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| author |   Julian Anastasov <ja@ssi.bg> | 2018-05-24 23:40:12 +0300 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2018-06-02 00:55:38 +0200 |
| commit | 31875d4970baa02e08b719fdfea6f43e9e2f7e77 (patch) | |
| tree | a7a46fcf3b45ba6de424b83cef1fc67859142fd0 /include/net/ip_vs.h | |
| parent | netfilter: nf_tables: check msg_type before nft_trans_set(trans) (diff) | |
| download | linux-dev-31875d4970baa02e08b719fdfea6f43e9e2f7e77.tar.xz linux-dev-31875d4970baa02e08b719fdfea6f43e9e2f7e77.zip | |
ipvs: register conntrack hooks for ftp
ip_vs_ftp requires conntrack modules for mangling
of FTP command responses in passive mode.
Make sure the conntrack hooks are registered when
real servers use NAT method in FTP virtual service.
The hooks will be registered while the service is
present.
Fixes: 0c66dc1ea3f0 ("netfilter: conntrack: register hooks in netns when needed by ruleset")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/ip_vs.h')
| -rw-r--r-- | include/net/ip_vs.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index eb0bec043c96..ae72d9057eda 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -643,6 +643,7 @@ struct ip_vs_service { /* alternate persistence engine */ struct ip_vs_pe __rcu *pe; + int conntrack_afmask; struct rcu_head rcu_head; }; @@ -1620,6 +1621,35 @@ static inline bool ip_vs_conn_uses_conntrack(struct ip_vs_conn *cp, return false; } +static inline int ip_vs_register_conntrack(struct ip_vs_service *svc) +{ +#if IS_ENABLED(CONFIG_NF_CONNTRACK) + int afmask = (svc->af == AF_INET6) ? 2 : 1; + int ret = 0; + + if (!(svc->conntrack_afmask & afmask)) { + ret = nf_ct_netns_get(svc->ipvs->net, svc->af); + if (ret >= 0) + svc->conntrack_afmask |= afmask; + } + return ret; +#else + return 0; +#endif +} + +static inline void ip_vs_unregister_conntrack(struct ip_vs_service *svc) +{ +#if IS_ENABLED(CONFIG_NF_CONNTRACK) + int afmask = (svc->af == AF_INET6) ? 2 : 1; + + if (svc->conntrack_afmask & afmask) { + nf_ct_netns_put(svc->ipvs->net, svc->af); + svc->conntrack_afmask &= ~afmask; + } +#endif +} + static inline int ip_vs_dest_conn_overhead(struct ip_vs_dest *dest) { |