From: liuyacan <liuyacan@corp.netease.com>
Date: Fri, 20 Aug 2021 02:25:43 +0000 (+0800)
Subject: udp: fill rmt info if session is connection less
X-Git-Tag: v22.02-rc0~73
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=0242fd81ca6d13cad960870df09bf5732b892991;p=vpp.git

udp: fill rmt info if session is connection less

The app may send packet to different remote via sendto() with
same socket (without calling connect()). In such scenario, remote
address need to be filled in.

Type: fix

Signed-off-by: liuyacan <liuyacan@corp.netease.com>
Change-Id: I49deb308668c05442f237e97acc9bfa239782482
---

diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c
index 18fb61d25e9..72df07b1d6d 100644
--- a/src/vnet/session/session_node.c
+++ b/src/vnet/session/session_node.c
@@ -973,7 +973,7 @@ session_tx_fill_buffer (vlib_main_t * vm, session_tx_context_t * ctx,
 	  n_bytes_read = svm_fifo_peek (f, offset, deq_now, data0);
 	  ASSERT (n_bytes_read > 0);
 
-	  if (ctx->s->session_state == SESSION_STATE_LISTENING)
+	  if (transport_connection_is_cless (ctx->tc))
 	    {
 	      ip_copy (&ctx->tc->rmt_ip, &hdr->rmt_ip, ctx->tc->is_ip4);
 	      ctx->tc->rmt_port = hdr->rmt_port;