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 "", "", "", "", "", "", "match" }; 749 750 if (rule_numbers) 751 printf("@%u ", r->nr); 752 753 printf("ether "); 754 if (anchor_call[0]) { 755 if (anchor_call[0] == '_') { 756 printf("anchor"); 757 } else 758 printf("anchor \"%s\"", anchor_call); 759 } else { 760 printf("%s", actiontypes[r->action]); 761 } 762 if (r->direction == PF_IN) 763 printf(" in"); 764 else if (r->direction == PF_OUT) 765 printf(" out"); 766 767 if (r->quick) 768 printf(" quick"); 769 if (r->ifname[0]) { 770 if (r->ifnot) 771 printf(" on ! %s", r->ifname); 772 else 773 printf(" on %s", r->ifname); 774 } 775 if (r->proto) 776 printf(" proto 0x%04x", r->proto); 777 778 if (r->src.isset) { 779 printf(" from "); 780 print_eth_addr(&r->src); 781 } 782 if (r->dst.isset) { 783 printf(" to "); 784 print_eth_addr(&r->dst); 785 } 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 if (r->qname[0]) 791 printf(" queue %s", r->qname); 792 if (r->tagname[0]) 793 printf(" tag %s", r->tagname); 794 if (r->dnpipe) 795 printf(" %s %d", 796 r->dnflags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 797 r->dnpipe); 798 } 799 800 void 801 print_rule(struct pfctl_rule *r, const char *anchor_call, int verbose, int numeric) 802 { 803 static const char *actiontypes[] = { "pass", "block", "scrub", 804 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr" }; 805 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 806 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 807 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 808 int i, opts; 809 810 if (verbose) 811 printf("@%d ", r->nr); 812 if (r->action == PF_MATCH) 813 printf("match"); 814 else if (r->action > PF_NORDR) 815 printf("action(%d)", r->action); 816 else if (anchor_call[0]) { 817 if (anchor_call[0] == '_') { 818 printf("%s", anchortypes[r->action]); 819 } else 820 printf("%s \"%s\"", anchortypes[r->action], 821 anchor_call); 822 } else { 823 printf("%s", actiontypes[r->action]); 824 if (r->natpass) 825 printf(" pass"); 826 } 827 if (r->action == PF_DROP) { 828 if (r->rule_flag & PFRULE_RETURN) 829 printf(" return"); 830 else if (r->rule_flag & PFRULE_RETURNRST) { 831 if (!r->return_ttl) 832 printf(" return-rst"); 833 else 834 printf(" return-rst(ttl %d)", r->return_ttl); 835 } else if (r->rule_flag & PFRULE_RETURNICMP) { 836 const struct icmpcodeent *ic, *ic6; 837 838 ic = geticmpcodebynumber(r->return_icmp >> 8, 839 r->return_icmp & 255, AF_INET); 840 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 841 r->return_icmp6 & 255, AF_INET6); 842 843 switch (r->af) { 844 case AF_INET: 845 printf(" return-icmp"); 846 if (ic == NULL) 847 printf("(%u)", r->return_icmp & 255); 848 else 849 printf("(%s)", ic->name); 850 break; 851 case AF_INET6: 852 printf(" return-icmp6"); 853 if (ic6 == NULL) 854 printf("(%u)", r->return_icmp6 & 255); 855 else 856 printf("(%s)", ic6->name); 857 break; 858 default: 859 printf(" return-icmp"); 860 if (ic == NULL) 861 printf("(%u, ", r->return_icmp & 255); 862 else 863 printf("(%s, ", ic->name); 864 if (ic6 == NULL) 865 printf("%u)", r->return_icmp6 & 255); 866 else 867 printf("%s)", ic6->name); 868 break; 869 } 870 } else 871 printf(" drop"); 872 } 873 if (r->direction == PF_IN) 874 printf(" in"); 875 else if (r->direction == PF_OUT) 876 printf(" out"); 877 if (r->log) { 878 printf(" log"); 879 if (r->log & ~PF_LOG || r->logif) { 880 int count = 0; 881 882 printf(" ("); 883 if (r->log & PF_LOG_ALL) 884 printf("%sall", count++ ? ", " : ""); 885 if (r->log & PF_LOG_SOCKET_LOOKUP) 886 printf("%suser", count++ ? ", " : ""); 887 if (r->logif) 888 printf("%sto pflog%u", count++ ? ", " : "", 889 r->logif); 890 printf(")"); 891 } 892 } 893 if (r->quick) 894 printf(" quick"); 895 if (r->ifname[0]) { 896 if (r->ifnot) 897 printf(" on ! %s", r->ifname); 898 else 899 printf(" on %s", r->ifname); 900 } 901 if (r->rt) { 902 if (r->rt == PF_ROUTETO) 903 printf(" route-to"); 904 else if (r->rt == PF_REPLYTO) 905 printf(" reply-to"); 906 else if (r->rt == PF_DUPTO) 907 printf(" dup-to"); 908 printf(" "); 909 print_pool(&r->rpool, 0, 0, r->af, PF_PASS); 910 } 911 if (r->af) { 912 if (r->af == AF_INET) 913 printf(" inet"); 914 else 915 printf(" inet6"); 916 } 917 if (r->proto) { 918 const char *protoname; 919 920 if ((protoname = pfctl_proto2name(r->proto)) != NULL) 921 printf(" proto %s", protoname); 922 else 923 printf(" proto %u", r->proto); 924 } 925 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 926 verbose, numeric); 927 if (r->uid.op) 928 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 929 UID_MAX); 930 if (r->gid.op) 931 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 932 GID_MAX); 933 if (r->flags || r->flagset) { 934 printf(" flags "); 935 print_flags(r->flags); 936 printf("/"); 937 print_flags(r->flagset); 938 } else if (r->action == PF_PASS && 939 (!r->proto || r->proto == IPPROTO_TCP) && 940 !(r->rule_flag & PFRULE_FRAGMENT) && 941 !anchor_call[0] && r->keep_state) 942 printf(" flags any"); 943 if (r->type) { 944 const struct icmptypeent *it; 945 946 it = geticmptypebynumber(r->type-1, r->af); 947 if (r->af != AF_INET6) 948 printf(" icmp-type"); 949 else 950 printf(" icmp6-type"); 951 if (it != NULL) 952 printf(" %s", it->name); 953 else 954 printf(" %u", r->type-1); 955 if (r->code) { 956 const struct icmpcodeent *ic; 957 958 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 959 if (ic != NULL) 960 printf(" code %s", ic->name); 961 else 962 printf(" code %u", r->code-1); 963 } 964 } 965 if (r->tos) 966 printf(" tos 0x%2.2x", r->tos); 967 if (r->prio) 968 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio); 969 if (r->scrub_flags & PFSTATE_SETMASK) { 970 char *comma = ""; 971 printf(" set ("); 972 if (r->scrub_flags & PFSTATE_SETPRIO) { 973 if (r->set_prio[0] == r->set_prio[1]) 974 printf("%s prio %u", comma, r->set_prio[0]); 975 else 976 printf("%s prio(%u, %u)", comma, r->set_prio[0], 977 r->set_prio[1]); 978 comma = ","; 979 } 980 printf(" )"); 981 } 982 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 983 printf(" no state"); 984 else if (r->keep_state == PF_STATE_NORMAL) 985 printf(" keep state"); 986 else if (r->keep_state == PF_STATE_MODULATE) 987 printf(" modulate state"); 988 else if (r->keep_state == PF_STATE_SYNPROXY) 989 printf(" synproxy state"); 990 if (r->prob) { 991 char buf[20]; 992 993 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 994 for (i = strlen(buf)-1; i > 0; i--) { 995 if (buf[i] == '0') 996 buf[i] = '\0'; 997 else { 998 if (buf[i] == '.') 999 buf[i] = '\0'; 1000 break; 1001 } 1002 } 1003 printf(" probability %s%%", buf); 1004 } 1005 opts = 0; 1006 if (r->max_states || r->max_src_nodes || r->max_src_states) 1007 opts = 1; 1008 if (r->rule_flag & PFRULE_NOSYNC) 1009 opts = 1; 1010 if (r->rule_flag & PFRULE_SRCTRACK) 1011 opts = 1; 1012 if (r->rule_flag & PFRULE_IFBOUND) 1013 opts = 1; 1014 if (r->rule_flag & PFRULE_STATESLOPPY) 1015 opts = 1; 1016 for (i = 0; !opts && i < PFTM_MAX; ++i) 1017 if (r->timeout[i]) 1018 opts = 1; 1019 if (opts) { 1020 printf(" ("); 1021 if (r->max_states) { 1022 printf("max %u", r->max_states); 1023 opts = 0; 1024 } 1025 if (r->rule_flag & PFRULE_NOSYNC) { 1026 if (!opts) 1027 printf(", "); 1028 printf("no-sync"); 1029 opts = 0; 1030 } 1031 if (r->rule_flag & PFRULE_SRCTRACK) { 1032 if (!opts) 1033 printf(", "); 1034 printf("source-track"); 1035 if (r->rule_flag & PFRULE_RULESRCTRACK) 1036 printf(" rule"); 1037 else 1038 printf(" global"); 1039 opts = 0; 1040 } 1041 if (r->max_src_states) { 1042 if (!opts) 1043 printf(", "); 1044 printf("max-src-states %u", r->max_src_states); 1045 opts = 0; 1046 } 1047 if (r->max_src_conn) { 1048 if (!opts) 1049 printf(", "); 1050 printf("max-src-conn %u", r->max_src_conn); 1051 opts = 0; 1052 } 1053 if (r->max_src_conn_rate.limit) { 1054 if (!opts) 1055 printf(", "); 1056 printf("max-src-conn-rate %u/%u", 1057 r->max_src_conn_rate.limit, 1058 r->max_src_conn_rate.seconds); 1059 opts = 0; 1060 } 1061 if (r->max_src_nodes) { 1062 if (!opts) 1063 printf(", "); 1064 printf("max-src-nodes %u", r->max_src_nodes); 1065 opts = 0; 1066 } 1067 if (r->overload_tblname[0]) { 1068 if (!opts) 1069 printf(", "); 1070 printf("overload <%s>", r->overload_tblname); 1071 if (r->flush) 1072 printf(" flush"); 1073 if (r->flush & PF_FLUSH_GLOBAL) 1074 printf(" global"); 1075 } 1076 if (r->rule_flag & PFRULE_IFBOUND) { 1077 if (!opts) 1078 printf(", "); 1079 printf("if-bound"); 1080 opts = 0; 1081 } 1082 if (r->rule_flag & PFRULE_STATESLOPPY) { 1083 if (!opts) 1084 printf(", "); 1085 printf("sloppy"); 1086 opts = 0; 1087 } 1088 for (i = 0; i < PFTM_MAX; ++i) 1089 if (r->timeout[i]) { 1090 int j; 1091 1092 if (!opts) 1093 printf(", "); 1094 opts = 0; 1095 for (j = 0; pf_timeouts[j].name != NULL; 1096 ++j) 1097 if (pf_timeouts[j].timeout == i) 1098 break; 1099 printf("%s %u", pf_timeouts[j].name == NULL ? 1100 "inv.timeout" : pf_timeouts[j].name, 1101 r->timeout[i]); 1102 } 1103 printf(")"); 1104 } 1105 if (r->rule_flag & PFRULE_FRAGMENT) 1106 printf(" fragment"); 1107 if (r->rule_flag & PFRULE_NODF) 1108 printf(" no-df"); 1109 if (r->rule_flag & PFRULE_RANDOMID) 1110 printf(" random-id"); 1111 if (r->min_ttl) 1112 printf(" min-ttl %d", r->min_ttl); 1113 if (r->max_mss) 1114 printf(" max-mss %d", r->max_mss); 1115 if (r->rule_flag & PFRULE_SET_TOS) 1116 printf(" set-tos 0x%2.2x", r->set_tos); 1117 if (r->allow_opts) 1118 printf(" allow-opts"); 1119 if (r->action == PF_SCRUB) { 1120 if (r->rule_flag & PFRULE_REASSEMBLE_TCP) 1121 printf(" reassemble tcp"); 1122 1123 printf(" fragment reassemble"); 1124 } 1125 i = 0; 1126 while (r->label[i][0]) 1127 printf(" label \"%s\"", r->label[i++]); 1128 if (r->ridentifier) 1129 printf(" ridentifier %u", r->ridentifier); 1130 /* Only dnrpipe as we might do (0, 42) to only queue return traffic. */ 1131 if (r->dnrpipe) 1132 printf(" %s(%d, %d)", 1133 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1134 r->dnpipe, r->dnrpipe); 1135 else if (r->dnpipe) 1136 printf(" %s %d", 1137 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1138 r->dnpipe); 1139 if (r->qname[0] && r->pqname[0]) 1140 printf(" queue(%s, %s)", r->qname, r->pqname); 1141 else if (r->qname[0]) 1142 printf(" queue %s", r->qname); 1143 if (r->tagname[0]) 1144 printf(" tag %s", r->tagname); 1145 if (r->match_tagname[0]) { 1146 if (r->match_tag_not) 1147 printf(" !"); 1148 printf(" tagged %s", r->match_tagname); 1149 } 1150 if (r->rtableid != -1) 1151 printf(" rtable %u", r->rtableid); 1152 if (r->divert.port) { 1153 #ifdef __FreeBSD__ 1154 printf(" divert-to %u", ntohs(r->divert.port)); 1155 #else 1156 if (PF_AZERO(&r->divert.addr, r->af)) { 1157 printf(" divert-reply"); 1158 } else { 1159 /* XXX cut&paste from print_addr */ 1160 char buf[48]; 1161 1162 printf(" divert-to "); 1163 if (inet_ntop(r->af, &r->divert.addr, buf, 1164 sizeof(buf)) == NULL) 1165 printf("?"); 1166 else 1167 printf("%s", buf); 1168 printf(" port %u", ntohs(r->divert.port)); 1169 } 1170 #endif 1171 } 1172 if (!anchor_call[0] && (r->action == PF_NAT || 1173 r->action == PF_BINAT || r->action == PF_RDR)) { 1174 printf(" -> "); 1175 print_pool(&r->rpool, r->rpool.proxy_port[0], 1176 r->rpool.proxy_port[1], r->af, r->action); 1177 } 1178 } 1179 1180 void 1181 print_tabledef(const char *name, int flags, int addrs, 1182 struct node_tinithead *nodes) 1183 { 1184 struct node_tinit *ti, *nti; 1185 struct node_host *h; 1186 1187 printf("table <%s>", name); 1188 if (flags & PFR_TFLAG_CONST) 1189 printf(" const"); 1190 if (flags & PFR_TFLAG_PERSIST) 1191 printf(" persist"); 1192 if (flags & PFR_TFLAG_COUNTERS) 1193 printf(" counters"); 1194 SIMPLEQ_FOREACH(ti, nodes, entries) { 1195 if (ti->file) { 1196 printf(" file \"%s\"", ti->file); 1197 continue; 1198 } 1199 printf(" {"); 1200 for (;;) { 1201 for (h = ti->host; h != NULL; h = h->next) { 1202 printf(h->not ? " !" : " "); 1203 print_addr(&h->addr, h->af, 0); 1204 } 1205 nti = SIMPLEQ_NEXT(ti, entries); 1206 if (nti != NULL && nti->file == NULL) 1207 ti = nti; /* merge lists */ 1208 else 1209 break; 1210 } 1211 printf(" }"); 1212 } 1213 if (addrs && SIMPLEQ_EMPTY(nodes)) 1214 printf(" { }"); 1215 printf("\n"); 1216 } 1217 1218 int 1219 parse_flags(char *s) 1220 { 1221 char *p, *q; 1222 u_int8_t f = 0; 1223 1224 for (p = s; *p; p++) { 1225 if ((q = strchr(tcpflags, *p)) == NULL) 1226 return -1; 1227 else 1228 f |= 1 << (q - tcpflags); 1229 } 1230 return (f ? f : PF_TH_ALL); 1231 } 1232 1233 void 1234 set_ipmask(struct node_host *h, u_int8_t b) 1235 { 1236 struct pf_addr *m, *n; 1237 int i, j = 0; 1238 1239 m = &h->addr.v.a.mask; 1240 memset(m, 0, sizeof(*m)); 1241 1242 while (b >= 32) { 1243 m->addr32[j++] = 0xffffffff; 1244 b -= 32; 1245 } 1246 for (i = 31; i > 31-b; --i) 1247 m->addr32[j] |= (1 << i); 1248 if (b) 1249 m->addr32[j] = htonl(m->addr32[j]); 1250 1251 /* Mask off bits of the address that will never be used. */ 1252 n = &h->addr.v.a.addr; 1253 if (h->addr.type == PF_ADDR_ADDRMASK) 1254 for (i = 0; i < 4; i++) 1255 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1256 } 1257 1258 int 1259 check_netmask(struct node_host *h, sa_family_t af) 1260 { 1261 struct node_host *n = NULL; 1262 struct pf_addr *m; 1263 1264 for (n = h; n != NULL; n = n->next) { 1265 if (h->addr.type == PF_ADDR_TABLE) 1266 continue; 1267 m = &h->addr.v.a.mask; 1268 /* fix up netmask for dynaddr */ 1269 if (af == AF_INET && h->addr.type == PF_ADDR_DYNIFTL && 1270 unmask(m, AF_INET6) > 32) 1271 set_ipmask(n, 32); 1272 /* netmasks > 32 bit are invalid on v4 */ 1273 if (af == AF_INET && 1274 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1275 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1276 unmask(m, AF_INET6)); 1277 return (1); 1278 } 1279 } 1280 return (0); 1281 } 1282 1283 /* interface lookup routines */ 1284 1285 static struct node_host *iftab; 1286 1287 /* 1288 * Retrieve the list of groups this interface is a member of and make sure 1289 * each group is in the group map. 1290 */ 1291 static void 1292 ifa_add_groups_to_map(char *ifa_name) 1293 { 1294 int s, len; 1295 struct ifgroupreq ifgr; 1296 struct ifg_req *ifg; 1297 1298 s = get_query_socket(); 1299 1300 /* Get size of group list for this interface */ 1301 memset(&ifgr, 0, sizeof(ifgr)); 1302 strlcpy(ifgr.ifgr_name, ifa_name, IFNAMSIZ); 1303 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1304 err(1, "SIOCGIFGROUP"); 1305 1306 /* Retrieve group list for this interface */ 1307 len = ifgr.ifgr_len; 1308 ifgr.ifgr_groups = 1309 (struct ifg_req *)calloc(len / sizeof(struct ifg_req), 1310 sizeof(struct ifg_req)); 1311 if (ifgr.ifgr_groups == NULL) 1312 err(1, "calloc"); 1313 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1314 err(1, "SIOCGIFGROUP"); 1315 1316 ifg = ifgr.ifgr_groups; 1317 for (; ifg && len >= sizeof(struct ifg_req); ifg++) { 1318 len -= sizeof(struct ifg_req); 1319 if (strcmp(ifg->ifgrq_group, "all")) { 1320 ENTRY item; 1321 ENTRY *ret_item; 1322 int *answer; 1323 1324 item.key = ifg->ifgrq_group; 1325 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) { 1326 struct ifgroupreq ifgr2; 1327 1328 /* Don't know the answer yet */ 1329 if ((answer = malloc(sizeof(int))) == NULL) 1330 err(1, "malloc"); 1331 1332 bzero(&ifgr2, sizeof(ifgr2)); 1333 strlcpy(ifgr2.ifgr_name, ifg->ifgrq_group, 1334 sizeof(ifgr2.ifgr_name)); 1335 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr2) == 0) 1336 *answer = ifgr2.ifgr_len; 1337 else 1338 *answer = 0; 1339 1340 item.key = strdup(ifg->ifgrq_group); 1341 item.data = answer; 1342 if (hsearch_r(item, ENTER, &ret_item, 1343 &isgroup_map) == 0) 1344 err(1, "interface group query response" 1345 " map insert"); 1346 } 1347 } 1348 } 1349 free(ifgr.ifgr_groups); 1350 } 1351 1352 void 1353 ifa_load(void) 1354 { 1355 struct ifaddrs *ifap, *ifa; 1356 struct node_host *n = NULL, *h = NULL; 1357 1358 if (getifaddrs(&ifap) < 0) 1359 err(1, "getifaddrs"); 1360 1361 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1362 if (!(ifa->ifa_addr->sa_family == AF_INET || 1363 ifa->ifa_addr->sa_family == AF_INET6 || 1364 ifa->ifa_addr->sa_family == AF_LINK)) 1365 continue; 1366 n = calloc(1, sizeof(struct node_host)); 1367 if (n == NULL) 1368 err(1, "address: calloc"); 1369 n->af = ifa->ifa_addr->sa_family; 1370 n->ifa_flags = ifa->ifa_flags; 1371 #ifdef __KAME__ 1372 if (n->af == AF_INET6 && 1373 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1374 ifa->ifa_addr)->sin6_addr) && 1375 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1376 0) { 1377 struct sockaddr_in6 *sin6; 1378 1379 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1380 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1381 sin6->sin6_addr.s6_addr[3]; 1382 sin6->sin6_addr.s6_addr[2] = 0; 1383 sin6->sin6_addr.s6_addr[3] = 0; 1384 } 1385 #endif 1386 n->ifindex = 0; 1387 if (n->af == AF_INET) { 1388 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *) 1389 ifa->ifa_addr)->sin_addr.s_addr, 1390 sizeof(struct in_addr)); 1391 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *) 1392 ifa->ifa_netmask)->sin_addr.s_addr, 1393 sizeof(struct in_addr)); 1394 if (ifa->ifa_broadaddr != NULL) 1395 memcpy(&n->bcast, &((struct sockaddr_in *) 1396 ifa->ifa_broadaddr)->sin_addr.s_addr, 1397 sizeof(struct in_addr)); 1398 if (ifa->ifa_dstaddr != NULL) 1399 memcpy(&n->peer, &((struct sockaddr_in *) 1400 ifa->ifa_dstaddr)->sin_addr.s_addr, 1401 sizeof(struct in_addr)); 1402 } else if (n->af == AF_INET6) { 1403 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *) 1404 ifa->ifa_addr)->sin6_addr.s6_addr, 1405 sizeof(struct in6_addr)); 1406 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *) 1407 ifa->ifa_netmask)->sin6_addr.s6_addr, 1408 sizeof(struct in6_addr)); 1409 if (ifa->ifa_broadaddr != NULL) 1410 memcpy(&n->bcast, &((struct sockaddr_in6 *) 1411 ifa->ifa_broadaddr)->sin6_addr.s6_addr, 1412 sizeof(struct in6_addr)); 1413 if (ifa->ifa_dstaddr != NULL) 1414 memcpy(&n->peer, &((struct sockaddr_in6 *) 1415 ifa->ifa_dstaddr)->sin6_addr.s6_addr, 1416 sizeof(struct in6_addr)); 1417 n->ifindex = ((struct sockaddr_in6 *) 1418 ifa->ifa_addr)->sin6_scope_id; 1419 } else if (n->af == AF_LINK) { 1420 ifa_add_groups_to_map(ifa->ifa_name); 1421 } 1422 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1423 err(1, "ifa_load: strdup"); 1424 n->next = NULL; 1425 n->tail = n; 1426 if (h == NULL) 1427 h = n; 1428 else { 1429 h->tail->next = n; 1430 h->tail = n; 1431 } 1432 } 1433 1434 iftab = h; 1435 freeifaddrs(ifap); 1436 } 1437 1438 static int 1439 get_socket_domain(void) 1440 { 1441 int sdom; 1442 1443 sdom = AF_UNSPEC; 1444 #ifdef WITH_INET6 1445 if (sdom == AF_UNSPEC && feature_present("inet6")) 1446 sdom = AF_INET6; 1447 #endif 1448 #ifdef WITH_INET 1449 if (sdom == AF_UNSPEC && feature_present("inet")) 1450 sdom = AF_INET; 1451 #endif 1452 if (sdom == AF_UNSPEC) 1453 sdom = AF_LINK; 1454 1455 return (sdom); 1456 } 1457 1458 int 1459 get_query_socket(void) 1460 { 1461 static int s = -1; 1462 1463 if (s == -1) { 1464 if ((s = socket(get_socket_domain(), SOCK_DGRAM, 0)) == -1) 1465 err(1, "socket"); 1466 } 1467 1468 return (s); 1469 } 1470 1471 /* 1472 * Returns the response len if the name is a group, otherwise returns 0. 1473 */ 1474 static int 1475 is_a_group(char *name) 1476 { 1477 ENTRY item; 1478 ENTRY *ret_item; 1479 1480 item.key = name; 1481 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) 1482 return (0); 1483 1484 return (*(int *)ret_item->data); 1485 } 1486 1487 struct node_host * 1488 ifa_exists(char *ifa_name) 1489 { 1490 struct node_host *n; 1491 1492 if (iftab == NULL) 1493 ifa_load(); 1494 1495 /* check whether this is a group */ 1496 if (is_a_group(ifa_name)) { 1497 /* fake a node_host */ 1498 if ((n = calloc(1, sizeof(*n))) == NULL) 1499 err(1, "calloc"); 1500 if ((n->ifname = strdup(ifa_name)) == NULL) 1501 err(1, "strdup"); 1502 return (n); 1503 } 1504 1505 for (n = iftab; n; n = n->next) { 1506 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1507 return (n); 1508 } 1509 1510 return (NULL); 1511 } 1512 1513 struct node_host * 1514 ifa_grouplookup(char *ifa_name, int flags) 1515 { 1516 struct ifg_req *ifg; 1517 struct ifgroupreq ifgr; 1518 int s, len; 1519 struct node_host *n, *h = NULL; 1520 1521 s = get_query_socket(); 1522 len = is_a_group(ifa_name); 1523 if (len == 0) 1524 return (NULL); 1525 bzero(&ifgr, sizeof(ifgr)); 1526 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1527 ifgr.ifgr_len = len; 1528 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1529 err(1, "calloc"); 1530 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1531 err(1, "SIOCGIFGMEMB"); 1532 1533 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1534 ifg++) { 1535 len -= sizeof(struct ifg_req); 1536 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1537 continue; 1538 if (h == NULL) 1539 h = n; 1540 else { 1541 h->tail->next = n; 1542 h->tail = n->tail; 1543 } 1544 } 1545 free(ifgr.ifgr_groups); 1546 1547 return (h); 1548 } 1549 1550 struct node_host * 1551 ifa_lookup(char *ifa_name, int flags) 1552 { 1553 struct node_host *p = NULL, *h = NULL, *n = NULL; 1554 int got4 = 0, got6 = 0; 1555 const char *last_if = NULL; 1556 1557 /* first load iftab and isgroup_map */ 1558 if (iftab == NULL) 1559 ifa_load(); 1560 1561 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1562 return (h); 1563 1564 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1565 ifa_name = NULL; 1566 1567 for (p = iftab; p; p = p->next) { 1568 if (ifa_skip_if(ifa_name, p)) 1569 continue; 1570 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1571 continue; 1572 if ((flags & PFI_AFLAG_BROADCAST) && 1573 !(p->ifa_flags & IFF_BROADCAST)) 1574 continue; 1575 if ((flags & PFI_AFLAG_PEER) && 1576 !(p->ifa_flags & IFF_POINTOPOINT)) 1577 continue; 1578 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1579 continue; 1580 if (last_if == NULL || strcmp(last_if, p->ifname)) 1581 got4 = got6 = 0; 1582 last_if = p->ifname; 1583 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1584 continue; 1585 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && 1586 IN6_IS_ADDR_LINKLOCAL(&p->addr.v.a.addr.v6)) 1587 continue; 1588 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1589 continue; 1590 if (p->af == AF_INET) 1591 got4 = 1; 1592 else 1593 got6 = 1; 1594 n = calloc(1, sizeof(struct node_host)); 1595 if (n == NULL) 1596 err(1, "address: calloc"); 1597 n->af = p->af; 1598 if (flags & PFI_AFLAG_BROADCAST) 1599 memcpy(&n->addr.v.a.addr, &p->bcast, 1600 sizeof(struct pf_addr)); 1601 else if (flags & PFI_AFLAG_PEER) 1602 memcpy(&n->addr.v.a.addr, &p->peer, 1603 sizeof(struct pf_addr)); 1604 else 1605 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1606 sizeof(struct pf_addr)); 1607 if (flags & PFI_AFLAG_NETWORK) 1608 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af)); 1609 else { 1610 if (n->af == AF_INET) { 1611 if (p->ifa_flags & IFF_LOOPBACK && 1612 p->ifa_flags & IFF_LINK1) 1613 memcpy(&n->addr.v.a.mask, 1614 &p->addr.v.a.mask, 1615 sizeof(struct pf_addr)); 1616 else 1617 set_ipmask(n, 32); 1618 } else 1619 set_ipmask(n, 128); 1620 } 1621 n->ifindex = p->ifindex; 1622 n->ifname = strdup(p->ifname); 1623 1624 n->next = NULL; 1625 n->tail = n; 1626 if (h == NULL) 1627 h = n; 1628 else { 1629 h->tail->next = n; 1630 h->tail = n; 1631 } 1632 } 1633 return (h); 1634 } 1635 1636 int 1637 ifa_skip_if(const char *filter, struct node_host *p) 1638 { 1639 int n; 1640 1641 if (p->af != AF_INET && p->af != AF_INET6) 1642 return (1); 1643 if (filter == NULL || !*filter) 1644 return (0); 1645 if (!strcmp(p->ifname, filter)) 1646 return (0); /* exact match */ 1647 n = strlen(filter); 1648 if (n < 1 || n >= IFNAMSIZ) 1649 return (1); /* sanity check */ 1650 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1651 return (1); /* only do exact match in that case */ 1652 if (strncmp(p->ifname, filter, n)) 1653 return (1); /* prefix doesn't match */ 1654 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1655 } 1656 1657 1658 struct node_host * 1659 host(const char *s) 1660 { 1661 struct node_host *h = NULL; 1662 int mask, v4mask, v6mask, cont = 1; 1663 char *p, *q, *ps; 1664 1665 if ((p = strrchr(s, '/')) != NULL) { 1666 mask = strtol(p+1, &q, 0); 1667 if (!q || *q || mask > 128 || q == (p+1)) { 1668 fprintf(stderr, "invalid netmask '%s'\n", p); 1669 return (NULL); 1670 } 1671 if ((ps = malloc(strlen(s) - strlen(p) + 1)) == NULL) 1672 err(1, "host: malloc"); 1673 strlcpy(ps, s, strlen(s) - strlen(p) + 1); 1674 v4mask = v6mask = mask; 1675 } else { 1676 if ((ps = strdup(s)) == NULL) 1677 err(1, "host: strdup"); 1678 v4mask = 32; 1679 v6mask = 128; 1680 mask = -1; 1681 } 1682 1683 /* IPv4 address? */ 1684 if (cont && (h = host_v4(s, mask)) != NULL) 1685 cont = 0; 1686 1687 /* IPv6 address? */ 1688 if (cont && (h = host_v6(ps, v6mask)) != NULL) 1689 cont = 0; 1690 1691 /* interface with this name exists? */ 1692 /* expensive with thousands of interfaces - prioritze IPv4/6 check */ 1693 if (cont && (h = host_if(ps, mask)) != NULL) 1694 cont = 0; 1695 1696 /* dns lookup */ 1697 if (cont && (h = host_dns(ps, v4mask, v6mask)) != NULL) 1698 cont = 0; 1699 free(ps); 1700 1701 if (h == NULL || cont == 1) { 1702 fprintf(stderr, "no IP address found for %s\n", s); 1703 return (NULL); 1704 } 1705 return (h); 1706 } 1707 1708 struct node_host * 1709 host_if(const char *s, int mask) 1710 { 1711 struct node_host *n, *h = NULL; 1712 char *p, *ps; 1713 int flags = 0; 1714 1715 if ((ps = strdup(s)) == NULL) 1716 err(1, "host_if: strdup"); 1717 while ((p = strrchr(ps, ':')) != NULL) { 1718 if (!strcmp(p+1, "network")) 1719 flags |= PFI_AFLAG_NETWORK; 1720 else if (!strcmp(p+1, "broadcast")) 1721 flags |= PFI_AFLAG_BROADCAST; 1722 else if (!strcmp(p+1, "peer")) 1723 flags |= PFI_AFLAG_PEER; 1724 else if (!strcmp(p+1, "0")) 1725 flags |= PFI_AFLAG_NOALIAS; 1726 else { 1727 free(ps); 1728 return (NULL); 1729 } 1730 *p = '\0'; 1731 } 1732 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1733 fprintf(stderr, "illegal combination of interface modifiers\n"); 1734 free(ps); 1735 return (NULL); 1736 } 1737 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1738 fprintf(stderr, "network or broadcast lookup, but " 1739 "extra netmask given\n"); 1740 free(ps); 1741 return (NULL); 1742 } 1743 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1744 /* interface with this name exists */ 1745 h = ifa_lookup(ps, flags); 1746 for (n = h; n != NULL && mask > -1; n = n->next) 1747 set_ipmask(n, mask); 1748 } 1749 1750 free(ps); 1751 return (h); 1752 } 1753 1754 struct node_host * 1755 host_v4(const char *s, int mask) 1756 { 1757 struct node_host *h = NULL; 1758 struct in_addr ina; 1759 int bits = 32; 1760 1761 memset(&ina, 0, sizeof(struct in_addr)); 1762 if (strrchr(s, '/') != NULL) { 1763 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1) 1764 return (NULL); 1765 } else { 1766 if (inet_pton(AF_INET, s, &ina) != 1) 1767 return (NULL); 1768 } 1769 1770 h = calloc(1, sizeof(struct node_host)); 1771 if (h == NULL) 1772 err(1, "address: calloc"); 1773 h->ifname = NULL; 1774 h->af = AF_INET; 1775 h->addr.v.a.addr.addr32[0] = ina.s_addr; 1776 set_ipmask(h, bits); 1777 h->next = NULL; 1778 h->tail = h; 1779 1780 return (h); 1781 } 1782 1783 struct node_host * 1784 host_v6(const char *s, int mask) 1785 { 1786 struct addrinfo hints, *res; 1787 struct node_host *h = NULL; 1788 1789 memset(&hints, 0, sizeof(hints)); 1790 hints.ai_family = AF_INET6; 1791 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1792 hints.ai_flags = AI_NUMERICHOST; 1793 if (getaddrinfo(s, "0", &hints, &res) == 0) { 1794 h = calloc(1, sizeof(struct node_host)); 1795 if (h == NULL) 1796 err(1, "address: calloc"); 1797 h->ifname = NULL; 1798 h->af = AF_INET6; 1799 memcpy(&h->addr.v.a.addr, 1800 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 1801 sizeof(h->addr.v.a.addr)); 1802 h->ifindex = 1803 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1804 set_ipmask(h, mask); 1805 freeaddrinfo(res); 1806 h->next = NULL; 1807 h->tail = h; 1808 } 1809 1810 return (h); 1811 } 1812 1813 struct node_host * 1814 host_dns(const char *s, int v4mask, int v6mask) 1815 { 1816 struct addrinfo hints, *res0, *res; 1817 struct node_host *n, *h = NULL; 1818 int error, noalias = 0; 1819 int got4 = 0, got6 = 0; 1820 char *p, *ps; 1821 1822 if ((ps = strdup(s)) == NULL) 1823 err(1, "host_dns: strdup"); 1824 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1825 noalias = 1; 1826 *p = '\0'; 1827 } 1828 memset(&hints, 0, sizeof(hints)); 1829 hints.ai_family = PF_UNSPEC; 1830 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1831 error = getaddrinfo(ps, NULL, &hints, &res0); 1832 if (error) { 1833 free(ps); 1834 return (h); 1835 } 1836 1837 for (res = res0; res; res = res->ai_next) { 1838 if (res->ai_family != AF_INET && 1839 res->ai_family != AF_INET6) 1840 continue; 1841 if (noalias) { 1842 if (res->ai_family == AF_INET) { 1843 if (got4) 1844 continue; 1845 got4 = 1; 1846 } else { 1847 if (got6) 1848 continue; 1849 got6 = 1; 1850 } 1851 } 1852 n = calloc(1, sizeof(struct node_host)); 1853 if (n == NULL) 1854 err(1, "host_dns: calloc"); 1855 n->ifname = NULL; 1856 n->af = res->ai_family; 1857 if (res->ai_family == AF_INET) { 1858 memcpy(&n->addr.v.a.addr, 1859 &((struct sockaddr_in *) 1860 res->ai_addr)->sin_addr.s_addr, 1861 sizeof(struct in_addr)); 1862 set_ipmask(n, v4mask); 1863 } else { 1864 memcpy(&n->addr.v.a.addr, 1865 &((struct sockaddr_in6 *) 1866 res->ai_addr)->sin6_addr.s6_addr, 1867 sizeof(struct in6_addr)); 1868 n->ifindex = 1869 ((struct sockaddr_in6 *) 1870 res->ai_addr)->sin6_scope_id; 1871 set_ipmask(n, v6mask); 1872 } 1873 n->next = NULL; 1874 n->tail = n; 1875 if (h == NULL) 1876 h = n; 1877 else { 1878 h->tail->next = n; 1879 h->tail = n; 1880 } 1881 } 1882 freeaddrinfo(res0); 1883 free(ps); 1884 1885 return (h); 1886 } 1887 1888 /* 1889 * convert a hostname to a list of addresses and put them in the given buffer. 1890 * test: 1891 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1892 */ 1893 int 1894 append_addr(struct pfr_buffer *b, char *s, int test) 1895 { 1896 char *r; 1897 struct node_host *h, *n; 1898 int rv, not = 0; 1899 1900 for (r = s; *r == '!'; r++) 1901 not = !not; 1902 if ((n = host(r)) == NULL) { 1903 errno = 0; 1904 return (-1); 1905 } 1906 rv = append_addr_host(b, n, test, not); 1907 do { 1908 h = n; 1909 n = n->next; 1910 free(h); 1911 } while (n != NULL); 1912 return (rv); 1913 } 1914 1915 /* 1916 * same as previous function, but with a pre-parsed input and the ability 1917 * to "negate" the result. Does not free the node_host list. 1918 * not: 1919 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1920 */ 1921 int 1922 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1923 { 1924 int bits; 1925 struct pfr_addr addr; 1926 1927 do { 1928 bzero(&addr, sizeof(addr)); 1929 addr.pfra_not = n->not ^ not; 1930 addr.pfra_af = n->af; 1931 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af); 1932 switch (n->af) { 1933 case AF_INET: 1934 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 1935 bits = 32; 1936 break; 1937 case AF_INET6: 1938 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 1939 sizeof(struct in6_addr)); 1940 bits = 128; 1941 break; 1942 default: 1943 errno = EINVAL; 1944 return (-1); 1945 } 1946 if ((test && (not || addr.pfra_net != bits)) || 1947 addr.pfra_net > bits) { 1948 errno = EINVAL; 1949 return (-1); 1950 } 1951 if (pfr_buf_add(b, &addr)) 1952 return (-1); 1953 } while ((n = n->next) != NULL); 1954 1955 return (0); 1956 } 1957 1958 int 1959 pfctl_add_trans(struct pfr_buffer *buf, int rs_num, const char *anchor) 1960 { 1961 struct pfioc_trans_e trans; 1962 1963 bzero(&trans, sizeof(trans)); 1964 trans.rs_num = rs_num; 1965 if (strlcpy(trans.anchor, anchor, 1966 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 1967 errx(1, "pfctl_add_trans: strlcpy"); 1968 1969 return pfr_buf_add(buf, &trans); 1970 } 1971 1972 u_int32_t 1973 pfctl_get_ticket(struct pfr_buffer *buf, int rs_num, const char *anchor) 1974 { 1975 struct pfioc_trans_e *p; 1976 1977 PFRB_FOREACH(p, buf) 1978 if (rs_num == p->rs_num && !strcmp(anchor, p->anchor)) 1979 return (p->ticket); 1980 errx(1, "pfctl_get_ticket: assertion failed"); 1981 } 1982 1983 int 1984 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 1985 { 1986 struct pfioc_trans trans; 1987 1988 bzero(&trans, sizeof(trans)); 1989 trans.size = buf->pfrb_size - from; 1990 trans.esize = sizeof(struct pfioc_trans_e); 1991 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 1992 return ioctl(dev, cmd, &trans); 1993 } 1994