| 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 *);
|
| 8 | typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
|
| 9 | typedef u16 (*rtnl_calcit_func)(struct sk_buff *, struct nlmsghdr *);
|
| 10 |
|
| 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);
|
| 17 |
|
| 18 | static 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 |
|
| 50 | struct 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 |
|
| 84 | int __rtnl_link_register(struct rtnl_link_ops *ops);
|
| 85 | void __rtnl_link_unregister(struct rtnl_link_ops *ops);
|
| 86 |
|
| 87 | int rtnl_link_register(struct rtnl_link_ops *ops);
|
| 88 | void rtnl_link_unregister(struct rtnl_link_ops *ops);
|
| 89 |
|
| 90 | |
| 91 | * struct rtnl_af_ops - rtnetlink address family operations
|
| 92 | *
|
| 93 | * @list: Used internally
|
| 94 | * @family: Address family
|
| 95 | * @fill_link_af: Function to fill IFLA_AF_SPEC with address family
|
| 96 | * specific netlink attributes.
|
| 97 | * @get_link_af_size: Function to calculate size of address family specific
|
| 98 | * netlink attributes.
|
| 99 | * @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr
|
| 100 | * for invalid configuration settings.
|
| 101 | * @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify
|
| 102 | * net_device accordingly.
|
| 103 |
|
| 104 | struct rtnl_af_ops {
|
| 105 | struct list_head list;
|
| 106 | int family;
|
| 107 |
|
| 108 | int (*fill_link_af)(struct sk_buff *skb,
|
| 109 | const struct net_device *dev);
|
| 110 | size_t (*get_link_af_size)(const struct net_device *dev);
|
| 111 |
|
| 112 | int (*validate_link_af)(const struct net_device *dev,
|
| 113 | const struct nlattr *attr);
|
| 114 | int (*set_link_af)(struct net_device *dev,
|
| 115 | const struct nlattr *attr);
|
| 116 | };
|
| 117 |
|
| 118 | int __rtnl_af_register(struct rtnl_af_ops *ops);
|
| 119 | void __rtnl_af_unregister(struct rtnl_af_ops *ops);
|
| 120 |
|
| 121 | int rtnl_af_register(struct rtnl_af_ops *ops);
|
| 122 | void rtnl_af_unregister(struct rtnl_af_ops *ops);
|
| 123 |
|
| 124 | struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
|
| 125 | struct net_device *rtnl_create_link(struct net *net, char *ifname,
|
| 126 | const struct rtnl_link_ops *ops,
|
| 127 | struct nlattr *tb[]);
|
| 128 | int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm);
|
| 129 |
|
| 130 | extern const struct nla_policy ifla_policy[IFLA_MAX+1];
|
| 131 |
|
| 132 | #define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)
|
| 133 |
|
| 134 | #endif
|