1 /* $OpenBSD: pfctl_parser.c,v 1.306 2015/09/03 12:46:47 mikeb 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/ip.h> 41 #include <netinet/ip_icmp.h> 42 #include <netinet/icmp6.h> 43 #include <net/pfvar.h> 44 #include <net/hfsc.h> 45 #include <arpa/inet.h> 46 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <ctype.h> 51 #include <netdb.h> 52 #include <stdarg.h> 53 #include <errno.h> 54 #include <err.h> 55 #include <ifaddrs.h> 56 #include <unistd.h> 57 #include <limits.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 const char *errstr; 314 int val; 315 316 val = strtonum(name, 0, LOG_DEBUG, &errstr); 317 if (errstr) 318 return -1; 319 return val; 320 } 321 322 for (p = buf; *name && p < &buf[sizeof(buf) - 1]; p++, name++) { 323 if (isupper((unsigned char)*name)) 324 *p = tolower((unsigned char)*name); 325 else 326 *p = *name; 327 } 328 *p = '\0'; 329 for (c = prioritynames; c->c_name; c++) 330 if (!strcmp(buf, c->c_name) && c->c_val != INTERNAL_NOPRI) 331 return (c->c_val); 332 333 return (-1); 334 } 335 336 const char * 337 loglevel_to_string(int level) 338 { 339 CODE *c; 340 341 for (c = prioritynames; c->c_name; c++) 342 if (c->c_val == level) 343 return (c->c_name); 344 345 return ("unknown"); 346 } 347 348 void 349 print_op(u_int8_t op, const char *a1, const char *a2) 350 { 351 if (op == PF_OP_IRG) 352 printf(" %s >< %s", a1, a2); 353 else if (op == PF_OP_XRG) 354 printf(" %s <> %s", a1, a2); 355 else if (op == PF_OP_EQ) 356 printf(" = %s", a1); 357 else if (op == PF_OP_NE) 358 printf(" != %s", a1); 359 else if (op == PF_OP_LT) 360 printf(" < %s", a1); 361 else if (op == PF_OP_LE) 362 printf(" <= %s", a1); 363 else if (op == PF_OP_GT) 364 printf(" > %s", a1); 365 else if (op == PF_OP_GE) 366 printf(" >= %s", a1); 367 else if (op == PF_OP_RRG) 368 printf(" %s:%s", a1, a2); 369 } 370 371 void 372 print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int opts) 373 { 374 char a1[6], a2[6]; 375 struct servent *s = NULL; 376 377 if (opts & PF_OPT_PORTNAMES) 378 s = getservbyport(p1, proto); 379 p1 = ntohs(p1); 380 p2 = ntohs(p2); 381 snprintf(a1, sizeof(a1), "%u", p1); 382 snprintf(a2, sizeof(a2), "%u", p2); 383 printf(" port"); 384 if (s != NULL && (op == PF_OP_EQ || op == PF_OP_NE)) 385 print_op(op, s->s_name, a2); 386 else 387 print_op(op, a1, a2); 388 } 389 390 void 391 print_ugid(u_int8_t op, unsigned u1, unsigned u2, const char *t, unsigned umax) 392 { 393 char a1[11], a2[11]; 394 395 snprintf(a1, sizeof(a1), "%u", u1); 396 snprintf(a2, sizeof(a2), "%u", u2); 397 printf(" %s", t); 398 if (u1 == umax && (op == PF_OP_EQ || op == PF_OP_NE)) 399 print_op(op, "unknown", a2); 400 else 401 print_op(op, a1, a2); 402 } 403 404 void 405 print_flags(u_int8_t f) 406 { 407 int i; 408 409 for (i = 0; tcpflags[i]; ++i) 410 if (f & (1 << i)) 411 printf("%c", tcpflags[i]); 412 } 413 414 void 415 print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst, 416 sa_family_t af, u_int8_t proto, int opts) 417 { 418 char buf[PF_OSFP_LEN*3]; 419 int verbose = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 420 if (src->addr.type == PF_ADDR_ADDRMASK && 421 dst->addr.type == PF_ADDR_ADDRMASK && 422 PF_AZERO(&src->addr.v.a.addr, AF_INET6) && 423 PF_AZERO(&src->addr.v.a.mask, AF_INET6) && 424 PF_AZERO(&dst->addr.v.a.addr, AF_INET6) && 425 PF_AZERO(&dst->addr.v.a.mask, AF_INET6) && 426 !src->neg && !dst->neg && 427 !src->port_op && !dst->port_op && 428 osfp == PF_OSFP_ANY) 429 printf(" all"); 430 else { 431 printf(" from "); 432 if (src->neg) 433 printf("! "); 434 print_addr(&src->addr, af, verbose); 435 if (src->port_op) 436 print_port(src->port_op, src->port[0], 437 src->port[1], 438 proto == IPPROTO_TCP ? "tcp" : "udp", opts); 439 if (osfp != PF_OSFP_ANY) 440 printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf, 441 sizeof(buf))); 442 443 printf(" to "); 444 if (dst->neg) 445 printf("! "); 446 print_addr(&dst->addr, af, verbose); 447 if (dst->port_op) 448 print_port(dst->port_op, dst->port[0], 449 dst->port[1], 450 proto == IPPROTO_TCP ? "tcp" : "udp", opts); 451 } 452 } 453 454 void 455 print_pool(struct pf_pool *pool, u_int16_t p1, u_int16_t p2, 456 sa_family_t af, int id, int verbose) 457 { 458 if (pool->ifname[0]) { 459 if (!PF_AZERO(&pool->addr.v.a.addr, af)) { 460 print_addr(&pool->addr, af, verbose); 461 printf("@"); 462 } 463 printf("%s", pool->ifname); 464 } else 465 print_addr(&pool->addr, af, verbose); 466 switch (id) { 467 case PF_POOL_NAT: 468 if ((p1 != PF_NAT_PROXY_PORT_LOW || 469 p2 != PF_NAT_PROXY_PORT_HIGH) && (p1 != 0 || p2 != 0)) { 470 if (p1 == p2) 471 printf(" port %u", p1); 472 else 473 printf(" port %u:%u", p1, p2); 474 } 475 break; 476 case PF_POOL_RDR: 477 if (p1) { 478 printf(" port %u", p1); 479 if (p2 && (p2 != p1)) 480 printf(":%u", p2); 481 } 482 break; 483 default: 484 break; 485 } 486 switch (pool->opts & PF_POOL_TYPEMASK) { 487 case PF_POOL_NONE: 488 break; 489 case PF_POOL_BITMASK: 490 printf(" bitmask"); 491 break; 492 case PF_POOL_RANDOM: 493 printf(" random"); 494 break; 495 case PF_POOL_SRCHASH: 496 printf(" source-hash 0x%08x%08x%08x%08x", 497 pool->key.key32[0], pool->key.key32[1], 498 pool->key.key32[2], pool->key.key32[3]); 499 break; 500 case PF_POOL_ROUNDROBIN: 501 printf(" round-robin"); 502 break; 503 case PF_POOL_LEASTSTATES: 504 printf(" least-states"); 505 break; 506 } 507 if (pool->opts & PF_POOL_STICKYADDR) 508 printf(" sticky-address"); 509 if (id == PF_POOL_NAT && p1 == 0 && p2 == 0) 510 printf(" static-port"); 511 } 512 513 const char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES; 514 const char *pf_lcounters[LCNT_MAX+1] = LCNT_NAMES; 515 const char *pf_fcounters[FCNT_MAX+1] = FCNT_NAMES; 516 const char *pf_scounters[FCNT_MAX+1] = FCNT_NAMES; 517 518 void 519 print_status(struct pf_status *s, int opts) 520 { 521 char statline[80], *running, *debug; 522 time_t runtime; 523 int i; 524 char buf[PF_MD5_DIGEST_LENGTH * 2 + 1]; 525 static const char hex[] = "0123456789abcdef"; 526 527 runtime = time(NULL) - s->since; 528 running = s->running ? "Enabled" : "Disabled"; 529 530 if (s->since) { 531 unsigned int sec, min, hrs; 532 time_t day = runtime; 533 534 sec = day % 60; 535 day /= 60; 536 min = day % 60; 537 day /= 60; 538 hrs = day % 24; 539 day /= 24; 540 snprintf(statline, sizeof(statline), 541 "Status: %s for %lld days %.2u:%.2u:%.2u", 542 running, (long long)day, hrs, min, sec); 543 } else 544 snprintf(statline, sizeof(statline), "Status: %s", running); 545 printf("%-44s", statline); 546 if (asprintf(&debug, "Debug: %s", loglevel_to_string(s->debug)) != -1) { 547 printf("%15s\n\n", debug); 548 free(debug); 549 } 550 551 if (opts & PF_OPT_VERBOSE) { 552 printf("Hostid: 0x%08x\n", ntohl(s->hostid)); 553 554 for (i = 0; i < PF_MD5_DIGEST_LENGTH; i++) { 555 buf[i + i] = hex[s->pf_chksum[i] >> 4]; 556 buf[i + i + 1] = hex[s->pf_chksum[i] & 0x0f]; 557 } 558 buf[i + i] = '\0'; 559 printf("Checksum: 0x%s\n\n", buf); 560 } 561 562 if (s->ifname[0] != 0) { 563 printf("Interface Stats for %-16s %5s %16s\n", 564 s->ifname, "IPv4", "IPv6"); 565 printf(" %-25s %14llu %16llu\n", "Bytes In", 566 (unsigned long long)s->bcounters[0][0], 567 (unsigned long long)s->bcounters[1][0]); 568 printf(" %-25s %14llu %16llu\n", "Bytes Out", 569 (unsigned long long)s->bcounters[0][1], 570 (unsigned long long)s->bcounters[1][1]); 571 printf(" Packets In\n"); 572 printf(" %-23s %14llu %16llu\n", "Passed", 573 (unsigned long long)s->pcounters[0][0][PF_PASS], 574 (unsigned long long)s->pcounters[1][0][PF_PASS]); 575 printf(" %-23s %14llu %16llu\n", "Blocked", 576 (unsigned long long)s->pcounters[0][0][PF_DROP], 577 (unsigned long long)s->pcounters[1][0][PF_DROP]); 578 printf(" Packets Out\n"); 579 printf(" %-23s %14llu %16llu\n", "Passed", 580 (unsigned long long)s->pcounters[0][1][PF_PASS], 581 (unsigned long long)s->pcounters[1][1][PF_PASS]); 582 printf(" %-23s %14llu %16llu\n\n", "Blocked", 583 (unsigned long long)s->pcounters[0][1][PF_DROP], 584 (unsigned long long)s->pcounters[1][1][PF_DROP]); 585 } 586 printf("%-27s %14s %16s\n", "State Table", "Total", "Rate"); 587 printf(" %-25s %14u %14s\n", "current entries", s->states, ""); 588 for (i = 0; i < FCNT_MAX; i++) { 589 printf(" %-25s %14llu ", pf_fcounters[i], 590 (unsigned long long)s->fcounters[i]); 591 if (runtime > 0) 592 printf("%14.1f/s\n", 593 (double)s->fcounters[i] / (double)runtime); 594 else 595 printf("%14s\n", ""); 596 } 597 if (opts & PF_OPT_VERBOSE) { 598 printf("Source Tracking Table\n"); 599 printf(" %-25s %14u %14s\n", "current entries", 600 s->src_nodes, ""); 601 for (i = 0; i < SCNT_MAX; i++) { 602 printf(" %-25s %14lld ", pf_scounters[i], 603 s->scounters[i]); 604 if (runtime > 0) 605 printf("%14.1f/s\n", 606 (double)s->scounters[i] / (double)runtime); 607 else 608 printf("%14s\n", ""); 609 } 610 } 611 printf("Counters\n"); 612 for (i = 0; i < PFRES_MAX; i++) { 613 printf(" %-25s %14llu ", pf_reasons[i], 614 (unsigned long long)s->counters[i]); 615 if (runtime > 0) 616 printf("%14.1f/s\n", 617 (double)s->counters[i] / (double)runtime); 618 else 619 printf("%14s\n", ""); 620 } 621 if (opts & PF_OPT_VERBOSE) { 622 printf("Limit Counters\n"); 623 for (i = 0; i < LCNT_MAX; i++) { 624 printf(" %-25s %14lld ", pf_lcounters[i], 625 s->lcounters[i]); 626 if (runtime > 0) 627 printf("%14.1f/s\n", 628 (double)s->lcounters[i] / (double)runtime); 629 else 630 printf("%14s\n", ""); 631 } 632 } 633 } 634 635 void 636 print_src_node(struct pf_src_node *sn, int opts) 637 { 638 struct pf_addr_wrap aw; 639 int min, sec; 640 641 memset(&aw, 0, sizeof(aw)); 642 if (sn->af == AF_INET) 643 aw.v.a.mask.addr32[0] = 0xffffffff; 644 else 645 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask)); 646 647 aw.v.a.addr = sn->addr; 648 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2); 649 650 if (!PF_AZERO(&sn->raddr, sn->af)) { 651 if (sn->type == PF_SN_NAT) 652 printf(" nat-to "); 653 else if (sn->type == PF_SN_RDR) 654 printf(" rdr-to "); 655 else if (sn->type == PF_SN_ROUTE) 656 printf(" route-to "); 657 else 658 printf(" ??? (%u) ", sn->type); 659 aw.v.a.addr = sn->raddr; 660 print_addr(&aw, sn->naf ? sn->naf : sn->af, 661 opts & PF_OPT_VERBOSE2); 662 } 663 664 printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states, 665 sn->conn, sn->conn_rate.count / 1000, 666 (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds); 667 if (opts & PF_OPT_VERBOSE) { 668 sec = sn->creation % 60; 669 sn->creation /= 60; 670 min = sn->creation % 60; 671 sn->creation /= 60; 672 printf(" age %.2u:%.2u:%.2u", sn->creation, min, sec); 673 if (sn->states == 0) { 674 sec = sn->expire % 60; 675 sn->expire /= 60; 676 min = sn->expire % 60; 677 sn->expire /= 60; 678 printf(", expires in %.2u:%.2u:%.2u", 679 sn->expire, min, sec); 680 } 681 printf(", %llu pkts, %llu bytes", 682 sn->packets[0] + sn->packets[1], 683 sn->bytes[0] + sn->bytes[1]); 684 if (sn->rule.nr != -1) 685 printf(", rule %u", sn->rule.nr); 686 printf("\n"); 687 } 688 } 689 690 void 691 print_rule(struct pf_rule *r, const char *anchor_call, int opts) 692 { 693 static const char *actiontypes[] = { "pass", "block", "scrub", 694 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr", 695 "", "", "match"}; 696 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 697 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 698 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 699 int i, ropts; 700 int verbose = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 701 char *p; 702 703 if (verbose) 704 printf("@%d ", r->nr); 705 if (r->action > PF_MATCH) 706 printf("action(%d)", r->action); 707 else if (anchor_call[0]) { 708 p = strrchr(anchor_call, '/'); 709 if (p ? p[1] == '_' : anchor_call[0] == '_') 710 printf("%s", anchortypes[r->action]); 711 else 712 printf("%s \"%s\"", anchortypes[r->action], 713 anchor_call); 714 } else 715 printf("%s", actiontypes[r->action]); 716 if (r->action == PF_DROP) { 717 if (r->rule_flag & PFRULE_RETURN) 718 printf(" return"); 719 else if (r->rule_flag & PFRULE_RETURNRST) { 720 if (!r->return_ttl) 721 printf(" return-rst"); 722 else 723 printf(" return-rst(ttl %d)", r->return_ttl); 724 } else if (r->rule_flag & PFRULE_RETURNICMP) { 725 const struct icmpcodeent *ic, *ic6; 726 727 ic = geticmpcodebynumber(r->return_icmp >> 8, 728 r->return_icmp & 255, AF_INET); 729 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 730 r->return_icmp6 & 255, AF_INET6); 731 732 switch (r->af) { 733 case AF_INET: 734 printf(" return-icmp"); 735 if (ic == NULL) 736 printf("(%u)", r->return_icmp & 255); 737 else 738 printf("(%s)", ic->name); 739 break; 740 case AF_INET6: 741 printf(" return-icmp6"); 742 if (ic6 == NULL) 743 printf("(%u)", r->return_icmp6 & 255); 744 else 745 printf("(%s)", ic6->name); 746 break; 747 default: 748 printf(" return-icmp"); 749 if (ic == NULL) 750 printf("(%u, ", r->return_icmp & 255); 751 else 752 printf("(%s, ", ic->name); 753 if (ic6 == NULL) 754 printf("%u)", r->return_icmp6 & 255); 755 else 756 printf("%s)", ic6->name); 757 break; 758 } 759 } else 760 printf(" drop"); 761 } 762 if (r->direction == PF_IN) 763 printf(" in"); 764 else if (r->direction == PF_OUT) 765 printf(" out"); 766 if (r->log) { 767 printf(" log"); 768 if (r->log & ~PF_LOG || r->logif) { 769 int count = 0; 770 771 printf(" ("); 772 if (r->log & PF_LOG_ALL) 773 printf("%sall", count++ ? ", " : ""); 774 if (r->log & PF_LOG_MATCHES) 775 printf("%smatches", count++ ? ", " : ""); 776 if (r->log & PF_LOG_SOCKET_LOOKUP) 777 printf("%suser", count++ ? ", " : ""); 778 if (r->logif) 779 printf("%sto pflog%u", count++ ? ", " : "", 780 r->logif); 781 printf(")"); 782 } 783 } 784 if (r->quick) 785 printf(" quick"); 786 if (r->ifname[0]) { 787 if (r->ifnot) 788 printf(" on ! %s", r->ifname); 789 else 790 printf(" on %s", r->ifname); 791 } 792 if (r->onrdomain >= 0) { 793 if (r->ifnot) 794 printf(" on ! rdomain %d", r->onrdomain); 795 else 796 printf(" on rdomain %d", r->onrdomain); 797 } 798 if (r->af) { 799 if (r->af == AF_INET) 800 printf(" inet"); 801 else 802 printf(" inet6"); 803 } 804 if (r->proto) { 805 struct protoent *p; 806 807 if ((p = getprotobynumber(r->proto)) != NULL) 808 printf(" proto %s", p->p_name); 809 else 810 printf(" proto %u", r->proto); 811 } 812 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 813 opts); 814 if (r->rcv_ifname[0]) 815 printf(" %sreceived-on %s", r->rcvifnot ? "!" : "", 816 r->rcv_ifname); 817 if (r->uid.op) 818 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 819 UID_MAX); 820 if (r->gid.op) 821 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 822 GID_MAX); 823 if (r->flags || r->flagset) { 824 printf(" flags "); 825 print_flags(r->flags); 826 printf("/"); 827 print_flags(r->flagset); 828 } else if ((r->action == PF_PASS || r->action == PF_MATCH) && 829 (!r->proto || r->proto == IPPROTO_TCP) && 830 !(r->rule_flag & PFRULE_FRAGMENT) && 831 !anchor_call[0] && r->keep_state) 832 printf(" flags any"); 833 if (r->type) { 834 const struct icmptypeent *it; 835 836 it = geticmptypebynumber(r->type-1, r->af); 837 if (r->af != AF_INET6) 838 printf(" icmp-type"); 839 else 840 printf(" icmp6-type"); 841 if (it != NULL) 842 printf(" %s", it->name); 843 else 844 printf(" %u", r->type-1); 845 if (r->code) { 846 const struct icmpcodeent *ic; 847 848 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 849 if (ic != NULL) 850 printf(" code %s", ic->name); 851 else 852 printf(" code %u", r->code-1); 853 } 854 } 855 if (r->tos) 856 printf(" tos 0x%2.2x", r->tos); 857 if (r->prio) 858 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio); 859 860 if (r->scrub_flags & PFSTATE_SETMASK || r->qname[0]) { 861 char *comma = ""; 862 printf(" set ("); 863 if (r->scrub_flags & PFSTATE_SETPRIO) { 864 if (r->set_prio[0] == r->set_prio[1]) 865 printf("%s prio %u", comma, r->set_prio[0]); 866 else 867 printf("%s prio(%u, %u)", comma, r->set_prio[0], 868 r->set_prio[1]); 869 comma = ","; 870 } 871 if (r->qname[0]) { 872 if (r->pqname[0]) 873 printf("%s queue(%s, %s)", comma, r->qname, 874 r->pqname); 875 else 876 printf("%s queue %s", comma, r->qname); 877 comma = ","; 878 } 879 if (r->scrub_flags & PFSTATE_SETTOS) { 880 printf("%s tos 0x%2.2x", comma, r->set_tos); 881 comma = ","; 882 } 883 printf(" )"); 884 } 885 886 ropts = 0; 887 if (r->max_states || r->max_src_nodes || r->max_src_states) 888 ropts = 1; 889 if (r->rule_flag & PFRULE_NOSYNC) 890 ropts = 1; 891 if (r->rule_flag & PFRULE_SRCTRACK) 892 ropts = 1; 893 if (r->rule_flag & PFRULE_IFBOUND) 894 ropts = 1; 895 if (r->rule_flag & PFRULE_STATESLOPPY) 896 ropts = 1; 897 if (r->rule_flag & PFRULE_PFLOW) 898 ropts = 1; 899 for (i = 0; !ropts && i < PFTM_MAX; ++i) 900 if (r->timeout[i]) 901 ropts = 1; 902 903 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 904 printf(" no state"); 905 else if (r->keep_state == PF_STATE_NORMAL && ropts) 906 printf(" keep state"); 907 else if (r->keep_state == PF_STATE_MODULATE) 908 printf(" modulate state"); 909 else if (r->keep_state == PF_STATE_SYNPROXY) 910 printf(" synproxy state"); 911 if (r->prob) { 912 char buf[20]; 913 914 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 915 for (i = strlen(buf)-1; i > 0; i--) { 916 if (buf[i] == '0') 917 buf[i] = '\0'; 918 else { 919 if (buf[i] == '.') 920 buf[i] = '\0'; 921 break; 922 } 923 } 924 printf(" probability %s%%", buf); 925 } 926 if (ropts) { 927 printf(" ("); 928 if (r->max_states) { 929 printf("max %u", r->max_states); 930 ropts = 0; 931 } 932 if (r->rule_flag & PFRULE_NOSYNC) { 933 if (!ropts) 934 printf(", "); 935 printf("no-sync"); 936 ropts = 0; 937 } 938 if (r->rule_flag & PFRULE_SRCTRACK) { 939 if (!ropts) 940 printf(", "); 941 printf("source-track"); 942 if (r->rule_flag & PFRULE_RULESRCTRACK) 943 printf(" rule"); 944 else 945 printf(" global"); 946 ropts = 0; 947 } 948 if (r->max_src_states) { 949 if (!ropts) 950 printf(", "); 951 printf("max-src-states %u", r->max_src_states); 952 ropts = 0; 953 } 954 if (r->max_src_conn) { 955 if (!ropts) 956 printf(", "); 957 printf("max-src-conn %u", r->max_src_conn); 958 ropts = 0; 959 } 960 if (r->max_src_conn_rate.limit) { 961 if (!ropts) 962 printf(", "); 963 printf("max-src-conn-rate %u/%u", 964 r->max_src_conn_rate.limit, 965 r->max_src_conn_rate.seconds); 966 ropts = 0; 967 } 968 if (r->max_src_nodes) { 969 if (!ropts) 970 printf(", "); 971 printf("max-src-nodes %u", r->max_src_nodes); 972 ropts = 0; 973 } 974 if (r->overload_tblname[0]) { 975 if (!ropts) 976 printf(", "); 977 printf("overload <%s>", r->overload_tblname); 978 if (r->flush) 979 printf(" flush"); 980 if (r->flush & PF_FLUSH_GLOBAL) 981 printf(" global"); 982 } 983 if (r->rule_flag & PFRULE_IFBOUND) { 984 if (!ropts) 985 printf(", "); 986 printf("if-bound"); 987 ropts = 0; 988 } 989 if (r->rule_flag & PFRULE_STATESLOPPY) { 990 if (!ropts) 991 printf(", "); 992 printf("sloppy"); 993 ropts = 0; 994 } 995 if (r->rule_flag & PFRULE_PFLOW) { 996 if (!ropts) 997 printf(", "); 998 printf("pflow"); 999 ropts = 0; 1000 } 1001 for (i = 0; i < PFTM_MAX; ++i) 1002 if (r->timeout[i]) { 1003 int j; 1004 1005 if (!ropts) 1006 printf(", "); 1007 ropts = 0; 1008 for (j = 0; pf_timeouts[j].name != NULL; 1009 ++j) 1010 if (pf_timeouts[j].timeout == i) 1011 break; 1012 printf("%s %u", pf_timeouts[j].name == NULL ? 1013 "inv.timeout" : pf_timeouts[j].name, 1014 r->timeout[i]); 1015 } 1016 printf(")"); 1017 } 1018 1019 if (r->rule_flag & PFRULE_FRAGMENT) 1020 printf(" fragment"); 1021 1022 if (r->scrub_flags & PFSTATE_SCRUBMASK || r->min_ttl || r->max_mss) { 1023 printf(" scrub ("); 1024 ropts = 1; 1025 if (r->scrub_flags & PFSTATE_NODF) { 1026 printf("no-df"); 1027 ropts = 0; 1028 } 1029 if (r->scrub_flags & PFSTATE_RANDOMID) { 1030 if (!ropts) 1031 printf(" "); 1032 printf("random-id"); 1033 ropts = 0; 1034 } 1035 if (r->min_ttl) { 1036 if (!ropts) 1037 printf(" "); 1038 printf("min-ttl %d", r->min_ttl); 1039 ropts = 0; 1040 } 1041 if (r->scrub_flags & PFSTATE_SCRUB_TCP) { 1042 if (!ropts) 1043 printf(" "); 1044 printf("reassemble tcp"); 1045 ropts = 0; 1046 } 1047 if (r->max_mss) { 1048 if (!ropts) 1049 printf(" "); 1050 printf("max-mss %d", r->max_mss); 1051 ropts = 0; 1052 } 1053 printf(")"); 1054 } 1055 1056 if (r->allow_opts) 1057 printf(" allow-opts"); 1058 if (r->label[0]) 1059 printf(" label \"%s\"", r->label); 1060 if (r->rule_flag & PFRULE_ONCE) 1061 printf(" once"); 1062 if (r->tagname[0]) 1063 printf(" tag %s", r->tagname); 1064 if (r->match_tagname[0]) { 1065 if (r->match_tag_not) 1066 printf(" !"); 1067 printf(" tagged %s", r->match_tagname); 1068 } 1069 if (r->rtableid != -1) 1070 printf(" rtable %u", r->rtableid); 1071 if (r->divert.port) { 1072 if (PF_AZERO(&r->divert.addr, AF_INET6)) { 1073 printf(" divert-reply"); 1074 } else { 1075 /* XXX cut&paste from print_addr */ 1076 char buf[48]; 1077 1078 printf(" divert-to "); 1079 if (inet_ntop(r->af, &r->divert.addr, buf, 1080 sizeof(buf)) == NULL) 1081 printf("?"); 1082 else 1083 printf("%s", buf); 1084 printf(" port %u", ntohs(r->divert.port)); 1085 } 1086 } 1087 if (r->divert_packet.port) 1088 printf(" divert-packet port %u", ntohs(r->divert_packet.port)); 1089 1090 if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE && 1091 r->rule_flag & PFRULE_AFTO) { 1092 printf(" af-to %s from ", r->naf == AF_INET ? "inet" : "inet6"); 1093 print_pool(&r->nat, r->nat.proxy_port[0], 1094 r->nat.proxy_port[1], r->naf ? r->naf : r->af, 1095 PF_POOL_NAT, verbose); 1096 if (r->rdr.addr.type != PF_ADDR_NONE) { 1097 printf(" to "); 1098 print_pool(&r->rdr, r->rdr.proxy_port[0], 1099 r->rdr.proxy_port[1], r->naf ? r->naf : r->af, 1100 PF_POOL_RDR, verbose); 1101 } 1102 } else if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE) { 1103 printf (" nat-to "); 1104 print_pool(&r->nat, r->nat.proxy_port[0], 1105 r->nat.proxy_port[1], r->naf ? r->naf : r->af, 1106 PF_POOL_NAT, verbose); 1107 } else if (!anchor_call[0] && r->rdr.addr.type != PF_ADDR_NONE) { 1108 printf (" rdr-to "); 1109 print_pool(&r->rdr, r->rdr.proxy_port[0], 1110 r->rdr.proxy_port[1], r->af, PF_POOL_RDR, verbose); 1111 } 1112 if (r->rt) { 1113 if (r->rt == PF_ROUTETO) 1114 printf(" route-to"); 1115 else if (r->rt == PF_REPLYTO) 1116 printf(" reply-to"); 1117 else if (r->rt == PF_DUPTO) 1118 printf(" dup-to"); 1119 printf(" "); 1120 print_pool(&r->route, 0, 0, r->af, PF_POOL_ROUTE, verbose); 1121 } 1122 } 1123 1124 void 1125 print_tabledef(const char *name, int flags, int addrs, 1126 struct node_tinithead *nodes) 1127 { 1128 struct node_tinit *ti, *nti; 1129 struct node_host *h; 1130 1131 printf("table <%s>", name); 1132 if (flags & PFR_TFLAG_CONST) 1133 printf(" const"); 1134 if (flags & PFR_TFLAG_PERSIST) 1135 printf(" persist"); 1136 if (flags & PFR_TFLAG_COUNTERS) 1137 printf(" counters"); 1138 SIMPLEQ_FOREACH(ti, nodes, entries) { 1139 if (ti->file) { 1140 printf(" file \"%s\"", ti->file); 1141 continue; 1142 } 1143 printf(" {"); 1144 for (;;) { 1145 for (h = ti->host; h != NULL; h = h->next) { 1146 printf(h->not ? " !" : " "); 1147 print_addr(&h->addr, h->af, 0); 1148 if (h->ifname) 1149 printf("@%s", h->ifname); 1150 } 1151 nti = SIMPLEQ_NEXT(ti, entries); 1152 if (nti != NULL && nti->file == NULL) 1153 ti = nti; /* merge lists */ 1154 else 1155 break; 1156 } 1157 printf(" }"); 1158 } 1159 if (addrs && SIMPLEQ_EMPTY(nodes)) 1160 printf(" { }"); 1161 printf("\n"); 1162 } 1163 1164 void 1165 print_bwspec(const char *prefix, struct pf_queue_bwspec *bw) 1166 { 1167 u_int rate; 1168 int i; 1169 static const char unit[] = " KMG"; 1170 1171 if (bw->percent) 1172 printf("%s%u%%", prefix, bw->percent); 1173 else if (bw->absolute) { 1174 rate = bw->absolute; 1175 for (i = 0; rate >= 1000 && i <= 3; i++) 1176 rate /= 1000; 1177 printf("%s%u%c", prefix, rate, unit[i]); 1178 } 1179 } 1180 1181 void 1182 print_scspec(const char *prefix, struct pf_queue_scspec *sc) 1183 { 1184 print_bwspec(prefix, &sc->m2); 1185 if (sc->d) { 1186 printf(" burst "); 1187 print_bwspec("", &sc->m1); 1188 printf(" for %ums", sc->d); 1189 } 1190 } 1191 1192 void 1193 print_queuespec(struct pf_queuespec *q) 1194 { 1195 /* hide the _root_ifname queues */ 1196 if (q->qname[0] == '_') 1197 return; 1198 printf("queue %s", q->qname); 1199 if (q->parent[0] && q->parent[0] != '_') 1200 printf(" parent %s", q->parent); 1201 else if (q->ifname[0]) 1202 printf(" on %s", q->ifname); 1203 print_scspec(" bandwidth ", &q->linkshare); 1204 print_scspec(", min ", &q->realtime); 1205 print_scspec(", max ", &q->upperlimit); 1206 if (q->flags & HFSC_DEFAULTCLASS) 1207 printf(" default"); 1208 if (q->qlimit) 1209 printf(" qlimit %u", q->qlimit); 1210 printf("\n"); 1211 } 1212 1213 int 1214 parse_flags(char *s) 1215 { 1216 char *p, *q; 1217 u_int8_t f = 0; 1218 1219 for (p = s; *p; p++) { 1220 if ((q = strchr(tcpflags, *p)) == NULL) 1221 return -1; 1222 else 1223 f |= 1 << (q - tcpflags); 1224 } 1225 return (f ? f : PF_TH_ALL); 1226 } 1227 1228 void 1229 set_ipmask(struct node_host *h, u_int8_t b) 1230 { 1231 struct pf_addr *m, *n; 1232 int i, j = 0; 1233 1234 m = &h->addr.v.a.mask; 1235 memset(m, 0, sizeof(*m)); 1236 1237 while (b >= 32) { 1238 m->addr32[j++] = 0xffffffff; 1239 b -= 32; 1240 } 1241 for (i = 31; i > 31-b; --i) 1242 m->addr32[j] |= (1 << i); 1243 if (b) 1244 m->addr32[j] = htonl(m->addr32[j]); 1245 1246 /* Mask off bits of the address that will never be used. */ 1247 n = &h->addr.v.a.addr; 1248 if (h->addr.type == PF_ADDR_ADDRMASK) 1249 for (i = 0; i < 4; i++) 1250 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1251 } 1252 1253 int 1254 check_netmask(struct node_host *h, sa_family_t af) 1255 { 1256 struct node_host *n = NULL; 1257 struct pf_addr *m; 1258 1259 for (n = h; n != NULL; n = n->next) { 1260 if (h->addr.type == PF_ADDR_TABLE) 1261 continue; 1262 m = &h->addr.v.a.mask; 1263 /* netmasks > 32 bit are invalid on v4 */ 1264 if (af == AF_INET && 1265 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1266 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1267 unmask(m, AF_INET6)); 1268 return (1); 1269 } 1270 } 1271 return (0); 1272 } 1273 1274 struct node_host * 1275 gen_dynnode(struct node_host *h, sa_family_t af) 1276 { 1277 struct node_host *n; 1278 struct pf_addr *m; 1279 1280 if (h->addr.type != PF_ADDR_DYNIFTL) 1281 return (NULL); 1282 1283 if ((n = calloc(1, sizeof(*n))) == NULL) 1284 return (NULL); 1285 bcopy(h, n, sizeof(*n)); 1286 n->ifname = NULL; 1287 n->next = NULL; 1288 n->tail = NULL; 1289 1290 /* fix up netmask */ 1291 m = &n->addr.v.a.mask; 1292 if (af == AF_INET && unmask(m, AF_INET6) > 32) 1293 set_ipmask(n, 32); 1294 1295 return (n); 1296 } 1297 1298 /* interface lookup routines */ 1299 1300 struct node_host *iftab; 1301 1302 void 1303 ifa_load(void) 1304 { 1305 struct ifaddrs *ifap, *ifa; 1306 struct node_host *n = NULL, *h = NULL; 1307 1308 if (getifaddrs(&ifap) < 0) 1309 err(1, "getifaddrs"); 1310 1311 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1312 if (!(ifa->ifa_addr->sa_family == AF_INET || 1313 ifa->ifa_addr->sa_family == AF_INET6 || 1314 ifa->ifa_addr->sa_family == AF_LINK)) 1315 continue; 1316 n = calloc(1, sizeof(struct node_host)); 1317 if (n == NULL) 1318 err(1, "address: calloc"); 1319 n->af = ifa->ifa_addr->sa_family; 1320 n->ifa_flags = ifa->ifa_flags; 1321 #ifdef __KAME__ 1322 if (n->af == AF_INET6 && 1323 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1324 ifa->ifa_addr)->sin6_addr) && 1325 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1326 0) { 1327 struct sockaddr_in6 *sin6; 1328 1329 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1330 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1331 sin6->sin6_addr.s6_addr[3]; 1332 sin6->sin6_addr.s6_addr[2] = 0; 1333 sin6->sin6_addr.s6_addr[3] = 0; 1334 } 1335 #endif 1336 n->ifindex = 0; 1337 if (n->af == AF_INET) { 1338 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *) 1339 ifa->ifa_addr)->sin_addr.s_addr, 1340 sizeof(struct in_addr)); 1341 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *) 1342 ifa->ifa_netmask)->sin_addr.s_addr, 1343 sizeof(struct in_addr)); 1344 if (ifa->ifa_broadaddr != NULL) 1345 memcpy(&n->bcast, &((struct sockaddr_in *) 1346 ifa->ifa_broadaddr)->sin_addr.s_addr, 1347 sizeof(struct in_addr)); 1348 if (ifa->ifa_dstaddr != NULL) 1349 memcpy(&n->peer, &((struct sockaddr_in *) 1350 ifa->ifa_dstaddr)->sin_addr.s_addr, 1351 sizeof(struct in_addr)); 1352 } else if (n->af == AF_INET6) { 1353 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *) 1354 ifa->ifa_addr)->sin6_addr.s6_addr, 1355 sizeof(struct in6_addr)); 1356 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *) 1357 ifa->ifa_netmask)->sin6_addr.s6_addr, 1358 sizeof(struct in6_addr)); 1359 if (ifa->ifa_broadaddr != NULL) 1360 memcpy(&n->bcast, &((struct sockaddr_in6 *) 1361 ifa->ifa_broadaddr)->sin6_addr.s6_addr, 1362 sizeof(struct in6_addr)); 1363 if (ifa->ifa_dstaddr != NULL) 1364 memcpy(&n->peer, &((struct sockaddr_in6 *) 1365 ifa->ifa_dstaddr)->sin6_addr.s6_addr, 1366 sizeof(struct in6_addr)); 1367 n->ifindex = ((struct sockaddr_in6 *) 1368 ifa->ifa_addr)->sin6_scope_id; 1369 } else if (n->af == AF_LINK) { 1370 n->ifindex = ((struct sockaddr_dl *) 1371 ifa->ifa_addr)->sdl_index; 1372 } 1373 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1374 err(1, "ifa_load: strdup"); 1375 n->next = NULL; 1376 n->tail = n; 1377 if (h == NULL) 1378 h = n; 1379 else { 1380 h->tail->next = n; 1381 h->tail = n; 1382 } 1383 } 1384 1385 iftab = h; 1386 freeifaddrs(ifap); 1387 } 1388 1389 unsigned int 1390 ifa_nametoindex(const char *ifa_name) 1391 { 1392 struct node_host *p; 1393 1394 for (p = iftab; p; p = p->next) { 1395 if (p->af == AF_LINK && strcmp(p->ifname, ifa_name) == 0) 1396 return (p->ifindex); 1397 } 1398 errno = ENXIO; 1399 return (0); 1400 } 1401 1402 char * 1403 ifa_indextoname(unsigned int ifindex, char *ifa_name) 1404 { 1405 struct node_host *p; 1406 1407 for (p = iftab; p; p = p->next) { 1408 if (p->af == AF_LINK && ifindex == p->ifindex) { 1409 strlcpy(ifa_name, p->ifname, IFNAMSIZ); 1410 return (ifa_name); 1411 } 1412 } 1413 errno = ENXIO; 1414 return (NULL); 1415 } 1416 1417 struct node_host * 1418 ifa_exists(const char *ifa_name) 1419 { 1420 struct node_host *n; 1421 struct ifgroupreq ifgr; 1422 int s; 1423 1424 if (iftab == NULL) 1425 ifa_load(); 1426 1427 /* check whether this is a group */ 1428 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 1429 err(1, "socket"); 1430 bzero(&ifgr, sizeof(ifgr)); 1431 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1432 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == 0) { 1433 /* fake a node_host */ 1434 if ((n = calloc(1, sizeof(*n))) == NULL) 1435 err(1, "calloc"); 1436 if ((n->ifname = strdup(ifa_name)) == NULL) 1437 err(1, "strdup"); 1438 close(s); 1439 return (n); 1440 } 1441 close(s); 1442 1443 for (n = iftab; n; n = n->next) { 1444 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1445 return (n); 1446 } 1447 1448 return (NULL); 1449 } 1450 1451 struct node_host * 1452 ifa_grouplookup(const char *ifa_name, int flags) 1453 { 1454 struct ifg_req *ifg; 1455 struct ifgroupreq ifgr; 1456 int s, len; 1457 struct node_host *n, *h = NULL; 1458 1459 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 1460 err(1, "socket"); 1461 bzero(&ifgr, sizeof(ifgr)); 1462 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1463 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) { 1464 close(s); 1465 return (NULL); 1466 } 1467 1468 len = ifgr.ifgr_len; 1469 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1470 err(1, "calloc"); 1471 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1472 err(1, "SIOCGIFGMEMB"); 1473 1474 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1475 ifg++) { 1476 len -= sizeof(struct ifg_req); 1477 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1478 continue; 1479 if (h == NULL) 1480 h = n; 1481 else { 1482 h->tail->next = n; 1483 h->tail = n->tail; 1484 } 1485 } 1486 free(ifgr.ifgr_groups); 1487 close(s); 1488 1489 return (h); 1490 } 1491 1492 struct node_host * 1493 ifa_lookup(const char *ifa_name, int flags) 1494 { 1495 struct node_host *p = NULL, *h = NULL, *n = NULL; 1496 int got4 = 0, got6 = 0; 1497 const char *last_if = NULL; 1498 1499 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1500 return (h); 1501 1502 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1503 ifa_name = NULL; 1504 1505 if (iftab == NULL) 1506 ifa_load(); 1507 1508 for (p = iftab; p; p = p->next) { 1509 if (ifa_skip_if(ifa_name, p)) 1510 continue; 1511 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1512 continue; 1513 if ((flags & PFI_AFLAG_BROADCAST) && 1514 !(p->ifa_flags & IFF_BROADCAST)) 1515 continue; 1516 if ((flags & PFI_AFLAG_PEER) && 1517 !(p->ifa_flags & IFF_POINTOPOINT)) 1518 continue; 1519 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1520 continue; 1521 if (last_if == NULL || strcmp(last_if, p->ifname)) 1522 got4 = got6 = 0; 1523 last_if = p->ifname; 1524 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1525 continue; 1526 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1527 continue; 1528 if (p->af == AF_INET) 1529 got4 = 1; 1530 else 1531 got6 = 1; 1532 n = calloc(1, sizeof(struct node_host)); 1533 if (n == NULL) 1534 err(1, "address: calloc"); 1535 n->af = p->af; 1536 if (flags & PFI_AFLAG_BROADCAST) 1537 memcpy(&n->addr.v.a.addr, &p->bcast, 1538 sizeof(struct pf_addr)); 1539 else if (flags & PFI_AFLAG_PEER) 1540 memcpy(&n->addr.v.a.addr, &p->peer, 1541 sizeof(struct pf_addr)); 1542 else 1543 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1544 sizeof(struct pf_addr)); 1545 if (flags & PFI_AFLAG_NETWORK) 1546 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af)); 1547 else { 1548 if (n->af == AF_INET) { 1549 if (p->ifa_flags & IFF_LOOPBACK && 1550 p->ifa_flags & IFF_LINK1) 1551 memcpy(&n->addr.v.a.mask, 1552 &p->addr.v.a.mask, 1553 sizeof(struct pf_addr)); 1554 else 1555 set_ipmask(n, 32); 1556 } else 1557 set_ipmask(n, 128); 1558 } 1559 n->ifindex = p->ifindex; 1560 1561 n->next = NULL; 1562 n->tail = n; 1563 if (h == NULL) 1564 h = n; 1565 else { 1566 h->tail->next = n; 1567 h->tail = n; 1568 } 1569 } 1570 return (h); 1571 } 1572 1573 int 1574 ifa_skip_if(const char *filter, struct node_host *p) 1575 { 1576 int n; 1577 1578 if (p->af != AF_INET && p->af != AF_INET6) 1579 return (1); 1580 if (filter == NULL || !*filter) 1581 return (0); 1582 if (!strcmp(p->ifname, filter)) 1583 return (0); /* exact match */ 1584 n = strlen(filter); 1585 if (n < 1 || n >= IFNAMSIZ) 1586 return (1); /* sanity check */ 1587 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1588 return (1); /* only do exact match in that case */ 1589 if (strncmp(p->ifname, filter, n)) 1590 return (1); /* prefix doesn't match */ 1591 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1592 } 1593 1594 struct node_host * 1595 host(const char *s) 1596 { 1597 struct node_host *h = NULL, *n; 1598 int mask = -1, v4mask = 32, v6mask = 128, cont = 1; 1599 char *p, *q, *r, *ps, *if_name; 1600 1601 if ((ps = strdup(s)) == NULL) 1602 err(1, "host: strdup"); 1603 1604 if ((if_name = strrchr(ps, '@')) != NULL) { 1605 if_name[0] = '\0'; 1606 if_name++; 1607 } 1608 1609 if ((p = strrchr(ps, '/')) != NULL) { 1610 if ((r = strdup(ps)) == NULL) 1611 err(1, "host: strdup"); 1612 mask = strtol(p+1, &q, 0); 1613 if (!q || *q || mask > 128 || q == (p+1)) { 1614 fprintf(stderr, "invalid netmask '%s'\n", p); 1615 free(r); 1616 free(ps); 1617 return (NULL); 1618 } 1619 p[0] = '\0'; 1620 v4mask = v6mask = mask; 1621 } else 1622 r = ps; 1623 1624 /* interface with this name exists? */ 1625 if (cont && (h = host_if(ps, mask)) != NULL) 1626 cont = 0; 1627 1628 /* IPv4 address? */ 1629 if (cont && (h = host_v4(r, mask)) != NULL) 1630 cont = 0; 1631 if (r != ps) 1632 free(r); 1633 1634 /* IPv6 address? */ 1635 if (cont && (h = host_v6(ps, v6mask)) != NULL) 1636 cont = 0; 1637 1638 /* dns lookup */ 1639 if (cont && (h = host_dns(ps, v4mask, v6mask)) != NULL) 1640 cont = 0; 1641 1642 if (if_name && if_name[0]) 1643 for (n = h; n != NULL; n = n->next) 1644 if ((n->ifname = strdup(if_name)) == NULL) 1645 err(1, "host: strdup"); 1646 1647 free(ps); /* after we copy the name out */ 1648 if (h == NULL || cont == 1) { 1649 fprintf(stderr, "no IP address found for %s\n", s); 1650 return (NULL); 1651 } 1652 for (n = h; n != NULL; n = n->next) { 1653 n->addr.type = PF_ADDR_ADDRMASK; 1654 n->weight = 0; 1655 } 1656 return (h); 1657 } 1658 1659 struct node_host * 1660 host_if(const char *s, int mask) 1661 { 1662 struct node_host *n, *h = NULL; 1663 char *p, *ps; 1664 int flags = 0; 1665 1666 if ((ps = strdup(s)) == NULL) 1667 err(1, "host_if: strdup"); 1668 while ((p = strrchr(ps, ':')) != NULL) { 1669 if (!strcmp(p+1, "network")) 1670 flags |= PFI_AFLAG_NETWORK; 1671 else if (!strcmp(p+1, "broadcast")) 1672 flags |= PFI_AFLAG_BROADCAST; 1673 else if (!strcmp(p+1, "peer")) 1674 flags |= PFI_AFLAG_PEER; 1675 else if (!strcmp(p+1, "0")) 1676 flags |= PFI_AFLAG_NOALIAS; 1677 else { 1678 free(ps); 1679 return (NULL); 1680 } 1681 *p = '\0'; 1682 } 1683 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1684 fprintf(stderr, "illegal combination of interface modifiers\n"); 1685 free(ps); 1686 return (NULL); 1687 } 1688 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1689 fprintf(stderr, "network or broadcast lookup, but " 1690 "extra netmask given\n"); 1691 free(ps); 1692 return (NULL); 1693 } 1694 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1695 /* interface with this name exists */ 1696 h = ifa_lookup(ps, flags); 1697 for (n = h; n != NULL && mask > -1; n = n->next) 1698 set_ipmask(n, mask); 1699 } 1700 1701 free(ps); 1702 return (h); 1703 } 1704 1705 struct node_host * 1706 host_v4(const char *s, int mask) 1707 { 1708 struct node_host *h = NULL; 1709 struct in_addr ina; 1710 int bits = 32; 1711 1712 memset(&ina, 0, sizeof(struct in_addr)); 1713 if (strrchr(s, '/') != NULL) { 1714 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1) 1715 return (NULL); 1716 } else { 1717 if (inet_pton(AF_INET, s, &ina) != 1) 1718 return (NULL); 1719 } 1720 1721 h = calloc(1, sizeof(struct node_host)); 1722 if (h == NULL) 1723 err(1, "address: calloc"); 1724 h->ifname = NULL; 1725 h->af = AF_INET; 1726 h->addr.v.a.addr.addr32[0] = ina.s_addr; 1727 set_ipmask(h, bits); 1728 h->next = NULL; 1729 h->tail = h; 1730 1731 return (h); 1732 } 1733 1734 struct node_host * 1735 host_v6(const char *s, int mask) 1736 { 1737 struct addrinfo hints, *res; 1738 struct node_host *h = NULL; 1739 1740 memset(&hints, 0, sizeof(hints)); 1741 hints.ai_family = AF_INET6; 1742 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1743 hints.ai_flags = AI_NUMERICHOST; 1744 if (getaddrinfo(s, "0", &hints, &res) == 0) { 1745 h = calloc(1, sizeof(struct node_host)); 1746 if (h == NULL) 1747 err(1, "address: calloc"); 1748 h->ifname = NULL; 1749 h->af = AF_INET6; 1750 memcpy(&h->addr.v.a.addr, 1751 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 1752 sizeof(h->addr.v.a.addr)); 1753 h->ifindex = 1754 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1755 set_ipmask(h, mask); 1756 freeaddrinfo(res); 1757 h->next = NULL; 1758 h->tail = h; 1759 } 1760 1761 return (h); 1762 } 1763 1764 struct node_host * 1765 host_dns(const char *s, int v4mask, int v6mask) 1766 { 1767 struct addrinfo hints, *res0, *res; 1768 struct node_host *n, *h = NULL; 1769 int error, noalias = 0; 1770 int got4 = 0, got6 = 0; 1771 char *p, *ps; 1772 1773 if ((ps = strdup(s)) == NULL) 1774 err(1, "host_dns: strdup"); 1775 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1776 noalias = 1; 1777 *p = '\0'; 1778 } 1779 memset(&hints, 0, sizeof(hints)); 1780 hints.ai_family = PF_UNSPEC; 1781 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1782 error = getaddrinfo(ps, NULL, &hints, &res0); 1783 if (error) { 1784 free(ps); 1785 return (h); 1786 } 1787 1788 for (res = res0; res; res = res->ai_next) { 1789 if (res->ai_family != AF_INET && 1790 res->ai_family != AF_INET6) 1791 continue; 1792 if (noalias) { 1793 if (res->ai_family == AF_INET) { 1794 if (got4) 1795 continue; 1796 got4 = 1; 1797 } else { 1798 if (got6) 1799 continue; 1800 got6 = 1; 1801 } 1802 } 1803 n = calloc(1, sizeof(struct node_host)); 1804 if (n == NULL) 1805 err(1, "host_dns: calloc"); 1806 n->ifname = NULL; 1807 n->af = res->ai_family; 1808 if (res->ai_family == AF_INET) { 1809 memcpy(&n->addr.v.a.addr, 1810 &((struct sockaddr_in *) 1811 res->ai_addr)->sin_addr.s_addr, 1812 sizeof(struct in_addr)); 1813 set_ipmask(n, v4mask); 1814 } else { 1815 memcpy(&n->addr.v.a.addr, 1816 &((struct sockaddr_in6 *) 1817 res->ai_addr)->sin6_addr.s6_addr, 1818 sizeof(struct in6_addr)); 1819 n->ifindex = 1820 ((struct sockaddr_in6 *) 1821 res->ai_addr)->sin6_scope_id; 1822 set_ipmask(n, v6mask); 1823 } 1824 n->next = NULL; 1825 n->tail = n; 1826 if (h == NULL) 1827 h = n; 1828 else { 1829 h->tail->next = n; 1830 h->tail = n; 1831 } 1832 } 1833 freeaddrinfo(res0); 1834 free(ps); 1835 1836 return (h); 1837 } 1838 1839 /* 1840 * convert a hostname to a list of addresses and put them in the given buffer. 1841 * test: 1842 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1843 */ 1844 int 1845 append_addr(struct pfr_buffer *b, char *s, int test) 1846 { 1847 static int previous = 0; 1848 static int expect = 0; 1849 struct pfr_addr *a; 1850 struct node_host *h, *n; 1851 char *r; 1852 const char *errstr; 1853 int rv, not = 0, i = 0; 1854 u_int16_t weight; 1855 1856 /* skip weight if given */ 1857 if (strcmp(s, "weight") == 0) { 1858 expect = 1; 1859 return (1); /* expecting further call */ 1860 } 1861 1862 /* check if previous host is set */ 1863 if (expect) { 1864 /* parse and append load balancing weight */ 1865 weight = strtonum(s, 1, USHRT_MAX, &errstr); 1866 if (errstr) { 1867 fprintf(stderr, "failed to convert weight %s\n", s); 1868 return (-1); 1869 } 1870 if (previous != -1) { 1871 PFRB_FOREACH(a, b) { 1872 if (++i >= previous) { 1873 a->pfra_weight = weight; 1874 a->pfra_type = PFRKE_COST; 1875 } 1876 } 1877 } 1878 1879 expect = 0; 1880 return (0); 1881 } 1882 1883 for (r = s; *r == '!'; r++) 1884 not = !not; 1885 if ((n = host(r)) == NULL) { 1886 errno = 0; 1887 return (-1); 1888 } 1889 rv = append_addr_host(b, n, test, not); 1890 previous = b->pfrb_size; 1891 do { 1892 h = n; 1893 n = n->next; 1894 free(h); 1895 } while (n != NULL); 1896 return (rv); 1897 } 1898 1899 /* 1900 * same as previous function, but with a pre-parsed input and the ability 1901 * to "negate" the result. Does not free the node_host list. 1902 * not: 1903 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1904 */ 1905 int 1906 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1907 { 1908 int bits; 1909 struct pfr_addr addr; 1910 1911 do { 1912 bzero(&addr, sizeof(addr)); 1913 addr.pfra_not = n->not ^ not; 1914 addr.pfra_af = n->af; 1915 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af); 1916 if (n->ifname) { 1917 if (strlcpy(addr.pfra_ifname, n->ifname, 1918 sizeof(addr.pfra_ifname)) >= sizeof(addr.pfra_ifname)) 1919 errx(1, "append_addr_host: strlcpy"); 1920 addr.pfra_type = PFRKE_ROUTE; 1921 } 1922 if (n->weight > 0) { 1923 addr.pfra_weight = n->weight; 1924 addr.pfra_type = PFRKE_COST; 1925 } 1926 switch (n->af) { 1927 case AF_INET: 1928 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 1929 bits = 32; 1930 break; 1931 case AF_INET6: 1932 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 1933 sizeof(struct in6_addr)); 1934 bits = 128; 1935 break; 1936 default: 1937 errno = EINVAL; 1938 return (-1); 1939 } 1940 if ((test && (not || addr.pfra_net != bits)) || 1941 addr.pfra_net > bits) { 1942 errno = EINVAL; 1943 return (-1); 1944 } 1945 if (pfr_buf_add(b, &addr)) 1946 return (-1); 1947 } while ((n = n->next) != NULL); 1948 1949 return (0); 1950 } 1951 1952 int 1953 pfctl_add_trans(struct pfr_buffer *buf, int type, const char *anchor) 1954 { 1955 struct pfioc_trans_e trans; 1956 1957 bzero(&trans, sizeof(trans)); 1958 trans.type = type; 1959 if (strlcpy(trans.anchor, anchor, 1960 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 1961 errx(1, "pfctl_add_trans: strlcpy"); 1962 1963 return pfr_buf_add(buf, &trans); 1964 } 1965 1966 u_int32_t 1967 pfctl_get_ticket(struct pfr_buffer *buf, int type, const char *anchor) 1968 { 1969 struct pfioc_trans_e *p; 1970 1971 PFRB_FOREACH(p, buf) 1972 if (type == p->type && !strcmp(anchor, p->anchor)) 1973 return (p->ticket); 1974 errx(1, "pfctl_get_ticket: assertion failed"); 1975 } 1976 1977 int 1978 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 1979 { 1980 struct pfioc_trans trans; 1981 1982 bzero(&trans, sizeof(trans)); 1983 trans.size = buf->pfrb_size - from; 1984 trans.esize = sizeof(struct pfioc_trans_e); 1985 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 1986 return ioctl(dev, cmd, &trans); 1987 } 1988