2 * Copyright (c) 2001 Daniel Hartmeier
3 * Copyright (c) 2003 Cedric Berger
4 * Copyright (c) 2005 Henning Brauer <henning@openbsd.org>
5 * Copyright (c) 2005 Ryan McBride <mcbride@openbsd.org>
6 * Copyright (c) 2012 Gleb Smirnoff <glebius@FreeBSD.org>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * - Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * - Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer in the documentation and/or other materials provided
18 * with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
33 * $OpenBSD: pf_if.c,v 1.54 2008/06/14 16:55:28 mk Exp $
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
40 #include "opt_inet6.h"
42 #include <sys/param.h>
43 #include <sys/kernel.h>
44 #include <sys/eventhandler.h>
47 #include <sys/rwlock.h>
48 #include <sys/socket.h>
51 #include <net/if_var.h>
53 #include <net/pfvar.h>
54 #include <net/route.h>
56 VNET_DEFINE(struct pfi_kif *, pfi_all);
57 static VNET_DEFINE(long, pfi_update);
58 #define V_pfi_update VNET(pfi_update)
59 #define PFI_BUFFER_MAX 0x10000
61 static VNET_DEFINE(struct pfr_addr *, pfi_buffer);
62 static VNET_DEFINE(int, pfi_buffer_cnt);
63 static VNET_DEFINE(int, pfi_buffer_max);
64 #define V_pfi_buffer VNET(pfi_buffer)
65 #define V_pfi_buffer_cnt VNET(pfi_buffer_cnt)
66 #define V_pfi_buffer_max VNET(pfi_buffer_max)
68 eventhandler_tag pfi_attach_cookie;
69 eventhandler_tag pfi_detach_cookie;
70 eventhandler_tag pfi_attach_group_cookie;
71 eventhandler_tag pfi_change_group_cookie;
72 eventhandler_tag pfi_detach_group_cookie;
73 eventhandler_tag pfi_ifaddr_event_cookie;
75 static void pfi_attach_ifnet(struct ifnet *);
76 static void pfi_attach_ifgroup(struct ifg_group *);
78 static void pfi_kif_update(struct pfi_kif *);
79 static void pfi_dynaddr_update(struct pfi_dynaddr *dyn);
80 static void pfi_table_update(struct pfr_ktable *, struct pfi_kif *, int,
82 static void pfi_instance_add(struct ifnet *, int, int);
83 static void pfi_address_add(struct sockaddr *, int, int);
84 static int pfi_if_compare(struct pfi_kif *, struct pfi_kif *);
85 static int pfi_skip_if(const char *, struct pfi_kif *);
86 static int pfi_unmask(void *);
87 static void pfi_attach_ifnet_event(void * __unused, struct ifnet *);
88 static void pfi_detach_ifnet_event(void * __unused, struct ifnet *);
89 static void pfi_attach_group_event(void *, struct ifg_group *);
90 static void pfi_change_group_event(void *, char *);
91 static void pfi_detach_group_event(void *, struct ifg_group *);
92 static void pfi_ifaddr_event(void * __unused, struct ifnet *);
94 RB_HEAD(pfi_ifhead, pfi_kif);
95 static RB_PROTOTYPE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare);
96 static RB_GENERATE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare);
97 static VNET_DEFINE(struct pfi_ifhead, pfi_ifs);
98 #define V_pfi_ifs VNET(pfi_ifs)
100 #define PFI_BUFFER_MAX 0x10000
101 MALLOC_DEFINE(PFI_MTYPE, "pf_ifnet", "pf(4) interface database");
103 LIST_HEAD(pfi_list, pfi_kif);
104 static VNET_DEFINE(struct pfi_list, pfi_unlinked_kifs);
105 #define V_pfi_unlinked_kifs VNET(pfi_unlinked_kifs)
106 static struct mtx pfi_unlnkdkifs_mtx;
107 MTX_SYSINIT(pfi_unlnkdkifs_mtx, &pfi_unlnkdkifs_mtx, "pf unlinked interfaces",
113 struct ifg_group *ifg;
117 V_pfi_buffer_max = 64;
118 V_pfi_buffer = malloc(V_pfi_buffer_max * sizeof(*V_pfi_buffer),
119 PFI_MTYPE, M_WAITOK);
121 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
123 V_pfi_all = pfi_kif_attach(kif, IFG_ALL);
127 TAILQ_FOREACH(ifg, &V_ifg_head, ifg_next)
128 pfi_attach_ifgroup(ifg);
129 TAILQ_FOREACH(ifp, &V_ifnet, if_link)
130 pfi_attach_ifnet(ifp);
133 pfi_attach_cookie = EVENTHANDLER_REGISTER(ifnet_arrival_event,
134 pfi_attach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
135 pfi_detach_cookie = EVENTHANDLER_REGISTER(ifnet_departure_event,
136 pfi_detach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
137 pfi_attach_group_cookie = EVENTHANDLER_REGISTER(group_attach_event,
138 pfi_attach_group_event, curvnet, EVENTHANDLER_PRI_ANY);
139 pfi_change_group_cookie = EVENTHANDLER_REGISTER(group_change_event,
140 pfi_change_group_event, curvnet, EVENTHANDLER_PRI_ANY);
141 pfi_detach_group_cookie = EVENTHANDLER_REGISTER(group_detach_event,
142 pfi_detach_group_event, curvnet, EVENTHANDLER_PRI_ANY);
143 pfi_ifaddr_event_cookie = EVENTHANDLER_REGISTER(ifaddr_event,
144 pfi_ifaddr_event, NULL, EVENTHANDLER_PRI_ANY);
152 EVENTHANDLER_DEREGISTER(ifnet_arrival_event, pfi_attach_cookie);
153 EVENTHANDLER_DEREGISTER(ifnet_departure_event, pfi_detach_cookie);
154 EVENTHANDLER_DEREGISTER(group_attach_event, pfi_attach_group_cookie);
155 EVENTHANDLER_DEREGISTER(group_change_event, pfi_change_group_cookie);
156 EVENTHANDLER_DEREGISTER(group_detach_event, pfi_detach_group_cookie);
157 EVENTHANDLER_DEREGISTER(ifaddr_event, pfi_ifaddr_event_cookie);
160 while ((p = RB_MIN(pfi_ifhead, &V_pfi_ifs))) {
161 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, p);
165 while ((p = LIST_FIRST(&V_pfi_unlinked_kifs))) {
166 LIST_REMOVE(p, pfik_list);
170 free(V_pfi_buffer, PFI_MTYPE);
174 pfi_kif_find(const char *kif_name)
176 struct pfi_kif_cmp s;
180 bzero(&s, sizeof(s));
181 strlcpy(s.pfik_name, kif_name, sizeof(s.pfik_name));
183 return (RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&s));
187 pfi_kif_attach(struct pfi_kif *kif, const char *kif_name)
189 struct pfi_kif *kif1;
192 KASSERT(kif != NULL, ("%s: null kif", __func__));
194 kif1 = pfi_kif_find(kif_name);
196 free(kif, PFI_MTYPE);
200 bzero(kif, sizeof(*kif));
201 strlcpy(kif->pfik_name, kif_name, sizeof(kif->pfik_name));
203 * It seems that the value of time_second is in unintialzied state
204 * when pf sets interface statistics clear time in boot phase if pf
205 * was statically linked to kernel. Instead of setting the bogus
206 * time value have pfi_get_ifaces handle this case. In
207 * pfi_get_ifaces it uses time_second if it sees the time is 0.
209 kif->pfik_tzero = time_second > 1 ? time_second : 0;
210 TAILQ_INIT(&kif->pfik_dynaddrs);
212 RB_INSERT(pfi_ifhead, &V_pfi_ifs, kif);
218 pfi_kif_ref(struct pfi_kif *kif)
222 kif->pfik_rulerefs++;
226 pfi_kif_unref(struct pfi_kif *kif)
230 KASSERT(kif->pfik_rulerefs > 0, ("%s: %p has zero refs", __func__, kif));
232 kif->pfik_rulerefs--;
234 if (kif->pfik_rulerefs > 0)
237 /* kif referencing an existing ifnet or group should exist. */
238 if (kif->pfik_ifp != NULL || kif->pfik_group != NULL || kif == V_pfi_all)
241 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, kif);
243 kif->pfik_flags |= PFI_IFLAG_REFS;
245 mtx_lock(&pfi_unlnkdkifs_mtx);
246 LIST_INSERT_HEAD(&V_pfi_unlinked_kifs, kif, pfik_list);
247 mtx_unlock(&pfi_unlnkdkifs_mtx);
253 struct pfi_kif *kif, *kif1;
256 * Do naive mark-and-sweep garbage collecting of old kifs.
257 * Reference flag is raised by pf_purge_expired_states().
259 mtx_lock(&pfi_unlnkdkifs_mtx);
260 LIST_FOREACH_SAFE(kif, &V_pfi_unlinked_kifs, pfik_list, kif1) {
261 if (!(kif->pfik_flags & PFI_IFLAG_REFS)) {
262 LIST_REMOVE(kif, pfik_list);
263 free(kif, PFI_MTYPE);
265 kif->pfik_flags &= ~PFI_IFLAG_REFS;
267 mtx_unlock(&pfi_unlnkdkifs_mtx);
271 pfi_kif_match(struct pfi_kif *rule_kif, struct pfi_kif *packet_kif)
275 if (rule_kif == NULL || rule_kif == packet_kif)
278 if (rule_kif->pfik_group != NULL)
279 /* XXXGL: locking? */
280 TAILQ_FOREACH(p, &packet_kif->pfik_ifp->if_groups, ifgl_next)
281 if (p->ifgl_group == rule_kif->pfik_group)
288 pfi_attach_ifnet(struct ifnet *ifp)
292 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
296 kif = pfi_kif_attach(kif, ifp->if_xname);
299 ifp->if_pf_kif = kif;
306 pfi_attach_ifgroup(struct ifg_group *ifg)
310 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
314 kif = pfi_kif_attach(kif, ifg->ifg_group);
316 kif->pfik_group = ifg;
317 ifg->ifg_pf_kif = kif;
322 pfi_match_addr(struct pfi_dynaddr *dyn, struct pf_addr *a, sa_family_t af)
327 switch (dyn->pfid_acnt4) {
331 return (PF_MATCHA(0, &dyn->pfid_addr4,
332 &dyn->pfid_mask4, a, AF_INET));
334 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET));
340 switch (dyn->pfid_acnt6) {
344 return (PF_MATCHA(0, &dyn->pfid_addr6,
345 &dyn->pfid_mask6, a, AF_INET6));
347 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET6));
357 pfi_dynaddr_setup(struct pf_addr_wrap *aw, sa_family_t af)
359 struct pfi_dynaddr *dyn;
360 char tblname[PF_TABLE_NAME_SIZE];
361 struct pf_ruleset *ruleset = NULL;
366 KASSERT(aw->type == PF_ADDR_DYNIFTL, ("%s: type %u",
367 __func__, aw->type));
368 KASSERT(aw->p.dyn == NULL, ("%s: dyn is %p", __func__, aw->p.dyn));
370 if ((dyn = malloc(sizeof(*dyn), PFI_MTYPE, M_NOWAIT | M_ZERO)) == NULL)
373 if ((kif = malloc(sizeof(*kif), PFI_MTYPE, M_NOWAIT)) == NULL) {
374 free(dyn, PFI_MTYPE);
378 if (!strcmp(aw->v.ifname, "self"))
379 dyn->pfid_kif = pfi_kif_attach(kif, IFG_ALL);
381 dyn->pfid_kif = pfi_kif_attach(kif, aw->v.ifname);
382 pfi_kif_ref(dyn->pfid_kif);
384 dyn->pfid_net = pfi_unmask(&aw->v.a.mask);
385 if (af == AF_INET && dyn->pfid_net == 32)
387 strlcpy(tblname, aw->v.ifname, sizeof(tblname));
388 if (aw->iflags & PFI_AFLAG_NETWORK)
389 strlcat(tblname, ":network", sizeof(tblname));
390 if (aw->iflags & PFI_AFLAG_BROADCAST)
391 strlcat(tblname, ":broadcast", sizeof(tblname));
392 if (aw->iflags & PFI_AFLAG_PEER)
393 strlcat(tblname, ":peer", sizeof(tblname));
394 if (aw->iflags & PFI_AFLAG_NOALIAS)
395 strlcat(tblname, ":0", sizeof(tblname));
396 if (dyn->pfid_net != 128)
397 snprintf(tblname + strlen(tblname),
398 sizeof(tblname) - strlen(tblname), "/%d", dyn->pfid_net);
399 if ((ruleset = pf_find_or_create_ruleset(PF_RESERVED_ANCHOR)) == NULL) {
404 if ((dyn->pfid_kt = pfr_attach_table(ruleset, tblname)) == NULL) {
409 dyn->pfid_kt->pfrkt_flags |= PFR_TFLAG_ACTIVE;
410 dyn->pfid_iflags = aw->iflags;
413 TAILQ_INSERT_TAIL(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
415 pfi_kif_update(dyn->pfid_kif);
420 if (dyn->pfid_kt != NULL)
421 pfr_detach_table(dyn->pfid_kt);
423 pf_remove_if_empty_ruleset(ruleset);
424 if (dyn->pfid_kif != NULL)
425 pfi_kif_unref(dyn->pfid_kif);
426 free(dyn, PFI_MTYPE);
432 pfi_kif_update(struct pfi_kif *kif)
434 struct ifg_list *ifgl;
435 struct pfi_dynaddr *p;
439 /* update all dynaddr */
440 TAILQ_FOREACH(p, &kif->pfik_dynaddrs, entry)
441 pfi_dynaddr_update(p);
443 /* again for all groups kif is member of */
444 if (kif->pfik_ifp != NULL) {
445 IF_ADDR_RLOCK(kif->pfik_ifp);
446 TAILQ_FOREACH(ifgl, &kif->pfik_ifp->if_groups, ifgl_next)
447 pfi_kif_update((struct pfi_kif *)
448 ifgl->ifgl_group->ifg_pf_kif);
449 IF_ADDR_RUNLOCK(kif->pfik_ifp);
454 pfi_dynaddr_update(struct pfi_dynaddr *dyn)
457 struct pfr_ktable *kt;
460 KASSERT(dyn && dyn->pfid_kif && dyn->pfid_kt,
461 ("%s: bad argument", __func__));
466 if (kt->pfrkt_larg != V_pfi_update) {
467 /* this table needs to be brought up-to-date */
468 pfi_table_update(kt, kif, dyn->pfid_net, dyn->pfid_iflags);
469 kt->pfrkt_larg = V_pfi_update;
471 pfr_dynaddr_update(kt, dyn);
475 pfi_table_update(struct pfr_ktable *kt, struct pfi_kif *kif, int net, int flags)
478 struct ifg_member *ifgm;
480 V_pfi_buffer_cnt = 0;
482 if (kif->pfik_ifp != NULL)
483 pfi_instance_add(kif->pfik_ifp, net, flags);
484 else if (kif->pfik_group != NULL) {
485 IFNET_RLOCK_NOSLEEP();
486 TAILQ_FOREACH(ifgm, &kif->pfik_group->ifg_members, ifgm_next)
487 pfi_instance_add(ifgm->ifgm_ifp, net, flags);
488 IFNET_RUNLOCK_NOSLEEP();
491 if ((e = pfr_set_addrs(&kt->pfrkt_t, V_pfi_buffer, V_pfi_buffer_cnt, &size2,
492 NULL, NULL, NULL, 0, PFR_TFLAG_ALLMASK)))
493 printf("%s: cannot set %d new addresses into table %s: %d\n",
494 __func__, V_pfi_buffer_cnt, kt->pfrkt_name, e);
498 pfi_instance_add(struct ifnet *ifp, int net, int flags)
501 int got4 = 0, got6 = 0;
505 TAILQ_FOREACH(ia, &ifp->if_addrhead, ifa_list) {
506 if (ia->ifa_addr == NULL)
508 af = ia->ifa_addr->sa_family;
509 if (af != AF_INET && af != AF_INET6)
512 * XXX: For point-to-point interfaces, (ifname:0) and IPv4,
513 * jump over addresses without a proper route to work
514 * around a problem with ppp not fully removing the
515 * address used during IPCP.
517 if ((ifp->if_flags & IFF_POINTOPOINT) &&
518 !(ia->ifa_flags & IFA_ROUTE) &&
519 (flags & PFI_AFLAG_NOALIAS) && (af == AF_INET))
521 if ((flags & PFI_AFLAG_BROADCAST) && af == AF_INET6)
523 if ((flags & PFI_AFLAG_BROADCAST) &&
524 !(ifp->if_flags & IFF_BROADCAST))
526 if ((flags & PFI_AFLAG_PEER) &&
527 !(ifp->if_flags & IFF_POINTOPOINT))
529 if ((flags & PFI_AFLAG_NETWORK) && af == AF_INET6 &&
530 IN6_IS_ADDR_LINKLOCAL(
531 &((struct sockaddr_in6 *)ia->ifa_addr)->sin6_addr))
533 if (flags & PFI_AFLAG_NOALIAS) {
534 if (af == AF_INET && got4)
536 if (af == AF_INET6 && got6)
541 else if (af == AF_INET6)
544 if (net2 == 128 && (flags & PFI_AFLAG_NETWORK)) {
546 net2 = pfi_unmask(&((struct sockaddr_in *)
547 ia->ifa_netmask)->sin_addr);
548 else if (af == AF_INET6)
549 net2 = pfi_unmask(&((struct sockaddr_in6 *)
550 ia->ifa_netmask)->sin6_addr);
552 if (af == AF_INET && net2 > 32)
554 if (flags & PFI_AFLAG_BROADCAST)
555 pfi_address_add(ia->ifa_broadaddr, af, net2);
556 else if (flags & PFI_AFLAG_PEER)
557 pfi_address_add(ia->ifa_dstaddr, af, net2);
559 pfi_address_add(ia->ifa_addr, af, net2);
561 IF_ADDR_RUNLOCK(ifp);
565 pfi_address_add(struct sockaddr *sa, int af, int net)
570 if (V_pfi_buffer_cnt >= V_pfi_buffer_max) {
571 int new_max = V_pfi_buffer_max * 2;
573 if (new_max > PFI_BUFFER_MAX) {
574 printf("%s: address buffer full (%d/%d)\n", __func__,
575 V_pfi_buffer_cnt, PFI_BUFFER_MAX);
578 p = malloc(new_max * sizeof(*V_pfi_buffer), PFI_MTYPE,
581 printf("%s: no memory to grow buffer (%d/%d)\n",
582 __func__, V_pfi_buffer_cnt, PFI_BUFFER_MAX);
585 memcpy(p, V_pfi_buffer, V_pfi_buffer_max * sizeof(*V_pfi_buffer));
586 /* no need to zero buffer */
587 free(V_pfi_buffer, PFI_MTYPE);
589 V_pfi_buffer_max = new_max;
591 if (af == AF_INET && net > 32)
593 p = V_pfi_buffer + V_pfi_buffer_cnt++;
594 bzero(p, sizeof(*p));
598 p->pfra_ip4addr = ((struct sockaddr_in *)sa)->sin_addr;
599 else if (af == AF_INET6) {
600 p->pfra_ip6addr = ((struct sockaddr_in6 *)sa)->sin6_addr;
601 if (IN6_IS_SCOPE_EMBED(&p->pfra_ip6addr))
602 p->pfra_ip6addr.s6_addr16[1] = 0;
604 /* mask network address bits */
606 ((caddr_t)p)[p->pfra_net/8] &= ~(0xFF >> (p->pfra_net%8));
607 for (i = (p->pfra_net+7)/8; i < sizeof(p->pfra_u); i++)
612 pfi_dynaddr_remove(struct pfi_dynaddr *dyn)
615 KASSERT(dyn->pfid_kif != NULL, ("%s: null pfid_kif", __func__));
616 KASSERT(dyn->pfid_kt != NULL, ("%s: null pfid_kt", __func__));
618 TAILQ_REMOVE(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
619 pfi_kif_unref(dyn->pfid_kif);
620 pfr_detach_table(dyn->pfid_kt);
621 free(dyn, PFI_MTYPE);
625 pfi_dynaddr_copyout(struct pf_addr_wrap *aw)
628 KASSERT(aw->type == PF_ADDR_DYNIFTL,
629 ("%s: type %u", __func__, aw->type));
631 if (aw->p.dyn == NULL || aw->p.dyn->pfid_kif == NULL)
633 aw->p.dyncnt = aw->p.dyn->pfid_acnt4 + aw->p.dyn->pfid_acnt6;
637 pfi_if_compare(struct pfi_kif *p, struct pfi_kif *q)
639 return (strncmp(p->pfik_name, q->pfik_name, IFNAMSIZ));
643 pfi_update_status(const char *name, struct pf_status *pfs)
646 struct pfi_kif_cmp key;
647 struct ifg_member p_member, *ifgm;
648 TAILQ_HEAD(, ifg_member) ifg_members;
651 strlcpy(key.pfik_name, name, sizeof(key.pfik_name));
652 p = RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&key);
656 if (p->pfik_group != NULL) {
657 bcopy(&p->pfik_group->ifg_members, &ifg_members,
658 sizeof(ifg_members));
660 /* build a temporary list for p only */
661 bzero(&p_member, sizeof(p_member));
662 p_member.ifgm_ifp = p->pfik_ifp;
663 TAILQ_INIT(&ifg_members);
664 TAILQ_INSERT_TAIL(&ifg_members, &p_member, ifgm_next);
667 bzero(pfs->pcounters, sizeof(pfs->pcounters));
668 bzero(pfs->bcounters, sizeof(pfs->bcounters));
670 TAILQ_FOREACH(ifgm, &ifg_members, ifgm_next) {
671 if (ifgm->ifgm_ifp == NULL)
673 p = (struct pfi_kif *)ifgm->ifgm_ifp->if_pf_kif;
675 /* just clear statistics */
677 bzero(p->pfik_packets, sizeof(p->pfik_packets));
678 bzero(p->pfik_bytes, sizeof(p->pfik_bytes));
679 p->pfik_tzero = time_second;
682 for (i = 0; i < 2; i++)
683 for (j = 0; j < 2; j++)
684 for (k = 0; k < 2; k++) {
685 pfs->pcounters[i][j][k] +=
686 p->pfik_packets[i][j][k];
687 pfs->bcounters[i][j] +=
688 p->pfik_bytes[i][j][k];
694 pfi_get_ifaces(const char *name, struct pfi_kif *buf, int *size)
696 struct pfi_kif *p, *nextp;
699 for (p = RB_MIN(pfi_ifhead, &V_pfi_ifs); p; p = nextp) {
700 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
701 if (pfi_skip_if(name, p))
706 p->pfik_tzero = time_second;
707 bcopy(p, buf++, sizeof(*buf));
708 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
714 pfi_skip_if(const char *filter, struct pfi_kif *p)
718 if (filter == NULL || !*filter)
720 if (!strcmp(p->pfik_name, filter))
721 return (0); /* exact match */
723 if (n < 1 || n >= IFNAMSIZ)
724 return (1); /* sanity check */
725 if (filter[n-1] >= '0' && filter[n-1] <= '9')
726 return (1); /* only do exact match in that case */
727 if (strncmp(p->pfik_name, filter, n))
728 return (1); /* prefix doesn't match */
729 return (p->pfik_name[n] < '0' || p->pfik_name[n] > '9');
733 pfi_set_flags(const char *name, int flags)
737 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
738 if (pfi_skip_if(name, p))
740 p->pfik_flags |= flags;
746 pfi_clear_flags(const char *name, int flags)
750 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
751 if (pfi_skip_if(name, p))
753 p->pfik_flags &= ~flags;
758 /* from pf_print_state.c */
760 pfi_unmask(void *addr)
762 struct pf_addr *m = addr;
763 int i = 31, j = 0, b = 0;
766 while (j < 4 && m->addr32[j] == 0xffffffff) {
771 tmp = ntohl(m->addr32[j]);
772 for (i = 31; tmp & (1 << i); --i)
779 pfi_attach_ifnet_event(void *arg __unused, struct ifnet *ifp)
782 CURVNET_SET(ifp->if_vnet);
783 pfi_attach_ifnet(ifp);
786 pf_altq_ifnet_event(ifp, 0);
793 pfi_detach_ifnet_event(void *arg __unused, struct ifnet *ifp)
795 struct pfi_kif *kif = (struct pfi_kif *)ifp->if_pf_kif;
797 CURVNET_SET(ifp->if_vnet);
802 kif->pfik_ifp = NULL;
803 ifp->if_pf_kif = NULL;
805 pf_altq_ifnet_event(ifp, 1);
812 pfi_attach_group_event(void *arg , struct ifg_group *ifg)
815 CURVNET_SET((struct vnet *)arg);
816 pfi_attach_ifgroup(ifg);
821 pfi_change_group_event(void *arg, char *gname)
825 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
827 CURVNET_SET((struct vnet *)arg);
830 kif = pfi_kif_attach(kif, gname);
837 pfi_detach_group_event(void *arg, struct ifg_group *ifg)
839 struct pfi_kif *kif = (struct pfi_kif *)ifg->ifg_pf_kif;
841 CURVNET_SET((struct vnet *)arg);
845 kif->pfik_group = NULL;
846 ifg->ifg_pf_kif = NULL;
852 pfi_ifaddr_event(void *arg __unused, struct ifnet *ifp)
855 CURVNET_SET(ifp->if_vnet);
857 if (ifp && ifp->if_pf_kif) {
859 pfi_kif_update(ifp->if_pf_kif);