usr.sbin/pfctl/pfctl_table.c

   1 /*      $OpenBSD: pfctl_table.c,v 1.59 2004/03/15 15:25:44 dhartmei Exp $ */
   2 /*      $DragonFly: src/usr.sbin/pfctl/pfctl_table.c,v 1.1 2004/09/21 21:25:28 joerg Exp $ */
   3
   4 /*
   5  * Copyright (c) 2002 Cedric Berger
   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/types.h>
  35 #include <sys/ioctl.h>
  36 #include <sys/socket.h>
  37
  38 #include <net/if.h>
  39 #include <net/pf/pfvar.h>
  40 #include <arpa/inet.h>
  41
  42 #include <ctype.h>
  43 #include <err.h>
  44 #include <errno.h>
  45 #include <netdb.h>
  46 #include <stdarg.h>
  47 #include <stdio.h>
  48 #include <stdlib.h>
  49 #include <string.h>
  50 #include <time.h>
  51
  52 #include "pfctl_parser.h"
  53 #include "pfctl.h"
  54
  55 extern void     usage(void);
  56 static int      pfctl_table(int, char *[], char *, const char *, char *,
  57                     const char *, const char *, int);
  58 static void     print_table(const struct pfr_table *, int, int);
  59 static void     print_tstats(const struct pfr_tstats *, int);
  60 static int      load_addr(struct pfr_buffer *, int, char *[], char *, int);
  61 static void     print_addrx(const struct pfr_addr *, const struct pfr_addr *,
  62                             int);
  63 static void     print_astats(const struct pfr_astats *, int);
  64 static void     radix_perror(void);
  65 static void     xprintf(int, const char *, ...);
  66 static void     print_iface(const struct pfi_if *, int);
  67 static void     oprintf(int, int, const char *, int *, int);
  68
  69 static const char       *stats_text[PFR_DIR_MAX][PFR_OP_TABLE_MAX] = {
  70         { "In/Block:",  "In/Pass:",     "In/XPass:" },
  71         { "Out/Block:", "Out/Pass:",    "Out/XPass:" }
  72 };
  73
  74 static const char       *istats_text[2][2][2] = {
  75         { { "In4/Pass:", "In4/Block:" }, { "Out4/Pass:", "Out4/Block:" } },
  76         { { "In6/Pass:", "In6/Block:" }, { "Out6/Pass:", "Out6/Block:" } }
  77 };
  78
  79 #define RVTEST(fct) do {                                \
  80                 if ((!(opts & PF_OPT_NOACTION) ||       \
  81                     (opts & PF_OPT_DUMMYACTION)) &&     \
  82                     (fct)) {                            \
  83                         radix_perror();                 \
  84                         goto _error;                    \
  85                 }                                       \
  86         } while (0)
  87
  88 #define CREATE_TABLE do {                                               \
  89                 table.pfrt_flags |= PFR_TFLAG_PERSIST;                  \
  90                 RVTEST(pfr_add_tables(&table, 1, &nadd, flags));        \
  91                 if (nadd) {                                             \
  92                         warn_namespace_collision(table.pfrt_name);      \
  93                         xprintf(opts, "%d table created", nadd);        \
  94                         if (opts & PF_OPT_NOACTION)                     \
  95                                 return (0);                             \
  96                 }                                                       \
  97                 table.pfrt_flags &= ~PFR_TFLAG_PERSIST;                 \
  98         } while(0)
  99
 100 int
 101 pfctl_clear_tables(const char *anchor, const char *ruleset, int opts)
 102 {
 103         return pfctl_table(0, NULL, NULL, "-F", NULL, anchor, ruleset, opts);
 104 }
 105
 106 int
 107 pfctl_show_tables(const char *anchor, const char *ruleset, int opts)
 108 {
 109         return pfctl_table(0, NULL, NULL, "-s", NULL, anchor, ruleset, opts);
 110 }
 111
 112 int
 113 pfctl_command_tables(int argc, char *argv[], char *tname,
 114     const char *command, char *file, const char *anchor, const char *ruleset,
 115     int opts)
 116 {
 117         if (tname == NULL || command == NULL)
 118                 usage();
 119         return pfctl_table(argc, argv, tname, command, file, anchor, ruleset,
 120             opts);
 121 }
 122
 123 int
 124 pfctl_table(int argc, char *argv[], char *tname, const char *command,
 125     char *file, const char *anchor, const char *ruleset, int opts)
 126 {
 127         struct pfr_table         table;
 128         struct pfr_buffer        b, b2;
 129         const struct pfr_addr   *a, *a2;
 130         int                      nadd = 0, ndel = 0, nchange = 0, nzero = 0;
 131         int                      rv = 0, flags = 0, nmatch = 0;
 132         const void              *p;
 133
 134         if (command == NULL)
 135                 usage();
 136         if (opts & PF_OPT_NOACTION)
 137                 flags |= PFR_FLAG_DUMMY;
 138
 139         bzero(&b, sizeof(b));
 140         bzero(&b2, sizeof(b2));
 141         bzero(&table, sizeof(table));
 142         if (tname != NULL) {
 143                 if (strlen(tname) >= PF_TABLE_NAME_SIZE)
 144                         usage();
 145                 if (strlcpy(table.pfrt_name, tname,
 146                     sizeof(table.pfrt_name)) >= sizeof(table.pfrt_name))
 147                         errx(1, "pfctl_table: strlcpy");
 148         }
 149         if (strlcpy(table.pfrt_anchor, anchor,
 150             sizeof(table.pfrt_anchor)) >= sizeof(table.pfrt_anchor) ||
 151             strlcpy(table.pfrt_ruleset, ruleset,
 152             sizeof(table.pfrt_ruleset)) >= sizeof(table.pfrt_ruleset))
 153                 errx(1, "pfctl_table: strlcpy");
 154
 155         if (!strcmp(command, "-F")) {
 156                 if (argc || file != NULL)
 157                         usage();
 158                 RVTEST(pfr_clr_tables(&table, &ndel, flags));
 159                 xprintf(opts, "%d tables deleted", ndel);
 160         } else if (!strcmp(command, "-s")) {
 161                 b.pfrb_type = (opts & PF_OPT_VERBOSE2) ?
 162                     PFRB_TSTATS : PFRB_TABLES;
 163                 if (argc || file != NULL)
 164                         usage();
 165                 for (;;) {
 166                         pfr_buf_grow(&b, b.pfrb_size);
 167                         b.pfrb_size = b.pfrb_msize;
 168                         if (opts & PF_OPT_VERBOSE2)
 169                                 RVTEST(pfr_get_tstats(&table,
 170                                     b.pfrb_caddr, &b.pfrb_size, flags));
 171                         else
 172                                 RVTEST(pfr_get_tables(&table,
 173                                     b.pfrb_caddr, &b.pfrb_size, flags));
 174                         if (b.pfrb_size <= b.pfrb_msize)
 175                                 break;
 176                 }
 177
 178                 if (opts & PF_OPT_SHOWALL && b.pfrb_size > 0)
 179                         pfctl_print_title("TABLES:");
 180
 181                 PFRB_FOREACH(p, &b)
 182                         if (opts & PF_OPT_VERBOSE2)
 183                                 print_tstats(p, opts & PF_OPT_DEBUG);
 184                         else
 185                                 print_table(p, opts & PF_OPT_VERBOSE,
 186                                     opts & PF_OPT_DEBUG);
 187         } else if (!strcmp(command, "kill")) {
 188                 if (argc || file != NULL)
 189                         usage();
 190                 RVTEST(pfr_del_tables(&table, 1, &ndel, flags));
 191                 xprintf(opts, "%d table deleted", ndel);
 192         } else if (!strcmp(command, "flush")) {
 193                 if (argc || file != NULL)
 194                         usage();
 195                 RVTEST(pfr_clr_addrs(&table, &ndel, flags));
 196                 xprintf(opts, "%d addresses deleted", ndel);
 197         } else if (!strcmp(command, "add")) {
 198                 b.pfrb_type = PFRB_ADDRS;
 199                 if (load_addr(&b, argc, argv, file, 0))
 200                         goto _error;
 201                 CREATE_TABLE;
 202                 if (opts & PF_OPT_VERBOSE)
 203                         flags |= PFR_FLAG_FEEDBACK;
 204                 RVTEST(pfr_add_addrs(&table, b.pfrb_caddr, b.pfrb_size,
 205                     &nadd, flags));
 206                 xprintf(opts, "%d/%d addresses added", nadd, b.pfrb_size);
 207                 if (opts & PF_OPT_VERBOSE)
 208                         PFRB_FOREACH(a, &b)
 209                                 if ((opts & PF_OPT_VERBOSE2) || a->pfra_fback)
 210                                         print_addrx(a, NULL,
 211                                             opts & PF_OPT_USEDNS);
 212         } else if (!strcmp(command, "delete")) {
 213                 b.pfrb_type = PFRB_ADDRS;
 214                 if (load_addr(&b, argc, argv, file, 0))
 215                         goto _error;
 216                 if (opts & PF_OPT_VERBOSE)
 217                         flags |= PFR_FLAG_FEEDBACK;
 218                 RVTEST(pfr_del_addrs(&table, b.pfrb_caddr, b.pfrb_size,
 219                     &ndel, flags));
 220                 xprintf(opts, "%d/%d addresses deleted", ndel, b.pfrb_size);
 221                 if (opts & PF_OPT_VERBOSE)
 222                         PFRB_FOREACH(a, &b)
 223                                 if ((opts & PF_OPT_VERBOSE2) || a->pfra_fback)
 224                                         print_addrx(a, NULL,
 225                                             opts & PF_OPT_USEDNS);
 226         } else if (!strcmp(command, "replace")) {
 227                 b.pfrb_type = PFRB_ADDRS;
 228                 if (load_addr(&b, argc, argv, file, 0))
 229                         goto _error;
 230                 CREATE_TABLE;
 231                 if (opts & PF_OPT_VERBOSE)
 232                         flags |= PFR_FLAG_FEEDBACK;
 233                 for (;;) {
 234                         int sz2 = b.pfrb_msize;
 235
 236                         RVTEST(pfr_set_addrs(&table, b.pfrb_caddr, b.pfrb_size,
 237                             &sz2, &nadd, &ndel, &nchange, flags));
 238                         if (sz2 <= b.pfrb_msize) {
 239                                 b.pfrb_size = sz2;
 240                                 break;
 241                         } else
 242                                 pfr_buf_grow(&b, sz2);
 243                 }
 244                 if (nadd)
 245                         xprintf(opts, "%d addresses added", nadd);
 246                 if (ndel)
 247                         xprintf(opts, "%d addresses deleted", ndel);
 248                 if (nchange)
 249                         xprintf(opts, "%d addresses changed", nchange);
 250                 if (!nadd && !ndel && !nchange)
 251                         xprintf(opts, "no changes");
 252                 if (opts & PF_OPT_VERBOSE)
 253                         PFRB_FOREACH(a, &b)
 254                                 if ((opts & PF_OPT_VERBOSE2) || a->pfra_fback)
 255                                         print_addrx(a, NULL,
 256                                             opts & PF_OPT_USEDNS);
 257         } else if (!strcmp(command, "show")) {
 258                 b.pfrb_type = (opts & PF_OPT_VERBOSE) ?
 259                         PFRB_ASTATS : PFRB_ADDRS;
 260                 if (argc || file != NULL)
 261                         usage();
 262                 for (;;) {
 263                         pfr_buf_grow(&b, b.pfrb_size);
 264                         b.pfrb_size = b.pfrb_msize;
 265                         if (opts & PF_OPT_VERBOSE)
 266                                 RVTEST(pfr_get_astats(&table, b.pfrb_caddr,
 267                                     &b.pfrb_size, flags));
 268                         else
 269                                 RVTEST(pfr_get_addrs(&table, b.pfrb_caddr,
 270                                     &b.pfrb_size, flags));
 271                         if (b.pfrb_size <= b.pfrb_msize)
 272                                 break;
 273                 }
 274                 PFRB_FOREACH(p, &b)
 275                         if (opts & PF_OPT_VERBOSE)
 276                                 print_astats(p, opts & PF_OPT_USEDNS);
 277                         else
 278                                 print_addrx(p, NULL, opts & PF_OPT_USEDNS);
 279         } else if (!strcmp(command, "test")) {
 280                 b.pfrb_type = PFRB_ADDRS;
 281                 b2.pfrb_type = PFRB_ADDRS;
 282
 283                 if (load_addr(&b, argc, argv, file, 1))
 284                         goto _error;
 285                 if (opts & PF_OPT_VERBOSE2) {
 286                         flags |= PFR_FLAG_REPLACE;
 287                         PFRB_FOREACH(a, &b)
 288                                 if (pfr_buf_add(&b2, a))
 289                                         err(1, "duplicate buffer");
 290                 }
 291                 RVTEST(pfr_tst_addrs(&table, b.pfrb_caddr, b.pfrb_size,
 292                     &nmatch, flags));
 293                 xprintf(opts, "%d/%d addresses match", nmatch, b.pfrb_size);
 294                 if (opts & PF_OPT_VERBOSE && !(opts & PF_OPT_VERBOSE2))
 295                         PFRB_FOREACH(a, &b)
 296                                 if (a->pfra_fback == PFR_FB_MATCH)
 297                                         print_addrx(a, NULL,
 298                                             opts & PF_OPT_USEDNS);
 299                 if (opts & PF_OPT_VERBOSE2) {
 300                         a2 = NULL;
 301                         PFRB_FOREACH(a, &b) {
 302                                 a2 = pfr_buf_next(&b2, a2);
 303                                 print_addrx(a2, a, opts & PF_OPT_USEDNS);
 304                         }
 305                 }
 306                 if (nmatch < b.pfrb_size)
 307                         rv = 2;
 308         } else if (!strcmp(command, "zero")) {
 309                 if (argc || file != NULL)
 310                         usage();
 311                 flags |= PFR_FLAG_ADDRSTOO;
 312                 RVTEST(pfr_clr_tstats(&table, 1, &nzero, flags));
 313                 xprintf(opts, "%d table/stats cleared", nzero);
 314         } else
 315                 warnx("pfctl_table: unknown command '%s'", command);
 316         goto _cleanup;
 317
 318 _error:
 319         rv = -1;
 320 _cleanup:
 321         pfr_buf_clear(&b);
 322         pfr_buf_clear(&b2);
 323         return (rv);
 324 }
 325
 326 void
 327 print_table(const struct pfr_table *ta, int verbose, int debug)
 328 {
 329         if (!debug && !(ta->pfrt_flags & PFR_TFLAG_ACTIVE))
 330                 return;
 331         if (verbose) {
 332                 printf("%c%c%c%c%c%c\t%s",
 333                     (ta->pfrt_flags & PFR_TFLAG_CONST) ? 'c' : '-',
 334                     (ta->pfrt_flags & PFR_TFLAG_PERSIST) ? 'p' : '-',
 335                     (ta->pfrt_flags & PFR_TFLAG_ACTIVE) ? 'a' : '-',
 336                     (ta->pfrt_flags & PFR_TFLAG_INACTIVE) ? 'i' : '-',
 337                     (ta->pfrt_flags & PFR_TFLAG_REFERENCED) ? 'r' : '-',
 338                     (ta->pfrt_flags & PFR_TFLAG_REFDANCHOR) ? 'h' : '-',
 339                     ta->pfrt_name);
 340                 if (ta->pfrt_anchor[0])
 341                         printf("\t%s", ta->pfrt_anchor);
 342                 if (ta->pfrt_ruleset[0])
 343                         printf(":%s", ta->pfrt_ruleset);
 344                 puts("");
 345         } else
 346                 puts(ta->pfrt_name);
 347 }
 348
 349 void
 350 print_tstats(const struct pfr_tstats *ts, int debug)
 351 {
 352         time_t  rtime = ts->pfrts_tzero;
 353         int     dir, op;
 354
 355         if (!debug && !(ts->pfrts_flags & PFR_TFLAG_ACTIVE))
 356                 return;
 357         print_table(&ts->pfrts_t, 1, debug);
 358         printf("\tAddresses:   %d\n", ts->pfrts_cnt);
 359         printf("\tCleared:     %s", ctime(&rtime));
 360         printf("\tReferences:  [ Anchors: %-18d Rules: %-18d ]\n",
 361             ts->pfrts_refcnt[PFR_REFCNT_ANCHOR],
 362             ts->pfrts_refcnt[PFR_REFCNT_RULE]);
 363         printf("\tEvaluations: [ NoMatch: %-18llu Match: %-18llu ]\n",
 364             (unsigned long long)ts->pfrts_nomatch,
 365             (unsigned long long)ts->pfrts_match);
 366         for (dir = 0; dir < PFR_DIR_MAX; dir++)
 367                 for (op = 0; op < PFR_OP_TABLE_MAX; op++)
 368                         printf("\t%-12s [ Packets: %-18llu Bytes: %-18llu ]\n",
 369                             stats_text[dir][op],
 370                             (unsigned long long)ts->pfrts_packets[dir][op],
 371                             (unsigned long long)ts->pfrts_bytes[dir][op]);
 372 }
 373
 374 int
 375 load_addr(struct pfr_buffer *b, int argc, char *argv[], char *file,
 376     int nonetwork)
 377 {
 378         while (argc--)
 379                 if (append_addr(b, *argv++, nonetwork)) {
 380                         if (errno)
 381                                 warn("cannot decode %s", argv[-1]);
 382                         return (-1);
 383                 }
 384         if (pfr_buf_load(b, file, nonetwork, append_addr)) {
 385                 warn("cannot load %s", file);
 386                 return (-1);
 387         }
 388         return (0);
 389 }
 390
 391 void
 392 print_addrx(const struct pfr_addr *ad, const struct pfr_addr *rad, int dns)
 393 {
 394         char            ch, buf[256] = "{error}";
 395         char            fb[] = { ' ', 'M', 'A', 'D', 'C', 'Z', 'X', ' ', 'Y' };
 396         unsigned int    fback, hostnet;
 397
 398         fback = (rad != NULL) ? rad->pfra_fback : ad->pfra_fback;
 399         ch = (fback < sizeof(fb)/sizeof(*fb)) ? fb[fback] : '?';
 400         hostnet = (ad->pfra_af == AF_INET6) ? 128 : 32;
 401         inet_ntop(ad->pfra_af, &ad->pfra_u, buf, sizeof(buf));
 402         printf("%c %c%s", ch, (ad->pfra_not?'!':' '), buf);
 403         if (ad->pfra_net < hostnet)
 404                 printf("/%d", ad->pfra_net);
 405         if (rad != NULL && fback != PFR_FB_NONE) {
 406                 if (strlcpy(buf, "{error}", sizeof(buf)) >= sizeof(buf))
 407                         errx(1, "print_addrx: strlcpy");
 408                 inet_ntop(rad->pfra_af, &rad->pfra_u, buf, sizeof(buf));
 409                 printf("\t%c%s", (rad->pfra_not?'!':' '), buf);
 410                 if (rad->pfra_net < hostnet)
 411                         printf("/%d", rad->pfra_net);
 412         }
 413         if (rad != NULL && fback == PFR_FB_NONE)
 414                 printf("\t nomatch");
 415         if (dns && ad->pfra_net == hostnet) {
 416                 char hostname[NI_MAXHOST];
 417                 union sockaddr_union sa;
 418
 419                 strlcpy(hostname, "?", sizeof(hostname));
 420                 bzero(&sa, sizeof(sa));
 421                 sa.sa.sa_family = ad->pfra_af;
 422                 if (sa.sa.sa_family == AF_INET) {
 423                         sa.sa.sa_len = sizeof(sa.sin);
 424                         sa.sin.sin_addr = ad->pfra_ip4addr;
 425                 } else {
 426                         sa.sa.sa_len = sizeof(sa.sin6);
 427                         sa.sin6.sin6_addr = ad->pfra_ip6addr;
 428                 }
 429                 if (getnameinfo(&sa.sa, sa.sa.sa_len, hostname, sizeof(hostname),
 430                     NULL, 0, NI_NAMEREQD) == 0)
 431                         printf("\t(%s)", hostname);
 432         }
 433         printf("\n");
 434 }
 435
 436 void
 437 print_astats(const struct pfr_astats *as, int dns)
 438 {
 439         time_t  rtime = as->pfras_tzero;
 440         int     dir, op;
 441
 442         print_addrx(&as->pfras_a, NULL, dns);
 443         printf("\tCleared:     %s", ctime(&rtime));
 444         for (dir = 0; dir < PFR_DIR_MAX; dir++)
 445                 for (op = 0; op < PFR_OP_ADDR_MAX; op++)
 446                         printf("\t%-12s [ Packets: %-18llu Bytes: %-18llu ]\n",
 447                             stats_text[dir][op],
 448                             (unsigned long long)as->pfras_packets[dir][op],
 449                             (unsigned long long)as->pfras_bytes[dir][op]);
 450 }
 451
 452 void
 453 radix_perror(void)
 454 {
 455         fprintf(stderr, "%s: %s.\n", getprogname(), pfr_strerror(errno));
 456 }
 457
 458 int
 459 pfctl_define_table(char *name, int flags, int addrs, const char *anchor,
 460     const char *ruleset, struct pfr_buffer *ab, u_int32_t ticket)
 461 {
 462         struct pfr_table tbl;
 463
 464         bzero(&tbl, sizeof(tbl));
 465         if (strlcpy(tbl.pfrt_name, name, sizeof(tbl.pfrt_name)) >=
 466             sizeof(tbl.pfrt_name) || strlcpy(tbl.pfrt_anchor, anchor,
 467             sizeof(tbl.pfrt_anchor)) >= sizeof(tbl.pfrt_anchor) ||
 468             strlcpy(tbl.pfrt_ruleset, ruleset, sizeof(tbl.pfrt_ruleset)) >=
 469             sizeof(tbl.pfrt_ruleset))
 470                 errx(1, "pfctl_define_table: strlcpy");
 471         tbl.pfrt_flags = flags;
 472
 473         return pfr_ina_define(&tbl, ab->pfrb_caddr, ab->pfrb_size, NULL,
 474             NULL, ticket, addrs ? PFR_FLAG_ADDRSTOO : 0);
 475 }
 476
 477 void
 478 warn_namespace_collision(const char *filter)
 479 {
 480         struct pfr_buffer b;
 481         const struct pfr_table *t;
 482         const char *name = NULL, *lastcoll = NULL;
 483         int coll = 0;
 484
 485         bzero(&b, sizeof(b));
 486         b.pfrb_type = PFRB_TABLES;
 487         for (;;) {
 488                 pfr_buf_grow(&b, b.pfrb_size);
 489                 b.pfrb_size = b.pfrb_msize;
 490                 if (pfr_get_tables(NULL, b.pfrb_caddr,
 491                     &b.pfrb_size, PFR_FLAG_ALLRSETS))
 492                         err(1, "pfr_get_tables");
 493                 if (b.pfrb_size <= b.pfrb_msize)
 494                         break;
 495         }
 496         PFRB_FOREACH(t, &b) {
 497                 if (!(t->pfrt_flags & PFR_TFLAG_ACTIVE))
 498                         continue;
 499                 if (filter != NULL && strcmp(filter, t->pfrt_name))
 500                         continue;
 501                 if (!t->pfrt_anchor[0])
 502                         name = t->pfrt_name;
 503                 else if (name != NULL && !strcmp(name, t->pfrt_name)) {
 504                         coll++;
 505                         lastcoll = name;
 506                         name = NULL;
 507                 }
 508         }
 509         if (coll == 1)
 510                 warnx("warning: namespace collision with <%s> global table.",
 511                     lastcoll);
 512         else if (coll > 1)
 513                 warnx("warning: namespace collisions with %d global tables.",
 514                     coll);
 515         pfr_buf_clear(&b);
 516 }
 517
 518 void
 519 xprintf(int opts, const char *fmt, ...)
 520 {
 521         va_list args;
 522
 523         if (opts & PF_OPT_QUIET)
 524                 return;
 525
 526         va_start(args, fmt);
 527         vfprintf(stderr, fmt, args);
 528         va_end(args);
 529
 530         if (opts & PF_OPT_DUMMYACTION)
 531                 fprintf(stderr, " (dummy).\n");
 532         else if (opts & PF_OPT_NOACTION)
 533                 fprintf(stderr, " (syntax only).\n");
 534         else
 535                 fprintf(stderr, ".\n");
 536 }
 537
 538
 539 /* interface stuff */
 540
 541 int
 542 pfctl_show_ifaces(const char *filter, int opts)
 543 {
 544         struct pfr_buffer        b;
 545         const struct pfi_if     *p;
 546         int                      i = 0, f = PFI_FLAG_GROUP|PFI_FLAG_INSTANCE;
 547
 548         if (filter != NULL && *filter && !isdigit(filter[strlen(filter)-1]))
 549                 f &= ~PFI_FLAG_INSTANCE;
 550         bzero(&b, sizeof(b));
 551         b.pfrb_type = PFRB_IFACES;
 552         for (;;) {
 553                 pfr_buf_grow(&b, b.pfrb_size);
 554                 b.pfrb_size = b.pfrb_msize;
 555                 if (pfi_get_ifaces(filter, b.pfrb_caddr, &b.pfrb_size, f)) {
 556                         radix_perror();
 557                         return (1);
 558                 }
 559                 if (b.pfrb_size <= b.pfrb_msize)
 560                         break;
 561                 i++;
 562         }
 563         if (opts & PF_OPT_SHOWALL)
 564                 pfctl_print_title("INTERFACES:");
 565         PFRB_FOREACH(p, &b)
 566                 print_iface(p, opts);
 567         return (0);
 568 }
 569
 570 void
 571 print_iface(const struct pfi_if *p, int opts)
 572 {
 573         time_t  tzero = p->pfif_tzero;
 574         int     flags = (opts & PF_OPT_VERBOSE) ? p->pfif_flags : 0;
 575         int     first = 1;
 576         int     i, af, dir, act;
 577
 578         printf("%s", p->pfif_name);
 579         oprintf(flags, PFI_IFLAG_INSTANCE, "instance", &first, 0);
 580         oprintf(flags, PFI_IFLAG_GROUP, "group", &first, 0);
 581         oprintf(flags, PFI_IFLAG_CLONABLE, "clonable", &first, 0);
 582         oprintf(flags, PFI_IFLAG_DYNAMIC, "dynamic", &first, 0);
 583         oprintf(flags, PFI_IFLAG_ATTACHED, "attached", &first, 1);
 584         printf("\n");
 585
 586         if (!(opts & PF_OPT_VERBOSE2))
 587                 return;
 588         printf("\tCleared:     %s", ctime(&tzero));
 589         printf("\tReferences:  [ States:  %-18d Rules: %-18d ]\n",
 590             p->pfif_states, p->pfif_rules);
 591         for (i = 0; i < 8; i++) {
 592                 af = (i>>2) & 1;
 593                 dir = (i>>1) &1;
 594                 act = i & 1;
 595                 printf("\t%-12s [ Packets: %-18llu Bytes: %-18llu ]\n",
 596                     istats_text[af][dir][act],
 597                     (unsigned long long)p->pfif_packets[af][dir][act],
 598                     (unsigned long long)p->pfif_bytes[af][dir][act]);
 599         }
 600 }
 601
 602 void
 603 oprintf(int flags, int flag, const char *s, int *first, int last)
 604 {
 605         if (flags & flag) {
 606                 printf(*first ? "\t(%s" : ", %s", s);
 607                 *first = 0;
 608         }
 609         if (last && !*first)
 610                 printf(")");
 611 }
 612