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 *, struct pfi_kif *);
80 static void pfi_attach_ifgroup(struct ifg_group *, struct pfi_kif *);
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 pfi_list kifs = LIST_HEAD_INITIALIZER();
118 struct epoch_tracker et;
120 struct ifg_group *ifg;
124 V_pfi_buffer_max = 64;
125 V_pfi_buffer = malloc(V_pfi_buffer_max * sizeof(*V_pfi_buffer),
126 PFI_MTYPE, M_WAITOK);
128 nkifs = 1; /* one for V_pfi_all */
130 CK_STAILQ_FOREACH(ifg, &V_ifg_head, ifg_next)
132 CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link)
135 for (int n = 0; n < nkifs; n++) {
136 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
137 LIST_INSERT_HEAD(&kifs, kif, pfik_list);
142 kif = LIST_FIRST(&kifs);
143 LIST_REMOVE(kif, pfik_list);
144 V_pfi_all = pfi_kif_attach(kif, IFG_ALL);
145 CK_STAILQ_FOREACH(ifg, &V_ifg_head, ifg_next) {
146 kif = LIST_FIRST(&kifs);
147 LIST_REMOVE(kif, pfik_list);
148 pfi_attach_ifgroup(ifg, kif);
150 CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) {
151 kif = LIST_FIRST(&kifs);
152 LIST_REMOVE(kif, pfik_list);
153 pfi_attach_ifnet(ifp, kif);
159 MPASS(LIST_EMPTY(&kifs));
166 pfi_attach_cookie = EVENTHANDLER_REGISTER(ifnet_arrival_event,
167 pfi_attach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
168 pfi_detach_cookie = EVENTHANDLER_REGISTER(ifnet_departure_event,
169 pfi_detach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
170 pfi_attach_group_cookie = EVENTHANDLER_REGISTER(group_attach_event,
171 pfi_attach_group_event, NULL, EVENTHANDLER_PRI_ANY);
172 pfi_change_group_cookie = EVENTHANDLER_REGISTER(group_change_event,
173 pfi_change_group_event, NULL, EVENTHANDLER_PRI_ANY);
174 pfi_detach_group_cookie = EVENTHANDLER_REGISTER(group_detach_event,
175 pfi_detach_group_event, NULL, EVENTHANDLER_PRI_ANY);
176 pfi_ifaddr_event_cookie = EVENTHANDLER_REGISTER(ifaddr_event,
177 pfi_ifaddr_event, NULL, EVENTHANDLER_PRI_ANY);
181 pfi_cleanup_vnet(void)
188 while ((kif = RB_MIN(pfi_ifhead, &V_pfi_ifs))) {
189 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, kif);
191 kif->pfik_group->ifg_pf_kif = NULL;
193 if_rele(kif->pfik_ifp);
194 kif->pfik_ifp->if_pf_kif = NULL;
196 free(kif, PFI_MTYPE);
199 mtx_lock(&pfi_unlnkdkifs_mtx);
200 while ((kif = LIST_FIRST(&V_pfi_unlinked_kifs))) {
201 LIST_REMOVE(kif, pfik_list);
202 free(kif, PFI_MTYPE);
204 mtx_unlock(&pfi_unlnkdkifs_mtx);
206 free(V_pfi_buffer, PFI_MTYPE);
213 EVENTHANDLER_DEREGISTER(ifnet_arrival_event, pfi_attach_cookie);
214 EVENTHANDLER_DEREGISTER(ifnet_departure_event, pfi_detach_cookie);
215 EVENTHANDLER_DEREGISTER(group_attach_event, pfi_attach_group_cookie);
216 EVENTHANDLER_DEREGISTER(group_change_event, pfi_change_group_cookie);
217 EVENTHANDLER_DEREGISTER(group_detach_event, pfi_detach_group_cookie);
218 EVENTHANDLER_DEREGISTER(ifaddr_event, pfi_ifaddr_event_cookie);
222 pfi_kif_find(const char *kif_name)
224 struct pfi_kif_cmp s;
228 bzero(&s, sizeof(s));
229 strlcpy(s.pfik_name, kif_name, sizeof(s.pfik_name));
231 return (RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&s));
235 pfi_kif_attach(struct pfi_kif *kif, const char *kif_name)
237 struct pfi_kif *kif1;
240 KASSERT(kif != NULL, ("%s: null kif", __func__));
242 kif1 = pfi_kif_find(kif_name);
244 free(kif, PFI_MTYPE);
248 bzero(kif, sizeof(*kif));
249 strlcpy(kif->pfik_name, kif_name, sizeof(kif->pfik_name));
251 * It seems that the value of time_second is in unintialzied state
252 * when pf sets interface statistics clear time in boot phase if pf
253 * was statically linked to kernel. Instead of setting the bogus
254 * time value have pfi_get_ifaces handle this case. In
255 * pfi_get_ifaces it uses time_second if it sees the time is 0.
257 kif->pfik_tzero = time_second > 1 ? time_second : 0;
258 TAILQ_INIT(&kif->pfik_dynaddrs);
260 RB_INSERT(pfi_ifhead, &V_pfi_ifs, kif);
266 pfi_kif_ref(struct pfi_kif *kif)
270 kif->pfik_rulerefs++;
274 pfi_kif_unref(struct pfi_kif *kif)
278 KASSERT(kif->pfik_rulerefs > 0, ("%s: %p has zero refs", __func__, kif));
280 kif->pfik_rulerefs--;
282 if (kif->pfik_rulerefs > 0)
285 /* kif referencing an existing ifnet or group should exist. */
286 if (kif->pfik_ifp != NULL || kif->pfik_group != NULL || kif == V_pfi_all)
289 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, kif);
291 kif->pfik_flags |= PFI_IFLAG_REFS;
293 mtx_lock(&pfi_unlnkdkifs_mtx);
294 LIST_INSERT_HEAD(&V_pfi_unlinked_kifs, kif, pfik_list);
295 mtx_unlock(&pfi_unlnkdkifs_mtx);
301 struct pfi_kif *kif, *kif1;
304 * Do naive mark-and-sweep garbage collecting of old kifs.
305 * Reference flag is raised by pf_purge_expired_states().
307 mtx_lock(&pfi_unlnkdkifs_mtx);
308 LIST_FOREACH_SAFE(kif, &V_pfi_unlinked_kifs, pfik_list, kif1) {
309 if (!(kif->pfik_flags & PFI_IFLAG_REFS)) {
310 LIST_REMOVE(kif, pfik_list);
311 free(kif, PFI_MTYPE);
313 kif->pfik_flags &= ~PFI_IFLAG_REFS;
315 mtx_unlock(&pfi_unlnkdkifs_mtx);
319 pfi_kif_match(struct pfi_kif *rule_kif, struct pfi_kif *packet_kif)
325 if (rule_kif == NULL || rule_kif == packet_kif)
328 if (rule_kif->pfik_group != NULL) {
329 CK_STAILQ_FOREACH(p, &packet_kif->pfik_ifp->if_groups, ifgl_next)
330 if (p->ifgl_group == rule_kif->pfik_group)
338 pfi_attach_ifnet(struct ifnet *ifp, struct pfi_kif *kif)
344 kif = pfi_kif_attach(kif, ifp->if_xname);
347 ifp->if_pf_kif = kif;
352 pfi_attach_ifgroup(struct ifg_group *ifg, struct pfi_kif *kif)
358 kif = pfi_kif_attach(kif, ifg->ifg_group);
359 kif->pfik_group = ifg;
360 ifg->ifg_pf_kif = kif;
364 pfi_match_addr(struct pfi_dynaddr *dyn, struct pf_addr *a, sa_family_t af)
369 switch (dyn->pfid_acnt4) {
373 return (PF_MATCHA(0, &dyn->pfid_addr4,
374 &dyn->pfid_mask4, a, AF_INET));
376 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET));
382 switch (dyn->pfid_acnt6) {
386 return (PF_MATCHA(0, &dyn->pfid_addr6,
387 &dyn->pfid_mask6, a, AF_INET6));
389 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET6));
399 pfi_dynaddr_setup(struct pf_addr_wrap *aw, sa_family_t af)
401 struct epoch_tracker et;
402 struct pfi_dynaddr *dyn;
403 char tblname[PF_TABLE_NAME_SIZE];
404 struct pf_ruleset *ruleset = NULL;
409 KASSERT(aw->type == PF_ADDR_DYNIFTL, ("%s: type %u",
410 __func__, aw->type));
411 KASSERT(aw->p.dyn == NULL, ("%s: dyn is %p", __func__, aw->p.dyn));
413 if ((dyn = malloc(sizeof(*dyn), PFI_MTYPE, M_NOWAIT | M_ZERO)) == NULL)
416 if ((kif = malloc(sizeof(*kif), PFI_MTYPE, M_NOWAIT)) == NULL) {
417 free(dyn, PFI_MTYPE);
421 if (!strcmp(aw->v.ifname, "self"))
422 dyn->pfid_kif = pfi_kif_attach(kif, IFG_ALL);
424 dyn->pfid_kif = pfi_kif_attach(kif, aw->v.ifname);
425 pfi_kif_ref(dyn->pfid_kif);
427 dyn->pfid_net = pfi_unmask(&aw->v.a.mask);
428 if (af == AF_INET && dyn->pfid_net == 32)
430 strlcpy(tblname, aw->v.ifname, sizeof(tblname));
431 if (aw->iflags & PFI_AFLAG_NETWORK)
432 strlcat(tblname, ":network", sizeof(tblname));
433 if (aw->iflags & PFI_AFLAG_BROADCAST)
434 strlcat(tblname, ":broadcast", sizeof(tblname));
435 if (aw->iflags & PFI_AFLAG_PEER)
436 strlcat(tblname, ":peer", sizeof(tblname));
437 if (aw->iflags & PFI_AFLAG_NOALIAS)
438 strlcat(tblname, ":0", sizeof(tblname));
439 if (dyn->pfid_net != 128)
440 snprintf(tblname + strlen(tblname),
441 sizeof(tblname) - strlen(tblname), "/%d", dyn->pfid_net);
442 if ((ruleset = pf_find_or_create_ruleset(PF_RESERVED_ANCHOR)) == NULL) {
447 if ((dyn->pfid_kt = pfr_attach_table(ruleset, tblname)) == NULL) {
452 dyn->pfid_kt->pfrkt_flags |= PFR_TFLAG_ACTIVE;
453 dyn->pfid_iflags = aw->iflags;
456 TAILQ_INSERT_TAIL(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
459 pfi_kif_update(dyn->pfid_kif);
465 if (dyn->pfid_kt != NULL)
466 pfr_detach_table(dyn->pfid_kt);
468 pf_remove_if_empty_ruleset(ruleset);
469 if (dyn->pfid_kif != NULL)
470 pfi_kif_unref(dyn->pfid_kif);
471 free(dyn, PFI_MTYPE);
477 pfi_kif_update(struct pfi_kif *kif)
479 struct ifg_list *ifgl;
480 struct pfi_dynaddr *p;
485 /* update all dynaddr */
486 TAILQ_FOREACH(p, &kif->pfik_dynaddrs, entry)
487 pfi_dynaddr_update(p);
489 /* again for all groups kif is member of */
490 if (kif->pfik_ifp != NULL) {
491 CK_STAILQ_FOREACH(ifgl, &kif->pfik_ifp->if_groups, ifgl_next)
492 pfi_kif_update((struct pfi_kif *)
493 ifgl->ifgl_group->ifg_pf_kif);
498 pfi_dynaddr_update(struct pfi_dynaddr *dyn)
501 struct pfr_ktable *kt;
504 KASSERT(dyn && dyn->pfid_kif && dyn->pfid_kt,
505 ("%s: bad argument", __func__));
510 if (kt->pfrkt_larg != V_pfi_update) {
511 /* this table needs to be brought up-to-date */
512 pfi_table_update(kt, kif, dyn->pfid_net, dyn->pfid_iflags);
513 kt->pfrkt_larg = V_pfi_update;
515 pfr_dynaddr_update(kt, dyn);
519 pfi_table_update(struct pfr_ktable *kt, struct pfi_kif *kif, int net, int flags)
522 struct ifg_member *ifgm;
526 V_pfi_buffer_cnt = 0;
528 if (kif->pfik_ifp != NULL)
529 pfi_instance_add(kif->pfik_ifp, net, flags);
530 else if (kif->pfik_group != NULL) {
531 CK_STAILQ_FOREACH(ifgm, &kif->pfik_group->ifg_members, ifgm_next)
532 pfi_instance_add(ifgm->ifgm_ifp, net, flags);
535 if ((e = pfr_set_addrs(&kt->pfrkt_t, V_pfi_buffer, V_pfi_buffer_cnt, &size2,
536 NULL, NULL, NULL, 0, PFR_TFLAG_ALLMASK)))
537 printf("%s: cannot set %d new addresses into table %s: %d\n",
538 __func__, V_pfi_buffer_cnt, kt->pfrkt_name, e);
542 pfi_instance_add(struct ifnet *ifp, int net, int flags)
545 int got4 = 0, got6 = 0;
550 CK_STAILQ_FOREACH(ia, &ifp->if_addrhead, ifa_link) {
551 if (ia->ifa_addr == NULL)
553 af = ia->ifa_addr->sa_family;
554 if (af != AF_INET && af != AF_INET6)
557 * XXX: For point-to-point interfaces, (ifname:0) and IPv4,
558 * jump over addresses without a proper route to work
559 * around a problem with ppp not fully removing the
560 * address used during IPCP.
562 if ((ifp->if_flags & IFF_POINTOPOINT) &&
563 !(ia->ifa_flags & IFA_ROUTE) &&
564 (flags & PFI_AFLAG_NOALIAS) && (af == AF_INET))
566 if ((flags & PFI_AFLAG_BROADCAST) && af == AF_INET6)
568 if ((flags & PFI_AFLAG_BROADCAST) &&
569 !(ifp->if_flags & IFF_BROADCAST))
571 if ((flags & PFI_AFLAG_PEER) &&
572 !(ifp->if_flags & IFF_POINTOPOINT))
574 if ((flags & (PFI_AFLAG_NETWORK | PFI_AFLAG_NOALIAS)) &&
576 IN6_IS_ADDR_LINKLOCAL(
577 &((struct sockaddr_in6 *)ia->ifa_addr)->sin6_addr))
579 if (flags & PFI_AFLAG_NOALIAS) {
580 if (af == AF_INET && got4)
582 if (af == AF_INET6 && got6)
587 else if (af == AF_INET6)
590 if (net2 == 128 && (flags & PFI_AFLAG_NETWORK)) {
592 net2 = pfi_unmask(&((struct sockaddr_in *)
593 ia->ifa_netmask)->sin_addr);
594 else if (af == AF_INET6)
595 net2 = pfi_unmask(&((struct sockaddr_in6 *)
596 ia->ifa_netmask)->sin6_addr);
598 if (af == AF_INET && net2 > 32)
600 if (flags & PFI_AFLAG_BROADCAST)
601 pfi_address_add(ia->ifa_broadaddr, af, net2);
602 else if (flags & PFI_AFLAG_PEER)
603 pfi_address_add(ia->ifa_dstaddr, af, net2);
605 pfi_address_add(ia->ifa_addr, af, net2);
610 pfi_address_add(struct sockaddr *sa, int af, int net)
615 if (V_pfi_buffer_cnt >= V_pfi_buffer_max) {
616 int new_max = V_pfi_buffer_max * 2;
618 if (new_max > PFI_BUFFER_MAX) {
619 printf("%s: address buffer full (%d/%d)\n", __func__,
620 V_pfi_buffer_cnt, PFI_BUFFER_MAX);
623 p = malloc(new_max * sizeof(*V_pfi_buffer), PFI_MTYPE,
626 printf("%s: no memory to grow buffer (%d/%d)\n",
627 __func__, V_pfi_buffer_cnt, PFI_BUFFER_MAX);
630 memcpy(p, V_pfi_buffer, V_pfi_buffer_max * sizeof(*V_pfi_buffer));
631 /* no need to zero buffer */
632 free(V_pfi_buffer, PFI_MTYPE);
634 V_pfi_buffer_max = new_max;
636 if (af == AF_INET && net > 32)
638 p = V_pfi_buffer + V_pfi_buffer_cnt++;
639 bzero(p, sizeof(*p));
643 p->pfra_ip4addr = ((struct sockaddr_in *)sa)->sin_addr;
644 else if (af == AF_INET6) {
645 p->pfra_ip6addr = ((struct sockaddr_in6 *)sa)->sin6_addr;
646 if (IN6_IS_SCOPE_EMBED(&p->pfra_ip6addr))
647 p->pfra_ip6addr.s6_addr16[1] = 0;
649 /* mask network address bits */
651 ((caddr_t)p)[p->pfra_net/8] &= ~(0xFF >> (p->pfra_net%8));
652 for (i = (p->pfra_net+7)/8; i < sizeof(p->pfra_u); i++)
657 pfi_dynaddr_remove(struct pfi_dynaddr *dyn)
660 KASSERT(dyn->pfid_kif != NULL, ("%s: null pfid_kif", __func__));
661 KASSERT(dyn->pfid_kt != NULL, ("%s: null pfid_kt", __func__));
663 TAILQ_REMOVE(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
664 pfi_kif_unref(dyn->pfid_kif);
665 pfr_detach_table(dyn->pfid_kt);
666 free(dyn, PFI_MTYPE);
670 pfi_dynaddr_copyout(struct pf_addr_wrap *aw)
673 KASSERT(aw->type == PF_ADDR_DYNIFTL,
674 ("%s: type %u", __func__, aw->type));
676 if (aw->p.dyn == NULL || aw->p.dyn->pfid_kif == NULL)
678 aw->p.dyncnt = aw->p.dyn->pfid_acnt4 + aw->p.dyn->pfid_acnt6;
682 pfi_if_compare(struct pfi_kif *p, struct pfi_kif *q)
684 return (strncmp(p->pfik_name, q->pfik_name, IFNAMSIZ));
688 pfi_update_status(const char *name, struct pf_status *pfs)
691 struct pfi_kif_cmp key;
692 struct ifg_member p_member, *ifgm;
693 CK_STAILQ_HEAD(, ifg_member) ifg_members;
696 strlcpy(key.pfik_name, name, sizeof(key.pfik_name));
697 p = RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&key);
701 if (p->pfik_group != NULL) {
702 bcopy(&p->pfik_group->ifg_members, &ifg_members,
703 sizeof(ifg_members));
705 /* build a temporary list for p only */
706 bzero(&p_member, sizeof(p_member));
707 p_member.ifgm_ifp = p->pfik_ifp;
708 CK_STAILQ_INIT(&ifg_members);
709 CK_STAILQ_INSERT_TAIL(&ifg_members, &p_member, ifgm_next);
712 bzero(pfs->pcounters, sizeof(pfs->pcounters));
713 bzero(pfs->bcounters, sizeof(pfs->bcounters));
715 CK_STAILQ_FOREACH(ifgm, &ifg_members, ifgm_next) {
716 if (ifgm->ifgm_ifp == NULL || ifgm->ifgm_ifp->if_pf_kif == NULL)
718 p = (struct pfi_kif *)ifgm->ifgm_ifp->if_pf_kif;
720 /* just clear statistics */
722 bzero(p->pfik_packets, sizeof(p->pfik_packets));
723 bzero(p->pfik_bytes, sizeof(p->pfik_bytes));
724 p->pfik_tzero = time_second;
727 for (i = 0; i < 2; i++)
728 for (j = 0; j < 2; j++)
729 for (k = 0; k < 2; k++) {
730 pfs->pcounters[i][j][k] +=
731 p->pfik_packets[i][j][k];
732 pfs->bcounters[i][j] +=
733 p->pfik_bytes[i][j][k];
739 pfi_get_ifaces(const char *name, struct pfi_kif *buf, int *size)
741 struct epoch_tracker et;
742 struct pfi_kif *p, *nextp;
746 for (p = RB_MIN(pfi_ifhead, &V_pfi_ifs); p; p = nextp) {
747 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
748 if (pfi_skip_if(name, p))
753 p->pfik_tzero = time_second;
754 bcopy(p, buf++, sizeof(*buf));
755 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
762 pfi_skip_if(const char *filter, struct pfi_kif *p)
769 if (filter == NULL || !*filter)
771 if (!strcmp(p->pfik_name, filter))
772 return (0); /* exact match */
774 if (n < 1 || n >= IFNAMSIZ)
775 return (1); /* sanity check */
776 if (filter[n-1] >= '0' && filter[n-1] <= '9')
777 return (1); /* group names may not end in a digit */
778 if (p->pfik_ifp == NULL)
780 CK_STAILQ_FOREACH(i, &p->pfik_ifp->if_groups, ifgl_next)
781 if (!strncmp(i->ifgl_group->ifg_group, filter, IFNAMSIZ))
782 return (0); /* iface is in group "filter" */
787 pfi_set_flags(const char *name, int flags)
789 struct epoch_tracker et;
793 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
794 if (pfi_skip_if(name, p))
796 p->pfik_flags |= flags;
803 pfi_clear_flags(const char *name, int flags)
805 struct epoch_tracker et;
809 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
810 if (pfi_skip_if(name, p))
812 p->pfik_flags &= ~flags;
818 /* from pf_print_state.c */
820 pfi_unmask(void *addr)
822 struct pf_addr *m = addr;
823 int i = 31, j = 0, b = 0;
826 while (j < 4 && m->addr32[j] == 0xffffffff) {
831 tmp = ntohl(m->addr32[j]);
832 for (i = 31; tmp & (1 << i); --i)
839 pfi_attach_ifnet_event(void *arg __unused, struct ifnet *ifp)
841 struct epoch_tracker et;
844 if (V_pf_vnet_active == 0) {
845 /* Avoid teardown race in the least expensive way. */
848 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
851 pfi_attach_ifnet(ifp, kif);
853 pf_altq_ifnet_event(ifp, 0);
860 pfi_detach_ifnet_event(void *arg __unused, struct ifnet *ifp)
862 struct epoch_tracker et;
863 struct pfi_kif *kif = (struct pfi_kif *)ifp->if_pf_kif;
865 if (pfsync_detach_ifnet_ptr)
866 pfsync_detach_ifnet_ptr(ifp);
871 if (V_pf_vnet_active == 0) {
872 /* Avoid teardown race in the least expensive way. */
882 if_rele(kif->pfik_ifp);
884 kif->pfik_ifp = NULL;
885 ifp->if_pf_kif = NULL;
887 pf_altq_ifnet_event(ifp, 1);
894 pfi_attach_group_event(void *arg __unused, struct ifg_group *ifg)
896 struct epoch_tracker et;
899 if (V_pf_vnet_active == 0) {
900 /* Avoid teardown race in the least expensive way. */
903 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
906 pfi_attach_ifgroup(ifg, kif);
912 pfi_change_group_event(void *arg __unused, char *gname)
914 struct epoch_tracker et;
917 if (V_pf_vnet_active == 0) {
918 /* Avoid teardown race in the least expensive way. */
922 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
926 kif = pfi_kif_attach(kif, gname);
933 pfi_detach_group_event(void *arg __unused, struct ifg_group *ifg)
935 struct pfi_kif *kif = (struct pfi_kif *)ifg->ifg_pf_kif;
940 if (V_pf_vnet_active == 0) {
941 /* Avoid teardown race in the least expensive way. */
947 kif->pfik_group = NULL;
948 ifg->ifg_pf_kif = NULL;
953 pfi_ifaddr_event(void *arg __unused, struct ifnet *ifp)
956 KASSERT(ifp, ("ifp == NULL"));
958 if (ifp->if_pf_kif == NULL)
961 if (V_pf_vnet_active == 0) {
962 /* Avoid teardown race in the least expensive way. */
966 if (ifp->if_pf_kif) {
967 struct epoch_tracker et;
971 pfi_kif_update(ifp->if_pf_kif);