From: Vladimir Homutov <vl@nginx.com>
Date: Fri, 22 Oct 2021 09:59:44 +0000 (+0300)
Subject: QUIC: fixed processing of minimum packet size.
X-Git-Url: http://git.kaiwu.me/postgresql/log/contrib/postgres_fdw/postgres_fdw.c?a=commitdiff_plain;h=dbb59fba8ce551a790aada19d4c447efb7545815;p=nginx.git

QUIC: fixed processing of minimum packet size.

If packet needs to be expanded (for example Initial to 1200 bytes),
but path limit is less, such packet should not be created/sent.
---

diff --git a/src/event/quic/ngx_event_quic_output.c b/src/event/quic/ngx_event_quic_output.c
index dbcdb70d5..d7e74a63a 100644
--- a/src/event/quic/ngx_event_quic_output.c
+++ b/src/event/quic/ngx_event_quic_output.c
@@ -184,6 +184,10 @@ ngx_quic_create_datagrams(ngx_connection_t *c, ngx_quic_socket_t *qsock)
             min = (i == pad && p - dst < NGX_QUIC_MIN_INITIAL_SIZE)
                   ? NGX_QUIC_MIN_INITIAL_SIZE - (p - dst) : 0;
 
+            if (min > len) {
+                continue;
+            }
+
             n = ngx_quic_output_packet(c, ctx, p, len, min, qsock);
             if (n == NGX_ERROR) {
                 return NGX_ERROR;