zebra: netlink backend support setting a P-t-P address

add a few bits to properly set a pointopoint address via netlink. the
structures have all the neccessary support, just need to send the proper
message bits to the kernel.

1 files changed, 13 insertions, 4 deletions

diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c
index 7652f80a..dfe88002 100644
--- a/zebra/rt_netlink.c
+++ b/zebra/rt_netlink.c
@@ -1778,20 +1778,29 @@ netlink_address (int cmd, int family, struct interface *ifp,
   req.ifa.ifa_family = family;
 
   req.ifa.ifa_index = ifp->ifindex;
-  req.ifa.ifa_prefixlen = p->prefixlen;
 
   addattr_l (&req.n, sizeof req, IFA_LOCAL, &p->u.prefix, bytelen);
 
-  if (family == AF_INET && cmd == RTM_NEWADDR)
+  if (family == AF_INET)
     {
-      if (!CONNECTED_PEER(ifc) && ifc->destination)
+      if (CONNECTED_PEER(ifc))
         {
           p = ifc->destination;
-          addattr_l (&req.n, sizeof req, IFA_BROADCAST, &p->u.prefix,
+          addattr_l (&req.n, sizeof req, IFA_ADDRESS, &p->u.prefix,
                      bytelen);
         }
+      else
+        if (cmd == RTM_NEWADDR && ifc->destination)
+          {
+            p = ifc->destination;
+            addattr_l (&req.n, sizeof req, IFA_BROADCAST, &p->u.prefix,
+                       bytelen);
+          }
     }
 
+  /* p is now either ifc->address or ifc->destination */
+  req.ifa.ifa_prefixlen = p->prefixlen;
+
   if (CHECK_FLAG (ifc->flags, ZEBRA_IFA_SECONDARY))
     SET_FLAG (req.ifa.ifa_flags, IFA_F_SECONDARY);