1 /* $OpenBSD: pfctl_parser.c,v 1.338 2018/09/16 19:36:33 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 copy_satopfaddr(struct pf_addr *, struct sockaddr *); 66 void print_op (u_int8_t, const char *, const char *); 67 void print_port (u_int8_t, u_int16_t, u_int16_t, const char *, int); 68 void print_ugid (u_int8_t, unsigned, unsigned, const char *, unsigned); 69 void print_flags (u_int8_t); 70 void print_fromto(struct pf_rule_addr *, pf_osfp_t, 71 struct pf_rule_addr *, u_int8_t, u_int8_t, int); 72 void print_bwspec(const char *index, struct pf_queue_bwspec *); 73 void print_scspec(const char *, struct pf_queue_scspec *); 74 int ifa_skip_if(const char *filter, struct node_host *p); 75 76 struct node_host *ifa_grouplookup(const char *, int); 77 struct node_host *host_if(const char *, int); 78 struct node_host *host_ip(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 { "listenrepv2", MLDV2_LISTENER_REPORT }, 139 }; 140 141 static const struct icmpcodeent icmp_code[] = { 142 { "net-unr", ICMP_UNREACH, ICMP_UNREACH_NET }, 143 { "host-unr", ICMP_UNREACH, ICMP_UNREACH_HOST }, 144 { "proto-unr", ICMP_UNREACH, ICMP_UNREACH_PROTOCOL }, 145 { "port-unr", ICMP_UNREACH, ICMP_UNREACH_PORT }, 146 { "needfrag", ICMP_UNREACH, ICMP_UNREACH_NEEDFRAG }, 147 { "srcfail", ICMP_UNREACH, ICMP_UNREACH_SRCFAIL }, 148 { "net-unk", ICMP_UNREACH, ICMP_UNREACH_NET_UNKNOWN }, 149 { "host-unk", ICMP_UNREACH, ICMP_UNREACH_HOST_UNKNOWN }, 150 { "isolate", ICMP_UNREACH, ICMP_UNREACH_ISOLATED }, 151 { "net-prohib", ICMP_UNREACH, ICMP_UNREACH_NET_PROHIB }, 152 { "host-prohib", ICMP_UNREACH, ICMP_UNREACH_HOST_PROHIB }, 153 { "net-tos", ICMP_UNREACH, ICMP_UNREACH_TOSNET }, 154 { "host-tos", ICMP_UNREACH, ICMP_UNREACH_TOSHOST }, 155 { "filter-prohib", ICMP_UNREACH, ICMP_UNREACH_FILTER_PROHIB }, 156 { "host-preced", ICMP_UNREACH, ICMP_UNREACH_HOST_PRECEDENCE }, 157 { "cutoff-preced", ICMP_UNREACH, ICMP_UNREACH_PRECEDENCE_CUTOFF }, 158 { "redir-net", ICMP_REDIRECT, ICMP_REDIRECT_NET }, 159 { "redir-host", ICMP_REDIRECT, ICMP_REDIRECT_HOST }, 160 { "redir-tos-net", ICMP_REDIRECT, ICMP_REDIRECT_TOSNET }, 161 { "redir-tos-host", ICMP_REDIRECT, ICMP_REDIRECT_TOSHOST }, 162 { "normal-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NORMAL }, 163 { "common-adv", ICMP_ROUTERADVERT, ICMP_ROUTERADVERT_NOROUTE_COMMON }, 164 { "transit", ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS }, 165 { "reassemb", ICMP_TIMXCEED, ICMP_TIMXCEED_REASS }, 166 { "badhead", ICMP_PARAMPROB, ICMP_PARAMPROB_ERRATPTR }, 167 { "optmiss", ICMP_PARAMPROB, ICMP_PARAMPROB_OPTABSENT }, 168 { "badlen", ICMP_PARAMPROB, ICMP_PARAMPROB_LENGTH }, 169 { "unknown-ind", ICMP_PHOTURIS, ICMP_PHOTURIS_UNKNOWN_INDEX }, 170 { "auth-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_AUTH_FAILED }, 171 { "decrypt-fail", ICMP_PHOTURIS, ICMP_PHOTURIS_DECRYPT_FAILED } 172 }; 173 174 static const struct icmpcodeent icmp6_code[] = { 175 { "admin-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN }, 176 { "noroute-unr", ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOROUTE }, 177 { "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 void 215 copy_satopfaddr(struct pf_addr *pfa, struct sockaddr *sa) 216 { 217 if (sa->sa_family == AF_INET6) 218 pfa->v6 = ((struct sockaddr_in6 *)sa)->sin6_addr; 219 else if (sa->sa_family == AF_INET) 220 pfa->v4 = ((struct sockaddr_in *)sa)->sin_addr; 221 else 222 warnx("unhandled af %d", sa->sa_family); 223 } 224 225 const struct icmptypeent * 226 geticmptypebynumber(u_int8_t type, sa_family_t af) 227 { 228 unsigned int i; 229 230 if (af != AF_INET6) { 231 for (i=0; i < (sizeof (icmp_type) / sizeof(icmp_type[0])); 232 i++) { 233 if (type == icmp_type[i].type) 234 return (&icmp_type[i]); 235 } 236 } else { 237 for (i=0; i < (sizeof (icmp6_type) / 238 sizeof(icmp6_type[0])); i++) { 239 if (type == icmp6_type[i].type) 240 return (&icmp6_type[i]); 241 } 242 } 243 return (NULL); 244 } 245 246 const struct icmptypeent * 247 geticmptypebyname(char *w, sa_family_t af) 248 { 249 unsigned int i; 250 251 if (af != AF_INET6) { 252 for (i=0; i < (sizeof (icmp_type) / sizeof(icmp_type[0])); 253 i++) { 254 if (!strcmp(w, icmp_type[i].name)) 255 return (&icmp_type[i]); 256 } 257 } else { 258 for (i=0; i < (sizeof (icmp6_type) / 259 sizeof(icmp6_type[0])); i++) { 260 if (!strcmp(w, icmp6_type[i].name)) 261 return (&icmp6_type[i]); 262 } 263 } 264 return (NULL); 265 } 266 267 const struct icmpcodeent * 268 geticmpcodebynumber(u_int8_t type, u_int8_t code, sa_family_t af) 269 { 270 unsigned int i; 271 272 if (af != AF_INET6) { 273 for (i=0; i < (sizeof (icmp_code) / sizeof(icmp_code[0])); 274 i++) { 275 if (type == icmp_code[i].type && 276 code == icmp_code[i].code) 277 return (&icmp_code[i]); 278 } 279 } else { 280 for (i=0; i < (sizeof (icmp6_code) / 281 sizeof(icmp6_code[0])); i++) { 282 if (type == icmp6_code[i].type && 283 code == icmp6_code[i].code) 284 return (&icmp6_code[i]); 285 } 286 } 287 return (NULL); 288 } 289 290 const struct icmpcodeent * 291 geticmpcodebyname(u_long type, char *w, sa_family_t af) 292 { 293 unsigned int i; 294 295 if (af != AF_INET6) { 296 for (i=0; i < (sizeof (icmp_code) / sizeof(icmp_code[0])); 297 i++) { 298 if (type == icmp_code[i].type && 299 !strcmp(w, icmp_code[i].name)) 300 return (&icmp_code[i]); 301 } 302 } else { 303 for (i=0; i < (sizeof (icmp6_code) / 304 sizeof(icmp6_code[0])); i++) { 305 if (type == icmp6_code[i].type && 306 !strcmp(w, icmp6_code[i].name)) 307 return (&icmp6_code[i]); 308 } 309 } 310 return (NULL); 311 } 312 313 /* 314 * Decode a symbolic name to a numeric value. 315 * From syslogd. 316 */ 317 int 318 string_to_loglevel(const char *name) 319 { 320 CODE *c; 321 char *p, buf[40]; 322 323 if (isdigit((unsigned char)*name)) { 324 const char *errstr; 325 int val; 326 327 val = strtonum(name, 0, LOG_DEBUG, &errstr); 328 if (errstr) 329 return -1; 330 return val; 331 } 332 333 for (p = buf; *name && p < &buf[sizeof(buf) - 1]; p++, name++) { 334 if (isupper((unsigned char)*name)) 335 *p = tolower((unsigned char)*name); 336 else 337 *p = *name; 338 } 339 *p = '\0'; 340 for (c = prioritynames; c->c_name; c++) 341 if (!strcmp(buf, c->c_name) && c->c_val != INTERNAL_NOPRI) 342 return (c->c_val); 343 344 return (-1); 345 } 346 347 const char * 348 loglevel_to_string(int level) 349 { 350 CODE *c; 351 352 for (c = prioritynames; c->c_name; c++) 353 if (c->c_val == level) 354 return (c->c_name); 355 356 return ("unknown"); 357 } 358 359 void 360 print_op(u_int8_t op, const char *a1, const char *a2) 361 { 362 if (op == PF_OP_IRG) 363 printf(" %s >< %s", a1, a2); 364 else if (op == PF_OP_XRG) 365 printf(" %s <> %s", a1, a2); 366 else if (op == PF_OP_EQ) 367 printf(" = %s", a1); 368 else if (op == PF_OP_NE) 369 printf(" != %s", a1); 370 else if (op == PF_OP_LT) 371 printf(" < %s", a1); 372 else if (op == PF_OP_LE) 373 printf(" <= %s", a1); 374 else if (op == PF_OP_GT) 375 printf(" > %s", a1); 376 else if (op == PF_OP_GE) 377 printf(" >= %s", a1); 378 else if (op == PF_OP_RRG) 379 printf(" %s:%s", a1, a2); 380 } 381 382 void 383 print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int opts) 384 { 385 char a1[6], a2[6]; 386 struct servent *s = NULL; 387 388 if (opts & PF_OPT_PORTNAMES) 389 s = getservbyport(p1, proto); 390 p1 = ntohs(p1); 391 p2 = ntohs(p2); 392 snprintf(a1, sizeof(a1), "%u", p1); 393 snprintf(a2, sizeof(a2), "%u", p2); 394 printf(" port"); 395 if (s != NULL && (op == PF_OP_EQ || op == PF_OP_NE)) 396 print_op(op, s->s_name, a2); 397 else 398 print_op(op, a1, a2); 399 } 400 401 void 402 print_ugid(u_int8_t op, unsigned u1, unsigned u2, const char *t, unsigned umax) 403 { 404 char a1[11], a2[11]; 405 406 snprintf(a1, sizeof(a1), "%u", u1); 407 snprintf(a2, sizeof(a2), "%u", u2); 408 printf(" %s", t); 409 if (u1 == umax && (op == PF_OP_EQ || op == PF_OP_NE)) 410 print_op(op, "unknown", a2); 411 else 412 print_op(op, a1, a2); 413 } 414 415 void 416 print_flags(u_int8_t f) 417 { 418 int i; 419 420 for (i = 0; tcpflags[i]; ++i) 421 if (f & (1 << i)) 422 printf("%c", tcpflags[i]); 423 } 424 425 void 426 print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst, 427 sa_family_t af, u_int8_t proto, int opts) 428 { 429 char buf[PF_OSFP_LEN*3]; 430 int verbose = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 431 if (src->addr.type == PF_ADDR_ADDRMASK && 432 dst->addr.type == PF_ADDR_ADDRMASK && 433 PF_AZERO(&src->addr.v.a.addr, AF_INET6) && 434 PF_AZERO(&src->addr.v.a.mask, AF_INET6) && 435 PF_AZERO(&dst->addr.v.a.addr, AF_INET6) && 436 PF_AZERO(&dst->addr.v.a.mask, AF_INET6) && 437 !src->neg && !dst->neg && 438 !src->port_op && !dst->port_op && 439 osfp == PF_OSFP_ANY) 440 printf(" all"); 441 else { 442 printf(" from "); 443 if (src->neg) 444 printf("! "); 445 print_addr(&src->addr, af, verbose); 446 if (src->port_op) 447 print_port(src->port_op, src->port[0], 448 src->port[1], 449 proto == IPPROTO_TCP ? "tcp" : "udp", opts); 450 if (osfp != PF_OSFP_ANY) 451 printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf, 452 sizeof(buf))); 453 454 printf(" to "); 455 if (dst->neg) 456 printf("! "); 457 print_addr(&dst->addr, af, verbose); 458 if (dst->port_op) 459 print_port(dst->port_op, dst->port[0], 460 dst->port[1], 461 proto == IPPROTO_TCP ? "tcp" : "udp", opts); 462 } 463 } 464 465 void 466 print_pool(struct pf_pool *pool, u_int16_t p1, u_int16_t p2, 467 sa_family_t af, int id, int verbose) 468 { 469 if (pool->ifname[0]) { 470 if (!PF_AZERO(&pool->addr.v.a.addr, af)) { 471 print_addr(&pool->addr, af, verbose); 472 printf("@"); 473 } 474 printf("%s", pool->ifname); 475 } else 476 print_addr(&pool->addr, af, verbose); 477 switch (id) { 478 case PF_POOL_NAT: 479 if ((p1 != PF_NAT_PROXY_PORT_LOW || 480 p2 != PF_NAT_PROXY_PORT_HIGH) && (p1 != 0 || p2 != 0)) { 481 if (p1 == p2) 482 printf(" port %u", p1); 483 else 484 printf(" port %u:%u", p1, p2); 485 } 486 break; 487 case PF_POOL_RDR: 488 if (p1) { 489 printf(" port %u", p1); 490 if (p2 && (p2 != p1)) 491 printf(":%u", p2); 492 } 493 break; 494 default: 495 break; 496 } 497 switch (pool->opts & PF_POOL_TYPEMASK) { 498 case PF_POOL_NONE: 499 break; 500 case PF_POOL_BITMASK: 501 printf(" bitmask"); 502 break; 503 case PF_POOL_RANDOM: 504 printf(" random"); 505 break; 506 case PF_POOL_SRCHASH: 507 printf(" source-hash 0x%08x%08x%08x%08x", 508 pool->key.key32[0], pool->key.key32[1], 509 pool->key.key32[2], pool->key.key32[3]); 510 break; 511 case PF_POOL_ROUNDROBIN: 512 printf(" round-robin"); 513 break; 514 case PF_POOL_LEASTSTATES: 515 printf(" least-states"); 516 break; 517 } 518 if (pool->opts & PF_POOL_STICKYADDR) 519 printf(" sticky-address"); 520 if (id == PF_POOL_NAT && p1 == 0 && p2 == 0) 521 printf(" static-port"); 522 } 523 524 const char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES; 525 const char *pf_lcounters[LCNT_MAX+1] = LCNT_NAMES; 526 const char *pf_fcounters[FCNT_MAX+1] = FCNT_NAMES; 527 const char *pf_scounters[FCNT_MAX+1] = FCNT_NAMES; 528 529 void 530 print_status(struct pf_status *s, struct pfctl_watermarks *synflwats, int opts) 531 { 532 char statline[80], *running, *debug; 533 time_t runtime = 0; 534 struct timespec uptime; 535 int i; 536 char buf[PF_MD5_DIGEST_LENGTH * 2 + 1]; 537 static const char hex[] = "0123456789abcdef"; 538 539 if (!clock_gettime(CLOCK_UPTIME, &uptime)) 540 runtime = uptime.tv_sec - s->since; 541 running = s->running ? "Enabled" : "Disabled"; 542 543 if (runtime) { 544 unsigned int sec, min, hrs; 545 time_t day = runtime; 546 547 sec = day % 60; 548 day /= 60; 549 min = day % 60; 550 day /= 60; 551 hrs = day % 24; 552 day /= 24; 553 snprintf(statline, sizeof(statline), 554 "Status: %s for %lld days %.2u:%.2u:%.2u", 555 running, (long long)day, hrs, min, sec); 556 } else 557 snprintf(statline, sizeof(statline), "Status: %s", running); 558 printf("%-44s", statline); 559 if (asprintf(&debug, "Debug: %s", loglevel_to_string(s->debug)) != -1) { 560 printf("%15s\n\n", debug); 561 free(debug); 562 } 563 564 if (opts & PF_OPT_VERBOSE) { 565 printf("Hostid: 0x%08x\n", ntohl(s->hostid)); 566 567 for (i = 0; i < PF_MD5_DIGEST_LENGTH; i++) { 568 buf[i + i] = hex[s->pf_chksum[i] >> 4]; 569 buf[i + i + 1] = hex[s->pf_chksum[i] & 0x0f]; 570 } 571 buf[i + i] = '\0'; 572 printf("Checksum: 0x%s\n\n", buf); 573 } 574 575 if (s->ifname[0] != 0) { 576 printf("Interface Stats for %-16s %5s %16s\n", 577 s->ifname, "IPv4", "IPv6"); 578 printf(" %-25s %14llu %16llu\n", "Bytes In", 579 (unsigned long long)s->bcounters[0][0], 580 (unsigned long long)s->bcounters[1][0]); 581 printf(" %-25s %14llu %16llu\n", "Bytes Out", 582 (unsigned long long)s->bcounters[0][1], 583 (unsigned long long)s->bcounters[1][1]); 584 printf(" Packets In\n"); 585 printf(" %-23s %14llu %16llu\n", "Passed", 586 (unsigned long long)s->pcounters[0][0][PF_PASS], 587 (unsigned long long)s->pcounters[1][0][PF_PASS]); 588 printf(" %-23s %14llu %16llu\n", "Blocked", 589 (unsigned long long)s->pcounters[0][0][PF_DROP], 590 (unsigned long long)s->pcounters[1][0][PF_DROP]); 591 printf(" Packets Out\n"); 592 printf(" %-23s %14llu %16llu\n", "Passed", 593 (unsigned long long)s->pcounters[0][1][PF_PASS], 594 (unsigned long long)s->pcounters[1][1][PF_PASS]); 595 printf(" %-23s %14llu %16llu\n\n", "Blocked", 596 (unsigned long long)s->pcounters[0][1][PF_DROP], 597 (unsigned long long)s->pcounters[1][1][PF_DROP]); 598 } 599 printf("%-27s %14s %16s\n", "State Table", "Total", "Rate"); 600 printf(" %-25s %14u %14s\n", "current entries", s->states, ""); 601 printf(" %-25s %14u %14s\n", "half-open tcp", s->states_halfopen, ""); 602 for (i = 0; i < FCNT_MAX; i++) { 603 printf(" %-25s %14llu ", pf_fcounters[i], 604 (unsigned long long)s->fcounters[i]); 605 if (runtime > 0) 606 printf("%14.1f/s\n", 607 (double)s->fcounters[i] / (double)runtime); 608 else 609 printf("%14s\n", ""); 610 } 611 if (opts & PF_OPT_VERBOSE) { 612 printf("Source Tracking Table\n"); 613 printf(" %-25s %14u %14s\n", "current entries", 614 s->src_nodes, ""); 615 for (i = 0; i < SCNT_MAX; i++) { 616 printf(" %-25s %14lld ", pf_scounters[i], 617 s->scounters[i]); 618 if (runtime > 0) 619 printf("%14.1f/s\n", 620 (double)s->scounters[i] / (double)runtime); 621 else 622 printf("%14s\n", ""); 623 } 624 } 625 printf("Counters\n"); 626 for (i = 0; i < PFRES_MAX; i++) { 627 printf(" %-25s %14llu ", pf_reasons[i], 628 (unsigned long long)s->counters[i]); 629 if (runtime > 0) 630 printf("%14.1f/s\n", 631 (double)s->counters[i] / (double)runtime); 632 else 633 printf("%14s\n", ""); 634 } 635 if (opts & PF_OPT_VERBOSE) { 636 printf("Limit Counters\n"); 637 for (i = 0; i < LCNT_MAX; i++) { 638 printf(" %-25s %14lld ", pf_lcounters[i], 639 s->lcounters[i]); 640 if (runtime > 0) 641 printf("%14.1f/s\n", 642 (double)s->lcounters[i] / (double)runtime); 643 else 644 printf("%14s\n", ""); 645 } 646 } 647 if (opts & PF_OPT_VERBOSE) { 648 printf("Adaptive Syncookies Watermarks\n"); 649 printf(" %-25s %14d states\n", "start", synflwats->hi); 650 printf(" %-25s %14d states\n", "end", synflwats->lo); 651 } 652 } 653 654 void 655 print_src_node(struct pf_src_node *sn, int opts) 656 { 657 struct pf_addr_wrap aw; 658 int min, sec; 659 660 memset(&aw, 0, sizeof(aw)); 661 if (sn->af == AF_INET) 662 aw.v.a.mask.addr32[0] = 0xffffffff; 663 else 664 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask)); 665 666 aw.v.a.addr = sn->addr; 667 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2); 668 669 if (!PF_AZERO(&sn->raddr, sn->af)) { 670 if (sn->type == PF_SN_NAT) 671 printf(" nat-to "); 672 else if (sn->type == PF_SN_RDR) 673 printf(" rdr-to "); 674 else if (sn->type == PF_SN_ROUTE) 675 printf(" route-to "); 676 else 677 printf(" ??? (%u) ", sn->type); 678 aw.v.a.addr = sn->raddr; 679 print_addr(&aw, sn->naf ? sn->naf : sn->af, 680 opts & PF_OPT_VERBOSE2); 681 } 682 683 printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states, 684 sn->conn, sn->conn_rate.count / 1000, 685 (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds); 686 if (opts & PF_OPT_VERBOSE) { 687 sec = sn->creation % 60; 688 sn->creation /= 60; 689 min = sn->creation % 60; 690 sn->creation /= 60; 691 printf(" age %.2u:%.2u:%.2u", sn->creation, min, sec); 692 if (sn->states == 0) { 693 sec = sn->expire % 60; 694 sn->expire /= 60; 695 min = sn->expire % 60; 696 sn->expire /= 60; 697 printf(", expires in %.2u:%.2u:%.2u", 698 sn->expire, min, sec); 699 } 700 printf(", %llu pkts, %llu bytes", 701 sn->packets[0] + sn->packets[1], 702 sn->bytes[0] + sn->bytes[1]); 703 if (sn->rule.nr != -1) 704 printf(", rule %u", sn->rule.nr); 705 printf("\n"); 706 } 707 } 708 709 void 710 print_rule(struct pf_rule *r, const char *anchor_call, int opts) 711 { 712 static const char *actiontypes[] = { "pass", "block", "scrub", 713 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr", 714 "", "", "match"}; 715 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 716 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 717 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 718 int i, ropts; 719 int verbose = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 720 char *p; 721 722 if ((r->rule_flag & PFRULE_EXPIRED) && (!verbose)) 723 return; 724 725 if (verbose) 726 printf("@%d ", r->nr); 727 728 if (r->action > PF_MATCH) 729 printf("action(%d)", r->action); 730 else if (anchor_call[0]) { 731 p = strrchr(anchor_call, '/'); 732 if (p ? p[1] == '_' : anchor_call[0] == '_') 733 printf("%s", anchortypes[r->action]); 734 else 735 printf("%s \"%s\"", anchortypes[r->action], 736 anchor_call); 737 } else 738 printf("%s", actiontypes[r->action]); 739 if (r->action == PF_DROP) { 740 if (r->rule_flag & PFRULE_RETURN) 741 printf(" return"); 742 else if (r->rule_flag & PFRULE_RETURNRST) { 743 if (!r->return_ttl) 744 printf(" return-rst"); 745 else 746 printf(" return-rst(ttl %d)", r->return_ttl); 747 } else if (r->rule_flag & PFRULE_RETURNICMP) { 748 const struct icmpcodeent *ic, *ic6; 749 750 ic = geticmpcodebynumber(r->return_icmp >> 8, 751 r->return_icmp & 255, AF_INET); 752 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 753 r->return_icmp6 & 255, AF_INET6); 754 755 switch (r->af) { 756 case AF_INET: 757 printf(" return-icmp"); 758 if (ic == NULL) 759 printf("(%u)", r->return_icmp & 255); 760 else 761 printf("(%s)", ic->name); 762 break; 763 case AF_INET6: 764 printf(" return-icmp6"); 765 if (ic6 == NULL) 766 printf("(%u)", r->return_icmp6 & 255); 767 else 768 printf("(%s)", ic6->name); 769 break; 770 default: 771 printf(" return-icmp"); 772 if (ic == NULL) 773 printf("(%u, ", r->return_icmp & 255); 774 else 775 printf("(%s, ", ic->name); 776 if (ic6 == NULL) 777 printf("%u)", r->return_icmp6 & 255); 778 else 779 printf("%s)", ic6->name); 780 break; 781 } 782 } else 783 printf(" drop"); 784 } 785 if (r->direction == PF_IN) 786 printf(" in"); 787 else if (r->direction == PF_OUT) 788 printf(" out"); 789 if (r->log) { 790 printf(" log"); 791 if (r->log & ~PF_LOG || r->logif) { 792 int count = 0; 793 794 printf(" ("); 795 if (r->log & PF_LOG_ALL) 796 printf("%sall", count++ ? ", " : ""); 797 if (r->log & PF_LOG_MATCHES) 798 printf("%smatches", count++ ? ", " : ""); 799 if (r->log & PF_LOG_SOCKET_LOOKUP) 800 printf("%suser", count++ ? ", " : ""); 801 if (r->logif) 802 printf("%sto pflog%u", count++ ? ", " : "", 803 r->logif); 804 printf(")"); 805 } 806 } 807 if (r->quick) 808 printf(" quick"); 809 if (r->ifname[0]) { 810 if (r->ifnot) 811 printf(" on ! %s", r->ifname); 812 else 813 printf(" on %s", r->ifname); 814 } 815 if (r->onrdomain >= 0) { 816 if (r->ifnot) 817 printf(" on ! rdomain %d", r->onrdomain); 818 else 819 printf(" on rdomain %d", r->onrdomain); 820 } 821 if (r->af) { 822 if (r->af == AF_INET) 823 printf(" inet"); 824 else 825 printf(" inet6"); 826 } 827 if (r->proto) { 828 struct protoent *p; 829 830 if ((p = getprotobynumber(r->proto)) != NULL) 831 printf(" proto %s", p->p_name); 832 else 833 printf(" proto %u", r->proto); 834 } 835 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 836 opts); 837 if (r->rcv_ifname[0]) 838 printf(" %sreceived-on %s", r->rcvifnot ? "!" : "", 839 r->rcv_ifname); 840 if (r->uid.op) 841 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 842 UID_MAX); 843 if (r->gid.op) 844 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 845 GID_MAX); 846 if (r->flags || r->flagset) { 847 printf(" flags "); 848 print_flags(r->flags); 849 printf("/"); 850 print_flags(r->flagset); 851 } else if ((r->action == PF_PASS || r->action == PF_MATCH) && 852 (!r->proto || r->proto == IPPROTO_TCP) && 853 !(r->rule_flag & PFRULE_FRAGMENT) && 854 !anchor_call[0] && r->keep_state) 855 printf(" flags any"); 856 if (r->type) { 857 const struct icmptypeent *it; 858 859 it = geticmptypebynumber(r->type-1, r->af); 860 if (r->af != AF_INET6) 861 printf(" icmp-type"); 862 else 863 printf(" icmp6-type"); 864 if (it != NULL) 865 printf(" %s", it->name); 866 else 867 printf(" %u", r->type-1); 868 if (r->code) { 869 const struct icmpcodeent *ic; 870 871 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 872 if (ic != NULL) 873 printf(" code %s", ic->name); 874 else 875 printf(" code %u", r->code-1); 876 } 877 } 878 if (r->tos) 879 printf(" tos 0x%2.2x", r->tos); 880 if (r->prio) 881 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio); 882 if (r->pktrate.limit) 883 printf(" max-pkt-rate %u/%u", r->pktrate.limit, 884 r->pktrate.seconds); 885 886 if (r->scrub_flags & PFSTATE_SETMASK || r->qname[0] || 887 r->rule_flag & PFRULE_SETDELAY) { 888 char *comma = ""; 889 printf(" set ("); 890 if (r->scrub_flags & PFSTATE_SETPRIO) { 891 if (r->set_prio[0] == r->set_prio[1]) 892 printf("%sprio %u", comma, r->set_prio[0]); 893 else 894 printf("%sprio(%u, %u)", comma, r->set_prio[0], 895 r->set_prio[1]); 896 comma = ", "; 897 } 898 if (r->qname[0]) { 899 if (r->pqname[0]) 900 printf("%squeue(%s, %s)", comma, r->qname, 901 r->pqname); 902 else 903 printf("%squeue %s", comma, r->qname); 904 comma = ", "; 905 } 906 if (r->scrub_flags & PFSTATE_SETTOS) { 907 printf("%stos 0x%2.2x", comma, r->set_tos); 908 comma = ", "; 909 } 910 if (r->rule_flag & PFRULE_SETDELAY) { 911 printf("%sdelay %u", comma, r->delay); 912 comma = ", "; 913 } 914 printf(")"); 915 } 916 917 ropts = 0; 918 if (r->max_states || r->max_src_nodes || r->max_src_states) 919 ropts = 1; 920 if (r->rule_flag & PFRULE_NOSYNC) 921 ropts = 1; 922 if (r->rule_flag & PFRULE_SRCTRACK) 923 ropts = 1; 924 if (r->rule_flag & PFRULE_IFBOUND) 925 ropts = 1; 926 if (r->rule_flag & PFRULE_STATESLOPPY) 927 ropts = 1; 928 if (r->rule_flag & PFRULE_PFLOW) 929 ropts = 1; 930 for (i = 0; !ropts && i < PFTM_MAX; ++i) 931 if (r->timeout[i]) 932 ropts = 1; 933 934 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 935 printf(" no state"); 936 else if (r->keep_state == PF_STATE_NORMAL && ropts) 937 printf(" keep state"); 938 else if (r->keep_state == PF_STATE_MODULATE) 939 printf(" modulate state"); 940 else if (r->keep_state == PF_STATE_SYNPROXY) 941 printf(" synproxy state"); 942 if (r->prob) { 943 char buf[20]; 944 945 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 946 for (i = strlen(buf)-1; i > 0; i--) { 947 if (buf[i] == '0') 948 buf[i] = '\0'; 949 else { 950 if (buf[i] == '.') 951 buf[i] = '\0'; 952 break; 953 } 954 } 955 printf(" probability %s%%", buf); 956 } 957 if (ropts) { 958 printf(" ("); 959 if (r->max_states) { 960 printf("max %u", r->max_states); 961 ropts = 0; 962 } 963 if (r->rule_flag & PFRULE_NOSYNC) { 964 if (!ropts) 965 printf(", "); 966 printf("no-sync"); 967 ropts = 0; 968 } 969 if (r->rule_flag & PFRULE_SRCTRACK) { 970 if (!ropts) 971 printf(", "); 972 printf("source-track"); 973 if (r->rule_flag & PFRULE_RULESRCTRACK) 974 printf(" rule"); 975 else 976 printf(" global"); 977 ropts = 0; 978 } 979 if (r->max_src_states) { 980 if (!ropts) 981 printf(", "); 982 printf("max-src-states %u", r->max_src_states); 983 ropts = 0; 984 } 985 if (r->max_src_conn) { 986 if (!ropts) 987 printf(", "); 988 printf("max-src-conn %u", r->max_src_conn); 989 ropts = 0; 990 } 991 if (r->max_src_conn_rate.limit) { 992 if (!ropts) 993 printf(", "); 994 printf("max-src-conn-rate %u/%u", 995 r->max_src_conn_rate.limit, 996 r->max_src_conn_rate.seconds); 997 ropts = 0; 998 } 999 if (r->max_src_nodes) { 1000 if (!ropts) 1001 printf(", "); 1002 printf("max-src-nodes %u", r->max_src_nodes); 1003 ropts = 0; 1004 } 1005 if (r->overload_tblname[0]) { 1006 if (!ropts) 1007 printf(", "); 1008 printf("overload <%s>", r->overload_tblname); 1009 if (r->flush) 1010 printf(" flush"); 1011 if (r->flush & PF_FLUSH_GLOBAL) 1012 printf(" global"); 1013 } 1014 if (r->rule_flag & PFRULE_IFBOUND) { 1015 if (!ropts) 1016 printf(", "); 1017 printf("if-bound"); 1018 ropts = 0; 1019 } 1020 if (r->rule_flag & PFRULE_STATESLOPPY) { 1021 if (!ropts) 1022 printf(", "); 1023 printf("sloppy"); 1024 ropts = 0; 1025 } 1026 if (r->rule_flag & PFRULE_PFLOW) { 1027 if (!ropts) 1028 printf(", "); 1029 printf("pflow"); 1030 ropts = 0; 1031 } 1032 for (i = 0; i < PFTM_MAX; ++i) 1033 if (r->timeout[i]) { 1034 int j; 1035 1036 if (!ropts) 1037 printf(", "); 1038 ropts = 0; 1039 for (j = 0; pf_timeouts[j].name != NULL; 1040 ++j) 1041 if (pf_timeouts[j].timeout == i) 1042 break; 1043 printf("%s %u", pf_timeouts[j].name == NULL ? 1044 "inv.timeout" : pf_timeouts[j].name, 1045 r->timeout[i]); 1046 } 1047 printf(")"); 1048 } 1049 1050 if (r->rule_flag & PFRULE_FRAGMENT) 1051 printf(" fragment"); 1052 1053 if (r->scrub_flags & PFSTATE_SCRUBMASK || r->min_ttl || r->max_mss) { 1054 printf(" scrub ("); 1055 ropts = 1; 1056 if (r->scrub_flags & PFSTATE_NODF) { 1057 printf("no-df"); 1058 ropts = 0; 1059 } 1060 if (r->scrub_flags & PFSTATE_RANDOMID) { 1061 if (!ropts) 1062 printf(" "); 1063 printf("random-id"); 1064 ropts = 0; 1065 } 1066 if (r->min_ttl) { 1067 if (!ropts) 1068 printf(" "); 1069 printf("min-ttl %d", r->min_ttl); 1070 ropts = 0; 1071 } 1072 if (r->scrub_flags & PFSTATE_SCRUB_TCP) { 1073 if (!ropts) 1074 printf(" "); 1075 printf("reassemble tcp"); 1076 ropts = 0; 1077 } 1078 if (r->max_mss) { 1079 if (!ropts) 1080 printf(" "); 1081 printf("max-mss %d", r->max_mss); 1082 ropts = 0; 1083 } 1084 printf(")"); 1085 } 1086 1087 if (r->allow_opts) 1088 printf(" allow-opts"); 1089 if (r->label[0]) 1090 printf(" label \"%s\"", r->label); 1091 if (r->rule_flag & PFRULE_ONCE) 1092 printf(" once"); 1093 if (r->tagname[0]) 1094 printf(" tag %s", r->tagname); 1095 if (r->match_tagname[0]) { 1096 if (r->match_tag_not) 1097 printf(" !"); 1098 printf(" tagged %s", r->match_tagname); 1099 } 1100 if (r->rtableid != -1) 1101 printf(" rtable %u", r->rtableid); 1102 switch (r->divert.type) { 1103 case PF_DIVERT_NONE: 1104 break; 1105 case PF_DIVERT_TO: { 1106 printf(" divert-to "); 1107 print_addr_str(r->af, &r->divert.addr); 1108 printf(" port %u", ntohs(r->divert.port)); 1109 break; 1110 } 1111 case PF_DIVERT_REPLY: 1112 printf(" divert-reply"); 1113 break; 1114 case PF_DIVERT_PACKET: 1115 printf(" divert-packet port %u", ntohs(r->divert.port)); 1116 break; 1117 default: 1118 printf(" divert ???"); 1119 break; 1120 } 1121 1122 if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE && 1123 r->rule_flag & PFRULE_AFTO) { 1124 printf(" af-to %s from ", r->naf == AF_INET ? "inet" : "inet6"); 1125 print_pool(&r->nat, r->nat.proxy_port[0], 1126 r->nat.proxy_port[1], r->naf ? r->naf : r->af, 1127 PF_POOL_NAT, verbose); 1128 if (r->rdr.addr.type != PF_ADDR_NONE) { 1129 printf(" to "); 1130 print_pool(&r->rdr, r->rdr.proxy_port[0], 1131 r->rdr.proxy_port[1], r->naf ? r->naf : r->af, 1132 PF_POOL_RDR, verbose); 1133 } 1134 } else if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE) { 1135 printf (" nat-to "); 1136 print_pool(&r->nat, r->nat.proxy_port[0], 1137 r->nat.proxy_port[1], r->naf ? r->naf : r->af, 1138 PF_POOL_NAT, verbose); 1139 } else if (!anchor_call[0] && r->rdr.addr.type != PF_ADDR_NONE) { 1140 printf (" rdr-to "); 1141 print_pool(&r->rdr, r->rdr.proxy_port[0], 1142 r->rdr.proxy_port[1], r->af, PF_POOL_RDR, verbose); 1143 } 1144 if (r->rt) { 1145 if (r->rt == PF_ROUTETO) 1146 printf(" route-to"); 1147 else if (r->rt == PF_REPLYTO) 1148 printf(" reply-to"); 1149 else if (r->rt == PF_DUPTO) 1150 printf(" dup-to"); 1151 printf(" "); 1152 print_pool(&r->route, 0, 0, r->af, PF_POOL_ROUTE, verbose); 1153 } 1154 } 1155 1156 void 1157 print_tabledef(const char *name, int flags, int addrs, 1158 struct node_tinithead *nodes) 1159 { 1160 struct node_tinit *ti, *nti; 1161 struct node_host *h; 1162 1163 printf("table <%s>", name); 1164 if (flags & PFR_TFLAG_CONST) 1165 printf(" const"); 1166 if (flags & PFR_TFLAG_PERSIST) 1167 printf(" persist"); 1168 if (flags & PFR_TFLAG_COUNTERS) 1169 printf(" counters"); 1170 SIMPLEQ_FOREACH(ti, nodes, entries) { 1171 if (ti->file) { 1172 printf(" file \"%s\"", ti->file); 1173 continue; 1174 } 1175 printf(" {"); 1176 for (;;) { 1177 for (h = ti->host; h != NULL; h = h->next) { 1178 printf(h->not ? " !" : " "); 1179 print_addr(&h->addr, h->af, 0); 1180 if (h->ifname) 1181 printf("@%s", h->ifname); 1182 } 1183 nti = SIMPLEQ_NEXT(ti, entries); 1184 if (nti != NULL && nti->file == NULL) 1185 ti = nti; /* merge lists */ 1186 else 1187 break; 1188 } 1189 printf(" }"); 1190 } 1191 if (addrs && SIMPLEQ_EMPTY(nodes)) 1192 printf(" { }"); 1193 printf("\n"); 1194 } 1195 1196 void 1197 print_bwspec(const char *prefix, struct pf_queue_bwspec *bw) 1198 { 1199 u_int rate; 1200 int i; 1201 static const char unit[] = " KMG"; 1202 1203 if (bw->percent) 1204 printf("%s%u%%", prefix, bw->percent); 1205 else if (bw->absolute) { 1206 rate = bw->absolute; 1207 for (i = 0; rate >= 1000 && i <= 3 && (rate % 1000 == 0); i++) 1208 rate /= 1000; 1209 printf("%s%u%c", prefix, rate, unit[i]); 1210 } 1211 } 1212 1213 void 1214 print_scspec(const char *prefix, struct pf_queue_scspec *sc) 1215 { 1216 print_bwspec(prefix, &sc->m2); 1217 if (sc->d) { 1218 printf(" burst "); 1219 print_bwspec("", &sc->m1); 1220 printf(" for %ums", sc->d); 1221 } 1222 } 1223 1224 void 1225 print_queuespec(struct pf_queuespec *q) 1226 { 1227 printf("queue %s", q->qname); 1228 if (q->parent[0]) 1229 printf(" parent %s", q->parent); 1230 else if (q->ifname[0]) 1231 printf(" on %s", q->ifname); 1232 if (q->flags & PFQS_FLOWQUEUE) { 1233 printf(" flows %u", q->flowqueue.flows); 1234 if (q->flowqueue.quantum > 0) 1235 printf(" quantum %u", q->flowqueue.quantum); 1236 if (q->flowqueue.interval > 0) 1237 printf(" interval %ums", 1238 q->flowqueue.interval / 1000000); 1239 if (q->flowqueue.target > 0) 1240 printf(" target %ums", 1241 q->flowqueue.target / 1000000); 1242 } 1243 if (q->linkshare.m1.absolute || q->linkshare.m2.absolute) { 1244 print_scspec(" bandwidth ", &q->linkshare); 1245 print_scspec(", min ", &q->realtime); 1246 print_scspec(", max ", &q->upperlimit); 1247 } 1248 if (q->flags & PFQS_DEFAULT) 1249 printf(" default"); 1250 if (q->qlimit) 1251 printf(" qlimit %u", q->qlimit); 1252 printf("\n"); 1253 } 1254 1255 int 1256 parse_flags(char *s) 1257 { 1258 char *p, *q; 1259 u_int8_t f = 0; 1260 1261 for (p = s; *p; p++) { 1262 if ((q = strchr(tcpflags, *p)) == NULL) 1263 return -1; 1264 else 1265 f |= 1 << (q - tcpflags); 1266 } 1267 return (f ? f : PF_TH_ALL); 1268 } 1269 1270 void 1271 set_ipmask(struct node_host *h, int bb) 1272 { 1273 struct pf_addr *m, *n; 1274 int i, j = 0; 1275 u_int8_t b; 1276 1277 m = &h->addr.v.a.mask; 1278 memset(m, 0, sizeof(*m)); 1279 1280 if (bb == -1) 1281 b = h->af == AF_INET ? 32 : 128; 1282 else 1283 b = bb; 1284 1285 while (b >= 32) { 1286 m->addr32[j++] = 0xffffffff; 1287 b -= 32; 1288 } 1289 for (i = 31; i > 31-b; --i) 1290 m->addr32[j] |= (1 << i); 1291 if (b) 1292 m->addr32[j] = htonl(m->addr32[j]); 1293 1294 /* Mask off bits of the address that will never be used. */ 1295 n = &h->addr.v.a.addr; 1296 if (h->addr.type == PF_ADDR_ADDRMASK) 1297 for (i = 0; i < 4; i++) 1298 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1299 } 1300 1301 int 1302 check_netmask(struct node_host *h, sa_family_t af) 1303 { 1304 struct node_host *n = NULL; 1305 struct pf_addr *m; 1306 1307 for (n = h; n != NULL; n = n->next) { 1308 if (h->addr.type == PF_ADDR_TABLE) 1309 continue; 1310 m = &h->addr.v.a.mask; 1311 /* netmasks > 32 bit are invalid on v4 */ 1312 if (af == AF_INET && 1313 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1314 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1315 unmask(m)); 1316 return (1); 1317 } 1318 } 1319 return (0); 1320 } 1321 1322 struct node_host * 1323 gen_dynnode(struct node_host *h, sa_family_t af) 1324 { 1325 struct node_host *n; 1326 1327 if (h->addr.type != PF_ADDR_DYNIFTL) 1328 return (NULL); 1329 1330 if ((n = calloc(1, sizeof(*n))) == NULL) 1331 return (NULL); 1332 bcopy(h, n, sizeof(*n)); 1333 n->ifname = NULL; 1334 n->next = NULL; 1335 n->tail = NULL; 1336 1337 /* fix up netmask */ 1338 if (af == AF_INET && unmask(&n->addr.v.a.mask) > 32) 1339 set_ipmask(n, 32); 1340 1341 return (n); 1342 } 1343 1344 /* interface lookup routines */ 1345 1346 struct node_host *iftab; 1347 1348 void 1349 ifa_load(void) 1350 { 1351 struct ifaddrs *ifap, *ifa; 1352 struct node_host *n = NULL, *h = NULL; 1353 1354 if (getifaddrs(&ifap) < 0) 1355 err(1, "getifaddrs"); 1356 1357 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1358 if (!(ifa->ifa_addr->sa_family == AF_INET || 1359 ifa->ifa_addr->sa_family == AF_INET6 || 1360 ifa->ifa_addr->sa_family == AF_LINK)) 1361 continue; 1362 n = calloc(1, sizeof(struct node_host)); 1363 if (n == NULL) 1364 err(1, "%s: calloc", __func__); 1365 n->af = ifa->ifa_addr->sa_family; 1366 n->ifa_flags = ifa->ifa_flags; 1367 #ifdef __KAME__ 1368 if (n->af == AF_INET6 && 1369 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1370 ifa->ifa_addr)->sin6_addr) && 1371 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1372 0) { 1373 struct sockaddr_in6 *sin6; 1374 1375 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1376 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1377 sin6->sin6_addr.s6_addr[3]; 1378 sin6->sin6_addr.s6_addr[2] = 0; 1379 sin6->sin6_addr.s6_addr[3] = 0; 1380 } 1381 #endif 1382 n->ifindex = 0; 1383 if (n->af == AF_LINK) 1384 n->ifindex = ((struct sockaddr_dl *) 1385 ifa->ifa_addr)->sdl_index; 1386 else { 1387 copy_satopfaddr(&n->addr.v.a.addr, ifa->ifa_addr); 1388 ifa->ifa_netmask->sa_family = ifa->ifa_addr->sa_family; 1389 copy_satopfaddr(&n->addr.v.a.mask, ifa->ifa_netmask); 1390 if (ifa->ifa_broadaddr != NULL) { 1391 ifa->ifa_broadaddr->sa_family = ifa->ifa_addr->sa_family; 1392 copy_satopfaddr(&n->bcast, ifa->ifa_broadaddr); 1393 } 1394 if (ifa->ifa_dstaddr != NULL) { 1395 ifa->ifa_dstaddr->sa_family = ifa->ifa_addr->sa_family; 1396 copy_satopfaddr(&n->peer, ifa->ifa_dstaddr); 1397 } 1398 if (n->af == AF_INET6) 1399 n->ifindex = ((struct sockaddr_in6 *) 1400 ifa->ifa_addr)->sin6_scope_id; 1401 } 1402 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1403 err(1, "%s: strdup", __func__); 1404 n->next = NULL; 1405 n->tail = n; 1406 if (h == NULL) 1407 h = n; 1408 else { 1409 h->tail->next = n; 1410 h->tail = n; 1411 } 1412 } 1413 1414 iftab = h; 1415 freeifaddrs(ifap); 1416 } 1417 1418 unsigned int 1419 ifa_nametoindex(const char *ifa_name) 1420 { 1421 struct node_host *p; 1422 1423 for (p = iftab; p; p = p->next) { 1424 if (p->af == AF_LINK && strcmp(p->ifname, ifa_name) == 0) 1425 return (p->ifindex); 1426 } 1427 errno = ENXIO; 1428 return (0); 1429 } 1430 1431 char * 1432 ifa_indextoname(unsigned int ifindex, char *ifa_name) 1433 { 1434 struct node_host *p; 1435 1436 for (p = iftab; p; p = p->next) { 1437 if (p->af == AF_LINK && ifindex == p->ifindex) { 1438 strlcpy(ifa_name, p->ifname, IFNAMSIZ); 1439 return (ifa_name); 1440 } 1441 } 1442 errno = ENXIO; 1443 return (NULL); 1444 } 1445 1446 struct node_host * 1447 ifa_exists(const char *ifa_name) 1448 { 1449 struct node_host *n; 1450 struct ifgroupreq ifgr; 1451 int s; 1452 1453 if (iftab == NULL) 1454 ifa_load(); 1455 1456 /* check whether this is a group */ 1457 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 1458 err(1, "socket"); 1459 bzero(&ifgr, sizeof(ifgr)); 1460 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1461 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == 0) { 1462 /* fake a node_host */ 1463 if ((n = calloc(1, sizeof(*n))) == NULL) 1464 err(1, "calloc"); 1465 if ((n->ifname = strdup(ifa_name)) == NULL) 1466 err(1, "strdup"); 1467 close(s); 1468 return (n); 1469 } 1470 close(s); 1471 1472 for (n = iftab; n; n = n->next) { 1473 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1474 return (n); 1475 } 1476 1477 return (NULL); 1478 } 1479 1480 struct node_host * 1481 ifa_grouplookup(const char *ifa_name, int flags) 1482 { 1483 struct ifg_req *ifg; 1484 struct ifgroupreq ifgr; 1485 int s, len; 1486 struct node_host *n, *h = NULL; 1487 1488 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 1489 err(1, "socket"); 1490 bzero(&ifgr, sizeof(ifgr)); 1491 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1492 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) { 1493 close(s); 1494 return (NULL); 1495 } 1496 1497 len = ifgr.ifgr_len; 1498 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1499 err(1, "calloc"); 1500 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1501 err(1, "SIOCGIFGMEMB"); 1502 1503 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1504 ifg++) { 1505 len -= sizeof(struct ifg_req); 1506 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1507 continue; 1508 if (h == NULL) 1509 h = n; 1510 else { 1511 h->tail->next = n; 1512 h->tail = n->tail; 1513 } 1514 } 1515 free(ifgr.ifgr_groups); 1516 close(s); 1517 1518 return (h); 1519 } 1520 1521 struct node_host * 1522 ifa_lookup(const char *ifa_name, int flags) 1523 { 1524 struct node_host *p = NULL, *h = NULL, *n = NULL; 1525 int got4 = 0, got6 = 0; 1526 const char *last_if = NULL; 1527 1528 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1529 return (h); 1530 1531 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1532 ifa_name = NULL; 1533 1534 if (iftab == NULL) 1535 ifa_load(); 1536 1537 for (p = iftab; p; p = p->next) { 1538 if (ifa_skip_if(ifa_name, p)) 1539 continue; 1540 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1541 continue; 1542 if ((flags & PFI_AFLAG_BROADCAST) && 1543 !(p->ifa_flags & IFF_BROADCAST)) 1544 continue; 1545 if ((flags & PFI_AFLAG_BROADCAST) && p->bcast.v4.s_addr == 0) 1546 continue; 1547 if ((flags & PFI_AFLAG_PEER) && 1548 !(p->ifa_flags & IFF_POINTOPOINT)) 1549 continue; 1550 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1551 continue; 1552 if (last_if == NULL || strcmp(last_if, p->ifname)) 1553 got4 = got6 = 0; 1554 last_if = p->ifname; 1555 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1556 continue; 1557 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1558 continue; 1559 if (p->af == AF_INET) 1560 got4 = 1; 1561 else 1562 got6 = 1; 1563 n = calloc(1, sizeof(struct node_host)); 1564 if (n == NULL) 1565 err(1, "%s: calloc", __func__); 1566 n->af = p->af; 1567 if (flags & PFI_AFLAG_BROADCAST) 1568 memcpy(&n->addr.v.a.addr, &p->bcast, 1569 sizeof(struct pf_addr)); 1570 else if (flags & PFI_AFLAG_PEER) 1571 memcpy(&n->addr.v.a.addr, &p->peer, 1572 sizeof(struct pf_addr)); 1573 else 1574 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1575 sizeof(struct pf_addr)); 1576 if (flags & PFI_AFLAG_NETWORK) 1577 set_ipmask(n, unmask(&p->addr.v.a.mask)); 1578 else 1579 set_ipmask(n, -1); 1580 n->ifindex = p->ifindex; 1581 1582 n->next = NULL; 1583 n->tail = n; 1584 if (h == NULL) 1585 h = n; 1586 else { 1587 h->tail->next = n; 1588 h->tail = n; 1589 } 1590 } 1591 return (h); 1592 } 1593 1594 int 1595 ifa_skip_if(const char *filter, struct node_host *p) 1596 { 1597 int n; 1598 1599 if (p->af != AF_INET && p->af != AF_INET6) 1600 return (1); 1601 if (filter == NULL || !*filter) 1602 return (0); 1603 if (!strcmp(p->ifname, filter)) 1604 return (0); /* exact match */ 1605 n = strlen(filter); 1606 if (n < 1 || n >= IFNAMSIZ) 1607 return (1); /* sanity check */ 1608 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1609 return (1); /* only do exact match in that case */ 1610 if (strncmp(p->ifname, filter, n)) 1611 return (1); /* prefix doesn't match */ 1612 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1613 } 1614 1615 struct node_host * 1616 host(const char *s, int opts) 1617 { 1618 struct node_host *h = NULL, *n; 1619 int mask = -1; 1620 char *p, *ps, *if_name; 1621 const char *errstr; 1622 1623 if ((ps = strdup(s)) == NULL) 1624 err(1, "%s: strdup", __func__); 1625 1626 if ((if_name = strrchr(ps, '@')) != NULL) { 1627 if_name[0] = '\0'; 1628 if_name++; 1629 } 1630 1631 if ((p = strrchr(ps, '/')) != NULL) { 1632 mask = strtonum(p+1, 0, 128, &errstr); 1633 if (errstr) { 1634 fprintf(stderr, "netmask is %s: %s\n", errstr, p); 1635 goto error; 1636 } 1637 p[0] = '\0'; 1638 } 1639 1640 if ((h = host_if(ps, mask)) == NULL && 1641 (h = host_ip(ps, mask)) == NULL && 1642 (h = host_dns(ps, mask, (opts & PF_OPT_NODNS))) == NULL) { 1643 fprintf(stderr, "no IP address found for %s\n", s); 1644 goto error; 1645 } 1646 1647 if (if_name && if_name[0]) 1648 for (n = h; n != NULL; n = n->next) 1649 if ((n->ifname = strdup(if_name)) == NULL) 1650 err(1, "%s: strdup", __func__); 1651 for (n = h; n != NULL; n = n->next) { 1652 n->addr.type = PF_ADDR_ADDRMASK; 1653 n->weight = 0; 1654 } 1655 1656 error: 1657 free(ps); 1658 return (h); 1659 } 1660 1661 struct node_host * 1662 host_if(const char *s, int mask) 1663 { 1664 struct node_host *n, *h = NULL; 1665 char *p, *ps; 1666 int flags = 0; 1667 1668 if ((ps = strdup(s)) == NULL) 1669 err(1, "host_if: strdup"); 1670 while ((p = strrchr(ps, ':')) != NULL) { 1671 if (!strcmp(p+1, "network")) 1672 flags |= PFI_AFLAG_NETWORK; 1673 else if (!strcmp(p+1, "broadcast")) 1674 flags |= PFI_AFLAG_BROADCAST; 1675 else if (!strcmp(p+1, "peer")) 1676 flags |= PFI_AFLAG_PEER; 1677 else if (!strcmp(p+1, "0")) 1678 flags |= PFI_AFLAG_NOALIAS; 1679 else 1680 goto error; 1681 *p = '\0'; 1682 } 1683 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1684 fprintf(stderr, "illegal combination of interface modifiers\n"); 1685 goto error; 1686 } 1687 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1688 fprintf(stderr, "network or broadcast lookup, but " 1689 "extra netmask given\n"); 1690 goto error; 1691 } 1692 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1693 /* interface with this name exists */ 1694 h = ifa_lookup(ps, flags); 1695 if (mask > -1) 1696 for (n = h; n != NULL; n = n->next) 1697 set_ipmask(n, mask); 1698 } 1699 1700 error: 1701 free(ps); 1702 return (h); 1703 } 1704 1705 struct node_host * 1706 host_ip(const char *s, int mask) 1707 { 1708 struct addrinfo hints, *res; 1709 struct node_host *h = NULL; 1710 1711 memset(&hints, 0, sizeof(hints)); 1712 hints.ai_family = AF_UNSPEC; 1713 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1714 hints.ai_flags = AI_NUMERICHOST; 1715 if (getaddrinfo(s, NULL, &hints, &res) == 0) { 1716 h = calloc(1, sizeof(*h)); 1717 if (h == NULL) 1718 err(1, "%s: calloc", __func__); 1719 h->af = res->ai_family; 1720 copy_satopfaddr(&h->addr.v.a.addr, res->ai_addr); 1721 if (h->af == AF_INET6) 1722 h->ifindex = 1723 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1724 freeaddrinfo(res); 1725 } else { /* ie. for 10/8 parsing */ 1726 if (mask == -1) 1727 return (NULL); 1728 h = calloc(1, sizeof(*h)); 1729 if (h == NULL) 1730 err(1, "%s: calloc", __func__); 1731 h->af = AF_INET; 1732 if (inet_net_pton(AF_INET, s, &h->addr.v.a.addr.v4, 1733 sizeof(h->addr.v.a.addr.v4)) == -1) { 1734 free(h); 1735 return (NULL); 1736 } 1737 } 1738 set_ipmask(h, mask); 1739 h->ifname = NULL; 1740 h->next = NULL; 1741 h->tail = h; 1742 1743 return (h); 1744 } 1745 1746 struct node_host * 1747 host_dns(const char *s, int mask, int numeric) 1748 { 1749 struct addrinfo hints, *res0, *res; 1750 struct node_host *n, *h = NULL; 1751 int noalias = 0, got4 = 0, got6 = 0; 1752 char *p, *ps; 1753 1754 if ((ps = strdup(s)) == NULL) 1755 err(1, "host_dns: strdup"); 1756 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1757 noalias = 1; 1758 *p = '\0'; 1759 } 1760 memset(&hints, 0, sizeof(hints)); 1761 hints.ai_family = PF_UNSPEC; 1762 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1763 if (numeric) 1764 hints.ai_flags = AI_NUMERICHOST; 1765 if (getaddrinfo(ps, NULL, &hints, &res0) != 0) 1766 goto error; 1767 1768 for (res = res0; res; res = res->ai_next) { 1769 if (res->ai_family != AF_INET && 1770 res->ai_family != AF_INET6) 1771 continue; 1772 if (noalias) { 1773 if (res->ai_family == AF_INET) { 1774 if (got4) 1775 continue; 1776 got4 = 1; 1777 } else { 1778 if (got6) 1779 continue; 1780 got6 = 1; 1781 } 1782 } 1783 n = calloc(1, sizeof(struct node_host)); 1784 if (n == NULL) 1785 err(1, "host_dns: calloc"); 1786 n->ifname = NULL; 1787 n->af = res->ai_family; 1788 copy_satopfaddr(&n->addr.v.a.addr, res->ai_addr); 1789 if (res->ai_family == AF_INET6) 1790 n->ifindex = 1791 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1792 set_ipmask(n, mask); 1793 n->next = NULL; 1794 n->tail = n; 1795 if (h == NULL) 1796 h = n; 1797 else { 1798 h->tail->next = n; 1799 h->tail = n; 1800 } 1801 } 1802 freeaddrinfo(res0); 1803 error: 1804 free(ps); 1805 1806 return (h); 1807 } 1808 1809 /* 1810 * convert a hostname to a list of addresses and put them in the given buffer. 1811 * test: 1812 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1813 */ 1814 int 1815 append_addr(struct pfr_buffer *b, char *s, int test, int opts) 1816 { 1817 static int previous = 0; 1818 static int expect = 0; 1819 struct pfr_addr *a; 1820 struct node_host *h, *n; 1821 char *r; 1822 const char *errstr; 1823 int rv, not = 0, i = 0; 1824 u_int16_t weight; 1825 1826 /* skip weight if given */ 1827 if (strcmp(s, "weight") == 0) { 1828 expect = 1; 1829 return (1); /* expecting further call */ 1830 } 1831 1832 /* check if previous host is set */ 1833 if (expect) { 1834 /* parse and append load balancing weight */ 1835 weight = strtonum(s, 1, USHRT_MAX, &errstr); 1836 if (errstr) { 1837 fprintf(stderr, "failed to convert weight %s\n", s); 1838 return (-1); 1839 } 1840 if (previous != -1) { 1841 PFRB_FOREACH(a, b) { 1842 if (++i >= previous) { 1843 a->pfra_weight = weight; 1844 a->pfra_type = PFRKE_COST; 1845 } 1846 } 1847 } 1848 1849 expect = 0; 1850 return (0); 1851 } 1852 1853 for (r = s; *r == '!'; r++) 1854 not = !not; 1855 if ((n = host(r, opts)) == NULL) { 1856 errno = 0; 1857 return (-1); 1858 } 1859 rv = append_addr_host(b, n, test, not); 1860 previous = b->pfrb_size; 1861 do { 1862 h = n; 1863 n = n->next; 1864 free(h); 1865 } while (n != NULL); 1866 return (rv); 1867 } 1868 1869 /* 1870 * same as previous function, but with a pre-parsed input and the ability 1871 * to "negate" the result. Does not free the node_host list. 1872 * not: 1873 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1874 */ 1875 int 1876 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1877 { 1878 int bits; 1879 struct pfr_addr addr; 1880 1881 do { 1882 bzero(&addr, sizeof(addr)); 1883 addr.pfra_not = n->not ^ not; 1884 addr.pfra_af = n->af; 1885 addr.pfra_net = unmask(&n->addr.v.a.mask); 1886 if (n->ifname) { 1887 if (strlcpy(addr.pfra_ifname, n->ifname, 1888 sizeof(addr.pfra_ifname)) >= sizeof(addr.pfra_ifname)) 1889 errx(1, "append_addr_host: strlcpy"); 1890 addr.pfra_type = PFRKE_ROUTE; 1891 } 1892 if (n->weight > 0) { 1893 addr.pfra_weight = n->weight; 1894 addr.pfra_type = PFRKE_COST; 1895 } 1896 switch (n->af) { 1897 case AF_INET: 1898 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 1899 bits = 32; 1900 break; 1901 case AF_INET6: 1902 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 1903 sizeof(struct in6_addr)); 1904 bits = 128; 1905 break; 1906 default: 1907 errno = EINVAL; 1908 return (-1); 1909 } 1910 if ((test && (not || addr.pfra_net != bits)) || 1911 addr.pfra_net > bits) { 1912 errno = EINVAL; 1913 return (-1); 1914 } 1915 if (pfr_buf_add(b, &addr)) 1916 return (-1); 1917 } while ((n = n->next) != NULL); 1918 1919 return (0); 1920 } 1921 1922 int 1923 pfctl_add_trans(struct pfr_buffer *buf, int type, const char *anchor) 1924 { 1925 struct pfioc_trans_e trans; 1926 1927 bzero(&trans, sizeof(trans)); 1928 trans.type = type; 1929 if (strlcpy(trans.anchor, anchor, 1930 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 1931 errx(1, "pfctl_add_trans: strlcpy"); 1932 1933 return pfr_buf_add(buf, &trans); 1934 } 1935 1936 u_int32_t 1937 pfctl_get_ticket(struct pfr_buffer *buf, int type, const char *anchor) 1938 { 1939 struct pfioc_trans_e *p; 1940 1941 PFRB_FOREACH(p, buf) 1942 if (type == p->type && !strcmp(anchor, p->anchor)) 1943 return (p->ticket); 1944 errx(1, "pfctl_get_ticket: assertion failed"); 1945 } 1946 1947 int 1948 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 1949 { 1950 struct pfioc_trans trans; 1951 1952 bzero(&trans, sizeof(trans)); 1953 trans.size = buf->pfrb_size - from; 1954 trans.esize = sizeof(struct pfioc_trans_e); 1955 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 1956 return ioctl(dev, cmd, &trans); 1957 } 1958