| 1 | #ifndef __NET_RTNETLINK_H
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| 2 | #define __NET_RTNETLINK_H
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| 3 |
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| 4 | #include <linux/rtnetlink.h>
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| 5 | #include <net/netlink.h>
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| 6 |
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| 7 | typedef int (*rtnl_doit_func)(struct sk_buff *, struct nlmsghdr *, void *);
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| 8 | typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
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| 9 | typedef u16 (*rtnl_calcit_func)(struct sk_buff *);
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| 10 |
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| 11 | extern int __rtnl_register(int protocol, int msgtype,
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| 12 | rtnl_doit_func, rtnl_dumpit_func,
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| 13 | rtnl_calcit_func);
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| 14 | extern void rtnl_register(int protocol, int msgtype,
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| 15 | rtnl_doit_func, rtnl_dumpit_func,
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| 16 | rtnl_calcit_func);
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| 17 | extern int rtnl_unregister(int protocol, int msgtype);
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| 18 | extern void rtnl_unregister_all(int protocol);
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| 19 |
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| 20 | static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
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| 21 | {
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| 22 | if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg))
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| 23 | return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family;
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| 24 | else
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| 25 | return AF_UNSPEC;
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| 26 | }
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| 27 |
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| 28 | |
| 29 | * struct rtnl_link_ops - rtnetlink link operations
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| 30 | *
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| 31 | * @list: Used internally
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| 32 | * @kind: Identifier
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| 33 | * @maxtype: Highest device specific netlink attribute number
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| 34 | * @policy: Netlink policy for device specific attribute validation
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| 35 | * @validate: Optional validation function for netlink/changelink parameters
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| 36 | * @priv_size: sizeof net_device private space
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| 37 | * @setup: net_device setup function
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| 38 | * @newlink: Function for configuring and registering a new device
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| 39 | * @changelink: Function for changing parameters of an existing device
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| 40 | * @dellink: Function to remove a device
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| 41 | * @get_size: Function to calculate required room for dumping device
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| 42 | * specific netlink attributes
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| 43 | * @fill_info: Function to dump device specific netlink attributes
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| 44 | * @get_xstats_size: Function to calculate required room for dumping devic
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| 45 | * specific statistics
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| 46 | * @fill_xstats: Function to dump device specific statistics
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| 47 |
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| 48 | struct rtnl_link_ops {
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| 49 | struct list_head list;
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| 50 |
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| 51 | const char *kind;
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| 52 |
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| 53 | size_t priv_size;
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| 54 | void (*setup)(struct net_device *dev);
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| 55 |
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| 56 | int maxtype;
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| 57 | const struct nla_policy *policy;
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| 58 | int (*validate)(struct nlattr *tb[],
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| 59 | struct nlattr *data[]);
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| 60 |
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| 61 | int (*newlink)(struct net *src_net,
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| 62 | struct net_device *dev,
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| 63 | struct nlattr *tb[],
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| 64 | struct nlattr *data[]);
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| 65 | int (*changelink)(struct net_device *dev,
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| 66 | struct nlattr *tb[],
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| 67 | struct nlattr *data[]);
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| 68 | void (*dellink)(struct net_device *dev,
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| 69 | struct list_head *head);
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| 70 |
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| 71 | size_t (*get_size)(const struct net_device *dev);
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| 72 | int (*fill_info)(struct sk_buff *skb,
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| 73 | const struct net_device *dev);
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| 74 |
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| 75 | size_t (*get_xstats_size)(const struct net_device *dev);
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| 76 | int (*fill_xstats)(struct sk_buff *skb,
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| 77 | const struct net_device *dev);
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| 78 | int (*get_tx_queues)(struct net *net, struct nlattr *tb[],
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| 79 | unsigned int *tx_queues,
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| 80 | unsigned int *real_tx_queues);
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| 81 | };
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| 82 |
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| 83 | extern int __rtnl_link_register(struct rtnl_link_ops *ops);
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| 84 | extern void __rtnl_link_unregister(struct rtnl_link_ops *ops);
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| 85 |
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| 86 | extern int rtnl_link_register(struct rtnl_link_ops *ops);
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| 87 | extern void rtnl_link_unregister(struct rtnl_link_ops *ops);
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| 88 |
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| 89 | |
| 90 | * struct rtnl_af_ops - rtnetlink address family operations
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| 91 | *
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| 92 | * @list: Used internally
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| 93 | * @family: Address family
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| 94 | * @fill_link_af: Function to fill IFLA_AF_SPEC with address family
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| 95 | * specific netlink attributes.
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| 96 | * @get_link_af_size: Function to calculate size of address family specific
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| 97 | * netlink attributes exlusive the container attribute.
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| 98 | * @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr
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| 99 | * for invalid configuration settings.
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| 100 | * @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify
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| 101 | * net_device accordingly.
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| 102 |
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| 103 | struct rtnl_af_ops {
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| 104 | struct list_head list;
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| 105 | int family;
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| 106 |
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| 107 | int (*fill_link_af)(struct sk_buff *skb,
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| 108 | const struct net_device *dev);
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| 109 | size_t (*get_link_af_size)(const struct net_device *dev);
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| 110 |
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| 111 | int (*validate_link_af)(const struct net_device *dev,
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| 112 | const struct nlattr *attr);
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| 113 | int (*set_link_af)(struct net_device *dev,
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| 114 | const struct nlattr *attr);
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| 115 | };
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| 116 |
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| 117 | extern int __rtnl_af_register(struct rtnl_af_ops *ops);
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| 118 | extern void __rtnl_af_unregister(struct rtnl_af_ops *ops);
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| 119 |
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| 120 | extern int rtnl_af_register(struct rtnl_af_ops *ops);
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| 121 | extern void rtnl_af_unregister(struct rtnl_af_ops *ops);
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| 122 |
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| 123 |
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| 124 | extern struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
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| 125 | extern struct net_device *rtnl_create_link(struct net *src_net, struct net *net,
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| 126 | char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[]);
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| 127 | extern int rtnl_configure_link(struct net_device *dev,
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| 128 | const struct ifinfomsg *ifm);
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| 129 | extern const struct nla_policy ifla_policy[IFLA_MAX+1];
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| 130 |
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| 131 | #define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)
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| 132 |
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| 133 | #endif
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