usr.sbin/pfctl/pfctl_table.c

   1 /*      $OpenBSD: pfctl_table.c,v 1.68 2008/06/21 10:34:08 mcbride Exp $ */
   2
   3 /*
   4  * Copyright (c) 2002 Cedric Berger
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  *    - Redistributions of source code must retain the above copyright
  12  *      notice, this list of conditions and the following disclaimer.
  13  *    - Redistributions in binary form must reproduce the above
  14  *      copyright notice, this list of conditions and the following
  15  *      disclaimer in the documentation and/or other materials provided
  16  *      with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  21  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  22  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  24  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  26  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  28  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  *
  31  */
  32
  33 #include <sys/types.h>
  34 #include <sys/ioctl.h>
  35 #include <sys/socket.h>
  36
  37 #include <net/if.h>
  38 #include <net/pf/pfvar.h>
  39 #include <arpa/inet.h>
  40
  41 #include <ctype.h>
  42 #include <err.h>
  43 #include <errno.h>
  44 #include <netdb.h>
  45 #include <stdarg.h>
  46 #include <stdio.h>
  47 #include <stdlib.h>
  48 #include <string.h>
  49 #include <time.h>
  50
  51 #include "pfctl_parser.h"
  52 #include "pfctl.h"
  53
  54 extern void     usage(void);
  55 static int      pfctl_table(int, char *[], char *, const char *, char *,
  56                     const char *, int);
  57 static void     print_table(const struct pfr_table *, int, int);
  58 static void     print_tstats(const struct pfr_tstats *, int);
  59 static int      load_addr(struct pfr_buffer *, int, char *[], char *, int);
  60 static void     print_addrx(const struct pfr_addr *, const struct pfr_addr *,
  61                             int);
  62 static void     print_astats(const struct pfr_astats *, int);
  63 static void     radix_perror(void);
  64 static void     xprintf(int, const char *, ...) __printflike(2, 3);
  65 static void     print_iface(const struct pfi_kif *, int);
  66
  67 static const char       *stats_text[PFR_DIR_MAX][PFR_OP_TABLE_MAX] = {
  68         { "In/Block:",  "In/Pass:",     "In/XPass:" },
  69         { "Out/Block:", "Out/Pass:",    "Out/XPass:" }
  70 };
  71
  72 static const char       *istats_text[2][2][2] = {
  73         { { "In4/Pass:", "In4/Block:" }, { "Out4/Pass:", "Out4/Block:" } },
  74         { { "In6/Pass:", "In6/Block:" }, { "Out6/Pass:", "Out6/Block:" } }
  75 };
  76
  77 #define RVTEST(fct) do {                                \
  78                 if ((!(opts & PF_OPT_NOACTION) ||       \
  79                     (opts & PF_OPT_DUMMYACTION)) &&     \
  80                     (fct)) {                            \
  81                         radix_perror();                 \
  82                         goto _error;                    \
  83                 }                                       \
  84         } while (0)
  85
  86 #define CREATE_TABLE do {                                               \
  87                 table.pfrt_flags |= PFR_TFLAG_PERSIST;                  \
  88                 if ((!(opts & PF_OPT_NOACTION) ||                       \
  89                     (opts & PF_OPT_DUMMYACTION)) &&                     \
  90                     (pfr_add_tables(&table, 1, &nadd, flags)) &&        \
  91                     (errno != EPERM)) {                                 \
  92                         radix_perror();                                 \
  93                         goto _error;                                    \
  94                 }                                                       \
  95                 if (nadd) {                                             \
  96                         warn_namespace_collision(table.pfrt_name);      \
  97                         xprintf(opts, "%d table created", nadd);        \
  98                         if (opts & PF_OPT_NOACTION)                     \
  99                                 return (0);                             \
 100                 }                                                       \
 101                 table.pfrt_flags &= ~PFR_TFLAG_PERSIST;                 \
 102         } while(0)
 103
 104 int
 105 pfctl_clear_tables(const char *anchor, int opts)
 106 {
 107         return pfctl_table(0, NULL, NULL, "-F", NULL, anchor, opts);
 108 }
 109
 110 int
 111 pfctl_show_tables(const char *anchor, int opts)
 112 {
 113         return pfctl_table(0, NULL, NULL, "-s", NULL, anchor, opts);
 114 }
 115
 116 int
 117 pfctl_command_tables(int argc, char *argv[], char *tname,
 118     const char *command, char *file, const char *anchor, int opts)
 119 {
 120         if (tname == NULL || command == NULL)
 121                 usage();
 122         return pfctl_table(argc, argv, tname, command, file, anchor, opts);
 123 }
 124
 125 int
 126 pfctl_table(int argc, char *argv[], char *tname, const char *command,
 127     char *file, const char *anchor, int opts)
 128 {
 129         struct pfr_table         table;
 130         struct pfr_buffer        b, b2;
 131         const struct pfr_addr   *a, *a2;
 132         int                      nadd = 0, ndel = 0, nchange = 0, nzero = 0;
 133         int                      rv = 0, flags = 0, nmatch = 0;
 134         const void              *p;
 135
 136         if (command == NULL)
 137                 usage();
 138         if (opts & PF_OPT_NOACTION)
 139                 flags |= PFR_FLAG_DUMMY;
 140
 141         bzero(&b, sizeof(b));
 142         bzero(&b2, sizeof(b2));
 143         bzero(&table, sizeof(table));
 144         if (tname != NULL) {
 145                 if (strlen(tname) >= PF_TABLE_NAME_SIZE)
 146                         usage();
 147                 if (strlcpy(table.pfrt_name, tname,
 148                     sizeof(table.pfrt_name)) >= sizeof(table.pfrt_name))
 149                         errx(1, "pfctl_table: strlcpy");
 150         }
 151         if (strlcpy(table.pfrt_anchor, anchor,
 152             sizeof(table.pfrt_anchor)) >= sizeof(table.pfrt_anchor))
 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, "expire")) {
 258                 const char              *errstr;
 259                 u_int                    lifetime;
 260
 261                 b.pfrb_type = PFRB_ASTATS;
 262                 b2.pfrb_type = PFRB_ADDRS;
 263                 if (argc != 1 || file != NULL)
 264                         usage();
 265                 lifetime = strtonum(*argv, 0, UINT_MAX, &errstr);
 266                 if (errstr)
 267                         errx(1, "expiry time: %s", errstr);
 268                 for (;;) {
 269                         pfr_buf_grow(&b, b.pfrb_size);
 270                         b.pfrb_size = b.pfrb_msize;
 271                         RVTEST(pfr_get_astats(&table, b.pfrb_caddr,
 272                             &b.pfrb_size, flags));
 273                         if (b.pfrb_size <= b.pfrb_msize)
 274                                 break;
 275                 }
 276                 PFRB_FOREACH(p, &b) {
 277                         ((struct pfr_astats *)p)->pfras_a.pfra_fback = 0;
 278                         if (time(NULL) - ((struct pfr_astats *)p)->pfras_tzero >
 279                              lifetime)
 280                                 if (pfr_buf_add(&b2,
 281                                     &((struct pfr_astats *)p)->pfras_a))
 282                                         err(1, "duplicate buffer");
 283                 }
 284
 285                 if (opts & PF_OPT_VERBOSE)
 286                         flags |= PFR_FLAG_FEEDBACK;
 287                 RVTEST(pfr_del_addrs(&table, b2.pfrb_caddr, b2.pfrb_size,
 288                     &ndel, flags));
 289                 xprintf(opts, "%d/%d addresses expired", ndel, b2.pfrb_size);
 290                 if (opts & PF_OPT_VERBOSE)
 291                         PFRB_FOREACH(a, &b2)
 292                                 if ((opts & PF_OPT_VERBOSE2) || a->pfra_fback)
 293                                         print_addrx(a, NULL,
 294                                             opts & PF_OPT_USEDNS);
 295         } else if (!strcmp(command, "show")) {
 296                 b.pfrb_type = (opts & PF_OPT_VERBOSE) ?
 297                         PFRB_ASTATS : PFRB_ADDRS;
 298                 if (argc || file != NULL)
 299                         usage();
 300                 for (;;) {
 301                         pfr_buf_grow(&b, b.pfrb_size);
 302                         b.pfrb_size = b.pfrb_msize;
 303                         if (opts & PF_OPT_VERBOSE)
 304                                 RVTEST(pfr_get_astats(&table, b.pfrb_caddr,
 305                                     &b.pfrb_size, flags));
 306                         else
 307                                 RVTEST(pfr_get_addrs(&table, b.pfrb_caddr,
 308                                     &b.pfrb_size, flags));
 309                         if (b.pfrb_size <= b.pfrb_msize)
 310                                 break;
 311                 }
 312                 PFRB_FOREACH(p, &b)
 313                         if (opts & PF_OPT_VERBOSE)
 314                                 print_astats(p, opts & PF_OPT_USEDNS);
 315                         else
 316                                 print_addrx(p, NULL, opts & PF_OPT_USEDNS);
 317         } else if (!strcmp(command, "test")) {
 318                 b.pfrb_type = PFRB_ADDRS;
 319                 b2.pfrb_type = PFRB_ADDRS;
 320
 321                 if (load_addr(&b, argc, argv, file, 1))
 322                         goto _error;
 323                 if (opts & PF_OPT_VERBOSE2) {
 324                         flags |= PFR_FLAG_REPLACE;
 325                         PFRB_FOREACH(a, &b)
 326                                 if (pfr_buf_add(&b2, a))
 327                                         err(1, "duplicate buffer");
 328                 }
 329                 RVTEST(pfr_tst_addrs(&table, b.pfrb_caddr, b.pfrb_size,
 330                     &nmatch, flags));
 331                 xprintf(opts, "%d/%d addresses match", nmatch, b.pfrb_size);
 332                 if ((opts & PF_OPT_VERBOSE) && !(opts & PF_OPT_VERBOSE2))
 333                         PFRB_FOREACH(a, &b)
 334                                 if (a->pfra_fback == PFR_FB_MATCH)
 335                                         print_addrx(a, NULL,
 336                                             opts & PF_OPT_USEDNS);
 337                 if (opts & PF_OPT_VERBOSE2) {
 338                         a2 = NULL;
 339                         PFRB_FOREACH(a, &b) {
 340                                 a2 = pfr_buf_next(&b2, a2);
 341                                 print_addrx(a2, a, opts & PF_OPT_USEDNS);
 342                         }
 343                 }
 344                 if (nmatch < b.pfrb_size)
 345                         rv = 2;
 346         } else if (!strcmp(command, "zero")) {
 347                 if (argc || file != NULL)
 348                         usage();
 349                 flags |= PFR_FLAG_ADDRSTOO;
 350                 RVTEST(pfr_clr_tstats(&table, 1, &nzero, flags));
 351                 xprintf(opts, "%d table/stats cleared", nzero);
 352         } else
 353                 warnx("pfctl_table: unknown command '%s'", command);
 354         goto _cleanup;
 355
 356 _error:
 357         rv = -1;
 358 _cleanup:
 359         pfr_buf_clear(&b);
 360         pfr_buf_clear(&b2);
 361         return (rv);
 362 }
 363
 364 void
 365 print_table(const struct pfr_table *ta, int verbose, int debug)
 366 {
 367         if (!debug && !(ta->pfrt_flags & PFR_TFLAG_ACTIVE))
 368                 return;
 369         if (verbose) {
 370                 printf("%c%c%c%c%c%c%c\t%s",
 371                     (ta->pfrt_flags & PFR_TFLAG_CONST) ? 'c' : '-',
 372                     (ta->pfrt_flags & PFR_TFLAG_PERSIST) ? 'p' : '-',
 373                     (ta->pfrt_flags & PFR_TFLAG_ACTIVE) ? 'a' : '-',
 374                     (ta->pfrt_flags & PFR_TFLAG_INACTIVE) ? 'i' : '-',
 375                     (ta->pfrt_flags & PFR_TFLAG_REFERENCED) ? 'r' : '-',
 376                     (ta->pfrt_flags & PFR_TFLAG_REFDANCHOR) ? 'h' : '-',
 377                     (ta->pfrt_flags & PFR_TFLAG_COUNTERS) ? 'C' : '-',
 378                     ta->pfrt_name);
 379                 if (ta->pfrt_anchor[0])
 380                         printf("\t%s", ta->pfrt_anchor);
 381                 puts("");
 382         } else
 383                 puts(ta->pfrt_name);
 384 }
 385
 386 void
 387 print_tstats(const struct pfr_tstats *ts, int debug)
 388 {
 389         time_t  rtime = ts->pfrts_tzero;
 390         int     dir, op;
 391
 392         if (!debug && !(ts->pfrts_flags & PFR_TFLAG_ACTIVE))
 393                 return;
 394         print_table(&ts->pfrts_t, 1, debug);
 395         printf("\tAddresses:   %d\n", ts->pfrts_cnt);
 396         printf("\tCleared:     %s", ctime(&rtime));
 397         printf("\tReferences:  [ Anchors: %-18d Rules: %-18d ]\n",
 398             ts->pfrts_refcnt[PFR_REFCNT_ANCHOR],
 399             ts->pfrts_refcnt[PFR_REFCNT_RULE]);
 400         printf("\tEvaluations: [ NoMatch: %-18llu Match: %-18llu ]\n",
 401             (unsigned long long)ts->pfrts_nomatch,
 402             (unsigned long long)ts->pfrts_match);
 403         for (dir = 0; dir < PFR_DIR_MAX; dir++)
 404                 for (op = 0; op < PFR_OP_TABLE_MAX; op++)
 405                         printf("\t%-12s [ Packets: %-18llu Bytes: %-18llu ]\n",
 406                             stats_text[dir][op],
 407                             (unsigned long long)ts->pfrts_packets[dir][op],
 408                             (unsigned long long)ts->pfrts_bytes[dir][op]);
 409 }
 410
 411 int
 412 load_addr(struct pfr_buffer *b, int argc, char *argv[], char *file,
 413     int nonetwork)
 414 {
 415         while (argc--)
 416                 if (append_addr(b, *argv++, nonetwork)) {
 417                         if (errno)
 418                                 warn("cannot decode %s", argv[-1]);
 419                         return (-1);
 420                 }
 421         if (pfr_buf_load(b, file, nonetwork, append_addr)) {
 422                 warn("cannot load %s", file);
 423                 return (-1);
 424         }
 425         return (0);
 426 }
 427
 428 void
 429 print_addrx(const struct pfr_addr *ad, const struct pfr_addr *rad, int dns)
 430 {
 431         char            ch, buf[256] = "{error}";
 432         char            fb[] = { ' ', 'M', 'A', 'D', 'C', 'Z', 'X', ' ', 'Y', ' ' };
 433         unsigned int    fback, hostnet;
 434
 435         fback = (rad != NULL) ? rad->pfra_fback : ad->pfra_fback;
 436         ch = (fback < sizeof(fb)/sizeof(*fb)) ? fb[fback] : '?';
 437         hostnet = (ad->pfra_af == AF_INET6) ? 128 : 32;
 438         inet_ntop(ad->pfra_af, &ad->pfra_u, buf, sizeof(buf));
 439         printf("%c %c%s", ch, (ad->pfra_not?'!':' '), buf);
 440         if (ad->pfra_net < hostnet)
 441                 printf("/%d", ad->pfra_net);
 442         if (rad != NULL && fback != PFR_FB_NONE) {
 443                 if (strlcpy(buf, "{error}", sizeof(buf)) >= sizeof(buf))
 444                         errx(1, "print_addrx: strlcpy");
 445                 inet_ntop(rad->pfra_af, &rad->pfra_u, buf, sizeof(buf));
 446                 printf("\t%c%s", (rad->pfra_not?'!':' '), buf);
 447                 if (rad->pfra_net < hostnet)
 448                         printf("/%d", rad->pfra_net);
 449         }
 450         if (rad != NULL && fback == PFR_FB_NONE)
 451                 printf("\t nomatch");
 452         if (dns && ad->pfra_net == hostnet) {
 453                 char hostname[NI_MAXHOST];
 454                 union sockaddr_union sa;
 455
 456                 strlcpy(hostname, "?", sizeof(hostname));
 457                 bzero(&sa, sizeof(sa));
 458                 sa.sa.sa_family = ad->pfra_af;
 459                 if (sa.sa.sa_family == AF_INET) {
 460                         sa.sa.sa_len = sizeof(sa.sin);
 461                         sa.sin.sin_addr = ad->pfra_ip4addr;
 462                 } else {
 463                         sa.sa.sa_len = sizeof(sa.sin6);
 464                         sa.sin6.sin6_addr = ad->pfra_ip6addr;
 465                 }
 466                 if (getnameinfo(&sa.sa, sa.sa.sa_len, hostname, sizeof(hostname),
 467                     NULL, 0, NI_NAMEREQD) == 0)
 468                         printf("\t(%s)", hostname);
 469         }
 470         printf("\n");
 471 }
 472
 473 void
 474 print_astats(const struct pfr_astats *as, int dns)
 475 {
 476         time_t  rtime = as->pfras_tzero;
 477         int     dir, op;
 478
 479         print_addrx(&as->pfras_a, NULL, dns);
 480         printf("\tCleared:     %s", ctime(&rtime));
 481         if (as->pfras_a.pfra_fback == PFR_FB_NOCOUNT)
 482                 return;
 483         for (dir = 0; dir < PFR_DIR_MAX; dir++)
 484                 for (op = 0; op < PFR_OP_ADDR_MAX; op++)
 485                         printf("\t%-12s [ Packets: %-18llu Bytes: %-18llu ]\n",
 486                             stats_text[dir][op],
 487                             (unsigned long long)as->pfras_packets[dir][op],
 488                             (unsigned long long)as->pfras_bytes[dir][op]);
 489 }
 490
 491 void
 492 radix_perror(void)
 493 {
 494         fprintf(stderr, "%s: %s.\n", getprogname(), pfr_strerror(errno));
 495 }
 496
 497 int
 498 pfctl_define_table(char *name, int flags, int addrs, const char *anchor,
 499     struct pfr_buffer *ab, u_int32_t ticket)
 500 {
 501         struct pfr_table tbl;
 502
 503         bzero(&tbl, sizeof(tbl));
 504         if (strlcpy(tbl.pfrt_name, name, sizeof(tbl.pfrt_name)) >=
 505             sizeof(tbl.pfrt_name) || strlcpy(tbl.pfrt_anchor, anchor,
 506             sizeof(tbl.pfrt_anchor)) >= sizeof(tbl.pfrt_anchor))
 507                 errx(1, "pfctl_define_table: strlcpy");
 508         tbl.pfrt_flags = flags;
 509
 510         return pfr_ina_define(&tbl, ab->pfrb_caddr, ab->pfrb_size, NULL,
 511             NULL, ticket, addrs ? PFR_FLAG_ADDRSTOO : 0);
 512 }
 513
 514 void
 515 warn_namespace_collision(const char *filter)
 516 {
 517         struct pfr_buffer b;
 518         const struct pfr_table *t;
 519         const char *name = NULL, *lastcoll;
 520         int coll = 0;
 521
 522         bzero(&b, sizeof(b));
 523         b.pfrb_type = PFRB_TABLES;
 524         for (;;) {
 525                 pfr_buf_grow(&b, b.pfrb_size);
 526                 b.pfrb_size = b.pfrb_msize;
 527                 if (pfr_get_tables(NULL, b.pfrb_caddr,
 528                     &b.pfrb_size, PFR_FLAG_ALLRSETS))
 529                         err(1, "pfr_get_tables");
 530                 if (b.pfrb_size <= b.pfrb_msize)
 531                         break;
 532         }
 533         PFRB_FOREACH(t, &b) {
 534                 if (!(t->pfrt_flags & PFR_TFLAG_ACTIVE))
 535                         continue;
 536                 if (filter != NULL && strcmp(filter, t->pfrt_name))
 537                         continue;
 538                 if (!t->pfrt_anchor[0])
 539                         name = t->pfrt_name;
 540                 else if (name != NULL && !strcmp(name, t->pfrt_name)) {
 541                         coll++;
 542                         lastcoll = name;
 543                         name = NULL;
 544                 }
 545         }
 546         if (coll == 1)
 547                 warnx("warning: namespace collision with <%s> global table.",
 548                     lastcoll);
 549         else if (coll > 1)
 550                 warnx("warning: namespace collisions with %d global tables.",
 551                     coll);
 552         pfr_buf_clear(&b);
 553 }
 554
 555 void
 556 xprintf(int opts, const char *fmt, ...)
 557 {
 558         va_list args;
 559
 560         if (opts & PF_OPT_QUIET)
 561                 return;
 562
 563         va_start(args, fmt);
 564         vfprintf(stderr, fmt, args);
 565         va_end(args);
 566
 567         if (opts & PF_OPT_DUMMYACTION)
 568                 fprintf(stderr, " (dummy).\n");
 569         else if (opts & PF_OPT_NOACTION)
 570                 fprintf(stderr, " (syntax only).\n");
 571         else
 572                 fprintf(stderr, ".\n");
 573 }
 574
 575
 576 /* interface stuff */
 577
 578 int
 579 pfctl_show_ifaces(const char *filter, int opts)
 580 {
 581         struct pfr_buffer        b;
 582         const struct pfi_kif            *p;
 583         int                      i = 0;
 584
 585         bzero(&b, sizeof(b));
 586         b.pfrb_type = PFRB_IFACES;
 587         for (;;) {
 588                 pfr_buf_grow(&b, b.pfrb_size);
 589                 b.pfrb_size = b.pfrb_msize;
 590                 if (pfi_get_ifaces(filter, b.pfrb_caddr, &b.pfrb_size)) {
 591                         radix_perror();
 592                         return (1);
 593                 }
 594                 if (b.pfrb_size <= b.pfrb_msize)
 595                         break;
 596                 i++;
 597         }
 598         if (opts & PF_OPT_SHOWALL)
 599                 pfctl_print_title("INTERFACES:");
 600         PFRB_FOREACH(p, &b)
 601                 print_iface(p, opts);
 602         return (0);
 603 }
 604
 605 void
 606 print_iface(const struct pfi_kif *p, int opts)
 607 {
 608         time_t  tzero = p->pfik_tzero;
 609         int     i, af, dir, act;
 610
 611         printf("%s", p->pfik_name);
 612         if (opts & PF_OPT_VERBOSE) {
 613                 if (p->pfik_flags & PFI_IFLAG_SKIP)
 614                         printf(" (skip)");
 615         }
 616         printf("\n");
 617
 618         if (!(opts & PF_OPT_VERBOSE2))
 619                 return;
 620         printf("\tCleared:     %s", ctime(&tzero));
 621         printf("\tReferences:  [ States:  %-18d Rules: %-18d ]\n",
 622             p->pfik_states, p->pfik_rules);
 623         for (i = 0; i < 8; i++) {
 624                 af = (i>>2) & 1;
 625                 dir = (i>>1) &1;
 626                 act = i & 1;
 627                 printf("\t%-12s [ Packets: %-18llu Bytes: %-18llu ]\n",
 628                     istats_text[af][dir][act],
 629                     (unsigned long long)p->pfik_packets[af][dir][act],
 630                     (unsigned long long)p->pfik_bytes[af][dir][act]);
 631         }
 632 }