libnl  1.1.4
info-api.h
1 /*
2  * netlink/route/link/info-api.h Link Info API
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) 2003-2008 Thomas Graf <tgraf@suug.ch>
10  */
11 
12 #ifndef NETLINK_LINK_INFO_API_H_
13 #define NETLINK_LINK_INFO_API_H_
14 
15 #include <netlink/netlink.h>
16 
17 #ifdef __cplusplus
18 extern "C" {
19 #endif
20 
21 /**
22  * @ingroup link_info
23  *
24  * Link info operations
25  */
27 {
28  /** Name of operations, must match name on kernel side */
29  char * io_name;
30 
31  /** Reference count (internal, do not use) */
32  int io_refcnt;
33 
34  /** Called to assign an info type to a link.
35  * Has to allocate enough resources to hold attributes. Can
36  * use link->l_info to store a pointer. */
37  int (*io_alloc)(struct rtnl_link *);
38 
39  /** Called to parse the link info attribute.
40  * Must parse the attribute and assign all values to the link.
41  */
42  int (*io_parse)(struct rtnl_link *,
43  struct nlattr *,
44  struct nlattr *);
45 
46  /** Called when the link object is dumped.
47  * Must dump the info type specific attributes. */
48  int (*io_dump[NL_DUMP_MAX+1])(struct rtnl_link *,
49  struct nl_dump_params *, int);
50 
51  /** Called when a link object is cloned.
52  * Must clone all info type specific attributes. */
53  int (*io_clone)(struct rtnl_link *, struct rtnl_link *);
54 
55  /** Called when construction a link netlink message.
56  * Must append all info type specific attributes to the message. */
57  int (*io_put_attrs)(struct nl_msg *, struct rtnl_link *);
58 
59  /** Called to release all resources previously allocated
60  * in either io_alloc() or io_parse(). */
61  void (*io_free)(struct rtnl_link *);
62 
63  struct rtnl_link_info_ops * io_next;
64 };
65 
66 extern struct rtnl_link_info_ops *rtnl_link_info_ops_lookup(const char *);
67 
68 extern int rtnl_link_register_info(struct rtnl_link_info_ops *);
69 extern int rtnl_link_unregister_info(struct rtnl_link_info_ops *);
70 
71 #endif
Dumping parameters.
Definition: types.h:36