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 59 struct pfctl_handle { 60 int fd; 61 struct snl_state ss; 62 }; 63 64 const char* PFCTL_SYNCOOKIES_MODE_NAMES[] = { 65 "never", 66 "always", 67 "adaptive" 68 }; 69 70 static int _pfctl_clear_states(int , const struct pfctl_kill *, 71 unsigned int *, uint64_t); 72 73 struct pfctl_handle * 74 pfctl_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); 89 error: 90 close(h->fd); 91 snl_free(&h->ss); 92 free(h); 93 94 return (NULL); 95 } 96 97 void 98 pfctl_close(struct pfctl_handle *h) 99 { 100 close(h->fd); 101 snl_free(&h->ss); 102 free(h); 103 } 104 105 int 106 pfctl_fd(struct pfctl_handle *h) 107 { 108 return (h->fd); 109 } 110 111 static int 112 pfctl_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 } 139 140 static int 141 pfctl_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; 151 152 retry: 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 } 183 184 out: 185 free(data); 186 free(nv.data); 187 188 return (ret); 189 } 190 191 static void 192 pf_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 } 207 208 static void 209 pf_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 } 224 225 static void 226 pf_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 } 240 241 static void 242 pf_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 } 257 258 int 259 pfctl_startstop(struct pfctl_handle *h, int start) 260 { 261 return (pfctl_do_netlink_cmd(h, start ? PFNL_CMD_START : PFNL_CMD_STOP)); 262 } 263 264 static 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) 296 static 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 }; 301 SNL_DECLARE_ATTR_PARSER(counter_parser, ap_counter); 302 #undef _OUT 303 304 static bool 305 snl_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 } 328 329 struct snl_uint64_array { 330 uint64_t *array; 331 size_t count; 332 size_t max; 333 }; 334 static bool 335 snl_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 } 353 354 static const struct snl_attr_parser ap_array[] = { 355 { .cb = snl_attr_get_uint64_element }, 356 }; 357 SNL_DECLARE_ATTR_PARSER(array_parser, ap_array); 358 static bool 359 snl_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) 377 static 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 }; 395 SNL_DECLARE_PARSER(getstatus_parser, struct genlmsghdr, snl_f_p_empty, ap_getstatus); 396 #undef _OUT 397 398 struct pfctl_status * 399 pfctl_get_status_h(struct pfctl_handle *h) 400 { 401 struct pfctl_status *status; 402 struct snl_errmsg_data e = {}; 403 struct nlmsghdr *hdr; 404 struct snl_writer nw; 405 uint32_t seq_id; 406 int family_id; 407 408 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 409 if (family_id == 0) 410 return (NULL); 411 412 snl_init_writer(&h->ss, &nw); 413 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_STATUS); 414 hdr->nlmsg_flags |= NLM_F_DUMP; 415 416 hdr = snl_finalize_msg(&nw); 417 if (hdr == NULL) { 418 return (NULL); 419 } 420 421 seq_id = hdr->nlmsg_seq; 422 if (! snl_send_message(&h->ss, hdr)) 423 return (NULL); 424 425 status = calloc(1, sizeof(*status)); 426 if (status == NULL) 427 return (NULL); 428 TAILQ_INIT(&status->counters); 429 TAILQ_INIT(&status->lcounters); 430 TAILQ_INIT(&status->fcounters); 431 TAILQ_INIT(&status->scounters); 432 433 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 434 if (! snl_parse_nlmsg(&h->ss, hdr, &getstatus_parser, status)) 435 continue; 436 } 437 438 return (status); 439 } 440 441 struct pfctl_status * 442 pfctl_get_status(int dev) 443 { 444 struct pfctl_status *status; 445 nvlist_t *nvl; 446 size_t len; 447 const void *chksum; 448 449 status = calloc(1, sizeof(*status)); 450 if (status == NULL) 451 return (NULL); 452 453 nvl = nvlist_create(0); 454 455 if (pfctl_do_ioctl(dev, DIOCGETSTATUSNV, 4096, &nvl)) { 456 nvlist_destroy(nvl); 457 free(status); 458 return (NULL); 459 } 460 461 status->running = nvlist_get_bool(nvl, "running"); 462 status->since = nvlist_get_number(nvl, "since"); 463 status->debug = nvlist_get_number(nvl, "debug"); 464 status->hostid = ntohl(nvlist_get_number(nvl, "hostid")); 465 status->states = nvlist_get_number(nvl, "states"); 466 status->src_nodes = nvlist_get_number(nvl, "src_nodes"); 467 status->syncookies_active = nvlist_get_bool(nvl, "syncookies_active"); 468 status->reass = nvlist_get_number(nvl, "reass"); 469 470 strlcpy(status->ifname, nvlist_get_string(nvl, "ifname"), 471 IFNAMSIZ); 472 chksum = nvlist_get_binary(nvl, "chksum", &len); 473 assert(len == PF_MD5_DIGEST_LENGTH); 474 memcpy(status->pf_chksum, chksum, len); 475 476 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "counters"), 477 &status->counters); 478 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "lcounters"), 479 &status->lcounters); 480 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "fcounters"), 481 &status->fcounters); 482 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "scounters"), 483 &status->scounters); 484 485 pf_nvuint_64_array(nvl, "pcounters", 2 * 2 * 2, 486 (uint64_t *)status->pcounters, NULL); 487 pf_nvuint_64_array(nvl, "bcounters", 2 * 2, 488 (uint64_t *)status->bcounters, NULL); 489 490 nvlist_destroy(nvl); 491 492 return (status); 493 } 494 int 495 pfctl_clear_status(struct pfctl_handle *h) 496 { 497 return (pfctl_do_netlink_cmd(h, PFNL_CMD_CLEAR_STATUS)); 498 } 499 500 static uint64_t 501 _pfctl_status_counter(struct pfctl_status_counters *counters, uint64_t id) 502 { 503 struct pfctl_status_counter *c; 504 505 TAILQ_FOREACH(c, counters, entry) { 506 if (c->id == id) 507 return (c->counter); 508 } 509 510 return (0); 511 } 512 513 uint64_t 514 pfctl_status_counter(struct pfctl_status *status, int id) 515 { 516 return (_pfctl_status_counter(&status->counters, id)); 517 } 518 519 uint64_t 520 pfctl_status_lcounter(struct pfctl_status *status, int id) 521 { 522 return (_pfctl_status_counter(&status->lcounters, id)); 523 } 524 525 uint64_t 526 pfctl_status_fcounter(struct pfctl_status *status, int id) 527 { 528 return (_pfctl_status_counter(&status->fcounters, id)); 529 } 530 531 uint64_t 532 pfctl_status_scounter(struct pfctl_status *status, int id) 533 { 534 return (_pfctl_status_counter(&status->scounters, id)); 535 } 536 537 void 538 pfctl_free_status(struct pfctl_status *status) 539 { 540 struct pfctl_status_counter *c, *tmp; 541 542 if (status == NULL) 543 return; 544 545 TAILQ_FOREACH_SAFE(c, &status->counters, entry, tmp) { 546 free(c->name); 547 free(c); 548 } 549 TAILQ_FOREACH_SAFE(c, &status->lcounters, entry, tmp) { 550 free(c->name); 551 free(c); 552 } 553 TAILQ_FOREACH_SAFE(c, &status->fcounters, entry, tmp) { 554 free(c->name); 555 free(c); 556 } 557 TAILQ_FOREACH_SAFE(c, &status->scounters, entry, tmp) { 558 free(c->name); 559 free(c); 560 } 561 562 free(status); 563 } 564 565 static void 566 pfctl_nv_add_addr(nvlist_t *nvparent, const char *name, 567 const struct pf_addr *addr) 568 { 569 nvlist_t *nvl = nvlist_create(0); 570 571 nvlist_add_binary(nvl, "addr", addr, sizeof(*addr)); 572 573 nvlist_add_nvlist(nvparent, name, nvl); 574 nvlist_destroy(nvl); 575 } 576 577 static void 578 pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *addr) 579 { 580 size_t len; 581 const void *data; 582 583 data = nvlist_get_binary(nvl, "addr", &len); 584 assert(len == sizeof(struct pf_addr)); 585 memcpy(addr, data, len); 586 } 587 588 static void 589 pfctl_nv_add_addr_wrap(nvlist_t *nvparent, const char *name, 590 const struct pf_addr_wrap *addr) 591 { 592 nvlist_t *nvl = nvlist_create(0); 593 594 nvlist_add_number(nvl, "type", addr->type); 595 nvlist_add_number(nvl, "iflags", addr->iflags); 596 if (addr->type == PF_ADDR_DYNIFTL) 597 nvlist_add_string(nvl, "ifname", addr->v.ifname); 598 if (addr->type == PF_ADDR_TABLE) 599 nvlist_add_string(nvl, "tblname", addr->v.tblname); 600 pfctl_nv_add_addr(nvl, "addr", &addr->v.a.addr); 601 pfctl_nv_add_addr(nvl, "mask", &addr->v.a.mask); 602 603 nvlist_add_nvlist(nvparent, name, nvl); 604 nvlist_destroy(nvl); 605 } 606 607 static void 608 pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr) 609 { 610 bzero(addr, sizeof(*addr)); 611 612 addr->type = nvlist_get_number(nvl, "type"); 613 addr->iflags = nvlist_get_number(nvl, "iflags"); 614 if (addr->type == PF_ADDR_DYNIFTL) { 615 strlcpy(addr->v.ifname, nvlist_get_string(nvl, "ifname"), 616 IFNAMSIZ); 617 addr->p.dyncnt = nvlist_get_number(nvl, "dyncnt"); 618 } 619 if (addr->type == PF_ADDR_TABLE) { 620 strlcpy(addr->v.tblname, nvlist_get_string(nvl, "tblname"), 621 PF_TABLE_NAME_SIZE); 622 addr->p.tblcnt = nvlist_get_number(nvl, "tblcnt"); 623 } 624 625 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &addr->v.a.addr); 626 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), &addr->v.a.mask); 627 } 628 629 static void 630 pfctl_nv_add_rule_addr(nvlist_t *nvparent, const char *name, 631 const struct pf_rule_addr *addr) 632 { 633 uint64_t ports[2]; 634 nvlist_t *nvl = nvlist_create(0); 635 636 pfctl_nv_add_addr_wrap(nvl, "addr", &addr->addr); 637 ports[0] = addr->port[0]; 638 ports[1] = addr->port[1]; 639 nvlist_add_number_array(nvl, "port", ports, 2); 640 nvlist_add_number(nvl, "neg", addr->neg); 641 nvlist_add_number(nvl, "port_op", addr->port_op); 642 643 nvlist_add_nvlist(nvparent, name, nvl); 644 nvlist_destroy(nvl); 645 } 646 647 static void 648 pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr) 649 { 650 pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), &addr->addr); 651 652 pf_nvuint_16_array(nvl, "port", 2, addr->port, NULL); 653 addr->neg = nvlist_get_number(nvl, "neg"); 654 addr->port_op = nvlist_get_number(nvl, "port_op"); 655 } 656 657 static void 658 pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape) 659 { 660 mape->offset = nvlist_get_number(nvl, "offset"); 661 mape->psidlen = nvlist_get_number(nvl, "psidlen"); 662 mape->psid = nvlist_get_number(nvl, "psid"); 663 } 664 665 static void 666 pf_nvpool_to_pool(const nvlist_t *nvl, struct pfctl_pool *pool) 667 { 668 size_t len; 669 const void *data; 670 671 data = nvlist_get_binary(nvl, "key", &len); 672 assert(len == sizeof(pool->key)); 673 memcpy(&pool->key, data, len); 674 675 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), &pool->counter); 676 677 pool->tblidx = nvlist_get_number(nvl, "tblidx"); 678 pf_nvuint_16_array(nvl, "proxy_port", 2, pool->proxy_port, NULL); 679 pool->opts = nvlist_get_number(nvl, "opts"); 680 681 if (nvlist_exists_nvlist(nvl, "mape")) 682 pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), &pool->mape); 683 } 684 685 static void 686 pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid) 687 { 688 pf_nvuint_32_array(nvl, "uid", 2, uid->uid, NULL); 689 uid->op = nvlist_get_number(nvl, "op"); 690 } 691 692 static void 693 pf_nvdivert_to_divert(const nvlist_t *nvl, struct pfctl_rule *rule) 694 { 695 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &rule->divert.addr); 696 rule->divert.port = nvlist_get_number(nvl, "port"); 697 } 698 699 static void 700 pf_nvrule_to_rule(const nvlist_t *nvl, struct pfctl_rule *rule) 701 { 702 const uint64_t *skip; 703 const char *const *labels; 704 size_t skipcount, labelcount; 705 706 rule->nr = nvlist_get_number(nvl, "nr"); 707 708 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &rule->src); 709 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &rule->dst); 710 711 skip = nvlist_get_number_array(nvl, "skip", &skipcount); 712 assert(skip); 713 assert(skipcount == PF_SKIP_COUNT); 714 for (int i = 0; i < PF_SKIP_COUNT; i++) 715 rule->skip[i].nr = skip[i]; 716 717 labels = nvlist_get_string_array(nvl, "labels", &labelcount); 718 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT); 719 for (size_t i = 0; i < labelcount; i++) 720 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE); 721 rule->ridentifier = nvlist_get_number(nvl, "ridentifier"); 722 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ); 723 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE); 724 strlcpy(rule->pqname, nvlist_get_string(nvl, "pqname"), PF_QNAME_SIZE); 725 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"), 726 PF_TAG_NAME_SIZE); 727 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"), 728 PF_TAG_NAME_SIZE); 729 730 strlcpy(rule->overload_tblname, nvlist_get_string(nvl, "overload_tblname"), 731 PF_TABLE_NAME_SIZE); 732 733 pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), &rule->rdr); 734 735 rule->evaluations = nvlist_get_number(nvl, "evaluations"); 736 pf_nvuint_64_array(nvl, "packets", 2, rule->packets, NULL); 737 pf_nvuint_64_array(nvl, "bytes", 2, rule->bytes, NULL); 738 739 if (nvlist_exists_number(nvl, "timestamp")) { 740 rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp"); 741 } 742 743 rule->os_fingerprint = nvlist_get_number(nvl, "os_fingerprint"); 744 745 rule->rtableid = nvlist_get_number(nvl, "rtableid"); 746 pf_nvuint_32_array(nvl, "timeout", PFTM_MAX, rule->timeout, NULL); 747 rule->max_states = nvlist_get_number(nvl, "max_states"); 748 rule->max_src_nodes = nvlist_get_number(nvl, "max_src_nodes"); 749 rule->max_src_states = nvlist_get_number(nvl, "max_src_states"); 750 rule->max_src_conn = nvlist_get_number(nvl, "max_src_conn"); 751 rule->max_src_conn_rate.limit = 752 nvlist_get_number(nvl, "max_src_conn_rate.limit"); 753 rule->max_src_conn_rate.seconds = 754 nvlist_get_number(nvl, "max_src_conn_rate.seconds"); 755 rule->qid = nvlist_get_number(nvl, "qid"); 756 rule->pqid = nvlist_get_number(nvl, "pqid"); 757 rule->dnpipe = nvlist_get_number(nvl, "dnpipe"); 758 rule->dnrpipe = nvlist_get_number(nvl, "dnrpipe"); 759 rule->free_flags = nvlist_get_number(nvl, "dnflags"); 760 rule->prob = nvlist_get_number(nvl, "prob"); 761 rule->cuid = nvlist_get_number(nvl, "cuid"); 762 rule->cpid = nvlist_get_number(nvl, "cpid"); 763 764 rule->return_icmp = nvlist_get_number(nvl, "return_icmp"); 765 rule->return_icmp6 = nvlist_get_number(nvl, "return_icmp6"); 766 rule->max_mss = nvlist_get_number(nvl, "max_mss"); 767 rule->scrub_flags = nvlist_get_number(nvl, "scrub_flags"); 768 769 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), &rule->uid); 770 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "gid"), 771 (struct pf_rule_uid *)&rule->gid); 772 773 rule->rule_flag = nvlist_get_number(nvl, "rule_flag"); 774 rule->action = nvlist_get_number(nvl, "action"); 775 rule->direction = nvlist_get_number(nvl, "direction"); 776 rule->log = nvlist_get_number(nvl, "log"); 777 rule->logif = nvlist_get_number(nvl, "logif"); 778 rule->quick = nvlist_get_number(nvl, "quick"); 779 rule->ifnot = nvlist_get_number(nvl, "ifnot"); 780 rule->match_tag_not = nvlist_get_number(nvl, "match_tag_not"); 781 rule->natpass = nvlist_get_number(nvl, "natpass"); 782 783 rule->keep_state = nvlist_get_number(nvl, "keep_state"); 784 rule->af = nvlist_get_number(nvl, "af"); 785 rule->proto = nvlist_get_number(nvl, "proto"); 786 rule->type = nvlist_get_number(nvl, "type"); 787 rule->code = nvlist_get_number(nvl, "code"); 788 rule->flags = nvlist_get_number(nvl, "flags"); 789 rule->flagset = nvlist_get_number(nvl, "flagset"); 790 rule->min_ttl = nvlist_get_number(nvl, "min_ttl"); 791 rule->allow_opts = nvlist_get_number(nvl, "allow_opts"); 792 rule->rt = nvlist_get_number(nvl, "rt"); 793 rule->return_ttl = nvlist_get_number(nvl, "return_ttl"); 794 rule->tos = nvlist_get_number(nvl, "tos"); 795 rule->set_tos = nvlist_get_number(nvl, "set_tos"); 796 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative"); 797 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard"); 798 799 rule->flush = nvlist_get_number(nvl, "flush"); 800 rule->prio = nvlist_get_number(nvl, "prio"); 801 pf_nvuint_8_array(nvl, "set_prio", 2, rule->set_prio, NULL); 802 803 pf_nvdivert_to_divert(nvlist_get_nvlist(nvl, "divert"), rule); 804 805 rule->states_cur = nvlist_get_number(nvl, "states_cur"); 806 rule->states_tot = nvlist_get_number(nvl, "states_tot"); 807 rule->src_nodes = nvlist_get_number(nvl, "src_nodes"); 808 } 809 810 static void 811 pfctl_nveth_addr_to_eth_addr(const nvlist_t *nvl, struct pfctl_eth_addr *addr) 812 { 813 static const u_int8_t EMPTY_MAC[ETHER_ADDR_LEN] = { 0 }; 814 size_t len; 815 const void *data; 816 817 data = nvlist_get_binary(nvl, "addr", &len); 818 assert(len == sizeof(addr->addr)); 819 memcpy(addr->addr, data, sizeof(addr->addr)); 820 821 data = nvlist_get_binary(nvl, "mask", &len); 822 assert(len == sizeof(addr->mask)); 823 memcpy(addr->mask, data, sizeof(addr->mask)); 824 825 addr->neg = nvlist_get_bool(nvl, "neg"); 826 827 /* To make checks for 'is this address set?' easier. */ 828 addr->isset = memcmp(addr->addr, EMPTY_MAC, ETHER_ADDR_LEN) != 0; 829 } 830 831 static nvlist_t * 832 pfctl_eth_addr_to_nveth_addr(const struct pfctl_eth_addr *addr) 833 { 834 nvlist_t *nvl; 835 836 nvl = nvlist_create(0); 837 if (nvl == NULL) 838 return (NULL); 839 840 nvlist_add_bool(nvl, "neg", addr->neg); 841 nvlist_add_binary(nvl, "addr", &addr->addr, ETHER_ADDR_LEN); 842 nvlist_add_binary(nvl, "mask", &addr->mask, ETHER_ADDR_LEN); 843 844 return (nvl); 845 } 846 847 static void 848 pfctl_nveth_rule_to_eth_rule(const nvlist_t *nvl, struct pfctl_eth_rule *rule) 849 { 850 const char *const *labels; 851 size_t labelcount, i; 852 853 rule->nr = nvlist_get_number(nvl, "nr"); 854 rule->quick = nvlist_get_bool(nvl, "quick"); 855 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ); 856 rule->ifnot = nvlist_get_bool(nvl, "ifnot"); 857 rule->direction = nvlist_get_number(nvl, "direction"); 858 rule->proto = nvlist_get_number(nvl, "proto"); 859 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"), 860 PF_TAG_NAME_SIZE); 861 rule->match_tag = nvlist_get_number(nvl, "match_tag"); 862 rule->match_tag_not = nvlist_get_bool(nvl, "match_tag_not"); 863 864 labels = nvlist_get_string_array(nvl, "labels", &labelcount); 865 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT); 866 for (i = 0; i < labelcount; i++) 867 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE); 868 rule->ridentifier = nvlist_get_number(nvl, "ridentifier"); 869 870 pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "src"), 871 &rule->src); 872 pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "dst"), 873 &rule->dst); 874 875 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipsrc"), 876 &rule->ipsrc); 877 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipdst"), 878 &rule->ipdst); 879 880 rule->evaluations = nvlist_get_number(nvl, "evaluations"); 881 rule->packets[0] = nvlist_get_number(nvl, "packets-in"); 882 rule->packets[1] = nvlist_get_number(nvl, "packets-out"); 883 rule->bytes[0] = nvlist_get_number(nvl, "bytes-in"); 884 rule->bytes[1] = nvlist_get_number(nvl, "bytes-out"); 885 886 if (nvlist_exists_number(nvl, "timestamp")) { 887 rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp"); 888 } 889 890 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE); 891 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"), 892 PF_TAG_NAME_SIZE); 893 894 rule->dnpipe = nvlist_get_number(nvl, "dnpipe"); 895 rule->dnflags = nvlist_get_number(nvl, "dnflags"); 896 897 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative"); 898 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard"); 899 900 strlcpy(rule->bridge_to, nvlist_get_string(nvl, "bridge_to"), 901 IFNAMSIZ); 902 903 rule->action = nvlist_get_number(nvl, "action"); 904 } 905 906 int 907 pfctl_get_eth_rulesets_info(int dev, struct pfctl_eth_rulesets_info *ri, 908 const char *path) 909 { 910 nvlist_t *nvl; 911 int ret; 912 913 bzero(ri, sizeof(*ri)); 914 915 nvl = nvlist_create(0); 916 nvlist_add_string(nvl, "path", path); 917 918 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESETS, 256, &nvl)) != 0) 919 goto out; 920 921 ri->nr = nvlist_get_number(nvl, "nr"); 922 923 out: 924 nvlist_destroy(nvl); 925 return (ret); 926 } 927 928 int 929 pfctl_get_eth_ruleset(int dev, const char *path, int nr, 930 struct pfctl_eth_ruleset_info *ri) 931 { 932 nvlist_t *nvl; 933 int ret; 934 935 bzero(ri, sizeof(*ri)); 936 937 nvl = nvlist_create(0); 938 nvlist_add_string(nvl, "path", path); 939 nvlist_add_number(nvl, "nr", nr); 940 941 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESET, 1024, &nvl)) != 0) 942 goto out; 943 944 ri->nr = nvlist_get_number(nvl, "nr"); 945 strlcpy(ri->path, nvlist_get_string(nvl, "path"), MAXPATHLEN); 946 strlcpy(ri->name, nvlist_get_string(nvl, "name"), 947 PF_ANCHOR_NAME_SIZE); 948 949 out: 950 nvlist_destroy(nvl); 951 return (ret); 952 } 953 954 int 955 pfctl_get_eth_rules_info(int dev, struct pfctl_eth_rules_info *rules, 956 const char *path) 957 { 958 nvlist_t *nvl; 959 int ret; 960 961 bzero(rules, sizeof(*rules)); 962 963 nvl = nvlist_create(0); 964 nvlist_add_string(nvl, "anchor", path); 965 966 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULES, 1024, &nvl)) != 0) 967 goto out; 968 969 rules->nr = nvlist_get_number(nvl, "nr"); 970 rules->ticket = nvlist_get_number(nvl, "ticket"); 971 972 out: 973 nvlist_destroy(nvl); 974 return (ret); 975 } 976 977 int 978 pfctl_get_eth_rule(int dev, uint32_t nr, uint32_t ticket, 979 const char *path, struct pfctl_eth_rule *rule, bool clear, 980 char *anchor_call) 981 { 982 nvlist_t *nvl; 983 int ret; 984 985 nvl = nvlist_create(0); 986 987 nvlist_add_string(nvl, "anchor", path); 988 nvlist_add_number(nvl, "ticket", ticket); 989 nvlist_add_number(nvl, "nr", nr); 990 nvlist_add_bool(nvl, "clear", clear); 991 992 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULE, 4096, &nvl)) != 0) 993 goto out; 994 995 pfctl_nveth_rule_to_eth_rule(nvl, rule); 996 997 if (anchor_call) 998 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"), 999 MAXPATHLEN); 1000 1001 out: 1002 nvlist_destroy(nvl); 1003 return (ret); 1004 } 1005 1006 int 1007 pfctl_add_eth_rule(int dev, const struct pfctl_eth_rule *r, const char *anchor, 1008 const char *anchor_call, uint32_t ticket) 1009 { 1010 struct pfioc_nv nv; 1011 nvlist_t *nvl, *addr; 1012 void *packed; 1013 int error = 0; 1014 size_t labelcount, size; 1015 1016 nvl = nvlist_create(0); 1017 1018 nvlist_add_number(nvl, "ticket", ticket); 1019 nvlist_add_string(nvl, "anchor", anchor); 1020 nvlist_add_string(nvl, "anchor_call", anchor_call); 1021 1022 nvlist_add_number(nvl, "nr", r->nr); 1023 nvlist_add_bool(nvl, "quick", r->quick); 1024 nvlist_add_string(nvl, "ifname", r->ifname); 1025 nvlist_add_bool(nvl, "ifnot", r->ifnot); 1026 nvlist_add_number(nvl, "direction", r->direction); 1027 nvlist_add_number(nvl, "proto", r->proto); 1028 nvlist_add_string(nvl, "match_tagname", r->match_tagname); 1029 nvlist_add_bool(nvl, "match_tag_not", r->match_tag_not); 1030 1031 addr = pfctl_eth_addr_to_nveth_addr(&r->src); 1032 if (addr == NULL) { 1033 nvlist_destroy(nvl); 1034 return (ENOMEM); 1035 } 1036 nvlist_add_nvlist(nvl, "src", addr); 1037 nvlist_destroy(addr); 1038 1039 addr = pfctl_eth_addr_to_nveth_addr(&r->dst); 1040 if (addr == NULL) { 1041 nvlist_destroy(nvl); 1042 return (ENOMEM); 1043 } 1044 nvlist_add_nvlist(nvl, "dst", addr); 1045 nvlist_destroy(addr); 1046 1047 pfctl_nv_add_rule_addr(nvl, "ipsrc", &r->ipsrc); 1048 pfctl_nv_add_rule_addr(nvl, "ipdst", &r->ipdst); 1049 1050 labelcount = 0; 1051 while (labelcount < PF_RULE_MAX_LABEL_COUNT && 1052 r->label[labelcount][0] != 0) { 1053 nvlist_append_string_array(nvl, "labels", 1054 r->label[labelcount]); 1055 labelcount++; 1056 } 1057 nvlist_add_number(nvl, "ridentifier", r->ridentifier); 1058 1059 nvlist_add_string(nvl, "qname", r->qname); 1060 nvlist_add_string(nvl, "tagname", r->tagname); 1061 nvlist_add_number(nvl, "dnpipe", r->dnpipe); 1062 nvlist_add_number(nvl, "dnflags", r->dnflags); 1063 1064 nvlist_add_string(nvl, "bridge_to", r->bridge_to); 1065 1066 nvlist_add_number(nvl, "action", r->action); 1067 1068 packed = nvlist_pack(nvl, &size); 1069 if (packed == NULL) { 1070 nvlist_destroy(nvl); 1071 return (ENOMEM); 1072 } 1073 1074 nv.len = size; 1075 nv.size = size; 1076 nv.data = packed; 1077 1078 if (ioctl(dev, DIOCADDETHRULE, &nv) != 0) 1079 error = errno; 1080 1081 free(packed); 1082 nvlist_destroy(nvl); 1083 1084 return (error); 1085 } 1086 1087 static void 1088 snl_add_msg_attr_addr_wrap(struct snl_writer *nw, uint32_t type, const struct pf_addr_wrap *addr) 1089 { 1090 int off; 1091 1092 off = snl_add_msg_attr_nested(nw, type); 1093 1094 snl_add_msg_attr_ip6(nw, PF_AT_ADDR, &addr->v.a.addr.v6); 1095 snl_add_msg_attr_ip6(nw, PF_AT_MASK, &addr->v.a.mask.v6); 1096 1097 if (addr->type == PF_ADDR_DYNIFTL) 1098 snl_add_msg_attr_string(nw, PF_AT_IFNAME, addr->v.ifname); 1099 if (addr->type == PF_ADDR_TABLE) 1100 snl_add_msg_attr_string(nw, PF_AT_TABLENAME, addr->v.tblname); 1101 snl_add_msg_attr_u8(nw, PF_AT_TYPE, addr->type); 1102 snl_add_msg_attr_u8(nw, PF_AT_IFLAGS, addr->iflags); 1103 1104 snl_end_attr_nested(nw, off); 1105 } 1106 1107 static void 1108 snl_add_msg_attr_pool_addr(struct snl_writer *nw, uint32_t type, const struct pf_pooladdr *pa) 1109 { 1110 int off; 1111 1112 off = snl_add_msg_attr_nested(nw, type); 1113 1114 snl_add_msg_attr_string(nw, PF_PA_IFNAME, pa->ifname); 1115 snl_add_msg_attr_addr_wrap(nw, PF_PA_ADDR, &pa->addr); 1116 1117 snl_end_attr_nested(nw, off); 1118 } 1119 1120 static void 1121 snl_add_msg_attr_rule_addr(struct snl_writer *nw, uint32_t type, const struct pf_rule_addr *addr) 1122 { 1123 int off; 1124 1125 off = snl_add_msg_attr_nested(nw, type); 1126 1127 snl_add_msg_attr_addr_wrap(nw, PF_RAT_ADDR, &addr->addr); 1128 snl_add_msg_attr_u16(nw, PF_RAT_SRC_PORT, addr->port[0]); 1129 snl_add_msg_attr_u16(nw, PF_RAT_DST_PORT, addr->port[1]); 1130 snl_add_msg_attr_u8(nw, PF_RAT_NEG, addr->neg); 1131 snl_add_msg_attr_u8(nw, PF_RAT_OP, addr->port_op); 1132 1133 snl_end_attr_nested(nw, off); 1134 } 1135 1136 static void 1137 snl_add_msg_attr_rule_labels(struct snl_writer *nw, uint32_t type, const char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]) 1138 { 1139 int off, i = 0; 1140 1141 off = snl_add_msg_attr_nested(nw, type); 1142 1143 while (i < PF_RULE_MAX_LABEL_COUNT && 1144 labels[i][0] != 0) { 1145 snl_add_msg_attr_string(nw, PF_LT_LABEL, labels[i]); 1146 i++; 1147 } 1148 1149 snl_end_attr_nested(nw, off); 1150 } 1151 1152 static void 1153 snl_add_msg_attr_mape(struct snl_writer *nw, uint32_t type, const struct pf_mape_portset *me) 1154 { 1155 int off; 1156 1157 off = snl_add_msg_attr_nested(nw, type); 1158 1159 snl_add_msg_attr_u8(nw, PF_MET_OFFSET, me->offset); 1160 snl_add_msg_attr_u8(nw, PF_MET_PSID_LEN, me->psidlen); 1161 snl_add_msg_attr_u16(nw, PF_MET_PSID, me->psid); 1162 1163 snl_end_attr_nested(nw, off); 1164 } 1165 1166 static void 1167 snl_add_msg_attr_rpool(struct snl_writer *nw, uint32_t type, const struct pfctl_pool *pool) 1168 { 1169 int off; 1170 1171 off = snl_add_msg_attr_nested(nw, type); 1172 1173 snl_add_msg_attr(nw, PF_PT_KEY, sizeof(pool->key), &pool->key); 1174 snl_add_msg_attr_ip6(nw, PF_PT_COUNTER, &pool->counter.v6); 1175 snl_add_msg_attr_u32(nw, PF_PT_TBLIDX, pool->tblidx); 1176 snl_add_msg_attr_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]); 1177 snl_add_msg_attr_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]); 1178 snl_add_msg_attr_u8(nw, PF_PT_OPTS, pool->opts); 1179 snl_add_msg_attr_mape(nw, PF_PT_MAPE, &pool->mape); 1180 1181 snl_end_attr_nested(nw, off); 1182 } 1183 1184 static void 1185 snl_add_msg_attr_timeouts(struct snl_writer *nw, uint32_t type, const uint32_t *timeouts) 1186 { 1187 int off; 1188 1189 off = snl_add_msg_attr_nested(nw, type); 1190 1191 for (int i = 0; i < PFTM_MAX; i++) 1192 snl_add_msg_attr_u32(nw, PF_TT_TIMEOUT, timeouts[i]); 1193 1194 snl_end_attr_nested(nw, off); 1195 } 1196 1197 static void 1198 snl_add_msg_attr_uid(struct snl_writer *nw, uint32_t type, const struct pf_rule_uid *uid) 1199 { 1200 int off; 1201 1202 off = snl_add_msg_attr_nested(nw, type); 1203 1204 snl_add_msg_attr_u32(nw, PF_RUT_UID_LOW, uid->uid[0]); 1205 snl_add_msg_attr_u32(nw, PF_RUT_UID_HIGH, uid->uid[1]); 1206 snl_add_msg_attr_u8(nw, PF_RUT_OP, uid->op); 1207 1208 snl_end_attr_nested(nw, off); 1209 } 1210 1211 static void 1212 snl_add_msg_attr_threshold(struct snl_writer *nw, uint32_t type, const struct pfctl_threshold *th) 1213 { 1214 int off; 1215 1216 off = snl_add_msg_attr_nested(nw, type); 1217 1218 snl_add_msg_attr_u32(nw, PF_TH_LIMIT, th->limit); 1219 snl_add_msg_attr_u32(nw, PF_TH_SECONDS, th->seconds); 1220 1221 snl_end_attr_nested(nw, off); 1222 } 1223 1224 static void 1225 snl_add_msg_attr_pf_rule(struct snl_writer *nw, uint32_t type, const struct pfctl_rule *r) 1226 { 1227 int off; 1228 1229 off = snl_add_msg_attr_nested(nw, type); 1230 1231 snl_add_msg_attr_rule_addr(nw, PF_RT_SRC, &r->src); 1232 snl_add_msg_attr_rule_addr(nw, PF_RT_DST, &r->dst); 1233 snl_add_msg_attr_rule_labels(nw, PF_RT_LABELS, r->label); 1234 snl_add_msg_attr_u32(nw, PF_RT_RIDENTIFIER, r->ridentifier); 1235 snl_add_msg_attr_string(nw, PF_RT_IFNAME, r->ifname); 1236 snl_add_msg_attr_string(nw, PF_RT_QNAME, r->qname); 1237 snl_add_msg_attr_string(nw, PF_RT_PQNAME, r->pqname); 1238 snl_add_msg_attr_string(nw, PF_RT_TAGNAME, r->tagname); 1239 snl_add_msg_attr_string(nw, PF_RT_MATCH_TAGNAME, r->match_tagname); 1240 snl_add_msg_attr_string(nw, PF_RT_OVERLOAD_TBLNAME, r->overload_tblname); 1241 snl_add_msg_attr_rpool(nw, PF_RT_RPOOL_RDR, &r->rdr); 1242 snl_add_msg_attr_rpool(nw, PF_RT_RPOOL_NAT, &r->nat); 1243 snl_add_msg_attr_rpool(nw, PF_RT_RPOOL_RT, &r->route); 1244 snl_add_msg_attr_threshold(nw, PF_RT_PKTRATE, &r->pktrate); 1245 snl_add_msg_attr_u32(nw, PF_RT_OS_FINGERPRINT, r->os_fingerprint); 1246 snl_add_msg_attr_u32(nw, PF_RT_RTABLEID, r->rtableid); 1247 snl_add_msg_attr_timeouts(nw, PF_RT_TIMEOUT, r->timeout); 1248 snl_add_msg_attr_u32(nw, PF_RT_MAX_STATES, r->max_states); 1249 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_NODES, r->max_src_nodes); 1250 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_STATES, r->max_src_states); 1251 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN, r->max_src_conn); 1252 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, r->max_src_conn_rate.limit); 1253 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, r->max_src_conn_rate.seconds); 1254 snl_add_msg_attr_u16(nw, PF_RT_MAX_PKT_SIZE, r->max_pkt_size); 1255 1256 snl_add_msg_attr_u16(nw, PF_RT_DNPIPE, r->dnpipe); 1257 snl_add_msg_attr_u16(nw, PF_RT_DNRPIPE, r->dnrpipe); 1258 snl_add_msg_attr_u32(nw, PF_RT_DNFLAGS, r->free_flags); 1259 1260 snl_add_msg_attr_u32(nw, PF_RT_NR, r->nr); 1261 snl_add_msg_attr_u32(nw, PF_RT_PROB, r->prob); 1262 snl_add_msg_attr_u32(nw, PF_RT_CUID, r->cuid); 1263 snl_add_msg_attr_u32(nw, PF_RT_CPID, r->cpid); 1264 1265 snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP, r->return_icmp); 1266 snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP6, r->return_icmp6); 1267 snl_add_msg_attr_u16(nw, PF_RT_MAX_MSS, r->max_mss); 1268 snl_add_msg_attr_u16(nw, PF_RT_SCRUB_FLAGS, r->scrub_flags); 1269 1270 snl_add_msg_attr_uid(nw, PF_RT_UID, &r->uid); 1271 snl_add_msg_attr_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&r->gid); 1272 snl_add_msg_attr_string(nw, PF_RT_RCV_IFNAME, r->rcv_ifname); 1273 snl_add_msg_attr_bool(nw, PF_RT_RCV_IFNOT, r->rcvifnot); 1274 1275 snl_add_msg_attr_u32(nw, PF_RT_RULE_FLAG, r->rule_flag); 1276 snl_add_msg_attr_u8(nw, PF_RT_ACTION, r->action); 1277 snl_add_msg_attr_u8(nw, PF_RT_DIRECTION, r->direction); 1278 snl_add_msg_attr_u8(nw, PF_RT_LOG, r->log); 1279 snl_add_msg_attr_u8(nw, PF_RT_LOGIF, r->logif); 1280 snl_add_msg_attr_u8(nw, PF_RT_QUICK, r->quick); 1281 snl_add_msg_attr_u8(nw, PF_RT_IF_NOT, r->ifnot); 1282 snl_add_msg_attr_u8(nw, PF_RT_MATCH_TAG_NOT, r->match_tag_not); 1283 snl_add_msg_attr_u8(nw, PF_RT_NATPASS, r->natpass); 1284 snl_add_msg_attr_u8(nw, PF_RT_KEEP_STATE, r->keep_state); 1285 snl_add_msg_attr_u8(nw, PF_RT_AF, r->af); 1286 snl_add_msg_attr_u8(nw, PF_RT_PROTO, r->proto); 1287 snl_add_msg_attr_u8(nw, PF_RT_TYPE, r->type); 1288 snl_add_msg_attr_u8(nw, PF_RT_CODE, r->code); 1289 snl_add_msg_attr_u8(nw, PF_RT_FLAGS, r->flags); 1290 snl_add_msg_attr_u8(nw, PF_RT_FLAGSET, r->flagset); 1291 snl_add_msg_attr_u8(nw, PF_RT_MIN_TTL, r->min_ttl); 1292 snl_add_msg_attr_u8(nw, PF_RT_ALLOW_OPTS, r->allow_opts); 1293 snl_add_msg_attr_u8(nw, PF_RT_RT, r->rt); 1294 snl_add_msg_attr_u8(nw, PF_RT_RETURN_TTL, r->return_ttl); 1295 snl_add_msg_attr_u8(nw, PF_RT_TOS, r->tos); 1296 snl_add_msg_attr_u8(nw, PF_RT_SET_TOS, r->set_tos); 1297 1298 snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_RELATIVE, r->anchor_relative); 1299 snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_WILDCARD, r->anchor_wildcard); 1300 snl_add_msg_attr_u8(nw, PF_RT_FLUSH, r->flush); 1301 snl_add_msg_attr_u8(nw, PF_RT_PRIO, r->prio); 1302 snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO, r->set_prio[0]); 1303 snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO_REPLY, r->set_prio[1]); 1304 snl_add_msg_attr_u8(nw, PF_RT_NAF, r->naf); 1305 1306 snl_add_msg_attr_ip6(nw, PF_RT_DIVERT_ADDRESS, &r->divert.addr.v6); 1307 snl_add_msg_attr_u16(nw, PF_RT_DIVERT_PORT, r->divert.port); 1308 1309 snl_end_attr_nested(nw, off); 1310 } 1311 1312 int 1313 pfctl_add_rule(int dev __unused, const struct pfctl_rule *r, const char *anchor, 1314 const char *anchor_call, uint32_t ticket, uint32_t pool_ticket) 1315 { 1316 struct pfctl_handle *h; 1317 int ret; 1318 1319 h = pfctl_open(PF_DEVICE); 1320 if (h == NULL) 1321 return (ENODEV); 1322 1323 ret = pfctl_add_rule_h(h, r, anchor, anchor_call, ticket, pool_ticket); 1324 1325 pfctl_close(h); 1326 1327 return (ret); 1328 } 1329 1330 int 1331 pfctl_add_rule_h(struct pfctl_handle *h, const struct pfctl_rule *r, 1332 const char *anchor, const char *anchor_call, uint32_t ticket, 1333 uint32_t pool_ticket) 1334 { 1335 struct snl_writer nw; 1336 struct snl_errmsg_data e = {}; 1337 struct nlmsghdr *hdr; 1338 uint32_t seq_id; 1339 int family_id; 1340 1341 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 1342 if (family_id == 0) 1343 return (ENOTSUP); 1344 1345 snl_init_writer(&h->ss, &nw); 1346 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_ADDRULE); 1347 hdr->nlmsg_flags |= NLM_F_DUMP; 1348 snl_add_msg_attr_u32(&nw, PF_ART_TICKET, ticket); 1349 snl_add_msg_attr_u32(&nw, PF_ART_POOL_TICKET, pool_ticket); 1350 snl_add_msg_attr_string(&nw, PF_ART_ANCHOR, anchor); 1351 snl_add_msg_attr_string(&nw, PF_ART_ANCHOR_CALL, anchor_call); 1352 1353 snl_add_msg_attr_pf_rule(&nw, PF_ART_RULE, r); 1354 1355 if ((hdr = snl_finalize_msg(&nw)) == NULL) 1356 return (ENXIO); 1357 1358 seq_id = hdr->nlmsg_seq; 1359 1360 if (! snl_send_message(&h->ss, hdr)) 1361 return (ENXIO); 1362 1363 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 1364 } 1365 1366 return (e.error); 1367 } 1368 1369 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1370 #define _OUT(_field) offsetof(struct pfctl_rules_info, _field) 1371 static struct snl_attr_parser ap_getrules[] = { 1372 { .type = PF_GR_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 }, 1373 { .type = PF_GR_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 }, 1374 }; 1375 #undef _IN 1376 #undef _OUT 1377 SNL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, snl_f_p_empty, ap_getrules); 1378 1379 int 1380 pfctl_get_rules_info_h(struct pfctl_handle *h, struct pfctl_rules_info *rules, uint32_t ruleset, 1381 const char *path) 1382 { 1383 struct snl_errmsg_data e = {}; 1384 struct nlmsghdr *hdr; 1385 struct snl_writer nw; 1386 uint32_t seq_id; 1387 int family_id; 1388 1389 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 1390 if (family_id == 0) 1391 return (ENOTSUP); 1392 1393 snl_init_writer(&h->ss, &nw); 1394 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETRULES); 1395 hdr->nlmsg_flags |= NLM_F_DUMP; 1396 1397 snl_add_msg_attr_string(&nw, PF_GR_ANCHOR, path); 1398 snl_add_msg_attr_u8(&nw, PF_GR_ACTION, ruleset); 1399 1400 hdr = snl_finalize_msg(&nw); 1401 if (hdr == NULL) 1402 return (ENOMEM); 1403 1404 seq_id = hdr->nlmsg_seq; 1405 if (! snl_send_message(&h->ss, hdr)) 1406 return (ENXIO); 1407 1408 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 1409 if (! snl_parse_nlmsg(&h->ss, hdr, &getrules_parser, rules)) 1410 continue; 1411 } 1412 1413 return (e.error); 1414 } 1415 1416 int 1417 pfctl_get_rules_info(int dev __unused, struct pfctl_rules_info *rules, uint32_t ruleset, 1418 const char *path) 1419 { 1420 struct pfctl_handle *h; 1421 int error; 1422 1423 h = pfctl_open(PF_DEVICE); 1424 if (h == NULL) 1425 return (ENOTSUP); 1426 error = pfctl_get_rules_info_h(h, rules, ruleset, path); 1427 pfctl_close(h); 1428 1429 return (error); 1430 } 1431 1432 int 1433 pfctl_get_rule_h(struct pfctl_handle *h, uint32_t nr, uint32_t ticket, const char *anchor, 1434 uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call) 1435 { 1436 return (pfctl_get_clear_rule_h(h, nr, ticket, anchor, ruleset, rule, 1437 anchor_call, false)); 1438 } 1439 1440 int 1441 pfctl_get_rule(int dev, uint32_t nr, uint32_t ticket, const char *anchor, 1442 uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call) 1443 { 1444 return (pfctl_get_clear_rule(dev, nr, ticket, anchor, ruleset, rule, 1445 anchor_call, false)); 1446 } 1447 1448 #define _OUT(_field) offsetof(struct pf_addr_wrap, _field) 1449 static const struct snl_attr_parser ap_addr_wrap[] = { 1450 { .type = PF_AT_ADDR, .off = _OUT(v.a.addr), .cb = snl_attr_get_in6_addr }, 1451 { .type = PF_AT_MASK, .off = _OUT(v.a.mask), .cb = snl_attr_get_in6_addr }, 1452 { .type = PF_AT_IFNAME, .off = _OUT(v.ifname), .arg = (void *)IFNAMSIZ,.cb = snl_attr_copy_string }, 1453 { .type = PF_AT_TABLENAME, .off = _OUT(v.tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = snl_attr_copy_string }, 1454 { .type = PF_AT_TYPE, .off = _OUT(type), .cb = snl_attr_get_uint8 }, 1455 { .type = PF_AT_IFLAGS, .off = _OUT(iflags), .cb = snl_attr_get_uint8 }, 1456 { .type = PF_AT_TBLCNT, .off = _OUT(p.tblcnt), .cb = snl_attr_get_uint32 }, 1457 { .type = PF_AT_DYNCNT, .off = _OUT(p.dyncnt), .cb = snl_attr_get_uint32 }, 1458 }; 1459 SNL_DECLARE_ATTR_PARSER(addr_wrap_parser, ap_addr_wrap); 1460 #undef _OUT 1461 1462 #define _OUT(_field) offsetof(struct pf_rule_addr, _field) 1463 static struct snl_attr_parser ap_rule_addr[] = { 1464 { .type = PF_RAT_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = snl_attr_get_nested }, 1465 { .type = PF_RAT_SRC_PORT, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 }, 1466 { .type = PF_RAT_DST_PORT, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 }, 1467 { .type = PF_RAT_NEG, .off = _OUT(neg), .cb = snl_attr_get_uint8 }, 1468 { .type = PF_RAT_OP, .off = _OUT(port_op), .cb = snl_attr_get_uint8 }, 1469 }; 1470 #undef _OUT 1471 SNL_DECLARE_ATTR_PARSER(rule_addr_parser, ap_rule_addr); 1472 1473 struct snl_parsed_labels 1474 { 1475 char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 1476 uint32_t i; 1477 }; 1478 1479 static bool 1480 snl_attr_get_pf_rule_labels(struct snl_state *ss, struct nlattr *nla, 1481 const void *arg __unused, void *target) 1482 { 1483 struct snl_parsed_labels *l = (struct snl_parsed_labels *)target; 1484 bool ret; 1485 1486 if (l->i >= PF_RULE_MAX_LABEL_COUNT) 1487 return (E2BIG); 1488 1489 ret = snl_attr_copy_string(ss, nla, (void *)PF_RULE_LABEL_SIZE, 1490 l->labels[l->i]); 1491 if (ret) 1492 l->i++; 1493 1494 return (ret); 1495 } 1496 1497 #define _OUT(_field) offsetof(struct nl_parsed_labels, _field) 1498 static const struct snl_attr_parser ap_labels[] = { 1499 { .type = PF_LT_LABEL, .off = 0, .cb = snl_attr_get_pf_rule_labels }, 1500 }; 1501 SNL_DECLARE_ATTR_PARSER(rule_labels_parser, ap_labels); 1502 #undef _OUT 1503 1504 static bool 1505 snl_attr_get_nested_pf_rule_labels(struct snl_state *ss, struct nlattr *nla, 1506 const void *arg __unused, void *target) 1507 { 1508 struct snl_parsed_labels parsed_labels = { }; 1509 bool error; 1510 1511 /* Assumes target points to the beginning of the structure */ 1512 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &rule_labels_parser, &parsed_labels); 1513 if (! error) 1514 return (error); 1515 1516 memcpy(target, parsed_labels.labels, sizeof(parsed_labels.labels)); 1517 1518 return (true); 1519 } 1520 1521 #define _OUT(_field) offsetof(struct pf_mape_portset, _field) 1522 static const struct snl_attr_parser ap_mape_portset[] = { 1523 { .type = PF_MET_OFFSET, .off = _OUT(offset), .cb = snl_attr_get_uint8 }, 1524 { .type = PF_MET_PSID_LEN, .off = _OUT(psidlen), .cb = snl_attr_get_uint8 }, 1525 {. type = PF_MET_PSID, .off = _OUT(psid), .cb = snl_attr_get_uint16 }, 1526 }; 1527 SNL_DECLARE_ATTR_PARSER(mape_portset_parser, ap_mape_portset); 1528 #undef _OUT 1529 1530 #define _OUT(_field) offsetof(struct pfctl_pool, _field) 1531 static const struct snl_attr_parser ap_pool[] = { 1532 { .type = PF_PT_KEY, .off = _OUT(key), .arg = (void *)sizeof(struct pf_poolhashkey), .cb = snl_attr_get_bytes }, 1533 { .type = PF_PT_COUNTER, .off = _OUT(counter), .cb = snl_attr_get_in6_addr }, 1534 { .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = snl_attr_get_uint32 }, 1535 { .type = PF_PT_PROXY_SRC_PORT, .off = _OUT(proxy_port[0]), .cb = snl_attr_get_uint16 }, 1536 { .type = PF_PT_PROXY_DST_PORT, .off = _OUT(proxy_port[1]), .cb = snl_attr_get_uint16 }, 1537 { .type = PF_PT_OPTS, .off = _OUT(opts), .cb = snl_attr_get_uint8 }, 1538 { .type = PF_PT_MAPE, .off = _OUT(mape), .arg = &mape_portset_parser, .cb = snl_attr_get_nested }, 1539 }; 1540 SNL_DECLARE_ATTR_PARSER(pool_parser, ap_pool); 1541 #undef _OUT 1542 1543 struct nl_parsed_timeouts 1544 { 1545 uint32_t timeouts[PFTM_MAX]; 1546 uint32_t i; 1547 }; 1548 1549 static bool 1550 snl_attr_get_pf_timeout(struct snl_state *ss, struct nlattr *nla, 1551 const void *arg __unused, void *target) 1552 { 1553 struct nl_parsed_timeouts *t = (struct nl_parsed_timeouts *)target; 1554 bool ret; 1555 1556 if (t->i >= PFTM_MAX) 1557 return (E2BIG); 1558 1559 ret = snl_attr_get_uint32(ss, nla, NULL, &t->timeouts[t->i]); 1560 if (ret) 1561 t->i++; 1562 1563 return (ret); 1564 } 1565 1566 #define _OUT(_field) offsetof(struct nl_parsed_timeout, _field) 1567 static const struct snl_attr_parser ap_timeouts[] = { 1568 { .type = PF_TT_TIMEOUT, .off = 0, .cb = snl_attr_get_pf_timeout }, 1569 }; 1570 SNL_DECLARE_ATTR_PARSER(timeout_parser, ap_timeouts); 1571 #undef _OUT 1572 1573 static bool 1574 snl_attr_get_nested_timeouts(struct snl_state *ss, struct nlattr *nla, 1575 const void *arg __unused, void *target) 1576 { 1577 struct nl_parsed_timeouts parsed_timeouts = { }; 1578 bool error; 1579 1580 /* Assumes target points to the beginning of the structure */ 1581 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &timeout_parser, &parsed_timeouts); 1582 if (! error) 1583 return (error); 1584 1585 memcpy(target, parsed_timeouts.timeouts, sizeof(parsed_timeouts.timeouts)); 1586 1587 return (true); 1588 } 1589 1590 #define _OUT(_field) offsetof(struct pf_rule_uid, _field) 1591 static const struct snl_attr_parser ap_rule_uid[] = { 1592 { .type = PF_RUT_UID_LOW, .off = _OUT(uid[0]), .cb = snl_attr_get_uint32 }, 1593 { .type = PF_RUT_UID_HIGH, .off = _OUT(uid[1]), .cb = snl_attr_get_uint32 }, 1594 { .type = PF_RUT_OP, .off = _OUT(op), .cb = snl_attr_get_uint8 }, 1595 }; 1596 SNL_DECLARE_ATTR_PARSER(rule_uid_parser, ap_rule_uid); 1597 #undef _OUT 1598 1599 #define _OUT(_field) offsetof(struct pfctl_threshold, _field) 1600 static const struct snl_attr_parser ap_pfctl_threshold[] = { 1601 { .type = PF_TH_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 }, 1602 { .type = PF_TH_SECONDS, .off = _OUT(seconds), .cb = snl_attr_get_uint32 }, 1603 { .type = PF_TH_COUNT, .off = _OUT(count), .cb = snl_attr_get_uint32 }, 1604 }; 1605 SNL_DECLARE_ATTR_PARSER(pfctl_threshold_parser, ap_pfctl_threshold); 1606 #undef _OUT 1607 1608 struct pfctl_nl_get_rule { 1609 struct pfctl_rule r; 1610 char anchor_call[MAXPATHLEN]; 1611 }; 1612 #define _OUT(_field) offsetof(struct pfctl_nl_get_rule, _field) 1613 static struct snl_attr_parser ap_getrule[] = { 1614 { .type = PF_RT_SRC, .off = _OUT(r.src), .arg = &rule_addr_parser,.cb = snl_attr_get_nested }, 1615 { .type = PF_RT_DST, .off = _OUT(r.dst), .arg = &rule_addr_parser,.cb = snl_attr_get_nested }, 1616 { .type = PF_RT_RIDENTIFIER, .off = _OUT(r.ridentifier), .cb = snl_attr_get_uint32 }, 1617 { .type = PF_RT_LABELS, .off = _OUT(r.label), .arg = &rule_labels_parser,.cb = snl_attr_get_nested_pf_rule_labels }, 1618 { .type = PF_RT_IFNAME, .off = _OUT(r.ifname), .arg = (void *)IFNAMSIZ, .cb = snl_attr_copy_string }, 1619 { .type = PF_RT_QNAME, .off = _OUT(r.qname), .arg = (void *)PF_QNAME_SIZE, .cb = snl_attr_copy_string }, 1620 { .type = PF_RT_PQNAME, .off = _OUT(r.pqname), .arg = (void *)PF_QNAME_SIZE, .cb = snl_attr_copy_string }, 1621 { .type = PF_RT_TAGNAME, .off = _OUT(r.tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = snl_attr_copy_string }, 1622 { .type = PF_RT_MATCH_TAGNAME, .off = _OUT(r.match_tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = snl_attr_copy_string }, 1623 { .type = PF_RT_OVERLOAD_TBLNAME, .off = _OUT(r.overload_tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = snl_attr_copy_string }, 1624 { .type = PF_RT_RPOOL_RDR, .off = _OUT(r.rdr), .arg = &pool_parser, .cb = snl_attr_get_nested }, 1625 { .type = PF_RT_OS_FINGERPRINT, .off = _OUT(r.os_fingerprint), .cb = snl_attr_get_uint32 }, 1626 { .type = PF_RT_RTABLEID, .off = _OUT(r.rtableid), .cb = snl_attr_get_uint32 }, 1627 { .type = PF_RT_TIMEOUT, .off = _OUT(r.timeout), .arg = &timeout_parser, .cb = snl_attr_get_nested_timeouts }, 1628 { .type = PF_RT_MAX_STATES, .off = _OUT(r.max_states), .cb = snl_attr_get_uint32 }, 1629 { .type = PF_RT_MAX_SRC_NODES, .off = _OUT(r.max_src_nodes), .cb = snl_attr_get_uint32 }, 1630 { .type = PF_RT_MAX_SRC_STATES, .off = _OUT(r.max_src_states), .cb = snl_attr_get_uint32 }, 1631 { .type = PF_RT_MAX_SRC_CONN_RATE_LIMIT, .off = _OUT(r.max_src_conn_rate.limit), .cb = snl_attr_get_uint32 }, 1632 { .type = PF_RT_MAX_SRC_CONN_RATE_SECS, .off = _OUT(r.max_src_conn_rate.seconds), .cb = snl_attr_get_uint32 }, 1633 { .type = PF_RT_DNPIPE, .off = _OUT(r.dnpipe), .cb = snl_attr_get_uint16 }, 1634 { .type = PF_RT_DNRPIPE, .off = _OUT(r.dnrpipe), .cb = snl_attr_get_uint16 }, 1635 { .type = PF_RT_DNFLAGS, .off = _OUT(r.free_flags), .cb = snl_attr_get_uint32 }, 1636 { .type = PF_RT_NR, .off = _OUT(r.nr), .cb = snl_attr_get_uint32 }, 1637 { .type = PF_RT_PROB, .off = _OUT(r.prob), .cb = snl_attr_get_uint32 }, 1638 { .type = PF_RT_CUID, .off = _OUT(r.cuid), .cb = snl_attr_get_uint32 }, 1639 {. type = PF_RT_CPID, .off = _OUT(r.cpid), .cb = snl_attr_get_uint32 }, 1640 { .type = PF_RT_RETURN_ICMP, .off = _OUT(r.return_icmp), .cb = snl_attr_get_uint16 }, 1641 { .type = PF_RT_RETURN_ICMP6, .off = _OUT(r.return_icmp6), .cb = snl_attr_get_uint16 }, 1642 { .type = PF_RT_MAX_MSS, .off = _OUT(r.max_mss), .cb = snl_attr_get_uint16 }, 1643 { .type = PF_RT_SCRUB_FLAGS, .off = _OUT(r.scrub_flags), .cb = snl_attr_get_uint16 }, 1644 { .type = PF_RT_UID, .off = _OUT(r.uid), .arg = &rule_uid_parser, .cb = snl_attr_get_nested }, 1645 { .type = PF_RT_GID, .off = _OUT(r.gid), .arg = &rule_uid_parser, .cb = snl_attr_get_nested }, 1646 { .type = PF_RT_RULE_FLAG, .off = _OUT(r.rule_flag), .cb = snl_attr_get_uint32 }, 1647 { .type = PF_RT_ACTION, .off = _OUT(r.action), .cb = snl_attr_get_uint8 }, 1648 { .type = PF_RT_DIRECTION, .off = _OUT(r.direction), .cb = snl_attr_get_uint8 }, 1649 { .type = PF_RT_LOG, .off = _OUT(r.log), .cb = snl_attr_get_uint8 }, 1650 { .type = PF_RT_LOGIF, .off = _OUT(r.logif), .cb = snl_attr_get_uint8 }, 1651 { .type = PF_RT_QUICK, .off = _OUT(r.quick), .cb = snl_attr_get_uint8 }, 1652 { .type = PF_RT_IF_NOT, .off = _OUT(r.ifnot), .cb = snl_attr_get_uint8 }, 1653 { .type = PF_RT_MATCH_TAG_NOT, .off = _OUT(r.match_tag_not), .cb = snl_attr_get_uint8 }, 1654 { .type = PF_RT_NATPASS, .off = _OUT(r.natpass), .cb = snl_attr_get_uint8 }, 1655 { .type = PF_RT_KEEP_STATE, .off = _OUT(r.keep_state), .cb = snl_attr_get_uint8 }, 1656 { .type = PF_RT_AF, .off = _OUT(r.af), .cb = snl_attr_get_uint8 }, 1657 { .type = PF_RT_PROTO, .off = _OUT(r.proto), .cb = snl_attr_get_uint8 }, 1658 { .type = PF_RT_TYPE, .off = _OUT(r.type), .cb = snl_attr_get_uint8 }, 1659 { .type = PF_RT_CODE, .off = _OUT(r.code), .cb = snl_attr_get_uint8 }, 1660 { .type = PF_RT_FLAGS, .off = _OUT(r.flags), .cb = snl_attr_get_uint8 }, 1661 { .type = PF_RT_FLAGSET, .off = _OUT(r.flagset), .cb = snl_attr_get_uint8 }, 1662 { .type = PF_RT_MIN_TTL, .off = _OUT(r.min_ttl), .cb = snl_attr_get_uint8 }, 1663 { .type = PF_RT_ALLOW_OPTS, .off = _OUT(r.allow_opts), .cb = snl_attr_get_uint8 }, 1664 { .type = PF_RT_RT, .off = _OUT(r.rt), .cb = snl_attr_get_uint8 }, 1665 { .type = PF_RT_RETURN_TTL, .off = _OUT(r.return_ttl), .cb = snl_attr_get_uint8 }, 1666 { .type = PF_RT_TOS, .off = _OUT(r.tos), .cb = snl_attr_get_uint8 }, 1667 { .type = PF_RT_SET_TOS, .off = _OUT(r.set_tos), .cb = snl_attr_get_uint8 }, 1668 { .type = PF_RT_ANCHOR_RELATIVE, .off = _OUT(r.anchor_relative), .cb = snl_attr_get_uint8 }, 1669 { .type = PF_RT_ANCHOR_WILDCARD, .off = _OUT(r.anchor_wildcard), .cb = snl_attr_get_uint8 }, 1670 { .type = PF_RT_FLUSH, .off = _OUT(r.flush), .cb = snl_attr_get_uint8 }, 1671 { .type = PF_RT_PRIO, .off = _OUT(r.prio), .cb = snl_attr_get_uint8 }, 1672 { .type = PF_RT_SET_PRIO, .off = _OUT(r.set_prio[0]), .cb = snl_attr_get_uint8 }, 1673 { .type = PF_RT_SET_PRIO_REPLY, .off = _OUT(r.set_prio[1]), .cb = snl_attr_get_uint8 }, 1674 { .type = PF_RT_DIVERT_ADDRESS, .off = _OUT(r.divert.addr), .cb = snl_attr_get_in6_addr }, 1675 { .type = PF_RT_DIVERT_PORT, .off = _OUT(r.divert.port), .cb = snl_attr_get_uint16 }, 1676 { .type = PF_RT_PACKETS_IN, .off = _OUT(r.packets[0]), .cb = snl_attr_get_uint64 }, 1677 { .type = PF_RT_PACKETS_OUT, .off = _OUT(r.packets[1]), .cb = snl_attr_get_uint64 }, 1678 { .type = PF_RT_BYTES_IN, .off = _OUT(r.bytes[0]), .cb = snl_attr_get_uint64 }, 1679 { .type = PF_RT_BYTES_OUT, .off = _OUT(r.bytes[1]), .cb = snl_attr_get_uint64 }, 1680 { .type = PF_RT_EVALUATIONS, .off = _OUT(r.evaluations), .cb = snl_attr_get_uint64 }, 1681 { .type = PF_RT_TIMESTAMP, .off = _OUT(r.last_active_timestamp), .cb = snl_attr_get_uint64 }, 1682 { .type = PF_RT_STATES_CUR, .off = _OUT(r.states_cur), .cb = snl_attr_get_uint64 }, 1683 { .type = PF_RT_STATES_TOTAL, .off = _OUT(r.states_tot), .cb = snl_attr_get_uint64 }, 1684 { .type = PF_RT_SRC_NODES, .off = _OUT(r.src_nodes), .cb = snl_attr_get_uint64 }, 1685 { .type = PF_RT_ANCHOR_CALL, .off = _OUT(anchor_call), .arg = (void*)MAXPATHLEN, .cb = snl_attr_copy_string }, 1686 { .type = PF_RT_RCV_IFNAME, .off = _OUT(r.rcv_ifname), .arg = (void*)IFNAMSIZ, .cb = snl_attr_copy_string }, 1687 { .type = PF_RT_MAX_SRC_CONN, .off = _OUT(r.max_src_conn), .cb = snl_attr_get_uint32 }, 1688 { .type = PF_RT_RPOOL_NAT, .off = _OUT(r.nat), .arg = &pool_parser, .cb = snl_attr_get_nested }, 1689 { .type = PF_RT_NAF, .off = _OUT(r.naf), .cb = snl_attr_get_uint8 }, 1690 { .type = PF_RT_RPOOL_RT, .off = _OUT(r.route), .arg = &pool_parser, .cb = snl_attr_get_nested }, 1691 { .type = PF_RT_RCV_IFNOT, .off = _OUT(r.rcvifnot),.cb = snl_attr_get_bool }, 1692 { .type = PF_RT_SRC_NODES_LIMIT, .off = _OUT(r.src_nodes_type[PF_SN_LIMIT]), .cb = snl_attr_get_uint64 }, 1693 { .type = PF_RT_SRC_NODES_NAT, .off = _OUT(r.src_nodes_type[PF_SN_NAT]), .cb = snl_attr_get_uint64 }, 1694 { .type = PF_RT_SRC_NODES_ROUTE, .off = _OUT(r.src_nodes_type[PF_SN_ROUTE]), .cb = snl_attr_get_uint64 }, 1695 { .type = PF_RT_PKTRATE, .off = _OUT(r.pktrate), .arg = &pfctl_threshold_parser, .cb = snl_attr_get_nested }, 1696 { .type = PF_RT_MAX_PKT_SIZE, .off =_OUT(r.max_pkt_size), .cb = snl_attr_get_uint16 }, 1697 }; 1698 #undef _OUT 1699 SNL_DECLARE_PARSER(getrule_parser, struct genlmsghdr, snl_f_p_empty, ap_getrule); 1700 1701 int 1702 pfctl_get_clear_rule_h(struct pfctl_handle *h, uint32_t nr, uint32_t ticket, 1703 const char *anchor, uint32_t ruleset, struct pfctl_rule *rule, 1704 char *anchor_call, bool clear) 1705 { 1706 struct pfctl_nl_get_rule attrs = {}; 1707 struct snl_errmsg_data e = {}; 1708 struct nlmsghdr *hdr; 1709 struct snl_writer nw; 1710 uint32_t seq_id; 1711 int family_id; 1712 1713 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 1714 if (family_id == 0) 1715 return (ENOTSUP); 1716 1717 snl_init_writer(&h->ss, &nw); 1718 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETRULE); 1719 hdr->nlmsg_flags |= NLM_F_DUMP; 1720 1721 snl_add_msg_attr_string(&nw, PF_GR_ANCHOR, anchor); 1722 snl_add_msg_attr_u8(&nw, PF_GR_ACTION, ruleset); 1723 snl_add_msg_attr_u32(&nw, PF_GR_NR, nr); 1724 snl_add_msg_attr_u32(&nw, PF_GR_TICKET, ticket); 1725 snl_add_msg_attr_u8(&nw, PF_GR_CLEAR, clear); 1726 1727 hdr = snl_finalize_msg(&nw); 1728 if (hdr == NULL) 1729 return (ENOMEM); 1730 1731 seq_id = hdr->nlmsg_seq; 1732 if (! snl_send_message(&h->ss, hdr)) 1733 return (ENXIO); 1734 1735 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 1736 if (! snl_parse_nlmsg(&h->ss, hdr, &getrule_parser, &attrs)) 1737 continue; 1738 } 1739 1740 memcpy(rule, &attrs.r, sizeof(attrs.r)); 1741 strlcpy(anchor_call, attrs.anchor_call, MAXPATHLEN); 1742 1743 return (e.error); 1744 } 1745 1746 int 1747 pfctl_get_clear_rule(int dev, uint32_t nr, uint32_t ticket, 1748 const char *anchor, uint32_t ruleset, struct pfctl_rule *rule, 1749 char *anchor_call, bool clear) 1750 { 1751 nvlist_t *nvl; 1752 int ret; 1753 1754 nvl = nvlist_create(0); 1755 if (nvl == 0) 1756 return (ENOMEM); 1757 1758 nvlist_add_number(nvl, "nr", nr); 1759 nvlist_add_number(nvl, "ticket", ticket); 1760 nvlist_add_string(nvl, "anchor", anchor); 1761 nvlist_add_number(nvl, "ruleset", ruleset); 1762 1763 if (clear) 1764 nvlist_add_bool(nvl, "clear_counter", true); 1765 1766 if ((ret = pfctl_do_ioctl(dev, DIOCGETRULENV, 8192, &nvl)) != 0) 1767 goto out; 1768 1769 pf_nvrule_to_rule(nvlist_get_nvlist(nvl, "rule"), rule); 1770 1771 if (anchor_call) 1772 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"), 1773 MAXPATHLEN); 1774 1775 out: 1776 nvlist_destroy(nvl); 1777 return (ret); 1778 } 1779 1780 int 1781 pfctl_set_keepcounters(int dev, bool keep) 1782 { 1783 struct pfioc_nv nv; 1784 nvlist_t *nvl; 1785 int ret; 1786 1787 nvl = nvlist_create(0); 1788 1789 nvlist_add_bool(nvl, "keep_counters", keep); 1790 1791 nv.data = nvlist_pack(nvl, &nv.len); 1792 nv.size = nv.len; 1793 1794 nvlist_destroy(nvl); 1795 1796 ret = ioctl(dev, DIOCKEEPCOUNTERS, &nv); 1797 1798 free(nv.data); 1799 return (ret); 1800 } 1801 1802 struct pfctl_creator { 1803 uint32_t id; 1804 }; 1805 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1806 #define _OUT(_field) offsetof(struct pfctl_creator, _field) 1807 static struct snl_attr_parser ap_creators[] = { 1808 { .type = PF_ST_CREATORID, .off = _OUT(id), .cb = snl_attr_get_uint32 }, 1809 }; 1810 #undef _IN 1811 #undef _OUT 1812 SNL_DECLARE_PARSER(creator_parser, struct genlmsghdr, snl_f_p_empty, ap_creators); 1813 1814 static int 1815 pfctl_get_creators_nl(struct snl_state *ss, uint32_t *creators, size_t *len) 1816 { 1817 1818 int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME); 1819 size_t i = 0; 1820 1821 struct nlmsghdr *hdr; 1822 struct snl_writer nw; 1823 1824 if (family_id == 0) 1825 return (ENOTSUP); 1826 1827 snl_init_writer(ss, &nw); 1828 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETCREATORS); 1829 hdr->nlmsg_flags |= NLM_F_DUMP; 1830 hdr = snl_finalize_msg(&nw); 1831 if (hdr == NULL) 1832 return (ENOMEM); 1833 uint32_t seq_id = hdr->nlmsg_seq; 1834 1835 snl_send_message(ss, hdr); 1836 1837 struct snl_errmsg_data e = {}; 1838 while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) { 1839 struct pfctl_creator c; 1840 bzero(&c, sizeof(c)); 1841 1842 if (!snl_parse_nlmsg(ss, hdr, &creator_parser, &c)) 1843 continue; 1844 1845 creators[i] = c.id; 1846 i++; 1847 if (i > *len) 1848 return (E2BIG); 1849 } 1850 1851 *len = i; 1852 1853 return (0); 1854 } 1855 1856 int 1857 pfctl_get_creatorids(struct pfctl_handle *h, uint32_t *creators, size_t *len) 1858 { 1859 int error; 1860 1861 error = pfctl_get_creators_nl(&h->ss, creators, len); 1862 1863 return (error); 1864 } 1865 1866 static inline bool 1867 snl_attr_get_pfaddr(struct snl_state *ss __unused, struct nlattr *nla, 1868 const void *arg __unused, void *target) 1869 { 1870 memcpy(target, NLA_DATA(nla), NLA_DATA_LEN(nla)); 1871 return (true); 1872 } 1873 1874 static inline bool 1875 snl_attr_store_ifname(struct snl_state *ss __unused, struct nlattr *nla, 1876 const void *arg __unused, void *target) 1877 { 1878 size_t maxlen = NLA_DATA_LEN(nla); 1879 1880 if (strnlen((char *)NLA_DATA(nla), maxlen) < maxlen) { 1881 strlcpy(target, (char *)NLA_DATA(nla), maxlen); 1882 return (true); 1883 } 1884 return (false); 1885 } 1886 1887 #define _OUT(_field) offsetof(struct pfctl_state_peer, _field) 1888 static const struct snl_attr_parser nla_p_speer[] = { 1889 { .type = PF_STP_SEQLO, .off = _OUT(seqlo), .cb = snl_attr_get_uint32 }, 1890 { .type = PF_STP_SEQHI, .off = _OUT(seqhi), .cb = snl_attr_get_uint32 }, 1891 { .type = PF_STP_SEQDIFF, .off = _OUT(seqdiff), .cb = snl_attr_get_uint32 }, 1892 { .type = PF_STP_STATE, .off = _OUT(state), .cb = snl_attr_get_uint8 }, 1893 { .type = PF_STP_WSCALE, .off = _OUT(wscale), .cb = snl_attr_get_uint8 }, 1894 }; 1895 SNL_DECLARE_ATTR_PARSER(speer_parser, nla_p_speer); 1896 #undef _OUT 1897 1898 #define _OUT(_field) offsetof(struct pfctl_state_key, _field) 1899 static const struct snl_attr_parser nla_p_skey[] = { 1900 { .type = PF_STK_ADDR0, .off = _OUT(addr[0]), .cb = snl_attr_get_pfaddr }, 1901 { .type = PF_STK_ADDR1, .off = _OUT(addr[1]), .cb = snl_attr_get_pfaddr }, 1902 { .type = PF_STK_PORT0, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 }, 1903 { .type = PF_STK_PORT1, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 }, 1904 { .type = PF_STK_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 }, 1905 { .type = PF_STK_PROTO, .off = _OUT(proto), .cb = snl_attr_get_uint16 }, 1906 }; 1907 SNL_DECLARE_ATTR_PARSER(skey_parser, nla_p_skey); 1908 #undef _OUT 1909 1910 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1911 #define _OUT(_field) offsetof(struct pfctl_state, _field) 1912 static struct snl_attr_parser ap_state[] = { 1913 { .type = PF_ST_ID, .off = _OUT(id), .cb = snl_attr_get_uint64 }, 1914 { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = snl_attr_get_uint32 }, 1915 { .type = PF_ST_IFNAME, .off = _OUT(ifname), .cb = snl_attr_store_ifname }, 1916 { .type = PF_ST_ORIG_IFNAME, .off = _OUT(orig_ifname), .cb = snl_attr_store_ifname }, 1917 { .type = PF_ST_KEY_WIRE, .off = _OUT(key[0]), .arg = &skey_parser, .cb = snl_attr_get_nested }, 1918 { .type = PF_ST_KEY_STACK, .off = _OUT(key[1]), .arg = &skey_parser, .cb = snl_attr_get_nested }, 1919 { .type = PF_ST_PEER_SRC, .off = _OUT(src), .arg = &speer_parser, .cb = snl_attr_get_nested }, 1920 { .type = PF_ST_PEER_DST, .off = _OUT(dst), .arg = &speer_parser, .cb = snl_attr_get_nested }, 1921 { .type = PF_ST_RT_ADDR, .off = _OUT(rt_addr), .cb = snl_attr_get_pfaddr }, 1922 { .type = PF_ST_RULE, .off = _OUT(rule), .cb = snl_attr_get_uint32 }, 1923 { .type = PF_ST_ANCHOR, .off = _OUT(anchor), .cb = snl_attr_get_uint32 }, 1924 { .type = PF_ST_NAT_RULE, .off = _OUT(nat_rule), .cb = snl_attr_get_uint32 }, 1925 { .type = PF_ST_CREATION, .off = _OUT(creation), .cb = snl_attr_get_uint32 }, 1926 { .type = PF_ST_EXPIRE, .off = _OUT(expire), .cb = snl_attr_get_uint32 }, 1927 { .type = PF_ST_PACKETS0, .off = _OUT(packets[0]), .cb = snl_attr_get_uint64 }, 1928 { .type = PF_ST_PACKETS1, .off = _OUT(packets[1]), .cb = snl_attr_get_uint64 }, 1929 { .type = PF_ST_BYTES0, .off = _OUT(bytes[0]), .cb = snl_attr_get_uint64 }, 1930 { .type = PF_ST_BYTES1, .off = _OUT(bytes[1]), .cb = snl_attr_get_uint64 }, 1931 { .type = PF_ST_DIRECTION, .off = _OUT(direction), .cb = snl_attr_get_uint8 }, 1932 { .type = PF_ST_LOG, .off = _OUT(log), .cb = snl_attr_get_uint8 }, 1933 { .type = PF_ST_STATE_FLAGS, .off = _OUT(state_flags), .cb = snl_attr_get_uint16 }, 1934 { .type = PF_ST_SYNC_FLAGS, .off = _OUT(sync_flags), .cb = snl_attr_get_uint8 }, 1935 { .type = PF_ST_RTABLEID, .off = _OUT(rtableid), .cb = snl_attr_get_int32 }, 1936 { .type = PF_ST_MIN_TTL, .off = _OUT(min_ttl), .cb = snl_attr_get_uint8 }, 1937 { .type = PF_ST_MAX_MSS, .off = _OUT(max_mss), .cb = snl_attr_get_uint16 }, 1938 { .type = PF_ST_DNPIPE, .off = _OUT(dnpipe), .cb = snl_attr_get_uint16 }, 1939 { .type = PF_ST_DNRPIPE, .off = _OUT(dnrpipe), .cb = snl_attr_get_uint16 }, 1940 { .type = PF_ST_RT, .off = _OUT(rt), .cb = snl_attr_get_uint8 }, 1941 { .type = PF_ST_RT_IFNAME, .off = _OUT(rt_ifname), .cb = snl_attr_store_ifname }, 1942 { .type = PF_ST_SRC_NODE_FLAGS, .off = _OUT(src_node_flags), .cb = snl_attr_get_uint8 }, 1943 { .type = PF_ST_RT_AF, .off = _OUT(rt_af), .cb = snl_attr_get_uint8 }, 1944 }; 1945 #undef _IN 1946 #undef _OUT 1947 SNL_DECLARE_PARSER(state_parser, struct genlmsghdr, snl_f_p_empty, ap_state); 1948 1949 static const struct snl_hdr_parser *all_parsers[] = { 1950 &state_parser, &skey_parser, &speer_parser, 1951 &creator_parser, &getrules_parser 1952 }; 1953 1954 static int 1955 pfctl_get_states_nl(struct pfctl_state_filter *filter, struct snl_state *ss, pfctl_get_state_fn f, void *arg) 1956 { 1957 SNL_VERIFY_PARSERS(all_parsers); 1958 int family_id = snl_get_genl_family(ss, PFNL_FAMILY_NAME); 1959 int ret; 1960 1961 struct nlmsghdr *hdr; 1962 struct snl_writer nw; 1963 1964 if (family_id == 0) 1965 return (ENOTSUP); 1966 1967 snl_init_writer(ss, &nw); 1968 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GETSTATES); 1969 hdr->nlmsg_flags |= NLM_F_DUMP; 1970 snl_add_msg_attr_string(&nw, PF_ST_IFNAME, filter->ifname); 1971 snl_add_msg_attr_u16(&nw, PF_ST_PROTO, filter->proto); 1972 snl_add_msg_attr_u8(&nw, PF_ST_AF, filter->af); 1973 snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_ADDR, &filter->addr.v6); 1974 snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_MASK, &filter->mask.v6); 1975 1976 hdr = snl_finalize_msg(&nw); 1977 if (hdr == NULL) 1978 return (ENOMEM); 1979 1980 uint32_t seq_id = hdr->nlmsg_seq; 1981 1982 snl_send_message(ss, hdr); 1983 1984 struct snl_errmsg_data e = {}; 1985 while ((hdr = snl_read_reply_multi(ss, seq_id, &e)) != NULL) { 1986 struct pfctl_state s; 1987 bzero(&s, sizeof(s)); 1988 if (!snl_parse_nlmsg(ss, hdr, &state_parser, &s)) 1989 continue; 1990 1991 ret = f(&s, arg); 1992 if (ret != 0) 1993 return (ret); 1994 } 1995 1996 return (0); 1997 } 1998 1999 int 2000 pfctl_get_states_iter(pfctl_get_state_fn f, void *arg) 2001 { 2002 struct pfctl_state_filter filter = {}; 2003 return (pfctl_get_filtered_states_iter(&filter, f, arg)); 2004 } 2005 2006 int 2007 pfctl_get_filtered_states_iter(struct pfctl_state_filter *filter, pfctl_get_state_fn f, void *arg) 2008 { 2009 struct snl_state ss = {}; 2010 int error; 2011 2012 snl_init(&ss, NETLINK_GENERIC); 2013 error = pfctl_get_states_nl(filter, &ss, f, arg); 2014 snl_free(&ss); 2015 2016 return (error); 2017 } 2018 2019 static int 2020 pfctl_append_states(struct pfctl_state *s, void *arg) 2021 { 2022 struct pfctl_state *new; 2023 struct pfctl_states *states = (struct pfctl_states *)arg; 2024 2025 new = malloc(sizeof(*s)); 2026 if (new == NULL) 2027 return (ENOMEM); 2028 2029 memcpy(new, s, sizeof(*s)); 2030 2031 TAILQ_INSERT_TAIL(&states->states, new, entry); 2032 2033 return (0); 2034 } 2035 2036 int 2037 pfctl_get_states(int dev __unused, struct pfctl_states *states) 2038 { 2039 int ret; 2040 2041 bzero(states, sizeof(*states)); 2042 TAILQ_INIT(&states->states); 2043 2044 ret = pfctl_get_states_iter(pfctl_append_states, states); 2045 if (ret != 0) { 2046 pfctl_free_states(states); 2047 return (ret); 2048 } 2049 2050 return (0); 2051 } 2052 2053 void 2054 pfctl_free_states(struct pfctl_states *states) 2055 { 2056 struct pfctl_state *s, *tmp; 2057 2058 TAILQ_FOREACH_SAFE(s, &states->states, entry, tmp) { 2059 free(s); 2060 } 2061 2062 bzero(states, sizeof(*states)); 2063 } 2064 2065 struct pfctl_nl_clear_states { 2066 uint32_t killed; 2067 }; 2068 #define _OUT(_field) offsetof(struct pfctl_nl_clear_states, _field) 2069 static struct snl_attr_parser ap_clear_states[] = { 2070 { .type = PF_CS_KILLED, .off = _OUT(killed), .cb = snl_attr_get_uint32 }, 2071 }; 2072 #undef _OUT 2073 SNL_DECLARE_PARSER(clear_states_parser, struct genlmsghdr, snl_f_p_empty, ap_clear_states); 2074 2075 static int 2076 _pfctl_clear_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill, 2077 unsigned int *killed, int cmd) 2078 { 2079 struct snl_writer nw; 2080 struct snl_errmsg_data e = {}; 2081 struct pfctl_nl_clear_states attrs = {}; 2082 struct nlmsghdr *hdr; 2083 uint32_t seq_id; 2084 int family_id; 2085 2086 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2087 if (family_id == 0) 2088 return (ENOTSUP); 2089 2090 snl_init_writer(&h->ss, &nw); 2091 hdr = snl_create_genl_msg_request(&nw, family_id, cmd); 2092 hdr->nlmsg_flags |= NLM_F_DUMP; 2093 2094 snl_add_msg_attr_u64(&nw, PF_CS_CMP_ID, kill->cmp.id); 2095 snl_add_msg_attr_u32(&nw, PF_CS_CMP_CREATORID, htonl(kill->cmp.creatorid)); 2096 snl_add_msg_attr_u8(&nw, PF_CS_CMP_DIR, kill->cmp.direction); 2097 snl_add_msg_attr_u8(&nw, PF_CS_AF, kill->af); 2098 snl_add_msg_attr_u8(&nw, PF_CS_PROTO, kill->proto); 2099 snl_add_msg_attr_rule_addr(&nw, PF_CS_SRC, &kill->src); 2100 snl_add_msg_attr_rule_addr(&nw, PF_CS_DST, &kill->dst); 2101 snl_add_msg_attr_rule_addr(&nw, PF_CS_RT_ADDR, &kill->rt_addr); 2102 snl_add_msg_attr_string(&nw, PF_CS_IFNAME, kill->ifname); 2103 snl_add_msg_attr_string(&nw, PF_CS_LABEL, kill->label); 2104 snl_add_msg_attr_bool(&nw, PF_CS_KILL_MATCH, kill->kill_match); 2105 snl_add_msg_attr_bool(&nw, PF_CS_NAT, kill->nat); 2106 2107 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2108 return (ENXIO); 2109 2110 seq_id = hdr->nlmsg_seq; 2111 2112 if (! snl_send_message(&h->ss, hdr)) 2113 return (ENXIO); 2114 2115 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2116 if (! snl_parse_nlmsg(&h->ss, hdr, &clear_states_parser, &attrs)) 2117 continue; 2118 } 2119 2120 if (killed) 2121 *killed = attrs.killed; 2122 2123 return (e.error); 2124 } 2125 2126 int 2127 pfctl_clear_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill, 2128 unsigned int *killed) 2129 { 2130 return(_pfctl_clear_states_h(h, kill, killed, PFNL_CMD_CLRSTATES)); 2131 } 2132 2133 int 2134 pfctl_kill_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill, 2135 unsigned int *killed) 2136 { 2137 return(_pfctl_clear_states_h(h, kill, killed, PFNL_CMD_KILLSTATES)); 2138 } 2139 2140 static int 2141 _pfctl_clear_states(int dev __unused, const struct pfctl_kill *kill, 2142 unsigned int *killed, uint64_t cmd) 2143 { 2144 struct pfctl_handle *h; 2145 int ret; 2146 2147 h = pfctl_open(PF_DEVICE); 2148 if (h == NULL) 2149 return (ENODEV); 2150 2151 ret = _pfctl_clear_states_h(h, kill, killed, cmd); 2152 pfctl_close(h); 2153 2154 return (ret); 2155 } 2156 2157 int 2158 pfctl_clear_states(int dev __unused, const struct pfctl_kill *kill, 2159 unsigned int *killed) 2160 { 2161 return (_pfctl_clear_states(dev, kill, killed, PFNL_CMD_CLRSTATES)); 2162 } 2163 2164 int 2165 pfctl_kill_states(int dev __unused, const struct pfctl_kill *kill, unsigned int *killed) 2166 { 2167 return (_pfctl_clear_states(dev, kill, killed, PFNL_CMD_KILLSTATES)); 2168 } 2169 2170 int 2171 pfctl_clear_rules(int dev, const char *anchorname) 2172 { 2173 struct pfioc_trans trans; 2174 struct pfioc_trans_e transe[2]; 2175 int ret; 2176 2177 bzero(&trans, sizeof(trans)); 2178 bzero(&transe, sizeof(transe)); 2179 2180 transe[0].rs_num = PF_RULESET_SCRUB; 2181 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor)) 2182 >= sizeof(transe[0].anchor)) 2183 return (E2BIG); 2184 2185 transe[1].rs_num = PF_RULESET_FILTER; 2186 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor)) 2187 >= sizeof(transe[1].anchor)) 2188 return (E2BIG); 2189 2190 trans.size = 2; 2191 trans.esize = sizeof(transe[0]); 2192 trans.array = transe; 2193 2194 ret = ioctl(dev, DIOCXBEGIN, &trans); 2195 if (ret != 0) 2196 return (errno); 2197 ret = ioctl(dev, DIOCXCOMMIT, &trans); 2198 if (ret != 0) 2199 return (errno); 2200 2201 return (0); 2202 } 2203 2204 int 2205 pfctl_clear_nat(int dev, const char *anchorname) 2206 { 2207 struct pfioc_trans trans; 2208 struct pfioc_trans_e transe[3]; 2209 int ret; 2210 2211 bzero(&trans, sizeof(trans)); 2212 bzero(&transe, sizeof(transe)); 2213 2214 transe[0].rs_num = PF_RULESET_NAT; 2215 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor)) 2216 >= sizeof(transe[0].anchor)) 2217 return (E2BIG); 2218 2219 transe[1].rs_num = PF_RULESET_BINAT; 2220 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor)) 2221 >= sizeof(transe[0].anchor)) 2222 return (E2BIG); 2223 2224 transe[2].rs_num = PF_RULESET_RDR; 2225 if (strlcpy(transe[2].anchor, anchorname, sizeof(transe[2].anchor)) 2226 >= sizeof(transe[2].anchor)) 2227 return (E2BIG); 2228 2229 trans.size = 3; 2230 trans.esize = sizeof(transe[0]); 2231 trans.array = transe; 2232 2233 ret = ioctl(dev, DIOCXBEGIN, &trans); 2234 if (ret != 0) 2235 return (errno); 2236 ret = ioctl(dev, DIOCXCOMMIT, &trans); 2237 if (ret != 0) 2238 return (errno); 2239 2240 return (0); 2241 } 2242 2243 int 2244 pfctl_clear_eth_rules(int dev, const char *anchorname) 2245 { 2246 struct pfioc_trans trans; 2247 struct pfioc_trans_e transe; 2248 int ret; 2249 2250 bzero(&trans, sizeof(trans)); 2251 bzero(&transe, sizeof(transe)); 2252 2253 transe.rs_num = PF_RULESET_ETH; 2254 if (strlcpy(transe.anchor, anchorname, sizeof(transe.anchor)) 2255 >= sizeof(transe.anchor)) 2256 return (E2BIG); 2257 2258 trans.size = 1; 2259 trans.esize = sizeof(transe); 2260 trans.array = &transe; 2261 2262 ret = ioctl(dev, DIOCXBEGIN, &trans); 2263 if (ret != 0) 2264 return (errno); 2265 ret = ioctl(dev, DIOCXCOMMIT, &trans); 2266 if (ret != 0) 2267 return (errno); 2268 2269 return (0); 2270 } 2271 2272 static int 2273 _pfctl_get_limit(int dev, const int index, uint *limit) 2274 { 2275 struct pfioc_limit pl; 2276 2277 bzero(&pl, sizeof(pl)); 2278 pl.index = index; 2279 2280 if (ioctl(dev, DIOCGETLIMIT, &pl) == -1) 2281 return (errno); 2282 2283 *limit = pl.limit; 2284 2285 return (0); 2286 } 2287 2288 int 2289 pfctl_set_syncookies(int dev, const struct pfctl_syncookies *s) 2290 { 2291 struct pfioc_nv nv; 2292 nvlist_t *nvl; 2293 int ret; 2294 uint state_limit; 2295 uint64_t lim, hi, lo; 2296 2297 ret = _pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit); 2298 if (ret != 0) 2299 return (ret); 2300 2301 if (state_limit == 0) 2302 state_limit = INT_MAX; 2303 2304 lim = state_limit; 2305 hi = lim * s->highwater / 100; 2306 lo = lim * s->lowwater / 100; 2307 2308 if (lo == hi) 2309 hi++; 2310 2311 nvl = nvlist_create(0); 2312 2313 nvlist_add_bool(nvl, "enabled", s->mode != PFCTL_SYNCOOKIES_NEVER); 2314 nvlist_add_bool(nvl, "adaptive", s->mode == PFCTL_SYNCOOKIES_ADAPTIVE); 2315 nvlist_add_number(nvl, "highwater", hi); 2316 nvlist_add_number(nvl, "lowwater", lo); 2317 2318 nv.data = nvlist_pack(nvl, &nv.len); 2319 nv.size = nv.len; 2320 nvlist_destroy(nvl); 2321 nvl = NULL; 2322 2323 ret = ioctl(dev, DIOCSETSYNCOOKIES, &nv); 2324 2325 free(nv.data); 2326 if (ret != 0) 2327 return (errno); 2328 2329 return (0); 2330 } 2331 2332 int 2333 pfctl_get_syncookies(int dev, struct pfctl_syncookies *s) 2334 { 2335 nvlist_t *nvl; 2336 int ret; 2337 uint state_limit; 2338 bool enabled, adaptive; 2339 2340 ret = _pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit); 2341 if (ret != 0) 2342 return (ret); 2343 2344 if (state_limit == 0) 2345 state_limit = INT_MAX; 2346 2347 bzero(s, sizeof(*s)); 2348 2349 nvl = nvlist_create(0); 2350 2351 if ((ret = pfctl_do_ioctl(dev, DIOCGETSYNCOOKIES, 256, &nvl)) != 0) { 2352 ret = errno; 2353 goto out; 2354 } 2355 2356 enabled = nvlist_get_bool(nvl, "enabled"); 2357 adaptive = nvlist_get_bool(nvl, "adaptive"); 2358 2359 if (enabled) { 2360 if (adaptive) 2361 s->mode = PFCTL_SYNCOOKIES_ADAPTIVE; 2362 else 2363 s->mode = PFCTL_SYNCOOKIES_ALWAYS; 2364 } else { 2365 s->mode = PFCTL_SYNCOOKIES_NEVER; 2366 } 2367 2368 s->highwater = nvlist_get_number(nvl, "highwater") * 100 / state_limit; 2369 s->lowwater = nvlist_get_number(nvl, "lowwater") * 100 / state_limit; 2370 s->halfopen_states = nvlist_get_number(nvl, "halfopen_states"); 2371 2372 out: 2373 nvlist_destroy(nvl); 2374 return (ret); 2375 } 2376 2377 int 2378 pfctl_table_add_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 2379 *addr, int size, int *nadd, int flags) 2380 { 2381 struct pfioc_table io; 2382 2383 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 2384 return (EINVAL); 2385 } 2386 bzero(&io, sizeof io); 2387 io.pfrio_flags = flags; 2388 io.pfrio_table = *tbl; 2389 io.pfrio_buffer = addr; 2390 io.pfrio_esize = sizeof(*addr); 2391 io.pfrio_size = size; 2392 2393 if (ioctl(dev, DIOCRADDADDRS, &io)) 2394 return (errno); 2395 if (nadd != NULL) 2396 *nadd = io.pfrio_nadd; 2397 return (0); 2398 } 2399 2400 int 2401 pfctl_table_del_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 2402 *addr, int size, int *ndel, int flags) 2403 { 2404 struct pfioc_table io; 2405 2406 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 2407 return (EINVAL); 2408 } 2409 bzero(&io, sizeof io); 2410 io.pfrio_flags = flags; 2411 io.pfrio_table = *tbl; 2412 io.pfrio_buffer = addr; 2413 io.pfrio_esize = sizeof(*addr); 2414 io.pfrio_size = size; 2415 2416 if (ioctl(dev, DIOCRDELADDRS, &io)) 2417 return (errno); 2418 if (ndel != NULL) 2419 *ndel = io.pfrio_ndel; 2420 return (0); 2421 } 2422 2423 int 2424 pfctl_table_set_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 2425 *addr, int size, int *size2, int *nadd, int *ndel, int *nchange, int flags) 2426 { 2427 struct pfioc_table io; 2428 2429 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 2430 return (EINVAL); 2431 } 2432 bzero(&io, sizeof io); 2433 io.pfrio_flags = flags; 2434 io.pfrio_table = *tbl; 2435 io.pfrio_buffer = addr; 2436 io.pfrio_esize = sizeof(*addr); 2437 io.pfrio_size = size; 2438 io.pfrio_size2 = (size2 != NULL) ? *size2 : 0; 2439 if (ioctl(dev, DIOCRSETADDRS, &io)) 2440 return (errno); 2441 if (nadd != NULL) 2442 *nadd = io.pfrio_nadd; 2443 if (ndel != NULL) 2444 *ndel = io.pfrio_ndel; 2445 if (nchange != NULL) 2446 *nchange = io.pfrio_nchange; 2447 if (size2 != NULL) 2448 *size2 = io.pfrio_size2; 2449 return (0); 2450 } 2451 2452 int pfctl_table_get_addrs(int dev, struct pfr_table *tbl, struct pfr_addr *addr, 2453 int *size, int flags) 2454 { 2455 struct pfioc_table io; 2456 2457 if (tbl == NULL || size == NULL || *size < 0 || 2458 (*size && addr == NULL)) { 2459 return (EINVAL); 2460 } 2461 bzero(&io, sizeof io); 2462 io.pfrio_flags = flags; 2463 io.pfrio_table = *tbl; 2464 io.pfrio_buffer = addr; 2465 io.pfrio_esize = sizeof(*addr); 2466 io.pfrio_size = *size; 2467 if (ioctl(dev, DIOCRGETADDRS, &io)) 2468 return (errno); 2469 *size = io.pfrio_size; 2470 return (0); 2471 } 2472 2473 int 2474 pfctl_set_statusif(struct pfctl_handle *h, const char *ifname) 2475 { 2476 struct snl_writer nw; 2477 struct snl_errmsg_data e = {}; 2478 struct nlmsghdr *hdr; 2479 uint32_t seq_id; 2480 int family_id; 2481 2482 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2483 if (family_id == 0) 2484 return (ENOTSUP); 2485 2486 snl_init_writer(&h->ss, &nw); 2487 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_STATUSIF); 2488 2489 snl_add_msg_attr_string(&nw, PF_SS_IFNAME, ifname); 2490 2491 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2492 return (ENXIO); 2493 2494 seq_id = hdr->nlmsg_seq; 2495 2496 if (! snl_send_message(&h->ss, hdr)) 2497 return (ENXIO); 2498 2499 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2500 } 2501 2502 return (e.error); 2503 } 2504 2505 #define _IN(_field) offsetof(struct genlmsghdr, _field) 2506 #define _OUT(_field) offsetof(struct pfctl_natlook, _field) 2507 static struct snl_attr_parser ap_natlook[] = { 2508 { .type = PF_NL_SRC_ADDR, .off = _OUT(saddr), .cb = snl_attr_get_in6_addr }, 2509 { .type = PF_NL_DST_ADDR, .off = _OUT(daddr), .cb = snl_attr_get_in6_addr }, 2510 { .type = PF_NL_SRC_PORT, .off = _OUT(sport), .cb = snl_attr_get_uint16 }, 2511 { .type = PF_NL_DST_PORT, .off = _OUT(dport), .cb = snl_attr_get_uint16 }, 2512 }; 2513 #undef _IN 2514 #undef _OUT 2515 SNL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, snl_f_p_empty, ap_natlook); 2516 2517 int 2518 pfctl_natlook(struct pfctl_handle *h, const struct pfctl_natlook_key *k, 2519 struct pfctl_natlook *r) 2520 { 2521 struct snl_writer nw; 2522 struct snl_errmsg_data e = {}; 2523 struct nlmsghdr *hdr; 2524 uint32_t seq_id; 2525 int family_id; 2526 2527 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2528 if (family_id == 0) 2529 return (ENOTSUP); 2530 2531 snl_init_writer(&h->ss, &nw); 2532 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_NATLOOK); 2533 hdr->nlmsg_flags |= NLM_F_DUMP; 2534 2535 snl_add_msg_attr_u8(&nw, PF_NL_AF, k->af); 2536 snl_add_msg_attr_u8(&nw, PF_NL_DIRECTION, k->direction); 2537 snl_add_msg_attr_u8(&nw, PF_NL_PROTO, k->proto); 2538 snl_add_msg_attr_ip6(&nw, PF_NL_SRC_ADDR, &k->saddr.v6); 2539 snl_add_msg_attr_ip6(&nw, PF_NL_DST_ADDR, &k->daddr.v6); 2540 snl_add_msg_attr_u16(&nw, PF_NL_SRC_PORT, k->sport); 2541 snl_add_msg_attr_u16(&nw, PF_NL_DST_PORT, k->dport); 2542 2543 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2544 return (ENXIO); 2545 2546 seq_id = hdr->nlmsg_seq; 2547 2548 if (! snl_send_message(&h->ss, hdr)) 2549 return (ENXIO); 2550 2551 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2552 if (! snl_parse_nlmsg(&h->ss, hdr, &natlook_parser, r)) 2553 continue; 2554 } 2555 2556 return (e.error); 2557 } 2558 2559 int 2560 pfctl_set_debug(struct pfctl_handle *h, uint32_t level) 2561 { 2562 struct snl_writer nw; 2563 struct snl_errmsg_data e = {}; 2564 struct nlmsghdr *hdr; 2565 uint32_t seq_id; 2566 int family_id; 2567 2568 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2569 if (family_id == 0) 2570 return (ENOTSUP); 2571 2572 snl_init_writer(&h->ss, &nw); 2573 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_DEBUG); 2574 2575 snl_add_msg_attr_u32(&nw, PF_SD_LEVEL, level); 2576 2577 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2578 return (ENXIO); 2579 2580 seq_id = hdr->nlmsg_seq; 2581 2582 if (! snl_send_message(&h->ss, hdr)) 2583 return (ENXIO); 2584 2585 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2586 } 2587 2588 return (e.error); 2589 } 2590 2591 int 2592 pfctl_set_timeout(struct pfctl_handle *h, uint32_t timeout, uint32_t seconds) 2593 { 2594 struct snl_writer nw; 2595 struct snl_errmsg_data e = {}; 2596 struct nlmsghdr *hdr; 2597 uint32_t seq_id; 2598 int family_id; 2599 2600 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2601 if (family_id == 0) 2602 return (ENOTSUP); 2603 2604 snl_init_writer(&h->ss, &nw); 2605 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_TIMEOUT); 2606 2607 snl_add_msg_attr_u32(&nw, PF_TO_TIMEOUT, timeout); 2608 snl_add_msg_attr_u32(&nw, PF_TO_SECONDS, seconds); 2609 2610 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2611 return (ENXIO); 2612 2613 seq_id = hdr->nlmsg_seq; 2614 2615 if (! snl_send_message(&h->ss, hdr)) 2616 return (ENXIO); 2617 2618 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2619 } 2620 2621 return (e.error); 2622 } 2623 2624 struct pfctl_nl_timeout { 2625 uint32_t seconds; 2626 }; 2627 #define _OUT(_field) offsetof(struct pfctl_nl_timeout, _field) 2628 static struct snl_attr_parser ap_get_timeout[] = { 2629 { .type = PF_TO_SECONDS, .off = _OUT(seconds), .cb = snl_attr_get_uint32 }, 2630 }; 2631 #undef _OUT 2632 SNL_DECLARE_PARSER(get_timeout_parser, struct genlmsghdr, snl_f_p_empty, ap_get_timeout); 2633 2634 int 2635 pfctl_get_timeout(struct pfctl_handle *h, uint32_t timeout, uint32_t *seconds) 2636 { 2637 struct snl_writer nw; 2638 struct pfctl_nl_timeout to = {}; 2639 struct snl_errmsg_data e = {}; 2640 struct nlmsghdr *hdr; 2641 uint32_t seq_id; 2642 int family_id; 2643 2644 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2645 if (family_id == 0) 2646 return (ENOTSUP); 2647 2648 snl_init_writer(&h->ss, &nw); 2649 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_TIMEOUT); 2650 hdr->nlmsg_flags |= NLM_F_DUMP; 2651 2652 snl_add_msg_attr_u32(&nw, PF_TO_TIMEOUT, timeout); 2653 2654 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2655 return (ENXIO); 2656 2657 seq_id = hdr->nlmsg_seq; 2658 2659 if (! snl_send_message(&h->ss, hdr)) 2660 return (ENXIO); 2661 2662 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2663 if (! snl_parse_nlmsg(&h->ss, hdr, &get_timeout_parser, &to)) 2664 continue; 2665 } 2666 2667 if (seconds != NULL) 2668 *seconds = to.seconds; 2669 2670 return (e.error); 2671 } 2672 2673 int 2674 pfctl_set_limit(struct pfctl_handle *h, const int index, const uint limit) 2675 { 2676 struct snl_writer nw; 2677 struct snl_errmsg_data e = {}; 2678 struct nlmsghdr *hdr; 2679 uint32_t seq_id; 2680 int family_id; 2681 2682 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2683 if (family_id == 0) 2684 return (ENOTSUP); 2685 2686 snl_init_writer(&h->ss, &nw); 2687 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_SET_LIMIT); 2688 2689 snl_add_msg_attr_u32(&nw, PF_LI_INDEX, index); 2690 snl_add_msg_attr_u32(&nw, PF_LI_LIMIT, limit); 2691 2692 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2693 return (ENXIO); 2694 2695 seq_id = hdr->nlmsg_seq; 2696 2697 if (! snl_send_message(&h->ss, hdr)) 2698 return (ENXIO); 2699 2700 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2701 } 2702 2703 return (e.error); 2704 } 2705 2706 struct pfctl_nl_limit { 2707 unsigned int limit; 2708 }; 2709 #define _OUT(_field) offsetof(struct pfctl_nl_limit, _field) 2710 static struct snl_attr_parser ap_get_limit[] = { 2711 { .type = PF_LI_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 }, 2712 }; 2713 #undef _OUT 2714 SNL_DECLARE_PARSER(get_limit_parser, struct genlmsghdr, snl_f_p_empty, ap_get_limit); 2715 2716 int 2717 pfctl_get_limit(struct pfctl_handle *h, const int index, uint *limit) 2718 { 2719 struct snl_writer nw; 2720 struct pfctl_nl_limit li = {}; 2721 struct snl_errmsg_data e = {}; 2722 struct nlmsghdr *hdr; 2723 uint32_t seq_id; 2724 int family_id; 2725 2726 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2727 if (family_id == 0) 2728 return (ENOTSUP); 2729 2730 snl_init_writer(&h->ss, &nw); 2731 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_LIMIT); 2732 hdr->nlmsg_flags |= NLM_F_DUMP; 2733 2734 snl_add_msg_attr_u32(&nw, PF_LI_INDEX, index); 2735 2736 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2737 return (ENXIO); 2738 2739 seq_id = hdr->nlmsg_seq; 2740 2741 if (! snl_send_message(&h->ss, hdr)) 2742 return (ENXIO); 2743 2744 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2745 if (! snl_parse_nlmsg(&h->ss, hdr, &get_limit_parser, &li)) 2746 continue; 2747 } 2748 2749 if (limit != NULL) 2750 *limit = li.limit; 2751 2752 return (e.error); 2753 } 2754 2755 struct pfctl_nl_begin_addrs { 2756 uint32_t ticket; 2757 }; 2758 #define _OUT(_field) offsetof(struct pfctl_nl_begin_addrs, _field) 2759 static struct snl_attr_parser ap_begin_addrs[] = { 2760 { .type = PF_BA_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 }, 2761 }; 2762 #undef _OUT 2763 SNL_DECLARE_PARSER(begin_addrs_parser, struct genlmsghdr, snl_f_p_empty, ap_begin_addrs); 2764 2765 int 2766 pfctl_begin_addrs(struct pfctl_handle *h, uint32_t *ticket) 2767 { 2768 struct snl_writer nw; 2769 struct pfctl_nl_begin_addrs attrs = {}; 2770 struct snl_errmsg_data e = {}; 2771 struct nlmsghdr *hdr; 2772 uint32_t seq_id; 2773 int family_id; 2774 2775 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2776 if (family_id == 0) 2777 return (ENOTSUP); 2778 2779 snl_init_writer(&h->ss, &nw); 2780 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_BEGIN_ADDRS); 2781 hdr->nlmsg_flags |= NLM_F_DUMP; 2782 2783 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2784 return (ENXIO); 2785 2786 seq_id = hdr->nlmsg_seq; 2787 2788 if (! snl_send_message(&h->ss, hdr)) 2789 return (ENXIO); 2790 2791 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2792 if (! snl_parse_nlmsg(&h->ss, hdr, &begin_addrs_parser, &attrs)) 2793 continue; 2794 } 2795 2796 if (ticket != NULL) 2797 *ticket = attrs.ticket; 2798 2799 return (e.error); 2800 } 2801 2802 int 2803 pfctl_add_addr(struct pfctl_handle *h, const struct pfioc_pooladdr *pa, int which) 2804 { 2805 struct snl_writer nw; 2806 struct snl_errmsg_data e = {}; 2807 struct nlmsghdr *hdr; 2808 uint32_t seq_id; 2809 int family_id; 2810 2811 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2812 if (family_id == 0) 2813 return (ENOTSUP); 2814 2815 snl_init_writer(&h->ss, &nw); 2816 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_ADD_ADDR); 2817 2818 snl_add_msg_attr_u32(&nw, PF_AA_ACTION, pa->action); 2819 snl_add_msg_attr_u32(&nw, PF_AA_TICKET, pa->ticket); 2820 snl_add_msg_attr_u32(&nw, PF_AA_NR, pa->nr); 2821 snl_add_msg_attr_u32(&nw, PF_AA_R_NUM, pa->r_num); 2822 snl_add_msg_attr_u8(&nw, PF_AA_R_ACTION, pa->r_action); 2823 snl_add_msg_attr_u8(&nw, PF_AA_R_LAST, pa->r_last); 2824 snl_add_msg_attr_u8(&nw, PF_AA_AF, pa->af); 2825 snl_add_msg_attr_string(&nw, PF_AA_ANCHOR, pa->anchor); 2826 snl_add_msg_attr_pool_addr(&nw, PF_AA_ADDR, &pa->addr); 2827 snl_add_msg_attr_u32(&nw, PF_AA_WHICH, which); 2828 2829 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2830 return (ENXIO); 2831 2832 seq_id = hdr->nlmsg_seq; 2833 2834 if (! snl_send_message(&h->ss, hdr)) 2835 return (ENXIO); 2836 2837 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2838 } 2839 2840 return (e.error); 2841 } 2842 2843 static const struct snl_attr_parser ap_get_addrs[] = { 2844 { .type = PF_AA_NR, .off = 0, .cb = snl_attr_get_uint32 }, 2845 }; 2846 SNL_DECLARE_PARSER(get_addrs_parser, struct genlmsghdr, snl_f_p_empty, ap_get_addrs); 2847 2848 int 2849 pfctl_get_addrs(struct pfctl_handle *h, uint32_t ticket, uint32_t r_num, 2850 uint8_t r_action, const char *anchor, uint32_t *nr, int which) 2851 { 2852 struct snl_writer nw; 2853 struct snl_errmsg_data e = {}; 2854 struct nlmsghdr *hdr; 2855 uint32_t seq_id; 2856 int family_id; 2857 2858 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2859 if (family_id == 0) 2860 return (ENOTSUP); 2861 2862 snl_init_writer(&h->ss, &nw); 2863 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_ADDRS); 2864 2865 snl_add_msg_attr_u32(&nw, PF_AA_TICKET, ticket); 2866 snl_add_msg_attr_u32(&nw, PF_AA_R_NUM, r_num); 2867 snl_add_msg_attr_u8(&nw, PF_AA_R_ACTION, r_action); 2868 snl_add_msg_attr_string(&nw, PF_AA_ANCHOR, anchor); 2869 snl_add_msg_attr_u32(&nw, PF_AA_WHICH, which); 2870 2871 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2872 return (ENXIO); 2873 2874 seq_id = hdr->nlmsg_seq; 2875 2876 if (! snl_send_message(&h->ss, hdr)) 2877 return (ENXIO); 2878 2879 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2880 if (! snl_parse_nlmsg(&h->ss, hdr, &get_addrs_parser, nr)) 2881 continue; 2882 } 2883 2884 return (e.error); 2885 } 2886 2887 #define _OUT(_field) offsetof(struct pf_pooladdr, _field) 2888 static const struct snl_attr_parser ap_pool_addr[] = { 2889 { .type = PF_PA_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = snl_attr_get_nested }, 2890 { .type = PF_PA_IFNAME, .off = _OUT(ifname), .arg_u32 = IFNAMSIZ, .cb = snl_attr_copy_string }, 2891 }; 2892 SNL_DECLARE_ATTR_PARSER(pool_addr_parser, ap_pool_addr); 2893 #undef _OUT 2894 2895 #define _OUT(_field) offsetof(struct pfioc_pooladdr, _field) 2896 static const struct snl_attr_parser ap_get_addr[] = { 2897 { .type = PF_AA_ACTION, .off = _OUT(action), .cb = snl_attr_get_uint32 }, 2898 { .type = PF_AA_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 }, 2899 { .type = PF_AA_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 }, 2900 { .type = PF_AA_R_NUM, .off = _OUT(r_num), .cb = snl_attr_get_uint32 }, 2901 { .type = PF_AA_R_ACTION, .off = _OUT(r_action), .cb = snl_attr_get_uint8 }, 2902 { .type = PF_AA_R_LAST, .off = _OUT(r_last), .cb = snl_attr_get_uint8 }, 2903 { .type = PF_AA_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 }, 2904 { .type = PF_AA_ANCHOR, .off = _OUT(anchor), .arg_u32 = MAXPATHLEN, .cb = snl_attr_copy_string }, 2905 { .type = PF_AA_ADDR, .off = _OUT(addr), .arg = &pool_addr_parser, .cb = snl_attr_get_nested }, 2906 }; 2907 SNL_DECLARE_PARSER(get_addr_parser, struct genlmsghdr, snl_f_p_empty, ap_get_addr); 2908 #undef _OUT 2909 2910 int 2911 pfctl_get_addr(struct pfctl_handle *h, uint32_t ticket, uint32_t r_num, 2912 uint8_t r_action, const char *anchor, uint32_t nr, struct pfioc_pooladdr *pa, 2913 int which) 2914 { 2915 struct snl_writer nw; 2916 struct snl_errmsg_data e = {}; 2917 struct nlmsghdr *hdr; 2918 uint32_t seq_id; 2919 int family_id; 2920 2921 family_id =snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2922 if (family_id == 0) 2923 return (ENOTSUP); 2924 2925 snl_init_writer(&h->ss, &nw); 2926 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_ADDR); 2927 2928 snl_add_msg_attr_u32(&nw, PF_AA_TICKET, ticket); 2929 snl_add_msg_attr_u32(&nw, PF_AA_R_NUM, r_num); 2930 snl_add_msg_attr_u8(&nw, PF_AA_R_ACTION, r_action); 2931 snl_add_msg_attr_string(&nw, PF_AA_ANCHOR, anchor); 2932 snl_add_msg_attr_u32(&nw, PF_AA_NR, nr); 2933 snl_add_msg_attr_u32(&nw, PF_AA_WHICH, which); 2934 2935 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2936 return (ENXIO); 2937 2938 seq_id = hdr->nlmsg_seq; 2939 2940 if (! snl_send_message(&h->ss, hdr)) 2941 return (ENXIO); 2942 2943 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2944 if (! snl_parse_nlmsg(&h->ss, hdr, &get_addr_parser, pa)) 2945 continue; 2946 } 2947 2948 return (e.error); 2949 } 2950 2951 #define _OUT(_field) offsetof(struct pfioc_ruleset, _field) 2952 static const struct snl_attr_parser ap_ruleset[] = { 2953 { .type = PF_RS_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 }, 2954 { .type = PF_RS_NAME, .off = _OUT(name), .arg = (void *)PF_ANCHOR_NAME_SIZE, .cb = snl_attr_copy_string }, 2955 }; 2956 SNL_DECLARE_PARSER(ruleset_parser, struct genlmsghdr, snl_f_p_empty, ap_ruleset); 2957 #undef _OUT 2958 2959 int 2960 pfctl_get_rulesets(struct pfctl_handle *h, const char *path, uint32_t *nr) 2961 { 2962 struct snl_writer nw; 2963 struct snl_errmsg_data e = {}; 2964 struct nlmsghdr *hdr; 2965 struct pfioc_ruleset rs = {}; 2966 uint32_t seq_id; 2967 int family_id; 2968 2969 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 2970 if (family_id == 0) 2971 return (ENOTSUP); 2972 2973 snl_init_writer(&h->ss, &nw); 2974 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_RULESETS); 2975 2976 snl_add_msg_attr_string(&nw, PF_RS_PATH, path); 2977 2978 if ((hdr = snl_finalize_msg(&nw)) == NULL) 2979 return (ENXIO); 2980 2981 seq_id = hdr->nlmsg_seq; 2982 2983 if (! snl_send_message(&h->ss, hdr)) 2984 return (ENXIO); 2985 2986 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2987 if (! snl_parse_nlmsg(&h->ss, hdr, &ruleset_parser, &rs)) 2988 continue; 2989 } 2990 2991 *nr = rs.nr; 2992 2993 return (e.error); 2994 } 2995 2996 int 2997 pfctl_get_ruleset(struct pfctl_handle *h, const char *path, uint32_t nr, struct pfioc_ruleset *rs) 2998 { 2999 struct snl_writer nw; 3000 struct snl_errmsg_data e = {}; 3001 struct nlmsghdr *hdr; 3002 uint32_t seq_id; 3003 int family_id; 3004 3005 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 3006 if (family_id == 0) 3007 return (ENOTSUP); 3008 3009 snl_init_writer(&h->ss, &nw); 3010 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_RULESET); 3011 3012 snl_add_msg_attr_string(&nw, PF_RS_PATH, path); 3013 snl_add_msg_attr_u32(&nw, PF_RS_NR, nr); 3014 3015 if ((hdr = snl_finalize_msg(&nw)) == NULL) 3016 return (ENXIO); 3017 3018 seq_id = hdr->nlmsg_seq; 3019 3020 if (! snl_send_message(&h->ss, hdr)) 3021 return (ENXIO); 3022 3023 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3024 if (! snl_parse_nlmsg(&h->ss, hdr, &ruleset_parser, rs)) 3025 continue; 3026 } 3027 3028 return (e.error); 3029 } 3030 3031 #define _OUT(_field) offsetof(struct pfctl_src_node, _field) 3032 static struct snl_attr_parser ap_srcnode[] = { 3033 { .type = PF_SN_ADDR, .off = _OUT(addr), .cb = snl_attr_get_in6_addr }, 3034 { .type = PF_SN_RADDR, .off = _OUT(raddr), .cb = snl_attr_get_in6_addr }, 3035 { .type = PF_SN_RULE_NR, .off = _OUT(rule), .cb = snl_attr_get_uint32 }, 3036 { .type = PF_SN_BYTES_IN, .off = _OUT(bytes[0]), .cb = snl_attr_get_uint64 }, 3037 { .type = PF_SN_BYTES_OUT, .off = _OUT(bytes[1]), .cb = snl_attr_get_uint64 }, 3038 { .type = PF_SN_PACKETS_IN, .off = _OUT(packets[0]), .cb = snl_attr_get_uint64 }, 3039 { .type = PF_SN_PACKETS_OUT, .off = _OUT(packets[1]), .cb = snl_attr_get_uint64 }, 3040 { .type = PF_SN_STATES, .off = _OUT(states), .cb = snl_attr_get_uint32 }, 3041 { .type = PF_SN_CONNECTIONS, .off = _OUT(conn), .cb = snl_attr_get_uint32 }, 3042 { .type = PF_SN_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 }, 3043 { .type = PF_SN_RULE_TYPE, .off = _OUT(ruletype), .cb = snl_attr_get_uint8 }, 3044 { .type = PF_SN_CREATION, .off = _OUT(creation), .cb = snl_attr_get_uint64 }, 3045 { .type = PF_SN_EXPIRE, .off = _OUT(expire), .cb = snl_attr_get_uint64 }, 3046 { .type = PF_SN_CONNECTION_RATE, .off = _OUT(conn_rate), .arg = &pfctl_threshold_parser, .cb = snl_attr_get_nested }, 3047 { .type = PF_SN_RAF, .off = _OUT(raf), .cb = snl_attr_get_uint8 }, 3048 { .type = PF_SN_NODE_TYPE, .off = _OUT(type), .cb = snl_attr_get_uint8 }, 3049 }; 3050 #undef _OUT 3051 SNL_DECLARE_PARSER(srcnode_parser, struct genlmsghdr, snl_f_p_empty, ap_srcnode); 3052 3053 int 3054 pfctl_get_srcnodes(struct pfctl_handle *h, pfctl_get_srcnode_fn fn, void *arg) 3055 { 3056 struct snl_writer nw; 3057 struct pfctl_src_node sn; 3058 struct snl_errmsg_data e = {}; 3059 struct nlmsghdr *hdr; 3060 uint32_t seq_id; 3061 int family_id; 3062 int ret; 3063 3064 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 3065 if (family_id == 0) 3066 return (ENOTSUP); 3067 3068 snl_init_writer(&h->ss, &nw); 3069 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_SRCNODES); 3070 3071 if ((hdr = snl_finalize_msg(&nw)) == NULL) 3072 return (ENXIO); 3073 3074 seq_id = hdr->nlmsg_seq; 3075 3076 if (!snl_send_message(&h->ss, hdr)) 3077 return (ENXIO); 3078 3079 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3080 bzero(&sn, sizeof(sn)); 3081 if (!snl_parse_nlmsg(&h->ss, hdr, &srcnode_parser, &sn)) 3082 continue; 3083 3084 ret = fn(&sn, arg); 3085 if (ret != 0) 3086 return (ret); 3087 } 3088 3089 return (e.error); 3090 } 3091 3092 static struct snl_attr_parser ap_ndel[] = { 3093 { .type = PF_T_NBR_DELETED, .off = 0, .cb = snl_attr_get_uint32 }, 3094 }; 3095 SNL_DECLARE_PARSER(ndel_parser, struct genlmsghdr, snl_f_p_empty, ap_ndel); 3096 3097 int 3098 pfctl_clear_tables(struct pfctl_handle *h, struct pfr_table *filter, 3099 int *ndel, int flags) 3100 { 3101 struct snl_writer nw; 3102 struct snl_errmsg_data e = {}; 3103 struct nlmsghdr *hdr; 3104 uint32_t seq_id; 3105 int family_id; 3106 3107 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 3108 if (family_id == 0) 3109 return (ENOTSUP); 3110 3111 snl_init_writer(&h->ss, &nw); 3112 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_CLEAR_TABLES); 3113 3114 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor); 3115 snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name); 3116 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags); 3117 snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags); 3118 3119 if ((hdr = snl_finalize_msg(&nw)) == NULL) 3120 return (ENXIO); 3121 3122 seq_id = hdr->nlmsg_seq; 3123 3124 if (!snl_send_message(&h->ss, hdr)) 3125 return (ENXIO); 3126 3127 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3128 if (!snl_parse_nlmsg(&h->ss, hdr, &ndel_parser, ndel)) 3129 continue; 3130 } 3131 3132 return (e.error); 3133 } 3134 3135 static struct snl_attr_parser ap_nadd[] = { 3136 { .type = PF_T_NBR_ADDED, .off = 0, .cb = snl_attr_get_uint32 }, 3137 }; 3138 SNL_DECLARE_PARSER(nadd_parser, struct genlmsghdr, snl_f_p_empty, ap_nadd); 3139 int 3140 pfctl_add_table(struct pfctl_handle *h, struct pfr_table *table, 3141 int *nadd, int flags) 3142 { 3143 struct snl_writer nw; 3144 struct snl_errmsg_data e = {}; 3145 struct nlmsghdr *hdr; 3146 uint32_t seq_id; 3147 int family_id; 3148 3149 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 3150 if (family_id == 0) 3151 return (ENOTSUP); 3152 3153 snl_init_writer(&h->ss, &nw); 3154 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_ADD_TABLE); 3155 3156 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, table->pfrt_anchor); 3157 snl_add_msg_attr_string(&nw, PF_T_NAME, table->pfrt_name); 3158 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, table->pfrt_flags); 3159 snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags); 3160 3161 if ((hdr = snl_finalize_msg(&nw)) == NULL) 3162 return (ENXIO); 3163 3164 seq_id = hdr->nlmsg_seq; 3165 3166 if (!snl_send_message(&h->ss, hdr)) 3167 return (ENXIO); 3168 3169 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3170 if (!snl_parse_nlmsg(&h->ss, hdr, &nadd_parser, nadd)) 3171 continue; 3172 } 3173 3174 return (e.error); 3175 } 3176 3177 int 3178 pfctl_del_table(struct pfctl_handle *h, struct pfr_table *table, 3179 int *ndel, int flags) 3180 { 3181 struct snl_writer nw; 3182 struct snl_errmsg_data e = {}; 3183 struct nlmsghdr *hdr; 3184 uint32_t seq_id; 3185 int family_id; 3186 3187 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 3188 if (family_id == 0) 3189 return (ENOTSUP); 3190 3191 snl_init_writer(&h->ss, &nw); 3192 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_DEL_TABLE); 3193 3194 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, table->pfrt_anchor); 3195 snl_add_msg_attr_string(&nw, PF_T_NAME, table->pfrt_name); 3196 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, table->pfrt_flags); 3197 snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags); 3198 3199 if ((hdr = snl_finalize_msg(&nw)) == NULL) 3200 return (ENXIO); 3201 3202 seq_id = hdr->nlmsg_seq; 3203 3204 if (!snl_send_message(&h->ss, hdr)) 3205 return (ENXIO); 3206 3207 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3208 if (!snl_parse_nlmsg(&h->ss, hdr, &ndel_parser, ndel)) 3209 continue; 3210 } 3211 3212 return (e.error); 3213 } 3214 3215 static bool 3216 snl_attr_get_uint64_into_int_array(struct snl_state *ss, struct nlattr *nla, 3217 const void *arg, void *target) 3218 { 3219 uint64_t *u64target; 3220 struct snl_uint64_array a = { 3221 .count = 0, 3222 .max = (size_t)arg, 3223 }; 3224 bool error; 3225 3226 u64target = malloc(a.max * sizeof(uint64_t)); 3227 a.array = u64target; 3228 3229 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &array_parser, &a); 3230 if (! error) 3231 return (error); 3232 3233 for (size_t i = 0; i < a.count; i++) 3234 ((int *)target)[i] = (int)u64target[i]; 3235 3236 free(u64target); 3237 3238 return (true); 3239 } 3240 3241 #define _OUT(_field) offsetof(struct pfr_table, _field) 3242 static const struct snl_attr_parser ap_table[] = { 3243 { .type = PF_T_ANCHOR, .off = _OUT(pfrt_anchor), .arg = (void *)MAXPATHLEN, .cb = snl_attr_copy_string }, 3244 { .type = PF_T_NAME, .off = _OUT(pfrt_name), .arg = (void *)PF_TABLE_NAME_SIZE, .cb =snl_attr_copy_string }, 3245 { .type = PF_T_TABLE_FLAGS, .off = _OUT(pfrt_flags), .cb = snl_attr_get_uint32 }, 3246 }; 3247 #undef _OUT 3248 SNL_DECLARE_ATTR_PARSER(table_parser, ap_table); 3249 #define _OUT(_field) offsetof(struct pfr_tstats, _field) 3250 static struct snl_attr_parser ap_tstats[] = { 3251 { .type = PF_TS_TABLE, .off = _OUT(pfrts_t), .arg = &table_parser, .cb = snl_attr_get_nested }, 3252 { .type = PF_TS_PACKETS, .off = _OUT(pfrts_packets), .arg = (void *)(PFR_DIR_MAX * PFR_OP_TABLE_MAX), .cb = snl_attr_get_uint64_array}, 3253 { .type = PF_TS_BYTES, .off = _OUT(pfrts_bytes), .arg = (void *)(PFR_DIR_MAX * PFR_OP_TABLE_MAX), .cb = snl_attr_get_uint64_array }, 3254 { .type = PF_TS_MATCH, .off = _OUT(pfrts_match), .cb = snl_attr_get_uint64 }, 3255 {. type = PF_TS_NOMATCH, .off = _OUT(pfrts_nomatch), .cb = snl_attr_get_uint64 }, 3256 { .type = PF_TS_TZERO, .off = _OUT(pfrts_tzero), .cb = snl_attr_get_uint64 }, 3257 { .type = PF_TS_REFCNT, .off = _OUT(pfrts_cnt), . arg = (void *)PFR_REFCNT_MAX, .cb = snl_attr_get_uint64_into_int_array }, 3258 }; 3259 #undef _OUT 3260 SNL_DECLARE_PARSER(tstats_parser, struct genlmsghdr, snl_f_p_empty, ap_tstats); 3261 3262 int 3263 pfctl_get_tstats(struct pfctl_handle *h, const struct pfr_table *filter, 3264 pfctl_get_tstats_fn fn, void *arg) 3265 { 3266 struct snl_writer nw; 3267 struct snl_errmsg_data e = {}; 3268 struct nlmsghdr *hdr; 3269 uint32_t seq_id; 3270 int family_id; 3271 int ret; 3272 3273 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 3274 if (family_id == 0) 3275 return (ENOTSUP); 3276 3277 snl_init_writer(&h->ss, &nw); 3278 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_GET_TSTATS); 3279 3280 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor); 3281 snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name); 3282 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags); 3283 3284 if ((hdr = snl_finalize_msg(&nw)) == NULL) 3285 return (ENXIO); 3286 3287 seq_id = hdr->nlmsg_seq; 3288 3289 if (!snl_send_message(&h->ss, hdr)) 3290 return (ENXIO); 3291 3292 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3293 struct pfr_tstats tstats = {}; 3294 3295 if (!snl_parse_nlmsg(&h->ss, hdr, &tstats_parser, &tstats)) 3296 continue; 3297 3298 ret = fn(&tstats, arg); 3299 if (ret != 0) 3300 break; 3301 } 3302 3303 return (e.error); 3304 } 3305 3306 static struct snl_attr_parser ap_tstats_clr[] = { 3307 { .type = PF_TS_NZERO, .off = 0, .cb = snl_attr_get_uint64 }, 3308 }; 3309 SNL_DECLARE_PARSER(tstats_clr_parser, struct genlmsghdr, snl_f_p_empty, ap_tstats_clr); 3310 3311 int 3312 pfctl_clear_tstats(struct pfctl_handle *h, const struct pfr_table *filter, 3313 int *nzero, int flags) 3314 { 3315 struct snl_writer nw; 3316 struct snl_errmsg_data e = {}; 3317 struct nlmsghdr *hdr; 3318 uint64_t zero; 3319 uint32_t seq_id; 3320 int family_id; 3321 3322 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 3323 if (family_id == 0) 3324 return (ENOTSUP); 3325 3326 snl_init_writer(&h->ss, &nw); 3327 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_CLR_TSTATS); 3328 3329 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor); 3330 snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name); 3331 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags); 3332 snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags); 3333 3334 if ((hdr = snl_finalize_msg(&nw)) == NULL) 3335 return (ENXIO); 3336 3337 seq_id = hdr->nlmsg_seq; 3338 3339 if (!snl_send_message(&h->ss, hdr)) 3340 return (ENXIO); 3341 3342 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3343 if (!snl_parse_nlmsg(&h->ss, hdr, &tstats_clr_parser, &zero)) 3344 continue; 3345 if (nzero) 3346 *nzero = (uint32_t)zero; 3347 } 3348 3349 return (e.error); 3350 } 3351 3352 static struct snl_attr_parser ap_clr_addrs[] = { 3353 { .type = PF_T_NBR_DELETED, .off = 0, .cb = snl_attr_get_uint64 }, 3354 }; 3355 SNL_DECLARE_PARSER(clr_addrs_parser, struct genlmsghdr, snl_f_p_empty, ap_clr_addrs); 3356 3357 int 3358 pfctl_clear_addrs(struct pfctl_handle *h, const struct pfr_table *filter, 3359 int *ndel, int flags) 3360 { 3361 struct snl_writer nw; 3362 struct snl_errmsg_data e = {}; 3363 struct nlmsghdr *hdr; 3364 uint64_t del; 3365 uint32_t seq_id; 3366 int family_id; 3367 3368 family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 3369 if (family_id == 0) 3370 return (ENOTSUP); 3371 3372 snl_init_writer(&h->ss, &nw); 3373 hdr = snl_create_genl_msg_request(&nw, family_id, PFNL_CMD_CLR_ADDRS); 3374 3375 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor); 3376 snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name); 3377 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags); 3378 snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags); 3379 3380 if ((hdr = snl_finalize_msg(&nw)) == NULL) 3381 return (ENXIO); 3382 3383 seq_id = hdr->nlmsg_seq; 3384 3385 if (!snl_send_message(&h->ss, hdr)) 3386 return (ENXIO); 3387 3388 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3389 if (!snl_parse_nlmsg(&h->ss, hdr, &clr_addrs_parser, &del)) 3390 continue; 3391 if (ndel) 3392 *ndel = (uint32_t)del; 3393 } 3394 3395 return (e.error); 3396 } 3397 3398