libnl 1.1
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00001 /* 00002 * netlink/route/link/info-api.h Link Info API 00003 * 00004 * This library is free software; you can redistribute it and/or 00005 * modify it under the terms of the GNU Lesser General Public 00006 * License as published by the Free Software Foundation version 2.1 00007 * of the License. 00008 * 00009 * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch> 00010 */ 00011 00012 #ifndef NETLINK_LINK_INFO_API_H_ 00013 #define NETLINK_LINK_INFO_API_H_ 00014 00015 #include <netlink/netlink.h> 00016 00017 #ifdef __cplusplus 00018 extern "C" { 00019 #endif 00020 00021 /** 00022 * @ingroup link_info 00023 * 00024 * Link info operations 00025 */ 00026 struct rtnl_link_info_ops 00027 { 00028 /** Name of operations, must match name on kernel side */ 00029 char * io_name; 00030 00031 /** Reference count (internal, do not use) */ 00032 int io_refcnt; 00033 00034 /** Called to assign an info type to a link. 00035 * Has to allocate enough resources to hold attributes. Can 00036 * use link->l_info to store a pointer. */ 00037 int (*io_alloc)(struct rtnl_link *); 00038 00039 /** Called to parse the link info attribute. 00040 * Must parse the attribute and assign all values to the link. 00041 */ 00042 int (*io_parse)(struct rtnl_link *, 00043 struct nlattr *, 00044 struct nlattr *); 00045 00046 /** Called when the link object is dumped. 00047 * Must dump the info type specific attributes. */ 00048 int (*io_dump[NL_DUMP_MAX+1])(struct rtnl_link *, 00049 struct nl_dump_params *, int); 00050 00051 /** Called when a link object is cloned. 00052 * Must clone all info type specific attributes. */ 00053 int (*io_clone)(struct rtnl_link *, struct rtnl_link *); 00054 00055 /** Called when construction a link netlink message. 00056 * Must append all info type specific attributes to the message. */ 00057 int (*io_put_attrs)(struct nl_msg *, struct rtnl_link *); 00058 00059 /** Called to release all resources previously allocated 00060 * in either io_alloc() or io_parse(). */ 00061 void (*io_free)(struct rtnl_link *); 00062 00063 struct rtnl_link_info_ops * io_next; 00064 }; 00065 00066 extern struct rtnl_link_info_ops *rtnl_link_info_ops_lookup(const char *); 00067 00068 extern int rtnl_link_register_info(struct rtnl_link_info_ops *); 00069 extern int rtnl_link_unregister_info(struct rtnl_link_info_ops *); 00070 00071 #endif