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Message-Id: <1356662206-2260-13-git-send-email-gaofeng@cn.fujitsu.com>
Date: Fri, 28 Dec 2012 10:36:39 +0800
From: Gao feng <gaofeng@...fujitsu.com>
To: netfilter-devel@...r.kernel.org
Cc: netdev@...r.kernel.org, canqunzhang@...il.com, kaber@...sh.net,
pablo@...filter.org, ebiederm@...ssion.com,
Gao feng <gaofeng@...fujitsu.com>
Subject: [PATCH 12/19] netfilter: l4proto: prepare reworking l4proto support for netns
Prepare to move the code that register/unregister l4proto
to the module_init/exit context.
This patch deletes the codes that register/unregister l4proto,
this code will be added in next patches.
Signed-off-by: Gao feng <gaofeng@...fujitsu.com>
---
include/net/netfilter/nf_conntrack_l4proto.h | 18 ++++++++++----
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c | 24 +++++++++----------
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 24 +++++++++----------
net/netfilter/nf_conntrack_proto.c | 33 ++++++++++----------------
net/netfilter/nf_conntrack_proto_dccp.c | 20 ++++++++--------
net/netfilter/nf_conntrack_proto_gre.c | 6 +++--
net/netfilter/nf_conntrack_proto_sctp.c | 14 +++++------
net/netfilter/nf_conntrack_proto_udplite.c | 17 +++++++------
8 files changed, 80 insertions(+), 76 deletions(-)
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index c3be4ae..c001ef7 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -121,11 +121,19 @@ extern struct nf_conntrack_l4proto *
nf_ct_l4proto_find_get(u_int16_t l3proto, u_int8_t l4proto);
extern void nf_ct_l4proto_put(struct nf_conntrack_l4proto *p);
-/* Protocol registration. */
-extern int nf_conntrack_l4proto_register(struct net *net,
- struct nf_conntrack_l4proto *proto);
-extern void nf_conntrack_l4proto_unregister(struct net *net,
- struct nf_conntrack_l4proto *proto);
+/* Protocol pernet registration. */
+extern int
+nf_conntrack_l4proto_pernet_register(struct net *net,
+ struct nf_conntrack_l4proto *proto);
+extern void
+nf_conntrack_l4proto_pernet_unregister(struct net *net,
+ struct nf_conntrack_l4proto *proto);
+
+/* Protocol global registration. */
+extern int
+nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *proto);
+extern void
+nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *proto);
static inline void nf_ct_kfree_compat_sysctl_table(struct nf_proto_net *pn)
{
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index a942add..933da838 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -420,20 +420,20 @@ static int ipv4_net_init(struct net *net)
{
int ret = 0;
- ret = nf_conntrack_l4proto_register(net,
- &nf_conntrack_l4proto_tcp4);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_tcp4);
if (ret < 0) {
pr_err("nf_conntrack_l4proto_tcp4 :protocol register failed\n");
goto out_tcp;
}
- ret = nf_conntrack_l4proto_register(net,
- &nf_conntrack_l4proto_udp4);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_udp4);
if (ret < 0) {
pr_err("nf_conntrack_l4proto_udp4 :protocol register failed\n");
goto out_udp;
}
- ret = nf_conntrack_l4proto_register(net,
- &nf_conntrack_l4proto_icmp);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_icmp);
if (ret < 0) {
pr_err("nf_conntrack_l4proto_icmp4 :protocol register failed\n");
goto out_icmp;
@@ -446,13 +446,13 @@ static int ipv4_net_init(struct net *net)
}
return 0;
out_ipv4:
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_icmp);
out_icmp:
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_udp4);
out_udp:
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_tcp4);
out_tcp:
return ret;
@@ -462,11 +462,11 @@ static void ipv4_net_exit(struct net *net)
{
nf_conntrack_l3proto_pernet_unregister(net,
&nf_conntrack_l3proto_ipv4);
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_icmp);
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_udp4);
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_tcp4);
}
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index 07ec50b..8db8182 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -421,20 +421,20 @@ static int ipv6_net_init(struct net *net)
{
int ret = 0;
- ret = nf_conntrack_l4proto_register(net,
- &nf_conntrack_l4proto_tcp6);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_tcp6);
if (ret < 0) {
printk(KERN_ERR "nf_conntrack_l4proto_tcp6: protocol register failed\n");
goto out;
}
- ret = nf_conntrack_l4proto_register(net,
- &nf_conntrack_l4proto_udp6);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_udp6);
if (ret < 0) {
printk(KERN_ERR "nf_conntrack_l4proto_udp6: protocol register failed\n");
goto cleanup_tcp6;
}
- ret = nf_conntrack_l4proto_register(net,
- &nf_conntrack_l4proto_icmpv6);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_icmpv6);
if (ret < 0) {
printk(KERN_ERR "nf_conntrack_l4proto_icmp6: protocol register failed\n");
goto cleanup_udp6;
@@ -447,13 +447,13 @@ static int ipv6_net_init(struct net *net)
}
return 0;
cleanup_icmpv6:
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_icmpv6);
cleanup_udp6:
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_udp6);
cleanup_tcp6:
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_tcp6);
out:
return ret;
@@ -463,11 +463,11 @@ static void ipv6_net_exit(struct net *net)
{
nf_conntrack_l3proto_pernet_unregister(net,
&nf_conntrack_l3proto_ipv6);
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_icmpv6);
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_udp6);
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_tcp6);
}
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index 5a625a6..ff38923 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -369,8 +369,8 @@ void nf_ct_l4proto_unregister_sysctl(struct net *net,
/* FIXME: Allow NULL functions and sub in pointers to generic for
them. --RR */
-static int
-nf_conntrack_l4proto_register_net(struct nf_conntrack_l4proto *l4proto)
+int
+nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *l4proto)
{
int ret = 0;
@@ -424,9 +424,10 @@ out_unlock:
mutex_unlock(&nf_ct_proto_mutex);
return ret;
}
+EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_register);
-int nf_conntrack_l4proto_register(struct net *net,
- struct nf_conntrack_l4proto *l4proto)
+int nf_conntrack_l4proto_pernet_register(struct net *net,
+ struct nf_conntrack_l4proto *l4proto)
{
int ret = 0;
struct nf_proto_net *pn = NULL;
@@ -445,22 +446,14 @@ int nf_conntrack_l4proto_register(struct net *net,
if (ret < 0)
goto out;
- if (net == &init_net) {
- ret = nf_conntrack_l4proto_register_net(l4proto);
- if (ret < 0) {
- nf_ct_l4proto_unregister_sysctl(net, pn, l4proto);
- goto out;
- }
- }
-
pn->users++;
out:
return ret;
}
-EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_register);
+EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_pernet_register);
-static void
-nf_conntrack_l4proto_unregister_net(struct nf_conntrack_l4proto *l4proto)
+void
+nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *l4proto)
{
BUG_ON(l4proto->l3proto >= PF_MAX);
@@ -475,15 +468,13 @@ nf_conntrack_l4proto_unregister_net(struct nf_conntrack_l4proto *l4proto)
synchronize_rcu();
}
+EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_unregister);
-void nf_conntrack_l4proto_unregister(struct net *net,
- struct nf_conntrack_l4proto *l4proto)
+void nf_conntrack_l4proto_pernet_unregister(struct net *net,
+ struct nf_conntrack_l4proto *l4proto)
{
struct nf_proto_net *pn = NULL;
- if (net == &init_net)
- nf_conntrack_l4proto_unregister_net(l4proto);
-
pn = nf_ct_l4proto_net(net, l4proto);
if (pn == NULL)
return;
@@ -494,7 +485,7 @@ void nf_conntrack_l4proto_unregister(struct net *net,
/* Remove all contrack entries for this protocol */
nf_ct_iterate_cleanup(net, kill_l4proto, l4proto);
}
-EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_unregister);
+EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_pernet_unregister);
int nf_conntrack_proto_pernet_init(struct net *net)
{
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index a8ae287..3850d68 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -935,32 +935,32 @@ static struct nf_conntrack_l4proto dccp_proto6 __read_mostly = {
static __net_init int dccp_net_init(struct net *net)
{
int ret = 0;
- ret = nf_conntrack_l4proto_register(net,
- &dccp_proto4);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &dccp_proto4);
if (ret < 0) {
pr_err("nf_conntrack_l4proto_dccp4 :protocol register failed.\n");
goto out;
}
- ret = nf_conntrack_l4proto_register(net,
- &dccp_proto6);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &dccp_proto6);
if (ret < 0) {
pr_err("nf_conntrack_l4proto_dccp6 :protocol register failed.\n");
goto cleanup_dccp4;
}
return 0;
cleanup_dccp4:
- nf_conntrack_l4proto_unregister(net,
- &dccp_proto4);
+ nf_conntrack_l4proto_pernet_unregister(net,
+ &dccp_proto4);
out:
return ret;
}
static __net_exit void dccp_net_exit(struct net *net)
{
- nf_conntrack_l4proto_unregister(net,
- &dccp_proto6);
- nf_conntrack_l4proto_unregister(net,
- &dccp_proto4);
+ nf_conntrack_l4proto_pernet_unregister(net,
+ &dccp_proto6);
+ nf_conntrack_l4proto_pernet_unregister(net,
+ &dccp_proto4);
}
static struct pernet_operations dccp_net_ops = {
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index b09b7af..f5f14c2 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -397,7 +397,8 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_gre4 __read_mostly = {
static int proto_gre_net_init(struct net *net)
{
int ret = 0;
- ret = nf_conntrack_l4proto_register(net, &nf_conntrack_l4proto_gre4);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_gre4);
if (ret < 0)
pr_err("nf_conntrack_l4proto_gre4 :protocol register failed.\n");
return ret;
@@ -405,7 +406,8 @@ static int proto_gre_net_init(struct net *net)
static void proto_gre_net_exit(struct net *net)
{
- nf_conntrack_l4proto_unregister(net, &nf_conntrack_l4proto_gre4);
+ nf_conntrack_l4proto_pernet_unregister(net,
+ &nf_conntrack_l4proto_gre4);
nf_ct_gre_keymap_flush(net);
}
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index c746d61..0aa91dd 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -853,14 +853,14 @@ static int sctp_net_init(struct net *net)
{
int ret = 0;
- ret = nf_conntrack_l4proto_register(net,
- &nf_conntrack_l4proto_sctp4);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_sctp4);
if (ret < 0) {
pr_err("nf_conntrack_l4proto_sctp4 :protocol register failed.\n");
goto out;
}
- ret = nf_conntrack_l4proto_register(net,
- &nf_conntrack_l4proto_sctp6);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_sctp6);
if (ret < 0) {
pr_err("nf_conntrack_l4proto_sctp6 :protocol register failed.\n");
goto cleanup_sctp4;
@@ -868,7 +868,7 @@ static int sctp_net_init(struct net *net)
return 0;
cleanup_sctp4:
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_sctp4);
out:
return ret;
@@ -876,9 +876,9 @@ out:
static void sctp_net_exit(struct net *net)
{
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_sctp6);
- nf_conntrack_l4proto_unregister(net,
+ nf_conntrack_l4proto_pernet_unregister(net,
&nf_conntrack_l4proto_sctp4);
}
diff --git a/net/netfilter/nf_conntrack_proto_udplite.c b/net/netfilter/nf_conntrack_proto_udplite.c
index 4b66df2..56e53c0 100644
--- a/net/netfilter/nf_conntrack_proto_udplite.c
+++ b/net/netfilter/nf_conntrack_proto_udplite.c
@@ -336,14 +336,14 @@ static int udplite_net_init(struct net *net)
{
int ret = 0;
- ret = nf_conntrack_l4proto_register(net,
- &nf_conntrack_l4proto_udplite4);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_udplite4);
if (ret < 0) {
pr_err("nf_conntrack_l4proto_udplite4 :protocol register failed.\n");
goto out;
}
- ret = nf_conntrack_l4proto_register(net,
- &nf_conntrack_l4proto_udplite6);
+ ret = nf_conntrack_l4proto_pernet_register(net,
+ &nf_conntrack_l4proto_udplite6);
if (ret < 0) {
pr_err("nf_conntrack_l4proto_udplite4 :protocol register failed.\n");
goto cleanup_udplite4;
@@ -351,15 +351,18 @@ static int udplite_net_init(struct net *net)
return 0;
cleanup_udplite4:
- nf_conntrack_l4proto_unregister(net, &nf_conntrack_l4proto_udplite4);
+ nf_conntrack_l4proto_pernet_unregister(net,
+ &nf_conntrack_l4proto_udplite4);
out:
return ret;
}
static void udplite_net_exit(struct net *net)
{
- nf_conntrack_l4proto_unregister(net, &nf_conntrack_l4proto_udplite6);
- nf_conntrack_l4proto_unregister(net, &nf_conntrack_l4proto_udplite4);
+ nf_conntrack_l4proto_pernet_unregister(net,
+ &nf_conntrack_l4proto_udplite6);
+ nf_conntrack_l4proto_pernet_unregister(net,
+ &nf_conntrack_l4proto_udplite4);
}
static struct pernet_operations udplite_net_ops = {
--
1.7.11.7
--
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