1 /* $OpenBSD: pfctl.c,v 1.278 2008/08/31 20:18:17 jmc Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2001 Daniel Hartmeier 7 * Copyright (c) 2002,2003 Henning Brauer 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 14 * - Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * - Redistributions in binary form must reproduce the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer in the documentation and/or other materials provided 19 * with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 */ 35 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 #define PFIOC_USE_LATEST 40 41 #include <sys/types.h> 42 #include <sys/ioctl.h> 43 #include <sys/nv.h> 44 #include <sys/socket.h> 45 #include <sys/stat.h> 46 #include <sys/endian.h> 47 48 #include <net/if.h> 49 #include <netinet/in.h> 50 #include <net/pfvar.h> 51 #include <arpa/inet.h> 52 #include <net/altq/altq.h> 53 #include <sys/sysctl.h> 54 55 #include <err.h> 56 #include <errno.h> 57 #include <fcntl.h> 58 #include <libpfctl.h> 59 #include <limits.h> 60 #include <netdb.h> 61 #include <stdint.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <unistd.h> 66 67 #include "pfctl_parser.h" 68 #include "pfctl.h" 69 70 void usage(void); 71 int pfctl_enable(int, int); 72 int pfctl_disable(int, int); 73 int pfctl_clear_stats(int, int); 74 int pfctl_get_skip_ifaces(void); 75 int pfctl_check_skip_ifaces(char *); 76 int pfctl_adjust_skip_ifaces(struct pfctl *); 77 int pfctl_clear_interface_flags(int, int); 78 int pfctl_flush_eth_rules(int, int, char *); 79 int pfctl_flush_rules(int, int, char *); 80 int pfctl_flush_nat(int, int, char *); 81 int pfctl_clear_altq(int, int); 82 int pfctl_clear_src_nodes(int, int); 83 int pfctl_clear_iface_states(int, const char *, int); 84 void pfctl_addrprefix(char *, struct pf_addr *); 85 int pfctl_kill_src_nodes(int, const char *, int); 86 int pfctl_net_kill_states(int, const char *, int); 87 int pfctl_gateway_kill_states(int, const char *, int); 88 int pfctl_label_kill_states(int, const char *, int); 89 int pfctl_id_kill_states(int, const char *, int); 90 void pfctl_init_options(struct pfctl *); 91 int pfctl_load_options(struct pfctl *); 92 int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int); 93 int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int); 94 int pfctl_load_debug(struct pfctl *, unsigned int); 95 int pfctl_load_logif(struct pfctl *, char *); 96 int pfctl_load_hostid(struct pfctl *, u_int32_t); 97 int pfctl_load_syncookies(struct pfctl *, u_int8_t); 98 int pfctl_get_pool(int, struct pfctl_pool *, u_int32_t, u_int32_t, int, 99 char *); 100 void pfctl_print_eth_rule_counters(struct pfctl_eth_rule *, int); 101 void pfctl_print_rule_counters(struct pfctl_rule *, int); 102 int pfctl_show_eth_rules(int, char *, int, enum pfctl_show, char *, int); 103 int pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int); 104 int pfctl_show_nat(int, char *, int, char *, int); 105 int pfctl_show_src_nodes(int, int); 106 int pfctl_show_states(int, const char *, int); 107 int pfctl_show_status(int, int); 108 int pfctl_show_running(int); 109 int pfctl_show_timeouts(int, int); 110 int pfctl_show_limits(int, int); 111 void pfctl_debug(int, u_int32_t, int); 112 int pfctl_test_altqsupport(int, int); 113 int pfctl_show_anchors(int, int, char *); 114 int pfctl_show_eth_anchors(int, int, char *); 115 int pfctl_ruleset_trans(struct pfctl *, char *, struct pfctl_anchor *, bool); 116 int pfctl_eth_ruleset_trans(struct pfctl *, char *, 117 struct pfctl_eth_anchor *); 118 int pfctl_load_eth_ruleset(struct pfctl *, char *, 119 struct pfctl_eth_ruleset *, int); 120 int pfctl_load_eth_rule(struct pfctl *, char *, struct pfctl_eth_rule *, 121 int); 122 int pfctl_load_ruleset(struct pfctl *, char *, 123 struct pfctl_ruleset *, int, int); 124 int pfctl_load_rule(struct pfctl *, char *, struct pfctl_rule *, int); 125 const char *pfctl_lookup_option(char *, const char * const *); 126 127 static struct pfctl_anchor_global pf_anchors; 128 struct pfctl_anchor pf_main_anchor; 129 struct pfctl_eth_anchor pf_eth_main_anchor; 130 static struct pfr_buffer skip_b; 131 132 static const char *clearopt; 133 static char *rulesopt; 134 static const char *showopt; 135 static const char *debugopt; 136 static char *anchoropt; 137 static const char *optiopt = NULL; 138 static const char *pf_device = "/dev/pf"; 139 static char *ifaceopt; 140 static char *tableopt; 141 static const char *tblcmdopt; 142 static int src_node_killers; 143 static char *src_node_kill[2]; 144 static int state_killers; 145 static char *state_kill[2]; 146 int loadopt; 147 int altqsupport; 148 149 int dev = -1; 150 static int first_title = 1; 151 static int labels = 0; 152 153 #define INDENT(d, o) do { \ 154 if (o) { \ 155 int i; \ 156 for (i=0; i < d; i++) \ 157 printf(" "); \ 158 } \ 159 } while (0); \ 160 161 162 static const struct { 163 const char *name; 164 int index; 165 } pf_limits[] = { 166 { "states", PF_LIMIT_STATES }, 167 { "src-nodes", PF_LIMIT_SRC_NODES }, 168 { "frags", PF_LIMIT_FRAGS }, 169 { "table-entries", PF_LIMIT_TABLE_ENTRIES }, 170 { NULL, 0 } 171 }; 172 173 struct pf_hint { 174 const char *name; 175 int timeout; 176 }; 177 static const struct pf_hint pf_hint_normal[] = { 178 { "tcp.first", 2 * 60 }, 179 { "tcp.opening", 30 }, 180 { "tcp.established", 24 * 60 * 60 }, 181 { "tcp.closing", 15 * 60 }, 182 { "tcp.finwait", 45 }, 183 { "tcp.closed", 90 }, 184 { "tcp.tsdiff", 30 }, 185 { NULL, 0 } 186 }; 187 static const struct pf_hint pf_hint_satellite[] = { 188 { "tcp.first", 3 * 60 }, 189 { "tcp.opening", 30 + 5 }, 190 { "tcp.established", 24 * 60 * 60 }, 191 { "tcp.closing", 15 * 60 + 5 }, 192 { "tcp.finwait", 45 + 5 }, 193 { "tcp.closed", 90 + 5 }, 194 { "tcp.tsdiff", 60 }, 195 { NULL, 0 } 196 }; 197 static const struct pf_hint pf_hint_conservative[] = { 198 { "tcp.first", 60 * 60 }, 199 { "tcp.opening", 15 * 60 }, 200 { "tcp.established", 5 * 24 * 60 * 60 }, 201 { "tcp.closing", 60 * 60 }, 202 { "tcp.finwait", 10 * 60 }, 203 { "tcp.closed", 3 * 60 }, 204 { "tcp.tsdiff", 60 }, 205 { NULL, 0 } 206 }; 207 static const struct pf_hint pf_hint_aggressive[] = { 208 { "tcp.first", 30 }, 209 { "tcp.opening", 5 }, 210 { "tcp.established", 5 * 60 * 60 }, 211 { "tcp.closing", 60 }, 212 { "tcp.finwait", 30 }, 213 { "tcp.closed", 30 }, 214 { "tcp.tsdiff", 10 }, 215 { NULL, 0 } 216 }; 217 218 static const struct { 219 const char *name; 220 const struct pf_hint *hint; 221 } pf_hints[] = { 222 { "normal", pf_hint_normal }, 223 { "satellite", pf_hint_satellite }, 224 { "high-latency", pf_hint_satellite }, 225 { "conservative", pf_hint_conservative }, 226 { "aggressive", pf_hint_aggressive }, 227 { NULL, NULL } 228 }; 229 230 static const char * const clearopt_list[] = { 231 "nat", "queue", "rules", "Sources", 232 "states", "info", "Tables", "osfp", "all", 233 "ethernet", NULL 234 }; 235 236 static const char * const showopt_list[] = { 237 "ether", "nat", "queue", "rules", "Anchors", "Sources", "states", 238 "info", "Interfaces", "labels", "timeouts", "memory", "Tables", 239 "osfp", "Running", "all", NULL 240 }; 241 242 static const char * const tblcmdopt_list[] = { 243 "kill", "flush", "add", "delete", "load", "replace", "show", 244 "test", "zero", "expire", NULL 245 }; 246 247 static const char * const debugopt_list[] = { 248 "none", "urgent", "misc", "loud", NULL 249 }; 250 251 static const char * const optiopt_list[] = { 252 "none", "basic", "profile", NULL 253 }; 254 255 void 256 usage(void) 257 { 258 extern char *__progname; 259 260 fprintf(stderr, 261 "usage: %s [-AdeghMmNnOPqRrvz] [-a anchor] [-D macro=value] [-F modifier]\n" 262 "\t[-f file] [-i interface] [-K host | network]\n" 263 "\t[-k host | network | gateway | label | id] [-o level] [-p device]\n" 264 "\t[-s modifier] [-t table -T command [address ...]] [-x level]\n", 265 __progname); 266 267 exit(1); 268 } 269 270 /* 271 * Cache protocol number to name translations. 272 * 273 * Translation is performed a lot e.g., when dumping states and 274 * getprotobynumber is incredibly expensive. 275 * 276 * Note from the getprotobynumber(3) manpage: 277 * <quote> 278 * These functions use a thread-specific data space; if the data is needed 279 * for future use, it should be copied before any subsequent calls overwrite 280 * it. Only the Internet protocols are currently understood. 281 * </quote> 282 * 283 * Consequently we only cache the name and strdup it for safety. 284 * 285 * At the time of writing this comment the last entry in /etc/protocols is: 286 * divert 258 DIVERT # Divert pseudo-protocol [non IANA] 287 */ 288 const char * 289 pfctl_proto2name(int proto) 290 { 291 static const char *pfctl_proto_cache[259]; 292 struct protoent *p; 293 294 if (proto >= nitems(pfctl_proto_cache)) { 295 p = getprotobynumber(proto); 296 if (p == NULL) { 297 return (NULL); 298 } 299 return (p->p_name); 300 } 301 302 if (pfctl_proto_cache[proto] == NULL) { 303 p = getprotobynumber(proto); 304 if (p == NULL) { 305 return (NULL); 306 } 307 pfctl_proto_cache[proto] = strdup(p->p_name); 308 } 309 310 return (pfctl_proto_cache[proto]); 311 } 312 313 int 314 pfctl_enable(int dev, int opts) 315 { 316 if (ioctl(dev, DIOCSTART)) { 317 if (errno == EEXIST) 318 errx(1, "pf already enabled"); 319 else if (errno == ESRCH) 320 errx(1, "pfil registeration failed"); 321 else 322 err(1, "DIOCSTART"); 323 } 324 if ((opts & PF_OPT_QUIET) == 0) 325 fprintf(stderr, "pf enabled\n"); 326 327 if (altqsupport && ioctl(dev, DIOCSTARTALTQ)) 328 if (errno != EEXIST) 329 err(1, "DIOCSTARTALTQ"); 330 331 return (0); 332 } 333 334 int 335 pfctl_disable(int dev, int opts) 336 { 337 if (ioctl(dev, DIOCSTOP)) { 338 if (errno == ENOENT) 339 errx(1, "pf not enabled"); 340 else 341 err(1, "DIOCSTOP"); 342 } 343 if ((opts & PF_OPT_QUIET) == 0) 344 fprintf(stderr, "pf disabled\n"); 345 346 if (altqsupport && ioctl(dev, DIOCSTOPALTQ)) 347 if (errno != ENOENT) 348 err(1, "DIOCSTOPALTQ"); 349 350 return (0); 351 } 352 353 int 354 pfctl_clear_stats(int dev, int opts) 355 { 356 if (ioctl(dev, DIOCCLRSTATUS)) 357 err(1, "DIOCCLRSTATUS"); 358 if ((opts & PF_OPT_QUIET) == 0) 359 fprintf(stderr, "pf: statistics cleared\n"); 360 return (0); 361 } 362 363 int 364 pfctl_get_skip_ifaces(void) 365 { 366 bzero(&skip_b, sizeof(skip_b)); 367 skip_b.pfrb_type = PFRB_IFACES; 368 for (;;) { 369 pfr_buf_grow(&skip_b, skip_b.pfrb_size); 370 skip_b.pfrb_size = skip_b.pfrb_msize; 371 if (pfi_get_ifaces(NULL, skip_b.pfrb_caddr, &skip_b.pfrb_size)) 372 err(1, "pfi_get_ifaces"); 373 if (skip_b.pfrb_size <= skip_b.pfrb_msize) 374 break; 375 } 376 return (0); 377 } 378 379 int 380 pfctl_check_skip_ifaces(char *ifname) 381 { 382 struct pfi_kif *p; 383 struct node_host *h = NULL, *n = NULL; 384 385 PFRB_FOREACH(p, &skip_b) { 386 if (!strcmp(ifname, p->pfik_name) && 387 (p->pfik_flags & PFI_IFLAG_SKIP)) 388 p->pfik_flags &= ~PFI_IFLAG_SKIP; 389 if (!strcmp(ifname, p->pfik_name) && p->pfik_group != NULL) { 390 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL) 391 continue; 392 393 for (n = h; n != NULL; n = n->next) { 394 if (p->pfik_ifp == NULL) 395 continue; 396 if (strncmp(p->pfik_name, ifname, IFNAMSIZ)) 397 continue; 398 399 p->pfik_flags &= ~PFI_IFLAG_SKIP; 400 } 401 } 402 } 403 return (0); 404 } 405 406 int 407 pfctl_adjust_skip_ifaces(struct pfctl *pf) 408 { 409 struct pfi_kif *p, *pp; 410 struct node_host *h = NULL, *n = NULL; 411 412 PFRB_FOREACH(p, &skip_b) { 413 if (p->pfik_group == NULL || !(p->pfik_flags & PFI_IFLAG_SKIP)) 414 continue; 415 416 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0); 417 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL) 418 continue; 419 420 for (n = h; n != NULL; n = n->next) 421 PFRB_FOREACH(pp, &skip_b) { 422 if (pp->pfik_ifp == NULL) 423 continue; 424 425 if (strncmp(pp->pfik_name, n->ifname, IFNAMSIZ)) 426 continue; 427 428 if (!(pp->pfik_flags & PFI_IFLAG_SKIP)) 429 pfctl_set_interface_flags(pf, 430 pp->pfik_name, PFI_IFLAG_SKIP, 1); 431 if (pp->pfik_flags & PFI_IFLAG_SKIP) 432 pp->pfik_flags &= ~PFI_IFLAG_SKIP; 433 } 434 } 435 436 PFRB_FOREACH(p, &skip_b) { 437 if (p->pfik_ifp == NULL || ! (p->pfik_flags & PFI_IFLAG_SKIP)) 438 continue; 439 440 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0); 441 } 442 443 return (0); 444 } 445 446 int 447 pfctl_clear_interface_flags(int dev, int opts) 448 { 449 struct pfioc_iface pi; 450 451 if ((opts & PF_OPT_NOACTION) == 0) { 452 bzero(&pi, sizeof(pi)); 453 pi.pfiio_flags = PFI_IFLAG_SKIP; 454 455 if (ioctl(dev, DIOCCLRIFFLAG, &pi)) 456 err(1, "DIOCCLRIFFLAG"); 457 if ((opts & PF_OPT_QUIET) == 0) 458 fprintf(stderr, "pf: interface flags reset\n"); 459 } 460 return (0); 461 } 462 463 int 464 pfctl_flush_eth_rules(int dev, int opts, char *anchorname) 465 { 466 int ret; 467 468 ret = pfctl_clear_eth_rules(dev, anchorname); 469 if (ret != 0) 470 err(1, "pfctl_clear_eth_rules"); 471 472 if ((opts & PF_OPT_QUIET) == 0) 473 fprintf(stderr, "Ethernet rules cleared\n"); 474 475 return (ret); 476 } 477 478 int 479 pfctl_flush_rules(int dev, int opts, char *anchorname) 480 { 481 int ret; 482 483 ret = pfctl_clear_rules(dev, anchorname); 484 if (ret != 0) 485 err(1, "pfctl_clear_rules"); 486 if ((opts & PF_OPT_QUIET) == 0) 487 fprintf(stderr, "rules cleared\n"); 488 return (0); 489 } 490 491 int 492 pfctl_flush_nat(int dev, int opts, char *anchorname) 493 { 494 int ret; 495 496 ret = pfctl_clear_nat(dev, anchorname); 497 if (ret != 0) 498 err(1, "pfctl_clear_nat"); 499 if ((opts & PF_OPT_QUIET) == 0) 500 fprintf(stderr, "nat cleared\n"); 501 return (0); 502 } 503 504 int 505 pfctl_clear_altq(int dev, int opts) 506 { 507 struct pfr_buffer t; 508 509 if (!altqsupport) 510 return (-1); 511 memset(&t, 0, sizeof(t)); 512 t.pfrb_type = PFRB_TRANS; 513 if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") || 514 pfctl_trans(dev, &t, DIOCXBEGIN, 0) || 515 pfctl_trans(dev, &t, DIOCXCOMMIT, 0)) 516 err(1, "pfctl_clear_altq"); 517 if ((opts & PF_OPT_QUIET) == 0) 518 fprintf(stderr, "altq cleared\n"); 519 return (0); 520 } 521 522 int 523 pfctl_clear_src_nodes(int dev, int opts) 524 { 525 if (ioctl(dev, DIOCCLRSRCNODES)) 526 err(1, "DIOCCLRSRCNODES"); 527 if ((opts & PF_OPT_QUIET) == 0) 528 fprintf(stderr, "source tracking entries cleared\n"); 529 return (0); 530 } 531 532 int 533 pfctl_clear_iface_states(int dev, const char *iface, int opts) 534 { 535 struct pfctl_kill kill; 536 unsigned int killed; 537 538 memset(&kill, 0, sizeof(kill)); 539 if (iface != NULL && strlcpy(kill.ifname, iface, 540 sizeof(kill.ifname)) >= sizeof(kill.ifname)) 541 errx(1, "invalid interface: %s", iface); 542 543 if (opts & PF_OPT_KILLMATCH) 544 kill.kill_match = true; 545 546 if (pfctl_clear_states(dev, &kill, &killed)) 547 err(1, "DIOCCLRSTATES"); 548 if ((opts & PF_OPT_QUIET) == 0) 549 fprintf(stderr, "%d states cleared\n", killed); 550 return (0); 551 } 552 553 void 554 pfctl_addrprefix(char *addr, struct pf_addr *mask) 555 { 556 char *p; 557 const char *errstr; 558 int prefix, ret_ga, q, r; 559 struct addrinfo hints, *res; 560 561 if ((p = strchr(addr, '/')) == NULL) 562 return; 563 564 *p++ = '\0'; 565 prefix = strtonum(p, 0, 128, &errstr); 566 if (errstr) 567 errx(1, "prefix is %s: %s", errstr, p); 568 569 bzero(&hints, sizeof(hints)); 570 /* prefix only with numeric addresses */ 571 hints.ai_flags |= AI_NUMERICHOST; 572 573 if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) { 574 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga)); 575 /* NOTREACHED */ 576 } 577 578 if (res->ai_family == AF_INET && prefix > 32) 579 errx(1, "prefix too long for AF_INET"); 580 else if (res->ai_family == AF_INET6 && prefix > 128) 581 errx(1, "prefix too long for AF_INET6"); 582 583 q = prefix >> 3; 584 r = prefix & 7; 585 switch (res->ai_family) { 586 case AF_INET: 587 bzero(&mask->v4, sizeof(mask->v4)); 588 mask->v4.s_addr = htonl((u_int32_t) 589 (0xffffffffffULL << (32 - prefix))); 590 break; 591 case AF_INET6: 592 bzero(&mask->v6, sizeof(mask->v6)); 593 if (q > 0) 594 memset((void *)&mask->v6, 0xff, q); 595 if (r > 0) 596 *((u_char *)&mask->v6 + q) = 597 (0xff00 >> r) & 0xff; 598 break; 599 } 600 freeaddrinfo(res); 601 } 602 603 int 604 pfctl_kill_src_nodes(int dev, const char *iface, int opts) 605 { 606 struct pfioc_src_node_kill psnk; 607 struct addrinfo *res[2], *resp[2]; 608 struct sockaddr last_src, last_dst; 609 int killed, sources, dests; 610 int ret_ga; 611 612 killed = sources = dests = 0; 613 614 memset(&psnk, 0, sizeof(psnk)); 615 memset(&psnk.psnk_src.addr.v.a.mask, 0xff, 616 sizeof(psnk.psnk_src.addr.v.a.mask)); 617 memset(&last_src, 0xff, sizeof(last_src)); 618 memset(&last_dst, 0xff, sizeof(last_dst)); 619 620 pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask); 621 622 if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) { 623 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga)); 624 /* NOTREACHED */ 625 } 626 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) { 627 if (resp[0]->ai_addr == NULL) 628 continue; 629 /* We get lots of duplicates. Catch the easy ones */ 630 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0) 631 continue; 632 last_src = *(struct sockaddr *)resp[0]->ai_addr; 633 634 psnk.psnk_af = resp[0]->ai_family; 635 sources++; 636 637 if (psnk.psnk_af == AF_INET) 638 psnk.psnk_src.addr.v.a.addr.v4 = 639 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr; 640 else if (psnk.psnk_af == AF_INET6) 641 psnk.psnk_src.addr.v.a.addr.v6 = 642 ((struct sockaddr_in6 *)resp[0]->ai_addr)-> 643 sin6_addr; 644 else 645 errx(1, "Unknown address family %d", psnk.psnk_af); 646 647 if (src_node_killers > 1) { 648 dests = 0; 649 memset(&psnk.psnk_dst.addr.v.a.mask, 0xff, 650 sizeof(psnk.psnk_dst.addr.v.a.mask)); 651 memset(&last_dst, 0xff, sizeof(last_dst)); 652 pfctl_addrprefix(src_node_kill[1], 653 &psnk.psnk_dst.addr.v.a.mask); 654 if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL, 655 &res[1]))) { 656 errx(1, "getaddrinfo: %s", 657 gai_strerror(ret_ga)); 658 /* NOTREACHED */ 659 } 660 for (resp[1] = res[1]; resp[1]; 661 resp[1] = resp[1]->ai_next) { 662 if (resp[1]->ai_addr == NULL) 663 continue; 664 if (psnk.psnk_af != resp[1]->ai_family) 665 continue; 666 667 if (memcmp(&last_dst, resp[1]->ai_addr, 668 sizeof(last_dst)) == 0) 669 continue; 670 last_dst = *(struct sockaddr *)resp[1]->ai_addr; 671 672 dests++; 673 674 if (psnk.psnk_af == AF_INET) 675 psnk.psnk_dst.addr.v.a.addr.v4 = 676 ((struct sockaddr_in *)resp[1]-> 677 ai_addr)->sin_addr; 678 else if (psnk.psnk_af == AF_INET6) 679 psnk.psnk_dst.addr.v.a.addr.v6 = 680 ((struct sockaddr_in6 *)resp[1]-> 681 ai_addr)->sin6_addr; 682 else 683 errx(1, "Unknown address family %d", 684 psnk.psnk_af); 685 686 if (ioctl(dev, DIOCKILLSRCNODES, &psnk)) 687 err(1, "DIOCKILLSRCNODES"); 688 killed += psnk.psnk_killed; 689 } 690 freeaddrinfo(res[1]); 691 } else { 692 if (ioctl(dev, DIOCKILLSRCNODES, &psnk)) 693 err(1, "DIOCKILLSRCNODES"); 694 killed += psnk.psnk_killed; 695 } 696 } 697 698 freeaddrinfo(res[0]); 699 700 if ((opts & PF_OPT_QUIET) == 0) 701 fprintf(stderr, "killed %d src nodes from %d sources and %d " 702 "destinations\n", killed, sources, dests); 703 return (0); 704 } 705 706 int 707 pfctl_net_kill_states(int dev, const char *iface, int opts) 708 { 709 struct pfctl_kill kill; 710 struct addrinfo *res[2], *resp[2]; 711 struct sockaddr last_src, last_dst; 712 unsigned int newkilled; 713 int killed, sources, dests; 714 int ret_ga; 715 716 killed = sources = dests = 0; 717 718 memset(&kill, 0, sizeof(kill)); 719 memset(&kill.src.addr.v.a.mask, 0xff, 720 sizeof(kill.src.addr.v.a.mask)); 721 memset(&last_src, 0xff, sizeof(last_src)); 722 memset(&last_dst, 0xff, sizeof(last_dst)); 723 if (iface != NULL && strlcpy(kill.ifname, iface, 724 sizeof(kill.ifname)) >= sizeof(kill.ifname)) 725 errx(1, "invalid interface: %s", iface); 726 727 pfctl_addrprefix(state_kill[0], &kill.src.addr.v.a.mask); 728 729 if (opts & PF_OPT_KILLMATCH) 730 kill.kill_match = true; 731 732 if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) { 733 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga)); 734 /* NOTREACHED */ 735 } 736 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) { 737 if (resp[0]->ai_addr == NULL) 738 continue; 739 /* We get lots of duplicates. Catch the easy ones */ 740 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0) 741 continue; 742 last_src = *(struct sockaddr *)resp[0]->ai_addr; 743 744 kill.af = resp[0]->ai_family; 745 sources++; 746 747 if (kill.af == AF_INET) 748 kill.src.addr.v.a.addr.v4 = 749 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr; 750 else if (kill.af == AF_INET6) 751 kill.src.addr.v.a.addr.v6 = 752 ((struct sockaddr_in6 *)resp[0]->ai_addr)-> 753 sin6_addr; 754 else 755 errx(1, "Unknown address family %d", kill.af); 756 757 if (state_killers > 1) { 758 dests = 0; 759 memset(&kill.dst.addr.v.a.mask, 0xff, 760 sizeof(kill.dst.addr.v.a.mask)); 761 memset(&last_dst, 0xff, sizeof(last_dst)); 762 pfctl_addrprefix(state_kill[1], 763 &kill.dst.addr.v.a.mask); 764 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL, 765 &res[1]))) { 766 errx(1, "getaddrinfo: %s", 767 gai_strerror(ret_ga)); 768 /* NOTREACHED */ 769 } 770 for (resp[1] = res[1]; resp[1]; 771 resp[1] = resp[1]->ai_next) { 772 if (resp[1]->ai_addr == NULL) 773 continue; 774 if (kill.af != resp[1]->ai_family) 775 continue; 776 777 if (memcmp(&last_dst, resp[1]->ai_addr, 778 sizeof(last_dst)) == 0) 779 continue; 780 last_dst = *(struct sockaddr *)resp[1]->ai_addr; 781 782 dests++; 783 784 if (kill.af == AF_INET) 785 kill.dst.addr.v.a.addr.v4 = 786 ((struct sockaddr_in *)resp[1]-> 787 ai_addr)->sin_addr; 788 else if (kill.af == AF_INET6) 789 kill.dst.addr.v.a.addr.v6 = 790 ((struct sockaddr_in6 *)resp[1]-> 791 ai_addr)->sin6_addr; 792 else 793 errx(1, "Unknown address family %d", 794 kill.af); 795 796 if (pfctl_kill_states(dev, &kill, &newkilled)) 797 err(1, "DIOCKILLSTATES"); 798 killed += newkilled; 799 } 800 freeaddrinfo(res[1]); 801 } else { 802 if (pfctl_kill_states(dev, &kill, &newkilled)) 803 err(1, "DIOCKILLSTATES"); 804 killed += newkilled; 805 } 806 } 807 808 freeaddrinfo(res[0]); 809 810 if ((opts & PF_OPT_QUIET) == 0) 811 fprintf(stderr, "killed %d states from %d sources and %d " 812 "destinations\n", killed, sources, dests); 813 return (0); 814 } 815 816 int 817 pfctl_gateway_kill_states(int dev, const char *iface, int opts) 818 { 819 struct pfctl_kill kill; 820 struct addrinfo *res, *resp; 821 struct sockaddr last_src; 822 unsigned int newkilled; 823 int killed = 0; 824 int ret_ga; 825 826 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) { 827 warnx("no gateway specified"); 828 usage(); 829 } 830 831 memset(&kill, 0, sizeof(kill)); 832 memset(&kill.rt_addr.addr.v.a.mask, 0xff, 833 sizeof(kill.rt_addr.addr.v.a.mask)); 834 memset(&last_src, 0xff, sizeof(last_src)); 835 if (iface != NULL && strlcpy(kill.ifname, iface, 836 sizeof(kill.ifname)) >= sizeof(kill.ifname)) 837 errx(1, "invalid interface: %s", iface); 838 839 if (opts & PF_OPT_KILLMATCH) 840 kill.kill_match = true; 841 842 pfctl_addrprefix(state_kill[1], &kill.rt_addr.addr.v.a.mask); 843 844 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL, &res))) { 845 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga)); 846 /* NOTREACHED */ 847 } 848 for (resp = res; resp; resp = resp->ai_next) { 849 if (resp->ai_addr == NULL) 850 continue; 851 /* We get lots of duplicates. Catch the easy ones */ 852 if (memcmp(&last_src, resp->ai_addr, sizeof(last_src)) == 0) 853 continue; 854 last_src = *(struct sockaddr *)resp->ai_addr; 855 856 kill.af = resp->ai_family; 857 858 if (kill.af == AF_INET) 859 kill.rt_addr.addr.v.a.addr.v4 = 860 ((struct sockaddr_in *)resp->ai_addr)->sin_addr; 861 else if (kill.af == AF_INET6) 862 kill.rt_addr.addr.v.a.addr.v6 = 863 ((struct sockaddr_in6 *)resp->ai_addr)-> 864 sin6_addr; 865 else 866 errx(1, "Unknown address family %d", kill.af); 867 868 if (pfctl_kill_states(dev, &kill, &newkilled)) 869 err(1, "DIOCKILLSTATES"); 870 killed += newkilled; 871 } 872 873 freeaddrinfo(res); 874 875 if ((opts & PF_OPT_QUIET) == 0) 876 fprintf(stderr, "killed %d states\n", killed); 877 return (0); 878 } 879 880 int 881 pfctl_label_kill_states(int dev, const char *iface, int opts) 882 { 883 struct pfctl_kill kill; 884 unsigned int killed; 885 886 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) { 887 warnx("no label specified"); 888 usage(); 889 } 890 memset(&kill, 0, sizeof(kill)); 891 if (iface != NULL && strlcpy(kill.ifname, iface, 892 sizeof(kill.ifname)) >= sizeof(kill.ifname)) 893 errx(1, "invalid interface: %s", iface); 894 895 if (opts & PF_OPT_KILLMATCH) 896 kill.kill_match = true; 897 898 if (strlcpy(kill.label, state_kill[1], sizeof(kill.label)) >= 899 sizeof(kill.label)) 900 errx(1, "label too long: %s", state_kill[1]); 901 902 if (pfctl_kill_states(dev, &kill, &killed)) 903 err(1, "DIOCKILLSTATES"); 904 905 if ((opts & PF_OPT_QUIET) == 0) 906 fprintf(stderr, "killed %d states\n", killed); 907 908 return (0); 909 } 910 911 int 912 pfctl_id_kill_states(int dev, const char *iface, int opts) 913 { 914 struct pfctl_kill kill; 915 unsigned int killed; 916 917 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) { 918 warnx("no id specified"); 919 usage(); 920 } 921 922 memset(&kill, 0, sizeof(kill)); 923 924 if (opts & PF_OPT_KILLMATCH) 925 kill.kill_match = true; 926 927 if ((sscanf(state_kill[1], "%jx/%x", 928 &kill.cmp.id, &kill.cmp.creatorid)) == 2) { 929 } 930 else if ((sscanf(state_kill[1], "%jx", &kill.cmp.id)) == 1) { 931 kill.cmp.creatorid = 0; 932 } else { 933 warnx("wrong id format specified"); 934 usage(); 935 } 936 if (kill.cmp.id == 0) { 937 warnx("cannot kill id 0"); 938 usage(); 939 } 940 941 if (pfctl_kill_states(dev, &kill, &killed)) 942 err(1, "DIOCKILLSTATES"); 943 944 if ((opts & PF_OPT_QUIET) == 0) 945 fprintf(stderr, "killed %d states\n", killed); 946 947 return (0); 948 } 949 950 int 951 pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr, 952 u_int32_t ticket, int r_action, char *anchorname) 953 { 954 struct pfioc_pooladdr pp; 955 struct pf_pooladdr *pa; 956 u_int32_t pnr, mpnr; 957 958 memset(&pp, 0, sizeof(pp)); 959 memcpy(pp.anchor, anchorname, sizeof(pp.anchor)); 960 pp.r_action = r_action; 961 pp.r_num = nr; 962 pp.ticket = ticket; 963 if (ioctl(dev, DIOCGETADDRS, &pp)) { 964 warn("DIOCGETADDRS"); 965 return (-1); 966 } 967 mpnr = pp.nr; 968 TAILQ_INIT(&pool->list); 969 for (pnr = 0; pnr < mpnr; ++pnr) { 970 pp.nr = pnr; 971 if (ioctl(dev, DIOCGETADDR, &pp)) { 972 warn("DIOCGETADDR"); 973 return (-1); 974 } 975 pa = calloc(1, sizeof(struct pf_pooladdr)); 976 if (pa == NULL) 977 err(1, "calloc"); 978 bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr)); 979 TAILQ_INSERT_TAIL(&pool->list, pa, entries); 980 } 981 982 return (0); 983 } 984 985 void 986 pfctl_move_pool(struct pfctl_pool *src, struct pfctl_pool *dst) 987 { 988 struct pf_pooladdr *pa; 989 990 while ((pa = TAILQ_FIRST(&src->list)) != NULL) { 991 TAILQ_REMOVE(&src->list, pa, entries); 992 TAILQ_INSERT_TAIL(&dst->list, pa, entries); 993 } 994 } 995 996 void 997 pfctl_clear_pool(struct pfctl_pool *pool) 998 { 999 struct pf_pooladdr *pa; 1000 1001 while ((pa = TAILQ_FIRST(&pool->list)) != NULL) { 1002 TAILQ_REMOVE(&pool->list, pa, entries); 1003 free(pa); 1004 } 1005 } 1006 1007 void 1008 pfctl_print_eth_rule_counters(struct pfctl_eth_rule *rule, int opts) 1009 { 1010 if (opts & PF_OPT_VERBOSE) { 1011 printf(" [ Evaluations: %-8llu Packets: %-8llu " 1012 "Bytes: %-10llu]\n", 1013 (unsigned long long)rule->evaluations, 1014 (unsigned long long)(rule->packets[0] + 1015 rule->packets[1]), 1016 (unsigned long long)(rule->bytes[0] + 1017 rule->bytes[1])); 1018 } 1019 } 1020 1021 void 1022 pfctl_print_rule_counters(struct pfctl_rule *rule, int opts) 1023 { 1024 if (opts & PF_OPT_DEBUG) { 1025 const char *t[PF_SKIP_COUNT] = { "i", "d", "f", 1026 "p", "sa", "sp", "da", "dp" }; 1027 int i; 1028 1029 printf(" [ Skip steps: "); 1030 for (i = 0; i < PF_SKIP_COUNT; ++i) { 1031 if (rule->skip[i].nr == rule->nr + 1) 1032 continue; 1033 printf("%s=", t[i]); 1034 if (rule->skip[i].nr == -1) 1035 printf("end "); 1036 else 1037 printf("%u ", rule->skip[i].nr); 1038 } 1039 printf("]\n"); 1040 1041 printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n", 1042 rule->qname, rule->qid, rule->pqname, rule->pqid); 1043 } 1044 if (opts & PF_OPT_VERBOSE) { 1045 printf(" [ Evaluations: %-8llu Packets: %-8llu " 1046 "Bytes: %-10llu States: %-6ju]\n", 1047 (unsigned long long)rule->evaluations, 1048 (unsigned long long)(rule->packets[0] + 1049 rule->packets[1]), 1050 (unsigned long long)(rule->bytes[0] + 1051 rule->bytes[1]), (uintmax_t)rule->states_cur); 1052 if (!(opts & PF_OPT_DEBUG)) 1053 printf(" [ Inserted: uid %u pid %u " 1054 "State Creations: %-6ju]\n", 1055 (unsigned)rule->cuid, (unsigned)rule->cpid, 1056 (uintmax_t)rule->states_tot); 1057 } 1058 } 1059 1060 void 1061 pfctl_print_title(char *title) 1062 { 1063 if (!first_title) 1064 printf("\n"); 1065 first_title = 0; 1066 printf("%s\n", title); 1067 } 1068 1069 int 1070 pfctl_show_eth_rules(int dev, char *path, int opts, enum pfctl_show format, 1071 char *anchorname, int depth) 1072 { 1073 char anchor_call[MAXPATHLEN]; 1074 struct pfctl_eth_rules_info info; 1075 struct pfctl_eth_rule rule; 1076 int dotitle = opts & PF_OPT_SHOWALL; 1077 int len = strlen(path); 1078 int brace; 1079 char *p; 1080 1081 if (path[0]) 1082 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname); 1083 else 1084 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname); 1085 1086 if (pfctl_get_eth_rules_info(dev, &info, path)) { 1087 warn("DIOCGETETHRULES"); 1088 return (-1); 1089 } 1090 for (int nr = 0; nr < info.nr; nr++) { 1091 brace = 0; 1092 INDENT(depth, !(opts & PF_OPT_VERBOSE)); 1093 if (pfctl_get_eth_rule(dev, nr, info.ticket, path, &rule, 1094 opts & PF_OPT_CLRRULECTRS, anchor_call) != 0) { 1095 warn("DIOCGETETHRULE"); 1096 return (-1); 1097 } 1098 if (anchor_call[0] && 1099 ((((p = strrchr(anchor_call, '_')) != NULL) && 1100 (p == anchor_call || 1101 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) { 1102 brace++; 1103 if ((p = strrchr(anchor_call, '/')) != 1104 NULL) 1105 p++; 1106 else 1107 p = &anchor_call[0]; 1108 } else 1109 p = &anchor_call[0]; 1110 if (dotitle) { 1111 pfctl_print_title("ETH RULES:"); 1112 dotitle = 0; 1113 } 1114 print_eth_rule(&rule, anchor_call, 1115 opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG)); 1116 if (brace) 1117 printf(" {\n"); 1118 else 1119 printf("\n"); 1120 pfctl_print_eth_rule_counters(&rule, opts); 1121 if (brace) { 1122 pfctl_show_eth_rules(dev, path, opts, format, 1123 p, depth + 1); 1124 INDENT(depth, !(opts & PF_OPT_VERBOSE)); 1125 printf("}\n"); 1126 } 1127 } 1128 1129 path[len] = '\0'; 1130 return (0); 1131 } 1132 1133 int 1134 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format, 1135 char *anchorname, int depth) 1136 { 1137 struct pfctl_rules_info ri; 1138 struct pfctl_rule rule; 1139 char anchor_call[MAXPATHLEN]; 1140 u_int32_t nr, header = 0; 1141 int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 1142 int numeric = opts & PF_OPT_NUMERIC; 1143 int len = strlen(path); 1144 int brace; 1145 int ret; 1146 char *p; 1147 1148 if (path[0]) 1149 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname); 1150 else 1151 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname); 1152 1153 if (opts & PF_OPT_SHOWALL) { 1154 ret = pfctl_get_rules_info(dev, &ri, PF_PASS, path); 1155 if (ret != 0) { 1156 warn("DIOCGETRULES"); 1157 goto error; 1158 } 1159 header++; 1160 } 1161 ret = pfctl_get_rules_info(dev, &ri, PF_SCRUB, path); 1162 if (ret != 0) { 1163 warn("DIOCGETRULES"); 1164 goto error; 1165 } 1166 if (opts & PF_OPT_SHOWALL) { 1167 if (format == PFCTL_SHOW_RULES && (ri.nr > 0 || header)) 1168 pfctl_print_title("FILTER RULES:"); 1169 else if (format == PFCTL_SHOW_LABELS && labels) 1170 pfctl_print_title("LABEL COUNTERS:"); 1171 } 1172 1173 for (nr = 0; nr < ri.nr; ++nr) { 1174 if (pfctl_get_clear_rule(dev, nr, ri.ticket, path, PF_SCRUB, 1175 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) { 1176 warn("DIOCGETRULENV"); 1177 goto error; 1178 } 1179 1180 if (pfctl_get_pool(dev, &rule.rpool, 1181 nr, ri.ticket, PF_SCRUB, path) != 0) 1182 goto error; 1183 1184 switch (format) { 1185 case PFCTL_SHOW_LABELS: 1186 break; 1187 case PFCTL_SHOW_RULES: 1188 if (rule.label[0] && (opts & PF_OPT_SHOWALL)) 1189 labels = 1; 1190 print_rule(&rule, anchor_call, rule_numbers, numeric); 1191 printf("\n"); 1192 pfctl_print_rule_counters(&rule, opts); 1193 break; 1194 case PFCTL_SHOW_NOTHING: 1195 break; 1196 } 1197 pfctl_clear_pool(&rule.rpool); 1198 } 1199 ret = pfctl_get_rules_info(dev, &ri, PF_PASS, path); 1200 if (ret != 0) { 1201 warn("DIOCGETRULES"); 1202 goto error; 1203 } 1204 for (nr = 0; nr < ri.nr; ++nr) { 1205 if (pfctl_get_clear_rule(dev, nr, ri.ticket, path, PF_PASS, 1206 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) { 1207 warn("DIOCGETRULE"); 1208 goto error; 1209 } 1210 1211 if (pfctl_get_pool(dev, &rule.rpool, 1212 nr, ri.ticket, PF_PASS, path) != 0) 1213 goto error; 1214 1215 switch (format) { 1216 case PFCTL_SHOW_LABELS: { 1217 bool show = false; 1218 int i = 0; 1219 1220 while (rule.label[i][0]) { 1221 printf("%s ", rule.label[i++]); 1222 show = true; 1223 } 1224 1225 if (show) { 1226 printf("%llu %llu %llu %llu" 1227 " %llu %llu %llu %ju\n", 1228 (unsigned long long)rule.evaluations, 1229 (unsigned long long)(rule.packets[0] + 1230 rule.packets[1]), 1231 (unsigned long long)(rule.bytes[0] + 1232 rule.bytes[1]), 1233 (unsigned long long)rule.packets[0], 1234 (unsigned long long)rule.bytes[0], 1235 (unsigned long long)rule.packets[1], 1236 (unsigned long long)rule.bytes[1], 1237 (uintmax_t)rule.states_tot); 1238 } 1239 break; 1240 } 1241 case PFCTL_SHOW_RULES: 1242 brace = 0; 1243 if (rule.label[0] && (opts & PF_OPT_SHOWALL)) 1244 labels = 1; 1245 INDENT(depth, !(opts & PF_OPT_VERBOSE)); 1246 if (anchor_call[0] && 1247 ((((p = strrchr(anchor_call, '_')) != NULL) && 1248 ((void *)p == (void *)anchor_call || 1249 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) { 1250 brace++; 1251 int aclen = strlen(anchor_call); 1252 if (anchor_call[aclen - 1] == '*') 1253 anchor_call[aclen - 2] = '\0'; 1254 } 1255 p = &anchor_call[0]; 1256 1257 print_rule(&rule, p, rule_numbers, numeric); 1258 if (brace) 1259 printf(" {\n"); 1260 else 1261 printf("\n"); 1262 pfctl_print_rule_counters(&rule, opts); 1263 if (brace) { 1264 pfctl_show_rules(dev, path, opts, format, 1265 p, depth + 1); 1266 INDENT(depth, !(opts & PF_OPT_VERBOSE)); 1267 printf("}\n"); 1268 } 1269 break; 1270 case PFCTL_SHOW_NOTHING: 1271 break; 1272 } 1273 pfctl_clear_pool(&rule.rpool); 1274 } 1275 path[len] = '\0'; 1276 return (0); 1277 1278 error: 1279 path[len] = '\0'; 1280 return (-1); 1281 } 1282 1283 int 1284 pfctl_show_nat(int dev, char *path, int opts, char *anchorname, int depth) 1285 { 1286 struct pfctl_rules_info ri; 1287 struct pfctl_rule rule; 1288 char anchor_call[MAXPATHLEN]; 1289 u_int32_t nr; 1290 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT }; 1291 int i, dotitle = opts & PF_OPT_SHOWALL; 1292 int brace, ret; 1293 int len = strlen(path); 1294 char *p; 1295 1296 if (path[0]) 1297 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname); 1298 else 1299 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname); 1300 1301 for (i = 0; i < 3; i++) { 1302 ret = pfctl_get_rules_info(dev, &ri, nattype[i], path); 1303 if (ret != 0) { 1304 warn("DIOCGETRULES"); 1305 return (-1); 1306 } 1307 for (nr = 0; nr < ri.nr; ++nr) { 1308 brace = 0; 1309 INDENT(depth, !(opts & PF_OPT_VERBOSE)); 1310 1311 if (pfctl_get_rule(dev, nr, ri.ticket, path, 1312 nattype[i], &rule, anchor_call)) { 1313 warn("DIOCGETRULE"); 1314 return (-1); 1315 } 1316 if (pfctl_get_pool(dev, &rule.rpool, nr, 1317 ri.ticket, nattype[i], path) != 0) 1318 return (-1); 1319 1320 if (anchor_call[0] && 1321 ((((p = strrchr(anchor_call, '_')) != NULL) && 1322 (p == anchor_call || 1323 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) { 1324 brace++; 1325 if ((p = strrchr(anchor_call, '/')) != 1326 NULL) 1327 p++; 1328 else 1329 p = &anchor_call[0]; 1330 } else 1331 p = &anchor_call[0]; 1332 1333 if (dotitle) { 1334 pfctl_print_title("TRANSLATION RULES:"); 1335 dotitle = 0; 1336 } 1337 print_rule(&rule, anchor_call, 1338 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC); 1339 if (brace) 1340 printf(" {\n"); 1341 else 1342 printf("\n"); 1343 pfctl_print_rule_counters(&rule, opts); 1344 pfctl_clear_pool(&rule.rpool); 1345 if (brace) { 1346 pfctl_show_nat(dev, path, opts, p, depth + 1); 1347 INDENT(depth, !(opts & PF_OPT_VERBOSE)); 1348 printf("}\n"); 1349 } 1350 } 1351 } 1352 return (0); 1353 } 1354 1355 int 1356 pfctl_show_src_nodes(int dev, int opts) 1357 { 1358 struct pfioc_src_nodes psn; 1359 struct pf_src_node *p; 1360 char *inbuf = NULL, *newinbuf = NULL; 1361 unsigned int len = 0; 1362 int i; 1363 1364 memset(&psn, 0, sizeof(psn)); 1365 for (;;) { 1366 psn.psn_len = len; 1367 if (len) { 1368 newinbuf = realloc(inbuf, len); 1369 if (newinbuf == NULL) 1370 err(1, "realloc"); 1371 psn.psn_buf = inbuf = newinbuf; 1372 } 1373 if (ioctl(dev, DIOCGETSRCNODES, &psn) < 0) { 1374 warn("DIOCGETSRCNODES"); 1375 free(inbuf); 1376 return (-1); 1377 } 1378 if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len) 1379 break; 1380 if (len == 0 && psn.psn_len == 0) 1381 goto done; 1382 if (len == 0 && psn.psn_len != 0) 1383 len = psn.psn_len; 1384 if (psn.psn_len == 0) 1385 goto done; /* no src_nodes */ 1386 len *= 2; 1387 } 1388 p = psn.psn_src_nodes; 1389 if (psn.psn_len > 0 && (opts & PF_OPT_SHOWALL)) 1390 pfctl_print_title("SOURCE TRACKING NODES:"); 1391 for (i = 0; i < psn.psn_len; i += sizeof(*p)) { 1392 print_src_node(p, opts); 1393 p++; 1394 } 1395 done: 1396 free(inbuf); 1397 return (0); 1398 } 1399 1400 int 1401 pfctl_show_states(int dev, const char *iface, int opts) 1402 { 1403 struct pfctl_states states; 1404 struct pfctl_state *s; 1405 int dotitle = (opts & PF_OPT_SHOWALL); 1406 1407 memset(&states, 0, sizeof(states)); 1408 1409 if (pfctl_get_states(dev, &states)) 1410 return (-1); 1411 1412 TAILQ_FOREACH(s, &states.states, entry) { 1413 if (iface != NULL && strcmp(s->ifname, iface)) 1414 continue; 1415 if (dotitle) { 1416 pfctl_print_title("STATES:"); 1417 dotitle = 0; 1418 } 1419 print_state(s, opts); 1420 } 1421 1422 pfctl_free_states(&states); 1423 1424 return (0); 1425 } 1426 1427 int 1428 pfctl_show_status(int dev, int opts) 1429 { 1430 struct pfctl_status *status; 1431 struct pfctl_syncookies cookies; 1432 1433 if ((status = pfctl_get_status(dev)) == NULL) { 1434 warn("DIOCGETSTATUS"); 1435 return (-1); 1436 } 1437 if (pfctl_get_syncookies(dev, &cookies)) { 1438 pfctl_free_status(status); 1439 warn("DIOCGETSYNCOOKIES"); 1440 return (-1); 1441 } 1442 if (opts & PF_OPT_SHOWALL) 1443 pfctl_print_title("INFO:"); 1444 print_status(status, &cookies, opts); 1445 pfctl_free_status(status); 1446 return (0); 1447 } 1448 1449 int 1450 pfctl_show_running(int dev) 1451 { 1452 struct pfctl_status *status; 1453 int running; 1454 1455 if ((status = pfctl_get_status(dev)) == NULL) { 1456 warn("DIOCGETSTATUS"); 1457 return (-1); 1458 } 1459 1460 running = status->running; 1461 1462 print_running(status); 1463 pfctl_free_status(status); 1464 return (!running); 1465 } 1466 1467 int 1468 pfctl_show_timeouts(int dev, int opts) 1469 { 1470 struct pfioc_tm pt; 1471 int i; 1472 1473 if (opts & PF_OPT_SHOWALL) 1474 pfctl_print_title("TIMEOUTS:"); 1475 memset(&pt, 0, sizeof(pt)); 1476 for (i = 0; pf_timeouts[i].name; i++) { 1477 pt.timeout = pf_timeouts[i].timeout; 1478 if (ioctl(dev, DIOCGETTIMEOUT, &pt)) 1479 err(1, "DIOCGETTIMEOUT"); 1480 printf("%-20s %10d", pf_timeouts[i].name, pt.seconds); 1481 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START && 1482 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END) 1483 printf(" states"); 1484 else 1485 printf("s"); 1486 printf("\n"); 1487 } 1488 return (0); 1489 1490 } 1491 1492 int 1493 pfctl_show_limits(int dev, int opts) 1494 { 1495 struct pfioc_limit pl; 1496 int i; 1497 1498 if (opts & PF_OPT_SHOWALL) 1499 pfctl_print_title("LIMITS:"); 1500 memset(&pl, 0, sizeof(pl)); 1501 for (i = 0; pf_limits[i].name; i++) { 1502 pl.index = pf_limits[i].index; 1503 if (ioctl(dev, DIOCGETLIMIT, &pl)) 1504 err(1, "DIOCGETLIMIT"); 1505 printf("%-13s ", pf_limits[i].name); 1506 if (pl.limit == UINT_MAX) 1507 printf("unlimited\n"); 1508 else 1509 printf("hard limit %8u\n", pl.limit); 1510 } 1511 return (0); 1512 } 1513 1514 /* callbacks for rule/nat/rdr/addr */ 1515 int 1516 pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, sa_family_t af) 1517 { 1518 struct pf_pooladdr *pa; 1519 1520 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1521 if (ioctl(pf->dev, DIOCBEGINADDRS, &pf->paddr)) 1522 err(1, "DIOCBEGINADDRS"); 1523 } 1524 1525 pf->paddr.af = af; 1526 TAILQ_FOREACH(pa, &p->list, entries) { 1527 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr)); 1528 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1529 if (ioctl(pf->dev, DIOCADDADDR, &pf->paddr)) 1530 err(1, "DIOCADDADDR"); 1531 } 1532 } 1533 return (0); 1534 } 1535 1536 int 1537 pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r, 1538 const char *anchor_call) 1539 { 1540 u_int8_t rs_num; 1541 struct pfctl_rule *rule; 1542 struct pfctl_ruleset *rs; 1543 char *p; 1544 1545 rs_num = pf_get_ruleset_number(r->action); 1546 if (rs_num == PF_RULESET_MAX) 1547 errx(1, "Invalid rule type %d", r->action); 1548 1549 rs = &pf->anchor->ruleset; 1550 1551 if (anchor_call[0] && r->anchor == NULL) { 1552 /* 1553 * Don't make non-brace anchors part of the main anchor pool. 1554 */ 1555 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL) 1556 err(1, "pfctl_append_rule: calloc"); 1557 1558 pf_init_ruleset(&r->anchor->ruleset); 1559 r->anchor->ruleset.anchor = r->anchor; 1560 if (strlcpy(r->anchor->path, anchor_call, 1561 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path)) 1562 errx(1, "pfctl_append_rule: strlcpy"); 1563 if ((p = strrchr(anchor_call, '/')) != NULL) { 1564 if (!strlen(p)) 1565 err(1, "pfctl_append_rule: bad anchor name %s", 1566 anchor_call); 1567 } else 1568 p = (char *)anchor_call; 1569 if (strlcpy(r->anchor->name, p, 1570 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name)) 1571 errx(1, "pfctl_append_rule: strlcpy"); 1572 } 1573 1574 if ((rule = calloc(1, sizeof(*rule))) == NULL) 1575 err(1, "calloc"); 1576 bcopy(r, rule, sizeof(*rule)); 1577 TAILQ_INIT(&rule->rpool.list); 1578 pfctl_move_pool(&r->rpool, &rule->rpool); 1579 1580 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries); 1581 return (0); 1582 } 1583 1584 int 1585 pfctl_append_eth_rule(struct pfctl *pf, struct pfctl_eth_rule *r, 1586 const char *anchor_call) 1587 { 1588 struct pfctl_eth_rule *rule; 1589 struct pfctl_eth_ruleset *rs; 1590 char *p; 1591 1592 rs = &pf->eanchor->ruleset; 1593 1594 if (anchor_call[0] && r->anchor == NULL) { 1595 /* 1596 * Don't make non-brace anchors part of the main anchor pool. 1597 */ 1598 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL) 1599 err(1, "pfctl_append_rule: calloc"); 1600 1601 pf_init_eth_ruleset(&r->anchor->ruleset); 1602 r->anchor->ruleset.anchor = r->anchor; 1603 if (strlcpy(r->anchor->path, anchor_call, 1604 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path)) 1605 errx(1, "pfctl_append_rule: strlcpy"); 1606 if ((p = strrchr(anchor_call, '/')) != NULL) { 1607 if (!strlen(p)) 1608 err(1, "pfctl_append_eth_rule: bad anchor name %s", 1609 anchor_call); 1610 } else 1611 p = (char *)anchor_call; 1612 if (strlcpy(r->anchor->name, p, 1613 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name)) 1614 errx(1, "pfctl_append_eth_rule: strlcpy"); 1615 } 1616 1617 if ((rule = calloc(1, sizeof(*rule))) == NULL) 1618 err(1, "calloc"); 1619 bcopy(r, rule, sizeof(*rule)); 1620 1621 TAILQ_INSERT_TAIL(&rs->rules, rule, entries); 1622 return (0); 1623 } 1624 1625 int 1626 pfctl_eth_ruleset_trans(struct pfctl *pf, char *path, 1627 struct pfctl_eth_anchor *a) 1628 { 1629 int osize = pf->trans->pfrb_size; 1630 1631 if ((pf->loadopt & PFCTL_FLAG_ETH) != 0) { 1632 if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path)) 1633 return (1); 1634 } 1635 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize)) 1636 return (5); 1637 1638 return (0); 1639 } 1640 1641 int 1642 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pfctl_anchor *a, bool do_eth) 1643 { 1644 int osize = pf->trans->pfrb_size; 1645 1646 if ((pf->loadopt & PFCTL_FLAG_ETH) != 0 && do_eth) { 1647 if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path)) 1648 return (1); 1649 } 1650 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) { 1651 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) || 1652 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) || 1653 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path)) 1654 return (1); 1655 } 1656 if (a == pf->astack[0] && ((altqsupport && 1657 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) { 1658 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path)) 1659 return (2); 1660 } 1661 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) { 1662 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) || 1663 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path)) 1664 return (3); 1665 } 1666 if (pf->loadopt & PFCTL_FLAG_TABLE) 1667 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path)) 1668 return (4); 1669 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize)) 1670 return (5); 1671 1672 return (0); 1673 } 1674 1675 int 1676 pfctl_load_eth_ruleset(struct pfctl *pf, char *path, 1677 struct pfctl_eth_ruleset *rs, int depth) 1678 { 1679 struct pfctl_eth_rule *r; 1680 int error, len = strlen(path); 1681 int brace = 0; 1682 1683 pf->eanchor = rs->anchor; 1684 if (path[0]) 1685 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->eanchor->name); 1686 else 1687 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->eanchor->name); 1688 1689 if (depth) { 1690 if (TAILQ_FIRST(&rs->rules) != NULL) { 1691 brace++; 1692 if (pf->opts & PF_OPT_VERBOSE) 1693 printf(" {\n"); 1694 if ((pf->opts & PF_OPT_NOACTION) == 0 && 1695 (error = pfctl_eth_ruleset_trans(pf, 1696 path, rs->anchor))) { 1697 printf("pfctl_load_eth_rulesets: " 1698 "pfctl_eth_ruleset_trans %d\n", error); 1699 goto error; 1700 } 1701 } else if (pf->opts & PF_OPT_VERBOSE) 1702 printf("\n"); 1703 } 1704 1705 while ((r = TAILQ_FIRST(&rs->rules)) != NULL) { 1706 TAILQ_REMOVE(&rs->rules, r, entries); 1707 1708 error = pfctl_load_eth_rule(pf, path, r, depth); 1709 if (error) 1710 return (error); 1711 1712 if (r->anchor) { 1713 if ((error = pfctl_load_eth_ruleset(pf, path, 1714 &r->anchor->ruleset, depth + 1))) 1715 return (error); 1716 } else if (pf->opts & PF_OPT_VERBOSE) 1717 printf("\n"); 1718 free(r); 1719 } 1720 if (brace && pf->opts & PF_OPT_VERBOSE) { 1721 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE)); 1722 printf("}\n"); 1723 } 1724 path[len] = '\0'; 1725 1726 return (0); 1727 error: 1728 path[len] = '\0'; 1729 return (error); 1730 } 1731 1732 int 1733 pfctl_load_eth_rule(struct pfctl *pf, char *path, struct pfctl_eth_rule *r, 1734 int depth) 1735 { 1736 char *name; 1737 char anchor[PF_ANCHOR_NAME_SIZE]; 1738 int len = strlen(path); 1739 1740 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor)) 1741 errx(1, "pfctl_load_eth_rule: strlcpy"); 1742 1743 if (r->anchor) { 1744 if (r->anchor->match) { 1745 if (path[0]) 1746 snprintf(&path[len], MAXPATHLEN - len, 1747 "/%s", r->anchor->name); 1748 else 1749 snprintf(&path[len], MAXPATHLEN - len, 1750 "%s", r->anchor->name); 1751 name = r->anchor->name; 1752 } else 1753 name = r->anchor->path; 1754 } else 1755 name = ""; 1756 1757 if ((pf->opts & PF_OPT_NOACTION) == 0) 1758 if (pfctl_add_eth_rule(pf->dev, r, anchor, name, 1759 pf->eth_ticket)) 1760 err(1, "DIOCADDETHRULENV"); 1761 1762 if (pf->opts & PF_OPT_VERBOSE) { 1763 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2)); 1764 print_eth_rule(r, r->anchor ? r->anchor->name : "", 1765 pf->opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG)); 1766 } 1767 1768 path[len] = '\0'; 1769 1770 return (0); 1771 } 1772 1773 int 1774 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pfctl_ruleset *rs, 1775 int rs_num, int depth) 1776 { 1777 struct pfctl_rule *r; 1778 int error, len = strlen(path); 1779 int brace = 0; 1780 1781 pf->anchor = rs->anchor; 1782 1783 if (path[0]) 1784 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name); 1785 else 1786 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name); 1787 1788 if (depth) { 1789 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) { 1790 brace++; 1791 if (pf->opts & PF_OPT_VERBOSE) 1792 printf(" {\n"); 1793 if ((pf->opts & PF_OPT_NOACTION) == 0 && 1794 (error = pfctl_ruleset_trans(pf, 1795 path, rs->anchor, false))) { 1796 printf("pfctl_load_rulesets: " 1797 "pfctl_ruleset_trans %d\n", error); 1798 goto error; 1799 } 1800 } else if (pf->opts & PF_OPT_VERBOSE) 1801 printf("\n"); 1802 1803 } 1804 1805 if (pf->optimize && rs_num == PF_RULESET_FILTER) 1806 pfctl_optimize_ruleset(pf, rs); 1807 1808 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) { 1809 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries); 1810 1811 for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++) 1812 expand_label(r->label[i], PF_RULE_LABEL_SIZE, r); 1813 expand_label(r->tagname, PF_TAG_NAME_SIZE, r); 1814 expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r); 1815 1816 if ((error = pfctl_load_rule(pf, path, r, depth))) 1817 goto error; 1818 if (r->anchor) { 1819 if ((error = pfctl_load_ruleset(pf, path, 1820 &r->anchor->ruleset, rs_num, depth + 1))) 1821 goto error; 1822 } else if (pf->opts & PF_OPT_VERBOSE) 1823 printf("\n"); 1824 free(r); 1825 } 1826 if (brace && pf->opts & PF_OPT_VERBOSE) { 1827 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE)); 1828 printf("}\n"); 1829 } 1830 path[len] = '\0'; 1831 return (0); 1832 1833 error: 1834 path[len] = '\0'; 1835 return (error); 1836 1837 } 1838 1839 int 1840 pfctl_load_rule(struct pfctl *pf, char *path, struct pfctl_rule *r, int depth) 1841 { 1842 u_int8_t rs_num = pf_get_ruleset_number(r->action); 1843 char *name; 1844 u_int32_t ticket; 1845 char anchor[PF_ANCHOR_NAME_SIZE]; 1846 int len = strlen(path); 1847 int error; 1848 bool was_present; 1849 1850 /* set up anchor before adding to path for anchor_call */ 1851 if ((pf->opts & PF_OPT_NOACTION) == 0) 1852 ticket = pfctl_get_ticket(pf->trans, rs_num, path); 1853 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor)) 1854 errx(1, "pfctl_load_rule: strlcpy"); 1855 1856 if (r->anchor) { 1857 if (r->anchor->match) { 1858 if (path[0]) 1859 snprintf(&path[len], MAXPATHLEN - len, 1860 "/%s", r->anchor->name); 1861 else 1862 snprintf(&path[len], MAXPATHLEN - len, 1863 "%s", r->anchor->name); 1864 name = r->anchor->name; 1865 } else 1866 name = r->anchor->path; 1867 } else 1868 name = ""; 1869 1870 was_present = false; 1871 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1872 if (pfctl_add_pool(pf, &r->rpool, r->af)) 1873 return (1); 1874 error = pfctl_add_rule(pf->dev, r, anchor, name, ticket, 1875 pf->paddr.ticket); 1876 switch (error) { 1877 case 0: 1878 /* things worked, do nothing */ 1879 break; 1880 case EEXIST: 1881 /* an identical rule is already present */ 1882 was_present = true; 1883 break; 1884 default: 1885 err(1, "DIOCADDRULENV"); 1886 } 1887 } 1888 1889 if (pf->opts & PF_OPT_VERBOSE) { 1890 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2)); 1891 print_rule(r, r->anchor ? r->anchor->name : "", 1892 pf->opts & PF_OPT_VERBOSE2, 1893 pf->opts & PF_OPT_NUMERIC); 1894 if (was_present) 1895 printf(" -- rule was already present"); 1896 } 1897 path[len] = '\0'; 1898 pfctl_clear_pool(&r->rpool); 1899 return (0); 1900 } 1901 1902 int 1903 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a) 1904 { 1905 if (altqsupport && 1906 (loadopt & PFCTL_FLAG_ALTQ) != 0) { 1907 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq)); 1908 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1909 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) { 1910 if (errno == ENXIO) 1911 errx(1, "qtype not configured"); 1912 else if (errno == ENODEV) 1913 errx(1, "%s: driver does not support " 1914 "altq", a->ifname); 1915 else 1916 err(1, "DIOCADDALTQ"); 1917 } 1918 } 1919 pfaltq_store(&pf->paltq->altq); 1920 } 1921 return (0); 1922 } 1923 1924 int 1925 pfctl_rules(int dev, char *filename, int opts, int optimize, 1926 char *anchorname, struct pfr_buffer *trans) 1927 { 1928 #define ERR(x) do { warn(x); goto _error; } while(0) 1929 #define ERRX(x) do { warnx(x); goto _error; } while(0) 1930 1931 struct pfr_buffer *t, buf; 1932 struct pfioc_altq pa; 1933 struct pfctl pf; 1934 struct pfctl_ruleset *rs; 1935 struct pfctl_eth_ruleset *ethrs; 1936 struct pfr_table trs; 1937 char *path; 1938 int osize; 1939 1940 RB_INIT(&pf_anchors); 1941 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor)); 1942 pf_init_ruleset(&pf_main_anchor.ruleset); 1943 pf_main_anchor.ruleset.anchor = &pf_main_anchor; 1944 1945 memset(&pf_eth_main_anchor, 0, sizeof(pf_eth_main_anchor)); 1946 pf_init_eth_ruleset(&pf_eth_main_anchor.ruleset); 1947 pf_eth_main_anchor.ruleset.anchor = &pf_eth_main_anchor; 1948 1949 if (trans == NULL) { 1950 bzero(&buf, sizeof(buf)); 1951 buf.pfrb_type = PFRB_TRANS; 1952 t = &buf; 1953 osize = 0; 1954 } else { 1955 t = trans; 1956 osize = t->pfrb_size; 1957 } 1958 1959 memset(&pa, 0, sizeof(pa)); 1960 pa.version = PFIOC_ALTQ_VERSION; 1961 memset(&pf, 0, sizeof(pf)); 1962 memset(&trs, 0, sizeof(trs)); 1963 if ((path = calloc(1, MAXPATHLEN)) == NULL) 1964 ERRX("pfctl_rules: calloc"); 1965 if (strlcpy(trs.pfrt_anchor, anchorname, 1966 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor)) 1967 ERRX("pfctl_rules: strlcpy"); 1968 pf.dev = dev; 1969 pf.opts = opts; 1970 pf.optimize = optimize; 1971 pf.loadopt = loadopt; 1972 1973 /* non-brace anchor, create without resolving the path */ 1974 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL) 1975 ERRX("pfctl_rules: calloc"); 1976 rs = &pf.anchor->ruleset; 1977 pf_init_ruleset(rs); 1978 rs->anchor = pf.anchor; 1979 if (strlcpy(pf.anchor->path, anchorname, 1980 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path)) 1981 errx(1, "pfctl_rules: strlcpy"); 1982 if (strlcpy(pf.anchor->name, anchorname, 1983 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name)) 1984 errx(1, "pfctl_rules: strlcpy"); 1985 1986 1987 pf.astack[0] = pf.anchor; 1988 pf.asd = 0; 1989 if (anchorname[0]) 1990 pf.loadopt &= ~PFCTL_FLAG_ALTQ; 1991 pf.paltq = &pa; 1992 pf.trans = t; 1993 pfctl_init_options(&pf); 1994 1995 /* Set up ethernet anchor */ 1996 if ((pf.eanchor = calloc(1, sizeof(*pf.eanchor))) == NULL) 1997 ERRX("pfctl_rules: calloc"); 1998 1999 if (strlcpy(pf.eanchor->path, anchorname, 2000 sizeof(pf.eanchor->path)) >= sizeof(pf.eanchor->path)) 2001 errx(1, "pfctl_rules: strlcpy"); 2002 if (strlcpy(pf.eanchor->name, anchorname, 2003 sizeof(pf.eanchor->name)) >= sizeof(pf.eanchor->name)) 2004 errx(1, "pfctl_rules: strlcpy"); 2005 2006 ethrs = &pf.eanchor->ruleset; 2007 pf_init_eth_ruleset(ethrs); 2008 ethrs->anchor = pf.eanchor; 2009 pf.eastack[0] = pf.eanchor; 2010 2011 if ((opts & PF_OPT_NOACTION) == 0) { 2012 /* 2013 * XXX For the time being we need to open transactions for 2014 * the main ruleset before parsing, because tables are still 2015 * loaded at parse time. 2016 */ 2017 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor, true)) 2018 ERRX("pfctl_rules"); 2019 if (pf.loadopt & PFCTL_FLAG_ETH) 2020 pf.eth_ticket = pfctl_get_ticket(t, PF_RULESET_ETH, anchorname); 2021 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ)) 2022 pa.ticket = 2023 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname); 2024 if (pf.loadopt & PFCTL_FLAG_TABLE) 2025 pf.astack[0]->ruleset.tticket = 2026 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname); 2027 } 2028 2029 if (parse_config(filename, &pf) < 0) { 2030 if ((opts & PF_OPT_NOACTION) == 0) 2031 ERRX("Syntax error in config file: " 2032 "pf rules not loaded"); 2033 else 2034 goto _error; 2035 } 2036 if (loadopt & PFCTL_FLAG_OPTION) 2037 pfctl_adjust_skip_ifaces(&pf); 2038 2039 if ((pf.loadopt & PFCTL_FLAG_FILTER && 2040 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) || 2041 (pf.loadopt & PFCTL_FLAG_ETH && 2042 (pfctl_load_eth_ruleset(&pf, path, ethrs, 0))) || 2043 (pf.loadopt & PFCTL_FLAG_NAT && 2044 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) || 2045 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) || 2046 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) || 2047 (pf.loadopt & PFCTL_FLAG_FILTER && 2048 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) { 2049 if ((opts & PF_OPT_NOACTION) == 0) 2050 ERRX("Unable to load rules into kernel"); 2051 else 2052 goto _error; 2053 } 2054 2055 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0)) 2056 if (check_commit_altq(dev, opts) != 0) 2057 ERRX("errors in altq config"); 2058 2059 /* process "load anchor" directives */ 2060 if (!anchorname[0]) 2061 if (pfctl_load_anchors(dev, &pf, t) == -1) 2062 ERRX("load anchors"); 2063 2064 if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) { 2065 if (!anchorname[0]) 2066 if (pfctl_load_options(&pf)) 2067 goto _error; 2068 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize)) 2069 ERR("DIOCXCOMMIT"); 2070 } 2071 free(path); 2072 return (0); 2073 2074 _error: 2075 if (trans == NULL) { /* main ruleset */ 2076 if ((opts & PF_OPT_NOACTION) == 0) 2077 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize)) 2078 err(1, "DIOCXROLLBACK"); 2079 exit(1); 2080 } else { /* sub ruleset */ 2081 free(path); 2082 return (-1); 2083 } 2084 2085 #undef ERR 2086 #undef ERRX 2087 } 2088 2089 FILE * 2090 pfctl_fopen(const char *name, const char *mode) 2091 { 2092 struct stat st; 2093 FILE *fp; 2094 2095 fp = fopen(name, mode); 2096 if (fp == NULL) 2097 return (NULL); 2098 if (fstat(fileno(fp), &st)) { 2099 fclose(fp); 2100 return (NULL); 2101 } 2102 if (S_ISDIR(st.st_mode)) { 2103 fclose(fp); 2104 errno = EISDIR; 2105 return (NULL); 2106 } 2107 return (fp); 2108 } 2109 2110 void 2111 pfctl_init_options(struct pfctl *pf) 2112 { 2113 2114 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL; 2115 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL; 2116 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL; 2117 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL; 2118 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL; 2119 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL; 2120 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL; 2121 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL; 2122 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL; 2123 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL; 2124 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL; 2125 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL; 2126 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL; 2127 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL; 2128 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL; 2129 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL; 2130 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL; 2131 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL; 2132 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START; 2133 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END; 2134 2135 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT; 2136 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT; 2137 pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT; 2138 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT; 2139 2140 pf->debug = PF_DEBUG_URGENT; 2141 2142 pf->syncookies = false; 2143 pf->syncookieswat[0] = PF_SYNCOOKIES_LOWATPCT; 2144 pf->syncookieswat[1] = PF_SYNCOOKIES_HIWATPCT; 2145 } 2146 2147 int 2148 pfctl_load_options(struct pfctl *pf) 2149 { 2150 int i, error = 0; 2151 2152 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 2153 return (0); 2154 2155 /* load limits */ 2156 for (i = 0; i < PF_LIMIT_MAX; i++) { 2157 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i]) 2158 continue; 2159 if (pfctl_load_limit(pf, i, pf->limit[i])) 2160 error = 1; 2161 } 2162 2163 /* 2164 * If we've set the limit, but haven't explicitly set adaptive 2165 * timeouts, do it now with a start of 60% and end of 120%. 2166 */ 2167 if (pf->limit_set[PF_LIMIT_STATES] && 2168 !pf->timeout_set[PFTM_ADAPTIVE_START] && 2169 !pf->timeout_set[PFTM_ADAPTIVE_END]) { 2170 pf->timeout[PFTM_ADAPTIVE_START] = 2171 (pf->limit[PF_LIMIT_STATES] / 10) * 6; 2172 pf->timeout_set[PFTM_ADAPTIVE_START] = 1; 2173 pf->timeout[PFTM_ADAPTIVE_END] = 2174 (pf->limit[PF_LIMIT_STATES] / 10) * 12; 2175 pf->timeout_set[PFTM_ADAPTIVE_END] = 1; 2176 } 2177 2178 /* load timeouts */ 2179 for (i = 0; i < PFTM_MAX; i++) { 2180 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i]) 2181 continue; 2182 if (pfctl_load_timeout(pf, i, pf->timeout[i])) 2183 error = 1; 2184 } 2185 2186 /* load debug */ 2187 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set) 2188 if (pfctl_load_debug(pf, pf->debug)) 2189 error = 1; 2190 2191 /* load logif */ 2192 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set) 2193 if (pfctl_load_logif(pf, pf->ifname)) 2194 error = 1; 2195 2196 /* load hostid */ 2197 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set) 2198 if (pfctl_load_hostid(pf, pf->hostid)) 2199 error = 1; 2200 2201 /* load keepcounters */ 2202 if (pfctl_set_keepcounters(pf->dev, pf->keep_counters)) 2203 error = 1; 2204 2205 /* load syncookies settings */ 2206 if (pfctl_load_syncookies(pf, pf->syncookies)) 2207 error = 1; 2208 2209 return (error); 2210 } 2211 2212 int 2213 pfctl_set_limit(struct pfctl *pf, const char *opt, unsigned int limit) 2214 { 2215 int i; 2216 2217 2218 for (i = 0; pf_limits[i].name; i++) { 2219 if (strcasecmp(opt, pf_limits[i].name) == 0) { 2220 pf->limit[pf_limits[i].index] = limit; 2221 pf->limit_set[pf_limits[i].index] = 1; 2222 break; 2223 } 2224 } 2225 if (pf_limits[i].name == NULL) { 2226 warnx("Bad pool name."); 2227 return (1); 2228 } 2229 2230 if (pf->opts & PF_OPT_VERBOSE) 2231 printf("set limit %s %d\n", opt, limit); 2232 2233 return (0); 2234 } 2235 2236 int 2237 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit) 2238 { 2239 struct pfioc_limit pl; 2240 2241 memset(&pl, 0, sizeof(pl)); 2242 pl.index = index; 2243 pl.limit = limit; 2244 if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) { 2245 if (errno == EBUSY) 2246 warnx("Current pool size exceeds requested hard limit"); 2247 else 2248 warnx("DIOCSETLIMIT"); 2249 return (1); 2250 } 2251 return (0); 2252 } 2253 2254 int 2255 pfctl_set_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet) 2256 { 2257 int i; 2258 2259 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 2260 return (0); 2261 2262 for (i = 0; pf_timeouts[i].name; i++) { 2263 if (strcasecmp(opt, pf_timeouts[i].name) == 0) { 2264 pf->timeout[pf_timeouts[i].timeout] = seconds; 2265 pf->timeout_set[pf_timeouts[i].timeout] = 1; 2266 break; 2267 } 2268 } 2269 2270 if (pf_timeouts[i].name == NULL) { 2271 warnx("Bad timeout name."); 2272 return (1); 2273 } 2274 2275 2276 if (pf->opts & PF_OPT_VERBOSE && ! quiet) 2277 printf("set timeout %s %d\n", opt, seconds); 2278 2279 return (0); 2280 } 2281 2282 int 2283 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds) 2284 { 2285 struct pfioc_tm pt; 2286 2287 memset(&pt, 0, sizeof(pt)); 2288 pt.timeout = timeout; 2289 pt.seconds = seconds; 2290 if (ioctl(pf->dev, DIOCSETTIMEOUT, &pt)) { 2291 warnx("DIOCSETTIMEOUT"); 2292 return (1); 2293 } 2294 return (0); 2295 } 2296 2297 int 2298 pfctl_set_optimization(struct pfctl *pf, const char *opt) 2299 { 2300 const struct pf_hint *hint; 2301 int i, r; 2302 2303 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 2304 return (0); 2305 2306 for (i = 0; pf_hints[i].name; i++) 2307 if (strcasecmp(opt, pf_hints[i].name) == 0) 2308 break; 2309 2310 hint = pf_hints[i].hint; 2311 if (hint == NULL) { 2312 warnx("invalid state timeouts optimization"); 2313 return (1); 2314 } 2315 2316 for (i = 0; hint[i].name; i++) 2317 if ((r = pfctl_set_timeout(pf, hint[i].name, 2318 hint[i].timeout, 1))) 2319 return (r); 2320 2321 if (pf->opts & PF_OPT_VERBOSE) 2322 printf("set optimization %s\n", opt); 2323 2324 return (0); 2325 } 2326 2327 int 2328 pfctl_set_logif(struct pfctl *pf, char *ifname) 2329 { 2330 2331 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 2332 return (0); 2333 2334 if (!strcmp(ifname, "none")) { 2335 free(pf->ifname); 2336 pf->ifname = NULL; 2337 } else { 2338 pf->ifname = strdup(ifname); 2339 if (!pf->ifname) 2340 errx(1, "pfctl_set_logif: strdup"); 2341 } 2342 pf->ifname_set = 1; 2343 2344 if (pf->opts & PF_OPT_VERBOSE) 2345 printf("set loginterface %s\n", ifname); 2346 2347 return (0); 2348 } 2349 2350 int 2351 pfctl_load_logif(struct pfctl *pf, char *ifname) 2352 { 2353 struct pfioc_if pi; 2354 2355 memset(&pi, 0, sizeof(pi)); 2356 if (ifname && strlcpy(pi.ifname, ifname, 2357 sizeof(pi.ifname)) >= sizeof(pi.ifname)) { 2358 warnx("pfctl_load_logif: strlcpy"); 2359 return (1); 2360 } 2361 if (ioctl(pf->dev, DIOCSETSTATUSIF, &pi)) { 2362 warnx("DIOCSETSTATUSIF"); 2363 return (1); 2364 } 2365 return (0); 2366 } 2367 2368 int 2369 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid) 2370 { 2371 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 2372 return (0); 2373 2374 HTONL(hostid); 2375 2376 pf->hostid = hostid; 2377 pf->hostid_set = 1; 2378 2379 if (pf->opts & PF_OPT_VERBOSE) 2380 printf("set hostid 0x%08x\n", ntohl(hostid)); 2381 2382 return (0); 2383 } 2384 2385 int 2386 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid) 2387 { 2388 if (ioctl(dev, DIOCSETHOSTID, &hostid)) { 2389 warnx("DIOCSETHOSTID"); 2390 return (1); 2391 } 2392 return (0); 2393 } 2394 2395 int 2396 pfctl_load_syncookies(struct pfctl *pf, u_int8_t val) 2397 { 2398 struct pfctl_syncookies cookies; 2399 2400 bzero(&cookies, sizeof(cookies)); 2401 2402 cookies.mode = val; 2403 cookies.lowwater = pf->syncookieswat[0]; 2404 cookies.highwater = pf->syncookieswat[1]; 2405 2406 if (pfctl_set_syncookies(dev, &cookies)) { 2407 warnx("DIOCSETSYNCOOKIES"); 2408 return (1); 2409 } 2410 return (0); 2411 } 2412 2413 int 2414 pfctl_cfg_syncookies(struct pfctl *pf, uint8_t val, struct pfctl_watermarks *w) 2415 { 2416 if (val != PF_SYNCOOKIES_ADAPTIVE && w != NULL) { 2417 warnx("syncookies start/end only apply to adaptive"); 2418 return (1); 2419 } 2420 if (val == PF_SYNCOOKIES_ADAPTIVE && w != NULL) { 2421 if (!w->hi) 2422 w->hi = PF_SYNCOOKIES_HIWATPCT; 2423 if (!w->lo) 2424 w->lo = w->hi / 2; 2425 if (w->lo >= w->hi) { 2426 warnx("start must be higher than end"); 2427 return (1); 2428 } 2429 pf->syncookieswat[0] = w->lo; 2430 pf->syncookieswat[1] = w->hi; 2431 pf->syncookieswat_set = 1; 2432 } 2433 2434 if (pf->opts & PF_OPT_VERBOSE) { 2435 if (val == PF_SYNCOOKIES_NEVER) 2436 printf("set syncookies never\n"); 2437 else if (val == PF_SYNCOOKIES_ALWAYS) 2438 printf("set syncookies always\n"); 2439 else if (val == PF_SYNCOOKIES_ADAPTIVE) { 2440 if (pf->syncookieswat_set) 2441 printf("set syncookies adaptive (start %u%%, " 2442 "end %u%%)\n", pf->syncookieswat[1], 2443 pf->syncookieswat[0]); 2444 else 2445 printf("set syncookies adaptive\n"); 2446 } else { /* cannot happen */ 2447 warnx("king bula ate all syncookies"); 2448 return (1); 2449 } 2450 } 2451 2452 pf->syncookies = val; 2453 return (0); 2454 } 2455 2456 int 2457 pfctl_set_debug(struct pfctl *pf, char *d) 2458 { 2459 u_int32_t level; 2460 2461 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 2462 return (0); 2463 2464 if (!strcmp(d, "none")) 2465 pf->debug = PF_DEBUG_NONE; 2466 else if (!strcmp(d, "urgent")) 2467 pf->debug = PF_DEBUG_URGENT; 2468 else if (!strcmp(d, "misc")) 2469 pf->debug = PF_DEBUG_MISC; 2470 else if (!strcmp(d, "loud")) 2471 pf->debug = PF_DEBUG_NOISY; 2472 else { 2473 warnx("unknown debug level \"%s\"", d); 2474 return (-1); 2475 } 2476 2477 pf->debug_set = 1; 2478 level = pf->debug; 2479 2480 if ((pf->opts & PF_OPT_NOACTION) == 0) 2481 if (ioctl(dev, DIOCSETDEBUG, &level)) 2482 err(1, "DIOCSETDEBUG"); 2483 2484 if (pf->opts & PF_OPT_VERBOSE) 2485 printf("set debug %s\n", d); 2486 2487 return (0); 2488 } 2489 2490 int 2491 pfctl_load_debug(struct pfctl *pf, unsigned int level) 2492 { 2493 if (ioctl(pf->dev, DIOCSETDEBUG, &level)) { 2494 warnx("DIOCSETDEBUG"); 2495 return (1); 2496 } 2497 return (0); 2498 } 2499 2500 int 2501 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how) 2502 { 2503 struct pfioc_iface pi; 2504 struct node_host *h = NULL, *n = NULL; 2505 2506 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 2507 return (0); 2508 2509 bzero(&pi, sizeof(pi)); 2510 2511 pi.pfiio_flags = flags; 2512 2513 /* Make sure our cache matches the kernel. If we set or clear the flag 2514 * for a group this applies to all members. */ 2515 h = ifa_grouplookup(ifname, 0); 2516 for (n = h; n != NULL; n = n->next) 2517 pfctl_set_interface_flags(pf, n->ifname, flags, how); 2518 2519 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >= 2520 sizeof(pi.pfiio_name)) 2521 errx(1, "pfctl_set_interface_flags: strlcpy"); 2522 2523 if ((pf->opts & PF_OPT_NOACTION) == 0) { 2524 if (how == 0) { 2525 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi)) 2526 err(1, "DIOCCLRIFFLAG"); 2527 } else { 2528 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi)) 2529 err(1, "DIOCSETIFFLAG"); 2530 pfctl_check_skip_ifaces(ifname); 2531 } 2532 } 2533 return (0); 2534 } 2535 2536 void 2537 pfctl_debug(int dev, u_int32_t level, int opts) 2538 { 2539 if (ioctl(dev, DIOCSETDEBUG, &level)) 2540 err(1, "DIOCSETDEBUG"); 2541 if ((opts & PF_OPT_QUIET) == 0) { 2542 fprintf(stderr, "debug level set to '"); 2543 switch (level) { 2544 case PF_DEBUG_NONE: 2545 fprintf(stderr, "none"); 2546 break; 2547 case PF_DEBUG_URGENT: 2548 fprintf(stderr, "urgent"); 2549 break; 2550 case PF_DEBUG_MISC: 2551 fprintf(stderr, "misc"); 2552 break; 2553 case PF_DEBUG_NOISY: 2554 fprintf(stderr, "loud"); 2555 break; 2556 default: 2557 fprintf(stderr, "<invalid>"); 2558 break; 2559 } 2560 fprintf(stderr, "'\n"); 2561 } 2562 } 2563 2564 int 2565 pfctl_test_altqsupport(int dev, int opts) 2566 { 2567 struct pfioc_altq pa; 2568 2569 pa.version = PFIOC_ALTQ_VERSION; 2570 if (ioctl(dev, DIOCGETALTQS, &pa)) { 2571 if (errno == ENODEV) { 2572 if (opts & PF_OPT_VERBOSE) 2573 fprintf(stderr, "No ALTQ support in kernel\n" 2574 "ALTQ related functions disabled\n"); 2575 return (0); 2576 } else 2577 err(1, "DIOCGETALTQS"); 2578 } 2579 return (1); 2580 } 2581 2582 int 2583 pfctl_show_anchors(int dev, int opts, char *anchorname) 2584 { 2585 struct pfioc_ruleset pr; 2586 u_int32_t mnr, nr; 2587 2588 memset(&pr, 0, sizeof(pr)); 2589 memcpy(pr.path, anchorname, sizeof(pr.path)); 2590 if (ioctl(dev, DIOCGETRULESETS, &pr)) { 2591 if (errno == EINVAL) 2592 fprintf(stderr, "Anchor '%s' not found.\n", 2593 anchorname); 2594 else 2595 err(1, "DIOCGETRULESETS"); 2596 return (-1); 2597 } 2598 mnr = pr.nr; 2599 for (nr = 0; nr < mnr; ++nr) { 2600 char sub[MAXPATHLEN]; 2601 2602 pr.nr = nr; 2603 if (ioctl(dev, DIOCGETRULESET, &pr)) 2604 err(1, "DIOCGETRULESET"); 2605 if (!strcmp(pr.name, PF_RESERVED_ANCHOR)) 2606 continue; 2607 sub[0] = 0; 2608 if (pr.path[0]) { 2609 strlcat(sub, pr.path, sizeof(sub)); 2610 strlcat(sub, "/", sizeof(sub)); 2611 } 2612 strlcat(sub, pr.name, sizeof(sub)); 2613 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE)) 2614 printf(" %s\n", sub); 2615 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub)) 2616 return (-1); 2617 } 2618 return (0); 2619 } 2620 2621 int 2622 pfctl_show_eth_anchors(int dev, int opts, char *anchorname) 2623 { 2624 struct pfctl_eth_rulesets_info ri; 2625 struct pfctl_eth_ruleset_info rs; 2626 int ret; 2627 2628 if ((ret = pfctl_get_eth_rulesets_info(dev, &ri, anchorname)) != 0) { 2629 if (ret == ENOENT) 2630 fprintf(stderr, "Anchor '%s' not found.\n", 2631 anchorname); 2632 else 2633 err(1, "DIOCGETETHRULESETS"); 2634 return (-1); 2635 } 2636 2637 for (int nr = 0; nr < ri.nr; nr++) { 2638 char sub[MAXPATHLEN]; 2639 2640 if (pfctl_get_eth_ruleset(dev, anchorname, nr, &rs) != 0) 2641 err(1, "DIOCGETETHRULESET"); 2642 2643 if (!strcmp(rs.name, PF_RESERVED_ANCHOR)) 2644 continue; 2645 sub[0] = 0; 2646 if (rs.path[0]) { 2647 strlcat(sub, rs.path, sizeof(sub)); 2648 strlcat(sub, "/", sizeof(sub)); 2649 } 2650 strlcat(sub, rs.name, sizeof(sub)); 2651 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE)) 2652 printf(" %s\n", sub); 2653 if ((opts & PF_OPT_VERBOSE) && pfctl_show_eth_anchors(dev, opts, sub)) 2654 return (-1); 2655 } 2656 return (0); 2657 } 2658 2659 const char * 2660 pfctl_lookup_option(char *cmd, const char * const *list) 2661 { 2662 if (cmd != NULL && *cmd) 2663 for (; *list; list++) 2664 if (!strncmp(cmd, *list, strlen(cmd))) 2665 return (*list); 2666 return (NULL); 2667 } 2668 2669 int 2670 main(int argc, char *argv[]) 2671 { 2672 int error = 0; 2673 int ch; 2674 int mode = O_RDONLY; 2675 int opts = 0; 2676 int optimize = PF_OPTIMIZE_BASIC; 2677 char anchorname[MAXPATHLEN]; 2678 char *path; 2679 2680 if (argc < 2) 2681 usage(); 2682 2683 while ((ch = getopt(argc, argv, 2684 "a:AdD:eqf:F:ghi:k:K:mMnNOo:Pp:rRs:t:T:vx:z")) != -1) { 2685 switch (ch) { 2686 case 'a': 2687 anchoropt = optarg; 2688 break; 2689 case 'd': 2690 opts |= PF_OPT_DISABLE; 2691 mode = O_RDWR; 2692 break; 2693 case 'D': 2694 if (pfctl_cmdline_symset(optarg) < 0) 2695 warnx("could not parse macro definition %s", 2696 optarg); 2697 break; 2698 case 'e': 2699 opts |= PF_OPT_ENABLE; 2700 mode = O_RDWR; 2701 break; 2702 case 'q': 2703 opts |= PF_OPT_QUIET; 2704 break; 2705 case 'F': 2706 clearopt = pfctl_lookup_option(optarg, clearopt_list); 2707 if (clearopt == NULL) { 2708 warnx("Unknown flush modifier '%s'", optarg); 2709 usage(); 2710 } 2711 mode = O_RDWR; 2712 break; 2713 case 'i': 2714 ifaceopt = optarg; 2715 break; 2716 case 'k': 2717 if (state_killers >= 2) { 2718 warnx("can only specify -k twice"); 2719 usage(); 2720 /* NOTREACHED */ 2721 } 2722 state_kill[state_killers++] = optarg; 2723 mode = O_RDWR; 2724 break; 2725 case 'K': 2726 if (src_node_killers >= 2) { 2727 warnx("can only specify -K twice"); 2728 usage(); 2729 /* NOTREACHED */ 2730 } 2731 src_node_kill[src_node_killers++] = optarg; 2732 mode = O_RDWR; 2733 break; 2734 case 'm': 2735 opts |= PF_OPT_MERGE; 2736 break; 2737 case 'M': 2738 opts |= PF_OPT_KILLMATCH; 2739 break; 2740 case 'n': 2741 opts |= PF_OPT_NOACTION; 2742 break; 2743 case 'N': 2744 loadopt |= PFCTL_FLAG_NAT; 2745 break; 2746 case 'r': 2747 opts |= PF_OPT_USEDNS; 2748 break; 2749 case 'f': 2750 rulesopt = optarg; 2751 mode = O_RDWR; 2752 break; 2753 case 'g': 2754 opts |= PF_OPT_DEBUG; 2755 break; 2756 case 'A': 2757 loadopt |= PFCTL_FLAG_ALTQ; 2758 break; 2759 case 'R': 2760 loadopt |= PFCTL_FLAG_FILTER; 2761 break; 2762 case 'o': 2763 optiopt = pfctl_lookup_option(optarg, optiopt_list); 2764 if (optiopt == NULL) { 2765 warnx("Unknown optimization '%s'", optarg); 2766 usage(); 2767 } 2768 opts |= PF_OPT_OPTIMIZE; 2769 break; 2770 case 'O': 2771 loadopt |= PFCTL_FLAG_OPTION; 2772 break; 2773 case 'p': 2774 pf_device = optarg; 2775 break; 2776 case 'P': 2777 opts |= PF_OPT_NUMERIC; 2778 break; 2779 case 's': 2780 showopt = pfctl_lookup_option(optarg, showopt_list); 2781 if (showopt == NULL) { 2782 warnx("Unknown show modifier '%s'", optarg); 2783 usage(); 2784 } 2785 break; 2786 case 't': 2787 tableopt = optarg; 2788 break; 2789 case 'T': 2790 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list); 2791 if (tblcmdopt == NULL) { 2792 warnx("Unknown table command '%s'", optarg); 2793 usage(); 2794 } 2795 break; 2796 case 'v': 2797 if (opts & PF_OPT_VERBOSE) 2798 opts |= PF_OPT_VERBOSE2; 2799 opts |= PF_OPT_VERBOSE; 2800 break; 2801 case 'x': 2802 debugopt = pfctl_lookup_option(optarg, debugopt_list); 2803 if (debugopt == NULL) { 2804 warnx("Unknown debug level '%s'", optarg); 2805 usage(); 2806 } 2807 mode = O_RDWR; 2808 break; 2809 case 'z': 2810 opts |= PF_OPT_CLRRULECTRS; 2811 mode = O_RDWR; 2812 break; 2813 case 'h': 2814 /* FALLTHROUGH */ 2815 default: 2816 usage(); 2817 /* NOTREACHED */ 2818 } 2819 } 2820 2821 if (tblcmdopt != NULL) { 2822 argc -= optind; 2823 argv += optind; 2824 ch = *tblcmdopt; 2825 if (ch == 'l') { 2826 loadopt |= PFCTL_FLAG_TABLE; 2827 tblcmdopt = NULL; 2828 } else 2829 mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY; 2830 } else if (argc != optind) { 2831 warnx("unknown command line argument: %s ...", argv[optind]); 2832 usage(); 2833 /* NOTREACHED */ 2834 } 2835 if (loadopt == 0) 2836 loadopt = ~0; 2837 2838 if ((path = calloc(1, MAXPATHLEN)) == NULL) 2839 errx(1, "pfctl: calloc"); 2840 memset(anchorname, 0, sizeof(anchorname)); 2841 if (anchoropt != NULL) { 2842 int len = strlen(anchoropt); 2843 2844 if (anchoropt[len - 1] == '*') { 2845 if (len >= 2 && anchoropt[len - 2] == '/') 2846 anchoropt[len - 2] = '\0'; 2847 else 2848 anchoropt[len - 1] = '\0'; 2849 opts |= PF_OPT_RECURSE; 2850 } 2851 if (strlcpy(anchorname, anchoropt, 2852 sizeof(anchorname)) >= sizeof(anchorname)) 2853 errx(1, "anchor name '%s' too long", 2854 anchoropt); 2855 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE|PFCTL_FLAG_ETH; 2856 } 2857 2858 if ((opts & PF_OPT_NOACTION) == 0) { 2859 dev = open(pf_device, mode); 2860 if (dev == -1) 2861 err(1, "%s", pf_device); 2862 altqsupport = pfctl_test_altqsupport(dev, opts); 2863 } else { 2864 dev = open(pf_device, O_RDONLY); 2865 if (dev >= 0) 2866 opts |= PF_OPT_DUMMYACTION; 2867 /* turn off options */ 2868 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE); 2869 clearopt = showopt = debugopt = NULL; 2870 #if !defined(ENABLE_ALTQ) 2871 altqsupport = 0; 2872 #else 2873 altqsupport = 1; 2874 #endif 2875 } 2876 2877 if (opts & PF_OPT_DISABLE) 2878 if (pfctl_disable(dev, opts)) 2879 error = 1; 2880 2881 if (showopt != NULL) { 2882 switch (*showopt) { 2883 case 'A': 2884 pfctl_show_anchors(dev, opts, anchorname); 2885 pfctl_show_eth_anchors(dev, opts, anchorname); 2886 break; 2887 case 'r': 2888 pfctl_load_fingerprints(dev, opts); 2889 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES, 2890 anchorname, 0); 2891 break; 2892 case 'l': 2893 pfctl_load_fingerprints(dev, opts); 2894 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS, 2895 anchorname, 0); 2896 break; 2897 case 'n': 2898 pfctl_load_fingerprints(dev, opts); 2899 pfctl_show_nat(dev, path, opts, anchorname, 0); 2900 break; 2901 case 'q': 2902 pfctl_show_altq(dev, ifaceopt, opts, 2903 opts & PF_OPT_VERBOSE2); 2904 break; 2905 case 's': 2906 pfctl_show_states(dev, ifaceopt, opts); 2907 break; 2908 case 'S': 2909 pfctl_show_src_nodes(dev, opts); 2910 break; 2911 case 'i': 2912 pfctl_show_status(dev, opts); 2913 break; 2914 case 'R': 2915 error = pfctl_show_running(dev); 2916 break; 2917 case 't': 2918 pfctl_show_timeouts(dev, opts); 2919 break; 2920 case 'm': 2921 pfctl_show_limits(dev, opts); 2922 break; 2923 case 'e': 2924 pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0); 2925 break; 2926 case 'a': 2927 opts |= PF_OPT_SHOWALL; 2928 pfctl_load_fingerprints(dev, opts); 2929 2930 pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0); 2931 2932 pfctl_show_nat(dev, path, opts, anchorname, 0); 2933 pfctl_show_rules(dev, path, opts, 0, anchorname, 0); 2934 pfctl_show_altq(dev, ifaceopt, opts, 0); 2935 pfctl_show_states(dev, ifaceopt, opts); 2936 pfctl_show_src_nodes(dev, opts); 2937 pfctl_show_status(dev, opts); 2938 pfctl_show_rules(dev, path, opts, 1, anchorname, 0); 2939 pfctl_show_timeouts(dev, opts); 2940 pfctl_show_limits(dev, opts); 2941 pfctl_show_tables(anchorname, opts); 2942 pfctl_show_fingerprints(opts); 2943 break; 2944 case 'T': 2945 pfctl_show_tables(anchorname, opts); 2946 break; 2947 case 'o': 2948 pfctl_load_fingerprints(dev, opts); 2949 pfctl_show_fingerprints(opts); 2950 break; 2951 case 'I': 2952 pfctl_show_ifaces(ifaceopt, opts); 2953 break; 2954 } 2955 } 2956 2957 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL) { 2958 pfctl_show_eth_rules(dev, path, opts, PFCTL_SHOW_NOTHING, 2959 anchorname, 0); 2960 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING, 2961 anchorname, 0); 2962 } 2963 2964 if (clearopt != NULL) { 2965 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL) 2966 errx(1, "anchor names beginning with '_' cannot " 2967 "be modified from the command line"); 2968 2969 switch (*clearopt) { 2970 case 'e': 2971 pfctl_flush_eth_rules(dev, opts, anchorname); 2972 break; 2973 case 'r': 2974 pfctl_flush_rules(dev, opts, anchorname); 2975 break; 2976 case 'n': 2977 pfctl_flush_nat(dev, opts, anchorname); 2978 break; 2979 case 'q': 2980 pfctl_clear_altq(dev, opts); 2981 break; 2982 case 's': 2983 pfctl_clear_iface_states(dev, ifaceopt, opts); 2984 break; 2985 case 'S': 2986 pfctl_clear_src_nodes(dev, opts); 2987 break; 2988 case 'i': 2989 pfctl_clear_stats(dev, opts); 2990 break; 2991 case 'a': 2992 pfctl_flush_eth_rules(dev, opts, anchorname); 2993 pfctl_flush_rules(dev, opts, anchorname); 2994 pfctl_flush_nat(dev, opts, anchorname); 2995 pfctl_clear_tables(anchorname, opts); 2996 if (!*anchorname) { 2997 pfctl_clear_altq(dev, opts); 2998 pfctl_clear_iface_states(dev, ifaceopt, opts); 2999 pfctl_clear_src_nodes(dev, opts); 3000 pfctl_clear_stats(dev, opts); 3001 pfctl_clear_fingerprints(dev, opts); 3002 pfctl_clear_interface_flags(dev, opts); 3003 } 3004 break; 3005 case 'o': 3006 pfctl_clear_fingerprints(dev, opts); 3007 break; 3008 case 'T': 3009 pfctl_clear_tables(anchorname, opts); 3010 break; 3011 } 3012 } 3013 if (state_killers) { 3014 if (!strcmp(state_kill[0], "label")) 3015 pfctl_label_kill_states(dev, ifaceopt, opts); 3016 else if (!strcmp(state_kill[0], "id")) 3017 pfctl_id_kill_states(dev, ifaceopt, opts); 3018 else if (!strcmp(state_kill[0], "gateway")) 3019 pfctl_gateway_kill_states(dev, ifaceopt, opts); 3020 else 3021 pfctl_net_kill_states(dev, ifaceopt, opts); 3022 } 3023 3024 if (src_node_killers) 3025 pfctl_kill_src_nodes(dev, ifaceopt, opts); 3026 3027 if (tblcmdopt != NULL) { 3028 error = pfctl_command_tables(argc, argv, tableopt, 3029 tblcmdopt, rulesopt, anchorname, opts); 3030 rulesopt = NULL; 3031 } 3032 if (optiopt != NULL) { 3033 switch (*optiopt) { 3034 case 'n': 3035 optimize = 0; 3036 break; 3037 case 'b': 3038 optimize |= PF_OPTIMIZE_BASIC; 3039 break; 3040 case 'o': 3041 case 'p': 3042 optimize |= PF_OPTIMIZE_PROFILE; 3043 break; 3044 } 3045 } 3046 3047 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) && 3048 !anchorname[0] && !(opts & PF_OPT_NOACTION)) 3049 if (pfctl_get_skip_ifaces()) 3050 error = 1; 3051 3052 if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) && 3053 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION)) 3054 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE)) 3055 error = 1; 3056 3057 if (rulesopt != NULL) { 3058 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL) 3059 errx(1, "anchor names beginning with '_' cannot " 3060 "be modified from the command line"); 3061 if (pfctl_rules(dev, rulesopt, opts, optimize, 3062 anchorname, NULL)) 3063 error = 1; 3064 else if (!(opts & PF_OPT_NOACTION) && 3065 (loadopt & PFCTL_FLAG_TABLE)) 3066 warn_namespace_collision(NULL); 3067 } 3068 3069 if (opts & PF_OPT_ENABLE) 3070 if (pfctl_enable(dev, opts)) 3071 error = 1; 3072 3073 if (debugopt != NULL) { 3074 switch (*debugopt) { 3075 case 'n': 3076 pfctl_debug(dev, PF_DEBUG_NONE, opts); 3077 break; 3078 case 'u': 3079 pfctl_debug(dev, PF_DEBUG_URGENT, opts); 3080 break; 3081 case 'm': 3082 pfctl_debug(dev, PF_DEBUG_MISC, opts); 3083 break; 3084 case 'l': 3085 pfctl_debug(dev, PF_DEBUG_NOISY, opts); 3086 break; 3087 } 3088 } 3089 3090 exit(error); 3091 } 3092