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1#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 *);
9typedef u16 (*rtnl_calcit_func)(struct sk_buff *);
10
11extern int __rtnl_register(int protocol, int msgtype,
12 rtnl_doit_func, rtnl_dumpit_func,
13 rtnl_calcit_func);
14extern void rtnl_register(int protocol, int msgtype,
15 rtnl_doit_func, rtnl_dumpit_func,
16 rtnl_calcit_func);
17extern int rtnl_unregister(int protocol, int msgtype);
18extern void rtnl_unregister_all(int protocol);
19
20static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
21{
22 if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg))
23 return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family;
24 else
25 return AF_UNSPEC;
26}
27
28/**
29 * struct rtnl_link_ops - rtnetlink link operations
30 *
31 * @list: Used internally
32 * @kind: Identifier
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 devic
45 * specific statistics
46 * @fill_xstats: Function to dump device specific statistics
47 */
48struct rtnl_link_ops {
49 struct list_head list;
50
51 const char *kind;
52
53 size_t priv_size;
54 void (*setup)(struct net_device *dev);
55
56 int maxtype;
57 const struct nla_policy *policy;
58 int (*validate)(struct nlattr *tb[],
59 struct nlattr *data[]);
60
61 int (*newlink)(struct net *src_net,
62 struct net_device *dev,
63 struct nlattr *tb[],
64 struct nlattr *data[]);
65 int (*changelink)(struct net_device *dev,
66 struct nlattr *tb[],
67 struct nlattr *data[]);
68 void (*dellink)(struct net_device *dev,
69 struct list_head *head);
70
71 size_t (*get_size)(const struct net_device *dev);
72 int (*fill_info)(struct sk_buff *skb,
73 const struct net_device *dev);
74
75 size_t (*get_xstats_size)(const struct net_device *dev);
76 int (*fill_xstats)(struct sk_buff *skb,
77 const struct net_device *dev);
78 int (*get_tx_queues)(struct net *net, struct nlattr *tb[],
79 unsigned int *tx_queues,
80 unsigned int *real_tx_queues);
81};
82
83extern int __rtnl_link_register(struct rtnl_link_ops *ops);
84extern void __rtnl_link_unregister(struct rtnl_link_ops *ops);
85
86extern int rtnl_link_register(struct rtnl_link_ops *ops);
87extern void rtnl_link_unregister(struct rtnl_link_ops *ops);
88
89/**
90 * struct rtnl_af_ops - rtnetlink address family operations
91 *
92 * @list: Used internally
93 * @family: Address family
94 * @fill_link_af: Function to fill IFLA_AF_SPEC with address family
95 * specific netlink attributes.
96 * @get_link_af_size: Function to calculate size of address family specific
97 * netlink attributes exlusive the container attribute.
98 * @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr
99 * for invalid configuration settings.
100 * @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify
101 * net_device accordingly.
102 */
103struct rtnl_af_ops {
104 struct list_head list;
105 int family;
106
107 int (*fill_link_af)(struct sk_buff *skb,
108 const struct net_device *dev);
109 size_t (*get_link_af_size)(const struct net_device *dev);
110
111 int (*validate_link_af)(const struct net_device *dev,
112 const struct nlattr *attr);
113 int (*set_link_af)(struct net_device *dev,
114 const struct nlattr *attr);
115};
116
117extern int __rtnl_af_register(struct rtnl_af_ops *ops);
118extern void __rtnl_af_unregister(struct rtnl_af_ops *ops);
119
120extern int rtnl_af_register(struct rtnl_af_ops *ops);
121extern void rtnl_af_unregister(struct rtnl_af_ops *ops);
122
123
124extern struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
125extern struct net_device *rtnl_create_link(struct net *src_net, struct net *net,
126 char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[]);
127extern int rtnl_configure_link(struct net_device *dev,
128 const struct ifinfomsg *ifm);
129extern const struct nla_policy ifla_policy[IFLA_MAX+1];
130
131#define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)
132
133#endif
1#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 *);
8typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
9typedef u16 (*rtnl_calcit_func)(struct sk_buff *, struct nlmsghdr *);
10
11int __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);
17
18static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
19{
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
26/**
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
42 * @get_xstats_size: Function to calculate required room for dumping device
43 * specific statistics
44 * @fill_xstats: Function to dump device specific statistics
45 * @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.
49 */
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
63 int (*newlink)(struct net *src_net,
64 struct net_device *dev,
65 struct nlattr *tb[],
66 struct nlattr *data[]);
67 int (*changelink)(struct net_device *dev,
68 struct nlattr *tb[],
69 struct nlattr *data[]);
70 void (*dellink)(struct net_device *dev,
71 struct list_head *head);
72
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);
80 unsigned int (*get_num_tx_queues)(void);
81 unsigned int (*get_num_rx_queues)(void);
82
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);
96};
97
98int __rtnl_link_register(struct rtnl_link_ops *ops);
99void __rtnl_link_unregister(struct rtnl_link_ops *ops);
100
101int rtnl_link_register(struct rtnl_link_ops *ops);
102void rtnl_link_unregister(struct rtnl_link_ops *ops);
103
104/**
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
112 * netlink attributes.
113 * @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.
117 */
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
126 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);
130};
131
132void __rtnl_af_unregister(struct rtnl_af_ops *ops);
133
134void rtnl_af_register(struct rtnl_af_ops *ops);
135void rtnl_af_unregister(struct rtnl_af_ops *ops);
136
137struct 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);
142
143int rtnl_nla_parse_ifla(struct nlattr **tb, const struct nlattr *head, int len);
144
145#define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)
146
147#endif