netdev - [PATCH] iptunnel: make some user care TUNNEL

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Message-Id: <1545126788-24200-1-git-send-email-wenxu@ucloud.cn>
Date:   Tue, 18 Dec 2018 17:53:08 +0800
From:   wenxu@...oud.cn
To:     netdev@...r.kernel.org
Subject: [PATCH] iptunnel: make some user care TUNNEL_FLAGS available in uapi

From: wenxu <wenxu@...oud.cn>

ip l add dev tun type gretap external
ip r a 10.0.0.1 encap ip dst 192.168.152.171 id 1000 dev gretap

For gretap Key example when the command set the id but don't set the
TUNNEL_KEY flags. There is no key field in the send packet

In the lwtunnel situation, some TUNNEL_FLAGS should can be set by
userspace

Signed-off-by: wenxu <wenxu@...oud.cn>
---
 include/net/ip_tunnels.h       | 4 ----
 include/uapi/linux/if_tunnel.h | 6 ++++++
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index b0d022f..897db0a 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -144,15 +144,11 @@ struct ip_tunnel {
 	bool			ignore_df;
 };
 
-#define TUNNEL_CSUM		__cpu_to_be16(0x01)
 #define TUNNEL_ROUTING		__cpu_to_be16(0x02)
-#define TUNNEL_KEY		__cpu_to_be16(0x04)
-#define TUNNEL_SEQ		__cpu_to_be16(0x08)
 #define TUNNEL_STRICT		__cpu_to_be16(0x10)
 #define TUNNEL_REC		__cpu_to_be16(0x20)
 #define TUNNEL_VERSION		__cpu_to_be16(0x40)
 #define TUNNEL_NO_KEY		__cpu_to_be16(0x80)
-#define TUNNEL_DONT_FRAGMENT    __cpu_to_be16(0x0100)
 #define TUNNEL_OAM		__cpu_to_be16(0x0200)
 #define TUNNEL_CRIT_OPT		__cpu_to_be16(0x0400)
 #define TUNNEL_GENEVE_OPT	__cpu_to_be16(0x0800)
diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h
index 1b3d148..06c0f14 100644
--- a/include/uapi/linux/if_tunnel.h
+++ b/include/uapi/linux/if_tunnel.h
@@ -160,4 +160,10 @@ enum {
 };
 
 #define IFLA_VTI_MAX	(__IFLA_VTI_MAX - 1)
+
+#define TUNNEL_CSUM		__cpu_to_be16(0x01)
+#define TUNNEL_KEY		__cpu_to_be16(0x04)
+#define TUNNEL_SEQ		__cpu_to_be16(0x08)
+#define TUNNEL_DONT_FRAGMENT    __cpu_to_be16(0x0100)
+
 #endif /* _UAPI_IF_TUNNEL_H_ */
-- 
1.8.3.1