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 int family_id; 63 }; 64 65 const char* PFCTL_SYNCOOKIES_MODE_NAMES[] = { 66 "never", 67 "always", 68 "adaptive" 69 }; 70 71 static int _pfctl_clear_states(int , const struct pfctl_kill *, 72 unsigned int *, uint64_t); 73 static void _pfctl_verify_parsers(void); 74 75 struct pfctl_handle * 76 pfctl_open(const char *pf_device) 77 { 78 struct pfctl_handle *h; 79 80 _pfctl_verify_parsers(); 81 82 h = calloc(1, sizeof(struct pfctl_handle)); 83 84 h->fd = open(pf_device, O_RDWR); 85 if (h->fd < 0) 86 goto error; 87 88 if (!snl_init(&h->ss, NETLINK_GENERIC)) 89 goto error; 90 91 h->family_id = snl_get_genl_family(&h->ss, PFNL_FAMILY_NAME); 92 if (h->family_id == 0) 93 goto error; 94 95 return (h); 96 error: 97 if (h->fd != -1) 98 close(h->fd); 99 snl_free(&h->ss); 100 free(h); 101 102 return (NULL); 103 } 104 105 void 106 pfctl_close(struct pfctl_handle *h) 107 { 108 close(h->fd); 109 snl_free(&h->ss); 110 free(h); 111 } 112 113 int 114 pfctl_fd(struct pfctl_handle *h) 115 { 116 return (h->fd); 117 } 118 119 static int 120 pfctl_do_netlink_cmd(struct pfctl_handle *h, uint cmd) 121 { 122 struct snl_errmsg_data e = {}; 123 struct snl_writer nw; 124 struct nlmsghdr *hdr; 125 uint32_t seq_id; 126 127 snl_init_writer(&h->ss, &nw); 128 hdr = snl_create_genl_msg_request(&nw, h->family_id, cmd); 129 130 hdr = snl_finalize_msg(&nw); 131 if (hdr == NULL) { 132 e.error = ENOMEM; 133 goto out; 134 } 135 seq_id = hdr->nlmsg_seq; 136 137 if (! snl_send_message(&h->ss, hdr)) { 138 e.error = ENXIO; 139 goto out; 140 } 141 142 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 143 } 144 145 out: 146 snl_clear_lb(&h->ss); 147 return (e.error); 148 } 149 150 static int 151 pfctl_do_ioctl(int dev, uint cmd, size_t size, nvlist_t **nvl) 152 { 153 struct pfioc_nv nv; 154 void *data; 155 size_t nvlen; 156 int ret; 157 158 data = nvlist_pack(*nvl, &nvlen); 159 if (nvlen > size) 160 size = nvlen; 161 162 retry: 163 nv.data = malloc(size); 164 if (nv.data == NULL) { 165 ret = ENOMEM; 166 goto out; 167 } 168 169 memcpy(nv.data, data, nvlen); 170 171 nv.len = nvlen; 172 nv.size = size; 173 174 ret = ioctl(dev, cmd, &nv); 175 if (ret == -1 && errno == ENOSPC) { 176 size *= 2; 177 free(nv.data); 178 goto retry; 179 } 180 181 nvlist_destroy(*nvl); 182 *nvl = NULL; 183 184 if (ret == 0) { 185 *nvl = nvlist_unpack(nv.data, nv.len, 0); 186 if (*nvl == NULL) { 187 ret = EIO; 188 goto out; 189 } 190 } else { 191 ret = errno; 192 } 193 194 out: 195 free(data); 196 free(nv.data); 197 198 return (ret); 199 } 200 201 static void 202 pf_nvuint_8_array(const nvlist_t *nvl, const char *name, size_t maxelems, 203 uint8_t *numbers, size_t *nelems) 204 { 205 const uint64_t *tmp; 206 size_t elems; 207 208 tmp = nvlist_get_number_array(nvl, name, &elems); 209 assert(elems <= maxelems); 210 211 for (size_t i = 0; i < elems; i++) 212 numbers[i] = tmp[i]; 213 214 if (nelems) 215 *nelems = elems; 216 } 217 218 static void 219 pf_nvuint_16_array(const nvlist_t *nvl, const char *name, size_t maxelems, 220 uint16_t *numbers, size_t *nelems) 221 { 222 const uint64_t *tmp; 223 size_t elems; 224 225 tmp = nvlist_get_number_array(nvl, name, &elems); 226 assert(elems <= maxelems); 227 228 for (size_t i = 0; i < elems; i++) 229 numbers[i] = tmp[i]; 230 231 if (nelems) 232 *nelems = elems; 233 } 234 235 static void 236 pf_nvuint_32_array(const nvlist_t *nvl, const char *name, size_t maxelems, 237 uint32_t *numbers, size_t *nelems) 238 { 239 const uint64_t *tmp; 240 size_t elems; 241 242 tmp = nvlist_get_number_array(nvl, name, &elems); 243 244 for (size_t i = 0; i < elems && i < maxelems; i++) 245 numbers[i] = tmp[i]; 246 247 if (nelems) 248 *nelems = elems; 249 } 250 251 static void 252 pf_nvuint_64_array(const nvlist_t *nvl, const char *name, size_t maxelems, 253 uint64_t *numbers, size_t *nelems) 254 { 255 const uint64_t *tmp; 256 size_t elems; 257 258 tmp = nvlist_get_number_array(nvl, name, &elems); 259 assert(elems <= maxelems); 260 261 for (size_t i = 0; i < elems; i++) 262 numbers[i] = tmp[i]; 263 264 if (nelems) 265 *nelems = elems; 266 } 267 268 int 269 pfctl_startstop(struct pfctl_handle *h, int start) 270 { 271 return (pfctl_do_netlink_cmd(h, start ? PFNL_CMD_START : PFNL_CMD_STOP)); 272 } 273 274 static void 275 _pfctl_get_status_counters(const nvlist_t *nvl, 276 struct pfctl_status_counters *counters) 277 { 278 const uint64_t *ids, *counts; 279 const char *const *names; 280 size_t id_len, counter_len, names_len; 281 282 ids = nvlist_get_number_array(nvl, "ids", &id_len); 283 counts = nvlist_get_number_array(nvl, "counters", &counter_len); 284 names = nvlist_get_string_array(nvl, "names", &names_len); 285 assert(id_len == counter_len); 286 assert(counter_len == names_len); 287 288 TAILQ_INIT(counters); 289 290 for (size_t i = 0; i < id_len; i++) { 291 struct pfctl_status_counter *c; 292 293 c = malloc(sizeof(*c)); 294 if (c == NULL) 295 continue; 296 297 c->id = ids[i]; 298 c->counter = counts[i]; 299 c->name = strdup(names[i]); 300 301 TAILQ_INSERT_TAIL(counters, c, entry); 302 } 303 } 304 305 #define _OUT(_field) offsetof(struct pfctl_status_counter, _field) 306 static const struct snl_attr_parser ap_counter[] = { 307 { .type = PF_C_COUNTER, .off = _OUT(counter), .cb = snl_attr_get_uint64 }, 308 { .type = PF_C_NAME, .off = _OUT(name), .cb = snl_attr_get_string }, 309 { .type = PF_C_ID, .off = _OUT(id), .cb = snl_attr_get_uint32 }, 310 }; 311 SNL_DECLARE_ATTR_PARSER(counter_parser, ap_counter); 312 #undef _OUT 313 314 static bool 315 snl_attr_get_counters(struct snl_state *ss, struct nlattr *nla, 316 const void *arg __unused, void *target) 317 { 318 struct pfctl_status_counter counter = {}; 319 struct pfctl_status_counter *c; 320 bool error; 321 322 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &counter_parser, &counter); 323 if (! error) 324 return (error); 325 326 c = malloc(sizeof(*c)); 327 if (c == NULL) 328 return (false); 329 330 c->id = counter.id; 331 c->counter = counter.counter; 332 c->name = strdup(counter.name); 333 334 TAILQ_INSERT_TAIL((struct pfctl_status_counters *)target, c, entry); 335 336 return (error); 337 } 338 339 struct snl_uint64_array { 340 uint64_t *array; 341 size_t count; 342 size_t max; 343 }; 344 static bool 345 snl_attr_get_uint64_element(struct snl_state *ss, struct nlattr *nla, 346 const void *arg, void *target) 347 { 348 bool error; 349 uint64_t value; 350 struct snl_uint64_array *t = (struct snl_uint64_array *)target; 351 352 if (t->count >= t->max) 353 return (false); 354 355 error = snl_attr_get_uint64(ss, nla, arg, &value); 356 if (! error) 357 return (error); 358 359 t->array[t->count++] = value; 360 361 return (true); 362 } 363 364 static const struct snl_attr_parser ap_array[] = { 365 { .cb = snl_attr_get_uint64_element }, 366 }; 367 SNL_DECLARE_ATTR_PARSER(array_parser, ap_array); 368 static bool 369 snl_attr_get_uint64_array(struct snl_state *ss, struct nlattr *nla, 370 const void *arg, void *target) 371 { 372 struct snl_uint64_array a = { 373 .array = target, 374 .count = 0, 375 .max = (size_t)arg, 376 }; 377 bool error; 378 379 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &array_parser, &a); 380 if (! error) 381 return (error); 382 383 return (true); 384 } 385 386 #define _OUT(_field) offsetof(struct pfctl_status, _field) 387 static const struct snl_attr_parser ap_getstatus[] = { 388 { .type = PF_GS_IFNAME, .off = _OUT(ifname), .arg_u32 = IFNAMSIZ, .cb = snl_attr_copy_string }, 389 { .type = PF_GS_RUNNING, .off = _OUT(running), .cb = snl_attr_get_bool }, 390 { .type = PF_GS_SINCE, .off = _OUT(since), .cb = snl_attr_get_uint32 }, 391 { .type = PF_GS_DEBUG, .off = _OUT(debug), .cb = snl_attr_get_uint32 }, 392 { .type = PF_GS_HOSTID, .off = _OUT(hostid), .cb = snl_attr_get_uint32 }, 393 { .type = PF_GS_STATES, .off = _OUT(states), .cb = snl_attr_get_uint32 }, 394 { .type = PF_GS_SRC_NODES, .off = _OUT(src_nodes), .cb = snl_attr_get_uint32 }, 395 { .type = PF_GS_REASSEMBLE, .off = _OUT(reass), .cb = snl_attr_get_uint32 }, 396 { .type = PF_GS_SYNCOOKIES_ACTIVE, .off = _OUT(syncookies_active), .cb = snl_attr_get_uint32 }, 397 { .type = PF_GS_COUNTERS, .off = _OUT(counters), .cb = snl_attr_get_counters }, 398 { .type = PF_GS_LCOUNTERS, .off = _OUT(lcounters), .cb = snl_attr_get_counters }, 399 { .type = PF_GS_FCOUNTERS, .off = _OUT(fcounters), .cb = snl_attr_get_counters }, 400 { .type = PF_GS_SCOUNTERS, .off = _OUT(scounters), .cb = snl_attr_get_counters }, 401 { .type = PF_GS_CHKSUM, .off = _OUT(pf_chksum), .arg_u32 = PF_MD5_DIGEST_LENGTH, .cb = snl_attr_get_bytes }, 402 { .type = PF_GS_PCOUNTERS, .off = _OUT(pcounters), .arg_u32 = 2 * 2 * 2, .cb = snl_attr_get_uint64_array }, 403 { .type = PF_GS_BCOUNTERS, .off = _OUT(bcounters), .arg_u32 = 2 * 2, .cb = snl_attr_get_uint64_array }, 404 { .type = PF_GS_NCOUNTERS, .off = _OUT(ncounters), .cb = snl_attr_get_counters }, 405 { .type = PF_GS_FRAGMENTS, .off = _OUT(fragments), .cb = snl_attr_get_uint64 }, 406 }; 407 SNL_DECLARE_PARSER(getstatus_parser, struct genlmsghdr, snl_f_p_empty, ap_getstatus); 408 #undef _OUT 409 410 struct pfctl_status * 411 pfctl_get_status_h(struct pfctl_handle *h) 412 { 413 struct pfctl_status *status = NULL; 414 struct snl_errmsg_data e = {}; 415 struct nlmsghdr *hdr; 416 struct snl_writer nw; 417 uint32_t seq_id; 418 419 snl_init_writer(&h->ss, &nw); 420 hdr = snl_create_genl_msg_request(&nw, h->family_id, 421 PFNL_CMD_GET_STATUS); 422 hdr->nlmsg_flags |= NLM_F_DUMP; 423 424 hdr = snl_finalize_msg(&nw); 425 if (hdr == NULL) 426 goto out; 427 428 seq_id = hdr->nlmsg_seq; 429 if (! snl_send_message(&h->ss, hdr)) 430 goto out; 431 432 status = calloc(1, sizeof(*status)); 433 if (status == NULL) 434 goto out; 435 436 TAILQ_INIT(&status->counters); 437 TAILQ_INIT(&status->lcounters); 438 TAILQ_INIT(&status->fcounters); 439 TAILQ_INIT(&status->scounters); 440 TAILQ_INIT(&status->ncounters); 441 442 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 443 if (! snl_parse_nlmsg(&h->ss, hdr, &getstatus_parser, status)) 444 continue; 445 } 446 447 out: 448 snl_clear_lb(&h->ss); 449 return (status); 450 } 451 452 struct pfctl_status * 453 pfctl_get_status(int dev) 454 { 455 struct pfctl_status *status; 456 nvlist_t *nvl; 457 size_t len; 458 const void *chksum; 459 460 status = calloc(1, sizeof(*status)); 461 if (status == NULL) 462 return (NULL); 463 464 nvl = nvlist_create(0); 465 466 if (pfctl_do_ioctl(dev, DIOCGETSTATUSNV, 4096, &nvl)) { 467 nvlist_destroy(nvl); 468 free(status); 469 return (NULL); 470 } 471 472 status->running = nvlist_get_bool(nvl, "running"); 473 status->since = nvlist_get_number(nvl, "since"); 474 status->debug = nvlist_get_number(nvl, "debug"); 475 status->hostid = ntohl(nvlist_get_number(nvl, "hostid")); 476 status->states = nvlist_get_number(nvl, "states"); 477 status->src_nodes = nvlist_get_number(nvl, "src_nodes"); 478 status->syncookies_active = nvlist_get_bool(nvl, "syncookies_active"); 479 status->reass = nvlist_get_number(nvl, "reass"); 480 481 strlcpy(status->ifname, nvlist_get_string(nvl, "ifname"), 482 IFNAMSIZ); 483 chksum = nvlist_get_binary(nvl, "chksum", &len); 484 assert(len == PF_MD5_DIGEST_LENGTH); 485 memcpy(status->pf_chksum, chksum, len); 486 487 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "counters"), 488 &status->counters); 489 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "lcounters"), 490 &status->lcounters); 491 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "fcounters"), 492 &status->fcounters); 493 _pfctl_get_status_counters(nvlist_get_nvlist(nvl, "scounters"), 494 &status->scounters); 495 496 pf_nvuint_64_array(nvl, "pcounters", 2 * 2 * 2, 497 (uint64_t *)status->pcounters, NULL); 498 pf_nvuint_64_array(nvl, "bcounters", 2 * 2, 499 (uint64_t *)status->bcounters, NULL); 500 501 nvlist_destroy(nvl); 502 503 return (status); 504 } 505 int 506 pfctl_clear_status(struct pfctl_handle *h) 507 { 508 return (pfctl_do_netlink_cmd(h, PFNL_CMD_CLEAR_STATUS)); 509 } 510 511 static uint64_t 512 _pfctl_status_counter(struct pfctl_status_counters *counters, uint64_t id) 513 { 514 struct pfctl_status_counter *c; 515 516 TAILQ_FOREACH(c, counters, entry) { 517 if (c->id == id) 518 return (c->counter); 519 } 520 521 return (0); 522 } 523 524 uint64_t 525 pfctl_status_counter(struct pfctl_status *status, int id) 526 { 527 return (_pfctl_status_counter(&status->counters, id)); 528 } 529 530 uint64_t 531 pfctl_status_lcounter(struct pfctl_status *status, int id) 532 { 533 return (_pfctl_status_counter(&status->lcounters, id)); 534 } 535 536 uint64_t 537 pfctl_status_fcounter(struct pfctl_status *status, int id) 538 { 539 return (_pfctl_status_counter(&status->fcounters, id)); 540 } 541 542 uint64_t 543 pfctl_status_scounter(struct pfctl_status *status, int id) 544 { 545 return (_pfctl_status_counter(&status->scounters, id)); 546 } 547 548 void 549 pfctl_free_status(struct pfctl_status *status) 550 { 551 struct pfctl_status_counter *c, *tmp; 552 553 if (status == NULL) 554 return; 555 556 TAILQ_FOREACH_SAFE(c, &status->counters, entry, tmp) { 557 free(c->name); 558 free(c); 559 } 560 TAILQ_FOREACH_SAFE(c, &status->lcounters, entry, tmp) { 561 free(c->name); 562 free(c); 563 } 564 TAILQ_FOREACH_SAFE(c, &status->fcounters, entry, tmp) { 565 free(c->name); 566 free(c); 567 } 568 TAILQ_FOREACH_SAFE(c, &status->scounters, entry, tmp) { 569 free(c->name); 570 free(c); 571 } 572 TAILQ_FOREACH_SAFE(c, &status->ncounters, entry, tmp) { 573 free(c->name); 574 free(c); 575 } 576 577 free(status); 578 } 579 580 static void 581 pfctl_nv_add_addr(nvlist_t *nvparent, const char *name, 582 const struct pf_addr *addr) 583 { 584 nvlist_t *nvl = nvlist_create(0); 585 586 nvlist_add_binary(nvl, "addr", addr, sizeof(*addr)); 587 588 nvlist_add_nvlist(nvparent, name, nvl); 589 nvlist_destroy(nvl); 590 } 591 592 static void 593 pf_nvaddr_to_addr(const nvlist_t *nvl, struct pf_addr *addr) 594 { 595 size_t len; 596 const void *data; 597 598 data = nvlist_get_binary(nvl, "addr", &len); 599 assert(len == sizeof(struct pf_addr)); 600 memcpy(addr, data, len); 601 } 602 603 static void 604 pfctl_nv_add_addr_wrap(nvlist_t *nvparent, const char *name, 605 const struct pf_addr_wrap *addr) 606 { 607 nvlist_t *nvl = nvlist_create(0); 608 609 nvlist_add_number(nvl, "type", addr->type); 610 nvlist_add_number(nvl, "iflags", addr->iflags); 611 if (addr->type == PF_ADDR_DYNIFTL) 612 nvlist_add_string(nvl, "ifname", addr->v.ifname); 613 if (addr->type == PF_ADDR_TABLE) 614 nvlist_add_string(nvl, "tblname", addr->v.tblname); 615 pfctl_nv_add_addr(nvl, "addr", &addr->v.a.addr); 616 pfctl_nv_add_addr(nvl, "mask", &addr->v.a.mask); 617 618 nvlist_add_nvlist(nvparent, name, nvl); 619 nvlist_destroy(nvl); 620 } 621 622 static void 623 pf_nvaddr_wrap_to_addr_wrap(const nvlist_t *nvl, struct pf_addr_wrap *addr) 624 { 625 bzero(addr, sizeof(*addr)); 626 627 addr->type = nvlist_get_number(nvl, "type"); 628 addr->iflags = nvlist_get_number(nvl, "iflags"); 629 if (addr->type == PF_ADDR_DYNIFTL) { 630 strlcpy(addr->v.ifname, nvlist_get_string(nvl, "ifname"), 631 IFNAMSIZ); 632 addr->p.dyncnt = nvlist_get_number(nvl, "dyncnt"); 633 } 634 if (addr->type == PF_ADDR_TABLE) { 635 strlcpy(addr->v.tblname, nvlist_get_string(nvl, "tblname"), 636 PF_TABLE_NAME_SIZE); 637 addr->p.tblcnt = nvlist_get_number(nvl, "tblcnt"); 638 } 639 640 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &addr->v.a.addr); 641 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "mask"), &addr->v.a.mask); 642 } 643 644 static void 645 pfctl_nv_add_rule_addr(nvlist_t *nvparent, const char *name, 646 const struct pf_rule_addr *addr) 647 { 648 uint64_t ports[2]; 649 nvlist_t *nvl = nvlist_create(0); 650 651 pfctl_nv_add_addr_wrap(nvl, "addr", &addr->addr); 652 ports[0] = addr->port[0]; 653 ports[1] = addr->port[1]; 654 nvlist_add_number_array(nvl, "port", ports, 2); 655 nvlist_add_number(nvl, "neg", addr->neg); 656 nvlist_add_number(nvl, "port_op", addr->port_op); 657 658 nvlist_add_nvlist(nvparent, name, nvl); 659 nvlist_destroy(nvl); 660 } 661 662 static void 663 pf_nvrule_addr_to_rule_addr(const nvlist_t *nvl, struct pf_rule_addr *addr) 664 { 665 pf_nvaddr_wrap_to_addr_wrap(nvlist_get_nvlist(nvl, "addr"), &addr->addr); 666 667 pf_nvuint_16_array(nvl, "port", 2, addr->port, NULL); 668 addr->neg = nvlist_get_number(nvl, "neg"); 669 addr->port_op = nvlist_get_number(nvl, "port_op"); 670 } 671 672 static void 673 pf_nvmape_to_mape(const nvlist_t *nvl, struct pf_mape_portset *mape) 674 { 675 mape->offset = nvlist_get_number(nvl, "offset"); 676 mape->psidlen = nvlist_get_number(nvl, "psidlen"); 677 mape->psid = nvlist_get_number(nvl, "psid"); 678 } 679 680 static void 681 pf_nvpool_to_pool(const nvlist_t *nvl, struct pfctl_pool *pool) 682 { 683 size_t len; 684 const void *data; 685 686 data = nvlist_get_binary(nvl, "key", &len); 687 assert(len == sizeof(pool->key)); 688 memcpy(&pool->key, data, len); 689 690 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "counter"), &pool->counter); 691 692 pool->tblidx = nvlist_get_number(nvl, "tblidx"); 693 pf_nvuint_16_array(nvl, "proxy_port", 2, pool->proxy_port, NULL); 694 pool->opts = nvlist_get_number(nvl, "opts"); 695 696 if (nvlist_exists_nvlist(nvl, "mape")) 697 pf_nvmape_to_mape(nvlist_get_nvlist(nvl, "mape"), &pool->mape); 698 } 699 700 static void 701 pf_nvrule_uid_to_rule_uid(const nvlist_t *nvl, struct pf_rule_uid *uid) 702 { 703 pf_nvuint_32_array(nvl, "uid", 2, uid->uid, NULL); 704 uid->op = nvlist_get_number(nvl, "op"); 705 } 706 707 static void 708 pf_nvdivert_to_divert(const nvlist_t *nvl, struct pfctl_rule *rule) 709 { 710 pf_nvaddr_to_addr(nvlist_get_nvlist(nvl, "addr"), &rule->divert.addr); 711 rule->divert.port = nvlist_get_number(nvl, "port"); 712 } 713 714 static void 715 pf_nvrule_to_rule(const nvlist_t *nvl, struct pfctl_rule *rule) 716 { 717 const uint64_t *skip; 718 const char *const *labels; 719 size_t skipcount, labelcount; 720 721 rule->nr = nvlist_get_number(nvl, "nr"); 722 723 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "src"), &rule->src); 724 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "dst"), &rule->dst); 725 726 skip = nvlist_get_number_array(nvl, "skip", &skipcount); 727 assert(skip); 728 assert(skipcount == PF_SKIP_COUNT); 729 for (int i = 0; i < PF_SKIP_COUNT; i++) 730 rule->skip[i].nr = skip[i]; 731 732 labels = nvlist_get_string_array(nvl, "labels", &labelcount); 733 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT); 734 for (size_t i = 0; i < labelcount; i++) 735 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE); 736 rule->ridentifier = nvlist_get_number(nvl, "ridentifier"); 737 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ); 738 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE); 739 strlcpy(rule->pqname, nvlist_get_string(nvl, "pqname"), PF_QNAME_SIZE); 740 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"), 741 PF_TAG_NAME_SIZE); 742 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"), 743 PF_TAG_NAME_SIZE); 744 745 strlcpy(rule->overload_tblname, nvlist_get_string(nvl, "overload_tblname"), 746 PF_TABLE_NAME_SIZE); 747 748 pf_nvpool_to_pool(nvlist_get_nvlist(nvl, "rpool"), &rule->rdr); 749 750 rule->evaluations = nvlist_get_number(nvl, "evaluations"); 751 pf_nvuint_64_array(nvl, "packets", 2, rule->packets, NULL); 752 pf_nvuint_64_array(nvl, "bytes", 2, rule->bytes, NULL); 753 754 if (nvlist_exists_number(nvl, "timestamp")) { 755 rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp"); 756 } 757 758 rule->os_fingerprint = nvlist_get_number(nvl, "os_fingerprint"); 759 760 rule->rtableid = nvlist_get_number(nvl, "rtableid"); 761 pf_nvuint_32_array(nvl, "timeout", PFTM_MAX, rule->timeout, NULL); 762 rule->max_states = nvlist_get_number(nvl, "max_states"); 763 rule->max_src_nodes = nvlist_get_number(nvl, "max_src_nodes"); 764 rule->max_src_states = nvlist_get_number(nvl, "max_src_states"); 765 rule->max_src_conn = nvlist_get_number(nvl, "max_src_conn"); 766 rule->max_src_conn_rate.limit = 767 nvlist_get_number(nvl, "max_src_conn_rate.limit"); 768 rule->max_src_conn_rate.seconds = 769 nvlist_get_number(nvl, "max_src_conn_rate.seconds"); 770 rule->qid = nvlist_get_number(nvl, "qid"); 771 rule->pqid = nvlist_get_number(nvl, "pqid"); 772 rule->dnpipe = nvlist_get_number(nvl, "dnpipe"); 773 rule->dnrpipe = nvlist_get_number(nvl, "dnrpipe"); 774 rule->free_flags = nvlist_get_number(nvl, "dnflags"); 775 rule->prob = nvlist_get_number(nvl, "prob"); 776 rule->cuid = nvlist_get_number(nvl, "cuid"); 777 rule->cpid = nvlist_get_number(nvl, "cpid"); 778 779 rule->return_icmp = nvlist_get_number(nvl, "return_icmp"); 780 rule->return_icmp6 = nvlist_get_number(nvl, "return_icmp6"); 781 rule->max_mss = nvlist_get_number(nvl, "max_mss"); 782 rule->scrub_flags = nvlist_get_number(nvl, "scrub_flags"); 783 784 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "uid"), &rule->uid); 785 pf_nvrule_uid_to_rule_uid(nvlist_get_nvlist(nvl, "gid"), 786 (struct pf_rule_uid *)&rule->gid); 787 788 rule->rule_flag = nvlist_get_number(nvl, "rule_flag"); 789 rule->action = nvlist_get_number(nvl, "action"); 790 rule->direction = nvlist_get_number(nvl, "direction"); 791 rule->log = nvlist_get_number(nvl, "log"); 792 rule->logif = nvlist_get_number(nvl, "logif"); 793 rule->quick = nvlist_get_number(nvl, "quick"); 794 rule->ifnot = nvlist_get_number(nvl, "ifnot"); 795 rule->match_tag_not = nvlist_get_number(nvl, "match_tag_not"); 796 rule->natpass = nvlist_get_number(nvl, "natpass"); 797 798 rule->keep_state = nvlist_get_number(nvl, "keep_state"); 799 rule->af = nvlist_get_number(nvl, "af"); 800 rule->proto = nvlist_get_number(nvl, "proto"); 801 rule->type = nvlist_get_number(nvl, "type"); 802 rule->code = nvlist_get_number(nvl, "code"); 803 rule->flags = nvlist_get_number(nvl, "flags"); 804 rule->flagset = nvlist_get_number(nvl, "flagset"); 805 rule->min_ttl = nvlist_get_number(nvl, "min_ttl"); 806 rule->allow_opts = nvlist_get_number(nvl, "allow_opts"); 807 rule->rt = nvlist_get_number(nvl, "rt"); 808 rule->return_ttl = nvlist_get_number(nvl, "return_ttl"); 809 rule->tos = nvlist_get_number(nvl, "tos"); 810 rule->set_tos = nvlist_get_number(nvl, "set_tos"); 811 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative"); 812 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard"); 813 814 rule->flush = nvlist_get_number(nvl, "flush"); 815 rule->prio = nvlist_get_number(nvl, "prio"); 816 pf_nvuint_8_array(nvl, "set_prio", 2, rule->set_prio, NULL); 817 818 pf_nvdivert_to_divert(nvlist_get_nvlist(nvl, "divert"), rule); 819 820 rule->states_cur = nvlist_get_number(nvl, "states_cur"); 821 rule->states_tot = nvlist_get_number(nvl, "states_tot"); 822 rule->src_nodes = nvlist_get_number(nvl, "src_nodes"); 823 } 824 825 static void 826 pfctl_nveth_addr_to_eth_addr(const nvlist_t *nvl, struct pfctl_eth_addr *addr) 827 { 828 static const u_int8_t EMPTY_MAC[ETHER_ADDR_LEN] = { 0 }; 829 size_t len; 830 const void *data; 831 832 data = nvlist_get_binary(nvl, "addr", &len); 833 assert(len == sizeof(addr->addr)); 834 memcpy(addr->addr, data, sizeof(addr->addr)); 835 836 data = nvlist_get_binary(nvl, "mask", &len); 837 assert(len == sizeof(addr->mask)); 838 memcpy(addr->mask, data, sizeof(addr->mask)); 839 840 addr->neg = nvlist_get_bool(nvl, "neg"); 841 842 /* To make checks for 'is this address set?' easier. */ 843 addr->isset = memcmp(addr->addr, EMPTY_MAC, ETHER_ADDR_LEN) != 0; 844 } 845 846 static nvlist_t * 847 pfctl_eth_addr_to_nveth_addr(const struct pfctl_eth_addr *addr) 848 { 849 nvlist_t *nvl; 850 851 nvl = nvlist_create(0); 852 if (nvl == NULL) 853 return (NULL); 854 855 nvlist_add_bool(nvl, "neg", addr->neg); 856 nvlist_add_binary(nvl, "addr", &addr->addr, ETHER_ADDR_LEN); 857 nvlist_add_binary(nvl, "mask", &addr->mask, ETHER_ADDR_LEN); 858 859 return (nvl); 860 } 861 862 static void 863 pfctl_nveth_rule_to_eth_rule(const nvlist_t *nvl, struct pfctl_eth_rule *rule) 864 { 865 const char *const *labels; 866 size_t labelcount, i; 867 868 rule->nr = nvlist_get_number(nvl, "nr"); 869 rule->quick = nvlist_get_bool(nvl, "quick"); 870 strlcpy(rule->ifname, nvlist_get_string(nvl, "ifname"), IFNAMSIZ); 871 rule->ifnot = nvlist_get_bool(nvl, "ifnot"); 872 rule->direction = nvlist_get_number(nvl, "direction"); 873 rule->proto = nvlist_get_number(nvl, "proto"); 874 strlcpy(rule->match_tagname, nvlist_get_string(nvl, "match_tagname"), 875 PF_TAG_NAME_SIZE); 876 rule->match_tag = nvlist_get_number(nvl, "match_tag"); 877 rule->match_tag_not = nvlist_get_bool(nvl, "match_tag_not"); 878 879 labels = nvlist_get_string_array(nvl, "labels", &labelcount); 880 assert(labelcount <= PF_RULE_MAX_LABEL_COUNT); 881 for (i = 0; i < labelcount; i++) 882 strlcpy(rule->label[i], labels[i], PF_RULE_LABEL_SIZE); 883 rule->ridentifier = nvlist_get_number(nvl, "ridentifier"); 884 885 pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "src"), 886 &rule->src); 887 pfctl_nveth_addr_to_eth_addr(nvlist_get_nvlist(nvl, "dst"), 888 &rule->dst); 889 890 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipsrc"), 891 &rule->ipsrc); 892 pf_nvrule_addr_to_rule_addr(nvlist_get_nvlist(nvl, "ipdst"), 893 &rule->ipdst); 894 895 rule->evaluations = nvlist_get_number(nvl, "evaluations"); 896 rule->packets[0] = nvlist_get_number(nvl, "packets-in"); 897 rule->packets[1] = nvlist_get_number(nvl, "packets-out"); 898 rule->bytes[0] = nvlist_get_number(nvl, "bytes-in"); 899 rule->bytes[1] = nvlist_get_number(nvl, "bytes-out"); 900 901 if (nvlist_exists_number(nvl, "timestamp")) { 902 rule->last_active_timestamp = nvlist_get_number(nvl, "timestamp"); 903 } 904 905 strlcpy(rule->qname, nvlist_get_string(nvl, "qname"), PF_QNAME_SIZE); 906 strlcpy(rule->tagname, nvlist_get_string(nvl, "tagname"), 907 PF_TAG_NAME_SIZE); 908 909 rule->dnpipe = nvlist_get_number(nvl, "dnpipe"); 910 rule->dnflags = nvlist_get_number(nvl, "dnflags"); 911 912 rule->anchor_relative = nvlist_get_number(nvl, "anchor_relative"); 913 rule->anchor_wildcard = nvlist_get_number(nvl, "anchor_wildcard"); 914 915 strlcpy(rule->bridge_to, nvlist_get_string(nvl, "bridge_to"), 916 IFNAMSIZ); 917 918 rule->action = nvlist_get_number(nvl, "action"); 919 } 920 921 int 922 pfctl_get_eth_rulesets_info(int dev, struct pfctl_eth_rulesets_info *ri, 923 const char *path) 924 { 925 nvlist_t *nvl; 926 int ret; 927 928 bzero(ri, sizeof(*ri)); 929 930 nvl = nvlist_create(0); 931 nvlist_add_string(nvl, "path", path); 932 933 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESETS, 256, &nvl)) != 0) 934 goto out; 935 936 ri->nr = nvlist_get_number(nvl, "nr"); 937 938 out: 939 nvlist_destroy(nvl); 940 return (ret); 941 } 942 943 int 944 pfctl_get_eth_ruleset(int dev, const char *path, int nr, 945 struct pfctl_eth_ruleset_info *ri) 946 { 947 nvlist_t *nvl; 948 int ret; 949 950 bzero(ri, sizeof(*ri)); 951 952 nvl = nvlist_create(0); 953 nvlist_add_string(nvl, "path", path); 954 nvlist_add_number(nvl, "nr", nr); 955 956 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULESET, 1024, &nvl)) != 0) 957 goto out; 958 959 ri->nr = nvlist_get_number(nvl, "nr"); 960 strlcpy(ri->path, nvlist_get_string(nvl, "path"), MAXPATHLEN); 961 strlcpy(ri->name, nvlist_get_string(nvl, "name"), 962 PF_ANCHOR_NAME_SIZE); 963 964 out: 965 nvlist_destroy(nvl); 966 return (ret); 967 } 968 969 int 970 pfctl_get_eth_rules_info(int dev, struct pfctl_eth_rules_info *rules, 971 const char *path) 972 { 973 nvlist_t *nvl; 974 int ret; 975 976 bzero(rules, sizeof(*rules)); 977 978 nvl = nvlist_create(0); 979 nvlist_add_string(nvl, "anchor", path); 980 981 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULES, 1024, &nvl)) != 0) 982 goto out; 983 984 rules->nr = nvlist_get_number(nvl, "nr"); 985 rules->ticket = nvlist_get_number(nvl, "ticket"); 986 987 out: 988 nvlist_destroy(nvl); 989 return (ret); 990 } 991 992 int 993 pfctl_get_eth_rule(int dev, uint32_t nr, uint32_t ticket, 994 const char *path, struct pfctl_eth_rule *rule, bool clear, 995 char *anchor_call) 996 { 997 nvlist_t *nvl; 998 int ret; 999 1000 nvl = nvlist_create(0); 1001 1002 nvlist_add_string(nvl, "anchor", path); 1003 nvlist_add_number(nvl, "ticket", ticket); 1004 nvlist_add_number(nvl, "nr", nr); 1005 nvlist_add_bool(nvl, "clear", clear); 1006 1007 if ((ret = pfctl_do_ioctl(dev, DIOCGETETHRULE, 4096, &nvl)) != 0) 1008 goto out; 1009 1010 pfctl_nveth_rule_to_eth_rule(nvl, rule); 1011 1012 if (anchor_call) 1013 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"), 1014 MAXPATHLEN); 1015 1016 out: 1017 nvlist_destroy(nvl); 1018 return (ret); 1019 } 1020 1021 int 1022 pfctl_add_eth_rule(int dev, const struct pfctl_eth_rule *r, const char *anchor, 1023 const char *anchor_call, uint32_t ticket) 1024 { 1025 struct pfioc_nv nv; 1026 nvlist_t *nvl, *addr; 1027 void *packed; 1028 int error = 0; 1029 size_t labelcount, size; 1030 1031 nvl = nvlist_create(0); 1032 1033 nvlist_add_number(nvl, "ticket", ticket); 1034 nvlist_add_string(nvl, "anchor", anchor); 1035 nvlist_add_string(nvl, "anchor_call", anchor_call); 1036 1037 nvlist_add_number(nvl, "nr", r->nr); 1038 nvlist_add_bool(nvl, "quick", r->quick); 1039 nvlist_add_string(nvl, "ifname", r->ifname); 1040 nvlist_add_bool(nvl, "ifnot", r->ifnot); 1041 nvlist_add_number(nvl, "direction", r->direction); 1042 nvlist_add_number(nvl, "proto", r->proto); 1043 nvlist_add_string(nvl, "match_tagname", r->match_tagname); 1044 nvlist_add_bool(nvl, "match_tag_not", r->match_tag_not); 1045 1046 addr = pfctl_eth_addr_to_nveth_addr(&r->src); 1047 if (addr == NULL) { 1048 nvlist_destroy(nvl); 1049 return (ENOMEM); 1050 } 1051 nvlist_add_nvlist(nvl, "src", addr); 1052 nvlist_destroy(addr); 1053 1054 addr = pfctl_eth_addr_to_nveth_addr(&r->dst); 1055 if (addr == NULL) { 1056 nvlist_destroy(nvl); 1057 return (ENOMEM); 1058 } 1059 nvlist_add_nvlist(nvl, "dst", addr); 1060 nvlist_destroy(addr); 1061 1062 pfctl_nv_add_rule_addr(nvl, "ipsrc", &r->ipsrc); 1063 pfctl_nv_add_rule_addr(nvl, "ipdst", &r->ipdst); 1064 1065 labelcount = 0; 1066 while (labelcount < PF_RULE_MAX_LABEL_COUNT && 1067 r->label[labelcount][0] != 0) { 1068 nvlist_append_string_array(nvl, "labels", 1069 r->label[labelcount]); 1070 labelcount++; 1071 } 1072 nvlist_add_number(nvl, "ridentifier", r->ridentifier); 1073 1074 nvlist_add_string(nvl, "qname", r->qname); 1075 nvlist_add_string(nvl, "tagname", r->tagname); 1076 nvlist_add_number(nvl, "dnpipe", r->dnpipe); 1077 nvlist_add_number(nvl, "dnflags", r->dnflags); 1078 1079 nvlist_add_string(nvl, "bridge_to", r->bridge_to); 1080 1081 nvlist_add_number(nvl, "action", r->action); 1082 1083 packed = nvlist_pack(nvl, &size); 1084 if (packed == NULL) { 1085 nvlist_destroy(nvl); 1086 return (ENOMEM); 1087 } 1088 1089 nv.len = size; 1090 nv.size = size; 1091 nv.data = packed; 1092 1093 if (ioctl(dev, DIOCADDETHRULE, &nv) != 0) 1094 error = errno; 1095 1096 free(packed); 1097 nvlist_destroy(nvl); 1098 1099 return (error); 1100 } 1101 1102 static void 1103 snl_add_msg_attr_addr_wrap(struct snl_writer *nw, uint32_t type, const struct pf_addr_wrap *addr) 1104 { 1105 int off; 1106 1107 off = snl_add_msg_attr_nested(nw, type); 1108 1109 snl_add_msg_attr_ip6(nw, PF_AT_ADDR, &addr->v.a.addr.v6); 1110 snl_add_msg_attr_ip6(nw, PF_AT_MASK, &addr->v.a.mask.v6); 1111 1112 if (addr->type == PF_ADDR_DYNIFTL) 1113 snl_add_msg_attr_string(nw, PF_AT_IFNAME, addr->v.ifname); 1114 if (addr->type == PF_ADDR_TABLE) 1115 snl_add_msg_attr_string(nw, PF_AT_TABLENAME, addr->v.tblname); 1116 snl_add_msg_attr_u8(nw, PF_AT_TYPE, addr->type); 1117 snl_add_msg_attr_u8(nw, PF_AT_IFLAGS, addr->iflags); 1118 1119 snl_end_attr_nested(nw, off); 1120 } 1121 1122 static void 1123 snl_add_msg_attr_pool_addr(struct snl_writer *nw, uint32_t type, const struct pf_pooladdr *pa) 1124 { 1125 int off; 1126 1127 off = snl_add_msg_attr_nested(nw, type); 1128 1129 snl_add_msg_attr_string(nw, PF_PA_IFNAME, pa->ifname); 1130 snl_add_msg_attr_addr_wrap(nw, PF_PA_ADDR, &pa->addr); 1131 1132 snl_end_attr_nested(nw, off); 1133 } 1134 1135 static void 1136 snl_add_msg_attr_rule_addr(struct snl_writer *nw, uint32_t type, const struct pf_rule_addr *addr) 1137 { 1138 int off; 1139 1140 off = snl_add_msg_attr_nested(nw, type); 1141 1142 snl_add_msg_attr_addr_wrap(nw, PF_RAT_ADDR, &addr->addr); 1143 snl_add_msg_attr_u16(nw, PF_RAT_SRC_PORT, addr->port[0]); 1144 snl_add_msg_attr_u16(nw, PF_RAT_DST_PORT, addr->port[1]); 1145 snl_add_msg_attr_u8(nw, PF_RAT_NEG, addr->neg); 1146 snl_add_msg_attr_u8(nw, PF_RAT_OP, addr->port_op); 1147 1148 snl_end_attr_nested(nw, off); 1149 } 1150 1151 static void 1152 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]) 1153 { 1154 int off, i = 0; 1155 1156 off = snl_add_msg_attr_nested(nw, type); 1157 1158 while (i < PF_RULE_MAX_LABEL_COUNT && 1159 labels[i][0] != 0) { 1160 snl_add_msg_attr_string(nw, PF_LT_LABEL, labels[i]); 1161 i++; 1162 } 1163 1164 snl_end_attr_nested(nw, off); 1165 } 1166 1167 static void 1168 snl_add_msg_attr_mape(struct snl_writer *nw, uint32_t type, const struct pf_mape_portset *me) 1169 { 1170 int off; 1171 1172 off = snl_add_msg_attr_nested(nw, type); 1173 1174 snl_add_msg_attr_u8(nw, PF_MET_OFFSET, me->offset); 1175 snl_add_msg_attr_u8(nw, PF_MET_PSID_LEN, me->psidlen); 1176 snl_add_msg_attr_u16(nw, PF_MET_PSID, me->psid); 1177 1178 snl_end_attr_nested(nw, off); 1179 } 1180 1181 static void 1182 snl_add_msg_attr_rpool(struct snl_writer *nw, uint32_t type, const struct pfctl_pool *pool) 1183 { 1184 int off; 1185 1186 off = snl_add_msg_attr_nested(nw, type); 1187 1188 snl_add_msg_attr(nw, PF_PT_KEY, sizeof(pool->key), &pool->key); 1189 snl_add_msg_attr_ip6(nw, PF_PT_COUNTER, &pool->counter.v6); 1190 snl_add_msg_attr_u32(nw, PF_PT_TBLIDX, pool->tblidx); 1191 snl_add_msg_attr_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]); 1192 snl_add_msg_attr_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]); 1193 snl_add_msg_attr_u8(nw, PF_PT_OPTS, pool->opts); 1194 snl_add_msg_attr_mape(nw, PF_PT_MAPE, &pool->mape); 1195 1196 snl_end_attr_nested(nw, off); 1197 } 1198 1199 static void 1200 snl_add_msg_attr_timeouts(struct snl_writer *nw, uint32_t type, const uint32_t *timeouts) 1201 { 1202 int off; 1203 1204 off = snl_add_msg_attr_nested(nw, type); 1205 1206 for (int i = 0; i < PFTM_MAX; i++) 1207 snl_add_msg_attr_u32(nw, PF_TT_TIMEOUT, timeouts[i]); 1208 1209 snl_end_attr_nested(nw, off); 1210 } 1211 1212 static void 1213 snl_add_msg_attr_uid(struct snl_writer *nw, uint32_t type, const struct pf_rule_uid *uid) 1214 { 1215 int off; 1216 1217 off = snl_add_msg_attr_nested(nw, type); 1218 1219 snl_add_msg_attr_u32(nw, PF_RUT_UID_LOW, uid->uid[0]); 1220 snl_add_msg_attr_u32(nw, PF_RUT_UID_HIGH, uid->uid[1]); 1221 snl_add_msg_attr_u8(nw, PF_RUT_OP, uid->op); 1222 1223 snl_end_attr_nested(nw, off); 1224 } 1225 1226 static void 1227 snl_add_msg_attr_threshold(struct snl_writer *nw, uint32_t type, const struct pfctl_threshold *th) 1228 { 1229 int off; 1230 1231 off = snl_add_msg_attr_nested(nw, type); 1232 1233 snl_add_msg_attr_u32(nw, PF_TH_LIMIT, th->limit); 1234 snl_add_msg_attr_u32(nw, PF_TH_SECONDS, th->seconds); 1235 1236 snl_end_attr_nested(nw, off); 1237 } 1238 1239 static void 1240 snl_add_msg_attr_pf_rule(struct snl_writer *nw, uint32_t type, const struct pfctl_rule *r) 1241 { 1242 int off; 1243 1244 off = snl_add_msg_attr_nested(nw, type); 1245 1246 snl_add_msg_attr_rule_addr(nw, PF_RT_SRC, &r->src); 1247 snl_add_msg_attr_rule_addr(nw, PF_RT_DST, &r->dst); 1248 snl_add_msg_attr_rule_labels(nw, PF_RT_LABELS, r->label); 1249 snl_add_msg_attr_u32(nw, PF_RT_RIDENTIFIER, r->ridentifier); 1250 snl_add_msg_attr_string(nw, PF_RT_IFNAME, r->ifname); 1251 snl_add_msg_attr_string(nw, PF_RT_QNAME, r->qname); 1252 snl_add_msg_attr_string(nw, PF_RT_PQNAME, r->pqname); 1253 snl_add_msg_attr_string(nw, PF_RT_TAGNAME, r->tagname); 1254 snl_add_msg_attr_string(nw, PF_RT_MATCH_TAGNAME, r->match_tagname); 1255 snl_add_msg_attr_string(nw, PF_RT_OVERLOAD_TBLNAME, r->overload_tblname); 1256 snl_add_msg_attr_rpool(nw, PF_RT_RPOOL_RDR, &r->rdr); 1257 snl_add_msg_attr_rpool(nw, PF_RT_RPOOL_NAT, &r->nat); 1258 snl_add_msg_attr_rpool(nw, PF_RT_RPOOL_RT, &r->route); 1259 snl_add_msg_attr_threshold(nw, PF_RT_PKTRATE, &r->pktrate); 1260 snl_add_msg_attr_u32(nw, PF_RT_OS_FINGERPRINT, r->os_fingerprint); 1261 snl_add_msg_attr_u32(nw, PF_RT_RTABLEID, r->rtableid); 1262 snl_add_msg_attr_timeouts(nw, PF_RT_TIMEOUT, r->timeout); 1263 snl_add_msg_attr_u32(nw, PF_RT_MAX_STATES, r->max_states); 1264 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_NODES, r->max_src_nodes); 1265 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_STATES, r->max_src_states); 1266 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN, r->max_src_conn); 1267 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, r->max_src_conn_rate.limit); 1268 snl_add_msg_attr_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, r->max_src_conn_rate.seconds); 1269 snl_add_msg_attr_u16(nw, PF_RT_MAX_PKT_SIZE, r->max_pkt_size); 1270 1271 snl_add_msg_attr_u16(nw, PF_RT_DNPIPE, r->dnpipe); 1272 snl_add_msg_attr_u16(nw, PF_RT_DNRPIPE, r->dnrpipe); 1273 snl_add_msg_attr_u32(nw, PF_RT_DNFLAGS, r->free_flags); 1274 1275 snl_add_msg_attr_u32(nw, PF_RT_NR, r->nr); 1276 snl_add_msg_attr_u32(nw, PF_RT_PROB, r->prob); 1277 snl_add_msg_attr_u32(nw, PF_RT_CUID, r->cuid); 1278 snl_add_msg_attr_u32(nw, PF_RT_CPID, r->cpid); 1279 1280 snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP, r->return_icmp); 1281 snl_add_msg_attr_u16(nw, PF_RT_RETURN_ICMP6, r->return_icmp6); 1282 snl_add_msg_attr_u16(nw, PF_RT_MAX_MSS, r->max_mss); 1283 snl_add_msg_attr_u16(nw, PF_RT_SCRUB_FLAGS, r->scrub_flags); 1284 1285 snl_add_msg_attr_uid(nw, PF_RT_UID, &r->uid); 1286 snl_add_msg_attr_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&r->gid); 1287 snl_add_msg_attr_string(nw, PF_RT_RCV_IFNAME, r->rcv_ifname); 1288 snl_add_msg_attr_bool(nw, PF_RT_RCV_IFNOT, r->rcvifnot); 1289 1290 snl_add_msg_attr_u32(nw, PF_RT_RULE_FLAG, r->rule_flag); 1291 snl_add_msg_attr_u8(nw, PF_RT_ACTION, r->action); 1292 snl_add_msg_attr_u8(nw, PF_RT_DIRECTION, r->direction); 1293 snl_add_msg_attr_u8(nw, PF_RT_LOG, r->log); 1294 snl_add_msg_attr_u8(nw, PF_RT_LOGIF, r->logif); 1295 snl_add_msg_attr_u8(nw, PF_RT_QUICK, r->quick); 1296 snl_add_msg_attr_u8(nw, PF_RT_IF_NOT, r->ifnot); 1297 snl_add_msg_attr_u8(nw, PF_RT_MATCH_TAG_NOT, r->match_tag_not); 1298 snl_add_msg_attr_u8(nw, PF_RT_NATPASS, r->natpass); 1299 snl_add_msg_attr_u8(nw, PF_RT_KEEP_STATE, r->keep_state); 1300 snl_add_msg_attr_u8(nw, PF_RT_AF, r->af); 1301 snl_add_msg_attr_u8(nw, PF_RT_PROTO, r->proto); 1302 snl_add_msg_attr_u16(nw, PF_RT_TYPE_2, r->type); 1303 snl_add_msg_attr_u16(nw, PF_RT_CODE_2, r->code); 1304 snl_add_msg_attr_u8(nw, PF_RT_FLAGS, r->flags); 1305 snl_add_msg_attr_u8(nw, PF_RT_FLAGSET, r->flagset); 1306 snl_add_msg_attr_u8(nw, PF_RT_MIN_TTL, r->min_ttl); 1307 snl_add_msg_attr_u8(nw, PF_RT_ALLOW_OPTS, r->allow_opts); 1308 snl_add_msg_attr_u8(nw, PF_RT_RT, r->rt); 1309 snl_add_msg_attr_u8(nw, PF_RT_RETURN_TTL, r->return_ttl); 1310 snl_add_msg_attr_u8(nw, PF_RT_TOS, r->tos); 1311 snl_add_msg_attr_u8(nw, PF_RT_SET_TOS, r->set_tos); 1312 1313 snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_RELATIVE, r->anchor_relative); 1314 snl_add_msg_attr_u8(nw, PF_RT_ANCHOR_WILDCARD, r->anchor_wildcard); 1315 snl_add_msg_attr_u8(nw, PF_RT_FLUSH, r->flush); 1316 snl_add_msg_attr_u8(nw, PF_RT_PRIO, r->prio); 1317 snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO, r->set_prio[0]); 1318 snl_add_msg_attr_u8(nw, PF_RT_SET_PRIO_REPLY, r->set_prio[1]); 1319 snl_add_msg_attr_u8(nw, PF_RT_NAF, r->naf); 1320 1321 snl_add_msg_attr_ip6(nw, PF_RT_DIVERT_ADDRESS, &r->divert.addr.v6); 1322 snl_add_msg_attr_u16(nw, PF_RT_DIVERT_PORT, r->divert.port); 1323 1324 snl_add_msg_attr_u8(nw, PF_RT_STATE_LIMIT, r->statelim.id); 1325 snl_add_msg_attr_u32(nw, PF_RT_STATE_LIMIT_ACTION, r->statelim.limiter_action); 1326 snl_add_msg_attr_u8(nw, PF_RT_SOURCE_LIMIT, r->sourcelim.id); 1327 snl_add_msg_attr_u32(nw, PF_RT_SOURCE_LIMIT_ACTION, r->sourcelim.limiter_action); 1328 1329 snl_end_attr_nested(nw, off); 1330 } 1331 1332 int 1333 pfctl_add_rule(int dev __unused, const struct pfctl_rule *r, const char *anchor, 1334 const char *anchor_call, uint32_t ticket, uint32_t pool_ticket) 1335 { 1336 struct pfctl_handle *h; 1337 int ret; 1338 1339 h = pfctl_open(PF_DEVICE); 1340 if (h == NULL) 1341 return (ENODEV); 1342 1343 ret = pfctl_add_rule_h(h, r, anchor, anchor_call, ticket, pool_ticket); 1344 1345 pfctl_close(h); 1346 1347 return (ret); 1348 } 1349 1350 int 1351 pfctl_add_rule_h(struct pfctl_handle *h, const struct pfctl_rule *r, 1352 const char *anchor, const char *anchor_call, uint32_t ticket, 1353 uint32_t pool_ticket) 1354 { 1355 struct snl_writer nw; 1356 struct snl_errmsg_data e = {}; 1357 struct nlmsghdr *hdr; 1358 uint32_t seq_id; 1359 1360 snl_init_writer(&h->ss, &nw); 1361 hdr = snl_create_genl_msg_request(&nw, h->family_id, 1362 PFNL_CMD_ADDRULE); 1363 hdr->nlmsg_flags |= NLM_F_DUMP; 1364 snl_add_msg_attr_u32(&nw, PF_ART_TICKET, ticket); 1365 snl_add_msg_attr_u32(&nw, PF_ART_POOL_TICKET, pool_ticket); 1366 snl_add_msg_attr_string(&nw, PF_ART_ANCHOR, anchor); 1367 snl_add_msg_attr_string(&nw, PF_ART_ANCHOR_CALL, anchor_call); 1368 1369 snl_add_msg_attr_pf_rule(&nw, PF_ART_RULE, r); 1370 1371 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 1372 e.error = ENXIO; 1373 goto out; 1374 } 1375 1376 seq_id = hdr->nlmsg_seq; 1377 1378 if (! snl_send_message(&h->ss, hdr)) { 1379 e.error = ENXIO; 1380 goto out; 1381 } 1382 1383 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 1384 } 1385 1386 out: 1387 snl_clear_lb(&h->ss); 1388 return (e.error); 1389 } 1390 1391 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1392 #define _OUT(_field) offsetof(struct pfctl_rules_info, _field) 1393 static struct snl_attr_parser ap_getrules[] = { 1394 { .type = PF_GR_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 }, 1395 { .type = PF_GR_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 }, 1396 }; 1397 #undef _IN 1398 #undef _OUT 1399 SNL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, snl_f_p_empty, ap_getrules); 1400 1401 int 1402 pfctl_get_rules_info_h(struct pfctl_handle *h, struct pfctl_rules_info *rules, uint32_t ruleset, 1403 const char *path) 1404 { 1405 struct snl_errmsg_data e = {}; 1406 struct nlmsghdr *hdr; 1407 struct snl_writer nw; 1408 uint32_t seq_id; 1409 1410 snl_init_writer(&h->ss, &nw); 1411 hdr = snl_create_genl_msg_request(&nw, h->family_id, 1412 PFNL_CMD_GETRULES); 1413 hdr->nlmsg_flags |= NLM_F_DUMP; 1414 1415 snl_add_msg_attr_string(&nw, PF_GR_ANCHOR, path); 1416 snl_add_msg_attr_u8(&nw, PF_GR_ACTION, ruleset); 1417 1418 hdr = snl_finalize_msg(&nw); 1419 if (hdr == NULL) { 1420 e.error = ENOMEM; 1421 goto out; 1422 } 1423 1424 seq_id = hdr->nlmsg_seq; 1425 if (! snl_send_message(&h->ss, hdr)) { 1426 e.error = ENXIO; 1427 goto out; 1428 } 1429 1430 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 1431 if (! snl_parse_nlmsg(&h->ss, hdr, &getrules_parser, rules)) 1432 continue; 1433 } 1434 1435 out: 1436 snl_clear_lb(&h->ss); 1437 return (e.error); 1438 } 1439 1440 int 1441 pfctl_get_rules_info(int dev __unused, struct pfctl_rules_info *rules, uint32_t ruleset, 1442 const char *path) 1443 { 1444 struct pfctl_handle *h; 1445 int error; 1446 1447 h = pfctl_open(PF_DEVICE); 1448 if (h == NULL) 1449 return (ENOTSUP); 1450 error = pfctl_get_rules_info_h(h, rules, ruleset, path); 1451 pfctl_close(h); 1452 1453 return (error); 1454 } 1455 1456 int 1457 pfctl_get_rule_h(struct pfctl_handle *h, uint32_t nr, uint32_t ticket, const char *anchor, 1458 uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call) 1459 { 1460 return (pfctl_get_clear_rule_h(h, nr, ticket, anchor, ruleset, rule, 1461 anchor_call, false)); 1462 } 1463 1464 int 1465 pfctl_get_rule(int dev, uint32_t nr, uint32_t ticket, const char *anchor, 1466 uint32_t ruleset, struct pfctl_rule *rule, char *anchor_call) 1467 { 1468 return (pfctl_get_clear_rule(dev, nr, ticket, anchor, ruleset, rule, 1469 anchor_call, false)); 1470 } 1471 1472 #define _OUT(_field) offsetof(struct pf_addr_wrap, _field) 1473 static const struct snl_attr_parser ap_addr_wrap[] = { 1474 { .type = PF_AT_ADDR, .off = _OUT(v.a.addr), .cb = snl_attr_get_in6_addr }, 1475 { .type = PF_AT_MASK, .off = _OUT(v.a.mask), .cb = snl_attr_get_in6_addr }, 1476 { .type = PF_AT_IFNAME, .off = _OUT(v.ifname), .arg = (void *)IFNAMSIZ,.cb = snl_attr_copy_string }, 1477 { .type = PF_AT_TABLENAME, .off = _OUT(v.tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = snl_attr_copy_string }, 1478 { .type = PF_AT_TYPE, .off = _OUT(type), .cb = snl_attr_get_uint8 }, 1479 { .type = PF_AT_IFLAGS, .off = _OUT(iflags), .cb = snl_attr_get_uint8 }, 1480 { .type = PF_AT_TBLCNT, .off = _OUT(p.tblcnt), .cb = snl_attr_get_uint32 }, 1481 { .type = PF_AT_DYNCNT, .off = _OUT(p.dyncnt), .cb = snl_attr_get_uint32 }, 1482 }; 1483 SNL_DECLARE_ATTR_PARSER(addr_wrap_parser, ap_addr_wrap); 1484 #undef _OUT 1485 1486 #define _OUT(_field) offsetof(struct pf_rule_addr, _field) 1487 static struct snl_attr_parser ap_rule_addr[] = { 1488 { .type = PF_RAT_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = snl_attr_get_nested }, 1489 { .type = PF_RAT_SRC_PORT, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 }, 1490 { .type = PF_RAT_DST_PORT, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 }, 1491 { .type = PF_RAT_NEG, .off = _OUT(neg), .cb = snl_attr_get_uint8 }, 1492 { .type = PF_RAT_OP, .off = _OUT(port_op), .cb = snl_attr_get_uint8 }, 1493 }; 1494 #undef _OUT 1495 SNL_DECLARE_ATTR_PARSER(rule_addr_parser, ap_rule_addr); 1496 1497 struct snl_parsed_labels 1498 { 1499 char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 1500 uint32_t i; 1501 }; 1502 1503 static bool 1504 snl_attr_get_pf_rule_labels(struct snl_state *ss, struct nlattr *nla, 1505 const void *arg __unused, void *target) 1506 { 1507 struct snl_parsed_labels *l = (struct snl_parsed_labels *)target; 1508 bool ret; 1509 1510 if (l->i >= PF_RULE_MAX_LABEL_COUNT) 1511 return (false); 1512 1513 ret = snl_attr_copy_string(ss, nla, (void *)PF_RULE_LABEL_SIZE, 1514 l->labels[l->i]); 1515 if (ret) 1516 l->i++; 1517 1518 return (ret); 1519 } 1520 1521 #define _OUT(_field) offsetof(struct nl_parsed_labels, _field) 1522 static const struct snl_attr_parser ap_labels[] = { 1523 { .type = PF_LT_LABEL, .off = 0, .cb = snl_attr_get_pf_rule_labels }, 1524 }; 1525 SNL_DECLARE_ATTR_PARSER(rule_labels_parser, ap_labels); 1526 #undef _OUT 1527 1528 static bool 1529 snl_attr_get_nested_pf_rule_labels(struct snl_state *ss, struct nlattr *nla, 1530 const void *arg __unused, void *target) 1531 { 1532 struct snl_parsed_labels parsed_labels = { }; 1533 bool error; 1534 1535 /* Assumes target points to the beginning of the structure */ 1536 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &rule_labels_parser, &parsed_labels); 1537 if (! error) 1538 return (error); 1539 1540 memcpy(target, parsed_labels.labels, sizeof(parsed_labels.labels)); 1541 1542 return (true); 1543 } 1544 1545 #define _OUT(_field) offsetof(struct pf_mape_portset, _field) 1546 static const struct snl_attr_parser ap_mape_portset[] = { 1547 { .type = PF_MET_OFFSET, .off = _OUT(offset), .cb = snl_attr_get_uint8 }, 1548 { .type = PF_MET_PSID_LEN, .off = _OUT(psidlen), .cb = snl_attr_get_uint8 }, 1549 {. type = PF_MET_PSID, .off = _OUT(psid), .cb = snl_attr_get_uint16 }, 1550 }; 1551 SNL_DECLARE_ATTR_PARSER(mape_portset_parser, ap_mape_portset); 1552 #undef _OUT 1553 1554 #define _OUT(_field) offsetof(struct pfctl_pool, _field) 1555 static const struct snl_attr_parser ap_pool[] = { 1556 { .type = PF_PT_KEY, .off = _OUT(key), .arg = (void *)sizeof(struct pf_poolhashkey), .cb = snl_attr_get_bytes }, 1557 { .type = PF_PT_COUNTER, .off = _OUT(counter), .cb = snl_attr_get_in6_addr }, 1558 { .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = snl_attr_get_uint32 }, 1559 { .type = PF_PT_PROXY_SRC_PORT, .off = _OUT(proxy_port[0]), .cb = snl_attr_get_uint16 }, 1560 { .type = PF_PT_PROXY_DST_PORT, .off = _OUT(proxy_port[1]), .cb = snl_attr_get_uint16 }, 1561 { .type = PF_PT_OPTS, .off = _OUT(opts), .cb = snl_attr_get_uint8 }, 1562 { .type = PF_PT_MAPE, .off = _OUT(mape), .arg = &mape_portset_parser, .cb = snl_attr_get_nested }, 1563 }; 1564 SNL_DECLARE_ATTR_PARSER(pool_parser, ap_pool); 1565 #undef _OUT 1566 1567 struct nl_parsed_timeouts 1568 { 1569 uint32_t timeouts[PFTM_MAX]; 1570 uint32_t i; 1571 }; 1572 1573 static bool 1574 snl_attr_get_pf_timeout(struct snl_state *ss, struct nlattr *nla, 1575 const void *arg __unused, void *target) 1576 { 1577 struct nl_parsed_timeouts *t = (struct nl_parsed_timeouts *)target; 1578 bool ret; 1579 1580 if (t->i >= PFTM_MAX) 1581 return (false); 1582 1583 ret = snl_attr_get_uint32(ss, nla, NULL, &t->timeouts[t->i]); 1584 if (ret) 1585 t->i++; 1586 1587 return (ret); 1588 } 1589 1590 #define _OUT(_field) offsetof(struct nl_parsed_timeout, _field) 1591 static const struct snl_attr_parser ap_timeouts[] = { 1592 { .type = PF_TT_TIMEOUT, .off = 0, .cb = snl_attr_get_pf_timeout }, 1593 }; 1594 SNL_DECLARE_ATTR_PARSER(timeout_parser, ap_timeouts); 1595 #undef _OUT 1596 1597 static bool 1598 snl_attr_get_nested_timeouts(struct snl_state *ss, struct nlattr *nla, 1599 const void *arg __unused, void *target) 1600 { 1601 struct nl_parsed_timeouts parsed_timeouts = { }; 1602 bool error; 1603 1604 /* Assumes target points to the beginning of the structure */ 1605 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &timeout_parser, &parsed_timeouts); 1606 if (! error) 1607 return (error); 1608 1609 memcpy(target, parsed_timeouts.timeouts, sizeof(parsed_timeouts.timeouts)); 1610 1611 return (true); 1612 } 1613 1614 #define _OUT(_field) offsetof(struct pf_rule_uid, _field) 1615 static const struct snl_attr_parser ap_rule_uid[] = { 1616 { .type = PF_RUT_UID_LOW, .off = _OUT(uid[0]), .cb = snl_attr_get_uint32 }, 1617 { .type = PF_RUT_UID_HIGH, .off = _OUT(uid[1]), .cb = snl_attr_get_uint32 }, 1618 { .type = PF_RUT_OP, .off = _OUT(op), .cb = snl_attr_get_uint8 }, 1619 }; 1620 SNL_DECLARE_ATTR_PARSER(rule_uid_parser, ap_rule_uid); 1621 #undef _OUT 1622 1623 #define _OUT(_field) offsetof(struct pfctl_threshold, _field) 1624 static const struct snl_attr_parser ap_pfctl_threshold[] = { 1625 { .type = PF_TH_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 }, 1626 { .type = PF_TH_SECONDS, .off = _OUT(seconds), .cb = snl_attr_get_uint32 }, 1627 { .type = PF_TH_COUNT, .off = _OUT(count), .cb = snl_attr_get_uint32 }, 1628 }; 1629 SNL_DECLARE_ATTR_PARSER(pfctl_threshold_parser, ap_pfctl_threshold); 1630 #undef _OUT 1631 1632 struct pfctl_nl_get_rule { 1633 struct pfctl_rule r; 1634 char anchor_call[MAXPATHLEN]; 1635 }; 1636 #define _OUT(_field) offsetof(struct pfctl_nl_get_rule, _field) 1637 static struct snl_attr_parser ap_getrule[] = { 1638 { .type = PF_RT_SRC, .off = _OUT(r.src), .arg = &rule_addr_parser,.cb = snl_attr_get_nested }, 1639 { .type = PF_RT_DST, .off = _OUT(r.dst), .arg = &rule_addr_parser,.cb = snl_attr_get_nested }, 1640 { .type = PF_RT_RIDENTIFIER, .off = _OUT(r.ridentifier), .cb = snl_attr_get_uint32 }, 1641 { .type = PF_RT_LABELS, .off = _OUT(r.label), .arg = &rule_labels_parser,.cb = snl_attr_get_nested_pf_rule_labels }, 1642 { .type = PF_RT_IFNAME, .off = _OUT(r.ifname), .arg = (void *)IFNAMSIZ, .cb = snl_attr_copy_string }, 1643 { .type = PF_RT_QNAME, .off = _OUT(r.qname), .arg = (void *)PF_QNAME_SIZE, .cb = snl_attr_copy_string }, 1644 { .type = PF_RT_PQNAME, .off = _OUT(r.pqname), .arg = (void *)PF_QNAME_SIZE, .cb = snl_attr_copy_string }, 1645 { .type = PF_RT_TAGNAME, .off = _OUT(r.tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = snl_attr_copy_string }, 1646 { .type = PF_RT_MATCH_TAGNAME, .off = _OUT(r.match_tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = snl_attr_copy_string }, 1647 { .type = PF_RT_OVERLOAD_TBLNAME, .off = _OUT(r.overload_tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = snl_attr_copy_string }, 1648 { .type = PF_RT_RPOOL_RDR, .off = _OUT(r.rdr), .arg = &pool_parser, .cb = snl_attr_get_nested }, 1649 { .type = PF_RT_OS_FINGERPRINT, .off = _OUT(r.os_fingerprint), .cb = snl_attr_get_uint32 }, 1650 { .type = PF_RT_RTABLEID, .off = _OUT(r.rtableid), .cb = snl_attr_get_uint32 }, 1651 { .type = PF_RT_TIMEOUT, .off = _OUT(r.timeout), .arg = &timeout_parser, .cb = snl_attr_get_nested_timeouts }, 1652 { .type = PF_RT_MAX_STATES, .off = _OUT(r.max_states), .cb = snl_attr_get_uint32 }, 1653 { .type = PF_RT_MAX_SRC_NODES, .off = _OUT(r.max_src_nodes), .cb = snl_attr_get_uint32 }, 1654 { .type = PF_RT_MAX_SRC_STATES, .off = _OUT(r.max_src_states), .cb = snl_attr_get_uint32 }, 1655 { .type = PF_RT_MAX_SRC_CONN_RATE_LIMIT, .off = _OUT(r.max_src_conn_rate.limit), .cb = snl_attr_get_uint32 }, 1656 { .type = PF_RT_MAX_SRC_CONN_RATE_SECS, .off = _OUT(r.max_src_conn_rate.seconds), .cb = snl_attr_get_uint32 }, 1657 { .type = PF_RT_DNPIPE, .off = _OUT(r.dnpipe), .cb = snl_attr_get_uint16 }, 1658 { .type = PF_RT_DNRPIPE, .off = _OUT(r.dnrpipe), .cb = snl_attr_get_uint16 }, 1659 { .type = PF_RT_DNFLAGS, .off = _OUT(r.free_flags), .cb = snl_attr_get_uint32 }, 1660 { .type = PF_RT_NR, .off = _OUT(r.nr), .cb = snl_attr_get_uint32 }, 1661 { .type = PF_RT_PROB, .off = _OUT(r.prob), .cb = snl_attr_get_uint32 }, 1662 { .type = PF_RT_CUID, .off = _OUT(r.cuid), .cb = snl_attr_get_uint32 }, 1663 {. type = PF_RT_CPID, .off = _OUT(r.cpid), .cb = snl_attr_get_uint32 }, 1664 { .type = PF_RT_RETURN_ICMP, .off = _OUT(r.return_icmp), .cb = snl_attr_get_uint16 }, 1665 { .type = PF_RT_RETURN_ICMP6, .off = _OUT(r.return_icmp6), .cb = snl_attr_get_uint16 }, 1666 { .type = PF_RT_MAX_MSS, .off = _OUT(r.max_mss), .cb = snl_attr_get_uint16 }, 1667 { .type = PF_RT_SCRUB_FLAGS, .off = _OUT(r.scrub_flags), .cb = snl_attr_get_uint16 }, 1668 { .type = PF_RT_UID, .off = _OUT(r.uid), .arg = &rule_uid_parser, .cb = snl_attr_get_nested }, 1669 { .type = PF_RT_GID, .off = _OUT(r.gid), .arg = &rule_uid_parser, .cb = snl_attr_get_nested }, 1670 { .type = PF_RT_RULE_FLAG, .off = _OUT(r.rule_flag), .cb = snl_attr_get_uint32 }, 1671 { .type = PF_RT_ACTION, .off = _OUT(r.action), .cb = snl_attr_get_uint8 }, 1672 { .type = PF_RT_DIRECTION, .off = _OUT(r.direction), .cb = snl_attr_get_uint8 }, 1673 { .type = PF_RT_LOG, .off = _OUT(r.log), .cb = snl_attr_get_uint8 }, 1674 { .type = PF_RT_LOGIF, .off = _OUT(r.logif), .cb = snl_attr_get_uint8 }, 1675 { .type = PF_RT_QUICK, .off = _OUT(r.quick), .cb = snl_attr_get_uint8 }, 1676 { .type = PF_RT_IF_NOT, .off = _OUT(r.ifnot), .cb = snl_attr_get_uint8 }, 1677 { .type = PF_RT_MATCH_TAG_NOT, .off = _OUT(r.match_tag_not), .cb = snl_attr_get_uint8 }, 1678 { .type = PF_RT_NATPASS, .off = _OUT(r.natpass), .cb = snl_attr_get_uint8 }, 1679 { .type = PF_RT_KEEP_STATE, .off = _OUT(r.keep_state), .cb = snl_attr_get_uint8 }, 1680 { .type = PF_RT_AF, .off = _OUT(r.af), .cb = snl_attr_get_uint8 }, 1681 { .type = PF_RT_PROTO, .off = _OUT(r.proto), .cb = snl_attr_get_uint8 }, 1682 { .type = PF_RT_TYPE, .off = _OUT(r.type), .cb = snl_attr_get_uint8 }, 1683 { .type = PF_RT_CODE, .off = _OUT(r.code), .cb = snl_attr_get_uint8 }, 1684 { .type = PF_RT_FLAGS, .off = _OUT(r.flags), .cb = snl_attr_get_uint8 }, 1685 { .type = PF_RT_FLAGSET, .off = _OUT(r.flagset), .cb = snl_attr_get_uint8 }, 1686 { .type = PF_RT_MIN_TTL, .off = _OUT(r.min_ttl), .cb = snl_attr_get_uint8 }, 1687 { .type = PF_RT_ALLOW_OPTS, .off = _OUT(r.allow_opts), .cb = snl_attr_get_uint8 }, 1688 { .type = PF_RT_RT, .off = _OUT(r.rt), .cb = snl_attr_get_uint8 }, 1689 { .type = PF_RT_RETURN_TTL, .off = _OUT(r.return_ttl), .cb = snl_attr_get_uint8 }, 1690 { .type = PF_RT_TOS, .off = _OUT(r.tos), .cb = snl_attr_get_uint8 }, 1691 { .type = PF_RT_SET_TOS, .off = _OUT(r.set_tos), .cb = snl_attr_get_uint8 }, 1692 { .type = PF_RT_ANCHOR_RELATIVE, .off = _OUT(r.anchor_relative), .cb = snl_attr_get_uint8 }, 1693 { .type = PF_RT_ANCHOR_WILDCARD, .off = _OUT(r.anchor_wildcard), .cb = snl_attr_get_uint8 }, 1694 { .type = PF_RT_FLUSH, .off = _OUT(r.flush), .cb = snl_attr_get_uint8 }, 1695 { .type = PF_RT_PRIO, .off = _OUT(r.prio), .cb = snl_attr_get_uint8 }, 1696 { .type = PF_RT_SET_PRIO, .off = _OUT(r.set_prio[0]), .cb = snl_attr_get_uint8 }, 1697 { .type = PF_RT_SET_PRIO_REPLY, .off = _OUT(r.set_prio[1]), .cb = snl_attr_get_uint8 }, 1698 { .type = PF_RT_DIVERT_ADDRESS, .off = _OUT(r.divert.addr), .cb = snl_attr_get_in6_addr }, 1699 { .type = PF_RT_DIVERT_PORT, .off = _OUT(r.divert.port), .cb = snl_attr_get_uint16 }, 1700 { .type = PF_RT_PACKETS_IN, .off = _OUT(r.packets[0]), .cb = snl_attr_get_uint64 }, 1701 { .type = PF_RT_PACKETS_OUT, .off = _OUT(r.packets[1]), .cb = snl_attr_get_uint64 }, 1702 { .type = PF_RT_BYTES_IN, .off = _OUT(r.bytes[0]), .cb = snl_attr_get_uint64 }, 1703 { .type = PF_RT_BYTES_OUT, .off = _OUT(r.bytes[1]), .cb = snl_attr_get_uint64 }, 1704 { .type = PF_RT_EVALUATIONS, .off = _OUT(r.evaluations), .cb = snl_attr_get_uint64 }, 1705 { .type = PF_RT_TIMESTAMP, .off = _OUT(r.last_active_timestamp), .cb = snl_attr_get_uint64 }, 1706 { .type = PF_RT_STATES_CUR, .off = _OUT(r.states_cur), .cb = snl_attr_get_uint64 }, 1707 { .type = PF_RT_STATES_TOTAL, .off = _OUT(r.states_tot), .cb = snl_attr_get_uint64 }, 1708 { .type = PF_RT_SRC_NODES, .off = _OUT(r.src_nodes), .cb = snl_attr_get_uint64 }, 1709 { .type = PF_RT_ANCHOR_CALL, .off = _OUT(anchor_call), .arg = (void*)MAXPATHLEN, .cb = snl_attr_copy_string }, 1710 { .type = PF_RT_RCV_IFNAME, .off = _OUT(r.rcv_ifname), .arg = (void*)IFNAMSIZ, .cb = snl_attr_copy_string }, 1711 { .type = PF_RT_MAX_SRC_CONN, .off = _OUT(r.max_src_conn), .cb = snl_attr_get_uint32 }, 1712 { .type = PF_RT_RPOOL_NAT, .off = _OUT(r.nat), .arg = &pool_parser, .cb = snl_attr_get_nested }, 1713 { .type = PF_RT_NAF, .off = _OUT(r.naf), .cb = snl_attr_get_uint8 }, 1714 { .type = PF_RT_RPOOL_RT, .off = _OUT(r.route), .arg = &pool_parser, .cb = snl_attr_get_nested }, 1715 { .type = PF_RT_RCV_IFNOT, .off = _OUT(r.rcvifnot),.cb = snl_attr_get_bool }, 1716 { .type = PF_RT_SRC_NODES_LIMIT, .off = _OUT(r.src_nodes_type[PF_SN_LIMIT]), .cb = snl_attr_get_uint64 }, 1717 { .type = PF_RT_SRC_NODES_NAT, .off = _OUT(r.src_nodes_type[PF_SN_NAT]), .cb = snl_attr_get_uint64 }, 1718 { .type = PF_RT_SRC_NODES_ROUTE, .off = _OUT(r.src_nodes_type[PF_SN_ROUTE]), .cb = snl_attr_get_uint64 }, 1719 { .type = PF_RT_PKTRATE, .off = _OUT(r.pktrate), .arg = &pfctl_threshold_parser, .cb = snl_attr_get_nested }, 1720 { .type = PF_RT_MAX_PKT_SIZE, .off =_OUT(r.max_pkt_size), .cb = snl_attr_get_uint16 }, 1721 { .type = PF_RT_TYPE_2, .off = _OUT(r.type), .cb = snl_attr_get_uint16 }, 1722 { .type = PF_RT_CODE_2, .off = _OUT(r.code), .cb = snl_attr_get_uint16 }, 1723 { .type = PF_RT_EXPTIME, .off = _OUT(r.exptime), .cb = snl_attr_get_time_t }, 1724 { .type = PF_RT_STATE_LIMIT, .off = _OUT(r.statelim.id), .cb = snl_attr_get_uint8 }, 1725 { .type = PF_RT_SOURCE_LIMIT, .off = _OUT(r.sourcelim.id), .cb = snl_attr_get_uint8 }, 1726 { .type = PF_RT_STATE_LIMIT_ACTION, .off = _OUT(r.statelim.limiter_action), .cb = snl_attr_get_uint32 }, 1727 { .type = PF_RT_SOURCE_LIMIT_ACTION, .off = _OUT(r.sourcelim.limiter_action), .cb = snl_attr_get_uint32 }, 1728 }; 1729 #undef _OUT 1730 SNL_DECLARE_PARSER(getrule_parser, struct genlmsghdr, snl_f_p_empty, ap_getrule); 1731 1732 int 1733 pfctl_get_clear_rule_h(struct pfctl_handle *h, uint32_t nr, uint32_t ticket, 1734 const char *anchor, uint32_t ruleset, struct pfctl_rule *rule, 1735 char *anchor_call, bool clear) 1736 { 1737 struct pfctl_nl_get_rule attrs = {}; 1738 struct snl_errmsg_data e = {}; 1739 struct nlmsghdr *hdr; 1740 struct snl_writer nw; 1741 uint32_t seq_id; 1742 1743 snl_init_writer(&h->ss, &nw); 1744 hdr = snl_create_genl_msg_request(&nw, h->family_id, 1745 PFNL_CMD_GETRULE); 1746 hdr->nlmsg_flags |= NLM_F_DUMP; 1747 1748 snl_add_msg_attr_string(&nw, PF_GR_ANCHOR, anchor); 1749 snl_add_msg_attr_u8(&nw, PF_GR_ACTION, ruleset); 1750 snl_add_msg_attr_u32(&nw, PF_GR_NR, nr); 1751 snl_add_msg_attr_u32(&nw, PF_GR_TICKET, ticket); 1752 snl_add_msg_attr_u8(&nw, PF_GR_CLEAR, clear); 1753 1754 hdr = snl_finalize_msg(&nw); 1755 if (hdr == NULL) { 1756 e.error = ENOMEM; 1757 goto out; 1758 } 1759 1760 seq_id = hdr->nlmsg_seq; 1761 if (! snl_send_message(&h->ss, hdr)) { 1762 e.error = ENXIO; 1763 goto out; 1764 } 1765 1766 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 1767 if (! snl_parse_nlmsg(&h->ss, hdr, &getrule_parser, &attrs)) 1768 continue; 1769 } 1770 1771 memcpy(rule, &attrs.r, sizeof(attrs.r)); 1772 strlcpy(anchor_call, attrs.anchor_call, MAXPATHLEN); 1773 1774 out: 1775 snl_clear_lb(&h->ss); 1776 return (e.error); 1777 } 1778 1779 int 1780 pfctl_get_clear_rule(int dev, uint32_t nr, uint32_t ticket, 1781 const char *anchor, uint32_t ruleset, struct pfctl_rule *rule, 1782 char *anchor_call, bool clear) 1783 { 1784 nvlist_t *nvl; 1785 int ret; 1786 1787 nvl = nvlist_create(0); 1788 if (nvl == 0) 1789 return (ENOMEM); 1790 1791 nvlist_add_number(nvl, "nr", nr); 1792 nvlist_add_number(nvl, "ticket", ticket); 1793 nvlist_add_string(nvl, "anchor", anchor); 1794 nvlist_add_number(nvl, "ruleset", ruleset); 1795 1796 if (clear) 1797 nvlist_add_bool(nvl, "clear_counter", true); 1798 1799 if ((ret = pfctl_do_ioctl(dev, DIOCGETRULENV, 8192, &nvl)) != 0) 1800 goto out; 1801 1802 pf_nvrule_to_rule(nvlist_get_nvlist(nvl, "rule"), rule); 1803 1804 if (anchor_call) 1805 strlcpy(anchor_call, nvlist_get_string(nvl, "anchor_call"), 1806 MAXPATHLEN); 1807 1808 out: 1809 nvlist_destroy(nvl); 1810 return (ret); 1811 } 1812 1813 int 1814 pfctl_set_keepcounters(int dev, bool keep) 1815 { 1816 struct pfioc_nv nv; 1817 nvlist_t *nvl; 1818 int ret; 1819 1820 nvl = nvlist_create(0); 1821 1822 nvlist_add_bool(nvl, "keep_counters", keep); 1823 1824 nv.data = nvlist_pack(nvl, &nv.len); 1825 nv.size = nv.len; 1826 1827 nvlist_destroy(nvl); 1828 1829 ret = ioctl(dev, DIOCKEEPCOUNTERS, &nv); 1830 1831 free(nv.data); 1832 return (ret); 1833 } 1834 1835 struct pfctl_creator { 1836 uint32_t id; 1837 }; 1838 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1839 #define _OUT(_field) offsetof(struct pfctl_creator, _field) 1840 static struct snl_attr_parser ap_creators[] = { 1841 { .type = PF_ST_CREATORID, .off = _OUT(id), .cb = snl_attr_get_uint32 }, 1842 }; 1843 #undef _IN 1844 #undef _OUT 1845 SNL_DECLARE_PARSER(creator_parser, struct genlmsghdr, snl_f_p_empty, ap_creators); 1846 1847 int 1848 pfctl_get_creatorids(struct pfctl_handle *h, uint32_t *creators, size_t *len) 1849 { 1850 struct snl_errmsg_data e = {}; 1851 struct nlmsghdr *hdr; 1852 struct snl_writer nw; 1853 size_t i = 0; 1854 1855 snl_init_writer(&h->ss, &nw); 1856 hdr = snl_create_genl_msg_request(&nw, h->family_id, 1857 PFNL_CMD_GETCREATORS); 1858 hdr->nlmsg_flags |= NLM_F_DUMP; 1859 hdr = snl_finalize_msg(&nw); 1860 if (hdr == NULL) { 1861 e.error = ENOMEM; 1862 goto out; 1863 } 1864 1865 uint32_t seq_id = hdr->nlmsg_seq; 1866 1867 if (! snl_send_message(&h->ss, hdr)) { 1868 e.error = ENXIO; 1869 goto out; 1870 } 1871 1872 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 1873 struct pfctl_creator c; 1874 bzero(&c, sizeof(c)); 1875 1876 if (!snl_parse_nlmsg(&h->ss, hdr, &creator_parser, &c)) 1877 continue; 1878 1879 creators[i] = c.id; 1880 i++; 1881 if (i > *len) { 1882 e.error = E2BIG; 1883 goto out; 1884 } 1885 } 1886 1887 *len = i; 1888 1889 out: 1890 snl_clear_lb(&h->ss); 1891 return (e.error); 1892 } 1893 1894 static inline bool 1895 snl_attr_get_pfaddr(struct snl_state *ss __unused, struct nlattr *nla, 1896 const void *arg __unused, void *target) 1897 { 1898 memcpy(target, NLA_DATA(nla), NLA_DATA_LEN(nla)); 1899 return (true); 1900 } 1901 1902 static inline bool 1903 snl_attr_store_ifname(struct snl_state *ss __unused, struct nlattr *nla, 1904 const void *arg __unused, void *target) 1905 { 1906 size_t maxlen = NLA_DATA_LEN(nla); 1907 1908 if (strnlen((char *)NLA_DATA(nla), maxlen) < maxlen) { 1909 strlcpy(target, (char *)NLA_DATA(nla), maxlen); 1910 return (true); 1911 } 1912 return (false); 1913 } 1914 1915 #define _OUT(_field) offsetof(struct pfctl_state_peer, _field) 1916 static const struct snl_attr_parser nla_p_speer[] = { 1917 { .type = PF_STP_SEQLO, .off = _OUT(seqlo), .cb = snl_attr_get_uint32 }, 1918 { .type = PF_STP_SEQHI, .off = _OUT(seqhi), .cb = snl_attr_get_uint32 }, 1919 { .type = PF_STP_SEQDIFF, .off = _OUT(seqdiff), .cb = snl_attr_get_uint32 }, 1920 { .type = PF_STP_STATE, .off = _OUT(state), .cb = snl_attr_get_uint8 }, 1921 { .type = PF_STP_WSCALE, .off = _OUT(wscale), .cb = snl_attr_get_uint8 }, 1922 }; 1923 SNL_DECLARE_ATTR_PARSER(speer_parser, nla_p_speer); 1924 #undef _OUT 1925 1926 #define _OUT(_field) offsetof(struct pfctl_state_key, _field) 1927 static const struct snl_attr_parser nla_p_skey[] = { 1928 { .type = PF_STK_ADDR0, .off = _OUT(addr[0]), .cb = snl_attr_get_pfaddr }, 1929 { .type = PF_STK_ADDR1, .off = _OUT(addr[1]), .cb = snl_attr_get_pfaddr }, 1930 { .type = PF_STK_PORT0, .off = _OUT(port[0]), .cb = snl_attr_get_uint16 }, 1931 { .type = PF_STK_PORT1, .off = _OUT(port[1]), .cb = snl_attr_get_uint16 }, 1932 { .type = PF_STK_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 }, 1933 { .type = PF_STK_PROTO, .off = _OUT(proto), .cb = snl_attr_get_uint16 }, 1934 }; 1935 SNL_DECLARE_ATTR_PARSER(skey_parser, nla_p_skey); 1936 #undef _OUT 1937 1938 SNL_DECLARE_ATTR_PARSER(rule_parser, ap_getrule); 1939 1940 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1941 #define _OUT(_field) offsetof(struct pfctl_state, _field) 1942 static struct snl_attr_parser ap_state[] = { 1943 { .type = PF_ST_ID, .off = _OUT(id), .cb = snl_attr_get_uint64 }, 1944 { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = snl_attr_get_uint32 }, 1945 { .type = PF_ST_IFNAME, .off = _OUT(ifname), .cb = snl_attr_store_ifname }, 1946 { .type = PF_ST_ORIG_IFNAME, .off = _OUT(orig_ifname), .cb = snl_attr_store_ifname }, 1947 { .type = PF_ST_KEY_WIRE, .off = _OUT(key[0]), .arg = &skey_parser, .cb = snl_attr_get_nested }, 1948 { .type = PF_ST_KEY_STACK, .off = _OUT(key[1]), .arg = &skey_parser, .cb = snl_attr_get_nested }, 1949 { .type = PF_ST_PEER_SRC, .off = _OUT(src), .arg = &speer_parser, .cb = snl_attr_get_nested }, 1950 { .type = PF_ST_PEER_DST, .off = _OUT(dst), .arg = &speer_parser, .cb = snl_attr_get_nested }, 1951 { .type = PF_ST_RT_ADDR, .off = _OUT(rt_addr), .cb = snl_attr_get_pfaddr }, 1952 { .type = PF_ST_RULE, .off = _OUT(rule), .cb = snl_attr_get_uint32 }, 1953 { .type = PF_ST_ANCHOR, .off = _OUT(anchor), .cb = snl_attr_get_uint32 }, 1954 { .type = PF_ST_NAT_RULE, .off = _OUT(nat_rule), .cb = snl_attr_get_uint32 }, 1955 { .type = PF_ST_CREATION, .off = _OUT(creation), .cb = snl_attr_get_uint32 }, 1956 { .type = PF_ST_EXPIRE, .off = _OUT(expire), .cb = snl_attr_get_uint32 }, 1957 { .type = PF_ST_PACKETS0, .off = _OUT(packets[0]), .cb = snl_attr_get_uint64 }, 1958 { .type = PF_ST_PACKETS1, .off = _OUT(packets[1]), .cb = snl_attr_get_uint64 }, 1959 { .type = PF_ST_BYTES0, .off = _OUT(bytes[0]), .cb = snl_attr_get_uint64 }, 1960 { .type = PF_ST_BYTES1, .off = _OUT(bytes[1]), .cb = snl_attr_get_uint64 }, 1961 { .type = PF_ST_DIRECTION, .off = _OUT(direction), .cb = snl_attr_get_uint8 }, 1962 { .type = PF_ST_LOG, .off = _OUT(log), .cb = snl_attr_get_uint8 }, 1963 { .type = PF_ST_STATE_FLAGS, .off = _OUT(state_flags), .cb = snl_attr_get_uint16 }, 1964 { .type = PF_ST_SYNC_FLAGS, .off = _OUT(sync_flags), .cb = snl_attr_get_uint8 }, 1965 { .type = PF_ST_RTABLEID, .off = _OUT(rtableid), .cb = snl_attr_get_int32 }, 1966 { .type = PF_ST_MIN_TTL, .off = _OUT(min_ttl), .cb = snl_attr_get_uint8 }, 1967 { .type = PF_ST_MAX_MSS, .off = _OUT(max_mss), .cb = snl_attr_get_uint16 }, 1968 { .type = PF_ST_DNPIPE, .off = _OUT(dnpipe), .cb = snl_attr_get_uint16 }, 1969 { .type = PF_ST_DNRPIPE, .off = _OUT(dnrpipe), .cb = snl_attr_get_uint16 }, 1970 { .type = PF_ST_RT, .off = _OUT(rt), .cb = snl_attr_get_uint8 }, 1971 { .type = PF_ST_RT_IFNAME, .off = _OUT(rt_ifname), .cb = snl_attr_store_ifname }, 1972 { .type = PF_ST_SRC_NODE_FLAGS, .off = _OUT(src_node_flags), .cb = snl_attr_get_uint8 }, 1973 { .type = PF_ST_RT_AF, .off = _OUT(rt_af), .cb = snl_attr_get_uint8 }, 1974 { .type = PF_ST_CREATED_BY_RULE, .off = _OUT(created_by_rule), .arg = &rule_parser, .cb = snl_attr_get_nested }, 1975 }; 1976 #undef _IN 1977 #undef _OUT 1978 SNL_DECLARE_PARSER(state_parser, struct genlmsghdr, snl_f_p_empty, ap_state); 1979 1980 int 1981 pfctl_get_states_h(struct pfctl_handle *h, struct pfctl_state_filter *filter, pfctl_get_state_fn f, void *arg) 1982 { 1983 struct nlmsghdr *hdr; 1984 struct snl_writer nw; 1985 int ret; 1986 1987 snl_init_writer(&h->ss, &nw); 1988 hdr = snl_create_genl_msg_request(&nw, h->family_id, 1989 PFNL_CMD_GETSTATES); 1990 hdr->nlmsg_flags |= NLM_F_DUMP; 1991 snl_add_msg_attr_string(&nw, PF_ST_IFNAME, filter->ifname); 1992 snl_add_msg_attr_u16(&nw, PF_ST_PROTO, filter->proto); 1993 snl_add_msg_attr_u8(&nw, PF_ST_AF, filter->af); 1994 snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_ADDR, &filter->addr.v6); 1995 snl_add_msg_attr_ip6(&nw, PF_ST_FILTER_MASK, &filter->mask.v6); 1996 snl_add_msg_attr_bool(&nw, PF_ST_INCLUDE_RULE, filter->include_rule); 1997 1998 hdr = snl_finalize_msg(&nw); 1999 if (hdr == NULL) { 2000 ret = ENOMEM; 2001 goto out; 2002 } 2003 2004 uint32_t seq_id = hdr->nlmsg_seq; 2005 2006 if (! snl_send_message(&h->ss, hdr)) { 2007 ret = ENXIO; 2008 goto out; 2009 } 2010 2011 struct snl_errmsg_data e = {}; 2012 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2013 struct pfctl_state s; 2014 bzero(&s, sizeof(s)); 2015 if (!snl_parse_nlmsg(&h->ss, hdr, &state_parser, &s)) 2016 continue; 2017 2018 ret = f(&s, arg); 2019 if (ret != 0) { 2020 goto out; 2021 } 2022 } 2023 2024 ret = e.error; 2025 out: 2026 snl_clear_lb(&h->ss); 2027 return (ret); 2028 } 2029 2030 int 2031 pfctl_get_states_iter(pfctl_get_state_fn f, void *arg) 2032 { 2033 struct pfctl_state_filter filter = {}; 2034 return (pfctl_get_filtered_states_iter(&filter, f, arg)); 2035 } 2036 2037 int 2038 pfctl_get_filtered_states_iter(struct pfctl_state_filter *filter, pfctl_get_state_fn f, void *arg) 2039 { 2040 struct pfctl_handle h = {}; 2041 int error; 2042 2043 snl_init(&h.ss, NETLINK_GENERIC); 2044 error = pfctl_get_states_h(&h, filter, f, arg); 2045 snl_free(&h.ss); 2046 2047 return (error); 2048 } 2049 2050 static int 2051 pfctl_append_states(struct pfctl_state *s, void *arg) 2052 { 2053 struct pfctl_state *new; 2054 struct pfctl_states *states = (struct pfctl_states *)arg; 2055 2056 new = malloc(sizeof(*s)); 2057 if (new == NULL) 2058 return (ENOMEM); 2059 2060 memcpy(new, s, sizeof(*s)); 2061 2062 TAILQ_INSERT_TAIL(&states->states, new, entry); 2063 2064 return (0); 2065 } 2066 2067 int 2068 pfctl_get_states(int dev __unused, struct pfctl_states *states) 2069 { 2070 int ret; 2071 2072 bzero(states, sizeof(*states)); 2073 TAILQ_INIT(&states->states); 2074 2075 ret = pfctl_get_states_iter(pfctl_append_states, states); 2076 if (ret != 0) { 2077 pfctl_free_states(states); 2078 return (ret); 2079 } 2080 2081 return (0); 2082 } 2083 2084 void 2085 pfctl_free_states(struct pfctl_states *states) 2086 { 2087 struct pfctl_state *s, *tmp; 2088 2089 TAILQ_FOREACH_SAFE(s, &states->states, entry, tmp) { 2090 free(s); 2091 } 2092 2093 bzero(states, sizeof(*states)); 2094 } 2095 2096 struct pfctl_nl_clear_states { 2097 uint32_t killed; 2098 }; 2099 #define _OUT(_field) offsetof(struct pfctl_nl_clear_states, _field) 2100 static struct snl_attr_parser ap_clear_states[] = { 2101 { .type = PF_CS_KILLED, .off = _OUT(killed), .cb = snl_attr_get_uint32 }, 2102 }; 2103 #undef _OUT 2104 SNL_DECLARE_PARSER(clear_states_parser, struct genlmsghdr, snl_f_p_empty, ap_clear_states); 2105 2106 static int 2107 _pfctl_clear_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill, 2108 unsigned int *killed, int cmd) 2109 { 2110 struct snl_writer nw; 2111 struct snl_errmsg_data e = {}; 2112 struct pfctl_nl_clear_states attrs = {}; 2113 struct nlmsghdr *hdr; 2114 uint32_t seq_id; 2115 2116 snl_init_writer(&h->ss, &nw); 2117 hdr = snl_create_genl_msg_request(&nw, h->family_id, cmd); 2118 hdr->nlmsg_flags |= NLM_F_DUMP; 2119 2120 snl_add_msg_attr_u64(&nw, PF_CS_CMP_ID, kill->cmp.id); 2121 snl_add_msg_attr_u32(&nw, PF_CS_CMP_CREATORID, htonl(kill->cmp.creatorid)); 2122 snl_add_msg_attr_u8(&nw, PF_CS_CMP_DIR, kill->cmp.direction); 2123 snl_add_msg_attr_u8(&nw, PF_CS_AF, kill->af); 2124 snl_add_msg_attr_u8(&nw, PF_CS_PROTO, kill->proto); 2125 snl_add_msg_attr_rule_addr(&nw, PF_CS_SRC, &kill->src); 2126 snl_add_msg_attr_rule_addr(&nw, PF_CS_DST, &kill->dst); 2127 snl_add_msg_attr_rule_addr(&nw, PF_CS_RT_ADDR, &kill->rt_addr); 2128 snl_add_msg_attr_string(&nw, PF_CS_IFNAME, kill->ifname); 2129 snl_add_msg_attr_string(&nw, PF_CS_LABEL, kill->label); 2130 snl_add_msg_attr_bool(&nw, PF_CS_KILL_MATCH, kill->kill_match); 2131 snl_add_msg_attr_bool(&nw, PF_CS_NAT, kill->nat); 2132 2133 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 2134 e.error = ENXIO; 2135 goto out; 2136 } 2137 2138 seq_id = hdr->nlmsg_seq; 2139 2140 if (! snl_send_message(&h->ss, hdr)) { 2141 e.error = ENXIO; 2142 goto out; 2143 } 2144 2145 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2146 if (! snl_parse_nlmsg(&h->ss, hdr, &clear_states_parser, &attrs)) 2147 continue; 2148 } 2149 2150 if (killed) 2151 *killed = attrs.killed; 2152 2153 out: 2154 snl_clear_lb(&h->ss); 2155 return (e.error); 2156 } 2157 2158 int 2159 pfctl_clear_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill, 2160 unsigned int *killed) 2161 { 2162 return(_pfctl_clear_states_h(h, kill, killed, PFNL_CMD_CLRSTATES)); 2163 } 2164 2165 int 2166 pfctl_kill_states_h(struct pfctl_handle *h, const struct pfctl_kill *kill, 2167 unsigned int *killed) 2168 { 2169 return(_pfctl_clear_states_h(h, kill, killed, PFNL_CMD_KILLSTATES)); 2170 } 2171 2172 static int 2173 _pfctl_clear_states(int dev __unused, const struct pfctl_kill *kill, 2174 unsigned int *killed, uint64_t cmd) 2175 { 2176 struct pfctl_handle *h; 2177 int ret; 2178 2179 h = pfctl_open(PF_DEVICE); 2180 if (h == NULL) 2181 return (ENODEV); 2182 2183 ret = _pfctl_clear_states_h(h, kill, killed, cmd); 2184 pfctl_close(h); 2185 2186 return (ret); 2187 } 2188 2189 int 2190 pfctl_clear_states(int dev __unused, const struct pfctl_kill *kill, 2191 unsigned int *killed) 2192 { 2193 return (_pfctl_clear_states(dev, kill, killed, PFNL_CMD_CLRSTATES)); 2194 } 2195 2196 int 2197 pfctl_kill_states(int dev __unused, const struct pfctl_kill *kill, unsigned int *killed) 2198 { 2199 return (_pfctl_clear_states(dev, kill, killed, PFNL_CMD_KILLSTATES)); 2200 } 2201 2202 int 2203 pfctl_clear_rules(int dev, const char *anchorname) 2204 { 2205 struct pfioc_trans trans; 2206 struct pfioc_trans_e transe[2]; 2207 int ret; 2208 2209 bzero(&trans, sizeof(trans)); 2210 bzero(&transe, sizeof(transe)); 2211 2212 transe[0].rs_num = PF_RULESET_SCRUB; 2213 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor)) 2214 >= sizeof(transe[0].anchor)) 2215 return (E2BIG); 2216 2217 transe[1].rs_num = PF_RULESET_FILTER; 2218 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor)) 2219 >= sizeof(transe[1].anchor)) 2220 return (E2BIG); 2221 2222 trans.size = 2; 2223 trans.esize = sizeof(transe[0]); 2224 trans.array = transe; 2225 2226 ret = ioctl(dev, DIOCXBEGIN, &trans); 2227 if (ret != 0) 2228 return (errno); 2229 ret = ioctl(dev, DIOCXCOMMIT, &trans); 2230 if (ret != 0) 2231 return (errno); 2232 2233 return (0); 2234 } 2235 2236 int 2237 pfctl_clear_nat(int dev, const char *anchorname) 2238 { 2239 struct pfioc_trans trans; 2240 struct pfioc_trans_e transe[3]; 2241 int ret; 2242 2243 bzero(&trans, sizeof(trans)); 2244 bzero(&transe, sizeof(transe)); 2245 2246 transe[0].rs_num = PF_RULESET_NAT; 2247 if (strlcpy(transe[0].anchor, anchorname, sizeof(transe[0].anchor)) 2248 >= sizeof(transe[0].anchor)) 2249 return (E2BIG); 2250 2251 transe[1].rs_num = PF_RULESET_BINAT; 2252 if (strlcpy(transe[1].anchor, anchorname, sizeof(transe[1].anchor)) 2253 >= sizeof(transe[0].anchor)) 2254 return (E2BIG); 2255 2256 transe[2].rs_num = PF_RULESET_RDR; 2257 if (strlcpy(transe[2].anchor, anchorname, sizeof(transe[2].anchor)) 2258 >= sizeof(transe[2].anchor)) 2259 return (E2BIG); 2260 2261 trans.size = 3; 2262 trans.esize = sizeof(transe[0]); 2263 trans.array = transe; 2264 2265 ret = ioctl(dev, DIOCXBEGIN, &trans); 2266 if (ret != 0) 2267 return (errno); 2268 ret = ioctl(dev, DIOCXCOMMIT, &trans); 2269 if (ret != 0) 2270 return (errno); 2271 2272 return (0); 2273 } 2274 2275 int 2276 pfctl_clear_eth_rules(int dev, const char *anchorname) 2277 { 2278 struct pfioc_trans trans; 2279 struct pfioc_trans_e transe; 2280 int ret; 2281 2282 bzero(&trans, sizeof(trans)); 2283 bzero(&transe, sizeof(transe)); 2284 2285 transe.rs_num = PF_RULESET_ETH; 2286 if (strlcpy(transe.anchor, anchorname, sizeof(transe.anchor)) 2287 >= sizeof(transe.anchor)) 2288 return (E2BIG); 2289 2290 trans.size = 1; 2291 trans.esize = sizeof(transe); 2292 trans.array = &transe; 2293 2294 ret = ioctl(dev, DIOCXBEGIN, &trans); 2295 if (ret != 0) 2296 return (errno); 2297 ret = ioctl(dev, DIOCXCOMMIT, &trans); 2298 if (ret != 0) 2299 return (errno); 2300 2301 return (0); 2302 } 2303 2304 static int 2305 _pfctl_get_limit(int dev, const int index, uint *limit) 2306 { 2307 struct pfioc_limit pl; 2308 2309 bzero(&pl, sizeof(pl)); 2310 pl.index = index; 2311 2312 if (ioctl(dev, DIOCGETLIMIT, &pl) == -1) 2313 return (errno); 2314 2315 *limit = pl.limit; 2316 2317 return (0); 2318 } 2319 2320 int 2321 pfctl_set_syncookies(int dev, const struct pfctl_syncookies *s) 2322 { 2323 struct pfioc_nv nv; 2324 nvlist_t *nvl; 2325 int ret; 2326 uint state_limit; 2327 uint64_t lim, hi, lo; 2328 2329 ret = _pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit); 2330 if (ret != 0) 2331 return (ret); 2332 2333 if (state_limit == 0) 2334 state_limit = INT_MAX; 2335 2336 lim = state_limit; 2337 hi = lim * s->highwater / 100; 2338 lo = lim * s->lowwater / 100; 2339 2340 if (lo == hi) 2341 hi++; 2342 2343 nvl = nvlist_create(0); 2344 2345 nvlist_add_bool(nvl, "enabled", s->mode != PFCTL_SYNCOOKIES_NEVER); 2346 nvlist_add_bool(nvl, "adaptive", s->mode == PFCTL_SYNCOOKIES_ADAPTIVE); 2347 nvlist_add_number(nvl, "highwater", hi); 2348 nvlist_add_number(nvl, "lowwater", lo); 2349 2350 nv.data = nvlist_pack(nvl, &nv.len); 2351 nv.size = nv.len; 2352 nvlist_destroy(nvl); 2353 nvl = NULL; 2354 2355 ret = ioctl(dev, DIOCSETSYNCOOKIES, &nv); 2356 2357 free(nv.data); 2358 if (ret != 0) 2359 return (errno); 2360 2361 return (0); 2362 } 2363 2364 int 2365 pfctl_get_syncookies(int dev, struct pfctl_syncookies *s) 2366 { 2367 nvlist_t *nvl; 2368 int ret; 2369 uint state_limit; 2370 bool enabled, adaptive; 2371 2372 ret = _pfctl_get_limit(dev, PF_LIMIT_STATES, &state_limit); 2373 if (ret != 0) 2374 return (ret); 2375 2376 if (state_limit == 0) 2377 state_limit = INT_MAX; 2378 2379 bzero(s, sizeof(*s)); 2380 2381 nvl = nvlist_create(0); 2382 2383 if ((ret = pfctl_do_ioctl(dev, DIOCGETSYNCOOKIES, 256, &nvl)) != 0) { 2384 ret = errno; 2385 goto out; 2386 } 2387 2388 enabled = nvlist_get_bool(nvl, "enabled"); 2389 adaptive = nvlist_get_bool(nvl, "adaptive"); 2390 2391 if (enabled) { 2392 if (adaptive) 2393 s->mode = PFCTL_SYNCOOKIES_ADAPTIVE; 2394 else 2395 s->mode = PFCTL_SYNCOOKIES_ALWAYS; 2396 } else { 2397 s->mode = PFCTL_SYNCOOKIES_NEVER; 2398 } 2399 2400 s->highwater = nvlist_get_number(nvl, "highwater") * 100 / state_limit; 2401 s->lowwater = nvlist_get_number(nvl, "lowwater") * 100 / state_limit; 2402 s->halfopen_states = nvlist_get_number(nvl, "halfopen_states"); 2403 2404 out: 2405 nvlist_destroy(nvl); 2406 return (ret); 2407 } 2408 2409 int 2410 pfctl_table_add_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 2411 *addr, int size, int *nadd, int flags) 2412 { 2413 struct pfioc_table io; 2414 2415 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 2416 return (EINVAL); 2417 } 2418 bzero(&io, sizeof io); 2419 io.pfrio_flags = flags; 2420 io.pfrio_table = *tbl; 2421 io.pfrio_buffer = addr; 2422 io.pfrio_esize = sizeof(*addr); 2423 io.pfrio_size = size; 2424 2425 if (ioctl(dev, DIOCRADDADDRS, &io)) 2426 return (errno); 2427 if (nadd != NULL) 2428 *nadd = io.pfrio_nadd; 2429 return (0); 2430 } 2431 2432 static void 2433 snl_add_msg_attr_table(struct snl_writer *nw, uint32_t type, 2434 const struct pfr_table *tbl) 2435 { 2436 int off; 2437 2438 off = snl_add_msg_attr_nested(nw, type); 2439 2440 snl_add_msg_attr_string(nw, PF_T_ANCHOR, tbl->pfrt_anchor); 2441 snl_add_msg_attr_string(nw, PF_T_NAME, tbl->pfrt_name); 2442 snl_add_msg_attr_u32(nw, PF_T_TABLE_FLAGS, tbl->pfrt_flags); 2443 2444 snl_end_attr_nested(nw, off); 2445 } 2446 2447 static void 2448 snl_add_msg_attr_pfr_addr(struct snl_writer *nw, uint32_t type, 2449 const struct pfr_addr *addr) 2450 { 2451 int off; 2452 2453 off = snl_add_msg_attr_nested(nw, type); 2454 2455 snl_add_msg_attr_u8(nw, PFR_A_AF, addr->pfra_af); 2456 snl_add_msg_attr_u8(nw, PFR_A_NET, addr->pfra_net); 2457 snl_add_msg_attr_bool(nw, PFR_A_NOT, addr->pfra_not); 2458 snl_add_msg_attr_ip6(nw, PFR_A_ADDR, &addr->pfra_ip6addr); 2459 2460 snl_end_attr_nested(nw, off); 2461 } 2462 2463 static struct snl_attr_parser ap_table_add_addr[] = { 2464 { .type = PF_TA_NBR_ADDED, .off = 0, .cb = snl_attr_get_uint32 }, 2465 }; 2466 SNL_DECLARE_PARSER(table_add_addr_parser, struct genlmsghdr, snl_f_p_empty, ap_table_add_addr); 2467 2468 static int 2469 _pfctl_table_add_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, struct pfr_addr 2470 *addrs, int size, int *nadd, int flags) 2471 { 2472 struct snl_writer nw; 2473 struct snl_errmsg_data e = {}; 2474 struct nlmsghdr *hdr; 2475 uint32_t seq_id; 2476 uint32_t added; 2477 2478 snl_init_writer(&h->ss, &nw); 2479 hdr = snl_create_genl_msg_request(&nw, h->family_id, 2480 PFNL_CMD_TABLE_ADD_ADDR); 2481 2482 snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl); 2483 snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags); 2484 for (int i = 0; i < size; i++) 2485 snl_add_msg_attr_pfr_addr(&nw, PF_TA_ADDR, &addrs[i]); 2486 2487 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 2488 e.error = ENXIO; 2489 goto out; 2490 } 2491 seq_id = hdr->nlmsg_seq; 2492 2493 if (! snl_send_message(&h->ss, hdr)) { 2494 e.error = ENXIO; 2495 goto out; 2496 } 2497 2498 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2499 if (! snl_parse_nlmsg(&h->ss, hdr, &table_add_addr_parser, &added)) 2500 continue; 2501 } 2502 2503 if (nadd) 2504 *nadd = added; 2505 2506 out: 2507 snl_clear_lb(&h->ss); 2508 return (e.error); 2509 } 2510 2511 int 2512 pfctl_table_add_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, struct pfr_addr 2513 *addr, int size, int *nadd, int flags) 2514 { 2515 int ret; 2516 int off = 0; 2517 int partial_added; 2518 int chunk_size; 2519 2520 do { 2521 chunk_size = MIN(size - off, 256); 2522 ret = _pfctl_table_add_addrs_h(h, tbl, &addr[off], chunk_size, &partial_added, flags); 2523 if (ret != 0) 2524 break; 2525 if (nadd) 2526 *nadd += partial_added; 2527 off += chunk_size; 2528 } while (off < size); 2529 2530 return (ret); 2531 } 2532 2533 static struct snl_attr_parser ap_table_del_addr[] = { 2534 { .type = PF_TA_NBR_DELETED, .off = 0, .cb = snl_attr_get_uint32 }, 2535 }; 2536 SNL_DECLARE_PARSER(table_del_addr_parser, struct genlmsghdr, snl_f_p_empty, ap_table_del_addr); 2537 static int 2538 _pfctl_table_del_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, struct pfr_addr 2539 *addrs, int size, int *ndel, int flags) 2540 { 2541 struct snl_writer nw; 2542 struct snl_errmsg_data e = {}; 2543 struct nlmsghdr *hdr; 2544 uint32_t seq_id; 2545 uint32_t deleted; 2546 2547 snl_init_writer(&h->ss, &nw); 2548 hdr = snl_create_genl_msg_request(&nw, h->family_id, 2549 PFNL_CMD_TABLE_DEL_ADDR); 2550 2551 snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl); 2552 snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags); 2553 for (int i = 0; i < size; i++) 2554 snl_add_msg_attr_pfr_addr(&nw, PF_TA_ADDR, &addrs[i]); 2555 2556 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 2557 e.error = ENXIO; 2558 goto out; 2559 } 2560 seq_id = hdr->nlmsg_seq; 2561 2562 if (! snl_send_message(&h->ss, hdr)) { 2563 e.error = ENXIO; 2564 goto out; 2565 } 2566 2567 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2568 if (! snl_parse_nlmsg(&h->ss, hdr, &table_del_addr_parser, &deleted)) 2569 continue; 2570 } 2571 2572 if (ndel) 2573 *ndel = deleted; 2574 2575 out: 2576 snl_clear_lb(&h->ss); 2577 return (e.error); 2578 } 2579 2580 int 2581 pfctl_table_del_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 2582 *addr, int size, int *ndel, int flags) 2583 { 2584 struct pfioc_table io; 2585 2586 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 2587 return (EINVAL); 2588 } 2589 bzero(&io, sizeof io); 2590 io.pfrio_flags = flags; 2591 io.pfrio_table = *tbl; 2592 io.pfrio_buffer = addr; 2593 io.pfrio_esize = sizeof(*addr); 2594 io.pfrio_size = size; 2595 2596 if (ioctl(dev, DIOCRDELADDRS, &io)) 2597 return (errno); 2598 if (ndel != NULL) 2599 *ndel = io.pfrio_ndel; 2600 return (0); 2601 } 2602 2603 int 2604 pfctl_table_del_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, struct pfr_addr 2605 *addr, int size, int *ndel, int flags) 2606 { 2607 int ret; 2608 int off = 0; 2609 int partial_deleted; 2610 int chunk_size; 2611 2612 do { 2613 chunk_size = MIN(size - off, 256); 2614 ret = _pfctl_table_del_addrs_h(h, tbl, &addr[off], chunk_size, 2615 &partial_deleted, flags); 2616 if (ret != 0) 2617 break; 2618 if (ndel) 2619 *ndel += partial_deleted; 2620 off += chunk_size; 2621 } while (off < size); 2622 2623 return (ret); 2624 } 2625 2626 struct pfctl_change { 2627 int add; 2628 int del; 2629 int change; 2630 }; 2631 #define _OUT(_field) offsetof(struct pfctl_change, _field) 2632 static struct snl_attr_parser ap_table_set_addr[] = { 2633 { .type = PF_TA_NBR_ADDED, .off = _OUT(add), .cb = snl_attr_get_uint32 }, 2634 { .type = PF_TA_NBR_DELETED, .off = _OUT(del), .cb = snl_attr_get_uint32 }, 2635 { .type = PF_TA_NBR_CHANGED, .off = _OUT(change), .cb = snl_attr_get_uint32 }, 2636 }; 2637 #undef _OUT 2638 SNL_DECLARE_PARSER(table_set_addr_parser, struct genlmsghdr, snl_f_p_empty, ap_table_set_addr); 2639 2640 static int 2641 _pfctl_table_set_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, struct pfr_addr 2642 *addrs, int size, int *nadd, int *ndel, int *nchange, int flags) 2643 { 2644 struct snl_writer nw; 2645 struct snl_errmsg_data e = {}; 2646 struct nlmsghdr *hdr; 2647 struct pfctl_change change = { 0 }; 2648 uint32_t seq_id; 2649 2650 snl_init_writer(&h->ss, &nw); 2651 hdr = snl_create_genl_msg_request(&nw, h->family_id, 2652 PFNL_CMD_TABLE_SET_ADDR); 2653 2654 snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl); 2655 snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags); 2656 for (int i = 0; i < size; i++) 2657 snl_add_msg_attr_pfr_addr(&nw, PF_TA_ADDR, &addrs[i]); 2658 2659 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 2660 e.error = ENXIO; 2661 goto out; 2662 } 2663 seq_id = hdr->nlmsg_seq; 2664 2665 if (! snl_send_message(&h->ss, hdr)) { 2666 e.error = ENXIO; 2667 goto out; 2668 } 2669 2670 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2671 if (! snl_parse_nlmsg(&h->ss, hdr, &table_set_addr_parser, &change)) 2672 continue; 2673 } 2674 2675 if (nadd) 2676 *nadd = change.add; 2677 if (ndel) 2678 *ndel = change.del; 2679 if (nchange) 2680 *nchange = change.change; 2681 2682 out: 2683 snl_clear_lb(&h->ss); 2684 return (e.error); 2685 } 2686 2687 int 2688 pfctl_table_set_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, 2689 struct pfr_addr *addr, int size, int *nadd, int *ndel, 2690 int *nchange, int flags) 2691 { 2692 int ret; 2693 int off = 0; 2694 int partial_add, partial_del, partial_change; 2695 int chunk_size; 2696 2697 do { 2698 flags &= ~(PFR_FLAG_START | PFR_FLAG_DONE); 2699 if (off == 0) 2700 flags |= PFR_FLAG_START; 2701 chunk_size = MIN(size - off, 256); 2702 if ((chunk_size + off) == size) 2703 flags |= PFR_FLAG_DONE; 2704 ret = _pfctl_table_set_addrs_h(h, tbl, &addr[off], chunk_size, 2705 &partial_add, &partial_del, &partial_change, flags); 2706 if (ret != 0) 2707 break; 2708 if (! (flags & PFR_FLAG_DONE)) { 2709 assert(partial_del == 0); 2710 } 2711 if (nadd) 2712 *nadd += partial_add; 2713 if (ndel) 2714 *ndel += partial_del; 2715 if (nchange) 2716 *nchange += partial_change; 2717 off += chunk_size; 2718 } while (off < size); 2719 2720 return (ret); 2721 } 2722 2723 int 2724 pfctl_table_set_addrs(int dev, struct pfr_table *tbl, struct pfr_addr 2725 *addr, int size, int *size2, int *nadd, int *ndel, int *nchange, int flags) 2726 { 2727 struct pfioc_table io; 2728 2729 if (tbl == NULL || size < 0 || (size && addr == NULL)) { 2730 return (EINVAL); 2731 } 2732 bzero(&io, sizeof io); 2733 io.pfrio_flags = flags; 2734 io.pfrio_table = *tbl; 2735 io.pfrio_buffer = addr; 2736 io.pfrio_esize = sizeof(*addr); 2737 io.pfrio_size = size; 2738 io.pfrio_size2 = (size2 != NULL) ? *size2 : 0; 2739 if (ioctl(dev, DIOCRSETADDRS, &io)) 2740 return (errno); 2741 if (nadd != NULL) 2742 *nadd = io.pfrio_nadd; 2743 if (ndel != NULL) 2744 *ndel = io.pfrio_ndel; 2745 if (nchange != NULL) 2746 *nchange = io.pfrio_nchange; 2747 if (size2 != NULL) 2748 *size2 = io.pfrio_size2; 2749 return (0); 2750 } 2751 2752 int pfctl_table_get_addrs(int dev, struct pfr_table *tbl, struct pfr_addr *addr, 2753 int *size, int flags) 2754 { 2755 struct pfioc_table io; 2756 2757 if (tbl == NULL || size == NULL || *size < 0 || 2758 (*size && addr == NULL)) { 2759 return (EINVAL); 2760 } 2761 bzero(&io, sizeof io); 2762 io.pfrio_flags = flags; 2763 io.pfrio_table = *tbl; 2764 io.pfrio_buffer = addr; 2765 io.pfrio_esize = sizeof(*addr); 2766 io.pfrio_size = *size; 2767 if (ioctl(dev, DIOCRGETADDRS, &io)) 2768 return (errno); 2769 *size = io.pfrio_size; 2770 return (0); 2771 } 2772 2773 struct nl_addrs { 2774 size_t max; 2775 struct pfr_addr *addrs; 2776 size_t count; 2777 size_t total_count; 2778 }; 2779 2780 /* pfra_af is a u8, but the kernel sends PFR_A_AF as a u32. Accept both. */ 2781 static bool 2782 snl_attr_get_pfra_af(struct snl_state *ss, struct nlattr *nla, 2783 const void *arg __unused, void *target) 2784 { 2785 uint32_t af; 2786 2787 if (snl_attr_get_uint8(ss, nla, NULL, target)) 2788 return (true); 2789 if (! snl_attr_get_uint32(ss, nla, NULL, &af)) 2790 return (false); 2791 *(uint8_t *)target = af; 2792 2793 return (true); 2794 } 2795 2796 #define _OUT(_field) offsetof(struct pfr_addr, _field) 2797 static const struct snl_attr_parser ap_pfr_addr[] = { 2798 { .type = PFR_A_AF, .off = _OUT(pfra_af), .cb = snl_attr_get_pfra_af }, 2799 { .type = PFR_A_NET, .off = _OUT(pfra_net), .cb = snl_attr_get_uint8 }, 2800 { .type = PFR_A_NOT, .off = _OUT(pfra_not), .cb = snl_attr_get_bool }, 2801 { .type = PFR_A_ADDR, .off = _OUT(pfra_ip6addr), .cb = snl_attr_get_in6_addr }, 2802 }; 2803 #undef _OUT 2804 SNL_DECLARE_ATTR_PARSER(pfr_addr_parser, ap_pfr_addr); 2805 2806 static bool 2807 snl_attr_get_pfr_addrs(struct snl_state *ss, struct nlattr *nla, 2808 const void *arg __unused, void *target) 2809 { 2810 struct nl_addrs *a = (struct nl_addrs *)target; 2811 bool ret; 2812 2813 if (a->count >= a->max) 2814 return (false); 2815 2816 ret = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), 2817 &pfr_addr_parser, &a->addrs[a->count]); 2818 if (ret) 2819 a->count++; 2820 2821 return (ret); 2822 } 2823 2824 #define _OUT(_field) offsetof(struct nl_addrs, _field) 2825 static struct snl_attr_parser ap_table_get_addr[] = { 2826 { .type = PF_TA_ADDR, .off = 0, .cb = snl_attr_get_pfr_addrs }, 2827 { .type = PF_TA_ADDR_COUNT, .off = _OUT(total_count), .cb = snl_attr_get_uint32 }, 2828 }; 2829 #undef _OUT 2830 SNL_DECLARE_PARSER(table_get_addr_parser, struct genlmsghdr, snl_f_p_empty, ap_table_get_addr); 2831 int 2832 pfctl_table_get_addrs_h(struct pfctl_handle *h, struct pfr_table *tbl, 2833 struct pfr_addr *addr, int *size, int flags) 2834 { 2835 struct nl_addrs addrs = { 0 }; 2836 struct snl_writer nw; 2837 struct snl_errmsg_data e = {}; 2838 struct nlmsghdr *hdr; 2839 uint32_t seq_id; 2840 2841 snl_init_writer(&h->ss, &nw); 2842 hdr = snl_create_genl_msg_request(&nw, h->family_id, 2843 PFNL_CMD_TABLE_GET_ADDR); 2844 2845 snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl); 2846 snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags); 2847 2848 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 2849 e.error = ENXIO; 2850 goto out; 2851 } 2852 2853 seq_id = hdr->nlmsg_seq; 2854 if (! snl_send_message(&h->ss, hdr)) { 2855 e.error = ENXIO; 2856 goto out; 2857 } 2858 2859 addrs.addrs = addr; 2860 addrs.max = *size; 2861 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2862 if (! snl_parse_nlmsg(&h->ss, hdr, &table_get_addr_parser, &addrs)) 2863 continue; 2864 } 2865 2866 *size = addrs.total_count; 2867 2868 out: 2869 snl_clear_lb(&h->ss); 2870 return (e.error); 2871 } 2872 2873 int 2874 pfctl_set_statusif(struct pfctl_handle *h, const char *ifname) 2875 { 2876 struct snl_writer nw; 2877 struct snl_errmsg_data e = {}; 2878 struct nlmsghdr *hdr; 2879 uint32_t seq_id; 2880 2881 snl_init_writer(&h->ss, &nw); 2882 hdr = snl_create_genl_msg_request(&nw, h->family_id, 2883 PFNL_CMD_SET_STATUSIF); 2884 2885 snl_add_msg_attr_string(&nw, PF_SS_IFNAME, ifname); 2886 2887 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 2888 e.error = ENXIO; 2889 goto out; 2890 } 2891 2892 seq_id = hdr->nlmsg_seq; 2893 2894 if (! snl_send_message(&h->ss, hdr)) { 2895 e.error = ENXIO; 2896 goto out; 2897 } 2898 2899 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2900 } 2901 2902 out: 2903 snl_clear_lb(&h->ss); 2904 return (e.error); 2905 } 2906 2907 #define _IN(_field) offsetof(struct genlmsghdr, _field) 2908 #define _OUT(_field) offsetof(struct pfctl_natlook, _field) 2909 static struct snl_attr_parser ap_natlook[] = { 2910 { .type = PF_NL_SRC_ADDR, .off = _OUT(saddr), .cb = snl_attr_get_in6_addr }, 2911 { .type = PF_NL_DST_ADDR, .off = _OUT(daddr), .cb = snl_attr_get_in6_addr }, 2912 { .type = PF_NL_SRC_PORT, .off = _OUT(sport), .cb = snl_attr_get_uint16 }, 2913 { .type = PF_NL_DST_PORT, .off = _OUT(dport), .cb = snl_attr_get_uint16 }, 2914 }; 2915 #undef _IN 2916 #undef _OUT 2917 SNL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, snl_f_p_empty, ap_natlook); 2918 2919 int 2920 pfctl_natlook(struct pfctl_handle *h, const struct pfctl_natlook_key *k, 2921 struct pfctl_natlook *r) 2922 { 2923 struct snl_writer nw; 2924 struct snl_errmsg_data e = {}; 2925 struct nlmsghdr *hdr; 2926 uint32_t seq_id; 2927 2928 snl_init_writer(&h->ss, &nw); 2929 hdr = snl_create_genl_msg_request(&nw, h->family_id, 2930 PFNL_CMD_NATLOOK); 2931 hdr->nlmsg_flags |= NLM_F_DUMP; 2932 2933 snl_add_msg_attr_u8(&nw, PF_NL_AF, k->af); 2934 snl_add_msg_attr_u8(&nw, PF_NL_DIRECTION, k->direction); 2935 snl_add_msg_attr_u8(&nw, PF_NL_PROTO, k->proto); 2936 snl_add_msg_attr_ip6(&nw, PF_NL_SRC_ADDR, &k->saddr.v6); 2937 snl_add_msg_attr_ip6(&nw, PF_NL_DST_ADDR, &k->daddr.v6); 2938 snl_add_msg_attr_u16(&nw, PF_NL_SRC_PORT, k->sport); 2939 snl_add_msg_attr_u16(&nw, PF_NL_DST_PORT, k->dport); 2940 2941 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 2942 e.error = ENXIO; 2943 goto out; 2944 } 2945 2946 seq_id = hdr->nlmsg_seq; 2947 2948 if (! snl_send_message(&h->ss, hdr)) { 2949 e.error = ENXIO; 2950 goto out; 2951 } 2952 2953 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2954 if (! snl_parse_nlmsg(&h->ss, hdr, &natlook_parser, r)) 2955 continue; 2956 } 2957 2958 out: 2959 snl_clear_lb(&h->ss); 2960 return (e.error); 2961 } 2962 2963 int 2964 pfctl_set_debug(struct pfctl_handle *h, uint32_t level) 2965 { 2966 struct snl_writer nw; 2967 struct snl_errmsg_data e = {}; 2968 struct nlmsghdr *hdr; 2969 uint32_t seq_id; 2970 2971 snl_init_writer(&h->ss, &nw); 2972 hdr = snl_create_genl_msg_request(&nw, h->family_id, 2973 PFNL_CMD_SET_DEBUG); 2974 2975 snl_add_msg_attr_u32(&nw, PF_SD_LEVEL, level); 2976 2977 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 2978 e.error = ENXIO; 2979 goto out; 2980 } 2981 2982 seq_id = hdr->nlmsg_seq; 2983 2984 if (! snl_send_message(&h->ss, hdr)) { 2985 e.error = ENXIO; 2986 goto out; 2987 } 2988 2989 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 2990 } 2991 2992 out: 2993 snl_clear_lb(&h->ss); 2994 return (e.error); 2995 } 2996 2997 int 2998 pfctl_set_timeout(struct pfctl_handle *h, uint32_t timeout, uint32_t seconds) 2999 { 3000 struct snl_writer nw; 3001 struct snl_errmsg_data e = {}; 3002 struct nlmsghdr *hdr; 3003 uint32_t seq_id; 3004 3005 snl_init_writer(&h->ss, &nw); 3006 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3007 PFNL_CMD_SET_TIMEOUT); 3008 3009 snl_add_msg_attr_u32(&nw, PF_TO_TIMEOUT, timeout); 3010 snl_add_msg_attr_u32(&nw, PF_TO_SECONDS, seconds); 3011 3012 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3013 e.error = ENXIO; 3014 goto out; 3015 } 3016 3017 seq_id = hdr->nlmsg_seq; 3018 3019 if (! snl_send_message(&h->ss, hdr)) { 3020 e.error = ENXIO; 3021 goto out; 3022 } 3023 3024 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3025 } 3026 3027 out: 3028 snl_clear_lb(&h->ss); 3029 return (e.error); 3030 } 3031 3032 struct pfctl_nl_timeout { 3033 uint32_t seconds; 3034 }; 3035 #define _OUT(_field) offsetof(struct pfctl_nl_timeout, _field) 3036 static struct snl_attr_parser ap_get_timeout[] = { 3037 { .type = PF_TO_SECONDS, .off = _OUT(seconds), .cb = snl_attr_get_uint32 }, 3038 }; 3039 #undef _OUT 3040 SNL_DECLARE_PARSER(get_timeout_parser, struct genlmsghdr, snl_f_p_empty, ap_get_timeout); 3041 3042 int 3043 pfctl_get_timeout(struct pfctl_handle *h, uint32_t timeout, uint32_t *seconds) 3044 { 3045 struct snl_writer nw; 3046 struct pfctl_nl_timeout to = {}; 3047 struct snl_errmsg_data e = {}; 3048 struct nlmsghdr *hdr; 3049 uint32_t seq_id; 3050 3051 snl_init_writer(&h->ss, &nw); 3052 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3053 PFNL_CMD_GET_TIMEOUT); 3054 hdr->nlmsg_flags |= NLM_F_DUMP; 3055 3056 snl_add_msg_attr_u32(&nw, PF_TO_TIMEOUT, timeout); 3057 3058 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3059 e.error = ENXIO; 3060 goto out; 3061 } 3062 3063 seq_id = hdr->nlmsg_seq; 3064 3065 if (! snl_send_message(&h->ss, hdr)) { 3066 e.error = ENXIO; 3067 goto out; 3068 } 3069 3070 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3071 if (! snl_parse_nlmsg(&h->ss, hdr, &get_timeout_parser, &to)) 3072 continue; 3073 } 3074 3075 if (seconds != NULL) 3076 *seconds = to.seconds; 3077 3078 out: 3079 snl_clear_lb(&h->ss); 3080 return (e.error); 3081 } 3082 3083 int 3084 pfctl_set_limit(struct pfctl_handle *h, const int index, const uint limit) 3085 { 3086 struct snl_writer nw; 3087 struct snl_errmsg_data e = {}; 3088 struct nlmsghdr *hdr; 3089 uint32_t seq_id; 3090 3091 snl_init_writer(&h->ss, &nw); 3092 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3093 PFNL_CMD_SET_LIMIT); 3094 3095 snl_add_msg_attr_u32(&nw, PF_LI_INDEX, index); 3096 snl_add_msg_attr_u32(&nw, PF_LI_LIMIT, limit); 3097 3098 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3099 e.error = ENXIO; 3100 goto out; 3101 } 3102 3103 seq_id = hdr->nlmsg_seq; 3104 3105 if (! snl_send_message(&h->ss, hdr)) { 3106 e.error = ENXIO; 3107 goto out; 3108 } 3109 3110 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3111 } 3112 3113 out: 3114 snl_clear_lb(&h->ss); 3115 return (e.error); 3116 } 3117 3118 struct pfctl_nl_limit { 3119 unsigned int limit; 3120 }; 3121 #define _OUT(_field) offsetof(struct pfctl_nl_limit, _field) 3122 static struct snl_attr_parser ap_get_limit[] = { 3123 { .type = PF_LI_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 }, 3124 }; 3125 #undef _OUT 3126 SNL_DECLARE_PARSER(get_limit_parser, struct genlmsghdr, snl_f_p_empty, ap_get_limit); 3127 3128 int 3129 pfctl_get_limit(struct pfctl_handle *h, const int index, uint *limit) 3130 { 3131 struct snl_writer nw; 3132 struct pfctl_nl_limit li = {}; 3133 struct snl_errmsg_data e = {}; 3134 struct nlmsghdr *hdr; 3135 uint32_t seq_id; 3136 3137 snl_init_writer(&h->ss, &nw); 3138 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3139 PFNL_CMD_GET_LIMIT); 3140 hdr->nlmsg_flags |= NLM_F_DUMP; 3141 3142 snl_add_msg_attr_u32(&nw, PF_LI_INDEX, index); 3143 3144 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3145 e.error = ENXIO; 3146 goto out; 3147 } 3148 3149 seq_id = hdr->nlmsg_seq; 3150 3151 if (! snl_send_message(&h->ss, hdr)) { 3152 e.error = ENXIO; 3153 goto out; 3154 } 3155 3156 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3157 if (! snl_parse_nlmsg(&h->ss, hdr, &get_limit_parser, &li)) 3158 continue; 3159 } 3160 3161 if (limit != NULL) 3162 *limit = li.limit; 3163 3164 out: 3165 snl_clear_lb(&h->ss); 3166 return (e.error); 3167 } 3168 3169 struct pfctl_nl_begin_addrs { 3170 uint32_t ticket; 3171 }; 3172 #define _OUT(_field) offsetof(struct pfctl_nl_begin_addrs, _field) 3173 static struct snl_attr_parser ap_begin_addrs[] = { 3174 { .type = PF_BA_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 }, 3175 }; 3176 #undef _OUT 3177 SNL_DECLARE_PARSER(begin_addrs_parser, struct genlmsghdr, snl_f_p_empty, ap_begin_addrs); 3178 3179 int 3180 pfctl_begin_addrs(struct pfctl_handle *h, uint32_t *ticket) 3181 { 3182 struct snl_writer nw; 3183 struct pfctl_nl_begin_addrs attrs = {}; 3184 struct snl_errmsg_data e = {}; 3185 struct nlmsghdr *hdr; 3186 uint32_t seq_id; 3187 3188 snl_init_writer(&h->ss, &nw); 3189 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3190 PFNL_CMD_BEGIN_ADDRS); 3191 hdr->nlmsg_flags |= NLM_F_DUMP; 3192 3193 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3194 e.error = ENXIO; 3195 goto out; 3196 } 3197 3198 seq_id = hdr->nlmsg_seq; 3199 3200 if (! snl_send_message(&h->ss, hdr)) { 3201 e.error = ENXIO; 3202 goto out; 3203 } 3204 3205 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3206 if (! snl_parse_nlmsg(&h->ss, hdr, &begin_addrs_parser, &attrs)) 3207 continue; 3208 } 3209 3210 if (ticket != NULL) 3211 *ticket = attrs.ticket; 3212 3213 out: 3214 snl_clear_lb(&h->ss); 3215 return (e.error); 3216 } 3217 3218 int 3219 pfctl_add_addr(struct pfctl_handle *h, const struct pfioc_pooladdr *pa, int which) 3220 { 3221 struct snl_writer nw; 3222 struct snl_errmsg_data e = {}; 3223 struct nlmsghdr *hdr; 3224 uint32_t seq_id; 3225 3226 snl_init_writer(&h->ss, &nw); 3227 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3228 PFNL_CMD_ADD_ADDR); 3229 3230 snl_add_msg_attr_u32(&nw, PF_AA_ACTION, pa->action); 3231 snl_add_msg_attr_u32(&nw, PF_AA_TICKET, pa->ticket); 3232 snl_add_msg_attr_u32(&nw, PF_AA_NR, pa->nr); 3233 snl_add_msg_attr_u32(&nw, PF_AA_R_NUM, pa->r_num); 3234 snl_add_msg_attr_u8(&nw, PF_AA_R_ACTION, pa->r_action); 3235 snl_add_msg_attr_u8(&nw, PF_AA_R_LAST, pa->r_last); 3236 snl_add_msg_attr_u8(&nw, PF_AA_AF, pa->af); 3237 snl_add_msg_attr_string(&nw, PF_AA_ANCHOR, pa->anchor); 3238 snl_add_msg_attr_pool_addr(&nw, PF_AA_ADDR, &pa->addr); 3239 snl_add_msg_attr_u32(&nw, PF_AA_WHICH, which); 3240 3241 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3242 e.error = ENXIO; 3243 goto out; 3244 } 3245 3246 seq_id = hdr->nlmsg_seq; 3247 3248 if (! snl_send_message(&h->ss, hdr)) { 3249 e.error = ENXIO; 3250 goto out; 3251 } 3252 3253 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3254 } 3255 3256 out: 3257 snl_clear_lb(&h->ss); 3258 return (e.error); 3259 } 3260 3261 static const struct snl_attr_parser ap_get_addrs[] = { 3262 { .type = PF_AA_NR, .off = 0, .cb = snl_attr_get_uint32 }, 3263 }; 3264 SNL_DECLARE_PARSER(get_addrs_parser, struct genlmsghdr, snl_f_p_empty, ap_get_addrs); 3265 3266 int 3267 pfctl_get_addrs(struct pfctl_handle *h, uint32_t ticket, uint32_t r_num, 3268 uint8_t r_action, const char *anchor, uint32_t *nr, int which) 3269 { 3270 struct snl_writer nw; 3271 struct snl_errmsg_data e = {}; 3272 struct nlmsghdr *hdr; 3273 uint32_t seq_id; 3274 3275 snl_init_writer(&h->ss, &nw); 3276 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3277 PFNL_CMD_GET_ADDRS); 3278 3279 snl_add_msg_attr_u32(&nw, PF_AA_TICKET, ticket); 3280 snl_add_msg_attr_u32(&nw, PF_AA_R_NUM, r_num); 3281 snl_add_msg_attr_u8(&nw, PF_AA_R_ACTION, r_action); 3282 snl_add_msg_attr_string(&nw, PF_AA_ANCHOR, anchor); 3283 snl_add_msg_attr_u32(&nw, PF_AA_WHICH, which); 3284 3285 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3286 e.error = ENXIO; 3287 } 3288 3289 seq_id = hdr->nlmsg_seq; 3290 3291 if (! snl_send_message(&h->ss, hdr)) { 3292 e.error = ENXIO; 3293 goto out; 3294 } 3295 3296 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3297 if (! snl_parse_nlmsg(&h->ss, hdr, &get_addrs_parser, nr)) 3298 continue; 3299 } 3300 3301 out: 3302 snl_clear_lb(&h->ss); 3303 return (e.error); 3304 } 3305 3306 #define _OUT(_field) offsetof(struct pf_pooladdr, _field) 3307 static const struct snl_attr_parser ap_pool_addr[] = { 3308 { .type = PF_PA_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = snl_attr_get_nested }, 3309 { .type = PF_PA_IFNAME, .off = _OUT(ifname), .arg_u32 = IFNAMSIZ, .cb = snl_attr_copy_string }, 3310 }; 3311 SNL_DECLARE_ATTR_PARSER(pool_addr_parser, ap_pool_addr); 3312 #undef _OUT 3313 3314 #define _OUT(_field) offsetof(struct pfioc_pooladdr, _field) 3315 static const struct snl_attr_parser ap_get_addr[] = { 3316 { .type = PF_AA_ACTION, .off = _OUT(action), .cb = snl_attr_get_uint32 }, 3317 { .type = PF_AA_TICKET, .off = _OUT(ticket), .cb = snl_attr_get_uint32 }, 3318 { .type = PF_AA_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 }, 3319 { .type = PF_AA_R_NUM, .off = _OUT(r_num), .cb = snl_attr_get_uint32 }, 3320 { .type = PF_AA_R_ACTION, .off = _OUT(r_action), .cb = snl_attr_get_uint8 }, 3321 { .type = PF_AA_R_LAST, .off = _OUT(r_last), .cb = snl_attr_get_uint8 }, 3322 { .type = PF_AA_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 }, 3323 { .type = PF_AA_ANCHOR, .off = _OUT(anchor), .arg_u32 = MAXPATHLEN, .cb = snl_attr_copy_string }, 3324 { .type = PF_AA_ADDR, .off = _OUT(addr), .arg = &pool_addr_parser, .cb = snl_attr_get_nested }, 3325 }; 3326 SNL_DECLARE_PARSER(get_addr_parser, struct genlmsghdr, snl_f_p_empty, ap_get_addr); 3327 #undef _OUT 3328 3329 int 3330 pfctl_get_addr(struct pfctl_handle *h, uint32_t ticket, uint32_t r_num, 3331 uint8_t r_action, const char *anchor, uint32_t nr, struct pfioc_pooladdr *pa, 3332 int which) 3333 { 3334 struct snl_writer nw; 3335 struct snl_errmsg_data e = {}; 3336 struct nlmsghdr *hdr; 3337 uint32_t seq_id; 3338 3339 snl_init_writer(&h->ss, &nw); 3340 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3341 PFNL_CMD_GET_ADDR); 3342 3343 snl_add_msg_attr_u32(&nw, PF_AA_TICKET, ticket); 3344 snl_add_msg_attr_u32(&nw, PF_AA_R_NUM, r_num); 3345 snl_add_msg_attr_u8(&nw, PF_AA_R_ACTION, r_action); 3346 snl_add_msg_attr_string(&nw, PF_AA_ANCHOR, anchor); 3347 snl_add_msg_attr_u32(&nw, PF_AA_NR, nr); 3348 snl_add_msg_attr_u32(&nw, PF_AA_WHICH, which); 3349 3350 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3351 e.error = ENXIO; 3352 } 3353 3354 seq_id = hdr->nlmsg_seq; 3355 3356 if (! snl_send_message(&h->ss, hdr)) { 3357 e.error = ENXIO; 3358 goto out; 3359 } 3360 3361 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3362 if (! snl_parse_nlmsg(&h->ss, hdr, &get_addr_parser, pa)) 3363 continue; 3364 } 3365 3366 out: 3367 snl_clear_lb(&h->ss); 3368 return (e.error); 3369 } 3370 3371 #define _OUT(_field) offsetof(struct pfioc_ruleset, _field) 3372 static const struct snl_attr_parser ap_ruleset[] = { 3373 { .type = PF_RS_NR, .off = _OUT(nr), .cb = snl_attr_get_uint32 }, 3374 { .type = PF_RS_NAME, .off = _OUT(name), .arg = (void *)PF_ANCHOR_NAME_SIZE, .cb = snl_attr_copy_string }, 3375 }; 3376 SNL_DECLARE_PARSER(ruleset_parser, struct genlmsghdr, snl_f_p_empty, ap_ruleset); 3377 #undef _OUT 3378 3379 int 3380 pfctl_get_rulesets(struct pfctl_handle *h, const char *path, uint32_t *nr) 3381 { 3382 struct snl_writer nw; 3383 struct snl_errmsg_data e = {}; 3384 struct nlmsghdr *hdr; 3385 struct pfioc_ruleset rs = {}; 3386 uint32_t seq_id; 3387 3388 snl_init_writer(&h->ss, &nw); 3389 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3390 PFNL_CMD_GET_RULESETS); 3391 3392 snl_add_msg_attr_string(&nw, PF_RS_PATH, path); 3393 3394 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3395 e.error = ENXIO; 3396 goto out; 3397 } 3398 3399 seq_id = hdr->nlmsg_seq; 3400 3401 if (! snl_send_message(&h->ss, hdr)) { 3402 e.error = ENXIO; 3403 goto out; 3404 } 3405 3406 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3407 if (! snl_parse_nlmsg(&h->ss, hdr, &ruleset_parser, &rs)) 3408 continue; 3409 } 3410 3411 *nr = rs.nr; 3412 3413 out: 3414 snl_clear_lb(&h->ss); 3415 return (e.error); 3416 } 3417 3418 int 3419 pfctl_get_ruleset(struct pfctl_handle *h, const char *path, uint32_t nr, struct pfioc_ruleset *rs) 3420 { 3421 struct snl_writer nw; 3422 struct snl_errmsg_data e = {}; 3423 struct nlmsghdr *hdr; 3424 uint32_t seq_id; 3425 3426 snl_init_writer(&h->ss, &nw); 3427 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3428 PFNL_CMD_GET_RULESET); 3429 3430 snl_add_msg_attr_string(&nw, PF_RS_PATH, path); 3431 snl_add_msg_attr_u32(&nw, PF_RS_NR, nr); 3432 3433 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3434 e.error = ENXIO; 3435 } 3436 3437 seq_id = hdr->nlmsg_seq; 3438 3439 if (! snl_send_message(&h->ss, hdr)) { 3440 e.error = ENXIO; 3441 goto out; 3442 } 3443 3444 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3445 if (! snl_parse_nlmsg(&h->ss, hdr, &ruleset_parser, rs)) 3446 continue; 3447 } 3448 3449 rs->nr = nr; 3450 strlcpy(rs->path, path, sizeof(rs->path)); 3451 3452 out: 3453 snl_clear_lb(&h->ss); 3454 return (e.error); 3455 } 3456 3457 #define _OUT(_field) offsetof(struct pfctl_src_node, _field) 3458 static struct snl_attr_parser ap_srcnode[] = { 3459 { .type = PF_SN_ADDR, .off = _OUT(addr), .cb = snl_attr_get_in6_addr }, 3460 { .type = PF_SN_RADDR, .off = _OUT(raddr), .cb = snl_attr_get_in6_addr }, 3461 { .type = PF_SN_RULE_NR, .off = _OUT(rule), .cb = snl_attr_get_uint32 }, 3462 { .type = PF_SN_BYTES_IN, .off = _OUT(bytes[0]), .cb = snl_attr_get_uint64 }, 3463 { .type = PF_SN_BYTES_OUT, .off = _OUT(bytes[1]), .cb = snl_attr_get_uint64 }, 3464 { .type = PF_SN_PACKETS_IN, .off = _OUT(packets[0]), .cb = snl_attr_get_uint64 }, 3465 { .type = PF_SN_PACKETS_OUT, .off = _OUT(packets[1]), .cb = snl_attr_get_uint64 }, 3466 { .type = PF_SN_STATES, .off = _OUT(states), .cb = snl_attr_get_uint32 }, 3467 { .type = PF_SN_CONNECTIONS, .off = _OUT(conn), .cb = snl_attr_get_uint32 }, 3468 { .type = PF_SN_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 }, 3469 { .type = PF_SN_RULE_TYPE, .off = _OUT(ruletype), .cb = snl_attr_get_uint8 }, 3470 { .type = PF_SN_CREATION, .off = _OUT(creation), .cb = snl_attr_get_uint64 }, 3471 { .type = PF_SN_EXPIRE, .off = _OUT(expire), .cb = snl_attr_get_uint64 }, 3472 { .type = PF_SN_CONNECTION_RATE, .off = _OUT(conn_rate), .arg = &pfctl_threshold_parser, .cb = snl_attr_get_nested }, 3473 { .type = PF_SN_RAF, .off = _OUT(raf), .cb = snl_attr_get_uint8 }, 3474 { .type = PF_SN_NODE_TYPE, .off = _OUT(type), .cb = snl_attr_get_uint8 }, 3475 }; 3476 #undef _OUT 3477 SNL_DECLARE_PARSER(srcnode_parser, struct genlmsghdr, snl_f_p_empty, ap_srcnode); 3478 3479 int 3480 pfctl_get_srcnodes(struct pfctl_handle *h, pfctl_get_srcnode_fn fn, void *arg) 3481 { 3482 struct snl_writer nw; 3483 struct pfctl_src_node sn; 3484 struct snl_errmsg_data e = {}; 3485 struct nlmsghdr *hdr; 3486 uint32_t seq_id; 3487 int ret; 3488 3489 snl_init_writer(&h->ss, &nw); 3490 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3491 PFNL_CMD_GET_SRCNODES); 3492 3493 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3494 e.error = ENXIO; 3495 goto out; 3496 } 3497 3498 seq_id = hdr->nlmsg_seq; 3499 3500 if (!snl_send_message(&h->ss, hdr)) { 3501 e.error = ENXIO; 3502 goto out; 3503 } 3504 3505 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3506 bzero(&sn, sizeof(sn)); 3507 if (!snl_parse_nlmsg(&h->ss, hdr, &srcnode_parser, &sn)) 3508 continue; 3509 3510 ret = fn(&sn, arg); 3511 if (ret != 0) 3512 return (ret); 3513 } 3514 3515 out: 3516 snl_clear_lb(&h->ss); 3517 return (e.error); 3518 } 3519 3520 static struct snl_attr_parser ap_ndel[] = { 3521 { .type = PF_T_NBR_DELETED, .off = 0, .cb = snl_attr_get_uint32 }, 3522 }; 3523 SNL_DECLARE_PARSER(ndel_parser, struct genlmsghdr, snl_f_p_empty, ap_ndel); 3524 3525 int 3526 pfctl_clear_tables(struct pfctl_handle *h, struct pfr_table *filter, 3527 int *ndel, int flags) 3528 { 3529 struct snl_writer nw; 3530 struct snl_errmsg_data e = {}; 3531 struct nlmsghdr *hdr; 3532 uint32_t seq_id; 3533 3534 snl_init_writer(&h->ss, &nw); 3535 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3536 PFNL_CMD_CLEAR_TABLES); 3537 3538 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor); 3539 snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name); 3540 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags); 3541 snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags); 3542 3543 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3544 e.error = ENXIO; 3545 goto out; 3546 } 3547 3548 seq_id = hdr->nlmsg_seq; 3549 3550 if (!snl_send_message(&h->ss, hdr)) { 3551 e.error = ENXIO; 3552 goto out; 3553 } 3554 3555 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3556 if (!snl_parse_nlmsg(&h->ss, hdr, &ndel_parser, ndel)) 3557 continue; 3558 } 3559 3560 out: 3561 snl_clear_lb(&h->ss); 3562 return (e.error); 3563 } 3564 3565 static struct snl_attr_parser ap_nadd[] = { 3566 { .type = PF_T_NBR_ADDED, .off = 0, .cb = snl_attr_get_uint32 }, 3567 }; 3568 SNL_DECLARE_PARSER(nadd_parser, struct genlmsghdr, snl_f_p_empty, ap_nadd); 3569 int 3570 pfctl_add_table(struct pfctl_handle *h, struct pfr_table *table, 3571 int *nadd, int flags) 3572 { 3573 struct snl_writer nw; 3574 struct snl_errmsg_data e = {}; 3575 struct nlmsghdr *hdr; 3576 uint32_t seq_id; 3577 3578 snl_init_writer(&h->ss, &nw); 3579 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3580 PFNL_CMD_ADD_TABLE); 3581 3582 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, table->pfrt_anchor); 3583 snl_add_msg_attr_string(&nw, PF_T_NAME, table->pfrt_name); 3584 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, table->pfrt_flags); 3585 snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags); 3586 3587 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3588 e.error = ENXIO; 3589 goto out; 3590 } 3591 3592 seq_id = hdr->nlmsg_seq; 3593 3594 if (!snl_send_message(&h->ss, hdr)) { 3595 e.error = ENXIO; 3596 goto out; 3597 } 3598 3599 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3600 if (!snl_parse_nlmsg(&h->ss, hdr, &nadd_parser, nadd)) 3601 continue; 3602 } 3603 3604 out: 3605 snl_clear_lb(&h->ss); 3606 return (e.error); 3607 } 3608 3609 int 3610 pfctl_del_table(struct pfctl_handle *h, struct pfr_table *table, 3611 int *ndel, int flags) 3612 { 3613 struct snl_writer nw; 3614 struct snl_errmsg_data e = {}; 3615 struct nlmsghdr *hdr; 3616 uint32_t seq_id; 3617 3618 snl_init_writer(&h->ss, &nw); 3619 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3620 PFNL_CMD_DEL_TABLE); 3621 3622 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, table->pfrt_anchor); 3623 snl_add_msg_attr_string(&nw, PF_T_NAME, table->pfrt_name); 3624 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, table->pfrt_flags); 3625 snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags); 3626 3627 hdr = snl_finalize_msg(&nw); 3628 if (hdr == NULL) { 3629 e.error = ENXIO; 3630 goto out; 3631 } 3632 3633 seq_id = hdr->nlmsg_seq; 3634 3635 if (! snl_send_message(&h->ss, hdr)) { 3636 e.error = ENXIO; 3637 goto out; 3638 } 3639 3640 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3641 if (!snl_parse_nlmsg(&h->ss, hdr, &ndel_parser, ndel)) 3642 continue; 3643 } 3644 3645 out: 3646 snl_clear_lb(&h->ss); 3647 return (e.error); 3648 } 3649 3650 static bool 3651 snl_attr_get_uint64_into_int_array(struct snl_state *ss, struct nlattr *nla, 3652 const void *arg, void *target) 3653 { 3654 uint64_t *u64target; 3655 struct snl_uint64_array a = { 3656 .count = 0, 3657 .max = (size_t)arg, 3658 }; 3659 bool error; 3660 3661 u64target = malloc(a.max * sizeof(uint64_t)); 3662 a.array = u64target; 3663 3664 error = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), &array_parser, &a); 3665 if (! error) 3666 return (error); 3667 3668 for (size_t i = 0; i < a.count; i++) 3669 ((int *)target)[i] = (int)u64target[i]; 3670 3671 free(u64target); 3672 3673 return (true); 3674 } 3675 3676 #define _OUT(_field) offsetof(struct pfr_table, _field) 3677 static const struct snl_attr_parser ap_table[] = { 3678 { .type = PF_T_ANCHOR, .off = _OUT(pfrt_anchor), .arg = (void *)MAXPATHLEN, .cb = snl_attr_copy_string }, 3679 { .type = PF_T_NAME, .off = _OUT(pfrt_name), .arg = (void *)PF_TABLE_NAME_SIZE, .cb =snl_attr_copy_string }, 3680 { .type = PF_T_TABLE_FLAGS, .off = _OUT(pfrt_flags), .cb = snl_attr_get_uint32 }, 3681 }; 3682 #undef _OUT 3683 SNL_DECLARE_ATTR_PARSER(table_parser, ap_table); 3684 #define _OUT(_field) offsetof(struct pfr_tstats, _field) 3685 static struct snl_attr_parser ap_tstats[] = { 3686 { .type = PF_TS_TABLE, .off = _OUT(pfrts_t), .arg = &table_parser, .cb = snl_attr_get_nested }, 3687 { .type = PF_TS_PACKETS, .off = _OUT(pfrts_packets), .arg = (void *)(PFR_DIR_MAX * PFR_OP_TABLE_MAX), .cb = snl_attr_get_uint64_array}, 3688 { .type = PF_TS_BYTES, .off = _OUT(pfrts_bytes), .arg = (void *)(PFR_DIR_MAX * PFR_OP_TABLE_MAX), .cb = snl_attr_get_uint64_array }, 3689 { .type = PF_TS_MATCH, .off = _OUT(pfrts_match), .cb = snl_attr_get_uint64 }, 3690 {. type = PF_TS_NOMATCH, .off = _OUT(pfrts_nomatch), .cb = snl_attr_get_uint64 }, 3691 { .type = PF_TS_TZERO, .off = _OUT(pfrts_tzero), .cb = snl_attr_get_uint64 }, 3692 { .type = PF_TS_CNT, .off = _OUT(pfrts_cnt), .cb = snl_attr_get_uint64 }, 3693 { .type = PF_TS_REFCNT, .off = _OUT(pfrts_refcnt), . arg = (void *)PFR_REFCNT_MAX, .cb = snl_attr_get_uint64_into_int_array }, 3694 }; 3695 #undef _OUT 3696 SNL_DECLARE_PARSER(tstats_parser, struct genlmsghdr, snl_f_p_empty, ap_tstats); 3697 3698 int 3699 pfctl_get_tstats(struct pfctl_handle *h, const struct pfr_table *filter, 3700 pfctl_get_tstats_fn fn, void *arg) 3701 { 3702 struct snl_writer nw; 3703 struct snl_errmsg_data e = {}; 3704 struct nlmsghdr *hdr; 3705 uint32_t seq_id; 3706 int ret; 3707 3708 snl_init_writer(&h->ss, &nw); 3709 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3710 PFNL_CMD_GET_TSTATS); 3711 3712 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor); 3713 snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name); 3714 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags); 3715 3716 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3717 e.error = ENXIO; 3718 goto out; 3719 } 3720 3721 seq_id = hdr->nlmsg_seq; 3722 3723 if (! snl_send_message(&h->ss, hdr)) { 3724 e.error = ENXIO; 3725 goto out; 3726 } 3727 3728 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3729 struct pfr_tstats tstats = {}; 3730 3731 if (!snl_parse_nlmsg(&h->ss, hdr, &tstats_parser, &tstats)) 3732 continue; 3733 3734 ret = fn(&tstats, arg); 3735 if (ret != 0) 3736 break; 3737 } 3738 3739 out: 3740 snl_clear_lb(&h->ss); 3741 return (e.error); 3742 } 3743 3744 static struct snl_attr_parser ap_tstats_clr[] = { 3745 { .type = PF_TS_NZERO, .off = 0, .cb = snl_attr_get_uint64 }, 3746 }; 3747 SNL_DECLARE_PARSER(tstats_clr_parser, struct genlmsghdr, snl_f_p_empty, ap_tstats_clr); 3748 3749 int 3750 pfctl_clear_tstats(struct pfctl_handle *h, const struct pfr_table *filter, 3751 int *nzero, int flags) 3752 { 3753 struct snl_writer nw; 3754 struct snl_errmsg_data e = {}; 3755 struct nlmsghdr *hdr; 3756 uint64_t zero; 3757 uint32_t seq_id; 3758 3759 snl_init_writer(&h->ss, &nw); 3760 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3761 PFNL_CMD_CLR_TSTATS); 3762 3763 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor); 3764 snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name); 3765 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags); 3766 snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags); 3767 3768 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3769 e.error = ENXIO; 3770 goto out; 3771 } 3772 3773 seq_id = hdr->nlmsg_seq; 3774 3775 if (! snl_send_message(&h->ss, hdr)) { 3776 e.error = ENXIO; 3777 goto out; 3778 } 3779 3780 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3781 if (!snl_parse_nlmsg(&h->ss, hdr, &tstats_clr_parser, &zero)) 3782 continue; 3783 if (nzero) 3784 *nzero = (uint32_t)zero; 3785 } 3786 3787 out: 3788 snl_clear_lb(&h->ss); 3789 return (e.error); 3790 } 3791 3792 static struct snl_attr_parser ap_clr_addrs[] = { 3793 { .type = PF_T_NBR_DELETED, .off = 0, .cb = snl_attr_get_uint64 }, 3794 }; 3795 SNL_DECLARE_PARSER(clr_addrs_parser, struct genlmsghdr, snl_f_p_empty, ap_clr_addrs); 3796 3797 int 3798 pfctl_clear_addrs(struct pfctl_handle *h, const struct pfr_table *filter, 3799 int *ndel, int flags) 3800 { 3801 struct snl_writer nw; 3802 struct snl_errmsg_data e = {}; 3803 struct nlmsghdr *hdr; 3804 uint64_t del; 3805 uint32_t seq_id; 3806 3807 snl_init_writer(&h->ss, &nw); 3808 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3809 PFNL_CMD_CLR_ADDRS); 3810 3811 snl_add_msg_attr_string(&nw, PF_T_ANCHOR, filter->pfrt_anchor); 3812 snl_add_msg_attr_string(&nw, PF_T_NAME, filter->pfrt_name); 3813 snl_add_msg_attr_u32(&nw, PF_T_TABLE_FLAGS, filter->pfrt_flags); 3814 snl_add_msg_attr_u32(&nw, PF_T_FLAGS, flags); 3815 3816 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3817 e.error = ENXIO; 3818 goto out; 3819 } 3820 3821 seq_id = hdr->nlmsg_seq; 3822 3823 if (! snl_send_message(&h->ss, hdr)) { 3824 e.error = ENXIO; 3825 goto out; 3826 } 3827 3828 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3829 if (!snl_parse_nlmsg(&h->ss, hdr, &clr_addrs_parser, &del)) 3830 continue; 3831 if (ndel) 3832 *ndel = (uint32_t)del; 3833 } 3834 3835 out: 3836 snl_clear_lb(&h->ss); 3837 return (e.error); 3838 } 3839 3840 struct nl_astats { 3841 struct pfr_astats *a; 3842 size_t max; 3843 size_t count; 3844 uint32_t total_count; 3845 uint32_t zeroed; 3846 }; 3847 3848 #define _OUT(_field) offsetof(struct pfr_astats, _field) 3849 static const struct snl_attr_parser ap_pfr_astats[] = { 3850 { .type = PF_AS_ADDR , .off = _OUT(pfras_a), .arg = &pfr_addr_parser, .cb = snl_attr_get_nested }, 3851 { .type = PF_AS_PACKETS, .off = _OUT(pfras_packets), .arg = (void *)(PFR_DIR_MAX * PFR_OP_ADDR_MAX), .cb = snl_attr_get_uint64_array }, 3852 { .type = PF_AS_BYTES, .off = _OUT(pfras_bytes), .arg = (void *)(PFR_DIR_MAX * PFR_OP_ADDR_MAX), .cb = snl_attr_get_uint64_array }, 3853 { .type = PF_AS_TZERO, .off = _OUT(pfras_tzero), .cb = snl_attr_get_time_t }, 3854 }; 3855 #undef _OUT 3856 SNL_DECLARE_ATTR_PARSER(pfr_astats_parser, ap_pfr_astats); 3857 3858 static bool 3859 snl_attr_get_pfr_astats(struct snl_state *ss, struct nlattr *nla, 3860 const void *arg __unused, void *target) 3861 { 3862 struct nl_astats *a = (struct nl_astats *)target; 3863 bool ret; 3864 3865 if (a->count >= a->max) 3866 return (false); 3867 3868 ret = snl_parse_header(ss, NLA_DATA(nla), NLA_DATA_LEN(nla), 3869 &pfr_astats_parser, &a->a[a->count]); 3870 if (ret) 3871 a->count++; 3872 3873 return (ret); 3874 } 3875 3876 #define _OUT(_field) offsetof(struct nl_astats, _field) 3877 static struct snl_attr_parser ap_table_get_astats[] = { 3878 { .type = PF_TAS_ASTATS, .off = 0, .cb = snl_attr_get_pfr_astats }, 3879 { .type = PF_TAS_ASTATS_COUNT, .off = _OUT(total_count), .cb = snl_attr_get_uint32 }, 3880 { .type = PF_TAS_ASTATS_ZEROED, .off = _OUT(zeroed), .cb = snl_attr_get_uint32 }, 3881 }; 3882 #undef _OUT 3883 SNL_DECLARE_PARSER(table_astats_parser, struct genlmsghdr, snl_f_p_empty, ap_table_get_astats); 3884 3885 int 3886 pfctl_get_astats(struct pfctl_handle *h, const struct pfr_table *tbl, 3887 struct pfr_astats *as, int *size, int flags) 3888 { 3889 struct snl_writer nw; 3890 struct snl_errmsg_data e = {}; 3891 struct nlmsghdr *hdr; 3892 struct nl_astats out = { 0 }; 3893 uint32_t seq_id; 3894 3895 if (tbl == NULL || size == NULL || *size < 0 || 3896 (*size && as == NULL)) 3897 return (EINVAL); 3898 3899 snl_init_writer(&h->ss, &nw); 3900 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3901 PFNL_CMD_TABLE_GET_ASTATS); 3902 3903 snl_add_msg_attr_table(&nw, PF_TAS_TABLE, tbl); 3904 snl_add_msg_attr_u32(&nw, PF_TAS_FLAGS, flags); 3905 3906 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3907 e.error = ENXIO; 3908 goto out; 3909 } 3910 3911 seq_id = hdr->nlmsg_seq; 3912 3913 if (! snl_send_message(&h->ss, hdr)) { 3914 e.error = ENXIO; 3915 goto out; 3916 } 3917 3918 out.a = as; 3919 out.max = *size; 3920 3921 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3922 if (! snl_parse_nlmsg(&h->ss, hdr, &table_astats_parser, &out)) 3923 continue; 3924 } 3925 3926 *size = out.total_count; 3927 3928 out: 3929 snl_clear_lb(&h->ss); 3930 return (e.error); 3931 } 3932 3933 static int 3934 _pfctl_clr_astats(struct pfctl_handle *h, const struct pfr_table *tbl, 3935 struct pfr_addr *addrs, int size, int *nzero, int flags) 3936 { 3937 struct snl_writer nw; 3938 struct snl_errmsg_data e = {}; 3939 struct nlmsghdr *hdr; 3940 uint32_t seq_id; 3941 struct nl_astats attrs; 3942 3943 snl_init_writer(&h->ss, &nw); 3944 hdr = snl_create_genl_msg_request(&nw, h->family_id, 3945 PFNL_CMD_TABLE_CLEAR_ASTATS); 3946 3947 snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl); 3948 snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags); 3949 for (int i = 0; i < size; i++) 3950 snl_add_msg_attr_pfr_addr(&nw, PF_TA_ADDR, &addrs[i]); 3951 3952 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 3953 e.error = ENXIO; 3954 goto out; 3955 } 3956 3957 seq_id = hdr->nlmsg_seq; 3958 3959 if (! snl_send_message(&h->ss, hdr)) { 3960 e.error = ENXIO; 3961 goto out; 3962 } 3963 3964 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 3965 if (! snl_parse_nlmsg(&h->ss, hdr, &table_astats_parser, &attrs)) 3966 continue; 3967 } 3968 3969 if (nzero) 3970 *nzero = attrs.zeroed; 3971 3972 out: 3973 snl_clear_lb(&h->ss); 3974 return (e.error); 3975 } 3976 3977 int 3978 pfctl_clr_astats(struct pfctl_handle *h, const struct pfr_table *tbl, 3979 struct pfr_addr *addrs, int size, int *nzero, int flags) 3980 { 3981 int ret; 3982 int off = 0; 3983 int partial_zeroed; 3984 int chunk_size; 3985 3986 do { 3987 chunk_size = MIN(size - off, 256); 3988 ret = _pfctl_clr_astats(h, tbl, &addrs[off], chunk_size, 3989 &partial_zeroed, flags); 3990 if (ret != 0) 3991 break; 3992 if (nzero) 3993 *nzero += partial_zeroed; 3994 off += chunk_size; 3995 } while (off < size); 3996 3997 return (ret); 3998 } 3999 4000 static int 4001 _pfctl_test_addrs(struct pfctl_handle *h, const struct pfr_table *tbl, 4002 struct pfr_addr *addrs, int size, int *nmatch, int flags) 4003 { 4004 struct snl_writer nw; 4005 struct snl_errmsg_data e = {}; 4006 struct nlmsghdr *hdr; 4007 uint32_t seq_id; 4008 struct nl_astats attrs; 4009 4010 snl_init_writer(&h->ss, &nw); 4011 hdr = snl_create_genl_msg_request(&nw, h->family_id, 4012 PFNL_CMD_TABLE_TEST_ADDRS); 4013 4014 snl_add_msg_attr_table(&nw, PF_TA_TABLE, tbl); 4015 snl_add_msg_attr_u32(&nw, PF_TA_FLAGS, flags); 4016 for (int i = 0; i < size; i++) 4017 snl_add_msg_attr_pfr_addr(&nw, PF_TA_ADDR, &addrs[i]); 4018 4019 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4020 e.error = ENXIO; 4021 goto out; 4022 } 4023 4024 seq_id = hdr->nlmsg_seq; 4025 4026 if (! snl_send_message(&h->ss, hdr)) { 4027 e.error = ENXIO; 4028 goto out; 4029 } 4030 4031 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4032 if (! snl_parse_nlmsg(&h->ss, hdr, &table_astats_parser, &attrs)) 4033 continue; 4034 } 4035 4036 if (nmatch) 4037 *nmatch = attrs.total_count; 4038 4039 out: 4040 snl_clear_lb(&h->ss); 4041 return (e.error); 4042 } 4043 4044 int 4045 pfctl_test_addrs(struct pfctl_handle *h, const struct pfr_table *tbl, 4046 struct pfr_addr *addrs, int size, int *nmatch, int flags) 4047 { 4048 int ret; 4049 int off = 0; 4050 int partial_match; 4051 int chunk_size; 4052 4053 if (nmatch) 4054 *nmatch = 0; 4055 4056 do { 4057 chunk_size = MIN(size - off, 256); 4058 ret = _pfctl_test_addrs(h, tbl, &addrs[off], chunk_size, 4059 &partial_match, flags); 4060 if (ret != 0) 4061 break; 4062 if (nmatch) 4063 *nmatch += partial_match; 4064 off += chunk_size; 4065 } while (off < size); 4066 4067 return (ret); 4068 } 4069 4070 struct nl_ina_define { 4071 uint32_t nadd; 4072 uint32_t naddr; 4073 }; 4074 4075 #define _OUT(_field) offsetof(struct nl_ina_define, _field) 4076 static struct snl_attr_parser ap_ina_define[] = { 4077 { .type = PF_ID_NADD, .off = _OUT(nadd), .cb = snl_attr_get_uint32 }, 4078 { .type = PF_ID_NADDR, .off = _OUT(naddr), .cb = snl_attr_get_uint32 }, 4079 }; 4080 #undef _OUT 4081 SNL_DECLARE_PARSER(ina_define_parser, struct genlmsghdr, snl_f_p_empty, ap_ina_define); 4082 4083 static int 4084 _pfctl_ina_define(struct pfctl_handle *h, struct pfr_table *tbl, 4085 struct pfr_addr *addr, int size, int *nadd, int *naddr, 4086 int ticket, int flags) 4087 { 4088 struct snl_writer nw; 4089 struct snl_errmsg_data e = {}; 4090 struct nlmsghdr *hdr; 4091 struct nl_ina_define attrs = {}; 4092 uint32_t seq_id; 4093 4094 assert(size <= 256); 4095 4096 snl_init_writer(&h->ss, &nw); 4097 hdr = snl_create_genl_msg_request(&nw, h->family_id, 4098 PFNL_CMD_INA_DEFINE); 4099 4100 snl_add_msg_attr_table(&nw, PF_ID_TABLE, tbl); 4101 snl_add_msg_attr_u32(&nw, PF_ID_TICKET, ticket); 4102 snl_add_msg_attr_u32(&nw, PF_ID_FLAGS, flags); 4103 for (int i = 0; i < size; i++) 4104 snl_add_msg_attr_pfr_addr(&nw, PF_ID_ADDR, &addr[i]); 4105 4106 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4107 e.error = ENXIO; 4108 goto out; 4109 } 4110 4111 seq_id = hdr->nlmsg_seq; 4112 4113 if (! snl_send_message(&h->ss, hdr)) { 4114 e.error = ENXIO; 4115 goto out; 4116 } 4117 4118 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4119 if (! snl_parse_nlmsg(&h->ss, hdr, &ina_define_parser, &attrs)) 4120 continue; 4121 } 4122 4123 if (*nadd) 4124 *nadd = attrs.nadd; 4125 if (*naddr) 4126 *naddr = attrs.naddr; 4127 4128 out: 4129 snl_clear_lb(&h->ss); 4130 return (e.error); 4131 } 4132 4133 int 4134 pfctl_ina_define(struct pfctl_handle *h, struct pfr_table *tbl, 4135 struct pfr_addr *addr, int size, int *nadd, int *naddr, 4136 int ticket, int flags) 4137 { 4138 int ret; 4139 int off = 0; 4140 int partial_add, partial_addr; 4141 int chunk_size; 4142 4143 if (nadd) 4144 *nadd = 0; 4145 if (naddr) 4146 *naddr = 0; 4147 4148 do { 4149 chunk_size = MIN(size - off, 256); 4150 ret = _pfctl_ina_define(h, tbl, &addr[off], chunk_size, 4151 &partial_add, &partial_addr, ticket, flags); 4152 if (ret != 0) 4153 break; 4154 if (nadd) 4155 *nadd += partial_add; 4156 if (naddr) 4157 *naddr += partial_addr; 4158 off += chunk_size; 4159 } while (off < size); 4160 4161 return (ret); 4162 } 4163 4164 static void 4165 snl_add_msg_attr_limit_rate(struct snl_writer *nw, uint32_t type, 4166 const struct pfctl_limit_rate *rate) 4167 { 4168 int off; 4169 4170 off = snl_add_msg_attr_nested(nw, type); 4171 4172 snl_add_msg_attr_u32(nw, PF_LR_LIMIT, rate->limit); 4173 snl_add_msg_attr_u32(nw, PF_LR_SECONDS, rate->seconds); 4174 4175 snl_end_attr_nested(nw, off); 4176 } 4177 4178 #define _OUT(_field) offsetof(struct pfctl_limit_rate, _field) 4179 static const struct snl_attr_parser ap_limit_rate[] = { 4180 { .type = PF_LR_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 }, 4181 { .type = PF_LR_SECONDS, .off = _OUT(seconds), .cb = snl_attr_get_uint32 }, 4182 }; 4183 SNL_DECLARE_ATTR_PARSER(limit_rate_parser, ap_limit_rate); 4184 #undef _OUT 4185 4186 #define _OUT(_field) offsetof(struct pfctl_state_lim, _field) 4187 static struct snl_attr_parser ap_statelim[] = { 4188 { .type = PF_SL_NAME, .off = _OUT(name), .arg_u32 = PF_STATELIM_NAME_LEN, .cb = snl_attr_copy_string }, 4189 { .type = PF_SL_ID, .off = _OUT(id), .cb = snl_attr_get_uint32 }, 4190 { .type = PF_SL_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 }, 4191 { .type = PF_SL_RATE, .off = _OUT(rate), .arg = &limit_rate_parser, .cb = snl_attr_get_nested }, 4192 { .type = PF_SL_DESCR, .off = _OUT(description), .arg_u32 = PF_STATELIM_DESCR_LEN, .cb = snl_attr_copy_string }, 4193 { .type = PF_SL_INUSE, .off = _OUT(inuse), .cb = snl_attr_get_uint32 }, 4194 { .type = PF_SL_ADMITTED, .off = _OUT(admitted), .cb = snl_attr_get_uint64 }, 4195 { .type = PF_SL_HARDLIMITED, .off = _OUT(hardlimited), .cb = snl_attr_get_uint64 }, 4196 { .type = PF_SL_RATELIMITED, .off = _OUT(ratelimited), .cb = snl_attr_get_uint64 }, 4197 }; 4198 #undef _OUT 4199 SNL_DECLARE_PARSER(statelim_parser, struct genlmsghdr, snl_f_p_empty, ap_statelim); 4200 4201 int 4202 pfctl_state_limiter_nget(struct pfctl_handle *h, struct pfctl_state_lim *lim) 4203 { 4204 struct snl_writer nw; 4205 struct snl_errmsg_data e = {}; 4206 struct nlmsghdr *hdr; 4207 uint32_t seq_id; 4208 4209 snl_init_writer(&h->ss, &nw); 4210 hdr = snl_create_genl_msg_request(&nw, h->family_id, 4211 PFNL_CMD_STATE_LIMITER_NGET); 4212 4213 snl_add_msg_attr_u32(&nw, PF_SL_ID, lim->id); 4214 4215 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4216 e.error = ENXIO; 4217 goto out; 4218 } 4219 4220 seq_id = hdr->nlmsg_seq; 4221 4222 if (! snl_send_message(&h->ss, hdr)) { 4223 e.error = ENXIO; 4224 goto out; 4225 } 4226 4227 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4228 if (! snl_parse_nlmsg(&h->ss, hdr, &statelim_parser, lim)) 4229 continue; 4230 } 4231 4232 out: 4233 snl_clear_lb(&h->ss); 4234 return (e.error); 4235 } 4236 4237 int 4238 pfctl_state_limiter_add(struct pfctl_handle *h, struct pfctl_state_lim *lim) 4239 { 4240 struct snl_writer nw; 4241 struct snl_errmsg_data e = {}; 4242 struct nlmsghdr *hdr; 4243 uint32_t seq_id; 4244 4245 snl_init_writer(&h->ss, &nw); 4246 hdr = snl_create_genl_msg_request(&nw, h->family_id, 4247 PFNL_CMD_STATE_LIMITER_ADD); 4248 4249 snl_add_msg_attr_u32(&nw, PF_SL_ID, lim->id); 4250 snl_add_msg_attr_u32(&nw, PF_SL_TICKET, lim->ticket); 4251 snl_add_msg_attr_string(&nw, PF_SL_NAME, lim->name); 4252 snl_add_msg_attr_u32(&nw, PF_SL_LIMIT, lim->limit); 4253 snl_add_msg_attr_limit_rate(&nw, PF_SL_RATE, &lim->rate); 4254 snl_add_msg_attr_string(&nw, PF_SL_DESCR, lim->description); 4255 4256 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4257 e.error = ENXIO; 4258 goto out; 4259 } 4260 4261 seq_id = hdr->nlmsg_seq; 4262 4263 if (! snl_send_message(&h->ss, hdr)) { 4264 e.error = ENXIO; 4265 goto out; 4266 } 4267 4268 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4269 if (! snl_parse_nlmsg(&h->ss, hdr, &statelim_parser, lim)) 4270 continue; 4271 } 4272 4273 out: 4274 snl_clear_lb(&h->ss); 4275 return (e.error); 4276 } 4277 4278 #define _OUT(_field) offsetof(struct pfctl_source_lim, _field) 4279 static struct snl_attr_parser ap_sourcelim[] = { 4280 { .type = PF_SCL_NAME, .off = _OUT(name), .arg_u32 = PF_SOURCELIM_NAME_LEN, .cb = snl_attr_copy_string }, 4281 { .type = PF_SCL_ID, .off = _OUT(id), .cb = snl_attr_get_uint32 }, 4282 { .type = PF_SCL_ENTRIES, .off = _OUT(entries), .cb = snl_attr_get_uint32 }, 4283 { .type = PF_SCL_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 }, 4284 { .type = PF_SCL_RATE, .off = _OUT(rate), .arg = &limit_rate_parser, .cb = snl_attr_get_nested }, 4285 { .type = PF_SCL_OVERLOAD_TBL_NAME, .off = _OUT(overload_tblname), .arg_u32 = PF_TABLE_NAME_SIZE, .cb = snl_attr_copy_string }, 4286 { .type = PF_SCL_OVERLOAD_HIGH_WM, .off = _OUT(overload_hwm), .cb = snl_attr_get_uint32 }, 4287 { .type = PF_SCL_OVERLOAD_LOW_WM, .off = _OUT(overload_lwm), .cb = snl_attr_get_uint32 }, 4288 { .type = PF_SCL_INET_PREFIX, .off = _OUT(inet_prefix), .cb = snl_attr_get_uint32 }, 4289 { .type = PF_SCL_INET6_PREFIX, .off = _OUT(inet6_prefix), .cb = snl_attr_get_uint32 }, 4290 { .type = PF_SCL_DESCR, .off = _OUT(description), .arg_u32 = PF_SOURCELIM_DESCR_LEN, .cb = snl_attr_copy_string }, 4291 { .type = PF_SCL_NENTRIES, .off = _OUT(nentries), .cb = snl_attr_get_uint32 }, 4292 { .type = PF_SCL_INUSE, .off = _OUT(inuse), .cb = snl_attr_get_uint32 }, 4293 { .type = PF_SCL_ADDR_ALLOCS, .off = _OUT(addrallocs), .cb = snl_attr_get_uint64 }, 4294 { .type = PF_SCL_ADDR_NOMEM, .off = _OUT(addrnomem), .cb = snl_attr_get_uint64 }, 4295 { .type = PF_SCL_ADMITTED, .off = _OUT(admitted), .cb = snl_attr_get_uint64 }, 4296 { .type = PF_SCL_ADDRLIMITED, .off = _OUT(addrlimited), .cb = snl_attr_get_uint64 }, 4297 { .type = PF_SCL_HARDLIMITED, .off = _OUT(hardlimited), .cb = snl_attr_get_uint64 }, 4298 { .type = PF_SCL_RATELIMITED, .off = _OUT(ratelimited), .cb = snl_attr_get_uint64 }, 4299 }; 4300 #undef _OUT 4301 SNL_DECLARE_PARSER(sourcelim_parser, struct genlmsghdr, snl_f_p_empty, ap_sourcelim); 4302 4303 int 4304 pfctl_source_limiter_add(struct pfctl_handle *h, struct pfctl_source_lim *lim) 4305 { 4306 struct snl_writer nw; 4307 struct snl_errmsg_data e = {}; 4308 struct nlmsghdr *hdr; 4309 uint32_t seq_id; 4310 4311 snl_init_writer(&h->ss, &nw); 4312 hdr = snl_create_genl_msg_request(&nw, h->family_id, 4313 PFNL_CMD_SOURCE_LIMITER_ADD); 4314 4315 snl_add_msg_attr_u32(&nw, PF_SCL_TICKET, lim->ticket); 4316 snl_add_msg_attr_string(&nw, PF_SCL_NAME, lim->name); 4317 snl_add_msg_attr_u32(&nw, PF_SCL_ID, lim->id); 4318 snl_add_msg_attr_u32(&nw, PF_SCL_ENTRIES, lim->entries); 4319 snl_add_msg_attr_u32(&nw, PF_SCL_LIMIT, lim->limit); 4320 snl_add_msg_attr_limit_rate(&nw, PF_SCL_RATE, &lim->rate); 4321 snl_add_msg_attr_string(&nw, PF_SCL_OVERLOAD_TBL_NAME, lim->overload_tblname); 4322 snl_add_msg_attr_u32(&nw, PF_SCL_OVERLOAD_HIGH_WM, lim->overload_hwm); 4323 snl_add_msg_attr_u32(&nw, PF_SCL_OVERLOAD_LOW_WM, lim->overload_lwm); 4324 snl_add_msg_attr_u32(&nw, PF_SCL_INET_PREFIX, lim->inet_prefix); 4325 snl_add_msg_attr_u32(&nw, PF_SCL_INET6_PREFIX, lim->inet6_prefix); 4326 snl_add_msg_attr_string(&nw, PF_SCL_DESCR, lim->description); 4327 4328 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4329 e.error = ENXIO; 4330 goto out; 4331 } 4332 4333 seq_id = hdr->nlmsg_seq; 4334 4335 if (! snl_send_message(&h->ss, hdr)) { 4336 e.error = ENXIO; 4337 goto out; 4338 } 4339 4340 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4341 if (! snl_parse_nlmsg(&h->ss, hdr, &sourcelim_parser, lim)) 4342 continue; 4343 } 4344 4345 out: 4346 snl_clear_lb(&h->ss); 4347 return (e.error); 4348 } 4349 4350 static int 4351 _pfctl_source_limiter_get(struct pfctl_handle *h, int cmd, struct pfctl_source_lim *lim) 4352 { 4353 struct snl_writer nw; 4354 struct snl_errmsg_data e = {}; 4355 struct nlmsghdr *hdr; 4356 uint32_t seq_id; 4357 4358 snl_init_writer(&h->ss, &nw); 4359 hdr = snl_create_genl_msg_request(&nw, h->family_id, cmd); 4360 4361 snl_add_msg_attr_u32(&nw, PF_SCL_ID, lim->id); 4362 4363 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4364 e.error = ENXIO; 4365 goto out; 4366 } 4367 4368 seq_id = hdr->nlmsg_seq; 4369 4370 if (! snl_send_message(&h->ss, hdr)) { 4371 e.error = ENXIO; 4372 goto out; 4373 } 4374 4375 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4376 if (! snl_parse_nlmsg(&h->ss, hdr, &sourcelim_parser, lim)) 4377 continue; 4378 } 4379 4380 out: 4381 snl_clear_lb(&h->ss); 4382 return (e.error); 4383 } 4384 4385 int 4386 pfctl_source_limiter_get(struct pfctl_handle *h, struct pfctl_source_lim *lim) 4387 { 4388 return (_pfctl_source_limiter_get(h, PFNL_CMD_SOURCE_LIMITER_GET, lim)); 4389 } 4390 4391 int 4392 pfctl_source_limiter_nget(struct pfctl_handle *h, struct pfctl_source_lim *lim) 4393 { 4394 return (_pfctl_source_limiter_get(h, PFNL_CMD_SOURCE_LIMITER_NGET, lim)); 4395 } 4396 4397 #define _OUT(_field) offsetof(struct pfctl_source, _field) 4398 static struct snl_attr_parser ap_source[] = { 4399 { .type = PF_SRC_AF, .off = _OUT(af), .cb = snl_attr_get_uint8 }, 4400 { .type = PF_SRC_RDOMAIN, .off = _OUT(rdomain), .cb = snl_attr_get_uint32 }, 4401 { .type = PF_SRC_ADDR, .off = _OUT(addr), .cb = snl_attr_get_in6_addr }, 4402 { .type = PF_SRC_INUSE, .off = _OUT(inuse), .cb = snl_attr_get_uint32 }, 4403 { .type = PF_SRC_ADMITTED, .off = _OUT(admitted), .cb = snl_attr_get_uint64 }, 4404 { .type = PF_SRC_HARDLIMITED, .off = _OUT(hardlimited), .cb = snl_attr_get_uint64 }, 4405 { .type = PF_SRC_RATELIMITED, .off = _OUT(ratelimited), .cb = snl_attr_get_uint64 }, 4406 { .type = PF_SRC_LIMIT, .off = _OUT(limit), .cb = snl_attr_get_uint32 }, 4407 { .type = PF_SRC_INET_PREFIX, .off = _OUT(inet_prefix), .cb = snl_attr_get_uint32 }, 4408 {. type = PF_SRC_INET6_PREFIX, .off = _OUT(inet6_prefix), .cb = snl_attr_get_uint32 }, 4409 }; 4410 #undef _OUT 4411 SNL_DECLARE_PARSER(source_parser, struct genlmsghdr, snl_f_p_empty, ap_source); 4412 4413 int 4414 pfctl_source_get(struct pfctl_handle *h, int id, pfctl_get_source_fn fn, void *arg) 4415 { 4416 struct snl_writer nw; 4417 struct snl_errmsg_data e = {}; 4418 struct nlmsghdr *hdr; 4419 uint32_t seq_id; 4420 int error; 4421 4422 snl_init_writer(&h->ss, &nw); 4423 hdr = snl_create_genl_msg_request(&nw, h->family_id, 4424 PFNL_CMD_SOURCE_NGET); 4425 4426 snl_add_msg_attr_u32(&nw, PF_SRC_ID, id); 4427 4428 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4429 e.error = ENXIO; 4430 goto out; 4431 } 4432 4433 seq_id = hdr->nlmsg_seq; 4434 4435 if (! snl_send_message(&h->ss, hdr)) { 4436 e.error = ENXIO; 4437 goto out; 4438 } 4439 4440 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4441 struct pfctl_source src; 4442 4443 if (! snl_parse_nlmsg(&h->ss, hdr, &source_parser, &src)) 4444 continue; 4445 4446 error = fn(&src, arg); 4447 if (error != 0) { 4448 e.error = error; 4449 break; 4450 } 4451 } 4452 4453 out: 4454 snl_clear_lb(&h->ss); 4455 return (e.error); 4456 } 4457 4458 int 4459 pfctl_source_clear(struct pfctl_handle *h, struct pfctl_source_clear *kill) 4460 { 4461 struct snl_writer nw; 4462 struct snl_errmsg_data e = {}; 4463 struct nlmsghdr *hdr; 4464 uint32_t seq_id; 4465 4466 snl_init_writer(&h->ss, &nw); 4467 hdr = snl_create_genl_msg_request(&nw, h->family_id, 4468 PFNL_CMD_SOURCE_CLEAR); 4469 4470 snl_add_msg_attr_string(&nw, PF_SC_NAME, kill->name); 4471 snl_add_msg_attr_u32(&nw, PF_SC_ID, kill->id); 4472 snl_add_msg_attr_u32(&nw, PF_SC_RDOMAIN, kill->rdomain); 4473 snl_add_msg_attr_u8(&nw, PF_SC_AF, kill->af); 4474 snl_add_msg_attr_ip6(&nw, PF_SC_ADDR, &kill->addr.v6); 4475 4476 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4477 e.error = ENXIO; 4478 goto out; 4479 } 4480 4481 seq_id = hdr->nlmsg_seq; 4482 4483 if (! snl_send_message(&h->ss, hdr)) { 4484 e.error = ENXIO; 4485 goto out; 4486 } 4487 4488 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4489 } 4490 4491 out: 4492 snl_clear_lb(&h->ss); 4493 return (e.error); 4494 } 4495 4496 int 4497 pfctl_flush_fingerprints(struct pfctl_handle *h) 4498 { 4499 struct snl_writer nw; 4500 struct snl_errmsg_data e = {}; 4501 struct nlmsghdr *hdr; 4502 uint32_t seq_id; 4503 4504 snl_init_writer(&h->ss, &nw); 4505 hdr = snl_create_genl_msg_request(&nw, h->family_id, 4506 PFNL_CMD_OSFP_FLUSH); 4507 4508 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4509 e.error = ENXIO; 4510 goto out; 4511 } 4512 4513 seq_id = hdr->nlmsg_seq; 4514 4515 if (! snl_send_message(&h->ss, hdr)) { 4516 e.error = ENXIO; 4517 goto out; 4518 } 4519 4520 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4521 } 4522 4523 out: 4524 snl_clear_lb(&h->ss); 4525 return (e.error); 4526 } 4527 4528 #define _OUT(_field) offsetof(struct pf_osfp_ioctl, _field) 4529 static struct snl_attr_parser ap_osfp[] = { 4530 { .type = PF_OFP_IDX, .off = _OUT(fp_getnum), .cb = snl_attr_get_uint32 }, 4531 { .type = PF_OFP_OS_OS, .off = _OUT(fp_os.fp_os), .cb = snl_attr_get_uint32 }, 4532 { .type = PF_OFP_OS_ENFLAGS, .off = _OUT(fp_os.fp_enflags), .cb = snl_attr_get_uint32 }, 4533 { .type = PF_OFP_OS_CLASS, .off = _OUT(fp_os.fp_class_nm), .arg_u32 = PF_OSFP_LEN, .cb = snl_attr_copy_string}, 4534 { .type = PF_OFP_OS_VERSION, .off = _OUT(fp_os.fp_version_nm), .arg_u32 = PF_OSFP_LEN, .cb = snl_attr_copy_string }, 4535 { .type = PF_OFP_OS_SUBTYPE, .off = _OUT(fp_os.fp_subtype_nm), .arg_u32 = PF_OSFP_LEN, .cb = snl_attr_copy_string }, 4536 { .type = PF_OFP_TCPOPTS, .off = _OUT(fp_tcpopts), .cb = snl_attr_get_uint64 }, 4537 { .type = PF_OFP_WSIZE, .off = _OUT(fp_wsize), .cb = snl_attr_get_uint16 }, 4538 { .type = PF_OFP_PSIZE, .off = _OUT(fp_psize), .cb = snl_attr_get_uint16 }, 4539 { .type = PF_OFP_MSS, .off = _OUT(fp_mss), .cb = snl_attr_get_uint16 }, 4540 { .type = PF_OFP_FLAGS, .off = _OUT(fp_flags), .cb = snl_attr_get_uint16 }, 4541 { .type = PF_OFP_OPTCNT, .off = _OUT(fp_optcnt), .cb = snl_attr_get_uint8 }, 4542 { .type = PF_OFP_WSCALE, .off = _OUT(fp_wscale), .cb = snl_attr_get_uint8 }, 4543 { .type = PF_OFP_TTL, .off = _OUT(fp_ttl), .cb = snl_attr_get_uint8 }, 4544 }; 4545 #undef _OUT 4546 SNL_DECLARE_PARSER(osfp_parser, struct genlmsghdr, snl_f_p_empty, ap_osfp); 4547 4548 int 4549 pfctl_get_fingerprint(struct pfctl_handle *h, int idx, struct pf_osfp_ioctl *fp) 4550 { 4551 struct snl_writer nw; 4552 struct snl_errmsg_data e = {}; 4553 struct nlmsghdr *hdr; 4554 uint32_t seq_id; 4555 4556 snl_init_writer(&h->ss, &nw); 4557 hdr = snl_create_genl_msg_request(&nw, h->family_id, 4558 PFNL_CMD_OSFP_GET); 4559 4560 snl_add_msg_attr_u32(&nw, PF_OFP_IDX, idx); 4561 4562 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4563 e. error = ENXIO; 4564 goto out; 4565 } 4566 4567 seq_id = hdr->nlmsg_seq; 4568 4569 if (! snl_send_message(&h->ss, hdr)) { 4570 e.error = ENXIO; 4571 goto out; 4572 } 4573 4574 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4575 if (! snl_parse_nlmsg(&h->ss, hdr, &osfp_parser, fp)) 4576 continue; 4577 } 4578 4579 out: 4580 snl_clear_lb(&h->ss); 4581 return (e.error); 4582 } 4583 4584 int 4585 pfctl_add_fingerprint(struct pfctl_handle *h, struct pf_osfp_ioctl *fp) 4586 { 4587 struct snl_writer nw; 4588 struct snl_errmsg_data e = {}; 4589 struct nlmsghdr *hdr; 4590 uint32_t seq_id; 4591 4592 snl_init_writer(&h->ss, &nw); 4593 hdr = snl_create_genl_msg_request(&nw, h->family_id, 4594 PFNL_CMD_OSFP_ADD); 4595 4596 snl_add_msg_attr_u32(&nw, PF_OFP_OS_OS, fp->fp_os.fp_os); 4597 snl_add_msg_attr_u32(&nw, PF_OFP_OS_ENFLAGS, fp->fp_os.fp_enflags); 4598 snl_add_msg_attr_string(&nw, PF_OFP_OS_CLASS, fp->fp_os.fp_class_nm); 4599 snl_add_msg_attr_string(&nw, PF_OFP_OS_VERSION, fp->fp_os.fp_version_nm); 4600 snl_add_msg_attr_string(&nw, PF_OFP_OS_SUBTYPE, fp->fp_os.fp_subtype_nm); 4601 snl_add_msg_attr_u64(&nw, PF_OFP_TCPOPTS, fp->fp_tcpopts); 4602 snl_add_msg_attr_u16(&nw, PF_OFP_WSIZE, fp->fp_wsize); 4603 snl_add_msg_attr_u16(&nw, PF_OFP_PSIZE, fp->fp_psize); 4604 snl_add_msg_attr_u16(&nw, PF_OFP_MSS, fp->fp_mss); 4605 snl_add_msg_attr_u16(&nw, PF_OFP_FLAGS, fp->fp_flags); 4606 snl_add_msg_attr_u8(&nw, PF_OFP_OPTCNT, fp->fp_optcnt); 4607 snl_add_msg_attr_u8(&nw, PF_OFP_WSCALE, fp->fp_wscale); 4608 snl_add_msg_attr_u8(&nw, PF_OFP_TTL, fp->fp_ttl); 4609 4610 if ((hdr = snl_finalize_msg(&nw)) == NULL) { 4611 e. error = ENXIO; 4612 goto out; 4613 } 4614 4615 seq_id = hdr->nlmsg_seq; 4616 4617 if (! snl_send_message(&h->ss, hdr)) { 4618 e.error = ENXIO; 4619 goto out; 4620 } 4621 4622 while ((hdr = snl_read_reply_multi(&h->ss, seq_id, &e)) != NULL) { 4623 } 4624 4625 out: 4626 snl_clear_lb(&h->ss); 4627 return (e.error); 4628 } 4629 4630 static const struct snl_hdr_parser *all_parsers[] = { 4631 &begin_addrs_parser, 4632 &clear_states_parser, 4633 &clr_addrs_parser, 4634 &creator_parser, 4635 &get_addr_parser, 4636 &get_addrs_parser, 4637 &get_limit_parser, 4638 &get_timeout_parser, 4639 &getrule_parser, 4640 &getrules_parser, 4641 &getstatus_parser, 4642 &nadd_parser, 4643 &natlook_parser, 4644 &ndel_parser, 4645 &ruleset_parser, 4646 &skey_parser, 4647 &source_parser, 4648 &sourcelim_parser, 4649 &speer_parser, 4650 &srcnode_parser, 4651 &state_parser, 4652 &statelim_parser, 4653 &table_add_addr_parser, 4654 &table_astats_parser, 4655 &table_del_addr_parser, 4656 &table_get_addr_parser, 4657 &table_set_addr_parser, 4658 &tstats_clr_parser, 4659 &tstats_parser, 4660 }; 4661 4662 static void 4663 _pfctl_verify_parsers(void) 4664 { 4665 SNL_VERIFY_PARSERS(all_parsers); 4666 } 4667