From: Gao feng <gaofeng@xxxxxxxxxxxxxx>
the struct nf_proto_net stroes proto's ctl_table_header and ctl_table,
nf_ct_l4proto_(un)register_sysctl use it to register sysctl.
there are some changes for struct nf_conntrack_l4proto:
- add field compat to identify if this proto should do compat.
- the net_id field is used to store the pernet_operations id
that belones to l4proto.
- init_net will be used to initial the proto's pernet data
and add init_net for struct nf_conntrack_l3proto too.
Acked-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Gao feng <gaofeng@xxxxxxxxxxxxxx>
---
include/net/netfilter/nf_conntrack_l3proto.h | 3 +++
include/net/netfilter/nf_conntrack_l4proto.h | 6 ++++++
include/net/netns/conntrack.h | 12 ++++++++++++
3 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/include/net/netfilter/nf_conntrack_l3proto.h b/include/net/netfilter/nf_conntrack_l3proto.h
index 9699c02..9766005 100644
--- a/include/net/netfilter/nf_conntrack_l3proto.h
+++ b/include/net/netfilter/nf_conntrack_l3proto.h
@@ -69,6 +69,9 @@ struct nf_conntrack_l3proto {
struct ctl_table *ctl_table;
#endif /* CONFIG_SYSCTL */
+ /* Init l3proto pernet data */
+ int (*init_net)(struct net *net);
+
/* Module (if any) which this is connected to. */
struct module *me;
};
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index 3b572bb..a90eab5 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -22,6 +22,8 @@ struct nf_conntrack_l4proto {
/* L4 Protocol number. */
u_int8_t l4proto;
+ u_int8_t compat;
+
/* Try to fill in the third arg: dataoff is offset past network protocol
hdr. Return true if possible. */
bool (*pkt_to_tuple)(const struct sk_buff *skb, unsigned int dataoff,
@@ -103,6 +105,10 @@ struct nf_conntrack_l4proto {
struct ctl_table *ctl_compat_table;
#endif
#endif
+ int *net_id;
+ /* Init l4proto pernet data */
+ int (*init_net)(struct net *net, u_int8_t compat);
+
/* Protocol name */
const char *name;
diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
index a053a19..1f53038 100644
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -8,6 +8,18 @@
struct ctl_table_header;
struct nf_conntrack_ecache;
+struct nf_proto_net {
+#ifdef CONFIG_SYSCTL
+ struct ctl_table_header *ctl_table_header;
+ struct ctl_table *ctl_table;
+#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
+ struct ctl_table_header *ctl_compat_header;
+ struct ctl_table *ctl_compat_table;
+#endif
+#endif
+ unsigned int users;
+};
+
struct netns_ct {
atomic_t count;
unsigned int expect_count;
--
1.7.7.6
--
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