1 /* $OpenBSD: pfctl.c,v 1.278 2008/08/31 20:18:17 jmc Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 2001 Daniel Hartmeier
7 * Copyright (c) 2002,2003 Henning Brauer
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * - Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * - Redistributions in binary form must reproduce the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer in the documentation and/or other materials provided
19 * with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 *
34 */
35
36 #include <sys/cdefs.h>
37 #define PFIOC_USE_LATEST
38
39 #include <sys/types.h>
40 #include <sys/ioctl.h>
41 #include <sys/socket.h>
42 #include <sys/stat.h>
43 #include <sys/endian.h>
44
45 #include <net/if.h>
46 #include <netinet/in.h>
47 #include <net/pfvar.h>
48 #include <arpa/inet.h>
49 #include <net/altq/altq.h>
50
51 #include <err.h>
52 #include <errno.h>
53 #include <fcntl.h>
54 #include <libpfctl.h>
55 #include <limits.h>
56 #include <netdb.h>
57 #include <stdint.h>
58 #include <stdio.h>
59 #include <stdlib.h>
60 #include <string.h>
61 #include <unistd.h>
62 #include <stdarg.h>
63 #include <libgen.h>
64
65 #include "pfctl_parser.h"
66 #include "pfctl.h"
67
68 void usage(void);
69 int pfctl_enable(int, int);
70 int pfctl_disable(int, int);
71 void pfctl_clear_stats(struct pfctl_handle *, int);
72 void pfctl_get_skip_ifaces(void);
73 void pfctl_check_skip_ifaces(char *);
74 void pfctl_adjust_skip_ifaces(struct pfctl *);
75 void pfctl_clear_interface_flags(int, int);
76 void pfctl_flush_eth_rules(int, int, char *);
77 int pfctl_flush_rules(int, int, char *);
78 void pfctl_flush_nat(int, int, char *);
79 int pfctl_clear_altq(int, int);
80 void pfctl_clear_src_nodes(int, int);
81 void pfctl_clear_iface_states(int, const char *, int);
82 struct addrinfo *
83 pfctl_addrprefix(char *, struct pf_addr *, int);
84 void pfctl_kill_src_nodes(int, int);
85 void pfctl_net_kill_states(int, const char *, int);
86 void pfctl_gateway_kill_states(int, const char *, int);
87 void pfctl_label_kill_states(int, const char *, int);
88 void pfctl_id_kill_states(int, const char *, int);
89 void pfctl_key_kill_states(int, const char *, int);
90 int pfctl_parse_host(char *, struct pf_rule_addr *);
91 void pfctl_init_options(struct pfctl *);
92 int pfctl_load_options(struct pfctl *);
93 int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int);
94 int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int);
95 int pfctl_load_debug(struct pfctl *, unsigned int);
96 int pfctl_load_logif(struct pfctl *, char *);
97 int pfctl_load_hostid(struct pfctl *, u_int32_t);
98 int pfctl_load_reassembly(struct pfctl *, u_int32_t);
99 int pfctl_load_syncookies(struct pfctl *, u_int8_t);
100 int pfctl_get_pool(int, struct pfctl_pool *, u_int32_t, u_int32_t, int,
101 const char *, int);
102 void pfctl_print_eth_rule_counters(struct pfctl_eth_rule *, int);
103 void pfctl_print_rule_counters(struct pfctl_rule *, int);
104 int pfctl_show_eth_rules(int, char *, int, enum pfctl_show, char *, int, int);
105 int pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int, int);
106 int pfctl_show_nat(int, const char *, int, char *, int, int);
107 int pfctl_show_src_nodes(int, int);
108 int pfctl_show_states(int, const char *, int);
109 int pfctl_show_status(int, int);
110 int pfctl_show_running(int);
111 int pfctl_show_timeouts(int, int);
112 int pfctl_show_limits(int, int);
113 void pfctl_read_limits(struct pfctl_handle *);
114 void pfctl_restore_limits(void);
115 void pfctl_debug(int, u_int32_t, int);
116 int pfctl_test_altqsupport(int, int);
117 int pfctl_show_anchors(int, int, char *);
118 int pfctl_show_eth_anchors(int, int, char *);
119 int pfctl_ruleset_trans(struct pfctl *, char *, struct pfctl_anchor *, bool);
120 int pfctl_eth_ruleset_trans(struct pfctl *, char *,
121 struct pfctl_eth_anchor *);
122 int pfctl_load_eth_ruleset(struct pfctl *, char *,
123 struct pfctl_eth_ruleset *, int);
124 int pfctl_load_eth_rule(struct pfctl *, char *, struct pfctl_eth_rule *,
125 int);
126 int pfctl_load_ruleset(struct pfctl *, char *,
127 struct pfctl_ruleset *, int, int);
128 int pfctl_load_rule(struct pfctl *, char *, struct pfctl_rule *, int);
129 const char *pfctl_lookup_option(char *, const char * const *);
130 void pfctl_reset(int, int);
131 int pfctl_walk_show(int, struct pfioc_ruleset *, void *);
132 int pfctl_walk_get(int, struct pfioc_ruleset *, void *);
133 int pfctl_walk_anchors(int, int, const char *,
134 int(*)(int, struct pfioc_ruleset *, void *), void *);
135 struct pfr_anchors *
136 pfctl_get_anchors(int, const char *, int);
137 int pfctl_recurse(int, int, const char *,
138 int(*)(int, int, struct pfr_anchoritem *));
139 int pfctl_call_clearrules(int, int, struct pfr_anchoritem *);
140 int pfctl_call_cleartables(int, int, struct pfr_anchoritem *);
141 int pfctl_call_clearanchors(int, int, struct pfr_anchoritem *);
142 int pfctl_call_showtables(int, int, struct pfr_anchoritem *);
143
144 static struct pfctl_anchor_global pf_anchors;
145 struct pfctl_anchor pf_main_anchor;
146 struct pfctl_eth_anchor pf_eth_main_anchor;
147 static struct pfr_buffer skip_b;
148
149 static const char *clearopt;
150 static char *rulesopt;
151 static const char *showopt;
152 static const char *debugopt;
153 static char *anchoropt;
154 static const char *optiopt = NULL;
155 static const char *pf_device = PF_DEVICE;
156 static char *ifaceopt;
157 static char *tableopt;
158 static const char *tblcmdopt;
159 static int src_node_killers;
160 static char *src_node_kill[2];
161 static int state_killers;
162 static char *state_kill[2];
163 int loadopt;
164 int altqsupport;
165
166 int dev = -1;
167 struct pfctl_handle *pfh = NULL;
168 static int first_title = 1;
169 static int labels = 0;
170 static int exit_val = 0;
171
172 #define INDENT(d, o) do { \
173 if (o) { \
174 int i; \
175 for (i=0; i < d; i++) \
176 printf(" "); \
177 } \
178 } while (0); \
179
180
181 static const struct {
182 const char *name;
183 int index;
184 } pf_limits[] = {
185 { "states", PF_LIMIT_STATES },
186 { "src-nodes", PF_LIMIT_SRC_NODES },
187 { "frags", PF_LIMIT_FRAGS },
188 { "table-entries", PF_LIMIT_TABLE_ENTRIES },
189 { "anchors", PF_LIMIT_ANCHORS },
190 { "eth-anchors", PF_LIMIT_ETH_ANCHORS },
191 { NULL, 0 }
192 };
193
194 static unsigned int limit_curr[PF_LIMIT_MAX];
195
196 struct pf_hint {
197 const char *name;
198 int timeout;
199 };
200 static const struct pf_hint pf_hint_normal[] = {
201 { "tcp.first", 2 * 60 },
202 { "tcp.opening", 30 },
203 { "tcp.established", 24 * 60 * 60 },
204 { "tcp.closing", 15 * 60 },
205 { "tcp.finwait", 45 },
206 { "tcp.closed", 90 },
207 { "tcp.tsdiff", 30 },
208 { NULL, 0 }
209 };
210 static const struct pf_hint pf_hint_satellite[] = {
211 { "tcp.first", 3 * 60 },
212 { "tcp.opening", 30 + 5 },
213 { "tcp.established", 24 * 60 * 60 },
214 { "tcp.closing", 15 * 60 + 5 },
215 { "tcp.finwait", 45 + 5 },
216 { "tcp.closed", 90 + 5 },
217 { "tcp.tsdiff", 60 },
218 { NULL, 0 }
219 };
220 static const struct pf_hint pf_hint_conservative[] = {
221 { "tcp.first", 60 * 60 },
222 { "tcp.opening", 15 * 60 },
223 { "tcp.established", 5 * 24 * 60 * 60 },
224 { "tcp.closing", 60 * 60 },
225 { "tcp.finwait", 10 * 60 },
226 { "tcp.closed", 3 * 60 },
227 { "tcp.tsdiff", 60 },
228 { NULL, 0 }
229 };
230 static const struct pf_hint pf_hint_aggressive[] = {
231 { "tcp.first", 30 },
232 { "tcp.opening", 5 },
233 { "tcp.established", 5 * 60 * 60 },
234 { "tcp.closing", 60 },
235 { "tcp.finwait", 30 },
236 { "tcp.closed", 30 },
237 { "tcp.tsdiff", 10 },
238 { NULL, 0 }
239 };
240
241 static const struct {
242 const char *name;
243 const struct pf_hint *hint;
244 } pf_hints[] = {
245 { "normal", pf_hint_normal },
246 { "satellite", pf_hint_satellite },
247 { "high-latency", pf_hint_satellite },
248 { "conservative", pf_hint_conservative },
249 { "aggressive", pf_hint_aggressive },
250 { NULL, NULL }
251 };
252
253 static const char * const clearopt_list[] = {
254 "nat", "queue", "rules", "Sources",
255 "states", "info", "Tables", "osfp", "all",
256 "ethernet", "Reset", NULL
257 };
258
259 static const char * const showopt_list[] = {
260 "ether", "nat", "queue", "rules", "Anchors", "Sources", "states",
261 "info", "Interfaces", "labels", "timeouts", "memory", "Tables",
262 "osfp", "Running", "all", "creatorids", NULL
263 };
264
265 static const char * const tblcmdopt_list[] = {
266 "kill", "flush", "add", "delete", "load", "replace", "show",
267 "test", "zero", "expire", "reset", NULL
268 };
269
270 static const char * const debugopt_list[] = {
271 "none", "urgent", "misc", "loud", NULL
272 };
273
274 static const char * const optiopt_list[] = {
275 "none", "basic", "profile", NULL
276 };
277
278 void
usage(void)279 usage(void)
280 {
281 extern char *__progname;
282
283 fprintf(stderr,
284 "usage: %s [-AdeghMmNnOPqRSrvz] [-a anchor] [-D macro=value] [-F modifier]\n"
285 "\t[-f file] [-i interface] [-K host | network]\n"
286 "\t[-k host | network | gateway | label | id] [-o level] [-p device]\n"
287 "\t[-s modifier] [-t table -T command [address ...]] [-x level]\n",
288 __progname);
289
290 exit(1);
291 }
292
293 void
pfctl_err(int opts,int eval,const char * fmt,...)294 pfctl_err(int opts, int eval, const char *fmt, ...)
295 {
296 va_list ap;
297
298 va_start(ap, fmt);
299
300 if ((opts & PF_OPT_IGNFAIL) == 0)
301 verr(eval, fmt, ap);
302 else
303 vwarn(fmt, ap);
304
305 va_end(ap);
306
307 exit_val = eval;
308 }
309
310 void
pfctl_errx(int opts,int eval,const char * fmt,...)311 pfctl_errx(int opts, int eval, const char *fmt, ...)
312 {
313 va_list ap;
314
315 va_start(ap, fmt);
316
317 if ((opts & PF_OPT_IGNFAIL) == 0)
318 verrx(eval, fmt, ap);
319 else
320 vwarnx(fmt, ap);
321
322 va_end(ap);
323
324 exit_val = eval;
325 }
326
327 /*
328 * Cache protocol number to name translations.
329 *
330 * Translation is performed a lot e.g., when dumping states and
331 * getprotobynumber is incredibly expensive.
332 *
333 * Note from the getprotobynumber(3) manpage:
334 * <quote>
335 * These functions use a thread-specific data space; if the data is needed
336 * for future use, it should be copied before any subsequent calls overwrite
337 * it. Only the Internet protocols are currently understood.
338 * </quote>
339 *
340 * Consequently we only cache the name and strdup it for safety.
341 *
342 * At the time of writing this comment the last entry in /etc/protocols is:
343 * divert 258 DIVERT # Divert pseudo-protocol [non IANA]
344 */
345 const char *
pfctl_proto2name(int proto)346 pfctl_proto2name(int proto)
347 {
348 static const char *pfctl_proto_cache[259];
349 struct protoent *p;
350
351 if (proto >= nitems(pfctl_proto_cache)) {
352 p = getprotobynumber(proto);
353 if (p == NULL) {
354 return (NULL);
355 }
356 return (p->p_name);
357 }
358
359 if (pfctl_proto_cache[proto] == NULL) {
360 p = getprotobynumber(proto);
361 if (p == NULL) {
362 return (NULL);
363 }
364 pfctl_proto_cache[proto] = strdup(p->p_name);
365 }
366
367 return (pfctl_proto_cache[proto]);
368 }
369
370 int
pfctl_enable(int dev,int opts)371 pfctl_enable(int dev, int opts)
372 {
373 int ret;
374
375 if ((ret = pfctl_startstop(pfh, 1)) != 0) {
376 if (ret == EEXIST)
377 errx(1, "pf already enabled");
378 else if (ret == ESRCH)
379 errx(1, "pfil registeration failed");
380 else
381 errc(1, ret, "DIOCSTART");
382 }
383 if ((opts & PF_OPT_QUIET) == 0)
384 fprintf(stderr, "pf enabled\n");
385
386 if (altqsupport && ioctl(dev, DIOCSTARTALTQ))
387 if (errno != EEXIST)
388 err(1, "DIOCSTARTALTQ");
389
390 return (0);
391 }
392
393 int
pfctl_disable(int dev,int opts)394 pfctl_disable(int dev, int opts)
395 {
396 int ret;
397
398 if ((ret = pfctl_startstop(pfh, 0)) != 0) {
399 if (ret == ENOENT)
400 errx(1, "pf not enabled");
401 else
402 errc(1, ret, "DIOCSTOP");
403 }
404 if ((opts & PF_OPT_QUIET) == 0)
405 fprintf(stderr, "pf disabled\n");
406
407 if (altqsupport && ioctl(dev, DIOCSTOPALTQ))
408 if (errno != ENOENT)
409 err(1, "DIOCSTOPALTQ");
410
411 return (0);
412 }
413
414 void
pfctl_clear_stats(struct pfctl_handle * h,int opts)415 pfctl_clear_stats(struct pfctl_handle *h, int opts)
416 {
417 int ret;
418 if ((ret = pfctl_clear_status(h)) != 0)
419 pfctl_err(opts, 1, "DIOCCLRSTATUS");
420 if ((opts & PF_OPT_QUIET) == 0)
421 fprintf(stderr, "pf: statistics cleared\n");
422 }
423
424 void
pfctl_get_skip_ifaces(void)425 pfctl_get_skip_ifaces(void)
426 {
427 bzero(&skip_b, sizeof(skip_b));
428 skip_b.pfrb_type = PFRB_IFACES;
429 for (;;) {
430 pfr_buf_grow(&skip_b, skip_b.pfrb_size);
431 skip_b.pfrb_size = skip_b.pfrb_msize;
432 if (pfi_get_ifaces(NULL, skip_b.pfrb_caddr, &skip_b.pfrb_size))
433 err(1, "pfi_get_ifaces");
434 if (skip_b.pfrb_size <= skip_b.pfrb_msize)
435 break;
436 }
437 }
438
439 void
pfctl_check_skip_ifaces(char * ifname)440 pfctl_check_skip_ifaces(char *ifname)
441 {
442 struct pfi_kif *p;
443 struct node_host *h = NULL, *n = NULL;
444
445 PFRB_FOREACH(p, &skip_b) {
446 if (!strcmp(ifname, p->pfik_name) &&
447 (p->pfik_flags & PFI_IFLAG_SKIP))
448 p->pfik_flags &= ~PFI_IFLAG_SKIP;
449 if (!strcmp(ifname, p->pfik_name) && p->pfik_group != NULL) {
450 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
451 continue;
452
453 for (n = h; n != NULL; n = n->next) {
454 if (strncmp(p->pfik_name, ifname, IFNAMSIZ))
455 continue;
456
457 p->pfik_flags &= ~PFI_IFLAG_SKIP;
458 }
459 }
460 }
461 }
462
463 void
pfctl_adjust_skip_ifaces(struct pfctl * pf)464 pfctl_adjust_skip_ifaces(struct pfctl *pf)
465 {
466 struct pfi_kif *p, *pp;
467 struct node_host *h = NULL, *n = NULL;
468
469 PFRB_FOREACH(p, &skip_b) {
470 if (p->pfik_group == NULL || !(p->pfik_flags & PFI_IFLAG_SKIP))
471 continue;
472
473 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
474 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
475 continue;
476
477 for (n = h; n != NULL; n = n->next)
478 PFRB_FOREACH(pp, &skip_b) {
479 if (strncmp(pp->pfik_name, n->ifname, IFNAMSIZ))
480 continue;
481
482 if (!(pp->pfik_flags & PFI_IFLAG_SKIP))
483 pfctl_set_interface_flags(pf,
484 pp->pfik_name, PFI_IFLAG_SKIP, 1);
485 if (pp->pfik_flags & PFI_IFLAG_SKIP)
486 pp->pfik_flags &= ~PFI_IFLAG_SKIP;
487 }
488 }
489
490 PFRB_FOREACH(p, &skip_b) {
491 if (! (p->pfik_flags & PFI_IFLAG_SKIP))
492 continue;
493
494 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
495 }
496 }
497
498 void
pfctl_clear_interface_flags(int dev,int opts)499 pfctl_clear_interface_flags(int dev, int opts)
500 {
501 struct pfioc_iface pi;
502
503 if ((opts & PF_OPT_NOACTION) == 0) {
504 bzero(&pi, sizeof(pi));
505 pi.pfiio_flags = PFI_IFLAG_SKIP;
506
507 if (ioctl(dev, DIOCCLRIFFLAG, &pi))
508 err(1, "DIOCCLRIFFLAG");
509 if ((opts & PF_OPT_QUIET) == 0)
510 fprintf(stderr, "pf: interface flags reset\n");
511 }
512 }
513
514 void
pfctl_flush_eth_rules(int dev,int opts,char * anchorname)515 pfctl_flush_eth_rules(int dev, int opts, char *anchorname)
516 {
517 int ret;
518
519 ret = pfctl_clear_eth_rules(dev, anchorname);
520 if (ret != 0)
521 err(1, "pfctl_clear_eth_rules");
522
523 if ((opts & PF_OPT_QUIET) == 0)
524 fprintf(stderr, "Ethernet rules cleared\n");
525 }
526
527 int
pfctl_flush_rules(int dev,int opts,char * anchorname)528 pfctl_flush_rules(int dev, int opts, char *anchorname)
529 {
530 int ret;
531
532 ret = pfctl_clear_rules(dev, anchorname);
533 if (ret != 0) {
534 pfctl_err(opts, 1, "%s", __func__);
535 return (1);
536 } else if ((opts & PF_OPT_QUIET) == 0)
537 fprintf(stderr, "rules cleared\n");
538
539 return (0);
540 }
541
542 void
pfctl_flush_nat(int dev,int opts,char * anchorname)543 pfctl_flush_nat(int dev, int opts, char *anchorname)
544 {
545 int ret;
546
547 ret = pfctl_clear_nat(dev, anchorname);
548 if (ret != 0)
549 err(1, "pfctl_clear_nat");
550 if ((opts & PF_OPT_QUIET) == 0)
551 fprintf(stderr, "nat cleared\n");
552 }
553
554 int
pfctl_clear_altq(int dev,int opts)555 pfctl_clear_altq(int dev, int opts)
556 {
557 struct pfr_buffer t;
558
559 if (!altqsupport)
560 return (-1);
561 memset(&t, 0, sizeof(t));
562 t.pfrb_type = PFRB_TRANS;
563 if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") ||
564 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
565 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
566 err(1, "pfctl_clear_altq");
567 if ((opts & PF_OPT_QUIET) == 0)
568 fprintf(stderr, "altq cleared\n");
569 return (0);
570 }
571
572 void
pfctl_clear_src_nodes(int dev,int opts)573 pfctl_clear_src_nodes(int dev, int opts)
574 {
575 if (ioctl(dev, DIOCCLRSRCNODES))
576 pfctl_err(opts, 1, "DIOCCLRSRCNODES");
577 if ((opts & PF_OPT_QUIET) == 0)
578 fprintf(stderr, "source tracking entries cleared\n");
579 }
580
581 void
pfctl_clear_iface_states(int dev,const char * iface,int opts)582 pfctl_clear_iface_states(int dev, const char *iface, int opts)
583 {
584 struct pfctl_kill kill;
585 unsigned int killed;
586 int ret;
587
588 memset(&kill, 0, sizeof(kill));
589 if (iface != NULL && strlcpy(kill.ifname, iface,
590 sizeof(kill.ifname)) >= sizeof(kill.ifname))
591 pfctl_errx(opts, 1, "invalid interface: %s", iface);
592
593 if (opts & PF_OPT_KILLMATCH)
594 kill.kill_match = true;
595
596 if ((ret = pfctl_clear_states_h(pfh, &kill, &killed)) != 0)
597 pfctl_err(opts, 1, "DIOCCLRSTATUS");
598 if ((opts & PF_OPT_QUIET) == 0)
599 fprintf(stderr, "%d states cleared\n", killed);
600 }
601
602 struct addrinfo *
pfctl_addrprefix(char * addr,struct pf_addr * mask,int numeric)603 pfctl_addrprefix(char *addr, struct pf_addr *mask, int numeric)
604 {
605 char *p;
606 const char *errstr;
607 int prefix, ret_ga, q, r;
608 struct addrinfo hints, *res;
609
610 bzero(&hints, sizeof(hints));
611 hints.ai_socktype = SOCK_DGRAM; /* dummy */
612 if (numeric)
613 hints.ai_flags = AI_NUMERICHOST;
614
615 if ((p = strchr(addr, '/')) != NULL) {
616 *p++ = '\0';
617 /* prefix only with numeric addresses */
618 hints.ai_flags |= AI_NUMERICHOST;
619 }
620
621 if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) {
622 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
623 /* NOTREACHED */
624 }
625
626 if (p == NULL)
627 return (res);
628
629 prefix = strtonum(p, 0, res->ai_family == AF_INET6 ? 128 : 32, &errstr);
630 if (errstr)
631 errx(1, "prefix is %s: %s", errstr, p);
632
633 q = prefix >> 3;
634 r = prefix & 7;
635 switch (res->ai_family) {
636 case AF_INET:
637 bzero(&mask->v4, sizeof(mask->v4));
638 mask->v4.s_addr = htonl((u_int32_t)
639 (0xffffffffffULL << (32 - prefix)));
640 break;
641 case AF_INET6:
642 bzero(&mask->v6, sizeof(mask->v6));
643 if (q > 0)
644 memset((void *)&mask->v6, 0xff, q);
645 if (r > 0)
646 *((u_char *)&mask->v6 + q) =
647 (0xff00 >> r) & 0xff;
648 break;
649 }
650
651 return (res);
652 }
653
654 void
pfctl_kill_src_nodes(int dev,int opts)655 pfctl_kill_src_nodes(int dev, int opts)
656 {
657 struct pfioc_src_node_kill psnk;
658 struct addrinfo *res[2], *resp[2];
659 struct sockaddr last_src, last_dst;
660 int killed, sources, dests;
661
662 killed = sources = dests = 0;
663
664 memset(&psnk, 0, sizeof(psnk));
665 memset(&psnk.psnk_src.addr.v.a.mask, 0xff,
666 sizeof(psnk.psnk_src.addr.v.a.mask));
667 memset(&last_src, 0xff, sizeof(last_src));
668 memset(&last_dst, 0xff, sizeof(last_dst));
669
670 res[0] = pfctl_addrprefix(src_node_kill[0],
671 &psnk.psnk_src.addr.v.a.mask, (opts & PF_OPT_NODNS));
672
673 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
674 if (resp[0]->ai_addr == NULL)
675 continue;
676 /* We get lots of duplicates. Catch the easy ones */
677 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
678 continue;
679 last_src = *(struct sockaddr *)resp[0]->ai_addr;
680
681 psnk.psnk_af = resp[0]->ai_family;
682 sources++;
683
684 copy_satopfaddr(&psnk.psnk_src.addr.v.a.addr, resp[0]->ai_addr);
685
686 if (src_node_killers > 1) {
687 dests = 0;
688 memset(&psnk.psnk_dst.addr.v.a.mask, 0xff,
689 sizeof(psnk.psnk_dst.addr.v.a.mask));
690 memset(&last_dst, 0xff, sizeof(last_dst));
691 res[1] = pfctl_addrprefix(src_node_kill[1],
692 &psnk.psnk_dst.addr.v.a.mask,
693 (opts & PF_OPT_NODNS));
694 for (resp[1] = res[1]; resp[1];
695 resp[1] = resp[1]->ai_next) {
696 if (resp[1]->ai_addr == NULL)
697 continue;
698 if (psnk.psnk_af != resp[1]->ai_family)
699 continue;
700
701 if (memcmp(&last_dst, resp[1]->ai_addr,
702 sizeof(last_dst)) == 0)
703 continue;
704 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
705
706 dests++;
707
708 copy_satopfaddr(&psnk.psnk_dst.addr.v.a.addr,
709 resp[1]->ai_addr);
710 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
711 err(1, "DIOCKILLSRCNODES");
712 killed += psnk.psnk_killed;
713 }
714 freeaddrinfo(res[1]);
715 } else {
716 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
717 err(1, "DIOCKILLSRCNODES");
718 killed += psnk.psnk_killed;
719 }
720 }
721
722 freeaddrinfo(res[0]);
723
724 if ((opts & PF_OPT_QUIET) == 0)
725 fprintf(stderr, "killed %d src nodes from %d sources and %d "
726 "destinations\n", killed, sources, dests);
727 }
728
729 void
pfctl_net_kill_states(int dev,const char * iface,int opts)730 pfctl_net_kill_states(int dev, const char *iface, int opts)
731 {
732 struct pfctl_kill kill;
733 struct addrinfo *res[2], *resp[2];
734 struct sockaddr last_src, last_dst;
735 unsigned int newkilled;
736 int killed, sources, dests;
737 int ret;
738
739 killed = sources = dests = 0;
740
741 memset(&kill, 0, sizeof(kill));
742 memset(&kill.src.addr.v.a.mask, 0xff,
743 sizeof(kill.src.addr.v.a.mask));
744 memset(&last_src, 0xff, sizeof(last_src));
745 memset(&last_dst, 0xff, sizeof(last_dst));
746 if (iface != NULL && strlcpy(kill.ifname, iface,
747 sizeof(kill.ifname)) >= sizeof(kill.ifname))
748 pfctl_errx(opts, 1, "invalid interface: %s", iface);
749
750 if (state_killers == 2 && (strcmp(state_kill[0], "nat") == 0)) {
751 kill.nat = true;
752 state_kill[0] = state_kill[1];
753 state_killers = 1;
754 }
755
756 res[0] = pfctl_addrprefix(state_kill[0],
757 &kill.src.addr.v.a.mask, (opts & PF_OPT_NODNS));
758
759 if (opts & PF_OPT_KILLMATCH)
760 kill.kill_match = true;
761
762 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
763 if (resp[0]->ai_addr == NULL)
764 continue;
765 /* We get lots of duplicates. Catch the easy ones */
766 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
767 continue;
768 last_src = *(struct sockaddr *)resp[0]->ai_addr;
769
770 kill.af = resp[0]->ai_family;
771 sources++;
772
773 copy_satopfaddr(&kill.src.addr.v.a.addr, resp[0]->ai_addr);
774
775 if (state_killers > 1) {
776 dests = 0;
777 memset(&kill.dst.addr.v.a.mask, 0xff,
778 sizeof(kill.dst.addr.v.a.mask));
779 memset(&last_dst, 0xff, sizeof(last_dst));
780 res[1] = pfctl_addrprefix(state_kill[1],
781 &kill.dst.addr.v.a.mask,
782 (opts & PF_OPT_NODNS));
783 for (resp[1] = res[1]; resp[1];
784 resp[1] = resp[1]->ai_next) {
785 if (resp[1]->ai_addr == NULL)
786 continue;
787 if (kill.af != resp[1]->ai_family)
788 continue;
789
790 if (memcmp(&last_dst, resp[1]->ai_addr,
791 sizeof(last_dst)) == 0)
792 continue;
793 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
794
795 dests++;
796
797 copy_satopfaddr(&kill.dst.addr.v.a.addr,
798 resp[1]->ai_addr);
799
800 if ((ret = pfctl_kill_states_h(pfh, &kill, &newkilled)) != 0)
801 pfctl_errx(opts, 1, "DIOCKILLSTATES");
802 killed += newkilled;
803 }
804 freeaddrinfo(res[1]);
805 } else {
806 if ((ret = pfctl_kill_states_h(pfh, &kill, &newkilled)) != 0)
807 pfctl_errx(opts, 1, "DIOCKILLSTATES");
808 killed += newkilled;
809 }
810 }
811
812 freeaddrinfo(res[0]);
813
814 if ((opts & PF_OPT_QUIET) == 0)
815 fprintf(stderr, "killed %d states from %d sources and %d "
816 "destinations\n", killed, sources, dests);
817 }
818
819 void
pfctl_gateway_kill_states(int dev,const char * iface,int opts)820 pfctl_gateway_kill_states(int dev, const char *iface, int opts)
821 {
822 struct pfctl_kill kill;
823 struct addrinfo *res, *resp;
824 struct sockaddr last_src;
825 unsigned int newkilled;
826 int killed = 0;
827
828 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
829 warnx("no gateway specified");
830 usage();
831 }
832
833 memset(&kill, 0, sizeof(kill));
834 memset(&kill.rt_addr.addr.v.a.mask, 0xff,
835 sizeof(kill.rt_addr.addr.v.a.mask));
836 memset(&last_src, 0xff, sizeof(last_src));
837 if (iface != NULL && strlcpy(kill.ifname, iface,
838 sizeof(kill.ifname)) >= sizeof(kill.ifname))
839 pfctl_errx(opts, 1, "invalid interface: %s", iface);
840
841 if (opts & PF_OPT_KILLMATCH)
842 kill.kill_match = true;
843
844 res = pfctl_addrprefix(state_kill[1], &kill.rt_addr.addr.v.a.mask,
845 (opts & PF_OPT_NODNS));
846
847 for (resp = res; resp; resp = resp->ai_next) {
848 if (resp->ai_addr == NULL)
849 continue;
850 /* We get lots of duplicates. Catch the easy ones */
851 if (memcmp(&last_src, resp->ai_addr, sizeof(last_src)) == 0)
852 continue;
853 last_src = *(struct sockaddr *)resp->ai_addr;
854
855 kill.af = resp->ai_family;
856
857 copy_satopfaddr(&kill.rt_addr.addr.v.a.addr,
858 resp->ai_addr);
859 if (pfctl_kill_states_h(pfh, &kill, &newkilled))
860 pfctl_errx(opts, 1, "DIOCKILLSTATES");
861 killed += newkilled;
862 }
863
864 freeaddrinfo(res);
865
866 if ((opts & PF_OPT_QUIET) == 0)
867 fprintf(stderr, "killed %d states\n", killed);
868 }
869
870 void
pfctl_label_kill_states(int dev,const char * iface,int opts)871 pfctl_label_kill_states(int dev, const char *iface, int opts)
872 {
873 struct pfctl_kill kill;
874 unsigned int killed;
875 int ret;
876
877 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
878 warnx("no label specified");
879 usage();
880 }
881 memset(&kill, 0, sizeof(kill));
882 if (iface != NULL && strlcpy(kill.ifname, iface,
883 sizeof(kill.ifname)) >= sizeof(kill.ifname))
884 pfctl_errx(opts, 1, "invalid interface: %s", iface);
885
886 if (opts & PF_OPT_KILLMATCH)
887 kill.kill_match = true;
888
889 if (strlcpy(kill.label, state_kill[1], sizeof(kill.label)) >=
890 sizeof(kill.label))
891 errx(1, "label too long: %s", state_kill[1]);
892
893 if ((ret = pfctl_kill_states_h(pfh, &kill, &killed)) != 0)
894 pfctl_errx(opts, 1, "DIOCKILLSTATES");
895
896 if ((opts & PF_OPT_QUIET) == 0)
897 fprintf(stderr, "killed %d states\n", killed);
898 }
899
900 void
pfctl_id_kill_states(int dev,const char * iface,int opts)901 pfctl_id_kill_states(int dev, const char *iface, int opts)
902 {
903 struct pfctl_kill kill;
904 unsigned int killed;
905 int ret;
906
907 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
908 warnx("no id specified");
909 usage();
910 }
911
912 memset(&kill, 0, sizeof(kill));
913
914 if (opts & PF_OPT_KILLMATCH)
915 kill.kill_match = true;
916
917 if ((sscanf(state_kill[1], "%jx/%x",
918 &kill.cmp.id, &kill.cmp.creatorid)) == 2) {
919 }
920 else if ((sscanf(state_kill[1], "%jx", &kill.cmp.id)) == 1) {
921 kill.cmp.creatorid = 0;
922 } else {
923 warnx("wrong id format specified");
924 usage();
925 }
926 if (kill.cmp.id == 0) {
927 warnx("cannot kill id 0");
928 usage();
929 }
930
931 if ((ret = pfctl_kill_states_h(pfh, &kill, &killed)) != 0)
932 pfctl_errx(opts, 1, "DIOCKILLSTATES");
933
934 if ((opts & PF_OPT_QUIET) == 0)
935 fprintf(stderr, "killed %d states\n", killed);
936 }
937
938 void
pfctl_key_kill_states(int dev,const char * iface,int opts)939 pfctl_key_kill_states(int dev, const char *iface, int opts)
940 {
941 struct pfctl_kill kill;
942 char *s, *token, *tokens[4];
943 struct protoent *p;
944 u_int i, sidx, didx;
945 int ret, killed;
946
947 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
948 warnx("no key specified");
949 usage();
950 }
951 memset(&kill, 0, sizeof(kill));
952
953 if (iface != NULL &&
954 strlcpy(kill.ifname, iface, sizeof(kill.ifname)) >=
955 sizeof(kill.ifname))
956 pfctl_errx(opts, 1, "invalid interface: %s", iface);
957
958 s = strdup(state_kill[1]);
959 if (!s)
960 errx(1, "%s: strdup", __func__);
961 i = 0;
962 while ((token = strsep(&s, " \t")) != NULL)
963 if (*token != '\0') {
964 if (i < 4)
965 tokens[i] = token;
966 i++;
967 }
968 if (i != 4)
969 errx(1, "%s: key must be "
970 "\"protocol host1:port1 direction host2:port2\" format",
971 __func__);
972
973 if ((p = getprotobyname(tokens[0])) == NULL)
974 errx(1, "invalid protocol: %s", tokens[0]);
975 kill.proto = p->p_proto;
976
977 if (strcmp(tokens[2], "->") == 0) {
978 sidx = 1;
979 didx = 3;
980 } else if (strcmp(tokens[2], "<-") == 0) {
981 sidx = 3;
982 didx = 1;
983 } else
984 errx(1, "invalid direction: %s", tokens[2]);
985
986 if (pfctl_parse_host(tokens[sidx], &kill.src) == -1)
987 errx(1, "invalid host: %s", tokens[sidx]);
988 if (pfctl_parse_host(tokens[didx], &kill.dst) == -1)
989 errx(1, "invalid host: %s", tokens[didx]);
990
991 if ((ret = pfctl_kill_states_h(pfh, &kill, &killed)) != 0)
992 pfctl_errx(opts, 1, "DIOCKILLSTATES");
993
994 if ((opts & PF_OPT_QUIET) == 0)
995 fprintf(stderr, "killed %d states\n", killed);
996 }
997
998 int
pfctl_parse_host(char * str,struct pf_rule_addr * addr)999 pfctl_parse_host(char *str, struct pf_rule_addr *addr)
1000 {
1001 char *s = NULL, *sbs, *sbe;
1002 struct addrinfo hints, *ai;
1003
1004 s = strdup(str);
1005 if (!s)
1006 errx(1, "pfctl_parse_host: strdup");
1007
1008 memset(&hints, 0, sizeof(hints));
1009 hints.ai_socktype = SOCK_DGRAM; /* dummy */
1010 hints.ai_flags = AI_NUMERICHOST;
1011
1012 if ((sbs = strchr(s, '[')) != NULL && (sbe = strrchr(s, ']')) != NULL) {
1013 hints.ai_family = AF_INET6;
1014 *(sbs++) = *sbe = '\0';
1015 } else if ((sbs = strchr(s, ':')) != NULL) {
1016 hints.ai_family = AF_INET;
1017 *(sbs++) = '\0';
1018 } else {
1019 /* Assume that no ':<number>' means port 0 */
1020 }
1021
1022 if (getaddrinfo(s, sbs, &hints, &ai) != 0)
1023 goto error;
1024
1025 copy_satopfaddr(&addr->addr.v.a.addr, ai->ai_addr);
1026 addr->port[0] = ai->ai_family == AF_INET6 ?
1027 ((struct sockaddr_in6 *)ai->ai_addr)->sin6_port :
1028 ((struct sockaddr_in *)ai->ai_addr)->sin_port;
1029 freeaddrinfo(ai);
1030 free(s);
1031
1032 memset(&addr->addr.v.a.mask, 0xff, sizeof(struct pf_addr));
1033 addr->port_op = PF_OP_EQ;
1034 addr->addr.type = PF_ADDR_ADDRMASK;
1035
1036 return (0);
1037
1038 error:
1039 free(s);
1040 return (-1);
1041 }
1042
1043 int
pfctl_get_pool(int dev,struct pfctl_pool * pool,u_int32_t nr,u_int32_t ticket,int r_action,const char * anchorname,int which)1044 pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr,
1045 u_int32_t ticket, int r_action, const char *anchorname, int which)
1046 {
1047 struct pfioc_pooladdr pp;
1048 struct pfctl_pooladdr *pa;
1049 u_int32_t pnr, mpnr;
1050 int ret;
1051
1052 memset(&pp, 0, sizeof(pp));
1053 if ((ret = pfctl_get_addrs(pfh, ticket, nr, r_action, anchorname, &mpnr, which)) != 0) {
1054 warnc(ret, "DIOCGETADDRS");
1055 return (-1);
1056 }
1057
1058 TAILQ_INIT(&pool->list);
1059 for (pnr = 0; pnr < mpnr; ++pnr) {
1060 if ((ret = pfctl_get_addr(pfh, ticket, nr, r_action, anchorname, pnr, &pp, which)) != 0) {
1061 warnc(ret, "DIOCGETADDR");
1062 return (-1);
1063 }
1064 pa = calloc(1, sizeof(struct pfctl_pooladdr));
1065 if (pa == NULL)
1066 err(1, "calloc");
1067 bcopy(&pp.addr, pa, sizeof(struct pfctl_pooladdr));
1068 pa->af = pp.af;
1069 TAILQ_INSERT_TAIL(&pool->list, pa, entries);
1070 }
1071
1072 return (0);
1073 }
1074
1075 void
pfctl_move_pool(struct pfctl_pool * src,struct pfctl_pool * dst)1076 pfctl_move_pool(struct pfctl_pool *src, struct pfctl_pool *dst)
1077 {
1078 struct pfctl_pooladdr *pa;
1079
1080 while ((pa = TAILQ_FIRST(&src->list)) != NULL) {
1081 TAILQ_REMOVE(&src->list, pa, entries);
1082 TAILQ_INSERT_TAIL(&dst->list, pa, entries);
1083 }
1084 }
1085
1086 void
pfctl_clear_pool(struct pfctl_pool * pool)1087 pfctl_clear_pool(struct pfctl_pool *pool)
1088 {
1089 struct pfctl_pooladdr *pa;
1090
1091 while ((pa = TAILQ_FIRST(&pool->list)) != NULL) {
1092 TAILQ_REMOVE(&pool->list, pa, entries);
1093 free(pa);
1094 }
1095 }
1096
1097 void
pfctl_print_eth_rule_counters(struct pfctl_eth_rule * rule,int opts)1098 pfctl_print_eth_rule_counters(struct pfctl_eth_rule *rule, int opts)
1099 {
1100 if (opts & PF_OPT_VERBOSE) {
1101 printf(" [ Evaluations: %-8llu Packets: %-8llu "
1102 "Bytes: %-10llu]\n",
1103 (unsigned long long)rule->evaluations,
1104 (unsigned long long)(rule->packets[0] +
1105 rule->packets[1]),
1106 (unsigned long long)(rule->bytes[0] +
1107 rule->bytes[1]));
1108 }
1109 if (opts & PF_OPT_VERBOSE2) {
1110 char timestr[30];
1111
1112 if (rule->last_active_timestamp != 0) {
1113 bcopy(ctime(&rule->last_active_timestamp), timestr,
1114 sizeof(timestr));
1115 *strchr(timestr, '\n') = '\0';
1116 } else {
1117 snprintf(timestr, sizeof(timestr), "N/A");
1118 }
1119 printf(" [ Last Active Time: %s ]\n", timestr);
1120 }
1121 }
1122
1123 void
pfctl_print_rule_counters(struct pfctl_rule * rule,int opts)1124 pfctl_print_rule_counters(struct pfctl_rule *rule, int opts)
1125 {
1126 if (opts & PF_OPT_DEBUG) {
1127 const char *t[PF_SKIP_COUNT] = { "i", "d", "f",
1128 "p", "sa", "da", "sp", "dp" };
1129 int i;
1130
1131 printf(" [ Skip steps: ");
1132 for (i = 0; i < PF_SKIP_COUNT; ++i) {
1133 if (rule->skip[i].nr == rule->nr + 1)
1134 continue;
1135 printf("%s=", t[i]);
1136 if (rule->skip[i].nr == -1)
1137 printf("end ");
1138 else
1139 printf("%u ", rule->skip[i].nr);
1140 }
1141 printf("]\n");
1142
1143 printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n",
1144 rule->qname, rule->qid, rule->pqname, rule->pqid);
1145 }
1146 if (opts & PF_OPT_VERBOSE) {
1147 printf(" [ Evaluations: %-8llu Packets: %-8llu "
1148 "Bytes: %-10llu States: %-6ju]\n",
1149 (unsigned long long)rule->evaluations,
1150 (unsigned long long)(rule->packets[0] +
1151 rule->packets[1]),
1152 (unsigned long long)(rule->bytes[0] +
1153 rule->bytes[1]), (uintmax_t)rule->states_cur);
1154 printf(" [ Source Nodes: %-6ju "
1155 "Limit: %-6ju "
1156 "NAT/RDR: %-6ju "
1157 "Route: %-6ju "
1158 "]\n",
1159 (uintmax_t)rule->src_nodes,
1160 (uintmax_t)rule->src_nodes_type[PF_SN_LIMIT],
1161 (uintmax_t)rule->src_nodes_type[PF_SN_NAT],
1162 (uintmax_t)rule->src_nodes_type[PF_SN_ROUTE]);
1163 if (!(opts & PF_OPT_DEBUG))
1164 printf(" [ Inserted: uid %u pid %u "
1165 "State Creations: %-6ju]\n",
1166 (unsigned)rule->cuid, (unsigned)rule->cpid,
1167 (uintmax_t)rule->states_tot);
1168 }
1169 if (opts & PF_OPT_VERBOSE2) {
1170 char timestr[30];
1171 if (rule->last_active_timestamp != 0) {
1172 bcopy(ctime(&rule->last_active_timestamp), timestr,
1173 sizeof(timestr));
1174 *strchr(timestr, '\n') = '\0';
1175 } else {
1176 snprintf(timestr, sizeof(timestr), "N/A");
1177 }
1178 printf(" [ Last Active Time: %s ]\n", timestr);
1179 }
1180 }
1181
1182 void
pfctl_print_title(char * title)1183 pfctl_print_title(char *title)
1184 {
1185 if (!first_title)
1186 printf("\n");
1187 first_title = 0;
1188 printf("%s\n", title);
1189 }
1190
1191 int
pfctl_show_eth_rules(int dev,char * path,int opts,enum pfctl_show format,char * anchorname,int depth,int wildcard)1192 pfctl_show_eth_rules(int dev, char *path, int opts, enum pfctl_show format,
1193 char *anchorname, int depth, int wildcard)
1194 {
1195 char anchor_call[MAXPATHLEN];
1196 struct pfctl_eth_rules_info info;
1197 struct pfctl_eth_rule rule;
1198 int brace;
1199 int dotitle = opts & PF_OPT_SHOWALL;
1200 int len = strlen(path);
1201 int ret;
1202 char *npath, *p;
1203
1204 /*
1205 * Truncate a trailing / and * on an anchorname before searching for
1206 * the ruleset, this is syntactic sugar that doesn't actually make it
1207 * to the kernel.
1208 */
1209 if ((p = strrchr(anchorname, '/')) != NULL &&
1210 p[1] == '*' && p[2] == '\0') {
1211 p[0] = '\0';
1212 }
1213
1214 if (anchorname[0] == '/') {
1215 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1216 errx(1, "calloc");
1217 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1218 } else {
1219 if (path[0])
1220 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1221 else
1222 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1223 npath = path;
1224 }
1225
1226 /*
1227 * If this anchor was called with a wildcard path, go through
1228 * the rulesets in the anchor rather than the rules.
1229 */
1230 if (wildcard && (opts & PF_OPT_RECURSE)) {
1231 struct pfctl_eth_rulesets_info ri;
1232 u_int32_t mnr, nr;
1233
1234 if ((ret = pfctl_get_eth_rulesets_info(dev, &ri, npath)) != 0) {
1235 if (ret == EINVAL) {
1236 fprintf(stderr, "Anchor '%s' "
1237 "not found.\n", anchorname);
1238 } else {
1239 warnc(ret, "DIOCGETETHRULESETS");
1240 return (-1);
1241 }
1242 }
1243 mnr = ri.nr;
1244
1245 pfctl_print_eth_rule_counters(&rule, opts);
1246 for (nr = 0; nr < mnr; ++nr) {
1247 struct pfctl_eth_ruleset_info rs;
1248
1249 if ((ret = pfctl_get_eth_ruleset(dev, npath, nr, &rs)) != 0)
1250 errc(1, ret, "DIOCGETETHRULESET");
1251 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1252 printf("anchor \"%s\" all {\n", rs.name);
1253 pfctl_show_eth_rules(dev, npath, opts,
1254 format, rs.name, depth + 1, 0);
1255 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1256 printf("}\n");
1257 }
1258 path[len] = '\0';
1259 return (0);
1260 }
1261
1262 if ((ret = pfctl_get_eth_rules_info(dev, &info, path)) != 0) {
1263 warnc(ret, "DIOCGETETHRULES");
1264 return (-1);
1265 }
1266 for (int nr = 0; nr < info.nr; nr++) {
1267 brace = 0;
1268 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1269 if ((ret = pfctl_get_eth_rule(dev, nr, info.ticket, path, &rule,
1270 opts & PF_OPT_CLRRULECTRS, anchor_call)) != 0) {
1271 warnc(ret, "DIOCGETETHRULE");
1272 return (-1);
1273 }
1274 if (anchor_call[0] &&
1275 ((((p = strrchr(anchor_call, '_')) != NULL) &&
1276 (p == anchor_call ||
1277 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
1278 brace++;
1279 int aclen = strlen(anchor_call);
1280 if (anchor_call[aclen - 1] == '*')
1281 anchor_call[aclen - 2] = '\0';
1282 }
1283 p = &anchor_call[0];
1284 if (dotitle) {
1285 pfctl_print_title("ETH RULES:");
1286 dotitle = 0;
1287 }
1288 print_eth_rule(&rule, anchor_call,
1289 opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG));
1290 if (brace)
1291 printf(" {\n");
1292 else
1293 printf("\n");
1294 pfctl_print_eth_rule_counters(&rule, opts);
1295 if (brace) {
1296 pfctl_show_eth_rules(dev, path, opts, format,
1297 p, depth + 1, rule.anchor_wildcard);
1298 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1299 printf("}\n");
1300 }
1301 }
1302
1303 path[len] = '\0';
1304 return (0);
1305 }
1306
1307 int
pfctl_show_rules(int dev,char * path,int opts,enum pfctl_show format,char * anchorname,int depth,int wildcard)1308 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
1309 char *anchorname, int depth, int wildcard)
1310 {
1311 struct pfctl_rules_info ri;
1312 struct pfctl_rule rule;
1313 char anchor_call[MAXPATHLEN];
1314 u_int32_t nr, header = 0;
1315 int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
1316 int numeric = opts & PF_OPT_NUMERIC;
1317 int len = strlen(path), ret = 0;
1318 char *npath, *p;
1319
1320 /*
1321 * Truncate a trailing / and * on an anchorname before searching for
1322 * the ruleset, this is syntactic sugar that doesn't actually make it
1323 * to the kernel.
1324 */
1325 if ((p = strrchr(anchorname, '/')) != NULL &&
1326 p[1] == '*' && p[2] == '\0') {
1327 p[0] = '\0';
1328 }
1329
1330 if (anchorname[0] == '/') {
1331 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1332 errx(1, "calloc");
1333 strlcpy(npath, anchorname, MAXPATHLEN);
1334 } else {
1335 if (path[0])
1336 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1337 else
1338 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1339 npath = path;
1340 }
1341
1342 /*
1343 * If this anchor was called with a wildcard path, go through
1344 * the rulesets in the anchor rather than the rules.
1345 */
1346 if (wildcard && (opts & PF_OPT_RECURSE)) {
1347 struct pfioc_ruleset prs;
1348 u_int32_t mnr, nr;
1349
1350 memset(&prs, 0, sizeof(prs));
1351 if ((ret = pfctl_get_rulesets(pfh, npath, &mnr)) != 0)
1352 errx(1, "%s", pf_strerror(ret));
1353
1354 for (nr = 0; nr < mnr; ++nr) {
1355 if ((ret = pfctl_get_ruleset(pfh, npath, nr, &prs)) != 0)
1356 errx(1, "%s", pf_strerror(ret));
1357 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1358 printf("anchor \"%s\" all {\n", prs.name);
1359 pfctl_show_rules(dev, npath, opts,
1360 format, prs.name, depth + 1, 0);
1361 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1362 printf("}\n");
1363 }
1364 path[len] = '\0';
1365 return (0);
1366 }
1367
1368 if (opts & PF_OPT_SHOWALL) {
1369 ret = pfctl_get_rules_info_h(pfh, &ri, PF_PASS, path);
1370 if (ret != 0) {
1371 warnx("%s", pf_strerror(ret));
1372 goto error;
1373 }
1374 header++;
1375 }
1376 ret = pfctl_get_rules_info_h(pfh, &ri, PF_SCRUB, path);
1377 if (ret != 0) {
1378 warnx("%s", pf_strerror(ret));
1379 goto error;
1380 }
1381 if (opts & PF_OPT_SHOWALL) {
1382 if (format == PFCTL_SHOW_RULES && (ri.nr > 0 || header))
1383 pfctl_print_title("FILTER RULES:");
1384 else if (format == PFCTL_SHOW_LABELS && labels)
1385 pfctl_print_title("LABEL COUNTERS:");
1386 }
1387
1388 for (nr = 0; nr < ri.nr; ++nr) {
1389 if ((ret = pfctl_get_clear_rule_h(pfh, nr, ri.ticket, path, PF_SCRUB,
1390 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) != 0) {
1391 warnc(ret, "DIOCGETRULENV");
1392 goto error;
1393 }
1394
1395 if (pfctl_get_pool(dev, &rule.rdr,
1396 nr, ri.ticket, PF_SCRUB, path, PF_RDR) != 0)
1397 goto error;
1398
1399 if (pfctl_get_pool(dev, &rule.nat,
1400 nr, ri.ticket, PF_SCRUB, path, PF_NAT) != 0)
1401 goto error;
1402
1403 if (pfctl_get_pool(dev, &rule.route,
1404 nr, ri.ticket, PF_SCRUB, path, PF_RT) != 0)
1405 goto error;
1406
1407 switch (format) {
1408 case PFCTL_SHOW_LABELS:
1409 break;
1410 case PFCTL_SHOW_RULES:
1411 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1412 labels = 1;
1413 print_rule(&rule, anchor_call, rule_numbers, numeric);
1414 printf("\n");
1415 pfctl_print_rule_counters(&rule, opts);
1416 break;
1417 case PFCTL_SHOW_NOTHING:
1418 break;
1419 }
1420 pfctl_clear_pool(&rule.rdr);
1421 pfctl_clear_pool(&rule.nat);
1422 pfctl_clear_pool(&rule.route);
1423 }
1424 ret = pfctl_get_rules_info_h(pfh, &ri, PF_PASS, path);
1425 if (ret != 0) {
1426 warnc(ret, "DIOCGETRULES");
1427 goto error;
1428 }
1429 for (nr = 0; nr < ri.nr; ++nr) {
1430 if ((ret = pfctl_get_clear_rule_h(pfh, nr, ri.ticket, path, PF_PASS,
1431 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) != 0) {
1432 warnc(ret, "DIOCGETRULE");
1433 goto error;
1434 }
1435
1436 if (pfctl_get_pool(dev, &rule.rdr,
1437 nr, ri.ticket, PF_PASS, path, PF_RDR) != 0)
1438 goto error;
1439
1440 if (pfctl_get_pool(dev, &rule.nat,
1441 nr, ri.ticket, PF_PASS, path, PF_NAT) != 0)
1442 goto error;
1443
1444 if (pfctl_get_pool(dev, &rule.route,
1445 nr, ri.ticket, PF_PASS, path, PF_RT) != 0)
1446 goto error;
1447
1448 switch (format) {
1449 case PFCTL_SHOW_LABELS: {
1450 bool show = false;
1451 int i = 0;
1452
1453 while (rule.label[i][0]) {
1454 printf("%s ", rule.label[i++]);
1455 show = true;
1456 }
1457
1458 if (show) {
1459 printf("%llu %llu %llu %llu"
1460 " %llu %llu %llu %ju\n",
1461 (unsigned long long)rule.evaluations,
1462 (unsigned long long)(rule.packets[0] +
1463 rule.packets[1]),
1464 (unsigned long long)(rule.bytes[0] +
1465 rule.bytes[1]),
1466 (unsigned long long)rule.packets[0],
1467 (unsigned long long)rule.bytes[0],
1468 (unsigned long long)rule.packets[1],
1469 (unsigned long long)rule.bytes[1],
1470 (uintmax_t)rule.states_tot);
1471 }
1472
1473 if (anchor_call[0] &&
1474 (((p = strrchr(anchor_call, '/')) ?
1475 p[1] == '_' : anchor_call[0] == '_') ||
1476 opts & PF_OPT_RECURSE)) {
1477 pfctl_show_rules(dev, npath, opts, format,
1478 anchor_call, depth, rule.anchor_wildcard);
1479 }
1480 break;
1481 }
1482 case PFCTL_SHOW_RULES:
1483 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1484 labels = 1;
1485 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1486 print_rule(&rule, anchor_call, rule_numbers, numeric);
1487
1488 /*
1489 * If this is a 'unnamed' brace notation
1490 * anchor, OR the user has explicitly requested
1491 * recursion, print it recursively.
1492 */
1493 if (anchor_call[0] &&
1494 (((p = strrchr(anchor_call, '/')) ?
1495 p[1] == '_' : anchor_call[0] == '_') ||
1496 opts & PF_OPT_RECURSE)) {
1497 printf(" {\n");
1498 pfctl_print_rule_counters(&rule, opts);
1499 pfctl_show_rules(dev, npath, opts, format,
1500 anchor_call, depth + 1,
1501 rule.anchor_wildcard);
1502 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1503 printf("}\n");
1504 } else {
1505 printf("\n");
1506 pfctl_print_rule_counters(&rule, opts);
1507 }
1508 break;
1509 case PFCTL_SHOW_NOTHING:
1510 break;
1511 }
1512 pfctl_clear_pool(&rule.rdr);
1513 pfctl_clear_pool(&rule.nat);
1514 }
1515
1516 error:
1517 path[len] = '\0';
1518 return (ret);
1519 }
1520
1521 int
pfctl_show_nat(int dev,const char * path,int opts,char * anchorname,int depth,int wildcard)1522 pfctl_show_nat(int dev, const char *path, int opts, char *anchorname, int depth,
1523 int wildcard)
1524 {
1525 struct pfctl_rules_info ri;
1526 struct pfctl_rule rule;
1527 char anchor_call[MAXPATHLEN];
1528 u_int32_t nr;
1529 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
1530 int i, dotitle = opts & PF_OPT_SHOWALL;
1531 int ret;
1532 int len = strlen(path);
1533 char *npath, *p;
1534
1535 /*
1536 * Truncate a trailing / and * on an anchorname before searching for
1537 * the ruleset, this is syntactic sugar that doesn't actually make it
1538 * to the kernel.
1539 */
1540 if ((p = strrchr(anchorname, '/')) != NULL &&
1541 p[1] == '*' && p[2] == '\0') {
1542 p[0] = '\0';
1543 }
1544
1545 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1546 errx(1, "calloc");
1547
1548 if (anchorname[0] == '/') {
1549 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1550 } else {
1551 snprintf(npath, MAXPATHLEN, "%s", path);
1552 if (npath[0])
1553 snprintf(&npath[len], MAXPATHLEN - len, "/%s", anchorname);
1554 else
1555 snprintf(&npath[len], MAXPATHLEN - len, "%s", anchorname);
1556 }
1557
1558 /*
1559 * If this anchor was called with a wildcard path, go through
1560 * the rulesets in the anchor rather than the rules.
1561 */
1562 if (wildcard && (opts & PF_OPT_RECURSE)) {
1563 struct pfioc_ruleset prs;
1564 u_int32_t mnr, nr;
1565 memset(&prs, 0, sizeof(prs));
1566 if ((ret = pfctl_get_rulesets(pfh, npath, &mnr)) != 0) {
1567 if (ret == EINVAL)
1568 fprintf(stderr, "NAT anchor '%s' "
1569 "not found.\n", anchorname);
1570 else
1571 errx(1, "%s", pf_strerror(ret));
1572 }
1573
1574 for (nr = 0; nr < mnr; ++nr) {
1575 if ((ret = pfctl_get_ruleset(pfh, npath, nr, &prs)) != 0)
1576 errx(1, "%s", pf_strerror(ret));
1577 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1578 printf("nat-anchor \"%s\" all {\n", prs.name);
1579 pfctl_show_nat(dev, npath, opts,
1580 prs.name, depth + 1, 0);
1581 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1582 printf("}\n");
1583 }
1584 npath[len] = '\0';
1585 return (0);
1586 }
1587
1588 for (i = 0; i < 3; i++) {
1589 ret = pfctl_get_rules_info_h(pfh, &ri, nattype[i], npath);
1590 if (ret != 0) {
1591 warnc(ret, "DIOCGETRULES");
1592 return (-1);
1593 }
1594 for (nr = 0; nr < ri.nr; ++nr) {
1595 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1596
1597 if ((ret = pfctl_get_rule_h(pfh, nr, ri.ticket, npath,
1598 nattype[i], &rule, anchor_call)) != 0) {
1599 warnc(ret, "DIOCGETRULE");
1600 return (-1);
1601 }
1602 if (pfctl_get_pool(dev, &rule.rdr, nr,
1603 ri.ticket, nattype[i], npath, PF_RDR) != 0)
1604 return (-1);
1605 if (pfctl_get_pool(dev, &rule.nat, nr,
1606 ri.ticket, nattype[i], npath, PF_NAT) != 0)
1607 return (-1);
1608 if (pfctl_get_pool(dev, &rule.route, nr,
1609 ri.ticket, nattype[i], npath, PF_RT) != 0)
1610 return (-1);
1611
1612 if (dotitle) {
1613 pfctl_print_title("TRANSLATION RULES:");
1614 dotitle = 0;
1615 }
1616 print_rule(&rule, anchor_call,
1617 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
1618 if (anchor_call[0] &&
1619 (((p = strrchr(anchor_call, '/')) ?
1620 p[1] == '_' : anchor_call[0] == '_') ||
1621 opts & PF_OPT_RECURSE)) {
1622 printf(" {\n");
1623 pfctl_print_rule_counters(&rule, opts);
1624 pfctl_show_nat(dev, npath, opts, anchor_call,
1625 depth + 1, rule.anchor_wildcard);
1626 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1627 printf("}\n");
1628 } else {
1629 printf("\n");
1630 pfctl_print_rule_counters(&rule, opts);
1631 }
1632 }
1633 }
1634 return (0);
1635 }
1636
1637 static int
pfctl_print_src_node(struct pfctl_src_node * sn,void * arg)1638 pfctl_print_src_node(struct pfctl_src_node *sn, void *arg)
1639 {
1640 int *opts = (int *)arg;
1641
1642 if (*opts & PF_OPT_SHOWALL) {
1643 pfctl_print_title("SOURCE TRACKING NODES:");
1644 *opts &= ~PF_OPT_SHOWALL;
1645 }
1646
1647 print_src_node(sn, *opts);
1648
1649 return (0);
1650 }
1651
1652 int
pfctl_show_src_nodes(int dev,int opts)1653 pfctl_show_src_nodes(int dev, int opts)
1654 {
1655 int error;
1656
1657 error = pfctl_get_srcnodes(pfh, pfctl_print_src_node, &opts);
1658
1659 return (error);
1660 }
1661
1662 struct pfctl_show_state_arg {
1663 int opts;
1664 int dotitle;
1665 const char *iface;
1666 };
1667
1668 static int
pfctl_show_state(struct pfctl_state * s,void * arg)1669 pfctl_show_state(struct pfctl_state *s, void *arg)
1670 {
1671 struct pfctl_show_state_arg *a = (struct pfctl_show_state_arg *)arg;
1672
1673 if (a->dotitle) {
1674 pfctl_print_title("STATES:");
1675 a->dotitle = 0;
1676 }
1677 print_state(s, a->opts);
1678
1679 return (0);
1680 }
1681
1682 int
pfctl_show_states(int dev,const char * iface,int opts)1683 pfctl_show_states(int dev, const char *iface, int opts)
1684 {
1685 struct pfctl_show_state_arg arg;
1686 struct pfctl_state_filter filter = {};
1687
1688 if (iface != NULL)
1689 strlcpy(filter.ifname, iface, IFNAMSIZ);
1690
1691 arg.opts = opts;
1692 arg.dotitle = opts & PF_OPT_SHOWALL;
1693 arg.iface = iface;
1694
1695 if (pfctl_get_filtered_states_iter(&filter, pfctl_show_state, &arg))
1696 return (-1);
1697
1698 return (0);
1699 }
1700
1701 int
pfctl_show_status(int dev,int opts)1702 pfctl_show_status(int dev, int opts)
1703 {
1704 struct pfctl_status *status;
1705 struct pfctl_syncookies cookies;
1706 int ret;
1707
1708 if ((status = pfctl_get_status_h(pfh)) == NULL) {
1709 warn("DIOCGETSTATUS");
1710 return (-1);
1711 }
1712 if ((ret = pfctl_get_syncookies(dev, &cookies)) != 0) {
1713 pfctl_free_status(status);
1714 warnc(ret, "DIOCGETSYNCOOKIES");
1715 return (-1);
1716 }
1717 if (opts & PF_OPT_SHOWALL)
1718 pfctl_print_title("INFO:");
1719 print_status(status, &cookies, opts);
1720 pfctl_free_status(status);
1721 return (0);
1722 }
1723
1724 int
pfctl_show_running(int dev)1725 pfctl_show_running(int dev)
1726 {
1727 struct pfctl_status *status;
1728 int running;
1729
1730 if ((status = pfctl_get_status_h(pfh)) == NULL) {
1731 warn("DIOCGETSTATUS");
1732 return (-1);
1733 }
1734
1735 running = status->running;
1736
1737 print_running(status);
1738 pfctl_free_status(status);
1739 return (!running);
1740 }
1741
1742 int
pfctl_show_timeouts(int dev,int opts)1743 pfctl_show_timeouts(int dev, int opts)
1744 {
1745 uint32_t seconds;
1746 int i;
1747 int ret;
1748
1749 if (opts & PF_OPT_SHOWALL)
1750 pfctl_print_title("TIMEOUTS:");
1751 for (i = 0; pf_timeouts[i].name; i++) {
1752 if ((ret = pfctl_get_timeout(pfh, pf_timeouts[i].timeout, &seconds)) != 0)
1753 errc(1, ret, "DIOCGETTIMEOUT");
1754 printf("%-20s %10d", pf_timeouts[i].name, seconds);
1755 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START &&
1756 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END)
1757 printf(" states");
1758 else
1759 printf("s");
1760 printf("\n");
1761 }
1762 return (0);
1763
1764 }
1765
1766 int
pfctl_show_limits(int dev,int opts)1767 pfctl_show_limits(int dev, int opts)
1768 {
1769 unsigned int limit;
1770 int i;
1771 int ret;
1772
1773 if (opts & PF_OPT_SHOWALL)
1774 pfctl_print_title("LIMITS:");
1775 for (i = 0; pf_limits[i].name; i++) {
1776 if ((ret = pfctl_get_limit(pfh, pf_limits[i].index, &limit)) != 0)
1777 errc(1, ret, "DIOCGETLIMIT");
1778 printf("%-13s ", pf_limits[i].name);
1779 if (limit == UINT_MAX)
1780 printf("unlimited\n");
1781 else
1782 printf("hard limit %8u\n", limit);
1783 }
1784 return (0);
1785 }
1786
1787 void
pfctl_read_limits(struct pfctl_handle * h)1788 pfctl_read_limits(struct pfctl_handle *h)
1789 {
1790 int i;
1791
1792 for (i = 0; pf_limits[i].name; i++) {
1793 if (pfctl_get_limit(h, i, &limit_curr[i]))
1794 err(1, "DIOCGETLIMIT");
1795 }
1796 }
1797
1798 void
pfctl_restore_limits(void)1799 pfctl_restore_limits(void)
1800 {
1801 int i;
1802
1803 if (pfh == NULL)
1804 return;
1805
1806 for (i = 0; pf_limits[i].name; i++) {
1807 if (pfctl_set_limit(pfh, i, limit_curr[i]))
1808 warn("DIOCSETLIMIT (%s)", pf_limits[i].name);
1809 }
1810 }
1811
1812 void
pfctl_show_creators(int opts)1813 pfctl_show_creators(int opts)
1814 {
1815 int ret;
1816 uint32_t creators[16];
1817 size_t count = nitems(creators);
1818
1819 ret = pfctl_get_creatorids(pfh, creators, &count);
1820 if (ret != 0)
1821 errx(ret, "Failed to retrieve creators");
1822
1823 printf("Creator IDs:\n");
1824 for (size_t i = 0; i < count; i++)
1825 printf("%08x\n", creators[i]);
1826 }
1827
1828 /* callbacks for rule/nat/rdr/addr */
1829 int
pfctl_add_pool(struct pfctl * pf,struct pfctl_pool * p,int which)1830 pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, int which)
1831 {
1832 struct pfctl_pooladdr *pa;
1833 int ret;
1834
1835 TAILQ_FOREACH(pa, &p->list, entries) {
1836 memcpy(&pf->paddr.addr, pa, sizeof(struct pfctl_pooladdr));
1837 pf->paddr.af = pa->af;
1838 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1839 if ((ret = pfctl_add_addr(pf->h, &pf->paddr, which)) != 0)
1840 errc(1, ret, "DIOCADDADDR");
1841 }
1842 }
1843 return (0);
1844 }
1845
1846 void
pfctl_init_rule(struct pfctl_rule * r)1847 pfctl_init_rule(struct pfctl_rule *r)
1848 {
1849 memset(r, 0, sizeof(struct pfctl_rule));
1850 TAILQ_INIT(&(r->rdr.list));
1851 TAILQ_INIT(&(r->nat.list));
1852 TAILQ_INIT(&(r->route.list));
1853 }
1854
1855 int
pfctl_append_rule(struct pfctl * pf,struct pfctl_rule * r,const char * anchor_call)1856 pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r,
1857 const char *anchor_call)
1858 {
1859 u_int8_t rs_num;
1860 struct pfctl_rule *rule;
1861 struct pfctl_ruleset *rs;
1862 char *p;
1863
1864 rs_num = pf_get_ruleset_number(r->action);
1865 if (rs_num == PF_RULESET_MAX)
1866 errx(1, "Invalid rule type %d", r->action);
1867
1868 rs = &pf->anchor->ruleset;
1869
1870 if (anchor_call[0] && r->anchor == NULL) {
1871 /*
1872 * Don't make non-brace anchors part of the main anchor pool.
1873 */
1874 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1875 err(1, "pfctl_append_rule: calloc");
1876
1877 pf_init_ruleset(&r->anchor->ruleset);
1878 r->anchor->ruleset.anchor = r->anchor;
1879 if (strlcpy(r->anchor->path, anchor_call,
1880 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1881 errx(1, "pfctl_append_rule: strlcpy");
1882 if ((p = strrchr(anchor_call, '/')) != NULL) {
1883 if (!strlen(p))
1884 err(1, "pfctl_append_rule: bad anchor name %s",
1885 anchor_call);
1886 } else
1887 p = (char *)anchor_call;
1888 if (strlcpy(r->anchor->name, p,
1889 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1890 errx(1, "pfctl_append_rule: strlcpy");
1891 }
1892
1893 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1894 err(1, "calloc");
1895 bcopy(r, rule, sizeof(*rule));
1896 TAILQ_INIT(&rule->rdr.list);
1897 pfctl_move_pool(&r->rdr, &rule->rdr);
1898 TAILQ_INIT(&rule->nat.list);
1899 pfctl_move_pool(&r->nat, &rule->nat);
1900 TAILQ_INIT(&rule->route.list);
1901 pfctl_move_pool(&r->route, &rule->route);
1902
1903 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
1904 return (0);
1905 }
1906
1907 int
pfctl_append_eth_rule(struct pfctl * pf,struct pfctl_eth_rule * r,const char * anchor_call)1908 pfctl_append_eth_rule(struct pfctl *pf, struct pfctl_eth_rule *r,
1909 const char *anchor_call)
1910 {
1911 struct pfctl_eth_rule *rule;
1912 struct pfctl_eth_ruleset *rs;
1913 char *p;
1914
1915 rs = &pf->eanchor->ruleset;
1916
1917 if (anchor_call[0] && r->anchor == NULL) {
1918 /*
1919 * Don't make non-brace anchors part of the main anchor pool.
1920 */
1921 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1922 err(1, "pfctl_append_rule: calloc");
1923
1924 pf_init_eth_ruleset(&r->anchor->ruleset);
1925 r->anchor->ruleset.anchor = r->anchor;
1926 if (strlcpy(r->anchor->path, anchor_call,
1927 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1928 errx(1, "pfctl_append_rule: strlcpy");
1929 if ((p = strrchr(anchor_call, '/')) != NULL) {
1930 if (!strlen(p))
1931 err(1, "pfctl_append_eth_rule: bad anchor name %s",
1932 anchor_call);
1933 } else
1934 p = (char *)anchor_call;
1935 if (strlcpy(r->anchor->name, p,
1936 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1937 errx(1, "pfctl_append_eth_rule: strlcpy");
1938 }
1939
1940 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1941 err(1, "calloc");
1942 bcopy(r, rule, sizeof(*rule));
1943
1944 TAILQ_INSERT_TAIL(&rs->rules, rule, entries);
1945 return (0);
1946 }
1947
1948 int
pfctl_eth_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_eth_anchor * a)1949 pfctl_eth_ruleset_trans(struct pfctl *pf, char *path,
1950 struct pfctl_eth_anchor *a)
1951 {
1952 int osize = pf->trans->pfrb_size;
1953
1954 if ((pf->loadopt & PFCTL_FLAG_ETH) != 0) {
1955 if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path))
1956 return (1);
1957 }
1958 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1959 return (5);
1960
1961 return (0);
1962 }
1963
1964 int
pfctl_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_anchor * a,bool do_eth)1965 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pfctl_anchor *a, bool do_eth)
1966 {
1967 int osize = pf->trans->pfrb_size;
1968
1969 if ((pf->loadopt & PFCTL_FLAG_ETH) != 0 && do_eth) {
1970 if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path))
1971 return (1);
1972 }
1973 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) {
1974 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) ||
1975 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) ||
1976 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path))
1977 return (1);
1978 }
1979 if (a == pf->astack[0] && ((altqsupport &&
1980 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) {
1981 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path))
1982 return (2);
1983 }
1984 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) {
1985 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) ||
1986 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path))
1987 return (3);
1988 }
1989 if (pf->loadopt & PFCTL_FLAG_TABLE)
1990 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path))
1991 return (4);
1992 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1993 return (5);
1994
1995 return (0);
1996 }
1997
1998 int
pfctl_load_eth_ruleset(struct pfctl * pf,char * path,struct pfctl_eth_ruleset * rs,int depth)1999 pfctl_load_eth_ruleset(struct pfctl *pf, char *path,
2000 struct pfctl_eth_ruleset *rs, int depth)
2001 {
2002 struct pfctl_eth_rule *r;
2003 int error, len = strlen(path);
2004 int brace = 0;
2005
2006 pf->eanchor = rs->anchor;
2007 if (path[0])
2008 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->eanchor->name);
2009 else
2010 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->eanchor->name);
2011
2012 if (depth) {
2013 if (TAILQ_FIRST(&rs->rules) != NULL) {
2014 brace++;
2015 if (pf->opts & PF_OPT_VERBOSE)
2016 printf(" {\n");
2017 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
2018 (error = pfctl_eth_ruleset_trans(pf,
2019 path, rs->anchor))) {
2020 printf("pfctl_load_eth_rulesets: "
2021 "pfctl_eth_ruleset_trans %d\n", error);
2022 goto error;
2023 }
2024 } else if (pf->opts & PF_OPT_VERBOSE)
2025 printf("\n");
2026 }
2027
2028 while ((r = TAILQ_FIRST(&rs->rules)) != NULL) {
2029 TAILQ_REMOVE(&rs->rules, r, entries);
2030
2031 error = pfctl_load_eth_rule(pf, path, r, depth);
2032 if (error)
2033 return (error);
2034
2035 if (r->anchor) {
2036 if ((error = pfctl_load_eth_ruleset(pf, path,
2037 &r->anchor->ruleset, depth + 1)))
2038 return (error);
2039 } else if (pf->opts & PF_OPT_VERBOSE)
2040 printf("\n");
2041 free(r);
2042 }
2043 if (brace && pf->opts & PF_OPT_VERBOSE) {
2044 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
2045 printf("}\n");
2046 }
2047 path[len] = '\0';
2048
2049 return (0);
2050 error:
2051 path[len] = '\0';
2052 return (error);
2053 }
2054
2055 int
pfctl_load_eth_rule(struct pfctl * pf,char * path,struct pfctl_eth_rule * r,int depth)2056 pfctl_load_eth_rule(struct pfctl *pf, char *path, struct pfctl_eth_rule *r,
2057 int depth)
2058 {
2059 char *name;
2060 char anchor[PF_ANCHOR_NAME_SIZE];
2061 int len = strlen(path);
2062 int ret;
2063
2064 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
2065 errx(1, "pfctl_load_eth_rule: strlcpy");
2066
2067 if (r->anchor) {
2068 if (r->anchor->match) {
2069 if (path[0])
2070 snprintf(&path[len], MAXPATHLEN - len,
2071 "/%s", r->anchor->name);
2072 else
2073 snprintf(&path[len], MAXPATHLEN - len,
2074 "%s", r->anchor->name);
2075 name = r->anchor->name;
2076 } else
2077 name = r->anchor->path;
2078 } else
2079 name = "";
2080
2081 if ((pf->opts & PF_OPT_NOACTION) == 0)
2082 if ((ret = pfctl_add_eth_rule(pf->dev, r, anchor, name,
2083 pf->eth_ticket)) != 0)
2084 errc(1, ret, "DIOCADDETHRULENV");
2085
2086 if (pf->opts & PF_OPT_VERBOSE) {
2087 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
2088 print_eth_rule(r, r->anchor ? r->anchor->name : "",
2089 pf->opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG));
2090 }
2091
2092 path[len] = '\0';
2093
2094 return (0);
2095 }
2096
2097 static int
pfctl_load_tables(struct pfctl * pf,char * path,struct pfctl_anchor * a,int rs_num)2098 pfctl_load_tables(struct pfctl *pf, char *path, struct pfctl_anchor *a,
2099 int rs_num)
2100 {
2101 struct pfr_ktable *kt, *ktw;
2102 struct pfr_uktable *ukt;
2103 char anchor_path[PF_ANCHOR_MAXPATH];
2104 int e;
2105
2106 RB_FOREACH_SAFE(kt, pfr_ktablehead, &pfr_ktables, ktw) {
2107 if (strcmp(kt->pfrkt_anchor, a->path) != 0)
2108 continue;
2109
2110 if (path != NULL && *path) {
2111 strlcpy(anchor_path, kt->pfrkt_anchor,
2112 sizeof(anchor_path));
2113 snprintf(kt->pfrkt_anchor, PF_ANCHOR_MAXPATH, "%s/%s",
2114 path, anchor_path);
2115 }
2116 ukt = (struct pfr_uktable *)kt;
2117 e = pfr_ina_define(&ukt->pfrukt_t, ukt->pfrukt_addrs.pfrb_caddr,
2118 ukt->pfrukt_addrs.pfrb_size, NULL, NULL,
2119 pf->anchor->ruleset.tticket,
2120 ukt->pfrukt_init_addr ? PFR_FLAG_ADDRSTOO : 0);
2121 if (e != 0)
2122 err(1, "%s pfr_ina_define() %s@%s", __func__,
2123 kt->pfrkt_name, kt->pfrkt_anchor);
2124 RB_REMOVE(pfr_ktablehead, &pfr_ktables, kt);
2125 pfr_buf_clear(&ukt->pfrukt_addrs);
2126 free(ukt);
2127 }
2128
2129 return (0);
2130 }
2131
2132 int
pfctl_load_ruleset(struct pfctl * pf,char * path,struct pfctl_ruleset * rs,int rs_num,int depth)2133 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pfctl_ruleset *rs,
2134 int rs_num, int depth)
2135 {
2136 struct pfctl_rule *r;
2137 int error, len = strlen(path);
2138 int brace = 0;
2139
2140 pf->anchor = rs->anchor;
2141
2142 if (path[0])
2143 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name);
2144 else
2145 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name);
2146
2147 if (depth) {
2148 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) {
2149 brace++;
2150 if (pf->opts & PF_OPT_VERBOSE)
2151 printf(" {\n");
2152 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
2153 (error = pfctl_ruleset_trans(pf,
2154 path, rs->anchor, false))) {
2155 printf("%s: "
2156 "pfctl_ruleset_trans %d\n", __func__, error);
2157 goto error;
2158 }
2159 } else if (pf->opts & PF_OPT_VERBOSE)
2160 printf("\n");
2161 }
2162
2163 if (pf->optimize && rs_num == PF_RULESET_FILTER)
2164 pfctl_optimize_ruleset(pf, rs);
2165
2166 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) {
2167 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries);
2168
2169 for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++)
2170 expand_label(r->label[i], PF_RULE_LABEL_SIZE, r);
2171 expand_label(r->tagname, PF_TAG_NAME_SIZE, r);
2172 expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r);
2173
2174 if ((error = pfctl_load_rule(pf, path, r, depth)))
2175 goto error;
2176 if (r->anchor) {
2177 if ((error = pfctl_load_ruleset(pf, path,
2178 &r->anchor->ruleset, rs_num, depth + 1)))
2179 goto error;
2180 if ((error = pfctl_load_tables(pf, path, r->anchor, rs_num)))
2181 goto error;
2182 } else if (pf->opts & PF_OPT_VERBOSE)
2183 printf("\n");
2184 free(r);
2185 }
2186 if (brace && pf->opts & PF_OPT_VERBOSE) {
2187 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
2188 printf("}\n");
2189 }
2190 path[len] = '\0';
2191 return (0);
2192
2193 error:
2194 path[len] = '\0';
2195 return (error);
2196
2197 }
2198
2199 int
pfctl_load_rule(struct pfctl * pf,char * path,struct pfctl_rule * r,int depth)2200 pfctl_load_rule(struct pfctl *pf, char *path, struct pfctl_rule *r, int depth)
2201 {
2202 u_int8_t rs_num = pf_get_ruleset_number(r->action);
2203 char *name;
2204 char anchor[PF_ANCHOR_NAME_SIZE];
2205 int len = strlen(path);
2206 int error;
2207 bool was_present;
2208
2209 /* set up anchor before adding to path for anchor_call */
2210 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2211 if (pf->trans == NULL)
2212 errx(1, "pfctl_load_rule: no transaction");
2213 pf->anchor->ruleset.tticket = pfctl_get_ticket(pf->trans, rs_num, path);
2214 }
2215 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
2216 errx(1, "pfctl_load_rule: strlcpy");
2217
2218 if (r->anchor) {
2219 if (r->anchor->match) {
2220 if (path[0])
2221 snprintf(&path[len], MAXPATHLEN - len,
2222 "/%s", r->anchor->name);
2223 else
2224 snprintf(&path[len], MAXPATHLEN - len,
2225 "%s", r->anchor->name);
2226 name = r->anchor->name;
2227 } else
2228 name = r->anchor->path;
2229 } else
2230 name = "";
2231
2232 was_present = false;
2233 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2234 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2235 if ((error = pfctl_begin_addrs(pf->h,
2236 &pf->paddr.ticket)) != 0)
2237 errc(1, error, "DIOCBEGINADDRS");
2238 }
2239
2240 if (pfctl_add_pool(pf, &r->rdr, PF_RDR))
2241 return (1);
2242 if (pfctl_add_pool(pf, &r->nat, PF_NAT))
2243 return (1);
2244 if (pfctl_add_pool(pf, &r->route, PF_RT))
2245 return (1);
2246 error = pfctl_add_rule_h(pf->h, r, anchor, name, pf->anchor->ruleset.tticket,
2247 pf->paddr.ticket);
2248 switch (error) {
2249 case 0:
2250 /* things worked, do nothing */
2251 break;
2252 case EEXIST:
2253 /* an identical rule is already present */
2254 was_present = true;
2255 break;
2256 default:
2257 errc(1, error, "DIOCADDRULE");
2258 }
2259 }
2260
2261 if (pf->opts & PF_OPT_VERBOSE) {
2262 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
2263 print_rule(r, name,
2264 pf->opts & PF_OPT_VERBOSE2,
2265 pf->opts & PF_OPT_NUMERIC);
2266 if (was_present)
2267 printf(" -- rule was already present");
2268 }
2269 path[len] = '\0';
2270 pfctl_clear_pool(&r->rdr);
2271 pfctl_clear_pool(&r->nat);
2272 return (0);
2273 }
2274
2275 int
pfctl_add_altq(struct pfctl * pf,struct pf_altq * a)2276 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a)
2277 {
2278 if (altqsupport &&
2279 (loadopt & PFCTL_FLAG_ALTQ) != 0) {
2280 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq));
2281 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2282 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) {
2283 if (errno == ENXIO)
2284 errx(1, "qtype not configured");
2285 else if (errno == ENODEV)
2286 errx(1, "%s: driver does not support "
2287 "altq", a->ifname);
2288 else
2289 err(1, "DIOCADDALTQ");
2290 }
2291 }
2292 pfaltq_store(&pf->paltq->altq);
2293 }
2294 return (0);
2295 }
2296
2297 int
pfctl_rules(int dev,char * filename,int opts,int optimize,char * anchorname,struct pfr_buffer * trans)2298 pfctl_rules(int dev, char *filename, int opts, int optimize,
2299 char *anchorname, struct pfr_buffer *trans)
2300 {
2301 #define ERR(...) do { warn(__VA_ARGS__); goto _error; } while(0)
2302 #define ERRX(...) do { warnx(__VA_ARGS__); goto _error; } while(0)
2303
2304 struct pfr_buffer *t, buf;
2305 struct pfioc_altq pa;
2306 struct pfctl pf;
2307 struct pfctl_ruleset *rs;
2308 struct pfctl_eth_ruleset *ethrs;
2309 struct pfr_table trs;
2310 char *path = NULL;
2311 int osize;
2312
2313 RB_INIT(&pf_anchors);
2314 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
2315 pf_init_ruleset(&pf_main_anchor.ruleset);
2316 memset(&pf, 0, sizeof(pf));
2317 memset(&trs, 0, sizeof(trs));
2318 pf_main_anchor.ruleset.anchor = &pf_main_anchor;
2319
2320 memset(&pf_eth_main_anchor, 0, sizeof(pf_eth_main_anchor));
2321 pf_init_eth_ruleset(&pf_eth_main_anchor.ruleset);
2322 pf_eth_main_anchor.ruleset.anchor = &pf_eth_main_anchor;
2323
2324 if (trans == NULL) {
2325 bzero(&buf, sizeof(buf));
2326 buf.pfrb_type = PFRB_TRANS;
2327 pf.trans = &buf;
2328 t = &buf;
2329 osize = 0;
2330 } else {
2331 t = trans;
2332 osize = t->pfrb_size;
2333 }
2334
2335 memset(&pa, 0, sizeof(pa));
2336 pa.version = PFIOC_ALTQ_VERSION;
2337 memset(&pf, 0, sizeof(pf));
2338 memset(&trs, 0, sizeof(trs));
2339 if ((path = calloc(1, MAXPATHLEN)) == NULL)
2340 ERRX("%s: calloc", __func__);
2341 if (strlcpy(trs.pfrt_anchor, anchorname,
2342 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
2343 ERRX("%s: strlcpy", __func__);
2344 pf.dev = dev;
2345 pf.h = pfh;
2346 pf.opts = opts;
2347 pf.optimize = optimize;
2348 pf.loadopt = loadopt;
2349
2350 /* non-brace anchor, create without resolving the path */
2351 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
2352 ERRX("%s: calloc", __func__);
2353 rs = &pf.anchor->ruleset;
2354 pf_init_ruleset(rs);
2355 rs->anchor = pf.anchor;
2356 if (strlcpy(pf.anchor->path, anchorname,
2357 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path))
2358 errx(1, "%s: strlcpy", __func__);
2359 if (strlcpy(pf.anchor->name, anchorname,
2360 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
2361 errx(1, "%s: strlcpy", __func__);
2362
2363
2364 pf.astack[0] = pf.anchor;
2365 pf.asd = 0;
2366 if (anchorname[0])
2367 pf.loadopt &= ~PFCTL_FLAG_ALTQ;
2368 pf.paltq = &pa;
2369 pf.trans = t;
2370 pfctl_init_options(&pf);
2371
2372 /* Set up ethernet anchor */
2373 if ((pf.eanchor = calloc(1, sizeof(*pf.eanchor))) == NULL)
2374 ERRX("%s: calloc", __func__);
2375
2376 if (strlcpy(pf.eanchor->path, anchorname,
2377 sizeof(pf.eanchor->path)) >= sizeof(pf.eanchor->path))
2378 errx(1, "%s: strlcpy", __func__);
2379 if (strlcpy(pf.eanchor->name, anchorname,
2380 sizeof(pf.eanchor->name)) >= sizeof(pf.eanchor->name))
2381 errx(1, "%s: strlcpy", __func__);
2382
2383 ethrs = &pf.eanchor->ruleset;
2384 pf_init_eth_ruleset(ethrs);
2385 ethrs->anchor = pf.eanchor;
2386 pf.eastack[0] = pf.eanchor;
2387
2388 if ((opts & PF_OPT_NOACTION) == 0) {
2389 /*
2390 * XXX For the time being we need to open transactions for
2391 * the main ruleset before parsing, because tables are still
2392 * loaded at parse time.
2393 */
2394 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor, true))
2395 ERRX("%s", __func__);
2396 if (pf.loadopt & PFCTL_FLAG_ETH)
2397 pf.eth_ticket = pfctl_get_ticket(t, PF_RULESET_ETH, anchorname);
2398 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
2399 pa.ticket =
2400 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname);
2401 if (pf.loadopt & PFCTL_FLAG_TABLE)
2402 pf.astack[0]->ruleset.tticket =
2403 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname);
2404 }
2405
2406 if (parse_config(filename, &pf) < 0) {
2407 if ((opts & PF_OPT_NOACTION) == 0)
2408 ERRX("Syntax error in config file: "
2409 "pf rules not loaded");
2410 else
2411 goto _error;
2412 }
2413 if (loadopt & PFCTL_FLAG_OPTION)
2414 pfctl_adjust_skip_ifaces(&pf);
2415
2416 if ((pf.loadopt & PFCTL_FLAG_FILTER &&
2417 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) ||
2418 (pf.loadopt & PFCTL_FLAG_ETH &&
2419 (pfctl_load_eth_ruleset(&pf, path, ethrs, 0))) ||
2420 (pf.loadopt & PFCTL_FLAG_NAT &&
2421 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) ||
2422 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) ||
2423 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) ||
2424 (pf.loadopt & PFCTL_FLAG_FILTER &&
2425 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) {
2426 if ((opts & PF_OPT_NOACTION) == 0)
2427 ERRX("Unable to load rules into kernel");
2428 else
2429 goto _error;
2430 }
2431
2432 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
2433 if (check_commit_altq(dev, opts) != 0)
2434 ERRX("errors in altq config");
2435
2436 if (trans == NULL) {
2437 /* process "load anchor" directives */
2438 if (pfctl_load_anchors(dev, &pf) == -1)
2439 ERRX("load anchors");
2440
2441 if ((opts & PF_OPT_NOACTION) == 0) {
2442 if (!anchorname[0] && pfctl_load_options(&pf))
2443 goto _error;
2444 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
2445 ERR("DIOCXCOMMIT");
2446 }
2447 }
2448 free(path);
2449 return (0);
2450
2451 _error:
2452 if (trans == NULL) { /* main ruleset */
2453 if ((opts & PF_OPT_NOACTION) == 0)
2454 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
2455 err(1, "DIOCXROLLBACK");
2456 exit(1);
2457 } else { /* sub ruleset */
2458 free(path);
2459 return (-1);
2460 }
2461
2462 #undef ERR
2463 #undef ERRX
2464 }
2465
2466 FILE *
pfctl_fopen(const char * name,const char * mode)2467 pfctl_fopen(const char *name, const char *mode)
2468 {
2469 struct stat st;
2470 FILE *fp;
2471
2472 fp = fopen(name, mode);
2473 if (fp == NULL)
2474 return (NULL);
2475 if (fstat(fileno(fp), &st)) {
2476 fclose(fp);
2477 return (NULL);
2478 }
2479 if (S_ISDIR(st.st_mode)) {
2480 fclose(fp);
2481 errno = EISDIR;
2482 return (NULL);
2483 }
2484 return (fp);
2485 }
2486
2487 void
pfctl_init_options(struct pfctl * pf)2488 pfctl_init_options(struct pfctl *pf)
2489 {
2490
2491 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
2492 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
2493 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
2494 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
2495 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
2496 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
2497 pf->timeout[PFTM_SCTP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
2498 pf->timeout[PFTM_SCTP_OPENING] = PFTM_TCP_OPENING_VAL;
2499 pf->timeout[PFTM_SCTP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
2500 pf->timeout[PFTM_SCTP_CLOSING] = PFTM_TCP_CLOSING_VAL;
2501 pf->timeout[PFTM_SCTP_CLOSED] = PFTM_TCP_CLOSED_VAL;
2502 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
2503 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
2504 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
2505 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
2506 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
2507 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
2508 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
2509 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
2510 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
2511 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
2512 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
2513 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
2514 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
2515 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
2516
2517 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
2518 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
2519
2520 pf->limit[PF_LIMIT_SRC_NODES] = (limit_curr[PF_LIMIT_SRC_NODES] == 0) ?
2521 PFSNODE_HIWAT : limit_curr[PF_LIMIT_SRC_NODES];
2522 pf->limit[PF_LIMIT_TABLE_ENTRIES] =
2523 (limit_curr[PF_LIMIT_TABLE_ENTRIES] == 0) ?
2524 PFR_KENTRY_HIWAT : limit_curr[PF_LIMIT_TABLE_ENTRIES];
2525 pf->limit[PF_LIMIT_ANCHORS] = (limit_curr[PF_LIMIT_ANCHORS] == 0) ?
2526 PF_ANCHOR_HIWAT : limit_curr[PF_LIMIT_ANCHORS];
2527
2528 pf->debug = PF_DEBUG_URGENT;
2529 pf->reassemble = 0;
2530
2531 pf->syncookies = false;
2532 pf->syncookieswat[0] = PF_SYNCOOKIES_LOWATPCT;
2533 pf->syncookieswat[1] = PF_SYNCOOKIES_HIWATPCT;
2534 }
2535
2536 int
pfctl_load_options(struct pfctl * pf)2537 pfctl_load_options(struct pfctl *pf)
2538 {
2539 int i, error = 0;
2540
2541 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2542 return (0);
2543
2544 /* load limits */
2545 for (i = 0; i < PF_LIMIT_MAX; i++) {
2546 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i])
2547 continue;
2548 if (pfctl_load_limit(pf, i, pf->limit[i]))
2549 error = 1;
2550 }
2551
2552 /*
2553 * If we've set the states limit, but haven't explicitly set adaptive
2554 * timeouts, do it now with a start of 60% and end of 120%.
2555 */
2556 if (pf->limit_set[PF_LIMIT_STATES] &&
2557 !pf->timeout_set[PFTM_ADAPTIVE_START] &&
2558 !pf->timeout_set[PFTM_ADAPTIVE_END]) {
2559 pf->timeout[PFTM_ADAPTIVE_START] =
2560 (pf->limit[PF_LIMIT_STATES] / 10) * 6;
2561 pf->timeout_set[PFTM_ADAPTIVE_START] = 1;
2562 pf->timeout[PFTM_ADAPTIVE_END] =
2563 (pf->limit[PF_LIMIT_STATES] / 10) * 12;
2564 pf->timeout_set[PFTM_ADAPTIVE_END] = 1;
2565 }
2566
2567 /* load timeouts */
2568 for (i = 0; i < PFTM_MAX; i++) {
2569 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i])
2570 continue;
2571 if (pfctl_load_timeout(pf, i, pf->timeout[i]))
2572 error = 1;
2573 }
2574
2575 /* load debug */
2576 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
2577 if (pfctl_load_debug(pf, pf->debug))
2578 error = 1;
2579
2580 /* load logif */
2581 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
2582 if (pfctl_load_logif(pf, pf->ifname))
2583 error = 1;
2584
2585 /* load hostid */
2586 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
2587 if (pfctl_load_hostid(pf, pf->hostid))
2588 error = 1;
2589
2590 /* load reassembly settings */
2591 if (!(pf->opts & PF_OPT_MERGE) || pf->reass_set)
2592 if (pfctl_load_reassembly(pf, pf->reassemble))
2593 error = 1;
2594
2595 /* load keepcounters */
2596 if (pfctl_set_keepcounters(pf->dev, pf->keep_counters))
2597 error = 1;
2598
2599 /* load syncookies settings */
2600 if (pfctl_load_syncookies(pf, pf->syncookies))
2601 error = 1;
2602
2603 return (error);
2604 }
2605
2606 int
pfctl_apply_limit(struct pfctl * pf,const char * opt,unsigned int limit)2607 pfctl_apply_limit(struct pfctl *pf, const char *opt, unsigned int limit)
2608 {
2609 int i;
2610
2611
2612 for (i = 0; pf_limits[i].name; i++) {
2613 if (strcasecmp(opt, pf_limits[i].name) == 0) {
2614 pf->limit[pf_limits[i].index] = limit;
2615 pf->limit_set[pf_limits[i].index] = 1;
2616 break;
2617 }
2618 }
2619 if (pf_limits[i].name == NULL) {
2620 warnx("Bad pool name.");
2621 return (1);
2622 }
2623
2624 if (pf->opts & PF_OPT_VERBOSE)
2625 printf("set limit %s %d\n", opt, limit);
2626
2627 if ((pf->opts & PF_OPT_NOACTION) == 0)
2628 pfctl_load_options(pf);
2629
2630 return (0);
2631 }
2632
2633 int
pfctl_load_limit(struct pfctl * pf,unsigned int index,unsigned int limit)2634 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
2635 {
2636 if (pfctl_set_limit(pf->h, index, limit)) {
2637 if (errno == EBUSY)
2638 warnx("Current pool size exceeds requested %s limit %u",
2639 pf_limits[index].name, limit);
2640 else
2641 warnx("Cannot set %s limit to %u",
2642 pf_limits[index].name, limit);
2643 return (1);
2644 }
2645 return (0);
2646 }
2647
2648 int
pfctl_apply_timeout(struct pfctl * pf,const char * opt,int seconds,int quiet)2649 pfctl_apply_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet)
2650 {
2651 int i;
2652
2653 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2654 return (0);
2655
2656 for (i = 0; pf_timeouts[i].name; i++) {
2657 if (strcasecmp(opt, pf_timeouts[i].name) == 0) {
2658 pf->timeout[pf_timeouts[i].timeout] = seconds;
2659 pf->timeout_set[pf_timeouts[i].timeout] = 1;
2660 break;
2661 }
2662 }
2663
2664 if (pf_timeouts[i].name == NULL) {
2665 warnx("Bad timeout name.");
2666 return (1);
2667 }
2668
2669
2670 if (pf->opts & PF_OPT_VERBOSE && ! quiet)
2671 printf("set timeout %s %d\n", opt, seconds);
2672
2673 return (0);
2674 }
2675
2676 int
pfctl_load_timeout(struct pfctl * pf,unsigned int timeout,unsigned int seconds)2677 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds)
2678 {
2679 if (pfctl_set_timeout(pf->h, timeout, seconds)) {
2680 warnx("DIOCSETTIMEOUT");
2681 return (1);
2682 }
2683 return (0);
2684 }
2685
2686 int
pfctl_set_reassembly(struct pfctl * pf,int on,int nodf)2687 pfctl_set_reassembly(struct pfctl *pf, int on, int nodf)
2688 {
2689 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2690 return (0);
2691
2692 pf->reass_set = 1;
2693 if (on) {
2694 pf->reassemble = PF_REASS_ENABLED;
2695 if (nodf)
2696 pf->reassemble |= PF_REASS_NODF;
2697 } else {
2698 pf->reassemble = 0;
2699 }
2700
2701 if (pf->opts & PF_OPT_VERBOSE)
2702 printf("set reassemble %s %s\n", on ? "yes" : "no",
2703 nodf ? "no-df" : "");
2704
2705 return (0);
2706 }
2707
2708 int
pfctl_set_optimization(struct pfctl * pf,const char * opt)2709 pfctl_set_optimization(struct pfctl *pf, const char *opt)
2710 {
2711 const struct pf_hint *hint;
2712 int i, r;
2713
2714 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2715 return (0);
2716
2717 for (i = 0; pf_hints[i].name; i++)
2718 if (strcasecmp(opt, pf_hints[i].name) == 0)
2719 break;
2720
2721 hint = pf_hints[i].hint;
2722 if (hint == NULL) {
2723 warnx("invalid state timeouts optimization");
2724 return (1);
2725 }
2726
2727 for (i = 0; hint[i].name; i++)
2728 if ((r = pfctl_apply_timeout(pf, hint[i].name,
2729 hint[i].timeout, 1)))
2730 return (r);
2731
2732 if (pf->opts & PF_OPT_VERBOSE)
2733 printf("set optimization %s\n", opt);
2734
2735 return (0);
2736 }
2737
2738 int
pfctl_set_logif(struct pfctl * pf,char * ifname)2739 pfctl_set_logif(struct pfctl *pf, char *ifname)
2740 {
2741
2742 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2743 return (0);
2744
2745 if (!strcmp(ifname, "none")) {
2746 free(pf->ifname);
2747 pf->ifname = NULL;
2748 } else {
2749 pf->ifname = strdup(ifname);
2750 if (!pf->ifname)
2751 errx(1, "pfctl_set_logif: strdup");
2752 }
2753 pf->ifname_set = 1;
2754
2755 if (pf->opts & PF_OPT_VERBOSE)
2756 printf("set loginterface %s\n", ifname);
2757
2758 return (0);
2759 }
2760
2761 int
pfctl_load_logif(struct pfctl * pf,char * ifname)2762 pfctl_load_logif(struct pfctl *pf, char *ifname)
2763 {
2764 if (ifname != NULL && strlen(ifname) >= IFNAMSIZ) {
2765 warnx("pfctl_load_logif: strlcpy");
2766 return (1);
2767 }
2768 return (pfctl_set_statusif(pfh, ifname ? ifname : ""));
2769 }
2770
2771 void
pfctl_set_hostid(struct pfctl * pf,u_int32_t hostid)2772 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
2773 {
2774 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2775 return;
2776
2777 HTONL(hostid);
2778
2779 pf->hostid = hostid;
2780 pf->hostid_set = 1;
2781
2782 if (pf->opts & PF_OPT_VERBOSE)
2783 printf("set hostid 0x%08x\n", ntohl(hostid));
2784 }
2785
2786 int
pfctl_load_hostid(struct pfctl * pf,u_int32_t hostid)2787 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid)
2788 {
2789 if (ioctl(dev, DIOCSETHOSTID, &hostid)) {
2790 warnx("DIOCSETHOSTID");
2791 return (1);
2792 }
2793 return (0);
2794 }
2795
2796 int
pfctl_load_reassembly(struct pfctl * pf,u_int32_t reassembly)2797 pfctl_load_reassembly(struct pfctl *pf, u_int32_t reassembly)
2798 {
2799 if (ioctl(dev, DIOCSETREASS, &reassembly)) {
2800 warnx("DIOCSETREASS");
2801 return (1);
2802 }
2803 return (0);
2804 }
2805
2806 int
pfctl_load_syncookies(struct pfctl * pf,u_int8_t val)2807 pfctl_load_syncookies(struct pfctl *pf, u_int8_t val)
2808 {
2809 struct pfctl_syncookies cookies;
2810
2811 bzero(&cookies, sizeof(cookies));
2812
2813 cookies.mode = val;
2814 cookies.lowwater = pf->syncookieswat[0];
2815 cookies.highwater = pf->syncookieswat[1];
2816
2817 if (pfctl_set_syncookies(dev, &cookies)) {
2818 warnx("DIOCSETSYNCOOKIES");
2819 return (1);
2820 }
2821 return (0);
2822 }
2823
2824 int
pfctl_cfg_syncookies(struct pfctl * pf,uint8_t val,struct pfctl_watermarks * w)2825 pfctl_cfg_syncookies(struct pfctl *pf, uint8_t val, struct pfctl_watermarks *w)
2826 {
2827 if (val != PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2828 warnx("syncookies start/end only apply to adaptive");
2829 return (1);
2830 }
2831 if (val == PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2832 if (!w->hi)
2833 w->hi = PF_SYNCOOKIES_HIWATPCT;
2834 if (!w->lo)
2835 w->lo = w->hi / 2;
2836 if (w->lo >= w->hi) {
2837 warnx("start must be higher than end");
2838 return (1);
2839 }
2840 pf->syncookieswat[0] = w->lo;
2841 pf->syncookieswat[1] = w->hi;
2842 pf->syncookieswat_set = 1;
2843 }
2844
2845 if (pf->opts & PF_OPT_VERBOSE) {
2846 if (val == PF_SYNCOOKIES_NEVER)
2847 printf("set syncookies never\n");
2848 else if (val == PF_SYNCOOKIES_ALWAYS)
2849 printf("set syncookies always\n");
2850 else if (val == PF_SYNCOOKIES_ADAPTIVE) {
2851 if (pf->syncookieswat_set)
2852 printf("set syncookies adaptive (start %u%%, "
2853 "end %u%%)\n", pf->syncookieswat[1],
2854 pf->syncookieswat[0]);
2855 else
2856 printf("set syncookies adaptive\n");
2857 } else { /* cannot happen */
2858 warnx("king bula ate all syncookies");
2859 return (1);
2860 }
2861 }
2862
2863 pf->syncookies = val;
2864 return (0);
2865 }
2866
2867 int
pfctl_do_set_debug(struct pfctl * pf,char * d)2868 pfctl_do_set_debug(struct pfctl *pf, char *d)
2869 {
2870 u_int32_t level;
2871 int ret;
2872
2873 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2874 return (0);
2875
2876 if (!strcmp(d, "none"))
2877 pf->debug = PF_DEBUG_NONE;
2878 else if (!strcmp(d, "urgent"))
2879 pf->debug = PF_DEBUG_URGENT;
2880 else if (!strcmp(d, "misc"))
2881 pf->debug = PF_DEBUG_MISC;
2882 else if (!strcmp(d, "loud"))
2883 pf->debug = PF_DEBUG_NOISY;
2884 else {
2885 warnx("unknown debug level \"%s\"", d);
2886 return (-1);
2887 }
2888
2889 pf->debug_set = 1;
2890 level = pf->debug;
2891
2892 if ((pf->opts & PF_OPT_NOACTION) == 0)
2893 if ((ret = pfctl_set_debug(pfh, level)) != 0)
2894 errc(1, ret, "DIOCSETDEBUG");
2895
2896 if (pf->opts & PF_OPT_VERBOSE)
2897 printf("set debug %s\n", d);
2898
2899 return (0);
2900 }
2901
2902 int
pfctl_load_debug(struct pfctl * pf,unsigned int level)2903 pfctl_load_debug(struct pfctl *pf, unsigned int level)
2904 {
2905 if (pfctl_set_debug(pf->h, level)) {
2906 warnx("DIOCSETDEBUG");
2907 return (1);
2908 }
2909 return (0);
2910 }
2911
2912 int
pfctl_set_interface_flags(struct pfctl * pf,char * ifname,int flags,int how)2913 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how)
2914 {
2915 struct pfioc_iface pi;
2916 struct node_host *h = NULL, *n = NULL;
2917
2918 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2919 return (0);
2920
2921 bzero(&pi, sizeof(pi));
2922
2923 pi.pfiio_flags = flags;
2924
2925 /* Make sure our cache matches the kernel. If we set or clear the flag
2926 * for a group this applies to all members. */
2927 h = ifa_grouplookup(ifname, 0);
2928 for (n = h; n != NULL; n = n->next)
2929 pfctl_set_interface_flags(pf, n->ifname, flags, how);
2930
2931 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >=
2932 sizeof(pi.pfiio_name))
2933 errx(1, "pfctl_set_interface_flags: strlcpy");
2934
2935 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2936 if (how == 0) {
2937 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi))
2938 pfctl_err(pf->opts, 1, "DIOCCLRIFFLAG");
2939 } else {
2940 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi))
2941 err(1, "DIOCSETIFFLAG");
2942 pfctl_check_skip_ifaces(ifname);
2943 }
2944 }
2945 return (0);
2946 }
2947
2948 void
pfctl_debug(int dev,u_int32_t level,int opts)2949 pfctl_debug(int dev, u_int32_t level, int opts)
2950 {
2951 int ret;
2952
2953 if ((ret = pfctl_set_debug(pfh, level)) != 0)
2954 errc(1, ret, "DIOCSETDEBUG");
2955 if ((opts & PF_OPT_QUIET) == 0) {
2956 fprintf(stderr, "debug level set to '");
2957 switch (level) {
2958 case PF_DEBUG_NONE:
2959 fprintf(stderr, "none");
2960 break;
2961 case PF_DEBUG_URGENT:
2962 fprintf(stderr, "urgent");
2963 break;
2964 case PF_DEBUG_MISC:
2965 fprintf(stderr, "misc");
2966 break;
2967 case PF_DEBUG_NOISY:
2968 fprintf(stderr, "loud");
2969 break;
2970 default:
2971 fprintf(stderr, "<invalid>");
2972 break;
2973 }
2974 fprintf(stderr, "'\n");
2975 }
2976 }
2977
2978 int
pfctl_test_altqsupport(int dev,int opts)2979 pfctl_test_altqsupport(int dev, int opts)
2980 {
2981 struct pfioc_altq pa;
2982
2983 pa.version = PFIOC_ALTQ_VERSION;
2984 if (ioctl(dev, DIOCGETALTQS, &pa)) {
2985 if (errno == ENODEV) {
2986 if (opts & PF_OPT_VERBOSE)
2987 fprintf(stderr, "No ALTQ support in kernel\n"
2988 "ALTQ related functions disabled\n");
2989 return (0);
2990 } else
2991 err(1, "DIOCGETALTQS");
2992 }
2993 return (1);
2994 }
2995
2996 int
pfctl_walk_show(int opts,struct pfioc_ruleset * pr,void * warg)2997 pfctl_walk_show(int opts, struct pfioc_ruleset *pr, void *warg)
2998 {
2999 if (pr->path[0]) {
3000 if (pr->path[0] != '_' || (opts & PF_OPT_VERBOSE))
3001 printf(" %s/%s\n", pr->path, pr->name);
3002 } else if (pr->name[0] != '_' || (opts & PF_OPT_VERBOSE))
3003 printf(" %s\n", pr->name);
3004
3005 return (0);
3006 }
3007
3008 int
pfctl_walk_get(int opts,struct pfioc_ruleset * pr,void * warg)3009 pfctl_walk_get(int opts, struct pfioc_ruleset *pr, void *warg)
3010 {
3011 struct pfr_anchoritem *pfra;
3012 struct pfr_anchors *anchors;
3013 int e;
3014
3015 anchors = (struct pfr_anchors *)warg;
3016
3017 pfra = malloc(sizeof(*pfra));
3018 if (pfra == NULL)
3019 err(1, "%s", __func__);
3020
3021 if (pr->path[0])
3022 e = asprintf(&pfra->pfra_anchorname, "%s/%s", pr->path,
3023 pr->name);
3024 else
3025 e = asprintf(&pfra->pfra_anchorname, "%s", pr->name);
3026
3027 if (e == -1)
3028 err(1, "%s", __func__);
3029
3030 SLIST_INSERT_HEAD(anchors, pfra, pfra_sle);
3031
3032 return (0);
3033 }
3034
3035 int
pfctl_walk_anchors(int dev,int opts,const char * anchor,int (walkf)(int,struct pfioc_ruleset *,void *),void * warg)3036 pfctl_walk_anchors(int dev, int opts, const char *anchor,
3037 int(walkf)(int, struct pfioc_ruleset *, void *), void *warg)
3038 {
3039 struct pfioc_ruleset pr;
3040 u_int32_t mnr, nr;
3041 int ret;
3042
3043 memset(&pr, 0, sizeof(pr));
3044 if ((ret = pfctl_get_rulesets(pfh, anchor, &mnr)) != 0)
3045 errx(1, "%s", pf_strerror(ret));
3046 for (nr = 0; nr < mnr; ++nr) {
3047 char sub[MAXPATHLEN];
3048
3049 if ((ret = pfctl_get_ruleset(pfh, anchor, nr, &pr)) != 0)
3050 errc(1, ret, "DIOCGETRULESET");
3051 if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
3052 continue;
3053 sub[0] = '\0';
3054 if (walkf(opts, &pr, warg))
3055 return (-1);
3056
3057 if (pr.path[0])
3058 snprintf(sub, sizeof(sub), "%s/%s", pr.path, pr.name);
3059 else
3060 snprintf(sub, sizeof(sub), "%s", pr.name);
3061 if (pfctl_walk_anchors(dev, opts, sub, walkf, warg))
3062 return (-1);
3063 }
3064 return (0);
3065 }
3066
3067 int
pfctl_show_anchors(int dev,int opts,char * anchor)3068 pfctl_show_anchors(int dev, int opts, char *anchor)
3069 {
3070 return (
3071 pfctl_walk_anchors(dev, opts, anchor, pfctl_walk_show, NULL));
3072 }
3073
3074 struct pfr_anchors *
pfctl_get_anchors(int dev,const char * anchor,int opts)3075 pfctl_get_anchors(int dev, const char *anchor, int opts)
3076 {
3077 struct pfioc_ruleset pr;
3078 static struct pfr_anchors anchors;
3079 char anchorbuf[PATH_MAX];
3080 char *n;
3081
3082 SLIST_INIT(&anchors);
3083
3084 memset(&pr, 0, sizeof(pr));
3085 if (*anchor != '\0') {
3086 strlcpy(anchorbuf, anchor, sizeof(anchorbuf));
3087 n = dirname(anchorbuf);
3088 if (n[0] != '.' && n[1] != '\0')
3089 strlcpy(pr.path, n, sizeof(pr.path));
3090 strlcpy(anchorbuf, anchor, sizeof(anchorbuf));
3091 n = basename(anchorbuf);
3092 if (n != NULL)
3093 strlcpy(pr.name, n, sizeof(pr.name));
3094 }
3095
3096 /* insert a root anchor first. */
3097 pfctl_walk_get(opts, &pr, &anchors);
3098
3099 if (pfctl_walk_anchors(dev, opts, anchor, pfctl_walk_get, &anchors))
3100 errx(1, "%s failed to retrieve list of anchors, can't continue",
3101 __func__);
3102
3103 return (&anchors);
3104 }
3105
3106 int
pfctl_call_cleartables(int dev,int opts,struct pfr_anchoritem * pfra)3107 pfctl_call_cleartables(int dev, int opts, struct pfr_anchoritem *pfra)
3108 {
3109 /*
3110 * PF_OPT_QUIET makes pfctl_clear_tables() to stop printing number of
3111 * tables cleared for given anchor.
3112 */
3113 opts |= PF_OPT_QUIET;
3114 return ((pfctl_do_clear_tables(pfra->pfra_anchorname, opts) == -1) ?
3115 1 : 0);
3116 }
3117
3118 int
pfctl_call_clearrules(int dev,int opts,struct pfr_anchoritem * pfra)3119 pfctl_call_clearrules(int dev, int opts, struct pfr_anchoritem *pfra)
3120 {
3121 /*
3122 * PF_OPT_QUIET makes pfctl_clear_rules() to stop printing a 'rules
3123 * cleared' message for every anchor it deletes.
3124 */
3125 opts |= PF_OPT_QUIET;
3126 return (pfctl_flush_rules(dev, opts, pfra->pfra_anchorname));
3127 }
3128
3129 int
pfctl_call_clearanchors(int dev,int opts,struct pfr_anchoritem * pfra)3130 pfctl_call_clearanchors(int dev, int opts, struct pfr_anchoritem *pfra)
3131 {
3132 int rv = 0;
3133
3134 rv |= pfctl_call_cleartables(dev, opts, pfra);
3135 rv |= pfctl_call_clearrules(dev, opts, pfra);
3136
3137 return (rv);
3138 }
3139
3140 int
pfctl_call_showtables(int dev,int opts,struct pfr_anchoritem * pfra)3141 pfctl_call_showtables(int dev, int opts, struct pfr_anchoritem *pfra)
3142 {
3143 pfctl_show_tables(pfra->pfra_anchorname, opts);
3144 return (0);
3145 }
3146
3147 int
pfctl_recurse(int dev,int opts,const char * anchorname,int (* walkf)(int,int,struct pfr_anchoritem *))3148 pfctl_recurse(int dev, int opts, const char *anchorname,
3149 int(*walkf)(int, int, struct pfr_anchoritem *))
3150 {
3151 int rv = 0;
3152 struct pfr_anchors *anchors;
3153 struct pfr_anchoritem *pfra, *pfra_save;
3154
3155 anchors = pfctl_get_anchors(dev, anchorname, opts);
3156 /*
3157 * While traversing the list, pfctl_clear_*() must always return
3158 * so that failures on one anchor do not prevent clearing others.
3159 */
3160 opts |= PF_OPT_IGNFAIL;
3161 if ((opts & PF_OPT_CALLSHOW) == 0)
3162 printf("Removing:\n");
3163 SLIST_FOREACH_SAFE(pfra, anchors, pfra_sle, pfra_save) {
3164 if ((opts & PF_OPT_CALLSHOW) == 0)
3165 printf(" %s\n",
3166 (*pfra->pfra_anchorname == '\0') ? "/" :
3167 pfra->pfra_anchorname);
3168 rv |= walkf(dev, opts, pfra);
3169 SLIST_REMOVE(anchors, pfra, pfr_anchoritem, pfra_sle);
3170 free(pfra->pfra_anchorname);
3171 free(pfra);
3172 }
3173
3174 return (rv);
3175 }
3176
3177 int
pfctl_show_eth_anchors(int dev,int opts,char * anchorname)3178 pfctl_show_eth_anchors(int dev, int opts, char *anchorname)
3179 {
3180 struct pfctl_eth_rulesets_info ri;
3181 struct pfctl_eth_ruleset_info rs;
3182 int ret;
3183
3184 if ((ret = pfctl_get_eth_rulesets_info(dev, &ri, anchorname)) != 0) {
3185 if (ret == ENOENT)
3186 fprintf(stderr, "Anchor '%s' not found.\n",
3187 anchorname);
3188 else
3189 errc(1, ret, "DIOCGETETHRULESETS");
3190 return (-1);
3191 }
3192
3193 for (int nr = 0; nr < ri.nr; nr++) {
3194 char sub[MAXPATHLEN];
3195
3196 if ((ret = pfctl_get_eth_ruleset(dev, anchorname, nr, &rs)) != 0)
3197 errc(1, ret, "DIOCGETETHRULESET");
3198
3199 if (!strcmp(rs.name, PF_RESERVED_ANCHOR))
3200 continue;
3201 sub[0] = 0;
3202 if (rs.path[0]) {
3203 strlcat(sub, rs.path, sizeof(sub));
3204 strlcat(sub, "/", sizeof(sub));
3205 }
3206 strlcat(sub, rs.name, sizeof(sub));
3207 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
3208 printf(" %s\n", sub);
3209 if ((opts & PF_OPT_VERBOSE) && pfctl_show_eth_anchors(dev, opts, sub))
3210 return (-1);
3211 }
3212 return (0);
3213 }
3214
3215 const char *
pfctl_lookup_option(char * cmd,const char * const * list)3216 pfctl_lookup_option(char *cmd, const char * const *list)
3217 {
3218 if (cmd != NULL && *cmd)
3219 for (; *list; list++)
3220 if (!strncmp(cmd, *list, strlen(cmd)))
3221 return (*list);
3222 return (NULL);
3223 }
3224
3225 void
pfctl_reset(int dev,int opts)3226 pfctl_reset(int dev, int opts)
3227 {
3228 struct pfctl pf;
3229 struct pfr_buffer t;
3230 int i;
3231
3232 memset(&pf, 0, sizeof(pf));
3233 pf.dev = dev;
3234 pf.h = pfh;
3235 pfctl_init_options(&pf);
3236
3237 /* Force reset upon pfctl_load_options() */
3238 pf.debug_set = 1;
3239 pf.reass_set = 1;
3240 pf.syncookieswat_set = 1;
3241 pf.ifname = strdup("none");
3242 if (pf.ifname == NULL)
3243 err(1, "%s: strdup", __func__);
3244 pf.ifname_set = 1;
3245
3246 memset(&t, 0, sizeof(t));
3247 t.pfrb_type = PFRB_TRANS;
3248 if (pfctl_trans(dev, &t, DIOCXBEGIN, 0))
3249 err(1, "%s: DIOCXBEGIN", __func__);
3250
3251 for (i = 0; pf_limits[i].name; i++)
3252 pf.limit_set[pf_limits[i].index] = 1;
3253
3254 for (i = 0; pf_timeouts[i].name; i++)
3255 pf.timeout_set[pf_timeouts[i].timeout] = 1;
3256
3257 pfctl_load_options(&pf);
3258
3259 if (pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
3260 err(1, "%s: DIOCXCOMMIT", __func__);
3261
3262 pfctl_clear_interface_flags(dev, opts);
3263 }
3264
3265 int
main(int argc,char * argv[])3266 main(int argc, char *argv[])
3267 {
3268 int ch;
3269 int mode = O_RDONLY;
3270 int opts = 0;
3271 int optimize = PF_OPTIMIZE_BASIC;
3272 char anchorname[MAXPATHLEN];
3273 char *path;
3274
3275 if (argc < 2)
3276 usage();
3277
3278 while ((ch = getopt(argc, argv,
3279 "a:AdD:eqf:F:ghi:k:K:mMnNOo:Pp:rRs:St:T:vx:z")) != -1) {
3280 switch (ch) {
3281 case 'a':
3282 anchoropt = optarg;
3283 break;
3284 case 'd':
3285 opts |= PF_OPT_DISABLE;
3286 mode = O_RDWR;
3287 break;
3288 case 'D':
3289 if (pfctl_cmdline_symset(optarg) < 0)
3290 warnx("could not parse macro definition %s",
3291 optarg);
3292 break;
3293 case 'e':
3294 opts |= PF_OPT_ENABLE;
3295 mode = O_RDWR;
3296 break;
3297 case 'q':
3298 opts |= PF_OPT_QUIET;
3299 break;
3300 case 'F':
3301 clearopt = pfctl_lookup_option(optarg, clearopt_list);
3302 if (clearopt == NULL) {
3303 warnx("Unknown flush modifier '%s'", optarg);
3304 usage();
3305 }
3306 mode = O_RDWR;
3307 break;
3308 case 'i':
3309 ifaceopt = optarg;
3310 break;
3311 case 'k':
3312 if (state_killers >= 2) {
3313 warnx("can only specify -k twice");
3314 usage();
3315 /* NOTREACHED */
3316 }
3317 state_kill[state_killers++] = optarg;
3318 mode = O_RDWR;
3319 break;
3320 case 'K':
3321 if (src_node_killers >= 2) {
3322 warnx("can only specify -K twice");
3323 usage();
3324 /* NOTREACHED */
3325 }
3326 src_node_kill[src_node_killers++] = optarg;
3327 mode = O_RDWR;
3328 break;
3329 case 'm':
3330 opts |= PF_OPT_MERGE;
3331 break;
3332 case 'M':
3333 opts |= PF_OPT_KILLMATCH;
3334 break;
3335 case 'n':
3336 opts |= PF_OPT_NOACTION;
3337 break;
3338 case 'N':
3339 loadopt |= PFCTL_FLAG_NAT;
3340 break;
3341 case 'r':
3342 opts |= PF_OPT_USEDNS;
3343 break;
3344 case 'f':
3345 rulesopt = optarg;
3346 mode = O_RDWR;
3347 break;
3348 case 'g':
3349 opts |= PF_OPT_DEBUG;
3350 break;
3351 case 'A':
3352 loadopt |= PFCTL_FLAG_ALTQ;
3353 break;
3354 case 'R':
3355 loadopt |= PFCTL_FLAG_FILTER;
3356 break;
3357 case 'o':
3358 optiopt = pfctl_lookup_option(optarg, optiopt_list);
3359 if (optiopt == NULL) {
3360 warnx("Unknown optimization '%s'", optarg);
3361 usage();
3362 }
3363 opts |= PF_OPT_OPTIMIZE;
3364 break;
3365 case 'O':
3366 loadopt |= PFCTL_FLAG_OPTION;
3367 break;
3368 case 'p':
3369 pf_device = optarg;
3370 break;
3371 case 'P':
3372 opts |= PF_OPT_NUMERIC;
3373 break;
3374 case 's':
3375 showopt = pfctl_lookup_option(optarg, showopt_list);
3376 if (showopt == NULL) {
3377 warnx("Unknown show modifier '%s'", optarg);
3378 usage();
3379 }
3380 break;
3381 case 'S':
3382 opts |= PF_OPT_NODNS;
3383 break;
3384 case 't':
3385 tableopt = optarg;
3386 break;
3387 case 'T':
3388 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list);
3389 if (tblcmdopt == NULL) {
3390 warnx("Unknown table command '%s'", optarg);
3391 usage();
3392 }
3393 break;
3394 case 'v':
3395 if (opts & PF_OPT_VERBOSE)
3396 opts |= PF_OPT_VERBOSE2;
3397 opts |= PF_OPT_VERBOSE;
3398 break;
3399 case 'x':
3400 debugopt = pfctl_lookup_option(optarg, debugopt_list);
3401 if (debugopt == NULL) {
3402 warnx("Unknown debug level '%s'", optarg);
3403 usage();
3404 }
3405 mode = O_RDWR;
3406 break;
3407 case 'z':
3408 opts |= PF_OPT_CLRRULECTRS;
3409 mode = O_RDWR;
3410 break;
3411 case 'h':
3412 /* FALLTHROUGH */
3413 default:
3414 usage();
3415 /* NOTREACHED */
3416 }
3417 }
3418
3419 if ((opts & PF_OPT_NODNS) && (opts & PF_OPT_USEDNS))
3420 errx(1, "-N and -r are mutually exclusive");
3421
3422 if ((tblcmdopt == NULL) ^ (tableopt == NULL))
3423 usage();
3424
3425 if (tblcmdopt != NULL) {
3426 argc -= optind;
3427 argv += optind;
3428 ch = *tblcmdopt;
3429 if (ch == 'l') {
3430 loadopt |= PFCTL_FLAG_TABLE;
3431 tblcmdopt = NULL;
3432 } else
3433 mode = strchr("st", ch) ? O_RDONLY : O_RDWR;
3434 } else if (argc != optind) {
3435 warnx("unknown command line argument: %s ...", argv[optind]);
3436 usage();
3437 /* NOTREACHED */
3438 }
3439 if (loadopt == 0)
3440 loadopt = ~0;
3441
3442 memset(anchorname, 0, sizeof(anchorname));
3443 if (anchoropt != NULL) {
3444 int len = strlen(anchoropt);
3445
3446 if (anchoropt[0] == '\0')
3447 errx(1, "anchor name must not be empty");
3448 if (mode == O_RDONLY && showopt == NULL && tblcmdopt == NULL) {
3449 warnx("anchors apply to -f, -F, -s, and -T only");
3450 usage();
3451 }
3452 if (mode == O_RDWR && tblcmdopt == NULL &&
3453 (anchoropt[0] == '_' || strstr(anchoropt, "/_") != NULL))
3454 errx(1, "anchor names beginning with '_' cannot "
3455 "be modified from the command line");
3456
3457 if (len >= 1 && anchoropt[len - 1] == '*') {
3458 if (len >= 2 && anchoropt[len - 2] == '/')
3459 anchoropt[len - 2] = '\0';
3460 else
3461 anchoropt[len - 1] = '\0';
3462 opts |= PF_OPT_RECURSE;
3463 }
3464 if (strlcpy(anchorname, anchoropt,
3465 sizeof(anchorname)) >= sizeof(anchorname))
3466 errx(1, "anchor name '%s' too long",
3467 anchoropt);
3468 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE|PFCTL_FLAG_ETH;
3469 }
3470
3471 if ((opts & PF_OPT_NOACTION) == 0) {
3472 dev = open(pf_device, mode);
3473 if (dev == -1)
3474 err(1, "%s", pf_device);
3475 altqsupport = pfctl_test_altqsupport(dev, opts);
3476 } else {
3477 dev = open(pf_device, O_RDONLY);
3478 if (dev >= 0)
3479 opts |= PF_OPT_DUMMYACTION;
3480 /* turn off options */
3481 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
3482 clearopt = showopt = debugopt = NULL;
3483 #if !defined(ENABLE_ALTQ)
3484 altqsupport = 0;
3485 #else
3486 altqsupport = 1;
3487 #endif
3488 }
3489 pfh = pfctl_open(pf_device);
3490 if (pfh == NULL)
3491 err(1, "Failed to open netlink");
3492
3493 if ((opts & PF_OPT_NOACTION) == 0) {
3494 pfctl_read_limits(pfh);
3495 atexit(pfctl_restore_limits);
3496 }
3497
3498 if (opts & PF_OPT_DISABLE)
3499 if (pfctl_disable(dev, opts))
3500 exit_val = 1;
3501
3502 if ((path = calloc(1, MAXPATHLEN)) == NULL)
3503 errx(1, "%s: calloc", __func__);
3504
3505 if (showopt != NULL) {
3506 switch (*showopt) {
3507 case 'A':
3508 pfctl_show_anchors(dev, opts, anchorname);
3509 if (opts & PF_OPT_VERBOSE2)
3510 printf("Ethernet:\n");
3511 pfctl_show_eth_anchors(dev, opts, anchorname);
3512 break;
3513 case 'r':
3514 pfctl_load_fingerprints(dev, opts);
3515 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
3516 anchorname, 0, 0);
3517 break;
3518 case 'l':
3519 pfctl_load_fingerprints(dev, opts);
3520 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
3521 anchorname, 0, 0);
3522 break;
3523 case 'n':
3524 pfctl_load_fingerprints(dev, opts);
3525 pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
3526 break;
3527 case 'q':
3528 pfctl_show_altq(dev, ifaceopt, opts,
3529 opts & PF_OPT_VERBOSE2);
3530 break;
3531 case 's':
3532 pfctl_show_states(dev, ifaceopt, opts);
3533 break;
3534 case 'S':
3535 pfctl_show_src_nodes(dev, opts);
3536 break;
3537 case 'i':
3538 pfctl_show_status(dev, opts);
3539 break;
3540 case 'R':
3541 exit_val = pfctl_show_running(dev);
3542 break;
3543 case 't':
3544 pfctl_show_timeouts(dev, opts);
3545 break;
3546 case 'm':
3547 pfctl_show_limits(dev, opts);
3548 break;
3549 case 'e':
3550 pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0,
3551 0);
3552 break;
3553 case 'a':
3554 opts |= PF_OPT_SHOWALL;
3555 pfctl_load_fingerprints(dev, opts);
3556
3557 pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0,
3558 0);
3559
3560 pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
3561 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
3562 anchorname, 0, 0);
3563 pfctl_show_altq(dev, ifaceopt, opts, 0);
3564 pfctl_show_states(dev, ifaceopt, opts);
3565 pfctl_show_src_nodes(dev, opts);
3566 pfctl_show_status(dev, opts);
3567 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
3568 anchorname, 0, 0);
3569 pfctl_show_timeouts(dev, opts);
3570 pfctl_show_limits(dev, opts);
3571 pfctl_show_tables(anchorname, opts);
3572 pfctl_show_fingerprints(opts);
3573 break;
3574 case 'T':
3575 if (opts & PF_OPT_RECURSE) {
3576 opts |= PF_OPT_CALLSHOW;
3577 pfctl_recurse(dev, opts, anchorname,
3578 pfctl_call_showtables);
3579 } else
3580 pfctl_show_tables(anchorname, opts);
3581 break;
3582 case 'o':
3583 pfctl_load_fingerprints(dev, opts);
3584 pfctl_show_fingerprints(opts);
3585 break;
3586 case 'I':
3587 pfctl_show_ifaces(ifaceopt, opts);
3588 break;
3589 case 'c':
3590 pfctl_show_creators(opts);
3591 break;
3592 }
3593 }
3594
3595 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL) {
3596 pfctl_show_eth_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
3597 anchorname, 0, 0);
3598 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
3599 anchorname, 0, 0);
3600 }
3601
3602 if (clearopt != NULL) {
3603 switch (*clearopt) {
3604 case 'e':
3605 pfctl_flush_eth_rules(dev, opts, anchorname);
3606 break;
3607 case 'r':
3608 if (opts & PF_OPT_RECURSE)
3609 pfctl_recurse(dev, opts, anchorname,
3610 pfctl_call_clearrules);
3611 else
3612 pfctl_flush_rules(dev, opts, anchorname);
3613 break;
3614 case 'n':
3615 pfctl_flush_nat(dev, opts, anchorname);
3616 break;
3617 case 'q':
3618 pfctl_clear_altq(dev, opts);
3619 break;
3620 case 's':
3621 pfctl_clear_iface_states(dev, ifaceopt, opts);
3622 break;
3623 case 'S':
3624 pfctl_clear_src_nodes(dev, opts);
3625 break;
3626 case 'i':
3627 pfctl_clear_stats(pfh, opts);
3628 break;
3629 case 'a':
3630 if (ifaceopt) {
3631 warnx("don't specify an interface with -Fall");
3632 usage();
3633 /* NOTREACHED */
3634 }
3635 pfctl_flush_eth_rules(dev, opts, anchorname);
3636 pfctl_flush_rules(dev, opts, anchorname);
3637 pfctl_flush_nat(dev, opts, anchorname);
3638 if (opts & PF_OPT_RECURSE)
3639 pfctl_recurse(dev, opts, anchorname,
3640 pfctl_call_clearanchors);
3641 else {
3642 pfctl_do_clear_tables(anchorname, opts);
3643 pfctl_flush_rules(dev, opts, anchorname);
3644 }
3645 if (!*anchorname) {
3646 pfctl_clear_altq(dev, opts);
3647 pfctl_clear_iface_states(dev, ifaceopt, opts);
3648 pfctl_clear_src_nodes(dev, opts);
3649 pfctl_clear_stats(pfh, opts);
3650 pfctl_clear_fingerprints(dev, opts);
3651 pfctl_reset(dev, opts);
3652 }
3653 break;
3654 case 'o':
3655 pfctl_clear_fingerprints(dev, opts);
3656 break;
3657 case 'T':
3658 if ((opts & PF_OPT_RECURSE) == 0)
3659 pfctl_do_clear_tables(anchorname, opts);
3660 else
3661 pfctl_recurse(dev, opts, anchorname,
3662 pfctl_call_cleartables);
3663 break;
3664 case 'R':
3665 pfctl_reset(dev, opts);
3666 break;
3667 }
3668 }
3669 if (state_killers) {
3670 if (!strcmp(state_kill[0], "label"))
3671 pfctl_label_kill_states(dev, ifaceopt, opts);
3672 else if (!strcmp(state_kill[0], "id"))
3673 pfctl_id_kill_states(dev, ifaceopt, opts);
3674 else if (!strcmp(state_kill[0], "gateway"))
3675 pfctl_gateway_kill_states(dev, ifaceopt, opts);
3676 else if (!strcmp(state_kill[0], "key"))
3677 pfctl_key_kill_states(dev, ifaceopt, opts);
3678 else
3679 pfctl_net_kill_states(dev, ifaceopt, opts);
3680 }
3681
3682 if (src_node_killers)
3683 pfctl_kill_src_nodes(dev, opts);
3684
3685 if (tblcmdopt != NULL) {
3686 exit_val = pfctl_table(argc, argv, tableopt,
3687 tblcmdopt, rulesopt, anchorname, opts);
3688 rulesopt = NULL;
3689 }
3690 if (optiopt != NULL) {
3691 switch (*optiopt) {
3692 case 'n':
3693 optimize = 0;
3694 break;
3695 case 'b':
3696 optimize |= PF_OPTIMIZE_BASIC;
3697 break;
3698 case 'o':
3699 case 'p':
3700 optimize |= PF_OPTIMIZE_PROFILE;
3701 break;
3702 }
3703 }
3704
3705 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) &&
3706 !anchorname[0] && !(opts & PF_OPT_NOACTION))
3707 pfctl_get_skip_ifaces();
3708
3709 if (rulesopt != NULL && !(opts & PF_OPT_MERGE) &&
3710 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
3711 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
3712 exit_val = 1;
3713
3714 if (rulesopt != NULL) {
3715 if (pfctl_rules(dev, rulesopt, opts, optimize,
3716 anchorname, NULL))
3717 exit_val = 1;
3718 }
3719
3720 if (opts & PF_OPT_ENABLE)
3721 if (pfctl_enable(dev, opts))
3722 exit_val = 1;
3723
3724 if (debugopt != NULL) {
3725 switch (*debugopt) {
3726 case 'n':
3727 pfctl_debug(dev, PF_DEBUG_NONE, opts);
3728 break;
3729 case 'u':
3730 pfctl_debug(dev, PF_DEBUG_URGENT, opts);
3731 break;
3732 case 'm':
3733 pfctl_debug(dev, PF_DEBUG_MISC, opts);
3734 break;
3735 case 'l':
3736 pfctl_debug(dev, PF_DEBUG_NOISY, opts);
3737 break;
3738 }
3739 }
3740
3741 /*
3742 * prevent pfctl_restore_limits() exit handler from restoring
3743 * pf(4) options settings on successful exit.
3744 */
3745 if (exit_val == 0) {
3746 close(dev);
3747 dev = -1;
3748 pfctl_close(pfh);
3749 pfh = NULL;
3750 }
3751
3752 return (exit_val);
3753 }
3754
3755 char *
pf_strerror(int errnum)3756 pf_strerror(int errnum)
3757 {
3758 switch (errnum) {
3759 case ESRCH:
3760 return "Table does not exist.";
3761 case EINVAL:
3762 case ENOENT:
3763 return "Anchor does not exist.";
3764 default:
3765 return strerror(errnum);
3766 }
3767 }
3768