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_clear_rules(int, int, char *); 79 int pfctl_clear_nat(int, int, char *); 80 int pfctl_clear_altq(int, int); 81 int pfctl_clear_src_nodes(int, int); 82 int pfctl_clear_states(int, const char *, int); 83 void pfctl_addrprefix(char *, struct pf_addr *); 84 int pfctl_kill_src_nodes(int, const char *, int); 85 int pfctl_net_kill_states(int, const char *, int); 86 int pfctl_label_kill_states(int, const char *, int); 87 int pfctl_id_kill_states(int, const char *, int); 88 void pfctl_init_options(struct pfctl *); 89 int pfctl_load_options(struct pfctl *); 90 int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int); 91 int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int); 92 int pfctl_load_debug(struct pfctl *, unsigned int); 93 int pfctl_load_logif(struct pfctl *, char *); 94 int pfctl_load_hostid(struct pfctl *, u_int32_t); 95 int pfctl_get_pool(int, struct pfctl_pool *, u_int32_t, u_int32_t, int, 96 char *); 97 void pfctl_print_rule_counters(struct pfctl_rule *, int); 98 int pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int); 99 int pfctl_show_nat(int, int, char *); 100 int pfctl_show_src_nodes(int, int); 101 int pfctl_show_states(int, const char *, int); 102 int pfctl_show_status(int, int); 103 int pfctl_show_running(int); 104 int pfctl_show_timeouts(int, int); 105 int pfctl_show_limits(int, int); 106 void pfctl_debug(int, u_int32_t, int); 107 int pfctl_test_altqsupport(int, int); 108 int pfctl_show_anchors(int, int, char *); 109 int pfctl_ruleset_trans(struct pfctl *, char *, struct pfctl_anchor *); 110 int pfctl_load_ruleset(struct pfctl *, char *, 111 struct pfctl_ruleset *, int, int); 112 int pfctl_load_rule(struct pfctl *, char *, struct pfctl_rule *, int); 113 const char *pfctl_lookup_option(char *, const char * const *); 114 115 static struct pfctl_anchor_global pf_anchors; 116 static struct pfctl_anchor pf_main_anchor; 117 static struct pfr_buffer skip_b; 118 119 static const char *clearopt; 120 static char *rulesopt; 121 static const char *showopt; 122 static const char *debugopt; 123 static char *anchoropt; 124 static const char *optiopt = NULL; 125 static const char *pf_device = "/dev/pf"; 126 static char *ifaceopt; 127 static char *tableopt; 128 static const char *tblcmdopt; 129 static int src_node_killers; 130 static char *src_node_kill[2]; 131 static int state_killers; 132 static char *state_kill[2]; 133 int loadopt; 134 int altqsupport; 135 136 int dev = -1; 137 static int first_title = 1; 138 static int labels = 0; 139 140 #define INDENT(d, o) do { \ 141 if (o) { \ 142 int i; \ 143 for (i=0; i < d; i++) \ 144 printf(" "); \ 145 } \ 146 } while (0); \ 147 148 149 static const struct { 150 const char *name; 151 int index; 152 } pf_limits[] = { 153 { "states", PF_LIMIT_STATES }, 154 { "src-nodes", PF_LIMIT_SRC_NODES }, 155 { "frags", PF_LIMIT_FRAGS }, 156 { "table-entries", PF_LIMIT_TABLE_ENTRIES }, 157 { NULL, 0 } 158 }; 159 160 struct pf_hint { 161 const char *name; 162 int timeout; 163 }; 164 static const struct pf_hint pf_hint_normal[] = { 165 { "tcp.first", 2 * 60 }, 166 { "tcp.opening", 30 }, 167 { "tcp.established", 24 * 60 * 60 }, 168 { "tcp.closing", 15 * 60 }, 169 { "tcp.finwait", 45 }, 170 { "tcp.closed", 90 }, 171 { "tcp.tsdiff", 30 }, 172 { NULL, 0 } 173 }; 174 static const struct pf_hint pf_hint_satellite[] = { 175 { "tcp.first", 3 * 60 }, 176 { "tcp.opening", 30 + 5 }, 177 { "tcp.established", 24 * 60 * 60 }, 178 { "tcp.closing", 15 * 60 + 5 }, 179 { "tcp.finwait", 45 + 5 }, 180 { "tcp.closed", 90 + 5 }, 181 { "tcp.tsdiff", 60 }, 182 { NULL, 0 } 183 }; 184 static const struct pf_hint pf_hint_conservative[] = { 185 { "tcp.first", 60 * 60 }, 186 { "tcp.opening", 15 * 60 }, 187 { "tcp.established", 5 * 24 * 60 * 60 }, 188 { "tcp.closing", 60 * 60 }, 189 { "tcp.finwait", 10 * 60 }, 190 { "tcp.closed", 3 * 60 }, 191 { "tcp.tsdiff", 60 }, 192 { NULL, 0 } 193 }; 194 static const struct pf_hint pf_hint_aggressive[] = { 195 { "tcp.first", 30 }, 196 { "tcp.opening", 5 }, 197 { "tcp.established", 5 * 60 * 60 }, 198 { "tcp.closing", 60 }, 199 { "tcp.finwait", 30 }, 200 { "tcp.closed", 30 }, 201 { "tcp.tsdiff", 10 }, 202 { NULL, 0 } 203 }; 204 205 static const struct { 206 const char *name; 207 const struct pf_hint *hint; 208 } pf_hints[] = { 209 { "normal", pf_hint_normal }, 210 { "satellite", pf_hint_satellite }, 211 { "high-latency", pf_hint_satellite }, 212 { "conservative", pf_hint_conservative }, 213 { "aggressive", pf_hint_aggressive }, 214 { NULL, NULL } 215 }; 216 217 static const char * const clearopt_list[] = { 218 "nat", "queue", "rules", "Sources", 219 "states", "info", "Tables", "osfp", "all", NULL 220 }; 221 222 static const char * const showopt_list[] = { 223 "nat", "queue", "rules", "Anchors", "Sources", "states", "info", 224 "Interfaces", "labels", "timeouts", "memory", "Tables", "osfp", 225 "Running", "all", NULL 226 }; 227 228 static const char * const tblcmdopt_list[] = { 229 "kill", "flush", "add", "delete", "load", "replace", "show", 230 "test", "zero", "expire", NULL 231 }; 232 233 static const char * const debugopt_list[] = { 234 "none", "urgent", "misc", "loud", NULL 235 }; 236 237 static const char * const optiopt_list[] = { 238 "none", "basic", "profile", NULL 239 }; 240 241 void 242 usage(void) 243 { 244 extern char *__progname; 245 246 fprintf(stderr, 247 "usage: %s [-AdeghmNnOPqRrvz] [-a anchor] [-D macro=value] [-F modifier]\n" 248 "\t[-f file] [-i interface] [-K host | network]\n" 249 "\t[-k host | network | label | id] [-o level] [-p device]\n" 250 "\t[-s modifier] [-t table -T command [address ...]] [-x level]\n", 251 __progname); 252 253 exit(1); 254 } 255 256 int 257 pfctl_enable(int dev, int opts) 258 { 259 if (ioctl(dev, DIOCSTART)) { 260 if (errno == EEXIST) 261 errx(1, "pf already enabled"); 262 else if (errno == ESRCH) 263 errx(1, "pfil registeration failed"); 264 else 265 err(1, "DIOCSTART"); 266 } 267 if ((opts & PF_OPT_QUIET) == 0) 268 fprintf(stderr, "pf enabled\n"); 269 270 if (altqsupport && ioctl(dev, DIOCSTARTALTQ)) 271 if (errno != EEXIST) 272 err(1, "DIOCSTARTALTQ"); 273 274 return (0); 275 } 276 277 int 278 pfctl_disable(int dev, int opts) 279 { 280 if (ioctl(dev, DIOCSTOP)) { 281 if (errno == ENOENT) 282 errx(1, "pf not enabled"); 283 else 284 err(1, "DIOCSTOP"); 285 } 286 if ((opts & PF_OPT_QUIET) == 0) 287 fprintf(stderr, "pf disabled\n"); 288 289 if (altqsupport && ioctl(dev, DIOCSTOPALTQ)) 290 if (errno != ENOENT) 291 err(1, "DIOCSTOPALTQ"); 292 293 return (0); 294 } 295 296 int 297 pfctl_clear_stats(int dev, int opts) 298 { 299 if (ioctl(dev, DIOCCLRSTATUS)) 300 err(1, "DIOCCLRSTATUS"); 301 if ((opts & PF_OPT_QUIET) == 0) 302 fprintf(stderr, "pf: statistics cleared\n"); 303 return (0); 304 } 305 306 int 307 pfctl_get_skip_ifaces(void) 308 { 309 bzero(&skip_b, sizeof(skip_b)); 310 skip_b.pfrb_type = PFRB_IFACES; 311 for (;;) { 312 pfr_buf_grow(&skip_b, skip_b.pfrb_size); 313 skip_b.pfrb_size = skip_b.pfrb_msize; 314 if (pfi_get_ifaces(NULL, skip_b.pfrb_caddr, &skip_b.pfrb_size)) 315 err(1, "pfi_get_ifaces"); 316 if (skip_b.pfrb_size <= skip_b.pfrb_msize) 317 break; 318 } 319 return (0); 320 } 321 322 int 323 pfctl_check_skip_ifaces(char *ifname) 324 { 325 struct pfi_kif *p; 326 struct node_host *h = NULL, *n = NULL; 327 328 PFRB_FOREACH(p, &skip_b) { 329 if (!strcmp(ifname, p->pfik_name) && 330 (p->pfik_flags & PFI_IFLAG_SKIP)) 331 p->pfik_flags &= ~PFI_IFLAG_SKIP; 332 if (!strcmp(ifname, p->pfik_name) && p->pfik_group != NULL) { 333 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL) 334 continue; 335 336 for (n = h; n != NULL; n = n->next) { 337 if (p->pfik_ifp == NULL) 338 continue; 339 if (strncmp(p->pfik_name, ifname, IFNAMSIZ)) 340 continue; 341 342 p->pfik_flags &= ~PFI_IFLAG_SKIP; 343 } 344 } 345 } 346 return (0); 347 } 348 349 int 350 pfctl_adjust_skip_ifaces(struct pfctl *pf) 351 { 352 struct pfi_kif *p, *pp; 353 struct node_host *h = NULL, *n = NULL; 354 355 PFRB_FOREACH(p, &skip_b) { 356 if (p->pfik_group == NULL || !(p->pfik_flags & PFI_IFLAG_SKIP)) 357 continue; 358 359 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0); 360 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL) 361 continue; 362 363 for (n = h; n != NULL; n = n->next) 364 PFRB_FOREACH(pp, &skip_b) { 365 if (pp->pfik_ifp == NULL) 366 continue; 367 368 if (strncmp(pp->pfik_name, n->ifname, IFNAMSIZ)) 369 continue; 370 371 if (!(pp->pfik_flags & PFI_IFLAG_SKIP)) 372 pfctl_set_interface_flags(pf, 373 pp->pfik_name, PFI_IFLAG_SKIP, 1); 374 if (pp->pfik_flags & PFI_IFLAG_SKIP) 375 pp->pfik_flags &= ~PFI_IFLAG_SKIP; 376 } 377 } 378 379 PFRB_FOREACH(p, &skip_b) { 380 if (p->pfik_ifp == NULL || ! (p->pfik_flags & PFI_IFLAG_SKIP)) 381 continue; 382 383 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0); 384 } 385 386 return (0); 387 } 388 389 int 390 pfctl_clear_interface_flags(int dev, int opts) 391 { 392 struct pfioc_iface pi; 393 394 if ((opts & PF_OPT_NOACTION) == 0) { 395 bzero(&pi, sizeof(pi)); 396 pi.pfiio_flags = PFI_IFLAG_SKIP; 397 398 if (ioctl(dev, DIOCCLRIFFLAG, &pi)) 399 err(1, "DIOCCLRIFFLAG"); 400 if ((opts & PF_OPT_QUIET) == 0) 401 fprintf(stderr, "pf: interface flags reset\n"); 402 } 403 return (0); 404 } 405 406 int 407 pfctl_clear_rules(int dev, int opts, char *anchorname) 408 { 409 struct pfr_buffer t; 410 411 memset(&t, 0, sizeof(t)); 412 t.pfrb_type = PFRB_TRANS; 413 if (pfctl_add_trans(&t, PF_RULESET_SCRUB, anchorname) || 414 pfctl_add_trans(&t, PF_RULESET_FILTER, anchorname) || 415 pfctl_trans(dev, &t, DIOCXBEGIN, 0) || 416 pfctl_trans(dev, &t, DIOCXCOMMIT, 0)) 417 err(1, "pfctl_clear_rules"); 418 if ((opts & PF_OPT_QUIET) == 0) 419 fprintf(stderr, "rules cleared\n"); 420 return (0); 421 } 422 423 int 424 pfctl_clear_nat(int dev, int opts, char *anchorname) 425 { 426 struct pfr_buffer t; 427 428 memset(&t, 0, sizeof(t)); 429 t.pfrb_type = PFRB_TRANS; 430 if (pfctl_add_trans(&t, PF_RULESET_NAT, anchorname) || 431 pfctl_add_trans(&t, PF_RULESET_BINAT, anchorname) || 432 pfctl_add_trans(&t, PF_RULESET_RDR, anchorname) || 433 pfctl_trans(dev, &t, DIOCXBEGIN, 0) || 434 pfctl_trans(dev, &t, DIOCXCOMMIT, 0)) 435 err(1, "pfctl_clear_nat"); 436 if ((opts & PF_OPT_QUIET) == 0) 437 fprintf(stderr, "nat cleared\n"); 438 return (0); 439 } 440 441 int 442 pfctl_clear_altq(int dev, int opts) 443 { 444 struct pfr_buffer t; 445 446 if (!altqsupport) 447 return (-1); 448 memset(&t, 0, sizeof(t)); 449 t.pfrb_type = PFRB_TRANS; 450 if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") || 451 pfctl_trans(dev, &t, DIOCXBEGIN, 0) || 452 pfctl_trans(dev, &t, DIOCXCOMMIT, 0)) 453 err(1, "pfctl_clear_altq"); 454 if ((opts & PF_OPT_QUIET) == 0) 455 fprintf(stderr, "altq cleared\n"); 456 return (0); 457 } 458 459 int 460 pfctl_clear_src_nodes(int dev, int opts) 461 { 462 if (ioctl(dev, DIOCCLRSRCNODES)) 463 err(1, "DIOCCLRSRCNODES"); 464 if ((opts & PF_OPT_QUIET) == 0) 465 fprintf(stderr, "source tracking entries cleared\n"); 466 return (0); 467 } 468 469 int 470 pfctl_clear_states(int dev, const char *iface, int opts) 471 { 472 struct pfioc_state_kill psk; 473 474 memset(&psk, 0, sizeof(psk)); 475 if (iface != NULL && strlcpy(psk.psk_ifname, iface, 476 sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname)) 477 errx(1, "invalid interface: %s", iface); 478 479 if (ioctl(dev, DIOCCLRSTATES, &psk)) 480 err(1, "DIOCCLRSTATES"); 481 if ((opts & PF_OPT_QUIET) == 0) 482 fprintf(stderr, "%d states cleared\n", psk.psk_killed); 483 return (0); 484 } 485 486 void 487 pfctl_addrprefix(char *addr, struct pf_addr *mask) 488 { 489 char *p; 490 const char *errstr; 491 int prefix, ret_ga, q, r; 492 struct addrinfo hints, *res; 493 494 if ((p = strchr(addr, '/')) == NULL) 495 return; 496 497 *p++ = '\0'; 498 prefix = strtonum(p, 0, 128, &errstr); 499 if (errstr) 500 errx(1, "prefix is %s: %s", errstr, p); 501 502 bzero(&hints, sizeof(hints)); 503 /* prefix only with numeric addresses */ 504 hints.ai_flags |= AI_NUMERICHOST; 505 506 if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) { 507 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga)); 508 /* NOTREACHED */ 509 } 510 511 if (res->ai_family == AF_INET && prefix > 32) 512 errx(1, "prefix too long for AF_INET"); 513 else if (res->ai_family == AF_INET6 && prefix > 128) 514 errx(1, "prefix too long for AF_INET6"); 515 516 q = prefix >> 3; 517 r = prefix & 7; 518 switch (res->ai_family) { 519 case AF_INET: 520 bzero(&mask->v4, sizeof(mask->v4)); 521 mask->v4.s_addr = htonl((u_int32_t) 522 (0xffffffffffULL << (32 - prefix))); 523 break; 524 case AF_INET6: 525 bzero(&mask->v6, sizeof(mask->v6)); 526 if (q > 0) 527 memset((void *)&mask->v6, 0xff, q); 528 if (r > 0) 529 *((u_char *)&mask->v6 + q) = 530 (0xff00 >> r) & 0xff; 531 break; 532 } 533 freeaddrinfo(res); 534 } 535 536 int 537 pfctl_kill_src_nodes(int dev, const char *iface, int opts) 538 { 539 struct pfioc_src_node_kill psnk; 540 struct addrinfo *res[2], *resp[2]; 541 struct sockaddr last_src, last_dst; 542 int killed, sources, dests; 543 int ret_ga; 544 545 killed = sources = dests = 0; 546 547 memset(&psnk, 0, sizeof(psnk)); 548 memset(&psnk.psnk_src.addr.v.a.mask, 0xff, 549 sizeof(psnk.psnk_src.addr.v.a.mask)); 550 memset(&last_src, 0xff, sizeof(last_src)); 551 memset(&last_dst, 0xff, sizeof(last_dst)); 552 553 pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask); 554 555 if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) { 556 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga)); 557 /* NOTREACHED */ 558 } 559 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) { 560 if (resp[0]->ai_addr == NULL) 561 continue; 562 /* We get lots of duplicates. Catch the easy ones */ 563 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0) 564 continue; 565 last_src = *(struct sockaddr *)resp[0]->ai_addr; 566 567 psnk.psnk_af = resp[0]->ai_family; 568 sources++; 569 570 if (psnk.psnk_af == AF_INET) 571 psnk.psnk_src.addr.v.a.addr.v4 = 572 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr; 573 else if (psnk.psnk_af == AF_INET6) 574 psnk.psnk_src.addr.v.a.addr.v6 = 575 ((struct sockaddr_in6 *)resp[0]->ai_addr)-> 576 sin6_addr; 577 else 578 errx(1, "Unknown address family %d", psnk.psnk_af); 579 580 if (src_node_killers > 1) { 581 dests = 0; 582 memset(&psnk.psnk_dst.addr.v.a.mask, 0xff, 583 sizeof(psnk.psnk_dst.addr.v.a.mask)); 584 memset(&last_dst, 0xff, sizeof(last_dst)); 585 pfctl_addrprefix(src_node_kill[1], 586 &psnk.psnk_dst.addr.v.a.mask); 587 if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL, 588 &res[1]))) { 589 errx(1, "getaddrinfo: %s", 590 gai_strerror(ret_ga)); 591 /* NOTREACHED */ 592 } 593 for (resp[1] = res[1]; resp[1]; 594 resp[1] = resp[1]->ai_next) { 595 if (resp[1]->ai_addr == NULL) 596 continue; 597 if (psnk.psnk_af != resp[1]->ai_family) 598 continue; 599 600 if (memcmp(&last_dst, resp[1]->ai_addr, 601 sizeof(last_dst)) == 0) 602 continue; 603 last_dst = *(struct sockaddr *)resp[1]->ai_addr; 604 605 dests++; 606 607 if (psnk.psnk_af == AF_INET) 608 psnk.psnk_dst.addr.v.a.addr.v4 = 609 ((struct sockaddr_in *)resp[1]-> 610 ai_addr)->sin_addr; 611 else if (psnk.psnk_af == AF_INET6) 612 psnk.psnk_dst.addr.v.a.addr.v6 = 613 ((struct sockaddr_in6 *)resp[1]-> 614 ai_addr)->sin6_addr; 615 else 616 errx(1, "Unknown address family %d", 617 psnk.psnk_af); 618 619 if (ioctl(dev, DIOCKILLSRCNODES, &psnk)) 620 err(1, "DIOCKILLSRCNODES"); 621 killed += psnk.psnk_killed; 622 } 623 freeaddrinfo(res[1]); 624 } else { 625 if (ioctl(dev, DIOCKILLSRCNODES, &psnk)) 626 err(1, "DIOCKILLSRCNODES"); 627 killed += psnk.psnk_killed; 628 } 629 } 630 631 freeaddrinfo(res[0]); 632 633 if ((opts & PF_OPT_QUIET) == 0) 634 fprintf(stderr, "killed %d src nodes from %d sources and %d " 635 "destinations\n", killed, sources, dests); 636 return (0); 637 } 638 639 int 640 pfctl_net_kill_states(int dev, const char *iface, int opts) 641 { 642 struct pfioc_state_kill psk; 643 struct addrinfo *res[2], *resp[2]; 644 struct sockaddr last_src, last_dst; 645 int killed, sources, dests; 646 int ret_ga; 647 648 killed = sources = dests = 0; 649 650 memset(&psk, 0, sizeof(psk)); 651 memset(&psk.psk_src.addr.v.a.mask, 0xff, 652 sizeof(psk.psk_src.addr.v.a.mask)); 653 memset(&last_src, 0xff, sizeof(last_src)); 654 memset(&last_dst, 0xff, sizeof(last_dst)); 655 if (iface != NULL && strlcpy(psk.psk_ifname, iface, 656 sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname)) 657 errx(1, "invalid interface: %s", iface); 658 659 pfctl_addrprefix(state_kill[0], &psk.psk_src.addr.v.a.mask); 660 661 if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) { 662 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga)); 663 /* NOTREACHED */ 664 } 665 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) { 666 if (resp[0]->ai_addr == NULL) 667 continue; 668 /* We get lots of duplicates. Catch the easy ones */ 669 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0) 670 continue; 671 last_src = *(struct sockaddr *)resp[0]->ai_addr; 672 673 psk.psk_af = resp[0]->ai_family; 674 sources++; 675 676 if (psk.psk_af == AF_INET) 677 psk.psk_src.addr.v.a.addr.v4 = 678 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr; 679 else if (psk.psk_af == AF_INET6) 680 psk.psk_src.addr.v.a.addr.v6 = 681 ((struct sockaddr_in6 *)resp[0]->ai_addr)-> 682 sin6_addr; 683 else 684 errx(1, "Unknown address family %d", psk.psk_af); 685 686 if (state_killers > 1) { 687 dests = 0; 688 memset(&psk.psk_dst.addr.v.a.mask, 0xff, 689 sizeof(psk.psk_dst.addr.v.a.mask)); 690 memset(&last_dst, 0xff, sizeof(last_dst)); 691 pfctl_addrprefix(state_kill[1], 692 &psk.psk_dst.addr.v.a.mask); 693 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL, 694 &res[1]))) { 695 errx(1, "getaddrinfo: %s", 696 gai_strerror(ret_ga)); 697 /* NOTREACHED */ 698 } 699 for (resp[1] = res[1]; resp[1]; 700 resp[1] = resp[1]->ai_next) { 701 if (resp[1]->ai_addr == NULL) 702 continue; 703 if (psk.psk_af != resp[1]->ai_family) 704 continue; 705 706 if (memcmp(&last_dst, resp[1]->ai_addr, 707 sizeof(last_dst)) == 0) 708 continue; 709 last_dst = *(struct sockaddr *)resp[1]->ai_addr; 710 711 dests++; 712 713 if (psk.psk_af == AF_INET) 714 psk.psk_dst.addr.v.a.addr.v4 = 715 ((struct sockaddr_in *)resp[1]-> 716 ai_addr)->sin_addr; 717 else if (psk.psk_af == AF_INET6) 718 psk.psk_dst.addr.v.a.addr.v6 = 719 ((struct sockaddr_in6 *)resp[1]-> 720 ai_addr)->sin6_addr; 721 else 722 errx(1, "Unknown address family %d", 723 psk.psk_af); 724 725 if (ioctl(dev, DIOCKILLSTATES, &psk)) 726 err(1, "DIOCKILLSTATES"); 727 killed += psk.psk_killed; 728 } 729 freeaddrinfo(res[1]); 730 } else { 731 if (ioctl(dev, DIOCKILLSTATES, &psk)) 732 err(1, "DIOCKILLSTATES"); 733 killed += psk.psk_killed; 734 } 735 } 736 737 freeaddrinfo(res[0]); 738 739 if ((opts & PF_OPT_QUIET) == 0) 740 fprintf(stderr, "killed %d states from %d sources and %d " 741 "destinations\n", killed, sources, dests); 742 return (0); 743 } 744 745 int 746 pfctl_label_kill_states(int dev, const char *iface, int opts) 747 { 748 struct pfioc_state_kill psk; 749 750 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) { 751 warnx("no label specified"); 752 usage(); 753 } 754 memset(&psk, 0, sizeof(psk)); 755 if (iface != NULL && strlcpy(psk.psk_ifname, iface, 756 sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname)) 757 errx(1, "invalid interface: %s", iface); 758 759 if (strlcpy(psk.psk_label, state_kill[1], sizeof(psk.psk_label)) >= 760 sizeof(psk.psk_label)) 761 errx(1, "label too long: %s", state_kill[1]); 762 763 if (ioctl(dev, DIOCKILLSTATES, &psk)) 764 err(1, "DIOCKILLSTATES"); 765 766 if ((opts & PF_OPT_QUIET) == 0) 767 fprintf(stderr, "killed %d states\n", psk.psk_killed); 768 769 return (0); 770 } 771 772 int 773 pfctl_id_kill_states(int dev, const char *iface, int opts) 774 { 775 struct pfioc_state_kill psk; 776 777 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) { 778 warnx("no id specified"); 779 usage(); 780 } 781 782 memset(&psk, 0, sizeof(psk)); 783 if ((sscanf(state_kill[1], "%jx/%x", 784 &psk.psk_pfcmp.id, &psk.psk_pfcmp.creatorid)) == 2) 785 HTONL(psk.psk_pfcmp.creatorid); 786 else if ((sscanf(state_kill[1], "%jx", &psk.psk_pfcmp.id)) == 1) { 787 psk.psk_pfcmp.creatorid = 0; 788 } else { 789 warnx("wrong id format specified"); 790 usage(); 791 } 792 if (psk.psk_pfcmp.id == 0) { 793 warnx("cannot kill id 0"); 794 usage(); 795 } 796 797 psk.psk_pfcmp.id = htobe64(psk.psk_pfcmp.id); 798 if (ioctl(dev, DIOCKILLSTATES, &psk)) 799 err(1, "DIOCKILLSTATES"); 800 801 if ((opts & PF_OPT_QUIET) == 0) 802 fprintf(stderr, "killed %d states\n", psk.psk_killed); 803 804 return (0); 805 } 806 807 int 808 pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr, 809 u_int32_t ticket, int r_action, char *anchorname) 810 { 811 struct pfioc_pooladdr pp; 812 struct pf_pooladdr *pa; 813 u_int32_t pnr, mpnr; 814 815 memset(&pp, 0, sizeof(pp)); 816 memcpy(pp.anchor, anchorname, sizeof(pp.anchor)); 817 pp.r_action = r_action; 818 pp.r_num = nr; 819 pp.ticket = ticket; 820 if (ioctl(dev, DIOCGETADDRS, &pp)) { 821 warn("DIOCGETADDRS"); 822 return (-1); 823 } 824 mpnr = pp.nr; 825 TAILQ_INIT(&pool->list); 826 for (pnr = 0; pnr < mpnr; ++pnr) { 827 pp.nr = pnr; 828 if (ioctl(dev, DIOCGETADDR, &pp)) { 829 warn("DIOCGETADDR"); 830 return (-1); 831 } 832 pa = calloc(1, sizeof(struct pf_pooladdr)); 833 if (pa == NULL) 834 err(1, "calloc"); 835 bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr)); 836 TAILQ_INSERT_TAIL(&pool->list, pa, entries); 837 } 838 839 return (0); 840 } 841 842 void 843 pfctl_move_pool(struct pfctl_pool *src, struct pfctl_pool *dst) 844 { 845 struct pf_pooladdr *pa; 846 847 while ((pa = TAILQ_FIRST(&src->list)) != NULL) { 848 TAILQ_REMOVE(&src->list, pa, entries); 849 TAILQ_INSERT_TAIL(&dst->list, pa, entries); 850 } 851 } 852 853 void 854 pfctl_clear_pool(struct pfctl_pool *pool) 855 { 856 struct pf_pooladdr *pa; 857 858 while ((pa = TAILQ_FIRST(&pool->list)) != NULL) { 859 TAILQ_REMOVE(&pool->list, pa, entries); 860 free(pa); 861 } 862 } 863 864 void 865 pfctl_print_rule_counters(struct pfctl_rule *rule, int opts) 866 { 867 if (opts & PF_OPT_DEBUG) { 868 const char *t[PF_SKIP_COUNT] = { "i", "d", "f", 869 "p", "sa", "sp", "da", "dp" }; 870 int i; 871 872 printf(" [ Skip steps: "); 873 for (i = 0; i < PF_SKIP_COUNT; ++i) { 874 if (rule->skip[i].nr == rule->nr + 1) 875 continue; 876 printf("%s=", t[i]); 877 if (rule->skip[i].nr == -1) 878 printf("end "); 879 else 880 printf("%u ", rule->skip[i].nr); 881 } 882 printf("]\n"); 883 884 printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n", 885 rule->qname, rule->qid, rule->pqname, rule->pqid); 886 } 887 if (opts & PF_OPT_VERBOSE) { 888 printf(" [ Evaluations: %-8llu Packets: %-8llu " 889 "Bytes: %-10llu States: %-6ju]\n", 890 (unsigned long long)rule->evaluations, 891 (unsigned long long)(rule->packets[0] + 892 rule->packets[1]), 893 (unsigned long long)(rule->bytes[0] + 894 rule->bytes[1]), (uintmax_t)rule->states_cur); 895 if (!(opts & PF_OPT_DEBUG)) 896 printf(" [ Inserted: uid %u pid %u " 897 "State Creations: %-6ju]\n", 898 (unsigned)rule->cuid, (unsigned)rule->cpid, 899 (uintmax_t)rule->states_tot); 900 } 901 } 902 903 void 904 pfctl_print_title(char *title) 905 { 906 if (!first_title) 907 printf("\n"); 908 first_title = 0; 909 printf("%s\n", title); 910 } 911 912 int 913 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format, 914 char *anchorname, int depth) 915 { 916 struct pfioc_rule pr; 917 struct pfctl_rule rule; 918 u_int32_t nr, mnr, header = 0; 919 int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 920 int numeric = opts & PF_OPT_NUMERIC; 921 int len = strlen(path); 922 int brace; 923 char *p; 924 925 if (path[0]) 926 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname); 927 else 928 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname); 929 930 memset(&pr, 0, sizeof(pr)); 931 memcpy(pr.anchor, path, sizeof(pr.anchor)); 932 if (opts & PF_OPT_SHOWALL) { 933 pr.rule.action = PF_PASS; 934 if (ioctl(dev, DIOCGETRULES, &pr)) { 935 warn("DIOCGETRULES"); 936 goto error; 937 } 938 header++; 939 } 940 pr.rule.action = PF_SCRUB; 941 if (ioctl(dev, DIOCGETRULES, &pr)) { 942 warn("DIOCGETRULES"); 943 goto error; 944 } 945 if (opts & PF_OPT_SHOWALL) { 946 if (format == PFCTL_SHOW_RULES && (pr.nr > 0 || header)) 947 pfctl_print_title("FILTER RULES:"); 948 else if (format == PFCTL_SHOW_LABELS && labels) 949 pfctl_print_title("LABEL COUNTERS:"); 950 } 951 mnr = pr.nr; 952 953 for (nr = 0; nr < mnr; ++nr) { 954 pr.nr = nr; 955 if (pfctl_get_clear_rule(dev, nr, pr.ticket, path, PF_SCRUB, 956 &rule, pr.anchor_call, opts & PF_OPT_CLRRULECTRS)) { 957 warn("DIOCGETRULENV"); 958 goto error; 959 } 960 961 if (pfctl_get_pool(dev, &rule.rpool, 962 nr, pr.ticket, PF_SCRUB, path) != 0) 963 goto error; 964 965 switch (format) { 966 case PFCTL_SHOW_LABELS: 967 break; 968 case PFCTL_SHOW_RULES: 969 if (rule.label[0] && (opts & PF_OPT_SHOWALL)) 970 labels = 1; 971 print_rule(&rule, pr.anchor_call, rule_numbers, numeric); 972 printf("\n"); 973 pfctl_print_rule_counters(&rule, opts); 974 break; 975 case PFCTL_SHOW_NOTHING: 976 break; 977 } 978 pfctl_clear_pool(&rule.rpool); 979 } 980 pr.rule.action = PF_PASS; 981 if (ioctl(dev, DIOCGETRULES, &pr)) { 982 warn("DIOCGETRULES"); 983 goto error; 984 } 985 mnr = pr.nr; 986 for (nr = 0; nr < mnr; ++nr) { 987 pr.nr = nr; 988 if (pfctl_get_clear_rule(dev, nr, pr.ticket, path, PF_PASS, 989 &rule, pr.anchor_call, opts & PF_OPT_CLRRULECTRS)) { 990 warn("DIOCGETRULE"); 991 goto error; 992 } 993 994 if (pfctl_get_pool(dev, &rule.rpool, 995 nr, pr.ticket, PF_PASS, path) != 0) 996 goto error; 997 998 switch (format) { 999 case PFCTL_SHOW_LABELS: 1000 if (rule.label[0]) { 1001 printf("%s %llu %llu %llu %llu" 1002 " %llu %llu %llu %ju\n", 1003 rule.label, 1004 (unsigned long long)rule.evaluations, 1005 (unsigned long long)(rule.packets[0] + 1006 rule.packets[1]), 1007 (unsigned long long)(rule.bytes[0] + 1008 rule.bytes[1]), 1009 (unsigned long long)rule.packets[0], 1010 (unsigned long long)rule.bytes[0], 1011 (unsigned long long)rule.packets[1], 1012 (unsigned long long)rule.bytes[1], 1013 (uintmax_t)rule.states_tot); 1014 } 1015 break; 1016 case PFCTL_SHOW_RULES: 1017 brace = 0; 1018 if (rule.label[0] && (opts & PF_OPT_SHOWALL)) 1019 labels = 1; 1020 INDENT(depth, !(opts & PF_OPT_VERBOSE)); 1021 if (pr.anchor_call[0] && 1022 ((((p = strrchr(pr.anchor_call, '_')) != NULL) && 1023 ((void *)p == (void *)pr.anchor_call || 1024 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) { 1025 brace++; 1026 if ((p = strrchr(pr.anchor_call, '/')) != 1027 NULL) 1028 p++; 1029 else 1030 p = &pr.anchor_call[0]; 1031 } else 1032 p = &pr.anchor_call[0]; 1033 1034 print_rule(&rule, p, rule_numbers, numeric); 1035 if (brace) 1036 printf(" {\n"); 1037 else 1038 printf("\n"); 1039 pfctl_print_rule_counters(&rule, opts); 1040 if (brace) { 1041 pfctl_show_rules(dev, path, opts, format, 1042 p, depth + 1); 1043 INDENT(depth, !(opts & PF_OPT_VERBOSE)); 1044 printf("}\n"); 1045 } 1046 break; 1047 case PFCTL_SHOW_NOTHING: 1048 break; 1049 } 1050 pfctl_clear_pool(&rule.rpool); 1051 } 1052 path[len] = '\0'; 1053 return (0); 1054 1055 error: 1056 path[len] = '\0'; 1057 return (-1); 1058 } 1059 1060 int 1061 pfctl_show_nat(int dev, int opts, char *anchorname) 1062 { 1063 struct pfioc_rule pr; 1064 struct pfctl_rule rule; 1065 u_int32_t mnr, nr; 1066 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT }; 1067 int i, dotitle = opts & PF_OPT_SHOWALL; 1068 1069 memset(&pr, 0, sizeof(pr)); 1070 memcpy(pr.anchor, anchorname, sizeof(pr.anchor)); 1071 for (i = 0; i < 3; i++) { 1072 pr.rule.action = nattype[i]; 1073 if (ioctl(dev, DIOCGETRULES, &pr)) { 1074 warn("DIOCGETRULES"); 1075 return (-1); 1076 } 1077 mnr = pr.nr; 1078 for (nr = 0; nr < mnr; ++nr) { 1079 pr.nr = nr; 1080 if (pfctl_get_rule(dev, nr, pr.ticket, anchorname, 1081 nattype[i], &rule, pr.anchor_call)) { 1082 warn("DIOCGETRULE"); 1083 return (-1); 1084 } 1085 if (pfctl_get_pool(dev, &rule.rpool, nr, 1086 pr.ticket, nattype[i], anchorname) != 0) 1087 return (-1); 1088 if (dotitle) { 1089 pfctl_print_title("TRANSLATION RULES:"); 1090 dotitle = 0; 1091 } 1092 print_rule(&rule, pr.anchor_call, 1093 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC); 1094 printf("\n"); 1095 pfctl_print_rule_counters(&rule, opts); 1096 pfctl_clear_pool(&rule.rpool); 1097 } 1098 } 1099 return (0); 1100 } 1101 1102 int 1103 pfctl_show_src_nodes(int dev, int opts) 1104 { 1105 struct pfioc_src_nodes psn; 1106 struct pf_src_node *p; 1107 char *inbuf = NULL, *newinbuf = NULL; 1108 unsigned int len = 0; 1109 int i; 1110 1111 memset(&psn, 0, sizeof(psn)); 1112 for (;;) { 1113 psn.psn_len = len; 1114 if (len) { 1115 newinbuf = realloc(inbuf, len); 1116 if (newinbuf == NULL) 1117 err(1, "realloc"); 1118 psn.psn_buf = inbuf = newinbuf; 1119 } 1120 if (ioctl(dev, DIOCGETSRCNODES, &psn) < 0) { 1121 warn("DIOCGETSRCNODES"); 1122 free(inbuf); 1123 return (-1); 1124 } 1125 if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len) 1126 break; 1127 if (len == 0 && psn.psn_len == 0) 1128 goto done; 1129 if (len == 0 && psn.psn_len != 0) 1130 len = psn.psn_len; 1131 if (psn.psn_len == 0) 1132 goto done; /* no src_nodes */ 1133 len *= 2; 1134 } 1135 p = psn.psn_src_nodes; 1136 if (psn.psn_len > 0 && (opts & PF_OPT_SHOWALL)) 1137 pfctl_print_title("SOURCE TRACKING NODES:"); 1138 for (i = 0; i < psn.psn_len; i += sizeof(*p)) { 1139 print_src_node(p, opts); 1140 p++; 1141 } 1142 done: 1143 free(inbuf); 1144 return (0); 1145 } 1146 1147 int 1148 pfctl_show_states(int dev, const char *iface, int opts) 1149 { 1150 struct pfioc_states ps; 1151 struct pfsync_state *p; 1152 char *inbuf = NULL, *newinbuf = NULL; 1153 unsigned int len = 0; 1154 int i, dotitle = (opts & PF_OPT_SHOWALL); 1155 1156 memset(&ps, 0, sizeof(ps)); 1157 for (;;) { 1158 ps.ps_len = len; 1159 if (len) { 1160 newinbuf = realloc(inbuf, len); 1161 if (newinbuf == NULL) 1162 err(1, "realloc"); 1163 ps.ps_buf = inbuf = newinbuf; 1164 } 1165 if (ioctl(dev, DIOCGETSTATES, &ps) < 0) { 1166 warn("DIOCGETSTATES"); 1167 free(inbuf); 1168 return (-1); 1169 } 1170 if (ps.ps_len + sizeof(struct pfioc_states) < len) 1171 break; 1172 if (len == 0 && ps.ps_len == 0) 1173 goto done; 1174 if (len == 0 && ps.ps_len != 0) 1175 len = ps.ps_len; 1176 if (ps.ps_len == 0) 1177 goto done; /* no states */ 1178 len *= 2; 1179 } 1180 p = ps.ps_states; 1181 for (i = 0; i < ps.ps_len; i += sizeof(*p), p++) { 1182 if (iface != NULL && strcmp(p->ifname, iface)) 1183 continue; 1184 if (dotitle) { 1185 pfctl_print_title("STATES:"); 1186 dotitle = 0; 1187 } 1188 print_state(p, opts); 1189 } 1190 done: 1191 free(inbuf); 1192 return (0); 1193 } 1194 1195 int 1196 pfctl_show_status(int dev, int opts) 1197 { 1198 struct pf_status status; 1199 1200 if (ioctl(dev, DIOCGETSTATUS, &status)) { 1201 warn("DIOCGETSTATUS"); 1202 return (-1); 1203 } 1204 if (opts & PF_OPT_SHOWALL) 1205 pfctl_print_title("INFO:"); 1206 print_status(&status, opts); 1207 return (0); 1208 } 1209 1210 int 1211 pfctl_show_running(int dev) 1212 { 1213 struct pf_status status; 1214 1215 if (ioctl(dev, DIOCGETSTATUS, &status)) { 1216 warn("DIOCGETSTATUS"); 1217 return (-1); 1218 } 1219 1220 print_running(&status); 1221 return (!status.running); 1222 } 1223 1224 int 1225 pfctl_show_timeouts(int dev, int opts) 1226 { 1227 struct pfioc_tm pt; 1228 int i; 1229 1230 if (opts & PF_OPT_SHOWALL) 1231 pfctl_print_title("TIMEOUTS:"); 1232 memset(&pt, 0, sizeof(pt)); 1233 for (i = 0; pf_timeouts[i].name; i++) { 1234 pt.timeout = pf_timeouts[i].timeout; 1235 if (ioctl(dev, DIOCGETTIMEOUT, &pt)) 1236 err(1, "DIOCGETTIMEOUT"); 1237 printf("%-20s %10d", pf_timeouts[i].name, pt.seconds); 1238 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START && 1239 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END) 1240 printf(" states"); 1241 else 1242 printf("s"); 1243 printf("\n"); 1244 } 1245 return (0); 1246 1247 } 1248 1249 int 1250 pfctl_show_limits(int dev, int opts) 1251 { 1252 struct pfioc_limit pl; 1253 int i; 1254 1255 if (opts & PF_OPT_SHOWALL) 1256 pfctl_print_title("LIMITS:"); 1257 memset(&pl, 0, sizeof(pl)); 1258 for (i = 0; pf_limits[i].name; i++) { 1259 pl.index = pf_limits[i].index; 1260 if (ioctl(dev, DIOCGETLIMIT, &pl)) 1261 err(1, "DIOCGETLIMIT"); 1262 printf("%-13s ", pf_limits[i].name); 1263 if (pl.limit == UINT_MAX) 1264 printf("unlimited\n"); 1265 else 1266 printf("hard limit %8u\n", pl.limit); 1267 } 1268 return (0); 1269 } 1270 1271 /* callbacks for rule/nat/rdr/addr */ 1272 int 1273 pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, sa_family_t af) 1274 { 1275 struct pf_pooladdr *pa; 1276 1277 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1278 if (ioctl(pf->dev, DIOCBEGINADDRS, &pf->paddr)) 1279 err(1, "DIOCBEGINADDRS"); 1280 } 1281 1282 pf->paddr.af = af; 1283 TAILQ_FOREACH(pa, &p->list, entries) { 1284 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr)); 1285 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1286 if (ioctl(pf->dev, DIOCADDADDR, &pf->paddr)) 1287 err(1, "DIOCADDADDR"); 1288 } 1289 } 1290 return (0); 1291 } 1292 1293 int 1294 pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r, 1295 const char *anchor_call) 1296 { 1297 u_int8_t rs_num; 1298 struct pfctl_rule *rule; 1299 struct pfctl_ruleset *rs; 1300 char *p; 1301 1302 rs_num = pf_get_ruleset_number(r->action); 1303 if (rs_num == PF_RULESET_MAX) 1304 errx(1, "Invalid rule type %d", r->action); 1305 1306 rs = &pf->anchor->ruleset; 1307 1308 if (anchor_call[0] && r->anchor == NULL) { 1309 /* 1310 * Don't make non-brace anchors part of the main anchor pool. 1311 */ 1312 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL) 1313 err(1, "pfctl_append_rule: calloc"); 1314 1315 pf_init_ruleset(&r->anchor->ruleset); 1316 r->anchor->ruleset.anchor = r->anchor; 1317 if (strlcpy(r->anchor->path, anchor_call, 1318 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path)) 1319 errx(1, "pfctl_append_rule: strlcpy"); 1320 if ((p = strrchr(anchor_call, '/')) != NULL) { 1321 if (!strlen(p)) 1322 err(1, "pfctl_append_rule: bad anchor name %s", 1323 anchor_call); 1324 } else 1325 p = (char *)anchor_call; 1326 if (strlcpy(r->anchor->name, p, 1327 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name)) 1328 errx(1, "pfctl_append_rule: strlcpy"); 1329 } 1330 1331 if ((rule = calloc(1, sizeof(*rule))) == NULL) 1332 err(1, "calloc"); 1333 bcopy(r, rule, sizeof(*rule)); 1334 TAILQ_INIT(&rule->rpool.list); 1335 pfctl_move_pool(&r->rpool, &rule->rpool); 1336 1337 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries); 1338 return (0); 1339 } 1340 1341 int 1342 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pfctl_anchor *a) 1343 { 1344 int osize = pf->trans->pfrb_size; 1345 1346 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) { 1347 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) || 1348 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) || 1349 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path)) 1350 return (1); 1351 } 1352 if (a == pf->astack[0] && ((altqsupport && 1353 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) { 1354 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path)) 1355 return (2); 1356 } 1357 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) { 1358 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) || 1359 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path)) 1360 return (3); 1361 } 1362 if (pf->loadopt & PFCTL_FLAG_TABLE) 1363 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path)) 1364 return (4); 1365 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize)) 1366 return (5); 1367 1368 return (0); 1369 } 1370 1371 int 1372 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pfctl_ruleset *rs, 1373 int rs_num, int depth) 1374 { 1375 struct pfctl_rule *r; 1376 int error, len = strlen(path); 1377 int brace = 0; 1378 1379 pf->anchor = rs->anchor; 1380 1381 if (path[0]) 1382 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name); 1383 else 1384 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name); 1385 1386 if (depth) { 1387 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) { 1388 brace++; 1389 if (pf->opts & PF_OPT_VERBOSE) 1390 printf(" {\n"); 1391 if ((pf->opts & PF_OPT_NOACTION) == 0 && 1392 (error = pfctl_ruleset_trans(pf, 1393 path, rs->anchor))) { 1394 printf("pfctl_load_rulesets: " 1395 "pfctl_ruleset_trans %d\n", error); 1396 goto error; 1397 } 1398 } else if (pf->opts & PF_OPT_VERBOSE) 1399 printf("\n"); 1400 1401 } 1402 1403 if (pf->optimize && rs_num == PF_RULESET_FILTER) 1404 pfctl_optimize_ruleset(pf, rs); 1405 1406 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) { 1407 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries); 1408 if ((error = pfctl_load_rule(pf, path, r, depth))) 1409 goto error; 1410 if (r->anchor) { 1411 if ((error = pfctl_load_ruleset(pf, path, 1412 &r->anchor->ruleset, rs_num, depth + 1))) 1413 goto error; 1414 } else if (pf->opts & PF_OPT_VERBOSE) 1415 printf("\n"); 1416 free(r); 1417 } 1418 if (brace && pf->opts & PF_OPT_VERBOSE) { 1419 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE)); 1420 printf("}\n"); 1421 } 1422 path[len] = '\0'; 1423 return (0); 1424 1425 error: 1426 path[len] = '\0'; 1427 return (error); 1428 1429 } 1430 1431 int 1432 pfctl_load_rule(struct pfctl *pf, char *path, struct pfctl_rule *r, int depth) 1433 { 1434 u_int8_t rs_num = pf_get_ruleset_number(r->action); 1435 char *name; 1436 u_int32_t ticket; 1437 char anchor[PF_ANCHOR_NAME_SIZE]; 1438 int len = strlen(path); 1439 1440 /* set up anchor before adding to path for anchor_call */ 1441 if ((pf->opts & PF_OPT_NOACTION) == 0) 1442 ticket = pfctl_get_ticket(pf->trans, rs_num, path); 1443 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor)) 1444 errx(1, "pfctl_load_rule: strlcpy"); 1445 1446 if (r->anchor) { 1447 if (r->anchor->match) { 1448 if (path[0]) 1449 snprintf(&path[len], MAXPATHLEN - len, 1450 "/%s", r->anchor->name); 1451 else 1452 snprintf(&path[len], MAXPATHLEN - len, 1453 "%s", r->anchor->name); 1454 name = r->anchor->name; 1455 } else 1456 name = r->anchor->path; 1457 } else 1458 name = ""; 1459 1460 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1461 if (pfctl_add_pool(pf, &r->rpool, r->af)) 1462 return (1); 1463 if (pfctl_add_rule(pf->dev, r, anchor, name, ticket, 1464 pf->paddr.ticket)) 1465 err(1, "DIOCADDRULENV"); 1466 } 1467 1468 if (pf->opts & PF_OPT_VERBOSE) { 1469 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2)); 1470 print_rule(r, r->anchor ? r->anchor->name : "", 1471 pf->opts & PF_OPT_VERBOSE2, 1472 pf->opts & PF_OPT_NUMERIC); 1473 } 1474 path[len] = '\0'; 1475 pfctl_clear_pool(&r->rpool); 1476 return (0); 1477 } 1478 1479 int 1480 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a) 1481 { 1482 if (altqsupport && 1483 (loadopt & PFCTL_FLAG_ALTQ) != 0) { 1484 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq)); 1485 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1486 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) { 1487 if (errno == ENXIO) 1488 errx(1, "qtype not configured"); 1489 else if (errno == ENODEV) 1490 errx(1, "%s: driver does not support " 1491 "altq", a->ifname); 1492 else 1493 err(1, "DIOCADDALTQ"); 1494 } 1495 } 1496 pfaltq_store(&pf->paltq->altq); 1497 } 1498 return (0); 1499 } 1500 1501 int 1502 pfctl_rules(int dev, char *filename, int opts, int optimize, 1503 char *anchorname, struct pfr_buffer *trans) 1504 { 1505 #define ERR(x) do { warn(x); goto _error; } while(0) 1506 #define ERRX(x) do { warnx(x); goto _error; } while(0) 1507 1508 struct pfr_buffer *t, buf; 1509 struct pfioc_altq pa; 1510 struct pfctl pf; 1511 struct pfctl_ruleset *rs; 1512 struct pfr_table trs; 1513 char *path; 1514 int osize; 1515 1516 RB_INIT(&pf_anchors); 1517 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor)); 1518 pf_init_ruleset(&pf_main_anchor.ruleset); 1519 pf_main_anchor.ruleset.anchor = &pf_main_anchor; 1520 if (trans == NULL) { 1521 bzero(&buf, sizeof(buf)); 1522 buf.pfrb_type = PFRB_TRANS; 1523 t = &buf; 1524 osize = 0; 1525 } else { 1526 t = trans; 1527 osize = t->pfrb_size; 1528 } 1529 1530 memset(&pa, 0, sizeof(pa)); 1531 pa.version = PFIOC_ALTQ_VERSION; 1532 memset(&pf, 0, sizeof(pf)); 1533 memset(&trs, 0, sizeof(trs)); 1534 if ((path = calloc(1, MAXPATHLEN)) == NULL) 1535 ERRX("pfctl_rules: calloc"); 1536 if (strlcpy(trs.pfrt_anchor, anchorname, 1537 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor)) 1538 ERRX("pfctl_rules: strlcpy"); 1539 pf.dev = dev; 1540 pf.opts = opts; 1541 pf.optimize = optimize; 1542 pf.loadopt = loadopt; 1543 1544 /* non-brace anchor, create without resolving the path */ 1545 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL) 1546 ERRX("pfctl_rules: calloc"); 1547 rs = &pf.anchor->ruleset; 1548 pf_init_ruleset(rs); 1549 rs->anchor = pf.anchor; 1550 if (strlcpy(pf.anchor->path, anchorname, 1551 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path)) 1552 errx(1, "pfctl_add_rule: strlcpy"); 1553 if (strlcpy(pf.anchor->name, anchorname, 1554 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name)) 1555 errx(1, "pfctl_add_rule: strlcpy"); 1556 1557 1558 pf.astack[0] = pf.anchor; 1559 pf.asd = 0; 1560 if (anchorname[0]) 1561 pf.loadopt &= ~PFCTL_FLAG_ALTQ; 1562 pf.paltq = &pa; 1563 pf.trans = t; 1564 pfctl_init_options(&pf); 1565 1566 if ((opts & PF_OPT_NOACTION) == 0) { 1567 /* 1568 * XXX For the time being we need to open transactions for 1569 * the main ruleset before parsing, because tables are still 1570 * loaded at parse time. 1571 */ 1572 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor)) 1573 ERRX("pfctl_rules"); 1574 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ)) 1575 pa.ticket = 1576 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname); 1577 if (pf.loadopt & PFCTL_FLAG_TABLE) 1578 pf.astack[0]->ruleset.tticket = 1579 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname); 1580 } 1581 1582 if (parse_config(filename, &pf) < 0) { 1583 if ((opts & PF_OPT_NOACTION) == 0) 1584 ERRX("Syntax error in config file: " 1585 "pf rules not loaded"); 1586 else 1587 goto _error; 1588 } 1589 if (loadopt & PFCTL_FLAG_OPTION) 1590 pfctl_adjust_skip_ifaces(&pf); 1591 1592 if ((pf.loadopt & PFCTL_FLAG_FILTER && 1593 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) || 1594 (pf.loadopt & PFCTL_FLAG_NAT && 1595 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) || 1596 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) || 1597 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) || 1598 (pf.loadopt & PFCTL_FLAG_FILTER && 1599 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) { 1600 if ((opts & PF_OPT_NOACTION) == 0) 1601 ERRX("Unable to load rules into kernel"); 1602 else 1603 goto _error; 1604 } 1605 1606 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0)) 1607 if (check_commit_altq(dev, opts) != 0) 1608 ERRX("errors in altq config"); 1609 1610 /* process "load anchor" directives */ 1611 if (!anchorname[0]) 1612 if (pfctl_load_anchors(dev, &pf, t) == -1) 1613 ERRX("load anchors"); 1614 1615 if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) { 1616 if (!anchorname[0]) 1617 if (pfctl_load_options(&pf)) 1618 goto _error; 1619 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize)) 1620 ERR("DIOCXCOMMIT"); 1621 } 1622 free(path); 1623 return (0); 1624 1625 _error: 1626 if (trans == NULL) { /* main ruleset */ 1627 if ((opts & PF_OPT_NOACTION) == 0) 1628 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize)) 1629 err(1, "DIOCXROLLBACK"); 1630 exit(1); 1631 } else { /* sub ruleset */ 1632 free(path); 1633 return (-1); 1634 } 1635 1636 #undef ERR 1637 #undef ERRX 1638 } 1639 1640 FILE * 1641 pfctl_fopen(const char *name, const char *mode) 1642 { 1643 struct stat st; 1644 FILE *fp; 1645 1646 fp = fopen(name, mode); 1647 if (fp == NULL) 1648 return (NULL); 1649 if (fstat(fileno(fp), &st)) { 1650 fclose(fp); 1651 return (NULL); 1652 } 1653 if (S_ISDIR(st.st_mode)) { 1654 fclose(fp); 1655 errno = EISDIR; 1656 return (NULL); 1657 } 1658 return (fp); 1659 } 1660 1661 void 1662 pfctl_init_options(struct pfctl *pf) 1663 { 1664 1665 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL; 1666 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL; 1667 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL; 1668 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL; 1669 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL; 1670 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL; 1671 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL; 1672 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL; 1673 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL; 1674 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL; 1675 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL; 1676 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL; 1677 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL; 1678 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL; 1679 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL; 1680 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL; 1681 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL; 1682 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL; 1683 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START; 1684 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END; 1685 1686 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT; 1687 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT; 1688 pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT; 1689 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT; 1690 1691 pf->debug = PF_DEBUG_URGENT; 1692 } 1693 1694 int 1695 pfctl_load_options(struct pfctl *pf) 1696 { 1697 int i, error = 0; 1698 1699 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1700 return (0); 1701 1702 /* load limits */ 1703 for (i = 0; i < PF_LIMIT_MAX; i++) { 1704 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i]) 1705 continue; 1706 if (pfctl_load_limit(pf, i, pf->limit[i])) 1707 error = 1; 1708 } 1709 1710 /* 1711 * If we've set the limit, but haven't explicitly set adaptive 1712 * timeouts, do it now with a start of 60% and end of 120%. 1713 */ 1714 if (pf->limit_set[PF_LIMIT_STATES] && 1715 !pf->timeout_set[PFTM_ADAPTIVE_START] && 1716 !pf->timeout_set[PFTM_ADAPTIVE_END]) { 1717 pf->timeout[PFTM_ADAPTIVE_START] = 1718 (pf->limit[PF_LIMIT_STATES] / 10) * 6; 1719 pf->timeout_set[PFTM_ADAPTIVE_START] = 1; 1720 pf->timeout[PFTM_ADAPTIVE_END] = 1721 (pf->limit[PF_LIMIT_STATES] / 10) * 12; 1722 pf->timeout_set[PFTM_ADAPTIVE_END] = 1; 1723 } 1724 1725 /* load timeouts */ 1726 for (i = 0; i < PFTM_MAX; i++) { 1727 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i]) 1728 continue; 1729 if (pfctl_load_timeout(pf, i, pf->timeout[i])) 1730 error = 1; 1731 } 1732 1733 /* load debug */ 1734 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set) 1735 if (pfctl_load_debug(pf, pf->debug)) 1736 error = 1; 1737 1738 /* load logif */ 1739 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set) 1740 if (pfctl_load_logif(pf, pf->ifname)) 1741 error = 1; 1742 1743 /* load hostid */ 1744 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set) 1745 if (pfctl_load_hostid(pf, pf->hostid)) 1746 error = 1; 1747 1748 return (error); 1749 } 1750 1751 int 1752 pfctl_set_limit(struct pfctl *pf, const char *opt, unsigned int limit) 1753 { 1754 int i; 1755 1756 1757 for (i = 0; pf_limits[i].name; i++) { 1758 if (strcasecmp(opt, pf_limits[i].name) == 0) { 1759 pf->limit[pf_limits[i].index] = limit; 1760 pf->limit_set[pf_limits[i].index] = 1; 1761 break; 1762 } 1763 } 1764 if (pf_limits[i].name == NULL) { 1765 warnx("Bad pool name."); 1766 return (1); 1767 } 1768 1769 if (pf->opts & PF_OPT_VERBOSE) 1770 printf("set limit %s %d\n", opt, limit); 1771 1772 return (0); 1773 } 1774 1775 int 1776 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit) 1777 { 1778 struct pfioc_limit pl; 1779 1780 memset(&pl, 0, sizeof(pl)); 1781 pl.index = index; 1782 pl.limit = limit; 1783 if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) { 1784 if (errno == EBUSY) 1785 warnx("Current pool size exceeds requested hard limit"); 1786 else 1787 warnx("DIOCSETLIMIT"); 1788 return (1); 1789 } 1790 return (0); 1791 } 1792 1793 int 1794 pfctl_set_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet) 1795 { 1796 int i; 1797 1798 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1799 return (0); 1800 1801 for (i = 0; pf_timeouts[i].name; i++) { 1802 if (strcasecmp(opt, pf_timeouts[i].name) == 0) { 1803 pf->timeout[pf_timeouts[i].timeout] = seconds; 1804 pf->timeout_set[pf_timeouts[i].timeout] = 1; 1805 break; 1806 } 1807 } 1808 1809 if (pf_timeouts[i].name == NULL) { 1810 warnx("Bad timeout name."); 1811 return (1); 1812 } 1813 1814 1815 if (pf->opts & PF_OPT_VERBOSE && ! quiet) 1816 printf("set timeout %s %d\n", opt, seconds); 1817 1818 return (0); 1819 } 1820 1821 int 1822 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds) 1823 { 1824 struct pfioc_tm pt; 1825 1826 memset(&pt, 0, sizeof(pt)); 1827 pt.timeout = timeout; 1828 pt.seconds = seconds; 1829 if (ioctl(pf->dev, DIOCSETTIMEOUT, &pt)) { 1830 warnx("DIOCSETTIMEOUT"); 1831 return (1); 1832 } 1833 return (0); 1834 } 1835 1836 int 1837 pfctl_set_optimization(struct pfctl *pf, const char *opt) 1838 { 1839 const struct pf_hint *hint; 1840 int i, r; 1841 1842 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1843 return (0); 1844 1845 for (i = 0; pf_hints[i].name; i++) 1846 if (strcasecmp(opt, pf_hints[i].name) == 0) 1847 break; 1848 1849 hint = pf_hints[i].hint; 1850 if (hint == NULL) { 1851 warnx("invalid state timeouts optimization"); 1852 return (1); 1853 } 1854 1855 for (i = 0; hint[i].name; i++) 1856 if ((r = pfctl_set_timeout(pf, hint[i].name, 1857 hint[i].timeout, 1))) 1858 return (r); 1859 1860 if (pf->opts & PF_OPT_VERBOSE) 1861 printf("set optimization %s\n", opt); 1862 1863 return (0); 1864 } 1865 1866 int 1867 pfctl_set_logif(struct pfctl *pf, char *ifname) 1868 { 1869 1870 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1871 return (0); 1872 1873 if (!strcmp(ifname, "none")) { 1874 free(pf->ifname); 1875 pf->ifname = NULL; 1876 } else { 1877 pf->ifname = strdup(ifname); 1878 if (!pf->ifname) 1879 errx(1, "pfctl_set_logif: strdup"); 1880 } 1881 pf->ifname_set = 1; 1882 1883 if (pf->opts & PF_OPT_VERBOSE) 1884 printf("set loginterface %s\n", ifname); 1885 1886 return (0); 1887 } 1888 1889 int 1890 pfctl_load_logif(struct pfctl *pf, char *ifname) 1891 { 1892 struct pfioc_if pi; 1893 1894 memset(&pi, 0, sizeof(pi)); 1895 if (ifname && strlcpy(pi.ifname, ifname, 1896 sizeof(pi.ifname)) >= sizeof(pi.ifname)) { 1897 warnx("pfctl_load_logif: strlcpy"); 1898 return (1); 1899 } 1900 if (ioctl(pf->dev, DIOCSETSTATUSIF, &pi)) { 1901 warnx("DIOCSETSTATUSIF"); 1902 return (1); 1903 } 1904 return (0); 1905 } 1906 1907 int 1908 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid) 1909 { 1910 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1911 return (0); 1912 1913 HTONL(hostid); 1914 1915 pf->hostid = hostid; 1916 pf->hostid_set = 1; 1917 1918 if (pf->opts & PF_OPT_VERBOSE) 1919 printf("set hostid 0x%08x\n", ntohl(hostid)); 1920 1921 return (0); 1922 } 1923 1924 int 1925 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid) 1926 { 1927 if (ioctl(dev, DIOCSETHOSTID, &hostid)) { 1928 warnx("DIOCSETHOSTID"); 1929 return (1); 1930 } 1931 return (0); 1932 } 1933 1934 int 1935 pfctl_set_debug(struct pfctl *pf, char *d) 1936 { 1937 u_int32_t level; 1938 1939 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1940 return (0); 1941 1942 if (!strcmp(d, "none")) 1943 pf->debug = PF_DEBUG_NONE; 1944 else if (!strcmp(d, "urgent")) 1945 pf->debug = PF_DEBUG_URGENT; 1946 else if (!strcmp(d, "misc")) 1947 pf->debug = PF_DEBUG_MISC; 1948 else if (!strcmp(d, "loud")) 1949 pf->debug = PF_DEBUG_NOISY; 1950 else { 1951 warnx("unknown debug level \"%s\"", d); 1952 return (-1); 1953 } 1954 1955 pf->debug_set = 1; 1956 level = pf->debug; 1957 1958 if ((pf->opts & PF_OPT_NOACTION) == 0) 1959 if (ioctl(dev, DIOCSETDEBUG, &level)) 1960 err(1, "DIOCSETDEBUG"); 1961 1962 if (pf->opts & PF_OPT_VERBOSE) 1963 printf("set debug %s\n", d); 1964 1965 return (0); 1966 } 1967 1968 int 1969 pfctl_load_debug(struct pfctl *pf, unsigned int level) 1970 { 1971 if (ioctl(pf->dev, DIOCSETDEBUG, &level)) { 1972 warnx("DIOCSETDEBUG"); 1973 return (1); 1974 } 1975 return (0); 1976 } 1977 1978 int 1979 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how) 1980 { 1981 struct pfioc_iface pi; 1982 struct node_host *h = NULL, *n = NULL; 1983 1984 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1985 return (0); 1986 1987 bzero(&pi, sizeof(pi)); 1988 1989 pi.pfiio_flags = flags; 1990 1991 /* Make sure our cache matches the kernel. If we set or clear the flag 1992 * for a group this applies to all members. */ 1993 h = ifa_grouplookup(ifname, 0); 1994 for (n = h; n != NULL; n = n->next) 1995 pfctl_set_interface_flags(pf, n->ifname, flags, how); 1996 1997 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >= 1998 sizeof(pi.pfiio_name)) 1999 errx(1, "pfctl_set_interface_flags: strlcpy"); 2000 2001 if ((pf->opts & PF_OPT_NOACTION) == 0) { 2002 if (how == 0) { 2003 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi)) 2004 err(1, "DIOCCLRIFFLAG"); 2005 } else { 2006 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi)) 2007 err(1, "DIOCSETIFFLAG"); 2008 pfctl_check_skip_ifaces(ifname); 2009 } 2010 } 2011 return (0); 2012 } 2013 2014 void 2015 pfctl_debug(int dev, u_int32_t level, int opts) 2016 { 2017 if (ioctl(dev, DIOCSETDEBUG, &level)) 2018 err(1, "DIOCSETDEBUG"); 2019 if ((opts & PF_OPT_QUIET) == 0) { 2020 fprintf(stderr, "debug level set to '"); 2021 switch (level) { 2022 case PF_DEBUG_NONE: 2023 fprintf(stderr, "none"); 2024 break; 2025 case PF_DEBUG_URGENT: 2026 fprintf(stderr, "urgent"); 2027 break; 2028 case PF_DEBUG_MISC: 2029 fprintf(stderr, "misc"); 2030 break; 2031 case PF_DEBUG_NOISY: 2032 fprintf(stderr, "loud"); 2033 break; 2034 default: 2035 fprintf(stderr, "<invalid>"); 2036 break; 2037 } 2038 fprintf(stderr, "'\n"); 2039 } 2040 } 2041 2042 int 2043 pfctl_test_altqsupport(int dev, int opts) 2044 { 2045 struct pfioc_altq pa; 2046 2047 pa.version = PFIOC_ALTQ_VERSION; 2048 if (ioctl(dev, DIOCGETALTQS, &pa)) { 2049 if (errno == ENODEV) { 2050 if (opts & PF_OPT_VERBOSE) 2051 fprintf(stderr, "No ALTQ support in kernel\n" 2052 "ALTQ related functions disabled\n"); 2053 return (0); 2054 } else 2055 err(1, "DIOCGETALTQS"); 2056 } 2057 return (1); 2058 } 2059 2060 int 2061 pfctl_show_anchors(int dev, int opts, char *anchorname) 2062 { 2063 struct pfioc_ruleset pr; 2064 u_int32_t mnr, nr; 2065 2066 memset(&pr, 0, sizeof(pr)); 2067 memcpy(pr.path, anchorname, sizeof(pr.path)); 2068 if (ioctl(dev, DIOCGETRULESETS, &pr)) { 2069 if (errno == EINVAL) 2070 fprintf(stderr, "Anchor '%s' not found.\n", 2071 anchorname); 2072 else 2073 err(1, "DIOCGETRULESETS"); 2074 return (-1); 2075 } 2076 mnr = pr.nr; 2077 for (nr = 0; nr < mnr; ++nr) { 2078 char sub[MAXPATHLEN]; 2079 2080 pr.nr = nr; 2081 if (ioctl(dev, DIOCGETRULESET, &pr)) 2082 err(1, "DIOCGETRULESET"); 2083 if (!strcmp(pr.name, PF_RESERVED_ANCHOR)) 2084 continue; 2085 sub[0] = 0; 2086 if (pr.path[0]) { 2087 strlcat(sub, pr.path, sizeof(sub)); 2088 strlcat(sub, "/", sizeof(sub)); 2089 } 2090 strlcat(sub, pr.name, sizeof(sub)); 2091 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE)) 2092 printf(" %s\n", sub); 2093 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub)) 2094 return (-1); 2095 } 2096 return (0); 2097 } 2098 2099 const char * 2100 pfctl_lookup_option(char *cmd, const char * const *list) 2101 { 2102 if (cmd != NULL && *cmd) 2103 for (; *list; list++) 2104 if (!strncmp(cmd, *list, strlen(cmd))) 2105 return (*list); 2106 return (NULL); 2107 } 2108 2109 int 2110 main(int argc, char *argv[]) 2111 { 2112 int error = 0; 2113 int ch; 2114 int mode = O_RDONLY; 2115 int opts = 0; 2116 int optimize = PF_OPTIMIZE_BASIC; 2117 char anchorname[MAXPATHLEN]; 2118 char *path; 2119 2120 if (argc < 2) 2121 usage(); 2122 2123 while ((ch = getopt(argc, argv, 2124 "a:AdD:eqf:F:ghi:k:K:mnNOo:Pp:rRs:t:T:vx:z")) != -1) { 2125 switch (ch) { 2126 case 'a': 2127 anchoropt = optarg; 2128 break; 2129 case 'd': 2130 opts |= PF_OPT_DISABLE; 2131 mode = O_RDWR; 2132 break; 2133 case 'D': 2134 if (pfctl_cmdline_symset(optarg) < 0) 2135 warnx("could not parse macro definition %s", 2136 optarg); 2137 break; 2138 case 'e': 2139 opts |= PF_OPT_ENABLE; 2140 mode = O_RDWR; 2141 break; 2142 case 'q': 2143 opts |= PF_OPT_QUIET; 2144 break; 2145 case 'F': 2146 clearopt = pfctl_lookup_option(optarg, clearopt_list); 2147 if (clearopt == NULL) { 2148 warnx("Unknown flush modifier '%s'", optarg); 2149 usage(); 2150 } 2151 mode = O_RDWR; 2152 break; 2153 case 'i': 2154 ifaceopt = optarg; 2155 break; 2156 case 'k': 2157 if (state_killers >= 2) { 2158 warnx("can only specify -k twice"); 2159 usage(); 2160 /* NOTREACHED */ 2161 } 2162 state_kill[state_killers++] = optarg; 2163 mode = O_RDWR; 2164 break; 2165 case 'K': 2166 if (src_node_killers >= 2) { 2167 warnx("can only specify -K twice"); 2168 usage(); 2169 /* NOTREACHED */ 2170 } 2171 src_node_kill[src_node_killers++] = optarg; 2172 mode = O_RDWR; 2173 break; 2174 case 'm': 2175 opts |= PF_OPT_MERGE; 2176 break; 2177 case 'n': 2178 opts |= PF_OPT_NOACTION; 2179 break; 2180 case 'N': 2181 loadopt |= PFCTL_FLAG_NAT; 2182 break; 2183 case 'r': 2184 opts |= PF_OPT_USEDNS; 2185 break; 2186 case 'f': 2187 rulesopt = optarg; 2188 mode = O_RDWR; 2189 break; 2190 case 'g': 2191 opts |= PF_OPT_DEBUG; 2192 break; 2193 case 'A': 2194 loadopt |= PFCTL_FLAG_ALTQ; 2195 break; 2196 case 'R': 2197 loadopt |= PFCTL_FLAG_FILTER; 2198 break; 2199 case 'o': 2200 optiopt = pfctl_lookup_option(optarg, optiopt_list); 2201 if (optiopt == NULL) { 2202 warnx("Unknown optimization '%s'", optarg); 2203 usage(); 2204 } 2205 opts |= PF_OPT_OPTIMIZE; 2206 break; 2207 case 'O': 2208 loadopt |= PFCTL_FLAG_OPTION; 2209 break; 2210 case 'p': 2211 pf_device = optarg; 2212 break; 2213 case 'P': 2214 opts |= PF_OPT_NUMERIC; 2215 break; 2216 case 's': 2217 showopt = pfctl_lookup_option(optarg, showopt_list); 2218 if (showopt == NULL) { 2219 warnx("Unknown show modifier '%s'", optarg); 2220 usage(); 2221 } 2222 break; 2223 case 't': 2224 tableopt = optarg; 2225 break; 2226 case 'T': 2227 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list); 2228 if (tblcmdopt == NULL) { 2229 warnx("Unknown table command '%s'", optarg); 2230 usage(); 2231 } 2232 break; 2233 case 'v': 2234 if (opts & PF_OPT_VERBOSE) 2235 opts |= PF_OPT_VERBOSE2; 2236 opts |= PF_OPT_VERBOSE; 2237 break; 2238 case 'x': 2239 debugopt = pfctl_lookup_option(optarg, debugopt_list); 2240 if (debugopt == NULL) { 2241 warnx("Unknown debug level '%s'", optarg); 2242 usage(); 2243 } 2244 mode = O_RDWR; 2245 break; 2246 case 'z': 2247 opts |= PF_OPT_CLRRULECTRS; 2248 mode = O_RDWR; 2249 break; 2250 case 'h': 2251 /* FALLTHROUGH */ 2252 default: 2253 usage(); 2254 /* NOTREACHED */ 2255 } 2256 } 2257 2258 if (tblcmdopt != NULL) { 2259 argc -= optind; 2260 argv += optind; 2261 ch = *tblcmdopt; 2262 if (ch == 'l') { 2263 loadopt |= PFCTL_FLAG_TABLE; 2264 tblcmdopt = NULL; 2265 } else 2266 mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY; 2267 } else if (argc != optind) { 2268 warnx("unknown command line argument: %s ...", argv[optind]); 2269 usage(); 2270 /* NOTREACHED */ 2271 } 2272 if (loadopt == 0) 2273 loadopt = ~0; 2274 2275 if ((path = calloc(1, MAXPATHLEN)) == NULL) 2276 errx(1, "pfctl: calloc"); 2277 memset(anchorname, 0, sizeof(anchorname)); 2278 if (anchoropt != NULL) { 2279 int len = strlen(anchoropt); 2280 2281 if (anchoropt[len - 1] == '*') { 2282 if (len >= 2 && anchoropt[len - 2] == '/') 2283 anchoropt[len - 2] = '\0'; 2284 else 2285 anchoropt[len - 1] = '\0'; 2286 opts |= PF_OPT_RECURSE; 2287 } 2288 if (strlcpy(anchorname, anchoropt, 2289 sizeof(anchorname)) >= sizeof(anchorname)) 2290 errx(1, "anchor name '%s' too long", 2291 anchoropt); 2292 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE; 2293 } 2294 2295 if ((opts & PF_OPT_NOACTION) == 0) { 2296 dev = open(pf_device, mode); 2297 if (dev == -1) 2298 err(1, "%s", pf_device); 2299 altqsupport = pfctl_test_altqsupport(dev, opts); 2300 } else { 2301 dev = open(pf_device, O_RDONLY); 2302 if (dev >= 0) 2303 opts |= PF_OPT_DUMMYACTION; 2304 /* turn off options */ 2305 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE); 2306 clearopt = showopt = debugopt = NULL; 2307 #if !defined(ENABLE_ALTQ) 2308 altqsupport = 0; 2309 #else 2310 altqsupport = 1; 2311 #endif 2312 } 2313 2314 if (opts & PF_OPT_DISABLE) 2315 if (pfctl_disable(dev, opts)) 2316 error = 1; 2317 2318 if (showopt != NULL) { 2319 switch (*showopt) { 2320 case 'A': 2321 pfctl_show_anchors(dev, opts, anchorname); 2322 break; 2323 case 'r': 2324 pfctl_load_fingerprints(dev, opts); 2325 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES, 2326 anchorname, 0); 2327 break; 2328 case 'l': 2329 pfctl_load_fingerprints(dev, opts); 2330 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS, 2331 anchorname, 0); 2332 break; 2333 case 'n': 2334 pfctl_load_fingerprints(dev, opts); 2335 pfctl_show_nat(dev, opts, anchorname); 2336 break; 2337 case 'q': 2338 pfctl_show_altq(dev, ifaceopt, opts, 2339 opts & PF_OPT_VERBOSE2); 2340 break; 2341 case 's': 2342 pfctl_show_states(dev, ifaceopt, opts); 2343 break; 2344 case 'S': 2345 pfctl_show_src_nodes(dev, opts); 2346 break; 2347 case 'i': 2348 pfctl_show_status(dev, opts); 2349 break; 2350 case 'R': 2351 error = pfctl_show_running(dev); 2352 break; 2353 case 't': 2354 pfctl_show_timeouts(dev, opts); 2355 break; 2356 case 'm': 2357 pfctl_show_limits(dev, opts); 2358 break; 2359 case 'a': 2360 opts |= PF_OPT_SHOWALL; 2361 pfctl_load_fingerprints(dev, opts); 2362 2363 pfctl_show_nat(dev, opts, anchorname); 2364 pfctl_show_rules(dev, path, opts, 0, anchorname, 0); 2365 pfctl_show_altq(dev, ifaceopt, opts, 0); 2366 pfctl_show_states(dev, ifaceopt, opts); 2367 pfctl_show_src_nodes(dev, opts); 2368 pfctl_show_status(dev, opts); 2369 pfctl_show_rules(dev, path, opts, 1, anchorname, 0); 2370 pfctl_show_timeouts(dev, opts); 2371 pfctl_show_limits(dev, opts); 2372 pfctl_show_tables(anchorname, opts); 2373 pfctl_show_fingerprints(opts); 2374 break; 2375 case 'T': 2376 pfctl_show_tables(anchorname, opts); 2377 break; 2378 case 'o': 2379 pfctl_load_fingerprints(dev, opts); 2380 pfctl_show_fingerprints(opts); 2381 break; 2382 case 'I': 2383 pfctl_show_ifaces(ifaceopt, opts); 2384 break; 2385 } 2386 } 2387 2388 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL) 2389 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING, 2390 anchorname, 0); 2391 2392 if (clearopt != NULL) { 2393 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL) 2394 errx(1, "anchor names beginning with '_' cannot " 2395 "be modified from the command line"); 2396 2397 switch (*clearopt) { 2398 case 'r': 2399 pfctl_clear_rules(dev, opts, anchorname); 2400 break; 2401 case 'n': 2402 pfctl_clear_nat(dev, opts, anchorname); 2403 break; 2404 case 'q': 2405 pfctl_clear_altq(dev, opts); 2406 break; 2407 case 's': 2408 pfctl_clear_states(dev, ifaceopt, opts); 2409 break; 2410 case 'S': 2411 pfctl_clear_src_nodes(dev, opts); 2412 break; 2413 case 'i': 2414 pfctl_clear_stats(dev, opts); 2415 break; 2416 case 'a': 2417 pfctl_clear_rules(dev, opts, anchorname); 2418 pfctl_clear_nat(dev, opts, anchorname); 2419 pfctl_clear_tables(anchorname, opts); 2420 if (!*anchorname) { 2421 pfctl_clear_altq(dev, opts); 2422 pfctl_clear_states(dev, ifaceopt, opts); 2423 pfctl_clear_src_nodes(dev, opts); 2424 pfctl_clear_stats(dev, opts); 2425 pfctl_clear_fingerprints(dev, opts); 2426 pfctl_clear_interface_flags(dev, opts); 2427 } 2428 break; 2429 case 'o': 2430 pfctl_clear_fingerprints(dev, opts); 2431 break; 2432 case 'T': 2433 pfctl_clear_tables(anchorname, opts); 2434 break; 2435 } 2436 } 2437 if (state_killers) { 2438 if (!strcmp(state_kill[0], "label")) 2439 pfctl_label_kill_states(dev, ifaceopt, opts); 2440 else if (!strcmp(state_kill[0], "id")) 2441 pfctl_id_kill_states(dev, ifaceopt, opts); 2442 else 2443 pfctl_net_kill_states(dev, ifaceopt, opts); 2444 } 2445 2446 if (src_node_killers) 2447 pfctl_kill_src_nodes(dev, ifaceopt, opts); 2448 2449 if (tblcmdopt != NULL) { 2450 error = pfctl_command_tables(argc, argv, tableopt, 2451 tblcmdopt, rulesopt, anchorname, opts); 2452 rulesopt = NULL; 2453 } 2454 if (optiopt != NULL) { 2455 switch (*optiopt) { 2456 case 'n': 2457 optimize = 0; 2458 break; 2459 case 'b': 2460 optimize |= PF_OPTIMIZE_BASIC; 2461 break; 2462 case 'o': 2463 case 'p': 2464 optimize |= PF_OPTIMIZE_PROFILE; 2465 break; 2466 } 2467 } 2468 2469 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) && 2470 !anchorname[0] && !(opts & PF_OPT_NOACTION)) 2471 if (pfctl_get_skip_ifaces()) 2472 error = 1; 2473 2474 if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) && 2475 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION)) 2476 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE)) 2477 error = 1; 2478 2479 if (rulesopt != NULL) { 2480 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL) 2481 errx(1, "anchor names beginning with '_' cannot " 2482 "be modified from the command line"); 2483 if (pfctl_rules(dev, rulesopt, opts, optimize, 2484 anchorname, NULL)) 2485 error = 1; 2486 else if (!(opts & PF_OPT_NOACTION) && 2487 (loadopt & PFCTL_FLAG_TABLE)) 2488 warn_namespace_collision(NULL); 2489 } 2490 2491 if (opts & PF_OPT_ENABLE) 2492 if (pfctl_enable(dev, opts)) 2493 error = 1; 2494 2495 if (debugopt != NULL) { 2496 switch (*debugopt) { 2497 case 'n': 2498 pfctl_debug(dev, PF_DEBUG_NONE, opts); 2499 break; 2500 case 'u': 2501 pfctl_debug(dev, PF_DEBUG_URGENT, opts); 2502 break; 2503 case 'm': 2504 pfctl_debug(dev, PF_DEBUG_MISC, opts); 2505 break; 2506 case 'l': 2507 pfctl_debug(dev, PF_DEBUG_NOISY, opts); 2508 break; 2509 } 2510 } 2511 2512 exit(error); 2513 } 2514