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Diffstat (limited to 'include/uapi/linux/if_tunnel.h')
-rw-r--r--include/uapi/linux/if_tunnel.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h
index 1046f5515174..361b9f0f20d7 100644
--- a/include/uapi/linux/if_tunnel.h
+++ b/include/uapi/linux/if_tunnel.h
@@ -24,9 +24,22 @@
#define GRE_SEQ __cpu_to_be16(0x1000)
#define GRE_STRICT __cpu_to_be16(0x0800)
#define GRE_REC __cpu_to_be16(0x0700)
-#define GRE_FLAGS __cpu_to_be16(0x00F8)
+#define GRE_ACK __cpu_to_be16(0x0080)
+#define GRE_FLAGS __cpu_to_be16(0x0078)
#define GRE_VERSION __cpu_to_be16(0x0007)
+#define GRE_IS_CSUM(f) ((f) & GRE_CSUM)
+#define GRE_IS_ROUTING(f) ((f) & GRE_ROUTING)
+#define GRE_IS_KEY(f) ((f) & GRE_KEY)
+#define GRE_IS_SEQ(f) ((f) & GRE_SEQ)
+#define GRE_IS_STRICT(f) ((f) & GRE_STRICT)
+#define GRE_IS_REC(f) ((f) & GRE_REC)
+#define GRE_IS_ACK(f) ((f) & GRE_ACK)
+
+#define GRE_VERSION_1 __cpu_to_be16(0x0001)
+#define GRE_PROTO_PPP __cpu_to_be16(0x880b)
+#define GRE_PPTP_KEY_MASK __cpu_to_be32(0xffff)
+
struct ip_tunnel_parm {
char name[IFNAMSIZ];
int link;