ipv4: Implement IP_TRANSPARENT socket option

This patch introduces the IP_TRANSPARENT socket option: enabling that
will make the IPv4 routing omit the non-local source address check on
output. Setting IP_TRANSPARENT requires NET_ADMIN capability.

Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index 91324908fccd..80e4977631b8 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -128,7 +128,8 @@ struct inet_timewait_sock {
         __be16                  tw_dport;
         __u16                   tw_num;
         /* And these are ours. */
-        __u8                    tw_ipv6only:1;
+        __u8                    tw_ipv6only:1,
+                                tw_transparent:1;
         /* 15 bits hole, try to pack */
         __u16                   tw_ipv6_offset;
         unsigned long           tw_ttd;