[NET]: Introducing socket mark socket option.

A userspace program may wish to set the mark for each packets its send
without using the netfilter MARK target. Changing the mark can be used
for mark based routing without netfilter or for packet filtering.

It requires CAP_NET_ADMIN capability.

Signed-off-by: Laszlo Attila Toth <panther@balabit.hu>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/asm-s390/socket.h b/include/asm-s390/socket.h
index 1161ebe3dec9..c786ab623b2d 100644
--- a/include/asm-s390/socket.h
+++ b/include/asm-s390/socket.h
@@ -60,4 +60,6 @@
 #define SO_TIMESTAMPNS          35
 #define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
 
+#define SO_MARK                 36
+
 #endif /* _ASM_SOCKET_H */