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