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BUG/MEDIUM: mux-h1: Always set CS_FL_EOI for response in MSG_DONE state

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During the message parsing, if in MSG_DONE state, the CS_FL_EOI flag must
always be set on the conn-stream if following conditions are met :

  * It is a response or
  * It is a request but not a protocol upgrade nor a CONNECT.

For now, there is no test on the message type (request or response). Thus
the CS_FL_EOI flag is not set for a response with a "Connection: upgrade"
header but not a 101 response.

This bug was introduced by the commit 3e1748bbf ("BUG/MINOR: mux-h1: Don't
set CS_FL_EOI too early for protocol upgrade requests"). It was backported
as far as 2.0. Thus, this patch must also be backported as far as 2.0.
This commit is contained in:
Christopher Faulet 2021-02-08 17:18:01 +01:00
parent bf7175f9b6
commit a22782b597
1 changed files with 7 additions and 3 deletions
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10
src/mux_h1.c
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@ -1681,11 +1681,15 @@ static size_t h1_process_input(struct h1c *h1c, struct buffer *buf, size_t count
h1s->cs->flags &= ~CS_FL_MAY_SPLICE;
}
/* Don't set EOI on the conn-stream for protocol upgrade or connect
* requests, wait the response to do so or not depending on the status
/* Set EOI on conn-stream in DONE state iff:
* - it is a response
* - it is a request but no a protocol upgrade nor a CONNECT
*
* If not set, Wait the response to do so or not depending on the status
* code.
*/
if ((h1m->state == H1_MSG_DONE) && (h1s->meth != HTTP_METH_CONNECT) && !(h1m->flags & H1_MF_CONN_UPG))
if (((h1m->state == H1_MSG_DONE) && (h1m->flags & H1_MF_RESP)) ||
((h1m->state == H1_MSG_DONE) && (h1s->meth != HTTP_METH_CONNECT) && !(h1m->flags & H1_MF_CONN_UPG)))
h1s->cs->flags |= CS_FL_EOI;
if (h1s_data_pending(h1s) && !htx_is_empty(htx))