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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/uapi/linux/ip_vs.h
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@@ -124,6 +124,19 @@
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 #define IP_VS_PEDATA_MAXLEN     255
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+/* Tunnel types */
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+enum {
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+	IP_VS_CONN_F_TUNNEL_TYPE_IPIP = 0,	/* IPIP */
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+	IP_VS_CONN_F_TUNNEL_TYPE_GUE,		/* GUE */
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+	IP_VS_CONN_F_TUNNEL_TYPE_GRE,		/* GRE */
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+	IP_VS_CONN_F_TUNNEL_TYPE_MAX,
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+};
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+
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+/* Tunnel encapsulation flags */
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+#define IP_VS_TUNNEL_ENCAP_FLAG_NOCSUM		(0)
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+#define IP_VS_TUNNEL_ENCAP_FLAG_CSUM		(1 << 0)
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+#define IP_VS_TUNNEL_ENCAP_FLAG_REMCSUM		(1 << 1)
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+
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 /*
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  *	The struct ip_vs_service_user and struct ip_vs_dest_user are
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  *	used to set IPVS rules through setsockopt.
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@@ -392,6 +405,12 @@
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 	IPVS_DEST_ATTR_STATS64,		/* nested attribute for dest stats */
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+	IPVS_DEST_ATTR_TUN_TYPE,	/* tunnel type */
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+
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+	IPVS_DEST_ATTR_TUN_PORT,	/* tunnel port */
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+
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+	IPVS_DEST_ATTR_TUN_FLAGS,	/* tunnel flags */
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+
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 	__IPVS_DEST_ATTR_MAX,
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 };
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