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-rw-r--r--tools/include/uapi/linux/in.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/in.h b/tools/include/uapi/linux/in.h
index 4b7f2df66b99..e682ab628dfa 100644
--- a/tools/include/uapi/linux/in.h
+++ b/tools/include/uapi/linux/in.h
@@ -163,6 +163,7 @@ struct in_addr {
#define IP_MULTICAST_ALL 49
#define IP_UNICAST_IF 50
#define IP_LOCAL_PORT_RANGE 51
+#define IP_PROTOCOL 52
#define MCAST_EXCLUDE 0
#define MCAST_INCLUDE 1