1 #ifndef __LINUX_KMOD_H__
2 #define __LINUX_KMOD_H__
3
4 /*
5 * include/linux/kmod.h
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22 #include <linux/stddef.h>
23 #include <linux/errno.h>
24 #include <linux/compiler.h>
25
26 #define KMOD_PATH_LEN 256
27
28 #ifdef CONFIG_KMOD
29 /* modprobe exit status on success, -ve on error. Return value
30 * usually useless though. */
31 extern int request_module(const char * name, ...) __attribute__ ((format (printf, 1, 2)));
32 #else
request_module(const char * name,...)33 static inline int request_module(const char * name, ...) { return -ENOSYS; }
34 #endif
35
36 #define try_then_request_module(x, mod...) ((x) ?: (request_module(mod), (x)))
37
38 struct key;
39 extern int call_usermodehelper_keys(char *path, char *argv[], char *envp[],
40 struct key *session_keyring, int wait);
41
42 static inline int
call_usermodehelper(char * path,char ** argv,char ** envp,int wait)43 call_usermodehelper(char *path, char **argv, char **envp, int wait)
44 {
45 return call_usermodehelper_keys(path, argv, envp, NULL, wait);
46 }
47
48 extern void usermodehelper_init(void);
49
50 #endif /* __LINUX_KMOD_H__ */
51