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BUG/MINOR: backend: inspect request not response buffer to check for TFO

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In 2.6, do_connect_server() was introduced by commit 0a4dcb65f ("MINOR:
stream-int/backend: Move si_connect() in the backend scope") and changed
the approach to work with a stream instead of a stream-interface. However
si_oc(si) was wrongly turned to &s->res instead of &s->req, which breaks
TFO by always inspecting the response channel to figure whether there are
data pending.

This fix can be backported to all versions till 2.6.
This commit is contained in:
Willy Tarreau 2025-12-31 12:35:24 +01:00
parent 799653d536
commit 933cb76461
1 changed files with 1 additions and 1 deletions
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2
src/backend.c
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@ -1445,7 +1445,7 @@ static int do_connect_server(struct stream *s, struct connection *conn)
if (unlikely(!conn || !conn->ctrl || !conn->ctrl->connect))
return SF_ERR_INTERNAL;
if (co_data(&s->res))
if (co_data(&s->req))
conn_flags |= CONNECT_HAS_DATA;
if (s->conn_retries == 0)
conn_flags |= CONNECT_CAN_USE_TFO;