/* $OpenBSD: pf_ioctl.c,v 1.209 2008/06/29 08:42:15 mcbride Exp $ */ /*add $OpenBSD: pf_ioctl.c,v 1.212 2009/02/15 20:42:33 mbalmer Exp $ */ /* * Copyright (c) 2010 The DragonFly Project. All rights reserved. * * Copyright (c) 2001 Daniel Hartmeier * Copyright (c) 2002,2003 Henning Brauer * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - 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 COPYRIGHT HOLDERS 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 * COPYRIGHT HOLDERS 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. * * Effort sponsored in part by the Defense Advanced Research Projects * Agency (DARPA) and Air Force Research Laboratory, Air Force * Materiel Command, USAF, under agreement number F30602-01-2-0537. * */ #include "opt_inet.h" #include "opt_inet6.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef INET6 #include #include #endif /* INET6 */ #ifdef ALTQ #include #endif #include #include u_int rt_numfibs = RT_NUMFIBS; void pfattach(void); struct pf_pool *pf_get_pool(char *, u_int32_t, u_int8_t, u_int32_t, u_int8_t, u_int8_t, u_int8_t); void pf_mv_pool(struct pf_palist *, struct pf_palist *); void pf_empty_pool(struct pf_palist *); #ifdef ALTQ int pf_begin_altq(u_int32_t *); int pf_rollback_altq(u_int32_t); int pf_commit_altq(u_int32_t); int pf_enable_altq(struct pf_altq *); int pf_disable_altq(struct pf_altq *); #endif /* ALTQ */ int pf_begin_rules(u_int32_t *, int, const char *); int pf_rollback_rules(u_int32_t, int, char *); int pf_setup_pfsync_matching(struct pf_ruleset *); void pf_hash_rule(MD5_CTX *, struct pf_rule *); void pf_hash_rule_addr(MD5_CTX *, struct pf_rule_addr *); int pf_commit_rules(u_int32_t, int, char *); int pf_addr_setup(struct pf_ruleset *, struct pf_addr_wrap *, sa_family_t); void pf_addr_copyout(struct pf_addr_wrap *); struct pf_rule pf_default_rule; struct lock pf_consistency_lock; struct lock pf_global_statetbl_lock; #ifdef ALTQ static int pf_altq_running; #endif #define TAGID_MAX 50000 TAILQ_HEAD(pf_tags, pf_tagname) pf_tags = TAILQ_HEAD_INITIALIZER(pf_tags), pf_qids = TAILQ_HEAD_INITIALIZER(pf_qids); #if (PF_QNAME_SIZE != PF_TAG_NAME_SIZE) #error PF_QNAME_SIZE must be equal to PF_TAG_NAME_SIZE #endif u_int16_t tagname2tag(struct pf_tags *, char *); void tag2tagname(struct pf_tags *, u_int16_t, char *); void tag_unref(struct pf_tags *, u_int16_t); int pf_rtlabel_add(struct pf_addr_wrap *); void pf_rtlabel_remove(struct pf_addr_wrap *); void pf_rtlabel_copyout(struct pf_addr_wrap *); #define DPFPRINTF(n, x) if (pf_status.debug >= (n)) kprintf x static cdev_t pf_dev; static MALLOC_DEFINE(M_PFRULEPL, "pfrulepl", "pf rule pool list"); static MALLOC_DEFINE(M_PFALTQPL, "pfaltqpl", "pf altq pool list"); static MALLOC_DEFINE(M_PFPOOLADDRPL, "pfpooladdrpl", "pf pool address pool list"); static MALLOC_DEFINE(M_PFFRENTPL, "pffrent", "pf frent pool list"); MALLOC_DEFINE(M_PF, "pf", "pf general"); /* * XXX - These are new and need to be checked when moveing to a new version */ static void pf_clear_states(void); static int pf_clear_tables(void); static void pf_clear_srcnodes(void); /* * XXX - These are new and need to be checked when moveing to a new version */ /* * Wrapper functions for pfil(9) hooks */ static int pf_check_in(void *arg, struct mbuf **m, struct ifnet *ifp, int dir); static int pf_check_out(void *arg, struct mbuf **m, struct ifnet *ifp, int dir); #ifdef INET6 static int pf_check6_in(void *arg, struct mbuf **m, struct ifnet *ifp, int dir); static int pf_check6_out(void *arg, struct mbuf **m, struct ifnet *ifp, int dir); #endif static int hook_pf(void); static int dehook_pf(void); static int shutdown_pf(void); static int pf_load(void); static int pf_unload(void); d_open_t pfopen; d_close_t pfclose; d_ioctl_t pfioctl; static struct dev_ops pf_ops = { /* XXX convert to port model */ { PF_NAME, 73, 0 }, .d_open = pfopen, .d_close = pfclose, .d_ioctl = pfioctl }; static volatile int pf_pfil_hooked = 0; int pf_end_threads = 0; int debug_pfugidhack = 0; SYSCTL_INT(_debug, OID_AUTO, pfugidhack, CTLFLAG_RW, &debug_pfugidhack, 0, "Enable/disable pf user/group rules mpsafe hack"); void pfattach(void) { u_int32_t *my_timeout = pf_default_rule.timeout; int nn; if (!rn_inithead(&pf_maskhead, NULL, 0)) { kprintf("pf mask radix tree create failed\n"); return; } kmalloc_create(&pf_state_pl, "pf state pool list"); kmalloc_raise_limit(pf_state_pl, 0); kmalloc_create(&pf_frent_pl, "pf fragment pool list"); kmalloc_raise_limit(pf_frent_pl, 0); kmalloc_create(&pf_cent_pl, "pf cent pool list"); kmalloc_raise_limit(pf_cent_pl, 0); /* * Allocate pcpu array. * * NOTE: The state table also has a global element which we index * at [ncpus], so it needs one extra slot. */ tree_src_tracking = kmalloc(sizeof(*tree_src_tracking) * ncpus, M_PF, M_WAITOK | M_ZERO); tree_id = kmalloc(sizeof(*tree_id) * ncpus, M_PF, M_WAITOK | M_ZERO); state_list = kmalloc(sizeof(*state_list) * ncpus, M_PF, M_WAITOK | M_ZERO); pf_counters = kmalloc(sizeof(*pf_counters) * ncpus, M_PF, M_WAITOK | M_ZERO); pf_statetbl = kmalloc(sizeof(*pf_statetbl) * (ncpus + 1), M_PF, M_WAITOK | M_ZERO); purge_cur = kmalloc(sizeof(*purge_cur) * ncpus, M_PF, M_WAITOK | M_ZERO); pfr_initialize(); pfi_initialize(); pf_osfp_initialize(); pf_pool_limits[PF_LIMIT_STATES].pp = pf_state_pl; pf_pool_limits[PF_LIMIT_STATES].limit = PFSTATE_HIWAT; pf_pool_limits[PF_LIMIT_FRAGS].pp = pf_frent_pl; pf_pool_limits[PF_LIMIT_FRAGS].limit = PFFRAG_FRENT_HIWAT; if (ctob(physmem) <= 100*1024*1024) pf_pool_limits[PF_LIMIT_TABLE_ENTRIES].limit = PFR_KENTRY_HIWAT_SMALL; for (nn = 0; nn < ncpus; ++nn) { RB_INIT(&tree_src_tracking[nn]); RB_INIT(&tree_id[nn]); } RB_INIT(&pf_anchors); pf_init_ruleset(&pf_main_ruleset); TAILQ_INIT(&pf_altqs[0]); TAILQ_INIT(&pf_altqs[1]); TAILQ_INIT(&pf_pabuf); pf_altqs_active = &pf_altqs[0]; pf_altqs_inactive = &pf_altqs[1]; for (nn = 0; nn < ncpus; ++nn) TAILQ_INIT(&state_list[nn]); /* default rule should never be garbage collected */ pf_default_rule.entries.tqe_prev = &pf_default_rule.entries.tqe_next; pf_default_rule.action = PF_PASS; pf_default_rule.nr = (uint32_t)(-1); pf_default_rule.rtableid = -1; /* initialize default timeouts */ my_timeout[PFTM_TCP_FIRST_PACKET] = 120; /* First TCP packet */ my_timeout[PFTM_TCP_OPENING] = 30; /* No response yet */ my_timeout[PFTM_TCP_ESTABLISHED] = 24*60*60; /* Established */ my_timeout[PFTM_TCP_CLOSING] = 15 * 60; /* Half closed */ my_timeout[PFTM_TCP_FIN_WAIT] = 45; /* Got both FINs */ my_timeout[PFTM_TCP_CLOSED] = 90; /* Got a RST */ my_timeout[PFTM_UDP_FIRST_PACKET] = 60; /* First UDP packet */ my_timeout[PFTM_UDP_SINGLE] = 30; /* Unidirectional */ my_timeout[PFTM_UDP_MULTIPLE] = 60; /* Bidirectional */ my_timeout[PFTM_ICMP_FIRST_PACKET] = 20; /* First ICMP packet */ my_timeout[PFTM_ICMP_ERROR_REPLY] = 10; /* Got error response */ my_timeout[PFTM_OTHER_FIRST_PACKET] = 60; /* First packet */ my_timeout[PFTM_OTHER_SINGLE] = 30; /* Unidirectional */ my_timeout[PFTM_OTHER_MULTIPLE] = 60; /* Bidirectional */ my_timeout[PFTM_FRAG] = 30; /* Fragment expire */ my_timeout[PFTM_INTERVAL] = 10; /* Expire interval */ my_timeout[PFTM_SRC_NODE] = 0; /* Source Tracking */ my_timeout[PFTM_TS_DIFF] = 30; /* Allowed TS diff */ my_timeout[PFTM_ADAPTIVE_START] = PFSTATE_ADAPT_START; my_timeout[PFTM_ADAPTIVE_END] = PFSTATE_ADAPT_END; pf_normalize_init(); bzero(&pf_status, sizeof(pf_status)); pf_status.debug = PF_DEBUG_URGENT; /* XXX do our best to avoid a conflict */ pf_status.hostid = karc4random(); if (kthread_create(pf_purge_thread, NULL, NULL, "pfpurge")) panic("pfpurge thread"); } int pfopen(struct dev_open_args *ap) { lwkt_gettoken(&pf_token); cdev_t dev = ap->a_head.a_dev; if (minor(dev) >= 1) { lwkt_reltoken(&pf_token); return (ENXIO); } lwkt_reltoken(&pf_token); return (0); } int pfclose(struct dev_close_args *ap) { lwkt_gettoken(&pf_token); cdev_t dev = ap->a_head.a_dev; if (minor(dev) >= 1) { lwkt_reltoken(&pf_token); return (ENXIO); } lwkt_reltoken(&pf_token); return (0); } struct pf_pool * pf_get_pool(char *anchor, u_int32_t ticket, u_int8_t rule_action, u_int32_t rule_number, u_int8_t r_last, u_int8_t active, u_int8_t check_ticket) { struct pf_ruleset *ruleset; struct pf_rule *rule; int rs_num; ruleset = pf_find_ruleset(anchor); if (ruleset == NULL) return (NULL); rs_num = pf_get_ruleset_number(rule_action); if (rs_num >= PF_RULESET_MAX) return (NULL); if (active) { if (check_ticket && ticket != ruleset->rules[rs_num].active.ticket) return (NULL); if (r_last) rule = TAILQ_LAST(ruleset->rules[rs_num].active.ptr, pf_rulequeue); else rule = TAILQ_FIRST(ruleset->rules[rs_num].active.ptr); } else { if (check_ticket && ticket != ruleset->rules[rs_num].inactive.ticket) return (NULL); if (r_last) rule = TAILQ_LAST(ruleset->rules[rs_num].inactive.ptr, pf_rulequeue); else rule = TAILQ_FIRST(ruleset->rules[rs_num].inactive.ptr); } if (!r_last) { while ((rule != NULL) && (rule->nr != rule_number)) rule = TAILQ_NEXT(rule, entries); } if (rule == NULL) return (NULL); return (&rule->rpool); } void pf_mv_pool(struct pf_palist *poola, struct pf_palist *poolb) { struct pf_pooladdr *mv_pool_pa; while ((mv_pool_pa = TAILQ_FIRST(poola)) != NULL) { TAILQ_REMOVE(poola, mv_pool_pa, entries); TAILQ_INSERT_TAIL(poolb, mv_pool_pa, entries); } } void pf_empty_pool(struct pf_palist *poola) { struct pf_pooladdr *empty_pool_pa; while ((empty_pool_pa = TAILQ_FIRST(poola)) != NULL) { pfi_dynaddr_remove(&empty_pool_pa->addr); pf_tbladdr_remove(&empty_pool_pa->addr); pfi_kif_unref(empty_pool_pa->kif, PFI_KIF_REF_RULE); TAILQ_REMOVE(poola, empty_pool_pa, entries); kfree(empty_pool_pa, M_PFPOOLADDRPL); } } void pf_rm_rule(struct pf_rulequeue *rulequeue, struct pf_rule *rule) { if (rulequeue != NULL) { if (rule->states_cur <= 0) { /* * XXX - we need to remove the table *before* detaching * the rule to make sure the table code does not delete * the anchor under our feet. */ pf_tbladdr_remove(&rule->src.addr); pf_tbladdr_remove(&rule->dst.addr); if (rule->overload_tbl) pfr_detach_table(rule->overload_tbl); } TAILQ_REMOVE(rulequeue, rule, entries); rule->entries.tqe_prev = NULL; rule->nr = -1; } if (rule->states_cur > 0 || rule->src_nodes > 0 || rule->entries.tqe_prev != NULL) return; pf_tag_unref(rule->tag); pf_tag_unref(rule->match_tag); #ifdef ALTQ if (rule->pqid != rule->qid) pf_qid_unref(rule->pqid); pf_qid_unref(rule->qid); #endif pf_rtlabel_remove(&rule->src.addr); pf_rtlabel_remove(&rule->dst.addr); pfi_dynaddr_remove(&rule->src.addr); pfi_dynaddr_remove(&rule->dst.addr); if (rulequeue == NULL) { pf_tbladdr_remove(&rule->src.addr); pf_tbladdr_remove(&rule->dst.addr); if (rule->overload_tbl) pfr_detach_table(rule->overload_tbl); } pfi_kif_unref(rule->kif, PFI_KIF_REF_RULE); pf_anchor_remove(rule); pf_empty_pool(&rule->rpool.list); kfree(rule, M_PFRULEPL); } u_int16_t tagname2tag(struct pf_tags *head, char *tagname) { struct pf_tagname *tag, *p = NULL; u_int16_t new_tagid = 1; TAILQ_FOREACH(tag, head, entries) if (strcmp(tagname, tag->name) == 0) { tag->ref++; return (tag->tag); } /* * to avoid fragmentation, we do a linear search from the beginning * and take the first free slot we find. if there is none or the list * is empty, append a new entry at the end. */ /* new entry */ if (!TAILQ_EMPTY(head)) for (p = TAILQ_FIRST(head); p != NULL && p->tag == new_tagid; p = TAILQ_NEXT(p, entries)) new_tagid = p->tag + 1; if (new_tagid > TAGID_MAX) return (0); /* allocate and fill new struct pf_tagname */ tag = kmalloc(sizeof(*tag), M_TEMP, M_WAITOK); strlcpy(tag->name, tagname, sizeof(tag->name)); tag->tag = new_tagid; tag->ref++; if (p != NULL) /* insert new entry before p */ TAILQ_INSERT_BEFORE(p, tag, entries); else /* either list empty or no free slot in between */ TAILQ_INSERT_TAIL(head, tag, entries); return (tag->tag); } void tag2tagname(struct pf_tags *head, u_int16_t tagid, char *p) { struct pf_tagname *tag; TAILQ_FOREACH(tag, head, entries) if (tag->tag == tagid) { strlcpy(p, tag->name, PF_TAG_NAME_SIZE); return; } } void tag_unref(struct pf_tags *head, u_int16_t tag) { struct pf_tagname *p, *next; if (tag == 0) return; for (p = TAILQ_FIRST(head); p != NULL; p = next) { next = TAILQ_NEXT(p, entries); if (tag == p->tag) { if (--p->ref == 0) { TAILQ_REMOVE(head, p, entries); kfree(p, M_TEMP); } break; } } } u_int16_t pf_tagname2tag(char *tagname) { return (tagname2tag(&pf_tags, tagname)); } void pf_tag2tagname(u_int16_t tagid, char *p) { tag2tagname(&pf_tags, tagid, p); } void pf_tag_ref(u_int16_t tag) { struct pf_tagname *t; TAILQ_FOREACH(t, &pf_tags, entries) if (t->tag == tag) break; if (t != NULL) t->ref++; } void pf_tag_unref(u_int16_t tag) { tag_unref(&pf_tags, tag); } int pf_rtlabel_add(struct pf_addr_wrap *a) { return (0); } void pf_rtlabel_remove(struct pf_addr_wrap *a) { } void pf_rtlabel_copyout(struct pf_addr_wrap *a) { if (a->type == PF_ADDR_RTLABEL && a->v.rtlabel) strlcpy(a->v.rtlabelname, "?", sizeof(a->v.rtlabelname)); } #ifdef ALTQ u_int32_t pf_qname2qid(char *qname) { return ((u_int32_t)tagname2tag(&pf_qids, qname)); } void pf_qid2qname(u_int32_t qid, char *p) { tag2tagname(&pf_qids, (u_int16_t)qid, p); } void pf_qid_unref(u_int32_t qid) { tag_unref(&pf_qids, (u_int16_t)qid); } int pf_begin_altq(u_int32_t *ticket) { struct pf_altq *altq; int error = 0; /* Purge the old altq list */ while ((altq = TAILQ_FIRST(pf_altqs_inactive)) != NULL) { TAILQ_REMOVE(pf_altqs_inactive, altq, entries); if (altq->qname[0] == 0) { /* detach and destroy the discipline */ error = altq_remove(altq); } else pf_qid_unref(altq->qid); kfree(altq, M_PFALTQPL); } if (error) return (error); *ticket = ++ticket_altqs_inactive; altqs_inactive_open = 1; return (0); } int pf_rollback_altq(u_int32_t ticket) { struct pf_altq *altq; int error = 0; if (!altqs_inactive_open || ticket != ticket_altqs_inactive) return (0); /* Purge the old altq list */ while ((altq = TAILQ_FIRST(pf_altqs_inactive)) != NULL) { TAILQ_REMOVE(pf_altqs_inactive, altq, entries); if (altq->qname[0] == 0) { /* detach and destroy the discipline */ error = altq_remove(altq); } else pf_qid_unref(altq->qid); kfree(altq, M_PFALTQPL); } altqs_inactive_open = 0; return (error); } int pf_commit_altq(u_int32_t ticket) { struct pf_altqqueue *old_altqs; struct pf_altq *altq; int err, error = 0; if (!altqs_inactive_open || ticket != ticket_altqs_inactive) return (EBUSY); /* swap altqs, keep the old. */ crit_enter(); old_altqs = pf_altqs_active; pf_altqs_active = pf_altqs_inactive; pf_altqs_inactive = old_altqs; ticket_altqs_active = ticket_altqs_inactive; /* Attach new disciplines */ TAILQ_FOREACH(altq, pf_altqs_active, entries) { if (altq->qname[0] == 0) { /* attach the discipline */ error = altq_pfattach(altq); if (error) { crit_exit(); return (error); } } } /* Purge the old altq list */ while ((altq = TAILQ_FIRST(pf_altqs_inactive)) != NULL) { TAILQ_REMOVE(pf_altqs_inactive, altq, entries); if (altq->qname[0] == 0) { /* detach and destroy the discipline */ if (pf_altq_running) error = pf_disable_altq(altq); err = altq_pfdetach(altq); if (err != 0 && error == 0) error = err; err = altq_remove(altq); if (err != 0 && error == 0) error = err; } else pf_qid_unref(altq->qid); kfree(altq, M_PFALTQPL); } crit_exit(); altqs_inactive_open = 0; return (error); } int pf_enable_altq(struct pf_altq *altq) { struct ifnet *ifp; struct tb_profile tb; int error = 0; ifnet_lock(); if ((ifp = ifunit(altq->ifname)) == NULL) { ifnet_unlock(); return (EINVAL); } if (ifp->if_snd.altq_type != ALTQT_NONE) error = altq_enable(&ifp->if_snd); /* set tokenbucket regulator */ if (error == 0 && ifp != NULL && ALTQ_IS_ENABLED(&ifp->if_snd)) { tb.rate = altq->ifbandwidth; tb.depth = altq->tbrsize; crit_enter(); error = tbr_set(&ifp->if_snd, &tb); crit_exit(); } ifnet_unlock(); return (error); } int pf_disable_altq(struct pf_altq *altq) { struct ifnet *ifp; struct tb_profile tb; int error; ifnet_lock(); if ((ifp = ifunit(altq->ifname)) == NULL) { ifnet_unlock(); return (EINVAL); } /* * when the discipline is no longer referenced, it was overridden * by a new one. if so, just return. */ if (altq->altq_disc != ifp->if_snd.altq_disc) { ifnet_unlock(); return (0); } error = altq_disable(&ifp->if_snd); if (error == 0) { /* clear tokenbucket regulator */ tb.rate = 0; crit_enter(); error = tbr_set(&ifp->if_snd, &tb); crit_exit(); } ifnet_unlock(); return (error); } #endif /* ALTQ */ int pf_begin_rules(u_int32_t *ticket, int rs_num, const char *anchor) { struct pf_ruleset *rs; struct pf_rule *rule; if (rs_num < 0 || rs_num >= PF_RULESET_MAX) return (EINVAL); rs = pf_find_or_create_ruleset(anchor); if (rs == NULL) return (EINVAL); while ((rule = TAILQ_FIRST(rs->rules[rs_num].inactive.ptr)) != NULL) { pf_rm_rule(rs->rules[rs_num].inactive.ptr, rule); rs->rules[rs_num].inactive.rcount--; } *ticket = ++rs->rules[rs_num].inactive.ticket; rs->rules[rs_num].inactive.open = 1; return (0); } int pf_rollback_rules(u_int32_t ticket, int rs_num, char *anchor) { struct pf_ruleset *rs; struct pf_rule *rule; if (rs_num < 0 || rs_num >= PF_RULESET_MAX) return (EINVAL); rs = pf_find_ruleset(anchor); if (rs == NULL || !rs->rules[rs_num].inactive.open || rs->rules[rs_num].inactive.ticket != ticket) return (0); while ((rule = TAILQ_FIRST(rs->rules[rs_num].inactive.ptr)) != NULL) { pf_rm_rule(rs->rules[rs_num].inactive.ptr, rule); rs->rules[rs_num].inactive.rcount--; } rs->rules[rs_num].inactive.open = 0; return (0); } #define PF_MD5_UPD(st, elm) \ MD5Update(ctx, (u_int8_t *) &(st)->elm, sizeof((st)->elm)) #define PF_MD5_UPD_STR(st, elm) \ MD5Update(ctx, (u_int8_t *) (st)->elm, strlen((st)->elm)) #define PF_MD5_UPD_HTONL(st, elm, stor) do { \ (stor) = htonl((st)->elm); \ MD5Update(ctx, (u_int8_t *) &(stor), sizeof(u_int32_t));\ } while (0) #define PF_MD5_UPD_HTONS(st, elm, stor) do { \ (stor) = htons((st)->elm); \ MD5Update(ctx, (u_int8_t *) &(stor), sizeof(u_int16_t));\ } while (0) void pf_hash_rule_addr(MD5_CTX *ctx, struct pf_rule_addr *pfr) { PF_MD5_UPD(pfr, addr.type); switch (pfr->addr.type) { case PF_ADDR_DYNIFTL: PF_MD5_UPD(pfr, addr.v.ifname); PF_MD5_UPD(pfr, addr.iflags); break; case PF_ADDR_TABLE: PF_MD5_UPD(pfr, addr.v.tblname); break; case PF_ADDR_ADDRMASK: /* XXX ignore af? */ PF_MD5_UPD(pfr, addr.v.a.addr.addr32); PF_MD5_UPD(pfr, addr.v.a.mask.addr32); break; case PF_ADDR_RTLABEL: PF_MD5_UPD(pfr, addr.v.rtlabelname); break; } PF_MD5_UPD(pfr, port[0]); PF_MD5_UPD(pfr, port[1]); PF_MD5_UPD(pfr, neg); PF_MD5_UPD(pfr, port_op); } void pf_hash_rule(MD5_CTX *ctx, struct pf_rule *rule) { u_int16_t x; u_int32_t y; pf_hash_rule_addr(ctx, &rule->src); pf_hash_rule_addr(ctx, &rule->dst); PF_MD5_UPD_STR(rule, label); PF_MD5_UPD_STR(rule, ifname); PF_MD5_UPD_STR(rule, match_tagname); PF_MD5_UPD_HTONS(rule, match_tag, x); /* dup? */ PF_MD5_UPD_HTONL(rule, os_fingerprint, y); PF_MD5_UPD_HTONL(rule, prob, y); PF_MD5_UPD_HTONL(rule, uid.uid[0], y); PF_MD5_UPD_HTONL(rule, uid.uid[1], y); PF_MD5_UPD(rule, uid.op); PF_MD5_UPD_HTONL(rule, gid.gid[0], y); PF_MD5_UPD_HTONL(rule, gid.gid[1], y); PF_MD5_UPD(rule, gid.op); PF_MD5_UPD_HTONL(rule, rule_flag, y); PF_MD5_UPD(rule, action); PF_MD5_UPD(rule, direction); PF_MD5_UPD(rule, af); PF_MD5_UPD(rule, quick); PF_MD5_UPD(rule, ifnot); PF_MD5_UPD(rule, match_tag_not); PF_MD5_UPD(rule, natpass); PF_MD5_UPD(rule, keep_state); PF_MD5_UPD(rule, proto); PF_MD5_UPD(rule, type); PF_MD5_UPD(rule, code); PF_MD5_UPD(rule, flags); PF_MD5_UPD(rule, flagset); PF_MD5_UPD(rule, allow_opts); PF_MD5_UPD(rule, rt); PF_MD5_UPD(rule, tos); } int pf_commit_rules(u_int32_t ticket, int rs_num, char *anchor) { struct pf_ruleset *rs; struct pf_rule *rule, **old_array; struct pf_rulequeue *old_rules; int error; u_int32_t old_rcount; if (rs_num < 0 || rs_num >= PF_RULESET_MAX) return (EINVAL); rs = pf_find_ruleset(anchor); if (rs == NULL || !rs->rules[rs_num].inactive.open || ticket != rs->rules[rs_num].inactive.ticket) return (EBUSY); /* Calculate checksum for the main ruleset */ if (rs == &pf_main_ruleset) { error = pf_setup_pfsync_matching(rs); if (error != 0) return (error); } /* Swap rules, keep the old. */ crit_enter(); old_rules = rs->rules[rs_num].active.ptr; old_rcount = rs->rules[rs_num].active.rcount; old_array = rs->rules[rs_num].active.ptr_array; rs->rules[rs_num].active.ptr = rs->rules[rs_num].inactive.ptr; rs->rules[rs_num].active.ptr_array = rs->rules[rs_num].inactive.ptr_array; rs->rules[rs_num].active.rcount = rs->rules[rs_num].inactive.rcount; rs->rules[rs_num].inactive.ptr = old_rules; rs->rules[rs_num].inactive.ptr_array = old_array; rs->rules[rs_num].inactive.rcount = old_rcount; rs->rules[rs_num].active.ticket = rs->rules[rs_num].inactive.ticket; pf_calc_skip_steps(rs->rules[rs_num].active.ptr); /* Purge the old rule list. */ while ((rule = TAILQ_FIRST(old_rules)) != NULL) pf_rm_rule(old_rules, rule); if (rs->rules[rs_num].inactive.ptr_array) kfree(rs->rules[rs_num].inactive.ptr_array, M_TEMP); rs->rules[rs_num].inactive.ptr_array = NULL; rs->rules[rs_num].inactive.rcount = 0; rs->rules[rs_num].inactive.open = 0; pf_remove_if_empty_ruleset(rs); crit_exit(); return (0); } int pf_setup_pfsync_matching(struct pf_ruleset *rs) { MD5_CTX ctx; struct pf_rule *rule; int rs_cnt; u_int8_t digest[PF_MD5_DIGEST_LENGTH]; MD5Init(&ctx); for (rs_cnt = 0; rs_cnt < PF_RULESET_MAX; rs_cnt++) { /* XXX PF_RULESET_SCRUB as well? */ if (rs_cnt == PF_RULESET_SCRUB) continue; if (rs->rules[rs_cnt].inactive.ptr_array) kfree(rs->rules[rs_cnt].inactive.ptr_array, M_TEMP); rs->rules[rs_cnt].inactive.ptr_array = NULL; if (rs->rules[rs_cnt].inactive.rcount) { rs->rules[rs_cnt].inactive.ptr_array = kmalloc(sizeof(caddr_t) * rs->rules[rs_cnt].inactive.rcount, M_TEMP, M_WAITOK); } TAILQ_FOREACH(rule, rs->rules[rs_cnt].inactive.ptr, entries) { pf_hash_rule(&ctx, rule); (rs->rules[rs_cnt].inactive.ptr_array)[rule->nr] = rule; } } MD5Final(digest, &ctx); memcpy(pf_status.pf_chksum, digest, sizeof(pf_status.pf_chksum)); return (0); } int pf_addr_setup(struct pf_ruleset *ruleset, struct pf_addr_wrap *addr, sa_family_t af) { if (pfi_dynaddr_setup(addr, af) || pf_tbladdr_setup(ruleset, addr)) return (EINVAL); return (0); } void pf_addr_copyout(struct pf_addr_wrap *addr) { pfi_dynaddr_copyout(addr); pf_tbladdr_copyout(addr); pf_rtlabel_copyout(addr); } int pfioctl(struct dev_ioctl_args *ap) { u_long cmd = ap->a_cmd; caddr_t addr = ap->a_data; struct pf_pooladdr *pa = NULL; struct pf_pool *pool = NULL; int error = 0; lwkt_gettoken(&pf_token); /* XXX keep in sync with switch() below */ if (securelevel > 1) { switch (cmd) { case DIOCGETRULES: case DIOCGETRULE: case DIOCGETADDRS: case DIOCGETADDR: case DIOCGETSTATE: case DIOCSETSTATUSIF: case DIOCGETSTATUS: case DIOCCLRSTATUS: case DIOCNATLOOK: case DIOCSETDEBUG: case DIOCGETSTATES: case DIOCGETTIMEOUT: case DIOCCLRRULECTRS: case DIOCGETLIMIT: case DIOCGETALTQS: case DIOCGETALTQ: case DIOCGETQSTATS: case DIOCGETRULESETS: case DIOCGETRULESET: case DIOCRGETTABLES: case DIOCRGETTSTATS: case DIOCRCLRTSTATS: case DIOCRCLRADDRS: case DIOCRADDADDRS: case DIOCRDELADDRS: case DIOCRSETADDRS: case DIOCRGETADDRS: case DIOCRGETASTATS: case DIOCRCLRASTATS: case DIOCRTSTADDRS: case DIOCOSFPGET: case DIOCGETSRCNODES: case DIOCCLRSRCNODES: case DIOCIGETIFACES: case DIOCSETIFFLAG: case DIOCCLRIFFLAG: case DIOCGIFSPEED: break; case DIOCRCLRTABLES: case DIOCRADDTABLES: case DIOCRDELTABLES: case DIOCRSETTFLAGS: if (((struct pfioc_table *)addr)->pfrio_flags & PFR_FLAG_DUMMY) break; /* dummy operation ok */ lwkt_reltoken(&pf_token); return (EPERM); default: lwkt_reltoken(&pf_token); return (EPERM); } } if (!(ap->a_fflag & FWRITE)) { switch (cmd) { case DIOCGETRULES: case DIOCGETADDRS: case DIOCGETADDR: case DIOCGETSTATE: case DIOCGETSTATUS: case DIOCGETSTATES: case DIOCGETTIMEOUT: case DIOCGETLIMIT: case DIOCGETALTQS: case DIOCGETALTQ: case DIOCGETQSTATS: case DIOCGETRULESETS: case DIOCGETRULESET: case DIOCNATLOOK: case DIOCRGETTABLES: case DIOCRGETTSTATS: case DIOCRGETADDRS: case DIOCRGETASTATS: case DIOCRTSTADDRS: case DIOCOSFPGET: case DIOCGETSRCNODES: case DIOCIGETIFACES: case DIOCGIFSPEED: break; case DIOCRCLRTABLES: case DIOCRADDTABLES: case DIOCRDELTABLES: case DIOCRCLRTSTATS: case DIOCRCLRADDRS: case DIOCRADDADDRS: case DIOCRDELADDRS: case DIOCRSETADDRS: case DIOCRSETTFLAGS: if (((struct pfioc_table *)addr)->pfrio_flags & PFR_FLAG_DUMMY) break; /* dummy operation ok */ lwkt_reltoken(&pf_token); return (EACCES); case DIOCGETRULE: if (((struct pfioc_rule *)addr)->action == PF_GET_CLR_CNTR) { lwkt_reltoken(&pf_token); return (EACCES); } break; default: lwkt_reltoken(&pf_token); return (EACCES); } } switch (cmd) { case DIOCSTART: if (pf_status.running) error = EEXIST; else { error = hook_pf(); if (error) { DPFPRINTF(PF_DEBUG_MISC, ("pf: pfil registration fail\n")); break; } pf_status.running = 1; pf_status.since = time_second; if (pf_status.stateid == 0) { pf_status.stateid = time_second; pf_status.stateid = pf_status.stateid << 32; } DPFPRINTF(PF_DEBUG_MISC, ("pf: started\n")); } break; case DIOCSTOP: if (!pf_status.running) error = ENOENT; else { pf_status.running = 0; error = dehook_pf(); if (error) { pf_status.running = 1; DPFPRINTF(PF_DEBUG_MISC, ("pf: pfil unregistration failed\n")); } pf_status.since = time_second; DPFPRINTF(PF_DEBUG_MISC, ("pf: stopped\n")); } break; case DIOCADDRULE: { struct pfioc_rule *pr = (struct pfioc_rule *)addr; struct pf_ruleset *ruleset; struct pf_rule *rule, *tail; struct pf_pooladdr *pa; int rs_num; pr->anchor[sizeof(pr->anchor) - 1] = 0; ruleset = pf_find_ruleset(pr->anchor); if (ruleset == NULL) { error = EINVAL; break; } rs_num = pf_get_ruleset_number(pr->rule.action); if (rs_num >= PF_RULESET_MAX) { error = EINVAL; break; } if (pr->rule.return_icmp >> 8 > ICMP_MAXTYPE) { error = EINVAL; break; } if (pr->ticket != ruleset->rules[rs_num].inactive.ticket) { error = EBUSY; break; } if (pr->pool_ticket != ticket_pabuf) { error = EBUSY; break; } rule = kmalloc(sizeof(struct pf_rule), M_PFRULEPL, M_WAITOK); bcopy(&pr->rule, rule, sizeof(struct pf_rule)); rule->cuid = ap->a_cred->cr_ruid; rule->cpid = 0; rule->anchor = NULL; rule->kif = NULL; TAILQ_INIT(&rule->rpool.list); /* initialize refcounting */ rule->states_cur = 0; rule->src_nodes = 0; rule->entries.tqe_prev = NULL; #ifndef INET if (rule->af == AF_INET) { kfree(rule, M_PFRULEPL); error = EAFNOSUPPORT; break; } #endif /* INET */ #ifndef INET6 if (rule->af == AF_INET6) { kfree(rule, M_PFRULEPL); error = EAFNOSUPPORT; break; } #endif /* INET6 */ tail = TAILQ_LAST(ruleset->rules[rs_num].inactive.ptr, pf_rulequeue); if (tail) rule->nr = tail->nr + 1; else rule->nr = 0; if (rule->ifname[0]) { rule->kif = pfi_kif_get(rule->ifname); if (rule->kif == NULL) { kfree(rule, M_PFRULEPL); error = EINVAL; break; } pfi_kif_ref(rule->kif, PFI_KIF_REF_RULE); } if (rule->rtableid > 0 && rule->rtableid > rt_numfibs) error = EBUSY; #ifdef ALTQ /* set queue IDs */ if (rule->qname[0] != 0) { if ((rule->qid = pf_qname2qid(rule->qname)) == 0) error = EBUSY; else if (rule->pqname[0] != 0) { if ((rule->pqid = pf_qname2qid(rule->pqname)) == 0) error = EBUSY; } else rule->pqid = rule->qid; } #endif if (rule->tagname[0]) if ((rule->tag = pf_tagname2tag(rule->tagname)) == 0) error = EBUSY; if (rule->match_tagname[0]) if ((rule->match_tag = pf_tagname2tag(rule->match_tagname)) == 0) error = EBUSY; if (rule->rt && !rule->direction) error = EINVAL; #if NPFLOG > 0 if (!rule->log) rule->logif = 0; if (rule->logif >= PFLOGIFS_MAX) error = EINVAL; #endif if (pf_rtlabel_add(&rule->src.addr) || pf_rtlabel_add(&rule->dst.addr)) error = EBUSY; if (pf_addr_setup(ruleset, &rule->src.addr, rule->af)) error = EINVAL; if (pf_addr_setup(ruleset, &rule->dst.addr, rule->af)) error = EINVAL; if (pf_anchor_setup(rule, ruleset, pr->anchor_call)) error = EINVAL; TAILQ_FOREACH(pa, &pf_pabuf, entries) if (pf_tbladdr_setup(ruleset, &pa->addr)) error = EINVAL; if (rule->overload_tblname[0]) { if ((rule->overload_tbl = pfr_attach_table(ruleset, rule->overload_tblname)) == NULL) error = EINVAL; else rule->overload_tbl->pfrkt_flags |= PFR_TFLAG_ACTIVE; } pf_mv_pool(&pf_pabuf, &rule->rpool.list); if (((((rule->action == PF_NAT) || (rule->action == PF_RDR) || (rule->action == PF_BINAT)) && rule->anchor == NULL) || (rule->rt > PF_FASTROUTE)) && (TAILQ_FIRST(&rule->rpool.list) == NULL)) error = EINVAL; if (error) { pf_rm_rule(NULL, rule); break; } rule->rpool.cur = TAILQ_FIRST(&rule->rpool.list); rule->evaluations = rule->packets[0] = rule->packets[1] = rule->bytes[0] = rule->bytes[1] = 0; TAILQ_INSERT_TAIL(ruleset->rules[rs_num].inactive.ptr, rule, entries); ruleset->rules[rs_num].inactive.rcount++; break; } case DIOCGETRULES: { struct pfioc_rule *pr = (struct pfioc_rule *)addr; struct pf_ruleset *ruleset; struct pf_rule *tail; int rs_num; pr->anchor[sizeof(pr->anchor) - 1] = 0; ruleset = pf_find_ruleset(pr->anchor); if (ruleset == NULL) { error = EINVAL; break; } rs_num = pf_get_ruleset_number(pr->rule.action); if (rs_num >= PF_RULESET_MAX) { error = EINVAL; break; } tail = TAILQ_LAST(ruleset->rules[rs_num].active.ptr, pf_rulequeue); if (tail) pr->nr = tail->nr + 1; else pr->nr = 0; pr->ticket = ruleset->rules[rs_num].active.ticket; break; } case DIOCGETRULE: { struct pfioc_rule *pr = (struct pfioc_rule *)addr; struct pf_ruleset *ruleset; struct pf_rule *rule; int rs_num, i; pr->anchor[sizeof(pr->anchor) - 1] = 0; ruleset = pf_find_ruleset(pr->anchor); if (ruleset == NULL) { error = EINVAL; break; } rs_num = pf_get_ruleset_number(pr->rule.action); if (rs_num >= PF_RULESET_MAX) { error = EINVAL; break; } if (pr->ticket != ruleset->rules[rs_num].active.ticket) { error = EBUSY; break; } rule = TAILQ_FIRST(ruleset->rules[rs_num].active.ptr); while ((rule != NULL) && (rule->nr != pr->nr)) rule = TAILQ_NEXT(rule, entries); if (rule == NULL) { error = EBUSY; break; } bcopy(rule, &pr->rule, sizeof(struct pf_rule)); if (pf_anchor_copyout(ruleset, rule, pr)) { error = EBUSY; break; } pf_addr_copyout(&pr->rule.src.addr); pf_addr_copyout(&pr->rule.dst.addr); for (i = 0; i < PF_SKIP_COUNT; ++i) if (rule->skip[i].ptr == NULL) pr->rule.skip[i].nr = (uint32_t)(-1); else pr->rule.skip[i].nr = rule->skip[i].ptr->nr; if (pr->action == PF_GET_CLR_CNTR) { rule->evaluations = 0; rule->packets[0] = rule->packets[1] = 0; rule->bytes[0] = rule->bytes[1] = 0; rule->states_tot = 0; } break; } case DIOCCHANGERULE: { struct pfioc_rule *pcr = (struct pfioc_rule *)addr; struct pf_ruleset *ruleset; struct pf_rule *oldrule = NULL, *newrule = NULL; u_int32_t nr = 0; int rs_num; if (!(pcr->action == PF_CHANGE_REMOVE || pcr->action == PF_CHANGE_GET_TICKET) && pcr->pool_ticket != ticket_pabuf) { error = EBUSY; break; } if (pcr->action < PF_CHANGE_ADD_HEAD || pcr->action > PF_CHANGE_GET_TICKET) { error = EINVAL; break; } ruleset = pf_find_ruleset(pcr->anchor); if (ruleset == NULL) { error = EINVAL; break; } rs_num = pf_get_ruleset_number(pcr->rule.action); if (rs_num >= PF_RULESET_MAX) { error = EINVAL; break; } if (pcr->action == PF_CHANGE_GET_TICKET) { pcr->ticket = ++ruleset->rules[rs_num].active.ticket; break; } else { if (pcr->ticket != ruleset->rules[rs_num].active.ticket) { error = EINVAL; break; } if (pcr->rule.return_icmp >> 8 > ICMP_MAXTYPE) { error = EINVAL; break; } } if (pcr->action != PF_CHANGE_REMOVE) { newrule = kmalloc(sizeof(struct pf_rule), M_PFRULEPL, M_WAITOK|M_NULLOK); if (newrule == NULL) { error = ENOMEM; break; } bcopy(&pcr->rule, newrule, sizeof(struct pf_rule)); newrule->cuid = ap->a_cred->cr_ruid; newrule->cpid = 0; TAILQ_INIT(&newrule->rpool.list); /* initialize refcounting */ newrule->states_cur = 0; newrule->entries.tqe_prev = NULL; #ifndef INET if (newrule->af == AF_INET) { kfree(newrule, M_PFRULEPL); error = EAFNOSUPPORT; break; } #endif /* INET */ #ifndef INET6 if (newrule->af == AF_INET6) { kfree(newrule, M_PFRULEPL); error = EAFNOSUPPORT; break; } #endif /* INET6 */ if (newrule->ifname[0]) { newrule->kif = pfi_kif_get(newrule->ifname); if (newrule->kif == NULL) { kfree(newrule, M_PFRULEPL); error = EINVAL; break; } pfi_kif_ref(newrule->kif, PFI_KIF_REF_RULE); } else newrule->kif = NULL; if (newrule->rtableid > 0 && newrule->rtableid > rt_numfibs) error = EBUSY; #ifdef ALTQ /* set queue IDs */ if (newrule->qname[0] != 0) { if ((newrule->qid = pf_qname2qid(newrule->qname)) == 0) error = EBUSY; else if (newrule->pqname[0] != 0) { if ((newrule->pqid = pf_qname2qid(newrule->pqname)) == 0) error = EBUSY; } else newrule->pqid = newrule->qid; } #endif /* ALTQ */ if (newrule->tagname[0]) if ((newrule->tag = pf_tagname2tag(newrule->tagname)) == 0) error = EBUSY; if (newrule->match_tagname[0]) if ((newrule->match_tag = pf_tagname2tag( newrule->match_tagname)) == 0) error = EBUSY; if (newrule->rt && !newrule->direction) error = EINVAL; #if NPFLOG > 0 if (!newrule->log) newrule->logif = 0; if (newrule->logif >= PFLOGIFS_MAX) error = EINVAL; #endif if (pf_rtlabel_add(&newrule->src.addr) || pf_rtlabel_add(&newrule->dst.addr)) error = EBUSY; if (pf_addr_setup(ruleset, &newrule->src.addr, newrule->af)) error = EINVAL; if (pf_addr_setup(ruleset, &newrule->dst.addr, newrule->af)) error = EINVAL; if (pf_anchor_setup(newrule, ruleset, pcr->anchor_call)) error = EINVAL; TAILQ_FOREACH(pa, &pf_pabuf, entries) if (pf_tbladdr_setup(ruleset, &pa->addr)) error = EINVAL; if (newrule->overload_tblname[0]) { if ((newrule->overload_tbl = pfr_attach_table( ruleset, newrule->overload_tblname)) == NULL) error = EINVAL; else newrule->overload_tbl->pfrkt_flags |= PFR_TFLAG_ACTIVE; } pf_mv_pool(&pf_pabuf, &newrule->rpool.list); if (((((newrule->action == PF_NAT) || (newrule->action == PF_RDR) || (newrule->action == PF_BINAT) || (newrule->rt > PF_FASTROUTE)) && !newrule->anchor)) && (TAILQ_FIRST(&newrule->rpool.list) == NULL)) error = EINVAL; if (error) { pf_rm_rule(NULL, newrule); break; } newrule->rpool.cur = TAILQ_FIRST(&newrule->rpool.list); newrule->evaluations = 0; newrule->packets[0] = newrule->packets[1] = 0; newrule->bytes[0] = newrule->bytes[1] = 0; } pf_empty_pool(&pf_pabuf); if (pcr->action == PF_CHANGE_ADD_HEAD) oldrule = TAILQ_FIRST( ruleset->rules[rs_num].active.ptr); else if (pcr->action == PF_CHANGE_ADD_TAIL) oldrule = TAILQ_LAST( ruleset->rules[rs_num].active.ptr, pf_rulequeue); else { oldrule = TAILQ_FIRST( ruleset->rules[rs_num].active.ptr); while ((oldrule != NULL) && (oldrule->nr != pcr->nr)) oldrule = TAILQ_NEXT(oldrule, entries); if (oldrule == NULL) { if (newrule != NULL) pf_rm_rule(NULL, newrule); error = EINVAL; break; } } if (pcr->action == PF_CHANGE_REMOVE) { pf_rm_rule(ruleset->rules[rs_num].active.ptr, oldrule); ruleset->rules[rs_num].active.rcount--; } else { if (oldrule == NULL) TAILQ_INSERT_TAIL( ruleset->rules[rs_num].active.ptr, newrule, entries); else if (pcr->action == PF_CHANGE_ADD_HEAD || pcr->action == PF_CHANGE_ADD_BEFORE) TAILQ_INSERT_BEFORE(oldrule, newrule, entries); else TAILQ_INSERT_AFTER( ruleset->rules[rs_num].active.ptr, oldrule, newrule, entries); ruleset->rules[rs_num].active.rcount++; } nr = 0; TAILQ_FOREACH(oldrule, ruleset->rules[rs_num].active.ptr, entries) oldrule->nr = nr++; ruleset->rules[rs_num].active.ticket++; pf_calc_skip_steps(ruleset->rules[rs_num].active.ptr); pf_remove_if_empty_ruleset(ruleset); break; } case DIOCCLRSTATES: { struct pf_state *s, *nexts; struct pfioc_state_kill *psk = (struct pfioc_state_kill *)addr; u_int killed = 0; globaldata_t save_gd = mycpu; int nn; for (nn = 0; nn < ncpus; ++nn) { lwkt_setcpu_self(globaldata_find(nn)); for (s = RB_MIN(pf_state_tree_id, &tree_id[nn]); s; s = nexts) { nexts = RB_NEXT(pf_state_tree_id, &tree_id[nn], s); if (!psk->psk_ifname[0] || !strcmp(psk->psk_ifname, s->kif->pfik_name)) { /* * don't send out individual * delete messages */ s->sync_flags = PFSTATE_NOSYNC; pf_unlink_state(s); killed++; } } } lwkt_setcpu_self(save_gd); psk->psk_killed = killed; pfsync_clear_states(pf_status.hostid, psk->psk_ifname); break; } case DIOCKILLSTATES: { struct pf_state *s, *nexts; struct pf_state_key *sk; struct pf_addr *srcaddr, *dstaddr; u_int16_t srcport, dstport; struct pfioc_state_kill *psk = (struct pfioc_state_kill *)addr; u_int killed = 0; globaldata_t save_gd = mycpu; int nn; if (psk->psk_pfcmp.id) { if (psk->psk_pfcmp.creatorid == 0) psk->psk_pfcmp.creatorid = pf_status.hostid; for (nn = 0; nn < ncpus; ++nn) { lwkt_setcpu_self(globaldata_find(nn)); if ((s = pf_find_state_byid(&psk->psk_pfcmp))) { /* send immediate delete of state */ pfsync_delete_state(s); s->sync_flags |= PFSTATE_NOSYNC; pf_unlink_state(s); ++psk->psk_killed; } } lwkt_setcpu_self(save_gd); break; } for (nn = 0; nn < ncpus; ++nn) { lwkt_setcpu_self(globaldata_find(nn)); for (s = RB_MIN(pf_state_tree_id, &tree_id[nn]); s; s = nexts) { nexts = RB_NEXT(pf_state_tree_id, &tree_id[nn], s); sk = s->key[PF_SK_WIRE]; if (s->direction == PF_OUT) { srcaddr = &sk->addr[1]; dstaddr = &sk->addr[0]; srcport = sk->port[0]; dstport = sk->port[0]; } else { srcaddr = &sk->addr[0]; dstaddr = &sk->addr[1]; srcport = sk->port[0]; dstport = sk->port[0]; } if ((!psk->psk_af || sk->af == psk->psk_af) && (!psk->psk_proto || psk->psk_proto == sk->proto) && PF_MATCHA(psk->psk_src.neg, &psk->psk_src.addr.v.a.addr, &psk->psk_src.addr.v.a.mask, srcaddr, sk->af) && PF_MATCHA(psk->psk_dst.neg, &psk->psk_dst.addr.v.a.addr, &psk->psk_dst.addr.v.a.mask, dstaddr, sk->af) && (psk->psk_src.port_op == 0 || pf_match_port(psk->psk_src.port_op, psk->psk_src.port[0], psk->psk_src.port[1], srcport)) && (psk->psk_dst.port_op == 0 || pf_match_port(psk->psk_dst.port_op, psk->psk_dst.port[0], psk->psk_dst.port[1], dstport)) && (!psk->psk_label[0] || (s->rule.ptr->label[0] && !strcmp(psk->psk_label, s->rule.ptr->label))) && (!psk->psk_ifname[0] || !strcmp(psk->psk_ifname, s->kif->pfik_name))) { /* send immediate delete of state */ pfsync_delete_state(s); s->sync_flags |= PFSTATE_NOSYNC; pf_unlink_state(s); killed++; } } } lwkt_setcpu_self(save_gd); psk->psk_killed = killed; break; } case DIOCADDSTATE: { struct pfioc_state *ps = (struct pfioc_state *)addr; struct pfsync_state *sp = &ps->state; if (sp->timeout >= PFTM_MAX && sp->timeout != PFTM_UNTIL_PACKET) { error = EINVAL; break; } error = pfsync_state_import(sp, PFSYNC_SI_IOCTL); break; } case DIOCGETSTATE: { struct pfioc_state *ps = (struct pfioc_state *)addr; struct pf_state *s; struct pf_state_cmp id_key; globaldata_t save_gd = mycpu; int nn; bcopy(ps->state.id, &id_key.id, sizeof(id_key.id)); id_key.creatorid = ps->state.creatorid; s = NULL; for (nn = 0; nn < ncpus; ++nn) { lwkt_setcpu_self(globaldata_find(nn)); s = pf_find_state_byid(&id_key); if (s) break; } if (s) { pfsync_state_export(&ps->state, s); } else { error = ENOENT; } lwkt_setcpu_self(save_gd); break; } case DIOCGETSTATES: { struct pfioc_states *ps = (struct pfioc_states *)addr; struct pf_state *state; struct pfsync_state *p, *pstore; u_int32_t nr = 0; globaldata_t save_gd = mycpu; int nn; if (ps->ps_len == 0) { nr = pf_status.states; ps->ps_len = sizeof(struct pfsync_state) * nr; break; } pstore = kmalloc(sizeof(*pstore), M_TEMP, M_WAITOK); p = ps->ps_states; for (nn = 0; nn < ncpus; ++nn) { lwkt_setcpu_self(globaldata_find(nn)); state = TAILQ_FIRST(&state_list[nn]); while (state) { if (state->timeout != PFTM_UNLINKED) { if ((nr + 1) * sizeof(*p) > (unsigned)ps->ps_len) { break; } pfsync_state_export(pstore, state); error = copyout(pstore, p, sizeof(*p)); if (error) { kfree(pstore, M_TEMP); lwkt_setcpu_self(save_gd); goto fail; } p++; nr++; } state = TAILQ_NEXT(state, entry_list); } } lwkt_setcpu_self(save_gd); ps->ps_len = sizeof(struct pfsync_state) * nr; kfree(pstore, M_TEMP); break; } case DIOCGETSTATUS: { /* * Retrieve pf_status, merge pcpu counters into pf_status * for user consumption. */ struct pf_status *s = (struct pf_status *)addr; struct pf_counters *pfc; int n; int i; bcopy(&pf_status, s, sizeof(struct pf_status)); for (n = 0; n < ncpus; ++n) { pfc = &pf_counters[n]; for (i = 0; i < PFRES_MAX; ++i) s->counters[i] += pfc->counters[i]; for (i = 0; i < LCNT_MAX; ++i) s->lcounters[i] += pfc->lcounters[i]; for (i = 0; i < FCNT_MAX; ++i) s->fcounters[i] += pfc->fcounters[i]; for (i = 0; i < SCNT_MAX; ++i) s->scounters[i] += pfc->scounters[i]; } pfi_update_status(s->ifname, s); break; } case DIOCSETSTATUSIF: { struct pfioc_if *pi = (struct pfioc_if *)addr; if (pi->ifname[0] == 0) { bzero(pf_status.ifname, IFNAMSIZ); break; } strlcpy(pf_status.ifname, pi->ifname, IFNAMSIZ); break; } case DIOCCLRSTATUS: { int i; bzero(pf_status.counters, sizeof(pf_status.counters)); bzero(pf_status.fcounters, sizeof(pf_status.fcounters)); bzero(pf_status.scounters, sizeof(pf_status.scounters)); for (i = 0; i < ncpus; ++i) { bzero(pf_counters[i].counters, sizeof(pf_counters[0].counters)); bzero(pf_counters[i].fcounters, sizeof(pf_counters[0].fcounters)); bzero(pf_counters[i].scounters, sizeof(pf_counters[0].scounters)); } pf_status.since = time_second; if (*pf_status.ifname) pfi_update_status(pf_status.ifname, NULL); break; } case DIOCNATLOOK: { struct pfioc_natlook *pnl = (struct pfioc_natlook *)addr; struct pf_state_key *sk; struct pf_state *state; struct pf_state_key_cmp key; int m = 0, direction = pnl->direction; int sidx, didx; globaldata_t save_gd = mycpu; int nn; /* NATLOOK src and dst are reversed, so reverse sidx/didx */ sidx = (direction == PF_IN) ? 1 : 0; didx = (direction == PF_IN) ? 0 : 1; if (!pnl->proto || PF_AZERO(&pnl->saddr, pnl->af) || PF_AZERO(&pnl->daddr, pnl->af) || ((pnl->proto == IPPROTO_TCP || pnl->proto == IPPROTO_UDP) && (!pnl->dport || !pnl->sport))) error = EINVAL; else { key.af = pnl->af; key.proto = pnl->proto; PF_ACPY(&key.addr[sidx], &pnl->saddr, pnl->af); key.port[sidx] = pnl->sport; PF_ACPY(&key.addr[didx], &pnl->daddr, pnl->af); key.port[didx] = pnl->dport; state = NULL; for (nn = 0; nn < ncpus; ++nn) { lwkt_setcpu_self(globaldata_find(nn)); state = pf_find_state_all(&key, direction, &m); if (state || m > 1) break; m = 0; } if (m > 1) { error = E2BIG; /* more than one state */ } else if (state != NULL) { sk = state->key[sidx]; PF_ACPY(&pnl->rsaddr, &sk->addr[sidx], sk->af); pnl->rsport = sk->port[sidx]; PF_ACPY(&pnl->rdaddr, &sk->addr[didx], sk->af); pnl->rdport = sk->port[didx]; } else { error = ENOENT; } lwkt_setcpu_self(save_gd); } break; } case DIOCSETTIMEOUT: { struct pfioc_tm *pt = (struct pfioc_tm *)addr; int old; if (pt->timeout < 0 || pt->timeout >= PFTM_MAX || pt->seconds < 0) { error = EINVAL; goto fail; } old = pf_default_rule.timeout[pt->timeout]; if (pt->timeout == PFTM_INTERVAL && pt->seconds == 0) pt->seconds = 1; pf_default_rule.timeout[pt->timeout] = pt->seconds; if (pt->timeout == PFTM_INTERVAL && pt->seconds < old) wakeup(pf_purge_thread); pt->seconds = old; break; } case DIOCGETTIMEOUT: { struct pfioc_tm *pt = (struct pfioc_tm *)addr; if (pt->timeout < 0 || pt->timeout >= PFTM_MAX) { error = EINVAL; goto fail; } pt->seconds = pf_default_rule.timeout[pt->timeout]; break; } case DIOCGETLIMIT: { struct pfioc_limit *pl = (struct pfioc_limit *)addr; if (pl->index < 0 || pl->index >= PF_LIMIT_MAX) { error = EINVAL; goto fail; } pl->limit = pf_pool_limits[pl->index].limit; break; } case DIOCSETLIMIT: { struct pfioc_limit *pl = (struct pfioc_limit *)addr; int old_limit; if (pl->index < 0 || pl->index >= PF_LIMIT_MAX || pf_pool_limits[pl->index].pp == NULL) { error = EINVAL; goto fail; } /* XXX Get an API to set limits on the zone/pool */ old_limit = pf_pool_limits[pl->index].limit; pf_pool_limits[pl->index].limit = pl->limit; pl->limit = old_limit; break; } case DIOCSETDEBUG: { u_int32_t *level = (u_int32_t *)addr; pf_status.debug = *level; break; } case DIOCCLRRULECTRS: { /* obsoleted by DIOCGETRULE with action=PF_GET_CLR_CNTR */ struct pf_ruleset *ruleset = &pf_main_ruleset; struct pf_rule *rule; TAILQ_FOREACH(rule, ruleset->rules[PF_RULESET_FILTER].active.ptr, entries) { rule->evaluations = 0; rule->packets[0] = rule->packets[1] = 0; rule->bytes[0] = rule->bytes[1] = 0; } break; } case DIOCGIFSPEED: { struct pf_ifspeed *psp = (struct pf_ifspeed *)addr; struct pf_ifspeed ps; struct ifnet *ifp; if (psp->ifname[0] != 0) { /* Can we completely trust user-land? */ strlcpy(ps.ifname, psp->ifname, IFNAMSIZ); ifnet_lock(); ifp = ifunit(ps.ifname); if (ifp ) psp->baudrate = ifp->if_baudrate; else error = EINVAL; ifnet_unlock(); } else error = EINVAL; break; } #ifdef ALTQ case DIOCSTARTALTQ: { struct pf_altq *altq; /* enable all altq interfaces on active list */ TAILQ_FOREACH(altq, pf_altqs_active, entries) { if (altq->qname[0] == 0) { error = pf_enable_altq(altq); if (error != 0) break; } } if (error == 0) pf_altq_running = 1; DPFPRINTF(PF_DEBUG_MISC, ("altq: started\n")); break; } case DIOCSTOPALTQ: { struct pf_altq *altq; /* disable all altq interfaces on active list */ TAILQ_FOREACH(altq, pf_altqs_active, entries) { if (altq->qname[0] == 0) { error = pf_disable_altq(altq); if (error != 0) break; } } if (error == 0) pf_altq_running = 0; DPFPRINTF(PF_DEBUG_MISC, ("altq: stopped\n")); break; } case DIOCADDALTQ: { struct pfioc_altq *pa = (struct pfioc_altq *)addr; struct pf_altq *altq, *a; if (pa->ticket != ticket_altqs_inactive) { error = EBUSY; break; } altq = kmalloc(sizeof(struct pf_altq), M_PFALTQPL, M_WAITOK|M_NULLOK); if (altq == NULL) { error = ENOMEM; break; } bcopy(&pa->altq, altq, sizeof(struct pf_altq)); /* * if this is for a queue, find the discipline and * copy the necessary fields */ if (altq->qname[0] != 0) { if ((altq->qid = pf_qname2qid(altq->qname)) == 0) { error = EBUSY; kfree(altq, M_PFALTQPL); break; } altq->altq_disc = NULL; TAILQ_FOREACH(a, pf_altqs_inactive, entries) { if (strncmp(a->ifname, altq->ifname, IFNAMSIZ) == 0 && a->qname[0] == 0) { altq->altq_disc = a->altq_disc; break; } } } error = altq_add(altq); if (error) { kfree(altq, M_PFALTQPL); break; } TAILQ_INSERT_TAIL(pf_altqs_inactive, altq, entries); bcopy(altq, &pa->altq, sizeof(struct pf_altq)); break; } case DIOCGETALTQS: { struct pfioc_altq *pa = (struct pfioc_altq *)addr; struct pf_altq *altq; pa->nr = 0; TAILQ_FOREACH(altq, pf_altqs_active, entries) pa->nr++; pa->ticket = ticket_altqs_active; break; } case DIOCGETALTQ: { struct pfioc_altq *pa = (struct pfioc_altq *)addr; struct pf_altq *altq; u_int32_t nr; if (pa->ticket != ticket_altqs_active) { error = EBUSY; break; } nr = 0; altq = TAILQ_FIRST(pf_altqs_active); while ((altq != NULL) && (nr < pa->nr)) { altq = TAILQ_NEXT(altq, entries); nr++; } if (altq == NULL) { error = EBUSY; break; } bcopy(altq, &pa->altq, sizeof(struct pf_altq)); break; } case DIOCCHANGEALTQ: /* CHANGEALTQ not supported yet! */ error = ENODEV; break; case DIOCGETQSTATS: { struct pfioc_qstats *pq = (struct pfioc_qstats *)addr; struct pf_altq *altq; u_int32_t nr; int nbytes; if (pq->ticket != ticket_altqs_active) { error = EBUSY; break; } nbytes = pq->nbytes; nr = 0; altq = TAILQ_FIRST(pf_altqs_active); while ((altq != NULL) && (nr < pq->nr)) { altq = TAILQ_NEXT(altq, entries); nr++; } if (altq == NULL) { error = EBUSY; break; } error = altq_getqstats(altq, pq->buf, &nbytes); if (error == 0) { pq->scheduler = altq->scheduler; pq->nbytes = nbytes; } break; } #endif /* ALTQ */ case DIOCBEGINADDRS: { struct pfioc_pooladdr *pp = (struct pfioc_pooladdr *)addr; pf_empty_pool(&pf_pabuf); pp->ticket = ++ticket_pabuf; break; } case DIOCADDADDR: { struct pfioc_pooladdr *pp = (struct pfioc_pooladdr *)addr; if (pp->ticket != ticket_pabuf) { error = EBUSY; break; } #ifndef INET if (pp->af == AF_INET) { error = EAFNOSUPPORT; break; } #endif /* INET */ #ifndef INET6 if (pp->af == AF_INET6) { error = EAFNOSUPPORT; break; } #endif /* INET6 */ if (pp->addr.addr.type != PF_ADDR_ADDRMASK && pp->addr.addr.type != PF_ADDR_DYNIFTL && pp->addr.addr.type != PF_ADDR_TABLE) { error = EINVAL; break; } pa = kmalloc(sizeof(struct pf_altq), M_PFPOOLADDRPL, M_WAITOK|M_NULLOK); if (pa == NULL) { error = ENOMEM; break; } bcopy(&pp->addr, pa, sizeof(struct pf_pooladdr)); if (pa->ifname[0]) { pa->kif = pfi_kif_get(pa->ifname); if (pa->kif == NULL) { kfree(ap, M_PFPOOLADDRPL); error = EINVAL; break; } pfi_kif_ref(pa->kif, PFI_KIF_REF_RULE); } if (pfi_dynaddr_setup(&pa->addr, pp->af)) { pfi_dynaddr_remove(&pa->addr); pfi_kif_unref(pa->kif, PFI_KIF_REF_RULE); kfree(pa, M_PFPOOLADDRPL); error = EINVAL; break; } TAILQ_INSERT_TAIL(&pf_pabuf, pa, entries); break; } case DIOCGETADDRS: { struct pfioc_pooladdr *pp = (struct pfioc_pooladdr *)addr; pp->nr = 0; pool = pf_get_pool(pp->anchor, pp->ticket, pp->r_action, pp->r_num, 0, 1, 0); if (pool == NULL) { error = EBUSY; break; } TAILQ_FOREACH(pa, &pool->list, entries) pp->nr++; break; } case DIOCGETADDR: { struct pfioc_pooladdr *pp = (struct pfioc_pooladdr *)addr; u_int32_t nr = 0; pool = pf_get_pool(pp->anchor, pp->ticket, pp->r_action, pp->r_num, 0, 1, 1); if (pool == NULL) { error = EBUSY; break; } pa = TAILQ_FIRST(&pool->list); while ((pa != NULL) && (nr < pp->nr)) { pa = TAILQ_NEXT(pa, entries); nr++; } if (pa == NULL) { error = EBUSY; break; } bcopy(pa, &pp->addr, sizeof(struct pf_pooladdr)); pf_addr_copyout(&pp->addr.addr); break; } case DIOCCHANGEADDR: { struct pfioc_pooladdr *pca = (struct pfioc_pooladdr *)addr; struct pf_pooladdr *oldpa = NULL, *newpa = NULL; struct pf_ruleset *ruleset; if (pca->action < PF_CHANGE_ADD_HEAD || pca->action > PF_CHANGE_REMOVE) { error = EINVAL; break; } if (pca->addr.addr.type != PF_ADDR_ADDRMASK && pca->addr.addr.type != PF_ADDR_DYNIFTL && pca->addr.addr.type != PF_ADDR_TABLE) { error = EINVAL; break; } ruleset = pf_find_ruleset(pca->anchor); if (ruleset == NULL) { error = EBUSY; break; } pool = pf_get_pool(pca->anchor, pca->ticket, pca->r_action, pca->r_num, pca->r_last, 1, 1); if (pool == NULL) { error = EBUSY; break; } if (pca->action != PF_CHANGE_REMOVE) { newpa = kmalloc(sizeof(struct pf_pooladdr), M_PFPOOLADDRPL, M_WAITOK|M_NULLOK); if (newpa == NULL) { error = ENOMEM; break; } bcopy(&pca->addr, newpa, sizeof(struct pf_pooladdr)); #ifndef INET if (pca->af == AF_INET) { kfree(newpa, M_PFPOOLADDRPL); error = EAFNOSUPPORT; break; } #endif /* INET */ #ifndef INET6 if (pca->af == AF_INET6) { kfree(newpa, M_PFPOOLADDRPL); error = EAFNOSUPPORT; break; } #endif /* INET6 */ if (newpa->ifname[0]) { newpa->kif = pfi_kif_get(newpa->ifname); if (newpa->kif == NULL) { kfree(newpa, M_PFPOOLADDRPL); error = EINVAL; break; } pfi_kif_ref(newpa->kif, PFI_KIF_REF_RULE); } else newpa->kif = NULL; if (pfi_dynaddr_setup(&newpa->addr, pca->af) || pf_tbladdr_setup(ruleset, &newpa->addr)) { pfi_dynaddr_remove(&newpa->addr); pfi_kif_unref(newpa->kif, PFI_KIF_REF_RULE); kfree(newpa, M_PFPOOLADDRPL); error = EINVAL; break; } } if (pca->action == PF_CHANGE_ADD_HEAD) oldpa = TAILQ_FIRST(&pool->list); else if (pca->action == PF_CHANGE_ADD_TAIL) oldpa = TAILQ_LAST(&pool->list, pf_palist); else { int i = 0; oldpa = TAILQ_FIRST(&pool->list); while ((oldpa != NULL) && (i < pca->nr)) { oldpa = TAILQ_NEXT(oldpa, entries); i++; } if (oldpa == NULL) { error = EINVAL; break; } } if (pca->action == PF_CHANGE_REMOVE) { TAILQ_REMOVE(&pool->list, oldpa, entries); pfi_dynaddr_remove(&oldpa->addr); pf_tbladdr_remove(&oldpa->addr); pfi_kif_unref(oldpa->kif, PFI_KIF_REF_RULE); kfree(oldpa, M_PFPOOLADDRPL); } else { if (oldpa == NULL) TAILQ_INSERT_TAIL(&pool->list, newpa, entries); else if (pca->action == PF_CHANGE_ADD_HEAD || pca->action == PF_CHANGE_ADD_BEFORE) TAILQ_INSERT_BEFORE(oldpa, newpa, entries); else TAILQ_INSERT_AFTER(&pool->list, oldpa, newpa, entries); } pool->cur = TAILQ_FIRST(&pool->list); PF_ACPY(&pool->counter, &pool->cur->addr.v.a.addr, pca->af); break; } case DIOCGETRULESETS: { struct pfioc_ruleset *pr = (struct pfioc_ruleset *)addr; struct pf_ruleset *ruleset; struct pf_anchor *anchor; pr->path[sizeof(pr->path) - 1] = 0; if ((ruleset = pf_find_ruleset(pr->path)) == NULL) { error = EINVAL; break; } pr->nr = 0; if (ruleset->anchor == NULL) { /* XXX kludge for pf_main_ruleset */ RB_FOREACH(anchor, pf_anchor_global, &pf_anchors) if (anchor->parent == NULL) pr->nr++; } else { RB_FOREACH(anchor, pf_anchor_node, &ruleset->anchor->children) pr->nr++; } break; } case DIOCGETRULESET: { struct pfioc_ruleset *pr = (struct pfioc_ruleset *)addr; struct pf_ruleset *ruleset; struct pf_anchor *anchor; u_int32_t nr = 0; pr->path[sizeof(pr->path) - 1] = 0; if ((ruleset = pf_find_ruleset(pr->path)) == NULL) { error = EINVAL; break; } pr->name[0] = 0; if (ruleset->anchor == NULL) { /* XXX kludge for pf_main_ruleset */ RB_FOREACH(anchor, pf_anchor_global, &pf_anchors) if (anchor->parent == NULL && nr++ == pr->nr) { strlcpy(pr->name, anchor->name, sizeof(pr->name)); break; } } else { RB_FOREACH(anchor, pf_anchor_node, &ruleset->anchor->children) if (nr++ == pr->nr) { strlcpy(pr->name, anchor->name, sizeof(pr->name)); break; } } if (!pr->name[0]) error = EBUSY; break; } case DIOCRCLRTABLES: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != 0) { error = ENODEV; break; } error = pfr_clr_tables(&io->pfrio_table, &io->pfrio_ndel, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRADDTABLES: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_table)) { error = ENODEV; break; } error = pfr_add_tables(io->pfrio_buffer, io->pfrio_size, &io->pfrio_nadd, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRDELTABLES: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_table)) { error = ENODEV; break; } error = pfr_del_tables(io->pfrio_buffer, io->pfrio_size, &io->pfrio_ndel, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRGETTABLES: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_table)) { error = ENODEV; break; } error = pfr_get_tables(&io->pfrio_table, io->pfrio_buffer, &io->pfrio_size, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRGETTSTATS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_tstats)) { error = ENODEV; break; } error = pfr_get_tstats(&io->pfrio_table, io->pfrio_buffer, &io->pfrio_size, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRCLRTSTATS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_table)) { error = ENODEV; break; } error = pfr_clr_tstats(io->pfrio_buffer, io->pfrio_size, &io->pfrio_nzero, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRSETTFLAGS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_table)) { error = ENODEV; break; } error = pfr_set_tflags(io->pfrio_buffer, io->pfrio_size, io->pfrio_setflag, io->pfrio_clrflag, &io->pfrio_nchange, &io->pfrio_ndel, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRCLRADDRS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != 0) { error = ENODEV; break; } error = pfr_clr_addrs(&io->pfrio_table, &io->pfrio_ndel, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRADDADDRS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_addr)) { error = ENODEV; break; } error = pfr_add_addrs(&io->pfrio_table, io->pfrio_buffer, io->pfrio_size, &io->pfrio_nadd, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRDELADDRS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_addr)) { error = ENODEV; break; } error = pfr_del_addrs(&io->pfrio_table, io->pfrio_buffer, io->pfrio_size, &io->pfrio_ndel, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRSETADDRS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_addr)) { error = ENODEV; break; } error = pfr_set_addrs(&io->pfrio_table, io->pfrio_buffer, io->pfrio_size, &io->pfrio_size2, &io->pfrio_nadd, &io->pfrio_ndel, &io->pfrio_nchange, io->pfrio_flags | PFR_FLAG_USERIOCTL, 0); break; } case DIOCRGETADDRS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_addr)) { error = ENODEV; break; } error = pfr_get_addrs(&io->pfrio_table, io->pfrio_buffer, &io->pfrio_size, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRGETASTATS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_astats)) { error = ENODEV; break; } error = pfr_get_astats(&io->pfrio_table, io->pfrio_buffer, &io->pfrio_size, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRCLRASTATS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_addr)) { error = ENODEV; break; } error = pfr_clr_astats(&io->pfrio_table, io->pfrio_buffer, io->pfrio_size, &io->pfrio_nzero, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRTSTADDRS: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_addr)) { error = ENODEV; break; } error = pfr_tst_addrs(&io->pfrio_table, io->pfrio_buffer, io->pfrio_size, &io->pfrio_nmatch, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCRINADEFINE: { struct pfioc_table *io = (struct pfioc_table *)addr; if (io->pfrio_esize != sizeof(struct pfr_addr)) { error = ENODEV; break; } error = pfr_ina_define(&io->pfrio_table, io->pfrio_buffer, io->pfrio_size, &io->pfrio_nadd, &io->pfrio_naddr, io->pfrio_ticket, io->pfrio_flags | PFR_FLAG_USERIOCTL); break; } case DIOCOSFPADD: { struct pf_osfp_ioctl *io = (struct pf_osfp_ioctl *)addr; error = pf_osfp_add(io); break; } case DIOCOSFPGET: { struct pf_osfp_ioctl *io = (struct pf_osfp_ioctl *)addr; error = pf_osfp_get(io); break; } case DIOCXBEGIN: { struct pfioc_trans *io = (struct pfioc_trans *)addr; struct pfioc_trans_e *ioe; struct pfr_table *table; int i; if (io->esize != sizeof(*ioe)) { error = ENODEV; goto fail; } ioe = kmalloc(sizeof(*ioe), M_TEMP, M_WAITOK); table = kmalloc(sizeof(*table), M_TEMP, M_WAITOK); for (i = 0; i < io->size; i++) { if (copyin(io->array+i, ioe, sizeof(*ioe))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EFAULT; goto fail; } switch (ioe->rs_num) { #ifdef ALTQ case PF_RULESET_ALTQ: if (ioe->anchor[0]) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EINVAL; goto fail; } if ((error = pf_begin_altq(&ioe->ticket))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); goto fail; } break; #endif /* ALTQ */ case PF_RULESET_TABLE: bzero(table, sizeof(*table)); strlcpy(table->pfrt_anchor, ioe->anchor, sizeof(table->pfrt_anchor)); if ((error = pfr_ina_begin(table, &ioe->ticket, NULL, 0))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); goto fail; } break; default: if ((error = pf_begin_rules(&ioe->ticket, ioe->rs_num, ioe->anchor))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); goto fail; } break; } if (copyout(ioe, io->array+i, sizeof(io->array[i]))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EFAULT; goto fail; } } kfree(table, M_TEMP); kfree(ioe, M_TEMP); break; } case DIOCXROLLBACK: { struct pfioc_trans *io = (struct pfioc_trans *)addr; struct pfioc_trans_e *ioe; struct pfr_table *table; int i; if (io->esize != sizeof(*ioe)) { error = ENODEV; goto fail; } ioe = kmalloc(sizeof(*ioe), M_TEMP, M_WAITOK); table = kmalloc(sizeof(*table), M_TEMP, M_WAITOK); for (i = 0; i < io->size; i++) { if (copyin(io->array+i, ioe, sizeof(*ioe))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EFAULT; goto fail; } switch (ioe->rs_num) { #ifdef ALTQ case PF_RULESET_ALTQ: if (ioe->anchor[0]) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EINVAL; goto fail; } if ((error = pf_rollback_altq(ioe->ticket))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); goto fail; /* really bad */ } break; #endif /* ALTQ */ case PF_RULESET_TABLE: bzero(table, sizeof(*table)); strlcpy(table->pfrt_anchor, ioe->anchor, sizeof(table->pfrt_anchor)); if ((error = pfr_ina_rollback(table, ioe->ticket, NULL, 0))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); goto fail; /* really bad */ } break; default: if ((error = pf_rollback_rules(ioe->ticket, ioe->rs_num, ioe->anchor))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); goto fail; /* really bad */ } break; } } kfree(table, M_TEMP); kfree(ioe, M_TEMP); break; } case DIOCXCOMMIT: { struct pfioc_trans *io = (struct pfioc_trans *)addr; struct pfioc_trans_e *ioe; struct pfr_table *table; struct pf_ruleset *rs; int i; if (io->esize != sizeof(*ioe)) { error = ENODEV; goto fail; } ioe = kmalloc(sizeof(*ioe), M_TEMP, M_WAITOK); table = kmalloc(sizeof(*table), M_TEMP, M_WAITOK); /* first makes sure everything will succeed */ for (i = 0; i < io->size; i++) { if (copyin(io->array+i, ioe, sizeof(*ioe))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EFAULT; goto fail; } switch (ioe->rs_num) { #ifdef ALTQ case PF_RULESET_ALTQ: if (ioe->anchor[0]) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EINVAL; goto fail; } if (!altqs_inactive_open || ioe->ticket != ticket_altqs_inactive) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EBUSY; goto fail; } break; #endif /* ALTQ */ case PF_RULESET_TABLE: rs = pf_find_ruleset(ioe->anchor); if (rs == NULL || !rs->topen || ioe->ticket != rs->tticket) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EBUSY; goto fail; } break; default: if (ioe->rs_num < 0 || ioe->rs_num >= PF_RULESET_MAX) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EINVAL; goto fail; } rs = pf_find_ruleset(ioe->anchor); if (rs == NULL || !rs->rules[ioe->rs_num].inactive.open || rs->rules[ioe->rs_num].inactive.ticket != ioe->ticket) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EBUSY; goto fail; } break; } } /* now do the commit - no errors should happen here */ for (i = 0; i < io->size; i++) { if (copyin(io->array+i, ioe, sizeof(*ioe))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); error = EFAULT; goto fail; } switch (ioe->rs_num) { #ifdef ALTQ case PF_RULESET_ALTQ: if ((error = pf_commit_altq(ioe->ticket))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); goto fail; /* really bad */ } break; #endif /* ALTQ */ case PF_RULESET_TABLE: bzero(table, sizeof(*table)); strlcpy(table->pfrt_anchor, ioe->anchor, sizeof(table->pfrt_anchor)); if ((error = pfr_ina_commit(table, ioe->ticket, NULL, NULL, 0))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); goto fail; /* really bad */ } break; default: if ((error = pf_commit_rules(ioe->ticket, ioe->rs_num, ioe->anchor))) { kfree(table, M_TEMP); kfree(ioe, M_TEMP); goto fail; /* really bad */ } break; } } kfree(table, M_TEMP); kfree(ioe, M_TEMP); break; } case DIOCGETSRCNODES: { struct pfioc_src_nodes *psn = (struct pfioc_src_nodes *)addr; struct pf_src_node *n, *p, *pstore; u_int32_t nr = 0; int space = psn->psn_len; int nn; if (space == 0) { for (nn = 0; nn < ncpus; ++nn) { RB_FOREACH(n, pf_src_tree, &tree_src_tracking[nn]) { nr++; } } psn->psn_len = sizeof(struct pf_src_node) * nr; break; } pstore = kmalloc(sizeof(*pstore), M_TEMP, M_WAITOK); p = psn->psn_src_nodes; /* * WARNING: We are not switching cpus so we cannot call * nominal pf.c support routines for cpu-specific * data. */ for (nn = 0; nn < ncpus; ++nn) { RB_FOREACH(n, pf_src_tree, &tree_src_tracking[nn]) { int secs = time_second, diff; if ((nr + 1) * sizeof(*p) > (unsigned)psn->psn_len) { break; } bcopy(n, pstore, sizeof(*pstore)); if (n->rule.ptr != NULL) pstore->rule.nr = n->rule.ptr->nr; pstore->creation = secs - pstore->creation; if (pstore->expire > secs) pstore->expire -= secs; else pstore->expire = 0; /* adjust the connection rate estimate */ diff = secs - n->conn_rate.last; if (diff >= n->conn_rate.seconds) pstore->conn_rate.count = 0; else pstore->conn_rate.count -= n->conn_rate.count * diff / n->conn_rate.seconds; error = copyout(pstore, p, sizeof(*p)); if (error) { kfree(pstore, M_TEMP); goto fail; } p++; nr++; } } psn->psn_len = sizeof(struct pf_src_node) * nr; kfree(pstore, M_TEMP); break; } case DIOCCLRSRCNODES: { struct pf_src_node *n; struct pf_state *state; globaldata_t save_gd = mycpu; int nn; /* * WARNING: We are not switching cpus so we cannot call * nominal pf.c support routines for cpu-specific * data. */ for (nn = 0; nn < ncpus; ++nn) { RB_FOREACH(state, pf_state_tree_id, &tree_id[nn]) { state->src_node = NULL; state->nat_src_node = NULL; } RB_FOREACH(n, pf_src_tree, &tree_src_tracking[nn]) { n->expire = 1; n->states = 0; } } /* * WARNING: Must move to the target cpu for nominal calls * into pf.c */ for (nn = 0; nn < ncpus; ++nn) { lwkt_setcpu_self(globaldata_find(nn)); pf_purge_expired_src_nodes(1); } lwkt_setcpu_self(save_gd); pf_status.src_nodes = 0; break; } case DIOCKILLSRCNODES: { struct pf_src_node *sn; struct pf_state *s; struct pfioc_src_node_kill *psnk = (struct pfioc_src_node_kill *)addr; u_int killed = 0; globaldata_t save_gd = mycpu; int nn; /* * WARNING: We are not switching cpus so we cannot call * nominal pf.c support routines for cpu-specific * data. */ for (nn = 0; nn < ncpus; ++nn) { RB_FOREACH(sn, pf_src_tree, &tree_src_tracking[nn]) { if (PF_MATCHA(psnk->psnk_src.neg, &psnk->psnk_src.addr.v.a.addr, &psnk->psnk_src.addr.v.a.mask, &sn->addr, sn->af) && PF_MATCHA(psnk->psnk_dst.neg, &psnk->psnk_dst.addr.v.a.addr, &psnk->psnk_dst.addr.v.a.mask, &sn->raddr, sn->af)) { /* Handle state to src_node linkage */ if (sn->states != 0) { RB_FOREACH(s, pf_state_tree_id, &tree_id[nn]) { if (s->src_node == sn) s->src_node = NULL; if (s->nat_src_node == sn) s->nat_src_node = NULL; } sn->states = 0; } sn->expire = 1; killed++; } } } if (killed > 0) { for (nn = 0; nn < ncpus; ++nn) { lwkt_setcpu_self(globaldata_find(nn)); pf_purge_expired_src_nodes(1); } lwkt_setcpu_self(save_gd); } psnk->psnk_killed = killed; break; } case DIOCSETHOSTID: { u_int32_t *hostid = (u_int32_t *)addr; if (*hostid == 0) pf_status.hostid = karc4random(); else pf_status.hostid = *hostid; break; } case DIOCOSFPFLUSH: crit_enter(); pf_osfp_flush(); crit_exit(); break; case DIOCIGETIFACES: { struct pfioc_iface *io = (struct pfioc_iface *)addr; if (io->pfiio_esize != sizeof(struct pfi_kif)) { error = ENODEV; break; } error = pfi_get_ifaces(io->pfiio_name, io->pfiio_buffer, &io->pfiio_size); break; } case DIOCSETIFFLAG: { struct pfioc_iface *io = (struct pfioc_iface *)addr; error = pfi_set_flags(io->pfiio_name, io->pfiio_flags); break; } case DIOCCLRIFFLAG: { struct pfioc_iface *io = (struct pfioc_iface *)addr; error = pfi_clear_flags(io->pfiio_name, io->pfiio_flags); break; } default: error = ENODEV; break; } fail: lwkt_reltoken(&pf_token); return (error); } /* * XXX - Check for version missmatch!!! */ static void pf_clear_states(void) { struct pf_state *s, *nexts; globaldata_t save_gd = mycpu; int nn; for (nn = 0; nn < ncpus; ++nn) { lwkt_setcpu_self(globaldata_find(nn)); for (s = RB_MIN(pf_state_tree_id, &tree_id[nn]); s; s = nexts) { nexts = RB_NEXT(pf_state_tree_id, &tree_id[nn], s); /* don't send out individual delete messages */ s->sync_flags = PFSTATE_NOSYNC; pf_unlink_state(s); } } lwkt_setcpu_self(save_gd); #if 0 /* PFSYNC */ /* * XXX This is called on module unload, we do not want to sync that over? */ */ pfsync_clear_states(pf_status.hostid, psk->psk_ifname); #endif } static int pf_clear_tables(void) { struct pfioc_table io; int error; bzero(&io, sizeof(io)); error = pfr_clr_tables(&io.pfrio_table, &io.pfrio_ndel, io.pfrio_flags); return (error); } static void pf_clear_srcnodes(void) { struct pf_src_node *n; struct pf_state *state; globaldata_t save_gd = mycpu; int nn; for (nn = 0; nn < ncpus; ++nn) { lwkt_setcpu_self(globaldata_find(nn)); RB_FOREACH(state, pf_state_tree_id, &tree_id[nn]) { state->src_node = NULL; state->nat_src_node = NULL; } RB_FOREACH(n, pf_src_tree, &tree_src_tracking[nn]) { n->expire = 1; n->states = 0; } pf_purge_expired_src_nodes(0); } lwkt_setcpu_self(save_gd); pf_status.src_nodes = 0; } /* * XXX - Check for version missmatch!!! */ /* * Duplicate pfctl -Fa operation to get rid of as much as we can. */ static int shutdown_pf(void) { int error = 0; u_int32_t t[5]; char nn = '\0'; pf_status.running = 0; error = dehook_pf(); if (error) { pf_status.running = 1; DPFPRINTF(PF_DEBUG_MISC, ("pf: pfil unregistration failed\n")); return(error); } do { if ((error = pf_begin_rules(&t[0], PF_RULESET_SCRUB, &nn)) != 0) { DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: SCRUB\n")); break; } if ((error = pf_begin_rules(&t[1], PF_RULESET_FILTER, &nn)) != 0) { DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: FILTER\n")); break; /* XXX: rollback? */ } if ((error = pf_begin_rules(&t[2], PF_RULESET_NAT, &nn)) != 0) { DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: NAT\n")); break; /* XXX: rollback? */ } if ((error = pf_begin_rules(&t[3], PF_RULESET_BINAT, &nn)) != 0) { DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: BINAT\n")); break; /* XXX: rollback? */ } if ((error = pf_begin_rules(&t[4], PF_RULESET_RDR, &nn)) != 0) { DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: RDR\n")); break; /* XXX: rollback? */ } /* XXX: these should always succeed here */ pf_commit_rules(t[0], PF_RULESET_SCRUB, &nn); pf_commit_rules(t[1], PF_RULESET_FILTER, &nn); pf_commit_rules(t[2], PF_RULESET_NAT, &nn); pf_commit_rules(t[3], PF_RULESET_BINAT, &nn); pf_commit_rules(t[4], PF_RULESET_RDR, &nn); if ((error = pf_clear_tables()) != 0) break; #ifdef ALTQ if ((error = pf_begin_altq(&t[0])) != 0) { DPFPRINTF(PF_DEBUG_MISC, ("shutdown_pf: ALTQ\n")); break; } pf_commit_altq(t[0]); #endif pf_clear_states(); pf_clear_srcnodes(); /* status does not use malloced mem so no need to cleanup */ /* fingerprints and interfaces have their own cleanup code */ } while (0); return (error); } static int pf_check_in(void *arg, struct mbuf **m, struct ifnet *ifp, int dir) { /* * NOTE: ip_len and ip_off are left in network byte order */ int chk; lwkt_gettoken_shared(&pf_token); chk = pf_test(PF_IN, ifp, m, NULL, NULL); if (chk && *m) { m_freem(*m); *m = NULL; } lwkt_reltoken(&pf_token); return chk; } static int pf_check_out(void *arg, struct mbuf **m, struct ifnet *ifp, int dir) { /* * NOTE: ip_len and ip_off are left in network byte order */ int chk; lwkt_gettoken_shared(&pf_token); /* We need a proper CSUM befor we start (s. OpenBSD ip_output) */ if ((*m)->m_pkthdr.csum_flags & CSUM_DELAY_DATA) { in_delayed_cksum(*m); (*m)->m_pkthdr.csum_flags &= ~CSUM_DELAY_DATA; } chk = pf_test(PF_OUT, ifp, m, NULL, NULL); if (chk && *m) { m_freem(*m); *m = NULL; } lwkt_reltoken(&pf_token); return chk; } #ifdef INET6 static int pf_check6_in(void *arg, struct mbuf **m, struct ifnet *ifp, int dir) { int chk; lwkt_gettoken_shared(&pf_token); chk = pf_test6(PF_IN, ifp, m, NULL, NULL); if (chk && *m) { m_freem(*m); *m = NULL; } lwkt_reltoken(&pf_token); return chk; } static int pf_check6_out(void *arg, struct mbuf **m, struct ifnet *ifp, int dir) { int chk; lwkt_gettoken_shared(&pf_token); /* We need a proper CSUM befor we start (s. OpenBSD ip_output) */ if ((*m)->m_pkthdr.csum_flags & CSUM_DELAY_DATA) { in_delayed_cksum(*m); (*m)->m_pkthdr.csum_flags &= ~CSUM_DELAY_DATA; } chk = pf_test6(PF_OUT, ifp, m, NULL, NULL); if (chk && *m) { m_freem(*m); *m = NULL; } lwkt_reltoken(&pf_token); return chk; } #endif /* INET6 */ static int hook_pf(void) { struct pfil_head *pfh_inet; #ifdef INET6 struct pfil_head *pfh_inet6; #endif lwkt_gettoken(&pf_token); if (pf_pfil_hooked) { lwkt_reltoken(&pf_token); return (0); } pfh_inet = pfil_head_get(PFIL_TYPE_AF, AF_INET); if (pfh_inet == NULL) { lwkt_reltoken(&pf_token); return (ENODEV); } pfil_add_hook(pf_check_in, NULL, PFIL_IN, pfh_inet); pfil_add_hook(pf_check_out, NULL, PFIL_OUT, pfh_inet); #ifdef INET6 pfh_inet6 = pfil_head_get(PFIL_TYPE_AF, AF_INET6); if (pfh_inet6 == NULL) { pfil_remove_hook(pf_check_in, NULL, PFIL_IN, pfh_inet); pfil_remove_hook(pf_check_out, NULL, PFIL_OUT, pfh_inet); lwkt_reltoken(&pf_token); return (ENODEV); } pfil_add_hook(pf_check6_in, NULL, PFIL_IN, pfh_inet6); pfil_add_hook(pf_check6_out, NULL, PFIL_OUT, pfh_inet6); #endif pf_pfil_hooked = 1; lwkt_reltoken(&pf_token); return (0); } static int dehook_pf(void) { struct pfil_head *pfh_inet; #ifdef INET6 struct pfil_head *pfh_inet6; #endif lwkt_gettoken(&pf_token); if (pf_pfil_hooked == 0) { lwkt_reltoken(&pf_token); return (0); } pfh_inet = pfil_head_get(PFIL_TYPE_AF, AF_INET); if (pfh_inet == NULL) { lwkt_reltoken(&pf_token); return (ENODEV); } pfil_remove_hook(pf_check_in, NULL, PFIL_IN, pfh_inet); pfil_remove_hook(pf_check_out, NULL, PFIL_OUT, pfh_inet); #ifdef INET6 pfh_inet6 = pfil_head_get(PFIL_TYPE_AF, AF_INET6); if (pfh_inet6 == NULL) { lwkt_reltoken(&pf_token); return (ENODEV); } pfil_remove_hook(pf_check6_in, NULL, PFIL_IN, pfh_inet6); pfil_remove_hook(pf_check6_out, NULL, PFIL_OUT, pfh_inet6); #endif pf_pfil_hooked = 0; lwkt_reltoken(&pf_token); return (0); } static int pf_load(void) { lwkt_gettoken(&pf_token); pf_dev = make_dev(&pf_ops, 0, UID_ROOT, GID_WHEEL, 0600, PF_NAME); pfattach(); lockinit(&pf_consistency_lock, "pfconslck", 0, LK_CANRECURSE); lockinit(&pf_global_statetbl_lock, "pfglstlk", 0, 0); lwkt_reltoken(&pf_token); return (0); } static int pf_unload(void) { int error; pf_status.running = 0; lwkt_gettoken(&pf_token); error = dehook_pf(); if (error) { /* * Should not happen! * XXX Due to error code ESRCH, kldunload will show * a message like 'No such process'. */ kprintf("pfil unregistration fail\n"); lwkt_reltoken(&pf_token); return error; } kprintf("PF shutdown\n"); pf_end_threads = 1; shutdown_pf(); while (pf_end_threads < 2) { wakeup_one(pf_purge_thread); tsleep(pf_purge_thread, 0, "pftmo", hz / 10); } pfi_cleanup(); pf_osfp_flush(); dev_ops_remove_all(&pf_ops); lockuninit(&pf_consistency_lock); lwkt_reltoken(&pf_token); pf_normalize_unload(); if (pf_maskhead != NULL) { rn_flush(pf_maskhead, rn_freemask); rn_freehead(pf_maskhead); pf_maskhead = NULL; } kmalloc_destroy(&pf_state_pl); kmalloc_destroy(&pf_frent_pl); kmalloc_destroy(&pf_cent_pl); kfree(tree_src_tracking, M_PF); kfree(tree_id, M_PF); kfree(state_list, M_PF); kfree(pf_counters, M_PF); kfree(pf_statetbl, M_PF); kfree(purge_cur, M_PF); return 0; } static int pf_modevent(module_t mod, int type, void *data __unused) { int error = 0; lwkt_gettoken(&pf_token); switch(type) { case MOD_LOAD: error = pf_load(); break; case MOD_UNLOAD: error = pf_unload(); break; default: error = EINVAL; break; } lwkt_reltoken(&pf_token); return error; } static moduledata_t pf_mod = { "pf", pf_modevent, 0 }; DECLARE_MODULE(pf, pf_mod, SI_SUB_PSEUDO, SI_ORDER_FIRST); MODULE_VERSION(pf, PF_MODVER);