Release 4.12 include/linux/seccomp.h

#ifndef _LINUX_SECCOMP_H

#define _LINUX_SECCOMP_H

#include <uapi/linux/seccomp.h>


#define SECCOMP_FILTER_FLAG_MASK	(SECCOMP_FILTER_FLAG_TSYNC)

#ifdef CONFIG_SECCOMP

#include <linux/thread_info.h>
#include <asm/seccomp.h>

struct seccomp_filter;
/**
 * struct seccomp - the state of a seccomp'ed process
 *
 * @mode:  indicates one of the valid values above for controlled
 *         system calls available to a process.
 * @filter: must always point to a valid seccomp-filter or NULL as it is
 *          accessed without locking during system call entry.
 *
 *          @filter must only be accessed from the context of current as there
 *          is no read locking.
 */

struct seccomp {
	
int mode;
	
struct seccomp_filter *filter;
};

#ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
extern int __secure_computing(const struct seccomp_data *sd);


static inline int secure_computing(const struct seccomp_data *sd)
{
	if (unlikely(test_thread_flag(TIF_SECCOMP)))
		return  __secure_computing(sd);
	return 0;
}
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#else
extern void secure_computing_strict(int this_syscall);
#endif

extern long prctl_get_seccomp(void);
extern long prctl_set_seccomp(unsigned long, char __user *);



static inline int seccomp_mode(struct seccomp *s)
{
	return s->mode;
}

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#else /* CONFIG_SECCOMP */

#include <linux/errno.h>


struct seccomp { };

struct seccomp_filter { };

#ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER


static inline int secure_computing(struct seccomp_data *sd) { return 0; }
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#else


static inline void secure_computing_strict(int this_syscall) { return; }
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#endif



static inline long prctl_get_seccomp(void)
{
	return -EINVAL;
}

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static inline long prctl_set_seccomp(unsigned long arg2, char __user *arg3)
{
	return -EINVAL;
}

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static inline int seccomp_mode(struct seccomp *s)
{
	return SECCOMP_MODE_DISABLED;
}
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#endif /* CONFIG_SECCOMP */

#ifdef CONFIG_SECCOMP_FILTER
extern void put_seccomp_filter(struct task_struct *tsk);
extern void get_seccomp_filter(struct task_struct *tsk);
#else  /* CONFIG_SECCOMP_FILTER */


static inline void put_seccomp_filter(struct task_struct *tsk)
{
	return;
}
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static inline void get_seccomp_filter(struct task_struct *tsk)
{
	return;
}
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#endif /* CONFIG_SECCOMP_FILTER */

#if defined(CONFIG_SECCOMP_FILTER) && defined(CONFIG_CHECKPOINT_RESTORE)
extern long seccomp_get_filter(struct task_struct *task,
			       unsigned long filter_off, void __user *data);
#else


static inline long seccomp_get_filter(struct task_struct *task,
				      unsigned long n, void __user *data)
{
	return -EINVAL;
}
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#endif /* CONFIG_SECCOMP_FILTER && CONFIG_CHECKPOINT_RESTORE */
#endif /* _LINUX_SECCOMP_H */
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Directory: include/linux

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