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