[PATCH 1/2] net: prepare netlink code for netlink diag
Move a few declarations in a header.
Cc: "David S. Miller"
Cc: Eric Dumazet
Cc: Pavel Emelyanov
Cc: Pablo Neira Ayuso
Cc: "Eric W. Biederman"
Cc: Gao feng
Signed-off-by: Andrey Vagin
---
net/netlink/af_netlink.c | 59 -
net/netlink/af_netlink.h | 62
2 files changed, 67 insertions(+), 54 deletions(-)
create mode 100644 net/netlink/af_netlink.h
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 1e3fd5b..a500ce2 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -61,28 +61,7 @@
#include
#include
-#define NLGRPSZ(x) (ALIGN(x, sizeof(unsigned long) * 8) / 8)
-#define NLGRPLONGS(x) (NLGRPSZ(x)/sizeof(unsigned long))
-
-struct netlink_sock {
- /* struct sock has to be the first member of netlink_sock */
- struct sock sk;
- u32 portid;
- u32 dst_portid;
- u32 dst_group;
- u32 flags;
- u32 subscriptions;
- u32 ngroups;
- unsigned long *groups;
- unsigned long state;
- wait_queue_head_t wait;
- struct netlink_callback *cb;
- struct mutex*cb_mutex;
- struct mutexcb_def_mutex;
- void(*netlink_rcv)(struct sk_buff *skb);
- void(*netlink_bind)(int group);
- struct module *module;
-};
+#include "af_netlink.h"
struct listeners {
struct rcu_head rcu;
@@ -94,48 +73,20 @@ struct listeners {
#define NETLINK_BROADCAST_SEND_ERROR 0x4
#define NETLINK_RECV_NO_ENOBUFS0x8
-static inline struct netlink_sock *nlk_sk(struct sock *sk)
-{
- return container_of(sk, struct netlink_sock, sk);
-}
-
static inline int netlink_is_kernel(struct sock *sk)
{
return nlk_sk(sk)->flags & NETLINK_KERNEL_SOCKET;
}
-struct nl_portid_hash {
- struct hlist_head *table;
- unsigned long rehash_time;
-
- unsigned intmask;
- unsigned intshift;
-
- unsigned intentries;
- unsigned intmax_shift;
-
- u32 rnd;
-};
-
-struct netlink_table {
- struct nl_portid_hash hash;
- struct hlist_head mc_list;
- struct listeners __rcu *listeners;
- unsigned intflags;
- unsigned intgroups;
- struct mutex*cb_mutex;
- struct module *module;
- void(*bind)(int group);
- int registered;
-};
-
-static struct netlink_table *nl_table;
+struct netlink_table *nl_table;
+EXPORT_SYMBOL_GPL(nl_table);
static DECLARE_WAIT_QUEUE_HEAD(nl_table_wait);
static int netlink_dump(struct sock *sk);
-static DEFINE_RWLOCK(nl_table_lock);
+DEFINE_RWLOCK(nl_table_lock);
+EXPORT_SYMBOL_GPL(nl_table_lock);
static atomic_t nl_table_users = ATOMIC_INIT(0);
#define nl_deref_protected(X) rcu_dereference_protected(X,
lockdep_is_held(_table_lock));
diff --git a/net/netlink/af_netlink.h b/net/netlink/af_netlink.h
new file mode 100644
index 000..d9acb2a
--- /dev/null
+++ b/net/netlink/af_netlink.h
@@ -0,0 +1,62 @@
+#ifndef _AF_NETLINK_H
+#define _AF_NETLINK_H
+
+#include
+
+#define NLGRPSZ(x) (ALIGN(x, sizeof(unsigned long) * 8) / 8)
+#define NLGRPLONGS(x) (NLGRPSZ(x)/sizeof(unsigned long))
+
+struct netlink_sock {
+ /* struct sock has to be the first member of netlink_sock */
+ struct sock sk;
+ u32 portid;
+ u32 dst_portid;
+ u32 dst_group;
+ u32 flags;
+ u32 subscriptions;
+ u32 ngroups;
+ unsigned long *groups;
+ unsigned long state;
+ wait_queue_head_t wait;
+ struct netlink_callback *cb;
+ struct mutex*cb_mutex;
+ struct mutexcb_def_mutex;
+ void(*netlink_rcv)(struct sk_buff *skb);
+ void(*netlink_bind)(int group);
+ struct module *module;
+};
+
+static inline struct netlink_sock *nlk_sk(struct sock *sk)
+{
+ return container_of(sk, struct netlink_sock, sk);
+}
+
+struct nl_portid_hash {
+ struct hlist_head *table;
+ unsigned long rehash_time;
+
+ unsigned intmask;
+ unsigned intshift;
+
+ unsigned intentries;
+ unsigned intmax_shift;
+
+ u32 rnd;
+};
+
+struct netlink_table {
+ struct nl_portid_hash hash;
+ struct hlist_head mc_list;
+ struct listeners __rcu *listeners;
+ unsigned int
[PATCH 1/2] net: prepare netlink code for netlink diag
Move a few declarations in a header.
Cc: David S. Miller da...@davemloft.net
Cc: Eric Dumazet eduma...@google.com
Cc: Pavel Emelyanov xe...@parallels.com
Cc: Pablo Neira Ayuso pa...@netfilter.org
Cc: Eric W. Biederman ebied...@xmission.com
Cc: Gao feng gaof...@cn.fujitsu.com
Signed-off-by: Andrey Vagin ava...@openvz.org
---
net/netlink/af_netlink.c | 59 -
net/netlink/af_netlink.h | 62
2 files changed, 67 insertions(+), 54 deletions(-)
create mode 100644 net/netlink/af_netlink.h
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 1e3fd5b..a500ce2 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -61,28 +61,7 @@
#include net/scm.h
#include net/netlink.h
-#define NLGRPSZ(x) (ALIGN(x, sizeof(unsigned long) * 8) / 8)
-#define NLGRPLONGS(x) (NLGRPSZ(x)/sizeof(unsigned long))
-
-struct netlink_sock {
- /* struct sock has to be the first member of netlink_sock */
- struct sock sk;
- u32 portid;
- u32 dst_portid;
- u32 dst_group;
- u32 flags;
- u32 subscriptions;
- u32 ngroups;
- unsigned long *groups;
- unsigned long state;
- wait_queue_head_t wait;
- struct netlink_callback *cb;
- struct mutex*cb_mutex;
- struct mutexcb_def_mutex;
- void(*netlink_rcv)(struct sk_buff *skb);
- void(*netlink_bind)(int group);
- struct module *module;
-};
+#include af_netlink.h
struct listeners {
struct rcu_head rcu;
@@ -94,48 +73,20 @@ struct listeners {
#define NETLINK_BROADCAST_SEND_ERROR 0x4
#define NETLINK_RECV_NO_ENOBUFS0x8
-static inline struct netlink_sock *nlk_sk(struct sock *sk)
-{
- return container_of(sk, struct netlink_sock, sk);
-}
-
static inline int netlink_is_kernel(struct sock *sk)
{
return nlk_sk(sk)-flags NETLINK_KERNEL_SOCKET;
}
-struct nl_portid_hash {
- struct hlist_head *table;
- unsigned long rehash_time;
-
- unsigned intmask;
- unsigned intshift;
-
- unsigned intentries;
- unsigned intmax_shift;
-
- u32 rnd;
-};
-
-struct netlink_table {
- struct nl_portid_hash hash;
- struct hlist_head mc_list;
- struct listeners __rcu *listeners;
- unsigned intflags;
- unsigned intgroups;
- struct mutex*cb_mutex;
- struct module *module;
- void(*bind)(int group);
- int registered;
-};
-
-static struct netlink_table *nl_table;
+struct netlink_table *nl_table;
+EXPORT_SYMBOL_GPL(nl_table);
static DECLARE_WAIT_QUEUE_HEAD(nl_table_wait);
static int netlink_dump(struct sock *sk);
-static DEFINE_RWLOCK(nl_table_lock);
+DEFINE_RWLOCK(nl_table_lock);
+EXPORT_SYMBOL_GPL(nl_table_lock);
static atomic_t nl_table_users = ATOMIC_INIT(0);
#define nl_deref_protected(X) rcu_dereference_protected(X,
lockdep_is_held(nl_table_lock));
diff --git a/net/netlink/af_netlink.h b/net/netlink/af_netlink.h
new file mode 100644
index 000..d9acb2a
--- /dev/null
+++ b/net/netlink/af_netlink.h
@@ -0,0 +1,62 @@
+#ifndef _AF_NETLINK_H
+#define _AF_NETLINK_H
+
+#include net/sock.h
+
+#define NLGRPSZ(x) (ALIGN(x, sizeof(unsigned long) * 8) / 8)
+#define NLGRPLONGS(x) (NLGRPSZ(x)/sizeof(unsigned long))
+
+struct netlink_sock {
+ /* struct sock has to be the first member of netlink_sock */
+ struct sock sk;
+ u32 portid;
+ u32 dst_portid;
+ u32 dst_group;
+ u32 flags;
+ u32 subscriptions;
+ u32 ngroups;
+ unsigned long *groups;
+ unsigned long state;
+ wait_queue_head_t wait;
+ struct netlink_callback *cb;
+ struct mutex*cb_mutex;
+ struct mutexcb_def_mutex;
+ void(*netlink_rcv)(struct sk_buff *skb);
+ void(*netlink_bind)(int group);
+ struct module *module;
+};
+
+static inline struct netlink_sock *nlk_sk(struct sock *sk)
+{
+ return container_of(sk, struct netlink_sock, sk);
+}
+
+struct nl_portid_hash {
+ struct hlist_head *table;
+ unsigned long rehash_time;
+
+ unsigned intmask;
+ unsigned intshift;
+
+ unsigned intentries;
+ unsigned intmax_shift;
+
+ u32 rnd;
+};
+
+struct
