include/linux/seccomp.h

   1 #ifndef _LINUX_SECCOMP_H
   2 #define _LINUX_SECCOMP_H
   3
   4
   5 #ifdef CONFIG_SECCOMP
   6
   7 #include <linux/thread_info.h>
   8 #include <asm/seccomp.h>
   9
  10 typedef struct { int mode; } seccomp_t;
  11
  12 extern void __secure_computing(int);
  13 static inline void secure_computing(int this_syscall)
  14 {
  15         if (unlikely(test_thread_flag(TIF_SECCOMP)))
  16                 __secure_computing(this_syscall);
  17 }
  18
  19 extern long prctl_get_seccomp(void);
  20 extern long prctl_set_seccomp(unsigned long);
  21
  22 static inline int seccomp_mode(seccomp_t *s)
  23 {
  24         return s->mode;
  25 }
  26
  27 #else /* CONFIG_SECCOMP */
  28
  29 #include <linux/errno.h>
  30
  31 typedef struct { } seccomp_t;
  32
  33 #define secure_computing(x) do { } while (0)
  34
  35 static inline long prctl_get_seccomp(void)
  36 {
  37         return -EINVAL;
  38 }
  39
  40 static inline long prctl_set_seccomp(unsigned long arg2)
  41 {
  42         return -EINVAL;
  43 }
  44
  45 static inline int seccomp_mode(seccomp_t *s)
  46 {
  47         return 0;
  48 }
  49
  50 #endif /* CONFIG_SECCOMP */
  51
  52 #endif /* _LINUX_SECCOMP_H */