diff options
Diffstat (limited to 'contrib/libpcap/gencode.c')
| -rw-r--r-- | contrib/libpcap/gencode.c | 56 |
1 files changed, 51 insertions, 5 deletions
diff --git a/contrib/libpcap/gencode.c b/contrib/libpcap/gencode.c index 770a956..fd16c13 100644 --- a/contrib/libpcap/gencode.c +++ b/contrib/libpcap/gencode.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996 + * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -20,7 +20,7 @@ */ #ifndef lint static const char rcsid[] = - "@(#) $Header: gencode.c,v 1.91 96/12/11 19:10:23 leres Exp $ (LBL)"; + "@(#) $Header: gencode.c,v 1.94 98/07/12 13:06:49 leres Exp $ (LBL)"; #endif #include <sys/types.h> @@ -50,6 +50,7 @@ struct rtentry; #include "ethertype.h" #include "gencode.h" +#include "ppp.h" #include <pcap-namedb.h> #include "gnuc.h" @@ -473,6 +474,13 @@ init_linktype(type) off_nl = 16; return; + case DLT_SLIP_BSDOS: + /* XXX this may be the same as the DLT_PPP_BSDOS case */ + off_linktype = -1; + /* XXX end */ + off_nl = 24; + return; + case DLT_NULL: off_linktype = 0; off_nl = 4; @@ -483,6 +491,11 @@ init_linktype(type) off_nl = 4; return; + case DLT_PPP_BSDOS: + off_linktype = 5; + off_nl = 24; + return; + case DLT_FDDI: /* * FDDI doesn't really have a link-level type field. @@ -551,8 +564,10 @@ gen_false() static struct block * gen_linktype(proto) - int proto; + register int proto; { + struct block *b0, *b1; + /* If we're not using encapsulation and checking for IP, we're done */ if (off_linktype == -1 && proto == ETHERTYPE_IP) return gen_true(); @@ -564,13 +579,38 @@ gen_linktype(proto) case DLT_PPP: if (proto == ETHERTYPE_IP) - proto = 0x0021; /* XXX - need ppp.h defs */ + proto = PPP_IP; /* XXX was 0x21 */ + break; + + case DLT_PPP_BSDOS: + switch (proto) { + + case ETHERTYPE_IP: + b0 = gen_cmp(off_linktype, BPF_H, PPP_IP); + b1 = gen_cmp(off_linktype, BPF_H, PPP_VJC); + gen_or(b0, b1); + b0 = gen_cmp(off_linktype, BPF_H, PPP_VJNC); + gen_or(b1, b0); + return b0; + + case ETHERTYPE_DN: + proto = PPP_DECNET; + break; + + case ETHERTYPE_ATALK: + proto = PPP_APPLE; + break; + + case ETHERTYPE_NS: + proto = PPP_NS; + break; + } break; case DLT_NULL: /* XXX */ if (proto == ETHERTYPE_IP) - return (gen_cmp(0, BPF_W, (bpf_int32)AF_INET)); + return (gen_cmp(0, BPF_W, (bpf_int32)htonl(AF_INET))); else return gen_false(); } @@ -1333,11 +1373,17 @@ gen_mcode(s1, s2, masklen, q) mlen = __pcap_atoin(s2, &m); /* Promote short ipaddr */ m <<= 32 - mlen; + if ((n & ~m) != 0) + bpf_error("non-network bits set in \"%s mask %s\"", + s1, s2); } else { /* Convert mask len to mask */ if (masklen > 32) bpf_error("mask length must be <= 32"); m = 0xffffffff << (32 - masklen); + if ((n & ~m) != 0) + bpf_error("non-network bits set in \"%s/%d\"", + s1, masklen); } switch (q.addr) { |
