Contributors: 22
Author Tokens Token Proportion Commits Commit Proportion
Patrick McHardy 53 16.88% 8 17.78%
Johannes Berg 34 10.83% 4 8.89%
Andrey Vagin 33 10.51% 1 2.22%
Linus Torvalds (pre-git) 32 10.19% 5 11.11%
Herbert Xu 25 7.96% 3 6.67%
Richard Guy Briggs 22 7.01% 1 2.22%
Arnaldo Carvalho de Melo 22 7.01% 1 2.22%
Gao Feng 17 5.41% 1 2.22%
Pablo Neira Ayuso 15 4.78% 5 11.11%
Thomas Graf 12 3.82% 2 4.44%
Nicolas Dichtel 8 2.55% 2 4.44%
Cheng Renquan 6 1.91% 1 2.22%
Harald Welte 6 1.91% 1 2.22%
Eric Dumazet 6 1.91% 2 4.44%
David Ahern 4 1.27% 1 2.22%
Christophe Ricard 4 1.27% 1 2.22%
David S. Miller 3 0.96% 1 2.22%
Denis V. Lunev 3 0.96% 1 2.22%
Jason A. Donenfeld 3 0.96% 1 2.22%
Pravin B Shelar 3 0.96% 1 2.22%
Eric W. Biedermann 2 0.64% 1 2.22%
Greg Kroah-Hartman 1 0.32% 1 2.22%
Total 314 45 


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

#include <linux/rhashtable.h>
#include <linux/atomic.h>
#include <linux/workqueue.h>
#include <net/sock.h>

/* flags */
#define NETLINK_F_KERNEL_SOCKET		0x1
#define NETLINK_F_RECV_PKTINFO		0x2
#define NETLINK_F_BROADCAST_SEND_ERROR	0x4
#define NETLINK_F_RECV_NO_ENOBUFS	0x8
#define NETLINK_F_LISTEN_ALL_NSID	0x10
#define NETLINK_F_CAP_ACK		0x20
#define NETLINK_F_EXT_ACK		0x40
#define NETLINK_F_STRICT_CHK		0x80

#define NLGRPSZ(x)	(ALIGN(x, sizeof(unsigned long) * 8) / 8)
#define NLGRPLONGS(x)	(NLGRPSZ(x)/sizeof(unsigned long))

struct netlink_sock {
	/* struct sock has to be the first member of netlink_sock */
	struct sock		sk;
	u32			portid;
	u32			dst_portid;
	u32			dst_group;
	u32			flags;
	u32			subscriptions;
	u32			ngroups;
	unsigned long		*groups;
	unsigned long		state;
	size_t			max_recvmsg_len;
	wait_queue_head_t	wait;
	bool			bound;
	bool			cb_running;
	int			dump_done_errno;
	struct netlink_callback	cb;
	struct mutex		*cb_mutex;
	struct mutex		cb_def_mutex;
	void			(*netlink_rcv)(struct sk_buff *skb);
	int			(*netlink_bind)(struct net *net, int group);
	void			(*netlink_unbind)(struct net *net, int group);
	struct module		*module;

	struct rhash_head	node;
	struct rcu_head		rcu;
	struct work_struct	work;
};

static inline struct netlink_sock *nlk_sk(struct sock *sk)
{
	return container_of(sk, struct netlink_sock, sk);
}

struct netlink_table {
	struct rhashtable	hash;
	struct hlist_head	mc_list;
	struct listeners __rcu	*listeners;
	unsigned int		flags;
	unsigned int		groups;
	struct mutex		*cb_mutex;
	struct module		*module;
	int			(*bind)(struct net *net, int group);
	void			(*unbind)(struct net *net, int group);
	bool			(*compare)(struct net *net, struct sock *sock);
	int			registered;
};

extern struct netlink_table *nl_table;
extern rwlock_t nl_table_lock;

#endif