1 /* $OpenBSD: pf_if.c,v 1.54 2008/06/14 16:55:28 mk Exp $ */
4 * Copyright 2005 Henning Brauer <henning@openbsd.org>
5 * Copyright 2005 Ryan McBride <mcbride@openbsd.org>
6 * Copyright (c) 2001 Daniel Hartmeier
7 * Copyright (c) 2003 Cedric Berger
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
14 * - Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * - Redistributions in binary form must reproduce the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer in the documentation and/or other materials provided
19 * with the distribution.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
35 #if defined(__FreeBSD__)
37 #include "opt_inet6.h"
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
43 #include <sys/param.h>
44 #include <sys/systm.h>
46 #include <sys/malloc.h>
49 #include <sys/filio.h>
50 #include <sys/socket.h>
51 #include <sys/socketvar.h>
52 #include <sys/kernel.h>
54 #include <sys/device.h>
62 #include <net/if_types.h>
67 #include <netinet/in.h>
68 #include <netinet/in_var.h>
69 #include <netinet/in_systm.h>
70 #include <netinet/ip.h>
71 #include <netinet/ip_var.h>
73 #include <net/pfvar.h>
76 #include <netinet/ip6.h>
80 VNET_DEFINE(struct pfi_kif *, pfi_all);
81 VNET_DEFINE(uma_zone_t, pfi_addr_pl);
82 VNET_DEFINE(struct pfi_ifhead, pfi_ifs);
83 #define V_pfi_ifs VNET(pfi_ifs)
84 VNET_DEFINE(long, pfi_update);
85 #define V_pfi_update VNET(pfi_update)
86 VNET_DEFINE(struct pfr_addr *, pfi_buffer);
87 #define V_pfi_buffer VNET(pfi_buffer)
88 VNET_DEFINE(int, pfi_buffer_cnt);
89 #define V_pfi_buffer_cnt VNET(pfi_buffer_cnt)
90 VNET_DEFINE(int, pfi_buffer_max);
91 #define V_pfi_buffer_max VNET(pfi_buffer_max)
93 struct pfi_kif *pfi_all = NULL;
94 struct pool pfi_addr_pl;
95 struct pfi_ifhead pfi_ifs;
97 struct pfr_addr *pfi_buffer;
102 eventhandler_tag pfi_attach_cookie;
103 eventhandler_tag pfi_detach_cookie;
104 eventhandler_tag pfi_attach_group_cookie;
105 eventhandler_tag pfi_change_group_cookie;
106 eventhandler_tag pfi_detach_group_cookie;
107 eventhandler_tag pfi_ifaddr_event_cookie;
110 void pfi_kif_update(struct pfi_kif *);
111 void pfi_dynaddr_update(struct pfi_dynaddr *dyn);
112 void pfi_table_update(struct pfr_ktable *, struct pfi_kif *,
114 void pfi_kifaddr_update(void *);
115 void pfi_instance_add(struct ifnet *, int, int);
116 void pfi_address_add(struct sockaddr *, int, int);
117 int pfi_if_compare(struct pfi_kif *, struct pfi_kif *);
118 int pfi_skip_if(const char *, struct pfi_kif *);
119 int pfi_unmask(void *);
121 void pfi_attach_ifnet_event(void * __unused, struct ifnet *);
122 void pfi_detach_ifnet_event(void * __unused, struct ifnet *);
123 void pfi_attach_group_event(void *, struct ifg_group *);
124 void pfi_change_group_event(void *, char *);
125 void pfi_detach_group_event(void *, struct ifg_group *);
126 void pfi_ifaddr_event(void * __unused, struct ifnet *);
129 RB_PROTOTYPE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare);
130 RB_GENERATE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare);
132 #define PFI_BUFFER_MAX 0x10000
133 #define PFI_MTYPE M_IFADDR
139 if (V_pfi_all != NULL) /* already initialized */
141 if (pfi_all != NULL) /* already initialized */
146 pool_init(&V_pfi_addr_pl, sizeof(struct pfi_dynaddr), 0, 0, 0,
147 "pfiaddrpl", &pool_allocator_nointr);
150 V_pfi_buffer_max = 64;
151 V_pfi_buffer = malloc(V_pfi_buffer_max * sizeof(*V_pfi_buffer),
152 PFI_MTYPE, M_WAITOK);
154 if ((V_pfi_all = pfi_kif_get(IFG_ALL)) == NULL)
157 pfi_buffer = malloc(pfi_buffer_max * sizeof(*pfi_buffer),
158 PFI_MTYPE, M_WAITOK);
160 if ((pfi_all = pfi_kif_get(IFG_ALL)) == NULL)
162 panic("pfi_kif_get for pfi_all failed");
164 struct ifg_group *ifg;
168 TAILQ_FOREACH(ifg, &V_ifg_head, ifg_next)
169 pfi_attach_ifgroup(ifg);
170 TAILQ_FOREACH(ifp, &V_ifnet, if_link)
171 pfi_attach_ifnet(ifp);
174 pfi_attach_cookie = EVENTHANDLER_REGISTER(ifnet_arrival_event,
175 pfi_attach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
176 pfi_detach_cookie = EVENTHANDLER_REGISTER(ifnet_departure_event,
177 pfi_detach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
178 pfi_attach_group_cookie = EVENTHANDLER_REGISTER(group_attach_event,
179 pfi_attach_group_event, curvnet, EVENTHANDLER_PRI_ANY);
180 pfi_change_group_cookie = EVENTHANDLER_REGISTER(group_change_event,
181 pfi_change_group_event, curvnet, EVENTHANDLER_PRI_ANY);
182 pfi_detach_group_cookie = EVENTHANDLER_REGISTER(group_detach_event,
183 pfi_detach_group_event, curvnet, EVENTHANDLER_PRI_ANY);
184 pfi_ifaddr_event_cookie = EVENTHANDLER_REGISTER(ifaddr_event,
185 pfi_ifaddr_event, NULL, EVENTHANDLER_PRI_ANY);
196 EVENTHANDLER_DEREGISTER(ifnet_arrival_event, pfi_attach_cookie);
197 EVENTHANDLER_DEREGISTER(ifnet_departure_event, pfi_detach_cookie);
198 EVENTHANDLER_DEREGISTER(group_attach_event, pfi_attach_group_cookie);
199 EVENTHANDLER_DEREGISTER(group_change_event, pfi_change_group_cookie);
200 EVENTHANDLER_DEREGISTER(group_detach_event, pfi_detach_group_cookie);
201 EVENTHANDLER_DEREGISTER(ifaddr_event, pfi_ifaddr_event_cookie);
205 while ((p = RB_MIN(pfi_ifhead, &V_pfi_ifs))) {
206 if (p->pfik_rules || p->pfik_states) {
207 printf("pfi_cleanup: dangling refs for %s\n",
211 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, p);
215 free(V_pfi_buffer, PFI_MTYPE);
220 pfi_kif_get(const char *kif_name)
223 struct pfi_kif_cmp s;
225 bzero(&s, sizeof(s));
226 strlcpy(s.pfik_name, kif_name, sizeof(s.pfik_name));
228 if ((kif = RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&s)) != NULL)
230 if ((kif = RB_FIND(pfi_ifhead, &pfi_ifs, (struct pfi_kif *)&s)) != NULL)
236 if ((kif = malloc(sizeof(*kif), PFI_MTYPE, M_NOWAIT | M_ZERO)) == NULL)
238 if ((kif = malloc(sizeof(*kif), PFI_MTYPE, M_DONTWAIT|M_ZERO)) == NULL)
242 strlcpy(kif->pfik_name, kif_name, sizeof(kif->pfik_name));
245 * It seems that the value of time_second is in unintialzied state
246 * when pf sets interface statistics clear time in boot phase if pf
247 * was statically linked to kernel. Instead of setting the bogus
248 * time value have pfi_get_ifaces handle this case. In
249 * pfi_get_ifaces it uses boottime.tv_sec if it sees the time is 0.
251 kif->pfik_tzero = time_second > 1 ? time_second : 0;
253 kif->pfik_tzero = time_second;
255 TAILQ_INIT(&kif->pfik_dynaddrs);
258 RB_INSERT(pfi_ifhead, &V_pfi_ifs, kif);
260 RB_INSERT(pfi_ifhead, &pfi_ifs, kif);
267 pfi_kif_ref(struct pfi_kif *kif, enum pfi_kif_refs what)
270 case PFI_KIF_REF_RULE:
273 case PFI_KIF_REF_STATE:
277 panic("pfi_kif_ref with unknown type");
282 pfi_kif_unref(struct pfi_kif *kif, enum pfi_kif_refs what)
288 case PFI_KIF_REF_NONE:
290 case PFI_KIF_REF_RULE:
291 if (kif->pfik_rules <= 0) {
292 printf("pfi_kif_unref: rules refcount <= 0\n");
297 case PFI_KIF_REF_STATE:
298 if (kif->pfik_states <= 0) {
299 printf("pfi_kif_unref: state refcount <= 0\n");
305 panic("pfi_kif_unref with unknown type");
309 if (kif->pfik_ifp != NULL || kif->pfik_group != NULL || kif == V_pfi_all)
311 if (kif->pfik_ifp != NULL || kif->pfik_group != NULL || kif == pfi_all)
315 if (kif->pfik_rules || kif->pfik_states)
319 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, kif);
321 RB_REMOVE(pfi_ifhead, &pfi_ifs, kif);
323 free(kif, PFI_MTYPE);
327 pfi_kif_match(struct pfi_kif *rule_kif, struct pfi_kif *packet_kif)
331 if (rule_kif == NULL || rule_kif == packet_kif)
334 if (rule_kif->pfik_group != NULL)
335 TAILQ_FOREACH(p, &packet_kif->pfik_ifp->if_groups, ifgl_next)
336 if (p->ifgl_group == rule_kif->pfik_group)
343 pfi_attach_ifnet(struct ifnet *ifp)
355 if ((kif = pfi_kif_get(ifp->if_xname)) == NULL)
356 panic("pfi_kif_get failed");
359 ifp->if_pf_kif = (caddr_t)kif;
362 if ((kif->pfik_ah_cookie = hook_establish(ifp->if_addrhooks, 1,
363 pfi_kifaddr_update, kif)) == NULL)
364 panic("pfi_attach_ifnet: cannot allocate '%s' address hook",
374 pfi_detach_ifnet(struct ifnet *ifp)
379 if ((kif = (struct pfi_kif *)ifp->if_pf_kif) == NULL)
389 hook_disestablish(ifp->if_addrhooks, kif->pfik_ah_cookie);
393 kif->pfik_ifp = NULL;
394 ifp->if_pf_kif = NULL;
395 pfi_kif_unref(kif, PFI_KIF_REF_NONE);
400 pfi_attach_ifgroup(struct ifg_group *ifg)
412 if ((kif = pfi_kif_get(ifg->ifg_group)) == NULL)
413 panic("pfi_kif_get failed");
415 kif->pfik_group = ifg;
416 ifg->ifg_pf_kif = (caddr_t)kif;
422 pfi_detach_ifgroup(struct ifg_group *ifg)
427 if ((kif = (struct pfi_kif *)ifg->ifg_pf_kif) == NULL)
437 kif->pfik_group = NULL;
438 ifg->ifg_pf_kif = NULL;
439 pfi_kif_unref(kif, PFI_KIF_REF_NONE);
444 pfi_group_change(const char *group)
455 if ((kif = pfi_kif_get(group)) == NULL)
456 panic("pfi_kif_get failed");
464 pfi_match_addr(struct pfi_dynaddr *dyn, struct pf_addr *a, sa_family_t af)
469 switch (dyn->pfid_acnt4) {
473 return (PF_MATCHA(0, &dyn->pfid_addr4,
474 &dyn->pfid_mask4, a, AF_INET));
476 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET));
482 switch (dyn->pfid_acnt6) {
486 return (PF_MATCHA(0, &dyn->pfid_addr6,
487 &dyn->pfid_mask6, a, AF_INET6));
489 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET6));
499 pfi_dynaddr_setup(struct pf_addr_wrap *aw, sa_family_t af)
501 struct pfi_dynaddr *dyn;
502 char tblname[PF_TABLE_NAME_SIZE];
503 struct pf_ruleset *ruleset = NULL;
506 if (aw->type != PF_ADDR_DYNIFTL)
510 if ((dyn = pool_get(&V_pfi_addr_pl, PR_WAITOK | PR_ZERO))
512 if ((dyn = pool_get(&pfi_addr_pl, PR_WAITOK | PR_LIMITFAIL | PR_ZERO))
518 if (!strcmp(aw->v.ifname, "self"))
519 dyn->pfid_kif = pfi_kif_get(IFG_ALL);
521 dyn->pfid_kif = pfi_kif_get(aw->v.ifname);
522 if (dyn->pfid_kif == NULL) {
526 pfi_kif_ref(dyn->pfid_kif, PFI_KIF_REF_RULE);
528 dyn->pfid_net = pfi_unmask(&aw->v.a.mask);
529 if (af == AF_INET && dyn->pfid_net == 32)
531 strlcpy(tblname, aw->v.ifname, sizeof(tblname));
532 if (aw->iflags & PFI_AFLAG_NETWORK)
533 strlcat(tblname, ":network", sizeof(tblname));
534 if (aw->iflags & PFI_AFLAG_BROADCAST)
535 strlcat(tblname, ":broadcast", sizeof(tblname));
536 if (aw->iflags & PFI_AFLAG_PEER)
537 strlcat(tblname, ":peer", sizeof(tblname));
538 if (aw->iflags & PFI_AFLAG_NOALIAS)
539 strlcat(tblname, ":0", sizeof(tblname));
540 if (dyn->pfid_net != 128)
541 snprintf(tblname + strlen(tblname),
542 sizeof(tblname) - strlen(tblname), "/%d", dyn->pfid_net);
543 if ((ruleset = pf_find_or_create_ruleset(PF_RESERVED_ANCHOR)) == NULL) {
548 if ((dyn->pfid_kt = pfr_attach_table(ruleset, tblname, 1)) == NULL) {
553 dyn->pfid_kt->pfrkt_flags |= PFR_TFLAG_ACTIVE;
554 dyn->pfid_iflags = aw->iflags;
557 TAILQ_INSERT_TAIL(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
559 pfi_kif_update(dyn->pfid_kif);
564 if (dyn->pfid_kt != NULL)
565 pfr_detach_table(dyn->pfid_kt);
567 pf_remove_if_empty_ruleset(ruleset);
568 if (dyn->pfid_kif != NULL)
569 pfi_kif_unref(dyn->pfid_kif, PFI_KIF_REF_RULE);
571 pool_put(&V_pfi_addr_pl, dyn);
573 pool_put(&pfi_addr_pl, dyn);
580 pfi_kif_update(struct pfi_kif *kif)
582 struct ifg_list *ifgl;
583 struct pfi_dynaddr *p;
585 /* update all dynaddr */
586 TAILQ_FOREACH(p, &kif->pfik_dynaddrs, entry)
587 pfi_dynaddr_update(p);
589 /* again for all groups kif is member of */
590 if (kif->pfik_ifp != NULL)
591 TAILQ_FOREACH(ifgl, &kif->pfik_ifp->if_groups, ifgl_next)
592 pfi_kif_update((struct pfi_kif *)
593 ifgl->ifgl_group->ifg_pf_kif);
597 pfi_dynaddr_update(struct pfi_dynaddr *dyn)
600 struct pfr_ktable *kt;
602 if (dyn == NULL || dyn->pfid_kif == NULL || dyn->pfid_kt == NULL)
603 panic("pfi_dynaddr_update");
609 if (kt->pfrkt_larg != V_pfi_update) {
611 if (kt->pfrkt_larg != pfi_update) {
613 /* this table needs to be brought up-to-date */
614 pfi_table_update(kt, kif, dyn->pfid_net, dyn->pfid_iflags);
616 kt->pfrkt_larg = V_pfi_update;
618 kt->pfrkt_larg = pfi_update;
621 pfr_dynaddr_update(kt, dyn);
625 pfi_table_update(struct pfr_ktable *kt, struct pfi_kif *kif, int net, int flags)
628 struct ifg_member *ifgm;
631 V_pfi_buffer_cnt = 0;
636 if (kif->pfik_ifp != NULL)
637 pfi_instance_add(kif->pfik_ifp, net, flags);
638 else if (kif->pfik_group != NULL)
639 TAILQ_FOREACH(ifgm, &kif->pfik_group->ifg_members, ifgm_next)
640 pfi_instance_add(ifgm->ifgm_ifp, net, flags);
643 if ((e = pfr_set_addrs(&kt->pfrkt_t, V_pfi_buffer, V_pfi_buffer_cnt, &size2,
644 NULL, NULL, NULL, 0, PFR_TFLAG_ALLMASK)))
645 printf("pfi_table_update: cannot set %d new addresses "
646 "into table %s: %d\n", V_pfi_buffer_cnt, kt->pfrkt_name, e);
648 if ((e = pfr_set_addrs(&kt->pfrkt_t, pfi_buffer, pfi_buffer_cnt, &size2,
649 NULL, NULL, NULL, 0, PFR_TFLAG_ALLMASK)))
650 printf("pfi_table_update: cannot set %d new addresses "
651 "into table %s: %d\n", pfi_buffer_cnt, kt->pfrkt_name, e);
656 pfi_instance_add(struct ifnet *ifp, int net, int flags)
659 int got4 = 0, got6 = 0;
664 TAILQ_FOREACH(ia, &ifp->if_addrlist, ifa_list) {
665 if (ia->ifa_addr == NULL)
667 af = ia->ifa_addr->sa_family;
668 if (af != AF_INET && af != AF_INET6)
672 * XXX: For point-to-point interfaces, (ifname:0) and IPv4,
673 * jump over addresses without a proper route to work
674 * around a problem with ppp not fully removing the
675 * address used during IPCP.
677 if ((ifp->if_flags & IFF_POINTOPOINT) &&
678 !(ia->ifa_flags & IFA_ROUTE) &&
679 (flags & PFI_AFLAG_NOALIAS) && (af == AF_INET))
682 if ((flags & PFI_AFLAG_BROADCAST) && af == AF_INET6)
684 if ((flags & PFI_AFLAG_BROADCAST) &&
685 !(ifp->if_flags & IFF_BROADCAST))
687 if ((flags & PFI_AFLAG_PEER) &&
688 !(ifp->if_flags & IFF_POINTOPOINT))
690 if ((flags & PFI_AFLAG_NETWORK) && af == AF_INET6 &&
691 IN6_IS_ADDR_LINKLOCAL(
692 &((struct sockaddr_in6 *)ia->ifa_addr)->sin6_addr))
694 if (flags & PFI_AFLAG_NOALIAS) {
695 if (af == AF_INET && got4)
697 if (af == AF_INET6 && got6)
702 else if (af == AF_INET6)
705 if (net2 == 128 && (flags & PFI_AFLAG_NETWORK)) {
707 net2 = pfi_unmask(&((struct sockaddr_in *)
708 ia->ifa_netmask)->sin_addr);
709 else if (af == AF_INET6)
710 net2 = pfi_unmask(&((struct sockaddr_in6 *)
711 ia->ifa_netmask)->sin6_addr);
713 if (af == AF_INET && net2 > 32)
715 if (flags & PFI_AFLAG_BROADCAST)
716 pfi_address_add(ia->ifa_broadaddr, af, net2);
717 else if (flags & PFI_AFLAG_PEER)
718 pfi_address_add(ia->ifa_dstaddr, af, net2);
720 pfi_address_add(ia->ifa_addr, af, net2);
725 pfi_address_add(struct sockaddr *sa, int af, int net)
731 if (V_pfi_buffer_cnt >= V_pfi_buffer_max) {
732 int new_max = V_pfi_buffer_max * 2;
734 if (pfi_buffer_cnt >= pfi_buffer_max) {
735 int new_max = pfi_buffer_max * 2;
738 if (new_max > PFI_BUFFER_MAX) {
739 printf("pfi_address_add: address buffer full (%d/%d)\n",
741 V_pfi_buffer_cnt, PFI_BUFFER_MAX);
743 pfi_buffer_cnt, PFI_BUFFER_MAX);
747 p = malloc(new_max * sizeof(*V_pfi_buffer), PFI_MTYPE,
754 printf("pfi_address_add: no memory to grow buffer "
756 "(%d/%d)\n", V_pfi_buffer_cnt, PFI_BUFFER_MAX);
758 "(%d/%d)\n", pfi_buffer_cnt, PFI_BUFFER_MAX);
763 memcpy(V_pfi_buffer, p, V_pfi_buffer_cnt * sizeof(*V_pfi_buffer));
764 /* no need to zero buffer */
765 free(V_pfi_buffer, PFI_MTYPE);
767 V_pfi_buffer_max = new_max;
769 memcpy(pfi_buffer, p, pfi_buffer_cnt * sizeof(*pfi_buffer));
770 /* no need to zero buffer */
771 free(pfi_buffer, PFI_MTYPE);
773 pfi_buffer_max = new_max;
776 if (af == AF_INET && net > 32)
779 p = V_pfi_buffer + V_pfi_buffer_cnt++;
781 p = pfi_buffer + pfi_buffer_cnt++;
783 bzero(p, sizeof(*p));
787 p->pfra_ip4addr = ((struct sockaddr_in *)sa)->sin_addr;
788 else if (af == AF_INET6) {
789 p->pfra_ip6addr = ((struct sockaddr_in6 *)sa)->sin6_addr;
790 if (IN6_IS_SCOPE_EMBED(&p->pfra_ip6addr))
791 p->pfra_ip6addr.s6_addr16[1] = 0;
793 /* mask network address bits */
795 ((caddr_t)p)[p->pfra_net/8] &= ~(0xFF >> (p->pfra_net%8));
796 for (i = (p->pfra_net+7)/8; i < sizeof(p->pfra_u); i++)
801 pfi_dynaddr_remove(struct pf_addr_wrap *aw)
805 if (aw->type != PF_ADDR_DYNIFTL || aw->p.dyn == NULL ||
806 aw->p.dyn->pfid_kif == NULL || aw->p.dyn->pfid_kt == NULL)
810 TAILQ_REMOVE(&aw->p.dyn->pfid_kif->pfik_dynaddrs, aw->p.dyn, entry);
811 pfi_kif_unref(aw->p.dyn->pfid_kif, PFI_KIF_REF_RULE);
812 aw->p.dyn->pfid_kif = NULL;
813 pfr_detach_table(aw->p.dyn->pfid_kt);
814 aw->p.dyn->pfid_kt = NULL;
816 pool_put(&V_pfi_addr_pl, aw->p.dyn);
818 pool_put(&pfi_addr_pl, aw->p.dyn);
825 pfi_dynaddr_copyout(struct pf_addr_wrap *aw)
827 if (aw->type != PF_ADDR_DYNIFTL || aw->p.dyn == NULL ||
828 aw->p.dyn->pfid_kif == NULL)
830 aw->p.dyncnt = aw->p.dyn->pfid_acnt4 + aw->p.dyn->pfid_acnt6;
834 pfi_kifaddr_update(void *v)
837 struct pfi_kif *kif = (struct pfi_kif *)v;
850 pfi_if_compare(struct pfi_kif *p, struct pfi_kif *q)
852 return (strncmp(p->pfik_name, q->pfik_name, IFNAMSIZ));
856 pfi_update_status(const char *name, struct pf_status *pfs)
859 struct pfi_kif_cmp key;
860 struct ifg_member p_member, *ifgm;
861 TAILQ_HEAD(, ifg_member) ifg_members;
864 strlcpy(key.pfik_name, name, sizeof(key.pfik_name));
867 p = RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&key);
869 p = RB_FIND(pfi_ifhead, &pfi_ifs, (struct pfi_kif *)&key);
875 if (p->pfik_group != NULL) {
876 bcopy(&p->pfik_group->ifg_members, &ifg_members,
877 sizeof(ifg_members));
879 /* build a temporary list for p only */
880 bzero(&p_member, sizeof(p_member));
881 p_member.ifgm_ifp = p->pfik_ifp;
882 TAILQ_INIT(&ifg_members);
883 TAILQ_INSERT_TAIL(&ifg_members, &p_member, ifgm_next);
886 bzero(pfs->pcounters, sizeof(pfs->pcounters));
887 bzero(pfs->bcounters, sizeof(pfs->bcounters));
889 TAILQ_FOREACH(ifgm, &ifg_members, ifgm_next) {
890 if (ifgm->ifgm_ifp == NULL)
892 p = (struct pfi_kif *)ifgm->ifgm_ifp->if_pf_kif;
894 /* just clear statistics */
896 bzero(p->pfik_packets, sizeof(p->pfik_packets));
897 bzero(p->pfik_bytes, sizeof(p->pfik_bytes));
898 p->pfik_tzero = time_second;
901 for (i = 0; i < 2; i++)
902 for (j = 0; j < 2; j++)
903 for (k = 0; k < 2; k++) {
904 pfs->pcounters[i][j][k] +=
905 p->pfik_packets[i][j][k];
906 pfs->bcounters[i][j] +=
907 p->pfik_bytes[i][j][k];
914 pfi_get_ifaces(const char *name, struct pfi_kif *buf, int *size)
916 struct pfi_kif *p, *nextp;
924 for (p = RB_MIN(pfi_ifhead, &V_pfi_ifs); p; p = nextp) {
925 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
927 for (p = RB_MIN(pfi_ifhead, &pfi_ifs); p; p = nextp) {
928 nextp = RB_NEXT(pfi_ifhead, &pfi_ifs, p);
930 if (pfi_skip_if(name, p))
934 p->pfik_tzero = time_second;
935 pfi_kif_ref(p, PFI_KIF_REF_RULE);
937 PF_COPYOUT(p, buf++, sizeof(*buf), error);
940 if (copyout(p, buf++, sizeof(*buf))) {
942 pfi_kif_unref(p, PFI_KIF_REF_RULE);
947 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
949 nextp = RB_NEXT(pfi_ifhead, &pfi_ifs, p);
951 pfi_kif_unref(p, PFI_KIF_REF_RULE);
960 pfi_skip_if(const char *filter, struct pfi_kif *p)
964 if (filter == NULL || !*filter)
966 if (!strcmp(p->pfik_name, filter))
967 return (0); /* exact match */
969 if (n < 1 || n >= IFNAMSIZ)
970 return (1); /* sanity check */
971 if (filter[n-1] >= '0' && filter[n-1] <= '9')
972 return (1); /* only do exact match in that case */
973 if (strncmp(p->pfik_name, filter, n))
974 return (1); /* prefix doesn't match */
975 return (p->pfik_name[n] < '0' || p->pfik_name[n] > '9');
979 pfi_set_flags(const char *name, int flags)
986 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
988 RB_FOREACH(p, pfi_ifhead, &pfi_ifs) {
990 if (pfi_skip_if(name, p))
992 p->pfik_flags |= flags;
999 pfi_clear_flags(const char *name, int flags)
1006 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
1008 RB_FOREACH(p, pfi_ifhead, &pfi_ifs) {
1010 if (pfi_skip_if(name, p))
1012 p->pfik_flags &= ~flags;
1018 /* from pf_print_state.c */
1020 pfi_unmask(void *addr)
1022 struct pf_addr *m = addr;
1023 int i = 31, j = 0, b = 0;
1026 while (j < 4 && m->addr32[j] == 0xffffffff) {
1031 tmp = ntohl(m->addr32[j]);
1032 for (i = 31; tmp & (1 << i); --i)
1040 pfi_attach_ifnet_event(void *arg __unused, struct ifnet *ifp)
1043 CURVNET_SET(ifp->if_vnet);
1045 pfi_attach_ifnet(ifp);
1047 pf_altq_ifnet_event(ifp, 0);
1054 pfi_detach_ifnet_event(void *arg __unused, struct ifnet *ifp)
1057 CURVNET_SET(ifp->if_vnet);
1059 pfi_detach_ifnet(ifp);
1061 pf_altq_ifnet_event(ifp, 1);
1068 pfi_attach_group_event(void *arg , struct ifg_group *ifg)
1071 CURVNET_SET((struct vnet *)arg);
1073 pfi_attach_ifgroup(ifg);
1079 pfi_change_group_event(void *arg, char *gname)
1082 CURVNET_SET((struct vnet *)arg);
1084 pfi_group_change(gname);
1090 pfi_detach_group_event(void *arg, struct ifg_group *ifg)
1093 CURVNET_SET((struct vnet *)arg);
1095 pfi_detach_ifgroup(ifg);
1101 pfi_ifaddr_event(void *arg __unused, struct ifnet *ifp)
1104 CURVNET_SET(ifp->if_vnet);
1106 if (ifp && ifp->if_pf_kif)
1107 pfi_kifaddr_update(ifp->if_pf_kif);
1111 #endif /* __FreeBSD__ */