[PATCH 3/5] v2 seccomp_filters: Enable ftrace-based system call filtering
From: rostedt@goodmis.org (Steven Rostedt)
Date: 2011-05-16 15:26:47
Also in:
linux-mips, linuxppc-dev
Sorry to be absent from this thread so far, I just got back from my travels and I'm now catching up on email. On Wed, 2011-05-11 at 22:02 -0500, Will Drewry wrote:
quoted hunk ↗ jump to hunk
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 377a7a5..22e1668 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig@@ -1664,6 +1664,16 @@ config SECCOMP and the task is only allowed to execute a few safe syscalls defined by each seccomp mode. +config SECCOMP_FILTER + bool "Enable seccomp-based system call filtering" + depends on SECCOMP && EXPERIMENTAL + help + Per-process, inherited system call filtering using shared code + across seccomp and ftrace_syscalls. If CONFIG_FTRACE_SYSCALLS + is not available, enhanced filters will not be available. + + See Documentation/prctl/seccomp_filter.txt for more detail. + config CC_STACKPROTECTOR bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" depends on EXPERIMENTALdiff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index eccdefe..7641ee9 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig@@ -129,6 +129,16 @@ config SECCOMP If unsure, say Y. Only embedded should say N here. +config SECCOMP_FILTER + bool "Enable seccomp-based system call filtering" + depends on SECCOMP && EXPERIMENTAL + help + Per-process, inherited system call filtering using shared code + across seccomp and ftrace_syscalls. If CONFIG_FTRACE_SYSCALLS + is not available, enhanced filters will not be available. + + See Documentation/prctl/seccomp_filter.txt for more detail. + endmenu menu "Advanced setup"diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 8e256cc..fe4cbda 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig@@ -2245,6 +2245,16 @@ config SECCOMP If unsure, say Y. Only embedded should say N here. +config SECCOMP_FILTER + bool "Enable seccomp-based system call filtering" + depends on SECCOMP && EXPERIMENTAL + help + Per-process, inherited system call filtering using shared code + across seccomp and ftrace_syscalls. If CONFIG_FTRACE_SYSCALLS + is not available, enhanced filters will not be available. + + See Documentation/prctl/seccomp_filter.txt for more detail. + config USE_OF bool "Flattened Device Tree support" select OFdiff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 8f4d50b..83499e4 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig@@ -605,6 +605,16 @@ config SECCOMP If unsure, say Y. Only embedded should say N here. +config SECCOMP_FILTER + bool "Enable seccomp-based system call filtering" + depends on SECCOMP && EXPERIMENTAL + help + Per-process, inherited system call filtering using shared code + across seccomp and ftrace_syscalls. If CONFIG_FTRACE_SYSCALLS + is not available, enhanced filters will not be available. + + See Documentation/prctl/seccomp_filter.txt for more detail. + endmenu config ISA_DMA_APIdiff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 2508a6f..2777515 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig@@ -614,6 +614,16 @@ config SECCOMP If unsure, say Y. +config SECCOMP_FILTER + bool "Enable seccomp-based system call filtering" + depends on SECCOMP && EXPERIMENTAL + help + Per-process, inherited system call filtering using shared code + across seccomp and ftrace_syscalls. If CONFIG_FTRACE_SYSCALLS + is not available, enhanced filters will not be available. + + See Documentation/prctl/seccomp_filter.txt for more detail. + endmenu menu "Power Management"diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 4b89da2..00c1521 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig@@ -676,6 +676,16 @@ config SECCOMP If unsure, say N. +config SECCOMP_FILTER + bool "Enable seccomp-based system call filtering" + depends on SECCOMP && EXPERIMENTAL + help + Per-process, inherited system call filtering using shared code + across seccomp and ftrace_syscalls. If CONFIG_FTRACE_SYSCALLS + is not available, enhanced filters will not be available. + + See Documentation/prctl/seccomp_filter.txt for more detail. + config SMP bool "Symmetric multi-processing support" depends on SYS_SUPPORTS_SMPdiff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index e560d10..5b42255 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig@@ -270,6 +270,16 @@ config SECCOMP If unsure, say Y. Only embedded should say N here. +config SECCOMP_FILTER + bool "Enable seccomp-based system call filtering" + depends on SECCOMP && EXPERIMENTAL + help + Per-process, inherited system call filtering using shared code + across seccomp and ftrace_syscalls. If CONFIG_FTRACE_SYSCALLS + is not available, enhanced filters will not be available. + + See Documentation/prctl/seccomp_filter.txt for more detail. + config HOTPLUG_CPU bool "Support for hot-pluggable CPUs" depends on SPARC64 && SMPdiff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index cc6c53a..d6d44d9 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig@@ -1485,6 +1485,16 @@ config SECCOMP If unsure, say Y. Only embedded should say N here. +config SECCOMP_FILTER + bool "Enable seccomp-based system call filtering" + depends on SECCOMP && EXPERIMENTAL + help + Per-process, inherited system call filtering using shared code + across seccomp and ftrace_syscalls. If CONFIG_FTRACE_SYSCALLS + is not available, enhanced filters will not be available. + + See Documentation/prctl/seccomp_filter.txt for more detail. + config CC_STACKPROTECTOR bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" ---help---
You just cut-and-pasted 8 copies of a config selection. The proper way to do that is to add the Kconfig selection in a core kernel Kconfig, have it depend on "HAVE_SECCOMP_FILTER" and then in each of these configs, simply add in the arch Kconfig: config <ARCH> [...] select HAVE_SECCOMP_FILTER That way you don't need to duplicate the config option all over the place. -- Steve