From: Christopher Faulet <cfaulet@haproxy.com>
Date: Thu, 18 Sep 2025 06:29:05 +0000 (+0200)
Subject: MINOR: mux-h1: Set known input payload length during demux
X-Git-Tag: v3.3-dev10~56
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2bf2f68cd833659e75a90b366520407c0839de08;p=thirdparty%2Fhaproxy.git

MINOR: mux-h1: Set known input payload length during demux

Set <kip> value during the message parsing. The difference between the body
length before and after a parsing loop is added. The patch relies on the
previous one ("MINOR: h1-htx: Increment body len when parsing a payload with
no xfer length").
---

diff --git a/src/mux_h1.c b/src/mux_h1.c
index c3c512d89..df248a460 100644
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -2128,11 +2128,13 @@ static size_t h1_process_demux(struct h1c *h1c, struct buffer *buf, size_t count
 	size_t data;
 	size_t ret = 0;
 	size_t total = 0;
+	uint64_t prev_body_len;
 
 	htx = htx_from_buf(buf);
 	TRACE_ENTER(H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){count});
 
 	h1m = (!(h1c->flags & H1C_F_IS_BACK) ? &h1s->req : &h1s->res);
+	prev_body_len = h1m->body_len;
 	data = htx->data;
 
 	if (h1s->flags & H1S_F_DEMUX_ERROR)
@@ -2257,6 +2259,7 @@ static size_t h1_process_demux(struct h1c *h1c, struct buffer *buf, size_t count
 	}
 
 	b_del(&h1c->ibuf, total);
+	h1s->sd->kip += (h1m->body_len - prev_body_len);
 
 	TRACE_DEVEL("incoming data parsed", H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){ret});