diff options
Diffstat (limited to 'include/uapi/linux/seccomp.h')
| -rw-r--r-- | include/uapi/linux/seccomp.h | 47 | 
1 files changed, 47 insertions, 0 deletions
diff --git a/include/uapi/linux/seccomp.h b/include/uapi/linux/seccomp.h new file mode 100644 index 00000000000..ac2dc9f7297 --- /dev/null +++ b/include/uapi/linux/seccomp.h @@ -0,0 +1,47 @@ +#ifndef _UAPI_LINUX_SECCOMP_H +#define _UAPI_LINUX_SECCOMP_H + +#include <linux/compiler.h> +#include <linux/types.h> + + +/* Valid values for seccomp.mode and prctl(PR_SET_SECCOMP, <mode>) */ +#define SECCOMP_MODE_DISABLED	0 /* seccomp is not in use. */ +#define SECCOMP_MODE_STRICT	1 /* uses hard-coded filter. */ +#define SECCOMP_MODE_FILTER	2 /* uses user-supplied filter. */ + +/* + * All BPF programs must return a 32-bit value. + * The bottom 16-bits are for optional return data. + * The upper 16-bits are ordered from least permissive values to most. + * + * The ordering ensures that a min_t() over composed return values always + * selects the least permissive choice. + */ +#define SECCOMP_RET_KILL	0x00000000U /* kill the task immediately */ +#define SECCOMP_RET_TRAP	0x00030000U /* disallow and force a SIGSYS */ +#define SECCOMP_RET_ERRNO	0x00050000U /* returns an errno */ +#define SECCOMP_RET_TRACE	0x7ff00000U /* pass to a tracer or disallow */ +#define SECCOMP_RET_ALLOW	0x7fff0000U /* allow */ + +/* Masks for the return value sections. */ +#define SECCOMP_RET_ACTION	0x7fff0000U +#define SECCOMP_RET_DATA	0x0000ffffU + +/** + * struct seccomp_data - the format the BPF program executes over. + * @nr: the system call number + * @arch: indicates system call convention as an AUDIT_ARCH_* value + *        as defined in <linux/audit.h>. + * @instruction_pointer: at the time of the system call. + * @args: up to 6 system call arguments always stored as 64-bit values + *        regardless of the architecture. + */ +struct seccomp_data { +	int nr; +	__u32 arch; +	__u64 instruction_pointer; +	__u64 args[6]; +}; + +#endif /* _UAPI_LINUX_SECCOMP_H */  |