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| author |   Gao feng <gaofeng@cn.fujitsu.com> | 2012-06-21 04:36:47 +0000 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2012-06-27 19:13:31 +0200 |
| commit | 22ac03772f2b7cedbd531f588f0b77a77d943585 (patch) | |
| tree | 75cd298f4f5ec686565e3e7bfe1e1479c8ea5e69 /net/netfilter/nf_conntrack_proto_generic.c | |
| parent | netfilter: nf_ct_sctp: merge sctpv[4,6]_net_init into sctp_net_init (diff) | |
| download | linux-dev-22ac03772f2b7cedbd531f588f0b77a77d943585.tar.xz linux-dev-22ac03772f2b7cedbd531f588f0b77a77d943585.zip | |
netfilter: nf_ct_generic: add generic_kmemdup_sysctl_table function
This patch is a cleanup. It adds generic_kmemdup_sysctl_table to
split code into smaller chunks. Yet it prepares introduction
of nf_conntrack_proto_*_sysctl.c.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_conntrack_proto_generic.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_proto_generic.c | 39 |
1 files changed, 31 insertions, 8 deletions
diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c index d1ed7b44e079..7c11c5444194 100644 --- a/net/netfilter/nf_conntrack_proto_generic.c +++ b/net/netfilter/nf_conntrack_proto_generic.c @@ -135,34 +135,57 @@ static struct ctl_table generic_compat_sysctl_table[] = { #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ #endif /* CONFIG_SYSCTL */ -static int generic_init_net(struct net *net, u_int16_t proto) +static int generic_kmemdup_sysctl_table(struct nf_proto_net *pn, + struct nf_generic_net *gn) { - struct nf_generic_net *gn = generic_pernet(net); - struct nf_proto_net *pn = (struct nf_proto_net *)gn; - gn->timeout = nf_ct_generic_timeout; #ifdef CONFIG_SYSCTL pn->ctl_table = kmemdup(generic_sysctl_table, sizeof(generic_sysctl_table), GFP_KERNEL); if (!pn->ctl_table) return -ENOMEM; + pn->ctl_table[0].data = &gn->timeout; +#endif + return 0; +} +static int generic_kmemdup_compat_sysctl_table(struct nf_proto_net *pn, + struct nf_generic_net *gn) +{ +#ifdef CONFIG_SYSCTL #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT pn->ctl_compat_table = kmemdup(generic_compat_sysctl_table, sizeof(generic_compat_sysctl_table), GFP_KERNEL); - if (!pn->ctl_compat_table) { - kfree(pn->ctl_table); - pn->ctl_table = NULL; + if (!pn->ctl_compat_table) return -ENOMEM; - } + pn->ctl_compat_table[0].data = &gn->timeout; #endif #endif return 0; } +static int generic_init_net(struct net *net, u_int16_t proto) +{ + int ret; + struct nf_generic_net *gn = generic_pernet(net); + struct nf_proto_net *pn = &gn->pn; + + gn->timeout = nf_ct_generic_timeout; + + ret = generic_kmemdup_compat_sysctl_table(pn, gn); + if (ret < 0) + return ret; + + ret = generic_kmemdup_sysctl_table(pn, gn); + if (ret < 0) + nf_ct_kfree_compat_sysctl_table(pn); + + return ret; +} + struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly = { .l3proto = PF_UNSPEC, |