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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 *); | |
9 | ||
10 | extern int __rtnl_register(int protocol, int msgtype, | |
11 | rtnl_doit_func, rtnl_dumpit_func); | |
12 | extern void rtnl_register(int protocol, int msgtype, | |
13 | rtnl_doit_func, rtnl_dumpit_func); | |
14 | extern int rtnl_unregister(int protocol, int msgtype); | |
15 | extern void rtnl_unregister_all(int protocol); | |
e2849863 | 16 | |
3a6c2b41 | 17 | static inline int rtnl_msg_family(const struct nlmsghdr *nlh) |
c454673d TG |
18 | { |
19 | if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg)) | |
20 | return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family; | |
21 | else | |
22 | return AF_UNSPEC; | |
23 | } | |
24 | ||
38f7b870 PM |
25 | /** |
26 | * struct rtnl_link_ops - rtnetlink link operations | |
27 | * | |
28 | * @list: Used internally | |
29 | * @kind: Identifier | |
30 | * @maxtype: Highest device specific netlink attribute number | |
31 | * @policy: Netlink policy for device specific attribute validation | |
32 | * @validate: Optional validation function for netlink/changelink parameters | |
33 | * @priv_size: sizeof net_device private space | |
34 | * @setup: net_device setup function | |
35 | * @newlink: Function for configuring and registering a new device | |
36 | * @changelink: Function for changing parameters of an existing device | |
37 | * @dellink: Function to remove a device | |
38 | * @get_size: Function to calculate required room for dumping device | |
39 | * specific netlink attributes | |
40 | * @fill_info: Function to dump device specific netlink attributes | |
41 | * @get_xstats_size: Function to calculate required room for dumping devic | |
42 | * specific statistics | |
43 | * @fill_xstats: Function to dump device specific statistics | |
44 | */ | |
45 | struct rtnl_link_ops { | |
46 | struct list_head list; | |
47 | ||
48 | const char *kind; | |
49 | ||
50 | size_t priv_size; | |
51 | void (*setup)(struct net_device *dev); | |
52 | ||
53 | int maxtype; | |
54 | const struct nla_policy *policy; | |
55 | int (*validate)(struct nlattr *tb[], | |
56 | struct nlattr *data[]); | |
57 | ||
81adee47 EB |
58 | int (*newlink)(struct net *src_net, |
59 | struct net_device *dev, | |
38f7b870 PM |
60 | struct nlattr *tb[], |
61 | struct nlattr *data[]); | |
62 | int (*changelink)(struct net_device *dev, | |
63 | struct nlattr *tb[], | |
64 | struct nlattr *data[]); | |
23289a37 ED |
65 | void (*dellink)(struct net_device *dev, |
66 | struct list_head *head); | |
38f7b870 PM |
67 | |
68 | size_t (*get_size)(const struct net_device *dev); | |
69 | int (*fill_info)(struct sk_buff *skb, | |
70 | const struct net_device *dev); | |
71 | ||
72 | size_t (*get_xstats_size)(const struct net_device *dev); | |
73 | int (*fill_xstats)(struct sk_buff *skb, | |
74 | const struct net_device *dev); | |
2e59af3d ED |
75 | int (*get_tx_queues)(struct net *net, struct nlattr *tb[], |
76 | unsigned int *tx_queues, | |
77 | unsigned int *real_tx_queues); | |
38f7b870 PM |
78 | }; |
79 | ||
80 | extern int __rtnl_link_register(struct rtnl_link_ops *ops); | |
81 | extern void __rtnl_link_unregister(struct rtnl_link_ops *ops); | |
82 | ||
83 | extern int rtnl_link_register(struct rtnl_link_ops *ops); | |
84 | extern void rtnl_link_unregister(struct rtnl_link_ops *ops); | |
85 | ||
f8ff182c TG |
86 | /** |
87 | * struct rtnl_af_ops - rtnetlink address family operations | |
88 | * | |
89 | * @list: Used internally | |
90 | * @family: Address family | |
91 | * @fill_link_af: Function to fill IFLA_AF_SPEC with address family | |
92 | * specific netlink attributes. | |
93 | * @get_link_af_size: Function to calculate size of address family specific | |
94 | * netlink attributes exlusive the container attribute. | |
cf7afbfe TG |
95 | * @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr |
96 | * for invalid configuration settings. | |
97 | * @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify | |
98 | * net_device accordingly. | |
f8ff182c TG |
99 | */ |
100 | struct rtnl_af_ops { | |
101 | struct list_head list; | |
102 | int family; | |
103 | ||
104 | int (*fill_link_af)(struct sk_buff *skb, | |
105 | const struct net_device *dev); | |
106 | size_t (*get_link_af_size)(const struct net_device *dev); | |
107 | ||
cf7afbfe TG |
108 | int (*validate_link_af)(const struct net_device *dev, |
109 | const struct nlattr *attr); | |
110 | int (*set_link_af)(struct net_device *dev, | |
111 | const struct nlattr *attr); | |
f8ff182c TG |
112 | }; |
113 | ||
114 | extern int __rtnl_af_register(struct rtnl_af_ops *ops); | |
115 | extern void __rtnl_af_unregister(struct rtnl_af_ops *ops); | |
116 | ||
117 | extern int rtnl_af_register(struct rtnl_af_ops *ops); | |
118 | extern void rtnl_af_unregister(struct rtnl_af_ops *ops); | |
119 | ||
120 | ||
81adee47 EB |
121 | extern struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]); |
122 | extern struct net_device *rtnl_create_link(struct net *src_net, struct net *net, | |
123 | char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[]); | |
3729d502 PM |
124 | extern int rtnl_configure_link(struct net_device *dev, |
125 | const struct ifinfomsg *ifm); | |
e7199288 PE |
126 | extern const struct nla_policy ifla_policy[IFLA_MAX+1]; |
127 | ||
38f7b870 PM |
128 | #define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind) |
129 | ||
e2849863 | 130 | #endif |