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