diff options
Diffstat (limited to 'src/shared/linux/seccomp-bpf.h')
| -rw-r--r-- | src/shared/linux/seccomp-bpf.h | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/src/shared/linux/seccomp-bpf.h b/src/shared/linux/seccomp-bpf.h deleted file mode 100644 index 1e3d136739..0000000000 --- a/src/shared/linux/seccomp-bpf.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * seccomp example for x86 (32-bit and 64-bit) with BPF macros - * - * Copyright (c) 2012 The Chromium OS Authors <chromium-os-dev@chromium.org> - * Authors: - * Will Drewry <wad@chromium.org> - * Kees Cook <keescook@chromium.org> - * - * The code may be used by anyone for any purpose, and can serve as a - * starting point for developing applications using mode 2 seccomp. - */ -#ifndef _SECCOMP_BPF_H_ -#define _SECCOMP_BPF_H_ - -#include <stdio.h> -#include <stddef.h> -#include <stdlib.h> -#include <errno.h> -#include <signal.h> -#include <string.h> -#include <unistd.h> - -#include <sys/prctl.h> - -#include <linux/unistd.h> -#include <linux/audit.h> -#include <linux/filter.h> -#include <linux/seccomp.h> - -#ifndef SECCOMP_MODE_FILTER -# define SECCOMP_MODE_FILTER 2 /* uses user-supplied filter. */ -# define SECCOMP_RET_KILL 0x00000000U /* kill the task immediately */ -# define SECCOMP_RET_TRAP 0x00030000U /* disallow and force a SIGSYS */ -# define SECCOMP_RET_ALLOW 0x7fff0000U /* allow */ -struct seccomp_data { - int nr; - __u32 arch; - __u64 instruction_pointer; - __u64 args[6]; -}; -#endif -#ifndef SYS_SECCOMP -# define SYS_SECCOMP 1 -#endif - -#define syscall_nr (offsetof(struct seccomp_data, nr)) -#define arch_nr (offsetof(struct seccomp_data, arch)) - -#if defined(__i386__) -# define REG_SYSCALL REG_EAX -# define ARCH_NR AUDIT_ARCH_I386 -#elif defined(__x86_64__) -# define REG_SYSCALL REG_RAX -# define ARCH_NR AUDIT_ARCH_X86_64 -#else -# warning "Platform does not support seccomp filter yet" -# define REG_SYSCALL 0 -# define ARCH_NR 0 -#endif - -#define VALIDATE_ARCHITECTURE \ - BPF_STMT(BPF_LD+BPF_W+BPF_ABS, arch_nr), \ - BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, ARCH_NR, 1, 0), \ - BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_KILL) - -#define EXAMINE_SYSCALL \ - BPF_STMT(BPF_LD+BPF_W+BPF_ABS, syscall_nr) - -#define ALLOW_SYSCALL(name) \ - BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, __NR_##name, 0, 1), \ - BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_ALLOW) - -#define _KILL_PROCESS \ - BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_KILL) - -#endif /* _SECCOMP_BPF_H_ */ |