diff options
Diffstat (limited to 'security/sandbox/chromium/sandbox/linux/system_headers/linux_seccomp.h')
| -rw-r--r-- | security/sandbox/chromium/sandbox/linux/system_headers/linux_seccomp.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/security/sandbox/chromium/sandbox/linux/system_headers/linux_seccomp.h b/security/sandbox/chromium/sandbox/linux/system_headers/linux_seccomp.h new file mode 100644 index 0000000000..a60fe2ad3d --- /dev/null +++ b/security/sandbox/chromium/sandbox/linux/system_headers/linux_seccomp.h @@ -0,0 +1,110 @@ +// Copyright 2015 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_SECCOMP_H_ +#define SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_SECCOMP_H_ + +// The Seccomp2 kernel ABI is not part of older versions of glibc. +// As we can't break compilation with these versions of the library, +// we explicitly define all missing symbols. +// If we ever decide that we can now rely on system headers, the following +// include files should be enabled: +// #include <linux/audit.h> +// #include <linux/seccomp.h> + +// For audit.h +#ifndef EM_ARM +#define EM_ARM 40 +#endif +#ifndef EM_386 +#define EM_386 3 +#endif +#ifndef EM_X86_64 +#define EM_X86_64 62 +#endif +#ifndef EM_MIPS +#define EM_MIPS 8 +#endif +#ifndef EM_AARCH64 +#define EM_AARCH64 183 +#endif + +#ifndef __AUDIT_ARCH_64BIT +#define __AUDIT_ARCH_64BIT 0x80000000 +#endif +#ifndef __AUDIT_ARCH_LE +#define __AUDIT_ARCH_LE 0x40000000 +#endif +#ifndef AUDIT_ARCH_ARM +#define AUDIT_ARCH_ARM (EM_ARM|__AUDIT_ARCH_LE) +#endif +#ifndef AUDIT_ARCH_I386 +#define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE) +#endif +#ifndef AUDIT_ARCH_X86_64 +#define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) +#endif +#ifndef AUDIT_ARCH_MIPSEL +#define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE) +#endif +#ifndef AUDIT_ARCH_MIPSEL64 +#define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) +#endif +#ifndef AUDIT_ARCH_AARCH64 +#define AUDIT_ARCH_AARCH64 (EM_AARCH64 | __AUDIT_ARCH_64BIT | __AUDIT_ARCH_LE) +#endif + +// For prctl.h +#ifndef PR_SET_SECCOMP +#define PR_SET_SECCOMP 22 +#define PR_GET_SECCOMP 21 +#endif +#ifndef PR_SET_NO_NEW_PRIVS +#define PR_SET_NO_NEW_PRIVS 38 +#define PR_GET_NO_NEW_PRIVS 39 +#endif +#ifndef IPC_64 +#define IPC_64 0x0100 +#endif + +// In order to build will older tool chains, we currently have to avoid +// including <linux/seccomp.h>. Until that can be fixed (if ever). Rely on +// our own definitions of the seccomp kernel ABI. +#ifndef SECCOMP_MODE_FILTER +#define SECCOMP_MODE_DISABLED 0 +#define SECCOMP_MODE_STRICT 1 +#define SECCOMP_MODE_FILTER 2 // User user-supplied filter +#endif + +#ifndef SECCOMP_SET_MODE_STRICT +#define SECCOMP_SET_MODE_STRICT 0 +#endif +#ifndef SECCOMP_SET_MODE_FILTER +#define SECCOMP_SET_MODE_FILTER 1 +#endif +#ifndef SECCOMP_FILTER_FLAG_TSYNC +#define SECCOMP_FILTER_FLAG_TSYNC 1 +#endif + +#ifndef SECCOMP_RET_KILL +// Return values supported for BPF filter programs. Please note that the +// "illegal" SECCOMP_RET_INVALID is not supported by the kernel, should only +// ever be used internally, and would result in the kernel killing our process. +#define SECCOMP_RET_KILL 0x00000000U // Kill the task immediately +#define SECCOMP_RET_INVALID 0x00010000U // Illegal return value +#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 +#define SECCOMP_RET_ACTION 0xffff0000U // Masks for the return value +#define SECCOMP_RET_DATA 0x0000ffffU // sections +#else +#define SECCOMP_RET_INVALID 0x00010000U // Illegal return value +#endif + +#ifndef SYS_SECCOMP +#define SYS_SECCOMP 1 +#endif + +#endif // SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_SECCOMP_H_ |