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Luis R. Rodriguez
c1f3fa2a4f
In the future usermode helper users do not need to carry in all the of kmod headers declarations. Since kmod.h still includes umh.h this change has no functional changes, each umh user can be cleaned up separately later and with time. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Luis R. Rodriguez <[email protected]> Cc: Kees Cook <[email protected]> Cc: Dmitry Torokhov <[email protected]> Cc: Jessica Yu <[email protected]> Cc: Rusty Russell <[email protected]> Cc: Michal Marek <[email protected]> Cc: Petr Mladek <[email protected]> Cc: Miroslav Benes <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Guenter Roeck <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Matt Redfearn <[email protected]> Cc: Dan Carpenter <[email protected]> Cc: Colin Ian King <[email protected]> Cc: Daniel Mentz <[email protected]> Cc: David Binderman <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
#ifndef __LINUX_UMH_H__
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#define __LINUX_UMH_H__
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#include <linux/gfp.h>
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#include <linux/stddef.h>
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#include <linux/errno.h>
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#include <linux/compiler.h>
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#include <linux/workqueue.h>
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#include <linux/sysctl.h>
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struct cred;
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struct file;
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#define UMH_NO_WAIT 0 /* don't wait at all */
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#define UMH_WAIT_EXEC 1 /* wait for the exec, but not the process */
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#define UMH_WAIT_PROC 2 /* wait for the process to complete */
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#define UMH_KILLABLE 4 /* wait for EXEC/PROC killable */
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struct subprocess_info {
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struct work_struct work;
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struct completion *complete;
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const char *path;
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char **argv;
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char **envp;
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int wait;
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int retval;
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int (*init)(struct subprocess_info *info, struct cred *new);
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void (*cleanup)(struct subprocess_info *info);
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void *data;
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} __randomize_layout;
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extern int
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call_usermodehelper(const char *path, char **argv, char **envp, int wait);
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extern struct subprocess_info *
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call_usermodehelper_setup(const char *path, char **argv, char **envp,
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gfp_t gfp_mask,
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int (*init)(struct subprocess_info *info, struct cred *new),
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void (*cleanup)(struct subprocess_info *), void *data);
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extern int
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call_usermodehelper_exec(struct subprocess_info *info, int wait);
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extern struct ctl_table usermodehelper_table[];
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enum umh_disable_depth {
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UMH_ENABLED = 0,
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UMH_FREEZING,
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UMH_DISABLED,
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};
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extern int __usermodehelper_disable(enum umh_disable_depth depth);
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extern void __usermodehelper_set_disable_depth(enum umh_disable_depth depth);
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static inline int usermodehelper_disable(void)
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{
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return __usermodehelper_disable(UMH_DISABLED);
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}
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static inline void usermodehelper_enable(void)
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{
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__usermodehelper_set_disable_depth(UMH_ENABLED);
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}
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extern int usermodehelper_read_trylock(void);
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extern long usermodehelper_read_lock_wait(long timeout);
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extern void usermodehelper_read_unlock(void);
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#endif /* __LINUX_UMH_H__ */
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