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| author | Andrey Vagin <avagin@openvz.org> | 2013-03-21 20:33:47 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-21 12:38:02 -0400 |
| commit | 0f29c768646809264d603574b4a1b15d2ff7ad79 (patch) | |
| tree | fd0fdab9a15804cedb8f300a99889dfc9b6ac1a5 /net/netlink/af_netlink.h | |
| parent | 953d276847b92524b34df8598bdaf30c9002c2b4 (diff) | |
| download | linux-0f29c768646809264d603574b4a1b15d2ff7ad79.tar.gz linux-0f29c768646809264d603574b4a1b15d2ff7ad79.tar.bz2 linux-0f29c768646809264d603574b4a1b15d2ff7ad79.zip | |
net: prepare netlink code for netlink diag
Move a few declarations in a header.
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Gao feng <gaofeng@cn.fujitsu.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlink/af_netlink.h')
| -rw-r--r-- | net/netlink/af_netlink.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/net/netlink/af_netlink.h b/net/netlink/af_netlink.h new file mode 100644 index 000000000000..d9acb2a1d855 --- /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 mutex cb_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 int mask; + unsigned int shift; + + unsigned int entries; + unsigned int max_shift; + + u32 rnd; +}; + +struct netlink_table { + struct nl_portid_hash hash; + struct hlist_head mc_list; + struct listeners __rcu *listeners; + unsigned int flags; + unsigned int groups; + struct mutex *cb_mutex; + struct module *module; + void (*bind)(int group); + int registered; +}; + +extern struct netlink_table *nl_table; +extern rwlock_t nl_table_lock; + +#endif |