diff options
| author | alex <alex@FreeBSD.org> | 1998-01-05 00:08:57 +0000 |
|---|---|---|
| committer | alex <alex@FreeBSD.org> | 1998-01-05 00:08:57 +0000 |
| commit | 147e6a553f204d1b1231faaf9b5f7c1e3f1ad1da (patch) | |
| tree | c46e07fe305206129c5a8a515ead86fa6faacad7 /sys/netinet | |
| parent | 44f7a5e2007f5b380ee895ff9c5050b692521544 (diff) | |
| download | FreeBSD-src-147e6a553f204d1b1231faaf9b5f7c1e3f1ad1da.zip FreeBSD-src-147e6a553f204d1b1231faaf9b5f7c1e3f1ad1da.tar.gz | |
Bound the ICMP type bitmap now that it doesn't cover all possible
ICMP type values.
Diffstat (limited to 'sys/netinet')
| -rw-r--r-- | sys/netinet/ip_fw.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/netinet/ip_fw.c b/sys/netinet/ip_fw.c index 1a4523d..1ae0fab 100644 --- a/sys/netinet/ip_fw.c +++ b/sys/netinet/ip_fw.c @@ -12,7 +12,7 @@ * * This software is provided ``AS IS'' without any warranties of any kind. * - * $Id: ip_fw.c,v 1.67 1997/12/27 18:44:56 alex Exp $ + * $Id: ip_fw.c,v 1.68 1998/01/04 22:36:12 alex Exp $ */ /* @@ -154,7 +154,8 @@ icmptype_match(struct icmp *icmp, struct ip_fw *f) type = icmp->icmp_type; /* check for matching type in the bitmap */ - if (f->fw_icmptypes[type / (sizeof(unsigned) * 8)] & + if (type < IP_FW_ICMPTYPES_DIM * sizeof(unsigned) * 8 && + f->fw_icmptypes[type / (sizeof(unsigned) * 8)] & (1U << (type % (8 * sizeof(unsigned))))) return(1); |
