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| author | Michal Simek <monstr@monstr.eu> | 2010-08-06 08:50:35 +0200 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2010-10-21 07:51:25 +0200 |
| commit | 68c6ac3366764730c6cc6bcc7003b233bd6b6571 (patch) | |
| tree | a8496bc7ab8490d6ff68b6a653c11eb289844684 | |
| parent | microblaze: Remove old user debugging gdb stub (diff) | |
| download | linux-68c6ac3366764730c6cc6bcc7003b233bd6b6571.tar.xz linux-68c6ac3366764730c6cc6bcc7003b233bd6b6571.zip | |
microblaze: Add seccomp support
Add seccomp support.
Signed-off-by: Michal Simek <monstr@monstr.eu>
| -rw-r--r-- | arch/microblaze/Kconfig | 17 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/seccomp.h | 16 |
2 files changed, 33 insertions, 0 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 692fdfce2a23..dad40fc2bef8 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -121,6 +121,23 @@ config CMDLINE_FORCE Set this to have arguments from the default kernel command string override those passed by the boot loader. +config SECCOMP + bool "Enable seccomp to safely compute untrusted bytecode" + depends on PROC_FS + default y + help + This kernel feature is useful for number crunching applications + that may need to compute untrusted bytecode during their + execution. By using pipes or other transports made available to + the process as file descriptors supporting the read/write + syscalls, it's possible to isolate those applications in + their own address space using seccomp. Once seccomp is + enabled via /proc/<pid>/seccomp, it cannot be disabled + and the task is only allowed to execute a few safe syscalls + defined by each seccomp mode. + + If unsure, say Y. Only embedded should say N here. + endmenu menu "Advanced setup" diff --git a/arch/microblaze/include/asm/seccomp.h b/arch/microblaze/include/asm/seccomp.h new file mode 100644 index 000000000000..0d912758a0d7 --- /dev/null +++ b/arch/microblaze/include/asm/seccomp.h @@ -0,0 +1,16 @@ +#ifndef _ASM_MICROBLAZE_SECCOMP_H +#define _ASM_MICROBLAZE_SECCOMP_H + +#include <linux/unistd.h> + +#define __NR_seccomp_read __NR_read +#define __NR_seccomp_write __NR_write +#define __NR_seccomp_exit __NR_exit +#define __NR_seccomp_sigreturn __NR_sigreturn + +#define __NR_seccomp_read_32 __NR_read +#define __NR_seccomp_write_32 __NR_write +#define __NR_seccomp_exit_32 __NR_exit +#define __NR_seccomp_sigreturn_32 __NR_sigreturn + +#endif /* _ASM_MICROBLAZE_SECCOMP_H */ |