package/libnl-tiny/src/include/netlink/genl/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          */
  59         struct nla_policy *     c_attr_policy;
  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