genetlink.h (daab7fc734a53fdeaf844b7c03053118ad1769da) genetlink.h (ff4c92d85c6f2777d2067f8552e7fefb4d1754ae)
1#ifndef __NET_GENERIC_NETLINK_H
2#define __NET_GENERIC_NETLINK_H
3
4#include <linux/genetlink.h>
5#include <net/netlink.h>
6#include <net/net_namespace.h>
7
8/**

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15 */
16struct genl_multicast_group {
17 struct genl_family *family; /* private */
18 struct list_head list; /* private */
19 char name[GENL_NAMSIZ];
20 u32 id;
21};
22
1#ifndef __NET_GENERIC_NETLINK_H
2#define __NET_GENERIC_NETLINK_H
3
4#include <linux/genetlink.h>
5#include <net/netlink.h>
6#include <net/net_namespace.h>
7
8/**

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15 */
16struct genl_multicast_group {
17 struct genl_family *family; /* private */
18 struct list_head list; /* private */
19 char name[GENL_NAMSIZ];
20 u32 id;
21};
22
23struct genl_ops;
24struct genl_info;
25
23/**
24 * struct genl_family - generic netlink family
25 * @id: protocol family idenfitier
26 * @hdrsize: length of user specific header in bytes
27 * @name: name of family
28 * @version: protocol version
29 * @maxattr: maximum number of attributes supported
30 * @netnsok: set to true if the family can handle network
31 * namespaces and should be presented in all of them
26/**
27 * struct genl_family - generic netlink family
28 * @id: protocol family idenfitier
29 * @hdrsize: length of user specific header in bytes
30 * @name: name of family
31 * @version: protocol version
32 * @maxattr: maximum number of attributes supported
33 * @netnsok: set to true if the family can handle network
34 * namespaces and should be presented in all of them
35 * @pre_doit: called before an operation's doit callback, it may
36 * do additional, common, filtering and return an error
37 * @post_doit: called after an operation's doit callback, it may
38 * undo operations done by pre_doit, for example release locks
32 * @attrbuf: buffer to store parsed attributes
33 * @ops_list: list of all assigned operations
34 * @family_list: family list
35 * @mcast_groups: multicast groups list
36 */
37struct genl_family {
38 unsigned int id;
39 unsigned int hdrsize;
40 char name[GENL_NAMSIZ];
41 unsigned int version;
42 unsigned int maxattr;
43 bool netnsok;
39 * @attrbuf: buffer to store parsed attributes
40 * @ops_list: list of all assigned operations
41 * @family_list: family list
42 * @mcast_groups: multicast groups list
43 */
44struct genl_family {
45 unsigned int id;
46 unsigned int hdrsize;
47 char name[GENL_NAMSIZ];
48 unsigned int version;
49 unsigned int maxattr;
50 bool netnsok;
51 int (*pre_doit)(struct genl_ops *ops,
52 struct sk_buff *skb,
53 struct genl_info *info);
54 void (*post_doit)(struct genl_ops *ops,
55 struct sk_buff *skb,
56 struct genl_info *info);
44 struct nlattr ** attrbuf; /* private */
45 struct list_head ops_list; /* private */
46 struct list_head family_list; /* private */
47 struct list_head mcast_groups; /* private */
48};
49
50/**
51 * struct genl_info - receiving information
52 * @snd_seq: sending sequence number
53 * @snd_pid: netlink pid of sender
54 * @nlhdr: netlink message header
55 * @genlhdr: generic netlink message header
56 * @userhdr: user specific header
57 * @attrs: netlink attributes
57 struct nlattr ** attrbuf; /* private */
58 struct list_head ops_list; /* private */
59 struct list_head family_list; /* private */
60 struct list_head mcast_groups; /* private */
61};
62
63/**
64 * struct genl_info - receiving information
65 * @snd_seq: sending sequence number
66 * @snd_pid: netlink pid of sender
67 * @nlhdr: netlink message header
68 * @genlhdr: generic netlink message header
69 * @userhdr: user specific header
70 * @attrs: netlink attributes
71 * @_net: network namespace
72 * @user_ptr: user pointers
58 */
59struct genl_info {
60 u32 snd_seq;
61 u32 snd_pid;
62 struct nlmsghdr * nlhdr;
63 struct genlmsghdr * genlhdr;
64 void * userhdr;
65 struct nlattr ** attrs;
66#ifdef CONFIG_NET_NS
67 struct net * _net;
68#endif
73 */
74struct genl_info {
75 u32 snd_seq;
76 u32 snd_pid;
77 struct nlmsghdr * nlhdr;
78 struct genlmsghdr * genlhdr;
79 void * userhdr;
80 struct nlattr ** attrs;
81#ifdef CONFIG_NET_NS
82 struct net * _net;
83#endif
84 void * user_ptr[2];
69};
70
71static inline struct net *genl_info_net(struct genl_info *info)
72{
73 return read_pnet(&info->_net);
74}
75
76static inline void genl_info_net_set(struct genl_info *info, struct net *net)
77{
78 write_pnet(&info->_net, net);
79}
80
81/**
82 * struct genl_ops - generic netlink operations
83 * @cmd: command identifier
85};
86
87static inline struct net *genl_info_net(struct genl_info *info)
88{
89 return read_pnet(&info->_net);
90}
91
92static inline void genl_info_net_set(struct genl_info *info, struct net *net)
93{
94 write_pnet(&info->_net, net);
95}
96
97/**
98 * struct genl_ops - generic netlink operations
99 * @cmd: command identifier
100 * @internal_flags: flags used by the family
84 * @flags: flags
85 * @policy: attribute validation policy
86 * @doit: standard command callback
87 * @dumpit: callback for dumpers
88 * @done: completion callback for dumps
89 * @ops_list: operations list
90 */
91struct genl_ops {
92 u8 cmd;
101 * @flags: flags
102 * @policy: attribute validation policy
103 * @doit: standard command callback
104 * @dumpit: callback for dumpers
105 * @done: completion callback for dumps
106 * @ops_list: operations list
107 */
108struct genl_ops {
109 u8 cmd;
110 u8 internal_flags;
93 unsigned int flags;
94 const struct nla_policy *policy;
95 int (*doit)(struct sk_buff *skb,
96 struct genl_info *info);
97 int (*dumpit)(struct sk_buff *skb,
98 struct netlink_callback *cb);
99 int (*done)(struct netlink_callback *cb);
100 struct list_head ops_list;

--- 191 unchanged lines hidden --- 		111 unsigned int flags;
112 const struct nla_policy *policy;
113 int (*doit)(struct sk_buff *skb,
114 struct genl_info *info);
115 int (*dumpit)(struct sk_buff *skb,
116 struct netlink_callback *cb);
117 int (*done)(struct netlink_callback *cb);
118 struct list_head ops_list;

--- 191 unchanged lines hidden ---