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#
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# Build and Setup RPi2/3 Kernel
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#
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# Load utility functions
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. ./functions.sh
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# Need to use kali kernel src if nexmon is enabled
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if [ "$ENABLE_NEXMON" = true ] ; then
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KERNEL_URL="${KALI_KERNEL_URL}"
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# Clear Branch and KernelSRC_DIR if using nexmon. Everyone will forget to clone kali kernel instead of nomrla kernel
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KERNEL_BRANCH=""
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KERNELSRC_DIR=""
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fi
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# Fetch and build latest raspberry kernel
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if [ "$BUILD_KERNEL" = true ] ; then
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# Setup source directory
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mkdir -p "${KERNEL_DIR}"
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# Copy existing kernel sources into chroot directory
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if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then
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# Copy kernel sources and include hidden files
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cp -r "${KERNELSRC_DIR}/". "${KERNEL_DIR}"
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# Clean the kernel sources
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if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then
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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper
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fi
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else # KERNELSRC_DIR=""
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# Create temporary directory for kernel sources
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temp_dir=$(as_nobody mktemp -d)
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# Fetch current RPi2/3 kernel sources
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if [ -z "${KERNEL_BRANCH}" ] ; then
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as_nobody -H git -C "${temp_dir}" clone --depth=1 "${KERNEL_URL}" linux
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else
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as_nobody -H git -C "${temp_dir}" clone --depth=1 --branch "${KERNEL_BRANCH}" "${KERNEL_URL}" linux
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fi
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# Copy downloaded kernel sources
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cp -r "${temp_dir}/linux/"* "${KERNEL_DIR}"
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# Remove temporary directory for kernel sources
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rm -fr "${temp_dir}"
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# Set permissions of the kernel sources
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chown -R root:root "${R}/usr/src"
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fi
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# Calculate optimal number of kernel building threads
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if [ "$KERNEL_THREADS" = "1" ] && [ -r /proc/cpuinfo ] ; then
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KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)
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fi
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# Configure and build kernel
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if [ "$KERNELSRC_PREBUILT" = false ] ; then
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# Remove device, network and filesystem drivers from kernel configuration
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if [ "$KERNEL_REDUCE" = true ] ; then
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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
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sed -i\
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-e "s/\(^CONFIG_SND.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_SOUND.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_AC97.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_VIDEO_.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_MEDIA_TUNER.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_DVB.*\=\)[ym]/\1n/"\
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-e "s/\(^CONFIG_REISERFS.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_JFS.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_XFS.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_GFS2.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_OCFS2.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_BTRFS.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_HFS.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_JFFS2.*\=\)[ym]/\1n/"\
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-e "s/\(^CONFIG_UBIFS.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_SQUASHFS.*\=\)[ym]/\1n/"\
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-e "s/\(^CONFIG_W1.*\=\)[ym]/\1n/"\
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-e "s/\(^CONFIG_HAMRADIO.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_CAN.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_IRDA.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_BT_.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_WIMAX.*\=\)[ym]/\1n/"\
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-e "s/\(^CONFIG_6LOWPAN.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_IEEE802154.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_NFC.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_FB_TFT=.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_TOUCHSCREEN.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_USB_GSPCA_.*\=\).*/\1n/"\
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-e "s/\(^CONFIG_DRM.*\=\).*/\1n/"\
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"${KERNEL_DIR}/.config"
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fi
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if [ "$KERNELSRC_CONFIG" = true ] ; then
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# Load default raspberry kernel configuration
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make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
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#Switch to KERNELSRC_DIR so we can use set_kernel_config
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cd "${KERNEL_DIR}" || exit
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if [ "$KERNEL_ARCH" = arm64 ] ; then
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#Fix SD_DRIVER upstream and downstream mess in 64bit RPIdeb_config
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# use correct driver MMC_BCM2835_MMC instead of MMC_BCM2835_SDHOST - see https://www.raspberrypi.org/forums/viewtopic.php?t=210225
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set_kernel_config CONFIG_MMC_BCM2835 n
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set_kernel_config CONFIG_MMC_SDHCI_IPROC n
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set_kernel_config CONFIG_USB_DWC2 n
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sed -i "s|depends on MMC_BCM2835_MMC && MMC_BCM2835_DMA|depends on MMC_BCM2835_MMC|" "${KERNEL_DIR}"/drivers/mmc/host/Kconfig
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#VLAN got disabled without reason in arm64bit
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set_kernel_config CONFIG_IPVLAN m
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fi
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# enable ZSWAP see https://askubuntu.com/a/472227 or https://wiki.archlinux.org/index.php/zswap
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if [ "$KERNEL_ZSWAP" = true ] ; then
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set_kernel_config CONFIG_ZPOOL y
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set_kernel_config CONFIG_ZSWAP y
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set_kernel_config CONFIG_ZBUD y
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set_kernel_config CONFIG_Z3FOLD y
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set_kernel_config CONFIG_ZSMALLOC y
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set_kernel_config CONFIG_PGTABLE_MAPPING y
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set_kernel_config CONFIG_LZO_COMPRESS y
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fi
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# enable basic KVM support; see https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=210546&start=25#p1300453
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if [ "$KERNEL_VIRT" = true ] && { [ "$RPI_MODEL" = 2 ] || [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; } ; then
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set_kernel_config CONFIG_HAVE_KVM_IRQCHIP y
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set_kernel_config CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL y
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set_kernel_config CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT y
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set_kernel_config CONFIG_HAVE_KVM_EVENTFD y
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set_kernel_config CONFIG_HAVE_KVM_IRQFD y
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set_kernel_config CONFIG_HAVE_KVM_IRQ_ROUTING y
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set_kernel_config CONFIG_HAVE_KVM_MSI y
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set_kernel_config CONFIG_KVM y
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set_kernel_config CONFIG_KVM_ARM_HOST y
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set_kernel_config CONFIG_KVM_ARM_PMU y
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set_kernel_config CONFIG_KVM_COMPAT y
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set_kernel_config CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT y
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set_kernel_config CONFIG_KVM_MMIO y
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set_kernel_config CONFIG_KVM_VFIO y
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set_kernel_config CONFIG_VHOST m
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set_kernel_config CONFIG_VHOST_CROSS_ENDIAN_LEGACY y
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set_kernel_config CONFIG_VHOST_NET m
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set_kernel_config CONFIG_VIRTUALIZATION y
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set_kernel_config CONFIG_MMU_NOTIFIER y
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# erratum
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set_kernel_config ARM64_ERRATUM_834220 y
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# https://sourceforge.net/p/kvm/mailman/message/18440797/
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set_kernel_config CONFIG_PREEMPT_NOTIFIERS y
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fi
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# enable apparmor,integrity audit,
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if [ "$KERNEL_SECURITY" = true ] ; then
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# security filesystem, security models and audit
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set_kernel_config CONFIG_SECURITYFS y
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set_kernel_config CONFIG_SECURITY y
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set_kernel_config CONFIG_AUDIT y
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# harden strcpy and memcpy
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set_kernel_config CONFIG_HARDENED_USERCOPY y
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set_kernel_config CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR y
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set_kernel_config CONFIG_FORTIFY_SOURCE y
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# integrity sub-system
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set_kernel_config CONFIG_INTEGRITY y
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set_kernel_config CONFIG_INTEGRITY_ASYMMETRIC_KEYS y
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set_kernel_config CONFIG_INTEGRITY_AUDIT y
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set_kernel_config CONFIG_INTEGRITY_SIGNATURE y
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set_kernel_config CONFIG_INTEGRITY_TRUSTED_KEYRING y
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# This option provides support for retaining authentication tokens and access keys in the kernel.
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set_kernel_config CONFIG_KEYS y
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set_kernel_config CONFIG_KEYS_COMPAT y
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# Apparmor
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set_kernel_config CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE 0
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set_kernel_config CONFIG_SECURITY_APPARMOR_HASH_DEFAULT y
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set_kernel_config CONFIG_DEFAULT_SECURITY_APPARMOR y
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set_kernel_config CONFIG_SECURITY_APPARMOR y
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set_kernel_config CONFIG_SECURITY_APPARMOR_HASH y
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set_kernel_config CONFIG_DEFAULT_SECURITY "apparmor"
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# restrictions on unprivileged users reading the kernel
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set_kernel_config CONFIG_SECURITY_DMESG_RESTRICT y
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# network security hooks
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set_kernel_config CONFIG_SECURITY_NETWORK y
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set_kernel_config CONFIG_SECURITY_NETWORK_XFRM y
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set_kernel_config CONFIG_SECURITY_PATH y
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set_kernel_config CONFIG_SECURITY_YAMA n
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# New Options
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if [ "$KERNEL_NF" = true ] ; then
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set_kernel_config CONFIG_IP_NF_SECURITY m
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set_kernel_config CONFIG_NETLABEL y
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set_kernel_config CONFIG_IP6_NF_SECURITY m
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fi
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set_kernel_config CONFIG_SECURITY_SELINUX n
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set_kernel_config CONFIG_SECURITY_SMACK n
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set_kernel_config CONFIG_SECURITY_TOMOYO n
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set_kernel_config CONFIG_SECURITY_APPARMOR_DEBUG n
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set_kernel_config CONFIG_SECURITY_LOADPIN n
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set_kernel_config CONFIG_HARDENED_USERCOPY_PAGESPAN n
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set_kernel_config CONFIG_IMA n
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set_kernel_config CONFIG_EVM n
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set_kernel_config CONFIG_FANOTIFY_ACCESS_PERMISSIONS y
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set_kernel_config CONFIG_NFSD_V4_SECURITY_LABEL y
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set_kernel_config CONFIG_PKCS7_MESSAGE_PARSER y
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set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYRING y
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set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS y
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set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE y
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set_kernel_config CONFIG_SECONDARY_TRUSTED_KEYRING y
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set_kernel_config CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY n
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set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS m
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set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE 4096
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set_kernel_config CONFIG_ARM64_CRYPTO y
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set_kernel_config CONFIG_CRYPTO_SHA256_ARM64 m
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set_kernel_config CONFIG_CRYPTO_SHA512_ARM64 m
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set_kernel_config CONFIG_CRYPTO_SHA1_ARM64_CE m
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set_kernel_config CRYPTO_GHASH_ARM64_CE m
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set_kernel_config CRYPTO_SHA2_ARM64_CE m
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set_kernel_config CONFIG_CRYPTO_CRCT10DIF_ARM64_CE m
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set_kernel_config CONFIG_CRYPTO_CRC32_ARM64_CE m
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set_kernel_config CONFIG_CRYPTO_AES_ARM64 m
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set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE m
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set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_CCM y
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set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_BLK y
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set_kernel_config CONFIG_CRYPTO_AES_ARM64_NEON_BLK m
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set_kernel_config CONFIG_CRYPTO_CHACHA20_NEON m
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set_kernel_config CONFIG_CRYPTO_AES_ARM64_BS m
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set_kernel_config SYSTEM_TRUSTED_KEYS
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fi
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# Netfilter kernel support See https://github.com/raspberrypi/linux/issues/2177#issuecomment-354647406
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if [ "$KERNEL_NF" = true ] ; then
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set_kernel_config CONFIG_IP_NF_TARGET_SYNPROXY m
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set_kernel_config CONFIG_NETFILTER_XT_TARGET_AUDIT m
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set_kernel_config CONFIG_NETFILTER_XT_MATCH_CGROUP m
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set_kernel_config CONFIG_NETFILTER_XT_MATCH_IPCOMP m
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set_kernel_config CONFIG_NETFILTER_XT_MATCH_SOCKET m
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set_kernel_config CONFIG_NFT_FIB_INET m
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set_kernel_config CONFIG_NFT_FIB_IPV4 m
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set_kernel_config CONFIG_NFT_FIB_IPV6 m
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set_kernel_config CONFIG_NFT_FIB_NETDEV m
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set_kernel_config CONFIG_NFT_OBJREF m
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set_kernel_config CONFIG_NFT_RT m
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set_kernel_config CONFIG_NFT_SET_BITMAP m
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set_kernel_config CONFIG_NF_CONNTRACK_TIMEOUT y
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set_kernel_config CONFIG_NF_LOG_ARP m
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set_kernel_config CONFIG_NF_SOCKET_IPV4 m
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set_kernel_config CONFIG_NF_SOCKET_IPV6 m
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set_kernel_config CONFIG_BRIDGE_EBT_BROUTE m
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set_kernel_config CONFIG_BRIDGE_EBT_T_FILTER m
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set_kernel_config CONFIG_BRIDGE_NF_EBTABLES m
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set_kernel_config CONFIG_IP6_NF_IPTABLES m
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set_kernel_config CONFIG_IP6_NF_MATCH_AH m
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set_kernel_config CONFIG_IP6_NF_MATCH_EUI64 m
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set_kernel_config CONFIG_IP6_NF_NAT m
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set_kernel_config CONFIG_IP6_NF_TARGET_MASQUERADE m
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set_kernel_config CONFIG_IP6_NF_TARGET_NPT m
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set_kernel_config CONFIG_IP_NF_SECURITY m
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set_kernel_config CONFIG_IP_SET_BITMAP_IPMAC m
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set_kernel_config CONFIG_IP_SET_BITMAP_PORT m
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set_kernel_config CONFIG_IP_SET_HASH_IP m
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set_kernel_config CONFIG_IP_SET_HASH_IPMARK m
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set_kernel_config CONFIG_IP_SET_HASH_IPPORT m
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set_kernel_config CONFIG_IP_SET_HASH_IPPORTIP m
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set_kernel_config CONFIG_IP_SET_HASH_IPPORTNET m
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set_kernel_config CONFIG_IP_SET_HASH_MAC m
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set_kernel_config CONFIG_IP_SET_HASH_NET m
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set_kernel_config CONFIG_IP_SET_HASH_NETIFACE m
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set_kernel_config CONFIG_IP_SET_HASH_NETNET m
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set_kernel_config CONFIG_IP_SET_HASH_NETPORT m
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set_kernel_config CONFIG_IP_SET_HASH_NETPORTNET m
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set_kernel_config CONFIG_IP_SET_LIST_SET m
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set_kernel_config CONFIG_NETFILTER_XTABLES m
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set_kernel_config CONFIG_NETFILTER_XTABLES m
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set_kernel_config CONFIG_NFT_BRIDGE_META m
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set_kernel_config CONFIG_NFT_BRIDGE_REJECT m
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set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV4 m
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set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV6 m
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set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV4 m
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set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV6 m
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set_kernel_config CONFIG_NFT_COMPAT m
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set_kernel_config CONFIG_NFT_COUNTER m
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set_kernel_config CONFIG_NFT_CT m
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set_kernel_config CONFIG_NFT_DUP_IPV4 m
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set_kernel_config CONFIG_NFT_DUP_IPV6 m
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set_kernel_config CONFIG_NFT_DUP_NETDEV m
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set_kernel_config CONFIG_NFT_EXTHDR m
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set_kernel_config CONFIG_NFT_FWD_NETDEV m
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set_kernel_config CONFIG_NFT_HASH m
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set_kernel_config CONFIG_NFT_LIMIT m
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set_kernel_config CONFIG_NFT_LOG m
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set_kernel_config CONFIG_NFT_MASQ m
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set_kernel_config CONFIG_NFT_MASQ_IPV4 m
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set_kernel_config CONFIG_NFT_MASQ_IPV6 m
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set_kernel_config CONFIG_NFT_META m
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set_kernel_config CONFIG_NFT_NAT m
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set_kernel_config CONFIG_NFT_NUMGEN m
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set_kernel_config CONFIG_NFT_QUEUE m
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set_kernel_config CONFIG_NFT_QUOTA m
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set_kernel_config CONFIG_NFT_REDIR m
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set_kernel_config CONFIG_NFT_REDIR_IPV4 m
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set_kernel_config CONFIG_NFT_REDIR_IPV6 m
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set_kernel_config CONFIG_NFT_REJECT m
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set_kernel_config CONFIG_NFT_REJECT_INET m
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set_kernel_config CONFIG_NFT_REJECT_IPV4 m
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set_kernel_config CONFIG_NFT_REJECT_IPV6 m
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set_kernel_config CONFIG_NFT_SET_HASH m
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set_kernel_config CONFIG_NFT_SET_RBTREE m
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set_kernel_config CONFIG_NF_CONNTRACK_IPV4 m
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set_kernel_config CONFIG_NF_CONNTRACK_IPV6 m
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set_kernel_config CONFIG_NF_DEFRAG_IPV4 m
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set_kernel_config CONFIG_NF_DEFRAG_IPV6 m
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set_kernel_config CONFIG_NF_DUP_IPV4 m
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set_kernel_config CONFIG_NF_DUP_IPV6 m
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set_kernel_config CONFIG_NF_DUP_NETDEV m
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set_kernel_config CONFIG_NF_LOG_BRIDGE m
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set_kernel_config CONFIG_NF_LOG_IPV4 m
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set_kernel_config CONFIG_NF_LOG_IPV6 m
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set_kernel_config CONFIG_NF_NAT_IPV4 m
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set_kernel_config CONFIG_NF_NAT_IPV6 m
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|
set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_NAT_PPTP m
|
|
|
set_kernel_config CONFIG_NF_NAT_PROTO_GRE m
|
|
|
set_kernel_config CONFIG_NF_NAT_REDIRECT m
|
|
|
set_kernel_config CONFIG_NF_NAT_SIP m
|
|
|
set_kernel_config CONFIG_NF_NAT_SNMP_BASIC m
|
|
|
set_kernel_config CONFIG_NF_NAT_TFTP m
|
|
|
set_kernel_config CONFIG_NF_REJECT_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_REJECT_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_TABLES m
|
|
|
set_kernel_config CONFIG_NF_TABLES_ARP m
|
|
|
set_kernel_config CONFIG_NF_TABLES_BRIDGE m
|
|
|
set_kernel_config CONFIG_NF_TABLES_INET m
|
|
|
set_kernel_config CONFIG_NF_TABLES_IPV4 m
|
|
|
set_kernel_config CONFIG_NF_TABLES_IPV6 m
|
|
|
set_kernel_config CONFIG_NF_TABLES_NETDEV m
|
|
|
fi
|
|
|
|
|
|
# Enables BPF syscall for systemd-journald see https://github.com/torvalds/linux/blob/master/init/Kconfig#L848 or https://groups.google.com/forum/#!topic/linux.gentoo.user/_2aSc_ztGpA
|
|
|
if [ "$KERNEL_BPF" = true ] ; then
|
|
|
set_kernel_config CONFIG_BPF_SYSCALL y
|
|
|
set_kernel_config CONFIG_BPF_EVENTS y
|
|
|
set_kernel_config CONFIG_BPF_STREAM_PARSER y
|
|
|
set_kernel_config CONFIG_CGROUP_BPF y
|
|
|
fi
|
|
|
|
|
|
# KERNEL_DEFAULT_GOV was set by user
|
|
|
if [ "$KERNEL_DEFAULT_GOV" != powersave ] && [ -n "$KERNEL_DEFAULT_GOV" ] ; then
|
|
|
|
|
|
case "$KERNEL_DEFAULT_GOV" in
|
|
|
performance)
|
|
|
set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE y
|
|
|
;;
|
|
|
userspace)
|
|
|
set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE y
|
|
|
;;
|
|
|
ondemand)
|
|
|
set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND y
|
|
|
;;
|
|
|
conservative)
|
|
|
set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE y
|
|
|
;;
|
|
|
shedutil)
|
|
|
set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL y
|
|
|
;;
|
|
|
*)
|
|
|
echo "error: unsupported default cpu governor"
|
|
|
exit 1
|
|
|
;;
|
|
|
esac
|
|
|
|
|
|
# unset previous default governor
|
|
|
unset_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
|
|
|
fi
|
|
|
|
|
|
#Revert to previous directory
|
|
|
cd "${WORKDIR}" || exit
|
|
|
|
|
|
# Set kernel configuration parameters to enable qemu emulation
|
|
|
if [ "$ENABLE_QEMU" = true ] ; then
|
|
|
echo "CONFIG_FHANDLE=y" >> "${KERNEL_DIR}"/.config
|
|
|
echo "CONFIG_LBDAF=y" >> "${KERNEL_DIR}"/.config
|
|
|
|
|
|
if [ "$ENABLE_CRYPTFS" = true ] ; then
|
|
|
{
|
|
|
echo "CONFIG_EMBEDDED=y"
|
|
|
echo "CONFIG_EXPERT=y"
|
|
|
echo "CONFIG_DAX=y"
|
|
|
echo "CONFIG_MD=y"
|
|
|
echo "CONFIG_BLK_DEV_MD=y"
|
|
|
echo "CONFIG_MD_AUTODETECT=y"
|
|
|
echo "CONFIG_BLK_DEV_DM=y"
|
|
|
echo "CONFIG_BLK_DEV_DM_BUILTIN=y"
|
|
|
echo "CONFIG_DM_CRYPT=y"
|
|
|
echo "CONFIG_CRYPTO_BLKCIPHER=y"
|
|
|
echo "CONFIG_CRYPTO_CBC=y"
|
|
|
echo "CONFIG_CRYPTO_XTS=y"
|
|
|
echo "CONFIG_CRYPTO_SHA512=y"
|
|
|
echo "CONFIG_CRYPTO_MANAGER=y"
|
|
|
} >> "${KERNEL_DIR}"/.config
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
# Copy custom kernel configuration file
|
|
|
if [ -n "$KERNELSRC_USRCONFIG" ] ; then
|
|
|
cp "$KERNELSRC_USRCONFIG" "${KERNEL_DIR}"/.config
|
|
|
fi
|
|
|
|
|
|
# Set kernel configuration parameters to their default values
|
|
|
if [ "$KERNEL_OLDDEFCONFIG" = true ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" olddefconfig
|
|
|
fi
|
|
|
|
|
|
# Start menu-driven kernel configuration (interactive)
|
|
|
if [ "$KERNEL_MENUCONFIG" = true ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig
|
|
|
fi
|
|
|
# end if "$KERNELSRC_CONFIG" = true
|
|
|
fi
|
|
|
|
|
|
# Use ccache to cross compile the kernel
|
|
|
if [ "$KERNEL_CCACHE" = true ] ; then
|
|
|
cc="ccache ${CROSS_COMPILE}gcc"
|
|
|
else
|
|
|
cc="${CROSS_COMPILE}gcc"
|
|
|
fi
|
|
|
|
|
|
# Cross compile kernel and dtbs
|
|
|
make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" "${KERNEL_BIN_IMAGE}" dtbs
|
|
|
|
|
|
# Cross compile kernel modules
|
|
|
if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
|
|
|
make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" modules
|
|
|
fi
|
|
|
# end if "$KERNELSRC_PREBUILT" = false
|
|
|
fi
|
|
|
|
|
|
# Check if kernel compilation was successful
|
|
|
if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" ] ; then
|
|
|
echo "error: kernel compilation failed! (kernel image not found)"
|
|
|
cleanup
|
|
|
exit 1
|
|
|
fi
|
|
|
|
|
|
# Install kernel modules
|
|
|
if [ "$ENABLE_REDUCE" = true ] ; then
|
|
|
if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install
|
|
|
fi
|
|
|
else
|
|
|
if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install
|
|
|
fi
|
|
|
|
|
|
# Install kernel firmware
|
|
|
if grep -q "^firmware_install:" "${KERNEL_DIR}/Makefile" ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
# Install kernel headers
|
|
|
if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install
|
|
|
fi
|
|
|
|
|
|
# Prepare boot (firmware) directory
|
|
|
mkdir "${BOOT_DIR}"
|
|
|
|
|
|
# Get kernel release version
|
|
|
KERNEL_VERSION=$(cat "${KERNEL_DIR}/include/config/kernel.release")
|
|
|
|
|
|
# Copy kernel configuration file to the boot directory
|
|
|
install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"
|
|
|
|
|
|
# Prepare device tree directory
|
|
|
mkdir "${BOOT_DIR}/overlays"
|
|
|
|
|
|
# Ensure the proper .dtb is located
|
|
|
if [ "$KERNEL_ARCH" = "arm" ] ; then
|
|
|
for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb ; do
|
|
|
if [ -f "${dtb}" ] ; then
|
|
|
install_readonly "${dtb}" "${BOOT_DIR}/"
|
|
|
fi
|
|
|
done
|
|
|
else
|
|
|
for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/broadcom/"*.dtb ; do
|
|
|
if [ -f "${dtb}" ] ; then
|
|
|
install_readonly "${dtb}" "${BOOT_DIR}/"
|
|
|
fi
|
|
|
done
|
|
|
fi
|
|
|
|
|
|
# Copy compiled dtb device tree files
|
|
|
if [ -d "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays" ] ; then
|
|
|
for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtbo ; do
|
|
|
if [ -f "${dtb}" ] ; then
|
|
|
install_readonly "${dtb}" "${BOOT_DIR}/overlays/"
|
|
|
fi
|
|
|
done
|
|
|
|
|
|
if [ -f "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" ] ; then
|
|
|
install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
if [ "$ENABLE_UBOOT" = false ] ; then
|
|
|
# Convert and copy kernel image to the boot directory
|
|
|
"${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
|
|
|
else
|
|
|
# Copy kernel image to the boot directory
|
|
|
install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
|
|
|
fi
|
|
|
|
|
|
# Remove kernel sources
|
|
|
if [ "$KERNEL_REMOVESRC" = true ] ; then
|
|
|
rm -fr "${KERNEL_DIR}"
|
|
|
else
|
|
|
# Prepare compiled kernel modules
|
|
|
if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
|
|
|
if grep -q "^modules_prepare:" "${KERNEL_DIR}/Makefile" ; then
|
|
|
make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare
|
|
|
fi
|
|
|
|
|
|
# Create symlinks for kernel modules
|
|
|
chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/build"
|
|
|
chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/source"
|
|
|
fi
|
|
|
fi
|
|
|
|
|
|
else # BUILD_KERNEL=false
|
|
|
if [ "$SET_ARCH" = 64 ] && { [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; } ; then
|
|
|
|
|
|
# Use Sakakis modified kernel if ZSWAP is active
|
|
|
if [ "$KERNEL_ZSWAP" = true ] || [ "$KERNEL_VIRT" = true ] || [ "$KERNEL_NF" = true ] || [ "$KERNEL_BPF" = true ] ; then
|
|
|
RPI3_64_KERNEL_URL="${RPI3_64_BIS_KERNEL_URL}"
|
|
|
fi
|
|
|
|
|
|
# Create temporary directory for dl
|
|
|
temp_dir=$(as_nobody mktemp -d)
|
|
|
|
|
|
# Fetch kernel dl
|
|
|
as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI3_64_KERNEL_URL"
|
|
|
|
|
|
#extract download
|
|
|
tar -xJf "${temp_dir}"/kernel.tar.xz -C "${temp_dir}"
|
|
|
|
|
|
#move extracted kernel to /boot/firmware
|
|
|
mkdir "${R}/boot/firmware"
|
|
|
cp "${temp_dir}"/boot/* "${R}"/boot/firmware/
|
|
|
cp -r "${temp_dir}"/lib/* "${R}"/lib/
|
|
|
|
|
|
# Remove temporary directory for kernel sources
|
|
|
rm -fr "${temp_dir}"
|
|
|
|
|
|
# Set permissions of the kernel sources
|
|
|
chown -R root:root "${R}/boot/firmware"
|
|
|
chown -R root:root "${R}/lib/modules"
|
|
|
fi
|
|
|
|
|
|
# Install Kernel from hypriot comptabile with all Raspberry PI
|
|
|
if [ "$SET_ARCH" = 32 ] ; then
|
|
|
# Create temporary directory for dl
|
|
|
temp_dir=$(as_nobody mktemp -d)
|
|
|
|
|
|
# Fetch kernel
|
|
|
as_nobody wget -O "${temp_dir}"/kernel.deb -c "$RPI_32_KERNEL_URL"
|
|
|
|
|
|
# Copy downloaded U-Boot sources
|
|
|
mv "${temp_dir}"/kernel.deb "${R}"/tmp/kernel.deb
|
|
|
|
|
|
# Set permissions
|
|
|
chown -R root:root "${R}"/tmp/kernel.deb
|
|
|
|
|
|
# Install kernel
|
|
|
chroot_exec dpkg -i /tmp/kernel.deb
|
|
|
|
|
|
# move /boot to /boot/firmware to fit script env.
|
|
|
#mkdir "${BOOT_DIR}"
|
|
|
mkdir "${temp_dir}"/firmware
|
|
|
mv "${R}"/boot/* "${temp_dir}"/firmware/
|
|
|
mv "${temp_dir}"/firmware "${R}"/boot/
|
|
|
|
|
|
#same for kernel headers
|
|
|
if [ "$KERNEL_HEADERS" = true ] ; then
|
|
|
# Fetch kernel header
|
|
|
as_nobody wget -O "${temp_dir}"/kernel-header.deb -c "$RPI_32_KERNELHEADER_URL"
|
|
|
mv "${temp_dir}"/kernel-header.deb "${R}"/tmp/kernel-header.deb
|
|
|
chown -R root:root "${R}"/tmp/kernel-header.deb
|
|
|
# Install kernel header
|
|
|
chroot_exec dpkg -i /tmp/kernel-header.deb
|
|
|
rm -f "${R}"/tmp/kernel-header.deb
|
|
|
fi
|
|
|
|
|
|
# Remove temporary directory and files
|
|
|
rm -fr "${temp_dir}"
|
|
|
rm -f "${R}"/tmp/kernel.deb
|
|
|
fi
|
|
|
|
|
|
# Check if kernel installation was successful
|
|
|
KERNEL="$(ls -1 "${R}"/boot/firmware/kernel* | sort | tail -n 1)"
|
|
|
if [ -z "$KERNEL" ] ; then
|
|
|
echo "error: kernel installation failed! (/boot/kernel* not found)"
|
|
|
cleanup
|
|
|
exit 1
|
|
|
fi
|
|
|
fi
|
|
|
|
