From eeb8a9f56f727d2543c8ae7feae0de784e329b27 Mon Sep 17 00:00:00 2001
From: Roman Arutyunyan <arut@nginx.com>
Date: Mon, 14 Aug 2023 09:21:27 +0400
Subject: QUIC: path MTU discovery.

MTU selection starts by doubling the initial MTU until the first failure.
Then binary search is used to find the path MTU.
---
 src/core/ngx_connection.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/core/ngx_connection.c')

diff --git a/src/core/ngx_connection.c b/src/core/ngx_connection.c
index 10f4d9b91..75809d9ad 100644
--- a/src/core/ngx_connection.c
+++ b/src/core/ngx_connection.c
@@ -1583,6 +1583,10 @@ ngx_connection_error(ngx_connection_t *c, ngx_err_t err, char *text)
     }
 #endif
 
+    if (err == NGX_EMSGSIZE && c->log_error == NGX_ERROR_IGNORE_EMSGSIZE) {
+        return 0;
+    }
+
     if (err == 0
         || err == NGX_ECONNRESET
 #if (NGX_WIN32)
@@ -1600,6 +1604,7 @@ ngx_connection_error(ngx_connection_t *c, ngx_err_t err, char *text)
     {
         switch (c->log_error) {
 
+        case NGX_ERROR_IGNORE_EMSGSIZE:
         case NGX_ERROR_IGNORE_EINVAL:
         case NGX_ERROR_IGNORE_ECONNRESET:
         case NGX_ERROR_INFO:
-- 
cgit