# USE_WURFL : enable WURFL detection library from Scientiamobile
# USE_OBSOLETE_LINKER : use when the linker fails to emit __start_init/__stop_init
# USE_THREAD_DUMP : use the more advanced thread state dump system. Automatic.
-# USE_OT : enable the OpenTracing filter
# USE_MEMORY_PROFILING : enable the memory profiler. Linux-glibc only.
# USE_LIBATOMIC : force to link with/without libatomic. Automatic.
# USE_PTHREAD_EMULATION : replace pthread's rwlocks with ours
# LUA_INC : force the include path to lua
# LUA_LIB_NAME : force the lib name (or automatically evaluated, by order of
# priority: lua5.5, lua55, lua5.4, lua54, lua5.3, lua53, lua).
-# OT_DEBUG : compile the OpenTracing filter in debug mode
-# OT_INC : force the include path to libopentracing-c-wrapper
-# OT_LIB : force the lib path to libopentracing-c-wrapper
-# OT_RUNPATH : add RUNPATH for libopentracing-c-wrapper to haproxy executable
-# OT_USE_VARS : allows the use of variables for the OpenTracing context
# IGNOREGIT : ignore GIT commit versions if set.
# VERSION : force haproxy version reporting.
# SUBVERS : add a sub-version (eg: platform, model, ...).
USE_CPU_AFFINITY USE_TFO USE_NS USE_DL USE_RT USE_LIBATOMIC \
USE_MATH USE_DEVICEATLAS USE_51DEGREES \
USE_WURFL USE_OBSOLETE_LINKER USE_PRCTL USE_PROCCTL \
- USE_THREAD_DUMP USE_EVPORTS USE_OT USE_QUIC USE_PROMEX \
+ USE_THREAD_DUMP USE_EVPORTS USE_QUIC USE_PROMEX \
USE_MEMORY_PROFILING USE_SHM_OPEN \
USE_STATIC_PCRE USE_STATIC_PCRE2 \
USE_PCRE USE_PCRE_JIT USE_PCRE2 USE_PCRE2_JIT \
OPTIONS_OBJS += src/linuxcap.o
endif
-ifneq ($(USE_OT:0=),)
- $(call warning, The opentracing filter was deprecated in haproxy 3.3 and will be removed in 3.5.)
- include addons/ot/Makefile
-endif
-
ifneq ($(EXTRA_MAKE),)
include $(addsuffix /Makefile.mk,$(EXTRA_MAKE))
endif
+++ /dev/null
-Miroslav Zagorac <mzagorac@haproxy.com>
+++ /dev/null
-Miroslav Zagorac <mzagorac@haproxy.com>
+++ /dev/null
-# USE_OT : enable the OpenTracing filter
-# OT_DEBUG : compile the OpenTracing filter in debug mode
-# OT_INC : force the include path to libopentracing-c-wrapper
-# OT_LIB : force the lib path to libopentracing-c-wrapper
-# OT_RUNPATH : add libopentracing-c-wrapper RUNPATH to haproxy executable
-# OT_USE_VARS : allows the use of variables for the OpenTracing context
-
-OT_DEFINE =
-OT_CFLAGS =
-OT_LDFLAGS =
-OT_DEBUG_EXT =
-OT_PKGSTAT =
-OTC_WRAPPER = opentracing-c-wrapper
-
-ifneq ($(OT_DEBUG),)
-OT_DEBUG_EXT = _dbg
-OT_DEFINE = -DDEBUG_OT
-endif
-
-ifeq ($(OT_INC),)
-OT_PKGSTAT = $(shell pkg-config --exists $(OTC_WRAPPER)$(OT_DEBUG_EXT); echo $$?)
-OT_CFLAGS = $(shell pkg-config --silence-errors --cflags $(OTC_WRAPPER)$(OT_DEBUG_EXT))
-else
-ifneq ($(wildcard $(OT_INC)/$(OTC_WRAPPER)/.*),)
-OT_CFLAGS = -I$(OT_INC) $(if $(OT_DEBUG),-DOTC_DBG_MEM)
-endif
-endif
-
-ifeq ($(OT_PKGSTAT),)
-ifeq ($(OT_CFLAGS),)
-$(error OpenTracing C wrapper : can't find headers)
-endif
-else
-ifneq ($(OT_PKGSTAT),0)
-$(error OpenTracing C wrapper : can't find package)
-endif
-endif
-
-ifeq ($(OT_LIB),)
-OT_LDFLAGS = $(shell pkg-config --silence-errors --libs $(OTC_WRAPPER)$(OT_DEBUG_EXT))
-else
-ifneq ($(wildcard $(OT_LIB)/lib$(OTC_WRAPPER).*),)
-OT_LDFLAGS = -L$(OT_LIB) -l$(OTC_WRAPPER)$(OT_DEBUG_EXT)
-ifneq ($(OT_RUNPATH),)
-OT_LDFLAGS += -Wl,--rpath,$(OT_LIB)
-endif
-endif
-endif
-
-ifeq ($(OT_LDFLAGS),)
-$(error OpenTracing C wrapper : can't find library)
-endif
-
-OPTIONS_OBJS += \
- addons/ot/src/cli.o \
- addons/ot/src/conf.o \
- addons/ot/src/event.o \
- addons/ot/src/filter.o \
- addons/ot/src/group.o \
- addons/ot/src/http.o \
- addons/ot/src/opentracing.o \
- addons/ot/src/parser.o \
- addons/ot/src/pool.o \
- addons/ot/src/scope.o \
- addons/ot/src/util.o
-
-ifneq ($(OT_USE_VARS),)
-OT_DEFINE += -DUSE_OT_VARS
-OPTIONS_OBJS += \
- addons/ot/src/vars.o
-endif
-
-OT_CFLAGS := $(OT_CFLAGS) $(OT_DEFINE)
+++ /dev/null
- -----------------------------------------
- The HAProxy OpenTracing filter (OT)
- Version 1.0
- ( Last update: 2020-12-10 )
- -----------------------------------------
- Author : Miroslav Zagorac
- Contact : mzagorac at haproxy dot com
-
-
-SUMMARY
---------
-
- 0. Terms
- 1. Introduction
- 2. Build instructions
- 3. Basic concepts in OpenTracing
- 4. OT configuration
- 4.1. OT scope
- 4.2. "ot-tracer" section
- 4.3. "ot-scope" section
- 4.4. "ot-group" section
- 5. Examples
- 5.1 Benchmarking results
- 6. OT CLI
- 7. Known bugs and limitations
-
-
-0. Terms
----------
-
-* OT: The HAProxy OpenTracing filter
-
- OT is the HAProxy filter that allows you to send data to distributed
- tracing systems via the OpenTracing API.
-
-
-1. Introduction
-----------------
-
-Nowadays there is a growing need to divide a process into microservices and
-there is a problem of monitoring the work of the same process. One way to
-solve this problem is to use distributed tracing service in a central location,
-the so-called tracer.
-
-OT is a feature introduced in HAProxy 2.4. This filter enables communication
-via the OpenTracing API with OpenTracing compatible servers (tracers).
-Currently, tracers that support this API include Datadog, Jaeger, LightStep
-and Zipkin.
-
-Note: The OpenTracing filter shouldn't be used for new designs as OpenTracing
- itself is no longer maintained nor supported by its authors. As such
- OpenTracing will be deprecated in 3.3 and removed in 3.5. A replacement
- filter based on OpenTelemetry is available since 3.4 with complete build
- instructions currently at:
-
- https://github.com/haproxytech/haproxy-opentelemetry/
-
-The OT filter is a standard HAProxy filter, so what applies to others also
-applies to this one (of course, by that I mean what is described in the
-documentation, more precisely in the doc/internals/filters.txt file).
-
-The OT filter activation is done explicitly by specifying it in the HAProxy
-configuration. If this is not done, the OT filter in no way participates
-in the work of HAProxy.
-
-As for the impact on HAProxy speed, this is documented with several tests
-located in the test directory, and the result is found in the README-speed-*
-files. In short, the speed of operation depends on the way it is used and
-the complexity of the configuration, from an almost immeasurable impact to
-a significant deceleration (5x and more). I think that in some normal use
-the speed of HAProxy with the filter on will be quite satisfactory with a
-slowdown of less than 4% (provided that no more than 10% of requests are
-sent to the tracer, which is determined by the keyword 'rate-limit').
-
-The OT filter allows intensive use of ACLs, which can be defined anywhere in
-the configuration. Thus, it is possible to use the filter only for those
-connections that are of interest to us.
-
-
-2. Build instructions
-----------------------
-
-OT is the HAProxy filter and as such is compiled together with HAProxy.
-
-To communicate with some OpenTracing compatible tracer, the OT filter uses the
-OpenTracing C Wrapper library (which again uses the OpenTracing CPP library).
-This means that we must have both libraries installed on the system on which
-we want to compile or use HAProxy.
-
-Instructions for compiling and installing both required libraries can be
-found at https://github.com/haproxytech/opentracing-c-wrapper .
-
-Also, to use the OT filter when running HAProxy we need to have an OpenTracing
-plugin for the tracer we want to use. We will return to this later, in
-section 5.
-
-The OT filter can be more easily compiled using the pkg-config tool, if we
-have the OpenTracing C Wrapper library installed so that it contains pkg-config
-files (which have the .pc extension). If the pkg-config tool cannot be used,
-then the path to the directory where the include files and libraries are
-located can be explicitly specified.
-
-Below are examples of the two ways to compile HAProxy with the OT filter, the
-first using the pkg-congfig tool and the second explicitly specifying the path
-to the OpenTracing C Wrapper include and library.
-
-Note: prompt '%' indicates that the command is executed under a unprivileged
- user, while prompt '#' indicates that the command is executed under the
- root user.
-
-Example of compiling HAProxy using the pkg-congfig tool (assuming the
-OpenTracing C Wrapper library is installed in the /opt directory):
-
- % PKG_CONFIG_PATH=/opt/lib/pkgconfig make USE_OT=1 TARGET=linux-glibc
-
-The OT filter can also be compiled in debug mode as follows:
-
- % PKG_CONFIG_PATH=/opt/lib/pkgconfig make USE_OT=1 OT_DEBUG=1 TARGET=linux-glibc
-
-HAProxy compilation example explicitly specifying path to the OpenTracing C
-Wrapper include and library:
-
- % make USE_OT=1 OT_INC=/opt/include OT_LIB=/opt/lib TARGET=linux-glibc
-
-In case we want to use debug mode, then it looks like this:
-
- % make USE_OT=1 OT_DEBUG=1 OT_INC=/opt/include OT_LIB=/opt/lib TARGET=linux-glibc
-
-If the library we want to use is not installed on a unix system, then a locally
-installed library can be used (say, which is compiled and installed in the user
-home directory). In this case instead of /opt/include and /opt/lib the
-equivalent paths to the local installation should be specified. Of course,
-in that case the pkg-config tool can also be used if we have a complete
-installation (with .pc files).
-
-last but not least, if the pkg-config tool is not used when compiling, then
-HAProxy executable may not be able to find the OpenTracing C Wrapper library
-at startup. This can be solved in several ways, for example using the
-LD_LIBRARY_PATH environment variable which should be set to the path where the
-library is located before starting the HAProxy.
-
- % LD_LIBRARY_PATH=/opt/lib /path-to/haproxy ...
-
-Another way is to add RUNPATH to HAProxy executable that contains the path to
-the library in question.
-
- % make USE_OT=1 OT_RUNPATH=1 OT_INC=/opt/include OT_LIB=/opt/lib TARGET=linux-glibc
-
-After HAProxy is compiled, we can check if the OT filter is enabled:
-
- % ./haproxy -vv | grep opentracing
- --- command output ----------
- [ OT] opentracing
- --- command output ----------
-
-
-3. Basic concepts in OpenTracing
----------------------------------
-
-Basic concepts of OpenTracing can be read on the OpenTracing documentation
-website https://opentracing.io/docs/overview/.
-
-Here we will list only the most important elements of distributed tracing and
-these are 'trace', 'span' and 'span context'. Trace is a description of the
-complete transaction we want to record in the tracing system. A span is an
-operation that represents a unit of work that is recorded in a tracing system.
-Span context is a group of information related to a particular span that is
-passed on to the system (from service to service). Using this context, we can
-add new spans to already open trace (or supplement data in already open spans).
-
-An individual span may contain one or more tags, logs and baggage items.
-The tag is a key-value element that is valid for the entire span. Log is a
-key-value element that allows you to write some data at a certain time, it
-can be used for debugging. A baggage item is a key-value data pair that can
-be used for the duration of an entire trace, from the moment it is added to
-the span.
-
-
-4. OT configuration
---------------------
-
-In order for the OT filter to be used, it must be included in the HAProxy
-configuration, in the proxy section (frontend / listen / backend):
-
- frontend ot-test
- ...
- filter opentracing [id <id>] config <file>
- ...
-
-If no filter id is specified, 'ot-filter' is used as default. The 'config'
-parameter must be specified and it contains the path of the file used to
-configure the OT filter.
-
-
-4.1 OT scope
--------------
-
-If the filter id is defined for the OT filter, then the OT scope with
-the same name should be defined in the configuration file. In the same
-configuration file we can have several defined OT scopes.
-
-Each OT scope must have a defined (only one) "ot-tracer" section that is
-used to configure the operation of the OT filter and define the used groups
-and scopes.
-
-OT scope starts with the id of the filter specified in square brackets and
-ends with the end of the file or when a new OT scope is defined.
-
-For example, this defines two OT scopes in the same configuration file:
- [my-first-ot-filter]
- ot-tracer tracer1
- ...
- ot-group group1
- ...
- ot-scope scope1
- ...
-
- [my-second-ot-filter]
- ...
-
-
-4.2. "ot-tracer" section
--------------------------
-
-Only one "ot-tracer" section must be defined for each OT scope.
-
-There are several keywords that must be defined for the OT filter to work.
-These are 'config' which defines the configuration file for the OpenTracing
-API, and 'plugin' which defines the OpenTracing plugin used.
-
-Through optional keywords can be defined ACLs, logging, rate limit, and groups
-and scopes that define the tracing model.
-
-
-ot-tracer <name>
- A new OT with the name <name> is created.
-
- Arguments :
- name - the name of the tracer section
-
-
- The following keywords are supported in this section:
- - mandatory keywords:
- - config
- - plugin
-
- - optional keywords:
- - acl
- - debug-level
- - groups
- - [no] log
- - [no] option disabled
- - [no] option dontlog-normal
- - [no] option hard-errors
- - rate-limit
- - scopes
-
-
-acl <aclname> <criterion> [flags] [operator] <value> ...
- Declare or complete an access list.
-
- To configure and use the ACL, see section 7 of the HAProxy Configuration
- Manual.
-
-
-config <file>
- 'config' is one of the two mandatory keywords associated with the OT tracer
- configuration. This keyword sets the path of the configuration file for the
- OpenTracing tracer plugin. To set the contents of this configuration file,
- it is best to look at the documentation related to the OpenTracing tracer we
- want to use.
-
- Arguments :
- file - the path of the configuration file
-
-
-debug-level <value>
- This keyword sets the value of the debug level related to the display of
- debug messages in the OT filter. The 'debug-level' value is binary, ie
- a single value bit enables or disables the display of the corresponding
- debug message that uses that bit. The default value is set via the
- FLT_OT_DEBUG_LEVEL macro in the include/config.h file. Debug level value
- is used only if the OT filter is compiled with the debug mode enabled,
- otherwise it is ignored.
-
- Arguments :
- value - binary value ranging from 0 to 255 (8 bits)
-
-
-groups <name> ...
- A list of "ot-group" groups used for the currently defined tracer is declared.
- Several groups can be specified in one line.
-
- Arguments :
- name - the name of the OT group
-
-
-log global
-log <addr> [len <len>] [format <fmt>] <facility> [<level> [<minlevel>]]
-no log
- Enable per-instance logging of events and traffic.
-
- To configure and use the logging system, see section 4.2 of the HAProxy
- Configuration Manual.
-
-
-option disabled
-no option disabled
- Keyword which turns the operation of the OT filter on or off. By default
- the filter is on.
-
-
-option dontlog-normal
-no option dontlog-normal
- Enable or disable logging of normal, successful processing. By default,
- this option is disabled. For this option to be considered, logging must
- be turned on.
-
- See also: 'log' keyword description.
-
-
-option hard-errors
-no option hard-errors
- During the operation of the filter, some errors may occur, caused by
- incorrect configuration of the tracer or some error related to the operation
- of HAProxy. By default, such an error will not interrupt the filter
- operation for the stream in which the error occurred. If the 'hard-error'
- option is enabled, the operation error prohibits all further processing of
- events and groups in the stream in which the error occurred.
-
-
-plugin <file>
- 'plugin' is one of the two mandatory keywords associated with the OT tracer
- configuration. This keyword sets the path of the OpenTracing tracer plugin.
-
- Arguments :
- file - the name of the plugin used
-
-
-rate-limit <value>
- This option allows limiting the use of the OT filter, ie it can be influenced
- whether the OT filter is activated for a stream or not. Determining whether
- or not a filter is activated depends on the value of this option that is
- compared to a randomly selected value when attaching the filter to the stream.
- By default, the value of this option is set to 100.0, ie the OT filter is
- activated for each stream.
-
- Arguments :
- value - floating point value ranging from 0.0 to 100.0
-
-
-scopes <name> ...
- This keyword declares a list of "ot-scope" definitions used for the currently
- defined tracer. Multiple scopes can be specified in the same line.
-
- Arguments :
- name - the name of the OT scope
-
-
-4.3. "ot-scope" section
-------------------------
-
-Stream processing begins with filter attachment, then continues with the
-processing of a number of defined events and groups, and ends with filter
-detachment. The "ot-scope" section is used to define actions related to
-individual events. However, this section may be part of a group, so the
-event does not have to be part of the definition.
-
-
-ot-scope <name>
- Creates a new OT scope definition named <name>.
-
- Arguments :
- name - the name of the OT scope
-
-
- The following keywords are supported in this section:
- - acl
- - baggage
- - event
- - extract
- - finish
- - inject
- - log
- - span
- - tag
-
-
-acl <aclname> <criterion> [flags] [operator] <value> ...
- Declare or complete an access list.
-
- To configure and use the ACL, see section 7 of the HAProxy Configuration
- Manual.
-
-
-baggage <name> <sample> ...
- Baggage items allow the propagation of data between spans, ie allow the
- assignment of metadata that is propagated to future children spans.
- This data is formatted in the style of key-value pairs and is part of
- the context that can be transferred between processes that are part of
- a server architecture.
-
- This kewyord allows setting the baggage for the currently active span. The
- data type is always a string, ie any sample type is converted to a string.
- The exception is a binary value that is not supported by the OT filter.
-
- See the 'tag' keyword description for the data type conversion table.
-
- Arguments :
- name - key part of a data pair
- sample - sample expression (value part of a data pair), at least one
- sample must be present
-
-
-event <name> [{ if | unless } <condition>]
- Set the event that triggers the 'ot-scope' to which it is assigned.
- Optionally, it can be followed by an ACL-based condition, in which case it
- will only be evaluated if the condition is true.
-
- ACL-based conditions are executed in the context of a stream that processes
- the client and server connections. To configure and use the ACL, see
- section 7 of the HAProxy Configuration Manual.
-
- Arguments :
- name - the event name
- condition - a standard ACL-based condition
-
- Supported events are (the table gives the names of the events in the OT
- filter and the corresponding equivalent in the SPOE filter):
-
- -------------------------------------|------------------------------
- the OT filter | the SPOE filter
- -------------------------------------|------------------------------
- on-client-session-start | on-client-session
- on-frontend-tcp-request | on-frontend-tcp-request
- on-http-wait-request | -
- on-http-body-request | -
- on-frontend-http-request | on-frontend-http-request
- on-switching-rules-request | -
- on-backend-tcp-request | on-backend-tcp-request
- on-backend-http-request | on-backend-http-request
- on-process-server-rules-request | -
- on-http-process-request | -
- on-tcp-rdp-cookie-request | -
- on-process-sticking-rules-request | -
- on-client-session-end | -
- on-server-unavailable | -
- -------------------------------------|------------------------------
- on-server-session-start | on-server-session
- on-tcp-response | on-tcp-response
- on-http-wait-response | -
- on-process-store-rules-response | -
- on-http-response | on-http-response
- on-server-session-end | -
- -------------------------------------|------------------------------
-
-
-extract <name-prefix> [use-vars | use-headers]
- For a more detailed description of the propagation process of the span
- context, see the description of the keyword 'inject'. Only the process
- of extracting data from the carrier is described here.
-
- Arguments :
- name-prefix - data name prefix (ie key element prefix)
- use-vars - data is extracted from HAProxy variables
- use-headers - data is extracted from the HTTP header
-
-
- Below is an example of using HAProxy variables to transfer span context data:
-
- --- test/ctx/ot.cfg --------------------------------------------------------
- ...
- ot-scope client_session_start_2
- extract "ot_ctx_1" use-vars
- span "Client session" child-of "ot_ctx_1"
- ...
- ----------------------------------------------------------------------------
-
-
-finish <name> ...
- Closing a particular span or span context. Instead of the name of the span,
- there are several specially predefined names with which we can finish certain
- groups of spans. So it can be used as the name '*req*' for all open spans
- related to the request channel, '*res*' for all open spans related to the
- response channel and '*' for all open spans regardless of which channel they
- are related to. Several spans and/or span contexts can be specified in one
- line.
-
- Arguments :
- name - the name of the span or context context
-
-
-inject <name-prefix> [use-vars] [use-headers]
- In OpenTracing, the transfer of data related to the tracing process between
- microservices that are part of a larger service is done through the
- propagation of the span context. The basic operations that allow us to
- access and transfer this data are 'inject' and 'extract'.
-
- 'inject' allows us to extract span context so that the obtained data can
- be forwarded to another process (microservice) via the selected carrier.
- 'inject' in the name actually means inject data into carrier. Carrier is
- an interface here (ie a data structure) that allows us to transfer tracing
- state from one process to another.
-
- Data transfer can take place via one of two selected storage methods, the
- first is by adding data to the HTTP header and the second is by using HAProxy
- variables. Only data transfer via HTTP header can be used to transfer data
- to another process (ie microservice). All data is organized in the form of
- key-value data pairs.
-
- No matter which data transfer method you use, we need to specify a prefix
- for the key element. All alphanumerics (lowercase only) and underline
- character can be used to construct the data name prefix. Uppercase letters
- can actually be used, but they will be converted to lowercase when creating
- the prefix.
-
- Arguments :
- name-prefix - data name prefix (ie key element prefix)
- use-vars - HAProxy variables are used to store and transfer data
- use-headers - HTTP headers are used to store and transfer data
-
-
- Below is an example of using HTTP headers and variables, and how this is
- reflected in the internal data of the HAProxy process.
-
- --- test/ctx/ot.cfg --------------------------------------------------------
- ...
- ot-scope client_session_start_1
- span "HAProxy session" root
- inject "ot_ctx_1" use-headers use-vars
- ...
- ----------------------------------------------------------------------------
-
- - generated HAProxy variable (key -> value):
- txn.ot_ctx_1.uberDtraceDid -> 8f1a05a3518d2283:8f1a05a3518d2283:0:1
-
- - generated HTTP header (key: value):
- ot_ctx_1-uber-trace-id: 8f1a05a3518d2283:8f1a05a3518d2283:0:1
-
- Because HAProxy does not allow the '-' character in the variable name (which
- is automatically generated by the OpenTracing API and on which we have no
- influence), it is converted to the letter 'D'. We can see that there is no
- such conversion in the name of the HTTP header because the '-' sign is allowed
- there. Due to this conversion, initially all uppercase letters are converted
- to lowercase because otherwise we would not be able to distinguish whether
- the disputed sign '-' is used or not.
-
- Thus created HTTP headers and variables are deleted when executing the
- 'finish' keyword or when detaching the stream from the filter.
-
-
-log <name> <sample> ...
- This kewyord allows setting the log for the currently active span. The
- data type is always a string, ie any sample type is converted to a string.
- The exception is a binary value that is not supported by the OT filter.
-
- See the 'tag' keyword description for the data type conversion table.
-
- Arguments :
- name - key part of a data pair
- sample - sample expression (value part of a data pair), at least one
- sample must be present
-
-
-span <name> [<reference>]
- Creating a new span (or referencing an already opened one). If a new span
- is created, it can be a child of the referenced span, follow from the
- referenced span, or be root 'span'. In case we did not specify a reference
- to the previously created span, the new span will become the root span.
- We need to pay attention to the fact that in one trace there can be only
- one root span. In case we have specified a non-existent span as a reference,
- a new span will not be created.
-
- Arguments :
- name - the name of the span being created or referenced (operation
- name)
- reference - span or span context to which the created span is referenced
-
-
-tag <name> <sample> ...
- This kewyord allows setting a tag for the currently active span. The first
- argument is the name of the tag (tag ID) and the second its value. A value
- can consist of one or more data. If the value is only one data, then the
- type of that data depends on the type of the HAProxy sample. If the value
- contains more data, then the data type is string. The data conversion table
- is below:
-
- HAProxy sample data type | the OpenTracing data type
- --------------------------+---------------------------
- NULL | NULL
- BOOL | BOOL
- INT32 | INT64
- UINT32 | UINT64
- INT64 | INT64
- UINT64 | UINT64
- IPV4 | STRING
- IPV6 | STRING
- STRING | STRING
- BINARY | UNSUPPORTED
- --------------------------+---------------------------
-
- Arguments :
- name - key part of a data pair
- sample - sample expression (value part of a data pair), at least one
- sample must be present
-
-
-4.4. "ot-group" section
-------------------------
-
-This section allows us to define a group of OT scopes, that is not activated
-via an event but is triggered from TCP or HTTP rules. More precisely, these
-are the following rules: 'tcp-request', 'tcp-response', 'http-request',
-'http-response' and 'http-after-response'. These rules can be defined in the
-HAProxy configuration file.
-
-
-ot-group <name>
- Creates a new OT group definition named <name>.
-
- Arguments :
- name - the name of the OT group
-
-
- The following keywords are supported in this section:
- - scopes
-
-
-scopes <name> ...
- 'ot-scope' sections that are part of the specified group are defined. If
- the mentioned 'ot-scope' sections are used only in some OT group, they do
- not have to have defined events. Several 'ot-scope' sections can be
- specified in one line.
-
- Arguments :
- name - the name of the 'ot-scope' section
-
-
-5. Examples
-------------
-
-Several examples of the OT filter configuration can be found in the test
-directory. A brief description of the prepared configurations follows:
-
-cmp - the configuration very similar to that of the spoa-opentracing project.
- It was made to compare the speed of the OT filter with the
- implementation of distributed tracing via spoa-opentracing application.
-
-sa - the configuration in which all possible events are used.
-
-ctx - the configuration is very similar to the previous one, with the only
- difference that the spans are opened using the span context as a span
- reference.
-
-fe be - a slightly more complicated example of the OT filter configuration
- that uses two cascaded HAProxy services. The span context between
- HAProxy processes is transmitted via the HTTP header.
-
-empty - the empty configuration in which the OT filter is initialized but
- no event is triggered. It is not very usable, except to check the
- behavior of the OT filter in the case of a similar configuration.
-
-
-In order to be able to collect data (and view results via the web interface)
-we need to install some of the supported tracers. We will use the Jaeger
-tracer as an example. Installation instructions can be found on the website
-https://www.jaegertracing.io/download/. For the impatient, here we will list
-how the image to test the operation of the tracer system can be installed
-without much reading of the documentation.
-
- # docker pull jaegertracing/all-in-one:latest
- # docker run -d --name jaeger -e COLLECTOR_ZIPKIN_HTTP_PORT=9411 \
- -p 5775:5775/udp -p 6831:6831/udp -p 6832:6832/udp -p 5778:5778 \
- -p 16686:16686 -p 14268:14268 -p 9411:9411 jaegertracing/all-in-one:latest
-
-The last command will also initialize and run the Jaeger container. If we
-want to use that container later, it can be started and stopped in the classic
-way, using the 'docker container start/stop' commands.
-
-
-In order to be able to use any of the configurations from the test directory,
-we must also have a tracer plugin in that directory (all examples use the
-Jaeger tracer plugin). The simplest way is to download the tracer plugin
-using the already prepared shell script get-opentracing-plugins.sh.
-The script accepts one argument, the directory in which the download is made.
-If run without an argument, the script downloads all plugins to the current
-directory.
-
- % ./get-opentracing-plugins.sh
-
-After that, we can run one of the pre-configured configurations using the
-provided script run-xxx.sh (where xxx is the name of the configuration being
-tested). For example:
-
- % ./run-sa.sh
-
-The script will create a new log file each time it is run (because part of the
-log file name is the start time of the script).
-
-Eh, someone will surely notice that all test configurations use the Jaeger
-tracing plugin that cannot be downloaded using the get-opentracing-plugins.sh
-script. Unfortunately, the latest precompiled version that can be downloaded
-is 0.4.2, for newer ones only the source code can be found. Version 0.4.2 has
-a bug that can cause the operation of the OT filter to get stuck, so it is
-better not to use this version. Here is the procedure by which we can compile
-a newer version of the plugin (in our example it is 0.5.0).
-
-Important note: the GCC version must be at least 4.9 or later.
-
- % wget https://github.com/jaegertracing/jaeger-client-cpp/archive/v0.5.0.tar.gz
- % tar xf v0.5.0.tar.gz
- % cd jaeger-client-cpp-0.5.0
- % mkdir build
- % cd build
- % cmake -DCMAKE_INSTALL_PREFIX=/opt -DJAEGERTRACING_PLUGIN=ON -DHUNTER_CONFIGURATION_TYPES=Release -DHUNTER_BUILD_SHARED_LIBS=OFF ..
- % make
-
-After the plugin is compiled, it will be in the current directory. The name
-of the plugin is libjaegertracing_plugin.so.
-
-
-5.1. Benchmarking results
---------------------------
-
-To check the operation of the OT filter, several different test configurations
-have been made which are located in the test directory. The test results of
-the same configurations (with the names README-speed-xxx, where xxx is the name
-of the configuration being tested) are also in the directory of the same name.
-
-All tests were performed on the same debian 9.13 system, CPU i7-4770, 32 GB RAM.
-For the purpose of testing, the thttpd web server on port 8000 was used.
-Testing was done with the wrk utility running via run-xxx.sh scripts; that is,
-via the test-speed.sh script that is run as follows:
-
- % ./test-speed.sh all
-
-The above mentioned thttpd web server is run from that script and it should be
-noted that we need to have the same installed on the system (or change the path
-to the thttpd server in that script if it is installed elsewhere).
-
-Each test is performed several times over a period of 5 minutes per individual
-test. The only difference when running the tests for the same configuration
-was in changing the 'rate-limit' parameter (and the 'option disabled' option),
-which is set to the following values: 100.0, 50.0, 10.0, 2.5 and 0.0 percent.
-Then a test is performed with the OT filter active but disabled for request
-processing ('option disabled' is included in the ot.cfg configuration). In
-the last test, the OT filter is not used at all, ie it is not active and does
-not affect the operation of HAProxy in any way.
-
-
-6. OT CLI
-----------
-
-Via the HAProxy CLI interface we can find out the current status of the OT
-filter and change several of its settings.
-
-All supported CLI commands can be found in the following way, using the
-socat utility with the assumption that the HAProxy CLI socket path is set
-to /tmp/haproxy.sock (of course, instead of socat, nc or other utility can
-be used with a change in arguments when running the same):
-
- % echo "help" | socat - UNIX-CONNECT:/tmp/haproxy.sock | grep flt-ot
- --- command output ----------
- flt-ot debug [level] : set the OT filter debug level (default: get current debug level)
- flt-ot disable : disable the OT filter
- flt-ot enable : enable the OT filter
- flt-ot soft-errors : turning off hard-errors mode
- flt-ot hard-errors : enabling hard-errors mode
- flt-ot logging [state] : set logging state (default: get current logging state)
- flt-ot rate [value] : set the rate limit (default: get current rate value)
- flt-ot status : show the OT filter status
- --- command output ----------
-
-'flt-ot debug' can only be used in case the OT filter is compiled with the
-debug mode enabled.
-
-
-7. Known bugs and limitations
-------------------------------
-
-The name of the span context definition can contain only letters, numbers and
-characters '_' and '-'. Also, all uppercase letters in the name are converted
-to lowercase. The character '-' is converted internally to the 'D' character,
-and since a HAProxy variable is generated from that name, this should be taken
-into account if we want to use it somewhere in the HAProxy configuration.
-The above mentioned span context is used in the 'inject' and 'extract' keywords.
-
-Let's look a little at the example test/fe-be (configurations are in the
-test/fe and test/be directories, 'fe' is here the abbreviation for frontend
-and 'be' for backend). In case we have the 'rate-limit' set to a value less
-than 100.0, then distributed tracing will not be started with each new HTTP
-request. It also means that the span context will not be delivered (via the
-HTTP header) to the backend HAProxy process. The 'rate-limit' on the backend
-HAProxy must be set to 100.0, but because the frontend HAProxy does not send
-a span context every time, all such cases will cause an error to be reported
-on the backend server. Therefore, the 'hard-errors' option must be set on the
-backend server, so that processing on that stream is stopped as soon as the
-first error occurs. Such cases will slow down the backend server's response
-a bit (in the example in question it is about 3%).
+++ /dev/null
-Here I will write down some specifics of certain parts of the source, these are
-just some of my thoughts and clues and they are probably not too important for
-a wider audience.
-
-src/parser.c
-------------------------------------------------------------------------------
-The first thing to run when starting the HAProxy is the flt_ot_parse() function
-which actually parses the filter configuration.
-
-In case of correct configuration, the function returns ERR_NONE (or 0), while
-in case of incorrect configuration it returns the combination of ERR_* flags
-(ERR_NONE here does not belong to that bit combination because its value is 0).
-
-One of the parameters of the function is <char **err> in which an error message
-can be returned, if it exists. In that case the return value of the function
-should have some of the ERR_* flags set.
-
-Let's look at an example of the following filter configuration what the function
-call sequence looks like.
-
-Filter configuration line:
- filter opentracing [id <id>] config <file>
-
-Function call sequence:
- flt_ot_parse(<err>) {
- /* Initialization of the filter configuration data. */
- flt_ot_conf_init() {
- }
-
- /* Setting the filter name. */
- flt_ot_parse_keyword(<err>) {
- flt_ot_parse_strdup(<err>) {
- }
- }
-
- /* Setting the filter configuration file name. */
- flt_ot_parse_keyword(<err>) {
- flt_ot_parse_strdup(<err>) {
- }
- }
-
- /* Checking the configuration of the filter. */
- flt_ot_parse_cfg(<err>) {
- flt_ot_parse_cfg_tracer() {
- }
- ...
- flt_ot_post_parse_cfg_tracer() {
- }
- flt_ot_parse_cfg_group() {
- }
- ...
- flt_ot_post_parse_cfg_group() {
- }
- flt_ot_parse_cfg_scope() {
- }
- ...
- flt_ot_post_parse_cfg_scope() {
- }
- }
- }
-
-Checking the filter configuration is actually much more complicated, only the
-name of the main function flt_ot_parse_cfg() that does it is listed here.
-
-All functions that use the <err> parameter should set the error status using
-that pointer. All other functions (actually these are all functions called
-by the flt_ot_parse_cfg() function) should set the error message using the
-ha_warning()/ha_alert() HAProxy functions. Of course, the return value (the
-mentioned combination of ERR_* bits) is set in all these functions and it
-indicates whether the filter configuration is correct or not.
-
-
-src/group.c
-------------------------------------------------------------------------------
-The OT filter allows the use of groups within which one or more 'ot-scope'
-declarations can be found. These groups can be used using several HAProxy
-rules, more precisely 'http-request', 'http-response', 'tcp-request',
-'tcp-response' and 'http-after-response' rules.
-
-Configuration example for the specified rules:
- <rule> ot-group <filter-id> <group-name> [ { if | unless } <condition> ]
-
-Parsing each of these rules is performed by the flt_ot_group_parse() function.
-After parsing the configuration, its verification is performed via the
-flt_ot_group_check() function. One parsing function and one configuration
-check function are called for each defined rule.
-
- flt_ot_group_parse(<err>) {
- }
- ...
- flt_ot_group_check() {
- }
- ...
-
-
-When deinitializing the module, the function flt_ot_group_release() is called
-(which is actually an release_ptr callback function from one of the above
-rules). One callback function is called for each defined rule.
-
- flt_ot_group_release() {
- }
- ...
-
-
-src/filter.c
-------------------------------------------------------------------------------
-After parsing and checking the configuration, the flt_ot_check() function is
-called which associates the 'ot-group' and 'ot-scope' definitions with their
-declarations. This procedure concludes the configuration of the OT filter and
-after that its initialization is possible.
-
- flt_ops.check = flt_ot_check;
- flt_ot_check() {
- }
-
-
-The initialization of the OT filter is done via the flt_ot_init() callback
-function. In this function the OpenTracing API library is also initialized.
-It is also possible to initialize for each thread individually, but nothing
-is being done here for now.
-
- flt_ops.init = flt_ot_init;
- flt_ot_init() {
- flt_ot_cli_init() {
- }
- /* Initialization of the OpenTracing API. */
- ot_init(<err>) {
- }
- }
-
- flt_ops.init_per_thread = flt_ot_init_per_thread;
- flt_ot_init_per_thread() {
- }
- ...
-
-
-After the filter instance is created and attached to the stream, the
-flt_ot_attach() function is called. In this function a new OT runtime
-context is created, and flags are set that define which analyzers are used.
-
- flt_ops.attach = flt_ot_attach;
- flt_ot_attach() {
- /* In case OT is disabled, nothing is done on this stream further. */
- flt_ot_runtime_context_init(<err>) {
- flt_ot_pool_alloc() {
- }
- /* Initializing and setting the variable 'sess.ot.uuid'. */
- if (flt_ot_var_register(<err>) != -1) {
- flt_ot_var_set(<err>) {
- }
- }
- }
- }
-
-
-When a stream is started, this function is called. At the moment, nothing
-is being done in it.
-
- flt_ops.stream_start = flt_ot_stream_start;
- flt_ot_stream_start() {
- }
-
-
-Channel analyzers are called when executing individual filter events.
-For each of the four analyzer functions, the events associated with them
-are listed.
-
- Events:
- - 1 'on-client-session-start'
- - 15 'on-server-session-start'
-------------------------------------------------------------------------
- flt_ops.channel_start_analyze = flt_ot_channel_start_analyze;
- flt_ot_channel_start_analyze() {
- flt_ot_event_run() {
- /* Run event. */
- flt_ot_scope_run() {
- /* Processing of all ot-scopes defined for the current event. */
- }
- }
- }
-
-
- Events:
- - 2 'on-frontend-tcp-request'
- - 4 'on-http-body-request'
- - 5 'on-frontend-http-request'
- - 6 'on-switching-rules-request'
- - 7 'on-backend-tcp-request'
- - 8 'on-backend-http-request'
- - 9 'on-process-server-rules-request'
- - 10 'on-http-process-request'
- - 11 'on-tcp-rdp-cookie-request'
- - 12 'on-process-sticking-rules-request
- - 16 'on-tcp-response'
- - 18 'on-process-store-rules-response'
- - 19 'on-http-response'
-------------------------------------------------------------------------
- flt_ops.channel_pre_analyze = flt_ot_channel_pre_analyze;
- flt_ot_channel_pre_analyze() {
- flt_ot_event_run() {
- /* Run event. */
- flt_ot_scope_run() {
- /* Processing of all ot-scopes defined for the current event. */
- }
- }
- }
-
-
- Events:
- - 3 'on-http-wait-request'
- - 17 'on-http-wait-response'
-------------------------------------------------------------------------
- flt_ops.channel_post_analyze = flt_ot_channel_post_analyze;
- flt_ot_channel_post_analyze() {
- flt_ot_event_run() {
- /* Run event. */
- flt_ot_scope_run() {
- /* Processing of all ot-scopes defined for the current event. */
- }
- }
- }
-
-
- Events:
- - 13 'on-client-session-end'
- - 14 'on-server-unavailable'
- - 20 'on-server-session-end'
-------------------------------------------------------------------------
- flt_ops.channel_end_analyze = flt_ot_channel_end_analyze;
- flt_ot_channel_end_analyze() {
- flt_ot_event_run() {
- /* Run event. */
- flt_ot_scope_run() {
- /* Processing of all ot-scopes defined for the current event. */
- }
- }
-
- /* In case the backend server does not work, event 'on-server-unavailable'
- is called here before event 'on-client-session-end'. */
- if ('on-server-unavailable') {
- flt_ot_event_run() {
- /* Run event. */
- flt_ot_scope_run() {
- /* Processing of all ot-scopes defined for the current event. */
- }
- }
- }
- }
-
-
-After the stream has stopped, this function is called. At the moment, nothing
-is being done in it.
-
- flt_ops.stream_stop = flt_ot_stream_stop;
- flt_ot_stream_stop() {
- }
-
-
-Then, before the instance filter is detached from the stream, the following
-function is called. It deallocates the runtime context of the OT filter.
-
- flt_ops.detach = flt_ot_detach;
- flt_ot_detach() {
- flt_ot_runtime_context_free() {
- flt_ot_pool_free() {
- }
- }
- }
-
-
-Module deinitialization begins with deinitialization of individual threads
-(as many threads as configured for the HAProxy process). Because nothing
-special is connected to the process threads, nothing is done in this function.
-
- flt_ops.deinit_per_thread = flt_ot_deinit_per_thread;
- flt_ot_deinit_per_thread() {
- }
- ...
-
-
-For this function see the above description related to the src/group.c file.
-
- flt_ot_group_release() {
- }
- ...
-
-
-Module deinitialization ends with the flt_ot_deinit() function, in which all
-memory occupied by module operation (and OpenTracing API operation, of course)
-is freed.
-
- flt_ops.deinit = flt_ot_deinit;
- flt_ot_deinit() {
- ot_close() {
- }
- flt_ot_conf_free() {
- }
- }
+++ /dev/null
-Used pools:
-
--------------------------------+-----------------------------+-----------------------------
- head / name | size | define
--------------------------------+-----------------------------+-----------------------------
- pool_head_ buffer | global.tune.bufsize = 16384 | USE_POOL_BUFFER
- pool_head_ trash | 32 + 16384 | USE_TRASH_CHUNK
--------------------------------+-----------------------------+-----------------------------
- pool_head_ ot_scope_span | 96 | USE_POOL_OT_SCOPE_SPAN
- pool_head_ ot_scope_context | 64 | USE_POOL_OT_SCOPE_CONTEXT
- pool_head_ ot_runtime_context | 128 | USE_POOL_OT_RUNTIME_CONTEXT
- pool_head_ ot_span_context | 96 | USE_POOL_OT_SPAN_CONTEXT
--------------------------------+-----------------------------+-----------------------------
-
-By defining individual definitions in file include/config.h, it is possible to
-switch individual pools on / off. If a particular pool is not used, memory is
-used in a 'normal' way instead, using malloc()/free() functions.
-
-This is made only from the aspect of debugging the program, i.e. comparing the
-speed of operation using different methods of working with memory.
-
-In general, it would be better to use memory pools, due to less fragmentation
-of memory space after long operation of the program. The speed of operation
-is similar to when using standard allocation functions (when testing it was
-shown that pool use was fast by about 1%).
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_CLI_H_
-#define _OPENTRACING_CLI_H_
-
-#define FLT_OT_CLI_CMD "flt-ot"
-
-#define FLT_OT_CLI_LOGGING_OFF "off"
-#define FLT_OT_CLI_LOGGING_ON "on"
-#define FLT_OT_CLI_LOGGING_NOLOGNORM "dontlog-normal"
-#define FLT_OT_CLI_LOGGING_STATE(a) ((a) & FLT_OT_LOGGING_ON) ? (((a) & FLT_OT_LOGGING_NOLOGNORM) ? "enabled, " FLT_OT_CLI_LOGGING_NOLOGNORM : "enabled") : "disabled"
-
-#define FLT_OT_CLI_MSG_CAT(a) ((a) == NULL) ? "" : (a), ((a) == NULL) ? "" : "\n"
-
-enum FLT_OT_LOGGING_enum {
- FLT_OT_LOGGING_OFF = 0,
- FLT_OT_LOGGING_ON = 1 << 0,
- FLT_OT_LOGGING_NOLOGNORM = 1 << 1,
-};
-
-
-void flt_ot_cli_init(void);
-
-#endif /* _OPENTRACING_CLI_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_CONF_H_
-#define _OPENTRACING_CONF_H_
-
-#define FLT_OT_CONF(f) ((struct flt_ot_conf *)FLT_CONF(f))
-#define FLT_OT_CONF_HDR_FMT "%p:{ { '%.*s' %zu %d } "
-#define FLT_OT_CONF_HDR_ARGS(a,b) (a), (int)(a)->b##_len, (a)->b, (a)->b##_len, (a)->cfg_line
-#define FLT_OT_STR_HDR_ARGS(a,b) (a)->b, (a)->b##_len
-
-#define FLT_OT_DBG_CONF_SAMPLE_EXPR(f,a) \
- FLT_OT_DBG(3, "%s%p:{ '%s' %p }", (f), (a), (a)->value, (a)->expr)
-
-#define FLT_OT_DBG_CONF_SAMPLE(f,a) \
- FLT_OT_DBG(3, "%s%p:{ '%s' '%s' %s %d }", \
- (f), (a), (a)->key, (a)->value, flt_ot_list_debug(&((a)->exprs)), (a)->num_exprs)
-
-#define FLT_OT_DBG_CONF_STR(f,a) \
- FLT_OT_DBG(3, f FLT_OT_CONF_HDR_FMT "}", FLT_OT_CONF_HDR_ARGS(a, str))
-
-#define FLT_OT_DBG_CONF_CONTEXT(f,a) \
- FLT_OT_DBG(3, f FLT_OT_CONF_HDR_FMT "0x%02hhx }", FLT_OT_CONF_HDR_ARGS(a, id), (a)->flags)
-
-#define FLT_OT_DBG_CONF_SPAN(f,a) \
- FLT_OT_DBG(3, f FLT_OT_CONF_HDR_FMT "'%s' %zu %d '%s' %zu %hhu 0x%02hhx %s %s %s }", \
- FLT_OT_CONF_HDR_ARGS(a, id), FLT_OT_STR_HDR_ARGS(a, ref_id), (a)->ref_type, \
- FLT_OT_STR_HDR_ARGS(a, ctx_id), (a)->flag_root, (a)->ctx_flags, flt_ot_list_debug(&((a)->tags)), \
- flt_ot_list_debug(&((a)->logs)), flt_ot_list_debug(&((a)->baggages)))
-
-#define FLT_OT_DBG_CONF_SCOPE(f,a) \
- FLT_OT_DBG(3, f FLT_OT_CONF_HDR_FMT "%hhu %d %s %p %s %s %s }", \
- FLT_OT_CONF_HDR_ARGS(a, id), (a)->flag_used, (a)->event, flt_ot_list_debug(&((a)->acls)), \
- (a)->cond, flt_ot_list_debug(&((a)->contexts)), flt_ot_list_debug(&((a)->spans)), \
- flt_ot_list_debug(&((a)->finish)))
-
-#define FLT_OT_DBG_CONF_GROUP(f,a) \
- FLT_OT_DBG(3, f FLT_OT_CONF_HDR_FMT "%hhu %s }", \
- FLT_OT_CONF_HDR_ARGS(a, id), (a)->flag_used, flt_ot_list_debug(&((a)->ph_scopes)))
-
-#define FLT_OT_DBG_CONF_PH(f,a) \
- FLT_OT_DBG(3, f FLT_OT_CONF_HDR_FMT "%p }", FLT_OT_CONF_HDR_ARGS(a, id), (a)->ptr)
-
-#define FLT_OT_DBG_CONF_TRACER(f,a) \
- FLT_OT_DBG(3, f FLT_OT_CONF_HDR_FMT "'%s' %p '%s' %p %u %hhu %hhu 0x%02hhx %p:%s 0x%08x %s %s %s }", \
- FLT_OT_CONF_HDR_ARGS(a, id), (a)->config, (a)->cfgbuf, (a)->plugin, (a)->tracer, (a)->rate_limit, (a)->flag_harderr, \
- (a)->flag_disabled, (a)->logging, &((a)->proxy_log), flt_ot_list_debug(&((a)->proxy_log.loggers)), (a)->analyzers, \
- flt_ot_list_debug(&((a)->acls)), flt_ot_list_debug(&((a)->ph_groups)), flt_ot_list_debug(&((a)->ph_scopes)))
-
-#define FLT_OT_DBG_CONF(f,a) \
- FLT_OT_DBG(3, "%s%p:{ %p '%s' '%s' %p %s %s }", \
- (f), (a), (a)->proxy, (a)->id, (a)->cfg_file, (a)->tracer, \
- flt_ot_list_debug(&((a)->groups)), flt_ot_list_debug(&((a)->scopes)))
-
-#define FLT_OT_STR_HDR(a) \
- struct { \
- char *a; \
- size_t a##_len; \
- }
-
-#define FLT_OT_CONF_HDR(a) \
- struct { \
- FLT_OT_STR_HDR(a); \
- int cfg_line; \
- struct list list; \
- }
-
-
-struct flt_ot_conf_hdr {
- FLT_OT_CONF_HDR(id);
-};
-
-/* flt_ot_conf_sample->exprs */
-struct flt_ot_conf_sample_expr {
- FLT_OT_CONF_HDR(value); /* The sample value. */
- struct sample_expr *expr; /* The sample expression. */
-};
-
-/*
- * flt_ot_conf_span->tags
- * flt_ot_conf_span->logs
- * flt_ot_conf_span->baggages
- */
-struct flt_ot_conf_sample {
- FLT_OT_CONF_HDR(key); /* The sample name. */
- char *value; /* The sample content. */
- struct list exprs; /* Used to chain sample expressions. */
- int num_exprs; /* Number of defined expressions. */
-};
-
-/* flt_ot_conf_scope->finish */
-struct flt_ot_conf_str {
- FLT_OT_CONF_HDR(str); /* String content/length. */
-};
-
-/* flt_ot_conf_scope->contexts */
-struct flt_ot_conf_context {
- FLT_OT_CONF_HDR(id); /* The name of the context. */
- uint8_t flags; /* The type of storage from which the span context is extracted. */
-};
-
-/* flt_ot_conf_scope->spans */
-struct flt_ot_conf_span {
- FLT_OT_CONF_HDR(id); /* The name of the span. */
- FLT_OT_STR_HDR(ref_id); /* The reference name, if used. */
- int ref_type; /* The reference type. */
- FLT_OT_STR_HDR(ctx_id); /* The span context name, if used. */
- uint8_t ctx_flags; /* The type of storage used for the span context. */
- bool flag_root; /* Whether this is a root span. */
- struct list tags; /* The set of key:value tags. */
- struct list logs; /* The set of key:value logs. */
- struct list baggages; /* The set of key:value baggage items. */
-};
-
-struct flt_ot_conf_scope {
- FLT_OT_CONF_HDR(id); /* The scope name. */
- bool flag_used; /* The indication that the scope is being used. */
- int event; /* FLT_OT_EVENT_* */
- struct list acls; /* ACLs declared on this scope. */
- struct acl_cond *cond; /* ACL condition to meet. */
- struct list contexts; /* Declared contexts. */
- struct list spans; /* Declared spans. */
- struct list finish; /* The list of spans to be finished. */
-};
-
-struct flt_ot_conf_group {
- FLT_OT_CONF_HDR(id); /* The group name. */
- bool flag_used; /* The indication that the group is being used. */
- struct list ph_scopes; /* List of all used scopes. */
-};
-
-struct flt_ot_conf_ph {
- FLT_OT_CONF_HDR(id); /* The scope/group name. */
- void *ptr; /* Pointer to real placeholder structure. */
-};
-#define flt_ot_conf_ph_group flt_ot_conf_ph
-#define flt_ot_conf_ph_scope flt_ot_conf_ph
-
-struct flt_ot_conf_tracer {
- FLT_OT_CONF_HDR(id); /* The tracer name. */
- char *config; /* The OpenTracing configuration file name. */
- char *cfgbuf; /* The OpenTracing configuration. */
- char *plugin; /* The OpenTracing plugin library file name. */
- struct otc_tracer *tracer; /* The OpenTracing tracer handle. */
- uint32_t rate_limit; /* [0 2^32-1] <-> [0.0 100.0] */
- bool flag_harderr; /* [0 1] */
- bool flag_disabled; /* [0 1] */
- uint8_t logging; /* [0 1 3] */
- struct proxy proxy_log; /* The log server list. */
- uint analyzers; /* Defined channel analyzers. */
- struct list acls; /* ACLs declared on this tracer. */
- struct list ph_groups; /* List of all used groups. */
- struct list ph_scopes; /* List of all used scopes. */
-};
-
-struct flt_ot_counters {
-#ifdef DEBUG_OT
- struct {
- bool flag_used; /* Whether this event is used. */
- uint64_t htx[2]; /* htx_is_empty() function result counter. */
- } event[FLT_OT_EVENT_MAX];
-#endif
-
- uint64_t disabled[2]; /* How many times stream processing is disabled. */
-};
-
-/* The OpenTracing filter configuration. */
-struct flt_ot_conf {
- struct proxy *proxy; /* Proxy owning the filter. */
- char *id; /* The OpenTracing filter id. */
- char *cfg_file; /* The OpenTracing filter configuration file name. */
- struct flt_ot_conf_tracer *tracer; /* There can only be one tracer. */
- struct list groups; /* List of all available groups. */
- struct list scopes; /* List of all available scopes. */
- struct flt_ot_counters cnt; /* Various counters related to filter operation. */
-};
-
-
-#define flt_ot_conf_ph_group_free flt_ot_conf_ph_free
-#define flt_ot_conf_ph_scope_free flt_ot_conf_ph_free
-
-struct flt_ot_conf_ph *flt_ot_conf_ph_init(const char *id, int linenum, struct list *head, char **err);
-void flt_ot_conf_ph_free(struct flt_ot_conf_ph **ptr);
-struct flt_ot_conf_sample_expr *flt_ot_conf_sample_expr_init(const char *id, int linenum, struct list *head, char **err);
-void flt_ot_conf_sample_expr_free(struct flt_ot_conf_sample_expr **ptr);
-struct flt_ot_conf_sample *flt_ot_conf_sample_init(char **args, int linenum, struct list *head, char **err);
-void flt_ot_conf_sample_free(struct flt_ot_conf_sample **ptr);
-struct flt_ot_conf_str *flt_ot_conf_str_init(const char *id, int linenum, struct list *head, char **err);
-void flt_ot_conf_str_free(struct flt_ot_conf_str **ptr);
-struct flt_ot_conf_context *flt_ot_conf_context_init(const char *id, int linenum, struct list *head, char **err);
-void flt_ot_conf_context_free(struct flt_ot_conf_context **ptr);
-struct flt_ot_conf_span *flt_ot_conf_span_init(const char *id, int linenum, struct list *head, char **err);
-void flt_ot_conf_span_free(struct flt_ot_conf_span **ptr);
-struct flt_ot_conf_scope *flt_ot_conf_scope_init(const char *id, int linenum, struct list *head, char **err);
-void flt_ot_conf_scope_free(struct flt_ot_conf_scope **ptr);
-struct flt_ot_conf_group *flt_ot_conf_group_init(const char *id, int linenum, struct list *head, char **err);
-void flt_ot_conf_group_free(struct flt_ot_conf_group **ptr);
-struct flt_ot_conf_tracer *flt_ot_conf_tracer_init(const char *id, int linenum, char **err);
-void flt_ot_conf_tracer_free(struct flt_ot_conf_tracer **ptr);
-struct flt_ot_conf *flt_ot_conf_init(struct proxy *px);
-void flt_ot_conf_free(struct flt_ot_conf **ptr);
-
-#endif /* _OPENTRACING_CONF_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_CONFIG_H_
-#define _OPENTRACING_CONFIG_H_
-
-#undef DEBUG_OT_SYSTIME
-#define USE_POOL_BUFFER
-#define USE_POOL_OT_SPAN_CONTEXT
-#define USE_POOL_OT_SCOPE_SPAN
-#define USE_POOL_OT_SCOPE_CONTEXT
-#define USE_POOL_OT_RUNTIME_CONTEXT
-#define USE_TRASH_CHUNK
-
-#define FLT_OT_ID_MAXLEN 64
-#define FLT_OT_MAXTAGS 8
-#define FLT_OT_MAXBAGGAGES 8
-#define FLT_OT_RATE_LIMIT_MAX 100.0
-#define FLT_OT_DEBUG_LEVEL 0b00001111
-
-#endif /* _OPENTRACING_CONFIG_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_DEBUG_H_
-#define _OPENTRACING_DEBUG_H_
-
-#ifdef DEBUG_FULL
-# define DEBUG_OT
-#endif
-
-#ifdef DEBUG_OT
-# ifdef DEBUG_OT_SYSTIME
-# define FLT_OT_DBG_FMT(f) "[% 2d] %ld.%06ld [" FLT_OT_SCOPE "]: " f, tid, date.tv_sec, date.tv_usec
-# else
-# define FLT_OT_DBG_FMT(f) "[% 2d] %11.6f [" FLT_OT_SCOPE "]: " f, tid, FLT_OT_TV_UDIFF(&(flt_ot_debug.start), &date) / 1e6
-# endif
-# define FLT_OT_DBG_INDENT " "
-# define FLT_OT_DBG(l,f, ...) \
- do { \
- if (!(l) || (flt_ot_debug.level & (1 << (l)))) \
- (void)fprintf(stderr, FLT_OT_DBG_FMT("%.*s" f "\n"), \
- flt_ot_dbg_indent_level, FLT_OT_DBG_INDENT, ##__VA_ARGS__); \
- } while (0)
-# define FLT_OT_FUNC(f, ...) do { FLT_OT_DBG(1, "%s(" f ") {", __func__, ##__VA_ARGS__); flt_ot_dbg_indent_level += 3; } while (0)
-# define FLT_OT_RETURN(a) do { flt_ot_dbg_indent_level -= 3; FLT_OT_DBG(1, "}"); return a; } while (0)
-# define FLT_OT_RETURN_EX(a,t,f) do { flt_ot_dbg_indent_level -= 3; { t _r = (a); FLT_OT_DBG(1, "} = " f, _r); return _r; } } while (0)
-# define FLT_OT_RETURN_INT(a) FLT_OT_RETURN_EX((a), int, "%d")
-# define FLT_OT_RETURN_PTR(a) FLT_OT_RETURN_EX((a), void *, "%p")
-# define FLT_OT_DBG_IFDEF(a,b) a
-# define FLT_OT_DBG_ARGS(a, ...) a, ##__VA_ARGS__
-# define FLT_OT_DBG_BUF(a,b) do { FLT_OT_DBG((a), "%p:{ %zu %p %zu %zu }", (b), (b)->size, (b)->area, (b)->data, (b)->head); } while (0)
-
-struct flt_ot_debug {
-#ifndef DEBUG_OT_SYSTIME
- struct timeval start;
-#endif
- uint8_t level;
-};
-
-
-extern THREAD_LOCAL int flt_ot_dbg_indent_level;
-extern struct flt_ot_debug flt_ot_debug;
-
-#else
-
-# define FLT_OT_DBG(...) while (0)
-# define FLT_OT_FUNC(...) while (0)
-# define FLT_OT_RETURN(a) return a
-# define FLT_OT_RETURN_EX(a,t,f) return a
-# define FLT_OT_RETURN_INT(a) return a
-# define FLT_OT_RETURN_PTR(a) return a
-# define FLT_OT_DBG_IFDEF(a,b) b
-# define FLT_OT_DBG_ARGS(...)
-# define FLT_OT_DBG_BUF(a,b) while (0)
-#endif /* DEBUG_OT */
-
-/*
- * ON | NOLOGNORM |
- * -----+-----------+-------------
- * 0 | 0 | no log
- * 0 | 1 | no log
- * 1 | 0 | log all
- * 1 | 1 | log errors
- * -----+-----------+-------------
- */
-#define FLT_OT_LOG(l,f, ...) \
- do { \
- if (!(conf->tracer->logging & FLT_OT_LOGGING_ON)) \
- FLT_OT_DBG(3, "NOLOG[%d]: [" FLT_OT_SCOPE "]: [%s] " f, (l), conf->id, ##__VA_ARGS__); \
- else if ((conf->tracer->logging & FLT_OT_LOGGING_NOLOGNORM) && ((l) > LOG_ERR)) \
- FLT_OT_DBG(2, "NOLOG[%d]: [" FLT_OT_SCOPE "]: [%s] " f, (l), conf->id, ##__VA_ARGS__); \
- else { \
- send_log(&(conf->tracer->proxy_log), (l), "[" FLT_OT_SCOPE "]: [%s] " f "\n", conf->id, ##__VA_ARGS__); \
- \
- FLT_OT_DBG(1, "LOG[%d]: %s", (l), logline); \
- } \
- } while (0)
-
-#endif /* _OPENTRACING_DEBUG_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_DEFINE_H_
-#define _OPENTRACING_DEFINE_H_
-
-#define FLT_OT_DEREF(a,m,v) (((a) != NULL) ? (a)->m : (v))
-#define FLT_OT_DDEREF(a,m,v) ((((a) != NULL) && (*(a) != NULL)) ? (*(a))->m : (v))
-#define FLT_OT_TABLESIZE(a) (sizeof(a) / sizeof((a)[0]))
-#define FLT_OT_IN_RANGE(v,a,b) (((v) >= (a)) && ((v) <= (b)))
-#define FLT_OT_DPTR_ARGS(a) (a), ((a) == NULL) ? NULL : *(a)
-#define FLT_OT_ARG_ISVALID(n) ((args[n] != NULL) && *args[n])
-#define FLT_OT_TV_UDIFF(a,b) (((b)->tv_sec - (a)->tv_sec) * 1000000 + (b)->tv_usec - (a)->tv_usec)
-#define FLT_OT_U32_FLOAT(a,b) ((a) * (double)(b) / UINT32_MAX)
-#define FLT_OT_FLOAT_U32(a,b) ((uint32_t)((a) / (double)(b) * UINT32_MAX + 0.5))
-
-#define FLT_OT_STR_DASH_72 "------------------------------------------------------------------------"
-#define FLT_OT_STR_DASH_78 FLT_OT_STR_DASH_72 "------"
-#define FLT_OT_STR_FLAG_YN(a) (a) ? "yes" : "no"
-
-#define FLT_OT_STR_SIZE(a) (sizeof(a) - 1)
-#define FLT_OT_STR_ADDRSIZE(a) (a), FLT_OT_STR_SIZE(a)
-#define FLT_OT_STR_ISVALID(a) (((a) != NULL) && (*(a) != '\0'))
-#define FLT_OT_STR_CMP(S,s,l) (((l) == FLT_OT_STR_SIZE(S)) && (memcmp((s), FLT_OT_STR_ADDRSIZE(S)) == 0))
-#define FLT_OT_STR_ELLIPSIS(a,n) do { if ((a) != NULL) { if ((n) > 0) (a)[(n) - 1] = '\0'; if ((n) > 3) (a)[(n) - 2] = (a)[(n) - 3] = (a)[(n) - 4] = '.'; } } while (0)
-#define FLT_OT_NIBBLE_TO_HEX(a) ((a) + (((a) < 10) ? '0' : ('a' - 10)))
-
-#define FLT_OT_FREE(a) do { if ((a) != NULL) OTC_DBG_FREE(a); } while (0)
-#define FLT_OT_FREE_VOID(a) do { if ((a) != NULL) OTC_DBG_FREE((void *)(a)); } while (0)
-#define FLT_OT_FREE_CLEAR(a) do { if ((a) != NULL) { OTC_DBG_FREE(a); (a) = NULL; } } while (0)
-#define FLT_OT_STRDUP(s) OTC_DBG_STRDUP(s)
-#define FLT_OT_STRNDUP(s,n) OTC_DBG_STRNDUP((s), (n))
-#define FLT_OT_CALLOC(n,e) OTC_DBG_CALLOC((n), (e))
-#define FLT_OT_MALLOC(s) OTC_DBG_MALLOC((s))
-#define FLT_OT_MEMINFO() OTC_DBG_MEMINFO()
-
-#define FLT_OT_RUN_ONCE(f) do { static bool __f = 1; if (__f) { __f = 0; f; } } while (0)
-
-#define FLT_OT_LIST_ISVALID(a) (((a) != NULL) && ((a)->n != NULL) && ((a)->p != NULL))
-#define FLT_OT_LIST_DEL(a) do { if (FLT_OT_LIST_ISVALID(a)) LIST_DELETE(a); } while (0)
-#define FLT_OT_LIST_DESTROY(t,h) \
- do { \
- struct flt_ot_conf_##t *_ptr, *_back; \
- \
- if (!FLT_OT_LIST_ISVALID(h) || LIST_ISEMPTY(h)) \
- break; \
- \
- FLT_OT_DBG(2, "- deleting " #t " list %s", flt_ot_list_debug(h)); \
- \
- list_for_each_entry_safe(_ptr, _back, (h), list) \
- flt_ot_conf_##t##_free(&_ptr); \
- } while (0)
-
-#define FLT_OT_BUFFER_THR(b,m,n,p) \
- static THREAD_LOCAL char b[m][n]; \
- static THREAD_LOCAL size_t __idx = 0; \
- char *p = b[__idx]; \
- __idx = (__idx + 1) % (m)
-
-#define FLT_OT_ERR(f, ...) \
- do { \
- if ((err != NULL) && (*err == NULL)) { \
- (void)memprintf(err, f, ##__VA_ARGS__); \
- \
- FLT_OT_DBG(3, "%d err: '%s'", __LINE__, *err); \
- } \
- } while (0)
-#define FLT_OT_ERR_APPEND(f, ...) \
- do { \
- if (err != NULL) \
- (void)memprintf(err, f, ##__VA_ARGS__); \
- } while (0)
-#define FLT_OT_ERR_FREE(p) \
- do { \
- if ((p) == NULL) \
- break; \
- \
- FLT_OT_DBG(0, "%s:%d: ERROR: %s", __func__, __LINE__, (p)); \
- FLT_OT_FREE_CLEAR(p); \
- } while (0)
-
-#endif /* _OPENTRACING_DEFINE_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_EVENT_H_
-#define _OPENTRACING_EVENT_H_
-
-/*
- * This must be defined in order for macro FLT_OT_EVENT_DEFINES
- * and structure flt_ot_event_data to have the correct contents.
- */
-#define AN_REQ_NONE 0
-#define AN_REQ_CLIENT_SESS_START 0
-#define AN_REQ_SERVER_UNAVAILABLE 0
-#define AN_REQ_CLIENT_SESS_END 0
-#define AN_RES_SERVER_SESS_START 0
-#define AN_RES_SERVER_SESS_END 0
-#define SMP_VAL_FE_ 0
-#define SMP_VAL_BE_ 0
-
-/*
- * Event names are selected to be somewhat compatible with the SPOE filter,
- * from which the following names are taken:
- * - on-client-session -> on-client-session-start
- * - on-frontend-tcp-request
- * - on-frontend-http-request
- * - on-backend-tcp-request
- * - on-backend-http-request
- * - on-server-session -> on-server-session-start
- * - on-tcp-response
- * - on-http-response
- *
- * FLT_OT_EVENT_NONE is used as an index for 'ot-scope' sections that do not
- * have an event defined. The 'ot-scope' sections thus defined can be used
- * within the 'ot-group' section.
- *
- * A description of the macro arguments can be found in the structure
- * flt_ot_event_data definition
- */
-#define FLT_OT_EVENT_DEFINES \
- FLT_OT_EVENT_DEF( NONE, REQ, , , 0, "") \
- FLT_OT_EVENT_DEF( CLIENT_SESS_START, REQ, CON_ACC, , 1, "on-client-session-start") \
- FLT_OT_EVENT_DEF( INSPECT_FE, REQ, REQ_CNT, , 1, "on-frontend-tcp-request") \
- FLT_OT_EVENT_DEF( WAIT_HTTP, REQ, , , 1, "on-http-wait-request") \
- FLT_OT_EVENT_DEF( HTTP_BODY, REQ, , , 1, "on-http-body-request") \
- FLT_OT_EVENT_DEF( HTTP_PROCESS_FE, REQ, HRQ_HDR, , 1, "on-frontend-http-request") \
- FLT_OT_EVENT_DEF( SWITCHING_RULES, REQ, , , 1, "on-switching-rules-request") \
- FLT_OT_EVENT_DEF( INSPECT_BE, REQ, REQ_CNT, REQ_CNT, 1, "on-backend-tcp-request") \
- FLT_OT_EVENT_DEF( HTTP_PROCESS_BE, REQ, HRQ_HDR, HRQ_HDR, 1, "on-backend-http-request") \
-/* FLT_OT_EVENT_DEF( HTTP_TARPIT, REQ, , , 1, "on-http-tarpit-request") */ \
- FLT_OT_EVENT_DEF( SRV_RULES, REQ, , , 1, "on-process-server-rules-request") \
- FLT_OT_EVENT_DEF( HTTP_INNER, REQ, , , 1, "on-http-process-request") \
- FLT_OT_EVENT_DEF( PRST_RDP_COOKIE, REQ, , , 1, "on-tcp-rdp-cookie-request") \
- FLT_OT_EVENT_DEF( STICKING_RULES, REQ, , , 1, "on-process-sticking-rules-request") \
- FLT_OT_EVENT_DEF( CLIENT_SESS_END, REQ, , , 0, "on-client-session-end") \
- FLT_OT_EVENT_DEF(SERVER_UNAVAILABLE, REQ, , , 0, "on-server-unavailable") \
- \
- FLT_OT_EVENT_DEF( SERVER_SESS_START, RES, , SRV_CON, 0, "on-server-session-start") \
- FLT_OT_EVENT_DEF( INSPECT, RES, RES_CNT, RES_CNT, 0, "on-tcp-response") \
- FLT_OT_EVENT_DEF( WAIT_HTTP, RES, , , 1, "on-http-wait-response") \
- FLT_OT_EVENT_DEF( STORE_RULES, RES, , , 1, "on-process-store-rules-response") \
- FLT_OT_EVENT_DEF( HTTP_PROCESS_BE, RES, HRS_HDR, HRS_HDR, 1, "on-http-response") \
- FLT_OT_EVENT_DEF( SERVER_SESS_END, RES, , , 0, "on-server-session-end")
-
-enum FLT_OT_EVENT_enum {
-#define FLT_OT_EVENT_DEF(a,b,c,d,e,f) FLT_OT_EVENT_##b##_##a,
- FLT_OT_EVENT_DEFINES
- FLT_OT_EVENT_MAX
-#undef FLT_OT_EVENT_DEF
-};
-
-enum FLT_OT_EVENT_SAMPLE_enum {
- FLT_OT_EVENT_SAMPLE_TAG = 0,
- FLT_OT_EVENT_SAMPLE_LOG,
- FLT_OT_EVENT_SAMPLE_BAGGAGE,
-};
-
-struct flt_ot_event_data {
- uint an_bit; /* Used channel analyser. */
- uint smp_opt_dir; /* Fetch direction (request/response). */
- uint smp_val_fe; /* Valid FE fetch location. */
- uint smp_val_be; /* Valid BE fetch location. */
- bool flag_http_inject; /* Span context injection allowed. */
- const char *name; /* Filter event name. */
-};
-
-struct flt_ot_conf_scope;
-
-
-extern const struct flt_ot_event_data flt_ot_event_data[FLT_OT_EVENT_MAX];
-
-
-int flt_ot_scope_run(struct stream *s, struct filter *f, struct channel *chn, struct flt_ot_conf_scope *conf_scope, const struct timespec *ts, uint dir, char **err);
-int flt_ot_event_run(struct stream *s, struct filter *f, struct channel *chn, int event, char **err);
-
-#endif /* _OPENTRACING_EVENT_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_FILTER_H_
-#define _OPENTRACING_FILTER_H_
-
-#define FLT_OT_FMT_NAME "'" FLT_OT_OPT_NAME "' : "
-#define FLT_OT_FMT_TYPE "'filter' : "
-#define FLT_OT_VAR_UUID "sess", "ot", "uuid"
-#define FLT_OT_ALERT(f, ...) ha_alert(FLT_OT_FMT_TYPE FLT_OT_FMT_NAME f "\n", ##__VA_ARGS__)
-
-#define FLT_OT_CONDITION_IF "if"
-#define FLT_OT_CONDITION_UNLESS "unless"
-
-enum FLT_OT_RET_enum {
- FLT_OT_RET_ERROR = -1,
- FLT_OT_RET_WAIT = 0,
- FLT_OT_RET_IGNORE = 0,
- FLT_OT_RET_OK = 1,
-};
-
-#define FLT_OT_DBG_LIST(d,m,p,t,v,f) \
- do { \
- if (LIST_ISEMPTY(&((d)->m##s))) { \
- FLT_OT_DBG(3, p "- no " #m "s " t); \
- } else { \
- const struct flt_ot_conf_##m *v; \
- \
- FLT_OT_DBG(3, p "- " t " " #m "s: %s", \
- flt_ot_list_debug(&((d)->m##s))); \
- list_for_each_entry(v, &((d)->m##s), list) \
- do { f; } while (0); \
- } \
- } while (0)
-
-
-extern const char *ot_flt_id;
-extern struct flt_ops flt_ot_ops;
-
-
-bool flt_ot_is_disabled(const struct filter *f FLT_OT_DBG_ARGS(, int event));
-
-#endif /* _OPENTRACING_FILTER_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_GROUP_H_
-#define _OPENTRACING_GROUP_H_
-
-#define FLT_OT_ACTION_GROUP "ot-group"
-
-enum FLT_OT_ARG_enum {
- FLT_OT_ARG_FILTER_ID = 0,
- FLT_OT_ARG_GROUP_ID,
-
- FLT_OT_ARG_FLT_CONF = 0,
- FLT_OT_ARG_CONF,
- FLT_OT_ARG_GROUP,
-};
-
-/*
- * A description of the macro arguments can be found in the structure
- * flt_ot_group_data definition
- */
-#define FLT_OT_GROUP_DEFINES \
- FLT_OT_GROUP_DEF(ACT_F_TCP_REQ_CON, SMP_VAL_FE_CON_ACC, SMP_OPT_DIR_REQ) \
- FLT_OT_GROUP_DEF(ACT_F_TCP_REQ_SES, SMP_VAL_FE_SES_ACC, SMP_OPT_DIR_REQ) \
- FLT_OT_GROUP_DEF(ACT_F_TCP_REQ_CNT, SMP_VAL_FE_REQ_CNT, SMP_OPT_DIR_REQ) \
- FLT_OT_GROUP_DEF(ACT_F_TCP_RES_CNT, SMP_VAL_BE_RES_CNT, SMP_OPT_DIR_RES) \
- FLT_OT_GROUP_DEF(ACT_F_HTTP_REQ, SMP_VAL_FE_HRQ_HDR, SMP_OPT_DIR_REQ) \
- FLT_OT_GROUP_DEF(ACT_F_HTTP_RES, SMP_VAL_BE_HRS_HDR, SMP_OPT_DIR_RES)
-
-struct flt_ot_group_data {
- enum act_from act_from; /* ACT_F_* */
- uint smp_val; /* Valid FE/BE fetch location. */
- uint smp_opt_dir; /* Fetch direction (request/response). */
-};
-
-#endif /* _OPENTRACING_GROUP_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_HTTP_H_
-#define _OPENTRACING_HTTP_H_
-
-#ifndef DEBUG_OT
-# define flt_ot_http_headers_dump(...) while (0)
-#else
-void flt_ot_http_headers_dump(const struct channel *chn);
-#endif
-struct otc_text_map *flt_ot_http_headers_get(struct channel *chn, const char *prefix, size_t len, char **err);
-int flt_ot_http_header_set(struct channel *chn, const char *prefix, const char *name, const char *value, char **err);
-int flt_ot_http_headers_remove(struct channel *chn, const char *prefix, char **err);
-
-#endif /* _OPENTRACING_HTTP_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_INCLUDE_H_
-#define _OPENTRACING_INCLUDE_H_
-
-#include <errno.h>
-#include <stdbool.h>
-
-#include <haproxy/api.h>
-#include <haproxy/cfgparse.h>
-#include <haproxy/acl.h>
-#include <haproxy/cli.h>
-#include <haproxy/clock.h>
-#include <haproxy/filters.h>
-#include <haproxy/http_htx.h>
-#include <haproxy/http_rules.h>
-#include <haproxy/log.h>
-#include <haproxy/proxy.h>
-#include <haproxy/sample.h>
-#include <haproxy/tcp_rules.h>
-#include <haproxy/tools.h>
-#include <haproxy/vars.h>
-
-#include "config.h"
-#include "debug.h"
-#include "define.h"
-#include "cli.h"
-#include "event.h"
-#include "conf.h"
-#include "filter.h"
-#include "group.h"
-#include "http.h"
-#include "opentracing.h"
-#include "parser.h"
-#include "pool.h"
-#include "scope.h"
-#include "util.h"
-#include "vars.h"
-
-#endif /* _OPENTRACING_INCLUDE_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_OT_H_
-#define _OPENTRACING_OT_H_
-
-#include <opentracing-c-wrapper/include.h>
-
-
-#define FLT_OT_VSET(p,t,v) \
- do { (p)->type = otc_value_##t; (p)->value.t##_value = (v); } while (0)
-
-#define FLT_OT_DBG_TEXT_MAP(a) \
- FLT_OT_DBG(3, "%p:{ %p %p %zu/%zu %hhu }", \
- (a), (a)->key, (a)->value, (a)->count, (a)->size, (a)->is_dynamic)
-
-#define FLT_OT_DBG_TEXT_CARRIER(a,f) \
- FLT_OT_DBG(3, "%p:{ { %p %p %zu/%zu %hhu } %p }", \
- (a), (a)->text_map.key, (a)->text_map.value, (a)->text_map.count, \
- (a)->text_map.size, (a)->text_map.is_dynamic, (a)->f)
-
-#define FLT_OT_DBG_CUSTOM_CARRIER(a,f) \
- FLT_OT_DBG(3, "%p:{ { %p %zu %hhu } %p }", \
- (a), (a)->binary_data.data, (a)->binary_data.size, \
- (a)->binary_data.is_dynamic, (a)->f)
-
-#define FLT_OT_DBG_SPAN_CONTEXT(a) \
- FLT_OT_DBG(3, "%p:{ %" PRId64 " %p %p }", (a), (a)->idx, (a)->span, (a)->destroy)
-
-
-#ifndef DEBUG_OT
-# define ot_debug() while (0)
-# define ot_text_map_show(...) while (0)
-#else
-void ot_text_map_show(const struct otc_text_map *text_map);
-void ot_debug(void);
-#endif
-int ot_init(struct otc_tracer **tracer, const char *plugin, char **err);
-int ot_start(struct otc_tracer *tracer, const char *cfgbuf, char **err);
-struct otc_span *ot_span_init(struct otc_tracer *tracer, const char *operation_name, const struct timespec *ts_steady, const struct timespec *ts_system, int ref_type, int ref_ctx_idx, const struct otc_span *ref_span, const struct otc_tag *tags, int num_tags, char **err);
-int ot_span_tag(struct otc_span *span, const struct otc_tag *tags, int num_tags);
-int ot_span_log(struct otc_span *span, const struct otc_log_field *log_fields, int num_fields);
-int ot_span_set_baggage(struct otc_span *span, const struct otc_text_map *baggage);
-struct otc_span_context *ot_inject_http_headers(struct otc_tracer *tracer, const struct otc_span *span, struct otc_http_headers_writer *carrier, char **err);
-struct otc_span_context *ot_extract_http_headers(struct otc_tracer *tracer, struct otc_http_headers_reader *carrier, const struct otc_text_map *text_map, char **err);
-void ot_span_finish(struct otc_span **span, const struct timespec *ts_finish, const struct timespec *log_ts, const char *log_key, const char *log_value, ...);
-void ot_close(struct otc_tracer **tracer);
-
-/* Unused code. */
-struct otc_span *ot_span_init_va(struct otc_tracer *tracer, const char *operation_name, const struct timespec *ts_steady, const struct timespec *ts_system, int ref_type, int ref_ctx_idx, const struct otc_span *ref_span, char **err, const char *tag_key, const char *tag_value, ...);
-int ot_span_tag_va(struct otc_span *span, const char *key, int type, ...);
-int ot_span_log_va(struct otc_span *span, const char *key, const char *value, ...);
-int ot_span_log_fmt(struct otc_span *span, const char *key, const char *format, ...) __attribute__ ((format(printf, 3, 4)));
-int ot_span_set_baggage_va(struct otc_span *span, const char *key, const char *value, ...);
-struct otc_text_map *ot_span_baggage_va(const struct otc_span *span, const char *key, ...);
-struct otc_span_context *ot_inject_text_map(struct otc_tracer *tracer, const struct otc_span *span, struct otc_text_map_writer *carrier);
-struct otc_span_context *ot_inject_binary(struct otc_tracer *tracer, const struct otc_span *span, struct otc_custom_carrier_writer *carrier);
-struct otc_span_context *ot_extract_text_map(struct otc_tracer *tracer, struct otc_text_map_reader *carrier, const struct otc_text_map *text_map);
-struct otc_span_context *ot_extract_binary(struct otc_tracer *tracer, struct otc_custom_carrier_reader *carrier, const struct otc_binary_data *binary_data);
-
-#endif /* _OPENTRACING_OT_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_PARSER_H_
-#define _OPENTRACING_PARSER_H_
-
-#define FLT_OT_SCOPE "OT"
-
-/*
- * filter FLT_OT_OPT_NAME FLT_OT_OPT_FILTER_ID <FLT_OT_OPT_FILTER_ID_DEFAULT> FLT_OT_OPT_CONFIG <file>
- */
-#define FLT_OT_OPT_NAME "opentracing"
-#define FLT_OT_OPT_FILTER_ID "id"
-#define FLT_OT_OPT_FILTER_ID_DEFAULT "ot-filter"
-#define FLT_OT_OPT_CONFIG "config"
-
-#define FLT_OT_PARSE_SECTION_TRACER_ID "ot-tracer"
-#define FLT_OT_PARSE_SECTION_GROUP_ID "ot-group"
-#define FLT_OT_PARSE_SECTION_SCOPE_ID "ot-scope"
-
-#define FLT_OT_PARSE_SPAN_ROOT "root"
-#define FLT_OT_PARSE_SPAN_REF_CHILD "child-of"
-#define FLT_OT_PARSE_SPAN_REF_FOLLOWS "follows-from"
-#define FLT_OT_PARSE_CTX_AUTONAME "-"
-#define FLT_OT_PARSE_CTX_IGNORE_NAME '-'
-#define FLT_OT_PARSE_CTX_USE_HEADERS "use-headers"
-#define FLT_OT_PARSE_CTX_USE_VARS "use-vars"
-#define FLT_OT_PARSE_OPTION_HARDERR "hard-errors"
-#define FLT_OT_PARSE_OPTION_DISABLED "disabled"
-#define FLT_OT_PARSE_OPTION_NOLOGNORM "dontlog-normal"
-
-/*
- * A description of the macro arguments can be found in the structure
- * flt_ot_parse_data definition
- */
-#define FLT_OT_PARSE_TRACER_DEFINES \
- FLT_OT_PARSE_TRACER_DEF( ID, 0, CHAR, 2, 2, "ot-tracer", " <name>") \
- FLT_OT_PARSE_TRACER_DEF( ACL, 0, CHAR, 3, 0, "acl", " <name> <criterion> [flags] [operator] <value> ...") \
- FLT_OT_PARSE_TRACER_DEF( LOG, 0, CHAR, 2, 0, "log", " { global | <addr> [len <len>] [format <fmt>] <facility> [<level> [<minlevel>]] }") \
- FLT_OT_PARSE_TRACER_DEF( CONFIG, 0, NONE, 2, 2, "config", " <file>") \
- FLT_OT_PARSE_TRACER_DEF( PLUGIN, 0, NONE, 2, 2, "plugin", " <file>") \
- FLT_OT_PARSE_TRACER_DEF( GROUPS, 0, NONE, 2, 0, "groups", " <name> ...") \
- FLT_OT_PARSE_TRACER_DEF( SCOPES, 0, NONE, 2, 0, "scopes", " <name> ...") \
- FLT_OT_PARSE_TRACER_DEF( RATE_LIMIT, 0, NONE, 2, 2, "rate-limit", " <value>") \
- FLT_OT_PARSE_TRACER_DEF( OPTION, 0, NONE, 2, 2, "option", " { disabled | dontlog-normal | hard-errors }") \
- FLT_OT_PARSE_TRACER_DEF(DEBUG_LEVEL, 0, NONE, 2, 2, "debug-level", " <value>")
-
-#define FLT_OT_PARSE_GROUP_DEFINES \
- FLT_OT_PARSE_GROUP_DEF( ID, 0, CHAR, 2, 2, "ot-group", " <name>") \
- FLT_OT_PARSE_GROUP_DEF(SCOPES, 0, NONE, 2, 0, "scopes", " <name> ...")
-
-#ifdef USE_OT_VARS
-# define FLT_OT_PARSE_SCOPE_INJECT_HELP " <name-prefix> [use-vars] [use-headers]"
-# define FLT_OT_PARSE_SCOPE_EXTRACT_HELP " <name-prefix> [use-vars | use-headers]"
-#else
-# define FLT_OT_PARSE_SCOPE_INJECT_HELP " <name-prefix> [use-headers]"
-# define FLT_OT_PARSE_SCOPE_EXTRACT_HELP " <name-prefix> [use-headers]"
-#endif
-
-/*
- * In case the possibility of working with OpenTracing context via HAProxyu
- * variables is not used, args_max member of the structure flt_ot_parse_data
- * should be reduced for 'inject' keyword. However, this is not critical
- * because in this case the 'use-vars' argument cannot be entered anyway,
- * so I will not complicate it here with additional definitions.
- */
-#define FLT_OT_PARSE_SCOPE_DEFINES \
- FLT_OT_PARSE_SCOPE_DEF( ID, 0, CHAR, 2, 2, "ot-scope", " <name>") \
- FLT_OT_PARSE_SCOPE_DEF( SPAN, 0, NONE, 2, 5, "span", " <name> [<reference>] [root]") \
- FLT_OT_PARSE_SCOPE_DEF( TAG, 1, NONE, 3, 0, "tag", " <name> <sample> ...") \
- FLT_OT_PARSE_SCOPE_DEF( LOG, 1, NONE, 3, 0, "log", " <name> <sample> ...") \
- FLT_OT_PARSE_SCOPE_DEF(BAGGAGE, 1, VAR, 3, 0, "baggage", " <name> <sample> ...") \
- FLT_OT_PARSE_SCOPE_DEF( INJECT, 1, CTX, 2, 4, "inject", FLT_OT_PARSE_SCOPE_INJECT_HELP) \
- FLT_OT_PARSE_SCOPE_DEF(EXTRACT, 0, CTX, 2, 3, "extract", FLT_OT_PARSE_SCOPE_EXTRACT_HELP) \
- FLT_OT_PARSE_SCOPE_DEF( FINISH, 0, NONE, 2, 0, "finish", " <name> ...") \
- FLT_OT_PARSE_SCOPE_DEF( ACL, 0, CHAR, 3, 0, "acl", " <name> <criterion> [flags] [operator] <value> ...") \
- FLT_OT_PARSE_SCOPE_DEF( EVENT, 0, NONE, 2, 0, "event", " <name> [{ if | unless } <condition>]")
-
-enum FLT_OT_PARSE_INVCHAR_enum {
- FLT_OT_PARSE_INVALID_NONE,
- FLT_OT_PARSE_INVALID_CHAR,
- FLT_OT_PARSE_INVALID_DOM,
- FLT_OT_PARSE_INVALID_CTX,
- FLT_OT_PARSE_INVALID_VAR,
-};
-
-enum FLT_OT_PARSE_TRACER_enum {
-#define FLT_OT_PARSE_TRACER_DEF(a,b,c,d,e,f,g) FLT_OT_PARSE_TRACER_##a,
- FLT_OT_PARSE_TRACER_DEFINES
-#undef FLT_OT_PARSE_TRACER_DEF
-};
-
-enum FLT_OT_PARSE_GROUP_enum {
-#define FLT_OT_PARSE_GROUP_DEF(a,b,c,d,e,f,g) FLT_OT_PARSE_GROUP_##a,
- FLT_OT_PARSE_GROUP_DEFINES
-#undef FLT_OT_PARSE_GROUP_DEF
-};
-
-enum FLT_OT_PARSE_SCOPE_enum {
-#define FLT_OT_PARSE_SCOPE_DEF(a,b,c,d,e,f,g) FLT_OT_PARSE_SCOPE_##a,
- FLT_OT_PARSE_SCOPE_DEFINES
-#undef FLT_OT_PARSE_SCOPE_DEF
-};
-
-enum FLT_OT_CTX_USE_enum {
- FLT_OT_CTX_USE_VARS = 1 << 0,
- FLT_OT_CTX_USE_HEADERS = 1 << 1,
-};
-
-struct flt_ot_parse_data {
- int keyword; /* Keyword index. */
- bool flag_check_id; /* Whether the group ID must be defined for the keyword. */
- int check_name; /* Checking allowed characters in the name. */
- int args_min; /* The minimum number of arguments required. */
- int args_max; /* The maximum number of arguments allowed. */
- const char *name; /* Keyword name. */
- const char *usage; /* Usage text to be printed in case of an error. */
-};
-
-#define FLT_OT_PARSE_WARNING(f, ...) \
- ha_warning("parsing [%s:%d] : " FLT_OT_FMT_TYPE FLT_OT_FMT_NAME "'" f "'\n", ##__VA_ARGS__);
-#define FLT_OT_PARSE_ALERT(f, ...) \
- do { \
- ha_alert("parsing [%s:%d] : " FLT_OT_FMT_TYPE FLT_OT_FMT_NAME "'" f "'\n", ##__VA_ARGS__); \
- \
- retval |= ERR_ABORT | ERR_ALERT; \
- } while (0)
-#define FLT_OT_POST_PARSE_ALERT(f, ...) \
- FLT_OT_PARSE_ALERT(f, flt_ot_current_config->cfg_file, ##__VA_ARGS__)
-
-#define FLT_OT_PARSE_ERR(e,f, ...) \
- do { \
- if (*(e) == NULL) \
- (void)memprintf((e), f, ##__VA_ARGS__); \
- \
- retval |= ERR_ABORT | ERR_ALERT; \
- } while (0)
-#define FLT_OT_PARSE_IFERR_ALERT() \
- do { \
- if (err == NULL) \
- break; \
- \
- FLT_OT_PARSE_ALERT("%s", file, linenum, err); \
- FLT_OT_ERR_FREE(err); \
- } while (0)
-
-#endif /* _OPENTRACING_PARSER_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_POOL_H_
-#define _OPENTRACING_POOL_H_
-
-void *flt_ot_pool_alloc(struct pool_head *pool, size_t size, bool flag_clear, char **err);
-void *flt_ot_pool_strndup(struct pool_head *pool, const char *s, size_t size, char **err);
-void flt_ot_pool_free(struct pool_head *pool, void **ptr);
-
-struct buffer *flt_ot_trash_alloc(bool flag_clear, char **err);
-void flt_ot_trash_free(struct buffer **ptr);
-
-#endif /* _OPENTRACING_POOL_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_SCOPE_H_
-#define _OPENTRACING_SCOPE_H_
-
-#define FLT_OT_SCOPE_SPAN_FINISH_REQ "*req*"
-#define FLT_OT_SCOPE_SPAN_FINISH_RES "*res*"
-#define FLT_OT_SCOPE_SPAN_FINISH_ALL "*"
-
-#define FLT_OT_RT_CTX(a) ((struct flt_ot_runtime_context *)(a))
-
-#define FLT_OT_DBG_SCOPE_SPAN(f,a) \
- FLT_OT_DBG(3, "%s%p:{ '%s' %zu %u %hhu %p %d %p %p }", \
- (f), (a), FLT_OT_STR_HDR_ARGS(a, id), (a)->smp_opt_dir, \
- (a)->flag_finish, (a)->span, (a)->ref_type, (a)->ref_span, (a)->ref_ctx)
-
-#define FLT_OT_DBG_SCOPE_CONTEXT(f,a) \
- FLT_OT_DBG(3, "%s%p:{ '%s' %zu %u %hhu %p }", \
- (f), (a), FLT_OT_STR_HDR_ARGS(a, id), (a)->smp_opt_dir, \
- (a)->flag_finish, (a)->context)
-
-#define FLT_OT_DBG_SCOPE_DATA(f,a) \
- FLT_OT_DBG(3, "%s%p:{ %p %d %p %p %d }", \
- (f), (a), (a)->tags, (a)->num_tags, (a)->baggage, (a)->log_fields, (a)->num_log_fields)
-
-#define FLT_OT_DBG_RUNTIME_CONTEXT(f,a) \
- FLT_OT_DBG(3, "%s%p:{ %p %p '%s' %hhu %hhu 0x%02hhx 0x%08x %s %s }", \
- (f), (a), (a)->stream, (a)->filter, (a)->uuid, (a)->flag_harderr, \
- (a)->flag_disabled, (a)->logging, (a)->analyzers, flt_ot_list_debug(&((a)->spans)), \
- flt_ot_list_debug(&((a)->contexts)))
-
-#define FLT_OT_CONST_STR_HDR(a) \
- struct { \
- const char *a; \
- size_t a##_len; \
- }
-
-
-struct flt_ot_scope_data {
- struct otc_tag tags[FLT_OT_MAXTAGS]; /* Defined tags. */
- int num_tags; /* The number of tags used. */
- struct otc_text_map *baggage; /* Defined baggage. */
- struct otc_log_field log_fields[OTC_MAXLOGFIELDS]; /* Defined logs. */
- int num_log_fields; /* The number of log fields used. */
-};
-
-/* flt_ot_runtime_context->spans */
-struct flt_ot_scope_span {
- FLT_OT_CONST_STR_HDR(id); /* The span operation name/len. */
- uint smp_opt_dir; /* SMP_OPT_DIR_RE(Q|S) */
- bool flag_finish; /* Whether the span is marked for completion. */
- struct otc_span *span; /* The current span. */
- otc_span_reference_type_t ref_type; /* Span reference type. */
- struct otc_span *ref_span; /* Span to which the current span refers. */
- struct otc_span_context *ref_ctx; /* Span context to which the current span refers. */
- struct list list; /* Used to chain this structure. */
-};
-
-/* flt_ot_runtime_context->contexts */
-struct flt_ot_scope_context {
- FLT_OT_CONST_STR_HDR(id); /* The span context name/len. */
- uint smp_opt_dir; /* SMP_OPT_DIR_RE(Q|S) */
- bool flag_finish; /* Whether the span context is marked for completion. */
- struct otc_span_context *context; /* The current span context. */
- struct list list; /* Used to chain this structure. */
-};
-
-/* The runtime filter context attached to a stream. */
-struct flt_ot_runtime_context {
- struct stream *stream; /* The stream to which the filter is attached. */
- struct filter *filter; /* The OpenTracing filter. */
- char uuid[40]; /* Randomly generated UUID. */
- bool flag_harderr; /* [0 1] */
- bool flag_disabled; /* [0 1] */
- uint8_t logging; /* [0 1 3] */
- uint analyzers; /* Executed channel analyzers. */
- struct list spans; /* The scope spans. */
- struct list contexts; /* The scope contexts. */
-};
-
-
-#ifndef DEBUG_OT
-# define flt_ot_pools_info() while (0)
-#else
-void flt_ot_pools_info(void);
-#endif
-struct flt_ot_runtime_context *flt_ot_runtime_context_init(struct stream *s, struct filter *f, char **err);
-void flt_ot_runtime_context_free(struct filter *f);
-
-struct flt_ot_scope_span *flt_ot_scope_span_init(struct flt_ot_runtime_context *rt_ctx, const char *id, size_t id_len, otc_span_reference_type_t ref_type, const char *ref_id, size_t ref_id_len, uint dir, char **err);
-void flt_ot_scope_span_free(struct flt_ot_scope_span **ptr);
-struct flt_ot_scope_context *flt_ot_scope_context_init(struct flt_ot_runtime_context *rt_ctx, struct otc_tracer *tracer, const char *id, size_t id_len, const struct otc_text_map *text_map, uint dir, char **err);
-void flt_ot_scope_context_free(struct flt_ot_scope_context **ptr);
-void flt_ot_scope_data_free(struct flt_ot_scope_data *ptr);
-
-int flt_ot_scope_finish_mark(const struct flt_ot_runtime_context *rt_ctx, const char *id, size_t id_len);
-void flt_ot_scope_finish_marked(const struct flt_ot_runtime_context *rt_ctx, const struct timespec *ts_finish);
-void flt_ot_scope_free_unused(struct flt_ot_runtime_context *rt_ctx, struct channel *chn);
-
-#endif /* _OPENTRACING_SCOPE_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_UTIL_H_
-#define _OPENTRACING_UTIL_H_
-
-#define HTTP_METH_STR_OPTIONS "OPTIONS"
-#define HTTP_METH_STR_GET "GET"
-#define HTTP_METH_STR_HEAD "HEAD"
-#define HTTP_METH_STR_POST "POST"
-#define HTTP_METH_STR_PUT "PUT"
-#define HTTP_METH_STR_DELETE "DELETE"
-#define HTTP_METH_STR_TRACE "TRACE"
-#define HTTP_METH_STR_CONNECT "CONNECT"
-
-/* Defined in include/haproxy/channel-t.h. */
-#define FLT_OT_AN_DEFINES \
- FLT_OT_AN_DEF(AN_REQ_INSPECT_FE) \
- FLT_OT_AN_DEF(AN_REQ_WAIT_HTTP) \
- FLT_OT_AN_DEF(AN_REQ_HTTP_BODY) \
- FLT_OT_AN_DEF(AN_REQ_HTTP_PROCESS_FE) \
- FLT_OT_AN_DEF(AN_REQ_SWITCHING_RULES) \
- FLT_OT_AN_DEF(AN_REQ_INSPECT_BE) \
- FLT_OT_AN_DEF(AN_REQ_HTTP_PROCESS_BE) \
- FLT_OT_AN_DEF(AN_REQ_HTTP_TARPIT) \
- FLT_OT_AN_DEF(AN_REQ_SRV_RULES) \
- FLT_OT_AN_DEF(AN_REQ_HTTP_INNER) \
- FLT_OT_AN_DEF(AN_REQ_PRST_RDP_COOKIE) \
- FLT_OT_AN_DEF(AN_REQ_STICKING_RULES) \
- FLT_OT_AN_DEF(AN_REQ_HTTP_XFER_BODY) \
- FLT_OT_AN_DEF(AN_REQ_WAIT_CLI) \
- FLT_OT_AN_DEF(AN_RES_INSPECT) \
- FLT_OT_AN_DEF(AN_RES_WAIT_HTTP) \
- FLT_OT_AN_DEF(AN_RES_STORE_RULES) \
- FLT_OT_AN_DEF(AN_RES_HTTP_PROCESS_BE) \
- FLT_OT_AN_DEF(AN_RES_HTTP_PROCESS_FE) \
- FLT_OT_AN_DEF(AN_RES_HTTP_XFER_BODY) \
- FLT_OT_AN_DEF(AN_RES_WAIT_CLI)
-
-#define FLT_OT_PROXIES_LIST_START() \
- do { \
- struct flt_conf *fconf; \
- struct proxy *px; \
- \
- for (px = proxies_list; px != NULL; px = px->next) \
- list_for_each_entry(fconf, &(px->filter_configs), list) \
- if (fconf->id == ot_flt_id) { \
- struct flt_ot_conf *conf = fconf->conf;
-#define FLT_OT_PROXIES_LIST_END() \
- } \
- } while (0)
-
-#ifdef DEBUG_OT
-# define FLT_OT_ARGS_DUMP() do { if (flt_ot_debug.level & (1 << 2)) flt_ot_args_dump(args); } while (0)
-#else
-# define FLT_OT_ARGS_DUMP() while (0)
-#endif
-
-
-#ifndef DEBUG_OT
-# define flt_ot_filters_dump() while (0)
-#else
-void flt_ot_args_dump(char **args);
-void flt_ot_filters_dump(void);
-const char *flt_ot_chn_label(const struct channel *chn);
-const char *flt_ot_pr_mode(const struct stream *s);
-const char *flt_ot_stream_pos(const struct stream *s);
-const char *flt_ot_type(const struct filter *f);
-const char *flt_ot_analyzer(uint an_bit);
-const char *flt_ot_str_hex(const void *data, size_t size);
-const char *flt_ot_str_ctrl(const void *data, size_t size);
-const char *flt_ot_list_debug(const struct list *head);
-#endif
-
-ssize_t flt_ot_chunk_add(struct buffer *chk, const void *src, size_t n, char **err);
-int flt_ot_args_count(char **args);
-void flt_ot_args_to_str(char **args, int idx, char **str);
-double flt_ot_strtod(const char *nptr, double limit_min, double limit_max, char **err);
-int64_t flt_ot_strtoll(const char *nptr, int64_t limit_min, int64_t limit_max, char **err);
-int flt_ot_sample_to_str(const struct sample_data *data, char *value, size_t size, char **err);
-int flt_ot_sample_to_value(const char *key, const struct sample_data *data, struct otc_value *value, char **err);
-int flt_ot_sample_add(struct stream *s, uint dir, struct flt_ot_conf_sample *sample, struct flt_ot_scope_data *data, int type, char **err);
-
-#endif /* _OPENTRACING_UTIL_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#ifndef _OPENTRACING_VARS_H_
-#define _OPENTRACING_VARS_H_
-
-#define FLT_OT_VARS_SCOPE "txn"
-#define FLT_OT_VAR_CTX_SIZE int8_t
-#define FLT_OT_VAR_CHAR_DASH 'D'
-#define FLT_OT_VAR_CHAR_SPACE 'S'
-
-struct flt_ot_ctx {
- char value[BUFSIZ];
- int value_len;
-};
-
-typedef int (*flt_ot_ctx_loop_cb)(struct sample *, size_t, const char *, const char *, const char *, FLT_OT_VAR_CTX_SIZE, char **, void *);
-
-
-#ifndef DEBUG_OT
-# define flt_ot_vars_dump(...) while (0)
-#else
-void flt_ot_vars_dump(struct stream *s);
-#endif
-int flt_ot_var_register(const char *scope, const char *prefix, const char *name, char **err);
-int flt_ot_var_set(struct stream *s, const char *scope, const char *prefix, const char *name, const char *value, uint opt, char **err);
-int flt_ot_vars_unset(struct stream *s, const char *scope, const char *prefix, uint opt, char **err);
-struct otc_text_map *flt_ot_vars_get(struct stream *s, const char *scope, const char *prefix, uint opt, char **err);
-
-#endif /* _OPENTRACING_VARS_H_ */
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-/***
- * NAME
- * flt_ot_cli_set_msg -
- *
- * ARGUMENTS
- * appctx -
- * err -
- * msg -
- * cli_state -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void cmn_cli_set_msg(struct appctx *appctx, char *err, char *msg, int cli_state)
-{
- struct cli_print_ctx *ctx = applet_reserve_svcctx(appctx, sizeof(*ctx));
-
- FLT_OT_FUNC("%p, %p, %p, %d", appctx, err, msg, cli_state);
-
- if ((appctx == NULL) || ((err == NULL) && (msg == NULL)))
- FLT_OT_RETURN();
-
- ctx->err = (err == NULL) ? msg : err;
- appctx->st0 = (ctx->err == NULL) ? CLI_ST_PROMPT : cli_state;
-
- FLT_OT_DBG(1, "err(%d): \"%s\"", appctx->st0, ctx->err);
-
- FLT_OT_RETURN();
-}
-
-
-#ifdef DEBUG_OT
-
-/***
- * NAME
- * flt_ot_cli_parse_debug -
- *
- * ARGUMENTS
- * args -
- * payload -
- * appctx -
- * private -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_cli_parse_debug(char **args, char *payload, struct appctx *appctx, void *private)
-{
- char *err = NULL, *msg = NULL;
- uint8_t value;
- int retval = 0;
-
- FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private);
-
- FLT_OT_ARGS_DUMP();
-
- if (FLT_OT_ARG_ISVALID(2)) {
- value = flt_ot_strtoll(args[2], 0, 255, &err);
- if (err == NULL) {
- _HA_ATOMIC_STORE(&(flt_ot_debug.level), value);
-
- (void)memprintf(&msg, FLT_OT_CLI_CMD " : debug level set to %hhu", value);
- } else {
- retval = 1;
- }
- } else {
- value = _HA_ATOMIC_LOAD(&(flt_ot_debug.level));
-
- (void)memprintf(&msg, FLT_OT_CLI_CMD " : current debug level is %hhu", value);
- }
-
- cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_DYNERR);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-#endif /* DEBUG_OT */
-
-
-/***
- * NAME
- * flt_ot_cli_parse_disabled -
- *
- * ARGUMENTS
- * args -
- * payload -
- * appctx -
- * private -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_cli_parse_disabled(char **args, char *payload, struct appctx *appctx, void *private)
-{
- char *msg = NULL;
- bool value = (uintptr_t)private;
- int retval = 0;
-
- FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private);
-
- FLT_OT_ARGS_DUMP();
-
- FLT_OT_PROXIES_LIST_START() {
- _HA_ATOMIC_STORE(&(conf->tracer->flag_disabled), value);
-
- (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : filter %sabled", FLT_OT_CLI_MSG_CAT(msg), value ? "dis" : "en");
- } FLT_OT_PROXIES_LIST_END();
-
- cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_DYNERR);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_cli_parse_option -
- *
- * ARGUMENTS
- * args -
- * payload -
- * appctx -
- * private -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_cli_parse_option(char **args, char *payload, struct appctx *appctx, void *private)
-{
- char *msg = NULL;
- bool value = (uintptr_t)private;
- int retval = 0;
-
- FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private);
-
- FLT_OT_ARGS_DUMP();
-
- FLT_OT_PROXIES_LIST_START() {
- _HA_ATOMIC_STORE(&(conf->tracer->flag_harderr), value);
-
- (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : filter set %s-errors", FLT_OT_CLI_MSG_CAT(msg), value ? "hard" : "soft");
- } FLT_OT_PROXIES_LIST_END();
-
- cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_DYNERR);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_cli_parse_logging -
- *
- * ARGUMENTS
- * args -
- * payload -
- * appctx -
- * private -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_cli_parse_logging(char **args, char *payload, struct appctx *appctx, void *private)
-{
- char *err = NULL, *msg = NULL;
- uint8_t value;
- int retval = 0;
-
- FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private);
-
- FLT_OT_ARGS_DUMP();
-
- if (FLT_OT_ARG_ISVALID(2)) {
- if (strcasecmp(args[2], FLT_OT_CLI_LOGGING_OFF) == 0) {
- value = FLT_OT_LOGGING_OFF;
- }
- else if (strcasecmp(args[2], FLT_OT_CLI_LOGGING_ON) == 0) {
- value = FLT_OT_LOGGING_ON;
- }
- else if (strcasecmp(args[2], FLT_OT_CLI_LOGGING_NOLOGNORM) == 0) {
- value = FLT_OT_LOGGING_ON | FLT_OT_LOGGING_NOLOGNORM;
- }
- else {
- (void)memprintf(&err, "'%s' : invalid value, use <" FLT_OT_CLI_LOGGING_OFF " | " FLT_OT_CLI_LOGGING_ON " | " FLT_OT_CLI_LOGGING_NOLOGNORM ">", args[2]);
-
- retval = 1;
- }
-
- if (retval == 0) {
- FLT_OT_PROXIES_LIST_START() {
- _HA_ATOMIC_STORE(&(conf->tracer->logging), value);
-
- (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : logging is %s", FLT_OT_CLI_MSG_CAT(msg), FLT_OT_CLI_LOGGING_STATE(value));
- } FLT_OT_PROXIES_LIST_END();
- }
- } else {
- FLT_OT_PROXIES_LIST_START() {
- value = _HA_ATOMIC_LOAD(&(conf->tracer->logging));
-
- (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : logging is currently %s", FLT_OT_CLI_MSG_CAT(msg), FLT_OT_CLI_LOGGING_STATE(value));
- } FLT_OT_PROXIES_LIST_END();
- }
-
- cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_DYNERR);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_cli_parse_rate -
- *
- * ARGUMENTS
- * args -
- * payload -
- * appctx -
- * private -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_cli_parse_rate(char **args, char *payload, struct appctx *appctx, void *private)
-{
- char *err = NULL, *msg = NULL;
- uint32_t value;
- int retval = 0;
-
- FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private);
-
- FLT_OT_ARGS_DUMP();
-
- if (FLT_OT_ARG_ISVALID(2)) {
- value = FLT_OT_FLOAT_U32(flt_ot_strtod(args[2], 0.0, FLT_OT_RATE_LIMIT_MAX, &err), FLT_OT_RATE_LIMIT_MAX);
- if (err == NULL) {
- FLT_OT_PROXIES_LIST_START() {
- _HA_ATOMIC_STORE(&(conf->tracer->rate_limit), value);
-
- (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : rate limit set to %.2f", FLT_OT_CLI_MSG_CAT(msg), FLT_OT_U32_FLOAT(value, FLT_OT_RATE_LIMIT_MAX));
- } FLT_OT_PROXIES_LIST_END();
- } else {
- retval = 1;
- }
- } else {
- FLT_OT_PROXIES_LIST_START() {
- value = _HA_ATOMIC_LOAD(&(conf->tracer->rate_limit));
-
- (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : current rate limit is %.2f", FLT_OT_CLI_MSG_CAT(msg), FLT_OT_U32_FLOAT(value, FLT_OT_RATE_LIMIT_MAX));
- } FLT_OT_PROXIES_LIST_END();
- }
-
- cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_DYNERR);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_cli_parse_status -
- *
- * ARGUMENTS
- * args -
- * payload -
- * appctx -
- * private -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_cli_parse_status(char **args, char *payload, struct appctx *appctx, void *private)
-{
- const char *nl = "";
- char *msg = NULL;
- int retval = 0;
-
- FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private);
-
- FLT_OT_ARGS_DUMP();
- flt_ot_filters_dump();
-
- (void)memprintf(&msg, " " FLT_OT_OPT_NAME " filter status\n" FLT_OT_STR_DASH_78);
-#ifdef DEBUG_OT
- (void)memprintf(&msg, "%s\n debug level: 0x%02hhx\n", msg, flt_ot_debug.level);
-#endif
-
- FLT_OT_PROXIES_LIST_START() {
- (void)memprintf(&msg, "%s\n%s filter %s\n", msg, nl, conf->id);
- (void)memprintf(&msg, "%s configuration: %s\n", msg, conf->cfg_file);
- (void)memprintf(&msg, "%s disable count: %" PRIu64 " %" PRIu64 "\n\n", msg, conf->cnt.disabled[0], conf->cnt.disabled[1]);
- (void)memprintf(&msg, "%s tracer %s\n", msg, conf->tracer->id);
- (void)memprintf(&msg, "%s configuration: %s\n", msg, conf->tracer->config);
- (void)memprintf(&msg, "%s plugin: %s\n", msg, conf->tracer->plugin);
- (void)memprintf(&msg, "%s rate limit: %.2f %%\n", msg, FLT_OT_U32_FLOAT(conf->tracer->rate_limit, FLT_OT_RATE_LIMIT_MAX));
- (void)memprintf(&msg, "%s hard errors: %s\n", msg, FLT_OT_STR_FLAG_YN(conf->tracer->flag_harderr));
- (void)memprintf(&msg, "%s disabled: %s\n", msg, FLT_OT_STR_FLAG_YN(conf->tracer->flag_disabled));
- (void)memprintf(&msg, "%s logging: %s\n", msg, FLT_OT_CLI_LOGGING_STATE(conf->tracer->logging));
- (void)memprintf(&msg, "%s analyzers: %08x", msg, conf->tracer->analyzers);
-
- nl = "\n";
- } FLT_OT_PROXIES_LIST_END();
-
- cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_DYNERR);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-static struct cli_kw_list cli_kws = { { }, {
-#ifdef DEBUG_OT
- { { FLT_OT_CLI_CMD, "debug", NULL }, FLT_OT_CLI_CMD " debug [level] : set the OT filter debug level (default: get current debug level)", flt_ot_cli_parse_debug, NULL, NULL, NULL, 0 },
-#endif
- { { FLT_OT_CLI_CMD, "disable", NULL }, FLT_OT_CLI_CMD " disable : disable the OT filter", flt_ot_cli_parse_disabled, NULL, NULL, (void *)1, 0 },
- { { FLT_OT_CLI_CMD, "enable", NULL }, FLT_OT_CLI_CMD " enable : enable the OT filter", flt_ot_cli_parse_disabled, NULL, NULL, (void *)0, 0 },
- { { FLT_OT_CLI_CMD, "soft-errors", NULL }, FLT_OT_CLI_CMD " soft-errors : turning off hard-errors mode", flt_ot_cli_parse_option, NULL, NULL, (void *)0, 0 },
- { { FLT_OT_CLI_CMD, "hard-errors", NULL }, FLT_OT_CLI_CMD " hard-errors : enabling hard-errors mode", flt_ot_cli_parse_option, NULL, NULL, (void *)1, 0 },
- { { FLT_OT_CLI_CMD, "logging", NULL }, FLT_OT_CLI_CMD " logging [state] : set logging state (default: get current logging state)", flt_ot_cli_parse_logging, NULL, NULL, NULL, 0 },
- { { FLT_OT_CLI_CMD, "rate", NULL }, FLT_OT_CLI_CMD " rate [value] : set the rate limit (default: get current rate value)", flt_ot_cli_parse_rate, NULL, NULL, NULL, 0 },
- { { FLT_OT_CLI_CMD, "status", NULL }, FLT_OT_CLI_CMD " status : show the OT filter status", flt_ot_cli_parse_status, NULL, NULL, NULL, 0 },
- { /* END */ }
-}};
-
-
-/***
- * NAME
- * flt_ot_cli_init -
- *
- * ARGUMENTS
- * This function takes no arguments.
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_cli_init(void)
-{
- FLT_OT_FUNC("");
-
- /* Register CLI keywords. */
- cli_register_kw(&cli_kws);
-
- FLT_OT_RETURN();
-}
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-/***
- * NAME
- * flt_ot_conf_hdr_init -
- *
- * ARGUMENTS
- * size -
- * id -
- * linenum -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static void *flt_ot_conf_hdr_init(size_t size, const char *id, int linenum, struct list *head, char **err)
-{
- struct flt_ot_conf_hdr *retptr = NULL, *ptr;
-
- FLT_OT_FUNC("%zu, \"%s\", %d, %p, %p:%p", size, id, linenum, head, FLT_OT_DPTR_ARGS(err));
-
- if (head != NULL)
- list_for_each_entry(ptr, head, list)
- if (strcmp(ptr->id, id) == 0) {
- FLT_OT_ERR("'%s' : already defined", id);
-
- FLT_OT_RETURN_PTR(retptr);
- }
-
- retptr = FLT_OT_CALLOC(1, size);
- if (retptr != NULL) {
- retptr->id_len = strlen(id);
- if (retptr->id_len >= FLT_OT_ID_MAXLEN)
- FLT_OT_ERR("'%s' : name too long", id);
- else
- retptr->id = FLT_OT_STRDUP(id);
-
- if (retptr->id == NULL)
- FLT_OT_FREE_CLEAR(retptr);
- }
-
- if (retptr != NULL) {
- retptr->cfg_line = linenum;
-
- if (head != NULL)
- LIST_APPEND(head, &(retptr->list));
- } else {
- FLT_OT_ERR("out of memory");
- }
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_conf_ph_init -
- *
- * ARGUMENTS
- * id -
- * linenum -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_conf_ph *flt_ot_conf_ph_init(const char *id, int linenum, struct list *head, char **err)
-{
- struct flt_ot_conf_ph *retptr;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p:%p", id, linenum, head, FLT_OT_DPTR_ARGS(err));
-
- retptr = flt_ot_conf_hdr_init(sizeof(*retptr), id, linenum, head, err);
- if (retptr != NULL)
- FLT_OT_DBG_CONF_PH("- init ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_conf_ph_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_conf_ph_free(struct flt_ot_conf_ph **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_CONF_PH("- free ", *ptr);
-
- FLT_OT_FREE((*ptr)->id);
- FLT_OT_LIST_DEL(&((*ptr)->list));
- FLT_OT_FREE_CLEAR(*ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_conf_sample_expr_init -
- *
- * ARGUMENTS
- * id -
- * linenum -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_conf_sample_expr *flt_ot_conf_sample_expr_init(const char *id, int linenum, struct list *head, char **err)
-{
- struct flt_ot_conf_sample_expr *retptr;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p:%p", id, linenum, head, FLT_OT_DPTR_ARGS(err));
-
- retptr = flt_ot_conf_hdr_init(sizeof(*retptr), id, linenum, head, err);
- if (retptr != NULL)
- FLT_OT_DBG_CONF_SAMPLE_EXPR("- init ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_conf_sample_expr_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_conf_sample_expr_free(struct flt_ot_conf_sample_expr **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_CONF_SAMPLE_EXPR("- free ", *ptr);
-
- FLT_OT_FREE((*ptr)->value);
- release_sample_expr((*ptr)->expr);
- FLT_OT_LIST_DEL(&((*ptr)->list));
- FLT_OT_FREE_CLEAR(*ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_conf_sample_init -
- *
- * ARGUMENTS
- * args -
- * linenum -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_conf_sample *flt_ot_conf_sample_init(char **args, int linenum, struct list *head, char **err)
-{
- struct flt_ot_conf_sample *retptr;
-
- FLT_OT_FUNC("%p, %d, %p, %p:%p", args, linenum, head, FLT_OT_DPTR_ARGS(err));
-
- retptr = flt_ot_conf_hdr_init(sizeof(*retptr), args[1], linenum, head, err);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- flt_ot_args_to_str(args, 2, &(retptr->value));
- if (retptr->value == NULL) {
- FLT_OT_FREE_CLEAR(retptr);
-
- FLT_OT_RETURN_PTR(retptr);
- }
-
- retptr->num_exprs = flt_ot_args_count(args) - 2;
- LIST_INIT(&(retptr->exprs));
-
- FLT_OT_DBG_CONF_SAMPLE("- init ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_conf_sample_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_conf_sample_free(struct flt_ot_conf_sample **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_CONF_SAMPLE("- free ", *ptr);
-
- FLT_OT_FREE((*ptr)->key);
- FLT_OT_FREE((*ptr)->value);
- FLT_OT_LIST_DESTROY(sample_expr, &((*ptr)->exprs));
- FLT_OT_LIST_DEL(&((*ptr)->list));
- FLT_OT_FREE_CLEAR(*ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_conf_str_init -
- *
- * ARGUMENTS
- * id -
- * linenum -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_conf_str *flt_ot_conf_str_init(const char *id, int linenum, struct list *head, char **err)
-{
- struct flt_ot_conf_str *retptr;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p:%p", id, linenum, head, FLT_OT_DPTR_ARGS(err));
-
- retptr = flt_ot_conf_hdr_init(sizeof(*retptr), id, linenum, head, err);
- if (retptr != NULL)
- FLT_OT_DBG_CONF_STR("- init ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_conf_str_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_conf_str_free(struct flt_ot_conf_str **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_CONF_STR("- free ", *ptr);
-
- FLT_OT_FREE((*ptr)->str);
- FLT_OT_LIST_DEL(&((*ptr)->list));
- FLT_OT_FREE_CLEAR(*ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_conf_context_init -
- *
- * ARGUMENTS
- * id -
- * linenum -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_conf_context *flt_ot_conf_context_init(const char *id, int linenum, struct list *head, char **err)
-{
- struct flt_ot_conf_context *retptr;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p:%p", id, linenum, head, FLT_OT_DPTR_ARGS(err));
-
- retptr = flt_ot_conf_hdr_init(sizeof(*retptr), id, linenum, head, err);
- if (retptr != NULL)
- FLT_OT_DBG_CONF_CONTEXT("- init ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_conf_context_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_conf_context_free(struct flt_ot_conf_context **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_CONF_CONTEXT("- free ", *ptr);
-
- FLT_OT_FREE((*ptr)->id);
- FLT_OT_LIST_DEL(&((*ptr)->list));
- FLT_OT_FREE_CLEAR(*ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_conf_span_init -
- *
- * ARGUMENTS
- * id -
- * linenum -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_conf_span *flt_ot_conf_span_init(const char *id, int linenum, struct list *head, char **err)
-{
- struct flt_ot_conf_span *retptr;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p:%p", id, linenum, head, FLT_OT_DPTR_ARGS(err));
-
- retptr = flt_ot_conf_hdr_init(sizeof(*retptr), id, linenum, head, err);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- LIST_INIT(&(retptr->tags));
- LIST_INIT(&(retptr->logs));
- LIST_INIT(&(retptr->baggages));
-
- FLT_OT_DBG_CONF_SPAN("- init ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_conf_span_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_conf_span_free(struct flt_ot_conf_span **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_CONF_SPAN("- free ", *ptr);
-
- FLT_OT_FREE((*ptr)->id);
- FLT_OT_FREE((*ptr)->ref_id);
- FLT_OT_FREE((*ptr)->ctx_id);
- FLT_OT_LIST_DESTROY(sample, &((*ptr)->tags));
- FLT_OT_LIST_DESTROY(sample, &((*ptr)->logs));
- FLT_OT_LIST_DESTROY(sample, &((*ptr)->baggages));
- FLT_OT_LIST_DEL(&((*ptr)->list));
- FLT_OT_FREE_CLEAR(*ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_conf_scope_init -
- *
- * ARGUMENTS
- * id -
- * linenum -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_conf_scope *flt_ot_conf_scope_init(const char *id, int linenum, struct list *head, char **err)
-{
- struct flt_ot_conf_scope *retptr = NULL;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p:%p", id, linenum, head, FLT_OT_DPTR_ARGS(err));
-
- retptr = flt_ot_conf_hdr_init(sizeof(*retptr), id, linenum, head, err);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- LIST_INIT(&(retptr->acls));
- LIST_INIT(&(retptr->contexts));
- LIST_INIT(&(retptr->spans));
- LIST_INIT(&(retptr->finish));
-
- FLT_OT_DBG_CONF_SCOPE("- init ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-/***
- * NAME
- * flt_ot_conf_scope_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_conf_scope_free(struct flt_ot_conf_scope **ptr)
-{
- struct acl *acl, *aclback;
-
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_CONF_SCOPE("- free ", *ptr);
-
- FLT_OT_FREE((*ptr)->id);
- list_for_each_entry_safe(acl, aclback, &((*ptr)->acls), list) {
- prune_acl(acl);
- FLT_OT_LIST_DEL(&(acl->list));
- FLT_OT_FREE(acl);
- }
- free_acl_cond((*ptr)->cond);
- FLT_OT_LIST_DESTROY(context, &((*ptr)->contexts));
- FLT_OT_LIST_DESTROY(span, &((*ptr)->spans));
- FLT_OT_LIST_DESTROY(str, &((*ptr)->finish));
- FLT_OT_LIST_DEL(&((*ptr)->list));
- FLT_OT_FREE_CLEAR(*ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_conf_group_init -
- *
- * ARGUMENTS
- * id -
- * linenum -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_conf_group *flt_ot_conf_group_init(const char *id, int linenum, struct list *head, char **err)
-{
- struct flt_ot_conf_group *retptr;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p:%p", id, linenum, head, FLT_OT_DPTR_ARGS(err));
-
- retptr = flt_ot_conf_hdr_init(sizeof(*retptr), id, linenum, head, err);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- LIST_INIT(&(retptr->ph_scopes));
-
- FLT_OT_DBG_CONF_GROUP("- init ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_conf_group_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_conf_group_free(struct flt_ot_conf_group **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_CONF_GROUP("- free ", *ptr);
-
- FLT_OT_FREE((*ptr)->id);
- FLT_OT_LIST_DESTROY(ph_scope, &((*ptr)->ph_scopes));
- FLT_OT_LIST_DEL(&((*ptr)->list));
- FLT_OT_FREE_CLEAR(*ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_conf_tracer_init -
- *
- * ARGUMENTS
- * id -
- * linenum -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_conf_tracer *flt_ot_conf_tracer_init(const char *id, int linenum, char **err)
-{
- struct flt_ot_conf_tracer *retptr;
-
- FLT_OT_FUNC("\"%s\", %d, %p:%p", id, linenum, FLT_OT_DPTR_ARGS(err));
-
- retptr = flt_ot_conf_hdr_init(sizeof(*retptr), id, linenum, NULL, err);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- retptr->rate_limit = FLT_OT_FLOAT_U32(FLT_OT_RATE_LIMIT_MAX, FLT_OT_RATE_LIMIT_MAX);
- init_new_proxy(&(retptr->proxy_log));
- LIST_INIT(&(retptr->acls));
- LIST_INIT(&(retptr->ph_groups));
- LIST_INIT(&(retptr->ph_scopes));
-
- FLT_OT_DBG_CONF_TRACER("- init ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_conf_tracer_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_conf_tracer_free(struct flt_ot_conf_tracer **ptr)
-{
- struct acl *acl, *aclback;
- struct logger *logger, *loggerback;
-
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_CONF_TRACER("- free ", *ptr);
-
- FLT_OT_FREE((*ptr)->id);
- FLT_OT_FREE((*ptr)->config);
- FLT_OT_FREE((*ptr)->cfgbuf);
- FLT_OT_FREE((*ptr)->plugin);
- FLT_OT_DBG(2, "- deleting acls list %s", flt_ot_list_debug(&((*ptr)->acls)));
- list_for_each_entry_safe(acl, aclback, &((*ptr)->acls), list) {
- prune_acl(acl);
- FLT_OT_LIST_DEL(&(acl->list));
- FLT_OT_FREE(acl);
- }
- FLT_OT_DBG(2, "- deleting proxy_log.loggers list %s", flt_ot_list_debug(&((*ptr)->proxy_log.loggers)));
- list_for_each_entry_safe(logger, loggerback, &((*ptr)->proxy_log.loggers), list) {
- LIST_DELETE(&(logger->list));
- FLT_OT_FREE(logger);
- }
- FLT_OT_LIST_DESTROY(ph_group, &((*ptr)->ph_groups));
- FLT_OT_LIST_DESTROY(ph_scope, &((*ptr)->ph_scopes));
- FLT_OT_FREE_CLEAR(*ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_conf_init -
- *
- * ARGUMENTS
- * px -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_conf *flt_ot_conf_init(struct proxy *px)
-{
- struct flt_ot_conf *retptr;
-
- FLT_OT_FUNC("%p", px);
-
- retptr = FLT_OT_CALLOC(1, sizeof(*retptr));
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- retptr->proxy = px;
- LIST_INIT(&(retptr->groups));
- LIST_INIT(&(retptr->scopes));
-
- FLT_OT_DBG_CONF("- init ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_conf_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_conf_free(struct flt_ot_conf **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_CONF("- free ", *ptr);
-
- FLT_OT_FREE((*ptr)->id);
- FLT_OT_FREE((*ptr)->cfg_file);
- flt_ot_conf_tracer_free(&((*ptr)->tracer));
- FLT_OT_LIST_DESTROY(group, &((*ptr)->groups));
- FLT_OT_LIST_DESTROY(scope, &((*ptr)->scopes));
- FLT_OT_FREE_CLEAR(*ptr);
-
- FLT_OT_RETURN();
-}
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-#define FLT_OT_EVENT_DEF(a,b,c,d,e,f) { AN_##b##_##a, SMP_OPT_DIR_##b, SMP_VAL_FE_##c, SMP_VAL_BE_##d, e, f },
-const struct flt_ot_event_data flt_ot_event_data[FLT_OT_EVENT_MAX] = { FLT_OT_EVENT_DEFINES };
-#undef FLT_OT_EVENT_DEF
-
-
-/***
- * NAME
- * flt_ot_scope_run_span -
- *
- * ARGUMENTS
- * s -
- * f -
- * chn -
- * dir -
- * span -
- * data -
- * conf_span -
- * ts -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 if it needs to wait,
- * any other value otherwise.
- */
-static int flt_ot_scope_run_span(struct stream *s, struct filter *f, struct channel *chn, uint dir, struct flt_ot_scope_span *span, struct flt_ot_scope_data *data, const struct flt_ot_conf_span *conf_span, const struct timespec *ts, char **err)
-{
- struct flt_ot_conf *conf = FLT_OT_CONF(f);
- int retval = FLT_OT_RET_OK;
-
- FLT_OT_FUNC("%p, %p, %p, %u, %p, %p, %p, %p, %p:%p", s, f, chn, dir, span, data, conf_span, ts, FLT_OT_DPTR_ARGS(err));
-
- if (span == NULL)
- FLT_OT_RETURN_INT(retval);
-
- if (span->span == NULL) {
- span->span = ot_span_init(conf->tracer->tracer, span->id, ts, NULL, span->ref_type, FLT_OT_DEREF(span->ref_ctx, idx, -1), span->ref_span, data->tags, data->num_tags, err);
- if (span->span == NULL)
- retval = FLT_OT_RET_ERROR;
- }
- else if (data->num_tags > 0)
- if (ot_span_tag(span->span, data->tags, data->num_tags) == -1)
- retval = FLT_OT_RET_ERROR;
-
- if ((span->span != NULL) && (data->baggage != NULL))
- if (ot_span_set_baggage(span->span, data->baggage) == -1)
- retval = FLT_OT_RET_ERROR;
-
- if ((span->span != NULL) && (data->num_log_fields > 0))
- if (ot_span_log(span->span, data->log_fields, data->num_log_fields) == -1)
- retval = FLT_OT_RET_ERROR;
-
- if ((span->span != NULL) && (conf_span->ctx_id != NULL)) {
- struct otc_http_headers_writer writer;
- struct otc_text_map *text_map = NULL;
- struct otc_span_context *span_ctx;
-
- span_ctx = ot_inject_http_headers(conf->tracer->tracer, span->span, &writer, err);
- if (span_ctx != NULL) {
- int i = 0;
-
- if (conf_span->ctx_flags & (FLT_OT_CTX_USE_VARS | FLT_OT_CTX_USE_HEADERS)) {
- for (text_map = &(writer.text_map); i < text_map->count; i++) {
-#ifdef USE_OT_VARS
- if (!(conf_span->ctx_flags & FLT_OT_CTX_USE_VARS))
- /* Do nothing. */;
- else if (flt_ot_var_register(FLT_OT_VARS_SCOPE, conf_span->ctx_id, text_map->key[i], err) == -1)
- retval = FLT_OT_RET_ERROR;
- else if (flt_ot_var_set(s, FLT_OT_VARS_SCOPE, conf_span->ctx_id, text_map->key[i], text_map->value[i], dir, err) == -1)
- retval = FLT_OT_RET_ERROR;
-#endif
-
- if (!(conf_span->ctx_flags & FLT_OT_CTX_USE_HEADERS))
- /* Do nothing. */;
- else if (flt_ot_http_header_set(chn, conf_span->ctx_id, text_map->key[i], text_map->value[i], err) == -1)
- retval = FLT_OT_RET_ERROR;
- }
- }
-
- span_ctx->destroy(&span_ctx);
- otc_text_map_destroy(&text_map, OTC_TEXT_MAP_FREE_KEY | OTC_TEXT_MAP_FREE_VALUE);
- }
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_scope_run -
- *
- * ARGUMENTS
- * s -
- * f -
- * chn -
- * conf_scope -
- * ts -
- * dir -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 if it needs to wait,
- * any other value otherwise.
- */
-int flt_ot_scope_run(struct stream *s, struct filter *f, struct channel *chn, struct flt_ot_conf_scope *conf_scope, const struct timespec *ts, uint dir, char **err)
-{
- struct flt_ot_conf *conf = FLT_OT_CONF(f);
- struct flt_ot_conf_context *conf_ctx;
- struct flt_ot_conf_span *conf_span;
- struct flt_ot_conf_str *finish;
- struct timespec ts_now;
- int retval = FLT_OT_RET_OK;
-
- FLT_OT_FUNC("%p, %p, %p, %p, %p, %u, %p:%p", s, f, chn, conf_scope, ts, dir, FLT_OT_DPTR_ARGS(err));
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s)", flt_ot_chn_label(chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s));
- FLT_OT_DBG(3, "run scope '%s' %d", conf_scope->id, conf_scope->event);
- FLT_OT_DBG_CONF_SCOPE("run scope ", conf_scope);
-
- if (ts == NULL) {
- (void)clock_gettime(CLOCK_MONOTONIC, &ts_now);
-
- ts = &ts_now;
- }
-
- if (conf_scope->cond != NULL) {
- enum acl_test_res res;
- int rc;
-
- res = acl_exec_cond(conf_scope->cond, s->be, s->sess, s, dir | SMP_OPT_FINAL);
- rc = acl_pass(res);
- if (conf_scope->cond->pol == ACL_COND_UNLESS)
- rc = !rc;
-
- FLT_OT_DBG(3, "the ACL rule %s", rc ? "matches" : "does not match");
-
- /*
- * If the rule does not match, the current scope is skipped.
- *
- * If it is a root span, further processing of the session is
- * disabled. As soon as the first span is encountered which
- * is marked as root, further search is interrupted.
- */
- if (!rc) {
- list_for_each_entry(conf_span, &(conf_scope->spans), list)
- if (conf_span->flag_root) {
- FLT_OT_DBG(0, "session disabled");
-
- FLT_OT_RT_CTX(f->ctx)->flag_disabled = 1;
-
- _HA_ATOMIC_ADD(conf->cnt.disabled + 0, 1);
-
- break;
- }
-
- FLT_OT_RETURN_INT(retval);
- }
- }
-
- list_for_each_entry(conf_ctx, &(conf_scope->contexts), list) {
- struct otc_text_map *text_map = NULL;
-
- FLT_OT_DBG(3, "run context '%s' -> '%s'", conf_scope->id, conf_ctx->id);
- FLT_OT_DBG_CONF_CONTEXT("run context ", conf_ctx);
-
- /*
- * The OpenTracing context is read from the HTTP header
- * or from HAProxy variables.
- */
- if (conf_ctx->flags & FLT_OT_CTX_USE_HEADERS)
- text_map = flt_ot_http_headers_get(chn, conf_ctx->id, conf_ctx->id_len, err);
-#ifdef USE_OT_VARS
- else
- text_map = flt_ot_vars_get(s, FLT_OT_VARS_SCOPE, conf_ctx->id, dir, err);
-#endif
-
- if (text_map != NULL) {
- if (flt_ot_scope_context_init(f->ctx, conf->tracer->tracer, conf_ctx->id, conf_ctx->id_len, text_map, dir, err) == NULL)
- retval = FLT_OT_RET_ERROR;
-
- otc_text_map_destroy(&text_map, OTC_TEXT_MAP_FREE_KEY | OTC_TEXT_MAP_FREE_VALUE);
- } else {
- retval = FLT_OT_RET_ERROR;
- }
- }
-
- list_for_each_entry(conf_span, &(conf_scope->spans), list) {
- struct flt_ot_scope_data data;
- struct flt_ot_scope_span *span;
- struct flt_ot_conf_sample *sample;
-
- FLT_OT_DBG(3, "run span '%s' -> '%s'", conf_scope->id, conf_span->id);
- FLT_OT_DBG_CONF_SPAN("run span ", conf_span);
-
- (void)memset(&data, 0, sizeof(data));
-
- span = flt_ot_scope_span_init(f->ctx, conf_span->id, conf_span->id_len, conf_span->ref_type, conf_span->ref_id, conf_span->ref_id_len, dir, err);
- if (span == NULL)
- retval = FLT_OT_RET_ERROR;
-
- list_for_each_entry(sample, &(conf_span->tags), list) {
- FLT_OT_DBG(3, "adding tag '%s' -> '%s'", sample->key, sample->value);
-
- if (flt_ot_sample_add(s, dir, sample, &data, FLT_OT_EVENT_SAMPLE_TAG, err) == FLT_OT_RET_ERROR)
- retval = FLT_OT_RET_ERROR;
- }
-
- list_for_each_entry(sample, &(conf_span->logs), list) {
- FLT_OT_DBG(3, "adding log '%s' -> '%s'", sample->key, sample->value);
-
- if (flt_ot_sample_add(s, dir, sample, &data, FLT_OT_EVENT_SAMPLE_LOG, err) == FLT_OT_RET_ERROR)
- retval = FLT_OT_RET_ERROR;
- }
-
- list_for_each_entry(sample, &(conf_span->baggages), list) {
- FLT_OT_DBG(3, "adding baggage '%s' -> '%s'", sample->key, sample->value);
-
- if (flt_ot_sample_add(s, dir, sample, &data, FLT_OT_EVENT_SAMPLE_BAGGAGE, err) == FLT_OT_RET_ERROR)
- retval = FLT_OT_RET_ERROR;
- }
-
- if (retval != FLT_OT_RET_ERROR)
- if (flt_ot_scope_run_span(s, f, chn, dir, span, &data, conf_span, ts, err) == FLT_OT_RET_ERROR)
- retval = FLT_OT_RET_ERROR;
-
- flt_ot_scope_data_free(&data);
- }
-
- list_for_each_entry(finish, &(conf_scope->finish), list)
- if (flt_ot_scope_finish_mark(f->ctx, finish->str, finish->str_len) == -1)
- retval = FLT_OT_RET_ERROR;
-
- flt_ot_scope_finish_marked(f->ctx, ts);
- flt_ot_scope_free_unused(f->ctx, chn);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_event_run -
- *
- * ARGUMENTS
- * s -
- * f -
- * chn -
- * event -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 if it needs to wait,
- * any other value otherwise.
- */
-int flt_ot_event_run(struct stream *s, struct filter *f, struct channel *chn, int event, char **err)
-{
- struct flt_ot_conf *conf = FLT_OT_CONF(f);
- struct flt_ot_conf_scope *conf_scope;
- struct timespec ts;
- int retval = FLT_OT_RET_OK;
-
- FLT_OT_FUNC("%p, %p, %p, %d, %p:%p", s, f, chn, event, FLT_OT_DPTR_ARGS(err));
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s)", flt_ot_chn_label(chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s));
- FLT_OT_DBG(3, "run event '%s' %d", flt_ot_event_data[event].name, event);
-
-#ifdef DEBUG_OT
- _HA_ATOMIC_ADD(conf->cnt.event[event].htx + (htx_is_empty(htxbuf(&(chn->buf))) ? 1 : 0), 1);
-#endif
-
- FLT_OT_RT_CTX(f->ctx)->analyzers |= flt_ot_event_data[event].an_bit;
-
- /* All spans should be created/completed at the same time. */
- (void)clock_gettime(CLOCK_MONOTONIC, &ts);
-
- /*
- * It is possible that there are defined multiple scopes that use the
- * same event. Therefore, there must not be a 'break' here, ie an
- * exit from the 'for' loop.
- */
- list_for_each_entry(conf_scope, &(conf->scopes), list) {
- if (conf_scope->event != event)
- /* Do nothing. */;
- else if (!conf_scope->flag_used)
- FLT_OT_DBG(3, "scope '%s' %d not used", conf_scope->id, conf_scope->event);
- else if (flt_ot_scope_run(s, f, chn, conf_scope, &ts, flt_ot_event_data[event].smp_opt_dir, err) == FLT_OT_RET_ERROR)
- retval = FLT_OT_RET_ERROR;
- }
-
-#ifdef USE_OT_VARS
- flt_ot_vars_dump(s);
-#endif
- flt_ot_http_headers_dump(chn);
-
- FLT_OT_DBG(3, "event = %d, chn = %p, s->req = %p, s->res = %p", event, chn, &(s->req), &(s->res));
-
- FLT_OT_RETURN_INT(retval);
-}
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-/*
- * OpenTracing filter id, used to identify OpenTracing filters.
- * The name of this variable is consistent with the other filter names
- * declared in include/haproxy/filters.h .
- */
-const char *ot_flt_id = "the OpenTracing filter";
-
-
-/***
- * NAME
- * flt_ot_is_disabled -
- *
- * ARGUMENTS
- * f -
- * event -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-bool flt_ot_is_disabled(const struct filter *f FLT_OT_DBG_ARGS(, int event))
-{
-#ifdef DEBUG_OT
- const struct flt_ot_conf *conf = FLT_OT_CONF(f);
- const char *msg;
-#endif
- bool retval;
-
- retval = FLT_OT_RT_CTX(f->ctx)->flag_disabled ? 1 : 0;
-
-#ifdef DEBUG_OT
- msg = retval ? " (disabled)" : "";
-
- if (FLT_OT_IN_RANGE(event, 0, FLT_OT_EVENT_MAX - 1))
- FLT_OT_DBG(2, "filter '%s', type: %s, event: '%s' %d%s", conf->id, flt_ot_type(f), flt_ot_event_data[event].name, event, msg);
- else
- FLT_OT_DBG(2, "filter '%s', type: %s%s", conf->id, flt_ot_type(f), msg);
-#endif
-
- return retval;
-}
-
-
-/***
- * NAME
- * flt_ot_return_int -
- *
- * ARGUMENTS
- * f -
- * err -
- * retval -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_return_int(const struct filter *f, char **err, int retval)
-{
- struct flt_ot_runtime_context *rt_ctx = f->ctx;
-
- if ((retval == FLT_OT_RET_ERROR) || ((err != NULL) && (*err != NULL))) {
- if (rt_ctx->flag_harderr) {
- FLT_OT_DBG(1, "WARNING: filter hard-error (disabled)");
-
- rt_ctx->flag_disabled = 1;
-
- _HA_ATOMIC_ADD(FLT_OT_CONF(f)->cnt.disabled + 1, 1);
- } else {
- FLT_OT_DBG(1, "WARNING: filter soft-error");
- }
-
- retval = FLT_OT_RET_OK;
- }
-
- FLT_OT_ERR_FREE(*err);
-
- return retval;
-}
-
-
-/***
- * NAME
- * flt_ot_return_void -
- *
- * ARGUMENTS
- * f -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void flt_ot_return_void(const struct filter *f, char **err)
-{
- struct flt_ot_runtime_context *rt_ctx = f->ctx;
-
- if ((err != NULL) && (*err != NULL)) {
- if (rt_ctx->flag_harderr) {
- FLT_OT_DBG(1, "WARNING: filter hard-error (disabled)");
-
- rt_ctx->flag_disabled = 1;
-
- _HA_ATOMIC_ADD(FLT_OT_CONF(f)->cnt.disabled + 1, 1);
- } else {
- FLT_OT_DBG(1, "WARNING: filter soft-error");
- }
- }
-
- FLT_OT_ERR_FREE(*err);
-}
-
-
-/***
- * NAME
- * flt_ot_init - Initialize the filter.
- *
- * ARGUMENTS
- * p -
- * fconf -
- *
- * DESCRIPTION
- * It initializes the filter for a proxy. You may define this callback
- * if you need to complete your filter configuration.
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, any other value otherwise.
- */
-static int flt_ot_init(struct proxy *p, struct flt_conf *fconf)
-{
- static int warnings_emitted = 0;
- struct flt_ot_conf *conf = FLT_OT_DEREF(fconf, conf, NULL);
- char *err = NULL;
- int retval = FLT_OT_RET_ERROR;
-
- FLT_OT_FUNC("%p, %p", p, fconf);
-
- if (!warnings_emitted && !deprecated_directives_allowed) {
- warnings_emitted++;
- ha_warning("The opentracing filter was deprecated in haproxy 3.3 and will be removed in 3.5.\n");
- }
-
- if (conf == NULL)
- FLT_OT_RETURN_INT(retval);
-
- flt_ot_cli_init();
-
- /*
- * Initialize the OpenTracing library.
- */
- retval = ot_init(&(conf->tracer->tracer), conf->tracer->plugin, &err);
- if (retval != FLT_OT_RET_ERROR)
- /* Do nothing. */;
- else if (err != NULL) {
- FLT_OT_ALERT("%s", err);
-
- FLT_OT_ERR_FREE(err);
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_deinit - Free resources allocated by the filter.
- *
- * ARGUMENTS
- * p -
- * fconf -
- *
- * DESCRIPTION
- * It cleans up what the parsing function and the init callback have done.
- * This callback is useful to release memory allocated for the filter
- * configuration.
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void flt_ot_deinit(struct proxy *p, struct flt_conf *fconf)
-{
- struct flt_ot_conf **conf = (fconf == NULL) ? NULL : (typeof(conf))&(fconf->conf);
-#ifdef DEBUG_OT
- int i;
-#endif
-
- FLT_OT_FUNC("%p, %p", p, fconf);
-
- if (conf == NULL)
- FLT_OT_RETURN();
-
- ot_debug();
- ot_close(&((*conf)->tracer->tracer));
-
-#ifdef DEBUG_OT
- FLT_OT_DBG(0, "--- used events ----------");
- for (i = 0; i < FLT_OT_TABLESIZE((*conf)->cnt.event); i++)
- if ((*conf)->cnt.event[i].flag_used)
- FLT_OT_DBG(0, " %02d: %" PRIu64 " / %" PRIu64, i, (*conf)->cnt.event[i].htx[0], (*conf)->cnt.event[i].htx[1]);
-#endif
-
- flt_ot_conf_free(conf);
-
- FLT_OT_MEMINFO();
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_check - Check configuration of the filter for the specified proxy.
- *
- * ARGUMENTS
- * p -
- * fconf -
- *
- * DESCRIPTION
- * Optionally, by implementing the flt_ot_check() callback, you add a
- * step to check the internal configuration of your filter after the
- * parsing phase, when the HAProxy configuration is fully defined.
- *
- * RETURN VALUE
- * Returns the number of encountered errors.
- */
-static int flt_ot_check(struct proxy *p, struct flt_conf *fconf)
-{
- struct proxy *px;
- struct flt_ot_conf *conf = FLT_OT_DEREF(fconf, conf, NULL);
- struct flt_ot_conf_group *conf_group;
- struct flt_ot_conf_scope *conf_scope;
- struct flt_ot_conf_ph *ph_group, *ph_scope;
- int retval = 0, scope_unused_cnt = 0, span_root_cnt = 0;
-
- FLT_OT_FUNC("%p, %p", p, fconf);
-
- if (conf == NULL)
- FLT_OT_RETURN_INT(++retval);
-
- /*
- * If only the proxy specified with the <p> parameter is checked, then
- * no duplicate filters can be found that are not defined in the same
- * configuration sections.
- */
- for (px = proxies_list; px != NULL; px = px->next) {
- struct flt_conf *fconf_tmp;
-
- FLT_OT_DBG(2, "proxy '%s'", px->id);
-
- /*
- * The names of all OT filters (filter ID) should be checked,
- * they must be unique.
- */
- list_for_each_entry(fconf_tmp, &(px->filter_configs), list)
- if ((fconf_tmp != fconf) && (fconf_tmp->id == ot_flt_id)) {
- struct flt_ot_conf *conf_tmp = fconf_tmp->conf;
-
- FLT_OT_DBG(2, " OT filter '%s'", conf_tmp->id);
-
- if (strcmp(conf_tmp->id, conf->id) == 0) {
- FLT_OT_ALERT("''%s' : duplicated filter ID'", conf_tmp->id);
-
- retval++;
- }
- }
- }
-
- if (FLT_OT_DEREF(conf->tracer, id, NULL) == NULL) {
- FLT_OT_ALERT("''%s' : no tracer found'", conf->id);
-
- retval++;
- }
-
- /*
- * Checking that all defined 'ot-group' sections have correctly declared
- * 'ot-scope' sections (ie whether the declared 'ot-scope' sections have
- * corresponding definitions).
- */
- list_for_each_entry(conf_group, &(conf->groups), list)
- list_for_each_entry(ph_scope, &(conf_group->ph_scopes), list) {
- bool flag_found = 0;
-
- list_for_each_entry(conf_scope, &(conf->scopes), list)
- if (strcmp(ph_scope->id, conf_scope->id) == 0) {
- ph_scope->ptr = conf_scope;
- conf_scope->flag_used = 1;
- flag_found = 1;
-
- break;
- }
-
- if (!flag_found) {
- FLT_OT_ALERT("'" FLT_OT_PARSE_SECTION_GROUP_ID " '%s' : try to use undefined " FLT_OT_PARSE_SECTION_SCOPE_ID " '%s''", conf_group->id, ph_scope->id);
-
- retval++;
- }
- }
-
- if (conf->tracer != NULL) {
- /*
- * Checking that all declared 'groups' keywords have correctly
- * defined 'ot-group' sections.
- */
- list_for_each_entry(ph_group, &(conf->tracer->ph_groups), list) {
- bool flag_found = 0;
-
- list_for_each_entry(conf_group, &(conf->groups), list)
- if (strcmp(ph_group->id, conf_group->id) == 0) {
- ph_group->ptr = conf_group;
- conf_group->flag_used = 1;
- flag_found = 1;
-
- break;
- }
-
- if (!flag_found) {
- FLT_OT_ALERT("'" FLT_OT_PARSE_SECTION_TRACER_ID " '%s' : try to use undefined " FLT_OT_PARSE_SECTION_GROUP_ID " '%s''", conf->tracer->id, ph_group->id);
-
- retval++;
- }
- }
-
- /*
- * Checking that all declared 'scopes' keywords have correctly
- * defined 'ot-scope' sections.
- */
- list_for_each_entry(ph_scope, &(conf->tracer->ph_scopes), list) {
- bool flag_found = 0;
-
- list_for_each_entry(conf_scope, &(conf->scopes), list)
- if (strcmp(ph_scope->id, conf_scope->id) == 0) {
- ph_scope->ptr = conf_scope;
- conf_scope->flag_used = 1;
- flag_found = 1;
-
- break;
- }
-
- if (!flag_found) {
- FLT_OT_ALERT("'" FLT_OT_PARSE_SECTION_TRACER_ID " '%s' : try to use undefined " FLT_OT_PARSE_SECTION_SCOPE_ID " '%s''", conf->tracer->id, ph_scope->id);
-
- retval++;
- }
- }
- }
-
- FLT_OT_DBG(3, "--- filter '%s' configuration ----------", conf->id);
- FLT_OT_DBG(3, "- defined spans ----------");
-
- list_for_each_entry(conf_scope, &(conf->scopes), list) {
- if (conf_scope->flag_used) {
- struct flt_ot_conf_span *conf_span;
-
- /*
- * In principle, only one span should be labeled
- * as a root span.
- */
- list_for_each_entry(conf_span, &(conf_scope->spans), list) {
- FLT_OT_DBG_CONF_SPAN(" ", conf_span);
-
- span_root_cnt += conf_span->flag_root ? 1 : 0;
- }
-
-#ifdef DEBUG_OT
- conf->cnt.event[conf_scope->event].flag_used = 1;
-#endif
-
- /* Set the flags of the analyzers used. */
- conf->tracer->analyzers |= flt_ot_event_data[conf_scope->event].an_bit;
- } else {
- FLT_OT_ALERT("''%s' : unused " FLT_OT_PARSE_SECTION_SCOPE_ID " '%s''", conf->id, conf_scope->id);
-
- scope_unused_cnt++;
- }
- }
-
- /*
- * Unused scopes or a number of root spans other than one do not
- * necessarily have to be errors, but it is good to print it when
- * starting HAProxy.
- */
- if (scope_unused_cnt > 0)
- FLT_OT_ALERT("''%s' : %d scope(s) not in use'", conf->id, scope_unused_cnt);
-
- if (LIST_ISEMPTY(&(conf->scopes)))
- /* Do nothing. */;
- else if (span_root_cnt == 0)
- FLT_OT_ALERT("''%s' : no span is marked as the root span'", conf->id);
- else if (span_root_cnt > 1)
- FLT_OT_ALERT("''%s' : multiple spans are marked as the root span'", conf->id);
-
- FLT_OT_DBG_LIST(conf, group, "", "defined", _group,
- FLT_OT_DBG_CONF_GROUP(" ", _group);
- FLT_OT_DBG_LIST(_group, ph_scope, " ", "used", _scope, FLT_OT_DBG_CONF_PH(" ", _scope)));
- FLT_OT_DBG_LIST(conf, scope, "", "defined", _scope, FLT_OT_DBG_CONF_SCOPE(" ", _scope));
-
- if (conf->tracer != NULL) {
- FLT_OT_DBG(3, " --- tracer '%s' configuration ----------", conf->tracer->id);
- FLT_OT_DBG_LIST(conf->tracer, ph_group, " ", "used", _group, FLT_OT_DBG_CONF_PH(" ", _group));
- FLT_OT_DBG_LIST(conf->tracer, ph_scope, " ", "used", _scope, FLT_OT_DBG_CONF_PH(" ", _scope));
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_init_per_thread -
- *
- * ARGUMENTS
- * p -
- * fconf -
- *
- * DESCRIPTION
- * It initializes the filter for each thread. It works the same way than
- * flt_ot_init() but in the context of a thread. This callback is called
- * after the thread creation.
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, any other value otherwise.
- */
-static int flt_ot_init_per_thread(struct proxy *p, struct flt_conf *fconf)
-{
- struct flt_ot_conf *conf = FLT_OT_DEREF(fconf, conf, NULL);
- char *err = NULL;
- int retval = FLT_OT_RET_ERROR;
-
- FLT_OT_FUNC("%p, %p", p, fconf);
-
- if (conf == NULL)
- FLT_OT_RETURN_INT(retval);
-
- /*
- * Start the OpenTracing library tracer thread.
- * Enable HTX streams filtering.
- */
- if (!(fconf->flags & FLT_CFG_FL_HTX)) {
- retval = ot_start(conf->tracer->tracer, conf->tracer->cfgbuf, &err);
- if (retval != FLT_OT_RET_ERROR)
- fconf->flags |= FLT_CFG_FL_HTX;
- else if (err != NULL) {
- FLT_OT_ALERT("%s", err);
-
- FLT_OT_ERR_FREE(err);
- }
- } else {
- retval = FLT_OT_RET_OK;
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-#ifdef DEBUG_OT
-
-/***
- * NAME
- * flt_ot_deinit_per_thread -
- *
- * ARGUMENTS
- * p -
- * fconf -
- *
- * DESCRIPTION
- * It cleans up what the init_per_thread callback have done. It is called
- * in the context of a thread, before exiting it.
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void flt_ot_deinit_per_thread(struct proxy *p, struct flt_conf *fconf)
-{
- FLT_OT_FUNC("%p, %p", p, fconf);
-
- FLT_OT_RETURN();
-}
-
-#endif /* DEBUG_OT */
-
-
-/***
- * NAME
- * flt_ot_attach - Called when a filter instance is created and attach to a stream.
- *
- * ARGUMENTS
- * s -
- * f -
- *
- * DESCRIPTION
- * It is called after a filter instance creation, when it is attached to a
- * stream. This happens when the stream is started for filters defined on
- * the stream's frontend and when the backend is set for filters declared
- * on the stream's backend. It is possible to ignore the filter, if needed,
- * by returning 0. This could be useful to have conditional filtering.
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 to ignore the filter,
- * any other value otherwise.
- */
-static int flt_ot_attach(struct stream *s, struct filter *f)
-{
- const struct flt_ot_conf *conf = FLT_OT_CONF(f);
- char *err = NULL;
-
- FLT_OT_FUNC("%p, %p", s, f);
-
- if (conf->tracer->flag_disabled) {
- FLT_OT_DBG(2, "filter '%s', type: %s (disabled)", conf->id, flt_ot_type(f));
-
- FLT_OT_RETURN_INT(FLT_OT_RET_IGNORE);
- }
- else if (conf->tracer->rate_limit < FLT_OT_FLOAT_U32(FLT_OT_RATE_LIMIT_MAX, FLT_OT_RATE_LIMIT_MAX)) {
- uint32_t rnd = ha_random32();
-
- if (conf->tracer->rate_limit <= rnd) {
- FLT_OT_DBG(2, "filter '%s', type: %s (ignored: %u <= %u)", conf->id, flt_ot_type(f), conf->tracer->rate_limit, rnd);
-
- FLT_OT_RETURN_INT(FLT_OT_RET_IGNORE);
- }
- }
-
- FLT_OT_DBG(2, "filter '%s', type: %s (run)", conf->id, flt_ot_type(f));
-
- f->ctx = flt_ot_runtime_context_init(s, f, &err);
- FLT_OT_ERR_FREE(err);
- if (f->ctx == NULL) {
- FLT_OT_LOG(LOG_EMERG, "failed to create context");
-
- FLT_OT_RETURN_INT(FLT_OT_RET_IGNORE);
- }
-
- /*
- * AN_REQ_WAIT_HTTP and AN_RES_WAIT_HTTP analyzers can only be used
- * in the .channel_post_analyze callback function.
- */
- f->pre_analyzers |= conf->tracer->analyzers & ((AN_REQ_ALL & ~AN_REQ_WAIT_HTTP & ~AN_REQ_HTTP_TARPIT) | (AN_RES_ALL & ~AN_RES_WAIT_HTTP));
- f->post_analyzers |= conf->tracer->analyzers & (AN_REQ_WAIT_HTTP | AN_RES_WAIT_HTTP);
-
- FLT_OT_LOG(LOG_INFO, "%08x %08x", f->pre_analyzers, f->post_analyzers);
-
-#ifdef USE_OT_VARS
- flt_ot_vars_dump(s);
-#endif
- flt_ot_http_headers_dump(&(s->req));
-
- FLT_OT_RETURN_INT(FLT_OT_RET_OK);
-}
-
-
-#ifdef DEBUG_OT
-
-/***
- * NAME
- * flt_ot_stream_start - Called when a stream is created.
- *
- * ARGUMENTS
- * s -
- * f -
- *
- * DESCRIPTION
- * It is called when a stream is started. This callback can fail by
- * returning a negative value. It will be considered as a critical error
- * by HAProxy which disabled the listener for a short time.
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, any other value otherwise.
- */
-static int flt_ot_stream_start(struct stream *s, struct filter *f)
-{
- char *err = NULL;
- int retval = FLT_OT_RET_OK;
-
- FLT_OT_FUNC("%p, %p", s, f);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, -1)))
- FLT_OT_RETURN_INT(retval);
-
- FLT_OT_RETURN_INT(flt_ot_return_int(f, &err, retval));
-}
-
-
-/***
- * NAME
- * flt_ot_stream_set_backend - Called when a backend is set for a stream.
- *
- * ARGUMENTS
- * s -
- * f -
- * be -
- *
- * DESCRIPTION
- * It is called when a backend is set for a stream. This callbacks will be
- * called for all filters attached to a stream (frontend and backend). Note
- * this callback is not called if the frontend and the backend are the same.
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, any other value otherwise.
- */
-static int flt_ot_stream_set_backend(struct stream *s, struct filter *f, struct proxy *be)
-{
- char *err = NULL;
- int retval = FLT_OT_RET_OK;
-
- FLT_OT_FUNC("%p, %p, %p", s, f, be);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, -1)))
- FLT_OT_RETURN_INT(retval);
-
- FLT_OT_DBG(3, "backend: %s", be->id);
-
- FLT_OT_RETURN_INT(flt_ot_return_int(f, &err, retval));
-}
-
-
-/***
- * NAME
- * flt_ot_stream_stop - Called when a stream is destroyed.
- *
- * ARGUMENTS
- * s -
- * f -
- *
- * DESCRIPTION
- * It is called when a stream is stopped. This callback always succeed.
- * Anyway, it is too late to return an error.
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void flt_ot_stream_stop(struct stream *s, struct filter *f)
-{
- char *err = NULL;
-
- FLT_OT_FUNC("%p, %p", s, f);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, -1)))
- FLT_OT_RETURN();
-
- flt_ot_return_void(f, &err);
-
- FLT_OT_RETURN();
-}
-
-#endif /* DEBUG_OT */
-
-
-/***
- * NAME
- * flt_ot_detach - Called when a filter instance is detach from a stream, just before its destruction.
- *
- * ARGUMENTS
- * s -
- * f -
- *
- * DESCRIPTION
- * It is called when a filter instance is detached from a stream, before its
- * destruction. This happens when the stream is stopped for filters defined
- * on the stream's frontend and when the analyze ends for filters defined on
- * the stream's backend.
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void flt_ot_detach(struct stream *s, struct filter *f)
-{
- FLT_OT_FUNC("%p, %p", s, f);
-
- FLT_OT_DBG(2, "filter '%s', type: %s", FLT_OT_CONF(f)->id, flt_ot_type(f));
-
- flt_ot_runtime_context_free(f);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_check_timeouts - Called when a stream is woken up because of an expired timer.
- *
- * ARGUMENTS
- * s -
- * f -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void flt_ot_check_timeouts(struct stream *s, struct filter *f)
-{
- char *err = NULL;
-
- FLT_OT_FUNC("%p, %p", s, f);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, -1)))
- FLT_OT_RETURN();
-
- s->pending_events |= STRM_EVT_MSG;
-
- flt_ot_return_void(f, &err);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_channel_start_analyze - Called when analyze starts for a given channel.
- *
- * ARGUMENTS
- * s -
- * f -
- * chn -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 if it needs to wait,
- * any other value otherwise.
- */
-static int flt_ot_channel_start_analyze(struct stream *s, struct filter *f, struct channel *chn)
-{
- char *err = NULL;
- int retval;
-
- FLT_OT_FUNC("%p, %p, %p", s, f, chn);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, (chn->flags & CF_ISRESP) ? FLT_OT_EVENT_RES_SERVER_SESS_START : FLT_OT_EVENT_REQ_CLIENT_SESS_START)))
- FLT_OT_RETURN_INT(FLT_OT_RET_OK);
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s)", flt_ot_chn_label(chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s));
-
- if (chn->flags & CF_ISRESP) {
- /* The response channel. */
- chn->analysers |= f->pre_analyzers & AN_RES_ALL;
-
- /* The event 'on-server-session-start'. */
- retval = flt_ot_event_run(s, f, chn, FLT_OT_EVENT_RES_SERVER_SESS_START, &err);
- if (retval == FLT_OT_RET_WAIT) {
- channel_dont_read(chn);
- channel_dont_close(chn);
- }
- } else {
- /* The request channel. */
- chn->analysers |= f->pre_analyzers & AN_REQ_ALL;
-
- /* The event 'on-client-session-start'. */
- retval = flt_ot_event_run(s, f, chn, FLT_OT_EVENT_REQ_CLIENT_SESS_START, &err);
- }
-
-// register_data_filter(s, chn, f);
-
- FLT_OT_RETURN_INT(flt_ot_return_int(f, &err, retval));
-}
-
-
-/***
- * NAME
- * flt_ot_channel_pre_analyze - Called before a processing happens on a given channel.
- *
- * ARGUMENTS
- * s -
- * f -
- * chn - the channel on which the analyzing is done
- * an_bit - the analyzer id
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 if it needs to wait,
- * any other value otherwise.
- */
-static int flt_ot_channel_pre_analyze(struct stream *s, struct filter *f, struct channel *chn, uint an_bit)
-{
- char *err = NULL;
- int i, event = -1, retval;
-
- FLT_OT_FUNC("%p, %p, %p, 0x%08x", s, f, chn, an_bit);
-
- for (i = 0; i < FLT_OT_TABLESIZE(flt_ot_event_data); i++)
- if (flt_ot_event_data[i].an_bit == an_bit) {
- event = i;
-
- break;
- }
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, event)))
- FLT_OT_RETURN_INT(FLT_OT_RET_OK);
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s), analyzer: %s", flt_ot_chn_label(chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s), flt_ot_analyzer(an_bit));
-
- retval = flt_ot_event_run(s, f, chn, event, &err);
-
- if ((retval == FLT_OT_RET_WAIT) && (chn->flags & CF_ISRESP)) {
- channel_dont_read(chn);
- channel_dont_close(chn);
- }
-
- FLT_OT_RETURN_INT(flt_ot_return_int(f, &err, retval));
-}
-
-
-/***
- * NAME
- * flt_ot_channel_post_analyze - Called after a processing happens on a given channel.
- *
- * ARGUMENTS
- * s -
- * f -
- * chn -
- * an_bit -
- *
- * DESCRIPTION
- * This function, for its part, is not resumable. It is called when a
- * filterable analyzer finishes its processing. So it called once for
- * the same analyzer.
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 if it needs to wait,
- * any other value otherwise.
- */
-static int flt_ot_channel_post_analyze(struct stream *s, struct filter *f, struct channel *chn, uint an_bit)
-{
- char *err = NULL;
- int i, event = -1, retval;
-
- FLT_OT_FUNC("%p, %p, %p, 0x%08x", s, f, chn, an_bit);
-
- for (i = 0; i < FLT_OT_TABLESIZE(flt_ot_event_data); i++)
- if (flt_ot_event_data[i].an_bit == an_bit) {
- event = i;
-
- break;
- }
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, event)))
- FLT_OT_RETURN_INT(FLT_OT_RET_OK);
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s), analyzer: %s", flt_ot_chn_label(chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s), flt_ot_analyzer(an_bit));
-
- retval = flt_ot_event_run(s, f, chn, event, &err);
-
- FLT_OT_RETURN_INT(flt_ot_return_int(f, &err, retval));
-}
-
-
-/***
- * NAME
- * flt_ot_channel_end_analyze - Called when analyze ends for a given channel.
- *
- * ARGUMENTS
- * s -
- * f -
- * chn -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 if it needs to wait,
- * any other value otherwise.
- */
-static int flt_ot_channel_end_analyze(struct stream *s, struct filter *f, struct channel *chn)
-{
- char *err = NULL;
- int rc, retval;
-
- FLT_OT_FUNC("%p, %p, %p", s, f, chn);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, (chn->flags & CF_ISRESP) ? FLT_OT_EVENT_RES_SERVER_SESS_END : FLT_OT_EVENT_REQ_CLIENT_SESS_END)))
- FLT_OT_RETURN_INT(FLT_OT_RET_OK);
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s)", flt_ot_chn_label(chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s));
-
- if (chn->flags & CF_ISRESP) {
- /* The response channel, event 'on-server-session-end'. */
- retval = flt_ot_event_run(s, f, chn, FLT_OT_EVENT_RES_SERVER_SESS_END, &err);
- } else {
- /* The request channel, event 'on-client-session-end'. */
- retval = flt_ot_event_run(s, f, chn, FLT_OT_EVENT_REQ_CLIENT_SESS_END, &err);
-
- /*
- * In case an event using server response is defined and not
- * executed, event 'on-server-unavailable' is called here.
- */
- if ((FLT_OT_CONF(f)->tracer->analyzers & AN_RES_ALL) && !(FLT_OT_RT_CTX(f->ctx)->analyzers & AN_RES_ALL)) {
- rc = flt_ot_event_run(s, f, chn, FLT_OT_EVENT_REQ_SERVER_UNAVAILABLE, &err);
- if ((retval == FLT_OT_RET_OK) && (rc != FLT_OT_RET_OK))
- retval = rc;
- }
- }
-
- FLT_OT_RETURN_INT(flt_ot_return_int(f, &err, retval));
-}
-
-
-#ifdef DEBUG_OT
-
-/***
- * NAME
- * flt_ot_http_headers -
- *
- * ARGUMENTS
- * s -
- * f -
- * msg -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 if it needs to wait,
- * any other value otherwise.
- */
-static int flt_ot_http_headers(struct stream *s, struct filter *f, struct http_msg *msg)
-{
- char *err = NULL;
- struct htx *htx = htxbuf(&(msg->chn->buf));
- struct htx_sl *sl = http_get_stline(htx);
- int retval = FLT_OT_RET_OK;
-
- FLT_OT_FUNC("%p, %p, %p", s, f, msg);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, -1)))
- FLT_OT_RETURN_INT(retval);
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s), %.*s %.*s %.*s", flt_ot_chn_label(msg->chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s), HTX_SL_P1_LEN(sl), HTX_SL_P1_PTR(sl), HTX_SL_P2_LEN(sl), HTX_SL_P2_PTR(sl), HTX_SL_P3_LEN(sl), HTX_SL_P3_PTR(sl));
-
- FLT_OT_RETURN_INT(flt_ot_return_int(f, &err, retval));
-}
-
-
-/***
- * NAME
- * flt_ot_http_payload -
- *
- * ARGUMENTS
- * s -
- * f -
- * msg -
- * offset -
- * len -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, any other value otherwise.
- */
-static int flt_ot_http_payload(struct stream *s, struct filter *f, struct http_msg *msg, uint offset, uint len)
-{
- char *err = NULL;
- int retval = len;
-
- FLT_OT_FUNC("%p, %p, %p, %u, %u", s, f, msg, offset, len);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, -1)))
- FLT_OT_RETURN_INT(len);
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s), offset: %u, len: %u, forward: %d", flt_ot_chn_label(msg->chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s), offset, len, retval);
-
- if (retval != len)
- task_wakeup(s->task, TASK_WOKEN_MSG);
-
- FLT_OT_RETURN_INT(flt_ot_return_int(f, &err, retval));
-}
-
-
-/***
- * NAME
- * flt_ot_http_end -
- *
- * ARGUMENTS
- * s -
- * f -
- * msg -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 if it needs to wait,
- * any other value otherwise.
- */
-static int flt_ot_http_end(struct stream *s, struct filter *f, struct http_msg *msg)
-{
- char *err = NULL;
- int retval = FLT_OT_RET_OK;
-
- FLT_OT_FUNC("%p, %p, %p", s, f, msg);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, -1)))
- FLT_OT_RETURN_INT(retval);
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s)", flt_ot_chn_label(msg->chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s));
-
- FLT_OT_RETURN_INT(flt_ot_return_int(f, &err, retval));
-}
-
-
-/***
- * NAME
- * flt_ot_http_reset -
- *
- * ARGUMENTS
- * s -
- * f -
- * msg -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void flt_ot_http_reset(struct stream *s, struct filter *f, struct http_msg *msg)
-{
- char *err = NULL;
-
- FLT_OT_FUNC("%p, %p, %p", s, f, msg);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, -1)))
- FLT_OT_RETURN();
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s)", flt_ot_chn_label(msg->chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s));
-
- flt_ot_return_void(f, &err);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_http_reply -
- *
- * ARGUMENTS
- * s -
- * f -
- * status -
- * msg -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void flt_ot_http_reply(struct stream *s, struct filter *f, short status, const struct buffer *msg)
-{
- char *err = NULL;
-
- FLT_OT_FUNC("%p, %p, %hd, %p", s, f, status, msg);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, -1)))
- FLT_OT_RETURN();
-
- FLT_OT_DBG(3, "channel: -, mode: %s (%s)", flt_ot_pr_mode(s), flt_ot_stream_pos(s));
-
- flt_ot_return_void(f, &err);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_tcp_payload -
- *
- * ARGUMENTS
- * s -
- * f -
- * chn -
- * offset -
- * len -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, any other value otherwise.
- */
-static int flt_ot_tcp_payload(struct stream *s, struct filter *f, struct channel *chn, uint offset, uint len)
-{
- char *err = NULL;
- int retval = len;
-
- FLT_OT_FUNC("%p, %p, %p, %u, %u", s, f, chn, offset, len);
-
- if (flt_ot_is_disabled(f FLT_OT_DBG_ARGS(, -1)))
- FLT_OT_RETURN_INT(len);
-
- FLT_OT_DBG(3, "channel: %s, mode: %s (%s), offset: %u, len: %u, forward: %d", flt_ot_chn_label(chn), flt_ot_pr_mode(s), flt_ot_stream_pos(s), offset, len, retval);
-
- if (s->flags & SF_HTX) {
- } else {
- }
-
- if (retval != len)
- task_wakeup(s->task, TASK_WOKEN_MSG);
-
- FLT_OT_RETURN_INT(flt_ot_return_int(f, &err, retval));
-}
-
-#endif /* DEBUG_OT */
-
-
-struct flt_ops flt_ot_ops = {
- /* Callbacks to manage the filter lifecycle. */
- .init = flt_ot_init,
- .deinit = flt_ot_deinit,
- .check = flt_ot_check,
- .init_per_thread = flt_ot_init_per_thread,
- .deinit_per_thread = FLT_OT_DBG_IFDEF(flt_ot_deinit_per_thread, NULL),
-
- /* Stream callbacks. */
- .attach = flt_ot_attach,
- .stream_start = FLT_OT_DBG_IFDEF(flt_ot_stream_start, NULL),
- .stream_set_backend = FLT_OT_DBG_IFDEF(flt_ot_stream_set_backend, NULL),
- .stream_stop = FLT_OT_DBG_IFDEF(flt_ot_stream_stop, NULL),
- .detach = flt_ot_detach,
- .check_timeouts = flt_ot_check_timeouts,
-
- /* Channel callbacks. */
- .channel_start_analyze = flt_ot_channel_start_analyze,
- .channel_pre_analyze = flt_ot_channel_pre_analyze,
- .channel_post_analyze = flt_ot_channel_post_analyze,
- .channel_end_analyze = flt_ot_channel_end_analyze,
-
- /* HTTP callbacks. */
- .http_headers = FLT_OT_DBG_IFDEF(flt_ot_http_headers, NULL),
- .http_payload = FLT_OT_DBG_IFDEF(flt_ot_http_payload, NULL),
- .http_end = FLT_OT_DBG_IFDEF(flt_ot_http_end, NULL),
- .http_reset = FLT_OT_DBG_IFDEF(flt_ot_http_reset, NULL),
- .http_reply = FLT_OT_DBG_IFDEF(flt_ot_http_reply, NULL),
-
- /* TCP callbacks. */
- .tcp_payload = FLT_OT_DBG_IFDEF(flt_ot_tcp_payload, NULL)
-};
-
-
-REGISTER_BUILD_OPTS("Built with OpenTracing support.");
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-#define FLT_OT_GROUP_DEF(a,b,c) { a, b, c },
-const struct flt_ot_group_data flt_ot_group_data[] = { FLT_OT_GROUP_DEFINES };
-#undef FLT_OT_GROUP_DEF
-
-
-/***
- * NAME
- * flt_ot_group_action -
- *
- * ARGUMENTS
- * rule -
- * px -
- * sess -
- * s -
- * opts -
- *
- * DESCRIPTION
- * This is the action_ptr callback of a rule associated to the
- * FLT_OT_ACTION_GROUP action.
- *
- * RETURN VALUE
- * The function returns ACT_RET_CONT if processing is finished (with error or
- * not), otherwise, it returns ACT_RET_YIELD if the action is in progress.
- */
-static enum act_return flt_ot_group_action(struct act_rule *rule, struct proxy *px, struct session *sess, struct stream *s, int opts)
-{
- const struct filter *filter;
- const struct flt_conf *fconf;
- const struct flt_ot_conf *conf;
- const struct flt_ot_conf_group *conf_group;
- const struct flt_ot_runtime_context *rt_ctx = NULL;
- const struct flt_ot_conf_ph *ph_scope;
- char *err = NULL;
- int i, rc;
-
- FLT_OT_FUNC("%p, %p, %p, %p, %d", rule, px, sess, s, opts);
-
- FLT_OT_DBG(3, "from: %d, arg.act %p:{ %p %p %p %p }", rule->from, &(rule->arg.act), rule->arg.act.p[0], rule->arg.act.p[1], rule->arg.act.p[2], rule->arg.act.p[3]);
-
- fconf = rule->arg.act.p[FLT_OT_ARG_FLT_CONF];
- conf = rule->arg.act.p[FLT_OT_ARG_CONF];
- conf_group = ((const struct flt_ot_conf_ph *)(rule->arg.act.p[FLT_OT_ARG_GROUP]))->ptr;
-
- if ((fconf == NULL) || (conf == NULL) || (conf_group == NULL)) {
- FLT_OT_LOG(LOG_ERR, FLT_OT_ACTION_GROUP ": internal error, invalid group action");
-
- FLT_OT_RETURN_EX(ACT_RET_CONT, enum act_return, "%d");
- }
-
- if (conf->tracer->flag_disabled) {
- FLT_OT_DBG(1, "filter '%s' disabled, group action '%s' ignored", conf->id, conf_group->id);
-
- FLT_OT_RETURN_EX(ACT_RET_CONT, enum act_return, "%d");
- }
-
- /* Find the OpenTracing filter instance from the current stream. */
- list_for_each_entry(filter, &(s->strm_flt.filters), list)
- if (filter->config == fconf) {
- rt_ctx = filter->ctx;
-
- break;
- }
-
- if (rt_ctx == NULL) {
- FLT_OT_DBG(1, "cannot find filter, probably not attached to the stream");
-
- FLT_OT_RETURN_EX(ACT_RET_CONT, enum act_return, "%d");
- }
- else if (flt_ot_is_disabled(filter FLT_OT_DBG_ARGS(, -1))) {
- FLT_OT_RETURN_EX(ACT_RET_CONT, enum act_return, "%d");
- }
- else {
- FLT_OT_DBG(3, "run group '%s'", conf_group->id);
- FLT_OT_DBG_CONF_GROUP("run group ", conf_group);
- }
-
- /*
- * Check the value of rule->from; in case it is incorrect,
- * report an error.
- */
- for (i = 0; i < FLT_OT_TABLESIZE(flt_ot_group_data); i++)
- if (flt_ot_group_data[i].act_from == rule->from)
- break;
-
- if (i >= FLT_OT_TABLESIZE(flt_ot_group_data)) {
- FLT_OT_LOG(LOG_ERR, FLT_OT_ACTION_GROUP ": internal error, invalid rule->from=%d", rule->from);
-
- FLT_OT_RETURN_EX(ACT_RET_CONT, enum act_return, "%d");
- }
-
- list_for_each_entry(ph_scope, &(conf_group->ph_scopes), list) {
- rc = flt_ot_scope_run(s, rt_ctx->filter, &(s->res), ph_scope->ptr, NULL, SMP_OPT_DIR_RES, &err);
- if ((rc == FLT_OT_RET_ERROR) && (opts & ACT_OPT_FINAL)) {
- /* XXX */
- }
- }
-
- FLT_OT_RETURN_EX(ACT_RET_CONT, enum act_return, "%d");
-}
-
-
-/***
- * NAME
- * flt_ot_group_check -
- *
- * ARGUMENTS
- * rule -
- * px -
- * err -
- *
- * DESCRIPTION
- * This is the check_ptr callback of a rule associated to the
- * FLT_OT_ACTION_GROUP action.
- *
- * RETURN VALUE
- * The function returns 1 in success case, otherwise,
- * it returns 0 and err is filled.
- */
-static int flt_ot_group_check(struct act_rule *rule, struct proxy *px, char **err)
-{
- struct flt_conf *fconf_tmp, *fconf = NULL;
- struct flt_ot_conf *conf;
- struct flt_ot_conf_ph *ph_group;
- const char *filter_id;
- const char *group_id;
- bool flag_found = 0;
- int i;
-
- FLT_OT_FUNC("%p, %p, %p:%p", rule, px, FLT_OT_DPTR_ARGS(err));
-
- filter_id = rule->arg.act.p[FLT_OT_ARG_FILTER_ID];
- group_id = rule->arg.act.p[FLT_OT_ARG_GROUP_ID];
-
- FLT_OT_DBG(2, "checking filter_id='%s', group_id='%s'", filter_id, group_id);
-
- /*
- * Check the value of rule->from; in case it is incorrect,
- * report an error.
- */
- for (i = 0; i < FLT_OT_TABLESIZE(flt_ot_group_data); i++)
- if (flt_ot_group_data[i].act_from == rule->from)
- break;
-
- if (i >= FLT_OT_TABLESIZE(flt_ot_group_data)) {
- FLT_OT_ERR("internal error, unexpected rule->from=%d, please report this bug!", rule->from);
-
- FLT_OT_RETURN_INT(0);
- }
-
- /*
- * Try to find the OpenTracing filter by checking all filters
- * for the proxy <px>.
- */
- list_for_each_entry(fconf_tmp, &(px->filter_configs), list) {
- conf = fconf_tmp->conf;
-
- if (fconf_tmp->id != ot_flt_id) {
- /* This is not an OpenTracing filter. */
- continue;
- }
- else if (strcmp(conf->id, filter_id) == 0) {
- /* This is the good filter ID. */
- fconf = fconf_tmp;
-
- break;
- }
- }
-
- if (fconf == NULL) {
- FLT_OT_ERR("unable to find the OpenTracing filter '%s' used by the " FLT_OT_ACTION_GROUP " '%s'", filter_id, group_id);
-
- FLT_OT_RETURN_INT(0);
- }
-
- /*
- * Attempt to find if the group is defined in the OpenTracing filter
- * configuration.
- */
- list_for_each_entry(ph_group, &(conf->tracer->ph_groups), list)
- if (strcmp(ph_group->id, group_id) == 0) {
- flag_found = 1;
-
- break;
- }
-
- if (!flag_found) {
- FLT_OT_ERR("unable to find group '%s' in the OpenTracing filter '%s' configuration", group_id, filter_id);
-
- FLT_OT_RETURN_INT(0);
- }
-
- FLT_OT_FREE_CLEAR(rule->arg.act.p[FLT_OT_ARG_FILTER_ID]);
- FLT_OT_FREE_CLEAR(rule->arg.act.p[FLT_OT_ARG_GROUP_ID]);
-
- rule->arg.act.p[FLT_OT_ARG_FLT_CONF] = fconf;
- rule->arg.act.p[FLT_OT_ARG_CONF] = conf;
- rule->arg.act.p[FLT_OT_ARG_GROUP] = ph_group;
-
- FLT_OT_RETURN_INT(1);
-}
-
-
-/***
- * NAME
- * flt_ot_group_release -
- *
- * ARGUMENTS
- * rule -
- *
- * DESCRIPTION
- * This is the release_ptr callback of a rule associated to the
- * FLT_OT_ACTION_GROUP action.
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void flt_ot_group_release(struct act_rule *rule)
-{
- FLT_OT_FUNC("%p", rule);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_group_parse -
- *
- * ARGUMENTS
- * args -
- * cur_arg -
- * px -
- * rule -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ACT_RET_PRS_ERR if an error occurs, ACT_RET_PRS_OK otherwise.
- */
-static enum act_parse_ret flt_ot_group_parse(const char **args, int *cur_arg, struct proxy *px, struct act_rule *rule, char **err)
-{
- FLT_OT_FUNC("%p, %p, %p, %p, %p:%p", args, cur_arg, px, rule, FLT_OT_DPTR_ARGS(err));
-
- if (!FLT_OT_ARG_ISVALID(*cur_arg) ||
- !FLT_OT_ARG_ISVALID(*cur_arg + 1) ||
- (FLT_OT_ARG_ISVALID(*cur_arg + 2) &&
- (strcmp(args[*cur_arg + 2], FLT_OT_CONDITION_IF) != 0) &&
- (strcmp(args[*cur_arg + 2], FLT_OT_CONDITION_UNLESS) != 0))) {
- FLT_OT_ERR("expects: <filter-id> <group-id> [{ if | unless } ...]");
-
- FLT_OT_RETURN_EX(ACT_RET_PRS_ERR, enum act_parse_ret, "%d");
- }
-
- /* Copy the OpenTracing filter id. */
- rule->arg.act.p[FLT_OT_ARG_FILTER_ID] = FLT_OT_STRDUP(args[*cur_arg]);
- if (rule->arg.act.p[FLT_OT_ARG_FILTER_ID] == NULL) {
- FLT_OT_ERR("%s : out of memory", args[*cur_arg]);
-
- FLT_OT_RETURN_EX(ACT_RET_PRS_ERR, enum act_parse_ret, "%d");
- }
-
- /* Copy the OpenTracing group id. */
- rule->arg.act.p[FLT_OT_ARG_GROUP_ID] = FLT_OT_STRDUP(args[*cur_arg + 1]);
- if (rule->arg.act.p[FLT_OT_ARG_GROUP_ID] == NULL) {
- FLT_OT_ERR("%s : out of memory", args[*cur_arg + 1]);
-
- FLT_OT_FREE_CLEAR(rule->arg.act.p[FLT_OT_ARG_FILTER_ID]);
-
- FLT_OT_RETURN_EX(ACT_RET_PRS_ERR, enum act_parse_ret, "%d");
- }
-
- rule->action = ACT_CUSTOM;
- rule->action_ptr = flt_ot_group_action;
- rule->check_ptr = flt_ot_group_check;
- rule->release_ptr = flt_ot_group_release;
-
- *cur_arg += 2;
-
- FLT_OT_RETURN_EX(ACT_RET_PRS_OK, enum act_parse_ret, "%d");
-}
-
-
-static struct action_kw_list tcp_req_action_kws = { ILH, {
- { FLT_OT_ACTION_GROUP, flt_ot_group_parse },
- { /* END */ },
- }
-};
-
-INITCALL1(STG_REGISTER, tcp_req_cont_keywords_register, &tcp_req_action_kws);
-
-static struct action_kw_list tcp_res_action_kws = { ILH, {
- { FLT_OT_ACTION_GROUP, flt_ot_group_parse },
- { /* END */ },
- }
-};
-
-INITCALL1(STG_REGISTER, tcp_res_cont_keywords_register, &tcp_res_action_kws);
-
-static struct action_kw_list http_req_action_kws = { ILH, {
- { FLT_OT_ACTION_GROUP, flt_ot_group_parse },
- { /* END */ },
- }
-};
-
-INITCALL1(STG_REGISTER, http_req_keywords_register, &http_req_action_kws);
-
-static struct action_kw_list http_res_action_kws = { ILH, {
- { FLT_OT_ACTION_GROUP, flt_ot_group_parse },
- { /* END */ },
- }
-};
-
-INITCALL1(STG_REGISTER, http_res_keywords_register, &http_res_action_kws);
-
-static struct action_kw_list http_after_res_actions_kws = { ILH, {
- { FLT_OT_ACTION_GROUP, flt_ot_group_parse },
- { /* END */ },
- }
-};
-
-INITCALL1(STG_REGISTER, http_after_res_keywords_register, &http_after_res_actions_kws);
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-#ifdef DEBUG_OT
-
-/***
- * NAME
- * flt_ot_http_headers_dump -
- *
- * ARGUMENTS
- * chn -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_http_headers_dump(const struct channel *chn)
-{
- const struct htx *htx;
- int32_t pos;
-
- FLT_OT_FUNC("%p", chn);
-
- if (chn == NULL)
- FLT_OT_RETURN();
-
- htx = htxbuf(&(chn->buf));
-
- if (htx_is_empty(htx))
- FLT_OT_RETURN();
-
- for (pos = htx_get_first(htx); pos != -1; pos = htx_get_next(htx, pos)) {
- struct htx_blk *blk = htx_get_blk(htx, pos);
- enum htx_blk_type type = htx_get_blk_type(blk);
-
- if (type == HTX_BLK_HDR) {
- struct ist n = htx_get_blk_name(htx, blk);
- struct ist v = htx_get_blk_value(htx, blk);
-
- FLT_OT_DBG(2, "'%.*s: %.*s'", (int)n.len, n.ptr, (int)v.len, v.ptr);
- }
- else if (type == HTX_BLK_EOH)
- break;
- }
-
- FLT_OT_RETURN();
-}
-
-#endif /* DEBUG_OT */
-
-
-/***
- * NAME
- * flt_ot_http_headers_get -
- *
- * ARGUMENTS
- * chn -
- * prefix -
- * len -
- * err -
- *
- * DESCRIPTION
- * This function is very similar to function http_action_set_header(), from
- * the HAProxy source.
- *
- * RETURN VALUE
- * -
- */
-struct otc_text_map *flt_ot_http_headers_get(struct channel *chn, const char *prefix, size_t len, char **err)
-{
- const struct htx *htx;
- size_t prefix_len = (!FLT_OT_STR_ISVALID(prefix) || (len == 0)) ? 0 : (len + 1);
- int32_t pos;
- struct otc_text_map *retptr = NULL;
-
- FLT_OT_FUNC("%p, \"%s\", %zu, %p:%p", chn, prefix, len, FLT_OT_DPTR_ARGS(err));
-
- if (chn == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- /*
- * The keyword 'inject' allows you to define the name of the OpenTracing
- * context without using a prefix. In that case all HTTP headers are
- * transferred because it is not possible to separate them from the
- * OpenTracing context (this separation is usually done via a prefix).
- *
- * When using the 'extract' keyword, the context name must be specified.
- * To allow all HTTP headers to be extracted, the first character of
- * that name must be set to FLT_OT_PARSE_CTX_IGNORE_NAME.
- */
- if (FLT_OT_STR_ISVALID(prefix) && (*prefix == FLT_OT_PARSE_CTX_IGNORE_NAME))
- prefix_len = 0;
-
- htx = htxbuf(&(chn->buf));
-
- for (pos = htx_get_first(htx); pos != -1; pos = htx_get_next(htx, pos)) {
- struct htx_blk *blk = htx_get_blk(htx, pos);
- enum htx_blk_type type = htx_get_blk_type(blk);
-
- if (type == HTX_BLK_HDR) {
- struct ist v, n = htx_get_blk_name(htx, blk);
-
- if ((prefix_len == 0) || ((n.len >= prefix_len) && (strncasecmp(n.ptr, prefix, len) == 0))) {
- if (retptr == NULL) {
- retptr = otc_text_map_new(NULL, 8);
- if (retptr == NULL) {
- FLT_OT_ERR("failed to create HTTP header data");
-
- break;
- }
- }
-
- v = htx_get_blk_value(htx, blk);
-
- /*
- * In case the data of the HTTP header is not
- * specified, v.ptr will have some non-null
- * value and v.len will be equal to 0. The
- * otc_text_map_add() function will not
- * interpret this well. In this case v.ptr
- * is set to an empty string.
- */
- if (v.len == 0)
- v = ist("");
-
- /*
- * Here, an HTTP header (which is actually part
- * of the span context is added to the text_map.
- *
- * Before adding, the prefix is removed from the
- * HTTP header name.
- */
- if (otc_text_map_add(retptr, n.ptr + prefix_len, n.len - prefix_len, v.ptr, v.len, OTC_TEXT_MAP_DUP_KEY | OTC_TEXT_MAP_DUP_VALUE) == -1) {
- FLT_OT_ERR("failed to add HTTP header data");
-
- otc_text_map_destroy(&retptr, OTC_TEXT_MAP_FREE_KEY | OTC_TEXT_MAP_FREE_VALUE);
-
- break;
- }
- }
- }
- else if (type == HTX_BLK_EOH)
- break;
- }
-
- ot_text_map_show(retptr);
-
- if ((retptr != NULL) && (retptr->count == 0)) {
- FLT_OT_DBG(2, "WARNING: no HTTP headers found");
-
- otc_text_map_destroy(&retptr, OTC_TEXT_MAP_FREE_KEY | OTC_TEXT_MAP_FREE_VALUE);
- }
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_http_header_set -
- *
- * ARGUMENTS
- * chn -
- * prefix -
- * name -
- * value -
- * err -
- *
- * DESCRIPTION
- * This function is very similar to function http_action_set_header(), from
- * the HAProxy source.
- *
- * RETURN VALUE
- * -
- */
-int flt_ot_http_header_set(struct channel *chn, const char *prefix, const char *name, const char *value, char **err)
-{
- struct http_hdr_ctx ctx = { .blk = NULL };
- struct ist ist_name;
- struct buffer *buffer = NULL;
- struct htx *htx;
- int retval = -1;
-
- FLT_OT_FUNC("%p, \"%s\", \"%s\", \"%s\", %p:%p", chn, prefix, name, value, FLT_OT_DPTR_ARGS(err));
-
- if ((chn == NULL) || (!FLT_OT_STR_ISVALID(prefix) && !FLT_OT_STR_ISVALID(name)))
- FLT_OT_RETURN_INT(retval);
-
- htx = htxbuf(&(chn->buf));
-
- /*
- * Very rare (about 1% of cases), htx is empty.
- * In order to avoid segmentation fault, we exit this function.
- */
- if (htx_is_empty(htx)) {
- FLT_OT_ERR("HTX is empty");
-
- FLT_OT_RETURN_INT(retval);
- }
-
- if (!FLT_OT_STR_ISVALID(prefix)) {
- ist_name = ist2((char *)name, strlen(name));
- }
- else if (!FLT_OT_STR_ISVALID(name)) {
- ist_name = ist2((char *)prefix, strlen(prefix));
- }
- else {
- buffer = flt_ot_trash_alloc(0, err);
- if (buffer == NULL)
- FLT_OT_RETURN_INT(retval);
-
- (void)chunk_printf(buffer, "%s-%s", prefix, name);
-
- ist_name = ist2(buffer->area, buffer->data);
- }
-
- /* Remove all occurrences of the header. */
- while (http_find_header(htx, ist(""), &ctx, 1) == 1) {
- struct ist n = htx_get_blk_name(htx, ctx.blk);
-#ifdef DEBUG_OT
- struct ist v = htx_get_blk_value(htx, ctx.blk);
-#endif
-
- /*
- * If the <name> parameter is not set, then remove all headers
- * that start with the contents of the <prefix> parameter.
- */
- if (!FLT_OT_STR_ISVALID(name))
- n.len = ist_name.len;
-
- if (isteqi(n, ist_name))
- if (http_remove_header(htx, &ctx) == 1)
- FLT_OT_DBG(3, "HTTP header '%.*s: %.*s' removed", (int)n.len, n.ptr, (int)v.len, v.ptr);
- }
-
- /*
- * If the value pointer has a value of NULL, the HTTP header is not set
- * after deletion.
- */
- if (value == NULL) {
- /* Do nothing. */
- }
- else if (http_add_header(htx, ist_name, ist(value), 1) == 1) {
- retval = 0;
-
- FLT_OT_DBG(3, "HTTP header '%s: %s' added", ist_name.ptr, value);
- }
- else {
- FLT_OT_ERR("failed to set HTTP header '%s: %s'", ist_name.ptr, value);
- }
-
- flt_ot_trash_free(&buffer);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_http_headers_remove -
- *
- * ARGUMENTS
- * chn -
- * prefix -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int flt_ot_http_headers_remove(struct channel *chn, const char *prefix, char **err)
-{
- int retval;
-
- FLT_OT_FUNC("%p, \"%s\", %p:%p", chn, prefix, FLT_OT_DPTR_ARGS(err));
-
- retval = flt_ot_http_header_set(chn, prefix, NULL, NULL, err);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-static struct pool_head *pool_head_ot_span_context __read_mostly = NULL;
-
-#ifdef USE_POOL_OT_SPAN_CONTEXT
-REGISTER_POOL(&pool_head_ot_span_context, "ot_span_context", MAX(sizeof(struct otc_span), sizeof(struct otc_span_context)));
-#endif
-
-
-#ifdef DEBUG_OT
-
-/***
- * NAME
- * ot_text_map_show -
- *
- * ARGUMENTS
- * text_map -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void ot_text_map_show(const struct otc_text_map *text_map)
-{
- FLT_OT_FUNC("%p", text_map);
-
- if (text_map == NULL)
- FLT_OT_RETURN();
-
- FLT_OT_DBG_TEXT_MAP(text_map);
-
- if ((text_map->key != NULL) && (text_map->value != NULL) && (text_map->count > 0)) {
- size_t i;
-
- for (i = 0; i < text_map->count; i++)
- FLT_OT_DBG(3, " \"%s\" -> \"%s\"", text_map->key[i], text_map->value[i]);
- }
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * ot_debug -
- *
- * ARGUMENTS
- * This function takes no arguments.
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void ot_debug(void)
-{
- char buffer[BUFSIZ];
-
- FLT_OT_FUNC("");
-
- otc_statistics(buffer, sizeof(buffer));
- FLT_OT_DBG(0, "%s", buffer);
-
- FLT_OT_RETURN();
-}
-
-#endif /* DEBUG_OT */
-
-
-/***
- * NAME
- * ot_mem_malloc -
- *
- * ARGUMENTS
- * func -
- * line -
- * size -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static void *ot_mem_malloc(FLT_OT_DBG_ARGS(const char *func, int line, ) size_t size)
-{
- return flt_ot_pool_alloc(pool_head_ot_span_context, size, 1, NULL);
-}
-
-
-/***
- * NAME
- * ot_mem_free -
- *
- * ARGUMENTS
- * func -
- * line -
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void ot_mem_free(FLT_OT_DBG_ARGS(const char *func, int line, ) void *ptr)
-{
- flt_ot_pool_free(pool_head_ot_span_context, &ptr);
-}
-
-
-/***
- * NAME
- * ot_init -
- *
- * ARGUMENTS
- * tracer -
- * plugin -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int ot_init(struct otc_tracer **tracer, const char *plugin, char **err)
-{
- char cwd[PATH_MAX], path[PATH_MAX], errbuf[BUFSIZ] = "";
- int rc, retval = -1;
-
- FLT_OT_FUNC("%p:%p, \"%s\", %p:%p", FLT_OT_DPTR_ARGS(tracer), plugin, FLT_OT_DPTR_ARGS(err));
-
- flt_ot_pools_info();
-#ifdef USE_POOL_OT_SPAN_CONTEXT
- FLT_OT_DBG(2, "sizeof_pool(ot_span_context) = %u", pool_head_ot_span_context->size);
-#endif
-
- if (getcwd(cwd, sizeof(cwd)) == NULL) {
- FLT_OT_ERR("failed to get current working directory");
-
- FLT_OT_RETURN_INT(retval);
- }
- rc = snprintf(path, sizeof(path), "%s/%s", cwd, plugin);
- if ((rc == -1) || (rc >= sizeof(path))) {
- FLT_OT_ERR("failed to construct the OpenTracing plugin path");
-
- FLT_OT_RETURN_INT(retval);
- }
-
- *tracer = otc_tracer_load(path, errbuf, sizeof(errbuf));
- if (*tracer == NULL) {
- FLT_OT_ERR("%s", (*errbuf == '\0') ? "failed to initialize tracing library" : errbuf);
- } else {
- otc_ext_init(ot_mem_malloc, ot_mem_free);
-
- retval = 0;
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * ot_start -
- *
- * ARGUMENTS
- * tracer -
- * cfgbuf -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-int ot_start(struct otc_tracer *tracer, const char *cfgbuf, char **err)
-{
- char errbuf[BUFSIZ] = "";
- int retval = -1;
-
- FLT_OT_FUNC("%p, %p, %p:%p", tracer, cfgbuf, FLT_OT_DPTR_ARGS(err));
-
- if (cfgbuf == NULL)
- FLT_OT_RETURN_INT(retval);
-
- retval = otc_tracer_start(NULL, cfgbuf, errbuf, sizeof(errbuf));
- if (retval == -1)
- FLT_OT_ERR("%s", (*errbuf == '\0') ? "failed to start tracer" : errbuf);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * ot_close -
- *
- * ARGUMENTS
- * tracer -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void ot_close(struct otc_tracer **tracer)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(tracer));
-
- if ((tracer == NULL) || (*tracer == NULL))
- FLT_OT_RETURN();
-
- (*tracer)->close(*tracer);
-
- *tracer = NULL;
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * ot_span_init -
- *
- * ARGUMENTS
- * tracer -
- * operation_name -
- * ts_steady -
- * ts_system -
- * ref_type -
- * ref_ctx_idx -
- * ref_span -
- * tags -
- * num_tags -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct otc_span *ot_span_init(struct otc_tracer *tracer, const char *operation_name, const struct timespec *ts_steady, const struct timespec *ts_system, int ref_type, int ref_ctx_idx, const struct otc_span *ref_span, const struct otc_tag *tags, int num_tags, char **err)
-{
- struct otc_start_span_options options;
- struct otc_span_context context = { .idx = ref_ctx_idx, .span = ref_span };
- struct otc_span_reference references = { ref_type, &context };
- struct otc_span *retptr = NULL;
-
- FLT_OT_FUNC("%p, \"%s\", %p, %p, %d, %d, %p, %p, %d, %p:%p", tracer, operation_name, ts_steady, ts_system, ref_type, ref_ctx_idx, ref_span, tags, num_tags, FLT_OT_DPTR_ARGS(err));
-
- if (operation_name == NULL)
- FLT_OT_RETURN_PTR(retptr);
- else if (tracer == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- (void)memset(&options, 0, sizeof(options));
-
- if (ts_steady != NULL)
- (void)memcpy(&(options.start_time_steady.value), ts_steady, sizeof(options.start_time_steady.value));
-
- if (ts_system != NULL)
- (void)memcpy(&(options.start_time_system.value), ts_system, sizeof(options.start_time_system.value));
-
- if (FLT_OT_IN_RANGE(ref_type, otc_span_reference_child_of, otc_span_reference_follows_from)) {
- options.references = &references;
- options.num_references = 1;
- }
-
- options.tags = tags;
- options.num_tags = num_tags;
-
- retptr = tracer->start_span_with_options(tracer, operation_name, &options);
- if (retptr == NULL)
- FLT_OT_ERR("failed to init new span");
- else
- FLT_OT_DBG(2, "span %p:%zd initialized", retptr, retptr->idx);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * ot_span_init_va -
- *
- * ARGUMENTS
- * tracer -
- * operation_name -
- * ts_steady -
- * ts_system -
- * ref_type -
- * ref_ctx_idx -
- * ref_span -
- * err -
- * tag_key -
- * tag_value -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct otc_span *ot_span_init_va(struct otc_tracer *tracer, const char *operation_name, const struct timespec *ts_steady, const struct timespec *ts_system, int ref_type, int ref_ctx_idx, const struct otc_span *ref_span, char **err, const char *tag_key, const char *tag_value, ...)
-{
- struct otc_tag tags[FLT_OT_MAXTAGS];
- int num_tags = 0;
- struct otc_span *retptr;
-
- FLT_OT_FUNC("%p, \"%s\", %p, %p, %d, %d, %p, %p:%p, \"%s\", \"%s\", ...", tracer, operation_name, ts_steady, ts_system, ref_type, ref_ctx_idx, ref_span, FLT_OT_DPTR_ARGS(err), tag_key, tag_value);
-
- if (tag_key != NULL) {
- va_list ap;
-
- va_start(ap, tag_value);
- for (num_tags = 0; (num_tags < FLT_OT_TABLESIZE(tags)) && (tag_key != NULL) && (tag_value != NULL); num_tags++) {
- tags[num_tags].key = (char *)tag_key;
- FLT_OT_VSET(&(tags[num_tags].value), string, tag_value);
-
- tag_key = va_arg(ap, typeof(tag_key));
- if (tag_key != NULL)
- tag_value = va_arg(ap, typeof(tag_value));
- }
- va_end(ap);
- }
-
- retptr = ot_span_init(tracer, operation_name, ts_steady, ts_system, ref_type, ref_ctx_idx, ref_span, tags, num_tags, err);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * ot_span_tag -
- *
- * ARGUMENTS
- * span -
- * tags -
- * num_tags -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int ot_span_tag(struct otc_span *span, const struct otc_tag *tags, int num_tags)
-{
- int retval = -1;
-
- FLT_OT_FUNC("%p, %p, %d", span, tags, num_tags);
-
- if ((span == NULL) || (tags == NULL))
- FLT_OT_RETURN_INT(retval);
-
- for (retval = 0; retval < num_tags; retval++)
- span->set_tag(span, tags[retval].key, &(tags[retval].value));
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * ot_span_tag_va -
- *
- * ARGUMENTS
- * span -
- * key -
- * type -
- * value -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int ot_span_tag_va(struct otc_span *span, const char *key, int type, ...)
-{
- va_list ap;
- struct otc_value ot_value;
- int retval = -1;
-
- FLT_OT_FUNC("%p, \"%s\", %d, ...", span, key, type);
-
- if ((span == NULL) || (key == NULL))
- FLT_OT_RETURN_INT(retval);
-
- va_start(ap, type);
- for (retval = 0; (key != NULL) && FLT_OT_IN_RANGE(type, otc_value_bool, otc_value_null); retval++) {
- ot_value.type = type;
- if (type == otc_value_bool)
- ot_value.value.bool_value = va_arg(ap, typeof(ot_value.value.bool_value));
- else if (type == otc_value_double)
- ot_value.value.double_value = va_arg(ap, typeof(ot_value.value.double_value));
- else if (type == otc_value_int64)
- ot_value.value.int64_value = va_arg(ap, typeof(ot_value.value.int64_value));
- else if (type == otc_value_uint64)
- ot_value.value.uint64_value = va_arg(ap, typeof(ot_value.value.uint64_value));
- else if (type == otc_value_string)
- ot_value.value.string_value = va_arg(ap, typeof(ot_value.value.string_value));
- else if (type == otc_value_null)
- ot_value.value.string_value = va_arg(ap, typeof(ot_value.value.string_value));
- span->set_tag(span, key, &ot_value);
-
- key = va_arg(ap, typeof(key));
- if (key != NULL)
- type = va_arg(ap, typeof(type));
- }
- va_end(ap);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * ot_span_log -
- *
- * ARGUMENTS
- * span -
- * log_fields -
- * num_fields -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int ot_span_log(struct otc_span *span, const struct otc_log_field *log_fields, int num_fields)
-{
- int retval = -1;
-
- FLT_OT_FUNC("%p, %p, %d", span, log_fields, num_fields);
-
- if ((span == NULL) || (log_fields == NULL))
- FLT_OT_RETURN_INT(retval);
-
- retval = MIN(OTC_MAXLOGFIELDS, num_fields);
-
- span->log_fields(span, log_fields, retval);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * ot_span_log_va -
- *
- * ARGUMENTS
- * span -
- * key -
- * value -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int ot_span_log_va(struct otc_span *span, const char *key, const char *value, ...)
-{
- va_list ap;
- struct otc_log_field log_field[OTC_MAXLOGFIELDS];
- int retval = -1;
-
- FLT_OT_FUNC("%p, \"%s\", \"%s\", ...", span, key, value);
-
- if ((span == NULL) || (key == NULL) || (value == NULL))
- FLT_OT_RETURN_INT(retval);
-
- va_start(ap, value);
- for (retval = 0; (retval < FLT_OT_TABLESIZE(log_field)) && (key != NULL); retval++) {
- log_field[retval].key = key;
- log_field[retval].value.type = otc_value_string;
- log_field[retval].value.value.string_value = value;
-
- key = va_arg(ap, typeof(key));
- if (key != NULL)
- value = va_arg(ap, typeof(value));
- }
- va_end(ap);
-
- span->log_fields(span, log_field, retval);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * ot_span_log_fmt -
- *
- * ARGUMENTS
- * span -
- * key -
- * format -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int ot_span_log_fmt(struct otc_span *span, const char *key, const char *format, ...)
-{
- va_list ap;
- char value[BUFSIZ];
- int n;
-
- FLT_OT_FUNC("%p, \"%s\", \"%s\", ...", span, key, format);
-
- if ((span == NULL) || (key == NULL) || (format == NULL))
- FLT_OT_RETURN_INT(-1);
-
- va_start(ap, format);
- n = vsnprintf(value, sizeof(value), format, ap);
- if (!FLT_OT_IN_RANGE(n, 0, sizeof(value) - 1)) {
- FLT_OT_DBG(2, "WARNING: log buffer too small (%d > %zu)", n, sizeof(value));
-
- FLT_OT_STR_ELLIPSIS(value, sizeof(value));
- }
- va_end(ap);
-
- FLT_OT_RETURN_INT(ot_span_log_va(span, key, value, NULL));
-}
-
-
-/***
- * NAME
- * ot_span_set_baggage -
- *
- * ARGUMENTS
- * span -
- * baggage -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int ot_span_set_baggage(struct otc_span *span, const struct otc_text_map *baggage)
-{
- size_t i;
- int retval = -1;
-
- FLT_OT_FUNC("%p, %p", span, baggage);
-
- if ((span == NULL) || (baggage == NULL))
- FLT_OT_RETURN_INT(retval);
-
- if ((baggage->key == NULL) || (baggage->value == NULL))
- FLT_OT_RETURN_INT(retval);
-
- for (retval = i = 0; i < baggage->count; i++) {
- FLT_OT_DBG(3, "set baggage: \"%s\" -> \"%s\"", baggage->key[i], baggage->value[i]);
-
- if ((baggage->key[i] != NULL) && (baggage->value[i] != NULL)) {
- span->set_baggage_item(span, baggage->key[i], baggage->value[i]);
-
- retval++;
- }
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * ot_span_set_baggage_va -
- *
- * ARGUMENTS
- * span -
- * key -
- * value -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int ot_span_set_baggage_va(struct otc_span *span, const char *key, const char *value, ...)
-{
- va_list ap;
- int retval = -1;
-
- FLT_OT_FUNC("%p, \"%s\", \"%s\", ...", span, key, value);
-
- if ((span == NULL) || (key == NULL) || (value == NULL))
- FLT_OT_RETURN_INT(retval);
-
- va_start(ap, value);
- for (retval = 0; (key != NULL); retval++) {
- FLT_OT_DBG(3, "set baggage: \"%s\" -> \"%s\"", key, value);
-
- span->set_baggage_item(span, key, value);
-
- key = va_arg(ap, typeof(key));
- if (key != NULL)
- value = va_arg(ap, typeof(value));
- }
- va_end(ap);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * ot_span_baggage_va -
- *
- * ARGUMENTS
- * span -
- * key -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct otc_text_map *ot_span_baggage_va(const struct otc_span *span, const char *key, ...)
-{
- va_list ap;
- struct otc_text_map *retptr = NULL;
- int i, n;
-
- FLT_OT_FUNC("%p, \"%s\", ...", span, key);
-
- if ((span == NULL) || (key == NULL))
- FLT_OT_RETURN_PTR(retptr);
-
- va_start(ap, key);
- for (n = 1; va_arg(ap, typeof(key)) != NULL; n++);
- va_end(ap);
-
- retptr = otc_text_map_new(NULL, n);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- va_start(ap, key);
- for (i = 0; (i < n) && (key != NULL); i++) {
- char *value = (char *)span->baggage_item(span, key);
-
- if (value != NULL) {
- (void)otc_text_map_add(retptr, key, 0, value, 0, OTC_TEXT_MAP_DUP_KEY | OTC_TEXT_MAP_DUP_VALUE);
-
- FLT_OT_DBG(3, "get baggage[%d]: \"%s\" -> \"%s\"", i, retptr->key[i], retptr->value[i]);
- } else {
- FLT_OT_DBG(3, "get baggage[%d]: \"%s\" -> invalid key", i, key);
- }
-
- key = va_arg(ap, typeof(key));
- }
- va_end(ap);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * ot_inject_text_map -
- *
- * ARGUMENTS
- * tracer -
- * span -
- * carrier -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct otc_span_context *ot_inject_text_map(struct otc_tracer *tracer, const struct otc_span *span, struct otc_text_map_writer *carrier)
-{
- struct otc_span_context *retptr = NULL;
- int rc;
-
- FLT_OT_FUNC("%p, %p, %p", tracer, span, carrier);
-
- if ((span == NULL) || (carrier == NULL))
- FLT_OT_RETURN_PTR(retptr);
- else if (tracer == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- retptr = span->span_context((struct otc_span *)span);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- (void)memset(carrier, 0, sizeof(*carrier));
-
- rc = tracer->inject_text_map(tracer, carrier, retptr);
- if (rc != otc_propagation_error_code_success) {
- FLT_OT_FREE_CLEAR(retptr);
- } else {
-#ifdef DEBUG_OT
- FLT_OT_DBG_TEXT_CARRIER(carrier, set);
- ot_text_map_show(&(carrier->text_map));
- FLT_OT_DBG_SPAN_CONTEXT(retptr);
-#endif
- }
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * ot_inject_http_headers -
- *
- * ARGUMENTS
- * tracer -
- * span -
- * carrier -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct otc_span_context *ot_inject_http_headers(struct otc_tracer *tracer, const struct otc_span *span, struct otc_http_headers_writer *carrier, char **err)
-{
- struct otc_span_context *retptr = NULL;
- int rc;
-
- FLT_OT_FUNC("%p, %p, %p, %p:%p", tracer, span, carrier, FLT_OT_DPTR_ARGS(err));
-
- if ((span == NULL) || (carrier == NULL))
- FLT_OT_RETURN_PTR(retptr);
- else if (tracer == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- retptr = span->span_context((struct otc_span *)span);
- if (retptr == NULL) {
- FLT_OT_ERR("failed to create span context");
-
- FLT_OT_RETURN_PTR(retptr);
- }
-
- (void)memset(carrier, 0, sizeof(*carrier));
-
- rc = tracer->inject_http_headers(tracer, carrier, retptr);
- if (rc != otc_propagation_error_code_success) {
- FLT_OT_ERR("failed to inject HTTP headers data");
-
- FLT_OT_FREE_CLEAR(retptr);
- } else {
-#ifdef DEBUG_OT
- FLT_OT_DBG_TEXT_CARRIER(carrier, set);
- ot_text_map_show(&(carrier->text_map));
- FLT_OT_DBG_SPAN_CONTEXT(retptr);
-#endif
- }
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * ot_inject_binary -
- *
- * ARGUMENTS
- * tracer -
- * span -
- * carrier -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct otc_span_context *ot_inject_binary(struct otc_tracer *tracer, const struct otc_span *span, struct otc_custom_carrier_writer *carrier)
-{
- struct otc_span_context *retptr = NULL;
- int rc;
-
- FLT_OT_FUNC("%p, %p, %p", tracer, span, carrier);
-
- if ((span == NULL) || (carrier == NULL))
- FLT_OT_RETURN_PTR(retptr);
- else if (tracer == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- retptr = span->span_context((struct otc_span *)span);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- (void)memset(carrier, 0, sizeof(*carrier));
-
- rc = tracer->inject_binary(tracer, carrier, retptr);
- if (rc != otc_propagation_error_code_success) {
- FLT_OT_FREE_CLEAR(retptr);
- } else {
-#ifdef DEBUG_OT
- struct otc_jaeger_trace_context *ctx = carrier->binary_data.data;
-
- FLT_OT_DBG_CUSTOM_CARRIER(carrier, inject);
- FLT_OT_DBG(3, "trace context: %016" PRIx64 "%016" PRIx64 ":%016" PRIx64 ":%016" PRIx64 ":%02hhx <%s> <%s>",
- ctx->trace_id[0], ctx->trace_id[1], ctx->span_id, ctx->parent_span_id, ctx->flags,
- flt_ot_str_hex(ctx->baggage, carrier->binary_data.size - sizeof(*ctx)),
- flt_ot_str_ctrl(ctx->baggage, carrier->binary_data.size - sizeof(*ctx)));
- FLT_OT_DBG_SPAN_CONTEXT(retptr);
-#endif
- }
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * ot_extract_text_map -
- *
- * ARGUMENTS
- * tracer -
- * carrier -
- * text_map -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct otc_span_context *ot_extract_text_map(struct otc_tracer *tracer, struct otc_text_map_reader *carrier, const struct otc_text_map *text_map)
-{
- struct otc_span_context *retptr = NULL;
- int rc;
-
- FLT_OT_FUNC("%p, %p, %p", tracer, carrier, text_map);
-
- if (carrier == NULL)
- FLT_OT_RETURN_PTR(retptr);
- else if (tracer == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- if (text_map != NULL) {
- (void)memset(carrier, 0, sizeof(*carrier));
- (void)memcpy(&(carrier->text_map), text_map, sizeof(carrier->text_map));
-
- FLT_OT_DBG_TEXT_CARRIER(carrier, foreach_key);
- }
-
- rc = tracer->extract_text_map(tracer, carrier, &retptr);
- if (rc != otc_propagation_error_code_success)
- FLT_OT_FREE_CLEAR(retptr);
- else if (retptr != NULL)
- FLT_OT_DBG_SPAN_CONTEXT(retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * ot_extract_http_headers -
- *
- * ARGUMENTS
- * tracer -
- * carrier -
- * text_map -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct otc_span_context *ot_extract_http_headers(struct otc_tracer *tracer, struct otc_http_headers_reader *carrier, const struct otc_text_map *text_map, char **err)
-{
- struct otc_span_context *retptr = NULL;
- int rc;
-
- FLT_OT_FUNC("%p, %p, %p, %p:%p", tracer, carrier, text_map, FLT_OT_DPTR_ARGS(err));
-
- if (carrier == NULL)
- FLT_OT_RETURN_PTR(retptr);
- else if (tracer == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- if (text_map != NULL) {
- (void)memset(carrier, 0, sizeof(*carrier));
- (void)memcpy(&(carrier->text_map), text_map, sizeof(carrier->text_map));
-
- FLT_OT_DBG_TEXT_CARRIER(carrier, foreach_key);
- }
-
- rc = tracer->extract_http_headers(tracer, carrier, &retptr);
- if (rc != otc_propagation_error_code_success) {
- FLT_OT_ERR("failed to extract HTTP headers data");
-
- FLT_OT_FREE_CLEAR(retptr);
- }
- else if (retptr != NULL)
- FLT_OT_DBG_SPAN_CONTEXT(retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * ot_extract_binary -
- *
- * ARGUMENTS
- * tracer -
- * carrier -
- * binary_data -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct otc_span_context *ot_extract_binary(struct otc_tracer *tracer, struct otc_custom_carrier_reader *carrier, const struct otc_binary_data *binary_data)
-{
- struct otc_span_context *retptr = NULL;
- int rc;
-
- FLT_OT_FUNC("%p, %p, %p", tracer, carrier, binary_data);
-
- if (carrier == NULL)
- FLT_OT_RETURN_PTR(retptr);
- else if (tracer == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- if ((FLT_OT_DEREF(binary_data, data, NULL) != NULL) && (binary_data->size > 0)) {
- (void)memset(carrier, 0, sizeof(*carrier));
- (void)memcpy(&(carrier->binary_data), binary_data, sizeof(carrier->binary_data));
-
- FLT_OT_DBG_CUSTOM_CARRIER(carrier, extract);
- }
-
- rc = tracer->extract_binary(tracer, carrier, &retptr);
- if (rc != otc_propagation_error_code_success)
- FLT_OT_FREE_CLEAR(retptr);
- else if (retptr != NULL)
- FLT_OT_DBG_SPAN_CONTEXT(retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * ot_span_finish -
- *
- * ARGUMENTS
- * span -
- * ts_finish -
- * log_ts -
- * log_key -
- * log_value -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void ot_span_finish(struct otc_span **span, const struct timespec *ts_finish, const struct timespec *log_ts, const char *log_key, const char *log_value, ...)
-{
- struct otc_finish_span_options options;
- struct otc_log_field log_field[OTC_MAXLOGFIELDS];
- struct otc_log_record log_records = { .fields = log_field, .num_fields = 0 };
-#ifdef DEBUG_OT
- typeof((*span)->idx) idx = FLT_OT_DDEREF(span, idx, 0);
-#endif
-
- FLT_OT_FUNC("%p:%p, %p, %p, \"%s\", \"%s\", ...", FLT_OT_DPTR_ARGS(span), ts_finish, log_ts, log_key, log_value);
-
- if ((span == NULL) || (*span == NULL))
- FLT_OT_RETURN();
-
- (void)memset(&options, 0, sizeof(options));
-
- if (ts_finish != NULL)
- (void)memcpy(&(options.finish_time.value), ts_finish, sizeof(options.finish_time.value));
-
- if (log_key != NULL) {
- va_list ap;
- int i;
-
- if (log_ts != NULL)
- (void)memcpy(&(log_records.timestamp.value), log_ts, sizeof(log_records.timestamp.value));
-
- va_start(ap, log_value);
- for (i = 0; (i < FLT_OT_TABLESIZE(log_field)) && (log_key != NULL); i++) {
- log_field[i].key = log_key;
- log_field[i].value.type = otc_value_string;
- log_field[i].value.value.string_value = log_value;
-
- log_key = va_arg(ap, typeof(log_key));
- if (log_key != NULL)
- log_value = va_arg(ap, typeof(log_value));
- }
- va_end(ap);
-
- log_records.num_fields = i;
- options.log_records = &log_records;
- options.num_log_records = 1;
- }
-
- /*
- * Caution: memory allocated for the span is released
- * in the function finish_with_options().
- */
- (*span)->finish_with_options(*span, &options);
-
- FLT_OT_DBG(2, "span %p:%zu finished", *span, idx);
-
- *span = NULL;
-
- FLT_OT_RETURN();
-}
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-#ifdef DEBUG_OT
-struct flt_ot_debug flt_ot_debug;
-THREAD_LOCAL int flt_ot_dbg_indent_level = 0;
-#endif
-
-#ifdef OTC_DBG_MEM
-static struct otc_dbg_mem_data dbg_mem_data[1000000];
-static struct otc_dbg_mem dbg_mem;
-#endif
-
-static struct flt_ot_conf *flt_ot_current_config = NULL;
-static struct flt_ot_conf_tracer *flt_ot_current_tracer = NULL;
-static struct flt_ot_conf_group *flt_ot_current_group = NULL;
-static struct flt_ot_conf_scope *flt_ot_current_scope = NULL;
-static struct flt_ot_conf_span *flt_ot_current_span = NULL;
-
-
-/***
- * NAME
- * flt_ot_parse_strdup -
- *
- * ARGUMENTS
- * ptr -
- * str -
- * err -
- * err_msg -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_strdup(char **ptr, const char *str, char **err, const char *err_msg)
-{
- int retval = ERR_NONE;
-
- FLT_OT_FUNC("%p:%p, %p, %p:%p, \"%s\"", FLT_OT_DPTR_ARGS(ptr), str, FLT_OT_DPTR_ARGS(err), err_msg);
-
- *ptr = FLT_OT_STRDUP(str);
- if (*ptr == NULL) {
- FLT_OT_PARSE_ERR(err, "'%s' : out of memory", err_msg);
-
- retval |= ERR_ABORT | ERR_ALERT;
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_keyword -
- *
- * ARGUMENTS
- * ptr -
- * args -
- * cur_arg -
- * pos -
- * err -
- * err_msg -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_keyword(char **ptr, char **args, int cur_arg, int pos, char **err, const char *err_msg)
-{
- int retval = ERR_NONE;
-
- FLT_OT_FUNC("%p:%p, %p, %d, %d, %p:%p, \"%s\"", FLT_OT_DPTR_ARGS(ptr), args, cur_arg, pos, FLT_OT_DPTR_ARGS(err), err_msg);
-
- if (*ptr != NULL) {
- if (cur_arg == pos)
- FLT_OT_PARSE_ERR(err, FLT_OT_FMT_TYPE "%s already set", err_msg);
- else
- FLT_OT_PARSE_ERR(err, "'%s' : %s already set", args[cur_arg], err_msg);
- }
- else if (!FLT_OT_ARG_ISVALID(pos + 1)) {
- if (cur_arg == pos)
- FLT_OT_PARSE_ERR(err, FLT_OT_FMT_TYPE "no %s set", err_msg);
- else
- FLT_OT_PARSE_ERR(err, "'%s' : no %s set", args[cur_arg], err_msg);
- }
- else {
- retval = flt_ot_parse_strdup(ptr, args[pos + 1], err, args[cur_arg]);
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_invalid_char -
- *
- * ARGUMENTS
- * name -
- * type -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static const char *flt_ot_parse_invalid_char(const char *name, int type)
-{
- const char *retptr = NULL;
-
- FLT_OT_FUNC("\"%s\", %d", name, type);
-
- if (!FLT_OT_STR_ISVALID(name))
- FLT_OT_RETURN_EX(retptr, const char *, "%p");
-
- if (type == FLT_OT_PARSE_INVALID_CHAR) {
- retptr = invalid_char(name);
- }
- else if (type == FLT_OT_PARSE_INVALID_DOM) {
- retptr = invalid_domainchar(name);
- }
- else if (type == FLT_OT_PARSE_INVALID_CTX) {
- retptr = invalid_prefix_char(name);
- }
- else if (type == FLT_OT_PARSE_INVALID_VAR) {
- retptr = name;
-
- /*
- * Allowed characters are letters, numbers and '_', the first
- * character in the string must not be a number.
- */
- if (!isdigit(*retptr))
- for (++retptr; (*retptr == '_') || isalnum(*retptr); retptr++);
-
- if (*retptr == '\0')
- retptr = NULL;
- }
-
- FLT_OT_RETURN_EX(retptr, const char *, "%p");
-}
-
-
-/***
- * NAME
- * flt_ot_parse_cfg_check -
- *
- * ARGUMENTS
- * file -
- * linenum -
- * args -
- * id -
- * parse_data -
- * parse_data_size -
- * pdata -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_cfg_check(const char *file, int linenum, char **args, const void *id, const struct flt_ot_parse_data *parse_data, size_t parse_data_size, const struct flt_ot_parse_data **pdata, char **err)
-{
- int i, argc, retval = ERR_NONE;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p, %p, %zu, %p:%p, %p:%p", file, linenum, args, id, parse_data, parse_data_size, FLT_OT_DPTR_ARGS(pdata), FLT_OT_DPTR_ARGS(err));
-
- FLT_OT_ARGS_DUMP();
-
- *pdata = NULL;
-
- /* First check here if args[0] is the correct keyword. */
- for (i = 0; (*pdata == NULL) && (i < parse_data_size); i++)
- if (strcmp(parse_data[i].name, args[0]) == 0)
- *pdata = parse_data + i;
-
- if (*pdata == NULL)
- FLT_OT_PARSE_ERR(err, "'%s' : unknown keyword", args[0]);
- else
- argc = flt_ot_args_count(args);
-
- if ((retval & ERR_CODE) || (id == NULL))
- /* Do nothing. */;
- else if ((id != flt_ot_current_tracer) && (flt_ot_current_config->tracer == NULL))
- FLT_OT_PARSE_ERR(err, "tracer not defined");
-
- /*
- * Checking that fewer arguments are specified in the configuration
- * line than is required.
- */
- if (!(retval & ERR_CODE))
- if (argc < (*pdata)->args_min)
- FLT_OT_PARSE_ERR(err, "'%s' : too few arguments (use '%s%s')", args[0], (*pdata)->name, (*pdata)->usage);
-
- /*
- * Checking that more arguments are specified in the configuration
- * line than the maximum allowed.
- */
- if (!(retval & ERR_CODE) && ((*pdata)->args_max > 0))
- if (argc > (*pdata)->args_max)
- FLT_OT_PARSE_ERR(err, "'%s' : too many arguments (use '%s%s')", args[0], (*pdata)->name, (*pdata)->usage);
-
- /* Checking that the first argument has only allowed characters. */
- if (!(retval & ERR_CODE) && ((*pdata)->check_name != FLT_OT_PARSE_INVALID_NONE)) {
- const char *ic;
-
- ic = flt_ot_parse_invalid_char(args[1], (*pdata)->check_name);
- if (ic != NULL)
- FLT_OT_PARSE_ERR(err, "%s '%s' : invalid character '%c'", args[0], args[1], *ic);
- }
-
- /* Checking that the data group name is defined. */
- if (!(retval & ERR_CODE) && (*pdata)->flag_check_id && (id == NULL))
- FLT_OT_PARSE_ERR(err, "'%s' : %s ID not set (use '%s%s')", args[0], parse_data[1].name, parse_data[1].name, parse_data[1].usage);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_cfg_sample_expr -
- *
- * ARGUMENTS
- * file -
- * linenum -
- * args -
- * idx -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_cfg_sample_expr(const char *file, int linenum, char **args, int *idx, struct list *head, char **err)
-{
- struct flt_ot_conf_sample_expr *expr;
- int retval = ERR_NONE;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p, %p, %p:%p", file, linenum, args, idx, head, FLT_OT_DPTR_ARGS(err));
-
- expr = flt_ot_conf_sample_expr_init(args[*idx], linenum, head, err);
- if (expr != NULL) {
- expr->expr = sample_parse_expr(args, idx, file, linenum, err, &(flt_ot_current_config->proxy->conf.args), NULL);
- if (expr->expr != NULL)
- FLT_OT_DBG(3, "sample expression '%s' added", expr->value);
- else
- retval |= ERR_ABORT | ERR_ALERT;
- } else {
- retval |= ERR_ABORT | ERR_ALERT;
- }
-
- if (retval & ERR_CODE)
- flt_ot_conf_sample_expr_free(&expr);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_cfg_sample -
- *
- * ARGUMENTS
- * file -
- * linenum -
- * args -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_cfg_sample(const char *file, int linenum, char **args, struct list *head, char **err)
-{
- struct flt_ot_conf_sample *sample;
- int idx = 2, retval = ERR_NONE;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p, %p:%p", file, linenum, args, head, FLT_OT_DPTR_ARGS(err));
-
- sample = flt_ot_conf_sample_init(args, linenum, head, err);
- if (sample == NULL)
- FLT_OT_PARSE_ERR(err, "'%s' : out of memory", args[0]);
-
- if (!(retval & ERR_CODE)) {
- flt_ot_current_config->proxy->conf.args.ctx = ARGC_OT;
- flt_ot_current_config->proxy->conf.args.file = file;
- flt_ot_current_config->proxy->conf.args.line = linenum;
-
- while (!(retval & ERR_CODE) && FLT_OT_ARG_ISVALID(idx))
- retval = flt_ot_parse_cfg_sample_expr(file, linenum, args, &idx, &(sample->exprs), err);
-
- flt_ot_current_config->proxy->conf.args.file = NULL;
- flt_ot_current_config->proxy->conf.args.line = 0;
- }
-
- if (retval & ERR_CODE)
- flt_ot_conf_sample_free(&sample);
- else
- FLT_OT_DBG(3, "sample '%s' -> '%s' added", sample->key, sample->value);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_cfg_str -
- *
- * ARGUMENTS
- * file -
- * linenum -
- * args -
- * head -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_cfg_str(const char *file, int linenum, char **args, struct list *head, char **err)
-{
- int i, retval = ERR_NONE;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p, %p:%p", file, linenum, args, head, FLT_OT_DPTR_ARGS(err));
-
- for (i = 1; !(retval & ERR_CODE) && FLT_OT_ARG_ISVALID(i); i++)
- if (flt_ot_conf_str_init(args[i], linenum, head, err) == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_cfg_file -
- *
- * ARGUMENTS
- * ptr -
- * file -
- * linenum -
- * args -
- * err -
- * err_msg -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_cfg_file(char **ptr, const char *file, int linenum, char **args, char **err, const char *err_msg)
-{
- int retval = ERR_NONE;
-
- FLT_OT_FUNC("%p:%p, \"%s\", %d, %p, %p:%p, \"%s\"", FLT_OT_DPTR_ARGS(ptr), file, linenum, args, FLT_OT_DPTR_ARGS(err), err_msg);
-
- if (!FLT_OT_ARG_ISVALID(1))
- FLT_OT_PARSE_ERR(err, "'%s' : no %s specified", flt_ot_current_tracer->id, err_msg);
- else if (alertif_too_many_args(1, file, linenum, args, &retval))
- retval |= ERR_ABORT | ERR_ALERT;
- else if (access(args[1], R_OK) == -1)
- FLT_OT_PARSE_ERR(err, "'%s' : %s", args[1], strerror(errno));
- else
- retval = flt_ot_parse_keyword(ptr, args, 0, 0, err, err_msg);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_check_scope -
- *
- * ARGUMENTS
- * This function takes no arguments.
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns TRUE in case the configuration is not in the currently defined
- * scope, FALSE otherwise.
- */
-static bool flt_ot_parse_check_scope(void)
-{
- bool retval = 0;
-
- if ((cfg_scope != NULL) && (flt_ot_current_config->id != NULL) && (strcmp(flt_ot_current_config->id, cfg_scope) != 0)) {
- FLT_OT_DBG(1, "cfg_scope: '%s', id: '%s'", cfg_scope, flt_ot_current_config->id);
-
- retval = 1;
- }
-
- return retval;
-}
-
-
-/***
- * NAME
- * flt_ot_parse_cfg_tracer -
- *
- * ARGUMENTS
- * file -
- * linenum -
- * args -
- * kw_mod -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_cfg_tracer(const char *file, int linenum, char **args, int kw_mod)
-{
-#define FLT_OT_PARSE_TRACER_DEF(a,b,c,d,e,f,g) { FLT_OT_PARSE_TRACER_##a, b, FLT_OT_PARSE_INVALID_##c, d, e, f, g },
- static const struct flt_ot_parse_data parse_data[] = { FLT_OT_PARSE_TRACER_DEFINES };
-#undef FLT_OT_PARSE_TRACER_DEF
- const struct flt_ot_parse_data *pdata = NULL;
- char *err = NULL, *err_log = NULL;
- int i, retval = ERR_NONE;
-
- FLT_OT_FUNC("\"%s\", %d, %p, 0x%08x", file, linenum, args, kw_mod);
-
- if (flt_ot_parse_check_scope())
- FLT_OT_RETURN_INT(retval);
-
- retval = flt_ot_parse_cfg_check(file, linenum, args, flt_ot_current_tracer, parse_data, FLT_OT_TABLESIZE(parse_data), &pdata, &err);
- if (retval & ERR_CODE) {
- FLT_OT_PARSE_IFERR_ALERT();
-
- FLT_OT_RETURN_INT(retval);
- }
-
- if (pdata->keyword == FLT_OT_PARSE_TRACER_ID) {
- if (flt_ot_current_config->tracer != NULL) {
- FLT_OT_PARSE_ERR(&err, "'%s' : tracer can be defined only once", args[1]);
- } else {
- flt_ot_current_tracer = flt_ot_conf_tracer_init(args[1], linenum, &err);
- if (flt_ot_current_tracer == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
- }
- }
- else if (pdata->keyword == FLT_OT_PARSE_TRACER_LOG) {
- if (parse_logger(args, &(flt_ot_current_tracer->proxy_log.loggers), kw_mod == KWM_NO, file, linenum, &err_log) == 0) {
- FLT_OT_PARSE_ERR(&err, "'%s %s ...' : %s", args[0], args[1], err_log);
- FLT_OT_FREE_CLEAR(err_log);
-
- retval |= ERR_ABORT | ERR_ALERT;
- } else {
- flt_ot_current_tracer->logging |= FLT_OT_LOGGING_ON;
- }
- }
- else if (pdata->keyword == FLT_OT_PARSE_TRACER_CONFIG) {
- retval = flt_ot_parse_cfg_file(&(flt_ot_current_tracer->config), file, linenum, args, &err, "configuration file");
- }
- else if (pdata->keyword == FLT_OT_PARSE_TRACER_PLUGIN) {
- retval = flt_ot_parse_cfg_file(&(flt_ot_current_tracer->plugin), file, linenum, args, &err, "plugin library");
- }
- else if (pdata->keyword == FLT_OT_PARSE_TRACER_GROUPS) {
- for (i = 1; !(retval & ERR_CODE) && FLT_OT_ARG_ISVALID(i); i++)
- if (flt_ot_conf_ph_init(args[i], linenum, &(flt_ot_current_tracer->ph_groups), &err) == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
- }
- else if (pdata->keyword == FLT_OT_PARSE_TRACER_SCOPES) {
- for (i = 1; !(retval & ERR_CODE) && FLT_OT_ARG_ISVALID(i); i++)
- if (flt_ot_conf_ph_init(args[i], linenum, &(flt_ot_current_tracer->ph_scopes), &err) == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
- }
- else if (pdata->keyword == FLT_OT_PARSE_TRACER_ACL) {
- if (strcasecmp(args[1], "or") == 0)
- FLT_OT_PARSE_ERR(&err, "'%s %s ...' : invalid ACL name", args[0], args[1]);
- else if (parse_acl((const char **)args + 1, &(flt_ot_current_tracer->acls), &err, &(flt_ot_current_config->proxy->conf.args), file, linenum) == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
- }
- else if (pdata->keyword == FLT_OT_PARSE_TRACER_RATE_LIMIT) {
- flt_ot_current_tracer->rate_limit = FLT_OT_FLOAT_U32(flt_ot_strtod(args[1], 0.0, FLT_OT_RATE_LIMIT_MAX, &err), FLT_OT_RATE_LIMIT_MAX);
- }
- else if (pdata->keyword == FLT_OT_PARSE_TRACER_OPTION) {
- if (strcmp(args[1], FLT_OT_PARSE_OPTION_DISABLED) == 0) {
- flt_ot_current_tracer->flag_disabled = (kw_mod == KWM_NO) ? 0 : 1;
- }
- else if (strcmp(args[1], FLT_OT_PARSE_OPTION_HARDERR) == 0) {
- flt_ot_current_tracer->flag_harderr = (kw_mod == KWM_NO) ? 0 : 1;
- }
- else if (strcmp(args[1], FLT_OT_PARSE_OPTION_NOLOGNORM) == 0) {
- if (kw_mod == KWM_NO)
- flt_ot_current_tracer->logging &= ~FLT_OT_LOGGING_NOLOGNORM;
- else
- flt_ot_current_tracer->logging |= FLT_OT_LOGGING_NOLOGNORM;
- }
- else
- FLT_OT_PARSE_ERR(&err, "'%s' : unknown option '%s'", args[0], args[1]);
- }
-#ifdef DEBUG_OT
- else if (pdata->keyword == FLT_OT_PARSE_TRACER_DEBUG_LEVEL) {
- flt_ot_debug.level = flt_ot_strtoll(args[1], 0, 255, &err);
- }
-#else
- else {
- FLT_OT_PARSE_WARNING("'%s' : keyword ignored", file, linenum, args[0]);
- }
-#endif
-
- FLT_OT_PARSE_IFERR_ALERT();
-
- if ((retval & ERR_CODE) && (flt_ot_current_tracer != NULL))
- flt_ot_conf_tracer_free(&flt_ot_current_tracer);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_post_parse_cfg_tracer -
- *
- * ARGUMENTS
- * This function takes no arguments.
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_post_parse_cfg_tracer(void)
-{
- char errbuf[BUFSIZ] = "";
- int retval = ERR_NONE;
-
- FLT_OT_FUNC("");
-
- if (flt_ot_current_tracer == NULL)
- FLT_OT_RETURN_INT(retval);
-
- flt_ot_current_config->tracer = flt_ot_current_tracer;
-
- if (flt_ot_current_tracer->id == NULL)
- FLT_OT_RETURN_INT(retval);
-
- if (flt_ot_current_tracer->config == NULL) {
- FLT_OT_POST_PARSE_ALERT("tracer '%s' has no configuration file specified", flt_ot_current_tracer->cfg_line, flt_ot_current_tracer->id);
- } else {
- flt_ot_current_tracer->cfgbuf = otc_file_read(flt_ot_current_tracer->config, "#", errbuf, sizeof(errbuf));
- if (flt_ot_current_tracer->cfgbuf == NULL)
- FLT_OT_POST_PARSE_ALERT("tracer '%s' %s", flt_ot_current_tracer->cfg_line, flt_ot_current_tracer->id, (*errbuf == '\0') ? "cannot load configuration file" : errbuf);
- }
-
- if (flt_ot_current_tracer->plugin == NULL)
- FLT_OT_POST_PARSE_ALERT("tracer '%s' has no plugin library specified", flt_ot_current_tracer->cfg_line, flt_ot_current_tracer->id);
-
- flt_ot_current_tracer = NULL;
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_cfg_group -
- *
- * ARGUMENTS
- * file -
- * linenum -
- * args -
- * kw_mod -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_cfg_group(const char *file, int linenum, char **args, int kw_mod)
-{
-#define FLT_OT_PARSE_GROUP_DEF(a,b,c,d,e,f,g) { FLT_OT_PARSE_GROUP_##a, b, FLT_OT_PARSE_INVALID_##c, d, e, f, g },
- static const struct flt_ot_parse_data parse_data[] = { FLT_OT_PARSE_GROUP_DEFINES };
-#undef FLT_OT_PARSE_GROUP_DEF
- const struct flt_ot_parse_data *pdata = NULL;
- char *err = NULL;
- int i, retval = ERR_NONE;
-
- FLT_OT_FUNC("\"%s\", %d, %p, 0x%08x", file, linenum, args, kw_mod);
-
- if (flt_ot_parse_check_scope())
- FLT_OT_RETURN_INT(retval);
-
- retval = flt_ot_parse_cfg_check(file, linenum, args, flt_ot_current_group, parse_data, FLT_OT_TABLESIZE(parse_data), &pdata, &err);
- if (retval & ERR_CODE) {
- FLT_OT_PARSE_IFERR_ALERT();
-
- FLT_OT_RETURN_INT(retval);
- }
-
- if (pdata->keyword == FLT_OT_PARSE_GROUP_ID) {
- flt_ot_current_group = flt_ot_conf_group_init(args[1], linenum, &(flt_ot_current_config->groups), &err);
- if (flt_ot_current_group == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
- }
- else if (pdata->keyword == FLT_OT_PARSE_GROUP_SCOPES) {
- for (i = 1; !(retval & ERR_CODE) && FLT_OT_ARG_ISVALID(i); i++)
- if (flt_ot_conf_ph_init(args[i], linenum, &(flt_ot_current_group->ph_scopes), &err) == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
- }
-
- FLT_OT_PARSE_IFERR_ALERT();
-
- if ((retval & ERR_CODE) && (flt_ot_current_group != NULL))
- flt_ot_conf_group_free(&flt_ot_current_group);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_post_parse_cfg_group -
- *
- * ARGUMENTS
- * This function takes no arguments.
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_post_parse_cfg_group(void)
-{
- int retval = ERR_NONE;
-
- FLT_OT_FUNC("");
-
- if (flt_ot_current_group == NULL)
- FLT_OT_RETURN_INT(retval);
-
- /* Check that the group has at least one scope defined. */
- if (LIST_ISEMPTY(&(flt_ot_current_group->ph_scopes)))
- FLT_OT_POST_PARSE_ALERT("group '%s' has no defined scope(s)", flt_ot_current_group->cfg_line, flt_ot_current_group->id);
-
- flt_ot_current_group = NULL;
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_cfg_scope_ctx -
- *
- * ARGUMENTS
- * args -
- * cur_arg -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_cfg_scope_ctx(char **args, int cur_arg, char **err)
-{
- uint8_t flags = 0;
- int retval = ERR_NONE;
-
- FLT_OT_FUNC("%p, %d, %p:%p", args, cur_arg, FLT_OT_DPTR_ARGS(err));
-
- if (strcmp(args[cur_arg], FLT_OT_PARSE_CTX_USE_HEADERS) == 0)
- flags = FLT_OT_CTX_USE_HEADERS;
-#ifdef USE_OT_VARS
- else if (strcmp(args[cur_arg], FLT_OT_PARSE_CTX_USE_VARS) == 0)
- flags = FLT_OT_CTX_USE_VARS;
-#endif
- else
- FLT_OT_PARSE_ERR(err, "'%s' : invalid context storage type", args[0]);
-
- if (flags == 0)
- /* Do nothing. */;
- else if (flt_ot_current_span->ctx_flags & flags)
- FLT_OT_PARSE_ERR(err, "'%s' : %s already used", args[0], args[cur_arg]);
- else
- flt_ot_current_span->ctx_flags |= flags;
-
- FLT_OT_DBG(2, "ctx_flags: 0x%02hhx (0x%02hhx)", flt_ot_current_span->ctx_flags, flags);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_acl -
- *
- * ARGUMENTS
- * file -
- * linenum -
- * px -
- * args -
- * err -
- * head -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static struct acl_cond *flt_ot_parse_acl(const char *file, int linenum, struct proxy *px, const char **args, char **err, struct list *head, ...)
-{
- va_list ap;
- int n = 0;
- struct acl_cond *retptr = NULL;
-
- FLT_OT_FUNC("\"%s\", %d, %p, %p, %p:%p, %p, ...", file, linenum, px, args, FLT_OT_DPTR_ARGS(err), head);
-
- for (va_start(ap, head); (retptr == NULL) && (head != NULL); head = va_arg(ap, typeof(head)), n++) {
- retptr = build_acl_cond(file, linenum, head, px, args, (n == 0) ? err : NULL);
- if (retptr != NULL)
- FLT_OT_DBG(2, "ACL build done, using list %p %d", head, n);
- }
- va_end(ap);
-
- if ((retptr != NULL) && (err != NULL))
- FLT_OT_FREE_CLEAR(*err);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_cfg_scope -
- *
- * ARGUMENTS
- * file -
- * linenum -
- * args -
- * kw_mod -
- *
- * DESCRIPTION
- * Function used to load the scope block configuration.
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_cfg_scope(const char *file, int linenum, char **args, int kw_mod)
-{
-#define FLT_OT_PARSE_SCOPE_DEF(a,b,c,d,e,f,g) { FLT_OT_PARSE_SCOPE_##a, b, FLT_OT_PARSE_INVALID_##c, d, e, f, g },
- static const struct flt_ot_parse_data parse_data[] = { FLT_OT_PARSE_SCOPE_DEFINES };
-#undef FLT_OT_PARSE_SCOPE_DEF
- const struct flt_ot_parse_data *pdata = NULL;
- char *err = NULL;
- int i, retval = ERR_NONE;
-
- FLT_OT_FUNC("\"%s\", %d, %p, 0x%08x", file, linenum, args, kw_mod);
-
- if (flt_ot_parse_check_scope())
- FLT_OT_RETURN_INT(retval);
-
- retval = flt_ot_parse_cfg_check(file, linenum, args, flt_ot_current_span, parse_data, FLT_OT_TABLESIZE(parse_data), &pdata, &err);
- if (retval & ERR_CODE) {
- FLT_OT_PARSE_IFERR_ALERT();
-
- FLT_OT_RETURN_INT(retval);
- }
-
- if (pdata->keyword == FLT_OT_PARSE_SCOPE_ID) {
- /* Initialization of a new scope. */
- flt_ot_current_scope = flt_ot_conf_scope_init(args[1], linenum, &(flt_ot_current_config->scopes), &err);
- if (flt_ot_current_scope == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
- }
- else if (pdata->keyword == FLT_OT_PARSE_SCOPE_SPAN) {
- /*
- * Checking if this is the beginning of the definition of
- * a new span.
- */
- if (flt_ot_current_span != NULL) {
- FLT_OT_DBG(3, "span '%s' (done)", flt_ot_current_span->id);
-
- flt_ot_current_span = NULL;
- }
-
- /* Initialization of a new span. */
- flt_ot_current_span = flt_ot_conf_span_init(args[1], linenum, &(flt_ot_current_scope->spans), &err);
-
- /*
- * In case the span has a defined reference,
- * the correctness of the arguments is checked here.
- */
- if (flt_ot_current_span == NULL) {
- retval |= ERR_ABORT | ERR_ALERT;
- }
- else if (FLT_OT_ARG_ISVALID(2)) {
- for (i = 2; (i < pdata->args_max) && FLT_OT_ARG_ISVALID(i); i++)
- if (strcmp(args[i], FLT_OT_PARSE_SPAN_ROOT) == 0) {
- if (flt_ot_current_span->flag_root)
- FLT_OT_PARSE_ERR(&err, "'%s' : already set (use '%s%s')", args[i], pdata->name, pdata->usage);
- else
- flt_ot_current_span->flag_root = 1;
- }
- else if ((strcmp(args[i], FLT_OT_PARSE_SPAN_REF_CHILD) == 0) || (strcmp(args[i], FLT_OT_PARSE_SPAN_REF_FOLLOWS) == 0)) {
- if (!FLT_OT_ARG_ISVALID(i + 1)) {
- FLT_OT_PARSE_ERR(&err, "'%s' : too few arguments (use '%s%s')", args[i], pdata->name, pdata->usage);
- }
- else if (strcmp(args[i++], FLT_OT_PARSE_SPAN_REF_CHILD) == 0) {
- flt_ot_current_span->ref_type = otc_span_reference_child_of;
- flt_ot_current_span->ref_id_len = strlen(args[i]);
-
- retval = flt_ot_parse_strdup(&(flt_ot_current_span->ref_id), args[i], &err, args[1]);
- }
- else {
- flt_ot_current_span->ref_type = otc_span_reference_follows_from;
- flt_ot_current_span->ref_id_len = strlen(args[i]);
-
- retval = flt_ot_parse_strdup(&(flt_ot_current_span->ref_id), args[i], &err, args[1]);
- }
- }
- else {
- FLT_OT_PARSE_ERR(&err, "'%s' : invalid argument (use '%s%s')", args[i], pdata->name, pdata->usage);
- }
- }
- else {
- /*
- * This is not a faulty configuration, only such a case
- * will be logged.
- */
- FLT_OT_DBG(3, "new span '%s' without reference", flt_ot_current_span->id);
- }
- }
- else if (pdata->keyword == FLT_OT_PARSE_SCOPE_TAG) {
- retval = flt_ot_parse_cfg_sample(file, linenum, args, &(flt_ot_current_span->tags), &err);
- }
- else if (pdata->keyword == FLT_OT_PARSE_SCOPE_LOG) {
- retval = flt_ot_parse_cfg_sample(file, linenum, args, &(flt_ot_current_span->logs), &err);
- }
- else if (pdata->keyword == FLT_OT_PARSE_SCOPE_BAGGAGE) {
- retval = flt_ot_parse_cfg_sample(file, linenum, args, &(flt_ot_current_span->baggages), &err);
- }
- else if (pdata->keyword == FLT_OT_PARSE_SCOPE_INJECT) {
- /*
- * Automatic context name generation can be specified here
- * if the contents of the FLT_OT_PARSE_CTX_AUTONAME macro
- * are used as the name. In that case, if the context is
- * after a particular event, it gets its name; otherwise
- * it gets the name of the current span.
- */
- if (flt_ot_current_span->ctx_id != NULL)
- FLT_OT_PARSE_ERR(&err, "'%s' : only one context per span is allowed", args[1]);
- else if (strcmp(args[1], FLT_OT_PARSE_CTX_AUTONAME) != 0)
- retval = flt_ot_parse_strdup(&(flt_ot_current_span->ctx_id), args[1], &err, args[0]);
- else if (flt_ot_current_scope->event != FLT_OT_EVENT_REQ_NONE)
- retval = flt_ot_parse_strdup(&(flt_ot_current_span->ctx_id), flt_ot_event_data[flt_ot_current_scope->event].name, &err, args[0]);
- else
- retval = flt_ot_parse_strdup(&(flt_ot_current_span->ctx_id), flt_ot_current_span->id, &err, args[0]);
-
- if (flt_ot_current_span->ctx_id != NULL) {
- flt_ot_current_span->ctx_id_len = strlen(flt_ot_current_span->ctx_id);
-
- /*
- * Here is checked the context storage type; which, if
- * not explicitly specified, is set to HTTP headers.
- *
- * It is possible to use both types of context storage
- * at the same time.
- */
- if (FLT_OT_ARG_ISVALID(2)) {
- retval = flt_ot_parse_cfg_scope_ctx(args, 2, &err);
- if (!(retval & ERR_CODE) && FLT_OT_ARG_ISVALID(3))
- retval = flt_ot_parse_cfg_scope_ctx(args, 3, &err);
- } else {
- flt_ot_current_span->ctx_flags = FLT_OT_CTX_USE_HEADERS;
- }
- }
- }
- else if (pdata->keyword == FLT_OT_PARSE_SCOPE_EXTRACT) {
- struct flt_ot_conf_context *conf_ctx;
-
- /*
- * Here is checked the context storage type; which, if
- * not explicitly specified, is set to HTTP headers.
- */
- conf_ctx = flt_ot_conf_context_init(args[1], linenum, &(flt_ot_current_scope->contexts), &err);
- if (conf_ctx == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
- else if (!FLT_OT_ARG_ISVALID(2))
- conf_ctx->flags = FLT_OT_CTX_USE_HEADERS;
- else if (strcmp(args[2], FLT_OT_PARSE_CTX_USE_HEADERS) == 0)
- conf_ctx->flags = FLT_OT_CTX_USE_HEADERS;
-#ifdef USE_OT_VARS
- else if (strcmp(args[2], FLT_OT_PARSE_CTX_USE_VARS) == 0)
- conf_ctx->flags = FLT_OT_CTX_USE_VARS;
-#endif
- else
- FLT_OT_PARSE_ERR(&err, "'%s' : invalid context storage type", args[2]);
- }
- else if (pdata->keyword == FLT_OT_PARSE_SCOPE_FINISH) {
- retval = flt_ot_parse_cfg_str(file, linenum, args, &(flt_ot_current_scope->finish), &err);
- }
- else if (pdata->keyword == FLT_OT_PARSE_SCOPE_ACL) {
- if (strcasecmp(args[1], "or") == 0)
- FLT_OT_PARSE_ERR(&err, "'%s %s ...' : invalid ACL name", args[0], args[1]);
- else if (parse_acl((const char **)args + 1, &(flt_ot_current_scope->acls), &err, &(flt_ot_current_config->proxy->conf.args), file, linenum) == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
- }
- else if (pdata->keyword == FLT_OT_PARSE_SCOPE_EVENT) {
- /* Scope can only have one event defined. */
- if (flt_ot_current_scope->event != FLT_OT_EVENT_REQ_NONE) {
- FLT_OT_PARSE_ERR(&err, "'%s' : event already set", flt_ot_current_scope->id);
- } else {
- /* Check the event name. */
- for (i = 0; i < FLT_OT_TABLESIZE(flt_ot_event_data); i++)
- if (strcmp(flt_ot_event_data[i].name, args[1]) == 0) {
- flt_ot_current_scope->event = i;
-
- break;
- }
-
- /*
- * The event can have some condition defined and this
- * is checked here.
- */
- if (flt_ot_current_scope->event == FLT_OT_EVENT_REQ_NONE) {
- FLT_OT_PARSE_ERR(&err, "'%s' : unknown event", args[1]);
- }
- else if (!FLT_OT_ARG_ISVALID(2)) {
- /* Do nothing. */
- }
- else if ((strcmp(args[2], FLT_OT_CONDITION_IF) == 0) || (strcmp(args[2], FLT_OT_CONDITION_UNLESS) == 0)) {
- /*
- * We will first try to build ACL condition using
- * local settings and then if that fails, using
- * global settings (from tracer block). If it
- * also fails, then try to use ACL defined in
- * the HAProxy configuration.
- */
- flt_ot_current_scope->cond = flt_ot_parse_acl(file, linenum, flt_ot_current_config->proxy, (const char **)args + 2, &err, &(flt_ot_current_scope->acls), &(flt_ot_current_config->tracer->acls), &(flt_ot_current_config->proxy->acl), NULL);
- if (flt_ot_current_scope->cond == NULL)
- retval |= ERR_ABORT | ERR_ALERT;
- }
- else {
- FLT_OT_PARSE_ERR(&err, "'%s' : expects either 'if' or 'unless' followed by a condition but found '%s'", args[1], args[2]);
- }
-
- if (!(retval & ERR_CODE))
- FLT_OT_DBG(3, "event '%s'", args[1]);
- }
- }
-
- FLT_OT_PARSE_IFERR_ALERT();
-
- if ((retval & ERR_CODE) && (flt_ot_current_scope != NULL)) {
- flt_ot_conf_scope_free(&flt_ot_current_scope);
-
- flt_ot_current_span = NULL;
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_post_parse_cfg_scope -
- *
- * ARGUMENTS
- * This function takes no arguments.
- *
- * DESCRIPTION
- * In this function the correctness of the complete scope block is examined.
- * This does not mean that all elements are checked here, but only those for
- * which it has not been possible to establish their complete correctness in
- * the function flt_ot_parse_cfg_scope().
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_post_parse_cfg_scope(void)
-{
- struct flt_ot_conf_span *conf_span;
- int retval = ERR_NONE;
-
- FLT_OT_FUNC("");
-
- if (flt_ot_current_scope == NULL)
- FLT_OT_RETURN_INT(retval);
-
- /* If span context inject is used, check that this is possible. */
- list_for_each_entry(conf_span, &(flt_ot_current_scope->spans), list)
- if ((conf_span->ctx_id != NULL) && (conf_span->ctx_flags & FLT_OT_CTX_USE_HEADERS))
- if (!flt_ot_event_data[flt_ot_current_scope->event].flag_http_inject)
- FLT_OT_POST_PARSE_ALERT("inject '%s' : cannot use on this event", conf_span->cfg_line, conf_span->ctx_id);
-
- if (retval & ERR_CODE)
- flt_ot_conf_scope_free(&flt_ot_current_scope);
-
- flt_ot_current_scope = NULL;
- flt_ot_current_span = NULL;
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse_cfg -
- *
- * ARGUMENTS
- * conf -
- * flt_name -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse_cfg(struct flt_ot_conf *conf, const char *flt_name, char **err)
-{
- struct list backup_sections;
- struct cfgfile cfg_file = {0};
- int retval = ERR_ABORT | ERR_ALERT;
-
- FLT_OT_FUNC("%p, \"%s\", %p:%p", conf, flt_name, FLT_OT_DPTR_ARGS(err));
-
- flt_ot_current_config = conf;
-
- /* Backup sections. */
- LIST_INIT(&backup_sections);
- cfg_backup_sections(&backup_sections);
-
- /* Register new OT sections and parse the OT filter configuration file. */
- if (!cfg_register_section(FLT_OT_PARSE_SECTION_TRACER_ID, flt_ot_parse_cfg_tracer, flt_ot_post_parse_cfg_tracer))
- /* Do nothing. */;
- else if (!cfg_register_section(FLT_OT_PARSE_SECTION_GROUP_ID, flt_ot_parse_cfg_group, flt_ot_post_parse_cfg_group))
- /* Do nothing. */;
- else if (!cfg_register_section(FLT_OT_PARSE_SECTION_SCOPE_ID, flt_ot_parse_cfg_scope, flt_ot_post_parse_cfg_scope))
- /* Do nothing. */;
- else if (access(conf->cfg_file, R_OK) == -1)
- FLT_OT_PARSE_ERR(err, "'%s' : %s", conf->cfg_file, strerror(errno));
- else {
- cfg_file.filename = conf->cfg_file;
- cfg_file.size = load_cfg_in_mem(cfg_file.filename, &cfg_file.content);
- if (cfg_file.size < 0) {
- ha_free(&cfg_file.content);
- FLT_OT_RETURN_INT(retval);
- }
- retval = parse_cfg(&cfg_file);
- ha_free(&cfg_file.content);
- }
-
- /* Unregister OT sections and restore previous sections. */
- cfg_unregister_sections();
- cfg_restore_sections(&backup_sections);
-
- flt_ot_current_config = NULL;
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_parse -
- *
- * ARGUMENTS
- * args -
- * cur_arg -
- * px -
- * fconf -
- * err -
- * private -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns ERR_NONE (== 0) in case of success,
- * or a combination of ERR_* flags if an error is encountered.
- */
-static int flt_ot_parse(char **args, int *cur_arg, struct proxy *px, struct flt_conf *fconf, char **err, void *private)
-{
- struct flt_ot_conf *conf = NULL;
- int pos, retval = ERR_NONE;
-
-#ifdef DEBUG_OT
- FLT_OT_RUN_ONCE(
-# ifndef DEBUG_OT_SYSTIME
- (void)memcpy(&(flt_ot_debug.start), &date, sizeof(flt_ot_debug.start));
-# endif
-
- flt_ot_debug.level = FLT_OT_DEBUG_LEVEL;
- );
-#endif
-
- FLT_OT_FUNC("%p, %p, %p, %p, %p:%p, %p", args, cur_arg, px, fconf, FLT_OT_DPTR_ARGS(err), private);
-
-#ifdef OTC_DBG_MEM
- FLT_OT_RUN_ONCE(
- if (otc_dbg_mem_init(&dbg_mem, dbg_mem_data, FLT_OT_TABLESIZE(dbg_mem_data), 0xff) == -1) {
- FLT_OT_PARSE_ERR(err, "cannot initialize memory debugger");
-
- FLT_OT_RETURN_INT(retval);
- }
- );
-#endif
-
- FLT_OT_ARGS_DUMP();
-
- conf = flt_ot_conf_init(px);
- if (conf == NULL) {
- FLT_OT_PARSE_ERR(err, "'%s' : out of memory", args[*cur_arg]);
-
- FLT_OT_RETURN_INT(retval);
- }
-
- for (pos = *cur_arg + 1; !(retval & ERR_CODE) && FLT_OT_ARG_ISVALID(pos); pos++) {
- FLT_OT_DBG(3, "args[%d:2] : { '%s' '%s' }", pos, args[pos], args[pos + 1]);
-
- if (strcmp(args[pos], FLT_OT_OPT_FILTER_ID) == 0) {
- retval = flt_ot_parse_keyword(&(conf->id), args, *cur_arg, pos, err, "name");
- pos++;
- }
- else if (strcmp(args[pos], FLT_OT_OPT_CONFIG) == 0) {
- retval = flt_ot_parse_keyword(&(conf->cfg_file), args, *cur_arg, pos, err, "configuration file");
- if (!(retval & ERR_CODE))
- retval = flt_ot_parse_cfg(conf, args[*cur_arg], err);
- pos++;
- }
- else {
- FLT_OT_PARSE_ERR(err, "'%s' : unknown keyword '%s'", args[*cur_arg], args[pos]);
- }
- }
-
- /* If the OpenTracing filter ID is not set, use default name. */
- if (!(retval & ERR_CODE) && (conf->id == NULL)) {
- ha_warning("parsing : " FLT_OT_FMT_TYPE FLT_OT_FMT_NAME "'no filter id set, using default id '%s'\n", FLT_OT_OPT_FILTER_ID_DEFAULT);
-
- retval = flt_ot_parse_strdup(&(conf->id), FLT_OT_OPT_FILTER_ID_DEFAULT, err, args[*cur_arg]);
- }
-
- if (!(retval & ERR_CODE) && (conf->cfg_file == NULL))
- FLT_OT_PARSE_ERR(err, "'%s' : no configuration file specified", args[*cur_arg]);
-
- if (retval & ERR_CODE) {
- flt_ot_conf_free(&conf);
- } else {
- fconf->id = ot_flt_id;
- fconf->ops = &flt_ot_ops;
- fconf->conf = conf;
-
- *cur_arg = pos;
-
- FLT_OT_DBG(3, "filter set: id '%s', config '%s'", conf->id, conf->cfg_file);
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/* Declare the filter parser for FLT_OT_OPT_NAME keyword. */
-static struct flt_kw_list flt_kws = { FLT_OT_SCOPE, { }, {
- { FLT_OT_OPT_NAME, flt_ot_parse, NULL },
- { NULL, NULL, NULL },
- }
-};
-
-INITCALL1(STG_REGISTER, flt_register_keywords, &flt_kws);
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-/***
- * NAME
- * flt_ot_pool_alloc -
- *
- * ARGUMENTS
- * pool -
- * size -
- * flag_clear -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-void *flt_ot_pool_alloc(struct pool_head *pool, size_t size, bool flag_clear, char **err)
-{
- void *retptr;
-
- FLT_OT_FUNC("%p, %zu, %hhu, %p:%p", pool, size, flag_clear, FLT_OT_DPTR_ARGS(err));
-
- if (pool != NULL) {
- retptr = pool_alloc(pool);
- if (retptr != NULL)
- FLT_OT_DBG(2, "POOL_ALLOC: %s:%d(%p %zu)", __func__, __LINE__, retptr, FLT_OT_DEREF(pool, size, size));
- } else {
- retptr = FLT_OT_MALLOC(size);
- }
-
- if (retptr == NULL)
- FLT_OT_ERR("out of memory");
- else if (flag_clear)
- (void)memset(retptr, 0, size);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_pool_strndup -
- *
- * ARGUMENTS
- * pool -
- * s -
- * size -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-void *flt_ot_pool_strndup(struct pool_head *pool, const char *s, size_t size, char **err)
-{
- void *retptr;
-
- FLT_OT_FUNC("%p, \"%.*s\", %zu, %p:%p", pool, (int)size, s, size, FLT_OT_DPTR_ARGS(err));
-
- if (pool != NULL) {
- retptr = pool_alloc(pool);
- if (retptr != NULL) {
- (void)memcpy(retptr, s, MIN(pool->size - 1, size));
-
- ((uint8_t *)retptr)[MIN(pool->size - 1, size)] = '\0';
- }
- } else {
- retptr = FLT_OT_STRNDUP(s, size);
- }
-
- if (retptr != NULL)
- FLT_OT_DBG(2, "POOL_STRNDUP: %s:%d(%p %zu)", __func__, __LINE__, retptr, FLT_OT_DEREF(pool, size, size));
- else
- FLT_OT_ERR("out of memory");
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_pool_free -
- *
- * ARGUMENTS
- * pool -
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_pool_free(struct pool_head *pool, void **ptr)
-{
- FLT_OT_FUNC("%p, %p:%p", pool, FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG(2, "POOL_FREE: %s:%d(%p %u)", __func__, __LINE__, *ptr, FLT_OT_DEREF(pool, size, 0));
-
- if (pool != NULL)
- pool_free(pool, *ptr);
- else
- FLT_OT_FREE(*ptr);
-
- *ptr = NULL;
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_trash_alloc -
- *
- * ARGUMENTS
- * flag_clear -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct buffer *flt_ot_trash_alloc(bool flag_clear, char **err)
-{
- struct buffer *retptr;
-
- FLT_OT_FUNC("%hhu, %p:%p", flag_clear, FLT_OT_DPTR_ARGS(err));
-
-#ifdef USE_TRASH_CHUNK
- retptr = alloc_trash_chunk();
- if (retptr != NULL)
- FLT_OT_DBG(2, "TRASH_ALLOC: %s:%d(%p %zu)", __func__, __LINE__, retptr, retptr->size);
-#else
- retptr = FLT_OT_MALLOC(sizeof(*retptr));
- if (retptr != NULL) {
- chunk_init(retptr, FLT_OT_MALLOC(global.tune.bufsize), global.tune.bufsize);
- if (retptr->area == NULL)
- FLT_OT_FREE_CLEAR(retptr);
- else
- *(retptr->area) = '\0';
- }
-#endif
-
- if (retptr == NULL)
- FLT_OT_ERR("out of memory");
- else if (flag_clear)
- (void)memset(retptr->area, 0, retptr->size);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_trash_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_trash_free(struct buffer **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG(2, "TRASH_FREE: %s:%d(%p %zu)", __func__, __LINE__, *ptr, (*ptr)->size);
-
-#ifdef USE_TRASH_CHUNK
- free_trash_chunk(*ptr);
-#else
- FLT_OT_FREE((*ptr)->area);
- FLT_OT_FREE(*ptr);
-#endif
-
- *ptr = NULL;
-
- FLT_OT_RETURN();
-}
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-static struct pool_head *pool_head_ot_scope_span __read_mostly = NULL;
-static struct pool_head *pool_head_ot_scope_context __read_mostly = NULL;
-static struct pool_head *pool_head_ot_runtime_context __read_mostly = NULL;
-
-#ifdef USE_POOL_OT_SCOPE_SPAN
-REGISTER_POOL(&pool_head_ot_scope_span, "ot_scope_span", sizeof(struct flt_ot_scope_span));
-#endif
-#ifdef USE_POOL_OT_SCOPE_CONTEXT
-REGISTER_POOL(&pool_head_ot_scope_context, "ot_scope_context", sizeof(struct flt_ot_scope_context));
-#endif
-#ifdef USE_POOL_OT_RUNTIME_CONTEXT
-REGISTER_POOL(&pool_head_ot_runtime_context, "ot_runtime_context", sizeof(struct flt_ot_runtime_context));
-#endif
-
-
-#ifdef DEBUG_OT
-
-/***
- * NAME
- * flt_ot_pools_info -
- *
- * ARGUMENTS
- * This function takes no arguments.
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_pools_info(void)
-{
- /*
- * In case we have some error in the configuration file,
- * it is possible that this pool was not initialized.
- */
-#ifdef USE_POOL_BUFFER
- FLT_OT_DBG(2, "sizeof_pool(buffer) = %u", FLT_OT_DEREF(pool_head_buffer, size, 0));
-#endif
-#ifdef USE_TRASH_CHUNK
- FLT_OT_DBG(2, "sizeof_pool(trash) = %u", FLT_OT_DEREF(pool_head_trash, size, 0));
-#endif
-
-#ifdef USE_POOL_OT_SCOPE_SPAN
- FLT_OT_DBG(2, "sizeof_pool(ot_scope_span) = %u", pool_head_ot_scope_span->size);
-#endif
-#ifdef USE_POOL_OT_SCOPE_CONTEXT
- FLT_OT_DBG(2, "sizeof_pool(ot_scope_context) = %u", pool_head_ot_scope_context->size);
-#endif
-#ifdef USE_POOL_OT_RUNTIME_CONTEXT
- FLT_OT_DBG(2, "sizeof_pool(ot_runtime_context) = %u", pool_head_ot_runtime_context->size);
-#endif
-}
-
-#endif /* DEBUG_OT */
-
-
-/***
- * NAME
- * flt_ot_runtime_context_init -
- *
- * ARGUMENTS
- * s -
- * f -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_runtime_context *flt_ot_runtime_context_init(struct stream *s, struct filter *f, char **err)
-{
- const struct flt_ot_conf *conf = FLT_OT_CONF(f);
- struct buffer uuid;
- struct flt_ot_runtime_context *retptr = NULL;
-
- FLT_OT_FUNC("%p, %p, %p:%p", s, f, FLT_OT_DPTR_ARGS(err));
-
- retptr = flt_ot_pool_alloc(pool_head_ot_runtime_context, sizeof(*retptr), 1, err);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- retptr->stream = s;
- retptr->filter = f;
- retptr->flag_harderr = conf->tracer->flag_harderr;
- retptr->flag_disabled = conf->tracer->flag_disabled;
- retptr->logging = conf->tracer->logging;
- LIST_INIT(&(retptr->spans));
- LIST_INIT(&(retptr->contexts));
-
- uuid = b_make(retptr->uuid, sizeof(retptr->uuid), 0, 0);
- ha_generate_uuid_v4(&uuid);
-
-#ifdef USE_OT_VARS
- /*
- * The HAProxy variable 'sess.ot.uuid' is registered here,
- * after which its value is set to runtime context UUID.
- */
- if (flt_ot_var_register(FLT_OT_VAR_UUID, err) != -1)
- (void)flt_ot_var_set(s, FLT_OT_VAR_UUID, retptr->uuid, SMP_OPT_DIR_REQ, err);
-#endif
-
- FLT_OT_DBG_RUNTIME_CONTEXT("session context: ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_runtime_context_free -
- *
- * ARGUMENTS
- * f -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_runtime_context_free(struct filter *f)
-{
- struct flt_ot_runtime_context *rt_ctx = f->ctx;
-
- FLT_OT_FUNC("%p", f);
-
- if (rt_ctx == NULL)
- FLT_OT_RETURN();
-
- FLT_OT_DBG_RUNTIME_CONTEXT("session context: ", rt_ctx);
-
- if (!LIST_ISEMPTY(&(rt_ctx->spans))) {
- struct timespec ts;
- struct flt_ot_scope_span *span, *span_back;
-
- /* All spans should be completed at the same time. */
- (void)clock_gettime(CLOCK_MONOTONIC, &ts);
-
- list_for_each_entry_safe(span, span_back, &(rt_ctx->spans), list) {
- ot_span_finish(&(span->span), &ts, NULL, NULL, NULL);
- flt_ot_scope_span_free(&span);
- }
- }
-
- if (!LIST_ISEMPTY(&(rt_ctx->contexts))) {
- struct flt_ot_scope_context *ctx, *ctx_back;
-
- list_for_each_entry_safe(ctx, ctx_back, &(rt_ctx->contexts), list)
- flt_ot_scope_context_free(&ctx);
- }
-
- flt_ot_pool_free(pool_head_ot_runtime_context, &(f->ctx));
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_scope_span_init -
- *
- * ARGUMENTS
- * rt_ctx -
- * id -
- * id_len -
- * ref_type -
- * ref_id -
- * ref_id_len -
- * dir -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_scope_span *flt_ot_scope_span_init(struct flt_ot_runtime_context *rt_ctx, const char *id, size_t id_len, otc_span_reference_type_t ref_type, const char *ref_id, size_t ref_id_len, uint dir, char **err)
-{
- struct otc_span *ref_span = NULL;
- struct otc_span_context *ref_ctx = NULL;
- struct flt_ot_scope_span *span, *retptr = NULL;
- struct flt_ot_scope_context *ctx;
-
- FLT_OT_FUNC("%p, \"%s\", %zu, %d, \"%s\", %zu, %u, %p:%p", rt_ctx, id, id_len, ref_type, ref_id, ref_id_len, dir, FLT_OT_DPTR_ARGS(err));
-
- if ((rt_ctx == NULL) || (id == NULL))
- FLT_OT_RETURN_PTR(retptr);
-
- list_for_each_entry(span, &(rt_ctx->spans), list)
- if ((span->id_len == id_len) && (memcmp(span->id, id, id_len) == 0)) {
- FLT_OT_DBG(2, "found span %p", span);
-
- FLT_OT_RETURN_PTR(span);
- }
-
- if (ref_id != NULL) {
- list_for_each_entry(span, &(rt_ctx->spans), list)
- if ((span->id_len == ref_id_len) && (memcmp(span->id, ref_id, ref_id_len) == 0)) {
- ref_span = span->span;
-
- break;
- }
-
- if (ref_span != NULL) {
- FLT_OT_DBG(2, "found referenced span %p", span);
- } else {
- list_for_each_entry(ctx, &(rt_ctx->contexts), list)
- if ((ctx->id_len == ref_id_len) && (memcmp(ctx->id, ref_id, ref_id_len) == 0)) {
- ref_ctx = ctx->context;
-
- break;
- }
-
- if (ref_ctx != NULL) {
- FLT_OT_DBG(2, "found referenced context %p", ctx);
- } else {
- FLT_OT_ERR("cannot find referenced span/context '%s'", ref_id);
-
- FLT_OT_RETURN_PTR(retptr);
- }
- }
- }
-
- retptr = flt_ot_pool_alloc(pool_head_ot_scope_span, sizeof(*retptr), 1, err);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- retptr->id = id;
- retptr->id_len = id_len;
- retptr->smp_opt_dir = dir;
- retptr->ref_type = ref_type;
- retptr->ref_span = ref_span;
- retptr->ref_ctx = ref_ctx;
- LIST_INSERT(&(rt_ctx->spans), &(retptr->list));
-
- FLT_OT_DBG_SCOPE_SPAN("new span ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_scope_span_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_scope_span_free(struct flt_ot_scope_span **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_SCOPE_SPAN("", *ptr);
-
- /* If the span is still active, do nothing. */
- if ((*ptr)->span != NULL) {
- FLT_OT_DBG(2, "cannot finish active span");
-
- FLT_OT_RETURN();
- }
-
- FLT_OT_LIST_DEL(&((*ptr)->list));
- flt_ot_pool_free(pool_head_ot_scope_span, (void **)ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_scope_context_init -
- *
- * ARGUMENTS
- * rt_ctx -
- * tracer -
- * id -
- * id_len -
- * text_map -
- * dir -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct flt_ot_scope_context *flt_ot_scope_context_init(struct flt_ot_runtime_context *rt_ctx, struct otc_tracer *tracer, const char *id, size_t id_len, const struct otc_text_map *text_map, uint dir, char **err)
-{
- struct otc_http_headers_reader reader;
- struct otc_span_context *span_ctx;
- struct flt_ot_scope_context *retptr = NULL;
-
- FLT_OT_FUNC("%p, %p, \"%s\", %zu, %p, %u, %p:%p", rt_ctx, tracer, id, id_len, text_map, dir, FLT_OT_DPTR_ARGS(err));
-
- if ((rt_ctx == NULL) || (tracer == NULL) || (id == NULL) || (text_map == NULL))
- FLT_OT_RETURN_PTR(retptr);
-
- list_for_each_entry(retptr, &(rt_ctx->contexts), list)
- if ((retptr->id_len == id_len) && (memcmp(retptr->id, id, id_len) == 0)) {
- FLT_OT_DBG(2, "found context %p", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
- }
-
- retptr = flt_ot_pool_alloc(pool_head_ot_scope_context, sizeof(*retptr), 1, err);
- if (retptr == NULL)
- FLT_OT_RETURN_PTR(retptr);
-
- span_ctx = ot_extract_http_headers(tracer, &reader, text_map, err);
- if (span_ctx == NULL) {
- flt_ot_scope_context_free(&retptr);
-
- FLT_OT_RETURN_PTR(retptr);
- }
-
- retptr->id = id;
- retptr->id_len = id_len;
- retptr->smp_opt_dir = dir;
- retptr->context = span_ctx;
- LIST_INSERT(&(rt_ctx->contexts), &(retptr->list));
-
- FLT_OT_DBG_SCOPE_CONTEXT("new context ", retptr);
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-
-/***
- * NAME
- * flt_ot_scope_context_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_scope_context_free(struct flt_ot_scope_context **ptr)
-{
- FLT_OT_FUNC("%p:%p", FLT_OT_DPTR_ARGS(ptr));
-
- if ((ptr == NULL) || (*ptr == NULL))
- FLT_OT_RETURN();
-
- FLT_OT_DBG_SCOPE_CONTEXT("", *ptr);
-
- if ((*ptr)->context != NULL)
- (*ptr)->context->destroy(&((*ptr)->context));
-
- FLT_OT_LIST_DEL(&((*ptr)->list));
- flt_ot_pool_free(pool_head_ot_scope_context, (void **)ptr);
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_scope_data_free -
- *
- * ARGUMENTS
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_scope_data_free(struct flt_ot_scope_data *ptr)
-{
- int i;
-
- FLT_OT_FUNC("%p", ptr);
-
- if (ptr == NULL)
- FLT_OT_RETURN();
-
- FLT_OT_DBG_SCOPE_DATA("", ptr);
-
- for (i = 0; i < ptr->num_tags; i++)
- if (ptr->tags[i].value.type == otc_value_string)
- FLT_OT_FREE_VOID(ptr->tags[i].value.value.string_value);
- otc_text_map_destroy(&(ptr->baggage), OTC_TEXT_MAP_FREE_VALUE);
- for (i = 0; i < ptr->num_log_fields; i++)
- if (ptr->log_fields[i].value.type == otc_value_string)
- FLT_OT_FREE_VOID(ptr->log_fields[i].value.value.string_value);
-
- (void)memset(ptr, 0, sizeof(*ptr));
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_scope_finish_mark -
- *
- * ARGUMENTS
- * rt_ctx -
- * id -
- * id_len -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int flt_ot_scope_finish_mark(const struct flt_ot_runtime_context *rt_ctx, const char *id, size_t id_len)
-{
- struct flt_ot_scope_span *span;
- struct flt_ot_scope_context *ctx;
- int span_cnt = 0, ctx_cnt = 0, retval;
-
- FLT_OT_FUNC("%p, \"%s\", %zu", rt_ctx, id, id_len);
-
- if (FLT_OT_STR_CMP(FLT_OT_SCOPE_SPAN_FINISH_ALL, id, id_len)) {
- list_for_each_entry(span, &(rt_ctx->spans), list) {
- span->flag_finish = 1;
- span_cnt++;
- }
-
- list_for_each_entry(ctx, &(rt_ctx->contexts), list) {
- ctx->flag_finish = 1;
- ctx_cnt++;
- }
-
- FLT_OT_DBG(2, "marked %d span(s), %d context(s)", span_cnt, ctx_cnt);
- }
- else if (FLT_OT_STR_CMP(FLT_OT_SCOPE_SPAN_FINISH_REQ, id, id_len)) {
- list_for_each_entry(span, &(rt_ctx->spans), list)
- if (span->smp_opt_dir == SMP_OPT_DIR_REQ) {
- span->flag_finish = 1;
- span_cnt++;
- }
-
- list_for_each_entry(ctx, &(rt_ctx->contexts), list)
- if (ctx->smp_opt_dir == SMP_OPT_DIR_REQ) {
- ctx->flag_finish = 1;
- span_cnt++;
- }
-
- FLT_OT_DBG(2, "marked REQuest channel %d span(s), %d context(s)", span_cnt, ctx_cnt);
- }
- else if (FLT_OT_STR_CMP(FLT_OT_SCOPE_SPAN_FINISH_RES, id, id_len)) {
- list_for_each_entry(span, &(rt_ctx->spans), list)
- if (span->smp_opt_dir == SMP_OPT_DIR_RES) {
- span->flag_finish = 1;
- span_cnt++;
- }
-
- list_for_each_entry(ctx, &(rt_ctx->contexts), list)
- if (ctx->smp_opt_dir == SMP_OPT_DIR_RES) {
- ctx->flag_finish = 1;
- ctx_cnt++;
- }
-
- FLT_OT_DBG(2, "marked RESponse channel %d span(s), %d context(s)", span_cnt, ctx_cnt);
- }
- else {
- list_for_each_entry(span, &(rt_ctx->spans), list)
- if ((span->id_len == id_len) && (memcmp(span->id, id, id_len) == 0)) {
- span->flag_finish = 1;
- span_cnt++;
-
- break;
- }
-
- list_for_each_entry(ctx, &(rt_ctx->contexts), list)
- if ((ctx->id_len == id_len) && (memcmp(ctx->id, id, id_len) == 0)) {
- ctx->flag_finish = 1;
- ctx_cnt++;
-
- break;
- }
-
- if (span_cnt > 0)
- FLT_OT_DBG(2, "marked span '%s'", id);
- if (ctx_cnt > 0)
- FLT_OT_DBG(2, "marked context '%s'", id);
- if ((span_cnt + ctx_cnt) == 0)
- FLT_OT_DBG(2, "cannot find span/context '%s'", id);
- }
-
- retval = span_cnt + ctx_cnt;
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_scope_finish_marked -
- *
- * ARGUMENTS
- * rt_ctx -
- * ts_finish -
- *
- * DESCRIPTION
- * Finish marked spans.
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_scope_finish_marked(const struct flt_ot_runtime_context *rt_ctx, const struct timespec *ts_finish)
-{
- struct flt_ot_scope_span *span;
- struct flt_ot_scope_context *ctx;
-
- FLT_OT_FUNC("%p, %p", rt_ctx, ts_finish);
-
- list_for_each_entry(span, &(rt_ctx->spans), list)
- if (span->flag_finish) {
- FLT_OT_DBG_SCOPE_SPAN("finishing span ", span);
-
- ot_span_finish(&(span->span), ts_finish, NULL, NULL, NULL);
-
- span->flag_finish = 0;
- }
-
- list_for_each_entry(ctx, &(rt_ctx->contexts), list)
- if (ctx->flag_finish) {
- FLT_OT_DBG_SCOPE_CONTEXT("finishing context ", ctx);
-
- if (ctx->context != NULL)
- ctx->context->destroy(&(ctx->context));
-
- ctx->flag_finish = 0;
- }
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_scope_free_unused -
- *
- * ARGUMENTS
- * rt_ctx -
- * chn -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_scope_free_unused(struct flt_ot_runtime_context *rt_ctx, struct channel *chn)
-{
- FLT_OT_FUNC("%p", rt_ctx);
-
- if (rt_ctx == NULL)
- FLT_OT_RETURN();
-
- if (!LIST_ISEMPTY(&(rt_ctx->spans))) {
- struct flt_ot_scope_span *span, *span_back;
-
- list_for_each_entry_safe(span, span_back, &(rt_ctx->spans), list)
- if (span->span == NULL)
- flt_ot_scope_span_free(&span);
- }
-
- if (!LIST_ISEMPTY(&(rt_ctx->contexts))) {
- struct flt_ot_scope_context *ctx, *ctx_back;
-
- list_for_each_entry_safe(ctx, ctx_back, &(rt_ctx->contexts), list)
- if (ctx->context == NULL) {
- /*
- * All headers and variables associated with
- * the context in question should be deleted.
- */
- (void)flt_ot_http_headers_remove(chn, ctx->id, NULL);
-#ifdef USE_OT_VARS
- (void)flt_ot_vars_unset(rt_ctx->stream, FLT_OT_VARS_SCOPE, ctx->id, ctx->smp_opt_dir, NULL);
-#endif
-
- flt_ot_scope_context_free(&ctx);
- }
- }
-
- FLT_OT_DBG_RUNTIME_CONTEXT("session context: ", rt_ctx);
-
- FLT_OT_RETURN();
-}
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-#ifdef DEBUG_OT
-
-/***
- * NAME
- * flt_ot_args_dump -
- *
- * ARGUMENTS
- * args -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_args_dump(char **args)
-{
- int i, argc;
-
- argc = flt_ot_args_count(args);
-
- (void)fprintf(stderr, FLT_OT_DBG_FMT("%.*sargs[%d]: { '%s' "), flt_ot_dbg_indent_level, FLT_OT_DBG_INDENT, argc, args[0]);
-
- for (i = 1; i < argc; i++)
- (void)fprintf(stderr, "'%s' ", args[i]);
-
- (void)fprintf(stderr, "}\n");
-}
-
-
-/***
- * NAME
- * flt_ot_filters_dump -
- *
- * ARGUMENTS
- * This function takes no arguments.
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_filters_dump(void)
-{
- struct flt_conf *fconf;
- struct proxy *px;
-
- FLT_OT_FUNC("");
-
- for (px = proxies_list; px != NULL; px = px->next) {
- FLT_OT_DBG(2, "proxy '%s'", px->id);
-
- list_for_each_entry(fconf, &(px->filter_configs), list)
- if (fconf->id == ot_flt_id) {
- struct flt_ot_conf *conf = fconf->conf;
-
- FLT_OT_DBG(2, " OT filter '%s'", conf->id);
- }
- }
-
- FLT_OT_RETURN();
-}
-
-
-/***
- * NAME
- * flt_ot_chn_label -
- *
- * ARGUMENTS
- * chn -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-const char *flt_ot_chn_label(const struct channel *chn)
-{
- return (chn->flags & CF_ISRESP) ? "RESponse" : "REQuest";
-}
-
-
-/***
- * NAME
- * flt_ot_pr_mode -
- *
- * ARGUMENTS
- * s -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-const char *flt_ot_pr_mode(const struct stream *s)
-{
- struct proxy *px = (s->flags & SF_BE_ASSIGNED) ? s->be : strm_fe(s);
-
- return (px->mode == PR_MODE_HTTP) ? "HTTP" : "TCP";
-}
-
-
-/***
- * NAME
- * flt_ot_stream_pos -
- *
- * ARGUMENTS
- * s -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-const char *flt_ot_stream_pos(const struct stream *s)
-{
- return (s->flags & SF_BE_ASSIGNED) ? "backend" : "frontend";
-}
-
-
-/***
- * NAME
- * flt_ot_type -
- *
- * ARGUMENTS
- * f -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-const char *flt_ot_type(const struct filter *f)
-{
- return (f->flags & FLT_FL_IS_BACKEND_FILTER) ? "backend" : "frontend";
-}
-
-
-/***
- * NAME
- * flt_ot_analyzer -
- *
- * ARGUMENTS
- * an_bit -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-const char *flt_ot_analyzer(uint an_bit)
-{
-#define FLT_OT_AN_DEF(a) { a, #a },
- static const struct {
- uint an_bit;
- const char *str;
- } flt_ot_an[] = { FLT_OT_AN_DEFINES };
-#undef FLT_OT_AN_DEF
- const char *retptr = "invalid an_bit";
- int i;
-
- for (i = 0; i < FLT_OT_TABLESIZE(flt_ot_an); i++)
- if (flt_ot_an[i].an_bit == an_bit) {
- retptr = flt_ot_an[i].str;
-
- break;
- }
-
- return retptr;
-}
-
-
-/***
- * NAME
- * flt_ot_str_hex -
- *
- * ARGUMENTS
- * data -
- * size -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-const char *flt_ot_str_hex(const void *data, size_t size)
-{
- static THREAD_LOCAL char retbuf[BUFSIZ];
- const uint8_t *ptr = data;
- size_t i;
-
- if (data == NULL)
- return "(null)";
- else if (size == 0)
- return "()";
-
- for (i = 0, size <<= 1; (i < (sizeof(retbuf) - 2)) && (i < size); ptr++) {
- retbuf[i++] = FLT_OT_NIBBLE_TO_HEX(*ptr >> 4);
- retbuf[i++] = FLT_OT_NIBBLE_TO_HEX(*ptr & 0x0f);
- }
-
- retbuf[i] = '\0';
-
- return retbuf;
-}
-
-
-/***
- * NAME
- * flt_ot_str_ctrl -
- *
- * ARGUMENTS
- * data -
- * size -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-const char *flt_ot_str_ctrl(const void *data, size_t size)
-{
- static THREAD_LOCAL char retbuf[BUFSIZ];
- const uint8_t *ptr = data;
- size_t i, n = 0;
-
- if (data == NULL)
- return "(null)";
- else if (size == 0)
- return "()";
-
- for (i = 0; (n < (sizeof(retbuf) - 1)) && (i < size); i++)
- retbuf[n++] = ((ptr[i] >= 0x20) && (ptr[i] <= 0x7e)) ? ptr[i] : '.';
-
- retbuf[n] = '\0';
-
- return retbuf;
-}
-
-
-/***
- * NAME
- * flt_ot_list_debug -
- *
- * ARGUMENTS
- * head -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-const char *flt_ot_list_debug(const struct list *head)
-{
- FLT_OT_BUFFER_THR(retbuf, 4, 64, retptr);
-
- if ((head == NULL) || LIST_ISEMPTY(head)) {
- (void)strncpy(retptr, (head == NULL) ? "{ null list }" : "{ empty list }", sizeof(retbuf[0]));
- }
- else if (head->p == head->n) {
- (void)snprintf(retptr, sizeof(retbuf[0]), "{ %p * 1 }", head->p);
- }
- else {
- const struct list *ptr;
- size_t count = 0;
-
- for (ptr = head->n; ptr != head; ptr = ptr->n, count++);
-
- (void)snprintf(retptr, sizeof(retbuf[0]), "{ %p %p %zu }", head->p, head->n, count);
- }
-
- return (retptr);
-}
-
-#endif /* DEBUG_OT */
-
-
-/***
- * NAME
- * flt_ot_chunk_add -
- *
- * ARGUMENTS
- * chk -
- * src -
- * n -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-ssize_t flt_ot_chunk_add(struct buffer *chk, const void *src, size_t n, char **err)
-{
- FLT_OT_FUNC("%p, %p, %zu, %p:%p", chk, src, n, FLT_OT_DPTR_ARGS(err));
-
- if ((chk == NULL) || (src == NULL))
- FLT_OT_RETURN_EX(-1, ssize_t, "%ld");
-
- if (chk->area == NULL)
- chunk_init(chk, FLT_OT_CALLOC(1, global.tune.bufsize), global.tune.bufsize);
-
- if (chk->area == NULL) {
- FLT_OT_ERR("out of memory");
-
- FLT_OT_RETURN_EX(-1, ssize_t, "%ld");
- }
- else if (n > (chk->size - chk->data)) {
- FLT_OT_ERR("chunk size too small");
-
- FLT_OT_RETURN_EX(-1, ssize_t, "%ld");
- }
-
- (void)memcpy(chk->area + chk->data, src, n);
- chk->data += n;
-
- FLT_OT_RETURN_EX(chk->data, ssize_t, "%ld");
-}
-
-
-/***
- * NAME
- * flt_ot_args_count -
- *
- * ARGUMENTS
- * args -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int flt_ot_args_count(char **args)
-{
- int i, retval = 0;
-
- if (args == NULL)
- return retval;
-
- /*
- * It is possible that some arguments within the configuration line
- * are not specified; that is, they are set to a blank string.
- *
- * For example:
- * keyword '' arg_2
- *
- * In that case the content of the args field will be like this:
- * args[0]: 'keyword'
- * args[1]: NULL pointer
- * args[2]: 'arg_2'
- * args[3 .. MAX_LINE_ARGS): NULL pointers
- *
- * The total number of arguments is the index of the last argument
- * (increased by 1) that is not a NULL pointer.
- */
- for (i = 0; i < MAX_LINE_ARGS; i++)
- if (FLT_OT_ARG_ISVALID(i))
- retval = i + 1;
-
- return retval;
-}
-
-
-/***
- * NAME
- * flt_ot_args_to_str -
- *
- * ARGUMENTS
- * args -
- * idx -
- * str -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_args_to_str(char **args, int idx, char **str)
-{
- int i, argc;
-
- if ((args == NULL) || (*args == NULL))
- return;
-
- argc = flt_ot_args_count(args);
-
- for (i = idx; i < argc; i++)
- (void)memprintf(str, "%s%s%s", (*str == NULL) ? "" : *str, (i == idx) ? "" : " ", (args[i] == NULL) ? "" : args[i]);
-}
-
-
-/***
- * NAME
- * flt_ot_strtod -
- *
- * ARGUMENTS
- * nptr -
- * limit_min -
- * limit_max -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-double flt_ot_strtod(const char *nptr, double limit_min, double limit_max, char **err)
-{
- char *endptr = NULL;
- double retval;
-
- errno = 0;
-
- retval = strtod(nptr, &endptr);
- if ((errno != 0) || FLT_OT_STR_ISVALID(endptr))
- FLT_OT_ERR("'%s' : invalid value", nptr);
- else if (!FLT_OT_IN_RANGE(retval, limit_min, limit_max))
- FLT_OT_ERR("'%s' : value out of range [%.2f, %.2f]", nptr, limit_min, limit_max);
-
- return retval;
-}
-
-
-/***
- * NAME
- * flt_ot_strtoll -
- *
- * ARGUMENTS
- * nptr -
- * limit_min -
- * limit_max -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int64_t flt_ot_strtoll(const char *nptr, int64_t limit_min, int64_t limit_max, char **err)
-{
- char *endptr = NULL;
- int64_t retval;
-
- errno = 0;
-
- retval = strtoll(nptr, &endptr, 0);
- if ((errno != 0) || FLT_OT_STR_ISVALID(endptr))
- FLT_OT_ERR("'%s' : invalid value", nptr);
- else if (!FLT_OT_IN_RANGE(retval, limit_min, limit_max))
- FLT_OT_ERR("'%s' : value out of range [%" PRId64 ", %" PRId64 "]", nptr, limit_min, limit_max);
-
- return retval;
-}
-
-
-/***
- * NAME
- * flt_ot_sample_to_str -
- *
- * ARGUMENTS
- * data -
- * value -
- * size -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int flt_ot_sample_to_str(const struct sample_data *data, char *value, size_t size, char **err)
-{
- int retval = -1;
-
- FLT_OT_FUNC("%p, %p, %zu, %p:%p", data, value, size, FLT_OT_DPTR_ARGS(err));
-
- if ((data == NULL) || (value == NULL) || (size == 0))
- FLT_OT_RETURN_INT(retval);
-
- *value = '\0';
-
- if (data->type == SMP_T_ANY) {
- FLT_OT_ERR("invalid sample data type %d", data->type);
- }
- else if (data->type == SMP_T_BOOL) {
- value[0] = data->u.sint ? '1' : '0';
- value[1] = '\0';
-
- retval = 1;
- }
- else if (data->type == SMP_T_SINT) {
- retval = snprintf(value, size, "%lld", data->u.sint);
- }
- else if (data->type == SMP_T_ADDR) {
- /* This type is never used to qualify a sample. */
- }
- else if (data->type == SMP_T_IPV4) {
- if (INET_ADDRSTRLEN > size)
- FLT_OT_ERR("sample data size too large");
- else if (inet_ntop(AF_INET, &(data->u.ipv4), value, INET_ADDRSTRLEN) == NULL)
- FLT_OT_ERR("invalid IPv4 address");
- else
- retval = strlen(value);
- }
- else if (data->type == SMP_T_IPV6) {
- if (INET6_ADDRSTRLEN > size)
- FLT_OT_ERR("sample data size too large");
- else if (inet_ntop(AF_INET6, &(data->u.ipv6), value, INET6_ADDRSTRLEN) == NULL)
- FLT_OT_ERR("invalid IPv6 address");
- else
- retval = strlen(value);
- }
- else if (data->type == SMP_T_STR) {
- if (data->u.str.data >= size) {
- FLT_OT_ERR("sample data size too large");
- }
- else if (data->u.str.data > 0) {
- retval = data->u.str.data;
- memcpy(value, data->u.str.area, retval);
- value[retval] = '\0';
- }
- else {
- /*
- * There is no content to add but we will still return
- * the correct status.
- */
- retval = 0;
- }
- }
- else if (data->type == SMP_T_BIN) {
- FLT_OT_ERR("invalid sample data type %d", data->type);
- }
- else if (data->type != SMP_T_METH) {
- FLT_OT_ERR("invalid sample data type %d", data->type);
- }
- else if (data->u.meth.meth == HTTP_METH_OPTIONS) {
- retval = FLT_OT_STR_SIZE(HTTP_METH_STR_OPTIONS);
-
- (void)memcpy(value, HTTP_METH_STR_OPTIONS, retval + 1);
- }
- else if (data->u.meth.meth == HTTP_METH_GET) {
- retval = FLT_OT_STR_SIZE(HTTP_METH_STR_GET);
-
- (void)memcpy(value, HTTP_METH_STR_GET, retval + 1);
- }
- else if (data->u.meth.meth == HTTP_METH_HEAD) {
- retval = FLT_OT_STR_SIZE(HTTP_METH_STR_HEAD);
-
- (void)memcpy(value, HTTP_METH_STR_HEAD, retval + 1);
- }
- else if (data->u.meth.meth == HTTP_METH_POST) {
- retval = FLT_OT_STR_SIZE(HTTP_METH_STR_POST);
-
- (void)memcpy(value, HTTP_METH_STR_POST, retval + 1);
- }
- else if (data->u.meth.meth == HTTP_METH_PUT) {
- retval = FLT_OT_STR_SIZE(HTTP_METH_STR_PUT);
-
- (void)memcpy(value, HTTP_METH_STR_PUT, retval + 1);
- }
- else if (data->u.meth.meth == HTTP_METH_DELETE) {
- retval = FLT_OT_STR_SIZE(HTTP_METH_STR_DELETE);
-
- (void)memcpy(value, HTTP_METH_STR_DELETE, retval + 1);
- }
- else if (data->u.meth.meth == HTTP_METH_TRACE) {
- retval = FLT_OT_STR_SIZE(HTTP_METH_STR_TRACE);
-
- (void)memcpy(value, HTTP_METH_STR_TRACE, retval + 1);
- }
- else if (data->u.meth.meth == HTTP_METH_CONNECT) {
- retval = FLT_OT_STR_SIZE(HTTP_METH_STR_CONNECT);
-
- (void)memcpy(value, HTTP_METH_STR_CONNECT, retval + 1);
- }
- else if (data->u.meth.meth == HTTP_METH_OTHER) {
- if (data->u.meth.str.data >= size) {
- FLT_OT_ERR("sample data size too large");
- } else {
- retval = data->u.meth.str.data;
- memcpy(value, data->u.meth.str.area, retval);
- value[retval] = '\0';
- }
- }
- else {
- FLT_OT_ERR("invalid HTTP method");
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_sample_to_value -
- *
- * ARGUMENTS
- * key -
- * data -
- * value -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int flt_ot_sample_to_value(const char *key, const struct sample_data *data, struct otc_value *value, char **err)
-{
- int retval = -1;
-
- FLT_OT_FUNC("\"%s\", %p, %p, %p:%p", key, data, value, FLT_OT_DPTR_ARGS(err));
-
- if ((data == NULL) || (value == NULL))
- FLT_OT_RETURN_INT(retval);
-
- if (data->type == SMP_T_BOOL) {
- value->type = otc_value_bool;
- value->value.bool_value = data->u.sint ? 1 : 0;
-
- retval = sizeof(value->value.bool_value);
- }
- else if (data->type == SMP_T_SINT) {
- value->type = otc_value_int64;
- value->value.int64_value = data->u.sint;
-
- retval = sizeof(value->value.int64_value);
- }
- else {
- value->type = otc_value_string;
- value->value.string_value = FLT_OT_MALLOC(global.tune.bufsize);
-
- if (value->value.string_value == NULL)
- FLT_OT_ERR("out of memory");
- else
- retval = flt_ot_sample_to_str(data, (char *)value->value.string_value, global.tune.bufsize, err);
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_sample_add -
- *
- * ARGUMENTS
- * s -
- * dir -
- * sample -
- * data -
- * type -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * Returns a negative value if an error occurs, 0 if it needs to wait,
- * any other value otherwise.
- */
-int flt_ot_sample_add(struct stream *s, uint dir, struct flt_ot_conf_sample *sample, struct flt_ot_scope_data *data, int type, char **err)
-{
- const struct flt_ot_conf_sample_expr *expr;
- struct sample smp;
- struct otc_value value;
- struct buffer buffer;
- int idx = 0, rc, retval = FLT_OT_RET_OK;
-
- FLT_OT_FUNC("%p, %u, %p, %p, %d, %p:%p", s, dir, data, sample, type, FLT_OT_DPTR_ARGS(err));
-
- FLT_OT_DBG_CONF_SAMPLE("sample ", sample);
-
- (void)memset(&buffer, 0, sizeof(buffer));
-
- list_for_each_entry(expr, &(sample->exprs), list) {
- FLT_OT_DBG_CONF_SAMPLE_EXPR("sample expression ", expr);
-
- (void)memset(&smp, 0, sizeof(smp));
-
- /*
- * If we have only one expression to process, then the data
- * type that is the result of the expression is converted to
- * an equivalent data type (if possible) that is written to
- * the tracer.
- *
- * If conversion is not possible, or if we have multiple
- * expressions to process, then the result is converted to
- * a string and as such sent to the tracer.
- */
- if (sample_process(s->be, s->sess, s, dir | SMP_OPT_FINAL, expr->expr, &smp) != NULL) {
- FLT_OT_DBG(3, "data type %d: '%s'", smp.data.type, expr->value);
- } else {
- FLT_OT_DBG(2, "WARNING: failed to fetch '%s' value", expr->value);
-
- /*
- * In case the fetch failed, we will set the result
- * (sample) to an empty static string.
- */
- (void)memset(&(smp.data), 0, sizeof(smp.data));
- smp.data.type = SMP_T_STR;
- smp.data.u.str.area = "";
- }
-
- if ((sample->num_exprs == 1) && (type == FLT_OT_EVENT_SAMPLE_TAG)) {
- if (flt_ot_sample_to_value(sample->key, &(smp.data), &value, err) == -1)
- retval = FLT_OT_RET_ERROR;
- } else {
- if (buffer.area == NULL) {
- chunk_init(&buffer, FLT_OT_CALLOC(1, global.tune.bufsize), global.tune.bufsize);
- if (buffer.area == NULL) {
- FLT_OT_ERR("out of memory");
-
- retval = FLT_OT_RET_ERROR;
-
- break;
- }
- }
-
- rc = flt_ot_sample_to_str(&(smp.data), buffer.area + buffer.data, buffer.size - buffer.data, err);
- if (rc == -1) {
- retval = FLT_OT_RET_ERROR;
- } else {
- buffer.data += rc;
-
- if (sample->num_exprs == ++idx) {
- value.type = otc_value_string;
- value.value.string_value = buffer.area;
- }
- }
- }
- }
-
- if (retval == FLT_OT_RET_ERROR) {
- /* Do nothing. */
- }
- else if (type == FLT_OT_EVENT_SAMPLE_TAG) {
- struct otc_tag *tag = data->tags + data->num_tags++;
-
- tag->key = sample->key;
- (void)memcpy(&(tag->value), &value, sizeof(tag->value));
- }
- else if (type == FLT_OT_EVENT_SAMPLE_LOG) {
- struct otc_log_field *log_field = data->log_fields + data->num_log_fields++;
-
- log_field->key = sample->key;
- (void)memcpy(&(log_field->value), &value, sizeof(log_field->value));
- }
- else {
- if (data->baggage == NULL)
- data->baggage = otc_text_map_new(NULL, FLT_OT_MAXBAGGAGES);
-
- if (data->baggage == NULL) {
- FLT_OT_ERR("out of memory");
-
- retval = FLT_OT_RET_ERROR;
- }
- else if (otc_text_map_add(data->baggage, sample->key, 0, value.value.string_value, 0, 0) == -1) {
- FLT_OT_ERR("out of memory");
-
- retval = FLT_OT_RET_ERROR;
- }
- else
- FLT_OT_DBG(3, "baggage[%zu]: '%s' -> '%s'", data->baggage->count - 1, data->baggage->key[data->baggage->count - 1], data->baggage->value[data->baggage->count - 1]);
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
-/***
- * Copyright 2020 HAProxy Technologies
- *
- * This file is part of the HAProxy OpenTracing filter.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-#include "../include/include.h"
-
-
-#ifdef DEBUG_OT
-
-/***
- * NAME
- * flt_ot_vars_scope_dump -
- *
- * ARGUMENTS
- * vars -
- * scope -
- *
- * DESCRIPTION
- * Function prints the contents of all variables defined for a particular
- * scope.
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static void flt_ot_vars_scope_dump(struct vars *vars, const char *scope)
-{
- int i;
-
- if (vars == NULL)
- return;
-
- vars_rdlock(vars);
- for (i = 0; i < VAR_NAME_ROOTS; i++) {
- struct ceb_node *node = cebu64_imm_first(&(vars->name_root[i]));
-
- for ( ; node != NULL; node = cebu64_imm_next(&(vars->name_root[i]), node)) {
- struct var *var = container_of(node, struct var, name_node);
-
- FLT_OT_DBG(2, "'%s.%016" PRIx64 "' -> '%.*s'", scope, var->name_hash, (int)b_data(&(var->data.u.str)), b_orig(&(var->data.u.str)));
- }
- }
- vars_rdunlock(vars);
-}
-
-
-/***
- * NAME
- * flt_ot_vars_dump -
- *
- * ARGUMENTS
- * s -
- *
- * DESCRIPTION
- * Function prints the contents of all variables grouped by individual
- * scope.
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-void flt_ot_vars_dump(struct stream *s)
-{
- FLT_OT_FUNC("%p", s);
-
- /*
- * It would be nice if we could use the get_vars() function from HAProxy
- * source here to get the value of the 'vars' pointer, but it is defined
- * as 'static inline', so unfortunately none of this is possible.
- */
- flt_ot_vars_scope_dump(&(proc_vars), "PROC");
- flt_ot_vars_scope_dump(&(s->sess->vars), "SESS");
- flt_ot_vars_scope_dump(&(s->vars_txn), "TXN");
- flt_ot_vars_scope_dump(&(s->vars_reqres), "REQ/RES");
-
- FLT_OT_RETURN();
-}
-
-#endif /* DEBUG_OT */
-
-
-/***
- * NAME
- * flt_ot_smp_init -
- *
- * ARGUMENTS
- * s -
- * smp -
- * opt -
- * type -
- * data -
- *
- * DESCRIPTION
- * The function initializes the value of the 'smp' structure. If the 'data'
- * argument is set, then the 'sample_data' member of the 'smp' structure is
- * also initialized.
- *
- * RETURN VALUE
- * This function does not return a value.
- */
-static inline void flt_ot_smp_init(struct stream *s, struct sample *smp, uint opt, int type, const char *data)
-{
- (void)memset(smp, 0, sizeof(*smp));
- (void)smp_set_owner(smp, s->be, s->sess, s, opt | SMP_OPT_FINAL);
-
- if (data != NULL) {
- smp->data.type = type;
-
- chunk_initstr(&(smp->data.u.str), data);
- }
-}
-
-
-/***
- * NAME
- * flt_ot_smp_add -
- *
- * ARGUMENTS
- * data -
- * blk -
- * len -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_smp_add(struct sample_data *data, const char *name, size_t len, char **err)
-{
- bool flag_alloc = 0;
- int retval = FLT_OT_RET_ERROR;
-
- FLT_OT_FUNC("%p, \"%.*s\", %zu, %p:%p", data, (int)len, name, len, FLT_OT_DPTR_ARGS(err));
-
- FLT_OT_DBG_BUF(2, &(data->u.str));
-
- if (b_orig(&(data->u.str)) == NULL) {
- data->type = SMP_T_BIN;
- chunk_init(&(data->u.str), FLT_OT_MALLOC(global.tune.bufsize), global.tune.bufsize);
-
- flag_alloc = (b_orig(&(data->u.str)) != NULL);
- }
-
- if (b_orig(&(data->u.str)) == NULL) {
- FLT_OT_ERR("failed to add ctx '%.*s', not enough memory", (int)len, name);
- }
- else if (len > ((UINT64_C(1) << ((sizeof(FLT_OT_VAR_CTX_SIZE) << 3) - 1)) - 1)) {
- FLT_OT_ERR("failed to add ctx '%.*s', too long name", (int)len, name);
- }
- else if ((len + sizeof(FLT_OT_VAR_CTX_SIZE)) > b_room(&(data->u.str))) {
- FLT_OT_ERR("failed to add ctx '%.*s', too many names", (int)len, name);
- }
- else {
- retval = b_data(&(data->u.str));
-
- b_putchr(&(data->u.str), len);
- (void)__b_putblk(&(data->u.str), name, len);
-
- FLT_OT_DBG_BUF(2, &(data->u.str));
- }
-
- if ((retval == FLT_OT_RET_ERROR) && flag_alloc)
- FLT_OT_FREE(b_orig(&(data->u.str)));
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_normalize_name -
- *
- * ARGUMENTS
- * var_name -
- * size -
- * len -
- * name -
- * flag_cpy -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_normalize_name(char *var_name, size_t size, int *len, const char *name, bool flag_cpy, char **err)
-{
- int retval = 0;
-
- FLT_OT_FUNC("%p, %zu, %p, \"%s\", %hhu, %p:%p", var_name, size, len, name, flag_cpy, FLT_OT_DPTR_ARGS(err));
-
- if (!FLT_OT_STR_ISVALID(name))
- FLT_OT_RETURN_INT(retval);
-
- /*
- * In case the name of the variable consists of several elements,
- * the character '.' is added between them.
- */
- if ((*len == 0) || (var_name[*len - 1] == '.'))
- /* Do nothing. */;
- else if (*len < (size - 1))
- var_name[(*len)++] = '.';
- else {
- FLT_OT_ERR("failed to normalize variable name, buffer too small");
-
- retval = -1;
- }
-
- if (flag_cpy) {
- /* Copy variable name without modification. */
- retval = strlen(name);
- if ((*len + retval + 1) > size) {
- FLT_OT_ERR("failed to normalize variable name, buffer too small");
-
- retval = -1;
- } else {
- (void)memcpy(var_name + *len, name, retval + 1);
-
- *len += retval;
- }
- } else {
- /*
- * HAProxy does not allow the use of variable names containing '-'
- * or ' '. This of course applies to HTTP header names as well.
- * Also, here the capital letters are converted to lowercase.
- */
- while (retval != -1)
- if (*len >= (size - 1)) {
- FLT_OT_ERR("failed to normalize variable name, buffer too small");
-
- retval = -1;
- } else {
- uint8_t ch = name[retval];
-
- if (ch == '\0')
- break;
- else if (ch == '-')
- ch = FLT_OT_VAR_CHAR_DASH;
- else if (ch == ' ')
- ch = FLT_OT_VAR_CHAR_SPACE;
- else if (isupper(ch))
- ch = ist_lc[ch];
-
- var_name[(*len)++] = ch;
- retval++;
- }
-
- var_name[*len] = '\0';
- }
-
- FLT_OT_DBG(3, "var_name: \"%s\" %d/%d", var_name, retval, *len);
-
- if (retval == -1)
- *len = retval;
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_var_name -
- *
- * ARGUMENTS
- * scope -
- * prefix -
- * name -
- * flag_cpy -
- * var_name -
- * size -
- * err -
- *
- * DESCRIPTION
- * The function initializes the value of the 'smp' structure. If the 'data'
- * argument is set, then the 'sample_data' member of the 'smp' structure is
- * also initialized.
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_var_name(const char *scope, const char *prefix, const char *name, bool flag_cpy, char *var_name, size_t size, char **err)
-{
- int retval = 0;
-
- FLT_OT_FUNC("\"%s\", \"%s\", \"%s\", %hhu, %p, %zu, %p:%p", scope, prefix, name, flag_cpy, var_name, size, FLT_OT_DPTR_ARGS(err));
-
- if (flt_ot_normalize_name(var_name, size, &retval, scope, 0, err) >= 0)
- if (flt_ot_normalize_name(var_name, size, &retval, prefix, 0, err) >= 0)
- (void)flt_ot_normalize_name(var_name, size, &retval, name, flag_cpy, err);
-
- if (retval == -1)
- FLT_OT_ERR("failed to construct variable name '%s.%s.%s'", scope, prefix, name);
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_ctx_loop -
- *
- * ARGUMENTS
- * smp -
- * scope -
- * prefix -
- * err -
- * func -
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_ctx_loop(struct sample *smp, const char *scope, const char *prefix, char **err, flt_ot_ctx_loop_cb func, void *ptr)
-{
- FLT_OT_VAR_CTX_SIZE var_ctx_size;
- char var_name[BUFSIZ], var_ctx[BUFSIZ];
- int i, var_name_len, var_ctx_len, rc, n = 1, retval = 0;
-
- FLT_OT_FUNC("%p, \"%s\", \"%s\", %p:%p, %p, %p", smp, scope, prefix, FLT_OT_DPTR_ARGS(err), func, ptr);
-
- /*
- * The variable in which we will save the name of the OpenTracing
- * context variable.
- */
- var_name_len = flt_ot_var_name(scope, prefix, NULL, 0, var_name, sizeof(var_name), err);
- if (var_name_len == -1)
- FLT_OT_RETURN_INT(FLT_OT_RET_ERROR);
-
- /*
- * Here we will try to find all the previously recorded variables from
- * the currently set OpenTracing context. If we find the required
- * variable and it is marked as deleted, we will mark it as active.
- * If we do not find it, then it is added to the end of the previously
- * saved names.
- */
- if (vars_get_by_name(var_name, var_name_len, smp, NULL) == 0) {
- FLT_OT_DBG(2, "ctx '%s' no variable found", var_name);
- }
- else if (smp->data.type != SMP_T_BIN) {
- FLT_OT_ERR("ctx '%s' invalid data type %d", var_name, smp->data.type);
-
- retval = FLT_OT_RET_ERROR;
- }
- else {
- FLT_OT_DBG_BUF(2, &(smp->data.u.str));
-
- for (i = 0; i < b_data(&(smp->data.u.str)); i += sizeof(var_ctx_size) + var_ctx_len, n++) {
- var_ctx_size = *((typeof(var_ctx_size) *)(b_orig(&(smp->data.u.str)) + i));
- var_ctx_len = abs(var_ctx_size);
-
- if ((i + sizeof(var_ctx_size) + var_ctx_len) > b_data(&(smp->data.u.str))) {
- FLT_OT_ERR("ctx '%s' invalid data size", var_name);
-
- retval = FLT_OT_RET_ERROR;
-
- break;
- }
-
- (void)memcpy(var_ctx, b_orig(&(smp->data.u.str)) + i + sizeof(var_ctx_size), var_ctx_len);
- var_ctx[var_ctx_len] = '\0';
-
- rc = func(smp, i, scope, prefix, var_ctx, var_ctx_size, err, ptr);
- if (rc == FLT_OT_RET_ERROR) {
- retval = FLT_OT_RET_ERROR;
-
- break;
- }
- else if (rc > 0) {
- retval = n;
-
- break;
- }
- }
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_ctx_set_cb -
- *
- * ARGUMENTS
- * smp -
- * idx -
- * scope -
- * prefix -
- * name -
- * name_len -
- * err -
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_ctx_set_cb(struct sample *smp, size_t idx, const char *scope, const char *prefix, const char *name, FLT_OT_VAR_CTX_SIZE name_len, char **err, void *ptr)
-{
- struct flt_ot_ctx *ctx = ptr;
- int retval = 0;
-
- FLT_OT_FUNC("%p, %zu, \"%s\", \"%s\", \"%s\", %hhd, %p:%p, %p", smp, idx, scope, prefix, name, name_len, FLT_OT_DPTR_ARGS(err), ptr);
-
- if ((name_len == ctx->value_len) && (strncmp(name, ctx->value, name_len) == 0)) {
- FLT_OT_DBG(2, "ctx '%s' found\n", name);
-
- retval = 1;
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_ctx_set -
- *
- * ARGUMENTS
- * s -
- * scope -
- * prefix -
- * name -
- * opt -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_ctx_set(struct stream *s, const char *scope, const char *prefix, const char *name, uint opt, char **err)
-{
- struct flt_ot_ctx ctx;
- struct sample smp_ctx;
- char var_name[BUFSIZ];
- bool flag_alloc = 0;
- int rc, var_name_len, retval = FLT_OT_RET_ERROR;
-
- FLT_OT_FUNC("%p, \"%s\", \"%s\", \"%s\", %u, %p:%p", s, scope, prefix, name, opt, FLT_OT_DPTR_ARGS(err));
-
- /*
- * The variable in which we will save the name of the OpenTracing
- * context variable.
- */
- var_name_len = flt_ot_var_name(scope, prefix, NULL, 0, var_name, sizeof(var_name), err);
- if (var_name_len == -1)
- FLT_OT_RETURN_INT(retval);
-
- /* Normalized name of the OpenTracing context variable. */
- ctx.value_len = flt_ot_var_name(name, NULL, NULL, 0, ctx.value, sizeof(ctx.value), err);
- if (ctx.value_len == -1)
- FLT_OT_RETURN_INT(retval);
-
- flt_ot_smp_init(s, &smp_ctx, opt, 0, NULL);
-
- retval = flt_ot_ctx_loop(&smp_ctx, scope, prefix, err, flt_ot_ctx_set_cb, &ctx);
- if (retval == 0) {
- rc = flt_ot_smp_add(&(smp_ctx.data), ctx.value, ctx.value_len, err);
- if (rc == FLT_OT_RET_ERROR)
- retval = FLT_OT_RET_ERROR;
-
- flag_alloc = (rc == 0);
- }
-
- if (retval == FLT_OT_RET_ERROR) {
- /* Do nothing. */
- }
- else if (retval > 0) {
- FLT_OT_DBG(2, "ctx '%s' data found", ctx.value);
- }
- else if (vars_set_by_name_ifexist(var_name, var_name_len, &smp_ctx) == 0) {
- FLT_OT_ERR("failed to set ctx '%s'", var_name);
-
- retval = FLT_OT_RET_ERROR;
- }
- else {
- FLT_OT_DBG(2, "ctx '%s' -> '%.*s' set", var_name, (int)b_data(&(smp_ctx.data.u.str)), b_orig(&(smp_ctx.data.u.str)));
-
- retval = b_data(&(smp_ctx.data.u.str));
- }
-
- if (flag_alloc)
- FLT_OT_FREE(b_orig(&(smp_ctx.data.u.str)));
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_var_register -
- *
- * ARGUMENTS
- * scope -
- * prefix -
- * name -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int flt_ot_var_register(const char *scope, const char *prefix, const char *name, char **err)
-{
- struct arg arg;
- char var_name[BUFSIZ];
- int retval = -1, var_name_len;
-
- FLT_OT_FUNC("\"%s\", \"%s\", \"%s\", %p:%p", scope, prefix, name, FLT_OT_DPTR_ARGS(err));
-
- var_name_len = flt_ot_var_name(scope, prefix, name, 0, var_name, sizeof(var_name), err);
- if (var_name_len == -1)
- FLT_OT_RETURN_INT(retval);
-
- /* Set <size> to 0 to not release var_name memory in vars_check_arg(). */
- (void)memset(&arg, 0, sizeof(arg));
- arg.type = ARGT_STR;
- arg.data.str.area = var_name;
- arg.data.str.data = var_name_len;
-
- if (vars_check_arg(&arg, err) == 0) {
- FLT_OT_ERR_APPEND("failed to register variable '%s': %s", var_name, *err);
- } else {
- FLT_OT_DBG(2, "variable '%s' registered", var_name);
-
- retval = var_name_len;
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_var_set -
- *
- * ARGUMENTS
- * s -
- * scope -
- * prefix -
- * name -
- * value -
- * opt -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int flt_ot_var_set(struct stream *s, const char *scope, const char *prefix, const char *name, const char *value, uint opt, char **err)
-{
- struct sample smp;
- char var_name[BUFSIZ];
- int retval = -1, var_name_len;
-
- FLT_OT_FUNC("%p, \"%s\", \"%s\", \"%s\", \"%s\", %u, %p:%p", s, scope, prefix, name, value, opt, FLT_OT_DPTR_ARGS(err));
-
- var_name_len = flt_ot_var_name(scope, prefix, name, 0, var_name, sizeof(var_name), err);
- if (var_name_len == -1)
- FLT_OT_RETURN_INT(retval);
-
- flt_ot_smp_init(s, &smp, opt, SMP_T_STR, value);
-
- if (vars_set_by_name_ifexist(var_name, var_name_len, &smp) == 0) {
- FLT_OT_ERR("failed to set variable '%s'", var_name);
- } else {
- FLT_OT_DBG(2, "variable '%s' set", var_name);
-
- retval = var_name_len;
-
- if (strcmp(scope, FLT_OT_VARS_SCOPE) == 0)
- retval = flt_ot_ctx_set(s, scope, prefix, name, opt, err);
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_vars_unset_cb -
- *
- * ARGUMENTS
- * smp -
- * idx -
- * scope -
- * prefix -
- * name -
- * name_len -
- * err -
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_vars_unset_cb(struct sample *smp, size_t idx, const char *scope, const char *prefix, const char *name, FLT_OT_VAR_CTX_SIZE name_len, char **err, void *ptr)
-{
- struct sample smp_ctx;
- char var_ctx[BUFSIZ];
- int var_ctx_len, retval = FLT_OT_RET_ERROR;
-
- FLT_OT_FUNC("%p, %zu, \"%s\", \"%s\", \"%s\", %hhd, %p:%p, %p", smp, idx, scope, prefix, name, name_len, FLT_OT_DPTR_ARGS(err), ptr);
-
- var_ctx_len = flt_ot_var_name(scope, prefix, name, 1, var_ctx, sizeof(var_ctx), err);
- if (var_ctx_len == -1) {
- FLT_OT_ERR("ctx '%s' invalid", name);
-
- FLT_OT_RETURN_INT(retval);
- }
-
- flt_ot_smp_init(smp->strm, &smp_ctx, smp->opt, 0, NULL);
-
- if (vars_unset_by_name_ifexist(var_ctx, var_ctx_len, &smp_ctx) == 0) {
- FLT_OT_ERR("ctx '%s' no variable found", var_ctx);
- } else {
- FLT_OT_DBG(2, "ctx '%s' unset", var_ctx);
-
- retval = 0;
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_vars_unset -
- *
- * ARGUMENTS
- * s -
- * scope -
- * prefix -
- * opt -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-int flt_ot_vars_unset(struct stream *s, const char *scope, const char *prefix, uint opt, char **err)
-{
- struct sample smp_ctx;
- char var_name[BUFSIZ];
- int var_name_len, retval;
-
- FLT_OT_FUNC("%p, \"%s\", \"%s\", %u, %p:%p", s, scope, prefix, opt, FLT_OT_DPTR_ARGS(err));
-
- flt_ot_smp_init(s, &smp_ctx, opt, 0, NULL);
-
- retval = flt_ot_ctx_loop(&smp_ctx, scope, prefix, err, flt_ot_vars_unset_cb, NULL);
- if (retval != FLT_OT_RET_ERROR) {
- /*
- * After all ctx variables have been unset, the variable used
- * to store their names should also be unset.
- */
- var_name_len = flt_ot_var_name(scope, prefix, NULL, 0, var_name, sizeof(var_name), err);
- if (var_name_len == -1)
- FLT_OT_RETURN_INT(FLT_OT_RET_ERROR);
-
- flt_ot_smp_init(s, &smp_ctx, opt, 0, NULL);
-
- if (vars_unset_by_name_ifexist(var_name, var_name_len, &smp_ctx) == 0) {
- FLT_OT_DBG(2, "variable '%s' not found", var_name);
- } else {
- FLT_OT_DBG(2, "variable '%s' unset", var_name);
-
- retval = 1;
- }
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_vars_get_cb -
- *
- * ARGUMENTS
- * smp -
- * idx -
- * scope -
- * prefix -
- * name -
- * name_len -
- * err -
- * ptr -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-static int flt_ot_vars_get_cb(struct sample *smp, size_t idx, const char *scope, const char *prefix, const char *name, FLT_OT_VAR_CTX_SIZE name_len, char **err, void *ptr)
-{
- struct otc_text_map **map = ptr;
- struct sample smp_ctx;
- char var_ctx[BUFSIZ], ot_var_name[BUFSIZ], ch;
- int var_ctx_len, ot_var_name_len, retval = FLT_OT_RET_ERROR;
-
- FLT_OT_FUNC("%p, %zu, \"%s\", \"%s\", \"%s\", %hhd, %p:%p, %p", smp, idx, scope, prefix, name, name_len, FLT_OT_DPTR_ARGS(err), ptr);
-
- var_ctx_len = flt_ot_var_name(scope, prefix, name, 1, var_ctx, sizeof(var_ctx), err);
- if (var_ctx_len == -1) {
- FLT_OT_ERR("ctx '%s' invalid", name);
-
- FLT_OT_RETURN_INT(retval);
- }
-
- flt_ot_smp_init(smp->strm, &smp_ctx, smp->opt, 0, NULL);
-
- if (vars_get_by_name(var_ctx, var_ctx_len, &smp_ctx, NULL) != 0) {
- FLT_OT_DBG(2, "'%s' -> '%.*s'", var_ctx, (int)b_data(&(smp_ctx.data.u.str)), b_orig(&(smp_ctx.data.u.str)));
-
- if (*map == NULL) {
- *map = otc_text_map_new(NULL, 8);
- if (*map == NULL) {
- FLT_OT_ERR("failed to create map data");
-
- FLT_OT_RETURN_INT(FLT_OT_RET_ERROR);
- }
- }
-
- /*
- * Eh, because the use of some characters is not allowed
- * in the variable name, the conversion of the replaced
- * characters to the original is performed here.
- */
- for (ot_var_name_len = 0; (ch = name[ot_var_name_len]) != '\0'; ot_var_name_len++)
- if (ot_var_name_len >= (FLT_OT_TABLESIZE(ot_var_name) - 1)) {
- FLT_OT_ERR("failed to reverse variable name, buffer too small");
-
- otc_text_map_destroy(map, OTC_TEXT_MAP_FREE_KEY | OTC_TEXT_MAP_FREE_VALUE);
-
- break;
- } else {
- ot_var_name[ot_var_name_len] = (ch == FLT_OT_VAR_CHAR_DASH) ? '-' : ((ch == FLT_OT_VAR_CHAR_SPACE) ? ' ' : ch);
- }
- ot_var_name[ot_var_name_len] = '\0';
-
- if (*map == NULL) {
- retval = FLT_OT_RET_ERROR;
- }
- else if (otc_text_map_add(*map, ot_var_name, ot_var_name_len, b_orig(&(smp_ctx.data.u.str)), b_data(&(smp_ctx.data.u.str)), OTC_TEXT_MAP_DUP_KEY | OTC_TEXT_MAP_DUP_VALUE) == -1) {
- FLT_OT_ERR("failed to add map data");
-
- otc_text_map_destroy(map, OTC_TEXT_MAP_FREE_KEY | OTC_TEXT_MAP_FREE_VALUE);
-
- retval = FLT_OT_RET_ERROR;
- }
- else {
- retval = 0;
- }
- } else {
- FLT_OT_DBG(2, "ctx '%s' no variable found", var_ctx);
- }
-
- FLT_OT_RETURN_INT(retval);
-}
-
-
-/***
- * NAME
- * flt_ot_vars_get -
- *
- * ARGUMENTS
- * s -
- * scope -
- * prefix -
- * opt -
- * err -
- *
- * DESCRIPTION
- * -
- *
- * RETURN VALUE
- * -
- */
-struct otc_text_map *flt_ot_vars_get(struct stream *s, const char *scope, const char *prefix, uint opt, char **err)
-{
- struct sample smp_ctx;
- struct otc_text_map *retptr = NULL;
-
- FLT_OT_FUNC("%p, \"%s\", \"%s\", %u, %p:%p", s, scope, prefix, opt, FLT_OT_DPTR_ARGS(err));
-
- flt_ot_smp_init(s, &smp_ctx, opt, 0, NULL);
-
- (void)flt_ot_ctx_loop(&smp_ctx, scope, prefix, err, flt_ot_vars_get_cb, &retptr);
-
- ot_text_map_show(retptr);
-
- if ((retptr != NULL) && (retptr->count == 0)) {
- FLT_OT_DBG(2, "WARNING: no variables found");
-
- otc_text_map_destroy(&retptr, OTC_TEXT_MAP_FREE_KEY | OTC_TEXT_MAP_FREE_VALUE);
- }
-
- FLT_OT_RETURN_PTR(retptr);
-}
-
-/*
- * Local variables:
- * c-indent-level: 8
- * c-basic-offset: 8
- * End:
- *
- * vi: noexpandtab shiftwidth=8 tabstop=8
- */
+++ /dev/null
---- rate-limit 100.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 650.95us 431.15us 46.44ms 96.67%
- Req/Sec 1.44k 51.39 2.57k 74.89%
- Latency Distribution
- 50% 608.00us
- 75% 760.00us
- 90% 0.91ms
- 99% 1.31ms
- 3434836 requests in 5.00m, 0.89GB read
-Requests/sec: 11446.99
-Transfer/sec: 3.03MB
-----------------------------------------------------------------------
-
---- rate-limit 50.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 398.00us 371.39us 22.56ms 97.23%
- Req/Sec 2.32k 84.01 2.76k 74.84%
- Latency Distribution
- 50% 350.00us
- 75% 467.00us
- 90% 593.00us
- 99% 1.03ms
- 5530848 requests in 5.00m, 1.43GB read
-Requests/sec: 18434.31
-Transfer/sec: 4.89MB
-----------------------------------------------------------------------
-
---- rate-limit 10.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 316.75us 351.92us 23.00ms 98.57%
- Req/Sec 2.87k 94.02 3.22k 79.30%
- Latency Distribution
- 50% 273.00us
- 75% 342.00us
- 90% 424.00us
- 99% 0.94ms
- 6859293 requests in 5.00m, 1.78GB read
-Requests/sec: 22862.16
-Transfer/sec: 6.06MB
-----------------------------------------------------------------------
-
---- rate-limit 2.5 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 307.90us 368.64us 26.08ms 98.71%
- Req/Sec 2.96k 103.84 3.23k 83.76%
- Latency Distribution
- 50% 264.00us
- 75% 327.00us
- 90% 402.00us
- 99% 0.97ms
- 7065667 requests in 5.00m, 1.83GB read
-Requests/sec: 23550.37
-Transfer/sec: 6.24MB
-----------------------------------------------------------------------
-
---- rate-limit 0.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 304.60us 376.36us 30.26ms 98.74%
- Req/Sec 2.99k 106.93 3.24k 83.08%
- Latency Distribution
- 50% 262.00us
- 75% 323.00us
- 90% 396.00us
- 99% 0.95ms
- 7136261 requests in 5.00m, 1.85GB read
-Requests/sec: 23785.77
-Transfer/sec: 6.31MB
-----------------------------------------------------------------------
-
---- rate-limit disabled --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 300.90us 342.35us 22.13ms 98.74%
- Req/Sec 3.00k 95.67 3.33k 81.11%
- Latency Distribution
- 50% 261.00us
- 75% 322.00us
- 90% 394.00us
- 99% 806.00us
- 7159525 requests in 5.00m, 1.85GB read
-Requests/sec: 23863.05
-Transfer/sec: 6.33MB
-----------------------------------------------------------------------
-
---- rate-limit off --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 302.51us 371.99us 30.26ms 98.77%
- Req/Sec 3.00k 104.43 3.73k 83.74%
- Latency Distribution
- 50% 260.00us
- 75% 321.00us
- 90% 394.00us
- 99% 0.89ms
- 7170345 requests in 5.00m, 1.86GB read
-Requests/sec: 23898.19
-Transfer/sec: 6.34MB
-----------------------------------------------------------------------
+++ /dev/null
---- rate-limit 100.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 2.49ms 799.87us 43.00ms 70.90%
- Req/Sec 393.01 20.61 696.00 71.68%
- Latency Distribution
- 50% 2.50ms
- 75% 3.00ms
- 90% 3.38ms
- 99% 4.23ms
- 939237 requests in 5.00m, 249.01MB read
-Requests/sec: 3130.01
-Transfer/sec: 849.75KB
-----------------------------------------------------------------------
-
---- rate-limit 50.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 1.27ms 0.97ms 40.77ms 56.91%
- Req/Sec 778.22 70.30 1.36k 69.10%
- Latency Distribution
- 50% 1.36ms
- 75% 1.80ms
- 90% 2.49ms
- 99% 3.51ms
- 1859055 requests in 5.00m, 492.88MB read
-Requests/sec: 6195.58
-Transfer/sec: 1.64MB
-----------------------------------------------------------------------
-
---- rate-limit 10.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 442.00us 481.47us 31.61ms 90.27%
- Req/Sec 2.25k 130.05 2.73k 72.83%
- Latency Distribution
- 50% 287.00us
- 75% 526.00us
- 90% 0.92ms
- 99% 1.76ms
- 5380213 requests in 5.00m, 1.39GB read
-Requests/sec: 17930.27
-Transfer/sec: 4.75MB
-----------------------------------------------------------------------
-
---- rate-limit 2.5 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 346.65us 414.65us 28.50ms 95.63%
- Req/Sec 2.75k 159.74 3.23k 84.68%
- Latency Distribution
- 50% 271.00us
- 75% 353.00us
- 90% 505.00us
- 99% 1.55ms
- 6560093 requests in 5.00m, 1.70GB read
-Requests/sec: 21864.43
-Transfer/sec: 5.80MB
-----------------------------------------------------------------------
-
---- rate-limit 0.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 313.32us 402.25us 24.73ms 98.55%
- Req/Sec 2.95k 145.03 3.21k 88.99%
- Latency Distribution
- 50% 264.00us
- 75% 327.00us
- 90% 403.00us
- 99% 1.33ms
- 7050847 requests in 5.00m, 1.83GB read
-Requests/sec: 23501.14
-Transfer/sec: 6.23MB
-----------------------------------------------------------------------
-
---- rate-limit disabled --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 310.19us 384.76us 22.18ms 98.66%
- Req/Sec 2.96k 115.62 3.37k 84.30%
- Latency Distribution
- 50% 265.00us
- 75% 327.00us
- 90% 402.00us
- 99% 1.10ms
- 7058682 requests in 5.00m, 1.83GB read
-Requests/sec: 23526.70
-Transfer/sec: 6.24MB
-----------------------------------------------------------------------
-
---- rate-limit off --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 305.86us 367.56us 25.76ms 98.65%
- Req/Sec 2.99k 116.93 3.43k 85.59%
- Latency Distribution
- 50% 261.00us
- 75% 322.00us
- 90% 396.00us
- 99% 1.09ms
- 7137173 requests in 5.00m, 1.85GB read
-Requests/sec: 23788.84
-Transfer/sec: 6.31MB
-----------------------------------------------------------------------
+++ /dev/null
---- rate-limit 100.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 0.89ms 466.84us 35.44ms 94.39%
- Req/Sec 1.09k 39.30 1.32k 72.60%
- Latency Distribution
- 50% 823.00us
- 75% 1.00ms
- 90% 1.20ms
- 99% 2.14ms
- 2594524 requests in 5.00m, 687.86MB read
-Requests/sec: 8645.83
-Transfer/sec: 2.29MB
-----------------------------------------------------------------------
-
---- rate-limit 50.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 681.74us 463.28us 20.45ms 95.46%
- Req/Sec 1.41k 54.00 1.60k 68.97%
- Latency Distribution
- 50% 613.00us
- 75% 785.00us
- 90% 0.98ms
- 99% 2.06ms
- 3367473 requests in 5.00m, 0.87GB read
-Requests/sec: 11222.76
-Transfer/sec: 2.98MB
-----------------------------------------------------------------------
-
---- rate-limit 10.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 558.32us 458.54us 29.40ms 97.73%
- Req/Sec 1.72k 60.67 2.05k 73.10%
- Latency Distribution
- 50% 494.00us
- 75% 610.00us
- 90% 743.00us
- 99% 2.08ms
- 4105420 requests in 5.00m, 1.06GB read
-Requests/sec: 13683.36
-Transfer/sec: 3.63MB
-----------------------------------------------------------------------
-
---- rate-limit 2.5 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 542.66us 440.31us 22.63ms 97.88%
- Req/Sec 1.76k 60.02 2.00k 72.27%
- Latency Distribution
- 50% 481.00us
- 75% 588.00us
- 90% 710.00us
- 99% 2.05ms
- 4214525 requests in 5.00m, 1.09GB read
-Requests/sec: 14046.76
-Transfer/sec: 3.72MB
-----------------------------------------------------------------------
-
---- rate-limit 0.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 529.06us 414.38us 30.09ms 97.97%
- Req/Sec 1.80k 59.34 2.05k 74.47%
- Latency Distribution
- 50% 473.00us
- 75% 576.00us
- 90% 692.00us
- 99% 1.79ms
- 4287428 requests in 5.00m, 1.11GB read
-Requests/sec: 14290.45
-Transfer/sec: 3.79MB
-----------------------------------------------------------------------
-
---- rate-limit disabled --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 517.81us 463.10us 36.81ms 98.25%
- Req/Sec 1.85k 62.39 2.21k 75.65%
- Latency Distribution
- 50% 458.00us
- 75% 558.00us
- 90% 670.00us
- 99% 1.96ms
- 4416273 requests in 5.00m, 1.14GB read
-Requests/sec: 14719.43
-Transfer/sec: 3.90MB
-----------------------------------------------------------------------
-
---- rate-limit off --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 511.67us 428.18us 27.68ms 98.15%
- Req/Sec 1.86k 60.67 2.05k 75.44%
- Latency Distribution
- 50% 455.00us
- 75% 554.00us
- 90% 666.00us
- 99% 1.81ms
- 4441271 requests in 5.00m, 1.15GB read
-Requests/sec: 14803.32
-Transfer/sec: 3.92MB
-----------------------------------------------------------------------
+++ /dev/null
---- rate-limit 100.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 1.24ms 522.78us 35.59ms 79.12%
- Req/Sec 767.71 38.72 3.02k 72.19%
- Latency Distribution
- 50% 1.20ms
- 75% 1.51ms
- 90% 1.78ms
- 99% 2.37ms
- 1834067 requests in 5.00m, 486.25MB read
-Requests/sec: 6111.57
-Transfer/sec: 1.62MB
-----------------------------------------------------------------------
-
---- rate-limit 50.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 593.11us 476.81us 43.00ms 91.27%
- Req/Sec 1.59k 81.15 2.07k 71.14%
- Latency Distribution
- 50% 549.00us
- 75% 788.00us
- 90% 1.03ms
- 99% 1.62ms
- 3795987 requests in 5.00m, 0.98GB read
-Requests/sec: 12650.65
-Transfer/sec: 3.35MB
-----------------------------------------------------------------------
-
---- rate-limit 10.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 326.02us 355.00us 29.23ms 98.05%
- Req/Sec 2.80k 88.05 3.30k 75.36%
- Latency Distribution
- 50% 277.00us
- 75% 356.00us
- 90% 456.00us
- 99% 0.97ms
- 6675563 requests in 5.00m, 1.73GB read
-Requests/sec: 22249.78
-Transfer/sec: 5.90MB
-----------------------------------------------------------------------
-
---- rate-limit 2.5 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 311.77us 357.45us 24.11ms 98.62%
- Req/Sec 2.91k 94.70 3.18k 78.52%
- Latency Distribution
- 50% 268.00us
- 75% 334.00us
- 90% 413.00us
- 99% 0.94ms
- 6960933 requests in 5.00m, 1.80GB read
-Requests/sec: 23201.07
-Transfer/sec: 6.15MB
-----------------------------------------------------------------------
-
---- rate-limit 0.0 --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 302.51us 330.50us 25.84ms 98.69%
- Req/Sec 2.98k 91.46 3.40k 78.84%
- Latency Distribution
- 50% 263.00us
- 75% 325.00us
- 90% 397.00us
- 99% 812.00us
- 7112084 requests in 5.00m, 1.84GB read
-Requests/sec: 23705.14
-Transfer/sec: 6.28MB
-----------------------------------------------------------------------
-
---- rate-limit disabled --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 303.01us 353.98us 28.03ms 98.76%
- Req/Sec 2.99k 93.97 3.34k 81.12%
- Latency Distribution
- 50% 262.00us
- 75% 323.00us
- 90% 395.00us
- 99% 838.00us
- 7133837 requests in 5.00m, 1.85GB read
-Requests/sec: 23777.95
-Transfer/sec: 6.30MB
-----------------------------------------------------------------------
-
---- rate-limit off --------------------------------------------------
-Running 5m test @ http://localhost:10080/index.html
- 8 threads and 8 connections
- Thread Stats Avg Stdev Max +/- Stdev
- Latency 302.61us 349.74us 25.48ms 98.75%
- Req/Sec 2.99k 94.85 3.49k 80.75%
- Latency Distribution
- 50% 262.00us
- 75% 323.00us
- 90% 395.00us
- 99% 822.00us
- 7132714 requests in 5.00m, 1.85GB read
-Requests/sec: 23773.35
-Transfer/sec: 6.30MB
-----------------------------------------------------------------------
+++ /dev/null
-{
- "service": "BE",
- "agent_host": "localhost",
- "agent_port": 8126
-}
+++ /dev/null
-service_name:
- BE
-
-###
-# When using configuration object to instantiate the tracer, the type of
-# sampling can be selected via sampler.type and sampler.param properties.
-# Jaeger libraries support the following samplers:
-#
-# - Constant (sampler.type=const) sampler always makes the same decision for
-# all traces. It either samples all traces (sampler.param=1) or none of
-# them (sampler.param=0).
-#
-# - Probabilistic (sampler.type=probabilistic) sampler makes a random sampling
-# decision with the probability of sampling equal to the value of
-# sampler.param property. For example, with sampler.param=0.1 approximately
-# 1 in 10 traces will be sampled.
-#
-# - Rate Limiting (sampler.type=ratelimiting) sampler uses a leaky bucket rate
-# limiter to ensure that traces are sampled with a certain constant rate.
-# For example, when sampler.param=2.0 it will sample requests with the rate
-# of 2 traces per second.
-#
-# - Remote (sampler.type=remote, which is also the default) sampler consults
-# Jaeger agent for the appropriate sampling strategy to use in the current
-# service. This allows controlling the sampling strategies in the services
-# from a central configuration in Jaeger backend, or even dynamically.
-#
-sampler:
- type: ratelimiting
- param: 10.0
-
-reporter:
- logSpans: true
- localAgentHostPort: localhost:6831
+++ /dev/null
-{
- "service_name": "BE",
- "collector_host": "localhost"
-}
+++ /dev/null
-global
-# nbthread 1
- maxconn 5000
- hard-stop-after 10s
-# log localhost:514 local7 debug
-# debug
- stats socket /tmp/haproxy-be.sock mode 666 level admin
-
-defaults
- log global
- mode http
- option httplog
- option dontlognull
- option httpclose
- retries 3
- maxconn 4000
- timeout connect 5000
- timeout client 50000
- timeout server 50000
-
-listen stats
- mode http
- bind *:8002
- stats uri /
- stats admin if TRUE
- stats refresh 10s
-
-frontend ot-test-be-frontend
- bind *:11080
- mode http
- default_backend servers-backend
-
- filter opentracing id ot-test-be config be/ot.cfg
-
-backend servers-backend
- mode http
- server server-1 127.0.0.1:8000
+++ /dev/null
-[ot-test-be]
- ot-tracer ot-test-tracer
- config be/cfg-jaeger.yml
- plugin libjaeger_opentracing_plugin-0.5.0.so
-# log localhost:514 local7 debug
- option dontlog-normal
- option hard-errors
- no option disabled
-
- scopes frontend_http_request
- scopes backend_tcp_request
- scopes backend_http_request
- scopes client_session_end
-
- scopes server_session_start
- scopes tcp_response
- scopes http_response
- scopes server_session_end
-
- ot-scope frontend_http_request
- extract "ot-ctx" use-headers
- span "HAProxy session" child-of "ot-ctx" root
- baggage "haproxy_id" var(sess.ot.uuid)
- span "Client session" child-of "HAProxy session"
- span "Frontend HTTP request" child-of "Client session"
- tag "http.method" method
- tag "http.url" url
- tag "http.version" str("HTTP/") req.ver
- event on-frontend-http-request
-
- ot-scope backend_tcp_request
- span "Backend TCP request" follows-from "Frontend HTTP request"
- finish "Frontend HTTP request"
- event on-backend-tcp-request
-
- ot-scope backend_http_request
- span "Backend HTTP request" follows-from "Backend TCP request"
- finish "Backend TCP request"
- event on-backend-http-request
-
- ot-scope client_session_end
- finish "Client session"
- event on-client-session-end
-
- ot-scope server_session_start
- span "Server session" child-of "HAProxy session"
- finish "Backend HTTP request"
- event on-server-session-start
-
- ot-scope tcp_response
- span "TCP response" child-of "Server session"
- event on-tcp-response
-
- ot-scope http_response
- span "HTTP response" follows-from "TCP response"
- tag "http.status_code" status
- finish "TCP response"
- event on-http-response
-
- ot-scope server_session_end
- finish *
- event on-server-session-end
+++ /dev/null
-{
- "service": "CMP",
- "agent_host": "localhost",
- "agent_port": 8126
-}
+++ /dev/null
-service_name:
- CMP
-
-###
-# When using configuration object to instantiate the tracer, the type of
-# sampling can be selected via sampler.type and sampler.param properties.
-# Jaeger libraries support the following samplers:
-#
-# - Constant (sampler.type=const) sampler always makes the same decision for
-# all traces. It either samples all traces (sampler.param=1) or none of
-# them (sampler.param=0).
-#
-# - Probabilistic (sampler.type=probabilistic) sampler makes a random sampling
-# decision with the probability of sampling equal to the value of
-# sampler.param property. For example, with sampler.param=0.1 approximately
-# 1 in 10 traces will be sampled.
-#
-# - Rate Limiting (sampler.type=ratelimiting) sampler uses a leaky bucket rate
-# limiter to ensure that traces are sampled with a certain constant rate.
-# For example, when sampler.param=2.0 it will sample requests with the rate
-# of 2 traces per second.
-#
-# - Remote (sampler.type=remote, which is also the default) sampler consults
-# Jaeger agent for the appropriate sampling strategy to use in the current
-# service. This allows controlling the sampling strategies in the services
-# from a central configuration in Jaeger backend, or even dynamically.
-#
-sampler:
- type: ratelimiting
- param: 10.0
-
-reporter:
- logSpans: true
- localAgentHostPort: localhost:6831
+++ /dev/null
-{
- "service_name": "CMP",
- "collector_host": "localhost"
-}
+++ /dev/null
-global
-# nbthread 1
- maxconn 5000
- hard-stop-after 10s
- stats socket /tmp/haproxy.sock mode 666 level admin
-
-defaults
- log global
- mode http
- option httplog
- option dontlognull
- option httpclose
- retries 3
- maxconn 4000
- timeout connect 5000
- timeout client 50000
- timeout server 50000
-
-listen stats
- mode http
- bind *:8001
- stats uri /
- stats admin if TRUE
- stats refresh 10s
-
-frontend ot-test-cmp-frontend
- bind *:10080
- mode http
- default_backend servers-backend
-
- acl acl-http-status-ok status 100:399
- filter opentracing id ot-test-cmp config cmp/ot.cfg
-
-backend servers-backend
- mode http
- server server-1 127.0.0.1:8000
+++ /dev/null
-[ot-test-cmp]
- ot-tracer ot-test-tracer
- config cmp/cfg-jaeger.yml
- plugin libjaeger_opentracing_plugin-0.5.0.so
-# log localhost:514 local7 debug
- option dontlog-normal
- option hard-errors
- no option disabled
- rate-limit 100.0
-
- scopes client_session_start
- scopes frontend_tcp_request
- scopes frontend_http_request
- scopes backend_tcp_request
- scopes backend_http_request
- scopes server_unavailable
-
- scopes server_session_start
- scopes tcp_response
- scopes http_response http_response-error server_session_end client_session_end
-
- ot-scope client_session_start
- span "HAProxy session" root
- baggage "haproxy_id" var(sess.ot.uuid)
- span "Client session" child-of "HAProxy session"
- event on-client-session-start
-
- ot-scope frontend_tcp_request
- span "Frontend TCP request" child-of "Client session"
- event on-frontend-tcp-request
-
- ot-scope frontend_http_request
- span "Frontend HTTP request" follows-from "Frontend TCP request"
- tag "http.method" method
- tag "http.url" url
- tag "http.version" str("HTTP/") req.ver
- finish "Frontend TCP request"
- event on-frontend-http-request
-
- ot-scope backend_tcp_request
- span "Backend TCP request" follows-from "Frontend HTTP request"
- finish "Frontend HTTP request"
- event on-backend-tcp-request
-
- ot-scope backend_http_request
- span "Backend HTTP request" follows-from "Backend TCP request"
- finish "Backend TCP request"
- event on-backend-http-request
-
- ot-scope server_unavailable
- span "HAProxy session"
- tag "error" bool(true)
- log "status" str("503 Service Unavailable")
- finish *
- event on-server-unavailable
-
- ot-scope server_session_start
- span "Server session" child-of "HAProxy session"
- finish "Backend HTTP request"
- event on-server-session-start
-
- ot-scope tcp_response
- span "TCP response" child-of "Server session"
- event on-tcp-response
-
- ot-scope http_response
- span "HTTP response" follows-from "TCP response"
- tag "http.status_code" status
- finish "TCP response"
- event on-http-response
-
- ot-scope http_response-error
- span "HTTP response"
- tag "error" bool(true)
- event on-http-response if !acl-http-status-ok
-
- ot-scope server_session_end
- finish "HTTP response" "Server session"
- event on-http-response
-
- ot-scope client_session_end
- finish "*"
- event on-http-response
+++ /dev/null
-{
- "service": "CTX",
- "agent_host": "localhost",
- "agent_port": 8126
-}
+++ /dev/null
-service_name:
- CTX
-
-###
-# When using configuration object to instantiate the tracer, the type of
-# sampling can be selected via sampler.type and sampler.param properties.
-# Jaeger libraries support the following samplers:
-#
-# - Constant (sampler.type=const) sampler always makes the same decision for
-# all traces. It either samples all traces (sampler.param=1) or none of
-# them (sampler.param=0).
-#
-# - Probabilistic (sampler.type=probabilistic) sampler makes a random sampling
-# decision with the probability of sampling equal to the value of
-# sampler.param property. For example, with sampler.param=0.1 approximately
-# 1 in 10 traces will be sampled.
-#
-# - Rate Limiting (sampler.type=ratelimiting) sampler uses a leaky bucket rate
-# limiter to ensure that traces are sampled with a certain constant rate.
-# For example, when sampler.param=2.0 it will sample requests with the rate
-# of 2 traces per second.
-#
-# - Remote (sampler.type=remote, which is also the default) sampler consults
-# Jaeger agent for the appropriate sampling strategy to use in the current
-# service. This allows controlling the sampling strategies in the services
-# from a central configuration in Jaeger backend, or even dynamically.
-#
-sampler:
- type: ratelimiting
- param: 10.0
-
-reporter:
- logSpans: true
- localAgentHostPort: localhost:6831
+++ /dev/null
-{
- "service_name": "CTX",
- "collector_host": "localhost"
-}
+++ /dev/null
-global
-# nbthread 1
- maxconn 5000
- hard-stop-after 10s
- stats socket /tmp/haproxy.sock mode 666 level admin
-
-defaults
- log global
- mode http
- option httplog
- option dontlognull
- option httpclose
- retries 3
- maxconn 4000
- timeout connect 5000
- timeout client 50000
- timeout server 50000
-
-listen stats
- mode http
- bind *:8001
- stats uri /
- stats admin if TRUE
- stats refresh 10s
-
-frontend ot-test-ctx-frontend
- bind *:10080
- mode http
- default_backend servers-backend
-
- acl acl-http-status-ok status 100:399
- filter opentracing id ot-test-ctx config ctx/ot.cfg
- http-response ot-group ot-test-ctx http_response_group if acl-http-status-ok
- http-after-response ot-group ot-test-ctx http_after_response_group if !acl-http-status-ok
-
-backend servers-backend
- mode http
- server server-1 127.0.0.1:8000
+++ /dev/null
-[ot-test-ctx]
- ot-tracer ot-test-tracer
- log localhost:514 local7 debug
- config ctx/cfg-jaeger.yml
- plugin libjaeger_opentracing_plugin-0.5.0.so
- option dontlog-normal
- option hard-errors
- no option disabled
- rate-limit 100.0
-
- groups http_response_group
- groups http_after_response_group
-
- scopes client_session_start_1
- scopes client_session_start_2
- scopes frontend_tcp_request
- scopes http_wait_request
- scopes http_body_request
- scopes frontend_http_request
- scopes switching_rules_request
- scopes backend_tcp_request
- scopes backend_http_request
- scopes process_server_rules_request
- scopes http_process_request
- scopes tcp_rdp_cookie_request
- scopes process_sticking_rules_request
- scopes client_session_end
- scopes server_unavailable
-
- scopes server_session_start
- scopes tcp_response
- scopes http_wait_response
- scopes process_store_rules_response
- scopes http_response http_response-error
- scopes server_session_end
-
- ot-group http_response_group
- scopes http_response_1
- scopes http_response_2
-
- ot-scope http_response_1
- span "HTTP response"
- log "hdr.content" res.hdr("content-type") str("; length: ") res.hdr("content-length") str(" bytes")
-
- ot-scope http_response_2
- span "HTTP response"
- log "hdr.date" res.hdr("date") str(" / ") res.hdr("last-modified")
-
- ot-group http_after_response_group
- scopes http_after_response
-
- ot-scope http_after_response
- span "HAProxy response" child-of "HAProxy session"
- tag "error" bool(true)
- tag "http.status_code" status
-
- ot-scope client_session_start_1
- span "HAProxy session" root
- inject "ot_ctx_1" use-headers use-vars
- baggage "haproxy_id" var(sess.ot.uuid)
- event on-client-session-start
-
- ot-scope client_session_start_2
- extract "ot_ctx_1" use-vars
- span "Client session" child-of "ot_ctx_1"
- inject "ot_ctx_2" use-headers use-vars
- event on-client-session-start
-
- ot-scope frontend_tcp_request
- extract "ot_ctx_2" use-vars
- span "Frontend TCP request" child-of "ot_ctx_2"
- inject "ot_ctx_3" use-headers use-vars
- event on-frontend-tcp-request
-
- ot-scope http_wait_request
- extract "ot_ctx_3" use-vars
- span "HTTP wait request" follows-from "ot_ctx_3"
- inject "ot_ctx_4" use-headers use-vars
- finish "Frontend TCP request" "ot_ctx_3"
- event on-http-wait-request
-
- ot-scope http_body_request
- extract "ot_ctx_4" use-vars
- span "HTTP body request" follows-from "ot_ctx_4"
- inject "ot_ctx_5" use-headers use-vars
- finish "HTTP wait request" "ot_ctx_4"
- event on-http-body-request
-
- ot-scope frontend_http_request
- extract "ot_ctx_5" use-vars
- span "Frontend HTTP request" follows-from "ot_ctx_5"
- tag "http.method" method
- tag "http.url" url
- tag "http.version" str("HTTP/") req.ver
- inject "ot_ctx_6" use-headers use-vars
- finish "HTTP body request" "ot_ctx_5"
- event on-frontend-http-request
-
- ot-scope switching_rules_request
- extract "ot_ctx_6" use-vars
- span "Switching rules request" follows-from "ot_ctx_6"
- inject "ot_ctx_7" use-headers use-vars
- finish "Frontend HTTP request" "ot_ctx_6"
- event on-switching-rules-request
-
- ot-scope backend_tcp_request
- extract "ot_ctx_7" use-vars
- span "Backend TCP request" follows-from "ot_ctx_7"
- inject "ot_ctx_8" use-headers use-vars
- finish "Switching rules request" "ot_ctx_7"
- event on-backend-tcp-request
-
- ot-scope backend_http_request
- extract "ot_ctx_8" use-vars
- span "Backend HTTP request" follows-from "ot_ctx_8"
- inject "ot_ctx_9" use-headers use-vars
- finish "Backend TCP request" "ot_ctx_8"
- event on-backend-http-request
-
- ot-scope process_server_rules_request
- extract "ot_ctx_9" use-vars
- span "Process server rules request" follows-from "ot_ctx_9"
- inject "ot_ctx_10" use-headers use-vars
- finish "Backend HTTP request" "ot_ctx_9"
- event on-process-server-rules-request
-
- ot-scope http_process_request
- extract "ot_ctx_10" use-vars
- span "HTTP process request" follows-from "ot_ctx_10"
- inject "ot_ctx_11" use-headers use-vars
- finish "Process server rules request" "ot_ctx_10"
- event on-http-process-request
-
- ot-scope tcp_rdp_cookie_request
- extract "ot_ctx_11" use-vars
- span "TCP RDP cookie request" follows-from "ot_ctx_11"
- inject "ot_ctx_12" use-headers use-vars
- finish "HTTP process request" "ot_ctx_11"
- event on-tcp-rdp-cookie-request
-
- ot-scope process_sticking_rules_request
- extract "ot_ctx_12" use-vars
- span "Process sticking rules request" follows-from "ot_ctx_12"
- inject "ot_ctx_13" use-headers use-vars
- finish "TCP RDP cookie request" "ot_ctx_12"
- event on-process-sticking-rules-request
-
- ot-scope client_session_end
- finish "Client session" "ot_ctx_2"
- event on-client-session-end
-
- ot-scope server_unavailable
- finish *
- event on-server-unavailable
-
- ot-scope server_session_start
- span "Server session" child-of "ot_ctx_1"
- inject "ot_ctx_14" use-vars
- extract "ot_ctx_13" use-vars
- finish "Process sticking rules request" "ot_ctx_13"
- event on-server-session-start
-
- ot-scope tcp_response
- extract "ot_ctx_14" use-vars
- span "TCP response" child-of "ot_ctx_14"
- inject "ot_ctx_15" use-vars
- event on-tcp-response
-
- ot-scope http_wait_response
- extract "ot_ctx_15" use-vars
- span "HTTP wait response" follows-from "ot_ctx_15"
- inject "ot_ctx_16" use-headers use-vars
- finish "TCP response" "ot_ctx_15"
- event on-http-wait-response
-
- ot-scope process_store_rules_response
- extract "ot_ctx_16" use-vars
- span "Process store rules response" follows-from "ot_ctx_16"
- inject "ot_ctx_17" use-headers use-vars
- finish "HTTP wait response" "ot_ctx_16"
- event on-process-store-rules-response
-
- ot-scope http_response
- extract "ot_ctx_17" use-vars
- span "HTTP response" follows-from "ot_ctx_17"
- tag "http.status_code" status
- finish "Process store rules response" "ot_ctx_17"
- event on-http-response
-
- ot-scope http_response-error
- span "HTTP response"
- tag "error" bool(true)
- event on-http-response if !acl-http-status-ok
-
- ot-scope server_session_end
- finish *
- event on-server-session-end
+++ /dev/null
-{
- "service": "EMPTY",
- "agent_host": "localhost",
- "agent_port": 8126
-}
+++ /dev/null
-service_name:
- EMPTY
-
-###
-# When using configuration object to instantiate the tracer, the type of
-# sampling can be selected via sampler.type and sampler.param properties.
-# Jaeger libraries support the following samplers:
-#
-# - Constant (sampler.type=const) sampler always makes the same decision for
-# all traces. It either samples all traces (sampler.param=1) or none of
-# them (sampler.param=0).
-#
-# - Probabilistic (sampler.type=probabilistic) sampler makes a random sampling
-# decision with the probability of sampling equal to the value of
-# sampler.param property. For example, with sampler.param=0.1 approximately
-# 1 in 10 traces will be sampled.
-#
-# - Rate Limiting (sampler.type=ratelimiting) sampler uses a leaky bucket rate
-# limiter to ensure that traces are sampled with a certain constant rate.
-# For example, when sampler.param=2.0 it will sample requests with the rate
-# of 2 traces per second.
-#
-# - Remote (sampler.type=remote, which is also the default) sampler consults
-# Jaeger agent for the appropriate sampling strategy to use in the current
-# service. This allows controlling the sampling strategies in the services
-# from a central configuration in Jaeger backend, or even dynamically.
-#
-sampler:
- type: ratelimiting
- param: 10.0
-
-reporter:
- logSpans: true
- localAgentHostPort: localhost:6831
+++ /dev/null
-{
- "service_name": "EMPTY",
- "collector_host": "localhost"
-}
+++ /dev/null
-global
- stats socket /tmp/haproxy.sock mode 666 level admin
-
-defaults
- log global
- mode http
- option httplog
- option dontlognull
- option httpclose
- timeout connect 5000
- timeout client 50000
- timeout server 50000
-
-listen stats
- mode http
- bind *:8001
- stats uri /
- stats admin if TRUE
- stats refresh 10s
-
-frontend ot-test-empty
- bind *:10080
- mode http
- default_backend servers-backend
-
- filter opentracing id ot-test-empty config empty/ot.cfg
-
-backend servers-backend
- mode http
- server server-1 127.0.0.1:8000
+++ /dev/null
-ot-tracer ot-test-tracer
- config empty/cfg-jaeger.yml
- plugin libjaeger_opentracing_plugin-0.5.0.so
+++ /dev/null
-{
- "service": "FE",
- "agent_host": "localhost",
- "agent_port": 8126
-}
+++ /dev/null
-service_name:
- FE
-
-###
-# When using configuration object to instantiate the tracer, the type of
-# sampling can be selected via sampler.type and sampler.param properties.
-# Jaeger libraries support the following samplers:
-#
-# - Constant (sampler.type=const) sampler always makes the same decision for
-# all traces. It either samples all traces (sampler.param=1) or none of
-# them (sampler.param=0).
-#
-# - Probabilistic (sampler.type=probabilistic) sampler makes a random sampling
-# decision with the probability of sampling equal to the value of
-# sampler.param property. For example, with sampler.param=0.1 approximately
-# 1 in 10 traces will be sampled.
-#
-# - Rate Limiting (sampler.type=ratelimiting) sampler uses a leaky bucket rate
-# limiter to ensure that traces are sampled with a certain constant rate.
-# For example, when sampler.param=2.0 it will sample requests with the rate
-# of 2 traces per second.
-#
-# - Remote (sampler.type=remote, which is also the default) sampler consults
-# Jaeger agent for the appropriate sampling strategy to use in the current
-# service. This allows controlling the sampling strategies in the services
-# from a central configuration in Jaeger backend, or even dynamically.
-#
-sampler:
- type: ratelimiting
- param: 10.0
-
-reporter:
- logSpans: true
- localAgentHostPort: localhost:6831
+++ /dev/null
-{
- "service_name": "FE",
- "collector_host": "localhost"
-}
+++ /dev/null
-global
-# nbthread 1
- maxconn 5000
- hard-stop-after 10s
-# log localhost:514 local7 debug
-# debug
- stats socket /tmp/haproxy-fe.sock mode 666 level admin
-
-defaults
- log global
- mode http
- option httplog
- option dontlognull
- option httpclose
- retries 3
- maxconn 4000
- timeout connect 5000
- timeout client 50000
- timeout server 50000
-
-listen stats
- mode http
- bind *:8001
- stats uri /
- stats admin if TRUE
- stats refresh 10s
-
-frontend ot-test-fe-frontend
- bind *:10080
- mode http
- default_backend servers-backend
-
- filter opentracing id ot-test-fe config fe/ot.cfg
-
-backend servers-backend
- mode http
- server server-1 127.0.0.1:11080
+++ /dev/null
-[ot-test-fe]
- ot-tracer ot-test-tracer
- config fe/cfg-jaeger.yml
- plugin libjaeger_opentracing_plugin-0.5.0.so
-# log localhost:514 local7 debug
- option dontlog-normal
- option hard-errors
- no option disabled
- rate-limit 100.0
-
- scopes client_session_start
- scopes frontend_tcp_request
- scopes frontend_http_request
- scopes backend_tcp_request
- scopes backend_http_request
- scopes client_session_end
-
- scopes server_session_start
- scopes tcp_response
- scopes http_response
- scopes server_session_end
-
- ot-scope client_session_start
- span "HAProxy session" root
- baggage "haproxy_id" var(sess.ot.uuid)
- span "Client session" child-of "HAProxy session"
- event on-client-session-start
-
- ot-scope frontend_tcp_request
- span "Frontend TCP request" child-of "Client session"
- event on-frontend-tcp-request
-
- ot-scope frontend_http_request
- span "Frontend HTTP request" follows-from "Frontend TCP request"
- tag "http.method" method
- tag "http.url" url
- tag "http.version" str("HTTP/") req.ver
- finish "Frontend TCP request"
- event on-frontend-http-request
-
- ot-scope backend_tcp_request
- span "Backend TCP request" follows-from "Frontend HTTP request"
- finish "Frontend HTTP request"
- event on-backend-tcp-request
-
- ot-scope backend_http_request
- span "Backend HTTP request" follows-from "Backend TCP request"
- finish "Backend TCP request"
- span "HAProxy session"
- inject "ot-ctx" use-headers
- event on-backend-http-request
-
- ot-scope client_session_end
- finish "Client session"
- event on-client-session-end
-
- ot-scope server_session_start
- span "Server session" child-of "HAProxy session"
- finish "Backend HTTP request"
- event on-server-session-start
-
- ot-scope tcp_response
- span "TCP response" child-of "Server session"
- event on-tcp-response
-
- ot-scope http_response
- span "HTTP response" follows-from "TCP response"
- tag "http.status_code" status
- finish "TCP response"
- event on-http-response
-
- ot-scope server_session_end
- finish *
- event on-server-session-end
+++ /dev/null
-#!/bin/sh
-#
-test ${#} -lt 1 && exit 1
-
-awk '/ {$/ { sub(/\(.*/, "", $5); print $5 }' "${@}" | sort | uniq -c
+++ /dev/null
-#!/bin/sh
-#
-_ARG_DIR="${1:-.}"
-
-
-get ()
-{
- local _arg_tracer="${1}"
- local _arg_version="${2}"
- local _arg_url="${3}"
- local _arg_file="${4}"
- local _var_tmpfile="_tmpfile_"
- local _var_plugin="lib${_arg_tracer}_opentracing_plugin-${_arg_version}.so"
-
- test -e "${_var_plugin}" && return 0
-
- wget "https://github.com/${_arg_url}/releases/download/v${_arg_version}/${_arg_file}" -O "${_var_tmpfile}" || {
- rm "${_var_tmpfile}"
- return 1
- }
-
- case "$(file ${_var_tmpfile})" in
- *shared\ object*)
- mv "${_var_tmpfile}" "${_var_plugin}" ;;
-
- *gzip\ compressed\ data*)
- gzip -cd "${_var_tmpfile}" > "${_var_plugin}"
- rm "${_var_tmpfile}" ;;
- esac
-}
-
-
-mkdir -p "${_ARG_DIR}" && cd "${_ARG_DIR}" || exit 1
-
-get dd 1.1.2 DataDog/dd-opentracing-cpp linux-amd64-libdd_opentracing_plugin.so.gz
-get dd 1.2.0 DataDog/dd-opentracing-cpp linux-amd64-libdd_opentracing_plugin.so.gz
-
-get jaeger 0.4.2 jaegertracing/jaeger-client-cpp libjaegertracing_plugin.linux_amd64.so
-#et jaeger 0.5.0 jaegertracing/jaeger-client-cpp libjaegertracing_plugin.linux_amd64.so
-#et jaeger 0.6.0 jaegertracing/jaeger-client-cpp libjaegertracing_plugin.linux_amd64.so
-
-get lightstep 0.12.0 lightstep/lightstep-tracer-cpp linux-amd64-liblightstep_tracer_plugin.so.gz
-get lightstep 0.13.0 lightstep/lightstep-tracer-cpp linux-amd64-liblightstep_tracer_plugin.so.gz
-
-get zipkin 0.5.2 rnburn/zipkin-cpp-opentracing linux-amd64-libzipkin_opentracing_plugin.so.gz
+++ /dev/null
-<html><body><p>Did I err?</p></body></html>
+++ /dev/null
-#!/bin/sh
-#
-_ARG_HAPROXY="${1:-$(realpath -L ${PWD}/../../../haproxy)}"
- _ARGS="-f cmp/haproxy.cfg"
- _LOG_DIR="_logs"
- _LOG="${_LOG_DIR}/_log-$(basename "${0}" .sh)-$(date +%s)"
-
-
-test -x "${_ARG_HAPROXY}" || exit 1
-mkdir -p "${_LOG_DIR}" || exit 2
-
-echo "executing: ${_ARG_HAPROXY} ${_ARGS} > ${_LOG}"
-"${_ARG_HAPROXY}" ${_ARGS} >"${_LOG}" 2>&1
+++ /dev/null
-#!/bin/sh
-#
-_ARG_HAPROXY="${1:-$(realpath -L ${PWD}/../../../haproxy)}"
- _ARGS="-f ctx/haproxy.cfg"
- _LOG_DIR="_logs"
- _LOG="${_LOG_DIR}/_log-$(basename "${0}" .sh)-$(date +%s)"
-
-
-test -x "${_ARG_HAPROXY}" || exit 1
-mkdir -p "${_LOG_DIR}" || exit 2
-
-echo "executing: ${_ARG_HAPROXY} ${_ARGS} > ${_LOG}"
-"${_ARG_HAPROXY}" ${_ARGS} >"${_LOG}" 2>&1
+++ /dev/null
-#!/bin/sh
-#
-_ARG_HAPROXY="${1:-$(realpath -L ${PWD}/../../../haproxy)}"
- _ARGS_FE="-f fe/haproxy.cfg"
- _ARGS_BE="-f be/haproxy.cfg"
- _TIME="$(date +%s)"
- _LOG_DIR="_logs"
- _LOG_FE="${_LOG_DIR}/_log-$(basename "${0}" fe-be.sh)fe-${_TIME}"
- _LOG_BE="${_LOG_DIR}/_log-$(basename "${0}" fe-be.sh)be-${_TIME}"
-
-
-__exit ()
-{
- test -z "${2}" && {
- echo
- echo "Script killed!"
-
- echo "Waiting for jobs to complete..."
- pkill --signal SIGUSR1 haproxy
- wait
- }
-
- test -n "${1}" && {
- echo
- echo "${1}"
- echo
- }
-
- exit ${2:-100}
-}
-
-
-trap __exit INT TERM
-
-test -x "${_ARG_HAPROXY}" || __exit "${_ARG_HAPROXY}: executable does not exist" 1
-mkdir -p "${_LOG_DIR}" || __exit "${_ARG_HAPROXY}: cannot create log directory" 2
-
-echo "\n------------------------------------------------------------------------"
-echo "--- executing: ${_ARG_HAPROXY} ${_ARGS_BE} > ${_LOG_BE}"
-"${_ARG_HAPROXY}" ${_ARGS_BE} >"${_LOG_BE}" 2>&1 &
-
-echo "--- executing: ${_ARG_HAPROXY} ${_ARGS_FE} > ${_LOG_FE}"
-"${_ARG_HAPROXY}" ${_ARGS_FE} >"${_LOG_FE}" 2>&1 &
-echo "------------------------------------------------------------------------\n"
-
-echo "Press CTRL-C to quit..."
-wait
+++ /dev/null
-#!/bin/sh
-#
-_ARG_HAPROXY="${1:-$(realpath -L ${PWD}/../../../haproxy)}"
- _ARGS="-f sa/haproxy.cfg"
- _LOG_DIR="_logs"
- _LOG="${_LOG_DIR}/_log-$(basename "${0}" .sh)-$(date +%s)"
-
-
-test -x "${_ARG_HAPROXY}" || exit 1
-mkdir -p "${_LOG_DIR}" || exit 2
-
-echo "executing: ${_ARG_HAPROXY} ${_ARGS} > ${_LOG}"
-"${_ARG_HAPROXY}" ${_ARGS} >"${_LOG}" 2>&1
+++ /dev/null
-{
- "service": "SA",
- "agent_host": "localhost",
- "agent_port": 8126
-}
+++ /dev/null
-service_name:
- SA
-
-###
-# When using configuration object to instantiate the tracer, the type of
-# sampling can be selected via sampler.type and sampler.param properties.
-# Jaeger libraries support the following samplers:
-#
-# - Constant (sampler.type=const) sampler always makes the same decision for
-# all traces. It either samples all traces (sampler.param=1) or none of
-# them (sampler.param=0).
-#
-# - Probabilistic (sampler.type=probabilistic) sampler makes a random sampling
-# decision with the probability of sampling equal to the value of
-# sampler.param property. For example, with sampler.param=0.1 approximately
-# 1 in 10 traces will be sampled.
-#
-# - Rate Limiting (sampler.type=ratelimiting) sampler uses a leaky bucket rate
-# limiter to ensure that traces are sampled with a certain constant rate.
-# For example, when sampler.param=2.0 it will sample requests with the rate
-# of 2 traces per second.
-#
-# - Remote (sampler.type=remote, which is also the default) sampler consults
-# Jaeger agent for the appropriate sampling strategy to use in the current
-# service. This allows controlling the sampling strategies in the services
-# from a central configuration in Jaeger backend, or even dynamically.
-#
-sampler:
- type: ratelimiting
- param: 10.0
-
-reporter:
- logSpans: true
- localAgentHostPort: localhost:6831
+++ /dev/null
-{
- "service_name": "SA",
- "collector_host": "localhost"
-}
+++ /dev/null
-global
-# nbthread 1
- maxconn 5000
- hard-stop-after 10s
-# log localhost:514 local7 debug
-# debug
- stats socket /tmp/haproxy.sock mode 666 level admin
-
-defaults
- log global
- mode http
- option httplog
- option dontlognull
- option httpclose
- retries 3
- maxconn 4000
- timeout connect 5000
- timeout client 50000
- timeout server 50000
-
-listen stats
- mode http
- bind *:8001
- stats uri /
- stats admin if TRUE
- stats refresh 10s
-
-frontend ot-test-sa-frontend
- bind *:10080
- mode http
- default_backend servers-backend
-
- acl acl-http-status-ok status 100:399
- filter opentracing id ot-test-sa config sa/ot.cfg
- http-response ot-group ot-test-sa http_response_group if acl-http-status-ok
- http-after-response ot-group ot-test-sa http_after_response_group if !acl-http-status-ok
-
-backend servers-backend
- mode http
- server server-1 127.0.0.1:8000
+++ /dev/null
-[ot-test-sa]
- ot-tracer ot-test-tracer
- log localhost:514 local7 debug
- config sa/cfg-jaeger.yml
- plugin libjaeger_opentracing_plugin-0.5.0.so
- option dontlog-normal
- option hard-errors
- no option disabled
- rate-limit 100.0
-
- groups http_response_group
- groups http_after_response_group
-
- scopes client_session_start
- scopes frontend_tcp_request
- scopes http_wait_request
- scopes http_body_request
- scopes frontend_http_request
- scopes switching_rules_request
- scopes backend_tcp_request
- scopes backend_http_request
- scopes process_server_rules_request
- scopes http_process_request
- scopes tcp_rdp_cookie_request
- scopes process_sticking_rules_request
- scopes client_session_end
- scopes server_unavailable
-
- scopes server_session_start
- scopes tcp_response
- scopes http_wait_response
- scopes process_store_rules_response
- scopes http_response http_response-error
- scopes server_session_end
-
- ot-group http_response_group
- scopes http_response_1
- scopes http_response_2
-
- ot-scope http_response_1
- span "HTTP response"
- log "hdr.content" res.hdr("content-type") str("; length: ") res.hdr("content-length") str(" bytes")
-
- ot-scope http_response_2
- span "HTTP response"
- log "hdr.date" res.hdr("date") str(" / ") res.hdr("last-modified")
-
- ot-group http_after_response_group
- scopes http_after_response
-
- ot-scope http_after_response
- span "HAProxy response" child-of "HAProxy session"
- tag "error" bool(true)
- tag "http.status_code" status
-
- ot-scope client_session_start
- span "HAProxy session" root
- baggage "haproxy_id" var(sess.ot.uuid)
- span "Client session" child-of "HAProxy session"
- acl acl-test-src-ip src 127.0.0.1
- event on-client-session-start if acl-test-src-ip
-
- ot-scope frontend_tcp_request
- span "Frontend TCP request" child-of "Client session"
- event on-frontend-tcp-request
-
- ot-scope http_wait_request
- span "HTTP wait request" follows-from "Frontend TCP request"
- finish "Frontend TCP request"
- event on-http-wait-request
-
- ot-scope http_body_request
- span "HTTP body request" follows-from "HTTP wait request"
- finish "HTTP wait request"
- event on-http-body-request
-
- ot-scope frontend_http_request
- span "Frontend HTTP request" follows-from "HTTP body request"
- tag "http.method" method
- tag "http.url" url
- tag "http.version" str("HTTP/") req.ver
- finish "HTTP body request"
- event on-frontend-http-request
-
- ot-scope switching_rules_request
- span "Switching rules request" follows-from "Frontend HTTP request"
- finish "Frontend HTTP request"
- event on-switching-rules-request
-
- ot-scope backend_tcp_request
- span "Backend TCP request" follows-from "Switching rules request"
- finish "Switching rules request"
- event on-backend-tcp-request
-
- ot-scope backend_http_request
- span "Backend HTTP request" follows-from "Backend TCP request"
- finish "Backend TCP request"
- event on-backend-http-request
-
- ot-scope process_server_rules_request
- span "Process server rules request" follows-from "Backend HTTP request"
- finish "Backend HTTP request"
- event on-process-server-rules-request
-
- ot-scope http_process_request
- span "HTTP process request" follows-from "Process server rules request"
- finish "Process server rules request"
- event on-http-process-request
-
- ot-scope tcp_rdp_cookie_request
- span "TCP RDP cookie request" follows-from "HTTP process request"
- finish "HTTP process request"
- event on-tcp-rdp-cookie-request
-
- ot-scope process_sticking_rules_request
- span "Process sticking rules request" follows-from "TCP RDP cookie request"
- finish "TCP RDP cookie request"
- event on-process-sticking-rules-request
-
- ot-scope client_session_end
- finish "Client session"
- event on-client-session-end
-
- ot-scope server_unavailable
- finish *
- event on-server-unavailable
-
- ot-scope server_session_start
- span "Server session" child-of "HAProxy session"
- finish "Process sticking rules request"
- event on-server-session-start
-
- ot-scope tcp_response
- span "TCP response" child-of "Server session"
- event on-tcp-response
-
- ot-scope http_wait_response
- span "HTTP wait response" follows-from "TCP response"
- finish "TCP response"
- event on-http-wait-response
-
- ot-scope process_store_rules_response
- span "Process store rules response" follows-from "HTTP wait response"
- finish "HTTP wait response"
- event on-process-store-rules-response
-
- ot-scope http_response
- span "HTTP response" follows-from "Process store rules response"
- tag "http.status_code" status
- finish "Process store rules response"
- event on-http-response
-
- ot-scope http_response-error
- span "HTTP response"
- tag "error" bool(true)
- event on-http-response if !acl-http-status-ok
-
- ot-scope server_session_end
- finish *
- event on-server-session-end
+++ /dev/null
-#!/bin/sh
-#
- _ARG_CFG="${1}"
- _ARG_DIR="${2:-${1}}"
- _LOG_DIR="_logs"
-_HTTPD_PIDFILE="${_LOG_DIR}/thttpd.pid"
- _USAGE_MSG="usage: $(basename "${0}") cfg [dir]"
-
-
-sh_exit ()
-{
- test -z "${2}" && {
- echo
- echo "Script killed!"
- }
-
- test -n "${1}" && {
- echo
- echo "${1}"
- echo
- }
-
- exit ${2:-64}
-}
-
-httpd_run ()
-{
-
- test -e "${_HTTPD_PIDFILE}" && return
-
- thttpd -p 8000 -d . -nos -nov -l /dev/null -i "${_HTTPD_PIDFILE}"
-}
-
-httpd_stop ()
-{
- test -e "${_HTTPD_PIDFILE}" || return
-
- kill -TERM "$(cat ${_HTTPD_PIDFILE})"
- rm "${_HTTPD_PIDFILE}"
-}
-
-haproxy_run ()
-{
- _arg_ratio="${1}"
- _var_sed_ot=
- _var_sed_haproxy=
-
- if test "${_arg_ratio}" = "disabled"; then
- _var_sed_ot="s/no \(option disabled\)/\1/"
- elif test "${_arg_ratio}" = "off"; then
- _var_sed_haproxy="s/^\(.* filter opentracing .*\)/#\1/g; s/^\(.* ot-group .*\)/#\1/g"
- else
- _var_sed_ot="s/\(rate-limit\) 100.0/\1 ${_arg_ratio}/"
- fi
-
- sed "${_var_sed_haproxy}" "${_ARG_DIR}/haproxy.cfg.in" > "${_ARG_DIR}/haproxy.cfg"
- sed "${_var_sed_ot}" "${_ARG_DIR}/ot.cfg.in" > "${_ARG_DIR}/ot.cfg"
-
- if test "${_ARG_DIR}" = "fe"; then
- if test "${_arg_ratio}" = "disabled" -o "${_arg_ratio}" = "off"; then
- sed "${_var_sed_haproxy}" "be/haproxy.cfg.in" > "be/haproxy.cfg"
- sed "${_var_sed_ot}" "be/ot.cfg.in" > "be/ot.cfg"
- fi
- fi
-
- ./run-${_ARG_CFG}.sh &
- sleep 5
-}
-
-wrk_run ()
-{
- _arg_ratio="${1}"
-
- echo "--- rate-limit ${_arg_ratio} --------------------------------------------------"
- wrk -c8 -d300 -t8 --latency http://localhost:10080/index.html
- echo "----------------------------------------------------------------------"
- echo
-
- sleep 10
-}
-
-
-command -v thttpd >/dev/null 2>&1 || sh_exit "thttpd: command not found" 5
-command -v wrk >/dev/null 2>&1 || sh_exit "wrk: command not found" 6
-
-mkdir -p "${_LOG_DIR}" || sh_exit "${_LOG_DIR}: Cannot create log directory" 1
-
-if test "${_ARG_CFG}" = "all"; then
- "${0}" fe-be fe > "${_LOG_DIR}/README-speed-fe-be"
- "${0}" sa sa > "${_LOG_DIR}/README-speed-sa"
- "${0}" cmp cmp > "${_LOG_DIR}/README-speed-cmp"
- "${0}" ctx ctx > "${_LOG_DIR}/README-speed-ctx"
- exit 0
-fi
-
-test -z "${_ARG_CFG}" -o -z "${_ARG_DIR}" && sh_exit "${_USAGE_MSG}" 4
-test -f "run-${_ARG_CFG}.sh" || sh_exit "run-${_ARG_CFG}.sh: No such configuration script" 2
-test -d "${_ARG_DIR}" || sh_exit "${_ARG_DIR}: No such directory" 3
-
-test -e "${_ARG_DIR}/haproxy.cfg.in" || cp -af "${_ARG_DIR}/haproxy.cfg" "${_ARG_DIR}/haproxy.cfg.in"
-test -e "${_ARG_DIR}/ot.cfg.in" || cp -af "${_ARG_DIR}/ot.cfg" "${_ARG_DIR}/ot.cfg.in"
-if test "${_ARG_DIR}" = "fe"; then
- test -e "be/haproxy.cfg.in" || cp -af "be/haproxy.cfg" "be/haproxy.cfg.in"
- test -e "be/ot.cfg.in" || cp -af "be/ot.cfg" "be/ot.cfg.in"
-fi
-
-httpd_run
-
-for _var_ratio in 100.0 50.0 10.0 2.5 0.0 disabled off; do
- haproxy_run "${_var_ratio}"
- wrk_run "${_var_ratio}"
-
- pkill --signal SIGUSR1 haproxy
- wait
-done
-
-httpd_stop
9.6. OpenTracing
----------------
-The OpenTracing filter adds native support for using distributed tracing in
-HAProxy. This is enabled by sending an OpenTracing compliant request to one
-of the supported tracers such as Datadog, Jaeger, Lightstep and Zipkin tracers.
-Please note: tracers are not listed by any preference, but alphabetically.
-
-This feature is only enabled when HAProxy was built with USE_OT=1.
-
-The OpenTracing filter activation is done explicitly by specifying it in the
-HAProxy configuration. If this is not done, the OpenTracing filter in no way
-participates in the work of HAProxy.
-
-filter opentracing [id <id>] config <file>
-
- Arguments :
-
- <id> is the OpenTracing filter id that will be used to find the
- right scope in the configuration file. If no filter id is
- specified, 'ot-filter' is used as default. If scope is not
- specified in the configuration file, it applies to all defined
- OpenTracing filters.
-
- <file> is the path of the OpenTracing configuration file. The same
- file can contain configurations for multiple OpenTracing
- filters simultaneously. In that case we do not need to define
- scope so the same configuration applies to all filters or each
- filter must have its own scope defined.
-
-More detailed documentation related to the operation, configuration and use
-of the filter can be found in the addons/ot directory.
-
-Note: The OpenTracing filter shouldn't be used for new designs as OpenTracing
- itself is no longer maintained nor supported by its authors. As such
- OpenTracing will be deprecated in 3.3 and removed in 3.5. A replacement
- filter based on OpenTelemetry is available since 3.4 with complete build
- instructions currently at:
+The OpenTracing filter was removed in version 3.5. A replacement filter based
+on OpenTelemetry is available since 3.4 with complete build instructions
+currently at:
https://github.com/haproxytech/haproxy-opentelemetry/
ARGC_UBK, /* use_backend message */
ARGC_USRV, /* use-server message */
ARGC_HERR, /* http-error */
- ARGC_OT, /* opentracing scope args */
ARGC_OPT, /* option directive */
ARGC_TCO, /* tcp-request connection expression */
ARGC_TSE, /* tcp-request session expression */
+++ /dev/null
-#!/bin/bash
-
-#
-# OT helper. script built from documentation: https://github.com/haproxytech/opentracing-c-wrapper
-#
-
-set -e
-
-OT_CPP_VERSION="${OT_CPP_VERSION:-1.6.0}"
-OT_PREFIX="${OT_PREFIX:-${HOME}/opt}"
-
-wget -P download-cache/ "https://github.com/opentracing/opentracing-cpp/archive/v${OT_CPP_VERSION}.tar.gz"
-
-tar xf download-cache/v${OT_CPP_VERSION}.tar.gz
-cd opentracing-cpp-${OT_CPP_VERSION}
-mkdir build
-cd build
-cmake -DCMAKE_INSTALL_PREFIX=${OT_PREFIX} -DBUILD_STATIC_LIBS=OFF -DBUILD_MOCKTRACER=OFF -DBUILD_TESTING=OFF ..
-make -j$(nproc)
-make install
-
-git clone https://github.com/haproxytech/opentracing-c-wrapper.git
-cd opentracing-c-wrapper
- ./scripts/bootstrap
- ./configure --prefix=${OT_PREFIX} --with-opentracing=${OT_PREFIX}
- make -j$(nproc)
- make install
case ARGC_UBK: where = "in use_backend expression in"; break;
case ARGC_USRV: where = "in use-server or balance expression in"; break;
case ARGC_HERR: where = "in http-error directive in"; break;
- case ARGC_OT: where = "in ot-scope directive in"; break;
case ARGC_OPT: where = "in option directive in"; break;
case ARGC_TCO: where = "in tcp-request connection expression in"; break;
case ARGC_TSE: where = "in tcp-request session expression in"; break;
projects / haproxy.git / commitdiff