merge sctpv4_net_init and sctpv6_net_init into sctp_net_init to
reduce the redundancy codes.
and use nf_proto_net.users to identify if it's the first time
we use the nf_proto_net. when it's the first time,we will
initialized it.
Signed-off-by: Gao feng <gaofeng@xxxxxxxxxxxxxx>
---
net/netfilter/nf_conntrack_proto_sctp.c | 58 +++++++++---------------------
1 files changed, 18 insertions(+), 40 deletions(-)
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 1e7836c..dfad67e 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -707,19 +707,6 @@ static struct ctl_table sctp_compat_sysctl_table[] = {
#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
#endif
-static void sctp_init_net_data(struct sctp_net *sn)
-{
- int i;
-#ifdef CONFIG_SYSCTL
- if (!sn->pn.ctl_table) {
-#else
- if (!sn->pn.users++) {
-#endif
- for (i = 0; i < SCTP_CONNTRACK_MAX; i++)
- sn->timeouts[i] = sctp_timeouts[i];
- }
-}
-
static int sctp_kmemdup_sysctl_table(struct nf_proto_net *pn)
{
#ifdef CONFIG_SYSCTL
@@ -767,41 +754,32 @@ static int sctp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn)
return 0;
}
-static int sctpv4_init_net(struct net *net, u_int16_t proto)
+static int sctp_init_net(struct net *net, u_int16_t proto)
{
int ret;
struct sctp_net *sn = sctp_pernet(net);
- struct nf_proto_net *pn = (struct nf_proto_net *)sn;
+ struct nf_proto_net *pn = &sn->pn;
- sctp_init_net_data(sn);
-
- ret = sctp_kmemdup_compat_sysctl_table(pn);
- if (ret < 0)
- return ret;
+ if (!pn->users) {
+ int i;
+ for (i = 0; i < SCTP_CONNTRACK_MAX; i++)
+ sn->timeouts[i] = sctp_timeouts[i];
+ }
- ret = sctp_kmemdup_sysctl_table(pn);
+ if (proto == AF_INET) {
+ ret = sctp_kmemdup_compat_sysctl_table(pn);
+ if (ret < 0)
+ return ret;
-#ifdef CONFIG_SYSCTL
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
- if (ret < 0) {
+ ret = sctp_kmemdup_sysctl_table(pn);
+ if (ret < 0)
+ nf_ct_kfree_compat_sysctl_table(pn);
+ } else
+ ret = sctp_kmemdup_sysctl_table(pn);
- kfree(pn->ctl_compat_table);
- pn->ctl_compat_table = NULL;
- }
-#endif
-#endif
return ret;
}
-static int sctpv6_init_net(struct net *net, u_int16_t proto)
-{
- struct sctp_net *sn = sctp_pernet(net);
- struct nf_proto_net *pn = (struct nf_proto_net *)sn;
-
- sctp_init_net_data(sn);
- return sctp_kmemdup_sysctl_table(pn);
-}
-
static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = {
.l3proto = PF_INET,
.l4proto = IPPROTO_SCTP,
@@ -833,7 +811,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = {
},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
.net_id = &sctp_net_id,
- .init_net = sctpv4_init_net,
+ .init_net = sctp_init_net,
};
static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = {
@@ -867,7 +845,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = {
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
#endif
.net_id = &sctp_net_id,
- .init_net = sctpv6_init_net,
+ .init_net = sctp_init_net,
};
static int sctp_net_init(struct net *net)
--
1.7.7.6
--
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