From 51d4ef832c1e58150325630e25c442866e5a6cf5 Mon Sep 17 00:00:00 2001
From: Josh Bailey <joshb@google.com>
Date: Wed, 21 Mar 2012 17:13:39 -0700
Subject: zebra: include hardware addr in if up/down messages

Change interface up/down notification messages to also include the
hardware address of the interface. The format of these messages is now
identical to the interface add message -- move the serialization code
to common functions.

  * lib/zclient.c: Modify zebra_interface_if_set_value() to also parse
    the hardware address. Invoke it from zebra_interface_add_read()
    and and zebra_interface_state_read().

  * zebra/zserv.c: Add zserv_encode_interface(). Invoke it from
    zserv_interface_add(), zserv_interface_delete() and
    zserv_interface_update().
---
 zebra/zserv.c | 76 ++++++++++++++++++++++-------------------------------------
 1 file changed, 28 insertions(+), 48 deletions(-)

(limited to 'zebra/zserv.c')

diff --git a/zebra/zserv.c b/zebra/zserv.c
index 2330135a..23a5c4e8 100644
--- a/zebra/zserv.c
+++ b/zebra/zserv.c
@@ -131,6 +131,30 @@ zserv_create_header (struct stream *s, uint16_t cmd)
   stream_putw (s, cmd);
 }
 
+static void
+zserv_encode_interface (struct stream *s, struct interface *ifp)
+{
+  /* Interface information. */
+  stream_put (s, ifp->name, INTERFACE_NAMSIZ);
+  stream_putl (s, ifp->ifindex);
+  stream_putc (s, ifp->status);
+  stream_putq (s, ifp->flags);
+  stream_putl (s, ifp->metric);
+  stream_putl (s, ifp->mtu);
+  stream_putl (s, ifp->mtu6);
+  stream_putl (s, ifp->bandwidth);
+#ifdef HAVE_STRUCT_SOCKADDR_DL
+  stream_put (s, &ifp->sdl, sizeof (ifp->sdl));
+#else
+  stream_putl (s, ifp->hw_addr_len);
+  if (ifp->hw_addr_len)
+    stream_put (s, ifp->hw_addr, ifp->hw_addr_len);
+#endif /* HAVE_STRUCT_SOCKADDR_DL */
+
+  /* Write packet size. */
+  stream_putw_at (s, 0, stream_get_endp (s));
+}
+
 /* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */
 /*
  * This function is called in the following situations:
@@ -154,28 +178,8 @@ zsend_interface_add (struct zserv *client, struct interface *ifp)
   s = client->obuf;
   stream_reset (s);
 
-  /* Message type. */
   zserv_create_header (s, ZEBRA_INTERFACE_ADD);
-
-  /* Interface information. */
-  stream_put (s, ifp->name, INTERFACE_NAMSIZ);
-  stream_putl (s, ifp->ifindex);
-  stream_putc (s, ifp->status);
-  stream_putq (s, ifp->flags);
-  stream_putl (s, ifp->metric);
-  stream_putl (s, ifp->mtu);
-  stream_putl (s, ifp->mtu6);
-  stream_putl (s, ifp->bandwidth);
-#ifdef HAVE_STRUCT_SOCKADDR_DL
-  stream_put (s, &ifp->sdl, sizeof (ifp->sdl));
-#else
-  stream_putl (s, ifp->hw_addr_len);
-  if (ifp->hw_addr_len)
-    stream_put (s, ifp->hw_addr, ifp->hw_addr_len);
-#endif /* HAVE_STRUCT_SOCKADDR_DL */
-
-  /* Write packet size. */
-  stream_putw_at (s, 0, stream_get_endp (s));
+  zserv_encode_interface (s, ifp);
 
   return zebra_server_send_message(client);
 }
@@ -192,21 +196,9 @@ zsend_interface_delete (struct zserv *client, struct interface *ifp)
 
   s = client->obuf;
   stream_reset (s);
-  
-  zserv_create_header (s, ZEBRA_INTERFACE_DELETE);
-  
-  /* Interface information. */
-  stream_put (s, ifp->name, INTERFACE_NAMSIZ);
-  stream_putl (s, ifp->ifindex);
-  stream_putc (s, ifp->status);
-  stream_putq (s, ifp->flags);
-  stream_putl (s, ifp->metric);
-  stream_putl (s, ifp->mtu);
-  stream_putl (s, ifp->mtu6);
-  stream_putl (s, ifp->bandwidth);
 
-  /* Write packet length. */
-  stream_putw_at (s, 0, stream_get_endp (s));
+  zserv_create_header (s, ZEBRA_INTERFACE_DELETE);
+  zserv_encode_interface (s, ifp);
 
   return zebra_server_send_message (client);
 }
@@ -319,19 +311,7 @@ zsend_interface_update (int cmd, struct zserv *client, struct interface *ifp)
   stream_reset (s);
 
   zserv_create_header (s, cmd);
-
-  /* Interface information. */
-  stream_put (s, ifp->name, INTERFACE_NAMSIZ);
-  stream_putl (s, ifp->ifindex);
-  stream_putc (s, ifp->status);
-  stream_putq (s, ifp->flags);
-  stream_putl (s, ifp->metric);
-  stream_putl (s, ifp->mtu);
-  stream_putl (s, ifp->mtu6);
-  stream_putl (s, ifp->bandwidth);
-
-  /* Write packet size. */
-  stream_putw_at (s, 0, stream_get_endp (s));
+  zserv_encode_interface (s, ifp);
 
   return zebra_server_send_message(client);
 }
-- 
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