libnl  3.2.7
mngt.h
1 /*
2  * netlink/genl/mngt.h Generic Netlink Management
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation version 2.1
7  * of the License.
8  *
9  * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
10  */
11 
12 #ifndef NETLINK_GENL_MNGT_H_
13 #define NETLINK_GENL_MNGT_H_
14 
15 #include <netlink/netlink.h>
16 #include <netlink/attr.h>
17 #include <netlink/list.h>
18 
19 #ifdef __cplusplus
20 extern "C" {
21 #endif
22 
23 struct nl_cache_ops;
24 
25 struct genl_info
26 {
27  struct sockaddr_nl * who;
28  struct nlmsghdr * nlh;
29  struct genlmsghdr * genlhdr;
30  void * userhdr;
31  struct nlattr ** attrs;
32 };
33 
34 /**
35  * @ingroup genl_mngt
36  * Generic Netlink Command
37  */
38 struct genl_cmd
39 {
40  /** Unique command identifier */
41  int c_id;
42 
43  /** Name/description of command */
44  char * c_name;
45 
46  /**
47  * Maximum attribute identifier, must be provided if
48  * a message parser is available.
49  */
50  int c_maxattr;
51 
52  int (*c_msg_parser)(struct nl_cache_ops *,
53  struct genl_cmd *,
54  struct genl_info *, void *);
55 
56  /**
57  * Attribute validation policy (optional)
58  */
60 };
61 
62 /**
63  * @ingroup genl_mngt
64  * Generic Netlink Operations
65  */
66 struct genl_ops
67 {
68  int o_family;
69  int o_id;
70  char * o_name;
71  struct nl_cache_ops * o_cache_ops;
72  struct genl_cmd * o_cmds;
73  int o_ncmds;
74 
75  /* linked list of all genl cache operations */
76  struct nl_list_head o_list;
77 };
78 
79 
80 extern int genl_register(struct nl_cache_ops *);
81 extern void genl_unregister(struct nl_cache_ops *);
82 
83 #ifdef __cplusplus
84 }
85 #endif
86 
87 #endif