From ab836aab45bb6bea37da3584bb051fc56f1ca827 Mon Sep 17 00:00:00 2001
From: paul <paul>
Date: Fri, 13 Dec 2002 21:19:02 +0000
Subject: Michal Ludvig <michal@logix.cz> [zebra 16525] PATCH: Bugfixes for
 KAME systems

---
 zebra/if_ioctl.c | 35 ++++++++++++++++++++++++-----------
 1 file changed, 24 insertions(+), 11 deletions(-)

(limited to 'zebra')

diff --git a/zebra/if_ioctl.c b/zebra/if_ioctl.c
index 46f53011..c9797996 100644
--- a/zebra/if_ioctl.c
+++ b/zebra/if_ioctl.c
@@ -130,14 +130,11 @@ interface_list_ioctl ()
 int
 if_get_index (struct interface *ifp)
 {
-  static int if_fake_index = 1;
-
-#ifdef HAVE_BROKEN_ALIASES
-  /* Linux 2.2.X does not provide individual interface index for aliases. */
-  ifp->ifindex = if_fake_index++;
-  return ifp->ifindex;
-#else
-#ifdef SIOCGIFINDEX
+#if defined(HAVE_IF_NAMETOINDEX)
+  /* Modern systems should have if_nametoindex(3). */
+  ifp->ifindex = if_nametoindex(ifp->name);
+#elif defined(SIOCGIFINDEX) && !defined(HAVE_BROKEN_ALIASES)
+  /* Fall-back for older linuxes. */
   int ret;
   struct ifreq ifreq;
 
@@ -157,13 +154,20 @@ if_get_index (struct interface *ifp)
 #else
   ifp->ifindex = ifreq.ifr_index;
 #endif
-  return ifp->ifindex;
 
 #else
+/* Linux 2.2.X does not provide individual interface index 
+   for aliases and we know it. For others issue a warning. */
+#if !defined(HAVE_BROKEN_ALIASES)
+#warning "Using if_fake_index. You may want to add appropriate"
+#warning "mapping from ifname to ifindex for your system..."
+#endif
+  /* This branch probably won't provide usable results, but anyway... */
+  static int if_fake_index = 1;
   ifp->ifindex = if_fake_index++;
+#endif
+
   return ifp->ifindex;
-#endif /* SIOCGIFINDEX */
-#endif /* HAVE_BROKEN_ALIASES */
 }
 
 #ifdef SIOCGIFHWADDR
@@ -287,6 +291,15 @@ if_getaddrs ()
 		}
 	    }
 
+#if defined(KAME)
+	  if (IN6_IS_ADDR_LINKLOCAL(&addr->sin6_addr)) 
+	    {
+	      addr->sin6_scope_id =
+			ntohs(*(u_int16_t *)&addr->sin6_addr.s6_addr[2]);
+	      addr->sin6_addr.s6_addr[2] = addr->sin6_addr.s6_addr[3] = 0;
+	    }	
+#endif          
+
 	  connected_add_ipv6 (ifp, &addr->sin6_addr, prefixlen, dest_pnt);
 	}
 #endif /* HAVE_IPV6 */
-- 
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