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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
Thomas Graf661d2962013-03-21 07:45:29 +00007typedef int (*rtnl_doit_func)(struct sk_buff *, struct nlmsghdr *);
Thomas Grafe2849862007-03-22 11:48:11 -07008typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
Greg Rose115c9b82012-02-21 16:54:48 -05009typedef u16 (*rtnl_calcit_func)(struct sk_buff *, struct nlmsghdr *);
Thomas Grafe2849862007-03-22 11:48:11 -070010
Joe Perchesefb48cc2013-09-22 10:32:23 -070011int __rtnl_register(int protocol, int msgtype,
12 rtnl_doit_func, rtnl_dumpit_func, rtnl_calcit_func);
13void rtnl_register(int protocol, int msgtype,
14 rtnl_doit_func, rtnl_dumpit_func, rtnl_calcit_func);
15int rtnl_unregister(int protocol, int msgtype);
16void rtnl_unregister_all(int protocol);
Thomas Grafe2849862007-03-22 11:48:11 -070017
Patrick McHardy3a6c2b42009-08-25 16:07:40 +020018static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
Thomas Grafc4546732007-03-25 23:24:24 -070019{
20 if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg))
21 return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family;
22 else
23 return AF_UNSPEC;
24}
25
Patrick McHardy38f7b872007-06-13 12:03:51 -070026/**
27 * struct rtnl_link_ops - rtnetlink link operations
28 *
29 * @list: Used internally
30 * @kind: Identifier
31 * @maxtype: Highest device specific netlink attribute number
32 * @policy: Netlink policy for device specific attribute validation
33 * @validate: Optional validation function for netlink/changelink parameters
34 * @priv_size: sizeof net_device private space
35 * @setup: net_device setup function
36 * @newlink: Function for configuring and registering a new device
37 * @changelink: Function for changing parameters of an existing device
38 * @dellink: Function to remove a device
39 * @get_size: Function to calculate required room for dumping device
40 * specific netlink attributes
41 * @fill_info: Function to dump device specific netlink attributes
stephen hemminger9b178762012-04-10 18:32:59 +000042 * @get_xstats_size: Function to calculate required room for dumping device
Patrick McHardy38f7b872007-06-13 12:03:51 -070043 * specific statistics
44 * @fill_xstats: Function to dump device specific statistics
Jiri Pirkod40156a2012-07-20 02:28:47 +000045 * @get_num_tx_queues: Function to determine number of transmit queues
46 * to create when creating a new device.
47 * @get_num_rx_queues: Function to determine number of receive queues
48 * to create when creating a new device.
Patrick McHardy38f7b872007-06-13 12:03:51 -070049 */
50struct rtnl_link_ops {
51 struct list_head list;
52
53 const char *kind;
54
55 size_t priv_size;
56 void (*setup)(struct net_device *dev);
57
58 int maxtype;
59 const struct nla_policy *policy;
60 int (*validate)(struct nlattr *tb[],
61 struct nlattr *data[]);
62
Eric W. Biederman81adee42009-11-08 00:53:51 -080063 int (*newlink)(struct net *src_net,
64 struct net_device *dev,
Patrick McHardy38f7b872007-06-13 12:03:51 -070065 struct nlattr *tb[],
66 struct nlattr *data[]);
67 int (*changelink)(struct net_device *dev,
68 struct nlattr *tb[],
69 struct nlattr *data[]);
Eric Dumazet23289a32009-10-27 07:06:36 +000070 void (*dellink)(struct net_device *dev,
71 struct list_head *head);
Patrick McHardy38f7b872007-06-13 12:03:51 -070072
73 size_t (*get_size)(const struct net_device *dev);
74 int (*fill_info)(struct sk_buff *skb,
75 const struct net_device *dev);
76
77 size_t (*get_xstats_size)(const struct net_device *dev);
78 int (*fill_xstats)(struct sk_buff *skb,
79 const struct net_device *dev);
Jiri Pirkod40156a2012-07-20 02:28:47 +000080 unsigned int (*get_num_tx_queues)(void);
81 unsigned int (*get_num_rx_queues)(void);
Jiri Pirkoba7d49b2014-01-22 09:05:55 +010082
83 int slave_maxtype;
84 const struct nla_policy *slave_policy;
85 int (*slave_validate)(struct nlattr *tb[],
86 struct nlattr *data[]);
87 int (*slave_changelink)(struct net_device *dev,
88 struct net_device *slave_dev,
89 struct nlattr *tb[],
90 struct nlattr *data[]);
91 size_t (*get_slave_size)(const struct net_device *dev,
92 const struct net_device *slave_dev);
93 int (*fill_slave_info)(struct sk_buff *skb,
94 const struct net_device *dev,
95 const struct net_device *slave_dev);
Patrick McHardy38f7b872007-06-13 12:03:51 -070096};
97
Joe Perchesefb48cc2013-09-22 10:32:23 -070098int __rtnl_link_register(struct rtnl_link_ops *ops);
99void __rtnl_link_unregister(struct rtnl_link_ops *ops);
Patrick McHardy38f7b872007-06-13 12:03:51 -0700100
Joe Perchesefb48cc2013-09-22 10:32:23 -0700101int rtnl_link_register(struct rtnl_link_ops *ops);
102void rtnl_link_unregister(struct rtnl_link_ops *ops);
Patrick McHardy38f7b872007-06-13 12:03:51 -0700103
Thomas Graff8ff1822010-11-16 04:30:14 +0000104/**
105 * struct rtnl_af_ops - rtnetlink address family operations
106 *
107 * @list: Used internally
108 * @family: Address family
109 * @fill_link_af: Function to fill IFLA_AF_SPEC with address family
110 * specific netlink attributes.
111 * @get_link_af_size: Function to calculate size of address family specific
stephen hemminger9b178762012-04-10 18:32:59 +0000112 * netlink attributes.
Thomas Grafcf7afbf2010-11-22 01:31:54 +0000113 * @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr
114 * for invalid configuration settings.
115 * @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify
116 * net_device accordingly.
Thomas Graff8ff1822010-11-16 04:30:14 +0000117 */
118struct rtnl_af_ops {
119 struct list_head list;
120 int family;
121
122 int (*fill_link_af)(struct sk_buff *skb,
123 const struct net_device *dev);
124 size_t (*get_link_af_size)(const struct net_device *dev);
125
Thomas Grafcf7afbf2010-11-22 01:31:54 +0000126 int (*validate_link_af)(const struct net_device *dev,
127 const struct nlattr *attr);
128 int (*set_link_af)(struct net_device *dev,
129 const struct nlattr *attr);
Thomas Graff8ff1822010-11-16 04:30:14 +0000130};
131
Joe Perchesefb48cc2013-09-22 10:32:23 -0700132void __rtnl_af_unregister(struct rtnl_af_ops *ops);
Thomas Graff8ff1822010-11-16 04:30:14 +0000133
stephen hemminger3678a9d2013-12-30 10:41:32 -0800134void rtnl_af_register(struct rtnl_af_ops *ops);
Joe Perchesefb48cc2013-09-22 10:32:23 -0700135void rtnl_af_unregister(struct rtnl_af_ops *ops);
Thomas Graff8ff1822010-11-16 04:30:14 +0000136
Joe Perchesefb48cc2013-09-22 10:32:23 -0700137struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
138struct net_device *rtnl_create_link(struct net *net, char *ifname,
139 const struct rtnl_link_ops *ops,
140 struct nlattr *tb[]);
141int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm);
Thomas Graff8ff1822010-11-16 04:30:14 +0000142
Pavel Emelianove7199282007-08-08 22:16:38 -0700143extern const struct nla_policy ifla_policy[IFLA_MAX+1];
144
Patrick McHardy38f7b872007-06-13 12:03:51 -0700145#define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)
146
Thomas Grafe2849862007-03-22 11:48:11 -0700147#endif