From 87a9abeac976180ade1c7619545e610d743994b5 Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Fri, 21 May 2010 15:17:49 +0200
Subject: [PATCH] Fixes interface scan on Linux 2.4.x in IPv6 mode.

---
 sysdep/linux/netlink/netlink.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sysdep/linux/netlink/netlink.c b/sysdep/linux/netlink/netlink.c
index 72f06cc2..365d4a95 100644
--- a/sysdep/linux/netlink/netlink.c
+++ b/sysdep/linux/netlink/netlink.c
@@ -98,7 +98,9 @@ nl_request_dump(int cmd)
   req.nh.nlmsg_type = cmd;
   req.nh.nlmsg_len = sizeof(req);
   req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
-  req.g.rtgen_family = BIRD_PF;
+  /* Is it important which PF_* is used for link-level interface scan?
+     It seems that some information is available only when PF_INET is used. */
+  req.g.rtgen_family = (cmd == RTM_GETLINK) ? PF_INET : BIRD_PF;
   nl_send(&nl_scan, &req.nh);
 }