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fixed bug : SYN packet should provide the recv MSS not the send MSS

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This commit is contained in:
goldsimon 2012-03-27 20:18:23 +02:00
parent fe7bbae8a7
commit 2b9933eb1e
2 changed files with 5 additions and 1 deletions

4
CHANGELOG

@ -66,6 +66,10 @@ HISTORY
++ Bugfixes: ++ Bugfixes:
2012-03-27: Simon Goldschmidt (patch by Mason)
* tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
send MSS
2012-03-22: Simon Goldschmidt 2012-03-22: Simon Goldschmidt
* ip4.c: fixed bug #35927: missing refragmentaion in ip_forward * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward

2
src/core/tcp_out.c

@ -1066,7 +1066,7 @@ tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb)
packets, so ignore it here */ packets, so ignore it here */
opts = (u32_t *)(void *)(seg->tcphdr + 1); opts = (u32_t *)(void *)(seg->tcphdr + 1);
if (seg->flags & TF_SEG_OPTS_MSS) { if (seg->flags & TF_SEG_OPTS_MSS) {
*opts = TCP_BUILD_MSS_OPTION(pcb->mss); *opts = TCP_BUILD_MSS_OPTION(tcp_eff_send_mss(TCP_MSS, &pcb->remote_ip));
opts += 1; opts += 1;
} }
#if LWIP_TCP_TIMESTAMPS #if LWIP_TCP_TIMESTAMPS