/*
- * Copyright (c) 2003-2015 Apple Inc. All rights reserved.
+ * Copyright (c) 2003-2020 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <sys/kern_event.h>
#include <sys/mcache.h>
#include <sys/protosw.h>
+#include <sys/sysctl.h>
#include <kern/locks.h>
#include <kern/zalloc.h>
+#include <kern/clock.h>
#include <libkern/OSAtomic.h>
#include <machine/machine_routines.h>
#include <mach/boolean.h>
#include <net/route.h>
#include <net/if_dl.h>
#include <net/kpi_protocol.h>
+#include <net/nwk_wq.h>
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <net/net_osdep.h>
+#include <net/dlil.h>
+#include <net/if_llatbl.h>
+
#if PF
#include <net/pfvar.h>
#endif /* PF */
const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
const struct in6_addr in6addr_nodelocal_allnodes =
- IN6ADDR_NODELOCAL_ALLNODES_INIT;
+ IN6ADDR_NODELOCAL_ALLNODES_INIT;
const struct in6_addr in6addr_linklocal_allnodes =
- IN6ADDR_LINKLOCAL_ALLNODES_INIT;
+ IN6ADDR_LINKLOCAL_ALLNODES_INIT;
const struct in6_addr in6addr_linklocal_allrouters =
- IN6ADDR_LINKLOCAL_ALLROUTERS_INIT;
+ IN6ADDR_LINKLOCAL_ALLROUTERS_INIT;
const struct in6_addr in6addr_linklocal_allv2routers =
- IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT;
+ IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT;
+const struct in6_addr in6addr_multicast_prefix =
+ IN6ADDR_MULTICAST_PREFIX;
const struct in6_addr in6mask0 = IN6MASK0;
const struct in6_addr in6mask7 = IN6MASK7;
+const struct in6_addr in6mask8 = IN6MASK8;
const struct in6_addr in6mask16 = IN6MASK16;
const struct in6_addr in6mask32 = IN6MASK32;
const struct in6_addr in6mask64 = IN6MASK64;
const struct in6_addr in6mask128 = IN6MASK128;
const struct sockaddr_in6 sa6_any = {
- sizeof (sa6_any), AF_INET6, 0, 0, IN6ADDR_ANY_INIT, 0
+ .sin6_len = sizeof(sa6_any),
+ .sin6_family = AF_INET6,
+ .sin6_port = 0,
+ .sin6_flowinfo = 0,
+ .sin6_addr = IN6ADDR_ANY_INIT,
+ .sin6_scope_id = 0
};
static int in6ctl_associd(struct socket *, u_long, caddr_t);
static int in6ctl_aifaddr(struct ifnet *, struct in6_aliasreq *);
static void in6ctl_difaddr(struct ifnet *, struct in6_ifaddr *);
static int in6_autoconf(struct ifnet *, int);
-static int in6_setrouter(struct ifnet *, int);
+static int in6_setrouter(struct ifnet *, ipv6_router_mode_t);
static int in6_ifinit(struct ifnet *, struct in6_ifaddr *, int);
static int in6_ifaupdate_aux(struct in6_ifaddr *, struct ifnet *, int);
static void in6_unlink_ifa(struct in6_ifaddr *, struct ifnet *);
-static struct in6_ifaddr *in6_ifaddr_alloc(int);
+static struct in6_ifaddr *in6_ifaddr_alloc(zalloc_flags_t);
static void in6_ifaddr_attached(struct ifaddr *);
static void in6_ifaddr_detached(struct ifaddr *);
static void in6_ifaddr_free(struct ifaddr *);
static void in6_ifaddr_trace(struct ifaddr *, int);
#if defined(__LP64__)
-static void in6_llstartreq_32_to_64(struct in6_llstartreq_32 *,
- struct in6_llstartreq_64 *);
+static void in6_cgareq_32_to_64(const struct in6_cgareq_32 *,
+ struct in6_cgareq_64 *);
#else
-static void in6_llstartreq_64_to_32(struct in6_llstartreq_64 *,
- struct in6_llstartreq_32 *);
+static void in6_cgareq_64_to_32(const struct in6_cgareq_64 *,
+ struct in6_cgareq_32 *);
#endif
static struct in6_aliasreq *in6_aliasreq_to_native(void *, int,
struct in6_aliasreq *);
-static struct in6_llstartreq *in6_llstartreq_to_native(void *, int,
- struct in6_llstartreq *);
static int in6_to_kamescope(struct sockaddr_in6 *, struct ifnet *);
-
-static void in6_ifaddr_set_dadprogress(struct in6_ifaddr *);
-
static int in6_getassocids(struct socket *, uint32_t *, user_addr_t);
static int in6_getconnids(struct socket *, sae_associd_t, uint32_t *,
user_addr_t);
-static int in6_getconninfo(struct socket *, sae_connid_t, uint32_t *,
- uint32_t *, int32_t *, user_addr_t, socklen_t *, user_addr_t, socklen_t *,
- uint32_t *, user_addr_t, uint32_t *);
static void in6_if_up_dad_start(struct ifnet *);
+#define IA6_HASH_INIT(ia) { \
+ (ia)->ia6_hash.tqe_next = (void *)(uintptr_t)-1; \
+ (ia)->ia6_hash.tqe_prev = (void *)(uintptr_t)-1; \
+}
+
+#define IA6_IS_HASHED(ia) \
+ (!((ia)->ia6_hash.tqe_next == (void *)(uintptr_t)-1 || \
+ (ia)->ia6_hash.tqe_prev == (void *)(uintptr_t)-1))
+
+static void in6_iahash_remove(struct in6_ifaddr *);
+static void in6_iahash_insert(struct in6_ifaddr *);
+static void in6_iahash_insert_ptp(struct in6_ifaddr *);
+
extern lck_mtx_t *nd6_mutex;
-#define IN6IFA_TRACE_HIST_SIZE 32 /* size of trace history */
+#define IN6IFA_TRACE_HIST_SIZE 32 /* size of trace history */
/* For gdb */
__private_extern__ unsigned int in6ifa_trace_hist_size = IN6IFA_TRACE_HIST_SIZE;
struct in6_ifaddr_dbg {
- struct in6_ifaddr in6ifa; /* in6_ifaddr */
- struct in6_ifaddr in6ifa_old; /* saved in6_ifaddr */
- u_int16_t in6ifa_refhold_cnt; /* # of IFA_ADDREF */
- u_int16_t in6ifa_refrele_cnt; /* # of IFA_REMREF */
+ struct in6_ifaddr in6ifa; /* in6_ifaddr */
+ struct in6_ifaddr in6ifa_old; /* saved in6_ifaddr */
+ u_int16_t in6ifa_refhold_cnt; /* # of IFA_ADDREF */
+ u_int16_t in6ifa_refrele_cnt; /* # of IFA_REMREF */
/*
* Alloc and free callers.
*/
- ctrace_t in6ifa_alloc;
- ctrace_t in6ifa_free;
+ ctrace_t in6ifa_alloc;
+ ctrace_t in6ifa_free;
/*
* Circular lists of IFA_ADDREF and IFA_REMREF callers.
*/
- ctrace_t in6ifa_refhold[IN6IFA_TRACE_HIST_SIZE];
- ctrace_t in6ifa_refrele[IN6IFA_TRACE_HIST_SIZE];
+ ctrace_t in6ifa_refhold[IN6IFA_TRACE_HIST_SIZE];
+ ctrace_t in6ifa_refrele[IN6IFA_TRACE_HIST_SIZE];
/*
* Trash list linkage
*/
static decl_lck_mtx_data(, in6ifa_trash_lock);
#if DEBUG
-static unsigned int in6ifa_debug = 1; /* debugging (enabled) */
+static unsigned int in6ifa_debug = 1; /* debugging (enabled) */
#else
-static unsigned int in6ifa_debug; /* debugging (disabled) */
+static unsigned int in6ifa_debug; /* debugging (disabled) */
#endif /* !DEBUG */
-static unsigned int in6ifa_size; /* size of zone element */
-static struct zone *in6ifa_zone; /* zone for in6_ifaddr */
-
-#define IN6IFA_ZONE_MAX 64 /* maximum elements in zone */
-#define IN6IFA_ZONE_NAME "in6_ifaddr" /* zone name */
+static struct zone *in6ifa_zone; /* zone for in6_ifaddr */
+#define IN6IFA_ZONE_NAME "in6_ifaddr" /* zone name */
+struct eventhandler_lists_ctxt in6_evhdlr_ctxt;
+struct eventhandler_lists_ctxt in6_clat46_evhdlr_ctxt;
/*
* Subroutine for in6_ifaddloop() and in6_ifremloop().
* This routine does actual work.
struct rtentry *nrt = NULL;
int e;
- bzero(&all1_sa, sizeof (all1_sa));
+ bzero(&all1_sa, sizeof(all1_sa));
all1_sa.sin6_family = AF_INET6;
- all1_sa.sin6_len = sizeof (struct sockaddr_in6);
+ all1_sa.sin6_len = sizeof(struct sockaddr_in6);
all1_sa.sin6_addr = in6mask128;
/*
*/
lck_mtx_lock(rnh_lock);
e = rtrequest_locked(cmd, ifa->ifa_addr, ifa->ifa_addr,
- (struct sockaddr *)&all1_sa, RTF_UP|RTF_HOST|RTF_LLINFO, &nrt);
+ (struct sockaddr *)&all1_sa, RTF_UP | RTF_HOST | RTF_LLINFO, &nrt);
if (e != 0) {
log(LOG_ERR, "in6_ifloop_request: "
"%s operation failed for %s (errno=%d)\n",
e);
}
- if (nrt != NULL)
+ if (nrt != NULL) {
RT_LOCK(nrt);
+ }
/*
* Make sure rt_ifa be equal to IFA, the second argument of the
* function.
* INET6 is set once during init; no need to hold lock.
*/
rt = rtalloc1(ifa->ifa_addr, 0, 0);
- if (rt != NULL)
+ if (rt != NULL) {
RT_LOCK(rt);
+ }
if (rt == NULL || (rt->rt_flags & RTF_HOST) == 0 ||
(rt->rt_ifp->if_flags & IFF_LOOPBACK) == 0) {
if (rt != NULL) {
* XXX: we should avoid such a configuration in IPv6...
*/
lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
- for (ia = in6_ifaddrs; ia; ia = ia->ia_next) {
+ TAILQ_FOREACH(ia, IN6ADDR_HASH(IFA_IN6(ifa)), ia6_hash) {
IFA_LOCK(&ia->ia_ifa);
if (IN6_ARE_ADDR_EQUAL(IFA_IN6(ifa), &ia->ia_addr.sin6_addr)) {
ia_count++;
int
-in6_mask2len(mask, lim0)
- struct in6_addr *mask;
- u_char *lim0;
+in6_mask2len(struct in6_addr *mask, u_char *lim0)
{
int x = 0, y;
u_char *lim = lim0, *p;
/* ignore the scope_id part */
- if (lim0 == NULL || lim0 - (u_char *)mask > sizeof (*mask))
- lim = (u_char *)mask + sizeof (*mask);
+ if (lim0 == NULL || lim0 - (u_char *)mask > sizeof(*mask)) {
+ lim = (u_char *)mask + sizeof(*mask);
+ }
for (p = (u_char *)mask; p < lim; x++, p++) {
- if (*p != 0xff)
+ if (*p != 0xff) {
break;
+ }
}
y = 0;
if (p < lim) {
for (y = 0; y < 8; y++) {
- if ((*p & (0x80 >> y)) == 0)
+ if ((*p & (0x80 >> y)) == 0) {
break;
+ }
}
}
* remaining bits.
*/
if (p < lim) {
- if (y != 0 && (*p & (0x00ff >> y)) != 0)
- return (-1);
- for (p = p + 1; p < lim; p++)
- if (*p != 0)
- return (-1);
+ if (y != 0 && (*p & (0x00ff >> y)) != 0) {
+ return -1;
+ }
+ for (p = p + 1; p < lim; p++) {
+ if (*p != 0) {
+ return -1;
+ }
+ }
}
- return (x * 8 + y);
+ return x * 8 + y;
}
void
-in6_len2mask(mask, len)
- struct in6_addr *mask;
- int len;
+in6_len2mask(struct in6_addr *mask, int len)
{
int i;
- bzero(mask, sizeof (*mask));
- for (i = 0; i < len / 8; i++)
+ bzero(mask, sizeof(*mask));
+ for (i = 0; i < len / 8; i++) {
mask->s6_addr8[i] = 0xff;
- if (len % 8)
+ }
+ if (len % 8) {
mask->s6_addr8[i] = (0xff00 >> (len % 8)) & 0xff;
+ }
}
void
in6_aliasreq_64_to_32(struct in6_aliasreq_64 *src, struct in6_aliasreq_32 *dst)
{
- bzero(dst, sizeof (*dst));
- bcopy(src->ifra_name, dst->ifra_name, sizeof (dst->ifra_name));
+ bzero(dst, sizeof(*dst));
+ bcopy(src->ifra_name, dst->ifra_name, sizeof(dst->ifra_name));
dst->ifra_addr = src->ifra_addr;
dst->ifra_dstaddr = src->ifra_dstaddr;
dst->ifra_prefixmask = src->ifra_prefixmask;
dst->ifra_flags = src->ifra_flags;
- dst->ifra_lifetime.ia6t_expire = src->ifra_lifetime.ia6t_expire;
- dst->ifra_lifetime.ia6t_preferred = src->ifra_lifetime.ia6t_preferred;
+ dst->ifra_lifetime.ia6t_expire = (u_int32_t)src->ifra_lifetime.ia6t_expire;
+ dst->ifra_lifetime.ia6t_preferred = (u_int32_t)src->ifra_lifetime.ia6t_preferred;
dst->ifra_lifetime.ia6t_vltime = src->ifra_lifetime.ia6t_vltime;
dst->ifra_lifetime.ia6t_pltime = src->ifra_lifetime.ia6t_pltime;
}
void
in6_aliasreq_32_to_64(struct in6_aliasreq_32 *src, struct in6_aliasreq_64 *dst)
{
- bzero(dst, sizeof (*dst));
- bcopy(src->ifra_name, dst->ifra_name, sizeof (dst->ifra_name));
+ bzero(dst, sizeof(*dst));
+ bcopy(src->ifra_name, dst->ifra_name, sizeof(dst->ifra_name));
dst->ifra_addr = src->ifra_addr;
dst->ifra_dstaddr = src->ifra_dstaddr;
dst->ifra_prefixmask = src->ifra_prefixmask;
}
#if defined(__LP64__)
-void
-in6_llstartreq_32_to_64(struct in6_llstartreq_32 *src,
- struct in6_llstartreq_64 *dst)
+static void
+in6_cgareq_32_to_64(const struct in6_cgareq_32 *src,
+ struct in6_cgareq_64 *dst)
{
- bzero(dst, sizeof (*dst));
- bcopy(src->llsr_name, dst->llsr_name, sizeof (dst->llsr_name));
- dst->llsr_flags = src->llsr_flags;
- bcopy(src->llsr_cgaprep.cga_modifier.octets,
- dst->llsr_cgaprep.cga_modifier.octets,
- sizeof (dst->llsr_cgaprep.cga_modifier.octets));
- dst->llsr_cgaprep.cga_security_level =
- src->llsr_cgaprep.cga_security_level;
- dst->llsr_lifetime.ia6t_expire = src->llsr_lifetime.ia6t_expire;
- dst->llsr_lifetime.ia6t_preferred = src->llsr_lifetime.ia6t_preferred;
- dst->llsr_lifetime.ia6t_vltime = src->llsr_lifetime.ia6t_vltime;
- dst->llsr_lifetime.ia6t_pltime = src->llsr_lifetime.ia6t_pltime;
+ bzero(dst, sizeof(*dst));
+ bcopy(src->cgar_name, dst->cgar_name, sizeof(dst->cgar_name));
+ dst->cgar_flags = src->cgar_flags;
+ bcopy(src->cgar_cgaprep.cga_modifier.octets,
+ dst->cgar_cgaprep.cga_modifier.octets,
+ sizeof(dst->cgar_cgaprep.cga_modifier.octets));
+ dst->cgar_cgaprep.cga_security_level =
+ src->cgar_cgaprep.cga_security_level;
+ dst->cgar_lifetime.ia6t_expire = src->cgar_lifetime.ia6t_expire;
+ dst->cgar_lifetime.ia6t_preferred = src->cgar_lifetime.ia6t_preferred;
+ dst->cgar_lifetime.ia6t_vltime = src->cgar_lifetime.ia6t_vltime;
+ dst->cgar_lifetime.ia6t_pltime = src->cgar_lifetime.ia6t_pltime;
+ dst->cgar_collision_count = src->cgar_collision_count;
}
#endif
#if !defined(__LP64__)
-void
-in6_llstartreq_64_to_32(struct in6_llstartreq_64 *src,
- struct in6_llstartreq_32 *dst)
+static void
+in6_cgareq_64_to_32(const struct in6_cgareq_64 *src,
+ struct in6_cgareq_32 *dst)
{
- bzero(dst, sizeof (*dst));
- bcopy(src->llsr_name, dst->llsr_name, sizeof (dst->llsr_name));
- dst->llsr_flags = src->llsr_flags;
- bcopy(src->llsr_cgaprep.cga_modifier.octets,
- dst->llsr_cgaprep.cga_modifier.octets,
- sizeof (dst->llsr_cgaprep.cga_modifier.octets));
- dst->llsr_cgaprep.cga_security_level =
- src->llsr_cgaprep.cga_security_level;
- dst->llsr_lifetime.ia6t_expire = src->llsr_lifetime.ia6t_expire;
- dst->llsr_lifetime.ia6t_preferred = src->llsr_lifetime.ia6t_preferred;
- dst->llsr_lifetime.ia6t_vltime = src->llsr_lifetime.ia6t_vltime;
- dst->llsr_lifetime.ia6t_pltime = src->llsr_lifetime.ia6t_pltime;
+ bzero(dst, sizeof(*dst));
+ bcopy(src->cgar_name, dst->cgar_name, sizeof(dst->cgar_name));
+ dst->cgar_flags = src->cgar_flags;
+ bcopy(src->cgar_cgaprep.cga_modifier.octets,
+ dst->cgar_cgaprep.cga_modifier.octets,
+ sizeof(dst->cgar_cgaprep.cga_modifier.octets));
+ dst->cgar_cgaprep.cga_security_level =
+ src->cgar_cgaprep.cga_security_level;
+ dst->cgar_lifetime.ia6t_expire = src->cgar_lifetime.ia6t_expire;
+ dst->cgar_lifetime.ia6t_preferred = src->cgar_lifetime.ia6t_preferred;
+ dst->cgar_lifetime.ia6t_vltime = src->cgar_lifetime.ia6t_vltime;
+ dst->cgar_lifetime.ia6t_pltime = src->cgar_lifetime.ia6t_pltime;
+ dst->cgar_collision_count = src->cgar_collision_count;
}
#endif
in6_aliasreq_to_native(void *data, int data_is_64, struct in6_aliasreq *dst)
{
#if defined(__LP64__)
- if (data_is_64)
- bcopy(data, dst, sizeof (*dst));
- else
+ if (data_is_64) {
+ bcopy(data, dst, sizeof(*dst));
+ } else {
in6_aliasreq_32_to_64((struct in6_aliasreq_32 *)data,
(struct in6_aliasreq_64 *)dst);
+ }
#else
- if (data_is_64)
+ if (data_is_64) {
in6_aliasreq_64_to_32((struct in6_aliasreq_64 *)data,
(struct in6_aliasreq_32 *)dst);
- else
- bcopy(data, dst, sizeof (*dst));
+ } else {
+ bcopy(data, dst, sizeof(*dst));
+ }
#endif /* __LP64__ */
- return (dst);
+ return dst;
}
-static struct in6_llstartreq *
-in6_llstartreq_to_native(void *data, int is64, struct in6_llstartreq *dst)
+void
+in6_cgareq_copy_from_user(const void *user_data, int user_is_64,
+ struct in6_cgareq *cgareq)
{
#if defined(__LP64__)
- if (is64)
- bcopy(data, dst, sizeof (*dst));
- else
- in6_llstartreq_32_to_64((struct in6_llstartreq_32 *)data,
- (struct in6_llstartreq_64 *)dst);
+ if (user_is_64) {
+ bcopy(user_data, cgareq, sizeof(*cgareq));
+ } else {
+ in6_cgareq_32_to_64((const struct in6_cgareq_32 *)user_data,
+ (struct in6_cgareq_64 *)cgareq);
+ }
#else
- if (is64)
- in6_llstartreq_64_to_32((struct in6_llstartreq_64 *)data,
- (struct in6_llstartreq_32 *)dst);
- else
- bcopy(data, dst, sizeof (*dst));
+ if (user_is_64) {
+ in6_cgareq_64_to_32((const struct in6_cgareq_64 *)user_data,
+ (struct in6_cgareq_32 *)cgareq);
+ } else {
+ bcopy(user_data, cgareq, sizeof(*cgareq));
+ }
#endif /* __LP64__ */
- return (dst);
}
static __attribute__((noinline)) int
VERIFY(so != NULL);
switch (cmd) {
- case SIOCGASSOCIDS32: { /* struct so_aidreq32 */
- bcopy(data, &u.a32, sizeof (u.a32));
+ case SIOCGASSOCIDS32: { /* struct so_aidreq32 */
+ bcopy(data, &u.a32, sizeof(u.a32));
error = in6_getassocids(so, &u.a32.sar_cnt, u.a32.sar_aidp);
- if (error == 0)
- bcopy(&u.a32, data, sizeof (u.a32));
+ if (error == 0) {
+ bcopy(&u.a32, data, sizeof(u.a32));
+ }
break;
}
- case SIOCGASSOCIDS64: { /* struct so_aidreq64 */
- bcopy(data, &u.a64, sizeof (u.a64));
+ case SIOCGASSOCIDS64: { /* struct so_aidreq64 */
+ bcopy(data, &u.a64, sizeof(u.a64));
error = in6_getassocids(so, &u.a64.sar_cnt, u.a64.sar_aidp);
- if (error == 0)
- bcopy(&u.a64, data, sizeof (u.a64));
+ if (error == 0) {
+ bcopy(&u.a64, data, sizeof(u.a64));
+ }
break;
}
/* NOTREACHED */
}
- return (error);
+ return error;
}
static __attribute__((noinline)) int
VERIFY(so != NULL);
switch (cmd) {
- case SIOCGCONNIDS32: { /* struct so_cidreq32 */
- bcopy(data, &u.c32, sizeof (u.c32));
+ case SIOCGCONNIDS32: { /* struct so_cidreq32 */
+ bcopy(data, &u.c32, sizeof(u.c32));
error = in6_getconnids(so, u.c32.scr_aid, &u.c32.scr_cnt,
u.c32.scr_cidp);
- if (error == 0)
- bcopy(&u.c32, data, sizeof (u.c32));
+ if (error == 0) {
+ bcopy(&u.c32, data, sizeof(u.c32));
+ }
break;
}
- case SIOCGCONNIDS64: { /* struct so_cidreq64 */
- bcopy(data, &u.c64, sizeof (u.c64));
+ case SIOCGCONNIDS64: { /* struct so_cidreq64 */
+ bcopy(data, &u.c64, sizeof(u.c64));
error = in6_getconnids(so, u.c64.scr_aid, &u.c64.scr_cnt,
u.c64.scr_cidp);
- if (error == 0)
- bcopy(&u.c64, data, sizeof (u.c64));
+ if (error == 0) {
+ bcopy(&u.c64, data, sizeof(u.c64));
+ }
break;
}
/* NOTREACHED */
}
- return (error);
+ return error;
}
static __attribute__((noinline)) int
VERIFY(so != NULL);
switch (cmd) {
- case SIOCGCONNINFO32: { /* struct so_cinforeq32 */
- bcopy(data, &u.ci32, sizeof (u.ci32));
+ case SIOCGCONNINFO32: { /* struct so_cinforeq32 */
+ bcopy(data, &u.ci32, sizeof(u.ci32));
error = in6_getconninfo(so, u.ci32.scir_cid, &u.ci32.scir_flags,
&u.ci32.scir_ifindex, &u.ci32.scir_error, u.ci32.scir_src,
&u.ci32.scir_src_len, u.ci32.scir_dst, &u.ci32.scir_dst_len,
&u.ci32.scir_aux_type, u.ci32.scir_aux_data,
&u.ci32.scir_aux_len);
- if (error == 0)
- bcopy(&u.ci32, data, sizeof (u.ci32));
+ if (error == 0) {
+ bcopy(&u.ci32, data, sizeof(u.ci32));
+ }
break;
}
- case SIOCGCONNINFO64: { /* struct so_cinforeq64 */
- bcopy(data, &u.ci64, sizeof (u.ci64));
+ case SIOCGCONNINFO64: { /* struct so_cinforeq64 */
+ bcopy(data, &u.ci64, sizeof(u.ci64));
error = in6_getconninfo(so, u.ci64.scir_cid, &u.ci64.scir_flags,
&u.ci64.scir_ifindex, &u.ci64.scir_error, u.ci64.scir_src,
&u.ci64.scir_src_len, u.ci64.scir_dst, &u.ci64.scir_dst_len,
&u.ci64.scir_aux_type, u.ci64.scir_aux_data,
&u.ci64.scir_aux_len);
- if (error == 0)
- bcopy(&u.ci64, data, sizeof (u.ci64));
+ if (error == 0) {
+ bcopy(&u.ci64, data, sizeof(u.ci64));
+ }
break;
}
/* NOTREACHED */
}
- return (error);
+ return error;
}
static __attribute__((noinline)) int
VERIFY(ifp != NULL);
switch (cmd) {
- case SIOCLL_START_32: /* struct in6_aliasreq_32 */
- case SIOCLL_START_64: /* struct in6_aliasreq_64 */
+ case SIOCLL_START_32: /* struct in6_aliasreq_32 */
+ case SIOCLL_START_64: /* struct in6_aliasreq_64 */
is64 = (cmd == SIOCLL_START_64);
/*
* Convert user ifra to the kernel form, when appropriate.
* be done here. They are currently done in in6_ifattach_aux()
* for the interfaces that need it.
*/
- if ((ifp->if_eflags & IFEF_NOAUTOIPV6LL) != 0 &&
- ifra->ifra_addr.sin6_family == AF_INET6 &&
+ if (ifra->ifra_addr.sin6_family == AF_INET6 &&
/* Only check ifra_dstaddr if valid */
(ifra->ifra_dstaddr.sin6_len == 0 ||
ifra->ifra_dstaddr.sin6_family == AF_INET6)) {
- /* some interfaces may provide LinkLocal addresses */
+ /* some interfaces may provide LinkLocal addresses */
error = in6_ifattach_aliasreq(ifp, NULL, ifra);
} else {
error = in6_ifattach_aliasreq(ifp, NULL, NULL);
}
- if (error == 0)
+ if (error == 0) {
in6_if_up_dad_start(ifp);
+ }
break;
default:
/* NOTREACHED */
}
- return (error);
+ return error;
}
static __attribute__((noinline)) int
/* Remove link local addresses from interface */
lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
- ia = in6_ifaddrs;
- while (ia != NULL) {
- if (ia->ia_ifa.ifa_ifp != ifp) {
- ia = ia->ia_next;
- continue;
- }
- IFA_LOCK(&ia->ia_ifa);
- if (IN6_IS_ADDR_LINKLOCAL(&ia->ia_addr.sin6_addr)) {
- IFA_ADDREF_LOCKED(&ia->ia_ifa); /* for us */
+ boolean_t from_begining = TRUE;
+ while (from_begining) {
+ from_begining = FALSE;
+ TAILQ_FOREACH(ia, &in6_ifaddrhead, ia6_link) {
+ if (ia->ia_ifa.ifa_ifp != ifp) {
+ continue;
+ }
+ IFA_LOCK(&ia->ia_ifa);
+ if (IN6_IS_ADDR_LINKLOCAL(&ia->ia_addr.sin6_addr)) {
+ IFA_ADDREF_LOCKED(&ia->ia_ifa); /* for us */
+ IFA_UNLOCK(&ia->ia_ifa);
+ lck_rw_done(&in6_ifaddr_rwlock);
+ in6_purgeaddr(&ia->ia_ifa);
+ IFA_REMREF(&ia->ia_ifa); /* for us */
+ lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
+ /*
+ * Purging the address caused in6_ifaddr_rwlock
+ * to be dropped and reacquired;
+ * therefore search again from the beginning
+ * of in6_ifaddrs list.
+ */
+ from_begining = TRUE;
+ break;
+ }
IFA_UNLOCK(&ia->ia_ifa);
- lck_rw_done(&in6_ifaddr_rwlock);
- in6_purgeaddr(&ia->ia_ifa);
- IFA_REMREF(&ia->ia_ifa); /* for us */
- lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
- /*
- * Purging the address caused in6_ifaddr_rwlock
- * to be dropped and reacquired;
- * therefore search again from the beginning
- * of in6_ifaddrs list.
- */
- ia = in6_ifaddrs;
- continue;
}
- IFA_UNLOCK(&ia->ia_ifa);
- ia = ia->ia_next;
}
lck_rw_done(&in6_ifaddr_rwlock);
pr0.ndpr_plen = 64;
pr0.ndpr_ifp = ifp;
pr0.ndpr_prefix.sin6_addr.s6_addr16[0] = IPV6_ADDR_INT16_ULL;
- in6_setscope(&pr0.ndpr_prefix.sin6_addr, ifp, NULL);
+ (void)in6_setscope(&pr0.ndpr_prefix.sin6_addr, ifp, NULL);
pr = nd6_prefix_lookup(&pr0, ND6_PREFIX_EXPIRY_UNSPEC);
if (pr) {
lck_mtx_lock(nd6_mutex);
lck_mtx_unlock(nd6_mutex);
}
- return (0);
+ return 0;
}
+/*
+ * This routine configures secure link local address
+ */
static __attribute__((noinline)) int
in6ctl_cgastart(struct ifnet *ifp, u_long cmd, caddr_t data)
{
- struct in6_llstartreq llsr;
+ struct in6_cgareq llcgasr;
int is64, error = 0;
VERIFY(ifp != NULL);
switch (cmd) {
- case SIOCLL_CGASTART_32: /* struct in6_llstartreq_32 */
- case SIOCLL_CGASTART_64: /* struct in6_llstartreq_64 */
+ case SIOCLL_CGASTART_32: /* struct in6_cgareq_32 */
+ case SIOCLL_CGASTART_64: /* struct in6_cgareq_64 */
is64 = (cmd == SIOCLL_CGASTART_64);
/*
- * Convert user llstartreq to the kernel form, when appropriate.
+ * Convert user cgareq to the kernel form, when appropriate.
* This allows the conversion between different data models
* to be centralized, so that it can be passed around to other
* routines that are expecting the kernel form.
*/
- in6_llstartreq_to_native(data, is64, &llsr);
+ in6_cgareq_copy_from_user(data, is64, &llcgasr);
/*
* NOTE: All the interface specific DLIL attachements
* should be done here. They are currently done in
- * in6_ifattach_llstartreq() for the interfaces that
+ * in6_ifattach_cgareq() for the interfaces that
* need it.
*/
- error = in6_ifattach_llstartreq(ifp, &llsr);
- if (error == 0)
+ error = in6_ifattach_llcgareq(ifp, &llcgasr);
+ if (error == 0) {
in6_if_up_dad_start(ifp);
+ }
break;
default:
/* NOTREACHED */
}
- return (error);
+ return error;
}
/*
VERIFY(ifp != NULL);
- if (ia == NULL)
- return (EADDRNOTAVAIL);
+ if (ia == NULL) {
+ return EADDRNOTAVAIL;
+ }
switch (cmd) {
- case SIOCGIFADDR_IN6: /* struct in6_ifreq */
+ case SIOCGIFADDR_IN6: /* struct in6_ifreq */
IFA_LOCK(&ia->ia_ifa);
- bcopy(&ia->ia_addr, &addr, sizeof (addr));
+ bcopy(&ia->ia_addr, &addr, sizeof(addr));
IFA_UNLOCK(&ia->ia_ifa);
- if ((error = sa6_recoverscope(&addr, TRUE)) != 0)
+ if ((error = sa6_recoverscope(&addr, TRUE)) != 0) {
break;
- bcopy(&addr, &ifr->ifr_addr, sizeof (addr));
+ }
+ bcopy(&addr, &ifr->ifr_addr, sizeof(addr));
break;
- case SIOCGIFDSTADDR_IN6: /* struct in6_ifreq */
+ case SIOCGIFDSTADDR_IN6: /* struct in6_ifreq */
if (!(ifp->if_flags & IFF_POINTOPOINT)) {
error = EINVAL;
break;
* an error?
*/
IFA_LOCK(&ia->ia_ifa);
- bcopy(&ia->ia_dstaddr, &addr, sizeof (addr));
+ bcopy(&ia->ia_dstaddr, &addr, sizeof(addr));
IFA_UNLOCK(&ia->ia_ifa);
- if ((error = sa6_recoverscope(&addr, TRUE)) != 0)
+ if ((error = sa6_recoverscope(&addr, TRUE)) != 0) {
break;
- bcopy(&addr, &ifr->ifr_dstaddr, sizeof (addr));
+ }
+ bcopy(&addr, &ifr->ifr_dstaddr, sizeof(addr));
break;
default:
/* NOTREACHED */
}
- return (error);
+ return error;
}
/*
index = ifp->if_index;
switch (cmd) {
- case SIOCGIFSTAT_IN6: /* struct in6_ifreq */
+ case SIOCGIFSTAT_IN6: /* struct in6_ifreq */
/* N.B.: if_inet6data is never freed once set. */
if (IN6_IFEXTRA(ifp) == NULL) {
/* return (EAFNOSUPPORT)? */
bzero(&ifr->ifr_ifru.ifru_stat,
- sizeof (ifr->ifr_ifru.ifru_stat));
+ sizeof(ifr->ifr_ifru.ifru_stat));
} else {
bcopy(&IN6_IFEXTRA(ifp)->in6_ifstat,
&ifr->ifr_ifru.ifru_stat,
- sizeof (ifr->ifr_ifru.ifru_stat));
+ sizeof(ifr->ifr_ifru.ifru_stat));
}
break;
- case SIOCGIFSTAT_ICMP6: /* struct in6_ifreq */
+ case SIOCGIFSTAT_ICMP6: /* struct in6_ifreq */
/* N.B.: if_inet6data is never freed once set. */
if (IN6_IFEXTRA(ifp) == NULL) {
/* return (EAFNOSUPPORT)? */
- bzero(&ifr->ifr_ifru.ifru_stat,
- sizeof (ifr->ifr_ifru.ifru_icmp6stat));
+ bzero(&ifr->ifr_ifru.ifru_icmp6stat,
+ sizeof(ifr->ifr_ifru.ifru_icmp6stat));
} else {
bcopy(&IN6_IFEXTRA(ifp)->icmp6_ifstat,
&ifr->ifr_ifru.ifru_icmp6stat,
- sizeof (ifr->ifr_ifru.ifru_icmp6stat));
+ sizeof(ifr->ifr_ifru.ifru_icmp6stat));
}
break;
/* NOTREACHED */
}
- return (error);
+ return error;
}
/*
struct timeval caltime;
int error = 0;
- if (ia == NULL)
- return (EADDRNOTAVAIL);
+ if (ia == NULL) {
+ return EADDRNOTAVAIL;
+ }
switch (cmd) {
- case SIOCGIFALIFETIME_IN6: /* struct in6_ifreq */
+ case SIOCGIFALIFETIME_IN6: /* struct in6_ifreq */
IFA_LOCK(&ia->ia_ifa);
/* retrieve time as calendar time (last arg is 1) */
in6ifa_getlifetime(ia, &ia6_lt, 1);
if (p64) {
struct in6_addrlifetime_64 lt;
- bzero(<, sizeof (lt));
+ bzero(<, sizeof(lt));
lt.ia6t_expire = ia6_lt.ia6t_expire;
lt.ia6t_preferred = ia6_lt.ia6t_preferred;
lt.ia6t_vltime = ia6_lt.ia6t_vltime;
lt.ia6t_pltime = ia6_lt.ia6t_pltime;
- bcopy(<, &ifr->ifr_ifru.ifru_lifetime, sizeof (lt));
+ bcopy(<, &ifr->ifr_ifru.ifru_lifetime, sizeof(ifr->ifr_ifru.ifru_lifetime));
} else {
struct in6_addrlifetime_32 lt;
- bzero(<, sizeof (lt));
+ bzero(<, sizeof(lt));
lt.ia6t_expire = (uint32_t)ia6_lt.ia6t_expire;
lt.ia6t_preferred = (uint32_t)ia6_lt.ia6t_preferred;
lt.ia6t_vltime = (uint32_t)ia6_lt.ia6t_vltime;
lt.ia6t_pltime = (uint32_t)ia6_lt.ia6t_pltime;
- bcopy(<, &ifr->ifr_ifru.ifru_lifetime, sizeof (lt));
+ bcopy(<, &ifr->ifr_ifru.ifru_lifetime, sizeof(ifr->ifr_ifru.ifru_lifetime));
}
IFA_UNLOCK(&ia->ia_ifa);
break;
- case SIOCSIFALIFETIME_IN6: /* struct in6_ifreq */
+ case SIOCSIFALIFETIME_IN6: /* struct in6_ifreq */
getmicrotime(&caltime);
/* sanity for overflow - beware unsigned */
if (p64) {
struct in6_addrlifetime_64 lt;
- bcopy(&ifr->ifr_ifru.ifru_lifetime, <, sizeof (lt));
+ bcopy(&ifr->ifr_ifru.ifru_lifetime, <, sizeof(lt));
if (lt.ia6t_vltime != ND6_INFINITE_LIFETIME &&
lt.ia6t_vltime + caltime.tv_sec < caltime.tv_sec) {
error = EINVAL;
} else {
struct in6_addrlifetime_32 lt;
- bcopy(&ifr->ifr_ifru.ifru_lifetime, <, sizeof (lt));
+ bcopy(&ifr->ifr_ifru.ifru_lifetime, <, sizeof(lt));
if (lt.ia6t_vltime != ND6_INFINITE_LIFETIME &&
lt.ia6t_vltime + caltime.tv_sec < caltime.tv_sec) {
error = EINVAL;
if (p64) {
struct in6_addrlifetime_64 lt;
- bcopy(&ifr->ifr_ifru.ifru_lifetime, <, sizeof (lt));
+ bcopy(&ifr->ifr_ifru.ifru_lifetime, <, sizeof(lt));
ia6_lt.ia6t_expire = lt.ia6t_expire;
ia6_lt.ia6t_preferred = lt.ia6t_preferred;
ia6_lt.ia6t_vltime = lt.ia6t_vltime;
} else {
struct in6_addrlifetime_32 lt;
- bcopy(&ifr->ifr_ifru.ifru_lifetime, <, sizeof (lt));
+ bcopy(&ifr->ifr_ifru.ifru_lifetime, <, sizeof(lt));
ia6_lt.ia6t_expire = (uint32_t)lt.ia6t_expire;
ia6_lt.ia6t_preferred = (uint32_t)lt.ia6t_preferred;
ia6_lt.ia6t_vltime = lt.ia6t_vltime;
ia6_lt.ia6t_pltime = lt.ia6t_pltime;
}
/* for sanity */
- if (ia6_lt.ia6t_vltime != ND6_INFINITE_LIFETIME)
+ if (ia6_lt.ia6t_vltime != ND6_INFINITE_LIFETIME) {
ia6_lt.ia6t_expire = timenow + ia6_lt.ia6t_vltime;
- else
+ } else {
ia6_lt.ia6t_expire = 0;
+ }
- if (ia6_lt.ia6t_pltime != ND6_INFINITE_LIFETIME)
+ if (ia6_lt.ia6t_pltime != ND6_INFINITE_LIFETIME) {
ia6_lt.ia6t_preferred = timenow + ia6_lt.ia6t_pltime;
- else
+ } else {
ia6_lt.ia6t_preferred = 0;
+ }
in6ifa_setlifetime(ia, &ia6_lt);
IFA_UNLOCK(&ia->ia_ifa);
/* NOTREACHED */
}
- return (error);
+ return error;
+}
+
+static int
+in6ctl_clat46start(struct ifnet *ifp)
+{
+ struct nd_prefix *pr = NULL;
+ struct nd_prefix *next = NULL;
+ struct in6_ifaddr *ia6 = NULL;
+ int error = 0;
+
+ if (ifp == lo_ifp) {
+ return EINVAL;
+ }
+ /*
+ * Traverse the list of prefixes and find the first non-linklocal
+ * prefix on the interface.
+ * For that found eligible prefix, configure a CLAT46 reserved address.
+ */
+ lck_mtx_lock(nd6_mutex);
+ for (pr = nd_prefix.lh_first; pr; pr = next) {
+ next = pr->ndpr_next;
+
+ NDPR_LOCK(pr);
+ if (pr->ndpr_ifp != ifp) {
+ NDPR_UNLOCK(pr);
+ continue;
+ }
+
+ if (IN6_IS_ADDR_LINKLOCAL(&pr->ndpr_prefix.sin6_addr)) {
+ NDPR_UNLOCK(pr);
+ continue; /* XXX */
+ }
+
+ if (pr->ndpr_raf_auto == 0) {
+ NDPR_UNLOCK(pr);
+ continue;
+ }
+
+ if (pr->ndpr_stateflags & NDPRF_DEFUNCT) {
+ NDPR_UNLOCK(pr);
+ continue;
+ }
+
+ if ((pr->ndpr_stateflags & NDPRF_CLAT46) == 0
+ && pr->ndpr_vltime != 0) {
+ NDPR_ADDREF(pr); /* Take reference for rest of the processing */
+ NDPR_UNLOCK(pr);
+ break;
+ } else {
+ NDPR_UNLOCK(pr);
+ continue;
+ }
+ }
+ lck_mtx_unlock(nd6_mutex);
+
+ if (pr != NULL) {
+ if ((ia6 = in6_pfx_newpersistaddr(pr, FALSE, &error,
+ TRUE, CLAT46_COLLISION_COUNT_OFFSET)) == NULL) {
+ nd6log0(error,
+ "Could not configure CLAT46 address on"
+ " interface %s.\n", ifp->if_xname);
+ } else {
+ IFA_LOCK(&ia6->ia_ifa);
+ NDPR_LOCK(pr);
+ ia6->ia6_ndpr = pr;
+ NDPR_ADDREF(pr); /* for addr reference */
+ pr->ndpr_stateflags |= NDPRF_CLAT46;
+ pr->ndpr_addrcnt++;
+ VERIFY(pr->ndpr_addrcnt != 0);
+ NDPR_UNLOCK(pr);
+ IFA_UNLOCK(&ia6->ia_ifa);
+ IFA_REMREF(&ia6->ia_ifa);
+ ia6 = NULL;
+ /*
+ * A newly added address might affect the status
+ * of other addresses, so we check and update it.
+ * XXX: what if address duplication happens?
+ */
+ lck_mtx_lock(nd6_mutex);
+ pfxlist_onlink_check();
+ lck_mtx_unlock(nd6_mutex);
+ }
+ NDPR_REMREF(pr);
+ }
+ return error;
}
-#define ifa2ia6(ifa) ((struct in6_ifaddr *)(void *)(ifa))
+#define ifa2ia6(ifa) ((struct in6_ifaddr *)(void *)(ifa))
/*
* Generic INET6 control operations (ioctl's).
* ioctls which don't require ifp, may require socket.
*/
switch (cmd) {
- case SIOCAADDRCTL_POLICY: /* struct in6_addrpolicy */
- case SIOCDADDRCTL_POLICY: /* struct in6_addrpolicy */
- if (!privileged)
- return (EPERM);
- return (in6_src_ioctl(cmd, data));
- /* NOTREACHED */
-
- case SIOCDRADD_IN6_32: /* struct in6_defrouter_32 */
- case SIOCDRADD_IN6_64: /* struct in6_defrouter_64 */
- case SIOCDRDEL_IN6_32: /* struct in6_defrouter_32 */
- case SIOCDRDEL_IN6_64: /* struct in6_defrouter_64 */
- if (!privileged)
- return (EPERM);
- return (defrtrlist_ioctl(cmd, data));
- /* NOTREACHED */
-
- case SIOCGASSOCIDS32: /* struct so_aidreq32 */
- case SIOCGASSOCIDS64: /* struct so_aidreq64 */
- return (in6ctl_associd(so, cmd, data));
- /* NOTREACHED */
-
- case SIOCGCONNIDS32: /* struct so_cidreq32 */
- case SIOCGCONNIDS64: /* struct so_cidreq64 */
- return (in6ctl_connid(so, cmd, data));
- /* NOTREACHED */
+ case SIOCAADDRCTL_POLICY: /* struct in6_addrpolicy */
+ case SIOCDADDRCTL_POLICY: /* struct in6_addrpolicy */
+ if (!privileged) {
+ return EPERM;
+ }
+ return in6_src_ioctl(cmd, data);
+ /* NOTREACHED */
- case SIOCGCONNINFO32: /* struct so_cinforeq32 */
- case SIOCGCONNINFO64: /* struct so_cinforeq64 */
- return (in6ctl_conninfo(so, cmd, data));
+ case SIOCDRADD_IN6_32: /* struct in6_defrouter_32 */
+ case SIOCDRADD_IN6_64: /* struct in6_defrouter_64 */
+ case SIOCDRDEL_IN6_32: /* struct in6_defrouter_32 */
+ case SIOCDRDEL_IN6_64: /* struct in6_defrouter_64 */
+ if (!privileged) {
+ return EPERM;
+ }
+ return defrtrlist_ioctl(cmd, data);
+ /* NOTREACHED */
+
+ case SIOCGASSOCIDS32: /* struct so_aidreq32 */
+ case SIOCGASSOCIDS64: /* struct so_aidreq64 */
+ return in6ctl_associd(so, cmd, data);
+ /* NOTREACHED */
+
+ case SIOCGCONNIDS32: /* struct so_cidreq32 */
+ case SIOCGCONNIDS64: /* struct so_cidreq64 */
+ return in6ctl_connid(so, cmd, data);
+ /* NOTREACHED */
+
+ case SIOCGCONNINFO32: /* struct so_cinforeq32 */
+ case SIOCGCONNINFO64: /* struct so_cinforeq64 */
+ return in6ctl_conninfo(so, cmd, data);
/* NOTREACHED */
}
* The rest of ioctls require ifp; reject if we don't have one;
* return ENXIO to be consistent with ifioctl().
*/
- if (ifp == NULL)
- return (ENXIO);
+ if (ifp == NULL) {
+ return ENXIO;
+ }
/*
* Unlock the socket since ifnet_ioctl() may be invoked by
* ioctls which require ifp but not interface address.
*/
switch (cmd) {
- case SIOCAUTOCONF_START: /* struct in6_ifreq */
+ case SIOCAUTOCONF_START: /* struct in6_ifreq */
if (!privileged) {
error = EPERM;
goto done;
error = in6_autoconf(ifp, TRUE);
goto done;
- case SIOCAUTOCONF_STOP: /* struct in6_ifreq */
+ case SIOCAUTOCONF_STOP: /* struct in6_ifreq */
if (!privileged) {
error = EPERM;
goto done;
error = in6_autoconf(ifp, FALSE);
goto done;
- case SIOCLL_START_32: /* struct in6_aliasreq_32 */
- case SIOCLL_START_64: /* struct in6_aliasreq_64 */
+ case SIOCLL_START_32: /* struct in6_aliasreq_32 */
+ case SIOCLL_START_64: /* struct in6_aliasreq_64 */
if (!privileged) {
error = EPERM;
goto done;
error = in6ctl_llstart(ifp, cmd, data);
goto done;
- case SIOCLL_STOP: /* struct in6_ifreq */
+ case SIOCLL_STOP: /* struct in6_ifreq */
if (!privileged) {
error = EPERM;
goto done;
error = in6ctl_llstop(ifp);
goto done;
- case SIOCSETROUTERMODE_IN6: /* struct in6_ifreq */
+ case SIOCCLAT46_START: /* struct in6_ifreq */
+ if (!privileged) {
+ error = EPERM;
+ goto done;
+ }
+ error = in6ctl_clat46start(ifp);
+ if (error == 0) {
+ if_set_eflags(ifp, IFEF_CLAT46);
+ }
+ goto done;
+
+ case SIOCCLAT46_STOP: /* struct in6_ifreq */
if (!privileged) {
error = EPERM;
goto done;
}
- bcopy(&((struct in6_ifreq *)(void *)data)->ifr_intval,
- &intval, sizeof (intval));
- error = in6_setrouter(ifp, intval);
+ /*
+ * Not much to be done here and it might not be needed
+ * It would usually be done when IPv6 configuration is being
+ * flushed.
+ * XXX Probably STOP equivalent is not needed here.
+ */
+ if_clear_eflags(ifp, IFEF_CLAT46);
+ goto done;
+ case SIOCGETROUTERMODE_IN6: /* struct in6_ifreq */
+ intval = ifp->if_ipv6_router_mode;
+ bcopy(&intval, &((struct in6_ifreq *)(void *)data)->ifr_intval,
+ sizeof(intval));
+ goto done;
+ case SIOCSETROUTERMODE_IN6: /* struct in6_ifreq */
+ if (!privileged) {
+ error = EPERM;
+ goto done;
+ }
+ bcopy(&((struct in6_ifreq *)(void *)data)->ifr_intval,
+ &intval, sizeof(intval));
+ switch (intval) {
+ case IPV6_ROUTER_MODE_DISABLED:
+ case IPV6_ROUTER_MODE_EXCLUSIVE:
+ case IPV6_ROUTER_MODE_HYBRID:
+ break;
+ default:
+ error = EINVAL;
+ goto done;
+ }
+ error = in6_setrouter(ifp, (ipv6_router_mode_t)intval);
goto done;
- case SIOCPROTOATTACH_IN6_32: /* struct in6_aliasreq_32 */
- case SIOCPROTOATTACH_IN6_64: /* struct in6_aliasreq_64 */
+ case SIOCPROTOATTACH_IN6_32: /* struct in6_aliasreq_32 */
+ case SIOCPROTOATTACH_IN6_64: /* struct in6_aliasreq_64 */
if (!privileged) {
error = EPERM;
goto done;
error = in6_domifattach(ifp);
goto done;
- case SIOCPROTODETACH_IN6: /* struct in6_ifreq */
+ case SIOCPROTODETACH_IN6: /* struct in6_ifreq */
if (!privileged) {
error = EPERM;
goto done;
/* Cleanup interface routes and addresses */
in6_purgeif(ifp);
- if ((error = proto_unplumb(PF_INET6, ifp)))
+ if ((error = proto_unplumb(PF_INET6, ifp))) {
log(LOG_ERR, "SIOCPROTODETACH_IN6: %s error=%d\n",
if_name(ifp), error);
+ }
goto done;
- case SIOCSNDFLUSH_IN6: /* struct in6_ifreq */
- case SIOCSPFXFLUSH_IN6: /* struct in6_ifreq */
- case SIOCSRTRFLUSH_IN6: /* struct in6_ifreq */
- case SIOCSDEFIFACE_IN6_32: /* struct in6_ndifreq_32 */
- case SIOCSDEFIFACE_IN6_64: /* struct in6_ndifreq_64 */
- case SIOCSIFINFO_FLAGS: /* struct in6_ndireq */
+ case SIOCSNDFLUSH_IN6: /* struct in6_ifreq */
+ case SIOCSPFXFLUSH_IN6: /* struct in6_ifreq */
+ case SIOCSRTRFLUSH_IN6: /* struct in6_ifreq */
+ case SIOCSDEFIFACE_IN6_32: /* struct in6_ndifreq_32 */
+ case SIOCSDEFIFACE_IN6_64: /* struct in6_ndifreq_64 */
+ case SIOCSIFINFO_FLAGS: /* struct in6_ndireq */
+ case SIOCGIFCGAPREP_IN6_32: /* struct in6_cgareq_32 */
+ case SIOCGIFCGAPREP_IN6_64: /* struct in6_cgareq_64 */
+ case SIOCSIFCGAPREP_IN6_32: /* struct in6_cgareq_32 */
+ case SIOCSIFCGAPREP_IN6_64: /* struct in6_cgareq_32 */
if (!privileged) {
error = EPERM;
goto done;
}
- /* FALLTHRU */
- case OSIOCGIFINFO_IN6: /* struct in6_ondireq */
- case SIOCGIFINFO_IN6: /* struct in6_ondireq */
- case SIOCGDRLST_IN6_32: /* struct in6_drlist_32 */
- case SIOCGDRLST_IN6_64: /* struct in6_drlist_64 */
- case SIOCGPRLST_IN6_32: /* struct in6_prlist_32 */
- case SIOCGPRLST_IN6_64: /* struct in6_prlist_64 */
- case SIOCGNBRINFO_IN6_32: /* struct in6_nbrinfo_32 */
- case SIOCGNBRINFO_IN6_64: /* struct in6_nbrinfo_64 */
- case SIOCGDEFIFACE_IN6_32: /* struct in6_ndifreq_32 */
- case SIOCGDEFIFACE_IN6_64: /* struct in6_ndifreq_64 */
+ OS_FALLTHROUGH;
+ case OSIOCGIFINFO_IN6: /* struct in6_ondireq */
+ case SIOCGIFINFO_IN6: /* struct in6_ondireq */
+ case SIOCGDRLST_IN6_32: /* struct in6_drlist_32 */
+ case SIOCGDRLST_IN6_64: /* struct in6_drlist_64 */
+ case SIOCGPRLST_IN6_32: /* struct in6_prlist_32 */
+ case SIOCGPRLST_IN6_64: /* struct in6_prlist_64 */
+ case SIOCGNBRINFO_IN6_32: /* struct in6_nbrinfo_32 */
+ case SIOCGNBRINFO_IN6_64: /* struct in6_nbrinfo_64 */
+ case SIOCGDEFIFACE_IN6_32: /* struct in6_ndifreq_32 */
+ case SIOCGDEFIFACE_IN6_64: /* struct in6_ndifreq_64 */
error = nd6_ioctl(cmd, data, ifp);
goto done;
- case SIOCSIFPREFIX_IN6: /* struct in6_prefixreq (deprecated) */
- case SIOCDIFPREFIX_IN6: /* struct in6_prefixreq (deprecated) */
- case SIOCAIFPREFIX_IN6: /* struct in6_rrenumreq (deprecated) */
- case SIOCCIFPREFIX_IN6: /* struct in6_rrenumreq (deprecated) */
- case SIOCSGIFPREFIX_IN6: /* struct in6_rrenumreq (deprecated) */
- case SIOCGIFPREFIX_IN6: /* struct in6_prefixreq (deprecated) */
+ case SIOCSIFPREFIX_IN6: /* struct in6_prefixreq (deprecated) */
+ case SIOCDIFPREFIX_IN6: /* struct in6_prefixreq (deprecated) */
+ case SIOCAIFPREFIX_IN6: /* struct in6_rrenumreq (deprecated) */
+ case SIOCCIFPREFIX_IN6: /* struct in6_rrenumreq (deprecated) */
+ case SIOCSGIFPREFIX_IN6: /* struct in6_rrenumreq (deprecated) */
+ case SIOCGIFPREFIX_IN6: /* struct in6_prefixreq (deprecated) */
log(LOG_NOTICE,
"prefix ioctls are now invalidated. "
"please use ifconfig.\n");
error = EOPNOTSUPP;
goto done;
- case SIOCSSCOPE6: /* struct in6_ifreq (deprecated) */
- case SIOCGSCOPE6: /* struct in6_ifreq (deprecated) */
- case SIOCGSCOPE6DEF: /* struct in6_ifreq (deprecated) */
+ case SIOCSSCOPE6: /* struct in6_ifreq (deprecated) */
+ case SIOCGSCOPE6: /* struct in6_ifreq (deprecated) */
+ case SIOCGSCOPE6DEF: /* struct in6_ifreq (deprecated) */
error = EOPNOTSUPP;
goto done;
-
- case SIOCLL_CGASTART_32: /* struct in6_llstartreq_32 */
- case SIOCLL_CGASTART_64: /* struct in6_llstartreq_64 */
- if (!privileged)
+
+ case SIOCLL_CGASTART_32: /* struct in6_cgareq_32 */
+ case SIOCLL_CGASTART_64: /* struct in6_cgareq_64 */
+ if (!privileged) {
error = EPERM;
- else
+ } else {
error = in6ctl_cgastart(ifp, cmd, data);
+ }
goto done;
- case SIOCGIFSTAT_IN6: /* struct in6_ifreq */
- case SIOCGIFSTAT_ICMP6: /* struct in6_ifreq */
+ case SIOCGIFSTAT_IN6: /* struct in6_ifreq */
+ case SIOCGIFSTAT_ICMP6: /* struct in6_ifreq */
error = in6ctl_gifstat(ifp, cmd, ifr);
goto done;
}
* ioctls which require interface address; obtain sockaddr_in6.
*/
switch (cmd) {
- case SIOCSIFADDR_IN6: /* struct in6_ifreq (deprecated) */
- case SIOCSIFDSTADDR_IN6: /* struct in6_ifreq (deprecated) */
- case SIOCSIFNETMASK_IN6: /* struct in6_ifreq (deprecated) */
+ case SIOCSIFADDR_IN6: /* struct in6_ifreq (deprecated) */
+ case SIOCSIFDSTADDR_IN6: /* struct in6_ifreq (deprecated) */
+ case SIOCSIFNETMASK_IN6: /* struct in6_ifreq (deprecated) */
/*
* Since IPv6 allows a node to assign multiple addresses
* on a single interface, SIOCSIFxxx ioctls are deprecated.
error = EOPNOTSUPP;
goto done;
- case SIOCAIFADDR_IN6_32: /* struct in6_aliasreq_32 */
- case SIOCAIFADDR_IN6_64: /* struct in6_aliasreq_64 */
+ case SIOCAIFADDR_IN6_32: /* struct in6_aliasreq_32 */
+ case SIOCAIFADDR_IN6_64: /* struct in6_aliasreq_64 */
if (!privileged) {
error = EPERM;
goto done;
- }
+ }
/*
* Convert user ifra to the kernel form, when appropriate.
* This allows the conversion between different data models
*/
ifra = in6_aliasreq_to_native(data,
(cmd == SIOCAIFADDR_IN6_64), &sifra);
- bcopy(&ifra->ifra_addr, &sin6, sizeof (sin6));
+ bcopy(&ifra->ifra_addr, &sin6, sizeof(sin6));
sa6 = &sin6;
break;
- case SIOCDIFADDR_IN6: /* struct in6_ifreq */
- case SIOCSIFALIFETIME_IN6: /* struct in6_ifreq */
+ case SIOCDIFADDR_IN6: /* struct in6_ifreq */
+ case SIOCSIFALIFETIME_IN6: /* struct in6_ifreq */
if (!privileged) {
error = EPERM;
goto done;
}
- /* FALLTHRU */
- case SIOCGIFADDR_IN6: /* struct in6_ifreq */
- case SIOCGIFDSTADDR_IN6: /* struct in6_ifreq */
- case SIOCGIFNETMASK_IN6: /* struct in6_ifreq */
- case SIOCGIFAFLAG_IN6: /* struct in6_ifreq */
- case SIOCGIFALIFETIME_IN6: /* struct in6_ifreq */
- bcopy(&ifr->ifr_addr, &sin6, sizeof (sin6));
+ OS_FALLTHROUGH;
+ case SIOCGIFADDR_IN6: /* struct in6_ifreq */
+ case SIOCGIFDSTADDR_IN6: /* struct in6_ifreq */
+ case SIOCGIFNETMASK_IN6: /* struct in6_ifreq */
+ case SIOCGIFAFLAG_IN6: /* struct in6_ifreq */
+ case SIOCGIFALIFETIME_IN6: /* struct in6_ifreq */
+ bcopy(&ifr->ifr_addr, &sin6, sizeof(sin6));
sa6 = &sin6;
break;
+ case SIOCGIFDSTADDR:
+ case SIOCSIFDSTADDR:
+ case SIOCGIFBRDADDR:
+ case SIOCSIFBRDADDR:
+ case SIOCGIFNETMASK:
+ case SIOCSIFNETMASK:
+ case SIOCGIFADDR:
+ case SIOCSIFADDR:
+ case SIOCAIFADDR:
+ case SIOCDIFADDR:
+ /* Do not handle these AF_INET commands in AF_INET6 path */
+ error = EINVAL;
+ goto done;
}
/*
* SIOCDIFADDR_IN6/SIOCAIFADDR_IN6 specific tests.
*/
switch (cmd) {
- case SIOCDIFADDR_IN6: /* struct in6_ifreq */
+ case SIOCDIFADDR_IN6: /* struct in6_ifreq */
if (ia == NULL) {
error = EADDRNOTAVAIL;
goto done;
}
- /* FALLTHROUGH */
- case SIOCAIFADDR_IN6_32: /* struct in6_aliasreq_32 */
- case SIOCAIFADDR_IN6_64: /* struct in6_aliasreq_64 */
+ OS_FALLTHROUGH;
+ case SIOCAIFADDR_IN6_32: /* struct in6_aliasreq_32 */
+ case SIOCAIFADDR_IN6_64: /* struct in6_aliasreq_64 */
VERIFY(sa6 != NULL);
/*
* We always require users to specify a valid IPv6 address for
* since SIOCDIFADDR_IN6 falls thru above.
*/
if (sa6->sin6_family != AF_INET6 ||
- sa6->sin6_len != sizeof (struct sockaddr_in6)) {
+ sa6->sin6_len != sizeof(struct sockaddr_in6)) {
error = EAFNOSUPPORT;
goto done;
}
* And finally process address-related ioctls.
*/
switch (cmd) {
- case SIOCGIFADDR_IN6: /* struct in6_ifreq */
- /* This interface is basically deprecated. use SIOCGIFCONF. */
- /* FALLTHRU */
- case SIOCGIFDSTADDR_IN6: /* struct in6_ifreq */
+ case SIOCGIFADDR_IN6: /* struct in6_ifreq */
+ /* This interface is basically deprecated. use SIOCGIFCONF. */
+ /* FALLTHRU */
+ case SIOCGIFDSTADDR_IN6: /* struct in6_ifreq */
error = in6ctl_gifaddr(ifp, ia, cmd, ifr);
break;
- case SIOCGIFNETMASK_IN6: /* struct in6_ifreq */
+ case SIOCGIFNETMASK_IN6: /* struct in6_ifreq */
if (ia != NULL) {
IFA_LOCK(&ia->ia_ifa);
bcopy(&ia->ia_prefixmask, &ifr->ifr_addr,
- sizeof (struct sockaddr_in6));
+ sizeof(struct sockaddr_in6));
IFA_UNLOCK(&ia->ia_ifa);
} else {
error = EADDRNOTAVAIL;
}
break;
- case SIOCGIFAFLAG_IN6: /* struct in6_ifreq */
+ case SIOCGIFAFLAG_IN6: /* struct in6_ifreq */
if (ia != NULL) {
IFA_LOCK(&ia->ia_ifa);
bcopy(&ia->ia6_flags, &ifr->ifr_ifru.ifru_flags6,
- sizeof (ifr->ifr_ifru.ifru_flags6));
+ sizeof(ifr->ifr_ifru.ifru_flags6));
IFA_UNLOCK(&ia->ia_ifa);
} else {
error = EADDRNOTAVAIL;
}
break;
- case SIOCGIFALIFETIME_IN6: /* struct in6_ifreq */
- case SIOCSIFALIFETIME_IN6: /* struct in6_ifreq */
+ case SIOCGIFALIFETIME_IN6: /* struct in6_ifreq */
+ case SIOCSIFALIFETIME_IN6: /* struct in6_ifreq */
error = in6ctl_alifetime(ia, cmd, ifr, p64);
break;
- case SIOCAIFADDR_IN6_32: /* struct in6_aliasreq_32 */
- case SIOCAIFADDR_IN6_64: /* struct in6_aliasreq_64 */
+ case SIOCAIFADDR_IN6_32: /* struct in6_aliasreq_32 */
+ case SIOCAIFADDR_IN6_64: /* struct in6_aliasreq_64 */
error = in6ctl_aifaddr(ifp, ifra);
break;
}
done:
- if (ia != NULL)
+ if (ia != NULL) {
IFA_REMREF(&ia->ia_ifa);
- if (so_unlocked)
+ }
+ if (so_unlocked) {
socket_lock(so, 0);
+ }
- return (error);
+ return error;
}
static __attribute__((noinline)) int
in6ctl_aifaddr(struct ifnet *ifp, struct in6_aliasreq *ifra)
{
- int i, error, addtmp, plen;
+ int i, error, addtmp;
+ uint8_t plen;
struct nd_prefix pr0, *pr;
struct in6_ifaddr *ia;
if (error == 0) {
/* PF_INET6 wasn't previously attached */
error = in6_ifattach_aliasreq(ifp, NULL, NULL);
- if (error != 0)
+ if (error != 0) {
goto done;
+ }
in6_if_up_dad_start(ifp);
} else if (error != EEXIST) {
* to the list.
*/
error = in6_update_ifa(ifp, ifra, 0, &ia);
- if (error != 0)
+ if (error != 0) {
goto done;
+ }
VERIFY(ia != NULL);
/* Now, make the prefix on-link on the interface. */
- plen = in6_mask2len(&ifra->ifra_prefixmask.sin6_addr, NULL);
- if (plen == 128)
+ plen = (uint8_t)in6_mask2len(&ifra->ifra_prefixmask.sin6_addr, NULL);
+ if (plen == 128) {
goto done;
+ }
/*
* NOTE: We'd rather create the prefix before the address, but we need
* Convert mask to prefix length (prefixmask has already been validated
* in in6_update_ifa().
*/
- bzero(&pr0, sizeof (pr0));
+ bzero(&pr0, sizeof(pr0));
pr0.ndpr_plen = plen;
pr0.ndpr_ifp = ifp;
pr0.ndpr_prefix = ifra->ifra_addr;
*/
pr0.ndpr_raf_onlink = 1; /* should be configurable? */
pr0.ndpr_raf_auto = !!(ifra->ifra_flags & IN6_IFF_AUTOCONF);
- pr0.ndpr_vltime = ifra->ifra_lifetime.ia6t_vltime;
- pr0.ndpr_pltime = ifra->ifra_lifetime.ia6t_pltime;
+ if (ifra->ifra_flags & (IN6_IFF_AUTOCONF | IN6_IFF_DYNAMIC)) {
+ pr0.ndpr_vltime = ifra->ifra_lifetime.ia6t_vltime;
+ pr0.ndpr_pltime = ifra->ifra_lifetime.ia6t_pltime;
+ } else {
+ pr0.ndpr_vltime = ND6_INFINITE_LIFETIME;
+ pr0.ndpr_pltime = ND6_INFINITE_LIFETIME;
+ }
pr0.ndpr_stateflags |= NDPRF_STATIC;
lck_mtx_init(&pr0.ndpr_lock, ifa_mtx_grp, ifa_mtx_attr);
* route.
*/
error = nd6_prelist_add(&pr0, NULL, &pr, FALSE);
- if (error != 0)
+ if (error != 0) {
goto done;
+ }
if (pr == NULL) {
log(LOG_ERR, "%s: nd6_prelist_add okay, but"
++pr->ndpr_addrcnt;
VERIFY(pr->ndpr_addrcnt != 0);
ia->ia6_ndpr = pr;
- NDPR_ADDREF_LOCKED(pr); /* for addr reference */
+ NDPR_ADDREF(pr); /* for addr reference */
/*
* If this is the first autoconf address from the prefix,
if (addtmp) {
int e;
e = in6_tmpifadd(ia, 1);
- if (e != 0)
+ if (e != 0) {
log(LOG_NOTICE, "%s: failed to create a"
" temporary address, error=%d\n",
__func__, e);
+ }
}
/*
NDPR_REMREF(pr);
done:
- if (ia != NULL)
+ if (ia != NULL) {
IFA_REMREF(&ia->ia_ifa);
- return (error);
+ }
+ return error;
}
static __attribute__((noinline)) void
* Note that in6_purgeaddr() will decrement ndpr_addrcnt.
*/
IFA_LOCK(&ia->ia_ifa);
- bzero(&pr0, sizeof (pr0));
+ bzero(&pr0, sizeof(pr0));
pr0.ndpr_ifp = ifp;
- pr0.ndpr_plen = in6_mask2len(&ia->ia_prefixmask.sin6_addr, NULL);
+ pr0.ndpr_plen = (uint8_t)in6_mask2len(&ia->ia_prefixmask.sin6_addr, NULL);
if (pr0.ndpr_plen == 128) {
IFA_UNLOCK(&ia->ia_ifa);
goto purgeaddr;
VERIFY(ifp != NULL);
- if (ifp->if_flags & IFF_LOOPBACK)
- return (EINVAL);
+ if (ifp->if_flags & IFF_LOOPBACK) {
+ return EINVAL;
+ }
if (enable) {
/*
* SIOCAUTOCONF_START from being set in that mode.
*/
ifnet_lock_exclusive(ifp);
- if (ifp->if_eflags & IFEF_IPV6_ROUTER) {
- ifp->if_eflags &= ~IFEF_ACCEPT_RTADV;
+ if (ifp->if_ipv6_router_mode == IPV6_ROUTER_MODE_EXCLUSIVE) {
+ if_clear_eflags(ifp, IFEF_ACCEPT_RTADV);
error = EBUSY;
} else {
- ifp->if_eflags |= IFEF_ACCEPT_RTADV;
+ if_set_eflags(ifp, IFEF_ACCEPT_RTADV);
}
ifnet_lock_done(ifp);
} else {
struct in6_ifaddr *ia = NULL;
- ifnet_lock_exclusive(ifp);
- ifp->if_eflags &= ~IFEF_ACCEPT_RTADV;
- ifnet_lock_done(ifp);
+ if_clear_eflags(ifp, IFEF_ACCEPT_RTADV);
/* Remove autoconfigured address from interface */
lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
- ia = in6_ifaddrs;
- while (ia != NULL) {
- if (ia->ia_ifa.ifa_ifp != ifp) {
- ia = ia->ia_next;
- continue;
- }
- IFA_LOCK(&ia->ia_ifa);
- if (ia->ia6_flags & IN6_IFF_AUTOCONF) {
- IFA_ADDREF_LOCKED(&ia->ia_ifa); /* for us */
+ boolean_t from_begining = TRUE;
+ while (from_begining) {
+ from_begining = FALSE;
+ TAILQ_FOREACH(ia, &in6_ifaddrhead, ia6_link) {
+ if (ia->ia_ifa.ifa_ifp != ifp) {
+ continue;
+ }
+ IFA_LOCK(&ia->ia_ifa);
+ if (ia->ia6_flags & IN6_IFF_AUTOCONF) {
+ IFA_ADDREF_LOCKED(&ia->ia_ifa); /* for us */
+ IFA_UNLOCK(&ia->ia_ifa);
+ lck_rw_done(&in6_ifaddr_rwlock);
+ in6_purgeaddr(&ia->ia_ifa);
+ IFA_REMREF(&ia->ia_ifa); /* for us */
+ lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
+ /*
+ * Purging the address caused in6_ifaddr_rwlock
+ * to be dropped and reacquired;
+ * therefore search again from the beginning
+ * of in6_ifaddrs list.
+ */
+ from_begining = TRUE;
+ break;
+ }
IFA_UNLOCK(&ia->ia_ifa);
- lck_rw_done(&in6_ifaddr_rwlock);
- in6_purgeaddr(&ia->ia_ifa);
- IFA_REMREF(&ia->ia_ifa); /* for us */
- lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
- /*
- * Purging the address caused in6_ifaddr_rwlock
- * to be dropped and reacquired;
- * therefore search again from the beginning
- * of in6_ifaddrs list.
- */
- ia = in6_ifaddrs;
- continue;
}
- IFA_UNLOCK(&ia->ia_ifa);
- ia = ia->ia_next;
}
lck_rw_done(&in6_ifaddr_rwlock);
}
- return (error);
+ return error;
}
/*
- * Handle SIOCSETROUTERMODE_IN6 to set or clear the IPv6 router mode flag on
- * the interface. Entering or exiting this mode will result in the removal of
+ * Handle SIOCSETROUTERMODE_IN6 to set the IPv6 router mode on the interface
+ * Entering or exiting IPV6_ROUTER_MODE_EXCLUSIVE will result in the removal of
* autoconfigured IPv6 addresses on the interface.
*/
static __attribute__((noinline)) int
-in6_setrouter(struct ifnet *ifp, int enable)
+in6_setrouter(struct ifnet *ifp, ipv6_router_mode_t mode)
{
+ int error = 0;
+ ipv6_router_mode_t prev_mode;
+
VERIFY(ifp != NULL);
- if (ifp->if_flags & IFF_LOOPBACK)
- return (ENODEV);
+ if (ifp->if_flags & IFF_LOOPBACK) {
+ return ENODEV;
+ }
- if (enable) {
+ prev_mode = ifp->if_ipv6_router_mode;
+ if (prev_mode == mode) {
+ /* no mode change, there's nothing to do */
+ return 0;
+ }
+ if (mode == IPV6_ROUTER_MODE_EXCLUSIVE) {
struct nd_ifinfo *ndi = NULL;
ndi = ND_IFINFO(ifp);
}
}
- ifnet_lock_exclusive(ifp);
- if (enable) {
- ifp->if_eflags |= IFEF_IPV6_ROUTER;
- } else {
- ifp->if_eflags &= ~IFEF_IPV6_ROUTER;
- }
- ifnet_lock_done(ifp);
-
+ ifp->if_ipv6_router_mode = mode;
lck_mtx_lock(nd6_mutex);
- defrouter_select(ifp);
+ defrouter_select(ifp, NULL);
lck_mtx_unlock(nd6_mutex);
-
- if_allmulti(ifp, enable);
-
- return (in6_autoconf(ifp, FALSE));
+ if_allmulti(ifp, (mode == IPV6_ROUTER_MODE_EXCLUSIVE));
+ if (mode == IPV6_ROUTER_MODE_EXCLUSIVE ||
+ (prev_mode == IPV6_ROUTER_MODE_EXCLUSIVE
+ && mode == IPV6_ROUTER_MODE_DISABLED)) {
+ error = in6_autoconf(ifp, FALSE);
+ }
+ return error;
}
static int
tmp = *sin6;
error = in6_recoverscope(&tmp, &sin6->sin6_addr, ifp);
- if (error != 0)
- return (error);
+ if (error != 0) {
+ return error;
+ }
id = in6_addr2scopeid(ifp, &tmp.sin6_addr);
- if (tmp.sin6_scope_id == 0)
+ if (tmp.sin6_scope_id == 0) {
tmp.sin6_scope_id = id;
- else if (tmp.sin6_scope_id != id)
- return (EINVAL); /* scope ID mismatch. */
-
+ } else if (tmp.sin6_scope_id != id) {
+ return EINVAL; /* scope ID mismatch. */
+ }
error = in6_embedscope(&tmp.sin6_addr, &tmp, NULL, NULL, NULL);
- if (error != 0)
- return (error);
+ if (error != 0) {
+ return error;
+ }
tmp.sin6_scope_id = 0;
*sin6 = tmp;
- return (0);
+ return 0;
}
+/*
+ * When the address is being configured we should clear out certain flags
+ * coming in from the caller.
+ */
+#define IN6_IFF_CLR_ADDR_FLAG_MASK (~(IN6_IFF_DEPRECATED | IN6_IFF_DETACHED | IN6_IFF_DUPLICATED))
+
static int
in6_ifaupdate_aux(struct in6_ifaddr *ia, struct ifnet *ifp, int ifaupflags)
{
ifa = &ia->ia_ifa;
in6m_sol = NULL;
- nd6log2((LOG_DEBUG, "%s - %s ifp %s ia6_flags 0x%x ifaupflags 0x%x\n",
+ nd6log2(debug, "%s - %s ifp %s ia6_flags 0x%x ifaupflags 0x%x\n",
__func__,
ip6_sprintf(&ia->ia_addr.sin6_addr),
if_name(ia->ia_ifp),
ia->ia6_flags,
- ifaupflags));
+ ifaupflags);
+
+ /*
+ * Just to be safe, always clear certain flags when address
+ * is being configured
+ */
+ ia->ia6_flags &= IN6_IFF_CLR_ADDR_FLAG_MASK;
/*
* Mark the address as tentative before joining multicast addresses,
* so that corresponding MLD responses would not have a tentative
* source address.
*/
- ia->ia6_flags &= ~IN6_IFF_DUPLICATED; /* safety */
- if (in6if_do_dad(ifp))
+ if (in6if_do_dad(ifp)) {
in6_ifaddr_set_dadprogress(ia);
+ /*
+ * Do not delay sending neighbor solicitations when using optimistic
+ * duplicate address detection, c.f. RFC 4429.
+ */
+ if (ia->ia6_flags & IN6_IFF_OPTIMISTIC) {
+ ifaupflags &= ~IN6_IFAUPDATE_DADDELAY;
+ } else {
+ ifaupflags |= IN6_IFAUPDATE_DADDELAY;
+ }
+ } else {
+ /*
+ * If the interface has been marked to not perform
+ * DAD, make sure to reset DAD in progress flags
+ * that may come in from the caller.
+ */
+ ia->ia6_flags &= ~IN6_IFF_DADPROGRESS;
+ }
/* Join necessary multicast groups */
if ((ifp->if_flags & IFF_MULTICAST) != 0) {
-
/* join solicited multicast addr for new host id */
- bzero(&llsol, sizeof (struct in6_addr));
+ bzero(&llsol, sizeof(struct in6_addr));
llsol.s6_addr32[0] = IPV6_ADDR_INT32_MLL;
llsol.s6_addr32[1] = 0;
llsol.s6_addr32[2] = htonl(1);
}
imm = in6_joingroup(ifp, &llsol, &error, delay);
if (imm == NULL) {
- nd6log((LOG_WARNING,
+ nd6log(info,
"%s: addmulti failed for %s on %s (errno=%d)\n",
__func__, ip6_sprintf(&llsol), if_name(ifp),
- error));
+ error);
VERIFY(error != 0);
goto unwind;
}
LIST_INSERT_HEAD(&ia->ia6_memberships, imm, i6mm_chain);
IFA_UNLOCK(ifa);
- bzero(&mltmask, sizeof (mltmask));
- mltmask.sin6_len = sizeof (struct sockaddr_in6);
+ bzero(&mltmask, sizeof(mltmask));
+ mltmask.sin6_len = sizeof(struct sockaddr_in6);
mltmask.sin6_family = AF_INET6;
mltmask.sin6_addr = in6mask32;
-#define MLTMASK_LEN 4 /* mltmask's masklen (=32bit=4octet) */
+#define MLTMASK_LEN 4 /* mltmask's masklen (=32bit=4octet) */
/*
* join link-local all-nodes address
*/
- bzero(&mltaddr, sizeof (mltaddr));
- mltaddr.sin6_len = sizeof (struct sockaddr_in6);
+ bzero(&mltaddr, sizeof(mltaddr));
+ mltaddr.sin6_len = sizeof(struct sockaddr_in6);
mltaddr.sin6_family = AF_INET6;
mltaddr.sin6_addr = in6addr_linklocal_allnodes;
- if ((error = in6_setscope(&mltaddr.sin6_addr, ifp, NULL)) != 0)
+ if ((error = in6_setscope(&mltaddr.sin6_addr, ifp, NULL)) != 0) {
goto unwind; /* XXX: should not fail */
-
+ }
/*
* XXX: do we really need this automatic routes?
* We should probably reconsider this stuff. Most applications
(struct sockaddr *)&ia->ia_addr,
(struct sockaddr *)&mltmask, RTF_UP | RTF_CLONING,
NULL, ia->ia_ifp->if_index);
- if (error)
+ if (error) {
goto unwind;
+ }
} else {
rtfree(rt);
}
imm = in6_joingroup(ifp, &mltaddr.sin6_addr, &error, 0);
if (!imm) {
- nd6log((LOG_WARNING,
+ nd6log(info,
"%s: addmulti failed for %s on %s (errno=%d)\n",
__func__, ip6_sprintf(&mltaddr.sin6_addr),
- if_name(ifp), error));
+ if_name(ifp), error);
VERIFY(error != 0);
goto unwind;
}
/*
* join node information group address
*/
-#define hostnamelen strlen(hostname)
+#define hostnamelen strlen(hostname)
delay = 0;
if ((ifaupflags & IN6_IFAUPDATE_DADDELAY)) {
/*
*/
delay = random() % MAX_RTR_SOLICITATION_DELAY;
}
- if (in6_nigroup(ifp, hostname, hostnamelen, &mltaddr.sin6_addr)
- == 0) {
+ lck_mtx_lock(&hostname_lock);
+ int n = in6_nigroup(ifp, hostname, hostnamelen, &mltaddr.sin6_addr);
+ lck_mtx_unlock(&hostname_lock);
+ if (n == 0) {
imm = in6_joingroup(ifp, &mltaddr.sin6_addr, &error,
delay); /* XXX jinmei */
if (!imm) {
- nd6log((LOG_WARNING,
+ nd6log(info,
"%s: addmulti failed for %s on %s "
"(errno=%d)\n",
__func__, ip6_sprintf(&mltaddr.sin6_addr),
- if_name(ifp), error));
+ if_name(ifp), error);
/* XXX not very fatal, go on... */
error = 0;
} else {
* (ff01::1%ifN, and ff01::%ifN/32)
*/
mltaddr.sin6_addr = in6addr_nodelocal_allnodes;
- if ((error = in6_setscope(&mltaddr.sin6_addr, ifp, NULL)) != 0)
+ if ((error = in6_setscope(&mltaddr.sin6_addr, ifp, NULL)) != 0) {
goto unwind; /* XXX: should not fail */
+ }
/* XXX: again, do we really need the route? */
rt = rtalloc1_scoped((struct sockaddr *)&mltaddr, 0, 0UL,
ia->ia_ifp->if_index);
(struct sockaddr *)&ia->ia_addr,
(struct sockaddr *)&mltmask, RTF_UP | RTF_CLONING,
NULL, ia->ia_ifp->if_index);
- if (error)
+ if (error) {
goto unwind;
- } else
+ }
+ } else {
rtfree(rt);
+ }
imm = in6_joingroup(ifp, &mltaddr.sin6_addr, &error, 0);
if (!imm) {
- nd6log((LOG_WARNING,
+ nd6log(info,
"%s: addmulti failed for %s on %s (errno=%d)\n",
__func__, ip6_sprintf(&mltaddr.sin6_addr),
- if_name(ifp), error));
+ if_name(ifp), error);
VERIFY(error != 0);
goto unwind;
}
IFA_LOCK(ifa);
LIST_INSERT_HEAD(&ia->ia6_memberships, imm, i6mm_chain);
IFA_UNLOCK(ifa);
- }
-#undef MLTMASK_LEN
+#undef MLTMASK_LEN
- /* Ensure nd6_service() is scheduled as soon as it's convenient */
- ++nd6_sched_timeout_want;
+ /*
+ * create a ff00::/8 route
+ */
+ bzero(&mltmask, sizeof(mltmask));
+ mltmask.sin6_len = sizeof(struct sockaddr_in6);
+ mltmask.sin6_family = AF_INET6;
+ mltmask.sin6_addr = in6mask8;
+#define MLTMASK_LEN_8_BITS 1 /* ff00::/8 mltmask's masklen (=8bit=1octet) */
- /*
- * Perform DAD, if needed.
- * XXX It may be of use, if we can administratively
- * disable DAD.
- */
- IFA_LOCK_SPIN(ifa);
- if (in6if_do_dad(ifp) && ((ifa->ifa_flags & IN6_IFF_NODAD) == 0) &&
- (ia->ia6_flags & IN6_IFF_DADPROGRESS)) {
- int mindelay, maxdelay;
- int *delayptr, delayval;
+ bzero(&mltaddr, sizeof(mltaddr));
+ mltaddr.sin6_len = sizeof(struct sockaddr_in6);
+ mltaddr.sin6_family = AF_INET6;
+ mltaddr.sin6_addr = in6addr_multicast_prefix;
- IFA_UNLOCK(ifa);
- delayptr = NULL;
+ rt = rtalloc1_scoped((struct sockaddr *)&mltaddr, 0, 0UL,
+ ia->ia_ifp->if_index);
+ if (rt) {
+ if (memcmp(&mltaddr.sin6_addr, &((struct sockaddr_in6 *)
+ (void *)rt_key(rt))->sin6_addr, MLTMASK_LEN_8_BITS)) {
+ rtfree(rt);
+ rt = NULL;
+ }
+ }
+ if (!rt) {
+ error = rtrequest_scoped(RTM_ADD,
+ (struct sockaddr *)&mltaddr,
+ (struct sockaddr *)&ia->ia_addr,
+ (struct sockaddr *)&mltmask, RTF_UP | RTF_CLONING,
+ NULL, ia->ia_ifp->if_index);
+ if (error) {
+ goto unwind;
+ }
+ } else {
+ rtfree(rt);
+ }
+ }
+#undef MLTMASK_LEN_8_BITS
+
+ /* Ensure nd6_service() is scheduled as soon as it's convenient */
+ ++nd6_sched_timeout_want;
+
+ /*
+ * Perform DAD, if:
+ * * Interface is marked to perform DAD, AND
+ * * Address is not marked to skip DAD, AND
+ * * Address is in a pre-DAD state (Tentative or Optimistic)
+ */
+ IFA_LOCK_SPIN(ifa);
+ if (in6if_do_dad(ifp) && (ia->ia6_flags & IN6_IFF_NODAD) == 0 &&
+ (ia->ia6_flags & IN6_IFF_DADPROGRESS) != 0) {
+ int mindelay, maxdelay;
+ int *delayptr, delayval;
+
+ IFA_UNLOCK(ifa);
+ delayptr = NULL;
/*
* Avoid the DAD delay if the caller wants us to skip it.
* This is not compliant with RFC 2461, but it's only being
if (in6m_sol != NULL) {
IN6M_LOCK(in6m_sol);
if (in6m_sol->in6m_state ==
- MLD_REPORTING_MEMBER)
+ MLD_REPORTING_MEMBER) {
mindelay = in6m_sol->in6m_timer;
+ }
IN6M_UNLOCK(in6m_sol);
}
maxdelay = MAX_RTR_SOLICITATION_DELAY * hz;
- if (maxdelay - mindelay == 0)
+ if (maxdelay - mindelay == 0) {
delayval = 0;
- else {
+ } else {
delayval =
(random() % (maxdelay - mindelay)) +
mindelay;
done:
/* release reference held for this routine */
- if (in6m_sol != NULL)
+ if (in6m_sol != NULL) {
IN6M_REMREF(in6m_sol);
- return (error);
+ }
+ return error;
}
/*
* the corresponding operation.
*/
if (ifra->ifra_addr.sin6_family != AF_INET6 ||
- ifra->ifra_addr.sin6_len != sizeof (struct sockaddr_in6)) {
+ ifra->ifra_addr.sin6_len != sizeof(struct sockaddr_in6)) {
error = EAFNOSUPPORT;
goto unwind;
}
/* Validate ifra_prefixmask.sin6_len is properly bounded. */
if (ifra->ifra_prefixmask.sin6_len == 0 ||
- ifra->ifra_prefixmask.sin6_len > sizeof (struct sockaddr_in6)) {
+ ifra->ifra_prefixmask.sin6_len > sizeof(struct sockaddr_in6)) {
error = EINVAL;
goto unwind;
}
/* Validate prefix length extracted from ifra_prefixmask structure. */
- plen = in6_mask2len(&ifra->ifra_prefixmask.sin6_addr,
+ plen = (uint8_t)in6_mask2len(&ifra->ifra_prefixmask.sin6_addr,
(u_char *)&ifra->ifra_prefixmask + ifra->ifra_prefixmask.sin6_len);
if (plen <= 0) {
error = EINVAL;
* address already exists. If so, then we don't allocate and link a
* new one here.
*/
- ia = in6ifa_ifpwithaddr(ifp, &ifra->ifra_addr.sin6_addr);
- if (ia != NULL)
+ struct sockaddr_in6 lookup_address = ifra->ifra_addr;
+ if (IN6_IS_ADDR_LINKLOCAL(&lookup_address.sin6_addr)) {
+ if (lookup_address.sin6_addr.s6_addr16[1] == 0) {
+ /* link ID is not embedded by the user */
+ lookup_address.sin6_addr.s6_addr16[1] =
+ htons(ifp->if_index);
+ } else if (lookup_address.sin6_addr.s6_addr16[1] !=
+ htons(ifp->if_index)) {
+ error = EINVAL; /* link ID contradicts */
+ goto done;
+ }
+ if (lookup_address.sin6_scope_id != 0 &&
+ lookup_address.sin6_scope_id !=
+ (u_int32_t)ifp->if_index) {
+ error = EINVAL;
+ goto done;
+ }
+ }
+
+ ia = in6ifa_ifpwithaddr(ifp, &lookup_address.sin6_addr);
+ if (ia != NULL) {
ifa = &ia->ia_ifa;
+ }
/*
* Validate destination address on interface types that require it.
*/
- if ((ifp->if_flags & (IFF_LOOPBACK|IFF_POINTOPOINT)) != 0) {
+ if ((ifp->if_flags & (IFF_LOOPBACK | IFF_POINTOPOINT)) != 0) {
switch (ifra->ifra_dstaddr.sin6_family) {
case AF_INET6:
if (plen != 128) {
timenow = net_uptime();
if (ia == NULL) {
- int how;
+ zalloc_flags_t how;
/* Is this the first new IPv6 address for the interface? */
ifaupflags |= IN6_IFAUPDATE_NEWADDR;
/* Allocate memory for IPv6 interface address structure. */
- how = !(ifaupflags & IN6_IFAUPDATE_NOWAIT) ? M_WAITOK : 0;
+ how = (ifaupflags & IN6_IFAUPDATE_NOWAIT) ? Z_NOWAIT : Z_WAITOK;
ia = in6_ifaddr_alloc(how);
if (ia == NULL) {
error = ENOBUFS;
* Please enjoy the dancing sea turtle.
*/
IFA_ADDREF(ifa); /* for this and optionally for caller */
+ IA6_HASH_INIT(ia);
ifa->ifa_addr = (struct sockaddr *)&ia->ia_addr;
if (ifra->ifra_dstaddr.sin6_family == AF_INET6 ||
- (ifp->if_flags & (IFF_POINTOPOINT | IFF_LOOPBACK)) != 0)
+ (ifp->if_flags & (IFF_POINTOPOINT | IFF_LOOPBACK)) != 0) {
ifa->ifa_dstaddr = (struct sockaddr *)&ia->ia_dstaddr;
+ }
ifa->ifa_netmask = (struct sockaddr *)&ia->ia_prefixmask;
ifa->ifa_ifp = ifp;
ifa->ifa_metric = ifp->if_metric;
LIST_INIT(&ia->ia6_memberships);
ia->ia_addr.sin6_family = AF_INET6;
- ia->ia_addr.sin6_len = sizeof (ia->ia_addr);
+ ia->ia_addr.sin6_len = sizeof(ia->ia_addr);
ia->ia_addr.sin6_addr = ifra->ifra_addr.sin6_addr;
ia->ia_prefixmask.sin6_family = AF_INET6;
- ia->ia_prefixmask.sin6_len = sizeof (ia->ia_prefixmask);
+ ia->ia_prefixmask.sin6_len = sizeof(ia->ia_prefixmask);
ia->ia_prefixmask.sin6_addr = ifra->ifra_prefixmask.sin6_addr;
error = in6_to_kamescope(&ia->ia_addr, ifp);
- if (error != 0)
+ if (error != 0) {
goto unwind;
+ }
if (ifa->ifa_dstaddr != NULL) {
ia->ia_dstaddr = ifra->ifra_dstaddr;
error = in6_to_kamescope(&ia->ia_dstaddr, ifp);
- if (error != 0)
+ if (error != 0) {
goto unwind;
+ }
}
/* Append to address chains */
ifnet_lock_done(ifp);
lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
- if (in6_ifaddrs != NULL) {
- struct in6_ifaddr *iac;
- for (iac = in6_ifaddrs; iac->ia_next != NULL;
- iac = iac->ia_next)
- continue;
- iac->ia_next = ia;
- } else {
- in6_ifaddrs = ia;
- }
+ TAILQ_INSERT_TAIL(&in6_ifaddrhead, ia, ia6_link);
IFA_ADDREF(ifa); /* hold for in6_ifaddrs link */
lck_rw_done(&in6_ifaddr_rwlock);
} else {
ifa = &ia->ia_ifa;
- ifaupflags &= ~(IN6_IFAUPDATE_NEWADDR|IN6_IFAUPDATE_1STADDR);
+ ifaupflags &= ~(IN6_IFAUPDATE_NEWADDR | IN6_IFAUPDATE_1STADDR);
}
VERIFY(ia != NULL && ifa == &ia->ia_ifa);
*/
ia->ia6_updatetime = ia->ia6_createtime = timenow;
ia6_lt = *lt;
- if (ia6_lt.ia6t_vltime != ND6_INFINITE_LIFETIME)
+ if (ia6_lt.ia6t_vltime != ND6_INFINITE_LIFETIME) {
ia6_lt.ia6t_expire = timenow + ia6_lt.ia6t_vltime;
- else
+ } else {
ia6_lt.ia6t_expire = 0;
- if (ia6_lt.ia6t_pltime != ND6_INFINITE_LIFETIME)
+ }
+ if (ia6_lt.ia6t_pltime != ND6_INFINITE_LIFETIME) {
ia6_lt.ia6t_preferred = timenow + ia6_lt.ia6t_pltime;
- else
+ } else {
ia6_lt.ia6t_preferred = 0;
+ }
in6ifa_setlifetime(ia, &ia6_lt);
/*
ia->ia6_lifetime.ia6ti_preferred = timenow;
}
- /*
- * Do not delay sending neighbor solicitations when using optimistic
- * duplicate address detection, c.f. RFC 4429.
- */
- if ((ia->ia6_flags & IN6_IFF_OPTIMISTIC) == 0)
- ifaupflags |= IN6_IFAUPDATE_DADDELAY;
-
/*
* Update flag or prefix length
*/
/* Further initialization of the interface address */
error = in6_ifinit(ifp, ia, ifaupflags);
- if (error != 0)
+ if (error != 0) {
goto unwind;
+ }
/* Finish updating the address while other tasks are working with it */
error = in6_ifaupdate_aux(ia, ifp, ifaupflags);
- if (error != 0)
+ if (error != 0) {
goto unwind;
+ }
/* Return success (optionally w/ address for caller). */
VERIFY(error == 0);
done:
*iar = ia;
- return (error);
+ return error;
}
void
struct in6_ifaddr *ia = (struct in6_ifaddr *)ifa;
struct in6_multi_mship *imm;
- lck_mtx_assert(nd6_mutex, LCK_MTX_ASSERT_NOTOWNED);
+ LCK_MTX_ASSERT(nd6_mutex, LCK_MTX_ASSERT_NOTOWNED);
/* stop DAD processing */
nd6_dad_stop(ifa);
static void
in6_unlink_ifa(struct in6_ifaddr *ia, struct ifnet *ifp)
{
- struct in6_ifaddr *oia;
+ struct in6_ifaddr *nia;
struct ifaddr *ifa;
int unlinked;
- lck_mtx_assert(nd6_mutex, LCK_MTX_ASSERT_NOTOWNED);
+ LCK_MTX_ASSERT(nd6_mutex, LCK_MTX_ASSERT_NOTOWNED);
ifa = &ia->ia_ifa;
IFA_ADDREF(ifa);
ifnet_lock_exclusive(ifp);
IFA_LOCK(ifa);
- if (ifa->ifa_debug & IFD_ATTACHED)
+ if (ifa->ifa_debug & IFD_ATTACHED) {
if_detach_ifa(ifp, ifa);
+ }
IFA_UNLOCK(ifa);
ifnet_lock_done(ifp);
- unlinked = 1;
+ unlinked = 0;
lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
- oia = ia;
- if (oia == (ia = in6_ifaddrs)) {
- in6_ifaddrs = ia->ia_next;
- } else {
- while (ia->ia_next && (ia->ia_next != oia))
- ia = ia->ia_next;
- if (ia->ia_next) {
- ia->ia_next = oia->ia_next;
- } else {
- /* search failed */
- log(LOG_NOTICE, "%s: search failed.\n", __func__);
- unlinked = 0;
+ TAILQ_FOREACH(nia, &in6_ifaddrhead, ia6_link) {
+ if (ia == nia) {
+ TAILQ_REMOVE(&in6_ifaddrhead, ia, ia6_link);
+ IFA_LOCK(ifa);
+ if (IA6_IS_HASHED(ia)) {
+ in6_iahash_remove(ia);
+ }
+ IFA_UNLOCK(ifa);
+ unlinked = 1;
+ break;
}
}
* of other (detached) addresses, call
* pfxlist_onlink_check().
*/
- ifa = &oia->ia_ifa;
IFA_LOCK(ifa);
- if (oia->ia6_ndpr == NULL) {
- log(LOG_NOTICE, "in6_unlink_ifa: IPv6 address "
- "0x%llx has no prefix\n",
- (uint64_t)VM_KERNEL_ADDRPERM(oia));
- } else {
- struct nd_prefix *pr = oia->ia6_ndpr;
- oia->ia6_flags &= ~IN6_IFF_AUTOCONF;
- oia->ia6_ndpr = NULL;
- NDPR_LOCK(pr);
- VERIFY(pr->ndpr_addrcnt != 0);
- pr->ndpr_addrcnt--;
- NDPR_UNLOCK(pr);
- NDPR_REMREF(pr); /* release addr reference */
+ /*
+ * Only log the below message for addresses other than
+ * link local.
+ * Only one LLA (auto-configured or statically) is allowed
+ * on an interface.
+ * LLA prefix, while added to the prefix list, is not
+ * reference countedi (as it is the only one).
+ * The prefix also never expires on its own as LLAs
+ * have infinite lifetime.
+ *
+ * For now quiece down the log message for LLAs.
+ */
+ if (!IN6_IS_ADDR_LINKLOCAL(&ia->ia_addr.sin6_addr)) {
+ if (ia->ia6_ndpr == NULL) {
+ log(LOG_NOTICE, "in6_unlink_ifa: IPv6 address "
+ "0x%llx has no prefix\n",
+ (uint64_t)VM_KERNEL_ADDRPERM(ia));
+ } else {
+ struct nd_prefix *pr = ia->ia6_ndpr;
+ ia->ia6_flags &= ~IN6_IFF_AUTOCONF;
+ ia->ia6_ndpr = NULL;
+ NDPR_LOCK(pr);
+ VERIFY(pr->ndpr_addrcnt != 0);
+ pr->ndpr_addrcnt--;
+ if (ia->ia6_flags & IN6_IFF_CLAT46) {
+ pr->ndpr_stateflags &= ~NDPRF_CLAT46;
+ }
+ NDPR_UNLOCK(pr);
+ NDPR_REMREF(pr); /* release addr reference */
+ }
}
IFA_UNLOCK(ifa);
lck_rw_done(&in6_ifaddr_rwlock);
- if ((oia->ia6_flags & IN6_IFF_AUTOCONF) != 0) {
+ if ((ia->ia6_flags & IN6_IFF_AUTOCONF) != 0) {
lck_mtx_lock(nd6_mutex);
pfxlist_onlink_check();
lck_mtx_unlock(nd6_mutex);
* Do this only if it's not already unlinked in the event that we lost
* the race, since in6_ifaddr_rwlock was momentarily dropped above.
*/
- if (unlinked)
+ if (unlinked) {
IFA_REMREF(ifa);
+ }
/* release reference held for this routine */
IFA_REMREF(ifa);
{
struct in6_ifaddr *ia;
- if (ifp == NULL)
+ if (ifp == NULL) {
return;
+ }
- lck_mtx_assert(nd6_mutex, LCK_MTX_ASSERT_NOTOWNED);
+ LCK_MTX_ASSERT(nd6_mutex, LCK_MTX_ASSERT_NOTOWNED);
lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
- ia = in6_ifaddrs;
- while (ia != NULL) {
- if (ia->ia_ifa.ifa_ifp != ifp) {
- ia = ia->ia_next;
- continue;
+ boolean_t from_begining = TRUE;
+ while (from_begining) {
+ from_begining = FALSE;
+ TAILQ_FOREACH(ia, &in6_ifaddrhead, ia6_link) {
+ if (ia->ia_ifa.ifa_ifp != ifp) {
+ continue;
+ }
+ IFA_ADDREF(&ia->ia_ifa); /* for us */
+ lck_rw_done(&in6_ifaddr_rwlock);
+ in6_purgeaddr(&ia->ia_ifa);
+ IFA_REMREF(&ia->ia_ifa); /* for us */
+ lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
+ /*
+ * Purging the address would have caused
+ * in6_ifaddr_rwlock to be dropped and reacquired;
+ * therefore search again from the beginning
+ * of in6_ifaddrs list.
+ */
+ from_begining = TRUE;
+ break;
}
- IFA_ADDREF(&ia->ia_ifa); /* for us */
- lck_rw_done(&in6_ifaddr_rwlock);
- in6_purgeaddr(&ia->ia_ifa);
- IFA_REMREF(&ia->ia_ifa); /* for us */
- lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
- /*
- * Purging the address would have caused
- * in6_ifaddr_rwlock to be dropped and reacquired;
- * therefore search again from the beginning
- * of in6_ifaddrs list.
- */
- ia = in6_ifaddrs;
}
lck_rw_done(&in6_ifaddr_rwlock);
error = 0;
ifa = &ia->ia_ifa;
+ lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
+ IFA_LOCK(&ia->ia_ifa);
+ if (IA6_IS_HASHED(ia)) {
+ in6_iahash_remove(ia);
+ }
+ if ((ifp->if_flags & IFF_POINTOPOINT)) {
+ in6_iahash_insert_ptp(ia);
+ } else {
+ in6_iahash_insert(ia);
+ }
+ IFA_UNLOCK(&ia->ia_ifa);
+ lck_rw_done(&in6_ifaddr_rwlock);
+
/*
* NOTE: SIOCSIFADDR is defined with struct ifreq as parameter,
* but here we are sending it down to the interface with a pointer
if ((ifaupflags & IN6_IFAUPDATE_1STADDR) != 0) {
error = ifnet_ioctl(ifp, PF_INET6, SIOCSIFADDR, ia);
if (error != 0) {
- if (error != EOPNOTSUPP)
- return (error);
+ if (error != EOPNOTSUPP) {
+ goto failed;
+ }
error = 0;
}
}
ia->ia_dstaddr.sin6_family == AF_INET6) {
IFA_UNLOCK(ifa);
error = rtinit(ifa, RTM_ADD, RTF_UP | RTF_HOST);
- if (error != 0)
- return (error);
+ if (error != 0) {
+ goto failed;
+ }
IFA_LOCK(ifa);
ia->ia_flags |= IFA_ROUTE;
}
IFA_UNLOCK(ifa);
/* Add ownaddr as loopback rtentry, if necessary (ex. on p2p link). */
- if ((ifaupflags & IN6_IFAUPDATE_NEWADDR) != 0)
+ if ((ifaupflags & IN6_IFAUPDATE_NEWADDR) != 0) {
in6_ifaddloop(ifa);
+ }
/* invalidate route caches */
routegenid_inet6_update();
VERIFY(error == 0);
- return (0);
+ return 0;
+failed:
+ VERIFY(error != 0);
+ lck_rw_lock_exclusive(&in6_ifaddr_rwlock);
+ IFA_LOCK(&ia->ia_ifa);
+ if (IA6_IS_HASHED(ia)) {
+ in6_iahash_remove(ia);
+ }
+ IFA_UNLOCK(&ia->ia_ifa);
+ lck_rw_done(&in6_ifaddr_rwlock);
+
+ return error;
}
void
* Find an IPv6 interface link-local address specific to an interface.
*/
struct in6_ifaddr *
-in6ifa_ifpforlinklocal(ifp, ignoreflags)
- struct ifnet *ifp;
- int ignoreflags;
+in6ifa_ifpforlinklocal(struct ifnet *ifp, int ignoreflags)
{
struct ifaddr *ifa;
IFA_UNLOCK(ifa);
continue;
}
- IFA_ADDREF_LOCKED(ifa); /* for caller */
+ IFA_ADDREF_LOCKED(ifa); /* for caller */
+ IFA_UNLOCK(ifa);
+ break;
+ }
+ IFA_UNLOCK(ifa);
+ }
+ ifnet_lock_done(ifp);
+
+ return (struct in6_ifaddr *)ifa;
+}
+
+struct in6_ifaddr *
+in6ifa_ifpwithflag(struct ifnet * ifp, int flag)
+{
+ struct ifaddr *ifa;
+
+ ifnet_lock_shared(ifp);
+ TAILQ_FOREACH(ifa, &ifp->if_addrlist, ifa_list)
+ {
+ IFA_LOCK_SPIN(ifa);
+ if (ifa->ifa_addr->sa_family != AF_INET6) {
+ IFA_UNLOCK(ifa);
+ continue;
+ }
+ if ((((struct in6_ifaddr *)ifa)->ia6_flags & flag) == flag) {
+ IFA_ADDREF_LOCKED(ifa);
IFA_UNLOCK(ifa);
break;
}
}
ifnet_lock_done(ifp);
- return ((struct in6_ifaddr *)ifa);
+ return (struct in6_ifaddr *)ifa;
}
/*
* find the internet address corresponding to a given interface and address.
*/
struct in6_ifaddr *
-in6ifa_ifpwithaddr(ifp, addr)
- struct ifnet *ifp;
- struct in6_addr *addr;
+in6ifa_ifpwithaddr(struct ifnet *ifp, struct in6_addr *addr)
{
struct ifaddr *ifa;
continue;
}
if (IN6_ARE_ADDR_EQUAL(addr, IFA_IN6(ifa))) {
- IFA_ADDREF_LOCKED(ifa); /* for caller */
+ IFA_ADDREF_LOCKED(ifa); /* for caller */
IFA_UNLOCK(ifa);
break;
}
}
ifnet_lock_done(ifp);
- return ((struct in6_ifaddr *)ifa);
+ return (struct in6_ifaddr *)ifa;
}
struct in6_ifaddr *
struct in6_ifaddr *ia;
lck_rw_lock_shared(&in6_ifaddr_rwlock);
- for (ia = in6_ifaddrs; ia; ia = ia->ia_next) {
+ TAILQ_FOREACH(ia, IN6ADDR_HASH(addr), ia6_hash) {
IFA_LOCK(&ia->ia_ifa);
if (IN6_ARE_ADDR_EQUAL(addr, IFA_IN6(&ia->ia_ifa))) {
- IFA_ADDREF_LOCKED(&ia->ia_ifa); /* for caller */
+ IFA_ADDREF_LOCKED(&ia->ia_ifa); /* for caller */
IFA_UNLOCK(&ia->ia_ifa);
break;
}
ia = NULL;
}
- return (ia);
+ return ia;
}
void
if (iscalendar) {
if (t_src->ia6ti_expire != 0 &&
- t_src->ia6ti_vltime != ND6_INFINITE_LIFETIME)
+ t_src->ia6ti_vltime != ND6_INFINITE_LIFETIME) {
t_dst->ia6t_expire = t_src->ia6ti_base_calendartime +
t_src->ia6ti_expire - t_src->ia6ti_base_uptime;
+ }
if (t_src->ia6ti_preferred != 0 &&
- t_src->ia6ti_pltime != ND6_INFINITE_LIFETIME)
+ t_src->ia6ti_pltime != ND6_INFINITE_LIFETIME) {
t_dst->ia6t_preferred = t_src->ia6ti_base_calendartime +
t_src->ia6ti_preferred - t_src->ia6ti_base_uptime;
+ }
} else {
if (t_src->ia6ti_expire != 0 &&
- t_src->ia6ti_vltime != ND6_INFINITE_LIFETIME)
+ t_src->ia6ti_vltime != ND6_INFINITE_LIFETIME) {
t_dst->ia6t_expire = t_src->ia6ti_expire;
+ }
if (t_src->ia6ti_preferred != 0 &&
- t_src->ia6ti_pltime != ND6_INFINITE_LIFETIME)
+ t_src->ia6ti_pltime != ND6_INFINITE_LIFETIME) {
t_dst->ia6t_preferred = t_src->ia6ti_preferred;
+ }
}
}
for (i = 0; i < 8; i++) {
if (dcolon == 1) {
if (*a == 0) {
- if (i == 7)
+ if (i == 7) {
*cp++ = ':';
+ }
a++;
continue;
- } else
+ } else {
dcolon = 2;
+ }
}
if (*a == 0) {
if (dcolon == 0 && *(a + 1) == 0) {
- if (i == 0)
+ if (i == 0) {
*cp++ = ':';
+ }
*cp++ = ':';
dcolon = 1;
} else {
*cp++ = digits[n];
zpad = 1;
}
- if ((n = *d & 0xf) != 0 || zpad)
+ if ((n = *d & 0xf) != 0 || zpad) {
*cp++ = digits[n];
+ }
*cp++ = ':';
a++;
}
*--cp = 0;
- return (ip6buf[ip6round]);
+ return ip6buf[ip6round];
}
int
struct sockaddr_in6 sin6;
int local = 0;
- if (IN6_IS_ADDR_LOOPBACK(in6) || IN6_IS_SCOPE_LINKLOCAL(in6))
- return (1);
+ if (IN6_IS_ADDR_LOOPBACK(in6) || IN6_IS_SCOPE_LINKLOCAL(in6)) {
+ return 1;
+ }
sin6.sin6_family = AF_INET6;
- sin6.sin6_len = sizeof (sin6);
- bcopy(in6, &sin6.sin6_addr, sizeof (*in6));
+ sin6.sin6_len = sizeof(sin6);
+ bcopy(in6, &sin6.sin6_addr, sizeof(*in6));
rt = rtalloc1((struct sockaddr *)&sin6, 0, 0);
if (rt != NULL) {
RT_LOCK_SPIN(rt);
- if (rt->rt_gateway->sa_family == AF_LINK)
+ if (rt->rt_gateway->sa_family == AF_LINK) {
local = 1;
+ }
RT_UNLOCK(rt);
rtfree(rt);
} else {
local = in6_localaddr(in6);
}
- return (local);
+ return local;
}
int
{
struct in6_ifaddr *ia;
- if (IN6_IS_ADDR_LOOPBACK(in6) || IN6_IS_ADDR_LINKLOCAL(in6))
- return (1);
+ if (IN6_IS_ADDR_LOOPBACK(in6) || IN6_IS_ADDR_LINKLOCAL(in6) || IN6_IS_ADDR_MC_UNICAST_BASED_LINKLOCAL(in6)) {
+ return 1;
+ }
lck_rw_lock_shared(&in6_ifaddr_rwlock);
- for (ia = in6_ifaddrs; ia; ia = ia->ia_next) {
+ TAILQ_FOREACH(ia, &in6_ifaddrhead, ia6_link) {
IFA_LOCK_SPIN(&ia->ia_ifa);
if (IN6_ARE_MASKED_ADDR_EQUAL(in6, &ia->ia_addr.sin6_addr,
&ia->ia_prefixmask.sin6_addr)) {
IFA_UNLOCK(&ia->ia_ifa);
lck_rw_done(&in6_ifaddr_rwlock);
- return (1);
+ return 1;
}
IFA_UNLOCK(&ia->ia_ifa);
}
lck_rw_done(&in6_ifaddr_rwlock);
- return (0);
-}
-
-int
-in6_is_addr_deprecated(struct sockaddr_in6 *sa6)
-{
- struct in6_ifaddr *ia;
-
- lck_rw_lock_shared(&in6_ifaddr_rwlock);
- for (ia = in6_ifaddrs; ia; ia = ia->ia_next) {
- IFA_LOCK_SPIN(&ia->ia_ifa);
- if (IN6_ARE_ADDR_EQUAL(&ia->ia_addr.sin6_addr,
- &sa6->sin6_addr) &&
- (ia->ia6_flags & IN6_IFF_DEPRECATED) != 0) {
- IFA_UNLOCK(&ia->ia_ifa);
- lck_rw_done(&in6_ifaddr_rwlock);
- return (1); /* true */
- }
- /* XXX: do we still have to go thru the rest of the list? */
- IFA_UNLOCK(&ia->ia_ifa);
- }
-
- lck_rw_done(&in6_ifaddr_rwlock);
- return (0); /* false */
+ return 0;
}
/*
* hard coding...
*/
int
-in6_matchlen(src, dst)
-struct in6_addr *src, *dst;
+in6_matchlen(struct in6_addr *src, struct in6_addr *dst)
{
int match = 0;
u_char *s = (u_char *)src, *d = (u_char *)dst;
u_char *lim = s + 16, r;
- while (s < lim)
+ while (s < lim) {
if ((r = (*d++ ^ *s++)) != 0) {
while (r < 128) {
match++;
r <<= 1;
}
break;
- } else
+ } else {
match += 8;
- return (match);
+ }
+ }
+ return match;
}
/* XXX: to be scope conscious */
int
-in6_are_prefix_equal(p1, p2, len)
- struct in6_addr *p1, *p2;
- int len;
+in6_are_prefix_equal(struct in6_addr *p1, struct in6_addr *p2, int len)
{
int bytelen, bitlen;
/* sanity check */
if (0 > len || len > 128) {
log(LOG_ERR, "%s: invalid prefix length(%d)\n", __func__, len);
- return (0);
+ return 0;
}
bytelen = len / 8;
bitlen = len % 8;
- if (bcmp(&p1->s6_addr, &p2->s6_addr, bytelen))
- return (0);
+ if (bcmp(&p1->s6_addr, &p2->s6_addr, bytelen)) {
+ return 0;
+ }
if (bitlen != 0 &&
p1->s6_addr[bytelen] >> (8 - bitlen) !=
- p2->s6_addr[bytelen] >> (8 - bitlen))
- return (0);
+ p2->s6_addr[bytelen] >> (8 - bitlen)) {
+ return 0;
+ }
- return (1);
+ return 1;
}
void
-in6_prefixlen2mask(maskp, len)
- struct in6_addr *maskp;
- int len;
+in6_prefixlen2mask(struct in6_addr *maskp, int len)
{
u_char maskarray[8] = {0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff};
int bytelen, bitlen, i;
return;
}
- bzero(maskp, sizeof (*maskp));
+ bzero(maskp, sizeof(*maskp));
bytelen = len / 8;
bitlen = len % 8;
- for (i = 0; i < bytelen; i++)
+ for (i = 0; i < bytelen; i++) {
maskp->s6_addr[i] = 0xff;
- if (bitlen)
+ }
+ if (bitlen) {
maskp->s6_addr[bytelen] = maskarray[bitlen - 1];
+ }
}
/*
struct in6_ifaddr *
in6_ifawithscope(struct ifnet *oifp, struct in6_addr *dst)
{
- int dst_scope = in6_addrscope(dst), src_scope, best_scope = 0;
+ int dst_scope = in6_addrscope(dst), src_scope, best_scope = 0;
int blen = -1;
struct ifaddr *ifa;
struct ifnet *ifp;
struct in6_ifaddr *ifa_best = NULL;
if (oifp == NULL) {
- return (NULL);
+ return NULL;
}
/*
* We can never take an address that breaks the scope zone
* of the destination.
*/
- if (in6_addr2scopeid(ifp, dst) != in6_addr2scopeid(oifp, dst))
+ if (in6_addr2scopeid(ifp, dst) != in6_addr2scopeid(oifp, dst)) {
continue;
+ }
ifnet_lock_shared(ifp);
TAILQ_FOREACH(ifa, &ifp->if_addrlist, ifa_list) {
* nor a duplicated address.
*/
if (((struct in6_ifaddr *)ifa)->ia6_flags &
- IN6_IFF_NOTREADY) {
+ (IN6_IFF_NOTREADY | IN6_IFF_CLAT46)) {
IFA_UNLOCK(ifa);
continue;
}
* If this is the first address we find,
* keep it anyway.
*/
- if (ifa_best == NULL)
+ if (ifa_best == NULL) {
goto replace;
+ }
/*
* ifa_best is never NULL beyond this line except
* scope(src) >= scope(dst))
*/
if (IN6_ARE_SCOPE_CMP(best_scope, dst_scope) < 0 &&
- IN6_ARE_SCOPE_CMP(src_scope, dst_scope) >= 0)
+ IN6_ARE_SCOPE_CMP(src_scope, dst_scope) >= 0) {
goto replace; /* (A) */
+ }
if (IN6_ARE_SCOPE_CMP(src_scope, dst_scope) < 0 &&
IN6_ARE_SCOPE_CMP(best_scope, dst_scope) >= 0) {
IFA_UNLOCK(ifa);
*/
if ((ifa_best->ia6_flags & IN6_IFF_DEPRECATED) &&
(((struct in6_ifaddr *)ifa)->ia6_flags &
- IN6_IFF_DEPRECATED) == 0)
+ IN6_IFF_DEPRECATED) == 0) {
goto replace;
+ }
/*
* When we use temporary addresses described in
ifat = (struct in6_ifaddr *)ifa;
if ((ifa_best->ia6_flags &
- (IN6_IFF_AUTOCONF|IN6_IFF_TEMPORARY))
+ (IN6_IFF_AUTOCONF | IN6_IFF_TEMPORARY))
== IN6_IFF_AUTOCONF &&
(ifat->ia6_flags &
- (IN6_IFF_AUTOCONF|IN6_IFF_TEMPORARY))
- == (IN6_IFF_AUTOCONF|IN6_IFF_TEMPORARY)) {
+ (IN6_IFF_AUTOCONF | IN6_IFF_TEMPORARY))
+ == (IN6_IFF_AUTOCONF | IN6_IFF_TEMPORARY)) {
goto replace;
}
if ((ifa_best->ia6_flags &
- (IN6_IFF_AUTOCONF|IN6_IFF_TEMPORARY))
- == (IN6_IFF_AUTOCONF|IN6_IFF_TEMPORARY) &&
+ (IN6_IFF_AUTOCONF | IN6_IFF_TEMPORARY))
+ == (IN6_IFF_AUTOCONF | IN6_IFF_TEMPORARY) &&
(ifat->ia6_flags &
- (IN6_IFF_AUTOCONF|IN6_IFF_TEMPORARY))
+ (IN6_IFF_AUTOCONF | IN6_IFF_TEMPORARY))
== IN6_IFF_AUTOCONF) {
IFA_UNLOCK(ifa);
continue;
IFA_UNLOCK(ifa);
continue;
}
- if (bifp != oifp && ifp == oifp) /* (2) */
+ if (bifp != oifp && ifp == oifp) { /* (2) */
goto replace;
+ }
/*
* Both bifp and ifp are on the outgoing
*/
tlen = in6_matchlen(IFA_IN6(ifa), dst);
matchcmp = tlen - blen;
- if (matchcmp > 0) /* (3) */
+ if (matchcmp > 0) { /* (3) */
goto replace;
+ }
IFA_UNLOCK(ifa);
continue; /* (4) */
}
goto replace; /* (6) */
}
if (dscopecmp < 0) {
- if (bscopecmp > 0) /* (7) */
+ if (bscopecmp > 0) { /* (7) */
goto replace;
+ }
IFA_UNLOCK(ifa);
continue; /* (8) */
}
/* now dscopecmp must be 0 */
- if (bscopecmp < 0)
+ if (bscopecmp < 0) {
goto replace; /* (9) */
-
+ }
replace:
- IFA_ADDREF_LOCKED(ifa); /* for ifa_best */
+ IFA_ADDREF_LOCKED(ifa); /* for ifa_best */
blen = tlen >= 0 ? tlen :
in6_matchlen(IFA_IN6(ifa), dst);
best_scope =
in6_addrscope(&ifa2ia6(ifa)->ia_addr.sin6_addr);
IFA_UNLOCK(ifa);
- if (ifa_best)
+ if (ifa_best) {
IFA_REMREF(&ifa_best->ia_ifa);
+ }
ifa_best = (struct in6_ifaddr *)ifa;
}
ifnet_lock_done(ifp);
ifnet_head_done();
/* count statistics for future improvements */
- if (ifa_best == NULL)
+ if (ifa_best == NULL) {
ip6stat.ip6s_sources_none++;
- else {
+ } else {
IFA_LOCK_SPIN(&ifa_best->ia_ifa);
- if (oifp == ifa_best->ia_ifp)
+ if (oifp == ifa_best->ia_ifp) {
ip6stat.ip6s_sources_sameif[best_scope]++;
- else
+ } else {
ip6stat.ip6s_sources_otherif[best_scope]++;
+ }
- if (best_scope == dst_scope)
+ if (best_scope == dst_scope) {
ip6stat.ip6s_sources_samescope[best_scope]++;
- else
+ } else {
ip6stat.ip6s_sources_otherscope[best_scope]++;
+ }
- if ((ifa_best->ia6_flags & IN6_IFF_DEPRECATED) != 0)
+ if ((ifa_best->ia6_flags & IN6_IFF_DEPRECATED) != 0) {
ip6stat.ip6s_sources_deprecated[best_scope]++;
+ }
IFA_UNLOCK(&ifa_best->ia_ifa);
}
- return (ifa_best);
+ return ifa_best;
}
/*
struct in6_ifaddr *
in6_ifawithifp(struct ifnet *ifp, struct in6_addr *dst)
{
- int dst_scope = in6_addrscope(dst), blen = -1, tlen;
+ int dst_scope = in6_addrscope(dst), blen = -1, tlen;
struct ifaddr *ifa;
struct in6_ifaddr *besta = NULL;
- struct in6_ifaddr *dep[2]; /* last-resort: deprecated */
+ struct in6_ifaddr *dep[2]; /* last-resort: deprecated */
dep[0] = dep[1] = NULL;
IFA_UNLOCK(ifa);
continue; /* XXX: is there any case to allow anycast? */
}
- if (ifa2ia6(ifa)->ia6_flags & IN6_IFF_NOTREADY) {
+ if (ifa2ia6(ifa)->ia6_flags & (IN6_IFF_NOTREADY | IN6_IFF_CLAT46)) {
IFA_UNLOCK(ifa);
continue; /* don't use this interface */
}
}
if (ifa2ia6(ifa)->ia6_flags & IN6_IFF_DEPRECATED) {
if (ip6_use_deprecated) {
- IFA_ADDREF_LOCKED(ifa); /* for dep[0] */
+ IFA_ADDREF_LOCKED(ifa); /* for dep[0] */
IFA_UNLOCK(ifa);
- if (dep[0] != NULL)
+ if (dep[0] != NULL) {
IFA_REMREF(&dep[0]->ia_ifa);
+ }
dep[0] = (struct in6_ifaddr *)ifa;
} else {
IFA_UNLOCK(ifa);
IFA_UNLOCK(ifa);
IFA_LOCK(&besta->ia_ifa);
blen = in6_matchlen(
- &besta->ia_addr.sin6_addr, dst);
+ &besta->ia_addr.sin6_addr, dst);
IFA_UNLOCK(&besta->ia_ifa);
IFA_LOCK(ifa);
}
tlen = in6_matchlen(IFA_IN6(ifa), dst);
if (tlen > blen) {
blen = tlen;
- IFA_ADDREF_LOCKED(ifa); /* for besta */
+ IFA_ADDREF_LOCKED(ifa); /* for besta */
IFA_UNLOCK(ifa);
IFA_REMREF(&besta->ia_ifa);
besta = (struct in6_ifaddr *)ifa;
}
} else {
besta = (struct in6_ifaddr *)ifa;
- IFA_ADDREF_LOCKED(ifa); /* for besta */
+ IFA_ADDREF_LOCKED(ifa); /* for besta */
IFA_UNLOCK(ifa);
}
} else {
}
if (besta) {
ifnet_lock_done(ifp);
- if (dep[0] != NULL)
+ if (dep[0] != NULL) {
IFA_REMREF(&dep[0]->ia_ifa);
- return (besta);
+ }
+ return besta;
}
TAILQ_FOREACH(ifa, &ifp->if_addrlist, ifa_list) {
IFA_UNLOCK(ifa);
continue; /* XXX: is there any case to allow anycast? */
}
- if (ifa2ia6(ifa)->ia6_flags & IN6_IFF_NOTREADY) {
+ if (ifa2ia6(ifa)->ia6_flags & (IN6_IFF_NOTREADY | IN6_IFF_CLAT46)) {
IFA_UNLOCK(ifa);
continue; /* don't use this interface */
}
}
if (ifa2ia6(ifa)->ia6_flags & IN6_IFF_DEPRECATED) {
if (ip6_use_deprecated) {
- IFA_ADDREF_LOCKED(ifa); /* for dep[1] */
+ IFA_ADDREF_LOCKED(ifa); /* for dep[1] */
IFA_UNLOCK(ifa);
- if (dep[1] != NULL)
+ if (dep[1] != NULL) {
IFA_REMREF(&dep[1]->ia_ifa);
+ }
dep[1] = (struct in6_ifaddr *)ifa;
} else {
IFA_UNLOCK(ifa);
}
continue;
}
- IFA_ADDREF_LOCKED(ifa); /* for caller */
+ IFA_ADDREF_LOCKED(ifa); /* for caller */
IFA_UNLOCK(ifa);
ifnet_lock_done(ifp);
- if (dep[0] != NULL)
+ if (dep[0] != NULL) {
IFA_REMREF(&dep[0]->ia_ifa);
- if (dep[1] != NULL)
+ }
+ if (dep[1] != NULL) {
IFA_REMREF(&dep[1]->ia_ifa);
- return ((struct in6_ifaddr *)ifa);
+ }
+ return (struct in6_ifaddr *)ifa;
}
ifnet_lock_done(ifp);
/* use the last-resort values, that are, deprecated addresses */
if (dep[0]) {
- if (dep[1] != NULL)
+ if (dep[1] != NULL) {
IFA_REMREF(&dep[1]->ia_ifa);
- return (dep[0]);
+ }
+ return dep[0];
+ }
+ if (dep[1]) {
+ return dep[1];
}
- if (dep[1])
- return (dep[1]);
- return (NULL);
+ return NULL;
}
/*
in6_if_up_dad_start(struct ifnet *ifp)
{
struct ifaddr *ifa;
+ struct nd_ifinfo *ndi = NULL;
+
+ ndi = ND_IFINFO(ifp);
+ VERIFY((NULL != ndi) && (TRUE == ndi->initialized));
+ if (!(ndi->flags & ND6_IFF_DAD)) {
+ return;
+ }
/* start DAD on all the interface addresses */
ifnet_lock_exclusive(ifp);
}
ia6 = (struct in6_ifaddr *)ifa;
if (ia6->ia6_flags & IN6_IFF_DADPROGRESS) {
- int delay = 0; /* delay ticks before DAD output */
+ int delay = 0; /* delay ticks before DAD output */
IFA_UNLOCK(ifa);
nd6_dad_start(ifa, &delay);
} else {
in6if_do_dad(
struct ifnet *ifp)
{
- if ((ifp->if_flags & IFF_LOOPBACK) != 0)
- return (0);
+ struct nd_ifinfo *ndi = NULL;
+
+ if ((ifp->if_flags & IFF_LOOPBACK) != 0) {
+ return 0;
+ }
+
+ ndi = ND_IFINFO(ifp);
+ VERIFY((NULL != ndi) && (TRUE == ndi->initialized));
+ if (!(ndi->flags & ND6_IFF_DAD)) {
+ return 0;
+ }
/*
* If we are using the alternative neighbor discovery
* for now, even when not marked as using the alternative
* interface. This is for historical reasons.
*/
- if (ifp->if_eflags &
- (IFEF_IPV6_ND6ALT|IFEF_LOCALNET_PRIVATE|IFEF_DIRECTLINK))
- return (0);
+ if (ifp->if_eflags &
+ (IFEF_IPV6_ND6ALT | IFEF_LOCALNET_PRIVATE | IFEF_DIRECTLINK)) {
+ return 0;
+ }
+
+ if (ifp->if_family == IFNET_FAMILY_IPSEC ||
+ ifp->if_family == IFNET_FAMILY_UTUN) {
+ /*
+ * Ignore DAD for tunneling virtual interfaces, which get
+ * their IPv6 address explicitly assigned.
+ */
+ return 0;
+ }
switch (ifp->if_type) {
#if IFT_DUMMY
* interfaces. We should even omit it, because loop-backed
* NS would confuse the DAD procedure.
*/
- return (0);
+ return 0;
default:
/*
* Our DAD routine requires the interface up and running.
* XXX: we should rather mark "tentative" on such addresses,
* and do DAD after the interface becomes ready.
*/
- if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) !=
- (IFF_UP|IFF_RUNNING))
- return (0);
+ if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) !=
+ (IFF_UP | IFF_RUNNING)) {
+ return 0;
+ }
- return (1);
+ return 1;
}
}
TAILQ_FOREACH(ifp, &ifnet_head, if_list) {
struct nd_ifinfo *ndi = NULL;
- if ((ndi = ND_IFINFO(ifp)) != NULL && !ndi->initialized)
+ if ((ndi = ND_IFINFO(ifp)) != NULL && !ndi->initialized) {
ndi = NULL;
- if (ndi != NULL)
+ }
+ if (ndi != NULL) {
lck_mtx_lock(&ndi->lock);
+ }
if ((ifp->if_flags & IFF_LOOPBACK) == 0 &&
- IN6_LINKMTU(ifp) > maxmtu)
+ IN6_LINKMTU(ifp) > maxmtu) {
maxmtu = IN6_LINKMTU(ifp);
- if (ndi != NULL)
+ }
+ if (ndi != NULL) {
lck_mtx_unlock(&ndi->lock);
+ }
}
ifnet_head_done();
- if (maxmtu) /* update only when maxmtu is positive */
+ if (maxmtu) { /* update only when maxmtu is positive */
in6_maxmtu = maxmtu;
+ }
}
/*
* Provide the length of interface identifiers to be used for the link attached
in6_if2idlen(struct ifnet *ifp)
{
switch (ifp->if_type) {
- case IFT_ETHER: /* RFC2464 */
- case IFT_IEEE8023ADLAG: /* IEEE802.3ad Link Aggregate */
+ case IFT_ETHER: /* RFC2464 */
+ case IFT_IEEE8023ADLAG: /* IEEE802.3ad Link Aggregate */
#ifdef IFT_PROPVIRTUAL
- case IFT_PROPVIRTUAL: /* XXX: no RFC. treat it as ether */
+ case IFT_PROPVIRTUAL: /* XXX: no RFC. treat it as ether */
#endif
#ifdef IFT_L2VLAN
- case IFT_L2VLAN: /* ditto */
+ case IFT_L2VLAN: /* ditto */
#endif
#ifdef IFT_IEEE80211
- case IFT_IEEE80211: /* ditto */
+ case IFT_IEEE80211: /* ditto */
#endif
#ifdef IFT_MIP
- case IFT_MIP: /* ditto */
+ case IFT_MIP: /* ditto */
#endif
- return (64);
- case IFT_FDDI: /* RFC2467 */
- return (64);
- case IFT_ISO88025: /* RFC2470 (IPv6 over Token Ring) */
- return (64);
- case IFT_PPP: /* RFC2472 */
- return (64);
- case IFT_ARCNET: /* RFC2497 */
- return (64);
- case IFT_FRELAY: /* RFC2590 */
- return (64);
- case IFT_IEEE1394: /* RFC3146 */
- return (64);
+ return 64;
+ case IFT_FDDI: /* RFC2467 */
+ return 64;
+ case IFT_ISO88025: /* RFC2470 (IPv6 over Token Ring) */
+ return 64;
+ case IFT_PPP: /* RFC2472 */
+ return 64;
+ case IFT_ARCNET: /* RFC2497 */
+ return 64;
+ case IFT_FRELAY: /* RFC2590 */
+ return 64;
+ case IFT_IEEE1394: /* RFC3146 */
+ return 64;
case IFT_GIF:
- return (64); /* draft-ietf-v6ops-mech-v2-07 */
+ return 64; /* draft-ietf-v6ops-mech-v2-07 */
case IFT_LOOP:
- return (64); /* XXX: is this really correct? */
+ return 64; /* XXX: is this really correct? */
case IFT_OTHER:
- return (64); /* for utun interfaces */
+ return 64; /* for utun interfaces */
case IFT_CELLULAR:
- return (64); /* Packet Data over Cellular */
+ return 64; /* Packet Data over Cellular */
case IFT_BRIDGE:
- return (64); /* Transparent bridge interface */
+ return 64; /* Transparent bridge interface */
+ case IFT_6LOWPAN:
+ return 64; /* 6LoWPAN */
default:
/*
* Unknown link type:
*/
log(LOG_NOTICE, "%s: unknown link type (%d)\n", __func__,
ifp->if_type);
- return (64);
+ return 64;
}
}
/*
void
in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
{
- bzero(sin, sizeof (*sin));
- sin->sin_len = sizeof (struct sockaddr_in);
+ bzero(sin, sizeof(*sin));
+ sin->sin_len = sizeof(struct sockaddr_in);
sin->sin_family = AF_INET;
sin->sin_port = sin6->sin6_port;
sin->sin_addr.s_addr = sin6->sin6_addr.s6_addr32[3];
void
in6_sin_2_v4mapsin6(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
{
- bzero(sin6, sizeof (*sin6));
- sin6->sin6_len = sizeof (struct sockaddr_in6);
+ bzero(sin6, sizeof(*sin6));
+ sin6->sin6_len = sizeof(struct sockaddr_in6);
sin6->sin6_family = AF_INET6;
sin6->sin6_port = sin->sin_port;
sin6->sin6_addr.s6_addr32[0] = 0;
struct sockaddr_in *sin_p;
struct sockaddr_in6 *sin6_p;
- MALLOC(sin6_p, struct sockaddr_in6 *, sizeof (*sin6_p), M_SONAME,
+ MALLOC(sin6_p, struct sockaddr_in6 *, sizeof(*sin6_p), M_SONAME,
M_WAITOK);
- if (sin6_p == NULL)
- return (ENOBUFS);
+ if (sin6_p == NULL) {
+ return ENOBUFS;
+ }
sin_p = (struct sockaddr_in *)(void *)*nam;
in6_sin_2_v4mapsin6(sin_p, sin6_p);
FREE(*nam, M_SONAME);
*nam = (struct sockaddr *)sin6_p;
- return (0);
+ return 0;
}
/*
struct kev_in6_data in6_event_data;
struct in6_addrlifetime ia6_lt;
- bzero(&in6_event_data, sizeof (struct kev_in6_data));
- bzero(&ev_msg, sizeof (struct kev_msg));
- ev_msg.vendor_code = KEV_VENDOR_APPLE;
- ev_msg.kev_class = KEV_NETWORK_CLASS;
- ev_msg.kev_subclass = KEV_INET6_SUBCLASS;
- ev_msg.event_code = event_code;
-
- IFA_LOCK(&ifa->ia_ifa);
- in6_event_data.ia_addr = ifa->ia_addr;
- in6_event_data.ia_net = ifa->ia_net;
- in6_event_data.ia_dstaddr = ifa->ia_dstaddr;
- in6_event_data.ia_prefixmask = ifa->ia_prefixmask;
- in6_event_data.ia_plen = ifa->ia_plen;
- in6_event_data.ia6_flags = (u_int32_t)ifa->ia6_flags;
-
- /* retrieve time as calendar time (last arg is 1) */
- in6ifa_getlifetime(ifa, &ia6_lt, 1);
- in6_event_data.ia_lifetime.ia6t_expire = ia6_lt.ia6t_expire;
- in6_event_data.ia_lifetime.ia6t_preferred = ia6_lt.ia6t_preferred;
- in6_event_data.ia_lifetime.ia6t_vltime = ia6_lt.ia6t_vltime;
- in6_event_data.ia_lifetime.ia6t_pltime = ia6_lt.ia6t_pltime;
- IFA_UNLOCK(&ifa->ia_ifa);
+ bzero(&in6_event_data, sizeof(struct kev_in6_data));
+ bzero(&ev_msg, sizeof(struct kev_msg));
+ ev_msg.vendor_code = KEV_VENDOR_APPLE;
+ ev_msg.kev_class = KEV_NETWORK_CLASS;
+ ev_msg.kev_subclass = KEV_INET6_SUBCLASS;
+ ev_msg.event_code = event_code;
+
+ if (ifa) {
+ IFA_LOCK(&ifa->ia_ifa);
+ in6_event_data.ia_addr = ifa->ia_addr;
+ in6_event_data.ia_net = ifa->ia_net;
+ in6_event_data.ia_dstaddr = ifa->ia_dstaddr;
+ in6_event_data.ia_prefixmask = ifa->ia_prefixmask;
+ in6_event_data.ia_plen = ifa->ia_plen;
+ in6_event_data.ia6_flags = (u_int32_t)ifa->ia6_flags;
+
+ /* retrieve time as calendar time (last arg is 1) */
+ in6ifa_getlifetime(ifa, &ia6_lt, 1);
+ in6_event_data.ia_lifetime.ia6t_expire = (u_int32_t)ia6_lt.ia6t_expire;
+ in6_event_data.ia_lifetime.ia6t_preferred = (u_int32_t)ia6_lt.ia6t_preferred;
+ in6_event_data.ia_lifetime.ia6t_vltime = ia6_lt.ia6t_vltime;
+ in6_event_data.ia_lifetime.ia6t_pltime = ia6_lt.ia6t_pltime;
+ IFA_UNLOCK(&ifa->ia_ifa);
+ }
if (ifp != NULL) {
(void) strlcpy(&in6_event_data.link_data.if_name[0],
in6_event_data.link_data.if_unit = (u_int32_t)ifp->if_unit;
}
- if (mac != NULL)
- memcpy(&in6_event_data.ia_mac, mac,
+ if (mac != NULL) {
+ memcpy(&in6_event_data.ia_mac, mac,
sizeof(in6_event_data.ia_mac));
+ }
ev_msg.dv[0].data_ptr = &in6_event_data;
- ev_msg.dv[0].data_length = sizeof (in6_event_data);
+ ev_msg.dv[0].data_length = sizeof(in6_event_data);
ev_msg.dv[1].data_length = 0;
- kev_post_msg(&ev_msg);
+ dlil_post_complete_msg(NULL, &ev_msg);
}
/*
in6_cga_init();
in6_multi_init();
- PE_parse_boot_argn("ifa_debug", &in6ifa_debug, sizeof (in6ifa_debug));
+ PE_parse_boot_argn("ifa_debug", &in6ifa_debug, sizeof(in6ifa_debug));
- in6ifa_size = (in6ifa_debug == 0) ? sizeof (struct in6_ifaddr) :
- sizeof (struct in6_ifaddr_dbg);
+ vm_size_t in6ifa_size = (in6ifa_debug == 0) ? sizeof(struct in6_ifaddr) :
+ sizeof(struct in6_ifaddr_dbg);
- in6ifa_zone = zinit(in6ifa_size, IN6IFA_ZONE_MAX * in6ifa_size,
- 0, IN6IFA_ZONE_NAME);
- if (in6ifa_zone == NULL) {
- panic("%s: failed allocating %s", __func__, IN6IFA_ZONE_NAME);
- /* NOTREACHED */
- }
- zone_change(in6ifa_zone, Z_EXPAND, TRUE);
- zone_change(in6ifa_zone, Z_CALLERACCT, FALSE);
+ in6ifa_zone = zone_create(IN6IFA_ZONE_NAME, in6ifa_size, ZC_ZFREE_CLEARMEM);
lck_mtx_init(&in6ifa_trash_lock, ifa_mtx_grp, ifa_mtx_attr);
TAILQ_INIT(&in6ifa_trash_head);
}
static struct in6_ifaddr *
-in6_ifaddr_alloc(int how)
+in6_ifaddr_alloc(zalloc_flags_t how)
{
struct in6_ifaddr *in6ifa;
- in6ifa = (how == M_WAITOK) ? zalloc(in6ifa_zone) :
- zalloc_noblock(in6ifa_zone);
+ in6ifa = zalloc_flags(in6ifa_zone, how | Z_ZERO);
if (in6ifa != NULL) {
- bzero(in6ifa, in6ifa_size);
in6ifa->ia_ifa.ifa_free = in6_ifaddr_free;
in6ifa->ia_ifa.ifa_debug |= IFD_ALLOC;
+ in6ifa->ia_ifa.ifa_del_wc = &in6ifa->ia_ifa.ifa_debug;
+ in6ifa->ia_ifa.ifa_del_waiters = 0;
ifa_lock_init(&in6ifa->ia_ifa);
if (in6ifa_debug != 0) {
struct in6_ifaddr_dbg *in6ifa_dbg =
}
}
- return (in6ifa);
+ return in6ifa;
}
static void
(struct in6_ifaddr_dbg *)ifa;
ctrace_record(&in6ifa_dbg->in6ifa_free);
bcopy(&in6ifa_dbg->in6ifa, &in6ifa_dbg->in6ifa_old,
- sizeof (struct in6_ifaddr));
+ sizeof(struct in6_ifaddr));
if (ifa->ifa_debug & IFD_TRASHED) {
/* Become a regular mutex, just in case */
IFA_CONVERT_LOCK(ifa);
}
IFA_UNLOCK(ifa);
ifa_lock_destroy(ifa);
- bzero(ifa, sizeof (struct in6_ifaddr));
+ bzero(ifa, sizeof(struct in6_ifaddr));
zfree(in6ifa_zone, ifa);
}
ctrace_record(&tr[idx]);
}
-static void
-in6_ifaddr_set_dadprogress(struct in6_ifaddr *ia)
-{
- struct ifnet* ifp = ia->ia_ifp;
- uint32_t flags = IN6_IFF_TENTATIVE;
- uint32_t optdad = nd6_optimistic_dad;
-
- if (optdad) {
- if ((ifp->if_eflags & IFEF_IPV6_ROUTER) != 0) {
- optdad = 0;
- } else {
- struct nd_ifinfo *ndi = NULL;
-
- ndi = ND_IFINFO(ifp);
- VERIFY (ndi != NULL && ndi->initialized);
- lck_mtx_lock(&ndi->lock);
- if ((ndi->flags & ND6_IFF_REPLICATED) != 0) {
- optdad = 0;
- }
- lck_mtx_unlock(&ndi->lock);
- }
- }
-
- if (optdad) {
- if ((optdad & ND6_OPTIMISTIC_DAD_LINKLOCAL) &&
- IN6_IS_ADDR_LINKLOCAL(&ia->ia_addr.sin6_addr))
- flags = IN6_IFF_OPTIMISTIC;
- else if ((optdad & ND6_OPTIMISTIC_DAD_AUTOCONF) &&
- (ia->ia6_flags & IN6_IFF_AUTOCONF)) {
- if (ia->ia6_flags & IN6_IFF_TEMPORARY) {
- if (optdad & ND6_OPTIMISTIC_DAD_TEMPORARY)
- flags = IN6_IFF_OPTIMISTIC;
- } else if (ia->ia6_flags & IN6_IFF_SECURED) {
- if (optdad & ND6_OPTIMISTIC_DAD_SECURED)
- flags = IN6_IFF_OPTIMISTIC;
- } else {
- /*
- * Keeping the behavior for temp and CGA
- * SLAAC addresses to have a knob for optimistic
- * DAD.
- * Other than that if ND6_OPTIMISTIC_DAD_AUTOCONF
- * is set, we should default to optimistic
- * DAD.
- * For now this means SLAAC addresses with interface
- * identifier derived from modified EUI-64 bit
- * identifiers.
- */
- flags = IN6_IFF_OPTIMISTIC;
- }
- } else if ((optdad & ND6_OPTIMISTIC_DAD_DYNAMIC) &&
- (ia->ia6_flags & IN6_IFF_DYNAMIC)) {
- if (ia->ia6_flags & IN6_IFF_TEMPORARY) {
- if (optdad & ND6_OPTIMISTIC_DAD_TEMPORARY)
- flags = IN6_IFF_OPTIMISTIC;
- } else {
- flags = IN6_IFF_OPTIMISTIC;
- }
- } else if ((optdad & ND6_OPTIMISTIC_DAD_MANUAL) &&
- (ia->ia6_flags & IN6_IFF_OPTIMISTIC)) {
- /*
- * rdar://17483438
- * Bypass tentative for address assignments
- * not covered above (e.g. manual) upon request
- */
- if (!IN6_IS_ADDR_LINKLOCAL(&ia->ia_addr.sin6_addr) &&
- !(ia->ia6_flags & IN6_IFF_AUTOCONF) &&
- !(ia->ia6_flags & IN6_IFF_DYNAMIC))
- flags = IN6_IFF_OPTIMISTIC;
- }
- }
-
- ia->ia6_flags &= ~(IN6_IFF_DUPLICATED | IN6_IFF_DADPROGRESS);
- ia->ia6_flags |= flags;
-
- nd6log2((LOG_DEBUG, "%s - %s ifp %s ia6_flags 0x%x\n",
- __func__,
- ip6_sprintf(&ia->ia_addr.sin6_addr),
- if_name(ia->ia_ifp),
- ia->ia6_flags));
-}
-
/*
* Handle SIOCGASSOCIDS ioctl for PF_INET6 domain.
*/
struct in6pcb *in6p = sotoin6pcb(so);
sae_associd_t aid;
- if (in6p == NULL || in6p->inp_state == INPCB_STATE_DEAD)
- return (EINVAL);
+ if (in6p == NULL || in6p->inp_state == INPCB_STATE_DEAD) {
+ return EINVAL;
+ }
/* IN6PCB has no concept of association */
aid = SAE_ASSOCID_ANY;
*cnt = 0;
/* just asking how many there are? */
- if (aidp == USER_ADDR_NULL)
- return (0);
+ if (aidp == USER_ADDR_NULL) {
+ return 0;
+ }
- return (copyout(&aid, aidp, sizeof (aid)));
+ return copyout(&aid, aidp, sizeof(aid));
}
/*
struct in6pcb *in6p = sotoin6pcb(so);
sae_connid_t cid;
- if (in6p == NULL || in6p->inp_state == INPCB_STATE_DEAD)
- return (EINVAL);
+ if (in6p == NULL || in6p->inp_state == INPCB_STATE_DEAD) {
+ return EINVAL;
+ }
- if (aid != SAE_ASSOCID_ANY && aid != SAE_ASSOCID_ALL)
- return (EINVAL);
+ if (aid != SAE_ASSOCID_ANY && aid != SAE_ASSOCID_ALL) {
+ return EINVAL;
+ }
/* if connected, return 1 connection count */
*cnt = ((so->so_state & SS_ISCONNECTED) ? 1 : 0);
/* just asking how many there are? */
- if (cidp == USER_ADDR_NULL)
- return (0);
+ if (cidp == USER_ADDR_NULL) {
+ return 0;
+ }
/* if IN6PCB is connected, assign it connid 1 */
cid = ((*cnt != 0) ? 1 : SAE_CONNID_ANY);
- return (copyout(&cid, cidp, sizeof (cid)));
+ return copyout(&cid, cidp, sizeof(cid));
}
/*
* Handle SIOCGCONNINFO ioctl for PF_INET6 domain.
*/
-static int
+int
in6_getconninfo(struct socket *so, sae_connid_t cid, uint32_t *flags,
uint32_t *ifindex, int32_t *soerror, user_addr_t src, socklen_t *src_len,
user_addr_t dst, socklen_t *dst_len, uint32_t *aux_type,
user_addr_t aux_data, uint32_t *aux_len)
{
-#pragma unused(aux_data)
struct in6pcb *in6p = sotoin6pcb(so);
struct sockaddr_in6 sin6;
struct ifnet *ifp = NULL;
*ifindex = ((ifp != NULL) ? ifp->if_index : 0);
*soerror = so->so_error;
*flags = 0;
- if (so->so_state & SS_ISCONNECTED)
+ if (so->so_state & SS_ISCONNECTED) {
*flags |= (CIF_CONNECTED | CIF_PREFERRED);
- if (in6p->in6p_flags & INP_BOUND_IF)
+ }
+ if (in6p->in6p_flags & INP_BOUND_IF) {
*flags |= CIF_BOUND_IF;
- if (!(in6p->in6p_flags & INP_IN6ADDR_ANY))
+ }
+ if (!(in6p->in6p_flags & INP_IN6ADDR_ANY)) {
*flags |= CIF_BOUND_IP;
- if (!(in6p->in6p_flags & INP_ANONPORT))
+ }
+ if (!(in6p->in6p_flags & INP_ANONPORT)) {
*flags |= CIF_BOUND_PORT;
+ }
- bzero(&sin6, sizeof (sin6));
- sin6.sin6_len = sizeof (sin6);
+ bzero(&sin6, sizeof(sin6));
+ sin6.sin6_len = sizeof(sin6);
sin6.sin6_family = AF_INET6;
/* source address and port */
*src_len = sin6.sin6_len;
} else {
if (src != USER_ADDR_NULL) {
- copy_len = min(*src_len, sizeof (sin6));
+ copy_len = min(*src_len, sizeof(sin6));
error = copyout(&sin6, src, copy_len);
- if (error != 0)
+ if (error != 0) {
goto out;
+ }
*src_len = copy_len;
}
}
*dst_len = sin6.sin6_len;
} else {
if (dst != USER_ADDR_NULL) {
- copy_len = min(*dst_len, sizeof (sin6));
+ copy_len = min(*dst_len, sizeof(sin6));
error = copyout(&sin6, dst, copy_len);
- if (error != 0)
+ if (error != 0) {
goto out;
+ }
*dst_len = copy_len;
}
}
- *aux_type = 0;
- *aux_len = 0;
if (SOCK_PROTO(so) == IPPROTO_TCP) {
struct conninfo_tcp tcp_ci;
*aux_type = CIAUX_TCP;
if (*aux_len == 0) {
- *aux_len = sizeof (tcp_ci);
+ *aux_len = sizeof(tcp_ci);
} else {
if (aux_data != USER_ADDR_NULL) {
- copy_len = min(*aux_len, sizeof (tcp_ci));
- bzero(&tcp_ci, sizeof (tcp_ci));
+ copy_len = min(*aux_len, sizeof(tcp_ci));
+ bzero(&tcp_ci, sizeof(tcp_ci));
tcp_getconninfo(so, &tcp_ci);
error = copyout(&tcp_ci, aux_data, copy_len);
- if (error != 0)
+ if (error != 0) {
goto out;
+ }
*aux_len = copy_len;
}
}
+ } else {
+ *aux_type = 0;
+ *aux_len = 0;
}
out:
- return (error);
+ return error;
}
/*
;
}
}
+
+struct in6_llentry {
+ struct llentry base;
+};
+
+#define IN6_LLTBL_DEFAULT_HSIZE 32
+#define IN6_LLTBL_HASH(k, h) \
+ ((((((((k) >> 8) ^ (k)) >> 8) ^ (k)) >> 8) ^ (k)) & ((h) - 1))
+
+/*
+ * Do actual deallocation of @lle.
+ */
+static void
+in6_lltable_destroy_lle_unlocked(struct llentry *lle)
+{
+ LLE_LOCK_DESTROY(lle);
+ LLE_REQ_DESTROY(lle);
+ FREE(lle, M_LLTABLE);
+}
+
+/*
+ * Called by LLE_FREE_LOCKED when number of references
+ * drops to zero.
+ */
+static void
+in6_lltable_destroy_lle(struct llentry *lle)
+{
+ LLE_WUNLOCK(lle);
+ /* XXX TBD */
+ //thread_call_free(lle->lle_timer);
+ in6_lltable_destroy_lle_unlocked(lle);
+}
+
+
+static struct llentry *
+in6_lltable_new(const struct in6_addr *addr6, uint16_t flags)
+{
+#pragma unused(flags)
+ struct in6_llentry *lle;
+
+ MALLOC(lle, struct in6_llentry *, sizeof(struct in6_llentry), M_LLTABLE, M_NOWAIT | M_ZERO);
+ if (lle == NULL) { /* NB: caller generates msg */
+ return NULL;
+ }
+
+ lle->base.r_l3addr.addr6 = *addr6;
+ lle->base.lle_refcnt = 1;
+ lle->base.lle_free = in6_lltable_destroy_lle;
+ LLE_LOCK_INIT(&lle->base);
+ LLE_REQ_INIT(&lle->base);
+#if 0
+ /* XXX TBD */
+ lle->base.lle_timer = thread_call_allocate(nd6_llinfo_timer, lle);
+
+ if (lle->base.lle_timer == NULL) {
+ printf("lle_timer thread call could not be allocated.\n");
+ LLE_LOCK_DESTROY(&lle->base);
+ LLE_REQ_DESTROY(&lle->base);
+ FREE(lle, M_LLTABLE);
+ return NULL;
+ }
+#endif
+ return &lle->base;
+}
+
+static int
+in6_lltable_match_prefix(const struct sockaddr *saddr,
+ const struct sockaddr *smask, uint16_t flags, struct llentry *lle)
+{
+ const struct in6_addr *addr, *mask, *lle_addr;
+
+ addr = &((const struct sockaddr_in6 *)(const void *)saddr)->sin6_addr;
+ mask = &((const struct sockaddr_in6 *)(const void *)smask)->sin6_addr;
+ lle_addr = &lle->r_l3addr.addr6;
+
+ if (IN6_ARE_MASKED_ADDR_EQUAL(lle_addr, addr, mask) == 0) {
+ return 0;
+ }
+
+ if (lle->la_flags & LLE_IFADDR) {
+ /*
+ * Delete LLE_IFADDR records IFF address & flag matches.
+ * Note that addr is the interface address within prefix
+ * being matched.
+ */
+ if (IN6_ARE_ADDR_EQUAL(addr, lle_addr) &&
+ (flags & LLE_STATIC) != 0) {
+ return 1;
+ }
+ return 0;
+ }
+
+ /* flags & LLE_STATIC means deleting both dynamic and static entries */
+ if ((flags & LLE_STATIC) || !(lle->la_flags & LLE_STATIC)) {
+ return 1;
+ }
+
+ return 0;
+}
+
+static void
+in6_lltable_free_entry(struct lltable *llt, struct llentry *lle)
+{
+ struct ifnet *ifp;
+
+ LLE_WLOCK_ASSERT(lle);
+ KASSERT(llt != NULL, ("lltable is NULL"));
+
+ /* Unlink entry from table */
+ if ((lle->la_flags & LLE_LINKED) != 0) {
+ ifp = llt->llt_ifp;
+ if_afdata_wlock_assert(ifp, llt->llt_af);
+ lltable_unlink_entry(llt, lle);
+ }
+
+#if 0
+ /* XXX TBD */
+ if (thread_call_cancel(lle->lle_timer) == TRUE) {
+ LLE_REMREF(lle);
+ }
+#endif
+ llentry_free(lle);
+}
+
+static int
+in6_lltable_rtcheck(struct ifnet *ifp,
+ uint16_t flags, const struct sockaddr *l3addr)
+{
+#pragma unused(flags)
+ struct rtentry *rt;
+
+ KASSERT(l3addr->sa_family == AF_INET6,
+ ("sin_family %d", l3addr->sa_family));
+ /* XXX rtalloc1 should take a const param */
+ rt = rtalloc1(__DECONST(struct sockaddr *, l3addr), 0, 0);
+ if (rt == NULL || (rt->rt_flags & RTF_GATEWAY) || rt->rt_ifp != ifp) {
+ struct ifaddr *ifa;
+ /*
+ * Create an ND6 cache for an IPv6 neighbor
+ * that is not covered by our own prefix.
+ */
+ /* XXX ifaof_ifpforaddr should take a const param */
+ ifa = ifaof_ifpforaddr(__DECONST(struct sockaddr *, l3addr), ifp);
+ if (ifa != NULL) {
+ IFA_REMREF(ifa);
+ if (rt != NULL) {
+ rtfree(rt);
+ }
+ return 0;
+ }
+ log(LOG_INFO, "IPv6 address: \"%s\" is not on the network\n",
+ ip6_sprintf(&((const struct sockaddr_in6 *)(const void *)l3addr)->sin6_addr));
+ if (rt != NULL) {
+ rtfree(rt);
+ }
+ return EINVAL;
+ }
+ rtfree(rt);
+ return 0;
+}
+
+static inline uint32_t
+in6_lltable_hash_dst(const struct in6_addr *dst, uint32_t hsize)
+{
+ return IN6_LLTBL_HASH(dst->s6_addr32[3], hsize);
+}
+
+static uint32_t
+in6_lltable_hash(const struct llentry *lle, uint32_t hsize)
+{
+ return in6_lltable_hash_dst(&lle->r_l3addr.addr6, hsize);
+}
+
+static void
+in6_lltable_fill_sa_entry(const struct llentry *lle, struct sockaddr *sa)
+{
+ struct sockaddr_in6 *sin6;
+
+ sin6 = (struct sockaddr_in6 *)(void *)sa;
+ bzero(sin6, sizeof(*sin6));
+ sin6->sin6_family = AF_INET6;
+ sin6->sin6_len = sizeof(*sin6);
+ sin6->sin6_addr = lle->r_l3addr.addr6;
+}
+
+static inline struct llentry *
+in6_lltable_find_dst(struct lltable *llt, const struct in6_addr *dst)
+{
+ struct llentry *lle;
+ struct llentries *lleh;
+ u_int hashidx;
+
+ hashidx = in6_lltable_hash_dst(dst, llt->llt_hsize);
+ lleh = &llt->lle_head[hashidx];
+ LIST_FOREACH(lle, lleh, lle_next) {
+ if (lle->la_flags & LLE_DELETED) {
+ continue;
+ }
+ if (IN6_ARE_ADDR_EQUAL(&lle->r_l3addr.addr6, dst)) {
+ break;
+ }
+ }
+
+ return lle;
+}
+
+static void
+in6_lltable_delete_entry(struct lltable *llt, struct llentry *lle)
+{
+#pragma unused(llt)
+ lle->la_flags |= LLE_DELETED;
+ EVENTHANDLER_INVOKE(NULL, lle_event, lle, LLENTRY_DELETED);
+#ifdef DIAGNOSTIC
+ log(LOG_INFO, "ifaddr cache = %p is deleted\n", lle);
+#endif
+ llentry_free(lle);
+}
+
+static struct llentry *
+in6_lltable_alloc(struct lltable *llt, uint16_t flags,
+ const struct sockaddr *l3addr)
+{
+ const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)(const void *)l3addr;
+ struct ifnet *ifp = llt->llt_ifp;
+ struct llentry *lle;
+
+ KASSERT(l3addr->sa_family == AF_INET6,
+ ("sin_family %d", l3addr->sa_family));
+
+ /*
+ * A route that covers the given address must have
+ * been installed 1st because we are doing a resolution,
+ * verify this.
+ */
+ if (!(flags & LLE_IFADDR) &&
+ in6_lltable_rtcheck(ifp, flags, l3addr) != 0) {
+ return NULL;
+ }
+
+ lle = in6_lltable_new(&sin6->sin6_addr, flags);
+ if (lle == NULL) {
+ log(LOG_INFO, "lla_lookup: new lle malloc failed\n");
+ return NULL;
+ }
+ lle->la_flags = (uint16_t)flags;
+ if ((flags & LLE_IFADDR) == LLE_IFADDR) {
+ lltable_set_entry_addr(ifp, lle, LLADDR(SDL(ifp->if_lladdr->ifa_addr)));
+ lle->la_flags |= LLE_STATIC;
+ }
+
+ if ((lle->la_flags & LLE_STATIC) != 0) {
+ lle->ln_state = ND6_LLINFO_REACHABLE;
+ }
+
+ return lle;
+}
+
+static struct llentry *
+in6_lltable_lookup(struct lltable *llt, uint16_t flags,
+ const struct sockaddr *l3addr)
+{
+ const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)(const void *)l3addr;
+ struct llentry *lle;
+
+ IF_AFDATA_LOCK_ASSERT(llt->llt_ifp, llt->llt_af);
+ KASSERT(l3addr->sa_family == AF_INET6,
+ ("sin_family %d", l3addr->sa_family));
+
+ lle = in6_lltable_find_dst(llt, &sin6->sin6_addr);
+
+ if (lle == NULL) {
+ return NULL;
+ }
+
+ KASSERT((flags & (LLE_UNLOCKED | LLE_EXCLUSIVE)) !=
+ (LLE_UNLOCKED | LLE_EXCLUSIVE), ("wrong lle request flags: 0x%X",
+ flags));
+
+ if (flags & LLE_UNLOCKED) {
+ return lle;
+ }
+
+ if (flags & LLE_EXCLUSIVE) {
+ LLE_WLOCK(lle);
+ } else {
+ LLE_RLOCK(lle);
+ }
+ return lle;
+}
+
+static int
+in6_lltable_dump_entry(struct lltable *llt, struct llentry *lle,
+ struct sysctl_req *wr)
+{
+ struct ifnet *ifp = llt->llt_ifp;
+ /* XXX stack use */
+ struct {
+ struct rt_msghdr rtm;
+ struct sockaddr_in6 sin6;
+ /*
+ * ndp.c assumes that sdl is word aligned
+ */
+#ifdef __LP64__
+ uint32_t pad;
+#endif
+ struct sockaddr_dl sdl;
+ } ndpc;
+ struct sockaddr_dl *sdl;
+ int error;
+
+ bzero(&ndpc, sizeof(ndpc));
+ /* skip deleted entries */
+ if ((lle->la_flags & LLE_DELETED) == LLE_DELETED) {
+ return 0;
+ }
+ /* Skip if jailed and not a valid IP of the prison. */
+ lltable_fill_sa_entry(lle,
+ (struct sockaddr *)&ndpc.sin6);
+ /*
+ * produce a msg made of:
+ * struct rt_msghdr;
+ * struct sockaddr_in6 (IPv6)
+ * struct sockaddr_dl;
+ */
+ ndpc.rtm.rtm_msglen = sizeof(ndpc);
+ ndpc.rtm.rtm_version = RTM_VERSION;
+ ndpc.rtm.rtm_type = RTM_GET;
+ ndpc.rtm.rtm_flags = RTF_UP;
+ ndpc.rtm.rtm_addrs = RTA_DST | RTA_GATEWAY;
+
+ /* publish */
+ if (lle->la_flags & LLE_PUB) {
+ ndpc.rtm.rtm_flags |= RTF_ANNOUNCE;
+ }
+ sdl = &ndpc.sdl;
+ sdl->sdl_family = AF_LINK;
+ sdl->sdl_len = sizeof(*sdl);
+ sdl->sdl_index = ifp->if_index;
+ sdl->sdl_type = ifp->if_type;
+ if ((lle->la_flags & LLE_VALID) == LLE_VALID) {
+ sdl->sdl_alen = ifp->if_addrlen;
+ bcopy(&lle->ll_addr, LLADDR(sdl), ifp->if_addrlen);
+ } else {
+ sdl->sdl_alen = 0;
+ bzero(LLADDR(sdl), ifp->if_addrlen);
+ }
+ if (lle->la_expire != 0) {
+ clock_sec_t secs;
+ clock_usec_t usecs;
+
+ clock_get_calendar_microtime(&secs, &usecs);
+ ndpc.rtm.rtm_rmx.rmx_expire = (int32_t)(lle->la_expire +
+ lle->lle_remtime / hz +
+ secs - net_uptime());
+ }
+ ndpc.rtm.rtm_flags |= (RTF_HOST | RTF_LLDATA);
+ if (lle->la_flags & LLE_STATIC) {
+ ndpc.rtm.rtm_flags |= RTF_STATIC;
+ }
+ if (lle->la_flags & LLE_IFADDR) {
+ ndpc.rtm.rtm_flags |= RTF_PINNED;
+ }
+ if (lle->ln_router != 0) {
+ ndpc.rtm.rtm_flags |= RTF_GATEWAY;
+ }
+ ndpc.rtm.rtm_rmx.rmx_pksent = lle->la_asked;
+ /* Store state in rmx_weight value */
+ ndpc.rtm.rtm_rmx.rmx_state = lle->ln_state;
+ ndpc.rtm.rtm_index = ifp->if_index;
+ error = SYSCTL_OUT(wr, &ndpc, sizeof(ndpc));
+
+ return error;
+}
+
+struct lltable *
+in6_lltattach(struct ifnet *ifp)
+{
+ struct lltable *llt;
+
+ llt = lltable_allocate_htbl(IN6_LLTBL_DEFAULT_HSIZE);
+ llt->llt_af = AF_INET6;
+ llt->llt_ifp = ifp;
+
+ llt->llt_lookup = in6_lltable_lookup;
+ llt->llt_alloc_entry = in6_lltable_alloc;
+ llt->llt_delete_entry = in6_lltable_delete_entry;
+ llt->llt_dump_entry = in6_lltable_dump_entry;
+ llt->llt_hash = in6_lltable_hash;
+ llt->llt_fill_sa_entry = in6_lltable_fill_sa_entry;
+ llt->llt_free_entry = in6_lltable_free_entry;
+ llt->llt_match_prefix = in6_lltable_match_prefix;
+ lltable_link(llt);
+
+ return llt;
+}
+
+void
+in6_ip6_to_sockaddr(const struct in6_addr *ip6, u_int16_t port,
+ struct sockaddr_in6 *sin6, u_int32_t maxlen)
+{
+ if (maxlen < sizeof(struct sockaddr_in6)) {
+ return;
+ }
+
+ *sin6 = (struct sockaddr_in6) {
+ .sin6_family = AF_INET6,
+ .sin6_len = sizeof(*sin6),
+ .sin6_port = port,
+ .sin6_addr = *ip6,
+ };
+
+ if (IN6_IS_SCOPE_EMBED(&sin6->sin6_addr)) {
+ sin6->sin6_scope_id = ntohs(sin6->sin6_addr.s6_addr16[1]);
+ sin6->sin6_addr.s6_addr16[1] = 0;
+ }
+}
+
+/* IPv6 events */
+struct in6_event {
+ in6_evhdlr_code_t in6_event_code;
+ struct ifnet *in6_ifp;
+ struct in6_addr in6_address;
+ uint32_t val;
+};
+
+struct in6_event2kev in6_event2kev_array[IN6_EVENT_MAX] = {
+ {
+ .in6_event_code = IN6_ADDR_MARKED_DUPLICATED,
+ .in6_event_kev_subclass = KEV_ND6_SUBCLASS,
+ .in6_event_kev_code = KEV_ND6_DAD_FAILURE,
+ .in6_event_str = "IN6_ADDR_MARKED_DUPLICATED",
+ },
+ {
+ .in6_event_code = IN6_ADDR_MARKED_DETACHED,
+ .in6_event_kev_subclass = KEV_ND6_SUBCLASS,
+ .in6_event_kev_code = KEV_ND6_ADDR_DETACHED,
+ .in6_event_str = "IN6_ADDR_MARKED_DETACHED",
+ },
+ {
+ .in6_event_code = IN6_ADDR_MARKED_DEPRECATED,
+ .in6_event_kev_subclass = KEV_ND6_SUBCLASS,
+ .in6_event_kev_code = KEV_ND6_ADDR_DEPRECATED,
+ .in6_event_str = "IN6_ADDR_MARKED_DEPRECATED",
+ },
+ {
+ .in6_event_code = IN6_NDP_RTR_EXPIRY,
+ .in6_event_kev_subclass = KEV_ND6_SUBCLASS,
+ .in6_event_kev_code = KEV_ND6_RTR_EXPIRED,
+ .in6_event_str = "IN6_NDP_RTR_EXPIRY",
+ },
+ {
+ .in6_event_code = IN6_NDP_PFX_EXPIRY,
+ .in6_event_kev_subclass = KEV_ND6_SUBCLASS,
+ .in6_event_kev_code = KEV_ND6_PFX_EXPIRED,
+ .in6_event_str = "IN6_NDP_PFX_EXPIRY",
+ },
+ {
+ .in6_event_code = IN6_NDP_ADDR_EXPIRY,
+ .in6_event_kev_subclass = KEV_ND6_SUBCLASS,
+ .in6_event_kev_code = KEV_ND6_ADDR_EXPIRED,
+ .in6_event_str = "IN6_NDP_ADDR_EXPIRY",
+ },
+};
+
+void
+in6_eventhdlr_callback(struct eventhandler_entry_arg arg0 __unused,
+ in6_evhdlr_code_t in6_ev_code, struct ifnet *ifp,
+ struct in6_addr *p_addr6, uint32_t val)
+{
+ struct kev_msg ev_msg;
+ struct kev_nd6_event nd6_event;
+
+ bzero(&ev_msg, sizeof(ev_msg));
+ bzero(&nd6_event, sizeof(nd6_event));
+
+ nd6log0(info, "%s Event %s received for %s\n",
+ __func__, in6_event2kev_array[in6_ev_code].in6_event_str,
+ ip6_sprintf(p_addr6));
+
+ ev_msg.vendor_code = KEV_VENDOR_APPLE;
+ ev_msg.kev_class = KEV_NETWORK_CLASS;
+ ev_msg.kev_subclass =
+ in6_event2kev_array[in6_ev_code].in6_event_kev_subclass;
+ ev_msg.event_code =
+ in6_event2kev_array[in6_ev_code].in6_event_kev_code;
+
+ nd6_event.link_data.if_family = ifp->if_family;
+ nd6_event.link_data.if_unit = ifp->if_unit;
+ strlcpy(nd6_event.link_data.if_name, ifp->if_name,
+ sizeof(nd6_event.link_data.if_name));
+
+ VERIFY(p_addr6 != NULL);
+ bcopy(p_addr6, &nd6_event.in6_address,
+ sizeof(nd6_event.in6_address));
+ nd6_event.val = val;
+
+ ev_msg.dv[0].data_ptr = &nd6_event;
+ ev_msg.dv[0].data_length = sizeof(nd6_event);
+
+ kev_post_msg(&ev_msg);
+}
+
+static void
+in6_event_callback(void *arg)
+{
+ struct in6_event *p_in6_ev = (struct in6_event *)arg;
+
+ EVENTHANDLER_INVOKE(&in6_evhdlr_ctxt, in6_event,
+ p_in6_ev->in6_event_code, p_in6_ev->in6_ifp,
+ &p_in6_ev->in6_address, p_in6_ev->val);
+}
+
+struct in6_event_nwk_wq_entry {
+ struct nwk_wq_entry nwk_wqe;
+ struct in6_event in6_ev_arg;
+};
+
+void
+in6_event_enqueue_nwk_wq_entry(in6_evhdlr_code_t in6_event_code,
+ struct ifnet *ifp, struct in6_addr *p_addr6,
+ uint32_t val)
+{
+ struct in6_event_nwk_wq_entry *p_in6_ev = NULL;
+
+ MALLOC(p_in6_ev, struct in6_event_nwk_wq_entry *,
+ sizeof(struct in6_event_nwk_wq_entry),
+ M_NWKWQ, M_WAITOK | M_ZERO);
+
+ p_in6_ev->nwk_wqe.func = in6_event_callback;
+ p_in6_ev->nwk_wqe.is_arg_managed = TRUE;
+ p_in6_ev->nwk_wqe.arg = &p_in6_ev->in6_ev_arg;
+
+ p_in6_ev->in6_ev_arg.in6_event_code = in6_event_code;
+ p_in6_ev->in6_ev_arg.in6_ifp = ifp;
+ if (p_addr6 != NULL) {
+ bcopy(p_addr6, &p_in6_ev->in6_ev_arg.in6_address,
+ sizeof(p_in6_ev->in6_ev_arg.in6_address));
+ }
+ p_in6_ev->in6_ev_arg.val = val;
+
+ nwk_wq_enqueue((struct nwk_wq_entry*)p_in6_ev);
+}
+
+/*
+ * Caller must hold in6_ifaddr_rwlock as writer.
+ */
+static void
+in6_iahash_remove(struct in6_ifaddr *ia)
+{
+ LCK_RW_ASSERT(&in6_ifaddr_rwlock, LCK_RW_ASSERT_EXCLUSIVE);
+ IFA_LOCK_ASSERT_HELD(&ia->ia_ifa);
+
+ if (!IA6_IS_HASHED(ia)) {
+ panic("%s: attempt to remove wrong ia %p from ipv6 hash table\n", __func__, ia);
+ /* NOTREACHED */
+ }
+ TAILQ_REMOVE(IN6ADDR_HASH(&ia->ia_addr.sin6_addr), ia, ia6_hash);
+ IA6_HASH_INIT(ia);
+ if (IFA_REMREF_LOCKED(&ia->ia_ifa) == NULL) {
+ panic("%s: unexpected (missing) refcnt ifa=%p", __func__,
+ &ia->ia_ifa);
+ /* NOTREACHED */
+ }
+}
+
+/*
+ * Caller must hold in6_ifaddr_rwlock as writer.
+ */
+static void
+in6_iahash_insert(struct in6_ifaddr *ia)
+{
+ LCK_RW_ASSERT(&in6_ifaddr_rwlock, LCK_RW_ASSERT_EXCLUSIVE);
+ IFA_LOCK_ASSERT_HELD(&ia->ia_ifa);
+
+ if (ia->ia_addr.sin6_family != AF_INET6) {
+ panic("%s: attempt to insert wrong ia %p into hash table\n", __func__, ia);
+ /* NOTREACHED */
+ } else if (IA6_IS_HASHED(ia)) {
+ panic("%s: attempt to double-insert ia %p into hash table\n", __func__, ia);
+ /* NOTREACHED */
+ }
+ TAILQ_INSERT_HEAD(IN6ADDR_HASH(&ia->ia_addr.sin6_addr),
+ ia, ia6_hash);
+ IFA_ADDREF_LOCKED(&ia->ia_ifa);
+}
+
+/*
+ * Some point to point interfaces that are tunnels borrow the address from
+ * an underlying interface (e.g. VPN server). In order for source address
+ * selection logic to find the underlying interface first, we add the address
+ * of borrowing point to point interfaces at the end of the list.
+ * (see rdar://6733789)
+ *
+ * Caller must hold in6_ifaddr_rwlock as writer.
+ */
+static void
+in6_iahash_insert_ptp(struct in6_ifaddr *ia)
+{
+ struct in6_ifaddr *tmp_ifa;
+ struct ifnet *tmp_ifp;
+
+ LCK_RW_ASSERT(&in6_ifaddr_rwlock, LCK_RW_ASSERT_EXCLUSIVE);
+ IFA_LOCK_ASSERT_HELD(&ia->ia_ifa);
+
+ if (ia->ia_addr.sin6_family != AF_INET6) {
+ panic("%s: attempt to insert wrong ia %p into hash table\n", __func__, ia);
+ /* NOTREACHED */
+ } else if (IA6_IS_HASHED(ia)) {
+ panic("%s: attempt to double-insert ia %p into hash table\n", __func__, ia);
+ /* NOTREACHED */
+ }
+ IFA_UNLOCK(&ia->ia_ifa);
+ TAILQ_FOREACH(tmp_ifa, IN6ADDR_HASH(&ia->ia_addr.sin6_addr), ia6_hash) {
+ IFA_LOCK(&tmp_ifa->ia_ifa);
+ /* ia->ia_addr won't change, so check without lock */
+ if (IN6_ARE_ADDR_EQUAL(&tmp_ifa->ia_addr.sin6_addr, &ia->ia_addr.sin6_addr)) {
+ IFA_UNLOCK(&tmp_ifa->ia_ifa);
+ break;
+ }
+ IFA_UNLOCK(&tmp_ifa->ia_ifa);
+ }
+ tmp_ifp = (tmp_ifa == NULL) ? NULL : tmp_ifa->ia_ifp;
+
+ IFA_LOCK(&ia->ia_ifa);
+ if (tmp_ifp == NULL) {
+ TAILQ_INSERT_HEAD(IN6ADDR_HASH(&ia->ia_addr.sin6_addr),
+ ia, ia6_hash);
+ } else {
+ TAILQ_INSERT_TAIL(IN6ADDR_HASH(&ia->ia_addr.sin6_addr),
+ ia, ia6_hash);
+ }
+ IFA_ADDREF_LOCKED(&ia->ia_ifa);
+}
projects / apple / xnu.git / blobdiff