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-rw-r--r--include/linux/if_tunnel.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h
index 660b5010c2d9..228eb4eb3129 100644
--- a/include/linux/if_tunnel.h
+++ b/include/linux/if_tunnel.h
@@ -17,6 +17,9 @@
#define GRE_FLAGS __constant_htons(0x00F8)
#define GRE_VERSION __constant_htons(0x0007)
+/* i_flags values for SIT mode */
+#define SIT_ISATAP 0x0001
+
struct ip_tunnel_parm
{
char name[IFNAMSIZ];
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