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
63 #include "pfctl_parser.h"
64 #include "pfctl.h"
65
66 void usage(void);
67 int pfctl_enable(int, int);
68 int pfctl_disable(int, int);
69 int pfctl_clear_stats(struct pfctl_handle *, int);
70 int pfctl_get_skip_ifaces(void);
71 int pfctl_check_skip_ifaces(char *);
72 int pfctl_adjust_skip_ifaces(struct pfctl *);
73 int pfctl_clear_interface_flags(int, int);
74 int pfctl_flush_eth_rules(int, int, char *);
75 int pfctl_flush_rules(int, int, char *);
76 int pfctl_flush_nat(int, int, char *);
77 int pfctl_clear_altq(int, int);
78 int pfctl_clear_src_nodes(int, int);
79 int pfctl_clear_iface_states(int, const char *, int);
80 void pfctl_addrprefix(char *, struct pf_addr *);
81 int pfctl_kill_src_nodes(int, const char *, int);
82 int pfctl_net_kill_states(int, const char *, int);
83 int pfctl_gateway_kill_states(int, const char *, int);
84 int pfctl_label_kill_states(int, const char *, int);
85 int pfctl_id_kill_states(int, const char *, int);
86 void pfctl_init_options(struct pfctl *);
87 int pfctl_load_options(struct pfctl *);
88 int pfctl_load_limit(struct pfctl *, unsigned int, unsigned int);
89 int pfctl_load_timeout(struct pfctl *, unsigned int, unsigned int);
90 int pfctl_load_debug(struct pfctl *, unsigned int);
91 int pfctl_load_logif(struct pfctl *, char *);
92 int pfctl_load_hostid(struct pfctl *, u_int32_t);
93 int pfctl_load_reassembly(struct pfctl *, u_int32_t);
94 int pfctl_load_syncookies(struct pfctl *, u_int8_t);
95 int pfctl_get_pool(int, struct pfctl_pool *, u_int32_t, u_int32_t, int,
96 char *, int);
97 void pfctl_print_eth_rule_counters(struct pfctl_eth_rule *, int);
98 void pfctl_print_rule_counters(struct pfctl_rule *, int);
99 int pfctl_show_eth_rules(int, char *, int, enum pfctl_show, char *, int, int);
100 int pfctl_show_rules(int, char *, int, enum pfctl_show, char *, int, int);
101 int pfctl_show_nat(int, char *, int, char *, int, int);
102 int pfctl_show_src_nodes(int, int);
103 int pfctl_show_states(int, const char *, int);
104 int pfctl_show_status(int, int);
105 int pfctl_show_running(int);
106 int pfctl_show_timeouts(int, int);
107 int pfctl_show_limits(int, int);
108 void pfctl_debug(int, u_int32_t, int);
109 int pfctl_test_altqsupport(int, int);
110 int pfctl_show_anchors(int, int, char *);
111 int pfctl_show_eth_anchors(int, int, char *);
112 int pfctl_ruleset_trans(struct pfctl *, char *, struct pfctl_anchor *, bool);
113 int pfctl_eth_ruleset_trans(struct pfctl *, char *,
114 struct pfctl_eth_anchor *);
115 int pfctl_load_eth_ruleset(struct pfctl *, char *,
116 struct pfctl_eth_ruleset *, int);
117 int pfctl_load_eth_rule(struct pfctl *, char *, struct pfctl_eth_rule *,
118 int);
119 int pfctl_load_ruleset(struct pfctl *, char *,
120 struct pfctl_ruleset *, int, int);
121 int pfctl_load_rule(struct pfctl *, char *, struct pfctl_rule *, int);
122 const char *pfctl_lookup_option(char *, const char * const *);
123
124 static struct pfctl_anchor_global pf_anchors;
125 struct pfctl_anchor pf_main_anchor;
126 struct pfctl_eth_anchor pf_eth_main_anchor;
127 static struct pfr_buffer skip_b;
128
129 static const char *clearopt;
130 static char *rulesopt;
131 static const char *showopt;
132 static const char *debugopt;
133 static char *anchoropt;
134 static const char *optiopt = NULL;
135 static const char *pf_device = PF_DEVICE;
136 static char *ifaceopt;
137 static char *tableopt;
138 static const char *tblcmdopt;
139 static int src_node_killers;
140 static char *src_node_kill[2];
141 static int state_killers;
142 static char *state_kill[2];
143 int loadopt;
144 int altqsupport;
145
146 int dev = -1;
147 struct pfctl_handle *pfh = NULL;
148 static int first_title = 1;
149 static int labels = 0;
150
151 #define INDENT(d, o) do { \
152 if (o) { \
153 int i; \
154 for (i=0; i < d; i++) \
155 printf(" "); \
156 } \
157 } while (0); \
158
159
160 static const struct {
161 const char *name;
162 int index;
163 } pf_limits[] = {
164 { "states", PF_LIMIT_STATES },
165 { "src-nodes", PF_LIMIT_SRC_NODES },
166 { "frags", PF_LIMIT_FRAGS },
167 { "table-entries", PF_LIMIT_TABLE_ENTRIES },
168 { NULL, 0 }
169 };
170
171 struct pf_hint {
172 const char *name;
173 int timeout;
174 };
175 static const struct pf_hint pf_hint_normal[] = {
176 { "tcp.first", 2 * 60 },
177 { "tcp.opening", 30 },
178 { "tcp.established", 24 * 60 * 60 },
179 { "tcp.closing", 15 * 60 },
180 { "tcp.finwait", 45 },
181 { "tcp.closed", 90 },
182 { "tcp.tsdiff", 30 },
183 { NULL, 0 }
184 };
185 static const struct pf_hint pf_hint_satellite[] = {
186 { "tcp.first", 3 * 60 },
187 { "tcp.opening", 30 + 5 },
188 { "tcp.established", 24 * 60 * 60 },
189 { "tcp.closing", 15 * 60 + 5 },
190 { "tcp.finwait", 45 + 5 },
191 { "tcp.closed", 90 + 5 },
192 { "tcp.tsdiff", 60 },
193 { NULL, 0 }
194 };
195 static const struct pf_hint pf_hint_conservative[] = {
196 { "tcp.first", 60 * 60 },
197 { "tcp.opening", 15 * 60 },
198 { "tcp.established", 5 * 24 * 60 * 60 },
199 { "tcp.closing", 60 * 60 },
200 { "tcp.finwait", 10 * 60 },
201 { "tcp.closed", 3 * 60 },
202 { "tcp.tsdiff", 60 },
203 { NULL, 0 }
204 };
205 static const struct pf_hint pf_hint_aggressive[] = {
206 { "tcp.first", 30 },
207 { "tcp.opening", 5 },
208 { "tcp.established", 5 * 60 * 60 },
209 { "tcp.closing", 60 },
210 { "tcp.finwait", 30 },
211 { "tcp.closed", 30 },
212 { "tcp.tsdiff", 10 },
213 { NULL, 0 }
214 };
215
216 static const struct {
217 const char *name;
218 const struct pf_hint *hint;
219 } pf_hints[] = {
220 { "normal", pf_hint_normal },
221 { "satellite", pf_hint_satellite },
222 { "high-latency", pf_hint_satellite },
223 { "conservative", pf_hint_conservative },
224 { "aggressive", pf_hint_aggressive },
225 { NULL, NULL }
226 };
227
228 static const char * const clearopt_list[] = {
229 "nat", "queue", "rules", "Sources",
230 "states", "info", "Tables", "osfp", "all",
231 "ethernet", NULL
232 };
233
234 static const char * const showopt_list[] = {
235 "ether", "nat", "queue", "rules", "Anchors", "Sources", "states",
236 "info", "Interfaces", "labels", "timeouts", "memory", "Tables",
237 "osfp", "Running", "all", "creatorids", NULL
238 };
239
240 static const char * const tblcmdopt_list[] = {
241 "kill", "flush", "add", "delete", "load", "replace", "show",
242 "test", "zero", "expire", "reset", NULL
243 };
244
245 static const char * const debugopt_list[] = {
246 "none", "urgent", "misc", "loud", NULL
247 };
248
249 static const char * const optiopt_list[] = {
250 "none", "basic", "profile", NULL
251 };
252
253 void
usage(void)254 usage(void)
255 {
256 extern char *__progname;
257
258 fprintf(stderr,
259 "usage: %s [-AdeghMmNnOPqRrvz] [-a anchor] [-D macro=value] [-F modifier]\n"
260 "\t[-f file] [-i interface] [-K host | network]\n"
261 "\t[-k host | network | gateway | label | id] [-o level] [-p device]\n"
262 "\t[-s modifier] [-t table -T command [address ...]] [-x level]\n",
263 __progname);
264
265 exit(1);
266 }
267
268 /*
269 * Cache protocol number to name translations.
270 *
271 * Translation is performed a lot e.g., when dumping states and
272 * getprotobynumber is incredibly expensive.
273 *
274 * Note from the getprotobynumber(3) manpage:
275 * <quote>
276 * These functions use a thread-specific data space; if the data is needed
277 * for future use, it should be copied before any subsequent calls overwrite
278 * it. Only the Internet protocols are currently understood.
279 * </quote>
280 *
281 * Consequently we only cache the name and strdup it for safety.
282 *
283 * At the time of writing this comment the last entry in /etc/protocols is:
284 * divert 258 DIVERT # Divert pseudo-protocol [non IANA]
285 */
286 const char *
pfctl_proto2name(int proto)287 pfctl_proto2name(int proto)
288 {
289 static const char *pfctl_proto_cache[259];
290 struct protoent *p;
291
292 if (proto >= nitems(pfctl_proto_cache)) {
293 p = getprotobynumber(proto);
294 if (p == NULL) {
295 return (NULL);
296 }
297 return (p->p_name);
298 }
299
300 if (pfctl_proto_cache[proto] == NULL) {
301 p = getprotobynumber(proto);
302 if (p == NULL) {
303 return (NULL);
304 }
305 pfctl_proto_cache[proto] = strdup(p->p_name);
306 }
307
308 return (pfctl_proto_cache[proto]);
309 }
310
311 int
pfctl_enable(int dev,int opts)312 pfctl_enable(int dev, int opts)
313 {
314 int ret;
315
316 if ((ret = pfctl_startstop(pfh, 1)) != 0) {
317 if (ret == EEXIST)
318 errx(1, "pf already enabled");
319 else if (ret == ESRCH)
320 errx(1, "pfil registeration failed");
321 else
322 errc(1, ret, "DIOCSTART");
323 }
324 if ((opts & PF_OPT_QUIET) == 0)
325 fprintf(stderr, "pf enabled\n");
326
327 if (altqsupport && ioctl(dev, DIOCSTARTALTQ))
328 if (errno != EEXIST)
329 err(1, "DIOCSTARTALTQ");
330
331 return (0);
332 }
333
334 int
pfctl_disable(int dev,int opts)335 pfctl_disable(int dev, int opts)
336 {
337 int ret;
338
339 if ((ret = pfctl_startstop(pfh, 0)) != 0) {
340 if (ret == ENOENT)
341 errx(1, "pf not enabled");
342 else
343 errc(1, ret, "DIOCSTOP");
344 }
345 if ((opts & PF_OPT_QUIET) == 0)
346 fprintf(stderr, "pf disabled\n");
347
348 if (altqsupport && ioctl(dev, DIOCSTOPALTQ))
349 if (errno != ENOENT)
350 err(1, "DIOCSTOPALTQ");
351
352 return (0);
353 }
354
355 int
pfctl_clear_stats(struct pfctl_handle * h,int opts)356 pfctl_clear_stats(struct pfctl_handle *h, int opts)
357 {
358 int ret;
359 if ((ret = pfctl_clear_status(h)) != 0)
360 errc(1, ret, "DIOCCLRSTATUS");
361 if ((opts & PF_OPT_QUIET) == 0)
362 fprintf(stderr, "pf: statistics cleared\n");
363 return (0);
364 }
365
366 int
pfctl_get_skip_ifaces(void)367 pfctl_get_skip_ifaces(void)
368 {
369 bzero(&skip_b, sizeof(skip_b));
370 skip_b.pfrb_type = PFRB_IFACES;
371 for (;;) {
372 pfr_buf_grow(&skip_b, skip_b.pfrb_size);
373 skip_b.pfrb_size = skip_b.pfrb_msize;
374 if (pfi_get_ifaces(NULL, skip_b.pfrb_caddr, &skip_b.pfrb_size))
375 err(1, "pfi_get_ifaces");
376 if (skip_b.pfrb_size <= skip_b.pfrb_msize)
377 break;
378 }
379 return (0);
380 }
381
382 int
pfctl_check_skip_ifaces(char * ifname)383 pfctl_check_skip_ifaces(char *ifname)
384 {
385 struct pfi_kif *p;
386 struct node_host *h = NULL, *n = NULL;
387
388 PFRB_FOREACH(p, &skip_b) {
389 if (!strcmp(ifname, p->pfik_name) &&
390 (p->pfik_flags & PFI_IFLAG_SKIP))
391 p->pfik_flags &= ~PFI_IFLAG_SKIP;
392 if (!strcmp(ifname, p->pfik_name) && p->pfik_group != NULL) {
393 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
394 continue;
395
396 for (n = h; n != NULL; n = n->next) {
397 if (strncmp(p->pfik_name, ifname, IFNAMSIZ))
398 continue;
399
400 p->pfik_flags &= ~PFI_IFLAG_SKIP;
401 }
402 }
403 }
404 return (0);
405 }
406
407 int
pfctl_adjust_skip_ifaces(struct pfctl * pf)408 pfctl_adjust_skip_ifaces(struct pfctl *pf)
409 {
410 struct pfi_kif *p, *pp;
411 struct node_host *h = NULL, *n = NULL;
412
413 PFRB_FOREACH(p, &skip_b) {
414 if (p->pfik_group == NULL || !(p->pfik_flags & PFI_IFLAG_SKIP))
415 continue;
416
417 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
418 if ((h = ifa_grouplookup(p->pfik_name, 0)) == NULL)
419 continue;
420
421 for (n = h; n != NULL; n = n->next)
422 PFRB_FOREACH(pp, &skip_b) {
423 if (strncmp(pp->pfik_name, n->ifname, IFNAMSIZ))
424 continue;
425
426 if (!(pp->pfik_flags & PFI_IFLAG_SKIP))
427 pfctl_set_interface_flags(pf,
428 pp->pfik_name, PFI_IFLAG_SKIP, 1);
429 if (pp->pfik_flags & PFI_IFLAG_SKIP)
430 pp->pfik_flags &= ~PFI_IFLAG_SKIP;
431 }
432 }
433
434 PFRB_FOREACH(p, &skip_b) {
435 if (! (p->pfik_flags & PFI_IFLAG_SKIP))
436 continue;
437
438 pfctl_set_interface_flags(pf, p->pfik_name, PFI_IFLAG_SKIP, 0);
439 }
440
441 return (0);
442 }
443
444 int
pfctl_clear_interface_flags(int dev,int opts)445 pfctl_clear_interface_flags(int dev, int opts)
446 {
447 struct pfioc_iface pi;
448
449 if ((opts & PF_OPT_NOACTION) == 0) {
450 bzero(&pi, sizeof(pi));
451 pi.pfiio_flags = PFI_IFLAG_SKIP;
452
453 if (ioctl(dev, DIOCCLRIFFLAG, &pi))
454 err(1, "DIOCCLRIFFLAG");
455 if ((opts & PF_OPT_QUIET) == 0)
456 fprintf(stderr, "pf: interface flags reset\n");
457 }
458 return (0);
459 }
460
461 int
pfctl_flush_eth_rules(int dev,int opts,char * anchorname)462 pfctl_flush_eth_rules(int dev, int opts, char *anchorname)
463 {
464 int ret;
465
466 ret = pfctl_clear_eth_rules(dev, anchorname);
467 if (ret != 0)
468 err(1, "pfctl_clear_eth_rules");
469
470 if ((opts & PF_OPT_QUIET) == 0)
471 fprintf(stderr, "Ethernet rules cleared\n");
472
473 return (ret);
474 }
475
476 int
pfctl_flush_rules(int dev,int opts,char * anchorname)477 pfctl_flush_rules(int dev, int opts, char *anchorname)
478 {
479 int ret;
480
481 ret = pfctl_clear_rules(dev, anchorname);
482 if (ret != 0)
483 err(1, "pfctl_clear_rules");
484 if ((opts & PF_OPT_QUIET) == 0)
485 fprintf(stderr, "rules cleared\n");
486 return (0);
487 }
488
489 int
pfctl_flush_nat(int dev,int opts,char * anchorname)490 pfctl_flush_nat(int dev, int opts, char *anchorname)
491 {
492 int ret;
493
494 ret = pfctl_clear_nat(dev, anchorname);
495 if (ret != 0)
496 err(1, "pfctl_clear_nat");
497 if ((opts & PF_OPT_QUIET) == 0)
498 fprintf(stderr, "nat cleared\n");
499 return (0);
500 }
501
502 int
pfctl_clear_altq(int dev,int opts)503 pfctl_clear_altq(int dev, int opts)
504 {
505 struct pfr_buffer t;
506
507 if (!altqsupport)
508 return (-1);
509 memset(&t, 0, sizeof(t));
510 t.pfrb_type = PFRB_TRANS;
511 if (pfctl_add_trans(&t, PF_RULESET_ALTQ, "") ||
512 pfctl_trans(dev, &t, DIOCXBEGIN, 0) ||
513 pfctl_trans(dev, &t, DIOCXCOMMIT, 0))
514 err(1, "pfctl_clear_altq");
515 if ((opts & PF_OPT_QUIET) == 0)
516 fprintf(stderr, "altq cleared\n");
517 return (0);
518 }
519
520 int
pfctl_clear_src_nodes(int dev,int opts)521 pfctl_clear_src_nodes(int dev, int opts)
522 {
523 if (ioctl(dev, DIOCCLRSRCNODES))
524 err(1, "DIOCCLRSRCNODES");
525 if ((opts & PF_OPT_QUIET) == 0)
526 fprintf(stderr, "source tracking entries cleared\n");
527 return (0);
528 }
529
530 int
pfctl_clear_iface_states(int dev,const char * iface,int opts)531 pfctl_clear_iface_states(int dev, const char *iface, int opts)
532 {
533 struct pfctl_kill kill;
534 unsigned int killed;
535 int ret;
536
537 memset(&kill, 0, sizeof(kill));
538 if (iface != NULL && strlcpy(kill.ifname, iface,
539 sizeof(kill.ifname)) >= sizeof(kill.ifname))
540 errx(1, "invalid interface: %s", iface);
541
542 if (opts & PF_OPT_KILLMATCH)
543 kill.kill_match = true;
544
545 if ((ret = pfctl_clear_states_h(pfh, &kill, &killed)) != 0)
546 errc(1, ret, "DIOCCLRSTATES");
547 if ((opts & PF_OPT_QUIET) == 0)
548 fprintf(stderr, "%d states cleared\n", killed);
549 return (0);
550 }
551
552 void
pfctl_addrprefix(char * addr,struct pf_addr * mask)553 pfctl_addrprefix(char *addr, struct pf_addr *mask)
554 {
555 char *p;
556 const char *errstr;
557 int prefix, ret_ga, q, r;
558 struct addrinfo hints, *res;
559
560 if ((p = strchr(addr, '/')) == NULL)
561 return;
562
563 *p++ = '\0';
564 prefix = strtonum(p, 0, 128, &errstr);
565 if (errstr)
566 errx(1, "prefix is %s: %s", errstr, p);
567
568 bzero(&hints, sizeof(hints));
569 /* prefix only with numeric addresses */
570 hints.ai_flags |= AI_NUMERICHOST;
571
572 if ((ret_ga = getaddrinfo(addr, NULL, &hints, &res))) {
573 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
574 /* NOTREACHED */
575 }
576
577 if (res->ai_family == AF_INET && prefix > 32)
578 errx(1, "prefix too long for AF_INET");
579 else if (res->ai_family == AF_INET6 && prefix > 128)
580 errx(1, "prefix too long for AF_INET6");
581
582 q = prefix >> 3;
583 r = prefix & 7;
584 switch (res->ai_family) {
585 case AF_INET:
586 bzero(&mask->v4, sizeof(mask->v4));
587 mask->v4.s_addr = htonl((u_int32_t)
588 (0xffffffffffULL << (32 - prefix)));
589 break;
590 case AF_INET6:
591 bzero(&mask->v6, sizeof(mask->v6));
592 if (q > 0)
593 memset((void *)&mask->v6, 0xff, q);
594 if (r > 0)
595 *((u_char *)&mask->v6 + q) =
596 (0xff00 >> r) & 0xff;
597 break;
598 }
599 freeaddrinfo(res);
600 }
601
602 int
pfctl_kill_src_nodes(int dev,const char * iface,int opts)603 pfctl_kill_src_nodes(int dev, const char *iface, int opts)
604 {
605 struct pfioc_src_node_kill psnk;
606 struct addrinfo *res[2], *resp[2];
607 struct sockaddr last_src, last_dst;
608 int killed, sources, dests;
609 int ret_ga;
610
611 killed = sources = dests = 0;
612
613 memset(&psnk, 0, sizeof(psnk));
614 memset(&psnk.psnk_src.addr.v.a.mask, 0xff,
615 sizeof(psnk.psnk_src.addr.v.a.mask));
616 memset(&last_src, 0xff, sizeof(last_src));
617 memset(&last_dst, 0xff, sizeof(last_dst));
618
619 pfctl_addrprefix(src_node_kill[0], &psnk.psnk_src.addr.v.a.mask);
620
621 if ((ret_ga = getaddrinfo(src_node_kill[0], NULL, NULL, &res[0]))) {
622 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
623 /* NOTREACHED */
624 }
625 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
626 if (resp[0]->ai_addr == NULL)
627 continue;
628 /* We get lots of duplicates. Catch the easy ones */
629 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
630 continue;
631 last_src = *(struct sockaddr *)resp[0]->ai_addr;
632
633 psnk.psnk_af = resp[0]->ai_family;
634 sources++;
635
636 if (psnk.psnk_af == AF_INET)
637 psnk.psnk_src.addr.v.a.addr.v4 =
638 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
639 else if (psnk.psnk_af == AF_INET6)
640 psnk.psnk_src.addr.v.a.addr.v6 =
641 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
642 sin6_addr;
643 else
644 errx(1, "Unknown address family %d", psnk.psnk_af);
645
646 if (src_node_killers > 1) {
647 dests = 0;
648 memset(&psnk.psnk_dst.addr.v.a.mask, 0xff,
649 sizeof(psnk.psnk_dst.addr.v.a.mask));
650 memset(&last_dst, 0xff, sizeof(last_dst));
651 pfctl_addrprefix(src_node_kill[1],
652 &psnk.psnk_dst.addr.v.a.mask);
653 if ((ret_ga = getaddrinfo(src_node_kill[1], NULL, NULL,
654 &res[1]))) {
655 errx(1, "getaddrinfo: %s",
656 gai_strerror(ret_ga));
657 /* NOTREACHED */
658 }
659 for (resp[1] = res[1]; resp[1];
660 resp[1] = resp[1]->ai_next) {
661 if (resp[1]->ai_addr == NULL)
662 continue;
663 if (psnk.psnk_af != resp[1]->ai_family)
664 continue;
665
666 if (memcmp(&last_dst, resp[1]->ai_addr,
667 sizeof(last_dst)) == 0)
668 continue;
669 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
670
671 dests++;
672
673 if (psnk.psnk_af == AF_INET)
674 psnk.psnk_dst.addr.v.a.addr.v4 =
675 ((struct sockaddr_in *)resp[1]->
676 ai_addr)->sin_addr;
677 else if (psnk.psnk_af == AF_INET6)
678 psnk.psnk_dst.addr.v.a.addr.v6 =
679 ((struct sockaddr_in6 *)resp[1]->
680 ai_addr)->sin6_addr;
681 else
682 errx(1, "Unknown address family %d",
683 psnk.psnk_af);
684
685 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
686 err(1, "DIOCKILLSRCNODES");
687 killed += psnk.psnk_killed;
688 }
689 freeaddrinfo(res[1]);
690 } else {
691 if (ioctl(dev, DIOCKILLSRCNODES, &psnk))
692 err(1, "DIOCKILLSRCNODES");
693 killed += psnk.psnk_killed;
694 }
695 }
696
697 freeaddrinfo(res[0]);
698
699 if ((opts & PF_OPT_QUIET) == 0)
700 fprintf(stderr, "killed %d src nodes from %d sources and %d "
701 "destinations\n", killed, sources, dests);
702 return (0);
703 }
704
705 int
pfctl_net_kill_states(int dev,const char * iface,int opts)706 pfctl_net_kill_states(int dev, const char *iface, int opts)
707 {
708 struct pfctl_kill kill;
709 struct addrinfo *res[2], *resp[2];
710 struct sockaddr last_src, last_dst;
711 unsigned int newkilled;
712 int killed, sources, dests;
713 int ret_ga, ret;
714
715 killed = sources = dests = 0;
716
717 memset(&kill, 0, sizeof(kill));
718 memset(&kill.src.addr.v.a.mask, 0xff,
719 sizeof(kill.src.addr.v.a.mask));
720 memset(&last_src, 0xff, sizeof(last_src));
721 memset(&last_dst, 0xff, sizeof(last_dst));
722 if (iface != NULL && strlcpy(kill.ifname, iface,
723 sizeof(kill.ifname)) >= sizeof(kill.ifname))
724 errx(1, "invalid interface: %s", iface);
725
726 if (state_killers == 2 && (strcmp(state_kill[0], "nat") == 0)) {
727 kill.nat = true;
728 state_kill[0] = state_kill[1];
729 state_killers = 1;
730 }
731
732 pfctl_addrprefix(state_kill[0], &kill.src.addr.v.a.mask);
733
734 if (opts & PF_OPT_KILLMATCH)
735 kill.kill_match = true;
736
737 if ((ret_ga = getaddrinfo(state_kill[0], NULL, NULL, &res[0]))) {
738 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
739 /* NOTREACHED */
740 }
741 for (resp[0] = res[0]; resp[0]; resp[0] = resp[0]->ai_next) {
742 if (resp[0]->ai_addr == NULL)
743 continue;
744 /* We get lots of duplicates. Catch the easy ones */
745 if (memcmp(&last_src, resp[0]->ai_addr, sizeof(last_src)) == 0)
746 continue;
747 last_src = *(struct sockaddr *)resp[0]->ai_addr;
748
749 kill.af = resp[0]->ai_family;
750 sources++;
751
752 if (kill.af == AF_INET)
753 kill.src.addr.v.a.addr.v4 =
754 ((struct sockaddr_in *)resp[0]->ai_addr)->sin_addr;
755 else if (kill.af == AF_INET6)
756 kill.src.addr.v.a.addr.v6 =
757 ((struct sockaddr_in6 *)resp[0]->ai_addr)->
758 sin6_addr;
759 else
760 errx(1, "Unknown address family %d", kill.af);
761
762 if (state_killers > 1) {
763 dests = 0;
764 memset(&kill.dst.addr.v.a.mask, 0xff,
765 sizeof(kill.dst.addr.v.a.mask));
766 memset(&last_dst, 0xff, sizeof(last_dst));
767 pfctl_addrprefix(state_kill[1],
768 &kill.dst.addr.v.a.mask);
769 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL,
770 &res[1]))) {
771 errx(1, "getaddrinfo: %s",
772 gai_strerror(ret_ga));
773 /* NOTREACHED */
774 }
775 for (resp[1] = res[1]; resp[1];
776 resp[1] = resp[1]->ai_next) {
777 if (resp[1]->ai_addr == NULL)
778 continue;
779 if (kill.af != resp[1]->ai_family)
780 continue;
781
782 if (memcmp(&last_dst, resp[1]->ai_addr,
783 sizeof(last_dst)) == 0)
784 continue;
785 last_dst = *(struct sockaddr *)resp[1]->ai_addr;
786
787 dests++;
788
789 if (kill.af == AF_INET)
790 kill.dst.addr.v.a.addr.v4 =
791 ((struct sockaddr_in *)resp[1]->
792 ai_addr)->sin_addr;
793 else if (kill.af == AF_INET6)
794 kill.dst.addr.v.a.addr.v6 =
795 ((struct sockaddr_in6 *)resp[1]->
796 ai_addr)->sin6_addr;
797 else
798 errx(1, "Unknown address family %d",
799 kill.af);
800
801 if ((ret = pfctl_kill_states_h(pfh, &kill, &newkilled)) != 0)
802 errc(1, ret, "DIOCKILLSTATES");
803 killed += newkilled;
804 }
805 freeaddrinfo(res[1]);
806 } else {
807 if ((ret = pfctl_kill_states_h(pfh, &kill, &newkilled)) != 0)
808 errc(1, ret, "DIOCKILLSTATES");
809 killed += newkilled;
810 }
811 }
812
813 freeaddrinfo(res[0]);
814
815 if ((opts & PF_OPT_QUIET) == 0)
816 fprintf(stderr, "killed %d states from %d sources and %d "
817 "destinations\n", killed, sources, dests);
818 return (0);
819 }
820
821 int
pfctl_gateway_kill_states(int dev,const char * iface,int opts)822 pfctl_gateway_kill_states(int dev, const char *iface, int opts)
823 {
824 struct pfctl_kill kill;
825 struct addrinfo *res, *resp;
826 struct sockaddr last_src;
827 unsigned int newkilled;
828 int killed = 0;
829 int ret_ga;
830
831 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
832 warnx("no gateway specified");
833 usage();
834 }
835
836 memset(&kill, 0, sizeof(kill));
837 memset(&kill.rt_addr.addr.v.a.mask, 0xff,
838 sizeof(kill.rt_addr.addr.v.a.mask));
839 memset(&last_src, 0xff, sizeof(last_src));
840 if (iface != NULL && strlcpy(kill.ifname, iface,
841 sizeof(kill.ifname)) >= sizeof(kill.ifname))
842 errx(1, "invalid interface: %s", iface);
843
844 if (opts & PF_OPT_KILLMATCH)
845 kill.kill_match = true;
846
847 pfctl_addrprefix(state_kill[1], &kill.rt_addr.addr.v.a.mask);
848
849 if ((ret_ga = getaddrinfo(state_kill[1], NULL, NULL, &res))) {
850 errx(1, "getaddrinfo: %s", gai_strerror(ret_ga));
851 /* NOTREACHED */
852 }
853 for (resp = res; resp; resp = resp->ai_next) {
854 if (resp->ai_addr == NULL)
855 continue;
856 /* We get lots of duplicates. Catch the easy ones */
857 if (memcmp(&last_src, resp->ai_addr, sizeof(last_src)) == 0)
858 continue;
859 last_src = *(struct sockaddr *)resp->ai_addr;
860
861 kill.af = resp->ai_family;
862
863 if (kill.af == AF_INET)
864 kill.rt_addr.addr.v.a.addr.v4 =
865 ((struct sockaddr_in *)resp->ai_addr)->sin_addr;
866 else if (kill.af == AF_INET6)
867 kill.rt_addr.addr.v.a.addr.v6 =
868 ((struct sockaddr_in6 *)resp->ai_addr)->
869 sin6_addr;
870 else
871 errx(1, "Unknown address family %d", kill.af);
872
873 if (pfctl_kill_states_h(pfh, &kill, &newkilled))
874 err(1, "DIOCKILLSTATES");
875 killed += newkilled;
876 }
877
878 freeaddrinfo(res);
879
880 if ((opts & PF_OPT_QUIET) == 0)
881 fprintf(stderr, "killed %d states\n", killed);
882 return (0);
883 }
884
885 int
pfctl_label_kill_states(int dev,const char * iface,int opts)886 pfctl_label_kill_states(int dev, const char *iface, int opts)
887 {
888 struct pfctl_kill kill;
889 unsigned int killed;
890 int ret;
891
892 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
893 warnx("no label specified");
894 usage();
895 }
896 memset(&kill, 0, sizeof(kill));
897 if (iface != NULL && strlcpy(kill.ifname, iface,
898 sizeof(kill.ifname)) >= sizeof(kill.ifname))
899 errx(1, "invalid interface: %s", iface);
900
901 if (opts & PF_OPT_KILLMATCH)
902 kill.kill_match = true;
903
904 if (strlcpy(kill.label, state_kill[1], sizeof(kill.label)) >=
905 sizeof(kill.label))
906 errx(1, "label too long: %s", state_kill[1]);
907
908 if ((ret = pfctl_kill_states_h(pfh, &kill, &killed)) != 0)
909 errc(1, ret, "DIOCKILLSTATES");
910
911 if ((opts & PF_OPT_QUIET) == 0)
912 fprintf(stderr, "killed %d states\n", killed);
913
914 return (0);
915 }
916
917 int
pfctl_id_kill_states(int dev,const char * iface,int opts)918 pfctl_id_kill_states(int dev, const char *iface, int opts)
919 {
920 struct pfctl_kill kill;
921 unsigned int killed;
922 int ret;
923
924 if (state_killers != 2 || (strlen(state_kill[1]) == 0)) {
925 warnx("no id specified");
926 usage();
927 }
928
929 memset(&kill, 0, sizeof(kill));
930
931 if (opts & PF_OPT_KILLMATCH)
932 kill.kill_match = true;
933
934 if ((sscanf(state_kill[1], "%jx/%x",
935 &kill.cmp.id, &kill.cmp.creatorid)) == 2) {
936 }
937 else if ((sscanf(state_kill[1], "%jx", &kill.cmp.id)) == 1) {
938 kill.cmp.creatorid = 0;
939 } else {
940 warnx("wrong id format specified");
941 usage();
942 }
943 if (kill.cmp.id == 0) {
944 warnx("cannot kill id 0");
945 usage();
946 }
947
948 if ((ret = pfctl_kill_states_h(pfh, &kill, &killed)) != 0)
949 errc(1, ret, "DIOCKILLSTATES");
950
951 if ((opts & PF_OPT_QUIET) == 0)
952 fprintf(stderr, "killed %d states\n", killed);
953
954 return (0);
955 }
956
957 int
pfctl_get_pool(int dev,struct pfctl_pool * pool,u_int32_t nr,u_int32_t ticket,int r_action,char * anchorname,int which)958 pfctl_get_pool(int dev, struct pfctl_pool *pool, u_int32_t nr,
959 u_int32_t ticket, int r_action, char *anchorname, int which)
960 {
961 struct pfioc_pooladdr pp;
962 struct pf_pooladdr *pa;
963 u_int32_t pnr, mpnr;
964 int ret;
965
966 memset(&pp, 0, sizeof(pp));
967 if ((ret = pfctl_get_addrs(pfh, ticket, nr, r_action, anchorname, &mpnr, which)) != 0) {
968 warnc(ret, "DIOCGETADDRS");
969 return (-1);
970 }
971
972 TAILQ_INIT(&pool->list);
973 for (pnr = 0; pnr < mpnr; ++pnr) {
974 if ((ret = pfctl_get_addr(pfh, ticket, nr, r_action, anchorname, pnr, &pp, which)) != 0) {
975 warnc(ret, "DIOCGETADDR");
976 return (-1);
977 }
978 pa = calloc(1, sizeof(struct pf_pooladdr));
979 if (pa == NULL)
980 err(1, "calloc");
981 bcopy(&pp.addr, pa, sizeof(struct pf_pooladdr));
982 TAILQ_INSERT_TAIL(&pool->list, pa, entries);
983 }
984
985 return (0);
986 }
987
988 void
pfctl_move_pool(struct pfctl_pool * src,struct pfctl_pool * dst)989 pfctl_move_pool(struct pfctl_pool *src, struct pfctl_pool *dst)
990 {
991 struct pf_pooladdr *pa;
992
993 while ((pa = TAILQ_FIRST(&src->list)) != NULL) {
994 TAILQ_REMOVE(&src->list, pa, entries);
995 TAILQ_INSERT_TAIL(&dst->list, pa, entries);
996 }
997 }
998
999 void
pfctl_clear_pool(struct pfctl_pool * pool)1000 pfctl_clear_pool(struct pfctl_pool *pool)
1001 {
1002 struct pf_pooladdr *pa;
1003
1004 while ((pa = TAILQ_FIRST(&pool->list)) != NULL) {
1005 TAILQ_REMOVE(&pool->list, pa, entries);
1006 free(pa);
1007 }
1008 }
1009
1010 void
pfctl_print_eth_rule_counters(struct pfctl_eth_rule * rule,int opts)1011 pfctl_print_eth_rule_counters(struct pfctl_eth_rule *rule, int opts)
1012 {
1013 if (opts & PF_OPT_VERBOSE) {
1014 printf(" [ Evaluations: %-8llu Packets: %-8llu "
1015 "Bytes: %-10llu]\n",
1016 (unsigned long long)rule->evaluations,
1017 (unsigned long long)(rule->packets[0] +
1018 rule->packets[1]),
1019 (unsigned long long)(rule->bytes[0] +
1020 rule->bytes[1]));
1021 }
1022 if (opts & PF_OPT_VERBOSE2) {
1023 char timestr[30];
1024
1025 if (rule->last_active_timestamp != 0) {
1026 bcopy(ctime(&rule->last_active_timestamp), timestr,
1027 sizeof(timestr));
1028 *strchr(timestr, '\n') = '\0';
1029 } else {
1030 snprintf(timestr, sizeof(timestr), "N/A");
1031 }
1032 printf(" [ Last Active Time: %s ]\n", timestr);
1033 }
1034 }
1035
1036 void
pfctl_print_rule_counters(struct pfctl_rule * rule,int opts)1037 pfctl_print_rule_counters(struct pfctl_rule *rule, int opts)
1038 {
1039 if (opts & PF_OPT_DEBUG) {
1040 const char *t[PF_SKIP_COUNT] = { "i", "d", "f",
1041 "p", "sa", "da", "sp", "dp" };
1042 int i;
1043
1044 printf(" [ Skip steps: ");
1045 for (i = 0; i < PF_SKIP_COUNT; ++i) {
1046 if (rule->skip[i].nr == rule->nr + 1)
1047 continue;
1048 printf("%s=", t[i]);
1049 if (rule->skip[i].nr == -1)
1050 printf("end ");
1051 else
1052 printf("%u ", rule->skip[i].nr);
1053 }
1054 printf("]\n");
1055
1056 printf(" [ queue: qname=%s qid=%u pqname=%s pqid=%u ]\n",
1057 rule->qname, rule->qid, rule->pqname, rule->pqid);
1058 }
1059 if (opts & PF_OPT_VERBOSE) {
1060 printf(" [ Evaluations: %-8llu Packets: %-8llu "
1061 "Bytes: %-10llu States: %-6ju]\n",
1062 (unsigned long long)rule->evaluations,
1063 (unsigned long long)(rule->packets[0] +
1064 rule->packets[1]),
1065 (unsigned long long)(rule->bytes[0] +
1066 rule->bytes[1]), (uintmax_t)rule->states_cur);
1067 printf(" [ Source Nodes: %-6ju "
1068 "Limit: %-6ju "
1069 "NAT/RDR: %-6ju "
1070 "Route: %-6ju "
1071 "]\n",
1072 (uintmax_t)rule->src_nodes,
1073 (uintmax_t)rule->src_nodes_type[PF_SN_LIMIT],
1074 (uintmax_t)rule->src_nodes_type[PF_SN_NAT],
1075 (uintmax_t)rule->src_nodes_type[PF_SN_ROUTE]);
1076 if (!(opts & PF_OPT_DEBUG))
1077 printf(" [ Inserted: uid %u pid %u "
1078 "State Creations: %-6ju]\n",
1079 (unsigned)rule->cuid, (unsigned)rule->cpid,
1080 (uintmax_t)rule->states_tot);
1081 }
1082 if (opts & PF_OPT_VERBOSE2) {
1083 char timestr[30];
1084 if (rule->last_active_timestamp != 0) {
1085 bcopy(ctime(&rule->last_active_timestamp), timestr,
1086 sizeof(timestr));
1087 *strchr(timestr, '\n') = '\0';
1088 } else {
1089 snprintf(timestr, sizeof(timestr), "N/A");
1090 }
1091 printf(" [ Last Active Time: %s ]\n", timestr);
1092 }
1093 }
1094
1095 void
pfctl_print_title(char * title)1096 pfctl_print_title(char *title)
1097 {
1098 if (!first_title)
1099 printf("\n");
1100 first_title = 0;
1101 printf("%s\n", title);
1102 }
1103
1104 int
pfctl_show_eth_rules(int dev,char * path,int opts,enum pfctl_show format,char * anchorname,int depth,int wildcard)1105 pfctl_show_eth_rules(int dev, char *path, int opts, enum pfctl_show format,
1106 char *anchorname, int depth, int wildcard)
1107 {
1108 char anchor_call[MAXPATHLEN];
1109 struct pfctl_eth_rules_info info;
1110 struct pfctl_eth_rule rule;
1111 int brace;
1112 int dotitle = opts & PF_OPT_SHOWALL;
1113 int len = strlen(path);
1114 int ret;
1115 char *npath, *p;
1116
1117 /*
1118 * Truncate a trailing / and * on an anchorname before searching for
1119 * the ruleset, this is syntactic sugar that doesn't actually make it
1120 * to the kernel.
1121 */
1122 if ((p = strrchr(anchorname, '/')) != NULL &&
1123 p[1] == '*' && p[2] == '\0') {
1124 p[0] = '\0';
1125 }
1126
1127 if (anchorname[0] == '/') {
1128 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1129 errx(1, "pfctl_rules: calloc");
1130 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1131 } else {
1132 if (path[0])
1133 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1134 else
1135 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1136 npath = path;
1137 }
1138
1139 /*
1140 * If this anchor was called with a wildcard path, go through
1141 * the rulesets in the anchor rather than the rules.
1142 */
1143 if (wildcard && (opts & PF_OPT_RECURSE)) {
1144 struct pfctl_eth_rulesets_info ri;
1145 u_int32_t mnr, nr;
1146
1147 if ((ret = pfctl_get_eth_rulesets_info(dev, &ri, npath)) != 0) {
1148 if (ret == EINVAL) {
1149 fprintf(stderr, "Anchor '%s' "
1150 "not found.\n", anchorname);
1151 } else {
1152 warnc(ret, "DIOCGETETHRULESETS");
1153 return (-1);
1154 }
1155 }
1156 mnr = ri.nr;
1157
1158 pfctl_print_eth_rule_counters(&rule, opts);
1159 for (nr = 0; nr < mnr; ++nr) {
1160 struct pfctl_eth_ruleset_info rs;
1161
1162 if ((ret = pfctl_get_eth_ruleset(dev, npath, nr, &rs)) != 0)
1163 errc(1, ret, "DIOCGETETHRULESET");
1164 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1165 printf("anchor \"%s\" all {\n", rs.name);
1166 pfctl_show_eth_rules(dev, npath, opts,
1167 format, rs.name, depth + 1, 0);
1168 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1169 printf("}\n");
1170 }
1171 path[len] = '\0';
1172 return (0);
1173 }
1174
1175 if ((ret = pfctl_get_eth_rules_info(dev, &info, path)) != 0) {
1176 warnc(ret, "DIOCGETETHRULES");
1177 return (-1);
1178 }
1179 for (int nr = 0; nr < info.nr; nr++) {
1180 brace = 0;
1181 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1182 if ((ret = pfctl_get_eth_rule(dev, nr, info.ticket, path, &rule,
1183 opts & PF_OPT_CLRRULECTRS, anchor_call)) != 0) {
1184 warnc(ret, "DIOCGETETHRULE");
1185 return (-1);
1186 }
1187 if (anchor_call[0] &&
1188 ((((p = strrchr(anchor_call, '_')) != NULL) &&
1189 (p == anchor_call ||
1190 *(--p) == '/')) || (opts & PF_OPT_RECURSE))) {
1191 brace++;
1192 int aclen = strlen(anchor_call);
1193 if (anchor_call[aclen - 1] == '*')
1194 anchor_call[aclen - 2] = '\0';
1195 }
1196 p = &anchor_call[0];
1197 if (dotitle) {
1198 pfctl_print_title("ETH RULES:");
1199 dotitle = 0;
1200 }
1201 print_eth_rule(&rule, anchor_call,
1202 opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG));
1203 if (brace)
1204 printf(" {\n");
1205 else
1206 printf("\n");
1207 pfctl_print_eth_rule_counters(&rule, opts);
1208 if (brace) {
1209 pfctl_show_eth_rules(dev, path, opts, format,
1210 p, depth + 1, rule.anchor_wildcard);
1211 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1212 printf("}\n");
1213 }
1214 }
1215
1216 path[len] = '\0';
1217 return (0);
1218 }
1219
1220 int
pfctl_show_rules(int dev,char * path,int opts,enum pfctl_show format,char * anchorname,int depth,int wildcard)1221 pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
1222 char *anchorname, int depth, int wildcard)
1223 {
1224 struct pfctl_rules_info ri;
1225 struct pfctl_rule rule;
1226 char anchor_call[MAXPATHLEN];
1227 u_int32_t nr, header = 0;
1228 int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
1229 int numeric = opts & PF_OPT_NUMERIC;
1230 int len = strlen(path), ret = 0;
1231 char *npath, *p;
1232
1233 /*
1234 * Truncate a trailing / and * on an anchorname before searching for
1235 * the ruleset, this is syntactic sugar that doesn't actually make it
1236 * to the kernel.
1237 */
1238 if ((p = strrchr(anchorname, '/')) != NULL &&
1239 p[1] == '*' && p[2] == '\0') {
1240 p[0] = '\0';
1241 }
1242
1243 if (anchorname[0] == '/') {
1244 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1245 errx(1, "pfctl_rules: calloc");
1246 strlcpy(npath, anchorname, MAXPATHLEN);
1247 } else {
1248 if (path[0])
1249 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1250 else
1251 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1252 npath = path;
1253 }
1254
1255 /*
1256 * If this anchor was called with a wildcard path, go through
1257 * the rulesets in the anchor rather than the rules.
1258 */
1259 if (wildcard && (opts & PF_OPT_RECURSE)) {
1260 struct pfioc_ruleset prs;
1261 u_int32_t mnr, nr;
1262
1263 memset(&prs, 0, sizeof(prs));
1264 if ((ret = pfctl_get_rulesets(pfh, npath, &mnr)) != 0) {
1265 if (ret == EINVAL)
1266 fprintf(stderr, "Anchor '%s' "
1267 "not found.\n", anchorname);
1268 else
1269 errc(1, ret, "DIOCGETRULESETS");
1270 }
1271
1272 pfctl_print_rule_counters(&rule, opts);
1273 for (nr = 0; nr < mnr; ++nr) {
1274 if ((ret = pfctl_get_ruleset(pfh, npath, nr, &prs)) != 0)
1275 errc(1, ret, "DIOCGETRULESET");
1276 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1277 printf("anchor \"%s\" all {\n", prs.name);
1278 pfctl_show_rules(dev, npath, opts,
1279 format, prs.name, depth + 1, 0);
1280 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1281 printf("}\n");
1282 }
1283 path[len] = '\0';
1284 return (0);
1285 }
1286
1287 if (opts & PF_OPT_SHOWALL) {
1288 ret = pfctl_get_rules_info_h(pfh, &ri, PF_PASS, path);
1289 if (ret != 0) {
1290 warnc(ret, "DIOCGETRULES");
1291 goto error;
1292 }
1293 header++;
1294 }
1295 ret = pfctl_get_rules_info_h(pfh, &ri, PF_SCRUB, path);
1296 if (ret != 0) {
1297 warnc(ret, "DIOCGETRULES");
1298 goto error;
1299 }
1300 if (opts & PF_OPT_SHOWALL) {
1301 if (format == PFCTL_SHOW_RULES && (ri.nr > 0 || header))
1302 pfctl_print_title("FILTER RULES:");
1303 else if (format == PFCTL_SHOW_LABELS && labels)
1304 pfctl_print_title("LABEL COUNTERS:");
1305 }
1306
1307 for (nr = 0; nr < ri.nr; ++nr) {
1308 if ((ret = pfctl_get_clear_rule_h(pfh, nr, ri.ticket, path, PF_SCRUB,
1309 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) != 0) {
1310 warnc(ret, "DIOCGETRULENV");
1311 goto error;
1312 }
1313
1314 if (pfctl_get_pool(dev, &rule.rdr,
1315 nr, ri.ticket, PF_SCRUB, path, PF_RDR) != 0)
1316 goto error;
1317
1318 if (pfctl_get_pool(dev, &rule.nat,
1319 nr, ri.ticket, PF_SCRUB, path, PF_NAT) != 0)
1320 goto error;
1321
1322 if (pfctl_get_pool(dev, &rule.route,
1323 nr, ri.ticket, PF_SCRUB, path, PF_RT) != 0)
1324 goto error;
1325
1326 switch (format) {
1327 case PFCTL_SHOW_LABELS:
1328 break;
1329 case PFCTL_SHOW_RULES:
1330 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1331 labels = 1;
1332 print_rule(&rule, anchor_call, rule_numbers, numeric);
1333 printf("\n");
1334 pfctl_print_rule_counters(&rule, opts);
1335 break;
1336 case PFCTL_SHOW_NOTHING:
1337 break;
1338 }
1339 pfctl_clear_pool(&rule.rdr);
1340 pfctl_clear_pool(&rule.nat);
1341 pfctl_clear_pool(&rule.route);
1342 }
1343 ret = pfctl_get_rules_info_h(pfh, &ri, PF_PASS, path);
1344 if (ret != 0) {
1345 warnc(ret, "DIOCGETRULES");
1346 goto error;
1347 }
1348 for (nr = 0; nr < ri.nr; ++nr) {
1349 if ((ret = pfctl_get_clear_rule_h(pfh, nr, ri.ticket, path, PF_PASS,
1350 &rule, anchor_call, opts & PF_OPT_CLRRULECTRS)) != 0) {
1351 warnc(ret, "DIOCGETRULE");
1352 goto error;
1353 }
1354
1355 if (pfctl_get_pool(dev, &rule.rdr,
1356 nr, ri.ticket, PF_PASS, path, PF_RDR) != 0)
1357 goto error;
1358
1359 if (pfctl_get_pool(dev, &rule.nat,
1360 nr, ri.ticket, PF_PASS, path, PF_NAT) != 0)
1361 goto error;
1362
1363 if (pfctl_get_pool(dev, &rule.route,
1364 nr, ri.ticket, PF_PASS, path, PF_RT) != 0)
1365 goto error;
1366
1367 switch (format) {
1368 case PFCTL_SHOW_LABELS: {
1369 bool show = false;
1370 int i = 0;
1371
1372 while (rule.label[i][0]) {
1373 printf("%s ", rule.label[i++]);
1374 show = true;
1375 }
1376
1377 if (show) {
1378 printf("%llu %llu %llu %llu"
1379 " %llu %llu %llu %ju\n",
1380 (unsigned long long)rule.evaluations,
1381 (unsigned long long)(rule.packets[0] +
1382 rule.packets[1]),
1383 (unsigned long long)(rule.bytes[0] +
1384 rule.bytes[1]),
1385 (unsigned long long)rule.packets[0],
1386 (unsigned long long)rule.bytes[0],
1387 (unsigned long long)rule.packets[1],
1388 (unsigned long long)rule.bytes[1],
1389 (uintmax_t)rule.states_tot);
1390 }
1391
1392 if (anchor_call[0] &&
1393 (((p = strrchr(anchor_call, '/')) ?
1394 p[1] == '_' : anchor_call[0] == '_') ||
1395 opts & PF_OPT_RECURSE)) {
1396 pfctl_show_rules(dev, npath, opts, format,
1397 anchor_call, depth, rule.anchor_wildcard);
1398 }
1399 break;
1400 }
1401 case PFCTL_SHOW_RULES:
1402 if (rule.label[0][0] && (opts & PF_OPT_SHOWALL))
1403 labels = 1;
1404 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1405 print_rule(&rule, anchor_call, rule_numbers, numeric);
1406
1407 /*
1408 * If this is a 'unnamed' brace notation
1409 * anchor, OR the user has explicitly requested
1410 * recursion, print it recursively.
1411 */
1412 if (anchor_call[0] &&
1413 (((p = strrchr(anchor_call, '/')) ?
1414 p[1] == '_' : anchor_call[0] == '_') ||
1415 opts & PF_OPT_RECURSE)) {
1416 printf(" {\n");
1417 pfctl_print_rule_counters(&rule, opts);
1418 pfctl_show_rules(dev, npath, opts, format,
1419 anchor_call, depth + 1,
1420 rule.anchor_wildcard);
1421 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1422 printf("}\n");
1423 } else {
1424 printf("\n");
1425 pfctl_print_rule_counters(&rule, opts);
1426 }
1427 break;
1428 case PFCTL_SHOW_NOTHING:
1429 break;
1430 }
1431 pfctl_clear_pool(&rule.rdr);
1432 pfctl_clear_pool(&rule.nat);
1433 }
1434
1435 error:
1436 path[len] = '\0';
1437 return (ret);
1438 }
1439
1440 int
pfctl_show_nat(int dev,char * path,int opts,char * anchorname,int depth,int wildcard)1441 pfctl_show_nat(int dev, char *path, int opts, char *anchorname, int depth,
1442 int wildcard)
1443 {
1444 struct pfctl_rules_info ri;
1445 struct pfctl_rule rule;
1446 char anchor_call[MAXPATHLEN];
1447 u_int32_t nr;
1448 static int nattype[3] = { PF_NAT, PF_RDR, PF_BINAT };
1449 int i, dotitle = opts & PF_OPT_SHOWALL;
1450 int ret;
1451 int len = strlen(path);
1452 char *npath, *p;
1453
1454 /*
1455 * Truncate a trailing / and * on an anchorname before searching for
1456 * the ruleset, this is syntactic sugar that doesn't actually make it
1457 * to the kernel.
1458 */
1459 if ((p = strrchr(anchorname, '/')) != NULL &&
1460 p[1] == '*' && p[2] == '\0') {
1461 p[0] = '\0';
1462 }
1463
1464 if (anchorname[0] == '/') {
1465 if ((npath = calloc(1, MAXPATHLEN)) == NULL)
1466 errx(1, "pfctl_rules: calloc");
1467 snprintf(npath, MAXPATHLEN, "%s", anchorname);
1468 } else {
1469 if (path[0])
1470 snprintf(&path[len], MAXPATHLEN - len, "/%s", anchorname);
1471 else
1472 snprintf(&path[len], MAXPATHLEN - len, "%s", anchorname);
1473 npath = path;
1474 }
1475
1476 /*
1477 * If this anchor was called with a wildcard path, go through
1478 * the rulesets in the anchor rather than the rules.
1479 */
1480 if (wildcard && (opts & PF_OPT_RECURSE)) {
1481 struct pfioc_ruleset prs;
1482 u_int32_t mnr, nr;
1483 memset(&prs, 0, sizeof(prs));
1484 if ((ret = pfctl_get_rulesets(pfh, npath, &mnr)) != 0) {
1485 if (ret == EINVAL)
1486 fprintf(stderr, "NAT anchor '%s' "
1487 "not found.\n", anchorname);
1488 else
1489 errc(1, ret, "DIOCGETRULESETS");
1490 }
1491
1492 pfctl_print_rule_counters(&rule, opts);
1493 for (nr = 0; nr < mnr; ++nr) {
1494 if ((ret = pfctl_get_ruleset(pfh, npath, nr, &prs)) != 0)
1495 errc(1, ret, "DIOCGETRULESET");
1496 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1497 printf("nat-anchor \"%s\" all {\n", prs.name);
1498 pfctl_show_nat(dev, npath, opts,
1499 prs.name, depth + 1, 0);
1500 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1501 printf("}\n");
1502 }
1503 path[len] = '\0';
1504 return (0);
1505 }
1506
1507 for (i = 0; i < 3; i++) {
1508 ret = pfctl_get_rules_info_h(pfh, &ri, nattype[i], path);
1509 if (ret != 0) {
1510 warnc(ret, "DIOCGETRULES");
1511 return (-1);
1512 }
1513 for (nr = 0; nr < ri.nr; ++nr) {
1514 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1515
1516 if ((ret = pfctl_get_rule_h(pfh, nr, ri.ticket, path,
1517 nattype[i], &rule, anchor_call)) != 0) {
1518 warnc(ret, "DIOCGETRULE");
1519 return (-1);
1520 }
1521 if (pfctl_get_pool(dev, &rule.rdr, nr,
1522 ri.ticket, nattype[i], path, PF_RDR) != 0)
1523 return (-1);
1524 if (pfctl_get_pool(dev, &rule.nat, nr,
1525 ri.ticket, nattype[i], path, PF_NAT) != 0)
1526 return (-1);
1527 if (pfctl_get_pool(dev, &rule.route, nr,
1528 ri.ticket, nattype[i], path, PF_RT) != 0)
1529 return (-1);
1530
1531 if (dotitle) {
1532 pfctl_print_title("TRANSLATION RULES:");
1533 dotitle = 0;
1534 }
1535 print_rule(&rule, anchor_call,
1536 opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
1537 if (anchor_call[0] &&
1538 (((p = strrchr(anchor_call, '/')) ?
1539 p[1] == '_' : anchor_call[0] == '_') ||
1540 opts & PF_OPT_RECURSE)) {
1541 printf(" {\n");
1542 pfctl_print_rule_counters(&rule, opts);
1543 pfctl_show_nat(dev, npath, opts, anchor_call,
1544 depth + 1, rule.anchor_wildcard);
1545 INDENT(depth, !(opts & PF_OPT_VERBOSE));
1546 printf("}\n");
1547 } else {
1548 printf("\n");
1549 pfctl_print_rule_counters(&rule, opts);
1550 }
1551 }
1552 }
1553 return (0);
1554 }
1555
1556 static int
pfctl_print_src_node(struct pfctl_src_node * sn,void * arg)1557 pfctl_print_src_node(struct pfctl_src_node *sn, void *arg)
1558 {
1559 int *opts = (int *)arg;
1560
1561 if (*opts & PF_OPT_SHOWALL) {
1562 pfctl_print_title("SOURCE TRACKING NODES:");
1563 *opts &= ~PF_OPT_SHOWALL;
1564 }
1565
1566 print_src_node(sn, *opts);
1567
1568 return (0);
1569 }
1570
1571 int
pfctl_show_src_nodes(int dev,int opts)1572 pfctl_show_src_nodes(int dev, int opts)
1573 {
1574 int error;
1575
1576 error = pfctl_get_srcnodes(pfh, pfctl_print_src_node, &opts);
1577
1578 return (error);
1579 }
1580
1581 struct pfctl_show_state_arg {
1582 int opts;
1583 int dotitle;
1584 const char *iface;
1585 };
1586
1587 static int
pfctl_show_state(struct pfctl_state * s,void * arg)1588 pfctl_show_state(struct pfctl_state *s, void *arg)
1589 {
1590 struct pfctl_show_state_arg *a = (struct pfctl_show_state_arg *)arg;
1591
1592 if (a->dotitle) {
1593 pfctl_print_title("STATES:");
1594 a->dotitle = 0;
1595 }
1596 print_state(s, a->opts);
1597
1598 return (0);
1599 }
1600
1601 int
pfctl_show_states(int dev,const char * iface,int opts)1602 pfctl_show_states(int dev, const char *iface, int opts)
1603 {
1604 struct pfctl_show_state_arg arg;
1605 struct pfctl_state_filter filter = {};
1606
1607 if (iface != NULL)
1608 strncpy(filter.ifname, iface, IFNAMSIZ);
1609
1610 arg.opts = opts;
1611 arg.dotitle = opts & PF_OPT_SHOWALL;
1612 arg.iface = iface;
1613
1614 if (pfctl_get_filtered_states_iter(&filter, pfctl_show_state, &arg))
1615 return (-1);
1616
1617 return (0);
1618 }
1619
1620 int
pfctl_show_status(int dev,int opts)1621 pfctl_show_status(int dev, int opts)
1622 {
1623 struct pfctl_status *status;
1624 struct pfctl_syncookies cookies;
1625 int ret;
1626
1627 if ((status = pfctl_get_status_h(pfh)) == NULL) {
1628 warn("DIOCGETSTATUS");
1629 return (-1);
1630 }
1631 if ((ret = pfctl_get_syncookies(dev, &cookies)) != 0) {
1632 pfctl_free_status(status);
1633 warnc(ret, "DIOCGETSYNCOOKIES");
1634 return (-1);
1635 }
1636 if (opts & PF_OPT_SHOWALL)
1637 pfctl_print_title("INFO:");
1638 print_status(status, &cookies, opts);
1639 pfctl_free_status(status);
1640 return (0);
1641 }
1642
1643 int
pfctl_show_running(int dev)1644 pfctl_show_running(int dev)
1645 {
1646 struct pfctl_status *status;
1647 int running;
1648
1649 if ((status = pfctl_get_status_h(pfh)) == NULL) {
1650 warn("DIOCGETSTATUS");
1651 return (-1);
1652 }
1653
1654 running = status->running;
1655
1656 print_running(status);
1657 pfctl_free_status(status);
1658 return (!running);
1659 }
1660
1661 int
pfctl_show_timeouts(int dev,int opts)1662 pfctl_show_timeouts(int dev, int opts)
1663 {
1664 uint32_t seconds;
1665 int i;
1666 int ret;
1667
1668 if (opts & PF_OPT_SHOWALL)
1669 pfctl_print_title("TIMEOUTS:");
1670 for (i = 0; pf_timeouts[i].name; i++) {
1671 if ((ret = pfctl_get_timeout(pfh, pf_timeouts[i].timeout, &seconds)) != 0)
1672 errc(1, ret, "DIOCGETTIMEOUT");
1673 printf("%-20s %10d", pf_timeouts[i].name, seconds);
1674 if (pf_timeouts[i].timeout >= PFTM_ADAPTIVE_START &&
1675 pf_timeouts[i].timeout <= PFTM_ADAPTIVE_END)
1676 printf(" states");
1677 else
1678 printf("s");
1679 printf("\n");
1680 }
1681 return (0);
1682
1683 }
1684
1685 int
pfctl_show_limits(int dev,int opts)1686 pfctl_show_limits(int dev, int opts)
1687 {
1688 unsigned int limit;
1689 int i;
1690 int ret;
1691
1692 if (opts & PF_OPT_SHOWALL)
1693 pfctl_print_title("LIMITS:");
1694 for (i = 0; pf_limits[i].name; i++) {
1695 if ((ret = pfctl_get_limit(pfh, pf_limits[i].index, &limit)) != 0)
1696 errc(1, ret, "DIOCGETLIMIT");
1697 printf("%-13s ", pf_limits[i].name);
1698 if (limit == UINT_MAX)
1699 printf("unlimited\n");
1700 else
1701 printf("hard limit %8u\n", limit);
1702 }
1703 return (0);
1704 }
1705
1706 void
pfctl_show_creators(int opts)1707 pfctl_show_creators(int opts)
1708 {
1709 int ret;
1710 uint32_t creators[16];
1711 size_t count = nitems(creators);
1712
1713 ret = pfctl_get_creatorids(pfh, creators, &count);
1714 if (ret != 0)
1715 errx(ret, "Failed to retrieve creators");
1716
1717 printf("Creator IDs:\n");
1718 for (size_t i = 0; i < count; i++)
1719 printf("%08x\n", creators[i]);
1720 }
1721
1722 /* callbacks for rule/nat/rdr/addr */
1723 int
pfctl_add_pool(struct pfctl * pf,struct pfctl_pool * p,sa_family_t af,int which)1724 pfctl_add_pool(struct pfctl *pf, struct pfctl_pool *p, sa_family_t af, int which)
1725 {
1726 struct pf_pooladdr *pa;
1727 int ret;
1728
1729 pf->paddr.af = af;
1730 TAILQ_FOREACH(pa, &p->list, entries) {
1731 memcpy(&pf->paddr.addr, pa, sizeof(struct pf_pooladdr));
1732 if ((pf->opts & PF_OPT_NOACTION) == 0) {
1733 if ((ret = pfctl_add_addr(pf->h, &pf->paddr, which)) != 0)
1734 errc(1, ret, "DIOCADDADDR");
1735 }
1736 }
1737 return (0);
1738 }
1739
1740 int
pfctl_append_rule(struct pfctl * pf,struct pfctl_rule * r,const char * anchor_call)1741 pfctl_append_rule(struct pfctl *pf, struct pfctl_rule *r,
1742 const char *anchor_call)
1743 {
1744 u_int8_t rs_num;
1745 struct pfctl_rule *rule;
1746 struct pfctl_ruleset *rs;
1747 char *p;
1748
1749 rs_num = pf_get_ruleset_number(r->action);
1750 if (rs_num == PF_RULESET_MAX)
1751 errx(1, "Invalid rule type %d", r->action);
1752
1753 rs = &pf->anchor->ruleset;
1754
1755 if (anchor_call[0] && r->anchor == NULL) {
1756 /*
1757 * Don't make non-brace anchors part of the main anchor pool.
1758 */
1759 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1760 err(1, "pfctl_append_rule: calloc");
1761
1762 pf_init_ruleset(&r->anchor->ruleset);
1763 r->anchor->ruleset.anchor = r->anchor;
1764 if (strlcpy(r->anchor->path, anchor_call,
1765 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1766 errx(1, "pfctl_append_rule: strlcpy");
1767 if ((p = strrchr(anchor_call, '/')) != NULL) {
1768 if (!strlen(p))
1769 err(1, "pfctl_append_rule: bad anchor name %s",
1770 anchor_call);
1771 } else
1772 p = (char *)anchor_call;
1773 if (strlcpy(r->anchor->name, p,
1774 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1775 errx(1, "pfctl_append_rule: strlcpy");
1776 }
1777
1778 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1779 err(1, "calloc");
1780 bcopy(r, rule, sizeof(*rule));
1781 TAILQ_INIT(&rule->rdr.list);
1782 pfctl_move_pool(&r->rdr, &rule->rdr);
1783 TAILQ_INIT(&rule->nat.list);
1784 pfctl_move_pool(&r->nat, &rule->nat);
1785 TAILQ_INIT(&rule->route.list);
1786 pfctl_move_pool(&r->route, &rule->route);
1787
1788 TAILQ_INSERT_TAIL(rs->rules[rs_num].active.ptr, rule, entries);
1789 return (0);
1790 }
1791
1792 int
pfctl_append_eth_rule(struct pfctl * pf,struct pfctl_eth_rule * r,const char * anchor_call)1793 pfctl_append_eth_rule(struct pfctl *pf, struct pfctl_eth_rule *r,
1794 const char *anchor_call)
1795 {
1796 struct pfctl_eth_rule *rule;
1797 struct pfctl_eth_ruleset *rs;
1798 char *p;
1799
1800 rs = &pf->eanchor->ruleset;
1801
1802 if (anchor_call[0] && r->anchor == NULL) {
1803 /*
1804 * Don't make non-brace anchors part of the main anchor pool.
1805 */
1806 if ((r->anchor = calloc(1, sizeof(*r->anchor))) == NULL)
1807 err(1, "pfctl_append_rule: calloc");
1808
1809 pf_init_eth_ruleset(&r->anchor->ruleset);
1810 r->anchor->ruleset.anchor = r->anchor;
1811 if (strlcpy(r->anchor->path, anchor_call,
1812 sizeof(rule->anchor->path)) >= sizeof(rule->anchor->path))
1813 errx(1, "pfctl_append_rule: strlcpy");
1814 if ((p = strrchr(anchor_call, '/')) != NULL) {
1815 if (!strlen(p))
1816 err(1, "pfctl_append_eth_rule: bad anchor name %s",
1817 anchor_call);
1818 } else
1819 p = (char *)anchor_call;
1820 if (strlcpy(r->anchor->name, p,
1821 sizeof(rule->anchor->name)) >= sizeof(rule->anchor->name))
1822 errx(1, "pfctl_append_eth_rule: strlcpy");
1823 }
1824
1825 if ((rule = calloc(1, sizeof(*rule))) == NULL)
1826 err(1, "calloc");
1827 bcopy(r, rule, sizeof(*rule));
1828
1829 TAILQ_INSERT_TAIL(&rs->rules, rule, entries);
1830 return (0);
1831 }
1832
1833 int
pfctl_eth_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_eth_anchor * a)1834 pfctl_eth_ruleset_trans(struct pfctl *pf, char *path,
1835 struct pfctl_eth_anchor *a)
1836 {
1837 int osize = pf->trans->pfrb_size;
1838
1839 if ((pf->loadopt & PFCTL_FLAG_ETH) != 0) {
1840 if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path))
1841 return (1);
1842 }
1843 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1844 return (5);
1845
1846 return (0);
1847 }
1848
1849 int
pfctl_ruleset_trans(struct pfctl * pf,char * path,struct pfctl_anchor * a,bool do_eth)1850 pfctl_ruleset_trans(struct pfctl *pf, char *path, struct pfctl_anchor *a, bool do_eth)
1851 {
1852 int osize = pf->trans->pfrb_size;
1853
1854 if ((pf->loadopt & PFCTL_FLAG_ETH) != 0 && do_eth) {
1855 if (pfctl_add_trans(pf->trans, PF_RULESET_ETH, path))
1856 return (1);
1857 }
1858 if ((pf->loadopt & PFCTL_FLAG_NAT) != 0) {
1859 if (pfctl_add_trans(pf->trans, PF_RULESET_NAT, path) ||
1860 pfctl_add_trans(pf->trans, PF_RULESET_BINAT, path) ||
1861 pfctl_add_trans(pf->trans, PF_RULESET_RDR, path))
1862 return (1);
1863 }
1864 if (a == pf->astack[0] && ((altqsupport &&
1865 (pf->loadopt & PFCTL_FLAG_ALTQ) != 0))) {
1866 if (pfctl_add_trans(pf->trans, PF_RULESET_ALTQ, path))
1867 return (2);
1868 }
1869 if ((pf->loadopt & PFCTL_FLAG_FILTER) != 0) {
1870 if (pfctl_add_trans(pf->trans, PF_RULESET_SCRUB, path) ||
1871 pfctl_add_trans(pf->trans, PF_RULESET_FILTER, path))
1872 return (3);
1873 }
1874 if (pf->loadopt & PFCTL_FLAG_TABLE)
1875 if (pfctl_add_trans(pf->trans, PF_RULESET_TABLE, path))
1876 return (4);
1877 if (pfctl_trans(pf->dev, pf->trans, DIOCXBEGIN, osize))
1878 return (5);
1879
1880 return (0);
1881 }
1882
1883 int
pfctl_load_eth_ruleset(struct pfctl * pf,char * path,struct pfctl_eth_ruleset * rs,int depth)1884 pfctl_load_eth_ruleset(struct pfctl *pf, char *path,
1885 struct pfctl_eth_ruleset *rs, int depth)
1886 {
1887 struct pfctl_eth_rule *r;
1888 int error, len = strlen(path);
1889 int brace = 0;
1890
1891 pf->eanchor = rs->anchor;
1892 if (path[0])
1893 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->eanchor->name);
1894 else
1895 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->eanchor->name);
1896
1897 if (depth) {
1898 if (TAILQ_FIRST(&rs->rules) != NULL) {
1899 brace++;
1900 if (pf->opts & PF_OPT_VERBOSE)
1901 printf(" {\n");
1902 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
1903 (error = pfctl_eth_ruleset_trans(pf,
1904 path, rs->anchor))) {
1905 printf("pfctl_load_eth_rulesets: "
1906 "pfctl_eth_ruleset_trans %d\n", error);
1907 goto error;
1908 }
1909 } else if (pf->opts & PF_OPT_VERBOSE)
1910 printf("\n");
1911 }
1912
1913 while ((r = TAILQ_FIRST(&rs->rules)) != NULL) {
1914 TAILQ_REMOVE(&rs->rules, r, entries);
1915
1916 error = pfctl_load_eth_rule(pf, path, r, depth);
1917 if (error)
1918 return (error);
1919
1920 if (r->anchor) {
1921 if ((error = pfctl_load_eth_ruleset(pf, path,
1922 &r->anchor->ruleset, depth + 1)))
1923 return (error);
1924 } else if (pf->opts & PF_OPT_VERBOSE)
1925 printf("\n");
1926 free(r);
1927 }
1928 if (brace && pf->opts & PF_OPT_VERBOSE) {
1929 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
1930 printf("}\n");
1931 }
1932 path[len] = '\0';
1933
1934 return (0);
1935 error:
1936 path[len] = '\0';
1937 return (error);
1938 }
1939
1940 int
pfctl_load_eth_rule(struct pfctl * pf,char * path,struct pfctl_eth_rule * r,int depth)1941 pfctl_load_eth_rule(struct pfctl *pf, char *path, struct pfctl_eth_rule *r,
1942 int depth)
1943 {
1944 char *name;
1945 char anchor[PF_ANCHOR_NAME_SIZE];
1946 int len = strlen(path);
1947 int ret;
1948
1949 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
1950 errx(1, "pfctl_load_eth_rule: strlcpy");
1951
1952 if (r->anchor) {
1953 if (r->anchor->match) {
1954 if (path[0])
1955 snprintf(&path[len], MAXPATHLEN - len,
1956 "/%s", r->anchor->name);
1957 else
1958 snprintf(&path[len], MAXPATHLEN - len,
1959 "%s", r->anchor->name);
1960 name = r->anchor->name;
1961 } else
1962 name = r->anchor->path;
1963 } else
1964 name = "";
1965
1966 if ((pf->opts & PF_OPT_NOACTION) == 0)
1967 if ((ret = pfctl_add_eth_rule(pf->dev, r, anchor, name,
1968 pf->eth_ticket)) != 0)
1969 errc(1, ret, "DIOCADDETHRULENV");
1970
1971 if (pf->opts & PF_OPT_VERBOSE) {
1972 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
1973 print_eth_rule(r, r->anchor ? r->anchor->name : "",
1974 pf->opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG));
1975 }
1976
1977 path[len] = '\0';
1978
1979 return (0);
1980 }
1981
1982 int
pfctl_load_ruleset(struct pfctl * pf,char * path,struct pfctl_ruleset * rs,int rs_num,int depth)1983 pfctl_load_ruleset(struct pfctl *pf, char *path, struct pfctl_ruleset *rs,
1984 int rs_num, int depth)
1985 {
1986 struct pfctl_rule *r;
1987 int error, len = strlen(path);
1988 int brace = 0;
1989
1990 pf->anchor = rs->anchor;
1991
1992 if (path[0])
1993 snprintf(&path[len], MAXPATHLEN - len, "/%s", pf->anchor->name);
1994 else
1995 snprintf(&path[len], MAXPATHLEN - len, "%s", pf->anchor->name);
1996
1997 if (depth) {
1998 if (TAILQ_FIRST(rs->rules[rs_num].active.ptr) != NULL) {
1999 brace++;
2000 if (pf->opts & PF_OPT_VERBOSE)
2001 printf(" {\n");
2002 if ((pf->opts & PF_OPT_NOACTION) == 0 &&
2003 (error = pfctl_ruleset_trans(pf,
2004 path, rs->anchor, false))) {
2005 printf("pfctl_load_rulesets: "
2006 "pfctl_ruleset_trans %d\n", error);
2007 goto error;
2008 }
2009 } else if (pf->opts & PF_OPT_VERBOSE)
2010 printf("\n");
2011
2012 }
2013
2014 if (pf->optimize && rs_num == PF_RULESET_FILTER)
2015 pfctl_optimize_ruleset(pf, rs);
2016
2017 while ((r = TAILQ_FIRST(rs->rules[rs_num].active.ptr)) != NULL) {
2018 TAILQ_REMOVE(rs->rules[rs_num].active.ptr, r, entries);
2019
2020 for (int i = 0; i < PF_RULE_MAX_LABEL_COUNT; i++)
2021 expand_label(r->label[i], PF_RULE_LABEL_SIZE, r);
2022 expand_label(r->tagname, PF_TAG_NAME_SIZE, r);
2023 expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r);
2024
2025 if ((error = pfctl_load_rule(pf, path, r, depth)))
2026 goto error;
2027 if (r->anchor) {
2028 if ((error = pfctl_load_ruleset(pf, path,
2029 &r->anchor->ruleset, rs_num, depth + 1)))
2030 goto error;
2031 } else if (pf->opts & PF_OPT_VERBOSE)
2032 printf("\n");
2033 free(r);
2034 }
2035 if (brace && pf->opts & PF_OPT_VERBOSE) {
2036 INDENT(depth - 1, (pf->opts & PF_OPT_VERBOSE));
2037 printf("}\n");
2038 }
2039 path[len] = '\0';
2040 return (0);
2041
2042 error:
2043 path[len] = '\0';
2044 return (error);
2045
2046 }
2047
2048 int
pfctl_load_rule(struct pfctl * pf,char * path,struct pfctl_rule * r,int depth)2049 pfctl_load_rule(struct pfctl *pf, char *path, struct pfctl_rule *r, int depth)
2050 {
2051 u_int8_t rs_num = pf_get_ruleset_number(r->action);
2052 char *name;
2053 u_int32_t ticket;
2054 char anchor[PF_ANCHOR_NAME_SIZE];
2055 int len = strlen(path);
2056 int error;
2057 bool was_present;
2058
2059 /* set up anchor before adding to path for anchor_call */
2060 if ((pf->opts & PF_OPT_NOACTION) == 0)
2061 ticket = pfctl_get_ticket(pf->trans, rs_num, path);
2062 if (strlcpy(anchor, path, sizeof(anchor)) >= sizeof(anchor))
2063 errx(1, "pfctl_load_rule: strlcpy");
2064
2065 if (r->anchor) {
2066 if (r->anchor->match) {
2067 if (path[0])
2068 snprintf(&path[len], MAXPATHLEN - len,
2069 "/%s", r->anchor->name);
2070 else
2071 snprintf(&path[len], MAXPATHLEN - len,
2072 "%s", r->anchor->name);
2073 name = r->anchor->name;
2074 } else
2075 name = r->anchor->path;
2076 } else
2077 name = "";
2078
2079 was_present = false;
2080 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2081 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2082 if ((error = pfctl_begin_addrs(pf->h,
2083 &pf->paddr.ticket)) != 0)
2084 errc(1, error, "DIOCBEGINADDRS");
2085 }
2086
2087 if (pfctl_add_pool(pf, &r->rdr, r->af, PF_RDR))
2088 return (1);
2089 if (pfctl_add_pool(pf, &r->nat, r->naf ? r->naf : r->af, PF_NAT))
2090 return (1);
2091 if (pfctl_add_pool(pf, &r->route, r->af, PF_RT))
2092 return (1);
2093 error = pfctl_add_rule_h(pf->h, r, anchor, name, ticket,
2094 pf->paddr.ticket);
2095 switch (error) {
2096 case 0:
2097 /* things worked, do nothing */
2098 break;
2099 case EEXIST:
2100 /* an identical rule is already present */
2101 was_present = true;
2102 break;
2103 default:
2104 errc(1, error, "DIOCADDRULE");
2105 }
2106 }
2107
2108 if (pf->opts & PF_OPT_VERBOSE) {
2109 INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
2110 print_rule(r, name,
2111 pf->opts & PF_OPT_VERBOSE2,
2112 pf->opts & PF_OPT_NUMERIC);
2113 if (was_present)
2114 printf(" -- rule was already present");
2115 }
2116 path[len] = '\0';
2117 pfctl_clear_pool(&r->rdr);
2118 pfctl_clear_pool(&r->nat);
2119 return (0);
2120 }
2121
2122 int
pfctl_add_altq(struct pfctl * pf,struct pf_altq * a)2123 pfctl_add_altq(struct pfctl *pf, struct pf_altq *a)
2124 {
2125 if (altqsupport &&
2126 (loadopt & PFCTL_FLAG_ALTQ) != 0) {
2127 memcpy(&pf->paltq->altq, a, sizeof(struct pf_altq));
2128 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2129 if (ioctl(pf->dev, DIOCADDALTQ, pf->paltq)) {
2130 if (errno == ENXIO)
2131 errx(1, "qtype not configured");
2132 else if (errno == ENODEV)
2133 errx(1, "%s: driver does not support "
2134 "altq", a->ifname);
2135 else
2136 err(1, "DIOCADDALTQ");
2137 }
2138 }
2139 pfaltq_store(&pf->paltq->altq);
2140 }
2141 return (0);
2142 }
2143
2144 int
pfctl_rules(int dev,char * filename,int opts,int optimize,char * anchorname,struct pfr_buffer * trans)2145 pfctl_rules(int dev, char *filename, int opts, int optimize,
2146 char *anchorname, struct pfr_buffer *trans)
2147 {
2148 #define ERR(x) do { warn(x); goto _error; } while(0)
2149 #define ERRX(x) do { warnx(x); goto _error; } while(0)
2150
2151 struct pfr_buffer *t, buf;
2152 struct pfioc_altq pa;
2153 struct pfctl pf;
2154 struct pfctl_ruleset *rs;
2155 struct pfctl_eth_ruleset *ethrs;
2156 struct pfr_table trs;
2157 char *path;
2158 int osize;
2159
2160 RB_INIT(&pf_anchors);
2161 memset(&pf_main_anchor, 0, sizeof(pf_main_anchor));
2162 pf_init_ruleset(&pf_main_anchor.ruleset);
2163 pf_main_anchor.ruleset.anchor = &pf_main_anchor;
2164
2165 memset(&pf_eth_main_anchor, 0, sizeof(pf_eth_main_anchor));
2166 pf_init_eth_ruleset(&pf_eth_main_anchor.ruleset);
2167 pf_eth_main_anchor.ruleset.anchor = &pf_eth_main_anchor;
2168
2169 if (trans == NULL) {
2170 bzero(&buf, sizeof(buf));
2171 buf.pfrb_type = PFRB_TRANS;
2172 t = &buf;
2173 osize = 0;
2174 } else {
2175 t = trans;
2176 osize = t->pfrb_size;
2177 }
2178
2179 memset(&pa, 0, sizeof(pa));
2180 pa.version = PFIOC_ALTQ_VERSION;
2181 memset(&pf, 0, sizeof(pf));
2182 memset(&trs, 0, sizeof(trs));
2183 if ((path = calloc(1, MAXPATHLEN)) == NULL)
2184 ERRX("pfctl_rules: calloc");
2185 if (strlcpy(trs.pfrt_anchor, anchorname,
2186 sizeof(trs.pfrt_anchor)) >= sizeof(trs.pfrt_anchor))
2187 ERRX("pfctl_rules: strlcpy");
2188 pf.dev = dev;
2189 pf.h = pfh;
2190 pf.opts = opts;
2191 pf.optimize = optimize;
2192 pf.loadopt = loadopt;
2193
2194 /* non-brace anchor, create without resolving the path */
2195 if ((pf.anchor = calloc(1, sizeof(*pf.anchor))) == NULL)
2196 ERRX("pfctl_rules: calloc");
2197 rs = &pf.anchor->ruleset;
2198 pf_init_ruleset(rs);
2199 rs->anchor = pf.anchor;
2200 if (strlcpy(pf.anchor->path, anchorname,
2201 sizeof(pf.anchor->path)) >= sizeof(pf.anchor->path))
2202 errx(1, "pfctl_rules: strlcpy");
2203 if (strlcpy(pf.anchor->name, anchorname,
2204 sizeof(pf.anchor->name)) >= sizeof(pf.anchor->name))
2205 errx(1, "pfctl_rules: strlcpy");
2206
2207
2208 pf.astack[0] = pf.anchor;
2209 pf.asd = 0;
2210 if (anchorname[0])
2211 pf.loadopt &= ~PFCTL_FLAG_ALTQ;
2212 pf.paltq = &pa;
2213 pf.trans = t;
2214 pfctl_init_options(&pf);
2215
2216 /* Set up ethernet anchor */
2217 if ((pf.eanchor = calloc(1, sizeof(*pf.eanchor))) == NULL)
2218 ERRX("pfctl_rules: calloc");
2219
2220 if (strlcpy(pf.eanchor->path, anchorname,
2221 sizeof(pf.eanchor->path)) >= sizeof(pf.eanchor->path))
2222 errx(1, "pfctl_rules: strlcpy");
2223 if (strlcpy(pf.eanchor->name, anchorname,
2224 sizeof(pf.eanchor->name)) >= sizeof(pf.eanchor->name))
2225 errx(1, "pfctl_rules: strlcpy");
2226
2227 ethrs = &pf.eanchor->ruleset;
2228 pf_init_eth_ruleset(ethrs);
2229 ethrs->anchor = pf.eanchor;
2230 pf.eastack[0] = pf.eanchor;
2231
2232 if ((opts & PF_OPT_NOACTION) == 0) {
2233 /*
2234 * XXX For the time being we need to open transactions for
2235 * the main ruleset before parsing, because tables are still
2236 * loaded at parse time.
2237 */
2238 if (pfctl_ruleset_trans(&pf, anchorname, pf.anchor, true))
2239 ERRX("pfctl_rules");
2240 if (pf.loadopt & PFCTL_FLAG_ETH)
2241 pf.eth_ticket = pfctl_get_ticket(t, PF_RULESET_ETH, anchorname);
2242 if (altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ))
2243 pa.ticket =
2244 pfctl_get_ticket(t, PF_RULESET_ALTQ, anchorname);
2245 if (pf.loadopt & PFCTL_FLAG_TABLE)
2246 pf.astack[0]->ruleset.tticket =
2247 pfctl_get_ticket(t, PF_RULESET_TABLE, anchorname);
2248 }
2249
2250 if (parse_config(filename, &pf) < 0) {
2251 if ((opts & PF_OPT_NOACTION) == 0)
2252 ERRX("Syntax error in config file: "
2253 "pf rules not loaded");
2254 else
2255 goto _error;
2256 }
2257 if (loadopt & PFCTL_FLAG_OPTION)
2258 pfctl_adjust_skip_ifaces(&pf);
2259
2260 if ((pf.loadopt & PFCTL_FLAG_FILTER &&
2261 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_SCRUB, 0))) ||
2262 (pf.loadopt & PFCTL_FLAG_ETH &&
2263 (pfctl_load_eth_ruleset(&pf, path, ethrs, 0))) ||
2264 (pf.loadopt & PFCTL_FLAG_NAT &&
2265 (pfctl_load_ruleset(&pf, path, rs, PF_RULESET_NAT, 0) ||
2266 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_RDR, 0) ||
2267 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_BINAT, 0))) ||
2268 (pf.loadopt & PFCTL_FLAG_FILTER &&
2269 pfctl_load_ruleset(&pf, path, rs, PF_RULESET_FILTER, 0))) {
2270 if ((opts & PF_OPT_NOACTION) == 0)
2271 ERRX("Unable to load rules into kernel");
2272 else
2273 goto _error;
2274 }
2275
2276 if ((altqsupport && (pf.loadopt & PFCTL_FLAG_ALTQ) != 0))
2277 if (check_commit_altq(dev, opts) != 0)
2278 ERRX("errors in altq config");
2279
2280 /* process "load anchor" directives */
2281 if (!anchorname[0])
2282 if (pfctl_load_anchors(dev, &pf, t) == -1)
2283 ERRX("load anchors");
2284
2285 if (trans == NULL && (opts & PF_OPT_NOACTION) == 0) {
2286 if (!anchorname[0])
2287 if (pfctl_load_options(&pf))
2288 goto _error;
2289 if (pfctl_trans(dev, t, DIOCXCOMMIT, osize))
2290 ERR("DIOCXCOMMIT");
2291 }
2292 free(path);
2293 return (0);
2294
2295 _error:
2296 if (trans == NULL) { /* main ruleset */
2297 if ((opts & PF_OPT_NOACTION) == 0)
2298 if (pfctl_trans(dev, t, DIOCXROLLBACK, osize))
2299 err(1, "DIOCXROLLBACK");
2300 exit(1);
2301 } else { /* sub ruleset */
2302 free(path);
2303 return (-1);
2304 }
2305
2306 #undef ERR
2307 #undef ERRX
2308 }
2309
2310 FILE *
pfctl_fopen(const char * name,const char * mode)2311 pfctl_fopen(const char *name, const char *mode)
2312 {
2313 struct stat st;
2314 FILE *fp;
2315
2316 fp = fopen(name, mode);
2317 if (fp == NULL)
2318 return (NULL);
2319 if (fstat(fileno(fp), &st)) {
2320 fclose(fp);
2321 return (NULL);
2322 }
2323 if (S_ISDIR(st.st_mode)) {
2324 fclose(fp);
2325 errno = EISDIR;
2326 return (NULL);
2327 }
2328 return (fp);
2329 }
2330
2331 void
pfctl_init_options(struct pfctl * pf)2332 pfctl_init_options(struct pfctl *pf)
2333 {
2334
2335 pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
2336 pf->timeout[PFTM_TCP_OPENING] = PFTM_TCP_OPENING_VAL;
2337 pf->timeout[PFTM_TCP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
2338 pf->timeout[PFTM_TCP_CLOSING] = PFTM_TCP_CLOSING_VAL;
2339 pf->timeout[PFTM_TCP_FIN_WAIT] = PFTM_TCP_FIN_WAIT_VAL;
2340 pf->timeout[PFTM_TCP_CLOSED] = PFTM_TCP_CLOSED_VAL;
2341 pf->timeout[PFTM_SCTP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
2342 pf->timeout[PFTM_SCTP_OPENING] = PFTM_TCP_OPENING_VAL;
2343 pf->timeout[PFTM_SCTP_ESTABLISHED] = PFTM_TCP_ESTABLISHED_VAL;
2344 pf->timeout[PFTM_SCTP_CLOSING] = PFTM_TCP_CLOSING_VAL;
2345 pf->timeout[PFTM_SCTP_CLOSED] = PFTM_TCP_CLOSED_VAL;
2346 pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
2347 pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
2348 pf->timeout[PFTM_UDP_MULTIPLE] = PFTM_UDP_MULTIPLE_VAL;
2349 pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
2350 pf->timeout[PFTM_ICMP_ERROR_REPLY] = PFTM_ICMP_ERROR_REPLY_VAL;
2351 pf->timeout[PFTM_OTHER_FIRST_PACKET] = PFTM_OTHER_FIRST_PACKET_VAL;
2352 pf->timeout[PFTM_OTHER_SINGLE] = PFTM_OTHER_SINGLE_VAL;
2353 pf->timeout[PFTM_OTHER_MULTIPLE] = PFTM_OTHER_MULTIPLE_VAL;
2354 pf->timeout[PFTM_FRAG] = PFTM_FRAG_VAL;
2355 pf->timeout[PFTM_INTERVAL] = PFTM_INTERVAL_VAL;
2356 pf->timeout[PFTM_SRC_NODE] = PFTM_SRC_NODE_VAL;
2357 pf->timeout[PFTM_TS_DIFF] = PFTM_TS_DIFF_VAL;
2358 pf->timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START;
2359 pf->timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END;
2360
2361 pf->limit[PF_LIMIT_STATES] = PFSTATE_HIWAT;
2362 pf->limit[PF_LIMIT_FRAGS] = PFFRAG_FRENT_HIWAT;
2363 pf->limit[PF_LIMIT_SRC_NODES] = PFSNODE_HIWAT;
2364 pf->limit[PF_LIMIT_TABLE_ENTRIES] = PFR_KENTRY_HIWAT;
2365
2366 pf->debug = PF_DEBUG_URGENT;
2367 pf->reassemble = 0;
2368
2369 pf->syncookies = false;
2370 pf->syncookieswat[0] = PF_SYNCOOKIES_LOWATPCT;
2371 pf->syncookieswat[1] = PF_SYNCOOKIES_HIWATPCT;
2372 }
2373
2374 int
pfctl_load_options(struct pfctl * pf)2375 pfctl_load_options(struct pfctl *pf)
2376 {
2377 int i, error = 0;
2378
2379 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2380 return (0);
2381
2382 /* load limits */
2383 for (i = 0; i < PF_LIMIT_MAX; i++) {
2384 if ((pf->opts & PF_OPT_MERGE) && !pf->limit_set[i])
2385 continue;
2386 if (pfctl_load_limit(pf, i, pf->limit[i]))
2387 error = 1;
2388 }
2389
2390 /*
2391 * If we've set the limit, but haven't explicitly set adaptive
2392 * timeouts, do it now with a start of 60% and end of 120%.
2393 */
2394 if (pf->limit_set[PF_LIMIT_STATES] &&
2395 !pf->timeout_set[PFTM_ADAPTIVE_START] &&
2396 !pf->timeout_set[PFTM_ADAPTIVE_END]) {
2397 pf->timeout[PFTM_ADAPTIVE_START] =
2398 (pf->limit[PF_LIMIT_STATES] / 10) * 6;
2399 pf->timeout_set[PFTM_ADAPTIVE_START] = 1;
2400 pf->timeout[PFTM_ADAPTIVE_END] =
2401 (pf->limit[PF_LIMIT_STATES] / 10) * 12;
2402 pf->timeout_set[PFTM_ADAPTIVE_END] = 1;
2403 }
2404
2405 /* load timeouts */
2406 for (i = 0; i < PFTM_MAX; i++) {
2407 if ((pf->opts & PF_OPT_MERGE) && !pf->timeout_set[i])
2408 continue;
2409 if (pfctl_load_timeout(pf, i, pf->timeout[i]))
2410 error = 1;
2411 }
2412
2413 /* load debug */
2414 if (!(pf->opts & PF_OPT_MERGE) || pf->debug_set)
2415 if (pfctl_load_debug(pf, pf->debug))
2416 error = 1;
2417
2418 /* load logif */
2419 if (!(pf->opts & PF_OPT_MERGE) || pf->ifname_set)
2420 if (pfctl_load_logif(pf, pf->ifname))
2421 error = 1;
2422
2423 /* load hostid */
2424 if (!(pf->opts & PF_OPT_MERGE) || pf->hostid_set)
2425 if (pfctl_load_hostid(pf, pf->hostid))
2426 error = 1;
2427
2428 /* load reassembly settings */
2429 if (!(pf->opts & PF_OPT_MERGE) || pf->reass_set)
2430 if (pfctl_load_reassembly(pf, pf->reassemble))
2431 error = 1;
2432
2433 /* load keepcounters */
2434 if (pfctl_set_keepcounters(pf->dev, pf->keep_counters))
2435 error = 1;
2436
2437 /* load syncookies settings */
2438 if (pfctl_load_syncookies(pf, pf->syncookies))
2439 error = 1;
2440
2441 return (error);
2442 }
2443
2444 int
pfctl_apply_limit(struct pfctl * pf,const char * opt,unsigned int limit)2445 pfctl_apply_limit(struct pfctl *pf, const char *opt, unsigned int limit)
2446 {
2447 int i;
2448
2449
2450 for (i = 0; pf_limits[i].name; i++) {
2451 if (strcasecmp(opt, pf_limits[i].name) == 0) {
2452 pf->limit[pf_limits[i].index] = limit;
2453 pf->limit_set[pf_limits[i].index] = 1;
2454 break;
2455 }
2456 }
2457 if (pf_limits[i].name == NULL) {
2458 warnx("Bad pool name.");
2459 return (1);
2460 }
2461
2462 if (pf->opts & PF_OPT_VERBOSE)
2463 printf("set limit %s %d\n", opt, limit);
2464
2465 return (0);
2466 }
2467
2468 int
pfctl_load_limit(struct pfctl * pf,unsigned int index,unsigned int limit)2469 pfctl_load_limit(struct pfctl *pf, unsigned int index, unsigned int limit)
2470 {
2471 if (pfctl_set_limit(pf->h, index, limit)) {
2472 if (errno == EBUSY)
2473 warnx("Current pool size exceeds requested %s limit %u",
2474 pf_limits[index].name, limit);
2475 else
2476 warnx("Cannot set %s limit to %u",
2477 pf_limits[index].name, limit);
2478 return (1);
2479 }
2480 return (0);
2481 }
2482
2483 int
pfctl_apply_timeout(struct pfctl * pf,const char * opt,int seconds,int quiet)2484 pfctl_apply_timeout(struct pfctl *pf, const char *opt, int seconds, int quiet)
2485 {
2486 int i;
2487
2488 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2489 return (0);
2490
2491 for (i = 0; pf_timeouts[i].name; i++) {
2492 if (strcasecmp(opt, pf_timeouts[i].name) == 0) {
2493 pf->timeout[pf_timeouts[i].timeout] = seconds;
2494 pf->timeout_set[pf_timeouts[i].timeout] = 1;
2495 break;
2496 }
2497 }
2498
2499 if (pf_timeouts[i].name == NULL) {
2500 warnx("Bad timeout name.");
2501 return (1);
2502 }
2503
2504
2505 if (pf->opts & PF_OPT_VERBOSE && ! quiet)
2506 printf("set timeout %s %d\n", opt, seconds);
2507
2508 return (0);
2509 }
2510
2511 int
pfctl_load_timeout(struct pfctl * pf,unsigned int timeout,unsigned int seconds)2512 pfctl_load_timeout(struct pfctl *pf, unsigned int timeout, unsigned int seconds)
2513 {
2514 if (pfctl_set_timeout(pf->h, timeout, seconds)) {
2515 warnx("DIOCSETTIMEOUT");
2516 return (1);
2517 }
2518 return (0);
2519 }
2520
2521 int
pfctl_set_reassembly(struct pfctl * pf,int on,int nodf)2522 pfctl_set_reassembly(struct pfctl *pf, int on, int nodf)
2523 {
2524 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2525 return (0);
2526
2527 pf->reass_set = 1;
2528 if (on) {
2529 pf->reassemble = PF_REASS_ENABLED;
2530 if (nodf)
2531 pf->reassemble |= PF_REASS_NODF;
2532 } else {
2533 pf->reassemble = 0;
2534 }
2535
2536 if (pf->opts & PF_OPT_VERBOSE)
2537 printf("set reassemble %s %s\n", on ? "yes" : "no",
2538 nodf ? "no-df" : "");
2539
2540 return (0);
2541 }
2542
2543 int
pfctl_set_optimization(struct pfctl * pf,const char * opt)2544 pfctl_set_optimization(struct pfctl *pf, const char *opt)
2545 {
2546 const struct pf_hint *hint;
2547 int i, r;
2548
2549 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2550 return (0);
2551
2552 for (i = 0; pf_hints[i].name; i++)
2553 if (strcasecmp(opt, pf_hints[i].name) == 0)
2554 break;
2555
2556 hint = pf_hints[i].hint;
2557 if (hint == NULL) {
2558 warnx("invalid state timeouts optimization");
2559 return (1);
2560 }
2561
2562 for (i = 0; hint[i].name; i++)
2563 if ((r = pfctl_apply_timeout(pf, hint[i].name,
2564 hint[i].timeout, 1)))
2565 return (r);
2566
2567 if (pf->opts & PF_OPT_VERBOSE)
2568 printf("set optimization %s\n", opt);
2569
2570 return (0);
2571 }
2572
2573 int
pfctl_set_logif(struct pfctl * pf,char * ifname)2574 pfctl_set_logif(struct pfctl *pf, char *ifname)
2575 {
2576
2577 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2578 return (0);
2579
2580 if (!strcmp(ifname, "none")) {
2581 free(pf->ifname);
2582 pf->ifname = NULL;
2583 } else {
2584 pf->ifname = strdup(ifname);
2585 if (!pf->ifname)
2586 errx(1, "pfctl_set_logif: strdup");
2587 }
2588 pf->ifname_set = 1;
2589
2590 if (pf->opts & PF_OPT_VERBOSE)
2591 printf("set loginterface %s\n", ifname);
2592
2593 return (0);
2594 }
2595
2596 int
pfctl_load_logif(struct pfctl * pf,char * ifname)2597 pfctl_load_logif(struct pfctl *pf, char *ifname)
2598 {
2599 if (ifname != NULL && strlen(ifname) >= IFNAMSIZ) {
2600 warnx("pfctl_load_logif: strlcpy");
2601 return (1);
2602 }
2603 return (pfctl_set_statusif(pfh, ifname ? ifname : ""));
2604 }
2605
2606 void
pfctl_set_hostid(struct pfctl * pf,u_int32_t hostid)2607 pfctl_set_hostid(struct pfctl *pf, u_int32_t hostid)
2608 {
2609 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2610 return;
2611
2612 HTONL(hostid);
2613
2614 pf->hostid = hostid;
2615 pf->hostid_set = 1;
2616
2617 if (pf->opts & PF_OPT_VERBOSE)
2618 printf("set hostid 0x%08x\n", ntohl(hostid));
2619 }
2620
2621 int
pfctl_load_hostid(struct pfctl * pf,u_int32_t hostid)2622 pfctl_load_hostid(struct pfctl *pf, u_int32_t hostid)
2623 {
2624 if (ioctl(dev, DIOCSETHOSTID, &hostid)) {
2625 warnx("DIOCSETHOSTID");
2626 return (1);
2627 }
2628 return (0);
2629 }
2630
2631 int
pfctl_load_reassembly(struct pfctl * pf,u_int32_t reassembly)2632 pfctl_load_reassembly(struct pfctl *pf, u_int32_t reassembly)
2633 {
2634 if (ioctl(dev, DIOCSETREASS, &reassembly)) {
2635 warnx("DIOCSETREASS");
2636 return (1);
2637 }
2638 return (0);
2639 }
2640
2641 int
pfctl_load_syncookies(struct pfctl * pf,u_int8_t val)2642 pfctl_load_syncookies(struct pfctl *pf, u_int8_t val)
2643 {
2644 struct pfctl_syncookies cookies;
2645
2646 bzero(&cookies, sizeof(cookies));
2647
2648 cookies.mode = val;
2649 cookies.lowwater = pf->syncookieswat[0];
2650 cookies.highwater = pf->syncookieswat[1];
2651
2652 if (pfctl_set_syncookies(dev, &cookies)) {
2653 warnx("DIOCSETSYNCOOKIES");
2654 return (1);
2655 }
2656 return (0);
2657 }
2658
2659 int
pfctl_cfg_syncookies(struct pfctl * pf,uint8_t val,struct pfctl_watermarks * w)2660 pfctl_cfg_syncookies(struct pfctl *pf, uint8_t val, struct pfctl_watermarks *w)
2661 {
2662 if (val != PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2663 warnx("syncookies start/end only apply to adaptive");
2664 return (1);
2665 }
2666 if (val == PF_SYNCOOKIES_ADAPTIVE && w != NULL) {
2667 if (!w->hi)
2668 w->hi = PF_SYNCOOKIES_HIWATPCT;
2669 if (!w->lo)
2670 w->lo = w->hi / 2;
2671 if (w->lo >= w->hi) {
2672 warnx("start must be higher than end");
2673 return (1);
2674 }
2675 pf->syncookieswat[0] = w->lo;
2676 pf->syncookieswat[1] = w->hi;
2677 pf->syncookieswat_set = 1;
2678 }
2679
2680 if (pf->opts & PF_OPT_VERBOSE) {
2681 if (val == PF_SYNCOOKIES_NEVER)
2682 printf("set syncookies never\n");
2683 else if (val == PF_SYNCOOKIES_ALWAYS)
2684 printf("set syncookies always\n");
2685 else if (val == PF_SYNCOOKIES_ADAPTIVE) {
2686 if (pf->syncookieswat_set)
2687 printf("set syncookies adaptive (start %u%%, "
2688 "end %u%%)\n", pf->syncookieswat[1],
2689 pf->syncookieswat[0]);
2690 else
2691 printf("set syncookies adaptive\n");
2692 } else { /* cannot happen */
2693 warnx("king bula ate all syncookies");
2694 return (1);
2695 }
2696 }
2697
2698 pf->syncookies = val;
2699 return (0);
2700 }
2701
2702 int
pfctl_do_set_debug(struct pfctl * pf,char * d)2703 pfctl_do_set_debug(struct pfctl *pf, char *d)
2704 {
2705 u_int32_t level;
2706 int ret;
2707
2708 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2709 return (0);
2710
2711 if (!strcmp(d, "none"))
2712 pf->debug = PF_DEBUG_NONE;
2713 else if (!strcmp(d, "urgent"))
2714 pf->debug = PF_DEBUG_URGENT;
2715 else if (!strcmp(d, "misc"))
2716 pf->debug = PF_DEBUG_MISC;
2717 else if (!strcmp(d, "loud"))
2718 pf->debug = PF_DEBUG_NOISY;
2719 else {
2720 warnx("unknown debug level \"%s\"", d);
2721 return (-1);
2722 }
2723
2724 pf->debug_set = 1;
2725 level = pf->debug;
2726
2727 if ((pf->opts & PF_OPT_NOACTION) == 0)
2728 if ((ret = pfctl_set_debug(pfh, level)) != 0)
2729 errc(1, ret, "DIOCSETDEBUG");
2730
2731 if (pf->opts & PF_OPT_VERBOSE)
2732 printf("set debug %s\n", d);
2733
2734 return (0);
2735 }
2736
2737 int
pfctl_load_debug(struct pfctl * pf,unsigned int level)2738 pfctl_load_debug(struct pfctl *pf, unsigned int level)
2739 {
2740 if (pfctl_set_debug(pf->h, level)) {
2741 warnx("DIOCSETDEBUG");
2742 return (1);
2743 }
2744 return (0);
2745 }
2746
2747 int
pfctl_set_interface_flags(struct pfctl * pf,char * ifname,int flags,int how)2748 pfctl_set_interface_flags(struct pfctl *pf, char *ifname, int flags, int how)
2749 {
2750 struct pfioc_iface pi;
2751 struct node_host *h = NULL, *n = NULL;
2752
2753 if ((loadopt & PFCTL_FLAG_OPTION) == 0)
2754 return (0);
2755
2756 bzero(&pi, sizeof(pi));
2757
2758 pi.pfiio_flags = flags;
2759
2760 /* Make sure our cache matches the kernel. If we set or clear the flag
2761 * for a group this applies to all members. */
2762 h = ifa_grouplookup(ifname, 0);
2763 for (n = h; n != NULL; n = n->next)
2764 pfctl_set_interface_flags(pf, n->ifname, flags, how);
2765
2766 if (strlcpy(pi.pfiio_name, ifname, sizeof(pi.pfiio_name)) >=
2767 sizeof(pi.pfiio_name))
2768 errx(1, "pfctl_set_interface_flags: strlcpy");
2769
2770 if ((pf->opts & PF_OPT_NOACTION) == 0) {
2771 if (how == 0) {
2772 if (ioctl(pf->dev, DIOCCLRIFFLAG, &pi))
2773 err(1, "DIOCCLRIFFLAG");
2774 } else {
2775 if (ioctl(pf->dev, DIOCSETIFFLAG, &pi))
2776 err(1, "DIOCSETIFFLAG");
2777 pfctl_check_skip_ifaces(ifname);
2778 }
2779 }
2780 return (0);
2781 }
2782
2783 void
pfctl_debug(int dev,u_int32_t level,int opts)2784 pfctl_debug(int dev, u_int32_t level, int opts)
2785 {
2786 int ret;
2787
2788 if ((ret = pfctl_set_debug(pfh, level)) != 0)
2789 errc(1, ret, "DIOCSETDEBUG");
2790 if ((opts & PF_OPT_QUIET) == 0) {
2791 fprintf(stderr, "debug level set to '");
2792 switch (level) {
2793 case PF_DEBUG_NONE:
2794 fprintf(stderr, "none");
2795 break;
2796 case PF_DEBUG_URGENT:
2797 fprintf(stderr, "urgent");
2798 break;
2799 case PF_DEBUG_MISC:
2800 fprintf(stderr, "misc");
2801 break;
2802 case PF_DEBUG_NOISY:
2803 fprintf(stderr, "loud");
2804 break;
2805 default:
2806 fprintf(stderr, "<invalid>");
2807 break;
2808 }
2809 fprintf(stderr, "'\n");
2810 }
2811 }
2812
2813 int
pfctl_test_altqsupport(int dev,int opts)2814 pfctl_test_altqsupport(int dev, int opts)
2815 {
2816 struct pfioc_altq pa;
2817
2818 pa.version = PFIOC_ALTQ_VERSION;
2819 if (ioctl(dev, DIOCGETALTQS, &pa)) {
2820 if (errno == ENODEV) {
2821 if (opts & PF_OPT_VERBOSE)
2822 fprintf(stderr, "No ALTQ support in kernel\n"
2823 "ALTQ related functions disabled\n");
2824 return (0);
2825 } else
2826 err(1, "DIOCGETALTQS");
2827 }
2828 return (1);
2829 }
2830
2831 int
pfctl_show_anchors(int dev,int opts,char * anchorname)2832 pfctl_show_anchors(int dev, int opts, char *anchorname)
2833 {
2834 struct pfioc_ruleset pr;
2835 u_int32_t mnr, nr;
2836 int ret;
2837
2838 memset(&pr, 0, sizeof(pr));
2839 if ((ret = pfctl_get_rulesets(pfh, anchorname, &mnr)) != 0) {
2840 if (ret == EINVAL)
2841 fprintf(stderr, "Anchor '%s' not found.\n",
2842 anchorname);
2843 else
2844 errc(1, ret, "DIOCGETRULESETS");
2845 return (-1);
2846 }
2847 for (nr = 0; nr < mnr; ++nr) {
2848 char sub[MAXPATHLEN];
2849
2850 if ((ret = pfctl_get_ruleset(pfh, anchorname, nr, &pr)) != 0)
2851 errc(1, ret, "DIOCGETRULESET");
2852 if (!strcmp(pr.name, PF_RESERVED_ANCHOR))
2853 continue;
2854 sub[0] = 0;
2855 if (pr.path[0]) {
2856 strlcat(sub, pr.path, sizeof(sub));
2857 strlcat(sub, "/", sizeof(sub));
2858 }
2859 strlcat(sub, pr.name, sizeof(sub));
2860 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
2861 printf(" %s\n", sub);
2862 if ((opts & PF_OPT_VERBOSE) && pfctl_show_anchors(dev, opts, sub))
2863 return (-1);
2864 }
2865 return (0);
2866 }
2867
2868 int
pfctl_show_eth_anchors(int dev,int opts,char * anchorname)2869 pfctl_show_eth_anchors(int dev, int opts, char *anchorname)
2870 {
2871 struct pfctl_eth_rulesets_info ri;
2872 struct pfctl_eth_ruleset_info rs;
2873 int ret;
2874
2875 if ((ret = pfctl_get_eth_rulesets_info(dev, &ri, anchorname)) != 0) {
2876 if (ret == ENOENT)
2877 fprintf(stderr, "Anchor '%s' not found.\n",
2878 anchorname);
2879 else
2880 errc(1, ret, "DIOCGETETHRULESETS");
2881 return (-1);
2882 }
2883
2884 for (int nr = 0; nr < ri.nr; nr++) {
2885 char sub[MAXPATHLEN];
2886
2887 if ((ret = pfctl_get_eth_ruleset(dev, anchorname, nr, &rs)) != 0)
2888 errc(1, ret, "DIOCGETETHRULESET");
2889
2890 if (!strcmp(rs.name, PF_RESERVED_ANCHOR))
2891 continue;
2892 sub[0] = 0;
2893 if (rs.path[0]) {
2894 strlcat(sub, rs.path, sizeof(sub));
2895 strlcat(sub, "/", sizeof(sub));
2896 }
2897 strlcat(sub, rs.name, sizeof(sub));
2898 if (sub[0] != '_' || (opts & PF_OPT_VERBOSE))
2899 printf(" %s\n", sub);
2900 if ((opts & PF_OPT_VERBOSE) && pfctl_show_eth_anchors(dev, opts, sub))
2901 return (-1);
2902 }
2903 return (0);
2904 }
2905
2906 const char *
pfctl_lookup_option(char * cmd,const char * const * list)2907 pfctl_lookup_option(char *cmd, const char * const *list)
2908 {
2909 if (cmd != NULL && *cmd)
2910 for (; *list; list++)
2911 if (!strncmp(cmd, *list, strlen(cmd)))
2912 return (*list);
2913 return (NULL);
2914 }
2915
2916 int
main(int argc,char * argv[])2917 main(int argc, char *argv[])
2918 {
2919 int error = 0;
2920 int ch;
2921 int mode = O_RDONLY;
2922 int opts = 0;
2923 int optimize = PF_OPTIMIZE_BASIC;
2924 char anchorname[MAXPATHLEN];
2925 char *path;
2926
2927 if (argc < 2)
2928 usage();
2929
2930 while ((ch = getopt(argc, argv,
2931 "a:AdD:eqf:F:ghi:k:K:mMnNOo:Pp:rRs:t:T:vx:z")) != -1) {
2932 switch (ch) {
2933 case 'a':
2934 anchoropt = optarg;
2935 break;
2936 case 'd':
2937 opts |= PF_OPT_DISABLE;
2938 mode = O_RDWR;
2939 break;
2940 case 'D':
2941 if (pfctl_cmdline_symset(optarg) < 0)
2942 warnx("could not parse macro definition %s",
2943 optarg);
2944 break;
2945 case 'e':
2946 opts |= PF_OPT_ENABLE;
2947 mode = O_RDWR;
2948 break;
2949 case 'q':
2950 opts |= PF_OPT_QUIET;
2951 break;
2952 case 'F':
2953 clearopt = pfctl_lookup_option(optarg, clearopt_list);
2954 if (clearopt == NULL) {
2955 warnx("Unknown flush modifier '%s'", optarg);
2956 usage();
2957 }
2958 mode = O_RDWR;
2959 break;
2960 case 'i':
2961 ifaceopt = optarg;
2962 break;
2963 case 'k':
2964 if (state_killers >= 2) {
2965 warnx("can only specify -k twice");
2966 usage();
2967 /* NOTREACHED */
2968 }
2969 state_kill[state_killers++] = optarg;
2970 mode = O_RDWR;
2971 break;
2972 case 'K':
2973 if (src_node_killers >= 2) {
2974 warnx("can only specify -K twice");
2975 usage();
2976 /* NOTREACHED */
2977 }
2978 src_node_kill[src_node_killers++] = optarg;
2979 mode = O_RDWR;
2980 break;
2981 case 'm':
2982 opts |= PF_OPT_MERGE;
2983 break;
2984 case 'M':
2985 opts |= PF_OPT_KILLMATCH;
2986 break;
2987 case 'n':
2988 opts |= PF_OPT_NOACTION;
2989 break;
2990 case 'N':
2991 loadopt |= PFCTL_FLAG_NAT;
2992 break;
2993 case 'r':
2994 opts |= PF_OPT_USEDNS;
2995 break;
2996 case 'f':
2997 rulesopt = optarg;
2998 mode = O_RDWR;
2999 break;
3000 case 'g':
3001 opts |= PF_OPT_DEBUG;
3002 break;
3003 case 'A':
3004 loadopt |= PFCTL_FLAG_ALTQ;
3005 break;
3006 case 'R':
3007 loadopt |= PFCTL_FLAG_FILTER;
3008 break;
3009 case 'o':
3010 optiopt = pfctl_lookup_option(optarg, optiopt_list);
3011 if (optiopt == NULL) {
3012 warnx("Unknown optimization '%s'", optarg);
3013 usage();
3014 }
3015 opts |= PF_OPT_OPTIMIZE;
3016 break;
3017 case 'O':
3018 loadopt |= PFCTL_FLAG_OPTION;
3019 break;
3020 case 'p':
3021 pf_device = optarg;
3022 break;
3023 case 'P':
3024 opts |= PF_OPT_NUMERIC;
3025 break;
3026 case 's':
3027 showopt = pfctl_lookup_option(optarg, showopt_list);
3028 if (showopt == NULL) {
3029 warnx("Unknown show modifier '%s'", optarg);
3030 usage();
3031 }
3032 break;
3033 case 't':
3034 tableopt = optarg;
3035 break;
3036 case 'T':
3037 tblcmdopt = pfctl_lookup_option(optarg, tblcmdopt_list);
3038 if (tblcmdopt == NULL) {
3039 warnx("Unknown table command '%s'", optarg);
3040 usage();
3041 }
3042 break;
3043 case 'v':
3044 if (opts & PF_OPT_VERBOSE)
3045 opts |= PF_OPT_VERBOSE2;
3046 opts |= PF_OPT_VERBOSE;
3047 break;
3048 case 'x':
3049 debugopt = pfctl_lookup_option(optarg, debugopt_list);
3050 if (debugopt == NULL) {
3051 warnx("Unknown debug level '%s'", optarg);
3052 usage();
3053 }
3054 mode = O_RDWR;
3055 break;
3056 case 'z':
3057 opts |= PF_OPT_CLRRULECTRS;
3058 mode = O_RDWR;
3059 break;
3060 case 'h':
3061 /* FALLTHROUGH */
3062 default:
3063 usage();
3064 /* NOTREACHED */
3065 }
3066 }
3067
3068 if (tblcmdopt != NULL) {
3069 argc -= optind;
3070 argv += optind;
3071 ch = *tblcmdopt;
3072 if (ch == 'l') {
3073 loadopt |= PFCTL_FLAG_TABLE;
3074 tblcmdopt = NULL;
3075 } else
3076 mode = strchr("acdefkrz", ch) ? O_RDWR : O_RDONLY;
3077 } else if (argc != optind) {
3078 warnx("unknown command line argument: %s ...", argv[optind]);
3079 usage();
3080 /* NOTREACHED */
3081 }
3082 if (loadopt == 0)
3083 loadopt = ~0;
3084
3085 if ((path = calloc(1, MAXPATHLEN)) == NULL)
3086 errx(1, "pfctl: calloc");
3087 memset(anchorname, 0, sizeof(anchorname));
3088 if (anchoropt != NULL) {
3089 int len = strlen(anchoropt);
3090
3091 if (len >= 1 && anchoropt[len - 1] == '*') {
3092 if (len >= 2 && anchoropt[len - 2] == '/')
3093 anchoropt[len - 2] = '\0';
3094 else
3095 anchoropt[len - 1] = '\0';
3096 opts |= PF_OPT_RECURSE;
3097 }
3098 if (strlcpy(anchorname, anchoropt,
3099 sizeof(anchorname)) >= sizeof(anchorname))
3100 errx(1, "anchor name '%s' too long",
3101 anchoropt);
3102 loadopt &= PFCTL_FLAG_FILTER|PFCTL_FLAG_NAT|PFCTL_FLAG_TABLE|PFCTL_FLAG_ETH;
3103 }
3104
3105 if ((opts & PF_OPT_NOACTION) == 0) {
3106 dev = open(pf_device, mode);
3107 if (dev == -1)
3108 err(1, "%s", pf_device);
3109 altqsupport = pfctl_test_altqsupport(dev, opts);
3110 } else {
3111 dev = open(pf_device, O_RDONLY);
3112 if (dev >= 0)
3113 opts |= PF_OPT_DUMMYACTION;
3114 /* turn off options */
3115 opts &= ~ (PF_OPT_DISABLE | PF_OPT_ENABLE);
3116 clearopt = showopt = debugopt = NULL;
3117 #if !defined(ENABLE_ALTQ)
3118 altqsupport = 0;
3119 #else
3120 altqsupport = 1;
3121 #endif
3122 }
3123 pfh = pfctl_open(pf_device);
3124 if (pfh == NULL)
3125 err(1, "Failed to open netlink");
3126
3127 if (opts & PF_OPT_DISABLE)
3128 if (pfctl_disable(dev, opts))
3129 error = 1;
3130
3131 if (showopt != NULL) {
3132 switch (*showopt) {
3133 case 'A':
3134 pfctl_show_anchors(dev, opts, anchorname);
3135 if (opts & PF_OPT_VERBOSE2)
3136 printf("Ethernet:\n");
3137 pfctl_show_eth_anchors(dev, opts, anchorname);
3138 break;
3139 case 'r':
3140 pfctl_load_fingerprints(dev, opts);
3141 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_RULES,
3142 anchorname, 0, 0);
3143 break;
3144 case 'l':
3145 pfctl_load_fingerprints(dev, opts);
3146 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_LABELS,
3147 anchorname, 0, 0);
3148 break;
3149 case 'n':
3150 pfctl_load_fingerprints(dev, opts);
3151 pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
3152 break;
3153 case 'q':
3154 pfctl_show_altq(dev, ifaceopt, opts,
3155 opts & PF_OPT_VERBOSE2);
3156 break;
3157 case 's':
3158 pfctl_show_states(dev, ifaceopt, opts);
3159 break;
3160 case 'S':
3161 pfctl_show_src_nodes(dev, opts);
3162 break;
3163 case 'i':
3164 pfctl_show_status(dev, opts);
3165 break;
3166 case 'R':
3167 error = pfctl_show_running(dev);
3168 break;
3169 case 't':
3170 pfctl_show_timeouts(dev, opts);
3171 break;
3172 case 'm':
3173 pfctl_show_limits(dev, opts);
3174 break;
3175 case 'e':
3176 pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0,
3177 0);
3178 break;
3179 case 'a':
3180 opts |= PF_OPT_SHOWALL;
3181 pfctl_load_fingerprints(dev, opts);
3182
3183 pfctl_show_eth_rules(dev, path, opts, 0, anchorname, 0,
3184 0);
3185
3186 pfctl_show_nat(dev, path, opts, anchorname, 0, 0);
3187 pfctl_show_rules(dev, path, opts, 0, anchorname, 0, 0);
3188 pfctl_show_altq(dev, ifaceopt, opts, 0);
3189 pfctl_show_states(dev, ifaceopt, opts);
3190 pfctl_show_src_nodes(dev, opts);
3191 pfctl_show_status(dev, opts);
3192 pfctl_show_rules(dev, path, opts, 1, anchorname, 0, 0);
3193 pfctl_show_timeouts(dev, opts);
3194 pfctl_show_limits(dev, opts);
3195 pfctl_show_tables(anchorname, opts);
3196 pfctl_show_fingerprints(opts);
3197 break;
3198 case 'T':
3199 pfctl_show_tables(anchorname, opts);
3200 break;
3201 case 'o':
3202 pfctl_load_fingerprints(dev, opts);
3203 pfctl_show_fingerprints(opts);
3204 break;
3205 case 'I':
3206 pfctl_show_ifaces(ifaceopt, opts);
3207 break;
3208 case 'c':
3209 pfctl_show_creators(opts);
3210 break;
3211 }
3212 }
3213
3214 if ((opts & PF_OPT_CLRRULECTRS) && showopt == NULL) {
3215 pfctl_show_eth_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
3216 anchorname, 0, 0);
3217 pfctl_show_rules(dev, path, opts, PFCTL_SHOW_NOTHING,
3218 anchorname, 0, 0);
3219 }
3220
3221 if (clearopt != NULL) {
3222 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
3223 errx(1, "anchor names beginning with '_' cannot "
3224 "be modified from the command line");
3225
3226 switch (*clearopt) {
3227 case 'e':
3228 pfctl_flush_eth_rules(dev, opts, anchorname);
3229 break;
3230 case 'r':
3231 pfctl_flush_rules(dev, opts, anchorname);
3232 break;
3233 case 'n':
3234 pfctl_flush_nat(dev, opts, anchorname);
3235 break;
3236 case 'q':
3237 pfctl_clear_altq(dev, opts);
3238 break;
3239 case 's':
3240 pfctl_clear_iface_states(dev, ifaceopt, opts);
3241 break;
3242 case 'S':
3243 pfctl_clear_src_nodes(dev, opts);
3244 break;
3245 case 'i':
3246 pfctl_clear_stats(pfh, opts);
3247 break;
3248 case 'a':
3249 pfctl_flush_eth_rules(dev, opts, anchorname);
3250 pfctl_flush_rules(dev, opts, anchorname);
3251 pfctl_flush_nat(dev, opts, anchorname);
3252 pfctl_do_clear_tables(anchorname, opts);
3253 if (!*anchorname) {
3254 pfctl_clear_altq(dev, opts);
3255 pfctl_clear_iface_states(dev, ifaceopt, opts);
3256 pfctl_clear_src_nodes(dev, opts);
3257 pfctl_clear_stats(pfh, opts);
3258 pfctl_clear_fingerprints(dev, opts);
3259 pfctl_clear_interface_flags(dev, opts);
3260 }
3261 break;
3262 case 'o':
3263 pfctl_clear_fingerprints(dev, opts);
3264 break;
3265 case 'T':
3266 pfctl_do_clear_tables(anchorname, opts);
3267 break;
3268 }
3269 }
3270 if (state_killers) {
3271 if (!strcmp(state_kill[0], "label"))
3272 pfctl_label_kill_states(dev, ifaceopt, opts);
3273 else if (!strcmp(state_kill[0], "id"))
3274 pfctl_id_kill_states(dev, ifaceopt, opts);
3275 else if (!strcmp(state_kill[0], "gateway"))
3276 pfctl_gateway_kill_states(dev, ifaceopt, opts);
3277 else
3278 pfctl_net_kill_states(dev, ifaceopt, opts);
3279 }
3280
3281 if (src_node_killers)
3282 pfctl_kill_src_nodes(dev, ifaceopt, opts);
3283
3284 if (tblcmdopt != NULL) {
3285 error = pfctl_command_tables(argc, argv, tableopt,
3286 tblcmdopt, rulesopt, anchorname, opts);
3287 rulesopt = NULL;
3288 }
3289 if (optiopt != NULL) {
3290 switch (*optiopt) {
3291 case 'n':
3292 optimize = 0;
3293 break;
3294 case 'b':
3295 optimize |= PF_OPTIMIZE_BASIC;
3296 break;
3297 case 'o':
3298 case 'p':
3299 optimize |= PF_OPTIMIZE_PROFILE;
3300 break;
3301 }
3302 }
3303
3304 if ((rulesopt != NULL) && (loadopt & PFCTL_FLAG_OPTION) &&
3305 !anchorname[0] && !(opts & PF_OPT_NOACTION))
3306 if (pfctl_get_skip_ifaces())
3307 error = 1;
3308
3309 if (rulesopt != NULL && !(opts & PF_OPT_MERGE) &&
3310 !anchorname[0] && (loadopt & PFCTL_FLAG_OPTION))
3311 if (pfctl_file_fingerprints(dev, opts, PF_OSFP_FILE))
3312 error = 1;
3313
3314 if (rulesopt != NULL) {
3315 if (anchorname[0] == '_' || strstr(anchorname, "/_") != NULL)
3316 errx(1, "anchor names beginning with '_' cannot "
3317 "be modified from the command line");
3318 if (pfctl_rules(dev, rulesopt, opts, optimize,
3319 anchorname, NULL))
3320 error = 1;
3321 else if (!(opts & PF_OPT_NOACTION) &&
3322 (loadopt & PFCTL_FLAG_TABLE))
3323 warn_namespace_collision(NULL);
3324 }
3325
3326 if (opts & PF_OPT_ENABLE)
3327 if (pfctl_enable(dev, opts))
3328 error = 1;
3329
3330 if (debugopt != NULL) {
3331 switch (*debugopt) {
3332 case 'n':
3333 pfctl_debug(dev, PF_DEBUG_NONE, opts);
3334 break;
3335 case 'u':
3336 pfctl_debug(dev, PF_DEBUG_URGENT, opts);
3337 break;
3338 case 'm':
3339 pfctl_debug(dev, PF_DEBUG_MISC, opts);
3340 break;
3341 case 'l':
3342 pfctl_debug(dev, PF_DEBUG_NOISY, opts);
3343 break;
3344 }
3345 }
3346
3347 exit(error);
3348 }
3349