contrib/pf/pfctl/pfctl.c

   1 /*      $OpenBSD: pfctl.c,v 1.262 2007/03/01 17:20:53 deraadt Exp $ */
   2
   3 /*
   4  * Copyright (c) 2001 Daniel Hartmeier
   5  * Copyright (c) 2002,2003 Henning Brauer
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  *    - Redistributions of source code must retain the above copyright
  13  *      notice, this list of conditions and the following disclaimer.
  14  *    - Redistributions in binary form must reproduce the above
  15  *      copyright notice, this list of conditions and the following
  16  *      disclaimer in the documentation and/or other materials provided
  17  *      with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  22  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  23  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  25  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  26  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  27  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  29  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  */
  33
  34 #include <sys/cdefs.h>
  35 __FBSDID("$FreeBSD$");
  36
  37 #include <sys/types.h>
  38 #include <sys/ioctl.h>
  39 #include <sys/socket.h>
  40 #include <sys/stat.h>
  41
  42 #include <net/if.h>
  43 #include <netinet/in.h>
  44 #include <net/pfvar.h>
  45 #include <arpa/inet.h>
  46 #include <altq/altq.h>
  47 #include <sys/sysctl.h>
  48
  49 #include <err.h>
  50 #include <errno.h>
  51 #include <fcntl.h>
  52 #include <limits.h>
  53 #include <netdb.h>
  54 #include <stdio.h>
  55 #include <stdlib.h>
  56 #include <string.h>
  57 #include <unistd.h>
  58
  59 #include "pfctl_parser.h"
  60 #include "pfctl.h"
  61
  62 #ifdef __FreeBSD__
  63 #define HTONL(x)        (x) = htonl((__uint32_t)(x))
  64 #endif
  65
  66 void     usage(void);
  67 int      pfctl_enable(int, int);
  68 int      pfctl_disable(int, int);
  69 int      pfctl_clear_stats(int, int);
  70 int      pfctl_clear_interface_flags(int, int);
  71 int      pfctl_clear_rules(int, int, char *);
  72 int      pfctl_clear_nat(int, int, char *);
  73 int      pfctl_clear_altq(int, int);
  74 int      pfctl_clear_src_nodes(int, int);
  75 int      pfctl_clear_states(int, const char *, int);
  76 void     pfctl_addrprefix(char *, struct pf_addr *);
  77 int      pfctl_kill_src_nodes(int, const char *, int);
  78 int      pfctl_kill_states(int, const char *, int);
  79 void     pfctl_init_options(struct pfctl *);
  80 int      pfctl_load_options(struct pfctl *);
  81 int      pfctl_load_limit(struct pfctl *, unsigned int, unsigned int);
  82 int      pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int);
  83 int      pfctl_load_debug(struct pfctl *, unsigned int);
  84 int      pfctl_load_logif(struct pfctl *, char *);
  85 int      pfctl_load_hostid(struct pfctl *, unsigned int);
  86 int      pfctl_get_pool(int, struct pf_pool *, u_int32_t, u_int32_t, int,
  87             char *);
  88 void     pfctl_print_rule_counters(struct pf_rule *, int);
  89 int      pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int);
  90 int      pfctl_show_nat(int, int, char *);
  91 int      pfctl_show_src_nodes(int, int);
  92 int      pfctl_show_states(int, const char *, int);
  93 int      pfctl_show_status(int, int);
  94 int      pfctl_show_timeouts(int, int);
  95 int      pfctl_show_limits(int, int);
  96 void     pfctl_debug(int, u_int32_t, int);
  97 int      pfctl_test_altqsupport(int, int);
  98 int      pfctl_show_anchors(int, int, char *);
  99 int      pfctl_ruleset_trans(struct pfctl *, char *, struct pf_anchor *);
 100 int      pfctl_load_ruleset(struct pfctl *, char *,
 101                 struct pf_ruleset *, int, int);
 102 int      pfctl_load_rule(struct pfctl *, char *, struct pf_rule *, int);
 103 const char      *pfctl_lookup_option(char *, const char **);
 104
 105 struct pf_anchor_global  pf_anchors;
 106 struct pf_anchor         pf_main_anchor;
 107
 108 const char      *clearopt;
 109 char            *rulesopt;
 110 const char      *showopt;
 111 const char      *debugopt;
 112 char            *anchoropt;
 113 const char      *optiopt = NULL;
 114 char            *pf_device = "/dev/pf";
 115 char            *ifaceopt;
 116 char            *tableopt;
 117 const char      *tblcmdopt;
 118 int              src_node_killers;
 119 char            *src_node_kill[2];
 120 int              state_killers;
 121 char            *state_kill[2];
 122 int              loadopt;
 123 int              altqsupport;
 124
 125 int              dev = -1;
 126 int              first_title = 1;
 127 int              labels = 0;
 128
 129 const char      *infile;
 130
 131 #define INDENT(d, o)    do {                                            \
 132                                 if (o) {                                \
 133                                         int i;                          \
 134                                         for (i=0; i < d; i++)           \
 135                                                 printf("  ");           \
 136                                 }                                       \
 137                         } while (0);                                    \
 138
 139
 140 static const struct {
 141         const char      *name;
 142         int             index;
 143 } pf_limits[] = {
 144         { "states",             PF_LIMIT_STATES },
 145         { "src-nodes",          PF_LIMIT_SRC_NODES },
 146         { "frags",              PF_LIMIT_FRAGS },
 147         { "tables",             PF_LIMIT_TABLES },
 148         { "table-entries",      PF_LIMIT_TABLE_ENTRIES },
 149         { NULL,                 0 }
 150 };
 151
 152 struct pf_hint {
 153         const char      *name;
 154         int             timeout;
 155 };
 156 static const struct pf_hint pf_hint_normal[] = {
 157         { "tcp.first",          2 * 60 },
 158         { "tcp.opening",        30 },
 159         { "tcp.established",    24 * 60 * 60 },
 160         { "tcp.closing",        15 * 60 },
 161         { "tcp.finwait",        45 },
 162         { "tcp.closed",         90 },
 163         { "tcp.tsdiff",         30 },
 164         { NULL,                 0 }
 165 };
 166 static const struct pf_hint pf_hint_satellite[] = {
 167         { "tcp.first",          3 * 60 },
 168         { "tcp.opening",        30 + 5 },
 169         { "tcp.established",    24 * 60 * 60 },
 170         { "tcp.closing",        15 * 60 + 5 },
 171         { "tcp.finwait",        45 + 5 },
 172         { "tcp.closed",         90 + 5 },
 173         { "tcp.tsdiff",         60 },
 174         { NULL,                 0 }
 175 };
 176 static const struct pf_hint pf_hint_conservative[] = {
 177         { "tcp.first",          60 * 60 },
 178         { "tcp.opening",        15 * 60 },
 179         { "tcp.established",    5 * 24 * 60 * 60 },
 180         { "tcp.closing",        60 * 60 },
 181         { "tcp.finwait",        10 * 60 },
 182         { "tcp.closed",         3 * 60 },
 183         { "tcp.tsdiff",         60 },
 184         { NULL,                 0 }
 185 };
 186 static const struct pf_hint pf_hint_aggressive[] = {
 187         { "tcp.first",          30 },
 188         { "tcp.opening",        5 },
 189         { "tcp.established",    5 * 60 * 60 },
 190         { "tcp.closing",        60 },
 191         { "tcp.finwait",        30 },
 192         { "tcp.closed",         30 },
 193         { "tcp.tsdiff",         10 },
 194         { NULL,                 0 }
 195 };
 196
 197 static const struct {
 198         const char *name;
 199         const struct pf_hint *hint;
 200 } pf_hints[] = {
 201         { "normal",             pf_hint_normal },
 202         { "satellite",          pf_hint_satellite },
 203         { "high-latency",       pf_hint_satellite },
 204         { "conservative",       pf_hint_conservative },
 205         { "aggressive",         pf_hint_aggressive },
 206         { NULL,                 NULL }
 207 };
 208
 209 static const char *clearopt_list[] = {
 210         "nat", "queue", "rules", "Sources",
 211         "state", "info", "Tables", "osfp", "all", NULL
 212 };
 213
 214 static const char *showopt_list[] = {
 215         "nat", "queue", "rules", "Anchors", "Sources", "state", "info",
 216         "Interfaces", "labels", "timeouts", "memory", "Tables", "osfp",
 217         "all", NULL
 218 };
 219
 220 static const char *tblcmdopt_list[] = {
 221         "kill", "flush", "add", "delete", "load", "replace", "show",
 222         "test", "zero", "expire", NULL
 223 };
 224
 225 static const char *debugopt_list[] = {
 226         "none", "urgent", "misc", "loud", NULL
 227 };
 228
 229 static const char *optiopt_list[] = {
 230         "o", "none", "basic", "profile", NULL
 231 };
 232
 233 void
 234 usage(void)
 235 {
 236         extern char *__progname;
 237
 238         fprintf(stderr, "usage: %s [-AdeghmNnOqRrvz] ", __progname);
 239         fprintf(stderr, "[-a anchor] [-D macro=value] [-F modifier]\n");
 240         fprintf(stderr, "\t[-f file] [-i interface] [-K host | network] ");
 241         fprintf(stderr, "[-k host | network ]\n");
 242         fprintf(stderr, "\t[-o [level]] [-p device] [-s modifier ]\n");
 243         fprintf(stderr, "\t[-t table -T command [address ...]] [-x level]\n");
 244         exit(1);
 245 }
 246
 247 int
 248 pfctl_enable(int dev, int opts)
 249 {
 250         if (ioctl(dev, DIOCSTART)) {
 251                 if (errno == EEXIST)
 252                         errx(1, "pf already enabled");
 253 #ifdef __FreeBSD__
 254                 else if (errno == ESRCH)
 255                         errx(1, "pfil registeration failed");
 256 #endif
 257                 else
 258                         err(1, "DIOCSTART");
 259         }
 260         if ((opts & PF_OPT_QUIET) == 0)
 261                 fprintf(stderr, "pf enabled\n");
 262
 263         if (altqsupport && ioctl(dev, DIOCSTARTALTQ))
 264                 if (errno != EEXIST)
 265                         err(1, "DIOCSTARTALTQ");
 266
 267         return (0);
 268 }
 269
 270 int
 271 pfctl_disable(int dev, int opts)
 272 {
 273         if (ioctl(dev, DIOCSTOP)) {
 274                 if (errno == ENOENT)
 275                         errx(1, "pf not enabled");
 276                 else
 277                         err(1, "DIOCSTOP");
 278         }
 279         if ((opts & PF_OPT_QUIET) == 0)
 280                 fprintf(stderr, "pf disabled\n");
 281
 282         if (altqsupport && ioctl(dev, DIOCSTOPALTQ))
 283                         if (errno != ENOENT)
 284                                 err(1, "DIOCSTOPALTQ");
 285
 286         return (0);
 287 }
 288
 289 int
 290 pfctl_clear_stats(int dev, int opts)
 291 {
 292         if (ioctl(dev, DIOCCLRSTATUS))
 293                 err(1, "DIOCCLRSTATUS");
 294         if ((opts & PF_OPT_QUIET) == 0)
 295                 fprintf(stderr, "pf: statistics cleared\n");
 296         return (0);
 297 }
 298
 299 int
 300 pfctl_clear_interface_flags(int dev, int opts)
 301 {
 302         struct pfioc_iface      pi;
 303
 304         if ((opts & PF_OPT_NOACTION) == 0) {
 305                 bzero(&pi, sizeof(pi));
 306                 pi.pfiio_flags = PFI_IFLAG_SKIP;
 307
 308                 if (ioctl(dev, DIOCCLRIFFLAG, &pi))
 309                         err(1, "DIOCCLRIFFLAG");
 310                 if ((opts & PF_OPT_QUIET) == 0)
 311                         fprintf(stderr, "pf: interface flags reset\n");
 312         }
 313         return (0);
 314 }
 315
 316 int
 317 pfctl_clear_rules(int dev, int opts, char *anchorname)
 318 {
 319         struct pfr_buffer t;
 320
 321         memset(&t, 0, sizeof(t));
 322         t.pfrb_type = PFRB_TRANS;
 323         if (pfctl_add_trans(&t, PF_RULESET_SCRUB, anchorname) ||
 324             pfctl_add_trans(&t, PF_RULESET_FILTER, anchorname) ||
 325             pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
 326             pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
 327                 err(1, "pfctl_clear_rules");
 328         if ((opts & PF_OPT_QUIET) == 0)
 329                 fprintf(stderr, "rules cleared\n");
 330         return (0);
 331 }
 332
 333 int
 334 pfctl_clear_nat(int dev, int opts, char *anchorname)
 335 {
 336         struct pfr_buffer t;
 337
 338         memset(&t, 0, sizeof(t));
 339         t.pfrb_type = PFRB_TRANS;
 340         if (pfctl_add_trans(&t, PF_RULESET_NAT, anchorname) ||
 341             pfctl_add_trans(&t, PF_RULESET_BINAT, anchorname) ||
 342             pfctl_add_trans(&t, PF_RULESET_RDR, anchorname) ||
 343             pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
 344             pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
 345                 err(1, "pfctl_clear_nat");
 346         if ((opts & PF_OPT_QUIET) == 0)
 347                 fprintf(stderr, "nat cleared\n");
 348         return (0);
 349 }
 350
 351 int
 352 pfctl_clear_altq(int dev, int opts)
 353 {
 354         struct pfr_buffer t;
 355
 356         if (!altqsupport)
 357                 return (-1);
 358         memset(&t, 0, sizeof(t));
 359         t.pfrb_type = PFRB_TRANS;
 360         if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") ||
 361             pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
 362             pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
 363                 err(1, "pfctl_clear_altq");
 364         if ((opts & PF_OPT_QUIET) == 0)
 365                 fprintf(stderr, "altq cleared\n");
 366         return (0);
 367 }
 368
 369 int
 370 pfctl_clear_src_nodes(int dev, int opts)
 371 {
 372         if (ioctl(dev, DIOCCLRSRCNODES))
 373                 err(1, "DIOCCLRSRCNODES");
 374         if ((opts & PF_OPT_QUIET) == 0)
 375                 fprintf(stderr, "source tracking entries cleared\n");
 376         return (0);
 377 }
 378
 379 int
 380 pfctl_clear_states(int dev, const char *iface, int opts)
 381 {
 382         struct pfioc_state_kill psk;
 383
 384         memset(&psk, 0, sizeof(psk));
 385         if (iface != NULL && strlcpy(psk.psk_ifname, iface,
 386             sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname))
 387                 errx(1, "invalid interface: %s", iface);
 388
 389         if (ioctl(dev, DIOCCLRSTATES, &psk))
 390                 err(1, "DIOCCLRSTATES");
 391         if ((opts & PF_OPT_QUIET) == 0)
 392                 fprintf(stderr, "%d states cleared\n", psk.psk_af);
 393         return (0);
 394 }
 395
 396 void
 397 pfctl_addrprefix(char *addr, struct pf_addr *mask)
 398 {
 399         char *p;
 400         const char *errstr;
 401         int prefix, ret_ga, q, r;
 402         struct addrinfo hints, *res;
 403
 404         if ((p = strchr(addr, '/')) == NULL)
 405                 return;
 406
 407         *p++ = '\0';
 408         prefix = strtonum(p, 0, 128, &errstr);
 409         if (errstr)
 410                 errx(1, "prefix is %s: %s", errstr, p);
 411
 412         bzero(&hints, sizeof(hints));
 413         /* prefix only with numeric addresses */
 414         hints.ai_flags |= AI_NUMERICHOST;
 415
 416         if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) {
 417                 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
 418                 /* NOTREACHED */
 419         }
 420
 421         if (res->ai_family == AF_INET && prefix > 32)
 422                 errx(1, "prefix too long for AF_INET");
 423         else if (res->ai_family == AF_INET6 && prefix > 128)
 424                 errx(1, "prefix too long for AF_INET6");
 425
 426         q = prefix >> 3;
 427         r = prefix & 7;
 428         switch (res->ai_family) {
 429         case AF_INET:
 430                 bzero(&mask->v4, sizeof(mask->v4));
 431                 mask->v4.s_addr = htonl((u_int32_t)
 432                     (0xffffffffffULL << (32 - prefix)));
 433                 break;
 434         case AF_INET6:
 435                 bzero(&mask->v6, sizeof(mask->v6));
 436                 if (q > 0)
 437                         memset((void *)&mask->v6, 0xff, q);
 438                 if (r > 0)
 439                         *((u_char *)&mask->v6 + q) =
 440                             (0xff00 >> r) & 0xff;
 441                 break;
 442         }
 443         freeaddrinfo(res);
 444 }
 445
 446 int
 447 pfctl_kill_src_nodes(int dev, const char *iface, int opts)
 448 {
 449         struct pfioc_src_node_kill psnk;
 450         struct addrinfo *res[2], *resp[2];
 451         struct sockaddr last_src, last_dst;
 452         int killed, sources, dests;
 453         int ret_ga;
 454
 455         killed = sources = dests = 0;
 456
 457         memset(&psnk, 0, sizeof(psnk));
 458         memset(&psnk.psnk_src.addr.v.a.mask, 0xff,
 459             sizeof(psnk.psnk_src.addr.v.a.mask));
 460         memset(&last_src, 0xff, sizeof(last_src));
 461         memset(&last_dst, 0xff, sizeof(last_dst));
 462
 463         pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask);
 464
 465         if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) {
 466                 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
 467                 /* NOTREACHED */
 468         }
 469         for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
 470                 if (resp[0]->ai_addr == NULL)
 471                         continue;
 472                 /* We get lots of duplicates.  Catch the easy ones */
 473                 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
 474                         continue;
 475                 last_src = *(struct sockaddr *)resp[0]->ai_addr;
 476
 477                 psnk.psnk_af = resp[0]->ai_family;
 478                 sources++;
 479
 480                 if (psnk.psnk_af == AF_INET)
 481                         psnk.psnk_src.addr.v.a.addr.v4 =
 482                             ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
 483                 else if (psnk.psnk_af == AF_INET6)
 484                         psnk.psnk_src.addr.v.a.addr.v6 =
 485                             ((struct sockaddr_in6 *)resp[0]->ai_addr)->
 486                             sin6_addr;
 487                 else
 488                         errx(1, "Unknown address family %d", psnk.psnk_af);
 489
 490                 if (src_node_killers > 1) {
 491                         dests = 0;
 492                         memset(&psnk.psnk_dst.addr.v.a.mask, 0xff,
 493                             sizeof(psnk.psnk_dst.addr.v.a.mask));
 494                         memset(&last_dst, 0xff, sizeof(last_dst));
 495                         pfctl_addrprefix(src_node_kill[1],
 496                             &psnk.psnk_dst.addr.v.a.mask);
 497                         if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL,
 498                             &res[1]))) {
 499                                 errx(1, "getaddrinfo: %s",
 500                                     gai_strerror(ret_ga));
 501                                 /* NOTREACHED */
 502                         }
 503                         for (resp[1] = res[1]; resp[1];
 504                             resp[1] = resp[1]->ai_next) {
 505                                 if (resp[1]->ai_addr == NULL)
 506                                         continue;
 507                                 if (psnk.psnk_af != resp[1]->ai_family)
 508                                         continue;
 509
 510                                 if (memcmp(&last_dst, resp[1]->ai_addr,
 511                                     sizeof(last_dst)) == 0)
 512                                         continue;
 513                                 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
 514
 515                                 dests++;
 516
 517                                 if (psnk.psnk_af == AF_INET)
 518                                         psnk.psnk_dst.addr.v.a.addr.v4 =
 519                                             ((struct sockaddr_in *)resp[1]->
 520                                             ai_addr)->sin_addr;
 521                                 else if (psnk.psnk_af == AF_INET6)
 522                                         psnk.psnk_dst.addr.v.a.addr.v6 =
 523                                             ((struct sockaddr_in6 *)resp[1]->
 524                                             ai_addr)->sin6_addr;
 525                                 else
 526                                         errx(1, "Unknown address family %d",
 527                                             psnk.psnk_af);
 528
 529                                 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
 530                                         err(1, "DIOCKILLSRCNODES");
 531                                 killed += psnk.psnk_af;
 532                                 /* fixup psnk.psnk_af */
 533                                 psnk.psnk_af = resp[1]->ai_family;
 534                         }
 535                         freeaddrinfo(res[1]);
 536                 } else {
 537                         if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
 538                                 err(1, "DIOCKILLSRCNODES");
 539                         killed += psnk.psnk_af;
 540                         /* fixup psnk.psnk_af */
 541                         psnk.psnk_af = res[0]->ai_family;
 542                 }
 543         }
 544
 545         freeaddrinfo(res[0]);
 546
 547         if ((opts & PF_OPT_QUIET) == 0)
 548                 fprintf(stderr, "killed %d src nodes from %d sources and %d "
 549                     "destinations\n", killed, sources, dests);
 550         return (0);
 551 }
 552
 553 int
 554 pfctl_kill_states(int dev, const char *iface, int opts)
 555 {
 556         struct pfioc_state_kill psk;
 557         struct addrinfo *res[2], *resp[2];
 558         struct sockaddr last_src, last_dst;
 559         int killed, sources, dests;
 560         int ret_ga;
 561
 562         killed = sources = dests = 0;
 563
 564         memset(&psk, 0, sizeof(psk));
 565         memset(&psk.psk_src.addr.v.a.mask, 0xff,
 566             sizeof(psk.psk_src.addr.v.a.mask));
 567         memset(&last_src, 0xff, sizeof(last_src));
 568         memset(&last_dst, 0xff, sizeof(last_dst));
 569         if (iface != NULL && strlcpy(psk.psk_ifname, iface,
 570             sizeof(psk.psk_ifname)) >= sizeof(psk.psk_ifname))
 571                 errx(1, "invalid interface: %s", iface);
 572
 573         pfctl_addrprefix(state_kill[0], &psk.psk_src.addr.v.a.mask);
 574
 575         if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) {
 576                 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
 577                 /* NOTREACHED */
 578         }
 579         for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
 580                 if (resp[0]->ai_addr == NULL)
 581                         continue;
 582                 /* We get lots of duplicates.  Catch the easy ones */
 583                 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
 584                         continue;
 585                 last_src = *(struct sockaddr *)resp[0]->ai_addr;
 586
 587                 psk.psk_af = resp[0]->ai_family;
 588                 sources++;
 589
 590                 if (psk.psk_af == AF_INET)
 591                         psk.psk_src.addr.v.a.addr.v4 =
 592                             ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
 593                 else if (psk.psk_af == AF_INET6)
 594                         psk.psk_src.addr.v.a.addr.v6 =
 595                             ((struct sockaddr_in6 *)resp[0]->ai_addr)->
 596                             sin6_addr;
 597                 else
 598                         errx(1, "Unknown address family %d", psk.psk_af);
 599
 600                 if (state_killers > 1) {
 601                         dests = 0;
 602                         memset(&psk.psk_dst.addr.v.a.mask, 0xff,
 603                             sizeof(psk.psk_dst.addr.v.a.mask));
 604                         memset(&last_dst, 0xff, sizeof(last_dst));
 605                         pfctl_addrprefix(state_kill[1],
 606                             &psk.psk_dst.addr.v.a.mask);
 607                         if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL,
 608                             &res[1]))) {
 609                                 errx(1, "getaddrinfo: %s",
 610                                     gai_strerror(ret_ga));
 611                                 /* NOTREACHED */
 612                         }
 613                         for (resp[1] = res[1]; resp[1];
 614                             resp[1] = resp[1]->ai_next) {
 615                                 if (resp[1]->ai_addr == NULL)
 616                                         continue;
 617                                 if (psk.psk_af != resp[1]->ai_family)
 618                                         continue;
 619
 620                                 if (memcmp(&last_dst, resp[1]->ai_addr,
 621                                     sizeof(last_dst)) == 0)
 622                                         continue;
 623                                 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
 624
 625                                 dests++;
 626
 627                                 if (psk.psk_af == AF_INET)
 628                                         psk.psk_dst.addr.v.a.addr.v4 =
 629                                             ((struct sockaddr_in *)resp[1]->
 630                                             ai_addr)->sin_addr;
 631                                 else if (psk.psk_af == AF_INET6)
 632                                         psk.psk_dst.addr.v.a.addr.v6 =
 633                                             ((struct sockaddr_in6 *)resp[1]->
 634                                             ai_addr)->sin6_addr;
 635                                 else
 636                                         errx(1, "Unknown address family %d",
 637                                             psk.psk_af);
 638
 639                                 if (ioctl(dev, DIOCKILLSTATES, &psk))
 640                                         err(1, "DIOCKILLSTATES");
 641                                 killed += psk.psk_af;
 642                                 /* fixup psk.psk_af */
 643                                 psk.psk_af = resp[1]->ai_family;
 644                         }
 645                         freeaddrinfo(res[1]);
 646                 } else {
 647                         if (ioctl(dev, DIOCKILLSTATES, &psk))
 648                                 err(1, "DIOCKILLSTATES");
 649                         killed += psk.psk_af;
 650                         /* fixup psk.psk_af */
 651                         psk.psk_af = res[0]->ai_family;
 652                 }
 653         }
 654
 655         freeaddrinfo(res[0]);
 656
 657         if ((opts & PF_OPT_QUIET) == 0)
 658                 fprintf(stderr, "killed %d states from %d sources and %d "
 659                     "destinations\n", killed, sources, dests);
 660         return (0);
 661 }
 662
 663 int
 664 pfctl_get_pool(int dev, struct pf_pool *pool, u_int32_t nr,
 665     u_int32_t ticket, int r_action, char *anchorname)
 666 {
 667         struct pfioc_pooladdr pp;
 668         struct pf_pooladdr *pa;
 669         u_int32_t pnr, mpnr;
 670
 671         memset(&pp, 0, sizeof(pp));
 672         memcpy(pp.anchor, anchorname, sizeof(pp.anchor));
 673         pp.r_action = r_action;
 674         pp.r_num = nr;
 675         pp.ticket = ticket;
 676         if (ioctl(dev, DIOCGETADDRS, &pp)) {
 677                 warn("DIOCGETADDRS");
 678                 return (-1);
 679         }
 680         mpnr = pp.nr;
 681         TAILQ_INIT(&pool->list);
 682         for (pnr = 0; pnr < mpnr; ++pnr) {
 683                 pp.nr = pnr;
 684                 if (ioctl(dev, DIOCGETADDR, &pp)) {
 685                         warn("DIOCGETADDR");
 686                         return (-1);
 687                 }
 688                 pa = calloc(1, sizeof(struct pf_pooladdr));
 689                 if (pa == NULL)
 690                         err(1, "calloc");
 691                 bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr));
 692                 TAILQ_INSERT_TAIL(&pool->list, pa, entries);
 693         }
 694
 695         return (0);
 696 }
 697
 698 void
 699 pfctl_move_pool(struct pf_pool *src, struct pf_pool *dst)
 700 {
 701         struct pf_pooladdr *pa;
 702
 703         while ((pa = TAILQ_FIRST(&src->list)) != NULL) {
 704                 TAILQ_REMOVE(&src->list, pa, entries);
 705                 TAILQ_INSERT_TAIL(&dst->list, pa, entries);
 706         }
 707 }
 708
 709 void
 710 pfctl_clear_pool(struct pf_pool *pool)
 711 {
 712         struct pf_pooladdr *pa;
 713
 714         while ((pa = TAILQ_FIRST(&pool->list)) != NULL) {
 715                 TAILQ_REMOVE(&pool->list, pa, entries);
 716                 free(pa);
 717         }
 718 }
 719
 720 void
 721 pfctl_print_rule_counters(struct pf_rule *rule, int opts)
 722 {
 723         if (opts & PF_OPT_DEBUG) {
 724                 const char *t[PF_SKIP_COUNT] = { "i", "d", "f",
 725                     "p", "sa", "sp", "da", "dp" };
 726                 int i;
 727
 728                 printf("  [ Skip steps: ");
 729                 for (i = 0; i < PF_SKIP_COUNT; ++i) {
 730                         if (rule->skip[i].nr == rule->nr + 1)
 731                                 continue;
 732                         printf("%s=", t[i]);
 733                         if (rule->skip[i].nr == -1)
 734                                 printf("end ");
 735                         else
 736                                 printf("%u ", rule->skip[i].nr);
 737                 }
 738                 printf("]\n");
 739
 740                 printf("  [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n",
 741                     rule->qname, rule->qid, rule->pqname, rule->pqid);
 742         }
 743         if (opts & PF_OPT_VERBOSE) {
 744                 printf("  [ Evaluations: %-8llu  Packets: %-8llu  "
 745                             "Bytes: %-10llu  States: %-6u]\n",
 746                             (unsigned long long)rule->evaluations,
 747                             (unsigned long long)(rule->packets[0] +
 748                             rule->packets[1]),
 749                             (unsigned long long)(rule->bytes[0] +
 750                             rule->bytes[1]), rule->states);
 751                 if (!(opts & PF_OPT_DEBUG))
 752                         printf("  [ Inserted: uid %u pid %u ]\n",
 753                             (unsigned)rule->cuid, (unsigned)rule->cpid);
 754         }
 755 }
 756
 757 void
 758 pfctl_print_title(char *title)
 759 {
 760         if (!first_title)
 761                 printf("\n");
 762         first_title = 0;
 763         printf("%s\n", title);
 764 }
 765
 766 int
 767 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
 768     char *anchorname, int depth)
 769 {
 770         struct pfioc_rule pr;
 771         u_int32_t nr, mnr, header = 0;
 772         int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
 773         int len = strlen(path);
 774         int brace;
 775         char *p;
 776
 777         if (path[0])
 778                 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
 779         else
 780                 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
 781
 782         memset(&pr, 0, sizeof(pr));
 783         memcpy(pr.anchor, path, sizeof(pr.anchor));
 784         if (opts & PF_OPT_SHOWALL) {
 785                 pr.rule.action = PF_PASS;
 786                 if (ioctl(dev, DIOCGETRULES, &pr)) {
 787                         warn("DIOCGETRULES");
 788                         goto error;
 789                 }
 790                 header++;
 791         }
 792         pr.rule.action = PF_SCRUB;
 793         if (ioctl(dev, DIOCGETRULES, &pr)) {
 794                 warn("DIOCGETRULES");
 795                 goto error;
 796         }
 797         if (opts & PF_OPT_SHOWALL) {
 798                 if (format == PFCTL_SHOW_RULES && (pr.nr > 0 || header))
 799                         pfctl_print_title("FILTER RULES:");
 800                 else if (format == PFCTL_SHOW_LABELS && labels)
 801                         pfctl_print_title("LABEL COUNTERS:");
 802         }
 803         mnr = pr.nr;
 804         if (opts & PF_OPT_CLRRULECTRS)
 805                 pr.action = PF_GET_CLR_CNTR;
 806
 807         for (nr = 0; nr < mnr; ++nr) {
 808                 pr.nr = nr;
 809                 if (ioctl(dev, DIOCGETRULE, &pr)) {
 810                         warn("DIOCGETRULE");
 811                         goto error;
 812                 }
 813
 814                 if (pfctl_get_pool(dev, &pr.rule.rpool,
 815                     nr, pr.ticket, PF_SCRUB, path) != 0)
 816                         goto error;
 817
 818                 switch (format) {
 819                 case PFCTL_SHOW_LABELS:
 820                         if (pr.rule.label[0]) {
 821                                 printf("%s ", pr.rule.label);
 822                                 printf("%llu %llu %llu %llu %llu %llu %llu\n",
 823                                     (unsigned long long)pr.rule.evaluations,
 824                                     (unsigned long long)(pr.rule.packets[0] +
 825                                     pr.rule.packets[1]),
 826                                     (unsigned long long)(pr.rule.bytes[0] +
 827                                     pr.rule.bytes[1]),
 828                                     (unsigned long long)pr.rule.packets[0],
 829                                     (unsigned long long)pr.rule.bytes[0],
 830                                     (unsigned long long)pr.rule.packets[1],
 831                                     (unsigned long long)pr.rule.bytes[1]);
 832                         }
 833                         break;
 834                 case PFCTL_SHOW_RULES:
 835                         if (pr.rule.label[0] && (opts & PF_OPT_SHOWALL))
 836                                 labels = 1;
 837                         print_rule(&pr.rule, pr.anchor_call, rule_numbers);
 838                         printf("\n");
 839                         pfctl_print_rule_counters(&pr.rule, opts);
 840                         break;
 841                 case PFCTL_SHOW_NOTHING:
 842                         break;
 843                 }
 844                 pfctl_clear_pool(&pr.rule.rpool);
 845         }
 846         pr.rule.action = PF_PASS;
 847         if (ioctl(dev, DIOCGETRULES, &pr)) {
 848                 warn("DIOCGETRULES");
 849                 goto error;
 850         }
 851         mnr = pr.nr;
 852         for (nr = 0; nr < mnr; ++nr) {
 853                 pr.nr = nr;
 854                 if (ioctl(dev, DIOCGETRULE, &pr)) {
 855                         warn("DIOCGETRULE");
 856                         goto error;
 857                 }
 858
 859                 if (pfctl_get_pool(dev, &pr.rule.rpool,
 860                     nr, pr.ticket, PF_PASS, path) != 0)
 861                         goto error;
 862
 863                 switch (format) {
 864                 case PFCTL_SHOW_LABELS:
 865                         if (pr.rule.label[0]) {
 866                                 printf("%s ", pr.rule.label);
 867                                 printf("%llu %llu %llu %llu %llu %llu %llu\n",
 868                                     (unsigned long long)pr.rule.evaluations,
 869                                     (unsigned long long)(pr.rule.packets[0] +
 870                                     pr.rule.packets[1]),
 871                                     (unsigned long long)(pr.rule.bytes[0] +
 872                                     pr.rule.bytes[1]),
 873                                     (unsigned long long)pr.rule.packets[0],
 874                                     (unsigned long long)pr.rule.bytes[0],
 875                                     (unsigned long long)pr.rule.packets[1],
 876                                     (unsigned long long)pr.rule.bytes[1]);
 877                         }
 878                         break;
 879                 case PFCTL_SHOW_RULES:
 880                         brace = 0;
 881                         if (pr.rule.label[0] && (opts & PF_OPT_SHOWALL))
 882                                 labels = 1;
 883                         INDENT(depth, !(opts & PF_OPT_VERBOSE));
 884                         if (pr.anchor_call[0] &&
 885                            ((((p = strrchr(pr.anchor_call, '_')) != NULL) &&
 886                            ((void *)p == (void *)pr.anchor_call ||
 887                            *(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
 888                                 brace++;
 889                                 if ((p = strrchr(pr.anchor_call, '/')) !=
 890                                     NULL)
 891                                         p++;
 892                                 else
 893                                         p = &pr.anchor_call[0];
 894                         } else
 895                                 p = &pr.anchor_call[0];
 896
 897                         print_rule(&pr.rule, p, rule_numbers);
 898                         if (brace)
 899                                 printf(" {\n");
 900                         else
 901                                 printf("\n");
 902                         pfctl_print_rule_counters(&pr.rule, opts);
 903                         if (brace) {
 904                                 pfctl_show_rules(dev, path, opts, format,
 905                                     p, depth + 1);
 906                                 INDENT(depth, !(opts & PF_OPT_VERBOSE));
 907                                 printf("}\n");
 908                         }
 909                         break;
 910                 case PFCTL_SHOW_NOTHING:
 911                         break;
 912                 }
 913                 pfctl_clear_pool(&pr.rule.rpool);
 914         }
 915         path[len] = '\0';
 916         return (0);
 917
 918  error:
 919         path[len] = '\0';
 920         return (-1);
 921 }
 922
 923 int
 924 pfctl_show_nat(int dev, int opts, char *anchorname)
 925 {
 926         struct pfioc_rule pr;
 927         u_int32_t mnr, nr;
 928         static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
 929         int i, dotitle = opts & PF_OPT_SHOWALL;
 930
 931         memset(&pr, 0, sizeof(pr));
 932         memcpy(pr.anchor, anchorname, sizeof(pr.anchor));
 933         for (i = 0; i < 3; i++) {
 934                 pr.rule.action = nattype[i];
 935                 if (ioctl(dev, DIOCGETRULES, &pr)) {
 936                         warn("DIOCGETRULES");
 937                         return (-1);
 938                 }
 939                 mnr = pr.nr;
 940                 for (nr = 0; nr < mnr; ++nr) {
 941                         pr.nr = nr;
 942                         if (ioctl(dev, DIOCGETRULE, &pr)) {
 943                                 warn("DIOCGETRULE");
 944                                 return (-1);
 945                         }
 946                         if (pfctl_get_pool(dev, &pr.rule.rpool, nr,
 947                             pr.ticket, nattype[i], anchorname) != 0)
 948                                 return (-1);
 949                         if (dotitle) {
 950                                 pfctl_print_title("TRANSLATION RULES:");
 951                                 dotitle = 0;
 952                         }
 953                         print_rule(&pr.rule, pr.anchor_call,
 954                             opts & PF_OPT_VERBOSE2);
 955                         printf("\n");
 956                         pfctl_print_rule_counters(&pr.rule, opts);
 957                         pfctl_clear_pool(&pr.rule.rpool);
 958                 }
 959         }
 960         return (0);
 961 }
 962
 963 int
 964 pfctl_show_src_nodes(int dev, int opts)
 965 {
 966         struct pfioc_src_nodes psn;
 967         struct pf_src_node *p;
 968         char *inbuf = NULL, *newinbuf = NULL;
 969         unsigned len = 0;
 970         int i;
 971
 972         memset(&psn, 0, sizeof(psn));
 973         for (;;) {
 974                 psn.psn_len = len;
 975                 if (len) {
 976                         newinbuf = realloc(inbuf, len);
 977                         if (newinbuf == NULL)
 978                                 err(1, "realloc");
 979                         psn.psn_buf = inbuf = newinbuf;
 980                 }
 981                 if (ioctl(dev, DIOCGETSRCNODES, &psn) < 0) {
 982                         warn("DIOCGETSRCNODES");
 983                         free(inbuf);
 984                         return (-1);
 985                 }
 986                 if (psn.psn_len + sizeof(struct pfioc_src_nodes) < len)
 987                         break;
 988                 if (len == 0 && psn.psn_len == 0)
 989                         goto done;
 990                 if (len == 0 && psn.psn_len != 0)
 991                         len = psn.psn_len;
 992                 if (psn.psn_len == 0)
 993                         goto done;      /* no src_nodes */
 994                 len *= 2;
 995         }
 996         p = psn.psn_src_nodes;
 997         if (psn.psn_len > 0 && (opts & PF_OPT_SHOWALL))
 998                 pfctl_print_title("SOURCE TRACKING NODES:");
 999         for (i = 0; i < psn.psn_len; i += sizeof(*p)) {
1000                 print_src_node(p, opts);
1001                 p++;
1002         }
1003 done:
1004         free(inbuf);
1005         return (0);
1006 }
1007
1008 int
1009 pfctl_show_states(int dev, const char *iface, int opts)
1010 {
1011         struct pfioc_states ps;
1012         struct pf_state *p;
1013         char *inbuf = NULL, *newinbuf = NULL;
1014         unsigned len = 0;
1015         int i, dotitle = (opts & PF_OPT_SHOWALL);
1016
1017         memset(&ps, 0, sizeof(ps));
1018         for (;;) {
1019                 ps.ps_len = len;
1020                 if (len) {
1021                         newinbuf = realloc(inbuf, len);
1022                         if (newinbuf == NULL)
1023                                 err(1, "realloc");
1024                         ps.ps_buf = inbuf = newinbuf;
1025                 }
1026                 if (ioctl(dev, DIOCGETSTATES, &ps) < 0) {
1027                         warn("DIOCGETSTATES");
1028                         free(inbuf);
1029                         return (-1);
1030                 }
1031                 if (ps.ps_len + sizeof(struct pfioc_states) < len)
1032                         break;
1033                 if (len == 0 && ps.ps_len == 0)
1034                         goto done;
1035                 if (len == 0 && ps.ps_len != 0)
1036                         len = ps.ps_len;
1037                 if (ps.ps_len == 0)
1038                         goto done;      /* no states */
1039                 len *= 2;
1040         }
1041         p = ps.ps_states;
1042         for (i = 0; i < ps.ps_len; i += sizeof(*p), p++) {
1043                 if (iface != NULL && strcmp(p->u.ifname, iface))
1044                         continue;
1045                 if (dotitle) {
1046                         pfctl_print_title("STATES:");
1047                         dotitle = 0;
1048                 }
1049                 print_state(p, opts);
1050         }
1051 done:
1052         free(inbuf);
1053         return (0);
1054 }
1055
1056 int
1057 pfctl_show_status(int dev, int opts)
1058 {
1059         struct pf_status status;
1060
1061         if (ioctl(dev, DIOCGETSTATUS, &status)) {
1062                 warn("DIOCGETSTATUS");
1063                 return (-1);
1064         }
1065         if (opts & PF_OPT_SHOWALL)
1066                 pfctl_print_title("INFO:");
1067         print_status(&status, opts);
1068         return (0);
1069 }
1070
1071 int
1072 pfctl_show_timeouts(int dev, int opts)
1073 {
1074         struct pfioc_tm pt;
1075         int i;
1076
1077         if (opts & PF_OPT_SHOWALL)
1078                 pfctl_print_title("TIMEOUTS:");
1079         memset(&pt, 0, sizeof(pt));
1080         for (i = 0; pf_timeouts[i].name; i++) {
1081                 pt.timeout = pf_timeouts[i].timeout;
1082                 if (ioctl(dev, DIOCGETTIMEOUT, &pt))
1083                         err(1, "DIOCGETTIMEOUT");
1084                 printf("%-20s %10d", pf_timeouts[i].name, pt.seconds);
1085                 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START &&
1086                     pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END)
1087                         printf(" states");
1088                 else
1089                         printf("s");
1090                 printf("\n");
1091         }
1092         return (0);
1093
1094 }
1095
1096 int
1097 pfctl_show_limits(int dev, int opts)
1098 {
1099         struct pfioc_limit pl;
1100         int i;
1101
1102         if (opts & PF_OPT_SHOWALL)
1103                 pfctl_print_title("LIMITS:");
1104         memset(&pl, 0, sizeof(pl));
1105         for (i = 0; pf_limits[i].name; i++) {
1106                 pl.index = pf_limits[i].index;
1107                 if (ioctl(dev, DIOCGETLIMIT, &pl))
1108                         err(1, "DIOCGETLIMIT");
1109                 printf("%-13s ", pf_limits[i].name);
1110                 if (pl.limit == UINT_MAX)
1111                         printf("unlimited\n");
1112                 else
1113                         printf("hard limit %8u\n", pl.limit);
1114         }
1115         return (0);
1116 }
1117
1118 /* callbacks for rule/nat/rdr/addr */
1119 int
1120 pfctl_add_pool(struct pfctl *pf, struct pf_pool *p, sa_family_t af)
1121 {
1122         struct pf_pooladdr *pa;
1123
1124         if ((pf->opts & PF_OPT_NOACTION) == 0) {
1125                 if (ioctl(pf->dev, DIOCBEGINADDRS, &pf->paddr))
1126                         err(1, "DIOCBEGINADDRS");
1127         }
1128
1129         pf->paddr.af = af;
1130         TAILQ_FOREACH(pa, &p->list, entries) {
1131                 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr));
1132                 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1133                         if (ioctl(pf->dev, DIOCADDADDR, &pf->paddr))
1134                                 err(1, "DIOCADDADDR");
1135                 }
1136         }
1137         return (0);
1138 }
1139
1140 int
1141 pfctl_add_rule(struct pfctl *pf, struct pf_rule *r, const char *anchor_call)
1142 {
1143         u_int8_t                rs_num;
1144         struct pf_rule          *rule;
1145         struct pf_ruleset       *rs;
1146         char                    *p;
1147
1148         rs_num = pf_get_ruleset_number(r->action);
1149         if (rs_num == PF_RULESET_MAX)
1150                 errx(1, "Invalid rule type %d", r->action);
1151
1152         rs = &pf->anchor->ruleset;
1153
1154         if (anchor_call[0] && r->anchor == NULL) {
1155                 /*
1156                  * Don't make non-brace anchors part of the main anchor pool.
1157                  */
1158                 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1159                         err(1, "pfctl_add_rule: calloc");
1160
1161                 pf_init_ruleset(&r->anchor->ruleset);
1162                 r->anchor->ruleset.anchor = r->anchor;
1163                 if (strlcpy(r->anchor->path, anchor_call,
1164                     sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1165                         errx(1, "pfctl_add_rule: strlcpy");
1166                 if ((p = strrchr(anchor_call, '/')) != NULL) {
1167                         if (!strlen(p))
1168                                 err(1, "pfctl_add_rule: bad anchor name %s",
1169                                     anchor_call);
1170                 } else
1171                         p = (char *)anchor_call;
1172                 if (strlcpy(r->anchor->name, p,
1173                     sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1174                         errx(1, "pfctl_add_rule: strlcpy");
1175         }
1176
1177         if ((rule = calloc(1, sizeof(*rule))) == NULL)
1178                 err(1, "calloc");
1179         bcopy(r, rule, sizeof(*rule));
1180         TAILQ_INIT(&rule->rpool.list);
1181         pfctl_move_pool(&r->rpool, &rule->rpool);
1182
1183         TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
1184         return (0);
1185 }
1186
1187 int
1188 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pf_anchor *a)
1189 {
1190         int osize = pf->trans->pfrb_size;
1191
1192         if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) {
1193                 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) ||
1194                     pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) ||
1195                     pfctl_add_trans(pf->trans, PF_RULESET_RDR, path))
1196                         return (1);
1197         }
1198         if (a == pf->astack[0] && ((altqsupport &&
1199              (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) {
1200                 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path))
1201                         return (2);
1202         }
1203         if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) {
1204                 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) ||
1205                     pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path))
1206                         return (3);
1207         }
1208         if (pf->loadopt & PFCTL_FLAG_TABLE)
1209                 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path))
1210                         return (4);
1211         if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1212                 return (5);
1213
1214         return (0);
1215 }
1216
1217 int
1218 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pf_ruleset *rs,
1219     int rs_num, int depth)
1220 {
1221         struct pf_rule *r;
1222         int             error, len = strlen(path);
1223         int             brace = 0;
1224
1225         pf->anchor = rs->anchor;
1226
1227         if (path[0])
1228                 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name);
1229         else
1230                 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name);
1231
1232         if (depth) {
1233                 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) {
1234                         brace++;
1235                         if (pf->opts & PF_OPT_VERBOSE)
1236                                 printf(" {\n");
1237                         if ((pf->opts & PF_OPT_NOACTION) == 0 &&
1238                             (error = pfctl_ruleset_trans(pf,
1239                             path, rs->anchor))) {
1240                                 printf("pfctl_load_rulesets: "
1241                                     "pfctl_ruleset_trans %d\n", error);
1242                                 goto error;
1243                         }
1244                 } else if (pf->opts & PF_OPT_VERBOSE)
1245                         printf("\n");
1246
1247         }
1248
1249         if (pf->optimize && rs_num == PF_RULESET_FILTER)
1250                 pfctl_optimize_ruleset(pf, rs);
1251
1252         while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) {
1253                 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries);
1254                 if ((error = pfctl_load_rule(pf, path, r, depth)))
1255                         goto error;
1256                 if (r->anchor) {
1257                         if ((error = pfctl_load_ruleset(pf, path,
1258                             &r->anchor->ruleset, rs_num, depth + 1)))
1259                                 goto error;
1260                 } else if (pf->opts & PF_OPT_VERBOSE)
1261                         printf("\n");
1262                 free(r);
1263         }
1264         if (brace && pf->opts & PF_OPT_VERBOSE) {
1265                 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
1266                 printf("}\n");
1267         }
1268         path[len] = '\0';
1269         return (0);
1270
1271  error:
1272         path[len] = '\0';
1273         return (error);
1274
1275 }
1276
1277 int
1278 pfctl_load_rule(struct pfctl *pf, char *path, struct pf_rule *r, int depth)
1279 {
1280         u_int8_t                rs_num = pf_get_ruleset_number(r->action);
1281         char                    *name;
1282         struct pfioc_rule       pr;
1283         int                     len = strlen(path);
1284
1285         bzero(&pr, sizeof(pr));
1286         /* set up anchor before adding to path for anchor_call */
1287         if ((pf->opts & PF_OPT_NOACTION) == 0)
1288                 pr.ticket = pfctl_get_ticket(pf->trans, rs_num, path);
1289         if (strlcpy(pr.anchor, path, sizeof(pr.anchor)) >= sizeof(pr.anchor))
1290                 errx(1, "pfctl_load_rule: strlcpy");
1291
1292         if (r->anchor) {
1293                 if (r->anchor->match) {
1294                         if (path[0])
1295                                 snprintf(&path[len], MAXPATHLEN - len,
1296                                     "/%s", r->anchor->name);
1297                         else
1298                                 snprintf(&path[len], MAXPATHLEN - len,
1299                                     "%s", r->anchor->name);
1300                         name = path;
1301                 } else
1302                         name = r->anchor->path;
1303         } else
1304                 name = "";
1305
1306         if ((pf->opts & PF_OPT_NOACTION) == 0) {
1307                 if (pfctl_add_pool(pf, &r->rpool, r->af))
1308                         return (1);
1309                 pr.pool_ticket = pf->paddr.ticket;
1310                 memcpy(&pr.rule, r, sizeof(pr.rule));
1311                 if (r->anchor && strlcpy(pr.anchor_call, name,
1312                     sizeof(pr.anchor_call)) >= sizeof(pr.anchor_call))
1313                         errx(1, "pfctl_load_rule: strlcpy");
1314                 if (ioctl(pf->dev, DIOCADDRULE, &pr))
1315                         err(1, "DIOCADDRULE");
1316         }
1317
1318         if (pf->opts & PF_OPT_VERBOSE) {
1319                 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
1320                 print_rule(r, r->anchor ? r->anchor->name : "",
1321                     pf->opts & PF_OPT_VERBOSE2);
1322         }
1323         path[len] = '\0';
1324         pfctl_clear_pool(&r->rpool);
1325         return (0);
1326 }
1327
1328 int
1329 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a)
1330 {
1331         if (altqsupport &&
1332             (loadopt & PFCTL_FLAG_ALTQ) != 0) {
1333                 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq));
1334                 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1335                         if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) {
1336                                 if (errno == ENXIO)
1337                                         errx(1, "qtype not configured");
1338                                 else if (errno == ENODEV)
1339                                         errx(1, "%s: driver does not support "
1340                                             "altq", a->ifname);
1341                                 else
1342                                         err(1, "DIOCADDALTQ");
1343                         }
1344                 }
1345                 pfaltq_store(&pf->paltq->altq);
1346         }
1347         return (0);
1348 }
1349
1350 int
1351 pfctl_rules(int dev, char *filename, FILE *fin, int opts, int optimize,
1352     char *anchorname, struct pfr_buffer *trans)
1353 {
1354 #define ERR(x) do { warn(x); goto _error; } while(0)
1355 #define ERRX(x) do { warnx(x); goto _error; } while(0)
1356
1357         struct pfr_buffer       *t, buf;
1358         struct pfioc_altq        pa;
1359         struct pfctl             pf;
1360         struct pf_ruleset       *rs;
1361         struct pfr_table         trs;
1362         char                    *path;
1363         int                      osize;
1364
1365         RB_INIT(&pf_anchors);
1366         memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
1367         pf_init_ruleset(&pf_main_anchor.ruleset);
1368         pf_main_anchor.ruleset.anchor = &pf_main_anchor;
1369         if (trans == NULL) {
1370                 bzero(&buf, sizeof(buf));
1371                 buf.pfrb_type = PFRB_TRANS;
1372                 t = &buf;
1373                 osize = 0;
1374         } else {
1375                 t = trans;
1376                 osize = t->pfrb_size;
1377         }
1378
1379         memset(&pa, 0, sizeof(pa));
1380         memset(&pf, 0, sizeof(pf));
1381         memset(&trs, 0, sizeof(trs));
1382         if ((path = calloc(1, MAXPATHLEN)) == NULL)
1383                 ERRX("pfctl_rules: calloc");
1384         if (strlcpy(trs.pfrt_anchor, anchorname,
1385             sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
1386                 ERRX("pfctl_rules: strlcpy");
1387         infile = filename;
1388         pf.dev = dev;
1389         pf.opts = opts;
1390         pf.optimize = optimize;
1391         pf.loadopt = loadopt;
1392
1393         /* non-brace anchor, create without resolving the path */
1394         if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
1395                 ERRX("pfctl_rules: calloc");
1396         rs = &pf.anchor->ruleset;
1397         pf_init_ruleset(rs);
1398         rs->anchor = pf.anchor;
1399         if (strlcpy(pf.anchor->path, anchorname,
1400             sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path))
1401                 errx(1, "pfctl_add_rule: strlcpy");
1402         if (strlcpy(pf.anchor->name, anchorname,
1403             sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
1404                 errx(1, "pfctl_add_rule: strlcpy");
1405
1406
1407         pf.astack[0] = pf.anchor;
1408         pf.asd = 0;
1409         if (anchorname[0])
1410                 pf.loadopt &= ~PFCTL_FLAG_ALTQ;
1411         pf.paltq = &pa;
1412         pf.trans = t;
1413         pfctl_init_options(&pf);
1414
1415         if ((opts & PF_OPT_NOACTION) == 0) {
1416                 /*
1417                  * XXX For the time being we need to open transactions for
1418                  * the main ruleset before parsing, because tables are still
1419                  * loaded at parse time.
1420                  */
1421                 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor))
1422                         ERRX("pfctl_rules");
1423                 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
1424                         pa.ticket =
1425                             pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname);
1426                 if (pf.loadopt & PFCTL_FLAG_TABLE)
1427                         pf.astack[0]->ruleset.tticket =
1428                             pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname);
1429         }
1430
1431         if (parse_rules(fin, &pf) < 0) {
1432                 if ((opts & PF_OPT_NOACTION) == 0)
1433                         ERRX("Syntax error in config file: "
1434                             "pf rules not loaded");
1435                 else
1436                         goto _error;
1437         }
1438
1439         if ((pf.loadopt & PFCTL_FLAG_FILTER &&
1440             (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) ||
1441             (pf.loadopt & PFCTL_FLAG_NAT &&
1442             (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) ||
1443             pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) ||
1444             pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) ||
1445             (pf.loadopt & PFCTL_FLAG_FILTER &&
1446             pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) {
1447                 if ((opts & PF_OPT_NOACTION) == 0)
1448                         ERRX("Unable to load rules into kernel");
1449                 else
1450                         goto _error;
1451         }
1452
1453         if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
1454                 if (check_commit_altq(dev, opts) != 0)
1455                         ERRX("errors in altq config");
1456
1457         if (fin != stdin) {
1458                 fclose(fin);
1459                 fin = NULL;
1460         }
1461
1462         /* process "load anchor" directives */
1463         if (!anchorname[0])
1464                 if (pfctl_load_anchors(dev, &pf, t) == -1)
1465                         ERRX("load anchors");
1466
1467         if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) {
1468                 if (!anchorname[0])
1469                         if (pfctl_load_options(&pf))
1470                                 goto _error;
1471                 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
1472                         ERR("DIOCXCOMMIT");
1473         }
1474         return (0);
1475
1476 _error:
1477         if (trans == NULL) {    /* main ruleset */
1478                 if ((opts & PF_OPT_NOACTION) == 0)
1479                         if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
1480                                 err(1, "DIOCXROLLBACK");
1481                 exit(1);
1482         } else {                /* sub ruleset */
1483                 if (fin != NULL && fin != stdin)
1484                         fclose(fin);
1485                 return (-1);
1486         }
1487
1488 #undef ERR
1489 #undef ERRX
1490 }
1491
1492 FILE *
1493 pfctl_fopen(const char *name, const char *mode)
1494 {
1495         struct stat      st;
1496         FILE            *fp;
1497
1498         fp = fopen(name, mode);
1499         if (fp == NULL)
1500                 return (NULL);
1501         if (fstat(fileno(fp), &st)) {
1502                 fclose(fp);
1503                 return (NULL);
1504         }
1505         if (S_ISDIR(st.st_mode)) {
1506                 fclose(fp);
1507                 errno = EISDIR;
1508                 return (NULL);
1509         }
1510         return (fp);
1511 }
1512
1513 void
1514 pfctl_init_options(struct pfctl *pf)
1515 {
1516         int mib[2], mem;
1517         size_t size;
1518
1519         pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
1520         pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
1521         pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
1522         pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
1523         pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
1524         pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
1525         pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
1526         pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
1527         pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
1528         pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
1529         pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
1530         pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
1531         pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
1532         pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
1533         pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
1534         pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
1535         pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
1536         pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
1537         pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
1538         pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
1539
1540         pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
1541         pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
1542         pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT;
1543         pf->limit[PF_LIMIT_TABLES] = PFR_KTABLE_HIWAT;
1544         pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT;
1545
1546         mib[0] = CTL_HW;
1547         mib[1] = HW_PHYSMEM;
1548         size = sizeof(mem);
1549         (void) sysctl(mib, 2, &mem, &size, NULL, 0);
1550         if (mem <= 100*1024*1024)
1551                 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT_SMALL;
1552
1553         pf->debug = PF_DEBUG_URGENT;
1554 }
1555
1556 int
1557 pfctl_load_options(struct pfctl *pf)
1558 {
1559         int i, error = 0;
1560
1561         if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1562                 return (0);
1563
1564         /* load limits */
1565         for (i = 0; i < PF_LIMIT_MAX; i++) {
1566                 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i])
1567                         continue;
1568                 if (pfctl_load_limit(pf, i, pf->limit[i]))
1569                         error = 1;
1570         }
1571
1572         /*
1573          * If we've set the limit, but havn't explicitly set adaptive
1574          * timeouts, do it now with a start of 60% and end of 120%.
1575          */
1576         if (pf->limit_set[PF_LIMIT_STATES] &&
1577             !pf->timeout_set[PFTM_ADAPTIVE_START] &&
1578             !pf->timeout_set[PFTM_ADAPTIVE_END]) {
1579                 pf->timeout[PFTM_ADAPTIVE_START] =
1580                         (pf->limit[PF_LIMIT_STATES] / 10) * 6;
1581                 pf->timeout_set[PFTM_ADAPTIVE_START] = 1;
1582                 pf->timeout[PFTM_ADAPTIVE_END] =
1583                         (pf->limit[PF_LIMIT_STATES] / 10) * 12;
1584                 pf->timeout_set[PFTM_ADAPTIVE_END] = 1;
1585         }
1586
1587         /* load timeouts */
1588         for (i = 0; i < PFTM_MAX; i++) {
1589                 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i])
1590                         continue;
1591                 if (pfctl_load_timeout(pf, i, pf->timeout[i]))
1592                         error = 1;
1593         }
1594
1595         /* load debug */
1596         if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
1597                 if (pfctl_load_debug(pf, pf->debug))
1598                         error = 1;
1599
1600         /* load logif */
1601         if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
1602                 if (pfctl_load_logif(pf, pf->ifname))
1603                         error = 1;
1604
1605         /* load hostid */
1606         if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
1607                 if (pfctl_load_hostid(pf, pf->hostid))
1608                         error = 1;
1609
1610         return (error);
1611 }
1612
1613 int
1614 pfctl_set_limit(struct pfctl *pf, const char *opt, unsigned int limit)
1615 {
1616         int i;
1617
1618
1619         for (i = 0; pf_limits[i].name; i++) {
1620                 if (strcasecmp(opt, pf_limits[i].name) == 0) {
1621                         pf->limit[pf_limits[i].index] = limit;
1622                         pf->limit_set[pf_limits[i].index] = 1;
1623                         break;
1624                 }
1625         }
1626         if (pf_limits[i].name == NULL) {
1627                 warnx("Bad pool name.");
1628                 return (1);
1629         }
1630
1631         if (pf->opts & PF_OPT_VERBOSE)
1632                 printf("set limit %s %d\n", opt, limit);
1633
1634         return (0);
1635 }
1636
1637 int
1638 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
1639 {
1640         struct pfioc_limit pl;
1641
1642         memset(&pl, 0, sizeof(pl));
1643         pl.index = index;
1644         pl.limit = limit;
1645         if (ioctl(pf->dev, DIOCSETLIMIT, &pl)) {
1646                 if (errno == EBUSY)
1647                         warnx("Current pool size exceeds requested hard limit");
1648                 else
1649                         warnx("DIOCSETLIMIT");
1650                 return (1);
1651         }
1652         return (0);
1653 }
1654
1655 int
1656 pfctl_set_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet)
1657 {
1658         int i;
1659
1660         if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1661                 return (0);
1662
1663         for (i = 0; pf_timeouts[i].name; i++) {
1664                 if (strcasecmp(opt, pf_timeouts[i].name) == 0) {
1665                         pf->timeout[pf_timeouts[i].timeout] = seconds;
1666                         pf->timeout_set[pf_timeouts[i].timeout] = 1;
1667                         break;
1668                 }
1669         }
1670
1671         if (pf_timeouts[i].name == NULL) {
1672                 warnx("Bad timeout name.");
1673                 return (1);
1674         }
1675
1676
1677         if (pf->opts & PF_OPT_VERBOSE && ! quiet)
1678                 printf("set timeout %s %d\n", opt, seconds);
1679
1680         return (0);
1681 }
1682
1683 int
1684 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds)
1685 {
1686         struct pfioc_tm pt;
1687
1688         memset(&pt, 0, sizeof(pt));
1689         pt.timeout = timeout;
1690         pt.seconds = seconds;
1691         if (ioctl(pf->dev, DIOCSETTIMEOUT, &pt)) {
1692                 warnx("DIOCSETTIMEOUT");
1693                 return (1);
1694         }
1695         return (0);
1696 }
1697
1698 int
1699 pfctl_set_optimization(struct pfctl *pf, const char *opt)
1700 {
1701         const struct pf_hint *hint;
1702         int i, r;
1703
1704         if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1705                 return (0);
1706
1707         for (i = 0; pf_hints[i].name; i++)
1708                 if (strcasecmp(opt, pf_hints[i].name) == 0)
1709                         break;
1710
1711         hint = pf_hints[i].hint;
1712         if (hint == NULL) {
1713                 warnx("invalid state timeouts optimization");
1714                 return (1);
1715         }
1716
1717         for (i = 0; hint[i].name; i++)
1718                 if ((r = pfctl_set_timeout(pf, hint[i].name,
1719                     hint[i].timeout, 1)))
1720                         return (r);
1721
1722         if (pf->opts & PF_OPT_VERBOSE)
1723                 printf("set optimization %s\n", opt);
1724
1725         return (0);
1726 }
1727
1728 int
1729 pfctl_set_logif(struct pfctl *pf, char *ifname)
1730 {
1731
1732         if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1733                 return (0);
1734
1735         if (!strcmp(ifname, "none")) {
1736                 free(pf->ifname);
1737                 pf->ifname = NULL;
1738         } else {
1739                 pf->ifname = strdup(ifname);
1740                 if (!pf->ifname)
1741                         errx(1, "pfctl_set_logif: strdup");
1742         }
1743         pf->ifname_set = 1;
1744
1745         if (pf->opts & PF_OPT_VERBOSE)
1746                 printf("set loginterface %s\n", ifname);
1747
1748         return (0);
1749 }
1750
1751 int
1752 pfctl_load_logif(struct pfctl *pf, char *ifname)
1753 {
1754         struct pfioc_if pi;
1755
1756         memset(&pi, 0, sizeof(pi));
1757         if (ifname && strlcpy(pi.ifname, ifname,
1758             sizeof(pi.ifname)) >= sizeof(pi.ifname)) {
1759                 warnx("pfctl_load_logif: strlcpy");
1760                 return (1);
1761         }
1762         if (ioctl(pf->dev, DIOCSETSTATUSIF, &pi)) {
1763                 warnx("DIOCSETSTATUSIF");
1764                 return (1);
1765         }
1766         return (0);
1767 }
1768
1769 int
1770 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
1771 {
1772         if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1773                 return (0);
1774
1775         HTONL(hostid);
1776
1777         pf->hostid = hostid;
1778         pf->hostid_set = 1;
1779
1780         if (pf->opts & PF_OPT_VERBOSE)
1781                 printf("set hostid 0x%08x\n", ntohl(hostid));
1782
1783         return (0);
1784 }
1785
1786 int
1787 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid)
1788 {
1789         if (ioctl(dev, DIOCSETHOSTID, &hostid)) {
1790                 warnx("DIOCSETHOSTID");
1791                 return (1);
1792         }
1793         return (0);
1794 }
1795
1796 int
1797 pfctl_set_debug(struct pfctl *pf, char *d)
1798 {
1799         u_int32_t       level;
1800
1801         if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1802                 return (0);
1803
1804         if (!strcmp(d, "none"))
1805                 pf->debug = PF_DEBUG_NONE;
1806         else if (!strcmp(d, "urgent"))
1807                 pf->debug = PF_DEBUG_URGENT;
1808         else if (!strcmp(d, "misc"))
1809                 pf->debug = PF_DEBUG_MISC;
1810         else if (!strcmp(d, "loud"))
1811                 pf->debug = PF_DEBUG_NOISY;
1812         else {
1813                 warnx("unknown debug level \"%s\"", d);
1814                 return (-1);
1815         }
1816
1817         pf->debug_set = 1;
1818
1819         if ((pf->opts & PF_OPT_NOACTION) == 0)
1820                 if (ioctl(dev, DIOCSETDEBUG, &level))
1821                         err(1, "DIOCSETDEBUG");
1822
1823         if (pf->opts & PF_OPT_VERBOSE)
1824                 printf("set debug %s\n", d);
1825
1826         return (0);
1827 }
1828
1829 int
1830 pfctl_load_debug(struct pfctl *pf, unsigned int level)
1831 {
1832         if (ioctl(pf->dev, DIOCSETDEBUG, &level)) {
1833                 warnx("DIOCSETDEBUG");
1834                 return (1);
1835         }
1836         return (0);
1837 }
1838
1839 int
1840 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how)
1841 {
1842         struct pfioc_iface      pi;
1843
1844         if ((loadopt & PFCTL_FLAG_OPTION) == 0)
1845                 return (0);
1846
1847         bzero(&pi, sizeof(pi));
1848
1849         pi.pfiio_flags = flags;
1850
1851         if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >=
1852             sizeof(pi.pfiio_name))
1853                 errx(1, "pfctl_set_interface_flags: strlcpy");
1854
1855         if ((pf->opts & PF_OPT_NOACTION) == 0) {
1856                 if (how == 0) {
1857                         if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi))
1858                                 err(1, "DIOCCLRIFFLAG");
1859                 } else {
1860                         if (ioctl(pf->dev, DIOCSETIFFLAG, &pi))
1861                                 err(1, "DIOCSETIFFLAG");
1862                 }
1863         }
1864         return (0);
1865 }
1866
1867 void
1868 pfctl_debug(int dev, u_int32_t level, int opts)
1869 {
1870         if (ioctl(dev, DIOCSETDEBUG, &level))
1871                 err(1, "DIOCSETDEBUG");
1872         if ((opts & PF_OPT_QUIET) == 0) {
1873                 fprintf(stderr, "debug level set to '");
1874                 switch (level) {
1875                 case PF_DEBUG_NONE:
1876                         fprintf(stderr, "none");
1877                         break;
1878                 case PF_DEBUG_URGENT:
1879                         fprintf(stderr, "urgent");
1880                         break;
1881                 case PF_DEBUG_MISC:
1882                         fprintf(stderr, "misc");
1883                         break;
1884                 case PF_DEBUG_NOISY:
1885                         fprintf(stderr, "loud");
1886                         break;
1887                 default:
1888                         fprintf(stderr, "<invalid>");
1889                         break;
1890                 }
1891                 fprintf(stderr, "'\n");
1892         }
1893 }
1894
1895 int
1896 pfctl_test_altqsupport(int dev, int opts)
1897 {
1898 #if defined(__FreeBSD__) && !defined(ENABLE_ALTQ)
1899         return (0);
1900 #else
1901         struct pfioc_altq pa;
1902
1903         if (ioctl(dev, DIOCGETALTQS, &pa)) {
1904                 if (errno == ENODEV) {
1905                         if (!(opts & PF_OPT_QUIET))
1906                                 fprintf(stderr, "No ALTQ support in kernel\n"
1907                                     "ALTQ related functions disabled\n");
1908                         return (0);
1909                 } else
1910                         err(1, "DIOCGETALTQS");
1911         }
1912         return (1);
1913 #endif
1914 }
1915
1916 int
1917 pfctl_show_anchors(int dev, int opts, char *anchorname)
1918 {
1919         struct pfioc_ruleset     pr;
1920         u_int32_t                mnr, nr;
1921
1922         memset(&pr, 0, sizeof(pr));
1923         memcpy(pr.path, anchorname, sizeof(pr.path));
1924         if (ioctl(dev, DIOCGETRULESETS, &pr)) {
1925                 if (errno == EINVAL)
1926                         fprintf(stderr, "Anchor '%s' not found.\n",
1927                             anchorname);
1928                 else
1929                         err(1, "DIOCGETRULESETS");
1930                 return (-1);
1931         }
1932         mnr = pr.nr;
1933         for (nr = 0; nr < mnr; ++nr) {
1934                 char sub[MAXPATHLEN];
1935
1936                 pr.nr = nr;
1937                 if (ioctl(dev, DIOCGETRULESET, &pr))
1938                         err(1, "DIOCGETRULESET");
1939                 if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
1940                         continue;
1941                 sub[0] = 0;
1942                 if (pr.path[0]) {
1943                         strlcat(sub, pr.path, sizeof(sub));
1944                         strlcat(sub, "/", sizeof(sub));
1945                 }
1946                 strlcat(sub, pr.name, sizeof(sub));
1947                 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
1948                         printf("  %s\n", sub);
1949                 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub))
1950                         return (-1);
1951         }
1952         return (0);
1953 }
1954
1955 const char *
1956 pfctl_lookup_option(char *cmd, const char **list)
1957 {
1958         if (cmd != NULL && *cmd)
1959                 for (; *list; list++)
1960                         if (!strncmp(cmd, *list, strlen(cmd)))
1961                                 return (*list);
1962         return (NULL);
1963 }
1964
1965 int
1966 main(int argc, char *argv[])
1967 {
1968         int      error = 0;
1969         int      ch;
1970         int      mode = O_RDONLY;
1971         int      opts = 0;
1972         int      optimize = 0;
1973         char     anchorname[MAXPATHLEN];
1974         char    *path;
1975         FILE    *fin = NULL;
1976
1977         if (argc < 2)
1978                 usage();
1979
1980         while ((ch = getopt(argc, argv,
1981             "a:AdD:eqf:F:ghi:k:K:mnNOo::p:rRs:t:T:vx:z")) != -1) {
1982                 switch (ch) {
1983                 case 'a':
1984                         anchoropt = optarg;
1985                         break;
1986                 case 'd':
1987                         opts |= PF_OPT_DISABLE;
1988                         mode = O_RDWR;
1989                         break;
1990                 case 'D':
1991                         if (pfctl_cmdline_symset(optarg) < 0)
1992                                 warnx("could not parse macro definition %s",
1993                                     optarg);
1994                         break;
1995                 case 'e':
1996                         opts |= PF_OPT_ENABLE;
1997                         mode = O_RDWR;
1998                         break;
1999                 case 'q':
2000                         opts |= PF_OPT_QUIET;
2001                         break;
2002                 case 'F':
2003                         clearopt = pfctl_lookup_option(optarg, clearopt_list);
2004                         if (clearopt == NULL) {
2005                                 warnx("Unknown flush modifier '%s'", optarg);
2006                                 usage();
2007                         }
2008                         mode = O_RDWR;
2009                         break;
2010                 case 'i':
2011                         ifaceopt = optarg;
2012                         break;
2013                 case 'k':
2014                         if (state_killers >= 2) {
2015                                 warnx("can only specify -k twice");
2016                                 usage();
2017                                 /* NOTREACHED */
2018                         }
2019                         state_kill[state_killers++] = optarg;
2020                         mode = O_RDWR;
2021                         break;
2022                 case 'K':
2023                         if (src_node_killers >= 2) {
2024                                 warnx("can only specify -K twice");
2025                                 usage();
2026                                 /* NOTREACHED */
2027                         }
2028                         src_node_kill[src_node_killers++] = optarg;
2029                         mode = O_RDWR;
2030                         break;
2031                 case 'm':
2032                         opts |= PF_OPT_MERGE;
2033                         break;
2034                 case 'n':
2035                         opts |= PF_OPT_NOACTION;
2036                         break;
2037                 case 'N':
2038                         loadopt |= PFCTL_FLAG_NAT;
2039                         break;
2040                 case 'r':
2041                         opts |= PF_OPT_USEDNS;
2042                         break;
2043                 case 'f':
2044                         rulesopt = optarg;
2045                         mode = O_RDWR;
2046                         break;
2047                 case 'g':
2048                         opts |= PF_OPT_DEBUG;
2049                         break;
2050                 case 'A':
2051                         loadopt |= PFCTL_FLAG_ALTQ;
2052                         break;
2053                 case 'R':
2054                         loadopt |= PFCTL_FLAG_FILTER;
2055                         break;
2056                 case 'o':
2057                         if (optarg) {
2058                                 optiopt = pfctl_lookup_option(optarg,
2059                                     optiopt_list);
2060                                         if (optiopt == NULL) {
2061                                         warnx("Unknown optimization '%s'",
2062                                             optarg);
2063                                         usage();
2064                                 }
2065                         }
2066                         if (opts & PF_OPT_OPTIMIZE) {
2067                                 if (optiopt != NULL) {
2068                                         warnx("Cannot specify -o multiple times"
2069                                             "with optimizer level");
2070                                         usage();
2071                                 }
2072                                 optimize |= PF_OPTIMIZE_PROFILE;
2073                         }
2074                         optimize |= PF_OPTIMIZE_BASIC;
2075                         opts |= PF_OPT_OPTIMIZE;
2076                         break;
2077                 case 'O':
2078                         loadopt |= PFCTL_FLAG_OPTION;
2079                         break;
2080                 case 'p':
2081                         pf_device = optarg;
2082                         break;
2083                 case 's':
2084                         showopt = pfctl_lookup_option(optarg, showopt_list);
2085                         if (showopt == NULL) {
2086                                 warnx("Unknown show modifier '%s'", optarg);
2087                                 usage();
2088                         }
2089                         break;
2090                 case 't':
2091                         tableopt = optarg;
2092                         break;
2093                 case 'T':
2094                         tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list);
2095                         if (tblcmdopt == NULL) {
2096                                 warnx("Unknown table command '%s'", optarg);
2097                                 usage();
2098                         }
2099                         break;
2100                 case 'v':
2101                         if (opts & PF_OPT_VERBOSE)
2102                                 opts |= PF_OPT_VERBOSE2;
2103                         opts |= PF_OPT_VERBOSE;
2104                         break;
2105                 case 'x':
2106                         debugopt = pfctl_lookup_option(optarg, debugopt_list);
2107                         if (debugopt == NULL) {
2108                                 warnx("Unknown debug level '%s'", optarg);
2109                                 usage();
2110                         }
2111                         mode = O_RDWR;
2112                         break;
2113                 case 'z':
2114                         opts |= PF_OPT_CLRRULECTRS;
2115                         mode = O_RDWR;
2116                         break;
2117                 case 'h':
2118                         /* FALLTHROUGH */
2119                 default:
2120                         usage();
2121                         /* NOTREACHED */
2122                 }
2123         }
2124
2125         if (tblcmdopt != NULL) {
2126                 argc -= optind;
2127                 argv += optind;
2128                 ch = *tblcmdopt;
2129                 if (ch == 'l') {
2130                         loadopt |= PFCTL_FLAG_TABLE;
2131                         tblcmdopt = NULL;
2132                 } else
2133                         mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY;
2134         } else if (argc != optind) {
2135                 warnx("unknown command line argument: %s ...", argv[optind]);
2136                 usage();
2137                 /* NOTREACHED */
2138         }
2139         if (loadopt == 0)
2140                 loadopt = ~0;
2141
2142         if ((path = calloc(1, MAXPATHLEN)) == NULL)
2143                 errx(1, "pfctl: calloc");
2144         memset(anchorname, 0, sizeof(anchorname));
2145         if (anchoropt != NULL) {
2146                 int len = strlen(anchoropt);
2147
2148                 if (anchoropt[len - 1] == '*') {
2149                         if (len >= 2 && anchoropt[len - 2] == '/')
2150                                 anchoropt[len - 2] = '\0';
2151                         else
2152                                 anchoropt[len - 1] = '\0';
2153                         opts |= PF_OPT_RECURSE;
2154                 }
2155                 if (strlcpy(anchorname, anchoropt,
2156                     sizeof(anchorname)) >= sizeof(anchorname))
2157                         errx(1, "anchor name '%s' too long",
2158                             anchoropt);
2159                 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE;
2160         }
2161
2162         if ((opts & PF_OPT_NOACTION) == 0) {
2163                 dev = open(pf_device, mode);
2164                 if (dev == -1)
2165                         err(1, "%s", pf_device);
2166                 altqsupport = pfctl_test_altqsupport(dev, opts);
2167         } else {
2168                 dev = open(pf_device, O_RDONLY);
2169                 if (dev >= 0)
2170                         opts |= PF_OPT_DUMMYACTION;
2171                 /* turn off options */
2172                 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
2173                 clearopt = showopt = debugopt = NULL;
2174 #if defined(__FreeBSD__) && !defined(ENABLE_ALTQ)
2175                 altqsupport = 0;
2176 #else
2177                 altqsupport = 1;
2178 #endif
2179         }
2180
2181         if (opts & PF_OPT_DISABLE)
2182                 if (pfctl_disable(dev, opts))
2183                         error = 1;
2184
2185         if (showopt != NULL) {
2186                 switch (*showopt) {
2187                 case 'A':
2188                         pfctl_show_anchors(dev, opts, anchorname);
2189                         break;
2190                 case 'r':
2191                         pfctl_load_fingerprints(dev, opts);
2192                         pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
2193                             anchorname, 0);
2194                         break;
2195                 case 'l':
2196                         pfctl_load_fingerprints(dev, opts);
2197                         pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
2198                             anchorname, 0);
2199                         break;
2200                 case 'n':
2201                         pfctl_load_fingerprints(dev, opts);
2202                         pfctl_show_nat(dev, opts, anchorname);
2203                         break;
2204                 case 'q':
2205                         pfctl_show_altq(dev, ifaceopt, opts,
2206                             opts & PF_OPT_VERBOSE2);
2207                         break;
2208                 case 's':
2209                         pfctl_show_states(dev, ifaceopt, opts);
2210                         break;
2211                 case 'S':
2212                         pfctl_show_src_nodes(dev, opts);
2213                         break;
2214                 case 'i':
2215                         pfctl_show_status(dev, opts);
2216                         break;
2217                 case 't':
2218                         pfctl_show_timeouts(dev, opts);
2219                         break;
2220                 case 'm':
2221                         pfctl_show_limits(dev, opts);
2222                         break;
2223                 case 'a':
2224                         opts |= PF_OPT_SHOWALL;
2225                         pfctl_load_fingerprints(dev, opts);
2226
2227                         pfctl_show_nat(dev, opts, anchorname);
2228                         pfctl_show_rules(dev, path, opts, 0, anchorname, 0);
2229                         pfctl_show_altq(dev, ifaceopt, opts, 0);
2230                         pfctl_show_states(dev, ifaceopt, opts);
2231                         pfctl_show_src_nodes(dev, opts);
2232                         pfctl_show_status(dev, opts);
2233                         pfctl_show_rules(dev, path, opts, 1, anchorname, 0);
2234                         pfctl_show_timeouts(dev, opts);
2235                         pfctl_show_limits(dev, opts);
2236                         pfctl_show_tables(anchorname, opts);
2237                         pfctl_show_fingerprints(opts);
2238                         break;
2239                 case 'T':
2240                         pfctl_show_tables(anchorname, opts);
2241                         break;
2242                 case 'o':
2243                         pfctl_load_fingerprints(dev, opts);
2244                         pfctl_show_fingerprints(opts);
2245                         break;
2246                 case 'I':
2247                         pfctl_show_ifaces(ifaceopt, opts);
2248                         break;
2249                 }
2250         }
2251
2252         if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL)
2253                 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
2254                     anchorname, 0);
2255
2256         if (clearopt != NULL) {
2257                 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
2258                         errx(1, "anchor names beginning with '_' cannot "
2259                             "be modified from the command line");
2260
2261                 switch (*clearopt) {
2262                 case 'r':
2263                         pfctl_clear_rules(dev, opts, anchorname);
2264                         break;
2265                 case 'n':
2266                         pfctl_clear_nat(dev, opts, anchorname);
2267                         break;
2268                 case 'q':
2269                         pfctl_clear_altq(dev, opts);
2270                         break;
2271                 case 's':
2272                         pfctl_clear_states(dev, ifaceopt, opts);
2273                         break;
2274                 case 'S':
2275                         pfctl_clear_src_nodes(dev, opts);
2276                         break;
2277                 case 'i':
2278                         pfctl_clear_stats(dev, opts);
2279                         break;
2280                 case 'a':
2281                         pfctl_clear_rules(dev, opts, anchorname);
2282                         pfctl_clear_nat(dev, opts, anchorname);
2283                         pfctl_clear_tables(anchorname, opts);
2284                         if (!*anchorname) {
2285                                 pfctl_clear_altq(dev, opts);
2286                                 pfctl_clear_states(dev, ifaceopt, opts);
2287                                 pfctl_clear_src_nodes(dev, opts);
2288                                 pfctl_clear_stats(dev, opts);
2289                                 pfctl_clear_fingerprints(dev, opts);
2290                                 pfctl_clear_interface_flags(dev, opts);
2291                         }
2292                         break;
2293                 case 'o':
2294                         pfctl_clear_fingerprints(dev, opts);
2295                         break;
2296                 case 'T':
2297                         pfctl_clear_tables(anchorname, opts);
2298                         break;
2299                 }
2300         }
2301         if (state_killers)
2302                 pfctl_kill_states(dev, ifaceopt, opts);
2303
2304         if (src_node_killers)
2305                 pfctl_kill_src_nodes(dev, ifaceopt, opts);
2306
2307         if (tblcmdopt != NULL) {
2308                 error = pfctl_command_tables(argc, argv, tableopt,
2309                     tblcmdopt, rulesopt, anchorname, opts);
2310                 rulesopt = NULL;
2311         }
2312         if (optiopt != NULL) {
2313                 switch (*optiopt) {
2314                 case 'n':
2315                         optimize = 0;
2316                         break;
2317                 case 'b':
2318                         optimize |= PF_OPTIMIZE_BASIC;
2319                         break;
2320                 case 'o':
2321                 case 'p':
2322                         optimize |= PF_OPTIMIZE_PROFILE;
2323                         break;
2324                 }
2325         }
2326
2327         if (rulesopt != NULL) {
2328                 if (strcmp(rulesopt, "-") == 0) {
2329                         fin = stdin;
2330                         rulesopt = "stdin";
2331                 } else {
2332                         if ((fin = pfctl_fopen(rulesopt, "r")) == NULL)
2333                                 err(1, "%s", rulesopt);
2334                 }
2335         }
2336         if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) &&
2337             !anchorname[0])
2338                 if (pfctl_clear_interface_flags(dev, opts | PF_OPT_QUIET))
2339                         error = 1;
2340
2341         if (rulesopt != NULL && !(opts & (PF_OPT_MERGE|PF_OPT_NOACTION)) &&
2342             !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
2343                 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
2344                         error = 1;
2345
2346         if (rulesopt != NULL) {
2347                 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
2348                         errx(1, "anchor names beginning with '_' cannot "
2349                             "be modified from the command line");
2350                 if (pfctl_rules(dev, rulesopt, fin, opts, optimize,
2351                     anchorname, NULL))
2352                         error = 1;
2353                 else if (!(opts & PF_OPT_NOACTION) &&
2354                     (loadopt & PFCTL_FLAG_TABLE))
2355                         warn_namespace_collision(NULL);
2356         }
2357
2358         if (opts & PF_OPT_ENABLE)
2359                 if (pfctl_enable(dev, opts))
2360                         error = 1;
2361
2362         if (debugopt != NULL) {
2363                 switch (*debugopt) {
2364                 case 'n':
2365                         pfctl_debug(dev, PF_DEBUG_NONE, opts);
2366                         break;
2367                 case 'u':
2368                         pfctl_debug(dev, PF_DEBUG_URGENT, opts);
2369                         break;
2370                 case 'm':
2371                         pfctl_debug(dev, PF_DEBUG_MISC, opts);
2372                         break;
2373                 case 'l':
2374                         pfctl_debug(dev, PF_DEBUG_NOISY, opts);
2375                         break;
2376                 }
2377         }
2378
2379         exit(error);
2380 }