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-rw-r--r--src/include/ipxe/in.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/include/ipxe/in.h b/src/include/ipxe/in.h
index 3044d6316..f91ab306a 100644
--- a/src/include/ipxe/in.h
+++ b/src/include/ipxe/in.h
@@ -2,6 +2,7 @@
#define _IPXE_IN_H
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+FILE_SECBOOT ( PERMITTED );
#include <stdint.h>
#include <byteswap.h>
@@ -33,6 +34,8 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#define IN_IS_MULTICAST( addr ) \
( ( (addr) & htonl ( 0xf0000000 ) ) == htonl ( 0xe0000000 ) )
+#define IN_IS_SMALL( mask ) ( (mask) & htonl ( 0x00000003 ) )
+
/**
* IP address structure
*/