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 static bool nlattr_add_pf_threshold(struct nl_writer *, int, 55 struct pf_kthreshold *); 56 57 struct nl_parsed_state { 58 uint8_t version; 59 uint32_t id; 60 uint32_t creatorid; 61 char ifname[IFNAMSIZ]; 62 uint16_t proto; 63 sa_family_t af; 64 struct pf_addr addr; 65 struct pf_addr mask; 66 }; 67 68 #define _IN(_field) offsetof(struct genlmsghdr, _field) 69 #define _OUT(_field) offsetof(struct nl_parsed_state, _field) 70 static const struct nlattr_parser nla_p_state[] = { 71 { .type = PF_ST_ID, .off = _OUT(id), .cb = nlattr_get_uint32 }, 72 { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = nlattr_get_uint32 }, 73 { .type = PF_ST_IFNAME, .arg = (const void *)IFNAMSIZ, .off = _OUT(ifname), .cb = nlattr_get_chara }, 74 { .type = PF_ST_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 75 { .type = PF_ST_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint16 }, 76 { .type = PF_ST_FILTER_ADDR, .off = _OUT(addr), .cb = nlattr_get_in6_addr }, 77 { .type = PF_ST_FILTER_MASK, .off = _OUT(mask), .cb = nlattr_get_in6_addr }, 78 }; 79 static const struct nlfield_parser nlf_p_generic[] = { 80 { .off_in = _IN(version), .off_out = _OUT(version), .cb = nlf_get_u8 }, 81 }; 82 #undef _IN 83 #undef _OUT 84 NL_DECLARE_PARSER(state_parser, struct genlmsghdr, nlf_p_generic, nla_p_state); 85 86 static void 87 dump_addr(struct nl_writer *nw, int attr, const struct pf_addr *addr, int af) 88 { 89 switch (af) { 90 case AF_INET: 91 nlattr_add(nw, attr, 4, &addr->v4); 92 break; 93 case AF_INET6: 94 nlattr_add(nw, attr, 16, &addr->v6); 95 break; 96 }; 97 } 98 99 static bool 100 dump_state_peer(struct nl_writer *nw, int attr, const struct pf_state_peer *peer) 101 { 102 int off = nlattr_add_nested(nw, attr); 103 if (off == 0) 104 return (false); 105 106 nlattr_add_u32(nw, PF_STP_SEQLO, peer->seqlo); 107 nlattr_add_u32(nw, PF_STP_SEQHI, peer->seqhi); 108 nlattr_add_u32(nw, PF_STP_SEQDIFF, peer->seqdiff); 109 nlattr_add_u16(nw, PF_STP_MAX_WIN, peer->max_win); 110 nlattr_add_u16(nw, PF_STP_MSS, peer->mss); 111 nlattr_add_u8(nw, PF_STP_STATE, peer->state); 112 nlattr_add_u8(nw, PF_STP_WSCALE, peer->wscale); 113 114 if (peer->scrub != NULL) { 115 struct pf_state_scrub *sc = peer->scrub; 116 uint16_t pfss_flags = sc->pfss_flags & PFSS_TIMESTAMP; 117 118 nlattr_add_u16(nw, PF_STP_PFSS_FLAGS, pfss_flags); 119 nlattr_add_u32(nw, PF_STP_PFSS_TS_MOD, sc->pfss_ts_mod); 120 nlattr_add_u8(nw, PF_STP_PFSS_TTL, sc->pfss_ttl); 121 nlattr_add_u8(nw, PF_STP_SCRUB_FLAG, PFSYNC_SCRUB_FLAG_VALID); 122 } 123 nlattr_set_len(nw, off); 124 125 return (true); 126 } 127 128 static bool 129 dump_state_key(struct nl_writer *nw, int attr, const struct pf_state_key *key) 130 { 131 int off = nlattr_add_nested(nw, attr); 132 if (off == 0) 133 return (false); 134 135 dump_addr(nw, PF_STK_ADDR0, &key->addr[0], key->af); 136 dump_addr(nw, PF_STK_ADDR1, &key->addr[1], key->af); 137 nlattr_add_u16(nw, PF_STK_PORT0, key->port[0]); 138 nlattr_add_u16(nw, PF_STK_PORT1, key->port[1]); 139 nlattr_add_u8(nw, PF_STK_AF, key->af); 140 nlattr_add_u16(nw, PF_STK_PROTO, key->proto); 141 142 nlattr_set_len(nw, off); 143 144 return (true); 145 } 146 147 static int 148 dump_state(struct nlpcb *nlp, const struct nlmsghdr *hdr, struct pf_kstate *s, 149 struct nl_pstate *npt) 150 { 151 struct nl_writer *nw = npt->nw; 152 int error = 0; 153 int af; 154 struct pf_state_key *key; 155 156 PF_STATE_LOCK_ASSERT(s); 157 158 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 159 goto enomem; 160 161 struct genlmsghdr *ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 162 ghdr_new->cmd = PFNL_CMD_GETSTATES; 163 ghdr_new->version = 0; 164 ghdr_new->reserved = 0; 165 166 nlattr_add_u64(nw, PF_ST_VERSION, PF_STATE_VERSION); 167 168 key = s->key[PF_SK_WIRE]; 169 if (!dump_state_key(nw, PF_ST_KEY_WIRE, key)) 170 goto enomem; 171 key = s->key[PF_SK_STACK]; 172 if (!dump_state_key(nw, PF_ST_KEY_STACK, key)) 173 goto enomem; 174 175 af = s->key[PF_SK_WIRE]->af; 176 nlattr_add_u8(nw, PF_ST_PROTO, s->key[PF_SK_WIRE]->proto); 177 nlattr_add_u8(nw, PF_ST_AF, af); 178 179 nlattr_add_string(nw, PF_ST_IFNAME, s->kif->pfik_name); 180 nlattr_add_string(nw, PF_ST_ORIG_IFNAME, s->orig_kif->pfik_name); 181 dump_addr(nw, PF_ST_RT_ADDR, &s->act.rt_addr, s->act.rt_af); 182 nlattr_add_u32(nw, PF_ST_CREATION, time_uptime - (s->creation / 1000)); 183 uint32_t expire = pf_state_expires(s); 184 if (expire > time_uptime) 185 expire = expire - time_uptime; 186 nlattr_add_u32(nw, PF_ST_EXPIRE, expire); 187 nlattr_add_u8(nw, PF_ST_DIRECTION, s->direction); 188 nlattr_add_u8(nw, PF_ST_LOG, s->act.log); 189 nlattr_add_u8(nw, PF_ST_TIMEOUT, s->timeout); 190 nlattr_add_u16(nw, PF_ST_STATE_FLAGS, s->state_flags); 191 uint8_t sync_flags = 0; 192 if (s->sns[PF_SN_LIMIT] != NULL) 193 sync_flags |= PFSYNC_FLAG_SRCNODE; 194 if (s->sns[PF_SN_NAT] != NULL || s->sns[PF_SN_ROUTE]) 195 sync_flags |= PFSYNC_FLAG_NATSRCNODE; 196 nlattr_add_u8(nw, PF_ST_SYNC_FLAGS, sync_flags); 197 nlattr_add_u64(nw, PF_ST_ID, s->id); 198 nlattr_add_u32(nw, PF_ST_CREATORID, htonl(s->creatorid)); 199 200 nlattr_add_u32(nw, PF_ST_RULE, s->rule ? s->rule->nr : -1); 201 nlattr_add_u32(nw, PF_ST_ANCHOR, s->anchor ? s->anchor->nr : -1); 202 nlattr_add_u32(nw, PF_ST_NAT_RULE, s->nat_rule ? s->nat_rule->nr : -1); 203 204 nlattr_add_u64(nw, PF_ST_PACKETS0, s->packets[0]); 205 nlattr_add_u64(nw, PF_ST_PACKETS1, s->packets[1]); 206 nlattr_add_u64(nw, PF_ST_BYTES0, s->bytes[0]); 207 nlattr_add_u64(nw, PF_ST_BYTES1, s->bytes[1]); 208 nlattr_add_u32(nw, PF_ST_RTABLEID, s->act.rtableid); 209 nlattr_add_u8(nw, PF_ST_MIN_TTL, s->act.min_ttl); 210 nlattr_add_u16(nw, PF_ST_MAX_MSS, s->act.max_mss); 211 nlattr_add_u16(nw, PF_ST_DNPIPE, s->act.dnpipe); 212 nlattr_add_u16(nw, PF_ST_DNRPIPE, s->act.dnrpipe); 213 nlattr_add_u8(nw, PF_ST_RT, s->act.rt); 214 if (s->act.rt_kif != NULL) 215 nlattr_add_string(nw, PF_ST_RT_IFNAME, s->act.rt_kif->pfik_name); 216 uint8_t src_node_flags = 0; 217 if (s->sns[PF_SN_LIMIT] != NULL) { 218 src_node_flags |= PFSTATE_SRC_NODE_LIMIT; 219 if (s->sns[PF_SN_LIMIT]->rule == &V_pf_default_rule) 220 src_node_flags |= PFSTATE_SRC_NODE_LIMIT_GLOBAL; 221 } 222 if (s->sns[PF_SN_NAT] != NULL) 223 src_node_flags |= PFSTATE_SRC_NODE_NAT; 224 if (s->sns[PF_SN_ROUTE] != NULL) 225 src_node_flags |= PFSTATE_SRC_NODE_ROUTE; 226 nlattr_add_u8(nw, PF_ST_SRC_NODE_FLAGS, src_node_flags); 227 nlattr_add_u8(nw, PF_ST_RT_AF, s->act.rt_af); 228 229 if (!dump_state_peer(nw, PF_ST_PEER_SRC, &s->src)) 230 goto enomem; 231 if (!dump_state_peer(nw, PF_ST_PEER_DST, &s->dst)) 232 goto enomem; 233 234 if (nlmsg_end(nw)) 235 return (0); 236 237 enomem: 238 error = ENOMEM; 239 nlmsg_abort(nw); 240 return (error); 241 } 242 243 static int 244 handle_dumpstates(struct nlpcb *nlp, struct nl_parsed_state *attrs, 245 struct nlmsghdr *hdr, struct nl_pstate *npt) 246 { 247 int error = 0; 248 249 hdr->nlmsg_flags |= NLM_F_MULTI; 250 251 for (int i = 0; i <= V_pf_hashmask; i++) { 252 struct pf_idhash *ih = &V_pf_idhash[i]; 253 struct pf_kstate *s; 254 255 if (LIST_EMPTY(&ih->states)) 256 continue; 257 258 PF_HASHROW_LOCK(ih); 259 LIST_FOREACH(s, &ih->states, entry) { 260 sa_family_t af = s->key[PF_SK_WIRE]->af; 261 262 if (s->timeout == PFTM_UNLINKED) 263 continue; 264 265 /* Filter */ 266 if (attrs->creatorid != 0 && s->creatorid != attrs->creatorid) 267 continue; 268 if (attrs->ifname[0] != 0 && 269 strncmp(attrs->ifname, s->kif->pfik_name, IFNAMSIZ) != 0) 270 continue; 271 if (attrs->proto != 0 && s->key[PF_SK_WIRE]->proto != attrs->proto) 272 continue; 273 if (attrs->af != 0 && af != attrs->af) 274 continue; 275 if (pf_match_addr(1, &s->key[PF_SK_WIRE]->addr[0], 276 &attrs->mask, &attrs->addr, af) && 277 pf_match_addr(1, &s->key[PF_SK_WIRE]->addr[1], 278 &attrs->mask, &attrs->addr, af) && 279 pf_match_addr(1, &s->key[PF_SK_STACK]->addr[0], 280 &attrs->mask, &attrs->addr, af) && 281 pf_match_addr(1, &s->key[PF_SK_STACK]->addr[1], 282 &attrs->mask, &attrs->addr, af)) 283 continue; 284 285 error = dump_state(nlp, hdr, s, npt); 286 if (error != 0) 287 break; 288 } 289 PF_HASHROW_UNLOCK(ih); 290 } 291 292 if (!nlmsg_end_dump(npt->nw, error, hdr)) { 293 NL_LOG(LOG_DEBUG, "Unable to finalize the dump"); 294 return (ENOMEM); 295 } 296 297 return (error); 298 } 299 300 static int 301 handle_getstate(struct nlpcb *nlp, struct nl_parsed_state *attrs, 302 struct nlmsghdr *hdr, struct nl_pstate *npt) 303 { 304 struct pf_kstate *s; 305 int ret; 306 307 s = pf_find_state_byid(attrs->id, attrs->creatorid); 308 if (s == NULL) 309 return (ENOENT); 310 ret = dump_state(nlp, hdr, s, npt); 311 PF_STATE_UNLOCK(s); 312 313 return (ret); 314 } 315 316 static int 317 dump_creatorid(struct nlpcb *nlp, const struct nlmsghdr *hdr, uint32_t creator, 318 struct nl_pstate *npt) 319 { 320 struct nl_writer *nw = npt->nw; 321 322 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 323 goto enomem; 324 325 struct genlmsghdr *ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 326 ghdr_new->cmd = PFNL_CMD_GETCREATORS; 327 ghdr_new->version = 0; 328 ghdr_new->reserved = 0; 329 330 nlattr_add_u32(nw, PF_ST_CREATORID, htonl(creator)); 331 332 if (nlmsg_end(nw)) 333 return (0); 334 335 enomem: 336 nlmsg_abort(nw); 337 return (ENOMEM); 338 } 339 340 static int 341 pf_handle_getstates(struct nlmsghdr *hdr, struct nl_pstate *npt) 342 { 343 int error; 344 345 struct nl_parsed_state attrs = {}; 346 error = nl_parse_nlmsg(hdr, &state_parser, npt, &attrs); 347 if (error != 0) 348 return (error); 349 350 if (attrs.id != 0) 351 error = handle_getstate(npt->nlp, &attrs, hdr, npt); 352 else 353 error = handle_dumpstates(npt->nlp, &attrs, hdr, npt); 354 355 return (error); 356 } 357 358 static int 359 pf_handle_getcreators(struct nlmsghdr *hdr, struct nl_pstate *npt) 360 { 361 uint32_t creators[16]; 362 int error = 0; 363 364 bzero(creators, sizeof(creators)); 365 366 for (int i = 0; i < V_pf_hashmask; i++) { 367 struct pf_idhash *ih = &V_pf_idhash[i]; 368 struct pf_kstate *s; 369 370 if (LIST_EMPTY(&ih->states)) 371 continue; 372 373 PF_HASHROW_LOCK(ih); 374 LIST_FOREACH(s, &ih->states, entry) { 375 int j; 376 if (s->timeout == PFTM_UNLINKED) 377 continue; 378 379 for (j = 0; j < nitems(creators); j++) { 380 if (creators[j] == s->creatorid) 381 break; 382 if (creators[j] == 0) { 383 creators[j] = s->creatorid; 384 break; 385 } 386 } 387 if (j == nitems(creators)) 388 printf("Warning: too many creators!\n"); 389 } 390 PF_HASHROW_UNLOCK(ih); 391 } 392 393 hdr->nlmsg_flags |= NLM_F_MULTI; 394 for (int i = 0; i < nitems(creators); i++) { 395 if (creators[i] == 0) 396 break; 397 error = dump_creatorid(npt->nlp, hdr, creators[i], npt); 398 } 399 400 if (!nlmsg_end_dump(npt->nw, error, hdr)) { 401 NL_LOG(LOG_DEBUG, "Unable to finalize the dump"); 402 return (ENOMEM); 403 } 404 405 return (error); 406 } 407 408 static int 409 pf_handle_start(struct nlmsghdr *hdr __unused, struct nl_pstate *npt __unused) 410 { 411 return (pf_start()); 412 } 413 414 static int 415 pf_handle_stop(struct nlmsghdr *hdr __unused, struct nl_pstate *npt __unused) 416 { 417 return (pf_stop()); 418 } 419 420 #define _OUT(_field) offsetof(struct pf_addr_wrap, _field) 421 static const struct nlattr_parser nla_p_addr_wrap[] = { 422 { .type = PF_AT_ADDR, .off = _OUT(v.a.addr), .cb = nlattr_get_in6_addr }, 423 { .type = PF_AT_MASK, .off = _OUT(v.a.mask), .cb = nlattr_get_in6_addr }, 424 { .type = PF_AT_IFNAME, .off = _OUT(v.ifname), .arg = (void *)IFNAMSIZ,.cb = nlattr_get_chara }, 425 { .type = PF_AT_TABLENAME, .off = _OUT(v.tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara }, 426 { .type = PF_AT_TYPE, .off = _OUT(type), .cb = nlattr_get_uint8 }, 427 { .type = PF_AT_IFLAGS, .off = _OUT(iflags), .cb = nlattr_get_uint8 }, 428 }; 429 NL_DECLARE_ATTR_PARSER(addr_wrap_parser, nla_p_addr_wrap); 430 #undef _OUT 431 432 static bool 433 nlattr_add_addr_wrap(struct nl_writer *nw, int attrtype, struct pf_addr_wrap *a) 434 { 435 int off = nlattr_add_nested(nw, attrtype); 436 437 nlattr_add_in6_addr(nw, PF_AT_ADDR, &a->v.a.addr.v6); 438 nlattr_add_in6_addr(nw, PF_AT_MASK, &a->v.a.mask.v6); 439 nlattr_add_u8(nw, PF_AT_TYPE, a->type); 440 nlattr_add_u8(nw, PF_AT_IFLAGS, a->iflags); 441 442 if (a->type == PF_ADDR_DYNIFTL) { 443 nlattr_add_string(nw, PF_AT_IFNAME, a->v.ifname); 444 nlattr_add_u32(nw, PF_AT_DYNCNT, a->p.dyncnt); 445 } else if (a->type == PF_ADDR_TABLE) { 446 nlattr_add_string(nw, PF_AT_TABLENAME, a->v.tblname); 447 nlattr_add_u32(nw, PF_AT_TBLCNT, a->p.tblcnt); 448 } 449 450 nlattr_set_len(nw, off); 451 452 return (true); 453 } 454 455 #define _OUT(_field) offsetof(struct pf_rule_addr, _field) 456 static const struct nlattr_parser nla_p_ruleaddr[] = { 457 { .type = PF_RAT_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = nlattr_get_nested }, 458 { .type = PF_RAT_SRC_PORT, .off = _OUT(port[0]), .cb = nlattr_get_uint16 }, 459 { .type = PF_RAT_DST_PORT, .off = _OUT(port[1]), .cb = nlattr_get_uint16 }, 460 { .type = PF_RAT_NEG, .off = _OUT(neg), .cb = nlattr_get_uint8 }, 461 { .type = PF_RAT_OP, .off = _OUT(port_op), .cb = nlattr_get_uint8 }, 462 }; 463 NL_DECLARE_ATTR_PARSER(rule_addr_parser, nla_p_ruleaddr); 464 #undef _OUT 465 466 static bool 467 nlattr_add_rule_addr(struct nl_writer *nw, int attrtype, struct pf_rule_addr *r) 468 { 469 struct pf_addr_wrap aw = {0}; 470 int off = nlattr_add_nested(nw, attrtype); 471 472 bcopy(&(r->addr), &aw, sizeof(struct pf_addr_wrap)); 473 pf_addr_copyout(&aw); 474 475 nlattr_add_addr_wrap(nw, PF_RAT_ADDR, &aw); 476 nlattr_add_u16(nw, PF_RAT_SRC_PORT, r->port[0]); 477 nlattr_add_u16(nw, PF_RAT_DST_PORT, r->port[1]); 478 nlattr_add_u8(nw, PF_RAT_NEG, r->neg); 479 nlattr_add_u8(nw, PF_RAT_OP, r->port_op); 480 481 nlattr_set_len(nw, off); 482 483 return (true); 484 } 485 486 #define _OUT(_field) offsetof(struct pf_mape_portset, _field) 487 static const struct nlattr_parser nla_p_mape_portset[] = { 488 { .type = PF_MET_OFFSET, .off = _OUT(offset), .cb = nlattr_get_uint8 }, 489 { .type = PF_MET_PSID_LEN, .off = _OUT(psidlen), .cb = nlattr_get_uint8 }, 490 {. type = PF_MET_PSID, .off = _OUT(psid), .cb = nlattr_get_uint16 }, 491 }; 492 NL_DECLARE_ATTR_PARSER(mape_portset_parser, nla_p_mape_portset); 493 #undef _OUT 494 495 static bool 496 nlattr_add_mape_portset(struct nl_writer *nw, int attrtype, const struct pf_mape_portset *m) 497 { 498 int off = nlattr_add_nested(nw, attrtype); 499 500 nlattr_add_u8(nw, PF_MET_OFFSET, m->offset); 501 nlattr_add_u8(nw, PF_MET_PSID_LEN, m->psidlen); 502 nlattr_add_u16(nw, PF_MET_PSID, m->psid); 503 504 nlattr_set_len(nw, off); 505 506 return (true); 507 } 508 509 struct nl_parsed_labels 510 { 511 char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 512 uint32_t i; 513 }; 514 515 static int 516 nlattr_get_pf_rule_labels(struct nlattr *nla, struct nl_pstate *npt, 517 const void *arg, void *target) 518 { 519 struct nl_parsed_labels *l = (struct nl_parsed_labels *)target; 520 int ret; 521 522 if (l->i >= PF_RULE_MAX_LABEL_COUNT) 523 return (E2BIG); 524 525 ret = nlattr_get_chara(nla, npt, (void *)PF_RULE_LABEL_SIZE, 526 l->labels[l->i]); 527 if (ret == 0) 528 l->i++; 529 530 return (ret); 531 } 532 533 #define _OUT(_field) offsetof(struct nl_parsed_labels, _field) 534 static const struct nlattr_parser nla_p_labels[] = { 535 { .type = PF_LT_LABEL, .off = 0, .cb = nlattr_get_pf_rule_labels }, 536 }; 537 NL_DECLARE_ATTR_PARSER(rule_labels_parser, nla_p_labels); 538 #undef _OUT 539 540 static int 541 nlattr_get_nested_pf_rule_labels(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target) 542 { 543 struct nl_parsed_labels parsed_labels = { }; 544 int error; 545 546 /* Assumes target points to the beginning of the structure */ 547 error = nl_parse_header(NLA_DATA(nla), NLA_DATA_LEN(nla), &rule_labels_parser, npt, &parsed_labels); 548 if (error != 0) 549 return (error); 550 551 memcpy(target, parsed_labels.labels, sizeof(parsed_labels.labels)); 552 553 return (0); 554 } 555 556 static bool 557 nlattr_add_labels(struct nl_writer *nw, int attrtype, const struct pf_krule *r) 558 { 559 int off = nlattr_add_nested(nw, attrtype); 560 int i = 0; 561 562 while (r->label[i][0] != 0 563 && i < PF_RULE_MAX_LABEL_COUNT) { 564 nlattr_add_string(nw, PF_LT_LABEL, r->label[i]); 565 i++; 566 } 567 568 nlattr_set_len(nw, off); 569 570 return (true); 571 } 572 573 #define _OUT(_field) offsetof(struct pf_kpool, _field) 574 static const struct nlattr_parser nla_p_pool[] = { 575 { .type = PF_PT_KEY, .off = _OUT(key), .arg = (void *)sizeof(struct pf_poolhashkey), .cb = nlattr_get_bytes }, 576 { .type = PF_PT_COUNTER, .off = _OUT(counter), .cb = nlattr_get_in6_addr }, 577 { .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = nlattr_get_uint32 }, 578 { .type = PF_PT_PROXY_SRC_PORT, .off = _OUT(proxy_port[0]), .cb = nlattr_get_uint16 }, 579 { .type = PF_PT_PROXY_DST_PORT, .off = _OUT(proxy_port[1]), .cb = nlattr_get_uint16 }, 580 { .type = PF_PT_OPTS, .off = _OUT(opts), .cb = nlattr_get_uint8 }, 581 { .type = PF_PT_MAPE, .off = _OUT(mape), .arg = &mape_portset_parser, .cb = nlattr_get_nested }, 582 }; 583 NL_DECLARE_ATTR_PARSER(pool_parser, nla_p_pool); 584 #undef _OUT 585 586 static bool 587 nlattr_add_pool(struct nl_writer *nw, int attrtype, const struct pf_kpool *pool) 588 { 589 int off = nlattr_add_nested(nw, attrtype); 590 591 nlattr_add(nw, PF_PT_KEY, sizeof(struct pf_poolhashkey), &pool->key); 592 nlattr_add_in6_addr(nw, PF_PT_COUNTER, (const struct in6_addr *)&pool->counter); 593 nlattr_add_u32(nw, PF_PT_TBLIDX, pool->tblidx); 594 nlattr_add_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]); 595 nlattr_add_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]); 596 nlattr_add_u8(nw, PF_PT_OPTS, pool->opts); 597 nlattr_add_mape_portset(nw, PF_PT_MAPE, &pool->mape); 598 599 nlattr_set_len(nw, off); 600 601 return (true); 602 } 603 604 #define _OUT(_field) offsetof(struct pf_rule_uid, _field) 605 static const struct nlattr_parser nla_p_rule_uid[] = { 606 { .type = PF_RUT_UID_LOW, .off = _OUT(uid[0]), .cb = nlattr_get_uint32 }, 607 { .type = PF_RUT_UID_HIGH, .off = _OUT(uid[1]), .cb = nlattr_get_uint32 }, 608 { .type = PF_RUT_OP, .off = _OUT(op), .cb = nlattr_get_uint8 }, 609 }; 610 NL_DECLARE_ATTR_PARSER(rule_uid_parser, nla_p_rule_uid); 611 #undef _OUT 612 613 static bool 614 nlattr_add_rule_uid(struct nl_writer *nw, int attrtype, const struct pf_rule_uid *u) 615 { 616 int off = nlattr_add_nested(nw, attrtype); 617 618 nlattr_add_u32(nw, PF_RUT_UID_LOW, u->uid[0]); 619 nlattr_add_u32(nw, PF_RUT_UID_HIGH, u->uid[1]); 620 nlattr_add_u8(nw, PF_RUT_OP, u->op); 621 622 nlattr_set_len(nw, off); 623 624 return (true); 625 } 626 627 struct nl_parsed_timeouts 628 { 629 uint32_t timeouts[PFTM_MAX]; 630 uint32_t i; 631 }; 632 633 static int 634 nlattr_get_pf_timeout(struct nlattr *nla, struct nl_pstate *npt, 635 const void *arg, void *target) 636 { 637 struct nl_parsed_timeouts *t = (struct nl_parsed_timeouts *)target; 638 int ret; 639 640 if (t->i >= PFTM_MAX) 641 return (E2BIG); 642 643 ret = nlattr_get_uint32(nla, npt, NULL, &t->timeouts[t->i]); 644 if (ret == 0) 645 t->i++; 646 647 return (ret); 648 } 649 650 #define _OUT(_field) offsetof(struct nl_parsed_timeout, _field) 651 static const struct nlattr_parser nla_p_timeouts[] = { 652 { .type = PF_TT_TIMEOUT, .off = 0, .cb = nlattr_get_pf_timeout }, 653 }; 654 NL_DECLARE_ATTR_PARSER(timeout_parser, nla_p_timeouts); 655 #undef _OUT 656 657 static int 658 nlattr_get_nested_timeouts(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target) 659 { 660 struct nl_parsed_timeouts parsed_timeouts = { }; 661 int error; 662 663 /* Assumes target points to the beginning of the structure */ 664 error = nl_parse_header(NLA_DATA(nla), NLA_DATA_LEN(nla), &timeout_parser, npt, &parsed_timeouts); 665 if (error != 0) 666 return (error); 667 668 memcpy(target, parsed_timeouts.timeouts, sizeof(parsed_timeouts.timeouts)); 669 670 return (0); 671 } 672 673 static bool 674 nlattr_add_timeout(struct nl_writer *nw, int attrtype, uint32_t *timeout) 675 { 676 int off = nlattr_add_nested(nw, attrtype); 677 678 for (int i = 0; i < PFTM_MAX; i++) 679 nlattr_add_u32(nw, PF_RT_TIMEOUT, timeout[i]); 680 681 nlattr_set_len(nw, off); 682 683 return (true); 684 } 685 686 #define _OUT(_field) offsetof(struct pf_kthreshold, _field) 687 static const struct nlattr_parser nla_p_threshold[] = { 688 { .type = PF_TH_LIMIT, .off = _OUT(limit), .cb = nlattr_get_uint32 }, 689 { .type = PF_TH_SECONDS, .off = _OUT(seconds), .cb = nlattr_get_uint32 }, 690 }; 691 NL_DECLARE_ATTR_PARSER(threshold_parser, nla_p_threshold); 692 #undef _OUT 693 694 #define _OUT(_field) offsetof(struct pf_krule, _field) 695 static const struct nlattr_parser nla_p_rule[] = { 696 { .type = PF_RT_SRC, .off = _OUT(src), .arg = &rule_addr_parser,.cb = nlattr_get_nested }, 697 { .type = PF_RT_DST, .off = _OUT(dst), .arg = &rule_addr_parser,.cb = nlattr_get_nested }, 698 { .type = PF_RT_RIDENTIFIER, .off = _OUT(ridentifier), .cb = nlattr_get_uint32 }, 699 { .type = PF_RT_LABELS, .off = _OUT(label), .arg = &rule_labels_parser,.cb = nlattr_get_nested_pf_rule_labels }, 700 { .type = PF_RT_IFNAME, .off = _OUT(ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 701 { .type = PF_RT_QNAME, .off = _OUT(qname), .arg = (void *)PF_QNAME_SIZE, .cb = nlattr_get_chara }, 702 { .type = PF_RT_PQNAME, .off = _OUT(pqname), .arg = (void *)PF_QNAME_SIZE, .cb = nlattr_get_chara }, 703 { .type = PF_RT_TAGNAME, .off = _OUT(tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = nlattr_get_chara }, 704 { .type = PF_RT_MATCH_TAGNAME, .off = _OUT(match_tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = nlattr_get_chara }, 705 { .type = PF_RT_OVERLOAD_TBLNAME, .off = _OUT(overload_tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara }, 706 { .type = PF_RT_RPOOL_RDR, .off = _OUT(rdr), .arg = &pool_parser, .cb = nlattr_get_nested }, 707 { .type = PF_RT_OS_FINGERPRINT, .off = _OUT(os_fingerprint), .cb = nlattr_get_uint32 }, 708 { .type = PF_RT_RTABLEID, .off = _OUT(rtableid), .cb = nlattr_get_uint32 }, 709 { .type = PF_RT_TIMEOUT, .off = _OUT(timeout), .arg = &timeout_parser, .cb = nlattr_get_nested_timeouts }, 710 { .type = PF_RT_MAX_STATES, .off = _OUT(max_states), .cb = nlattr_get_uint32 }, 711 { .type = PF_RT_MAX_SRC_NODES, .off = _OUT(max_src_nodes), .cb = nlattr_get_uint32 }, 712 { .type = PF_RT_MAX_SRC_STATES, .off = _OUT(max_src_states), .cb = nlattr_get_uint32 }, 713 { .type = PF_RT_MAX_SRC_CONN_RATE_LIMIT, .off = _OUT(max_src_conn_rate.limit), .cb = nlattr_get_uint32 }, 714 { .type = PF_RT_MAX_SRC_CONN_RATE_SECS, .off = _OUT(max_src_conn_rate.seconds), .cb = nlattr_get_uint32 }, 715 { .type = PF_RT_DNPIPE, .off = _OUT(dnpipe), .cb = nlattr_get_uint16 }, 716 { .type = PF_RT_DNRPIPE, .off = _OUT(dnrpipe), .cb = nlattr_get_uint16 }, 717 { .type = PF_RT_DNFLAGS, .off = _OUT(free_flags), .cb = nlattr_get_uint32 }, 718 { .type = PF_RT_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 719 { .type = PF_RT_PROB, .off = _OUT(prob), .cb = nlattr_get_uint32 }, 720 { .type = PF_RT_CUID, .off = _OUT(cuid), .cb = nlattr_get_uint32 }, 721 {. type = PF_RT_CPID, .off = _OUT(cpid), .cb = nlattr_get_uint32 }, 722 { .type = PF_RT_RETURN_ICMP, .off = _OUT(return_icmp), .cb = nlattr_get_uint16 }, 723 { .type = PF_RT_RETURN_ICMP6, .off = _OUT(return_icmp6), .cb = nlattr_get_uint16 }, 724 { .type = PF_RT_MAX_MSS, .off = _OUT(max_mss), .cb = nlattr_get_uint16 }, 725 { .type = PF_RT_SCRUB_FLAGS, .off = _OUT(scrub_flags), .cb = nlattr_get_uint16 }, 726 { .type = PF_RT_UID, .off = _OUT(uid), .arg = &rule_uid_parser, .cb = nlattr_get_nested }, 727 { .type = PF_RT_GID, .off = _OUT(gid), .arg = &rule_uid_parser, .cb = nlattr_get_nested }, 728 { .type = PF_RT_RULE_FLAG, .off = _OUT(rule_flag), .cb = nlattr_get_uint32 }, 729 { .type = PF_RT_ACTION, .off = _OUT(action), .cb = nlattr_get_uint8 }, 730 { .type = PF_RT_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 }, 731 { .type = PF_RT_LOG, .off = _OUT(log), .cb = nlattr_get_uint8 }, 732 { .type = PF_RT_LOGIF, .off = _OUT(logif), .cb = nlattr_get_uint8 }, 733 { .type = PF_RT_QUICK, .off = _OUT(quick), .cb = nlattr_get_uint8 }, 734 { .type = PF_RT_IF_NOT, .off = _OUT(ifnot), .cb = nlattr_get_uint8 }, 735 { .type = PF_RT_MATCH_TAG_NOT, .off = _OUT(match_tag_not), .cb = nlattr_get_uint8 }, 736 { .type = PF_RT_NATPASS, .off = _OUT(natpass), .cb = nlattr_get_uint8 }, 737 { .type = PF_RT_KEEP_STATE, .off = _OUT(keep_state), .cb = nlattr_get_uint8 }, 738 { .type = PF_RT_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 739 { .type = PF_RT_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 }, 740 { .type = PF_RT_TYPE, .off = _OUT(type), .cb = nlattr_get_uint8 }, 741 { .type = PF_RT_CODE, .off = _OUT(code), .cb = nlattr_get_uint8 }, 742 { .type = PF_RT_FLAGS, .off = _OUT(flags), .cb = nlattr_get_uint8 }, 743 { .type = PF_RT_FLAGSET, .off = _OUT(flagset), .cb = nlattr_get_uint8 }, 744 { .type = PF_RT_MIN_TTL, .off = _OUT(min_ttl), .cb = nlattr_get_uint8 }, 745 { .type = PF_RT_ALLOW_OPTS, .off = _OUT(allow_opts), .cb = nlattr_get_uint8 }, 746 { .type = PF_RT_RT, .off = _OUT(rt), .cb = nlattr_get_uint8 }, 747 { .type = PF_RT_RETURN_TTL, .off = _OUT(return_ttl), .cb = nlattr_get_uint8 }, 748 { .type = PF_RT_TOS, .off = _OUT(tos), .cb = nlattr_get_uint8 }, 749 { .type = PF_RT_SET_TOS, .off = _OUT(set_tos), .cb = nlattr_get_uint8 }, 750 { .type = PF_RT_ANCHOR_RELATIVE, .off = _OUT(anchor_relative), .cb = nlattr_get_uint8 }, 751 { .type = PF_RT_ANCHOR_WILDCARD, .off = _OUT(anchor_wildcard), .cb = nlattr_get_uint8 }, 752 { .type = PF_RT_FLUSH, .off = _OUT(flush), .cb = nlattr_get_uint8 }, 753 { .type = PF_RT_PRIO, .off = _OUT(prio), .cb = nlattr_get_uint8 }, 754 { .type = PF_RT_SET_PRIO, .off = _OUT(set_prio[0]), .cb = nlattr_get_uint8 }, 755 { .type = PF_RT_SET_PRIO_REPLY, .off = _OUT(set_prio[1]), .cb = nlattr_get_uint8 }, 756 { .type = PF_RT_DIVERT_ADDRESS, .off = _OUT(divert.addr), .cb = nlattr_get_in6_addr }, 757 { .type = PF_RT_DIVERT_PORT, .off = _OUT(divert.port), .cb = nlattr_get_uint16 }, 758 { .type = PF_RT_RCV_IFNAME, .off = _OUT(rcv_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 759 { .type = PF_RT_MAX_SRC_CONN, .off = _OUT(max_src_conn), .cb = nlattr_get_uint32 }, 760 { .type = PF_RT_RPOOL_NAT, .off = _OUT(nat), .arg = &pool_parser, .cb = nlattr_get_nested }, 761 { .type = PF_RT_NAF, .off = _OUT(naf), .cb = nlattr_get_uint8 }, 762 { .type = PF_RT_RPOOL_RT, .off = _OUT(route), .arg = &pool_parser, .cb = nlattr_get_nested }, 763 { .type = PF_RT_RCV_IFNOT, .off = _OUT(rcvifnot), .cb = nlattr_get_bool }, 764 { .type = PF_RT_PKTRATE, .off = _OUT(pktrate), .arg = &threshold_parser, .cb = nlattr_get_nested }, 765 { .type = PF_RT_MAX_PKT_SIZE, .off = _OUT(max_pkt_size), .cb = nlattr_get_uint16 }, 766 }; 767 NL_DECLARE_ATTR_PARSER(rule_parser, nla_p_rule); 768 #undef _OUT 769 struct nl_parsed_addrule { 770 struct pf_krule *rule; 771 uint32_t ticket; 772 uint32_t pool_ticket; 773 char *anchor; 774 char *anchor_call; 775 }; 776 #define _OUT(_field) offsetof(struct nl_parsed_addrule, _field) 777 static const struct nlattr_parser nla_p_addrule[] = { 778 { .type = PF_ART_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, 779 { .type = PF_ART_POOL_TICKET, .off = _OUT(pool_ticket), .cb = nlattr_get_uint32 }, 780 { .type = PF_ART_ANCHOR, .off = _OUT(anchor), .cb = nlattr_get_string }, 781 { .type = PF_ART_ANCHOR_CALL, .off = _OUT(anchor_call), .cb = nlattr_get_string }, 782 { .type = PF_ART_RULE, .off = _OUT(rule), .arg = &rule_parser, .cb = nlattr_get_nested_ptr } 783 }; 784 #undef _OUT 785 NL_DECLARE_PARSER(addrule_parser, struct genlmsghdr, nlf_p_empty, nla_p_addrule); 786 787 static int 788 pf_handle_addrule(struct nlmsghdr *hdr, struct nl_pstate *npt) 789 { 790 int error; 791 struct nl_parsed_addrule attrs = {}; 792 793 attrs.rule = pf_krule_alloc(); 794 795 error = nl_parse_nlmsg(hdr, &addrule_parser, npt, &attrs); 796 if (error != 0) { 797 pf_free_rule(attrs.rule); 798 return (error); 799 } 800 801 error = pf_ioctl_addrule(attrs.rule, attrs.ticket, attrs.pool_ticket, 802 attrs.anchor, attrs.anchor_call, nlp_get_cred(npt->nlp)->cr_uid, 803 hdr->nlmsg_pid); 804 805 return (error); 806 } 807 808 #define _OUT(_field) offsetof(struct pfioc_rule, _field) 809 static const struct nlattr_parser nla_p_getrules[] = { 810 { .type = PF_GR_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 811 { .type = PF_GR_ACTION, .off = _OUT(rule.action), .cb = nlattr_get_uint8 }, 812 }; 813 #undef _OUT 814 NL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, nlf_p_empty, nla_p_getrules); 815 816 static int 817 pf_handle_getrules(struct nlmsghdr *hdr, struct nl_pstate *npt) 818 { 819 struct pfioc_rule attrs = {}; 820 int error; 821 struct nl_writer *nw = npt->nw; 822 struct genlmsghdr *ghdr_new; 823 824 error = nl_parse_nlmsg(hdr, &getrules_parser, npt, &attrs); 825 if (error != 0) 826 return (error); 827 828 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 829 return (ENOMEM); 830 831 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 832 ghdr_new->cmd = PFNL_CMD_GETRULES; 833 ghdr_new->version = 0; 834 ghdr_new->reserved = 0; 835 836 error = pf_ioctl_getrules(&attrs); 837 if (error != 0) 838 goto out; 839 840 nlattr_add_u32(nw, PF_GR_NR, attrs.nr); 841 nlattr_add_u32(nw, PF_GR_TICKET, attrs.ticket); 842 843 if (!nlmsg_end(nw)) { 844 error = ENOMEM; 845 goto out; 846 } 847 848 return (0); 849 850 out: 851 nlmsg_abort(nw); 852 return (error); 853 } 854 855 struct nl_parsed_get_rule { 856 char anchor[MAXPATHLEN]; 857 uint8_t action; 858 uint32_t nr; 859 uint32_t ticket; 860 uint8_t clear; 861 }; 862 #define _OUT(_field) offsetof(struct nl_parsed_get_rule, _field) 863 static const struct nlattr_parser nla_p_getrule[] = { 864 { .type = PF_GR_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 865 { .type = PF_GR_ACTION, .off = _OUT(action), .cb = nlattr_get_uint8 }, 866 { .type = PF_GR_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 867 { .type = PF_GR_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, 868 { .type = PF_GR_CLEAR, .off = _OUT(clear), .cb = nlattr_get_uint8 }, 869 }; 870 #undef _OUT 871 NL_DECLARE_PARSER(getrule_parser, struct genlmsghdr, nlf_p_empty, nla_p_getrule); 872 873 static int 874 pf_handle_getrule(struct nlmsghdr *hdr, struct nl_pstate *npt) 875 { 876 char anchor_call[MAXPATHLEN]; 877 struct nl_parsed_get_rule attrs = {}; 878 struct nl_writer *nw = npt->nw; 879 struct genlmsghdr *ghdr_new; 880 struct pf_kruleset *ruleset; 881 struct pf_krule *rule; 882 u_int64_t src_nodes_total = 0; 883 int rs_num; 884 int error; 885 886 error = nl_parse_nlmsg(hdr, &getrule_parser, npt, &attrs); 887 if (error != 0) 888 return (error); 889 890 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 891 return (ENOMEM); 892 893 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 894 ghdr_new->cmd = PFNL_CMD_GETRULE; 895 ghdr_new->version = 0; 896 ghdr_new->reserved = 0; 897 898 PF_RULES_WLOCK(); 899 ruleset = pf_find_kruleset(attrs.anchor); 900 if (ruleset == NULL) { 901 PF_RULES_WUNLOCK(); 902 error = ENOENT; 903 goto out; 904 } 905 906 rs_num = pf_get_ruleset_number(attrs.action); 907 if (rs_num >= PF_RULESET_MAX) { 908 PF_RULES_WUNLOCK(); 909 error = EINVAL; 910 goto out; 911 } 912 913 if (attrs.ticket != ruleset->rules[rs_num].active.ticket) { 914 PF_RULES_WUNLOCK(); 915 error = EBUSY; 916 goto out; 917 } 918 919 rule = TAILQ_FIRST(ruleset->rules[rs_num].active.ptr); 920 while ((rule != NULL) && (rule->nr != attrs.nr)) 921 rule = TAILQ_NEXT(rule, entries); 922 if (rule == NULL) { 923 PF_RULES_WUNLOCK(); 924 error = EBUSY; 925 goto out; 926 } 927 928 nlattr_add_rule_addr(nw, PF_RT_SRC, &rule->src); 929 nlattr_add_rule_addr(nw, PF_RT_DST, &rule->dst); 930 nlattr_add_u32(nw, PF_RT_RIDENTIFIER, rule->ridentifier); 931 nlattr_add_labels(nw, PF_RT_LABELS, rule); 932 nlattr_add_string(nw, PF_RT_IFNAME, rule->ifname); 933 nlattr_add_string(nw, PF_RT_QNAME, rule->qname); 934 nlattr_add_string(nw, PF_RT_PQNAME, rule->pqname); 935 nlattr_add_string(nw, PF_RT_TAGNAME, rule->tagname); 936 nlattr_add_string(nw, PF_RT_MATCH_TAGNAME, rule->match_tagname); 937 nlattr_add_string(nw, PF_RT_OVERLOAD_TBLNAME, rule->overload_tblname); 938 nlattr_add_pool(nw, PF_RT_RPOOL_RDR, &rule->rdr); 939 nlattr_add_pool(nw, PF_RT_RPOOL_NAT, &rule->nat); 940 nlattr_add_pool(nw, PF_RT_RPOOL_RT, &rule->route); 941 nlattr_add_u32(nw, PF_RT_OS_FINGERPRINT, rule->os_fingerprint); 942 nlattr_add_u32(nw, PF_RT_RTABLEID, rule->rtableid); 943 nlattr_add_timeout(nw, PF_RT_TIMEOUT, rule->timeout); 944 nlattr_add_u32(nw, PF_RT_MAX_STATES, rule->max_states); 945 nlattr_add_u32(nw, PF_RT_MAX_SRC_NODES, rule->max_src_nodes); 946 nlattr_add_u32(nw, PF_RT_MAX_SRC_STATES, rule->max_src_states); 947 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN, rule->max_src_conn); 948 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, rule->max_src_conn_rate.limit); 949 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, rule->max_src_conn_rate.seconds); 950 nlattr_add_u16(nw, PF_RT_MAX_PKT_SIZE, rule->max_pkt_size); 951 952 nlattr_add_u16(nw, PF_RT_DNPIPE, rule->dnpipe); 953 nlattr_add_u16(nw, PF_RT_DNRPIPE, rule->dnrpipe); 954 nlattr_add_u32(nw, PF_RT_DNFLAGS, rule->free_flags); 955 956 nlattr_add_u32(nw, PF_RT_NR, rule->nr); 957 nlattr_add_u32(nw, PF_RT_PROB, rule->prob); 958 nlattr_add_u32(nw, PF_RT_CUID, rule->cuid); 959 nlattr_add_u32(nw, PF_RT_CPID, rule->cpid); 960 961 nlattr_add_u16(nw, PF_RT_RETURN_ICMP, rule->return_icmp); 962 nlattr_add_u16(nw, PF_RT_RETURN_ICMP6, rule->return_icmp6); 963 nlattr_add_u16(nw, PF_RT_RETURN_ICMP6, rule->return_icmp6); 964 nlattr_add_u16(nw, PF_RT_MAX_MSS, rule->max_mss); 965 nlattr_add_u16(nw, PF_RT_SCRUB_FLAGS, rule->scrub_flags); 966 967 nlattr_add_rule_uid(nw, PF_RT_UID, &rule->uid); 968 nlattr_add_rule_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&rule->gid); 969 970 nlattr_add_string(nw, PF_RT_RCV_IFNAME, rule->rcv_ifname); 971 nlattr_add_bool(nw, PF_RT_RCV_IFNOT, rule->rcvifnot); 972 973 nlattr_add_u32(nw, PF_RT_RULE_FLAG, rule->rule_flag); 974 nlattr_add_u8(nw, PF_RT_ACTION, rule->action); 975 nlattr_add_u8(nw, PF_RT_DIRECTION, rule->direction); 976 nlattr_add_u8(nw, PF_RT_LOG, rule->log); 977 nlattr_add_u8(nw, PF_RT_LOGIF, rule->logif); 978 nlattr_add_u8(nw, PF_RT_QUICK, rule->quick); 979 nlattr_add_u8(nw, PF_RT_IF_NOT, rule->ifnot); 980 nlattr_add_u8(nw, PF_RT_MATCH_TAG_NOT, rule->match_tag_not); 981 nlattr_add_u8(nw, PF_RT_NATPASS, rule->natpass); 982 nlattr_add_u8(nw, PF_RT_KEEP_STATE, rule->keep_state); 983 984 nlattr_add_u8(nw, PF_RT_AF, rule->af); 985 nlattr_add_u8(nw, PF_RT_NAF, rule->naf); 986 nlattr_add_u8(nw, PF_RT_PROTO, rule->proto); 987 nlattr_add_u8(nw, PF_RT_TYPE, rule->type); 988 nlattr_add_u8(nw, PF_RT_CODE, rule->code); 989 nlattr_add_u8(nw, PF_RT_FLAGS, rule->flags); 990 nlattr_add_u8(nw, PF_RT_FLAGSET, rule->flagset); 991 nlattr_add_u8(nw, PF_RT_MIN_TTL, rule->min_ttl); 992 nlattr_add_u8(nw, PF_RT_ALLOW_OPTS, rule->allow_opts); 993 nlattr_add_u8(nw, PF_RT_RT, rule->rt); 994 nlattr_add_u8(nw, PF_RT_RETURN_TTL, rule->return_ttl); 995 nlattr_add_u8(nw, PF_RT_TOS, rule->tos); 996 nlattr_add_u8(nw, PF_RT_SET_TOS, rule->set_tos); 997 nlattr_add_u8(nw, PF_RT_ANCHOR_RELATIVE, rule->anchor_relative); 998 nlattr_add_u8(nw, PF_RT_ANCHOR_WILDCARD, rule->anchor_wildcard); 999 nlattr_add_u8(nw, PF_RT_FLUSH, rule->flush); 1000 nlattr_add_u8(nw, PF_RT_PRIO, rule->prio); 1001 nlattr_add_u8(nw, PF_RT_SET_PRIO, rule->set_prio[0]); 1002 nlattr_add_u8(nw, PF_RT_SET_PRIO_REPLY, rule->set_prio[1]); 1003 1004 nlattr_add_in6_addr(nw, PF_RT_DIVERT_ADDRESS, &rule->divert.addr.v6); 1005 nlattr_add_u16(nw, PF_RT_DIVERT_PORT, rule->divert.port); 1006 1007 nlattr_add_u64(nw, PF_RT_PACKETS_IN, pf_counter_u64_fetch(&rule->packets[0])); 1008 nlattr_add_u64(nw, PF_RT_PACKETS_OUT, pf_counter_u64_fetch(&rule->packets[1])); 1009 nlattr_add_u64(nw, PF_RT_BYTES_IN, pf_counter_u64_fetch(&rule->bytes[0])); 1010 nlattr_add_u64(nw, PF_RT_BYTES_OUT, pf_counter_u64_fetch(&rule->bytes[1])); 1011 nlattr_add_u64(nw, PF_RT_EVALUATIONS, pf_counter_u64_fetch(&rule->evaluations)); 1012 nlattr_add_u64(nw, PF_RT_TIMESTAMP, pf_get_timestamp(rule)); 1013 nlattr_add_u64(nw, PF_RT_STATES_CUR, counter_u64_fetch(rule->states_cur)); 1014 nlattr_add_u64(nw, PF_RT_STATES_TOTAL, counter_u64_fetch(rule->states_tot)); 1015 for (pf_sn_types_t sn_type=0; sn_type<PF_SN_MAX; sn_type++) 1016 src_nodes_total += counter_u64_fetch(rule->src_nodes[sn_type]); 1017 nlattr_add_u64(nw, PF_RT_SRC_NODES, src_nodes_total); 1018 nlattr_add_u64(nw, PF_RT_SRC_NODES_LIMIT, counter_u64_fetch(rule->src_nodes[PF_SN_LIMIT])); 1019 nlattr_add_u64(nw, PF_RT_SRC_NODES_NAT, counter_u64_fetch(rule->src_nodes[PF_SN_NAT])); 1020 nlattr_add_u64(nw, PF_RT_SRC_NODES_ROUTE, counter_u64_fetch(rule->src_nodes[PF_SN_ROUTE])); 1021 nlattr_add_pf_threshold(nw, PF_RT_PKTRATE, &rule->pktrate); 1022 1023 error = pf_kanchor_copyout(ruleset, rule, anchor_call, sizeof(anchor_call)); 1024 MPASS(error == 0); 1025 1026 nlattr_add_string(nw, PF_RT_ANCHOR_CALL, anchor_call); 1027 1028 if (attrs.clear) 1029 pf_krule_clear_counters(rule); 1030 1031 PF_RULES_WUNLOCK(); 1032 1033 if (!nlmsg_end(nw)) { 1034 error = ENOMEM; 1035 goto out; 1036 } 1037 1038 return (0); 1039 out: 1040 nlmsg_abort(nw); 1041 return (error); 1042 } 1043 1044 #define _OUT(_field) offsetof(struct pf_kstate_kill, _field) 1045 static const struct nlattr_parser nla_p_clear_states[] = { 1046 { .type = PF_CS_CMP_ID, .off = _OUT(psk_pfcmp.id), .cb = nlattr_get_uint64 }, 1047 { .type = PF_CS_CMP_CREATORID, .off = _OUT(psk_pfcmp.creatorid), .cb = nlattr_get_uint32 }, 1048 { .type = PF_CS_CMP_DIR, .off = _OUT(psk_pfcmp.direction), .cb = nlattr_get_uint8 }, 1049 { .type = PF_CS_AF, .off = _OUT(psk_af), .cb = nlattr_get_uint8 }, 1050 { .type = PF_CS_PROTO, .off = _OUT(psk_proto), .cb = nlattr_get_uint8 }, 1051 { .type = PF_CS_SRC, .off = _OUT(psk_src), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, 1052 { .type = PF_CS_DST, .off = _OUT(psk_dst), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, 1053 { .type = PF_CS_RT_ADDR, .off = _OUT(psk_rt_addr), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, 1054 { .type = PF_CS_IFNAME, .off = _OUT(psk_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 1055 { .type = PF_CS_LABEL, .off = _OUT(psk_label), .arg = (void *)PF_RULE_LABEL_SIZE, .cb = nlattr_get_chara }, 1056 { .type = PF_CS_KILL_MATCH, .off = _OUT(psk_kill_match), .cb = nlattr_get_bool }, 1057 { .type = PF_CS_NAT, .off = _OUT(psk_nat), .cb = nlattr_get_bool }, 1058 }; 1059 #undef _OUT 1060 NL_DECLARE_PARSER(clear_states_parser, struct genlmsghdr, nlf_p_empty, nla_p_clear_states); 1061 1062 static int 1063 pf_handle_killclear_states(struct nlmsghdr *hdr, struct nl_pstate *npt, int cmd) 1064 { 1065 struct pf_kstate_kill kill = {}; 1066 struct epoch_tracker et; 1067 struct nl_writer *nw = npt->nw; 1068 struct genlmsghdr *ghdr_new; 1069 int error; 1070 unsigned int killed = 0; 1071 1072 error = nl_parse_nlmsg(hdr, &clear_states_parser, npt, &kill); 1073 if (error != 0) 1074 return (error); 1075 1076 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1077 return (ENOMEM); 1078 1079 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1080 ghdr_new->cmd = cmd; 1081 ghdr_new->version = 0; 1082 ghdr_new->reserved = 0; 1083 1084 NET_EPOCH_ENTER(et); 1085 if (cmd == PFNL_CMD_KILLSTATES) 1086 pf_killstates(&kill, &killed); 1087 else 1088 killed = pf_clear_states(&kill); 1089 NET_EPOCH_EXIT(et); 1090 1091 nlattr_add_u32(nw, PF_CS_KILLED, killed); 1092 1093 if (! nlmsg_end(nw)) { 1094 error = ENOMEM; 1095 goto out; 1096 } 1097 1098 return (0); 1099 1100 out: 1101 nlmsg_abort(nw); 1102 return (error); 1103 } 1104 1105 static int 1106 pf_handle_clear_states(struct nlmsghdr *hdr, struct nl_pstate *npt) 1107 { 1108 return (pf_handle_killclear_states(hdr, npt, PFNL_CMD_CLRSTATES)); 1109 } 1110 1111 static int 1112 pf_handle_kill_states(struct nlmsghdr *hdr, struct nl_pstate *npt) 1113 { 1114 return (pf_handle_killclear_states(hdr, npt, PFNL_CMD_KILLSTATES)); 1115 } 1116 1117 struct nl_parsed_set_statusif { 1118 char ifname[IFNAMSIZ]; 1119 }; 1120 #define _OUT(_field) offsetof(struct nl_parsed_set_statusif, _field) 1121 static const struct nlattr_parser nla_p_set_statusif[] = { 1122 { .type = PF_SS_IFNAME, .off = _OUT(ifname), .arg = (const void *)IFNAMSIZ, .cb = nlattr_get_chara }, 1123 }; 1124 #undef _OUT 1125 NL_DECLARE_PARSER(set_statusif_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_statusif); 1126 1127 static int 1128 pf_handle_set_statusif(struct nlmsghdr *hdr, struct nl_pstate *npt) 1129 { 1130 int error; 1131 struct nl_parsed_set_statusif attrs = {}; 1132 1133 error = nl_parse_nlmsg(hdr, &set_statusif_parser, npt, &attrs); 1134 if (error != 0) 1135 return (error); 1136 1137 PF_RULES_WLOCK(); 1138 strlcpy(V_pf_status.ifname, attrs.ifname, IFNAMSIZ); 1139 PF_RULES_WUNLOCK(); 1140 1141 return (0); 1142 } 1143 1144 static bool 1145 nlattr_add_counters(struct nl_writer *nw, int attr, size_t number, char **names, 1146 counter_u64_t *counters) 1147 { 1148 for (int i = 0; i < number; i++) { 1149 int off = nlattr_add_nested(nw, attr); 1150 nlattr_add_u32(nw, PF_C_ID, i); 1151 nlattr_add_string(nw, PF_C_NAME, names[i]); 1152 nlattr_add_u64(nw, PF_C_COUNTER, counter_u64_fetch(counters[i])); 1153 nlattr_set_len(nw, off); 1154 } 1155 1156 return (true); 1157 } 1158 1159 static bool 1160 nlattr_add_fcounters(struct nl_writer *nw, int attr, size_t number, char **names, 1161 struct pf_counter_u64 *counters) 1162 { 1163 for (int i = 0; i < number; i++) { 1164 int off = nlattr_add_nested(nw, attr); 1165 nlattr_add_u32(nw, PF_C_ID, i); 1166 nlattr_add_string(nw, PF_C_NAME, names[i]); 1167 nlattr_add_u64(nw, PF_C_COUNTER, pf_counter_u64_fetch(&counters[i])); 1168 nlattr_set_len(nw, off); 1169 } 1170 1171 return (true); 1172 } 1173 1174 static bool 1175 nlattr_add_u64_array(struct nl_writer *nw, int attr, size_t number, uint64_t *array) 1176 { 1177 int off = nlattr_add_nested(nw, attr); 1178 1179 for (size_t i = 0; i < number; i++) 1180 nlattr_add_u64(nw, 0, array[i]); 1181 1182 nlattr_set_len(nw, off); 1183 1184 return (true); 1185 } 1186 1187 static int 1188 pf_handle_get_status(struct nlmsghdr *hdr, struct nl_pstate *npt) 1189 { 1190 struct pf_status s; 1191 struct nl_writer *nw = npt->nw; 1192 struct genlmsghdr *ghdr_new; 1193 char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES; 1194 char *pf_lcounter[KLCNT_MAX+1] = KLCNT_NAMES; 1195 char *pf_fcounter[FCNT_MAX+1] = FCNT_NAMES; 1196 time_t since; 1197 int error; 1198 1199 PF_RULES_RLOCK_TRACKER; 1200 1201 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1202 return (ENOMEM); 1203 1204 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1205 ghdr_new->cmd = PFNL_CMD_GET_STATUS; 1206 ghdr_new->version = 0; 1207 ghdr_new->reserved = 0; 1208 1209 since = time_second - (time_uptime - V_pf_status.since); 1210 1211 PF_RULES_RLOCK(); 1212 1213 nlattr_add_string(nw, PF_GS_IFNAME, V_pf_status.ifname); 1214 nlattr_add_bool(nw, PF_GS_RUNNING, V_pf_status.running); 1215 nlattr_add_u32(nw, PF_GS_SINCE, since); 1216 nlattr_add_u32(nw, PF_GS_DEBUG, V_pf_status.debug); 1217 nlattr_add_u32(nw, PF_GS_HOSTID, ntohl(V_pf_status.hostid)); 1218 nlattr_add_u32(nw, PF_GS_STATES, V_pf_status.states); 1219 nlattr_add_u32(nw, PF_GS_SRC_NODES, V_pf_status.src_nodes); 1220 nlattr_add_u32(nw, PF_GS_REASSEMBLE, V_pf_status.reass); 1221 nlattr_add_u32(nw, PF_GS_SYNCOOKIES_ACTIVE, V_pf_status.syncookies_active); 1222 1223 nlattr_add_counters(nw, PF_GS_COUNTERS, PFRES_MAX, pf_reasons, 1224 V_pf_status.counters); 1225 nlattr_add_counters(nw, PF_GS_LCOUNTERS, KLCNT_MAX, pf_lcounter, 1226 V_pf_status.lcounters); 1227 nlattr_add_fcounters(nw, PF_GS_FCOUNTERS, FCNT_MAX, pf_fcounter, 1228 V_pf_status.fcounters); 1229 nlattr_add_counters(nw, PF_GS_SCOUNTERS, SCNT_MAX, pf_fcounter, 1230 V_pf_status.scounters); 1231 1232 pfi_update_status(V_pf_status.ifname, &s); 1233 nlattr_add_u64_array(nw, PF_GS_BCOUNTERS, 2 * 2, (uint64_t *)s.bcounters); 1234 nlattr_add_u64_array(nw, PF_GS_PCOUNTERS, 2 * 2 * 2, (uint64_t *)s.pcounters); 1235 1236 nlattr_add(nw, PF_GS_CHKSUM, PF_MD5_DIGEST_LENGTH, V_pf_status.pf_chksum); 1237 1238 PF_RULES_RUNLOCK(); 1239 1240 if (!nlmsg_end(nw)) { 1241 error = ENOMEM; 1242 goto out; 1243 } 1244 1245 return (0); 1246 1247 out: 1248 nlmsg_abort(nw); 1249 return (error); 1250 } 1251 1252 static int 1253 pf_handle_clear_status(struct nlmsghdr *hdr, struct nl_pstate *npt) 1254 { 1255 pf_ioctl_clear_status(); 1256 1257 return (0); 1258 } 1259 1260 #define _OUT(_field) offsetof(struct pfioc_natlook, _field) 1261 static const struct nlattr_parser nla_p_natlook[] = { 1262 { .type = PF_NL_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 1263 { .type = PF_NL_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 }, 1264 { .type = PF_NL_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 }, 1265 { .type = PF_NL_SRC_ADDR, .off = _OUT(saddr), .cb = nlattr_get_in6_addr }, 1266 { .type = PF_NL_DST_ADDR, .off = _OUT(daddr), .cb = nlattr_get_in6_addr }, 1267 { .type = PF_NL_SRC_PORT, .off = _OUT(sport), .cb = nlattr_get_uint16 }, 1268 { .type = PF_NL_DST_PORT, .off = _OUT(dport), .cb = nlattr_get_uint16 }, 1269 }; 1270 #undef _OUT 1271 NL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, nlf_p_empty, nla_p_natlook); 1272 1273 static int 1274 pf_handle_natlook(struct nlmsghdr *hdr, struct nl_pstate *npt) 1275 { 1276 struct pfioc_natlook attrs = {}; 1277 struct nl_writer *nw = npt->nw; 1278 struct genlmsghdr *ghdr_new; 1279 int error; 1280 1281 error = nl_parse_nlmsg(hdr, &natlook_parser, npt, &attrs); 1282 if (error != 0) 1283 return (error); 1284 1285 error = pf_ioctl_natlook(&attrs); 1286 if (error != 0) 1287 return (error); 1288 1289 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1290 return (ENOMEM); 1291 1292 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1293 ghdr_new->cmd = PFNL_CMD_NATLOOK; 1294 ghdr_new->version = 0; 1295 ghdr_new->reserved = 0; 1296 1297 nlattr_add_in6_addr(nw, PF_NL_SRC_ADDR, &attrs.rsaddr.v6); 1298 nlattr_add_in6_addr(nw, PF_NL_DST_ADDR, &attrs.rdaddr.v6); 1299 nlattr_add_u16(nw, PF_NL_SRC_PORT, attrs.rsport); 1300 nlattr_add_u16(nw, PF_NL_DST_PORT, attrs.rdport); 1301 1302 if (!nlmsg_end(nw)) { 1303 nlmsg_abort(nw); 1304 return (ENOMEM); 1305 } 1306 1307 return (0); 1308 } 1309 1310 struct pf_nl_set_debug 1311 { 1312 uint32_t level; 1313 }; 1314 #define _OUT(_field) offsetof(struct pf_nl_set_debug, _field) 1315 static const struct nlattr_parser nla_p_set_debug[] = { 1316 { .type = PF_SD_LEVEL, .off = _OUT(level), .cb = nlattr_get_uint32 }, 1317 }; 1318 #undef _OUT 1319 NL_DECLARE_PARSER(set_debug_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_debug); 1320 1321 static int 1322 pf_handle_set_debug(struct nlmsghdr *hdr, struct nl_pstate *npt) 1323 { 1324 struct pf_nl_set_debug attrs = {}; 1325 int error; 1326 1327 error = nl_parse_nlmsg(hdr, &set_debug_parser, npt, &attrs); 1328 if (error != 0) 1329 return (error); 1330 1331 PF_RULES_WLOCK(); 1332 V_pf_status.debug = attrs.level; 1333 PF_RULES_WUNLOCK(); 1334 1335 return (0); 1336 } 1337 1338 struct pf_nl_set_timeout 1339 { 1340 uint32_t timeout; 1341 uint32_t seconds; 1342 }; 1343 #define _OUT(_field) offsetof(struct pf_nl_set_timeout, _field) 1344 static const struct nlattr_parser nla_p_set_timeout[] = { 1345 { .type = PF_TO_TIMEOUT, .off = _OUT(timeout), .cb = nlattr_get_uint32 }, 1346 { .type = PF_TO_SECONDS, .off = _OUT(seconds), .cb = nlattr_get_uint32 }, 1347 }; 1348 #undef _OUT 1349 NL_DECLARE_PARSER(set_timeout_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_timeout); 1350 1351 static int 1352 pf_handle_set_timeout(struct nlmsghdr *hdr, struct nl_pstate *npt) 1353 { 1354 struct pf_nl_set_timeout attrs = {}; 1355 int error; 1356 1357 error = nl_parse_nlmsg(hdr, &set_timeout_parser, npt, &attrs); 1358 if (error != 0) 1359 return (error); 1360 1361 return (pf_ioctl_set_timeout(attrs.timeout, attrs.seconds, NULL)); 1362 } 1363 1364 static int 1365 pf_handle_get_timeout(struct nlmsghdr *hdr, struct nl_pstate *npt) 1366 { 1367 struct pf_nl_set_timeout attrs = {}; 1368 struct nl_writer *nw = npt->nw; 1369 struct genlmsghdr *ghdr_new; 1370 int error; 1371 1372 error = nl_parse_nlmsg(hdr, &set_timeout_parser, npt, &attrs); 1373 if (error != 0) 1374 return (error); 1375 1376 error = pf_ioctl_get_timeout(attrs.timeout, &attrs.seconds); 1377 if (error != 0) 1378 return (error); 1379 1380 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1381 return (ENOMEM); 1382 1383 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1384 ghdr_new->cmd = PFNL_CMD_GET_TIMEOUT; 1385 ghdr_new->version = 0; 1386 ghdr_new->reserved = 0; 1387 1388 nlattr_add_u32(nw, PF_TO_SECONDS, attrs.seconds); 1389 1390 if (!nlmsg_end(nw)) { 1391 nlmsg_abort(nw); 1392 return (ENOMEM); 1393 } 1394 1395 return (0); 1396 } 1397 1398 struct pf_nl_set_limit 1399 { 1400 uint32_t index; 1401 uint32_t limit; 1402 }; 1403 #define _OUT(_field) offsetof(struct pf_nl_set_limit, _field) 1404 static const struct nlattr_parser nla_p_set_limit[] = { 1405 { .type = PF_LI_INDEX, .off = _OUT(index), .cb = nlattr_get_uint32 }, 1406 { .type = PF_LI_LIMIT, .off = _OUT(limit), .cb = nlattr_get_uint32 }, 1407 }; 1408 #undef _OUT 1409 NL_DECLARE_PARSER(set_limit_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_limit); 1410 1411 static int 1412 pf_handle_set_limit(struct nlmsghdr *hdr, struct nl_pstate *npt) 1413 { 1414 struct pf_nl_set_limit attrs = {}; 1415 int error; 1416 1417 error = nl_parse_nlmsg(hdr, &set_limit_parser, npt, &attrs); 1418 if (error != 0) 1419 return (error); 1420 1421 return (pf_ioctl_set_limit(attrs.index, attrs.limit, NULL)); 1422 } 1423 1424 static int 1425 pf_handle_get_limit(struct nlmsghdr *hdr, struct nl_pstate *npt) 1426 { 1427 struct pf_nl_set_limit attrs = {}; 1428 struct nl_writer *nw = npt->nw; 1429 struct genlmsghdr *ghdr_new; 1430 int error; 1431 1432 error = nl_parse_nlmsg(hdr, &set_limit_parser, npt, &attrs); 1433 if (error != 0) 1434 return (error); 1435 1436 error = pf_ioctl_get_limit(attrs.index, &attrs.limit); 1437 if (error != 0) 1438 return (error); 1439 1440 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1441 return (ENOMEM); 1442 1443 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1444 ghdr_new->cmd = PFNL_CMD_GET_LIMIT; 1445 ghdr_new->version = 0; 1446 ghdr_new->reserved = 0; 1447 1448 nlattr_add_u32(nw, PF_LI_LIMIT, attrs.limit); 1449 1450 if (!nlmsg_end(nw)) { 1451 nlmsg_abort(nw); 1452 return (ENOMEM); 1453 } 1454 1455 return (0); 1456 } 1457 1458 static int 1459 pf_handle_begin_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) 1460 { 1461 struct nl_writer *nw = npt->nw; 1462 struct genlmsghdr *ghdr_new; 1463 uint32_t ticket; 1464 int error; 1465 1466 error = pf_ioctl_begin_addrs(&ticket); 1467 if (error != 0) 1468 return (error); 1469 1470 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1471 return (ENOMEM); 1472 1473 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1474 ghdr_new->cmd = PFNL_CMD_BEGIN_ADDRS; 1475 ghdr_new->version = 0; 1476 ghdr_new->reserved = 0; 1477 1478 nlattr_add_u32(nw, PF_BA_TICKET, ticket); 1479 1480 if (!nlmsg_end(nw)) { 1481 nlmsg_abort(nw); 1482 return (ENOMEM); 1483 } 1484 1485 return (0); 1486 } 1487 1488 static bool 1489 nlattr_add_pool_addr(struct nl_writer *nw, int attrtype, struct pf_pooladdr *a) 1490 { 1491 int off; 1492 1493 off = nlattr_add_nested(nw, attrtype); 1494 1495 nlattr_add_addr_wrap(nw, PF_PA_ADDR, &a->addr); 1496 nlattr_add_string(nw, PF_PA_IFNAME, a->ifname); 1497 1498 nlattr_set_len(nw, off); 1499 1500 return (true); 1501 } 1502 1503 #define _OUT(_field) offsetof(struct pf_pooladdr, _field) 1504 static const struct nlattr_parser nla_p_pool_addr[] = { 1505 { .type = PF_PA_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = nlattr_get_nested }, 1506 { .type = PF_PA_IFNAME, .off = _OUT(ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 1507 }; 1508 NL_DECLARE_ATTR_PARSER(pool_addr_parser, nla_p_pool_addr); 1509 #undef _OUT 1510 1511 #define _OUT(_field) offsetof(struct pf_nl_pooladdr, _field) 1512 static const struct nlattr_parser nla_p_add_addr[] = { 1513 { .type = PF_AA_ACTION, .off = _OUT(action), .cb = nlattr_get_uint32 }, 1514 { .type = PF_AA_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, 1515 { .type = PF_AA_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 1516 { .type = PF_AA_R_NUM, .off = _OUT(r_num), .cb = nlattr_get_uint32 }, 1517 { .type = PF_AA_R_ACTION, .off = _OUT(r_action), .cb = nlattr_get_uint8 }, 1518 { .type = PF_AA_R_LAST, .off = _OUT(r_last), .cb = nlattr_get_uint8 }, 1519 { .type = PF_AA_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 1520 { .type = PF_AA_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 1521 { .type = PF_AA_ADDR, .off = _OUT(addr), .arg = &pool_addr_parser, .cb = nlattr_get_nested }, 1522 { .type = PF_AA_WHICH, .off = _OUT(which), .cb = nlattr_get_uint32 }, 1523 }; 1524 #undef _OUT 1525 NL_DECLARE_PARSER(add_addr_parser, struct genlmsghdr, nlf_p_empty, nla_p_add_addr); 1526 1527 static int 1528 pf_handle_add_addr(struct nlmsghdr *hdr, struct nl_pstate *npt) 1529 { 1530 struct pf_nl_pooladdr attrs = { 0 }; 1531 int error; 1532 1533 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); 1534 if (error != 0) 1535 return (error); 1536 1537 if (attrs.which == 0) 1538 attrs.which = PF_RDR; 1539 1540 error = pf_ioctl_add_addr(&attrs); 1541 1542 return (error); 1543 } 1544 1545 static int 1546 pf_handle_get_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) 1547 { 1548 struct pf_nl_pooladdr attrs = { 0 }; 1549 struct nl_writer *nw = npt->nw; 1550 struct genlmsghdr *ghdr_new; 1551 int error; 1552 1553 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); 1554 if (error != 0) 1555 return (error); 1556 1557 if (attrs.which == 0) 1558 attrs.which = PF_RDR; 1559 1560 error = pf_ioctl_get_addrs(&attrs); 1561 if (error != 0) 1562 return (error); 1563 1564 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1565 return (ENOMEM); 1566 1567 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1568 ghdr_new->cmd = PFNL_CMD_GET_ADDRS; 1569 ghdr_new->version = 0; 1570 ghdr_new->reserved = 0; 1571 1572 nlattr_add_u32(nw, PF_AA_NR, attrs.nr); 1573 1574 if (!nlmsg_end(nw)) { 1575 nlmsg_abort(nw); 1576 return (ENOMEM); 1577 } 1578 1579 return (error); 1580 } 1581 1582 static int 1583 pf_handle_get_addr(struct nlmsghdr *hdr, struct nl_pstate *npt) 1584 { 1585 struct pf_nl_pooladdr attrs = { 0 }; 1586 struct nl_writer *nw = npt->nw; 1587 struct genlmsghdr *ghdr_new; 1588 int error; 1589 1590 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); 1591 if (error != 0) 1592 return (error); 1593 1594 if (attrs.which == 0) 1595 attrs.which = PF_RDR; 1596 1597 error = pf_ioctl_get_addr(&attrs); 1598 if (error != 0) 1599 return (error); 1600 1601 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1602 return (ENOMEM); 1603 1604 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1605 ghdr_new->cmd = PFNL_CMD_GET_ADDR; 1606 ghdr_new->version = 0; 1607 ghdr_new->reserved = 0; 1608 1609 nlattr_add_u32(nw, PF_AA_ACTION, attrs.action); 1610 nlattr_add_u32(nw, PF_AA_TICKET, attrs.ticket); 1611 nlattr_add_u32(nw, PF_AA_NR, attrs.nr); 1612 nlattr_add_u32(nw, PF_AA_R_NUM, attrs.r_num); 1613 nlattr_add_u8(nw, PF_AA_R_ACTION, attrs.r_action); 1614 nlattr_add_u8(nw, PF_AA_R_LAST, attrs.r_last); 1615 nlattr_add_u8(nw, PF_AA_AF, attrs.af); 1616 nlattr_add_string(nw, PF_AA_ANCHOR, attrs.anchor); 1617 nlattr_add_pool_addr(nw, PF_AA_ADDR, &attrs.addr); 1618 1619 if (!nlmsg_end(nw)) { 1620 nlmsg_abort(nw); 1621 return (ENOMEM); 1622 } 1623 1624 return (0); 1625 } 1626 1627 #define _OUT(_field) offsetof(struct pfioc_ruleset, _field) 1628 static const struct nlattr_parser nla_p_ruleset[] = { 1629 { .type = PF_RS_PATH, .off = _OUT(path), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 1630 { .type = PF_RS_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 1631 }; 1632 NL_DECLARE_PARSER(ruleset_parser, struct genlmsghdr, nlf_p_empty, nla_p_ruleset); 1633 #undef _OUT 1634 1635 static int 1636 pf_handle_get_rulesets(struct nlmsghdr *hdr, struct nl_pstate *npt) 1637 { 1638 struct pfioc_ruleset attrs = { 0 }; 1639 struct nl_writer *nw = npt->nw; 1640 struct genlmsghdr *ghdr_new; 1641 int error; 1642 1643 error = nl_parse_nlmsg(hdr, &ruleset_parser, npt, &attrs); 1644 if (error != 0) 1645 return (error); 1646 1647 error = pf_ioctl_get_rulesets(&attrs); 1648 if (error != 0) 1649 return (error); 1650 1651 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1652 return (ENOMEM); 1653 1654 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1655 ghdr_new->cmd = PFNL_CMD_GET_RULESETS; 1656 ghdr_new->version = 0; 1657 ghdr_new->reserved = 0; 1658 1659 nlattr_add_u32(nw, PF_RS_NR, attrs.nr); 1660 1661 if (!nlmsg_end(nw)) { 1662 nlmsg_abort(nw); 1663 return (ENOMEM); 1664 } 1665 1666 return (0); 1667 } 1668 1669 static int 1670 pf_handle_get_ruleset(struct nlmsghdr *hdr, struct nl_pstate *npt) 1671 { 1672 struct pfioc_ruleset attrs = { 0 }; 1673 struct nl_writer *nw = npt->nw; 1674 struct genlmsghdr *ghdr_new; 1675 int error; 1676 1677 error = nl_parse_nlmsg(hdr, &ruleset_parser, npt, &attrs); 1678 if (error) 1679 return (error); 1680 1681 error = pf_ioctl_get_ruleset(&attrs); 1682 if (error != 0) 1683 return (error); 1684 1685 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1686 return (ENOMEM); 1687 1688 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1689 ghdr_new->cmd = PFNL_CMD_GET_RULESET; 1690 ghdr_new->version = 0; 1691 ghdr_new->reserved = 0; 1692 1693 nlattr_add_string(nw, PF_RS_NAME, attrs.name); 1694 1695 if (!nlmsg_end(nw)) { 1696 nlmsg_abort(nw); 1697 return (ENOMEM); 1698 } 1699 1700 return (0); 1701 } 1702 1703 static bool 1704 nlattr_add_pf_threshold(struct nl_writer *nw, int attrtype, 1705 struct pf_kthreshold *t) 1706 { 1707 int off = nlattr_add_nested(nw, attrtype); 1708 int conn_rate_count = 0; 1709 1710 /* Adjust the connection rate estimate. */ 1711 if (t->cr != NULL) 1712 conn_rate_count = counter_rate_get(t->cr); 1713 1714 nlattr_add_u32(nw, PF_TH_LIMIT, t->limit); 1715 nlattr_add_u32(nw, PF_TH_SECONDS, t->seconds); 1716 nlattr_add_u32(nw, PF_TH_COUNT, conn_rate_count); 1717 1718 nlattr_set_len(nw, off); 1719 1720 return (true); 1721 } 1722 1723 static int 1724 pf_handle_get_srcnodes(struct nlmsghdr *hdr, struct nl_pstate *npt) 1725 { 1726 struct nl_writer *nw = npt->nw; 1727 struct genlmsghdr *ghdr_new; 1728 struct pf_ksrc_node *n; 1729 struct pf_srchash *sh; 1730 int i; 1731 int secs; 1732 1733 hdr->nlmsg_flags |= NLM_F_MULTI; 1734 1735 for (i = 0, sh = V_pf_srchash; i <= V_pf_srchashmask; 1736 i++, sh++) { 1737 /* Avoid locking empty rows. */ 1738 if (LIST_EMPTY(&sh->nodes)) 1739 continue; 1740 1741 PF_HASHROW_LOCK(sh); 1742 secs = time_uptime; 1743 1744 LIST_FOREACH(n, &sh->nodes, entry) { 1745 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) { 1746 nlmsg_abort(nw); 1747 return (ENOMEM); 1748 } 1749 1750 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1751 ghdr_new->cmd = PFNL_CMD_GET_SRCNODES; 1752 ghdr_new->version = 0; 1753 ghdr_new->reserved = 0; 1754 1755 nlattr_add_in6_addr(nw, PF_SN_ADDR, &n->addr.v6); 1756 nlattr_add_in6_addr(nw, PF_SN_RADDR, &n->raddr.v6); 1757 nlattr_add_u32(nw, PF_SN_RULE_NR, n->rule->nr); 1758 nlattr_add_u64(nw, PF_SN_BYTES_IN, counter_u64_fetch(n->bytes[0])); 1759 nlattr_add_u64(nw, PF_SN_BYTES_OUT, counter_u64_fetch(n->bytes[1])); 1760 nlattr_add_u64(nw, PF_SN_PACKETS_IN, counter_u64_fetch(n->packets[0])); 1761 nlattr_add_u64(nw, PF_SN_PACKETS_OUT, counter_u64_fetch(n->packets[1])); 1762 nlattr_add_u32(nw, PF_SN_STATES, n->states); 1763 nlattr_add_u32(nw, PF_SN_CONNECTIONS, n->conn); 1764 nlattr_add_u8(nw, PF_SN_AF, n->af); 1765 nlattr_add_u8(nw, PF_SN_RAF, n->raf); 1766 nlattr_add_u8(nw, PF_SN_RULE_TYPE, n->ruletype); 1767 1768 nlattr_add_u64(nw, PF_SN_CREATION, secs - n->creation); 1769 if (n->expire > secs) 1770 nlattr_add_u64(nw, PF_SN_EXPIRE, n->expire - secs); 1771 else 1772 nlattr_add_u64(nw, PF_SN_EXPIRE, 0); 1773 1774 nlattr_add_pf_threshold(nw, PF_SN_CONNECTION_RATE, 1775 &n->conn_rate); 1776 1777 nlattr_add_u8(nw, PF_SN_NODE_TYPE, n->type); 1778 1779 if (!nlmsg_end(nw)) { 1780 PF_HASHROW_UNLOCK(sh); 1781 nlmsg_abort(nw); 1782 return (ENOMEM); 1783 } 1784 } 1785 PF_HASHROW_UNLOCK(sh); 1786 } 1787 1788 return (0); 1789 } 1790 1791 #define _OUT(_field) offsetof(struct pfioc_table, _field) 1792 static const struct nlattr_parser nla_p_table[] = { 1793 { .type = PF_T_ANCHOR, .off = _OUT(pfrio_table.pfrt_anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 1794 { .type = PF_T_NAME, .off = _OUT(pfrio_table.pfrt_name), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara }, 1795 { .type = PF_T_TABLE_FLAGS, .off = _OUT(pfrio_table.pfrt_flags), .cb = nlattr_get_uint32 }, 1796 { .type = PF_T_FLAGS, .off = _OUT(pfrio_flags), .cb = nlattr_get_uint32 }, 1797 }; 1798 static const struct nlfield_parser nlf_p_table[] = {}; 1799 NL_DECLARE_PARSER(table_parser, struct genlmsghdr, nlf_p_table, nla_p_table); 1800 #undef _OUT 1801 static int 1802 pf_handle_clear_tables(struct nlmsghdr *hdr, struct nl_pstate *npt) 1803 { 1804 struct pfioc_table attrs = { 0 }; 1805 struct nl_writer *nw = npt->nw; 1806 struct genlmsghdr *ghdr_new; 1807 int ndel = 0; 1808 int error; 1809 1810 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs); 1811 if (error != 0) 1812 return (error); 1813 1814 PF_RULES_WLOCK(); 1815 error = pfr_clr_tables(&attrs.pfrio_table, &ndel, attrs.pfrio_flags | PFR_FLAG_USERIOCTL); 1816 PF_RULES_WUNLOCK(); 1817 if (error != 0) 1818 return (error); 1819 1820 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1821 return (ENOMEM); 1822 1823 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1824 ghdr_new->cmd = PFNL_CMD_CLEAR_TABLES; 1825 ghdr_new->version = 0; 1826 ghdr_new->reserved = 0; 1827 1828 nlattr_add_u32(nw, PF_T_NBR_DELETED, ndel); 1829 1830 if (!nlmsg_end(nw)) { 1831 nlmsg_abort(nw); 1832 return (ENOMEM); 1833 } 1834 1835 return (0); 1836 } 1837 1838 static int 1839 pf_handle_add_table(struct nlmsghdr *hdr, struct nl_pstate *npt) 1840 { 1841 struct pfioc_table attrs = { 0 }; 1842 struct nl_writer *nw = npt->nw; 1843 struct genlmsghdr *ghdr_new; 1844 int error; 1845 1846 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs); 1847 if (error != 0) 1848 return (error); 1849 1850 PF_RULES_WLOCK(); 1851 error = pfr_add_tables(&attrs.pfrio_table, 1, &attrs.pfrio_nadd, 1852 attrs.pfrio_flags | PFR_FLAG_USERIOCTL); 1853 PF_RULES_WUNLOCK(); 1854 if (error != 0) 1855 return (error); 1856 1857 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1858 return (ENOMEM); 1859 1860 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1861 ghdr_new->cmd = PFNL_CMD_ADD_TABLE; 1862 ghdr_new->version = 0; 1863 ghdr_new->reserved = 0; 1864 1865 nlattr_add_u32(nw, PF_T_NBR_ADDED, attrs.pfrio_nadd); 1866 1867 if (!nlmsg_end(nw)) { 1868 nlmsg_abort(nw); 1869 return (ENOMEM); 1870 } 1871 1872 return (0); 1873 } 1874 1875 static int 1876 pf_handle_del_table(struct nlmsghdr *hdr, struct nl_pstate *npt) 1877 { 1878 struct pfioc_table attrs = { 0 }; 1879 struct nl_writer *nw = npt->nw; 1880 struct genlmsghdr *ghdr_new; 1881 int error; 1882 1883 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs); 1884 if (error != 0) 1885 return (error); 1886 1887 PF_RULES_WLOCK(); 1888 error = pfr_del_tables(&attrs.pfrio_table, 1, &attrs.pfrio_ndel, 1889 attrs.pfrio_flags | PFR_FLAG_USERIOCTL); 1890 PF_RULES_WUNLOCK(); 1891 if (error != 0) 1892 return (error); 1893 1894 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1895 return (ENOMEM); 1896 1897 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1898 ghdr_new->cmd = PFNL_CMD_ADD_TABLE; 1899 ghdr_new->version = 0; 1900 ghdr_new->reserved = 0; 1901 1902 nlattr_add_u32(nw, PF_T_NBR_DELETED, attrs.pfrio_ndel); 1903 1904 if (!nlmsg_end(nw)) { 1905 nlmsg_abort(nw); 1906 return (ENOMEM); 1907 } 1908 1909 return (0); 1910 } 1911 1912 static bool 1913 nlattr_add_pfr_table(struct nl_writer *nw, int attrtype, 1914 struct pfr_table *t) 1915 { 1916 int off = nlattr_add_nested(nw, attrtype); 1917 1918 nlattr_add_string(nw, PF_T_ANCHOR, t->pfrt_anchor); 1919 nlattr_add_string(nw, PF_T_NAME, t->pfrt_name); 1920 nlattr_add_u32(nw, PF_T_TABLE_FLAGS, t->pfrt_flags); 1921 1922 nlattr_set_len(nw, off); 1923 1924 return (true); 1925 } 1926 1927 static int 1928 pf_handle_get_tstats(struct nlmsghdr *hdr, struct nl_pstate *npt) 1929 { 1930 struct pfioc_table attrs = { 0 }; 1931 struct nl_writer *nw = npt->nw; 1932 struct genlmsghdr *ghdr_new; 1933 struct pfr_tstats *pfrtstats; 1934 int error; 1935 int n; 1936 1937 PF_RULES_RLOCK_TRACKER; 1938 1939 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs); 1940 if (error != 0) 1941 return (error); 1942 1943 PF_TABLE_STATS_LOCK(); 1944 PF_RULES_RLOCK(); 1945 1946 n = pfr_table_count(&attrs.pfrio_table, attrs.pfrio_flags); 1947 pfrtstats = mallocarray(n, 1948 sizeof(struct pfr_tstats), M_TEMP, M_NOWAIT | M_ZERO); 1949 1950 error = pfr_get_tstats(&attrs.pfrio_table, pfrtstats, 1951 &n, attrs.pfrio_flags | PFR_FLAG_USERIOCTL); 1952 1953 PF_RULES_RUNLOCK(); 1954 PF_TABLE_STATS_UNLOCK(); 1955 1956 if (error == 0) { 1957 hdr->nlmsg_flags |= NLM_F_MULTI; 1958 1959 for (int i = 0; i < n; i++) { 1960 uint64_t refcnt[PFR_REFCNT_MAX]; 1961 1962 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) { 1963 error = ENOMEM; 1964 break; 1965 } 1966 1967 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1968 ghdr_new->cmd = PFNL_CMD_GET_TSTATS; 1969 ghdr_new->version = 0; 1970 ghdr_new->reserved = 0; 1971 1972 nlattr_add_pfr_table(nw, PF_TS_TABLE, 1973 &pfrtstats[i].pfrts_t); 1974 nlattr_add_u64_array(nw, PF_TS_PACKETS, 1975 PFR_DIR_MAX * PFR_OP_TABLE_MAX, 1976 (uint64_t *)pfrtstats[i].pfrts_packets); 1977 nlattr_add_u64_array(nw, PF_TS_BYTES, 1978 PFR_DIR_MAX * PFR_OP_TABLE_MAX, 1979 (uint64_t *)pfrtstats[i].pfrts_bytes); 1980 nlattr_add_u64(nw, PF_TS_MATCH, 1981 pfrtstats[i].pfrts_match); 1982 nlattr_add_u64(nw, PF_TS_NOMATCH, 1983 pfrtstats[i].pfrts_nomatch); 1984 nlattr_add_u64(nw, PF_TS_TZERO, 1985 pfrtstats[i].pfrts_tzero); 1986 nlattr_add_u64(nw, PF_TS_CNT, pfrtstats[i].pfrts_cnt); 1987 1988 for (int j = 0; j < PFR_REFCNT_MAX; j++) 1989 refcnt[j] = pfrtstats[i].pfrts_refcnt[j]; 1990 1991 nlattr_add_u64_array(nw, PF_TS_REFCNT, PFR_REFCNT_MAX, 1992 refcnt); 1993 1994 if (! nlmsg_end(nw)) { 1995 error = ENOMEM; 1996 break; 1997 } 1998 } 1999 } 2000 free(pfrtstats, M_TEMP); 2001 2002 if (!nlmsg_end_dump(npt->nw, error, hdr)) { 2003 NL_LOG(LOG_DEBUG, "Unable to finalize the dump"); 2004 return (ENOMEM); 2005 } 2006 2007 return (error); 2008 } 2009 2010 static int 2011 pf_handle_clear_tstats(struct nlmsghdr *hdr, struct nl_pstate *npt) 2012 { 2013 struct pfioc_table attrs = { 0 }; 2014 struct nl_writer *nw = npt->nw; 2015 struct genlmsghdr *ghdr_new; 2016 int error; 2017 int nzero; 2018 2019 PF_RULES_RLOCK_TRACKER; 2020 2021 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs); 2022 if (error != 0) 2023 return (error); 2024 2025 PF_TABLE_STATS_LOCK(); 2026 PF_RULES_RLOCK(); 2027 error = pfr_clr_tstats(&attrs.pfrio_table, 1, 2028 &nzero, attrs.pfrio_flags | PFR_FLAG_USERIOCTL); 2029 PF_RULES_RUNLOCK(); 2030 PF_TABLE_STATS_UNLOCK(); 2031 2032 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 2033 return (ENOMEM); 2034 2035 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 2036 ghdr_new->cmd = PFNL_CMD_CLR_TSTATS; 2037 ghdr_new->version = 0; 2038 ghdr_new->reserved = 0; 2039 2040 nlattr_add_u64(nw, PF_TS_NZERO, nzero); 2041 2042 if (! nlmsg_end(nw)) 2043 error = ENOMEM; 2044 2045 return (error); 2046 } 2047 2048 static int 2049 pf_handle_clear_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) 2050 { 2051 struct pfioc_table attrs = { 0 }; 2052 struct nl_writer *nw = npt->nw; 2053 struct genlmsghdr *ghdr_new; 2054 int error; 2055 int ndel; 2056 2057 error = nl_parse_nlmsg(hdr, &table_parser, npt, &attrs); 2058 if (error != 0) 2059 return (error); 2060 2061 PF_RULES_WLOCK(); 2062 error = pfr_clr_addrs(&attrs.pfrio_table, &ndel, 2063 attrs.pfrio_flags | PFR_FLAG_USERIOCTL); 2064 PF_RULES_WUNLOCK(); 2065 2066 if (error) 2067 return (error); 2068 2069 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 2070 return (ENOMEM); 2071 2072 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 2073 ghdr_new->cmd = PFNL_CMD_CLR_ADDRS; 2074 ghdr_new->version = 0; 2075 ghdr_new->reserved = 0; 2076 2077 nlattr_add_u64(nw, PF_T_NBR_DELETED, ndel); 2078 2079 if (!nlmsg_end(nw)) 2080 return (ENOMEM); 2081 2082 return (error); 2083 } 2084 2085 TAILQ_HEAD(pfr_addrq, pfr_addr_item); 2086 struct nl_parsed_table_addrs { 2087 struct pfr_table table; 2088 uint32_t flags; 2089 struct pfr_addr addrs[256]; 2090 size_t addr_count; 2091 int nadd; 2092 int ndel; 2093 }; 2094 #define _OUT(_field) offsetof(struct pfr_addr, _field) 2095 static const struct nlattr_parser nla_p_pfr_addr[] = { 2096 { .type = PFR_A_AF, .off = _OUT(pfra_af), .cb = nlattr_get_uint8 }, 2097 { .type = PFR_A_NET, .off = _OUT(pfra_net), .cb = nlattr_get_uint8 }, 2098 { .type = PFR_A_NOT, .off = _OUT(pfra_not), .cb = nlattr_get_bool }, 2099 { .type = PFR_A_ADDR, .off = _OUT(pfra_u), .cb = nlattr_get_in6_addr }, 2100 }; 2101 #undef _OUT 2102 NL_DECLARE_ATTR_PARSER(pfra_addr_parser, nla_p_pfr_addr); 2103 2104 static int 2105 nlattr_get_pfr_addr(struct nlattr *nla, struct nl_pstate *npt, const void *arg, 2106 void *target) 2107 { 2108 struct nl_parsed_table_addrs *attrs = target; 2109 struct pfr_addr addr = { 0 }; 2110 int error; 2111 2112 if (attrs->addr_count >= nitems(attrs->addrs)) 2113 return (E2BIG); 2114 2115 error = nlattr_get_nested(nla, npt, &pfra_addr_parser, &addr); 2116 if (error != 0) 2117 return (error); 2118 2119 memcpy(&attrs->addrs[attrs->addr_count], &addr, sizeof(addr)); 2120 attrs->addr_count++; 2121 2122 return (0); 2123 } 2124 2125 NL_DECLARE_ATTR_PARSER(nested_table_parser, nla_p_table); 2126 2127 #define _OUT(_field) offsetof(struct nl_parsed_table_addrs, _field) 2128 static const struct nlattr_parser nla_p_table_addr[] = { 2129 { .type = PF_TA_TABLE, .off = _OUT(table), .arg = &nested_table_parser, .cb = nlattr_get_nested }, 2130 { .type = PF_TA_ADDR, .cb = nlattr_get_pfr_addr }, 2131 { .type = PF_TA_FLAGS, .off = _OUT(flags), .cb = nlattr_get_uint32 }, 2132 }; 2133 NL_DECLARE_PARSER(table_addr_parser, struct genlmsghdr, nlf_p_empty, nla_p_table_addr); 2134 #undef _OUT 2135 2136 static int 2137 pf_handle_table_add_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) 2138 { 2139 struct nl_parsed_table_addrs attrs = { 0 }; 2140 struct nl_writer *nw = npt->nw; 2141 struct genlmsghdr *ghdr_new; 2142 int error; 2143 2144 error = nl_parse_nlmsg(hdr, &table_addr_parser, npt, &attrs); 2145 if (error != 0) 2146 return (error); 2147 2148 PF_RULES_WLOCK(); 2149 error = pfr_add_addrs(&attrs.table, &attrs.addrs[0], 2150 attrs.addr_count, &attrs.nadd, attrs.flags | PFR_FLAG_USERIOCTL); 2151 PF_RULES_WUNLOCK(); 2152 2153 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 2154 return (ENOMEM); 2155 2156 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 2157 ghdr_new->cmd = PFNL_CMD_TABLE_ADD_ADDR; 2158 ghdr_new->version = 0; 2159 ghdr_new->reserved = 0; 2160 2161 nlattr_add_u32(nw, PF_TA_NBR_ADDED, attrs.nadd); 2162 2163 if (!nlmsg_end(nw)) 2164 return (ENOMEM); 2165 2166 return (error); 2167 } 2168 2169 static int 2170 pf_handle_table_del_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) 2171 { 2172 struct nl_parsed_table_addrs attrs = { 0 }; 2173 struct nl_writer *nw = npt->nw; 2174 struct genlmsghdr *ghdr_new; 2175 int error; 2176 2177 error = nl_parse_nlmsg(hdr, &table_addr_parser, npt, &attrs); 2178 if (error != 0) 2179 return (error); 2180 2181 PF_RULES_WLOCK(); 2182 error = pfr_del_addrs(&attrs.table, &attrs.addrs[0], 2183 attrs.addr_count, &attrs.ndel, attrs.flags | PFR_FLAG_USERIOCTL); 2184 PF_RULES_WUNLOCK(); 2185 2186 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 2187 return (ENOMEM); 2188 2189 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 2190 ghdr_new->cmd = PFNL_CMD_TABLE_DEL_ADDR; 2191 ghdr_new->version = 0; 2192 ghdr_new->reserved = 0; 2193 2194 nlattr_add_u32(nw, PF_TA_NBR_DELETED, attrs.ndel); 2195 2196 if (!nlmsg_end(nw)) 2197 return (ENOMEM); 2198 2199 return (error); 2200 } 2201 2202 static const struct nlhdr_parser *all_parsers[] = { 2203 &state_parser, 2204 &addrule_parser, 2205 &getrules_parser, 2206 &clear_states_parser, 2207 &set_statusif_parser, 2208 &natlook_parser, 2209 &set_debug_parser, 2210 &set_timeout_parser, 2211 &set_limit_parser, 2212 &pool_addr_parser, 2213 &add_addr_parser, 2214 &ruleset_parser, 2215 &table_parser, 2216 &table_addr_parser, 2217 }; 2218 2219 static uint16_t family_id; 2220 2221 static const struct genl_cmd pf_cmds[] = { 2222 { 2223 .cmd_num = PFNL_CMD_GETSTATES, 2224 .cmd_name = "GETSTATES", 2225 .cmd_cb = pf_handle_getstates, 2226 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2227 .cmd_priv = PRIV_NETINET_PF, 2228 }, 2229 { 2230 .cmd_num = PFNL_CMD_GETCREATORS, 2231 .cmd_name = "GETCREATORS", 2232 .cmd_cb = pf_handle_getcreators, 2233 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2234 .cmd_priv = PRIV_NETINET_PF, 2235 }, 2236 { 2237 .cmd_num = PFNL_CMD_START, 2238 .cmd_name = "START", 2239 .cmd_cb = pf_handle_start, 2240 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2241 .cmd_priv = PRIV_NETINET_PF, 2242 }, 2243 { 2244 .cmd_num = PFNL_CMD_STOP, 2245 .cmd_name = "STOP", 2246 .cmd_cb = pf_handle_stop, 2247 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2248 .cmd_priv = PRIV_NETINET_PF, 2249 }, 2250 { 2251 .cmd_num = PFNL_CMD_ADDRULE, 2252 .cmd_name = "ADDRULE", 2253 .cmd_cb = pf_handle_addrule, 2254 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2255 .cmd_priv = PRIV_NETINET_PF, 2256 }, 2257 { 2258 .cmd_num = PFNL_CMD_GETRULES, 2259 .cmd_name = "GETRULES", 2260 .cmd_cb = pf_handle_getrules, 2261 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2262 .cmd_priv = PRIV_NETINET_PF, 2263 }, 2264 { 2265 .cmd_num = PFNL_CMD_GETRULE, 2266 .cmd_name = "GETRULE", 2267 .cmd_cb = pf_handle_getrule, 2268 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2269 .cmd_priv = PRIV_NETINET_PF, 2270 }, 2271 { 2272 .cmd_num = PFNL_CMD_CLRSTATES, 2273 .cmd_name = "CLRSTATES", 2274 .cmd_cb = pf_handle_clear_states, 2275 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2276 .cmd_priv = PRIV_NETINET_PF, 2277 }, 2278 { 2279 .cmd_num = PFNL_CMD_KILLSTATES, 2280 .cmd_name = "KILLSTATES", 2281 .cmd_cb = pf_handle_kill_states, 2282 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2283 .cmd_priv = PRIV_NETINET_PF, 2284 }, 2285 { 2286 .cmd_num = PFNL_CMD_SET_STATUSIF, 2287 .cmd_name = "SETSTATUSIF", 2288 .cmd_cb = pf_handle_set_statusif, 2289 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2290 .cmd_priv = PRIV_NETINET_PF, 2291 }, 2292 { 2293 .cmd_num = PFNL_CMD_GET_STATUS, 2294 .cmd_name = "GETSTATUS", 2295 .cmd_cb = pf_handle_get_status, 2296 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2297 .cmd_priv = PRIV_NETINET_PF, 2298 }, 2299 { 2300 .cmd_num = PFNL_CMD_CLEAR_STATUS, 2301 .cmd_name = "CLEARSTATUS", 2302 .cmd_cb = pf_handle_clear_status, 2303 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2304 .cmd_priv = PRIV_NETINET_PF, 2305 }, 2306 { 2307 .cmd_num = PFNL_CMD_NATLOOK, 2308 .cmd_name = "NATLOOK", 2309 .cmd_cb = pf_handle_natlook, 2310 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2311 .cmd_priv = PRIV_NETINET_PF, 2312 }, 2313 { 2314 .cmd_num = PFNL_CMD_SET_DEBUG, 2315 .cmd_name = "SET_DEBUG", 2316 .cmd_cb = pf_handle_set_debug, 2317 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2318 .cmd_priv = PRIV_NETINET_PF, 2319 }, 2320 { 2321 .cmd_num = PFNL_CMD_SET_TIMEOUT, 2322 .cmd_name = "SET_TIMEOUT", 2323 .cmd_cb = pf_handle_set_timeout, 2324 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2325 .cmd_priv = PRIV_NETINET_PF, 2326 }, 2327 { 2328 .cmd_num = PFNL_CMD_GET_TIMEOUT, 2329 .cmd_name = "GET_TIMEOUT", 2330 .cmd_cb = pf_handle_get_timeout, 2331 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2332 .cmd_priv = PRIV_NETINET_PF, 2333 }, 2334 { 2335 .cmd_num = PFNL_CMD_SET_LIMIT, 2336 .cmd_name = "SET_LIMIT", 2337 .cmd_cb = pf_handle_set_limit, 2338 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2339 .cmd_priv = PRIV_NETINET_PF, 2340 }, 2341 { 2342 .cmd_num = PFNL_CMD_GET_LIMIT, 2343 .cmd_name = "GET_LIMIT", 2344 .cmd_cb = pf_handle_get_limit, 2345 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2346 .cmd_priv = PRIV_NETINET_PF, 2347 }, 2348 { 2349 .cmd_num = PFNL_CMD_BEGIN_ADDRS, 2350 .cmd_name = "BEGIN_ADDRS", 2351 .cmd_cb = pf_handle_begin_addrs, 2352 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2353 .cmd_priv = PRIV_NETINET_PF, 2354 }, 2355 { 2356 .cmd_num = PFNL_CMD_ADD_ADDR, 2357 .cmd_name = "ADD_ADDR", 2358 .cmd_cb = pf_handle_add_addr, 2359 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2360 .cmd_priv = PRIV_NETINET_PF, 2361 }, 2362 { 2363 .cmd_num = PFNL_CMD_GET_ADDRS, 2364 .cmd_name = "GET_ADDRS", 2365 .cmd_cb = pf_handle_get_addrs, 2366 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2367 .cmd_priv = PRIV_NETINET_PF, 2368 }, 2369 { 2370 .cmd_num = PFNL_CMD_GET_ADDR, 2371 .cmd_name = "GET_ADDRS", 2372 .cmd_cb = pf_handle_get_addr, 2373 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2374 .cmd_priv = PRIV_NETINET_PF, 2375 }, 2376 { 2377 .cmd_num = PFNL_CMD_GET_RULESETS, 2378 .cmd_name = "GET_RULESETS", 2379 .cmd_cb = pf_handle_get_rulesets, 2380 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2381 .cmd_priv = PRIV_NETINET_PF, 2382 }, 2383 { 2384 .cmd_num = PFNL_CMD_GET_RULESET, 2385 .cmd_name = "GET_RULESET", 2386 .cmd_cb = pf_handle_get_ruleset, 2387 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2388 .cmd_priv = PRIV_NETINET_PF, 2389 }, 2390 { 2391 .cmd_num = PFNL_CMD_GET_SRCNODES, 2392 .cmd_name = "GET_SRCNODES", 2393 .cmd_cb = pf_handle_get_srcnodes, 2394 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2395 .cmd_priv = PRIV_NETINET_PF, 2396 }, 2397 { 2398 .cmd_num = PFNL_CMD_CLEAR_TABLES, 2399 .cmd_name = "CLEAR_TABLES", 2400 .cmd_cb = pf_handle_clear_tables, 2401 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2402 .cmd_priv = PRIV_NETINET_PF, 2403 }, 2404 { 2405 .cmd_num = PFNL_CMD_ADD_TABLE, 2406 .cmd_name = "ADD_TABLE", 2407 .cmd_cb = pf_handle_add_table, 2408 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2409 .cmd_priv = PRIV_NETINET_PF, 2410 }, 2411 { 2412 .cmd_num = PFNL_CMD_DEL_TABLE, 2413 .cmd_name = "DEL_TABLE", 2414 .cmd_cb = pf_handle_del_table, 2415 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2416 .cmd_priv = PRIV_NETINET_PF, 2417 }, 2418 { 2419 .cmd_num = PFNL_CMD_GET_TSTATS, 2420 .cmd_name = "GET_TSTATS", 2421 .cmd_cb = pf_handle_get_tstats, 2422 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 2423 .cmd_priv = PRIV_NETINET_PF, 2424 }, 2425 { 2426 .cmd_num = PFNL_CMD_CLR_TSTATS, 2427 .cmd_name = "CLR_TSTATS", 2428 .cmd_cb = pf_handle_clear_tstats, 2429 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2430 .cmd_priv = PRIV_NETINET_PF, 2431 }, 2432 { 2433 .cmd_num = PFNL_CMD_CLR_ADDRS, 2434 .cmd_name = "CRL_ADDRS", 2435 .cmd_cb = pf_handle_clear_addrs, 2436 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2437 .cmd_priv = PRIV_NETINET_PF, 2438 }, 2439 { 2440 .cmd_num = PFNL_CMD_TABLE_ADD_ADDR, 2441 .cmd_name = "TABLE_ADD_ADDRS", 2442 .cmd_cb = pf_handle_table_add_addrs, 2443 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2444 .cmd_priv = PRIV_NETINET_PF, 2445 }, 2446 { 2447 .cmd_num = PFNL_CMD_TABLE_DEL_ADDR, 2448 .cmd_name = "TABLE_DEL_ADDRS", 2449 .cmd_cb = pf_handle_table_del_addrs, 2450 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 2451 .cmd_priv = PRIV_NETINET_PF, 2452 }, 2453 }; 2454 2455 void 2456 pf_nl_register(void) 2457 { 2458 NL_VERIFY_PARSERS(all_parsers); 2459 2460 family_id = genl_register_family(PFNL_FAMILY_NAME, 0, 2, PFNL_CMD_MAX); 2461 genl_register_cmds(family_id, pf_cmds, nitems(pf_cmds)); 2462 } 2463 2464 void 2465 pf_nl_unregister(void) 2466 { 2467 genl_unregister_family(family_id); 2468 } 2469