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 *);
8 typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
9 typedef u16 (*rtnl_calcit_func)(struct sk_buff *, struct nlmsghdr *);
11 int __rtnl_register(int protocol, int msgtype,
12 rtnl_doit_func, rtnl_dumpit_func, rtnl_calcit_func);
13 void rtnl_register(int protocol, int msgtype,
14 rtnl_doit_func, rtnl_dumpit_func, rtnl_calcit_func);
15 int rtnl_unregister(int protocol, int msgtype);
16 void rtnl_unregister_all(int protocol);
18 static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
20 if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg))
21 return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family;
27 * struct rtnl_link_ops - rtnetlink link operations
29 * @list: Used internally
31 * @netns_refund: Physical device, move to init_net on netns exit
32 * @maxtype: Highest device specific netlink attribute number
33 * @policy: Netlink policy for device specific attribute validation
34 * @validate: Optional validation function for netlink/changelink parameters
35 * @priv_size: sizeof net_device private space
36 * @setup: net_device setup function
37 * @newlink: Function for configuring and registering a new device
38 * @changelink: Function for changing parameters of an existing device
39 * @dellink: Function to remove a device
40 * @get_size: Function to calculate required room for dumping device
41 * specific netlink attributes
42 * @fill_info: Function to dump device specific netlink attributes
43 * @get_xstats_size: Function to calculate required room for dumping device
45 * @fill_xstats: Function to dump device specific statistics
46 * @get_num_tx_queues: Function to determine number of transmit queues
47 * to create when creating a new device.
48 * @get_num_rx_queues: Function to determine number of receive queues
49 * to create when creating a new device.
50 * @get_link_net: Function to get the i/o netns of the device
51 * @get_linkxstats_size: Function to calculate the required room for
52 * dumping device-specific extended link stats
53 * @fill_linkxstats: Function to dump device-specific extended link stats
55 struct rtnl_link_ops {
56 struct list_head list;
61 void (*setup)(struct net_device *dev);
64 const struct nla_policy *policy;
65 int (*validate)(struct nlattr *tb[],
66 struct nlattr *data[]);
68 int (*newlink)(struct net *src_net,
69 struct net_device *dev,
71 struct nlattr *data[]);
72 int (*changelink)(struct net_device *dev,
74 struct nlattr *data[]);
75 void (*dellink)(struct net_device *dev,
76 struct list_head *head);
78 size_t (*get_size)(const struct net_device *dev);
79 int (*fill_info)(struct sk_buff *skb,
80 const struct net_device *dev);
82 size_t (*get_xstats_size)(const struct net_device *dev);
83 int (*fill_xstats)(struct sk_buff *skb,
84 const struct net_device *dev);
85 unsigned int (*get_num_tx_queues)(void);
86 unsigned int (*get_num_rx_queues)(void);
90 const struct nla_policy *slave_policy;
91 int (*slave_validate)(struct nlattr *tb[],
92 struct nlattr *data[]);
93 int (*slave_changelink)(struct net_device *dev,
94 struct net_device *slave_dev,
96 struct nlattr *data[]);
97 size_t (*get_slave_size)(const struct net_device *dev,
98 const struct net_device *slave_dev);
99 int (*fill_slave_info)(struct sk_buff *skb,
100 const struct net_device *dev,
101 const struct net_device *slave_dev);
102 struct net *(*get_link_net)(const struct net_device *dev);
103 size_t (*get_linkxstats_size)(const struct net_device *dev,
105 int (*fill_linkxstats)(struct sk_buff *skb,
106 const struct net_device *dev,
107 int *prividx, int attr);
110 int __rtnl_link_register(struct rtnl_link_ops *ops);
111 void __rtnl_link_unregister(struct rtnl_link_ops *ops);
113 int rtnl_link_register(struct rtnl_link_ops *ops);
114 void rtnl_link_unregister(struct rtnl_link_ops *ops);
117 * struct rtnl_af_ops - rtnetlink address family operations
119 * @list: Used internally
120 * @family: Address family
121 * @fill_link_af: Function to fill IFLA_AF_SPEC with address family
122 * specific netlink attributes.
123 * @get_link_af_size: Function to calculate size of address family specific
124 * netlink attributes.
125 * @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr
126 * for invalid configuration settings.
127 * @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify
128 * net_device accordingly.
131 struct list_head list;
134 int (*fill_link_af)(struct sk_buff *skb,
135 const struct net_device *dev,
136 u32 ext_filter_mask);
137 size_t (*get_link_af_size)(const struct net_device *dev,
138 u32 ext_filter_mask);
140 int (*validate_link_af)(const struct net_device *dev,
141 const struct nlattr *attr);
142 int (*set_link_af)(struct net_device *dev,
143 const struct nlattr *attr);
146 void __rtnl_af_unregister(struct rtnl_af_ops *ops);
148 void rtnl_af_register(struct rtnl_af_ops *ops);
149 void rtnl_af_unregister(struct rtnl_af_ops *ops);
151 struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
152 struct net_device *rtnl_create_link(struct net *net, const char *ifname,
153 unsigned char name_assign_type,
154 const struct rtnl_link_ops *ops,
155 struct nlattr *tb[]);
156 int rtnl_delete_link(struct net_device *dev);
157 int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm);
159 int rtnl_nla_parse_ifla(struct nlattr **tb, const struct nlattr *head, int len);
161 #define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)