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