first commit

1 files changed, 84 insertions, 0 deletions

diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
new file mode 100644
index 000000000..f28544b2f
--- /dev/null
+++ b/include/linux/rtnetlink.h
@@ -0,0 +1,84 @@
+#ifndef __LINUX_RTNETLINK_H
+#define __LINUX_RTNETLINK_H
+
+
+#include <linux/mutex.h>
+#include <linux/netdevice.h>
+#include <uapi/linux/rtnetlink.h>
+
+extern int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, u32 group, int 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, 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);
+
+extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change);
+
+/* 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);
+#ifdef CONFIG_PROVE_LOCKING
+extern int lockdep_rtnl_is_held(void);
+#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
+ * both the smp_read_barrier_depends() and the ACCESS_ONCE(), because
+ * caller holds RTNL.
+ */
+#define rtnl_dereference(p)					\
+	rcu_dereference_protected(p, lockdep_rtnl_is_held())
+
+static inline struct netdev_queue *dev_ingress_queue(struct net_device *dev)
+{
+	return rtnl_dereference(dev->ingress_queue);
+}
+
+extern struct netdev_queue *dev_ingress_queue_create(struct net_device *dev);
+
+extern void rtnetlink_init(void);
+extern void __rtnl_unlock(void);
+
+#define ASSERT_RTNL() do { \
+	if (unlikely(!rtnl_is_locked())) { \
+		printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \
+		       __FILE__,  __LINE__); \
+		dump_stack(); \
+	} \
+} while(0)
+
+extern int ndo_dflt_fdb_dump(struct sk_buff *skb,
+			     struct netlink_callback *cb,
+			     struct net_device *dev,
+			     int idx);
+extern int ndo_dflt_fdb_add(struct ndmsg *ndm,
+			    struct nlattr *tb[],
+			    struct net_device *dev,
+			    const unsigned char *addr,
+			     u16 flags);
+extern int ndo_dflt_fdb_del(struct ndmsg *ndm,
+			    struct nlattr *tb[],
+			    struct net_device *dev,
+			    const unsigned char *addr);
+
+extern int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
+				   struct net_device *dev, u16 mode);
+#endif	/* __LINUX_RTNETLINK_H */