Contributors: 29
Author Tokens Token Proportion Commits Commit Proportion
Linus Torvalds (pre-git) 82 13.92% 6 11.32%
Thomas Graf 70 11.88% 3 5.66%
John Fastabend 68 11.54% 4 7.55%
Eric Dumazet 61 10.36% 4 7.55%
Vlad Yasevich 60 10.19% 2 3.77%
Mahesh Bandewar 37 6.28% 1 1.89%
Nicolas Dichtel 36 6.11% 3 5.66%
Daniel Borkmann 33 5.60% 2 3.77%
Scott Feldman 29 4.92% 2 3.77%
Denis V. Lunev 20 3.40% 1 1.89%
Kirill Tkhai 15 2.55% 4 7.55%
Paul E. McKenney 13 2.21% 2 3.77%
Stephen Hemminger 11 1.87% 1 1.89%
Cong Wang 9 1.53% 1 1.89%
Christoph Hellwig 6 1.02% 1 1.89%
Patrick McHardy 6 1.02% 1 1.89%
Jiri Pirko 6 1.02% 1 1.89%
Jamal Hadi Salim 5 0.85% 1 1.89%
Alexei Starovoitov 3 0.51% 1 1.89%
Yaowei Bai 3 0.51% 1 1.89%
David S. Miller 3 0.51% 2 3.77%
David Howells 3 0.51% 1 1.89%
Leon Romanovsky 2 0.34% 1 1.89%
Andy Whitcroft 2 0.34% 1 1.89%
Pablo Neira Ayuso 2 0.34% 2 3.77%
Alexey Kuznetsov 1 0.17% 1 1.89%
Michal Hocko 1 0.17% 1 1.89%
Greg Kroah-Hartman 1 0.17% 1 1.89%
Roopa Prabhu 1 0.17% 1 1.89%
Total 589 53


/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_RTNETLINK_H
#define __LINUX_RTNETLINK_H


#include <linux/mutex.h>
#include <linux/netdevice.h>
#include <linux/wait.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);

void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change, gfp_t flags);
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);
void rtmsg_ifinfo_send(struct sk_buff *skb, struct net_device *dev,
		       gfp_t flags);


/* 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_killable(void);

extern wait_queue_head_t netdev_unregistering_wq;
extern struct rw_semaphore pernet_ops_rwsem;
extern struct rw_semaphore net_rwsem;

#ifdef CONFIG_PROVE_LOCKING
extern bool lockdep_rtnl_is_held(void);
#else
static 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())

/**
 * rcu_dereference_bh_rtnl - rcu_dereference_bh with debug checking
 * @p: The pointer to read, prior to dereference
 *
 * Do an rcu_dereference_bh(p), but check caller either holds rcu_read_lock_bh()
 * or RTNL. Note : Please prefer rtnl_dereference() or rcu_dereference_bh()
 */
#define rcu_dereference_bh_rtnl(p)				\
	rcu_dereference_bh_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())

static inline struct netdev_queue *dev_ingress_queue(struct net_device *dev)
{
	return rtnl_dereference(dev->ingress_queue);
}

struct netdev_queue *dev_ingress_queue_create(struct net_device *dev);

#ifdef CONFIG_NET_INGRESS
void net_inc_ingress_queue(void);
void net_dec_ingress_queue(void);
#endif

#ifdef CONFIG_NET_EGRESS
void net_inc_egress_queue(void);
void net_dec_egress_queue(void);
#endif

void rtnetlink_init(void);
void __rtnl_unlock(void);
void rtnl_kfree_skbs(struct sk_buff *head, struct sk_buff *tail);

#define ASSERT_RTNL() \
	WARN_ONCE(!rtnl_is_locked(), \
		  "RTNL: assertion failed at %s (%d)\n", __FILE__,  __LINE__)

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));
#endif	/* __LINUX_RTNETLINK_H */