include/linux/seccomp.h

   1 #ifndef _LINUX_SECCOMP_H
   2 #define _LINUX_SECCOMP_H
   3
   4 #include <linux/config.h>
   5
   6 #ifdef CONFIG_SECCOMP
   7
   8 #define NR_SECCOMP_MODES 1
   9
  10 #include <linux/thread_info.h>
  11 #include <asm/seccomp.h>
  12
  13 typedef struct { int mode; } seccomp_t;
  14
  15 extern void __secure_computing(int);
  16 static inline void secure_computing(int this_syscall)
  17 {
  18         if (unlikely(test_thread_flag(TIF_SECCOMP)))
  19                 __secure_computing(this_syscall);
  20 }
  21
  22 static inline int has_secure_computing(struct thread_info *ti)
  23 {
  24         return unlikely(test_ti_thread_flag(ti, TIF_SECCOMP));
  25 }
  26
  27 #else /* CONFIG_SECCOMP */
  28
  29 #if (__GNUC__ > 2)
  30   typedef struct { } seccomp_t;
  31 #else
  32   typedef struct { int gcc_is_buggy; } seccomp_t;
  33 #endif
  34
  35 #define secure_computing(x) do { } while (0)
  36 /* static inline to preserve typechecking */
  37 static inline int has_secure_computing(struct thread_info *ti)
  38 {
  39         return 0;
  40 }
  41
  42 #endif /* CONFIG_SECCOMP */
  43
  44 #endif /* _LINUX_SECCOMP_H */