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/socket.h> 44 #include <sys/stat.h> 45 #include <sys/endian.h> 46 47 #include <net/if.h> 48 #include <netinet/in.h> 49 #include <net/pfvar.h> 50 #include <arpa/inet.h> 51 #include <net/altq/altq.h> 52 #include <sys/sysctl.h> 53 54 #include <err.h> 55 #include <errno.h> 56 #include <fcntl.h> 57 #include <limits.h> 58 #include <netdb.h> 59 #include <stdint.h> 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <unistd.h> 64 65 #include "pfctl_parser.h" 66 #include "pfctl.h" 67 68 void usage(void); 69 int pfctl_enable(int, int); 70 int pfctl_disable(int, int); 71 int pfctl_clear_stats(int, int); 72 int pfctl_get_skip_ifaces(void); 73 int pfctl_check_skip_ifaces(char *); 74 int pfctl_adjust_skip_ifaces(struct pfctl *); 75 int pfctl_clear_interface_flags(int, int); 76 int pfctl_clear_rules(int, int, char *); 77 int pfctl_clear_nat(int, int, char *); 78 int pfctl_clear_altq(int, int); 79 int pfctl_clear_src_nodes(int, int); 80 int pfctl_clear_states(int, const char *, int); 81 void pfctl_addrprefix(char *, struct pf_addr *); 82 int pfctl_kill_src_nodes(int, const char *, int); 83 int pfctl_net_kill_states(int, const char *, int); 84 int pfctl_label_kill_states(int, const char *, int); 85 int pfctl_id_kill_states(int, const char *, int); 86 void pfctl_init_options(struct pfctl *); 87 int pfctl_load_options(struct pfctl *); 88 int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int); 89 int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int); 90 int pfctl_load_debug(struct pfctl *, unsigned int); 91 int pfctl_load_logif(struct pfctl *, char *); 92 int pfctl_load_hostid(struct pfctl *, u_int32_t); 93 int pfctl_get_pool(int, struct pf_pool *, u_int32_t, u_int32_t, int, 94 char *); 95 void pfctl_print_rule_counters(struct pf_rule *, int); 96 int pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int); 97 int pfctl_show_nat(int, int, char *); 98 int pfctl_show_src_nodes(int, int); 99 int pfctl_show_states(int, const char *, int); 100 int pfctl_show_status(int, int); 101 int pfctl_show_running(int); 102 int pfctl_show_timeouts(int, int); 103 int pfctl_show_limits(int, int); 104 void pfctl_debug(int, u_int32_t, int); 105 int pfctl_test_altqsupport(int, int); 106 int pfctl_show_anchors(int, int, char *); 107 int pfctl_ruleset_trans(struct pfctl *, char *, struct pf_anchor *); 108 int pfctl_load_ruleset(struct pfctl *, char *, 109 struct pf_ruleset *, int, int); 110 int pfctl_load_rule(struct pfctl *, char *, struct pf_rule *, int); 111 const char *pfctl_lookup_option(char *, const char * const *); 112 113 static struct pf_anchor_global pf_anchors; 114 static struct pf_anchor pf_main_anchor; 115 static struct pfr_buffer skip_b; 116 117 static const char *clearopt; 118 static char *rulesopt; 119 static const char *showopt; 120 static const char *debugopt; 121 static char *anchoropt; 122 static const char *optiopt = NULL; 123 static const char *pf_device = "/dev/pf"; 124 static char *ifaceopt; 125 static char *tableopt; 126 static const char *tblcmdopt; 127 static int src_node_killers; 128 static char *src_node_kill[2]; 129 static int state_killers; 130 static char *state_kill[2]; 131 int loadopt; 132 int altqsupport; 133 134 int dev = -1; 135 static int first_title = 1; 136 static int labels = 0; 137 138 #define INDENT(d, o) do { \ 139 if (o) { \ 140 int i; \ 141 for (i=0; i < d; i++) \ 142 printf(" "); \ 143 } \ 144 } while (0); \ 145 146 147 static const struct { 148 const char *name; 149 int index; 150 } pf_limits[] = { 151 { "states", PF_LIMIT_STATES }, 152 { "src-nodes", PF_LIMIT_SRC_NODES }, 153 { "frags", PF_LIMIT_FRAGS }, 154 { "table-entries", PF_LIMIT_TABLE_ENTRIES }, 155 { NULL, 0 } 156 }; 157 158 struct pf_hint { 159 const char *name; 160 int timeout; 161 }; 162 static const struct pf_hint pf_hint_normal[] = { 163 { "tcp.first", 2 * 60 }, 164 { "tcp.opening", 30 }, 165 { "tcp.established", 24 * 60 * 60 }, 166 { "tcp.closing", 15 * 60 }, 167 { "tcp.finwait", 45 }, 168 { "tcp.closed", 90 }, 169 { "tcp.tsdiff", 30 }, 170 { NULL, 0 } 171 }; 172 static const struct pf_hint pf_hint_satellite[] = { 173 { "tcp.first", 3 * 60 }, 174 { "tcp.opening", 30 + 5 }, 175 { "tcp.established", 24 * 60 * 60 }, 176 { "tcp.closing", 15 * 60 + 5 }, 177 { "tcp.finwait", 45 + 5 }, 178 { "tcp.closed", 90 + 5 }, 179 { "tcp.tsdiff", 60 }, 180 { NULL, 0 } 181 }; 182 static const struct pf_hint pf_hint_conservative[] = { 183 { "tcp.first", 60 * 60 }, 184 { "tcp.opening", 15 * 60 }, 185 { "tcp.established", 5 * 24 * 60 * 60 }, 186 { "tcp.closing", 60 * 60 }, 187 { "tcp.finwait", 10 * 60 }, 188 { "tcp.closed", 3 * 60 }, 189 { "tcp.tsdiff", 60 }, 190 { NULL, 0 } 191 }; 192 static const struct pf_hint pf_hint_aggressive[] = { 193 { "tcp.first", 30 }, 194 { "tcp.opening", 5 }, 195 { "tcp.established", 5 * 60 * 60 }, 196 { "tcp.closing", 60 }, 197 { "tcp.finwait", 30 }, 198 { "tcp.closed", 30 }, 199 { "tcp.tsdiff", 10 }, 200 { NULL, 0 } 201 }; 202 203 static const struct { 204 const char *name; 205 const struct pf_hint *hint; 206 } pf_hints[] = { 207 { "normal", pf_hint_normal }, 208 { "satellite", pf_hint_satellite }, 209 { "high-latency", pf_hint_satellite }, 210 { "conservative", pf_hint_conservative }, 211 { "aggressive", pf_hint_aggressive }, 212 { NULL, NULL } 213 }; 214 215 static const char * const clearopt_list[] = { 216 "nat", "queue", "rules", "Sources", 217 "states", "info", "Tables", "osfp", "all", NULL 218 }; 219 220 static const char * const showopt_list[] = { 221 "nat", "queue", "rules", "Anchors", "Sources", "states", "info", 222 "Interfaces", "labels", "timeouts", "memory", "Tables", "osfp", 223 "Running", "all", NULL 224 }; 225 226 static const char * const tblcmdopt_list[] = { 227 "kill", "flush", "add", "delete", "load", "replace", "show", 228 "test", "zero", "expire", NULL 229 }; 230 231 static const char * const debugopt_list[] = { 232 "none", "urgent", "misc", "loud", NULL 233 }; 234 235 static const char * const optiopt_list[] = { 236 "none", "basic", "profile", NULL 237 }; 238 239 void 240 usage(void) 241 { 242 extern char *__progname; 243 244 fprintf(stderr, 245 "usage: %s [-AdeghmNnOPqRrvz] [-a anchor] [-D macro=value] [-F modifier]\n" 246 "\t[-f file] [-i interface] [-K host | network]\n" 247 "\t[-k host | network | label | id] [-o level] [-p device]\n" 248 "\t[-s modifier] [-t table -T command [address ...]] [-x level]\n", 249 __progname); 250 251 exit(1); 252 } 253 254 int 255 pfctl_enable(int dev, int opts) 256 { 257 if (ioctl(dev, DIOCSTART)) { 258 if (errno == EEXIST) 259 errx(1, "pf already enabled"); 260 else if (errno == ESRCH) 261 errx(1, "pfil registeration failed"); 262 else 263 err(1, "DIOCSTART"); 264 } 265 if ((opts & PF_OPT_QUIET) == 0) 266 fprintf(stderr, "pf enabled\n"); 267 268 if (altqsupport && ioctl(dev, DIOCSTARTALTQ)) 269 if (errno != EEXIST) 270 err(1, "DIOCSTARTALTQ"); 271 272 return (0); 273 } 274 275 int 276 pfctl_disable(int dev, int opts) 277 { 278 if (ioctl(dev, DIOCSTOP)) { 279 if (errno == ENOENT) 280 errx(1, "pf not enabled"); 281 else 282 err(1, "DIOCSTOP"); 283 } 284 if ((opts & PF_OPT_QUIET) == 0) 285 fprintf(stderr, "pf disabled\n"); 286 287 if (altqsupport && ioctl(dev, DIOCSTOPALTQ)) 288 if (errno != ENOENT) 289 err(1, "DIOCSTOPALTQ"); 290 291 return (0); 292 } 293 294 int 295 pfctl_clear_stats(int dev, int opts) 296 { 297 if (ioctl(dev, DIOCCLRSTATUS)) 298 err(1, "DIOCCLRSTATUS"); 299 if ((opts & PF_OPT_QUIET) == 0) 300 fprintf(stderr, "pf: statistics cleared\n"); 301 return (0); 302 } 303 304 int 305 pfctl_get_skip_ifaces(void) 306 { 307 bzero(&skip_b, sizeof(skip_b)); 308 skip_b.pfrb_type = PFRB_IFACES; 309 for (;;) { 310 pfr_buf_grow(&skip_b, skip_b.pfrb_size); 311 skip_b.pfrb_size = skip_b.pfrb_msize; 312 if (pfi_get_ifaces(NULL, skip_b.pfrb_caddr, &skip_b.pfrb_size)) 313 err(1, "pfi_get_ifaces"); 314 if (skip_b.pfrb_size <= skip_b.pfrb_msize) 315 break; 316 } 317 return (0); 318 } 319 320 int 321 pfctl_check_skip_ifaces(char *ifname) 322 { 323 struct pfi_kif *p; 324 struct node_host *h = NULL, *n = NULL; 325 326 PFRB_FOREACH(p, &skip_b) { 327 if (!strcmp(ifname, p->pfik_name) && 328 (p->pfik_flags & PFI_IFLAG_SKIP)) 329 p->pfik_flags &= ~PFI_IFLAG_SKIP; 330 if (!strcmp(ifname, p->pfik_name) && p->pfik_group != NULL) { 331 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL) 332 continue; 333 334 for (n = h; n != NULL; n = n->next) { 335 if (p->pfik_ifp == NULL) 336 continue; 337 if (strncmp(p->pfik_name, ifname, IFNAMSIZ)) 338 continue; 339 340 p->pfik_flags &= ~PFI_IFLAG_SKIP; 341 } 342 } 343 } 344 return (0); 345 } 346 347 int 348 pfctl_adjust_skip_ifaces(struct pfctl *pf) 349 { 350 struct pfi_kif *p, *pp; 351 struct node_host *h = NULL, *n = NULL; 352 353 PFRB_FOREACH(p, &skip_b) { 354 if (p->pfik_group == NULL || !(p->pfik_flags & PFI_IFLAG_SKIP)) 355 continue; 356 357 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0); 358 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL) 359 continue; 360 361 for (n = h; n != NULL; n = n->next) 362 PFRB_FOREACH(pp, &skip_b) { 363 if (pp->pfik_ifp == NULL) 364 continue; 365 366 if (strncmp(pp->pfik_name, n->ifname, IFNAMSIZ)) 367 continue; 368 369 if (!(pp->pfik_flags & PFI_IFLAG_SKIP)) 370 pfctl_set_interface_flags(pf, 371 pp->pfik_name, PFI_IFLAG_SKIP, 1); 372 if (pp->pfik_flags & PFI_IFLAG_SKIP) 373 pp->pfik_flags &= ~PFI_IFLAG_SKIP; 374 } 375 } 376 377 PFRB_FOREACH(p, &skip_b) { 378 if (p->pfik_ifp == NULL || ! (p->pfik_flags & PFI_IFLAG_SKIP)) 379 continue; 380 381 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0); 382 } 383 384 return (0); 385 } 386 387 int 388 pfctl_clear_interface_flags(int dev, int opts) 389 { 390 struct pfioc_iface pi; 391 392 if ((opts & PF_OPT_NOACTION) == 0) { 393 bzero(&pi, sizeof(pi)); 394 pi.pfiio_flags = PFI_IFLAG_SKIP; 395 396 if (ioctl(dev, DIOCCLRIFFLAG, &pi)) 397 err(1, "DIOCCLRIFFLAG"); 398 if ((opts & PF_OPT_QUIET) == 0) 399 fprintf(stderr, "pf: interface flags reset\n"); 400 } 401 return (0); 402 } 403 404 int 405 pfctl_clear_rules(int dev, int opts, char *anchorname) 406 { 407 struct pfr_buffer t; 408 409 memset(&t, 0, sizeof(t)); 410 t.pfrb_type = PFRB_TRANS; 411 if (pfctl_add_trans(&t, PF_RULESET_SCRUB, anchorname) || 412 pfctl_add_trans(&t, PF_RULESET_FILTER, anchorname) || 413 pfctl_trans(dev, &t, DIOCXBEGIN, 0) || 414 pfctl_trans(dev, &t, DIOCXCOMMIT, 0)) 415 err(1, "pfctl_clear_rules"); 416 if ((opts & PF_OPT_QUIET) == 0) 417 fprintf(stderr, "rules cleared\n"); 418 return (0); 419 } 420 421 int 422 pfctl_clear_nat(int dev, int opts, char *anchorname) 423 { 424 struct pfr_buffer t; 425 426 memset(&t, 0, sizeof(t)); 427 t.pfrb_type = PFRB_TRANS; 428 if (pfctl_add_trans(&t, PF_RULESET_NAT, anchorname) || 429 pfctl_add_trans(&t, PF_RULESET_BINAT, anchorname) || 430 pfctl_add_trans(&t, PF_RULESET_RDR, anchorname) || 431 pfctl_trans(dev, &t, DIOCXBEGIN, 0) || 432 pfctl_trans(dev, &t, DIOCXCOMMIT, 0)) 433 err(1, "pfctl_clear_nat"); 434 if ((opts & PF_OPT_QUIET) == 0) 435 fprintf(stderr, "nat cleared\n"); 436 return (0); 437 } 438 439 int 440 pfctl_clear_altq(int dev, int opts) 441 { 442 struct pfr_buffer t; 443 444 if (!altqsupport) 445 return (-1); 446 memset(&t, 0, sizeof(t)); 447 t.pfrb_type = PFRB_TRANS; 448 if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") || 449 pfctl_trans(dev, &t, DIOCXBEGIN, 0) || 450 pfctl_trans(dev, &t, DIOCXCOMMIT, 0)) 451 err(1, "pfctl_clear_altq"); 452 if ((opts & PF_OPT_QUIET) == 0) 453 fprintf(stderr, "altq cleared\n"); 454 return (0); 455 } 456 457 int 458 pfctl_clear_src_nodes(int dev, int opts) 459 { 460 if (ioctl(dev, DIOCCLRSRCNODES)) 461 err(1, "DIOCCLRSRCNODES"); 462 if ((opts & PF_OPT_QUIET) == 0) 463 fprintf(stderr, "source tracking entries cleared\n"); 464 return (0); 465 } 466 467 int 468 pfctl_clear_states(int dev, const char *iface, int opts) 469 { 470 struct pfioc_state_kill psk; 471 472 memset(&psk, 0, sizeof(psk)); 473 if (iface != NULL && strlcpy(psk.psk_ifname, iface, 474 sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname)) 475 errx(1, "invalid interface: %s", iface); 476 477 if (ioctl(dev, DIOCCLRSTATES, &psk)) 478 err(1, "DIOCCLRSTATES"); 479 if ((opts & PF_OPT_QUIET) == 0) 480 fprintf(stderr, "%d states cleared\n", psk.psk_killed); 481 return (0); 482 } 483 484 void 485 pfctl_addrprefix(char *addr, struct pf_addr *mask) 486 { 487 char *p; 488 const char *errstr; 489 int prefix, ret_ga, q, r; 490 struct addrinfo hints, *res; 491 492 if ((p = strchr(addr, '/')) == NULL) 493 return; 494 495 *p++ = '\0'; 496 prefix = strtonum(p, 0, 128, &errstr); 497 if (errstr) 498 errx(1, "prefix is %s: %s", errstr, p); 499 500 bzero(&hints, sizeof(hints)); 501 /* prefix only with numeric addresses */ 502 hints.ai_flags |= AI_NUMERICHOST; 503 504 if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) { 505 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga)); 506 /* NOTREACHED */ 507 } 508 509 if (res->ai_family == AF_INET && prefix > 32) 510 errx(1, "prefix too long for AF_INET"); 511 else if (res->ai_family == AF_INET6 && prefix > 128) 512 errx(1, "prefix too long for AF_INET6"); 513 514 q = prefix >> 3; 515 r = prefix & 7; 516 switch (res->ai_family) { 517 case AF_INET: 518 bzero(&mask->v4, sizeof(mask->v4)); 519 mask->v4.s_addr = htonl((u_int32_t) 520 (0xffffffffffULL << (32 - prefix))); 521 break; 522 case AF_INET6: 523 bzero(&mask->v6, sizeof(mask->v6)); 524 if (q > 0) 525 memset((void *)&mask->v6, 0xff, q); 526 if (r > 0) 527 *((u_char *)&mask->v6 + q) = 528 (0xff00 >> r) & 0xff; 529 break; 530 } 531 freeaddrinfo(res); 532 } 533 534 int 535 pfctl_kill_src_nodes(int dev, const char *iface, int opts) 536 { 537 struct pfioc_src_node_kill psnk; 538 struct addrinfo *res[2], *resp[2]; 539 struct sockaddr last_src, last_dst; 540 int killed, sources, dests; 541 int ret_ga; 542 543 killed = sources = dests = 0; 544 545 memset(&psnk, 0, sizeof(psnk)); 546 memset(&psnk.psnk_src.addr.v.a.mask, 0xff, 547 sizeof(psnk.psnk_src.addr.v.a.mask)); 548 memset(&last_src, 0xff, sizeof(last_src)); 549 memset(&last_dst, 0xff, sizeof(last_dst)); 550 551 pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask); 552 553 if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) { 554 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga)); 555 /* NOTREACHED */ 556 } 557 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) { 558 if (resp[0]->ai_addr == NULL) 559 continue; 560 /* We get lots of duplicates. Catch the easy ones */ 561 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0) 562 continue; 563 last_src = *(struct sockaddr *)resp[0]->ai_addr; 564 565 psnk.psnk_af = resp[0]->ai_family; 566 sources++; 567 568 if (psnk.psnk_af == AF_INET) 569 psnk.psnk_src.addr.v.a.addr.v4 = 570 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr; 571 else if (psnk.psnk_af == AF_INET6) 572 psnk.psnk_src.addr.v.a.addr.v6 = 573 ((struct sockaddr_in6 *)resp[0]->ai_addr)-> 574 sin6_addr; 575 else 576 errx(1, "Unknown address family %d", psnk.psnk_af); 577 578 if (src_node_killers > 1) { 579 dests = 0; 580 memset(&psnk.psnk_dst.addr.v.a.mask, 0xff, 581 sizeof(psnk.psnk_dst.addr.v.a.mask)); 582 memset(&last_dst, 0xff, sizeof(last_dst)); 583 pfctl_addrprefix(src_node_kill[1], 584 &psnk.psnk_dst.addr.v.a.mask); 585 if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL, 586 &res[1]))) { 587 errx(1, "getaddrinfo: %s", 588 gai_strerror(ret_ga)); 589 /* NOTREACHED */ 590 } 591 for (resp[1] = res[1]; resp[1]; 592 resp[1] = resp[1]->ai_next) { 593 if (resp[1]->ai_addr == NULL) 594 continue; 595 if (psnk.psnk_af != resp[1]->ai_family) 596 continue; 597 598 if (memcmp(&last_dst, resp[1]->ai_addr, 599 sizeof(last_dst)) == 0) 600 continue; 601 last_dst = *(struct sockaddr *)resp[1]->ai_addr; 602 603 dests++; 604 605 if (psnk.psnk_af == AF_INET) 606 psnk.psnk_dst.addr.v.a.addr.v4 = 607 ((struct sockaddr_in *)resp[1]-> 608 ai_addr)->sin_addr; 609 else if (psnk.psnk_af == AF_INET6) 610 psnk.psnk_dst.addr.v.a.addr.v6 = 611 ((struct sockaddr_in6 *)resp[1]-> 612 ai_addr)->sin6_addr; 613 else 614 errx(1, "Unknown address family %d", 615 psnk.psnk_af); 616 617 if (ioctl(dev, DIOCKILLSRCNODES, &psnk)) 618 err(1, "DIOCKILLSRCNODES"); 619 killed += psnk.psnk_killed; 620 } 621 freeaddrinfo(res[1]); 622 } else { 623 if (ioctl(dev, DIOCKILLSRCNODES, &psnk)) 624 err(1, "DIOCKILLSRCNODES"); 625 killed += psnk.psnk_killed; 626 } 627 } 628 629 freeaddrinfo(res[0]); 630 631 if ((opts & PF_OPT_QUIET) == 0) 632 fprintf(stderr, "killed %d src nodes from %d sources and %d " 633 "destinations\n", killed, sources, dests); 634 return (0); 635 } 636 637 int 638 pfctl_net_kill_states(int dev, const char *iface, int opts) 639 { 640 struct pfioc_state_kill psk; 641 struct addrinfo *res[2], *resp[2]; 642 struct sockaddr last_src, last_dst; 643 int killed, sources, dests; 644 int ret_ga; 645 646 killed = sources = dests = 0; 647 648 memset(&psk, 0, sizeof(psk)); 649 memset(&psk.psk_src.addr.v.a.mask, 0xff, 650 sizeof(psk.psk_src.addr.v.a.mask)); 651 memset(&last_src, 0xff, sizeof(last_src)); 652 memset(&last_dst, 0xff, sizeof(last_dst)); 653 if (iface != NULL && strlcpy(psk.psk_ifname, iface, 654 sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname)) 655 errx(1, "invalid interface: %s", iface); 656 657 pfctl_addrprefix(state_kill[0], &psk.psk_src.addr.v.a.mask); 658 659 if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) { 660 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga)); 661 /* NOTREACHED */ 662 } 663 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) { 664 if (resp[0]->ai_addr == NULL) 665 continue; 666 /* We get lots of duplicates. Catch the easy ones */ 667 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0) 668 continue; 669 last_src = *(struct sockaddr *)resp[0]->ai_addr; 670 671 psk.psk_af = resp[0]->ai_family; 672 sources++; 673 674 if (psk.psk_af == AF_INET) 675 psk.psk_src.addr.v.a.addr.v4 = 676 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr; 677 else if (psk.psk_af == AF_INET6) 678 psk.psk_src.addr.v.a.addr.v6 = 679 ((struct sockaddr_in6 *)resp[0]->ai_addr)-> 680 sin6_addr; 681 else 682 errx(1, "Unknown address family %d", psk.psk_af); 683 684 if (state_killers > 1) { 685 dests = 0; 686 memset(&psk.psk_dst.addr.v.a.mask, 0xff, 687 sizeof(psk.psk_dst.addr.v.a.mask)); 688 memset(&last_dst, 0xff, sizeof(last_dst)); 689 pfctl_addrprefix(state_kill[1], 690 &psk.psk_dst.addr.v.a.mask); 691 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL, 692 &res[1]))) { 693 errx(1, "getaddrinfo: %s", 694 gai_strerror(ret_ga)); 695 /* NOTREACHED */ 696 } 697 for (resp[1] = res[1]; resp[1]; 698 resp[1] = resp[1]->ai_next) { 699 if (resp[1]->ai_addr == NULL) 700 continue; 701 if (psk.psk_af != resp[1]->ai_family) 702 continue; 703 704 if (memcmp(&last_dst, resp[1]->ai_addr, 705 sizeof(last_dst)) == 0) 706 continue; 707 last_dst = *(struct sockaddr *)resp[1]->ai_addr; 708 709 dests++; 710 711 if (psk.psk_af == AF_INET) 712 psk.psk_dst.addr.v.a.addr.v4 = 713 ((struct sockaddr_in *)resp[1]-> 714 ai_addr)->sin_addr; 715 else if (psk.psk_af == AF_INET6) 716 psk.psk_dst.addr.v.a.addr.v6 = 717 ((struct sockaddr_in6 *)resp[1]-> 718 ai_addr)->sin6_addr; 719 else 720 errx(1, "Unknown address family %d", 721 psk.psk_af); 722 723 if (ioctl(dev, DIOCKILLSTATES, &psk)) 724 err(1, "DIOCKILLSTATES"); 725 killed += psk.psk_killed; 726 } 727 freeaddrinfo(res[1]); 728 } else { 729 if (ioctl(dev, DIOCKILLSTATES, &psk)) 730 err(1, "DIOCKILLSTATES"); 731 killed += psk.psk_killed; 732 } 733 } 734 735 freeaddrinfo(res[0]); 736 737 if ((opts & PF_OPT_QUIET) == 0) 738 fprintf(stderr, "killed %d states from %d sources and %d " 739 "destinations\n", killed, sources, dests); 740 return (0); 741 } 742 743 int 744 pfctl_label_kill_states(int dev, const char *iface, int opts) 745 { 746 struct pfioc_state_kill psk; 747 748 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) { 749 warnx("no label specified"); 750 usage(); 751 } 752 memset(&psk, 0, sizeof(psk)); 753 if (iface != NULL && strlcpy(psk.psk_ifname, iface, 754 sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname)) 755 errx(1, "invalid interface: %s", iface); 756 757 if (strlcpy(psk.psk_label, state_kill[1], sizeof(psk.psk_label)) >= 758 sizeof(psk.psk_label)) 759 errx(1, "label too long: %s", state_kill[1]); 760 761 if (ioctl(dev, DIOCKILLSTATES, &psk)) 762 err(1, "DIOCKILLSTATES"); 763 764 if ((opts & PF_OPT_QUIET) == 0) 765 fprintf(stderr, "killed %d states\n", psk.psk_killed); 766 767 return (0); 768 } 769 770 int 771 pfctl_id_kill_states(int dev, const char *iface, int opts) 772 { 773 struct pfioc_state_kill psk; 774 775 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) { 776 warnx("no id specified"); 777 usage(); 778 } 779 780 memset(&psk, 0, sizeof(psk)); 781 if ((sscanf(state_kill[1], "%jx/%x", 782 &psk.psk_pfcmp.id, &psk.psk_pfcmp.creatorid)) == 2) 783 HTONL(psk.psk_pfcmp.creatorid); 784 else if ((sscanf(state_kill[1], "%jx", &psk.psk_pfcmp.id)) == 1) { 785 psk.psk_pfcmp.creatorid = 0; 786 } else { 787 warnx("wrong id format specified"); 788 usage(); 789 } 790 if (psk.psk_pfcmp.id == 0) { 791 warnx("cannot kill id 0"); 792 usage(); 793 } 794 795 psk.psk_pfcmp.id = htobe64(psk.psk_pfcmp.id); 796 if (ioctl(dev, DIOCKILLSTATES, &psk)) 797 err(1, "DIOCKILLSTATES"); 798 799 if ((opts & PF_OPT_QUIET) == 0) 800 fprintf(stderr, "killed %d states\n", psk.psk_killed); 801 802 return (0); 803 } 804 805 int 806 pfctl_get_pool(int dev, struct pf_pool *pool, u_int32_t nr, 807 u_int32_t ticket, int r_action, char *anchorname) 808 { 809 struct pfioc_pooladdr pp; 810 struct pf_pooladdr *pa; 811 u_int32_t pnr, mpnr; 812 813 memset(&pp, 0, sizeof(pp)); 814 memcpy(pp.anchor, anchorname, sizeof(pp.anchor)); 815 pp.r_action = r_action; 816 pp.r_num = nr; 817 pp.ticket = ticket; 818 if (ioctl(dev, DIOCGETADDRS, &pp)) { 819 warn("DIOCGETADDRS"); 820 return (-1); 821 } 822 mpnr = pp.nr; 823 TAILQ_INIT(&pool->list); 824 for (pnr = 0; pnr < mpnr; ++pnr) { 825 pp.nr = pnr; 826 if (ioctl(dev, DIOCGETADDR, &pp)) { 827 warn("DIOCGETADDR"); 828 return (-1); 829 } 830 pa = calloc(1, sizeof(struct pf_pooladdr)); 831 if (pa == NULL) 832 err(1, "calloc"); 833 bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr)); 834 TAILQ_INSERT_TAIL(&pool->list, pa, entries); 835 } 836 837 return (0); 838 } 839 840 void 841 pfctl_move_pool(struct pf_pool *src, struct pf_pool *dst) 842 { 843 struct pf_pooladdr *pa; 844 845 while ((pa = TAILQ_FIRST(&src->list)) != NULL) { 846 TAILQ_REMOVE(&src->list, pa, entries); 847 TAILQ_INSERT_TAIL(&dst->list, pa, entries); 848 } 849 } 850 851 void 852 pfctl_clear_pool(struct pf_pool *pool) 853 { 854 struct pf_pooladdr *pa; 855 856 while ((pa = TAILQ_FIRST(&pool->list)) != NULL) { 857 TAILQ_REMOVE(&pool->list, pa, entries); 858 free(pa); 859 } 860 } 861 862 void 863 pfctl_print_rule_counters(struct pf_rule *rule, int opts) 864 { 865 if (opts & PF_OPT_DEBUG) { 866 const char *t[PF_SKIP_COUNT] = { "i", "d", "f", 867 "p", "sa", "sp", "da", "dp" }; 868 int i; 869 870 printf(" [ Skip steps: "); 871 for (i = 0; i < PF_SKIP_COUNT; ++i) { 872 if (rule->skip[i].nr == rule->nr + 1) 873 continue; 874 printf("%s=", t[i]); 875 if (rule->skip[i].nr == -1) 876 printf("end "); 877 else 878 printf("%u ", rule->skip[i].nr); 879 } 880 printf("]\n"); 881 882 printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n", 883 rule->qname, rule->qid, rule->pqname, rule->pqid); 884 } 885 if (opts & PF_OPT_VERBOSE) { 886 printf(" [ Evaluations: %-8llu Packets: %-8llu " 887 "Bytes: %-10llu States: %-6ju]\n", 888 (unsigned long long)rule->evaluations, 889 (unsigned long long)(rule->packets[0] + 890 rule->packets[1]), 891 (unsigned long long)(rule->bytes[0] + 892 rule->bytes[1]), (uintmax_t)rule->u_states_cur); 893 if (!(opts & PF_OPT_DEBUG)) 894 printf(" [ Inserted: uid %u pid %u " 895 "State Creations: %-6ju]\n", 896 (unsigned)rule->cuid, (unsigned)rule->cpid, 897 (uintmax_t)rule->u_states_tot); 898 } 899 } 900 901 void 902 pfctl_print_title(char *title) 903 { 904 if (!first_title) 905 printf("\n"); 906 first_title = 0; 907 printf("%s\n", title); 908 } 909 910 int 911 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format, 912 char *anchorname, int depth) 913 { 914 struct pfioc_rule pr; 915 u_int32_t nr, mnr, header = 0; 916 int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG); 917 int numeric = opts & PF_OPT_NUMERIC; 918 int len = strlen(path); 919 int brace; 920 char *p; 921 922 if (path[0]) 923 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname); 924 else 925 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname); 926 927 memset(&pr, 0, sizeof(pr)); 928 memcpy(pr.anchor, path, sizeof(pr.anchor)); 929 if (opts & PF_OPT_SHOWALL) { 930 pr.rule.action = PF_PASS; 931 if (ioctl(dev, DIOCGETRULES, &pr)) { 932 warn("DIOCGETRULES"); 933 goto error; 934 } 935 header++; 936 } 937 pr.rule.action = PF_SCRUB; 938 if (ioctl(dev, DIOCGETRULES, &pr)) { 939 warn("DIOCGETRULES"); 940 goto error; 941 } 942 if (opts & PF_OPT_SHOWALL) { 943 if (format == PFCTL_SHOW_RULES && (pr.nr > 0 || header)) 944 pfctl_print_title("FILTER RULES:"); 945 else if (format == PFCTL_SHOW_LABELS && labels) 946 pfctl_print_title("LABEL COUNTERS:"); 947 } 948 mnr = pr.nr; 949 if (opts & PF_OPT_CLRRULECTRS) 950 pr.action = PF_GET_CLR_CNTR; 951 952 for (nr = 0; nr < mnr; ++nr) { 953 pr.nr = nr; 954 if (ioctl(dev, DIOCGETRULE, &pr)) { 955 warn("DIOCGETRULE"); 956 goto error; 957 } 958 959 if (pfctl_get_pool(dev, &pr.rule.rpool, 960 nr, pr.ticket, PF_SCRUB, path) != 0) 961 goto error; 962 963 switch (format) { 964 case PFCTL_SHOW_LABELS: 965 break; 966 case PFCTL_SHOW_RULES: 967 if (pr.rule.label[0] && (opts & PF_OPT_SHOWALL)) 968 labels = 1; 969 print_rule(&pr.rule, pr.anchor_call, rule_numbers, numeric); 970 printf("\n"); 971 pfctl_print_rule_counters(&pr.rule, opts); 972 break; 973 case PFCTL_SHOW_NOTHING: 974 break; 975 } 976 pfctl_clear_pool(&pr.rule.rpool); 977 } 978 pr.rule.action = PF_PASS; 979 if (ioctl(dev, DIOCGETRULES, &pr)) { 980 warn("DIOCGETRULES"); 981 goto error; 982 } 983 mnr = pr.nr; 984 for (nr = 0; nr < mnr; ++nr) { 985 pr.nr = nr; 986 if (ioctl(dev, DIOCGETRULE, &pr)) { 987 warn("DIOCGETRULE"); 988 goto error; 989 } 990 991 if (pfctl_get_pool(dev, &pr.rule.rpool, 992 nr, pr.ticket, PF_PASS, path) != 0) 993 goto error; 994 995 switch (format) { 996 case PFCTL_SHOW_LABELS: 997 if (pr.rule.label[0]) { 998 printf("%s %llu %llu %llu %llu" 999 " %llu %llu %llu %ju\n", 1000 pr.rule.label, 1001 (unsigned long long)pr.rule.evaluations, 1002 (unsigned long long)(pr.rule.packets[0] + 1003 pr.rule.packets[1]), 1004 (unsigned long long)(pr.rule.bytes[0] + 1005 pr.rule.bytes[1]), 1006 (unsigned long long)pr.rule.packets[0], 1007 (unsigned long long)pr.rule.bytes[0], 1008 (unsigned long long)pr.rule.packets[1], 1009 (unsigned long long)pr.rule.bytes[1], 1010 (uintmax_t)pr.rule.u_states_tot); 1011 } 1012 break; 1013 case PFCTL_SHOW_RULES: 1014 brace = 0; 1015 if (pr.rule.label[0] && (opts & PF_OPT_SHOWALL)) 1016 labels = 1; 1017 INDENT(depth, !(opts & PF_OPT_VERBOSE)); 1018 if (pr.anchor_call[0] && 1019 ((((p = strrchr(pr.anchor_call, '_')) != NULL) && 1020 ((void *)p == (void *)pr.anchor_call || 1021 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) { 1022 brace++; 1023 if ((p = strrchr(pr.anchor_call, '/')) != 1024 NULL) 1025 p++; 1026 else 1027 p = &pr.anchor_call[0]; 1028 } else 1029 p = &pr.anchor_call[0]; 1030 1031 print_rule(&pr.rule, p, rule_numbers, numeric); 1032 if (brace) 1033 printf(" {\n"); 1034 else 1035 printf("\n"); 1036 pfctl_print_rule_counters(&pr.rule, opts); 1037 if (brace) { 1038 pfctl_show_rules(dev, path, opts, format, 1039 p, depth + 1); 1040 INDENT(depth, !(opts & PF_OPT_VERBOSE)); 1041 printf("}\n"); 1042 } 1043 break; 1044 case PFCTL_SHOW_NOTHING: 1045 break; 1046 } 1047 pfctl_clear_pool(&pr.rule.rpool); 1048 } 1049 path[len] = '\0'; 1050 return (0); 1051 1052 error: 1053 path[len] = '\0'; 1054 return (-1); 1055 } 1056 1057 int 1058 pfctl_show_nat(int dev, int opts, char *anchorname) 1059 { 1060 struct pfioc_rule pr; 1061 u_int32_t mnr, nr; 1062 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT }; 1063 int i, dotitle = opts & PF_OPT_SHOWALL; 1064 1065 memset(&pr, 0, sizeof(pr)); 1066 memcpy(pr.anchor, anchorname, sizeof(pr.anchor)); 1067 for (i = 0; i < 3; i++) { 1068 pr.rule.action = nattype[i]; 1069 if (ioctl(dev, DIOCGETRULES, &pr)) { 1070 warn("DIOCGETRULES"); 1071 return (-1); 1072 } 1073 mnr = pr.nr; 1074 for (nr = 0; nr < mnr; ++nr) { 1075 pr.nr = nr; 1076 if (ioctl(dev, DIOCGETRULE, &pr)) { 1077 warn("DIOCGETRULE"); 1078 return (-1); 1079 } 1080 if (pfctl_get_pool(dev, &pr.rule.rpool, nr, 1081 pr.ticket, nattype[i], anchorname) != 0) 1082 return (-1); 1083 if (dotitle) { 1084 pfctl_print_title("TRANSLATION RULES:"); 1085 dotitle = 0; 1086 } 1087 print_rule(&pr.rule, pr.anchor_call, 1088 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC); 1089 printf("\n"); 1090 pfctl_print_rule_counters(&pr.rule, opts); 1091 pfctl_clear_pool(&pr.rule.rpool); 1092 } 1093 } 1094 return (0); 1095 } 1096 1097 int 1098 pfctl_show_src_nodes(int dev, int opts) 1099 { 1100 struct pfioc_src_nodes psn; 1101 struct pf_src_node *p; 1102 char *inbuf = NULL, *newinbuf = NULL; 1103 unsigned int len = 0; 1104 int i; 1105 1106 memset(&psn, 0, sizeof(psn)); 1107 for (;;) { 1108 psn.psn_len = len; 1109 if (len) { 1110 newinbuf = realloc(inbuf, len); 1111 if (newinbuf == NULL) 1112 err(1, "realloc"); 1113 psn.psn_buf = inbuf = newinbuf; 1114 } 1115 if (ioctl(dev, DIOCGETSRCNODES, &psn) < 0) { 1116 warn("DIOCGETSRCNODES"); 1117 free(inbuf); 1118 return (-1); 1119 } 1120 if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len) 1121 break; 1122 if (len == 0 && psn.psn_len == 0) 1123 goto done; 1124 if (len == 0 && psn.psn_len != 0) 1125 len = psn.psn_len; 1126 if (psn.psn_len == 0) 1127 goto done; /* no src_nodes */ 1128 len *= 2; 1129 } 1130 p = psn.psn_src_nodes; 1131 if (psn.psn_len > 0 && (opts & PF_OPT_SHOWALL)) 1132 pfctl_print_title("SOURCE TRACKING NODES:"); 1133 for (i = 0; i < psn.psn_len; i += sizeof(*p)) { 1134 print_src_node(p, opts); 1135 p++; 1136 } 1137 done: 1138 free(inbuf); 1139 return (0); 1140 } 1141 1142 int 1143 pfctl_show_states(int dev, const char *iface, int opts) 1144 { 1145 struct pfioc_states ps; 1146 struct pfsync_state *p; 1147 char *inbuf = NULL, *newinbuf = NULL; 1148 unsigned int len = 0; 1149 int i, dotitle = (opts & PF_OPT_SHOWALL); 1150 1151 memset(&ps, 0, sizeof(ps)); 1152 for (;;) { 1153 ps.ps_len = len; 1154 if (len) { 1155 newinbuf = realloc(inbuf, len); 1156 if (newinbuf == NULL) 1157 err(1, "realloc"); 1158 ps.ps_buf = inbuf = newinbuf; 1159 } 1160 if (ioctl(dev, DIOCGETSTATES, &ps) < 0) { 1161 warn("DIOCGETSTATES"); 1162 free(inbuf); 1163 return (-1); 1164 } 1165 if (ps.ps_len + sizeof(struct pfioc_states) < len) 1166 break; 1167 if (len == 0 && ps.ps_len == 0) 1168 goto done; 1169 if (len == 0 && ps.ps_len != 0) 1170 len = ps.ps_len; 1171 if (ps.ps_len == 0) 1172 goto done; /* no states */ 1173 len *= 2; 1174 } 1175 p = ps.ps_states; 1176 for (i = 0; i < ps.ps_len; i += sizeof(*p), p++) { 1177 if (iface != NULL && strcmp(p->ifname, iface)) 1178 continue; 1179 if (dotitle) { 1180 pfctl_print_title("STATES:"); 1181 dotitle = 0; 1182 } 1183 print_state(p, opts); 1184 } 1185 done: 1186 free(inbuf); 1187 return (0); 1188 } 1189 1190 int 1191 pfctl_show_status(int dev, int opts) 1192 { 1193 struct pf_status status; 1194 1195 if (ioctl(dev, DIOCGETSTATUS, &status)) { 1196 warn("DIOCGETSTATUS"); 1197 return (-1); 1198 } 1199 if (opts & PF_OPT_SHOWALL) 1200 pfctl_print_title("INFO:"); 1201 print_status(&status, opts); 1202 return (0); 1203 } 1204 1205 int 1206 pfctl_show_running(int dev) 1207 { 1208 struct pf_status status; 1209 1210 if (ioctl(dev, DIOCGETSTATUS, &status)) { 1211 warn("DIOCGETSTATUS"); 1212 return (-1); 1213 } 1214 1215 print_running(&status); 1216 return (!status.running); 1217 } 1218 1219 int 1220 pfctl_show_timeouts(int dev, int opts) 1221 { 1222 struct pfioc_tm pt; 1223 int i; 1224 1225 if (opts & PF_OPT_SHOWALL) 1226 pfctl_print_title("TIMEOUTS:"); 1227 memset(&pt, 0, sizeof(pt)); 1228 for (i = 0; pf_timeouts[i].name; i++) { 1229 pt.timeout = pf_timeouts[i].timeout; 1230 if (ioctl(dev, DIOCGETTIMEOUT, &pt)) 1231 err(1, "DIOCGETTIMEOUT"); 1232 printf("%-20s %10d", pf_timeouts[i].name, pt.seconds); 1233 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START && 1234 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END) 1235 printf(" states"); 1236 else 1237 printf("s"); 1238 printf("\n"); 1239 } 1240 return (0); 1241 1242 } 1243 1244 int 1245 pfctl_show_limits(int dev, int opts) 1246 { 1247 struct pfioc_limit pl; 1248 int i; 1249 1250 if (opts & PF_OPT_SHOWALL) 1251 pfctl_print_title("LIMITS:"); 1252 memset(&pl, 0, sizeof(pl)); 1253 for (i = 0; pf_limits[i].name; i++) { 1254 pl.index = pf_limits[i].index; 1255 if (ioctl(dev, DIOCGETLIMIT, &pl)) 1256 err(1, "DIOCGETLIMIT"); 1257 printf("%-13s ", pf_limits[i].name); 1258 if (pl.limit == UINT_MAX) 1259 printf("unlimited\n"); 1260 else 1261 printf("hard limit %8u\n", pl.limit); 1262 } 1263 return (0); 1264 } 1265 1266 /* callbacks for rule/nat/rdr/addr */ 1267 int 1268 pfctl_add_pool(struct pfctl *pf, struct pf_pool *p, sa_family_t af) 1269 { 1270 struct pf_pooladdr *pa; 1271 1272 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1273 if (ioctl(pf->dev, DIOCBEGINADDRS, &pf->paddr)) 1274 err(1, "DIOCBEGINADDRS"); 1275 } 1276 1277 pf->paddr.af = af; 1278 TAILQ_FOREACH(pa, &p->list, entries) { 1279 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr)); 1280 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1281 if (ioctl(pf->dev, DIOCADDADDR, &pf->paddr)) 1282 err(1, "DIOCADDADDR"); 1283 } 1284 } 1285 return (0); 1286 } 1287 1288 int 1289 pfctl_add_rule(struct pfctl *pf, struct pf_rule *r, const char *anchor_call) 1290 { 1291 u_int8_t rs_num; 1292 struct pf_rule *rule; 1293 struct pf_ruleset *rs; 1294 char *p; 1295 1296 rs_num = pf_get_ruleset_number(r->action); 1297 if (rs_num == PF_RULESET_MAX) 1298 errx(1, "Invalid rule type %d", r->action); 1299 1300 rs = &pf->anchor->ruleset; 1301 1302 if (anchor_call[0] && r->anchor == NULL) { 1303 /* 1304 * Don't make non-brace anchors part of the main anchor pool. 1305 */ 1306 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL) 1307 err(1, "pfctl_add_rule: calloc"); 1308 1309 pf_init_ruleset(&r->anchor->ruleset); 1310 r->anchor->ruleset.anchor = r->anchor; 1311 if (strlcpy(r->anchor->path, anchor_call, 1312 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path)) 1313 errx(1, "pfctl_add_rule: strlcpy"); 1314 if ((p = strrchr(anchor_call, '/')) != NULL) { 1315 if (!strlen(p)) 1316 err(1, "pfctl_add_rule: bad anchor name %s", 1317 anchor_call); 1318 } else 1319 p = (char *)anchor_call; 1320 if (strlcpy(r->anchor->name, p, 1321 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name)) 1322 errx(1, "pfctl_add_rule: strlcpy"); 1323 } 1324 1325 if ((rule = calloc(1, sizeof(*rule))) == NULL) 1326 err(1, "calloc"); 1327 bcopy(r, rule, sizeof(*rule)); 1328 TAILQ_INIT(&rule->rpool.list); 1329 pfctl_move_pool(&r->rpool, &rule->rpool); 1330 1331 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries); 1332 return (0); 1333 } 1334 1335 int 1336 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pf_anchor *a) 1337 { 1338 int osize = pf->trans->pfrb_size; 1339 1340 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) { 1341 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) || 1342 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) || 1343 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path)) 1344 return (1); 1345 } 1346 if (a == pf->astack[0] && ((altqsupport && 1347 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) { 1348 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path)) 1349 return (2); 1350 } 1351 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) { 1352 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) || 1353 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path)) 1354 return (3); 1355 } 1356 if (pf->loadopt & PFCTL_FLAG_TABLE) 1357 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path)) 1358 return (4); 1359 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize)) 1360 return (5); 1361 1362 return (0); 1363 } 1364 1365 int 1366 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pf_ruleset *rs, 1367 int rs_num, int depth) 1368 { 1369 struct pf_rule *r; 1370 int error, len = strlen(path); 1371 int brace = 0; 1372 1373 pf->anchor = rs->anchor; 1374 1375 if (path[0]) 1376 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name); 1377 else 1378 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name); 1379 1380 if (depth) { 1381 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) { 1382 brace++; 1383 if (pf->opts & PF_OPT_VERBOSE) 1384 printf(" {\n"); 1385 if ((pf->opts & PF_OPT_NOACTION) == 0 && 1386 (error = pfctl_ruleset_trans(pf, 1387 path, rs->anchor))) { 1388 printf("pfctl_load_rulesets: " 1389 "pfctl_ruleset_trans %d\n", error); 1390 goto error; 1391 } 1392 } else if (pf->opts & PF_OPT_VERBOSE) 1393 printf("\n"); 1394 1395 } 1396 1397 if (pf->optimize && rs_num == PF_RULESET_FILTER) 1398 pfctl_optimize_ruleset(pf, rs); 1399 1400 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) { 1401 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries); 1402 if ((error = pfctl_load_rule(pf, path, r, depth))) 1403 goto error; 1404 if (r->anchor) { 1405 if ((error = pfctl_load_ruleset(pf, path, 1406 &r->anchor->ruleset, rs_num, depth + 1))) 1407 goto error; 1408 } else if (pf->opts & PF_OPT_VERBOSE) 1409 printf("\n"); 1410 free(r); 1411 } 1412 if (brace && pf->opts & PF_OPT_VERBOSE) { 1413 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE)); 1414 printf("}\n"); 1415 } 1416 path[len] = '\0'; 1417 return (0); 1418 1419 error: 1420 path[len] = '\0'; 1421 return (error); 1422 1423 } 1424 1425 int 1426 pfctl_load_rule(struct pfctl *pf, char *path, struct pf_rule *r, int depth) 1427 { 1428 u_int8_t rs_num = pf_get_ruleset_number(r->action); 1429 char *name; 1430 struct pfioc_rule pr; 1431 int len = strlen(path); 1432 1433 bzero(&pr, sizeof(pr)); 1434 /* set up anchor before adding to path for anchor_call */ 1435 if ((pf->opts & PF_OPT_NOACTION) == 0) 1436 pr.ticket = pfctl_get_ticket(pf->trans, rs_num, path); 1437 if (strlcpy(pr.anchor, path, sizeof(pr.anchor)) >= sizeof(pr.anchor)) 1438 errx(1, "pfctl_load_rule: strlcpy"); 1439 1440 if (r->anchor) { 1441 if (r->anchor->match) { 1442 if (path[0]) 1443 snprintf(&path[len], MAXPATHLEN - len, 1444 "/%s", r->anchor->name); 1445 else 1446 snprintf(&path[len], MAXPATHLEN - len, 1447 "%s", r->anchor->name); 1448 name = r->anchor->name; 1449 } else 1450 name = r->anchor->path; 1451 } else 1452 name = ""; 1453 1454 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1455 if (pfctl_add_pool(pf, &r->rpool, r->af)) 1456 return (1); 1457 pr.pool_ticket = pf->paddr.ticket; 1458 memcpy(&pr.rule, r, sizeof(pr.rule)); 1459 if (r->anchor && strlcpy(pr.anchor_call, name, 1460 sizeof(pr.anchor_call)) >= sizeof(pr.anchor_call)) 1461 errx(1, "pfctl_load_rule: strlcpy"); 1462 if (ioctl(pf->dev, DIOCADDRULE, &pr)) 1463 err(1, "DIOCADDRULE"); 1464 } 1465 1466 if (pf->opts & PF_OPT_VERBOSE) { 1467 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2)); 1468 print_rule(r, r->anchor ? r->anchor->name : "", 1469 pf->opts & PF_OPT_VERBOSE2, 1470 pf->opts & PF_OPT_NUMERIC); 1471 } 1472 path[len] = '\0'; 1473 pfctl_clear_pool(&r->rpool); 1474 return (0); 1475 } 1476 1477 int 1478 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a) 1479 { 1480 if (altqsupport && 1481 (loadopt & PFCTL_FLAG_ALTQ) != 0) { 1482 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq)); 1483 if ((pf->opts & PF_OPT_NOACTION) == 0) { 1484 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) { 1485 if (errno == ENXIO) 1486 errx(1, "qtype not configured"); 1487 else if (errno == ENODEV) 1488 errx(1, "%s: driver does not support " 1489 "altq", a->ifname); 1490 else 1491 err(1, "DIOCADDALTQ"); 1492 } 1493 } 1494 pfaltq_store(&pf->paltq->altq); 1495 } 1496 return (0); 1497 } 1498 1499 int 1500 pfctl_rules(int dev, char *filename, int opts, int optimize, 1501 char *anchorname, struct pfr_buffer *trans) 1502 { 1503 #define ERR(x) do { warn(x); goto _error; } while(0) 1504 #define ERRX(x) do { warnx(x); goto _error; } while(0) 1505 1506 struct pfr_buffer *t, buf; 1507 struct pfioc_altq pa; 1508 struct pfctl pf; 1509 struct pf_ruleset *rs; 1510 struct pfr_table trs; 1511 char *path; 1512 int osize; 1513 1514 RB_INIT(&pf_anchors); 1515 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor)); 1516 pf_init_ruleset(&pf_main_anchor.ruleset); 1517 pf_main_anchor.ruleset.anchor = &pf_main_anchor; 1518 if (trans == NULL) { 1519 bzero(&buf, sizeof(buf)); 1520 buf.pfrb_type = PFRB_TRANS; 1521 t = &buf; 1522 osize = 0; 1523 } else { 1524 t = trans; 1525 osize = t->pfrb_size; 1526 } 1527 1528 memset(&pa, 0, sizeof(pa)); 1529 pa.version = PFIOC_ALTQ_VERSION; 1530 memset(&pf, 0, sizeof(pf)); 1531 memset(&trs, 0, sizeof(trs)); 1532 if ((path = calloc(1, MAXPATHLEN)) == NULL) 1533 ERRX("pfctl_rules: calloc"); 1534 if (strlcpy(trs.pfrt_anchor, anchorname, 1535 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor)) 1536 ERRX("pfctl_rules: strlcpy"); 1537 pf.dev = dev; 1538 pf.opts = opts; 1539 pf.optimize = optimize; 1540 pf.loadopt = loadopt; 1541 1542 /* non-brace anchor, create without resolving the path */ 1543 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL) 1544 ERRX("pfctl_rules: calloc"); 1545 rs = &pf.anchor->ruleset; 1546 pf_init_ruleset(rs); 1547 rs->anchor = pf.anchor; 1548 if (strlcpy(pf.anchor->path, anchorname, 1549 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path)) 1550 errx(1, "pfctl_add_rule: strlcpy"); 1551 if (strlcpy(pf.anchor->name, anchorname, 1552 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name)) 1553 errx(1, "pfctl_add_rule: strlcpy"); 1554 1555 1556 pf.astack[0] = pf.anchor; 1557 pf.asd = 0; 1558 if (anchorname[0]) 1559 pf.loadopt &= ~PFCTL_FLAG_ALTQ; 1560 pf.paltq = &pa; 1561 pf.trans = t; 1562 pfctl_init_options(&pf); 1563 1564 if ((opts & PF_OPT_NOACTION) == 0) { 1565 /* 1566 * XXX For the time being we need to open transactions for 1567 * the main ruleset before parsing, because tables are still 1568 * loaded at parse time. 1569 */ 1570 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor)) 1571 ERRX("pfctl_rules"); 1572 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ)) 1573 pa.ticket = 1574 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname); 1575 if (pf.loadopt & PFCTL_FLAG_TABLE) 1576 pf.astack[0]->ruleset.tticket = 1577 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname); 1578 } 1579 1580 if (parse_config(filename, &pf) < 0) { 1581 if ((opts & PF_OPT_NOACTION) == 0) 1582 ERRX("Syntax error in config file: " 1583 "pf rules not loaded"); 1584 else 1585 goto _error; 1586 } 1587 if (loadopt & PFCTL_FLAG_OPTION) 1588 pfctl_adjust_skip_ifaces(&pf); 1589 1590 if ((pf.loadopt & PFCTL_FLAG_FILTER && 1591 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) || 1592 (pf.loadopt & PFCTL_FLAG_NAT && 1593 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) || 1594 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) || 1595 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) || 1596 (pf.loadopt & PFCTL_FLAG_FILTER && 1597 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) { 1598 if ((opts & PF_OPT_NOACTION) == 0) 1599 ERRX("Unable to load rules into kernel"); 1600 else 1601 goto _error; 1602 } 1603 1604 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0)) 1605 if (check_commit_altq(dev, opts) != 0) 1606 ERRX("errors in altq config"); 1607 1608 /* process "load anchor" directives */ 1609 if (!anchorname[0]) 1610 if (pfctl_load_anchors(dev, &pf, t) == -1) 1611 ERRX("load anchors"); 1612 1613 if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) { 1614 if (!anchorname[0]) 1615 if (pfctl_load_options(&pf)) 1616 goto _error; 1617 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize)) 1618 ERR("DIOCXCOMMIT"); 1619 } 1620 free(path); 1621 return (0); 1622 1623 _error: 1624 if (trans == NULL) { /* main ruleset */ 1625 if ((opts & PF_OPT_NOACTION) == 0) 1626 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize)) 1627 err(1, "DIOCXROLLBACK"); 1628 exit(1); 1629 } else { /* sub ruleset */ 1630 free(path); 1631 return (-1); 1632 } 1633 1634 #undef ERR 1635 #undef ERRX 1636 } 1637 1638 FILE * 1639 pfctl_fopen(const char *name, const char *mode) 1640 { 1641 struct stat st; 1642 FILE *fp; 1643 1644 fp = fopen(name, mode); 1645 if (fp == NULL) 1646 return (NULL); 1647 if (fstat(fileno(fp), &st)) { 1648 fclose(fp); 1649 return (NULL); 1650 } 1651 if (S_ISDIR(st.st_mode)) { 1652 fclose(fp); 1653 errno = EISDIR; 1654 return (NULL); 1655 } 1656 return (fp); 1657 } 1658 1659 void 1660 pfctl_init_options(struct pfctl *pf) 1661 { 1662 1663 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL; 1664 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL; 1665 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL; 1666 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL; 1667 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL; 1668 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL; 1669 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL; 1670 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL; 1671 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL; 1672 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL; 1673 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL; 1674 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL; 1675 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL; 1676 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL; 1677 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL; 1678 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL; 1679 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL; 1680 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL; 1681 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START; 1682 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END; 1683 1684 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT; 1685 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT; 1686 pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT; 1687 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT; 1688 1689 pf->debug = PF_DEBUG_URGENT; 1690 } 1691 1692 int 1693 pfctl_load_options(struct pfctl *pf) 1694 { 1695 int i, error = 0; 1696 1697 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1698 return (0); 1699 1700 /* load limits */ 1701 for (i = 0; i < PF_LIMIT_MAX; i++) { 1702 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i]) 1703 continue; 1704 if (pfctl_load_limit(pf, i, pf->limit[i])) 1705 error = 1; 1706 } 1707 1708 /* 1709 * If we've set the limit, but haven't explicitly set adaptive 1710 * timeouts, do it now with a start of 60% and end of 120%. 1711 */ 1712 if (pf->limit_set[PF_LIMIT_STATES] && 1713 !pf->timeout_set[PFTM_ADAPTIVE_START] && 1714 !pf->timeout_set[PFTM_ADAPTIVE_END]) { 1715 pf->timeout[PFTM_ADAPTIVE_START] = 1716 (pf->limit[PF_LIMIT_STATES] / 10) * 6; 1717 pf->timeout_set[PFTM_ADAPTIVE_START] = 1; 1718 pf->timeout[PFTM_ADAPTIVE_END] = 1719 (pf->limit[PF_LIMIT_STATES] / 10) * 12; 1720 pf->timeout_set[PFTM_ADAPTIVE_END] = 1; 1721 } 1722 1723 /* load timeouts */ 1724 for (i = 0; i < PFTM_MAX; i++) { 1725 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i]) 1726 continue; 1727 if (pfctl_load_timeout(pf, i, pf->timeout[i])) 1728 error = 1; 1729 } 1730 1731 /* load debug */ 1732 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set) 1733 if (pfctl_load_debug(pf, pf->debug)) 1734 error = 1; 1735 1736 /* load logif */ 1737 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set) 1738 if (pfctl_load_logif(pf, pf->ifname)) 1739 error = 1; 1740 1741 /* load hostid */ 1742 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set) 1743 if (pfctl_load_hostid(pf, pf->hostid)) 1744 error = 1; 1745 1746 return (error); 1747 } 1748 1749 int 1750 pfctl_set_limit(struct pfctl *pf, const char *opt, unsigned int limit) 1751 { 1752 int i; 1753 1754 1755 for (i = 0; pf_limits[i].name; i++) { 1756 if (strcasecmp(opt, pf_limits[i].name) == 0) { 1757 pf->limit[pf_limits[i].index] = limit; 1758 pf->limit_set[pf_limits[i].index] = 1; 1759 break; 1760 } 1761 } 1762 if (pf_limits[i].name == NULL) { 1763 warnx("Bad pool name."); 1764 return (1); 1765 } 1766 1767 if (pf->opts & PF_OPT_VERBOSE) 1768 printf("set limit %s %d\n", opt, limit); 1769 1770 return (0); 1771 } 1772 1773 int 1774 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit) 1775 { 1776 struct pfioc_limit pl; 1777 1778 memset(&pl, 0, sizeof(pl)); 1779 pl.index = index; 1780 pl.limit = limit; 1781 if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) { 1782 if (errno == EBUSY) 1783 warnx("Current pool size exceeds requested hard limit"); 1784 else 1785 warnx("DIOCSETLIMIT"); 1786 return (1); 1787 } 1788 return (0); 1789 } 1790 1791 int 1792 pfctl_set_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet) 1793 { 1794 int i; 1795 1796 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1797 return (0); 1798 1799 for (i = 0; pf_timeouts[i].name; i++) { 1800 if (strcasecmp(opt, pf_timeouts[i].name) == 0) { 1801 pf->timeout[pf_timeouts[i].timeout] = seconds; 1802 pf->timeout_set[pf_timeouts[i].timeout] = 1; 1803 break; 1804 } 1805 } 1806 1807 if (pf_timeouts[i].name == NULL) { 1808 warnx("Bad timeout name."); 1809 return (1); 1810 } 1811 1812 1813 if (pf->opts & PF_OPT_VERBOSE && ! quiet) 1814 printf("set timeout %s %d\n", opt, seconds); 1815 1816 return (0); 1817 } 1818 1819 int 1820 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds) 1821 { 1822 struct pfioc_tm pt; 1823 1824 memset(&pt, 0, sizeof(pt)); 1825 pt.timeout = timeout; 1826 pt.seconds = seconds; 1827 if (ioctl(pf->dev, DIOCSETTIMEOUT, &pt)) { 1828 warnx("DIOCSETTIMEOUT"); 1829 return (1); 1830 } 1831 return (0); 1832 } 1833 1834 int 1835 pfctl_set_optimization(struct pfctl *pf, const char *opt) 1836 { 1837 const struct pf_hint *hint; 1838 int i, r; 1839 1840 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1841 return (0); 1842 1843 for (i = 0; pf_hints[i].name; i++) 1844 if (strcasecmp(opt, pf_hints[i].name) == 0) 1845 break; 1846 1847 hint = pf_hints[i].hint; 1848 if (hint == NULL) { 1849 warnx("invalid state timeouts optimization"); 1850 return (1); 1851 } 1852 1853 for (i = 0; hint[i].name; i++) 1854 if ((r = pfctl_set_timeout(pf, hint[i].name, 1855 hint[i].timeout, 1))) 1856 return (r); 1857 1858 if (pf->opts & PF_OPT_VERBOSE) 1859 printf("set optimization %s\n", opt); 1860 1861 return (0); 1862 } 1863 1864 int 1865 pfctl_set_logif(struct pfctl *pf, char *ifname) 1866 { 1867 1868 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1869 return (0); 1870 1871 if (!strcmp(ifname, "none")) { 1872 free(pf->ifname); 1873 pf->ifname = NULL; 1874 } else { 1875 pf->ifname = strdup(ifname); 1876 if (!pf->ifname) 1877 errx(1, "pfctl_set_logif: strdup"); 1878 } 1879 pf->ifname_set = 1; 1880 1881 if (pf->opts & PF_OPT_VERBOSE) 1882 printf("set loginterface %s\n", ifname); 1883 1884 return (0); 1885 } 1886 1887 int 1888 pfctl_load_logif(struct pfctl *pf, char *ifname) 1889 { 1890 struct pfioc_if pi; 1891 1892 memset(&pi, 0, sizeof(pi)); 1893 if (ifname && strlcpy(pi.ifname, ifname, 1894 sizeof(pi.ifname)) >= sizeof(pi.ifname)) { 1895 warnx("pfctl_load_logif: strlcpy"); 1896 return (1); 1897 } 1898 if (ioctl(pf->dev, DIOCSETSTATUSIF, &pi)) { 1899 warnx("DIOCSETSTATUSIF"); 1900 return (1); 1901 } 1902 return (0); 1903 } 1904 1905 int 1906 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid) 1907 { 1908 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1909 return (0); 1910 1911 HTONL(hostid); 1912 1913 pf->hostid = hostid; 1914 pf->hostid_set = 1; 1915 1916 if (pf->opts & PF_OPT_VERBOSE) 1917 printf("set hostid 0x%08x\n", ntohl(hostid)); 1918 1919 return (0); 1920 } 1921 1922 int 1923 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid) 1924 { 1925 if (ioctl(dev, DIOCSETHOSTID, &hostid)) { 1926 warnx("DIOCSETHOSTID"); 1927 return (1); 1928 } 1929 return (0); 1930 } 1931 1932 int 1933 pfctl_set_debug(struct pfctl *pf, char *d) 1934 { 1935 u_int32_t level; 1936 1937 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1938 return (0); 1939 1940 if (!strcmp(d, "none")) 1941 pf->debug = PF_DEBUG_NONE; 1942 else if (!strcmp(d, "urgent")) 1943 pf->debug = PF_DEBUG_URGENT; 1944 else if (!strcmp(d, "misc")) 1945 pf->debug = PF_DEBUG_MISC; 1946 else if (!strcmp(d, "loud")) 1947 pf->debug = PF_DEBUG_NOISY; 1948 else { 1949 warnx("unknown debug level \"%s\"", d); 1950 return (-1); 1951 } 1952 1953 pf->debug_set = 1; 1954 level = pf->debug; 1955 1956 if ((pf->opts & PF_OPT_NOACTION) == 0) 1957 if (ioctl(dev, DIOCSETDEBUG, &level)) 1958 err(1, "DIOCSETDEBUG"); 1959 1960 if (pf->opts & PF_OPT_VERBOSE) 1961 printf("set debug %s\n", d); 1962 1963 return (0); 1964 } 1965 1966 int 1967 pfctl_load_debug(struct pfctl *pf, unsigned int level) 1968 { 1969 if (ioctl(pf->dev, DIOCSETDEBUG, &level)) { 1970 warnx("DIOCSETDEBUG"); 1971 return (1); 1972 } 1973 return (0); 1974 } 1975 1976 int 1977 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how) 1978 { 1979 struct pfioc_iface pi; 1980 struct node_host *h = NULL, *n = NULL; 1981 1982 if ((loadopt & PFCTL_FLAG_OPTION) == 0) 1983 return (0); 1984 1985 bzero(&pi, sizeof(pi)); 1986 1987 pi.pfiio_flags = flags; 1988 1989 /* Make sure our cache matches the kernel. If we set or clear the flag 1990 * for a group this applies to all members. */ 1991 h = ifa_grouplookup(ifname, 0); 1992 for (n = h; n != NULL; n = n->next) 1993 pfctl_set_interface_flags(pf, n->ifname, flags, how); 1994 1995 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >= 1996 sizeof(pi.pfiio_name)) 1997 errx(1, "pfctl_set_interface_flags: strlcpy"); 1998 1999 if ((pf->opts & PF_OPT_NOACTION) == 0) { 2000 if (how == 0) { 2001 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi)) 2002 err(1, "DIOCCLRIFFLAG"); 2003 } else { 2004 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi)) 2005 err(1, "DIOCSETIFFLAG"); 2006 pfctl_check_skip_ifaces(ifname); 2007 } 2008 } 2009 return (0); 2010 } 2011 2012 void 2013 pfctl_debug(int dev, u_int32_t level, int opts) 2014 { 2015 if (ioctl(dev, DIOCSETDEBUG, &level)) 2016 err(1, "DIOCSETDEBUG"); 2017 if ((opts & PF_OPT_QUIET) == 0) { 2018 fprintf(stderr, "debug level set to '"); 2019 switch (level) { 2020 case PF_DEBUG_NONE: 2021 fprintf(stderr, "none"); 2022 break; 2023 case PF_DEBUG_URGENT: 2024 fprintf(stderr, "urgent"); 2025 break; 2026 case PF_DEBUG_MISC: 2027 fprintf(stderr, "misc"); 2028 break; 2029 case PF_DEBUG_NOISY: 2030 fprintf(stderr, "loud"); 2031 break; 2032 default: 2033 fprintf(stderr, "<invalid>"); 2034 break; 2035 } 2036 fprintf(stderr, "'\n"); 2037 } 2038 } 2039 2040 int 2041 pfctl_test_altqsupport(int dev, int opts) 2042 { 2043 struct pfioc_altq pa; 2044 2045 pa.version = PFIOC_ALTQ_VERSION; 2046 if (ioctl(dev, DIOCGETALTQS, &pa)) { 2047 if (errno == ENODEV) { 2048 if (opts & PF_OPT_VERBOSE) 2049 fprintf(stderr, "No ALTQ support in kernel\n" 2050 "ALTQ related functions disabled\n"); 2051 return (0); 2052 } else 2053 err(1, "DIOCGETALTQS"); 2054 } 2055 return (1); 2056 } 2057 2058 int 2059 pfctl_show_anchors(int dev, int opts, char *anchorname) 2060 { 2061 struct pfioc_ruleset pr; 2062 u_int32_t mnr, nr; 2063 2064 memset(&pr, 0, sizeof(pr)); 2065 memcpy(pr.path, anchorname, sizeof(pr.path)); 2066 if (ioctl(dev, DIOCGETRULESETS, &pr)) { 2067 if (errno == EINVAL) 2068 fprintf(stderr, "Anchor '%s' not found.\n", 2069 anchorname); 2070 else 2071 err(1, "DIOCGETRULESETS"); 2072 return (-1); 2073 } 2074 mnr = pr.nr; 2075 for (nr = 0; nr < mnr; ++nr) { 2076 char sub[MAXPATHLEN]; 2077 2078 pr.nr = nr; 2079 if (ioctl(dev, DIOCGETRULESET, &pr)) 2080 err(1, "DIOCGETRULESET"); 2081 if (!strcmp(pr.name, PF_RESERVED_ANCHOR)) 2082 continue; 2083 sub[0] = 0; 2084 if (pr.path[0]) { 2085 strlcat(sub, pr.path, sizeof(sub)); 2086 strlcat(sub, "/", sizeof(sub)); 2087 } 2088 strlcat(sub, pr.name, sizeof(sub)); 2089 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE)) 2090 printf(" %s\n", sub); 2091 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub)) 2092 return (-1); 2093 } 2094 return (0); 2095 } 2096 2097 const char * 2098 pfctl_lookup_option(char *cmd, const char * const *list) 2099 { 2100 if (cmd != NULL && *cmd) 2101 for (; *list; list++) 2102 if (!strncmp(cmd, *list, strlen(cmd))) 2103 return (*list); 2104 return (NULL); 2105 } 2106 2107 int 2108 main(int argc, char *argv[]) 2109 { 2110 int error = 0; 2111 int ch; 2112 int mode = O_RDONLY; 2113 int opts = 0; 2114 int optimize = PF_OPTIMIZE_BASIC; 2115 char anchorname[MAXPATHLEN]; 2116 char *path; 2117 2118 if (argc < 2) 2119 usage(); 2120 2121 while ((ch = getopt(argc, argv, 2122 "a:AdD:eqf:F:ghi:k:K:mnNOo:Pp:rRs:t:T:vx:z")) != -1) { 2123 switch (ch) { 2124 case 'a': 2125 anchoropt = optarg; 2126 break; 2127 case 'd': 2128 opts |= PF_OPT_DISABLE; 2129 mode = O_RDWR; 2130 break; 2131 case 'D': 2132 if (pfctl_cmdline_symset(optarg) < 0) 2133 warnx("could not parse macro definition %s", 2134 optarg); 2135 break; 2136 case 'e': 2137 opts |= PF_OPT_ENABLE; 2138 mode = O_RDWR; 2139 break; 2140 case 'q': 2141 opts |= PF_OPT_QUIET; 2142 break; 2143 case 'F': 2144 clearopt = pfctl_lookup_option(optarg, clearopt_list); 2145 if (clearopt == NULL) { 2146 warnx("Unknown flush modifier '%s'", optarg); 2147 usage(); 2148 } 2149 mode = O_RDWR; 2150 break; 2151 case 'i': 2152 ifaceopt = optarg; 2153 break; 2154 case 'k': 2155 if (state_killers >= 2) { 2156 warnx("can only specify -k twice"); 2157 usage(); 2158 /* NOTREACHED */ 2159 } 2160 state_kill[state_killers++] = optarg; 2161 mode = O_RDWR; 2162 break; 2163 case 'K': 2164 if (src_node_killers >= 2) { 2165 warnx("can only specify -K twice"); 2166 usage(); 2167 /* NOTREACHED */ 2168 } 2169 src_node_kill[src_node_killers++] = optarg; 2170 mode = O_RDWR; 2171 break; 2172 case 'm': 2173 opts |= PF_OPT_MERGE; 2174 break; 2175 case 'n': 2176 opts |= PF_OPT_NOACTION; 2177 break; 2178 case 'N': 2179 loadopt |= PFCTL_FLAG_NAT; 2180 break; 2181 case 'r': 2182 opts |= PF_OPT_USEDNS; 2183 break; 2184 case 'f': 2185 rulesopt = optarg; 2186 mode = O_RDWR; 2187 break; 2188 case 'g': 2189 opts |= PF_OPT_DEBUG; 2190 break; 2191 case 'A': 2192 loadopt |= PFCTL_FLAG_ALTQ; 2193 break; 2194 case 'R': 2195 loadopt |= PFCTL_FLAG_FILTER; 2196 break; 2197 case 'o': 2198 optiopt = pfctl_lookup_option(optarg, optiopt_list); 2199 if (optiopt == NULL) { 2200 warnx("Unknown optimization '%s'", optarg); 2201 usage(); 2202 } 2203 opts |= PF_OPT_OPTIMIZE; 2204 break; 2205 case 'O': 2206 loadopt |= PFCTL_FLAG_OPTION; 2207 break; 2208 case 'p': 2209 pf_device = optarg; 2210 break; 2211 case 'P': 2212 opts |= PF_OPT_NUMERIC; 2213 break; 2214 case 's': 2215 showopt = pfctl_lookup_option(optarg, showopt_list); 2216 if (showopt == NULL) { 2217 warnx("Unknown show modifier '%s'", optarg); 2218 usage(); 2219 } 2220 break; 2221 case 't': 2222 tableopt = optarg; 2223 break; 2224 case 'T': 2225 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list); 2226 if (tblcmdopt == NULL) { 2227 warnx("Unknown table command '%s'", optarg); 2228 usage(); 2229 } 2230 break; 2231 case 'v': 2232 if (opts & PF_OPT_VERBOSE) 2233 opts |= PF_OPT_VERBOSE2; 2234 opts |= PF_OPT_VERBOSE; 2235 break; 2236 case 'x': 2237 debugopt = pfctl_lookup_option(optarg, debugopt_list); 2238 if (debugopt == NULL) { 2239 warnx("Unknown debug level '%s'", optarg); 2240 usage(); 2241 } 2242 mode = O_RDWR; 2243 break; 2244 case 'z': 2245 opts |= PF_OPT_CLRRULECTRS; 2246 mode = O_RDWR; 2247 break; 2248 case 'h': 2249 /* FALLTHROUGH */ 2250 default: 2251 usage(); 2252 /* NOTREACHED */ 2253 } 2254 } 2255 2256 if (tblcmdopt != NULL) { 2257 argc -= optind; 2258 argv += optind; 2259 ch = *tblcmdopt; 2260 if (ch == 'l') { 2261 loadopt |= PFCTL_FLAG_TABLE; 2262 tblcmdopt = NULL; 2263 } else 2264 mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY; 2265 } else if (argc != optind) { 2266 warnx("unknown command line argument: %s ...", argv[optind]); 2267 usage(); 2268 /* NOTREACHED */ 2269 } 2270 if (loadopt == 0) 2271 loadopt = ~0; 2272 2273 if ((path = calloc(1, MAXPATHLEN)) == NULL) 2274 errx(1, "pfctl: calloc"); 2275 memset(anchorname, 0, sizeof(anchorname)); 2276 if (anchoropt != NULL) { 2277 int len = strlen(anchoropt); 2278 2279 if (anchoropt[len - 1] == '*') { 2280 if (len >= 2 && anchoropt[len - 2] == '/') 2281 anchoropt[len - 2] = '\0'; 2282 else 2283 anchoropt[len - 1] = '\0'; 2284 opts |= PF_OPT_RECURSE; 2285 } 2286 if (strlcpy(anchorname, anchoropt, 2287 sizeof(anchorname)) >= sizeof(anchorname)) 2288 errx(1, "anchor name '%s' too long", 2289 anchoropt); 2290 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE; 2291 } 2292 2293 if ((opts & PF_OPT_NOACTION) == 0) { 2294 dev = open(pf_device, mode); 2295 if (dev == -1) 2296 err(1, "%s", pf_device); 2297 altqsupport = pfctl_test_altqsupport(dev, opts); 2298 } else { 2299 dev = open(pf_device, O_RDONLY); 2300 if (dev >= 0) 2301 opts |= PF_OPT_DUMMYACTION; 2302 /* turn off options */ 2303 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE); 2304 clearopt = showopt = debugopt = NULL; 2305 #if !defined(ENABLE_ALTQ) 2306 altqsupport = 0; 2307 #else 2308 altqsupport = 1; 2309 #endif 2310 } 2311 2312 if (opts & PF_OPT_DISABLE) 2313 if (pfctl_disable(dev, opts)) 2314 error = 1; 2315 2316 if (showopt != NULL) { 2317 switch (*showopt) { 2318 case 'A': 2319 pfctl_show_anchors(dev, opts, anchorname); 2320 break; 2321 case 'r': 2322 pfctl_load_fingerprints(dev, opts); 2323 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES, 2324 anchorname, 0); 2325 break; 2326 case 'l': 2327 pfctl_load_fingerprints(dev, opts); 2328 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS, 2329 anchorname, 0); 2330 break; 2331 case 'n': 2332 pfctl_load_fingerprints(dev, opts); 2333 pfctl_show_nat(dev, opts, anchorname); 2334 break; 2335 case 'q': 2336 pfctl_show_altq(dev, ifaceopt, opts, 2337 opts & PF_OPT_VERBOSE2); 2338 break; 2339 case 's': 2340 pfctl_show_states(dev, ifaceopt, opts); 2341 break; 2342 case 'S': 2343 pfctl_show_src_nodes(dev, opts); 2344 break; 2345 case 'i': 2346 pfctl_show_status(dev, opts); 2347 break; 2348 case 'R': 2349 error = pfctl_show_running(dev); 2350 break; 2351 case 't': 2352 pfctl_show_timeouts(dev, opts); 2353 break; 2354 case 'm': 2355 pfctl_show_limits(dev, opts); 2356 break; 2357 case 'a': 2358 opts |= PF_OPT_SHOWALL; 2359 pfctl_load_fingerprints(dev, opts); 2360 2361 pfctl_show_nat(dev, opts, anchorname); 2362 pfctl_show_rules(dev, path, opts, 0, anchorname, 0); 2363 pfctl_show_altq(dev, ifaceopt, opts, 0); 2364 pfctl_show_states(dev, ifaceopt, opts); 2365 pfctl_show_src_nodes(dev, opts); 2366 pfctl_show_status(dev, opts); 2367 pfctl_show_rules(dev, path, opts, 1, anchorname, 0); 2368 pfctl_show_timeouts(dev, opts); 2369 pfctl_show_limits(dev, opts); 2370 pfctl_show_tables(anchorname, opts); 2371 pfctl_show_fingerprints(opts); 2372 break; 2373 case 'T': 2374 pfctl_show_tables(anchorname, opts); 2375 break; 2376 case 'o': 2377 pfctl_load_fingerprints(dev, opts); 2378 pfctl_show_fingerprints(opts); 2379 break; 2380 case 'I': 2381 pfctl_show_ifaces(ifaceopt, opts); 2382 break; 2383 } 2384 } 2385 2386 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL) 2387 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING, 2388 anchorname, 0); 2389 2390 if (clearopt != NULL) { 2391 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL) 2392 errx(1, "anchor names beginning with '_' cannot " 2393 "be modified from the command line"); 2394 2395 switch (*clearopt) { 2396 case 'r': 2397 pfctl_clear_rules(dev, opts, anchorname); 2398 break; 2399 case 'n': 2400 pfctl_clear_nat(dev, opts, anchorname); 2401 break; 2402 case 'q': 2403 pfctl_clear_altq(dev, opts); 2404 break; 2405 case 's': 2406 pfctl_clear_states(dev, ifaceopt, opts); 2407 break; 2408 case 'S': 2409 pfctl_clear_src_nodes(dev, opts); 2410 break; 2411 case 'i': 2412 pfctl_clear_stats(dev, opts); 2413 break; 2414 case 'a': 2415 pfctl_clear_rules(dev, opts, anchorname); 2416 pfctl_clear_nat(dev, opts, anchorname); 2417 pfctl_clear_tables(anchorname, opts); 2418 if (!*anchorname) { 2419 pfctl_clear_altq(dev, opts); 2420 pfctl_clear_states(dev, ifaceopt, opts); 2421 pfctl_clear_src_nodes(dev, opts); 2422 pfctl_clear_stats(dev, opts); 2423 pfctl_clear_fingerprints(dev, opts); 2424 pfctl_clear_interface_flags(dev, opts); 2425 } 2426 break; 2427 case 'o': 2428 pfctl_clear_fingerprints(dev, opts); 2429 break; 2430 case 'T': 2431 pfctl_clear_tables(anchorname, opts); 2432 break; 2433 } 2434 } 2435 if (state_killers) { 2436 if (!strcmp(state_kill[0], "label")) 2437 pfctl_label_kill_states(dev, ifaceopt, opts); 2438 else if (!strcmp(state_kill[0], "id")) 2439 pfctl_id_kill_states(dev, ifaceopt, opts); 2440 else 2441 pfctl_net_kill_states(dev, ifaceopt, opts); 2442 } 2443 2444 if (src_node_killers) 2445 pfctl_kill_src_nodes(dev, ifaceopt, opts); 2446 2447 if (tblcmdopt != NULL) { 2448 error = pfctl_command_tables(argc, argv, tableopt, 2449 tblcmdopt, rulesopt, anchorname, opts); 2450 rulesopt = NULL; 2451 } 2452 if (optiopt != NULL) { 2453 switch (*optiopt) { 2454 case 'n': 2455 optimize = 0; 2456 break; 2457 case 'b': 2458 optimize |= PF_OPTIMIZE_BASIC; 2459 break; 2460 case 'o': 2461 case 'p': 2462 optimize |= PF_OPTIMIZE_PROFILE; 2463 break; 2464 } 2465 } 2466 2467 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) && 2468 !anchorname[0] && !(opts & PF_OPT_NOACTION)) 2469 if (pfctl_get_skip_ifaces()) 2470 error = 1; 2471 2472 if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) && 2473 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION)) 2474 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE)) 2475 error = 1; 2476 2477 if (rulesopt != NULL) { 2478 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL) 2479 errx(1, "anchor names beginning with '_' cannot " 2480 "be modified from the command line"); 2481 if (pfctl_rules(dev, rulesopt, opts, optimize, 2482 anchorname, NULL)) 2483 error = 1; 2484 else if (!(opts & PF_OPT_NOACTION) && 2485 (loadopt & PFCTL_FLAG_TABLE)) 2486 warn_namespace_collision(NULL); 2487 } 2488 2489 if (opts & PF_OPT_ENABLE) 2490 if (pfctl_enable(dev, opts)) 2491 error = 1; 2492 2493 if (debugopt != NULL) { 2494 switch (*debugopt) { 2495 case 'n': 2496 pfctl_debug(dev, PF_DEBUG_NONE, opts); 2497 break; 2498 case 'u': 2499 pfctl_debug(dev, PF_DEBUG_URGENT, opts); 2500 break; 2501 case 'm': 2502 pfctl_debug(dev, PF_DEBUG_MISC, opts); 2503 break; 2504 case 'l': 2505 pfctl_debug(dev, PF_DEBUG_NOISY, opts); 2506 break; 2507 } 2508 } 2509 2510 exit(error); 2511 } 2512