1 /* $OpenBSD: pfctl_parser.c,v 1.318 2017/11/28 16:05:47 bluhm 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 <arpa/inet.h> 45 46 #include <ctype.h> 47 #include <err.h> 48 #include <errno.h> 49 #include <ifaddrs.h> 50 #include <limits.h> 51 #include <netdb.h> 52 #include <stdarg.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <time.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, 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 { "beyond-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_BEYONDSCOPE }, 177 { "addr-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADDR }, 178 { "port-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOPORT }, 179 { "transit", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_TRANSIT }, 180 { "reassemb", ICMP6_TIME_EXCEEDED, ICMP6_TIME_EXCEED_REASSEMBLY }, 181 { "badhead", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_HEADER }, 182 { "nxthdr", ICMP6_PARAM_PROB, ICMP6_PARAMPROB_NEXTHEADER }, 183 { "redironlink", ND_REDIRECT, ND_REDIRECT_ONLINK }, 184 { "redirrouter", ND_REDIRECT, ND_REDIRECT_ROUTER } 185 }; 186 187 const struct pf_timeout pf_timeouts[] = { 188 { "tcp.first", PFTM_TCP_FIRST_PACKET }, 189 { "tcp.opening", PFTM_TCP_OPENING }, 190 { "tcp.established", PFTM_TCP_ESTABLISHED }, 191 { "tcp.closing", PFTM_TCP_CLOSING }, 192 { "tcp.finwait", PFTM_TCP_FIN_WAIT }, 193 { "tcp.closed", PFTM_TCP_CLOSED }, 194 { "tcp.tsdiff", PFTM_TS_DIFF }, 195 { "udp.first", PFTM_UDP_FIRST_PACKET }, 196 { "udp.single", PFTM_UDP_SINGLE }, 197 { "udp.multiple", PFTM_UDP_MULTIPLE }, 198 { "icmp.first", PFTM_ICMP_FIRST_PACKET }, 199 { "icmp.error", PFTM_ICMP_ERROR_REPLY }, 200 { "other.first", PFTM_OTHER_FIRST_PACKET }, 201 { "other.single", PFTM_OTHER_SINGLE }, 202 { "other.multiple", PFTM_OTHER_MULTIPLE }, 203 { "frag", PFTM_FRAG }, 204 { "interval", PFTM_INTERVAL }, 205 { "adaptive.start", PFTM_ADAPTIVE_START }, 206 { "adaptive.end", PFTM_ADAPTIVE_END }, 207 { "src.track", PFTM_SRC_NODE }, 208 { NULL, 0 } 209 }; 210 211 enum { PF_POOL_ROUTE, PF_POOL_NAT, PF_POOL_RDR }; 212 213 const struct icmptypeent * 214 geticmptypebynumber(u_int8_t type, sa_family_t af) 215 { 216 unsigned int i; 217 218 if (af != AF_INET6) { 219 for (i=0; i < (sizeof (icmp_type) / sizeof(icmp_type[0])); 220 i++) { 221 if (type == icmp_type[i].type) 222 return (&icmp_type[i]); 223 } 224 } else { 225 for (i=0; i < (sizeof (icmp6_type) / 226 sizeof(icmp6_type[0])); i++) { 227 if (type == icmp6_type[i].type) 228 return (&icmp6_type[i]); 229 } 230 } 231 return (NULL); 232 } 233 234 const struct icmptypeent * 235 geticmptypebyname(char *w, sa_family_t af) 236 { 237 unsigned int i; 238 239 if (af != AF_INET6) { 240 for (i=0; i < (sizeof (icmp_type) / sizeof(icmp_type[0])); 241 i++) { 242 if (!strcmp(w, icmp_type[i].name)) 243 return (&icmp_type[i]); 244 } 245 } else { 246 for (i=0; i < (sizeof (icmp6_type) / 247 sizeof(icmp6_type[0])); i++) { 248 if (!strcmp(w, icmp6_type[i].name)) 249 return (&icmp6_type[i]); 250 } 251 } 252 return (NULL); 253 } 254 255 const struct icmpcodeent * 256 geticmpcodebynumber(u_int8_t type, u_int8_t code, sa_family_t af) 257 { 258 unsigned int i; 259 260 if (af != AF_INET6) { 261 for (i=0; i < (sizeof (icmp_code) / sizeof(icmp_code[0])); 262 i++) { 263 if (type == icmp_code[i].type && 264 code == icmp_code[i].code) 265 return (&icmp_code[i]); 266 } 267 } else { 268 for (i=0; i < (sizeof (icmp6_code) / 269 sizeof(icmp6_code[0])); i++) { 270 if (type == icmp6_code[i].type && 271 code == icmp6_code[i].code) 272 return (&icmp6_code[i]); 273 } 274 } 275 return (NULL); 276 } 277 278 const struct icmpcodeent * 279 geticmpcodebyname(u_long type, char *w, sa_family_t af) 280 { 281 unsigned int i; 282 283 if (af != AF_INET6) { 284 for (i=0; i < (sizeof (icmp_code) / sizeof(icmp_code[0])); 285 i++) { 286 if (type == icmp_code[i].type && 287 !strcmp(w, icmp_code[i].name)) 288 return (&icmp_code[i]); 289 } 290 } else { 291 for (i=0; i < (sizeof (icmp6_code) / 292 sizeof(icmp6_code[0])); i++) { 293 if (type == icmp6_code[i].type && 294 !strcmp(w, icmp6_code[i].name)) 295 return (&icmp6_code[i]); 296 } 297 } 298 return (NULL); 299 } 300 301 /* 302 * Decode a symbolic name to a numeric value. 303 * From syslogd. 304 */ 305 int 306 string_to_loglevel(const char *name) 307 { 308 CODE *c; 309 char *p, buf[40]; 310 311 if (isdigit((unsigned char)*name)) { 312 const char *errstr; 313 int val; 314 315 val = strtonum(name, 0, LOG_DEBUG, &errstr); 316 if (errstr) 317 return -1; 318 return val; 319 } 320 321 for (p = buf; *name && p < &buf[sizeof(buf) - 1]; p++, name++) { 322 if (isupper((unsigned char)*name)) 323 *p = tolower((unsigned char)*name); 324 else 325 *p = *name; 326 } 327 *p = '\0'; 328 for (c = prioritynames; c->c_name; c++) 329 if (!strcmp(buf, c->c_name) && c->c_val != INTERNAL_NOPRI) 330 return (c->c_val); 331 332 return (-1); 333 } 334 335 const char * 336 loglevel_to_string(int level) 337 { 338 CODE *c; 339 340 for (c = prioritynames; c->c_name; c++) 341 if (c->c_val == level) 342 return (c->c_name); 343 344 return ("unknown"); 345 } 346 347 void 348 print_op(u_int8_t op, const char *a1, const char *a2) 349 { 350 if (op == PF_OP_IRG) 351 printf(" %s >< %s", a1, a2); 352 else if (op == PF_OP_XRG) 353 printf(" %s <> %s", a1, a2); 354 else if (op == PF_OP_EQ) 355 printf(" = %s", a1); 356 else if (op == PF_OP_NE) 357 printf(" != %s", a1); 358 else if (op == PF_OP_LT) 359 printf(" < %s", a1); 360 else if (op == PF_OP_LE) 361 printf(" <= %s", a1); 362 else if (op == PF_OP_GT) 363 printf(" > %s", a1); 364 else if (op == PF_OP_GE) 365 printf(" >= %s", a1); 366 else if (op == PF_OP_RRG) 367 printf(" %s:%s", a1, a2); 368 } 369 370 void 371 print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int opts) 372 { 373 char a1[6], a2[6]; 374 struct servent *s = NULL; 375 376 if (opts & PF_OPT_PORTNAMES) 377 s = getservbyport(p1, proto); 378 p1 = ntohs(p1); 379 p2 = ntohs(p2); 380 snprintf(a1, sizeof(a1), "%u", p1); 381 snprintf(a2, sizeof(a2), "%u", p2); 382 printf(" port"); 383 if (s != NULL && (op == PF_OP_EQ || op == PF_OP_NE)) 384 print_op(op, s->s_name, a2); 385 else 386 print_op(op, a1, a2); 387 } 388 389 void 390 print_ugid(u_int8_t op, unsigned u1, unsigned u2, const char *t, unsigned umax) 391 { 392 char a1[11], a2[11]; 393 394 snprintf(a1, sizeof(a1), "%u", u1); 395 snprintf(a2, sizeof(a2), "%u", u2); 396 printf(" %s", t); 397 if (u1 == umax && (op == PF_OP_EQ || op == PF_OP_NE)) 398 print_op(op, "unknown", a2); 399 else 400 print_op(op, a1, a2); 401 } 402 403 void 404 print_flags(u_int8_t f) 405 { 406 int i; 407 408 for (i = 0; tcpflags[i]; ++i) 409 if (f & (1 << i)) 410 printf("%c", tcpflags[i]); 411 } 412 413 void 414 print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst, 415 sa_family_t af, u_int8_t proto, int opts) 416 { 417 char buf[PF_OSFP_LEN*3]; 418 int verbose = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 419 if (src->addr.type == PF_ADDR_ADDRMASK && 420 dst->addr.type == PF_ADDR_ADDRMASK && 421 PF_AZERO(&src->addr.v.a.addr, AF_INET6) && 422 PF_AZERO(&src->addr.v.a.mask, AF_INET6) && 423 PF_AZERO(&dst->addr.v.a.addr, AF_INET6) && 424 PF_AZERO(&dst->addr.v.a.mask, AF_INET6) && 425 !src->neg && !dst->neg && 426 !src->port_op && !dst->port_op && 427 osfp == PF_OSFP_ANY) 428 printf(" all"); 429 else { 430 printf(" from "); 431 if (src->neg) 432 printf("! "); 433 print_addr(&src->addr, af, verbose); 434 if (src->port_op) 435 print_port(src->port_op, src->port[0], 436 src->port[1], 437 proto == IPPROTO_TCP ? "tcp" : "udp", opts); 438 if (osfp != PF_OSFP_ANY) 439 printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf, 440 sizeof(buf))); 441 442 printf(" to "); 443 if (dst->neg) 444 printf("! "); 445 print_addr(&dst->addr, af, verbose); 446 if (dst->port_op) 447 print_port(dst->port_op, dst->port[0], 448 dst->port[1], 449 proto == IPPROTO_TCP ? "tcp" : "udp", opts); 450 } 451 } 452 453 void 454 print_pool(struct pf_pool *pool, u_int16_t p1, u_int16_t p2, 455 sa_family_t af, int id, int verbose) 456 { 457 if (pool->ifname[0]) { 458 if (!PF_AZERO(&pool->addr.v.a.addr, af)) { 459 print_addr(&pool->addr, af, verbose); 460 printf("@"); 461 } 462 printf("%s", pool->ifname); 463 } else 464 print_addr(&pool->addr, af, verbose); 465 switch (id) { 466 case PF_POOL_NAT: 467 if ((p1 != PF_NAT_PROXY_PORT_LOW || 468 p2 != PF_NAT_PROXY_PORT_HIGH) && (p1 != 0 || p2 != 0)) { 469 if (p1 == p2) 470 printf(" port %u", p1); 471 else 472 printf(" port %u:%u", p1, p2); 473 } 474 break; 475 case PF_POOL_RDR: 476 if (p1) { 477 printf(" port %u", p1); 478 if (p2 && (p2 != p1)) 479 printf(":%u", p2); 480 } 481 break; 482 default: 483 break; 484 } 485 switch (pool->opts & PF_POOL_TYPEMASK) { 486 case PF_POOL_NONE: 487 break; 488 case PF_POOL_BITMASK: 489 printf(" bitmask"); 490 break; 491 case PF_POOL_RANDOM: 492 printf(" random"); 493 break; 494 case PF_POOL_SRCHASH: 495 printf(" source-hash 0x%08x%08x%08x%08x", 496 pool->key.key32[0], pool->key.key32[1], 497 pool->key.key32[2], pool->key.key32[3]); 498 break; 499 case PF_POOL_ROUNDROBIN: 500 printf(" round-robin"); 501 break; 502 case PF_POOL_LEASTSTATES: 503 printf(" least-states"); 504 break; 505 } 506 if (pool->opts & PF_POOL_STICKYADDR) 507 printf(" sticky-address"); 508 if (id == PF_POOL_NAT && p1 == 0 && p2 == 0) 509 printf(" static-port"); 510 } 511 512 const char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES; 513 const char *pf_lcounters[LCNT_MAX+1] = LCNT_NAMES; 514 const char *pf_fcounters[FCNT_MAX+1] = FCNT_NAMES; 515 const char *pf_scounters[FCNT_MAX+1] = FCNT_NAMES; 516 517 void 518 print_status(struct pf_status *s, int opts) 519 { 520 char statline[80], *running, *debug; 521 time_t runtime = 0; 522 struct timespec uptime; 523 int i; 524 char buf[PF_MD5_DIGEST_LENGTH * 2 + 1]; 525 static const char hex[] = "0123456789abcdef"; 526 527 if (!clock_gettime(CLOCK_UPTIME, &uptime)) 528 runtime = uptime.tv_sec - s->since; 529 running = s->running ? "Enabled" : "Disabled"; 530 531 if (runtime) { 532 unsigned int sec, min, hrs; 533 time_t day = runtime; 534 535 sec = day % 60; 536 day /= 60; 537 min = day % 60; 538 day /= 60; 539 hrs = day % 24; 540 day /= 24; 541 snprintf(statline, sizeof(statline), 542 "Status: %s for %lld days %.2u:%.2u:%.2u", 543 running, (long long)day, hrs, min, sec); 544 } else 545 snprintf(statline, sizeof(statline), "Status: %s", running); 546 printf("%-44s", statline); 547 if (asprintf(&debug, "Debug: %s", loglevel_to_string(s->debug)) != -1) { 548 printf("%15s\n\n", debug); 549 free(debug); 550 } 551 552 if (opts & PF_OPT_VERBOSE) { 553 printf("Hostid: 0x%08x\n", ntohl(s->hostid)); 554 555 for (i = 0; i < PF_MD5_DIGEST_LENGTH; i++) { 556 buf[i + i] = hex[s->pf_chksum[i] >> 4]; 557 buf[i + i + 1] = hex[s->pf_chksum[i] & 0x0f]; 558 } 559 buf[i + i] = '\0'; 560 printf("Checksum: 0x%s\n\n", buf); 561 } 562 563 if (s->ifname[0] != 0) { 564 printf("Interface Stats for %-16s %5s %16s\n", 565 s->ifname, "IPv4", "IPv6"); 566 printf(" %-25s %14llu %16llu\n", "Bytes In", 567 (unsigned long long)s->bcounters[0][0], 568 (unsigned long long)s->bcounters[1][0]); 569 printf(" %-25s %14llu %16llu\n", "Bytes Out", 570 (unsigned long long)s->bcounters[0][1], 571 (unsigned long long)s->bcounters[1][1]); 572 printf(" Packets In\n"); 573 printf(" %-23s %14llu %16llu\n", "Passed", 574 (unsigned long long)s->pcounters[0][0][PF_PASS], 575 (unsigned long long)s->pcounters[1][0][PF_PASS]); 576 printf(" %-23s %14llu %16llu\n", "Blocked", 577 (unsigned long long)s->pcounters[0][0][PF_DROP], 578 (unsigned long long)s->pcounters[1][0][PF_DROP]); 579 printf(" Packets Out\n"); 580 printf(" %-23s %14llu %16llu\n", "Passed", 581 (unsigned long long)s->pcounters[0][1][PF_PASS], 582 (unsigned long long)s->pcounters[1][1][PF_PASS]); 583 printf(" %-23s %14llu %16llu\n\n", "Blocked", 584 (unsigned long long)s->pcounters[0][1][PF_DROP], 585 (unsigned long long)s->pcounters[1][1][PF_DROP]); 586 } 587 printf("%-27s %14s %16s\n", "State Table", "Total", "Rate"); 588 printf(" %-25s %14u %14s\n", "current entries", s->states, ""); 589 printf(" %-25s %14u %14s\n", "half-open tcp", s->states_halfopen, ""); 590 for (i = 0; i < FCNT_MAX; i++) { 591 printf(" %-25s %14llu ", pf_fcounters[i], 592 (unsigned long long)s->fcounters[i]); 593 if (runtime > 0) 594 printf("%14.1f/s\n", 595 (double)s->fcounters[i] / (double)runtime); 596 else 597 printf("%14s\n", ""); 598 } 599 if (opts & PF_OPT_VERBOSE) { 600 printf("Source Tracking Table\n"); 601 printf(" %-25s %14u %14s\n", "current entries", 602 s->src_nodes, ""); 603 for (i = 0; i < SCNT_MAX; i++) { 604 printf(" %-25s %14lld ", pf_scounters[i], 605 s->scounters[i]); 606 if (runtime > 0) 607 printf("%14.1f/s\n", 608 (double)s->scounters[i] / (double)runtime); 609 else 610 printf("%14s\n", ""); 611 } 612 } 613 printf("Counters\n"); 614 for (i = 0; i < PFRES_MAX; i++) { 615 printf(" %-25s %14llu ", pf_reasons[i], 616 (unsigned long long)s->counters[i]); 617 if (runtime > 0) 618 printf("%14.1f/s\n", 619 (double)s->counters[i] / (double)runtime); 620 else 621 printf("%14s\n", ""); 622 } 623 if (opts & PF_OPT_VERBOSE) { 624 printf("Limit Counters\n"); 625 for (i = 0; i < LCNT_MAX; i++) { 626 printf(" %-25s %14lld ", pf_lcounters[i], 627 s->lcounters[i]); 628 if (runtime > 0) 629 printf("%14.1f/s\n", 630 (double)s->lcounters[i] / (double)runtime); 631 else 632 printf("%14s\n", ""); 633 } 634 } 635 } 636 637 void 638 print_src_node(struct pf_src_node *sn, int opts) 639 { 640 struct pf_addr_wrap aw; 641 int min, sec; 642 643 memset(&aw, 0, sizeof(aw)); 644 if (sn->af == AF_INET) 645 aw.v.a.mask.addr32[0] = 0xffffffff; 646 else 647 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask)); 648 649 aw.v.a.addr = sn->addr; 650 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2); 651 652 if (!PF_AZERO(&sn->raddr, sn->af)) { 653 if (sn->type == PF_SN_NAT) 654 printf(" nat-to "); 655 else if (sn->type == PF_SN_RDR) 656 printf(" rdr-to "); 657 else if (sn->type == PF_SN_ROUTE) 658 printf(" route-to "); 659 else 660 printf(" ??? (%u) ", sn->type); 661 aw.v.a.addr = sn->raddr; 662 print_addr(&aw, sn->naf ? sn->naf : sn->af, 663 opts & PF_OPT_VERBOSE2); 664 } 665 666 printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states, 667 sn->conn, sn->conn_rate.count / 1000, 668 (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds); 669 if (opts & PF_OPT_VERBOSE) { 670 sec = sn->creation % 60; 671 sn->creation /= 60; 672 min = sn->creation % 60; 673 sn->creation /= 60; 674 printf(" age %.2u:%.2u:%.2u", sn->creation, min, sec); 675 if (sn->states == 0) { 676 sec = sn->expire % 60; 677 sn->expire /= 60; 678 min = sn->expire % 60; 679 sn->expire /= 60; 680 printf(", expires in %.2u:%.2u:%.2u", 681 sn->expire, min, sec); 682 } 683 printf(", %llu pkts, %llu bytes", 684 sn->packets[0] + sn->packets[1], 685 sn->bytes[0] + sn->bytes[1]); 686 if (sn->rule.nr != -1) 687 printf(", rule %u", sn->rule.nr); 688 printf("\n"); 689 } 690 } 691 692 void 693 print_rule(struct pf_rule *r, const char *anchor_call, int opts) 694 { 695 static const char *actiontypes[] = { "pass", "block", "scrub", 696 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr", 697 "", "", "match"}; 698 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 699 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 700 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 701 int i, ropts; 702 int verbose = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 703 char *p; 704 705 if ((r->rule_flag & PFRULE_EXPIRED) && (!verbose)) 706 return; 707 708 if (verbose) 709 printf("@%d ", r->nr); 710 711 if (r->action > PF_MATCH) 712 printf("action(%d)", r->action); 713 else if (anchor_call[0]) { 714 p = strrchr(anchor_call, '/'); 715 if (p ? p[1] == '_' : anchor_call[0] == '_') 716 printf("%s", anchortypes[r->action]); 717 else 718 printf("%s \"%s\"", anchortypes[r->action], 719 anchor_call); 720 } else 721 printf("%s", actiontypes[r->action]); 722 if (r->action == PF_DROP) { 723 if (r->rule_flag & PFRULE_RETURN) 724 printf(" return"); 725 else if (r->rule_flag & PFRULE_RETURNRST) { 726 if (!r->return_ttl) 727 printf(" return-rst"); 728 else 729 printf(" return-rst(ttl %d)", r->return_ttl); 730 } else if (r->rule_flag & PFRULE_RETURNICMP) { 731 const struct icmpcodeent *ic, *ic6; 732 733 ic = geticmpcodebynumber(r->return_icmp >> 8, 734 r->return_icmp & 255, AF_INET); 735 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 736 r->return_icmp6 & 255, AF_INET6); 737 738 switch (r->af) { 739 case AF_INET: 740 printf(" return-icmp"); 741 if (ic == NULL) 742 printf("(%u)", r->return_icmp & 255); 743 else 744 printf("(%s)", ic->name); 745 break; 746 case AF_INET6: 747 printf(" return-icmp6"); 748 if (ic6 == NULL) 749 printf("(%u)", r->return_icmp6 & 255); 750 else 751 printf("(%s)", ic6->name); 752 break; 753 default: 754 printf(" return-icmp"); 755 if (ic == NULL) 756 printf("(%u, ", r->return_icmp & 255); 757 else 758 printf("(%s, ", ic->name); 759 if (ic6 == NULL) 760 printf("%u)", r->return_icmp6 & 255); 761 else 762 printf("%s)", ic6->name); 763 break; 764 } 765 } else 766 printf(" drop"); 767 } 768 if (r->direction == PF_IN) 769 printf(" in"); 770 else if (r->direction == PF_OUT) 771 printf(" out"); 772 if (r->log) { 773 printf(" log"); 774 if (r->log & ~PF_LOG || r->logif) { 775 int count = 0; 776 777 printf(" ("); 778 if (r->log & PF_LOG_ALL) 779 printf("%sall", count++ ? ", " : ""); 780 if (r->log & PF_LOG_MATCHES) 781 printf("%smatches", count++ ? ", " : ""); 782 if (r->log & PF_LOG_SOCKET_LOOKUP) 783 printf("%suser", count++ ? ", " : ""); 784 if (r->logif) 785 printf("%sto pflog%u", count++ ? ", " : "", 786 r->logif); 787 printf(")"); 788 } 789 } 790 if (r->quick) 791 printf(" quick"); 792 if (r->ifname[0]) { 793 if (r->ifnot) 794 printf(" on ! %s", r->ifname); 795 else 796 printf(" on %s", r->ifname); 797 } 798 if (r->onrdomain >= 0) { 799 if (r->ifnot) 800 printf(" on ! rdomain %d", r->onrdomain); 801 else 802 printf(" on rdomain %d", r->onrdomain); 803 } 804 if (r->af) { 805 if (r->af == AF_INET) 806 printf(" inet"); 807 else 808 printf(" inet6"); 809 } 810 if (r->proto) { 811 struct protoent *p; 812 813 if ((p = getprotobynumber(r->proto)) != NULL) 814 printf(" proto %s", p->p_name); 815 else 816 printf(" proto %u", r->proto); 817 } 818 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 819 opts); 820 if (r->rcv_ifname[0]) 821 printf(" %sreceived-on %s", r->rcvifnot ? "!" : "", 822 r->rcv_ifname); 823 if (r->uid.op) 824 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 825 UID_MAX); 826 if (r->gid.op) 827 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 828 GID_MAX); 829 if (r->flags || r->flagset) { 830 printf(" flags "); 831 print_flags(r->flags); 832 printf("/"); 833 print_flags(r->flagset); 834 } else if ((r->action == PF_PASS || r->action == PF_MATCH) && 835 (!r->proto || r->proto == IPPROTO_TCP) && 836 !(r->rule_flag & PFRULE_FRAGMENT) && 837 !anchor_call[0] && r->keep_state) 838 printf(" flags any"); 839 if (r->type) { 840 const struct icmptypeent *it; 841 842 it = geticmptypebynumber(r->type-1, r->af); 843 if (r->af != AF_INET6) 844 printf(" icmp-type"); 845 else 846 printf(" icmp6-type"); 847 if (it != NULL) 848 printf(" %s", it->name); 849 else 850 printf(" %u", r->type-1); 851 if (r->code) { 852 const struct icmpcodeent *ic; 853 854 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 855 if (ic != NULL) 856 printf(" code %s", ic->name); 857 else 858 printf(" code %u", r->code-1); 859 } 860 } 861 if (r->tos) 862 printf(" tos 0x%2.2x", r->tos); 863 if (r->prio) 864 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio); 865 if (r->pktrate.limit) 866 printf(" max-pkt-rate %u/%u", r->pktrate.limit, 867 r->pktrate.seconds); 868 869 if (r->scrub_flags & PFSTATE_SETMASK || r->qname[0]) { 870 char *comma = ""; 871 printf(" set ("); 872 if (r->scrub_flags & PFSTATE_SETPRIO) { 873 if (r->set_prio[0] == r->set_prio[1]) 874 printf("%s prio %u", comma, r->set_prio[0]); 875 else 876 printf("%s prio(%u, %u)", comma, r->set_prio[0], 877 r->set_prio[1]); 878 comma = ","; 879 } 880 if (r->qname[0]) { 881 if (r->pqname[0]) 882 printf("%s queue(%s, %s)", comma, r->qname, 883 r->pqname); 884 else 885 printf("%s queue %s", comma, r->qname); 886 comma = ","; 887 } 888 if (r->scrub_flags & PFSTATE_SETTOS) { 889 printf("%s tos 0x%2.2x", comma, r->set_tos); 890 comma = ","; 891 } 892 printf(" )"); 893 } 894 895 ropts = 0; 896 if (r->max_states || r->max_src_nodes || r->max_src_states) 897 ropts = 1; 898 if (r->rule_flag & PFRULE_NOSYNC) 899 ropts = 1; 900 if (r->rule_flag & PFRULE_SRCTRACK) 901 ropts = 1; 902 if (r->rule_flag & PFRULE_IFBOUND) 903 ropts = 1; 904 if (r->rule_flag & PFRULE_STATESLOPPY) 905 ropts = 1; 906 if (r->rule_flag & PFRULE_PFLOW) 907 ropts = 1; 908 for (i = 0; !ropts && i < PFTM_MAX; ++i) 909 if (r->timeout[i]) 910 ropts = 1; 911 912 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 913 printf(" no state"); 914 else if (r->keep_state == PF_STATE_NORMAL && ropts) 915 printf(" keep state"); 916 else if (r->keep_state == PF_STATE_MODULATE) 917 printf(" modulate state"); 918 else if (r->keep_state == PF_STATE_SYNPROXY) 919 printf(" synproxy state"); 920 if (r->prob) { 921 char buf[20]; 922 923 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 924 for (i = strlen(buf)-1; i > 0; i--) { 925 if (buf[i] == '0') 926 buf[i] = '\0'; 927 else { 928 if (buf[i] == '.') 929 buf[i] = '\0'; 930 break; 931 } 932 } 933 printf(" probability %s%%", buf); 934 } 935 if (ropts) { 936 printf(" ("); 937 if (r->max_states) { 938 printf("max %u", r->max_states); 939 ropts = 0; 940 } 941 if (r->rule_flag & PFRULE_NOSYNC) { 942 if (!ropts) 943 printf(", "); 944 printf("no-sync"); 945 ropts = 0; 946 } 947 if (r->rule_flag & PFRULE_SRCTRACK) { 948 if (!ropts) 949 printf(", "); 950 printf("source-track"); 951 if (r->rule_flag & PFRULE_RULESRCTRACK) 952 printf(" rule"); 953 else 954 printf(" global"); 955 ropts = 0; 956 } 957 if (r->max_src_states) { 958 if (!ropts) 959 printf(", "); 960 printf("max-src-states %u", r->max_src_states); 961 ropts = 0; 962 } 963 if (r->max_src_conn) { 964 if (!ropts) 965 printf(", "); 966 printf("max-src-conn %u", r->max_src_conn); 967 ropts = 0; 968 } 969 if (r->max_src_conn_rate.limit) { 970 if (!ropts) 971 printf(", "); 972 printf("max-src-conn-rate %u/%u", 973 r->max_src_conn_rate.limit, 974 r->max_src_conn_rate.seconds); 975 ropts = 0; 976 } 977 if (r->max_src_nodes) { 978 if (!ropts) 979 printf(", "); 980 printf("max-src-nodes %u", r->max_src_nodes); 981 ropts = 0; 982 } 983 if (r->overload_tblname[0]) { 984 if (!ropts) 985 printf(", "); 986 printf("overload <%s>", r->overload_tblname); 987 if (r->flush) 988 printf(" flush"); 989 if (r->flush & PF_FLUSH_GLOBAL) 990 printf(" global"); 991 } 992 if (r->rule_flag & PFRULE_IFBOUND) { 993 if (!ropts) 994 printf(", "); 995 printf("if-bound"); 996 ropts = 0; 997 } 998 if (r->rule_flag & PFRULE_STATESLOPPY) { 999 if (!ropts) 1000 printf(", "); 1001 printf("sloppy"); 1002 ropts = 0; 1003 } 1004 if (r->rule_flag & PFRULE_PFLOW) { 1005 if (!ropts) 1006 printf(", "); 1007 printf("pflow"); 1008 ropts = 0; 1009 } 1010 for (i = 0; i < PFTM_MAX; ++i) 1011 if (r->timeout[i]) { 1012 int j; 1013 1014 if (!ropts) 1015 printf(", "); 1016 ropts = 0; 1017 for (j = 0; pf_timeouts[j].name != NULL; 1018 ++j) 1019 if (pf_timeouts[j].timeout == i) 1020 break; 1021 printf("%s %u", pf_timeouts[j].name == NULL ? 1022 "inv.timeout" : pf_timeouts[j].name, 1023 r->timeout[i]); 1024 } 1025 printf(")"); 1026 } 1027 1028 if (r->rule_flag & PFRULE_FRAGMENT) 1029 printf(" fragment"); 1030 1031 if (r->scrub_flags & PFSTATE_SCRUBMASK || r->min_ttl || r->max_mss) { 1032 printf(" scrub ("); 1033 ropts = 1; 1034 if (r->scrub_flags & PFSTATE_NODF) { 1035 printf("no-df"); 1036 ropts = 0; 1037 } 1038 if (r->scrub_flags & PFSTATE_RANDOMID) { 1039 if (!ropts) 1040 printf(" "); 1041 printf("random-id"); 1042 ropts = 0; 1043 } 1044 if (r->min_ttl) { 1045 if (!ropts) 1046 printf(" "); 1047 printf("min-ttl %d", r->min_ttl); 1048 ropts = 0; 1049 } 1050 if (r->scrub_flags & PFSTATE_SCRUB_TCP) { 1051 if (!ropts) 1052 printf(" "); 1053 printf("reassemble tcp"); 1054 ropts = 0; 1055 } 1056 if (r->max_mss) { 1057 if (!ropts) 1058 printf(" "); 1059 printf("max-mss %d", r->max_mss); 1060 ropts = 0; 1061 } 1062 printf(")"); 1063 } 1064 1065 if (r->allow_opts) 1066 printf(" allow-opts"); 1067 if (r->label[0]) 1068 printf(" label \"%s\"", r->label); 1069 if (r->rule_flag & PFRULE_ONCE) 1070 printf(" once"); 1071 if (r->tagname[0]) 1072 printf(" tag %s", r->tagname); 1073 if (r->match_tagname[0]) { 1074 if (r->match_tag_not) 1075 printf(" !"); 1076 printf(" tagged %s", r->match_tagname); 1077 } 1078 if (r->rtableid != -1) 1079 printf(" rtable %u", r->rtableid); 1080 switch (r->divert.type) { 1081 case PF_DIVERT_NONE: 1082 break; 1083 case PF_DIVERT_TO: { 1084 /* XXX cut&paste from print_addr */ 1085 char buf[48]; 1086 1087 printf(" divert-to "); 1088 if (inet_ntop(r->af, &r->divert.addr, buf, sizeof(buf)) == NULL) 1089 printf("?"); 1090 else 1091 printf("%s", buf); 1092 printf(" port %u", ntohs(r->divert.port)); 1093 break; 1094 } 1095 case PF_DIVERT_REPLY: 1096 printf(" divert-reply"); 1097 break; 1098 case PF_DIVERT_PACKET: 1099 printf(" divert-packet port %u", ntohs(r->divert.port)); 1100 break; 1101 default: 1102 printf(" divert ???"); 1103 break; 1104 } 1105 1106 if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE && 1107 r->rule_flag & PFRULE_AFTO) { 1108 printf(" af-to %s from ", r->naf == AF_INET ? "inet" : "inet6"); 1109 print_pool(&r->nat, r->nat.proxy_port[0], 1110 r->nat.proxy_port[1], r->naf ? r->naf : r->af, 1111 PF_POOL_NAT, verbose); 1112 if (r->rdr.addr.type != PF_ADDR_NONE) { 1113 printf(" to "); 1114 print_pool(&r->rdr, r->rdr.proxy_port[0], 1115 r->rdr.proxy_port[1], r->naf ? r->naf : r->af, 1116 PF_POOL_RDR, verbose); 1117 } 1118 } else if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE) { 1119 printf (" nat-to "); 1120 print_pool(&r->nat, r->nat.proxy_port[0], 1121 r->nat.proxy_port[1], r->naf ? r->naf : r->af, 1122 PF_POOL_NAT, verbose); 1123 } else if (!anchor_call[0] && r->rdr.addr.type != PF_ADDR_NONE) { 1124 printf (" rdr-to "); 1125 print_pool(&r->rdr, r->rdr.proxy_port[0], 1126 r->rdr.proxy_port[1], r->af, PF_POOL_RDR, verbose); 1127 } 1128 if (r->rt) { 1129 if (r->rt == PF_ROUTETO) 1130 printf(" route-to"); 1131 else if (r->rt == PF_REPLYTO) 1132 printf(" reply-to"); 1133 else if (r->rt == PF_DUPTO) 1134 printf(" dup-to"); 1135 printf(" "); 1136 print_pool(&r->route, 0, 0, r->af, PF_POOL_ROUTE, verbose); 1137 } 1138 } 1139 1140 void 1141 print_tabledef(const char *name, int flags, int addrs, 1142 struct node_tinithead *nodes) 1143 { 1144 struct node_tinit *ti, *nti; 1145 struct node_host *h; 1146 1147 printf("table <%s>", name); 1148 if (flags & PFR_TFLAG_CONST) 1149 printf(" const"); 1150 if (flags & PFR_TFLAG_PERSIST) 1151 printf(" persist"); 1152 if (flags & PFR_TFLAG_COUNTERS) 1153 printf(" counters"); 1154 SIMPLEQ_FOREACH(ti, nodes, entries) { 1155 if (ti->file) { 1156 printf(" file \"%s\"", ti->file); 1157 continue; 1158 } 1159 printf(" {"); 1160 for (;;) { 1161 for (h = ti->host; h != NULL; h = h->next) { 1162 printf(h->not ? " !" : " "); 1163 print_addr(&h->addr, h->af, 0); 1164 if (h->ifname) 1165 printf("@%s", h->ifname); 1166 } 1167 nti = SIMPLEQ_NEXT(ti, entries); 1168 if (nti != NULL && nti->file == NULL) 1169 ti = nti; /* merge lists */ 1170 else 1171 break; 1172 } 1173 printf(" }"); 1174 } 1175 if (addrs && SIMPLEQ_EMPTY(nodes)) 1176 printf(" { }"); 1177 printf("\n"); 1178 } 1179 1180 void 1181 print_bwspec(const char *prefix, struct pf_queue_bwspec *bw) 1182 { 1183 u_int rate; 1184 int i; 1185 static const char unit[] = " KMG"; 1186 1187 if (bw->percent) 1188 printf("%s%u%%", prefix, bw->percent); 1189 else if (bw->absolute) { 1190 rate = bw->absolute; 1191 for (i = 0; rate >= 1000 && i <= 3 && (rate % 1000 == 0); i++) 1192 rate /= 1000; 1193 printf("%s%u%c", prefix, rate, unit[i]); 1194 } 1195 } 1196 1197 void 1198 print_scspec(const char *prefix, struct pf_queue_scspec *sc) 1199 { 1200 print_bwspec(prefix, &sc->m2); 1201 if (sc->d) { 1202 printf(" burst "); 1203 print_bwspec("", &sc->m1); 1204 printf(" for %ums", sc->d); 1205 } 1206 } 1207 1208 void 1209 print_queuespec(struct pf_queuespec *q) 1210 { 1211 printf("queue %s", q->qname); 1212 if (q->parent[0]) 1213 printf(" parent %s", q->parent); 1214 else if (q->ifname[0]) 1215 printf(" on %s", q->ifname); 1216 if (q->flags & PFQS_FLOWQUEUE) { 1217 printf(" flows %u", q->flowqueue.flows); 1218 if (q->flowqueue.quantum > 0) 1219 printf(" quantum %u", q->flowqueue.quantum); 1220 if (q->flowqueue.interval > 0) 1221 printf(" interval %ums", 1222 q->flowqueue.interval / 1000000); 1223 if (q->flowqueue.target > 0) 1224 printf(" target %ums", 1225 q->flowqueue.target / 1000000); 1226 } 1227 if (q->linkshare.m1.absolute || q->linkshare.m2.absolute) { 1228 print_scspec(" bandwidth ", &q->linkshare); 1229 print_scspec(", min ", &q->realtime); 1230 print_scspec(", max ", &q->upperlimit); 1231 } 1232 if (q->flags & PFQS_DEFAULT) 1233 printf(" default"); 1234 if (q->qlimit) 1235 printf(" qlimit %u", q->qlimit); 1236 printf("\n"); 1237 } 1238 1239 int 1240 parse_flags(char *s) 1241 { 1242 char *p, *q; 1243 u_int8_t f = 0; 1244 1245 for (p = s; *p; p++) { 1246 if ((q = strchr(tcpflags, *p)) == NULL) 1247 return -1; 1248 else 1249 f |= 1 << (q - tcpflags); 1250 } 1251 return (f ? f : PF_TH_ALL); 1252 } 1253 1254 void 1255 set_ipmask(struct node_host *h, u_int8_t b) 1256 { 1257 struct pf_addr *m, *n; 1258 int i, j = 0; 1259 1260 m = &h->addr.v.a.mask; 1261 memset(m, 0, sizeof(*m)); 1262 1263 while (b >= 32) { 1264 m->addr32[j++] = 0xffffffff; 1265 b -= 32; 1266 } 1267 for (i = 31; i > 31-b; --i) 1268 m->addr32[j] |= (1 << i); 1269 if (b) 1270 m->addr32[j] = htonl(m->addr32[j]); 1271 1272 /* Mask off bits of the address that will never be used. */ 1273 n = &h->addr.v.a.addr; 1274 if (h->addr.type == PF_ADDR_ADDRMASK) 1275 for (i = 0; i < 4; i++) 1276 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1277 } 1278 1279 int 1280 check_netmask(struct node_host *h, sa_family_t af) 1281 { 1282 struct node_host *n = NULL; 1283 struct pf_addr *m; 1284 1285 for (n = h; n != NULL; n = n->next) { 1286 if (h->addr.type == PF_ADDR_TABLE) 1287 continue; 1288 m = &h->addr.v.a.mask; 1289 /* netmasks > 32 bit are invalid on v4 */ 1290 if (af == AF_INET && 1291 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1292 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1293 unmask(m, AF_INET6)); 1294 return (1); 1295 } 1296 } 1297 return (0); 1298 } 1299 1300 struct node_host * 1301 gen_dynnode(struct node_host *h, sa_family_t af) 1302 { 1303 struct node_host *n; 1304 struct pf_addr *m; 1305 1306 if (h->addr.type != PF_ADDR_DYNIFTL) 1307 return (NULL); 1308 1309 if ((n = calloc(1, sizeof(*n))) == NULL) 1310 return (NULL); 1311 bcopy(h, n, sizeof(*n)); 1312 n->ifname = NULL; 1313 n->next = NULL; 1314 n->tail = NULL; 1315 1316 /* fix up netmask */ 1317 m = &n->addr.v.a.mask; 1318 if (af == AF_INET && unmask(m, AF_INET6) > 32) 1319 set_ipmask(n, 32); 1320 1321 return (n); 1322 } 1323 1324 /* interface lookup routines */ 1325 1326 struct node_host *iftab; 1327 1328 void 1329 ifa_load(void) 1330 { 1331 struct ifaddrs *ifap, *ifa; 1332 struct node_host *n = NULL, *h = NULL; 1333 1334 if (getifaddrs(&ifap) < 0) 1335 err(1, "getifaddrs"); 1336 1337 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1338 if (!(ifa->ifa_addr->sa_family == AF_INET || 1339 ifa->ifa_addr->sa_family == AF_INET6 || 1340 ifa->ifa_addr->sa_family == AF_LINK)) 1341 continue; 1342 n = calloc(1, sizeof(struct node_host)); 1343 if (n == NULL) 1344 err(1, "address: calloc"); 1345 n->af = ifa->ifa_addr->sa_family; 1346 n->ifa_flags = ifa->ifa_flags; 1347 #ifdef __KAME__ 1348 if (n->af == AF_INET6 && 1349 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1350 ifa->ifa_addr)->sin6_addr) && 1351 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1352 0) { 1353 struct sockaddr_in6 *sin6; 1354 1355 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1356 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1357 sin6->sin6_addr.s6_addr[3]; 1358 sin6->sin6_addr.s6_addr[2] = 0; 1359 sin6->sin6_addr.s6_addr[3] = 0; 1360 } 1361 #endif 1362 n->ifindex = 0; 1363 if (n->af == AF_INET) { 1364 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *) 1365 ifa->ifa_addr)->sin_addr.s_addr, 1366 sizeof(struct in_addr)); 1367 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *) 1368 ifa->ifa_netmask)->sin_addr.s_addr, 1369 sizeof(struct in_addr)); 1370 if (ifa->ifa_broadaddr != NULL) 1371 memcpy(&n->bcast, &((struct sockaddr_in *) 1372 ifa->ifa_broadaddr)->sin_addr.s_addr, 1373 sizeof(struct in_addr)); 1374 if (ifa->ifa_dstaddr != NULL) 1375 memcpy(&n->peer, &((struct sockaddr_in *) 1376 ifa->ifa_dstaddr)->sin_addr.s_addr, 1377 sizeof(struct in_addr)); 1378 } else if (n->af == AF_INET6) { 1379 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *) 1380 ifa->ifa_addr)->sin6_addr.s6_addr, 1381 sizeof(struct in6_addr)); 1382 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *) 1383 ifa->ifa_netmask)->sin6_addr.s6_addr, 1384 sizeof(struct in6_addr)); 1385 if (ifa->ifa_broadaddr != NULL) 1386 memcpy(&n->bcast, &((struct sockaddr_in6 *) 1387 ifa->ifa_broadaddr)->sin6_addr.s6_addr, 1388 sizeof(struct in6_addr)); 1389 if (ifa->ifa_dstaddr != NULL) 1390 memcpy(&n->peer, &((struct sockaddr_in6 *) 1391 ifa->ifa_dstaddr)->sin6_addr.s6_addr, 1392 sizeof(struct in6_addr)); 1393 n->ifindex = ((struct sockaddr_in6 *) 1394 ifa->ifa_addr)->sin6_scope_id; 1395 } else if (n->af == AF_LINK) { 1396 n->ifindex = ((struct sockaddr_dl *) 1397 ifa->ifa_addr)->sdl_index; 1398 } 1399 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1400 err(1, "ifa_load: strdup"); 1401 n->next = NULL; 1402 n->tail = n; 1403 if (h == NULL) 1404 h = n; 1405 else { 1406 h->tail->next = n; 1407 h->tail = n; 1408 } 1409 } 1410 1411 iftab = h; 1412 freeifaddrs(ifap); 1413 } 1414 1415 unsigned int 1416 ifa_nametoindex(const char *ifa_name) 1417 { 1418 struct node_host *p; 1419 1420 for (p = iftab; p; p = p->next) { 1421 if (p->af == AF_LINK && strcmp(p->ifname, ifa_name) == 0) 1422 return (p->ifindex); 1423 } 1424 errno = ENXIO; 1425 return (0); 1426 } 1427 1428 char * 1429 ifa_indextoname(unsigned int ifindex, char *ifa_name) 1430 { 1431 struct node_host *p; 1432 1433 for (p = iftab; p; p = p->next) { 1434 if (p->af == AF_LINK && ifindex == p->ifindex) { 1435 strlcpy(ifa_name, p->ifname, IFNAMSIZ); 1436 return (ifa_name); 1437 } 1438 } 1439 errno = ENXIO; 1440 return (NULL); 1441 } 1442 1443 struct node_host * 1444 ifa_exists(const char *ifa_name) 1445 { 1446 struct node_host *n; 1447 struct ifgroupreq ifgr; 1448 int s; 1449 1450 if (iftab == NULL) 1451 ifa_load(); 1452 1453 /* check whether this is a group */ 1454 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 1455 err(1, "socket"); 1456 bzero(&ifgr, sizeof(ifgr)); 1457 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1458 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == 0) { 1459 /* fake a node_host */ 1460 if ((n = calloc(1, sizeof(*n))) == NULL) 1461 err(1, "calloc"); 1462 if ((n->ifname = strdup(ifa_name)) == NULL) 1463 err(1, "strdup"); 1464 close(s); 1465 return (n); 1466 } 1467 close(s); 1468 1469 for (n = iftab; n; n = n->next) { 1470 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1471 return (n); 1472 } 1473 1474 return (NULL); 1475 } 1476 1477 struct node_host * 1478 ifa_grouplookup(const char *ifa_name, int flags) 1479 { 1480 struct ifg_req *ifg; 1481 struct ifgroupreq ifgr; 1482 int s, len; 1483 struct node_host *n, *h = NULL; 1484 1485 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 1486 err(1, "socket"); 1487 bzero(&ifgr, sizeof(ifgr)); 1488 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1489 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) { 1490 close(s); 1491 return (NULL); 1492 } 1493 1494 len = ifgr.ifgr_len; 1495 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1496 err(1, "calloc"); 1497 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1498 err(1, "SIOCGIFGMEMB"); 1499 1500 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1501 ifg++) { 1502 len -= sizeof(struct ifg_req); 1503 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1504 continue; 1505 if (h == NULL) 1506 h = n; 1507 else { 1508 h->tail->next = n; 1509 h->tail = n->tail; 1510 } 1511 } 1512 free(ifgr.ifgr_groups); 1513 close(s); 1514 1515 return (h); 1516 } 1517 1518 struct node_host * 1519 ifa_lookup(const char *ifa_name, int flags) 1520 { 1521 struct node_host *p = NULL, *h = NULL, *n = NULL; 1522 int got4 = 0, got6 = 0; 1523 const char *last_if = NULL; 1524 1525 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1526 return (h); 1527 1528 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1529 ifa_name = NULL; 1530 1531 if (iftab == NULL) 1532 ifa_load(); 1533 1534 for (p = iftab; p; p = p->next) { 1535 if (ifa_skip_if(ifa_name, p)) 1536 continue; 1537 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1538 continue; 1539 if ((flags & PFI_AFLAG_BROADCAST) && 1540 !(p->ifa_flags & IFF_BROADCAST)) 1541 continue; 1542 if ((flags & PFI_AFLAG_BROADCAST) && p->bcast.v4.s_addr == 0) 1543 continue; 1544 if ((flags & PFI_AFLAG_PEER) && 1545 !(p->ifa_flags & IFF_POINTOPOINT)) 1546 continue; 1547 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1548 continue; 1549 if (last_if == NULL || strcmp(last_if, p->ifname)) 1550 got4 = got6 = 0; 1551 last_if = p->ifname; 1552 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1553 continue; 1554 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1555 continue; 1556 if (p->af == AF_INET) 1557 got4 = 1; 1558 else 1559 got6 = 1; 1560 n = calloc(1, sizeof(struct node_host)); 1561 if (n == NULL) 1562 err(1, "address: calloc"); 1563 n->af = p->af; 1564 if (flags & PFI_AFLAG_BROADCAST) 1565 memcpy(&n->addr.v.a.addr, &p->bcast, 1566 sizeof(struct pf_addr)); 1567 else if (flags & PFI_AFLAG_PEER) 1568 memcpy(&n->addr.v.a.addr, &p->peer, 1569 sizeof(struct pf_addr)); 1570 else 1571 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1572 sizeof(struct pf_addr)); 1573 if (flags & PFI_AFLAG_NETWORK) 1574 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af)); 1575 else { 1576 if (n->af == AF_INET) { 1577 if (p->ifa_flags & IFF_LOOPBACK && 1578 p->ifa_flags & IFF_LINK1) 1579 memcpy(&n->addr.v.a.mask, 1580 &p->addr.v.a.mask, 1581 sizeof(struct pf_addr)); 1582 else 1583 set_ipmask(n, 32); 1584 } else 1585 set_ipmask(n, 128); 1586 } 1587 n->ifindex = p->ifindex; 1588 1589 n->next = NULL; 1590 n->tail = n; 1591 if (h == NULL) 1592 h = n; 1593 else { 1594 h->tail->next = n; 1595 h->tail = n; 1596 } 1597 } 1598 return (h); 1599 } 1600 1601 int 1602 ifa_skip_if(const char *filter, struct node_host *p) 1603 { 1604 int n; 1605 1606 if (p->af != AF_INET && p->af != AF_INET6) 1607 return (1); 1608 if (filter == NULL || !*filter) 1609 return (0); 1610 if (!strcmp(p->ifname, filter)) 1611 return (0); /* exact match */ 1612 n = strlen(filter); 1613 if (n < 1 || n >= IFNAMSIZ) 1614 return (1); /* sanity check */ 1615 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1616 return (1); /* only do exact match in that case */ 1617 if (strncmp(p->ifname, filter, n)) 1618 return (1); /* prefix doesn't match */ 1619 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1620 } 1621 1622 struct node_host * 1623 host(const char *s, int opts) 1624 { 1625 struct node_host *h = NULL, *n; 1626 int mask = -1, v4mask = 32, v6mask = 128, cont = 1; 1627 char *p, *q, *r, *ps, *if_name; 1628 1629 if ((ps = strdup(s)) == NULL) 1630 err(1, "host: strdup"); 1631 1632 if ((if_name = strrchr(ps, '@')) != NULL) { 1633 if_name[0] = '\0'; 1634 if_name++; 1635 } 1636 1637 if ((p = strrchr(ps, '/')) != NULL) { 1638 if ((r = strdup(ps)) == NULL) 1639 err(1, "host: strdup"); 1640 mask = strtol(p+1, &q, 0); 1641 if (!q || *q || mask > 128 || q == (p+1)) { 1642 fprintf(stderr, "invalid netmask '%s'\n", p); 1643 free(r); 1644 free(ps); 1645 return (NULL); 1646 } 1647 p[0] = '\0'; 1648 v4mask = v6mask = mask; 1649 } else 1650 r = ps; 1651 1652 /* interface with this name exists? */ 1653 if (cont && (h = host_if(ps, mask)) != NULL) 1654 cont = 0; 1655 1656 /* IPv4 address? */ 1657 if (cont && (h = host_v4(r, mask)) != NULL) 1658 cont = 0; 1659 if (r != ps) 1660 free(r); 1661 1662 /* IPv6 address? */ 1663 if (cont && (h = host_v6(ps, v6mask)) != NULL) 1664 cont = 0; 1665 1666 /* dns lookup */ 1667 if (cont && (h = host_dns(ps, v4mask, v6mask, 1668 (opts & PF_OPT_NODNS))) != NULL) 1669 cont = 0; 1670 1671 if (if_name && if_name[0]) 1672 for (n = h; n != NULL; n = n->next) 1673 if ((n->ifname = strdup(if_name)) == NULL) 1674 err(1, "host: strdup"); 1675 1676 free(ps); /* after we copy the name out */ 1677 if (h == NULL || cont == 1) { 1678 fprintf(stderr, "no IP address found for %s\n", s); 1679 return (NULL); 1680 } 1681 for (n = h; n != NULL; n = n->next) { 1682 n->addr.type = PF_ADDR_ADDRMASK; 1683 n->weight = 0; 1684 } 1685 return (h); 1686 } 1687 1688 struct node_host * 1689 host_if(const char *s, int mask) 1690 { 1691 struct node_host *n, *h = NULL; 1692 char *p, *ps; 1693 int flags = 0; 1694 1695 if ((ps = strdup(s)) == NULL) 1696 err(1, "host_if: strdup"); 1697 while ((p = strrchr(ps, ':')) != NULL) { 1698 if (!strcmp(p+1, "network")) 1699 flags |= PFI_AFLAG_NETWORK; 1700 else if (!strcmp(p+1, "broadcast")) 1701 flags |= PFI_AFLAG_BROADCAST; 1702 else if (!strcmp(p+1, "peer")) 1703 flags |= PFI_AFLAG_PEER; 1704 else if (!strcmp(p+1, "0")) 1705 flags |= PFI_AFLAG_NOALIAS; 1706 else { 1707 free(ps); 1708 return (NULL); 1709 } 1710 *p = '\0'; 1711 } 1712 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1713 fprintf(stderr, "illegal combination of interface modifiers\n"); 1714 free(ps); 1715 return (NULL); 1716 } 1717 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1718 fprintf(stderr, "network or broadcast lookup, but " 1719 "extra netmask given\n"); 1720 free(ps); 1721 return (NULL); 1722 } 1723 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1724 /* interface with this name exists */ 1725 h = ifa_lookup(ps, flags); 1726 for (n = h; n != NULL && mask > -1; n = n->next) 1727 set_ipmask(n, mask); 1728 } 1729 1730 free(ps); 1731 return (h); 1732 } 1733 1734 struct node_host * 1735 host_v4(const char *s, int mask) 1736 { 1737 struct node_host *h = NULL; 1738 struct in_addr ina; 1739 int bits = 32; 1740 1741 memset(&ina, 0, sizeof(struct in_addr)); 1742 if (strrchr(s, '/') != NULL) { 1743 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1) 1744 return (NULL); 1745 } else { 1746 if (inet_pton(AF_INET, s, &ina) != 1) 1747 return (NULL); 1748 } 1749 1750 h = calloc(1, sizeof(struct node_host)); 1751 if (h == NULL) 1752 err(1, "address: calloc"); 1753 h->ifname = NULL; 1754 h->af = AF_INET; 1755 h->addr.v.a.addr.addr32[0] = ina.s_addr; 1756 set_ipmask(h, bits); 1757 h->next = NULL; 1758 h->tail = h; 1759 1760 return (h); 1761 } 1762 1763 struct node_host * 1764 host_v6(const char *s, int mask) 1765 { 1766 struct addrinfo hints, *res; 1767 struct node_host *h = NULL; 1768 1769 memset(&hints, 0, sizeof(hints)); 1770 hints.ai_family = AF_INET6; 1771 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1772 hints.ai_flags = AI_NUMERICHOST; 1773 if (getaddrinfo(s, "0", &hints, &res) == 0) { 1774 h = calloc(1, sizeof(struct node_host)); 1775 if (h == NULL) 1776 err(1, "address: calloc"); 1777 h->ifname = NULL; 1778 h->af = AF_INET6; 1779 memcpy(&h->addr.v.a.addr, 1780 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 1781 sizeof(h->addr.v.a.addr)); 1782 h->ifindex = 1783 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1784 set_ipmask(h, mask); 1785 freeaddrinfo(res); 1786 h->next = NULL; 1787 h->tail = h; 1788 } 1789 1790 return (h); 1791 } 1792 1793 struct node_host * 1794 host_dns(const char *s, int v4mask, int v6mask, int numeric) 1795 { 1796 struct addrinfo hints, *res0, *res; 1797 struct node_host *n, *h = NULL; 1798 int error, noalias = 0; 1799 int got4 = 0, got6 = 0; 1800 char *p, *ps; 1801 1802 if ((ps = strdup(s)) == NULL) 1803 err(1, "host_dns: strdup"); 1804 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1805 noalias = 1; 1806 *p = '\0'; 1807 } 1808 memset(&hints, 0, sizeof(hints)); 1809 hints.ai_family = PF_UNSPEC; 1810 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1811 if (numeric) 1812 hints.ai_flags = AI_NUMERICHOST; 1813 error = getaddrinfo(ps, NULL, &hints, &res0); 1814 if (error) { 1815 free(ps); 1816 return (h); 1817 } 1818 1819 for (res = res0; res; res = res->ai_next) { 1820 if (res->ai_family != AF_INET && 1821 res->ai_family != AF_INET6) 1822 continue; 1823 if (noalias) { 1824 if (res->ai_family == AF_INET) { 1825 if (got4) 1826 continue; 1827 got4 = 1; 1828 } else { 1829 if (got6) 1830 continue; 1831 got6 = 1; 1832 } 1833 } 1834 n = calloc(1, sizeof(struct node_host)); 1835 if (n == NULL) 1836 err(1, "host_dns: calloc"); 1837 n->ifname = NULL; 1838 n->af = res->ai_family; 1839 if (res->ai_family == AF_INET) { 1840 memcpy(&n->addr.v.a.addr, 1841 &((struct sockaddr_in *) 1842 res->ai_addr)->sin_addr.s_addr, 1843 sizeof(struct in_addr)); 1844 set_ipmask(n, v4mask); 1845 } else { 1846 memcpy(&n->addr.v.a.addr, 1847 &((struct sockaddr_in6 *) 1848 res->ai_addr)->sin6_addr.s6_addr, 1849 sizeof(struct in6_addr)); 1850 n->ifindex = 1851 ((struct sockaddr_in6 *) 1852 res->ai_addr)->sin6_scope_id; 1853 set_ipmask(n, v6mask); 1854 } 1855 n->next = NULL; 1856 n->tail = n; 1857 if (h == NULL) 1858 h = n; 1859 else { 1860 h->tail->next = n; 1861 h->tail = n; 1862 } 1863 } 1864 freeaddrinfo(res0); 1865 free(ps); 1866 1867 return (h); 1868 } 1869 1870 /* 1871 * convert a hostname to a list of addresses and put them in the given buffer. 1872 * test: 1873 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1874 */ 1875 int 1876 append_addr(struct pfr_buffer *b, char *s, int test, int opts) 1877 { 1878 static int previous = 0; 1879 static int expect = 0; 1880 struct pfr_addr *a; 1881 struct node_host *h, *n; 1882 char *r; 1883 const char *errstr; 1884 int rv, not = 0, i = 0; 1885 u_int16_t weight; 1886 1887 /* skip weight if given */ 1888 if (strcmp(s, "weight") == 0) { 1889 expect = 1; 1890 return (1); /* expecting further call */ 1891 } 1892 1893 /* check if previous host is set */ 1894 if (expect) { 1895 /* parse and append load balancing weight */ 1896 weight = strtonum(s, 1, USHRT_MAX, &errstr); 1897 if (errstr) { 1898 fprintf(stderr, "failed to convert weight %s\n", s); 1899 return (-1); 1900 } 1901 if (previous != -1) { 1902 PFRB_FOREACH(a, b) { 1903 if (++i >= previous) { 1904 a->pfra_weight = weight; 1905 a->pfra_type = PFRKE_COST; 1906 } 1907 } 1908 } 1909 1910 expect = 0; 1911 return (0); 1912 } 1913 1914 for (r = s; *r == '!'; r++) 1915 not = !not; 1916 if ((n = host(r, opts)) == NULL) { 1917 errno = 0; 1918 return (-1); 1919 } 1920 rv = append_addr_host(b, n, test, not); 1921 previous = b->pfrb_size; 1922 do { 1923 h = n; 1924 n = n->next; 1925 free(h); 1926 } while (n != NULL); 1927 return (rv); 1928 } 1929 1930 /* 1931 * same as previous function, but with a pre-parsed input and the ability 1932 * to "negate" the result. Does not free the node_host list. 1933 * not: 1934 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1935 */ 1936 int 1937 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1938 { 1939 int bits; 1940 struct pfr_addr addr; 1941 1942 do { 1943 bzero(&addr, sizeof(addr)); 1944 addr.pfra_not = n->not ^ not; 1945 addr.pfra_af = n->af; 1946 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af); 1947 if (n->ifname) { 1948 if (strlcpy(addr.pfra_ifname, n->ifname, 1949 sizeof(addr.pfra_ifname)) >= sizeof(addr.pfra_ifname)) 1950 errx(1, "append_addr_host: strlcpy"); 1951 addr.pfra_type = PFRKE_ROUTE; 1952 } 1953 if (n->weight > 0) { 1954 addr.pfra_weight = n->weight; 1955 addr.pfra_type = PFRKE_COST; 1956 } 1957 switch (n->af) { 1958 case AF_INET: 1959 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 1960 bits = 32; 1961 break; 1962 case AF_INET6: 1963 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 1964 sizeof(struct in6_addr)); 1965 bits = 128; 1966 break; 1967 default: 1968 errno = EINVAL; 1969 return (-1); 1970 } 1971 if ((test && (not || addr.pfra_net != bits)) || 1972 addr.pfra_net > bits) { 1973 errno = EINVAL; 1974 return (-1); 1975 } 1976 if (pfr_buf_add(b, &addr)) 1977 return (-1); 1978 } while ((n = n->next) != NULL); 1979 1980 return (0); 1981 } 1982 1983 int 1984 pfctl_add_trans(struct pfr_buffer *buf, int type, const char *anchor) 1985 { 1986 struct pfioc_trans_e trans; 1987 1988 bzero(&trans, sizeof(trans)); 1989 trans.type = type; 1990 if (strlcpy(trans.anchor, anchor, 1991 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 1992 errx(1, "pfctl_add_trans: strlcpy"); 1993 1994 return pfr_buf_add(buf, &trans); 1995 } 1996 1997 u_int32_t 1998 pfctl_get_ticket(struct pfr_buffer *buf, int type, const char *anchor) 1999 { 2000 struct pfioc_trans_e *p; 2001 2002 PFRB_FOREACH(p, buf) 2003 if (type == p->type && !strcmp(anchor, p->anchor)) 2004 return (p->ticket); 2005 errx(1, "pfctl_get_ticket: assertion failed"); 2006 } 2007 2008 int 2009 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 2010 { 2011 struct pfioc_trans trans; 2012 2013 bzero(&trans, sizeof(trans)); 2014 trans.size = buf->pfrb_size - from; 2015 trans.esize = sizeof(struct pfioc_trans_e); 2016 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 2017 return ioctl(dev, cmd, &trans); 2018 } 2019