#ifndef __LINUX_NET_AFUNIX_H
#define __LINUX_NET_AFUNIX_H

#include <linux/socket.h>
#include <linux/un.h>
#include <linux/mutex.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 {
	atomic_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;
};

#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 char		recursion_level;
	unsigned long		gc_flags;
#define UNIX_GC_CANDIDATE	0
#define UNIX_GC_MAYBE_CYCLE	1
	struct socket_wq	peer_wq;
	wait_queue_t		peer_wake;
};

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

#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; }
static inline void unix_sysctl_unregister(struct net *net) {}
#endif
#endif
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=238d1d0f79f619d75c2cc741d6770fb0986aef24'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=238d1d0f79f619d75c2cc741d6770fb0986aef24'>include</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='238d1d0f79f619d75c2cc741d6770fb0986aef24'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-30 09:32:26 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-30 09:32:26 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=238d1d0f79f619d75c2cc741d6770fb0986aef24'>238d1d0f79f619d75c2cc741d6770fb0986aef24</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include?id=238d1d0f79f619d75c2cc741d6770fb0986aef24'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=238d1d0f79f619d75c2cc741d6770fb0986aef24'>ed11bb89c3c61cba7aff3ebc90647f83758a982d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include?id=238d1d0f79f619d75c2cc741d6770fb0986aef24'>include</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=f3de082c12e5e9ff43c58a7561f6ec3272d03a48'>f3de082c12e5e9ff43c58a7561f6ec3272d03a48</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include?id=238d1d0f79f619d75c2cc741d6770fb0986aef24&amp;id2=f3de082c12e5e9ff43c58a7561f6ec3272d03a48'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include?id=36f671be1db1b17d3d4ab0c8b47f81ccb1efcb75'>36f671be1db1b17d3d4ab0c8b47f81ccb1efcb75</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include?id=238d1d0f79f619d75c2cc741d6770fb0986aef24&amp;id2=36f671be1db1b17d3d4ab0c8b47f81ccb1efcb75'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'docs-4.10-rc1-fix' of git://git.lwn.net/linux</div><div class='commit-msg'>Pull documentation fixes from Jonathan Corbet:
 "Two small fixes:

   - A merge error on my part broke the DocBook build. I've
     requisitioned one of tglx's frozen sharks for appropriate
     disciplinary action and resolved to be more careful about testing
     the DocBook stuff as long as it's still around.

   - Fix an error in unaligned-memory-access.txt"

* tag 'docs-4.10-rc1-fix' of git://git.lwn.net/linux:
  Documentation/unaligned-memory-access.txt: fix incorrect comparison operator
  docs: Fix build failure
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=238d1d0f79f619d75c2cc741d6770fb0986aef24'>Diffstat</a> (limited to 'include')</div><table summary='diffstat' class='diffstat'>