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 <fcntl.h> 54#include <stdlib.h> 55#include <string.h> 56 57#include "libpfctl.h" 58 59struct pfctl_handle { 60 int fd; 61 struct snl_state ss; 62}; 63 64const char* PFCTL_SYNCOOKIES_MODE_NAMES[] = { 65 "never", 66 "always", 67 "adaptive" 68}; 69 70static int _pfctl_clear_states(int , const struct pfctl_kill *, 71 unsigned int *, uint64_t); 72 73struct pfctl_handle * 74pfctl_open(const char *pf_device) 75{ 76 struct pfctl_handle *h; 77 78 h = calloc(1, sizeof(struct pfctl_handle)); 79 h->fd = -1; 80 81 h->fd = open(pf_device, O_RDWR); 82 if (h->fd < 0) 83 goto error; 84 85 if (!snl_init(&h->ss, NETLINK_GENERIC)) 86 goto error; 87 88 return (h); 89error: 90 close(h->fd); 91 snl_free(&h->ss); 92 free(h); 93 94 return (NULL); 95} 96 97void 98pfctl_close(struct pfctl_handle *h) 99{ 100 close(h->fd); 101 snl_free(&h->ss); 102 free(h); 103} 104 105int 106pfctl_fd(struct pfctl_handle *h) 107{ 108 return (h->fd); 109} 110 111static int 112pfctl_do_netlink_cmd(struct pfctl_handle *h, uint cmd) 113{ 114 struct snl_errmsg_data e = {}; 115 struct snl_writer nw; 116 struct nlmsghdr *hdr; 117 uint32_t seq_id; 118 int family_id; 119 120 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 121 if (family_id == 0) 122 return (ENOTSUP); 123 124 snl_init_writer(&h->ss, &nw); 125 hdr = snl_create_genl_msg_request(&nw, family_id, cmd); 126 127 hdr = snl_finalize_msg(&nw); 128 if (hdr == NULL) 129 return (ENOMEM); 130 seq_id = hdr->nlmsg_seq; 131 132 snl_send_message(&h->ss, hdr); 133 134 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 135 } 136 137 return (e.error); 138} 139 140static int 141pfctl_do_ioctl(int dev, uint cmd, size_t size, nvlist_t **nvl) 142{ 143 struct pfioc_nv nv; 144 void *data; 145 size_t nvlen; 146 int ret; 147 148 data = nvlist_pack(*nvl, &nvlen); 149 if (nvlen > size) 150 size = nvlen; 151 152retry: 153 nv.data = malloc(size); 154 if (nv.data == NULL) { 155 ret = ENOMEM; 156 goto out; 157 } 158 159 memcpy(nv.data, data, nvlen); 160 161 nv.len = nvlen; 162 nv.size = size; 163 164 ret = ioctl(dev, cmd, &nv); 165 if (ret == -1 && errno == ENOSPC) { 166 size *= 2; 167 free(nv.data); 168 goto retry; 169 } 170 171 nvlist_destroy(*nvl); 172 *nvl = NULL; 173 174 if (ret == 0) { 175 *nvl = nvlist_unpack(nv.data, nv.len, 0); 176 if (*nvl == NULL) { 177 ret = EIO; 178 goto out; 179 } 180 } else { 181 ret = errno; 182 } 183 184out: 185 free(data); 186 free(nv.data); 187 188 return (ret); 189} 190 191static void 192pf_nvuint_8_array(const nvlist_t *nvl, const char *name, size_t maxelems, 193 uint8_t *numbers, size_t *nelems) 194{ 195 const uint64_t *tmp; 196 size_t elems; 197 198 tmp = nvlist_get_number_array(nvl, name, &elems); 199 assert(elems <= maxelems); 200 201 for (size_t i = 0; i < elems; i++) 202 numbers[i] = tmp[i]; 203 204 if (nelems) 205 *nelems = elems; 206} 207 208static void 209pf_nvuint_16_array(const nvlist_t *nvl, const char *name, size_t maxelems, 210 uint16_t *numbers, size_t *nelems) 211{ 212 const uint64_t *tmp; 213 size_t elems; 214 215 tmp = nvlist_get_number_array(nvl, name, &elems); 216 assert(elems <= maxelems); 217 218 for (size_t i = 0; i < elems; i++) 219 numbers[i] = tmp[i]; 220 221 if (nelems) 222 *nelems = elems; 223} 224 225static void 226pf_nvuint_32_array(const nvlist_t *nvl, const char *name, size_t maxelems, 227 uint32_t *numbers, size_t *nelems) 228{ 229 const uint64_t *tmp; 230 size_t elems; 231 232 tmp = nvlist_get_number_array(nvl, name, &elems); 233 234 for (size_t i = 0; i < elems && i < maxelems; i++) 235 numbers[i] = tmp[i]; 236 237 if (nelems) 238 *nelems = elems; 239} 240 241static void 242pf_nvuint_64_array(const nvlist_t *nvl, const char *name, size_t maxelems, 243 uint64_t *numbers, size_t *nelems) 244{ 245 const uint64_t *tmp; 246 size_t elems; 247 248 tmp = nvlist_get_number_array(nvl, name, &elems); 249 assert(elems <= maxelems); 250 251 for (size_t i = 0; i < elems; i++) 252 numbers[i] = tmp[i]; 253 254 if (nelems) 255 *nelems = elems; 256} 257 258int 259pfctl_startstop(struct pfctl_handle *h, int start) 260{ 261 return (pfctl_do_netlink_cmd(h, start ? PFNL_CMD_START : PFNL_CMD_STOP)); 262} 263 264static void 265_pfctl_get_status_counters(const nvlist_t *nvl, 266 struct pfctl_status_counters *counters) 267{ 268 const uint64_t *ids, *counts; 269 const char *const *names; 270 size_t id_len, counter_len, names_len; 271 272 ids = nvlist_get_number_array(nvl, "ids", &id_len); 273 counts = nvlist_get_number_array(nvl, "counters", &counter_len); 274 names = nvlist_get_string_array(nvl, "names", &names_len); 275 assert(id_len == counter_len); 276 assert(counter_len == names_len); 277 278 TAILQ_INIT(counters); 279 280 for (size_t i = 0; i < id_len; i++) { 281 struct pfctl_status_counter *c; 282 283 c = malloc(sizeof(*c)); 284 if (c == NULL) 285 continue; 286 287 c->id = ids[i]; 288 c->counter = counts[i]; 289 c->name = strdup(names[i]); 290 291 TAILQ_INSERT_TAIL(counters, c, entry); 292 } 293} 294 295#define _OUT(_field) offsetof(struct pfctl_status_counter, _field) 296static const struct snl_attr_parser ap_counter[] = { 297 { .type = PF_C_COUNTER, .off = _OUT(counter), .cb = snl_attr_get_uint64 }, 298 { .type = PF_C_NAME, .off = _OUT(name), .cb = snl_attr_get_string }, 299 { .type = PF_C_ID, .off = _OUT(id), .cb = snl_attr_get_uint32 }, 300}; 301SNL_DECLARE_ATTR_PARSER(counter_parser, ap_counter); 302#undef _OUT 303 304static bool 305snl_attr_get_counters(struct snl_state *ss, struct nlattr *nla, 306 const void *arg __unused, void *target) 307{ 308 struct pfctl_status_counter counter = {}; 309 struct pfctl_status_counter *c; 310 bool error; 311 312 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &counter_parser, &counter); 313 if (! error) 314 return (error); 315 316 c = malloc(sizeof(*c)); 317 if (c == NULL) 318 return (false); 319 320 c->id = counter.id; 321 c->counter = counter.counter; 322 c->name = strdup(counter.name); 323 324 TAILQ_INSERT_TAIL((struct pfctl_status_counters *)target, c, entry); 325 326 return (error); 327} 328 329struct snl_uint64_array { 330 uint64_t *array; 331 size_t count; 332 size_t max; 333}; 334static bool 335snl_attr_get_uint64_element(struct snl_state *ss, struct nlattr *nla, 336 const void *arg, void *target) 337{ 338 bool error; 339 uint64_t value; 340 struct snl_uint64_array *t = (struct snl_uint64_array *)target; 341 342 if (t->count >= t->max) 343 return (false); 344 345 error = snl_attr_get_uint64(ss, nla, arg, &value); 346 if (! error) 347 return (error); 348 349 t->array[t->count++] = value; 350 351 return (true); 352} 353 354static const struct snl_attr_parser ap_array[] = { 355 { .cb = snl_attr_get_uint64_element }, 356}; 357SNL_DECLARE_ATTR_PARSER(array_parser, ap_array); 358static bool 359snl_attr_get_uint64_array(struct snl_state *ss, struct nlattr *nla, 360 const void *arg, void *target) 361{ 362 struct snl_uint64_array a = { 363 .array = target, 364 .count = 0, 365 .max = (size_t)arg, 366 }; 367 bool error; 368 369 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &array_parser, &a); 370 if (! error) 371 return (error); 372 373 return (true); 374} 375 376#define _OUT(_field) offsetof(struct pfctl_status, _field) 377static const struct snl_attr_parser ap_getstatus[] = { 378 { .type = PF_GS_IFNAME, .off = _OUT(ifname), .arg_u32 = IFNAMSIZ, .cb = snl_attr_copy_string }, 379 { .type = PF_GS_RUNNING, .off = _OUT(running), .cb = snl_attr_get_bool }, 380 { .type = PF_GS_SINCE, .off = _OUT(since), .cb = snl_attr_get_uint32 }, 381 { .type = PF_GS_DEBUG, .off = _OUT(debug), .cb = snl_attr_get_uint32 }, 382 { .type = PF_GS_HOSTID, .off = _OUT(hostid), .cb = snl_attr_get_uint32 }, 383 { .type = PF_GS_STATES, .off = _OUT(states), .cb = snl_attr_get_uint32 }, 384 { .type = PF_GS_SRC_NODES, .off = _OUT(src_nodes), .cb = snl_attr_get_uint32 }, 385 { .type = PF_GS_REASSEMBLE, .off = _OUT(reass), .cb = snl_attr_get_uint32 }, 386 { .type = PF_GS_SYNCOOKIES_ACTIVE, .off = _OUT(syncookies_active), .cb = snl_attr_get_uint32 }, 387 { .type = PF_GS_COUNTERS, .off = _OUT(counters), .cb = snl_attr_get_counters }, 388 { .type = PF_GS_LCOUNTERS, .off = _OUT(lcounters), .cb = snl_attr_get_counters }, 389 { .type = PF_GS_FCOUNTERS, .off = _OUT(fcounters), .cb = snl_attr_get_counters }, 390 { .type = PF_GS_SCOUNTERS, .off = _OUT(scounters), .cb = snl_attr_get_counters }, 391 { .type = PF_GS_CHKSUM, .off = _OUT(pf_chksum), .arg_u32 = PF_MD5_DIGEST_LENGTH, .cb = snl_attr_get_bytes }, 392 { .type = PF_GS_BCOUNTERS, .off = _OUT(bcounters), .arg_u32 = 2 * 2, .cb = snl_attr_get_uint64_array }, 393 { .type = PF_GS_PCOUNTERS, .off = _OUT(pcounters), .arg_u32 = 2 * 2 * 2, .cb = snl_attr_get_uint64_array }, 394}; 395static struct snl_field_parser fp_getstatus[] = {}; 396SNL_DECLARE_PARSER(getstatus_parser, struct genlmsghdr, fp_getstatus, ap_getstatus); 397#undef _OUT 398 399struct pfctl_status * 400pfctl_get_status_h(struct pfctl_handle *h __unused) 401{ 402 struct pfctl_status *status; 403 struct snl_errmsg_data e = {}; 404 struct nlmsghdr *hdr; 405 struct snl_writer nw; 406 uint32_t seq_id; 407 int family_id; 408 409 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 410 if (family_id == 0) 411 return (NULL); 412 413 snl_init_writer(&h->ss, &nw); 414 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_STATUS); 415 hdr->nlmsg_flags |= NLM_F_DUMP; 416 417 hdr = snl_finalize_msg(&nw); 418 if (hdr == NULL) { 419 return (NULL); 420 } 421 422 seq_id = hdr->nlmsg_seq; 423 if (! snl_send_message(&h->ss, hdr)) 424 return (NULL); 425 426 status = calloc(1, sizeof(*status)); 427 if (status == NULL) 428 return (NULL); 429 TAILQ_INIT(&status->counters); 430 TAILQ_INIT(&status->lcounters); 431 TAILQ_INIT(&status->fcounters); 432 TAILQ_INIT(&status->scounters); 433 434 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 435 if (! snl_parse_nlmsg(&h->ss, hdr, &getstatus_parser, status)) 436 continue; 437 } 438 439 return (status); 440} 441 442struct pfctl_status * 443pfctl_get_status(int dev) 444{ 445 struct pfctl_status *status; 446 nvlist_t *nvl; 447 size_t len; 448 const void *chksum; 449 450 status = calloc(1, sizeof(*status)); 451 if (status == NULL) 452 return (NULL); 453 454 nvl = nvlist_create(0); 455 456 if (pfctl_do_ioctl(dev, DIOCGETSTATUSNV, 4096, &nvl)) { 457 nvlist_destroy(nvl); 458 free(status); 459 return (NULL); 460 } 461 462 status->running = nvlist_get_bool(nvl, "running"); 463 status->since = nvlist_get_number(nvl, "since"); 464 status->debug = nvlist_get_number(nvl, "debug"); 465 status->hostid = ntohl(nvlist_get_number(nvl, "hostid")); 466 status->states = nvlist_get_number(nvl, "states"); 467 status->src_nodes = nvlist_get_number(nvl, "src_nodes"); 468 status->syncookies_active = nvlist_get_bool(nvl, "syncookies_active"); 469 status->reass = nvlist_get_number(nvl, "reass"); 470 471 strlcpy(status->ifname, nvlist_get_string(nvl, "ifname"), 472 IFNAMSIZ); 473 chksum = nvlist_get_binary(nvl, "chksum", &len); 474 assert(len == PF_MD5_DIGEST_LENGTH); 475 memcpy(status->pf_chksum, chksum, len); 476 477 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "counters"), 478 &status->counters); 479 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "lcounters"), 480 &status->lcounters); 481 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "fcounters"), 482 &status->fcounters); 483 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "scounters"), 484 &status->scounters); 485 486 pf_nvuint_64_array(nvl, "pcounters", 2 * 2 * 2, 487 (uint64_t *)status->pcounters, NULL); 488 pf_nvuint_64_array(nvl, "bcounters", 2 * 2, 489 (uint64_t *)status->bcounters, NULL); 490 491 nvlist_destroy(nvl); 492 493 return (status); 494} 495int 496pfctl_clear_status(struct pfctl_handle *h) 497{ 498 return (pfctl_do_netlink_cmd(h, PFNL_CMD_CLEAR_STATUS)); 499} 500 501static uint64_t 502_pfctl_status_counter(struct pfctl_status_counters *counters, uint64_t id) 503{ 504 struct pfctl_status_counter *c; 505 506 TAILQ_FOREACH(c, counters, entry) { 507 if (c->id == id) 508 return (c->counter); 509 } 510 511 return (0); 512} 513 514uint64_t 515pfctl_status_counter(struct pfctl_status *status, int id) 516{ 517 return (_pfctl_status_counter(&status->counters, id)); 518} 519 520uint64_t 521pfctl_status_lcounter(struct pfctl_status *status, int id) 522{ 523 return (_pfctl_status_counter(&status->lcounters, id)); 524} 525 526uint64_t 527pfctl_status_fcounter(struct pfctl_status *status, int id) 528{ 529 return (_pfctl_status_counter(&status->fcounters, id)); 530} 531 532uint64_t 533pfctl_status_scounter(struct pfctl_status *status, int id) 534{ 535 return (_pfctl_status_counter(&status->scounters, id)); 536} 537 538void 539pfctl_free_status(struct pfctl_status *status) 540{ 541 struct pfctl_status_counter *c, *tmp; 542 543 if (status == NULL) 544 return; 545 546 TAILQ_FOREACH_SAFE(c, &status->counters, entry, tmp) { 547 free(c->name); 548 free(c); 549 } 550 TAILQ_FOREACH_SAFE(c, &status->lcounters, entry, tmp) { 551 free(c->name); 552 free(c); 553 } 554 TAILQ_FOREACH_SAFE(c, &status->fcounters, entry, tmp) { 555 free(c->name); 556 free(c); 557 } 558 TAILQ_FOREACH_SAFE(c, &status->scounters, entry, tmp) { 559 free(c->name); 560 free(c); 561 } 562 563 free(status); 564} 565 566static void 567pfctl_nv_add_addr(nvlist_t *nvparent, const char *name, 568 const struct pf_addr *addr) 569{ 570 nvlist_t *nvl = nvlist_create(0); 571 572 nvlist_add_binary(nvl, "addr", addr, sizeof(*addr)); 573 574 nvlist_add_nvlist(nvparent, name, nvl); 575 nvlist_destroy(nvl); 576} 577 578static void 579pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *addr) 580{ 581 size_t len; 582 const void *data; 583 584 data = nvlist_get_binary(nvl, "addr", &len); 585 assert(len == sizeof(struct pf_addr)); 586 memcpy(addr, data, len); 587} 588 589static void 590pfctl_nv_add_addr_wrap(nvlist_t *nvparent, const char *name, 591 const struct pf_addr_wrap *addr) 592{ 593 nvlist_t *nvl = nvlist_create(0); 594 595 nvlist_add_number(nvl, "type", addr->type); 596 nvlist_add_number(nvl, "iflags", addr->iflags); 597 if (addr->type == PF_ADDR_DYNIFTL) 598 nvlist_add_string(nvl, "ifname", addr->v.ifname); 599 if (addr->type == PF_ADDR_TABLE) 600 nvlist_add_string(nvl, "tblname", addr->v.tblname); 601 pfctl_nv_add_addr(nvl, "addr", &addr->v.a.addr); 602 pfctl_nv_add_addr(nvl, "mask", &addr->v.a.mask); 603 604 nvlist_add_nvlist(nvparent, name, nvl); 605 nvlist_destroy(nvl); 606} 607 608static void 609pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr) 610{ 611 bzero(addr, sizeof(*addr)); 612 613 addr->type = nvlist_get_number(nvl, "type"); 614 addr->iflags = nvlist_get_number(nvl, "iflags"); 615 if (addr->type == PF_ADDR_DYNIFTL) { 616 strlcpy(addr->v.ifname, nvlist_get_string(nvl, "ifname"), 617 IFNAMSIZ); 618 addr->p.dyncnt = nvlist_get_number(nvl, "dyncnt"); 619 } 620 if (addr->type == PF_ADDR_TABLE) { 621 strlcpy(addr->v.tblname, nvlist_get_string(nvl, "tblname"), 622 PF_TABLE_NAME_SIZE); 623 addr->p.tblcnt = nvlist_get_number(nvl, "tblcnt"); 624 } 625 626 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &addr->v.a.addr); 627 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), &addr->v.a.mask); 628} 629 630static void 631pfctl_nv_add_rule_addr(nvlist_t *nvparent, const char *name, 632 const struct pf_rule_addr *addr) 633{ 634 uint64_t ports[2]; 635 nvlist_t *nvl = nvlist_create(0); 636 637 pfctl_nv_add_addr_wrap(nvl, "addr", &addr->addr); 638 ports[0] = addr->port[0]; 639 ports[1] = addr->port[1]; 640 nvlist_add_number_array(nvl, "port", ports, 2); 641 nvlist_add_number(nvl, "neg", addr->neg); 642 nvlist_add_number(nvl, "port_op", addr->port_op); 643 644 nvlist_add_nvlist(nvparent, name, nvl); 645 nvlist_destroy(nvl); 646} 647 648static void 649pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr) 650{ 651 pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), &addr->addr); 652 653 pf_nvuint_16_array(nvl, "port", 2, addr->port, NULL); 654 addr->neg = nvlist_get_number(nvl, "neg"); 655 addr->port_op = nvlist_get_number(nvl, "port_op"); 656} 657 658static void 659pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape) 660{ 661 mape->offset = nvlist_get_number(nvl, "offset"); 662 mape->psidlen = nvlist_get_number(nvl, "psidlen"); 663 mape->psid = nvlist_get_number(nvl, "psid"); 664} 665 666static void 667pf_nvpool_to_pool(const nvlist_t *nvl, struct pfctl_pool *pool) 668{ 669 size_t len; 670 const void *data; 671 672 data = nvlist_get_binary(nvl, "key", &len); 673 assert(len == sizeof(pool->key)); 674 memcpy(&pool->key, data, len); 675 676 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), &pool->counter); 677 678 pool->tblidx = nvlist_get_number(nvl, "tblidx"); 679 pf_nvuint_16_array(nvl, "proxy_port", 2, pool->proxy_port, NULL); 680 pool->opts = nvlist_get_number(nvl, "opts"); 681 682 if (nvlist_exists_nvlist(nvl, "mape")) 683 pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), &pool->mape); 684} 685 686static void 687pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid) 688{ 689 pf_nvuint_32_array(nvl, "uid", 2, uid->uid, NULL); 690 uid->op = nvlist_get_number(nvl, "op"); 691} 692 693static void 694pf_nvdivert_to_divert(const nvlist_t *nvl, struct pfctl_rule *rule) 695{ 696 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &rule->divert.addr); 697 rule->divert.port = nvlist_get_number(nvl, "port"); 698} 699 700static void 701pf_nvrule_to_rule(const nvlist_t *nvl, struct pfctl_rule *rule) 702{ 703 const uint64_t *skip; 704 const char *const *labels; 705 size_t skipcount, labelcount; 706 707 rule->nr = nvlist_get_number(nvl, "nr"); 708 709 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &rule->src); 710 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &rule->dst); 711 712 skip = nvlist_get_number_array(nvl, "skip", &skipcount); 713 assert(skip); 714 assert(skipcount == PF_SKIP_COUNT); 715 for (int i = 0; i < PF_SKIP_COUNT; i++) 716 rule->skip[i].nr = skip[i]; 717 718 labels = nvlist_get_string_array(nvl, "labels", &labelcount); 719 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT); 720 for (size_t i = 0; i < labelcount; i++) 721 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE); 722 rule->ridentifier = nvlist_get_number(nvl, "ridentifier"); 723 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ); 724 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE); 725 strlcpy(rule->pqname, nvlist_get_string(nvl, "pqname"), PF_QNAME_SIZE); 726 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"), 727 PF_TAG_NAME_SIZE); 728 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"), 729 PF_TAG_NAME_SIZE); 730 731 strlcpy(rule->overload_tblname, nvlist_get_string(nvl, "overload_tblname"), 732 PF_TABLE_NAME_SIZE); 733 734 pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), &rule->rpool); 735 736 rule->evaluations = nvlist_get_number(nvl, "evaluations"); 737 pf_nvuint_64_array(nvl, "packets", 2, rule->packets, NULL); 738 pf_nvuint_64_array(nvl, "bytes", 2, rule->bytes, NULL); 739 740 if (nvlist_exists_number(nvl, "timestamp")) { 741 rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp"); 742 } 743 744 rule->os_fingerprint = nvlist_get_number(nvl, "os_fingerprint"); 745 746 rule->rtableid = nvlist_get_number(nvl, "rtableid"); 747 pf_nvuint_32_array(nvl, "timeout", PFTM_MAX, rule->timeout, NULL); 748 rule->max_states = nvlist_get_number(nvl, "max_states"); 749 rule->max_src_nodes = nvlist_get_number(nvl, "max_src_nodes"); 750 rule->max_src_states = nvlist_get_number(nvl, "max_src_states"); 751 rule->max_src_conn = nvlist_get_number(nvl, "max_src_conn"); 752 rule->max_src_conn_rate.limit = 753 nvlist_get_number(nvl, "max_src_conn_rate.limit"); 754 rule->max_src_conn_rate.seconds = 755 nvlist_get_number(nvl, "max_src_conn_rate.seconds"); 756 rule->qid = nvlist_get_number(nvl, "qid"); 757 rule->pqid = nvlist_get_number(nvl, "pqid"); 758 rule->dnpipe = nvlist_get_number(nvl, "dnpipe"); 759 rule->dnrpipe = nvlist_get_number(nvl, "dnrpipe"); 760 rule->free_flags = nvlist_get_number(nvl, "dnflags"); 761 rule->prob = nvlist_get_number(nvl, "prob"); 762 rule->cuid = nvlist_get_number(nvl, "cuid"); 763 rule->cpid = nvlist_get_number(nvl, "cpid"); 764 765 rule->return_icmp = nvlist_get_number(nvl, "return_icmp"); 766 rule->return_icmp6 = nvlist_get_number(nvl, "return_icmp6"); 767 rule->max_mss = nvlist_get_number(nvl, "max_mss"); 768 rule->scrub_flags = nvlist_get_number(nvl, "scrub_flags"); 769 770 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), &rule->uid); 771 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "gid"), 772 (struct pf_rule_uid *)&rule->gid); 773 774 rule->rule_flag = nvlist_get_number(nvl, "rule_flag"); 775 rule->action = nvlist_get_number(nvl, "action"); 776 rule->direction = nvlist_get_number(nvl, "direction"); 777 rule->log = nvlist_get_number(nvl, "log"); 778 rule->logif = nvlist_get_number(nvl, "logif"); 779 rule->quick = nvlist_get_number(nvl, "quick"); 780 rule->ifnot = nvlist_get_number(nvl, "ifnot"); 781 rule->match_tag_not = nvlist_get_number(nvl, "match_tag_not"); 782 rule->natpass = nvlist_get_number(nvl, "natpass"); 783 784 rule->keep_state = nvlist_get_number(nvl, "keep_state"); 785 rule->af = nvlist_get_number(nvl, "af"); 786 rule->proto = nvlist_get_number(nvl, "proto"); 787 rule->type = nvlist_get_number(nvl, "type"); 788 rule->code = nvlist_get_number(nvl, "code"); 789 rule->flags = nvlist_get_number(nvl, "flags"); 790 rule->flagset = nvlist_get_number(nvl, "flagset"); 791 rule->min_ttl = nvlist_get_number(nvl, "min_ttl"); 792 rule->allow_opts = nvlist_get_number(nvl, "allow_opts"); 793 rule->rt = nvlist_get_number(nvl, "rt"); 794 rule->return_ttl = nvlist_get_number(nvl, "return_ttl"); 795 rule->tos = nvlist_get_number(nvl, "tos"); 796 rule->set_tos = nvlist_get_number(nvl, "set_tos"); 797 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative"); 798 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard"); 799 800 rule->flush = nvlist_get_number(nvl, "flush"); 801 rule->prio = nvlist_get_number(nvl, "prio"); 802 pf_nvuint_8_array(nvl, "set_prio", 2, rule->set_prio, NULL); 803 804 pf_nvdivert_to_divert(nvlist_get_nvlist(nvl, "divert"), rule); 805 806 rule->states_cur = nvlist_get_number(nvl, "states_cur"); 807 rule->states_tot = nvlist_get_number(nvl, "states_tot"); 808 rule->src_nodes = nvlist_get_number(nvl, "src_nodes"); 809} 810 811static void 812pfctl_nveth_addr_to_eth_addr(const nvlist_t *nvl, struct pfctl_eth_addr *addr) 813{ 814 static const u_int8_t EMPTY_MAC[ETHER_ADDR_LEN] = { 0 }; 815 size_t len; 816 const void *data; 817 818 data = nvlist_get_binary(nvl, "addr", &len); 819 assert(len == sizeof(addr->addr)); 820 memcpy(addr->addr, data, sizeof(addr->addr)); 821 822 data = nvlist_get_binary(nvl, "mask", &len); 823 assert(len == sizeof(addr->mask)); 824 memcpy(addr->mask, data, sizeof(addr->mask)); 825 826 addr->neg = nvlist_get_bool(nvl, "neg"); 827 828 /* To make checks for 'is this address set?' easier. */ 829 addr->isset = memcmp(addr->addr, EMPTY_MAC, ETHER_ADDR_LEN) != 0; 830} 831 832static nvlist_t * 833pfctl_eth_addr_to_nveth_addr(const struct pfctl_eth_addr *addr) 834{ 835 nvlist_t *nvl; 836 837 nvl = nvlist_create(0); 838 if (nvl == NULL) 839 return (NULL); 840 841 nvlist_add_bool(nvl, "neg", addr->neg); 842 nvlist_add_binary(nvl, "addr", &addr->addr, ETHER_ADDR_LEN); 843 nvlist_add_binary(nvl, "mask", &addr->mask, ETHER_ADDR_LEN); 844 845 return (nvl); 846} 847 848static void 849pfctl_nveth_rule_to_eth_rule(const nvlist_t *nvl, struct pfctl_eth_rule *rule) 850{ 851 const char *const *labels; 852 size_t labelcount, i; 853 854 rule->nr = nvlist_get_number(nvl, "nr"); 855 rule->quick = nvlist_get_bool(nvl, "quick"); 856 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ); 857 rule->ifnot = nvlist_get_bool(nvl, "ifnot"); 858 rule->direction = nvlist_get_number(nvl, "direction"); 859 rule->proto = nvlist_get_number(nvl, "proto"); 860 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"), 861 PF_TAG_NAME_SIZE); 862 rule->match_tag = nvlist_get_number(nvl, "match_tag"); 863 rule->match_tag_not = nvlist_get_bool(nvl, "match_tag_not"); 864 865 labels = nvlist_get_string_array(nvl, "labels", &labelcount); 866 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT); 867 for (i = 0; i < labelcount; i++) 868 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE); 869 rule->ridentifier = nvlist_get_number(nvl, "ridentifier"); 870 871 pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "src"), 872 &rule->src); 873 pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "dst"), 874 &rule->dst); 875 876 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipsrc"), 877 &rule->ipsrc); 878 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipdst"), 879 &rule->ipdst); 880 881 rule->evaluations = nvlist_get_number(nvl, "evaluations"); 882 rule->packets[0] = nvlist_get_number(nvl, "packets-in"); 883 rule->packets[1] = nvlist_get_number(nvl, "packets-out"); 884 rule->bytes[0] = nvlist_get_number(nvl, "bytes-in"); 885 rule->bytes[1] = nvlist_get_number(nvl, "bytes-out"); 886 887 if (nvlist_exists_number(nvl, "timestamp")) { 888 rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp"); 889 } 890 891 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE); 892 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"), 893 PF_TAG_NAME_SIZE); 894 895 rule->dnpipe = nvlist_get_number(nvl, "dnpipe"); 896 rule->dnflags = nvlist_get_number(nvl, "dnflags"); 897 898 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative"); 899 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard"); 900 901 strlcpy(rule->bridge_to, nvlist_get_string(nvl, "bridge_to"), 902 IFNAMSIZ); 903 904 rule->action = nvlist_get_number(nvl, "action"); 905} 906 907int 908pfctl_get_eth_rulesets_info(int dev, struct pfctl_eth_rulesets_info *ri, 909 const char *path) 910{ 911 nvlist_t *nvl; 912 int ret; 913 914 bzero(ri, sizeof(*ri)); 915 916 nvl = nvlist_create(0); 917 nvlist_add_string(nvl, "path", path); 918 919 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESETS, 256, &nvl)) != 0) 920 goto out; 921 922 ri->nr = nvlist_get_number(nvl, "nr"); 923 924out: 925 nvlist_destroy(nvl); 926 return (ret); 927} 928 929int 930pfctl_get_eth_ruleset(int dev, const char *path, int nr, 931 struct pfctl_eth_ruleset_info *ri) 932{ 933 nvlist_t *nvl; 934 int ret; 935 936 bzero(ri, sizeof(*ri)); 937 938 nvl = nvlist_create(0); 939 nvlist_add_string(nvl, "path", path); 940 nvlist_add_number(nvl, "nr", nr); 941 942 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESET, 1024, &nvl)) != 0) 943 goto out; 944 945 ri->nr = nvlist_get_number(nvl, "nr"); 946 strlcpy(ri->path, nvlist_get_string(nvl, "path"), MAXPATHLEN); 947 strlcpy(ri->name, nvlist_get_string(nvl, "name"), 948 PF_ANCHOR_NAME_SIZE); 949 950out: 951 nvlist_destroy(nvl); 952 return (ret); 953} 954 955int 956pfctl_get_eth_rules_info(int dev, struct pfctl_eth_rules_info *rules, 957 const char *path) 958{ 959 nvlist_t *nvl; 960 int ret; 961 962 bzero(rules, sizeof(*rules)); 963 964 nvl = nvlist_create(0); 965 nvlist_add_string(nvl, "anchor", path); 966 967 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULES, 1024, &nvl)) != 0) 968 goto out; 969 970 rules->nr = nvlist_get_number(nvl, "nr"); 971 rules->ticket = nvlist_get_number(nvl, "ticket"); 972 973out: 974 nvlist_destroy(nvl); 975 return (ret); 976} 977 978int 979pfctl_get_eth_rule(int dev, uint32_t nr, uint32_t ticket, 980 const char *path, struct pfctl_eth_rule *rule, bool clear, 981 char *anchor_call) 982{ 983 nvlist_t *nvl; 984 int ret; 985 986 nvl = nvlist_create(0); 987 988 nvlist_add_string(nvl, "anchor", path); 989 nvlist_add_number(nvl, "ticket", ticket); 990 nvlist_add_number(nvl, "nr", nr); 991 nvlist_add_bool(nvl, "clear", clear); 992 993 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULE, 4096, &nvl)) != 0) 994 goto out; 995 996 pfctl_nveth_rule_to_eth_rule(nvl, rule); 997 998 if (anchor_call) 999 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"), 1000 MAXPATHLEN); 1001 1002out: 1003 nvlist_destroy(nvl); 1004 return (ret); 1005} 1006 1007int 1008pfctl_add_eth_rule(int dev, const struct pfctl_eth_rule *r, const char *anchor, 1009 const char *anchor_call, uint32_t ticket) 1010{ 1011 struct pfioc_nv nv; 1012 nvlist_t *nvl, *addr; 1013 void *packed; 1014 int error = 0; 1015 size_t labelcount, size; 1016 1017 nvl = nvlist_create(0); 1018 1019 nvlist_add_number(nvl, "ticket", ticket); 1020 nvlist_add_string(nvl, "anchor", anchor); 1021 nvlist_add_string(nvl, "anchor_call", anchor_call); 1022 1023 nvlist_add_number(nvl, "nr", r->nr); 1024 nvlist_add_bool(nvl, "quick", r->quick); 1025 nvlist_add_string(nvl, "ifname", r->ifname); 1026 nvlist_add_bool(nvl, "ifnot", r->ifnot); 1027 nvlist_add_number(nvl, "direction", r->direction); 1028 nvlist_add_number(nvl, "proto", r->proto); 1029 nvlist_add_string(nvl, "match_tagname", r->match_tagname); 1030 nvlist_add_bool(nvl, "match_tag_not", r->match_tag_not); 1031 1032 addr = pfctl_eth_addr_to_nveth_addr(&r->src); 1033 if (addr == NULL) { 1034 nvlist_destroy(nvl); 1035 return (ENOMEM); 1036 } 1037 nvlist_add_nvlist(nvl, "src", addr); 1038 nvlist_destroy(addr); 1039 1040 addr = pfctl_eth_addr_to_nveth_addr(&r->dst); 1041 if (addr == NULL) { 1042 nvlist_destroy(nvl); 1043 return (ENOMEM); 1044 } 1045 nvlist_add_nvlist(nvl, "dst", addr); 1046 nvlist_destroy(addr); 1047 1048 pfctl_nv_add_rule_addr(nvl, "ipsrc", &r->ipsrc); 1049 pfctl_nv_add_rule_addr(nvl, "ipdst", &r->ipdst); 1050 1051 labelcount = 0; 1052 while (labelcount < PF_RULE_MAX_LABEL_COUNT && 1053 r->label[labelcount][0] != 0) { 1054 nvlist_append_string_array(nvl, "labels", 1055 r->label[labelcount]); 1056 labelcount++; 1057 } 1058 nvlist_add_number(nvl, "ridentifier", r->ridentifier); 1059 1060 nvlist_add_string(nvl, "qname", r->qname); 1061 nvlist_add_string(nvl, "tagname", r->tagname); 1062 nvlist_add_number(nvl, "dnpipe", r->dnpipe); 1063 nvlist_add_number(nvl, "dnflags", r->dnflags); 1064 1065 nvlist_add_string(nvl, "bridge_to", r->bridge_to); 1066 1067 nvlist_add_number(nvl, "action", r->action); 1068 1069 packed = nvlist_pack(nvl, &size); 1070 if (packed == NULL) { 1071 nvlist_destroy(nvl); 1072 return (ENOMEM); 1073 } 1074 1075 nv.len = size; 1076 nv.size = size; 1077 nv.data = packed; 1078 1079 if (ioctl(dev, DIOCADDETHRULE, &nv) != 0) 1080 error = errno; 1081 1082 free(packed); 1083 nvlist_destroy(nvl); 1084 1085 return (error); 1086} 1087 1088static void 1089snl_add_msg_attr_addr_wrap(struct snl_writer *nw, uint32_t type, const struct pf_addr_wrap *addr) 1090{ 1091 int off; 1092 1093 off = snl_add_msg_attr_nested(nw, type); 1094 1095 snl_add_msg_attr_ip6(nw, PF_AT_ADDR, &addr->v.a.addr.v6); 1096 snl_add_msg_attr_ip6(nw, PF_AT_MASK, &addr->v.a.mask.v6); 1097 1098 if (addr->type == PF_ADDR_DYNIFTL) 1099 snl_add_msg_attr_string(nw, PF_AT_IFNAME, addr->v.ifname); 1100 if (addr->type == PF_ADDR_TABLE) 1101 snl_add_msg_attr_string(nw, PF_AT_TABLENAME, addr->v.tblname); 1102 snl_add_msg_attr_u8(nw, PF_AT_TYPE, addr->type); 1103 snl_add_msg_attr_u8(nw, PF_AT_IFLAGS, addr->iflags); 1104 1105 snl_end_attr_nested(nw, off); 1106} 1107 1108static void 1109snl_add_msg_attr_rule_addr(struct snl_writer *nw, uint32_t type, const struct pf_rule_addr *addr) 1110{ 1111 int off; 1112 1113 off = snl_add_msg_attr_nested(nw, type); 1114 1115 snl_add_msg_attr_addr_wrap(nw, PF_RAT_ADDR, &addr->addr); 1116 snl_add_msg_attr_u16(nw, PF_RAT_SRC_PORT, addr->port[0]); 1117 snl_add_msg_attr_u16(nw, PF_RAT_DST_PORT, addr->port[1]); 1118 snl_add_msg_attr_u8(nw, PF_RAT_NEG, addr->neg); 1119 snl_add_msg_attr_u8(nw, PF_RAT_OP, addr->port_op); 1120 1121 snl_end_attr_nested(nw, off); 1122} 1123 1124static void 1125snl_add_msg_attr_rule_labels(struct snl_writer *nw, uint32_t type, const char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]) 1126{ 1127 int off, i = 0; 1128 1129 off = snl_add_msg_attr_nested(nw, type); 1130 1131 while (i < PF_RULE_MAX_LABEL_COUNT && 1132 labels[i][0] != 0) { 1133 snl_add_msg_attr_string(nw, PF_LT_LABEL, labels[i]); 1134 i++; 1135 } 1136 1137 snl_end_attr_nested(nw, off); 1138} 1139 1140static void 1141snl_add_msg_attr_mape(struct snl_writer *nw, uint32_t type, const struct pf_mape_portset *me) 1142{ 1143 int off; 1144 1145 off = snl_add_msg_attr_nested(nw, type); 1146 1147 snl_add_msg_attr_u8(nw, PF_MET_OFFSET, me->offset); 1148 snl_add_msg_attr_u8(nw, PF_MET_PSID_LEN, me->psidlen); 1149 snl_add_msg_attr_u16(nw, PF_MET_PSID, me->psid); 1150 1151 snl_end_attr_nested(nw, off); 1152} 1153 1154static void 1155snl_add_msg_attr_rpool(struct snl_writer *nw, uint32_t type, const struct pfctl_pool *pool) 1156{ 1157 int off; 1158 1159 off = snl_add_msg_attr_nested(nw, type); 1160 1161 snl_add_msg_attr(nw, PF_PT_KEY, sizeof(pool->key), &pool->key); 1162 snl_add_msg_attr_ip6(nw, PF_PT_COUNTER, &pool->counter.v6); 1163 snl_add_msg_attr_u32(nw, PF_PT_TBLIDX, pool->tblidx); 1164 snl_add_msg_attr_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]); 1165 snl_add_msg_attr_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]); 1166 snl_add_msg_attr_u8(nw, PF_PT_OPTS, pool->opts); 1167 snl_add_msg_attr_mape(nw, PF_PT_MAPE, &pool->mape); 1168 1169 snl_end_attr_nested(nw, off); 1170} 1171 1172static void 1173snl_add_msg_attr_timeouts(struct snl_writer *nw, uint32_t type, const uint32_t *timeouts) 1174{ 1175 int off; 1176 1177 off = snl_add_msg_attr_nested(nw, type); 1178 1179 for (int i = 0; i < PFTM_MAX; i++) 1180 snl_add_msg_attr_u32(nw, PF_TT_TIMEOUT, timeouts[i]); 1181 1182 snl_end_attr_nested(nw, off); 1183} 1184 1185static void 1186snl_add_msg_attr_uid(struct snl_writer *nw, uint32_t type, const struct pf_rule_uid *uid) 1187{ 1188 int off; 1189 1190 off = snl_add_msg_attr_nested(nw, type); 1191 1192 snl_add_msg_attr_u32(nw, PF_RUT_UID_LOW, uid->uid[0]); 1193 snl_add_msg_attr_u32(nw, PF_RUT_UID_HIGH, uid->uid[1]); 1194 snl_add_msg_attr_u8(nw, PF_RUT_OP, uid->op); 1195 1196 snl_end_attr_nested(nw, off); 1197} 1198 1199static void 1200snl_add_msg_attr_pf_rule(struct snl_writer *nw, uint32_t type, const struct pfctl_rule *r) 1201{ 1202 int off; 1203 1204 off = snl_add_msg_attr_nested(nw, type); 1205 1206 snl_add_msg_attr_rule_addr(nw, PF_RT_SRC, &r->src); 1207 snl_add_msg_attr_rule_addr(nw, PF_RT_DST, &r->dst); 1208 snl_add_msg_attr_rule_labels(nw, PF_RT_LABELS, r->label); 1209 snl_add_msg_attr_u32(nw, PF_RT_RIDENTIFIER, r->ridentifier); 1210 snl_add_msg_attr_string(nw, PF_RT_IFNAME, r->ifname); 1211 snl_add_msg_attr_string(nw, PF_RT_QNAME, r->qname); 1212 snl_add_msg_attr_string(nw, PF_RT_PQNAME, r->pqname); 1213 snl_add_msg_attr_string(nw, PF_RT_TAGNAME, r->tagname); 1214 snl_add_msg_attr_string(nw, PF_RT_MATCH_TAGNAME, r->match_tagname); 1215 snl_add_msg_attr_string(nw, PF_RT_OVERLOAD_TBLNAME, r->overload_tblname); 1216 snl_add_msg_attr_rpool(nw, PF_RT_RPOOL, &r->rpool); 1217 snl_add_msg_attr_u32(nw, PF_RT_OS_FINGERPRINT, r->os_fingerprint); 1218 snl_add_msg_attr_u32(nw, PF_RT_RTABLEID, r->rtableid); 1219 snl_add_msg_attr_timeouts(nw, PF_RT_TIMEOUT, r->timeout); 1220 snl_add_msg_attr_u32(nw, PF_RT_MAX_STATES, r->max_states); 1221 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_NODES, r->max_src_nodes); 1222 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_STATES, r->max_src_states); 1223 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, r->max_src_conn_rate.limit); 1224 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, r->max_src_conn_rate.seconds); 1225 1226 snl_add_msg_attr_u16(nw, PF_RT_DNPIPE, r->dnpipe); 1227 snl_add_msg_attr_u16(nw, PF_RT_DNRPIPE, r->dnrpipe); 1228 snl_add_msg_attr_u32(nw, PF_RT_DNFLAGS, r->free_flags); 1229 1230 snl_add_msg_attr_u32(nw, PF_RT_NR, r->nr); 1231 snl_add_msg_attr_u32(nw, PF_RT_PROB, r->prob); 1232 snl_add_msg_attr_u32(nw, PF_RT_CUID, r->cuid); 1233 snl_add_msg_attr_u32(nw, PF_RT_CPID, r->cpid); 1234 1235 snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP, r->return_icmp); 1236 snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP6, r->return_icmp6); 1237 snl_add_msg_attr_u16(nw, PF_RT_MAX_MSS, r->max_mss); 1238 snl_add_msg_attr_u16(nw, PF_RT_SCRUB_FLAGS, r->scrub_flags); 1239 1240 snl_add_msg_attr_uid(nw, PF_RT_UID, &r->uid); 1241 snl_add_msg_attr_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&r->gid); 1242 1243 snl_add_msg_attr_u32(nw, PF_RT_RULE_FLAG, r->rule_flag); 1244 snl_add_msg_attr_u8(nw, PF_RT_ACTION, r->action); 1245 snl_add_msg_attr_u8(nw, PF_RT_DIRECTION, r->direction); 1246 snl_add_msg_attr_u8(nw, PF_RT_LOG, r->log); 1247 snl_add_msg_attr_u8(nw, PF_RT_LOGIF, r->logif); 1248 snl_add_msg_attr_u8(nw, PF_RT_QUICK, r->quick); 1249 snl_add_msg_attr_u8(nw, PF_RT_IF_NOT, r->ifnot); 1250 snl_add_msg_attr_u8(nw, PF_RT_MATCH_TAG_NOT, r->match_tag_not); 1251 snl_add_msg_attr_u8(nw, PF_RT_NATPASS, r->natpass); 1252 snl_add_msg_attr_u8(nw, PF_RT_KEEP_STATE, r->keep_state); 1253 snl_add_msg_attr_u8(nw, PF_RT_AF, r->af); 1254 snl_add_msg_attr_u8(nw, PF_RT_PROTO, r->proto); 1255 snl_add_msg_attr_u8(nw, PF_RT_TYPE, r->type); 1256 snl_add_msg_attr_u8(nw, PF_RT_CODE, r->code); 1257 snl_add_msg_attr_u8(nw, PF_RT_FLAGS, r->flags); 1258 snl_add_msg_attr_u8(nw, PF_RT_FLAGSET, r->flagset); 1259 snl_add_msg_attr_u8(nw, PF_RT_MIN_TTL, r->min_ttl); 1260 snl_add_msg_attr_u8(nw, PF_RT_ALLOW_OPTS, r->allow_opts); 1261 snl_add_msg_attr_u8(nw, PF_RT_RT, r->rt); 1262 snl_add_msg_attr_u8(nw, PF_RT_RETURN_TTL, r->return_ttl); 1263 snl_add_msg_attr_u8(nw, PF_RT_TOS, r->tos); 1264 snl_add_msg_attr_u8(nw, PF_RT_SET_TOS, r->set_tos); 1265 1266 snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_RELATIVE, r->anchor_relative); 1267 snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_WILDCARD, r->anchor_wildcard); 1268 snl_add_msg_attr_u8(nw, PF_RT_FLUSH, r->flush); 1269 snl_add_msg_attr_u8(nw, PF_RT_PRIO, r->prio); 1270 snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO, r->set_prio[0]); 1271 snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO_REPLY, r->set_prio[1]); 1272 1273 snl_add_msg_attr_ip6(nw, PF_RT_DIVERT_ADDRESS, &r->divert.addr.v6); 1274 snl_add_msg_attr_u16(nw, PF_RT_DIVERT_PORT, r->divert.port); 1275 1276 snl_end_attr_nested(nw, off); 1277} 1278 1279int 1280pfctl_add_rule(int dev __unused, const struct pfctl_rule *r, const char *anchor, 1281 const char *anchor_call, uint32_t ticket, uint32_t pool_ticket) 1282{ 1283 struct pfctl_handle *h; 1284 int ret; 1285 1286 h = pfctl_open(PF_DEVICE); 1287 if (h == NULL) 1288 return (ENODEV); 1289 1290 ret = pfctl_add_rule_h(h, r, anchor, anchor_call, ticket, pool_ticket); 1291 1292 pfctl_close(h); 1293 1294 return (ret); 1295} 1296 1297int 1298pfctl_add_rule_h(struct pfctl_handle *h, const struct pfctl_rule *r, 1299 const char *anchor, const char *anchor_call, uint32_t ticket, 1300 uint32_t pool_ticket) 1301{ 1302 struct snl_writer nw; 1303 struct snl_errmsg_data e = {}; 1304 struct nlmsghdr *hdr; 1305 uint32_t seq_id; 1306 int family_id; 1307 1308 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 1309 if (family_id == 0) 1310 return (ENOTSUP); 1311 1312 snl_init_writer(&h->ss, &nw); 1313 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_ADDRULE); 1314 hdr->nlmsg_flags |= NLM_F_DUMP; 1315 snl_add_msg_attr_u32(&nw, PF_ART_TICKET, ticket); 1316 snl_add_msg_attr_u32(&nw, PF_ART_POOL_TICKET, pool_ticket); 1317 snl_add_msg_attr_string(&nw, PF_ART_ANCHOR, anchor); 1318 snl_add_msg_attr_string(&nw, PF_ART_ANCHOR_CALL, anchor_call); 1319 1320 snl_add_msg_attr_pf_rule(&nw, PF_ART_RULE, r); 1321 1322 if ((hdr = snl_finalize_msg(&nw)) == NULL) 1323 return (ENXIO); 1324 1325 seq_id = hdr->nlmsg_seq; 1326 1327 if (! snl_send_message(&h->ss, hdr)) 1328 return (ENXIO); 1329 1330 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 1331 } 1332 1333 return (e.error); 1334} 1335 1336#define _IN(_field) offsetof(struct genlmsghdr, _field) 1337#define _OUT(_field) offsetof(struct pfctl_rules_info, _field) 1338static struct snl_attr_parser ap_getrules[] = { 1339 { .type = PF_GR_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 }, 1340 { .type = PF_GR_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 }, 1341}; 1342static struct snl_field_parser fp_getrules[] = { 1343}; 1344#undef _IN 1345#undef _OUT 1346SNL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, fp_getrules, ap_getrules); 1347 1348int 1349pfctl_get_rules_info_h(struct pfctl_handle *h, struct pfctl_rules_info *rules, uint32_t ruleset, 1350 const char *path) 1351{ 1352 struct snl_errmsg_data e = {}; 1353 struct nlmsghdr *hdr; 1354 struct snl_writer nw; 1355 uint32_t seq_id; 1356 int family_id; 1357 1358 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 1359 if (family_id == 0) 1360 return (ENOTSUP); 1361 1362 snl_init_writer(&h->ss, &nw); 1363 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETRULES); 1364 hdr->nlmsg_flags |= NLM_F_DUMP; 1365 1366 snl_add_msg_attr_string(&nw, PF_GR_ANCHOR, path); 1367 snl_add_msg_attr_u8(&nw, PF_GR_ACTION, ruleset); 1368 1369 hdr = snl_finalize_msg(&nw); 1370 if (hdr == NULL) 1371 return (ENOMEM); 1372 1373 seq_id = hdr->nlmsg_seq; 1374 if (! snl_send_message(&h->ss, hdr)) 1375 return (ENXIO); 1376 1377 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 1378 if (! snl_parse_nlmsg(&h->ss, hdr, &getrules_parser, rules)) 1379 continue; 1380 } 1381 1382 return (e.error); 1383} 1384 1385int 1386pfctl_get_rules_info(int dev __unused, struct pfctl_rules_info *rules, uint32_t ruleset, 1387 const char *path) 1388{ 1389 struct pfctl_handle *h; 1390 int error; 1391 1392 h = pfctl_open(PF_DEVICE); 1393 if (h == NULL) 1394 return (ENOTSUP); 1395 error = pfctl_get_rules_info_h(h, rules, ruleset, path); 1396 pfctl_close(h); 1397 1398 return (error); 1399} 1400 1401int 1402pfctl_get_rule_h(struct pfctl_handle *h, uint32_t nr, uint32_t ticket, const char *anchor, 1403 uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call) 1404{ 1405 return (pfctl_get_clear_rule_h(h, nr, ticket, anchor, ruleset, rule, 1406 anchor_call, false)); 1407} 1408 1409int 1410pfctl_get_rule(int dev, uint32_t nr, uint32_t ticket, const char *anchor, 1411 uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call) 1412{ 1413 return (pfctl_get_clear_rule(dev, nr, ticket, anchor, ruleset, rule, 1414 anchor_call, false)); 1415} 1416 1417#define _OUT(_field) offsetof(struct pf_addr_wrap, _field) 1418static const struct snl_attr_parser ap_addr_wrap[] = { 1419 { .type = PF_AT_ADDR, .off = _OUT(v.a.addr), .cb = snl_attr_get_in6_addr }, 1420 { .type = PF_AT_MASK, .off = _OUT(v.a.mask), .cb = snl_attr_get_in6_addr }, 1421 { .type = PF_AT_IFNAME, .off = _OUT(v.ifname), .arg = (void *)IFNAMSIZ,.cb = snl_attr_copy_string }, 1422 { .type = PF_AT_TABLENAME, .off = _OUT(v.tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = snl_attr_copy_string }, 1423 { .type = PF_AT_TYPE, .off = _OUT(type), .cb = snl_attr_get_uint8 }, 1424 { .type = PF_AT_IFLAGS, .off = _OUT(iflags), .cb = snl_attr_get_uint8 }, 1425 { .type = PF_AT_TBLCNT, .off = _OUT(p.tblcnt), .cb = snl_attr_get_uint32 }, 1426 { .type = PF_AT_DYNCNT, .off = _OUT(p.dyncnt), .cb = snl_attr_get_uint32 }, 1427}; 1428SNL_DECLARE_ATTR_PARSER(addr_wrap_parser, ap_addr_wrap); 1429#undef _OUT 1430 1431#define _OUT(_field) offsetof(struct pf_rule_addr, _field) 1432static struct snl_attr_parser ap_rule_addr[] = { 1433 { .type = PF_RAT_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = snl_attr_get_nested }, 1434 { .type = PF_RAT_SRC_PORT, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 }, 1435 { .type = PF_RAT_DST_PORT, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 }, 1436 { .type = PF_RAT_NEG, .off = _OUT(neg), .cb = snl_attr_get_uint8 }, 1437 { .type = PF_RAT_OP, .off = _OUT(port_op), .cb = snl_attr_get_uint8 }, 1438}; 1439#undef _OUT 1440SNL_DECLARE_ATTR_PARSER(rule_addr_parser, ap_rule_addr); 1441 1442struct snl_parsed_labels 1443{ 1444 char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 1445 uint32_t i; 1446}; 1447 1448static bool 1449snl_attr_get_pf_rule_labels(struct snl_state *ss, struct nlattr *nla, 1450 const void *arg __unused, void *target) 1451{ 1452 struct snl_parsed_labels *l = (struct snl_parsed_labels *)target; 1453 bool ret; 1454 1455 if (l->i >= PF_RULE_MAX_LABEL_COUNT) 1456 return (E2BIG); 1457 1458 ret = snl_attr_copy_string(ss, nla, (void *)PF_RULE_LABEL_SIZE, 1459 l->labels[l->i]); 1460 if (ret) 1461 l->i++; 1462 1463 return (ret); 1464} 1465 1466#define _OUT(_field) offsetof(struct nl_parsed_labels, _field) 1467static const struct snl_attr_parser ap_labels[] = { 1468 { .type = PF_LT_LABEL, .off = 0, .cb = snl_attr_get_pf_rule_labels }, 1469}; 1470SNL_DECLARE_ATTR_PARSER(rule_labels_parser, ap_labels); 1471#undef _OUT 1472 1473static bool 1474snl_attr_get_nested_pf_rule_labels(struct snl_state *ss, struct nlattr *nla, 1475 const void *arg __unused, void *target) 1476{ 1477 struct snl_parsed_labels parsed_labels = { }; 1478 bool error; 1479 1480 /* Assumes target points to the beginning of the structure */ 1481 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &rule_labels_parser, &parsed_labels); 1482 if (! error) 1483 return (error); 1484 1485 memcpy(target, parsed_labels.labels, sizeof(parsed_labels.labels)); 1486 1487 return (true); 1488} 1489 1490#define _OUT(_field) offsetof(struct pf_mape_portset, _field) 1491static const struct snl_attr_parser ap_mape_portset[] = { 1492 { .type = PF_MET_OFFSET, .off = _OUT(offset), .cb = snl_attr_get_uint8 }, 1493 { .type = PF_MET_PSID_LEN, .off = _OUT(psidlen), .cb = snl_attr_get_uint8 }, 1494 {. type = PF_MET_PSID, .off = _OUT(psid), .cb = snl_attr_get_uint16 }, 1495}; 1496SNL_DECLARE_ATTR_PARSER(mape_portset_parser, ap_mape_portset); 1497#undef _OUT 1498 1499#define _OUT(_field) offsetof(struct pfctl_pool, _field) 1500static const struct snl_attr_parser ap_pool[] = { 1501 { .type = PF_PT_KEY, .off = _OUT(key), .arg = (void *)sizeof(struct pf_poolhashkey), .cb = snl_attr_get_bytes }, 1502 { .type = PF_PT_COUNTER, .off = _OUT(counter), .cb = snl_attr_get_in6_addr }, 1503 { .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = snl_attr_get_uint32 }, 1504 { .type = PF_PT_PROXY_SRC_PORT, .off = _OUT(proxy_port[0]), .cb = snl_attr_get_uint16 }, 1505 { .type = PF_PT_PROXY_DST_PORT, .off = _OUT(proxy_port[1]), .cb = snl_attr_get_uint16 }, 1506 { .type = PF_PT_OPTS, .off = _OUT(opts), .cb = snl_attr_get_uint8 }, 1507 { .type = PF_PT_MAPE, .off = _OUT(mape), .arg = &mape_portset_parser, .cb = snl_attr_get_nested }, 1508}; 1509SNL_DECLARE_ATTR_PARSER(pool_parser, ap_pool); 1510#undef _OUT 1511 1512struct nl_parsed_timeouts 1513{ 1514 uint32_t timeouts[PFTM_MAX]; 1515 uint32_t i; 1516}; 1517 1518static bool 1519snl_attr_get_pf_timeout(struct snl_state *ss, struct nlattr *nla, 1520 const void *arg __unused, void *target) 1521{ 1522 struct nl_parsed_timeouts *t = (struct nl_parsed_timeouts *)target; 1523 bool ret; 1524 1525 if (t->i >= PFTM_MAX) 1526 return (E2BIG); 1527 1528 ret = snl_attr_get_uint32(ss, nla, NULL, &t->timeouts[t->i]); 1529 if (ret) 1530 t->i++; 1531 1532 return (ret); 1533} 1534 1535#define _OUT(_field) offsetof(struct nl_parsed_timeout, _field) 1536static const struct snl_attr_parser ap_timeouts[] = { 1537 { .type = PF_TT_TIMEOUT, .off = 0, .cb = snl_attr_get_pf_timeout }, 1538}; 1539SNL_DECLARE_ATTR_PARSER(timeout_parser, ap_timeouts); 1540#undef _OUT 1541 1542static bool 1543snl_attr_get_nested_timeouts(struct snl_state *ss, struct nlattr *nla, 1544 const void *arg __unused, void *target) 1545{ 1546 struct nl_parsed_timeouts parsed_timeouts = { }; 1547 bool error; 1548 1549 /* Assumes target points to the beginning of the structure */ 1550 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &timeout_parser, &parsed_timeouts); 1551 if (! error) 1552 return (error); 1553 1554 memcpy(target, parsed_timeouts.timeouts, sizeof(parsed_timeouts.timeouts)); 1555 1556 return (true); 1557} 1558 1559#define _OUT(_field) offsetof(struct pf_rule_uid, _field) 1560static const struct snl_attr_parser ap_rule_uid[] = { 1561 { .type = PF_RUT_UID_LOW, .off = _OUT(uid[0]), .cb = snl_attr_get_uint32 }, 1562 { .type = PF_RUT_UID_HIGH, .off = _OUT(uid[1]), .cb = snl_attr_get_uint32 }, 1563 { .type = PF_RUT_OP, .off = _OUT(op), .cb = snl_attr_get_uint8 }, 1564}; 1565SNL_DECLARE_ATTR_PARSER(rule_uid_parser, ap_rule_uid); 1566#undef _OUT 1567 1568struct pfctl_nl_get_rule { 1569 struct pfctl_rule r; 1570 char anchor_call[MAXPATHLEN]; 1571}; 1572#define _OUT(_field) offsetof(struct pfctl_nl_get_rule, _field) 1573static struct snl_attr_parser ap_getrule[] = { 1574 { .type = PF_RT_SRC, .off = _OUT(r.src), .arg = &rule_addr_parser,.cb = snl_attr_get_nested }, 1575 { .type = PF_RT_DST, .off = _OUT(r.dst), .arg = &rule_addr_parser,.cb = snl_attr_get_nested }, 1576 { .type = PF_RT_RIDENTIFIER, .off = _OUT(r.ridentifier), .cb = snl_attr_get_uint32 }, 1577 { .type = PF_RT_LABELS, .off = _OUT(r.label), .arg = &rule_labels_parser,.cb = snl_attr_get_nested_pf_rule_labels }, 1578 { .type = PF_RT_IFNAME, .off = _OUT(r.ifname), .arg = (void *)IFNAMSIZ, .cb = snl_attr_copy_string }, 1579 { .type = PF_RT_QNAME, .off = _OUT(r.qname), .arg = (void *)PF_QNAME_SIZE, .cb = snl_attr_copy_string }, 1580 { .type = PF_RT_PQNAME, .off = _OUT(r.pqname), .arg = (void *)PF_QNAME_SIZE, .cb = snl_attr_copy_string }, 1581 { .type = PF_RT_TAGNAME, .off = _OUT(r.tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = snl_attr_copy_string }, 1582 { .type = PF_RT_MATCH_TAGNAME, .off = _OUT(r.match_tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = snl_attr_copy_string }, 1583 { .type = PF_RT_OVERLOAD_TBLNAME, .off = _OUT(r.overload_tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = snl_attr_copy_string }, 1584 { .type = PF_RT_RPOOL, .off = _OUT(r.rpool), .arg = &pool_parser, .cb = snl_attr_get_nested }, 1585 { .type = PF_RT_OS_FINGERPRINT, .off = _OUT(r.os_fingerprint), .cb = snl_attr_get_uint32 }, 1586 { .type = PF_RT_RTABLEID, .off = _OUT(r.rtableid), .cb = snl_attr_get_uint32 }, 1587 { .type = PF_RT_TIMEOUT, .off = _OUT(r.timeout), .arg = &timeout_parser, .cb = snl_attr_get_nested_timeouts }, 1588 { .type = PF_RT_MAX_STATES, .off = _OUT(r.max_states), .cb = snl_attr_get_uint32 }, 1589 { .type = PF_RT_MAX_SRC_NODES, .off = _OUT(r.max_src_nodes), .cb = snl_attr_get_uint32 }, 1590 { .type = PF_RT_MAX_SRC_STATES, .off = _OUT(r.max_src_states), .cb = snl_attr_get_uint32 }, 1591 { .type = PF_RT_MAX_SRC_CONN_RATE_LIMIT, .off = _OUT(r.max_src_conn_rate.limit), .cb = snl_attr_get_uint32 }, 1592 { .type = PF_RT_MAX_SRC_CONN_RATE_SECS, .off = _OUT(r.max_src_conn_rate.seconds), .cb = snl_attr_get_uint32 }, 1593 { .type = PF_RT_DNPIPE, .off = _OUT(r.dnpipe), .cb = snl_attr_get_uint16 }, 1594 { .type = PF_RT_DNRPIPE, .off = _OUT(r.dnrpipe), .cb = snl_attr_get_uint16 }, 1595 { .type = PF_RT_DNFLAGS, .off = _OUT(r.free_flags), .cb = snl_attr_get_uint32 }, 1596 { .type = PF_RT_NR, .off = _OUT(r.nr), .cb = snl_attr_get_uint32 }, 1597 { .type = PF_RT_PROB, .off = _OUT(r.prob), .cb = snl_attr_get_uint32 }, 1598 { .type = PF_RT_CUID, .off = _OUT(r.cuid), .cb = snl_attr_get_uint32 }, 1599 {. type = PF_RT_CPID, .off = _OUT(r.cpid), .cb = snl_attr_get_uint32 }, 1600 { .type = PF_RT_RETURN_ICMP, .off = _OUT(r.return_icmp), .cb = snl_attr_get_uint16 }, 1601 { .type = PF_RT_RETURN_ICMP6, .off = _OUT(r.return_icmp6), .cb = snl_attr_get_uint16 }, 1602 { .type = PF_RT_MAX_MSS, .off = _OUT(r.max_mss), .cb = snl_attr_get_uint16 }, 1603 { .type = PF_RT_SCRUB_FLAGS, .off = _OUT(r.scrub_flags), .cb = snl_attr_get_uint16 }, 1604 { .type = PF_RT_UID, .off = _OUT(r.uid), .arg = &rule_uid_parser, .cb = snl_attr_get_nested }, 1605 { .type = PF_RT_GID, .off = _OUT(r.gid), .arg = &rule_uid_parser, .cb = snl_attr_get_nested }, 1606 { .type = PF_RT_RULE_FLAG, .off = _OUT(r.rule_flag), .cb = snl_attr_get_uint32 }, 1607 { .type = PF_RT_ACTION, .off = _OUT(r.action), .cb = snl_attr_get_uint8 }, 1608 { .type = PF_RT_DIRECTION, .off = _OUT(r.direction), .cb = snl_attr_get_uint8 }, 1609 { .type = PF_RT_LOG, .off = _OUT(r.log), .cb = snl_attr_get_uint8 }, 1610 { .type = PF_RT_LOGIF, .off = _OUT(r.logif), .cb = snl_attr_get_uint8 }, 1611 { .type = PF_RT_QUICK, .off = _OUT(r.quick), .cb = snl_attr_get_uint8 }, 1612 { .type = PF_RT_IF_NOT, .off = _OUT(r.ifnot), .cb = snl_attr_get_uint8 }, 1613 { .type = PF_RT_MATCH_TAG_NOT, .off = _OUT(r.match_tag_not), .cb = snl_attr_get_uint8 }, 1614 { .type = PF_RT_NATPASS, .off = _OUT(r.natpass), .cb = snl_attr_get_uint8 }, 1615 { .type = PF_RT_KEEP_STATE, .off = _OUT(r.keep_state), .cb = snl_attr_get_uint8 }, 1616 { .type = PF_RT_AF, .off = _OUT(r.af), .cb = snl_attr_get_uint8 }, 1617 { .type = PF_RT_PROTO, .off = _OUT(r.proto), .cb = snl_attr_get_uint8 }, 1618 { .type = PF_RT_TYPE, .off = _OUT(r.type), .cb = snl_attr_get_uint8 }, 1619 { .type = PF_RT_CODE, .off = _OUT(r.code), .cb = snl_attr_get_uint8 }, 1620 { .type = PF_RT_FLAGS, .off = _OUT(r.flags), .cb = snl_attr_get_uint8 }, 1621 { .type = PF_RT_FLAGSET, .off = _OUT(r.flagset), .cb = snl_attr_get_uint8 }, 1622 { .type = PF_RT_MIN_TTL, .off = _OUT(r.min_ttl), .cb = snl_attr_get_uint8 }, 1623 { .type = PF_RT_ALLOW_OPTS, .off = _OUT(r.allow_opts), .cb = snl_attr_get_uint8 }, 1624 { .type = PF_RT_RT, .off = _OUT(r.rt), .cb = snl_attr_get_uint8 }, 1625 { .type = PF_RT_RETURN_TTL, .off = _OUT(r.return_ttl), .cb = snl_attr_get_uint8 }, 1626 { .type = PF_RT_TOS, .off = _OUT(r.tos), .cb = snl_attr_get_uint8 }, 1627 { .type = PF_RT_SET_TOS, .off = _OUT(r.set_tos), .cb = snl_attr_get_uint8 }, 1628 { .type = PF_RT_ANCHOR_RELATIVE, .off = _OUT(r.anchor_relative), .cb = snl_attr_get_uint8 }, 1629 { .type = PF_RT_ANCHOR_WILDCARD, .off = _OUT(r.anchor_wildcard), .cb = snl_attr_get_uint8 }, 1630 { .type = PF_RT_FLUSH, .off = _OUT(r.flush), .cb = snl_attr_get_uint8 }, 1631 { .type = PF_RT_PRIO, .off = _OUT(r.prio), .cb = snl_attr_get_uint8 }, 1632 { .type = PF_RT_SET_PRIO, .off = _OUT(r.set_prio[0]), .cb = snl_attr_get_uint8 }, 1633 { .type = PF_RT_SET_PRIO_REPLY, .off = _OUT(r.set_prio[1]), .cb = snl_attr_get_uint8 }, 1634 { .type = PF_RT_DIVERT_ADDRESS, .off = _OUT(r.divert.addr), .cb = snl_attr_get_in6_addr }, 1635 { .type = PF_RT_DIVERT_PORT, .off = _OUT(r.divert.port), .cb = snl_attr_get_uint16 }, 1636 { .type = PF_RT_PACKETS_IN, .off = _OUT(r.packets[0]), .cb = snl_attr_get_uint64 }, 1637 { .type = PF_RT_PACKETS_OUT, .off = _OUT(r.packets[1]), .cb = snl_attr_get_uint64 }, 1638 { .type = PF_RT_BYTES_IN, .off = _OUT(r.bytes[0]), .cb = snl_attr_get_uint64 }, 1639 { .type = PF_RT_BYTES_OUT, .off = _OUT(r.bytes[1]), .cb = snl_attr_get_uint64 }, 1640 { .type = PF_RT_EVALUATIONS, .off = _OUT(r.evaluations), .cb = snl_attr_get_uint64 }, 1641 { .type = PF_RT_TIMESTAMP, .off = _OUT(r.last_active_timestamp), .cb = snl_attr_get_uint64 }, 1642 { .type = PF_RT_STATES_CUR, .off = _OUT(r.states_cur), .cb = snl_attr_get_uint64 }, 1643 { .type = PF_RT_STATES_TOTAL, .off = _OUT(r.states_tot), .cb = snl_attr_get_uint64 }, 1644 { .type = PF_RT_SRC_NODES, .off = _OUT(r.src_nodes), .cb = snl_attr_get_uint64 }, 1645 { .type = PF_RT_ANCHOR_CALL, .off = _OUT(anchor_call), .arg = (void*)MAXPATHLEN, .cb = snl_attr_copy_string }, 1646}; 1647static struct snl_field_parser fp_getrule[] = {}; 1648#undef _OUT 1649SNL_DECLARE_PARSER(getrule_parser, struct genlmsghdr, fp_getrule, ap_getrule); 1650 1651int 1652pfctl_get_clear_rule_h(struct pfctl_handle *h, uint32_t nr, uint32_t ticket, 1653 const char *anchor, uint32_t ruleset, struct pfctl_rule *rule, 1654 char *anchor_call, bool clear) 1655{ 1656 struct pfctl_nl_get_rule attrs = {}; 1657 struct snl_errmsg_data e = {}; 1658 struct nlmsghdr *hdr; 1659 struct snl_writer nw; 1660 uint32_t seq_id; 1661 int family_id; 1662 1663 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 1664 if (family_id == 0) 1665 return (ENOTSUP); 1666 1667 snl_init_writer(&h->ss, &nw); 1668 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETRULE); 1669 hdr->nlmsg_flags |= NLM_F_DUMP; 1670 1671 snl_add_msg_attr_string(&nw, PF_GR_ANCHOR, anchor); 1672 snl_add_msg_attr_u8(&nw, PF_GR_ACTION, ruleset); 1673 snl_add_msg_attr_u32(&nw, PF_GR_NR, nr); 1674 snl_add_msg_attr_u32(&nw, PF_GR_TICKET, ticket); 1675 snl_add_msg_attr_u8(&nw, PF_GR_CLEAR, clear); 1676 1677 hdr = snl_finalize_msg(&nw); 1678 if (hdr == NULL) 1679 return (ENOMEM); 1680 1681 seq_id = hdr->nlmsg_seq; 1682 if (! snl_send_message(&h->ss, hdr)) 1683 return (ENXIO); 1684 1685 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 1686 if (! snl_parse_nlmsg(&h->ss, hdr, &getrule_parser, &attrs)) 1687 continue; 1688 } 1689 1690 memcpy(rule, &attrs.r, sizeof(attrs.r)); 1691 strlcpy(anchor_call, attrs.anchor_call, MAXPATHLEN); 1692 1693 return (e.error); 1694} 1695 1696int 1697pfctl_get_clear_rule(int dev, uint32_t nr, uint32_t ticket, 1698 const char *anchor, uint32_t ruleset, struct pfctl_rule *rule, 1699 char *anchor_call, bool clear) 1700{ 1701 nvlist_t *nvl; 1702 int ret; 1703 1704 nvl = nvlist_create(0); 1705 if (nvl == 0) 1706 return (ENOMEM); 1707 1708 nvlist_add_number(nvl, "nr", nr); 1709 nvlist_add_number(nvl, "ticket", ticket); 1710 nvlist_add_string(nvl, "anchor", anchor); 1711 nvlist_add_number(nvl, "ruleset", ruleset); 1712 1713 if (clear) 1714 nvlist_add_bool(nvl, "clear_counter", true); 1715 1716 if ((ret = pfctl_do_ioctl(dev, DIOCGETRULENV, 8192, &nvl)) != 0) 1717 goto out; 1718 1719 pf_nvrule_to_rule(nvlist_get_nvlist(nvl, "rule"), rule); 1720 1721 if (anchor_call) 1722 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"), 1723 MAXPATHLEN); 1724 1725out: 1726 nvlist_destroy(nvl); 1727 return (ret); 1728} 1729 1730int 1731pfctl_set_keepcounters(int dev, bool keep) 1732{ 1733 struct pfioc_nv nv; 1734 nvlist_t *nvl; 1735 int ret; 1736 1737 nvl = nvlist_create(0); 1738 1739 nvlist_add_bool(nvl, "keep_counters", keep); 1740 1741 nv.data = nvlist_pack(nvl, &nv.len); 1742 nv.size = nv.len; 1743 1744 nvlist_destroy(nvl); 1745 1746 ret = ioctl(dev, DIOCKEEPCOUNTERS, &nv); 1747 1748 free(nv.data); 1749 return (ret); 1750} 1751 1752struct pfctl_creator { 1753 uint32_t id; 1754}; 1755#define _IN(_field) offsetof(struct genlmsghdr, _field) 1756#define _OUT(_field) offsetof(struct pfctl_creator, _field) 1757static struct snl_attr_parser ap_creators[] = { 1758 { .type = PF_ST_CREATORID, .off = _OUT(id), .cb = snl_attr_get_uint32 }, 1759}; 1760static struct snl_field_parser fp_creators[] = { 1761}; 1762#undef _IN 1763#undef _OUT 1764SNL_DECLARE_PARSER(creator_parser, struct genlmsghdr, fp_creators, ap_creators); 1765 1766static int 1767pfctl_get_creators_nl(struct snl_state *ss, uint32_t *creators, size_t *len) 1768{ 1769 1770 int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME); 1771 size_t i = 0; 1772 1773 struct nlmsghdr *hdr; 1774 struct snl_writer nw; 1775 1776 if (family_id == 0) 1777 return (ENOTSUP); 1778 1779 snl_init_writer(ss, &nw); 1780 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETCREATORS); 1781 hdr->nlmsg_flags |= NLM_F_DUMP; 1782 hdr = snl_finalize_msg(&nw); 1783 if (hdr == NULL) 1784 return (ENOMEM); 1785 uint32_t seq_id = hdr->nlmsg_seq; 1786 1787 snl_send_message(ss, hdr); 1788 1789 struct snl_errmsg_data e = {}; 1790 while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) { 1791 struct pfctl_creator c; 1792 bzero(&c, sizeof(c)); 1793 1794 if (!snl_parse_nlmsg(ss, hdr, &creator_parser, &c)) 1795 continue; 1796 1797 creators[i] = c.id; 1798 i++; 1799 if (i > *len) 1800 return (E2BIG); 1801 } 1802 1803 *len = i; 1804 1805 return (0); 1806} 1807 1808int 1809pfctl_get_creatorids(struct pfctl_handle *h, uint32_t *creators, size_t *len) 1810{ 1811 int error; 1812 1813 error = pfctl_get_creators_nl(&h->ss, creators, len); 1814 1815 return (error); 1816} 1817 1818static inline bool 1819snl_attr_get_pfaddr(struct snl_state *ss __unused, struct nlattr *nla, 1820 const void *arg __unused, void *target) 1821{ 1822 memcpy(target, NLA_DATA(nla), NLA_DATA_LEN(nla)); 1823 return (true); 1824} 1825 1826static inline bool 1827snl_attr_store_ifname(struct snl_state *ss __unused, struct nlattr *nla, 1828 const void *arg __unused, void *target) 1829{ 1830 size_t maxlen = NLA_DATA_LEN(nla); 1831 1832 if (strnlen((char *)NLA_DATA(nla), maxlen) < maxlen) { 1833 strlcpy(target, (char *)NLA_DATA(nla), maxlen); 1834 return (true); 1835 } 1836 return (false); 1837} 1838 1839#define _OUT(_field) offsetof(struct pfctl_state_peer, _field) 1840static const struct snl_attr_parser nla_p_speer[] = { 1841 { .type = PF_STP_SEQLO, .off = _OUT(seqlo), .cb = snl_attr_get_uint32 }, 1842 { .type = PF_STP_SEQHI, .off = _OUT(seqhi), .cb = snl_attr_get_uint32 }, 1843 { .type = PF_STP_SEQDIFF, .off = _OUT(seqdiff), .cb = snl_attr_get_uint32 }, 1844 { .type = PF_STP_STATE, .off = _OUT(state), .cb = snl_attr_get_uint8 }, 1845 { .type = PF_STP_WSCALE, .off = _OUT(wscale), .cb = snl_attr_get_uint8 }, 1846}; 1847SNL_DECLARE_ATTR_PARSER(speer_parser, nla_p_speer); 1848#undef _OUT 1849 1850#define _OUT(_field) offsetof(struct pf_state_key_export, _field) 1851static const struct snl_attr_parser nla_p_skey[] = { 1852 { .type = PF_STK_ADDR0, .off = _OUT(addr[0]), .cb = snl_attr_get_pfaddr }, 1853 { .type = PF_STK_ADDR1, .off = _OUT(addr[1]), .cb = snl_attr_get_pfaddr }, 1854 { .type = PF_STK_PORT0, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 }, 1855 { .type = PF_STK_PORT1, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 }, 1856}; 1857SNL_DECLARE_ATTR_PARSER(skey_parser, nla_p_skey); 1858#undef _OUT 1859 1860#define _IN(_field) offsetof(struct genlmsghdr, _field) 1861#define _OUT(_field) offsetof(struct pfctl_state, _field) 1862static struct snl_attr_parser ap_state[] = { 1863 { .type = PF_ST_ID, .off = _OUT(id), .cb = snl_attr_get_uint64 }, 1864 { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = snl_attr_get_uint32 }, 1865 { .type = PF_ST_IFNAME, .off = _OUT(ifname), .cb = snl_attr_store_ifname }, 1866 { .type = PF_ST_ORIG_IFNAME, .off = _OUT(orig_ifname), .cb = snl_attr_store_ifname }, 1867 { .type = PF_ST_KEY_WIRE, .off = _OUT(key[0]), .arg = &skey_parser, .cb = snl_attr_get_nested }, 1868 { .type = PF_ST_KEY_STACK, .off = _OUT(key[1]), .arg = &skey_parser, .cb = snl_attr_get_nested }, 1869 { .type = PF_ST_PEER_SRC, .off = _OUT(src), .arg = &speer_parser, .cb = snl_attr_get_nested }, 1870 { .type = PF_ST_PEER_DST, .off = _OUT(dst), .arg = &speer_parser, .cb = snl_attr_get_nested }, 1871 { .type = PF_ST_RT_ADDR, .off = _OUT(rt_addr), .cb = snl_attr_get_pfaddr }, 1872 { .type = PF_ST_RULE, .off = _OUT(rule), .cb = snl_attr_get_uint32 }, 1873 { .type = PF_ST_ANCHOR, .off = _OUT(anchor), .cb = snl_attr_get_uint32 }, 1874 { .type = PF_ST_NAT_RULE, .off = _OUT(nat_rule), .cb = snl_attr_get_uint32 }, 1875 { .type = PF_ST_CREATION, .off = _OUT(creation), .cb = snl_attr_get_uint32 }, 1876 { .type = PF_ST_EXPIRE, .off = _OUT(expire), .cb = snl_attr_get_uint32 }, 1877 { .type = PF_ST_PACKETS0, .off = _OUT(packets[0]), .cb = snl_attr_get_uint64 }, 1878 { .type = PF_ST_PACKETS1, .off = _OUT(packets[1]), .cb = snl_attr_get_uint64 }, 1879 { .type = PF_ST_BYTES0, .off = _OUT(bytes[0]), .cb = snl_attr_get_uint64 }, 1880 { .type = PF_ST_BYTES1, .off = _OUT(bytes[1]), .cb = snl_attr_get_uint64 }, 1881 { .type = PF_ST_AF, .off = _OUT(key[0].af), .cb = snl_attr_get_uint8 }, 1882 { .type = PF_ST_PROTO, .off = _OUT(key[0].proto), .cb = snl_attr_get_uint8 }, 1883 { .type = PF_ST_DIRECTION, .off = _OUT(direction), .cb = snl_attr_get_uint8 }, 1884 { .type = PF_ST_LOG, .off = _OUT(log), .cb = snl_attr_get_uint8 }, 1885 { .type = PF_ST_STATE_FLAGS, .off = _OUT(state_flags), .cb = snl_attr_get_uint16 }, 1886 { .type = PF_ST_SYNC_FLAGS, .off = _OUT(sync_flags), .cb = snl_attr_get_uint8 }, 1887 { .type = PF_ST_RTABLEID, .off = _OUT(rtableid), .cb = snl_attr_get_int32 }, 1888 { .type = PF_ST_MIN_TTL, .off = _OUT(min_ttl), .cb = snl_attr_get_uint8 }, 1889 { .type = PF_ST_MAX_MSS, .off = _OUT(max_mss), .cb = snl_attr_get_uint16 }, 1890 { .type = PF_ST_DNPIPE, .off = _OUT(dnpipe), .cb = snl_attr_get_uint16 }, 1891 { .type = PF_ST_DNRPIPE, .off = _OUT(dnrpipe), .cb = snl_attr_get_uint16 }, 1892 { .type = PF_ST_RT, .off = _OUT(rt), .cb = snl_attr_get_uint8 }, 1893 { .type = PF_ST_RT_IFNAME, .off = _OUT(rt_ifname), .cb = snl_attr_store_ifname }, 1894}; 1895static struct snl_field_parser fp_state[] = { 1896}; 1897#undef _IN 1898#undef _OUT 1899SNL_DECLARE_PARSER(state_parser, struct genlmsghdr, fp_state, ap_state); 1900 1901static const struct snl_hdr_parser *all_parsers[] = { 1902 &state_parser, &skey_parser, &speer_parser, 1903 &creator_parser, &getrules_parser 1904}; 1905 1906static int 1907pfctl_get_states_nl(struct pfctl_state_filter *filter, struct snl_state *ss, pfctl_get_state_fn f, void *arg) 1908{ 1909 SNL_VERIFY_PARSERS(all_parsers); 1910 int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME); 1911 int ret; 1912 1913 struct nlmsghdr *hdr; 1914 struct snl_writer nw; 1915 1916 if (family_id == 0) 1917 return (ENOTSUP); 1918 1919 snl_init_writer(ss, &nw); 1920 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETSTATES); 1921 hdr->nlmsg_flags |= NLM_F_DUMP; 1922 snl_add_msg_attr_string(&nw, PF_ST_IFNAME, filter->ifname); 1923 snl_add_msg_attr_u16(&nw, PF_ST_PROTO, filter->proto); 1924 snl_add_msg_attr_u8(&nw, PF_ST_AF, filter->af); 1925 snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_ADDR, &filter->addr.v6); 1926 snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_MASK, &filter->mask.v6); 1927 1928 hdr = snl_finalize_msg(&nw); 1929 if (hdr == NULL) 1930 return (ENOMEM); 1931 1932 uint32_t seq_id = hdr->nlmsg_seq; 1933 1934 snl_send_message(ss, hdr); 1935 1936 struct snl_errmsg_data e = {}; 1937 while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) { 1938 struct pfctl_state s; 1939 bzero(&s, sizeof(s)); 1940 if (!snl_parse_nlmsg(ss, hdr, &state_parser, &s)) 1941 continue; 1942 1943 s.key[1].af = s.key[0].af; 1944 s.key[1].proto = s.key[0].proto; 1945 1946 ret = f(&s, arg); 1947 if (ret != 0) 1948 return (ret); 1949 } 1950 1951 return (0); 1952} 1953 1954int 1955pfctl_get_states_iter(pfctl_get_state_fn f, void *arg) 1956{ 1957 struct pfctl_state_filter filter = {}; 1958 return (pfctl_get_filtered_states_iter(&filter, f, arg)); 1959} 1960 1961int 1962pfctl_get_filtered_states_iter(struct pfctl_state_filter *filter, pfctl_get_state_fn f, void *arg) 1963{ 1964 struct snl_state ss = {}; 1965 int error; 1966 1967 snl_init(&ss, NETLINK_GENERIC); 1968 error = pfctl_get_states_nl(filter, &ss, f, arg); 1969 snl_free(&ss); 1970 1971 return (error); 1972} 1973 1974static int 1975pfctl_append_states(struct pfctl_state *s, void *arg) 1976{ 1977 struct pfctl_state *new; 1978 struct pfctl_states *states = (struct pfctl_states *)arg; 1979 1980 new = malloc(sizeof(*s)); 1981 if (new == NULL) 1982 return (ENOMEM); 1983 1984 memcpy(new, s, sizeof(*s)); 1985 1986 TAILQ_INSERT_TAIL(&states->states, new, entry); 1987 1988 return (0); 1989} 1990 1991int 1992pfctl_get_states(int dev __unused, struct pfctl_states *states) 1993{ 1994 int ret; 1995 1996 bzero(states, sizeof(*states)); 1997 TAILQ_INIT(&states->states); 1998 1999 ret = pfctl_get_states_iter(pfctl_append_states, states); 2000 if (ret != 0) { 2001 pfctl_free_states(states); 2002 return (ret); 2003 } 2004 2005 return (0); 2006} 2007 2008void 2009pfctl_free_states(struct pfctl_states *states) 2010{ 2011 struct pfctl_state *s, *tmp; 2012 2013 TAILQ_FOREACH_SAFE(s, &states->states, entry, tmp) { 2014 free(s); 2015 } 2016 2017 bzero(states, sizeof(*states)); 2018} 2019 2020struct pfctl_nl_clear_states { 2021 uint32_t killed; 2022}; 2023#define _OUT(_field) offsetof(struct pfctl_nl_clear_states, _field) 2024static struct snl_attr_parser ap_clear_states[] = { 2025 { .type = PF_CS_KILLED, .off = _OUT(killed), .cb = snl_attr_get_uint32 }, 2026}; 2027static struct snl_field_parser fp_clear_states[] = {}; 2028#undef _OUT 2029SNL_DECLARE_PARSER(clear_states_parser, struct genlmsghdr, fp_clear_states, ap_clear_states); 2030 2031static int 2032_pfctl_clear_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill, 2033 unsigned int *killed, int cmd) 2034{ 2035 struct snl_writer nw; 2036 struct snl_errmsg_data e = {}; 2037 struct pfctl_nl_clear_states attrs = {}; 2038 struct nlmsghdr *hdr; 2039 uint32_t seq_id; 2040 int family_id; 2041 2042 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2043 if (family_id == 0) 2044 return (ENOTSUP); 2045 2046 snl_init_writer(&h->ss, &nw); 2047 hdr = snl_create_genl_msg_request(&nw, family_id, cmd); 2048 hdr->nlmsg_flags |= NLM_F_DUMP; 2049 2050 snl_add_msg_attr_u64(&nw, PF_CS_CMP_ID, kill->cmp.id); 2051 snl_add_msg_attr_u32(&nw, PF_CS_CMP_CREATORID, htonl(kill->cmp.creatorid)); 2052 snl_add_msg_attr_u8(&nw, PF_CS_CMP_DIR, kill->cmp.direction); 2053 snl_add_msg_attr_u8(&nw, PF_CS_AF, kill->af); 2054 snl_add_msg_attr_u8(&nw, PF_CS_PROTO, kill->proto); 2055 snl_add_msg_attr_rule_addr(&nw, PF_CS_SRC, &kill->src); 2056 snl_add_msg_attr_rule_addr(&nw, PF_CS_DST, &kill->dst); 2057 snl_add_msg_attr_rule_addr(&nw, PF_CS_RT_ADDR, &kill->rt_addr); 2058 snl_add_msg_attr_string(&nw, PF_CS_IFNAME, kill->ifname); 2059 snl_add_msg_attr_string(&nw, PF_CS_LABEL, kill->label); 2060 snl_add_msg_attr_bool(&nw, PF_CS_KILL_MATCH, kill->kill_match); 2061 snl_add_msg_attr_bool(&nw, PF_CS_NAT, kill->nat); 2062 2063 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2064 return (ENXIO); 2065 2066 seq_id = hdr->nlmsg_seq; 2067 2068 if (! snl_send_message(&h->ss, hdr)) 2069 return (ENXIO); 2070 2071 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2072 if (! snl_parse_nlmsg(&h->ss, hdr, &clear_states_parser, &attrs)) 2073 continue; 2074 } 2075 2076 if (killed) 2077 *killed = attrs.killed; 2078 2079 return (e.error); 2080} 2081 2082int 2083pfctl_clear_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill, 2084 unsigned int *killed) 2085{ 2086 return(_pfctl_clear_states_h(h, kill, killed, PFNL_CMD_CLRSTATES)); 2087} 2088 2089int 2090pfctl_kill_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill, 2091 unsigned int *killed) 2092{ 2093 return(_pfctl_clear_states_h(h, kill, killed, PFNL_CMD_KILLSTATES)); 2094} 2095 2096static int 2097_pfctl_clear_states(int dev __unused, const struct pfctl_kill *kill, 2098 unsigned int *killed, uint64_t cmd) 2099{ 2100 struct pfctl_handle *h; 2101 int ret; 2102 2103 h = pfctl_open(PF_DEVICE); 2104 if (h == NULL) 2105 return (ENODEV); 2106 2107 ret = _pfctl_clear_states_h(h, kill, killed, cmd); 2108 pfctl_close(h); 2109 2110 return (ret); 2111} 2112 2113int 2114pfctl_clear_states(int dev __unused, const struct pfctl_kill *kill, 2115 unsigned int *killed) 2116{ 2117 return (_pfctl_clear_states(dev, kill, killed, PFNL_CMD_CLRSTATES)); 2118} 2119 2120int 2121pfctl_kill_states(int dev __unused, const struct pfctl_kill *kill, unsigned int *killed) 2122{ 2123 return (_pfctl_clear_states(dev, kill, killed, PFNL_CMD_KILLSTATES)); 2124} 2125 2126int 2127pfctl_clear_rules(int dev, const char *anchorname) 2128{ 2129 struct pfioc_trans trans; 2130 struct pfioc_trans_e transe[2]; 2131 int ret; 2132 2133 bzero(&trans, sizeof(trans)); 2134 bzero(&transe, sizeof(transe)); 2135 2136 transe[0].rs_num = PF_RULESET_SCRUB; 2137 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor)) 2138 >= sizeof(transe[0].anchor)) 2139 return (E2BIG); 2140 2141 transe[1].rs_num = PF_RULESET_FILTER; 2142 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor)) 2143 >= sizeof(transe[1].anchor)) 2144 return (E2BIG); 2145 2146 trans.size = 2; 2147 trans.esize = sizeof(transe[0]); 2148 trans.array = transe; 2149 2150 ret = ioctl(dev, DIOCXBEGIN, &trans); 2151 if (ret != 0) 2152 return (ret); 2153 return ioctl(dev, DIOCXCOMMIT, &trans); 2154} 2155 2156int 2157pfctl_clear_nat(int dev, const char *anchorname) 2158{ 2159 struct pfioc_trans trans; 2160 struct pfioc_trans_e transe[3]; 2161 int ret; 2162 2163 bzero(&trans, sizeof(trans)); 2164 bzero(&transe, sizeof(transe)); 2165 2166 transe[0].rs_num = PF_RULESET_NAT; 2167 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor)) 2168 >= sizeof(transe[0].anchor)) 2169 return (E2BIG); 2170 2171 transe[1].rs_num = PF_RULESET_BINAT; 2172 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor)) 2173 >= sizeof(transe[0].anchor)) 2174 return (E2BIG); 2175 2176 transe[2].rs_num = PF_RULESET_RDR; 2177 if (strlcpy(transe[2].anchor, anchorname, sizeof(transe[2].anchor)) 2178 >= sizeof(transe[2].anchor)) 2179 return (E2BIG); 2180 2181 trans.size = 3; 2182 trans.esize = sizeof(transe[0]); 2183 trans.array = transe; 2184 2185 ret = ioctl(dev, DIOCXBEGIN, &trans); 2186 if (ret != 0) 2187 return (ret); 2188 return ioctl(dev, DIOCXCOMMIT, &trans); 2189} 2190int 2191pfctl_clear_eth_rules(int dev, const char *anchorname) 2192{ 2193 struct pfioc_trans trans; 2194 struct pfioc_trans_e transe; 2195 int ret; 2196 2197 bzero(&trans, sizeof(trans)); 2198 bzero(&transe, sizeof(transe)); 2199 2200 transe.rs_num = PF_RULESET_ETH; 2201 if (strlcpy(transe.anchor, anchorname, sizeof(transe.anchor)) 2202 >= sizeof(transe.anchor)) 2203 return (E2BIG); 2204 2205 trans.size = 1; 2206 trans.esize = sizeof(transe); 2207 trans.array = &transe; 2208 2209 ret = ioctl(dev, DIOCXBEGIN, &trans); 2210 if (ret != 0) 2211 return (ret); 2212 return ioctl(dev, DIOCXCOMMIT, &trans); 2213} 2214 2215static int 2216_pfctl_get_limit(int dev, const int index, uint *limit) 2217{ 2218 struct pfioc_limit pl; 2219 2220 bzero(&pl, sizeof(pl)); 2221 pl.index = index; 2222 2223 if (ioctl(dev, DIOCGETLIMIT, &pl) == -1) 2224 return (errno); 2225 2226 *limit = pl.limit; 2227 2228 return (0); 2229} 2230 2231int 2232pfctl_set_syncookies(int dev, const struct pfctl_syncookies *s) 2233{ 2234 struct pfioc_nv nv; 2235 nvlist_t *nvl; 2236 int ret; 2237 uint state_limit; 2238 uint64_t lim, hi, lo; 2239 2240 ret = _pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit); 2241 if (ret != 0) 2242 return (ret); 2243 2244 lim = state_limit; 2245 hi = lim * s->highwater / 100; 2246 lo = lim * s->lowwater / 100; 2247 2248 if (lo == hi) 2249 hi++; 2250 2251 nvl = nvlist_create(0); 2252 2253 nvlist_add_bool(nvl, "enabled", s->mode != PFCTL_SYNCOOKIES_NEVER); 2254 nvlist_add_bool(nvl, "adaptive", s->mode == PFCTL_SYNCOOKIES_ADAPTIVE); 2255 nvlist_add_number(nvl, "highwater", hi); 2256 nvlist_add_number(nvl, "lowwater", lo); 2257 2258 nv.data = nvlist_pack(nvl, &nv.len); 2259 nv.size = nv.len; 2260 nvlist_destroy(nvl); 2261 nvl = NULL; 2262 2263 ret = ioctl(dev, DIOCSETSYNCOOKIES, &nv); 2264 2265 free(nv.data); 2266 return (ret); 2267} 2268 2269int 2270pfctl_get_syncookies(int dev, struct pfctl_syncookies *s) 2271{ 2272 nvlist_t *nvl; 2273 int ret; 2274 uint state_limit; 2275 bool enabled, adaptive; 2276 2277 ret = _pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit); 2278 if (ret != 0) 2279 return (ret); 2280 2281 bzero(s, sizeof(*s)); 2282 2283 nvl = nvlist_create(0); 2284 2285 if ((ret = pfctl_do_ioctl(dev, DIOCGETSYNCOOKIES, 256, &nvl)) != 0) { 2286 ret = errno; 2287 goto out; 2288 } 2289 2290 enabled = nvlist_get_bool(nvl, "enabled"); 2291 adaptive = nvlist_get_bool(nvl, "adaptive"); 2292 2293 if (enabled) { 2294 if (adaptive) 2295 s->mode = PFCTL_SYNCOOKIES_ADAPTIVE; 2296 else 2297 s->mode = PFCTL_SYNCOOKIES_ALWAYS; 2298 } else { 2299 s->mode = PFCTL_SYNCOOKIES_NEVER; 2300 } 2301 2302 s->highwater = nvlist_get_number(nvl, "highwater") * 100 / state_limit; 2303 s->lowwater = nvlist_get_number(nvl, "lowwater") * 100 / state_limit; 2304 s->halfopen_states = nvlist_get_number(nvl, "halfopen_states"); 2305 2306out: 2307 nvlist_destroy(nvl); 2308 return (ret); 2309} 2310 2311int 2312pfctl_table_add_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 2313 *addr, int size, int *nadd, int flags) 2314{ 2315 struct pfioc_table io; 2316 2317 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 2318 return (EINVAL); 2319 } 2320 bzero(&io, sizeof io); 2321 io.pfrio_flags = flags; 2322 io.pfrio_table = *tbl; 2323 io.pfrio_buffer = addr; 2324 io.pfrio_esize = sizeof(*addr); 2325 io.pfrio_size = size; 2326 2327 if (ioctl(dev, DIOCRADDADDRS, &io)) 2328 return (errno); 2329 if (nadd != NULL) 2330 *nadd = io.pfrio_nadd; 2331 return (0); 2332} 2333 2334int 2335pfctl_table_del_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 2336 *addr, int size, int *ndel, int flags) 2337{ 2338 struct pfioc_table io; 2339 2340 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 2341 return (EINVAL); 2342 } 2343 bzero(&io, sizeof io); 2344 io.pfrio_flags = flags; 2345 io.pfrio_table = *tbl; 2346 io.pfrio_buffer = addr; 2347 io.pfrio_esize = sizeof(*addr); 2348 io.pfrio_size = size; 2349 2350 if (ioctl(dev, DIOCRDELADDRS, &io)) 2351 return (errno); 2352 if (ndel != NULL) 2353 *ndel = io.pfrio_ndel; 2354 return (0); 2355} 2356 2357int 2358pfctl_table_set_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 2359 *addr, int size, int *size2, int *nadd, int *ndel, int *nchange, int flags) 2360{ 2361 struct pfioc_table io; 2362 2363 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 2364 return (EINVAL); 2365 } 2366 bzero(&io, sizeof io); 2367 io.pfrio_flags = flags; 2368 io.pfrio_table = *tbl; 2369 io.pfrio_buffer = addr; 2370 io.pfrio_esize = sizeof(*addr); 2371 io.pfrio_size = size; 2372 io.pfrio_size2 = (size2 != NULL) ? *size2 : 0; 2373 if (ioctl(dev, DIOCRSETADDRS, &io)) 2374 return (-1); 2375 if (nadd != NULL) 2376 *nadd = io.pfrio_nadd; 2377 if (ndel != NULL) 2378 *ndel = io.pfrio_ndel; 2379 if (nchange != NULL) 2380 *nchange = io.pfrio_nchange; 2381 if (size2 != NULL) 2382 *size2 = io.pfrio_size2; 2383 return (0); 2384} 2385 2386int pfctl_table_get_addrs(int dev, struct pfr_table *tbl, struct pfr_addr *addr, 2387 int *size, int flags) 2388{ 2389 struct pfioc_table io; 2390 2391 if (tbl == NULL || size == NULL || *size < 0 || 2392 (*size && addr == NULL)) { 2393 return (EINVAL); 2394 } 2395 bzero(&io, sizeof io); 2396 io.pfrio_flags = flags; 2397 io.pfrio_table = *tbl; 2398 io.pfrio_buffer = addr; 2399 io.pfrio_esize = sizeof(*addr); 2400 io.pfrio_size = *size; 2401 if (ioctl(dev, DIOCRGETADDRS, &io)) 2402 return (-1); 2403 *size = io.pfrio_size; 2404 return (0); 2405} 2406 2407int 2408pfctl_set_statusif(struct pfctl_handle *h, const char *ifname) 2409{ 2410 struct snl_writer nw; 2411 struct snl_errmsg_data e = {}; 2412 struct nlmsghdr *hdr; 2413 uint32_t seq_id; 2414 int family_id; 2415 2416 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2417 if (family_id == 0) 2418 return (ENOTSUP); 2419 2420 snl_init_writer(&h->ss, &nw); 2421 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_STATUSIF); 2422 2423 snl_add_msg_attr_string(&nw, PF_SS_IFNAME, ifname); 2424 2425 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2426 return (ENXIO); 2427 2428 seq_id = hdr->nlmsg_seq; 2429 2430 if (! snl_send_message(&h->ss, hdr)) 2431 return (ENXIO); 2432 2433 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2434 } 2435 2436 return (e.error); 2437} 2438 2439#define _IN(_field) offsetof(struct genlmsghdr, _field) 2440#define _OUT(_field) offsetof(struct pfctl_natlook, _field) 2441static struct snl_attr_parser ap_natlook[] = { 2442 { .type = PF_NL_SRC_ADDR, .off = _OUT(saddr), .cb = snl_attr_get_in6_addr }, 2443 { .type = PF_NL_DST_ADDR, .off = _OUT(daddr), .cb = snl_attr_get_in6_addr }, 2444 { .type = PF_NL_SRC_PORT, .off = _OUT(sport), .cb = snl_attr_get_uint16 }, 2445 { .type = PF_NL_DST_PORT, .off = _OUT(dport), .cb = snl_attr_get_uint16 }, 2446}; 2447static struct snl_field_parser fp_natlook[] = {}; 2448#undef _IN 2449#undef _OUT 2450SNL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, fp_natlook, ap_natlook); 2451 2452int 2453pfctl_natlook(struct pfctl_handle *h, const struct pfctl_natlook_key *k, 2454 struct pfctl_natlook *r) 2455{ 2456 struct snl_writer nw; 2457 struct snl_errmsg_data e = {}; 2458 struct nlmsghdr *hdr; 2459 uint32_t seq_id; 2460 int family_id; 2461 2462 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2463 if (family_id == 0) 2464 return (ENOTSUP); 2465 2466 snl_init_writer(&h->ss, &nw); 2467 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_NATLOOK); 2468 hdr->nlmsg_flags |= NLM_F_DUMP; 2469 2470 snl_add_msg_attr_u8(&nw, PF_NL_AF, k->af); 2471 snl_add_msg_attr_u8(&nw, PF_NL_DIRECTION, k->direction); 2472 snl_add_msg_attr_u8(&nw, PF_NL_PROTO, k->proto); 2473 snl_add_msg_attr_ip6(&nw, PF_NL_SRC_ADDR, &k->saddr.v6); 2474 snl_add_msg_attr_ip6(&nw, PF_NL_DST_ADDR, &k->daddr.v6); 2475 snl_add_msg_attr_u16(&nw, PF_NL_SRC_PORT, k->sport); 2476 snl_add_msg_attr_u16(&nw, PF_NL_DST_PORT, k->dport); 2477 2478 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2479 return (ENXIO); 2480 2481 seq_id = hdr->nlmsg_seq; 2482 2483 if (! snl_send_message(&h->ss, hdr)) 2484 return (ENXIO); 2485 2486 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2487 if (! snl_parse_nlmsg(&h->ss, hdr, &natlook_parser, r)) 2488 continue; 2489 } 2490 2491 return (e.error); 2492} 2493 2494int 2495pfctl_set_debug(struct pfctl_handle *h, uint32_t level) 2496{ 2497 struct snl_writer nw; 2498 struct snl_errmsg_data e = {}; 2499 struct nlmsghdr *hdr; 2500 uint32_t seq_id; 2501 int family_id; 2502 2503 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2504 if (family_id == 0) 2505 return (ENOTSUP); 2506 2507 snl_init_writer(&h->ss, &nw); 2508 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_DEBUG); 2509 2510 snl_add_msg_attr_u32(&nw, PF_SD_LEVEL, level); 2511 2512 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2513 return (ENXIO); 2514 2515 seq_id = hdr->nlmsg_seq; 2516 2517 if (! snl_send_message(&h->ss, hdr)) 2518 return (ENXIO); 2519 2520 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2521 } 2522 2523 return (e.error); 2524} 2525 2526int 2527pfctl_set_timeout(struct pfctl_handle *h, uint32_t timeout, uint32_t seconds) 2528{ 2529 struct snl_writer nw; 2530 struct snl_errmsg_data e = {}; 2531 struct nlmsghdr *hdr; 2532 uint32_t seq_id; 2533 int family_id; 2534 2535 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2536 if (family_id == 0) 2537 return (ENOTSUP); 2538 2539 snl_init_writer(&h->ss, &nw); 2540 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_TIMEOUT); 2541 2542 snl_add_msg_attr_u32(&nw, PF_TO_TIMEOUT, timeout); 2543 snl_add_msg_attr_u32(&nw, PF_TO_SECONDS, seconds); 2544 2545 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2546 return (ENXIO); 2547 2548 seq_id = hdr->nlmsg_seq; 2549 2550 if (! snl_send_message(&h->ss, hdr)) 2551 return (ENXIO); 2552 2553 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2554 } 2555 2556 return (e.error); 2557} 2558 2559struct pfctl_nl_timeout { 2560 uint32_t seconds; 2561}; 2562#define _OUT(_field) offsetof(struct pfctl_nl_timeout, _field) 2563static struct snl_attr_parser ap_get_timeout[] = { 2564 { .type = PF_TO_SECONDS, .off = _OUT(seconds), .cb = snl_attr_get_uint32 }, 2565}; 2566static struct snl_field_parser fp_get_timeout[] = {}; 2567#undef _OUT 2568SNL_DECLARE_PARSER(get_timeout_parser, struct genlmsghdr, fp_get_timeout, ap_get_timeout); 2569 2570int 2571pfctl_get_timeout(struct pfctl_handle *h, uint32_t timeout, uint32_t *seconds) 2572{ 2573 struct snl_writer nw; 2574 struct pfctl_nl_timeout to = {}; 2575 struct snl_errmsg_data e = {}; 2576 struct nlmsghdr *hdr; 2577 uint32_t seq_id; 2578 int family_id; 2579 2580 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2581 if (family_id == 0) 2582 return (ENOTSUP); 2583 2584 snl_init_writer(&h->ss, &nw); 2585 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_TIMEOUT); 2586 hdr->nlmsg_flags |= NLM_F_DUMP; 2587 2588 snl_add_msg_attr_u32(&nw, PF_TO_TIMEOUT, timeout); 2589 2590 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2591 return (ENXIO); 2592 2593 seq_id = hdr->nlmsg_seq; 2594 2595 if (! snl_send_message(&h->ss, hdr)) 2596 return (ENXIO); 2597 2598 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2599 if (! snl_parse_nlmsg(&h->ss, hdr, &get_timeout_parser, &to)) 2600 continue; 2601 } 2602 2603 if (seconds != NULL) 2604 *seconds = to.seconds; 2605 2606 return (e.error); 2607} 2608 2609int 2610pfctl_set_limit(struct pfctl_handle *h, const int index, const uint limit) 2611{ 2612 struct snl_writer nw; 2613 struct snl_errmsg_data e = {}; 2614 struct nlmsghdr *hdr; 2615 uint32_t seq_id; 2616 int family_id; 2617 2618 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2619 if (family_id == 0) 2620 return (ENOTSUP); 2621 2622 snl_init_writer(&h->ss, &nw); 2623 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_LIMIT); 2624 2625 snl_add_msg_attr_u32(&nw, PF_LI_INDEX, index); 2626 snl_add_msg_attr_u32(&nw, PF_LI_LIMIT, limit); 2627 2628 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2629 return (ENXIO); 2630 2631 seq_id = hdr->nlmsg_seq; 2632 2633 if (! snl_send_message(&h->ss, hdr)) 2634 return (ENXIO); 2635 2636 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2637 } 2638 2639 return (e.error); 2640} 2641 2642struct pfctl_nl_limit { 2643 unsigned int limit; 2644}; 2645#define _OUT(_field) offsetof(struct pfctl_nl_limit, _field) 2646static struct snl_attr_parser ap_get_limit[] = { 2647 { .type = PF_LI_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 }, 2648}; 2649static struct snl_field_parser fp_get_limit[] = {}; 2650#undef _OUT 2651SNL_DECLARE_PARSER(get_limit_parser, struct genlmsghdr, fp_get_limit, ap_get_limit); 2652 2653int 2654pfctl_get_limit(struct pfctl_handle *h, const int index, uint *limit) 2655{ 2656 struct snl_writer nw; 2657 struct pfctl_nl_limit li = {}; 2658 struct snl_errmsg_data e = {}; 2659 struct nlmsghdr *hdr; 2660 uint32_t seq_id; 2661 int family_id; 2662 2663 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2664 if (family_id == 0) 2665 return (ENOTSUP); 2666 2667 snl_init_writer(&h->ss, &nw); 2668 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_LIMIT); 2669 hdr->nlmsg_flags |= NLM_F_DUMP; 2670 2671 snl_add_msg_attr_u32(&nw, PF_LI_INDEX, index); 2672 2673 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2674 return (ENXIO); 2675 2676 seq_id = hdr->nlmsg_seq; 2677 2678 if (! snl_send_message(&h->ss, hdr)) 2679 return (ENXIO); 2680 2681 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2682 if (! snl_parse_nlmsg(&h->ss, hdr, &get_limit_parser, &li)) 2683 continue; 2684 } 2685 2686 if (limit != NULL) 2687 *limit = li.limit; 2688 2689 return (e.error); 2690} 2691 2692struct pfctl_nl_begin_addrs { 2693 uint32_t ticket; 2694}; 2695#define _OUT(_field) offsetof(struct pfctl_nl_begin_addrs, _field) 2696static struct snl_attr_parser ap_begin_addrs[] = { 2697 { .type = PF_BA_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 }, 2698}; 2699static struct snl_field_parser fp_begin_addrs[] = {}; 2700#undef _OUT 2701SNL_DECLARE_PARSER(begin_addrs_parser, struct genlmsghdr, fp_begin_addrs, ap_begin_addrs); 2702 2703int 2704pfctl_begin_addrs(struct pfctl_handle *h, uint32_t *ticket) 2705{ 2706 struct snl_writer nw; 2707 struct pfctl_nl_begin_addrs attrs = {}; 2708 struct snl_errmsg_data e = {}; 2709 struct nlmsghdr *hdr; 2710 uint32_t seq_id; 2711 int family_id; 2712 2713 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2714 if (family_id == 0) 2715 return (ENOTSUP); 2716 2717 snl_init_writer(&h->ss, &nw); 2718 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_BEGIN_ADDRS); 2719 hdr->nlmsg_flags |= NLM_F_DUMP; 2720 2721 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2722 return (ENXIO); 2723 2724 seq_id = hdr->nlmsg_seq; 2725 2726 if (! snl_send_message(&h->ss, hdr)) 2727 return (ENXIO); 2728 2729 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2730 if (! snl_parse_nlmsg(&h->ss, hdr, &begin_addrs_parser, &attrs)) 2731 continue; 2732 } 2733 2734 if (ticket != NULL) 2735 *ticket = attrs.ticket; 2736 2737 return (e.error); 2738} 2739 2740