--- /dev/null
+
+/*
+ * Copyright (C) Nginx, Inc.
+ * Copyright (C) Roman Arutyunyan
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_stream.h>
+
+
+static ngx_int_t ngx_stream_variable_quic(ngx_stream_session_t *s,
+ ngx_stream_variable_value_t *v, uintptr_t data);
+static ngx_int_t ngx_stream_quic_add_variables(ngx_conf_t *cf);
+static void *ngx_stream_quic_create_srv_conf(ngx_conf_t *cf);
+static char *ngx_stream_quic_merge_srv_conf(ngx_conf_t *cf, void *parent,
+ void *child);
+static char *ngx_stream_quic_max_ack_delay(ngx_conf_t *cf, void *post,
+ void *data);
+static char *ngx_stream_quic_max_udp_payload_size(ngx_conf_t *cf, void *post,
+ void *data);
+
+
+static ngx_conf_post_t ngx_stream_quic_max_ack_delay_post =
+ { ngx_stream_quic_max_ack_delay };
+static ngx_conf_post_t ngx_stream_quic_max_udp_payload_size_post =
+ { ngx_stream_quic_max_udp_payload_size };
+static ngx_conf_num_bounds_t ngx_stream_quic_ack_delay_exponent_bounds =
+ { ngx_conf_check_num_bounds, 0, 20 };
+static ngx_conf_num_bounds_t
+ ngx_stream_quic_active_connection_id_limit_bounds =
+ { ngx_conf_check_num_bounds, 2, -1 };
+
+
+static ngx_command_t ngx_stream_quic_commands[] = {
+
+ { ngx_string("quic_max_idle_timeout"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_msec_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.max_idle_timeout),
+ NULL },
+
+ { ngx_string("quic_max_ack_delay"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_msec_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.max_ack_delay),
+ &ngx_stream_quic_max_ack_delay_post },
+
+ { ngx_string("quic_max_udp_payload_size"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_size_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.max_udp_payload_size),
+ &ngx_stream_quic_max_udp_payload_size_post },
+
+ { ngx_string("quic_initial_max_data"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_size_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.initial_max_data),
+ NULL },
+
+ { ngx_string("quic_initial_max_stream_data_bidi_local"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_size_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.initial_max_stream_data_bidi_local),
+ NULL },
+
+ { ngx_string("quic_initial_max_stream_data_bidi_remote"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_size_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.initial_max_stream_data_bidi_remote),
+ NULL },
+
+ { ngx_string("quic_initial_max_stream_data_uni"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_size_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.initial_max_stream_data_uni),
+ NULL },
+
+ { ngx_string("quic_initial_max_streams_bidi"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_num_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.initial_max_streams_bidi),
+ NULL },
+
+ { ngx_string("quic_initial_max_streams_uni"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_num_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.initial_max_streams_uni),
+ NULL },
+
+ { ngx_string("quic_ack_delay_exponent"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_num_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.ack_delay_exponent),
+ &ngx_stream_quic_ack_delay_exponent_bounds },
+
+ { ngx_string("quic_active_migration"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_num_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.disable_active_migration),
+ NULL },
+
+ { ngx_string("quic_active_connection_id_limit"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_num_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, tp.active_connection_id_limit),
+ &ngx_stream_quic_active_connection_id_limit_bounds },
+
+ { ngx_string("quic_retry"),
+ NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG,
+ ngx_conf_set_flag_slot,
+ NGX_STREAM_SRV_CONF_OFFSET,
+ offsetof(ngx_quic_conf_t, retry),
+ NULL },
+
+ ngx_null_command
+};
+
+
+static ngx_stream_module_t ngx_stream_quic_module_ctx = {
+ ngx_stream_quic_add_variables, /* preconfiguration */
+ NULL, /* postconfiguration */
+
+ NULL, /* create main configuration */
+ NULL, /* init main configuration */
+
+ ngx_stream_quic_create_srv_conf, /* create server configuration */
+ ngx_stream_quic_merge_srv_conf, /* merge server configuration */
+};
+
+
+ngx_module_t ngx_stream_quic_module = {
+ NGX_MODULE_V1,
+ &ngx_stream_quic_module_ctx, /* module context */
+ ngx_stream_quic_commands, /* module directives */
+ NGX_STREAM_MODULE, /* module type */
+ NULL, /* init master */
+ NULL, /* init module */
+ NULL, /* init process */
+ NULL, /* init thread */
+ NULL, /* exit thread */
+ NULL, /* exit process */
+ NULL, /* exit master */
+ NGX_MODULE_V1_PADDING
+};
+
+
+static ngx_stream_variable_t ngx_stream_quic_vars[] = {
+
+ { ngx_string("quic"), NULL, ngx_stream_variable_quic, 0, 0, 0 },
+
+ ngx_stream_null_variable
+};
+
+
+static ngx_int_t
+ngx_stream_variable_quic(ngx_stream_session_t *s,
+ ngx_stream_variable_value_t *v, uintptr_t data)
+{
+ if (s->connection->qs) {
+
+ v->len = 4;
+ v->valid = 1;
+ v->no_cacheable = 1;
+ v->not_found = 0;
+ v->data = (u_char *) "quic";
+ return NGX_OK;
+ }
+
+ v->not_found = 1;
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_stream_quic_add_variables(ngx_conf_t *cf)
+{
+ ngx_stream_variable_t *var, *v;
+
+ for (v = ngx_stream_quic_vars; v->name.len; v++) {
+ var = ngx_stream_add_variable(cf, &v->name, v->flags);
+ if (var == NULL) {
+ return NGX_ERROR;
+ }
+
+ var->get_handler = v->get_handler;
+ var->data = v->data;
+ }
+
+ return NGX_OK;
+}
+
+
+static void *
+ngx_stream_quic_create_srv_conf(ngx_conf_t *cf)
+{
+ ngx_quic_conf_t *conf;
+
+ conf = ngx_pcalloc(cf->pool, sizeof(ngx_quic_conf_t));
+ if (conf == NULL) {
+ return NULL;
+ }
+
+ /*
+ * set by ngx_pcalloc():
+ *
+ * conf->tp.original_dcid = { 0, NULL };
+ * conf->tp.initial_scid = { 0, NULL };
+ * conf->tp.retry_scid = { 0, NULL };
+ * conf->tp.stateless_reset_token = { 0 }
+ * conf->tp.preferred_address = NULL
+ * conf->require_alpn = 0;
+ */
+
+ conf->tp.max_idle_timeout = NGX_CONF_UNSET_MSEC;
+ conf->tp.max_ack_delay = NGX_CONF_UNSET_MSEC;
+ conf->tp.max_udp_payload_size = NGX_CONF_UNSET_SIZE;
+ conf->tp.initial_max_data = NGX_CONF_UNSET_SIZE;
+ conf->tp.initial_max_stream_data_bidi_local = NGX_CONF_UNSET_SIZE;
+ conf->tp.initial_max_stream_data_bidi_remote = NGX_CONF_UNSET_SIZE;
+ conf->tp.initial_max_stream_data_uni = NGX_CONF_UNSET_SIZE;
+ conf->tp.initial_max_streams_bidi = NGX_CONF_UNSET_UINT;
+ conf->tp.initial_max_streams_uni = NGX_CONF_UNSET_UINT;
+ conf->tp.ack_delay_exponent = NGX_CONF_UNSET_UINT;
+ conf->tp.disable_active_migration = NGX_CONF_UNSET_UINT;
+ conf->tp.active_connection_id_limit = NGX_CONF_UNSET_UINT;
+
+ conf->retry = NGX_CONF_UNSET;
+
+ return conf;
+}
+
+
+static char *
+ngx_stream_quic_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
+{
+ ngx_quic_conf_t *prev = parent;
+ ngx_quic_conf_t *conf = child;
+
+ ngx_conf_merge_msec_value(conf->tp.max_idle_timeout,
+ prev->tp.max_idle_timeout, 60000);
+
+ ngx_conf_merge_msec_value(conf->tp.max_ack_delay,
+ prev->tp.max_ack_delay,
+ NGX_QUIC_DEFAULT_MAX_ACK_DELAY);
+
+ ngx_conf_merge_size_value(conf->tp.max_udp_payload_size,
+ prev->tp.max_udp_payload_size,
+ NGX_QUIC_MAX_UDP_PAYLOAD_SIZE);
+
+ ngx_conf_merge_size_value(conf->tp.initial_max_data,
+ prev->tp.initial_max_data,
+ 16 * NGX_QUIC_STREAM_BUFSIZE);
+
+ ngx_conf_merge_size_value(conf->tp.initial_max_stream_data_bidi_local,
+ prev->tp.initial_max_stream_data_bidi_local,
+ NGX_QUIC_STREAM_BUFSIZE);
+
+ ngx_conf_merge_size_value(conf->tp.initial_max_stream_data_bidi_remote,
+ prev->tp.initial_max_stream_data_bidi_remote,
+ NGX_QUIC_STREAM_BUFSIZE);
+
+ ngx_conf_merge_size_value(conf->tp.initial_max_stream_data_uni,
+ prev->tp.initial_max_stream_data_uni,
+ NGX_QUIC_STREAM_BUFSIZE);
+
+ ngx_conf_merge_uint_value(conf->tp.initial_max_streams_bidi,
+ prev->tp.initial_max_streams_bidi, 16);
+
+ ngx_conf_merge_uint_value(conf->tp.initial_max_streams_uni,
+ prev->tp.initial_max_streams_uni, 16);
+
+ ngx_conf_merge_uint_value(conf->tp.ack_delay_exponent,
+ prev->tp.ack_delay_exponent,
+ NGX_QUIC_DEFAULT_ACK_DELAY_EXPONENT);
+
+ ngx_conf_merge_uint_value(conf->tp.disable_active_migration,
+ prev->tp.disable_active_migration, 1);
+
+ ngx_conf_merge_uint_value(conf->tp.active_connection_id_limit,
+ prev->tp.active_connection_id_limit, 2);
+
+ ngx_conf_merge_value(conf->retry, prev->retry, 0);
+
+ if (conf->retry) {
+ if (RAND_bytes(conf->token_key, sizeof(conf->token_key)) <= 0) {
+ return NGX_CONF_ERROR;
+ }
+ }
+
+ return NGX_CONF_OK;
+}
+
+
+static char *
+ngx_stream_quic_max_ack_delay(ngx_conf_t *cf, void *post, void *data)
+{
+ ngx_msec_t *sp = data;
+
+ if (*sp > 16384) {
+ ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+ "\"quic_max_ack_delay\" must be less than 16384");
+
+ return NGX_CONF_ERROR;
+ }
+
+ return NGX_CONF_OK;
+}
+
+
+static char *
+ngx_stream_quic_max_udp_payload_size(ngx_conf_t *cf, void *post, void *data)
+{
+ size_t *sp = data;
+
+ if (*sp < NGX_QUIC_MIN_INITIAL_SIZE
+ || *sp > NGX_QUIC_MAX_UDP_PAYLOAD_SIZE)
+ {
+ ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+ "\"quic_max_udp_payload_size\" must be between "
+ "%d and %d",
+ NGX_QUIC_MIN_INITIAL_SIZE,
+ NGX_QUIC_MAX_UDP_PAYLOAD_SIZE);
+
+ return NGX_CONF_ERROR;
+ }
+
+ return NGX_CONF_OK;
+}
projects / nginx.git / commitdiff