From a6bc04d59130c49a1dbfadffa4285b11e2ff4939 Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Thu, 29 Oct 2009 23:57:42 +0100
Subject: Implements better checks on incoming packets and LSAs in OSPF.

---
 proto/ospf/ospf.h | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

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

diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index d826c73..3e33e45 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -438,6 +438,8 @@ struct ospf_lsa_ext
   u32 tag;
 };
 
+#define LSA_SUM_TOS  0xFF000000
+#define LSA_EXT_TOS  0x7F000000
 #define LSA_EXT_EBIT 0x80000000
 
 /* Endianity swap for lsa->type */
@@ -545,6 +547,9 @@ lsa_net_count(struct ospf_lsa_header *lsa)
 
 #ifdef OSPFv3
 
+#define IPV6_PREFIX_SPACE(x) ((((x) + 63) / 32) * 4)
+#define IPV6_PREFIX_WORDS(x) (((x) + 63) / 32)
+
 static inline u32 *
 lsa_get_ipv6_prefix(u32 *buf, ip_addr *addr, int *pxlen, u8 *pxopts, u16 *rest)
 {
@@ -575,6 +580,29 @@ lsa_get_ipv6_addr(u32 *buf, ip_addr *addr)
   return buf + 4;
 }
 
+static inline u32 *
+put_ipv6_prefix(u32 *buf, ip_addr addr, u8 pxlen, u8 pxopts, u16 lh)
+{
+  *buf++ = ((pxlen << 24) | (pxopts << 16) | lh);
+
+  if (pxlen > 0)
+    *buf++ = _I0(addr);
+  if (pxlen > 32)
+    *buf++ = _I1(addr);
+  if (pxlen > 64)
+    *buf++ = _I2(addr);
+  if (pxlen > 96)
+    *buf++ = _I3(addr);
+  return buf;
+}
+
+static inline u32 *
+put_ipv6_addr(u32 *buf, ip_addr addr)
+{
+  *(ip_addr *) buf = addr;
+  return buf + 4;
+}
+
 #endif
 
 
-- 
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