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1 | #ifndef _UAPI_LINUX_SECCOMP_H |
2 | #define _UAPI_LINUX_SECCOMP_H | |
3 | ||
4 | #include <linux/compiler.h> | |
5 | #include <linux/types.h> | |
6 | ||
7 | ||
8 | /* Valid values for seccomp.mode and prctl(PR_SET_SECCOMP, <mode>) */ | |
9 | #define SECCOMP_MODE_DISABLED 0 /* seccomp is not in use. */ | |
10 | #define SECCOMP_MODE_STRICT 1 /* uses hard-coded filter. */ | |
11 | #define SECCOMP_MODE_FILTER 2 /* uses user-supplied filter. */ | |
12 | ||
13 | /* | |
14 | * All BPF programs must return a 32-bit value. | |
15 | * The bottom 16-bits are for optional return data. | |
16 | * The upper 16-bits are ordered from least permissive values to most. | |
17 | * | |
18 | * The ordering ensures that a min_t() over composed return values always | |
19 | * selects the least permissive choice. | |
20 | */ | |
21 | #define SECCOMP_RET_KILL 0x00000000U /* kill the task immediately */ | |
22 | #define SECCOMP_RET_TRAP 0x00030000U /* disallow and force a SIGSYS */ | |
23 | #define SECCOMP_RET_ERRNO 0x00050000U /* returns an errno */ | |
24 | #define SECCOMP_RET_TRACE 0x7ff00000U /* pass to a tracer or disallow */ | |
25 | #define SECCOMP_RET_ALLOW 0x7fff0000U /* allow */ | |
26 | ||
27 | /* Masks for the return value sections. */ | |
28 | #define SECCOMP_RET_ACTION 0x7fff0000U | |
29 | #define SECCOMP_RET_DATA 0x0000ffffU | |
30 | ||
31 | /** | |
32 | * struct seccomp_data - the format the BPF program executes over. | |
33 | * @nr: the system call number | |
34 | * @arch: indicates system call convention as an AUDIT_ARCH_* value | |
35 | * as defined in <linux/audit.h>. | |
36 | * @instruction_pointer: at the time of the system call. | |
37 | * @args: up to 6 system call arguments always stored as 64-bit values | |
38 | * regardless of the architecture. | |
39 | */ | |
40 | struct seccomp_data { | |
41 | int nr; | |
42 | __u32 arch; | |
43 | __u64 instruction_pointer; | |
44 | __u64 args[6]; | |
45 | }; | |
46 | ||
47 | #endif /* _UAPI_LINUX_SECCOMP_H */ |