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https://github.com/vyos/vyos-build.git
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d235b31a09
The shim review board (which is the secure boot base loader) recommends using ephemeral keys when signing the Linux Kernel. This commit enables the Kernel build system to generate a one-time ephemeral key that is used to: * sign all build-in Kernel modules * sign all other out-of-tree Kernel modules The key lives in /tmp and is destroyed after the build container exits and is named: "VyOS build time autogenerated kernel key". In addition the Kernel now uses CONFIG_MODULE_SIG_FORCE. This now makes it unable to load any Kernel Module to the image that is NOT signed by the ephemeral key.
40 lines
1.0 KiB
Bash
Executable File
40 lines
1.0 KiB
Bash
Executable File
#!/bin/sh
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CWD=$(pwd)
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KERNEL_VAR_FILE=${CWD}/kernel-vars
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SRC=${CWD}/ovpn-dco
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if [ ! -d ${SRC} ]; then
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echo "OpenVPN DCO source not found"
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exit 1
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fi
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if [ ! -f ${KERNEL_VAR_FILE} ]; then
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echo "Kernel variable file '${KERNEL_VAR_FILE}' does not exist, run ./build_kernel.sh first"
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exit 1
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fi
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. ${KERNEL_VAR_FILE}
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cd ${SRC}
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git reset --hard HEAD
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git clean --force -d -x
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make KERNEL_SRC=$KERNEL_DIR
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# Copy binary to package directory
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DEBIAN_DIR=tmp/lib/modules/${KERNEL_VERSION}${KERNEL_SUFFIX}/extra
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mkdir -p ${DEBIAN_DIR}
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cp drivers/net/ovpn-dco/ovpn-dco-v2.ko ${DEBIAN_DIR}
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# Sign generated Kernel modules
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${CWD}/sign-modules.sh ${DEBIAN_DIR}
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# Build Debian Package
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fpm --input-type dir --output-type deb --name openvpn-dco \
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--version $(git describe | sed s/^v//) --deb-compression gz \
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--maintainer "VyOS Package Maintainers <maintainers@vyos.net>" \
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--description "OpenVPN Data Channel Offload" \
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--depends linux-image-${KERNEL_VERSION}${KERNEL_SUFFIX} \
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--license "GPL2" --chdir tmp
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mv *.deb ..
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