cregit-Linux how code gets into the kernel

Release 4.15 include/net/af_unix.h

Directory: include/net
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_NET_AFUNIX_H

#define __LINUX_NET_AFUNIX_H

#include <linux/socket.h>
#include <linux/un.h>
#include <linux/mutex.h>
#include <linux/refcount.h>
#include <net/sock.h>

void unix_inflight(struct user_struct *user, struct file *fp);
void unix_notinflight(struct user_struct *user, struct file *fp);
void unix_gc(void);
void wait_for_unix_gc(void);
struct sock *unix_get_socket(struct file *filp);
struct sock *unix_peer_get(struct sock *);


#define UNIX_HASH_SIZE	256

#define UNIX_HASH_BITS	8

extern unsigned int unix_tot_inflight;
extern spinlock_t unix_table_lock;
extern struct hlist_head unix_socket_table[2 * UNIX_HASH_SIZE];


struct unix_address {
	
refcount_t	refcnt;
	
int		len;
	
unsigned int	hash;
	
struct sockaddr_un name[0];
};


struct unix_skb_parms {
	
struct pid		*pid;		/* Skb credentials      */
	
kuid_t			uid;
	
kgid_t			gid;
	
struct scm_fp_list	*fp;		/* Passed files         */
#ifdef CONFIG_SECURITY_NETWORK
	
u32			secid;		/* Security ID          */
#endif
	
u32			consumed;

} __randomize_layout;


#define UNIXCB(skb) 	(*(struct unix_skb_parms *)&((skb)->cb))


#define unix_state_lock(s)	spin_lock(&unix_sk(s)->lock)

#define unix_state_unlock(s)	spin_unlock(&unix_sk(s)->lock)

#define unix_state_lock_nested(s) \
				spin_lock_nested(&unix_sk(s)->lock, \
                                SINGLE_DEPTH_NESTING)

/* The AF_UNIX socket */

struct unix_sock {
	/* WARNING: sk has to be the first member */
	
struct sock		sk;
	
struct unix_address     *addr;
	
struct path		path;
	

struct mutex		iolock, bindlock;
	
struct sock		*peer;
	
struct list_head	link;
	
atomic_long_t		inflight;
	
spinlock_t		lock;
	
unsigned long		gc_flags;

#define UNIX_GC_CANDIDATE	0

#define UNIX_GC_MAYBE_CYCLE	1
	
struct socket_wq	peer_wq;
	
wait_queue_entry_t		peer_wake;
};


static inline struct unix_sock *unix_sk(const struct sock *sk) { return (struct unix_sock *)sk; }

Contributors

PersonTokensPropCommitsCommitProp
Aaron Conole1982.61%133.33%
David S. Miller313.04%133.33%
Paul Moore14.35%133.33%
Total23100.00%3100.00%

#define peer_wait peer_wq.wait long unix_inq_len(struct sock *sk); long unix_outq_len(struct sock *sk); #ifdef CONFIG_SYSCTL int unix_sysctl_register(struct net *net); void unix_sysctl_unregister(struct net *net); #else
static inline int unix_sysctl_register(struct net *net) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Pavel Emelyanov1066.67%150.00%
Arnaldo Carvalho de Melo533.33%150.00%
Total15100.00%2100.00%


static inline void unix_sysctl_unregister(struct net *net) {}

Contributors

PersonTokensPropCommitsCommitProp
Arnaldo Carvalho de Melo763.64%150.00%
Pavel Emelyanov436.36%150.00%
Total11100.00%2100.00%

#endif #endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)8925.07%615.00%
Pavel Emelyanov6518.31%410.00%
Arnaldo Carvalho de Melo4211.83%25.00%
Eric Dumazet4111.55%615.00%
David S. Miller359.86%25.00%
Aaron Conole195.35%12.50%
Hannes Frederic Sowa102.82%12.50%
Ingo Molnar102.82%37.50%
Eric W. Biedermann92.54%25.00%
Catherine Zhang92.54%25.00%
dann frazier61.69%12.50%
Elena Reshetova41.13%12.50%
Benjamin LaHaise30.85%12.50%
Linus Torvalds30.85%12.50%
Al Viro30.85%25.00%
Miklos Szeredi20.56%12.50%
Rainer Weikusat20.56%12.50%
Greg Kroah-Hartman10.28%12.50%
Kees Cook10.28%12.50%
Paul Moore10.28%12.50%
Total355100.00%40100.00%
Directory: include/net
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