xfnw/plan9fox
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

tcp: fix mtu on server sockets again (thans mycroftix)

Browse source 
for incoming connection, we used s->laddr to lookup the interface
for the incoming call, but this does not work when the announce
address is tcp!*!123, then s->laddr is all zeros "::". instead,
use the incoming destination address for interface mtu lookup.

thanks mycroftix for troubleshooting!
This commit is contained in:
cinap_lenrek 2015-09-02 01:50:55 +02:00
parent b5737e8726
commit 46926aa502
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
sys/src/9/ip/tcp.c
View file

@ -1771,7 +1771,7 @@ tcpincoming(Conv *s, Tcp *segp, uchar *src, uchar *dst, uchar version)
tcb->flags |= SYNACK;
/* set desired mss and scale */
tcb->mss = tcpmtu(s->p, s->laddr, s->ipversion, &tcb->scale);
tcb->mss = tcpmtu(s->p, dst, s->ipversion, &tcb->scale);
/* our sending max segment size cannot be bigger than what he asked for */
if(lp->mss != 0 && lp->mss < tcb->mss)