mirror/lwip
1
0
Fork 0
mirror of https://github.com/lwip-tcpip/lwip.git synced 2024-12-26 03:16:18 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fixed bug #51528 (Bug when parsing WND_SCALE option)

Browse Source 
Signed-off-by: goldsimon <goldsimon@gmx.de>
This commit is contained in:
Pascal Quantin 2017-07-24 21:38:47 +02:00 committed by goldsimon
parent afee9013ad
commit 2e78b6dcae
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/core/tcp_in.c
View File

@ -1900,11 +1900,11 @@ tcp_parseopt(struct tcp_pcb *pcb)
LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n"));
return;
}
/* An WND_SCALE option with the right option length. */
data = tcp_getoptbyte();
/* If syn was received with wnd scale option,
activate wnd scale opt, but only if this is not a retransmission */
if ((flags & TCP_SYN) && !(pcb->flags & TF_WND_SCALE)) {
/* An WND_SCALE option with the right option length. */
data = tcp_getoptbyte();
pcb->snd_scale = data;
if (pcb->snd_scale > 14U) {
pcb->snd_scale = 14U;