1 /* $OpenBSD: pfctl_parser.c,v 1.298 2014/01/20 02:59:13 henning Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Daniel Hartmeier 5 * Copyright (c) 2002 - 2013 Henning Brauer <henning@openbsd.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * - Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * - Redistributions in binary form must reproduce the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer in the documentation and/or other materials provided 17 * with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 * 32 */ 33 34 #include <sys/types.h> 35 #include <sys/ioctl.h> 36 #include <sys/socket.h> 37 #include <net/if_dl.h> 38 #include <net/if.h> 39 #include <netinet/in.h> 40 #include <netinet/in_systm.h> 41 #include <netinet/ip.h> 42 #include <netinet/ip_icmp.h> 43 #include <netinet/icmp6.h> 44 #include <net/pfvar.h> 45 #include <net/hfsc.h> 46 #include <arpa/inet.h> 47 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <ctype.h> 52 #include <netdb.h> 53 #include <stdarg.h> 54 #include <errno.h> 55 #include <err.h> 56 #include <ifaddrs.h> 57 #include <unistd.h> 58 59 #define SYSLOG_NAMES 60 #include <syslog.h> 61 62 #include "pfctl_parser.h" 63 #include "pfctl.h" 64 65 void print_op (u_int8_t, const char *, const char *); 66 void print_port (u_int8_t, u_int16_t, u_int16_t, const char *, int); 67 void print_ugid (u_int8_t, unsigned, unsigned, const char *, unsigned); 68 void print_flags (u_int8_t); 69 void print_fromto(struct pf_rule_addr *, pf_osfp_t, 70 struct pf_rule_addr *, u_int8_t, u_int8_t, int); 71 void print_bwspec(const char *index, struct pf_queue_bwspec *); 72 void print_scspec(const char *, struct pf_queue_scspec *); 73 int ifa_skip_if(const char *filter, struct node_host *p); 74 75 struct node_host *ifa_grouplookup(const char *, int); 76 struct node_host *host_if(const char *, int); 77 struct node_host *host_v4(const char *, int); 78 struct node_host *host_v6(const char *, int); 79 struct node_host *host_dns(const char *, int, int); 80 81 const char *tcpflags = "FSRPAUEW"; 82 83 static const struct icmptypeent icmp_type[] = { 84 { "echoreq", ICMP_ECHO }, 85 { "echorep", ICMP_ECHOREPLY }, 86 { "unreach", ICMP_UNREACH }, 87 { "squench", ICMP_SOURCEQUENCH }, 88 { "redir", ICMP_REDIRECT }, 89 { "althost", ICMP_ALTHOSTADDR }, 90 { "routeradv", ICMP_ROUTERADVERT }, 91 { "routersol", ICMP_ROUTERSOLICIT }, 92 { "timex", ICMP_TIMXCEED }, 93 { "paramprob", ICMP_PARAMPROB }, 94 { "timereq", ICMP_TSTAMP }, 95 { "timerep", ICMP_TSTAMPREPLY }, 96 { "inforeq", ICMP_IREQ }, 97 { "inforep", ICMP_IREQREPLY }, 98 { "maskreq", ICMP_MASKREQ }, 99 { "maskrep", ICMP_MASKREPLY }, 100 { "trace", ICMP_TRACEROUTE }, 101 { "dataconv", ICMP_DATACONVERR }, 102 { "mobredir", ICMP_MOBILE_REDIRECT }, 103 { "ipv6-where", ICMP_IPV6_WHEREAREYOU }, 104 { "ipv6-here", ICMP_IPV6_IAMHERE }, 105 { "mobregreq", ICMP_MOBILE_REGREQUEST }, 106 { "mobregrep", ICMP_MOBILE_REGREPLY }, 107 { "skip", ICMP_SKIP }, 108 { "photuris", ICMP_PHOTURIS } 109 }; 110 111 static const struct icmptypeent icmp6_type[] = { 112 { "unreach", ICMP6_DST_UNREACH }, 113 { "toobig", ICMP6_PACKET_TOO_BIG }, 114 { "timex", ICMP6_TIME_EXCEEDED }, 115 { "paramprob", ICMP6_PARAM_PROB }, 116 { "echoreq", ICMP6_ECHO_REQUEST }, 117 { "echorep", ICMP6_ECHO_REPLY }, 118 { "groupqry", ICMP6_MEMBERSHIP_QUERY }, 119 { "listqry", MLD_LISTENER_QUERY }, 120 { "grouprep", ICMP6_MEMBERSHIP_REPORT }, 121 { "listenrep", MLD_LISTENER_REPORT }, 122 { "groupterm", ICMP6_MEMBERSHIP_REDUCTION }, 123 { "listendone", MLD_LISTENER_DONE }, 124 { "routersol", ND_ROUTER_SOLICIT }, 125 { "routeradv", ND_ROUTER_ADVERT }, 126 { "neighbrsol", ND_NEIGHBOR_SOLICIT }, 127 { "neighbradv", ND_NEIGHBOR_ADVERT }, 128 { "redir", ND_REDIRECT }, 129 { "routrrenum", ICMP6_ROUTER_RENUMBERING }, 130 { "wrureq", ICMP6_WRUREQUEST }, 131 { "wrurep", ICMP6_WRUREPLY }, 132 { "fqdnreq", ICMP6_FQDN_QUERY }, 133 { "fqdnrep", ICMP6_FQDN_REPLY }, 134 { "niqry", ICMP6_NI_QUERY }, 135 { "nirep", ICMP6_NI_REPLY }, 136 { "mtraceresp", MLD_MTRACE_RESP }, 137 { "mtrace", MLD_MTRACE } 138 }; 139 140 static const struct icmpcodeent icmp_code[] = { 141 { "net-unr", ICMP_UNREACH, ICMP_UNREACH_NET }, 142 { "host-unr", ICMP_UNREACH, ICMP_UNREACH_HOST }, 143 { "proto-unr", ICMP_UNREACH, ICMP_UNREACH_PROTOCOL }, 144 { "port-unr", ICMP_UNREACH, ICMP_UNREACH_PORT }, 145 { "needfrag", ICMP_UNREACH, ICMP_UNREACH_NEEDFRAG }, 146 { "srcfail", ICMP_UNREACH, ICMP_UNREACH_SRCFAIL }, 147 { "net-unk", ICMP_UNREACH, ICMP_UNREACH_NET_UNKNOWN }, 148 { "host-unk", ICMP_UNREACH, ICMP_UNREACH_HOST_UNKNOWN }, 149 { "isolate", ICMP_UNREACH, ICMP_UNREACH_ISOLATED }, 150 { "net-prohib", ICMP_UNREACH, ICMP_UNREACH_NET_PROHIB }, 151 { "host-prohib", ICMP_UNREACH, ICMP_UNREACH_HOST_PROHIB }, 152 { "net-tos", ICMP_UNREACH, ICMP_UNREACH_TOSNET }, 153 { "host-tos", ICMP_UNREACH, ICMP_UNREACH_TOSHOST }, 154 { "filter-prohib", ICMP_UNREACH, ICMP_UNREACH_FILTER_PROHIB }, 155 { "host-preced", ICMP_UNREACH, ICMP_UNREACH_HOST_PRECEDENCE }, 156 { "cutoff-preced", ICMP_UNREACH, ICMP_UNREACH_PRECEDENCE_CUTOFF }, 157 { "redir-net", ICMP_REDIRECT, ICMP_REDIRECT_NET }, 158 { "redir-host", ICMP_REDIRECT, ICMP_REDIRECT_HOST }, 159 { "redir-tos-net", ICMP_REDIRECT, ICMP_REDIRECT_TOSNET }, 160 { "redir-tos-host", ICMP_REDIRECT, ICMP_REDIRECT_TOSHOST }, 161 { "normal-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NORMAL }, 162 { "common-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NOROUTE_COMMON }, 163 { "transit", ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS }, 164 { "reassemb", ICMP_TIMXCEED, ICMP_TIMXCEED_REASS }, 165 { "badhead", ICMP_PARAMPROB, ICMP_PARAMPROB_ERRATPTR }, 166 { "optmiss", ICMP_PARAMPROB, ICMP_PARAMPROB_OPTABSENT }, 167 { "badlen", ICMP_PARAMPROB, ICMP_PARAMPROB_LENGTH }, 168 { "unknown-ind", ICMP_PHOTURIS, ICMP_PHOTURIS_UNKNOWN_INDEX }, 169 { "auth-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_AUTH_FAILED }, 170 { "decrypt-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_DECRYPT_FAILED } 171 }; 172 173 static const struct icmpcodeent icmp6_code[] = { 174 { "admin-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN }, 175 { "noroute-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOROUTE }, 176 { "notnbr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOTNEIGHBOR }, 177 { "beyond-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_BEYONDSCOPE }, 178 { "addr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADDR }, 179 { "port-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOPORT }, 180 { "transit", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_TRANSIT }, 181 { "reassemb", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_REASSEMBLY }, 182 { "badhead", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_HEADER }, 183 { "nxthdr", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_NEXTHEADER }, 184 { "redironlink", ND_REDIRECT, ND_REDIRECT_ONLINK }, 185 { "redirrouter", ND_REDIRECT, ND_REDIRECT_ROUTER } 186 }; 187 188 const struct pf_timeout pf_timeouts[] = { 189 { "tcp.first", PFTM_TCP_FIRST_PACKET }, 190 { "tcp.opening", PFTM_TCP_OPENING }, 191 { "tcp.established", PFTM_TCP_ESTABLISHED }, 192 { "tcp.closing", PFTM_TCP_CLOSING }, 193 { "tcp.finwait", PFTM_TCP_FIN_WAIT }, 194 { "tcp.closed", PFTM_TCP_CLOSED }, 195 { "tcp.tsdiff", PFTM_TS_DIFF }, 196 { "udp.first", PFTM_UDP_FIRST_PACKET }, 197 { "udp.single", PFTM_UDP_SINGLE }, 198 { "udp.multiple", PFTM_UDP_MULTIPLE }, 199 { "icmp.first", PFTM_ICMP_FIRST_PACKET }, 200 { "icmp.error", PFTM_ICMP_ERROR_REPLY }, 201 { "other.first", PFTM_OTHER_FIRST_PACKET }, 202 { "other.single", PFTM_OTHER_SINGLE }, 203 { "other.multiple", PFTM_OTHER_MULTIPLE }, 204 { "frag", PFTM_FRAG }, 205 { "interval", PFTM_INTERVAL }, 206 { "adaptive.start", PFTM_ADAPTIVE_START }, 207 { "adaptive.end", PFTM_ADAPTIVE_END }, 208 { "src.track", PFTM_SRC_NODE }, 209 { NULL, 0 } 210 }; 211 212 enum { PF_POOL_ROUTE, PF_POOL_NAT, PF_POOL_RDR }; 213 214 const struct icmptypeent * 215 geticmptypebynumber(u_int8_t type, sa_family_t af) 216 { 217 unsigned int i; 218 219 if (af != AF_INET6) { 220 for (i=0; i < (sizeof (icmp_type) / sizeof(icmp_type[0])); 221 i++) { 222 if (type == icmp_type[i].type) 223 return (&icmp_type[i]); 224 } 225 } else { 226 for (i=0; i < (sizeof (icmp6_type) / 227 sizeof(icmp6_type[0])); i++) { 228 if (type == icmp6_type[i].type) 229 return (&icmp6_type[i]); 230 } 231 } 232 return (NULL); 233 } 234 235 const struct icmptypeent * 236 geticmptypebyname(char *w, sa_family_t af) 237 { 238 unsigned int i; 239 240 if (af != AF_INET6) { 241 for (i=0; i < (sizeof (icmp_type) / sizeof(icmp_type[0])); 242 i++) { 243 if (!strcmp(w, icmp_type[i].name)) 244 return (&icmp_type[i]); 245 } 246 } else { 247 for (i=0; i < (sizeof (icmp6_type) / 248 sizeof(icmp6_type[0])); i++) { 249 if (!strcmp(w, icmp6_type[i].name)) 250 return (&icmp6_type[i]); 251 } 252 } 253 return (NULL); 254 } 255 256 const struct icmpcodeent * 257 geticmpcodebynumber(u_int8_t type, u_int8_t code, sa_family_t af) 258 { 259 unsigned int i; 260 261 if (af != AF_INET6) { 262 for (i=0; i < (sizeof (icmp_code) / sizeof(icmp_code[0])); 263 i++) { 264 if (type == icmp_code[i].type && 265 code == icmp_code[i].code) 266 return (&icmp_code[i]); 267 } 268 } else { 269 for (i=0; i < (sizeof (icmp6_code) / 270 sizeof(icmp6_code[0])); i++) { 271 if (type == icmp6_code[i].type && 272 code == icmp6_code[i].code) 273 return (&icmp6_code[i]); 274 } 275 } 276 return (NULL); 277 } 278 279 const struct icmpcodeent * 280 geticmpcodebyname(u_long type, char *w, sa_family_t af) 281 { 282 unsigned int i; 283 284 if (af != AF_INET6) { 285 for (i=0; i < (sizeof (icmp_code) / sizeof(icmp_code[0])); 286 i++) { 287 if (type == icmp_code[i].type && 288 !strcmp(w, icmp_code[i].name)) 289 return (&icmp_code[i]); 290 } 291 } else { 292 for (i=0; i < (sizeof (icmp6_code) / 293 sizeof(icmp6_code[0])); i++) { 294 if (type == icmp6_code[i].type && 295 !strcmp(w, icmp6_code[i].name)) 296 return (&icmp6_code[i]); 297 } 298 } 299 return (NULL); 300 } 301 302 /* 303 * Decode a symbolic name to a numeric value. 304 * From syslogd. 305 */ 306 int 307 string_to_loglevel(const char *name) 308 { 309 CODE *c; 310 char *p, buf[40]; 311 312 if (isdigit((unsigned char)*name)) 313 return (atoi(name)); 314 315 for (p = buf; *name && p < &buf[sizeof(buf) - 1]; p++, name++) { 316 if (isupper((unsigned char)*name)) 317 *p = tolower((unsigned char)*name); 318 else 319 *p = *name; 320 } 321 *p = '\0'; 322 for (c = prioritynames; c->c_name; c++) 323 if (!strcmp(buf, c->c_name) && c->c_val != INTERNAL_NOPRI) 324 return (c->c_val); 325 326 return (-1); 327 } 328 329 const char * 330 loglevel_to_string(int level) 331 { 332 CODE *c; 333 334 for (c = prioritynames; c->c_name; c++) 335 if (c->c_val == level) 336 return (c->c_name); 337 338 return ("unknown"); 339 } 340 341 void 342 print_op(u_int8_t op, const char *a1, const char *a2) 343 { 344 if (op == PF_OP_IRG) 345 printf(" %s >< %s", a1, a2); 346 else if (op == PF_OP_XRG) 347 printf(" %s <> %s", a1, a2); 348 else if (op == PF_OP_EQ) 349 printf(" = %s", a1); 350 else if (op == PF_OP_NE) 351 printf(" != %s", a1); 352 else if (op == PF_OP_LT) 353 printf(" < %s", a1); 354 else if (op == PF_OP_LE) 355 printf(" <= %s", a1); 356 else if (op == PF_OP_GT) 357 printf(" > %s", a1); 358 else if (op == PF_OP_GE) 359 printf(" >= %s", a1); 360 else if (op == PF_OP_RRG) 361 printf(" %s:%s", a1, a2); 362 } 363 364 void 365 print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int opts) 366 { 367 char a1[6], a2[6]; 368 struct servent *s = NULL; 369 370 if (opts & PF_OPT_PORTNAMES) 371 s = getservbyport(p1, proto); 372 p1 = ntohs(p1); 373 p2 = ntohs(p2); 374 snprintf(a1, sizeof(a1), "%u", p1); 375 snprintf(a2, sizeof(a2), "%u", p2); 376 printf(" port"); 377 if (s != NULL && (op == PF_OP_EQ || op == PF_OP_NE)) 378 print_op(op, s->s_name, a2); 379 else 380 print_op(op, a1, a2); 381 } 382 383 void 384 print_ugid(u_int8_t op, unsigned u1, unsigned u2, const char *t, unsigned umax) 385 { 386 char a1[11], a2[11]; 387 388 snprintf(a1, sizeof(a1), "%u", u1); 389 snprintf(a2, sizeof(a2), "%u", u2); 390 printf(" %s", t); 391 if (u1 == umax && (op == PF_OP_EQ || op == PF_OP_NE)) 392 print_op(op, "unknown", a2); 393 else 394 print_op(op, a1, a2); 395 } 396 397 void 398 print_flags(u_int8_t f) 399 { 400 int i; 401 402 for (i = 0; tcpflags[i]; ++i) 403 if (f & (1 << i)) 404 printf("%c", tcpflags[i]); 405 } 406 407 void 408 print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst, 409 sa_family_t af, u_int8_t proto, int opts) 410 { 411 char buf[PF_OSFP_LEN*3]; 412 int verbose = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 413 if (src->addr.type == PF_ADDR_ADDRMASK && 414 dst->addr.type == PF_ADDR_ADDRMASK && 415 PF_AZERO(&src->addr.v.a.addr, AF_INET6) && 416 PF_AZERO(&src->addr.v.a.mask, AF_INET6) && 417 PF_AZERO(&dst->addr.v.a.addr, AF_INET6) && 418 PF_AZERO(&dst->addr.v.a.mask, AF_INET6) && 419 !src->neg && !dst->neg && 420 !src->port_op && !dst->port_op && 421 osfp == PF_OSFP_ANY) 422 printf(" all"); 423 else { 424 printf(" from "); 425 if (src->neg) 426 printf("! "); 427 print_addr(&src->addr, af, verbose); 428 if (src->port_op) 429 print_port(src->port_op, src->port[0], 430 src->port[1], 431 proto == IPPROTO_TCP ? "tcp" : "udp", opts); 432 if (osfp != PF_OSFP_ANY) 433 printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf, 434 sizeof(buf))); 435 436 printf(" to "); 437 if (dst->neg) 438 printf("! "); 439 print_addr(&dst->addr, af, verbose); 440 if (dst->port_op) 441 print_port(dst->port_op, dst->port[0], 442 dst->port[1], 443 proto == IPPROTO_TCP ? "tcp" : "udp", opts); 444 } 445 } 446 447 void 448 print_pool(struct pf_pool *pool, u_int16_t p1, u_int16_t p2, 449 sa_family_t af, int id, int verbose) 450 { 451 if (pool->ifname[0]) { 452 if (!PF_AZERO(&pool->addr.v.a.addr, af)) { 453 print_addr(&pool->addr, af, verbose); 454 printf("@"); 455 } 456 printf("%s", pool->ifname); 457 } else 458 print_addr(&pool->addr, af, verbose); 459 switch (id) { 460 case PF_POOL_NAT: 461 if ((p1 != PF_NAT_PROXY_PORT_LOW || 462 p2 != PF_NAT_PROXY_PORT_HIGH) && (p1 != 0 || p2 != 0)) { 463 if (p1 == p2) 464 printf(" port %u", p1); 465 else 466 printf(" port %u:%u", p1, p2); 467 } 468 break; 469 case PF_POOL_RDR: 470 if (p1) { 471 printf(" port %u", p1); 472 if (p2 && (p2 != p1)) 473 printf(":%u", p2); 474 } 475 break; 476 default: 477 break; 478 } 479 switch (pool->opts & PF_POOL_TYPEMASK) { 480 case PF_POOL_NONE: 481 break; 482 case PF_POOL_BITMASK: 483 printf(" bitmask"); 484 break; 485 case PF_POOL_RANDOM: 486 printf(" random"); 487 break; 488 case PF_POOL_SRCHASH: 489 printf(" source-hash 0x%08x%08x%08x%08x", 490 pool->key.key32[0], pool->key.key32[1], 491 pool->key.key32[2], pool->key.key32[3]); 492 break; 493 case PF_POOL_ROUNDROBIN: 494 printf(" round-robin"); 495 break; 496 case PF_POOL_LEASTSTATES: 497 printf(" least-states"); 498 break; 499 } 500 if (pool->opts & PF_POOL_STICKYADDR) 501 printf(" sticky-address"); 502 if (id == PF_POOL_NAT && p1 == 0 && p2 == 0) 503 printf(" static-port"); 504 } 505 506 const char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES; 507 const char *pf_lcounters[LCNT_MAX+1] = LCNT_NAMES; 508 const char *pf_fcounters[FCNT_MAX+1] = FCNT_NAMES; 509 const char *pf_scounters[FCNT_MAX+1] = FCNT_NAMES; 510 511 void 512 print_status(struct pf_status *s, int opts) 513 { 514 char statline[80], *running, *debug; 515 time_t runtime; 516 int i; 517 char buf[PF_MD5_DIGEST_LENGTH * 2 + 1]; 518 static const char hex[] = "0123456789abcdef"; 519 520 runtime = time(NULL) - s->since; 521 running = s->running ? "Enabled" : "Disabled"; 522 523 if (s->since) { 524 unsigned int sec, min, hrs; 525 time_t day = runtime; 526 527 sec = day % 60; 528 day /= 60; 529 min = day % 60; 530 day /= 60; 531 hrs = day % 24; 532 day /= 24; 533 snprintf(statline, sizeof(statline), 534 "Status: %s for %lld days %.2u:%.2u:%.2u", 535 running, (long long)day, hrs, min, sec); 536 } else 537 snprintf(statline, sizeof(statline), "Status: %s", running); 538 printf("%-44s", statline); 539 asprintf(&debug, "Debug: %s", loglevel_to_string(s->debug)); 540 printf("%15s\n\n", debug); 541 free(debug); 542 543 if (opts & PF_OPT_VERBOSE) { 544 printf("Hostid: 0x%08x\n", ntohl(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 %14u %14s\n", "current entries", s->states, ""); 580 for (i = 0; i < FCNT_MAX; i++) { 581 printf(" %-25s %14llu ", pf_fcounters[i], 582 (unsigned long long)s->fcounters[i]); 583 if (runtime > 0) 584 printf("%14.1f/s\n", 585 (double)s->fcounters[i] / (double)runtime); 586 else 587 printf("%14s\n", ""); 588 } 589 if (opts & PF_OPT_VERBOSE) { 590 printf("Source Tracking Table\n"); 591 printf(" %-25s %14u %14s\n", "current entries", 592 s->src_nodes, ""); 593 for (i = 0; i < SCNT_MAX; i++) { 594 printf(" %-25s %14lld ", pf_scounters[i], 595 s->scounters[i]); 596 if (runtime > 0) 597 printf("%14.1f/s\n", 598 (double)s->scounters[i] / (double)runtime); 599 else 600 printf("%14s\n", ""); 601 } 602 } 603 printf("Counters\n"); 604 for (i = 0; i < PFRES_MAX; i++) { 605 printf(" %-25s %14llu ", pf_reasons[i], 606 (unsigned long long)s->counters[i]); 607 if (runtime > 0) 608 printf("%14.1f/s\n", 609 (double)s->counters[i] / (double)runtime); 610 else 611 printf("%14s\n", ""); 612 } 613 if (opts & PF_OPT_VERBOSE) { 614 printf("Limit Counters\n"); 615 for (i = 0; i < LCNT_MAX; i++) { 616 printf(" %-25s %14lld ", pf_lcounters[i], 617 s->lcounters[i]); 618 if (runtime > 0) 619 printf("%14.1f/s\n", 620 (double)s->lcounters[i] / (double)runtime); 621 else 622 printf("%14s\n", ""); 623 } 624 } 625 } 626 627 void 628 print_src_node(struct pf_src_node *sn, int opts) 629 { 630 struct pf_addr_wrap aw; 631 int min, sec; 632 633 memset(&aw, 0, sizeof(aw)); 634 if (sn->af == AF_INET) 635 aw.v.a.mask.addr32[0] = 0xffffffff; 636 else 637 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask)); 638 639 aw.v.a.addr = sn->addr; 640 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2); 641 642 if (!PF_AZERO(&sn->raddr, sn->af)) { 643 if (sn->type == PF_SN_NAT) 644 printf(" nat-to "); 645 else if (sn->type == PF_SN_RDR) 646 printf(" rdr-to "); 647 else if (sn->type == PF_SN_ROUTE) 648 printf(" route-to "); 649 else 650 printf(" ??? (%u) ", sn->type); 651 aw.v.a.addr = sn->raddr; 652 print_addr(&aw, sn->naf ? sn->naf : sn->af, 653 opts & PF_OPT_VERBOSE2); 654 } 655 656 printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states, 657 sn->conn, sn->conn_rate.count / 1000, 658 (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds); 659 if (opts & PF_OPT_VERBOSE) { 660 sec = sn->creation % 60; 661 sn->creation /= 60; 662 min = sn->creation % 60; 663 sn->creation /= 60; 664 printf(" age %.2u:%.2u:%.2u", sn->creation, min, sec); 665 if (sn->states == 0) { 666 sec = sn->expire % 60; 667 sn->expire /= 60; 668 min = sn->expire % 60; 669 sn->expire /= 60; 670 printf(", expires in %.2u:%.2u:%.2u", 671 sn->expire, min, sec); 672 } 673 printf(", %llu pkts, %llu bytes", 674 sn->packets[0] + sn->packets[1], 675 sn->bytes[0] + sn->bytes[1]); 676 if (sn->rule.nr != -1) 677 printf(", rule %u", sn->rule.nr); 678 printf("\n"); 679 } 680 } 681 682 void 683 print_rule(struct pf_rule *r, const char *anchor_call, int opts) 684 { 685 static const char *actiontypes[] = { "pass", "block", "scrub", 686 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr", 687 "", "", "match"}; 688 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 689 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 690 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 691 int i, ropts; 692 int verbose = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 693 char *p; 694 695 if (verbose) 696 printf("@%d ", r->nr); 697 if (r->action > PF_MATCH) 698 printf("action(%d)", r->action); 699 else if (anchor_call[0]) { 700 p = strrchr(anchor_call, '/'); 701 if (p ? p[1] == '_' : anchor_call[0] == '_') 702 printf("%s", anchortypes[r->action]); 703 else 704 printf("%s \"%s\"", anchortypes[r->action], 705 anchor_call); 706 } else 707 printf("%s", actiontypes[r->action]); 708 if (r->action == PF_DROP) { 709 if (r->rule_flag & PFRULE_RETURN) 710 printf(" return"); 711 else if (r->rule_flag & PFRULE_RETURNRST) { 712 if (!r->return_ttl) 713 printf(" return-rst"); 714 else 715 printf(" return-rst(ttl %d)", r->return_ttl); 716 } else if (r->rule_flag & PFRULE_RETURNICMP) { 717 const struct icmpcodeent *ic, *ic6; 718 719 ic = geticmpcodebynumber(r->return_icmp >> 8, 720 r->return_icmp & 255, AF_INET); 721 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 722 r->return_icmp6 & 255, AF_INET6); 723 724 switch (r->af) { 725 case AF_INET: 726 printf(" return-icmp"); 727 if (ic == NULL) 728 printf("(%u)", r->return_icmp & 255); 729 else 730 printf("(%s)", ic->name); 731 break; 732 case AF_INET6: 733 printf(" return-icmp6"); 734 if (ic6 == NULL) 735 printf("(%u)", r->return_icmp6 & 255); 736 else 737 printf("(%s)", ic6->name); 738 break; 739 default: 740 printf(" return-icmp"); 741 if (ic == NULL) 742 printf("(%u, ", r->return_icmp & 255); 743 else 744 printf("(%s, ", ic->name); 745 if (ic6 == NULL) 746 printf("%u)", r->return_icmp6 & 255); 747 else 748 printf("%s)", ic6->name); 749 break; 750 } 751 } else 752 printf(" drop"); 753 } 754 if (r->direction == PF_IN) 755 printf(" in"); 756 else if (r->direction == PF_OUT) 757 printf(" out"); 758 if (r->log) { 759 printf(" log"); 760 if (r->log & ~PF_LOG || r->logif) { 761 int count = 0; 762 763 printf(" ("); 764 if (r->log & PF_LOG_ALL) 765 printf("%sall", count++ ? ", " : ""); 766 if (r->log & PF_LOG_MATCHES) 767 printf("%smatches", count++ ? ", " : ""); 768 if (r->log & PF_LOG_SOCKET_LOOKUP) 769 printf("%suser", count++ ? ", " : ""); 770 if (r->logif) 771 printf("%sto pflog%u", count++ ? ", " : "", 772 r->logif); 773 printf(")"); 774 } 775 } 776 if (r->quick) 777 printf(" quick"); 778 if (r->ifname[0]) { 779 if (r->ifnot) 780 printf(" on ! %s", r->ifname); 781 else 782 printf(" on %s", r->ifname); 783 } 784 if (r->onrdomain >= 0) { 785 if (r->ifnot) 786 printf(" on ! rdomain %d", r->onrdomain); 787 else 788 printf(" on rdomain %d", r->onrdomain); 789 } 790 if (r->af) { 791 if (r->af == AF_INET) 792 printf(" inet"); 793 else 794 printf(" inet6"); 795 } 796 if (r->proto) { 797 struct protoent *p; 798 799 if ((p = getprotobynumber(r->proto)) != NULL) 800 printf(" proto %s", p->p_name); 801 else 802 printf(" proto %u", r->proto); 803 } 804 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 805 opts); 806 if (r->rcv_ifname[0]) 807 printf(" %sreceived-on %s", r->rcvifnot ? "!" : "", 808 r->rcv_ifname); 809 if (r->uid.op) 810 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 811 UID_MAX); 812 if (r->gid.op) 813 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 814 GID_MAX); 815 if (r->flags || r->flagset) { 816 printf(" flags "); 817 print_flags(r->flags); 818 printf("/"); 819 print_flags(r->flagset); 820 } else if ((r->action == PF_PASS || r->action == PF_MATCH) && 821 (!r->proto || r->proto == IPPROTO_TCP) && 822 !(r->rule_flag & PFRULE_FRAGMENT) && 823 !anchor_call[0] && r->keep_state) 824 printf(" flags any"); 825 if (r->type) { 826 const struct icmptypeent *it; 827 828 it = geticmptypebynumber(r->type-1, r->af); 829 if (r->af != AF_INET6) 830 printf(" icmp-type"); 831 else 832 printf(" icmp6-type"); 833 if (it != NULL) 834 printf(" %s", it->name); 835 else 836 printf(" %u", r->type-1); 837 if (r->code) { 838 const struct icmpcodeent *ic; 839 840 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 841 if (ic != NULL) 842 printf(" code %s", ic->name); 843 else 844 printf(" code %u", r->code-1); 845 } 846 } 847 if (r->tos) 848 printf(" tos 0x%2.2x", r->tos); 849 850 if (r->scrub_flags & PFSTATE_SETMASK || r->qname[0]) { 851 char *comma = ""; 852 printf(" set ("); 853 if (r->scrub_flags & PFSTATE_SETPRIO) { 854 if (r->set_prio[0] == r->set_prio[1]) 855 printf("%s prio %u", comma, r->set_prio[0]); 856 else 857 printf("%s prio(%u, %u)", comma, r->set_prio[0], 858 r->set_prio[1]); 859 comma = ","; 860 } 861 if (r->qname[0]) { 862 if (r->pqname[0]) 863 printf("%s queue(%s, %s)", comma, r->qname, 864 r->pqname); 865 else 866 printf("%s queue %s", comma, r->qname); 867 comma = ","; 868 } 869 if (r->scrub_flags & PFSTATE_SETTOS) { 870 printf("%s tos 0x%2.2x", comma, r->set_tos); 871 comma = ","; 872 } 873 printf(" )"); 874 } 875 876 ropts = 0; 877 if (r->max_states || r->max_src_nodes || r->max_src_states) 878 ropts = 1; 879 if (r->rule_flag & PFRULE_NOSYNC) 880 ropts = 1; 881 if (r->rule_flag & PFRULE_SRCTRACK) 882 ropts = 1; 883 if (r->rule_flag & PFRULE_IFBOUND) 884 ropts = 1; 885 if (r->rule_flag & PFRULE_STATESLOPPY) 886 ropts = 1; 887 if (r->rule_flag & PFRULE_PFLOW) 888 ropts = 1; 889 for (i = 0; !ropts && i < PFTM_MAX; ++i) 890 if (r->timeout[i]) 891 ropts = 1; 892 893 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 894 printf(" no state"); 895 else if (r->keep_state == PF_STATE_NORMAL && ropts) 896 printf(" keep state"); 897 else if (r->keep_state == PF_STATE_MODULATE) 898 printf(" modulate state"); 899 else if (r->keep_state == PF_STATE_SYNPROXY) 900 printf(" synproxy state"); 901 if (r->prob) { 902 char buf[20]; 903 904 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 905 for (i = strlen(buf)-1; i > 0; i--) { 906 if (buf[i] == '0') 907 buf[i] = '\0'; 908 else { 909 if (buf[i] == '.') 910 buf[i] = '\0'; 911 break; 912 } 913 } 914 printf(" probability %s%%", buf); 915 } 916 if (ropts) { 917 printf(" ("); 918 if (r->max_states) { 919 printf("max %u", r->max_states); 920 ropts = 0; 921 } 922 if (r->rule_flag & PFRULE_NOSYNC) { 923 if (!ropts) 924 printf(", "); 925 printf("no-sync"); 926 ropts = 0; 927 } 928 if (r->rule_flag & PFRULE_SRCTRACK) { 929 if (!ropts) 930 printf(", "); 931 printf("source-track"); 932 if (r->rule_flag & PFRULE_RULESRCTRACK) 933 printf(" rule"); 934 else 935 printf(" global"); 936 ropts = 0; 937 } 938 if (r->max_src_states) { 939 if (!ropts) 940 printf(", "); 941 printf("max-src-states %u", r->max_src_states); 942 ropts = 0; 943 } 944 if (r->max_src_conn) { 945 if (!ropts) 946 printf(", "); 947 printf("max-src-conn %u", r->max_src_conn); 948 ropts = 0; 949 } 950 if (r->max_src_conn_rate.limit) { 951 if (!ropts) 952 printf(", "); 953 printf("max-src-conn-rate %u/%u", 954 r->max_src_conn_rate.limit, 955 r->max_src_conn_rate.seconds); 956 ropts = 0; 957 } 958 if (r->max_src_nodes) { 959 if (!ropts) 960 printf(", "); 961 printf("max-src-nodes %u", r->max_src_nodes); 962 ropts = 0; 963 } 964 if (r->overload_tblname[0]) { 965 if (!ropts) 966 printf(", "); 967 printf("overload <%s>", r->overload_tblname); 968 if (r->flush) 969 printf(" flush"); 970 if (r->flush & PF_FLUSH_GLOBAL) 971 printf(" global"); 972 } 973 if (r->rule_flag & PFRULE_IFBOUND) { 974 if (!ropts) 975 printf(", "); 976 printf("if-bound"); 977 ropts = 0; 978 } 979 if (r->rule_flag & PFRULE_STATESLOPPY) { 980 if (!ropts) 981 printf(", "); 982 printf("sloppy"); 983 ropts = 0; 984 } 985 if (r->rule_flag & PFRULE_PFLOW) { 986 if (!ropts) 987 printf(", "); 988 printf("pflow"); 989 ropts = 0; 990 } 991 for (i = 0; i < PFTM_MAX; ++i) 992 if (r->timeout[i]) { 993 int j; 994 995 if (!ropts) 996 printf(", "); 997 ropts = 0; 998 for (j = 0; pf_timeouts[j].name != NULL; 999 ++j) 1000 if (pf_timeouts[j].timeout == i) 1001 break; 1002 printf("%s %u", pf_timeouts[j].name == NULL ? 1003 "inv.timeout" : pf_timeouts[j].name, 1004 r->timeout[i]); 1005 } 1006 printf(")"); 1007 } 1008 1009 if (r->rule_flag & PFRULE_FRAGMENT) 1010 printf(" fragment"); 1011 1012 if (r->scrub_flags & PFSTATE_SCRUBMASK || r->min_ttl || r->max_mss) { 1013 printf(" scrub ("); 1014 ropts = 1; 1015 if (r->scrub_flags & PFSTATE_NODF) { 1016 printf("no-df"); 1017 ropts = 0; 1018 } 1019 if (r->scrub_flags & PFSTATE_RANDOMID) { 1020 if (!ropts) 1021 printf(" "); 1022 printf("random-id"); 1023 ropts = 0; 1024 } 1025 if (r->min_ttl) { 1026 if (!ropts) 1027 printf(" "); 1028 printf("min-ttl %d", r->min_ttl); 1029 ropts = 0; 1030 } 1031 if (r->scrub_flags & PFSTATE_SCRUB_TCP) { 1032 if (!ropts) 1033 printf(" "); 1034 printf("reassemble tcp"); 1035 ropts = 0; 1036 } 1037 if (r->max_mss) { 1038 if (!ropts) 1039 printf(" "); 1040 printf("max-mss %d", r->max_mss); 1041 ropts = 0; 1042 } 1043 printf(")"); 1044 } 1045 1046 if (r->allow_opts) 1047 printf(" allow-opts"); 1048 if (r->label[0]) 1049 printf(" label \"%s\"", r->label); 1050 if (r->rule_flag & PFRULE_ONCE) 1051 printf(" once"); 1052 if (r->tagname[0]) 1053 printf(" tag %s", r->tagname); 1054 if (r->match_tagname[0]) { 1055 if (r->match_tag_not) 1056 printf(" !"); 1057 printf(" tagged %s", r->match_tagname); 1058 } 1059 if (r->rtableid != -1) 1060 printf(" rtable %u", r->rtableid); 1061 if (r->divert.port) { 1062 if (PF_AZERO(&r->divert.addr, AF_INET6)) { 1063 printf(" divert-reply"); 1064 } else { 1065 /* XXX cut&paste from print_addr */ 1066 char buf[48]; 1067 1068 printf(" divert-to "); 1069 if (inet_ntop(r->af, &r->divert.addr, buf, 1070 sizeof(buf)) == NULL) 1071 printf("?"); 1072 else 1073 printf("%s", buf); 1074 printf(" port %u", ntohs(r->divert.port)); 1075 } 1076 } 1077 if (r->divert_packet.port) 1078 printf(" divert-packet port %u", ntohs(r->divert_packet.port)); 1079 1080 if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE && 1081 r->rule_flag & PFRULE_AFTO) { 1082 printf(" af-to %s from ", r->naf == AF_INET ? "inet" : "inet6"); 1083 print_pool(&r->nat, r->nat.proxy_port[0], 1084 r->nat.proxy_port[1], r->naf ? r->naf : r->af, 1085 PF_POOL_NAT, verbose); 1086 if (r->rdr.addr.type != PF_ADDR_NONE) { 1087 printf(" to "); 1088 print_pool(&r->rdr, r->rdr.proxy_port[0], 1089 r->rdr.proxy_port[1], r->naf ? r->naf : r->af, 1090 PF_POOL_RDR, verbose); 1091 } 1092 } else if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE) { 1093 printf (" nat-to "); 1094 print_pool(&r->nat, r->nat.proxy_port[0], 1095 r->nat.proxy_port[1], r->naf ? r->naf : r->af, 1096 PF_POOL_NAT, verbose); 1097 } else if (!anchor_call[0] && r->rdr.addr.type != PF_ADDR_NONE) { 1098 printf (" rdr-to "); 1099 print_pool(&r->rdr, r->rdr.proxy_port[0], 1100 r->rdr.proxy_port[1], r->af, PF_POOL_RDR, verbose); 1101 } 1102 if (r->rt) { 1103 if (r->rt == PF_ROUTETO) 1104 printf(" route-to"); 1105 else if (r->rt == PF_REPLYTO) 1106 printf(" reply-to"); 1107 else if (r->rt == PF_DUPTO) 1108 printf(" dup-to"); 1109 printf(" "); 1110 print_pool(&r->route, 0, 0, r->af, PF_POOL_ROUTE, verbose); 1111 } 1112 } 1113 1114 void 1115 print_tabledef(const char *name, int flags, int addrs, 1116 struct node_tinithead *nodes) 1117 { 1118 struct node_tinit *ti, *nti; 1119 struct node_host *h; 1120 1121 printf("table <%s>", name); 1122 if (flags & PFR_TFLAG_CONST) 1123 printf(" const"); 1124 if (flags & PFR_TFLAG_PERSIST) 1125 printf(" persist"); 1126 if (flags & PFR_TFLAG_COUNTERS) 1127 printf(" counters"); 1128 SIMPLEQ_FOREACH(ti, nodes, entries) { 1129 if (ti->file) { 1130 printf(" file \"%s\"", ti->file); 1131 continue; 1132 } 1133 printf(" {"); 1134 for (;;) { 1135 for (h = ti->host; h != NULL; h = h->next) { 1136 printf(h->not ? " !" : " "); 1137 print_addr(&h->addr, h->af, 0); 1138 if (h->ifname) 1139 printf("@%s", h->ifname); 1140 } 1141 nti = SIMPLEQ_NEXT(ti, entries); 1142 if (nti != NULL && nti->file == NULL) 1143 ti = nti; /* merge lists */ 1144 else 1145 break; 1146 } 1147 printf(" }"); 1148 } 1149 if (addrs && SIMPLEQ_EMPTY(nodes)) 1150 printf(" { }"); 1151 printf("\n"); 1152 } 1153 1154 void 1155 print_bwspec(const char *prefix, struct pf_queue_bwspec *bw) 1156 { 1157 u_int rate; 1158 int i; 1159 static const char unit[] = " KMG"; 1160 1161 if (bw->percent) 1162 printf("%s%u%%", prefix, bw->percent); 1163 else if (bw->absolute) { 1164 rate = bw->absolute; 1165 for (i = 0; rate >= 1000 && i <= 3; i++) 1166 rate /= 1000; 1167 printf("%s%u%c", prefix, rate, unit[i]); 1168 } 1169 } 1170 1171 void 1172 print_scspec(const char *prefix, struct pf_queue_scspec *sc) 1173 { 1174 print_bwspec(prefix, &sc->m2); 1175 if (sc->d) { 1176 printf(" burst "); 1177 print_bwspec("", &sc->m1); 1178 printf(" for %ums", sc->d); 1179 } 1180 } 1181 1182 void 1183 print_queuespec(struct pf_queuespec *q) 1184 { 1185 /* hide the _root_ifname queues */ 1186 if (q->qname[0] == '_') 1187 return; 1188 printf("queue %s", q->qname); 1189 if (q->parent[0] && q->parent[0] != '_') 1190 printf(" parent %s", q->parent); 1191 if (q->ifname[0]) 1192 printf(" on %s", q->ifname); 1193 print_scspec(" bandwidth ", &q->linkshare); 1194 print_scspec(", min ", &q->realtime); 1195 print_scspec(", max ", &q->upperlimit); 1196 if (q->flags & HFSC_DEFAULTCLASS) 1197 printf(" default"); 1198 if (q->qlimit) 1199 printf(" qlimit %u", q->qlimit); 1200 printf("\n"); 1201 } 1202 1203 int 1204 parse_flags(char *s) 1205 { 1206 char *p, *q; 1207 u_int8_t f = 0; 1208 1209 for (p = s; *p; p++) { 1210 if ((q = strchr(tcpflags, *p)) == NULL) 1211 return -1; 1212 else 1213 f |= 1 << (q - tcpflags); 1214 } 1215 return (f ? f : PF_TH_ALL); 1216 } 1217 1218 void 1219 set_ipmask(struct node_host *h, u_int8_t b) 1220 { 1221 struct pf_addr *m, *n; 1222 int i, j = 0; 1223 1224 m = &h->addr.v.a.mask; 1225 memset(m, 0, sizeof(*m)); 1226 1227 while (b >= 32) { 1228 m->addr32[j++] = 0xffffffff; 1229 b -= 32; 1230 } 1231 for (i = 31; i > 31-b; --i) 1232 m->addr32[j] |= (1 << i); 1233 if (b) 1234 m->addr32[j] = htonl(m->addr32[j]); 1235 1236 /* Mask off bits of the address that will never be used. */ 1237 n = &h->addr.v.a.addr; 1238 if (h->addr.type == PF_ADDR_ADDRMASK) 1239 for (i = 0; i < 4; i++) 1240 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1241 } 1242 1243 int 1244 check_netmask(struct node_host *h, sa_family_t af) 1245 { 1246 struct node_host *n = NULL; 1247 struct pf_addr *m; 1248 1249 for (n = h; n != NULL; n = n->next) { 1250 if (h->addr.type == PF_ADDR_TABLE) 1251 continue; 1252 m = &h->addr.v.a.mask; 1253 /* fix up netmask for dynaddr */ 1254 if (af == AF_INET && h->addr.type == PF_ADDR_DYNIFTL && 1255 unmask(m, AF_INET6) > 32) 1256 set_ipmask(n, 32); 1257 /* netmasks > 32 bit are invalid on v4 */ 1258 if (af == AF_INET && 1259 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1260 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1261 unmask(m, AF_INET6)); 1262 return (1); 1263 } 1264 } 1265 return (0); 1266 } 1267 1268 /* interface lookup routines */ 1269 1270 struct node_host *iftab; 1271 1272 void 1273 ifa_load(void) 1274 { 1275 struct ifaddrs *ifap, *ifa; 1276 struct node_host *n = NULL, *h = NULL; 1277 1278 if (getifaddrs(&ifap) < 0) 1279 err(1, "getifaddrs"); 1280 1281 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1282 if (!(ifa->ifa_addr->sa_family == AF_INET || 1283 ifa->ifa_addr->sa_family == AF_INET6 || 1284 ifa->ifa_addr->sa_family == AF_LINK)) 1285 continue; 1286 n = calloc(1, sizeof(struct node_host)); 1287 if (n == NULL) 1288 err(1, "address: calloc"); 1289 n->af = ifa->ifa_addr->sa_family; 1290 n->ifa_flags = ifa->ifa_flags; 1291 #ifdef __KAME__ 1292 if (n->af == AF_INET6 && 1293 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1294 ifa->ifa_addr)->sin6_addr) && 1295 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1296 0) { 1297 struct sockaddr_in6 *sin6; 1298 1299 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1300 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1301 sin6->sin6_addr.s6_addr[3]; 1302 sin6->sin6_addr.s6_addr[2] = 0; 1303 sin6->sin6_addr.s6_addr[3] = 0; 1304 } 1305 #endif 1306 n->ifindex = 0; 1307 if (n->af == AF_INET) { 1308 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *) 1309 ifa->ifa_addr)->sin_addr.s_addr, 1310 sizeof(struct in_addr)); 1311 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *) 1312 ifa->ifa_netmask)->sin_addr.s_addr, 1313 sizeof(struct in_addr)); 1314 if (ifa->ifa_broadaddr != NULL) 1315 memcpy(&n->bcast, &((struct sockaddr_in *) 1316 ifa->ifa_broadaddr)->sin_addr.s_addr, 1317 sizeof(struct in_addr)); 1318 if (ifa->ifa_dstaddr != NULL) 1319 memcpy(&n->peer, &((struct sockaddr_in *) 1320 ifa->ifa_dstaddr)->sin_addr.s_addr, 1321 sizeof(struct in_addr)); 1322 } else if (n->af == AF_INET6) { 1323 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *) 1324 ifa->ifa_addr)->sin6_addr.s6_addr, 1325 sizeof(struct in6_addr)); 1326 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *) 1327 ifa->ifa_netmask)->sin6_addr.s6_addr, 1328 sizeof(struct in6_addr)); 1329 if (ifa->ifa_broadaddr != NULL) 1330 memcpy(&n->bcast, &((struct sockaddr_in6 *) 1331 ifa->ifa_broadaddr)->sin6_addr.s6_addr, 1332 sizeof(struct in6_addr)); 1333 if (ifa->ifa_dstaddr != NULL) 1334 memcpy(&n->peer, &((struct sockaddr_in6 *) 1335 ifa->ifa_dstaddr)->sin6_addr.s6_addr, 1336 sizeof(struct in6_addr)); 1337 n->ifindex = ((struct sockaddr_in6 *) 1338 ifa->ifa_addr)->sin6_scope_id; 1339 } else if (n->af == AF_LINK) { 1340 n->ifindex = ((struct sockaddr_dl *) 1341 ifa->ifa_addr)->sdl_index; 1342 } 1343 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1344 err(1, "ifa_load: strdup"); 1345 n->next = NULL; 1346 n->tail = n; 1347 if (h == NULL) 1348 h = n; 1349 else { 1350 h->tail->next = n; 1351 h->tail = n; 1352 } 1353 } 1354 1355 iftab = h; 1356 freeifaddrs(ifap); 1357 } 1358 1359 unsigned int 1360 ifa_nametoindex(const char *ifa_name) 1361 { 1362 struct node_host *p; 1363 1364 for (p = iftab; p; p = p->next) { 1365 if (p->af == AF_LINK && strcmp(p->ifname, ifa_name) == 0) 1366 return (p->ifindex); 1367 } 1368 errno = ENXIO; 1369 return (0); 1370 } 1371 1372 char * 1373 ifa_indextoname(unsigned int ifindex, char *ifa_name) 1374 { 1375 struct node_host *p; 1376 1377 for (p = iftab; p; p = p->next) { 1378 if (p->af == AF_LINK && ifindex == p->ifindex) { 1379 strlcpy(ifa_name, p->ifname, IFNAMSIZ); 1380 return (ifa_name); 1381 } 1382 } 1383 errno = ENXIO; 1384 return (NULL); 1385 } 1386 1387 struct node_host * 1388 ifa_exists(const char *ifa_name) 1389 { 1390 struct node_host *n; 1391 struct ifgroupreq ifgr; 1392 int s; 1393 1394 if (iftab == NULL) 1395 ifa_load(); 1396 1397 /* check whether this is a group */ 1398 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 1399 err(1, "socket"); 1400 bzero(&ifgr, sizeof(ifgr)); 1401 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1402 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == 0) { 1403 /* fake a node_host */ 1404 if ((n = calloc(1, sizeof(*n))) == NULL) 1405 err(1, "calloc"); 1406 if ((n->ifname = strdup(ifa_name)) == NULL) 1407 err(1, "strdup"); 1408 close(s); 1409 return (n); 1410 } 1411 close(s); 1412 1413 for (n = iftab; n; n = n->next) { 1414 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1415 return (n); 1416 } 1417 1418 return (NULL); 1419 } 1420 1421 struct node_host * 1422 ifa_grouplookup(const char *ifa_name, int flags) 1423 { 1424 struct ifg_req *ifg; 1425 struct ifgroupreq ifgr; 1426 int s, len; 1427 struct node_host *n, *h = NULL; 1428 1429 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 1430 err(1, "socket"); 1431 bzero(&ifgr, sizeof(ifgr)); 1432 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1433 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) { 1434 close(s); 1435 return (NULL); 1436 } 1437 1438 len = ifgr.ifgr_len; 1439 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1440 err(1, "calloc"); 1441 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1442 err(1, "SIOCGIFGMEMB"); 1443 1444 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1445 ifg++) { 1446 len -= sizeof(struct ifg_req); 1447 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1448 continue; 1449 if (h == NULL) 1450 h = n; 1451 else { 1452 h->tail->next = n; 1453 h->tail = n->tail; 1454 } 1455 } 1456 free(ifgr.ifgr_groups); 1457 close(s); 1458 1459 return (h); 1460 } 1461 1462 struct node_host * 1463 ifa_lookup(const char *ifa_name, int flags) 1464 { 1465 struct node_host *p = NULL, *h = NULL, *n = NULL; 1466 int got4 = 0, got6 = 0; 1467 const char *last_if = NULL; 1468 1469 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1470 return (h); 1471 1472 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1473 ifa_name = NULL; 1474 1475 if (iftab == NULL) 1476 ifa_load(); 1477 1478 for (p = iftab; p; p = p->next) { 1479 if (ifa_skip_if(ifa_name, p)) 1480 continue; 1481 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1482 continue; 1483 if ((flags & PFI_AFLAG_BROADCAST) && 1484 !(p->ifa_flags & IFF_BROADCAST)) 1485 continue; 1486 if ((flags & PFI_AFLAG_PEER) && 1487 !(p->ifa_flags & IFF_POINTOPOINT)) 1488 continue; 1489 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1490 continue; 1491 if (last_if == NULL || strcmp(last_if, p->ifname)) 1492 got4 = got6 = 0; 1493 last_if = p->ifname; 1494 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1495 continue; 1496 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1497 continue; 1498 if (p->af == AF_INET) 1499 got4 = 1; 1500 else 1501 got6 = 1; 1502 n = calloc(1, sizeof(struct node_host)); 1503 if (n == NULL) 1504 err(1, "address: calloc"); 1505 n->af = p->af; 1506 if (flags & PFI_AFLAG_BROADCAST) 1507 memcpy(&n->addr.v.a.addr, &p->bcast, 1508 sizeof(struct pf_addr)); 1509 else if (flags & PFI_AFLAG_PEER) 1510 memcpy(&n->addr.v.a.addr, &p->peer, 1511 sizeof(struct pf_addr)); 1512 else 1513 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1514 sizeof(struct pf_addr)); 1515 if (flags & PFI_AFLAG_NETWORK) 1516 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af)); 1517 else { 1518 if (n->af == AF_INET) { 1519 if (p->ifa_flags & IFF_LOOPBACK && 1520 p->ifa_flags & IFF_LINK1) 1521 memcpy(&n->addr.v.a.mask, 1522 &p->addr.v.a.mask, 1523 sizeof(struct pf_addr)); 1524 else 1525 set_ipmask(n, 32); 1526 } else 1527 set_ipmask(n, 128); 1528 } 1529 n->ifindex = p->ifindex; 1530 1531 n->next = NULL; 1532 n->tail = n; 1533 if (h == NULL) 1534 h = n; 1535 else { 1536 h->tail->next = n; 1537 h->tail = n; 1538 } 1539 } 1540 return (h); 1541 } 1542 1543 int 1544 ifa_skip_if(const char *filter, struct node_host *p) 1545 { 1546 int n; 1547 1548 if (p->af != AF_INET && p->af != AF_INET6) 1549 return (1); 1550 if (filter == NULL || !*filter) 1551 return (0); 1552 if (!strcmp(p->ifname, filter)) 1553 return (0); /* exact match */ 1554 n = strlen(filter); 1555 if (n < 1 || n >= IFNAMSIZ) 1556 return (1); /* sanity check */ 1557 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1558 return (1); /* only do exact match in that case */ 1559 if (strncmp(p->ifname, filter, n)) 1560 return (1); /* prefix doesn't match */ 1561 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1562 } 1563 1564 struct node_host * 1565 host(const char *s) 1566 { 1567 struct node_host *h = NULL, *n; 1568 int mask = -1, v4mask = 32, v6mask = 128, cont = 1; 1569 char *p, *q, *r, *ps, *if_name; 1570 1571 if ((ps = strdup(s)) == NULL) 1572 err(1, "host: strdup"); 1573 1574 if ((if_name = strrchr(ps, '@')) != NULL) { 1575 if_name[0] = '\0'; 1576 if_name++; 1577 } 1578 1579 if ((p = strrchr(ps, '/')) != NULL) { 1580 if ((r = strdup(ps)) == NULL) 1581 err(1, "host: strdup"); 1582 mask = strtol(p+1, &q, 0); 1583 if (!q || *q || mask > 128 || q == (p+1)) { 1584 fprintf(stderr, "invalid netmask '%s'\n", p); 1585 free(r); 1586 free(ps); 1587 return (NULL); 1588 } 1589 p[0] = '\0'; 1590 v4mask = v6mask = mask; 1591 } else 1592 r = ps; 1593 1594 /* interface with this name exists? */ 1595 if (cont && (h = host_if(ps, mask)) != NULL) 1596 cont = 0; 1597 1598 /* IPv4 address? */ 1599 if (cont && (h = host_v4(r, mask)) != NULL) 1600 cont = 0; 1601 if (r != ps) 1602 free(r); 1603 1604 /* IPv6 address? */ 1605 if (cont && (h = host_v6(ps, v6mask)) != NULL) 1606 cont = 0; 1607 1608 /* dns lookup */ 1609 if (cont && (h = host_dns(ps, v4mask, v6mask)) != NULL) 1610 cont = 0; 1611 1612 if (if_name && if_name[0]) 1613 for (n = h; n != NULL; n = n->next) 1614 if ((n->ifname = strdup(if_name)) == NULL) 1615 err(1, "host: strdup"); 1616 1617 free(ps); /* after we copy the name out */ 1618 if (h == NULL || cont == 1) { 1619 fprintf(stderr, "no IP address found for %s\n", s); 1620 return (NULL); 1621 } 1622 for (n = h; n != NULL; n = n->next) { 1623 n->addr.type = PF_ADDR_ADDRMASK; 1624 n->weight = 0; 1625 } 1626 return (h); 1627 } 1628 1629 struct node_host * 1630 host_if(const char *s, int mask) 1631 { 1632 struct node_host *n, *h = NULL; 1633 char *p, *ps; 1634 int flags = 0; 1635 1636 if ((ps = strdup(s)) == NULL) 1637 err(1, "host_if: strdup"); 1638 while ((p = strrchr(ps, ':')) != NULL) { 1639 if (!strcmp(p+1, "network")) 1640 flags |= PFI_AFLAG_NETWORK; 1641 else if (!strcmp(p+1, "broadcast")) 1642 flags |= PFI_AFLAG_BROADCAST; 1643 else if (!strcmp(p+1, "peer")) 1644 flags |= PFI_AFLAG_PEER; 1645 else if (!strcmp(p+1, "0")) 1646 flags |= PFI_AFLAG_NOALIAS; 1647 else { 1648 free(ps); 1649 return (NULL); 1650 } 1651 *p = '\0'; 1652 } 1653 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1654 fprintf(stderr, "illegal combination of interface modifiers\n"); 1655 free(ps); 1656 return (NULL); 1657 } 1658 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1659 fprintf(stderr, "network or broadcast lookup, but " 1660 "extra netmask given\n"); 1661 free(ps); 1662 return (NULL); 1663 } 1664 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1665 /* interface with this name exists */ 1666 h = ifa_lookup(ps, flags); 1667 for (n = h; n != NULL && mask > -1; n = n->next) 1668 set_ipmask(n, mask); 1669 } 1670 1671 free(ps); 1672 return (h); 1673 } 1674 1675 struct node_host * 1676 host_v4(const char *s, int mask) 1677 { 1678 struct node_host *h = NULL; 1679 struct in_addr ina; 1680 int bits = 32; 1681 1682 memset(&ina, 0, sizeof(struct in_addr)); 1683 if (strrchr(s, '/') != NULL) { 1684 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1) 1685 return (NULL); 1686 } else { 1687 if (inet_pton(AF_INET, s, &ina) != 1) 1688 return (NULL); 1689 } 1690 1691 h = calloc(1, sizeof(struct node_host)); 1692 if (h == NULL) 1693 err(1, "address: calloc"); 1694 h->ifname = NULL; 1695 h->af = AF_INET; 1696 h->addr.v.a.addr.addr32[0] = ina.s_addr; 1697 set_ipmask(h, bits); 1698 h->next = NULL; 1699 h->tail = h; 1700 1701 return (h); 1702 } 1703 1704 struct node_host * 1705 host_v6(const char *s, int mask) 1706 { 1707 struct addrinfo hints, *res; 1708 struct node_host *h = NULL; 1709 1710 memset(&hints, 0, sizeof(hints)); 1711 hints.ai_family = AF_INET6; 1712 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1713 hints.ai_flags = AI_NUMERICHOST; 1714 if (getaddrinfo(s, "0", &hints, &res) == 0) { 1715 h = calloc(1, sizeof(struct node_host)); 1716 if (h == NULL) 1717 err(1, "address: calloc"); 1718 h->ifname = NULL; 1719 h->af = AF_INET6; 1720 memcpy(&h->addr.v.a.addr, 1721 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 1722 sizeof(h->addr.v.a.addr)); 1723 h->ifindex = 1724 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1725 set_ipmask(h, mask); 1726 freeaddrinfo(res); 1727 h->next = NULL; 1728 h->tail = h; 1729 } 1730 1731 return (h); 1732 } 1733 1734 struct node_host * 1735 host_dns(const char *s, int v4mask, int v6mask) 1736 { 1737 struct addrinfo hints, *res0, *res; 1738 struct node_host *n, *h = NULL; 1739 int error, noalias = 0; 1740 int got4 = 0, got6 = 0; 1741 char *p, *ps; 1742 1743 if ((ps = strdup(s)) == NULL) 1744 err(1, "host_dns: strdup"); 1745 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1746 noalias = 1; 1747 *p = '\0'; 1748 } 1749 memset(&hints, 0, sizeof(hints)); 1750 hints.ai_family = PF_UNSPEC; 1751 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1752 error = getaddrinfo(ps, NULL, &hints, &res0); 1753 if (error) { 1754 free(ps); 1755 return (h); 1756 } 1757 1758 for (res = res0; res; res = res->ai_next) { 1759 if (res->ai_family != AF_INET && 1760 res->ai_family != AF_INET6) 1761 continue; 1762 if (noalias) { 1763 if (res->ai_family == AF_INET) { 1764 if (got4) 1765 continue; 1766 got4 = 1; 1767 } else { 1768 if (got6) 1769 continue; 1770 got6 = 1; 1771 } 1772 } 1773 n = calloc(1, sizeof(struct node_host)); 1774 if (n == NULL) 1775 err(1, "host_dns: calloc"); 1776 n->ifname = NULL; 1777 n->af = res->ai_family; 1778 if (res->ai_family == AF_INET) { 1779 memcpy(&n->addr.v.a.addr, 1780 &((struct sockaddr_in *) 1781 res->ai_addr)->sin_addr.s_addr, 1782 sizeof(struct in_addr)); 1783 set_ipmask(n, v4mask); 1784 } else { 1785 memcpy(&n->addr.v.a.addr, 1786 &((struct sockaddr_in6 *) 1787 res->ai_addr)->sin6_addr.s6_addr, 1788 sizeof(struct in6_addr)); 1789 n->ifindex = 1790 ((struct sockaddr_in6 *) 1791 res->ai_addr)->sin6_scope_id; 1792 set_ipmask(n, v6mask); 1793 } 1794 n->next = NULL; 1795 n->tail = n; 1796 if (h == NULL) 1797 h = n; 1798 else { 1799 h->tail->next = n; 1800 h->tail = n; 1801 } 1802 } 1803 freeaddrinfo(res0); 1804 free(ps); 1805 1806 return (h); 1807 } 1808 1809 /* 1810 * convert a hostname to a list of addresses and put them in the given buffer. 1811 * test: 1812 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1813 */ 1814 int 1815 append_addr(struct pfr_buffer *b, char *s, int test) 1816 { 1817 static int previous = 0; 1818 static int expect = 0; 1819 struct pfr_addr *a; 1820 struct node_host *h, *n; 1821 char *r; 1822 const char *errstr; 1823 int rv, not = 0, i = 0; 1824 u_int16_t weight; 1825 1826 /* skip weight if given */ 1827 if (strcmp(s, "weight") == 0) { 1828 expect = 1; 1829 return (1); /* expecting further call */ 1830 } 1831 1832 /* check if previous host is set */ 1833 if (expect) { 1834 /* parse and append load balancing weight */ 1835 weight = strtonum(s, 1, USHRT_MAX, &errstr); 1836 if (errstr) { 1837 fprintf(stderr, "failed to convert weight %s\n", s); 1838 return (-1); 1839 } 1840 if (previous != -1) { 1841 PFRB_FOREACH(a, b) { 1842 if (++i >= previous) { 1843 a->pfra_weight = weight; 1844 a->pfra_type = PFRKE_COST; 1845 } 1846 } 1847 } 1848 1849 expect = 0; 1850 return (0); 1851 } 1852 1853 for (r = s; *r == '!'; r++) 1854 not = !not; 1855 if ((n = host(r)) == NULL) { 1856 errno = 0; 1857 return (-1); 1858 } 1859 rv = append_addr_host(b, n, test, not); 1860 previous = b->pfrb_size; 1861 do { 1862 h = n; 1863 n = n->next; 1864 free(h); 1865 } while (n != NULL); 1866 return (rv); 1867 } 1868 1869 /* 1870 * same as previous function, but with a pre-parsed input and the ability 1871 * to "negate" the result. Does not free the node_host list. 1872 * not: 1873 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1874 */ 1875 int 1876 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1877 { 1878 int bits; 1879 struct pfr_addr addr; 1880 1881 do { 1882 bzero(&addr, sizeof(addr)); 1883 addr.pfra_not = n->not ^ not; 1884 addr.pfra_af = n->af; 1885 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af); 1886 if (n->ifname) { 1887 if (strlcpy(addr.pfra_ifname, n->ifname, 1888 sizeof(addr.pfra_ifname)) >= sizeof(addr.pfra_ifname)) 1889 errx(1, "append_addr_host: strlcpy"); 1890 addr.pfra_type = PFRKE_ROUTE; 1891 } 1892 if (n->weight > 0) { 1893 addr.pfra_weight = n->weight; 1894 addr.pfra_type = PFRKE_COST; 1895 } 1896 switch (n->af) { 1897 case AF_INET: 1898 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 1899 bits = 32; 1900 break; 1901 case AF_INET6: 1902 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 1903 sizeof(struct in6_addr)); 1904 bits = 128; 1905 break; 1906 default: 1907 errno = EINVAL; 1908 return (-1); 1909 } 1910 if ((test && (not || addr.pfra_net != bits)) || 1911 addr.pfra_net > bits) { 1912 errno = EINVAL; 1913 return (-1); 1914 } 1915 if (pfr_buf_add(b, &addr)) 1916 return (-1); 1917 } while ((n = n->next) != NULL); 1918 1919 return (0); 1920 } 1921 1922 int 1923 pfctl_add_trans(struct pfr_buffer *buf, int type, const char *anchor) 1924 { 1925 struct pfioc_trans_e trans; 1926 1927 bzero(&trans, sizeof(trans)); 1928 trans.type = type; 1929 if (strlcpy(trans.anchor, anchor, 1930 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 1931 errx(1, "pfctl_add_trans: strlcpy"); 1932 1933 return pfr_buf_add(buf, &trans); 1934 } 1935 1936 u_int32_t 1937 pfctl_get_ticket(struct pfr_buffer *buf, int type, const char *anchor) 1938 { 1939 struct pfioc_trans_e *p; 1940 1941 PFRB_FOREACH(p, buf) 1942 if (type == p->type && !strcmp(anchor, p->anchor)) 1943 return (p->ticket); 1944 errx(1, "pfctl_get_ticket: assertion failed"); 1945 } 1946 1947 int 1948 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 1949 { 1950 struct pfioc_trans trans; 1951 1952 bzero(&trans, sizeof(trans)); 1953 trans.size = buf->pfrb_size - from; 1954 trans.esize = sizeof(struct pfioc_trans_e); 1955 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 1956 return ioctl(dev, cmd, &trans); 1957 } 1958