From d5356072ac18d5b0eb12f14afca6bfbea702dda2 Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Thu, 4 Nov 2010 17:22:43 +0100
Subject: Fixes a bug in LSA update of large LSAs.

---
 proto/ospf/packet.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'proto/ospf/packet.h')

diff --git a/proto/ospf/packet.h b/proto/ospf/packet.h
index 1c74a70..c0185b9 100644
--- a/proto/ospf/packet.h
+++ b/proto/ospf/packet.h
@@ -21,4 +21,17 @@ void ospf_send_to(struct ospf_iface *ifa, ip_addr ip);
 
 static inline void * ospf_tx_buffer(struct ospf_iface *ifa) { return ifa->sk->tbuf; }
 
+static inline unsigned
+ospf_pkt_bufsize(struct ospf_iface *ifa)
+{
+#ifdef OSPFv2
+  unsigned headers = (ifa->autype == OSPF_AUTH_CRYPT) ? OSPF_AUTH_CRYPT_SIZE : 0;
+#else
+  unsigned headers = 0;
+#endif
+
+  return ifa->sk->tbsize - headers;
+}
+
+
 #endif /* _BIRD_OSPF_PACKET_H_ */
-- 
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