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>
46 #include <sys/rwlock.h>
47 #include <sys/socket.h>
50 #include <net/if_var.h>
52 #include <net/pfvar.h>
53 #include <net/route.h>
55 VNET_DEFINE(struct pfi_kif *, pfi_all);
56 static VNET_DEFINE(long, pfi_update);
57 #define V_pfi_update VNET(pfi_update)
58 #define PFI_BUFFER_MAX 0x10000
60 static VNET_DEFINE(struct pfr_addr *, pfi_buffer);
61 static VNET_DEFINE(int, pfi_buffer_cnt);
62 static VNET_DEFINE(int, pfi_buffer_max);
63 #define V_pfi_buffer VNET(pfi_buffer)
64 #define V_pfi_buffer_cnt VNET(pfi_buffer_cnt)
65 #define V_pfi_buffer_max VNET(pfi_buffer_max)
67 eventhandler_tag pfi_attach_cookie;
68 eventhandler_tag pfi_detach_cookie;
69 eventhandler_tag pfi_attach_group_cookie;
70 eventhandler_tag pfi_change_group_cookie;
71 eventhandler_tag pfi_detach_group_cookie;
72 eventhandler_tag pfi_ifaddr_event_cookie;
74 static void pfi_attach_ifnet(struct ifnet *);
75 static void pfi_attach_ifgroup(struct ifg_group *);
77 static void pfi_kif_update(struct pfi_kif *);
78 static void pfi_dynaddr_update(struct pfi_dynaddr *dyn);
79 static void pfi_table_update(struct pfr_ktable *, struct pfi_kif *, int,
81 static void pfi_instance_add(struct ifnet *, int, int);
82 static void pfi_address_add(struct sockaddr *, int, int);
83 static int pfi_if_compare(struct pfi_kif *, struct pfi_kif *);
84 static int pfi_skip_if(const char *, struct pfi_kif *);
85 static int pfi_unmask(void *);
86 static void pfi_attach_ifnet_event(void * __unused, struct ifnet *);
87 static void pfi_detach_ifnet_event(void * __unused, struct ifnet *);
88 static void pfi_attach_group_event(void *, struct ifg_group *);
89 static void pfi_change_group_event(void *, char *);
90 static void pfi_detach_group_event(void *, struct ifg_group *);
91 static void pfi_ifaddr_event(void * __unused, struct ifnet *);
93 RB_HEAD(pfi_ifhead, pfi_kif);
94 static RB_PROTOTYPE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare);
95 static RB_GENERATE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare);
96 static VNET_DEFINE(struct pfi_ifhead, pfi_ifs);
97 #define V_pfi_ifs VNET(pfi_ifs)
99 #define PFI_BUFFER_MAX 0x10000
100 MALLOC_DEFINE(PFI_MTYPE, "pf_ifnet", "pf(4) interface database");
102 LIST_HEAD(pfi_list, pfi_kif);
103 static VNET_DEFINE(struct pfi_list, pfi_unlinked_kifs);
104 #define V_pfi_unlinked_kifs VNET(pfi_unlinked_kifs)
105 static struct mtx pfi_unlnkdkifs_mtx;
110 struct ifg_group *ifg;
114 V_pfi_buffer_max = 64;
115 V_pfi_buffer = malloc(V_pfi_buffer_max * sizeof(*V_pfi_buffer),
116 PFI_MTYPE, M_WAITOK);
118 mtx_init(&pfi_unlnkdkifs_mtx, "pf unlinked interfaces", NULL, MTX_DEF);
120 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
122 V_pfi_all = pfi_kif_attach(kif, IFG_ALL);
126 TAILQ_FOREACH(ifg, &V_ifg_head, ifg_next)
127 pfi_attach_ifgroup(ifg);
128 TAILQ_FOREACH(ifp, &V_ifnet, if_link)
129 pfi_attach_ifnet(ifp);
132 pfi_attach_cookie = EVENTHANDLER_REGISTER(ifnet_arrival_event,
133 pfi_attach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
134 pfi_detach_cookie = EVENTHANDLER_REGISTER(ifnet_departure_event,
135 pfi_detach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY);
136 pfi_attach_group_cookie = EVENTHANDLER_REGISTER(group_attach_event,
137 pfi_attach_group_event, curvnet, EVENTHANDLER_PRI_ANY);
138 pfi_change_group_cookie = EVENTHANDLER_REGISTER(group_change_event,
139 pfi_change_group_event, curvnet, EVENTHANDLER_PRI_ANY);
140 pfi_detach_group_cookie = EVENTHANDLER_REGISTER(group_detach_event,
141 pfi_detach_group_event, curvnet, EVENTHANDLER_PRI_ANY);
142 pfi_ifaddr_event_cookie = EVENTHANDLER_REGISTER(ifaddr_event,
143 pfi_ifaddr_event, NULL, EVENTHANDLER_PRI_ANY);
151 EVENTHANDLER_DEREGISTER(ifnet_arrival_event, pfi_attach_cookie);
152 EVENTHANDLER_DEREGISTER(ifnet_departure_event, pfi_detach_cookie);
153 EVENTHANDLER_DEREGISTER(group_attach_event, pfi_attach_group_cookie);
154 EVENTHANDLER_DEREGISTER(group_change_event, pfi_change_group_cookie);
155 EVENTHANDLER_DEREGISTER(group_detach_event, pfi_detach_group_cookie);
156 EVENTHANDLER_DEREGISTER(ifaddr_event, pfi_ifaddr_event_cookie);
159 while ((p = RB_MIN(pfi_ifhead, &V_pfi_ifs))) {
160 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, p);
164 while ((p = LIST_FIRST(&V_pfi_unlinked_kifs))) {
165 LIST_REMOVE(p, pfik_list);
169 mtx_destroy(&pfi_unlnkdkifs_mtx);
171 free(V_pfi_buffer, PFI_MTYPE);
175 pfi_kif_find(const char *kif_name)
177 struct pfi_kif_cmp s;
181 bzero(&s, sizeof(s));
182 strlcpy(s.pfik_name, kif_name, sizeof(s.pfik_name));
184 return (RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&s));
188 pfi_kif_attach(struct pfi_kif *kif, const char *kif_name)
190 struct pfi_kif *kif1;
193 KASSERT(kif != NULL, ("%s: null kif", __func__));
195 kif1 = pfi_kif_find(kif_name);
197 free(kif, PFI_MTYPE);
201 bzero(kif, sizeof(*kif));
202 strlcpy(kif->pfik_name, kif_name, sizeof(kif->pfik_name));
204 * It seems that the value of time_second is in unintialzied state
205 * when pf sets interface statistics clear time in boot phase if pf
206 * was statically linked to kernel. Instead of setting the bogus
207 * time value have pfi_get_ifaces handle this case. In
208 * pfi_get_ifaces it uses time_second if it sees the time is 0.
210 kif->pfik_tzero = time_second > 1 ? time_second : 0;
211 TAILQ_INIT(&kif->pfik_dynaddrs);
213 RB_INSERT(pfi_ifhead, &V_pfi_ifs, kif);
219 pfi_kif_ref(struct pfi_kif *kif)
223 kif->pfik_rulerefs++;
227 pfi_kif_unref(struct pfi_kif *kif)
231 KASSERT(kif->pfik_rulerefs > 0, ("%s: %p has zero refs", __func__, kif));
233 kif->pfik_rulerefs--;
235 if (kif->pfik_rulerefs > 0)
238 /* kif referencing an existing ifnet or group should exist. */
239 if (kif->pfik_ifp != NULL || kif->pfik_group != NULL || kif == V_pfi_all)
242 RB_REMOVE(pfi_ifhead, &V_pfi_ifs, kif);
244 kif->pfik_flags |= PFI_IFLAG_REFS;
246 mtx_lock(&pfi_unlnkdkifs_mtx);
247 LIST_INSERT_HEAD(&V_pfi_unlinked_kifs, kif, pfik_list);
248 mtx_unlock(&pfi_unlnkdkifs_mtx);
254 struct pfi_kif *kif, *kif1;
257 * Do naive mark-and-sweep garbage collecting of old kifs.
258 * Reference flag is raised by pf_purge_expired_states().
260 mtx_lock(&pfi_unlnkdkifs_mtx);
261 LIST_FOREACH_SAFE(kif, &V_pfi_unlinked_kifs, pfik_list, kif1) {
262 if (!(kif->pfik_flags & PFI_IFLAG_REFS)) {
263 LIST_REMOVE(kif, pfik_list);
264 free(kif, PFI_MTYPE);
266 kif->pfik_flags &= ~PFI_IFLAG_REFS;
268 mtx_unlock(&pfi_unlnkdkifs_mtx);
272 pfi_kif_match(struct pfi_kif *rule_kif, struct pfi_kif *packet_kif)
276 if (rule_kif == NULL || rule_kif == packet_kif)
279 if (rule_kif->pfik_group != NULL)
280 /* XXXGL: locking? */
281 TAILQ_FOREACH(p, &packet_kif->pfik_ifp->if_groups, ifgl_next)
282 if (p->ifgl_group == rule_kif->pfik_group)
289 pfi_attach_ifnet(struct ifnet *ifp)
293 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
297 kif = pfi_kif_attach(kif, ifp->if_xname);
300 ifp->if_pf_kif = kif;
307 pfi_attach_ifgroup(struct ifg_group *ifg)
311 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
315 kif = pfi_kif_attach(kif, ifg->ifg_group);
317 kif->pfik_group = ifg;
318 ifg->ifg_pf_kif = kif;
323 pfi_match_addr(struct pfi_dynaddr *dyn, struct pf_addr *a, sa_family_t af)
328 switch (dyn->pfid_acnt4) {
332 return (PF_MATCHA(0, &dyn->pfid_addr4,
333 &dyn->pfid_mask4, a, AF_INET));
335 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET));
341 switch (dyn->pfid_acnt6) {
345 return (PF_MATCHA(0, &dyn->pfid_addr6,
346 &dyn->pfid_mask6, a, AF_INET6));
348 return (pfr_match_addr(dyn->pfid_kt, a, AF_INET6));
358 pfi_dynaddr_setup(struct pf_addr_wrap *aw, sa_family_t af)
360 struct pfi_dynaddr *dyn;
361 char tblname[PF_TABLE_NAME_SIZE];
362 struct pf_ruleset *ruleset = NULL;
367 KASSERT(aw->type == PF_ADDR_DYNIFTL, ("%s: type %u",
368 __func__, aw->type));
369 KASSERT(aw->p.dyn == NULL, ("%s: dyn is %p", __func__, aw->p.dyn));
371 if ((dyn = malloc(sizeof(*dyn), PFI_MTYPE, M_NOWAIT | M_ZERO)) == NULL)
374 if ((kif = malloc(sizeof(*kif), PFI_MTYPE, M_NOWAIT)) == NULL) {
375 free(dyn, PFI_MTYPE);
379 if (!strcmp(aw->v.ifname, "self"))
380 dyn->pfid_kif = pfi_kif_attach(kif, IFG_ALL);
382 dyn->pfid_kif = pfi_kif_attach(kif, aw->v.ifname);
383 pfi_kif_ref(dyn->pfid_kif);
385 dyn->pfid_net = pfi_unmask(&aw->v.a.mask);
386 if (af == AF_INET && dyn->pfid_net == 32)
388 strlcpy(tblname, aw->v.ifname, sizeof(tblname));
389 if (aw->iflags & PFI_AFLAG_NETWORK)
390 strlcat(tblname, ":network", sizeof(tblname));
391 if (aw->iflags & PFI_AFLAG_BROADCAST)
392 strlcat(tblname, ":broadcast", sizeof(tblname));
393 if (aw->iflags & PFI_AFLAG_PEER)
394 strlcat(tblname, ":peer", sizeof(tblname));
395 if (aw->iflags & PFI_AFLAG_NOALIAS)
396 strlcat(tblname, ":0", sizeof(tblname));
397 if (dyn->pfid_net != 128)
398 snprintf(tblname + strlen(tblname),
399 sizeof(tblname) - strlen(tblname), "/%d", dyn->pfid_net);
400 if ((ruleset = pf_find_or_create_ruleset(PF_RESERVED_ANCHOR)) == NULL) {
405 if ((dyn->pfid_kt = pfr_attach_table(ruleset, tblname)) == NULL) {
410 dyn->pfid_kt->pfrkt_flags |= PFR_TFLAG_ACTIVE;
411 dyn->pfid_iflags = aw->iflags;
414 TAILQ_INSERT_TAIL(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
416 pfi_kif_update(dyn->pfid_kif);
421 if (dyn->pfid_kt != NULL)
422 pfr_detach_table(dyn->pfid_kt);
424 pf_remove_if_empty_ruleset(ruleset);
425 if (dyn->pfid_kif != NULL)
426 pfi_kif_unref(dyn->pfid_kif);
427 free(dyn, PFI_MTYPE);
433 pfi_kif_update(struct pfi_kif *kif)
435 struct ifg_list *ifgl;
436 struct pfi_dynaddr *p;
440 /* update all dynaddr */
441 TAILQ_FOREACH(p, &kif->pfik_dynaddrs, entry)
442 pfi_dynaddr_update(p);
444 /* again for all groups kif is member of */
445 if (kif->pfik_ifp != NULL) {
446 IF_ADDR_RLOCK(kif->pfik_ifp);
447 TAILQ_FOREACH(ifgl, &kif->pfik_ifp->if_groups, ifgl_next)
448 pfi_kif_update((struct pfi_kif *)
449 ifgl->ifgl_group->ifg_pf_kif);
450 IF_ADDR_RUNLOCK(kif->pfik_ifp);
455 pfi_dynaddr_update(struct pfi_dynaddr *dyn)
458 struct pfr_ktable *kt;
461 KASSERT(dyn && dyn->pfid_kif && dyn->pfid_kt,
462 ("%s: bad argument", __func__));
467 if (kt->pfrkt_larg != V_pfi_update) {
468 /* this table needs to be brought up-to-date */
469 pfi_table_update(kt, kif, dyn->pfid_net, dyn->pfid_iflags);
470 kt->pfrkt_larg = V_pfi_update;
472 pfr_dynaddr_update(kt, dyn);
476 pfi_table_update(struct pfr_ktable *kt, struct pfi_kif *kif, int net, int flags)
479 struct ifg_member *ifgm;
481 V_pfi_buffer_cnt = 0;
483 if (kif->pfik_ifp != NULL)
484 pfi_instance_add(kif->pfik_ifp, net, flags);
485 else if (kif->pfik_group != NULL) {
486 IFNET_RLOCK_NOSLEEP();
487 TAILQ_FOREACH(ifgm, &kif->pfik_group->ifg_members, ifgm_next)
488 pfi_instance_add(ifgm->ifgm_ifp, net, flags);
489 IFNET_RUNLOCK_NOSLEEP();
492 if ((e = pfr_set_addrs(&kt->pfrkt_t, V_pfi_buffer, V_pfi_buffer_cnt, &size2,
493 NULL, NULL, NULL, 0, PFR_TFLAG_ALLMASK)))
494 printf("%s: cannot set %d new addresses into table %s: %d\n",
495 __func__, V_pfi_buffer_cnt, kt->pfrkt_name, e);
499 pfi_instance_add(struct ifnet *ifp, int net, int flags)
502 int got4 = 0, got6 = 0;
506 TAILQ_FOREACH(ia, &ifp->if_addrhead, ifa_list) {
507 if (ia->ifa_addr == NULL)
509 af = ia->ifa_addr->sa_family;
510 if (af != AF_INET && af != AF_INET6)
513 * XXX: For point-to-point interfaces, (ifname:0) and IPv4,
514 * jump over addresses without a proper route to work
515 * around a problem with ppp not fully removing the
516 * address used during IPCP.
518 if ((ifp->if_flags & IFF_POINTOPOINT) &&
519 !(ia->ifa_flags & IFA_ROUTE) &&
520 (flags & PFI_AFLAG_NOALIAS) && (af == AF_INET))
522 if ((flags & PFI_AFLAG_BROADCAST) && af == AF_INET6)
524 if ((flags & PFI_AFLAG_BROADCAST) &&
525 !(ifp->if_flags & IFF_BROADCAST))
527 if ((flags & PFI_AFLAG_PEER) &&
528 !(ifp->if_flags & IFF_POINTOPOINT))
530 if ((flags & PFI_AFLAG_NETWORK) && af == AF_INET6 &&
531 IN6_IS_ADDR_LINKLOCAL(
532 &((struct sockaddr_in6 *)ia->ifa_addr)->sin6_addr))
534 if (flags & PFI_AFLAG_NOALIAS) {
535 if (af == AF_INET && got4)
537 if (af == AF_INET6 && got6)
542 else if (af == AF_INET6)
545 if (net2 == 128 && (flags & PFI_AFLAG_NETWORK)) {
547 net2 = pfi_unmask(&((struct sockaddr_in *)
548 ia->ifa_netmask)->sin_addr);
549 else if (af == AF_INET6)
550 net2 = pfi_unmask(&((struct sockaddr_in6 *)
551 ia->ifa_netmask)->sin6_addr);
553 if (af == AF_INET && net2 > 32)
555 if (flags & PFI_AFLAG_BROADCAST)
556 pfi_address_add(ia->ifa_broadaddr, af, net2);
557 else if (flags & PFI_AFLAG_PEER)
558 pfi_address_add(ia->ifa_dstaddr, af, net2);
560 pfi_address_add(ia->ifa_addr, af, net2);
562 IF_ADDR_RUNLOCK(ifp);
566 pfi_address_add(struct sockaddr *sa, int af, int net)
571 if (V_pfi_buffer_cnt >= V_pfi_buffer_max) {
572 int new_max = V_pfi_buffer_max * 2;
574 if (new_max > PFI_BUFFER_MAX) {
575 printf("%s: address buffer full (%d/%d)\n", __func__,
576 V_pfi_buffer_cnt, PFI_BUFFER_MAX);
579 p = malloc(new_max * sizeof(*V_pfi_buffer), PFI_MTYPE,
582 printf("%s: no memory to grow buffer (%d/%d)\n",
583 __func__, V_pfi_buffer_cnt, PFI_BUFFER_MAX);
586 memcpy(V_pfi_buffer, p, V_pfi_buffer_cnt * sizeof(*V_pfi_buffer));
587 /* no need to zero buffer */
588 free(V_pfi_buffer, PFI_MTYPE);
590 V_pfi_buffer_max = new_max;
592 if (af == AF_INET && net > 32)
594 p = V_pfi_buffer + V_pfi_buffer_cnt++;
595 bzero(p, sizeof(*p));
599 p->pfra_ip4addr = ((struct sockaddr_in *)sa)->sin_addr;
600 else if (af == AF_INET6) {
601 p->pfra_ip6addr = ((struct sockaddr_in6 *)sa)->sin6_addr;
602 if (IN6_IS_SCOPE_EMBED(&p->pfra_ip6addr))
603 p->pfra_ip6addr.s6_addr16[1] = 0;
605 /* mask network address bits */
607 ((caddr_t)p)[p->pfra_net/8] &= ~(0xFF >> (p->pfra_net%8));
608 for (i = (p->pfra_net+7)/8; i < sizeof(p->pfra_u); i++)
613 pfi_dynaddr_remove(struct pfi_dynaddr *dyn)
616 KASSERT(dyn->pfid_kif != NULL, ("%s: null pfid_kif", __func__));
617 KASSERT(dyn->pfid_kt != NULL, ("%s: null pfid_kt", __func__));
619 TAILQ_REMOVE(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry);
620 pfi_kif_unref(dyn->pfid_kif);
621 pfr_detach_table(dyn->pfid_kt);
622 free(dyn, PFI_MTYPE);
626 pfi_dynaddr_copyout(struct pf_addr_wrap *aw)
629 KASSERT(aw->type == PF_ADDR_DYNIFTL,
630 ("%s: type %u", __func__, aw->type));
632 if (aw->p.dyn == NULL || aw->p.dyn->pfid_kif == NULL)
634 aw->p.dyncnt = aw->p.dyn->pfid_acnt4 + aw->p.dyn->pfid_acnt6;
638 pfi_if_compare(struct pfi_kif *p, struct pfi_kif *q)
640 return (strncmp(p->pfik_name, q->pfik_name, IFNAMSIZ));
644 pfi_update_status(const char *name, struct pf_status *pfs)
647 struct pfi_kif_cmp key;
648 struct ifg_member p_member, *ifgm;
649 TAILQ_HEAD(, ifg_member) ifg_members;
652 strlcpy(key.pfik_name, name, sizeof(key.pfik_name));
653 p = RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&key);
657 if (p->pfik_group != NULL) {
658 bcopy(&p->pfik_group->ifg_members, &ifg_members,
659 sizeof(ifg_members));
661 /* build a temporary list for p only */
662 bzero(&p_member, sizeof(p_member));
663 p_member.ifgm_ifp = p->pfik_ifp;
664 TAILQ_INIT(&ifg_members);
665 TAILQ_INSERT_TAIL(&ifg_members, &p_member, ifgm_next);
668 bzero(pfs->pcounters, sizeof(pfs->pcounters));
669 bzero(pfs->bcounters, sizeof(pfs->bcounters));
671 TAILQ_FOREACH(ifgm, &ifg_members, ifgm_next) {
672 if (ifgm->ifgm_ifp == NULL)
674 p = (struct pfi_kif *)ifgm->ifgm_ifp->if_pf_kif;
676 /* just clear statistics */
678 bzero(p->pfik_packets, sizeof(p->pfik_packets));
679 bzero(p->pfik_bytes, sizeof(p->pfik_bytes));
680 p->pfik_tzero = time_second;
683 for (i = 0; i < 2; i++)
684 for (j = 0; j < 2; j++)
685 for (k = 0; k < 2; k++) {
686 pfs->pcounters[i][j][k] +=
687 p->pfik_packets[i][j][k];
688 pfs->bcounters[i][j] +=
689 p->pfik_bytes[i][j][k];
695 pfi_get_ifaces(const char *name, struct pfi_kif *buf, int *size)
697 struct pfi_kif *p, *nextp;
700 for (p = RB_MIN(pfi_ifhead, &V_pfi_ifs); p; p = nextp) {
701 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
702 if (pfi_skip_if(name, p))
707 p->pfik_tzero = time_second;
708 bcopy(p, buf++, sizeof(*buf));
709 nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p);
715 pfi_skip_if(const char *filter, struct pfi_kif *p)
719 if (filter == NULL || !*filter)
721 if (!strcmp(p->pfik_name, filter))
722 return (0); /* exact match */
724 if (n < 1 || n >= IFNAMSIZ)
725 return (1); /* sanity check */
726 if (filter[n-1] >= '0' && filter[n-1] <= '9')
727 return (1); /* only do exact match in that case */
728 if (strncmp(p->pfik_name, filter, n))
729 return (1); /* prefix doesn't match */
730 return (p->pfik_name[n] < '0' || p->pfik_name[n] > '9');
734 pfi_set_flags(const char *name, int flags)
738 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
739 if (pfi_skip_if(name, p))
741 p->pfik_flags |= flags;
747 pfi_clear_flags(const char *name, int flags)
751 RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) {
752 if (pfi_skip_if(name, p))
754 p->pfik_flags &= ~flags;
759 /* from pf_print_state.c */
761 pfi_unmask(void *addr)
763 struct pf_addr *m = addr;
764 int i = 31, j = 0, b = 0;
767 while (j < 4 && m->addr32[j] == 0xffffffff) {
772 tmp = ntohl(m->addr32[j]);
773 for (i = 31; tmp & (1 << i); --i)
780 pfi_attach_ifnet_event(void *arg __unused, struct ifnet *ifp)
783 CURVNET_SET(ifp->if_vnet);
784 pfi_attach_ifnet(ifp);
787 pf_altq_ifnet_event(ifp, 0);
794 pfi_detach_ifnet_event(void *arg __unused, struct ifnet *ifp)
796 struct pfi_kif *kif = (struct pfi_kif *)ifp->if_pf_kif;
798 CURVNET_SET(ifp->if_vnet);
803 kif->pfik_ifp = NULL;
804 ifp->if_pf_kif = NULL;
806 pf_altq_ifnet_event(ifp, 1);
813 pfi_attach_group_event(void *arg , struct ifg_group *ifg)
816 CURVNET_SET((struct vnet *)arg);
817 pfi_attach_ifgroup(ifg);
822 pfi_change_group_event(void *arg, char *gname)
826 kif = malloc(sizeof(*kif), PFI_MTYPE, M_WAITOK);
828 CURVNET_SET((struct vnet *)arg);
831 kif = pfi_kif_attach(kif, gname);
838 pfi_detach_group_event(void *arg, struct ifg_group *ifg)
840 struct pfi_kif *kif = (struct pfi_kif *)ifg->ifg_pf_kif;
842 CURVNET_SET((struct vnet *)arg);
846 kif->pfik_group = NULL;
847 ifg->ifg_pf_kif = NULL;
853 pfi_ifaddr_event(void *arg __unused, struct ifnet *ifp)
856 CURVNET_SET(ifp->if_vnet);
858 if (ifp && ifp->if_pf_kif) {
860 pfi_kif_update(ifp->if_pf_kif);