2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2001 Daniel Hartmeier
5 * Copyright (c) 2003 Cedric Berger
6 * Copyright (c) 2005 Henning Brauer <henning@openbsd.org>
7 * Copyright (c) 2005 Ryan McBride <mcbride@openbsd.org>
8 * Copyright (c) 2012 Gleb Smirnoff <glebius@FreeBSD.org>
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
15 * - Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * - Redistributions in binary form must reproduce the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer in the documentation and/or other materials provided
20 * with the distribution.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
28 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
29 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
30 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
35 * $OpenBSD: pf_if.c,v 1.54 2008/06/14 16:55:28 mk Exp $
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
42 #include "opt_inet6.h"
44 #include <sys/param.h>
45 #include <sys/kernel.h>
46 #include <sys/eventhandler.h>
49 #include <sys/socket.h>
52 #include <net/if_var.h>
54 #include <net/pfvar.h>
55 #include <net/route.h>
57 VNET_DEFINE(struct pfi_kif *, pfi_all);
58 VNET_DEFINE_STATIC(long, pfi_update);
59 #define V_pfi_update VNET(pfi_update)
60 #define PFI_BUFFER_MAX 0x10000
62 VNET_DECLARE(int, pf_vnet_active);
63 #define V_pf_vnet_active VNET(pf_vnet_active)
65 VNET_DEFINE_STATIC(struct pfr_addr *, pfi_buffer);
66 VNET_DEFINE_STATIC(int, pfi_buffer_cnt);
67 VNET_DEFINE_STATIC(int, pfi_buffer_max);
68 #define V_pfi_buffer VNET(pfi_buffer)
69 #define V_pfi_buffer_cnt VNET(pfi_buffer_cnt)
70 #define V_pfi_buffer_max VNET(pfi_buffer_max)
72 eventhandler_tag pfi_attach_cookie;
73 eventhandler_tag pfi_detach_cookie;
74 eventhandler_tag pfi_attach_group_cookie;
75 eventhandler_tag pfi_change_group_cookie;
76 eventhandler_tag pfi_detach_group_cookie;
77 eventhandler_tag pfi_ifaddr_event_cookie;
79 static void pfi_attach_ifnet(struct ifnet *);
80 static void pfi_attach_ifgroup(struct ifg_group *);
82 static void pfi_kif_update(struct pfi_kif *);
83 static void pfi_dynaddr_update(struct pfi_dynaddr *dyn);
84 static void pfi_table_update(struct pfr_ktable *, struct pfi_kif *, int,
86 static void pfi_instance_add(struct ifnet *, int, int);
87 static void pfi_address_add(struct sockaddr *, int, int);
88 static int pfi_if_compare(struct pfi_kif *, struct pfi_kif *);
89 static int pfi_skip_if(const char *, struct pfi_kif *);
90 static int pfi_unmask(void *);
91 static void pfi_attach_ifnet_event(void * __unused, struct ifnet *);
92 static void pfi_detach_ifnet_event(void * __unused, struct ifnet *);
93 static void pfi_attach_group_event(void * __unused, struct ifg_group *);
94 static void pfi_change_group_event(void * __unused, char *);
95 static void pfi_detach_group_event(void * __unused, struct ifg_group *);
96 static void pfi_ifaddr_event(void * __unused, struct ifnet *);
98 RB_HEAD(pfi_ifhead, pfi_kif);
99 static RB_PROTOTYPE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare);
100 static RB_GENERATE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare);
101 VNET_DEFINE_STATIC(struct pfi_ifhead, pfi_ifs);
102 #define V_pfi_ifs VNET(pfi_ifs)
104 #define PFI_BUFFER_MAX 0x10000
105 MALLOC_DEFINE(PFI_MTYPE, "pf_ifnet", "pf(4) interface database");
107 LIST_HEAD(pfi_list, pfi_kif);
108 VNET_DEFINE_STATIC(struct pfi_list, pfi_unlinked_kifs);
109 #define V_pfi_unlinked_kifs VNET(pfi_unlinked_kifs)
110 static struct mtx pfi_unlnkdkifs_mtx;
111 MTX_SYSINIT(pfi_unlnkdkifs_mtx, &pfi_unlnkdkifs_mtx, "pf unlinked interfaces",
115 pfi_initialize_vnet(void)
117 struct ifg_group *ifg;
121 V_pfi_buffer_max = 64;
122 V_pfi_buffer = malloc(V_pfi_buffer_max * sizeof(*V_pfi_buffer),
123 PFI_MTYPE, M_WAITOK);
125 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
127 V_pfi_all = pfi_kif_attach(kif, IFG_ALL);
131 CK_STAILQ_FOREACH(ifg, &V_ifg_head, ifg_next)
132 pfi_attach_ifgroup(ifg);
133 CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link)
134 pfi_attach_ifnet(ifp);
142 pfi_attach_cookie = EVENTHANDLER_REGISTER(ifnet_arrival_event,
143 pfi_attach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
144 pfi_detach_cookie = EVENTHANDLER_REGISTER(ifnet_departure_event,
145 pfi_detach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
146 pfi_attach_group_cookie = EVENTHANDLER_REGISTER(group_attach_event,
147 pfi_attach_group_event, NULL, EVENTHANDLER_PRI_ANY);
148 pfi_change_group_cookie = EVENTHANDLER_REGISTER(group_change_event,
149 pfi_change_group_event, NULL, EVENTHANDLER_PRI_ANY);
150 pfi_detach_group_cookie = EVENTHANDLER_REGISTER(group_detach_event,
151 pfi_detach_group_event, NULL, EVENTHANDLER_PRI_ANY);
152 pfi_ifaddr_event_cookie = EVENTHANDLER_REGISTER(ifaddr_event,
153 pfi_ifaddr_event, NULL, EVENTHANDLER_PRI_ANY);
157 pfi_cleanup_vnet(void)
164 while ((kif = RB_MIN(pfi_ifhead, &V_pfi_ifs))) {
165 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, kif);
167 kif->pfik_group->ifg_pf_kif = NULL;
169 kif->pfik_ifp->if_pf_kif = NULL;
170 free(kif, PFI_MTYPE);
173 mtx_lock(&pfi_unlnkdkifs_mtx);
174 while ((kif = LIST_FIRST(&V_pfi_unlinked_kifs))) {
175 LIST_REMOVE(kif, pfik_list);
176 free(kif, PFI_MTYPE);
178 mtx_unlock(&pfi_unlnkdkifs_mtx);
180 free(V_pfi_buffer, PFI_MTYPE);
187 EVENTHANDLER_DEREGISTER(ifnet_arrival_event, pfi_attach_cookie);
188 EVENTHANDLER_DEREGISTER(ifnet_departure_event, pfi_detach_cookie);
189 EVENTHANDLER_DEREGISTER(group_attach_event, pfi_attach_group_cookie);
190 EVENTHANDLER_DEREGISTER(group_change_event, pfi_change_group_cookie);
191 EVENTHANDLER_DEREGISTER(group_detach_event, pfi_detach_group_cookie);
192 EVENTHANDLER_DEREGISTER(ifaddr_event, pfi_ifaddr_event_cookie);
196 pfi_kif_find(const char *kif_name)
198 struct pfi_kif_cmp s;
202 bzero(&s, sizeof(s));
203 strlcpy(s.pfik_name, kif_name, sizeof(s.pfik_name));
205 return (RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&s));
209 pfi_kif_attach(struct pfi_kif *kif, const char *kif_name)
211 struct pfi_kif *kif1;
214 KASSERT(kif != NULL, ("%s: null kif", __func__));
216 kif1 = pfi_kif_find(kif_name);
218 free(kif, PFI_MTYPE);
222 bzero(kif, sizeof(*kif));
223 strlcpy(kif->pfik_name, kif_name, sizeof(kif->pfik_name));
225 * It seems that the value of time_second is in unintialzied state
226 * when pf sets interface statistics clear time in boot phase if pf
227 * was statically linked to kernel. Instead of setting the bogus
228 * time value have pfi_get_ifaces handle this case. In
229 * pfi_get_ifaces it uses time_second if it sees the time is 0.
231 kif->pfik_tzero = time_second > 1 ? time_second : 0;
232 TAILQ_INIT(&kif->pfik_dynaddrs);
234 RB_INSERT(pfi_ifhead, &V_pfi_ifs, kif);
240 pfi_kif_ref(struct pfi_kif *kif)
244 kif->pfik_rulerefs++;
248 pfi_kif_unref(struct pfi_kif *kif)
252 KASSERT(kif->pfik_rulerefs > 0, ("%s: %p has zero refs", __func__, kif));
254 kif->pfik_rulerefs--;
256 if (kif->pfik_rulerefs > 0)
259 /* kif referencing an existing ifnet or group should exist. */
260 if (kif->pfik_ifp != NULL || kif->pfik_group != NULL || kif == V_pfi_all)
263 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, kif);
265 kif->pfik_flags |= PFI_IFLAG_REFS;
267 mtx_lock(&pfi_unlnkdkifs_mtx);
268 LIST_INSERT_HEAD(&V_pfi_unlinked_kifs, kif, pfik_list);
269 mtx_unlock(&pfi_unlnkdkifs_mtx);
275 struct pfi_kif *kif, *kif1;
278 * Do naive mark-and-sweep garbage collecting of old kifs.
279 * Reference flag is raised by pf_purge_expired_states().
281 mtx_lock(&pfi_unlnkdkifs_mtx);
282 LIST_FOREACH_SAFE(kif, &V_pfi_unlinked_kifs, pfik_list, kif1) {
283 if (!(kif->pfik_flags & PFI_IFLAG_REFS)) {
284 LIST_REMOVE(kif, pfik_list);
285 free(kif, PFI_MTYPE);
287 kif->pfik_flags &= ~PFI_IFLAG_REFS;
289 mtx_unlock(&pfi_unlnkdkifs_mtx);
293 pfi_kif_match(struct pfi_kif *rule_kif, struct pfi_kif *packet_kif)
297 if (rule_kif == NULL || rule_kif == packet_kif)
300 if (rule_kif->pfik_group != NULL) {
301 IF_ADDR_RLOCK(packet_kif->pfik_ifp);
302 CK_STAILQ_FOREACH(p, &packet_kif->pfik_ifp->if_groups, ifgl_next)
303 if (p->ifgl_group == rule_kif->pfik_group) {
304 IF_ADDR_RUNLOCK(packet_kif->pfik_ifp);
307 IF_ADDR_RUNLOCK(packet_kif->pfik_ifp);
315 pfi_attach_ifnet(struct ifnet *ifp)
319 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
323 kif = pfi_kif_attach(kif, ifp->if_xname);
326 ifp->if_pf_kif = kif;
333 pfi_attach_ifgroup(struct ifg_group *ifg)
337 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
341 kif = pfi_kif_attach(kif, ifg->ifg_group);
343 kif->pfik_group = ifg;
344 ifg->ifg_pf_kif = kif;
349 pfi_match_addr(struct pfi_dynaddr *dyn, struct pf_addr *a, sa_family_t af)
354 switch (dyn->pfid_acnt4) {
358 return (PF_MATCHA(0, &dyn->pfid_addr4,
359 &dyn->pfid_mask4, a, AF_INET));
361 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET));
367 switch (dyn->pfid_acnt6) {
371 return (PF_MATCHA(0, &dyn->pfid_addr6,
372 &dyn->pfid_mask6, a, AF_INET6));
374 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET6));
384 pfi_dynaddr_setup(struct pf_addr_wrap *aw, sa_family_t af)
386 struct pfi_dynaddr *dyn;
387 char tblname[PF_TABLE_NAME_SIZE];
388 struct pf_ruleset *ruleset = NULL;
393 KASSERT(aw->type == PF_ADDR_DYNIFTL, ("%s: type %u",
394 __func__, aw->type));
395 KASSERT(aw->p.dyn == NULL, ("%s: dyn is %p", __func__, aw->p.dyn));
397 if ((dyn = malloc(sizeof(*dyn), PFI_MTYPE, M_NOWAIT | M_ZERO)) == NULL)
400 if ((kif = malloc(sizeof(*kif), PFI_MTYPE, M_NOWAIT)) == NULL) {
401 free(dyn, PFI_MTYPE);
405 if (!strcmp(aw->v.ifname, "self"))
406 dyn->pfid_kif = pfi_kif_attach(kif, IFG_ALL);
408 dyn->pfid_kif = pfi_kif_attach(kif, aw->v.ifname);
409 pfi_kif_ref(dyn->pfid_kif);
411 dyn->pfid_net = pfi_unmask(&aw->v.a.mask);
412 if (af == AF_INET && dyn->pfid_net == 32)
414 strlcpy(tblname, aw->v.ifname, sizeof(tblname));
415 if (aw->iflags & PFI_AFLAG_NETWORK)
416 strlcat(tblname, ":network", sizeof(tblname));
417 if (aw->iflags & PFI_AFLAG_BROADCAST)
418 strlcat(tblname, ":broadcast", sizeof(tblname));
419 if (aw->iflags & PFI_AFLAG_PEER)
420 strlcat(tblname, ":peer", sizeof(tblname));
421 if (aw->iflags & PFI_AFLAG_NOALIAS)
422 strlcat(tblname, ":0", sizeof(tblname));
423 if (dyn->pfid_net != 128)
424 snprintf(tblname + strlen(tblname),
425 sizeof(tblname) - strlen(tblname), "/%d", dyn->pfid_net);
426 if ((ruleset = pf_find_or_create_ruleset(PF_RESERVED_ANCHOR)) == NULL) {
431 if ((dyn->pfid_kt = pfr_attach_table(ruleset, tblname)) == NULL) {
436 dyn->pfid_kt->pfrkt_flags |= PFR_TFLAG_ACTIVE;
437 dyn->pfid_iflags = aw->iflags;
440 TAILQ_INSERT_TAIL(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
442 pfi_kif_update(dyn->pfid_kif);
447 if (dyn->pfid_kt != NULL)
448 pfr_detach_table(dyn->pfid_kt);
450 pf_remove_if_empty_ruleset(ruleset);
451 if (dyn->pfid_kif != NULL)
452 pfi_kif_unref(dyn->pfid_kif);
453 free(dyn, PFI_MTYPE);
459 pfi_kif_update(struct pfi_kif *kif)
461 struct ifg_list *ifgl;
462 struct pfi_dynaddr *p;
466 /* update all dynaddr */
467 TAILQ_FOREACH(p, &kif->pfik_dynaddrs, entry)
468 pfi_dynaddr_update(p);
470 /* again for all groups kif is member of */
471 if (kif->pfik_ifp != NULL) {
472 IF_ADDR_RLOCK(kif->pfik_ifp);
473 CK_STAILQ_FOREACH(ifgl, &kif->pfik_ifp->if_groups, ifgl_next)
474 pfi_kif_update((struct pfi_kif *)
475 ifgl->ifgl_group->ifg_pf_kif);
476 IF_ADDR_RUNLOCK(kif->pfik_ifp);
481 pfi_dynaddr_update(struct pfi_dynaddr *dyn)
484 struct pfr_ktable *kt;
487 KASSERT(dyn && dyn->pfid_kif && dyn->pfid_kt,
488 ("%s: bad argument", __func__));
493 if (kt->pfrkt_larg != V_pfi_update) {
494 /* this table needs to be brought up-to-date */
495 pfi_table_update(kt, kif, dyn->pfid_net, dyn->pfid_iflags);
496 kt->pfrkt_larg = V_pfi_update;
498 pfr_dynaddr_update(kt, dyn);
502 pfi_table_update(struct pfr_ktable *kt, struct pfi_kif *kif, int net, int flags)
505 struct ifg_member *ifgm;
507 V_pfi_buffer_cnt = 0;
509 if (kif->pfik_ifp != NULL)
510 pfi_instance_add(kif->pfik_ifp, net, flags);
511 else if (kif->pfik_group != NULL) {
512 IFNET_RLOCK_NOSLEEP();
513 CK_STAILQ_FOREACH(ifgm, &kif->pfik_group->ifg_members, ifgm_next)
514 pfi_instance_add(ifgm->ifgm_ifp, net, flags);
515 IFNET_RUNLOCK_NOSLEEP();
518 if ((e = pfr_set_addrs(&kt->pfrkt_t, V_pfi_buffer, V_pfi_buffer_cnt, &size2,
519 NULL, NULL, NULL, 0, PFR_TFLAG_ALLMASK)))
520 printf("%s: cannot set %d new addresses into table %s: %d\n",
521 __func__, V_pfi_buffer_cnt, kt->pfrkt_name, e);
525 pfi_instance_add(struct ifnet *ifp, int net, int flags)
528 int got4 = 0, got6 = 0;
532 CK_STAILQ_FOREACH(ia, &ifp->if_addrhead, ifa_link) {
533 if (ia->ifa_addr == NULL)
535 af = ia->ifa_addr->sa_family;
536 if (af != AF_INET && af != AF_INET6)
539 * XXX: For point-to-point interfaces, (ifname:0) and IPv4,
540 * jump over addresses without a proper route to work
541 * around a problem with ppp not fully removing the
542 * address used during IPCP.
544 if ((ifp->if_flags & IFF_POINTOPOINT) &&
545 !(ia->ifa_flags & IFA_ROUTE) &&
546 (flags & PFI_AFLAG_NOALIAS) && (af == AF_INET))
548 if ((flags & PFI_AFLAG_BROADCAST) && af == AF_INET6)
550 if ((flags & PFI_AFLAG_BROADCAST) &&
551 !(ifp->if_flags & IFF_BROADCAST))
553 if ((flags & PFI_AFLAG_PEER) &&
554 !(ifp->if_flags & IFF_POINTOPOINT))
556 if ((flags & PFI_AFLAG_NETWORK) && af == AF_INET6 &&
557 IN6_IS_ADDR_LINKLOCAL(
558 &((struct sockaddr_in6 *)ia->ifa_addr)->sin6_addr))
560 if (flags & PFI_AFLAG_NOALIAS) {
561 if (af == AF_INET && got4)
563 if (af == AF_INET6 && got6)
568 else if (af == AF_INET6)
571 if (net2 == 128 && (flags & PFI_AFLAG_NETWORK)) {
573 net2 = pfi_unmask(&((struct sockaddr_in *)
574 ia->ifa_netmask)->sin_addr);
575 else if (af == AF_INET6)
576 net2 = pfi_unmask(&((struct sockaddr_in6 *)
577 ia->ifa_netmask)->sin6_addr);
579 if (af == AF_INET && net2 > 32)
581 if (flags & PFI_AFLAG_BROADCAST)
582 pfi_address_add(ia->ifa_broadaddr, af, net2);
583 else if (flags & PFI_AFLAG_PEER)
584 pfi_address_add(ia->ifa_dstaddr, af, net2);
586 pfi_address_add(ia->ifa_addr, af, net2);
588 IF_ADDR_RUNLOCK(ifp);
592 pfi_address_add(struct sockaddr *sa, int af, int net)
597 if (V_pfi_buffer_cnt >= V_pfi_buffer_max) {
598 int new_max = V_pfi_buffer_max * 2;
600 if (new_max > PFI_BUFFER_MAX) {
601 printf("%s: address buffer full (%d/%d)\n", __func__,
602 V_pfi_buffer_cnt, PFI_BUFFER_MAX);
605 p = malloc(new_max * sizeof(*V_pfi_buffer), PFI_MTYPE,
608 printf("%s: no memory to grow buffer (%d/%d)\n",
609 __func__, V_pfi_buffer_cnt, PFI_BUFFER_MAX);
612 memcpy(p, V_pfi_buffer, V_pfi_buffer_max * sizeof(*V_pfi_buffer));
613 /* no need to zero buffer */
614 free(V_pfi_buffer, PFI_MTYPE);
616 V_pfi_buffer_max = new_max;
618 if (af == AF_INET && net > 32)
620 p = V_pfi_buffer + V_pfi_buffer_cnt++;
621 bzero(p, sizeof(*p));
625 p->pfra_ip4addr = ((struct sockaddr_in *)sa)->sin_addr;
626 else if (af == AF_INET6) {
627 p->pfra_ip6addr = ((struct sockaddr_in6 *)sa)->sin6_addr;
628 if (IN6_IS_SCOPE_EMBED(&p->pfra_ip6addr))
629 p->pfra_ip6addr.s6_addr16[1] = 0;
631 /* mask network address bits */
633 ((caddr_t)p)[p->pfra_net/8] &= ~(0xFF >> (p->pfra_net%8));
634 for (i = (p->pfra_net+7)/8; i < sizeof(p->pfra_u); i++)
639 pfi_dynaddr_remove(struct pfi_dynaddr *dyn)
642 KASSERT(dyn->pfid_kif != NULL, ("%s: null pfid_kif", __func__));
643 KASSERT(dyn->pfid_kt != NULL, ("%s: null pfid_kt", __func__));
645 TAILQ_REMOVE(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
646 pfi_kif_unref(dyn->pfid_kif);
647 pfr_detach_table(dyn->pfid_kt);
648 free(dyn, PFI_MTYPE);
652 pfi_dynaddr_copyout(struct pf_addr_wrap *aw)
655 KASSERT(aw->type == PF_ADDR_DYNIFTL,
656 ("%s: type %u", __func__, aw->type));
658 if (aw->p.dyn == NULL || aw->p.dyn->pfid_kif == NULL)
660 aw->p.dyncnt = aw->p.dyn->pfid_acnt4 + aw->p.dyn->pfid_acnt6;
664 pfi_if_compare(struct pfi_kif *p, struct pfi_kif *q)
666 return (strncmp(p->pfik_name, q->pfik_name, IFNAMSIZ));
670 pfi_update_status(const char *name, struct pf_status *pfs)
673 struct pfi_kif_cmp key;
674 struct ifg_member p_member, *ifgm;
675 CK_STAILQ_HEAD(, ifg_member) ifg_members;
678 strlcpy(key.pfik_name, name, sizeof(key.pfik_name));
679 p = RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&key);
683 if (p->pfik_group != NULL) {
684 bcopy(&p->pfik_group->ifg_members, &ifg_members,
685 sizeof(ifg_members));
687 /* build a temporary list for p only */
688 bzero(&p_member, sizeof(p_member));
689 p_member.ifgm_ifp = p->pfik_ifp;
690 CK_STAILQ_INIT(&ifg_members);
691 CK_STAILQ_INSERT_TAIL(&ifg_members, &p_member, ifgm_next);
694 bzero(pfs->pcounters, sizeof(pfs->pcounters));
695 bzero(pfs->bcounters, sizeof(pfs->bcounters));
697 CK_STAILQ_FOREACH(ifgm, &ifg_members, ifgm_next) {
698 if (ifgm->ifgm_ifp == NULL || ifgm->ifgm_ifp->if_pf_kif == NULL)
700 p = (struct pfi_kif *)ifgm->ifgm_ifp->if_pf_kif;
702 /* just clear statistics */
704 bzero(p->pfik_packets, sizeof(p->pfik_packets));
705 bzero(p->pfik_bytes, sizeof(p->pfik_bytes));
706 p->pfik_tzero = time_second;
709 for (i = 0; i < 2; i++)
710 for (j = 0; j < 2; j++)
711 for (k = 0; k < 2; k++) {
712 pfs->pcounters[i][j][k] +=
713 p->pfik_packets[i][j][k];
714 pfs->bcounters[i][j] +=
715 p->pfik_bytes[i][j][k];
721 pfi_get_ifaces(const char *name, struct pfi_kif *buf, int *size)
723 struct pfi_kif *p, *nextp;
726 for (p = RB_MIN(pfi_ifhead, &V_pfi_ifs); p; p = nextp) {
727 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
728 if (pfi_skip_if(name, p))
733 p->pfik_tzero = time_second;
734 bcopy(p, buf++, sizeof(*buf));
735 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
741 pfi_skip_if(const char *filter, struct pfi_kif *p)
746 if (filter == NULL || !*filter)
748 if (!strcmp(p->pfik_name, filter))
749 return (0); /* exact match */
751 if (n < 1 || n >= IFNAMSIZ)
752 return (1); /* sanity check */
753 if (filter[n-1] >= '0' && filter[n-1] <= '9')
754 return (1); /* group names may not end in a digit */
755 if (p->pfik_ifp != NULL) {
756 IF_ADDR_RLOCK(p->pfik_ifp);
757 CK_STAILQ_FOREACH(i, &p->pfik_ifp->if_groups, ifgl_next) {
758 if (!strncmp(i->ifgl_group->ifg_group, filter,
760 IF_ADDR_RUNLOCK(p->pfik_ifp);
761 return (0); /* iface is in group "filter" */
764 IF_ADDR_RUNLOCK(p->pfik_ifp);
770 pfi_set_flags(const char *name, int flags)
774 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
775 if (pfi_skip_if(name, p))
777 p->pfik_flags |= flags;
783 pfi_clear_flags(const char *name, int flags)
787 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
788 if (pfi_skip_if(name, p))
790 p->pfik_flags &= ~flags;
795 /* from pf_print_state.c */
797 pfi_unmask(void *addr)
799 struct pf_addr *m = addr;
800 int i = 31, j = 0, b = 0;
803 while (j < 4 && m->addr32[j] == 0xffffffff) {
808 tmp = ntohl(m->addr32[j]);
809 for (i = 31; tmp & (1 << i); --i)
816 pfi_attach_ifnet_event(void *arg __unused, struct ifnet *ifp)
819 if (V_pf_vnet_active == 0) {
820 /* Avoid teardown race in the least expensive way. */
823 pfi_attach_ifnet(ifp);
826 pf_altq_ifnet_event(ifp, 0);
832 pfi_detach_ifnet_event(void *arg __unused, struct ifnet *ifp)
834 struct pfi_kif *kif = (struct pfi_kif *)ifp->if_pf_kif;
839 if (V_pf_vnet_active == 0) {
840 /* Avoid teardown race in the least expensive way. */
847 kif->pfik_ifp = NULL;
848 ifp->if_pf_kif = NULL;
850 pf_altq_ifnet_event(ifp, 1);
856 pfi_attach_group_event(void *arg __unused, struct ifg_group *ifg)
859 if (V_pf_vnet_active == 0) {
860 /* Avoid teardown race in the least expensive way. */
863 pfi_attach_ifgroup(ifg);
867 pfi_change_group_event(void *arg __unused, char *gname)
871 if (V_pf_vnet_active == 0) {
872 /* Avoid teardown race in the least expensive way. */
876 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
879 kif = pfi_kif_attach(kif, gname);
885 pfi_detach_group_event(void *arg __unused, struct ifg_group *ifg)
887 struct pfi_kif *kif = (struct pfi_kif *)ifg->ifg_pf_kif;
892 if (V_pf_vnet_active == 0) {
893 /* Avoid teardown race in the least expensive way. */
899 kif->pfik_group = NULL;
900 ifg->ifg_pf_kif = NULL;
905 pfi_ifaddr_event(void *arg __unused, struct ifnet *ifp)
907 if (ifp->if_pf_kif == NULL)
910 if (V_pf_vnet_active == 0) {
911 /* Avoid teardown race in the least expensive way. */
915 if (ifp && ifp->if_pf_kif) {
917 pfi_kif_update(ifp->if_pf_kif);