efb48ccfcd
There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
135 lines
4.6 KiB
C
135 lines
4.6 KiB
C
#ifndef __NET_RTNETLINK_H
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#define __NET_RTNETLINK_H
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#include <linux/rtnetlink.h>
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#include <net/netlink.h>
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typedef int (*rtnl_doit_func)(struct sk_buff *, struct nlmsghdr *);
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typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
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typedef u16 (*rtnl_calcit_func)(struct sk_buff *, struct nlmsghdr *);
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int __rtnl_register(int protocol, int msgtype,
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rtnl_doit_func, rtnl_dumpit_func, rtnl_calcit_func);
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void rtnl_register(int protocol, int msgtype,
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rtnl_doit_func, rtnl_dumpit_func, rtnl_calcit_func);
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int rtnl_unregister(int protocol, int msgtype);
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void rtnl_unregister_all(int protocol);
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static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
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{
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if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg))
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return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family;
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else
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return AF_UNSPEC;
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}
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/**
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* struct rtnl_link_ops - rtnetlink link operations
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*
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* @list: Used internally
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* @kind: Identifier
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* @maxtype: Highest device specific netlink attribute number
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* @policy: Netlink policy for device specific attribute validation
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* @validate: Optional validation function for netlink/changelink parameters
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* @priv_size: sizeof net_device private space
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* @setup: net_device setup function
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* @newlink: Function for configuring and registering a new device
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* @changelink: Function for changing parameters of an existing device
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* @dellink: Function to remove a device
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* @get_size: Function to calculate required room for dumping device
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* specific netlink attributes
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* @fill_info: Function to dump device specific netlink attributes
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* @get_xstats_size: Function to calculate required room for dumping device
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* specific statistics
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* @fill_xstats: Function to dump device specific statistics
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* @get_num_tx_queues: Function to determine number of transmit queues
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* to create when creating a new device.
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* @get_num_rx_queues: Function to determine number of receive queues
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* to create when creating a new device.
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*/
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struct rtnl_link_ops {
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struct list_head list;
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const char *kind;
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size_t priv_size;
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void (*setup)(struct net_device *dev);
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int maxtype;
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const struct nla_policy *policy;
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int (*validate)(struct nlattr *tb[],
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struct nlattr *data[]);
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int (*newlink)(struct net *src_net,
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struct net_device *dev,
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struct nlattr *tb[],
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struct nlattr *data[]);
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int (*changelink)(struct net_device *dev,
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struct nlattr *tb[],
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struct nlattr *data[]);
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void (*dellink)(struct net_device *dev,
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struct list_head *head);
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size_t (*get_size)(const struct net_device *dev);
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int (*fill_info)(struct sk_buff *skb,
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const struct net_device *dev);
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size_t (*get_xstats_size)(const struct net_device *dev);
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int (*fill_xstats)(struct sk_buff *skb,
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const struct net_device *dev);
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unsigned int (*get_num_tx_queues)(void);
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unsigned int (*get_num_rx_queues)(void);
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};
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int __rtnl_link_register(struct rtnl_link_ops *ops);
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void __rtnl_link_unregister(struct rtnl_link_ops *ops);
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int rtnl_link_register(struct rtnl_link_ops *ops);
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void rtnl_link_unregister(struct rtnl_link_ops *ops);
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/**
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* struct rtnl_af_ops - rtnetlink address family operations
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*
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* @list: Used internally
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* @family: Address family
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* @fill_link_af: Function to fill IFLA_AF_SPEC with address family
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* specific netlink attributes.
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* @get_link_af_size: Function to calculate size of address family specific
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* netlink attributes.
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* @validate_link_af: Validate a IFLA_AF_SPEC attribute, must check attr
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* for invalid configuration settings.
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* @set_link_af: Function to parse a IFLA_AF_SPEC attribute and modify
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* net_device accordingly.
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*/
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struct rtnl_af_ops {
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struct list_head list;
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int family;
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int (*fill_link_af)(struct sk_buff *skb,
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const struct net_device *dev);
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size_t (*get_link_af_size)(const struct net_device *dev);
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int (*validate_link_af)(const struct net_device *dev,
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const struct nlattr *attr);
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int (*set_link_af)(struct net_device *dev,
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const struct nlattr *attr);
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};
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int __rtnl_af_register(struct rtnl_af_ops *ops);
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void __rtnl_af_unregister(struct rtnl_af_ops *ops);
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int rtnl_af_register(struct rtnl_af_ops *ops);
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void rtnl_af_unregister(struct rtnl_af_ops *ops);
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struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
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struct net_device *rtnl_create_link(struct net *net, char *ifname,
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const struct rtnl_link_ops *ops,
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struct nlattr *tb[]);
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int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm);
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extern const struct nla_policy ifla_policy[IFLA_MAX+1];
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#define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)
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#endif
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