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 if (r->proto == ETHERTYPE_IP || r->proto == ETHERTYPE_IPV6) { 786 printf(" l3"); 787 print_fromto(&r->ipsrc, PF_OSFP_ANY, &r->ipdst, 788 r->proto == ETHERTYPE_IP ? AF_INET : AF_INET6, 0, 789 0, 0); 790 } 791 if (r->qname[0]) 792 printf(" queue %s", r->qname); 793 if (r->tagname[0]) 794 printf(" tag %s", r->tagname); 795 if (r->dnpipe) 796 printf(" %s %d", 797 r->dnflags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 798 r->dnpipe); 799 } 800 801 void 802 print_rule(struct pfctl_rule *r, const char *anchor_call, int verbose, int numeric) 803 { 804 static const char *actiontypes[] = { "pass", "block", "scrub", 805 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr" }; 806 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 807 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 808 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 809 int i, opts; 810 811 if (verbose) 812 printf("@%d ", r->nr); 813 if (r->action == PF_MATCH) 814 printf("match"); 815 else if (r->action > PF_NORDR) 816 printf("action(%d)", r->action); 817 else if (anchor_call[0]) { 818 if (anchor_call[0] == '_') { 819 printf("%s", anchortypes[r->action]); 820 } else 821 printf("%s \"%s\"", anchortypes[r->action], 822 anchor_call); 823 } else { 824 printf("%s", actiontypes[r->action]); 825 if (r->natpass) 826 printf(" pass"); 827 } 828 if (r->action == PF_DROP) { 829 if (r->rule_flag & PFRULE_RETURN) 830 printf(" return"); 831 else if (r->rule_flag & PFRULE_RETURNRST) { 832 if (!r->return_ttl) 833 printf(" return-rst"); 834 else 835 printf(" return-rst(ttl %d)", r->return_ttl); 836 } else if (r->rule_flag & PFRULE_RETURNICMP) { 837 const struct icmpcodeent *ic, *ic6; 838 839 ic = geticmpcodebynumber(r->return_icmp >> 8, 840 r->return_icmp & 255, AF_INET); 841 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 842 r->return_icmp6 & 255, AF_INET6); 843 844 switch (r->af) { 845 case AF_INET: 846 printf(" return-icmp"); 847 if (ic == NULL) 848 printf("(%u)", r->return_icmp & 255); 849 else 850 printf("(%s)", ic->name); 851 break; 852 case AF_INET6: 853 printf(" return-icmp6"); 854 if (ic6 == NULL) 855 printf("(%u)", r->return_icmp6 & 255); 856 else 857 printf("(%s)", ic6->name); 858 break; 859 default: 860 printf(" return-icmp"); 861 if (ic == NULL) 862 printf("(%u, ", r->return_icmp & 255); 863 else 864 printf("(%s, ", ic->name); 865 if (ic6 == NULL) 866 printf("%u)", r->return_icmp6 & 255); 867 else 868 printf("%s)", ic6->name); 869 break; 870 } 871 } else 872 printf(" drop"); 873 } 874 if (r->direction == PF_IN) 875 printf(" in"); 876 else if (r->direction == PF_OUT) 877 printf(" out"); 878 if (r->log) { 879 printf(" log"); 880 if (r->log & ~PF_LOG || r->logif) { 881 int count = 0; 882 883 printf(" ("); 884 if (r->log & PF_LOG_ALL) 885 printf("%sall", count++ ? ", " : ""); 886 if (r->log & PF_LOG_SOCKET_LOOKUP) 887 printf("%suser", count++ ? ", " : ""); 888 if (r->logif) 889 printf("%sto pflog%u", count++ ? ", " : "", 890 r->logif); 891 printf(")"); 892 } 893 } 894 if (r->quick) 895 printf(" quick"); 896 if (r->ifname[0]) { 897 if (r->ifnot) 898 printf(" on ! %s", r->ifname); 899 else 900 printf(" on %s", r->ifname); 901 } 902 if (r->rt) { 903 if (r->rt == PF_ROUTETO) 904 printf(" route-to"); 905 else if (r->rt == PF_REPLYTO) 906 printf(" reply-to"); 907 else if (r->rt == PF_DUPTO) 908 printf(" dup-to"); 909 printf(" "); 910 print_pool(&r->rpool, 0, 0, r->af, PF_PASS); 911 } 912 if (r->af) { 913 if (r->af == AF_INET) 914 printf(" inet"); 915 else 916 printf(" inet6"); 917 } 918 if (r->proto) { 919 const char *protoname; 920 921 if ((protoname = pfctl_proto2name(r->proto)) != NULL) 922 printf(" proto %s", protoname); 923 else 924 printf(" proto %u", r->proto); 925 } 926 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 927 verbose, numeric); 928 if (r->uid.op) 929 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 930 UID_MAX); 931 if (r->gid.op) 932 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 933 GID_MAX); 934 if (r->flags || r->flagset) { 935 printf(" flags "); 936 print_flags(r->flags); 937 printf("/"); 938 print_flags(r->flagset); 939 } else if (r->action == PF_PASS && 940 (!r->proto || r->proto == IPPROTO_TCP) && 941 !(r->rule_flag & PFRULE_FRAGMENT) && 942 !anchor_call[0] && r->keep_state) 943 printf(" flags any"); 944 if (r->type) { 945 const struct icmptypeent *it; 946 947 it = geticmptypebynumber(r->type-1, r->af); 948 if (r->af != AF_INET6) 949 printf(" icmp-type"); 950 else 951 printf(" icmp6-type"); 952 if (it != NULL) 953 printf(" %s", it->name); 954 else 955 printf(" %u", r->type-1); 956 if (r->code) { 957 const struct icmpcodeent *ic; 958 959 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 960 if (ic != NULL) 961 printf(" code %s", ic->name); 962 else 963 printf(" code %u", r->code-1); 964 } 965 } 966 if (r->tos) 967 printf(" tos 0x%2.2x", r->tos); 968 if (r->prio) 969 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio); 970 if (r->scrub_flags & PFSTATE_SETMASK) { 971 char *comma = ""; 972 printf(" set ("); 973 if (r->scrub_flags & PFSTATE_SETPRIO) { 974 if (r->set_prio[0] == r->set_prio[1]) 975 printf("%s prio %u", comma, r->set_prio[0]); 976 else 977 printf("%s prio(%u, %u)", comma, r->set_prio[0], 978 r->set_prio[1]); 979 comma = ","; 980 } 981 printf(" )"); 982 } 983 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 984 printf(" no state"); 985 else if (r->keep_state == PF_STATE_NORMAL) 986 printf(" keep state"); 987 else if (r->keep_state == PF_STATE_MODULATE) 988 printf(" modulate state"); 989 else if (r->keep_state == PF_STATE_SYNPROXY) 990 printf(" synproxy state"); 991 if (r->prob) { 992 char buf[20]; 993 994 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 995 for (i = strlen(buf)-1; i > 0; i--) { 996 if (buf[i] == '0') 997 buf[i] = '\0'; 998 else { 999 if (buf[i] == '.') 1000 buf[i] = '\0'; 1001 break; 1002 } 1003 } 1004 printf(" probability %s%%", buf); 1005 } 1006 opts = 0; 1007 if (r->max_states || r->max_src_nodes || r->max_src_states) 1008 opts = 1; 1009 if (r->rule_flag & PFRULE_NOSYNC) 1010 opts = 1; 1011 if (r->rule_flag & PFRULE_SRCTRACK) 1012 opts = 1; 1013 if (r->rule_flag & PFRULE_IFBOUND) 1014 opts = 1; 1015 if (r->rule_flag & PFRULE_STATESLOPPY) 1016 opts = 1; 1017 for (i = 0; !opts && i < PFTM_MAX; ++i) 1018 if (r->timeout[i]) 1019 opts = 1; 1020 if (opts) { 1021 printf(" ("); 1022 if (r->max_states) { 1023 printf("max %u", r->max_states); 1024 opts = 0; 1025 } 1026 if (r->rule_flag & PFRULE_NOSYNC) { 1027 if (!opts) 1028 printf(", "); 1029 printf("no-sync"); 1030 opts = 0; 1031 } 1032 if (r->rule_flag & PFRULE_SRCTRACK) { 1033 if (!opts) 1034 printf(", "); 1035 printf("source-track"); 1036 if (r->rule_flag & PFRULE_RULESRCTRACK) 1037 printf(" rule"); 1038 else 1039 printf(" global"); 1040 opts = 0; 1041 } 1042 if (r->max_src_states) { 1043 if (!opts) 1044 printf(", "); 1045 printf("max-src-states %u", r->max_src_states); 1046 opts = 0; 1047 } 1048 if (r->max_src_conn) { 1049 if (!opts) 1050 printf(", "); 1051 printf("max-src-conn %u", r->max_src_conn); 1052 opts = 0; 1053 } 1054 if (r->max_src_conn_rate.limit) { 1055 if (!opts) 1056 printf(", "); 1057 printf("max-src-conn-rate %u/%u", 1058 r->max_src_conn_rate.limit, 1059 r->max_src_conn_rate.seconds); 1060 opts = 0; 1061 } 1062 if (r->max_src_nodes) { 1063 if (!opts) 1064 printf(", "); 1065 printf("max-src-nodes %u", r->max_src_nodes); 1066 opts = 0; 1067 } 1068 if (r->overload_tblname[0]) { 1069 if (!opts) 1070 printf(", "); 1071 printf("overload <%s>", r->overload_tblname); 1072 if (r->flush) 1073 printf(" flush"); 1074 if (r->flush & PF_FLUSH_GLOBAL) 1075 printf(" global"); 1076 } 1077 if (r->rule_flag & PFRULE_IFBOUND) { 1078 if (!opts) 1079 printf(", "); 1080 printf("if-bound"); 1081 opts = 0; 1082 } 1083 if (r->rule_flag & PFRULE_STATESLOPPY) { 1084 if (!opts) 1085 printf(", "); 1086 printf("sloppy"); 1087 opts = 0; 1088 } 1089 for (i = 0; i < PFTM_MAX; ++i) 1090 if (r->timeout[i]) { 1091 int j; 1092 1093 if (!opts) 1094 printf(", "); 1095 opts = 0; 1096 for (j = 0; pf_timeouts[j].name != NULL; 1097 ++j) 1098 if (pf_timeouts[j].timeout == i) 1099 break; 1100 printf("%s %u", pf_timeouts[j].name == NULL ? 1101 "inv.timeout" : pf_timeouts[j].name, 1102 r->timeout[i]); 1103 } 1104 printf(")"); 1105 } 1106 if (r->rule_flag & PFRULE_FRAGMENT) 1107 printf(" fragment"); 1108 if (r->rule_flag & PFRULE_NODF) 1109 printf(" no-df"); 1110 if (r->rule_flag & PFRULE_RANDOMID) 1111 printf(" random-id"); 1112 if (r->min_ttl) 1113 printf(" min-ttl %d", r->min_ttl); 1114 if (r->max_mss) 1115 printf(" max-mss %d", r->max_mss); 1116 if (r->rule_flag & PFRULE_SET_TOS) 1117 printf(" set-tos 0x%2.2x", r->set_tos); 1118 if (r->allow_opts) 1119 printf(" allow-opts"); 1120 if (r->action == PF_SCRUB) { 1121 if (r->rule_flag & PFRULE_REASSEMBLE_TCP) 1122 printf(" reassemble tcp"); 1123 1124 printf(" fragment reassemble"); 1125 } 1126 i = 0; 1127 while (r->label[i][0]) 1128 printf(" label \"%s\"", r->label[i++]); 1129 if (r->ridentifier) 1130 printf(" ridentifier %u", r->ridentifier); 1131 /* Only dnrpipe as we might do (0, 42) to only queue return traffic. */ 1132 if (r->dnrpipe) 1133 printf(" %s(%d, %d)", 1134 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1135 r->dnpipe, r->dnrpipe); 1136 else if (r->dnpipe) 1137 printf(" %s %d", 1138 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1139 r->dnpipe); 1140 if (r->qname[0] && r->pqname[0]) 1141 printf(" queue(%s, %s)", r->qname, r->pqname); 1142 else if (r->qname[0]) 1143 printf(" queue %s", r->qname); 1144 if (r->tagname[0]) 1145 printf(" tag %s", r->tagname); 1146 if (r->match_tagname[0]) { 1147 if (r->match_tag_not) 1148 printf(" !"); 1149 printf(" tagged %s", r->match_tagname); 1150 } 1151 if (r->rtableid != -1) 1152 printf(" rtable %u", r->rtableid); 1153 if (r->divert.port) { 1154 #ifdef __FreeBSD__ 1155 printf(" divert-to %u", ntohs(r->divert.port)); 1156 #else 1157 if (PF_AZERO(&r->divert.addr, r->af)) { 1158 printf(" divert-reply"); 1159 } else { 1160 /* XXX cut&paste from print_addr */ 1161 char buf[48]; 1162 1163 printf(" divert-to "); 1164 if (inet_ntop(r->af, &r->divert.addr, buf, 1165 sizeof(buf)) == NULL) 1166 printf("?"); 1167 else 1168 printf("%s", buf); 1169 printf(" port %u", ntohs(r->divert.port)); 1170 } 1171 #endif 1172 } 1173 if (!anchor_call[0] && (r->action == PF_NAT || 1174 r->action == PF_BINAT || r->action == PF_RDR)) { 1175 printf(" -> "); 1176 print_pool(&r->rpool, r->rpool.proxy_port[0], 1177 r->rpool.proxy_port[1], r->af, r->action); 1178 } 1179 } 1180 1181 void 1182 print_tabledef(const char *name, int flags, int addrs, 1183 struct node_tinithead *nodes) 1184 { 1185 struct node_tinit *ti, *nti; 1186 struct node_host *h; 1187 1188 printf("table <%s>", name); 1189 if (flags & PFR_TFLAG_CONST) 1190 printf(" const"); 1191 if (flags & PFR_TFLAG_PERSIST) 1192 printf(" persist"); 1193 if (flags & PFR_TFLAG_COUNTERS) 1194 printf(" counters"); 1195 SIMPLEQ_FOREACH(ti, nodes, entries) { 1196 if (ti->file) { 1197 printf(" file \"%s\"", ti->file); 1198 continue; 1199 } 1200 printf(" {"); 1201 for (;;) { 1202 for (h = ti->host; h != NULL; h = h->next) { 1203 printf(h->not ? " !" : " "); 1204 print_addr(&h->addr, h->af, 0); 1205 } 1206 nti = SIMPLEQ_NEXT(ti, entries); 1207 if (nti != NULL && nti->file == NULL) 1208 ti = nti; /* merge lists */ 1209 else 1210 break; 1211 } 1212 printf(" }"); 1213 } 1214 if (addrs && SIMPLEQ_EMPTY(nodes)) 1215 printf(" { }"); 1216 printf("\n"); 1217 } 1218 1219 int 1220 parse_flags(char *s) 1221 { 1222 char *p, *q; 1223 u_int8_t f = 0; 1224 1225 for (p = s; *p; p++) { 1226 if ((q = strchr(tcpflags, *p)) == NULL) 1227 return -1; 1228 else 1229 f |= 1 << (q - tcpflags); 1230 } 1231 return (f ? f : PF_TH_ALL); 1232 } 1233 1234 void 1235 set_ipmask(struct node_host *h, u_int8_t b) 1236 { 1237 struct pf_addr *m, *n; 1238 int i, j = 0; 1239 1240 m = &h->addr.v.a.mask; 1241 memset(m, 0, sizeof(*m)); 1242 1243 while (b >= 32) { 1244 m->addr32[j++] = 0xffffffff; 1245 b -= 32; 1246 } 1247 for (i = 31; i > 31-b; --i) 1248 m->addr32[j] |= (1 << i); 1249 if (b) 1250 m->addr32[j] = htonl(m->addr32[j]); 1251 1252 /* Mask off bits of the address that will never be used. */ 1253 n = &h->addr.v.a.addr; 1254 if (h->addr.type == PF_ADDR_ADDRMASK) 1255 for (i = 0; i < 4; i++) 1256 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1257 } 1258 1259 int 1260 check_netmask(struct node_host *h, sa_family_t af) 1261 { 1262 struct node_host *n = NULL; 1263 struct pf_addr *m; 1264 1265 for (n = h; n != NULL; n = n->next) { 1266 if (h->addr.type == PF_ADDR_TABLE) 1267 continue; 1268 m = &h->addr.v.a.mask; 1269 /* fix up netmask for dynaddr */ 1270 if (af == AF_INET && h->addr.type == PF_ADDR_DYNIFTL && 1271 unmask(m, AF_INET6) > 32) 1272 set_ipmask(n, 32); 1273 /* netmasks > 32 bit are invalid on v4 */ 1274 if (af == AF_INET && 1275 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1276 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1277 unmask(m, AF_INET6)); 1278 return (1); 1279 } 1280 } 1281 return (0); 1282 } 1283 1284 /* interface lookup routines */ 1285 1286 static struct node_host *iftab; 1287 1288 /* 1289 * Retrieve the list of groups this interface is a member of and make sure 1290 * each group is in the group map. 1291 */ 1292 static void 1293 ifa_add_groups_to_map(char *ifa_name) 1294 { 1295 int s, len; 1296 struct ifgroupreq ifgr; 1297 struct ifg_req *ifg; 1298 1299 s = get_query_socket(); 1300 1301 /* Get size of group list for this interface */ 1302 memset(&ifgr, 0, sizeof(ifgr)); 1303 strlcpy(ifgr.ifgr_name, ifa_name, IFNAMSIZ); 1304 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1305 err(1, "SIOCGIFGROUP"); 1306 1307 /* Retrieve group list for this interface */ 1308 len = ifgr.ifgr_len; 1309 ifgr.ifgr_groups = 1310 (struct ifg_req *)calloc(len / sizeof(struct ifg_req), 1311 sizeof(struct ifg_req)); 1312 if (ifgr.ifgr_groups == NULL) 1313 err(1, "calloc"); 1314 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1315 err(1, "SIOCGIFGROUP"); 1316 1317 ifg = ifgr.ifgr_groups; 1318 for (; ifg && len >= sizeof(struct ifg_req); ifg++) { 1319 len -= sizeof(struct ifg_req); 1320 if (strcmp(ifg->ifgrq_group, "all")) { 1321 ENTRY item; 1322 ENTRY *ret_item; 1323 int *answer; 1324 1325 item.key = ifg->ifgrq_group; 1326 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) { 1327 struct ifgroupreq ifgr2; 1328 1329 /* Don't know the answer yet */ 1330 if ((answer = malloc(sizeof(int))) == NULL) 1331 err(1, "malloc"); 1332 1333 bzero(&ifgr2, sizeof(ifgr2)); 1334 strlcpy(ifgr2.ifgr_name, ifg->ifgrq_group, 1335 sizeof(ifgr2.ifgr_name)); 1336 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr2) == 0) 1337 *answer = ifgr2.ifgr_len; 1338 else 1339 *answer = 0; 1340 1341 item.key = strdup(ifg->ifgrq_group); 1342 item.data = answer; 1343 if (hsearch_r(item, ENTER, &ret_item, 1344 &isgroup_map) == 0) 1345 err(1, "interface group query response" 1346 " map insert"); 1347 } 1348 } 1349 } 1350 free(ifgr.ifgr_groups); 1351 } 1352 1353 void 1354 ifa_load(void) 1355 { 1356 struct ifaddrs *ifap, *ifa; 1357 struct node_host *n = NULL, *h = NULL; 1358 1359 if (getifaddrs(&ifap) < 0) 1360 err(1, "getifaddrs"); 1361 1362 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1363 if (!(ifa->ifa_addr->sa_family == AF_INET || 1364 ifa->ifa_addr->sa_family == AF_INET6 || 1365 ifa->ifa_addr->sa_family == AF_LINK)) 1366 continue; 1367 n = calloc(1, sizeof(struct node_host)); 1368 if (n == NULL) 1369 err(1, "address: calloc"); 1370 n->af = ifa->ifa_addr->sa_family; 1371 n->ifa_flags = ifa->ifa_flags; 1372 #ifdef __KAME__ 1373 if (n->af == AF_INET6 && 1374 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1375 ifa->ifa_addr)->sin6_addr) && 1376 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1377 0) { 1378 struct sockaddr_in6 *sin6; 1379 1380 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1381 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1382 sin6->sin6_addr.s6_addr[3]; 1383 sin6->sin6_addr.s6_addr[2] = 0; 1384 sin6->sin6_addr.s6_addr[3] = 0; 1385 } 1386 #endif 1387 n->ifindex = 0; 1388 if (n->af == AF_INET) { 1389 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *) 1390 ifa->ifa_addr)->sin_addr.s_addr, 1391 sizeof(struct in_addr)); 1392 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *) 1393 ifa->ifa_netmask)->sin_addr.s_addr, 1394 sizeof(struct in_addr)); 1395 if (ifa->ifa_broadaddr != NULL) 1396 memcpy(&n->bcast, &((struct sockaddr_in *) 1397 ifa->ifa_broadaddr)->sin_addr.s_addr, 1398 sizeof(struct in_addr)); 1399 if (ifa->ifa_dstaddr != NULL) 1400 memcpy(&n->peer, &((struct sockaddr_in *) 1401 ifa->ifa_dstaddr)->sin_addr.s_addr, 1402 sizeof(struct in_addr)); 1403 } else if (n->af == AF_INET6) { 1404 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *) 1405 ifa->ifa_addr)->sin6_addr.s6_addr, 1406 sizeof(struct in6_addr)); 1407 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *) 1408 ifa->ifa_netmask)->sin6_addr.s6_addr, 1409 sizeof(struct in6_addr)); 1410 if (ifa->ifa_broadaddr != NULL) 1411 memcpy(&n->bcast, &((struct sockaddr_in6 *) 1412 ifa->ifa_broadaddr)->sin6_addr.s6_addr, 1413 sizeof(struct in6_addr)); 1414 if (ifa->ifa_dstaddr != NULL) 1415 memcpy(&n->peer, &((struct sockaddr_in6 *) 1416 ifa->ifa_dstaddr)->sin6_addr.s6_addr, 1417 sizeof(struct in6_addr)); 1418 n->ifindex = ((struct sockaddr_in6 *) 1419 ifa->ifa_addr)->sin6_scope_id; 1420 } else if (n->af == AF_LINK) { 1421 ifa_add_groups_to_map(ifa->ifa_name); 1422 } 1423 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1424 err(1, "ifa_load: strdup"); 1425 n->next = NULL; 1426 n->tail = n; 1427 if (h == NULL) 1428 h = n; 1429 else { 1430 h->tail->next = n; 1431 h->tail = n; 1432 } 1433 } 1434 1435 iftab = h; 1436 freeifaddrs(ifap); 1437 } 1438 1439 static int 1440 get_socket_domain(void) 1441 { 1442 int sdom; 1443 1444 sdom = AF_UNSPEC; 1445 #ifdef WITH_INET6 1446 if (sdom == AF_UNSPEC && feature_present("inet6")) 1447 sdom = AF_INET6; 1448 #endif 1449 #ifdef WITH_INET 1450 if (sdom == AF_UNSPEC && feature_present("inet")) 1451 sdom = AF_INET; 1452 #endif 1453 if (sdom == AF_UNSPEC) 1454 sdom = AF_LINK; 1455 1456 return (sdom); 1457 } 1458 1459 int 1460 get_query_socket(void) 1461 { 1462 static int s = -1; 1463 1464 if (s == -1) { 1465 if ((s = socket(get_socket_domain(), SOCK_DGRAM, 0)) == -1) 1466 err(1, "socket"); 1467 } 1468 1469 return (s); 1470 } 1471 1472 /* 1473 * Returns the response len if the name is a group, otherwise returns 0. 1474 */ 1475 static int 1476 is_a_group(char *name) 1477 { 1478 ENTRY item; 1479 ENTRY *ret_item; 1480 1481 item.key = name; 1482 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) 1483 return (0); 1484 1485 return (*(int *)ret_item->data); 1486 } 1487 1488 struct node_host * 1489 ifa_exists(char *ifa_name) 1490 { 1491 struct node_host *n; 1492 1493 if (iftab == NULL) 1494 ifa_load(); 1495 1496 /* check whether this is a group */ 1497 if (is_a_group(ifa_name)) { 1498 /* fake a node_host */ 1499 if ((n = calloc(1, sizeof(*n))) == NULL) 1500 err(1, "calloc"); 1501 if ((n->ifname = strdup(ifa_name)) == NULL) 1502 err(1, "strdup"); 1503 return (n); 1504 } 1505 1506 for (n = iftab; n; n = n->next) { 1507 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1508 return (n); 1509 } 1510 1511 return (NULL); 1512 } 1513 1514 struct node_host * 1515 ifa_grouplookup(char *ifa_name, int flags) 1516 { 1517 struct ifg_req *ifg; 1518 struct ifgroupreq ifgr; 1519 int s, len; 1520 struct node_host *n, *h = NULL; 1521 1522 s = get_query_socket(); 1523 len = is_a_group(ifa_name); 1524 if (len == 0) 1525 return (NULL); 1526 bzero(&ifgr, sizeof(ifgr)); 1527 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1528 ifgr.ifgr_len = len; 1529 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1530 err(1, "calloc"); 1531 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1532 err(1, "SIOCGIFGMEMB"); 1533 1534 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1535 ifg++) { 1536 len -= sizeof(struct ifg_req); 1537 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1538 continue; 1539 if (h == NULL) 1540 h = n; 1541 else { 1542 h->tail->next = n; 1543 h->tail = n->tail; 1544 } 1545 } 1546 free(ifgr.ifgr_groups); 1547 1548 return (h); 1549 } 1550 1551 struct node_host * 1552 ifa_lookup(char *ifa_name, int flags) 1553 { 1554 struct node_host *p = NULL, *h = NULL, *n = NULL; 1555 int got4 = 0, got6 = 0; 1556 const char *last_if = NULL; 1557 1558 /* first load iftab and isgroup_map */ 1559 if (iftab == NULL) 1560 ifa_load(); 1561 1562 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1563 return (h); 1564 1565 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1566 ifa_name = NULL; 1567 1568 for (p = iftab; p; p = p->next) { 1569 if (ifa_skip_if(ifa_name, p)) 1570 continue; 1571 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1572 continue; 1573 if ((flags & PFI_AFLAG_BROADCAST) && 1574 !(p->ifa_flags & IFF_BROADCAST)) 1575 continue; 1576 if ((flags & PFI_AFLAG_PEER) && 1577 !(p->ifa_flags & IFF_POINTOPOINT)) 1578 continue; 1579 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1580 continue; 1581 if (last_if == NULL || strcmp(last_if, p->ifname)) 1582 got4 = got6 = 0; 1583 last_if = p->ifname; 1584 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1585 continue; 1586 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && 1587 IN6_IS_ADDR_LINKLOCAL(&p->addr.v.a.addr.v6)) 1588 continue; 1589 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1590 continue; 1591 if (p->af == AF_INET) 1592 got4 = 1; 1593 else 1594 got6 = 1; 1595 n = calloc(1, sizeof(struct node_host)); 1596 if (n == NULL) 1597 err(1, "address: calloc"); 1598 n->af = p->af; 1599 if (flags & PFI_AFLAG_BROADCAST) 1600 memcpy(&n->addr.v.a.addr, &p->bcast, 1601 sizeof(struct pf_addr)); 1602 else if (flags & PFI_AFLAG_PEER) 1603 memcpy(&n->addr.v.a.addr, &p->peer, 1604 sizeof(struct pf_addr)); 1605 else 1606 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1607 sizeof(struct pf_addr)); 1608 if (flags & PFI_AFLAG_NETWORK) 1609 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af)); 1610 else { 1611 if (n->af == AF_INET) { 1612 if (p->ifa_flags & IFF_LOOPBACK && 1613 p->ifa_flags & IFF_LINK1) 1614 memcpy(&n->addr.v.a.mask, 1615 &p->addr.v.a.mask, 1616 sizeof(struct pf_addr)); 1617 else 1618 set_ipmask(n, 32); 1619 } else 1620 set_ipmask(n, 128); 1621 } 1622 n->ifindex = p->ifindex; 1623 n->ifname = strdup(p->ifname); 1624 1625 n->next = NULL; 1626 n->tail = n; 1627 if (h == NULL) 1628 h = n; 1629 else { 1630 h->tail->next = n; 1631 h->tail = n; 1632 } 1633 } 1634 return (h); 1635 } 1636 1637 int 1638 ifa_skip_if(const char *filter, struct node_host *p) 1639 { 1640 int n; 1641 1642 if (p->af != AF_INET && p->af != AF_INET6) 1643 return (1); 1644 if (filter == NULL || !*filter) 1645 return (0); 1646 if (!strcmp(p->ifname, filter)) 1647 return (0); /* exact match */ 1648 n = strlen(filter); 1649 if (n < 1 || n >= IFNAMSIZ) 1650 return (1); /* sanity check */ 1651 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1652 return (1); /* only do exact match in that case */ 1653 if (strncmp(p->ifname, filter, n)) 1654 return (1); /* prefix doesn't match */ 1655 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1656 } 1657 1658 1659 struct node_host * 1660 host(const char *s) 1661 { 1662 struct node_host *h = NULL; 1663 int mask, v4mask, v6mask, cont = 1; 1664 char *p, *q, *ps; 1665 1666 if ((p = strrchr(s, '/')) != NULL) { 1667 mask = strtol(p+1, &q, 0); 1668 if (!q || *q || mask > 128 || q == (p+1)) { 1669 fprintf(stderr, "invalid netmask '%s'\n", p); 1670 return (NULL); 1671 } 1672 if ((ps = malloc(strlen(s) - strlen(p) + 1)) == NULL) 1673 err(1, "host: malloc"); 1674 strlcpy(ps, s, strlen(s) - strlen(p) + 1); 1675 v4mask = v6mask = mask; 1676 } else { 1677 if ((ps = strdup(s)) == NULL) 1678 err(1, "host: strdup"); 1679 v4mask = 32; 1680 v6mask = 128; 1681 mask = -1; 1682 } 1683 1684 /* IPv4 address? */ 1685 if (cont && (h = host_v4(s, mask)) != NULL) 1686 cont = 0; 1687 1688 /* IPv6 address? */ 1689 if (cont && (h = host_v6(ps, v6mask)) != NULL) 1690 cont = 0; 1691 1692 /* interface with this name exists? */ 1693 /* expensive with thousands of interfaces - prioritze IPv4/6 check */ 1694 if (cont && (h = host_if(ps, mask)) != NULL) 1695 cont = 0; 1696 1697 /* dns lookup */ 1698 if (cont && (h = host_dns(ps, v4mask, v6mask)) != NULL) 1699 cont = 0; 1700 free(ps); 1701 1702 if (h == NULL || cont == 1) { 1703 fprintf(stderr, "no IP address found for %s\n", s); 1704 return (NULL); 1705 } 1706 return (h); 1707 } 1708 1709 struct node_host * 1710 host_if(const char *s, int mask) 1711 { 1712 struct node_host *n, *h = NULL; 1713 char *p, *ps; 1714 int flags = 0; 1715 1716 if ((ps = strdup(s)) == NULL) 1717 err(1, "host_if: strdup"); 1718 while ((p = strrchr(ps, ':')) != NULL) { 1719 if (!strcmp(p+1, "network")) 1720 flags |= PFI_AFLAG_NETWORK; 1721 else if (!strcmp(p+1, "broadcast")) 1722 flags |= PFI_AFLAG_BROADCAST; 1723 else if (!strcmp(p+1, "peer")) 1724 flags |= PFI_AFLAG_PEER; 1725 else if (!strcmp(p+1, "0")) 1726 flags |= PFI_AFLAG_NOALIAS; 1727 else { 1728 free(ps); 1729 return (NULL); 1730 } 1731 *p = '\0'; 1732 } 1733 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1734 fprintf(stderr, "illegal combination of interface modifiers\n"); 1735 free(ps); 1736 return (NULL); 1737 } 1738 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1739 fprintf(stderr, "network or broadcast lookup, but " 1740 "extra netmask given\n"); 1741 free(ps); 1742 return (NULL); 1743 } 1744 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1745 /* interface with this name exists */ 1746 h = ifa_lookup(ps, flags); 1747 for (n = h; n != NULL && mask > -1; n = n->next) 1748 set_ipmask(n, mask); 1749 } 1750 1751 free(ps); 1752 return (h); 1753 } 1754 1755 struct node_host * 1756 host_v4(const char *s, int mask) 1757 { 1758 struct node_host *h = NULL; 1759 struct in_addr ina; 1760 int bits = 32; 1761 1762 memset(&ina, 0, sizeof(struct in_addr)); 1763 if (strrchr(s, '/') != NULL) { 1764 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1) 1765 return (NULL); 1766 } else { 1767 if (inet_pton(AF_INET, s, &ina) != 1) 1768 return (NULL); 1769 } 1770 1771 h = calloc(1, sizeof(struct node_host)); 1772 if (h == NULL) 1773 err(1, "address: calloc"); 1774 h->ifname = NULL; 1775 h->af = AF_INET; 1776 h->addr.v.a.addr.addr32[0] = ina.s_addr; 1777 set_ipmask(h, bits); 1778 h->next = NULL; 1779 h->tail = h; 1780 1781 return (h); 1782 } 1783 1784 struct node_host * 1785 host_v6(const char *s, int mask) 1786 { 1787 struct addrinfo hints, *res; 1788 struct node_host *h = NULL; 1789 1790 memset(&hints, 0, sizeof(hints)); 1791 hints.ai_family = AF_INET6; 1792 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1793 hints.ai_flags = AI_NUMERICHOST; 1794 if (getaddrinfo(s, "0", &hints, &res) == 0) { 1795 h = calloc(1, sizeof(struct node_host)); 1796 if (h == NULL) 1797 err(1, "address: calloc"); 1798 h->ifname = NULL; 1799 h->af = AF_INET6; 1800 memcpy(&h->addr.v.a.addr, 1801 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 1802 sizeof(h->addr.v.a.addr)); 1803 h->ifindex = 1804 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1805 set_ipmask(h, mask); 1806 freeaddrinfo(res); 1807 h->next = NULL; 1808 h->tail = h; 1809 } 1810 1811 return (h); 1812 } 1813 1814 struct node_host * 1815 host_dns(const char *s, int v4mask, int v6mask) 1816 { 1817 struct addrinfo hints, *res0, *res; 1818 struct node_host *n, *h = NULL; 1819 int error, noalias = 0; 1820 int got4 = 0, got6 = 0; 1821 char *p, *ps; 1822 1823 if ((ps = strdup(s)) == NULL) 1824 err(1, "host_dns: strdup"); 1825 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1826 noalias = 1; 1827 *p = '\0'; 1828 } 1829 memset(&hints, 0, sizeof(hints)); 1830 hints.ai_family = PF_UNSPEC; 1831 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1832 error = getaddrinfo(ps, NULL, &hints, &res0); 1833 if (error) { 1834 free(ps); 1835 return (h); 1836 } 1837 1838 for (res = res0; res; res = res->ai_next) { 1839 if (res->ai_family != AF_INET && 1840 res->ai_family != AF_INET6) 1841 continue; 1842 if (noalias) { 1843 if (res->ai_family == AF_INET) { 1844 if (got4) 1845 continue; 1846 got4 = 1; 1847 } else { 1848 if (got6) 1849 continue; 1850 got6 = 1; 1851 } 1852 } 1853 n = calloc(1, sizeof(struct node_host)); 1854 if (n == NULL) 1855 err(1, "host_dns: calloc"); 1856 n->ifname = NULL; 1857 n->af = res->ai_family; 1858 if (res->ai_family == AF_INET) { 1859 memcpy(&n->addr.v.a.addr, 1860 &((struct sockaddr_in *) 1861 res->ai_addr)->sin_addr.s_addr, 1862 sizeof(struct in_addr)); 1863 set_ipmask(n, v4mask); 1864 } else { 1865 memcpy(&n->addr.v.a.addr, 1866 &((struct sockaddr_in6 *) 1867 res->ai_addr)->sin6_addr.s6_addr, 1868 sizeof(struct in6_addr)); 1869 n->ifindex = 1870 ((struct sockaddr_in6 *) 1871 res->ai_addr)->sin6_scope_id; 1872 set_ipmask(n, v6mask); 1873 } 1874 n->next = NULL; 1875 n->tail = n; 1876 if (h == NULL) 1877 h = n; 1878 else { 1879 h->tail->next = n; 1880 h->tail = n; 1881 } 1882 } 1883 freeaddrinfo(res0); 1884 free(ps); 1885 1886 return (h); 1887 } 1888 1889 /* 1890 * convert a hostname to a list of addresses and put them in the given buffer. 1891 * test: 1892 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1893 */ 1894 int 1895 append_addr(struct pfr_buffer *b, char *s, int test) 1896 { 1897 char *r; 1898 struct node_host *h, *n; 1899 int rv, not = 0; 1900 1901 for (r = s; *r == '!'; r++) 1902 not = !not; 1903 if ((n = host(r)) == NULL) { 1904 errno = 0; 1905 return (-1); 1906 } 1907 rv = append_addr_host(b, n, test, not); 1908 do { 1909 h = n; 1910 n = n->next; 1911 free(h); 1912 } while (n != NULL); 1913 return (rv); 1914 } 1915 1916 /* 1917 * same as previous function, but with a pre-parsed input and the ability 1918 * to "negate" the result. Does not free the node_host list. 1919 * not: 1920 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1921 */ 1922 int 1923 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1924 { 1925 int bits; 1926 struct pfr_addr addr; 1927 1928 do { 1929 bzero(&addr, sizeof(addr)); 1930 addr.pfra_not = n->not ^ not; 1931 addr.pfra_af = n->af; 1932 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af); 1933 switch (n->af) { 1934 case AF_INET: 1935 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 1936 bits = 32; 1937 break; 1938 case AF_INET6: 1939 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 1940 sizeof(struct in6_addr)); 1941 bits = 128; 1942 break; 1943 default: 1944 errno = EINVAL; 1945 return (-1); 1946 } 1947 if ((test && (not || addr.pfra_net != bits)) || 1948 addr.pfra_net > bits) { 1949 errno = EINVAL; 1950 return (-1); 1951 } 1952 if (pfr_buf_add(b, &addr)) 1953 return (-1); 1954 } while ((n = n->next) != NULL); 1955 1956 return (0); 1957 } 1958 1959 int 1960 pfctl_add_trans(struct pfr_buffer *buf, int rs_num, const char *anchor) 1961 { 1962 struct pfioc_trans_e trans; 1963 1964 bzero(&trans, sizeof(trans)); 1965 trans.rs_num = rs_num; 1966 if (strlcpy(trans.anchor, anchor, 1967 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 1968 errx(1, "pfctl_add_trans: strlcpy"); 1969 1970 return pfr_buf_add(buf, &trans); 1971 } 1972 1973 u_int32_t 1974 pfctl_get_ticket(struct pfr_buffer *buf, int rs_num, const char *anchor) 1975 { 1976 struct pfioc_trans_e *p; 1977 1978 PFRB_FOREACH(p, buf) 1979 if (rs_num == p->rs_num && !strcmp(anchor, p->anchor)) 1980 return (p->ticket); 1981 errx(1, "pfctl_get_ticket: assertion failed"); 1982 } 1983 1984 int 1985 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 1986 { 1987 struct pfioc_trans trans; 1988 1989 bzero(&trans, sizeof(trans)); 1990 trans.size = buf->pfrb_size - from; 1991 trans.esize = sizeof(struct pfioc_trans_e); 1992 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 1993 return ioctl(dev, cmd, &trans); 1994 } 1995