| #ifndef _LINUX_SECCOMP_H |
| #define _LINUX_SECCOMP_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 0xffff0000U |
| #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 /* _LINUX_SECCOMP_H */ |
