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Fix O_TCPOPTS processing.

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Obtained from:	luigi
This commit is contained in:
Alexander V. Chernikov 2014-10-06 11:15:11 +00:00
parent 9bb47e7068
commit 3615981425
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=272609
1 changed files with 7 additions and 3 deletions
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10
sys/netpfil/ipfw/ip_fw2.c
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@ -1722,9 +1722,13 @@ do { \
break;
case O_TCPOPTS:
PULLUP_LEN(hlen, ulp, (TCP(ulp)->th_off << 2));
match = (proto == IPPROTO_TCP && offset == 0 &&
tcpopts_match(TCP(ulp), cmd));
if (proto == IPPROTO_TCP && ulp != NULL) {
PULLUP_LEN(hlen, ulp,
(TCP(ulp)->th_off << 2));
match = (proto == IPPROTO_TCP &&
offset == 0 &&
tcpopts_match(TCP(ulp), cmd));
}
break;
case O_TCPSEQ: