/* Interface's address information get. */
int
ifam_read (struct ifa_msghdr *ifam)
{
struct interface *ifp;
union sockunion addr, mask, gate;
/* Check does this interface exist or not. */
ifp = if_lookup_by_index (ifam->ifam_index);
if (ifp == NULL)
{
zlog_warn ("no interface for index %d", ifam->ifam_index);
return -1;
}
/* Allocate and read address information. */
ifam_read_mesg (ifam, &addr, &mask, &gate);
/* Check interface flag for implicit up of the interface. */
if_refresh (ifp);
/* Add connected address. */
switch (sockunion_family (&addr))
{
case AF_INET:
if (ifam->ifam_type == RTM_NEWADDR)
connected_add_ipv4 (ifp, 0, &addr.sin.sin_addr,
ip_masklen (mask.sin.sin_addr),
&gate.sin.sin_addr, NULL);
else
connected_delete_ipv4 (ifp, 0, &addr.sin.sin_addr,
ip_masklen (mask.sin.sin_addr),
&gate.sin.sin_addr, NULL);
break;
#ifdef HAVE_IPV6
case AF_INET6:
/* Unset interface index from link-local address when IPv6 stack
is KAME. */
if (IN6_IS_ADDR_LINKLOCAL (&addr.sin6.sin6_addr))
SET_IN6_LINKLOCAL_IFINDEX (addr.sin6.sin6_addr, 0);
if (ifam->ifam_type == RTM_NEWADDR)
connected_add_ipv6 (ifp,
&addr.sin6.sin6_addr,
ip6_masklen (mask.sin6.sin6_addr),
&gate.sin6.sin6_addr);
else
connected_delete_ipv6 (ifp,
&addr.sin6.sin6_addr,
ip6_masklen (mask.sin6.sin6_addr),
&gate.sin6.sin6_addr);
break;
#endif /* HAVE_IPV6 */
default:
/* Unsupported family silently ignore... */
break;
}
return 0;
}
/* Interface's address information get. */
int
ifam_read (struct ifa_msghdr *ifam)
{
struct interface *ifp = NULL;
union sockunion addr, mask, brd;
char ifname[INTERFACE_NAMSIZ];
short ifnlen = 0;
char isalias = 0;
int flags = 0;
ifname[0] = ifname[INTERFACE_NAMSIZ - 1] = '\0';
/* Allocate and read address information. */
ifam_read_mesg (ifam, &addr, &mask, &brd, ifname, &ifnlen);
if ((ifp = if_lookup_by_index(ifam->ifam_index)) == NULL)
{
zlog_warn ("%s: no interface for ifname %s, index %d",
__func__, ifname, ifam->ifam_index);
return -1;
}
if (ifnlen && strncmp (ifp->name, ifname, INTERFACE_NAMSIZ))
isalias = 1;
/* N.B. The info in ifa_msghdr does not tell us whether the RTA_BRD
field contains a broadcast address or a peer address, so we are forced to
rely upon the interface type. */
if (if_is_pointopoint(ifp))
SET_FLAG(flags, ZEBRA_IFA_PEER);
#if 0
/* it might seem cute to grab the interface metric here, however
* we're processing an address update message, and so some systems
* (e.g. FBSD) dont bother to fill in ifam_metric. Disabled, but left
* in deliberately, as comment.
*/
ifp->metric = ifam->ifam_metric;
#endif
/* Add connected address. */
switch (sockunion_family (&addr))
{
case AF_INET:
if (ifam->ifam_type == RTM_NEWADDR)
connected_add_ipv4 (ifp, flags, &addr.sin.sin_addr,
ip_masklen (mask.sin.sin_addr),
&brd.sin.sin_addr,
(isalias ? ifname : NULL));
else
connected_delete_ipv4 (ifp, flags, &addr.sin.sin_addr,
ip_masklen (mask.sin.sin_addr),
&brd.sin.sin_addr);
break;
#ifdef HAVE_IPV6
case AF_INET6:
/* Unset interface index from link-local address when IPv6 stack
is KAME. */
if (IN6_IS_ADDR_LINKLOCAL (&addr.sin6.sin6_addr))
SET_IN6_LINKLOCAL_IFINDEX (addr.sin6.sin6_addr, 0);
if (ifam->ifam_type == RTM_NEWADDR)
connected_add_ipv6 (ifp, flags, &addr.sin6.sin6_addr,
ip6_masklen (mask.sin6.sin6_addr),
&brd.sin6.sin6_addr,
(isalias ? ifname : NULL));
else
connected_delete_ipv6 (ifp,
&addr.sin6.sin6_addr,
ip6_masklen (mask.sin6.sin6_addr),
&brd.sin6.sin6_addr);
break;
#endif /* HAVE_IPV6 */
default:
/* Unsupported family silently ignore... */
break;
}
/* Check interface flag for implicit up of the interface. */
if_refresh (ifp);
#ifdef SUNOS_5
/* In addition to lacking IFANNOUNCE, on SUNOS IFF_UP is strange.
* See comments for SUNOS_5 in interface.c::if_flags_mangle.
*
* Here we take care of case where the real IFF_UP was previously
* unset (as kept in struct zebra_if.primary_state) and the mangled
* IFF_UP (ie IFF_UP set || listcount(connected) has now transitioned
* to unset due to the lost non-primary address having DELADDR'd.
*
* we must delete the interface, because in between here and next
* event for this interface-name the administrator could unplumb
* and replumb the interface.
*/
if (!if_is_up (ifp))
if_delete_update (ifp);
#endif /* SUNOS_5 */
return 0;
}
