diff --git a/sys/netpfil/pf/pf_nl.c b/sys/netpfil/pf/pf_nl.c index 510aac2af48a..62d5972c4abb 100644 --- a/sys/netpfil/pf/pf_nl.c +++ b/sys/netpfil/pf/pf_nl.c @@ -1,1822 +1,1822 @@ /*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2023 Alexander V. Chernikov * Copyright (c) 2023 Rubicon Communications, LLC (Netgate) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #include #include "opt_inet.h" #include "opt_inet6.h" #include #include #include #include #include #include #include #include #include #include #include #include #define DEBUG_MOD_NAME nl_pf #define DEBUG_MAX_LEVEL LOG_DEBUG3 #include _DECLARE_DEBUG(LOG_DEBUG); struct nl_parsed_state { uint8_t version; uint32_t id; uint32_t creatorid; char ifname[IFNAMSIZ]; uint16_t proto; sa_family_t af; struct pf_addr addr; struct pf_addr mask; }; #define _IN(_field) offsetof(struct genlmsghdr, _field) #define _OUT(_field) offsetof(struct nl_parsed_state, _field) static const struct nlattr_parser nla_p_state[] = { { .type = PF_ST_ID, .off = _OUT(id), .cb = nlattr_get_uint32 }, { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = nlattr_get_uint32 }, { .type = PF_ST_IFNAME, .arg = (const void *)IFNAMSIZ, .off = _OUT(ifname), .cb = nlattr_get_chara }, - { .type = PF_ST_AF, .off = _OUT(proto), .cb = nlattr_get_uint8 }, + { .type = PF_ST_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, { .type = PF_ST_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint16 }, { .type = PF_ST_FILTER_ADDR, .off = _OUT(addr), .cb = nlattr_get_in6_addr }, { .type = PF_ST_FILTER_MASK, .off = _OUT(mask), .cb = nlattr_get_in6_addr }, }; static const struct nlfield_parser nlf_p_generic[] = { { .off_in = _IN(version), .off_out = _OUT(version), .cb = nlf_get_u8 }, }; #undef _IN #undef _OUT NL_DECLARE_PARSER(state_parser, struct genlmsghdr, nlf_p_generic, nla_p_state); static void dump_addr(struct nl_writer *nw, int attr, const struct pf_addr *addr, int af) { switch (af) { case AF_INET: nlattr_add(nw, attr, 4, &addr->v4); break; case AF_INET6: nlattr_add(nw, attr, 16, &addr->v6); break; }; } static bool dump_state_peer(struct nl_writer *nw, int attr, const struct pf_state_peer *peer) { int off = nlattr_add_nested(nw, attr); if (off == 0) return (false); nlattr_add_u32(nw, PF_STP_SEQLO, peer->seqlo); nlattr_add_u32(nw, PF_STP_SEQHI, peer->seqhi); nlattr_add_u32(nw, PF_STP_SEQDIFF, peer->seqdiff); nlattr_add_u16(nw, PF_STP_MAX_WIN, peer->max_win); nlattr_add_u16(nw, PF_STP_MSS, peer->mss); nlattr_add_u8(nw, PF_STP_STATE, peer->state); nlattr_add_u8(nw, PF_STP_WSCALE, peer->wscale); if (peer->scrub != NULL) { struct pf_state_scrub *sc = peer->scrub; uint16_t pfss_flags = sc->pfss_flags & PFSS_TIMESTAMP; nlattr_add_u16(nw, PF_STP_PFSS_FLAGS, pfss_flags); nlattr_add_u32(nw, PF_STP_PFSS_TS_MOD, sc->pfss_ts_mod); nlattr_add_u8(nw, PF_STP_PFSS_TTL, sc->pfss_ttl); nlattr_add_u8(nw, PF_STP_SCRUB_FLAG, PFSYNC_SCRUB_FLAG_VALID); } nlattr_set_len(nw, off); return (true); } static bool dump_state_key(struct nl_writer *nw, int attr, const struct pf_state_key *key) { int off = nlattr_add_nested(nw, attr); if (off == 0) return (false); dump_addr(nw, PF_STK_ADDR0, &key->addr[0], key->af); dump_addr(nw, PF_STK_ADDR1, &key->addr[1], key->af); nlattr_add_u16(nw, PF_STK_PORT0, key->port[0]); nlattr_add_u16(nw, PF_STK_PORT1, key->port[1]); nlattr_set_len(nw, off); return (true); } static int dump_state(struct nlpcb *nlp, const struct nlmsghdr *hdr, struct pf_kstate *s, struct nl_pstate *npt) { struct nl_writer *nw = npt->nw; int error = 0; int af; struct pf_state_key *key; PF_STATE_LOCK_ASSERT(s); if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) goto enomem; struct genlmsghdr *ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_GETSTATES; ghdr_new->version = 0; ghdr_new->reserved = 0; nlattr_add_u64(nw, PF_ST_VERSION, PF_STATE_VERSION); key = s->key[PF_SK_WIRE]; if (!dump_state_key(nw, PF_ST_KEY_WIRE, key)) goto enomem; key = s->key[PF_SK_STACK]; if (!dump_state_key(nw, PF_ST_KEY_STACK, key)) goto enomem; af = s->key[PF_SK_WIRE]->af; nlattr_add_u8(nw, PF_ST_PROTO, s->key[PF_SK_WIRE]->proto); nlattr_add_u8(nw, PF_ST_AF, af); nlattr_add_string(nw, PF_ST_IFNAME, s->kif->pfik_name); nlattr_add_string(nw, PF_ST_ORIG_IFNAME, s->orig_kif->pfik_name); dump_addr(nw, PF_ST_RT_ADDR, &s->rt_addr, af); nlattr_add_u32(nw, PF_ST_CREATION, time_uptime - (s->creation / 1000)); uint32_t expire = pf_state_expires(s); if (expire > time_uptime) expire = expire - time_uptime; nlattr_add_u32(nw, PF_ST_EXPIRE, expire); nlattr_add_u8(nw, PF_ST_DIRECTION, s->direction); nlattr_add_u8(nw, PF_ST_LOG, s->act.log); nlattr_add_u8(nw, PF_ST_TIMEOUT, s->timeout); nlattr_add_u16(nw, PF_ST_STATE_FLAGS, s->state_flags); uint8_t sync_flags = 0; if (s->src_node) sync_flags |= PFSYNC_FLAG_SRCNODE; if (s->nat_src_node) sync_flags |= PFSYNC_FLAG_NATSRCNODE; nlattr_add_u8(nw, PF_ST_SYNC_FLAGS, sync_flags); nlattr_add_u64(nw, PF_ST_ID, s->id); nlattr_add_u32(nw, PF_ST_CREATORID, htonl(s->creatorid)); nlattr_add_u32(nw, PF_ST_RULE, s->rule.ptr ? s->rule.ptr->nr : -1); nlattr_add_u32(nw, PF_ST_ANCHOR, s->anchor.ptr ? s->anchor.ptr->nr : -1); nlattr_add_u32(nw, PF_ST_NAT_RULE, s->nat_rule.ptr ? s->nat_rule.ptr->nr : -1); nlattr_add_u64(nw, PF_ST_PACKETS0, s->packets[0]); nlattr_add_u64(nw, PF_ST_PACKETS1, s->packets[1]); nlattr_add_u64(nw, PF_ST_BYTES0, s->bytes[0]); nlattr_add_u64(nw, PF_ST_BYTES1, s->bytes[1]); nlattr_add_u32(nw, PF_ST_RTABLEID, s->act.rtableid); nlattr_add_u8(nw, PF_ST_MIN_TTL, s->act.min_ttl); nlattr_add_u16(nw, PF_ST_MAX_MSS, s->act.max_mss); nlattr_add_u16(nw, PF_ST_DNPIPE, s->act.dnpipe); nlattr_add_u16(nw, PF_ST_DNRPIPE, s->act.dnrpipe); nlattr_add_u8(nw, PF_ST_RT, s->rt); if (s->rt_kif != NULL) nlattr_add_string(nw, PF_ST_RT_IFNAME, s->rt_kif->pfik_name); if (!dump_state_peer(nw, PF_ST_PEER_SRC, &s->src)) goto enomem; if (!dump_state_peer(nw, PF_ST_PEER_DST, &s->dst)) goto enomem; if (nlmsg_end(nw)) return (0); enomem: error = ENOMEM; nlmsg_abort(nw); return (error); } static int handle_dumpstates(struct nlpcb *nlp, struct nl_parsed_state *attrs, struct nlmsghdr *hdr, struct nl_pstate *npt) { int error = 0; hdr->nlmsg_flags |= NLM_F_MULTI; for (int i = 0; i <= V_pf_hashmask; i++) { struct pf_idhash *ih = &V_pf_idhash[i]; struct pf_kstate *s; if (LIST_EMPTY(&ih->states)) continue; PF_HASHROW_LOCK(ih); LIST_FOREACH(s, &ih->states, entry) { sa_family_t af = s->key[PF_SK_WIRE]->af; if (s->timeout == PFTM_UNLINKED) continue; /* Filter */ if (attrs->creatorid != 0 && s->creatorid != attrs->creatorid) continue; if (attrs->ifname[0] != 0 && strncmp(attrs->ifname, s->kif->pfik_name, IFNAMSIZ) != 0) continue; if (attrs->proto != 0 && s->key[PF_SK_WIRE]->proto != attrs->proto) continue; if (attrs->af != 0 && af != attrs->af) continue; if (pf_match_addr(1, &s->key[PF_SK_WIRE]->addr[0], &attrs->mask, &attrs->addr, af) && pf_match_addr(1, &s->key[PF_SK_WIRE]->addr[1], &attrs->mask, &attrs->addr, af) && pf_match_addr(1, &s->key[PF_SK_STACK]->addr[0], &attrs->mask, &attrs->addr, af) && pf_match_addr(1, &s->key[PF_SK_STACK]->addr[1], &attrs->mask, &attrs->addr, af)) continue; error = dump_state(nlp, hdr, s, npt); if (error != 0) break; } PF_HASHROW_UNLOCK(ih); } if (!nlmsg_end_dump(npt->nw, error, hdr)) { NL_LOG(LOG_DEBUG, "Unable to finalize the dump"); return (ENOMEM); } return (error); } static int handle_getstate(struct nlpcb *nlp, struct nl_parsed_state *attrs, struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pf_kstate *s; int ret; s = pf_find_state_byid(attrs->id, attrs->creatorid); if (s == NULL) return (ENOENT); ret = dump_state(nlp, hdr, s, npt); PF_STATE_UNLOCK(s); return (ret); } static int dump_creatorid(struct nlpcb *nlp, const struct nlmsghdr *hdr, uint32_t creator, struct nl_pstate *npt) { struct nl_writer *nw = npt->nw; if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) goto enomem; struct genlmsghdr *ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_GETCREATORS; ghdr_new->version = 0; ghdr_new->reserved = 0; nlattr_add_u32(nw, PF_ST_CREATORID, htonl(creator)); if (nlmsg_end(nw)) return (0); enomem: nlmsg_abort(nw); return (ENOMEM); } static int pf_handle_getstates(struct nlmsghdr *hdr, struct nl_pstate *npt) { int error; struct nl_parsed_state attrs = {}; error = nl_parse_nlmsg(hdr, &state_parser, npt, &attrs); if (error != 0) return (error); if (attrs.id != 0) error = handle_getstate(npt->nlp, &attrs, hdr, npt); else error = handle_dumpstates(npt->nlp, &attrs, hdr, npt); return (error); } static int pf_handle_getcreators(struct nlmsghdr *hdr, struct nl_pstate *npt) { uint32_t creators[16]; int error = 0; bzero(creators, sizeof(creators)); for (int i = 0; i < V_pf_hashmask; i++) { struct pf_idhash *ih = &V_pf_idhash[i]; struct pf_kstate *s; if (LIST_EMPTY(&ih->states)) continue; PF_HASHROW_LOCK(ih); LIST_FOREACH(s, &ih->states, entry) { int j; if (s->timeout == PFTM_UNLINKED) continue; for (j = 0; j < nitems(creators); j++) { if (creators[j] == s->creatorid) break; if (creators[j] == 0) { creators[j] = s->creatorid; break; } } if (j == nitems(creators)) printf("Warning: too many creators!\n"); } PF_HASHROW_UNLOCK(ih); } hdr->nlmsg_flags |= NLM_F_MULTI; for (int i = 0; i < nitems(creators); i++) { if (creators[i] == 0) break; error = dump_creatorid(npt->nlp, hdr, creators[i], npt); } if (!nlmsg_end_dump(npt->nw, error, hdr)) { NL_LOG(LOG_DEBUG, "Unable to finalize the dump"); return (ENOMEM); } return (error); } static int pf_handle_start(struct nlmsghdr *hdr __unused, struct nl_pstate *npt __unused) { return (pf_start()); } static int pf_handle_stop(struct nlmsghdr *hdr __unused, struct nl_pstate *npt __unused) { return (pf_stop()); } #define _OUT(_field) offsetof(struct pf_addr_wrap, _field) static const struct nlattr_parser nla_p_addr_wrap[] = { { .type = PF_AT_ADDR, .off = _OUT(v.a.addr), .cb = nlattr_get_in6_addr }, { .type = PF_AT_MASK, .off = _OUT(v.a.mask), .cb = nlattr_get_in6_addr }, { .type = PF_AT_IFNAME, .off = _OUT(v.ifname), .arg = (void *)IFNAMSIZ,.cb = nlattr_get_chara }, { .type = PF_AT_TABLENAME, .off = _OUT(v.tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara }, { .type = PF_AT_TYPE, .off = _OUT(type), .cb = nlattr_get_uint8 }, { .type = PF_AT_IFLAGS, .off = _OUT(iflags), .cb = nlattr_get_uint8 }, }; NL_DECLARE_ATTR_PARSER(addr_wrap_parser, nla_p_addr_wrap); #undef _OUT static bool nlattr_add_addr_wrap(struct nl_writer *nw, int attrtype, struct pf_addr_wrap *a) { int off = nlattr_add_nested(nw, attrtype); nlattr_add_in6_addr(nw, PF_AT_ADDR, &a->v.a.addr.v6); nlattr_add_in6_addr(nw, PF_AT_MASK, &a->v.a.mask.v6); nlattr_add_u8(nw, PF_AT_TYPE, a->type); nlattr_add_u8(nw, PF_AT_IFLAGS, a->iflags); if (a->type == PF_ADDR_DYNIFTL) { nlattr_add_string(nw, PF_AT_IFNAME, a->v.ifname); nlattr_add_u32(nw, PF_AT_DYNCNT, a->p.dyncnt); } else if (a->type == PF_ADDR_TABLE) { nlattr_add_string(nw, PF_AT_TABLENAME, a->v.tblname); nlattr_add_u32(nw, PF_AT_TBLCNT, a->p.tblcnt); } nlattr_set_len(nw, off); return (true); } #define _OUT(_field) offsetof(struct pf_rule_addr, _field) static const struct nlattr_parser nla_p_ruleaddr[] = { { .type = PF_RAT_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = nlattr_get_nested }, { .type = PF_RAT_SRC_PORT, .off = _OUT(port[0]), .cb = nlattr_get_uint16 }, { .type = PF_RAT_DST_PORT, .off = _OUT(port[1]), .cb = nlattr_get_uint16 }, { .type = PF_RAT_NEG, .off = _OUT(neg), .cb = nlattr_get_uint8 }, { .type = PF_RAT_OP, .off = _OUT(port_op), .cb = nlattr_get_uint8 }, }; NL_DECLARE_ATTR_PARSER(rule_addr_parser, nla_p_ruleaddr); #undef _OUT static bool nlattr_add_rule_addr(struct nl_writer *nw, int attrtype, struct pf_rule_addr *r) { struct pf_addr_wrap aw = {0}; int off = nlattr_add_nested(nw, attrtype); bcopy(&(r->addr), &aw, sizeof(struct pf_addr_wrap)); pf_addr_copyout(&aw); nlattr_add_addr_wrap(nw, PF_RAT_ADDR, &aw); nlattr_add_u16(nw, PF_RAT_SRC_PORT, r->port[0]); nlattr_add_u16(nw, PF_RAT_DST_PORT, r->port[1]); nlattr_add_u8(nw, PF_RAT_NEG, r->neg); nlattr_add_u8(nw, PF_RAT_OP, r->port_op); nlattr_set_len(nw, off); return (true); } #define _OUT(_field) offsetof(struct pf_mape_portset, _field) static const struct nlattr_parser nla_p_mape_portset[] = { { .type = PF_MET_OFFSET, .off = _OUT(offset), .cb = nlattr_get_uint8 }, { .type = PF_MET_PSID_LEN, .off = _OUT(psidlen), .cb = nlattr_get_uint8 }, {. type = PF_MET_PSID, .off = _OUT(psid), .cb = nlattr_get_uint16 }, }; NL_DECLARE_ATTR_PARSER(mape_portset_parser, nla_p_mape_portset); #undef _OUT static bool nlattr_add_mape_portset(struct nl_writer *nw, int attrtype, const struct pf_mape_portset *m) { int off = nlattr_add_nested(nw, attrtype); nlattr_add_u8(nw, PF_MET_OFFSET, m->offset); nlattr_add_u8(nw, PF_MET_PSID_LEN, m->psidlen); nlattr_add_u16(nw, PF_MET_PSID, m->psid); nlattr_set_len(nw, off); return (true); } struct nl_parsed_labels { char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; uint32_t i; }; static int nlattr_get_pf_rule_labels(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target) { struct nl_parsed_labels *l = (struct nl_parsed_labels *)target; int ret; if (l->i >= PF_RULE_MAX_LABEL_COUNT) return (E2BIG); ret = nlattr_get_chara(nla, npt, (void *)PF_RULE_LABEL_SIZE, l->labels[l->i]); if (ret == 0) l->i++; return (ret); } #define _OUT(_field) offsetof(struct nl_parsed_labels, _field) static const struct nlattr_parser nla_p_labels[] = { { .type = PF_LT_LABEL, .off = 0, .cb = nlattr_get_pf_rule_labels }, }; NL_DECLARE_ATTR_PARSER(rule_labels_parser, nla_p_labels); #undef _OUT static int nlattr_get_nested_pf_rule_labels(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target) { struct nl_parsed_labels parsed_labels = { }; int error; /* Assumes target points to the beginning of the structure */ error = nl_parse_header(NLA_DATA(nla), NLA_DATA_LEN(nla), &rule_labels_parser, npt, &parsed_labels); if (error != 0) return (error); memcpy(target, parsed_labels.labels, sizeof(parsed_labels.labels)); return (0); } static bool nlattr_add_labels(struct nl_writer *nw, int attrtype, const struct pf_krule *r) { int off = nlattr_add_nested(nw, attrtype); int i = 0; while (r->label[i][0] != 0 && i < PF_RULE_MAX_LABEL_COUNT) { nlattr_add_string(nw, PF_LT_LABEL, r->label[i]); i++; } nlattr_set_len(nw, off); return (true); } #define _OUT(_field) offsetof(struct pf_kpool, _field) static const struct nlattr_parser nla_p_pool[] = { { .type = PF_PT_KEY, .off = _OUT(key), .arg = (void *)sizeof(struct pf_poolhashkey), .cb = nlattr_get_bytes }, { .type = PF_PT_COUNTER, .off = _OUT(counter), .cb = nlattr_get_in6_addr }, { .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = nlattr_get_uint32 }, { .type = PF_PT_PROXY_SRC_PORT, .off = _OUT(proxy_port[0]), .cb = nlattr_get_uint16 }, { .type = PF_PT_PROXY_DST_PORT, .off = _OUT(proxy_port[1]), .cb = nlattr_get_uint16 }, { .type = PF_PT_OPTS, .off = _OUT(opts), .cb = nlattr_get_uint8 }, { .type = PF_PT_MAPE, .off = _OUT(mape), .arg = &mape_portset_parser, .cb = nlattr_get_nested }, }; NL_DECLARE_ATTR_PARSER(pool_parser, nla_p_pool); #undef _OUT static bool nlattr_add_pool(struct nl_writer *nw, int attrtype, const struct pf_kpool *pool) { int off = nlattr_add_nested(nw, attrtype); nlattr_add(nw, PF_PT_KEY, sizeof(struct pf_poolhashkey), &pool->key); nlattr_add_in6_addr(nw, PF_PT_COUNTER, (const struct in6_addr *)&pool->counter); nlattr_add_u32(nw, PF_PT_TBLIDX, pool->tblidx); nlattr_add_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]); nlattr_add_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]); nlattr_add_u8(nw, PF_PT_OPTS, pool->opts); nlattr_add_mape_portset(nw, PF_PT_MAPE, &pool->mape); nlattr_set_len(nw, off); return (true); } #define _OUT(_field) offsetof(struct pf_rule_uid, _field) static const struct nlattr_parser nla_p_rule_uid[] = { { .type = PF_RUT_UID_LOW, .off = _OUT(uid[0]), .cb = nlattr_get_uint32 }, { .type = PF_RUT_UID_HIGH, .off = _OUT(uid[1]), .cb = nlattr_get_uint32 }, { .type = PF_RUT_OP, .off = _OUT(op), .cb = nlattr_get_uint8 }, }; NL_DECLARE_ATTR_PARSER(rule_uid_parser, nla_p_rule_uid); #undef _OUT static bool nlattr_add_rule_uid(struct nl_writer *nw, int attrtype, const struct pf_rule_uid *u) { int off = nlattr_add_nested(nw, attrtype); nlattr_add_u32(nw, PF_RUT_UID_LOW, u->uid[0]); nlattr_add_u32(nw, PF_RUT_UID_HIGH, u->uid[1]); nlattr_add_u8(nw, PF_RUT_OP, u->op); nlattr_set_len(nw, off); return (true); } struct nl_parsed_timeouts { uint32_t timeouts[PFTM_MAX]; uint32_t i; }; static int nlattr_get_pf_timeout(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target) { struct nl_parsed_timeouts *t = (struct nl_parsed_timeouts *)target; int ret; if (t->i >= PFTM_MAX) return (E2BIG); ret = nlattr_get_uint32(nla, npt, NULL, &t->timeouts[t->i]); if (ret == 0) t->i++; return (ret); } #define _OUT(_field) offsetof(struct nl_parsed_timeout, _field) static const struct nlattr_parser nla_p_timeouts[] = { { .type = PF_TT_TIMEOUT, .off = 0, .cb = nlattr_get_pf_timeout }, }; NL_DECLARE_ATTR_PARSER(timeout_parser, nla_p_timeouts); #undef _OUT static int nlattr_get_nested_timeouts(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target) { struct nl_parsed_timeouts parsed_timeouts = { }; int error; /* Assumes target points to the beginning of the structure */ error = nl_parse_header(NLA_DATA(nla), NLA_DATA_LEN(nla), &timeout_parser, npt, &parsed_timeouts); if (error != 0) return (error); memcpy(target, parsed_timeouts.timeouts, sizeof(parsed_timeouts.timeouts)); return (0); } static bool nlattr_add_timeout(struct nl_writer *nw, int attrtype, uint32_t *timeout) { int off = nlattr_add_nested(nw, attrtype); for (int i = 0; i < PFTM_MAX; i++) nlattr_add_u32(nw, PF_RT_TIMEOUT, timeout[i]); nlattr_set_len(nw, off); return (true); } #define _OUT(_field) offsetof(struct pf_krule, _field) static const struct nlattr_parser nla_p_rule[] = { { .type = PF_RT_SRC, .off = _OUT(src), .arg = &rule_addr_parser,.cb = nlattr_get_nested }, { .type = PF_RT_DST, .off = _OUT(dst), .arg = &rule_addr_parser,.cb = nlattr_get_nested }, { .type = PF_RT_RIDENTIFIER, .off = _OUT(ridentifier), .cb = nlattr_get_uint32 }, { .type = PF_RT_LABELS, .off = _OUT(label), .arg = &rule_labels_parser,.cb = nlattr_get_nested_pf_rule_labels }, { .type = PF_RT_IFNAME, .off = _OUT(ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, { .type = PF_RT_QNAME, .off = _OUT(qname), .arg = (void *)PF_QNAME_SIZE, .cb = nlattr_get_chara }, { .type = PF_RT_PQNAME, .off = _OUT(pqname), .arg = (void *)PF_QNAME_SIZE, .cb = nlattr_get_chara }, { .type = PF_RT_TAGNAME, .off = _OUT(tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = nlattr_get_chara }, { .type = PF_RT_MATCH_TAGNAME, .off = _OUT(match_tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = nlattr_get_chara }, { .type = PF_RT_OVERLOAD_TBLNAME, .off = _OUT(overload_tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara }, { .type = PF_RT_RPOOL, .off = _OUT(rpool), .arg = &pool_parser, .cb = nlattr_get_nested }, { .type = PF_RT_OS_FINGERPRINT, .off = _OUT(os_fingerprint), .cb = nlattr_get_uint32 }, { .type = PF_RT_RTABLEID, .off = _OUT(rtableid), .cb = nlattr_get_uint32 }, { .type = PF_RT_TIMEOUT, .off = _OUT(timeout), .arg = &timeout_parser, .cb = nlattr_get_nested_timeouts }, { .type = PF_RT_MAX_STATES, .off = _OUT(max_states), .cb = nlattr_get_uint32 }, { .type = PF_RT_MAX_SRC_NODES, .off = _OUT(max_src_nodes), .cb = nlattr_get_uint32 }, { .type = PF_RT_MAX_SRC_STATES, .off = _OUT(max_src_states), .cb = nlattr_get_uint32 }, { .type = PF_RT_MAX_SRC_CONN_RATE_LIMIT, .off = _OUT(max_src_conn_rate.limit), .cb = nlattr_get_uint32 }, { .type = PF_RT_MAX_SRC_CONN_RATE_SECS, .off = _OUT(max_src_conn_rate.seconds), .cb = nlattr_get_uint32 }, { .type = PF_RT_DNPIPE, .off = _OUT(dnpipe), .cb = nlattr_get_uint16 }, { .type = PF_RT_DNRPIPE, .off = _OUT(dnrpipe), .cb = nlattr_get_uint16 }, { .type = PF_RT_DNFLAGS, .off = _OUT(free_flags), .cb = nlattr_get_uint32 }, { .type = PF_RT_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, { .type = PF_RT_PROB, .off = _OUT(prob), .cb = nlattr_get_uint32 }, { .type = PF_RT_CUID, .off = _OUT(cuid), .cb = nlattr_get_uint32 }, {. type = PF_RT_CPID, .off = _OUT(cpid), .cb = nlattr_get_uint32 }, { .type = PF_RT_RETURN_ICMP, .off = _OUT(return_icmp), .cb = nlattr_get_uint16 }, { .type = PF_RT_RETURN_ICMP6, .off = _OUT(return_icmp6), .cb = nlattr_get_uint16 }, { .type = PF_RT_MAX_MSS, .off = _OUT(max_mss), .cb = nlattr_get_uint16 }, { .type = PF_RT_SCRUB_FLAGS, .off = _OUT(scrub_flags), .cb = nlattr_get_uint16 }, { .type = PF_RT_UID, .off = _OUT(uid), .arg = &rule_uid_parser, .cb = nlattr_get_nested }, { .type = PF_RT_GID, .off = _OUT(gid), .arg = &rule_uid_parser, .cb = nlattr_get_nested }, { .type = PF_RT_RULE_FLAG, .off = _OUT(rule_flag), .cb = nlattr_get_uint32 }, { .type = PF_RT_ACTION, .off = _OUT(action), .cb = nlattr_get_uint8 }, { .type = PF_RT_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 }, { .type = PF_RT_LOG, .off = _OUT(log), .cb = nlattr_get_uint8 }, { .type = PF_RT_LOGIF, .off = _OUT(logif), .cb = nlattr_get_uint8 }, { .type = PF_RT_QUICK, .off = _OUT(quick), .cb = nlattr_get_uint8 }, { .type = PF_RT_IF_NOT, .off = _OUT(ifnot), .cb = nlattr_get_uint8 }, { .type = PF_RT_MATCH_TAG_NOT, .off = _OUT(match_tag_not), .cb = nlattr_get_uint8 }, { .type = PF_RT_NATPASS, .off = _OUT(natpass), .cb = nlattr_get_uint8 }, { .type = PF_RT_KEEP_STATE, .off = _OUT(keep_state), .cb = nlattr_get_uint8 }, { .type = PF_RT_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, { .type = PF_RT_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 }, { .type = PF_RT_TYPE, .off = _OUT(type), .cb = nlattr_get_uint8 }, { .type = PF_RT_CODE, .off = _OUT(code), .cb = nlattr_get_uint8 }, { .type = PF_RT_FLAGS, .off = _OUT(flags), .cb = nlattr_get_uint8 }, { .type = PF_RT_FLAGSET, .off = _OUT(flagset), .cb = nlattr_get_uint8 }, { .type = PF_RT_MIN_TTL, .off = _OUT(min_ttl), .cb = nlattr_get_uint8 }, { .type = PF_RT_ALLOW_OPTS, .off = _OUT(allow_opts), .cb = nlattr_get_uint8 }, { .type = PF_RT_RT, .off = _OUT(rt), .cb = nlattr_get_uint8 }, { .type = PF_RT_RETURN_TTL, .off = _OUT(return_ttl), .cb = nlattr_get_uint8 }, { .type = PF_RT_TOS, .off = _OUT(tos), .cb = nlattr_get_uint8 }, { .type = PF_RT_SET_TOS, .off = _OUT(set_tos), .cb = nlattr_get_uint8 }, { .type = PF_RT_ANCHOR_RELATIVE, .off = _OUT(anchor_relative), .cb = nlattr_get_uint8 }, { .type = PF_RT_ANCHOR_WILDCARD, .off = _OUT(anchor_wildcard), .cb = nlattr_get_uint8 }, { .type = PF_RT_FLUSH, .off = _OUT(flush), .cb = nlattr_get_uint8 }, { .type = PF_RT_PRIO, .off = _OUT(prio), .cb = nlattr_get_uint8 }, { .type = PF_RT_SET_PRIO, .off = _OUT(set_prio[0]), .cb = nlattr_get_uint8 }, { .type = PF_RT_SET_PRIO_REPLY, .off = _OUT(set_prio[1]), .cb = nlattr_get_uint8 }, { .type = PF_RT_DIVERT_ADDRESS, .off = _OUT(divert.addr), .cb = nlattr_get_in6_addr }, { .type = PF_RT_DIVERT_PORT, .off = _OUT(divert.port), .cb = nlattr_get_uint16 }, { .type = PF_RT_RCV_IFNAME, .off = _OUT(rcv_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, }; NL_DECLARE_ATTR_PARSER(rule_parser, nla_p_rule); #undef _OUT struct nl_parsed_addrule { struct pf_krule *rule; uint32_t ticket; uint32_t pool_ticket; char *anchor; char *anchor_call; }; #define _IN(_field) offsetof(struct genlmsghdr, _field) #define _OUT(_field) offsetof(struct nl_parsed_addrule, _field) static const struct nlattr_parser nla_p_addrule[] = { { .type = PF_ART_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, { .type = PF_ART_POOL_TICKET, .off = _OUT(pool_ticket), .cb = nlattr_get_uint32 }, { .type = PF_ART_ANCHOR, .off = _OUT(anchor), .cb = nlattr_get_string }, { .type = PF_ART_ANCHOR_CALL, .off = _OUT(anchor_call), .cb = nlattr_get_string }, { .type = PF_ART_RULE, .off = _OUT(rule), .arg = &rule_parser, .cb = nlattr_get_nested_ptr } }; static const struct nlfield_parser nlf_p_addrule[] = { }; #undef _IN #undef _OUT NL_DECLARE_PARSER(addrule_parser, struct genlmsghdr, nlf_p_addrule, nla_p_addrule); static int pf_handle_addrule(struct nlmsghdr *hdr, struct nl_pstate *npt) { int error; struct nl_parsed_addrule attrs = {}; attrs.rule = pf_krule_alloc(); error = nl_parse_nlmsg(hdr, &addrule_parser, npt, &attrs); if (error != 0) { pf_free_rule(attrs.rule); return (error); } error = pf_ioctl_addrule(attrs.rule, attrs.ticket, attrs.pool_ticket, attrs.anchor, attrs.anchor_call, nlp_get_cred(npt->nlp)->cr_uid, hdr->nlmsg_pid); return (error); } #define _IN(_field) offsetof(struct genlmsghdr, _field) #define _OUT(_field) offsetof(struct pfioc_rule, _field) static const struct nlattr_parser nla_p_getrules[] = { { .type = PF_GR_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, { .type = PF_GR_ACTION, .off = _OUT(rule.action), .cb = nlattr_get_uint8 }, }; static const struct nlfield_parser nlf_p_getrules[] = { }; #undef _IN #undef _OUT NL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, nlf_p_getrules, nla_p_getrules); static int pf_handle_getrules(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pfioc_rule attrs = {}; int error; struct nl_writer *nw = npt->nw; struct genlmsghdr *ghdr_new; error = nl_parse_nlmsg(hdr, &getrules_parser, npt, &attrs); if (error != 0) return (error); if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) return (ENOMEM); ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_GETRULES; ghdr_new->version = 0; ghdr_new->reserved = 0; error = pf_ioctl_getrules(&attrs); if (error != 0) goto out; nlattr_add_u32(nw, PF_GR_NR, attrs.nr); nlattr_add_u32(nw, PF_GR_TICKET, attrs.ticket); if (!nlmsg_end(nw)) { error = ENOMEM; goto out; } return (0); out: nlmsg_abort(nw); return (error); } struct nl_parsed_get_rule { char anchor[MAXPATHLEN]; uint8_t action; uint32_t nr; uint32_t ticket; uint8_t clear; }; #define _IN(_field) offsetof(struct genlmsghdr, _field) #define _OUT(_field) offsetof(struct nl_parsed_get_rule, _field) static const struct nlattr_parser nla_p_getrule[] = { { .type = PF_GR_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, { .type = PF_GR_ACTION, .off = _OUT(action), .cb = nlattr_get_uint8 }, { .type = PF_GR_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, { .type = PF_GR_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, { .type = PF_GR_CLEAR, .off = _OUT(clear), .cb = nlattr_get_uint8 }, }; static const struct nlfield_parser nlf_p_getrule[] = { }; #undef _IN #undef _OUT NL_DECLARE_PARSER(getrule_parser, struct genlmsghdr, nlf_p_getrule, nla_p_getrule); static int pf_handle_getrule(struct nlmsghdr *hdr, struct nl_pstate *npt) { char anchor_call[MAXPATHLEN]; struct nl_parsed_get_rule attrs = {}; struct nl_writer *nw = npt->nw; struct genlmsghdr *ghdr_new; struct pf_kruleset *ruleset; struct pf_krule *rule; int rs_num; int error; error = nl_parse_nlmsg(hdr, &getrule_parser, npt, &attrs); if (error != 0) return (error); if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) return (ENOMEM); ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_GETRULE; ghdr_new->version = 0; ghdr_new->reserved = 0; PF_RULES_WLOCK(); ruleset = pf_find_kruleset(attrs.anchor); if (ruleset == NULL) { PF_RULES_WUNLOCK(); error = ENOENT; goto out; } rs_num = pf_get_ruleset_number(attrs.action); if (rs_num >= PF_RULESET_MAX) { PF_RULES_WUNLOCK(); error = EINVAL; goto out; } if (attrs.ticket != ruleset->rules[rs_num].active.ticket) { PF_RULES_WUNLOCK(); error = EBUSY; goto out; } rule = TAILQ_FIRST(ruleset->rules[rs_num].active.ptr); while ((rule != NULL) && (rule->nr != attrs.nr)) rule = TAILQ_NEXT(rule, entries); if (rule == NULL) { PF_RULES_WUNLOCK(); error = EBUSY; goto out; } nlattr_add_rule_addr(nw, PF_RT_SRC, &rule->src); nlattr_add_rule_addr(nw, PF_RT_DST, &rule->dst); nlattr_add_u32(nw, PF_RT_RIDENTIFIER, rule->ridentifier); nlattr_add_labels(nw, PF_RT_LABELS, rule); nlattr_add_string(nw, PF_RT_IFNAME, rule->ifname); nlattr_add_string(nw, PF_RT_QNAME, rule->qname); nlattr_add_string(nw, PF_RT_PQNAME, rule->pqname); nlattr_add_string(nw, PF_RT_TAGNAME, rule->tagname); nlattr_add_string(nw, PF_RT_MATCH_TAGNAME, rule->match_tagname); nlattr_add_string(nw, PF_RT_OVERLOAD_TBLNAME, rule->overload_tblname); nlattr_add_pool(nw, PF_RT_RPOOL, &rule->rpool); nlattr_add_u32(nw, PF_RT_OS_FINGERPRINT, rule->os_fingerprint); nlattr_add_u32(nw, PF_RT_RTABLEID, rule->rtableid); nlattr_add_timeout(nw, PF_RT_TIMEOUT, rule->timeout); nlattr_add_u32(nw, PF_RT_MAX_STATES, rule->max_states); nlattr_add_u32(nw, PF_RT_MAX_SRC_NODES, rule->max_src_nodes); nlattr_add_u32(nw, PF_RT_MAX_SRC_STATES, rule->max_src_states); nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, rule->max_src_conn_rate.limit); nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, rule->max_src_conn_rate.seconds); nlattr_add_u16(nw, PF_RT_DNPIPE, rule->dnpipe); nlattr_add_u16(nw, PF_RT_DNRPIPE, rule->dnrpipe); nlattr_add_u32(nw, PF_RT_DNFLAGS, rule->free_flags); nlattr_add_u32(nw, PF_RT_NR, rule->nr); nlattr_add_u32(nw, PF_RT_PROB, rule->prob); nlattr_add_u32(nw, PF_RT_CUID, rule->cuid); nlattr_add_u32(nw, PF_RT_CPID, rule->cpid); nlattr_add_u16(nw, PF_RT_RETURN_ICMP, rule->return_icmp); nlattr_add_u16(nw, PF_RT_RETURN_ICMP6, rule->return_icmp6); nlattr_add_u16(nw, PF_RT_RETURN_ICMP6, rule->return_icmp6); nlattr_add_u16(nw, PF_RT_MAX_MSS, rule->max_mss); nlattr_add_u16(nw, PF_RT_SCRUB_FLAGS, rule->scrub_flags); nlattr_add_rule_uid(nw, PF_RT_UID, &rule->uid); nlattr_add_rule_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&rule->gid); nlattr_add_string(nw, PF_RT_RCV_IFNAME, rule->rcv_ifname); nlattr_add_u32(nw, PF_RT_RULE_FLAG, rule->rule_flag); nlattr_add_u8(nw, PF_RT_ACTION, rule->action); nlattr_add_u8(nw, PF_RT_DIRECTION, rule->direction); nlattr_add_u8(nw, PF_RT_LOG, rule->log); nlattr_add_u8(nw, PF_RT_LOGIF, rule->logif); nlattr_add_u8(nw, PF_RT_QUICK, rule->quick); nlattr_add_u8(nw, PF_RT_IF_NOT, rule->ifnot); nlattr_add_u8(nw, PF_RT_MATCH_TAG_NOT, rule->match_tag_not); nlattr_add_u8(nw, PF_RT_NATPASS, rule->natpass); nlattr_add_u8(nw, PF_RT_KEEP_STATE, rule->keep_state); nlattr_add_u8(nw, PF_RT_AF, rule->af); nlattr_add_u8(nw, PF_RT_PROTO, rule->proto); nlattr_add_u8(nw, PF_RT_TYPE, rule->type); nlattr_add_u8(nw, PF_RT_CODE, rule->code); nlattr_add_u8(nw, PF_RT_FLAGS, rule->flags); nlattr_add_u8(nw, PF_RT_FLAGSET, rule->flagset); nlattr_add_u8(nw, PF_RT_MIN_TTL, rule->min_ttl); nlattr_add_u8(nw, PF_RT_ALLOW_OPTS, rule->allow_opts); nlattr_add_u8(nw, PF_RT_RT, rule->rt); nlattr_add_u8(nw, PF_RT_RETURN_TTL, rule->return_ttl); nlattr_add_u8(nw, PF_RT_TOS, rule->tos); nlattr_add_u8(nw, PF_RT_SET_TOS, rule->set_tos); nlattr_add_u8(nw, PF_RT_ANCHOR_RELATIVE, rule->anchor_relative); nlattr_add_u8(nw, PF_RT_ANCHOR_WILDCARD, rule->anchor_wildcard); nlattr_add_u8(nw, PF_RT_FLUSH, rule->flush); nlattr_add_u8(nw, PF_RT_PRIO, rule->prio); nlattr_add_u8(nw, PF_RT_SET_PRIO, rule->set_prio[0]); nlattr_add_u8(nw, PF_RT_SET_PRIO_REPLY, rule->set_prio[1]); nlattr_add_in6_addr(nw, PF_RT_DIVERT_ADDRESS, &rule->divert.addr.v6); nlattr_add_u16(nw, PF_RT_DIVERT_PORT, rule->divert.port); nlattr_add_u64(nw, PF_RT_PACKETS_IN, pf_counter_u64_fetch(&rule->packets[0])); nlattr_add_u64(nw, PF_RT_PACKETS_OUT, pf_counter_u64_fetch(&rule->packets[1])); nlattr_add_u64(nw, PF_RT_BYTES_IN, pf_counter_u64_fetch(&rule->bytes[0])); nlattr_add_u64(nw, PF_RT_BYTES_OUT, pf_counter_u64_fetch(&rule->bytes[1])); nlattr_add_u64(nw, PF_RT_EVALUATIONS, pf_counter_u64_fetch(&rule->evaluations)); nlattr_add_u64(nw, PF_RT_TIMESTAMP, pf_get_timestamp(rule)); nlattr_add_u64(nw, PF_RT_STATES_CUR, counter_u64_fetch(rule->states_cur)); nlattr_add_u64(nw, PF_RT_STATES_TOTAL, counter_u64_fetch(rule->states_tot)); nlattr_add_u64(nw, PF_RT_SRC_NODES, counter_u64_fetch(rule->src_nodes)); error = pf_kanchor_copyout(ruleset, rule, anchor_call, sizeof(anchor_call)); MPASS(error == 0); nlattr_add_string(nw, PF_RT_ANCHOR_CALL, anchor_call); if (attrs.clear) pf_krule_clear_counters(rule); PF_RULES_WUNLOCK(); if (!nlmsg_end(nw)) { error = ENOMEM; goto out; } return (0); out: nlmsg_abort(nw); return (error); } #define _IN(_field) offsetof(struct genlmsghdr, _field) #define _OUT(_field) offsetof(struct pf_kstate_kill, _field) static const struct nlattr_parser nla_p_clear_states[] = { { .type = PF_CS_CMP_ID, .off = _OUT(psk_pfcmp.id), .cb = nlattr_get_uint64 }, { .type = PF_CS_CMP_CREATORID, .off = _OUT(psk_pfcmp.creatorid), .cb = nlattr_get_uint32 }, { .type = PF_CS_CMP_DIR, .off = _OUT(psk_pfcmp.direction), .cb = nlattr_get_uint8 }, { .type = PF_CS_AF, .off = _OUT(psk_af), .cb = nlattr_get_uint8 }, { .type = PF_CS_PROTO, .off = _OUT(psk_proto), .cb = nlattr_get_uint8 }, { .type = PF_CS_SRC, .off = _OUT(psk_src), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, { .type = PF_CS_DST, .off = _OUT(psk_dst), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, { .type = PF_CS_RT_ADDR, .off = _OUT(psk_rt_addr), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, { .type = PF_CS_IFNAME, .off = _OUT(psk_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, { .type = PF_CS_LABEL, .off = _OUT(psk_label), .arg = (void *)PF_RULE_LABEL_SIZE, .cb = nlattr_get_chara }, { .type = PF_CS_KILL_MATCH, .off = _OUT(psk_kill_match), .cb = nlattr_get_bool }, { .type = PF_CS_NAT, .off = _OUT(psk_nat), .cb = nlattr_get_bool }, }; static const struct nlfield_parser nlf_p_clear_states[] = {}; #undef _IN #undef _OUT NL_DECLARE_PARSER(clear_states_parser, struct genlmsghdr, nlf_p_clear_states, nla_p_clear_states); static int pf_handle_killclear_states(struct nlmsghdr *hdr, struct nl_pstate *npt, int cmd) { struct pf_kstate_kill kill = {}; struct epoch_tracker et; struct nl_writer *nw = npt->nw; struct genlmsghdr *ghdr_new; int error; unsigned int killed = 0; error = nl_parse_nlmsg(hdr, &clear_states_parser, npt, &kill); if (error != 0) return (error); if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) return (ENOMEM); ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = cmd; ghdr_new->version = 0; ghdr_new->reserved = 0; NET_EPOCH_ENTER(et); if (cmd == PFNL_CMD_KILLSTATES) pf_killstates(&kill, &killed); else killed = pf_clear_states(&kill); NET_EPOCH_EXIT(et); nlattr_add_u32(nw, PF_CS_KILLED, killed); if (! nlmsg_end(nw)) { error = ENOMEM; goto out; } return (0); out: nlmsg_abort(nw); return (error); } static int pf_handle_clear_states(struct nlmsghdr *hdr, struct nl_pstate *npt) { return (pf_handle_killclear_states(hdr, npt, PFNL_CMD_CLRSTATES)); } static int pf_handle_kill_states(struct nlmsghdr *hdr, struct nl_pstate *npt) { return (pf_handle_killclear_states(hdr, npt, PFNL_CMD_KILLSTATES)); } struct nl_parsed_set_statusif { char ifname[IFNAMSIZ]; }; #define _IN(_field) offsetof(struct genlmsghdr, _field) #define _OUT(_field) offsetof(struct nl_parsed_set_statusif, _field) static const struct nlattr_parser nla_p_set_statusif[] = { { .type = PF_SS_IFNAME, .off = _OUT(ifname), .arg = (const void *)IFNAMSIZ, .cb = nlattr_get_chara }, }; static const struct nlfield_parser nlf_p_set_statusif[] = {}; #undef _IN #undef _OUT NL_DECLARE_PARSER(set_statusif_parser, struct genlmsghdr, nlf_p_set_statusif, nla_p_set_statusif); static int pf_handle_set_statusif(struct nlmsghdr *hdr, struct nl_pstate *npt) { int error; struct nl_parsed_set_statusif attrs = {}; error = nl_parse_nlmsg(hdr, &set_statusif_parser, npt, &attrs); if (error != 0) return (error); PF_RULES_WLOCK(); strlcpy(V_pf_status.ifname, attrs.ifname, IFNAMSIZ); PF_RULES_WUNLOCK(); return (0); } static bool nlattr_add_counters(struct nl_writer *nw, int attr, size_t number, char **names, counter_u64_t *counters) { for (int i = 0; i < number; i++) { int off = nlattr_add_nested(nw, attr); nlattr_add_u32(nw, PF_C_ID, i); nlattr_add_string(nw, PF_C_NAME, names[i]); nlattr_add_u64(nw, PF_C_COUNTER, counter_u64_fetch(counters[i])); nlattr_set_len(nw, off); } return (true); } static bool nlattr_add_fcounters(struct nl_writer *nw, int attr, size_t number, char **names, struct pf_counter_u64 *counters) { for (int i = 0; i < number; i++) { int off = nlattr_add_nested(nw, attr); nlattr_add_u32(nw, PF_C_ID, i); nlattr_add_string(nw, PF_C_NAME, names[i]); nlattr_add_u64(nw, PF_C_COUNTER, pf_counter_u64_fetch(&counters[i])); nlattr_set_len(nw, off); } return (true); } static bool nlattr_add_u64_array(struct nl_writer *nw, int attr, size_t number, uint64_t *array) { int off = nlattr_add_nested(nw, attr); for (size_t i = 0; i < number; i++) nlattr_add_u64(nw, 0, array[i]); nlattr_set_len(nw, off); return (true); } static int pf_handle_get_status(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pf_status s; struct nl_writer *nw = npt->nw; struct genlmsghdr *ghdr_new; char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES; char *pf_lcounter[KLCNT_MAX+1] = KLCNT_NAMES; char *pf_fcounter[FCNT_MAX+1] = FCNT_NAMES; int error; PF_RULES_RLOCK_TRACKER; if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) return (ENOMEM); ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_GET_STATUS; ghdr_new->version = 0; ghdr_new->reserved = 0; PF_RULES_RLOCK(); nlattr_add_string(nw, PF_GS_IFNAME, V_pf_status.ifname); nlattr_add_bool(nw, PF_GS_RUNNING, V_pf_status.running); nlattr_add_u32(nw, PF_GS_SINCE, V_pf_status.since); nlattr_add_u32(nw, PF_GS_DEBUG, V_pf_status.debug); nlattr_add_u32(nw, PF_GS_HOSTID, ntohl(V_pf_status.hostid)); nlattr_add_u32(nw, PF_GS_STATES, V_pf_status.states); nlattr_add_u32(nw, PF_GS_SRC_NODES, V_pf_status.src_nodes); nlattr_add_u32(nw, PF_GS_REASSEMBLE, V_pf_status.reass); nlattr_add_u32(nw, PF_GS_SYNCOOKIES_ACTIVE, V_pf_status.syncookies_active); nlattr_add_counters(nw, PF_GS_COUNTERS, PFRES_MAX, pf_reasons, V_pf_status.counters); nlattr_add_counters(nw, PF_GS_LCOUNTERS, KLCNT_MAX, pf_lcounter, V_pf_status.lcounters); nlattr_add_fcounters(nw, PF_GS_FCOUNTERS, FCNT_MAX, pf_fcounter, V_pf_status.fcounters); nlattr_add_counters(nw, PF_GS_SCOUNTERS, SCNT_MAX, pf_fcounter, V_pf_status.scounters); pfi_update_status(V_pf_status.ifname, &s); nlattr_add_u64_array(nw, PF_GS_BCOUNTERS, 2 * 2, (uint64_t *)s.bcounters); nlattr_add_u64_array(nw, PF_GS_PCOUNTERS, 2 * 2 * 2, (uint64_t *)s.pcounters); nlattr_add(nw, PF_GS_CHKSUM, PF_MD5_DIGEST_LENGTH, V_pf_status.pf_chksum); PF_RULES_RUNLOCK(); if (!nlmsg_end(nw)) { error = ENOMEM; goto out; } return (0); out: nlmsg_abort(nw); return (error); } static int pf_handle_clear_status(struct nlmsghdr *hdr, struct nl_pstate *npt) { pf_ioctl_clear_status(); return (0); } struct pf_nl_natlook { sa_family_t af; uint8_t direction; uint8_t proto; struct pf_addr src; struct pf_addr dst; uint16_t sport; uint16_t dport; }; #define _IN(_field) offsetof(struct genlmsghdr, _field) #define _OUT(_field) offsetof(struct pf_nl_natlook, _field) static const struct nlattr_parser nla_p_natlook[] = { { .type = PF_NL_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, { .type = PF_NL_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 }, { .type = PF_NL_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 }, { .type = PF_NL_SRC_ADDR, .off = _OUT(src), .cb = nlattr_get_in6_addr }, { .type = PF_NL_DST_ADDR, .off = _OUT(dst), .cb = nlattr_get_in6_addr }, { .type = PF_NL_SRC_PORT, .off = _OUT(sport), .cb = nlattr_get_uint16 }, { .type = PF_NL_DST_PORT, .off = _OUT(dport), .cb = nlattr_get_uint16 }, }; static const struct nlfield_parser nlf_p_natlook[] = {}; #undef _IN #undef _OUT NL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, nlf_p_natlook, nla_p_natlook); static int pf_handle_natlook(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pf_nl_natlook attrs = {}; struct pf_state_key_cmp key = {}; struct nl_writer *nw = npt->nw; struct pf_state_key *sk; struct pf_kstate *state; struct genlmsghdr *ghdr_new; int error, m; int sidx, didx; error = nl_parse_nlmsg(hdr, &natlook_parser, npt, &attrs); if (error != 0) return (error); if (attrs.proto == 0 || PF_AZERO(&attrs.src, attrs.af) || PF_AZERO(&attrs.dst, attrs.af) || ((attrs.proto == IPPROTO_TCP || attrs.proto == IPPROTO_UDP) && (attrs.sport == 0 || attrs.dport == 0))) return (EINVAL); /* NATLOOK src and dst are reversed, so reverse sidx/didx */ sidx = (attrs.direction == PF_IN) ? 1 : 0; didx = (attrs.direction == PF_IN) ? 0 : 1; key.af = attrs.af; key.proto = attrs.proto; PF_ACPY(&key.addr[sidx], &attrs.src, attrs.af); key.port[sidx] = attrs.sport; PF_ACPY(&key.addr[didx], &attrs.dst, attrs.af); key.port[didx] = attrs.dport; state = pf_find_state_all(&key, attrs.direction, &m); if (state == NULL) return (ENOENT); if (m > 1) { PF_STATE_UNLOCK(state); return (E2BIG); } if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) { PF_STATE_UNLOCK(state); return (ENOMEM); } ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_NATLOOK; ghdr_new->version = 0; ghdr_new->reserved = 0; sk = state->key[sidx]; nlattr_add_in6_addr(nw, PF_NL_SRC_ADDR, &sk->addr[sidx].v6); nlattr_add_in6_addr(nw, PF_NL_DST_ADDR, &sk->addr[didx].v6); nlattr_add_u16(nw, PF_NL_SRC_PORT, sk->port[sidx]); nlattr_add_u16(nw, PF_NL_DST_PORT, sk->port[didx]); PF_STATE_UNLOCK(state); if (!nlmsg_end(nw)) { nlmsg_abort(nw); return (ENOMEM); } return (0); } struct pf_nl_set_debug { uint32_t level; }; #define _OUT(_field) offsetof(struct pf_nl_set_debug, _field) static const struct nlattr_parser nla_p_set_debug[] = { { .type = PF_SD_LEVEL, .off = _OUT(level), .cb = nlattr_get_uint32 }, }; static const struct nlfield_parser nlf_p_set_debug[] = {}; #undef _OUT NL_DECLARE_PARSER(set_debug_parser, struct genlmsghdr, nlf_p_set_debug, nla_p_set_debug); static int pf_handle_set_debug(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pf_nl_set_debug attrs = {}; int error; error = nl_parse_nlmsg(hdr, &set_debug_parser, npt, &attrs); if (error != 0) return (error); PF_RULES_WLOCK(); V_pf_status.debug = attrs.level; PF_RULES_WUNLOCK(); return (0); } struct pf_nl_set_timeout { uint32_t timeout; uint32_t seconds; }; #define _OUT(_field) offsetof(struct pf_nl_set_timeout, _field) static const struct nlattr_parser nla_p_set_timeout[] = { { .type = PF_TO_TIMEOUT, .off = _OUT(timeout), .cb = nlattr_get_uint32 }, { .type = PF_TO_SECONDS, .off = _OUT(seconds), .cb = nlattr_get_uint32 }, }; static const struct nlfield_parser nlf_p_set_timeout[] = {}; #undef _OUT NL_DECLARE_PARSER(set_timeout_parser, struct genlmsghdr, nlf_p_set_timeout, nla_p_set_timeout); static int pf_handle_set_timeout(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pf_nl_set_timeout attrs = {}; int error; error = nl_parse_nlmsg(hdr, &set_timeout_parser, npt, &attrs); if (error != 0) return (error); return (pf_ioctl_set_timeout(attrs.timeout, attrs.seconds, NULL)); } static int pf_handle_get_timeout(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pf_nl_set_timeout attrs = {}; struct nl_writer *nw = npt->nw; struct genlmsghdr *ghdr_new; int error; error = nl_parse_nlmsg(hdr, &set_timeout_parser, npt, &attrs); if (error != 0) return (error); error = pf_ioctl_get_timeout(attrs.timeout, &attrs.seconds); if (error != 0) return (error); if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) return (ENOMEM); ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_GET_TIMEOUT; ghdr_new->version = 0; ghdr_new->reserved = 0; nlattr_add_u32(nw, PF_TO_SECONDS, attrs.seconds); if (!nlmsg_end(nw)) { nlmsg_abort(nw); return (ENOMEM); } return (0); } struct pf_nl_set_limit { uint32_t index; uint32_t limit; }; #define _OUT(_field) offsetof(struct pf_nl_set_limit, _field) static const struct nlattr_parser nla_p_set_limit[] = { { .type = PF_LI_INDEX, .off = _OUT(index), .cb = nlattr_get_uint32 }, { .type = PF_LI_LIMIT, .off = _OUT(limit), .cb = nlattr_get_uint32 }, }; static const struct nlfield_parser nlf_p_set_limit[] = {}; #undef _OUT NL_DECLARE_PARSER(set_limit_parser, struct genlmsghdr, nlf_p_set_limit, nla_p_set_limit); static int pf_handle_set_limit(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pf_nl_set_limit attrs = {}; int error; error = nl_parse_nlmsg(hdr, &set_limit_parser, npt, &attrs); if (error != 0) return (error); return (pf_ioctl_set_limit(attrs.index, attrs.limit, NULL)); } static int pf_handle_get_limit(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pf_nl_set_limit attrs = {}; struct nl_writer *nw = npt->nw; struct genlmsghdr *ghdr_new; int error; error = nl_parse_nlmsg(hdr, &set_limit_parser, npt, &attrs); if (error != 0) return (error); error = pf_ioctl_get_limit(attrs.index, &attrs.limit); if (error != 0) return (error); if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) return (ENOMEM); ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_GET_LIMIT; ghdr_new->version = 0; ghdr_new->reserved = 0; nlattr_add_u32(nw, PF_LI_LIMIT, attrs.limit); if (!nlmsg_end(nw)) { nlmsg_abort(nw); return (ENOMEM); } return (0); } static int pf_handle_begin_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct nl_writer *nw = npt->nw; struct genlmsghdr *ghdr_new; uint32_t ticket; int error; error = pf_ioctl_begin_addrs(&ticket); if (error != 0) return (error); if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) return (ENOMEM); ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_BEGIN_ADDRS; ghdr_new->version = 0; ghdr_new->reserved = 0; nlattr_add_u32(nw, PF_BA_TICKET, ticket); if (!nlmsg_end(nw)) { nlmsg_abort(nw); return (ENOMEM); } return (0); } static bool nlattr_add_pool_addr(struct nl_writer *nw, int attrtype, struct pf_pooladdr *a) { int off; off = nlattr_add_nested(nw, attrtype); nlattr_add_addr_wrap(nw, PF_PA_ADDR, &a->addr); nlattr_add_string(nw, PF_PA_IFNAME, a->ifname); nlattr_set_len(nw, off); return (true); } #define _OUT(_field) offsetof(struct pf_pooladdr, _field) static const struct nlattr_parser nla_p_pool_addr[] = { { .type = PF_PA_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = nlattr_get_nested }, { .type = PF_PA_IFNAME, .off = _OUT(ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, }; NL_DECLARE_ATTR_PARSER(pool_addr_parser, nla_p_pool_addr); #undef _OUT #define _OUT(_field) offsetof(struct pfioc_pooladdr, _field) static const struct nlattr_parser nla_p_add_addr[] = { { .type = PF_AA_ACTION, .off = _OUT(action), .cb = nlattr_get_uint32 }, { .type = PF_AA_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, { .type = PF_AA_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, { .type = PF_AA_R_NUM, .off = _OUT(r_num), .cb = nlattr_get_uint32 }, { .type = PF_AA_R_ACTION, .off = _OUT(r_action), .cb = nlattr_get_uint8 }, { .type = PF_AA_R_LAST, .off = _OUT(r_last), .cb = nlattr_get_uint8 }, { .type = PF_AA_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, { .type = PF_AA_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, { .type = PF_AA_ADDR, .off = _OUT(addr), .arg = &pool_addr_parser, .cb = nlattr_get_nested }, }; static const struct nlfield_parser nlf_p_add_addr[] = {}; #undef _OUT NL_DECLARE_PARSER(add_addr_parser, struct genlmsghdr, nlf_p_add_addr, nla_p_add_addr); static int pf_handle_add_addr(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pfioc_pooladdr attrs = { 0 }; int error; error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); if (error != 0) return (error); error = pf_ioctl_add_addr(&attrs); return (error); } static int pf_handle_get_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pfioc_pooladdr attrs = { 0 }; struct nl_writer *nw = npt->nw; struct genlmsghdr *ghdr_new; int error; error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); if (error != 0) return (error); error = pf_ioctl_get_addrs(&attrs); if (error != 0) return (error); if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) return (ENOMEM); ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_GET_ADDRS; ghdr_new->version = 0; ghdr_new->reserved = 0; nlattr_add_u32(nw, PF_AA_NR, attrs.nr); if (!nlmsg_end(nw)) { nlmsg_abort(nw); return (ENOMEM); } return (error); } static int pf_handle_get_addr(struct nlmsghdr *hdr, struct nl_pstate *npt) { struct pfioc_pooladdr attrs = { 0 }; struct nl_writer *nw = npt->nw; struct genlmsghdr *ghdr_new; int error; error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); if (error != 0) return (error); error = pf_ioctl_get_addr(&attrs); if (error != 0) return (error); if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) return (ENOMEM); ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); ghdr_new->cmd = PFNL_CMD_GET_ADDRS; ghdr_new->version = 0; ghdr_new->reserved = 0; nlattr_add_u32(nw, PF_AA_ACTION, attrs.action); nlattr_add_u32(nw, PF_AA_TICKET, attrs.ticket); nlattr_add_u32(nw, PF_AA_NR, attrs.nr); nlattr_add_u32(nw, PF_AA_R_NUM, attrs.r_num); nlattr_add_u8(nw, PF_AA_R_ACTION, attrs.r_action); nlattr_add_u8(nw, PF_AA_R_LAST, attrs.r_last); nlattr_add_u8(nw, PF_AA_AF, attrs.af); nlattr_add_string(nw, PF_AA_ANCHOR, attrs.anchor); nlattr_add_pool_addr(nw, PF_AA_ADDR, &attrs.addr); if (!nlmsg_end(nw)) { nlmsg_abort(nw); return (ENOMEM); } return (0); } static const struct nlhdr_parser *all_parsers[] = { &state_parser, &addrule_parser, &getrules_parser, &clear_states_parser, &set_statusif_parser, &natlook_parser, &set_debug_parser, &set_timeout_parser, &set_limit_parser, &pool_addr_parser, &add_addr_parser, }; static int family_id; static const struct genl_cmd pf_cmds[] = { { .cmd_num = PFNL_CMD_GETSTATES, .cmd_name = "GETSTATES", .cmd_cb = pf_handle_getstates, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_GETCREATORS, .cmd_name = "GETCREATORS", .cmd_cb = pf_handle_getcreators, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_START, .cmd_name = "START", .cmd_cb = pf_handle_start, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_STOP, .cmd_name = "STOP", .cmd_cb = pf_handle_stop, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_ADDRULE, .cmd_name = "ADDRULE", .cmd_cb = pf_handle_addrule, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_GETRULES, .cmd_name = "GETRULES", .cmd_cb = pf_handle_getrules, .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_GETRULE, .cmd_name = "GETRULE", .cmd_cb = pf_handle_getrule, .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_CLRSTATES, .cmd_name = "CLRSTATES", .cmd_cb = pf_handle_clear_states, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_KILLSTATES, .cmd_name = "KILLSTATES", .cmd_cb = pf_handle_kill_states, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_SET_STATUSIF, .cmd_name = "SETSTATUSIF", .cmd_cb = pf_handle_set_statusif, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_GET_STATUS, .cmd_name = "GETSTATUS", .cmd_cb = pf_handle_get_status, .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_CLEAR_STATUS, .cmd_name = "CLEARSTATUS", .cmd_cb = pf_handle_clear_status, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_NATLOOK, .cmd_name = "NATLOOK", .cmd_cb = pf_handle_natlook, .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_SET_DEBUG, .cmd_name = "SET_DEBUG", .cmd_cb = pf_handle_set_debug, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_SET_TIMEOUT, .cmd_name = "SET_TIMEOUT", .cmd_cb = pf_handle_set_timeout, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_GET_TIMEOUT, .cmd_name = "GET_TIMEOUT", .cmd_cb = pf_handle_get_timeout, .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_SET_LIMIT, .cmd_name = "SET_LIMIT", .cmd_cb = pf_handle_set_limit, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_GET_LIMIT, .cmd_name = "GET_LIMIT", .cmd_cb = pf_handle_get_limit, .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_BEGIN_ADDRS, .cmd_name = "BEGIN_ADDRS", .cmd_cb = pf_handle_begin_addrs, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_ADD_ADDR, .cmd_name = "ADD_ADDR", .cmd_cb = pf_handle_add_addr, .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_GET_ADDRS, .cmd_name = "GET_ADDRS", .cmd_cb = pf_handle_get_addrs, .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, { .cmd_num = PFNL_CMD_GET_ADDR, .cmd_name = "GET_ADDRS", .cmd_cb = pf_handle_get_addr, .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, .cmd_priv = PRIV_NETINET_PF, }, }; void pf_nl_register(void) { NL_VERIFY_PARSERS(all_parsers); family_id = genl_register_family(PFNL_FAMILY_NAME, 0, 2, PFNL_CMD_MAX); genl_register_cmds(PFNL_FAMILY_NAME, pf_cmds, NL_ARRAY_LEN(pf_cmds)); } void pf_nl_unregister(void) { genl_unregister_family(PFNL_FAMILY_NAME); }