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e2849863 TG |
1 | #ifndef __NET_RTNETLINK_H |
2 | #define __NET_RTNETLINK_H | |
3 | ||
4 | #include <linux/rtnetlink.h> | |
5 | #include <net/netlink.h> | |
6 | ||
7 | typedef int (*rtnl_doit_func)(struct sk_buff *, struct nlmsghdr *, void *); | |
8 | typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *); | |
115c9b81 | 9 | typedef u16 (*rtnl_calcit_func)(struct sk_buff *, struct nlmsghdr *); |
e2849863 TG |
10 | |
11 | extern int __rtnl_register(int protocol, int msgtype, | |
c7ac8679 GR |
12 | rtnl_doit_func, rtnl_dumpit_func, |
13 | rtnl_calcit_func); | |
e2849863 | 14 | extern void rtnl_register(int protocol, int msgtype, |
c7ac8679 GR |
15 | rtnl_doit_func, rtnl_dumpit_func, |
16 | rtnl_calcit_func); | |
e2849863 TG |
17 | extern int rtnl_unregister(int protocol, int msgtype); |
18 | extern void rtnl_unregister_all(int protocol); | |
e2849863 | 19 | |
3a6c2b41 | 20 | static inline int rtnl_msg_family(const struct nlmsghdr *nlh) |
c454673d TG |
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 | ||
38f7b870 PM |
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 | |
9b17876f | 44 | * @get_xstats_size: Function to calculate required room for dumping device |
38f7b870 PM |
45 | * specific statistics |
46 | * @fill_xstats: Function to dump device specific statistics | |
d40156aa JP |
47 | * @get_num_tx_queues: Function to determine number of transmit queues |
48 | * to create when creating a new device. | |
49 | * @get_num_rx_queues: Function to determine number of receive queues | |
50 | * to create when creating a new device. | |
38f7b870 PM |
51 | */ |
52 | struct rtnl_link_ops { | |
53 | struct list_head list; | |
54 | ||
55 | const char *kind; | |
56 | ||
57 | size_t priv_size; | |
58 | void (*setup)(struct net_device *dev); | |
59 | ||
60 | int maxtype; | |
61 | const struct nla_policy *policy; | |
62 | int (*validate)(struct nlattr *tb[], | |
63 | struct nlattr *data[]); | |
64 | ||
81adee47 EB |
65 | int (*newlink)(struct net *src_net, |
66 | struct net_device *dev, | |
38f7b870 PM |
67 | struct nlattr *tb[], |
68 | struct nlattr *data[]); | |
69 | int (*changelink)(struct net_device *dev, | |
70 | struct nlattr *tb[], | |
71 | struct nlattr *data[]); | |
23289a37 ED |
72 | void (*dellink)(struct net_device *dev, |
73 | struct list_head *head); | |
38f7b870 PM |
74 | |
75 | size_t (*get_size)(const struct net_device *dev); | |
76 | int (*fill_info)(struct sk_buff *skb, | |
77 | const struct net_device *dev); | |
78 | ||
79 | size_t (*get_xstats_size)(const struct net_device *dev); | |
80 | int (*fill_xstats)(struct sk_buff *skb, | |
81 | const struct net_device *dev); | |
d40156aa JP |
82 | unsigned int (*get_num_tx_queues)(void); |
83 | unsigned int (*get_num_rx_queues)(void); | |
38f7b870 PM |
84 | }; |
85 | ||
86 | extern int __rtnl_link_register(struct rtnl_link_ops *ops); | |
87 | extern void __rtnl_link_unregister(struct rtnl_link_ops *ops); | |
88 | ||
89 | extern int rtnl_link_register(struct rtnl_link_ops *ops); | |
90 | extern void rtnl_link_unregister(struct rtnl_link_ops *ops); | |
91 | ||
f8ff182c TG |
92 | /** |
93 | * struct rtnl_af_ops - rtnetlink address family operations | |
94 | * | |
95 | * @list: Used internally | |
96 | * @family: Address family | |
97 | * @fill_link_af: Function to fill IFLA_AF_SPEC with address family | |
98 | * specific netlink attributes. | |
99 | * @get_link_af_size: Function to calculate size of address family specific | |
9b17876f | 100 | * netlink attributes. |
cf7afbfe TG |
101 | * @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr |
102 | * for invalid configuration settings. | |
103 | * @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify | |
104 | * net_device accordingly. | |
f8ff182c TG |
105 | */ |
106 | struct rtnl_af_ops { | |
107 | struct list_head list; | |
108 | int family; | |
109 | ||
110 | int (*fill_link_af)(struct sk_buff *skb, | |
111 | const struct net_device *dev); | |
112 | size_t (*get_link_af_size)(const struct net_device *dev); | |
113 | ||
cf7afbfe TG |
114 | int (*validate_link_af)(const struct net_device *dev, |
115 | const struct nlattr *attr); | |
116 | int (*set_link_af)(struct net_device *dev, | |
117 | const struct nlattr *attr); | |
f8ff182c TG |
118 | }; |
119 | ||
120 | extern int __rtnl_af_register(struct rtnl_af_ops *ops); | |
121 | extern void __rtnl_af_unregister(struct rtnl_af_ops *ops); | |
122 | ||
123 | extern int rtnl_af_register(struct rtnl_af_ops *ops); | |
124 | extern void rtnl_af_unregister(struct rtnl_af_ops *ops); | |
125 | ||
126 | ||
81adee47 | 127 | extern struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]); |
c0713563 | 128 | extern struct net_device *rtnl_create_link(struct net *net, |
81adee47 | 129 | char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[]); |
3729d502 PM |
130 | extern int rtnl_configure_link(struct net_device *dev, |
131 | const struct ifinfomsg *ifm); | |
e7199288 PE |
132 | extern const struct nla_policy ifla_policy[IFLA_MAX+1]; |
133 | ||
38f7b870 PM |
134 | #define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind) |
135 | ||
e2849863 | 136 | #endif |