diff options
Diffstat (limited to 'freebsd/sys/contrib/pf/net/pf_if.c')
| -rw-r--r-- | freebsd/sys/contrib/pf/net/pf_if.c | 1112 |
1 files changed, 0 insertions, 1112 deletions
diff --git a/freebsd/sys/contrib/pf/net/pf_if.c b/freebsd/sys/contrib/pf/net/pf_if.c deleted file mode 100644 index d730cd5e..00000000 --- a/freebsd/sys/contrib/pf/net/pf_if.c +++ /dev/null @@ -1,1112 +0,0 @@ -#include <machine/rtems-bsd-kernel-space.h> - -/* $OpenBSD: pf_if.c,v 1.54 2008/06/14 16:55:28 mk Exp $ */ - -/* - * Copyright 2005 Henning Brauer <henning@openbsd.org> - * Copyright 2005 Ryan McBride <mcbride@openbsd.org> - * Copyright (c) 2001 Daniel Hartmeier - * Copyright (c) 2003 Cedric Berger - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * - Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#if defined(__FreeBSD__) -#include <rtems/bsd/local/opt_inet.h> -#include <rtems/bsd/local/opt_inet6.h> - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); -#endif - -#include <rtems/bsd/sys/param.h> -#include <sys/systm.h> -#ifdef __FreeBSD__ -#include <sys/malloc.h> -#endif -#include <sys/mbuf.h> -#include <sys/filio.h> -#include <sys/socket.h> -#include <sys/socketvar.h> -#include <sys/kernel.h> -#ifndef __FreeBSD__ -#include <sys/device.h> -#endif -#include <sys/time.h> -#ifndef __FreeBSD__ -#include <sys/pool.h> -#endif - -#include <net/if.h> -#include <net/if_types.h> -#ifdef __FreeBSD__ -#include <net/vnet.h> -#endif - -#include <netinet/in.h> -#include <netinet/in_var.h> -#include <netinet/in_systm.h> -#include <netinet/ip.h> -#include <netinet/ip_var.h> - -#include <net/pfvar.h> - -#ifdef INET6 -#include <netinet/ip6.h> -#endif /* INET6 */ - -#ifdef __FreeBSD__ -VNET_DEFINE(struct pfi_kif *, pfi_all); -VNET_DEFINE(uma_zone_t, pfi_addr_pl); -VNET_DEFINE(struct pfi_ifhead, pfi_ifs); -#define V_pfi_ifs VNET(pfi_ifs) -VNET_DEFINE(long, pfi_update); -#define V_pfi_update VNET(pfi_update) -VNET_DEFINE(struct pfr_addr *, pfi_buffer); -#define V_pfi_buffer VNET(pfi_buffer) -VNET_DEFINE(int, pfi_buffer_cnt); -#define V_pfi_buffer_cnt VNET(pfi_buffer_cnt) -VNET_DEFINE(int, pfi_buffer_max); -#define V_pfi_buffer_max VNET(pfi_buffer_max) -#else -struct pfi_kif *pfi_all = NULL; -struct pool pfi_addr_pl; -struct pfi_ifhead pfi_ifs; -long pfi_update = 1; -struct pfr_addr *pfi_buffer; -int pfi_buffer_cnt; -int pfi_buffer_max; -#endif -#ifdef __FreeBSD__ -eventhandler_tag pfi_attach_cookie; -eventhandler_tag pfi_detach_cookie; -eventhandler_tag pfi_attach_group_cookie; -eventhandler_tag pfi_change_group_cookie; -eventhandler_tag pfi_detach_group_cookie; -eventhandler_tag pfi_ifaddr_event_cookie; -#endif - -void pfi_kif_update(struct pfi_kif *); -void pfi_dynaddr_update(struct pfi_dynaddr *dyn); -void pfi_table_update(struct pfr_ktable *, struct pfi_kif *, - int, int); -void pfi_kifaddr_update(void *); -void pfi_instance_add(struct ifnet *, int, int); -void pfi_address_add(struct sockaddr *, int, int); -int pfi_if_compare(struct pfi_kif *, struct pfi_kif *); -int pfi_skip_if(const char *, struct pfi_kif *); -int pfi_unmask(void *); -#ifdef __FreeBSD__ -void pfi_attach_ifnet_event(void * __unused, struct ifnet *); -void pfi_detach_ifnet_event(void * __unused, struct ifnet *); -void pfi_attach_group_event(void *, struct ifg_group *); -void pfi_change_group_event(void *, char *); -void pfi_detach_group_event(void *, struct ifg_group *); -void pfi_ifaddr_event(void * __unused, struct ifnet *); -#endif - -RB_PROTOTYPE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare); -RB_GENERATE(pfi_ifhead, pfi_kif, pfik_tree, pfi_if_compare); - -#define PFI_BUFFER_MAX 0x10000 -#define PFI_MTYPE M_IFADDR - -void -pfi_initialize(void) -{ -#ifdef __FreeBSD__ - if (V_pfi_all != NULL) /* already initialized */ -#else - if (pfi_all != NULL) /* already initialized */ -#endif - return; - -#ifndef __FreeBSD__ - pool_init(&V_pfi_addr_pl, sizeof(struct pfi_dynaddr), 0, 0, 0, - "pfiaddrpl", &pool_allocator_nointr); -#endif -#ifdef __FreeBSD__ - V_pfi_buffer_max = 64; - V_pfi_buffer = malloc(V_pfi_buffer_max * sizeof(*V_pfi_buffer), - PFI_MTYPE, M_WAITOK); - - if ((V_pfi_all = pfi_kif_get(IFG_ALL)) == NULL) -#else - pfi_buffer_max = 64; - pfi_buffer = malloc(pfi_buffer_max * sizeof(*pfi_buffer), - PFI_MTYPE, M_WAITOK); - - if ((pfi_all = pfi_kif_get(IFG_ALL)) == NULL) -#endif - panic("pfi_kif_get for pfi_all failed"); -#ifdef __FreeBSD__ - struct ifg_group *ifg; - struct ifnet *ifp; - - IFNET_RLOCK(); - TAILQ_FOREACH(ifg, &V_ifg_head, ifg_next) - pfi_attach_ifgroup(ifg); - TAILQ_FOREACH(ifp, &V_ifnet, if_link) - pfi_attach_ifnet(ifp); - IFNET_RUNLOCK(); - - pfi_attach_cookie = EVENTHANDLER_REGISTER(ifnet_arrival_event, - pfi_attach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY); - pfi_detach_cookie = EVENTHANDLER_REGISTER(ifnet_departure_event, - pfi_detach_ifnet_event, NULL, EVENTHANDLER_PRI_ANY); - pfi_attach_group_cookie = EVENTHANDLER_REGISTER(group_attach_event, - pfi_attach_group_event, curvnet, EVENTHANDLER_PRI_ANY); - pfi_change_group_cookie = EVENTHANDLER_REGISTER(group_change_event, - pfi_change_group_event, curvnet, EVENTHANDLER_PRI_ANY); - pfi_detach_group_cookie = EVENTHANDLER_REGISTER(group_detach_event, - pfi_detach_group_event, curvnet, EVENTHANDLER_PRI_ANY); - pfi_ifaddr_event_cookie = EVENTHANDLER_REGISTER(ifaddr_event, - pfi_ifaddr_event, NULL, EVENTHANDLER_PRI_ANY); -#endif -} - -#ifdef __FreeBSD__ -void -pfi_cleanup(void) -{ - struct pfi_kif *p; - - PF_UNLOCK(); - EVENTHANDLER_DEREGISTER(ifnet_arrival_event, pfi_attach_cookie); - EVENTHANDLER_DEREGISTER(ifnet_departure_event, pfi_detach_cookie); - EVENTHANDLER_DEREGISTER(group_attach_event, pfi_attach_group_cookie); - EVENTHANDLER_DEREGISTER(group_change_event, pfi_change_group_cookie); - EVENTHANDLER_DEREGISTER(group_detach_event, pfi_detach_group_cookie); - EVENTHANDLER_DEREGISTER(ifaddr_event, pfi_ifaddr_event_cookie); - PF_LOCK(); - - V_pfi_all = NULL; - while ((p = RB_MIN(pfi_ifhead, &V_pfi_ifs))) { - if (p->pfik_rules || p->pfik_states) { - printf("pfi_cleanup: dangling refs for %s\n", - p->pfik_name); - } - - RB_REMOVE(pfi_ifhead, &V_pfi_ifs, p); - free(p, PFI_MTYPE); - } - - free(V_pfi_buffer, PFI_MTYPE); -} -#endif - -struct pfi_kif * -pfi_kif_get(const char *kif_name) -{ - struct pfi_kif *kif; - struct pfi_kif_cmp s; - - bzero(&s, sizeof(s)); - strlcpy(s.pfik_name, kif_name, sizeof(s.pfik_name)); -#ifdef __FreeBSD__ - if ((kif = RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&s)) != NULL) -#else - if ((kif = RB_FIND(pfi_ifhead, &pfi_ifs, (struct pfi_kif *)&s)) != NULL) -#endif - return (kif); - - /* create new one */ -#ifdef __FreeBSD__ - if ((kif = malloc(sizeof(*kif), PFI_MTYPE, M_NOWAIT | M_ZERO)) == NULL) -#else - if ((kif = malloc(sizeof(*kif), PFI_MTYPE, M_DONTWAIT|M_ZERO)) == NULL) -#endif - return (NULL); - - strlcpy(kif->pfik_name, kif_name, sizeof(kif->pfik_name)); -#ifdef __FreeBSD__ - /* - * It seems that the value of time_second is in unintialzied state - * when pf sets interface statistics clear time in boot phase if pf - * was statically linked to kernel. Instead of setting the bogus - * time value have pfi_get_ifaces handle this case. In - * pfi_get_ifaces it uses boottime.tv_sec if it sees the time is 0. - */ - kif->pfik_tzero = time_second > 1 ? time_second : 0; -#else - kif->pfik_tzero = time_second; -#endif - TAILQ_INIT(&kif->pfik_dynaddrs); - -#ifdef __FreeBSD__ - RB_INSERT(pfi_ifhead, &V_pfi_ifs, kif); -#else - RB_INSERT(pfi_ifhead, &pfi_ifs, kif); -#endif - - return (kif); -} - -void -pfi_kif_ref(struct pfi_kif *kif, enum pfi_kif_refs what) -{ - switch (what) { - case PFI_KIF_REF_RULE: - kif->pfik_rules++; - break; - case PFI_KIF_REF_STATE: - kif->pfik_states++; - break; - default: - panic("pfi_kif_ref with unknown type"); - } -} - -void -pfi_kif_unref(struct pfi_kif *kif, enum pfi_kif_refs what) -{ - if (kif == NULL) - return; - - switch (what) { - case PFI_KIF_REF_NONE: - break; - case PFI_KIF_REF_RULE: - if (kif->pfik_rules <= 0) { - printf("pfi_kif_unref: rules refcount <= 0\n"); - return; - } - kif->pfik_rules--; - break; - case PFI_KIF_REF_STATE: - if (kif->pfik_states <= 0) { - printf("pfi_kif_unref: state refcount <= 0\n"); - return; - } - kif->pfik_states--; - break; - default: - panic("pfi_kif_unref with unknown type"); - } - -#ifdef __FreeBSD__ - if (kif->pfik_ifp != NULL || kif->pfik_group != NULL || kif == V_pfi_all) -#else - if (kif->pfik_ifp != NULL || kif->pfik_group != NULL || kif == pfi_all) -#endif - return; - - if (kif->pfik_rules || kif->pfik_states) - return; - -#ifdef __FreeBSD__ - RB_REMOVE(pfi_ifhead, &V_pfi_ifs, kif); -#else - RB_REMOVE(pfi_ifhead, &pfi_ifs, kif); -#endif - free(kif, PFI_MTYPE); -} - -int -pfi_kif_match(struct pfi_kif *rule_kif, struct pfi_kif *packet_kif) -{ - struct ifg_list *p; - - if (rule_kif == NULL || rule_kif == packet_kif) - return (1); - - if (rule_kif->pfik_group != NULL) - TAILQ_FOREACH(p, &packet_kif->pfik_ifp->if_groups, ifgl_next) - if (p->ifgl_group == rule_kif->pfik_group) - return (1); - - return (0); -} - -void -pfi_attach_ifnet(struct ifnet *ifp) -{ - struct pfi_kif *kif; - int s; - - pfi_initialize(); - s = splsoftnet(); -#ifdef __FreeBSD__ - V_pfi_update++; -#else - pfi_update++; -#endif - if ((kif = pfi_kif_get(ifp->if_xname)) == NULL) - panic("pfi_kif_get failed"); - - kif->pfik_ifp = ifp; - ifp->if_pf_kif = (caddr_t)kif; - -#ifndef __FreeBSD__ - if ((kif->pfik_ah_cookie = hook_establish(ifp->if_addrhooks, 1, - pfi_kifaddr_update, kif)) == NULL) - panic("pfi_attach_ifnet: cannot allocate '%s' address hook", - ifp->if_xname); -#endif - - pfi_kif_update(kif); - - splx(s); -} - -void -pfi_detach_ifnet(struct ifnet *ifp) -{ - int s; - struct pfi_kif *kif; - - if ((kif = (struct pfi_kif *)ifp->if_pf_kif) == NULL) - return; - - s = splsoftnet(); -#ifdef __FreeBSD__ - V_pfi_update++; -#else - pfi_update++; -#endif -#ifndef __FreeBSD__ - hook_disestablish(ifp->if_addrhooks, kif->pfik_ah_cookie); -#endif - pfi_kif_update(kif); - - kif->pfik_ifp = NULL; - ifp->if_pf_kif = NULL; - pfi_kif_unref(kif, PFI_KIF_REF_NONE); - splx(s); -} - -void -pfi_attach_ifgroup(struct ifg_group *ifg) -{ - struct pfi_kif *kif; - int s; - - pfi_initialize(); - s = splsoftnet(); -#ifdef __FreeBSD__ - V_pfi_update++; -#else - pfi_update++; -#endif - if ((kif = pfi_kif_get(ifg->ifg_group)) == NULL) - panic("pfi_kif_get failed"); - - kif->pfik_group = ifg; - ifg->ifg_pf_kif = (caddr_t)kif; - - splx(s); -} - -void -pfi_detach_ifgroup(struct ifg_group *ifg) -{ - int s; - struct pfi_kif *kif; - - if ((kif = (struct pfi_kif *)ifg->ifg_pf_kif) == NULL) - return; - - s = splsoftnet(); -#ifdef __FreeBSD__ - V_pfi_update++; -#else - pfi_update++; -#endif - - kif->pfik_group = NULL; - ifg->ifg_pf_kif = NULL; - pfi_kif_unref(kif, PFI_KIF_REF_NONE); - splx(s); -} - -void -pfi_group_change(const char *group) -{ - struct pfi_kif *kif; - int s; - - s = splsoftnet(); -#ifdef __FreeBSD__ - V_pfi_update++; -#else - pfi_update++; -#endif - if ((kif = pfi_kif_get(group)) == NULL) - panic("pfi_kif_get failed"); - - pfi_kif_update(kif); - - splx(s); -} - -int -pfi_match_addr(struct pfi_dynaddr *dyn, struct pf_addr *a, sa_family_t af) -{ - switch (af) { -#ifdef INET - case AF_INET: - switch (dyn->pfid_acnt4) { - case 0: - return (0); - case 1: - return (PF_MATCHA(0, &dyn->pfid_addr4, - &dyn->pfid_mask4, a, AF_INET)); - default: - return (pfr_match_addr(dyn->pfid_kt, a, AF_INET)); - } - break; -#endif /* INET */ -#ifdef INET6 - case AF_INET6: - switch (dyn->pfid_acnt6) { - case 0: - return (0); - case 1: - return (PF_MATCHA(0, &dyn->pfid_addr6, - &dyn->pfid_mask6, a, AF_INET6)); - default: - return (pfr_match_addr(dyn->pfid_kt, a, AF_INET6)); - } - break; -#endif /* INET6 */ - default: - return (0); - } -} - -int -pfi_dynaddr_setup(struct pf_addr_wrap *aw, sa_family_t af) -{ - struct pfi_dynaddr *dyn; - char tblname[PF_TABLE_NAME_SIZE]; - struct pf_ruleset *ruleset = NULL; - int s, rv = 0; - - if (aw->type != PF_ADDR_DYNIFTL) - return (0); -#ifdef __FreeBSD__ - if ((dyn = pool_get(&V_pfi_addr_pl, PR_NOWAIT | PR_ZERO)) -#else - if ((dyn = pool_get(&pfi_addr_pl, PR_WAITOK | PR_LIMITFAIL | PR_ZERO)) -#endif - == NULL) - return (1); - - s = splsoftnet(); - if (!strcmp(aw->v.ifname, "self")) - dyn->pfid_kif = pfi_kif_get(IFG_ALL); - else - dyn->pfid_kif = pfi_kif_get(aw->v.ifname); - if (dyn->pfid_kif == NULL) { - rv = 1; - goto _bad; - } - pfi_kif_ref(dyn->pfid_kif, PFI_KIF_REF_RULE); - - dyn->pfid_net = pfi_unmask(&aw->v.a.mask); - if (af == AF_INET && dyn->pfid_net == 32) - dyn->pfid_net = 128; - strlcpy(tblname, aw->v.ifname, sizeof(tblname)); - if (aw->iflags & PFI_AFLAG_NETWORK) - strlcat(tblname, ":network", sizeof(tblname)); - if (aw->iflags & PFI_AFLAG_BROADCAST) - strlcat(tblname, ":broadcast", sizeof(tblname)); - if (aw->iflags & PFI_AFLAG_PEER) - strlcat(tblname, ":peer", sizeof(tblname)); - if (aw->iflags & PFI_AFLAG_NOALIAS) - strlcat(tblname, ":0", sizeof(tblname)); - if (dyn->pfid_net != 128) - snprintf(tblname + strlen(tblname), - sizeof(tblname) - strlen(tblname), "/%d", dyn->pfid_net); - if ((ruleset = pf_find_or_create_ruleset(PF_RESERVED_ANCHOR)) == NULL) { - rv = 1; - goto _bad; - } - - if ((dyn->pfid_kt = pfr_attach_table(ruleset, tblname, 1)) == NULL) { - rv = 1; - goto _bad; - } - - dyn->pfid_kt->pfrkt_flags |= PFR_TFLAG_ACTIVE; - dyn->pfid_iflags = aw->iflags; - dyn->pfid_af = af; - - TAILQ_INSERT_TAIL(&dyn->pfid_kif->pfik_dynaddrs, dyn, entry); - aw->p.dyn = dyn; - pfi_kif_update(dyn->pfid_kif); - splx(s); - return (0); - -_bad: - if (dyn->pfid_kt != NULL) - pfr_detach_table(dyn->pfid_kt); - if (ruleset != NULL) - pf_remove_if_empty_ruleset(ruleset); - if (dyn->pfid_kif != NULL) - pfi_kif_unref(dyn->pfid_kif, PFI_KIF_REF_RULE); -#ifdef __FreeBSD__ - pool_put(&V_pfi_addr_pl, dyn); -#else - pool_put(&pfi_addr_pl, dyn); -#endif - splx(s); - return (rv); -} - -void -pfi_kif_update(struct pfi_kif *kif) -{ - struct ifg_list *ifgl; - struct pfi_dynaddr *p; - - /* update all dynaddr */ - TAILQ_FOREACH(p, &kif->pfik_dynaddrs, entry) - pfi_dynaddr_update(p); - - /* again for all groups kif is member of */ - if (kif->pfik_ifp != NULL) - TAILQ_FOREACH(ifgl, &kif->pfik_ifp->if_groups, ifgl_next) - pfi_kif_update((struct pfi_kif *) - ifgl->ifgl_group->ifg_pf_kif); -} - -void -pfi_dynaddr_update(struct pfi_dynaddr *dyn) -{ - struct pfi_kif *kif; - struct pfr_ktable *kt; - - if (dyn == NULL || dyn->pfid_kif == NULL || dyn->pfid_kt == NULL) - panic("pfi_dynaddr_update"); - - kif = dyn->pfid_kif; - kt = dyn->pfid_kt; - -#ifdef __FreeBSD__ - if (kt->pfrkt_larg != V_pfi_update) { -#else - if (kt->pfrkt_larg != pfi_update) { -#endif - /* this table needs to be brought up-to-date */ - pfi_table_update(kt, kif, dyn->pfid_net, dyn->pfid_iflags); -#ifdef __FreeBSD__ - kt->pfrkt_larg = V_pfi_update; -#else - kt->pfrkt_larg = pfi_update; -#endif - } - pfr_dynaddr_update(kt, dyn); -} - -void -pfi_table_update(struct pfr_ktable *kt, struct pfi_kif *kif, int net, int flags) -{ - int e, size2 = 0; - struct ifg_member *ifgm; - -#ifdef __FreeBSD__ - V_pfi_buffer_cnt = 0; -#else - pfi_buffer_cnt = 0; -#endif - - if (kif->pfik_ifp != NULL) - pfi_instance_add(kif->pfik_ifp, net, flags); - else if (kif->pfik_group != NULL) - TAILQ_FOREACH(ifgm, &kif->pfik_group->ifg_members, ifgm_next) - pfi_instance_add(ifgm->ifgm_ifp, net, flags); - -#ifdef __FreeBSD__ - if ((e = pfr_set_addrs(&kt->pfrkt_t, V_pfi_buffer, V_pfi_buffer_cnt, &size2, - NULL, NULL, NULL, 0, PFR_TFLAG_ALLMASK))) - printf("pfi_table_update: cannot set %d new addresses " - "into table %s: %d\n", V_pfi_buffer_cnt, kt->pfrkt_name, e); -#else - if ((e = pfr_set_addrs(&kt->pfrkt_t, pfi_buffer, pfi_buffer_cnt, &size2, - NULL, NULL, NULL, 0, PFR_TFLAG_ALLMASK))) - printf("pfi_table_update: cannot set %d new addresses " - "into table %s: %d\n", pfi_buffer_cnt, kt->pfrkt_name, e); -#endif -} - -void -pfi_instance_add(struct ifnet *ifp, int net, int flags) -{ - struct ifaddr *ia; - int got4 = 0, got6 = 0; - int net2, af; - - if (ifp == NULL) - return; - TAILQ_FOREACH(ia, &ifp->if_addrlist, ifa_list) { - if (ia->ifa_addr == NULL) - continue; - af = ia->ifa_addr->sa_family; - if (af != AF_INET && af != AF_INET6) - continue; -#ifdef __FreeBSD__ - /* - * XXX: For point-to-point interfaces, (ifname:0) and IPv4, - * jump over addresses without a proper route to work - * around a problem with ppp not fully removing the - * address used during IPCP. - */ - if ((ifp->if_flags & IFF_POINTOPOINT) && - !(ia->ifa_flags & IFA_ROUTE) && - (flags & PFI_AFLAG_NOALIAS) && (af == AF_INET)) - continue; -#endif - if ((flags & PFI_AFLAG_BROADCAST) && af == AF_INET6) - continue; - if ((flags & PFI_AFLAG_BROADCAST) && - !(ifp->if_flags & IFF_BROADCAST)) - continue; - if ((flags & PFI_AFLAG_PEER) && - !(ifp->if_flags & IFF_POINTOPOINT)) - continue; - if ((flags & PFI_AFLAG_NETWORK) && af == AF_INET6 && - IN6_IS_ADDR_LINKLOCAL( - &((struct sockaddr_in6 *)ia->ifa_addr)->sin6_addr)) - continue; - if (flags & PFI_AFLAG_NOALIAS) { - if (af == AF_INET && got4) - continue; - if (af == AF_INET6 && got6) - continue; - } - if (af == AF_INET) - got4 = 1; - else if (af == AF_INET6) - got6 = 1; - net2 = net; - if (net2 == 128 && (flags & PFI_AFLAG_NETWORK)) { - if (af == AF_INET) - net2 = pfi_unmask(&((struct sockaddr_in *) - ia->ifa_netmask)->sin_addr); - else if (af == AF_INET6) - net2 = pfi_unmask(&((struct sockaddr_in6 *) - ia->ifa_netmask)->sin6_addr); - } - if (af == AF_INET && net2 > 32) - net2 = 32; - if (flags & PFI_AFLAG_BROADCAST) - pfi_address_add(ia->ifa_broadaddr, af, net2); - else if (flags & PFI_AFLAG_PEER) - pfi_address_add(ia->ifa_dstaddr, af, net2); - else - pfi_address_add(ia->ifa_addr, af, net2); - } -} - -void -pfi_address_add(struct sockaddr *sa, int af, int net) -{ - struct pfr_addr *p; - int i; - -#ifdef __FreeBSD__ - if (V_pfi_buffer_cnt >= V_pfi_buffer_max) { - int new_max = V_pfi_buffer_max * 2; -#else - if (pfi_buffer_cnt >= pfi_buffer_max) { - int new_max = pfi_buffer_max * 2; -#endif - - if (new_max > PFI_BUFFER_MAX) { - printf("pfi_address_add: address buffer full (%d/%d)\n", -#ifdef __FreeBSD__ - V_pfi_buffer_cnt, PFI_BUFFER_MAX); -#else - pfi_buffer_cnt, PFI_BUFFER_MAX); -#endif - return; - } - p = malloc(new_max * sizeof(*V_pfi_buffer), PFI_MTYPE, -#ifdef __FreeBSD__ - M_NOWAIT); -#else - M_DONTWAIT); -#endif - if (p == NULL) { - printf("pfi_address_add: no memory to grow buffer " -#ifdef __FreeBSD__ - "(%d/%d)\n", V_pfi_buffer_cnt, PFI_BUFFER_MAX); -#else - "(%d/%d)\n", pfi_buffer_cnt, PFI_BUFFER_MAX); -#endif - return; - } -#ifdef __FreeBSD__ - memcpy(V_pfi_buffer, p, V_pfi_buffer_cnt * sizeof(*V_pfi_buffer)); - /* no need to zero buffer */ - free(V_pfi_buffer, PFI_MTYPE); - V_pfi_buffer = p; - V_pfi_buffer_max = new_max; -#else - memcpy(pfi_buffer, p, pfi_buffer_cnt * sizeof(*pfi_buffer)); - /* no need to zero buffer */ - free(pfi_buffer, PFI_MTYPE); - pfi_buffer = p; - pfi_buffer_max = new_max; -#endif - } - if (af == AF_INET && net > 32) - net = 128; -#ifdef __FreeBSD__ - p = V_pfi_buffer + V_pfi_buffer_cnt++; -#else - p = pfi_buffer + pfi_buffer_cnt++; -#endif - bzero(p, sizeof(*p)); - p->pfra_af = af; - p->pfra_net = net; - if (af == AF_INET) - p->pfra_ip4addr = ((struct sockaddr_in *)sa)->sin_addr; - else if (af == AF_INET6) { - p->pfra_ip6addr = ((struct sockaddr_in6 *)sa)->sin6_addr; - if (IN6_IS_SCOPE_EMBED(&p->pfra_ip6addr)) - p->pfra_ip6addr.s6_addr16[1] = 0; - } - /* mask network address bits */ - if (net < 128) - ((caddr_t)p)[p->pfra_net/8] &= ~(0xFF >> (p->pfra_net%8)); - for (i = (p->pfra_net+7)/8; i < sizeof(p->pfra_u); i++) - ((caddr_t)p)[i] = 0; -} - -void -pfi_dynaddr_remove(struct pf_addr_wrap *aw) -{ - int s; - - if (aw->type != PF_ADDR_DYNIFTL || aw->p.dyn == NULL || - aw->p.dyn->pfid_kif == NULL || aw->p.dyn->pfid_kt == NULL) - return; - - s = splsoftnet(); - TAILQ_REMOVE(&aw->p.dyn->pfid_kif->pfik_dynaddrs, aw->p.dyn, entry); - pfi_kif_unref(aw->p.dyn->pfid_kif, PFI_KIF_REF_RULE); - aw->p.dyn->pfid_kif = NULL; - pfr_detach_table(aw->p.dyn->pfid_kt); - aw->p.dyn->pfid_kt = NULL; -#ifdef __FreeBSD__ - pool_put(&V_pfi_addr_pl, aw->p.dyn); -#else - pool_put(&pfi_addr_pl, aw->p.dyn); -#endif - aw->p.dyn = NULL; - splx(s); -} - -void -pfi_dynaddr_copyout(struct pf_addr_wrap *aw) -{ - if (aw->type != PF_ADDR_DYNIFTL || aw->p.dyn == NULL || - aw->p.dyn->pfid_kif == NULL) - return; - aw->p.dyncnt = aw->p.dyn->pfid_acnt4 + aw->p.dyn->pfid_acnt6; -} - -void -pfi_kifaddr_update(void *v) -{ - int s; - struct pfi_kif *kif = (struct pfi_kif *)v; - - s = splsoftnet(); -#ifdef __FreeBSD__ - V_pfi_update++; -#else - pfi_update++; -#endif - pfi_kif_update(kif); - splx(s); -} - -int -pfi_if_compare(struct pfi_kif *p, struct pfi_kif *q) -{ - return (strncmp(p->pfik_name, q->pfik_name, IFNAMSIZ)); -} - -void -pfi_update_status(const char *name, struct pf_status *pfs) -{ - struct pfi_kif *p; - struct pfi_kif_cmp key; - struct ifg_member p_member, *ifgm; - TAILQ_HEAD(, ifg_member) ifg_members; - int i, j, k, s; - - strlcpy(key.pfik_name, name, sizeof(key.pfik_name)); - s = splsoftnet(); -#ifdef __FreeBSD__ - p = RB_FIND(pfi_ifhead, &V_pfi_ifs, (struct pfi_kif *)&key); -#else - p = RB_FIND(pfi_ifhead, &pfi_ifs, (struct pfi_kif *)&key); -#endif - if (p == NULL) { - splx(s); - return; - } - if (p->pfik_group != NULL) { - bcopy(&p->pfik_group->ifg_members, &ifg_members, - sizeof(ifg_members)); - } else { - /* build a temporary list for p only */ - bzero(&p_member, sizeof(p_member)); - p_member.ifgm_ifp = p->pfik_ifp; - TAILQ_INIT(&ifg_members); - TAILQ_INSERT_TAIL(&ifg_members, &p_member, ifgm_next); - } - if (pfs) { - bzero(pfs->pcounters, sizeof(pfs->pcounters)); - bzero(pfs->bcounters, sizeof(pfs->bcounters)); - } - TAILQ_FOREACH(ifgm, &ifg_members, ifgm_next) { - if (ifgm->ifgm_ifp == NULL) - continue; - p = (struct pfi_kif *)ifgm->ifgm_ifp->if_pf_kif; - - /* just clear statistics */ - if (pfs == NULL) { - bzero(p->pfik_packets, sizeof(p->pfik_packets)); - bzero(p->pfik_bytes, sizeof(p->pfik_bytes)); - p->pfik_tzero = time_second; - continue; - } - for (i = 0; i < 2; i++) - for (j = 0; j < 2; j++) - for (k = 0; k < 2; k++) { - pfs->pcounters[i][j][k] += - p->pfik_packets[i][j][k]; - pfs->bcounters[i][j] += - p->pfik_bytes[i][j][k]; - } - } - splx(s); -} - -int -pfi_get_ifaces(const char *name, struct pfi_kif *buf, int *size) -{ - struct pfi_kif *p, *nextp; - int s, n = 0; -#ifdef __FreeBSD__ - int error; -#endif - - s = splsoftnet(); -#ifdef __FreeBSD__ - for (p = RB_MIN(pfi_ifhead, &V_pfi_ifs); p; p = nextp) { - nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p); -#else - for (p = RB_MIN(pfi_ifhead, &pfi_ifs); p; p = nextp) { - nextp = RB_NEXT(pfi_ifhead, &pfi_ifs, p); -#endif - if (pfi_skip_if(name, p)) - continue; - if (*size > n++) { - if (!p->pfik_tzero) - p->pfik_tzero = time_second; - pfi_kif_ref(p, PFI_KIF_REF_RULE); -#ifdef __FreeBSD__ - PF_COPYOUT(p, buf++, sizeof(*buf), error); - if (error) { -#else - if (copyout(p, buf++, sizeof(*buf))) { -#endif - pfi_kif_unref(p, PFI_KIF_REF_RULE); - splx(s); - return (EFAULT); - } -#ifdef __FreeBSD__ - nextp = RB_NEXT(pfi_ifhead, &V_pfi_ifs, p); -#else - nextp = RB_NEXT(pfi_ifhead, &pfi_ifs, p); -#endif - pfi_kif_unref(p, PFI_KIF_REF_RULE); - } - } - splx(s); - *size = n; - return (0); -} - -int -pfi_skip_if(const char *filter, struct pfi_kif *p) -{ - int n; - - if (filter == NULL || !*filter) - return (0); - if (!strcmp(p->pfik_name, filter)) - return (0); /* exact match */ - n = strlen(filter); - if (n < 1 || n >= IFNAMSIZ) - return (1); /* sanity check */ - if (filter[n-1] >= '0' && filter[n-1] <= '9') - return (1); /* only do exact match in that case */ - if (strncmp(p->pfik_name, filter, n)) - return (1); /* prefix doesn't match */ - return (p->pfik_name[n] < '0' || p->pfik_name[n] > '9'); -} - -int -pfi_set_flags(const char *name, int flags) -{ - struct pfi_kif *p; - int s; - - s = splsoftnet(); -#ifdef __FreeBSD__ - RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) { -#else - RB_FOREACH(p, pfi_ifhead, &pfi_ifs) { -#endif - if (pfi_skip_if(name, p)) - continue; - p->pfik_flags |= flags; - } - splx(s); - return (0); -} - -int -pfi_clear_flags(const char *name, int flags) -{ - struct pfi_kif *p; - int s; - - s = splsoftnet(); -#ifdef __FreeBSD__ - RB_FOREACH(p, pfi_ifhead, &V_pfi_ifs) { -#else - RB_FOREACH(p, pfi_ifhead, &pfi_ifs) { -#endif - if (pfi_skip_if(name, p)) - continue; - p->pfik_flags &= ~flags; - } - splx(s); - return (0); -} - -/* from pf_print_state.c */ -int -pfi_unmask(void *addr) -{ - struct pf_addr *m = addr; - int i = 31, j = 0, b = 0; - u_int32_t tmp; - - while (j < 4 && m->addr32[j] == 0xffffffff) { - b += 32; - j++; - } - if (j < 4) { - tmp = ntohl(m->addr32[j]); - for (i = 31; tmp & (1 << i); --i) - b++; - } - return (b); -} - -#ifdef __FreeBSD__ -void -pfi_attach_ifnet_event(void *arg __unused, struct ifnet *ifp) -{ - - CURVNET_SET(ifp->if_vnet); - PF_LOCK(); - pfi_attach_ifnet(ifp); -#ifdef ALTQ - pf_altq_ifnet_event(ifp, 0); -#endif - PF_UNLOCK(); - CURVNET_RESTORE(); -} - -void -pfi_detach_ifnet_event(void *arg __unused, struct ifnet *ifp) -{ - - CURVNET_SET(ifp->if_vnet); - PF_LOCK(); - pfi_detach_ifnet(ifp); -#ifdef ALTQ - pf_altq_ifnet_event(ifp, 1); -#endif - PF_UNLOCK(); - CURVNET_RESTORE(); -} - -void -pfi_attach_group_event(void *arg , struct ifg_group *ifg) -{ - - CURVNET_SET((struct vnet *)arg); - PF_LOCK(); - pfi_attach_ifgroup(ifg); - PF_UNLOCK(); - CURVNET_RESTORE(); -} - -void -pfi_change_group_event(void *arg, char *gname) -{ - - CURVNET_SET((struct vnet *)arg); - PF_LOCK(); - pfi_group_change(gname); - PF_UNLOCK(); - CURVNET_RESTORE(); -} - -void -pfi_detach_group_event(void *arg, struct ifg_group *ifg) -{ - - CURVNET_SET((struct vnet *)arg); - PF_LOCK(); - pfi_detach_ifgroup(ifg); - PF_UNLOCK(); - CURVNET_RESTORE(); -} - -void -pfi_ifaddr_event(void *arg __unused, struct ifnet *ifp) -{ - - CURVNET_SET(ifp->if_vnet); - PF_LOCK(); - if (ifp && ifp->if_pf_kif) - pfi_kifaddr_update(ifp->if_pf_kif); - PF_UNLOCK(); - CURVNET_RESTORE(); -} -#endif /* __FreeBSD__ */ |