path: root/4567_distro-Gentoo-Kconfig.patch

--- a/Kconfig	2021-06-04 19:03:33.646823432 -0400
+++ b/Kconfig	2021-06-04 19:03:40.508892817 -0400
@@ -30,3 +30,5 @@ source "lib/Kconfig"
 source "lib/Kconfig.debug"
 
 source "Documentation/Kconfig"
+
+source "distro/Kconfig"
--- /dev/null	2021-06-06 14:01:09.950742356 -0400
+++ b/distro/Kconfig	2021-06-06 17:48:05.912077568 -0400
@@ -0,0 +1,267 @@
+menu "Gentoo Linux"
+
+config GENTOO_LINUX
+	bool "Gentoo Linux support"
+
+	default y
+
+	help
+		In order to boot Gentoo Linux a minimal set of config settings needs to
+		be enabled in the kernel; to avoid the users from having to enable them
+		manually as part of a Gentoo Linux installation or a new clean config,
+		we enable these config settings by default for convenience.
+
+		See the settings that become available for more details and fine-tuning.
+
+config GENTOO_LINUX_UDEV
+	bool "Linux dynamic and persistent device naming (userspace devfs) support"
+
+	depends on GENTOO_LINUX
+	default y if GENTOO_LINUX
+
+	select DEVTMPFS
+	select TMPFS
+	select UNIX
+
+	select MMU
+	select SHMEM
+
+	help
+		In order to boot Gentoo Linux a minimal set of config settings needs to
+		be enabled in the kernel; to avoid the users from having to enable them
+		manually as part of a Gentoo Linux installation or a new clean config,
+		we enable these config settings by default for convenience.
+
+		Currently this only selects TMPFS, DEVTMPFS and their dependencies.
+		TMPFS is enabled to maintain a tmpfs file system at /dev/shm, /run and
+		/sys/fs/cgroup; DEVTMPFS to maintain a devtmpfs file system at /dev.
+
+		Some of these are critical files that need to be available early in the
+		boot process; if not available, it causes sysfs and udev to malfunction.
+
+		To ensure Gentoo Linux boots, it is best to leave this setting enabled;
+		if you run a custom setup, you could consider whether to disable this.
+
+config GENTOO_LINUX_PORTAGE
+	bool "Select options required by Portage features"
+
+	depends on GENTOO_LINUX
+	default y if GENTOO_LINUX
+
+	select CGROUPS
+	select NAMESPACES
+	select IPC_NS
+	select NET_NS
+	select PID_NS
+	select SYSVIPC
+	select UTS_NS
+
+	help
+		This enables options required by various Portage FEATURES.
+		Currently this selects:
+
+		CGROUPS     (required for FEATURES=cgroup)
+		IPC_NS      (required for FEATURES=ipc-sandbox)
+		NET_NS      (required for FEATURES=network-sandbox)
+		PID_NS		(required for FEATURES=pid-sandbox)
+		SYSVIPC     (required by IPC_NS)
+   
+
+		It is highly recommended that you leave this enabled as these FEATURES
+		are, or will soon be, enabled by default.
+
+menu "Support for init systems, system and service managers"
+	visible if GENTOO_LINUX
+
+config GENTOO_LINUX_INIT_SCRIPT
+	bool "OpenRC, runit and other script based systems and managers"
+
+	default y if GENTOO_LINUX
+
+	depends on GENTOO_LINUX
+
+	select BINFMT_SCRIPT
+	select CGROUPS
+	select EPOLL
+	select FILE_LOCKING
+	select INOTIFY_USER
+	select SIGNALFD
+	select TIMERFD
+
+	help
+		The init system is the first thing that loads after the kernel booted.
+
+		These config settings allow you to select which init systems to support;
+		instead of having to select all the individual settings all over the
+		place, these settings allows you to select all the settings at once.
+
+		This particular setting enables all the known requirements for OpenRC,
+		runit and similar script based systems and managers.
+
+		If you are unsure about this, it is best to leave this setting enabled.
+
+config GENTOO_LINUX_INIT_SYSTEMD
+	bool "systemd"
+
+	default n
+
+	depends on GENTOO_LINUX && GENTOO_LINUX_UDEV
+
+	select AUTOFS4_FS
+	select BLK_DEV_BSG
+	select BPF_SYSCALL
+	select CGROUP_BPF
+	select CGROUPS
+	select CHECKPOINT_RESTORE
+	select CRYPTO_HMAC 
+	select CRYPTO_SHA256
+	select CRYPTO_USER_API_HASH
+	select DEVPTS_MULTIPLE_INSTANCES
+	select DMIID if X86_32 || X86_64 || X86
+	select EPOLL
+	select FANOTIFY
+	select FHANDLE
+	select FILE_LOCKING
+	select INOTIFY_USER
+	select IPV6
+	select NET
+	select NET_NS
+	select PROC_FS
+	select SECCOMP
+	select SECCOMP_FILTER
+	select SIGNALFD
+	select SYSFS
+	select TIMERFD
+	select TMPFS_POSIX_ACL
+	select TMPFS_XATTR
+	select USER_NS
+
+	select ANON_INODES
+	select BLOCK
+	select EVENTFD
+	select FSNOTIFY
+	select INET
+	select NLATTR
+
+	help
+		The init system is the first thing that loads after the kernel booted.
+
+		These config settings allow you to select which init systems to support;
+		instead of having to select all the individual settings all over the
+		place, these settings allows you to select all the settings at once.
+
+		This particular setting enables all the known requirements for systemd;
+		it also enables suggested optional settings, as the package suggests to.
+
+endmenu
+
+menu "Enable Kernel Self Protection Project Recommendations"
+	visible if GENTOO_LINUX
+
+config GENTOO_KERNEL_SELF_PROTECTION
+	bool "Architecture Independant Kernel Self Protection Project Recommendations"
+
+	help
+  Recommended Kernel settings based on the suggestions from the Kernel Self Protection Project
+	See: https://kernsec.org/wiki/index.php/Kernel_Self_Protection_Project/Recommended_Settings
+	Note, there may be additional settings for which the CONFIG_ setting is invisible in menuconfig due 
+	to unmet dependencies. Search for GENTOO_KERNEL_SELF_PROTECTION_{X86_64, ARM64, X86_32, ARM} for 
+	dependency information on your specific architecture.
+	Note 2: Please see the URL above for numeric settings, e.g. CONFIG_DEFAULT_MMAP_MIN_ADDR=65536 
+	for X86_64
+
+	depends on GENTOO_LINUX && !HARDENED_USERCOPY_FALLBACK && !HARDENED_USERCOPY_PAGESPAN && !ACPI_CUSTOM_METHOD && !COMPAT_BRK && !DEVKMEM && !PROC_KCORE && !COMPAT_VDSO && !KEXEC && !HIBERNATION && !LEGACY_PTYS && !SECURITY_SELINUX_DISABLE && !X86_X32 && !MODIFY_LDT_SYSCALL
+
+
+	select BUG
+	select STRICT_KERNEL_RWX
+	select DEBUG_WX
+	select STACKPROTECTOR
+	select STACKPROTECTOR_STRONG
+	select STRICT_DEVMEM
+	select IO_STRICT_DEVMEM
+
+	select SYN_COOKIES
+	select DEBUG_CREDENTIALS
+	select DEBUG_NOTIFIERS
+	select DEBUG_LIST
+	select DEBUG_SG
+	select BUG_ON_DATA_CORRUPTION
+	select SCHED_STACK_END_CHECK
+	select SECCOMP
+	select SECCOMP_FILTER
+	select SECURITY
+	select SECURITY_YAMA
+	select HARDENED_USERCOPY
+	select SLAB_FREELIST_RANDOM
+	select SLAB_FREELIST_HARDENED
+	select SHUFFLE_PAGE_ALLOCATOR
+	select SLUB_DEBUG
+	select PAGE_POISONING
+	select PAGE_POISONING_NO_SANITY
+	select PAGE_POISONING_ZERO
+	select INIT_ON_ALLOC_DEFAULT_ON
+	select INIT_ON_FREE_DEFAULT_ON
+	select VMAP_STACK
+	select REFCOUNT_FULL
+	select FORTIFY_SOURCE
+	select SECURITY_DMESG_RESTRICT
+	select PANIC_ON_OOPS
+	select CONFIG_GCC_PLUGINS=y
+	select GCC_PLUGIN_LATENT_ENTROPY
+	select GCC_PLUGIN_STRUCTLEAK
+	select GCC_PLUGIN_STRUCTLEAK_BYREF_ALL
+	select GCC_PLUGIN_STACKLEAK
+	select GCC_PLUGIN_RANDSTRUCT
+	select GCC_PLUGIN_RANDSTRUCT_PERFORMANCE
+
+menu "Architecture Specific Self Protection Project Recommendations"
+
+config GENTOO_KERNEL_SELF_PROTECTION_X86_64
+	bool "X86_64 KSPP Settings"
+
+	depends on !X86_MSR && X86_64
+	default n
+	
+	select RANDOMIZE_BASE
+	select RANDOMIZE_MEMORY
+	select LEGACY_VSYSCALL_NONE
+ select PAGE_TABLE_ISOLATION
+
+
+config GENTOO_KERNEL_SELF_PROTECTION_ARM64
+	bool "ARM64 KSPP Settings"
+
+	depends on ARM64
+	default n
+
+	select RANDOMIZE_BASE
+	select ARM64_SW_TTBR0_PAN
+	select CONFIG_UNMAP_KERNEL_AT_EL0
+
+config GENTOO_KERNEL_SELF_PROTECTION_X86_32
+	bool "X86_32 KSPP Settings"
+
+	depends on !X86_MSR && !MODIFY_LDT_SYSCALL && !M486 && X86_32
+	default n
+
+	select HIGHMEM64G
+	select X86_PAE
+	select RANDOMIZE_BASE
+	select PAGE_TABLE_ISOLATION
+
+config GENTOO_KERNEL_SELF_PROTECTION_ARM
+	bool "ARM KSPP Settings"
+
+	depends on !OABI_COMPAT && ARM
+	default n
+
+	select VMSPLIT_3G
+	select STRICT_MEMORY_RWX
+	select CPU_SW_DOMAIN_PAN
+
+endmenu
+
+endmenu
+
+endmenu