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Thomas Grafe2849862007-03-22 11:48:11 -07001#ifndef __NET_RTNETLINK_H
2#define __NET_RTNETLINK_H
3
4#include <linux/rtnetlink.h>
5#include <net/netlink.h>
6
7typedef int (*rtnl_doit_func)(struct sk_buff *, struct nlmsghdr *, void *);
8typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
9
10extern int __rtnl_register(int protocol, int msgtype,
11 rtnl_doit_func, rtnl_dumpit_func);
12extern void rtnl_register(int protocol, int msgtype,
13 rtnl_doit_func, rtnl_dumpit_func);
14extern int rtnl_unregister(int protocol, int msgtype);
15extern void rtnl_unregister_all(int protocol);
Thomas Grafe2849862007-03-22 11:48:11 -070016
Patrick McHardy3a6c2b42009-08-25 16:07:40 +020017static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
Thomas Grafc4546732007-03-25 23:24:24 -070018{
19 if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg))
20 return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family;
21 else
22 return AF_UNSPEC;
23}
24
Patrick McHardy38f7b872007-06-13 12:03:51 -070025/**
26 * struct rtnl_link_ops - rtnetlink link operations
27 *
28 * @list: Used internally
29 * @kind: Identifier
30 * @maxtype: Highest device specific netlink attribute number
31 * @policy: Netlink policy for device specific attribute validation
32 * @validate: Optional validation function for netlink/changelink parameters
33 * @priv_size: sizeof net_device private space
34 * @setup: net_device setup function
35 * @newlink: Function for configuring and registering a new device
36 * @changelink: Function for changing parameters of an existing device
37 * @dellink: Function to remove a device
38 * @get_size: Function to calculate required room for dumping device
39 * specific netlink attributes
40 * @fill_info: Function to dump device specific netlink attributes
41 * @get_xstats_size: Function to calculate required room for dumping devic
42 * specific statistics
43 * @fill_xstats: Function to dump device specific statistics
44 */
45struct rtnl_link_ops {
46 struct list_head list;
47
48 const char *kind;
49
50 size_t priv_size;
51 void (*setup)(struct net_device *dev);
52
53 int maxtype;
54 const struct nla_policy *policy;
55 int (*validate)(struct nlattr *tb[],
56 struct nlattr *data[]);
57
58 int (*newlink)(struct net_device *dev,
59 struct nlattr *tb[],
60 struct nlattr *data[]);
61 int (*changelink)(struct net_device *dev,
62 struct nlattr *tb[],
63 struct nlattr *data[]);
64 void (*dellink)(struct net_device *dev);
65
66 size_t (*get_size)(const struct net_device *dev);
67 int (*fill_info)(struct sk_buff *skb,
68 const struct net_device *dev);
69
70 size_t (*get_xstats_size)(const struct net_device *dev);
71 int (*fill_xstats)(struct sk_buff *skb,
72 const struct net_device *dev);
Eric Dumazet2e59af32009-09-02 18:03:00 -070073 int (*get_tx_queues)(struct net *net, struct nlattr *tb[],
74 unsigned int *tx_queues,
75 unsigned int *real_tx_queues);
Patrick McHardy38f7b872007-06-13 12:03:51 -070076};
77
78extern int __rtnl_link_register(struct rtnl_link_ops *ops);
79extern void __rtnl_link_unregister(struct rtnl_link_ops *ops);
Pavel Emelyanov669f87b2008-04-16 00:46:52 -070080extern void rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops);
Patrick McHardy38f7b872007-06-13 12:03:51 -070081
82extern int rtnl_link_register(struct rtnl_link_ops *ops);
83extern void rtnl_link_unregister(struct rtnl_link_ops *ops);
84
Eric W. Biederman881d9662007-09-17 11:56:21 -070085extern struct net_device *rtnl_create_link(struct net *net, char *ifname,
Pavel Emelianove7199282007-08-08 22:16:38 -070086 const struct rtnl_link_ops *ops, struct nlattr *tb[]);
87extern const struct nla_policy ifla_policy[IFLA_MAX+1];
88
Patrick McHardy38f7b872007-06-13 12:03:51 -070089#define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)
90
Thomas Grafe2849862007-03-22 11:48:11 -070091#endif