/* * Copyright (c) 2000-2014 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1980, 1986, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.c 8.3 (Berkeley) 1/4/94 * $FreeBSD: src/sys/net/if.c,v 1.85.2.9 2001/07/24 19:10:17 brooks Exp $ */ /* * NOTICE: This file was modified by SPARTA, Inc. in 2006 to introduce * support for mandatory and extensible security protections. This notice * is included in support of clause 2.2 (b) of the Apple Public License, * Version 2.0. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if INET || INET6 /*XXX*/ #include #include #include #include #include #include #include #include #include #if INET6 #include #include #include #include #endif /* INET6 */ #endif /* INET || INET6 */ #if CONFIG_MACF_NET #include #endif #if PF_ALTQ #include #endif /* !PF_ALTQ */ /* * System initialization */ extern char *proc_name_address(void *); /* Lock group and attribute for ifaddr lock */ lck_attr_t *ifa_mtx_attr; lck_grp_t *ifa_mtx_grp; static lck_grp_attr_t *ifa_mtx_grp_attr; static int ifioctl_ifreq(struct socket *, u_long, struct ifreq *, struct proc *); static int ifioctl_ifconf(u_long, caddr_t); static int ifioctl_ifclone(u_long, caddr_t); static int ifioctl_ifdesc(struct ifnet *, u_long, caddr_t, struct proc *); static int ifioctl_linkparams(struct ifnet *, u_long, caddr_t, struct proc *); static int ifioctl_qstats(struct ifnet *, u_long, caddr_t); static int ifioctl_throttle(struct ifnet *, u_long, caddr_t, struct proc *); static int ifconf(u_long cmd, user_addr_t ifrp, int * ret_space); __private_extern__ void link_rtrequest(int, struct rtentry *, struct sockaddr *); void if_rtproto_del(struct ifnet *ifp, int protocol); static int if_addmulti_common(struct ifnet *, const struct sockaddr *, struct ifmultiaddr **, int); static int if_delmulti_common(struct ifmultiaddr *, struct ifnet *, const struct sockaddr *, int); static int if_rtmtu(struct radix_node *, void *); static void if_rtmtu_update(struct ifnet *); static int if_clone_list(int, int *, user_addr_t); MALLOC_DEFINE(M_IFADDR, "ifaddr", "interface address"); struct ifnethead ifnet_head = TAILQ_HEAD_INITIALIZER(ifnet_head); static int if_cloners_count; LIST_HEAD(, if_clone) if_cloners = LIST_HEAD_INITIALIZER(if_cloners); static struct ifaddr *ifa_ifwithnet_common(const struct sockaddr *, unsigned int); static void if_attach_ifa_common(struct ifnet *, struct ifaddr *, int); static void if_detach_ifa_common(struct ifnet *, struct ifaddr *, int); static void if_attach_ifma(struct ifnet *, struct ifmultiaddr *, int); static int if_detach_ifma(struct ifnet *, struct ifmultiaddr *, int); static struct ifmultiaddr *ifma_alloc(int); static void ifma_free(struct ifmultiaddr *); static void ifma_trace(struct ifmultiaddr *, int); #if DEBUG static unsigned int ifma_debug = 1; /* debugging (enabled) */ #else static unsigned int ifma_debug; /* debugging (disabled) */ #endif /* !DEBUG */ static unsigned int ifma_size; /* size of zone element */ static struct zone *ifma_zone; /* zone for ifmultiaddr */ #define IFMA_TRACE_HIST_SIZE 32 /* size of trace history */ /* For gdb */ __private_extern__ unsigned int ifma_trace_hist_size = IFMA_TRACE_HIST_SIZE; struct ifmultiaddr_dbg { struct ifmultiaddr ifma; /* ifmultiaddr */ u_int16_t ifma_refhold_cnt; /* # of ref */ u_int16_t ifma_refrele_cnt; /* # of rele */ /* * Circular lists of IFA_ADDREF and IFA_REMREF callers. */ ctrace_t ifma_refhold[IFMA_TRACE_HIST_SIZE]; ctrace_t ifma_refrele[IFMA_TRACE_HIST_SIZE]; /* * Trash list linkage */ TAILQ_ENTRY(ifmultiaddr_dbg) ifma_trash_link; }; /* List of trash ifmultiaddr entries protected by ifma_trash_lock */ static TAILQ_HEAD(, ifmultiaddr_dbg) ifma_trash_head; static decl_lck_mtx_data(, ifma_trash_lock); #define IFMA_ZONE_MAX 64 /* maximum elements in zone */ #define IFMA_ZONE_NAME "ifmultiaddr" /* zone name */ #if INET6 /* * XXX: declare here to avoid to include many inet6 related files.. * should be more generalized? */ extern void nd6_setmtu(struct ifnet *); extern lck_mtx_t *nd6_mutex; #endif SYSCTL_NODE(_net, PF_LINK, link, CTLFLAG_RW|CTLFLAG_LOCKED, 0, "Link layers"); SYSCTL_NODE(_net_link, 0, generic, CTLFLAG_RW|CTLFLAG_LOCKED, 0, "Generic link-management"); SYSCTL_DECL(_net_link_generic_system); static uint32_t if_verbose = 0; SYSCTL_INT(_net_link_generic_system, OID_AUTO, if_verbose, CTLFLAG_RW | CTLFLAG_LOCKED, &if_verbose, 0, ""); void ifa_init(void) { /* Setup lock group and attribute for ifaddr */ ifa_mtx_grp_attr = lck_grp_attr_alloc_init(); ifa_mtx_grp = lck_grp_alloc_init("ifaddr", ifa_mtx_grp_attr); ifa_mtx_attr = lck_attr_alloc_init(); PE_parse_boot_argn("ifa_debug", &ifma_debug, sizeof (ifma_debug)); ifma_size = (ifma_debug == 0) ? sizeof (struct ifmultiaddr) : sizeof (struct ifmultiaddr_dbg); ifma_zone = zinit(ifma_size, IFMA_ZONE_MAX * ifma_size, 0, IFMA_ZONE_NAME); if (ifma_zone == NULL) { panic("%s: failed allocating %s", __func__, IFMA_ZONE_NAME); /* NOTREACHED */ } zone_change(ifma_zone, Z_EXPAND, TRUE); zone_change(ifma_zone, Z_CALLERACCT, FALSE); lck_mtx_init(&ifma_trash_lock, ifa_mtx_grp, ifa_mtx_attr); TAILQ_INIT(&ifma_trash_head); } /* * Network interface utility routines. * * Routines with ifa_ifwith* names take sockaddr *'s as * parameters. */ int if_index; struct ifaddr **ifnet_addrs; struct ifnet **ifindex2ifnet; __private_extern__ void if_attach_ifa(struct ifnet *ifp, struct ifaddr *ifa) { if_attach_ifa_common(ifp, ifa, 0); } __private_extern__ void if_attach_link_ifa(struct ifnet *ifp, struct ifaddr *ifa) { if_attach_ifa_common(ifp, ifa, 1); } static void if_attach_ifa_common(struct ifnet *ifp, struct ifaddr *ifa, int link) { ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_EXCLUSIVE); IFA_LOCK_ASSERT_HELD(ifa); if (ifa->ifa_ifp != ifp) { panic("%s: Mismatch ifa_ifp=%p != ifp=%p", __func__, ifa->ifa_ifp, ifp); /* NOTREACHED */ } else if (ifa->ifa_debug & IFD_ATTACHED) { panic("%s: Attempt to attach an already attached ifa=%p", __func__, ifa); /* NOTREACHED */ } else if (link && !(ifa->ifa_debug & IFD_LINK)) { panic("%s: Unexpected non-link address ifa=%p", __func__, ifa); /* NOTREACHED */ } else if (!link && (ifa->ifa_debug & IFD_LINK)) { panic("%s: Unexpected link address ifa=%p", __func__, ifa); /* NOTREACHED */ } IFA_ADDREF_LOCKED(ifa); ifa->ifa_debug |= IFD_ATTACHED; if (link) TAILQ_INSERT_HEAD(&ifp->if_addrhead, ifa, ifa_link); else TAILQ_INSERT_TAIL(&ifp->if_addrhead, ifa, ifa_link); if (ifa->ifa_attached != NULL) (*ifa->ifa_attached)(ifa); } __private_extern__ void if_detach_ifa(struct ifnet *ifp, struct ifaddr *ifa) { if_detach_ifa_common(ifp, ifa, 0); } __private_extern__ void if_detach_link_ifa(struct ifnet *ifp, struct ifaddr *ifa) { if_detach_ifa_common(ifp, ifa, 1); } static void if_detach_ifa_common(struct ifnet *ifp, struct ifaddr *ifa, int link) { ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_EXCLUSIVE); IFA_LOCK_ASSERT_HELD(ifa); if (link && !(ifa->ifa_debug & IFD_LINK)) { panic("%s: Unexpected non-link address ifa=%p", __func__, ifa); /* NOTREACHED */ } else if (link && ifa != TAILQ_FIRST(&ifp->if_addrhead)) { panic("%s: Link address ifa=%p not first", __func__, ifa); /* NOTREACHED */ } else if (!link && (ifa->ifa_debug & IFD_LINK)) { panic("%s: Unexpected link address ifa=%p", __func__, ifa); /* NOTREACHED */ } else if (!(ifa->ifa_debug & IFD_ATTACHED)) { panic("%s: Attempt to detach an unattached address ifa=%p", __func__, ifa); /* NOTREACHED */ } else if (ifa->ifa_ifp != ifp) { panic("%s: Mismatch ifa_ifp=%p, ifp=%p", __func__, ifa->ifa_ifp, ifp); /* NOTREACHED */ } else if (ifa->ifa_debug & IFD_DEBUG) { struct ifaddr *ifa2; TAILQ_FOREACH(ifa2, &ifp->if_addrhead, ifa_link) { if (ifa2 == ifa) break; } if (ifa2 != ifa) { panic("%s: Attempt to detach a stray address ifa=%p", __func__, ifa); /* NOTREACHED */ } } TAILQ_REMOVE(&ifp->if_addrhead, ifa, ifa_link); /* This must not be the last reference to the ifaddr */ if (IFA_REMREF_LOCKED(ifa) == NULL) { panic("%s: unexpected (missing) refcnt ifa=%p", __func__, ifa); /* NOTREACHED */ } ifa->ifa_debug &= ~IFD_ATTACHED; if (ifa->ifa_detached != NULL) (*ifa->ifa_detached)(ifa); } #define INITIAL_IF_INDEXLIM 8 /* * Function: if_next_index * Purpose: * Return the next available interface index. * Grow the ifnet_addrs[] and ifindex2ifnet[] arrays to accomodate the * added entry when necessary. * * Note: * ifnet_addrs[] is indexed by (if_index - 1), whereas * ifindex2ifnet[] is indexed by ifp->if_index. That requires us to * always allocate one extra element to hold ifindex2ifnet[0], which * is unused. */ int if_next_index(void); __private_extern__ int if_next_index(void) { static int if_indexlim = 0; int new_index; new_index = ++if_index; if (if_index > if_indexlim) { unsigned n; int new_if_indexlim; caddr_t new_ifnet_addrs; caddr_t new_ifindex2ifnet; caddr_t old_ifnet_addrs; old_ifnet_addrs = (caddr_t)ifnet_addrs; if (ifnet_addrs == NULL) { new_if_indexlim = INITIAL_IF_INDEXLIM; } else { new_if_indexlim = if_indexlim << 1; } /* allocate space for the larger arrays */ n = (2 * new_if_indexlim + 1) * sizeof(caddr_t); new_ifnet_addrs = _MALLOC(n, M_IFADDR, M_WAITOK); if (new_ifnet_addrs == NULL) { --if_index; return -1; } new_ifindex2ifnet = new_ifnet_addrs + new_if_indexlim * sizeof(caddr_t); bzero(new_ifnet_addrs, n); if (ifnet_addrs != NULL) { /* copy the existing data */ bcopy((caddr_t)ifnet_addrs, new_ifnet_addrs, if_indexlim * sizeof(caddr_t)); bcopy((caddr_t)ifindex2ifnet, new_ifindex2ifnet, (if_indexlim + 1) * sizeof(caddr_t)); } /* switch to the new tables and size */ ifnet_addrs = (struct ifaddr **)(void *)new_ifnet_addrs; ifindex2ifnet = (struct ifnet **)(void *)new_ifindex2ifnet; if_indexlim = new_if_indexlim; /* release the old data */ if (old_ifnet_addrs != NULL) { _FREE((caddr_t)old_ifnet_addrs, M_IFADDR); } } return (new_index); } /* * Create a clone network interface. */ static int if_clone_create(char *name, int len, void *params) { struct if_clone *ifc; char *dp; int wildcard; u_int32_t bytoff, bitoff; u_int32_t unit; int err; ifc = if_clone_lookup(name, &unit); if (ifc == NULL) return (EINVAL); if (ifunit(name) != NULL) return (EEXIST); bytoff = bitoff = 0; wildcard = (unit == UINT32_MAX); /* * Find a free unit if none was given. */ if (wildcard) { while ((bytoff < ifc->ifc_bmlen) && (ifc->ifc_units[bytoff] == 0xff)) bytoff++; if (bytoff >= ifc->ifc_bmlen) return (ENOSPC); while ((ifc->ifc_units[bytoff] & (1 << bitoff)) != 0) bitoff++; unit = (bytoff << 3) + bitoff; } if (unit > ifc->ifc_maxunit) return (ENXIO); err = (*ifc->ifc_create)(ifc, unit, params); if (err != 0) return (err); if (!wildcard) { bytoff = unit >> 3; bitoff = unit - (bytoff << 3); } /* * Allocate the unit in the bitmap. */ KASSERT((ifc->ifc_units[bytoff] & (1 << bitoff)) == 0, ("%s: bit is already set", __func__)); ifc->ifc_units[bytoff] |= (1 << bitoff); /* In the wildcard case, we need to update the name. */ if (wildcard) { for (dp = name; *dp != '\0'; dp++); if (snprintf(dp, len - (dp-name), "%d", unit) > len - (dp-name) - 1) { /* * This can only be a programmer error and * there's no straightforward way to recover if * it happens. */ panic("%s: interface name too long", __func__); /* NOTREACHED */ } } return (0); } /* * Destroy a clone network interface. */ static int if_clone_destroy(const char *name) { struct if_clone *ifc; struct ifnet *ifp; int bytoff, bitoff; u_int32_t unit; ifc = if_clone_lookup(name, &unit); if (ifc == NULL) return (EINVAL); if (unit < ifc->ifc_minifs) return (EINVAL); ifp = ifunit(name); if (ifp == NULL) return (ENXIO); if (ifc->ifc_destroy == NULL) return (EOPNOTSUPP); (*ifc->ifc_destroy)(ifp); /* * Compute offset in the bitmap and deallocate the unit. */ bytoff = unit >> 3; bitoff = unit - (bytoff << 3); KASSERT((ifc->ifc_units[bytoff] & (1 << bitoff)) != 0, ("%s: bit is already cleared", __func__)); ifc->ifc_units[bytoff] &= ~(1 << bitoff); return (0); } /* * Look up a network interface cloner. */ __private_extern__ struct if_clone * if_clone_lookup(const char *name, u_int32_t *unitp) { struct if_clone *ifc; const char *cp; u_int32_t i; for (ifc = LIST_FIRST(&if_cloners); ifc != NULL;) { for (cp = name, i = 0; i < ifc->ifc_namelen; i++, cp++) { if (ifc->ifc_name[i] != *cp) goto next_ifc; } goto found_name; next_ifc: ifc = LIST_NEXT(ifc, ifc_list); } /* No match. */ return ((struct if_clone *)NULL); found_name: if (*cp == '\0') { i = UINT32_MAX; } else { for (i = 0; *cp != '\0'; cp++) { if (*cp < '0' || *cp > '9') { /* Bogus unit number. */ return (NULL); } i = (i * 10) + (*cp - '0'); } } if (unitp != NULL) *unitp = i; return (ifc); } /* * Register a network interface cloner. */ int if_clone_attach(struct if_clone *ifc) { int bytoff, bitoff; int err; int len, maxclone; u_int32_t unit; KASSERT(ifc->ifc_minifs - 1 <= ifc->ifc_maxunit, ("%s: %s requested more units then allowed (%d > %d)", __func__, ifc->ifc_name, ifc->ifc_minifs, ifc->ifc_maxunit + 1)); /* * Compute bitmap size and allocate it. */ maxclone = ifc->ifc_maxunit + 1; len = maxclone >> 3; if ((len << 3) < maxclone) len++; ifc->ifc_units = _MALLOC(len, M_CLONE, M_WAITOK | M_ZERO); if (ifc->ifc_units == NULL) return ENOBUFS; bzero(ifc->ifc_units, len); ifc->ifc_bmlen = len; LIST_INSERT_HEAD(&if_cloners, ifc, ifc_list); if_cloners_count++; for (unit = 0; unit < ifc->ifc_minifs; unit++) { err = (*ifc->ifc_create)(ifc, unit, NULL); KASSERT(err == 0, ("%s: failed to create required interface %s%d", __func__, ifc->ifc_name, unit)); /* Allocate the unit in the bitmap. */ bytoff = unit >> 3; bitoff = unit - (bytoff << 3); ifc->ifc_units[bytoff] |= (1 << bitoff); } return 0; } /* * Unregister a network interface cloner. */ void if_clone_detach(struct if_clone *ifc) { LIST_REMOVE(ifc, ifc_list); FREE(ifc->ifc_units, M_CLONE); if_cloners_count--; } /* * Provide list of interface cloners to userspace. */ static int if_clone_list(int count, int *ret_total, user_addr_t dst) { char outbuf[IFNAMSIZ]; struct if_clone *ifc; int error = 0; *ret_total = if_cloners_count; if (dst == USER_ADDR_NULL) { /* Just asking how many there are. */ return (0); } if (count < 0) return (EINVAL); count = (if_cloners_count < count) ? if_cloners_count : count; for (ifc = LIST_FIRST(&if_cloners); ifc != NULL && count != 0; ifc = LIST_NEXT(ifc, ifc_list), count--, dst += IFNAMSIZ) { strlcpy(outbuf, ifc->ifc_name, IFNAMSIZ); error = copyout(outbuf, dst, IFNAMSIZ); if (error) break; } return (error); } /* * Similar to ifa_ifwithaddr, except that this is IPv4 specific * and that it matches only the local (not broadcast) address. */ __private_extern__ struct in_ifaddr * ifa_foraddr(unsigned int addr) { return (ifa_foraddr_scoped(addr, IFSCOPE_NONE)); } /* * Similar to ifa_foraddr, except with the added interface scope * constraint (unless the caller passes in IFSCOPE_NONE in which * case there is no scope restriction). */ __private_extern__ struct in_ifaddr * ifa_foraddr_scoped(unsigned int addr, unsigned int scope) { struct in_ifaddr *ia = NULL; lck_rw_lock_shared(in_ifaddr_rwlock); TAILQ_FOREACH(ia, INADDR_HASH(addr), ia_hash) { IFA_LOCK_SPIN(&ia->ia_ifa); if (ia->ia_addr.sin_addr.s_addr == addr && (scope == IFSCOPE_NONE || ia->ia_ifp->if_index == scope)) { IFA_ADDREF_LOCKED(&ia->ia_ifa); /* for caller */ IFA_UNLOCK(&ia->ia_ifa); break; } IFA_UNLOCK(&ia->ia_ifa); } lck_rw_done(in_ifaddr_rwlock); return (ia); } #if INET6 /* * Similar to ifa_foraddr, except that this for IPv6. */ __private_extern__ struct in6_ifaddr * ifa_foraddr6(struct in6_addr *addr6) { return (ifa_foraddr6_scoped(addr6, IFSCOPE_NONE)); } __private_extern__ struct in6_ifaddr * ifa_foraddr6_scoped(struct in6_addr *addr6, unsigned int scope) { struct in6_ifaddr *ia = NULL; lck_rw_lock_shared(&in6_ifaddr_rwlock); for (ia = in6_ifaddrs; ia; ia = ia->ia_next) { IFA_LOCK(&ia->ia_ifa); if (IN6_ARE_ADDR_EQUAL(&ia->ia_addr.sin6_addr, addr6) && (scope == IFSCOPE_NONE || ia->ia_ifp->if_index == scope)) { IFA_ADDREF_LOCKED(&ia->ia_ifa); /* for caller */ IFA_UNLOCK(&ia->ia_ifa); break; } IFA_UNLOCK(&ia->ia_ifa); } lck_rw_done(&in6_ifaddr_rwlock); return (ia); } #endif /* INET6 */ /* * Return the first (primary) address of a given family on an interface. */ __private_extern__ struct ifaddr * ifa_ifpgetprimary(struct ifnet *ifp, int family) { struct ifaddr *ifa; ifnet_lock_shared(ifp); TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { IFA_LOCK_SPIN(ifa); if (ifa->ifa_addr->sa_family == family) { IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } IFA_UNLOCK(ifa); } ifnet_lock_done(ifp); return (ifa); } /* * Locate an interface based on a complete address. */ /*ARGSUSED*/ struct ifaddr * ifa_ifwithaddr(const struct sockaddr *addr) { struct ifnet *ifp; struct ifaddr *ifa; struct ifaddr *result = NULL; #define equal(a1, a2) \ (bcmp((const void*)(a1), (const void*)(a2), \ ((const struct sockaddr *)(a1))->sa_len) == 0) ifnet_head_lock_shared(); for (ifp = ifnet_head.tqh_first; ifp && !result; ifp = ifp->if_link.tqe_next) { ifnet_lock_shared(ifp); for (ifa = ifp->if_addrhead.tqh_first; ifa; ifa = ifa->ifa_link.tqe_next) { IFA_LOCK_SPIN(ifa); if (ifa->ifa_addr->sa_family != addr->sa_family) { IFA_UNLOCK(ifa); continue; } if (equal(addr, ifa->ifa_addr)) { result = ifa; IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } if ((ifp->if_flags & IFF_BROADCAST) && ifa->ifa_broadaddr != NULL && /* IP6 doesn't have broadcast */ ifa->ifa_broadaddr->sa_len != 0 && equal(ifa->ifa_broadaddr, addr)) { result = ifa; IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } IFA_UNLOCK(ifa); } ifnet_lock_done(ifp); } ifnet_head_done(); return (result); } /* * Locate the point to point interface with a given destination address. */ /*ARGSUSED*/ struct ifaddr * ifa_ifwithdstaddr(const struct sockaddr *addr) { struct ifnet *ifp; struct ifaddr *ifa; struct ifaddr *result = NULL; ifnet_head_lock_shared(); for (ifp = ifnet_head.tqh_first; ifp && !result; ifp = ifp->if_link.tqe_next) { if ((ifp->if_flags & IFF_POINTOPOINT)) { ifnet_lock_shared(ifp); for (ifa = ifp->if_addrhead.tqh_first; ifa; ifa = ifa->ifa_link.tqe_next) { IFA_LOCK_SPIN(ifa); if (ifa->ifa_addr->sa_family != addr->sa_family) { IFA_UNLOCK(ifa); continue; } if (ifa->ifa_dstaddr && equal(addr, ifa->ifa_dstaddr)) { result = ifa; IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } IFA_UNLOCK(ifa); } ifnet_lock_done(ifp); } } ifnet_head_done(); return (result); } /* * Locate the source address of an interface based on a complete address. */ struct ifaddr * ifa_ifwithaddr_scoped(const struct sockaddr *addr, unsigned int ifscope) { struct ifaddr *result = NULL; struct ifnet *ifp; if (ifscope == IFSCOPE_NONE) return (ifa_ifwithaddr(addr)); ifnet_head_lock_shared(); if (ifscope > (unsigned int)if_index) { ifnet_head_done(); return (NULL); } ifp = ifindex2ifnet[ifscope]; if (ifp != NULL) { struct ifaddr *ifa = NULL; /* * This is suboptimal; there should be a better way * to search for a given address of an interface * for any given address family. */ ifnet_lock_shared(ifp); for (ifa = ifp->if_addrhead.tqh_first; ifa != NULL; ifa = ifa->ifa_link.tqe_next) { IFA_LOCK_SPIN(ifa); if (ifa->ifa_addr->sa_family != addr->sa_family) { IFA_UNLOCK(ifa); continue; } if (equal(addr, ifa->ifa_addr)) { result = ifa; IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } if ((ifp->if_flags & IFF_BROADCAST) && ifa->ifa_broadaddr != NULL && /* IP6 doesn't have broadcast */ ifa->ifa_broadaddr->sa_len != 0 && equal(ifa->ifa_broadaddr, addr)) { result = ifa; IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } IFA_UNLOCK(ifa); } ifnet_lock_done(ifp); } ifnet_head_done(); return (result); } struct ifaddr * ifa_ifwithnet(const struct sockaddr *addr) { return (ifa_ifwithnet_common(addr, IFSCOPE_NONE)); } struct ifaddr * ifa_ifwithnet_scoped(const struct sockaddr *addr, unsigned int ifscope) { return (ifa_ifwithnet_common(addr, ifscope)); } /* * Find an interface on a specific network. If many, choice * is most specific found. */ static struct ifaddr * ifa_ifwithnet_common(const struct sockaddr *addr, unsigned int ifscope) { struct ifnet *ifp; struct ifaddr *ifa = NULL; struct ifaddr *ifa_maybe = NULL; u_int af = addr->sa_family; const char *addr_data = addr->sa_data, *cplim; #if INET6 if ((af != AF_INET && af != AF_INET6) || (af == AF_INET && !ip_doscopedroute) || (af == AF_INET6 && !ip6_doscopedroute)) #else if (af != AF_INET || !ip_doscopedroute) #endif /* !INET6 */ ifscope = IFSCOPE_NONE; ifnet_head_lock_shared(); /* * AF_LINK addresses can be looked up directly by their index number, * so do that if we can. */ if (af == AF_LINK) { const struct sockaddr_dl *sdl = (const struct sockaddr_dl *)(uintptr_t)(size_t)addr; if (sdl->sdl_index && sdl->sdl_index <= if_index) { ifa = ifnet_addrs[sdl->sdl_index - 1]; if (ifa != NULL) IFA_ADDREF(ifa); ifnet_head_done(); return (ifa); } } /* * Scan though each interface, looking for ones that have * addresses in this address family. */ for (ifp = ifnet_head.tqh_first; ifp; ifp = ifp->if_link.tqe_next) { ifnet_lock_shared(ifp); for (ifa = ifp->if_addrhead.tqh_first; ifa; ifa = ifa->ifa_link.tqe_next) { const char *cp, *cp2, *cp3; IFA_LOCK(ifa); if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != af) { next: IFA_UNLOCK(ifa); continue; } /* * If we're looking up with a scope, * find using a matching interface. */ if (ifscope != IFSCOPE_NONE && ifp->if_index != ifscope) { IFA_UNLOCK(ifa); continue; } /* * Scan all the bits in the ifa's address. * If a bit dissagrees with what we are * looking for, mask it with the netmask * to see if it really matters. * (A byte at a time) */ if (ifa->ifa_netmask == 0) { IFA_UNLOCK(ifa); continue; } cp = addr_data; cp2 = ifa->ifa_addr->sa_data; cp3 = ifa->ifa_netmask->sa_data; cplim = ifa->ifa_netmask->sa_len + (char *)ifa->ifa_netmask; while (cp3 < cplim) if ((*cp++ ^ *cp2++) & *cp3++) goto next; /* next address! */ /* * If the netmask of what we just found * is more specific than what we had before * (if we had one) then remember the new one * before continuing to search * for an even better one. */ if (ifa_maybe == NULL || rn_refines((caddr_t)ifa->ifa_netmask, (caddr_t)ifa_maybe->ifa_netmask)) { IFA_ADDREF_LOCKED(ifa); /* ifa_maybe */ IFA_UNLOCK(ifa); if (ifa_maybe != NULL) IFA_REMREF(ifa_maybe); ifa_maybe = ifa; } else { IFA_UNLOCK(ifa); } IFA_LOCK_ASSERT_NOTHELD(ifa); } ifnet_lock_done(ifp); if (ifa != NULL) break; } ifnet_head_done(); if (ifa == NULL) ifa = ifa_maybe; else if (ifa_maybe != NULL) IFA_REMREF(ifa_maybe); return (ifa); } /* * Find an interface address specific to an interface best matching * a given address. */ struct ifaddr * ifaof_ifpforaddr(const struct sockaddr *addr, struct ifnet *ifp) { struct ifaddr *ifa = NULL; const char *cp, *cp2, *cp3; char *cplim; struct ifaddr *ifa_maybe = NULL; struct ifaddr *better_ifa_maybe = NULL; u_int af = addr->sa_family; if (af >= AF_MAX) return (NULL); ifnet_lock_shared(ifp); for (ifa = ifp->if_addrhead.tqh_first; ifa; ifa = ifa->ifa_link.tqe_next) { IFA_LOCK(ifa); if (ifa->ifa_addr->sa_family != af) { IFA_UNLOCK(ifa); continue; } if (ifa_maybe == NULL) { IFA_ADDREF_LOCKED(ifa); /* for ifa_maybe */ ifa_maybe = ifa; } if (ifa->ifa_netmask == 0) { if (equal(addr, ifa->ifa_addr) || (ifa->ifa_dstaddr && equal(addr, ifa->ifa_dstaddr))) { IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } IFA_UNLOCK(ifa); continue; } if (ifp->if_flags & IFF_POINTOPOINT) { if (ifa->ifa_dstaddr && equal(addr, ifa->ifa_dstaddr)) { IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } } else { if (equal(addr, ifa->ifa_addr)) { /* exact match */ IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } cp = addr->sa_data; cp2 = ifa->ifa_addr->sa_data; cp3 = ifa->ifa_netmask->sa_data; cplim = ifa->ifa_netmask->sa_len + (char *)ifa->ifa_netmask; for (; cp3 < cplim; cp3++) if ((*cp++ ^ *cp2++) & *cp3) break; if (cp3 == cplim) { /* subnet match */ if (better_ifa_maybe == NULL) { /* for better_ifa_maybe */ IFA_ADDREF_LOCKED(ifa); better_ifa_maybe = ifa; } } } IFA_UNLOCK(ifa); } if (ifa == NULL) { if (better_ifa_maybe != NULL) { ifa = better_ifa_maybe; better_ifa_maybe = NULL; } else { ifa = ifa_maybe; ifa_maybe = NULL; } } ifnet_lock_done(ifp); if (better_ifa_maybe != NULL) IFA_REMREF(better_ifa_maybe); if (ifa_maybe != NULL) IFA_REMREF(ifa_maybe); return (ifa); } #include /* * Default action when installing a route with a Link Level gateway. * Lookup an appropriate real ifa to point to. * This should be moved to /sys/net/link.c eventually. */ void link_rtrequest(int cmd, struct rtentry *rt, struct sockaddr *sa) { struct ifaddr *ifa; struct sockaddr *dst; struct ifnet *ifp; void (*ifa_rtrequest)(int, struct rtentry *, struct sockaddr *); lck_mtx_assert(rnh_lock, LCK_MTX_ASSERT_OWNED); RT_LOCK_ASSERT_HELD(rt); if (cmd != RTM_ADD || ((ifa = rt->rt_ifa) == 0) || ((ifp = ifa->ifa_ifp) == 0) || ((dst = rt_key(rt)) == 0)) return; /* Become a regular mutex, just in case */ RT_CONVERT_LOCK(rt); ifa = ifaof_ifpforaddr(dst, ifp); if (ifa) { rtsetifa(rt, ifa); IFA_LOCK_SPIN(ifa); ifa_rtrequest = ifa->ifa_rtrequest; IFA_UNLOCK(ifa); if (ifa_rtrequest != NULL && ifa_rtrequest != link_rtrequest) ifa_rtrequest(cmd, rt, sa); IFA_REMREF(ifa); } } /* * if_updown will set the interface up or down. It will * prevent other up/down events from occurring until this * up/down event has completed. * * Caller must lock ifnet. This function will drop the * lock. This allows ifnet_set_flags to set the rest of * the flags after we change the up/down state without * dropping the interface lock between setting the * up/down state and updating the rest of the flags. */ __private_extern__ void if_updown( struct ifnet *ifp, int up) { int i; struct ifaddr **ifa; struct timespec tv; struct ifclassq *ifq = &ifp->if_snd; /* Wait until no one else is changing the up/down state */ while ((ifp->if_eflags & IFEF_UPDOWNCHANGE) != 0) { tv.tv_sec = 0; tv.tv_nsec = NSEC_PER_SEC / 10; ifnet_lock_done(ifp); msleep(&ifp->if_eflags, NULL, 0, "if_updown", &tv); ifnet_lock_exclusive(ifp); } /* Verify that the interface isn't already in the right state */ if ((!up && (ifp->if_flags & IFF_UP) == 0) || (up && (ifp->if_flags & IFF_UP) == IFF_UP)) { return; } /* Indicate that the up/down state is changing */ ifp->if_eflags |= IFEF_UPDOWNCHANGE; /* Mark interface up or down */ if (up) { ifp->if_flags |= IFF_UP; } else { ifp->if_flags &= ~IFF_UP; } ifnet_touch_lastchange(ifp); /* Drop the lock to notify addresses and route */ ifnet_lock_done(ifp); if (ifnet_get_address_list(ifp, &ifa) == 0) { for (i = 0; ifa[i] != 0; i++) { pfctlinput(up ? PRC_IFUP : PRC_IFDOWN, ifa[i]->ifa_addr); } ifnet_free_address_list(ifa); } rt_ifmsg(ifp); if (!up) if_qflush(ifp, 0); /* Inform all transmit queues about the new link state */ IFCQ_LOCK(ifq); ifnet_update_sndq(ifq, up ? CLASSQ_EV_LINK_UP : CLASSQ_EV_LINK_DOWN); IFCQ_UNLOCK(ifq); /* Aquire the lock to clear the changing flag */ ifnet_lock_exclusive(ifp); ifp->if_eflags &= ~IFEF_UPDOWNCHANGE; wakeup(&ifp->if_eflags); } /* * Mark an interface down and notify protocols of * the transition. */ void if_down( struct ifnet *ifp) { ifnet_lock_exclusive(ifp); if_updown(ifp, 0); ifnet_lock_done(ifp); } /* * Mark an interface up and notify protocols of * the transition. */ void if_up( struct ifnet *ifp) { ifnet_lock_exclusive(ifp); if_updown(ifp, 1); ifnet_lock_done(ifp); } /* * Flush an interface queue. */ void if_qflush(struct ifnet *ifp, int ifq_locked) { struct ifclassq *ifq = &ifp->if_snd; if (!ifq_locked) IFCQ_LOCK(ifq); if (IFCQ_IS_ENABLED(ifq)) IFCQ_PURGE(ifq); #if PF_ALTQ if (IFCQ_IS_DRAINING(ifq)) ifq->ifcq_drain = 0; if (ALTQ_IS_ENABLED(IFCQ_ALTQ(ifq))) ALTQ_PURGE(IFCQ_ALTQ(ifq)); #endif /* PF_ALTQ */ VERIFY(IFCQ_IS_EMPTY(ifq)); if (!ifq_locked) IFCQ_UNLOCK(ifq); } void if_qflush_sc(struct ifnet *ifp, mbuf_svc_class_t sc, u_int32_t flow, u_int32_t *packets, u_int32_t *bytes, int ifq_locked) { struct ifclassq *ifq = &ifp->if_snd; u_int32_t cnt = 0, len = 0; u_int32_t a_cnt = 0, a_len = 0; VERIFY(sc == MBUF_SC_UNSPEC || MBUF_VALID_SC(sc)); VERIFY(flow != 0); if (!ifq_locked) IFCQ_LOCK(ifq); if (IFCQ_IS_ENABLED(ifq)) IFCQ_PURGE_SC(ifq, sc, flow, cnt, len); #if PF_ALTQ if (IFCQ_IS_DRAINING(ifq)) { VERIFY((signed)(ifq->ifcq_drain - cnt) >= 0); ifq->ifcq_drain -= cnt; } if (ALTQ_IS_ENABLED(IFCQ_ALTQ(ifq))) ALTQ_PURGE_SC(IFCQ_ALTQ(ifq), sc, flow, a_cnt, a_len); #endif /* PF_ALTQ */ if (!ifq_locked) IFCQ_UNLOCK(ifq); if (packets != NULL) *packets = cnt + a_cnt; if (bytes != NULL) *bytes = len + a_len; } /* * Map interface name to * interface structure pointer. */ struct ifnet * ifunit(const char *name) { char namebuf[IFNAMSIZ + 1]; const char *cp; struct ifnet *ifp; int unit; unsigned len, m; char c; len = strlen(name); if (len < 2 || len > IFNAMSIZ) return (NULL); cp = name + len - 1; c = *cp; if (c < '0' || c > '9') return (NULL); /* trailing garbage */ unit = 0; m = 1; do { if (cp == name) return (NULL); /* no interface name */ unit += (c - '0') * m; if (unit > 1000000) return (NULL); /* number is unreasonable */ m *= 10; c = *--cp; } while (c >= '0' && c <= '9'); len = cp - name + 1; bcopy(name, namebuf, len); namebuf[len] = '\0'; /* * Now search all the interfaces for this name/number */ ifnet_head_lock_shared(); TAILQ_FOREACH(ifp, &ifnet_head, if_link) { if (strncmp(ifp->if_name, namebuf, len)) continue; if (unit == ifp->if_unit) break; } ifnet_head_done(); return (ifp); } /* * Map interface name in a sockaddr_dl to * interface structure pointer. */ struct ifnet * if_withname(struct sockaddr *sa) { char ifname[IFNAMSIZ+1]; struct sockaddr_dl *sdl = (struct sockaddr_dl *)(void *)sa; if ( (sa->sa_family != AF_LINK) || (sdl->sdl_nlen == 0) || (sdl->sdl_nlen > IFNAMSIZ) ) return (NULL); /* * ifunit wants a null-terminated name. It may not be null-terminated * in the sockaddr. We don't want to change the caller's sockaddr, * and there might not be room to put the trailing null anyway, so we * make a local copy that we know we can null terminate safely. */ bcopy(sdl->sdl_data, ifname, sdl->sdl_nlen); ifname[sdl->sdl_nlen] = '\0'; return (ifunit(ifname)); } static __attribute__((noinline)) int ifioctl_ifconf(u_long cmd, caddr_t data) { int error = 0; switch (cmd) { case OSIOCGIFCONF32: /* struct ifconf32 */ case SIOCGIFCONF32: { /* struct ifconf32 */ struct ifconf32 ifc; bcopy(data, &ifc, sizeof (ifc)); error = ifconf(cmd, CAST_USER_ADDR_T(ifc.ifc_req), &ifc.ifc_len); bcopy(&ifc, data, sizeof (ifc)); break; } case SIOCGIFCONF64: /* struct ifconf64 */ case OSIOCGIFCONF64: { /* struct ifconf64 */ struct ifconf64 ifc; bcopy(data, &ifc, sizeof (ifc)); error = ifconf(cmd, ifc.ifc_req, &ifc.ifc_len); bcopy(&ifc, data, sizeof (ifc)); break; } default: VERIFY(0); /* NOTREACHED */ } return (error); } static __attribute__((noinline)) int ifioctl_ifclone(u_long cmd, caddr_t data) { int error = 0; switch (cmd) { case SIOCIFGCLONERS32: { /* struct if_clonereq32 */ struct if_clonereq32 ifcr; bcopy(data, &ifcr, sizeof (ifcr)); error = if_clone_list(ifcr.ifcr_count, &ifcr.ifcr_total, CAST_USER_ADDR_T(ifcr.ifcru_buffer)); bcopy(&ifcr, data, sizeof (ifcr)); break; } case SIOCIFGCLONERS64: { /* struct if_clonereq64 */ struct if_clonereq64 ifcr; bcopy(data, &ifcr, sizeof (ifcr)); error = if_clone_list(ifcr.ifcr_count, &ifcr.ifcr_total, ifcr.ifcru_buffer); bcopy(&ifcr, data, sizeof (ifcr)); break; } default: VERIFY(0); /* NOTREACHED */ } return (error); } static __attribute__((noinline)) int ifioctl_ifdesc(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) { struct if_descreq *ifdr = (struct if_descreq *)(void *)data; u_int32_t ifdr_len; int error = 0; VERIFY(ifp != NULL); switch (cmd) { case SIOCSIFDESC: { /* struct if_descreq */ if ((error = proc_suser(p)) != 0) break; ifnet_lock_exclusive(ifp); bcopy(&ifdr->ifdr_len, &ifdr_len, sizeof (ifdr_len)); if (ifdr_len > sizeof (ifdr->ifdr_desc) || ifdr_len > ifp->if_desc.ifd_maxlen) { error = EINVAL; ifnet_lock_done(ifp); break; } bzero(ifp->if_desc.ifd_desc, ifp->if_desc.ifd_maxlen); if ((ifp->if_desc.ifd_len = ifdr_len) > 0) { bcopy(ifdr->ifdr_desc, ifp->if_desc.ifd_desc, MIN(ifdr_len, ifp->if_desc.ifd_maxlen)); } ifnet_lock_done(ifp); break; } case SIOCGIFDESC: { /* struct if_descreq */ ifnet_lock_shared(ifp); ifdr_len = MIN(ifp->if_desc.ifd_len, sizeof (ifdr->ifdr_desc)); bcopy(&ifdr_len, &ifdr->ifdr_len, sizeof (ifdr_len)); bzero(&ifdr->ifdr_desc, sizeof (ifdr->ifdr_desc)); if (ifdr_len > 0) { bcopy(ifp->if_desc.ifd_desc, ifdr->ifdr_desc, ifdr_len); } ifnet_lock_done(ifp); break; } default: VERIFY(0); /* NOTREACHED */ } return (error); } static __attribute__((noinline)) int ifioctl_linkparams(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) { struct if_linkparamsreq *iflpr = (struct if_linkparamsreq *)(void *)data; struct ifclassq *ifq; int error = 0; VERIFY(ifp != NULL); ifq = &ifp->if_snd; switch (cmd) { case SIOCSIFLINKPARAMS: { /* struct if_linkparamsreq */ struct tb_profile tb = { 0, 0, 0 }; if ((error = proc_suser(p)) != 0) break; IFCQ_LOCK(ifq); if (!IFCQ_IS_READY(ifq)) { error = ENXIO; IFCQ_UNLOCK(ifq); break; } bcopy(&iflpr->iflpr_output_tbr_rate, &tb.rate, sizeof (tb.rate)); bcopy(&iflpr->iflpr_output_tbr_percent, &tb.percent, sizeof (tb.percent)); error = ifclassq_tbr_set(ifq, &tb, TRUE); IFCQ_UNLOCK(ifq); break; } case SIOCGIFLINKPARAMS: { /* struct if_linkparamsreq */ u_int32_t sched_type = PKTSCHEDT_NONE, flags = 0; u_int64_t tbr_bw = 0, tbr_pct = 0; IFCQ_LOCK(ifq); #if PF_ALTQ if (ALTQ_IS_ENABLED(IFCQ_ALTQ(ifq))) { sched_type = IFCQ_ALTQ(ifq)->altq_type; flags |= IFLPRF_ALTQ; } else #endif /* PF_ALTQ */ { if (IFCQ_IS_ENABLED(ifq)) sched_type = ifq->ifcq_type; } bcopy(&sched_type, &iflpr->iflpr_output_sched, sizeof (iflpr->iflpr_output_sched)); if (IFCQ_TBR_IS_ENABLED(ifq)) { tbr_bw = ifq->ifcq_tbr.tbr_rate_raw; tbr_pct = ifq->ifcq_tbr.tbr_percent; } bcopy(&tbr_bw, &iflpr->iflpr_output_tbr_rate, sizeof (iflpr->iflpr_output_tbr_rate)); bcopy(&tbr_pct, &iflpr->iflpr_output_tbr_percent, sizeof (iflpr->iflpr_output_tbr_percent)); IFCQ_UNLOCK(ifq); if (ifp->if_output_sched_model == IFNET_SCHED_MODEL_DRIVER_MANAGED) flags |= IFLPRF_DRVMANAGED; bcopy(&flags, &iflpr->iflpr_flags, sizeof (iflpr->iflpr_flags)); bcopy(&ifp->if_output_bw, &iflpr->iflpr_output_bw, sizeof (iflpr->iflpr_output_bw)); bcopy(&ifp->if_input_bw, &iflpr->iflpr_input_bw, sizeof (iflpr->iflpr_input_bw)); bcopy(&ifp->if_output_lt, &iflpr->iflpr_output_lt, sizeof (iflpr->iflpr_output_lt)); bcopy(&ifp->if_input_lt, &iflpr->iflpr_input_lt, sizeof (iflpr->iflpr_input_lt)); break; } default: VERIFY(0); /* NOTREACHED */ } return (error); } static __attribute__((noinline)) int ifioctl_qstats(struct ifnet *ifp, u_long cmd, caddr_t data) { struct if_qstatsreq *ifqr = (struct if_qstatsreq *)(void *)data; u_int32_t ifqr_len, ifqr_slot; int error = 0; VERIFY(ifp != NULL); switch (cmd) { case SIOCGIFQUEUESTATS: { /* struct if_qstatsreq */ bcopy(&ifqr->ifqr_slot, &ifqr_slot, sizeof (ifqr_slot)); bcopy(&ifqr->ifqr_len, &ifqr_len, sizeof (ifqr_len)); error = ifclassq_getqstats(&ifp->if_snd, ifqr_slot, ifqr->ifqr_buf, &ifqr_len); if (error != 0) ifqr_len = 0; bcopy(&ifqr_len, &ifqr->ifqr_len, sizeof (ifqr_len)); break; } default: VERIFY(0); /* NOTREACHED */ } return (error); } static __attribute__((noinline)) int ifioctl_throttle(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) { struct if_throttlereq *ifthr = (struct if_throttlereq *)(void *)data; u_int32_t ifthr_level; int error = 0; VERIFY(ifp != NULL); switch (cmd) { case SIOCSIFTHROTTLE: { /* struct if_throttlereq */ /* * XXX: Use priv_check_cred() instead of root check? */ if ((error = proc_suser(p)) != 0) break; bcopy(&ifthr->ifthr_level, &ifthr_level, sizeof (ifthr_level)); error = ifnet_set_throttle(ifp, ifthr_level); if (error == EALREADY) error = 0; break; } case SIOCGIFTHROTTLE: { /* struct if_throttlereq */ if ((error = ifnet_get_throttle(ifp, &ifthr_level)) == 0) { bcopy(&ifthr_level, &ifthr->ifthr_level, sizeof (ifthr_level)); } break; } default: VERIFY(0); /* NOTREACHED */ } return (error); } /* * Interface ioctls. * * Most of the routines called to handle the ioctls would end up being * tail-call optimized, which unfortunately causes this routine to * consume too much stack space; this is the reason for the "noinline" * attribute used on those routines. */ int ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p) { char ifname[IFNAMSIZ + 1]; struct ifnet *ifp = NULL; struct ifstat *ifs = NULL; int error = 0; bzero(ifname, sizeof (ifname)); /* * ioctls which don't require ifp, or ifreq ioctls */ switch (cmd) { case OSIOCGIFCONF32: /* struct ifconf32 */ case SIOCGIFCONF32: /* struct ifconf32 */ case SIOCGIFCONF64: /* struct ifconf64 */ case OSIOCGIFCONF64: /* struct ifconf64 */ error = ifioctl_ifconf(cmd, data); goto done; case SIOCIFGCLONERS32: /* struct if_clonereq32 */ case SIOCIFGCLONERS64: /* struct if_clonereq64 */ error = ifioctl_ifclone(cmd, data); goto done; case SIOCSIFDSTADDR: /* struct ifreq */ case SIOCSIFADDR: /* struct ifreq */ case SIOCSIFBRDADDR: /* struct ifreq */ case SIOCSIFNETMASK: /* struct ifreq */ case OSIOCGIFADDR: /* struct ifreq */ case OSIOCGIFDSTADDR: /* struct ifreq */ case OSIOCGIFBRDADDR: /* struct ifreq */ case OSIOCGIFNETMASK: /* struct ifreq */ case SIOCSIFKPI: /* struct ifreq */ if (so->so_proto == NULL) { error = EOPNOTSUPP; goto done; } /* FALLTHRU */ case SIOCIFCREATE: /* struct ifreq */ case SIOCIFCREATE2: /* struct ifreq */ case SIOCIFDESTROY: /* struct ifreq */ case SIOCGIFFLAGS: /* struct ifreq */ case SIOCGIFEFLAGS: /* struct ifreq */ case SIOCGIFCAP: /* struct ifreq */ #if CONFIG_MACF_NET case SIOCGIFMAC: /* struct ifreq */ case SIOCSIFMAC: /* struct ifreq */ #endif /* CONFIG_MACF_NET */ case SIOCGIFMETRIC: /* struct ifreq */ case SIOCGIFMTU: /* struct ifreq */ case SIOCGIFPHYS: /* struct ifreq */ case SIOCSIFFLAGS: /* struct ifreq */ case SIOCSIFCAP: /* struct ifreq */ case SIOCSIFMETRIC: /* struct ifreq */ case SIOCSIFPHYS: /* struct ifreq */ case SIOCSIFMTU: /* struct ifreq */ case SIOCADDMULTI: /* struct ifreq */ case SIOCDELMULTI: /* struct ifreq */ case SIOCDIFPHYADDR: /* struct ifreq */ case SIOCSIFMEDIA: /* struct ifreq */ case SIOCSIFGENERIC: /* struct ifreq */ case SIOCSIFLLADDR: /* struct ifreq */ case SIOCSIFALTMTU: /* struct ifreq */ case SIOCSIFVLAN: /* struct ifreq */ case SIOCSIFBOND: /* struct ifreq */ case SIOCGIFLLADDR: /* struct ifreq */ case SIOCGIFTYPE: /* struct ifreq */ case SIOCGIFPSRCADDR: /* struct ifreq */ case SIOCGIFPDSTADDR: /* struct ifreq */ case SIOCGIFGENERIC: /* struct ifreq */ case SIOCGIFDEVMTU: /* struct ifreq */ case SIOCGIFVLAN: /* struct ifreq */ case SIOCGIFBOND: /* struct ifreq */ case SIOCGIFWAKEFLAGS: /* struct ifreq */ case SIOCGIFGETRTREFCNT: /* struct ifreq */ case SIOCSIFOPPORTUNISTIC: /* struct ifreq */ case SIOCGIFOPPORTUNISTIC: /* struct ifreq */ case SIOCGIFLINKQUALITYMETRIC: /* struct ifreq */ case SIOCSIFLOG: /* struct ifreq */ case SIOCGIFLOG: /* struct ifreq */ case SIOCGIFDELEGATE: /* struct ifreq */ case SIOCGIFEXPENSIVE: /* struct ifreq */ case SIOCSIFEXPENSIVE: /* struct ifreq */ case SIOCSIF2KCL: /* struct ifreq */ case SIOCGIF2KCL: { /* struct ifreq */ struct ifreq ifr; bcopy(data, &ifr, sizeof (ifr)); ifr.ifr_name[IFNAMSIZ - 1] = '\0'; bcopy(&ifr.ifr_name, ifname, IFNAMSIZ); error = ifioctl_ifreq(so, cmd, &ifr, p); bcopy(&ifr, data, sizeof (ifr)); goto done; } } /* * ioctls which require ifp. Note that we acquire dlil_ifnet_lock * here to ensure that the ifnet, if found, has been fully attached. */ dlil_if_lock(); switch (cmd) { case SIOCSIFPHYADDR: /* struct {if,in_}aliasreq */ bcopy(((struct in_aliasreq *)(void *)data)->ifra_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; #if INET6 case SIOCSIFPHYADDR_IN6_32: /* struct in6_aliasreq_32 */ bcopy(((struct in6_aliasreq_32 *)(void *)data)->ifra_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; case SIOCSIFPHYADDR_IN6_64: /* struct in6_aliasreq_64 */ bcopy(((struct in6_aliasreq_64 *)(void *)data)->ifra_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; #endif /* INET6 */ case SIOCGIFSTATUS: /* struct ifstat */ ifs = _MALLOC(sizeof (*ifs), M_DEVBUF, M_WAITOK); if (ifs == NULL) { error = ENOMEM; dlil_if_unlock(); goto done; } bcopy(data, ifs, sizeof (*ifs)); ifs->ifs_name[IFNAMSIZ - 1] = '\0'; bcopy(ifs->ifs_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; case SIOCGIFMEDIA32: /* struct ifmediareq32 */ bcopy(((struct ifmediareq32 *)(void *)data)->ifm_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; case SIOCGIFMEDIA64: /* struct ifmediareq64 */ bcopy(((struct ifmediareq64 *)(void *)data)->ifm_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; case SIOCSIFDESC: /* struct if_descreq */ case SIOCGIFDESC: /* struct if_descreq */ bcopy(((struct if_descreq *)(void *)data)->ifdr_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; case SIOCSIFLINKPARAMS: /* struct if_linkparamsreq */ case SIOCGIFLINKPARAMS: /* struct if_linkparamsreq */ bcopy(((struct if_linkparamsreq *)(void *)data)->iflpr_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; case SIOCGIFQUEUESTATS: /* struct if_qstatsreq */ bcopy(((struct if_qstatsreq *)(void *)data)->ifqr_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; case SIOCSIFTHROTTLE: /* struct if_throttlereq */ case SIOCGIFTHROTTLE: /* struct if_throttlereq */ bcopy(((struct if_throttlereq *)(void *)data)->ifthr_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; default: /* * This is a bad assumption, but the code seems to * have been doing this in the past; caveat emptor. */ bcopy(((struct ifreq *)(void *)data)->ifr_name, ifname, IFNAMSIZ); ifp = ifunit(ifname); break; } dlil_if_unlock(); if (ifp == NULL) { error = ENXIO; goto done; } switch (cmd) { case SIOCSIFPHYADDR: /* struct {if,in_}aliasreq */ #if INET6 case SIOCSIFPHYADDR_IN6_32: /* struct in6_aliasreq_32 */ case SIOCSIFPHYADDR_IN6_64: /* struct in6_aliasreq_64 */ #endif /* INET6 */ error = proc_suser(p); if (error != 0) break; error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, data); if (error != 0) break; ifnet_touch_lastchange(ifp); break; case SIOCGIFSTATUS: /* struct ifstat */ VERIFY(ifs != NULL); ifs->ascii[0] = '\0'; error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifs); bcopy(ifs, data, sizeof (*ifs)); break; case SIOCGIFMEDIA32: /* struct ifmediareq32 */ case SIOCGIFMEDIA64: /* struct ifmediareq64 */ error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, data); break; case SIOCSIFDESC: /* struct if_descreq */ case SIOCGIFDESC: /* struct if_descreq */ error = ifioctl_ifdesc(ifp, cmd, data, p); break; case SIOCSIFLINKPARAMS: /* struct if_linkparamsreq */ case SIOCGIFLINKPARAMS: /* struct if_linkparamsreq */ error = ifioctl_linkparams(ifp, cmd, data, p); break; case SIOCGIFQUEUESTATS: /* struct if_qstatsreq */ error = ifioctl_qstats(ifp, cmd, data); break; case SIOCSIFTHROTTLE: /* struct if_throttlereq */ case SIOCGIFTHROTTLE: /* struct if_throttlereq */ error = ifioctl_throttle(ifp, cmd, data, p); break; default: if (so->so_proto == NULL) { error = EOPNOTSUPP; break; } socket_lock(so, 1); error = ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, ifp, p)); socket_unlock(so, 1); if (error == EOPNOTSUPP || error == ENOTSUP) { error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, data); } break; } done: if (ifs != NULL) _FREE(ifs, M_DEVBUF); if (if_verbose) { if (ifname[0] == '\0') (void) snprintf(ifname, sizeof (ifname), "%s", "NULL"); else if (ifp != NULL) (void) snprintf(ifname, sizeof (ifname), "%s", if_name(ifp)); if (error != 0) { printf("%s[%s,%d]: ifp %s cmd 0x%08lx (%c%c [%lu] " "%c %lu) error %d\n", __func__, proc_name_address(p), proc_pid(p), ifname, cmd, (cmd & IOC_IN) ? 'I' : ' ', (cmd & IOC_OUT) ? 'O' : ' ', IOCPARM_LEN(cmd), (char)IOCGROUP(cmd), cmd & 0xff, error); } else if (if_verbose > 1) { printf("%s[%s,%d]: ifp %s cmd 0x%08lx (%c%c [%lu] " "%c %lu) OK\n", __func__, proc_name_address(p), proc_pid(p), ifname, cmd, (cmd & IOC_IN) ? 'I' : ' ', (cmd & IOC_OUT) ? 'O' : ' ', IOCPARM_LEN(cmd), (char)IOCGROUP(cmd), cmd & 0xff); } } return (error); } static __attribute__((noinline)) int ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) { struct ifnet *ifp; u_long ocmd = cmd; int error = 0; struct kev_msg ev_msg; struct net_event_data ev_data; bzero(&ev_data, sizeof (struct net_event_data)); bzero(&ev_msg, sizeof (struct kev_msg)); switch (cmd) { case SIOCIFCREATE: case SIOCIFCREATE2: error = proc_suser(p); if (error) return (error); return (if_clone_create(ifr->ifr_name, sizeof(ifr->ifr_name), cmd == SIOCIFCREATE2 ? ifr->ifr_data : NULL)); case SIOCIFDESTROY: error = proc_suser(p); if (error) return (error); return (if_clone_destroy(ifr->ifr_name)); } /* * ioctls which require ifp. Note that we acquire dlil_ifnet_lock * here to ensure that the ifnet, if found, has been fully attached. */ dlil_if_lock(); ifp = ifunit(ifr->ifr_name); dlil_if_unlock(); if (ifp == NULL) return (ENXIO); switch (cmd) { case SIOCGIFFLAGS: ifnet_lock_shared(ifp); ifr->ifr_flags = ifp->if_flags; ifnet_lock_done(ifp); break; case SIOCGIFEFLAGS: ifnet_lock_shared(ifp); ifr->ifr_eflags = ifp->if_eflags; ifnet_lock_done(ifp); break; case SIOCGIFCAP: ifnet_lock_shared(ifp); ifr->ifr_reqcap = ifp->if_capabilities; ifr->ifr_curcap = ifp->if_capenable; ifnet_lock_done(ifp); break; #if CONFIG_MACF_NET case SIOCGIFMAC: error = mac_ifnet_label_get(kauth_cred_get(), ifr, ifp); break; case SIOCSIFMAC: error = mac_ifnet_label_set(kauth_cred_get(), ifr, ifp); break; #endif /* CONFIG_MACF_NET */ case SIOCGIFMETRIC: ifnet_lock_shared(ifp); ifr->ifr_metric = ifp->if_metric; ifnet_lock_done(ifp); break; case SIOCGIFMTU: ifnet_lock_shared(ifp); ifr->ifr_mtu = ifp->if_mtu; ifnet_lock_done(ifp); break; case SIOCGIFPHYS: ifnet_lock_shared(ifp); ifr->ifr_phys = ifp->if_physical; ifnet_lock_done(ifp); break; case SIOCSIFFLAGS: error = proc_suser(p); if (error != 0) break; (void) ifnet_set_flags(ifp, ifr->ifr_flags, (u_int16_t)~IFF_CANTCHANGE); /* * Note that we intentionally ignore any error from below * for the SIOCSIFFLAGS case. */ (void) ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); /* * Send the event even upon error from the driver because * we changed the flags. */ ev_msg.vendor_code = KEV_VENDOR_APPLE; ev_msg.kev_class = KEV_NETWORK_CLASS; ev_msg.kev_subclass = KEV_DL_SUBCLASS; ev_msg.event_code = KEV_DL_SIFFLAGS; strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ); ev_data.if_family = ifp->if_family; ev_data.if_unit = (u_int32_t) ifp->if_unit; ev_msg.dv[0].data_length = sizeof(struct net_event_data); ev_msg.dv[0].data_ptr = &ev_data; ev_msg.dv[1].data_length = 0; kev_post_msg(&ev_msg); ifnet_touch_lastchange(ifp); break; case SIOCSIFCAP: error = proc_suser(p); if (error != 0) break; if ((ifr->ifr_reqcap & ~ifp->if_capabilities)) { error = EINVAL; break; } error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); ifnet_touch_lastchange(ifp); break; case SIOCSIFMETRIC: error = proc_suser(p); if (error != 0) break; ifp->if_metric = ifr->ifr_metric; ev_msg.vendor_code = KEV_VENDOR_APPLE; ev_msg.kev_class = KEV_NETWORK_CLASS; ev_msg.kev_subclass = KEV_DL_SUBCLASS; ev_msg.event_code = KEV_DL_SIFMETRICS; strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ); ev_data.if_family = ifp->if_family; ev_data.if_unit = (u_int32_t) ifp->if_unit; ev_msg.dv[0].data_length = sizeof(struct net_event_data); ev_msg.dv[0].data_ptr = &ev_data; ev_msg.dv[1].data_length = 0; kev_post_msg(&ev_msg); ifnet_touch_lastchange(ifp); break; case SIOCSIFPHYS: error = proc_suser(p); if (error != 0) break; error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); if (error != 0) break; ev_msg.vendor_code = KEV_VENDOR_APPLE; ev_msg.kev_class = KEV_NETWORK_CLASS; ev_msg.kev_subclass = KEV_DL_SUBCLASS; ev_msg.event_code = KEV_DL_SIFPHYS; strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ); ev_data.if_family = ifp->if_family; ev_data.if_unit = (u_int32_t) ifp->if_unit; ev_msg.dv[0].data_length = sizeof(struct net_event_data); ev_msg.dv[0].data_ptr = &ev_data; ev_msg.dv[1].data_length = 0; kev_post_msg(&ev_msg); ifnet_touch_lastchange(ifp); break; case SIOCSIFMTU: { u_int32_t oldmtu = ifp->if_mtu; struct ifclassq *ifq = &ifp->if_snd; error = proc_suser(p); if (error != 0) break; if (ifp->if_ioctl == NULL) { error = EOPNOTSUPP; break; } if (ifr->ifr_mtu < IF_MINMTU || ifr->ifr_mtu > IF_MAXMTU) { error = EINVAL; break; } error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); if (error != 0) break; ev_msg.vendor_code = KEV_VENDOR_APPLE; ev_msg.kev_class = KEV_NETWORK_CLASS; ev_msg.kev_subclass = KEV_DL_SUBCLASS; ev_msg.event_code = KEV_DL_SIFMTU; strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ); ev_data.if_family = ifp->if_family; ev_data.if_unit = (u_int32_t) ifp->if_unit; ev_msg.dv[0].data_length = sizeof(struct net_event_data); ev_msg.dv[0].data_ptr = &ev_data; ev_msg.dv[1].data_length = 0; kev_post_msg(&ev_msg); ifnet_touch_lastchange(ifp); rt_ifmsg(ifp); /* * If the link MTU changed, do network layer specific procedure * and update all route entries associated with the interface, * so that their MTU metric gets updated. */ if (ifp->if_mtu != oldmtu) { if_rtmtu_update(ifp); #if INET6 nd6_setmtu(ifp); #endif /* INET6 */ /* Inform all transmit queues about the new MTU */ IFCQ_LOCK(ifq); ifnet_update_sndq(ifq, CLASSQ_EV_LINK_MTU); IFCQ_UNLOCK(ifq); } break; } case SIOCADDMULTI: case SIOCDELMULTI: error = proc_suser(p); if (error != 0) break; /* Don't allow group membership on non-multicast interfaces. */ if ((ifp->if_flags & IFF_MULTICAST) == 0) { error = EOPNOTSUPP; break; } /* Don't let users screw up protocols' entries. */ if (ifr->ifr_addr.sa_family != AF_UNSPEC && ifr->ifr_addr.sa_family != AF_LINK) { error = EINVAL; break; } /* * User is permitted to anonymously join a particular link * multicast group via SIOCADDMULTI. Subsequent join requested * for the same record which has an outstanding refcnt from a * past if_addmulti_anon() will not result in EADDRINUSE error * (unlike other BSDs.) Anonymously leaving a group is also * allowed only as long as there is an outstanding refcnt held * by a previous anonymous request, or else ENOENT (even if the * link-layer multicast membership exists for a network-layer * membership.) */ if (cmd == SIOCADDMULTI) { error = if_addmulti_anon(ifp, &ifr->ifr_addr, NULL); ev_msg.event_code = KEV_DL_ADDMULTI; } else { error = if_delmulti_anon(ifp, &ifr->ifr_addr); ev_msg.event_code = KEV_DL_DELMULTI; } if (error != 0) break; ev_msg.vendor_code = KEV_VENDOR_APPLE; ev_msg.kev_class = KEV_NETWORK_CLASS; ev_msg.kev_subclass = KEV_DL_SUBCLASS; strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ); ev_data.if_family = ifp->if_family; ev_data.if_unit = (u_int32_t) ifp->if_unit; ev_msg.dv[0].data_length = sizeof(struct net_event_data); ev_msg.dv[0].data_ptr = &ev_data; ev_msg.dv[1].data_length = 0; kev_post_msg(&ev_msg); ifnet_touch_lastchange(ifp); break; case SIOCDIFPHYADDR: case SIOCSIFMEDIA: case SIOCSIFGENERIC: case SIOCSIFLLADDR: case SIOCSIFALTMTU: case SIOCSIFVLAN: case SIOCSIFBOND: error = proc_suser(p); if (error != 0) break; error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); if (error != 0) break; ifnet_touch_lastchange(ifp); break; case SIOCGIFLLADDR: { struct sockaddr_dl *sdl = SDL(ifp->if_lladdr->ifa_addr); if (sdl->sdl_alen == 0) { error = EADDRNOTAVAIL; break; } /* If larger than 14-bytes we'll need another mechanism */ if (sdl->sdl_alen > sizeof (ifr->ifr_addr.sa_data)) { error = EMSGSIZE; break; } /* Follow the same convention used by SIOCSIFLLADDR */ bzero(&ifr->ifr_addr, sizeof (ifr->ifr_addr)); ifr->ifr_addr.sa_family = AF_LINK; ifr->ifr_addr.sa_len = sdl->sdl_alen; error = ifnet_guarded_lladdr_copy_bytes(ifp, &ifr->ifr_addr.sa_data, sdl->sdl_alen); break; } case SIOCGIFTYPE: ifr->ifr_type.ift_type = ifp->if_type; ifr->ifr_type.ift_family = ifp->if_family; ifr->ifr_type.ift_subfamily = ifp->if_subfamily; break; case SIOCGIFPSRCADDR: case SIOCGIFPDSTADDR: case SIOCGIFGENERIC: case SIOCGIFDEVMTU: case SIOCGIFVLAN: case SIOCGIFBOND: error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); break; case SIOCGIFWAKEFLAGS: ifnet_lock_shared(ifp); ifr->ifr_wake_flags = ifnet_get_wake_flags(ifp); ifnet_lock_done(ifp); break; case SIOCGIFGETRTREFCNT: ifnet_lock_shared(ifp); ifr->ifr_route_refcnt = ifp->if_route_refcnt; ifnet_lock_done(ifp); break; case SIOCSIFOPPORTUNISTIC: case SIOCGIFOPPORTUNISTIC: error = ifnet_getset_opportunistic(ifp, cmd, ifr, p); break; case SIOCGIFLINKQUALITYMETRIC: ifnet_lock_shared(ifp); ifr->ifr_link_quality_metric = ifp->if_lqm; ifnet_lock_done(ifp); break; case SIOCSIFLOG: case SIOCGIFLOG: error = ifnet_getset_log(ifp, cmd, ifr, p); break; case SIOCGIFDELEGATE: ifnet_lock_shared(ifp); ifr->ifr_delegated = ((ifp->if_delegated.ifp != NULL) ? ifp->if_delegated.ifp->if_index : 0); ifnet_lock_done(ifp); break; case SIOCGIFEXPENSIVE: ifnet_lock_shared(ifp); if (ifp->if_eflags & IFEF_EXPENSIVE) ifr->ifr_expensive = 1; else ifr->ifr_expensive = 0; ifnet_lock_done(ifp); break; case SIOCSIFEXPENSIVE: { struct ifnet *difp; if ((error = priv_check_cred(kauth_cred_get(), PRIV_NET_INTERFACE_CONTROL, 0)) != 0) return (error); ifnet_lock_exclusive(ifp); if (ifr->ifr_expensive) ifp->if_eflags |= IFEF_EXPENSIVE; else ifp->if_eflags &= ~IFEF_EXPENSIVE; ifnet_lock_done(ifp); /* * Update the expensive bit in the delegated interface * structure. */ ifnet_head_lock_shared(); TAILQ_FOREACH(difp, &ifnet_head, if_link) { ifnet_lock_exclusive(difp); if (difp->if_delegated.ifp == ifp) { difp->if_delegated.expensive = ifp->if_eflags & IFEF_EXPENSIVE ? 1 : 0; } ifnet_lock_done(difp); } ifnet_head_done(); break; } case SIOCGIF2KCL: ifnet_lock_shared(ifp); if (ifp->if_eflags & IFEF_2KCL) ifr->ifr_2kcl = 1; else ifr->ifr_2kcl = 0; ifnet_lock_done(ifp); break; case SIOCSIF2KCL: if ((error = priv_check_cred(kauth_cred_get(), PRIV_NET_INTERFACE_CONTROL, 0)) != 0) return (error); ifnet_lock_exclusive(ifp); if (ifr->ifr_2kcl) ifp->if_eflags |= IFEF_2KCL; else ifp->if_eflags &= ~IFEF_2KCL; ifnet_lock_done(ifp); break; case SIOCSIFDSTADDR: case SIOCSIFADDR: case SIOCSIFBRDADDR: case SIOCSIFNETMASK: case OSIOCGIFADDR: case OSIOCGIFDSTADDR: case OSIOCGIFBRDADDR: case OSIOCGIFNETMASK: case SIOCSIFKPI: VERIFY(so->so_proto != NULL); if (cmd == SIOCSIFDSTADDR || cmd == SIOCSIFADDR || cmd == SIOCSIFBRDADDR || cmd == SIOCSIFNETMASK) { #if BYTE_ORDER != BIG_ENDIAN if (ifr->ifr_addr.sa_family == 0 && ifr->ifr_addr.sa_len < 16) { ifr->ifr_addr.sa_family = ifr->ifr_addr.sa_len; ifr->ifr_addr.sa_len = 16; } #else if (ifr->ifr_addr.sa_len == 0) ifr->ifr_addr.sa_len = 16; #endif } else if (cmd == OSIOCGIFADDR) { cmd = SIOCGIFADDR; /* struct ifreq */ } else if (cmd == OSIOCGIFDSTADDR) { cmd = SIOCGIFDSTADDR; /* struct ifreq */ } else if (cmd == OSIOCGIFBRDADDR) { cmd = SIOCGIFBRDADDR; /* struct ifreq */ } else if (cmd == OSIOCGIFNETMASK) { cmd = SIOCGIFNETMASK; /* struct ifreq */ } socket_lock(so, 1); error = ((*so->so_proto->pr_usrreqs->pru_control)(so, cmd, (caddr_t)ifr, ifp, p)); socket_unlock(so, 1); switch (ocmd) { case OSIOCGIFADDR: case OSIOCGIFDSTADDR: case OSIOCGIFBRDADDR: case OSIOCGIFNETMASK: bcopy(&ifr->ifr_addr.sa_family, &ifr->ifr_addr, sizeof (u_short)); } if (cmd == SIOCSIFKPI) { int temperr = proc_suser(p); if (temperr != 0) error = temperr; } if (error == EOPNOTSUPP || error == ENOTSUP) { error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); } break; default: VERIFY(0); /* NOTREACHED */ } return (error); } int ifioctllocked(struct socket *so, u_long cmd, caddr_t data, struct proc *p) { int error; socket_unlock(so, 0); error = ifioctl(so, cmd, data, p); socket_lock(so, 0); return(error); } /* * Set/clear promiscuous mode on interface ifp based on the truth value * of pswitch. The calls are reference counted so that only the first * "on" request actually has an effect, as does the final "off" request. * Results are undefined if the "off" and "on" requests are not matched. */ errno_t ifnet_set_promiscuous( ifnet_t ifp, int pswitch) { int error = 0; int oldflags = 0; int newflags = 0; ifnet_lock_exclusive(ifp); oldflags = ifp->if_flags; ifp->if_pcount += pswitch ? 1 : -1; if (ifp->if_pcount > 0) ifp->if_flags |= IFF_PROMISC; else ifp->if_flags &= ~IFF_PROMISC; newflags = ifp->if_flags; ifnet_lock_done(ifp); if (newflags != oldflags && (newflags & IFF_UP) != 0) { error = ifnet_ioctl(ifp, 0, SIOCSIFFLAGS, NULL); if (error == 0) { rt_ifmsg(ifp); } else { ifnet_lock_exclusive(ifp); // revert the flags ifp->if_pcount -= pswitch ? 1 : -1; if (ifp->if_pcount > 0) ifp->if_flags |= IFF_PROMISC; else ifp->if_flags &= ~IFF_PROMISC; ifnet_lock_done(ifp); } } if (newflags != oldflags) { log(LOG_INFO, "%s: promiscuous mode %s%s\n", if_name(ifp), (newflags & IFF_PROMISC) != 0 ? "enable" : "disable", error != 0 ? " failed" : " succeeded"); } return error; } /* * Return interface configuration * of system. List may be used * in later ioctl's (above) to get * other information. */ /*ARGSUSED*/ static int ifconf(u_long cmd, user_addr_t ifrp, int *ret_space) { struct ifnet *ifp = NULL; struct ifaddr *ifa; struct ifreq ifr; int error = 0; size_t space; net_thread_marks_t marks; marks = net_thread_marks_push(NET_THREAD_CKREQ_LLADDR); /* * Zero the ifr buffer to make sure we don't * disclose the contents of the stack. */ bzero(&ifr, sizeof (struct ifreq)); space = *ret_space; ifnet_head_lock_shared(); for (ifp = ifnet_head.tqh_first; space > sizeof (ifr) && ifp; ifp = ifp->if_link.tqe_next) { char workbuf[64]; size_t ifnlen, addrs; ifnlen = snprintf(workbuf, sizeof (workbuf), "%s", if_name(ifp)); if (ifnlen + 1 > sizeof (ifr.ifr_name)) { error = ENAMETOOLONG; break; } else { strlcpy(ifr.ifr_name, workbuf, IFNAMSIZ); } ifnet_lock_shared(ifp); addrs = 0; ifa = ifp->if_addrhead.tqh_first; for (; space > sizeof (ifr) && ifa; ifa = ifa->ifa_link.tqe_next) { struct sockaddr *sa; union { struct sockaddr sa; struct sockaddr_dl sdl; uint8_t buf[SOCK_MAXADDRLEN + 1]; } u; /* * Make sure to accomodate the largest possible * size of SA(if_lladdr)->sa_len. */ _CASSERT(sizeof (u) == (SOCK_MAXADDRLEN + 1)); IFA_LOCK(ifa); sa = ifa->ifa_addr; addrs++; if (ifa == ifp->if_lladdr) { VERIFY(sa->sa_family == AF_LINK); bcopy(sa, &u, sa->sa_len); IFA_UNLOCK(ifa); ifnet_guarded_lladdr_copy_bytes(ifp, LLADDR(&u.sdl), u.sdl.sdl_alen); IFA_LOCK(ifa); sa = &u.sa; } if (cmd == OSIOCGIFCONF32 || cmd == OSIOCGIFCONF64) { struct osockaddr *osa = (struct osockaddr *)(void *)&ifr.ifr_addr; ifr.ifr_addr = *sa; osa->sa_family = sa->sa_family; error = copyout((caddr_t)&ifr, ifrp, sizeof (ifr)); ifrp += sizeof (struct ifreq); } else if (sa->sa_len <= sizeof (*sa)) { ifr.ifr_addr = *sa; error = copyout((caddr_t)&ifr, ifrp, sizeof (ifr)); ifrp += sizeof (struct ifreq); } else { if (space < sizeof (ifr) + sa->sa_len - sizeof (*sa)) { IFA_UNLOCK(ifa); break; } space -= sa->sa_len - sizeof (*sa); error = copyout((caddr_t)&ifr, ifrp, sizeof (ifr.ifr_name)); if (error == 0) { error = copyout((caddr_t)sa, (ifrp + offsetof(struct ifreq, ifr_addr)), sa->sa_len); } ifrp += (sa->sa_len + offsetof(struct ifreq, ifr_addr)); } IFA_UNLOCK(ifa); if (error) break; space -= sizeof (ifr); } ifnet_lock_done(ifp); if (error) break; if (!addrs) { bzero((caddr_t)&ifr.ifr_addr, sizeof (ifr.ifr_addr)); error = copyout((caddr_t)&ifr, ifrp, sizeof (ifr)); if (error) break; space -= sizeof (ifr); ifrp += sizeof (struct ifreq); } } ifnet_head_done(); *ret_space -= space; net_thread_marks_pop(marks); return (error); } /* * Just like if_promisc(), but for all-multicast-reception mode. */ int if_allmulti(struct ifnet *ifp, int onswitch) { int error = 0; int modified = 0; ifnet_lock_exclusive(ifp); if (onswitch) { if (ifp->if_amcount++ == 0) { ifp->if_flags |= IFF_ALLMULTI; modified = 1; } } else { if (ifp->if_amcount > 1) { ifp->if_amcount--; } else { ifp->if_amcount = 0; ifp->if_flags &= ~IFF_ALLMULTI; modified = 1; } } ifnet_lock_done(ifp); if (modified) error = ifnet_ioctl(ifp, 0, SIOCSIFFLAGS, NULL); if (error == 0) rt_ifmsg(ifp); return error; } static struct ifmultiaddr * ifma_alloc(int how) { struct ifmultiaddr *ifma; ifma = (how == M_WAITOK) ? zalloc(ifma_zone) : zalloc_noblock(ifma_zone); if (ifma != NULL) { bzero(ifma, ifma_size); lck_mtx_init(&ifma->ifma_lock, ifa_mtx_grp, ifa_mtx_attr); ifma->ifma_debug |= IFD_ALLOC; if (ifma_debug != 0) { ifma->ifma_debug |= IFD_DEBUG; ifma->ifma_trace = ifma_trace; } } return (ifma); } static void ifma_free(struct ifmultiaddr *ifma) { IFMA_LOCK(ifma); if (ifma->ifma_protospec != NULL) { panic("%s: Protospec not NULL for ifma=%p", __func__, ifma); /* NOTREACHED */ } else if ((ifma->ifma_flags & IFMAF_ANONYMOUS) || ifma->ifma_anoncnt != 0) { panic("%s: Freeing ifma=%p with outstanding anon req", __func__, ifma); /* NOTREACHED */ } else if (ifma->ifma_debug & IFD_ATTACHED) { panic("%s: ifma=%p attached to ifma_ifp=%p is being freed", __func__, ifma, ifma->ifma_ifp); /* NOTREACHED */ } else if (!(ifma->ifma_debug & IFD_ALLOC)) { panic("%s: ifma %p cannot be freed", __func__, ifma); /* NOTREACHED */ } else if (ifma->ifma_refcount != 0) { panic("%s: non-zero refcount ifma=%p", __func__, ifma); /* NOTREACHED */ } else if (ifma->ifma_reqcnt != 0) { panic("%s: non-zero reqcnt ifma=%p", __func__, ifma); /* NOTREACHED */ } else if (ifma->ifma_ifp != NULL) { panic("%s: non-NULL ifma_ifp=%p for ifma=%p", __func__, ifma->ifma_ifp, ifma); /* NOTREACHED */ } else if (ifma->ifma_ll != NULL) { panic("%s: non-NULL ifma_ll=%p for ifma=%p", __func__, ifma->ifma_ll, ifma); /* NOTREACHED */ } ifma->ifma_debug &= ~IFD_ALLOC; if ((ifma->ifma_debug & (IFD_DEBUG | IFD_TRASHED)) == (IFD_DEBUG | IFD_TRASHED)) { lck_mtx_lock(&ifma_trash_lock); TAILQ_REMOVE(&ifma_trash_head, (struct ifmultiaddr_dbg *)ifma, ifma_trash_link); lck_mtx_unlock(&ifma_trash_lock); ifma->ifma_debug &= ~IFD_TRASHED; } IFMA_UNLOCK(ifma); if (ifma->ifma_addr != NULL) { FREE(ifma->ifma_addr, M_IFADDR); ifma->ifma_addr = NULL; } lck_mtx_destroy(&ifma->ifma_lock, ifa_mtx_grp); zfree(ifma_zone, ifma); } static void ifma_trace(struct ifmultiaddr *ifma, int refhold) { struct ifmultiaddr_dbg *ifma_dbg = (struct ifmultiaddr_dbg *)ifma; ctrace_t *tr; u_int32_t idx; u_int16_t *cnt; if (!(ifma->ifma_debug & IFD_DEBUG)) { panic("%s: ifma %p has no debug structure", __func__, ifma); /* NOTREACHED */ } if (refhold) { cnt = &ifma_dbg->ifma_refhold_cnt; tr = ifma_dbg->ifma_refhold; } else { cnt = &ifma_dbg->ifma_refrele_cnt; tr = ifma_dbg->ifma_refrele; } idx = atomic_add_16_ov(cnt, 1) % IFMA_TRACE_HIST_SIZE; ctrace_record(&tr[idx]); } void ifma_addref(struct ifmultiaddr *ifma, int locked) { if (!locked) IFMA_LOCK(ifma); else IFMA_LOCK_ASSERT_HELD(ifma); if (++ifma->ifma_refcount == 0) { panic("%s: ifma=%p wraparound refcnt", __func__, ifma); /* NOTREACHED */ } else if (ifma->ifma_trace != NULL) { (*ifma->ifma_trace)(ifma, TRUE); } if (!locked) IFMA_UNLOCK(ifma); } void ifma_remref(struct ifmultiaddr *ifma) { struct ifmultiaddr *ll; IFMA_LOCK(ifma); if (ifma->ifma_refcount == 0) { panic("%s: ifma=%p negative refcnt", __func__, ifma); /* NOTREACHED */ } else if (ifma->ifma_trace != NULL) { (*ifma->ifma_trace)(ifma, FALSE); } --ifma->ifma_refcount; if (ifma->ifma_refcount > 0) { IFMA_UNLOCK(ifma); return; } ll = ifma->ifma_ll; ifma->ifma_ifp = NULL; ifma->ifma_ll = NULL; IFMA_UNLOCK(ifma); ifma_free(ifma); /* deallocate it */ if (ll != NULL) IFMA_REMREF(ll); } static void if_attach_ifma(struct ifnet *ifp, struct ifmultiaddr *ifma, int anon) { ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_EXCLUSIVE); IFMA_LOCK_ASSERT_HELD(ifma); if (ifma->ifma_ifp != ifp) { panic("%s: Mismatch ifma_ifp=%p != ifp=%p", __func__, ifma->ifma_ifp, ifp); /* NOTREACHED */ } else if (ifma->ifma_debug & IFD_ATTACHED) { panic("%s: Attempt to attach an already attached ifma=%p", __func__, ifma); /* NOTREACHED */ } else if (anon && (ifma->ifma_flags & IFMAF_ANONYMOUS)) { panic("%s: ifma=%p unexpected IFMAF_ANONYMOUS", __func__, ifma); /* NOTREACHED */ } else if (ifma->ifma_debug & IFD_TRASHED) { panic("%s: Attempt to reattach a detached ifma=%p", __func__, ifma); /* NOTREACHED */ } ifma->ifma_reqcnt++; VERIFY(ifma->ifma_reqcnt == 1); IFMA_ADDREF_LOCKED(ifma); ifma->ifma_debug |= IFD_ATTACHED; if (anon) { ifma->ifma_anoncnt++; VERIFY(ifma->ifma_anoncnt == 1); ifma->ifma_flags |= IFMAF_ANONYMOUS; } LIST_INSERT_HEAD(&ifp->if_multiaddrs, ifma, ifma_link); } static int if_detach_ifma(struct ifnet *ifp, struct ifmultiaddr *ifma, int anon) { ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_EXCLUSIVE); IFMA_LOCK_ASSERT_HELD(ifma); if (ifma->ifma_reqcnt == 0) { panic("%s: ifma=%p negative reqcnt", __func__, ifma); /* NOTREACHED */ } else if (anon && !(ifma->ifma_flags & IFMAF_ANONYMOUS)) { panic("%s: ifma=%p missing IFMAF_ANONYMOUS", __func__, ifma); /* NOTREACHED */ } else if (anon && ifma->ifma_anoncnt == 0) { panic("%s: ifma=%p negative anonreqcnt", __func__, ifma); /* NOTREACHED */ } else if (ifma->ifma_ifp != ifp) { panic("%s: Mismatch ifma_ifp=%p, ifp=%p", __func__, ifma->ifma_ifp, ifp); /* NOTREACHED */ } if (anon) { --ifma->ifma_anoncnt; if (ifma->ifma_anoncnt > 0) return (0); ifma->ifma_flags &= ~IFMAF_ANONYMOUS; } --ifma->ifma_reqcnt; if (ifma->ifma_reqcnt > 0) return (0); if (ifma->ifma_protospec != NULL) { panic("%s: Protospec not NULL for ifma=%p", __func__, ifma); /* NOTREACHED */ } else if ((ifma->ifma_flags & IFMAF_ANONYMOUS) || ifma->ifma_anoncnt != 0) { panic("%s: Detaching ifma=%p with outstanding anon req", __func__, ifma); /* NOTREACHED */ } else if (!(ifma->ifma_debug & IFD_ATTACHED)) { panic("%s: Attempt to detach an unattached address ifma=%p", __func__, ifma); /* NOTREACHED */ } else if (ifma->ifma_debug & IFD_TRASHED) { panic("%s: ifma %p is already in trash list", __func__, ifma); /* NOTREACHED */ } /* * NOTE: Caller calls IFMA_REMREF */ ifma->ifma_debug &= ~IFD_ATTACHED; LIST_REMOVE(ifma, ifma_link); if (LIST_EMPTY(&ifp->if_multiaddrs)) ifp->if_updatemcasts = 0; if (ifma->ifma_debug & IFD_DEBUG) { /* Become a regular mutex, just in case */ IFMA_CONVERT_LOCK(ifma); lck_mtx_lock(&ifma_trash_lock); TAILQ_INSERT_TAIL(&ifma_trash_head, (struct ifmultiaddr_dbg *)ifma, ifma_trash_link); lck_mtx_unlock(&ifma_trash_lock); ifma->ifma_debug |= IFD_TRASHED; } return (1); } /* * Find an ifmultiaddr that matches a socket address on an interface. * * Caller is responsible for holding the ifnet_lock while calling * this function. */ static int if_addmulti_doesexist(struct ifnet *ifp, const struct sockaddr *sa, struct ifmultiaddr **retifma, int anon) { struct ifmultiaddr *ifma; for (ifma = LIST_FIRST(&ifp->if_multiaddrs); ifma != NULL; ifma = LIST_NEXT(ifma, ifma_link)) { IFMA_LOCK_SPIN(ifma); if (!equal(sa, ifma->ifma_addr)) { IFMA_UNLOCK(ifma); continue; } if (anon) { VERIFY(!(ifma->ifma_flags & IFMAF_ANONYMOUS) || ifma->ifma_anoncnt != 0); VERIFY((ifma->ifma_flags & IFMAF_ANONYMOUS) || ifma->ifma_anoncnt == 0); ifma->ifma_anoncnt++; if (!(ifma->ifma_flags & IFMAF_ANONYMOUS)) { VERIFY(ifma->ifma_anoncnt == 1); ifma->ifma_flags |= IFMAF_ANONYMOUS; } } if (!anon || ifma->ifma_anoncnt == 1) { ifma->ifma_reqcnt++; VERIFY(ifma->ifma_reqcnt > 1); } if (retifma != NULL) { *retifma = ifma; IFMA_ADDREF_LOCKED(ifma); } IFMA_UNLOCK(ifma); return (0); } return (ENOENT); } /* * Radar 3642395, make sure all multicasts are in a standard format. */ static struct sockaddr* copy_and_normalize(const struct sockaddr *original) { int alen = 0; const u_char *aptr = NULL; struct sockaddr *copy = NULL; struct sockaddr_dl *sdl_new = NULL; int len = 0; if (original->sa_family != AF_LINK && original->sa_family != AF_UNSPEC) { /* Just make a copy */ MALLOC(copy, struct sockaddr*, original->sa_len, M_IFADDR, M_WAITOK); if (copy != NULL) bcopy(original, copy, original->sa_len); return (copy); } switch (original->sa_family) { case AF_LINK: { const struct sockaddr_dl *sdl_original = (struct sockaddr_dl*)(uintptr_t)(size_t)original; if (sdl_original->sdl_nlen + sdl_original->sdl_alen + sdl_original->sdl_slen + offsetof(struct sockaddr_dl, sdl_data) > sdl_original->sdl_len) return (NULL); alen = sdl_original->sdl_alen; aptr = CONST_LLADDR(sdl_original); } break; case AF_UNSPEC: { if (original->sa_len < ETHER_ADDR_LEN + offsetof(struct sockaddr, sa_data)) { return (NULL); } alen = ETHER_ADDR_LEN; aptr = (const u_char*)original->sa_data; } break; } if (alen == 0 || aptr == NULL) return (NULL); len = alen + offsetof(struct sockaddr_dl, sdl_data); MALLOC(sdl_new, struct sockaddr_dl*, len, M_IFADDR, M_WAITOK); if (sdl_new != NULL) { bzero(sdl_new, len); sdl_new->sdl_len = len; sdl_new->sdl_family = AF_LINK; sdl_new->sdl_alen = alen; bcopy(aptr, LLADDR(sdl_new), alen); } return ((struct sockaddr*)sdl_new); } /* * Network-layer protocol domains which hold references to the underlying * link-layer record must use this routine. */ int if_addmulti(struct ifnet *ifp, const struct sockaddr *sa, struct ifmultiaddr **retifma) { return (if_addmulti_common(ifp, sa, retifma, 0)); } /* * Anything other than network-layer protocol domains which hold references * to the underlying link-layer record must use this routine: SIOCADDMULTI * ioctl, ifnet_add_multicast(), if_bond. */ int if_addmulti_anon(struct ifnet *ifp, const struct sockaddr *sa, struct ifmultiaddr **retifma) { return (if_addmulti_common(ifp, sa, retifma, 1)); } /* * Register an additional multicast address with a network interface. * * - If the address is already present, bump the reference count on the * address and return. * - If the address is not link-layer, look up a link layer address. * - Allocate address structures for one or both addresses, and attach to the * multicast address list on the interface. If automatically adding a link * layer address, the protocol address will own a reference to the link * layer address, to be freed when it is freed. * - Notify the network device driver of an addition to the multicast address * list. * * 'sa' points to caller-owned memory with the desired multicast address. * * 'retifma' will be used to return a pointer to the resulting multicast * address reference, if desired. * * 'anon' indicates a link-layer address with no protocol address reference * made to it. Anything other than network-layer protocol domain requests * are considered as anonymous. */ static int if_addmulti_common(struct ifnet *ifp, const struct sockaddr *sa, struct ifmultiaddr **retifma, int anon) { struct sockaddr_storage storage; struct sockaddr *llsa = NULL; struct sockaddr *dupsa = NULL; int error = 0, ll_firstref = 0, lladdr; struct ifmultiaddr *ifma = NULL; struct ifmultiaddr *llifma = NULL; /* Only AF_UNSPEC/AF_LINK is allowed for an "anonymous" address */ VERIFY(!anon || sa->sa_family == AF_UNSPEC || sa->sa_family == AF_LINK); /* If sa is a AF_LINK or AF_UNSPEC, duplicate and normalize it */ if (sa->sa_family == AF_LINK || sa->sa_family == AF_UNSPEC) { dupsa = copy_and_normalize(sa); if (dupsa == NULL) { error = ENOMEM; goto cleanup; } sa = dupsa; } ifnet_lock_exclusive(ifp); if (!(ifp->if_flags & IFF_MULTICAST)) { error = EADDRNOTAVAIL; ifnet_lock_done(ifp); goto cleanup; } /* If the address is already present, return a new reference to it */ error = if_addmulti_doesexist(ifp, sa, retifma, anon); ifnet_lock_done(ifp); if (error == 0) goto cleanup; /* * The address isn't already present; give the link layer a chance * to accept/reject it, and also find out which AF_LINK address this * maps to, if it isn't one already. */ error = dlil_resolve_multi(ifp, sa, (struct sockaddr *)&storage, sizeof (storage)); if (error == 0 && storage.ss_len != 0) { llsa = copy_and_normalize((struct sockaddr *)&storage); if (llsa == NULL) { error = ENOMEM; goto cleanup; } llifma = ifma_alloc(M_WAITOK); if (llifma == NULL) { error = ENOMEM; goto cleanup; } } /* to be similar to FreeBSD */ if (error == EOPNOTSUPP) error = 0; else if (error != 0) goto cleanup; /* Allocate while we aren't holding any locks */ if (dupsa == NULL) { dupsa = copy_and_normalize(sa); if (dupsa == NULL) { error = ENOMEM; goto cleanup; } } ifma = ifma_alloc(M_WAITOK); if (ifma == NULL) { error = ENOMEM; goto cleanup; } ifnet_lock_exclusive(ifp); /* * Check again for the matching multicast. */ error = if_addmulti_doesexist(ifp, sa, retifma, anon); if (error == 0) { ifnet_lock_done(ifp); goto cleanup; } if (llifma != NULL) { VERIFY(!anon); /* must not get here if "anonymous" */ if (if_addmulti_doesexist(ifp, llsa, &ifma->ifma_ll, 0) == 0) { FREE(llsa, M_IFADDR); llsa = NULL; ifma_free(llifma); llifma = NULL; VERIFY(ifma->ifma_ll->ifma_ifp == ifp); } else { ll_firstref = 1; llifma->ifma_addr = llsa; llifma->ifma_ifp = ifp; IFMA_LOCK(llifma); if_attach_ifma(ifp, llifma, 0); /* add extra refcnt for ifma */ IFMA_ADDREF_LOCKED(llifma); IFMA_UNLOCK(llifma); ifma->ifma_ll = llifma; } } /* "anonymous" request should not result in network address */ VERIFY(!anon || ifma->ifma_ll == NULL); ifma->ifma_addr = dupsa; ifma->ifma_ifp = ifp; IFMA_LOCK(ifma); if_attach_ifma(ifp, ifma, anon); IFMA_ADDREF_LOCKED(ifma); /* for this routine */ if (retifma != NULL) { *retifma = ifma; IFMA_ADDREF_LOCKED(*retifma); /* for caller */ } lladdr = (ifma->ifma_addr->sa_family == AF_UNSPEC || ifma->ifma_addr->sa_family == AF_LINK); IFMA_UNLOCK(ifma); ifnet_lock_done(ifp); rt_newmaddrmsg(RTM_NEWMADDR, ifma); IFMA_REMREF(ifma); /* for this routine */ /* * We are certain we have added something, so call down to the * interface to let them know about it. Do this only for newly- * added AF_LINK/AF_UNSPEC address in the if_multiaddrs set. */ if (lladdr || ll_firstref) (void) ifnet_ioctl(ifp, 0, SIOCADDMULTI, NULL); if (ifp->if_updatemcasts > 0) ifp->if_updatemcasts = 0; return (0); cleanup: if (ifma != NULL) ifma_free(ifma); if (dupsa != NULL) FREE(dupsa, M_IFADDR); if (llifma != NULL) ifma_free(llifma); if (llsa != NULL) FREE(llsa, M_IFADDR); return (error); } /* * Delete a multicast group membership by network-layer group address. * This routine is deprecated. */ int if_delmulti(struct ifnet *ifp, const struct sockaddr *sa) { return (if_delmulti_common(NULL, ifp, sa, 0)); } /* * Delete a multicast group membership by group membership pointer. * Network-layer protocol domains must use this routine. */ int if_delmulti_ifma(struct ifmultiaddr *ifma) { return (if_delmulti_common(ifma, NULL, NULL, 0)); } /* * Anything other than network-layer protocol domains which hold references * to the underlying link-layer record must use this routine: SIOCDELMULTI * ioctl, ifnet_remove_multicast(), if_bond. */ int if_delmulti_anon(struct ifnet *ifp, const struct sockaddr *sa) { return (if_delmulti_common(NULL, ifp, sa, 1)); } /* * Delete a multicast group membership by network-layer group address. * * Returns ENOENT if the entry could not be found. */ static int if_delmulti_common(struct ifmultiaddr *ifma, struct ifnet *ifp, const struct sockaddr *sa, int anon) { struct sockaddr *dupsa = NULL; int lastref, ll_lastref = 0, lladdr; struct ifmultiaddr *ll = NULL; /* sanity check for callers */ VERIFY(ifma != NULL || (ifp != NULL && sa != NULL)); if (ifma != NULL) ifp = ifma->ifma_ifp; if (sa != NULL && (sa->sa_family == AF_LINK || sa->sa_family == AF_UNSPEC)) { dupsa = copy_and_normalize(sa); if (dupsa == NULL) return (ENOMEM); sa = dupsa; } ifnet_lock_exclusive(ifp); if (ifma == NULL) { for (ifma = LIST_FIRST(&ifp->if_multiaddrs); ifma != NULL; ifma = LIST_NEXT(ifma, ifma_link)) { IFMA_LOCK(ifma); if (!equal(sa, ifma->ifma_addr) || (anon && !(ifma->ifma_flags & IFMAF_ANONYMOUS))) { VERIFY(!(ifma->ifma_flags & IFMAF_ANONYMOUS) || ifma->ifma_anoncnt != 0); IFMA_UNLOCK(ifma); continue; } /* found; keep it locked */ break; } if (ifma == NULL) { if (dupsa != NULL) FREE(dupsa, M_IFADDR); ifnet_lock_done(ifp); return (ENOENT); } } else { IFMA_LOCK(ifma); } IFMA_LOCK_ASSERT_HELD(ifma); IFMA_ADDREF_LOCKED(ifma); /* for this routine */ lastref = if_detach_ifma(ifp, ifma, anon); VERIFY(!lastref || (!(ifma->ifma_debug & IFD_ATTACHED) && ifma->ifma_reqcnt == 0)); VERIFY(!anon || ifma->ifma_ll == NULL); ll = ifma->ifma_ll; lladdr = (ifma->ifma_addr->sa_family == AF_UNSPEC || ifma->ifma_addr->sa_family == AF_LINK); IFMA_UNLOCK(ifma); if (lastref && ll != NULL) { IFMA_LOCK(ll); ll_lastref = if_detach_ifma(ifp, ll, 0); IFMA_UNLOCK(ll); } ifnet_lock_done(ifp); if (lastref) rt_newmaddrmsg(RTM_DELMADDR, ifma); if ((ll == NULL && lastref && lladdr) || ll_lastref) { /* * Make sure the interface driver is notified in the * case of a link layer mcast group being left. Do * this only for a AF_LINK/AF_UNSPEC address that has * been removed from the if_multiaddrs set. */ ifnet_ioctl(ifp, 0, SIOCDELMULTI, NULL); } if (lastref) IFMA_REMREF(ifma); /* for if_multiaddrs list */ if (ll_lastref) IFMA_REMREF(ll); /* for if_multiaddrs list */ IFMA_REMREF(ifma); /* for this routine */ if (dupsa != NULL) FREE(dupsa, M_IFADDR); return (0); } /* * Shutdown all network activity. Used boot() when halting * system. */ int if_down_all(void) { struct ifnet **ifp; u_int32_t count; u_int32_t i; if (ifnet_list_get_all(IFNET_FAMILY_ANY, &ifp, &count) == 0) { for (i = 0; i < count; i++) { if_down(ifp[i]); dlil_proto_unplumb_all(ifp[i]); } ifnet_list_free(ifp); } return 0; } /* * Delete Routes for a Network Interface * * Called for each routing entry via the rnh->rnh_walktree() call above * to delete all route entries referencing a detaching network interface. * * Arguments: * rn pointer to node in the routing table * arg argument passed to rnh->rnh_walktree() - detaching interface * * Returns: * 0 successful * errno failed - reason indicated * */ static int if_rtdel(struct radix_node *rn, void *arg) { struct rtentry *rt = (struct rtentry *)rn; struct ifnet *ifp = arg; int err; if (rt == NULL) return (0); /* * Checking against RTF_UP protects against walktree * recursion problems with cloned routes. */ RT_LOCK(rt); if (rt->rt_ifp == ifp && (rt->rt_flags & RTF_UP)) { /* * Safe to drop rt_lock and use rt_key, rt_gateway, * since holding rnh_lock here prevents another thread * from calling rt_setgate() on this route. */ RT_UNLOCK(rt); err = rtrequest_locked(RTM_DELETE, rt_key(rt), rt->rt_gateway, rt_mask(rt), rt->rt_flags, NULL); if (err) { log(LOG_WARNING, "if_rtdel: error %d\n", err); } } else { RT_UNLOCK(rt); } return (0); } /* * Removes routing table reference to a given interface * for a given protocol family */ void if_rtproto_del(struct ifnet *ifp, int protocol) { struct radix_node_head *rnh; if ((protocol <= AF_MAX) && (protocol >= 0) && ((rnh = rt_tables[protocol]) != NULL) && (ifp != NULL)) { lck_mtx_lock(rnh_lock); (void) rnh->rnh_walktree(rnh, if_rtdel, ifp); lck_mtx_unlock(rnh_lock); } } static int if_rtmtu(struct radix_node *rn, void *arg) { struct rtentry *rt = (struct rtentry *)rn; struct ifnet *ifp = arg; RT_LOCK(rt); if (rt->rt_ifp == ifp) { /* * Update the MTU of this entry only if the MTU * has not been locked (RTV_MTU is not set) and * if it was non-zero to begin with. */ if (!(rt->rt_rmx.rmx_locks & RTV_MTU) && rt->rt_rmx.rmx_mtu) rt->rt_rmx.rmx_mtu = ifp->if_mtu; } RT_UNLOCK(rt); return (0); } /* * Update the MTU metric of all route entries in all protocol tables * associated with a particular interface; this is called when the * MTU of that interface has changed. */ static void if_rtmtu_update(struct ifnet *ifp) { struct radix_node_head *rnh; int p; for (p = 0; p < AF_MAX + 1; p++) { if ((rnh = rt_tables[p]) == NULL) continue; lck_mtx_lock(rnh_lock); (void) rnh->rnh_walktree(rnh, if_rtmtu, ifp); lck_mtx_unlock(rnh_lock); } routegenid_update(); } __private_extern__ void if_data_internal_to_if_data(struct ifnet *ifp, const struct if_data_internal *if_data_int, struct if_data *if_data) { #pragma unused(ifp) #define COPYFIELD(fld) if_data->fld = if_data_int->fld #define COPYFIELD32(fld) if_data->fld = (u_int32_t)(if_data_int->fld) /* compiler will cast down to 32-bit */ #define COPYFIELD32_ATOMIC(fld) do { \ atomic_get_64(if_data->fld, \ (u_int64_t *)(void *)(uintptr_t)&if_data_int->fld); \ } while (0) COPYFIELD(ifi_type); COPYFIELD(ifi_typelen); COPYFIELD(ifi_physical); COPYFIELD(ifi_addrlen); COPYFIELD(ifi_hdrlen); COPYFIELD(ifi_recvquota); COPYFIELD(ifi_xmitquota); if_data->ifi_unused1 = 0; COPYFIELD(ifi_mtu); COPYFIELD(ifi_metric); if (if_data_int->ifi_baudrate & 0xFFFFFFFF00000000LL) { if_data->ifi_baudrate = 0xFFFFFFFF; } else { COPYFIELD32(ifi_baudrate); } COPYFIELD32_ATOMIC(ifi_ipackets); COPYFIELD32_ATOMIC(ifi_ierrors); COPYFIELD32_ATOMIC(ifi_opackets); COPYFIELD32_ATOMIC(ifi_oerrors); COPYFIELD32_ATOMIC(ifi_collisions); COPYFIELD32_ATOMIC(ifi_ibytes); COPYFIELD32_ATOMIC(ifi_obytes); COPYFIELD32_ATOMIC(ifi_imcasts); COPYFIELD32_ATOMIC(ifi_omcasts); COPYFIELD32_ATOMIC(ifi_iqdrops); COPYFIELD32_ATOMIC(ifi_noproto); COPYFIELD(ifi_recvtiming); COPYFIELD(ifi_xmittiming); if_data->ifi_lastchange.tv_sec = if_data_int->ifi_lastchange.tv_sec; if_data->ifi_lastchange.tv_usec = if_data_int->ifi_lastchange.tv_usec; if_data->ifi_lastchange.tv_sec += boottime_sec(); if_data->ifi_unused2 = 0; COPYFIELD(ifi_hwassist); if_data->ifi_reserved1 = 0; if_data->ifi_reserved2 = 0; #undef COPYFIELD32_ATOMIC #undef COPYFIELD32 #undef COPYFIELD } __private_extern__ void if_data_internal_to_if_data64(struct ifnet *ifp, const struct if_data_internal *if_data_int, struct if_data64 *if_data64) { #pragma unused(ifp) #define COPYFIELD64(fld) if_data64->fld = if_data_int->fld #define COPYFIELD64_ATOMIC(fld) do { \ atomic_get_64(if_data64->fld, \ (u_int64_t *)(void *)(uintptr_t)&if_data_int->fld); \ } while (0) COPYFIELD64(ifi_type); COPYFIELD64(ifi_typelen); COPYFIELD64(ifi_physical); COPYFIELD64(ifi_addrlen); COPYFIELD64(ifi_hdrlen); COPYFIELD64(ifi_recvquota); COPYFIELD64(ifi_xmitquota); if_data64->ifi_unused1 = 0; COPYFIELD64(ifi_mtu); COPYFIELD64(ifi_metric); COPYFIELD64(ifi_baudrate); COPYFIELD64_ATOMIC(ifi_ipackets); COPYFIELD64_ATOMIC(ifi_ierrors); COPYFIELD64_ATOMIC(ifi_opackets); COPYFIELD64_ATOMIC(ifi_oerrors); COPYFIELD64_ATOMIC(ifi_collisions); COPYFIELD64_ATOMIC(ifi_ibytes); COPYFIELD64_ATOMIC(ifi_obytes); COPYFIELD64_ATOMIC(ifi_imcasts); COPYFIELD64_ATOMIC(ifi_omcasts); COPYFIELD64_ATOMIC(ifi_iqdrops); COPYFIELD64_ATOMIC(ifi_noproto); /* Note these two fields are actually 32 bit, so doing COPYFIELD64_ATOMIC will * cause them to be misaligned */ COPYFIELD64(ifi_recvtiming); COPYFIELD64(ifi_xmittiming); if_data64->ifi_lastchange.tv_sec = if_data_int->ifi_lastchange.tv_sec; if_data64->ifi_lastchange.tv_usec = if_data_int->ifi_lastchange.tv_usec; if_data64->ifi_lastchange.tv_sec += boottime_sec(); #undef COPYFIELD64 } __private_extern__ void if_copy_traffic_class(struct ifnet *ifp, struct if_traffic_class *if_tc) { #define COPY_IF_TC_FIELD64_ATOMIC(fld) do { \ atomic_get_64(if_tc->fld, \ (u_int64_t *)(void *)(uintptr_t)&ifp->if_tc.fld); \ } while (0) bzero(if_tc, sizeof (*if_tc)); COPY_IF_TC_FIELD64_ATOMIC(ifi_ibepackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_ibebytes); COPY_IF_TC_FIELD64_ATOMIC(ifi_obepackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_obebytes); COPY_IF_TC_FIELD64_ATOMIC(ifi_ibkpackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_ibkbytes); COPY_IF_TC_FIELD64_ATOMIC(ifi_obkpackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_obkbytes); COPY_IF_TC_FIELD64_ATOMIC(ifi_ivipackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_ivibytes); COPY_IF_TC_FIELD64_ATOMIC(ifi_ovipackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_ovibytes); COPY_IF_TC_FIELD64_ATOMIC(ifi_ivopackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_ivobytes); COPY_IF_TC_FIELD64_ATOMIC(ifi_ovopackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_ovobytes); COPY_IF_TC_FIELD64_ATOMIC(ifi_ipvpackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_ipvbytes); COPY_IF_TC_FIELD64_ATOMIC(ifi_opvpackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_opvbytes); #undef COPY_IF_TC_FIELD64_ATOMIC } void if_copy_data_extended(struct ifnet *ifp, struct if_data_extended *if_de) { #define COPY_IF_DE_FIELD64_ATOMIC(fld) do { \ atomic_get_64(if_de->fld, \ (u_int64_t *)(void *)(uintptr_t)&ifp->if_data.fld); \ } while (0) bzero(if_de, sizeof (*if_de)); COPY_IF_DE_FIELD64_ATOMIC(ifi_alignerrs); COPY_IF_DE_FIELD64_ATOMIC(ifi_dt_bytes); COPY_IF_DE_FIELD64_ATOMIC(ifi_fpackets); COPY_IF_DE_FIELD64_ATOMIC(ifi_fbytes); #undef COPY_IF_DE_FIELD64_ATOMIC } void if_copy_packet_stats(struct ifnet *ifp, struct if_packet_stats *if_ps) { #define COPY_IF_PS_TCP_FIELD64_ATOMIC(fld) do { \ atomic_get_64(if_ps->ifi_tcp_##fld, \ (u_int64_t *)(void *)(uintptr_t)&ifp->if_tcp_stat->fld); \ } while (0) #define COPY_IF_PS_UDP_FIELD64_ATOMIC(fld) do { \ atomic_get_64(if_ps->ifi_udp_##fld, \ (u_int64_t *)(void *)(uintptr_t)&ifp->if_udp_stat->fld); \ } while (0) COPY_IF_PS_TCP_FIELD64_ATOMIC(badformat); COPY_IF_PS_TCP_FIELD64_ATOMIC(unspecv6); COPY_IF_PS_TCP_FIELD64_ATOMIC(synfin); COPY_IF_PS_TCP_FIELD64_ATOMIC(badformatipsec); COPY_IF_PS_TCP_FIELD64_ATOMIC(noconnnolist); COPY_IF_PS_TCP_FIELD64_ATOMIC(noconnlist); COPY_IF_PS_TCP_FIELD64_ATOMIC(listbadsyn); COPY_IF_PS_TCP_FIELD64_ATOMIC(icmp6unreach); COPY_IF_PS_TCP_FIELD64_ATOMIC(deprecate6); COPY_IF_PS_TCP_FIELD64_ATOMIC(ooopacket); COPY_IF_PS_TCP_FIELD64_ATOMIC(rstinsynrcv); COPY_IF_PS_TCP_FIELD64_ATOMIC(dospacket); COPY_IF_PS_TCP_FIELD64_ATOMIC(cleanup); COPY_IF_PS_TCP_FIELD64_ATOMIC(synwindow); COPY_IF_PS_UDP_FIELD64_ATOMIC(port_unreach); COPY_IF_PS_UDP_FIELD64_ATOMIC(faithprefix); COPY_IF_PS_UDP_FIELD64_ATOMIC(port0); COPY_IF_PS_UDP_FIELD64_ATOMIC(badlength); COPY_IF_PS_UDP_FIELD64_ATOMIC(badchksum); COPY_IF_PS_UDP_FIELD64_ATOMIC(badmcast); COPY_IF_PS_UDP_FIELD64_ATOMIC(cleanup); COPY_IF_PS_UDP_FIELD64_ATOMIC(badipsec); #undef COPY_IF_PS_TCP_FIELD64_ATOMIC #undef COPY_IF_PS_UDP_FIELD64_ATOMIC } void if_copy_rxpoll_stats(struct ifnet *ifp, struct if_rxpoll_stats *if_rs) { bzero(if_rs, sizeof (*if_rs)); if (!(ifp->if_eflags & IFEF_RXPOLL) || !ifnet_is_attached(ifp, 1)) return; /* by now, ifnet will stay attached so if_inp must be valid */ VERIFY(ifp->if_inp != NULL); bcopy(&ifp->if_inp->pstats, if_rs, sizeof (*if_rs)); /* Release the IO refcnt */ ifnet_decr_iorefcnt(ifp); } struct ifaddr * ifa_remref(struct ifaddr *ifa, int locked) { if (!locked) IFA_LOCK_SPIN(ifa); else IFA_LOCK_ASSERT_HELD(ifa); if (ifa->ifa_refcnt == 0) panic("%s: ifa %p negative refcnt\n", __func__, ifa); else if (ifa->ifa_trace != NULL) (*ifa->ifa_trace)(ifa, FALSE); if (--ifa->ifa_refcnt == 0) { if (ifa->ifa_debug & IFD_ATTACHED) panic("ifa %p attached to ifp is being freed\n", ifa); /* * Some interface addresses are allocated either statically * or carved out of a larger block. Only free it if it was * allocated via MALLOC or via the corresponding per-address * family allocator. Otherwise, leave it alone. */ if (ifa->ifa_debug & IFD_ALLOC) { if (ifa->ifa_free == NULL) { IFA_UNLOCK(ifa); FREE(ifa, M_IFADDR); } else { /* Become a regular mutex */ IFA_CONVERT_LOCK(ifa); /* callee will unlock */ (*ifa->ifa_free)(ifa); } } else { IFA_UNLOCK(ifa); } ifa = NULL; } if (!locked && ifa != NULL) IFA_UNLOCK(ifa); return (ifa); } void ifa_addref(struct ifaddr *ifa, int locked) { if (!locked) IFA_LOCK_SPIN(ifa); else IFA_LOCK_ASSERT_HELD(ifa); if (++ifa->ifa_refcnt == 0) { panic("%s: ifa %p wraparound refcnt\n", __func__, ifa); /* NOTREACHED */ } else if (ifa->ifa_trace != NULL) { (*ifa->ifa_trace)(ifa, TRUE); } if (!locked) IFA_UNLOCK(ifa); } void ifa_lock_init(struct ifaddr *ifa) { lck_mtx_init(&ifa->ifa_lock, ifa_mtx_grp, ifa_mtx_attr); } void ifa_lock_destroy(struct ifaddr *ifa) { IFA_LOCK_ASSERT_NOTHELD(ifa); lck_mtx_destroy(&ifa->ifa_lock, ifa_mtx_grp); } /* * 'i' group ioctls. * * The switch statement below does nothing at runtime, as it serves as a * compile time check to ensure that all of the socket 'i' ioctls (those * in the 'i' group going thru soo_ioctl) that are made available by the * networking stack is unique. This works as long as this routine gets * updated each time a new interface ioctl gets added. * * Any failures at compile time indicates duplicated ioctl values. */ static __attribute__((unused)) void ifioctl_cassert(void) { /* * This is equivalent to _CASSERT() and the compiler wouldn't * generate any instructions, thus for compile time only. */ switch ((u_long)0) { case 0: /* bsd/net/if_ppp.h */ case SIOCGPPPSTATS: case SIOCGPPPCSTATS: #if INET6 /* bsd/netinet6/in6_var.h */ case SIOCSIFADDR_IN6: case SIOCGIFADDR_IN6: case SIOCSIFDSTADDR_IN6: case SIOCSIFNETMASK_IN6: case SIOCGIFDSTADDR_IN6: case SIOCGIFNETMASK_IN6: case SIOCDIFADDR_IN6: case SIOCAIFADDR_IN6_32: case SIOCAIFADDR_IN6_64: case SIOCSIFPHYADDR_IN6_32: case SIOCSIFPHYADDR_IN6_64: case SIOCGIFPSRCADDR_IN6: case SIOCGIFPDSTADDR_IN6: case SIOCGIFAFLAG_IN6: case SIOCGDRLST_IN6_32: case SIOCGDRLST_IN6_64: case SIOCGPRLST_IN6_32: case SIOCGPRLST_IN6_64: case OSIOCGIFINFO_IN6: case SIOCGIFINFO_IN6: case SIOCSNDFLUSH_IN6: case SIOCGNBRINFO_IN6_32: case SIOCGNBRINFO_IN6_64: case SIOCSPFXFLUSH_IN6: case SIOCSRTRFLUSH_IN6: case SIOCGIFALIFETIME_IN6: case SIOCSIFALIFETIME_IN6: case SIOCGIFSTAT_IN6: case SIOCGIFSTAT_ICMP6: case SIOCSDEFIFACE_IN6_32: case SIOCSDEFIFACE_IN6_64: case SIOCGDEFIFACE_IN6_32: case SIOCGDEFIFACE_IN6_64: case SIOCSIFINFO_FLAGS: case SIOCSSCOPE6: case SIOCGSCOPE6: case SIOCGSCOPE6DEF: case SIOCSIFPREFIX_IN6: case SIOCGIFPREFIX_IN6: case SIOCDIFPREFIX_IN6: case SIOCAIFPREFIX_IN6: case SIOCCIFPREFIX_IN6: case SIOCSGIFPREFIX_IN6: case SIOCPROTOATTACH_IN6_32: case SIOCPROTOATTACH_IN6_64: case SIOCPROTODETACH_IN6: case SIOCLL_START_32: case SIOCLL_START_64: case SIOCLL_STOP: case SIOCAUTOCONF_START: case SIOCAUTOCONF_STOP: case SIOCSETROUTERMODE_IN6: case SIOCLL_CGASTART_32: case SIOCLL_CGASTART_64: #endif /* INET6 */ /* bsd/sys/sockio.h */ case SIOCSIFADDR: case OSIOCGIFADDR: case SIOCSIFDSTADDR: case OSIOCGIFDSTADDR: case SIOCSIFFLAGS: case SIOCGIFFLAGS: case OSIOCGIFBRDADDR: case SIOCSIFBRDADDR: case OSIOCGIFCONF32: case OSIOCGIFCONF64: case OSIOCGIFNETMASK: case SIOCSIFNETMASK: case SIOCGIFMETRIC: case SIOCSIFMETRIC: case SIOCDIFADDR: case SIOCAIFADDR: case SIOCGIFADDR: case SIOCGIFDSTADDR: case SIOCGIFBRDADDR: case SIOCGIFCONF32: case SIOCGIFCONF64: case SIOCGIFNETMASK: case SIOCAUTOADDR: case SIOCAUTONETMASK: case SIOCARPIPLL: case SIOCADDMULTI: case SIOCDELMULTI: case SIOCGIFMTU: case SIOCSIFMTU: case SIOCGIFPHYS: case SIOCSIFPHYS: case SIOCSIFMEDIA: case SIOCGIFMEDIA32: case SIOCGIFMEDIA64: case SIOCSIFGENERIC: case SIOCGIFGENERIC: case SIOCRSLVMULTI: case SIOCSIFLLADDR: case SIOCGIFSTATUS: case SIOCSIFPHYADDR: case SIOCGIFPSRCADDR: case SIOCGIFPDSTADDR: case SIOCDIFPHYADDR: case SIOCGIFDEVMTU: case SIOCSIFALTMTU: case SIOCGIFALTMTU: case SIOCSIFBOND: case SIOCGIFBOND: case SIOCPROTOATTACH: case SIOCPROTODETACH: case SIOCSIFCAP: case SIOCGIFCAP: case SIOCIFCREATE: case SIOCIFDESTROY: case SIOCIFCREATE2: case SIOCSDRVSPEC32: case SIOCGDRVSPEC32: case SIOCSDRVSPEC64: case SIOCGDRVSPEC64: case SIOCSIFVLAN: case SIOCGIFVLAN: case SIOCIFGCLONERS32: case SIOCIFGCLONERS64: case SIOCGIFASYNCMAP: case SIOCSIFASYNCMAP: #if CONFIG_MACF_NET case SIOCGIFMAC: case SIOCSIFMAC: #endif /* CONFIG_MACF_NET */ case SIOCSIFKPI: case SIOCGIFKPI: case SIOCGIFWAKEFLAGS: case SIOCGIFGETRTREFCNT: case SIOCGIFLINKQUALITYMETRIC: case SIOCSIFOPPORTUNISTIC: case SIOCGIFOPPORTUNISTIC: case SIOCSETROUTERMODE: case SIOCGIFEFLAGS: case SIOCSIFDESC: case SIOCGIFDESC: case SIOCSIFLINKPARAMS: case SIOCGIFLINKPARAMS: case SIOCGIFQUEUESTATS: case SIOCSIFTHROTTLE: case SIOCGIFTHROTTLE: case SIOCSIFLOG: case SIOCGIFLOG: case SIOCGIFDELEGATE: case SIOCGIFLLADDR: case SIOCGIFTYPE: ; } }