msgutil.c File Reference

#include <linux/spinlock.h>
#include <linux/init.h>
#include <linux/security.h>
#include <linux/slab.h>
#include <linux/ipc.h>
#include <linux/msg.h>
#include <linux/ipc_namespace.h>
#include <linux/utsname.h>
#include <asm/uaccess.h>
#include "util.h"

Go to the source code of this file.

Data Structures
struct	msg_msgseg

Macros
#define	DATALEN_MSG   (PAGE_SIZE-sizeof(struct msg_msg))
#define	DATALEN_SEG   (PAGE_SIZE-sizeof(struct msg_msgseg))

Functions
	DEFINE_SPINLOCK (mq_lock)
struct msg_msg *	load_msg (const void __user *src, int len)
int	store_msg (void __user *dest, struct msg_msg *msg, int len)
void	free_msg (struct msg_msg *msg)

Variables
struct ipc_namespace	init_ipc_ns
atomic_t	nr_ipc_ns = ATOMIC_INIT(1)

Macro Definition Documentation

#define DATALEN_MSG   (PAGE_SIZE-sizeof(struct msg_msg))

Definition at line 42 of file msgutil.c.

#define DATALEN_SEG   (PAGE_SIZE-sizeof(struct msg_msgseg))

Definition at line 43 of file msgutil.c.

Function Documentation

DEFINE_SPINLOCK

(

mq_lock

)

void free_msg

(

struct msg_msg *

msg

)

Definition at line 131 of file msgutil.c.

struct msg_msg* load_msg ( const void __user *  src, int  len  )

read

Definition at line 45 of file msgutil.c.

int store_msg	(	void __user *	dest,
		struct msg_msg *	msg,
		int	len
	)

Definition at line 104 of file msgutil.c.

Variable Documentation

struct ipc_namespace init_ipc_ns

Initial value:

= {
    .count      = ATOMIC_INIT(1),
    .user_ns = &init_user_ns,
}

Definition at line 30 of file msgutil.c.

atomic_t nr_ipc_ns = ATOMIC_INIT(1)

Definition at line 35 of file msgutil.c.