dist/pf/sbin/pfctl/pfctl_table.c

   1 /*      $NetBSD$        */
   2 /*      $OpenBSD: pfctl_table.c,v 1.66 2007/03/01 17:20:54 deraadt 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/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 *, int);
  58 static void     print_table(struct pfr_table *, int, int);
  59 static void     print_tstats(struct pfr_tstats *, int);
  60 static int      load_addr(struct pfr_buffer *, int, char *[], char *, int);
  61 static void     print_addrx(struct pfr_addr *, struct pfr_addr *, int);
  62 static void     print_astats(struct pfr_astats *, int);
  63 static void     radix_perror(void);
  64 static void     xprintf(int, const char *, ...);
  65 static void     print_iface(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         struct pfr_addr         *a, *a2;
 132         int                      nadd = 0, ndel = 0, nchange = 0, nzero = 0;
 133         int                      rv = 0, flags = 0, nmatch = 0;
 134         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 = NULL; /* XXX gcc */
 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                         if (time(NULL) - ((struct pfr_astats *)p)->pfras_tzero >
 278                              lifetime)
 279                                 if (pfr_buf_add(&b2,
 280                                     &((struct pfr_astats *)p)->pfras_a))
 281                                         err(1, "duplicate buffer");
 282
 283                 if (opts & PF_OPT_VERBOSE)
 284                         flags |= PFR_FLAG_FEEDBACK;
 285                 RVTEST(pfr_del_addrs(&table, b2.pfrb_caddr, b2.pfrb_size,
 286                     &ndel, flags));
 287                 xprintf(opts, "%d/%d addresses expired", ndel, b2.pfrb_size);
 288                 if (opts & PF_OPT_VERBOSE)
 289                         PFRB_FOREACH(a, &b2)
 290                                 if ((opts & PF_OPT_VERBOSE2) || a->pfra_fback)
 291                                         print_addrx(a, NULL,
 292                                             opts & PF_OPT_USEDNS);
 293         } else if (!strcmp(command, "show")) {
 294                 b.pfrb_type = (opts & PF_OPT_VERBOSE) ?
 295                         PFRB_ASTATS : PFRB_ADDRS;
 296                 if (argc || file != NULL)
 297                         usage();
 298                 for (;;) {
 299                         pfr_buf_grow(&b, b.pfrb_size);
 300                         b.pfrb_size = b.pfrb_msize;
 301                         if (opts & PF_OPT_VERBOSE)
 302                                 RVTEST(pfr_get_astats(&table, b.pfrb_caddr,
 303                                     &b.pfrb_size, flags));
 304                         else
 305                                 RVTEST(pfr_get_addrs(&table, b.pfrb_caddr,
 306                                     &b.pfrb_size, flags));
 307                         if (b.pfrb_size <= b.pfrb_msize)
 308                                 break;
 309                 }
 310                 PFRB_FOREACH(p, &b)
 311                         if (opts & PF_OPT_VERBOSE)
 312                                 print_astats(p, opts & PF_OPT_USEDNS);
 313                         else
 314                                 print_addrx(p, NULL, opts & PF_OPT_USEDNS);
 315         } else if (!strcmp(command, "test")) {
 316                 b.pfrb_type = PFRB_ADDRS;
 317                 b2.pfrb_type = PFRB_ADDRS;
 318
 319                 if (load_addr(&b, argc, argv, file, 1))
 320                         goto _error;
 321                 if (opts & PF_OPT_VERBOSE2) {
 322                         flags |= PFR_FLAG_REPLACE;
 323                         PFRB_FOREACH(a, &b)
 324                                 if (pfr_buf_add(&b2, a))
 325                                         err(1, "duplicate buffer");
 326                 }
 327                 RVTEST(pfr_tst_addrs(&table, b.pfrb_caddr, b.pfrb_size,
 328                     &nmatch, flags));
 329                 xprintf(opts, "%d/%d addresses match", nmatch, b.pfrb_size);
 330                 if ((opts & PF_OPT_VERBOSE) && !(opts & PF_OPT_VERBOSE2))
 331                         PFRB_FOREACH(a, &b)
 332                                 if (a->pfra_fback == PFR_FB_MATCH)
 333                                         print_addrx(a, NULL,
 334                                             opts & PF_OPT_USEDNS);
 335                 if (opts & PF_OPT_VERBOSE2) {
 336                         a2 = NULL;
 337                         PFRB_FOREACH(a, &b) {
 338                                 a2 = pfr_buf_next(&b2, a2);
 339                                 print_addrx(a2, a, opts & PF_OPT_USEDNS);
 340                         }
 341                 }
 342                 if (nmatch < b.pfrb_size)
 343                         rv = 2;
 344         } else if (!strcmp(command, "zero")) {
 345                 if (argc || file != NULL)
 346                         usage();
 347                 flags |= PFR_FLAG_ADDRSTOO;
 348                 RVTEST(pfr_clr_tstats(&table, 1, &nzero, flags));
 349                 xprintf(opts, "%d table/stats cleared", nzero);
 350         } else
 351                 warnx("pfctl_table: unknown command '%s'", command);
 352         goto _cleanup;
 353
 354 _error:
 355         rv = -1;
 356 _cleanup:
 357         pfr_buf_clear(&b);
 358         pfr_buf_clear(&b2);
 359         return (rv);
 360 }
 361
 362 void
 363 print_table(struct pfr_table *ta, int verbose, int debug)
 364 {
 365         if (!debug && !(ta->pfrt_flags & PFR_TFLAG_ACTIVE))
 366                 return;
 367         if (verbose) {
 368                 printf("%c%c%c%c%c%c\t%s",
 369                     (ta->pfrt_flags & PFR_TFLAG_CONST) ? 'c' : '-',
 370                     (ta->pfrt_flags & PFR_TFLAG_PERSIST) ? 'p' : '-',
 371                     (ta->pfrt_flags & PFR_TFLAG_ACTIVE) ? 'a' : '-',
 372                     (ta->pfrt_flags & PFR_TFLAG_INACTIVE) ? 'i' : '-',
 373                     (ta->pfrt_flags & PFR_TFLAG_REFERENCED) ? 'r' : '-',
 374                     (ta->pfrt_flags & PFR_TFLAG_REFDANCHOR) ? 'h' : '-',
 375                     ta->pfrt_name);
 376                 if (ta->pfrt_anchor[0])
 377                         printf("\t%s", ta->pfrt_anchor);
 378                 puts("");
 379         } else
 380                 puts(ta->pfrt_name);
 381 }
 382
 383 void
 384 print_tstats(struct pfr_tstats *ts, int debug)
 385 {
 386         time_t  time = ts->pfrts_tzero;
 387         int     dir, op;
 388
 389         if (!debug && !(ts->pfrts_flags & PFR_TFLAG_ACTIVE))
 390                 return;
 391         print_table(&ts->pfrts_t, 1, debug);
 392         printf("\tAddresses:   %d\n", ts->pfrts_cnt);
 393         printf("\tCleared:     %s", ctime(&time));
 394         printf("\tReferences:  [ Anchors: %-18d Rules: %-18d ]\n",
 395             ts->pfrts_refcnt[PFR_REFCNT_ANCHOR],
 396             ts->pfrts_refcnt[PFR_REFCNT_RULE]);
 397         printf("\tEvaluations: [ NoMatch: %-18llu Match: %-18llu ]\n",
 398             (unsigned long long)ts->pfrts_nomatch,
 399             (unsigned long long)ts->pfrts_match);
 400         for (dir = 0; dir < PFR_DIR_MAX; dir++)
 401                 for (op = 0; op < PFR_OP_TABLE_MAX; op++)
 402                         printf("\t%-12s [ Packets: %-18llu Bytes: %-18llu ]\n",
 403                             stats_text[dir][op],
 404                             (unsigned long long)ts->pfrts_packets[dir][op],
 405                             (unsigned long long)ts->pfrts_bytes[dir][op]);
 406 }
 407
 408 int
 409 load_addr(struct pfr_buffer *b, int argc, char *argv[], char *file,
 410     int nonetwork)
 411 {
 412         while (argc--)
 413                 if (append_addr(b, *argv++, nonetwork)) {
 414                         if (errno)
 415                                 warn("cannot decode %s", argv[-1]);
 416                         return (-1);
 417                 }
 418         if (pfr_buf_load(b, file, nonetwork, append_addr)) {
 419                 warn("cannot load %s", file);
 420                 return (-1);
 421         }
 422         return (0);
 423 }
 424
 425 void
 426 print_addrx(struct pfr_addr *ad, struct pfr_addr *rad, int dns)
 427 {
 428         char            ch, buf[256] = "{error}";
 429         char            fb[] = { ' ', 'M', 'A', 'D', 'C', 'Z', 'X', ' ', 'Y' };
 430         unsigned int    fback, hostnet;
 431
 432         fback = (rad != NULL) ? rad->pfra_fback : ad->pfra_fback;
 433         ch = (fback < sizeof(fb)/sizeof(*fb)) ? fb[fback] : '?';
 434         hostnet = (ad->pfra_af == AF_INET6) ? 128 : 32;
 435         inet_ntop(ad->pfra_af, &ad->pfra_u, buf, sizeof(buf));
 436         printf("%c %c%s", ch, (ad->pfra_not?'!':' '), buf);
 437         if (ad->pfra_net < hostnet)
 438                 printf("/%d", ad->pfra_net);
 439         if (rad != NULL && fback != PFR_FB_NONE) {
 440                 if (strlcpy(buf, "{error}", sizeof(buf)) >= sizeof(buf))
 441                         errx(1, "print_addrx: strlcpy");
 442                 inet_ntop(rad->pfra_af, &rad->pfra_u, buf, sizeof(buf));
 443                 printf("\t%c%s", (rad->pfra_not?'!':' '), buf);
 444                 if (rad->pfra_net < hostnet)
 445                         printf("/%d", rad->pfra_net);
 446         }
 447         if (rad != NULL && fback == PFR_FB_NONE)
 448                 printf("\t nomatch");
 449         if (dns && ad->pfra_net == hostnet) {
 450                 char host[NI_MAXHOST];
 451                 union sockaddr_union sa;
 452
 453                 strlcpy(host, "?", sizeof(host));
 454                 bzero(&sa, sizeof(sa));
 455                 sa.sa.sa_family = ad->pfra_af;
 456                 if (sa.sa.sa_family == AF_INET) {
 457                         sa.sa.sa_len = sizeof(sa.sin);
 458                         sa.sin.sin_addr = ad->pfra_ip4addr;
 459                 } else {
 460                         sa.sa.sa_len = sizeof(sa.sin6);
 461                         sa.sin6.sin6_addr = ad->pfra_ip6addr;
 462                 }
 463                 if (getnameinfo(&sa.sa, sa.sa.sa_len, host, sizeof(host),
 464                     NULL, 0, NI_NAMEREQD) == 0)
 465                         printf("\t(%s)", host);
 466         }
 467         printf("\n");
 468 }
 469
 470 void
 471 print_astats(struct pfr_astats *as, int dns)
 472 {
 473         time_t  time = as->pfras_tzero;
 474         int     dir, op;
 475
 476         print_addrx(&as->pfras_a, NULL, dns);
 477         printf("\tCleared:     %s", ctime(&time));
 478         for (dir = 0; dir < PFR_DIR_MAX; dir++)
 479                 for (op = 0; op < PFR_OP_ADDR_MAX; op++)
 480                         printf("\t%-12s [ Packets: %-18llu Bytes: %-18llu ]\n",
 481                             stats_text[dir][op],
 482                             (unsigned long long)as->pfras_packets[dir][op],
 483                             (unsigned long long)as->pfras_bytes[dir][op]);
 484 }
 485
 486 void
 487 radix_perror(void)
 488 {
 489         extern char *__progname;
 490         fprintf(stderr, "%s: %s.\n", __progname, pfr_strerror(errno));
 491 }
 492
 493 int
 494 pfctl_define_table(char *name, int flags, int addrs, const char *anchor,
 495     struct pfr_buffer *ab, u_int32_t ticket)
 496 {
 497         struct pfr_table tbl;
 498
 499         bzero(&tbl, sizeof(tbl));
 500         if (strlcpy(tbl.pfrt_name, name, sizeof(tbl.pfrt_name)) >=
 501             sizeof(tbl.pfrt_name) || strlcpy(tbl.pfrt_anchor, anchor,
 502             sizeof(tbl.pfrt_anchor)) >= sizeof(tbl.pfrt_anchor))
 503                 errx(1, "pfctl_define_table: strlcpy");
 504         tbl.pfrt_flags = flags;
 505
 506         return pfr_ina_define(&tbl, ab->pfrb_caddr, ab->pfrb_size, NULL,
 507             NULL, ticket, addrs ? PFR_FLAG_ADDRSTOO : 0);
 508 }
 509
 510 void
 511 warn_namespace_collision(const char *filter)
 512 {
 513         struct pfr_buffer b;
 514         struct pfr_table *t;
 515         const char *name = NULL, *lastcoll = NULL;
 516         int coll = 0;
 517
 518         bzero(&b, sizeof(b));
 519         b.pfrb_type = PFRB_TABLES;
 520         for (;;) {
 521                 pfr_buf_grow(&b, b.pfrb_size);
 522                 b.pfrb_size = b.pfrb_msize;
 523                 if (pfr_get_tables(NULL, b.pfrb_caddr,
 524                     &b.pfrb_size, PFR_FLAG_ALLRSETS))
 525                         err(1, "pfr_get_tables");
 526                 if (b.pfrb_size <= b.pfrb_msize)
 527                         break;
 528         }
 529         PFRB_FOREACH(t, &b) {
 530                 if (!(t->pfrt_flags & PFR_TFLAG_ACTIVE))
 531                         continue;
 532                 if (filter != NULL && strcmp(filter, t->pfrt_name))
 533                         continue;
 534                 if (!t->pfrt_anchor[0])
 535                         name = t->pfrt_name;
 536                 else if (name != NULL && !strcmp(name, t->pfrt_name)) {
 537                         coll++;
 538                         lastcoll = name;
 539                         name = NULL;
 540                 }
 541         }
 542         if (coll == 1)
 543                 warnx("warning: namespace collision with <%s> global table.",
 544                     lastcoll);
 545         else if (coll > 1)
 546                 warnx("warning: namespace collisions with %d global tables.",
 547                     coll);
 548         pfr_buf_clear(&b);
 549 }
 550
 551 void
 552 xprintf(int opts, const char *fmt, ...)
 553 {
 554         va_list args;
 555
 556         if (opts & PF_OPT_QUIET)
 557                 return;
 558
 559         va_start(args, fmt);
 560         vfprintf(stderr, fmt, args);
 561         va_end(args);
 562
 563         if (opts & PF_OPT_DUMMYACTION)
 564                 fprintf(stderr, " (dummy).\n");
 565         else if (opts & PF_OPT_NOACTION)
 566                 fprintf(stderr, " (syntax only).\n");
 567         else
 568                 fprintf(stderr, ".\n");
 569 }
 570
 571
 572 /* interface stuff */
 573
 574 int
 575 pfctl_show_ifaces(const char *filter, int opts)
 576 {
 577         struct pfr_buffer        b;
 578         struct pfi_kif          *p;
 579         int                      i = 0;
 580
 581         bzero(&b, sizeof(b));
 582         b.pfrb_type = PFRB_IFACES;
 583         for (;;) {
 584                 pfr_buf_grow(&b, b.pfrb_size);
 585                 b.pfrb_size = b.pfrb_msize;
 586                 if (pfi_get_ifaces(filter, b.pfrb_caddr, &b.pfrb_size)) {
 587                         radix_perror();
 588                         return (1);
 589                 }
 590                 if (b.pfrb_size <= b.pfrb_msize)
 591                         break;
 592                 i++;
 593         }
 594         if (opts & PF_OPT_SHOWALL)
 595                 pfctl_print_title("INTERFACES:");
 596         PFRB_FOREACH(p, &b)
 597                 print_iface(p, opts);
 598         return (0);
 599 }
 600
 601 void
 602 print_iface(struct pfi_kif *p, int opts)
 603 {
 604         time_t  tzero = p->pfik_tzero;
 605         int     i, af, dir, act;
 606
 607         printf("%s", p->pfik_name);
 608         if (opts & PF_OPT_VERBOSE) {
 609                 if (p->pfik_flags & PFI_IFLAG_SKIP)
 610                         printf(" (skip)");
 611         }
 612         printf("\n");
 613
 614         if (!(opts & PF_OPT_VERBOSE2))
 615                 return;
 616         printf("\tCleared:     %s", ctime(&tzero));
 617         printf("\tReferences:  [ States:  %-18d Rules: %-18d ]\n",
 618             p->pfik_states, p->pfik_rules);
 619         for (i = 0; i < 8; i++) {
 620                 af = (i>>2) & 1;
 621                 dir = (i>>1) &1;
 622                 act = i & 1;
 623                 printf("\t%-12s [ Packets: %-18llu Bytes: %-18llu ]\n",
 624                     istats_text[af][dir][act],
 625                     (unsigned long long)p->pfik_packets[af][dir][act],
 626                     (unsigned long long)p->pfik_bytes[af][dir][act]);
 627         }
 628 }