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