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#ifndef __LINUX_UMH_H__
#define __LINUX_UMH_H__
#include <linux/gfp.h>
#include <linux/stddef.h>
#include <linux/errno.h>
#include <linux/compiler.h>
#include <linux/workqueue.h>
#include <linux/sysctl.h>
struct cred;
struct file;
#define UMH_NO_WAIT 0x00 /* don't wait at all */
#define UMH_WAIT_EXEC 0x01 /* wait for the exec, but not the process */
#define UMH_WAIT_PROC 0x02 /* wait for the process to complete */
#define UMH_KILLABLE 0x04 /* wait for EXEC/PROC killable */
#define UMH_FREEZABLE 0x08 /* wait for EXEC/PROC freezable */
struct subprocess_info {
struct work_struct work;
struct completion *complete;
const char *path;
char **argv;
char **envp;
int wait;
int retval;
int (*init)(struct subprocess_info *info, struct cred *new);
void (*cleanup)(struct subprocess_info *info);
void *data;
} __randomize_layout;
extern int
call_usermodehelper(const char *path, char **argv, char **envp, int wait);
extern struct subprocess_info *
call_usermodehelper_setup(const char *path, char **argv, char **envp,
gfp_t gfp_mask,
int (*init)(struct subprocess_info *info, struct cred *new),
void (*cleanup)(struct subprocess_info *), void *data);
extern int
call_usermodehelper_exec(struct subprocess_info *info, int wait);
enum umh_disable_depth {
UMH_ENABLED = 0,
UMH_FREEZING,
UMH_DISABLED,
};
extern int __usermodehelper_disable(enum umh_disable_depth depth);
extern void __usermodehelper_set_disable_depth(enum umh_disable_depth depth);
static inline int usermodehelper_disable(void)
{
return __usermodehelper_disable(UMH_DISABLED);
}
static inline void usermodehelper_enable(void)
{
__usermodehelper_set_disable_depth(UMH_ENABLED);
}
extern int usermodehelper_read_trylock(void);
extern long usermodehelper_read_lock_wait(long timeout);
extern void usermodehelper_read_unlock(void);
#endif /* __LINUX_UMH_H__ */