projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef __LINUX_RTNETLINK_H |
| 2 | #define __LINUX_RTNETLINK_H | |
| 3 | ||
| 1da177e4 | 4 | |
| 6756ae4b | 5 | #include <linux/mutex.h> |
| 3b42a96d | 6 | #include <linux/netdevice.h> |
| 607ca46e | 7 | #include <uapi/linux/rtnetlink.h> |
| 1da177e4 | 8 | |
| 97c53cac DL |
9 | extern int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, u32 group, int echo); |
| 10 | extern int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid); | |
| 1ce85fe4 PNA |
11 | extern void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, |
| 12 | u32 group, struct nlmsghdr *nlh, gfp_t flags); | |
| 97c53cac | 13 | extern void rtnl_set_sk_err(struct net *net, u32 group, int error); |
| 1da177e4 | 14 | extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics); |
| e3703b3d | 15 | extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, |
| 87a50699 | 16 | u32 id, long expires, u32 error); |
| 1da177e4 | 17 | |
| 7f294054 | 18 | void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change, gfp_t flags); |
| 1da177e4 | 19 | |
| 6756ae4b | 20 | /* RTNL is used as a global lock for all changes to network configuration */ |
| 1da177e4 | 21 | extern void rtnl_lock(void); |
| 1da177e4 | 22 | extern void rtnl_unlock(void); |
| 6756ae4b | 23 | extern int rtnl_trylock(void); |
| c9c1014b | 24 | extern int rtnl_is_locked(void); |
| a898def2 PM |
25 | #ifdef CONFIG_PROVE_LOCKING |
| 26 | extern int lockdep_rtnl_is_held(void); | |
| 85328240 JF |
27 | #else |
| 28 | static inline int lockdep_rtnl_is_held(void) | |
| 29 | { | |
| 30 | return 1; | |
| 31 | } | |
| a898def2 | 32 | #endif /* #ifdef CONFIG_PROVE_LOCKING */ |
| 6756ae4b | 33 | |
| a6e0fc85 ED |
34 | /** |
| 35 | * rcu_dereference_rtnl - rcu_dereference with debug checking | |
| 36 | * @p: The pointer to read, prior to dereferencing | |
| 37 | * | |
| 38 | * Do an rcu_dereference(p), but check caller either holds rcu_read_lock() | |
| 29fa060e | 39 | * or RTNL. Note : Please prefer rtnl_dereference() or rcu_dereference() |
| a6e0fc85 ED |
40 | */ |
| 41 | #define rcu_dereference_rtnl(p) \ | |
| d8bf4ca9 | 42 | rcu_dereference_check(p, lockdep_rtnl_is_held()) |
| a6e0fc85 | 43 | |
| 7dff59ef | 44 | /** |
| 29fa060e | 45 | * rtnl_dereference - fetch RCU pointer when updates are prevented by RTNL |
| 7dff59ef ED |
46 | * @p: The pointer to read, prior to dereferencing |
| 47 | * | |
| 29fa060e DM |
48 | * Return the value of the specified RCU-protected pointer, but omit |
| 49 | * both the smp_read_barrier_depends() and the ACCESS_ONCE(), because | |
| 50 | * caller holds RTNL. | |
| 7dff59ef ED |
51 | */ |
| 52 | #define rtnl_dereference(p) \ | |
| 29fa060e | 53 | rcu_dereference_protected(p, lockdep_rtnl_is_held()) |
| 7dff59ef | 54 | |
| 24824a09 ED |
55 | static inline struct netdev_queue *dev_ingress_queue(struct net_device *dev) |
| 56 | { | |
| 57 | return rtnl_dereference(dev->ingress_queue); | |
| 58 | } | |
| 59 | ||
| 60 | extern struct netdev_queue *dev_ingress_queue_create(struct net_device *dev); | |
| 61 | ||
| 1da177e4 | 62 | extern void rtnetlink_init(void); |
| 6756ae4b | 63 | extern void __rtnl_unlock(void); |
| 1da177e4 LT |
64 | |
| 65 | #define ASSERT_RTNL() do { \ | |
| c9c1014b | 66 | if (unlikely(!rtnl_is_locked())) { \ |
| 1da177e4 LT |
67 | printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \ |
| 68 | __FILE__, __LINE__); \ | |
| 69 | dump_stack(); \ | |
| 70 | } \ | |
| 71 | } while(0) | |
| 72 | ||
| 77162022 JF |
73 | extern int ndo_dflt_fdb_dump(struct sk_buff *skb, |
| 74 | struct netlink_callback *cb, | |
| 75 | struct net_device *dev, | |
| 76 | int idx); | |
| 090096bf VY |
77 | extern int ndo_dflt_fdb_add(struct ndmsg *ndm, |
| 78 | struct nlattr *tb[], | |
| 79 | struct net_device *dev, | |
| 80 | const unsigned char *addr, | |
| 81 | u16 flags); | |
| 82 | extern int ndo_dflt_fdb_del(struct ndmsg *ndm, | |
| 83 | struct nlattr *tb[], | |
| 84 | struct net_device *dev, | |
| 85 | const unsigned char *addr); | |
| 815cccbf JF |
86 | |
| 87 | extern int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, | |
| 88 | struct net_device *dev, u16 mode); | |
| 1da177e4 | 89 | #endif /* __LINUX_RTNETLINK_H */ |