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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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C
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#include <linux/mutex.h>#include <linux/netdevice.h>#include <linux/wait.h>#include <linux/refcount.h>#include <uapi/linux/rtnetlink.h>
extern int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, u32 group, int echo);
static inline int rtnetlink_maybe_send(struct sk_buff *skb, struct net *net, u32 pid, u32 group, int echo){ return !skb ? 0 : rtnetlink_send(skb, net, pid, group, echo);}
extern int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid);extern void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group, const struct nlmsghdr *nlh, gfp_t flags);extern void rtnl_set_sk_err(struct net *net, u32 group, int error);extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics);extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id, long expires, u32 error);
void rtmsg_ifinfo(int type, struct net_device *dev, unsigned int change, gfp_t flags, u32 portid, const struct nlmsghdr *nlh);void rtmsg_ifinfo_newnet(int type, struct net_device *dev, unsigned int change, gfp_t flags, int *new_nsid, int new_ifindex);struct sk_buff *rtmsg_ifinfo_build_skb(int type, struct net_device *dev, unsigned change, u32 event, gfp_t flags, int *new_nsid, int new_ifindex, u32 portid, const struct nlmsghdr *nlh);void rtmsg_ifinfo_send(struct sk_buff *skb, struct net_device *dev, gfp_t flags, u32 portid, const struct nlmsghdr *nlh);
/* RTNL is used as a global lock for all changes to network configuration */extern void rtnl_lock(void);extern void rtnl_unlock(void);extern int rtnl_trylock(void);extern int rtnl_is_locked(void);extern int rtnl_lock_interruptible(void);extern int rtnl_lock_killable(void);extern bool refcount_dec_and_rtnl_lock(refcount_t *r);
extern wait_queue_head_t netdev_unregistering_wq;extern atomic_t dev_unreg_count;extern struct rw_semaphore pernet_ops_rwsem;extern struct rw_semaphore net_rwsem;
#define ASSERT_RTNL() \ WARN_ONCE(!rtnl_is_locked(), \ "RTNL: assertion failed at %s (%d)\n", __FILE__, __LINE__)
#ifdef CONFIG_PROVE_LOCKINGextern bool lockdep_rtnl_is_held(void);#elsestatic inline bool lockdep_rtnl_is_held(void){ return true;}#endif /* #ifdef CONFIG_PROVE_LOCKING */
/** * rcu_dereference_rtnl - rcu_dereference with debug checking * @p: The pointer to read, prior to dereferencing * * Do an rcu_dereference(p), but check caller either holds rcu_read_lock() * or RTNL. Note : Please prefer rtnl_dereference() or rcu_dereference() */#define rcu_dereference_rtnl(p) \ rcu_dereference_check(p, lockdep_rtnl_is_held())
/** * rtnl_dereference - fetch RCU pointer when updates are prevented by RTNL * @p: The pointer to read, prior to dereferencing * * Return: the value of the specified RCU-protected pointer, but omit * the READ_ONCE(), because caller holds RTNL. */#define rtnl_dereference(p) \ rcu_dereference_protected(p, lockdep_rtnl_is_held())
/** * rcu_replace_pointer_rtnl - replace an RCU pointer under rtnl_lock, returning * its old value * @rp: RCU pointer, whose value is returned * @p: regular pointer * * Perform a replacement under rtnl_lock, where @rp is an RCU-annotated * pointer. The old value of @rp is returned, and @rp is set to @p */#define rcu_replace_pointer_rtnl(rp, p) \ rcu_replace_pointer(rp, p, lockdep_rtnl_is_held())
#ifdef CONFIG_DEBUG_NET_SMALL_RTNLvoid __rtnl_net_lock(struct net *net);void __rtnl_net_unlock(struct net *net);void rtnl_net_lock(struct net *net);void rtnl_net_unlock(struct net *net);int rtnl_net_trylock(struct net *net);int rtnl_net_lock_killable(struct net *net);int rtnl_net_lock_cmp_fn(const struct lockdep_map *a, const struct lockdep_map *b);
bool rtnl_net_is_locked(struct net *net);
#define ASSERT_RTNL_NET(net) \ WARN_ONCE(!rtnl_net_is_locked(net), \ "RTNL_NET: assertion failed at %s (%d)\n", \ __FILE__, __LINE__)
bool lockdep_rtnl_net_is_held(struct net *net);
void rtnl_net_queue_work(struct net *net);void rtnl_net_flush_workqueue(void);void rtnl_net_work_func(struct work_struct *work);
#define rcu_dereference_rtnl_net(net, p) \ rcu_dereference_check(p, lockdep_rtnl_net_is_held(net))#define rtnl_net_dereference(net, p) \ rcu_dereference_protected(p, lockdep_rtnl_net_is_held(net))#define rcu_replace_pointer_rtnl_net(net, rp, p) \ rcu_replace_pointer(rp, p, lockdep_rtnl_net_is_held(net))#elsestatic inline void __rtnl_net_lock(struct net *net) {}static inline void __rtnl_net_unlock(struct net *net) {}
static inline void rtnl_net_lock(struct net *net){ rtnl_lock();}
static inline void rtnl_net_unlock(struct net *net){ rtnl_unlock();}
static inline int rtnl_net_trylock(struct net *net){ return rtnl_trylock();}
static inline int rtnl_net_lock_killable(struct net *net){ return rtnl_lock_killable();}
static inline void ASSERT_RTNL_NET(struct net *net){ ASSERT_RTNL();}
static inline void rtnl_net_flush_workqueue(void){}
#define rcu_dereference_rtnl_net(net, p) \ rcu_dereference_rtnl(p)#define rtnl_net_dereference(net, p) \ rtnl_dereference(p)#define rcu_replace_pointer_rtnl_net(net, rp, p) \ rcu_replace_pointer_rtnl(rp, p)#endif
static inline struct netdev_queue *dev_ingress_queue(struct net_device *dev){ return rtnl_dereference(dev->ingress_queue);}
static inline struct netdev_queue *dev_ingress_queue_rcu(struct net_device *dev){ return rcu_dereference(dev->ingress_queue);}
struct netdev_queue *dev_ingress_queue_create(struct net_device *dev);
#ifdef CONFIG_NET_INGRESSvoid net_inc_ingress_queue(void);void net_dec_ingress_queue(void);#endif
#ifdef CONFIG_NET_EGRESSvoid net_inc_egress_queue(void);void net_dec_egress_queue(void);bool netdev_xmit_skip_txqueue(bool skip);#elsestatic inline bool netdev_xmit_skip_txqueue(bool skip){ return false;}#endif
void rtnetlink_init(void);void __rtnl_unlock(void);void rtnl_kfree_skbs(struct sk_buff *head, struct sk_buff *tail);
/* Shared by rtnl_fdb_dump() and various ndo_fdb_dump() helpers. */struct ndo_fdb_dump_context { unsigned long ifindex; unsigned long fdb_idx;};
extern int ndo_dflt_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, struct net_device *dev, struct net_device *filter_dev, int *idx);extern int ndo_dflt_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid, u16 flags);extern int ndo_dflt_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid);
extern int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, u16 mode, u32 flags, u32 mask, int nlflags, u32 filter_mask, int (*vlan_fill)(struct sk_buff *skb, struct net_device *dev, u32 filter_mask));
extern void rtnl_offload_xstats_notify(struct net_device *dev);
static inline int rtnl_has_listeners(const struct net *net, u32 group){ struct sock *rtnl = net->rtnl;
return netlink_has_listeners(rtnl, group);}
/** * rtnl_notify_needed - check if notification is needed * @net: Pointer to the net namespace * @nlflags: netlink ingress message flags * @group: rtnl group * * Based on the ingress message flags and rtnl group, returns true * if a notification is needed, false otherwise. */static inline boolrtnl_notify_needed(const struct net *net, u16 nlflags, u32 group){ return (nlflags & NLM_F_ECHO) || rtnl_has_listeners(net, group);}
void netif_set_operstate(struct net_device *dev, int newstate);
#endif /* __LINUX_RTNETLINK_H */