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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 | ||
c21ef3e3 DA |
7 | typedef int (*rtnl_doit_func)(struct sk_buff *, struct nlmsghdr *, |
8 | struct netlink_ext_ack *); | |
e2849863 | 9 | typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *); |
115c9b81 | 10 | typedef u16 (*rtnl_calcit_func)(struct sk_buff *, struct nlmsghdr *); |
e2849863 | 11 | |
efb48ccf JP |
12 | int __rtnl_register(int protocol, int msgtype, |
13 | rtnl_doit_func, rtnl_dumpit_func, rtnl_calcit_func); | |
14 | void rtnl_register(int protocol, int msgtype, | |
15 | rtnl_doit_func, rtnl_dumpit_func, rtnl_calcit_func); | |
16 | int rtnl_unregister(int protocol, int msgtype); | |
17 | void rtnl_unregister_all(int protocol); | |
e2849863 | 18 | |
3a6c2b41 | 19 | static inline int rtnl_msg_family(const struct nlmsghdr *nlh) |
c454673d TG |
20 | { |
21 | if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg)) | |
22 | return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family; | |
23 | else | |
24 | return AF_UNSPEC; | |
25 | } | |
26 | ||
38f7b870 PM |
27 | /** |
28 | * struct rtnl_link_ops - rtnetlink link operations | |
29 | * | |
30 | * @list: Used internally | |
31 | * @kind: Identifier | |
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 | |
9b17876f | 43 | * @get_xstats_size: Function to calculate required room for dumping device |
38f7b870 PM |
44 | * specific statistics |
45 | * @fill_xstats: Function to dump device specific statistics | |
d40156aa JP |
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. | |
d37512a2 | 50 | * @get_link_net: Function to get the i/o netns of the device |
97a47fac NA |
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 | |
38f7b870 PM |
54 | */ |
55 | struct rtnl_link_ops { | |
56 | struct list_head list; | |
57 | ||
58 | const char *kind; | |
59 | ||
60 | size_t priv_size; | |
61 | void (*setup)(struct net_device *dev); | |
62 | ||
63 | int maxtype; | |
64 | const struct nla_policy *policy; | |
65 | int (*validate)(struct nlattr *tb[], | |
a8b8a889 MS |
66 | struct nlattr *data[], |
67 | struct netlink_ext_ack *extack); | |
38f7b870 | 68 | |
81adee47 EB |
69 | int (*newlink)(struct net *src_net, |
70 | struct net_device *dev, | |
38f7b870 | 71 | struct nlattr *tb[], |
7a3f4a18 MS |
72 | struct nlattr *data[], |
73 | struct netlink_ext_ack *extack); | |
38f7b870 PM |
74 | int (*changelink)(struct net_device *dev, |
75 | struct nlattr *tb[], | |
ad744b22 MS |
76 | struct nlattr *data[], |
77 | struct netlink_ext_ack *extack); | |
23289a37 ED |
78 | void (*dellink)(struct net_device *dev, |
79 | struct list_head *head); | |
38f7b870 PM |
80 | |
81 | size_t (*get_size)(const struct net_device *dev); | |
82 | int (*fill_info)(struct sk_buff *skb, | |
83 | const struct net_device *dev); | |
84 | ||
85 | size_t (*get_xstats_size)(const struct net_device *dev); | |
86 | int (*fill_xstats)(struct sk_buff *skb, | |
87 | const struct net_device *dev); | |
d40156aa JP |
88 | unsigned int (*get_num_tx_queues)(void); |
89 | unsigned int (*get_num_rx_queues)(void); | |
ba7d49b1 JP |
90 | |
91 | int slave_maxtype; | |
92 | const struct nla_policy *slave_policy; | |
93 | int (*slave_validate)(struct nlattr *tb[], | |
d116ffc7 MS |
94 | struct nlattr *data[], |
95 | struct netlink_ext_ack *extack); | |
ba7d49b1 JP |
96 | int (*slave_changelink)(struct net_device *dev, |
97 | struct net_device *slave_dev, | |
98 | struct nlattr *tb[], | |
17dd0ec4 MS |
99 | struct nlattr *data[], |
100 | struct netlink_ext_ack *extack); | |
ba7d49b1 JP |
101 | size_t (*get_slave_size)(const struct net_device *dev, |
102 | const struct net_device *slave_dev); | |
103 | int (*fill_slave_info)(struct sk_buff *skb, | |
104 | const struct net_device *dev, | |
105 | const struct net_device *slave_dev); | |
d37512a2 | 106 | struct net *(*get_link_net)(const struct net_device *dev); |
80e73cc5 NA |
107 | size_t (*get_linkxstats_size)(const struct net_device *dev, |
108 | int attr); | |
97a47fac NA |
109 | int (*fill_linkxstats)(struct sk_buff *skb, |
110 | const struct net_device *dev, | |
80e73cc5 | 111 | int *prividx, int attr); |
38f7b870 PM |
112 | }; |
113 | ||
efb48ccf JP |
114 | int __rtnl_link_register(struct rtnl_link_ops *ops); |
115 | void __rtnl_link_unregister(struct rtnl_link_ops *ops); | |
38f7b870 | 116 | |
efb48ccf JP |
117 | int rtnl_link_register(struct rtnl_link_ops *ops); |
118 | void rtnl_link_unregister(struct rtnl_link_ops *ops); | |
38f7b870 | 119 | |
f8ff182c TG |
120 | /** |
121 | * struct rtnl_af_ops - rtnetlink address family operations | |
122 | * | |
123 | * @list: Used internally | |
124 | * @family: Address family | |
125 | * @fill_link_af: Function to fill IFLA_AF_SPEC with address family | |
126 | * specific netlink attributes. | |
127 | * @get_link_af_size: Function to calculate size of address family specific | |
9b17876f | 128 | * netlink attributes. |
cf7afbfe TG |
129 | * @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr |
130 | * for invalid configuration settings. | |
131 | * @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify | |
132 | * net_device accordingly. | |
f8ff182c TG |
133 | */ |
134 | struct rtnl_af_ops { | |
135 | struct list_head list; | |
136 | int family; | |
137 | ||
138 | int (*fill_link_af)(struct sk_buff *skb, | |
d5566fd7 SV |
139 | const struct net_device *dev, |
140 | u32 ext_filter_mask); | |
b1974ed0 AR |
141 | size_t (*get_link_af_size)(const struct net_device *dev, |
142 | u32 ext_filter_mask); | |
f8ff182c | 143 | |
cf7afbfe TG |
144 | int (*validate_link_af)(const struct net_device *dev, |
145 | const struct nlattr *attr); | |
146 | int (*set_link_af)(struct net_device *dev, | |
147 | const struct nlattr *attr); | |
aefb4d4a RS |
148 | |
149 | int (*fill_stats_af)(struct sk_buff *skb, | |
150 | const struct net_device *dev); | |
151 | size_t (*get_stats_af_size)(const struct net_device *dev); | |
f8ff182c TG |
152 | }; |
153 | ||
efb48ccf | 154 | void __rtnl_af_unregister(struct rtnl_af_ops *ops); |
f8ff182c | 155 | |
3678a9d8 | 156 | void rtnl_af_register(struct rtnl_af_ops *ops); |
efb48ccf | 157 | void rtnl_af_unregister(struct rtnl_af_ops *ops); |
f8ff182c | 158 | |
efb48ccf | 159 | struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]); |
78ebb0d0 | 160 | struct net_device *rtnl_create_link(struct net *net, const char *ifname, |
5517750f | 161 | unsigned char name_assign_type, |
efb48ccf JP |
162 | const struct rtnl_link_ops *ops, |
163 | struct nlattr *tb[]); | |
614732ea | 164 | int rtnl_delete_link(struct net_device *dev); |
efb48ccf | 165 | int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm); |
f8ff182c | 166 | |
fceb6435 JB |
167 | int rtnl_nla_parse_ifla(struct nlattr **tb, const struct nlattr *head, int len, |
168 | struct netlink_ext_ack *exterr); | |
e7199288 | 169 | |
38f7b870 PM |
170 | #define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind) |
171 | ||
e2849863 | 172 | #endif |