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, 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->match_tagname[0]) { 795 if (r->match_tag_not) 796 printf(" !"); 797 printf(" tagged %s", r->match_tagname); 798 } 799 if (r->dnpipe) 800 printf(" %s %d", 801 r->dnflags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 802 r->dnpipe); 803 } 804 805 void 806 print_rule(struct pfctl_rule *r, const char *anchor_call, int verbose, int numeric) 807 { 808 static const char *actiontypes[] = { "pass", "block", "scrub", 809 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr" }; 810 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 811 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 812 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 813 int i, opts; 814 815 if (verbose) 816 printf("@%d ", r->nr); 817 if (r->action == PF_MATCH) 818 printf("match"); 819 else if (r->action > PF_NORDR) 820 printf("action(%d)", r->action); 821 else if (anchor_call[0]) { 822 if (anchor_call[0] == '_') { 823 printf("%s", anchortypes[r->action]); 824 } else 825 printf("%s \"%s\"", anchortypes[r->action], 826 anchor_call); 827 } else { 828 printf("%s", actiontypes[r->action]); 829 if (r->natpass) 830 printf(" pass"); 831 } 832 if (r->action == PF_DROP) { 833 if (r->rule_flag & PFRULE_RETURN) 834 printf(" return"); 835 else if (r->rule_flag & PFRULE_RETURNRST) { 836 if (!r->return_ttl) 837 printf(" return-rst"); 838 else 839 printf(" return-rst(ttl %d)", r->return_ttl); 840 } else if (r->rule_flag & PFRULE_RETURNICMP) { 841 const struct icmpcodeent *ic, *ic6; 842 843 ic = geticmpcodebynumber(r->return_icmp >> 8, 844 r->return_icmp & 255, AF_INET); 845 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 846 r->return_icmp6 & 255, AF_INET6); 847 848 switch (r->af) { 849 case AF_INET: 850 printf(" return-icmp"); 851 if (ic == NULL) 852 printf("(%u)", r->return_icmp & 255); 853 else 854 printf("(%s)", ic->name); 855 break; 856 case AF_INET6: 857 printf(" return-icmp6"); 858 if (ic6 == NULL) 859 printf("(%u)", r->return_icmp6 & 255); 860 else 861 printf("(%s)", ic6->name); 862 break; 863 default: 864 printf(" return-icmp"); 865 if (ic == NULL) 866 printf("(%u, ", r->return_icmp & 255); 867 else 868 printf("(%s, ", ic->name); 869 if (ic6 == NULL) 870 printf("%u)", r->return_icmp6 & 255); 871 else 872 printf("%s)", ic6->name); 873 break; 874 } 875 } else 876 printf(" drop"); 877 } 878 if (r->direction == PF_IN) 879 printf(" in"); 880 else if (r->direction == PF_OUT) 881 printf(" out"); 882 if (r->log) { 883 printf(" log"); 884 if (r->log & ~PF_LOG || r->logif) { 885 int count = 0; 886 887 printf(" ("); 888 if (r->log & PF_LOG_ALL) 889 printf("%sall", count++ ? ", " : ""); 890 if (r->log & PF_LOG_SOCKET_LOOKUP) 891 printf("%suser", count++ ? ", " : ""); 892 if (r->logif) 893 printf("%sto pflog%u", count++ ? ", " : "", 894 r->logif); 895 printf(")"); 896 } 897 } 898 if (r->quick) 899 printf(" quick"); 900 if (r->ifname[0]) { 901 if (r->ifnot) 902 printf(" on ! %s", r->ifname); 903 else 904 printf(" on %s", r->ifname); 905 } 906 if (r->rt) { 907 if (r->rt == PF_ROUTETO) 908 printf(" route-to"); 909 else if (r->rt == PF_REPLYTO) 910 printf(" reply-to"); 911 else if (r->rt == PF_DUPTO) 912 printf(" dup-to"); 913 printf(" "); 914 print_pool(&r->rpool, 0, 0, r->af, PF_PASS); 915 } 916 if (r->af) { 917 if (r->af == AF_INET) 918 printf(" inet"); 919 else 920 printf(" inet6"); 921 } 922 if (r->proto) { 923 const char *protoname; 924 925 if ((protoname = pfctl_proto2name(r->proto)) != NULL) 926 printf(" proto %s", protoname); 927 else 928 printf(" proto %u", r->proto); 929 } 930 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 931 verbose, numeric); 932 if (r->uid.op) 933 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 934 UID_MAX); 935 if (r->gid.op) 936 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 937 GID_MAX); 938 if (r->flags || r->flagset) { 939 printf(" flags "); 940 print_flags(r->flags); 941 printf("/"); 942 print_flags(r->flagset); 943 } else if (r->action == PF_PASS && 944 (!r->proto || r->proto == IPPROTO_TCP) && 945 !(r->rule_flag & PFRULE_FRAGMENT) && 946 !anchor_call[0] && r->keep_state) 947 printf(" flags any"); 948 if (r->type) { 949 const struct icmptypeent *it; 950 951 it = geticmptypebynumber(r->type-1, r->af); 952 if (r->af != AF_INET6) 953 printf(" icmp-type"); 954 else 955 printf(" icmp6-type"); 956 if (it != NULL) 957 printf(" %s", it->name); 958 else 959 printf(" %u", r->type-1); 960 if (r->code) { 961 const struct icmpcodeent *ic; 962 963 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 964 if (ic != NULL) 965 printf(" code %s", ic->name); 966 else 967 printf(" code %u", r->code-1); 968 } 969 } 970 if (r->tos) 971 printf(" tos 0x%2.2x", r->tos); 972 if (r->prio) 973 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio); 974 if (r->scrub_flags & PFSTATE_SETMASK) { 975 char *comma = ""; 976 printf(" set ("); 977 if (r->scrub_flags & PFSTATE_SETPRIO) { 978 if (r->set_prio[0] == r->set_prio[1]) 979 printf("%s prio %u", comma, r->set_prio[0]); 980 else 981 printf("%s prio(%u, %u)", comma, r->set_prio[0], 982 r->set_prio[1]); 983 comma = ","; 984 } 985 printf(" )"); 986 } 987 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 988 printf(" no state"); 989 else if (r->keep_state == PF_STATE_NORMAL) 990 printf(" keep state"); 991 else if (r->keep_state == PF_STATE_MODULATE) 992 printf(" modulate state"); 993 else if (r->keep_state == PF_STATE_SYNPROXY) 994 printf(" synproxy state"); 995 if (r->prob) { 996 char buf[20]; 997 998 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 999 for (i = strlen(buf)-1; i > 0; i--) { 1000 if (buf[i] == '0') 1001 buf[i] = '\0'; 1002 else { 1003 if (buf[i] == '.') 1004 buf[i] = '\0'; 1005 break; 1006 } 1007 } 1008 printf(" probability %s%%", buf); 1009 } 1010 opts = 0; 1011 if (r->max_states || r->max_src_nodes || r->max_src_states) 1012 opts = 1; 1013 if (r->rule_flag & PFRULE_NOSYNC) 1014 opts = 1; 1015 if (r->rule_flag & PFRULE_SRCTRACK) 1016 opts = 1; 1017 if (r->rule_flag & PFRULE_IFBOUND) 1018 opts = 1; 1019 if (r->rule_flag & PFRULE_STATESLOPPY) 1020 opts = 1; 1021 for (i = 0; !opts && i < PFTM_MAX; ++i) 1022 if (r->timeout[i]) 1023 opts = 1; 1024 if (opts) { 1025 printf(" ("); 1026 if (r->max_states) { 1027 printf("max %u", r->max_states); 1028 opts = 0; 1029 } 1030 if (r->rule_flag & PFRULE_NOSYNC) { 1031 if (!opts) 1032 printf(", "); 1033 printf("no-sync"); 1034 opts = 0; 1035 } 1036 if (r->rule_flag & PFRULE_SRCTRACK) { 1037 if (!opts) 1038 printf(", "); 1039 printf("source-track"); 1040 if (r->rule_flag & PFRULE_RULESRCTRACK) 1041 printf(" rule"); 1042 else 1043 printf(" global"); 1044 opts = 0; 1045 } 1046 if (r->max_src_states) { 1047 if (!opts) 1048 printf(", "); 1049 printf("max-src-states %u", r->max_src_states); 1050 opts = 0; 1051 } 1052 if (r->max_src_conn) { 1053 if (!opts) 1054 printf(", "); 1055 printf("max-src-conn %u", r->max_src_conn); 1056 opts = 0; 1057 } 1058 if (r->max_src_conn_rate.limit) { 1059 if (!opts) 1060 printf(", "); 1061 printf("max-src-conn-rate %u/%u", 1062 r->max_src_conn_rate.limit, 1063 r->max_src_conn_rate.seconds); 1064 opts = 0; 1065 } 1066 if (r->max_src_nodes) { 1067 if (!opts) 1068 printf(", "); 1069 printf("max-src-nodes %u", r->max_src_nodes); 1070 opts = 0; 1071 } 1072 if (r->overload_tblname[0]) { 1073 if (!opts) 1074 printf(", "); 1075 printf("overload <%s>", r->overload_tblname); 1076 if (r->flush) 1077 printf(" flush"); 1078 if (r->flush & PF_FLUSH_GLOBAL) 1079 printf(" global"); 1080 } 1081 if (r->rule_flag & PFRULE_IFBOUND) { 1082 if (!opts) 1083 printf(", "); 1084 printf("if-bound"); 1085 opts = 0; 1086 } 1087 if (r->rule_flag & PFRULE_STATESLOPPY) { 1088 if (!opts) 1089 printf(", "); 1090 printf("sloppy"); 1091 opts = 0; 1092 } 1093 for (i = 0; i < PFTM_MAX; ++i) 1094 if (r->timeout[i]) { 1095 int j; 1096 1097 if (!opts) 1098 printf(", "); 1099 opts = 0; 1100 for (j = 0; pf_timeouts[j].name != NULL; 1101 ++j) 1102 if (pf_timeouts[j].timeout == i) 1103 break; 1104 printf("%s %u", pf_timeouts[j].name == NULL ? 1105 "inv.timeout" : pf_timeouts[j].name, 1106 r->timeout[i]); 1107 } 1108 printf(")"); 1109 } 1110 if (r->rule_flag & PFRULE_FRAGMENT) 1111 printf(" fragment"); 1112 if (r->rule_flag & PFRULE_NODF) 1113 printf(" no-df"); 1114 if (r->rule_flag & PFRULE_RANDOMID) 1115 printf(" random-id"); 1116 if (r->min_ttl) 1117 printf(" min-ttl %d", r->min_ttl); 1118 if (r->max_mss) 1119 printf(" max-mss %d", r->max_mss); 1120 if (r->rule_flag & PFRULE_SET_TOS) 1121 printf(" set-tos 0x%2.2x", r->set_tos); 1122 if (r->allow_opts) 1123 printf(" allow-opts"); 1124 if (r->action == PF_SCRUB) { 1125 if (r->rule_flag & PFRULE_REASSEMBLE_TCP) 1126 printf(" reassemble tcp"); 1127 1128 printf(" fragment reassemble"); 1129 } 1130 i = 0; 1131 while (r->label[i][0]) 1132 printf(" label \"%s\"", r->label[i++]); 1133 if (r->ridentifier) 1134 printf(" ridentifier %u", r->ridentifier); 1135 /* Only dnrpipe as we might do (0, 42) to only queue return traffic. */ 1136 if (r->dnrpipe) 1137 printf(" %s(%d, %d)", 1138 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1139 r->dnpipe, r->dnrpipe); 1140 else if (r->dnpipe) 1141 printf(" %s %d", 1142 r->free_flags & PFRULE_DN_IS_PIPE ? "dnpipe" : "dnqueue", 1143 r->dnpipe); 1144 if (r->qname[0] && r->pqname[0]) 1145 printf(" queue(%s, %s)", r->qname, r->pqname); 1146 else if (r->qname[0]) 1147 printf(" queue %s", r->qname); 1148 if (r->tagname[0]) 1149 printf(" tag %s", r->tagname); 1150 if (r->match_tagname[0]) { 1151 if (r->match_tag_not) 1152 printf(" !"); 1153 printf(" tagged %s", r->match_tagname); 1154 } 1155 if (r->rtableid != -1) 1156 printf(" rtable %u", r->rtableid); 1157 if (r->divert.port) { 1158 #ifdef __FreeBSD__ 1159 printf(" divert-to %u", ntohs(r->divert.port)); 1160 #else 1161 if (PF_AZERO(&r->divert.addr, r->af)) { 1162 printf(" divert-reply"); 1163 } else { 1164 /* XXX cut&paste from print_addr */ 1165 char buf[48]; 1166 1167 printf(" divert-to "); 1168 if (inet_ntop(r->af, &r->divert.addr, buf, 1169 sizeof(buf)) == NULL) 1170 printf("?"); 1171 else 1172 printf("%s", buf); 1173 printf(" port %u", ntohs(r->divert.port)); 1174 } 1175 #endif 1176 } 1177 if (!anchor_call[0] && (r->action == PF_NAT || 1178 r->action == PF_BINAT || r->action == PF_RDR)) { 1179 printf(" -> "); 1180 print_pool(&r->rpool, r->rpool.proxy_port[0], 1181 r->rpool.proxy_port[1], r->af, r->action); 1182 } 1183 } 1184 1185 void 1186 print_tabledef(const char *name, int flags, int addrs, 1187 struct node_tinithead *nodes) 1188 { 1189 struct node_tinit *ti, *nti; 1190 struct node_host *h; 1191 1192 printf("table <%s>", name); 1193 if (flags & PFR_TFLAG_CONST) 1194 printf(" const"); 1195 if (flags & PFR_TFLAG_PERSIST) 1196 printf(" persist"); 1197 if (flags & PFR_TFLAG_COUNTERS) 1198 printf(" counters"); 1199 SIMPLEQ_FOREACH(ti, nodes, entries) { 1200 if (ti->file) { 1201 printf(" file \"%s\"", ti->file); 1202 continue; 1203 } 1204 printf(" {"); 1205 for (;;) { 1206 for (h = ti->host; h != NULL; h = h->next) { 1207 printf(h->not ? " !" : " "); 1208 print_addr(&h->addr, h->af, 0); 1209 } 1210 nti = SIMPLEQ_NEXT(ti, entries); 1211 if (nti != NULL && nti->file == NULL) 1212 ti = nti; /* merge lists */ 1213 else 1214 break; 1215 } 1216 printf(" }"); 1217 } 1218 if (addrs && SIMPLEQ_EMPTY(nodes)) 1219 printf(" { }"); 1220 printf("\n"); 1221 } 1222 1223 int 1224 parse_flags(char *s) 1225 { 1226 char *p, *q; 1227 u_int8_t f = 0; 1228 1229 for (p = s; *p; p++) { 1230 if ((q = strchr(tcpflags, *p)) == NULL) 1231 return -1; 1232 else 1233 f |= 1 << (q - tcpflags); 1234 } 1235 return (f ? f : PF_TH_ALL); 1236 } 1237 1238 void 1239 set_ipmask(struct node_host *h, u_int8_t b) 1240 { 1241 struct pf_addr *m, *n; 1242 int i, j = 0; 1243 1244 m = &h->addr.v.a.mask; 1245 memset(m, 0, sizeof(*m)); 1246 1247 while (b >= 32) { 1248 m->addr32[j++] = 0xffffffff; 1249 b -= 32; 1250 } 1251 for (i = 31; i > 31-b; --i) 1252 m->addr32[j] |= (1 << i); 1253 if (b) 1254 m->addr32[j] = htonl(m->addr32[j]); 1255 1256 /* Mask off bits of the address that will never be used. */ 1257 n = &h->addr.v.a.addr; 1258 if (h->addr.type == PF_ADDR_ADDRMASK) 1259 for (i = 0; i < 4; i++) 1260 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1261 } 1262 1263 int 1264 check_netmask(struct node_host *h, sa_family_t af) 1265 { 1266 struct node_host *n = NULL; 1267 struct pf_addr *m; 1268 1269 for (n = h; n != NULL; n = n->next) { 1270 if (h->addr.type == PF_ADDR_TABLE) 1271 continue; 1272 m = &h->addr.v.a.mask; 1273 /* fix up netmask for dynaddr */ 1274 if (af == AF_INET && h->addr.type == PF_ADDR_DYNIFTL && 1275 unmask(m, AF_INET6) > 32) 1276 set_ipmask(n, 32); 1277 /* netmasks > 32 bit are invalid on v4 */ 1278 if (af == AF_INET && 1279 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1280 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1281 unmask(m, AF_INET6)); 1282 return (1); 1283 } 1284 } 1285 return (0); 1286 } 1287 1288 /* interface lookup routines */ 1289 1290 static struct node_host *iftab; 1291 1292 /* 1293 * Retrieve the list of groups this interface is a member of and make sure 1294 * each group is in the group map. 1295 */ 1296 static void 1297 ifa_add_groups_to_map(char *ifa_name) 1298 { 1299 int s, len; 1300 struct ifgroupreq ifgr; 1301 struct ifg_req *ifg; 1302 1303 s = get_query_socket(); 1304 1305 /* Get size of group list for this interface */ 1306 memset(&ifgr, 0, sizeof(ifgr)); 1307 strlcpy(ifgr.ifgr_name, ifa_name, IFNAMSIZ); 1308 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1309 err(1, "SIOCGIFGROUP"); 1310 1311 /* Retrieve group list for this interface */ 1312 len = ifgr.ifgr_len; 1313 ifgr.ifgr_groups = 1314 (struct ifg_req *)calloc(len / sizeof(struct ifg_req), 1315 sizeof(struct ifg_req)); 1316 if (ifgr.ifgr_groups == NULL) 1317 err(1, "calloc"); 1318 if (ioctl(s, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 1319 err(1, "SIOCGIFGROUP"); 1320 1321 ifg = ifgr.ifgr_groups; 1322 for (; ifg && len >= sizeof(struct ifg_req); ifg++) { 1323 len -= sizeof(struct ifg_req); 1324 if (strcmp(ifg->ifgrq_group, "all")) { 1325 ENTRY item; 1326 ENTRY *ret_item; 1327 int *answer; 1328 1329 item.key = ifg->ifgrq_group; 1330 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) { 1331 struct ifgroupreq ifgr2; 1332 1333 /* Don't know the answer yet */ 1334 if ((answer = malloc(sizeof(int))) == NULL) 1335 err(1, "malloc"); 1336 1337 bzero(&ifgr2, sizeof(ifgr2)); 1338 strlcpy(ifgr2.ifgr_name, ifg->ifgrq_group, 1339 sizeof(ifgr2.ifgr_name)); 1340 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr2) == 0) 1341 *answer = ifgr2.ifgr_len; 1342 else 1343 *answer = 0; 1344 1345 item.key = strdup(ifg->ifgrq_group); 1346 item.data = answer; 1347 if (hsearch_r(item, ENTER, &ret_item, 1348 &isgroup_map) == 0) 1349 err(1, "interface group query response" 1350 " map insert"); 1351 } 1352 } 1353 } 1354 free(ifgr.ifgr_groups); 1355 } 1356 1357 void 1358 ifa_load(void) 1359 { 1360 struct ifaddrs *ifap, *ifa; 1361 struct node_host *n = NULL, *h = NULL; 1362 1363 if (getifaddrs(&ifap) < 0) 1364 err(1, "getifaddrs"); 1365 1366 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1367 if (!(ifa->ifa_addr->sa_family == AF_INET || 1368 ifa->ifa_addr->sa_family == AF_INET6 || 1369 ifa->ifa_addr->sa_family == AF_LINK)) 1370 continue; 1371 n = calloc(1, sizeof(struct node_host)); 1372 if (n == NULL) 1373 err(1, "address: calloc"); 1374 n->af = ifa->ifa_addr->sa_family; 1375 n->ifa_flags = ifa->ifa_flags; 1376 #ifdef __KAME__ 1377 if (n->af == AF_INET6 && 1378 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1379 ifa->ifa_addr)->sin6_addr) && 1380 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1381 0) { 1382 struct sockaddr_in6 *sin6; 1383 1384 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1385 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1386 sin6->sin6_addr.s6_addr[3]; 1387 sin6->sin6_addr.s6_addr[2] = 0; 1388 sin6->sin6_addr.s6_addr[3] = 0; 1389 } 1390 #endif 1391 n->ifindex = 0; 1392 if (n->af == AF_INET) { 1393 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *) 1394 ifa->ifa_addr)->sin_addr.s_addr, 1395 sizeof(struct in_addr)); 1396 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *) 1397 ifa->ifa_netmask)->sin_addr.s_addr, 1398 sizeof(struct in_addr)); 1399 if (ifa->ifa_broadaddr != NULL) 1400 memcpy(&n->bcast, &((struct sockaddr_in *) 1401 ifa->ifa_broadaddr)->sin_addr.s_addr, 1402 sizeof(struct in_addr)); 1403 if (ifa->ifa_dstaddr != NULL) 1404 memcpy(&n->peer, &((struct sockaddr_in *) 1405 ifa->ifa_dstaddr)->sin_addr.s_addr, 1406 sizeof(struct in_addr)); 1407 } else if (n->af == AF_INET6) { 1408 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *) 1409 ifa->ifa_addr)->sin6_addr.s6_addr, 1410 sizeof(struct in6_addr)); 1411 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *) 1412 ifa->ifa_netmask)->sin6_addr.s6_addr, 1413 sizeof(struct in6_addr)); 1414 if (ifa->ifa_broadaddr != NULL) 1415 memcpy(&n->bcast, &((struct sockaddr_in6 *) 1416 ifa->ifa_broadaddr)->sin6_addr.s6_addr, 1417 sizeof(struct in6_addr)); 1418 if (ifa->ifa_dstaddr != NULL) 1419 memcpy(&n->peer, &((struct sockaddr_in6 *) 1420 ifa->ifa_dstaddr)->sin6_addr.s6_addr, 1421 sizeof(struct in6_addr)); 1422 n->ifindex = ((struct sockaddr_in6 *) 1423 ifa->ifa_addr)->sin6_scope_id; 1424 } else if (n->af == AF_LINK) { 1425 ifa_add_groups_to_map(ifa->ifa_name); 1426 } 1427 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1428 err(1, "ifa_load: strdup"); 1429 n->next = NULL; 1430 n->tail = n; 1431 if (h == NULL) 1432 h = n; 1433 else { 1434 h->tail->next = n; 1435 h->tail = n; 1436 } 1437 } 1438 1439 iftab = h; 1440 freeifaddrs(ifap); 1441 } 1442 1443 static int 1444 get_socket_domain(void) 1445 { 1446 int sdom; 1447 1448 sdom = AF_UNSPEC; 1449 #ifdef WITH_INET6 1450 if (sdom == AF_UNSPEC && feature_present("inet6")) 1451 sdom = AF_INET6; 1452 #endif 1453 #ifdef WITH_INET 1454 if (sdom == AF_UNSPEC && feature_present("inet")) 1455 sdom = AF_INET; 1456 #endif 1457 if (sdom == AF_UNSPEC) 1458 sdom = AF_LINK; 1459 1460 return (sdom); 1461 } 1462 1463 int 1464 get_query_socket(void) 1465 { 1466 static int s = -1; 1467 1468 if (s == -1) { 1469 if ((s = socket(get_socket_domain(), SOCK_DGRAM, 0)) == -1) 1470 err(1, "socket"); 1471 } 1472 1473 return (s); 1474 } 1475 1476 /* 1477 * Returns the response len if the name is a group, otherwise returns 0. 1478 */ 1479 static int 1480 is_a_group(char *name) 1481 { 1482 ENTRY item; 1483 ENTRY *ret_item; 1484 1485 item.key = name; 1486 if (hsearch_r(item, FIND, &ret_item, &isgroup_map) == 0) 1487 return (0); 1488 1489 return (*(int *)ret_item->data); 1490 } 1491 1492 struct node_host * 1493 ifa_exists(char *ifa_name) 1494 { 1495 struct node_host *n; 1496 1497 if (iftab == NULL) 1498 ifa_load(); 1499 1500 /* check whether this is a group */ 1501 if (is_a_group(ifa_name)) { 1502 /* fake a node_host */ 1503 if ((n = calloc(1, sizeof(*n))) == NULL) 1504 err(1, "calloc"); 1505 if ((n->ifname = strdup(ifa_name)) == NULL) 1506 err(1, "strdup"); 1507 return (n); 1508 } 1509 1510 for (n = iftab; n; n = n->next) { 1511 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1512 return (n); 1513 } 1514 1515 return (NULL); 1516 } 1517 1518 struct node_host * 1519 ifa_grouplookup(char *ifa_name, int flags) 1520 { 1521 struct ifg_req *ifg; 1522 struct ifgroupreq ifgr; 1523 int s, len; 1524 struct node_host *n, *h = NULL; 1525 1526 s = get_query_socket(); 1527 len = is_a_group(ifa_name); 1528 if (len == 0) 1529 return (NULL); 1530 bzero(&ifgr, sizeof(ifgr)); 1531 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1532 ifgr.ifgr_len = len; 1533 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1534 err(1, "calloc"); 1535 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1536 err(1, "SIOCGIFGMEMB"); 1537 1538 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1539 ifg++) { 1540 len -= sizeof(struct ifg_req); 1541 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1542 continue; 1543 if (h == NULL) 1544 h = n; 1545 else { 1546 h->tail->next = n; 1547 h->tail = n->tail; 1548 } 1549 } 1550 free(ifgr.ifgr_groups); 1551 1552 return (h); 1553 } 1554 1555 struct node_host * 1556 ifa_lookup(char *ifa_name, int flags) 1557 { 1558 struct node_host *p = NULL, *h = NULL, *n = NULL; 1559 int got4 = 0, got6 = 0; 1560 const char *last_if = NULL; 1561 1562 /* first load iftab and isgroup_map */ 1563 if (iftab == NULL) 1564 ifa_load(); 1565 1566 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1567 return (h); 1568 1569 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1570 ifa_name = NULL; 1571 1572 for (p = iftab; p; p = p->next) { 1573 if (ifa_skip_if(ifa_name, p)) 1574 continue; 1575 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1576 continue; 1577 if ((flags & PFI_AFLAG_BROADCAST) && 1578 !(p->ifa_flags & IFF_BROADCAST)) 1579 continue; 1580 if ((flags & PFI_AFLAG_PEER) && 1581 !(p->ifa_flags & IFF_POINTOPOINT)) 1582 continue; 1583 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1584 continue; 1585 if (last_if == NULL || strcmp(last_if, p->ifname)) 1586 got4 = got6 = 0; 1587 last_if = p->ifname; 1588 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1589 continue; 1590 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && 1591 IN6_IS_ADDR_LINKLOCAL(&p->addr.v.a.addr.v6)) 1592 continue; 1593 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1594 continue; 1595 if (p->af == AF_INET) 1596 got4 = 1; 1597 else 1598 got6 = 1; 1599 n = calloc(1, sizeof(struct node_host)); 1600 if (n == NULL) 1601 err(1, "address: calloc"); 1602 n->af = p->af; 1603 if (flags & PFI_AFLAG_BROADCAST) 1604 memcpy(&n->addr.v.a.addr, &p->bcast, 1605 sizeof(struct pf_addr)); 1606 else if (flags & PFI_AFLAG_PEER) 1607 memcpy(&n->addr.v.a.addr, &p->peer, 1608 sizeof(struct pf_addr)); 1609 else 1610 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1611 sizeof(struct pf_addr)); 1612 if (flags & PFI_AFLAG_NETWORK) 1613 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af)); 1614 else { 1615 if (n->af == AF_INET) { 1616 if (p->ifa_flags & IFF_LOOPBACK && 1617 p->ifa_flags & IFF_LINK1) 1618 memcpy(&n->addr.v.a.mask, 1619 &p->addr.v.a.mask, 1620 sizeof(struct pf_addr)); 1621 else 1622 set_ipmask(n, 32); 1623 } else 1624 set_ipmask(n, 128); 1625 } 1626 n->ifindex = p->ifindex; 1627 n->ifname = strdup(p->ifname); 1628 1629 n->next = NULL; 1630 n->tail = n; 1631 if (h == NULL) 1632 h = n; 1633 else { 1634 h->tail->next = n; 1635 h->tail = n; 1636 } 1637 } 1638 return (h); 1639 } 1640 1641 int 1642 ifa_skip_if(const char *filter, struct node_host *p) 1643 { 1644 int n; 1645 1646 if (p->af != AF_INET && p->af != AF_INET6) 1647 return (1); 1648 if (filter == NULL || !*filter) 1649 return (0); 1650 if (!strcmp(p->ifname, filter)) 1651 return (0); /* exact match */ 1652 n = strlen(filter); 1653 if (n < 1 || n >= IFNAMSIZ) 1654 return (1); /* sanity check */ 1655 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1656 return (1); /* only do exact match in that case */ 1657 if (strncmp(p->ifname, filter, n)) 1658 return (1); /* prefix doesn't match */ 1659 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1660 } 1661 1662 1663 struct node_host * 1664 host(const char *s) 1665 { 1666 struct node_host *h = NULL; 1667 int mask, v4mask, v6mask, cont = 1; 1668 char *p, *q, *ps; 1669 1670 if ((p = strrchr(s, '/')) != NULL) { 1671 mask = strtol(p+1, &q, 0); 1672 if (!q || *q || mask > 128 || q == (p+1)) { 1673 fprintf(stderr, "invalid netmask '%s'\n", p); 1674 return (NULL); 1675 } 1676 if ((ps = malloc(strlen(s) - strlen(p) + 1)) == NULL) 1677 err(1, "host: malloc"); 1678 strlcpy(ps, s, strlen(s) - strlen(p) + 1); 1679 v4mask = v6mask = mask; 1680 } else { 1681 if ((ps = strdup(s)) == NULL) 1682 err(1, "host: strdup"); 1683 v4mask = 32; 1684 v6mask = 128; 1685 mask = -1; 1686 } 1687 1688 /* IPv4 address? */ 1689 if (cont && (h = host_v4(s, mask)) != NULL) 1690 cont = 0; 1691 1692 /* IPv6 address? */ 1693 if (cont && (h = host_v6(ps, v6mask)) != NULL) 1694 cont = 0; 1695 1696 /* interface with this name exists? */ 1697 /* expensive with thousands of interfaces - prioritze IPv4/6 check */ 1698 if (cont && (h = host_if(ps, mask, &cont)) != NULL) 1699 cont = 0; 1700 1701 /* dns lookup */ 1702 if (cont && (h = host_dns(ps, v4mask, v6mask)) != NULL) 1703 cont = 0; 1704 free(ps); 1705 1706 if (h == NULL || cont == 1) { 1707 fprintf(stderr, "no IP address found for %s\n", s); 1708 return (NULL); 1709 } 1710 return (h); 1711 } 1712 1713 struct node_host * 1714 host_if(const char *s, int mask, int *cont) 1715 { 1716 struct node_host *n, *h = NULL; 1717 char *p, *ps; 1718 int flags = 0; 1719 1720 if ((ps = strdup(s)) == NULL) 1721 err(1, "host_if: strdup"); 1722 while ((p = strrchr(ps, ':')) != NULL) { 1723 if (!strcmp(p+1, "network")) 1724 flags |= PFI_AFLAG_NETWORK; 1725 else if (!strcmp(p+1, "broadcast")) 1726 flags |= PFI_AFLAG_BROADCAST; 1727 else if (!strcmp(p+1, "peer")) 1728 flags |= PFI_AFLAG_PEER; 1729 else if (!strcmp(p+1, "0")) 1730 flags |= PFI_AFLAG_NOALIAS; 1731 else { 1732 free(ps); 1733 return (NULL); 1734 } 1735 *p = '\0'; 1736 *cont = 0; 1737 } 1738 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1739 fprintf(stderr, "illegal combination of interface modifiers\n"); 1740 free(ps); 1741 return (NULL); 1742 } 1743 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1744 fprintf(stderr, "network or broadcast lookup, but " 1745 "extra netmask given\n"); 1746 free(ps); 1747 return (NULL); 1748 } 1749 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1750 /* interface with this name exists */ 1751 h = ifa_lookup(ps, flags); 1752 for (n = h; n != NULL && mask > -1; n = n->next) 1753 set_ipmask(n, mask); 1754 } 1755 1756 free(ps); 1757 return (h); 1758 } 1759 1760 struct node_host * 1761 host_v4(const char *s, int mask) 1762 { 1763 struct node_host *h = NULL; 1764 struct in_addr ina; 1765 int bits = 32; 1766 1767 memset(&ina, 0, sizeof(struct in_addr)); 1768 if (strrchr(s, '/') != NULL) { 1769 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1) 1770 return (NULL); 1771 } else { 1772 if (inet_pton(AF_INET, s, &ina) != 1) 1773 return (NULL); 1774 } 1775 1776 h = calloc(1, sizeof(struct node_host)); 1777 if (h == NULL) 1778 err(1, "address: calloc"); 1779 h->ifname = NULL; 1780 h->af = AF_INET; 1781 h->addr.v.a.addr.addr32[0] = ina.s_addr; 1782 set_ipmask(h, bits); 1783 h->next = NULL; 1784 h->tail = h; 1785 1786 return (h); 1787 } 1788 1789 struct node_host * 1790 host_v6(const char *s, int mask) 1791 { 1792 struct addrinfo hints, *res; 1793 struct node_host *h = NULL; 1794 1795 memset(&hints, 0, sizeof(hints)); 1796 hints.ai_family = AF_INET6; 1797 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1798 hints.ai_flags = AI_NUMERICHOST; 1799 if (getaddrinfo(s, "0", &hints, &res) == 0) { 1800 h = calloc(1, sizeof(struct node_host)); 1801 if (h == NULL) 1802 err(1, "address: calloc"); 1803 h->ifname = NULL; 1804 h->af = AF_INET6; 1805 memcpy(&h->addr.v.a.addr, 1806 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 1807 sizeof(h->addr.v.a.addr)); 1808 h->ifindex = 1809 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1810 set_ipmask(h, mask); 1811 freeaddrinfo(res); 1812 h->next = NULL; 1813 h->tail = h; 1814 } 1815 1816 return (h); 1817 } 1818 1819 struct node_host * 1820 host_dns(const char *s, int v4mask, int v6mask) 1821 { 1822 struct addrinfo hints, *res0, *res; 1823 struct node_host *n, *h = NULL; 1824 int error, noalias = 0; 1825 int got4 = 0, got6 = 0; 1826 char *p, *ps; 1827 1828 if ((ps = strdup(s)) == NULL) 1829 err(1, "host_dns: strdup"); 1830 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1831 noalias = 1; 1832 *p = '\0'; 1833 } 1834 memset(&hints, 0, sizeof(hints)); 1835 hints.ai_family = PF_UNSPEC; 1836 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1837 error = getaddrinfo(ps, NULL, &hints, &res0); 1838 if (error) { 1839 free(ps); 1840 return (h); 1841 } 1842 1843 for (res = res0; res; res = res->ai_next) { 1844 if (res->ai_family != AF_INET && 1845 res->ai_family != AF_INET6) 1846 continue; 1847 if (noalias) { 1848 if (res->ai_family == AF_INET) { 1849 if (got4) 1850 continue; 1851 got4 = 1; 1852 } else { 1853 if (got6) 1854 continue; 1855 got6 = 1; 1856 } 1857 } 1858 n = calloc(1, sizeof(struct node_host)); 1859 if (n == NULL) 1860 err(1, "host_dns: calloc"); 1861 n->ifname = NULL; 1862 n->af = res->ai_family; 1863 if (res->ai_family == AF_INET) { 1864 memcpy(&n->addr.v.a.addr, 1865 &((struct sockaddr_in *) 1866 res->ai_addr)->sin_addr.s_addr, 1867 sizeof(struct in_addr)); 1868 set_ipmask(n, v4mask); 1869 } else { 1870 memcpy(&n->addr.v.a.addr, 1871 &((struct sockaddr_in6 *) 1872 res->ai_addr)->sin6_addr.s6_addr, 1873 sizeof(struct in6_addr)); 1874 n->ifindex = 1875 ((struct sockaddr_in6 *) 1876 res->ai_addr)->sin6_scope_id; 1877 set_ipmask(n, v6mask); 1878 } 1879 n->next = NULL; 1880 n->tail = n; 1881 if (h == NULL) 1882 h = n; 1883 else { 1884 h->tail->next = n; 1885 h->tail = n; 1886 } 1887 } 1888 freeaddrinfo(res0); 1889 free(ps); 1890 1891 return (h); 1892 } 1893 1894 /* 1895 * convert a hostname to a list of addresses and put them in the given buffer. 1896 * test: 1897 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1898 */ 1899 int 1900 append_addr(struct pfr_buffer *b, char *s, int test) 1901 { 1902 char *r; 1903 struct node_host *h, *n; 1904 int rv, not = 0; 1905 1906 for (r = s; *r == '!'; r++) 1907 not = !not; 1908 if ((n = host(r)) == NULL) { 1909 errno = 0; 1910 return (-1); 1911 } 1912 rv = append_addr_host(b, n, test, not); 1913 do { 1914 h = n; 1915 n = n->next; 1916 free(h); 1917 } while (n != NULL); 1918 return (rv); 1919 } 1920 1921 /* 1922 * same as previous function, but with a pre-parsed input and the ability 1923 * to "negate" the result. Does not free the node_host list. 1924 * not: 1925 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1926 */ 1927 int 1928 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1929 { 1930 int bits; 1931 struct pfr_addr addr; 1932 1933 do { 1934 bzero(&addr, sizeof(addr)); 1935 addr.pfra_not = n->not ^ not; 1936 addr.pfra_af = n->af; 1937 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af); 1938 switch (n->af) { 1939 case AF_INET: 1940 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 1941 bits = 32; 1942 break; 1943 case AF_INET6: 1944 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 1945 sizeof(struct in6_addr)); 1946 bits = 128; 1947 break; 1948 default: 1949 errno = EINVAL; 1950 return (-1); 1951 } 1952 if ((test && (not || addr.pfra_net != bits)) || 1953 addr.pfra_net > bits) { 1954 errno = EINVAL; 1955 return (-1); 1956 } 1957 if (pfr_buf_add(b, &addr)) 1958 return (-1); 1959 } while ((n = n->next) != NULL); 1960 1961 return (0); 1962 } 1963 1964 int 1965 pfctl_add_trans(struct pfr_buffer *buf, int rs_num, const char *anchor) 1966 { 1967 struct pfioc_trans_e trans; 1968 1969 bzero(&trans, sizeof(trans)); 1970 trans.rs_num = rs_num; 1971 if (strlcpy(trans.anchor, anchor, 1972 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 1973 errx(1, "pfctl_add_trans: strlcpy"); 1974 1975 return pfr_buf_add(buf, &trans); 1976 } 1977 1978 u_int32_t 1979 pfctl_get_ticket(struct pfr_buffer *buf, int rs_num, const char *anchor) 1980 { 1981 struct pfioc_trans_e *p; 1982 1983 PFRB_FOREACH(p, buf) 1984 if (rs_num == p->rs_num && !strcmp(anchor, p->anchor)) 1985 return (p->ticket); 1986 errx(1, "pfctl_get_ticket: assertion failed"); 1987 } 1988 1989 int 1990 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 1991 { 1992 struct pfioc_trans trans; 1993 1994 bzero(&trans, sizeof(trans)); 1995 trans.size = buf->pfrb_size - from; 1996 trans.esize = sizeof(struct pfioc_trans_e); 1997 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 1998 return ioctl(dev, cmd, &trans); 1999 } 2000