The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 1 | %{ |
| 2 | /* |
| 3 | * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996 |
| 4 | * The Regents of the University of California. All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that: (1) source code distributions |
| 8 | * retain the above copyright notice and this paragraph in its entirety, (2) |
| 9 | * distributions including binary code include the above copyright notice and |
| 10 | * this paragraph in its entirety in the documentation or other materials |
| 11 | * provided with the distribution, and (3) all advertising materials mentioning |
| 12 | * features or use of this software display the following acknowledgement: |
| 13 | * ``This product includes software developed by the University of California, |
| 14 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| 15 | * the University nor the names of its contributors may be used to endorse |
| 16 | * or promote products derived from this software without specific prior |
| 17 | * written permission. |
| 18 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| 19 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| 20 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 21 | * |
| 22 | */ |
| 23 | #ifndef lint |
| 24 | static const char rcsid[] _U_ = |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 25 | "@(#) $Header: /tcpdump/master/libpcap/grammar.y,v 1.101 2007-11-18 02:03:52 guy Exp $ (LBL)"; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 26 | #endif |
| 27 | |
| 28 | #ifdef HAVE_CONFIG_H |
| 29 | #include "config.h" |
| 30 | #endif |
| 31 | |
| 32 | #ifdef WIN32 |
| 33 | #include <pcap-stdinc.h> |
| 34 | #else /* WIN32 */ |
| 35 | #include <sys/types.h> |
| 36 | #include <sys/socket.h> |
| 37 | #endif /* WIN32 */ |
| 38 | |
| 39 | #include <stdlib.h> |
| 40 | |
| 41 | #ifndef WIN32 |
| 42 | #if __STDC__ |
| 43 | struct mbuf; |
| 44 | struct rtentry; |
| 45 | #endif |
| 46 | |
| 47 | #include <netinet/in.h> |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 48 | #include <arpa/inet.h> |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 49 | #endif /* WIN32 */ |
| 50 | |
| 51 | #include <stdio.h> |
| 52 | |
| 53 | #include "pcap-int.h" |
| 54 | |
| 55 | #include "gencode.h" |
| 56 | #ifdef HAVE_NET_PFVAR_H |
| 57 | #include <net/if.h> |
| 58 | #include <net/pfvar.h> |
| 59 | #include <net/if_pflog.h> |
| 60 | #endif |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 61 | #include "ieee80211.h" |
| 62 | #include <pcap/namedb.h> |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 63 | |
| 64 | #ifdef HAVE_OS_PROTO_H |
| 65 | #include "os-proto.h" |
| 66 | #endif |
| 67 | |
| 68 | #define QSET(q, p, d, a) (q).proto = (p),\ |
| 69 | (q).dir = (d),\ |
| 70 | (q).addr = (a) |
| 71 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 72 | struct tok { |
| 73 | int v; /* value */ |
| 74 | const char *s; /* string */ |
| 75 | }; |
| 76 | |
| 77 | static const struct tok ieee80211_types[] = { |
| 78 | { IEEE80211_FC0_TYPE_DATA, "data" }, |
| 79 | { IEEE80211_FC0_TYPE_MGT, "mgt" }, |
| 80 | { IEEE80211_FC0_TYPE_MGT, "management" }, |
| 81 | { IEEE80211_FC0_TYPE_CTL, "ctl" }, |
| 82 | { IEEE80211_FC0_TYPE_CTL, "control" }, |
| 83 | { 0, NULL } |
| 84 | }; |
| 85 | static const struct tok ieee80211_mgt_subtypes[] = { |
| 86 | { IEEE80211_FC0_SUBTYPE_ASSOC_REQ, "assocreq" }, |
| 87 | { IEEE80211_FC0_SUBTYPE_ASSOC_REQ, "assoc-req" }, |
| 88 | { IEEE80211_FC0_SUBTYPE_ASSOC_RESP, "assocresp" }, |
| 89 | { IEEE80211_FC0_SUBTYPE_ASSOC_RESP, "assoc-resp" }, |
| 90 | { IEEE80211_FC0_SUBTYPE_REASSOC_REQ, "reassocreq" }, |
| 91 | { IEEE80211_FC0_SUBTYPE_REASSOC_REQ, "reassoc-req" }, |
| 92 | { IEEE80211_FC0_SUBTYPE_REASSOC_RESP, "reassocresp" }, |
| 93 | { IEEE80211_FC0_SUBTYPE_REASSOC_RESP, "reassoc-resp" }, |
| 94 | { IEEE80211_FC0_SUBTYPE_PROBE_REQ, "probereq" }, |
| 95 | { IEEE80211_FC0_SUBTYPE_PROBE_REQ, "probe-req" }, |
| 96 | { IEEE80211_FC0_SUBTYPE_PROBE_RESP, "proberesp" }, |
| 97 | { IEEE80211_FC0_SUBTYPE_PROBE_RESP, "probe-resp" }, |
| 98 | { IEEE80211_FC0_SUBTYPE_BEACON, "beacon" }, |
| 99 | { IEEE80211_FC0_SUBTYPE_ATIM, "atim" }, |
| 100 | { IEEE80211_FC0_SUBTYPE_DISASSOC, "disassoc" }, |
| 101 | { IEEE80211_FC0_SUBTYPE_DISASSOC, "disassociation" }, |
| 102 | { IEEE80211_FC0_SUBTYPE_AUTH, "auth" }, |
| 103 | { IEEE80211_FC0_SUBTYPE_AUTH, "authentication" }, |
| 104 | { IEEE80211_FC0_SUBTYPE_DEAUTH, "deauth" }, |
| 105 | { IEEE80211_FC0_SUBTYPE_DEAUTH, "deauthentication" }, |
| 106 | { 0, NULL } |
| 107 | }; |
| 108 | static const struct tok ieee80211_ctl_subtypes[] = { |
| 109 | { IEEE80211_FC0_SUBTYPE_PS_POLL, "ps-poll" }, |
| 110 | { IEEE80211_FC0_SUBTYPE_RTS, "rts" }, |
| 111 | { IEEE80211_FC0_SUBTYPE_CTS, "cts" }, |
| 112 | { IEEE80211_FC0_SUBTYPE_ACK, "ack" }, |
| 113 | { IEEE80211_FC0_SUBTYPE_CF_END, "cf-end" }, |
| 114 | { IEEE80211_FC0_SUBTYPE_CF_END_ACK, "cf-end-ack" }, |
| 115 | { 0, NULL } |
| 116 | }; |
| 117 | static const struct tok ieee80211_data_subtypes[] = { |
| 118 | { IEEE80211_FC0_SUBTYPE_DATA, "data" }, |
| 119 | { IEEE80211_FC0_SUBTYPE_CF_ACK, "data-cf-ack" }, |
| 120 | { IEEE80211_FC0_SUBTYPE_CF_POLL, "data-cf-poll" }, |
| 121 | { IEEE80211_FC0_SUBTYPE_CF_ACPL, "data-cf-ack-poll" }, |
| 122 | { IEEE80211_FC0_SUBTYPE_NODATA, "null" }, |
| 123 | { IEEE80211_FC0_SUBTYPE_NODATA_CF_ACK, "cf-ack" }, |
| 124 | { IEEE80211_FC0_SUBTYPE_NODATA_CF_POLL, "cf-poll" }, |
| 125 | { IEEE80211_FC0_SUBTYPE_NODATA_CF_ACPL, "cf-ack-poll" }, |
| 126 | { IEEE80211_FC0_SUBTYPE_QOS|IEEE80211_FC0_SUBTYPE_DATA, "qos-data" }, |
| 127 | { IEEE80211_FC0_SUBTYPE_QOS|IEEE80211_FC0_SUBTYPE_CF_ACK, "qos-data-cf-ack" }, |
| 128 | { IEEE80211_FC0_SUBTYPE_QOS|IEEE80211_FC0_SUBTYPE_CF_POLL, "qos-data-cf-poll" }, |
| 129 | { IEEE80211_FC0_SUBTYPE_QOS|IEEE80211_FC0_SUBTYPE_CF_ACPL, "qos-data-cf-ack-poll" }, |
| 130 | { IEEE80211_FC0_SUBTYPE_QOS|IEEE80211_FC0_SUBTYPE_NODATA, "qos" }, |
| 131 | { IEEE80211_FC0_SUBTYPE_QOS|IEEE80211_FC0_SUBTYPE_NODATA_CF_POLL, "qos-cf-poll" }, |
| 132 | { IEEE80211_FC0_SUBTYPE_QOS|IEEE80211_FC0_SUBTYPE_NODATA_CF_ACPL, "qos-cf-ack-poll" }, |
| 133 | { 0, NULL } |
| 134 | }; |
| 135 | struct type2tok { |
| 136 | int type; |
| 137 | const struct tok *tok; |
| 138 | }; |
| 139 | static const struct type2tok ieee80211_type_subtypes[] = { |
| 140 | { IEEE80211_FC0_TYPE_MGT, ieee80211_mgt_subtypes }, |
| 141 | { IEEE80211_FC0_TYPE_CTL, ieee80211_ctl_subtypes }, |
| 142 | { IEEE80211_FC0_TYPE_DATA, ieee80211_data_subtypes }, |
| 143 | { 0, NULL } |
| 144 | }; |
| 145 | |
| 146 | static int |
| 147 | str2tok(const char *str, const struct tok *toks) |
| 148 | { |
| 149 | int i; |
| 150 | |
| 151 | for (i = 0; toks[i].s != NULL; i++) { |
| 152 | if (pcap_strcasecmp(toks[i].s, str) == 0) |
| 153 | return (toks[i].v); |
| 154 | } |
| 155 | return (-1); |
| 156 | } |
| 157 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 158 | int n_errors = 0; |
| 159 | |
| 160 | static struct qual qerr = { Q_UNDEF, Q_UNDEF, Q_UNDEF, Q_UNDEF }; |
| 161 | |
| 162 | static void |
| 163 | yyerror(const char *msg) |
| 164 | { |
| 165 | ++n_errors; |
| 166 | bpf_error("%s", msg); |
| 167 | /* NOTREACHED */ |
| 168 | } |
| 169 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 170 | #ifdef NEED_YYPARSE_WRAPPER |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 171 | int yyparse(void); |
| 172 | |
| 173 | int |
| 174 | pcap_parse() |
| 175 | { |
| 176 | return (yyparse()); |
| 177 | } |
| 178 | #endif |
| 179 | |
| 180 | #ifdef HAVE_NET_PFVAR_H |
| 181 | static int |
| 182 | pfreason_to_num(const char *reason) |
| 183 | { |
| 184 | const char *reasons[] = PFRES_NAMES; |
| 185 | int i; |
| 186 | |
| 187 | for (i = 0; reasons[i]; i++) { |
| 188 | if (pcap_strcasecmp(reason, reasons[i]) == 0) |
| 189 | return (i); |
| 190 | } |
| 191 | bpf_error("unknown PF reason"); |
| 192 | /*NOTREACHED*/ |
| 193 | } |
| 194 | |
| 195 | static int |
| 196 | pfaction_to_num(const char *action) |
| 197 | { |
| 198 | if (pcap_strcasecmp(action, "pass") == 0 || |
| 199 | pcap_strcasecmp(action, "accept") == 0) |
| 200 | return (PF_PASS); |
| 201 | else if (pcap_strcasecmp(action, "drop") == 0 || |
| 202 | pcap_strcasecmp(action, "block") == 0) |
| 203 | return (PF_DROP); |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 204 | #if HAVE_PF_NAT_THROUGH_PF_NORDR |
| 205 | else if (pcap_strcasecmp(action, "rdr") == 0) |
| 206 | return (PF_RDR); |
| 207 | else if (pcap_strcasecmp(action, "nat") == 0) |
| 208 | return (PF_NAT); |
| 209 | else if (pcap_strcasecmp(action, "binat") == 0) |
| 210 | return (PF_BINAT); |
| 211 | else if (pcap_strcasecmp(action, "nordr") == 0) |
| 212 | return (PF_NORDR); |
| 213 | #endif |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 214 | else { |
| 215 | bpf_error("unknown PF action"); |
| 216 | /*NOTREACHED*/ |
| 217 | } |
| 218 | } |
| 219 | #else /* !HAVE_NET_PFVAR_H */ |
| 220 | static int |
| 221 | pfreason_to_num(const char *reason) |
| 222 | { |
| 223 | bpf_error("libpcap was compiled on a machine without pf support"); |
| 224 | /*NOTREACHED*/ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 225 | |
| 226 | /* this is to make the VC compiler happy */ |
| 227 | return -1; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 228 | } |
| 229 | |
| 230 | static int |
| 231 | pfaction_to_num(const char *action) |
| 232 | { |
| 233 | bpf_error("libpcap was compiled on a machine without pf support"); |
| 234 | /*NOTREACHED*/ |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 235 | |
| 236 | /* this is to make the VC compiler happy */ |
| 237 | return -1; |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 238 | } |
| 239 | #endif /* HAVE_NET_PFVAR_H */ |
| 240 | %} |
| 241 | |
| 242 | %union { |
| 243 | int i; |
| 244 | bpf_u_int32 h; |
| 245 | u_char *e; |
| 246 | char *s; |
| 247 | struct stmt *stmt; |
| 248 | struct arth *a; |
| 249 | struct { |
| 250 | struct qual q; |
| 251 | int atmfieldtype; |
| 252 | int mtp3fieldtype; |
| 253 | struct block *b; |
| 254 | } blk; |
| 255 | struct block *rblk; |
| 256 | } |
| 257 | |
| 258 | %type <blk> expr id nid pid term rterm qid |
| 259 | %type <blk> head |
| 260 | %type <i> pqual dqual aqual ndaqual |
| 261 | %type <a> arth narth |
| 262 | %type <i> byteop pname pnum relop irelop |
| 263 | %type <blk> and or paren not null prog |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 264 | %type <rblk> other pfvar p80211 |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 265 | %type <i> atmtype atmmultitype |
| 266 | %type <blk> atmfield |
| 267 | %type <blk> atmfieldvalue atmvalue atmlistvalue |
| 268 | %type <i> mtp2type |
| 269 | %type <blk> mtp3field |
| 270 | %type <blk> mtp3fieldvalue mtp3value mtp3listvalue |
| 271 | |
| 272 | |
| 273 | %token DST SRC HOST GATEWAY |
| 274 | %token NET NETMASK PORT PORTRANGE LESS GREATER PROTO PROTOCHAIN CBYTE |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 275 | %token ARP RARP IP SCTP TCP UDP ICMP IGMP IGRP PIM VRRP CARP |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 276 | %token ATALK AARP DECNET LAT SCA MOPRC MOPDL |
| 277 | %token TK_BROADCAST TK_MULTICAST |
| 278 | %token NUM INBOUND OUTBOUND |
| 279 | %token PF_IFNAME PF_RSET PF_RNR PF_SRNR PF_REASON PF_ACTION |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 280 | %token TYPE SUBTYPE DIR ADDR1 ADDR2 ADDR3 ADDR4 RA TA |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 281 | %token LINK |
| 282 | %token GEQ LEQ NEQ |
| 283 | %token ID EID HID HID6 AID |
| 284 | %token LSH RSH |
| 285 | %token LEN |
| 286 | %token IPV6 ICMPV6 AH ESP |
| 287 | %token VLAN MPLS |
| 288 | %token PPPOED PPPOES |
| 289 | %token ISO ESIS CLNP ISIS L1 L2 IIH LSP SNP CSNP PSNP |
| 290 | %token STP |
| 291 | %token IPX |
| 292 | %token NETBEUI |
| 293 | %token LANE LLC METAC BCC SC ILMIC OAMF4EC OAMF4SC |
| 294 | %token OAM OAMF4 CONNECTMSG METACONNECT |
| 295 | %token VPI VCI |
| 296 | %token RADIO |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 297 | %token FISU LSSU MSU HFISU HLSSU HMSU |
| 298 | %token SIO OPC DPC SLS HSIO HOPC HDPC HSLS |
| 299 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 300 | |
| 301 | %type <s> ID |
| 302 | %type <e> EID |
| 303 | %type <e> AID |
| 304 | %type <s> HID HID6 |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 305 | %type <i> NUM action reason type subtype type_subtype dir |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 306 | |
| 307 | %left OR AND |
| 308 | %nonassoc '!' |
| 309 | %left '|' |
| 310 | %left '&' |
| 311 | %left LSH RSH |
| 312 | %left '+' '-' |
| 313 | %left '*' '/' |
| 314 | %nonassoc UMINUS |
| 315 | %% |
| 316 | prog: null expr |
| 317 | { |
| 318 | finish_parse($2.b); |
| 319 | } |
| 320 | | null |
| 321 | ; |
| 322 | null: /* null */ { $$.q = qerr; } |
| 323 | ; |
| 324 | expr: term |
| 325 | | expr and term { gen_and($1.b, $3.b); $$ = $3; } |
| 326 | | expr and id { gen_and($1.b, $3.b); $$ = $3; } |
| 327 | | expr or term { gen_or($1.b, $3.b); $$ = $3; } |
| 328 | | expr or id { gen_or($1.b, $3.b); $$ = $3; } |
| 329 | ; |
| 330 | and: AND { $$ = $<blk>0; } |
| 331 | ; |
| 332 | or: OR { $$ = $<blk>0; } |
| 333 | ; |
| 334 | id: nid |
| 335 | | pnum { $$.b = gen_ncode(NULL, (bpf_u_int32)$1, |
| 336 | $$.q = $<blk>0.q); } |
| 337 | | paren pid ')' { $$ = $2; } |
| 338 | ; |
| 339 | nid: ID { $$.b = gen_scode($1, $$.q = $<blk>0.q); } |
| 340 | | HID '/' NUM { $$.b = gen_mcode($1, NULL, $3, |
| 341 | $$.q = $<blk>0.q); } |
| 342 | | HID NETMASK HID { $$.b = gen_mcode($1, $3, 0, |
| 343 | $$.q = $<blk>0.q); } |
| 344 | | HID { |
| 345 | /* Decide how to parse HID based on proto */ |
| 346 | $$.q = $<blk>0.q; |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 347 | if ($$.q.addr == Q_PORT) |
| 348 | bpf_error("'port' modifier applied to ip host"); |
| 349 | else if ($$.q.addr == Q_PORTRANGE) |
| 350 | bpf_error("'portrange' modifier applied to ip host"); |
| 351 | else if ($$.q.addr == Q_PROTO) |
| 352 | bpf_error("'proto' modifier applied to ip host"); |
| 353 | else if ($$.q.addr == Q_PROTOCHAIN) |
| 354 | bpf_error("'protochain' modifier applied to ip host"); |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 355 | $$.b = gen_ncode($1, 0, $$.q); |
| 356 | } |
| 357 | | HID6 '/' NUM { |
| 358 | #ifdef INET6 |
| 359 | $$.b = gen_mcode6($1, NULL, $3, |
| 360 | $$.q = $<blk>0.q); |
| 361 | #else |
| 362 | bpf_error("'ip6addr/prefixlen' not supported " |
| 363 | "in this configuration"); |
| 364 | #endif /*INET6*/ |
| 365 | } |
| 366 | | HID6 { |
| 367 | #ifdef INET6 |
| 368 | $$.b = gen_mcode6($1, 0, 128, |
| 369 | $$.q = $<blk>0.q); |
| 370 | #else |
| 371 | bpf_error("'ip6addr' not supported " |
| 372 | "in this configuration"); |
| 373 | #endif /*INET6*/ |
| 374 | } |
| 375 | | EID { |
| 376 | $$.b = gen_ecode($1, $$.q = $<blk>0.q); |
| 377 | /* |
| 378 | * $1 was allocated by "pcap_ether_aton()", |
| 379 | * so we must free it now that we're done |
| 380 | * with it. |
| 381 | */ |
| 382 | free($1); |
| 383 | } |
| 384 | | AID { |
| 385 | $$.b = gen_acode($1, $$.q = $<blk>0.q); |
| 386 | /* |
| 387 | * $1 was allocated by "pcap_ether_aton()", |
| 388 | * so we must free it now that we're done |
| 389 | * with it. |
| 390 | */ |
| 391 | free($1); |
| 392 | } |
| 393 | | not id { gen_not($2.b); $$ = $2; } |
| 394 | ; |
| 395 | not: '!' { $$ = $<blk>0; } |
| 396 | ; |
| 397 | paren: '(' { $$ = $<blk>0; } |
| 398 | ; |
| 399 | pid: nid |
| 400 | | qid and id { gen_and($1.b, $3.b); $$ = $3; } |
| 401 | | qid or id { gen_or($1.b, $3.b); $$ = $3; } |
| 402 | ; |
| 403 | qid: pnum { $$.b = gen_ncode(NULL, (bpf_u_int32)$1, |
| 404 | $$.q = $<blk>0.q); } |
| 405 | | pid |
| 406 | ; |
| 407 | term: rterm |
| 408 | | not term { gen_not($2.b); $$ = $2; } |
| 409 | ; |
| 410 | head: pqual dqual aqual { QSET($$.q, $1, $2, $3); } |
| 411 | | pqual dqual { QSET($$.q, $1, $2, Q_DEFAULT); } |
| 412 | | pqual aqual { QSET($$.q, $1, Q_DEFAULT, $2); } |
| 413 | | pqual PROTO { QSET($$.q, $1, Q_DEFAULT, Q_PROTO); } |
| 414 | | pqual PROTOCHAIN { QSET($$.q, $1, Q_DEFAULT, Q_PROTOCHAIN); } |
| 415 | | pqual ndaqual { QSET($$.q, $1, Q_DEFAULT, $2); } |
| 416 | ; |
| 417 | rterm: head id { $$ = $2; } |
| 418 | | paren expr ')' { $$.b = $2.b; $$.q = $1.q; } |
| 419 | | pname { $$.b = gen_proto_abbrev($1); $$.q = qerr; } |
| 420 | | arth relop arth { $$.b = gen_relation($2, $1, $3, 0); |
| 421 | $$.q = qerr; } |
| 422 | | arth irelop arth { $$.b = gen_relation($2, $1, $3, 1); |
| 423 | $$.q = qerr; } |
| 424 | | other { $$.b = $1; $$.q = qerr; } |
| 425 | | atmtype { $$.b = gen_atmtype_abbrev($1); $$.q = qerr; } |
| 426 | | atmmultitype { $$.b = gen_atmmulti_abbrev($1); $$.q = qerr; } |
| 427 | | atmfield atmvalue { $$.b = $2.b; $$.q = qerr; } |
| 428 | | mtp2type { $$.b = gen_mtp2type_abbrev($1); $$.q = qerr; } |
| 429 | | mtp3field mtp3value { $$.b = $2.b; $$.q = qerr; } |
| 430 | ; |
| 431 | /* protocol level qualifiers */ |
| 432 | pqual: pname |
| 433 | | { $$ = Q_DEFAULT; } |
| 434 | ; |
| 435 | /* 'direction' qualifiers */ |
| 436 | dqual: SRC { $$ = Q_SRC; } |
| 437 | | DST { $$ = Q_DST; } |
| 438 | | SRC OR DST { $$ = Q_OR; } |
| 439 | | DST OR SRC { $$ = Q_OR; } |
| 440 | | SRC AND DST { $$ = Q_AND; } |
| 441 | | DST AND SRC { $$ = Q_AND; } |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 442 | | ADDR1 { $$ = Q_ADDR1; } |
| 443 | | ADDR2 { $$ = Q_ADDR2; } |
| 444 | | ADDR3 { $$ = Q_ADDR3; } |
| 445 | | ADDR4 { $$ = Q_ADDR4; } |
| 446 | | RA { $$ = Q_RA; } |
| 447 | | TA { $$ = Q_TA; } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 448 | ; |
| 449 | /* address type qualifiers */ |
| 450 | aqual: HOST { $$ = Q_HOST; } |
| 451 | | NET { $$ = Q_NET; } |
| 452 | | PORT { $$ = Q_PORT; } |
| 453 | | PORTRANGE { $$ = Q_PORTRANGE; } |
| 454 | ; |
| 455 | /* non-directional address type qualifiers */ |
| 456 | ndaqual: GATEWAY { $$ = Q_GATEWAY; } |
| 457 | ; |
| 458 | pname: LINK { $$ = Q_LINK; } |
| 459 | | IP { $$ = Q_IP; } |
| 460 | | ARP { $$ = Q_ARP; } |
| 461 | | RARP { $$ = Q_RARP; } |
| 462 | | SCTP { $$ = Q_SCTP; } |
| 463 | | TCP { $$ = Q_TCP; } |
| 464 | | UDP { $$ = Q_UDP; } |
| 465 | | ICMP { $$ = Q_ICMP; } |
| 466 | | IGMP { $$ = Q_IGMP; } |
| 467 | | IGRP { $$ = Q_IGRP; } |
| 468 | | PIM { $$ = Q_PIM; } |
| 469 | | VRRP { $$ = Q_VRRP; } |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 470 | | CARP { $$ = Q_CARP; } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 471 | | ATALK { $$ = Q_ATALK; } |
| 472 | | AARP { $$ = Q_AARP; } |
| 473 | | DECNET { $$ = Q_DECNET; } |
| 474 | | LAT { $$ = Q_LAT; } |
| 475 | | SCA { $$ = Q_SCA; } |
| 476 | | MOPDL { $$ = Q_MOPDL; } |
| 477 | | MOPRC { $$ = Q_MOPRC; } |
| 478 | | IPV6 { $$ = Q_IPV6; } |
| 479 | | ICMPV6 { $$ = Q_ICMPV6; } |
| 480 | | AH { $$ = Q_AH; } |
| 481 | | ESP { $$ = Q_ESP; } |
| 482 | | ISO { $$ = Q_ISO; } |
| 483 | | ESIS { $$ = Q_ESIS; } |
| 484 | | ISIS { $$ = Q_ISIS; } |
| 485 | | L1 { $$ = Q_ISIS_L1; } |
| 486 | | L2 { $$ = Q_ISIS_L2; } |
| 487 | | IIH { $$ = Q_ISIS_IIH; } |
| 488 | | LSP { $$ = Q_ISIS_LSP; } |
| 489 | | SNP { $$ = Q_ISIS_SNP; } |
| 490 | | PSNP { $$ = Q_ISIS_PSNP; } |
| 491 | | CSNP { $$ = Q_ISIS_CSNP; } |
| 492 | | CLNP { $$ = Q_CLNP; } |
| 493 | | STP { $$ = Q_STP; } |
| 494 | | IPX { $$ = Q_IPX; } |
| 495 | | NETBEUI { $$ = Q_NETBEUI; } |
| 496 | | RADIO { $$ = Q_RADIO; } |
| 497 | ; |
| 498 | other: pqual TK_BROADCAST { $$ = gen_broadcast($1); } |
| 499 | | pqual TK_MULTICAST { $$ = gen_multicast($1); } |
| 500 | | LESS NUM { $$ = gen_less($2); } |
| 501 | | GREATER NUM { $$ = gen_greater($2); } |
| 502 | | CBYTE NUM byteop NUM { $$ = gen_byteop($3, $2, $4); } |
| 503 | | INBOUND { $$ = gen_inbound(0); } |
| 504 | | OUTBOUND { $$ = gen_inbound(1); } |
| 505 | | VLAN pnum { $$ = gen_vlan($2); } |
| 506 | | VLAN { $$ = gen_vlan(-1); } |
| 507 | | MPLS pnum { $$ = gen_mpls($2); } |
| 508 | | MPLS { $$ = gen_mpls(-1); } |
| 509 | | PPPOED { $$ = gen_pppoed(); } |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 510 | | PPPOES pnum { $$ = gen_pppoes($2); } |
| 511 | | PPPOES { $$ = gen_pppoes(-1); } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 512 | | pfvar { $$ = $1; } |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 513 | | pqual p80211 { $$ = $2; } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 514 | ; |
| 515 | |
| 516 | pfvar: PF_IFNAME ID { $$ = gen_pf_ifname($2); } |
| 517 | | PF_RSET ID { $$ = gen_pf_ruleset($2); } |
| 518 | | PF_RNR NUM { $$ = gen_pf_rnr($2); } |
| 519 | | PF_SRNR NUM { $$ = gen_pf_srnr($2); } |
| 520 | | PF_REASON reason { $$ = gen_pf_reason($2); } |
| 521 | | PF_ACTION action { $$ = gen_pf_action($2); } |
| 522 | ; |
| 523 | |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 524 | p80211: TYPE type SUBTYPE subtype |
| 525 | { $$ = gen_p80211_type($2 | $4, |
| 526 | IEEE80211_FC0_TYPE_MASK | |
| 527 | IEEE80211_FC0_SUBTYPE_MASK); |
| 528 | } |
| 529 | | TYPE type { $$ = gen_p80211_type($2, |
| 530 | IEEE80211_FC0_TYPE_MASK); |
| 531 | } |
| 532 | | SUBTYPE type_subtype { $$ = gen_p80211_type($2, |
| 533 | IEEE80211_FC0_TYPE_MASK | |
| 534 | IEEE80211_FC0_SUBTYPE_MASK); |
| 535 | } |
| 536 | | DIR dir { $$ = gen_p80211_fcdir($2); } |
| 537 | ; |
| 538 | |
| 539 | type: NUM |
| 540 | | ID { $$ = str2tok($1, ieee80211_types); |
| 541 | if ($$ == -1) |
| 542 | bpf_error("unknown 802.11 type name"); |
| 543 | } |
| 544 | ; |
| 545 | |
| 546 | subtype: NUM |
| 547 | | ID { const struct tok *types = NULL; |
| 548 | int i; |
| 549 | for (i = 0;; i++) { |
| 550 | if (ieee80211_type_subtypes[i].tok == NULL) { |
| 551 | /* Ran out of types */ |
| 552 | bpf_error("unknown 802.11 type"); |
| 553 | break; |
| 554 | } |
| 555 | if ($<i>-1 == ieee80211_type_subtypes[i].type) { |
| 556 | types = ieee80211_type_subtypes[i].tok; |
| 557 | break; |
| 558 | } |
| 559 | } |
| 560 | |
| 561 | $$ = str2tok($1, types); |
| 562 | if ($$ == -1) |
| 563 | bpf_error("unknown 802.11 subtype name"); |
| 564 | } |
| 565 | ; |
| 566 | |
| 567 | type_subtype: ID { int i; |
| 568 | for (i = 0;; i++) { |
| 569 | if (ieee80211_type_subtypes[i].tok == NULL) { |
| 570 | /* Ran out of types */ |
| 571 | bpf_error("unknown 802.11 type name"); |
| 572 | break; |
| 573 | } |
| 574 | $$ = str2tok($1, ieee80211_type_subtypes[i].tok); |
| 575 | if ($$ != -1) { |
| 576 | $$ |= ieee80211_type_subtypes[i].type; |
| 577 | break; |
| 578 | } |
| 579 | } |
| 580 | } |
| 581 | ; |
| 582 | |
| 583 | dir: NUM |
| 584 | | ID { if (pcap_strcasecmp($1, "nods") == 0) |
| 585 | $$ = IEEE80211_FC1_DIR_NODS; |
| 586 | else if (pcap_strcasecmp($1, "tods") == 0) |
| 587 | $$ = IEEE80211_FC1_DIR_TODS; |
| 588 | else if (pcap_strcasecmp($1, "fromds") == 0) |
| 589 | $$ = IEEE80211_FC1_DIR_FROMDS; |
| 590 | else if (pcap_strcasecmp($1, "dstods") == 0) |
| 591 | $$ = IEEE80211_FC1_DIR_DSTODS; |
| 592 | else |
| 593 | bpf_error("unknown 802.11 direction"); |
| 594 | } |
| 595 | ; |
| 596 | |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 597 | reason: NUM { $$ = $1; } |
| 598 | | ID { $$ = pfreason_to_num($1); } |
| 599 | ; |
| 600 | |
| 601 | action: ID { $$ = pfaction_to_num($1); } |
| 602 | ; |
| 603 | |
| 604 | relop: '>' { $$ = BPF_JGT; } |
| 605 | | GEQ { $$ = BPF_JGE; } |
| 606 | | '=' { $$ = BPF_JEQ; } |
| 607 | ; |
| 608 | irelop: LEQ { $$ = BPF_JGT; } |
| 609 | | '<' { $$ = BPF_JGE; } |
| 610 | | NEQ { $$ = BPF_JEQ; } |
| 611 | ; |
| 612 | arth: pnum { $$ = gen_loadi($1); } |
| 613 | | narth |
| 614 | ; |
| 615 | narth: pname '[' arth ']' { $$ = gen_load($1, $3, 1); } |
| 616 | | pname '[' arth ':' NUM ']' { $$ = gen_load($1, $3, $5); } |
| 617 | | arth '+' arth { $$ = gen_arth(BPF_ADD, $1, $3); } |
| 618 | | arth '-' arth { $$ = gen_arth(BPF_SUB, $1, $3); } |
| 619 | | arth '*' arth { $$ = gen_arth(BPF_MUL, $1, $3); } |
| 620 | | arth '/' arth { $$ = gen_arth(BPF_DIV, $1, $3); } |
| 621 | | arth '&' arth { $$ = gen_arth(BPF_AND, $1, $3); } |
| 622 | | arth '|' arth { $$ = gen_arth(BPF_OR, $1, $3); } |
| 623 | | arth LSH arth { $$ = gen_arth(BPF_LSH, $1, $3); } |
| 624 | | arth RSH arth { $$ = gen_arth(BPF_RSH, $1, $3); } |
| 625 | | '-' arth %prec UMINUS { $$ = gen_neg($2); } |
| 626 | | paren narth ')' { $$ = $2; } |
| 627 | | LEN { $$ = gen_loadlen(); } |
| 628 | ; |
| 629 | byteop: '&' { $$ = '&'; } |
| 630 | | '|' { $$ = '|'; } |
| 631 | | '<' { $$ = '<'; } |
| 632 | | '>' { $$ = '>'; } |
| 633 | | '=' { $$ = '='; } |
| 634 | ; |
| 635 | pnum: NUM |
| 636 | | paren pnum ')' { $$ = $2; } |
| 637 | ; |
| 638 | atmtype: LANE { $$ = A_LANE; } |
| 639 | | LLC { $$ = A_LLC; } |
| 640 | | METAC { $$ = A_METAC; } |
| 641 | | BCC { $$ = A_BCC; } |
| 642 | | OAMF4EC { $$ = A_OAMF4EC; } |
| 643 | | OAMF4SC { $$ = A_OAMF4SC; } |
| 644 | | SC { $$ = A_SC; } |
| 645 | | ILMIC { $$ = A_ILMIC; } |
| 646 | ; |
| 647 | atmmultitype: OAM { $$ = A_OAM; } |
| 648 | | OAMF4 { $$ = A_OAMF4; } |
| 649 | | CONNECTMSG { $$ = A_CONNECTMSG; } |
| 650 | | METACONNECT { $$ = A_METACONNECT; } |
| 651 | ; |
| 652 | /* ATM field types quantifier */ |
| 653 | atmfield: VPI { $$.atmfieldtype = A_VPI; } |
| 654 | | VCI { $$.atmfieldtype = A_VCI; } |
| 655 | ; |
| 656 | atmvalue: atmfieldvalue |
| 657 | | relop NUM { $$.b = gen_atmfield_code($<blk>0.atmfieldtype, (bpf_int32)$2, (bpf_u_int32)$1, 0); } |
| 658 | | irelop NUM { $$.b = gen_atmfield_code($<blk>0.atmfieldtype, (bpf_int32)$2, (bpf_u_int32)$1, 1); } |
| 659 | | paren atmlistvalue ')' { $$.b = $2.b; $$.q = qerr; } |
| 660 | ; |
| 661 | atmfieldvalue: NUM { |
| 662 | $$.atmfieldtype = $<blk>0.atmfieldtype; |
| 663 | if ($$.atmfieldtype == A_VPI || |
| 664 | $$.atmfieldtype == A_VCI) |
| 665 | $$.b = gen_atmfield_code($$.atmfieldtype, (bpf_int32) $1, BPF_JEQ, 0); |
| 666 | } |
| 667 | ; |
| 668 | atmlistvalue: atmfieldvalue |
| 669 | | atmlistvalue or atmfieldvalue { gen_or($1.b, $3.b); $$ = $3; } |
| 670 | ; |
| 671 | /* MTP2 types quantifier */ |
| 672 | mtp2type: FISU { $$ = M_FISU; } |
| 673 | | LSSU { $$ = M_LSSU; } |
| 674 | | MSU { $$ = M_MSU; } |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 675 | | HFISU { $$ = MH_FISU; } |
| 676 | | HLSSU { $$ = MH_LSSU; } |
| 677 | | HMSU { $$ = MH_MSU; } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 678 | ; |
| 679 | /* MTP3 field types quantifier */ |
| 680 | mtp3field: SIO { $$.mtp3fieldtype = M_SIO; } |
| 681 | | OPC { $$.mtp3fieldtype = M_OPC; } |
| 682 | | DPC { $$.mtp3fieldtype = M_DPC; } |
| 683 | | SLS { $$.mtp3fieldtype = M_SLS; } |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 684 | | HSIO { $$.mtp3fieldtype = MH_SIO; } |
| 685 | | HOPC { $$.mtp3fieldtype = MH_OPC; } |
| 686 | | HDPC { $$.mtp3fieldtype = MH_DPC; } |
| 687 | | HSLS { $$.mtp3fieldtype = MH_SLS; } |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 688 | ; |
| 689 | mtp3value: mtp3fieldvalue |
| 690 | | relop NUM { $$.b = gen_mtp3field_code($<blk>0.mtp3fieldtype, (u_int)$2, (u_int)$1, 0); } |
| 691 | | irelop NUM { $$.b = gen_mtp3field_code($<blk>0.mtp3fieldtype, (u_int)$2, (u_int)$1, 1); } |
| 692 | | paren mtp3listvalue ')' { $$.b = $2.b; $$.q = qerr; } |
| 693 | ; |
| 694 | mtp3fieldvalue: NUM { |
| 695 | $$.mtp3fieldtype = $<blk>0.mtp3fieldtype; |
| 696 | if ($$.mtp3fieldtype == M_SIO || |
| 697 | $$.mtp3fieldtype == M_OPC || |
| 698 | $$.mtp3fieldtype == M_DPC || |
JP Abgrall | 511eca3 | 2014-02-12 13:46:45 -0800 | [diff] [blame] | 699 | $$.mtp3fieldtype == M_SLS || |
| 700 | $$.mtp3fieldtype == MH_SIO || |
| 701 | $$.mtp3fieldtype == MH_OPC || |
| 702 | $$.mtp3fieldtype == MH_DPC || |
| 703 | $$.mtp3fieldtype == MH_SLS) |
The Android Open Source Project | 478ab6c | 2009-03-03 19:30:05 -0800 | [diff] [blame] | 704 | $$.b = gen_mtp3field_code($$.mtp3fieldtype, (u_int) $1, BPF_JEQ, 0); |
| 705 | } |
| 706 | ; |
| 707 | mtp3listvalue: mtp3fieldvalue |
| 708 | | mtp3listvalue or mtp3fieldvalue { gen_or($1.b, $3.b); $$ = $3; } |
| 709 | ; |
| 710 | %% |