xref: /dragonfly/usr.sbin/pfctl/pfctl_table.c (revision d5f516c3)
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 
613