/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* @(#)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 <kern/locks.h>
#include <net/if_types.h>
#include <net/if_var.h>
#include <net/net_osdep.h>
+#include <net/ethernet.h>
#include <net/radix.h>
#include <net/route.h>
#include <libkern/OSAtomic.h>
#endif
-#if defined(INET) || defined(INET6)
+#if INET || INET6
/*XXX*/
#include <netinet/in.h>
#include <netinet/in_var.h>
#endif
#endif
+extern u_long route_generation;
+extern int use_routegenid;
+extern int dlil_multithreaded_input;
+extern struct dlil_threading_info *dlil_lo_thread_ptr;
+
+#if CONFIG_MACF_NET
+#include <security/mac_framework.h>
+#endif
+
/*
* System initialization
*/
__private_extern__ void link_rtrequest(int, struct rtentry *, struct sockaddr *);
void if_rtproto_del(struct ifnet *ifp, int protocol);
+static int if_rtmtu(struct radix_node *, void *);
+static void if_rtmtu_update(struct ifnet *);
+
static struct if_clone *if_clone_lookup(const char *, int *);
#ifdef IF_CLONE_LIST
static int if_clone_list(int count, int * total, user_addr_t dst);
#if 1
/* Debugging code */
if ((ifa->ifa_debug & IFA_ATTACHED) == 0) {
- printf("if_detach_ifa: ifa is not attached to any interface! flags=%\n", ifa->ifa_debug);
+ printf("if_detach_ifa: ifa is not attached to any interface! flags=%lu\n", ifa->ifa_debug);
return;
}
else {
for (ifc = LIST_FIRST(&if_cloners); ifc != NULL && count != 0;
ifc = LIST_NEXT(ifc, ifc_list), count--, dst += IFNAMSIZ) {
- strncpy(outbuf, ifc->ifc_name, IFNAMSIZ - 1);
+ strlcpy(outbuf, ifc->ifc_name, IFNAMSIZ);
error = copyout(outbuf, dst, IFNAMSIZ);
if (error)
break;
}
#endif IF_CLONE_LIST
-int ifa_foraddr(unsigned int addr);
__private_extern__ int
ifa_foraddr(
unsigned int addr)
return result;
}
+/*
+ * 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 *ifa0 = NULL, *ifa;
+
+ ifnet_lock_shared(ifp);
+ TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
+ if (ifa->ifa_addr->sa_family == family && ifa0 == NULL) {
+ ifa0 = ifa;
+ break;
+ }
+ }
+ if (ifa0 != NULL)
+ ifaref(ifa0);
+ ifnet_lock_done(ifp);
+
+ return (ifa0);
+}
+
/*
* Locate an interface based on a complete address.
*/
{
struct ifnet *ifp;
struct ifaddr *ifa;
- struct ifaddr *result = 0;
+ struct ifaddr *result = NULL;
#define equal(a1, a2) \
(bcmp((const void*)(a1), (const void*)(a2), ((const struct sockaddr *)(a1))->sa_len) == 0)
{
struct ifnet *ifp;
struct ifaddr *ifa;
- struct ifaddr *result = 0;
+ struct ifaddr *result = NULL;
ifnet_head_lock_shared();
for (ifp = ifnet_head.tqh_first; ifp && !result; ifp = ifp->if_link.tqe_next) {
struct ifaddr *ifa = NULL;
struct ifaddr *ifa_maybe = (struct ifaddr *) 0;
u_int af = addr->sa_family;
- char *addr_data = addr->sa_data, *cplim;
+ const char *addr_data = addr->sa_data, *cplim;
ifnet_head_lock_shared();
/*
ifnet_lock_shared(ifp);
for (ifa = ifp->if_addrhead.tqh_first; ifa;
ifa = ifa->ifa_link.tqe_next) {
- char *cp, *cp2, *cp3;
+ const char *cp, *cp2, *cp3;
if (ifa->ifa_addr->sa_family != af)
next: continue;
const struct sockaddr *addr,
struct ifnet *ifp)
{
- struct ifaddr *ifa = 0;
+ struct ifaddr *ifa = NULL;
const char *cp, *cp2, *cp3;
char *cplim;
- struct ifaddr *ifa_maybe = 0;
+ struct ifaddr *ifa_maybe = NULL;
+ struct ifaddr *better_ifa_maybe = NULL;
u_int af = addr->sa_family;
if (af >= AF_MAX)
- return (0);
+ return (NULL);
ifnet_lock_shared(ifp);
for (ifa = ifp->if_addrhead.tqh_first; ifa;
if (equal(addr, ifa->ifa_dstaddr))
break;
} else {
+ if (equal(addr, ifa->ifa_addr)) {
+ /* exact match */
+ break;
+ }
cp = addr->sa_data;
cp2 = ifa->ifa_addr->sa_data;
cp3 = ifa->ifa_netmask->sa_data;
for (; cp3 < cplim; cp3++)
if ((*cp++ ^ *cp2++) & *cp3)
break;
- if (cp3 == cplim)
- break;
+ if (cp3 == cplim) {
+ /* subnet match */
+ if (better_ifa_maybe == NULL) {
+ better_ifa_maybe = ifa;
+ }
+ }
}
}
- if (!ifa) ifa = ifa_maybe;
+ if (ifa == NULL) {
+ if (better_ifa_maybe != NULL) {
+ ifa = better_ifa_maybe;
+ } else {
+ ifa = ifa_maybe;
+ }
+ }
if (ifa) ifaref(ifa);
ifnet_lock_done(ifp);
* This should be moved to /sys/net/link.c eventually.
*/
void
-link_rtrequest(cmd, rt, sa)
- int cmd;
- struct rtentry *rt;
- struct sockaddr *sa;
+link_rtrequest(int cmd, struct rtentry *rt, struct sockaddr *sa)
{
struct ifaddr *ifa;
struct sockaddr *dst;
* Flush an interface queue.
*/
static void
-if_qflush(ifq)
- struct ifqueue *ifq;
+if_qflush(struct ifqueue *ifq)
{
struct mbuf *m, *n;
n = m->m_act;
m_freem(m);
}
- ifq->ifq_head = 0;
- ifq->ifq_tail = 0;
+ ifq->ifq_head = NULL;
+ ifq->ifq_tail = NULL;
ifq->ifq_len = 0;
}
*/
ifnet_head_lock_shared();
TAILQ_FOREACH(ifp, &ifnet_head, if_link) {
- if (strcmp(ifp->if_name, namebuf))
+ if (strncmp(ifp->if_name, namebuf, len))
continue;
if (unit == ifp->if_unit)
break;
* interface structure pointer.
*/
struct ifnet *
-if_withname(sa)
- struct sockaddr *sa;
+if_withname(struct sockaddr *sa)
{
char ifname[IFNAMSIZ+1];
struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
* Interface ioctls.
*/
int
-ifioctl(so, cmd, data, p)
- struct socket *so;
- u_long cmd;
- caddr_t data;
- struct proc *p;
+ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p)
{
struct ifnet *ifp;
struct ifreq *ifr;
ifnet_lock_done(ifp);
break;
+#if CONFIG_MACF_NET
+ case SIOCGIFMAC:
+ error = mac_ifnet_label_get(kauth_cred_get(), ifr, ifp);
+ if (error)
+ return (error);
+ break;
+#endif
case SIOCGIFMETRIC:
ifnet_lock_shared(ifp);
ifr->ifr_metric = ifp->if_metric;
error = proc_suser(p);
if (error)
return (error);
-
- ifnet_set_flags(ifp, ifr->ifr_flags, ~IFF_CANTCHANGE);
- error = dlil_ioctl(so->so_proto->pr_domain->dom_family,
- ifp, cmd, (caddr_t) data);
+ ifnet_set_flags(ifp, ifr->ifr_flags, (u_int16_t)~IFF_CANTCHANGE);
+
+ error = ifnet_ioctl(ifp, so->so_proto->pr_domain->dom_family,
+ cmd, data);
if (error == 0) {
ev_msg.vendor_code = KEV_VENDOR_APPLE;
ev_msg.kev_subclass = KEV_DL_SUBCLASS;
ev_msg.event_code = KEV_DL_SIFFLAGS;
- strncpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
+ strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
ev_data.if_family = ifp->if_family;
ev_data.if_unit = (unsigned long) ifp->if_unit;
ev_msg.dv[0].data_length = sizeof(struct net_event_data);
ifnet_touch_lastchange(ifp);
break;
+#if CONFIG_MACF_NET
+ case SIOCSIFMAC:
+ error = mac_ifnet_label_set(kauth_cred_get(), ifr, ifp);
+ if (error)
+ return (error);
+ break;
+#endif
case SIOCSIFMETRIC:
error = proc_suser(p);
if (error)
ev_msg.kev_subclass = KEV_DL_SUBCLASS;
ev_msg.event_code = KEV_DL_SIFMETRICS;
- strncpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
+ strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
ev_data.if_family = ifp->if_family;
ev_data.if_unit = (unsigned long) ifp->if_unit;
ev_msg.dv[0].data_length = sizeof(struct net_event_data);
if (error)
return error;
- error = dlil_ioctl(so->so_proto->pr_domain->dom_family,
- ifp, cmd, (caddr_t) data);
+ error = ifnet_ioctl(ifp, so->so_proto->pr_domain->dom_family,
+ cmd, data);
if (error == 0) {
ev_msg.vendor_code = KEV_VENDOR_APPLE;
ev_msg.kev_subclass = KEV_DL_SUBCLASS;
ev_msg.event_code = KEV_DL_SIFPHYS;
- strncpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
+ strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
ev_data.if_family = ifp->if_family;
ev_data.if_unit = (unsigned long) ifp->if_unit;
ev_msg.dv[0].data_length = sizeof(struct net_event_data);
if (ifr->ifr_mtu < IF_MINMTU || ifr->ifr_mtu > IF_MAXMTU)
return (EINVAL);
- error = dlil_ioctl(so->so_proto->pr_domain->dom_family,
- ifp, cmd, (caddr_t) data);
+ error = ifnet_ioctl(ifp, so->so_proto->pr_domain->dom_family,
+ cmd, data);
if (error == 0) {
ev_msg.vendor_code = KEV_VENDOR_APPLE;
ev_msg.kev_subclass = KEV_DL_SUBCLASS;
ev_msg.event_code = KEV_DL_SIFMTU;
- strncpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
+ strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
ev_data.if_family = ifp->if_family;
ev_data.if_unit = (unsigned long) ifp->if_unit;
ev_msg.dv[0].data_length = sizeof(struct net_event_data);
rt_ifmsg(ifp);
}
/*
- * If the link MTU changed, do network layer specific procedure.
+ * 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 (error == 0 && ifp->if_mtu != oldmtu) {
+ if_rtmtu_update(ifp);
#if INET6
nd6_setmtu(ifp);
#endif
ev_msg.vendor_code = KEV_VENDOR_APPLE;
ev_msg.kev_class = KEV_NETWORK_CLASS;
ev_msg.kev_subclass = KEV_DL_SUBCLASS;
- strncpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
+ strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
ev_data.if_family = ifp->if_family;
ev_data.if_unit = (unsigned long) ifp->if_unit;
case SIOCSIFPHYADDR:
case SIOCDIFPHYADDR:
-#ifdef INET6
+#if INET6
case SIOCSIFPHYADDR_IN6:
#endif
case SIOCSLIFPHYADDR:
if (error)
return (error);
- error = dlil_ioctl(so->so_proto->pr_domain->dom_family,
- ifp, cmd, (caddr_t) data);
+ error = ifnet_ioctl(ifp, so->so_proto->pr_domain->dom_family,
+ cmd, data);
if (error == 0)
ifnet_touch_lastchange(ifp);
case SIOCGIFMEDIA:
case SIOCGIFGENERIC:
case SIOCGIFDEVMTU:
- return dlil_ioctl(so->so_proto->pr_domain->dom_family,
- ifp, cmd, (caddr_t) data);
+ return ifnet_ioctl(ifp, so->so_proto->pr_domain->dom_family,
+ cmd, data);
case SIOCGIFVLAN:
case SIOCGIFBOND:
- return dlil_ioctl(so->so_proto->pr_domain->dom_family,
- ifp, cmd, (caddr_t) data);
+ return ifnet_ioctl(ifp, so->so_proto->pr_domain->dom_family,
+ cmd, data);
default:
oif_flags = ifp->if_flags;
if (so->so_proto == 0)
return (EOPNOTSUPP);
-#if !COMPAT_43_SOCKET
- socket_lock(so, 1);
- error =(*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, ifp, p));
- socket_unlock(so, 1);
- return (error);
-#else
{
int ocmd = cmd;
}
}
-#endif /* COMPAT_43_SOCKET */
+ if (cmd == SIOCSIFKPI) {
+ int temperr = proc_suser(p);
+ if (temperr != 0)
+ error = temperr;
+ }
if (error == EOPNOTSUPP || error == ENOTSUP)
- error = dlil_ioctl(so->so_proto->pr_domain->dom_family,
- ifp, cmd, (caddr_t) data);
+ error = ifnet_ioctl(ifp, so->so_proto->pr_domain->dom_family,
+ cmd, data);
return (error);
}
}
int
-ifioctllocked(so, cmd, data, p)
- struct socket *so;
- u_long cmd;
- caddr_t data;
- struct proc *p;
+ifioctllocked(struct socket *so, u_long cmd, caddr_t data, struct proc *p)
{
int error;
ifr.ifr_flags = ifp->if_flags;
locked = 0;
ifnet_lock_done(ifp);
- error = dlil_ioctl(0, ifp, SIOCSIFFLAGS, (caddr_t)&ifr);
+ error = ifnet_ioctl(ifp, 0, SIOCSIFFLAGS, &ifr);
if (error == 0)
rt_ifmsg(ifp);
else
error = ENAMETOOLONG;
break;
} else {
- strcpy(ifr.ifr_name, workbuf);
+ strlcpy(ifr.ifr_name, workbuf, IFNAMSIZ);
}
ifnet_lock_shared(ifp);
continue;
#endif
addrs++;
-#if COMPAT_43_SOCKET
if (cmd == OSIOCGIFCONF) {
struct osockaddr *osa =
(struct osockaddr *)&ifr.ifr_addr;
osa->sa_family = sa->sa_family;
error = copyout((caddr_t)&ifr, ifrp, sizeof(ifr));
ifrp += sizeof(struct ifreq);
- } else
-#endif
- if (sa->sa_len <= sizeof(*sa)) {
+ } else if (sa->sa_len <= sizeof(*sa)) {
ifr.ifr_addr = *sa;
error = copyout((caddr_t)&ifr, ifrp, sizeof(ifr));
ifrp += sizeof(struct ifreq);
* Just like if_promisc(), but for all-multicast-reception mode.
*/
int
-if_allmulti(ifp, onswitch)
- struct ifnet *ifp;
- int onswitch;
+if_allmulti(struct ifnet *ifp, int onswitch)
{
int error = 0;
int modified = 0;
ifnet_lock_done(ifp);
if (modified)
- error = dlil_ioctl(0, ifp, SIOCSIFFLAGS, (caddr_t) 0);
+ error = ifnet_ioctl(ifp, 0, SIOCSIFFLAGS, NULL);
if (error == 0)
rt_ifmsg(ifp);
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 =
+ (const struct sockaddr_dl*)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;
+}
+
/*
* Add a multicast listenership to the interface in question.
* The link layer provides a routine which converts
{
struct sockaddr_storage storage;
struct sockaddr *llsa = NULL;
- struct sockaddr *dupsa;
- int error;
- struct ifmultiaddr *ifma;
+ struct sockaddr *dupsa = NULL;
+ int error = 0;
+ struct ifmultiaddr *ifma = NULL;
struct ifmultiaddr *llifma = NULL;
+ /* 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) {
+ return ENOMEM;
+ }
+ sa = dupsa;
+ }
+
ifnet_lock_exclusive(ifp);
error = if_addmulti_doesexist(ifp, sa, retifma);
ifnet_lock_done(ifp);
- if (error == 0)
- return 0;
+ if (error == 0) {
+ goto cleanup;
+ }
/*
* 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));
+ error = dlil_resolve_multi(ifp, sa, (struct sockaddr*)&storage,
+ sizeof(storage));
if (error == 0 && storage.ss_len != 0) {
- MALLOC(llsa, struct sockaddr*, storage.ss_len, M_IFMADDR, M_WAITOK);
+ llsa = copy_and_normalize((struct sockaddr*)&storage);
+ if (llsa == NULL) {
+ error = ENOMEM;
+ goto cleanup;
+ }
+
MALLOC(llifma, struct ifmultiaddr *, sizeof *llifma, M_IFMADDR, M_WAITOK);
- bcopy(&storage, llsa, storage.ss_len);
+ if (llifma == NULL) {
+ error = ENOMEM;
+ goto cleanup;
+ }
}
/* to be similar to FreeBSD */
- if (error == EOPNOTSUPP)
+ if (error == EOPNOTSUPP) {
error = 0;
-
- if (error) {
- return error;
+ }
+ else if (error) {
+ 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;
+ }
+ }
MALLOC(ifma, struct ifmultiaddr *, sizeof *ifma, M_IFMADDR, M_WAITOK);
- MALLOC(dupsa, struct sockaddr *, sa->sa_len, M_IFMADDR, M_WAITOK);
- bcopy(sa, dupsa, sa->sa_len);
+ if (ifma == NULL) {
+ error = ENOMEM;
+ goto cleanup;
+ }
ifnet_lock_exclusive(ifp);
/*
*/
if ((error = if_addmulti_doesexist(ifp, sa, retifma)) == 0) {
ifnet_lock_done(ifp);
- FREE(ifma, M_IFMADDR);
- FREE(dupsa, M_IFMADDR);
- if (llsa)
- FREE(llsa, M_IFMADDR);
- return 0;
+ goto cleanup;
}
bzero(ifma, sizeof(*ifma));
* We are certain we have added something, so call down to the
* interface to let them know about it.
*/
- dlil_ioctl(0, ifp, SIOCADDMULTI, (caddr_t) 0);
+ ifnet_ioctl(ifp, 0, SIOCADDMULTI, NULL);
return 0;
+
+cleanup:
+ if (ifma)
+ FREE(ifma, M_IFADDR);
+ if (dupsa)
+ FREE(dupsa, M_IFADDR);
+ if (llifma)
+ FREE(llifma, M_IFADDR);
+ if (llsa)
+ FREE(llsa, M_IFADDR);
+
+ return error;
}
int
if (do_del_multi) {
if (locked)
ifnet_lock_done(ifp);
- dlil_ioctl(0, ifp, SIOCDELMULTI, 0);
+ ifnet_ioctl(ifp, 0, SIOCDELMULTI, NULL);
if (locked)
ifnet_lock_exclusive(ifp);
}
struct ifnet *ifp,
const struct sockaddr *sa)
{
- struct ifmultiaddr *ifma;
+ struct ifmultiaddr *ifma;
+ struct sockaddr *dupsa = NULL;
int retval = 0;
+ if (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);
for (ifma = ifp->if_multiaddrs.lh_first; ifma;
ifma = ifma->ifma_link.le_next)
break;
if (ifma == 0) {
ifnet_lock_done(ifp);
+ if (dupsa)
+ FREE(dupsa, M_IFADDR);
return ENOENT;
}
retval = if_delmultiaddr(ifma, 1);
ifnet_lock_done(ifp);
+ if (dupsa)
+ FREE(dupsa, M_IFADDR);
return retval;
}
#endif
struct ifmultiaddr *
-ifmaof_ifpforaddr(sa, ifp)
- const struct sockaddr *sa;
- struct ifnet *ifp;
+ifmaof_ifpforaddr(const struct sockaddr *sa, struct ifnet *ifp)
{
struct ifmultiaddr *ifma;
return ifma;
}
-SYSCTL_NODE(_net, PF_LINK, link, CTLFLAG_RW, 0, "Link layers");
-SYSCTL_NODE(_net_link, 0, generic, CTLFLAG_RW, 0, "Generic link-management");
+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");
/*
* Shutdown all network activity. Used boot() when halting
* system.
*/
-int if_down_all(void);
-int if_down_all(void)
+int
+if_down_all(void)
{
struct ifnet **ifp;
u_int32_t count;
u_int32_t i;
- if (ifnet_list_get(IFNET_FAMILY_ANY, &ifp, &count) != 0) {
+ 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;
}
void if_rtproto_del(struct ifnet *ifp, int protocol)
{
struct radix_node_head *rnh;
-
+ if (use_routegenid)
+ route_generation++;
if ((protocol <= AF_MAX) && (protocol >= 0) &&
((rnh = rt_tables[protocol]) != NULL) && (ifp != NULL)) {
lck_mtx_lock(rt_mtx);
}
}
-extern lck_spin_t *dlil_input_lock;
+static int
+if_rtmtu(struct radix_node *rn, void *arg)
+{
+ struct rtentry *rt = (struct rtentry *)rn;
+ struct ifnet *ifp = arg;
+
+ 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;
+ }
+
+ 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(rt_mtx);
+ (void) rnh->rnh_walktree(rnh, if_rtmtu, ifp);
+ lck_mtx_unlock(rt_mtx);
+ }
+
+ if (use_routegenid)
+ route_generation++;
+}
__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)
{
+ struct dlil_threading_info *thread;
+ if ((thread = ifp->if_input_thread) == NULL || (dlil_multithreaded_input == 0))
+ thread = dlil_lo_thread_ptr;
+
#define COPYFIELD(fld) if_data->fld = if_data_int->fld
#define COPYFIELD32(fld) if_data->fld = (u_int32_t)(if_data_int->fld)
COPYFIELD(ifi_type);
COPYFIELD32(ifi_baudrate);
}
- lck_spin_lock(dlil_input_lock);
+ lck_mtx_lock(thread->input_lck);
COPYFIELD32(ifi_ipackets);
COPYFIELD32(ifi_ierrors);
COPYFIELD32(ifi_opackets);
COPYFIELD32(ifi_recvtiming);
COPYFIELD32(ifi_xmittiming);
COPYFIELD(ifi_lastchange);
- lck_spin_unlock(dlil_input_lock);
+ lck_mtx_unlock(thread->input_lck);
#if IF_LASTCHANGEUPTIME
if_data->ifi_lastchange.tv_sec += boottime_sec();
__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)
{
+ struct dlil_threading_info *thread;
+ if ((thread = ifp->if_input_thread) == NULL || (dlil_multithreaded_input == 0))
+ thread = dlil_lo_thread_ptr;
+
#define COPYFIELD(fld) if_data64->fld = if_data_int->fld
COPYFIELD(ifi_type);
COPYFIELD(ifi_typelen);
COPYFIELD(ifi_metric);
COPYFIELD(ifi_baudrate);
- lck_spin_lock(dlil_input_lock);
+ lck_mtx_lock(thread->input_lck);
COPYFIELD(ifi_ipackets);
COPYFIELD(ifi_ierrors);
COPYFIELD(ifi_opackets);
COPYFIELD(ifi_recvtiming);
COPYFIELD(ifi_xmittiming);
COPYFIELD(ifi_lastchange);
- lck_spin_unlock(dlil_input_lock);
+ lck_mtx_unlock(thread->input_lck);
#if IF_LASTCHANGEUPTIME
if_data64->ifi_lastchange.tv_sec += boottime_sec();
projects / apple / xnu.git / blobdiff