sbin/pfctl/pfctl.c

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