From: Florin Coras <fcoras@cisco.com>
Date: Fri, 28 Mar 2025 18:05:10 +0000 (-0400)
Subject: http: leave space for msg header on transport method
X-Git-Tag: v25.10-rc0~133
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=refs%2Fchanges%2F89%2F42589%2F3;p=vpp.git

http: leave space for msg header on transport method

Type: fix

Change-Id: I4bcc9c6168c18ccf5701b832c26b16d3bb24bc98
Signed-off-by: Florin Coras <fcoras@cisco.com>
---

diff --git a/src/plugins/http/http1.c b/src/plugins/http/http1.c
index 258330e87ba..265f6e7b24f 100644
--- a/src/plugins/http/http1.c
+++ b/src/plugins/http/http1.c
@@ -998,6 +998,7 @@ http1_req_state_wait_transport_method (http_conn_t *hc, http_req_t *req,
   /* send at least "control data" which is necessary minimum,
    * if there is some space send also portion of body */
   max_enq = http_io_as_max_write (req);
+  max_enq -= sizeof (msg);
   if (max_enq < req->control_data_len)
     {
       clib_warning ("not enough room for control data in app's rx fifo");