85 строки
2.3 KiB
C
85 строки
2.3 KiB
C
#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 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 */
|
|
|
|
struct subprocess_info {
|
|
struct work_struct work;
|
|
struct completion *complete;
|
|
const char *path;
|
|
char **argv;
|
|
char **envp;
|
|
struct file *file;
|
|
int wait;
|
|
int retval;
|
|
pid_t pid;
|
|
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);
|
|
|
|
struct subprocess_info *call_usermodehelper_setup_file(struct file *file,
|
|
int (*init)(struct subprocess_info *info, struct cred *new),
|
|
void (*cleanup)(struct subprocess_info *), void *data);
|
|
struct umh_info {
|
|
const char *cmdline;
|
|
struct file *pipe_to_umh;
|
|
struct file *pipe_from_umh;
|
|
struct list_head list;
|
|
void (*cleanup)(struct umh_info *info);
|
|
pid_t pid;
|
|
};
|
|
int fork_usermode_blob(void *data, size_t len, struct umh_info *info);
|
|
|
|
extern int
|
|
call_usermodehelper_exec(struct subprocess_info *info, int wait);
|
|
|
|
extern struct ctl_table usermodehelper_table[];
|
|
|
|
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__ */
|