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

Don't attempt to display information which we don't have: specifically,

Browse Source 
TCP and UDP port numbers in fragmented packets when IP offset != 0.

2.2.6 candidate.

Discovered by:	Marc Slemko <marcs@znep.com>
Submitted by:	Archie Cobbs <archie@whistle.com> w/fix from me
This commit is contained in:
alex 1998-02-06 02:45:54 +00:00
parent 43b4d8e8e7
commit 922c148870
1 changed files with 13 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
sys/netinet/ip_fw.c
View File

@ -12,7 +12,7 @@
*
* This software is provided ``AS IS'' without any warranties of any kind.
*
* $Id: ip_fw.c,v 1.73 1998/01/08 23:41:52 eivind Exp $
* $Id: ip_fw.c,v 1.74 1998/02/04 22:33:07 eivind Exp $
*/
/*
@ -310,16 +310,24 @@ ipfw_report(struct ip_fw *f, struct ip *ip,
case IPPROTO_TCP:
printf("TCP ");
print_ip(ip->ip_src);
printf(":%d ", ntohs(tcp->th_sport));
if ((ip->ip_off & IP_OFFMASK) == 0)
printf(":%d ", ntohs(tcp->th_sport));
else
printf(" ");
print_ip(ip->ip_dst);
printf(":%d", ntohs(tcp->th_dport));
if ((ip->ip_off & IP_OFFMASK) == 0)
printf(":%d", ntohs(tcp->th_dport));
break;
case IPPROTO_UDP:
printf("UDP ");
print_ip(ip->ip_src);
printf(":%d ", ntohs(udp->uh_sport));
if ((ip->ip_off & IP_OFFMASK) == 0)
printf(":%d ", ntohs(udp->uh_sport));
else
printf(" ");
print_ip(ip->ip_dst);
printf(":%d", ntohs(udp->uh_dport));
if ((ip->ip_off & IP_OFFMASK) == 0)
printf(":%d", ntohs(udp->uh_dport));
break;
case IPPROTO_ICMP:
printf("ICMP:%u.%u ", icmp->icmp_type, icmp->icmp_code);