d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

MFC 1.10:

Browse Source 
Check that we have first fragment before pulling up TCP/UDP header.

Approved by:	re (kensmith)
This commit is contained in:
glebius 2005-08-10 15:00:57 +00:00
parent 7943163abe
commit ff5247fe56
1 changed files with 14 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
sys/netgraph/netflow/ng_netflow.c
View File

@ -528,19 +528,21 @@ ng_netflow_rcvdata (hook_p hook, item_p item)
break;
}
/*
* In case of IP header with options, we haven't pulled
* up enough, yet.
*/
pullup_len += (ip->ip_hl << 2) - sizeof(struct ip);
if ((ip->ip_off & htons(IP_OFFMASK)) == 0) {
/*
* In case of IP header with options, we haven't pulled
* up enough, yet.
*/
pullup_len += (ip->ip_hl << 2) - sizeof(struct ip);
switch (ip->ip_p) {
case IPPROTO_TCP:
M_CHECK(sizeof(struct tcphdr));
break;
case IPPROTO_UDP:
M_CHECK(sizeof(struct udphdr));
break;
switch (ip->ip_p) {
case IPPROTO_TCP:
M_CHECK(sizeof(struct tcphdr));
break;
case IPPROTO_UDP:
M_CHECK(sizeof(struct udphdr));
break;
}
}
switch (iface->info.ifinfo_dlt) {