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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.
Nicolas Dichteld37512a2015-01-15 15:11:16 +010049 * @get_link_net: Function to get the i/o netns of the device
Patrick McHardy38f7b872007-06-13 12:03:51 -070050 */
51struct rtnl_link_ops {
52 struct list_head list;
53
54 const char *kind;
55
56 size_t priv_size;
57 void (*setup)(struct net_device *dev);
58
59 int maxtype;
60 const struct nla_policy *policy;
61 int (*validate)(struct nlattr *tb[],
62 struct nlattr *data[]);
63
Eric W. Biederman81adee42009-11-08 00:53:51 -080064 int (*newlink)(struct net *src_net,
65 struct net_device *dev,
Patrick McHardy38f7b872007-06-13 12:03:51 -070066 struct nlattr *tb[],
67 struct nlattr *data[]);
68 int (*changelink)(struct net_device *dev,
69 struct nlattr *tb[],
70 struct nlattr *data[]);
Eric Dumazet23289a32009-10-27 07:06:36 +000071 void (*dellink)(struct net_device *dev,
72 struct list_head *head);
Patrick McHardy38f7b872007-06-13 12:03:51 -070073
74 size_t (*get_size)(const struct net_device *dev);
75 int (*fill_info)(struct sk_buff *skb,
76 const struct net_device *dev);
77
78 size_t (*get_xstats_size)(const struct net_device *dev);
79 int (*fill_xstats)(struct sk_buff *skb,
80 const struct net_device *dev);
Jiri Pirkod40156a2012-07-20 02:28:47 +000081 unsigned int (*get_num_tx_queues)(void);
82 unsigned int (*get_num_rx_queues)(void);
Jiri Pirkoba7d49b2014-01-22 09:05:55 +010083
84 int slave_maxtype;
85 const struct nla_policy *slave_policy;
86 int (*slave_validate)(struct nlattr *tb[],
87 struct nlattr *data[]);
88 int (*slave_changelink)(struct net_device *dev,
89 struct net_device *slave_dev,
90 struct nlattr *tb[],
91 struct nlattr *data[]);
92 size_t (*get_slave_size)(const struct net_device *dev,
93 const struct net_device *slave_dev);
94 int (*fill_slave_info)(struct sk_buff *skb,
95 const struct net_device *dev,
96 const struct net_device *slave_dev);
Nicolas Dichteld37512a2015-01-15 15:11:16 +010097 struct net *(*get_link_net)(const struct net_device *dev);
Patrick McHardy38f7b872007-06-13 12:03:51 -070098};
99
Joe Perchesefb48cc2013-09-22 10:32:23 -0700100int __rtnl_link_register(struct rtnl_link_ops *ops);
101void __rtnl_link_unregister(struct rtnl_link_ops *ops);
Patrick McHardy38f7b872007-06-13 12:03:51 -0700102
Joe Perchesefb48cc2013-09-22 10:32:23 -0700103int rtnl_link_register(struct rtnl_link_ops *ops);
104void rtnl_link_unregister(struct rtnl_link_ops *ops);
Patrick McHardy38f7b872007-06-13 12:03:51 -0700105
Thomas Graff8ff1822010-11-16 04:30:14 +0000106/**
107 * struct rtnl_af_ops - rtnetlink address family operations
108 *
109 * @list: Used internally
110 * @family: Address family
111 * @fill_link_af: Function to fill IFLA_AF_SPEC with address family
112 * specific netlink attributes.
113 * @get_link_af_size: Function to calculate size of address family specific
stephen hemminger9b178762012-04-10 18:32:59 +0000114 * netlink attributes.
Thomas Grafcf7afbf2010-11-22 01:31:54 +0000115 * @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr
116 * for invalid configuration settings.
117 * @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify
118 * net_device accordingly.
Thomas Graff8ff1822010-11-16 04:30:14 +0000119 */
120struct rtnl_af_ops {
121 struct list_head list;
122 int family;
123
124 int (*fill_link_af)(struct sk_buff *skb,
Sowmini Varadhand5566fd2015-09-11 16:48:48 -0400125 const struct net_device *dev,
126 u32 ext_filter_mask);
Arad, Ronenb1974ed2015-10-19 09:23:28 -0700127 size_t (*get_link_af_size)(const struct net_device *dev,
128 u32 ext_filter_mask);
Thomas Graff8ff1822010-11-16 04:30:14 +0000129
Thomas Grafcf7afbf2010-11-22 01:31:54 +0000130 int (*validate_link_af)(const struct net_device *dev,
131 const struct nlattr *attr);
132 int (*set_link_af)(struct net_device *dev,
133 const struct nlattr *attr);
Thomas Graff8ff1822010-11-16 04:30:14 +0000134};
135
Joe Perchesefb48cc2013-09-22 10:32:23 -0700136void __rtnl_af_unregister(struct rtnl_af_ops *ops);
Thomas Graff8ff1822010-11-16 04:30:14 +0000137
stephen hemminger3678a9d2013-12-30 10:41:32 -0800138void rtnl_af_register(struct rtnl_af_ops *ops);
Joe Perchesefb48cc2013-09-22 10:32:23 -0700139void rtnl_af_unregister(struct rtnl_af_ops *ops);
Thomas Graff8ff1822010-11-16 04:30:14 +0000140
Joe Perchesefb48cc2013-09-22 10:32:23 -0700141struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
Thomas Graf78ebb0d2015-04-10 01:45:53 +0200142struct net_device *rtnl_create_link(struct net *net, const char *ifname,
Tom Gundersen55177502014-07-14 16:37:25 +0200143 unsigned char name_assign_type,
Joe Perchesefb48cc2013-09-22 10:32:23 -0700144 const struct rtnl_link_ops *ops,
145 struct nlattr *tb[]);
Thomas Graf614732e2015-07-21 10:44:06 +0200146int rtnl_delete_link(struct net_device *dev);
Joe Perchesefb48cc2013-09-22 10:32:23 -0700147int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm);
Thomas Graff8ff1822010-11-16 04:30:14 +0000148
Jiri Pirkof7b12602014-02-18 20:53:18 +0100149int rtnl_nla_parse_ifla(struct nlattr **tb, const struct nlattr *head, int len);
Pavel Emelianove7199282007-08-08 22:16:38 -0700150
Patrick McHardy38f7b872007-06-13 12:03:51 -0700151#define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)
152
Thomas Grafe2849862007-03-22 11:48:11 -0700153#endif