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authorGao Feng <fgao@ikuai8.com>2016-08-12 19:30:48 +0300
committerDavid S. Miller <davem@davemloft.net>2016-08-15 20:55:53 +0300
commit03459345bc00da70a35fa39bcfcf13d779097074 (patch)
treec9db9f4cd4b85de2e4df5008d2decfd96c568ca4 /include/uapi/linux/if_tunnel.h
parentcfad65c7fa9e77c27025eb5c2098cfbd4d445eab (diff)
downloadlinux-03459345bc00da70a35fa39bcfcf13d779097074.tar.xz
pptp: Refactor the struct and macros of PPTP codes
1. Use struct gre_base_hdr directly in pptp_gre_header instead of duplicated members; 2. Use existing macros like GRE_KEY, GRE_SEQ, and so on instead of duplicated macros defined by PPTP; 3. Add new macros like GRE_IS_ACK/SEQ and so on instead of PPTP_GRE_IS_A/S and so on; Signed-off-by: Gao Feng <fgao@ikuai8.com> Reviewed-by: Philip Prindeville <philipp@redfish-solutions.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/if_tunnel.h')
-rw-r--r--include/uapi/linux/if_tunnel.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h
index 60dbb200de60..361b9f0f20d7 100644
--- a/include/uapi/linux/if_tunnel.h
+++ b/include/uapi/linux/if_tunnel.h
@@ -28,8 +28,16 @@
#define GRE_FLAGS __cpu_to_be16(0x0078)
#define GRE_VERSION __cpu_to_be16(0x0007)
-#define GRE_VERSION_1 __cpu_to_be16(0x0001)
-#define GRE_PROTO_PPP __cpu_to_be16(0x880b)
+#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 {