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ipvs: add function to find tunnels

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Add ip_vs_find_tunnel() to match tunnel headers
by family, address and optional port. Use it to
properly find the tunnel real server used in
received ICMP errors.

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:
Julian Anastasov
2019-05-05 15:14:39 +03:00
committed by Pablo Neira Ayuso
parent 1da40ab6ca
commit 2aa3c9f48b
3 changed files with 40 additions and 0 deletions
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3
include/net/ip_vs.h
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@@ -1404,6 +1404,9 @@ bool ip_vs_has_real_service(struct netns_ipvs *ipvs, int af, __u16 protocol,
struct ip_vs_dest *
ip_vs_find_real_service(struct netns_ipvs *ipvs, int af, __u16 protocol,
const union nf_inet_addr *daddr, __be16 dport);
struct ip_vs_dest *ip_vs_find_tunnel(struct netns_ipvs *ipvs, int af,
const union nf_inet_addr *daddr,
__be16 tun_port);
int ip_vs_use_count_inc(void);
void ip_vs_use_count_dec(void);