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b11ddf8 Initial revision
mcr authored
1 /*
2 * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 *
740fb43 @yuguy Support OpenBSD's "addr1", "addr2", "addr3", and "addr4" link-layer
yuguy authored
21 * @(#) $Header: /tcpdump/master/libpcap/gencode.h,v 1.71 2007-11-18 02:03:52 guy Exp $ (LBL)
243b20e @yuguy Add SunATM support, based on code from Yen Yen Lim at North Dakota State
yuguy authored
22 */
23
24 /*
25 * ATM support:
26 *
27 * Copyright (c) 1997 Yen Yen Lim and North Dakota State University
28 * All rights reserved.
29 *
30 * Redistribution and use in source and binary forms, with or without
31 * modification, are permitted provided that the following conditions
32 * are met:
33 * 1. Redistributions of source code must retain the above copyright
34 * notice, this list of conditions and the following disclaimer.
35 * 2. Redistributions in binary form must reproduce the above copyright
36 * notice, this list of conditions and the following disclaimer in the
37 * documentation and/or other materials provided with the distribution.
38 * 3. All advertising materials mentioning features or use of this software
39 * must display the following acknowledgement:
40 * This product includes software developed by Yen Yen Lim and
41 * North Dakota State University
42 * 4. The name of the author may not be used to endorse or promote products
43 * derived from this software without specific prior written permission.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
47 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
48 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
49 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
50 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
51 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
53 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
54 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
55 * POSSIBILITY OF SUCH DAMAGE.
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56 */
57
022b629 @yuguy From Albert Chin: just define __attribute__ as an empty macro if we
yuguy authored
58 #ifndef HAVE___ATTRIBUTE__
59 #define __attribute__(x)
60 #endif /* HAVE___ATTRIBUTE__ */
61
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62 /* Address qualifiers. */
63
64 #define Q_HOST 1
65 #define Q_NET 2
66 #define Q_PORT 3
67 #define Q_GATEWAY 4
68 #define Q_PROTO 5
7fe3c11 IPv6 packet filtering code.
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69 #define Q_PROTOCHAIN 6
97a8e51 @yuguy From Patrick Marie <mycroft@virgaria.org>: add support for port ranges
yuguy authored
70 #define Q_PORTRANGE 7
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71
72 /* Protocol qualifiers. */
73
74 #define Q_LINK 1
75 #define Q_IP 2
76 #define Q_ARP 3
77 #define Q_RARP 4
283da6d SCTP support from Armando L. Caro Jr. <acaro@mail.eecis.udel.edu>
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78 #define Q_SCTP 5
79 #define Q_TCP 6
80 #define Q_UDP 7
81 #define Q_ICMP 8
82 #define Q_IGMP 9
83 #define Q_IGRP 10
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84
85
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86 #define Q_ATALK 11
87 #define Q_DECNET 12
88 #define Q_LAT 13
89 #define Q_SCA 14
90 #define Q_MOPRC 15
91 #define Q_MOPDL 16
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92
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93
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94 #define Q_IPV6 17
95 #define Q_ICMPV6 18
96 #define Q_AH 19
97 #define Q_ESP 20
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98
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99 #define Q_PIM 21
100 #define Q_VRRP 22
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101
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102 #define Q_AARP 23
54b2ab1 @yuguy Patch from Monroe Williams <monroe@pobox.com>, submitted with NetBSD PR
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103
283da6d SCTP support from Armando L. Caro Jr. <acaro@mail.eecis.udel.edu>
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104 #define Q_ISO 24
105 #define Q_ESIS 25
106 #define Q_ISIS 26
107 #define Q_CLNP 27
af30d75 @yuguy Tony Li's changes, from FreeBSD, to support filtering for OSI packets
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108
283da6d SCTP support from Armando L. Caro Jr. <acaro@mail.eecis.udel.edu>
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109 #define Q_STP 28
2b3dac2 @yuguy Support checking for protocols specified by an LLC SAP on FDDI, Token
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110
283da6d SCTP support from Armando L. Caro Jr. <acaro@mail.eecis.udel.edu>
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111 #define Q_IPX 29
d17596d @yuguy Add "ipx", which checks for the LLC SAP for IPX as well as, on Ethernet,
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112
283da6d SCTP support from Armando L. Caro Jr. <acaro@mail.eecis.udel.edu>
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113 #define Q_NETBEUI 30
b0dcde2 @yuguy Add a "netbeui" keyword, which selects NetBEUI packets (LLC packets with
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114
bd48816 add BPF_ filters for misc. IS-IS PDU Types
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115 /* IS-IS Levels */
116 #define Q_ISIS_L1 31
117 #define Q_ISIS_L2 32
118 /* PDU types */
119 #define Q_ISIS_IIH 33
120 #define Q_ISIS_LAN_IIH 34
121 #define Q_ISIS_PTP_IIH 35
122 #define Q_ISIS_SNP 36
123 #define Q_ISIS_CSNP 37
124 #define Q_ISIS_PSNP 38
125 #define Q_ISIS_LSP 39
126
875df1a @yuguy Make "link[N:M]" refer to the 802.11 header for all 802.11 DLT_ values,
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127 #define Q_RADIO 40
128
7af986f @gvnn3 Add support for CARP.
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129 #define Q_CARP 41
130
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131 /* Directional qualifiers. */
132
133 #define Q_SRC 1
134 #define Q_DST 2
135 #define Q_OR 3
136 #define Q_AND 4
740fb43 @yuguy Support OpenBSD's "addr1", "addr2", "addr3", and "addr4" link-layer
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137 #define Q_ADDR1 5
138 #define Q_ADDR2 6
139 #define Q_ADDR3 7
140 #define Q_ADDR4 8
cc7b2f2 @guyharris Add support for "wlan ra" and "wlan ta".
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141 #define Q_RA 9
142 #define Q_TA 10
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143
144 #define Q_DEFAULT 0
145 #define Q_UNDEF 255
146
243b20e @yuguy Add SunATM support, based on code from Yen Yen Lim at North Dakota State
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147 /* ATM types */
148 #define A_METAC 22 /* Meta signalling Circuit */
149 #define A_BCC 23 /* Broadcast Circuit */
150 #define A_OAMF4SC 24 /* Segment OAM F4 Circuit */
151 #define A_OAMF4EC 25 /* End-to-End OAM F4 Circuit */
152 #define A_SC 26 /* Signalling Circuit*/
153 #define A_ILMIC 27 /* ILMI Circuit */
154 #define A_OAM 28 /* OAM cells : F4 only */
155 #define A_OAMF4 29 /* OAM F4 cells: Segment + End-to-end */
156 #define A_LANE 30 /* LANE traffic */
157 #define A_LLC 31 /* LLC-encapsulated traffic */
158
159 /* Based on Q.2931 signalling protocol */
160 #define A_SETUP 41 /* Setup message */
161 #define A_CALLPROCEED 42 /* Call proceeding message */
162 #define A_CONNECT 43 /* Connect message */
163 #define A_CONNECTACK 44 /* Connect Ack message */
164 #define A_RELEASE 45 /* Release message */
165 #define A_RELEASE_DONE 46 /* Release message */
166
167 /* ATM field types */
168 #define A_VPI 51
169 #define A_VCI 52
170 #define A_PROTOTYPE 53
171 #define A_MSGTYPE 54
172 #define A_CALLREFTYPE 55
173
174 #define A_CONNECTMSG 70 /* returns Q.2931 signalling messages for
175 establishing and destroying switched
176 virtual connection */
177 #define A_METACONNECT 71 /* returns Q.2931 signalling messages for
178 establishing and destroying predefined
179 virtual circuits, such as broadcast
180 circuit, oamf4 segment circuit, oamf4
181 end-to-end circuits, ILMI circuits or
182 connection signalling circuit. */
183
7589e0a @yuguy From Florent Drouin: add support for filtering on MTP2 frame types.
yuguy authored
184 /* MTP2 types */
185 #define M_FISU 22 /* FISU */
d02424c @yuguy From Florent Drouin: a Link Status Signal Unit is called an LSSU, not an
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186 #define M_LSSU 23 /* LSSU */
7589e0a @yuguy From Florent Drouin: add support for filtering on MTP2 frame types.
yuguy authored
187 #define M_MSU 24 /* MSU */
188
c36c37e Support filtering filtering E1 SS7 traffic on MTP2 layer Annex A.
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189 /* MTP2 HSL types */
190 #define MH_FISU 25 /* FISU for HSL */
191 #define MH_LSSU 26 /* LSSU */
192 #define MH_MSU 27 /* MSU */
193
7589e0a @yuguy From Florent Drouin: add support for filtering on MTP2 frame types.
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194 /* MTP3 field types */
195 #define M_SIO 1
196 #define M_OPC 2
197 #define M_DPC 3
198 #define M_SLS 4
a0a4852 @yuguy From Gilbert Hoyek <gil_hoyek@hotmail.com>: support for capturing SS7
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199
c36c37e Support filtering filtering E1 SS7 traffic on MTP2 layer Annex A.
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200 /* MTP3 field types in case of MTP2 HSL */
201 #define MH_SIO 5
202 #define MH_OPC 6
203 #define MH_DPC 7
204 #define MH_SLS 8
205
a0a4852 @yuguy From Gilbert Hoyek <gil_hoyek@hotmail.com>: support for capturing SS7
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206
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207 struct slist;
208
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209 struct stmt {
210 int code;
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211 struct slist *jt; /*only for relative jump in block*/
212 struct slist *jf; /*only for relative jump in block*/
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213 bpf_int32 k;
214 };
215
216 struct slist {
217 struct stmt s;
218 struct slist *next;
219 };
220
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221 /*
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222 * A bit vector to represent definition sets. We assume TOT_REGISTERS
223 * is smaller than 8*sizeof(atomset).
224 */
225 typedef bpf_u_int32 atomset;
226 #define ATOMMASK(n) (1 << (n))
227 #define ATOMELEM(d, n) (d & ATOMMASK(n))
228
229 /*
230 * An unbounded set.
231 */
232 typedef bpf_u_int32 *uset;
233
234 /*
235 * Total number of atomic entities, including accumulator (A) and index (X).
236 * We treat all these guys similarly during flow analysis.
237 */
238 #define N_ATOMS (BPF_MEMWORDS+2)
239
240 struct edge {
241 int id;
242 int code;
243 uset edom;
244 struct block *succ;
245 struct block *pred;
246 struct edge *next; /* link list of incoming edges for a node */
247 };
248
249 struct block {
250 int id;
251 struct slist *stmts; /* side effect stmts */
252 struct stmt s; /* branch stmt */
253 int mark;
b274713 @guyharris Make some counts unsigned ("counts" as in "they're always >= 0").
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254 u_int longjt; /* jt branch requires long jump */
255 u_int longjf; /* jf branch requires long jump */
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256 int level;
257 int offset;
258 int sense;
259 struct edge et;
260 struct edge ef;
261 struct block *head;
262 struct block *link; /* link field used by optimizer */
263 uset dom;
264 uset closure;
265 struct edge *in_edges;
266 atomset def, kill;
267 atomset in_use;
268 atomset out_use;
269 int oval;
270 int val[N_ATOMS];
271 };
272
273 struct arth {
274 struct block *b; /* protocol checks */
275 struct slist *s; /* stmt list */
276 int regno; /* virtual register number of result */
277 };
278
279 struct qual {
280 unsigned char addr;
281 unsigned char proto;
282 unsigned char dir;
283 unsigned char pad;
284 };
285
286 struct arth *gen_loadi(int);
287 struct arth *gen_load(int, struct arth *, int);
288 struct arth *gen_loadlen(void);
289 struct arth *gen_neg(struct arth *);
290 struct arth *gen_arth(int, struct arth *, struct arth *);
291
292 void gen_and(struct block *, struct block *);
293 void gen_or(struct block *, struct block *);
294 void gen_not(struct block *);
295
296 struct block *gen_scode(const char *, struct qual);
297 struct block *gen_ecode(const u_char *, struct qual);
38b97b7 @yuguy ARCNet support, from NetBSD.
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298 struct block *gen_acode(const u_char *, struct qual);
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299 struct block *gen_mcode(const char *, const char *, int, struct qual);
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300 #ifdef INET6
301 struct block *gen_mcode6(const char *, const char *, int, struct qual);
302 #endif
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303 struct block *gen_ncode(const char *, bpf_u_int32, struct qual);
304 struct block *gen_proto_abbrev(int);
305 struct block *gen_relation(int, struct arth *, struct arth *, int);
306 struct block *gen_less(int);
307 struct block *gen_greater(int);
308 struct block *gen_byteop(int, int, int);
309 struct block *gen_broadcast(int);
310 struct block *gen_multicast(int);
311 struct block *gen_inbound(int);
312
98a503e @yuguy Improved VLAN support, from Peter Jeremy - "vlan" filtering keyword,
yuguy authored
313 struct block *gen_vlan(int);
405ab1a add baseline support for MPLS protocol and per-label filtering
hannes authored
314 struct block *gen_mpls(int);
98a503e @yuguy Improved VLAN support, from Peter Jeremy - "vlan" filtering keyword,
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315
7fb15ab @yuguy Add "pppoed" and "pppoes" keywords, for PPPoE Discovery and Session
yuguy authored
316 struct block *gen_pppoed(void);
317 struct block *gen_pppoes(void);
318
6804103 @yuguy Make the value argument to "gen_ncmp()" a bpf_int32, the same as the
yuguy authored
319 struct block *gen_atmfield_code(int atmfield, bpf_int32 jvalue, bpf_u_int32 jtype, int reverse);
243b20e @yuguy Add SunATM support, based on code from Yen Yen Lim at North Dakota State
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320 struct block *gen_atmtype_abbrev(int type);
321 struct block *gen_atmmulti_abbrev(int type);
322
7589e0a @yuguy From Florent Drouin: add support for filtering on MTP2 frame types.
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323 struct block *gen_mtp2type_abbrev(int type);
a0a4852 @yuguy From Gilbert Hoyek <gil_hoyek@hotmail.com>: support for capturing SS7
yuguy authored
324 struct block *gen_mtp3field_code(int mtp3field, bpf_u_int32 jvalue, bpf_u_int32 jtype, int reverse);
325
2e69dd9 @yuguy The value pointed to by "gen_pf_ifname()"'s argument isn't modified, so
yuguy authored
326 struct block *gen_pf_ifname(const char *);
23d8b72 @yuguy Add support for OpenBSD DLT_PFLOG.
yuguy authored
327 struct block *gen_pf_rnr(int);
8177eec Handle the new OpenBSD pf format (DLT 117), which is now being used
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328 struct block *gen_pf_srnr(int);
329 struct block *gen_pf_ruleset(char *);
23d8b72 @yuguy Add support for OpenBSD DLT_PFLOG.
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330 struct block *gen_pf_reason(int);
331 struct block *gen_pf_action(int);
332 struct block *gen_pf_dir(int);
333
8856701 @yuguy From Sepherosa Ziehau: additional filter operations for 802.11 frame
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334 struct block *gen_p80211_type(int, int);
740fb43 @yuguy Support OpenBSD's "addr1", "addr2", "addr3", and "addr4" link-layer
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335 struct block *gen_p80211_fcdir(int);
8856701 @yuguy From Sepherosa Ziehau: additional filter operations for 802.11 frame
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336
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337 void bpf_optimize(struct block **);
0e2f8c8 add config.h, remove gnuc.h. remove __dead
assar authored
338 void bpf_error(const char *, ...)
022b629 @yuguy From Albert Chin: just define __attribute__ as an empty macro if we
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339 __attribute__((noreturn, format (printf, 1, 2)));
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340
341 void finish_parse(struct block *);
342 char *sdup(const char *);
343
b274713 @guyharris Make some counts unsigned ("counts" as in "they're always >= 0").
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344 struct bpf_insn *icode_to_fcode(struct block *, u_int *);
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345 int pcap_parse(void);
a6186fa @yuguy Pick up changes from NetBSD:
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346 void lex_init(const char *);
0d0297b @yuguy Older versions of Flex (e.g., 2.5.2, which at least one user had) dump
yuguy authored
347 void lex_cleanup(void);
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348 void sappend(struct slist *, struct slist *);
349
350 /* XXX */
351 #define JT(b) ((b)->et.succ)
352 #define JF(b) ((b)->ef.succ)
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353
354 extern int no_optimize;
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