1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2021 Rubicon Communications, LLC (Netgate) 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * - Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * - Redistributions in binary form must reproduce the above 14 * copyright notice, this list of conditions and the following 15 * disclaimer in the documentation and/or other materials provided 16 * with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 #include <sys/cdefs.h> 35 36 #include <sys/ioctl.h> 37 #include <sys/nv.h> 38 #include <sys/queue.h> 39 #include <sys/types.h> 40 41 #include <net/if.h> 42 #include <net/pfvar.h> 43 #include <netinet/in.h> 44 45 #include <assert.h> 46 #include <err.h> 47 #include <errno.h> 48 #include <stdlib.h> 49 #include <string.h> 50 51 #include "libpfctl.h" 52 53 static void 54 pf_nvuint_8_array(const nvlist_t *nvl, const char *name, size_t maxelems, 55 u_int8_t *numbers, size_t *nelems) 56 { 57 const uint64_t *tmp; 58 size_t elems; 59 60 tmp = nvlist_get_number_array(nvl, name, &elems); 61 assert(elems <= maxelems); 62 63 for (size_t i = 0; i < elems; i++) 64 numbers[i] = tmp[i]; 65 66 if (nelems) 67 *nelems = elems; 68 } 69 70 static void 71 pf_nvuint_16_array(const nvlist_t *nvl, const char *name, size_t maxelems, 72 u_int16_t *numbers, size_t *nelems) 73 { 74 const uint64_t *tmp; 75 size_t elems; 76 77 tmp = nvlist_get_number_array(nvl, name, &elems); 78 assert(elems <= maxelems); 79 80 for (size_t i = 0; i < elems; i++) 81 numbers[i] = tmp[i]; 82 83 if (nelems) 84 *nelems = elems; 85 } 86 87 static void 88 pf_nvuint_32_array(const nvlist_t *nvl, const char *name, size_t maxelems, 89 u_int32_t *numbers, size_t *nelems) 90 { 91 const uint64_t *tmp; 92 size_t elems; 93 94 tmp = nvlist_get_number_array(nvl, name, &elems); 95 assert(elems <= maxelems); 96 97 for (size_t i = 0; i < elems; i++) 98 numbers[i] = tmp[i]; 99 100 if (nelems) 101 *nelems = elems; 102 } 103 104 static void 105 pf_nvuint_64_array(const nvlist_t *nvl, const char *name, size_t maxelems, 106 u_int64_t *numbers, size_t *nelems) 107 { 108 const uint64_t *tmp; 109 size_t elems; 110 111 tmp = nvlist_get_number_array(nvl, name, &elems); 112 assert(elems <= maxelems); 113 114 for (size_t i = 0; i < elems; i++) 115 numbers[i] = tmp[i]; 116 117 if (nelems) 118 *nelems = elems; 119 } 120 121 static void 122 pfctl_nv_add_addr(nvlist_t *nvparent, const char *name, 123 const struct pf_addr *addr) 124 { 125 nvlist_t *nvl = nvlist_create(0); 126 127 nvlist_add_binary(nvl, "addr", addr, sizeof(*addr)); 128 129 nvlist_add_nvlist(nvparent, name, nvl); 130 } 131 132 static void 133 pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *addr) 134 { 135 size_t len; 136 const void *data; 137 138 data = nvlist_get_binary(nvl, "addr", &len); 139 assert(len == sizeof(struct pf_addr)); 140 memcpy(addr, data, len); 141 } 142 143 static void 144 pfctl_nv_add_addr_wrap(nvlist_t *nvparent, const char *name, 145 const struct pf_addr_wrap *addr) 146 { 147 nvlist_t *nvl = nvlist_create(0); 148 149 nvlist_add_number(nvl, "type", addr->type); 150 nvlist_add_number(nvl, "iflags", addr->iflags); 151 nvlist_add_string(nvl, "ifname", addr->v.ifname); 152 nvlist_add_string(nvl, "tblname", addr->v.tblname); 153 pfctl_nv_add_addr(nvl, "addr", &addr->v.a.addr); 154 pfctl_nv_add_addr(nvl, "mask", &addr->v.a.mask); 155 156 nvlist_add_nvlist(nvparent, name, nvl); 157 } 158 159 static void 160 pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr) 161 { 162 addr->type = nvlist_get_number(nvl, "type"); 163 addr->iflags = nvlist_get_number(nvl, "iflags"); 164 strlcpy(addr->v.ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ); 165 strlcpy(addr->v.tblname, nvlist_get_string(nvl, "tblname"), 166 PF_TABLE_NAME_SIZE); 167 168 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &addr->v.a.addr); 169 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), &addr->v.a.mask); 170 } 171 172 static void 173 pfctl_nv_add_rule_addr(nvlist_t *nvparent, const char *name, 174 const struct pf_rule_addr *addr) 175 { 176 u_int64_t ports[2]; 177 nvlist_t *nvl = nvlist_create(0); 178 179 pfctl_nv_add_addr_wrap(nvl, "addr", &addr->addr); 180 ports[0] = addr->port[0]; 181 ports[1] = addr->port[1]; 182 nvlist_add_number_array(nvl, "port", ports, 2); 183 nvlist_add_number(nvl, "neg", addr->neg); 184 nvlist_add_number(nvl, "port_op", addr->port_op); 185 186 nvlist_add_nvlist(nvparent, name, nvl); 187 } 188 189 static void 190 pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr) 191 { 192 pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), &addr->addr); 193 194 pf_nvuint_16_array(nvl, "port", 2, addr->port, NULL); 195 addr->neg = nvlist_get_number(nvl, "neg"); 196 addr->port_op = nvlist_get_number(nvl, "port_op"); 197 } 198 199 static void 200 pfctl_nv_add_mape(nvlist_t *nvparent, const char *name, 201 const struct pf_mape_portset *mape) 202 { 203 nvlist_t *nvl = nvlist_create(0); 204 205 nvlist_add_number(nvl, "offset", mape->offset); 206 nvlist_add_number(nvl, "psidlen", mape->psidlen); 207 nvlist_add_number(nvl, "psid", mape->psid); 208 nvlist_add_nvlist(nvparent, name, nvl); 209 } 210 211 static void 212 pfctl_nv_add_pool(nvlist_t *nvparent, const char *name, 213 const struct pfctl_pool *pool) 214 { 215 u_int64_t ports[2]; 216 nvlist_t *nvl = nvlist_create(0); 217 218 nvlist_add_binary(nvl, "key", &pool->key, sizeof(pool->key)); 219 pfctl_nv_add_addr(nvl, "counter", &pool->counter); 220 nvlist_add_number(nvl, "tblidx", pool->tblidx); 221 222 ports[0] = pool->proxy_port[0]; 223 ports[1] = pool->proxy_port[1]; 224 nvlist_add_number_array(nvl, "proxy_port", ports, 2); 225 nvlist_add_number(nvl, "opts", pool->opts); 226 pfctl_nv_add_mape(nvl, "mape", &pool->mape); 227 228 nvlist_add_nvlist(nvparent, name, nvl); 229 } 230 231 static void 232 pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape) 233 { 234 mape->offset = nvlist_get_number(nvl, "offset"); 235 mape->psidlen = nvlist_get_number(nvl, "psidlen"); 236 mape->psid = nvlist_get_number(nvl, "psid"); 237 } 238 239 static void 240 pf_nvpool_to_pool(const nvlist_t *nvl, struct pfctl_pool *pool) 241 { 242 size_t len; 243 const void *data; 244 245 data = nvlist_get_binary(nvl, "key", &len); 246 assert(len == sizeof(pool->key)); 247 memcpy(&pool->key, data, len); 248 249 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), &pool->counter); 250 251 pool->tblidx = nvlist_get_number(nvl, "tblidx"); 252 pf_nvuint_16_array(nvl, "proxy_port", 2, pool->proxy_port, NULL); 253 pool->opts = nvlist_get_number(nvl, "opts"); 254 255 if (nvlist_exists_nvlist(nvl, "mape")) 256 pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), &pool->mape); 257 } 258 259 static void 260 pfctl_nv_add_uid(nvlist_t *nvparent, const char *name, 261 const struct pf_rule_uid *uid) 262 { 263 u_int64_t uids[2]; 264 nvlist_t *nvl = nvlist_create(0); 265 266 uids[0] = uid->uid[0]; 267 uids[1] = uid->uid[1]; 268 nvlist_add_number_array(nvl, "uid", uids, 2); 269 nvlist_add_number(nvl, "op", uid->op); 270 271 nvlist_add_nvlist(nvparent, name, nvl); 272 } 273 274 static void 275 pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid) 276 { 277 pf_nvuint_32_array(nvl, "uid", 2, uid->uid, NULL); 278 uid->op = nvlist_get_number(nvl, "op"); 279 } 280 281 static void 282 pfctl_nv_add_divert(nvlist_t *nvparent, const char *name, 283 const struct pfctl_rule *r) 284 { 285 nvlist_t *nvl = nvlist_create(0); 286 287 pfctl_nv_add_addr(nvl, "addr", &r->divert.addr); 288 nvlist_add_number(nvl, "port", r->divert.port); 289 290 nvlist_add_nvlist(nvparent, name, nvl); 291 } 292 293 static void 294 pf_nvdivert_to_divert(const nvlist_t *nvl, struct pfctl_rule *rule) 295 { 296 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &rule->divert.addr); 297 rule->divert.port = nvlist_get_number(nvl, "port"); 298 } 299 300 static void 301 pf_nvrule_to_rule(const nvlist_t *nvl, struct pfctl_rule *rule) 302 { 303 const uint64_t *skip; 304 size_t skipcount; 305 306 rule->nr = nvlist_get_number(nvl, "nr"); 307 308 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &rule->src); 309 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &rule->dst); 310 311 skip = nvlist_get_number_array(nvl, "skip", &skipcount); 312 assert(skip); 313 assert(skipcount == PF_SKIP_COUNT); 314 for (int i = 0; i < PF_SKIP_COUNT; i++) 315 rule->skip[i].nr = skip[i]; 316 317 strlcpy(rule->label, nvlist_get_string(nvl, "label"), PF_RULE_LABEL_SIZE); 318 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ); 319 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE); 320 strlcpy(rule->pqname, nvlist_get_string(nvl, "pqname"), PF_QNAME_SIZE); 321 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"), 322 PF_TAG_NAME_SIZE); 323 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"), 324 PF_TAG_NAME_SIZE); 325 326 strlcpy(rule->overload_tblname, nvlist_get_string(nvl, "overload_tblname"), 327 PF_TABLE_NAME_SIZE); 328 329 pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), &rule->rpool); 330 331 rule->evaluations = nvlist_get_number(nvl, "evaluations"); 332 pf_nvuint_64_array(nvl, "packets", 2, rule->packets, NULL); 333 pf_nvuint_64_array(nvl, "bytes", 2, rule->bytes, NULL); 334 335 rule->os_fingerprint = nvlist_get_number(nvl, "os_fingerprint"); 336 337 rule->rtableid = nvlist_get_number(nvl, "rtableid"); 338 pf_nvuint_32_array(nvl, "timeout", PFTM_MAX, rule->timeout, NULL); 339 rule->max_states = nvlist_get_number(nvl, "max_states"); 340 rule->max_src_nodes = nvlist_get_number(nvl, "max_src_nodes"); 341 rule->max_src_states = nvlist_get_number(nvl, "max_src_states"); 342 rule->max_src_conn = nvlist_get_number(nvl, "max_src_conn"); 343 rule->max_src_conn_rate.limit = 344 nvlist_get_number(nvl, "max_src_conn_rate.limit"); 345 rule->max_src_conn_rate.seconds = 346 nvlist_get_number(nvl, "max_src_conn_rate.seconds"); 347 rule->qid = nvlist_get_number(nvl, "qid"); 348 rule->pqid = nvlist_get_number(nvl, "pqid"); 349 rule->prob = nvlist_get_number(nvl, "prob"); 350 rule->cuid = nvlist_get_number(nvl, "cuid"); 351 rule->cpid = nvlist_get_number(nvl, "cpid"); 352 353 rule->return_icmp = nvlist_get_number(nvl, "return_icmp"); 354 rule->return_icmp6 = nvlist_get_number(nvl, "return_icmp6"); 355 rule->max_mss = nvlist_get_number(nvl, "max_mss"); 356 rule->scrub_flags = nvlist_get_number(nvl, "scrub_flags"); 357 358 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), &rule->uid); 359 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "gid"), 360 (struct pf_rule_uid *)&rule->gid); 361 362 rule->rule_flag = nvlist_get_number(nvl, "rule_flag"); 363 rule->action = nvlist_get_number(nvl, "action"); 364 rule->direction = nvlist_get_number(nvl, "direction"); 365 rule->log = nvlist_get_number(nvl, "log"); 366 rule->logif = nvlist_get_number(nvl, "logif"); 367 rule->quick = nvlist_get_number(nvl, "quick"); 368 rule->ifnot = nvlist_get_number(nvl, "ifnot"); 369 rule->match_tag_not = nvlist_get_number(nvl, "match_tag_not"); 370 rule->natpass = nvlist_get_number(nvl, "natpass"); 371 372 rule->keep_state = nvlist_get_number(nvl, "keep_state"); 373 rule->af = nvlist_get_number(nvl, "af"); 374 rule->proto = nvlist_get_number(nvl, "proto"); 375 rule->type = nvlist_get_number(nvl, "type"); 376 rule->code = nvlist_get_number(nvl, "code"); 377 rule->flags = nvlist_get_number(nvl, "flags"); 378 rule->flagset = nvlist_get_number(nvl, "flagset"); 379 rule->min_ttl = nvlist_get_number(nvl, "min_ttl"); 380 rule->allow_opts = nvlist_get_number(nvl, "allow_opts"); 381 rule->rt = nvlist_get_number(nvl, "rt"); 382 rule->return_ttl = nvlist_get_number(nvl, "return_ttl"); 383 rule->tos = nvlist_get_number(nvl, "tos"); 384 rule->set_tos = nvlist_get_number(nvl, "set_tos"); 385 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative"); 386 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard"); 387 388 rule->flush = nvlist_get_number(nvl, "flush"); 389 rule->prio = nvlist_get_number(nvl, "prio"); 390 pf_nvuint_8_array(nvl, "set_prio", 2, rule->set_prio, NULL); 391 392 pf_nvdivert_to_divert(nvlist_get_nvlist(nvl, "divert"), rule); 393 394 rule->states_cur = nvlist_get_number(nvl, "states_cur"); 395 rule->states_tot = nvlist_get_number(nvl, "states_tot"); 396 rule->src_nodes = nvlist_get_number(nvl, "src_nodes"); 397 } 398 399 int 400 pfctl_add_rule(int dev, const struct pfctl_rule *r, const char *anchor, 401 const char *anchor_call, u_int32_t ticket, u_int32_t pool_ticket) 402 { 403 struct pfioc_nv nv; 404 u_int64_t timeouts[PFTM_MAX]; 405 u_int64_t set_prio[2]; 406 nvlist_t *nvl, *nvlr; 407 int ret; 408 409 nvl = nvlist_create(0); 410 nvlr = nvlist_create(0); 411 412 nvlist_add_number(nvl, "ticket", ticket); 413 nvlist_add_number(nvl, "pool_ticket", pool_ticket); 414 nvlist_add_string(nvl, "anchor", anchor); 415 nvlist_add_string(nvl, "anchor_call", anchor_call); 416 417 nvlist_add_number(nvlr, "nr", r->nr); 418 pfctl_nv_add_rule_addr(nvlr, "src", &r->src); 419 pfctl_nv_add_rule_addr(nvlr, "dst", &r->dst); 420 421 nvlist_add_string(nvlr, "label", r->label); 422 nvlist_add_string(nvlr, "ifname", r->ifname); 423 nvlist_add_string(nvlr, "qname", r->qname); 424 nvlist_add_string(nvlr, "pqname", r->pqname); 425 nvlist_add_string(nvlr, "tagname", r->tagname); 426 nvlist_add_string(nvlr, "match_tagname", r->match_tagname); 427 nvlist_add_string(nvlr, "overload_tblname", r->overload_tblname); 428 429 pfctl_nv_add_pool(nvlr, "rpool", &r->rpool); 430 431 nvlist_add_number(nvlr, "os_fingerprint", r->os_fingerprint); 432 433 nvlist_add_number(nvlr, "rtableid", r->rtableid); 434 for (int i = 0; i < PFTM_MAX; i++) 435 timeouts[i] = r->timeout[i]; 436 nvlist_add_number_array(nvlr, "timeout", timeouts, PFTM_MAX); 437 nvlist_add_number(nvlr, "max_states", r->max_states); 438 nvlist_add_number(nvlr, "max_src_nodes", r->max_src_nodes); 439 nvlist_add_number(nvlr, "max_src_states", r->max_src_states); 440 nvlist_add_number(nvlr, "max_src_conn", r->max_src_conn); 441 nvlist_add_number(nvlr, "max_src_conn_rate.limit", 442 r->max_src_conn_rate.limit); 443 nvlist_add_number(nvlr, "max_src_conn_rate.seconds", 444 r->max_src_conn_rate.seconds); 445 nvlist_add_number(nvlr, "prob", r->prob); 446 nvlist_add_number(nvlr, "cuid", r->cuid); 447 nvlist_add_number(nvlr, "cpid", r->cpid); 448 449 nvlist_add_number(nvlr, "return_icmp", r->return_icmp); 450 nvlist_add_number(nvlr, "return_icmp6", r->return_icmp6); 451 452 nvlist_add_number(nvlr, "max_mss", r->max_mss); 453 nvlist_add_number(nvlr, "scrub_flags", r->scrub_flags); 454 455 pfctl_nv_add_uid(nvlr, "uid", &r->uid); 456 pfctl_nv_add_uid(nvlr, "gid", (const struct pf_rule_uid *)&r->gid); 457 458 nvlist_add_number(nvlr, "rule_flag", r->rule_flag); 459 nvlist_add_number(nvlr, "action", r->action); 460 nvlist_add_number(nvlr, "direction", r->direction); 461 nvlist_add_number(nvlr, "log", r->log); 462 nvlist_add_number(nvlr, "logif", r->logif); 463 nvlist_add_number(nvlr, "quick", r->quick); 464 nvlist_add_number(nvlr, "ifnot", r->ifnot); 465 nvlist_add_number(nvlr, "match_tag_not", r->match_tag_not); 466 nvlist_add_number(nvlr, "natpass", r->natpass); 467 468 nvlist_add_number(nvlr, "keep_state", r->keep_state); 469 nvlist_add_number(nvlr, "af", r->af); 470 nvlist_add_number(nvlr, "proto", r->proto); 471 nvlist_add_number(nvlr, "type", r->type); 472 nvlist_add_number(nvlr, "code", r->code); 473 nvlist_add_number(nvlr, "flags", r->flags); 474 nvlist_add_number(nvlr, "flagset", r->flagset); 475 nvlist_add_number(nvlr, "min_ttl", r->min_ttl); 476 nvlist_add_number(nvlr, "allow_opts", r->allow_opts); 477 nvlist_add_number(nvlr, "rt", r->rt); 478 nvlist_add_number(nvlr, "return_ttl", r->return_ttl); 479 nvlist_add_number(nvlr, "tos", r->tos); 480 nvlist_add_number(nvlr, "set_tos", r->set_tos); 481 nvlist_add_number(nvlr, "anchor_relative", r->anchor_relative); 482 nvlist_add_number(nvlr, "anchor_wildcard", r->anchor_wildcard); 483 484 nvlist_add_number(nvlr, "flush", r->flush); 485 486 nvlist_add_number(nvlr, "prio", r->prio); 487 set_prio[0] = r->set_prio[0]; 488 set_prio[1] = r->set_prio[1]; 489 nvlist_add_number_array(nvlr, "set_prio", set_prio, 2); 490 491 pfctl_nv_add_divert(nvlr, "divert", r); 492 493 nvlist_add_nvlist(nvl, "rule", nvlr); 494 495 /* Now do the call. */ 496 nv.data = nvlist_pack(nvl, &nv.len); 497 nv.size = nv.len; 498 499 ret = ioctl(dev, DIOCADDRULENV, &nv); 500 501 free(nv.data); 502 nvlist_destroy(nvl); 503 504 return (ret); 505 } 506 507 int 508 pfctl_get_rule(int dev, u_int32_t nr, u_int32_t ticket, const char *anchor, 509 u_int32_t ruleset, struct pfctl_rule *rule, char *anchor_call) 510 { 511 return (pfctl_get_clear_rule(dev, nr, ticket, anchor, ruleset, rule, 512 anchor_call, false)); 513 } 514 515 int pfctl_get_clear_rule(int dev, u_int32_t nr, u_int32_t ticket, 516 const char *anchor, u_int32_t ruleset, struct pfctl_rule *rule, 517 char *anchor_call, bool clear) 518 { 519 struct pfioc_nv nv; 520 nvlist_t *nvl; 521 void *nvlpacked; 522 int ret; 523 524 nvl = nvlist_create(0); 525 if (nvl == 0) 526 return (ENOMEM); 527 528 nvlist_add_number(nvl, "nr", nr); 529 nvlist_add_number(nvl, "ticket", ticket); 530 nvlist_add_string(nvl, "anchor", anchor); 531 nvlist_add_number(nvl, "ruleset", ruleset); 532 533 if (clear) 534 nvlist_add_bool(nvl, "clear_counter", true); 535 536 nvlpacked = nvlist_pack(nvl, &nv.len); 537 if (nvlpacked == NULL) { 538 nvlist_destroy(nvl); 539 return (ENOMEM); 540 } 541 nv.data = malloc(8182); 542 nv.size = 8192; 543 assert(nv.len <= nv.size); 544 memcpy(nv.data, nvlpacked, nv.len); 545 nvlist_destroy(nvl); 546 nvl = NULL; 547 free(nvlpacked); 548 549 ret = ioctl(dev, DIOCGETRULENV, &nv); 550 if (ret != 0) { 551 free(nv.data); 552 return (ret); 553 } 554 555 nvl = nvlist_unpack(nv.data, nv.len, 0); 556 if (nvl == NULL) { 557 free(nv.data); 558 return (EIO); 559 } 560 561 pf_nvrule_to_rule(nvlist_get_nvlist(nvl, "rule"), rule); 562 563 if (anchor_call) 564 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"), 565 MAXPATHLEN); 566 567 free(nv.data); 568 nvlist_destroy(nvl); 569 570 return (0); 571 } 572 573 int 574 pfctl_set_keepcounters(int dev, bool keep) 575 { 576 struct pfioc_nv nv; 577 nvlist_t *nvl; 578 int ret; 579 580 nvl = nvlist_create(0); 581 582 nvlist_add_bool(nvl, "keep_counters", keep); 583 584 nv.data = nvlist_pack(nvl, &nv.len); 585 nv.size = nv.len; 586 587 nvlist_destroy(nvl); 588 589 ret = ioctl(dev, DIOCKEEPCOUNTERS, &nv); 590 591 free(nv.data); 592 return (ret); 593 } 594