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/rwlock.h>
50 #include <sys/socket.h>
53 #include <net/if_var.h>
55 #include <net/pfvar.h>
56 #include <net/route.h>
58 VNET_DEFINE(struct pfi_kif *, pfi_all);
59 static VNET_DEFINE(long, pfi_update);
60 #define V_pfi_update VNET(pfi_update)
61 #define PFI_BUFFER_MAX 0x10000
63 VNET_DECLARE(int, pf_vnet_active);
64 #define V_pf_vnet_active VNET(pf_vnet_active)
66 static VNET_DEFINE(struct pfr_addr *, pfi_buffer);
67 static VNET_DEFINE(int, pfi_buffer_cnt);
68 static VNET_DEFINE(int, pfi_buffer_max);
69 #define V_pfi_buffer VNET(pfi_buffer)
70 #define V_pfi_buffer_cnt VNET(pfi_buffer_cnt)
71 #define V_pfi_buffer_max VNET(pfi_buffer_max)
73 eventhandler_tag pfi_attach_cookie;
74 eventhandler_tag pfi_detach_cookie;
75 eventhandler_tag pfi_attach_group_cookie;
76 eventhandler_tag pfi_change_group_cookie;
77 eventhandler_tag pfi_detach_group_cookie;
78 eventhandler_tag pfi_ifaddr_event_cookie;
80 static void pfi_attach_ifnet(struct ifnet *);
81 static void pfi_attach_ifgroup(struct ifg_group *);
83 static void pfi_kif_update(struct pfi_kif *);
84 static void pfi_dynaddr_update(struct pfi_dynaddr *dyn);
85 static void pfi_table_update(struct pfr_ktable *, struct pfi_kif *, int,
87 static void pfi_instance_add(struct ifnet *, int, int);
88 static void pfi_address_add(struct sockaddr *, int, int);
89 static int pfi_if_compare(struct pfi_kif *, struct pfi_kif *);
90 static int pfi_skip_if(const char *, struct pfi_kif *);
91 static int pfi_unmask(void *);
92 static void pfi_attach_ifnet_event(void * __unused, struct ifnet *);
93 static void pfi_detach_ifnet_event(void * __unused, struct ifnet *);
94 static void pfi_attach_group_event(void * __unused, struct ifg_group *);
95 static void pfi_change_group_event(void * __unused, char *);
96 static void pfi_detach_group_event(void * __unused, struct ifg_group *);
97 static void pfi_ifaddr_event(void * __unused, struct ifnet *);
99 RB_HEAD(pfi_ifhead, pfi_kif);
100 static RB_PROTOTYPE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare);
101 static RB_GENERATE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare);
102 static VNET_DEFINE(struct pfi_ifhead, pfi_ifs);
103 #define V_pfi_ifs VNET(pfi_ifs)
105 #define PFI_BUFFER_MAX 0x10000
106 MALLOC_DEFINE(PFI_MTYPE, "pf_ifnet", "pf(4) interface database");
108 LIST_HEAD(pfi_list, pfi_kif);
109 static VNET_DEFINE(struct pfi_list, pfi_unlinked_kifs);
110 #define V_pfi_unlinked_kifs VNET(pfi_unlinked_kifs)
111 static struct mtx pfi_unlnkdkifs_mtx;
112 MTX_SYSINIT(pfi_unlnkdkifs_mtx, &pfi_unlnkdkifs_mtx, "pf unlinked interfaces",
116 pfi_initialize_vnet(void)
118 struct ifg_group *ifg;
122 V_pfi_buffer_max = 64;
123 V_pfi_buffer = malloc(V_pfi_buffer_max * sizeof(*V_pfi_buffer),
124 PFI_MTYPE, M_WAITOK);
126 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
128 V_pfi_all = pfi_kif_attach(kif, IFG_ALL);
132 TAILQ_FOREACH(ifg, &V_ifg_head, ifg_next)
133 pfi_attach_ifgroup(ifg);
134 TAILQ_FOREACH(ifp, &V_ifnet, if_link)
135 pfi_attach_ifnet(ifp);
143 pfi_attach_cookie = EVENTHANDLER_REGISTER(ifnet_arrival_event,
144 pfi_attach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
145 pfi_detach_cookie = EVENTHANDLER_REGISTER(ifnet_departure_event,
146 pfi_detach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
147 pfi_attach_group_cookie = EVENTHANDLER_REGISTER(group_attach_event,
148 pfi_attach_group_event, NULL, EVENTHANDLER_PRI_ANY);
149 pfi_change_group_cookie = EVENTHANDLER_REGISTER(group_change_event,
150 pfi_change_group_event, NULL, EVENTHANDLER_PRI_ANY);
151 pfi_detach_group_cookie = EVENTHANDLER_REGISTER(group_detach_event,
152 pfi_detach_group_event, NULL, EVENTHANDLER_PRI_ANY);
153 pfi_ifaddr_event_cookie = EVENTHANDLER_REGISTER(ifaddr_event,
154 pfi_ifaddr_event, NULL, EVENTHANDLER_PRI_ANY);
158 pfi_cleanup_vnet(void)
165 while ((kif = RB_MIN(pfi_ifhead, &V_pfi_ifs))) {
166 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, kif);
168 kif->pfik_group->ifg_pf_kif = NULL;
170 kif->pfik_ifp->if_pf_kif = NULL;
171 free(kif, PFI_MTYPE);
174 mtx_lock(&pfi_unlnkdkifs_mtx);
175 while ((kif = LIST_FIRST(&V_pfi_unlinked_kifs))) {
176 LIST_REMOVE(kif, pfik_list);
177 free(kif, PFI_MTYPE);
179 mtx_unlock(&pfi_unlnkdkifs_mtx);
181 free(V_pfi_buffer, PFI_MTYPE);
188 EVENTHANDLER_DEREGISTER(ifnet_arrival_event, pfi_attach_cookie);
189 EVENTHANDLER_DEREGISTER(ifnet_departure_event, pfi_detach_cookie);
190 EVENTHANDLER_DEREGISTER(group_attach_event, pfi_attach_group_cookie);
191 EVENTHANDLER_DEREGISTER(group_change_event, pfi_change_group_cookie);
192 EVENTHANDLER_DEREGISTER(group_detach_event, pfi_detach_group_cookie);
193 EVENTHANDLER_DEREGISTER(ifaddr_event, pfi_ifaddr_event_cookie);
197 pfi_kif_find(const char *kif_name)
199 struct pfi_kif_cmp s;
203 bzero(&s, sizeof(s));
204 strlcpy(s.pfik_name, kif_name, sizeof(s.pfik_name));
206 return (RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&s));
210 pfi_kif_attach(struct pfi_kif *kif, const char *kif_name)
212 struct pfi_kif *kif1;
215 KASSERT(kif != NULL, ("%s: null kif", __func__));
217 kif1 = pfi_kif_find(kif_name);
219 free(kif, PFI_MTYPE);
223 bzero(kif, sizeof(*kif));
224 strlcpy(kif->pfik_name, kif_name, sizeof(kif->pfik_name));
226 * It seems that the value of time_second is in unintialzied state
227 * when pf sets interface statistics clear time in boot phase if pf
228 * was statically linked to kernel. Instead of setting the bogus
229 * time value have pfi_get_ifaces handle this case. In
230 * pfi_get_ifaces it uses time_second if it sees the time is 0.
232 kif->pfik_tzero = time_second > 1 ? time_second : 0;
233 TAILQ_INIT(&kif->pfik_dynaddrs);
235 RB_INSERT(pfi_ifhead, &V_pfi_ifs, kif);
241 pfi_kif_ref(struct pfi_kif *kif)
245 kif->pfik_rulerefs++;
249 pfi_kif_unref(struct pfi_kif *kif)
253 KASSERT(kif->pfik_rulerefs > 0, ("%s: %p has zero refs", __func__, kif));
255 kif->pfik_rulerefs--;
257 if (kif->pfik_rulerefs > 0)
260 /* kif referencing an existing ifnet or group should exist. */
261 if (kif->pfik_ifp != NULL || kif->pfik_group != NULL || kif == V_pfi_all)
264 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, kif);
266 kif->pfik_flags |= PFI_IFLAG_REFS;
268 mtx_lock(&pfi_unlnkdkifs_mtx);
269 LIST_INSERT_HEAD(&V_pfi_unlinked_kifs, kif, pfik_list);
270 mtx_unlock(&pfi_unlnkdkifs_mtx);
276 struct pfi_kif *kif, *kif1;
279 * Do naive mark-and-sweep garbage collecting of old kifs.
280 * Reference flag is raised by pf_purge_expired_states().
282 mtx_lock(&pfi_unlnkdkifs_mtx);
283 LIST_FOREACH_SAFE(kif, &V_pfi_unlinked_kifs, pfik_list, kif1) {
284 if (!(kif->pfik_flags & PFI_IFLAG_REFS)) {
285 LIST_REMOVE(kif, pfik_list);
286 free(kif, PFI_MTYPE);
288 kif->pfik_flags &= ~PFI_IFLAG_REFS;
290 mtx_unlock(&pfi_unlnkdkifs_mtx);
294 pfi_kif_match(struct pfi_kif *rule_kif, struct pfi_kif *packet_kif)
298 if (rule_kif == NULL || rule_kif == packet_kif)
301 if (rule_kif->pfik_group != NULL)
302 /* XXXGL: locking? */
303 TAILQ_FOREACH(p, &packet_kif->pfik_ifp->if_groups, ifgl_next)
304 if (p->ifgl_group == rule_kif->pfik_group)
311 pfi_attach_ifnet(struct ifnet *ifp)
315 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
319 kif = pfi_kif_attach(kif, ifp->if_xname);
322 ifp->if_pf_kif = kif;
329 pfi_attach_ifgroup(struct ifg_group *ifg)
333 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
337 kif = pfi_kif_attach(kif, ifg->ifg_group);
339 kif->pfik_group = ifg;
340 ifg->ifg_pf_kif = kif;
345 pfi_match_addr(struct pfi_dynaddr *dyn, struct pf_addr *a, sa_family_t af)
350 switch (dyn->pfid_acnt4) {
354 return (PF_MATCHA(0, &dyn->pfid_addr4,
355 &dyn->pfid_mask4, a, AF_INET));
357 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET));
363 switch (dyn->pfid_acnt6) {
367 return (PF_MATCHA(0, &dyn->pfid_addr6,
368 &dyn->pfid_mask6, a, AF_INET6));
370 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET6));
380 pfi_dynaddr_setup(struct pf_addr_wrap *aw, sa_family_t af)
382 struct pfi_dynaddr *dyn;
383 char tblname[PF_TABLE_NAME_SIZE];
384 struct pf_ruleset *ruleset = NULL;
389 KASSERT(aw->type == PF_ADDR_DYNIFTL, ("%s: type %u",
390 __func__, aw->type));
391 KASSERT(aw->p.dyn == NULL, ("%s: dyn is %p", __func__, aw->p.dyn));
393 if ((dyn = malloc(sizeof(*dyn), PFI_MTYPE, M_NOWAIT | M_ZERO)) == NULL)
396 if ((kif = malloc(sizeof(*kif), PFI_MTYPE, M_NOWAIT)) == NULL) {
397 free(dyn, PFI_MTYPE);
401 if (!strcmp(aw->v.ifname, "self"))
402 dyn->pfid_kif = pfi_kif_attach(kif, IFG_ALL);
404 dyn->pfid_kif = pfi_kif_attach(kif, aw->v.ifname);
405 pfi_kif_ref(dyn->pfid_kif);
407 dyn->pfid_net = pfi_unmask(&aw->v.a.mask);
408 if (af == AF_INET && dyn->pfid_net == 32)
410 strlcpy(tblname, aw->v.ifname, sizeof(tblname));
411 if (aw->iflags & PFI_AFLAG_NETWORK)
412 strlcat(tblname, ":network", sizeof(tblname));
413 if (aw->iflags & PFI_AFLAG_BROADCAST)
414 strlcat(tblname, ":broadcast", sizeof(tblname));
415 if (aw->iflags & PFI_AFLAG_PEER)
416 strlcat(tblname, ":peer", sizeof(tblname));
417 if (aw->iflags & PFI_AFLAG_NOALIAS)
418 strlcat(tblname, ":0", sizeof(tblname));
419 if (dyn->pfid_net != 128)
420 snprintf(tblname + strlen(tblname),
421 sizeof(tblname) - strlen(tblname), "/%d", dyn->pfid_net);
422 if ((ruleset = pf_find_or_create_ruleset(PF_RESERVED_ANCHOR)) == NULL) {
427 if ((dyn->pfid_kt = pfr_attach_table(ruleset, tblname)) == NULL) {
432 dyn->pfid_kt->pfrkt_flags |= PFR_TFLAG_ACTIVE;
433 dyn->pfid_iflags = aw->iflags;
436 TAILQ_INSERT_TAIL(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
438 pfi_kif_update(dyn->pfid_kif);
443 if (dyn->pfid_kt != NULL)
444 pfr_detach_table(dyn->pfid_kt);
446 pf_remove_if_empty_ruleset(ruleset);
447 if (dyn->pfid_kif != NULL)
448 pfi_kif_unref(dyn->pfid_kif);
449 free(dyn, PFI_MTYPE);
455 pfi_kif_update(struct pfi_kif *kif)
457 struct ifg_list *ifgl;
458 struct pfi_dynaddr *p;
462 /* update all dynaddr */
463 TAILQ_FOREACH(p, &kif->pfik_dynaddrs, entry)
464 pfi_dynaddr_update(p);
466 /* again for all groups kif is member of */
467 if (kif->pfik_ifp != NULL) {
468 IF_ADDR_RLOCK(kif->pfik_ifp);
469 TAILQ_FOREACH(ifgl, &kif->pfik_ifp->if_groups, ifgl_next)
470 pfi_kif_update((struct pfi_kif *)
471 ifgl->ifgl_group->ifg_pf_kif);
472 IF_ADDR_RUNLOCK(kif->pfik_ifp);
477 pfi_dynaddr_update(struct pfi_dynaddr *dyn)
480 struct pfr_ktable *kt;
483 KASSERT(dyn && dyn->pfid_kif && dyn->pfid_kt,
484 ("%s: bad argument", __func__));
489 if (kt->pfrkt_larg != V_pfi_update) {
490 /* this table needs to be brought up-to-date */
491 pfi_table_update(kt, kif, dyn->pfid_net, dyn->pfid_iflags);
492 kt->pfrkt_larg = V_pfi_update;
494 pfr_dynaddr_update(kt, dyn);
498 pfi_table_update(struct pfr_ktable *kt, struct pfi_kif *kif, int net, int flags)
501 struct ifg_member *ifgm;
503 V_pfi_buffer_cnt = 0;
505 if (kif->pfik_ifp != NULL)
506 pfi_instance_add(kif->pfik_ifp, net, flags);
507 else if (kif->pfik_group != NULL) {
508 IFNET_RLOCK_NOSLEEP();
509 TAILQ_FOREACH(ifgm, &kif->pfik_group->ifg_members, ifgm_next)
510 pfi_instance_add(ifgm->ifgm_ifp, net, flags);
511 IFNET_RUNLOCK_NOSLEEP();
514 if ((e = pfr_set_addrs(&kt->pfrkt_t, V_pfi_buffer, V_pfi_buffer_cnt, &size2,
515 NULL, NULL, NULL, 0, PFR_TFLAG_ALLMASK)))
516 printf("%s: cannot set %d new addresses into table %s: %d\n",
517 __func__, V_pfi_buffer_cnt, kt->pfrkt_name, e);
521 pfi_instance_add(struct ifnet *ifp, int net, int flags)
524 int got4 = 0, got6 = 0;
528 TAILQ_FOREACH(ia, &ifp->if_addrhead, ifa_link) {
529 if (ia->ifa_addr == NULL)
531 af = ia->ifa_addr->sa_family;
532 if (af != AF_INET && af != AF_INET6)
535 * XXX: For point-to-point interfaces, (ifname:0) and IPv4,
536 * jump over addresses without a proper route to work
537 * around a problem with ppp not fully removing the
538 * address used during IPCP.
540 if ((ifp->if_flags & IFF_POINTOPOINT) &&
541 !(ia->ifa_flags & IFA_ROUTE) &&
542 (flags & PFI_AFLAG_NOALIAS) && (af == AF_INET))
544 if ((flags & PFI_AFLAG_BROADCAST) && af == AF_INET6)
546 if ((flags & PFI_AFLAG_BROADCAST) &&
547 !(ifp->if_flags & IFF_BROADCAST))
549 if ((flags & PFI_AFLAG_PEER) &&
550 !(ifp->if_flags & IFF_POINTOPOINT))
552 if ((flags & PFI_AFLAG_NETWORK) && af == AF_INET6 &&
553 IN6_IS_ADDR_LINKLOCAL(
554 &((struct sockaddr_in6 *)ia->ifa_addr)->sin6_addr))
556 if (flags & PFI_AFLAG_NOALIAS) {
557 if (af == AF_INET && got4)
559 if (af == AF_INET6 && got6)
564 else if (af == AF_INET6)
567 if (net2 == 128 && (flags & PFI_AFLAG_NETWORK)) {
569 net2 = pfi_unmask(&((struct sockaddr_in *)
570 ia->ifa_netmask)->sin_addr);
571 else if (af == AF_INET6)
572 net2 = pfi_unmask(&((struct sockaddr_in6 *)
573 ia->ifa_netmask)->sin6_addr);
575 if (af == AF_INET && net2 > 32)
577 if (flags & PFI_AFLAG_BROADCAST)
578 pfi_address_add(ia->ifa_broadaddr, af, net2);
579 else if (flags & PFI_AFLAG_PEER)
580 pfi_address_add(ia->ifa_dstaddr, af, net2);
582 pfi_address_add(ia->ifa_addr, af, net2);
584 IF_ADDR_RUNLOCK(ifp);
588 pfi_address_add(struct sockaddr *sa, int af, int net)
593 if (V_pfi_buffer_cnt >= V_pfi_buffer_max) {
594 int new_max = V_pfi_buffer_max * 2;
596 if (new_max > PFI_BUFFER_MAX) {
597 printf("%s: address buffer full (%d/%d)\n", __func__,
598 V_pfi_buffer_cnt, PFI_BUFFER_MAX);
601 p = malloc(new_max * sizeof(*V_pfi_buffer), PFI_MTYPE,
604 printf("%s: no memory to grow buffer (%d/%d)\n",
605 __func__, V_pfi_buffer_cnt, PFI_BUFFER_MAX);
608 memcpy(p, V_pfi_buffer, V_pfi_buffer_max * sizeof(*V_pfi_buffer));
609 /* no need to zero buffer */
610 free(V_pfi_buffer, PFI_MTYPE);
612 V_pfi_buffer_max = new_max;
614 if (af == AF_INET && net > 32)
616 p = V_pfi_buffer + V_pfi_buffer_cnt++;
617 bzero(p, sizeof(*p));
621 p->pfra_ip4addr = ((struct sockaddr_in *)sa)->sin_addr;
622 else if (af == AF_INET6) {
623 p->pfra_ip6addr = ((struct sockaddr_in6 *)sa)->sin6_addr;
624 if (IN6_IS_SCOPE_EMBED(&p->pfra_ip6addr))
625 p->pfra_ip6addr.s6_addr16[1] = 0;
627 /* mask network address bits */
629 ((caddr_t)p)[p->pfra_net/8] &= ~(0xFF >> (p->pfra_net%8));
630 for (i = (p->pfra_net+7)/8; i < sizeof(p->pfra_u); i++)
635 pfi_dynaddr_remove(struct pfi_dynaddr *dyn)
638 KASSERT(dyn->pfid_kif != NULL, ("%s: null pfid_kif", __func__));
639 KASSERT(dyn->pfid_kt != NULL, ("%s: null pfid_kt", __func__));
641 TAILQ_REMOVE(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
642 pfi_kif_unref(dyn->pfid_kif);
643 pfr_detach_table(dyn->pfid_kt);
644 free(dyn, PFI_MTYPE);
648 pfi_dynaddr_copyout(struct pf_addr_wrap *aw)
651 KASSERT(aw->type == PF_ADDR_DYNIFTL,
652 ("%s: type %u", __func__, aw->type));
654 if (aw->p.dyn == NULL || aw->p.dyn->pfid_kif == NULL)
656 aw->p.dyncnt = aw->p.dyn->pfid_acnt4 + aw->p.dyn->pfid_acnt6;
660 pfi_if_compare(struct pfi_kif *p, struct pfi_kif *q)
662 return (strncmp(p->pfik_name, q->pfik_name, IFNAMSIZ));
666 pfi_update_status(const char *name, struct pf_status *pfs)
669 struct pfi_kif_cmp key;
670 struct ifg_member p_member, *ifgm;
671 TAILQ_HEAD(, ifg_member) ifg_members;
674 strlcpy(key.pfik_name, name, sizeof(key.pfik_name));
675 p = RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&key);
679 if (p->pfik_group != NULL) {
680 bcopy(&p->pfik_group->ifg_members, &ifg_members,
681 sizeof(ifg_members));
683 /* build a temporary list for p only */
684 bzero(&p_member, sizeof(p_member));
685 p_member.ifgm_ifp = p->pfik_ifp;
686 TAILQ_INIT(&ifg_members);
687 TAILQ_INSERT_TAIL(&ifg_members, &p_member, ifgm_next);
690 bzero(pfs->pcounters, sizeof(pfs->pcounters));
691 bzero(pfs->bcounters, sizeof(pfs->bcounters));
693 TAILQ_FOREACH(ifgm, &ifg_members, ifgm_next) {
694 if (ifgm->ifgm_ifp == NULL || ifgm->ifgm_ifp->if_pf_kif == NULL)
696 p = (struct pfi_kif *)ifgm->ifgm_ifp->if_pf_kif;
698 /* just clear statistics */
700 bzero(p->pfik_packets, sizeof(p->pfik_packets));
701 bzero(p->pfik_bytes, sizeof(p->pfik_bytes));
702 p->pfik_tzero = time_second;
705 for (i = 0; i < 2; i++)
706 for (j = 0; j < 2; j++)
707 for (k = 0; k < 2; k++) {
708 pfs->pcounters[i][j][k] +=
709 p->pfik_packets[i][j][k];
710 pfs->bcounters[i][j] +=
711 p->pfik_bytes[i][j][k];
717 pfi_get_ifaces(const char *name, struct pfi_kif *buf, int *size)
719 struct pfi_kif *p, *nextp;
722 for (p = RB_MIN(pfi_ifhead, &V_pfi_ifs); p; p = nextp) {
723 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
724 if (pfi_skip_if(name, p))
729 p->pfik_tzero = time_second;
730 bcopy(p, buf++, sizeof(*buf));
731 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
737 pfi_skip_if(const char *filter, struct pfi_kif *p)
741 if (filter == NULL || !*filter)
743 if (!strcmp(p->pfik_name, filter))
744 return (0); /* exact match */
746 if (n < 1 || n >= IFNAMSIZ)
747 return (1); /* sanity check */
748 if (filter[n-1] >= '0' && filter[n-1] <= '9')
749 return (1); /* only do exact match in that case */
750 if (strncmp(p->pfik_name, filter, n))
751 return (1); /* prefix doesn't match */
752 return (p->pfik_name[n] < '0' || p->pfik_name[n] > '9');
756 pfi_set_flags(const char *name, int flags)
760 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
761 if (pfi_skip_if(name, p))
763 p->pfik_flags |= flags;
769 pfi_clear_flags(const char *name, int flags)
773 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
774 if (pfi_skip_if(name, p))
776 p->pfik_flags &= ~flags;
781 /* from pf_print_state.c */
783 pfi_unmask(void *addr)
785 struct pf_addr *m = addr;
786 int i = 31, j = 0, b = 0;
789 while (j < 4 && m->addr32[j] == 0xffffffff) {
794 tmp = ntohl(m->addr32[j]);
795 for (i = 31; tmp & (1 << i); --i)
802 pfi_attach_ifnet_event(void *arg __unused, struct ifnet *ifp)
805 if (V_pf_vnet_active == 0) {
806 /* Avoid teardown race in the least expensive way. */
809 pfi_attach_ifnet(ifp);
812 pf_altq_ifnet_event(ifp, 0);
818 pfi_detach_ifnet_event(void *arg __unused, struct ifnet *ifp)
820 struct pfi_kif *kif = (struct pfi_kif *)ifp->if_pf_kif;
825 if (V_pf_vnet_active == 0) {
826 /* Avoid teardown race in the least expensive way. */
833 kif->pfik_ifp = NULL;
834 ifp->if_pf_kif = NULL;
836 pf_altq_ifnet_event(ifp, 1);
842 pfi_attach_group_event(void *arg __unused, struct ifg_group *ifg)
845 if (V_pf_vnet_active == 0) {
846 /* Avoid teardown race in the least expensive way. */
849 pfi_attach_ifgroup(ifg);
853 pfi_change_group_event(void *arg __unused, char *gname)
857 if (V_pf_vnet_active == 0) {
858 /* Avoid teardown race in the least expensive way. */
862 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
865 kif = pfi_kif_attach(kif, gname);
871 pfi_detach_group_event(void *arg __unused, struct ifg_group *ifg)
873 struct pfi_kif *kif = (struct pfi_kif *)ifg->ifg_pf_kif;
878 if (V_pf_vnet_active == 0) {
879 /* Avoid teardown race in the least expensive way. */
885 kif->pfik_group = NULL;
886 ifg->ifg_pf_kif = NULL;
891 pfi_ifaddr_event(void *arg __unused, struct ifnet *ifp)
893 if (ifp->if_pf_kif == NULL)
896 if (V_pf_vnet_active == 0) {
897 /* Avoid teardown race in the least expensive way. */
901 if (ifp && ifp->if_pf_kif) {
903 pfi_kif_update(ifp->if_pf_kif);