1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2023 Alexander V. Chernikov <melifaro@FreeBSD.org> 5 * Copyright (c) 2023 Rubicon Communications, LLC (Netgate) 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 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 #include <sys/cdefs.h> 30 #include "opt_inet.h" 31 #include "opt_inet6.h" 32 33 #include <sys/param.h> 34 #include <sys/malloc.h> 35 #include <sys/mbuf.h> 36 #include <sys/priv.h> 37 #include <sys/socket.h> 38 #include <sys/ucred.h> 39 40 #include <net/pfvar.h> 41 42 #include <netlink/netlink.h> 43 #include <netlink/netlink_ctl.h> 44 #include <netlink/netlink_generic.h> 45 #include <netlink/netlink_message_writer.h> 46 47 #include <netpfil/pf/pf_nl.h> 48 49 #define DEBUG_MOD_NAME nl_pf 50 #define DEBUG_MAX_LEVEL LOG_DEBUG3 51 #include <netlink/netlink_debug.h> 52 _DECLARE_DEBUG(LOG_DEBUG); 53 54 struct nl_parsed_state { 55 uint8_t version; 56 uint32_t id; 57 uint32_t creatorid; 58 char ifname[IFNAMSIZ]; 59 uint16_t proto; 60 sa_family_t af; 61 struct pf_addr addr; 62 struct pf_addr mask; 63 }; 64 65 #define _IN(_field) offsetof(struct genlmsghdr, _field) 66 #define _OUT(_field) offsetof(struct nl_parsed_state, _field) 67 static const struct nlattr_parser nla_p_state[] = { 68 { .type = PF_ST_ID, .off = _OUT(id), .cb = nlattr_get_uint32 }, 69 { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = nlattr_get_uint32 }, 70 { .type = PF_ST_IFNAME, .arg = (const void *)IFNAMSIZ, .off = _OUT(ifname), .cb = nlattr_get_chara }, 71 { .type = PF_ST_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 72 { .type = PF_ST_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint16 }, 73 { .type = PF_ST_FILTER_ADDR, .off = _OUT(addr), .cb = nlattr_get_in6_addr }, 74 { .type = PF_ST_FILTER_MASK, .off = _OUT(mask), .cb = nlattr_get_in6_addr }, 75 }; 76 static const struct nlfield_parser nlf_p_generic[] = { 77 { .off_in = _IN(version), .off_out = _OUT(version), .cb = nlf_get_u8 }, 78 }; 79 #undef _IN 80 #undef _OUT 81 NL_DECLARE_PARSER(state_parser, struct genlmsghdr, nlf_p_generic, nla_p_state); 82 83 static void 84 dump_addr(struct nl_writer *nw, int attr, const struct pf_addr *addr, int af) 85 { 86 switch (af) { 87 case AF_INET: 88 nlattr_add(nw, attr, 4, &addr->v4); 89 break; 90 case AF_INET6: 91 nlattr_add(nw, attr, 16, &addr->v6); 92 break; 93 }; 94 } 95 96 static bool 97 dump_state_peer(struct nl_writer *nw, int attr, const struct pf_state_peer *peer) 98 { 99 int off = nlattr_add_nested(nw, attr); 100 if (off == 0) 101 return (false); 102 103 nlattr_add_u32(nw, PF_STP_SEQLO, peer->seqlo); 104 nlattr_add_u32(nw, PF_STP_SEQHI, peer->seqhi); 105 nlattr_add_u32(nw, PF_STP_SEQDIFF, peer->seqdiff); 106 nlattr_add_u16(nw, PF_STP_MAX_WIN, peer->max_win); 107 nlattr_add_u16(nw, PF_STP_MSS, peer->mss); 108 nlattr_add_u8(nw, PF_STP_STATE, peer->state); 109 nlattr_add_u8(nw, PF_STP_WSCALE, peer->wscale); 110 111 if (peer->scrub != NULL) { 112 struct pf_state_scrub *sc = peer->scrub; 113 uint16_t pfss_flags = sc->pfss_flags & PFSS_TIMESTAMP; 114 115 nlattr_add_u16(nw, PF_STP_PFSS_FLAGS, pfss_flags); 116 nlattr_add_u32(nw, PF_STP_PFSS_TS_MOD, sc->pfss_ts_mod); 117 nlattr_add_u8(nw, PF_STP_PFSS_TTL, sc->pfss_ttl); 118 nlattr_add_u8(nw, PF_STP_SCRUB_FLAG, PFSYNC_SCRUB_FLAG_VALID); 119 } 120 nlattr_set_len(nw, off); 121 122 return (true); 123 } 124 125 static bool 126 dump_state_key(struct nl_writer *nw, int attr, const struct pf_state_key *key) 127 { 128 int off = nlattr_add_nested(nw, attr); 129 if (off == 0) 130 return (false); 131 132 dump_addr(nw, PF_STK_ADDR0, &key->addr[0], key->af); 133 dump_addr(nw, PF_STK_ADDR1, &key->addr[1], key->af); 134 nlattr_add_u16(nw, PF_STK_PORT0, key->port[0]); 135 nlattr_add_u16(nw, PF_STK_PORT1, key->port[1]); 136 137 nlattr_set_len(nw, off); 138 139 return (true); 140 } 141 142 static int 143 dump_state(struct nlpcb *nlp, const struct nlmsghdr *hdr, struct pf_kstate *s, 144 struct nl_pstate *npt) 145 { 146 struct nl_writer *nw = npt->nw; 147 int error = 0; 148 int af; 149 struct pf_state_key *key; 150 151 PF_STATE_LOCK_ASSERT(s); 152 153 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 154 goto enomem; 155 156 struct genlmsghdr *ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 157 ghdr_new->cmd = PFNL_CMD_GETSTATES; 158 ghdr_new->version = 0; 159 ghdr_new->reserved = 0; 160 161 nlattr_add_u64(nw, PF_ST_VERSION, PF_STATE_VERSION); 162 163 key = s->key[PF_SK_WIRE]; 164 if (!dump_state_key(nw, PF_ST_KEY_WIRE, key)) 165 goto enomem; 166 key = s->key[PF_SK_STACK]; 167 if (!dump_state_key(nw, PF_ST_KEY_STACK, key)) 168 goto enomem; 169 170 af = s->key[PF_SK_WIRE]->af; 171 nlattr_add_u8(nw, PF_ST_PROTO, s->key[PF_SK_WIRE]->proto); 172 nlattr_add_u8(nw, PF_ST_AF, af); 173 174 nlattr_add_string(nw, PF_ST_IFNAME, s->kif->pfik_name); 175 nlattr_add_string(nw, PF_ST_ORIG_IFNAME, s->orig_kif->pfik_name); 176 dump_addr(nw, PF_ST_RT_ADDR, &s->act.rt_addr, af); 177 nlattr_add_u32(nw, PF_ST_CREATION, time_uptime - (s->creation / 1000)); 178 uint32_t expire = pf_state_expires(s); 179 if (expire > time_uptime) 180 expire = expire - time_uptime; 181 nlattr_add_u32(nw, PF_ST_EXPIRE, expire); 182 nlattr_add_u8(nw, PF_ST_DIRECTION, s->direction); 183 nlattr_add_u8(nw, PF_ST_LOG, s->act.log); 184 nlattr_add_u8(nw, PF_ST_TIMEOUT, s->timeout); 185 nlattr_add_u16(nw, PF_ST_STATE_FLAGS, s->state_flags); 186 uint8_t sync_flags = 0; 187 if (s->src_node) 188 sync_flags |= PFSYNC_FLAG_SRCNODE; 189 if (s->nat_src_node) 190 sync_flags |= PFSYNC_FLAG_NATSRCNODE; 191 nlattr_add_u8(nw, PF_ST_SYNC_FLAGS, sync_flags); 192 nlattr_add_u64(nw, PF_ST_ID, s->id); 193 nlattr_add_u32(nw, PF_ST_CREATORID, htonl(s->creatorid)); 194 195 nlattr_add_u32(nw, PF_ST_RULE, s->rule ? s->rule->nr : -1); 196 nlattr_add_u32(nw, PF_ST_ANCHOR, s->anchor ? s->anchor->nr : -1); 197 nlattr_add_u32(nw, PF_ST_NAT_RULE, s->nat_rule ? s->nat_rule->nr : -1); 198 199 nlattr_add_u64(nw, PF_ST_PACKETS0, s->packets[0]); 200 nlattr_add_u64(nw, PF_ST_PACKETS1, s->packets[1]); 201 nlattr_add_u64(nw, PF_ST_BYTES0, s->bytes[0]); 202 nlattr_add_u64(nw, PF_ST_BYTES1, s->bytes[1]); 203 nlattr_add_u32(nw, PF_ST_RTABLEID, s->act.rtableid); 204 nlattr_add_u8(nw, PF_ST_MIN_TTL, s->act.min_ttl); 205 nlattr_add_u16(nw, PF_ST_MAX_MSS, s->act.max_mss); 206 nlattr_add_u16(nw, PF_ST_DNPIPE, s->act.dnpipe); 207 nlattr_add_u16(nw, PF_ST_DNRPIPE, s->act.dnrpipe); 208 nlattr_add_u8(nw, PF_ST_RT, s->act.rt); 209 if (s->act.rt_kif != NULL) 210 nlattr_add_string(nw, PF_ST_RT_IFNAME, s->act.rt_kif->pfik_name); 211 212 if (!dump_state_peer(nw, PF_ST_PEER_SRC, &s->src)) 213 goto enomem; 214 if (!dump_state_peer(nw, PF_ST_PEER_DST, &s->dst)) 215 goto enomem; 216 217 if (nlmsg_end(nw)) 218 return (0); 219 220 enomem: 221 error = ENOMEM; 222 nlmsg_abort(nw); 223 return (error); 224 } 225 226 static int 227 handle_dumpstates(struct nlpcb *nlp, struct nl_parsed_state *attrs, 228 struct nlmsghdr *hdr, struct nl_pstate *npt) 229 { 230 int error = 0; 231 232 hdr->nlmsg_flags |= NLM_F_MULTI; 233 234 for (int i = 0; i <= V_pf_hashmask; i++) { 235 struct pf_idhash *ih = &V_pf_idhash[i]; 236 struct pf_kstate *s; 237 238 if (LIST_EMPTY(&ih->states)) 239 continue; 240 241 PF_HASHROW_LOCK(ih); 242 LIST_FOREACH(s, &ih->states, entry) { 243 sa_family_t af = s->key[PF_SK_WIRE]->af; 244 245 if (s->timeout == PFTM_UNLINKED) 246 continue; 247 248 /* Filter */ 249 if (attrs->creatorid != 0 && s->creatorid != attrs->creatorid) 250 continue; 251 if (attrs->ifname[0] != 0 && 252 strncmp(attrs->ifname, s->kif->pfik_name, IFNAMSIZ) != 0) 253 continue; 254 if (attrs->proto != 0 && s->key[PF_SK_WIRE]->proto != attrs->proto) 255 continue; 256 if (attrs->af != 0 && af != attrs->af) 257 continue; 258 if (pf_match_addr(1, &s->key[PF_SK_WIRE]->addr[0], 259 &attrs->mask, &attrs->addr, af) && 260 pf_match_addr(1, &s->key[PF_SK_WIRE]->addr[1], 261 &attrs->mask, &attrs->addr, af) && 262 pf_match_addr(1, &s->key[PF_SK_STACK]->addr[0], 263 &attrs->mask, &attrs->addr, af) && 264 pf_match_addr(1, &s->key[PF_SK_STACK]->addr[1], 265 &attrs->mask, &attrs->addr, af)) 266 continue; 267 268 error = dump_state(nlp, hdr, s, npt); 269 if (error != 0) 270 break; 271 } 272 PF_HASHROW_UNLOCK(ih); 273 } 274 275 if (!nlmsg_end_dump(npt->nw, error, hdr)) { 276 NL_LOG(LOG_DEBUG, "Unable to finalize the dump"); 277 return (ENOMEM); 278 } 279 280 return (error); 281 } 282 283 static int 284 handle_getstate(struct nlpcb *nlp, struct nl_parsed_state *attrs, 285 struct nlmsghdr *hdr, struct nl_pstate *npt) 286 { 287 struct pf_kstate *s; 288 int ret; 289 290 s = pf_find_state_byid(attrs->id, attrs->creatorid); 291 if (s == NULL) 292 return (ENOENT); 293 ret = dump_state(nlp, hdr, s, npt); 294 PF_STATE_UNLOCK(s); 295 296 return (ret); 297 } 298 299 static int 300 dump_creatorid(struct nlpcb *nlp, const struct nlmsghdr *hdr, uint32_t creator, 301 struct nl_pstate *npt) 302 { 303 struct nl_writer *nw = npt->nw; 304 305 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 306 goto enomem; 307 308 struct genlmsghdr *ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 309 ghdr_new->cmd = PFNL_CMD_GETCREATORS; 310 ghdr_new->version = 0; 311 ghdr_new->reserved = 0; 312 313 nlattr_add_u32(nw, PF_ST_CREATORID, htonl(creator)); 314 315 if (nlmsg_end(nw)) 316 return (0); 317 318 enomem: 319 nlmsg_abort(nw); 320 return (ENOMEM); 321 } 322 323 static int 324 pf_handle_getstates(struct nlmsghdr *hdr, struct nl_pstate *npt) 325 { 326 int error; 327 328 struct nl_parsed_state attrs = {}; 329 error = nl_parse_nlmsg(hdr, &state_parser, npt, &attrs); 330 if (error != 0) 331 return (error); 332 333 if (attrs.id != 0) 334 error = handle_getstate(npt->nlp, &attrs, hdr, npt); 335 else 336 error = handle_dumpstates(npt->nlp, &attrs, hdr, npt); 337 338 return (error); 339 } 340 341 static int 342 pf_handle_getcreators(struct nlmsghdr *hdr, struct nl_pstate *npt) 343 { 344 uint32_t creators[16]; 345 int error = 0; 346 347 bzero(creators, sizeof(creators)); 348 349 for (int i = 0; i < V_pf_hashmask; i++) { 350 struct pf_idhash *ih = &V_pf_idhash[i]; 351 struct pf_kstate *s; 352 353 if (LIST_EMPTY(&ih->states)) 354 continue; 355 356 PF_HASHROW_LOCK(ih); 357 LIST_FOREACH(s, &ih->states, entry) { 358 int j; 359 if (s->timeout == PFTM_UNLINKED) 360 continue; 361 362 for (j = 0; j < nitems(creators); j++) { 363 if (creators[j] == s->creatorid) 364 break; 365 if (creators[j] == 0) { 366 creators[j] = s->creatorid; 367 break; 368 } 369 } 370 if (j == nitems(creators)) 371 printf("Warning: too many creators!\n"); 372 } 373 PF_HASHROW_UNLOCK(ih); 374 } 375 376 hdr->nlmsg_flags |= NLM_F_MULTI; 377 for (int i = 0; i < nitems(creators); i++) { 378 if (creators[i] == 0) 379 break; 380 error = dump_creatorid(npt->nlp, hdr, creators[i], npt); 381 } 382 383 if (!nlmsg_end_dump(npt->nw, error, hdr)) { 384 NL_LOG(LOG_DEBUG, "Unable to finalize the dump"); 385 return (ENOMEM); 386 } 387 388 return (error); 389 } 390 391 static int 392 pf_handle_start(struct nlmsghdr *hdr __unused, struct nl_pstate *npt __unused) 393 { 394 return (pf_start()); 395 } 396 397 static int 398 pf_handle_stop(struct nlmsghdr *hdr __unused, struct nl_pstate *npt __unused) 399 { 400 return (pf_stop()); 401 } 402 403 #define _OUT(_field) offsetof(struct pf_addr_wrap, _field) 404 static const struct nlattr_parser nla_p_addr_wrap[] = { 405 { .type = PF_AT_ADDR, .off = _OUT(v.a.addr), .cb = nlattr_get_in6_addr }, 406 { .type = PF_AT_MASK, .off = _OUT(v.a.mask), .cb = nlattr_get_in6_addr }, 407 { .type = PF_AT_IFNAME, .off = _OUT(v.ifname), .arg = (void *)IFNAMSIZ,.cb = nlattr_get_chara }, 408 { .type = PF_AT_TABLENAME, .off = _OUT(v.tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara }, 409 { .type = PF_AT_TYPE, .off = _OUT(type), .cb = nlattr_get_uint8 }, 410 { .type = PF_AT_IFLAGS, .off = _OUT(iflags), .cb = nlattr_get_uint8 }, 411 }; 412 NL_DECLARE_ATTR_PARSER(addr_wrap_parser, nla_p_addr_wrap); 413 #undef _OUT 414 415 static bool 416 nlattr_add_addr_wrap(struct nl_writer *nw, int attrtype, struct pf_addr_wrap *a) 417 { 418 int off = nlattr_add_nested(nw, attrtype); 419 420 nlattr_add_in6_addr(nw, PF_AT_ADDR, &a->v.a.addr.v6); 421 nlattr_add_in6_addr(nw, PF_AT_MASK, &a->v.a.mask.v6); 422 nlattr_add_u8(nw, PF_AT_TYPE, a->type); 423 nlattr_add_u8(nw, PF_AT_IFLAGS, a->iflags); 424 425 if (a->type == PF_ADDR_DYNIFTL) { 426 nlattr_add_string(nw, PF_AT_IFNAME, a->v.ifname); 427 nlattr_add_u32(nw, PF_AT_DYNCNT, a->p.dyncnt); 428 } else if (a->type == PF_ADDR_TABLE) { 429 nlattr_add_string(nw, PF_AT_TABLENAME, a->v.tblname); 430 nlattr_add_u32(nw, PF_AT_TBLCNT, a->p.tblcnt); 431 } 432 433 nlattr_set_len(nw, off); 434 435 return (true); 436 } 437 438 #define _OUT(_field) offsetof(struct pf_rule_addr, _field) 439 static const struct nlattr_parser nla_p_ruleaddr[] = { 440 { .type = PF_RAT_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = nlattr_get_nested }, 441 { .type = PF_RAT_SRC_PORT, .off = _OUT(port[0]), .cb = nlattr_get_uint16 }, 442 { .type = PF_RAT_DST_PORT, .off = _OUT(port[1]), .cb = nlattr_get_uint16 }, 443 { .type = PF_RAT_NEG, .off = _OUT(neg), .cb = nlattr_get_uint8 }, 444 { .type = PF_RAT_OP, .off = _OUT(port_op), .cb = nlattr_get_uint8 }, 445 }; 446 NL_DECLARE_ATTR_PARSER(rule_addr_parser, nla_p_ruleaddr); 447 #undef _OUT 448 449 static bool 450 nlattr_add_rule_addr(struct nl_writer *nw, int attrtype, struct pf_rule_addr *r) 451 { 452 struct pf_addr_wrap aw = {0}; 453 int off = nlattr_add_nested(nw, attrtype); 454 455 bcopy(&(r->addr), &aw, sizeof(struct pf_addr_wrap)); 456 pf_addr_copyout(&aw); 457 458 nlattr_add_addr_wrap(nw, PF_RAT_ADDR, &aw); 459 nlattr_add_u16(nw, PF_RAT_SRC_PORT, r->port[0]); 460 nlattr_add_u16(nw, PF_RAT_DST_PORT, r->port[1]); 461 nlattr_add_u8(nw, PF_RAT_NEG, r->neg); 462 nlattr_add_u8(nw, PF_RAT_OP, r->port_op); 463 464 nlattr_set_len(nw, off); 465 466 return (true); 467 } 468 469 #define _OUT(_field) offsetof(struct pf_mape_portset, _field) 470 static const struct nlattr_parser nla_p_mape_portset[] = { 471 { .type = PF_MET_OFFSET, .off = _OUT(offset), .cb = nlattr_get_uint8 }, 472 { .type = PF_MET_PSID_LEN, .off = _OUT(psidlen), .cb = nlattr_get_uint8 }, 473 {. type = PF_MET_PSID, .off = _OUT(psid), .cb = nlattr_get_uint16 }, 474 }; 475 NL_DECLARE_ATTR_PARSER(mape_portset_parser, nla_p_mape_portset); 476 #undef _OUT 477 478 static bool 479 nlattr_add_mape_portset(struct nl_writer *nw, int attrtype, const struct pf_mape_portset *m) 480 { 481 int off = nlattr_add_nested(nw, attrtype); 482 483 nlattr_add_u8(nw, PF_MET_OFFSET, m->offset); 484 nlattr_add_u8(nw, PF_MET_PSID_LEN, m->psidlen); 485 nlattr_add_u16(nw, PF_MET_PSID, m->psid); 486 487 nlattr_set_len(nw, off); 488 489 return (true); 490 } 491 492 struct nl_parsed_labels 493 { 494 char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 495 uint32_t i; 496 }; 497 498 static int 499 nlattr_get_pf_rule_labels(struct nlattr *nla, struct nl_pstate *npt, 500 const void *arg, void *target) 501 { 502 struct nl_parsed_labels *l = (struct nl_parsed_labels *)target; 503 int ret; 504 505 if (l->i >= PF_RULE_MAX_LABEL_COUNT) 506 return (E2BIG); 507 508 ret = nlattr_get_chara(nla, npt, (void *)PF_RULE_LABEL_SIZE, 509 l->labels[l->i]); 510 if (ret == 0) 511 l->i++; 512 513 return (ret); 514 } 515 516 #define _OUT(_field) offsetof(struct nl_parsed_labels, _field) 517 static const struct nlattr_parser nla_p_labels[] = { 518 { .type = PF_LT_LABEL, .off = 0, .cb = nlattr_get_pf_rule_labels }, 519 }; 520 NL_DECLARE_ATTR_PARSER(rule_labels_parser, nla_p_labels); 521 #undef _OUT 522 523 static int 524 nlattr_get_nested_pf_rule_labels(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target) 525 { 526 struct nl_parsed_labels parsed_labels = { }; 527 int error; 528 529 /* Assumes target points to the beginning of the structure */ 530 error = nl_parse_header(NLA_DATA(nla), NLA_DATA_LEN(nla), &rule_labels_parser, npt, &parsed_labels); 531 if (error != 0) 532 return (error); 533 534 memcpy(target, parsed_labels.labels, sizeof(parsed_labels.labels)); 535 536 return (0); 537 } 538 539 static bool 540 nlattr_add_labels(struct nl_writer *nw, int attrtype, const struct pf_krule *r) 541 { 542 int off = nlattr_add_nested(nw, attrtype); 543 int i = 0; 544 545 while (r->label[i][0] != 0 546 && i < PF_RULE_MAX_LABEL_COUNT) { 547 nlattr_add_string(nw, PF_LT_LABEL, r->label[i]); 548 i++; 549 } 550 551 nlattr_set_len(nw, off); 552 553 return (true); 554 } 555 556 #define _OUT(_field) offsetof(struct pf_kpool, _field) 557 static const struct nlattr_parser nla_p_pool[] = { 558 { .type = PF_PT_KEY, .off = _OUT(key), .arg = (void *)sizeof(struct pf_poolhashkey), .cb = nlattr_get_bytes }, 559 { .type = PF_PT_COUNTER, .off = _OUT(counter), .cb = nlattr_get_in6_addr }, 560 { .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = nlattr_get_uint32 }, 561 { .type = PF_PT_PROXY_SRC_PORT, .off = _OUT(proxy_port[0]), .cb = nlattr_get_uint16 }, 562 { .type = PF_PT_PROXY_DST_PORT, .off = _OUT(proxy_port[1]), .cb = nlattr_get_uint16 }, 563 { .type = PF_PT_OPTS, .off = _OUT(opts), .cb = nlattr_get_uint8 }, 564 { .type = PF_PT_MAPE, .off = _OUT(mape), .arg = &mape_portset_parser, .cb = nlattr_get_nested }, 565 }; 566 NL_DECLARE_ATTR_PARSER(pool_parser, nla_p_pool); 567 #undef _OUT 568 569 static bool 570 nlattr_add_pool(struct nl_writer *nw, int attrtype, const struct pf_kpool *pool) 571 { 572 int off = nlattr_add_nested(nw, attrtype); 573 574 nlattr_add(nw, PF_PT_KEY, sizeof(struct pf_poolhashkey), &pool->key); 575 nlattr_add_in6_addr(nw, PF_PT_COUNTER, (const struct in6_addr *)&pool->counter); 576 nlattr_add_u32(nw, PF_PT_TBLIDX, pool->tblidx); 577 nlattr_add_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]); 578 nlattr_add_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]); 579 nlattr_add_u8(nw, PF_PT_OPTS, pool->opts); 580 nlattr_add_mape_portset(nw, PF_PT_MAPE, &pool->mape); 581 582 nlattr_set_len(nw, off); 583 584 return (true); 585 } 586 587 #define _OUT(_field) offsetof(struct pf_rule_uid, _field) 588 static const struct nlattr_parser nla_p_rule_uid[] = { 589 { .type = PF_RUT_UID_LOW, .off = _OUT(uid[0]), .cb = nlattr_get_uint32 }, 590 { .type = PF_RUT_UID_HIGH, .off = _OUT(uid[1]), .cb = nlattr_get_uint32 }, 591 { .type = PF_RUT_OP, .off = _OUT(op), .cb = nlattr_get_uint8 }, 592 }; 593 NL_DECLARE_ATTR_PARSER(rule_uid_parser, nla_p_rule_uid); 594 #undef _OUT 595 596 static bool 597 nlattr_add_rule_uid(struct nl_writer *nw, int attrtype, const struct pf_rule_uid *u) 598 { 599 int off = nlattr_add_nested(nw, attrtype); 600 601 nlattr_add_u32(nw, PF_RUT_UID_LOW, u->uid[0]); 602 nlattr_add_u32(nw, PF_RUT_UID_HIGH, u->uid[1]); 603 nlattr_add_u8(nw, PF_RUT_OP, u->op); 604 605 nlattr_set_len(nw, off); 606 607 return (true); 608 } 609 610 struct nl_parsed_timeouts 611 { 612 uint32_t timeouts[PFTM_MAX]; 613 uint32_t i; 614 }; 615 616 static int 617 nlattr_get_pf_timeout(struct nlattr *nla, struct nl_pstate *npt, 618 const void *arg, void *target) 619 { 620 struct nl_parsed_timeouts *t = (struct nl_parsed_timeouts *)target; 621 int ret; 622 623 if (t->i >= PFTM_MAX) 624 return (E2BIG); 625 626 ret = nlattr_get_uint32(nla, npt, NULL, &t->timeouts[t->i]); 627 if (ret == 0) 628 t->i++; 629 630 return (ret); 631 } 632 633 #define _OUT(_field) offsetof(struct nl_parsed_timeout, _field) 634 static const struct nlattr_parser nla_p_timeouts[] = { 635 { .type = PF_TT_TIMEOUT, .off = 0, .cb = nlattr_get_pf_timeout }, 636 }; 637 NL_DECLARE_ATTR_PARSER(timeout_parser, nla_p_timeouts); 638 #undef _OUT 639 640 static int 641 nlattr_get_nested_timeouts(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target) 642 { 643 struct nl_parsed_timeouts parsed_timeouts = { }; 644 int error; 645 646 /* Assumes target points to the beginning of the structure */ 647 error = nl_parse_header(NLA_DATA(nla), NLA_DATA_LEN(nla), &timeout_parser, npt, &parsed_timeouts); 648 if (error != 0) 649 return (error); 650 651 memcpy(target, parsed_timeouts.timeouts, sizeof(parsed_timeouts.timeouts)); 652 653 return (0); 654 } 655 656 static bool 657 nlattr_add_timeout(struct nl_writer *nw, int attrtype, uint32_t *timeout) 658 { 659 int off = nlattr_add_nested(nw, attrtype); 660 661 for (int i = 0; i < PFTM_MAX; i++) 662 nlattr_add_u32(nw, PF_RT_TIMEOUT, timeout[i]); 663 664 nlattr_set_len(nw, off); 665 666 return (true); 667 } 668 669 #define _OUT(_field) offsetof(struct pf_krule, _field) 670 static const struct nlattr_parser nla_p_rule[] = { 671 { .type = PF_RT_SRC, .off = _OUT(src), .arg = &rule_addr_parser,.cb = nlattr_get_nested }, 672 { .type = PF_RT_DST, .off = _OUT(dst), .arg = &rule_addr_parser,.cb = nlattr_get_nested }, 673 { .type = PF_RT_RIDENTIFIER, .off = _OUT(ridentifier), .cb = nlattr_get_uint32 }, 674 { .type = PF_RT_LABELS, .off = _OUT(label), .arg = &rule_labels_parser,.cb = nlattr_get_nested_pf_rule_labels }, 675 { .type = PF_RT_IFNAME, .off = _OUT(ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 676 { .type = PF_RT_QNAME, .off = _OUT(qname), .arg = (void *)PF_QNAME_SIZE, .cb = nlattr_get_chara }, 677 { .type = PF_RT_PQNAME, .off = _OUT(pqname), .arg = (void *)PF_QNAME_SIZE, .cb = nlattr_get_chara }, 678 { .type = PF_RT_TAGNAME, .off = _OUT(tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = nlattr_get_chara }, 679 { .type = PF_RT_MATCH_TAGNAME, .off = _OUT(match_tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = nlattr_get_chara }, 680 { .type = PF_RT_OVERLOAD_TBLNAME, .off = _OUT(overload_tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara }, 681 { .type = PF_RT_RPOOL, .off = _OUT(rpool), .arg = &pool_parser, .cb = nlattr_get_nested }, 682 { .type = PF_RT_OS_FINGERPRINT, .off = _OUT(os_fingerprint), .cb = nlattr_get_uint32 }, 683 { .type = PF_RT_RTABLEID, .off = _OUT(rtableid), .cb = nlattr_get_uint32 }, 684 { .type = PF_RT_TIMEOUT, .off = _OUT(timeout), .arg = &timeout_parser, .cb = nlattr_get_nested_timeouts }, 685 { .type = PF_RT_MAX_STATES, .off = _OUT(max_states), .cb = nlattr_get_uint32 }, 686 { .type = PF_RT_MAX_SRC_NODES, .off = _OUT(max_src_nodes), .cb = nlattr_get_uint32 }, 687 { .type = PF_RT_MAX_SRC_STATES, .off = _OUT(max_src_states), .cb = nlattr_get_uint32 }, 688 { .type = PF_RT_MAX_SRC_CONN_RATE_LIMIT, .off = _OUT(max_src_conn_rate.limit), .cb = nlattr_get_uint32 }, 689 { .type = PF_RT_MAX_SRC_CONN_RATE_SECS, .off = _OUT(max_src_conn_rate.seconds), .cb = nlattr_get_uint32 }, 690 { .type = PF_RT_DNPIPE, .off = _OUT(dnpipe), .cb = nlattr_get_uint16 }, 691 { .type = PF_RT_DNRPIPE, .off = _OUT(dnrpipe), .cb = nlattr_get_uint16 }, 692 { .type = PF_RT_DNFLAGS, .off = _OUT(free_flags), .cb = nlattr_get_uint32 }, 693 { .type = PF_RT_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 694 { .type = PF_RT_PROB, .off = _OUT(prob), .cb = nlattr_get_uint32 }, 695 { .type = PF_RT_CUID, .off = _OUT(cuid), .cb = nlattr_get_uint32 }, 696 {. type = PF_RT_CPID, .off = _OUT(cpid), .cb = nlattr_get_uint32 }, 697 { .type = PF_RT_RETURN_ICMP, .off = _OUT(return_icmp), .cb = nlattr_get_uint16 }, 698 { .type = PF_RT_RETURN_ICMP6, .off = _OUT(return_icmp6), .cb = nlattr_get_uint16 }, 699 { .type = PF_RT_MAX_MSS, .off = _OUT(max_mss), .cb = nlattr_get_uint16 }, 700 { .type = PF_RT_SCRUB_FLAGS, .off = _OUT(scrub_flags), .cb = nlattr_get_uint16 }, 701 { .type = PF_RT_UID, .off = _OUT(uid), .arg = &rule_uid_parser, .cb = nlattr_get_nested }, 702 { .type = PF_RT_GID, .off = _OUT(gid), .arg = &rule_uid_parser, .cb = nlattr_get_nested }, 703 { .type = PF_RT_RULE_FLAG, .off = _OUT(rule_flag), .cb = nlattr_get_uint32 }, 704 { .type = PF_RT_ACTION, .off = _OUT(action), .cb = nlattr_get_uint8 }, 705 { .type = PF_RT_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 }, 706 { .type = PF_RT_LOG, .off = _OUT(log), .cb = nlattr_get_uint8 }, 707 { .type = PF_RT_LOGIF, .off = _OUT(logif), .cb = nlattr_get_uint8 }, 708 { .type = PF_RT_QUICK, .off = _OUT(quick), .cb = nlattr_get_uint8 }, 709 { .type = PF_RT_IF_NOT, .off = _OUT(ifnot), .cb = nlattr_get_uint8 }, 710 { .type = PF_RT_MATCH_TAG_NOT, .off = _OUT(match_tag_not), .cb = nlattr_get_uint8 }, 711 { .type = PF_RT_NATPASS, .off = _OUT(natpass), .cb = nlattr_get_uint8 }, 712 { .type = PF_RT_KEEP_STATE, .off = _OUT(keep_state), .cb = nlattr_get_uint8 }, 713 { .type = PF_RT_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 714 { .type = PF_RT_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 }, 715 { .type = PF_RT_TYPE, .off = _OUT(type), .cb = nlattr_get_uint8 }, 716 { .type = PF_RT_CODE, .off = _OUT(code), .cb = nlattr_get_uint8 }, 717 { .type = PF_RT_FLAGS, .off = _OUT(flags), .cb = nlattr_get_uint8 }, 718 { .type = PF_RT_FLAGSET, .off = _OUT(flagset), .cb = nlattr_get_uint8 }, 719 { .type = PF_RT_MIN_TTL, .off = _OUT(min_ttl), .cb = nlattr_get_uint8 }, 720 { .type = PF_RT_ALLOW_OPTS, .off = _OUT(allow_opts), .cb = nlattr_get_uint8 }, 721 { .type = PF_RT_RT, .off = _OUT(rt), .cb = nlattr_get_uint8 }, 722 { .type = PF_RT_RETURN_TTL, .off = _OUT(return_ttl), .cb = nlattr_get_uint8 }, 723 { .type = PF_RT_TOS, .off = _OUT(tos), .cb = nlattr_get_uint8 }, 724 { .type = PF_RT_SET_TOS, .off = _OUT(set_tos), .cb = nlattr_get_uint8 }, 725 { .type = PF_RT_ANCHOR_RELATIVE, .off = _OUT(anchor_relative), .cb = nlattr_get_uint8 }, 726 { .type = PF_RT_ANCHOR_WILDCARD, .off = _OUT(anchor_wildcard), .cb = nlattr_get_uint8 }, 727 { .type = PF_RT_FLUSH, .off = _OUT(flush), .cb = nlattr_get_uint8 }, 728 { .type = PF_RT_PRIO, .off = _OUT(prio), .cb = nlattr_get_uint8 }, 729 { .type = PF_RT_SET_PRIO, .off = _OUT(set_prio[0]), .cb = nlattr_get_uint8 }, 730 { .type = PF_RT_SET_PRIO_REPLY, .off = _OUT(set_prio[1]), .cb = nlattr_get_uint8 }, 731 { .type = PF_RT_DIVERT_ADDRESS, .off = _OUT(divert.addr), .cb = nlattr_get_in6_addr }, 732 { .type = PF_RT_DIVERT_PORT, .off = _OUT(divert.port), .cb = nlattr_get_uint16 }, 733 { .type = PF_RT_RCV_IFNAME, .off = _OUT(rcv_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 734 { .type = PF_RT_MAX_SRC_CONN, .off = _OUT(max_src_conn), .cb = nlattr_get_uint32 }, 735 }; 736 NL_DECLARE_ATTR_PARSER(rule_parser, nla_p_rule); 737 #undef _OUT 738 struct nl_parsed_addrule { 739 struct pf_krule *rule; 740 uint32_t ticket; 741 uint32_t pool_ticket; 742 char *anchor; 743 char *anchor_call; 744 }; 745 #define _IN(_field) offsetof(struct genlmsghdr, _field) 746 #define _OUT(_field) offsetof(struct nl_parsed_addrule, _field) 747 static const struct nlattr_parser nla_p_addrule[] = { 748 { .type = PF_ART_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, 749 { .type = PF_ART_POOL_TICKET, .off = _OUT(pool_ticket), .cb = nlattr_get_uint32 }, 750 { .type = PF_ART_ANCHOR, .off = _OUT(anchor), .cb = nlattr_get_string }, 751 { .type = PF_ART_ANCHOR_CALL, .off = _OUT(anchor_call), .cb = nlattr_get_string }, 752 { .type = PF_ART_RULE, .off = _OUT(rule), .arg = &rule_parser, .cb = nlattr_get_nested_ptr } 753 }; 754 static const struct nlfield_parser nlf_p_addrule[] = { 755 }; 756 #undef _IN 757 #undef _OUT 758 NL_DECLARE_PARSER(addrule_parser, struct genlmsghdr, nlf_p_addrule, nla_p_addrule); 759 760 static int 761 pf_handle_addrule(struct nlmsghdr *hdr, struct nl_pstate *npt) 762 { 763 int error; 764 struct nl_parsed_addrule attrs = {}; 765 766 attrs.rule = pf_krule_alloc(); 767 768 error = nl_parse_nlmsg(hdr, &addrule_parser, npt, &attrs); 769 if (error != 0) { 770 pf_free_rule(attrs.rule); 771 return (error); 772 } 773 774 error = pf_ioctl_addrule(attrs.rule, attrs.ticket, attrs.pool_ticket, 775 attrs.anchor, attrs.anchor_call, nlp_get_cred(npt->nlp)->cr_uid, 776 hdr->nlmsg_pid); 777 778 return (error); 779 } 780 781 #define _IN(_field) offsetof(struct genlmsghdr, _field) 782 #define _OUT(_field) offsetof(struct pfioc_rule, _field) 783 static const struct nlattr_parser nla_p_getrules[] = { 784 { .type = PF_GR_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 785 { .type = PF_GR_ACTION, .off = _OUT(rule.action), .cb = nlattr_get_uint8 }, 786 }; 787 static const struct nlfield_parser nlf_p_getrules[] = { 788 }; 789 #undef _IN 790 #undef _OUT 791 NL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, nlf_p_getrules, nla_p_getrules); 792 793 static int 794 pf_handle_getrules(struct nlmsghdr *hdr, struct nl_pstate *npt) 795 { 796 struct pfioc_rule attrs = {}; 797 int error; 798 struct nl_writer *nw = npt->nw; 799 struct genlmsghdr *ghdr_new; 800 801 error = nl_parse_nlmsg(hdr, &getrules_parser, npt, &attrs); 802 if (error != 0) 803 return (error); 804 805 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 806 return (ENOMEM); 807 808 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 809 ghdr_new->cmd = PFNL_CMD_GETRULES; 810 ghdr_new->version = 0; 811 ghdr_new->reserved = 0; 812 813 error = pf_ioctl_getrules(&attrs); 814 if (error != 0) 815 goto out; 816 817 nlattr_add_u32(nw, PF_GR_NR, attrs.nr); 818 nlattr_add_u32(nw, PF_GR_TICKET, attrs.ticket); 819 820 if (!nlmsg_end(nw)) { 821 error = ENOMEM; 822 goto out; 823 } 824 825 return (0); 826 827 out: 828 nlmsg_abort(nw); 829 return (error); 830 } 831 832 struct nl_parsed_get_rule { 833 char anchor[MAXPATHLEN]; 834 uint8_t action; 835 uint32_t nr; 836 uint32_t ticket; 837 uint8_t clear; 838 }; 839 #define _IN(_field) offsetof(struct genlmsghdr, _field) 840 #define _OUT(_field) offsetof(struct nl_parsed_get_rule, _field) 841 static const struct nlattr_parser nla_p_getrule[] = { 842 { .type = PF_GR_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 843 { .type = PF_GR_ACTION, .off = _OUT(action), .cb = nlattr_get_uint8 }, 844 { .type = PF_GR_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 845 { .type = PF_GR_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, 846 { .type = PF_GR_CLEAR, .off = _OUT(clear), .cb = nlattr_get_uint8 }, 847 }; 848 static const struct nlfield_parser nlf_p_getrule[] = { 849 }; 850 #undef _IN 851 #undef _OUT 852 NL_DECLARE_PARSER(getrule_parser, struct genlmsghdr, nlf_p_getrule, nla_p_getrule); 853 854 static int 855 pf_handle_getrule(struct nlmsghdr *hdr, struct nl_pstate *npt) 856 { 857 char anchor_call[MAXPATHLEN]; 858 struct nl_parsed_get_rule attrs = {}; 859 struct nl_writer *nw = npt->nw; 860 struct genlmsghdr *ghdr_new; 861 struct pf_kruleset *ruleset; 862 struct pf_krule *rule; 863 int rs_num; 864 int error; 865 866 error = nl_parse_nlmsg(hdr, &getrule_parser, npt, &attrs); 867 if (error != 0) 868 return (error); 869 870 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 871 return (ENOMEM); 872 873 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 874 ghdr_new->cmd = PFNL_CMD_GETRULE; 875 ghdr_new->version = 0; 876 ghdr_new->reserved = 0; 877 878 PF_RULES_WLOCK(); 879 ruleset = pf_find_kruleset(attrs.anchor); 880 if (ruleset == NULL) { 881 PF_RULES_WUNLOCK(); 882 error = ENOENT; 883 goto out; 884 } 885 886 rs_num = pf_get_ruleset_number(attrs.action); 887 if (rs_num >= PF_RULESET_MAX) { 888 PF_RULES_WUNLOCK(); 889 error = EINVAL; 890 goto out; 891 } 892 893 if (attrs.ticket != ruleset->rules[rs_num].active.ticket) { 894 PF_RULES_WUNLOCK(); 895 error = EBUSY; 896 goto out; 897 } 898 899 rule = TAILQ_FIRST(ruleset->rules[rs_num].active.ptr); 900 while ((rule != NULL) && (rule->nr != attrs.nr)) 901 rule = TAILQ_NEXT(rule, entries); 902 if (rule == NULL) { 903 PF_RULES_WUNLOCK(); 904 error = EBUSY; 905 goto out; 906 } 907 908 nlattr_add_rule_addr(nw, PF_RT_SRC, &rule->src); 909 nlattr_add_rule_addr(nw, PF_RT_DST, &rule->dst); 910 nlattr_add_u32(nw, PF_RT_RIDENTIFIER, rule->ridentifier); 911 nlattr_add_labels(nw, PF_RT_LABELS, rule); 912 nlattr_add_string(nw, PF_RT_IFNAME, rule->ifname); 913 nlattr_add_string(nw, PF_RT_QNAME, rule->qname); 914 nlattr_add_string(nw, PF_RT_PQNAME, rule->pqname); 915 nlattr_add_string(nw, PF_RT_TAGNAME, rule->tagname); 916 nlattr_add_string(nw, PF_RT_MATCH_TAGNAME, rule->match_tagname); 917 nlattr_add_string(nw, PF_RT_OVERLOAD_TBLNAME, rule->overload_tblname); 918 nlattr_add_pool(nw, PF_RT_RPOOL, &rule->rpool); 919 nlattr_add_u32(nw, PF_RT_OS_FINGERPRINT, rule->os_fingerprint); 920 nlattr_add_u32(nw, PF_RT_RTABLEID, rule->rtableid); 921 nlattr_add_timeout(nw, PF_RT_TIMEOUT, rule->timeout); 922 nlattr_add_u32(nw, PF_RT_MAX_STATES, rule->max_states); 923 nlattr_add_u32(nw, PF_RT_MAX_SRC_NODES, rule->max_src_nodes); 924 nlattr_add_u32(nw, PF_RT_MAX_SRC_STATES, rule->max_src_states); 925 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN, rule->max_src_conn); 926 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, rule->max_src_conn_rate.limit); 927 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, rule->max_src_conn_rate.seconds); 928 929 nlattr_add_u16(nw, PF_RT_DNPIPE, rule->dnpipe); 930 nlattr_add_u16(nw, PF_RT_DNRPIPE, rule->dnrpipe); 931 nlattr_add_u32(nw, PF_RT_DNFLAGS, rule->free_flags); 932 933 nlattr_add_u32(nw, PF_RT_NR, rule->nr); 934 nlattr_add_u32(nw, PF_RT_PROB, rule->prob); 935 nlattr_add_u32(nw, PF_RT_CUID, rule->cuid); 936 nlattr_add_u32(nw, PF_RT_CPID, rule->cpid); 937 938 nlattr_add_u16(nw, PF_RT_RETURN_ICMP, rule->return_icmp); 939 nlattr_add_u16(nw, PF_RT_RETURN_ICMP6, rule->return_icmp6); 940 nlattr_add_u16(nw, PF_RT_RETURN_ICMP6, rule->return_icmp6); 941 nlattr_add_u16(nw, PF_RT_MAX_MSS, rule->max_mss); 942 nlattr_add_u16(nw, PF_RT_SCRUB_FLAGS, rule->scrub_flags); 943 944 nlattr_add_rule_uid(nw, PF_RT_UID, &rule->uid); 945 nlattr_add_rule_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&rule->gid); 946 947 nlattr_add_string(nw, PF_RT_RCV_IFNAME, rule->rcv_ifname); 948 949 nlattr_add_u32(nw, PF_RT_RULE_FLAG, rule->rule_flag); 950 nlattr_add_u8(nw, PF_RT_ACTION, rule->action); 951 nlattr_add_u8(nw, PF_RT_DIRECTION, rule->direction); 952 nlattr_add_u8(nw, PF_RT_LOG, rule->log); 953 nlattr_add_u8(nw, PF_RT_LOGIF, rule->logif); 954 nlattr_add_u8(nw, PF_RT_QUICK, rule->quick); 955 nlattr_add_u8(nw, PF_RT_IF_NOT, rule->ifnot); 956 nlattr_add_u8(nw, PF_RT_MATCH_TAG_NOT, rule->match_tag_not); 957 nlattr_add_u8(nw, PF_RT_NATPASS, rule->natpass); 958 nlattr_add_u8(nw, PF_RT_KEEP_STATE, rule->keep_state); 959 960 nlattr_add_u8(nw, PF_RT_AF, rule->af); 961 nlattr_add_u8(nw, PF_RT_PROTO, rule->proto); 962 nlattr_add_u8(nw, PF_RT_TYPE, rule->type); 963 nlattr_add_u8(nw, PF_RT_CODE, rule->code); 964 nlattr_add_u8(nw, PF_RT_FLAGS, rule->flags); 965 nlattr_add_u8(nw, PF_RT_FLAGSET, rule->flagset); 966 nlattr_add_u8(nw, PF_RT_MIN_TTL, rule->min_ttl); 967 nlattr_add_u8(nw, PF_RT_ALLOW_OPTS, rule->allow_opts); 968 nlattr_add_u8(nw, PF_RT_RT, rule->rt); 969 nlattr_add_u8(nw, PF_RT_RETURN_TTL, rule->return_ttl); 970 nlattr_add_u8(nw, PF_RT_TOS, rule->tos); 971 nlattr_add_u8(nw, PF_RT_SET_TOS, rule->set_tos); 972 nlattr_add_u8(nw, PF_RT_ANCHOR_RELATIVE, rule->anchor_relative); 973 nlattr_add_u8(nw, PF_RT_ANCHOR_WILDCARD, rule->anchor_wildcard); 974 nlattr_add_u8(nw, PF_RT_FLUSH, rule->flush); 975 nlattr_add_u8(nw, PF_RT_PRIO, rule->prio); 976 nlattr_add_u8(nw, PF_RT_SET_PRIO, rule->set_prio[0]); 977 nlattr_add_u8(nw, PF_RT_SET_PRIO_REPLY, rule->set_prio[1]); 978 979 nlattr_add_in6_addr(nw, PF_RT_DIVERT_ADDRESS, &rule->divert.addr.v6); 980 nlattr_add_u16(nw, PF_RT_DIVERT_PORT, rule->divert.port); 981 982 nlattr_add_u64(nw, PF_RT_PACKETS_IN, pf_counter_u64_fetch(&rule->packets[0])); 983 nlattr_add_u64(nw, PF_RT_PACKETS_OUT, pf_counter_u64_fetch(&rule->packets[1])); 984 nlattr_add_u64(nw, PF_RT_BYTES_IN, pf_counter_u64_fetch(&rule->bytes[0])); 985 nlattr_add_u64(nw, PF_RT_BYTES_OUT, pf_counter_u64_fetch(&rule->bytes[1])); 986 nlattr_add_u64(nw, PF_RT_EVALUATIONS, pf_counter_u64_fetch(&rule->evaluations)); 987 nlattr_add_u64(nw, PF_RT_TIMESTAMP, pf_get_timestamp(rule)); 988 nlattr_add_u64(nw, PF_RT_STATES_CUR, counter_u64_fetch(rule->states_cur)); 989 nlattr_add_u64(nw, PF_RT_STATES_TOTAL, counter_u64_fetch(rule->states_tot)); 990 nlattr_add_u64(nw, PF_RT_SRC_NODES, counter_u64_fetch(rule->src_nodes)); 991 992 error = pf_kanchor_copyout(ruleset, rule, anchor_call, sizeof(anchor_call)); 993 MPASS(error == 0); 994 995 nlattr_add_string(nw, PF_RT_ANCHOR_CALL, anchor_call); 996 997 if (attrs.clear) 998 pf_krule_clear_counters(rule); 999 1000 PF_RULES_WUNLOCK(); 1001 1002 if (!nlmsg_end(nw)) { 1003 error = ENOMEM; 1004 goto out; 1005 } 1006 1007 return (0); 1008 out: 1009 nlmsg_abort(nw); 1010 return (error); 1011 } 1012 1013 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1014 #define _OUT(_field) offsetof(struct pf_kstate_kill, _field) 1015 static const struct nlattr_parser nla_p_clear_states[] = { 1016 { .type = PF_CS_CMP_ID, .off = _OUT(psk_pfcmp.id), .cb = nlattr_get_uint64 }, 1017 { .type = PF_CS_CMP_CREATORID, .off = _OUT(psk_pfcmp.creatorid), .cb = nlattr_get_uint32 }, 1018 { .type = PF_CS_CMP_DIR, .off = _OUT(psk_pfcmp.direction), .cb = nlattr_get_uint8 }, 1019 { .type = PF_CS_AF, .off = _OUT(psk_af), .cb = nlattr_get_uint8 }, 1020 { .type = PF_CS_PROTO, .off = _OUT(psk_proto), .cb = nlattr_get_uint8 }, 1021 { .type = PF_CS_SRC, .off = _OUT(psk_src), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, 1022 { .type = PF_CS_DST, .off = _OUT(psk_dst), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, 1023 { .type = PF_CS_RT_ADDR, .off = _OUT(psk_rt_addr), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, 1024 { .type = PF_CS_IFNAME, .off = _OUT(psk_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 1025 { .type = PF_CS_LABEL, .off = _OUT(psk_label), .arg = (void *)PF_RULE_LABEL_SIZE, .cb = nlattr_get_chara }, 1026 { .type = PF_CS_KILL_MATCH, .off = _OUT(psk_kill_match), .cb = nlattr_get_bool }, 1027 { .type = PF_CS_NAT, .off = _OUT(psk_nat), .cb = nlattr_get_bool }, 1028 }; 1029 static const struct nlfield_parser nlf_p_clear_states[] = {}; 1030 #undef _IN 1031 #undef _OUT 1032 NL_DECLARE_PARSER(clear_states_parser, struct genlmsghdr, nlf_p_clear_states, nla_p_clear_states); 1033 1034 static int 1035 pf_handle_killclear_states(struct nlmsghdr *hdr, struct nl_pstate *npt, int cmd) 1036 { 1037 struct pf_kstate_kill kill = {}; 1038 struct epoch_tracker et; 1039 struct nl_writer *nw = npt->nw; 1040 struct genlmsghdr *ghdr_new; 1041 int error; 1042 unsigned int killed = 0; 1043 1044 error = nl_parse_nlmsg(hdr, &clear_states_parser, npt, &kill); 1045 if (error != 0) 1046 return (error); 1047 1048 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1049 return (ENOMEM); 1050 1051 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1052 ghdr_new->cmd = cmd; 1053 ghdr_new->version = 0; 1054 ghdr_new->reserved = 0; 1055 1056 NET_EPOCH_ENTER(et); 1057 if (cmd == PFNL_CMD_KILLSTATES) 1058 pf_killstates(&kill, &killed); 1059 else 1060 killed = pf_clear_states(&kill); 1061 NET_EPOCH_EXIT(et); 1062 1063 nlattr_add_u32(nw, PF_CS_KILLED, killed); 1064 1065 if (! nlmsg_end(nw)) { 1066 error = ENOMEM; 1067 goto out; 1068 } 1069 1070 return (0); 1071 1072 out: 1073 nlmsg_abort(nw); 1074 return (error); 1075 } 1076 1077 static int 1078 pf_handle_clear_states(struct nlmsghdr *hdr, struct nl_pstate *npt) 1079 { 1080 return (pf_handle_killclear_states(hdr, npt, PFNL_CMD_CLRSTATES)); 1081 } 1082 1083 static int 1084 pf_handle_kill_states(struct nlmsghdr *hdr, struct nl_pstate *npt) 1085 { 1086 return (pf_handle_killclear_states(hdr, npt, PFNL_CMD_KILLSTATES)); 1087 } 1088 1089 struct nl_parsed_set_statusif { 1090 char ifname[IFNAMSIZ]; 1091 }; 1092 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1093 #define _OUT(_field) offsetof(struct nl_parsed_set_statusif, _field) 1094 static const struct nlattr_parser nla_p_set_statusif[] = { 1095 { .type = PF_SS_IFNAME, .off = _OUT(ifname), .arg = (const void *)IFNAMSIZ, .cb = nlattr_get_chara }, 1096 }; 1097 static const struct nlfield_parser nlf_p_set_statusif[] = {}; 1098 #undef _IN 1099 #undef _OUT 1100 NL_DECLARE_PARSER(set_statusif_parser, struct genlmsghdr, nlf_p_set_statusif, nla_p_set_statusif); 1101 1102 static int 1103 pf_handle_set_statusif(struct nlmsghdr *hdr, struct nl_pstate *npt) 1104 { 1105 int error; 1106 struct nl_parsed_set_statusif attrs = {}; 1107 1108 error = nl_parse_nlmsg(hdr, &set_statusif_parser, npt, &attrs); 1109 if (error != 0) 1110 return (error); 1111 1112 PF_RULES_WLOCK(); 1113 strlcpy(V_pf_status.ifname, attrs.ifname, IFNAMSIZ); 1114 PF_RULES_WUNLOCK(); 1115 1116 return (0); 1117 } 1118 1119 static bool 1120 nlattr_add_counters(struct nl_writer *nw, int attr, size_t number, char **names, 1121 counter_u64_t *counters) 1122 { 1123 for (int i = 0; i < number; i++) { 1124 int off = nlattr_add_nested(nw, attr); 1125 nlattr_add_u32(nw, PF_C_ID, i); 1126 nlattr_add_string(nw, PF_C_NAME, names[i]); 1127 nlattr_add_u64(nw, PF_C_COUNTER, counter_u64_fetch(counters[i])); 1128 nlattr_set_len(nw, off); 1129 } 1130 1131 return (true); 1132 } 1133 1134 static bool 1135 nlattr_add_fcounters(struct nl_writer *nw, int attr, size_t number, char **names, 1136 struct pf_counter_u64 *counters) 1137 { 1138 for (int i = 0; i < number; i++) { 1139 int off = nlattr_add_nested(nw, attr); 1140 nlattr_add_u32(nw, PF_C_ID, i); 1141 nlattr_add_string(nw, PF_C_NAME, names[i]); 1142 nlattr_add_u64(nw, PF_C_COUNTER, pf_counter_u64_fetch(&counters[i])); 1143 nlattr_set_len(nw, off); 1144 } 1145 1146 return (true); 1147 } 1148 1149 static bool 1150 nlattr_add_u64_array(struct nl_writer *nw, int attr, size_t number, uint64_t *array) 1151 { 1152 int off = nlattr_add_nested(nw, attr); 1153 1154 for (size_t i = 0; i < number; i++) 1155 nlattr_add_u64(nw, 0, array[i]); 1156 1157 nlattr_set_len(nw, off); 1158 1159 return (true); 1160 } 1161 1162 static int 1163 pf_handle_get_status(struct nlmsghdr *hdr, struct nl_pstate *npt) 1164 { 1165 struct pf_status s; 1166 struct nl_writer *nw = npt->nw; 1167 struct genlmsghdr *ghdr_new; 1168 char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES; 1169 char *pf_lcounter[KLCNT_MAX+1] = KLCNT_NAMES; 1170 char *pf_fcounter[FCNT_MAX+1] = FCNT_NAMES; 1171 int error; 1172 1173 PF_RULES_RLOCK_TRACKER; 1174 1175 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1176 return (ENOMEM); 1177 1178 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1179 ghdr_new->cmd = PFNL_CMD_GET_STATUS; 1180 ghdr_new->version = 0; 1181 ghdr_new->reserved = 0; 1182 1183 PF_RULES_RLOCK(); 1184 1185 nlattr_add_string(nw, PF_GS_IFNAME, V_pf_status.ifname); 1186 nlattr_add_bool(nw, PF_GS_RUNNING, V_pf_status.running); 1187 nlattr_add_u32(nw, PF_GS_SINCE, V_pf_status.since); 1188 nlattr_add_u32(nw, PF_GS_DEBUG, V_pf_status.debug); 1189 nlattr_add_u32(nw, PF_GS_HOSTID, ntohl(V_pf_status.hostid)); 1190 nlattr_add_u32(nw, PF_GS_STATES, V_pf_status.states); 1191 nlattr_add_u32(nw, PF_GS_SRC_NODES, V_pf_status.src_nodes); 1192 nlattr_add_u32(nw, PF_GS_REASSEMBLE, V_pf_status.reass); 1193 nlattr_add_u32(nw, PF_GS_SYNCOOKIES_ACTIVE, V_pf_status.syncookies_active); 1194 1195 nlattr_add_counters(nw, PF_GS_COUNTERS, PFRES_MAX, pf_reasons, 1196 V_pf_status.counters); 1197 nlattr_add_counters(nw, PF_GS_LCOUNTERS, KLCNT_MAX, pf_lcounter, 1198 V_pf_status.lcounters); 1199 nlattr_add_fcounters(nw, PF_GS_FCOUNTERS, FCNT_MAX, pf_fcounter, 1200 V_pf_status.fcounters); 1201 nlattr_add_counters(nw, PF_GS_SCOUNTERS, SCNT_MAX, pf_fcounter, 1202 V_pf_status.scounters); 1203 1204 pfi_update_status(V_pf_status.ifname, &s); 1205 nlattr_add_u64_array(nw, PF_GS_BCOUNTERS, 2 * 2, (uint64_t *)s.bcounters); 1206 nlattr_add_u64_array(nw, PF_GS_PCOUNTERS, 2 * 2 * 2, (uint64_t *)s.pcounters); 1207 1208 nlattr_add(nw, PF_GS_CHKSUM, PF_MD5_DIGEST_LENGTH, V_pf_status.pf_chksum); 1209 1210 PF_RULES_RUNLOCK(); 1211 1212 if (!nlmsg_end(nw)) { 1213 error = ENOMEM; 1214 goto out; 1215 } 1216 1217 return (0); 1218 1219 out: 1220 nlmsg_abort(nw); 1221 return (error); 1222 } 1223 1224 static int 1225 pf_handle_clear_status(struct nlmsghdr *hdr, struct nl_pstate *npt) 1226 { 1227 pf_ioctl_clear_status(); 1228 1229 return (0); 1230 } 1231 1232 struct pf_nl_natlook { 1233 sa_family_t af; 1234 uint8_t direction; 1235 uint8_t proto; 1236 struct pf_addr src; 1237 struct pf_addr dst; 1238 uint16_t sport; 1239 uint16_t dport; 1240 }; 1241 1242 #define _IN(_field) offsetof(struct genlmsghdr, _field) 1243 #define _OUT(_field) offsetof(struct pf_nl_natlook, _field) 1244 static const struct nlattr_parser nla_p_natlook[] = { 1245 { .type = PF_NL_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 1246 { .type = PF_NL_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 }, 1247 { .type = PF_NL_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 }, 1248 { .type = PF_NL_SRC_ADDR, .off = _OUT(src), .cb = nlattr_get_in6_addr }, 1249 { .type = PF_NL_DST_ADDR, .off = _OUT(dst), .cb = nlattr_get_in6_addr }, 1250 { .type = PF_NL_SRC_PORT, .off = _OUT(sport), .cb = nlattr_get_uint16 }, 1251 { .type = PF_NL_DST_PORT, .off = _OUT(dport), .cb = nlattr_get_uint16 }, 1252 }; 1253 static const struct nlfield_parser nlf_p_natlook[] = {}; 1254 #undef _IN 1255 #undef _OUT 1256 NL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, nlf_p_natlook, nla_p_natlook); 1257 1258 static int 1259 pf_handle_natlook(struct nlmsghdr *hdr, struct nl_pstate *npt) 1260 { 1261 struct pf_nl_natlook attrs = {}; 1262 struct pf_state_key_cmp key = {}; 1263 struct nl_writer *nw = npt->nw; 1264 struct pf_state_key *sk; 1265 struct pf_kstate *state; 1266 struct genlmsghdr *ghdr_new; 1267 int error, m = 0; 1268 int sidx, didx; 1269 1270 error = nl_parse_nlmsg(hdr, &natlook_parser, npt, &attrs); 1271 if (error != 0) 1272 return (error); 1273 1274 if (attrs.proto == 0 || 1275 PF_AZERO(&attrs.src, attrs.af) || 1276 PF_AZERO(&attrs.dst, attrs.af) || 1277 ((attrs.proto == IPPROTO_TCP || attrs.proto == IPPROTO_UDP) && 1278 (attrs.sport == 0 || attrs.dport == 0))) 1279 return (EINVAL); 1280 1281 /* NATLOOK src and dst are reversed, so reverse sidx/didx */ 1282 sidx = (attrs.direction == PF_IN) ? 1 : 0; 1283 didx = (attrs.direction == PF_IN) ? 0 : 1; 1284 1285 key.af = attrs.af; 1286 key.proto = attrs.proto; 1287 PF_ACPY(&key.addr[sidx], &attrs.src, attrs.af); 1288 key.port[sidx] = attrs.sport; 1289 PF_ACPY(&key.addr[didx], &attrs.dst, attrs.af); 1290 key.port[didx] = attrs.dport; 1291 1292 state = pf_find_state_all(&key, attrs.direction, &m); 1293 if (state == NULL) 1294 return (ENOENT); 1295 if (m > 1) { 1296 PF_STATE_UNLOCK(state); 1297 return (E2BIG); 1298 } 1299 1300 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) { 1301 PF_STATE_UNLOCK(state); 1302 return (ENOMEM); 1303 } 1304 1305 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1306 ghdr_new->cmd = PFNL_CMD_NATLOOK; 1307 ghdr_new->version = 0; 1308 ghdr_new->reserved = 0; 1309 1310 sk = state->key[sidx]; 1311 1312 nlattr_add_in6_addr(nw, PF_NL_SRC_ADDR, &sk->addr[sidx].v6); 1313 nlattr_add_in6_addr(nw, PF_NL_DST_ADDR, &sk->addr[didx].v6); 1314 nlattr_add_u16(nw, PF_NL_SRC_PORT, sk->port[sidx]); 1315 nlattr_add_u16(nw, PF_NL_DST_PORT, sk->port[didx]); 1316 1317 PF_STATE_UNLOCK(state); 1318 1319 if (!nlmsg_end(nw)) { 1320 nlmsg_abort(nw); 1321 return (ENOMEM); 1322 } 1323 1324 return (0); 1325 } 1326 1327 struct pf_nl_set_debug 1328 { 1329 uint32_t level; 1330 }; 1331 #define _OUT(_field) offsetof(struct pf_nl_set_debug, _field) 1332 static const struct nlattr_parser nla_p_set_debug[] = { 1333 { .type = PF_SD_LEVEL, .off = _OUT(level), .cb = nlattr_get_uint32 }, 1334 }; 1335 static const struct nlfield_parser nlf_p_set_debug[] = {}; 1336 #undef _OUT 1337 NL_DECLARE_PARSER(set_debug_parser, struct genlmsghdr, nlf_p_set_debug, nla_p_set_debug); 1338 1339 static int 1340 pf_handle_set_debug(struct nlmsghdr *hdr, struct nl_pstate *npt) 1341 { 1342 struct pf_nl_set_debug attrs = {}; 1343 int error; 1344 1345 error = nl_parse_nlmsg(hdr, &set_debug_parser, npt, &attrs); 1346 if (error != 0) 1347 return (error); 1348 1349 PF_RULES_WLOCK(); 1350 V_pf_status.debug = attrs.level; 1351 PF_RULES_WUNLOCK(); 1352 1353 return (0); 1354 } 1355 1356 struct pf_nl_set_timeout 1357 { 1358 uint32_t timeout; 1359 uint32_t seconds; 1360 }; 1361 #define _OUT(_field) offsetof(struct pf_nl_set_timeout, _field) 1362 static const struct nlattr_parser nla_p_set_timeout[] = { 1363 { .type = PF_TO_TIMEOUT, .off = _OUT(timeout), .cb = nlattr_get_uint32 }, 1364 { .type = PF_TO_SECONDS, .off = _OUT(seconds), .cb = nlattr_get_uint32 }, 1365 }; 1366 static const struct nlfield_parser nlf_p_set_timeout[] = {}; 1367 #undef _OUT 1368 NL_DECLARE_PARSER(set_timeout_parser, struct genlmsghdr, nlf_p_set_timeout, nla_p_set_timeout); 1369 1370 static int 1371 pf_handle_set_timeout(struct nlmsghdr *hdr, struct nl_pstate *npt) 1372 { 1373 struct pf_nl_set_timeout attrs = {}; 1374 int error; 1375 1376 error = nl_parse_nlmsg(hdr, &set_timeout_parser, npt, &attrs); 1377 if (error != 0) 1378 return (error); 1379 1380 return (pf_ioctl_set_timeout(attrs.timeout, attrs.seconds, NULL)); 1381 } 1382 1383 static int 1384 pf_handle_get_timeout(struct nlmsghdr *hdr, struct nl_pstate *npt) 1385 { 1386 struct pf_nl_set_timeout attrs = {}; 1387 struct nl_writer *nw = npt->nw; 1388 struct genlmsghdr *ghdr_new; 1389 int error; 1390 1391 error = nl_parse_nlmsg(hdr, &set_timeout_parser, npt, &attrs); 1392 if (error != 0) 1393 return (error); 1394 1395 error = pf_ioctl_get_timeout(attrs.timeout, &attrs.seconds); 1396 if (error != 0) 1397 return (error); 1398 1399 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1400 return (ENOMEM); 1401 1402 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1403 ghdr_new->cmd = PFNL_CMD_GET_TIMEOUT; 1404 ghdr_new->version = 0; 1405 ghdr_new->reserved = 0; 1406 1407 nlattr_add_u32(nw, PF_TO_SECONDS, attrs.seconds); 1408 1409 if (!nlmsg_end(nw)) { 1410 nlmsg_abort(nw); 1411 return (ENOMEM); 1412 } 1413 1414 return (0); 1415 } 1416 1417 struct pf_nl_set_limit 1418 { 1419 uint32_t index; 1420 uint32_t limit; 1421 }; 1422 #define _OUT(_field) offsetof(struct pf_nl_set_limit, _field) 1423 static const struct nlattr_parser nla_p_set_limit[] = { 1424 { .type = PF_LI_INDEX, .off = _OUT(index), .cb = nlattr_get_uint32 }, 1425 { .type = PF_LI_LIMIT, .off = _OUT(limit), .cb = nlattr_get_uint32 }, 1426 }; 1427 static const struct nlfield_parser nlf_p_set_limit[] = {}; 1428 #undef _OUT 1429 NL_DECLARE_PARSER(set_limit_parser, struct genlmsghdr, nlf_p_set_limit, nla_p_set_limit); 1430 1431 static int 1432 pf_handle_set_limit(struct nlmsghdr *hdr, struct nl_pstate *npt) 1433 { 1434 struct pf_nl_set_limit attrs = {}; 1435 int error; 1436 1437 error = nl_parse_nlmsg(hdr, &set_limit_parser, npt, &attrs); 1438 if (error != 0) 1439 return (error); 1440 1441 return (pf_ioctl_set_limit(attrs.index, attrs.limit, NULL)); 1442 } 1443 1444 static int 1445 pf_handle_get_limit(struct nlmsghdr *hdr, struct nl_pstate *npt) 1446 { 1447 struct pf_nl_set_limit attrs = {}; 1448 struct nl_writer *nw = npt->nw; 1449 struct genlmsghdr *ghdr_new; 1450 int error; 1451 1452 error = nl_parse_nlmsg(hdr, &set_limit_parser, npt, &attrs); 1453 if (error != 0) 1454 return (error); 1455 1456 error = pf_ioctl_get_limit(attrs.index, &attrs.limit); 1457 if (error != 0) 1458 return (error); 1459 1460 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1461 return (ENOMEM); 1462 1463 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1464 ghdr_new->cmd = PFNL_CMD_GET_LIMIT; 1465 ghdr_new->version = 0; 1466 ghdr_new->reserved = 0; 1467 1468 nlattr_add_u32(nw, PF_LI_LIMIT, attrs.limit); 1469 1470 if (!nlmsg_end(nw)) { 1471 nlmsg_abort(nw); 1472 return (ENOMEM); 1473 } 1474 1475 return (0); 1476 } 1477 1478 static int 1479 pf_handle_begin_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) 1480 { 1481 struct nl_writer *nw = npt->nw; 1482 struct genlmsghdr *ghdr_new; 1483 uint32_t ticket; 1484 int error; 1485 1486 error = pf_ioctl_begin_addrs(&ticket); 1487 if (error != 0) 1488 return (error); 1489 1490 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1491 return (ENOMEM); 1492 1493 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1494 ghdr_new->cmd = PFNL_CMD_BEGIN_ADDRS; 1495 ghdr_new->version = 0; 1496 ghdr_new->reserved = 0; 1497 1498 nlattr_add_u32(nw, PF_BA_TICKET, ticket); 1499 1500 if (!nlmsg_end(nw)) { 1501 nlmsg_abort(nw); 1502 return (ENOMEM); 1503 } 1504 1505 return (0); 1506 } 1507 1508 static bool 1509 nlattr_add_pool_addr(struct nl_writer *nw, int attrtype, struct pf_pooladdr *a) 1510 { 1511 int off; 1512 1513 off = nlattr_add_nested(nw, attrtype); 1514 1515 nlattr_add_addr_wrap(nw, PF_PA_ADDR, &a->addr); 1516 nlattr_add_string(nw, PF_PA_IFNAME, a->ifname); 1517 1518 nlattr_set_len(nw, off); 1519 1520 return (true); 1521 } 1522 1523 #define _OUT(_field) offsetof(struct pf_pooladdr, _field) 1524 static const struct nlattr_parser nla_p_pool_addr[] = { 1525 { .type = PF_PA_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = nlattr_get_nested }, 1526 { .type = PF_PA_IFNAME, .off = _OUT(ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 1527 }; 1528 NL_DECLARE_ATTR_PARSER(pool_addr_parser, nla_p_pool_addr); 1529 #undef _OUT 1530 1531 #define _OUT(_field) offsetof(struct pfioc_pooladdr, _field) 1532 static const struct nlattr_parser nla_p_add_addr[] = { 1533 { .type = PF_AA_ACTION, .off = _OUT(action), .cb = nlattr_get_uint32 }, 1534 { .type = PF_AA_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, 1535 { .type = PF_AA_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 1536 { .type = PF_AA_R_NUM, .off = _OUT(r_num), .cb = nlattr_get_uint32 }, 1537 { .type = PF_AA_R_ACTION, .off = _OUT(r_action), .cb = nlattr_get_uint8 }, 1538 { .type = PF_AA_R_LAST, .off = _OUT(r_last), .cb = nlattr_get_uint8 }, 1539 { .type = PF_AA_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 1540 { .type = PF_AA_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 1541 { .type = PF_AA_ADDR, .off = _OUT(addr), .arg = &pool_addr_parser, .cb = nlattr_get_nested }, 1542 }; 1543 static const struct nlfield_parser nlf_p_add_addr[] = {}; 1544 #undef _OUT 1545 NL_DECLARE_PARSER(add_addr_parser, struct genlmsghdr, nlf_p_add_addr, nla_p_add_addr); 1546 1547 static int 1548 pf_handle_add_addr(struct nlmsghdr *hdr, struct nl_pstate *npt) 1549 { 1550 struct pfioc_pooladdr attrs = { 0 }; 1551 int error; 1552 1553 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); 1554 if (error != 0) 1555 return (error); 1556 1557 error = pf_ioctl_add_addr(&attrs); 1558 1559 return (error); 1560 } 1561 1562 static int 1563 pf_handle_get_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) 1564 { 1565 struct pfioc_pooladdr attrs = { 0 }; 1566 struct nl_writer *nw = npt->nw; 1567 struct genlmsghdr *ghdr_new; 1568 int error; 1569 1570 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); 1571 if (error != 0) 1572 return (error); 1573 1574 error = pf_ioctl_get_addrs(&attrs); 1575 if (error != 0) 1576 return (error); 1577 1578 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1579 return (ENOMEM); 1580 1581 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1582 ghdr_new->cmd = PFNL_CMD_GET_ADDRS; 1583 ghdr_new->version = 0; 1584 ghdr_new->reserved = 0; 1585 1586 nlattr_add_u32(nw, PF_AA_NR, attrs.nr); 1587 1588 if (!nlmsg_end(nw)) { 1589 nlmsg_abort(nw); 1590 return (ENOMEM); 1591 } 1592 1593 return (error); 1594 } 1595 1596 static int 1597 pf_handle_get_addr(struct nlmsghdr *hdr, struct nl_pstate *npt) 1598 { 1599 struct pfioc_pooladdr attrs = { 0 }; 1600 struct nl_writer *nw = npt->nw; 1601 struct genlmsghdr *ghdr_new; 1602 int error; 1603 1604 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); 1605 if (error != 0) 1606 return (error); 1607 1608 error = pf_ioctl_get_addr(&attrs); 1609 if (error != 0) 1610 return (error); 1611 1612 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1613 return (ENOMEM); 1614 1615 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1616 ghdr_new->cmd = PFNL_CMD_GET_ADDR; 1617 ghdr_new->version = 0; 1618 ghdr_new->reserved = 0; 1619 1620 nlattr_add_u32(nw, PF_AA_ACTION, attrs.action); 1621 nlattr_add_u32(nw, PF_AA_TICKET, attrs.ticket); 1622 nlattr_add_u32(nw, PF_AA_NR, attrs.nr); 1623 nlattr_add_u32(nw, PF_AA_R_NUM, attrs.r_num); 1624 nlattr_add_u8(nw, PF_AA_R_ACTION, attrs.r_action); 1625 nlattr_add_u8(nw, PF_AA_R_LAST, attrs.r_last); 1626 nlattr_add_u8(nw, PF_AA_AF, attrs.af); 1627 nlattr_add_string(nw, PF_AA_ANCHOR, attrs.anchor); 1628 nlattr_add_pool_addr(nw, PF_AA_ADDR, &attrs.addr); 1629 1630 if (!nlmsg_end(nw)) { 1631 nlmsg_abort(nw); 1632 return (ENOMEM); 1633 } 1634 1635 return (0); 1636 } 1637 1638 #define _OUT(_field) offsetof(struct pfioc_ruleset, _field) 1639 static const struct nlattr_parser nla_p_ruleset[] = { 1640 { .type = PF_RS_PATH, .off = _OUT(path), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 1641 { .type = PF_RS_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 1642 }; 1643 static const struct nlfield_parser nlf_p_ruleset[] = { 1644 }; 1645 NL_DECLARE_PARSER(ruleset_parser, struct genlmsghdr, nlf_p_ruleset, nla_p_ruleset); 1646 #undef _OUT 1647 1648 static int 1649 pf_handle_get_rulesets(struct nlmsghdr *hdr, struct nl_pstate *npt) 1650 { 1651 struct pfioc_ruleset attrs = { 0 }; 1652 struct nl_writer *nw = npt->nw; 1653 struct genlmsghdr *ghdr_new; 1654 int error; 1655 1656 error = nl_parse_nlmsg(hdr, &ruleset_parser, npt, &attrs); 1657 if (error != 0) 1658 return (error); 1659 1660 error = pf_ioctl_get_rulesets(&attrs); 1661 if (error != 0) 1662 return (error); 1663 1664 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1665 return (ENOMEM); 1666 1667 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1668 ghdr_new->cmd = PFNL_CMD_GET_RULESETS; 1669 ghdr_new->version = 0; 1670 ghdr_new->reserved = 0; 1671 1672 nlattr_add_u32(nw, PF_RS_NR, attrs.nr); 1673 1674 if (!nlmsg_end(nw)) { 1675 nlmsg_abort(nw); 1676 return (ENOMEM); 1677 } 1678 1679 return (0); 1680 } 1681 1682 static int 1683 pf_handle_get_ruleset(struct nlmsghdr *hdr, struct nl_pstate *npt) 1684 { 1685 struct pfioc_ruleset attrs = { 0 }; 1686 struct nl_writer *nw = npt->nw; 1687 struct genlmsghdr *ghdr_new; 1688 int error; 1689 1690 error = nl_parse_nlmsg(hdr, &ruleset_parser, npt, &attrs); 1691 if (error) 1692 return (error); 1693 1694 error = pf_ioctl_get_ruleset(&attrs); 1695 if (error != 0) 1696 return (error); 1697 1698 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1699 return (ENOMEM); 1700 1701 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1702 ghdr_new->cmd = PFNL_CMD_GET_RULESET; 1703 ghdr_new->version = 0; 1704 ghdr_new->reserved = 0; 1705 1706 nlattr_add_string(nw, PF_RS_NAME, attrs.name); 1707 1708 if (!nlmsg_end(nw)) { 1709 nlmsg_abort(nw); 1710 return (ENOMEM); 1711 } 1712 1713 return (0); 1714 } 1715 1716 static bool 1717 nlattr_add_pf_threshold(struct nl_writer *nw, int attrtype, 1718 struct pf_threshold *t, int secs) 1719 { 1720 int off = nlattr_add_nested(nw, attrtype); 1721 int diff, conn_rate_count; 1722 1723 /* Adjust the connection rate estimate. */ 1724 conn_rate_count = t->count; 1725 diff = secs - t->last; 1726 if (diff >= t->seconds) 1727 conn_rate_count = 0; 1728 else 1729 conn_rate_count -= t->count * diff / t->seconds; 1730 1731 nlattr_add_u32(nw, PF_TH_LIMIT, t->limit); 1732 nlattr_add_u32(nw, PF_TH_SECONDS, t->seconds); 1733 nlattr_add_u32(nw, PF_TH_COUNT, conn_rate_count); 1734 nlattr_add_u32(nw, PF_TH_LAST, t->last); 1735 1736 nlattr_set_len(nw, off); 1737 1738 return (true); 1739 } 1740 1741 static int 1742 pf_handle_get_srcnodes(struct nlmsghdr *hdr, struct nl_pstate *npt) 1743 { 1744 struct nl_writer *nw = npt->nw; 1745 struct genlmsghdr *ghdr_new; 1746 struct pf_ksrc_node *n; 1747 struct pf_srchash *sh; 1748 int i; 1749 int secs; 1750 1751 hdr->nlmsg_flags |= NLM_F_MULTI; 1752 1753 for (i = 0, sh = V_pf_srchash; i <= V_pf_srchashmask; 1754 i++, sh++) { 1755 /* Avoid locking empty rows. */ 1756 if (LIST_EMPTY(&sh->nodes)) 1757 continue; 1758 1759 PF_HASHROW_LOCK(sh); 1760 secs = time_uptime; 1761 1762 LIST_FOREACH(n, &sh->nodes, entry) { 1763 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) { 1764 nlmsg_abort(nw); 1765 return (ENOMEM); 1766 } 1767 1768 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1769 ghdr_new->cmd = PFNL_CMD_GET_SRCNODES; 1770 ghdr_new->version = 0; 1771 ghdr_new->reserved = 0; 1772 1773 nlattr_add_in6_addr(nw, PF_SN_ADDR, &n->addr.v6); 1774 nlattr_add_in6_addr(nw, PF_SN_RADDR, &n->raddr.v6); 1775 nlattr_add_u32(nw, PF_SN_RULE_NR, n->rule->nr); 1776 nlattr_add_u64(nw, PF_SN_BYTES_IN, counter_u64_fetch(n->bytes[0])); 1777 nlattr_add_u64(nw, PF_SN_BYTES_OUT, counter_u64_fetch(n->bytes[1])); 1778 nlattr_add_u64(nw, PF_SN_PACKETS_IN, counter_u64_fetch(n->packets[0])); 1779 nlattr_add_u64(nw, PF_SN_PACKETS_OUT, counter_u64_fetch(n->packets[1])); 1780 nlattr_add_u32(nw, PF_SN_STATES, n->states); 1781 nlattr_add_u32(nw, PF_SN_CONNECTIONS, n->conn); 1782 nlattr_add_u8(nw, PF_SN_AF, n->af); 1783 nlattr_add_u8(nw, PF_SN_RULE_TYPE, n->ruletype); 1784 1785 nlattr_add_u64(nw, PF_SN_CREATION, secs - n->creation); 1786 if (n->expire > secs) 1787 nlattr_add_u64(nw, PF_SN_EXPIRE, n->expire - secs); 1788 else 1789 nlattr_add_u64(nw, PF_SN_EXPIRE, 0); 1790 1791 nlattr_add_pf_threshold(nw, PF_SN_CONNECTION_RATE, 1792 &n->conn_rate, secs); 1793 1794 if (!nlmsg_end(nw)) { 1795 PF_HASHROW_UNLOCK(sh); 1796 nlmsg_abort(nw); 1797 return (ENOMEM); 1798 } 1799 } 1800 PF_HASHROW_UNLOCK(sh); 1801 } 1802 1803 return (0); 1804 } 1805 1806 static const struct nlhdr_parser *all_parsers[] = { 1807 &state_parser, 1808 &addrule_parser, 1809 &getrules_parser, 1810 &clear_states_parser, 1811 &set_statusif_parser, 1812 &natlook_parser, 1813 &set_debug_parser, 1814 &set_timeout_parser, 1815 &set_limit_parser, 1816 &pool_addr_parser, 1817 &add_addr_parser, 1818 &ruleset_parser, 1819 }; 1820 1821 static int family_id; 1822 1823 static const struct genl_cmd pf_cmds[] = { 1824 { 1825 .cmd_num = PFNL_CMD_GETSTATES, 1826 .cmd_name = "GETSTATES", 1827 .cmd_cb = pf_handle_getstates, 1828 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1829 .cmd_priv = PRIV_NETINET_PF, 1830 }, 1831 { 1832 .cmd_num = PFNL_CMD_GETCREATORS, 1833 .cmd_name = "GETCREATORS", 1834 .cmd_cb = pf_handle_getcreators, 1835 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1836 .cmd_priv = PRIV_NETINET_PF, 1837 }, 1838 { 1839 .cmd_num = PFNL_CMD_START, 1840 .cmd_name = "START", 1841 .cmd_cb = pf_handle_start, 1842 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1843 .cmd_priv = PRIV_NETINET_PF, 1844 }, 1845 { 1846 .cmd_num = PFNL_CMD_STOP, 1847 .cmd_name = "STOP", 1848 .cmd_cb = pf_handle_stop, 1849 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1850 .cmd_priv = PRIV_NETINET_PF, 1851 }, 1852 { 1853 .cmd_num = PFNL_CMD_ADDRULE, 1854 .cmd_name = "ADDRULE", 1855 .cmd_cb = pf_handle_addrule, 1856 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1857 .cmd_priv = PRIV_NETINET_PF, 1858 }, 1859 { 1860 .cmd_num = PFNL_CMD_GETRULES, 1861 .cmd_name = "GETRULES", 1862 .cmd_cb = pf_handle_getrules, 1863 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1864 .cmd_priv = PRIV_NETINET_PF, 1865 }, 1866 { 1867 .cmd_num = PFNL_CMD_GETRULE, 1868 .cmd_name = "GETRULE", 1869 .cmd_cb = pf_handle_getrule, 1870 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1871 .cmd_priv = PRIV_NETINET_PF, 1872 }, 1873 { 1874 .cmd_num = PFNL_CMD_CLRSTATES, 1875 .cmd_name = "CLRSTATES", 1876 .cmd_cb = pf_handle_clear_states, 1877 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1878 .cmd_priv = PRIV_NETINET_PF, 1879 }, 1880 { 1881 .cmd_num = PFNL_CMD_KILLSTATES, 1882 .cmd_name = "KILLSTATES", 1883 .cmd_cb = pf_handle_kill_states, 1884 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1885 .cmd_priv = PRIV_NETINET_PF, 1886 }, 1887 { 1888 .cmd_num = PFNL_CMD_SET_STATUSIF, 1889 .cmd_name = "SETSTATUSIF", 1890 .cmd_cb = pf_handle_set_statusif, 1891 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1892 .cmd_priv = PRIV_NETINET_PF, 1893 }, 1894 { 1895 .cmd_num = PFNL_CMD_GET_STATUS, 1896 .cmd_name = "GETSTATUS", 1897 .cmd_cb = pf_handle_get_status, 1898 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1899 .cmd_priv = PRIV_NETINET_PF, 1900 }, 1901 { 1902 .cmd_num = PFNL_CMD_CLEAR_STATUS, 1903 .cmd_name = "CLEARSTATUS", 1904 .cmd_cb = pf_handle_clear_status, 1905 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1906 .cmd_priv = PRIV_NETINET_PF, 1907 }, 1908 { 1909 .cmd_num = PFNL_CMD_NATLOOK, 1910 .cmd_name = "NATLOOK", 1911 .cmd_cb = pf_handle_natlook, 1912 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1913 .cmd_priv = PRIV_NETINET_PF, 1914 }, 1915 { 1916 .cmd_num = PFNL_CMD_SET_DEBUG, 1917 .cmd_name = "SET_DEBUG", 1918 .cmd_cb = pf_handle_set_debug, 1919 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1920 .cmd_priv = PRIV_NETINET_PF, 1921 }, 1922 { 1923 .cmd_num = PFNL_CMD_SET_TIMEOUT, 1924 .cmd_name = "SET_TIMEOUT", 1925 .cmd_cb = pf_handle_set_timeout, 1926 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1927 .cmd_priv = PRIV_NETINET_PF, 1928 }, 1929 { 1930 .cmd_num = PFNL_CMD_GET_TIMEOUT, 1931 .cmd_name = "GET_TIMEOUT", 1932 .cmd_cb = pf_handle_get_timeout, 1933 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1934 .cmd_priv = PRIV_NETINET_PF, 1935 }, 1936 { 1937 .cmd_num = PFNL_CMD_SET_LIMIT, 1938 .cmd_name = "SET_LIMIT", 1939 .cmd_cb = pf_handle_set_limit, 1940 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1941 .cmd_priv = PRIV_NETINET_PF, 1942 }, 1943 { 1944 .cmd_num = PFNL_CMD_GET_LIMIT, 1945 .cmd_name = "GET_LIMIT", 1946 .cmd_cb = pf_handle_get_limit, 1947 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1948 .cmd_priv = PRIV_NETINET_PF, 1949 }, 1950 { 1951 .cmd_num = PFNL_CMD_BEGIN_ADDRS, 1952 .cmd_name = "BEGIN_ADDRS", 1953 .cmd_cb = pf_handle_begin_addrs, 1954 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1955 .cmd_priv = PRIV_NETINET_PF, 1956 }, 1957 { 1958 .cmd_num = PFNL_CMD_ADD_ADDR, 1959 .cmd_name = "ADD_ADDR", 1960 .cmd_cb = pf_handle_add_addr, 1961 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1962 .cmd_priv = PRIV_NETINET_PF, 1963 }, 1964 { 1965 .cmd_num = PFNL_CMD_GET_ADDRS, 1966 .cmd_name = "GET_ADDRS", 1967 .cmd_cb = pf_handle_get_addrs, 1968 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1969 .cmd_priv = PRIV_NETINET_PF, 1970 }, 1971 { 1972 .cmd_num = PFNL_CMD_GET_ADDR, 1973 .cmd_name = "GET_ADDRS", 1974 .cmd_cb = pf_handle_get_addr, 1975 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1976 .cmd_priv = PRIV_NETINET_PF, 1977 }, 1978 { 1979 .cmd_num = PFNL_CMD_GET_RULESETS, 1980 .cmd_name = "GET_RULESETS", 1981 .cmd_cb = pf_handle_get_rulesets, 1982 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1983 .cmd_priv = PRIV_NETINET_PF, 1984 }, 1985 { 1986 .cmd_num = PFNL_CMD_GET_RULESET, 1987 .cmd_name = "GET_RULESET", 1988 .cmd_cb = pf_handle_get_ruleset, 1989 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1990 .cmd_priv = PRIV_NETINET_PF, 1991 }, 1992 { 1993 .cmd_num = PFNL_CMD_GET_SRCNODES, 1994 .cmd_name = "GET_SRCNODES", 1995 .cmd_cb = pf_handle_get_srcnodes, 1996 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1997 .cmd_priv = PRIV_NETINET_PF, 1998 }, 1999 }; 2000 2001 void 2002 pf_nl_register(void) 2003 { 2004 NL_VERIFY_PARSERS(all_parsers); 2005 2006 family_id = genl_register_family(PFNL_FAMILY_NAME, 0, 2, PFNL_CMD_MAX); 2007 genl_register_cmds(PFNL_FAMILY_NAME, pf_cmds, nitems(pf_cmds)); 2008 } 2009 2010 void 2011 pf_nl_unregister(void) 2012 { 2013 genl_unregister_family(PFNL_FAMILY_NAME); 2014 } 2015