diff options
Diffstat (limited to 'gencode.c')
| -rw-r--r-- | gencode.c | 106 |
1 files changed, 28 insertions, 78 deletions
diff --git a/gencode.c b/gencode.c index 532229aae64a..cdb0d34e9f5a 100644 --- a/gencode.c +++ b/gencode.c @@ -107,6 +107,18 @@ static const char rcsid[] _U_ = #define ETHERMTU 1500 +#ifndef IPPROTO_HOPOPTS +#define IPPROTO_HOPOPTS 0 +#endif +#ifndef IPPROTO_ROUTING +#define IPPROTO_ROUTING 43 +#endif +#ifndef IPPROTO_FRAGMENT +#define IPPROTO_FRAGMENT 44 +#endif +#ifndef IPPROTO_DSTOPTS +#define IPPROTO_DSTOPTS 60 +#endif #ifndef IPPROTO_SCTP #define IPPROTO_SCTP 132 #endif @@ -261,20 +273,16 @@ static struct block *gen_gateway(const u_char *, bpf_u_int32 **, int, int); static struct block *gen_ipfrag(void); static struct block *gen_portatom(int, bpf_int32); static struct block *gen_portrangeatom(int, bpf_int32, bpf_int32); -#ifdef INET6 static struct block *gen_portatom6(int, bpf_int32); static struct block *gen_portrangeatom6(int, bpf_int32, bpf_int32); -#endif struct block *gen_portop(int, int, int); static struct block *gen_port(int, int, int); struct block *gen_portrangeop(int, int, int, int); static struct block *gen_portrange(int, int, int, int); -#ifdef INET6 struct block *gen_portop6(int, int, int); static struct block *gen_port6(int, int, int); struct block *gen_portrangeop6(int, int, int, int); static struct block *gen_portrange6(int, int, int, int); -#endif static int lookup_proto(const char *, int); static struct block *gen_protochain(int, int, int); static struct block *gen_proto(int, int, int); @@ -425,6 +433,15 @@ pcap_compile(pcap_t *p, struct bpf_program *program, const char * volatile xbuf = buf; u_int len; + /* + * If this pcap_t hasn't been activated, it doesn't have a + * link-layer type, so we can't use it. + */ + if (!p->activated) { + snprintf(p->errbuf, PCAP_ERRBUF_SIZE, + "not-yet-activated pcap_t passed to pcap_compile"); + return (-1); + } no_optimize = 0; n_errors = 0; root = NULL; @@ -2832,11 +2849,9 @@ ethertype_to_ppptype(proto) proto = PPP_IP; break; -#ifdef INET6 case ETHERTYPE_IPV6: proto = PPP_IPV6; break; -#endif case ETHERTYPE_DN: proto = PPP_DECNET; @@ -3044,11 +3059,10 @@ gen_linktype(proto) case ETHERTYPE_IP: /* Check for a version number of 4. */ return gen_mcmp(OR_LINK, 0, BPF_B, 0x40, 0xF0); -#ifdef INET6 + case ETHERTYPE_IPV6: /* Check for a version number of 6. */ return gen_mcmp(OR_LINK, 0, BPF_B, 0x60, 0xF0); -#endif default: return gen_false(); /* always false */ @@ -3072,10 +3086,8 @@ gen_linktype(proto) /* * Raw IPv6, so no type field. */ -#ifdef INET6 if (proto == ETHERTYPE_IPV6) return gen_true(); /* always true */ -#endif /* Checking for something other than IPv6; always false */ return gen_false(); @@ -3197,11 +3209,9 @@ gen_linktype(proto) if (proto == ETHERTYPE_IP) return (gen_cmp(OR_LINK, offsetof(struct pfloghdr, af), BPF_B, (bpf_int32)AF_INET)); -#ifdef INET6 else if (proto == ETHERTYPE_IPV6) return (gen_cmp(OR_LINK, offsetof(struct pfloghdr, af), BPF_B, (bpf_int32)AF_INET6)); -#endif /* INET6 */ else return gen_false(); /*NOTREACHED*/ @@ -3219,11 +3229,9 @@ gen_linktype(proto) default: return gen_false(); -#ifdef INET6 case ETHERTYPE_IPV6: return (gen_cmp(OR_LINK, off_linktype, BPF_B, (bpf_int32)ARCTYPE_INET6)); -#endif /* INET6 */ case ETHERTYPE_IP: b0 = gen_cmp(OR_LINK, off_linktype, BPF_B, @@ -3275,13 +3283,11 @@ gen_linktype(proto) */ return gen_cmp(OR_LINK, 2, BPF_H, (0x03<<8) | 0xcc); -#ifdef INET6 case ETHERTYPE_IPV6: /* * Check for the special NLPID for IPv6. */ return gen_cmp(OR_LINK, 2, BPF_H, (0x03<<8) | 0x8e); -#endif case LLCSAP_ISONS: /* @@ -3628,7 +3634,7 @@ gen_hostop6(addr, mask, dir, proto, src_off, dst_off) gen_and(b0, b1); return b1; } -#endif /*INET6*/ +#endif static struct block * gen_ehostop(eaddr, dir) @@ -4506,13 +4512,11 @@ gen_host(addr, mask, proto, dir, type) case Q_MOPRC: bpf_error("MOPRC host filtering not implemented"); -#ifdef INET6 case Q_IPV6: bpf_error("'ip6' modifier applied to ip host"); case Q_ICMPV6: bpf_error("'icmp6' modifier applied to %s", typestr); -#endif /* INET6 */ case Q_AH: bpf_error("'ah' modifier applied to %s", typestr); @@ -4669,7 +4673,7 @@ gen_host6(addr, mask, proto, dir, type) } /* NOTREACHED */ } -#endif /*INET6*/ +#endif #ifndef INET6 static struct block * @@ -4761,26 +4765,20 @@ gen_proto_abbrev(proto) case Q_SCTP: b1 = gen_proto(IPPROTO_SCTP, Q_IP, Q_DEFAULT); -#ifdef INET6 b0 = gen_proto(IPPROTO_SCTP, Q_IPV6, Q_DEFAULT); gen_or(b0, b1); -#endif break; case Q_TCP: b1 = gen_proto(IPPROTO_TCP, Q_IP, Q_DEFAULT); -#ifdef INET6 b0 = gen_proto(IPPROTO_TCP, Q_IPV6, Q_DEFAULT); gen_or(b0, b1); -#endif break; case Q_UDP: b1 = gen_proto(IPPROTO_UDP, Q_IP, Q_DEFAULT); -#ifdef INET6 b0 = gen_proto(IPPROTO_UDP, Q_IPV6, Q_DEFAULT); gen_or(b0, b1); -#endif break; case Q_ICMP: @@ -4808,10 +4806,8 @@ gen_proto_abbrev(proto) case Q_PIM: b1 = gen_proto(IPPROTO_PIM, Q_IP, Q_DEFAULT); -#ifdef INET6 b0 = gen_proto(IPPROTO_PIM, Q_IPV6, Q_DEFAULT); gen_or(b0, b1); -#endif break; #ifndef IPPROTO_VRRP @@ -4873,7 +4869,6 @@ gen_proto_abbrev(proto) b1 = gen_linktype(ETHERTYPE_MOPRC); break; -#ifdef INET6 case Q_IPV6: b1 = gen_linktype(ETHERTYPE_IPV6); break; @@ -4884,17 +4879,14 @@ gen_proto_abbrev(proto) case Q_ICMPV6: b1 = gen_proto(IPPROTO_ICMPV6, Q_IPV6, Q_DEFAULT); break; -#endif /* INET6 */ #ifndef IPPROTO_AH #define IPPROTO_AH 51 #endif case Q_AH: b1 = gen_proto(IPPROTO_AH, Q_IP, Q_DEFAULT); -#ifdef INET6 b0 = gen_proto(IPPROTO_AH, Q_IPV6, Q_DEFAULT); gen_or(b0, b1); -#endif break; #ifndef IPPROTO_ESP @@ -4902,10 +4894,8 @@ gen_proto_abbrev(proto) #endif case Q_ESP: b1 = gen_proto(IPPROTO_ESP, Q_IP, Q_DEFAULT); -#ifdef INET6 b0 = gen_proto(IPPROTO_ESP, Q_IPV6, Q_DEFAULT); gen_or(b0, b1); -#endif break; case Q_ISO: @@ -5038,7 +5028,6 @@ gen_portatom(off, v) return gen_cmp(OR_TRAN_IPV4, off, BPF_H, v); } -#ifdef INET6 static struct block * gen_portatom6(off, v) int off; @@ -5046,7 +5035,6 @@ gen_portatom6(off, v) { return gen_cmp(OR_TRAN_IPV6, off, BPF_H, v); } -#endif/*INET6*/ struct block * gen_portop(port, proto, dir) @@ -5138,7 +5126,6 @@ gen_port(port, ip_proto, dir) return b1; } -#ifdef INET6 struct block * gen_portop6(port, proto, dir) int port, proto, dir; @@ -5211,7 +5198,6 @@ gen_port6(port, ip_proto, dir) gen_and(b0, b1); return b1; } -#endif /* INET6 */ /* gen_portrange code */ static struct block * @@ -5316,7 +5302,6 @@ gen_portrange(port1, port2, ip_proto, dir) return b1; } -#ifdef INET6 static struct block * gen_portrangeatom6(off, v1, v2) int off; @@ -5417,7 +5402,6 @@ gen_portrange6(port1, port2, ip_proto, dir) gen_and(b0, b1); return b1; } -#endif /* INET6 */ static int lookup_proto(name, proto) @@ -5552,7 +5536,7 @@ gen_protochain(v, proto, dir) s[i]->s.k = off_macpl + off_nl; i++; break; -#ifdef INET6 + case Q_IPV6: b0 = gen_linktype(ETHERTYPE_IPV6); @@ -5565,7 +5549,7 @@ gen_protochain(v, proto, dir) s[i]->s.k = 40; i++; break; -#endif + default: bpf_error("unsupported proto to gen_protochain"); /*NOTREACHED*/ @@ -5592,7 +5576,6 @@ gen_protochain(v, proto, dir) fix2 = i; i++; -#ifdef INET6 if (proto == Q_IPV6) { int v6start, v6end, v6advance, j; @@ -5674,9 +5657,7 @@ gen_protochain(v, proto, dir) /* fixup */ for (j = v6start; j <= v6end; j++) s[j]->s.jt = s[v6advance]; - } else -#endif - { + } else { /* nop */ s[i] = new_stmt(BPF_ALU|BPF_ADD|BPF_K); s[i]->s.k = 0; @@ -5820,25 +5801,20 @@ gen_proto(v, proto, dir) int dir; { struct block *b0, *b1; -#ifdef INET6 #ifndef CHASE_CHAIN struct block *b2; #endif -#endif if (dir != Q_DEFAULT) bpf_error("direction applied to 'proto'"); switch (proto) { case Q_DEFAULT: -#ifdef INET6 b0 = gen_proto(v, Q_IP, dir); b1 = gen_proto(v, Q_IPV6, dir); gen_or(b0, b1); return b1; -#else - /*FALLTHROUGH*/ -#endif + case Q_IP: /* * For FDDI, RFC 1188 says that SNAP encapsulation is used, @@ -5989,7 +5965,6 @@ gen_proto(v, proto, dir) bpf_error("'carp proto' is bogus"); /* NOTREACHED */ -#ifdef INET6 case Q_IPV6: b0 = gen_linktype(ETHERTYPE_IPV6); #ifndef CHASE_CHAIN @@ -6010,7 +5985,6 @@ gen_proto(v, proto, dir) case Q_ICMPV6: bpf_error("'icmp6 proto' is bogus"); -#endif /* INET6 */ case Q_AH: bpf_error("'ah proto' is bogus"); @@ -6267,13 +6241,9 @@ gen_scode(name, q) bpf_error("illegal port number %d < 0", port); if (port > 65535) bpf_error("illegal port number %d > 65535", port); -#ifndef INET6 - return gen_port(port, real_proto, dir); -#else b = gen_port(port, real_proto, dir); gen_or(gen_port6(port, real_proto, dir), b); return b; -#endif /* INET6 */ case Q_PORTRANGE: if (proto != Q_DEFAULT && @@ -6317,13 +6287,9 @@ gen_scode(name, q) if (port2 > 65535) bpf_error("illegal port number %d > 65535", port2); -#ifndef INET6 - return gen_portrange(port1, port2, real_proto, dir); -#else b = gen_portrange(port1, port2, real_proto, dir); gen_or(gen_portrange6(port1, port2, real_proto, dir), b); return b; -#endif /* INET6 */ case Q_GATEWAY: #ifndef INET6 @@ -6471,16 +6437,12 @@ gen_ncode(s, v, q) if (v > 65535) bpf_error("illegal port number %u > 65535", v); -#ifndef INET6 - return gen_port((int)v, proto, dir); -#else { struct block *b; b = gen_port((int)v, proto, dir); gen_or(gen_port6((int)v, proto, dir), b); return b; } -#endif /* INET6 */ case Q_PORTRANGE: if (proto == Q_UDP) @@ -6497,16 +6459,12 @@ gen_ncode(s, v, q) if (v > 65535) bpf_error("illegal port number %u > 65535", v); -#ifndef INET6 - return gen_portrange((int)v, (int)v, proto, dir); -#else { struct block *b; b = gen_portrange((int)v, (int)v, proto, dir); gen_or(gen_portrange6((int)v, (int)v, proto, dir), b); return b; } -#endif /* INET6 */ case Q_GATEWAY: bpf_error("'gateway' requires a name"); @@ -6796,9 +6754,7 @@ gen_load(proto, inst, size) case Q_LAT: case Q_MOPRC: case Q_MOPDL: -#ifdef INET6 case Q_IPV6: -#endif /* * The offset is relative to the beginning of * the network-layer header. @@ -6907,16 +6863,12 @@ gen_load(proto, inst, size) gen_and(gen_proto_abbrev(proto), b = gen_ipfrag()); if (inst->b) gen_and(inst->b, b); -#ifdef INET6 gen_and(gen_proto_abbrev(Q_IP), b); -#endif inst->b = b; break; -#ifdef INET6 case Q_ICMPV6: bpf_error("IPv6 upper-layer protocol is not supported by proto[x]"); /*NOTREACHED*/ -#endif } inst->regno = regno; s = new_stmt(BPF_ST); @@ -7468,13 +7420,11 @@ gen_multicast(proto) gen_and(b0, b1); return b1; -#ifdef INET6 case Q_IPV6: b0 = gen_linktype(ETHERTYPE_IPV6); b1 = gen_cmp(OR_NET, 24, BPF_B, (bpf_int32)255); gen_and(b0, b1); return b1; -#endif /* INET6 */ } bpf_error("link-layer multicast filters supported only on ethernet/FDDI/token ring/ARCNET/802.11/ATM LANE/Fibre Channel"); /* NOTREACHED */ |