2005-04-17 06:20:36 +08:00
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#ifndef __LINUX_RTNETLINK_H
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#define __LINUX_RTNETLINK_H
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2006-03-21 14:23:58 +08:00
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#include <linux/mutex.h>
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2010-11-15 14:01:59 +08:00
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#include <linux/netdevice.h>
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2012-10-13 17:46:48 +08:00
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#include <uapi/linux/rtnetlink.h>
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2005-04-17 06:20:36 +08:00
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2007-11-20 14:26:51 +08:00
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extern int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, u32 group, int echo);
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extern int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid);
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2009-02-25 15:18:28 +08:00
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extern void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid,
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u32 group, struct nlmsghdr *nlh, gfp_t flags);
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2007-11-20 14:26:51 +08:00
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extern void rtnl_set_sk_err(struct net *net, u32 group, int error);
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2005-04-17 06:20:36 +08:00
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extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics);
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2006-11-28 01:27:07 +08:00
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extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst,
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2012-07-10 20:06:14 +08:00
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u32 id, long expires, u32 error);
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2005-04-17 06:20:36 +08:00
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extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change);
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2006-03-21 14:23:58 +08:00
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/* RTNL is used as a global lock for all changes to network configuration */
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2005-04-17 06:20:36 +08:00
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extern void rtnl_lock(void);
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extern void rtnl_unlock(void);
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2006-03-21 14:23:58 +08:00
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extern int rtnl_trylock(void);
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2008-04-24 13:10:48 +08:00
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extern int rtnl_is_locked(void);
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2010-02-23 09:04:49 +08:00
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#ifdef CONFIG_PROVE_LOCKING
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extern int lockdep_rtnl_is_held(void);
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#endif /* #ifdef CONFIG_PROVE_LOCKING */
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2006-03-21 14:23:58 +08:00
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2010-09-09 05:15:32 +08:00
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/**
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* rcu_dereference_rtnl - rcu_dereference with debug checking
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* @p: The pointer to read, prior to dereferencing
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*
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* Do an rcu_dereference(p), but check caller either holds rcu_read_lock()
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2010-10-05 15:29:48 +08:00
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* or RTNL. Note : Please prefer rtnl_dereference() or rcu_dereference()
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2010-09-09 05:15:32 +08:00
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*/
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#define rcu_dereference_rtnl(p) \
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2011-07-08 20:39:41 +08:00
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rcu_dereference_check(p, lockdep_rtnl_is_held())
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2010-09-09 05:15:32 +08:00
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2010-09-15 19:07:15 +08:00
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/**
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2010-10-05 15:29:48 +08:00
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* rtnl_dereference - fetch RCU pointer when updates are prevented by RTNL
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2010-09-15 19:07:15 +08:00
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* @p: The pointer to read, prior to dereferencing
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*
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2010-10-05 15:29:48 +08:00
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* Return the value of the specified RCU-protected pointer, but omit
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* both the smp_read_barrier_depends() and the ACCESS_ONCE(), because
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* caller holds RTNL.
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2010-09-15 19:07:15 +08:00
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*/
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#define rtnl_dereference(p) \
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rcu_dereference_protected(p, lockdep_rtnl_is_held())
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2010-09-15 19:07:15 +08:00
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2010-10-02 14:11:55 +08:00
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static inline struct netdev_queue *dev_ingress_queue(struct net_device *dev)
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{
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return rtnl_dereference(dev->ingress_queue);
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}
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extern struct netdev_queue *dev_ingress_queue_create(struct net_device *dev);
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2005-04-17 06:20:36 +08:00
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extern void rtnetlink_init(void);
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2006-03-21 14:23:58 +08:00
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extern void __rtnl_unlock(void);
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2005-04-17 06:20:36 +08:00
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#define ASSERT_RTNL() do { \
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2008-04-24 13:10:48 +08:00
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if (unlikely(!rtnl_is_locked())) { \
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2005-04-17 06:20:36 +08:00
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printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \
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__FILE__, __LINE__); \
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dump_stack(); \
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} \
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} while(0)
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2012-04-15 14:43:56 +08:00
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extern int ndo_dflt_fdb_dump(struct sk_buff *skb,
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struct netlink_callback *cb,
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struct net_device *dev,
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int idx);
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2013-03-06 23:39:42 +08:00
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extern int ndo_dflt_fdb_add(struct ndmsg *ndm,
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struct nlattr *tb[],
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struct net_device *dev,
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const unsigned char *addr,
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u16 flags);
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extern int ndo_dflt_fdb_del(struct ndmsg *ndm,
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struct nlattr *tb[],
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struct net_device *dev,
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const unsigned char *addr);
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2012-10-24 16:13:09 +08:00
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extern int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
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struct net_device *dev, u16 mode);
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2005-04-17 06:20:36 +08:00
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#endif /* __LINUX_RTNETLINK_H */
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