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netfilter: merge udp and udplite conntrack helpers

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udplite was copied from udp, they are virtually 100% identical.

This adds udplite tracker to udp instead, removes udplite module,
and then makes the udplite tracker builtin.

udplite will then simply re-use udp timeout settings.
It makes little sense to add separate sysctls, nowadays we have
fine-grained timeout policy support via the CT target.

old:
 text    data     bss     dec     hex filename
 1633     672       0    2305     901 nf_conntrack_proto_udp.o
 1756     672       0    2428     97c nf_conntrack_proto_udplite.o
69526   17937     268   87731   156b3 nf_conntrack.ko

new:
 text    data     bss     dec     hex filename
 2442    1184       0    3626     e2a nf_conntrack_proto_udp.o
68565   17721     268   86554   1521a nf_conntrack.ko

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal
2016-12-20 21:57:02 +01:00
committed by Pablo Neira Ayuso
parent 0a0a8d6b0e
commit e4781421e8
6 changed files with 125 additions and 341 deletions
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16
include/net/netns/conntrack.h
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@@ -69,19 +69,6 @@ struct nf_sctp_net {
};
#endif
#ifdef CONFIG_NF_CT_PROTO_UDPLITE
enum udplite_conntrack {
UDPLITE_CT_UNREPLIED,
UDPLITE_CT_REPLIED,
UDPLITE_CT_MAX
};
struct nf_udplite_net {
struct nf_proto_net pn;
unsigned int timeouts[UDPLITE_CT_MAX];
};
#endif
struct nf_ip_net {
struct nf_generic_net generic;
struct nf_tcp_net tcp;
@@ -94,9 +81,6 @@ struct nf_ip_net {
#ifdef CONFIG_NF_CT_PROTO_SCTP
struct nf_sctp_net sctp;
#endif
#ifdef CONFIG_NF_CT_PROTO_UDPLITE
struct nf_udplite_net udplite;
#endif
};
struct ct_pcpu {