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", 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 static void 695 print_eth_addr(const struct pfctl_eth_addr *a) 696 { 697 int i, masklen = ETHER_ADDR_LEN * 8; 698 bool seen_unset = false; 699 700 for (i = 0; i < ETHER_ADDR_LEN; i++) { 701 if (a->addr[i] != 0) 702 break; 703 } 704 705 /* Unset, so don't print anything. */ 706 if (i == ETHER_ADDR_LEN) 707 return; 708 709 printf("%s%02x:%02x:%02x:%02x:%02x:%02x", a->neg ? "! " : "", 710 a->addr[0], a->addr[1], a->addr[2], a->addr[3], a->addr[4], 711 a->addr[5]); 712 713 for (i = 0; i < (ETHER_ADDR_LEN * 8); i++) { 714 bool isset = a->mask[i / 8] & (1 << i % 8); 715 716 if (! seen_unset) { 717 if (isset) 718 continue; 719 seen_unset = true; 720 masklen = i; 721 } else { 722 /* Not actually a continuous mask, so print the whole 723 * thing. */ 724 if (isset) 725 break; 726 continue; 727 } 728 } 729 730 if (masklen == (ETHER_ADDR_LEN * 8)) 731 return; 732 733 if (i == (ETHER_ADDR_LEN * 8)) { 734 printf("/%d", masklen); 735 return; 736 } 737 738 printf("&%02x:%02x:%02x:%02x:%02x:%02x", 739 a->mask[0], a->mask[1], a->mask[2], a->mask[3], a->mask[4], 740 a->mask[5]); 741 } 742 743 void 744 print_eth_rule(struct pfctl_eth_rule *r, const char *anchor_call, 745 int rule_numbers) 746 { 747 static const char *actiontypes[] = { "pass", "block" }; 748 749 if (rule_numbers) 750 printf("@%u ", r->nr); 751 752 printf("ether "); 753 if (anchor_call[0]) { 754 if (anchor_call[0] == '_') { 755 printf("anchor"); 756 } else 757 printf("anchor \"%s\"", anchor_call); 758 } else { 759 printf("%s", actiontypes[r->action]); 760 } 761 if (r->direction == PF_IN) 762 printf(" in"); 763 else if (r->direction == PF_OUT) 764 printf(" out"); 765 766 if (r->quick) 767 printf(" quick"); 768 if (r->ifname[0]) { 769 if (r->ifnot) 770 printf(" on ! %s", r->ifname); 771 else 772 printf(" on %s", r->ifname); 773 } 774 if (r->proto) 775 printf(" proto 0x%04x", r->proto); 776 777 if (r->src.isset) { 778 printf(" from "); 779 print_eth_addr(&r->src); 780 } 781 if (r->dst.isset) { 782 printf(" to "); 783 print_eth_addr(&r->dst); 784 } 785 786 if (r->qname[0]) 787 printf(" queue %s", r->qname); 788 if (r->tagname[0]) 789 printf(" tag %s", r->tagname); 790 if (r->dnpipe) 791 printf(" %s %d", 792 r->dnflags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 793 r->dnpipe); 794 } 795 796 void 797 print_rule(struct pfctl_rule *r, const char *anchor_call, int verbose, int numeric) 798 { 799 static const char *actiontypes[] = { "pass", "block", "scrub", 800 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr" }; 801 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 802 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 803 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 804 int i, opts; 805 806 if (verbose) 807 printf("@%d ", r->nr); 808 if (r->action == PF_MATCH) 809 printf("match"); 810 else if (r->action > PF_NORDR) 811 printf("action(%d)", r->action); 812 else if (anchor_call[0]) { 813 if (anchor_call[0] == '_') { 814 printf("%s", anchortypes[r->action]); 815 } else 816 printf("%s \"%s\"", anchortypes[r->action], 817 anchor_call); 818 } else { 819 printf("%s", actiontypes[r->action]); 820 if (r->natpass) 821 printf(" pass"); 822 } 823 if (r->action == PF_DROP) { 824 if (r->rule_flag & PFRULE_RETURN) 825 printf(" return"); 826 else if (r->rule_flag & PFRULE_RETURNRST) { 827 if (!r->return_ttl) 828 printf(" return-rst"); 829 else 830 printf(" return-rst(ttl %d)", r->return_ttl); 831 } else if (r->rule_flag & PFRULE_RETURNICMP) { 832 const struct icmpcodeent *ic, *ic6; 833 834 ic = geticmpcodebynumber(r->return_icmp >> 8, 835 r->return_icmp & 255, AF_INET); 836 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 837 r->return_icmp6 & 255, AF_INET6); 838 839 switch (r->af) { 840 case AF_INET: 841 printf(" return-icmp"); 842 if (ic == NULL) 843 printf("(%u)", r->return_icmp & 255); 844 else 845 printf("(%s)", ic->name); 846 break; 847 case AF_INET6: 848 printf(" return-icmp6"); 849 if (ic6 == NULL) 850 printf("(%u)", r->return_icmp6 & 255); 851 else 852 printf("(%s)", ic6->name); 853 break; 854 default: 855 printf(" return-icmp"); 856 if (ic == NULL) 857 printf("(%u, ", r->return_icmp & 255); 858 else 859 printf("(%s, ", ic->name); 860 if (ic6 == NULL) 861 printf("%u)", r->return_icmp6 & 255); 862 else 863 printf("%s)", ic6->name); 864 break; 865 } 866 } else 867 printf(" drop"); 868 } 869 if (r->direction == PF_IN) 870 printf(" in"); 871 else if (r->direction == PF_OUT) 872 printf(" out"); 873 if (r->log) { 874 printf(" log"); 875 if (r->log & ~PF_LOG || r->logif) { 876 int count = 0; 877 878 printf(" ("); 879 if (r->log & PF_LOG_ALL) 880 printf("%sall", count++ ? ", " : ""); 881 if (r->log & PF_LOG_SOCKET_LOOKUP) 882 printf("%suser", count++ ? ", " : ""); 883 if (r->logif) 884 printf("%sto pflog%u", count++ ? ", " : "", 885 r->logif); 886 printf(")"); 887 } 888 } 889 if (r->quick) 890 printf(" quick"); 891 if (r->ifname[0]) { 892 if (r->ifnot) 893 printf(" on ! %s", r->ifname); 894 else 895 printf(" on %s", r->ifname); 896 } 897 if (r->rt) { 898 if (r->rt == PF_ROUTETO) 899 printf(" route-to"); 900 else if (r->rt == PF_REPLYTO) 901 printf(" reply-to"); 902 else if (r->rt == PF_DUPTO) 903 printf(" dup-to"); 904 printf(" "); 905 print_pool(&r->rpool, 0, 0, r->af, PF_PASS); 906 } 907 if (r->af) { 908 if (r->af == AF_INET) 909 printf(" inet"); 910 else 911 printf(" inet6"); 912 } 913 if (r->proto) { 914 const char *protoname; 915 916 if ((protoname = pfctl_proto2name(r->proto)) != NULL) 917 printf(" proto %s", protoname); 918 else 919 printf(" proto %u", r->proto); 920 } 921 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 922 verbose, numeric); 923 if (r->uid.op) 924 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 925 UID_MAX); 926 if (r->gid.op) 927 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 928 GID_MAX); 929 if (r->flags || r->flagset) { 930 printf(" flags "); 931 print_flags(r->flags); 932 printf("/"); 933 print_flags(r->flagset); 934 } else if (r->action == PF_PASS && 935 (!r->proto || r->proto == IPPROTO_TCP) && 936 !(r->rule_flag & PFRULE_FRAGMENT) && 937 !anchor_call[0] && r->keep_state) 938 printf(" flags any"); 939 if (r->type) { 940 const struct icmptypeent *it; 941 942 it = geticmptypebynumber(r->type-1, r->af); 943 if (r->af != AF_INET6) 944 printf(" icmp-type"); 945 else 946 printf(" icmp6-type"); 947 if (it != NULL) 948 printf(" %s", it->name); 949 else 950 printf(" %u", r->type-1); 951 if (r->code) { 952 const struct icmpcodeent *ic; 953 954 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 955 if (ic != NULL) 956 printf(" code %s", ic->name); 957 else 958 printf(" code %u", r->code-1); 959 } 960 } 961 if (r->tos) 962 printf(" tos 0x%2.2x", r->tos); 963 if (r->prio) 964 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio); 965 if (r->scrub_flags & PFSTATE_SETMASK) { 966 char *comma = ""; 967 printf(" set ("); 968 if (r->scrub_flags & PFSTATE_SETPRIO) { 969 if (r->set_prio[0] == r->set_prio[1]) 970 printf("%s prio %u", comma, r->set_prio[0]); 971 else 972 printf("%s prio(%u, %u)", comma, r->set_prio[0], 973 r->set_prio[1]); 974 comma = ","; 975 } 976 printf(" )"); 977 } 978 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 979 printf(" no state"); 980 else if (r->keep_state == PF_STATE_NORMAL) 981 printf(" keep state"); 982 else if (r->keep_state == PF_STATE_MODULATE) 983 printf(" modulate state"); 984 else if (r->keep_state == PF_STATE_SYNPROXY) 985 printf(" synproxy state"); 986 if (r->prob) { 987 char buf[20]; 988 989 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 990 for (i = strlen(buf)-1; i > 0; i--) { 991 if (buf[i] == '0') 992 buf[i] = '\0'; 993 else { 994 if (buf[i] == '.') 995 buf[i] = '\0'; 996 break; 997 } 998 } 999 printf(" probability %s%%", buf); 1000 } 1001 opts = 0; 1002 if (r->max_states || r->max_src_nodes || r->max_src_states) 1003 opts = 1; 1004 if (r->rule_flag & PFRULE_NOSYNC) 1005 opts = 1; 1006 if (r->rule_flag & PFRULE_SRCTRACK) 1007 opts = 1; 1008 if (r->rule_flag & PFRULE_IFBOUND) 1009 opts = 1; 1010 if (r->rule_flag & PFRULE_STATESLOPPY) 1011 opts = 1; 1012 for (i = 0; !opts && i < PFTM_MAX; ++i) 1013 if (r->timeout[i]) 1014 opts = 1; 1015 if (opts) { 1016 printf(" ("); 1017 if (r->max_states) { 1018 printf("max %u", r->max_states); 1019 opts = 0; 1020 } 1021 if (r->rule_flag & PFRULE_NOSYNC) { 1022 if (!opts) 1023 printf(", "); 1024 printf("no-sync"); 1025 opts = 0; 1026 } 1027 if (r->rule_flag & PFRULE_SRCTRACK) { 1028 if (!opts) 1029 printf(", "); 1030 printf("source-track"); 1031 if (r->rule_flag & PFRULE_RULESRCTRACK) 1032 printf(" rule"); 1033 else 1034 printf(" global"); 1035 opts = 0; 1036 } 1037 if (r->max_src_states) { 1038 if (!opts) 1039 printf(", "); 1040 printf("max-src-states %u", r->max_src_states); 1041 opts = 0; 1042 } 1043 if (r->max_src_conn) { 1044 if (!opts) 1045 printf(", "); 1046 printf("max-src-conn %u", r->max_src_conn); 1047 opts = 0; 1048 } 1049 if (r->max_src_conn_rate.limit) { 1050 if (!opts) 1051 printf(", "); 1052 printf("max-src-conn-rate %u/%u", 1053 r->max_src_conn_rate.limit, 1054 r->max_src_conn_rate.seconds); 1055 opts = 0; 1056 } 1057 if (r->max_src_nodes) { 1058 if (!opts) 1059 printf(", "); 1060 printf("max-src-nodes %u", r->max_src_nodes); 1061 opts = 0; 1062 } 1063 if (r->overload_tblname[0]) { 1064 if (!opts) 1065 printf(", "); 1066 printf("overload <%s>", r->overload_tblname); 1067 if (r->flush) 1068 printf(" flush"); 1069 if (r->flush & PF_FLUSH_GLOBAL) 1070 printf(" global"); 1071 } 1072 if (r->rule_flag & PFRULE_IFBOUND) { 1073 if (!opts) 1074 printf(", "); 1075 printf("if-bound"); 1076 opts = 0; 1077 } 1078 if (r->rule_flag & PFRULE_STATESLOPPY) { 1079 if (!opts) 1080 printf(", "); 1081 printf("sloppy"); 1082 opts = 0; 1083 } 1084 for (i = 0; i < PFTM_MAX; ++i) 1085 if (r->timeout[i]) { 1086 int j; 1087 1088 if (!opts) 1089 printf(", "); 1090 opts = 0; 1091 for (j = 0; pf_timeouts[j].name != NULL; 1092 ++j) 1093 if (pf_timeouts[j].timeout == i) 1094 break; 1095 printf("%s %u", pf_timeouts[j].name == NULL ? 1096 "inv.timeout" : pf_timeouts[j].name, 1097 r->timeout[i]); 1098 } 1099 printf(")"); 1100 } 1101 if (r->rule_flag & PFRULE_FRAGMENT) 1102 printf(" fragment"); 1103 if (r->rule_flag & PFRULE_NODF) 1104 printf(" no-df"); 1105 if (r->rule_flag & PFRULE_RANDOMID) 1106 printf(" random-id"); 1107 if (r->min_ttl) 1108 printf(" min-ttl %d", r->min_ttl); 1109 if (r->max_mss) 1110 printf(" max-mss %d", r->max_mss); 1111 if (r->rule_flag & PFRULE_SET_TOS) 1112 printf(" set-tos 0x%2.2x", r->set_tos); 1113 if (r->allow_opts) 1114 printf(" allow-opts"); 1115 if (r->action == PF_SCRUB) { 1116 if (r->rule_flag & PFRULE_REASSEMBLE_TCP) 1117 printf(" reassemble tcp"); 1118 1119 printf(" fragment reassemble"); 1120 } 1121 i = 0; 1122 while (r->label[i][0]) 1123 printf(" label \"%s\"", r->label[i++]); 1124 if (r->ridentifier) 1125 printf(" ridentifier %u", r->ridentifier); 1126 /* Only dnrpipe as we might do (0, 42) to only queue return traffic. */ 1127 if (r->dnrpipe) 1128 printf(" %s(%d, %d)", 1129 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1130 r->dnpipe, r->dnrpipe); 1131 else if (r->dnpipe) 1132 printf(" %s %d", 1133 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1134 r->dnpipe); 1135 if (r->qname[0] && r->pqname[0]) 1136 printf(" queue(%s, %s)", r->qname, r->pqname); 1137 else if (r->qname[0]) 1138 printf(" queue %s", r->qname); 1139 if (r->tagname[0]) 1140 printf(" tag %s", r->tagname); 1141 if (r->match_tagname[0]) { 1142 if (r->match_tag_not) 1143 printf(" !"); 1144 printf(" tagged %s", r->match_tagname); 1145 } 1146 if (r->rtableid != -1) 1147 printf(" rtable %u", r->rtableid); 1148 if (r->divert.port) { 1149 #ifdef __FreeBSD__ 1150 printf(" divert-to %u", ntohs(r->divert.port)); 1151 #else 1152 if (PF_AZERO(&r->divert.addr, r->af)) { 1153 printf(" divert-reply"); 1154 } else { 1155 /* XXX cut&paste from print_addr */ 1156 char buf[48]; 1157 1158 printf(" divert-to "); 1159 if (inet_ntop(r->af, &r->divert.addr, buf, 1160 sizeof(buf)) == NULL) 1161 printf("?"); 1162 else 1163 printf("%s", buf); 1164 printf(" port %u", ntohs(r->divert.port)); 1165 } 1166 #endif 1167 } 1168 if (!anchor_call[0] && (r->action == PF_NAT || 1169 r->action == PF_BINAT || r->action == PF_RDR)) { 1170 printf(" -> "); 1171 print_pool(&r->rpool, r->rpool.proxy_port[0], 1172 r->rpool.proxy_port[1], r->af, r->action); 1173 } 1174 } 1175 1176 void 1177 print_tabledef(const char *name, int flags, int addrs, 1178 struct node_tinithead *nodes) 1179 { 1180 struct node_tinit *ti, *nti; 1181 struct node_host *h; 1182 1183 printf("table <%s>", name); 1184 if (flags & PFR_TFLAG_CONST) 1185 printf(" const"); 1186 if (flags & PFR_TFLAG_PERSIST) 1187 printf(" persist"); 1188 if (flags & PFR_TFLAG_COUNTERS) 1189 printf(" counters"); 1190 SIMPLEQ_FOREACH(ti, nodes, entries) { 1191 if (ti->file) { 1192 printf(" file \"%s\"", ti->file); 1193 continue; 1194 } 1195 printf(" {"); 1196 for (;;) { 1197 for (h = ti->host; h != NULL; h = h->next) { 1198 printf(h->not ? " !" : " "); 1199 print_addr(&h->addr, h->af, 0); 1200 } 1201 nti = SIMPLEQ_NEXT(ti, entries); 1202 if (nti != NULL && nti->file == NULL) 1203 ti = nti; /* merge lists */ 1204 else 1205 break; 1206 } 1207 printf(" }"); 1208 } 1209 if (addrs && SIMPLEQ_EMPTY(nodes)) 1210 printf(" { }"); 1211 printf("\n"); 1212 } 1213 1214 int 1215 parse_flags(char *s) 1216 { 1217 char *p, *q; 1218 u_int8_t f = 0; 1219 1220 for (p = s; *p; p++) { 1221 if ((q = strchr(tcpflags, *p)) == NULL) 1222 return -1; 1223 else 1224 f |= 1 << (q - tcpflags); 1225 } 1226 return (f ? f : PF_TH_ALL); 1227 } 1228 1229 void 1230 set_ipmask(struct node_host *h, u_int8_t b) 1231 { 1232 struct pf_addr *m, *n; 1233 int i, j = 0; 1234 1235 m = &h->addr.v.a.mask; 1236 memset(m, 0, sizeof(*m)); 1237 1238 while (b >= 32) { 1239 m->addr32[j++] = 0xffffffff; 1240 b -= 32; 1241 } 1242 for (i = 31; i > 31-b; --i) 1243 m->addr32[j] |= (1 << i); 1244 if (b) 1245 m->addr32[j] = htonl(m->addr32[j]); 1246 1247 /* Mask off bits of the address that will never be used. */ 1248 n = &h->addr.v.a.addr; 1249 if (h->addr.type == PF_ADDR_ADDRMASK) 1250 for (i = 0; i < 4; i++) 1251 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1252 } 1253 1254 int 1255 check_netmask(struct node_host *h, sa_family_t af) 1256 { 1257 struct node_host *n = NULL; 1258 struct pf_addr *m; 1259 1260 for (n = h; n != NULL; n = n->next) { 1261 if (h->addr.type == PF_ADDR_TABLE) 1262 continue; 1263 m = &h->addr.v.a.mask; 1264 /* fix up netmask for dynaddr */ 1265 if (af == AF_INET && h->addr.type == PF_ADDR_DYNIFTL && 1266 unmask(m, AF_INET6) > 32) 1267 set_ipmask(n, 32); 1268 /* netmasks > 32 bit are invalid on v4 */ 1269 if (af == AF_INET && 1270 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1271 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1272 unmask(m, AF_INET6)); 1273 return (1); 1274 } 1275 } 1276 return (0); 1277 } 1278 1279 /* interface lookup routines */ 1280 1281 static struct node_host *iftab; 1282 1283 /* 1284 * Retrieve the list of groups this interface is a member of and make sure 1285 * each group is in the group map. 1286 */ 1287 static void 1288 ifa_add_groups_to_map(char *ifa_name) 1289 { 1290 int s, len; 1291 struct ifgroupreq ifgr; 1292 struct ifg_req *ifg; 1293 1294 s = get_query_socket(); 1295 1296 /* Get size of group list for this interface */ 1297 memset(&ifgr, 0, sizeof(ifgr)); 1298 strlcpy(ifgr.ifgr_name, ifa_name, IFNAMSIZ); 1299 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1300 err(1, "SIOCGIFGROUP"); 1301 1302 /* Retrieve group list for this interface */ 1303 len = ifgr.ifgr_len; 1304 ifgr.ifgr_groups = 1305 (struct ifg_req *)calloc(len / sizeof(struct ifg_req), 1306 sizeof(struct ifg_req)); 1307 if (ifgr.ifgr_groups == NULL) 1308 err(1, "calloc"); 1309 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1310 err(1, "SIOCGIFGROUP"); 1311 1312 ifg = ifgr.ifgr_groups; 1313 for (; ifg && len >= sizeof(struct ifg_req); ifg++) { 1314 len -= sizeof(struct ifg_req); 1315 if (strcmp(ifg->ifgrq_group, "all")) { 1316 ENTRY item; 1317 ENTRY *ret_item; 1318 int *answer; 1319 1320 item.key = ifg->ifgrq_group; 1321 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) { 1322 struct ifgroupreq ifgr2; 1323 1324 /* Don't know the answer yet */ 1325 if ((answer = malloc(sizeof(int))) == NULL) 1326 err(1, "malloc"); 1327 1328 bzero(&ifgr2, sizeof(ifgr2)); 1329 strlcpy(ifgr2.ifgr_name, ifg->ifgrq_group, 1330 sizeof(ifgr2.ifgr_name)); 1331 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr2) == 0) 1332 *answer = ifgr2.ifgr_len; 1333 else 1334 *answer = 0; 1335 1336 item.key = strdup(ifg->ifgrq_group); 1337 item.data = answer; 1338 if (hsearch_r(item, ENTER, &ret_item, 1339 &isgroup_map) == 0) 1340 err(1, "interface group query response" 1341 " map insert"); 1342 } 1343 } 1344 } 1345 free(ifgr.ifgr_groups); 1346 } 1347 1348 void 1349 ifa_load(void) 1350 { 1351 struct ifaddrs *ifap, *ifa; 1352 struct node_host *n = NULL, *h = NULL; 1353 1354 if (getifaddrs(&ifap) < 0) 1355 err(1, "getifaddrs"); 1356 1357 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1358 if (!(ifa->ifa_addr->sa_family == AF_INET || 1359 ifa->ifa_addr->sa_family == AF_INET6 || 1360 ifa->ifa_addr->sa_family == AF_LINK)) 1361 continue; 1362 n = calloc(1, sizeof(struct node_host)); 1363 if (n == NULL) 1364 err(1, "address: calloc"); 1365 n->af = ifa->ifa_addr->sa_family; 1366 n->ifa_flags = ifa->ifa_flags; 1367 #ifdef __KAME__ 1368 if (n->af == AF_INET6 && 1369 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1370 ifa->ifa_addr)->sin6_addr) && 1371 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1372 0) { 1373 struct sockaddr_in6 *sin6; 1374 1375 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1376 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1377 sin6->sin6_addr.s6_addr[3]; 1378 sin6->sin6_addr.s6_addr[2] = 0; 1379 sin6->sin6_addr.s6_addr[3] = 0; 1380 } 1381 #endif 1382 n->ifindex = 0; 1383 if (n->af == AF_INET) { 1384 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *) 1385 ifa->ifa_addr)->sin_addr.s_addr, 1386 sizeof(struct in_addr)); 1387 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *) 1388 ifa->ifa_netmask)->sin_addr.s_addr, 1389 sizeof(struct in_addr)); 1390 if (ifa->ifa_broadaddr != NULL) 1391 memcpy(&n->bcast, &((struct sockaddr_in *) 1392 ifa->ifa_broadaddr)->sin_addr.s_addr, 1393 sizeof(struct in_addr)); 1394 if (ifa->ifa_dstaddr != NULL) 1395 memcpy(&n->peer, &((struct sockaddr_in *) 1396 ifa->ifa_dstaddr)->sin_addr.s_addr, 1397 sizeof(struct in_addr)); 1398 } else if (n->af == AF_INET6) { 1399 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *) 1400 ifa->ifa_addr)->sin6_addr.s6_addr, 1401 sizeof(struct in6_addr)); 1402 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *) 1403 ifa->ifa_netmask)->sin6_addr.s6_addr, 1404 sizeof(struct in6_addr)); 1405 if (ifa->ifa_broadaddr != NULL) 1406 memcpy(&n->bcast, &((struct sockaddr_in6 *) 1407 ifa->ifa_broadaddr)->sin6_addr.s6_addr, 1408 sizeof(struct in6_addr)); 1409 if (ifa->ifa_dstaddr != NULL) 1410 memcpy(&n->peer, &((struct sockaddr_in6 *) 1411 ifa->ifa_dstaddr)->sin6_addr.s6_addr, 1412 sizeof(struct in6_addr)); 1413 n->ifindex = ((struct sockaddr_in6 *) 1414 ifa->ifa_addr)->sin6_scope_id; 1415 } else if (n->af == AF_LINK) { 1416 ifa_add_groups_to_map(ifa->ifa_name); 1417 } 1418 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1419 err(1, "ifa_load: strdup"); 1420 n->next = NULL; 1421 n->tail = n; 1422 if (h == NULL) 1423 h = n; 1424 else { 1425 h->tail->next = n; 1426 h->tail = n; 1427 } 1428 } 1429 1430 iftab = h; 1431 freeifaddrs(ifap); 1432 } 1433 1434 static int 1435 get_socket_domain(void) 1436 { 1437 int sdom; 1438 1439 sdom = AF_UNSPEC; 1440 #ifdef WITH_INET6 1441 if (sdom == AF_UNSPEC && feature_present("inet6")) 1442 sdom = AF_INET6; 1443 #endif 1444 #ifdef WITH_INET 1445 if (sdom == AF_UNSPEC && feature_present("inet")) 1446 sdom = AF_INET; 1447 #endif 1448 if (sdom == AF_UNSPEC) 1449 sdom = AF_LINK; 1450 1451 return (sdom); 1452 } 1453 1454 int 1455 get_query_socket(void) 1456 { 1457 static int s = -1; 1458 1459 if (s == -1) { 1460 if ((s = socket(get_socket_domain(), SOCK_DGRAM, 0)) == -1) 1461 err(1, "socket"); 1462 } 1463 1464 return (s); 1465 } 1466 1467 /* 1468 * Returns the response len if the name is a group, otherwise returns 0. 1469 */ 1470 static int 1471 is_a_group(char *name) 1472 { 1473 ENTRY item; 1474 ENTRY *ret_item; 1475 1476 item.key = name; 1477 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) 1478 return (0); 1479 1480 return (*(int *)ret_item->data); 1481 } 1482 1483 struct node_host * 1484 ifa_exists(char *ifa_name) 1485 { 1486 struct node_host *n; 1487 1488 if (iftab == NULL) 1489 ifa_load(); 1490 1491 /* check whether this is a group */ 1492 if (is_a_group(ifa_name)) { 1493 /* fake a node_host */ 1494 if ((n = calloc(1, sizeof(*n))) == NULL) 1495 err(1, "calloc"); 1496 if ((n->ifname = strdup(ifa_name)) == NULL) 1497 err(1, "strdup"); 1498 return (n); 1499 } 1500 1501 for (n = iftab; n; n = n->next) { 1502 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1503 return (n); 1504 } 1505 1506 return (NULL); 1507 } 1508 1509 struct node_host * 1510 ifa_grouplookup(char *ifa_name, int flags) 1511 { 1512 struct ifg_req *ifg; 1513 struct ifgroupreq ifgr; 1514 int s, len; 1515 struct node_host *n, *h = NULL; 1516 1517 s = get_query_socket(); 1518 len = is_a_group(ifa_name); 1519 if (len == 0) 1520 return (NULL); 1521 bzero(&ifgr, sizeof(ifgr)); 1522 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1523 ifgr.ifgr_len = len; 1524 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1525 err(1, "calloc"); 1526 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1527 err(1, "SIOCGIFGMEMB"); 1528 1529 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1530 ifg++) { 1531 len -= sizeof(struct ifg_req); 1532 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1533 continue; 1534 if (h == NULL) 1535 h = n; 1536 else { 1537 h->tail->next = n; 1538 h->tail = n->tail; 1539 } 1540 } 1541 free(ifgr.ifgr_groups); 1542 1543 return (h); 1544 } 1545 1546 struct node_host * 1547 ifa_lookup(char *ifa_name, int flags) 1548 { 1549 struct node_host *p = NULL, *h = NULL, *n = NULL; 1550 int got4 = 0, got6 = 0; 1551 const char *last_if = NULL; 1552 1553 /* first load iftab and isgroup_map */ 1554 if (iftab == NULL) 1555 ifa_load(); 1556 1557 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1558 return (h); 1559 1560 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1561 ifa_name = NULL; 1562 1563 for (p = iftab; p; p = p->next) { 1564 if (ifa_skip_if(ifa_name, p)) 1565 continue; 1566 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1567 continue; 1568 if ((flags & PFI_AFLAG_BROADCAST) && 1569 !(p->ifa_flags & IFF_BROADCAST)) 1570 continue; 1571 if ((flags & PFI_AFLAG_PEER) && 1572 !(p->ifa_flags & IFF_POINTOPOINT)) 1573 continue; 1574 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1575 continue; 1576 if (last_if == NULL || strcmp(last_if, p->ifname)) 1577 got4 = got6 = 0; 1578 last_if = p->ifname; 1579 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1580 continue; 1581 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && 1582 IN6_IS_ADDR_LINKLOCAL(&p->addr.v.a.addr.v6)) 1583 continue; 1584 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1585 continue; 1586 if (p->af == AF_INET) 1587 got4 = 1; 1588 else 1589 got6 = 1; 1590 n = calloc(1, sizeof(struct node_host)); 1591 if (n == NULL) 1592 err(1, "address: calloc"); 1593 n->af = p->af; 1594 if (flags & PFI_AFLAG_BROADCAST) 1595 memcpy(&n->addr.v.a.addr, &p->bcast, 1596 sizeof(struct pf_addr)); 1597 else if (flags & PFI_AFLAG_PEER) 1598 memcpy(&n->addr.v.a.addr, &p->peer, 1599 sizeof(struct pf_addr)); 1600 else 1601 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1602 sizeof(struct pf_addr)); 1603 if (flags & PFI_AFLAG_NETWORK) 1604 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af)); 1605 else { 1606 if (n->af == AF_INET) { 1607 if (p->ifa_flags & IFF_LOOPBACK && 1608 p->ifa_flags & IFF_LINK1) 1609 memcpy(&n->addr.v.a.mask, 1610 &p->addr.v.a.mask, 1611 sizeof(struct pf_addr)); 1612 else 1613 set_ipmask(n, 32); 1614 } else 1615 set_ipmask(n, 128); 1616 } 1617 n->ifindex = p->ifindex; 1618 n->ifname = strdup(p->ifname); 1619 1620 n->next = NULL; 1621 n->tail = n; 1622 if (h == NULL) 1623 h = n; 1624 else { 1625 h->tail->next = n; 1626 h->tail = n; 1627 } 1628 } 1629 return (h); 1630 } 1631 1632 int 1633 ifa_skip_if(const char *filter, struct node_host *p) 1634 { 1635 int n; 1636 1637 if (p->af != AF_INET && p->af != AF_INET6) 1638 return (1); 1639 if (filter == NULL || !*filter) 1640 return (0); 1641 if (!strcmp(p->ifname, filter)) 1642 return (0); /* exact match */ 1643 n = strlen(filter); 1644 if (n < 1 || n >= IFNAMSIZ) 1645 return (1); /* sanity check */ 1646 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1647 return (1); /* only do exact match in that case */ 1648 if (strncmp(p->ifname, filter, n)) 1649 return (1); /* prefix doesn't match */ 1650 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1651 } 1652 1653 1654 struct node_host * 1655 host(const char *s) 1656 { 1657 struct node_host *h = NULL; 1658 int mask, v4mask, v6mask, cont = 1; 1659 char *p, *q, *ps; 1660 1661 if ((p = strrchr(s, '/')) != NULL) { 1662 mask = strtol(p+1, &q, 0); 1663 if (!q || *q || mask > 128 || q == (p+1)) { 1664 fprintf(stderr, "invalid netmask '%s'\n", p); 1665 return (NULL); 1666 } 1667 if ((ps = malloc(strlen(s) - strlen(p) + 1)) == NULL) 1668 err(1, "host: malloc"); 1669 strlcpy(ps, s, strlen(s) - strlen(p) + 1); 1670 v4mask = v6mask = mask; 1671 } else { 1672 if ((ps = strdup(s)) == NULL) 1673 err(1, "host: strdup"); 1674 v4mask = 32; 1675 v6mask = 128; 1676 mask = -1; 1677 } 1678 1679 /* IPv4 address? */ 1680 if (cont && (h = host_v4(s, mask)) != NULL) 1681 cont = 0; 1682 1683 /* IPv6 address? */ 1684 if (cont && (h = host_v6(ps, v6mask)) != NULL) 1685 cont = 0; 1686 1687 /* interface with this name exists? */ 1688 /* expensive with thousands of interfaces - prioritze IPv4/6 check */ 1689 if (cont && (h = host_if(ps, mask)) != NULL) 1690 cont = 0; 1691 1692 /* dns lookup */ 1693 if (cont && (h = host_dns(ps, v4mask, v6mask)) != NULL) 1694 cont = 0; 1695 free(ps); 1696 1697 if (h == NULL || cont == 1) { 1698 fprintf(stderr, "no IP address found for %s\n", s); 1699 return (NULL); 1700 } 1701 return (h); 1702 } 1703 1704 struct node_host * 1705 host_if(const char *s, int mask) 1706 { 1707 struct node_host *n, *h = NULL; 1708 char *p, *ps; 1709 int flags = 0; 1710 1711 if ((ps = strdup(s)) == NULL) 1712 err(1, "host_if: strdup"); 1713 while ((p = strrchr(ps, ':')) != NULL) { 1714 if (!strcmp(p+1, "network")) 1715 flags |= PFI_AFLAG_NETWORK; 1716 else if (!strcmp(p+1, "broadcast")) 1717 flags |= PFI_AFLAG_BROADCAST; 1718 else if (!strcmp(p+1, "peer")) 1719 flags |= PFI_AFLAG_PEER; 1720 else if (!strcmp(p+1, "0")) 1721 flags |= PFI_AFLAG_NOALIAS; 1722 else { 1723 free(ps); 1724 return (NULL); 1725 } 1726 *p = '\0'; 1727 } 1728 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1729 fprintf(stderr, "illegal combination of interface modifiers\n"); 1730 free(ps); 1731 return (NULL); 1732 } 1733 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1734 fprintf(stderr, "network or broadcast lookup, but " 1735 "extra netmask given\n"); 1736 free(ps); 1737 return (NULL); 1738 } 1739 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1740 /* interface with this name exists */ 1741 h = ifa_lookup(ps, flags); 1742 for (n = h; n != NULL && mask > -1; n = n->next) 1743 set_ipmask(n, mask); 1744 } 1745 1746 free(ps); 1747 return (h); 1748 } 1749 1750 struct node_host * 1751 host_v4(const char *s, int mask) 1752 { 1753 struct node_host *h = NULL; 1754 struct in_addr ina; 1755 int bits = 32; 1756 1757 memset(&ina, 0, sizeof(struct in_addr)); 1758 if (strrchr(s, '/') != NULL) { 1759 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1) 1760 return (NULL); 1761 } else { 1762 if (inet_pton(AF_INET, s, &ina) != 1) 1763 return (NULL); 1764 } 1765 1766 h = calloc(1, sizeof(struct node_host)); 1767 if (h == NULL) 1768 err(1, "address: calloc"); 1769 h->ifname = NULL; 1770 h->af = AF_INET; 1771 h->addr.v.a.addr.addr32[0] = ina.s_addr; 1772 set_ipmask(h, bits); 1773 h->next = NULL; 1774 h->tail = h; 1775 1776 return (h); 1777 } 1778 1779 struct node_host * 1780 host_v6(const char *s, int mask) 1781 { 1782 struct addrinfo hints, *res; 1783 struct node_host *h = NULL; 1784 1785 memset(&hints, 0, sizeof(hints)); 1786 hints.ai_family = AF_INET6; 1787 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1788 hints.ai_flags = AI_NUMERICHOST; 1789 if (getaddrinfo(s, "0", &hints, &res) == 0) { 1790 h = calloc(1, sizeof(struct node_host)); 1791 if (h == NULL) 1792 err(1, "address: calloc"); 1793 h->ifname = NULL; 1794 h->af = AF_INET6; 1795 memcpy(&h->addr.v.a.addr, 1796 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 1797 sizeof(h->addr.v.a.addr)); 1798 h->ifindex = 1799 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1800 set_ipmask(h, mask); 1801 freeaddrinfo(res); 1802 h->next = NULL; 1803 h->tail = h; 1804 } 1805 1806 return (h); 1807 } 1808 1809 struct node_host * 1810 host_dns(const char *s, int v4mask, int v6mask) 1811 { 1812 struct addrinfo hints, *res0, *res; 1813 struct node_host *n, *h = NULL; 1814 int error, noalias = 0; 1815 int got4 = 0, got6 = 0; 1816 char *p, *ps; 1817 1818 if ((ps = strdup(s)) == NULL) 1819 err(1, "host_dns: strdup"); 1820 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1821 noalias = 1; 1822 *p = '\0'; 1823 } 1824 memset(&hints, 0, sizeof(hints)); 1825 hints.ai_family = PF_UNSPEC; 1826 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1827 error = getaddrinfo(ps, NULL, &hints, &res0); 1828 if (error) { 1829 free(ps); 1830 return (h); 1831 } 1832 1833 for (res = res0; res; res = res->ai_next) { 1834 if (res->ai_family != AF_INET && 1835 res->ai_family != AF_INET6) 1836 continue; 1837 if (noalias) { 1838 if (res->ai_family == AF_INET) { 1839 if (got4) 1840 continue; 1841 got4 = 1; 1842 } else { 1843 if (got6) 1844 continue; 1845 got6 = 1; 1846 } 1847 } 1848 n = calloc(1, sizeof(struct node_host)); 1849 if (n == NULL) 1850 err(1, "host_dns: calloc"); 1851 n->ifname = NULL; 1852 n->af = res->ai_family; 1853 if (res->ai_family == AF_INET) { 1854 memcpy(&n->addr.v.a.addr, 1855 &((struct sockaddr_in *) 1856 res->ai_addr)->sin_addr.s_addr, 1857 sizeof(struct in_addr)); 1858 set_ipmask(n, v4mask); 1859 } else { 1860 memcpy(&n->addr.v.a.addr, 1861 &((struct sockaddr_in6 *) 1862 res->ai_addr)->sin6_addr.s6_addr, 1863 sizeof(struct in6_addr)); 1864 n->ifindex = 1865 ((struct sockaddr_in6 *) 1866 res->ai_addr)->sin6_scope_id; 1867 set_ipmask(n, v6mask); 1868 } 1869 n->next = NULL; 1870 n->tail = n; 1871 if (h == NULL) 1872 h = n; 1873 else { 1874 h->tail->next = n; 1875 h->tail = n; 1876 } 1877 } 1878 freeaddrinfo(res0); 1879 free(ps); 1880 1881 return (h); 1882 } 1883 1884 /* 1885 * convert a hostname to a list of addresses and put them in the given buffer. 1886 * test: 1887 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1888 */ 1889 int 1890 append_addr(struct pfr_buffer *b, char *s, int test) 1891 { 1892 char *r; 1893 struct node_host *h, *n; 1894 int rv, not = 0; 1895 1896 for (r = s; *r == '!'; r++) 1897 not = !not; 1898 if ((n = host(r)) == NULL) { 1899 errno = 0; 1900 return (-1); 1901 } 1902 rv = append_addr_host(b, n, test, not); 1903 do { 1904 h = n; 1905 n = n->next; 1906 free(h); 1907 } while (n != NULL); 1908 return (rv); 1909 } 1910 1911 /* 1912 * same as previous function, but with a pre-parsed input and the ability 1913 * to "negate" the result. Does not free the node_host list. 1914 * not: 1915 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1916 */ 1917 int 1918 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1919 { 1920 int bits; 1921 struct pfr_addr addr; 1922 1923 do { 1924 bzero(&addr, sizeof(addr)); 1925 addr.pfra_not = n->not ^ not; 1926 addr.pfra_af = n->af; 1927 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af); 1928 switch (n->af) { 1929 case AF_INET: 1930 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 1931 bits = 32; 1932 break; 1933 case AF_INET6: 1934 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 1935 sizeof(struct in6_addr)); 1936 bits = 128; 1937 break; 1938 default: 1939 errno = EINVAL; 1940 return (-1); 1941 } 1942 if ((test && (not || addr.pfra_net != bits)) || 1943 addr.pfra_net > bits) { 1944 errno = EINVAL; 1945 return (-1); 1946 } 1947 if (pfr_buf_add(b, &addr)) 1948 return (-1); 1949 } while ((n = n->next) != NULL); 1950 1951 return (0); 1952 } 1953 1954 int 1955 pfctl_add_trans(struct pfr_buffer *buf, int rs_num, const char *anchor) 1956 { 1957 struct pfioc_trans_e trans; 1958 1959 bzero(&trans, sizeof(trans)); 1960 trans.rs_num = rs_num; 1961 if (strlcpy(trans.anchor, anchor, 1962 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 1963 errx(1, "pfctl_add_trans: strlcpy"); 1964 1965 return pfr_buf_add(buf, &trans); 1966 } 1967 1968 u_int32_t 1969 pfctl_get_ticket(struct pfr_buffer *buf, int rs_num, const char *anchor) 1970 { 1971 struct pfioc_trans_e *p; 1972 1973 PFRB_FOREACH(p, buf) 1974 if (rs_num == p->rs_num && !strcmp(anchor, p->anchor)) 1975 return (p->ticket); 1976 errx(1, "pfctl_get_ticket: assertion failed"); 1977 } 1978 1979 int 1980 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 1981 { 1982 struct pfioc_trans trans; 1983 1984 bzero(&trans, sizeof(trans)); 1985 trans.size = buf->pfrb_size - from; 1986 trans.esize = sizeof(struct pfioc_trans_e); 1987 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 1988 return ioctl(dev, cmd, &trans); 1989 } 1990