projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| 607ca46e DH |
2 | #ifndef _UAPI_LINUX_SECCOMP_H |
| 3 | #define _UAPI_LINUX_SECCOMP_H | |
| 4 | ||
| 5 | #include <linux/compiler.h> | |
| 6 | #include <linux/types.h> | |
| 7 | ||
| 8 | ||
| 9 | /* Valid values for seccomp.mode and prctl(PR_SET_SECCOMP, <mode>) */ | |
| 10 | #define SECCOMP_MODE_DISABLED 0 /* seccomp is not in use. */ | |
| 11 | #define SECCOMP_MODE_STRICT 1 /* uses hard-coded filter. */ | |
| 12 | #define SECCOMP_MODE_FILTER 2 /* uses user-supplied filter. */ | |
| 13 | ||
| 48dc92b9 | 14 | /* Valid operations for seccomp syscall. */ |
| d612b1fd TH |
15 | #define SECCOMP_SET_MODE_STRICT 0 |
| 16 | #define SECCOMP_SET_MODE_FILTER 1 | |
| 17 | #define SECCOMP_GET_ACTION_AVAIL 2 | |
| 48dc92b9 | 18 | |
| c2e1f2e3 | 19 | /* Valid flags for SECCOMP_SET_MODE_FILTER */ |
| 8750de77 KC |
20 | #define SECCOMP_FILTER_FLAG_TSYNC (1UL << 0) |
| 21 | #define SECCOMP_FILTER_FLAG_LOG (1UL << 1) | |
| 22 | #define SECCOMP_FILTER_FLAG_SPEC_ALLOW (1UL << 2) | |
| c2e1f2e3 | 23 | |
| 607ca46e DH |
24 | /* |
| 25 | * All BPF programs must return a 32-bit value. | |
| 26 | * The bottom 16-bits are for optional return data. | |
| 4d3b0b05 KC |
27 | * The upper 16-bits are ordered from least permissive values to most, |
| 28 | * as a signed value (so 0x8000000 is negative). | |
| 607ca46e DH |
29 | * |
| 30 | * The ordering ensures that a min_t() over composed return values always | |
| 31 | * selects the least permissive choice. | |
| 32 | */ | |
| 4d3b0b05 KC |
33 | #define SECCOMP_RET_KILL_PROCESS 0x80000000U /* kill the process */ |
| 34 | #define SECCOMP_RET_KILL_THREAD 0x00000000U /* kill the thread */ | |
| 35 | #define SECCOMP_RET_KILL SECCOMP_RET_KILL_THREAD | |
| 36 | #define SECCOMP_RET_TRAP 0x00030000U /* disallow and force a SIGSYS */ | |
| 37 | #define SECCOMP_RET_ERRNO 0x00050000U /* returns an errno */ | |
| 38 | #define SECCOMP_RET_TRACE 0x7ff00000U /* pass to a tracer or disallow */ | |
| 39 | #define SECCOMP_RET_LOG 0x7ffc0000U /* allow after logging */ | |
| 40 | #define SECCOMP_RET_ALLOW 0x7fff0000U /* allow */ | |
| 607ca46e DH |
41 | |
| 42 | /* Masks for the return value sections. */ | |
| 0466bdb9 | 43 | #define SECCOMP_RET_ACTION_FULL 0xffff0000U |
| 607ca46e DH |
44 | #define SECCOMP_RET_ACTION 0x7fff0000U |
| 45 | #define SECCOMP_RET_DATA 0x0000ffffU | |
| 46 | ||
| 47 | /** | |
| 48 | * struct seccomp_data - the format the BPF program executes over. | |
| 49 | * @nr: the system call number | |
| 50 | * @arch: indicates system call convention as an AUDIT_ARCH_* value | |
| 51 | * as defined in <linux/audit.h>. | |
| 52 | * @instruction_pointer: at the time of the system call. | |
| 53 | * @args: up to 6 system call arguments always stored as 64-bit values | |
| 54 | * regardless of the architecture. | |
| 55 | */ | |
| 56 | struct seccomp_data { | |
| 57 | int nr; | |
| 58 | __u32 arch; | |
| 59 | __u64 instruction_pointer; | |
| 60 | __u64 args[6]; | |
| 61 | }; | |
| 62 | ||
| 63 | #endif /* _UAPI_LINUX_SECCOMP_H */ |