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 32 #include <sys/cdefs.h> 33 34 #include <sys/ioctl.h> 35 #include <sys/nv.h> 36 #include <sys/queue.h> 37 #include <sys/types.h> 38 39 #include <net/if.h> 40 #include <net/pfvar.h> 41 #include <netinet/in.h> 42 43 #include <netpfil/pf/pf_nl.h> 44 #include <netlink/netlink.h> 45 #include <netlink/netlink_generic.h> 46 #include <netlink/netlink_snl.h> 47 #include <netlink/netlink_snl_generic.h> 48 #include <netlink/netlink_snl_route.h> 49 50 #include <assert.h> 51 #include <err.h> 52 #include <errno.h> 53 #include <stdlib.h> 54 #include <string.h> 55 56 #include "libpfctl.h" 57 58 const char* PFCTL_SYNCOOKIES_MODE_NAMES[] = { 59 "never", 60 "always", 61 "adaptive" 62 }; 63 64 static int _pfctl_clear_states(int , const struct pfctl_kill *, 65 unsigned int *, uint64_t); 66 67 static int 68 pfctl_do_ioctl(int dev, uint cmd, size_t size, nvlist_t **nvl) 69 { 70 struct pfioc_nv nv; 71 void *data; 72 size_t nvlen; 73 int ret; 74 75 data = nvlist_pack(*nvl, &nvlen); 76 if (nvlen > size) 77 size = nvlen; 78 79 retry: 80 nv.data = malloc(size); 81 memcpy(nv.data, data, nvlen); 82 83 nv.len = nvlen; 84 nv.size = size; 85 86 ret = ioctl(dev, cmd, &nv); 87 if (ret == -1 && errno == ENOSPC) { 88 size *= 2; 89 free(nv.data); 90 goto retry; 91 } 92 93 nvlist_destroy(*nvl); 94 *nvl = NULL; 95 96 if (ret == 0) { 97 *nvl = nvlist_unpack(nv.data, nv.len, 0); 98 if (*nvl == NULL) { 99 ret = EIO; 100 goto out; 101 } 102 } else { 103 ret = errno; 104 } 105 106 out: 107 free(data); 108 free(nv.data); 109 110 return (ret); 111 } 112 113 static void 114 pf_nvuint_8_array(const nvlist_t *nvl, const char *name, size_t maxelems, 115 uint8_t *numbers, size_t *nelems) 116 { 117 const uint64_t *tmp; 118 size_t elems; 119 120 tmp = nvlist_get_number_array(nvl, name, &elems); 121 assert(elems <= maxelems); 122 123 for (size_t i = 0; i < elems; i++) 124 numbers[i] = tmp[i]; 125 126 if (nelems) 127 *nelems = elems; 128 } 129 130 static void 131 pf_nvuint_16_array(const nvlist_t *nvl, const char *name, size_t maxelems, 132 uint16_t *numbers, size_t *nelems) 133 { 134 const uint64_t *tmp; 135 size_t elems; 136 137 tmp = nvlist_get_number_array(nvl, name, &elems); 138 assert(elems <= maxelems); 139 140 for (size_t i = 0; i < elems; i++) 141 numbers[i] = tmp[i]; 142 143 if (nelems) 144 *nelems = elems; 145 } 146 147 static void 148 pf_nvuint_32_array(const nvlist_t *nvl, const char *name, size_t maxelems, 149 uint32_t *numbers, size_t *nelems) 150 { 151 const uint64_t *tmp; 152 size_t elems; 153 154 tmp = nvlist_get_number_array(nvl, name, &elems); 155 156 for (size_t i = 0; i < elems && i < maxelems; i++) 157 numbers[i] = tmp[i]; 158 159 if (nelems) 160 *nelems = elems; 161 } 162 163 static void 164 pf_nvuint_64_array(const nvlist_t *nvl, const char *name, size_t maxelems, 165 uint64_t *numbers, size_t *nelems) 166 { 167 const uint64_t *tmp; 168 size_t elems; 169 170 tmp = nvlist_get_number_array(nvl, name, &elems); 171 assert(elems <= maxelems); 172 173 for (size_t i = 0; i < elems; i++) 174 numbers[i] = tmp[i]; 175 176 if (nelems) 177 *nelems = elems; 178 } 179 180 int 181 pfctl_startstop(int start) 182 { 183 struct snl_state ss = {}; 184 struct snl_errmsg_data e = {}; 185 struct snl_writer nw; 186 struct nlmsghdr *hdr; 187 uint32_t seq_id; 188 int family_id; 189 190 snl_init(&ss, NETLINK_GENERIC); 191 family_id = snl_get_genl_family(&ss, PFNL_FAMILY_NAME); 192 if (family_id == 0) 193 return (ENOTSUP); 194 195 snl_init_writer(&ss, &nw); 196 hdr = snl_create_genl_msg_request(&nw, family_id, 197 start ? PFNL_CMD_START : PFNL_CMD_STOP); 198 199 hdr = snl_finalize_msg(&nw); 200 if (hdr == NULL) 201 return (ENOMEM); 202 seq_id = hdr->nlmsg_seq; 203 204 snl_send_message(&ss, hdr); 205 206 while ((hdr = snl_read_reply_multi(&ss, seq_id, &e)) != NULL) { 207 } 208 209 return (e.error); 210 } 211 212 static void 213 _pfctl_get_status_counters(const nvlist_t *nvl, 214 struct pfctl_status_counters *counters) 215 { 216 const uint64_t *ids, *counts; 217 const char *const *names; 218 size_t id_len, counter_len, names_len; 219 220 ids = nvlist_get_number_array(nvl, "ids", &id_len); 221 counts = nvlist_get_number_array(nvl, "counters", &counter_len); 222 names = nvlist_get_string_array(nvl, "names", &names_len); 223 assert(id_len == counter_len); 224 assert(counter_len == names_len); 225 226 TAILQ_INIT(counters); 227 228 for (size_t i = 0; i < id_len; i++) { 229 struct pfctl_status_counter *c; 230 231 c = malloc(sizeof(*c)); 232 233 c->id = ids[i]; 234 c->counter = counts[i]; 235 c->name = strdup(names[i]); 236 237 TAILQ_INSERT_TAIL(counters, c, entry); 238 } 239 } 240 241 struct pfctl_status * 242 pfctl_get_status(int dev) 243 { 244 struct pfctl_status *status; 245 nvlist_t *nvl; 246 size_t len; 247 const void *chksum; 248 249 status = calloc(1, sizeof(*status)); 250 if (status == NULL) 251 return (NULL); 252 253 nvl = nvlist_create(0); 254 255 if (pfctl_do_ioctl(dev, DIOCGETSTATUSNV, 4096, &nvl)) { 256 free(status); 257 return (NULL); 258 } 259 260 status->running = nvlist_get_bool(nvl, "running"); 261 status->since = nvlist_get_number(nvl, "since"); 262 status->debug = nvlist_get_number(nvl, "debug"); 263 status->hostid = ntohl(nvlist_get_number(nvl, "hostid")); 264 status->states = nvlist_get_number(nvl, "states"); 265 status->src_nodes = nvlist_get_number(nvl, "src_nodes"); 266 status->syncookies_active = nvlist_get_bool(nvl, "syncookies_active"); 267 status->reass = nvlist_get_number(nvl, "reass"); 268 269 strlcpy(status->ifname, nvlist_get_string(nvl, "ifname"), 270 IFNAMSIZ); 271 chksum = nvlist_get_binary(nvl, "chksum", &len); 272 assert(len == PF_MD5_DIGEST_LENGTH); 273 memcpy(status->pf_chksum, chksum, len); 274 275 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "counters"), 276 &status->counters); 277 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "lcounters"), 278 &status->lcounters); 279 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "fcounters"), 280 &status->fcounters); 281 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "scounters"), 282 &status->scounters); 283 284 pf_nvuint_64_array(nvl, "pcounters", 2 * 2 * 3, 285 (uint64_t *)status->pcounters, NULL); 286 pf_nvuint_64_array(nvl, "bcounters", 2 * 2, 287 (uint64_t *)status->bcounters, NULL); 288 289 nvlist_destroy(nvl); 290 291 return (status); 292 } 293 294 static uint64_t 295 _pfctl_status_counter(struct pfctl_status_counters *counters, uint64_t id) 296 { 297 struct pfctl_status_counter *c; 298 299 TAILQ_FOREACH(c, counters, entry) { 300 if (c->id == id) 301 return (c->counter); 302 } 303 304 return (0); 305 } 306 307 uint64_t 308 pfctl_status_counter(struct pfctl_status *status, int id) 309 { 310 return (_pfctl_status_counter(&status->counters, id)); 311 } 312 313 uint64_t 314 pfctl_status_lcounter(struct pfctl_status *status, int id) 315 { 316 return (_pfctl_status_counter(&status->lcounters, id)); 317 } 318 319 uint64_t 320 pfctl_status_fcounter(struct pfctl_status *status, int id) 321 { 322 return (_pfctl_status_counter(&status->fcounters, id)); 323 } 324 325 uint64_t 326 pfctl_status_scounter(struct pfctl_status *status, int id) 327 { 328 return (_pfctl_status_counter(&status->scounters, id)); 329 } 330 331 void 332 pfctl_free_status(struct pfctl_status *status) 333 { 334 struct pfctl_status_counter *c, *tmp; 335 336 if (status == NULL) 337 return; 338 339 TAILQ_FOREACH_SAFE(c, &status->counters, entry, tmp) { 340 free(c->name); 341 free(c); 342 } 343 TAILQ_FOREACH_SAFE(c, &status->lcounters, entry, tmp) { 344 free(c->name); 345 free(c); 346 } 347 TAILQ_FOREACH_SAFE(c, &status->fcounters, entry, tmp) { 348 free(c->name); 349 free(c); 350 } 351 TAILQ_FOREACH_SAFE(c, &status->scounters, entry, tmp) { 352 free(c->name); 353 free(c); 354 } 355 356 free(status); 357 } 358 359 static void 360 pfctl_nv_add_addr(nvlist_t *nvparent, const char *name, 361 const struct pf_addr *addr) 362 { 363 nvlist_t *nvl = nvlist_create(0); 364 365 nvlist_add_binary(nvl, "addr", addr, sizeof(*addr)); 366 367 nvlist_add_nvlist(nvparent, name, nvl); 368 nvlist_destroy(nvl); 369 } 370 371 static void 372 pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *addr) 373 { 374 size_t len; 375 const void *data; 376 377 data = nvlist_get_binary(nvl, "addr", &len); 378 assert(len == sizeof(struct pf_addr)); 379 memcpy(addr, data, len); 380 } 381 382 static void 383 pfctl_nv_add_addr_wrap(nvlist_t *nvparent, const char *name, 384 const struct pf_addr_wrap *addr) 385 { 386 nvlist_t *nvl = nvlist_create(0); 387 388 nvlist_add_number(nvl, "type", addr->type); 389 nvlist_add_number(nvl, "iflags", addr->iflags); 390 if (addr->type == PF_ADDR_DYNIFTL) 391 nvlist_add_string(nvl, "ifname", addr->v.ifname); 392 if (addr->type == PF_ADDR_TABLE) 393 nvlist_add_string(nvl, "tblname", addr->v.tblname); 394 pfctl_nv_add_addr(nvl, "addr", &addr->v.a.addr); 395 pfctl_nv_add_addr(nvl, "mask", &addr->v.a.mask); 396 397 nvlist_add_nvlist(nvparent, name, nvl); 398 nvlist_destroy(nvl); 399 } 400 401 static void 402 pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr) 403 { 404 bzero(addr, sizeof(*addr)); 405 406 addr->type = nvlist_get_number(nvl, "type"); 407 addr->iflags = nvlist_get_number(nvl, "iflags"); 408 if (addr->type == PF_ADDR_DYNIFTL) { 409 strlcpy(addr->v.ifname, nvlist_get_string(nvl, "ifname"), 410 IFNAMSIZ); 411 addr->p.dyncnt = nvlist_get_number(nvl, "dyncnt"); 412 } 413 if (addr->type == PF_ADDR_TABLE) { 414 strlcpy(addr->v.tblname, nvlist_get_string(nvl, "tblname"), 415 PF_TABLE_NAME_SIZE); 416 addr->p.tblcnt = nvlist_get_number(nvl, "tblcnt"); 417 } 418 419 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &addr->v.a.addr); 420 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), &addr->v.a.mask); 421 } 422 423 static void 424 pfctl_nv_add_rule_addr(nvlist_t *nvparent, const char *name, 425 const struct pf_rule_addr *addr) 426 { 427 uint64_t ports[2]; 428 nvlist_t *nvl = nvlist_create(0); 429 430 pfctl_nv_add_addr_wrap(nvl, "addr", &addr->addr); 431 ports[0] = addr->port[0]; 432 ports[1] = addr->port[1]; 433 nvlist_add_number_array(nvl, "port", ports, 2); 434 nvlist_add_number(nvl, "neg", addr->neg); 435 nvlist_add_number(nvl, "port_op", addr->port_op); 436 437 nvlist_add_nvlist(nvparent, name, nvl); 438 nvlist_destroy(nvl); 439 } 440 441 static void 442 pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr) 443 { 444 pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), &addr->addr); 445 446 pf_nvuint_16_array(nvl, "port", 2, addr->port, NULL); 447 addr->neg = nvlist_get_number(nvl, "neg"); 448 addr->port_op = nvlist_get_number(nvl, "port_op"); 449 } 450 451 static void 452 pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape) 453 { 454 mape->offset = nvlist_get_number(nvl, "offset"); 455 mape->psidlen = nvlist_get_number(nvl, "psidlen"); 456 mape->psid = nvlist_get_number(nvl, "psid"); 457 } 458 459 static void 460 pf_nvpool_to_pool(const nvlist_t *nvl, struct pfctl_pool *pool) 461 { 462 size_t len; 463 const void *data; 464 465 data = nvlist_get_binary(nvl, "key", &len); 466 assert(len == sizeof(pool->key)); 467 memcpy(&pool->key, data, len); 468 469 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), &pool->counter); 470 471 pool->tblidx = nvlist_get_number(nvl, "tblidx"); 472 pf_nvuint_16_array(nvl, "proxy_port", 2, pool->proxy_port, NULL); 473 pool->opts = nvlist_get_number(nvl, "opts"); 474 475 if (nvlist_exists_nvlist(nvl, "mape")) 476 pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), &pool->mape); 477 } 478 479 static void 480 pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid) 481 { 482 pf_nvuint_32_array(nvl, "uid", 2, uid->uid, NULL); 483 uid->op = nvlist_get_number(nvl, "op"); 484 } 485 486 static void 487 pf_nvdivert_to_divert(const nvlist_t *nvl, struct pfctl_rule *rule) 488 { 489 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &rule->divert.addr); 490 rule->divert.port = nvlist_get_number(nvl, "port"); 491 } 492 493 static void 494 pf_nvrule_to_rule(const nvlist_t *nvl, struct pfctl_rule *rule) 495 { 496 const uint64_t *skip; 497 const char *const *labels; 498 size_t skipcount, labelcount; 499 500 rule->nr = nvlist_get_number(nvl, "nr"); 501 502 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &rule->src); 503 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &rule->dst); 504 505 skip = nvlist_get_number_array(nvl, "skip", &skipcount); 506 assert(skip); 507 assert(skipcount == PF_SKIP_COUNT); 508 for (int i = 0; i < PF_SKIP_COUNT; i++) 509 rule->skip[i].nr = skip[i]; 510 511 labels = nvlist_get_string_array(nvl, "labels", &labelcount); 512 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT); 513 for (size_t i = 0; i < labelcount; i++) 514 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE); 515 rule->ridentifier = nvlist_get_number(nvl, "ridentifier"); 516 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ); 517 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE); 518 strlcpy(rule->pqname, nvlist_get_string(nvl, "pqname"), PF_QNAME_SIZE); 519 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"), 520 PF_TAG_NAME_SIZE); 521 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"), 522 PF_TAG_NAME_SIZE); 523 524 strlcpy(rule->overload_tblname, nvlist_get_string(nvl, "overload_tblname"), 525 PF_TABLE_NAME_SIZE); 526 527 pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), &rule->rpool); 528 529 rule->evaluations = nvlist_get_number(nvl, "evaluations"); 530 pf_nvuint_64_array(nvl, "packets", 2, rule->packets, NULL); 531 pf_nvuint_64_array(nvl, "bytes", 2, rule->bytes, NULL); 532 533 if (nvlist_exists_number(nvl, "timestamp")) { 534 rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp"); 535 } 536 537 rule->os_fingerprint = nvlist_get_number(nvl, "os_fingerprint"); 538 539 rule->rtableid = nvlist_get_number(nvl, "rtableid"); 540 pf_nvuint_32_array(nvl, "timeout", PFTM_MAX, rule->timeout, NULL); 541 rule->max_states = nvlist_get_number(nvl, "max_states"); 542 rule->max_src_nodes = nvlist_get_number(nvl, "max_src_nodes"); 543 rule->max_src_states = nvlist_get_number(nvl, "max_src_states"); 544 rule->max_src_conn = nvlist_get_number(nvl, "max_src_conn"); 545 rule->max_src_conn_rate.limit = 546 nvlist_get_number(nvl, "max_src_conn_rate.limit"); 547 rule->max_src_conn_rate.seconds = 548 nvlist_get_number(nvl, "max_src_conn_rate.seconds"); 549 rule->qid = nvlist_get_number(nvl, "qid"); 550 rule->pqid = nvlist_get_number(nvl, "pqid"); 551 rule->dnpipe = nvlist_get_number(nvl, "dnpipe"); 552 rule->dnrpipe = nvlist_get_number(nvl, "dnrpipe"); 553 rule->free_flags = nvlist_get_number(nvl, "dnflags"); 554 rule->prob = nvlist_get_number(nvl, "prob"); 555 rule->cuid = nvlist_get_number(nvl, "cuid"); 556 rule->cpid = nvlist_get_number(nvl, "cpid"); 557 558 rule->return_icmp = nvlist_get_number(nvl, "return_icmp"); 559 rule->return_icmp6 = nvlist_get_number(nvl, "return_icmp6"); 560 rule->max_mss = nvlist_get_number(nvl, "max_mss"); 561 rule->scrub_flags = nvlist_get_number(nvl, "scrub_flags"); 562 563 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), &rule->uid); 564 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "gid"), 565 (struct pf_rule_uid *)&rule->gid); 566 567 rule->rule_flag = nvlist_get_number(nvl, "rule_flag"); 568 rule->action = nvlist_get_number(nvl, "action"); 569 rule->direction = nvlist_get_number(nvl, "direction"); 570 rule->log = nvlist_get_number(nvl, "log"); 571 rule->logif = nvlist_get_number(nvl, "logif"); 572 rule->quick = nvlist_get_number(nvl, "quick"); 573 rule->ifnot = nvlist_get_number(nvl, "ifnot"); 574 rule->match_tag_not = nvlist_get_number(nvl, "match_tag_not"); 575 rule->natpass = nvlist_get_number(nvl, "natpass"); 576 577 rule->keep_state = nvlist_get_number(nvl, "keep_state"); 578 rule->af = nvlist_get_number(nvl, "af"); 579 rule->proto = nvlist_get_number(nvl, "proto"); 580 rule->type = nvlist_get_number(nvl, "type"); 581 rule->code = nvlist_get_number(nvl, "code"); 582 rule->flags = nvlist_get_number(nvl, "flags"); 583 rule->flagset = nvlist_get_number(nvl, "flagset"); 584 rule->min_ttl = nvlist_get_number(nvl, "min_ttl"); 585 rule->allow_opts = nvlist_get_number(nvl, "allow_opts"); 586 rule->rt = nvlist_get_number(nvl, "rt"); 587 rule->return_ttl = nvlist_get_number(nvl, "return_ttl"); 588 rule->tos = nvlist_get_number(nvl, "tos"); 589 rule->set_tos = nvlist_get_number(nvl, "set_tos"); 590 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative"); 591 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard"); 592 593 rule->flush = nvlist_get_number(nvl, "flush"); 594 rule->prio = nvlist_get_number(nvl, "prio"); 595 pf_nvuint_8_array(nvl, "set_prio", 2, rule->set_prio, NULL); 596 597 pf_nvdivert_to_divert(nvlist_get_nvlist(nvl, "divert"), rule); 598 599 rule->states_cur = nvlist_get_number(nvl, "states_cur"); 600 rule->states_tot = nvlist_get_number(nvl, "states_tot"); 601 rule->src_nodes = nvlist_get_number(nvl, "src_nodes"); 602 } 603 604 static void 605 pfctl_nveth_addr_to_eth_addr(const nvlist_t *nvl, struct pfctl_eth_addr *addr) 606 { 607 static const u_int8_t EMPTY_MAC[ETHER_ADDR_LEN] = { 0 }; 608 size_t len; 609 const void *data; 610 611 data = nvlist_get_binary(nvl, "addr", &len); 612 assert(len == sizeof(addr->addr)); 613 memcpy(addr->addr, data, sizeof(addr->addr)); 614 615 data = nvlist_get_binary(nvl, "mask", &len); 616 assert(len == sizeof(addr->mask)); 617 memcpy(addr->mask, data, sizeof(addr->mask)); 618 619 addr->neg = nvlist_get_bool(nvl, "neg"); 620 621 /* To make checks for 'is this address set?' easier. */ 622 addr->isset = memcmp(addr->addr, EMPTY_MAC, ETHER_ADDR_LEN) != 0; 623 } 624 625 static nvlist_t * 626 pfctl_eth_addr_to_nveth_addr(const struct pfctl_eth_addr *addr) 627 { 628 nvlist_t *nvl; 629 630 nvl = nvlist_create(0); 631 if (nvl == NULL) 632 return (NULL); 633 634 nvlist_add_bool(nvl, "neg", addr->neg); 635 nvlist_add_binary(nvl, "addr", &addr->addr, ETHER_ADDR_LEN); 636 nvlist_add_binary(nvl, "mask", &addr->mask, ETHER_ADDR_LEN); 637 638 return (nvl); 639 } 640 641 static void 642 pfctl_nveth_rule_to_eth_rule(const nvlist_t *nvl, struct pfctl_eth_rule *rule) 643 { 644 const char *const *labels; 645 size_t labelcount, i; 646 647 rule->nr = nvlist_get_number(nvl, "nr"); 648 rule->quick = nvlist_get_bool(nvl, "quick"); 649 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ); 650 rule->ifnot = nvlist_get_bool(nvl, "ifnot"); 651 rule->direction = nvlist_get_number(nvl, "direction"); 652 rule->proto = nvlist_get_number(nvl, "proto"); 653 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"), 654 PF_TAG_NAME_SIZE); 655 rule->match_tag = nvlist_get_number(nvl, "match_tag"); 656 rule->match_tag_not = nvlist_get_bool(nvl, "match_tag_not"); 657 658 labels = nvlist_get_string_array(nvl, "labels", &labelcount); 659 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT); 660 for (i = 0; i < labelcount; i++) 661 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE); 662 rule->ridentifier = nvlist_get_number(nvl, "ridentifier"); 663 664 pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "src"), 665 &rule->src); 666 pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "dst"), 667 &rule->dst); 668 669 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipsrc"), 670 &rule->ipsrc); 671 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipdst"), 672 &rule->ipdst); 673 674 rule->evaluations = nvlist_get_number(nvl, "evaluations"); 675 rule->packets[0] = nvlist_get_number(nvl, "packets-in"); 676 rule->packets[1] = nvlist_get_number(nvl, "packets-out"); 677 rule->bytes[0] = nvlist_get_number(nvl, "bytes-in"); 678 rule->bytes[1] = nvlist_get_number(nvl, "bytes-out"); 679 680 if (nvlist_exists_number(nvl, "timestamp")) { 681 rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp"); 682 } 683 684 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE); 685 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"), 686 PF_TAG_NAME_SIZE); 687 688 rule->dnpipe = nvlist_get_number(nvl, "dnpipe"); 689 rule->dnflags = nvlist_get_number(nvl, "dnflags"); 690 691 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative"); 692 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard"); 693 694 strlcpy(rule->bridge_to, nvlist_get_string(nvl, "bridge_to"), 695 IFNAMSIZ); 696 697 rule->action = nvlist_get_number(nvl, "action"); 698 } 699 700 int 701 pfctl_get_eth_rulesets_info(int dev, struct pfctl_eth_rulesets_info *ri, 702 const char *path) 703 { 704 nvlist_t *nvl; 705 int ret; 706 707 bzero(ri, sizeof(*ri)); 708 709 nvl = nvlist_create(0); 710 nvlist_add_string(nvl, "path", path); 711 712 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESETS, 256, &nvl)) != 0) 713 return (ret); 714 715 ri->nr = nvlist_get_number(nvl, "nr"); 716 717 nvlist_destroy(nvl); 718 return (0); 719 } 720 721 int 722 pfctl_get_eth_ruleset(int dev, const char *path, int nr, 723 struct pfctl_eth_ruleset_info *ri) 724 { 725 nvlist_t *nvl; 726 int ret; 727 728 bzero(ri, sizeof(*ri)); 729 730 nvl = nvlist_create(0); 731 nvlist_add_string(nvl, "path", path); 732 nvlist_add_number(nvl, "nr", nr); 733 734 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESET, 1024, &nvl)) != 0) 735 return (ret); 736 737 ri->nr = nvlist_get_number(nvl, "nr"); 738 strlcpy(ri->path, nvlist_get_string(nvl, "path"), MAXPATHLEN); 739 strlcpy(ri->name, nvlist_get_string(nvl, "name"), 740 PF_ANCHOR_NAME_SIZE); 741 742 nvlist_destroy(nvl); 743 744 return (0); 745 } 746 747 int 748 pfctl_get_eth_rules_info(int dev, struct pfctl_eth_rules_info *rules, 749 const char *path) 750 { 751 nvlist_t *nvl; 752 int ret; 753 754 bzero(rules, sizeof(*rules)); 755 756 nvl = nvlist_create(0); 757 nvlist_add_string(nvl, "anchor", path); 758 759 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULES, 1024, &nvl)) != 0) 760 return (ret); 761 762 rules->nr = nvlist_get_number(nvl, "nr"); 763 rules->ticket = nvlist_get_number(nvl, "ticket"); 764 765 nvlist_destroy(nvl); 766 return (0); 767 } 768 769 int 770 pfctl_get_eth_rule(int dev, uint32_t nr, uint32_t ticket, 771 const char *path, struct pfctl_eth_rule *rule, bool clear, 772 char *anchor_call) 773 { 774 nvlist_t *nvl; 775 int ret; 776 777 nvl = nvlist_create(0); 778 779 nvlist_add_string(nvl, "anchor", path); 780 nvlist_add_number(nvl, "ticket", ticket); 781 nvlist_add_number(nvl, "nr", nr); 782 nvlist_add_bool(nvl, "clear", clear); 783 784 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULE, 4096, &nvl)) != 0) 785 return (ret); 786 787 pfctl_nveth_rule_to_eth_rule(nvl, rule); 788 789 if (anchor_call) 790 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"), 791 MAXPATHLEN); 792 793 nvlist_destroy(nvl); 794 return (0); 795 } 796 797 int 798 pfctl_add_eth_rule(int dev, const struct pfctl_eth_rule *r, const char *anchor, 799 const char *anchor_call, uint32_t ticket) 800 { 801 struct pfioc_nv nv; 802 nvlist_t *nvl, *addr; 803 void *packed; 804 int error = 0; 805 size_t labelcount, size; 806 807 nvl = nvlist_create(0); 808 809 nvlist_add_number(nvl, "ticket", ticket); 810 nvlist_add_string(nvl, "anchor", anchor); 811 nvlist_add_string(nvl, "anchor_call", anchor_call); 812 813 nvlist_add_number(nvl, "nr", r->nr); 814 nvlist_add_bool(nvl, "quick", r->quick); 815 nvlist_add_string(nvl, "ifname", r->ifname); 816 nvlist_add_bool(nvl, "ifnot", r->ifnot); 817 nvlist_add_number(nvl, "direction", r->direction); 818 nvlist_add_number(nvl, "proto", r->proto); 819 nvlist_add_string(nvl, "match_tagname", r->match_tagname); 820 nvlist_add_bool(nvl, "match_tag_not", r->match_tag_not); 821 822 addr = pfctl_eth_addr_to_nveth_addr(&r->src); 823 if (addr == NULL) { 824 nvlist_destroy(nvl); 825 return (ENOMEM); 826 } 827 nvlist_add_nvlist(nvl, "src", addr); 828 nvlist_destroy(addr); 829 830 addr = pfctl_eth_addr_to_nveth_addr(&r->dst); 831 if (addr == NULL) { 832 nvlist_destroy(nvl); 833 return (ENOMEM); 834 } 835 nvlist_add_nvlist(nvl, "dst", addr); 836 nvlist_destroy(addr); 837 838 pfctl_nv_add_rule_addr(nvl, "ipsrc", &r->ipsrc); 839 pfctl_nv_add_rule_addr(nvl, "ipdst", &r->ipdst); 840 841 labelcount = 0; 842 while (labelcount < PF_RULE_MAX_LABEL_COUNT && 843 r->label[labelcount][0] != 0) { 844 nvlist_append_string_array(nvl, "labels", 845 r->label[labelcount]); 846 labelcount++; 847 } 848 nvlist_add_number(nvl, "ridentifier", r->ridentifier); 849 850 nvlist_add_string(nvl, "qname", r->qname); 851 nvlist_add_string(nvl, "tagname", r->tagname); 852 nvlist_add_number(nvl, "dnpipe", r->dnpipe); 853 nvlist_add_number(nvl, "dnflags", r->dnflags); 854 855 nvlist_add_string(nvl, "bridge_to", r->bridge_to); 856 857 nvlist_add_number(nvl, "action", r->action); 858 859 packed = nvlist_pack(nvl, &size); 860 if (packed == NULL) { 861 nvlist_destroy(nvl); 862 return (ENOMEM); 863 } 864 865 nv.len = size; 866 nv.size = size; 867 nv.data = packed; 868 869 if (ioctl(dev, DIOCADDETHRULE, &nv) != 0) 870 error = errno; 871 872 free(packed); 873 nvlist_destroy(nvl); 874 875 return (error); 876 } 877 878 static void 879 snl_add_msg_attr_addr_wrap(struct snl_writer *nw, uint32_t type, const struct pf_addr_wrap *addr) 880 { 881 int off; 882 883 off = snl_add_msg_attr_nested(nw, type); 884 885 snl_add_msg_attr_ip6(nw, PF_AT_ADDR, &addr->v.a.addr.v6); 886 snl_add_msg_attr_ip6(nw, PF_AT_MASK, &addr->v.a.mask.v6); 887 888 if (addr->type == PF_ADDR_DYNIFTL) 889 snl_add_msg_attr_string(nw, PF_AT_IFNAME, addr->v.ifname); 890 if (addr->type == PF_ADDR_TABLE) 891 snl_add_msg_attr_string(nw, PF_AT_TABLENAME, addr->v.tblname); 892 snl_add_msg_attr_u8(nw, PF_AT_TYPE, addr->type); 893 snl_add_msg_attr_u8(nw, PF_AT_IFLAGS, addr->iflags); 894 895 snl_end_attr_nested(nw, off); 896 } 897 898 static void 899 snl_add_msg_attr_rule_addr(struct snl_writer *nw, uint32_t type, const struct pf_rule_addr *addr) 900 { 901 int off; 902 903 off = snl_add_msg_attr_nested(nw, type); 904 905 snl_add_msg_attr_addr_wrap(nw, PF_RAT_ADDR, &addr->addr); 906 snl_add_msg_attr_u16(nw, PF_RAT_SRC_PORT, addr->port[0]); 907 snl_add_msg_attr_u16(nw, PF_RAT_DST_PORT, addr->port[1]); 908 snl_add_msg_attr_u8(nw, PF_RAT_NEG, addr->neg); 909 snl_add_msg_attr_u8(nw, PF_RAT_OP, addr->port_op); 910 911 snl_end_attr_nested(nw, off); 912 } 913 914 static void 915 snl_add_msg_attr_rule_labels(struct snl_writer *nw, uint32_t type, const char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]) 916 { 917 int off, i = 0; 918 919 off = snl_add_msg_attr_nested(nw, type); 920 921 while (labels[i][0] != 0 && 922 i < PF_RULE_MAX_LABEL_COUNT) { 923 snl_add_msg_attr_string(nw, PF_LT_LABEL, labels[i]); 924 i++; 925 } 926 927 snl_end_attr_nested(nw, off); 928 } 929 930 static void 931 snl_add_msg_attr_mape(struct snl_writer *nw, uint32_t type, const struct pf_mape_portset *me) 932 { 933 int off; 934 935 off = snl_add_msg_attr_nested(nw, type); 936 937 snl_add_msg_attr_u8(nw, PF_MET_OFFSET, me->offset); 938 snl_add_msg_attr_u8(nw, PF_MET_PSID_LEN, me->psidlen); 939 snl_add_msg_attr_u16(nw, PF_MET_PSID, me->psid); 940 941 snl_end_attr_nested(nw, off); 942 } 943 944 static void 945 snl_add_msg_attr_rpool(struct snl_writer *nw, uint32_t type, const struct pfctl_pool *pool) 946 { 947 int off; 948 949 off = snl_add_msg_attr_nested(nw, type); 950 951 snl_add_msg_attr(nw, PF_PT_KEY, sizeof(pool->key), &pool->key); 952 snl_add_msg_attr_ip6(nw, PF_PT_COUNTER, &pool->counter.v6); 953 snl_add_msg_attr_u32(nw, PF_PT_TBLIDX, pool->tblidx); 954 snl_add_msg_attr_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]); 955 snl_add_msg_attr_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]); 956 snl_add_msg_attr_u8(nw, PF_PT_OPTS, pool->opts); 957 snl_add_msg_attr_mape(nw, PF_PT_MAPE, &pool->mape); 958 959 snl_end_attr_nested(nw, off); 960 } 961 962 static void 963 snl_add_msg_attr_timeouts(struct snl_writer *nw, uint32_t type, const uint32_t *timeouts) 964 { 965 int off; 966 967 off = snl_add_msg_attr_nested(nw, type); 968 969 for (int i = 0; i < PFTM_MAX; i++) 970 snl_add_msg_attr_u32(nw, PF_TT_TIMEOUT, timeouts[i]); 971 972 snl_end_attr_nested(nw, off); 973 } 974 975 static void 976 snl_add_msg_attr_uid(struct snl_writer *nw, uint32_t type, const struct pf_rule_uid *uid) 977 { 978 int off; 979 980 off = snl_add_msg_attr_nested(nw, type); 981 982 snl_add_msg_attr_u32(nw, PF_RUT_UID_LOW, uid->uid[0]); 983 snl_add_msg_attr_u32(nw, PF_RUT_UID_HIGH, uid->uid[1]); 984 snl_add_msg_attr_u8(nw, PF_RUT_OP, uid->op); 985 986 snl_end_attr_nested(nw, off); 987 } 988 989 static void 990 snl_add_msg_attr_pf_rule(struct snl_writer *nw, uint32_t type, const struct pfctl_rule *r) 991 { 992 int off; 993 994 off = snl_add_msg_attr_nested(nw, type); 995 996 snl_add_msg_attr_rule_addr(nw, PF_RT_SRC, &r->src); 997 snl_add_msg_attr_rule_addr(nw, PF_RT_DST, &r->dst); 998 snl_add_msg_attr_rule_labels(nw, PF_RT_LABELS, r->label); 999 snl_add_msg_attr_u32(nw, PF_RT_RIDENTIFIER, r->ridentifier); 1000 snl_add_msg_attr_string(nw, PF_RT_IFNAME, r->ifname); 1001 snl_add_msg_attr_string(nw, PF_RT_QNAME, r->qname); 1002 snl_add_msg_attr_string(nw, PF_RT_PQNAME, r->pqname); 1003 snl_add_msg_attr_string(nw, PF_RT_TAGNAME, r->tagname); 1004 snl_add_msg_attr_string(nw, PF_RT_MATCH_TAGNAME, r->match_tagname); 1005 snl_add_msg_attr_string(nw, PF_RT_OVERLOAD_TBLNAME, r->overload_tblname); 1006 snl_add_msg_attr_rpool(nw, PF_RT_RPOOL, &r->rpool); 1007 snl_add_msg_attr_u32(nw, PF_RT_OS_FINGERPRINT, r->os_fingerprint); 1008 snl_add_msg_attr_u32(nw, PF_RT_RTABLEID, r->rtableid); 1009 snl_add_msg_attr_timeouts(nw, PF_RT_TIMEOUT, r->timeout); 1010 snl_add_msg_attr_u32(nw, PF_RT_MAX_STATES, r->max_states); 1011 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_NODES, r->max_src_nodes); 1012 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_STATES, r->max_src_states); 1013 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, r->max_src_conn_rate.limit); 1014 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, r->max_src_conn_rate.seconds); 1015 1016 snl_add_msg_attr_u16(nw, PF_RT_DNPIPE, r->dnpipe); 1017 snl_add_msg_attr_u16(nw, PF_RT_DNRPIPE, r->dnrpipe); 1018 snl_add_msg_attr_u32(nw, PF_RT_DNFLAGS, r->free_flags); 1019 1020 snl_add_msg_attr_u32(nw, PF_RT_NR, r->nr); 1021 snl_add_msg_attr_u32(nw, PF_RT_PROB, r->prob); 1022 snl_add_msg_attr_u32(nw, PF_RT_CUID, r->cuid); 1023 snl_add_msg_attr_u32(nw, PF_RT_CPID, r->cpid); 1024 1025 snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP, r->return_icmp); 1026 snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP6, r->return_icmp6); 1027 snl_add_msg_attr_u16(nw, PF_RT_MAX_MSS, r->max_mss); 1028 snl_add_msg_attr_u16(nw, PF_RT_SCRUB_FLAGS, r->scrub_flags); 1029 1030 snl_add_msg_attr_uid(nw, PF_RT_UID, &r->uid); 1031 snl_add_msg_attr_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&r->gid); 1032 1033 snl_add_msg_attr_u32(nw, PF_RT_RULE_FLAG, r->rule_flag); 1034 snl_add_msg_attr_u8(nw, PF_RT_ACTION, r->action); 1035 snl_add_msg_attr_u8(nw, PF_RT_DIRECTION, r->direction); 1036 snl_add_msg_attr_u8(nw, PF_RT_LOG, r->log); 1037 snl_add_msg_attr_u8(nw, PF_RT_LOGIF, r->logif); 1038 snl_add_msg_attr_u8(nw, PF_RT_QUICK, r->quick); 1039 snl_add_msg_attr_u8(nw, PF_RT_IF_NOT, r->ifnot); 1040 snl_add_msg_attr_u8(nw, PF_RT_MATCH_TAG_NOT, r->match_tag_not); 1041 snl_add_msg_attr_u8(nw, PF_RT_NATPASS, r->natpass); 1042 snl_add_msg_attr_u8(nw, PF_RT_KEEP_STATE, r->keep_state); 1043 snl_add_msg_attr_u8(nw, PF_RT_AF, r->af); 1044 snl_add_msg_attr_u8(nw, PF_RT_PROTO, r->proto); 1045 snl_add_msg_attr_u8(nw, PF_RT_TYPE, r->type); 1046 snl_add_msg_attr_u8(nw, PF_RT_CODE, r->code); 1047 snl_add_msg_attr_u8(nw, PF_RT_FLAGS, r->flags); 1048 snl_add_msg_attr_u8(nw, PF_RT_FLAGSET, r->flagset); 1049 snl_add_msg_attr_u8(nw, PF_RT_MIN_TTL, r->min_ttl); 1050 snl_add_msg_attr_u8(nw, PF_RT_ALLOW_OPTS, r->allow_opts); 1051 snl_add_msg_attr_u8(nw, PF_RT_RT, r->rt); 1052 snl_add_msg_attr_u8(nw, PF_RT_RETURN_TTL, r->return_ttl); 1053 snl_add_msg_attr_u8(nw, PF_RT_TOS, r->tos); 1054 snl_add_msg_attr_u8(nw, PF_RT_SET_TOS, r->set_tos); 1055 1056 snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_RELATIVE, r->anchor_relative); 1057 snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_WILDCARD, r->anchor_wildcard); 1058 snl_add_msg_attr_u8(nw, PF_RT_FLUSH, r->flush); 1059 snl_add_msg_attr_u8(nw, PF_RT_PRIO, r->prio); 1060 snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO, r->set_prio[0]); 1061 snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO_REPLY, r->set_prio[1]); 1062 1063 snl_add_msg_attr_ip6(nw, PF_RT_DIVERT_ADDRESS, &r->divert.addr.v6); 1064 snl_add_msg_attr_u16(nw, PF_RT_DIVERT_PORT, r->divert.port); 1065 1066 snl_end_attr_nested(nw, off); 1067 } 1068 1069 int 1070 pfctl_add_rule(int dev __unused, const struct pfctl_rule *r, const char *anchor, 1071 const char *anchor_call, uint32_t ticket, uint32_t pool_ticket) 1072 { 1073 struct snl_writer nw; 1074 struct snl_state ss = {}; 1075 struct snl_errmsg_data e = {}; 1076 struct nlmsghdr *hdr; 1077 uint32_t seq_id; 1078 int family_id; 1079 1080 snl_init(&ss, NETLINK_GENERIC); 1081 family_id = snl_get_genl_family(&ss, PFNL_FAMILY_NAME); 1082 if (family_id == 0) 1083 return (ENOTSUP); 1084 1085 snl_init_writer(&ss, &nw); 1086 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_ADDRULE); 1087 hdr->nlmsg_flags |= NLM_F_DUMP; 1088 snl_add_msg_attr_u32(&nw, PF_ART_TICKET, ticket); 1089 snl_add_msg_attr_u32(&nw, PF_ART_POOL_TICKET, pool_ticket); 1090 snl_add_msg_attr_string(&nw, PF_ART_ANCHOR, anchor); 1091 snl_add_msg_attr_string(&nw, PF_ART_ANCHOR_CALL, anchor_call); 1092 1093 snl_add_msg_attr_pf_rule(&nw, PF_ART_RULE, r); 1094 1095 if ((hdr = snl_finalize_msg(&nw)) == NULL) 1096 return (ENXIO); 1097 1098 seq_id = hdr->nlmsg_seq; 1099 1100 if (! snl_send_message(&ss, hdr)) { 1101 printf("Send failed\n"); 1102 return (ENXIO); 1103 } 1104 1105 while ((hdr = snl_read_reply_multi(&ss, seq_id, &e)) != NULL) { 1106 } 1107 1108 return (e.error); 1109 } 1110 1111 int 1112 pfctl_get_rules_info(int dev, struct pfctl_rules_info *rules, uint32_t ruleset, 1113 const char *path) 1114 { 1115 struct pfioc_rule pr; 1116 int ret; 1117 1118 bzero(&pr, sizeof(pr)); 1119 if (strlcpy(pr.anchor, path, sizeof(pr.anchor)) >= sizeof(pr.anchor)) 1120 return (E2BIG); 1121 1122 pr.rule.action = ruleset; 1123 ret = ioctl(dev, DIOCGETRULES, &pr); 1124 if (ret != 0) 1125 return (ret); 1126 1127 rules->nr = pr.nr; 1128 rules->ticket = pr.ticket; 1129 1130 return (0); 1131 } 1132 1133 int 1134 pfctl_get_rule(int dev, uint32_t nr, uint32_t ticket, const char *anchor, 1135 uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call) 1136 { 1137 return (pfctl_get_clear_rule(dev, nr, ticket, anchor, ruleset, rule, 1138 anchor_call, false)); 1139 } 1140 1141 int pfctl_get_clear_rule(int dev, uint32_t nr, uint32_t ticket, 1142 const char *anchor, uint32_t ruleset, struct pfctl_rule *rule, 1143 char *anchor_call, bool clear) 1144 { 1145 nvlist_t *nvl; 1146 int ret; 1147 1148 nvl = nvlist_create(0); 1149 if (nvl == 0) 1150 return (ENOMEM); 1151 1152 nvlist_add_number(nvl, "nr", nr); 1153 nvlist_add_number(nvl, "ticket", ticket); 1154 nvlist_add_string(nvl, "anchor", anchor); 1155 nvlist_add_number(nvl, "ruleset", ruleset); 1156 1157 if (clear) 1158 nvlist_add_bool(nvl, "clear_counter", true); 1159 1160 if ((ret = pfctl_do_ioctl(dev, DIOCGETRULENV, 8192, &nvl)) != 0) 1161 return (ret); 1162 1163 pf_nvrule_to_rule(nvlist_get_nvlist(nvl, "rule"), rule); 1164 1165 if (anchor_call) 1166 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"), 1167 MAXPATHLEN); 1168 1169 nvlist_destroy(nvl); 1170 1171 return (0); 1172 } 1173 1174 int 1175 pfctl_set_keepcounters(int dev, bool keep) 1176 { 1177 struct pfioc_nv nv; 1178 nvlist_t *nvl; 1179 int ret; 1180 1181 nvl = nvlist_create(0); 1182 1183 nvlist_add_bool(nvl, "keep_counters", keep); 1184 1185 nv.data = nvlist_pack(nvl, &nv.len); 1186 nv.size = nv.len; 1187 1188 nvlist_destroy(nvl); 1189 1190 ret = ioctl(dev, DIOCKEEPCOUNTERS, &nv); 1191 1192 free(nv.data); 1193 return (ret); 1194 } 1195 1196 struct pfctl_creator { 1197 uint32_t id; 1198 }; 1199 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1200 #define _OUT(_field) offsetof(struct pfctl_creator, _field) 1201 static struct snl_attr_parser ap_creators[] = { 1202 { .type = PF_ST_CREATORID, .off = _OUT(id), .cb = snl_attr_get_uint32 }, 1203 }; 1204 static struct snl_field_parser fp_creators[] = { 1205 }; 1206 #undef _IN 1207 #undef _OUT 1208 SNL_DECLARE_PARSER(creator_parser, struct genlmsghdr, fp_creators, ap_creators); 1209 1210 static int 1211 pfctl_get_creators_nl(struct snl_state *ss, uint32_t *creators, size_t *len) 1212 { 1213 1214 int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME); 1215 size_t i = 0; 1216 1217 struct nlmsghdr *hdr; 1218 struct snl_writer nw; 1219 1220 if (family_id == 0) 1221 return (ENOTSUP); 1222 1223 snl_init_writer(ss, &nw); 1224 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETCREATORS); 1225 hdr->nlmsg_flags |= NLM_F_DUMP; 1226 hdr = snl_finalize_msg(&nw); 1227 if (hdr == NULL) 1228 return (ENOMEM); 1229 uint32_t seq_id = hdr->nlmsg_seq; 1230 1231 snl_send_message(ss, hdr); 1232 1233 struct snl_errmsg_data e = {}; 1234 while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) { 1235 struct pfctl_creator c; 1236 bzero(&c, sizeof(c)); 1237 1238 if (!snl_parse_nlmsg(ss, hdr, &creator_parser, &c)) 1239 continue; 1240 1241 creators[i] = c.id; 1242 i++; 1243 if (i > *len) 1244 return (E2BIG); 1245 } 1246 1247 *len = i; 1248 1249 return (0); 1250 } 1251 1252 int 1253 pfctl_get_creatorids(uint32_t *creators, size_t *len) 1254 { 1255 struct snl_state ss = {}; 1256 int error; 1257 1258 snl_init(&ss, NETLINK_GENERIC); 1259 error = pfctl_get_creators_nl(&ss, creators, len); 1260 snl_free(&ss); 1261 1262 return (error); 1263 1264 } 1265 1266 static void 1267 pfctl_nv_add_state_cmp(nvlist_t *nvl, const char *name, 1268 const struct pfctl_state_cmp *cmp) 1269 { 1270 nvlist_t *nv; 1271 1272 nv = nvlist_create(0); 1273 1274 nvlist_add_number(nv, "id", cmp->id); 1275 nvlist_add_number(nv, "creatorid", htonl(cmp->creatorid)); 1276 nvlist_add_number(nv, "direction", cmp->direction); 1277 1278 nvlist_add_nvlist(nvl, name, nv); 1279 nvlist_destroy(nv); 1280 } 1281 1282 static inline bool 1283 snl_attr_get_pfaddr(struct snl_state *ss __unused, struct nlattr *nla, 1284 const void *arg __unused, void *target) 1285 { 1286 memcpy(target, NLA_DATA(nla), NLA_DATA_LEN(nla)); 1287 return (true); 1288 } 1289 1290 static inline bool 1291 snl_attr_store_ifname(struct snl_state *ss __unused, struct nlattr *nla, 1292 const void *arg __unused, void *target) 1293 { 1294 size_t maxlen = NLA_DATA_LEN(nla); 1295 1296 if (strnlen((char *)NLA_DATA(nla), maxlen) < maxlen) { 1297 strlcpy(target, (char *)NLA_DATA(nla), maxlen); 1298 return (true); 1299 } 1300 return (false); 1301 } 1302 1303 #define _OUT(_field) offsetof(struct pfctl_state_peer, _field) 1304 static const struct snl_attr_parser nla_p_speer[] = { 1305 { .type = PF_STP_SEQLO, .off = _OUT(seqlo), .cb = snl_attr_get_uint32 }, 1306 { .type = PF_STP_SEQHI, .off = _OUT(seqhi), .cb = snl_attr_get_uint32 }, 1307 { .type = PF_STP_SEQDIFF, .off = _OUT(seqdiff), .cb = snl_attr_get_uint32 }, 1308 { .type = PF_STP_STATE, .off = _OUT(state), .cb = snl_attr_get_uint8 }, 1309 { .type = PF_STP_WSCALE, .off = _OUT(wscale), .cb = snl_attr_get_uint8 }, 1310 }; 1311 SNL_DECLARE_ATTR_PARSER(speer_parser, nla_p_speer); 1312 #undef _OUT 1313 1314 #define _OUT(_field) offsetof(struct pf_state_key_export, _field) 1315 static const struct snl_attr_parser nla_p_skey[] = { 1316 { .type = PF_STK_ADDR0, .off = _OUT(addr[0]), .cb = snl_attr_get_pfaddr }, 1317 { .type = PF_STK_ADDR1, .off = _OUT(addr[1]), .cb = snl_attr_get_pfaddr }, 1318 { .type = PF_STK_PORT0, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 }, 1319 { .type = PF_STK_PORT1, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 }, 1320 }; 1321 SNL_DECLARE_ATTR_PARSER(skey_parser, nla_p_skey); 1322 #undef _OUT 1323 1324 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1325 #define _OUT(_field) offsetof(struct pfctl_state, _field) 1326 static struct snl_attr_parser ap_state[] = { 1327 { .type = PF_ST_ID, .off = _OUT(id), .cb = snl_attr_get_uint64 }, 1328 { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = snl_attr_get_uint32 }, 1329 { .type = PF_ST_IFNAME, .off = _OUT(ifname), .cb = snl_attr_store_ifname }, 1330 { .type = PF_ST_ORIG_IFNAME, .off = _OUT(orig_ifname), .cb = snl_attr_store_ifname }, 1331 { .type = PF_ST_KEY_WIRE, .off = _OUT(key[0]), .arg = &skey_parser, .cb = snl_attr_get_nested }, 1332 { .type = PF_ST_KEY_STACK, .off = _OUT(key[1]), .arg = &skey_parser, .cb = snl_attr_get_nested }, 1333 { .type = PF_ST_PEER_SRC, .off = _OUT(src), .arg = &speer_parser, .cb = snl_attr_get_nested }, 1334 { .type = PF_ST_PEER_DST, .off = _OUT(dst), .arg = &speer_parser, .cb = snl_attr_get_nested }, 1335 { .type = PF_ST_RT_ADDR, .off = _OUT(rt_addr), .cb = snl_attr_get_pfaddr }, 1336 { .type = PF_ST_RULE, .off = _OUT(rule), .cb = snl_attr_get_uint32 }, 1337 { .type = PF_ST_ANCHOR, .off = _OUT(anchor), .cb = snl_attr_get_uint32 }, 1338 { .type = PF_ST_NAT_RULE, .off = _OUT(nat_rule), .cb = snl_attr_get_uint32 }, 1339 { .type = PF_ST_CREATION, .off = _OUT(creation), .cb = snl_attr_get_uint32 }, 1340 { .type = PF_ST_EXPIRE, .off = _OUT(expire), .cb = snl_attr_get_uint32 }, 1341 { .type = PF_ST_PACKETS0, .off = _OUT(packets[0]), .cb = snl_attr_get_uint64 }, 1342 { .type = PF_ST_PACKETS1, .off = _OUT(packets[1]), .cb = snl_attr_get_uint64 }, 1343 { .type = PF_ST_BYTES0, .off = _OUT(bytes[0]), .cb = snl_attr_get_uint64 }, 1344 { .type = PF_ST_BYTES1, .off = _OUT(bytes[1]), .cb = snl_attr_get_uint64 }, 1345 { .type = PF_ST_AF, .off = _OUT(key[0].af), .cb = snl_attr_get_uint8 }, 1346 { .type = PF_ST_PROTO, .off = _OUT(key[0].proto), .cb = snl_attr_get_uint8 }, 1347 { .type = PF_ST_DIRECTION, .off = _OUT(direction), .cb = snl_attr_get_uint8 }, 1348 { .type = PF_ST_LOG, .off = _OUT(log), .cb = snl_attr_get_uint8 }, 1349 { .type = PF_ST_STATE_FLAGS, .off = _OUT(state_flags), .cb = snl_attr_get_uint16 }, 1350 { .type = PF_ST_SYNC_FLAGS, .off = _OUT(sync_flags), .cb = snl_attr_get_uint8 }, 1351 }; 1352 static struct snl_field_parser fp_state[] = { 1353 }; 1354 #undef _IN 1355 #undef _OUT 1356 SNL_DECLARE_PARSER(state_parser, struct genlmsghdr, fp_state, ap_state); 1357 1358 static const struct snl_hdr_parser *all_parsers[] = { 1359 &state_parser, &skey_parser, &speer_parser, 1360 &creator_parser, 1361 }; 1362 1363 static int 1364 pfctl_get_states_nl(struct pfctl_state_filter *filter, struct snl_state *ss, pfctl_get_state_fn f, void *arg) 1365 { 1366 SNL_VERIFY_PARSERS(all_parsers); 1367 int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME); 1368 int ret; 1369 1370 struct nlmsghdr *hdr; 1371 struct snl_writer nw; 1372 1373 if (family_id == 0) 1374 return (ENOTSUP); 1375 1376 snl_init_writer(ss, &nw); 1377 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETSTATES); 1378 hdr->nlmsg_flags |= NLM_F_DUMP; 1379 snl_add_msg_attr_string(&nw, PF_ST_IFNAME, filter->ifname); 1380 snl_add_msg_attr_u16(&nw, PF_ST_PROTO, filter->proto); 1381 snl_add_msg_attr_u8(&nw, PF_ST_AF, filter->af); 1382 snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_ADDR, &filter->addr.v6); 1383 snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_MASK, &filter->mask.v6); 1384 1385 hdr = snl_finalize_msg(&nw); 1386 if (hdr == NULL) 1387 return (ENOMEM); 1388 1389 uint32_t seq_id = hdr->nlmsg_seq; 1390 1391 snl_send_message(ss, hdr); 1392 1393 struct snl_errmsg_data e = {}; 1394 while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) { 1395 struct pfctl_state s; 1396 bzero(&s, sizeof(s)); 1397 if (!snl_parse_nlmsg(ss, hdr, &state_parser, &s)) 1398 continue; 1399 1400 s.key[1].af = s.key[0].af; 1401 s.key[1].proto = s.key[0].proto; 1402 1403 ret = f(&s, arg); 1404 if (ret != 0) 1405 return (ret); 1406 } 1407 1408 return (0); 1409 } 1410 1411 int 1412 pfctl_get_states_iter(pfctl_get_state_fn f, void *arg) 1413 { 1414 struct pfctl_state_filter filter = {}; 1415 return (pfctl_get_filtered_states_iter(&filter, f, arg)); 1416 } 1417 1418 int 1419 pfctl_get_filtered_states_iter(struct pfctl_state_filter *filter, pfctl_get_state_fn f, void *arg) 1420 { 1421 struct snl_state ss = {}; 1422 int error; 1423 1424 snl_init(&ss, NETLINK_GENERIC); 1425 error = pfctl_get_states_nl(filter, &ss, f, arg); 1426 snl_free(&ss); 1427 1428 return (error); 1429 } 1430 1431 static int 1432 pfctl_append_states(struct pfctl_state *s, void *arg) 1433 { 1434 struct pfctl_state *new; 1435 struct pfctl_states *states = (struct pfctl_states *)arg; 1436 1437 new = malloc(sizeof(*s)); 1438 if (new == NULL) 1439 return (ENOMEM); 1440 1441 memcpy(new, s, sizeof(*s)); 1442 1443 TAILQ_INSERT_TAIL(&states->states, new, entry); 1444 1445 return (0); 1446 } 1447 1448 int 1449 pfctl_get_states(int dev __unused, struct pfctl_states *states) 1450 { 1451 int ret; 1452 1453 bzero(states, sizeof(*states)); 1454 TAILQ_INIT(&states->states); 1455 1456 ret = pfctl_get_states_iter(pfctl_append_states, states); 1457 if (ret != 0) { 1458 pfctl_free_states(states); 1459 return (ret); 1460 } 1461 1462 return (0); 1463 } 1464 1465 void 1466 pfctl_free_states(struct pfctl_states *states) 1467 { 1468 struct pfctl_state *s, *tmp; 1469 1470 TAILQ_FOREACH_SAFE(s, &states->states, entry, tmp) { 1471 free(s); 1472 } 1473 1474 bzero(states, sizeof(*states)); 1475 } 1476 1477 static int 1478 _pfctl_clear_states(int dev, const struct pfctl_kill *kill, 1479 unsigned int *killed, uint64_t ioctlval) 1480 { 1481 nvlist_t *nvl; 1482 int ret; 1483 1484 nvl = nvlist_create(0); 1485 1486 pfctl_nv_add_state_cmp(nvl, "cmp", &kill->cmp); 1487 nvlist_add_number(nvl, "af", kill->af); 1488 nvlist_add_number(nvl, "proto", kill->proto); 1489 pfctl_nv_add_rule_addr(nvl, "src", &kill->src); 1490 pfctl_nv_add_rule_addr(nvl, "dst", &kill->dst); 1491 pfctl_nv_add_rule_addr(nvl, "rt_addr", &kill->rt_addr); 1492 nvlist_add_string(nvl, "ifname", kill->ifname); 1493 nvlist_add_string(nvl, "label", kill->label); 1494 nvlist_add_bool(nvl, "kill_match", kill->kill_match); 1495 nvlist_add_bool(nvl, "nat", kill->nat); 1496 1497 if ((ret = pfctl_do_ioctl(dev, ioctlval, 1024, &nvl)) != 0) 1498 return (ret); 1499 1500 if (killed) 1501 *killed = nvlist_get_number(nvl, "killed"); 1502 1503 nvlist_destroy(nvl); 1504 1505 return (ret); 1506 } 1507 1508 int 1509 pfctl_clear_states(int dev, const struct pfctl_kill *kill, 1510 unsigned int *killed) 1511 { 1512 return (_pfctl_clear_states(dev, kill, killed, DIOCCLRSTATESNV)); 1513 } 1514 1515 int 1516 pfctl_kill_states(int dev, const struct pfctl_kill *kill, unsigned int *killed) 1517 { 1518 return (_pfctl_clear_states(dev, kill, killed, DIOCKILLSTATESNV)); 1519 } 1520 1521 int 1522 pfctl_clear_rules(int dev, const char *anchorname) 1523 { 1524 struct pfioc_trans trans; 1525 struct pfioc_trans_e transe[2]; 1526 int ret; 1527 1528 bzero(&trans, sizeof(trans)); 1529 bzero(&transe, sizeof(transe)); 1530 1531 transe[0].rs_num = PF_RULESET_SCRUB; 1532 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor)) 1533 >= sizeof(transe[0].anchor)) 1534 return (E2BIG); 1535 1536 transe[1].rs_num = PF_RULESET_FILTER; 1537 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor)) 1538 >= sizeof(transe[1].anchor)) 1539 return (E2BIG); 1540 1541 trans.size = 2; 1542 trans.esize = sizeof(transe[0]); 1543 trans.array = transe; 1544 1545 ret = ioctl(dev, DIOCXBEGIN, &trans); 1546 if (ret != 0) 1547 return (ret); 1548 return ioctl(dev, DIOCXCOMMIT, &trans); 1549 } 1550 1551 int 1552 pfctl_clear_nat(int dev, const char *anchorname) 1553 { 1554 struct pfioc_trans trans; 1555 struct pfioc_trans_e transe[3]; 1556 int ret; 1557 1558 bzero(&trans, sizeof(trans)); 1559 bzero(&transe, sizeof(transe)); 1560 1561 transe[0].rs_num = PF_RULESET_NAT; 1562 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor)) 1563 >= sizeof(transe[0].anchor)) 1564 return (E2BIG); 1565 1566 transe[1].rs_num = PF_RULESET_BINAT; 1567 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor)) 1568 >= sizeof(transe[0].anchor)) 1569 return (E2BIG); 1570 1571 transe[2].rs_num = PF_RULESET_RDR; 1572 if (strlcpy(transe[2].anchor, anchorname, sizeof(transe[2].anchor)) 1573 >= sizeof(transe[2].anchor)) 1574 return (E2BIG); 1575 1576 trans.size = 3; 1577 trans.esize = sizeof(transe[0]); 1578 trans.array = transe; 1579 1580 ret = ioctl(dev, DIOCXBEGIN, &trans); 1581 if (ret != 0) 1582 return (ret); 1583 return ioctl(dev, DIOCXCOMMIT, &trans); 1584 } 1585 int 1586 pfctl_clear_eth_rules(int dev, const char *anchorname) 1587 { 1588 struct pfioc_trans trans; 1589 struct pfioc_trans_e transe; 1590 int ret; 1591 1592 bzero(&trans, sizeof(trans)); 1593 bzero(&transe, sizeof(transe)); 1594 1595 transe.rs_num = PF_RULESET_ETH; 1596 if (strlcpy(transe.anchor, anchorname, sizeof(transe.anchor)) 1597 >= sizeof(transe.anchor)) 1598 return (E2BIG); 1599 1600 trans.size = 1; 1601 trans.esize = sizeof(transe); 1602 trans.array = &transe; 1603 1604 ret = ioctl(dev, DIOCXBEGIN, &trans); 1605 if (ret != 0) 1606 return (ret); 1607 return ioctl(dev, DIOCXCOMMIT, &trans); 1608 } 1609 1610 static int 1611 pfctl_get_limit(int dev, const int index, uint *limit) 1612 { 1613 struct pfioc_limit pl; 1614 1615 bzero(&pl, sizeof(pl)); 1616 pl.index = index; 1617 1618 if (ioctl(dev, DIOCGETLIMIT, &pl) == -1) 1619 return (errno); 1620 1621 *limit = pl.limit; 1622 1623 return (0); 1624 } 1625 1626 int 1627 pfctl_set_syncookies(int dev, const struct pfctl_syncookies *s) 1628 { 1629 struct pfioc_nv nv; 1630 nvlist_t *nvl; 1631 int ret; 1632 uint state_limit; 1633 uint64_t lim, hi, lo; 1634 1635 ret = pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit); 1636 if (ret != 0) 1637 return (ret); 1638 1639 lim = state_limit; 1640 hi = lim * s->highwater / 100; 1641 lo = lim * s->lowwater / 100; 1642 1643 if (lo == hi) 1644 hi++; 1645 1646 nvl = nvlist_create(0); 1647 1648 nvlist_add_bool(nvl, "enabled", s->mode != PFCTL_SYNCOOKIES_NEVER); 1649 nvlist_add_bool(nvl, "adaptive", s->mode == PFCTL_SYNCOOKIES_ADAPTIVE); 1650 nvlist_add_number(nvl, "highwater", hi); 1651 nvlist_add_number(nvl, "lowwater", lo); 1652 1653 nv.data = nvlist_pack(nvl, &nv.len); 1654 nv.size = nv.len; 1655 nvlist_destroy(nvl); 1656 nvl = NULL; 1657 1658 ret = ioctl(dev, DIOCSETSYNCOOKIES, &nv); 1659 1660 free(nv.data); 1661 return (ret); 1662 } 1663 1664 int 1665 pfctl_get_syncookies(int dev, struct pfctl_syncookies *s) 1666 { 1667 nvlist_t *nvl; 1668 int ret; 1669 uint state_limit; 1670 bool enabled, adaptive; 1671 1672 ret = pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit); 1673 if (ret != 0) 1674 return (ret); 1675 1676 bzero(s, sizeof(*s)); 1677 1678 nvl = nvlist_create(0); 1679 1680 if ((ret = pfctl_do_ioctl(dev, DIOCGETSYNCOOKIES, 256, &nvl)) != 0) 1681 return (errno); 1682 1683 enabled = nvlist_get_bool(nvl, "enabled"); 1684 adaptive = nvlist_get_bool(nvl, "adaptive"); 1685 1686 if (enabled) { 1687 if (adaptive) 1688 s->mode = PFCTL_SYNCOOKIES_ADAPTIVE; 1689 else 1690 s->mode = PFCTL_SYNCOOKIES_ALWAYS; 1691 } else { 1692 s->mode = PFCTL_SYNCOOKIES_NEVER; 1693 } 1694 1695 s->highwater = nvlist_get_number(nvl, "highwater") * 100 / state_limit; 1696 s->lowwater = nvlist_get_number(nvl, "lowwater") * 100 / state_limit; 1697 s->halfopen_states = nvlist_get_number(nvl, "halfopen_states"); 1698 1699 nvlist_destroy(nvl); 1700 1701 return (0); 1702 } 1703 1704 int 1705 pfctl_table_add_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 1706 *addr, int size, int *nadd, int flags) 1707 { 1708 struct pfioc_table io; 1709 1710 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 1711 return (EINVAL); 1712 } 1713 bzero(&io, sizeof io); 1714 io.pfrio_flags = flags; 1715 io.pfrio_table = *tbl; 1716 io.pfrio_buffer = addr; 1717 io.pfrio_esize = sizeof(*addr); 1718 io.pfrio_size = size; 1719 1720 if (ioctl(dev, DIOCRADDADDRS, &io)) 1721 return (errno); 1722 if (nadd != NULL) 1723 *nadd = io.pfrio_nadd; 1724 return (0); 1725 } 1726 1727 int 1728 pfctl_table_del_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 1729 *addr, int size, int *ndel, int flags) 1730 { 1731 struct pfioc_table io; 1732 1733 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 1734 return (EINVAL); 1735 } 1736 bzero(&io, sizeof io); 1737 io.pfrio_flags = flags; 1738 io.pfrio_table = *tbl; 1739 io.pfrio_buffer = addr; 1740 io.pfrio_esize = sizeof(*addr); 1741 io.pfrio_size = size; 1742 1743 if (ioctl(dev, DIOCRDELADDRS, &io)) 1744 return (errno); 1745 if (ndel != NULL) 1746 *ndel = io.pfrio_ndel; 1747 return (0); 1748 } 1749 1750 int 1751 pfctl_table_set_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 1752 *addr, int size, int *size2, int *nadd, int *ndel, int *nchange, int flags) 1753 { 1754 struct pfioc_table io; 1755 1756 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 1757 return (EINVAL); 1758 } 1759 bzero(&io, sizeof io); 1760 io.pfrio_flags = flags; 1761 io.pfrio_table = *tbl; 1762 io.pfrio_buffer = addr; 1763 io.pfrio_esize = sizeof(*addr); 1764 io.pfrio_size = size; 1765 io.pfrio_size2 = (size2 != NULL) ? *size2 : 0; 1766 if (ioctl(dev, DIOCRSETADDRS, &io)) 1767 return (-1); 1768 if (nadd != NULL) 1769 *nadd = io.pfrio_nadd; 1770 if (ndel != NULL) 1771 *ndel = io.pfrio_ndel; 1772 if (nchange != NULL) 1773 *nchange = io.pfrio_nchange; 1774 if (size2 != NULL) 1775 *size2 = io.pfrio_size2; 1776 return (0); 1777 } 1778 1779 int pfctl_table_get_addrs(int dev, struct pfr_table *tbl, struct pfr_addr *addr, 1780 int *size, int flags) 1781 { 1782 struct pfioc_table io; 1783 1784 if (tbl == NULL || size == NULL || *size < 0 || 1785 (*size && addr == NULL)) { 1786 return (EINVAL); 1787 } 1788 bzero(&io, sizeof io); 1789 io.pfrio_flags = flags; 1790 io.pfrio_table = *tbl; 1791 io.pfrio_buffer = addr; 1792 io.pfrio_esize = sizeof(*addr); 1793 io.pfrio_size = *size; 1794 if (ioctl(dev, DIOCRGETADDRS, &io)) 1795 return (-1); 1796 *size = io.pfrio_size; 1797 return (0); 1798 } 1799