1 #ifndef __NET_RTNETLINK_H
2 #define __NET_RTNETLINK_H
4 #include <linux/rtnetlink.h>
5 #include <net/netlink.h>
7 typedef int (*rtnl_doit_func)(struct sk_buff *, struct nlmsghdr *, void *);
8 typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
9 typedef u16 (*rtnl_calcit_func)(struct sk_buff *, struct nlmsghdr *);
11 extern int __rtnl_register(int protocol, int msgtype,
12 rtnl_doit_func, rtnl_dumpit_func,
14 extern void rtnl_register(int protocol, int msgtype,
15 rtnl_doit_func, rtnl_dumpit_func,
17 extern int rtnl_unregister(int protocol, int msgtype);
18 extern void rtnl_unregister_all(int protocol);
20 static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
22 if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg))
23 return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family;
29 * struct rtnl_link_ops - rtnetlink link operations
31 * @list: Used internally
33 * @maxtype: Highest device specific netlink attribute number
34 * @policy: Netlink policy for device specific attribute validation
35 * @validate: Optional validation function for netlink/changelink parameters
36 * @priv_size: sizeof net_device private space
37 * @setup: net_device setup function
38 * @newlink: Function for configuring and registering a new device
39 * @changelink: Function for changing parameters of an existing device
40 * @dellink: Function to remove a device
41 * @get_size: Function to calculate required room for dumping device
42 * specific netlink attributes
43 * @fill_info: Function to dump device specific netlink attributes
44 * @get_xstats_size: Function to calculate required room for dumping device
46 * @fill_xstats: Function to dump device specific statistics
47 * @get_tx_queues: Function to determine number of transmit queues to create when
48 * creating a new device.
50 struct rtnl_link_ops {
51 struct list_head list;
56 void (*setup)(struct net_device *dev);
59 const struct nla_policy *policy;
60 int (*validate)(struct nlattr *tb[],
61 struct nlattr *data[]);
63 int (*newlink)(struct net *src_net,
64 struct net_device *dev,
66 struct nlattr *data[]);
67 int (*changelink)(struct net_device *dev,
69 struct nlattr *data[]);
70 void (*dellink)(struct net_device *dev,
71 struct list_head *head);
73 size_t (*get_size)(const struct net_device *dev);
74 int (*fill_info)(struct sk_buff *skb,
75 const struct net_device *dev);
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);
80 int (*get_tx_queues)(struct net *net,
84 extern int __rtnl_link_register(struct rtnl_link_ops *ops);
85 extern void __rtnl_link_unregister(struct rtnl_link_ops *ops);
87 extern int rtnl_link_register(struct rtnl_link_ops *ops);
88 extern void rtnl_link_unregister(struct rtnl_link_ops *ops);
91 * struct rtnl_af_ops - rtnetlink address family operations
93 * @list: Used internally
94 * @family: Address family
95 * @fill_link_af: Function to fill IFLA_AF_SPEC with address family
96 * specific netlink attributes.
97 * @get_link_af_size: Function to calculate size of address family specific
99 * @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr
100 * for invalid configuration settings.
101 * @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify
102 * net_device accordingly.
105 struct list_head list;
108 int (*fill_link_af)(struct sk_buff *skb,
109 const struct net_device *dev);
110 size_t (*get_link_af_size)(const struct net_device *dev);
112 int (*validate_link_af)(const struct net_device *dev,
113 const struct nlattr *attr);
114 int (*set_link_af)(struct net_device *dev,
115 const struct nlattr *attr);
118 extern int __rtnl_af_register(struct rtnl_af_ops *ops);
119 extern void __rtnl_af_unregister(struct rtnl_af_ops *ops);
121 extern int rtnl_af_register(struct rtnl_af_ops *ops);
122 extern void rtnl_af_unregister(struct rtnl_af_ops *ops);
125 extern struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
126 extern struct net_device *rtnl_create_link(struct net *src_net, struct net *net,
127 char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[]);
128 extern int rtnl_configure_link(struct net_device *dev,
129 const struct ifinfomsg *ifm);
130 extern const struct nla_policy ifla_policy[IFLA_MAX+1];
132 #define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)