kmod.h File Reference

#include <linux/gfp.h>
#include <linux/stddef.h>
#include <linux/errno.h>
#include <linux/compiler.h>
#include <linux/workqueue.h>
#include <linux/sysctl.h>

Go to the source code of this file.

Data Structures
struct	subprocess_info

Macros
#define	KMOD_PATH_LEN   256
#define	try_then_request_module(x, mod...)   (x)
#define	UMH_NO_WAIT   0 /* don't wait at all */
#define	UMH_WAIT_EXEC   1 /* wait for the exec, but not the process */
#define	UMH_WAIT_PROC   2 /* wait for the process to complete */
#define	UMH_KILLABLE   4 /* wait for EXEC/PROC killable */

Enumerations
enum	umh_disable_depth { UMH_ENABLED = 0, UMH_FREEZING, UMH_DISABLED }

Functions
int	call_usermodehelper_fns (char *path, char **argv, char **envp, int wait, int(*init)(struct subprocess_info *info, struct cred *new), void(*cleanup)(struct subprocess_info *), void *data)
void	usermodehelper_init (void)
int	__usermodehelper_disable (enum umh_disable_depth depth)
void	__usermodehelper_set_disable_depth (enum umh_disable_depth depth)
int	usermodehelper_read_trylock (void)
long	usermodehelper_read_lock_wait (long timeout)
void	usermodehelper_read_unlock (void)

Variables
struct ctl_table	usermodehelper_table []

Macro Definition Documentation

#define KMOD_PATH_LEN   256

Definition at line 29 of file kmod.h.

#define try_then_request_module	(		x,
			mod...
	)		(x)

Definition at line 44 of file kmod.h.

#define UMH_KILLABLE   4 /* wait for EXEC/PROC killable */

Definition at line 54 of file kmod.h.

#define UMH_NO_WAIT   0 /* don't wait at all */

Definition at line 51 of file kmod.h.

#define UMH_WAIT_EXEC   1 /* wait for the exec, but not the process */

Definition at line 52 of file kmod.h.

#define UMH_WAIT_PROC   2 /* wait for the process to complete */

Definition at line 53 of file kmod.h.

Enumeration Type Documentation

enum umh_disable_depth

Enumerator:

UMH_ENABLED
UMH_FREEZING
UMH_DISABLED

Definition at line 83 of file kmod.h.

Function Documentation

int __usermodehelper_disable

(

enum umh_disable_depth

depth

)

__usermodehelper_disable - Prevent new helpers from being started. : New value to assign to usermodehelper_disabled.

Set usermodehelper_disabled to and wait for running helpers to exit.

Definition at line 451 of file kmod.c.

void __usermodehelper_set_disable_depth

(

enum umh_disable_depth

depth

)

__usermodehelper_set_disable_depth - Modify usermodehelper_disabled. : New value to assign to usermodehelper_disabled.

Change the value of usermodehelper_disabled (under umhelper_sem locked for writing) and wakeup tasks waiting for it to change.

Definition at line 437 of file kmod.c.

int call_usermodehelper_fns	(	char *	path,
		char **	argv,
		char **	envp,
		int	wait,
		int(*)(struct subprocess_info *info, struct cred *new)	init,
		void(*)(struct subprocess_info *)	cleanup,
		void *	data
	)

Definition at line 616 of file kmod.c.

void usermodehelper_init

(

void

)

Definition at line 713 of file kmod.c.

long usermodehelper_read_lock_wait

(

long

timeout

)

Definition at line 397 of file kmod.c.

int usermodehelper_read_trylock

(

void

)

Definition at line 367 of file kmod.c.

void usermodehelper_read_unlock

(

void

)

Definition at line 424 of file kmod.c.

Variable Documentation

struct ctl_table usermodehelper_table[]

Definition at line 695 of file kmod.c.