[IPV6] FIB6RULE: Find source address during looking up route.

When looking up route for destination with rules with
source address restrictions, we may need to find a source
address for the traffic if not given.

Based on patch from Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 4 deletions

diff --git a/include/linux/fib_rules.h b/include/linux/fib_rules.h
index f278ba781d09..87b606b63f1e 100644
--- a/include/linux/fib_rules.h
+++ b/include/linux/fib_rules.h
@@ -5,10 +5,13 @@
 #include <linux/rtnetlink.h>
 
 /* rule is permanent, and cannot be deleted */
-#define FIB_RULE_PERMANENT      1
-#define FIB_RULE_INVERT         2
-#define FIB_RULE_UNRESOLVED     4
-#define FIB_RULE_DEV_DETACHED   8
+#define FIB_RULE_PERMANENT      0x00000001
+#define FIB_RULE_INVERT         0x00000002
+#define FIB_RULE_UNRESOLVED     0x00000004
+#define FIB_RULE_DEV_DETACHED   0x00000008
+
+/* try to find source address in routing lookups */
+#define FIB_RULE_FIND_SADDR     0x00010000
 
 struct fib_rule_hdr
 {