1 /* $OpenBSD: pfctl_parser.c,v 1.319 2018/02/08 02:26:39 henning Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Daniel Hartmeier 5 * Copyright (c) 2002 - 2013 Henning Brauer <henning@openbsd.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * - Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * - Redistributions in binary form must reproduce the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer in the documentation and/or other materials provided 17 * with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 * 32 */ 33 34 #include <sys/types.h> 35 #include <sys/ioctl.h> 36 #include <sys/socket.h> 37 #include <net/if_dl.h> 38 #include <net/if.h> 39 #include <netinet/in.h> 40 #include <netinet/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, struct pfctl_watermarks *synflwats, 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 if (opts & PF_OPT_VERBOSE) { 636 printf("Adaptive Syncookies Watermarks\n"); 637 printf(" %-25s %14d states\n", "start", synflwats->hi); 638 printf(" %-25s %14d states\n", "end", synflwats->lo); 639 } 640 } 641 642 void 643 print_src_node(struct pf_src_node *sn, int opts) 644 { 645 struct pf_addr_wrap aw; 646 int min, sec; 647 648 memset(&aw, 0, sizeof(aw)); 649 if (sn->af == AF_INET) 650 aw.v.a.mask.addr32[0] = 0xffffffff; 651 else 652 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask)); 653 654 aw.v.a.addr = sn->addr; 655 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE2); 656 657 if (!PF_AZERO(&sn->raddr, sn->af)) { 658 if (sn->type == PF_SN_NAT) 659 printf(" nat-to "); 660 else if (sn->type == PF_SN_RDR) 661 printf(" rdr-to "); 662 else if (sn->type == PF_SN_ROUTE) 663 printf(" route-to "); 664 else 665 printf(" ??? (%u) ", sn->type); 666 aw.v.a.addr = sn->raddr; 667 print_addr(&aw, sn->naf ? sn->naf : sn->af, 668 opts & PF_OPT_VERBOSE2); 669 } 670 671 printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states, 672 sn->conn, sn->conn_rate.count / 1000, 673 (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds); 674 if (opts & PF_OPT_VERBOSE) { 675 sec = sn->creation % 60; 676 sn->creation /= 60; 677 min = sn->creation % 60; 678 sn->creation /= 60; 679 printf(" age %.2u:%.2u:%.2u", sn->creation, min, sec); 680 if (sn->states == 0) { 681 sec = sn->expire % 60; 682 sn->expire /= 60; 683 min = sn->expire % 60; 684 sn->expire /= 60; 685 printf(", expires in %.2u:%.2u:%.2u", 686 sn->expire, min, sec); 687 } 688 printf(", %llu pkts, %llu bytes", 689 sn->packets[0] + sn->packets[1], 690 sn->bytes[0] + sn->bytes[1]); 691 if (sn->rule.nr != -1) 692 printf(", rule %u", sn->rule.nr); 693 printf("\n"); 694 } 695 } 696 697 void 698 print_rule(struct pf_rule *r, const char *anchor_call, int opts) 699 { 700 static const char *actiontypes[] = { "pass", "block", "scrub", 701 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr", 702 "", "", "match"}; 703 static const char *anchortypes[] = { "anchor", "anchor", "anchor", 704 "anchor", "nat-anchor", "nat-anchor", "binat-anchor", 705 "binat-anchor", "rdr-anchor", "rdr-anchor" }; 706 int i, ropts; 707 int verbose = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 708 char *p; 709 710 if ((r->rule_flag & PFRULE_EXPIRED) && (!verbose)) 711 return; 712 713 if (verbose) 714 printf("@%d ", r->nr); 715 716 if (r->action > PF_MATCH) 717 printf("action(%d)", r->action); 718 else if (anchor_call[0]) { 719 p = strrchr(anchor_call, '/'); 720 if (p ? p[1] == '_' : anchor_call[0] == '_') 721 printf("%s", anchortypes[r->action]); 722 else 723 printf("%s \"%s\"", anchortypes[r->action], 724 anchor_call); 725 } else 726 printf("%s", actiontypes[r->action]); 727 if (r->action == PF_DROP) { 728 if (r->rule_flag & PFRULE_RETURN) 729 printf(" return"); 730 else if (r->rule_flag & PFRULE_RETURNRST) { 731 if (!r->return_ttl) 732 printf(" return-rst"); 733 else 734 printf(" return-rst(ttl %d)", r->return_ttl); 735 } else if (r->rule_flag & PFRULE_RETURNICMP) { 736 const struct icmpcodeent *ic, *ic6; 737 738 ic = geticmpcodebynumber(r->return_icmp >> 8, 739 r->return_icmp & 255, AF_INET); 740 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8, 741 r->return_icmp6 & 255, AF_INET6); 742 743 switch (r->af) { 744 case AF_INET: 745 printf(" return-icmp"); 746 if (ic == NULL) 747 printf("(%u)", r->return_icmp & 255); 748 else 749 printf("(%s)", ic->name); 750 break; 751 case AF_INET6: 752 printf(" return-icmp6"); 753 if (ic6 == NULL) 754 printf("(%u)", r->return_icmp6 & 255); 755 else 756 printf("(%s)", ic6->name); 757 break; 758 default: 759 printf(" return-icmp"); 760 if (ic == NULL) 761 printf("(%u, ", r->return_icmp & 255); 762 else 763 printf("(%s, ", ic->name); 764 if (ic6 == NULL) 765 printf("%u)", r->return_icmp6 & 255); 766 else 767 printf("%s)", ic6->name); 768 break; 769 } 770 } else 771 printf(" drop"); 772 } 773 if (r->direction == PF_IN) 774 printf(" in"); 775 else if (r->direction == PF_OUT) 776 printf(" out"); 777 if (r->log) { 778 printf(" log"); 779 if (r->log & ~PF_LOG || r->logif) { 780 int count = 0; 781 782 printf(" ("); 783 if (r->log & PF_LOG_ALL) 784 printf("%sall", count++ ? ", " : ""); 785 if (r->log & PF_LOG_MATCHES) 786 printf("%smatches", count++ ? ", " : ""); 787 if (r->log & PF_LOG_SOCKET_LOOKUP) 788 printf("%suser", count++ ? ", " : ""); 789 if (r->logif) 790 printf("%sto pflog%u", count++ ? ", " : "", 791 r->logif); 792 printf(")"); 793 } 794 } 795 if (r->quick) 796 printf(" quick"); 797 if (r->ifname[0]) { 798 if (r->ifnot) 799 printf(" on ! %s", r->ifname); 800 else 801 printf(" on %s", r->ifname); 802 } 803 if (r->onrdomain >= 0) { 804 if (r->ifnot) 805 printf(" on ! rdomain %d", r->onrdomain); 806 else 807 printf(" on rdomain %d", r->onrdomain); 808 } 809 if (r->af) { 810 if (r->af == AF_INET) 811 printf(" inet"); 812 else 813 printf(" inet6"); 814 } 815 if (r->proto) { 816 struct protoent *p; 817 818 if ((p = getprotobynumber(r->proto)) != NULL) 819 printf(" proto %s", p->p_name); 820 else 821 printf(" proto %u", r->proto); 822 } 823 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto, 824 opts); 825 if (r->rcv_ifname[0]) 826 printf(" %sreceived-on %s", r->rcvifnot ? "!" : "", 827 r->rcv_ifname); 828 if (r->uid.op) 829 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user", 830 UID_MAX); 831 if (r->gid.op) 832 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group", 833 GID_MAX); 834 if (r->flags || r->flagset) { 835 printf(" flags "); 836 print_flags(r->flags); 837 printf("/"); 838 print_flags(r->flagset); 839 } else if ((r->action == PF_PASS || r->action == PF_MATCH) && 840 (!r->proto || r->proto == IPPROTO_TCP) && 841 !(r->rule_flag & PFRULE_FRAGMENT) && 842 !anchor_call[0] && r->keep_state) 843 printf(" flags any"); 844 if (r->type) { 845 const struct icmptypeent *it; 846 847 it = geticmptypebynumber(r->type-1, r->af); 848 if (r->af != AF_INET6) 849 printf(" icmp-type"); 850 else 851 printf(" icmp6-type"); 852 if (it != NULL) 853 printf(" %s", it->name); 854 else 855 printf(" %u", r->type-1); 856 if (r->code) { 857 const struct icmpcodeent *ic; 858 859 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af); 860 if (ic != NULL) 861 printf(" code %s", ic->name); 862 else 863 printf(" code %u", r->code-1); 864 } 865 } 866 if (r->tos) 867 printf(" tos 0x%2.2x", r->tos); 868 if (r->prio) 869 printf(" prio %u", r->prio == PF_PRIO_ZERO ? 0 : r->prio); 870 if (r->pktrate.limit) 871 printf(" max-pkt-rate %u/%u", r->pktrate.limit, 872 r->pktrate.seconds); 873 874 if (r->scrub_flags & PFSTATE_SETMASK || r->qname[0]) { 875 char *comma = ""; 876 printf(" set ("); 877 if (r->scrub_flags & PFSTATE_SETPRIO) { 878 if (r->set_prio[0] == r->set_prio[1]) 879 printf("%s prio %u", comma, r->set_prio[0]); 880 else 881 printf("%s prio(%u, %u)", comma, r->set_prio[0], 882 r->set_prio[1]); 883 comma = ","; 884 } 885 if (r->qname[0]) { 886 if (r->pqname[0]) 887 printf("%s queue(%s, %s)", comma, r->qname, 888 r->pqname); 889 else 890 printf("%s queue %s", comma, r->qname); 891 comma = ","; 892 } 893 if (r->scrub_flags & PFSTATE_SETTOS) { 894 printf("%s tos 0x%2.2x", comma, r->set_tos); 895 comma = ","; 896 } 897 printf(" )"); 898 } 899 900 ropts = 0; 901 if (r->max_states || r->max_src_nodes || r->max_src_states) 902 ropts = 1; 903 if (r->rule_flag & PFRULE_NOSYNC) 904 ropts = 1; 905 if (r->rule_flag & PFRULE_SRCTRACK) 906 ropts = 1; 907 if (r->rule_flag & PFRULE_IFBOUND) 908 ropts = 1; 909 if (r->rule_flag & PFRULE_STATESLOPPY) 910 ropts = 1; 911 if (r->rule_flag & PFRULE_PFLOW) 912 ropts = 1; 913 for (i = 0; !ropts && i < PFTM_MAX; ++i) 914 if (r->timeout[i]) 915 ropts = 1; 916 917 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0]) 918 printf(" no state"); 919 else if (r->keep_state == PF_STATE_NORMAL && ropts) 920 printf(" keep state"); 921 else if (r->keep_state == PF_STATE_MODULATE) 922 printf(" modulate state"); 923 else if (r->keep_state == PF_STATE_SYNPROXY) 924 printf(" synproxy state"); 925 if (r->prob) { 926 char buf[20]; 927 928 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX+1.0)); 929 for (i = strlen(buf)-1; i > 0; i--) { 930 if (buf[i] == '0') 931 buf[i] = '\0'; 932 else { 933 if (buf[i] == '.') 934 buf[i] = '\0'; 935 break; 936 } 937 } 938 printf(" probability %s%%", buf); 939 } 940 if (ropts) { 941 printf(" ("); 942 if (r->max_states) { 943 printf("max %u", r->max_states); 944 ropts = 0; 945 } 946 if (r->rule_flag & PFRULE_NOSYNC) { 947 if (!ropts) 948 printf(", "); 949 printf("no-sync"); 950 ropts = 0; 951 } 952 if (r->rule_flag & PFRULE_SRCTRACK) { 953 if (!ropts) 954 printf(", "); 955 printf("source-track"); 956 if (r->rule_flag & PFRULE_RULESRCTRACK) 957 printf(" rule"); 958 else 959 printf(" global"); 960 ropts = 0; 961 } 962 if (r->max_src_states) { 963 if (!ropts) 964 printf(", "); 965 printf("max-src-states %u", r->max_src_states); 966 ropts = 0; 967 } 968 if (r->max_src_conn) { 969 if (!ropts) 970 printf(", "); 971 printf("max-src-conn %u", r->max_src_conn); 972 ropts = 0; 973 } 974 if (r->max_src_conn_rate.limit) { 975 if (!ropts) 976 printf(", "); 977 printf("max-src-conn-rate %u/%u", 978 r->max_src_conn_rate.limit, 979 r->max_src_conn_rate.seconds); 980 ropts = 0; 981 } 982 if (r->max_src_nodes) { 983 if (!ropts) 984 printf(", "); 985 printf("max-src-nodes %u", r->max_src_nodes); 986 ropts = 0; 987 } 988 if (r->overload_tblname[0]) { 989 if (!ropts) 990 printf(", "); 991 printf("overload <%s>", r->overload_tblname); 992 if (r->flush) 993 printf(" flush"); 994 if (r->flush & PF_FLUSH_GLOBAL) 995 printf(" global"); 996 } 997 if (r->rule_flag & PFRULE_IFBOUND) { 998 if (!ropts) 999 printf(", "); 1000 printf("if-bound"); 1001 ropts = 0; 1002 } 1003 if (r->rule_flag & PFRULE_STATESLOPPY) { 1004 if (!ropts) 1005 printf(", "); 1006 printf("sloppy"); 1007 ropts = 0; 1008 } 1009 if (r->rule_flag & PFRULE_PFLOW) { 1010 if (!ropts) 1011 printf(", "); 1012 printf("pflow"); 1013 ropts = 0; 1014 } 1015 for (i = 0; i < PFTM_MAX; ++i) 1016 if (r->timeout[i]) { 1017 int j; 1018 1019 if (!ropts) 1020 printf(", "); 1021 ropts = 0; 1022 for (j = 0; pf_timeouts[j].name != NULL; 1023 ++j) 1024 if (pf_timeouts[j].timeout == i) 1025 break; 1026 printf("%s %u", pf_timeouts[j].name == NULL ? 1027 "inv.timeout" : pf_timeouts[j].name, 1028 r->timeout[i]); 1029 } 1030 printf(")"); 1031 } 1032 1033 if (r->rule_flag & PFRULE_FRAGMENT) 1034 printf(" fragment"); 1035 1036 if (r->scrub_flags & PFSTATE_SCRUBMASK || r->min_ttl || r->max_mss) { 1037 printf(" scrub ("); 1038 ropts = 1; 1039 if (r->scrub_flags & PFSTATE_NODF) { 1040 printf("no-df"); 1041 ropts = 0; 1042 } 1043 if (r->scrub_flags & PFSTATE_RANDOMID) { 1044 if (!ropts) 1045 printf(" "); 1046 printf("random-id"); 1047 ropts = 0; 1048 } 1049 if (r->min_ttl) { 1050 if (!ropts) 1051 printf(" "); 1052 printf("min-ttl %d", r->min_ttl); 1053 ropts = 0; 1054 } 1055 if (r->scrub_flags & PFSTATE_SCRUB_TCP) { 1056 if (!ropts) 1057 printf(" "); 1058 printf("reassemble tcp"); 1059 ropts = 0; 1060 } 1061 if (r->max_mss) { 1062 if (!ropts) 1063 printf(" "); 1064 printf("max-mss %d", r->max_mss); 1065 ropts = 0; 1066 } 1067 printf(")"); 1068 } 1069 1070 if (r->allow_opts) 1071 printf(" allow-opts"); 1072 if (r->label[0]) 1073 printf(" label \"%s\"", r->label); 1074 if (r->rule_flag & PFRULE_ONCE) 1075 printf(" once"); 1076 if (r->tagname[0]) 1077 printf(" tag %s", r->tagname); 1078 if (r->match_tagname[0]) { 1079 if (r->match_tag_not) 1080 printf(" !"); 1081 printf(" tagged %s", r->match_tagname); 1082 } 1083 if (r->rtableid != -1) 1084 printf(" rtable %u", r->rtableid); 1085 switch (r->divert.type) { 1086 case PF_DIVERT_NONE: 1087 break; 1088 case PF_DIVERT_TO: { 1089 /* XXX cut&paste from print_addr */ 1090 char buf[48]; 1091 1092 printf(" divert-to "); 1093 if (inet_ntop(r->af, &r->divert.addr, buf, sizeof(buf)) == NULL) 1094 printf("?"); 1095 else 1096 printf("%s", buf); 1097 printf(" port %u", ntohs(r->divert.port)); 1098 break; 1099 } 1100 case PF_DIVERT_REPLY: 1101 printf(" divert-reply"); 1102 break; 1103 case PF_DIVERT_PACKET: 1104 printf(" divert-packet port %u", ntohs(r->divert.port)); 1105 break; 1106 default: 1107 printf(" divert ???"); 1108 break; 1109 } 1110 1111 if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE && 1112 r->rule_flag & PFRULE_AFTO) { 1113 printf(" af-to %s from ", r->naf == AF_INET ? "inet" : "inet6"); 1114 print_pool(&r->nat, r->nat.proxy_port[0], 1115 r->nat.proxy_port[1], r->naf ? r->naf : r->af, 1116 PF_POOL_NAT, verbose); 1117 if (r->rdr.addr.type != PF_ADDR_NONE) { 1118 printf(" to "); 1119 print_pool(&r->rdr, r->rdr.proxy_port[0], 1120 r->rdr.proxy_port[1], r->naf ? r->naf : r->af, 1121 PF_POOL_RDR, verbose); 1122 } 1123 } else if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE) { 1124 printf (" nat-to "); 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 } else if (!anchor_call[0] && r->rdr.addr.type != PF_ADDR_NONE) { 1129 printf (" rdr-to "); 1130 print_pool(&r->rdr, r->rdr.proxy_port[0], 1131 r->rdr.proxy_port[1], r->af, PF_POOL_RDR, verbose); 1132 } 1133 if (r->rt) { 1134 if (r->rt == PF_ROUTETO) 1135 printf(" route-to"); 1136 else if (r->rt == PF_REPLYTO) 1137 printf(" reply-to"); 1138 else if (r->rt == PF_DUPTO) 1139 printf(" dup-to"); 1140 printf(" "); 1141 print_pool(&r->route, 0, 0, r->af, PF_POOL_ROUTE, verbose); 1142 } 1143 } 1144 1145 void 1146 print_tabledef(const char *name, int flags, int addrs, 1147 struct node_tinithead *nodes) 1148 { 1149 struct node_tinit *ti, *nti; 1150 struct node_host *h; 1151 1152 printf("table <%s>", name); 1153 if (flags & PFR_TFLAG_CONST) 1154 printf(" const"); 1155 if (flags & PFR_TFLAG_PERSIST) 1156 printf(" persist"); 1157 if (flags & PFR_TFLAG_COUNTERS) 1158 printf(" counters"); 1159 SIMPLEQ_FOREACH(ti, nodes, entries) { 1160 if (ti->file) { 1161 printf(" file \"%s\"", ti->file); 1162 continue; 1163 } 1164 printf(" {"); 1165 for (;;) { 1166 for (h = ti->host; h != NULL; h = h->next) { 1167 printf(h->not ? " !" : " "); 1168 print_addr(&h->addr, h->af, 0); 1169 if (h->ifname) 1170 printf("@%s", h->ifname); 1171 } 1172 nti = SIMPLEQ_NEXT(ti, entries); 1173 if (nti != NULL && nti->file == NULL) 1174 ti = nti; /* merge lists */ 1175 else 1176 break; 1177 } 1178 printf(" }"); 1179 } 1180 if (addrs && SIMPLEQ_EMPTY(nodes)) 1181 printf(" { }"); 1182 printf("\n"); 1183 } 1184 1185 void 1186 print_bwspec(const char *prefix, struct pf_queue_bwspec *bw) 1187 { 1188 u_int rate; 1189 int i; 1190 static const char unit[] = " KMG"; 1191 1192 if (bw->percent) 1193 printf("%s%u%%", prefix, bw->percent); 1194 else if (bw->absolute) { 1195 rate = bw->absolute; 1196 for (i = 0; rate >= 1000 && i <= 3 && (rate % 1000 == 0); i++) 1197 rate /= 1000; 1198 printf("%s%u%c", prefix, rate, unit[i]); 1199 } 1200 } 1201 1202 void 1203 print_scspec(const char *prefix, struct pf_queue_scspec *sc) 1204 { 1205 print_bwspec(prefix, &sc->m2); 1206 if (sc->d) { 1207 printf(" burst "); 1208 print_bwspec("", &sc->m1); 1209 printf(" for %ums", sc->d); 1210 } 1211 } 1212 1213 void 1214 print_queuespec(struct pf_queuespec *q) 1215 { 1216 printf("queue %s", q->qname); 1217 if (q->parent[0]) 1218 printf(" parent %s", q->parent); 1219 else if (q->ifname[0]) 1220 printf(" on %s", q->ifname); 1221 if (q->flags & PFQS_FLOWQUEUE) { 1222 printf(" flows %u", q->flowqueue.flows); 1223 if (q->flowqueue.quantum > 0) 1224 printf(" quantum %u", q->flowqueue.quantum); 1225 if (q->flowqueue.interval > 0) 1226 printf(" interval %ums", 1227 q->flowqueue.interval / 1000000); 1228 if (q->flowqueue.target > 0) 1229 printf(" target %ums", 1230 q->flowqueue.target / 1000000); 1231 } 1232 if (q->linkshare.m1.absolute || q->linkshare.m2.absolute) { 1233 print_scspec(" bandwidth ", &q->linkshare); 1234 print_scspec(", min ", &q->realtime); 1235 print_scspec(", max ", &q->upperlimit); 1236 } 1237 if (q->flags & PFQS_DEFAULT) 1238 printf(" default"); 1239 if (q->qlimit) 1240 printf(" qlimit %u", q->qlimit); 1241 printf("\n"); 1242 } 1243 1244 int 1245 parse_flags(char *s) 1246 { 1247 char *p, *q; 1248 u_int8_t f = 0; 1249 1250 for (p = s; *p; p++) { 1251 if ((q = strchr(tcpflags, *p)) == NULL) 1252 return -1; 1253 else 1254 f |= 1 << (q - tcpflags); 1255 } 1256 return (f ? f : PF_TH_ALL); 1257 } 1258 1259 void 1260 set_ipmask(struct node_host *h, u_int8_t b) 1261 { 1262 struct pf_addr *m, *n; 1263 int i, j = 0; 1264 1265 m = &h->addr.v.a.mask; 1266 memset(m, 0, sizeof(*m)); 1267 1268 while (b >= 32) { 1269 m->addr32[j++] = 0xffffffff; 1270 b -= 32; 1271 } 1272 for (i = 31; i > 31-b; --i) 1273 m->addr32[j] |= (1 << i); 1274 if (b) 1275 m->addr32[j] = htonl(m->addr32[j]); 1276 1277 /* Mask off bits of the address that will never be used. */ 1278 n = &h->addr.v.a.addr; 1279 if (h->addr.type == PF_ADDR_ADDRMASK) 1280 for (i = 0; i < 4; i++) 1281 n->addr32[i] = n->addr32[i] & m->addr32[i]; 1282 } 1283 1284 int 1285 check_netmask(struct node_host *h, sa_family_t af) 1286 { 1287 struct node_host *n = NULL; 1288 struct pf_addr *m; 1289 1290 for (n = h; n != NULL; n = n->next) { 1291 if (h->addr.type == PF_ADDR_TABLE) 1292 continue; 1293 m = &h->addr.v.a.mask; 1294 /* netmasks > 32 bit are invalid on v4 */ 1295 if (af == AF_INET && 1296 (m->addr32[1] || m->addr32[2] || m->addr32[3])) { 1297 fprintf(stderr, "netmask %u invalid for IPv4 address\n", 1298 unmask(m, AF_INET6)); 1299 return (1); 1300 } 1301 } 1302 return (0); 1303 } 1304 1305 struct node_host * 1306 gen_dynnode(struct node_host *h, sa_family_t af) 1307 { 1308 struct node_host *n; 1309 struct pf_addr *m; 1310 1311 if (h->addr.type != PF_ADDR_DYNIFTL) 1312 return (NULL); 1313 1314 if ((n = calloc(1, sizeof(*n))) == NULL) 1315 return (NULL); 1316 bcopy(h, n, sizeof(*n)); 1317 n->ifname = NULL; 1318 n->next = NULL; 1319 n->tail = NULL; 1320 1321 /* fix up netmask */ 1322 m = &n->addr.v.a.mask; 1323 if (af == AF_INET && unmask(m, AF_INET6) > 32) 1324 set_ipmask(n, 32); 1325 1326 return (n); 1327 } 1328 1329 /* interface lookup routines */ 1330 1331 struct node_host *iftab; 1332 1333 void 1334 ifa_load(void) 1335 { 1336 struct ifaddrs *ifap, *ifa; 1337 struct node_host *n = NULL, *h = NULL; 1338 1339 if (getifaddrs(&ifap) < 0) 1340 err(1, "getifaddrs"); 1341 1342 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 1343 if (!(ifa->ifa_addr->sa_family == AF_INET || 1344 ifa->ifa_addr->sa_family == AF_INET6 || 1345 ifa->ifa_addr->sa_family == AF_LINK)) 1346 continue; 1347 n = calloc(1, sizeof(struct node_host)); 1348 if (n == NULL) 1349 err(1, "address: calloc"); 1350 n->af = ifa->ifa_addr->sa_family; 1351 n->ifa_flags = ifa->ifa_flags; 1352 #ifdef __KAME__ 1353 if (n->af == AF_INET6 && 1354 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *) 1355 ifa->ifa_addr)->sin6_addr) && 1356 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id == 1357 0) { 1358 struct sockaddr_in6 *sin6; 1359 1360 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; 1361 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr[2] << 8 | 1362 sin6->sin6_addr.s6_addr[3]; 1363 sin6->sin6_addr.s6_addr[2] = 0; 1364 sin6->sin6_addr.s6_addr[3] = 0; 1365 } 1366 #endif 1367 n->ifindex = 0; 1368 if (n->af == AF_INET) { 1369 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in *) 1370 ifa->ifa_addr)->sin_addr.s_addr, 1371 sizeof(struct in_addr)); 1372 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in *) 1373 ifa->ifa_netmask)->sin_addr.s_addr, 1374 sizeof(struct in_addr)); 1375 if (ifa->ifa_broadaddr != NULL) 1376 memcpy(&n->bcast, &((struct sockaddr_in *) 1377 ifa->ifa_broadaddr)->sin_addr.s_addr, 1378 sizeof(struct in_addr)); 1379 if (ifa->ifa_dstaddr != NULL) 1380 memcpy(&n->peer, &((struct sockaddr_in *) 1381 ifa->ifa_dstaddr)->sin_addr.s_addr, 1382 sizeof(struct in_addr)); 1383 } else if (n->af == AF_INET6) { 1384 memcpy(&n->addr.v.a.addr, &((struct sockaddr_in6 *) 1385 ifa->ifa_addr)->sin6_addr.s6_addr, 1386 sizeof(struct in6_addr)); 1387 memcpy(&n->addr.v.a.mask, &((struct sockaddr_in6 *) 1388 ifa->ifa_netmask)->sin6_addr.s6_addr, 1389 sizeof(struct in6_addr)); 1390 if (ifa->ifa_broadaddr != NULL) 1391 memcpy(&n->bcast, &((struct sockaddr_in6 *) 1392 ifa->ifa_broadaddr)->sin6_addr.s6_addr, 1393 sizeof(struct in6_addr)); 1394 if (ifa->ifa_dstaddr != NULL) 1395 memcpy(&n->peer, &((struct sockaddr_in6 *) 1396 ifa->ifa_dstaddr)->sin6_addr.s6_addr, 1397 sizeof(struct in6_addr)); 1398 n->ifindex = ((struct sockaddr_in6 *) 1399 ifa->ifa_addr)->sin6_scope_id; 1400 } else if (n->af == AF_LINK) { 1401 n->ifindex = ((struct sockaddr_dl *) 1402 ifa->ifa_addr)->sdl_index; 1403 } 1404 if ((n->ifname = strdup(ifa->ifa_name)) == NULL) 1405 err(1, "ifa_load: strdup"); 1406 n->next = NULL; 1407 n->tail = n; 1408 if (h == NULL) 1409 h = n; 1410 else { 1411 h->tail->next = n; 1412 h->tail = n; 1413 } 1414 } 1415 1416 iftab = h; 1417 freeifaddrs(ifap); 1418 } 1419 1420 unsigned int 1421 ifa_nametoindex(const char *ifa_name) 1422 { 1423 struct node_host *p; 1424 1425 for (p = iftab; p; p = p->next) { 1426 if (p->af == AF_LINK && strcmp(p->ifname, ifa_name) == 0) 1427 return (p->ifindex); 1428 } 1429 errno = ENXIO; 1430 return (0); 1431 } 1432 1433 char * 1434 ifa_indextoname(unsigned int ifindex, char *ifa_name) 1435 { 1436 struct node_host *p; 1437 1438 for (p = iftab; p; p = p->next) { 1439 if (p->af == AF_LINK && ifindex == p->ifindex) { 1440 strlcpy(ifa_name, p->ifname, IFNAMSIZ); 1441 return (ifa_name); 1442 } 1443 } 1444 errno = ENXIO; 1445 return (NULL); 1446 } 1447 1448 struct node_host * 1449 ifa_exists(const char *ifa_name) 1450 { 1451 struct node_host *n; 1452 struct ifgroupreq ifgr; 1453 int s; 1454 1455 if (iftab == NULL) 1456 ifa_load(); 1457 1458 /* check whether this is a group */ 1459 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 1460 err(1, "socket"); 1461 bzero(&ifgr, sizeof(ifgr)); 1462 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1463 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == 0) { 1464 /* fake a node_host */ 1465 if ((n = calloc(1, sizeof(*n))) == NULL) 1466 err(1, "calloc"); 1467 if ((n->ifname = strdup(ifa_name)) == NULL) 1468 err(1, "strdup"); 1469 close(s); 1470 return (n); 1471 } 1472 close(s); 1473 1474 for (n = iftab; n; n = n->next) { 1475 if (n->af == AF_LINK && !strncmp(n->ifname, ifa_name, IFNAMSIZ)) 1476 return (n); 1477 } 1478 1479 return (NULL); 1480 } 1481 1482 struct node_host * 1483 ifa_grouplookup(const char *ifa_name, int flags) 1484 { 1485 struct ifg_req *ifg; 1486 struct ifgroupreq ifgr; 1487 int s, len; 1488 struct node_host *n, *h = NULL; 1489 1490 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1) 1491 err(1, "socket"); 1492 bzero(&ifgr, sizeof(ifgr)); 1493 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name)); 1494 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) { 1495 close(s); 1496 return (NULL); 1497 } 1498 1499 len = ifgr.ifgr_len; 1500 if ((ifgr.ifgr_groups = calloc(1, len)) == NULL) 1501 err(1, "calloc"); 1502 if (ioctl(s, SIOCGIFGMEMB, (caddr_t)&ifgr) == -1) 1503 err(1, "SIOCGIFGMEMB"); 1504 1505 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(struct ifg_req); 1506 ifg++) { 1507 len -= sizeof(struct ifg_req); 1508 if ((n = ifa_lookup(ifg->ifgrq_member, flags)) == NULL) 1509 continue; 1510 if (h == NULL) 1511 h = n; 1512 else { 1513 h->tail->next = n; 1514 h->tail = n->tail; 1515 } 1516 } 1517 free(ifgr.ifgr_groups); 1518 close(s); 1519 1520 return (h); 1521 } 1522 1523 struct node_host * 1524 ifa_lookup(const char *ifa_name, int flags) 1525 { 1526 struct node_host *p = NULL, *h = NULL, *n = NULL; 1527 int got4 = 0, got6 = 0; 1528 const char *last_if = NULL; 1529 1530 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL) 1531 return (h); 1532 1533 if (!strncmp(ifa_name, "self", IFNAMSIZ)) 1534 ifa_name = NULL; 1535 1536 if (iftab == NULL) 1537 ifa_load(); 1538 1539 for (p = iftab; p; p = p->next) { 1540 if (ifa_skip_if(ifa_name, p)) 1541 continue; 1542 if ((flags & PFI_AFLAG_BROADCAST) && p->af != AF_INET) 1543 continue; 1544 if ((flags & PFI_AFLAG_BROADCAST) && 1545 !(p->ifa_flags & IFF_BROADCAST)) 1546 continue; 1547 if ((flags & PFI_AFLAG_BROADCAST) && p->bcast.v4.s_addr == 0) 1548 continue; 1549 if ((flags & PFI_AFLAG_PEER) && 1550 !(p->ifa_flags & IFF_POINTOPOINT)) 1551 continue; 1552 if ((flags & PFI_AFLAG_NETWORK) && p->ifindex > 0) 1553 continue; 1554 if (last_if == NULL || strcmp(last_if, p->ifname)) 1555 got4 = got6 = 0; 1556 last_if = p->ifname; 1557 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET && got4) 1558 continue; 1559 if ((flags & PFI_AFLAG_NOALIAS) && p->af == AF_INET6 && got6) 1560 continue; 1561 if (p->af == AF_INET) 1562 got4 = 1; 1563 else 1564 got6 = 1; 1565 n = calloc(1, sizeof(struct node_host)); 1566 if (n == NULL) 1567 err(1, "address: calloc"); 1568 n->af = p->af; 1569 if (flags & PFI_AFLAG_BROADCAST) 1570 memcpy(&n->addr.v.a.addr, &p->bcast, 1571 sizeof(struct pf_addr)); 1572 else if (flags & PFI_AFLAG_PEER) 1573 memcpy(&n->addr.v.a.addr, &p->peer, 1574 sizeof(struct pf_addr)); 1575 else 1576 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr, 1577 sizeof(struct pf_addr)); 1578 if (flags & PFI_AFLAG_NETWORK) 1579 set_ipmask(n, unmask(&p->addr.v.a.mask, n->af)); 1580 else { 1581 if (n->af == AF_INET) { 1582 if (p->ifa_flags & IFF_LOOPBACK && 1583 p->ifa_flags & IFF_LINK1) 1584 memcpy(&n->addr.v.a.mask, 1585 &p->addr.v.a.mask, 1586 sizeof(struct pf_addr)); 1587 else 1588 set_ipmask(n, 32); 1589 } else 1590 set_ipmask(n, 128); 1591 } 1592 n->ifindex = p->ifindex; 1593 1594 n->next = NULL; 1595 n->tail = n; 1596 if (h == NULL) 1597 h = n; 1598 else { 1599 h->tail->next = n; 1600 h->tail = n; 1601 } 1602 } 1603 return (h); 1604 } 1605 1606 int 1607 ifa_skip_if(const char *filter, struct node_host *p) 1608 { 1609 int n; 1610 1611 if (p->af != AF_INET && p->af != AF_INET6) 1612 return (1); 1613 if (filter == NULL || !*filter) 1614 return (0); 1615 if (!strcmp(p->ifname, filter)) 1616 return (0); /* exact match */ 1617 n = strlen(filter); 1618 if (n < 1 || n >= IFNAMSIZ) 1619 return (1); /* sanity check */ 1620 if (filter[n-1] >= '0' && filter[n-1] <= '9') 1621 return (1); /* only do exact match in that case */ 1622 if (strncmp(p->ifname, filter, n)) 1623 return (1); /* prefix doesn't match */ 1624 return (p->ifname[n] < '0' || p->ifname[n] > '9'); 1625 } 1626 1627 struct node_host * 1628 host(const char *s, int opts) 1629 { 1630 struct node_host *h = NULL, *n; 1631 int mask = -1, v4mask = 32, v6mask = 128, cont = 1; 1632 char *p, *q, *r, *ps, *if_name; 1633 1634 if ((ps = strdup(s)) == NULL) 1635 err(1, "host: strdup"); 1636 1637 if ((if_name = strrchr(ps, '@')) != NULL) { 1638 if_name[0] = '\0'; 1639 if_name++; 1640 } 1641 1642 if ((p = strrchr(ps, '/')) != NULL) { 1643 if ((r = strdup(ps)) == NULL) 1644 err(1, "host: strdup"); 1645 mask = strtol(p+1, &q, 0); 1646 if (!q || *q || mask > 128 || q == (p+1)) { 1647 fprintf(stderr, "invalid netmask '%s'\n", p); 1648 free(r); 1649 free(ps); 1650 return (NULL); 1651 } 1652 p[0] = '\0'; 1653 v4mask = v6mask = mask; 1654 } else 1655 r = ps; 1656 1657 /* interface with this name exists? */ 1658 if (cont && (h = host_if(ps, mask)) != NULL) 1659 cont = 0; 1660 1661 /* IPv4 address? */ 1662 if (cont && (h = host_v4(r, mask)) != NULL) 1663 cont = 0; 1664 if (r != ps) 1665 free(r); 1666 1667 /* IPv6 address? */ 1668 if (cont && (h = host_v6(ps, v6mask)) != NULL) 1669 cont = 0; 1670 1671 /* dns lookup */ 1672 if (cont && (h = host_dns(ps, v4mask, v6mask, 1673 (opts & PF_OPT_NODNS))) != NULL) 1674 cont = 0; 1675 1676 if (if_name && if_name[0]) 1677 for (n = h; n != NULL; n = n->next) 1678 if ((n->ifname = strdup(if_name)) == NULL) 1679 err(1, "host: strdup"); 1680 1681 free(ps); /* after we copy the name out */ 1682 if (h == NULL || cont == 1) { 1683 fprintf(stderr, "no IP address found for %s\n", s); 1684 return (NULL); 1685 } 1686 for (n = h; n != NULL; n = n->next) { 1687 n->addr.type = PF_ADDR_ADDRMASK; 1688 n->weight = 0; 1689 } 1690 return (h); 1691 } 1692 1693 struct node_host * 1694 host_if(const char *s, int mask) 1695 { 1696 struct node_host *n, *h = NULL; 1697 char *p, *ps; 1698 int flags = 0; 1699 1700 if ((ps = strdup(s)) == NULL) 1701 err(1, "host_if: strdup"); 1702 while ((p = strrchr(ps, ':')) != NULL) { 1703 if (!strcmp(p+1, "network")) 1704 flags |= PFI_AFLAG_NETWORK; 1705 else if (!strcmp(p+1, "broadcast")) 1706 flags |= PFI_AFLAG_BROADCAST; 1707 else if (!strcmp(p+1, "peer")) 1708 flags |= PFI_AFLAG_PEER; 1709 else if (!strcmp(p+1, "0")) 1710 flags |= PFI_AFLAG_NOALIAS; 1711 else { 1712 free(ps); 1713 return (NULL); 1714 } 1715 *p = '\0'; 1716 } 1717 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) { /* Yep! */ 1718 fprintf(stderr, "illegal combination of interface modifiers\n"); 1719 free(ps); 1720 return (NULL); 1721 } 1722 if ((flags & (PFI_AFLAG_NETWORK|PFI_AFLAG_BROADCAST)) && mask > -1) { 1723 fprintf(stderr, "network or broadcast lookup, but " 1724 "extra netmask given\n"); 1725 free(ps); 1726 return (NULL); 1727 } 1728 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ)) { 1729 /* interface with this name exists */ 1730 h = ifa_lookup(ps, flags); 1731 for (n = h; n != NULL && mask > -1; n = n->next) 1732 set_ipmask(n, mask); 1733 } 1734 1735 free(ps); 1736 return (h); 1737 } 1738 1739 struct node_host * 1740 host_v4(const char *s, int mask) 1741 { 1742 struct node_host *h = NULL; 1743 struct in_addr ina; 1744 int bits = 32; 1745 1746 memset(&ina, 0, sizeof(struct in_addr)); 1747 if (strrchr(s, '/') != NULL) { 1748 if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1) 1749 return (NULL); 1750 } else { 1751 if (inet_pton(AF_INET, s, &ina) != 1) 1752 return (NULL); 1753 } 1754 1755 h = calloc(1, sizeof(struct node_host)); 1756 if (h == NULL) 1757 err(1, "address: calloc"); 1758 h->ifname = NULL; 1759 h->af = AF_INET; 1760 h->addr.v.a.addr.addr32[0] = ina.s_addr; 1761 set_ipmask(h, bits); 1762 h->next = NULL; 1763 h->tail = h; 1764 1765 return (h); 1766 } 1767 1768 struct node_host * 1769 host_v6(const char *s, int mask) 1770 { 1771 struct addrinfo hints, *res; 1772 struct node_host *h = NULL; 1773 1774 memset(&hints, 0, sizeof(hints)); 1775 hints.ai_family = AF_INET6; 1776 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1777 hints.ai_flags = AI_NUMERICHOST; 1778 if (getaddrinfo(s, "0", &hints, &res) == 0) { 1779 h = calloc(1, sizeof(struct node_host)); 1780 if (h == NULL) 1781 err(1, "address: calloc"); 1782 h->ifname = NULL; 1783 h->af = AF_INET6; 1784 memcpy(&h->addr.v.a.addr, 1785 &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr, 1786 sizeof(h->addr.v.a.addr)); 1787 h->ifindex = 1788 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id; 1789 set_ipmask(h, mask); 1790 freeaddrinfo(res); 1791 h->next = NULL; 1792 h->tail = h; 1793 } 1794 1795 return (h); 1796 } 1797 1798 struct node_host * 1799 host_dns(const char *s, int v4mask, int v6mask, int numeric) 1800 { 1801 struct addrinfo hints, *res0, *res; 1802 struct node_host *n, *h = NULL; 1803 int error, noalias = 0; 1804 int got4 = 0, got6 = 0; 1805 char *p, *ps; 1806 1807 if ((ps = strdup(s)) == NULL) 1808 err(1, "host_dns: strdup"); 1809 if ((p = strrchr(ps, ':')) != NULL && !strcmp(p, ":0")) { 1810 noalias = 1; 1811 *p = '\0'; 1812 } 1813 memset(&hints, 0, sizeof(hints)); 1814 hints.ai_family = PF_UNSPEC; 1815 hints.ai_socktype = SOCK_STREAM; /* DUMMY */ 1816 if (numeric) 1817 hints.ai_flags = AI_NUMERICHOST; 1818 error = getaddrinfo(ps, NULL, &hints, &res0); 1819 if (error) { 1820 free(ps); 1821 return (h); 1822 } 1823 1824 for (res = res0; res; res = res->ai_next) { 1825 if (res->ai_family != AF_INET && 1826 res->ai_family != AF_INET6) 1827 continue; 1828 if (noalias) { 1829 if (res->ai_family == AF_INET) { 1830 if (got4) 1831 continue; 1832 got4 = 1; 1833 } else { 1834 if (got6) 1835 continue; 1836 got6 = 1; 1837 } 1838 } 1839 n = calloc(1, sizeof(struct node_host)); 1840 if (n == NULL) 1841 err(1, "host_dns: calloc"); 1842 n->ifname = NULL; 1843 n->af = res->ai_family; 1844 if (res->ai_family == AF_INET) { 1845 memcpy(&n->addr.v.a.addr, 1846 &((struct sockaddr_in *) 1847 res->ai_addr)->sin_addr.s_addr, 1848 sizeof(struct in_addr)); 1849 set_ipmask(n, v4mask); 1850 } else { 1851 memcpy(&n->addr.v.a.addr, 1852 &((struct sockaddr_in6 *) 1853 res->ai_addr)->sin6_addr.s6_addr, 1854 sizeof(struct in6_addr)); 1855 n->ifindex = 1856 ((struct sockaddr_in6 *) 1857 res->ai_addr)->sin6_scope_id; 1858 set_ipmask(n, v6mask); 1859 } 1860 n->next = NULL; 1861 n->tail = n; 1862 if (h == NULL) 1863 h = n; 1864 else { 1865 h->tail->next = n; 1866 h->tail = n; 1867 } 1868 } 1869 freeaddrinfo(res0); 1870 free(ps); 1871 1872 return (h); 1873 } 1874 1875 /* 1876 * convert a hostname to a list of addresses and put them in the given buffer. 1877 * test: 1878 * if set to 1, only simple addresses are accepted (no netblock, no "!"). 1879 */ 1880 int 1881 append_addr(struct pfr_buffer *b, char *s, int test, int opts) 1882 { 1883 static int previous = 0; 1884 static int expect = 0; 1885 struct pfr_addr *a; 1886 struct node_host *h, *n; 1887 char *r; 1888 const char *errstr; 1889 int rv, not = 0, i = 0; 1890 u_int16_t weight; 1891 1892 /* skip weight if given */ 1893 if (strcmp(s, "weight") == 0) { 1894 expect = 1; 1895 return (1); /* expecting further call */ 1896 } 1897 1898 /* check if previous host is set */ 1899 if (expect) { 1900 /* parse and append load balancing weight */ 1901 weight = strtonum(s, 1, USHRT_MAX, &errstr); 1902 if (errstr) { 1903 fprintf(stderr, "failed to convert weight %s\n", s); 1904 return (-1); 1905 } 1906 if (previous != -1) { 1907 PFRB_FOREACH(a, b) { 1908 if (++i >= previous) { 1909 a->pfra_weight = weight; 1910 a->pfra_type = PFRKE_COST; 1911 } 1912 } 1913 } 1914 1915 expect = 0; 1916 return (0); 1917 } 1918 1919 for (r = s; *r == '!'; r++) 1920 not = !not; 1921 if ((n = host(r, opts)) == NULL) { 1922 errno = 0; 1923 return (-1); 1924 } 1925 rv = append_addr_host(b, n, test, not); 1926 previous = b->pfrb_size; 1927 do { 1928 h = n; 1929 n = n->next; 1930 free(h); 1931 } while (n != NULL); 1932 return (rv); 1933 } 1934 1935 /* 1936 * same as previous function, but with a pre-parsed input and the ability 1937 * to "negate" the result. Does not free the node_host list. 1938 * not: 1939 * setting it to 1 is equivalent to adding "!" in front of parameter s. 1940 */ 1941 int 1942 append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not) 1943 { 1944 int bits; 1945 struct pfr_addr addr; 1946 1947 do { 1948 bzero(&addr, sizeof(addr)); 1949 addr.pfra_not = n->not ^ not; 1950 addr.pfra_af = n->af; 1951 addr.pfra_net = unmask(&n->addr.v.a.mask, n->af); 1952 if (n->ifname) { 1953 if (strlcpy(addr.pfra_ifname, n->ifname, 1954 sizeof(addr.pfra_ifname)) >= sizeof(addr.pfra_ifname)) 1955 errx(1, "append_addr_host: strlcpy"); 1956 addr.pfra_type = PFRKE_ROUTE; 1957 } 1958 if (n->weight > 0) { 1959 addr.pfra_weight = n->weight; 1960 addr.pfra_type = PFRKE_COST; 1961 } 1962 switch (n->af) { 1963 case AF_INET: 1964 addr.pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32[0]; 1965 bits = 32; 1966 break; 1967 case AF_INET6: 1968 memcpy(&addr.pfra_ip6addr, &n->addr.v.a.addr.v6, 1969 sizeof(struct in6_addr)); 1970 bits = 128; 1971 break; 1972 default: 1973 errno = EINVAL; 1974 return (-1); 1975 } 1976 if ((test && (not || addr.pfra_net != bits)) || 1977 addr.pfra_net > bits) { 1978 errno = EINVAL; 1979 return (-1); 1980 } 1981 if (pfr_buf_add(b, &addr)) 1982 return (-1); 1983 } while ((n = n->next) != NULL); 1984 1985 return (0); 1986 } 1987 1988 int 1989 pfctl_add_trans(struct pfr_buffer *buf, int type, const char *anchor) 1990 { 1991 struct pfioc_trans_e trans; 1992 1993 bzero(&trans, sizeof(trans)); 1994 trans.type = type; 1995 if (strlcpy(trans.anchor, anchor, 1996 sizeof(trans.anchor)) >= sizeof(trans.anchor)) 1997 errx(1, "pfctl_add_trans: strlcpy"); 1998 1999 return pfr_buf_add(buf, &trans); 2000 } 2001 2002 u_int32_t 2003 pfctl_get_ticket(struct pfr_buffer *buf, int type, const char *anchor) 2004 { 2005 struct pfioc_trans_e *p; 2006 2007 PFRB_FOREACH(p, buf) 2008 if (type == p->type && !strcmp(anchor, p->anchor)) 2009 return (p->ticket); 2010 errx(1, "pfctl_get_ticket: assertion failed"); 2011 } 2012 2013 int 2014 pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from) 2015 { 2016 struct pfioc_trans trans; 2017 2018 bzero(&trans, sizeof(trans)); 2019 trans.size = buf->pfrb_size - from; 2020 trans.esize = sizeof(struct pfioc_trans_e); 2021 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from; 2022 return ioctl(dev, cmd, &trans); 2023 } 2024