kmod.c File Reference

#include <linux/module.h>
#include <linux/sched.h>
#include <linux/syscalls.h>
#include <linux/unistd.h>
#include <linux/kmod.h>
#include <linux/slab.h>
#include <linux/completion.h>
#include <linux/cred.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/workqueue.h>
#include <linux/security.h>
#include <linux/mount.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/resource.h>
#include <linux/notifier.h>
#include <linux/suspend.h>
#include <linux/rwsem.h>
#include <linux/ptrace.h>
#include <asm/uaccess.h>
#include <trace/events/module.h>

Go to the source code of this file.

Macros
#define	CAP_BSET   (void *)1
#define	CAP_PI   (void *)2
#define	RUNNING_HELPERS_TIMEOUT   (5 * HZ)

Functions
int	usermodehelper_read_trylock (void)
	EXPORT_SYMBOL_GPL (usermodehelper_read_trylock)
long	usermodehelper_read_lock_wait (long timeout)
	EXPORT_SYMBOL_GPL (usermodehelper_read_lock_wait)
void	usermodehelper_read_unlock (void)
	EXPORT_SYMBOL_GPL (usermodehelper_read_unlock)
void	__usermodehelper_set_disable_depth (enum umh_disable_depth depth)
int	__usermodehelper_disable (enum umh_disable_depth depth)
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)
	EXPORT_SYMBOL (call_usermodehelper_fns)
void __init	usermodehelper_init (void)

Variables
int	max_threads
struct ctl_table	usermodehelper_table []

Macro Definition Documentation

#define CAP_BSET   (void *)1

Definition at line 56 of file kmod.c.

#define CAP_PI   (void *)2

Definition at line 57 of file kmod.c.

#define RUNNING_HELPERS_TIMEOUT   (5 * HZ)

Definition at line 365 of file kmod.c.

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.

EXPORT_SYMBOL

(

call_usermodehelper_fns

)

EXPORT_SYMBOL_GPL

(

usermodehelper_read_trylock

)

EXPORT_SYMBOL_GPL

(

usermodehelper_read_lock_wait

)

EXPORT_SYMBOL_GPL

(

usermodehelper_read_unlock

)

void __init 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

int max_threads

Definition at line 92 of file fork.c.

struct ctl_table usermodehelper_table[]

Initial value:

= {
    {
        .procname   = "bset",
        .data       = CAP_BSET,
        .maxlen     = _KERNEL_CAPABILITY_U32S * sizeof(unsigned long),
        .mode       = 0600,
        .proc_handler   = proc_cap_handler,
    },
    {
        .procname   = "inheritable",
        .data       = CAP_PI,
        .maxlen     = _KERNEL_CAPABILITY_U32S * sizeof(unsigned long),
        .mode       = 0600,
        .proc_handler   = proc_cap_handler,
    },
    { }
}

Definition at line 695 of file kmod.c.