1 #ifndef _LINUX_SECCOMP_H
2 #define _LINUX_SECCOMP_H
4 #include <uapi/linux/seccomp.h>
6 #define SECCOMP_FILTER_FLAG_MASK (SECCOMP_FILTER_FLAG_TSYNC | \
7 SECCOMP_FILTER_FLAG_SPEC_ALLOW)
11 #include <linux/thread_info.h>
12 #include <asm/seccomp.h>
14 struct seccomp_filter;
16 * struct seccomp - the state of a seccomp'ed process
18 * @mode: indicates one of the valid values above for controlled
19 * system calls available to a process.
20 * @filter: must always point to a valid seccomp-filter or NULL as it is
21 * accessed without locking during system call entry.
23 * @filter must only be accessed from the context of current as there
28 struct seccomp_filter *filter;
31 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
32 extern int __secure_computing(void);
33 static inline int secure_computing(void)
35 if (unlikely(test_thread_flag(TIF_SECCOMP)))
36 return __secure_computing();
40 #define SECCOMP_PHASE1_OK 0
41 #define SECCOMP_PHASE1_SKIP 1
43 extern u32 seccomp_phase1(struct seccomp_data *sd);
44 int seccomp_phase2(u32 phase1_result);
46 extern void secure_computing_strict(int this_syscall);
49 extern long prctl_get_seccomp(void);
50 extern long prctl_set_seccomp(unsigned long, char __user *);
52 static inline int seccomp_mode(struct seccomp *s)
57 #else /* CONFIG_SECCOMP */
59 #include <linux/errno.h>
62 struct seccomp_filter { };
64 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
65 static inline int secure_computing(void) { return 0; }
67 static inline void secure_computing_strict(int this_syscall) { return; }
70 static inline long prctl_get_seccomp(void)
75 static inline long prctl_set_seccomp(unsigned long arg2, char __user *arg3)
80 static inline int seccomp_mode(struct seccomp *s)
82 return SECCOMP_MODE_DISABLED;
84 #endif /* CONFIG_SECCOMP */
86 #ifdef CONFIG_SECCOMP_FILTER
87 extern void put_seccomp_filter(struct task_struct *tsk);
88 extern void get_seccomp_filter(struct task_struct *tsk);
89 #else /* CONFIG_SECCOMP_FILTER */
90 static inline void put_seccomp_filter(struct task_struct *tsk)
94 static inline void get_seccomp_filter(struct task_struct *tsk)
98 #endif /* CONFIG_SECCOMP_FILTER */
100 #if defined(CONFIG_SECCOMP_FILTER) && defined(CONFIG_CHECKPOINT_RESTORE)
101 extern long seccomp_get_filter(struct task_struct *task,
102 unsigned long filter_off, void __user *data);
104 static inline long seccomp_get_filter(struct task_struct *task,
105 unsigned long n, void __user *data)
109 #endif /* CONFIG_SECCOMP_FILTER && CONFIG_CHECKPOINT_RESTORE */
110 #endif /* _LINUX_SECCOMP_H */