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ipvs: add checksum support for gue encapsulation

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Add checksum support for gue encapsulation with the tun_flags parameter,
which could be one of the values below:
IP_VS_TUNNEL_ENCAP_FLAG_NOCSUM
IP_VS_TUNNEL_ENCAP_FLAG_CSUM
IP_VS_TUNNEL_ENCAP_FLAG_REMCSUM

Signed-off-by: Jacky Hu <hengqing.hu@gmail.com>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Jacky Hu
2019-05-30 08:16:40 +08:00
committed by Pablo Neira Ayuso
parent 2cf6bffc49
commit 29930e314d
4 changed files with 146 additions and 17 deletions
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7
include/uapi/linux/ip_vs.h
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@@ -131,6 +131,11 @@ enum {
IP_VS_CONN_F_TUNNEL_TYPE_MAX,
};
/* Tunnel encapsulation flags */
#define IP_VS_TUNNEL_ENCAP_FLAG_NOCSUM (0)
#define IP_VS_TUNNEL_ENCAP_FLAG_CSUM (1 << 0)
#define IP_VS_TUNNEL_ENCAP_FLAG_REMCSUM (1 << 1)
/*
* The struct ip_vs_service_user and struct ip_vs_dest_user are
* used to set IPVS rules through setsockopt.
@@ -403,6 +408,8 @@ enum {
IPVS_DEST_ATTR_TUN_PORT, /* tunnel port */
IPVS_DEST_ATTR_TUN_FLAGS, /* tunnel flags */
__IPVS_DEST_ATTR_MAX,
};