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 #include <sys/types.h> 38 #include <sys/ioctl.h> 39 #include <sys/socket.h> 40 #include <sys/param.h> 41 #include <sys/proc.h> 42 #include <net/if.h> 43 #include <netinet/in.h> 44 #include <netinet/in_systm.h> 45 #include <netinet/ip.h> 46 #include <netinet/ip_icmp.h> 47 #include <netinet/icmp6.h> 48 #include <net/pfvar.h> 49 #include <arpa/inet.h> 50 51 #include <assert.h> 52 #include <search.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <ctype.h> 57 #include <netdb.h> 58 #include <stdarg.h> 59 #include <errno.h> 60 #include <err.h> 61 #include <ifaddrs.h> 62 #include <unistd.h> 63 64 #include "pfctl_parser.h" 65 #include "pfctl.h" 66 67 void print_op (u_int8_t, const char *, const char *); 68 void print_port (u_int8_t, u_int16_t, u_int16_t, const char *, int); 69 void print_ugid (u_int8_t, unsigned, unsigned, const char *, unsigned); 70 void print_flags (u_int8_t); 71 void print_fromto(struct pf_rule_addr *, pf_osfp_t, 72 struct pf_rule_addr *, sa_family_t, u_int8_t, int, int); 73 int ifa_skip_if(const char *filter, struct node_host *p); 74 75 struct node_host *host_if(const char *, int, int *); 76 struct node_host *host_v4(const char *, int); 77 struct node_host *host_v6(const char *, int); 78 struct node_host *host_dns(const char *, int, int); 79 80 const char * const tcpflags = "FSRPAUEW"; 81 82 static const struct icmptypeent icmp_type[] = { 83 { "echoreq", ICMP_ECHO }, 84 { "echorep", ICMP_ECHOREPLY }, 85 { "unreach", ICMP_UNREACH }, 86 { "squench", ICMP_SOURCEQUENCH }, 87 { "redir", ICMP_REDIRECT }, 88 { "althost", ICMP_ALTHOSTADDR }, 89 { "routeradv", ICMP_ROUTERADVERT }, 90 { "routersol", ICMP_ROUTERSOLICIT }, 91 { "timex", ICMP_TIMXCEED }, 92 { "paramprob", ICMP_PARAMPROB }, 93 { "timereq", ICMP_TSTAMP }, 94 { "timerep", ICMP_TSTAMPREPLY }, 95 { "inforeq", ICMP_IREQ }, 96 { "inforep", ICMP_IREQREPLY }, 97 { "maskreq", ICMP_MASKREQ }, 98 { "maskrep", ICMP_MASKREPLY }, 99 { "trace", ICMP_TRACEROUTE }, 100 { "dataconv", ICMP_DATACONVERR }, 101 { "mobredir", ICMP_MOBILE_REDIRECT }, 102 { "ipv6-where", ICMP_IPV6_WHEREAREYOU }, 103 { "ipv6-here", ICMP_IPV6_IAMHERE }, 104 { "mobregreq", ICMP_MOBILE_REGREQUEST }, 105 { "mobregrep", ICMP_MOBILE_REGREPLY }, 106 { "skip", ICMP_SKIP }, 107 { "photuris", ICMP_PHOTURIS } 108 }; 109 110 static const struct icmptypeent icmp6_type[] = { 111 { "unreach", ICMP6_DST_UNREACH }, 112 { "toobig", ICMP6_PACKET_TOO_BIG }, 113 { "timex", ICMP6_TIME_EXCEEDED }, 114 { "paramprob", ICMP6_PARAM_PROB }, 115 { "echoreq", ICMP6_ECHO_REQUEST }, 116 { "echorep", ICMP6_ECHO_REPLY }, 117 { "groupqry", ICMP6_MEMBERSHIP_QUERY }, 118 { "listqry", MLD_LISTENER_QUERY }, 119 { "grouprep", ICMP6_MEMBERSHIP_REPORT }, 120 { "listenrep", MLD_LISTENER_REPORT }, 121 { "groupterm", ICMP6_MEMBERSHIP_REDUCTION }, 122 { "listendone", MLD_LISTENER_DONE }, 123 { "routersol", ND_ROUTER_SOLICIT }, 124 { "routeradv", ND_ROUTER_ADVERT }, 125 { "neighbrsol", ND_NEIGHBOR_SOLICIT }, 126 { "neighbradv", ND_NEIGHBOR_ADVERT }, 127 { "redir", ND_REDIRECT }, 128 { "routrrenum", ICMP6_ROUTER_RENUMBERING }, 129 { "wrureq", ICMP6_WRUREQUEST }, 130 { "wrurep", ICMP6_WRUREPLY }, 131 { "fqdnreq", ICMP6_FQDN_QUERY }, 132 { "fqdnrep", ICMP6_FQDN_REPLY }, 133 { "niqry", ICMP6_NI_QUERY }, 134 { "nirep", ICMP6_NI_REPLY }, 135 { "mtraceresp", MLD_MTRACE_RESP }, 136 { "mtrace", MLD_MTRACE } 137 }; 138 139 static const struct icmpcodeent icmp_code[] = { 140 { "net-unr", ICMP_UNREACH, ICMP_UNREACH_NET }, 141 { "host-unr", ICMP_UNREACH, ICMP_UNREACH_HOST }, 142 { "proto-unr", ICMP_UNREACH, ICMP_UNREACH_PROTOCOL }, 143 { "port-unr", ICMP_UNREACH, ICMP_UNREACH_PORT }, 144 { "needfrag", ICMP_UNREACH, ICMP_UNREACH_NEEDFRAG }, 145 { "srcfail", ICMP_UNREACH, ICMP_UNREACH_SRCFAIL }, 146 { "net-unk", ICMP_UNREACH, ICMP_UNREACH_NET_UNKNOWN }, 147 { "host-unk", ICMP_UNREACH, ICMP_UNREACH_HOST_UNKNOWN }, 148 { "isolate", ICMP_UNREACH, ICMP_UNREACH_ISOLATED }, 149 { "net-prohib", ICMP_UNREACH, ICMP_UNREACH_NET_PROHIB }, 150 { "host-prohib", ICMP_UNREACH, ICMP_UNREACH_HOST_PROHIB }, 151 { "net-tos", ICMP_UNREACH, ICMP_UNREACH_TOSNET }, 152 { "host-tos", ICMP_UNREACH, ICMP_UNREACH_TOSHOST }, 153 { "filter-prohib", ICMP_UNREACH, ICMP_UNREACH_FILTER_PROHIB }, 154 { "host-preced", ICMP_UNREACH, ICMP_UNREACH_HOST_PRECEDENCE }, 155 { "cutoff-preced", ICMP_UNREACH, ICMP_UNREACH_PRECEDENCE_CUTOFF }, 156 { "redir-net", ICMP_REDIRECT, ICMP_REDIRECT_NET }, 157 { "redir-host", ICMP_REDIRECT, ICMP_REDIRECT_HOST }, 158 { "redir-tos-net", ICMP_REDIRECT, ICMP_REDIRECT_TOSNET }, 159 { "redir-tos-host", ICMP_REDIRECT, ICMP_REDIRECT_TOSHOST }, 160 { "normal-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NORMAL }, 161 { "common-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NOROUTE_COMMON }, 162 { "transit", ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS }, 163 { "reassemb", ICMP_TIMXCEED, ICMP_TIMXCEED_REASS }, 164 { "badhead", ICMP_PARAMPROB, ICMP_PARAMPROB_ERRATPTR }, 165 { "optmiss", ICMP_PARAMPROB, ICMP_PARAMPROB_OPTABSENT }, 166 { "badlen", ICMP_PARAMPROB, ICMP_PARAMPROB_LENGTH }, 167 { "unknown-ind", ICMP_PHOTURIS, ICMP_PHOTURIS_UNKNOWN_INDEX }, 168 { "auth-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_AUTH_FAILED }, 169 { "decrypt-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_DECRYPT_FAILED } 170 }; 171 172 static const struct icmpcodeent icmp6_code[] = { 173 { "admin-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN }, 174 { "noroute-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOROUTE }, 175 { "notnbr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOTNEIGHBOR }, 176 { "beyond-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_BEYONDSCOPE }, 177 { "addr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADDR }, 178 { "port-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOPORT }, 179 { "transit", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_TRANSIT }, 180 { "reassemb", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_REASSEMBLY }, 181 { "badhead", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_HEADER }, 182 { "nxthdr", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_NEXTHEADER }, 183 { "redironlink", ND_REDIRECT, ND_REDIRECT_ONLINK }, 184 { "redirrouter", ND_REDIRECT, ND_REDIRECT_ROUTER } 185 }; 186 187 const struct pf_timeout pf_timeouts[] = { 188 { "tcp.first", PFTM_TCP_FIRST_PACKET }, 189 { "tcp.opening", PFTM_TCP_OPENING }, 190 { "tcp.established", PFTM_TCP_ESTABLISHED }, 191 { "tcp.closing", PFTM_TCP_CLOSING }, 192 { "tcp.finwait", PFTM_TCP_FIN_WAIT }, 193 { "tcp.closed", PFTM_TCP_CLOSED }, 194 { "tcp.tsdiff", PFTM_TS_DIFF }, 195 { "sctp.first", PFTM_SCTP_FIRST_PACKET }, 196 { "sctp.opening", PFTM_SCTP_OPENING }, 197 { "sctp.established", PFTM_SCTP_ESTABLISHED }, 198 { "sctp.closing", PFTM_SCTP_CLOSING }, 199 { "sctp.closed", PFTM_SCTP_CLOSED }, 200 { "udp.first", PFTM_UDP_FIRST_PACKET }, 201 { "udp.single", PFTM_UDP_SINGLE }, 202 { "udp.multiple", PFTM_UDP_MULTIPLE }, 203 { "icmp.first", PFTM_ICMP_FIRST_PACKET }, 204 { "icmp.error", PFTM_ICMP_ERROR_REPLY }, 205 { "other.first", PFTM_OTHER_FIRST_PACKET }, 206 { "other.single", PFTM_OTHER_SINGLE }, 207 { "other.multiple", PFTM_OTHER_MULTIPLE }, 208 { "frag", PFTM_FRAG }, 209 { "interval", PFTM_INTERVAL }, 210 { "adaptive.start", PFTM_ADAPTIVE_START }, 211 { "adaptive.end", PFTM_ADAPTIVE_END }, 212 { "src.track", PFTM_SRC_NODE }, 213 { NULL, 0 } 214 }; 215 216 static struct hsearch_data isgroup_map; 217 218 static __attribute__((constructor)) void 219 pfctl_parser_init(void) 220 { 221 /* 222 * As hdestroy() will never be called on these tables, it will be 223 * safe to use references into the stored data as keys. 224 */ 225 if (hcreate_r(0, &isgroup_map) == 0) 226 err(1, "Failed to create interface group query response map"); 227 } 228 229 const struct icmptypeent * 230 geticmptypebynumber(u_int8_t type, sa_family_t af) 231 { 232 unsigned int i; 233 234 if (af != AF_INET6) { 235 for (i=0; i < nitems(icmp_type); i++) { 236 if (type == icmp_type[i].type) 237 return (&icmp_type[i]); 238 } 239 } else { 240 for (i=0; i < nitems(icmp6_type); i++) { 241 if (type == icmp6_type[i].type) 242 return (&icmp6_type[i]); 243 } 244 } 245 return (NULL); 246 } 247 248 const struct icmptypeent * 249 geticmptypebyname(char *w, sa_family_t af) 250 { 251 unsigned int i; 252 253 if (af != AF_INET6) { 254 for (i=0; i < nitems(icmp_type); i++) { 255 if (!strcmp(w, icmp_type[i].name)) 256 return (&icmp_type[i]); 257 } 258 } else { 259 for (i=0; i < nitems(icmp6_type); i++) { 260 if (!strcmp(w, icmp6_type[i].name)) 261 return (&icmp6_type[i]); 262 } 263 } 264 return (NULL); 265 } 266 267 const struct icmpcodeent * 268 geticmpcodebynumber(u_int8_t type, u_int8_t code, sa_family_t af) 269 { 270 unsigned int i; 271 272 if (af != AF_INET6) { 273 for (i=0; i < nitems(icmp_code); i++) { 274 if (type == icmp_code[i].type && 275 code == icmp_code[i].code) 276 return (&icmp_code[i]); 277 } 278 } else { 279 for (i=0; i < nitems(icmp6_code); i++) { 280 if (type == icmp6_code[i].type && 281 code == icmp6_code[i].code) 282 return (&icmp6_code[i]); 283 } 284 } 285 return (NULL); 286 } 287 288 const struct icmpcodeent * 289 geticmpcodebyname(u_long type, char *w, sa_family_t af) 290 { 291 unsigned int i; 292 293 if (af != AF_INET6) { 294 for (i=0; i < nitems(icmp_code); i++) { 295 if (type == icmp_code[i].type && 296 !strcmp(w, icmp_code[i].name)) 297 return (&icmp_code[i]); 298 } 299 } else { 300 for (i=0; i < nitems(icmp6_code); i++) { 301 if (type == icmp6_code[i].type && 302 !strcmp(w, icmp6_code[i].name)) 303 return (&icmp6_code[i]); 304 } 305 } 306 return (NULL); 307 } 308 309 void 310 print_op(u_int8_t op, const char *a1, const char *a2) 311 { 312 if (op == PF_OP_IRG) 313 printf(" %s >< %s", a1, a2); 314 else if (op == PF_OP_XRG) 315 printf(" %s <> %s", a1, a2); 316 else if (op == PF_OP_EQ) 317 printf(" = %s", a1); 318 else if (op == PF_OP_NE) 319 printf(" != %s", a1); 320 else if (op == PF_OP_LT) 321 printf(" < %s", a1); 322 else if (op == PF_OP_LE) 323 printf(" <= %s", a1); 324 else if (op == PF_OP_GT) 325 printf(" > %s", a1); 326 else if (op == PF_OP_GE) 327 printf(" >= %s", a1); 328 else if (op == PF_OP_RRG) 329 printf(" %s:%s", a1, a2); 330 } 331 332 void 333 print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int numeric) 334 { 335 char a1[6], a2[6]; 336 struct servent *s; 337 338 if (!numeric) 339 s = getservbyport(p1, proto); 340 else 341 s = NULL; 342 p1 = ntohs(p1); 343 p2 = ntohs(p2); 344 snprintf(a1, sizeof(a1), "%u", p1); 345 snprintf(a2, sizeof(a2), "%u", p2); 346 printf(" port"); 347 if (s != NULL && (op == PF_OP_EQ || op == PF_OP_NE)) 348 print_op(op, s->s_name, a2); 349 else 350 print_op(op, a1, a2); 351 } 352 353 void 354 print_ugid(u_int8_t op, unsigned u1, unsigned u2, const char *t, unsigned umax) 355 { 356 char a1[11], a2[11]; 357 358 snprintf(a1, sizeof(a1), "%u", u1); 359 snprintf(a2, sizeof(a2), "%u", u2); 360 printf(" %s", t); 361 if (u1 == umax && (op == PF_OP_EQ || op == PF_OP_NE)) 362 print_op(op, "unknown", a2); 363 else 364 print_op(op, a1, a2); 365 } 366 367 void 368 print_flags(u_int8_t f) 369 { 370 int i; 371 372 for (i = 0; tcpflags[i]; ++i) 373 if (f & (1 << i)) 374 printf("%c", tcpflags[i]); 375 } 376 377 void 378 print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst, 379 sa_family_t af, u_int8_t proto, int verbose, int numeric) 380 { 381 char buf[PF_OSFP_LEN*3]; 382 if (src->addr.type == PF_ADDR_ADDRMASK && 383 dst->addr.type == PF_ADDR_ADDRMASK && 384 PF_AZERO(&src->addr.v.a.addr, AF_INET6) && 385 PF_AZERO(&src->addr.v.a.mask, AF_INET6) && 386 PF_AZERO(&dst->addr.v.a.addr, AF_INET6) && 387 PF_AZERO(&dst->addr.v.a.mask, AF_INET6) && 388 !src->neg && !dst->neg && 389 !src->port_op && !dst->port_op && 390 osfp == PF_OSFP_ANY) 391 printf(" all"); 392 else { 393 printf(" from "); 394 if (src->neg) 395 printf("! "); 396 print_addr(&src->addr, af, verbose); 397 if (src->port_op) 398 print_port(src->port_op, src->port[0], 399 src->port[1], 400 proto == IPPROTO_TCP ? "tcp" : "udp", 401 numeric); 402 if (osfp != PF_OSFP_ANY) 403 printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf, 404 sizeof(buf))); 405 406 printf(" to "); 407 if (dst->neg) 408 printf("! "); 409 print_addr(&dst->addr, af, verbose); 410 if (dst->port_op) 411 print_port(dst->port_op, dst->port[0], 412 dst->port[1], 413 proto == IPPROTO_TCP ? "tcp" : "udp", 414 numeric); 415 } 416 } 417 418 void 419 print_pool(struct pfctl_pool *pool, u_int16_t p1, u_int16_t p2, 420 sa_family_t af, int id) 421 { 422 struct pf_pooladdr *pooladdr; 423 424 if ((TAILQ_FIRST(&pool->list) != NULL) && 425 TAILQ_NEXT(TAILQ_FIRST(&pool->list), entries) != NULL) 426 printf("{ "); 427 TAILQ_FOREACH(pooladdr, &pool->list, entries){ 428 switch (id) { 429 case PF_NAT: 430 case PF_RDR: 431 case PF_BINAT: 432 print_addr(&pooladdr->addr, af, 0); 433 break; 434 case PF_PASS: 435 case PF_MATCH: 436 if (PF_AZERO(&pooladdr->addr.v.a.addr, af)) 437 printf("%s", pooladdr->ifname); 438 else { 439 printf("(%s ", pooladdr->ifname); 440 print_addr(&pooladdr->addr, af, 0); 441 printf(")"); 442 } 443 break; 444 default: 445 break; 446 } 447 if (TAILQ_NEXT(pooladdr, entries) != NULL) 448 printf(", "); 449 else if (TAILQ_NEXT(TAILQ_FIRST(&pool->list), entries) != NULL) 450 printf(" }"); 451 } 452 switch (id) { 453 case PF_NAT: 454 if ((p1 != PF_NAT_PROXY_PORT_LOW || 455 p2 != PF_NAT_PROXY_PORT_HIGH) && (p1 != 0 || p2 != 0)) { 456 if (p1 == p2) 457 printf(" port %u", p1); 458 else 459 printf(" port %u:%u", p1, p2); 460 } 461 break; 462 case PF_RDR: 463 if (p1) { 464 printf(" port %u", p1); 465 if (p2 && (p2 != p1)) 466 printf(":%u", p2); 467 } 468 break; 469 default: 470 break; 471 } 472 switch (pool->opts & PF_POOL_TYPEMASK) { 473 case PF_POOL_NONE: 474 break; 475 case PF_POOL_BITMASK: 476 printf(" bitmask"); 477 break; 478 case PF_POOL_RANDOM: 479 printf(" random"); 480 break; 481 case PF_POOL_SRCHASH: 482 printf(" source-hash 0x%08x%08x%08x%08x", 483 pool->key.key32[0], pool->key.key32[1], 484 pool->key.key32[2], pool->key.key32[3]); 485 break; 486 case PF_POOL_ROUNDROBIN: 487 printf(" round-robin"); 488 break; 489 } 490 if (pool->opts & PF_POOL_STICKYADDR) 491 printf(" sticky-address"); 492 if (id == PF_NAT && p1 == 0 && p2 == 0) 493 printf(" static-port"); 494 if (pool->mape.offset > 0) 495 printf(" map-e-portset %u/%u/%u", 496 pool->mape.offset, pool->mape.psidlen, pool->mape.psid); 497 } 498 499 const char * const pf_reasons[PFRES_MAX+1] = PFRES_NAMES; 500 const char * const pf_lcounters[LCNT_MAX+1] = LCNT_NAMES; 501 const char * const pf_fcounters[FCNT_MAX+1] = FCNT_NAMES; 502 const char * const pf_scounters[FCNT_MAX+1] = FCNT_NAMES; 503 504 void 505 print_status(struct pfctl_status *s, struct pfctl_syncookies *cookies, int opts) 506 { 507 struct pfctl_status_counter *c; 508 char statline[80], *running; 509 time_t runtime; 510 int i; 511 char buf[PF_MD5_DIGEST_LENGTH * 2 + 1]; 512 static const char hex[] = "0123456789abcdef"; 513 514 runtime = time(NULL) - s->since; 515 running = s->running ? "Enabled" : "Disabled"; 516 517 if (s->since) { 518 unsigned int sec, min, hrs, day = runtime; 519 520 sec = day % 60; 521 day /= 60; 522 min = day % 60; 523 day /= 60; 524 hrs = day % 24; 525 day /= 24; 526 snprintf(statline, sizeof(statline), 527 "Status: %s for %u days %.2u:%.2u:%.2u", 528 running, day, hrs, min, sec); 529 } else 530 snprintf(statline, sizeof(statline), "Status: %s", running); 531 printf("%-44s", statline); 532 switch (s->debug) { 533 case PF_DEBUG_NONE: 534 printf("%15s\n\n", "Debug: None"); 535 break; 536 case PF_DEBUG_URGENT: 537 printf("%15s\n\n", "Debug: Urgent"); 538 break; 539 case PF_DEBUG_MISC: 540 printf("%15s\n\n", "Debug: Misc"); 541 break; 542 case PF_DEBUG_NOISY: 543 printf("%15s\n\n", "Debug: Loud"); 544 break; 545 } 546 547 if (opts & PF_OPT_VERBOSE) { 548 printf("Hostid: 0x%08x\n", s->hostid); 549 550 for (i = 0; i < PF_MD5_DIGEST_LENGTH; i++) { 551 buf[i + i] = hex[s->pf_chksum[i] >> 4]; 552 buf[i + i + 1] = hex[s->pf_chksum[i] & 0x0f]; 553 } 554 buf[i + i] = '\0'; 555 printf("Checksum: 0x%s\n\n", buf); 556 } 557 558 if (s->ifname[0] != 0) { 559 printf("Interface Stats for %-16s %5s %16s\n", 560 s->ifname, "IPv4", "IPv6"); 561 printf(" %-25s %14llu %16llu\n", "Bytes In", 562 (unsigned long long)s->bcounters[0][0], 563 (unsigned long long)s->bcounters[1][0]); 564 printf(" %-25s %14llu %16llu\n", "Bytes Out", 565 (unsigned long long)s->bcounters[0][1], 566 (unsigned long long)s->bcounters[1][1]); 567 printf(" Packets In\n"); 568 printf(" %-23s %14llu %16llu\n", "Passed", 569 (unsigned long long)s->pcounters[0][0][PF_PASS], 570 (unsigned long long)s->pcounters[1][0][PF_PASS]); 571 printf(" %-23s %14llu %16llu\n", "Blocked", 572 (unsigned long long)s->pcounters[0][0][PF_DROP], 573 (unsigned long long)s->pcounters[1][0][PF_DROP]); 574 printf(" Packets Out\n"); 575 printf(" %-23s %14llu %16llu\n", "Passed", 576 (unsigned long long)s->pcounters[0][1][PF_PASS], 577 (unsigned long long)s->pcounters[1][1][PF_PASS]); 578 printf(" %-23s %14llu %16llu\n\n", "Blocked", 579 (unsigned long long)s->pcounters[0][1][PF_DROP], 580 (unsigned long long)s->pcounters[1][1][PF_DROP]); 581 } 582 printf("%-27s %14s %16s\n", "State Table", "Total", "Rate"); 583 printf(" %-25s %14ju %14s\n", "current entries", s->states, ""); 584 TAILQ_FOREACH(c, &s->fcounters, entry) { 585 printf(" %-25s %14ju ", c->name, c->counter); 586 if (runtime > 0) 587 printf("%14.1f/s\n", 588 (double)c->counter / (double)runtime); 589 else 590 printf("%14s\n", ""); 591 } 592 if (opts & PF_OPT_VERBOSE) { 593 printf("Source Tracking Table\n"); 594 printf(" %-25s %14ju %14s\n", "current entries", 595 s->src_nodes, ""); 596 TAILQ_FOREACH(c, &s->scounters, entry) { 597 printf(" %-25s %14ju ", c->name, c->counter); 598 if (runtime > 0) 599 printf("%14.1f/s\n", 600 (double)c->counter / (double)runtime); 601 else 602 printf("%14s\n", ""); 603 } 604 } 605 printf("Counters\n"); 606 TAILQ_FOREACH(c, &s->counters, entry) { 607 printf(" %-25s %14ju ", c->name, c->counter); 608 if (runtime > 0) 609 printf("%14.1f/s\n", 610 (double)c->counter / (double)runtime); 611 else 612 printf("%14s\n", ""); 613 } 614 if (opts & PF_OPT_VERBOSE) { 615 printf("Limit Counters\n"); 616 TAILQ_FOREACH(c, &s->lcounters, entry) { 617 printf(" %-25s %14ju ", c->name, c->counter); 618 if (runtime > 0) 619 printf("%14.1f/s\n", 620 (double)c->counter / (double)runtime); 621 else 622 printf("%14s\n", ""); 623 } 624 625 printf("Syncookies\n"); 626 assert(cookies->mode <= PFCTL_SYNCOOKIES_ADAPTIVE); 627 printf(" %-25s %s\n", "mode", 628 PFCTL_SYNCOOKIES_MODE_NAMES[cookies->mode]); 629 printf(" %-25s %s\n", "active", 630 s->syncookies_active ? "active" : "inactive"); 631 printf("Reassemble %24s %s\n", 632 s->reass & PF_REASS_ENABLED ? "yes" : "no", 633 s->reass & PF_REASS_NODF ? "no-df" : "" 634 ); 635 } 636 } 637 638 void 639 print_running(struct pfctl_status *status) 640 { 641 printf("%s\n", status->running ? "Enabled" : "Disabled"); 642 } 643 644 void 645 print_src_node(struct pf_src_node *sn, int opts) 646 { 647 struct pf_addr_wrap aw; 648 int min, sec; 649 650 memset(&aw, 0, sizeof(aw)); 651 if (sn->af == AF_INET) 652 aw.v.a.mask.addr32[0] = 0xffffffff; 653 else 654 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask)); 655 656 aw.v.a.addr = sn->addr; 657 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2); 658 printf(" -> "); 659 aw.v.a.addr = sn->raddr; 660 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2); 661 printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states, 662 sn->conn, sn->conn_rate.count / 1000, 663 (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds); 664 if (opts & PF_OPT_VERBOSE) { 665 sec = sn->creation % 60; 666 sn->creation /= 60; 667 min = sn->creation % 60; 668 sn->creation /= 60; 669 printf(" age %.2u:%.2u:%.2u", sn->creation, min, sec); 670 if (sn->states == 0) { 671 sec = sn->expire % 60; 672 sn->expire /= 60; 673 min = sn->expire % 60; 674 sn->expire /= 60; 675 printf(", expires in %.2u:%.2u:%.2u", 676 sn->expire, min, sec); 677 } 678 printf(", %llu pkts, %llu bytes", 679 #ifdef __FreeBSD__ 680 (unsigned long long)(sn->packets[0] + sn->packets[1]), 681 (unsigned long long)(sn->bytes[0] + sn->bytes[1])); 682 #else 683 sn->packets[0] + sn->packets[1], 684 sn->bytes[0] + sn->bytes[1]); 685 #endif 686 switch (sn->ruletype) { 687 case PF_NAT: 688 if (sn->rule.nr != -1) 689 printf(", nat rule %u", sn->rule.nr); 690 break; 691 case PF_RDR: 692 if (sn->rule.nr != -1) 693 printf(", rdr rule %u", sn->rule.nr); 694 break; 695 case PF_PASS: 696 case PF_MATCH: 697 if (sn->rule.nr != -1) 698 printf(", filter rule %u", sn->rule.nr); 699 break; 700 } 701 printf("\n"); 702 } 703 } 704 705 static void 706 print_eth_addr(const struct pfctl_eth_addr *a) 707 { 708 int i, masklen = ETHER_ADDR_LEN * 8; 709 bool seen_unset = false; 710 711 for (i = 0; i < ETHER_ADDR_LEN; i++) { 712 if (a->addr[i] != 0) 713 break; 714 } 715 716 /* Unset, so don't print anything. */ 717 if (i == ETHER_ADDR_LEN) 718 return; 719 720 printf("%s%02x:%02x:%02x:%02x:%02x:%02x", a->neg ? "! " : "", 721 a->addr[0], a->addr[1], a->addr[2], a->addr[3], a->addr[4], 722 a->addr[5]); 723 724 for (i = 0; i < (ETHER_ADDR_LEN * 8); i++) { 725 bool isset = a->mask[i / 8] & (1 << i % 8); 726 727 if (! seen_unset) { 728 if (isset) 729 continue; 730 seen_unset = true; 731 masklen = i; 732 } else { 733 /* Not actually a continuous mask, so print the whole 734 * thing. */ 735 if (isset) 736 break; 737 continue; 738 } 739 } 740 741 if (masklen == (ETHER_ADDR_LEN * 8)) 742 return; 743 744 if (i == (ETHER_ADDR_LEN * 8)) { 745 printf("/%d", masklen); 746 return; 747 } 748 749 printf("&%02x:%02x:%02x:%02x:%02x:%02x", 750 a->mask[0], a->mask[1], a->mask[2], a->mask[3], a->mask[4], 751 a->mask[5]); 752 } 753 754 void 755 print_eth_rule(struct pfctl_eth_rule *r, const char *anchor_call, 756 int rule_numbers) 757 { 758 static const char *actiontypes[] = { "pass", "block", "", "", "", "", 759 "", "", "", "", "", "", "match" }; 760 761 int i; 762 763 if (rule_numbers) 764 printf("@%u ", r->nr); 765 766 printf("ether "); 767 if (anchor_call[0]) { 768 if (anchor_call[0] == '_') { 769 printf("anchor"); 770 } else 771 printf("anchor \"%s\"", anchor_call); 772 } else { 773 printf("%s", actiontypes[r->action]); 774 } 775 if (r->direction == PF_IN) 776 printf(" in"); 777 else if (r->direction == PF_OUT) 778 printf(" out"); 779 780 if (r->quick) 781 printf(" quick"); 782 if (r->ifname[0]) { 783 if (r->ifnot) 784 printf(" on ! %s", r->ifname); 785 else 786 printf(" on %s", r->ifname); 787 } 788 if (r->bridge_to[0]) 789 printf(" bridge-to %s", r->bridge_to); 790 if (r->proto) 791 printf(" proto 0x%04x", r->proto); 792 793 if (r->src.isset) { 794 printf(" from "); 795 print_eth_addr(&r->src); 796 } 797 if (r->dst.isset) { 798 printf(" to "); 799 print_eth_addr(&r->dst); 800 } 801 printf(" l3"); 802 print_fromto(&r->ipsrc, PF_OSFP_ANY, &r->ipdst, 803 r->proto == ETHERTYPE_IP ? AF_INET : AF_INET6, 0, 804 0, 0); 805 806 i = 0; 807 while (r->label[i][0]) 808 printf(" label \"%s\"", r->label[i++]); 809 if (r->ridentifier) 810 printf(" ridentifier %u", r->ridentifier); 811 812 if (r->qname[0]) 813 printf(" queue %s", r->qname); 814 if (r->tagname[0]) 815 printf(" tag %s", r->tagname); 816 if (r->match_tagname[0]) { 817 if (r->match_tag_not) 818 printf(" !"); 819 printf(" tagged %s", r->match_tagname); 820 } 821 if (r->dnpipe) 822 printf(" %s %d", 823 r->dnflags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 824 r->dnpipe); 825 } 826 827 void 828 print_rule(struct pfctl_rule *r, const char *anchor_call, int verbose, int numeric) 829 { 830 static const char *actiontypes[] = { "pass", "block", "scrub", 831 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr", 832 "", "", "match"}; 833 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 834 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 835 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 836 int i, opts; 837 char *p; 838 839 if (verbose) 840 printf("@%d ", r->nr); 841 if (r->action == PF_MATCH) 842 printf("match"); 843 else if (r->action > PF_NORDR) 844 printf("action(%d)", r->action); 845 else if (anchor_call[0]) { 846 p = strrchr(anchor_call, '/'); 847 if (p ? p[1] == '_' : anchor_call[0] == '_') 848 printf("%s", anchortypes[r->action]); 849 else 850 printf("%s \"%s\"", anchortypes[r->action], 851 anchor_call); 852 } else { 853 printf("%s", actiontypes[r->action]); 854 if (r->natpass) 855 printf(" pass"); 856 } 857 if (r->action == PF_DROP) { 858 if (r->rule_flag & PFRULE_RETURN) 859 printf(" return"); 860 else if (r->rule_flag & PFRULE_RETURNRST) { 861 if (!r->return_ttl) 862 printf(" return-rst"); 863 else 864 printf(" return-rst(ttl %d)", r->return_ttl); 865 } else if (r->rule_flag & PFRULE_RETURNICMP) { 866 const struct icmpcodeent *ic, *ic6; 867 868 ic = geticmpcodebynumber(r->return_icmp >> 8, 869 r->return_icmp & 255, AF_INET); 870 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 871 r->return_icmp6 & 255, AF_INET6); 872 873 switch (r->af) { 874 case AF_INET: 875 printf(" return-icmp"); 876 if (ic == NULL) 877 printf("(%u)", r->return_icmp & 255); 878 else 879 printf("(%s)", ic->name); 880 break; 881 case AF_INET6: 882 printf(" return-icmp6"); 883 if (ic6 == NULL) 884 printf("(%u)", r->return_icmp6 & 255); 885 else 886 printf("(%s)", ic6->name); 887 break; 888 default: 889 printf(" return-icmp"); 890 if (ic == NULL) 891 printf("(%u, ", r->return_icmp & 255); 892 else 893 printf("(%s, ", ic->name); 894 if (ic6 == NULL) 895 printf("%u)", r->return_icmp6 & 255); 896 else 897 printf("%s)", ic6->name); 898 break; 899 } 900 } else 901 printf(" drop"); 902 } 903 if (r->direction == PF_IN) 904 printf(" in"); 905 else if (r->direction == PF_OUT) 906 printf(" out"); 907 if (r->log) { 908 printf(" log"); 909 if (r->log & ~PF_LOG || r->logif) { 910 int count = 0; 911 912 printf(" ("); 913 if (r->log & PF_LOG_ALL) 914 printf("%sall", count++ ? ", " : ""); 915 if (r->log & PF_LOG_SOCKET_LOOKUP) 916 printf("%suser", count++ ? ", " : ""); 917 if (r->logif) 918 printf("%sto pflog%u", count++ ? ", " : "", 919 r->logif); 920 printf(")"); 921 } 922 } 923 if (r->quick) 924 printf(" quick"); 925 if (r->ifname[0]) { 926 if (r->ifnot) 927 printf(" on ! %s", r->ifname); 928 else 929 printf(" on %s", r->ifname); 930 } 931 if (r->rt) { 932 if (r->rt == PF_ROUTETO) 933 printf(" route-to"); 934 else if (r->rt == PF_REPLYTO) 935 printf(" reply-to"); 936 else if (r->rt == PF_DUPTO) 937 printf(" dup-to"); 938 printf(" "); 939 print_pool(&r->rpool, 0, 0, r->af, PF_PASS); 940 } 941 if (r->af) { 942 if (r->af == AF_INET) 943 printf(" inet"); 944 else 945 printf(" inet6"); 946 } 947 if (r->proto) { 948 const char *protoname; 949 950 if ((protoname = pfctl_proto2name(r->proto)) != NULL) 951 printf(" proto %s", protoname); 952 else 953 printf(" proto %u", r->proto); 954 } 955 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 956 verbose, numeric); 957 if (r->uid.op) 958 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 959 UID_MAX); 960 if (r->gid.op) 961 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 962 GID_MAX); 963 if (r->flags || r->flagset) { 964 printf(" flags "); 965 print_flags(r->flags); 966 printf("/"); 967 print_flags(r->flagset); 968 } else if ((r->action == PF_PASS || r->action == PF_MATCH) && 969 (!r->proto || r->proto == IPPROTO_TCP) && 970 !(r->rule_flag & PFRULE_FRAGMENT) && 971 !anchor_call[0] && r->keep_state) 972 printf(" flags any"); 973 if (r->type) { 974 const struct icmptypeent *it; 975 976 it = geticmptypebynumber(r->type-1, r->af); 977 if (r->af != AF_INET6) 978 printf(" icmp-type"); 979 else 980 printf(" icmp6-type"); 981 if (it != NULL) 982 printf(" %s", it->name); 983 else 984 printf(" %u", r->type-1); 985 if (r->code) { 986 const struct icmpcodeent *ic; 987 988 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 989 if (ic != NULL) 990 printf(" code %s", ic->name); 991 else 992 printf(" code %u", r->code-1); 993 } 994 } 995 if (r->tos) 996 printf(" tos 0x%2.2x", r->tos); 997 if (r->prio) 998 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio); 999 if (r->scrub_flags & PFSTATE_SETMASK) { 1000 char *comma = ""; 1001 printf(" set ("); 1002 if (r->scrub_flags & PFSTATE_SETPRIO) { 1003 if (r->set_prio[0] == r->set_prio[1]) 1004 printf("%s prio %u", comma, r->set_prio[0]); 1005 else 1006 printf("%s prio(%u, %u)", comma, r->set_prio[0], 1007 r->set_prio[1]); 1008 comma = ","; 1009 } 1010 if (r->scrub_flags & PFSTATE_SETTOS) { 1011 printf("%s tos 0x%2.2x", comma, r->set_tos); 1012 comma = ","; 1013 } 1014 printf(" )"); 1015 } 1016 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 1017 printf(" no state"); 1018 else if (r->keep_state == PF_STATE_NORMAL) 1019 printf(" keep state"); 1020 else if (r->keep_state == PF_STATE_MODULATE) 1021 printf(" modulate state"); 1022 else if (r->keep_state == PF_STATE_SYNPROXY) 1023 printf(" synproxy state"); 1024 if (r->prob) { 1025 char buf[20]; 1026 1027 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 1028 for (i = strlen(buf)-1; i > 0; i--) { 1029 if (buf[i] == '0') 1030 buf[i] = '\0'; 1031 else { 1032 if (buf[i] == '.') 1033 buf[i] = '\0'; 1034 break; 1035 } 1036 } 1037 printf(" probability %s%%", buf); 1038 } 1039 opts = 0; 1040 if (r->max_states || r->max_src_nodes || r->max_src_states) 1041 opts = 1; 1042 if (r->rule_flag & PFRULE_NOSYNC) 1043 opts = 1; 1044 if (r->rule_flag & PFRULE_SRCTRACK) 1045 opts = 1; 1046 if (r->rule_flag & PFRULE_IFBOUND) 1047 opts = 1; 1048 if (r->rule_flag & PFRULE_STATESLOPPY) 1049 opts = 1; 1050 for (i = 0; !opts && i < PFTM_MAX; ++i) 1051 if (r->timeout[i]) 1052 opts = 1; 1053 if (opts) { 1054 printf(" ("); 1055 if (r->max_states) { 1056 printf("max %u", r->max_states); 1057 opts = 0; 1058 } 1059 if (r->rule_flag & PFRULE_NOSYNC) { 1060 if (!opts) 1061 printf(", "); 1062 printf("no-sync"); 1063 opts = 0; 1064 } 1065 if (r->rule_flag & PFRULE_SRCTRACK) { 1066 if (!opts) 1067 printf(", "); 1068 printf("source-track"); 1069 if (r->rule_flag & PFRULE_RULESRCTRACK) 1070 printf(" rule"); 1071 else 1072 printf(" global"); 1073 opts = 0; 1074 } 1075 if (r->max_src_states) { 1076 if (!opts) 1077 printf(", "); 1078 printf("max-src-states %u", r->max_src_states); 1079 opts = 0; 1080 } 1081 if (r->max_src_conn) { 1082 if (!opts) 1083 printf(", "); 1084 printf("max-src-conn %u", r->max_src_conn); 1085 opts = 0; 1086 } 1087 if (r->max_src_conn_rate.limit) { 1088 if (!opts) 1089 printf(", "); 1090 printf("max-src-conn-rate %u/%u", 1091 r->max_src_conn_rate.limit, 1092 r->max_src_conn_rate.seconds); 1093 opts = 0; 1094 } 1095 if (r->max_src_nodes) { 1096 if (!opts) 1097 printf(", "); 1098 printf("max-src-nodes %u", r->max_src_nodes); 1099 opts = 0; 1100 } 1101 if (r->overload_tblname[0]) { 1102 if (!opts) 1103 printf(", "); 1104 printf("overload <%s>", r->overload_tblname); 1105 if (r->flush) 1106 printf(" flush"); 1107 if (r->flush & PF_FLUSH_GLOBAL) 1108 printf(" global"); 1109 } 1110 if (r->rule_flag & PFRULE_IFBOUND) { 1111 if (!opts) 1112 printf(", "); 1113 printf("if-bound"); 1114 opts = 0; 1115 } 1116 if (r->rule_flag & PFRULE_STATESLOPPY) { 1117 if (!opts) 1118 printf(", "); 1119 printf("sloppy"); 1120 opts = 0; 1121 } 1122 for (i = 0; i < PFTM_MAX; ++i) 1123 if (r->timeout[i]) { 1124 int j; 1125 1126 if (!opts) 1127 printf(", "); 1128 opts = 0; 1129 for (j = 0; pf_timeouts[j].name != NULL; 1130 ++j) 1131 if (pf_timeouts[j].timeout == i) 1132 break; 1133 printf("%s %u", pf_timeouts[j].name == NULL ? 1134 "inv.timeout" : pf_timeouts[j].name, 1135 r->timeout[i]); 1136 } 1137 printf(")"); 1138 } 1139 if (r->allow_opts) 1140 printf(" allow-opts"); 1141 if (r->rule_flag & PFRULE_FRAGMENT) 1142 printf(" fragment"); 1143 if (r->action == PF_SCRUB) { 1144 /* Scrub flags for old-style scrub. */ 1145 if (r->rule_flag & PFRULE_NODF) 1146 printf(" no-df"); 1147 if (r->rule_flag & PFRULE_RANDOMID) 1148 printf(" random-id"); 1149 if (r->min_ttl) 1150 printf(" min-ttl %d", r->min_ttl); 1151 if (r->max_mss) 1152 printf(" max-mss %d", r->max_mss); 1153 if (r->rule_flag & PFRULE_SET_TOS) 1154 printf(" set-tos 0x%2.2x", r->set_tos); 1155 if (r->rule_flag & PFRULE_REASSEMBLE_TCP) 1156 printf(" reassemble tcp"); 1157 /* The PFRULE_FRAGMENT_NOREASS is set on all rules by default! */ 1158 printf(" fragment %sreassemble", 1159 r->rule_flag & PFRULE_FRAGMENT_NOREASS ? "no " : ""); 1160 } else if (r->scrub_flags & PFSTATE_SCRUBMASK || r->min_ttl || r->max_mss) { 1161 /* Scrub actions on normal rules. */ 1162 printf(" scrub("); 1163 if (r->scrub_flags & PFSTATE_NODF) 1164 printf(" no-df"); 1165 if (r->scrub_flags & PFSTATE_RANDOMID) 1166 printf(" random-id"); 1167 if (r->min_ttl) 1168 printf(" min-ttl %d", r->min_ttl); 1169 if (r->scrub_flags & PFSTATE_SETTOS) 1170 printf(" set-tos 0x%2.2x", r->set_tos); 1171 if (r->scrub_flags & PFSTATE_SCRUB_TCP) 1172 printf(" reassemble tcp"); 1173 if (r->max_mss) 1174 printf(" max-mss %d", r->max_mss); 1175 printf(")"); 1176 } 1177 i = 0; 1178 while (r->label[i][0]) 1179 printf(" label \"%s\"", r->label[i++]); 1180 if (r->ridentifier) 1181 printf(" ridentifier %u", r->ridentifier); 1182 /* Only dnrpipe as we might do (0, 42) to only queue return traffic. */ 1183 if (r->dnrpipe) 1184 printf(" %s(%d, %d)", 1185 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1186 r->dnpipe, r->dnrpipe); 1187 else if (r->dnpipe) 1188 printf(" %s %d", 1189 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1190 r->dnpipe); 1191 if (r->qname[0] && r->pqname[0]) 1192 printf(" queue(%s, %s)", r->qname, r->pqname); 1193 else if (r->qname[0]) 1194 printf(" queue %s", r->qname); 1195 if (r->tagname[0]) 1196 printf(" tag %s", r->tagname); 1197 if (r->match_tagname[0]) { 1198 if (r->match_tag_not) 1199 printf(" !"); 1200 printf(" tagged %s", r->match_tagname); 1201 } 1202 if (r->rtableid != -1) 1203 printf(" rtable %u", r->rtableid); 1204 if (r->divert.port) { 1205 #ifdef __FreeBSD__ 1206 printf(" divert-to %u", ntohs(r->divert.port)); 1207 #else 1208 if (PF_AZERO(&r->divert.addr, r->af)) { 1209 printf(" divert-reply"); 1210 } else { 1211 /* XXX cut&paste from print_addr */ 1212 char buf[48]; 1213 1214 printf(" divert-to "); 1215 if (inet_ntop(r->af, &r->divert.addr, buf, 1216 sizeof(buf)) == NULL) 1217 printf("?"); 1218 else 1219 printf("%s", buf); 1220 printf(" port %u", ntohs(r->divert.port)); 1221 } 1222 #endif 1223 } 1224 if (!anchor_call[0] && (r->action == PF_NAT || 1225 r->action == PF_BINAT || r->action == PF_RDR)) { 1226 printf(" -> "); 1227 print_pool(&r->rpool, r->rpool.proxy_port[0], 1228 r->rpool.proxy_port[1], r->af, r->action); 1229 } 1230 } 1231 1232 void 1233 print_tabledef(const char *name, int flags, int addrs, 1234 struct node_tinithead *nodes) 1235 { 1236 struct node_tinit *ti, *nti; 1237 struct node_host *h; 1238 1239 printf("table <%s>", name); 1240 if (flags & PFR_TFLAG_CONST) 1241 printf(" const"); 1242 if (flags & PFR_TFLAG_PERSIST) 1243 printf(" persist"); 1244 if (flags & PFR_TFLAG_COUNTERS) 1245 printf(" counters"); 1246 SIMPLEQ_FOREACH(ti, nodes, entries) { 1247 if (ti->file) { 1248 printf(" file \"%s\"", ti->file); 1249 continue; 1250 } 1251 printf(" {"); 1252 for (;;) { 1253 for (h = ti->host; h != NULL; h = h->next) { 1254 printf(h->not ? " !" : " "); 1255 print_addr(&h->addr, h->af, 0); 1256 } 1257 nti = SIMPLEQ_NEXT(ti, entries); 1258 if (nti != NULL && nti->file == NULL) 1259 ti = nti; /* merge lists */ 1260 else 1261 break; 1262 } 1263 printf(" }"); 1264 } 1265 if (addrs && SIMPLEQ_EMPTY(nodes)) 1266 printf(" { }"); 1267 printf("\n"); 1268 } 1269 1270 int 1271 parse_flags(char *s) 1272 { 1273 char *p, *q; 1274 u_int8_t f = 0; 1275 1276 for (p = s; *p; p++) { 1277 if ((q = strchr(tcpflags, *p)) == NULL) 1278 return -1; 1279 else 1280 f |= 1 << (q - tcpflags); 1281 } 1282 return (f ? f : PF_TH_ALL); 1283 } 1284 1285 void 1286 set_ipmask(struct node_host *h, u_int8_t b) 1287 { 1288 struct pf_addr *m, *n; 1289 int i, j = 0; 1290 1291 m = &h->addr.v.a.mask; 1292 memset(m, 0, sizeof(*m)); 1293 1294 while (b >= 32) { 1295 m->addr32[j++] = 0xffffffff; 1296 b -= 32; 1297 } 1298 for (i = 31; i > 31-b; --i) 1299 m->addr32[j] |= (1 << i); 1300 if (b) 1301 m->addr32[j] = htonl(m->addr32[j]); 1302 1303 /* Mask off bits of the address that will never be used. */ 1304 n = &h->addr.v.a.addr; 1305 if (h->addr.type == PF_ADDR_ADDRMASK) 1306 for (i = 0; i < 4; i++) 1307 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1308 } 1309 1310 int 1311 check_netmask(struct node_host *h, sa_family_t af) 1312 { 1313 struct node_host *n = NULL; 1314 struct pf_addr *m; 1315 1316 for (n = h; n != NULL; n = n->next) { 1317 if (h->addr.type == PF_ADDR_TABLE) 1318 continue; 1319 m = &h->addr.v.a.mask; 1320 /* netmasks > 32 bit are invalid on v4 */ 1321 if (af == AF_INET && 1322 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1323 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1324 unmask(m, AF_INET6)); 1325 return (1); 1326 } 1327 } 1328 return (0); 1329 } 1330 1331 struct node_host * 1332 gen_dynnode(struct node_host *h, sa_family_t af) 1333 { 1334 struct node_host *n; 1335 struct pf_addr *m; 1336 1337 if (h->addr.type != PF_ADDR_DYNIFTL) 1338 return (NULL); 1339 1340 if ((n = calloc(1, sizeof(*n))) == NULL) 1341 return (NULL); 1342 bcopy(h, n, sizeof(*n)); 1343 n->ifname = NULL; 1344 n->next = NULL; 1345 n->tail = NULL; 1346 1347 /* fix up netmask */ 1348 m = &n->addr.v.a.mask; 1349 if (af == AF_INET && unmask(m, AF_INET6) > 32) 1350 set_ipmask(n, 32); 1351 1352 return (n); 1353 } 1354 1355 /* interface lookup routines */ 1356 1357 static struct node_host *iftab; 1358 1359 /* 1360 * Retrieve the list of groups this interface is a member of and make sure 1361 * each group is in the group map. 1362 */ 1363 static void 1364 ifa_add_groups_to_map(char *ifa_name) 1365 { 1366 int s, len; 1367 struct ifgroupreq ifgr; 1368 struct ifg_req *ifg; 1369 1370 s = get_query_socket(); 1371 1372 /* Get size of group list for this interface */ 1373 memset(&ifgr, 0, sizeof(ifgr)); 1374 strlcpy(ifgr.ifgr_name, ifa_name, IFNAMSIZ); 1375 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1376 err(1, "SIOCGIFGROUP"); 1377 1378 /* Retrieve group list for this interface */ 1379 len = ifgr.ifgr_len; 1380 ifgr.ifgr_groups = 1381 (struct ifg_req *)calloc(len / sizeof(struct ifg_req), 1382 sizeof(struct ifg_req)); 1383 if (ifgr.ifgr_groups == NULL) 1384 err(1, "calloc"); 1385 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1386 err(1, "SIOCGIFGROUP"); 1387 1388 ifg = ifgr.ifgr_groups; 1389 for (; ifg && len >= sizeof(struct ifg_req); ifg++) { 1390 len -= sizeof(struct ifg_req); 1391 if (strcmp(ifg->ifgrq_group, "all")) { 1392 ENTRY item; 1393 ENTRY *ret_item; 1394 int *answer; 1395 1396 item.key = ifg->ifgrq_group; 1397 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) { 1398 struct ifgroupreq ifgr2; 1399 1400 /* Don't know the answer yet */ 1401 if ((answer = malloc(sizeof(int))) == NULL) 1402 err(1, "malloc"); 1403 1404 bzero(&ifgr2, sizeof(ifgr2)); 1405 strlcpy(ifgr2.ifgr_name, ifg->ifgrq_group, 1406 sizeof(ifgr2.ifgr_name)); 1407 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr2) == 0) 1408 *answer = ifgr2.ifgr_len; 1409 else 1410 *answer = 0; 1411 1412 item.key = strdup(ifg->ifgrq_group); 1413 item.data = answer; 1414 if (hsearch_r(item, ENTER, &ret_item, 1415 &isgroup_map) == 0) 1416 err(1, "interface group query response" 1417 " map insert"); 1418 } 1419 } 1420 } 1421 free(ifgr.ifgr_groups); 1422 } 1423 1424 void 1425 ifa_load(void) 1426 { 1427 struct ifaddrs *ifap, *ifa; 1428 struct node_host *n = NULL, *h = NULL; 1429 1430 if (getifaddrs(&ifap) < 0) 1431 err(1, "getifaddrs"); 1432 1433 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1434 if (!(ifa->ifa_addr->sa_family == AF_INET || 1435 ifa->ifa_addr->sa_family == AF_INET6 || 1436 ifa->ifa_addr->sa_family == AF_LINK)) 1437 continue; 1438 n = calloc(1, sizeof(struct node_host)); 1439 if (n == NULL) 1440 err(1, "address: calloc"); 1441 n->af = ifa->ifa_addr->sa_family; 1442 n->ifa_flags = ifa->ifa_flags; 1443 #ifdef __KAME__ 1444 if (n->af == AF_INET6 && 1445 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1446 ifa->ifa_addr)->sin6_addr) && 1447 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1448 0) { 1449 struct sockaddr_in6 *sin6; 1450 1451 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1452 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1453 sin6->sin6_addr.s6_addr[3]; 1454 sin6->sin6_addr.s6_addr[2] = 0; 1455 sin6->sin6_addr.s6_addr[3] = 0; 1456 } 1457 #endif 1458 n->ifindex = 0; 1459 if (n->af == AF_INET) { 1460 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *) 1461 ifa->ifa_addr)->sin_addr.s_addr, 1462 sizeof(struct in_addr)); 1463 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *) 1464 ifa->ifa_netmask)->sin_addr.s_addr, 1465 sizeof(struct in_addr)); 1466 if (ifa->ifa_broadaddr != NULL) 1467 memcpy(&n->bcast, &((struct sockaddr_in *) 1468 ifa->ifa_broadaddr)->sin_addr.s_addr, 1469 sizeof(struct in_addr)); 1470 if (ifa->ifa_dstaddr != NULL) 1471 memcpy(&n->peer, &((struct sockaddr_in *) 1472 ifa->ifa_dstaddr)->sin_addr.s_addr, 1473 sizeof(struct in_addr)); 1474 } else if (n->af == AF_INET6) { 1475 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *) 1476 ifa->ifa_addr)->sin6_addr.s6_addr, 1477 sizeof(struct in6_addr)); 1478 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *) 1479 ifa->ifa_netmask)->sin6_addr.s6_addr, 1480 sizeof(struct in6_addr)); 1481 if (ifa->ifa_broadaddr != NULL) 1482 memcpy(&n->bcast, &((struct sockaddr_in6 *) 1483 ifa->ifa_broadaddr)->sin6_addr.s6_addr, 1484 sizeof(struct in6_addr)); 1485 if (ifa->ifa_dstaddr != NULL) 1486 memcpy(&n->peer, &((struct sockaddr_in6 *) 1487 ifa->ifa_dstaddr)->sin6_addr.s6_addr, 1488 sizeof(struct in6_addr)); 1489 n->ifindex = ((struct sockaddr_in6 *) 1490 ifa->ifa_addr)->sin6_scope_id; 1491 } else if (n->af == AF_LINK) { 1492 ifa_add_groups_to_map(ifa->ifa_name); 1493 } 1494 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1495 err(1, "ifa_load: strdup"); 1496 n->next = NULL; 1497 n->tail = n; 1498 if (h == NULL) 1499 h = n; 1500 else { 1501 h->tail->next = n; 1502 h->tail = n; 1503 } 1504 } 1505 1506 iftab = h; 1507 freeifaddrs(ifap); 1508 } 1509 1510 static int 1511 get_socket_domain(void) 1512 { 1513 int sdom; 1514 1515 sdom = AF_UNSPEC; 1516 #ifdef WITH_INET6 1517 if (sdom == AF_UNSPEC && feature_present("inet6")) 1518 sdom = AF_INET6; 1519 #endif 1520 #ifdef WITH_INET 1521 if (sdom == AF_UNSPEC && feature_present("inet")) 1522 sdom = AF_INET; 1523 #endif 1524 if (sdom == AF_UNSPEC) 1525 sdom = AF_LINK; 1526 1527 return (sdom); 1528 } 1529 1530 int 1531 get_query_socket(void) 1532 { 1533 static int s = -1; 1534 1535 if (s == -1) { 1536 if ((s = socket(get_socket_domain(), SOCK_DGRAM, 0)) == -1) 1537 err(1, "socket"); 1538 } 1539 1540 return (s); 1541 } 1542 1543 /* 1544 * Returns the response len if the name is a group, otherwise returns 0. 1545 */ 1546 static int 1547 is_a_group(char *name) 1548 { 1549 ENTRY item; 1550 ENTRY *ret_item; 1551 1552 item.key = name; 1553 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) 1554 return (0); 1555 1556 return (*(int *)ret_item->data); 1557 } 1558 1559 struct node_host * 1560 ifa_exists(char *ifa_name) 1561 { 1562 struct node_host *n; 1563 1564 if (iftab == NULL) 1565 ifa_load(); 1566 1567 /* check whether this is a group */ 1568 if (is_a_group(ifa_name)) { 1569 /* fake a node_host */ 1570 if ((n = calloc(1, sizeof(*n))) == NULL) 1571 err(1, "calloc"); 1572 if ((n->ifname = strdup(ifa_name)) == NULL) 1573 err(1, "strdup"); 1574 return (n); 1575 } 1576 1577 for (n = iftab; n; n = n->next) { 1578 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1579 return (n); 1580 } 1581 1582 return (NULL); 1583 } 1584 1585 struct node_host * 1586 ifa_grouplookup(char *ifa_name, int flags) 1587 { 1588 struct ifg_req *ifg; 1589 struct ifgroupreq ifgr; 1590 int s, len; 1591 struct node_host *n, *h = NULL; 1592 1593 s = get_query_socket(); 1594 len = is_a_group(ifa_name); 1595 if (len == 0) 1596 return (NULL); 1597 bzero(&ifgr, sizeof(ifgr)); 1598 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1599 ifgr.ifgr_len = len; 1600 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1601 err(1, "calloc"); 1602 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1603 err(1, "SIOCGIFGMEMB"); 1604 1605 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1606 ifg++) { 1607 len -= sizeof(struct ifg_req); 1608 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1609 continue; 1610 if (h == NULL) 1611 h = n; 1612 else { 1613 h->tail->next = n; 1614 h->tail = n->tail; 1615 } 1616 } 1617 free(ifgr.ifgr_groups); 1618 1619 return (h); 1620 } 1621 1622 struct node_host * 1623 ifa_lookup(char *ifa_name, int flags) 1624 { 1625 struct node_host *p = NULL, *h = NULL, *n = NULL; 1626 int got4 = 0, got6 = 0; 1627 const char *last_if = NULL; 1628 1629 /* first load iftab and isgroup_map */ 1630 if (iftab == NULL) 1631 ifa_load(); 1632 1633 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1634 return (h); 1635 1636 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1637 ifa_name = NULL; 1638 1639 for (p = iftab; p; p = p->next) { 1640 if (ifa_skip_if(ifa_name, p)) 1641 continue; 1642 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1643 continue; 1644 if ((flags & PFI_AFLAG_BROADCAST) && 1645 !(p->ifa_flags & IFF_BROADCAST)) 1646 continue; 1647 if ((flags & PFI_AFLAG_PEER) && 1648 !(p->ifa_flags & IFF_POINTOPOINT)) 1649 continue; 1650 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1651 continue; 1652 if (last_if == NULL || strcmp(last_if, p->ifname)) 1653 got4 = got6 = 0; 1654 last_if = p->ifname; 1655 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1656 continue; 1657 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && 1658 IN6_IS_ADDR_LINKLOCAL(&p->addr.v.a.addr.v6)) 1659 continue; 1660 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1661 continue; 1662 if (p->af == AF_INET) 1663 got4 = 1; 1664 else 1665 got6 = 1; 1666 n = calloc(1, sizeof(struct node_host)); 1667 if (n == NULL) 1668 err(1, "address: calloc"); 1669 n->af = p->af; 1670 if (flags & PFI_AFLAG_BROADCAST) 1671 memcpy(&n->addr.v.a.addr, &p->bcast, 1672 sizeof(struct pf_addr)); 1673 else if (flags & PFI_AFLAG_PEER) 1674 memcpy(&n->addr.v.a.addr, &p->peer, 1675 sizeof(struct pf_addr)); 1676 else 1677 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1678 sizeof(struct pf_addr)); 1679 if (flags & PFI_AFLAG_NETWORK) 1680 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af)); 1681 else { 1682 if (n->af == AF_INET) { 1683 if (p->ifa_flags & IFF_LOOPBACK && 1684 p->ifa_flags & IFF_LINK1) 1685 memcpy(&n->addr.v.a.mask, 1686 &p->addr.v.a.mask, 1687 sizeof(struct pf_addr)); 1688 else 1689 set_ipmask(n, 32); 1690 } else 1691 set_ipmask(n, 128); 1692 } 1693 n->ifindex = p->ifindex; 1694 n->ifname = strdup(p->ifname); 1695 1696 n->next = NULL; 1697 n->tail = n; 1698 if (h == NULL) 1699 h = n; 1700 else { 1701 h->tail->next = n; 1702 h->tail = n; 1703 } 1704 } 1705 return (h); 1706 } 1707 1708 int 1709 ifa_skip_if(const char *filter, struct node_host *p) 1710 { 1711 int n; 1712 1713 if (p->af != AF_INET && p->af != AF_INET6) 1714 return (1); 1715 if (filter == NULL || !*filter) 1716 return (0); 1717 if (!strcmp(p->ifname, filter)) 1718 return (0); /* exact match */ 1719 n = strlen(filter); 1720 if (n < 1 || n >= IFNAMSIZ) 1721 return (1); /* sanity check */ 1722 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1723 return (1); /* only do exact match in that case */ 1724 if (strncmp(p->ifname, filter, n)) 1725 return (1); /* prefix doesn't match */ 1726 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1727 } 1728 1729 1730 struct node_host * 1731 host(const char *s) 1732 { 1733 struct node_host *h = NULL; 1734 int mask, v4mask, v6mask, cont = 1; 1735 char *p, *q, *ps; 1736 1737 if ((p = strrchr(s, '/')) != NULL) { 1738 mask = strtol(p+1, &q, 0); 1739 if (!q || *q || mask > 128 || q == (p+1)) { 1740 fprintf(stderr, "invalid netmask '%s'\n", p); 1741 return (NULL); 1742 } 1743 if ((ps = malloc(strlen(s) - strlen(p) + 1)) == NULL) 1744 err(1, "host: malloc"); 1745 strlcpy(ps, s, strlen(s) - strlen(p) + 1); 1746 v4mask = v6mask = mask; 1747 } else { 1748 if ((ps = strdup(s)) == NULL) 1749 err(1, "host: strdup"); 1750 v4mask = 32; 1751 v6mask = 128; 1752 mask = -1; 1753 } 1754 1755 /* IPv4 address? */ 1756 if (cont && (h = host_v4(s, mask)) != NULL) 1757 cont = 0; 1758 1759 /* IPv6 address? */ 1760 if (cont && (h = host_v6(ps, v6mask)) != NULL) 1761 cont = 0; 1762 1763 /* interface with this name exists? */ 1764 /* expensive with thousands of interfaces - prioritze IPv4/6 check */ 1765 if (cont && (h = host_if(ps, mask, &cont)) != NULL) 1766 cont = 0; 1767 1768 /* dns lookup */ 1769 if (cont && (h = host_dns(ps, v4mask, v6mask)) != NULL) 1770 cont = 0; 1771 free(ps); 1772 1773 if (h == NULL || cont == 1) { 1774 fprintf(stderr, "no IP address found for %s\n", s); 1775 return (NULL); 1776 } 1777 return (h); 1778 } 1779 1780 struct node_host * 1781 host_if(const char *s, int mask, int *cont) 1782 { 1783 struct node_host *n, *h = NULL; 1784 char *p, *ps; 1785 int flags = 0; 1786 1787 if ((ps = strdup(s)) == NULL) 1788 err(1, "host_if: strdup"); 1789 while ((p = strrchr(ps, ':')) != NULL) { 1790 if (!strcmp(p+1, "network")) 1791 flags |= PFI_AFLAG_NETWORK; 1792 else if (!strcmp(p+1, "broadcast")) 1793 flags |= PFI_AFLAG_BROADCAST; 1794 else if (!strcmp(p+1, "peer")) 1795 flags |= PFI_AFLAG_PEER; 1796 else if (!strcmp(p+1, "0")) 1797 flags |= PFI_AFLAG_NOALIAS; 1798 else { 1799 free(ps); 1800 return (NULL); 1801 } 1802 *p = '\0'; 1803 *cont = 0; 1804 } 1805 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1806 fprintf(stderr, "illegal combination of interface modifiers\n"); 1807 free(ps); 1808 return (NULL); 1809 } 1810 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1811 fprintf(stderr, "network or broadcast lookup, but " 1812 "extra netmask given\n"); 1813 free(ps); 1814 return (NULL); 1815 } 1816 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1817 /* interface with this name exists */ 1818 h = ifa_lookup(ps, flags); 1819 for (n = h; n != NULL && mask > -1; n = n->next) 1820 set_ipmask(n, mask); 1821 } 1822 1823 free(ps); 1824 return (h); 1825 } 1826 1827 struct node_host * 1828 host_v4(const char *s, int mask) 1829 { 1830 struct node_host *h = NULL; 1831 struct in_addr ina; 1832 int bits = 32; 1833 1834 memset(&ina, 0, sizeof(struct in_addr)); 1835 if (strrchr(s, '/') != NULL) { 1836 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1) 1837 return (NULL); 1838 } else { 1839 if (inet_pton(AF_INET, s, &ina) != 1) 1840 return (NULL); 1841 } 1842 1843 h = calloc(1, sizeof(struct node_host)); 1844 if (h == NULL) 1845 err(1, "address: calloc"); 1846 h->ifname = NULL; 1847 h->af = AF_INET; 1848 h->addr.v.a.addr.addr32[0] = ina.s_addr; 1849 set_ipmask(h, bits); 1850 h->next = NULL; 1851 h->tail = h; 1852 1853 return (h); 1854 } 1855 1856 struct node_host * 1857 host_v6(const char *s, int mask) 1858 { 1859 struct addrinfo hints, *res; 1860 struct node_host *h = NULL; 1861 1862 memset(&hints, 0, sizeof(hints)); 1863 hints.ai_family = AF_INET6; 1864 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1865 hints.ai_flags = AI_NUMERICHOST; 1866 if (getaddrinfo(s, "0", &hints, &res) == 0) { 1867 h = calloc(1, sizeof(struct node_host)); 1868 if (h == NULL) 1869 err(1, "address: calloc"); 1870 h->ifname = NULL; 1871 h->af = AF_INET6; 1872 memcpy(&h->addr.v.a.addr, 1873 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 1874 sizeof(h->addr.v.a.addr)); 1875 h->ifindex = 1876 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1877 set_ipmask(h, mask); 1878 freeaddrinfo(res); 1879 h->next = NULL; 1880 h->tail = h; 1881 } 1882 1883 return (h); 1884 } 1885 1886 struct node_host * 1887 host_dns(const char *s, int v4mask, int v6mask) 1888 { 1889 struct addrinfo hints, *res0, *res; 1890 struct node_host *n, *h = NULL; 1891 int error, noalias = 0; 1892 int got4 = 0, got6 = 0; 1893 char *p, *ps; 1894 1895 if ((ps = strdup(s)) == NULL) 1896 err(1, "host_dns: strdup"); 1897 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1898 noalias = 1; 1899 *p = '\0'; 1900 } 1901 memset(&hints, 0, sizeof(hints)); 1902 hints.ai_family = PF_UNSPEC; 1903 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1904 error = getaddrinfo(ps, NULL, &hints, &res0); 1905 if (error) { 1906 free(ps); 1907 return (h); 1908 } 1909 1910 for (res = res0; res; res = res->ai_next) { 1911 if (res->ai_family != AF_INET && 1912 res->ai_family != AF_INET6) 1913 continue; 1914 if (noalias) { 1915 if (res->ai_family == AF_INET) { 1916 if (got4) 1917 continue; 1918 got4 = 1; 1919 } else { 1920 if (got6) 1921 continue; 1922 got6 = 1; 1923 } 1924 } 1925 n = calloc(1, sizeof(struct node_host)); 1926 if (n == NULL) 1927 err(1, "host_dns: calloc"); 1928 n->ifname = NULL; 1929 n->af = res->ai_family; 1930 if (res->ai_family == AF_INET) { 1931 memcpy(&n->addr.v.a.addr, 1932 &((struct sockaddr_in *) 1933 res->ai_addr)->sin_addr.s_addr, 1934 sizeof(struct in_addr)); 1935 set_ipmask(n, v4mask); 1936 } else { 1937 memcpy(&n->addr.v.a.addr, 1938 &((struct sockaddr_in6 *) 1939 res->ai_addr)->sin6_addr.s6_addr, 1940 sizeof(struct in6_addr)); 1941 n->ifindex = 1942 ((struct sockaddr_in6 *) 1943 res->ai_addr)->sin6_scope_id; 1944 set_ipmask(n, v6mask); 1945 } 1946 n->next = NULL; 1947 n->tail = n; 1948 if (h == NULL) 1949 h = n; 1950 else { 1951 h->tail->next = n; 1952 h->tail = n; 1953 } 1954 } 1955 freeaddrinfo(res0); 1956 free(ps); 1957 1958 return (h); 1959 } 1960 1961 /* 1962 * convert a hostname to a list of addresses and put them in the given buffer. 1963 * test: 1964 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1965 */ 1966 int 1967 append_addr(struct pfr_buffer *b, char *s, int test) 1968 { 1969 char *r; 1970 struct node_host *h, *n; 1971 int rv, not = 0; 1972 1973 for (r = s; *r == '!'; r++) 1974 not = !not; 1975 if ((n = host(r)) == NULL) { 1976 errno = 0; 1977 return (-1); 1978 } 1979 rv = append_addr_host(b, n, test, not); 1980 do { 1981 h = n; 1982 n = n->next; 1983 free(h); 1984 } while (n != NULL); 1985 return (rv); 1986 } 1987 1988 /* 1989 * same as previous function, but with a pre-parsed input and the ability 1990 * to "negate" the result. Does not free the node_host list. 1991 * not: 1992 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1993 */ 1994 int 1995 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1996 { 1997 int bits; 1998 struct pfr_addr addr; 1999 2000 do { 2001 bzero(&addr, sizeof(addr)); 2002 addr.pfra_not = n->not ^ not; 2003 addr.pfra_af = n->af; 2004 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af); 2005 switch (n->af) { 2006 case AF_INET: 2007 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 2008 bits = 32; 2009 break; 2010 case AF_INET6: 2011 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 2012 sizeof(struct in6_addr)); 2013 bits = 128; 2014 break; 2015 default: 2016 errno = EINVAL; 2017 return (-1); 2018 } 2019 if ((test && (not || addr.pfra_net != bits)) || 2020 addr.pfra_net > bits) { 2021 errno = EINVAL; 2022 return (-1); 2023 } 2024 if (pfr_buf_add(b, &addr)) 2025 return (-1); 2026 } while ((n = n->next) != NULL); 2027 2028 return (0); 2029 } 2030 2031 int 2032 pfctl_add_trans(struct pfr_buffer *buf, int rs_num, const char *anchor) 2033 { 2034 struct pfioc_trans_e trans; 2035 2036 bzero(&trans, sizeof(trans)); 2037 trans.rs_num = rs_num; 2038 if (strlcpy(trans.anchor, anchor, 2039 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 2040 errx(1, "pfctl_add_trans: strlcpy"); 2041 2042 return pfr_buf_add(buf, &trans); 2043 } 2044 2045 u_int32_t 2046 pfctl_get_ticket(struct pfr_buffer *buf, int rs_num, const char *anchor) 2047 { 2048 struct pfioc_trans_e *p; 2049 2050 PFRB_FOREACH(p, buf) 2051 if (rs_num == p->rs_num && !strcmp(anchor, p->anchor)) 2052 return (p->ticket); 2053 errx(1, "pfctl_get_ticket: assertion failed"); 2054 } 2055 2056 int 2057 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 2058 { 2059 struct pfioc_trans trans; 2060 2061 bzero(&trans, sizeof(trans)); 2062 trans.size = buf->pfrb_size - from; 2063 trans.esize = sizeof(struct pfioc_trans_e); 2064 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 2065 return ioctl(dev, cmd, &trans); 2066 } 2067