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[4/5] ipv6: Add IPv6 multicast address flag defines

Message ID 1297811961-19249-5-git-send-email-linus.luessing@web.de
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Linus Lüssing Feb. 15, 2011, 11:19 p.m. UTC
This commit adds the missing IPv6 multicast address flag defines to
complement the already existing multicast address scope defines and to
be able to check these flags nicely in the future.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
---
 include/net/ipv6.h |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
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Patch

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 4a3cd2c..96e50e0 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -89,6 +89,18 @@ 
 #define IPV6_ADDR_SCOPE_GLOBAL		0x0e
 
 /*
+ *	Addr flags
+ */
+#ifdef __KERNEL__
+#define IPV6_ADDR_MC_FLAG_TRANSIENT(a)	\
+	((a)->s6_addr[1] & 0x10)
+#define IPV6_ADDR_MC_FLAG_PREFIX(a)	\
+	((a)->s6_addr[1] & 0x20)
+#define IPV6_ADDR_MC_FLAG_RENDEZVOUS(a)	\
+	((a)->s6_addr[1] & 0x40)
+#endif
+
+/*
  *	fragmentation header
  */