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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /include/net/af_unix.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'include/net/af_unix.h')
-rw-r--r-- | include/net/af_unix.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/include/net/af_unix.h b/include/net/af_unix.h new file mode 100644 index 00000000..ca68e2ce --- /dev/null +++ b/include/net/af_unix.h @@ -0,0 +1,78 @@ +#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> + +extern void unix_inflight(struct file *fp); +extern void unix_notinflight(struct file *fp); +extern void unix_gc(void); +extern void wait_for_unix_gc(void); +extern struct sock *unix_get_socket(struct file *filp); +extern struct sock *unix_peer_get(struct sock *); + +#define UNIX_HASH_SIZE 256 + +extern unsigned int unix_tot_inflight; +extern spinlock_t unix_table_lock; +extern struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1]; + +struct unix_address { + atomic_t refcnt; + int len; + unsigned hash; + struct sockaddr_un name[0]; +}; + +struct unix_skb_parms { + struct pid *pid; /* Skb credentials */ + const struct cred *cred; + struct scm_fp_list *fp; /* Passed files */ +#ifdef CONFIG_SECURITY_NETWORK + u32 secid; /* Security ID */ +#endif +}; + +#define UNIXCB(skb) (*(struct unix_skb_parms *)&((skb)->cb)) +#define UNIXSID(skb) (&UNIXCB((skb)).secid) + +#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 readlock; + struct sock *peer; + struct sock *other; + struct list_head link; + atomic_long_t inflight; + spinlock_t lock; + unsigned int gc_candidate : 1; + unsigned int gc_maybe_cycle : 1; + unsigned char recursion_level; + struct socket_wq peer_wq; +}; +#define unix_sk(__sk) ((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 +extern int unix_sysctl_register(struct net *net); +extern 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 |