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git://git.yoctoproject.org/poky.git
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5a0f3b18b2
sanitize fitImage hash algorithm selection with FIT_HASH_ALG switch default hash algorithm from sha1 to sha256 (From OE-Core rev: 8c9d5d59cb1575fac17c461090937df4cbb3d3b5) Signed-off-by: Ayoub Zaki <ayoub.zaki@embexus.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
546 lines
14 KiB
Plaintext
546 lines
14 KiB
Plaintext
inherit kernel-uboot kernel-artifact-names uboot-sign
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python __anonymous () {
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kerneltypes = d.getVar('KERNEL_IMAGETYPES') or ""
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if 'fitImage' in kerneltypes.split():
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depends = d.getVar("DEPENDS")
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depends = "%s u-boot-tools-native dtc-native" % depends
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d.setVar("DEPENDS", depends)
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uarch = d.getVar("UBOOT_ARCH")
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if uarch == "arm64":
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replacementtype = "Image"
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elif uarch == "riscv":
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replacementtype = "Image"
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elif uarch == "mips":
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replacementtype = "vmlinuz.bin"
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elif uarch == "x86":
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replacementtype = "bzImage"
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elif uarch == "microblaze":
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replacementtype = "linux.bin"
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else:
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replacementtype = "zImage"
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# Override KERNEL_IMAGETYPE_FOR_MAKE variable, which is internal
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# to kernel.bbclass . We have to override it, since we pack zImage
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# (at least for now) into the fitImage .
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typeformake = d.getVar("KERNEL_IMAGETYPE_FOR_MAKE") or ""
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if 'fitImage' in typeformake.split():
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d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake.replace('fitImage', replacementtype))
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image = d.getVar('INITRAMFS_IMAGE')
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if image:
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d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', ' ${INITRAMFS_IMAGE}:do_image_complete')
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#check if there are any dtb providers
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providerdtb = d.getVar("PREFERRED_PROVIDER_virtual/dtb")
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if providerdtb:
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d.appendVarFlag('do_assemble_fitimage', 'depends', ' virtual/dtb:do_populate_sysroot')
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d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', ' virtual/dtb:do_populate_sysroot')
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d.setVar('EXTERNAL_KERNEL_DEVICETREE', "${RECIPE_SYSROOT}/boot/devicetree")
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# Verified boot will sign the fitImage and append the public key to
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# U-Boot dtb. We ensure the U-Boot dtb is deployed before assembling
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# the fitImage:
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if d.getVar('UBOOT_SIGN_ENABLE') == "1" and d.getVar('UBOOT_DTB_BINARY'):
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uboot_pn = d.getVar('PREFERRED_PROVIDER_u-boot') or 'u-boot'
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d.appendVarFlag('do_assemble_fitimage', 'depends', ' %s:do_populate_sysroot' % uboot_pn)
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}
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# Options for the device tree compiler passed to mkimage '-D' feature:
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UBOOT_MKIMAGE_DTCOPTS ??= ""
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# fitImage Hash Algo
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FIT_HASH_ALG ?= "sha256"
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#
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# Emit the fitImage ITS header
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#
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# $1 ... .its filename
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fitimage_emit_fit_header() {
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cat << EOF >> ${1}
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/dts-v1/;
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/ {
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description = "U-Boot fitImage for ${DISTRO_NAME}/${PV}/${MACHINE}";
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#address-cells = <1>;
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EOF
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}
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#
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# Emit the fitImage section bits
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#
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# $1 ... .its filename
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# $2 ... Section bit type: imagestart - image section start
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# confstart - configuration section start
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# sectend - section end
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# fitend - fitimage end
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#
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fitimage_emit_section_maint() {
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case $2 in
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imagestart)
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cat << EOF >> ${1}
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images {
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EOF
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;;
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confstart)
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cat << EOF >> ${1}
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configurations {
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EOF
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;;
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sectend)
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cat << EOF >> ${1}
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};
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EOF
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;;
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fitend)
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cat << EOF >> ${1}
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};
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EOF
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;;
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esac
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}
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#
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# Emit the fitImage ITS kernel section
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#
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# $1 ... .its filename
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# $2 ... Image counter
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# $3 ... Path to kernel image
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# $4 ... Compression type
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fitimage_emit_section_kernel() {
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kernel_csum="${FIT_HASH_ALG}"
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ENTRYPOINT="${UBOOT_ENTRYPOINT}"
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if [ -n "${UBOOT_ENTRYSYMBOL}" ]; then
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ENTRYPOINT=`${HOST_PREFIX}nm vmlinux | \
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awk '$3=="${UBOOT_ENTRYSYMBOL}" {print "0x"$1;exit}'`
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fi
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cat << EOF >> ${1}
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kernel@${2} {
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description = "Linux kernel";
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data = /incbin/("${3}");
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type = "kernel";
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arch = "${UBOOT_ARCH}";
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os = "linux";
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compression = "${4}";
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load = <${UBOOT_LOADADDRESS}>;
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entry = <${ENTRYPOINT}>;
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hash@1 {
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algo = "${kernel_csum}";
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};
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};
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EOF
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}
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#
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# Emit the fitImage ITS DTB section
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#
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# $1 ... .its filename
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# $2 ... Image counter
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# $3 ... Path to DTB image
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fitimage_emit_section_dtb() {
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dtb_csum="${FIT_HASH_ALG}"
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dtb_loadline=""
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dtb_ext=${DTB##*.}
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if [ "${dtb_ext}" = "dtbo" ]; then
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if [ -n "${UBOOT_DTBO_LOADADDRESS}" ]; then
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dtb_loadline="load = <${UBOOT_DTBO_LOADADDRESS}>;"
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fi
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elif [ -n "${UBOOT_DTB_LOADADDRESS}" ]; then
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dtb_loadline="load = <${UBOOT_DTB_LOADADDRESS}>;"
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fi
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cat << EOF >> ${1}
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fdt@${2} {
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description = "Flattened Device Tree blob";
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data = /incbin/("${3}");
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type = "flat_dt";
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arch = "${UBOOT_ARCH}";
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compression = "none";
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${dtb_loadline}
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hash@1 {
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algo = "${dtb_csum}";
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};
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};
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EOF
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}
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#
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# Emit the fitImage ITS setup section
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#
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# $1 ... .its filename
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# $2 ... Image counter
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# $3 ... Path to setup image
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fitimage_emit_section_setup() {
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setup_csum="${FIT_HASH_ALG}"
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cat << EOF >> ${1}
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setup@${2} {
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description = "Linux setup.bin";
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data = /incbin/("${3}");
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type = "x86_setup";
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arch = "${UBOOT_ARCH}";
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os = "linux";
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compression = "none";
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load = <0x00090000>;
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entry = <0x00090000>;
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hash@1 {
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algo = "${setup_csum}";
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};
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};
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EOF
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}
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#
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# Emit the fitImage ITS ramdisk section
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#
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# $1 ... .its filename
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# $2 ... Image counter
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# $3 ... Path to ramdisk image
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fitimage_emit_section_ramdisk() {
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ramdisk_csum="${FIT_HASH_ALG}"
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ramdisk_ctype="none"
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ramdisk_loadline=""
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ramdisk_entryline=""
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if [ -n "${UBOOT_RD_LOADADDRESS}" ]; then
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ramdisk_loadline="load = <${UBOOT_RD_LOADADDRESS}>;"
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fi
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if [ -n "${UBOOT_RD_ENTRYPOINT}" ]; then
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ramdisk_entryline="entry = <${UBOOT_RD_ENTRYPOINT}>;"
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fi
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case $3 in
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*.gz)
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ramdisk_ctype="gzip"
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;;
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*.bz2)
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ramdisk_ctype="bzip2"
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;;
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*.lzma)
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ramdisk_ctype="lzma"
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;;
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*.lzo)
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ramdisk_ctype="lzo"
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;;
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*.lz4)
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ramdisk_ctype="lz4"
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;;
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esac
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cat << EOF >> ${1}
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ramdisk@${2} {
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description = "${INITRAMFS_IMAGE}";
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data = /incbin/("${3}");
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type = "ramdisk";
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arch = "${UBOOT_ARCH}";
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os = "linux";
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compression = "${ramdisk_ctype}";
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${ramdisk_loadline}
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${ramdisk_entryline}
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hash@1 {
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algo = "${ramdisk_csum}";
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};
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};
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EOF
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}
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#
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# Emit the fitImage ITS configuration section
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#
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# $1 ... .its filename
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# $2 ... Linux kernel ID
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# $3 ... DTB image name
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# $4 ... ramdisk ID
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# $5 ... config ID
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# $6 ... default flag
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fitimage_emit_section_config() {
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conf_csum="${FIT_HASH_ALG}"
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if [ -n "${UBOOT_SIGN_ENABLE}" ] ; then
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conf_sign_keyname="${UBOOT_SIGN_KEYNAME}"
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fi
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# Test if we have any DTBs at all
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sep=""
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conf_desc=""
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kernel_line=""
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fdt_line=""
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ramdisk_line=""
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setup_line=""
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default_line=""
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if [ -n "${2}" ]; then
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conf_desc="Linux kernel"
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sep=", "
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kernel_line="kernel = \"kernel@${2}\";"
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fi
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if [ -n "${3}" ]; then
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conf_desc="${conf_desc}${sep}FDT blob"
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sep=", "
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fdt_line="fdt = \"fdt@${3}\";"
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fi
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if [ -n "${4}" ]; then
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conf_desc="${conf_desc}${sep}ramdisk"
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sep=", "
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ramdisk_line="ramdisk = \"ramdisk@${4}\";"
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fi
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if [ -n "${5}" ]; then
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conf_desc="${conf_desc}${sep}setup"
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setup_line="setup = \"setup@${5}\";"
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fi
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if [ "${6}" = "1" ]; then
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default_line="default = \"conf@${3}\";"
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fi
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cat << EOF >> ${1}
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${default_line}
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conf@${3} {
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description = "${6} ${conf_desc}";
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${kernel_line}
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${fdt_line}
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${ramdisk_line}
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${setup_line}
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hash@1 {
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algo = "${conf_csum}";
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};
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EOF
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if [ ! -z "${conf_sign_keyname}" ] ; then
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sign_line="sign-images = "
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sep=""
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if [ -n "${2}" ]; then
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sign_line="${sign_line}${sep}\"kernel\""
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sep=", "
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fi
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if [ -n "${3}" ]; then
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sign_line="${sign_line}${sep}\"fdt\""
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sep=", "
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fi
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if [ -n "${4}" ]; then
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sign_line="${sign_line}${sep}\"ramdisk\""
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sep=", "
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fi
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if [ -n "${5}" ]; then
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sign_line="${sign_line}${sep}\"setup\""
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fi
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sign_line="${sign_line};"
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cat << EOF >> ${1}
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signature@1 {
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algo = "${conf_csum},rsa2048";
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key-name-hint = "${conf_sign_keyname}";
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${sign_line}
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};
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EOF
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fi
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cat << EOF >> ${1}
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};
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EOF
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}
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#
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# Assemble fitImage
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#
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# $1 ... .its filename
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# $2 ... fitImage name
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# $3 ... include ramdisk
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fitimage_assemble() {
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kernelcount=1
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dtbcount=""
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DTBS=""
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ramdiskcount=${3}
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setupcount=""
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rm -f ${1} arch/${ARCH}/boot/${2}
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fitimage_emit_fit_header ${1}
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#
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# Step 1: Prepare a kernel image section.
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#
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fitimage_emit_section_maint ${1} imagestart
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uboot_prep_kimage
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fitimage_emit_section_kernel ${1} "${kernelcount}" linux.bin "${linux_comp}"
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#
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# Step 2: Prepare a DTB image section
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#
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if [ -z "${EXTERNAL_KERNEL_DEVICETREE}" ] && [ -n "${KERNEL_DEVICETREE}" ]; then
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dtbcount=1
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for DTB in ${KERNEL_DEVICETREE}; do
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if echo ${DTB} | grep -q '/dts/'; then
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bbwarn "${DTB} contains the full path to the the dts file, but only the dtb name should be used."
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DTB=`basename ${DTB} | sed 's,\.dts$,.dtb,g'`
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fi
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DTB_PATH="arch/${ARCH}/boot/dts/${DTB}"
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if [ ! -e "${DTB_PATH}" ]; then
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DTB_PATH="arch/${ARCH}/boot/${DTB}"
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fi
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DTB=$(echo "${DTB}" | tr '/' '_')
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DTBS="${DTBS} ${DTB}"
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fitimage_emit_section_dtb ${1} ${DTB} ${DTB_PATH}
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done
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fi
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if [ -n "${EXTERNAL_KERNEL_DEVICETREE}" ]; then
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dtbcount=1
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for DTBFILE in ${EXTERNAL_KERNEL_DEVICETREE}/*.dtb; do
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DTB=`basename ${DTBFILE}`
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DTB=$(echo "${DTB}" | tr '/' '_')
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DTBS="${DTBS} ${DTB}"
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fitimage_emit_section_dtb ${1} ${DTB} ${DTBFILE}
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done
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fi
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#
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# Step 3: Prepare a setup section. (For x86)
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#
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if [ -e arch/${ARCH}/boot/setup.bin ]; then
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setupcount=1
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fitimage_emit_section_setup ${1} "${setupcount}" arch/${ARCH}/boot/setup.bin
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fi
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#
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# Step 4: Prepare a ramdisk section.
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#
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if [ "x${ramdiskcount}" = "x1" ] ; then
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# Find and use the first initramfs image archive type we find
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for img in cpio.lz4 cpio.lzo cpio.lzma cpio.xz cpio.gz ext2.gz cpio; do
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initramfs_path="${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.${img}"
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echo "Using $initramfs_path"
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if [ -e "${initramfs_path}" ]; then
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fitimage_emit_section_ramdisk ${1} "${ramdiskcount}" "${initramfs_path}"
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break
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fi
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done
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fi
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fitimage_emit_section_maint ${1} sectend
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# Force the first Kernel and DTB in the default config
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kernelcount=1
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if [ -n "${dtbcount}" ]; then
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dtbcount=1
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fi
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#
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# Step 5: Prepare a configurations section
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#
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fitimage_emit_section_maint ${1} confstart
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if [ -n "${DTBS}" ]; then
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i=1
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for DTB in ${DTBS}; do
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dtb_ext=${DTB##*.}
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if [ "${dtb_ext}" = "dtbo" ]; then
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fitimage_emit_section_config ${1} "" "${DTB}" "" "" "`expr ${i} = ${dtbcount}`"
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else
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fitimage_emit_section_config ${1} "${kernelcount}" "${DTB}" "${ramdiskcount}" "${setupcount}" "`expr ${i} = ${dtbcount}`"
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fi
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i=`expr ${i} + 1`
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done
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fi
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fitimage_emit_section_maint ${1} sectend
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fitimage_emit_section_maint ${1} fitend
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#
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# Step 6: Assemble the image
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#
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uboot-mkimage \
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${@'-D "${UBOOT_MKIMAGE_DTCOPTS}"' if len('${UBOOT_MKIMAGE_DTCOPTS}') else ''} \
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-f ${1} \
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arch/${ARCH}/boot/${2}
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#
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# Step 7: Sign the image and add public key to U-Boot dtb
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#
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if [ "x${UBOOT_SIGN_ENABLE}" = "x1" ] ; then
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add_key_to_u_boot=""
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if [ -n "${UBOOT_DTB_BINARY}" ]; then
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# The u-boot.dtb is a symlink to UBOOT_DTB_IMAGE, so we need copy
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# both of them, and don't dereference the symlink.
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cp -P ${STAGING_DATADIR}/u-boot*.dtb ${B}
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add_key_to_u_boot="-K ${B}/${UBOOT_DTB_BINARY}"
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fi
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uboot-mkimage \
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${@'-D "${UBOOT_MKIMAGE_DTCOPTS}"' if len('${UBOOT_MKIMAGE_DTCOPTS}') else ''} \
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-F -k "${UBOOT_SIGN_KEYDIR}" \
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$add_key_to_u_boot \
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-r arch/${ARCH}/boot/${2}
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fi
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}
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do_assemble_fitimage() {
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if echo ${KERNEL_IMAGETYPES} | grep -wq "fitImage"; then
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cd ${B}
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fitimage_assemble fit-image.its fitImage
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fi
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}
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addtask assemble_fitimage before do_install after do_compile
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do_assemble_fitimage_initramfs() {
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if echo ${KERNEL_IMAGETYPES} | grep -wq "fitImage" && \
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test -n "${INITRAMFS_IMAGE}" ; then
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cd ${B}
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fitimage_assemble fit-image-${INITRAMFS_IMAGE}.its fitImage-${INITRAMFS_IMAGE} 1
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fi
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}
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addtask assemble_fitimage_initramfs before do_deploy after do_bundle_initramfs
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kernel_do_deploy[vardepsexclude] = "DATETIME"
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kernel_do_deploy_append() {
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# Update deploy directory
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if echo ${KERNEL_IMAGETYPES} | grep -wq "fitImage"; then
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echo "Copying fit-image.its source file..."
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install -m 0644 ${B}/fit-image.its ${DEPLOYDIR}/fitImage-its-${KERNEL_FIT_NAME}.its
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ln -snf fitImage-its-${KERNEL_FIT_NAME}.its ${DEPLOYDIR}/fitImage-its-${KERNEL_FIT_LINK_NAME}
|
|
|
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echo "Copying linux.bin file..."
|
|
install -m 0644 ${B}/linux.bin ${DEPLOYDIR}/fitImage-linux.bin-${KERNEL_FIT_NAME}.bin
|
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ln -snf fitImage-linux.bin-${KERNEL_FIT_NAME}.bin ${DEPLOYDIR}/fitImage-linux.bin-${KERNEL_FIT_LINK_NAME}
|
|
|
|
if [ -n "${INITRAMFS_IMAGE}" ]; then
|
|
echo "Copying fit-image-${INITRAMFS_IMAGE}.its source file..."
|
|
install -m 0644 ${B}/fit-image-${INITRAMFS_IMAGE}.its ${DEPLOYDIR}/fitImage-its-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.its
|
|
ln -snf fitImage-its-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.its ${DEPLOYDIR}/fitImage-its-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_LINK_NAME}
|
|
|
|
echo "Copying fitImage-${INITRAMFS_IMAGE} file..."
|
|
install -m 0644 ${B}/arch/${ARCH}/boot/fitImage-${INITRAMFS_IMAGE} ${DEPLOYDIR}/fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.bin
|
|
ln -snf fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.bin ${DEPLOYDIR}/fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_LINK_NAME}
|
|
fi
|
|
if [ "${UBOOT_SIGN_ENABLE}" = "1" -a -n "${UBOOT_DTB_BINARY}" ] ; then
|
|
# UBOOT_DTB_IMAGE is a realfile, but we can't use
|
|
# ${UBOOT_DTB_IMAGE} since it contains ${PV} which is aimed
|
|
# for u-boot, but we are in kernel env now.
|
|
install -m 0644 ${B}/u-boot-${MACHINE}*.dtb ${DEPLOYDIR}/
|
|
fi
|
|
fi
|
|
}
|