1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2021 Rubicon Communications, LLC (Netgate)
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $FreeBSD$
32 */
33
34 #include <sys/cdefs.h>
35
36 #include <sys/ioctl.h>
37 #include <sys/nv.h>
38 #include <sys/queue.h>
39 #include <sys/types.h>
40
41 #include <net/if.h>
42 #include <net/pfvar.h>
43 #include <netinet/in.h>
44
45 #include <assert.h>
46 #include <err.h>
47 #include <errno.h>
48 #include <stdlib.h>
49 #include <string.h>
50
51 #include "libpfctl.h"
52
53 const char* PFCTL_SYNCOOKIES_MODE_NAMES[] = {
54 "never",
55 "always",
56 "adaptive"
57 };
58
59 static int _pfctl_clear_states(int , const struct pfctl_kill *,
60 unsigned int *, uint64_t);
61
62 static int
pfctl_do_ioctl(int dev,uint cmd,size_t size,nvlist_t ** nvl)63 pfctl_do_ioctl(int dev, uint cmd, size_t size, nvlist_t **nvl)
64 {
65 struct pfioc_nv nv;
66 void *data;
67 size_t nvlen;
68 int ret;
69
70 data = nvlist_pack(*nvl, &nvlen);
71 if (nvlen > size)
72 size = nvlen;
73
74 retry:
75 nv.data = malloc(size);
76 memcpy(nv.data, data, nvlen);
77 free(data);
78
79 nv.len = nvlen;
80 nv.size = size;
81
82 ret = ioctl(dev, cmd, &nv);
83 if (ret == -1 && errno == ENOSPC) {
84 size *= 2;
85 free(nv.data);
86 goto retry;
87 }
88
89 nvlist_destroy(*nvl);
90 *nvl = NULL;
91
92 if (ret == 0) {
93 *nvl = nvlist_unpack(nv.data, nv.len, 0);
94 if (*nvl == NULL) {
95 free(nv.data);
96 return (EIO);
97 }
98 } else {
99 ret = errno;
100 }
101
102 free(nv.data);
103
104 return (ret);
105 }
106
107 static void
pf_nvuint_8_array(const nvlist_t * nvl,const char * name,size_t maxelems,uint8_t * numbers,size_t * nelems)108 pf_nvuint_8_array(const nvlist_t *nvl, const char *name, size_t maxelems,
109 uint8_t *numbers, size_t *nelems)
110 {
111 const uint64_t *tmp;
112 size_t elems;
113
114 tmp = nvlist_get_number_array(nvl, name, &elems);
115 assert(elems <= maxelems);
116
117 for (size_t i = 0; i < elems; i++)
118 numbers[i] = tmp[i];
119
120 if (nelems)
121 *nelems = elems;
122 }
123
124 static void
pf_nvuint_16_array(const nvlist_t * nvl,const char * name,size_t maxelems,uint16_t * numbers,size_t * nelems)125 pf_nvuint_16_array(const nvlist_t *nvl, const char *name, size_t maxelems,
126 uint16_t *numbers, size_t *nelems)
127 {
128 const uint64_t *tmp;
129 size_t elems;
130
131 tmp = nvlist_get_number_array(nvl, name, &elems);
132 assert(elems <= maxelems);
133
134 for (size_t i = 0; i < elems; i++)
135 numbers[i] = tmp[i];
136
137 if (nelems)
138 *nelems = elems;
139 }
140
141 static void
pf_nvuint_32_array(const nvlist_t * nvl,const char * name,size_t maxelems,uint32_t * numbers,size_t * nelems)142 pf_nvuint_32_array(const nvlist_t *nvl, const char *name, size_t maxelems,
143 uint32_t *numbers, size_t *nelems)
144 {
145 const uint64_t *tmp;
146 size_t elems;
147
148 tmp = nvlist_get_number_array(nvl, name, &elems);
149 assert(elems <= maxelems);
150
151 for (size_t i = 0; i < elems; i++)
152 numbers[i] = tmp[i];
153
154 if (nelems)
155 *nelems = elems;
156 }
157
158 static void
pf_nvuint_64_array(const nvlist_t * nvl,const char * name,size_t maxelems,uint64_t * numbers,size_t * nelems)159 pf_nvuint_64_array(const nvlist_t *nvl, const char *name, size_t maxelems,
160 uint64_t *numbers, size_t *nelems)
161 {
162 const uint64_t *tmp;
163 size_t elems;
164
165 tmp = nvlist_get_number_array(nvl, name, &elems);
166 assert(elems <= maxelems);
167
168 for (size_t i = 0; i < elems; i++)
169 numbers[i] = tmp[i];
170
171 if (nelems)
172 *nelems = elems;
173 }
174
175 static void
_pfctl_get_status_counters(const nvlist_t * nvl,struct pfctl_status_counters * counters)176 _pfctl_get_status_counters(const nvlist_t *nvl,
177 struct pfctl_status_counters *counters)
178 {
179 const uint64_t *ids, *counts;
180 const char *const *names;
181 size_t id_len, counter_len, names_len;
182
183 ids = nvlist_get_number_array(nvl, "ids", &id_len);
184 counts = nvlist_get_number_array(nvl, "counters", &counter_len);
185 names = nvlist_get_string_array(nvl, "names", &names_len);
186 assert(id_len == counter_len);
187 assert(counter_len == names_len);
188
189 TAILQ_INIT(counters);
190
191 for (size_t i = 0; i < id_len; i++) {
192 struct pfctl_status_counter *c;
193
194 c = malloc(sizeof(*c));
195
196 c->id = ids[i];
197 c->counter = counts[i];
198 c->name = strdup(names[i]);
199
200 TAILQ_INSERT_TAIL(counters, c, entry);
201 }
202 }
203
204 struct pfctl_status *
pfctl_get_status(int dev)205 pfctl_get_status(int dev)
206 {
207 struct pfctl_status *status;
208 nvlist_t *nvl;
209 size_t len;
210 const void *chksum;
211
212 status = calloc(1, sizeof(*status));
213 if (status == NULL)
214 return (NULL);
215
216 nvl = nvlist_create(0);
217
218 if (pfctl_do_ioctl(dev, DIOCGETSTATUSNV, 4096, &nvl)) {
219 free(status);
220 return (NULL);
221 }
222
223 status->running = nvlist_get_bool(nvl, "running");
224 status->since = nvlist_get_number(nvl, "since");
225 status->debug = nvlist_get_number(nvl, "debug");
226 status->hostid = ntohl(nvlist_get_number(nvl, "hostid"));
227 status->states = nvlist_get_number(nvl, "states");
228 status->src_nodes = nvlist_get_number(nvl, "src_nodes");
229
230 strlcpy(status->ifname, nvlist_get_string(nvl, "ifname"),
231 IFNAMSIZ);
232 chksum = nvlist_get_binary(nvl, "chksum", &len);
233 assert(len == PF_MD5_DIGEST_LENGTH);
234 memcpy(status->pf_chksum, chksum, len);
235
236 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "counters"),
237 &status->counters);
238 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "lcounters"),
239 &status->lcounters);
240 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "fcounters"),
241 &status->fcounters);
242 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "scounters"),
243 &status->scounters);
244
245 pf_nvuint_64_array(nvl, "pcounters", 2 * 2 * 3,
246 (uint64_t *)status->pcounters, NULL);
247 pf_nvuint_64_array(nvl, "bcounters", 2 * 2,
248 (uint64_t *)status->bcounters, NULL);
249
250 nvlist_destroy(nvl);
251
252 return (status);
253 }
254
255 void
pfctl_free_status(struct pfctl_status * status)256 pfctl_free_status(struct pfctl_status *status)
257 {
258 struct pfctl_status_counter *c, *tmp;
259
260 TAILQ_FOREACH_SAFE(c, &status->counters, entry, tmp) {
261 free(c->name);
262 free(c);
263 }
264 TAILQ_FOREACH_SAFE(c, &status->lcounters, entry, tmp) {
265 free(c->name);
266 free(c);
267 }
268 TAILQ_FOREACH_SAFE(c, &status->fcounters, entry, tmp) {
269 free(c->name);
270 free(c);
271 }
272 TAILQ_FOREACH_SAFE(c, &status->scounters, entry, tmp) {
273 free(c->name);
274 free(c);
275 }
276
277 free(status);
278 }
279
280 static void
pfctl_nv_add_addr(nvlist_t * nvparent,const char * name,const struct pf_addr * addr)281 pfctl_nv_add_addr(nvlist_t *nvparent, const char *name,
282 const struct pf_addr *addr)
283 {
284 nvlist_t *nvl = nvlist_create(0);
285
286 nvlist_add_binary(nvl, "addr", addr, sizeof(*addr));
287
288 nvlist_add_nvlist(nvparent, name, nvl);
289 nvlist_destroy(nvl);
290 }
291
292 static void
pf_nvaddr_to_addr(const nvlist_t * nvl,struct pf_addr * addr)293 pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *addr)
294 {
295 size_t len;
296 const void *data;
297
298 data = nvlist_get_binary(nvl, "addr", &len);
299 assert(len == sizeof(struct pf_addr));
300 memcpy(addr, data, len);
301 }
302
303 static void
pfctl_nv_add_addr_wrap(nvlist_t * nvparent,const char * name,const struct pf_addr_wrap * addr)304 pfctl_nv_add_addr_wrap(nvlist_t *nvparent, const char *name,
305 const struct pf_addr_wrap *addr)
306 {
307 nvlist_t *nvl = nvlist_create(0);
308
309 nvlist_add_number(nvl, "type", addr->type);
310 nvlist_add_number(nvl, "iflags", addr->iflags);
311 if (addr->type == PF_ADDR_DYNIFTL)
312 nvlist_add_string(nvl, "ifname", addr->v.ifname);
313 if (addr->type == PF_ADDR_TABLE)
314 nvlist_add_string(nvl, "tblname", addr->v.tblname);
315 pfctl_nv_add_addr(nvl, "addr", &addr->v.a.addr);
316 pfctl_nv_add_addr(nvl, "mask", &addr->v.a.mask);
317
318 nvlist_add_nvlist(nvparent, name, nvl);
319 nvlist_destroy(nvl);
320 }
321
322 static void
pf_nvaddr_wrap_to_addr_wrap(const nvlist_t * nvl,struct pf_addr_wrap * addr)323 pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr)
324 {
325 bzero(addr, sizeof(*addr));
326
327 addr->type = nvlist_get_number(nvl, "type");
328 addr->iflags = nvlist_get_number(nvl, "iflags");
329 if (addr->type == PF_ADDR_DYNIFTL) {
330 strlcpy(addr->v.ifname, nvlist_get_string(nvl, "ifname"),
331 IFNAMSIZ);
332 addr->p.dyncnt = nvlist_get_number(nvl, "dyncnt");
333 }
334 if (addr->type == PF_ADDR_TABLE) {
335 strlcpy(addr->v.tblname, nvlist_get_string(nvl, "tblname"),
336 PF_TABLE_NAME_SIZE);
337 addr->p.tblcnt = nvlist_get_number(nvl, "tblcnt");
338 }
339
340 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &addr->v.a.addr);
341 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), &addr->v.a.mask);
342 }
343
344 static void
pfctl_nv_add_rule_addr(nvlist_t * nvparent,const char * name,const struct pf_rule_addr * addr)345 pfctl_nv_add_rule_addr(nvlist_t *nvparent, const char *name,
346 const struct pf_rule_addr *addr)
347 {
348 uint64_t ports[2];
349 nvlist_t *nvl = nvlist_create(0);
350
351 pfctl_nv_add_addr_wrap(nvl, "addr", &addr->addr);
352 ports[0] = addr->port[0];
353 ports[1] = addr->port[1];
354 nvlist_add_number_array(nvl, "port", ports, 2);
355 nvlist_add_number(nvl, "neg", addr->neg);
356 nvlist_add_number(nvl, "port_op", addr->port_op);
357
358 nvlist_add_nvlist(nvparent, name, nvl);
359 nvlist_destroy(nvl);
360 }
361
362 static void
pf_nvrule_addr_to_rule_addr(const nvlist_t * nvl,struct pf_rule_addr * addr)363 pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr)
364 {
365 pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), &addr->addr);
366
367 pf_nvuint_16_array(nvl, "port", 2, addr->port, NULL);
368 addr->neg = nvlist_get_number(nvl, "neg");
369 addr->port_op = nvlist_get_number(nvl, "port_op");
370 }
371
372 static void
pfctl_nv_add_mape(nvlist_t * nvparent,const char * name,const struct pf_mape_portset * mape)373 pfctl_nv_add_mape(nvlist_t *nvparent, const char *name,
374 const struct pf_mape_portset *mape)
375 {
376 nvlist_t *nvl = nvlist_create(0);
377
378 nvlist_add_number(nvl, "offset", mape->offset);
379 nvlist_add_number(nvl, "psidlen", mape->psidlen);
380 nvlist_add_number(nvl, "psid", mape->psid);
381 nvlist_add_nvlist(nvparent, name, nvl);
382 nvlist_destroy(nvl);
383 }
384
385 static void
pfctl_nv_add_pool(nvlist_t * nvparent,const char * name,const struct pfctl_pool * pool)386 pfctl_nv_add_pool(nvlist_t *nvparent, const char *name,
387 const struct pfctl_pool *pool)
388 {
389 uint64_t ports[2];
390 nvlist_t *nvl = nvlist_create(0);
391
392 nvlist_add_binary(nvl, "key", &pool->key, sizeof(pool->key));
393 pfctl_nv_add_addr(nvl, "counter", &pool->counter);
394 nvlist_add_number(nvl, "tblidx", pool->tblidx);
395
396 ports[0] = pool->proxy_port[0];
397 ports[1] = pool->proxy_port[1];
398 nvlist_add_number_array(nvl, "proxy_port", ports, 2);
399 nvlist_add_number(nvl, "opts", pool->opts);
400 pfctl_nv_add_mape(nvl, "mape", &pool->mape);
401
402 nvlist_add_nvlist(nvparent, name, nvl);
403 nvlist_destroy(nvl);
404 }
405
406 static void
pf_nvmape_to_mape(const nvlist_t * nvl,struct pf_mape_portset * mape)407 pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape)
408 {
409 mape->offset = nvlist_get_number(nvl, "offset");
410 mape->psidlen = nvlist_get_number(nvl, "psidlen");
411 mape->psid = nvlist_get_number(nvl, "psid");
412 }
413
414 static void
pf_nvpool_to_pool(const nvlist_t * nvl,struct pfctl_pool * pool)415 pf_nvpool_to_pool(const nvlist_t *nvl, struct pfctl_pool *pool)
416 {
417 size_t len;
418 const void *data;
419
420 data = nvlist_get_binary(nvl, "key", &len);
421 assert(len == sizeof(pool->key));
422 memcpy(&pool->key, data, len);
423
424 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), &pool->counter);
425
426 pool->tblidx = nvlist_get_number(nvl, "tblidx");
427 pf_nvuint_16_array(nvl, "proxy_port", 2, pool->proxy_port, NULL);
428 pool->opts = nvlist_get_number(nvl, "opts");
429
430 if (nvlist_exists_nvlist(nvl, "mape"))
431 pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), &pool->mape);
432 }
433
434 static void
pfctl_nv_add_uid(nvlist_t * nvparent,const char * name,const struct pf_rule_uid * uid)435 pfctl_nv_add_uid(nvlist_t *nvparent, const char *name,
436 const struct pf_rule_uid *uid)
437 {
438 uint64_t uids[2];
439 nvlist_t *nvl = nvlist_create(0);
440
441 uids[0] = uid->uid[0];
442 uids[1] = uid->uid[1];
443 nvlist_add_number_array(nvl, "uid", uids, 2);
444 nvlist_add_number(nvl, "op", uid->op);
445
446 nvlist_add_nvlist(nvparent, name, nvl);
447 nvlist_destroy(nvl);
448 }
449
450 static void
pf_nvrule_uid_to_rule_uid(const nvlist_t * nvl,struct pf_rule_uid * uid)451 pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid)
452 {
453 pf_nvuint_32_array(nvl, "uid", 2, uid->uid, NULL);
454 uid->op = nvlist_get_number(nvl, "op");
455 }
456
457 static void
pfctl_nv_add_divert(nvlist_t * nvparent,const char * name,const struct pfctl_rule * r)458 pfctl_nv_add_divert(nvlist_t *nvparent, const char *name,
459 const struct pfctl_rule *r)
460 {
461 nvlist_t *nvl = nvlist_create(0);
462
463 pfctl_nv_add_addr(nvl, "addr", &r->divert.addr);
464 nvlist_add_number(nvl, "port", r->divert.port);
465
466 nvlist_add_nvlist(nvparent, name, nvl);
467 nvlist_destroy(nvl);
468 }
469
470 static void
pf_nvdivert_to_divert(const nvlist_t * nvl,struct pfctl_rule * rule)471 pf_nvdivert_to_divert(const nvlist_t *nvl, struct pfctl_rule *rule)
472 {
473 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &rule->divert.addr);
474 rule->divert.port = nvlist_get_number(nvl, "port");
475 }
476
477 static void
pf_nvrule_to_rule(const nvlist_t * nvl,struct pfctl_rule * rule)478 pf_nvrule_to_rule(const nvlist_t *nvl, struct pfctl_rule *rule)
479 {
480 const uint64_t *skip;
481 const char *const *labels;
482 size_t skipcount, labelcount;
483
484 rule->nr = nvlist_get_number(nvl, "nr");
485
486 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &rule->src);
487 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &rule->dst);
488
489 skip = nvlist_get_number_array(nvl, "skip", &skipcount);
490 assert(skip);
491 assert(skipcount == PF_SKIP_COUNT);
492 for (int i = 0; i < PF_SKIP_COUNT; i++)
493 rule->skip[i].nr = skip[i];
494
495 labels = nvlist_get_string_array(nvl, "labels", &labelcount);
496 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT);
497 for (size_t i = 0; i < labelcount; i++)
498 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE);
499 rule->ridentifier = nvlist_get_number(nvl, "ridentifier");
500 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ);
501 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE);
502 strlcpy(rule->pqname, nvlist_get_string(nvl, "pqname"), PF_QNAME_SIZE);
503 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"),
504 PF_TAG_NAME_SIZE);
505 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"),
506 PF_TAG_NAME_SIZE);
507
508 strlcpy(rule->overload_tblname, nvlist_get_string(nvl, "overload_tblname"),
509 PF_TABLE_NAME_SIZE);
510
511 pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), &rule->rpool);
512
513 rule->evaluations = nvlist_get_number(nvl, "evaluations");
514 pf_nvuint_64_array(nvl, "packets", 2, rule->packets, NULL);
515 pf_nvuint_64_array(nvl, "bytes", 2, rule->bytes, NULL);
516
517 rule->os_fingerprint = nvlist_get_number(nvl, "os_fingerprint");
518
519 rule->rtableid = nvlist_get_number(nvl, "rtableid");
520 pf_nvuint_32_array(nvl, "timeout", PFTM_MAX, rule->timeout, NULL);
521 rule->max_states = nvlist_get_number(nvl, "max_states");
522 rule->max_src_nodes = nvlist_get_number(nvl, "max_src_nodes");
523 rule->max_src_states = nvlist_get_number(nvl, "max_src_states");
524 rule->max_src_conn = nvlist_get_number(nvl, "max_src_conn");
525 rule->max_src_conn_rate.limit =
526 nvlist_get_number(nvl, "max_src_conn_rate.limit");
527 rule->max_src_conn_rate.seconds =
528 nvlist_get_number(nvl, "max_src_conn_rate.seconds");
529 rule->qid = nvlist_get_number(nvl, "qid");
530 rule->pqid = nvlist_get_number(nvl, "pqid");
531 rule->prob = nvlist_get_number(nvl, "prob");
532 rule->cuid = nvlist_get_number(nvl, "cuid");
533 rule->cpid = nvlist_get_number(nvl, "cpid");
534
535 rule->return_icmp = nvlist_get_number(nvl, "return_icmp");
536 rule->return_icmp6 = nvlist_get_number(nvl, "return_icmp6");
537 rule->max_mss = nvlist_get_number(nvl, "max_mss");
538 rule->scrub_flags = nvlist_get_number(nvl, "scrub_flags");
539
540 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), &rule->uid);
541 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "gid"),
542 (struct pf_rule_uid *)&rule->gid);
543
544 rule->rule_flag = nvlist_get_number(nvl, "rule_flag");
545 rule->action = nvlist_get_number(nvl, "action");
546 rule->direction = nvlist_get_number(nvl, "direction");
547 rule->log = nvlist_get_number(nvl, "log");
548 rule->logif = nvlist_get_number(nvl, "logif");
549 rule->quick = nvlist_get_number(nvl, "quick");
550 rule->ifnot = nvlist_get_number(nvl, "ifnot");
551 rule->match_tag_not = nvlist_get_number(nvl, "match_tag_not");
552 rule->natpass = nvlist_get_number(nvl, "natpass");
553
554 rule->keep_state = nvlist_get_number(nvl, "keep_state");
555 rule->af = nvlist_get_number(nvl, "af");
556 rule->proto = nvlist_get_number(nvl, "proto");
557 rule->type = nvlist_get_number(nvl, "type");
558 rule->code = nvlist_get_number(nvl, "code");
559 rule->flags = nvlist_get_number(nvl, "flags");
560 rule->flagset = nvlist_get_number(nvl, "flagset");
561 rule->min_ttl = nvlist_get_number(nvl, "min_ttl");
562 rule->allow_opts = nvlist_get_number(nvl, "allow_opts");
563 rule->rt = nvlist_get_number(nvl, "rt");
564 rule->return_ttl = nvlist_get_number(nvl, "return_ttl");
565 rule->tos = nvlist_get_number(nvl, "tos");
566 rule->set_tos = nvlist_get_number(nvl, "set_tos");
567 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative");
568 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard");
569
570 rule->flush = nvlist_get_number(nvl, "flush");
571 rule->prio = nvlist_get_number(nvl, "prio");
572 pf_nvuint_8_array(nvl, "set_prio", 2, rule->set_prio, NULL);
573
574 pf_nvdivert_to_divert(nvlist_get_nvlist(nvl, "divert"), rule);
575
576 rule->states_cur = nvlist_get_number(nvl, "states_cur");
577 rule->states_tot = nvlist_get_number(nvl, "states_tot");
578 rule->src_nodes = nvlist_get_number(nvl, "src_nodes");
579 }
580
581 int
pfctl_add_rule(int dev,const struct pfctl_rule * r,const char * anchor,const char * anchor_call,uint32_t ticket,uint32_t pool_ticket)582 pfctl_add_rule(int dev, const struct pfctl_rule *r, const char *anchor,
583 const char *anchor_call, uint32_t ticket, uint32_t pool_ticket)
584 {
585 struct pfioc_nv nv;
586 uint64_t timeouts[PFTM_MAX];
587 uint64_t set_prio[2];
588 nvlist_t *nvl, *nvlr;
589 size_t labelcount;
590 int ret;
591
592 nvl = nvlist_create(0);
593 nvlr = nvlist_create(0);
594
595 nvlist_add_number(nvl, "ticket", ticket);
596 nvlist_add_number(nvl, "pool_ticket", pool_ticket);
597 nvlist_add_string(nvl, "anchor", anchor);
598 nvlist_add_string(nvl, "anchor_call", anchor_call);
599
600 nvlist_add_number(nvlr, "nr", r->nr);
601 pfctl_nv_add_rule_addr(nvlr, "src", &r->src);
602 pfctl_nv_add_rule_addr(nvlr, "dst", &r->dst);
603
604 labelcount = 0;
605 while (r->label[labelcount][0] != 0 &&
606 labelcount < PF_RULE_MAX_LABEL_COUNT) {
607 nvlist_append_string_array(nvlr, "labels",
608 r->label[labelcount]);
609 labelcount++;
610 }
611 nvlist_add_number(nvlr, "ridentifier", r->ridentifier);
612
613 nvlist_add_string(nvlr, "ifname", r->ifname);
614 nvlist_add_string(nvlr, "qname", r->qname);
615 nvlist_add_string(nvlr, "pqname", r->pqname);
616 nvlist_add_string(nvlr, "tagname", r->tagname);
617 nvlist_add_string(nvlr, "match_tagname", r->match_tagname);
618 nvlist_add_string(nvlr, "overload_tblname", r->overload_tblname);
619
620 pfctl_nv_add_pool(nvlr, "rpool", &r->rpool);
621
622 nvlist_add_number(nvlr, "os_fingerprint", r->os_fingerprint);
623
624 nvlist_add_number(nvlr, "rtableid", r->rtableid);
625 for (int i = 0; i < PFTM_MAX; i++)
626 timeouts[i] = r->timeout[i];
627 nvlist_add_number_array(nvlr, "timeout", timeouts, PFTM_MAX);
628 nvlist_add_number(nvlr, "max_states", r->max_states);
629 nvlist_add_number(nvlr, "max_src_nodes", r->max_src_nodes);
630 nvlist_add_number(nvlr, "max_src_states", r->max_src_states);
631 nvlist_add_number(nvlr, "max_src_conn", r->max_src_conn);
632 nvlist_add_number(nvlr, "max_src_conn_rate.limit",
633 r->max_src_conn_rate.limit);
634 nvlist_add_number(nvlr, "max_src_conn_rate.seconds",
635 r->max_src_conn_rate.seconds);
636 nvlist_add_number(nvlr, "prob", r->prob);
637 nvlist_add_number(nvlr, "cuid", r->cuid);
638 nvlist_add_number(nvlr, "cpid", r->cpid);
639
640 nvlist_add_number(nvlr, "return_icmp", r->return_icmp);
641 nvlist_add_number(nvlr, "return_icmp6", r->return_icmp6);
642
643 nvlist_add_number(nvlr, "max_mss", r->max_mss);
644 nvlist_add_number(nvlr, "scrub_flags", r->scrub_flags);
645
646 pfctl_nv_add_uid(nvlr, "uid", &r->uid);
647 pfctl_nv_add_uid(nvlr, "gid", (const struct pf_rule_uid *)&r->gid);
648
649 nvlist_add_number(nvlr, "rule_flag", r->rule_flag);
650 nvlist_add_number(nvlr, "action", r->action);
651 nvlist_add_number(nvlr, "direction", r->direction);
652 nvlist_add_number(nvlr, "log", r->log);
653 nvlist_add_number(nvlr, "logif", r->logif);
654 nvlist_add_number(nvlr, "quick", r->quick);
655 nvlist_add_number(nvlr, "ifnot", r->ifnot);
656 nvlist_add_number(nvlr, "match_tag_not", r->match_tag_not);
657 nvlist_add_number(nvlr, "natpass", r->natpass);
658
659 nvlist_add_number(nvlr, "keep_state", r->keep_state);
660 nvlist_add_number(nvlr, "af", r->af);
661 nvlist_add_number(nvlr, "proto", r->proto);
662 nvlist_add_number(nvlr, "type", r->type);
663 nvlist_add_number(nvlr, "code", r->code);
664 nvlist_add_number(nvlr, "flags", r->flags);
665 nvlist_add_number(nvlr, "flagset", r->flagset);
666 nvlist_add_number(nvlr, "min_ttl", r->min_ttl);
667 nvlist_add_number(nvlr, "allow_opts", r->allow_opts);
668 nvlist_add_number(nvlr, "rt", r->rt);
669 nvlist_add_number(nvlr, "return_ttl", r->return_ttl);
670 nvlist_add_number(nvlr, "tos", r->tos);
671 nvlist_add_number(nvlr, "set_tos", r->set_tos);
672 nvlist_add_number(nvlr, "anchor_relative", r->anchor_relative);
673 nvlist_add_number(nvlr, "anchor_wildcard", r->anchor_wildcard);
674
675 nvlist_add_number(nvlr, "flush", r->flush);
676
677 nvlist_add_number(nvlr, "prio", r->prio);
678 set_prio[0] = r->set_prio[0];
679 set_prio[1] = r->set_prio[1];
680 nvlist_add_number_array(nvlr, "set_prio", set_prio, 2);
681
682 pfctl_nv_add_divert(nvlr, "divert", r);
683
684 nvlist_add_nvlist(nvl, "rule", nvlr);
685 nvlist_destroy(nvlr);
686
687 /* Now do the call. */
688 nv.data = nvlist_pack(nvl, &nv.len);
689 nv.size = nv.len;
690
691 ret = ioctl(dev, DIOCADDRULENV, &nv);
692
693 free(nv.data);
694 nvlist_destroy(nvl);
695
696 return (ret);
697 }
698
699 int
pfctl_get_rules_info(int dev,struct pfctl_rules_info * rules,uint32_t ruleset,const char * path)700 pfctl_get_rules_info(int dev, struct pfctl_rules_info *rules, uint32_t ruleset,
701 const char *path)
702 {
703 struct pfioc_rule pr;
704 int ret;
705
706 bzero(&pr, sizeof(pr));
707 if (strlcpy(pr.anchor, path, sizeof(pr.anchor)) >= sizeof(pr.anchor))
708 return (E2BIG);
709
710 pr.rule.action = ruleset;
711 ret = ioctl(dev, DIOCGETRULES, &pr);
712 if (ret != 0)
713 return (ret);
714
715 rules->nr = pr.nr;
716 rules->ticket = pr.ticket;
717
718 return (0);
719 }
720
721 int
pfctl_get_rule(int dev,uint32_t nr,uint32_t ticket,const char * anchor,uint32_t ruleset,struct pfctl_rule * rule,char * anchor_call)722 pfctl_get_rule(int dev, uint32_t nr, uint32_t ticket, const char *anchor,
723 uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call)
724 {
725 return (pfctl_get_clear_rule(dev, nr, ticket, anchor, ruleset, rule,
726 anchor_call, false));
727 }
728
pfctl_get_clear_rule(int dev,uint32_t nr,uint32_t ticket,const char * anchor,uint32_t ruleset,struct pfctl_rule * rule,char * anchor_call,bool clear)729 int pfctl_get_clear_rule(int dev, uint32_t nr, uint32_t ticket,
730 const char *anchor, uint32_t ruleset, struct pfctl_rule *rule,
731 char *anchor_call, bool clear)
732 {
733 nvlist_t *nvl;
734 int ret;
735
736 nvl = nvlist_create(0);
737 if (nvl == 0)
738 return (ENOMEM);
739
740 nvlist_add_number(nvl, "nr", nr);
741 nvlist_add_number(nvl, "ticket", ticket);
742 nvlist_add_string(nvl, "anchor", anchor);
743 nvlist_add_number(nvl, "ruleset", ruleset);
744
745 if (clear)
746 nvlist_add_bool(nvl, "clear_counter", true);
747
748 if ((ret = pfctl_do_ioctl(dev, DIOCGETRULENV, 8192, &nvl)) != 0)
749 return (ret);
750
751 pf_nvrule_to_rule(nvlist_get_nvlist(nvl, "rule"), rule);
752
753 if (anchor_call)
754 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"),
755 MAXPATHLEN);
756
757 nvlist_destroy(nvl);
758
759 return (0);
760 }
761
762 int
pfctl_set_keepcounters(int dev,bool keep)763 pfctl_set_keepcounters(int dev, bool keep)
764 {
765 struct pfioc_nv nv;
766 nvlist_t *nvl;
767 int ret;
768
769 nvl = nvlist_create(0);
770
771 nvlist_add_bool(nvl, "keep_counters", keep);
772
773 nv.data = nvlist_pack(nvl, &nv.len);
774 nv.size = nv.len;
775
776 nvlist_destroy(nvl);
777
778 ret = ioctl(dev, DIOCKEEPCOUNTERS, &nv);
779
780 free(nv.data);
781 return (ret);
782 }
783
784 static void
pfctl_nv_add_state_cmp(nvlist_t * nvl,const char * name,const struct pfctl_state_cmp * cmp)785 pfctl_nv_add_state_cmp(nvlist_t *nvl, const char *name,
786 const struct pfctl_state_cmp *cmp)
787 {
788 nvlist_t *nv;
789
790 nv = nvlist_create(0);
791
792 nvlist_add_number(nv, "id", cmp->id);
793 nvlist_add_number(nv, "creatorid", htonl(cmp->creatorid));
794 nvlist_add_number(nv, "direction", cmp->direction);
795
796 nvlist_add_nvlist(nvl, name, nv);
797 nvlist_destroy(nv);
798 }
799
800 static void
pf_state_key_export_to_state_key(struct pfctl_state_key * ps,const struct pf_state_key_export * s)801 pf_state_key_export_to_state_key(struct pfctl_state_key *ps,
802 const struct pf_state_key_export *s)
803 {
804 bcopy(s->addr, ps->addr, sizeof(ps->addr[0]) * 2);
805 ps->port[0] = s->port[0];
806 ps->port[1] = s->port[1];
807 }
808
809 static void
pf_state_peer_export_to_state_peer(struct pfctl_state_peer * ps,const struct pf_state_peer_export * s)810 pf_state_peer_export_to_state_peer(struct pfctl_state_peer *ps,
811 const struct pf_state_peer_export *s)
812 {
813 /* Ignore scrub. */
814 ps->seqlo = s->seqlo;
815 ps->seqhi = s->seqhi;
816 ps->seqdiff = s->seqdiff;
817 /* Ignore max_win & mss */
818 ps->state = s->state;
819 ps->wscale = s->wscale;
820 }
821
822 static void
pf_state_export_to_state(struct pfctl_state * ps,const struct pf_state_export * s)823 pf_state_export_to_state(struct pfctl_state *ps, const struct pf_state_export *s)
824 {
825 assert(s->version >= PF_STATE_VERSION);
826
827 ps->id = s->id;
828 strlcpy(ps->ifname, s->ifname, sizeof(ps->ifname));
829 strlcpy(ps->orig_ifname, s->orig_ifname, sizeof(ps->orig_ifname));
830 pf_state_key_export_to_state_key(&ps->key[0], &s->key[0]);
831 pf_state_key_export_to_state_key(&ps->key[1], &s->key[1]);
832 pf_state_peer_export_to_state_peer(&ps->src, &s->src);
833 pf_state_peer_export_to_state_peer(&ps->dst, &s->dst);
834 bcopy(&s->rt_addr, &ps->rt_addr, sizeof(ps->rt_addr));
835 ps->rule = ntohl(s->rule);
836 ps->anchor = ntohl(s->anchor);
837 ps->nat_rule = ntohl(s->nat_rule);
838 ps->creation = ntohl(s->creation);
839 ps->expire = ntohl(s->expire);
840 ps->packets[0] = s->packets[0];
841 ps->packets[1] = s->packets[1];
842 ps->bytes[0] = s->bytes[0];
843 ps->bytes[1] = s->bytes[1];
844 ps->creatorid = ntohl(s->creatorid);
845 ps->key[0].proto = s->proto;
846 ps->key[1].proto = s->proto;
847 ps->key[0].af = s->af;
848 ps->key[1].af = s->af;
849 ps->direction = s->direction;
850 ps->state_flags = s->state_flags;
851 ps->sync_flags = s->sync_flags;
852 }
853
854 int
pfctl_get_states(int dev,struct pfctl_states * states)855 pfctl_get_states(int dev, struct pfctl_states *states)
856 {
857 struct pfioc_states_v2 ps;
858 struct pf_state_export *p;
859 char *inbuf = NULL, *newinbuf = NULL;
860 unsigned int len = 0;
861 int i, error;
862
863 bzero(&ps, sizeof(ps));
864 ps.ps_req_version = PF_STATE_VERSION;
865
866 bzero(states, sizeof(*states));
867 TAILQ_INIT(&states->states);
868
869 for (;;) {
870 ps.ps_len = len;
871 if (len) {
872 newinbuf = realloc(inbuf, len);
873 if (newinbuf == NULL)
874 return (ENOMEM);
875 ps.ps_buf = inbuf = newinbuf;
876 }
877 if ((error = ioctl(dev, DIOCGETSTATESV2, &ps)) < 0) {
878 free(inbuf);
879 return (error);
880 }
881 if (ps.ps_len + sizeof(struct pfioc_states_v2) < len)
882 break;
883 if (len == 0 && ps.ps_len == 0)
884 goto out;
885 if (len == 0 && ps.ps_len != 0)
886 len = ps.ps_len;
887 if (ps.ps_len == 0)
888 goto out; /* no states */
889 len *= 2;
890 }
891 p = ps.ps_states;
892
893 for (i = 0; i < ps.ps_len; i += sizeof(*p), p++) {
894 struct pfctl_state *s = malloc(sizeof(*s));
895 if (s == NULL) {
896 pfctl_free_states(states);
897 error = ENOMEM;
898 goto out;
899 }
900
901 pf_state_export_to_state(s, p);
902 TAILQ_INSERT_TAIL(&states->states, s, entry);
903 }
904
905 out:
906 free(inbuf);
907 return (error);
908 }
909
910 void
pfctl_free_states(struct pfctl_states * states)911 pfctl_free_states(struct pfctl_states *states)
912 {
913 struct pfctl_state *s, *tmp;
914
915 TAILQ_FOREACH_SAFE(s, &states->states, entry, tmp) {
916 free(s);
917 }
918
919 bzero(states, sizeof(*states));
920 }
921
922 static int
_pfctl_clear_states(int dev,const struct pfctl_kill * kill,unsigned int * killed,uint64_t ioctlval)923 _pfctl_clear_states(int dev, const struct pfctl_kill *kill,
924 unsigned int *killed, uint64_t ioctlval)
925 {
926 nvlist_t *nvl;
927 int ret;
928
929 nvl = nvlist_create(0);
930
931 pfctl_nv_add_state_cmp(nvl, "cmp", &kill->cmp);
932 nvlist_add_number(nvl, "af", kill->af);
933 nvlist_add_number(nvl, "proto", kill->proto);
934 pfctl_nv_add_rule_addr(nvl, "src", &kill->src);
935 pfctl_nv_add_rule_addr(nvl, "dst", &kill->dst);
936 pfctl_nv_add_rule_addr(nvl, "rt_addr", &kill->rt_addr);
937 nvlist_add_string(nvl, "ifname", kill->ifname);
938 nvlist_add_string(nvl, "label", kill->label);
939 nvlist_add_bool(nvl, "kill_match", kill->kill_match);
940
941 if ((ret = pfctl_do_ioctl(dev, ioctlval, 1024, &nvl)) != 0)
942 return (ret);
943
944 if (killed)
945 *killed = nvlist_get_number(nvl, "killed");
946
947 nvlist_destroy(nvl);
948
949 return (ret);
950 }
951
952 int
pfctl_clear_states(int dev,const struct pfctl_kill * kill,unsigned int * killed)953 pfctl_clear_states(int dev, const struct pfctl_kill *kill,
954 unsigned int *killed)
955 {
956 return (_pfctl_clear_states(dev, kill, killed, DIOCCLRSTATESNV));
957 }
958
959 int
pfctl_kill_states(int dev,const struct pfctl_kill * kill,unsigned int * killed)960 pfctl_kill_states(int dev, const struct pfctl_kill *kill, unsigned int *killed)
961 {
962 return (_pfctl_clear_states(dev, kill, killed, DIOCKILLSTATESNV));
963 }
964
965 int
pfctl_clear_rules(int dev,const char * anchorname)966 pfctl_clear_rules(int dev, const char *anchorname)
967 {
968 struct pfioc_trans trans;
969 struct pfioc_trans_e transe[2];
970 int ret;
971
972 bzero(&trans, sizeof(trans));
973 bzero(&transe, sizeof(transe));
974
975 transe[0].rs_num = PF_RULESET_SCRUB;
976 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor))
977 >= sizeof(transe[0].anchor))
978 return (E2BIG);
979
980 transe[1].rs_num = PF_RULESET_FILTER;
981 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor))
982 >= sizeof(transe[1].anchor))
983 return (E2BIG);
984
985 trans.size = 2;
986 trans.esize = sizeof(transe[0]);
987 trans.array = transe;
988
989 ret = ioctl(dev, DIOCXBEGIN, &trans);
990 if (ret != 0)
991 return (ret);
992 return ioctl(dev, DIOCXCOMMIT, &trans);
993 }
994
995 int
pfctl_clear_nat(int dev,const char * anchorname)996 pfctl_clear_nat(int dev, const char *anchorname)
997 {
998 struct pfioc_trans trans;
999 struct pfioc_trans_e transe[3];
1000 int ret;
1001
1002 bzero(&trans, sizeof(trans));
1003 bzero(&transe, sizeof(transe));
1004
1005 transe[0].rs_num = PF_RULESET_NAT;
1006 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor))
1007 >= sizeof(transe[0].anchor))
1008 return (E2BIG);
1009
1010 transe[1].rs_num = PF_RULESET_BINAT;
1011 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor))
1012 >= sizeof(transe[0].anchor))
1013 return (E2BIG);
1014
1015 transe[2].rs_num = PF_RULESET_RDR;
1016 if (strlcpy(transe[2].anchor, anchorname, sizeof(transe[2].anchor))
1017 >= sizeof(transe[2].anchor))
1018 return (E2BIG);
1019
1020 trans.size = 3;
1021 trans.esize = sizeof(transe[0]);
1022 trans.array = transe;
1023
1024 ret = ioctl(dev, DIOCXBEGIN, &trans);
1025 if (ret != 0)
1026 return (ret);
1027 return ioctl(dev, DIOCXCOMMIT, &trans);
1028 }
1029
1030 static int
pfctl_get_limit(int dev,const int index,uint * limit)1031 pfctl_get_limit(int dev, const int index, uint *limit)
1032 {
1033 struct pfioc_limit pl;
1034
1035 bzero(&pl, sizeof(pl));
1036 pl.index = index;
1037
1038 if (ioctl(dev, DIOCGETLIMIT, &pl) == -1)
1039 return (errno);
1040
1041 *limit = pl.limit;
1042
1043 return (0);
1044 }
1045
1046 int
pfctl_set_syncookies(int dev,const struct pfctl_syncookies * s)1047 pfctl_set_syncookies(int dev, const struct pfctl_syncookies *s)
1048 {
1049 struct pfioc_nv nv;
1050 nvlist_t *nvl;
1051 int ret;
1052 uint state_limit;
1053
1054 ret = pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit);
1055 if (ret != 0)
1056 return (ret);
1057
1058 nvl = nvlist_create(0);
1059
1060 nvlist_add_bool(nvl, "enabled", s->mode != PFCTL_SYNCOOKIES_NEVER);
1061 nvlist_add_bool(nvl, "adaptive", s->mode == PFCTL_SYNCOOKIES_ADAPTIVE);
1062 nvlist_add_number(nvl, "highwater", state_limit * s->highwater / 100);
1063 nvlist_add_number(nvl, "lowwater", state_limit * s->lowwater / 100);
1064
1065 nv.data = nvlist_pack(nvl, &nv.len);
1066 nv.size = nv.len;
1067 nvlist_destroy(nvl);
1068 nvl = NULL;
1069
1070 ret = ioctl(dev, DIOCSETSYNCOOKIES, &nv);
1071
1072 free(nv.data);
1073 return (ret);
1074 }
1075
1076 int
pfctl_get_syncookies(int dev,struct pfctl_syncookies * s)1077 pfctl_get_syncookies(int dev, struct pfctl_syncookies *s)
1078 {
1079 nvlist_t *nvl;
1080 int ret;
1081 uint state_limit;
1082 bool enabled, adaptive;
1083
1084 ret = pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit);
1085 if (ret != 0)
1086 return (ret);
1087
1088 bzero(s, sizeof(*s));
1089
1090 nvl = nvlist_create(0);
1091
1092 if ((ret = pfctl_do_ioctl(dev, DIOCGETSYNCOOKIES, 256, &nvl)) != 0)
1093 return (errno);
1094
1095 enabled = nvlist_get_bool(nvl, "enabled");
1096 adaptive = nvlist_get_bool(nvl, "adaptive");
1097
1098 if (enabled) {
1099 if (adaptive)
1100 s->mode = PFCTL_SYNCOOKIES_ADAPTIVE;
1101 else
1102 s->mode = PFCTL_SYNCOOKIES_ALWAYS;
1103 } else {
1104 s->mode = PFCTL_SYNCOOKIES_NEVER;
1105 }
1106
1107 s->highwater = nvlist_get_number(nvl, "highwater") * 100 / state_limit;
1108 s->lowwater = nvlist_get_number(nvl, "lowwater") * 100 / state_limit;
1109
1110 nvlist_destroy(nvl);
1111
1112 return (0);
1113 }
1114
1115 int
pfctl_table_add_addrs(int dev,struct pfr_table * tbl,struct pfr_addr * addr,int size,int * nadd,int flags)1116 pfctl_table_add_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
1117 *addr, int size, int *nadd, int flags)
1118 {
1119 struct pfioc_table io;
1120
1121 if (tbl == NULL || size < 0 || (size && addr == NULL)) {
1122 return (EINVAL);
1123 }
1124 bzero(&io, sizeof io);
1125 io.pfrio_flags = flags;
1126 io.pfrio_table = *tbl;
1127 io.pfrio_buffer = addr;
1128 io.pfrio_esize = sizeof(*addr);
1129 io.pfrio_size = size;
1130
1131 if (ioctl(dev, DIOCRADDADDRS, &io))
1132 return (errno);
1133 if (nadd != NULL)
1134 *nadd = io.pfrio_nadd;
1135 return (0);
1136 }
1137
1138 int
pfctl_table_del_addrs(int dev,struct pfr_table * tbl,struct pfr_addr * addr,int size,int * ndel,int flags)1139 pfctl_table_del_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
1140 *addr, int size, int *ndel, int flags)
1141 {
1142 struct pfioc_table io;
1143
1144 if (tbl == NULL || size < 0 || (size && addr == NULL)) {
1145 return (EINVAL);
1146 }
1147 bzero(&io, sizeof io);
1148 io.pfrio_flags = flags;
1149 io.pfrio_table = *tbl;
1150 io.pfrio_buffer = addr;
1151 io.pfrio_esize = sizeof(*addr);
1152 io.pfrio_size = size;
1153
1154 if (ioctl(dev, DIOCRDELADDRS, &io))
1155 return (errno);
1156 if (ndel != NULL)
1157 *ndel = io.pfrio_ndel;
1158 return (0);
1159 }
1160
1161 int
pfctl_table_set_addrs(int dev,struct pfr_table * tbl,struct pfr_addr * addr,int size,int * size2,int * nadd,int * ndel,int * nchange,int flags)1162 pfctl_table_set_addrs(int dev, struct pfr_table *tbl, struct pfr_addr
1163 *addr, int size, int *size2, int *nadd, int *ndel, int *nchange, int flags)
1164 {
1165 struct pfioc_table io;
1166
1167 if (tbl == NULL || size < 0 || (size && addr == NULL)) {
1168 return (EINVAL);
1169 }
1170 bzero(&io, sizeof io);
1171 io.pfrio_flags = flags;
1172 io.pfrio_table = *tbl;
1173 io.pfrio_buffer = addr;
1174 io.pfrio_esize = sizeof(*addr);
1175 io.pfrio_size = size;
1176 io.pfrio_size2 = (size2 != NULL) ? *size2 : 0;
1177 if (ioctl(dev, DIOCRSETADDRS, &io))
1178 return (-1);
1179 if (nadd != NULL)
1180 *nadd = io.pfrio_nadd;
1181 if (ndel != NULL)
1182 *ndel = io.pfrio_ndel;
1183 if (nchange != NULL)
1184 *nchange = io.pfrio_nchange;
1185 if (size2 != NULL)
1186 *size2 = io.pfrio_size2;
1187 return (0);
1188 }
1189
pfctl_table_get_addrs(int dev,struct pfr_table * tbl,struct pfr_addr * addr,int * size,int flags)1190 int pfctl_table_get_addrs(int dev, struct pfr_table *tbl, struct pfr_addr *addr,
1191 int *size, int flags)
1192 {
1193 struct pfioc_table io;
1194
1195 if (tbl == NULL || size == NULL || *size < 0 ||
1196 (*size && addr == NULL)) {
1197 return (EINVAL);
1198 }
1199 bzero(&io, sizeof io);
1200 io.pfrio_flags = flags;
1201 io.pfrio_table = *tbl;
1202 io.pfrio_buffer = addr;
1203 io.pfrio_esize = sizeof(*addr);
1204 io.pfrio_size = *size;
1205 if (ioctl(dev, DIOCRGETADDRS, &io))
1206 return (-1);
1207 *size = io.pfrio_size;
1208 return (0);
1209 }
1210