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b60a8280ba
There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Reflow modified prototypes to 80 columns. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
81 lines
2.0 KiB
C
81 lines
2.0 KiB
C
#ifndef __LINUX_NET_AFUNIX_H
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#define __LINUX_NET_AFUNIX_H
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#include <linux/socket.h>
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#include <linux/un.h>
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#include <linux/mutex.h>
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#include <net/sock.h>
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void unix_inflight(struct file *fp);
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void unix_notinflight(struct file *fp);
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void unix_gc(void);
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void wait_for_unix_gc(void);
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struct sock *unix_get_socket(struct file *filp);
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struct sock *unix_peer_get(struct sock *);
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#define UNIX_HASH_SIZE 256
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#define UNIX_HASH_BITS 8
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extern unsigned int unix_tot_inflight;
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extern spinlock_t unix_table_lock;
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extern struct hlist_head unix_socket_table[2 * UNIX_HASH_SIZE];
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struct unix_address {
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atomic_t refcnt;
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int len;
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unsigned int hash;
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struct sockaddr_un name[0];
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};
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struct unix_skb_parms {
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struct pid *pid; /* Skb credentials */
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kuid_t uid;
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kgid_t gid;
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struct scm_fp_list *fp; /* Passed files */
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#ifdef CONFIG_SECURITY_NETWORK
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u32 secid; /* Security ID */
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#endif
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};
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#define UNIXCB(skb) (*(struct unix_skb_parms *)&((skb)->cb))
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#define UNIXSID(skb) (&UNIXCB((skb)).secid)
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#define unix_state_lock(s) spin_lock(&unix_sk(s)->lock)
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#define unix_state_unlock(s) spin_unlock(&unix_sk(s)->lock)
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#define unix_state_lock_nested(s) \
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spin_lock_nested(&unix_sk(s)->lock, \
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SINGLE_DEPTH_NESTING)
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/* The AF_UNIX socket */
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struct unix_sock {
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/* WARNING: sk has to be the first member */
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struct sock sk;
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struct unix_address *addr;
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struct path path;
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struct mutex readlock;
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struct sock *peer;
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struct list_head link;
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atomic_long_t inflight;
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spinlock_t lock;
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unsigned char recursion_level;
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unsigned long gc_flags;
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#define UNIX_GC_CANDIDATE 0
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#define UNIX_GC_MAYBE_CYCLE 1
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struct socket_wq peer_wq;
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};
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#define unix_sk(__sk) ((struct unix_sock *)__sk)
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#define peer_wait peer_wq.wait
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long unix_inq_len(struct sock *sk);
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long unix_outq_len(struct sock *sk);
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#ifdef CONFIG_SYSCTL
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int unix_sysctl_register(struct net *net);
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void unix_sysctl_unregister(struct net *net);
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#else
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static inline int unix_sysctl_register(struct net *net) { return 0; }
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static inline void unix_sysctl_unregister(struct net *net) {}
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#endif
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#endif
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