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netfilter: conntrack: built-in support for DCCP

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CONFIG_NF_CT_PROTO_DCCP is no more a tristate. When set to y, connection
tracking support for DCCP protocol is built-in into nf_conntrack.ko.

footprint test:
$ ls -l net/netfilter/nf_conntrack{_proto_dccp,}.ko \
        net/ipv4/netfilter/nf_conntrack_ipv4.ko \
        net/ipv6/netfilter/nf_conntrack_ipv6.ko

(builtin)||  dccp  |  ipv4  |  ipv6  | nf_conntrack
---------++--------+--------+--------+--------------
none     || 469140 | 828755 | 828676 | 6141434
DCCP     ||   -    | 830566 | 829935 | 6533526

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Davide Caratti 2016-11-15 15:08:25 +01:00 • committed by Pablo Neira Ayuso
commit c51d39010a
9 changed files with 41 additions and 75 deletions
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3
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
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@ -340,6 +340,9 @@ static struct nf_conntrack_l4proto *builtin_l4proto6[] = {
&nf_conntrack_l4proto_tcp6,
&nf_conntrack_l4proto_udp6,
&nf_conntrack_l4proto_icmpv6,
#ifdef CONFIG_NF_CT_PROTO_DCCP
&nf_conntrack_l4proto_dccp6,
#endif
};
static int ipv6_net_init(struct net *net)