1 /* $OpenBSD: pfctl_parser.c,v 1.240 2008/06/10 20:55:02 mcbride Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2001 Daniel Hartmeier 7 * Copyright (c) 2002,2003 Henning Brauer 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 14 * - Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * - Redistributions in binary form must reproduce the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer in the documentation and/or other materials provided 19 * with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 */ 35 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 #include <sys/types.h> 40 #include <sys/ioctl.h> 41 #include <sys/socket.h> 42 #include <sys/param.h> 43 #include <sys/proc.h> 44 #include <net/if.h> 45 #include <netinet/in.h> 46 #include <netinet/in_systm.h> 47 #include <netinet/ip.h> 48 #include <netinet/ip_icmp.h> 49 #include <netinet/icmp6.h> 50 #include <net/pfvar.h> 51 #include <arpa/inet.h> 52 53 #include <assert.h> 54 #include <search.h> 55 #include <stdio.h> 56 #include <stdlib.h> 57 #include <string.h> 58 #include <ctype.h> 59 #include <netdb.h> 60 #include <stdarg.h> 61 #include <errno.h> 62 #include <err.h> 63 #include <ifaddrs.h> 64 #include <unistd.h> 65 66 #include "pfctl_parser.h" 67 #include "pfctl.h" 68 69 void print_op (u_int8_t, const char *, const char *); 70 void print_port (u_int8_t, u_int16_t, u_int16_t, const char *, int); 71 void print_ugid (u_int8_t, unsigned, unsigned, const char *, unsigned); 72 void print_flags (u_int8_t); 73 void print_fromto(struct pf_rule_addr *, pf_osfp_t, 74 struct pf_rule_addr *, u_int8_t, u_int8_t, int, int); 75 int ifa_skip_if(const char *filter, struct node_host *p); 76 77 struct node_host *host_if(const char *, int); 78 struct node_host *host_v4(const char *, int); 79 struct node_host *host_v6(const char *, int); 80 struct node_host *host_dns(const char *, int, int); 81 82 const char * const tcpflags = "FSRPAUEW"; 83 84 static const struct icmptypeent icmp_type[] = { 85 { "echoreq", ICMP_ECHO }, 86 { "echorep", ICMP_ECHOREPLY }, 87 { "unreach", ICMP_UNREACH }, 88 { "squench", ICMP_SOURCEQUENCH }, 89 { "redir", ICMP_REDIRECT }, 90 { "althost", ICMP_ALTHOSTADDR }, 91 { "routeradv", ICMP_ROUTERADVERT }, 92 { "routersol", ICMP_ROUTERSOLICIT }, 93 { "timex", ICMP_TIMXCEED }, 94 { "paramprob", ICMP_PARAMPROB }, 95 { "timereq", ICMP_TSTAMP }, 96 { "timerep", ICMP_TSTAMPREPLY }, 97 { "inforeq", ICMP_IREQ }, 98 { "inforep", ICMP_IREQREPLY }, 99 { "maskreq", ICMP_MASKREQ }, 100 { "maskrep", ICMP_MASKREPLY }, 101 { "trace", ICMP_TRACEROUTE }, 102 { "dataconv", ICMP_DATACONVERR }, 103 { "mobredir", ICMP_MOBILE_REDIRECT }, 104 { "ipv6-where", ICMP_IPV6_WHEREAREYOU }, 105 { "ipv6-here", ICMP_IPV6_IAMHERE }, 106 { "mobregreq", ICMP_MOBILE_REGREQUEST }, 107 { "mobregrep", ICMP_MOBILE_REGREPLY }, 108 { "skip", ICMP_SKIP }, 109 { "photuris", ICMP_PHOTURIS } 110 }; 111 112 static const struct icmptypeent icmp6_type[] = { 113 { "unreach", ICMP6_DST_UNREACH }, 114 { "toobig", ICMP6_PACKET_TOO_BIG }, 115 { "timex", ICMP6_TIME_EXCEEDED }, 116 { "paramprob", ICMP6_PARAM_PROB }, 117 { "echoreq", ICMP6_ECHO_REQUEST }, 118 { "echorep", ICMP6_ECHO_REPLY }, 119 { "groupqry", ICMP6_MEMBERSHIP_QUERY }, 120 { "listqry", MLD_LISTENER_QUERY }, 121 { "grouprep", ICMP6_MEMBERSHIP_REPORT }, 122 { "listenrep", MLD_LISTENER_REPORT }, 123 { "groupterm", ICMP6_MEMBERSHIP_REDUCTION }, 124 { "listendone", MLD_LISTENER_DONE }, 125 { "routersol", ND_ROUTER_SOLICIT }, 126 { "routeradv", ND_ROUTER_ADVERT }, 127 { "neighbrsol", ND_NEIGHBOR_SOLICIT }, 128 { "neighbradv", ND_NEIGHBOR_ADVERT }, 129 { "redir", ND_REDIRECT }, 130 { "routrrenum", ICMP6_ROUTER_RENUMBERING }, 131 { "wrureq", ICMP6_WRUREQUEST }, 132 { "wrurep", ICMP6_WRUREPLY }, 133 { "fqdnreq", ICMP6_FQDN_QUERY }, 134 { "fqdnrep", ICMP6_FQDN_REPLY }, 135 { "niqry", ICMP6_NI_QUERY }, 136 { "nirep", ICMP6_NI_REPLY }, 137 { "mtraceresp", MLD_MTRACE_RESP }, 138 { "mtrace", MLD_MTRACE } 139 }; 140 141 static const struct icmpcodeent icmp_code[] = { 142 { "net-unr", ICMP_UNREACH, ICMP_UNREACH_NET }, 143 { "host-unr", ICMP_UNREACH, ICMP_UNREACH_HOST }, 144 { "proto-unr", ICMP_UNREACH, ICMP_UNREACH_PROTOCOL }, 145 { "port-unr", ICMP_UNREACH, ICMP_UNREACH_PORT }, 146 { "needfrag", ICMP_UNREACH, ICMP_UNREACH_NEEDFRAG }, 147 { "srcfail", ICMP_UNREACH, ICMP_UNREACH_SRCFAIL }, 148 { "net-unk", ICMP_UNREACH, ICMP_UNREACH_NET_UNKNOWN }, 149 { "host-unk", ICMP_UNREACH, ICMP_UNREACH_HOST_UNKNOWN }, 150 { "isolate", ICMP_UNREACH, ICMP_UNREACH_ISOLATED }, 151 { "net-prohib", ICMP_UNREACH, ICMP_UNREACH_NET_PROHIB }, 152 { "host-prohib", ICMP_UNREACH, ICMP_UNREACH_HOST_PROHIB }, 153 { "net-tos", ICMP_UNREACH, ICMP_UNREACH_TOSNET }, 154 { "host-tos", ICMP_UNREACH, ICMP_UNREACH_TOSHOST }, 155 { "filter-prohib", ICMP_UNREACH, ICMP_UNREACH_FILTER_PROHIB }, 156 { "host-preced", ICMP_UNREACH, ICMP_UNREACH_HOST_PRECEDENCE }, 157 { "cutoff-preced", ICMP_UNREACH, ICMP_UNREACH_PRECEDENCE_CUTOFF }, 158 { "redir-net", ICMP_REDIRECT, ICMP_REDIRECT_NET }, 159 { "redir-host", ICMP_REDIRECT, ICMP_REDIRECT_HOST }, 160 { "redir-tos-net", ICMP_REDIRECT, ICMP_REDIRECT_TOSNET }, 161 { "redir-tos-host", ICMP_REDIRECT, ICMP_REDIRECT_TOSHOST }, 162 { "normal-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NORMAL }, 163 { "common-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NOROUTE_COMMON }, 164 { "transit", ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS }, 165 { "reassemb", ICMP_TIMXCEED, ICMP_TIMXCEED_REASS }, 166 { "badhead", ICMP_PARAMPROB, ICMP_PARAMPROB_ERRATPTR }, 167 { "optmiss", ICMP_PARAMPROB, ICMP_PARAMPROB_OPTABSENT }, 168 { "badlen", ICMP_PARAMPROB, ICMP_PARAMPROB_LENGTH }, 169 { "unknown-ind", ICMP_PHOTURIS, ICMP_PHOTURIS_UNKNOWN_INDEX }, 170 { "auth-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_AUTH_FAILED }, 171 { "decrypt-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_DECRYPT_FAILED } 172 }; 173 174 static const struct icmpcodeent icmp6_code[] = { 175 { "admin-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN }, 176 { "noroute-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOROUTE }, 177 { "notnbr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOTNEIGHBOR }, 178 { "beyond-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_BEYONDSCOPE }, 179 { "addr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADDR }, 180 { "port-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOPORT }, 181 { "transit", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_TRANSIT }, 182 { "reassemb", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_REASSEMBLY }, 183 { "badhead", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_HEADER }, 184 { "nxthdr", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_NEXTHEADER }, 185 { "redironlink", ND_REDIRECT, ND_REDIRECT_ONLINK }, 186 { "redirrouter", ND_REDIRECT, ND_REDIRECT_ROUTER } 187 }; 188 189 const struct pf_timeout pf_timeouts[] = { 190 { "tcp.first", PFTM_TCP_FIRST_PACKET }, 191 { "tcp.opening", PFTM_TCP_OPENING }, 192 { "tcp.established", PFTM_TCP_ESTABLISHED }, 193 { "tcp.closing", PFTM_TCP_CLOSING }, 194 { "tcp.finwait", PFTM_TCP_FIN_WAIT }, 195 { "tcp.closed", PFTM_TCP_CLOSED }, 196 { "tcp.tsdiff", PFTM_TS_DIFF }, 197 { "udp.first", PFTM_UDP_FIRST_PACKET }, 198 { "udp.single", PFTM_UDP_SINGLE }, 199 { "udp.multiple", PFTM_UDP_MULTIPLE }, 200 { "icmp.first", PFTM_ICMP_FIRST_PACKET }, 201 { "icmp.error", PFTM_ICMP_ERROR_REPLY }, 202 { "other.first", PFTM_OTHER_FIRST_PACKET }, 203 { "other.single", PFTM_OTHER_SINGLE }, 204 { "other.multiple", PFTM_OTHER_MULTIPLE }, 205 { "frag", PFTM_FRAG }, 206 { "interval", PFTM_INTERVAL }, 207 { "adaptive.start", PFTM_ADAPTIVE_START }, 208 { "adaptive.end", PFTM_ADAPTIVE_END }, 209 { "src.track", PFTM_SRC_NODE }, 210 { NULL, 0 } 211 }; 212 213 static struct hsearch_data isgroup_map; 214 215 static __attribute__((constructor)) void 216 pfctl_parser_init(void) 217 { 218 /* 219 * As hdestroy() will never be called on these tables, it will be 220 * safe to use references into the stored data as keys. 221 */ 222 if (hcreate_r(0, &isgroup_map) == 0) 223 err(1, "Failed to create interface group query response map"); 224 } 225 226 const struct icmptypeent * 227 geticmptypebynumber(u_int8_t type, sa_family_t af) 228 { 229 unsigned int i; 230 231 if (af != AF_INET6) { 232 for (i=0; i < nitems(icmp_type); i++) { 233 if (type == icmp_type[i].type) 234 return (&icmp_type[i]); 235 } 236 } else { 237 for (i=0; i < nitems(icmp6_type); i++) { 238 if (type == icmp6_type[i].type) 239 return (&icmp6_type[i]); 240 } 241 } 242 return (NULL); 243 } 244 245 const struct icmptypeent * 246 geticmptypebyname(char *w, sa_family_t af) 247 { 248 unsigned int i; 249 250 if (af != AF_INET6) { 251 for (i=0; i < nitems(icmp_type); i++) { 252 if (!strcmp(w, icmp_type[i].name)) 253 return (&icmp_type[i]); 254 } 255 } else { 256 for (i=0; i < nitems(icmp6_type); i++) { 257 if (!strcmp(w, icmp6_type[i].name)) 258 return (&icmp6_type[i]); 259 } 260 } 261 return (NULL); 262 } 263 264 const struct icmpcodeent * 265 geticmpcodebynumber(u_int8_t type, u_int8_t code, sa_family_t af) 266 { 267 unsigned int i; 268 269 if (af != AF_INET6) { 270 for (i=0; i < nitems(icmp_code); i++) { 271 if (type == icmp_code[i].type && 272 code == icmp_code[i].code) 273 return (&icmp_code[i]); 274 } 275 } else { 276 for (i=0; i < nitems(icmp6_code); i++) { 277 if (type == icmp6_code[i].type && 278 code == icmp6_code[i].code) 279 return (&icmp6_code[i]); 280 } 281 } 282 return (NULL); 283 } 284 285 const struct icmpcodeent * 286 geticmpcodebyname(u_long type, char *w, sa_family_t af) 287 { 288 unsigned int i; 289 290 if (af != AF_INET6) { 291 for (i=0; i < nitems(icmp_code); i++) { 292 if (type == icmp_code[i].type && 293 !strcmp(w, icmp_code[i].name)) 294 return (&icmp_code[i]); 295 } 296 } else { 297 for (i=0; i < nitems(icmp6_code); i++) { 298 if (type == icmp6_code[i].type && 299 !strcmp(w, icmp6_code[i].name)) 300 return (&icmp6_code[i]); 301 } 302 } 303 return (NULL); 304 } 305 306 void 307 print_op(u_int8_t op, const char *a1, const char *a2) 308 { 309 if (op == PF_OP_IRG) 310 printf(" %s >< %s", a1, a2); 311 else if (op == PF_OP_XRG) 312 printf(" %s <> %s", a1, a2); 313 else if (op == PF_OP_EQ) 314 printf(" = %s", a1); 315 else if (op == PF_OP_NE) 316 printf(" != %s", a1); 317 else if (op == PF_OP_LT) 318 printf(" < %s", a1); 319 else if (op == PF_OP_LE) 320 printf(" <= %s", a1); 321 else if (op == PF_OP_GT) 322 printf(" > %s", a1); 323 else if (op == PF_OP_GE) 324 printf(" >= %s", a1); 325 else if (op == PF_OP_RRG) 326 printf(" %s:%s", a1, a2); 327 } 328 329 void 330 print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int numeric) 331 { 332 char a1[6], a2[6]; 333 struct servent *s; 334 335 if (!numeric) 336 s = getservbyport(p1, proto); 337 else 338 s = NULL; 339 p1 = ntohs(p1); 340 p2 = ntohs(p2); 341 snprintf(a1, sizeof(a1), "%u", p1); 342 snprintf(a2, sizeof(a2), "%u", p2); 343 printf(" port"); 344 if (s != NULL && (op == PF_OP_EQ || op == PF_OP_NE)) 345 print_op(op, s->s_name, a2); 346 else 347 print_op(op, a1, a2); 348 } 349 350 void 351 print_ugid(u_int8_t op, unsigned u1, unsigned u2, const char *t, unsigned umax) 352 { 353 char a1[11], a2[11]; 354 355 snprintf(a1, sizeof(a1), "%u", u1); 356 snprintf(a2, sizeof(a2), "%u", u2); 357 printf(" %s", t); 358 if (u1 == umax && (op == PF_OP_EQ || op == PF_OP_NE)) 359 print_op(op, "unknown", a2); 360 else 361 print_op(op, a1, a2); 362 } 363 364 void 365 print_flags(u_int8_t f) 366 { 367 int i; 368 369 for (i = 0; tcpflags[i]; ++i) 370 if (f & (1 << i)) 371 printf("%c", tcpflags[i]); 372 } 373 374 void 375 print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst, 376 sa_family_t af, u_int8_t proto, int verbose, int numeric) 377 { 378 char buf[PF_OSFP_LEN*3]; 379 if (src->addr.type == PF_ADDR_ADDRMASK && 380 dst->addr.type == PF_ADDR_ADDRMASK && 381 PF_AZERO(&src->addr.v.a.addr, AF_INET6) && 382 PF_AZERO(&src->addr.v.a.mask, AF_INET6) && 383 PF_AZERO(&dst->addr.v.a.addr, AF_INET6) && 384 PF_AZERO(&dst->addr.v.a.mask, AF_INET6) && 385 !src->neg && !dst->neg && 386 !src->port_op && !dst->port_op && 387 osfp == PF_OSFP_ANY) 388 printf(" all"); 389 else { 390 printf(" from "); 391 if (src->neg) 392 printf("! "); 393 print_addr(&src->addr, af, verbose); 394 if (src->port_op) 395 print_port(src->port_op, src->port[0], 396 src->port[1], 397 proto == IPPROTO_TCP ? "tcp" : "udp", 398 numeric); 399 if (osfp != PF_OSFP_ANY) 400 printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf, 401 sizeof(buf))); 402 403 printf(" to "); 404 if (dst->neg) 405 printf("! "); 406 print_addr(&dst->addr, af, verbose); 407 if (dst->port_op) 408 print_port(dst->port_op, dst->port[0], 409 dst->port[1], 410 proto == IPPROTO_TCP ? "tcp" : "udp", 411 numeric); 412 } 413 } 414 415 void 416 print_pool(struct pfctl_pool *pool, u_int16_t p1, u_int16_t p2, 417 sa_family_t af, int id) 418 { 419 struct pf_pooladdr *pooladdr; 420 421 if ((TAILQ_FIRST(&pool->list) != NULL) && 422 TAILQ_NEXT(TAILQ_FIRST(&pool->list), entries) != NULL) 423 printf("{ "); 424 TAILQ_FOREACH(pooladdr, &pool->list, entries){ 425 switch (id) { 426 case PF_NAT: 427 case PF_RDR: 428 case PF_BINAT: 429 print_addr(&pooladdr->addr, af, 0); 430 break; 431 case PF_PASS: 432 if (PF_AZERO(&pooladdr->addr.v.a.addr, af)) 433 printf("%s", pooladdr->ifname); 434 else { 435 printf("(%s ", pooladdr->ifname); 436 print_addr(&pooladdr->addr, af, 0); 437 printf(")"); 438 } 439 break; 440 default: 441 break; 442 } 443 if (TAILQ_NEXT(pooladdr, entries) != NULL) 444 printf(", "); 445 else if (TAILQ_NEXT(TAILQ_FIRST(&pool->list), entries) != NULL) 446 printf(" }"); 447 } 448 switch (id) { 449 case PF_NAT: 450 if ((p1 != PF_NAT_PROXY_PORT_LOW || 451 p2 != PF_NAT_PROXY_PORT_HIGH) && (p1 != 0 || p2 != 0)) { 452 if (p1 == p2) 453 printf(" port %u", p1); 454 else 455 printf(" port %u:%u", p1, p2); 456 } 457 break; 458 case PF_RDR: 459 if (p1) { 460 printf(" port %u", p1); 461 if (p2 && (p2 != p1)) 462 printf(":%u", p2); 463 } 464 break; 465 default: 466 break; 467 } 468 switch (pool->opts & PF_POOL_TYPEMASK) { 469 case PF_POOL_NONE: 470 break; 471 case PF_POOL_BITMASK: 472 printf(" bitmask"); 473 break; 474 case PF_POOL_RANDOM: 475 printf(" random"); 476 break; 477 case PF_POOL_SRCHASH: 478 printf(" source-hash 0x%08x%08x%08x%08x", 479 pool->key.key32[0], pool->key.key32[1], 480 pool->key.key32[2], pool->key.key32[3]); 481 break; 482 case PF_POOL_ROUNDROBIN: 483 printf(" round-robin"); 484 break; 485 } 486 if (pool->opts & PF_POOL_STICKYADDR) 487 printf(" sticky-address"); 488 if (id == PF_NAT && p1 == 0 && p2 == 0) 489 printf(" static-port"); 490 if (pool->mape.offset > 0) 491 printf(" map-e-portset %u/%u/%u", 492 pool->mape.offset, pool->mape.psidlen, pool->mape.psid); 493 } 494 495 const char * const pf_reasons[PFRES_MAX+1] = PFRES_NAMES; 496 const char * const pf_lcounters[LCNT_MAX+1] = LCNT_NAMES; 497 const char * const pf_fcounters[FCNT_MAX+1] = FCNT_NAMES; 498 const char * const pf_scounters[FCNT_MAX+1] = FCNT_NAMES; 499 500 void 501 print_status(struct pfctl_status *s, struct pfctl_syncookies *cookies, int opts) 502 { 503 struct pfctl_status_counter *c; 504 char statline[80], *running; 505 time_t runtime; 506 int i; 507 char buf[PF_MD5_DIGEST_LENGTH * 2 + 1]; 508 static const char hex[] = "0123456789abcdef"; 509 510 runtime = time(NULL) - s->since; 511 running = s->running ? "Enabled" : "Disabled"; 512 513 if (s->since) { 514 unsigned int sec, min, hrs, day = runtime; 515 516 sec = day % 60; 517 day /= 60; 518 min = day % 60; 519 day /= 60; 520 hrs = day % 24; 521 day /= 24; 522 snprintf(statline, sizeof(statline), 523 "Status: %s for %u days %.2u:%.2u:%.2u", 524 running, day, hrs, min, sec); 525 } else 526 snprintf(statline, sizeof(statline), "Status: %s", running); 527 printf("%-44s", statline); 528 switch (s->debug) { 529 case PF_DEBUG_NONE: 530 printf("%15s\n\n", "Debug: None"); 531 break; 532 case PF_DEBUG_URGENT: 533 printf("%15s\n\n", "Debug: Urgent"); 534 break; 535 case PF_DEBUG_MISC: 536 printf("%15s\n\n", "Debug: Misc"); 537 break; 538 case PF_DEBUG_NOISY: 539 printf("%15s\n\n", "Debug: Loud"); 540 break; 541 } 542 543 if (opts & PF_OPT_VERBOSE) { 544 printf("Hostid: 0x%08x\n", ntohl(s->hostid)); 545 546 for (i = 0; i < PF_MD5_DIGEST_LENGTH; i++) { 547 buf[i + i] = hex[s->pf_chksum[i] >> 4]; 548 buf[i + i + 1] = hex[s->pf_chksum[i] & 0x0f]; 549 } 550 buf[i + i] = '\0'; 551 printf("Checksum: 0x%s\n\n", buf); 552 } 553 554 if (s->ifname[0] != 0) { 555 printf("Interface Stats for %-16s %5s %16s\n", 556 s->ifname, "IPv4", "IPv6"); 557 printf(" %-25s %14llu %16llu\n", "Bytes In", 558 (unsigned long long)s->bcounters[0][0], 559 (unsigned long long)s->bcounters[1][0]); 560 printf(" %-25s %14llu %16llu\n", "Bytes Out", 561 (unsigned long long)s->bcounters[0][1], 562 (unsigned long long)s->bcounters[1][1]); 563 printf(" Packets In\n"); 564 printf(" %-23s %14llu %16llu\n", "Passed", 565 (unsigned long long)s->pcounters[0][0][PF_PASS], 566 (unsigned long long)s->pcounters[1][0][PF_PASS]); 567 printf(" %-23s %14llu %16llu\n", "Blocked", 568 (unsigned long long)s->pcounters[0][0][PF_DROP], 569 (unsigned long long)s->pcounters[1][0][PF_DROP]); 570 printf(" Packets Out\n"); 571 printf(" %-23s %14llu %16llu\n", "Passed", 572 (unsigned long long)s->pcounters[0][1][PF_PASS], 573 (unsigned long long)s->pcounters[1][1][PF_PASS]); 574 printf(" %-23s %14llu %16llu\n\n", "Blocked", 575 (unsigned long long)s->pcounters[0][1][PF_DROP], 576 (unsigned long long)s->pcounters[1][1][PF_DROP]); 577 } 578 printf("%-27s %14s %16s\n", "State Table", "Total", "Rate"); 579 printf(" %-25s %14ju %14s\n", "current entries", s->states, ""); 580 TAILQ_FOREACH(c, &s->fcounters, entry) { 581 printf(" %-25s %14ju ", c->name, c->counter); 582 if (runtime > 0) 583 printf("%14.1f/s\n", 584 (double)c->counter / (double)runtime); 585 else 586 printf("%14s\n", ""); 587 } 588 if (opts & PF_OPT_VERBOSE) { 589 printf("Source Tracking Table\n"); 590 printf(" %-25s %14ju %14s\n", "current entries", 591 s->src_nodes, ""); 592 TAILQ_FOREACH(c, &s->scounters, entry) { 593 printf(" %-25s %14ju ", c->name, c->counter); 594 if (runtime > 0) 595 printf("%14.1f/s\n", 596 (double)c->counter / (double)runtime); 597 else 598 printf("%14s\n", ""); 599 } 600 } 601 printf("Counters\n"); 602 TAILQ_FOREACH(c, &s->counters, entry) { 603 printf(" %-25s %14ju ", c->name, c->counter); 604 if (runtime > 0) 605 printf("%14.1f/s\n", 606 (double)c->counter / (double)runtime); 607 else 608 printf("%14s\n", ""); 609 } 610 if (opts & PF_OPT_VERBOSE) { 611 printf("Limit Counters\n"); 612 TAILQ_FOREACH(c, &s->lcounters, entry) { 613 printf(" %-25s %14ju ", c->name, c->counter); 614 if (runtime > 0) 615 printf("%14.1f/s\n", 616 (double)c->counter / (double)runtime); 617 else 618 printf("%14s\n", ""); 619 } 620 621 printf("Syncookies\n"); 622 assert(cookies->mode <= PFCTL_SYNCOOKIES_ADAPTIVE); 623 printf(" %-25s %s\n", "mode", 624 PFCTL_SYNCOOKIES_MODE_NAMES[cookies->mode]); 625 } 626 } 627 628 void 629 print_running(struct pfctl_status *status) 630 { 631 printf("%s\n", status->running ? "Enabled" : "Disabled"); 632 } 633 634 void 635 print_src_node(struct pf_src_node *sn, int opts) 636 { 637 struct pf_addr_wrap aw; 638 int min, sec; 639 640 memset(&aw, 0, sizeof(aw)); 641 if (sn->af == AF_INET) 642 aw.v.a.mask.addr32[0] = 0xffffffff; 643 else 644 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask)); 645 646 aw.v.a.addr = sn->addr; 647 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2); 648 printf(" -> "); 649 aw.v.a.addr = sn->raddr; 650 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2); 651 printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states, 652 sn->conn, sn->conn_rate.count / 1000, 653 (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds); 654 if (opts & PF_OPT_VERBOSE) { 655 sec = sn->creation % 60; 656 sn->creation /= 60; 657 min = sn->creation % 60; 658 sn->creation /= 60; 659 printf(" age %.2u:%.2u:%.2u", sn->creation, min, sec); 660 if (sn->states == 0) { 661 sec = sn->expire % 60; 662 sn->expire /= 60; 663 min = sn->expire % 60; 664 sn->expire /= 60; 665 printf(", expires in %.2u:%.2u:%.2u", 666 sn->expire, min, sec); 667 } 668 printf(", %llu pkts, %llu bytes", 669 #ifdef __FreeBSD__ 670 (unsigned long long)(sn->packets[0] + sn->packets[1]), 671 (unsigned long long)(sn->bytes[0] + sn->bytes[1])); 672 #else 673 sn->packets[0] + sn->packets[1], 674 sn->bytes[0] + sn->bytes[1]); 675 #endif 676 switch (sn->ruletype) { 677 case PF_NAT: 678 if (sn->rule.nr != -1) 679 printf(", nat rule %u", sn->rule.nr); 680 break; 681 case PF_RDR: 682 if (sn->rule.nr != -1) 683 printf(", rdr rule %u", sn->rule.nr); 684 break; 685 case PF_PASS: 686 if (sn->rule.nr != -1) 687 printf(", filter rule %u", sn->rule.nr); 688 break; 689 } 690 printf("\n"); 691 } 692 } 693 694 void 695 print_rule(struct pfctl_rule *r, const char *anchor_call, int verbose, int numeric) 696 { 697 static const char *actiontypes[] = { "pass", "block", "scrub", 698 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr" }; 699 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 700 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 701 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 702 int i, opts; 703 704 if (verbose) 705 printf("@%d ", r->nr); 706 if (r->action == PF_MATCH) 707 printf("match"); 708 else if (r->action > PF_NORDR) 709 printf("action(%d)", r->action); 710 else if (anchor_call[0]) { 711 if (anchor_call[0] == '_') { 712 printf("%s", anchortypes[r->action]); 713 } else 714 printf("%s \"%s\"", anchortypes[r->action], 715 anchor_call); 716 } else { 717 printf("%s", actiontypes[r->action]); 718 if (r->natpass) 719 printf(" pass"); 720 } 721 if (r->action == PF_DROP) { 722 if (r->rule_flag & PFRULE_RETURN) 723 printf(" return"); 724 else if (r->rule_flag & PFRULE_RETURNRST) { 725 if (!r->return_ttl) 726 printf(" return-rst"); 727 else 728 printf(" return-rst(ttl %d)", r->return_ttl); 729 } else if (r->rule_flag & PFRULE_RETURNICMP) { 730 const struct icmpcodeent *ic, *ic6; 731 732 ic = geticmpcodebynumber(r->return_icmp >> 8, 733 r->return_icmp & 255, AF_INET); 734 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 735 r->return_icmp6 & 255, AF_INET6); 736 737 switch (r->af) { 738 case AF_INET: 739 printf(" return-icmp"); 740 if (ic == NULL) 741 printf("(%u)", r->return_icmp & 255); 742 else 743 printf("(%s)", ic->name); 744 break; 745 case AF_INET6: 746 printf(" return-icmp6"); 747 if (ic6 == NULL) 748 printf("(%u)", r->return_icmp6 & 255); 749 else 750 printf("(%s)", ic6->name); 751 break; 752 default: 753 printf(" return-icmp"); 754 if (ic == NULL) 755 printf("(%u, ", r->return_icmp & 255); 756 else 757 printf("(%s, ", ic->name); 758 if (ic6 == NULL) 759 printf("%u)", r->return_icmp6 & 255); 760 else 761 printf("%s)", ic6->name); 762 break; 763 } 764 } else 765 printf(" drop"); 766 } 767 if (r->direction == PF_IN) 768 printf(" in"); 769 else if (r->direction == PF_OUT) 770 printf(" out"); 771 if (r->log) { 772 printf(" log"); 773 if (r->log & ~PF_LOG || r->logif) { 774 int count = 0; 775 776 printf(" ("); 777 if (r->log & PF_LOG_ALL) 778 printf("%sall", count++ ? ", " : ""); 779 if (r->log & PF_LOG_SOCKET_LOOKUP) 780 printf("%suser", count++ ? ", " : ""); 781 if (r->logif) 782 printf("%sto pflog%u", count++ ? ", " : "", 783 r->logif); 784 printf(")"); 785 } 786 } 787 if (r->quick) 788 printf(" quick"); 789 if (r->ifname[0]) { 790 if (r->ifnot) 791 printf(" on ! %s", r->ifname); 792 else 793 printf(" on %s", r->ifname); 794 } 795 if (r->rt) { 796 if (r->rt == PF_ROUTETO) 797 printf(" route-to"); 798 else if (r->rt == PF_REPLYTO) 799 printf(" reply-to"); 800 else if (r->rt == PF_DUPTO) 801 printf(" dup-to"); 802 printf(" "); 803 print_pool(&r->rpool, 0, 0, r->af, PF_PASS); 804 } 805 if (r->af) { 806 if (r->af == AF_INET) 807 printf(" inet"); 808 else 809 printf(" inet6"); 810 } 811 if (r->proto) { 812 const char *protoname; 813 814 if ((protoname = pfctl_proto2name(r->proto)) != NULL) 815 printf(" proto %s", protoname); 816 else 817 printf(" proto %u", r->proto); 818 } 819 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 820 verbose, numeric); 821 if (r->uid.op) 822 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 823 UID_MAX); 824 if (r->gid.op) 825 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 826 GID_MAX); 827 if (r->flags || r->flagset) { 828 printf(" flags "); 829 print_flags(r->flags); 830 printf("/"); 831 print_flags(r->flagset); 832 } else if (r->action == PF_PASS && 833 (!r->proto || r->proto == IPPROTO_TCP) && 834 !(r->rule_flag & PFRULE_FRAGMENT) && 835 !anchor_call[0] && r->keep_state) 836 printf(" flags any"); 837 if (r->type) { 838 const struct icmptypeent *it; 839 840 it = geticmptypebynumber(r->type-1, r->af); 841 if (r->af != AF_INET6) 842 printf(" icmp-type"); 843 else 844 printf(" icmp6-type"); 845 if (it != NULL) 846 printf(" %s", it->name); 847 else 848 printf(" %u", r->type-1); 849 if (r->code) { 850 const struct icmpcodeent *ic; 851 852 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 853 if (ic != NULL) 854 printf(" code %s", ic->name); 855 else 856 printf(" code %u", r->code-1); 857 } 858 } 859 if (r->tos) 860 printf(" tos 0x%2.2x", r->tos); 861 if (r->prio) 862 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio); 863 if (r->scrub_flags & PFSTATE_SETMASK) { 864 char *comma = ""; 865 printf(" set ("); 866 if (r->scrub_flags & PFSTATE_SETPRIO) { 867 if (r->set_prio[0] == r->set_prio[1]) 868 printf("%s prio %u", comma, r->set_prio[0]); 869 else 870 printf("%s prio(%u, %u)", comma, r->set_prio[0], 871 r->set_prio[1]); 872 comma = ","; 873 } 874 printf(" )"); 875 } 876 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 877 printf(" no state"); 878 else if (r->keep_state == PF_STATE_NORMAL) 879 printf(" keep state"); 880 else if (r->keep_state == PF_STATE_MODULATE) 881 printf(" modulate state"); 882 else if (r->keep_state == PF_STATE_SYNPROXY) 883 printf(" synproxy state"); 884 if (r->prob) { 885 char buf[20]; 886 887 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 888 for (i = strlen(buf)-1; i > 0; i--) { 889 if (buf[i] == '0') 890 buf[i] = '\0'; 891 else { 892 if (buf[i] == '.') 893 buf[i] = '\0'; 894 break; 895 } 896 } 897 printf(" probability %s%%", buf); 898 } 899 opts = 0; 900 if (r->max_states || r->max_src_nodes || r->max_src_states) 901 opts = 1; 902 if (r->rule_flag & PFRULE_NOSYNC) 903 opts = 1; 904 if (r->rule_flag & PFRULE_SRCTRACK) 905 opts = 1; 906 if (r->rule_flag & PFRULE_IFBOUND) 907 opts = 1; 908 if (r->rule_flag & PFRULE_STATESLOPPY) 909 opts = 1; 910 for (i = 0; !opts && i < PFTM_MAX; ++i) 911 if (r->timeout[i]) 912 opts = 1; 913 if (opts) { 914 printf(" ("); 915 if (r->max_states) { 916 printf("max %u", r->max_states); 917 opts = 0; 918 } 919 if (r->rule_flag & PFRULE_NOSYNC) { 920 if (!opts) 921 printf(", "); 922 printf("no-sync"); 923 opts = 0; 924 } 925 if (r->rule_flag & PFRULE_SRCTRACK) { 926 if (!opts) 927 printf(", "); 928 printf("source-track"); 929 if (r->rule_flag & PFRULE_RULESRCTRACK) 930 printf(" rule"); 931 else 932 printf(" global"); 933 opts = 0; 934 } 935 if (r->max_src_states) { 936 if (!opts) 937 printf(", "); 938 printf("max-src-states %u", r->max_src_states); 939 opts = 0; 940 } 941 if (r->max_src_conn) { 942 if (!opts) 943 printf(", "); 944 printf("max-src-conn %u", r->max_src_conn); 945 opts = 0; 946 } 947 if (r->max_src_conn_rate.limit) { 948 if (!opts) 949 printf(", "); 950 printf("max-src-conn-rate %u/%u", 951 r->max_src_conn_rate.limit, 952 r->max_src_conn_rate.seconds); 953 opts = 0; 954 } 955 if (r->max_src_nodes) { 956 if (!opts) 957 printf(", "); 958 printf("max-src-nodes %u", r->max_src_nodes); 959 opts = 0; 960 } 961 if (r->overload_tblname[0]) { 962 if (!opts) 963 printf(", "); 964 printf("overload <%s>", r->overload_tblname); 965 if (r->flush) 966 printf(" flush"); 967 if (r->flush & PF_FLUSH_GLOBAL) 968 printf(" global"); 969 } 970 if (r->rule_flag & PFRULE_IFBOUND) { 971 if (!opts) 972 printf(", "); 973 printf("if-bound"); 974 opts = 0; 975 } 976 if (r->rule_flag & PFRULE_STATESLOPPY) { 977 if (!opts) 978 printf(", "); 979 printf("sloppy"); 980 opts = 0; 981 } 982 for (i = 0; i < PFTM_MAX; ++i) 983 if (r->timeout[i]) { 984 int j; 985 986 if (!opts) 987 printf(", "); 988 opts = 0; 989 for (j = 0; pf_timeouts[j].name != NULL; 990 ++j) 991 if (pf_timeouts[j].timeout == i) 992 break; 993 printf("%s %u", pf_timeouts[j].name == NULL ? 994 "inv.timeout" : pf_timeouts[j].name, 995 r->timeout[i]); 996 } 997 printf(")"); 998 } 999 if (r->rule_flag & PFRULE_FRAGMENT) 1000 printf(" fragment"); 1001 if (r->rule_flag & PFRULE_NODF) 1002 printf(" no-df"); 1003 if (r->rule_flag & PFRULE_RANDOMID) 1004 printf(" random-id"); 1005 if (r->min_ttl) 1006 printf(" min-ttl %d", r->min_ttl); 1007 if (r->max_mss) 1008 printf(" max-mss %d", r->max_mss); 1009 if (r->rule_flag & PFRULE_SET_TOS) 1010 printf(" set-tos 0x%2.2x", r->set_tos); 1011 if (r->allow_opts) 1012 printf(" allow-opts"); 1013 if (r->action == PF_SCRUB) { 1014 if (r->rule_flag & PFRULE_REASSEMBLE_TCP) 1015 printf(" reassemble tcp"); 1016 1017 printf(" fragment reassemble"); 1018 } 1019 i = 0; 1020 while (r->label[i][0]) 1021 printf(" label \"%s\"", r->label[i++]); 1022 /* Only dnrpipe as we might do (0, 42) to only queue return traffic. */ 1023 if (r->dnrpipe) 1024 printf(" %s(%d, %d)", 1025 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1026 r->dnpipe, r->dnrpipe); 1027 else if (r->dnpipe) 1028 printf(" %s %d", 1029 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1030 r->dnpipe); 1031 if (r->qname[0] && r->pqname[0]) 1032 printf(" queue(%s, %s)", r->qname, r->pqname); 1033 else if (r->qname[0]) 1034 printf(" queue %s", r->qname); 1035 if (r->tagname[0]) 1036 printf(" tag %s", r->tagname); 1037 if (r->match_tagname[0]) { 1038 if (r->match_tag_not) 1039 printf(" !"); 1040 printf(" tagged %s", r->match_tagname); 1041 } 1042 if (r->rtableid != -1) 1043 printf(" rtable %u", r->rtableid); 1044 if (r->divert.port) { 1045 #ifdef __FreeBSD__ 1046 printf(" divert-to %u", ntohs(r->divert.port)); 1047 #else 1048 if (PF_AZERO(&r->divert.addr, r->af)) { 1049 printf(" divert-reply"); 1050 } else { 1051 /* XXX cut&paste from print_addr */ 1052 char buf[48]; 1053 1054 printf(" divert-to "); 1055 if (inet_ntop(r->af, &r->divert.addr, buf, 1056 sizeof(buf)) == NULL) 1057 printf("?"); 1058 else 1059 printf("%s", buf); 1060 printf(" port %u", ntohs(r->divert.port)); 1061 } 1062 #endif 1063 } 1064 if (!anchor_call[0] && (r->action == PF_NAT || 1065 r->action == PF_BINAT || r->action == PF_RDR)) { 1066 printf(" -> "); 1067 print_pool(&r->rpool, r->rpool.proxy_port[0], 1068 r->rpool.proxy_port[1], r->af, r->action); 1069 } 1070 } 1071 1072 void 1073 print_tabledef(const char *name, int flags, int addrs, 1074 struct node_tinithead *nodes) 1075 { 1076 struct node_tinit *ti, *nti; 1077 struct node_host *h; 1078 1079 printf("table <%s>", name); 1080 if (flags & PFR_TFLAG_CONST) 1081 printf(" const"); 1082 if (flags & PFR_TFLAG_PERSIST) 1083 printf(" persist"); 1084 if (flags & PFR_TFLAG_COUNTERS) 1085 printf(" counters"); 1086 SIMPLEQ_FOREACH(ti, nodes, entries) { 1087 if (ti->file) { 1088 printf(" file \"%s\"", ti->file); 1089 continue; 1090 } 1091 printf(" {"); 1092 for (;;) { 1093 for (h = ti->host; h != NULL; h = h->next) { 1094 printf(h->not ? " !" : " "); 1095 print_addr(&h->addr, h->af, 0); 1096 } 1097 nti = SIMPLEQ_NEXT(ti, entries); 1098 if (nti != NULL && nti->file == NULL) 1099 ti = nti; /* merge lists */ 1100 else 1101 break; 1102 } 1103 printf(" }"); 1104 } 1105 if (addrs && SIMPLEQ_EMPTY(nodes)) 1106 printf(" { }"); 1107 printf("\n"); 1108 } 1109 1110 int 1111 parse_flags(char *s) 1112 { 1113 char *p, *q; 1114 u_int8_t f = 0; 1115 1116 for (p = s; *p; p++) { 1117 if ((q = strchr(tcpflags, *p)) == NULL) 1118 return -1; 1119 else 1120 f |= 1 << (q - tcpflags); 1121 } 1122 return (f ? f : PF_TH_ALL); 1123 } 1124 1125 void 1126 set_ipmask(struct node_host *h, u_int8_t b) 1127 { 1128 struct pf_addr *m, *n; 1129 int i, j = 0; 1130 1131 m = &h->addr.v.a.mask; 1132 memset(m, 0, sizeof(*m)); 1133 1134 while (b >= 32) { 1135 m->addr32[j++] = 0xffffffff; 1136 b -= 32; 1137 } 1138 for (i = 31; i > 31-b; --i) 1139 m->addr32[j] |= (1 << i); 1140 if (b) 1141 m->addr32[j] = htonl(m->addr32[j]); 1142 1143 /* Mask off bits of the address that will never be used. */ 1144 n = &h->addr.v.a.addr; 1145 if (h->addr.type == PF_ADDR_ADDRMASK) 1146 for (i = 0; i < 4; i++) 1147 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1148 } 1149 1150 int 1151 check_netmask(struct node_host *h, sa_family_t af) 1152 { 1153 struct node_host *n = NULL; 1154 struct pf_addr *m; 1155 1156 for (n = h; n != NULL; n = n->next) { 1157 if (h->addr.type == PF_ADDR_TABLE) 1158 continue; 1159 m = &h->addr.v.a.mask; 1160 /* fix up netmask for dynaddr */ 1161 if (af == AF_INET && h->addr.type == PF_ADDR_DYNIFTL && 1162 unmask(m, AF_INET6) > 32) 1163 set_ipmask(n, 32); 1164 /* netmasks > 32 bit are invalid on v4 */ 1165 if (af == AF_INET && 1166 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1167 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1168 unmask(m, AF_INET6)); 1169 return (1); 1170 } 1171 } 1172 return (0); 1173 } 1174 1175 /* interface lookup routines */ 1176 1177 static struct node_host *iftab; 1178 1179 /* 1180 * Retrieve the list of groups this interface is a member of and make sure 1181 * each group is in the group map. 1182 */ 1183 static void 1184 ifa_add_groups_to_map(char *ifa_name) 1185 { 1186 int s, len; 1187 struct ifgroupreq ifgr; 1188 struct ifg_req *ifg; 1189 1190 s = get_query_socket(); 1191 1192 /* Get size of group list for this interface */ 1193 memset(&ifgr, 0, sizeof(ifgr)); 1194 strlcpy(ifgr.ifgr_name, ifa_name, IFNAMSIZ); 1195 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1196 err(1, "SIOCGIFGROUP"); 1197 1198 /* Retrieve group list for this interface */ 1199 len = ifgr.ifgr_len; 1200 ifgr.ifgr_groups = 1201 (struct ifg_req *)calloc(len / sizeof(struct ifg_req), 1202 sizeof(struct ifg_req)); 1203 if (ifgr.ifgr_groups == NULL) 1204 err(1, "calloc"); 1205 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1206 err(1, "SIOCGIFGROUP"); 1207 1208 ifg = ifgr.ifgr_groups; 1209 for (; ifg && len >= sizeof(struct ifg_req); ifg++) { 1210 len -= sizeof(struct ifg_req); 1211 if (strcmp(ifg->ifgrq_group, "all")) { 1212 ENTRY item; 1213 ENTRY *ret_item; 1214 int *answer; 1215 1216 item.key = ifg->ifgrq_group; 1217 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) { 1218 struct ifgroupreq ifgr2; 1219 1220 /* Don't know the answer yet */ 1221 if ((answer = malloc(sizeof(int))) == NULL) 1222 err(1, "malloc"); 1223 1224 bzero(&ifgr2, sizeof(ifgr2)); 1225 strlcpy(ifgr2.ifgr_name, ifg->ifgrq_group, 1226 sizeof(ifgr2.ifgr_name)); 1227 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr2) == 0) 1228 *answer = ifgr2.ifgr_len; 1229 else 1230 *answer = 0; 1231 1232 item.key = strdup(ifg->ifgrq_group); 1233 item.data = answer; 1234 if (hsearch_r(item, ENTER, &ret_item, 1235 &isgroup_map) == 0) 1236 err(1, "interface group query response" 1237 " map insert"); 1238 } 1239 } 1240 } 1241 free(ifgr.ifgr_groups); 1242 } 1243 1244 void 1245 ifa_load(void) 1246 { 1247 struct ifaddrs *ifap, *ifa; 1248 struct node_host *n = NULL, *h = NULL; 1249 1250 if (getifaddrs(&ifap) < 0) 1251 err(1, "getifaddrs"); 1252 1253 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1254 if (!(ifa->ifa_addr->sa_family == AF_INET || 1255 ifa->ifa_addr->sa_family == AF_INET6 || 1256 ifa->ifa_addr->sa_family == AF_LINK)) 1257 continue; 1258 n = calloc(1, sizeof(struct node_host)); 1259 if (n == NULL) 1260 err(1, "address: calloc"); 1261 n->af = ifa->ifa_addr->sa_family; 1262 n->ifa_flags = ifa->ifa_flags; 1263 #ifdef __KAME__ 1264 if (n->af == AF_INET6 && 1265 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1266 ifa->ifa_addr)->sin6_addr) && 1267 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1268 0) { 1269 struct sockaddr_in6 *sin6; 1270 1271 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1272 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1273 sin6->sin6_addr.s6_addr[3]; 1274 sin6->sin6_addr.s6_addr[2] = 0; 1275 sin6->sin6_addr.s6_addr[3] = 0; 1276 } 1277 #endif 1278 n->ifindex = 0; 1279 if (n->af == AF_INET) { 1280 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *) 1281 ifa->ifa_addr)->sin_addr.s_addr, 1282 sizeof(struct in_addr)); 1283 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *) 1284 ifa->ifa_netmask)->sin_addr.s_addr, 1285 sizeof(struct in_addr)); 1286 if (ifa->ifa_broadaddr != NULL) 1287 memcpy(&n->bcast, &((struct sockaddr_in *) 1288 ifa->ifa_broadaddr)->sin_addr.s_addr, 1289 sizeof(struct in_addr)); 1290 if (ifa->ifa_dstaddr != NULL) 1291 memcpy(&n->peer, &((struct sockaddr_in *) 1292 ifa->ifa_dstaddr)->sin_addr.s_addr, 1293 sizeof(struct in_addr)); 1294 } else if (n->af == AF_INET6) { 1295 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *) 1296 ifa->ifa_addr)->sin6_addr.s6_addr, 1297 sizeof(struct in6_addr)); 1298 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *) 1299 ifa->ifa_netmask)->sin6_addr.s6_addr, 1300 sizeof(struct in6_addr)); 1301 if (ifa->ifa_broadaddr != NULL) 1302 memcpy(&n->bcast, &((struct sockaddr_in6 *) 1303 ifa->ifa_broadaddr)->sin6_addr.s6_addr, 1304 sizeof(struct in6_addr)); 1305 if (ifa->ifa_dstaddr != NULL) 1306 memcpy(&n->peer, &((struct sockaddr_in6 *) 1307 ifa->ifa_dstaddr)->sin6_addr.s6_addr, 1308 sizeof(struct in6_addr)); 1309 n->ifindex = ((struct sockaddr_in6 *) 1310 ifa->ifa_addr)->sin6_scope_id; 1311 } else if (n->af == AF_LINK) { 1312 ifa_add_groups_to_map(ifa->ifa_name); 1313 } 1314 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1315 err(1, "ifa_load: strdup"); 1316 n->next = NULL; 1317 n->tail = n; 1318 if (h == NULL) 1319 h = n; 1320 else { 1321 h->tail->next = n; 1322 h->tail = n; 1323 } 1324 } 1325 1326 iftab = h; 1327 freeifaddrs(ifap); 1328 } 1329 1330 static int 1331 get_socket_domain(void) 1332 { 1333 int sdom; 1334 1335 sdom = AF_UNSPEC; 1336 #ifdef WITH_INET6 1337 if (sdom == AF_UNSPEC && feature_present("inet6")) 1338 sdom = AF_INET6; 1339 #endif 1340 #ifdef WITH_INET 1341 if (sdom == AF_UNSPEC && feature_present("inet")) 1342 sdom = AF_INET; 1343 #endif 1344 if (sdom == AF_UNSPEC) 1345 sdom = AF_LINK; 1346 1347 return (sdom); 1348 } 1349 1350 int 1351 get_query_socket(void) 1352 { 1353 static int s = -1; 1354 1355 if (s == -1) { 1356 if ((s = socket(get_socket_domain(), SOCK_DGRAM, 0)) == -1) 1357 err(1, "socket"); 1358 } 1359 1360 return (s); 1361 } 1362 1363 /* 1364 * Returns the response len if the name is a group, otherwise returns 0. 1365 */ 1366 static int 1367 is_a_group(char *name) 1368 { 1369 ENTRY item; 1370 ENTRY *ret_item; 1371 1372 item.key = name; 1373 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) 1374 return (0); 1375 1376 return (*(int *)ret_item->data); 1377 } 1378 1379 struct node_host * 1380 ifa_exists(char *ifa_name) 1381 { 1382 struct node_host *n; 1383 1384 if (iftab == NULL) 1385 ifa_load(); 1386 1387 /* check whether this is a group */ 1388 if (is_a_group(ifa_name)) { 1389 /* fake a node_host */ 1390 if ((n = calloc(1, sizeof(*n))) == NULL) 1391 err(1, "calloc"); 1392 if ((n->ifname = strdup(ifa_name)) == NULL) 1393 err(1, "strdup"); 1394 return (n); 1395 } 1396 1397 for (n = iftab; n; n = n->next) { 1398 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1399 return (n); 1400 } 1401 1402 return (NULL); 1403 } 1404 1405 struct node_host * 1406 ifa_grouplookup(char *ifa_name, int flags) 1407 { 1408 struct ifg_req *ifg; 1409 struct ifgroupreq ifgr; 1410 int s, len; 1411 struct node_host *n, *h = NULL; 1412 1413 s = get_query_socket(); 1414 len = is_a_group(ifa_name); 1415 if (len == 0) 1416 return (NULL); 1417 bzero(&ifgr, sizeof(ifgr)); 1418 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1419 ifgr.ifgr_len = len; 1420 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1421 err(1, "calloc"); 1422 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1423 err(1, "SIOCGIFGMEMB"); 1424 1425 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1426 ifg++) { 1427 len -= sizeof(struct ifg_req); 1428 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1429 continue; 1430 if (h == NULL) 1431 h = n; 1432 else { 1433 h->tail->next = n; 1434 h->tail = n->tail; 1435 } 1436 } 1437 free(ifgr.ifgr_groups); 1438 1439 return (h); 1440 } 1441 1442 struct node_host * 1443 ifa_lookup(char *ifa_name, int flags) 1444 { 1445 struct node_host *p = NULL, *h = NULL, *n = NULL; 1446 int got4 = 0, got6 = 0; 1447 const char *last_if = NULL; 1448 1449 /* first load iftab and isgroup_map */ 1450 if (iftab == NULL) 1451 ifa_load(); 1452 1453 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1454 return (h); 1455 1456 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1457 ifa_name = NULL; 1458 1459 for (p = iftab; p; p = p->next) { 1460 if (ifa_skip_if(ifa_name, p)) 1461 continue; 1462 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1463 continue; 1464 if ((flags & PFI_AFLAG_BROADCAST) && 1465 !(p->ifa_flags & IFF_BROADCAST)) 1466 continue; 1467 if ((flags & PFI_AFLAG_PEER) && 1468 !(p->ifa_flags & IFF_POINTOPOINT)) 1469 continue; 1470 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1471 continue; 1472 if (last_if == NULL || strcmp(last_if, p->ifname)) 1473 got4 = got6 = 0; 1474 last_if = p->ifname; 1475 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1476 continue; 1477 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && 1478 IN6_IS_ADDR_LINKLOCAL(&p->addr.v.a.addr.v6)) 1479 continue; 1480 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1481 continue; 1482 if (p->af == AF_INET) 1483 got4 = 1; 1484 else 1485 got6 = 1; 1486 n = calloc(1, sizeof(struct node_host)); 1487 if (n == NULL) 1488 err(1, "address: calloc"); 1489 n->af = p->af; 1490 if (flags & PFI_AFLAG_BROADCAST) 1491 memcpy(&n->addr.v.a.addr, &p->bcast, 1492 sizeof(struct pf_addr)); 1493 else if (flags & PFI_AFLAG_PEER) 1494 memcpy(&n->addr.v.a.addr, &p->peer, 1495 sizeof(struct pf_addr)); 1496 else 1497 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1498 sizeof(struct pf_addr)); 1499 if (flags & PFI_AFLAG_NETWORK) 1500 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af)); 1501 else { 1502 if (n->af == AF_INET) { 1503 if (p->ifa_flags & IFF_LOOPBACK && 1504 p->ifa_flags & IFF_LINK1) 1505 memcpy(&n->addr.v.a.mask, 1506 &p->addr.v.a.mask, 1507 sizeof(struct pf_addr)); 1508 else 1509 set_ipmask(n, 32); 1510 } else 1511 set_ipmask(n, 128); 1512 } 1513 n->ifindex = p->ifindex; 1514 n->ifname = strdup(p->ifname); 1515 1516 n->next = NULL; 1517 n->tail = n; 1518 if (h == NULL) 1519 h = n; 1520 else { 1521 h->tail->next = n; 1522 h->tail = n; 1523 } 1524 } 1525 return (h); 1526 } 1527 1528 int 1529 ifa_skip_if(const char *filter, struct node_host *p) 1530 { 1531 int n; 1532 1533 if (p->af != AF_INET && p->af != AF_INET6) 1534 return (1); 1535 if (filter == NULL || !*filter) 1536 return (0); 1537 if (!strcmp(p->ifname, filter)) 1538 return (0); /* exact match */ 1539 n = strlen(filter); 1540 if (n < 1 || n >= IFNAMSIZ) 1541 return (1); /* sanity check */ 1542 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1543 return (1); /* only do exact match in that case */ 1544 if (strncmp(p->ifname, filter, n)) 1545 return (1); /* prefix doesn't match */ 1546 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1547 } 1548 1549 1550 struct node_host * 1551 host(const char *s) 1552 { 1553 struct node_host *h = NULL; 1554 int mask, v4mask, v6mask, cont = 1; 1555 char *p, *q, *ps; 1556 1557 if ((p = strrchr(s, '/')) != NULL) { 1558 mask = strtol(p+1, &q, 0); 1559 if (!q || *q || mask > 128 || q == (p+1)) { 1560 fprintf(stderr, "invalid netmask '%s'\n", p); 1561 return (NULL); 1562 } 1563 if ((ps = malloc(strlen(s) - strlen(p) + 1)) == NULL) 1564 err(1, "host: malloc"); 1565 strlcpy(ps, s, strlen(s) - strlen(p) + 1); 1566 v4mask = v6mask = mask; 1567 } else { 1568 if ((ps = strdup(s)) == NULL) 1569 err(1, "host: strdup"); 1570 v4mask = 32; 1571 v6mask = 128; 1572 mask = -1; 1573 } 1574 1575 /* IPv4 address? */ 1576 if (cont && (h = host_v4(s, mask)) != NULL) 1577 cont = 0; 1578 1579 /* IPv6 address? */ 1580 if (cont && (h = host_v6(ps, v6mask)) != NULL) 1581 cont = 0; 1582 1583 /* interface with this name exists? */ 1584 /* expensive with thousands of interfaces - prioritze IPv4/6 check */ 1585 if (cont && (h = host_if(ps, mask)) != NULL) 1586 cont = 0; 1587 1588 /* dns lookup */ 1589 if (cont && (h = host_dns(ps, v4mask, v6mask)) != NULL) 1590 cont = 0; 1591 free(ps); 1592 1593 if (h == NULL || cont == 1) { 1594 fprintf(stderr, "no IP address found for %s\n", s); 1595 return (NULL); 1596 } 1597 return (h); 1598 } 1599 1600 struct node_host * 1601 host_if(const char *s, int mask) 1602 { 1603 struct node_host *n, *h = NULL; 1604 char *p, *ps; 1605 int flags = 0; 1606 1607 if ((ps = strdup(s)) == NULL) 1608 err(1, "host_if: strdup"); 1609 while ((p = strrchr(ps, ':')) != NULL) { 1610 if (!strcmp(p+1, "network")) 1611 flags |= PFI_AFLAG_NETWORK; 1612 else if (!strcmp(p+1, "broadcast")) 1613 flags |= PFI_AFLAG_BROADCAST; 1614 else if (!strcmp(p+1, "peer")) 1615 flags |= PFI_AFLAG_PEER; 1616 else if (!strcmp(p+1, "0")) 1617 flags |= PFI_AFLAG_NOALIAS; 1618 else { 1619 free(ps); 1620 return (NULL); 1621 } 1622 *p = '\0'; 1623 } 1624 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1625 fprintf(stderr, "illegal combination of interface modifiers\n"); 1626 free(ps); 1627 return (NULL); 1628 } 1629 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1630 fprintf(stderr, "network or broadcast lookup, but " 1631 "extra netmask given\n"); 1632 free(ps); 1633 return (NULL); 1634 } 1635 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1636 /* interface with this name exists */ 1637 h = ifa_lookup(ps, flags); 1638 for (n = h; n != NULL && mask > -1; n = n->next) 1639 set_ipmask(n, mask); 1640 } 1641 1642 free(ps); 1643 return (h); 1644 } 1645 1646 struct node_host * 1647 host_v4(const char *s, int mask) 1648 { 1649 struct node_host *h = NULL; 1650 struct in_addr ina; 1651 int bits = 32; 1652 1653 memset(&ina, 0, sizeof(struct in_addr)); 1654 if (strrchr(s, '/') != NULL) { 1655 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1) 1656 return (NULL); 1657 } else { 1658 if (inet_pton(AF_INET, s, &ina) != 1) 1659 return (NULL); 1660 } 1661 1662 h = calloc(1, sizeof(struct node_host)); 1663 if (h == NULL) 1664 err(1, "address: calloc"); 1665 h->ifname = NULL; 1666 h->af = AF_INET; 1667 h->addr.v.a.addr.addr32[0] = ina.s_addr; 1668 set_ipmask(h, bits); 1669 h->next = NULL; 1670 h->tail = h; 1671 1672 return (h); 1673 } 1674 1675 struct node_host * 1676 host_v6(const char *s, int mask) 1677 { 1678 struct addrinfo hints, *res; 1679 struct node_host *h = NULL; 1680 1681 memset(&hints, 0, sizeof(hints)); 1682 hints.ai_family = AF_INET6; 1683 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1684 hints.ai_flags = AI_NUMERICHOST; 1685 if (getaddrinfo(s, "0", &hints, &res) == 0) { 1686 h = calloc(1, sizeof(struct node_host)); 1687 if (h == NULL) 1688 err(1, "address: calloc"); 1689 h->ifname = NULL; 1690 h->af = AF_INET6; 1691 memcpy(&h->addr.v.a.addr, 1692 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 1693 sizeof(h->addr.v.a.addr)); 1694 h->ifindex = 1695 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1696 set_ipmask(h, mask); 1697 freeaddrinfo(res); 1698 h->next = NULL; 1699 h->tail = h; 1700 } 1701 1702 return (h); 1703 } 1704 1705 struct node_host * 1706 host_dns(const char *s, int v4mask, int v6mask) 1707 { 1708 struct addrinfo hints, *res0, *res; 1709 struct node_host *n, *h = NULL; 1710 int error, noalias = 0; 1711 int got4 = 0, got6 = 0; 1712 char *p, *ps; 1713 1714 if ((ps = strdup(s)) == NULL) 1715 err(1, "host_dns: strdup"); 1716 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1717 noalias = 1; 1718 *p = '\0'; 1719 } 1720 memset(&hints, 0, sizeof(hints)); 1721 hints.ai_family = PF_UNSPEC; 1722 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1723 error = getaddrinfo(ps, NULL, &hints, &res0); 1724 if (error) { 1725 free(ps); 1726 return (h); 1727 } 1728 1729 for (res = res0; res; res = res->ai_next) { 1730 if (res->ai_family != AF_INET && 1731 res->ai_family != AF_INET6) 1732 continue; 1733 if (noalias) { 1734 if (res->ai_family == AF_INET) { 1735 if (got4) 1736 continue; 1737 got4 = 1; 1738 } else { 1739 if (got6) 1740 continue; 1741 got6 = 1; 1742 } 1743 } 1744 n = calloc(1, sizeof(struct node_host)); 1745 if (n == NULL) 1746 err(1, "host_dns: calloc"); 1747 n->ifname = NULL; 1748 n->af = res->ai_family; 1749 if (res->ai_family == AF_INET) { 1750 memcpy(&n->addr.v.a.addr, 1751 &((struct sockaddr_in *) 1752 res->ai_addr)->sin_addr.s_addr, 1753 sizeof(struct in_addr)); 1754 set_ipmask(n, v4mask); 1755 } else { 1756 memcpy(&n->addr.v.a.addr, 1757 &((struct sockaddr_in6 *) 1758 res->ai_addr)->sin6_addr.s6_addr, 1759 sizeof(struct in6_addr)); 1760 n->ifindex = 1761 ((struct sockaddr_in6 *) 1762 res->ai_addr)->sin6_scope_id; 1763 set_ipmask(n, v6mask); 1764 } 1765 n->next = NULL; 1766 n->tail = n; 1767 if (h == NULL) 1768 h = n; 1769 else { 1770 h->tail->next = n; 1771 h->tail = n; 1772 } 1773 } 1774 freeaddrinfo(res0); 1775 free(ps); 1776 1777 return (h); 1778 } 1779 1780 /* 1781 * convert a hostname to a list of addresses and put them in the given buffer. 1782 * test: 1783 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1784 */ 1785 int 1786 append_addr(struct pfr_buffer *b, char *s, int test) 1787 { 1788 char *r; 1789 struct node_host *h, *n; 1790 int rv, not = 0; 1791 1792 for (r = s; *r == '!'; r++) 1793 not = !not; 1794 if ((n = host(r)) == NULL) { 1795 errno = 0; 1796 return (-1); 1797 } 1798 rv = append_addr_host(b, n, test, not); 1799 do { 1800 h = n; 1801 n = n->next; 1802 free(h); 1803 } while (n != NULL); 1804 return (rv); 1805 } 1806 1807 /* 1808 * same as previous function, but with a pre-parsed input and the ability 1809 * to "negate" the result. Does not free the node_host list. 1810 * not: 1811 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1812 */ 1813 int 1814 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1815 { 1816 int bits; 1817 struct pfr_addr addr; 1818 1819 do { 1820 bzero(&addr, sizeof(addr)); 1821 addr.pfra_not = n->not ^ not; 1822 addr.pfra_af = n->af; 1823 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af); 1824 switch (n->af) { 1825 case AF_INET: 1826 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 1827 bits = 32; 1828 break; 1829 case AF_INET6: 1830 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 1831 sizeof(struct in6_addr)); 1832 bits = 128; 1833 break; 1834 default: 1835 errno = EINVAL; 1836 return (-1); 1837 } 1838 if ((test && (not || addr.pfra_net != bits)) || 1839 addr.pfra_net > bits) { 1840 errno = EINVAL; 1841 return (-1); 1842 } 1843 if (pfr_buf_add(b, &addr)) 1844 return (-1); 1845 } while ((n = n->next) != NULL); 1846 1847 return (0); 1848 } 1849 1850 int 1851 pfctl_add_trans(struct pfr_buffer *buf, int rs_num, const char *anchor) 1852 { 1853 struct pfioc_trans_e trans; 1854 1855 bzero(&trans, sizeof(trans)); 1856 trans.rs_num = rs_num; 1857 if (strlcpy(trans.anchor, anchor, 1858 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 1859 errx(1, "pfctl_add_trans: strlcpy"); 1860 1861 return pfr_buf_add(buf, &trans); 1862 } 1863 1864 u_int32_t 1865 pfctl_get_ticket(struct pfr_buffer *buf, int rs_num, const char *anchor) 1866 { 1867 struct pfioc_trans_e *p; 1868 1869 PFRB_FOREACH(p, buf) 1870 if (rs_num == p->rs_num && !strcmp(anchor, p->anchor)) 1871 return (p->ticket); 1872 errx(1, "pfctl_get_ticket: assertion failed"); 1873 } 1874 1875 int 1876 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 1877 { 1878 struct pfioc_trans trans; 1879 1880 bzero(&trans, sizeof(trans)); 1881 trans.size = buf->pfrb_size - from; 1882 trans.esize = sizeof(struct pfioc_trans_e); 1883 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 1884 return ioctl(dev, cmd, &trans); 1885 } 1886