-/* $KAME: in6_ifattach.c,v 1.41 2000/03/16 07:05:34 jinmei Exp $ */
+/* $FreeBSD: src/sys/netinet6/in6_ifattach.c,v 1.8 2002/04/19 04:46:22 suz Exp $ */
+/* $KAME: in6_ifattach.c,v 1.118 2001/05/24 07:44:00 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
int ip6_auto_linklocal = 1; /* enable by default */
#endif
-#ifndef __APPLE__
-struct callout in6_tmpaddrtimer_ch;
-#endif
extern struct inpcbinfo udbinfo;
extern struct inpcbinfo ripcbinfo;
static int generate_tmp_ifid __P((u_int8_t *, const u_int8_t *, u_int8_t *));
static int get_hw_ifid __P((struct ifnet *, struct in6_addr *));
static int get_ifid __P((struct ifnet *, struct ifnet *, struct in6_addr *));
-static int in6_ifattach_linklocal __P((struct ifnet *, struct ifnet *));
+static int in6_ifattach_linklocal __P((struct ifnet *, struct ifnet *, struct in6_aliasreq *));
static int in6_ifattach_loopback __P((struct ifnet *));
#define EUI64_GBIT 0x01
static int
get_rand_ifid(ifp, in6)
struct ifnet *ifp;
- struct in6_addr *in6; /*upper 64bits are preserved */
+ struct in6_addr *in6; /* upper 64bits are preserved */
{
MD5_CTX ctxt;
u_int8_t digest[16];
val32 = random() ^ tv.tv_usec;
bcopy(&val32, seed + sizeof(val32) * i, sizeof(val32));
}
- } else
+ } else {
bcopy(seed0, seed, 8);
+ }
/* copy the right-most 64-bits of the given address */
/* XXX assumption on the size of IFID */
static int
get_hw_ifid(ifp, in6)
struct ifnet *ifp;
- struct in6_addr *in6; /*upper 64bits are preserved */
+ struct in6_addr *in6; /* upper 64bits are preserved */
{
struct ifaddr *ifa;
struct sockaddr_dl *sdl;
static int
get_ifid(ifp0, altifp, in6)
struct ifnet *ifp0;
- struct ifnet *altifp; /*secondary EUI64 source*/
+ struct ifnet *altifp; /* secondary EUI64 source */
struct in6_addr *in6;
{
struct ifnet *ifp;
}
static int
-in6_ifattach_linklocal(ifp, altifp)
+in6_ifattach_linklocal(ifp, altifp, ifra_passed)
struct ifnet *ifp;
struct ifnet *altifp; /* secondary EUI64 source */
+ struct in6_aliasreq *ifra_passed;
{
struct in6_ifaddr *ia;
struct in6_aliasreq ifra;
struct nd_prefix pr0;
- int i, error;
+ int i, dl_tag, error;
/*
* configure link-local address.
*/
bzero(&ifra, sizeof(ifra));
+ dlil_plumb_protocol(PF_INET6, ifp, &dl_tag);
+
/*
* in6_update_ifa() does not use ifra_name, but we accurately set it
* for safety.
*/
strncpy(ifra.ifra_name, if_name(ifp), sizeof(ifra.ifra_name));
- ifra.ifra_addr.sin6_family = AF_INET6;
- ifra.ifra_addr.sin6_len = sizeof(struct sockaddr_in6);
- ifra.ifra_addr.sin6_addr.s6_addr16[0] = htons(0xfe80);
+ if (ifp->if_type == IFT_PPP && ifra_passed != NULL) /* PPP provided both addresses for us */
+ bcopy(&ifra_passed->ifra_addr, &(ifra.ifra_addr), sizeof(struct sockaddr_in6));
+ else {
+ ifra.ifra_addr.sin6_family = AF_INET6;
+ ifra.ifra_addr.sin6_len = sizeof(struct sockaddr_in6);
+ ifra.ifra_addr.sin6_addr.s6_addr16[0] = htons(0xfe80);
#if SCOPEDROUTING
- ifra.ifra_addr.sin6_addr.s6_addr16[1] = 0
+ ifra.ifra_addr.sin6_addr.s6_addr16[1] = 0
#else
- ifra.ifra_addr.sin6_addr.s6_addr16[1] = htons(ifp->if_index); /* XXX */
+ ifra.ifra_addr.sin6_addr.s6_addr16[1] = htons(ifp->if_index); /* XXX */
#endif
- ifra.ifra_addr.sin6_addr.s6_addr32[1] = 0;
- if ((ifp->if_flags & IFF_LOOPBACK) != 0) {
- ifra.ifra_addr.sin6_addr.s6_addr32[2] = 0;
- ifra.ifra_addr.sin6_addr.s6_addr32[3] = htonl(1);
- } else {
- if (get_ifid(ifp, altifp, &ifra.ifra_addr.sin6_addr) != 0) {
- nd6log((LOG_ERR,
- "%s: no ifid available\n", if_name(ifp)));
- return -1;
+ ifra.ifra_addr.sin6_addr.s6_addr32[1] = 0;
+ if ((ifp->if_flags & IFF_LOOPBACK) != 0) {
+ ifra.ifra_addr.sin6_addr.s6_addr32[2] = 0;
+ ifra.ifra_addr.sin6_addr.s6_addr32[3] = htonl(1);
+ } else {
+ if (get_ifid(ifp, altifp, &ifra.ifra_addr.sin6_addr) != 0) {
+ nd6log((LOG_ERR,
+ " %s: no ifid available\n", if_name(ifp)));
+ return -1;
+ }
}
- }
#if SCOPEDROUTING
- ifra.ifra_addr.sin6_scope_id =
- in6_addr2scopeid(ifp, &ifra.ifra_addr.sin6_addr);
+ ifra.ifra_addr.sin6_scope_id =
+ in6_addr2scopeid(ifp, &ifra.ifra_addr.sin6_addr);
#endif
-
+ }
ifra.ifra_prefixmask.sin6_len = sizeof(struct sockaddr_in6);
ifra.ifra_prefixmask.sin6_family = AF_INET6;
ifra.ifra_prefixmask.sin6_addr = in6mask64;
/*
* Do not let in6_update_ifa() do DAD, since we need a random delay
- * before sending an NS at the first time the inteface becomes up.
+ * before sending an NS at the first time the interface becomes up.
* Instead, in6_if_up() will start DAD with a proper random delay.
*/
ifra.ifra_flags |= IN6_IFF_NODAD;
/*
* Now call in6_update_ifa() to do a bunch of procedures to configure
* a link-local address. We can set NULL to the 3rd argument, because
- * we know there's no other link-local address on the interface.
+ * we know there's no other link-local address on the interface
+ * and therefore we are adding one (instead of updating one).
*/
if ((error = in6_update_ifa(ifp, &ifra, NULL)) != 0) {
/*
ifra.ifra_lifetime.ia6t_vltime = ND6_INFINITE_LIFETIME;
ifra.ifra_lifetime.ia6t_pltime = ND6_INFINITE_LIFETIME;
- /* we don't need to perfrom DAD on loopback interfaces. */
+ /* we don't need to perform DAD on loopback interfaces. */
ifra.ifra_flags |= IN6_IFF_NODAD;
/* skip registration to the prefix list. XXX should be temporary. */
ifra.ifra_flags |= IN6_IFF_NOPFX;
/*
- * We can set NULL to the 3rd arg. See comments in
- * in6_ifattach_linklocal().
+ * We are sure that this is a newly assigned address, so we can set
+ * NULL to the 3rd arg.
*/
if ((error = in6_update_ifa(ifp, &ifra, NULL)) != 0) {
log(LOG_ERR, "in6_ifattach_loopback: failed to configure "
while (p && *p && *p != '.' && p - name < namelen)
p++;
if (p - name > sizeof(n) - 1)
- return -1; /*label too long*/
+ return -1; /* label too long */
l = p - name;
strncpy(n, name, l);
n[(int)l] = '\0';
* XXX multiple link-local address case
*/
void
-in6_ifattach(ifp, altifp)
+in6_ifattach(ifp, altifp, ifra)
struct ifnet *ifp;
struct ifnet *altifp; /* secondary EUI64 source */
+ struct in6_aliasreq *ifra;
{
static size_t if_indexlim = 8;
struct in6_ifaddr *ia;
struct in6_addr in6;
- u_long dl_tag;
- switch (ifp->if_type) {
-#if IFT_BRIDGE /*OpenBSD 2.8*/
- /* some of the interfaces are inherently not IPv6 capable */
- case IFT_BRIDGE:
- return;
-#endif
-#ifdef __APPLE__
- case IFT_ETHER:
- dl_tag = ether_attach_inet6(ifp);
- break;
-
- case IFT_LOOP:
- dl_tag = lo_attach_inet6(ifp);
-#if NGIF > 0
- case IFT_GIF:
- dl_tag = gif_attach_proto_family(ifp, PF_INET6);
- break;
-#endif
-#if NSTF > 0
- case IFT_STF:
- dl_tag = stf_attach_inet6(ifp);
- break;
-#endif
-#endif
- }
/*
* We have some arrays that should be indexed by if_index.
icmp6_ifstatmax = if_indexlim;
}
+ /* initialize NDP variables */
+ nd6_ifattach(ifp);
+
/* initialize scope identifiers */
scope6_ifattach(ifp);
#if IFT_STF
case IFT_STF:
/*
- * 6to4 interface is a very speical kind of beast.
- * no multicast, no linklocal (based on 03 draft).
+ * 6to4 interface is a very special kind of beast.
+ * no multicast, no linklocal. RFC2529 specifies how to make
+ * linklocals for 6to4 interface, but there's no use and
+ * it is rather harmful to have one.
*/
goto statinit;
#endif
return;
}
- /* initialize NDP variables */
- nd6_ifattach(ifp);
-
/*
* assign loopback address for loopback interface.
* XXX multiple loopback interface case.
if (ip6_auto_linklocal) {
ia = in6ifa_ifpforlinklocal(ifp, 0);
if (ia == NULL) {
- if (in6_ifattach_linklocal(ifp, altifp) == 0) {
+ if (in6_ifattach_linklocal(ifp, altifp, ifra) == 0) {
/* linklocal address assigned */
} else {
+ log(LOG_INFO, "in6_ifattach: "
+ "%s failed to attach a linklocal address.\n",
+ if_name(ifp));
/* failed to assign linklocal address. bark? */
}
}
_MALLOC(sizeof(struct icmp6_ifstat), M_IFADDR, M_WAITOK);
bzero(icmp6_ifstat[ifp->if_index], sizeof(struct icmp6_ifstat));
}
-
}
/*
IFAFREE(&oia->ia_ifa);
}
+#ifndef __APPLE__
+
+/* This is a cause for reentrency, as those multicast addresses are
+ * freed both from the interface detaching and triggered by the closing of the socket
+ * Let the socket do the cleanup and not force it from the interface level
+ */
/* leave from all multicast groups joined */
in6_pcbpurgeif0(LIST_FIRST(udbinfo.listhead), ifp);
in6_pcbpurgeif0(LIST_FIRST(ripcbinfo.listhead), ifp);
in6_delmulti(in6m);
in6m = NULL;
}
+#endif /* __APPLE__ */
/*
* remove neighbor management table. we call it twice just to make
#endif
}
+extern size_t nd_ifinfo_indexlim;
+extern int ip6_use_tempaddr;
void
in6_tmpaddrtimer(ignored_arg)
void *ignored_arg;
(ip6_temp_preferred_lifetime - ip6_desync_factor -
ip6_temp_regen_advance) * hz);
- bzero(nullbuf, sizeof(nullbuf));
- for (i = 1; i < if_index + 1; i++) {
- ndi = &nd_ifinfo[i];
- if (bcmp(ndi->randomid, nullbuf, sizeof(nullbuf)) != 0) {
- /*
- * We've been generating a random ID on this interface.
- * Create a new one.
- */
- (void)generate_tmp_ifid(ndi->randomseed0,
- ndi->randomseed1,
- ndi->randomid);
+ if (ip6_use_tempaddr) {
+
+ bzero(nullbuf, sizeof(nullbuf));
+ for (i = 1; i < nd_ifinfo_indexlim + 1; i++) {
+ ndi = &nd_ifinfo[i];
+ if (ndi->flags != ND6_IFF_PERFORMNUD)
+ continue;
+ if (bcmp(ndi->randomid, nullbuf, sizeof(nullbuf)) != 0) {
+ /*
+ * We've been generating a random ID on this interface.
+ * Create a new one.
+ */
+ (void)generate_tmp_ifid(ndi->randomseed0,
+ ndi->randomseed1,
+ ndi->randomid);
+ }
}
}
-
splx(s);
}
projects / apple / xnu.git / blobdiff