add unzip in dockerfile

scripts/tails-patch.sh

@@ -0,0 +1,167 @@
+#!/usr/bin/bash
+
+# ... break=init
+# ... debug
+#
+# sudo unsquashfs -d /tmp/test -f /srv/nfs/tails-x64/live/filesystem.squashfs
+# $ ls  /tmp/test/bin/live-*
+# $ ls -r /tmp/test/lib/live/*
+
+# 2023-09-11 skip network de-init on boot option "break=init" to keep network alive for debugging
+# 2021-11-07 /conf/net_drivers.tar.xz, /conf/conf.d/9999-hotfix-pxe, /etc/live/boot/9999-hotfix-pxe
+
+# requires:
+#   squashfs-tools  (unsquashfs)
+#   initramfs-tools (cpio)
+#   xz-utils        (xz)
+
+# location, where to store temporary files
+TMP=/tmp/tails-net
+
+# full filename of the filesystem.squashfs from tails ISO
+SRC=/srv/nfs/tails-x64/live/filesystem.squashfs
+
+# full filename of the hotfix-pxe image
+DST=/srv/nfs/tails-x64-hotfix-pxe.cpio.xz
+
+
+if [[ -z "${TMP}" ]] || [[ -z "${SRC}" ]] || [[ -z "${DST}" ]]; then
+    echo "ERROR: undefined variable"
+    exit -1
+fi
+
+if ! [[ -d "$(dirname ${TMP:?})" ]] && ! [[ -r "${SRC:?}" ]] && ! [[ -d "$(dirname ${DST:?})" ]]; then
+    echo "ERROR: wrong file or folder"
+    exit -2
+fi
+
+
+# kernel version of tails
+KVER=$(basename $(unsquashfs -l "${SRC:?}" -e /lib/modules/ | grep /lib/modules/ | head -n 1))
+(( $? != 0 )) && exit -4
+
+# test if kernel version is correct
+if [[ -n "${KVER}" ]]; then
+    echo "INFO: KVER='${KVER:?}'"
+else
+    echo "ERROR: unknown kernel version"
+    exit -3
+fi
+
+do_modules() {
+# extract missing network kernel drivers modules from tails
+sudo unsquashfs \
+    -d "${TMP:?}" \
+    -f "${SRC:?}" \
+    -e "/lib/modules/${KVER:?}/kernel/drivers/net/phy" \
+    -e "/lib/modules/${KVER:?}/kernel/drivers/net/ethernet" \
+    ;
+(( $? != 0 )) && exit -4
+
+# compress missing network kernel drivers modules to file
+[[ -e "${TMP:?}/conf/" ]] || sudo mkdir -p "${TMP:?}/conf/"
+sudo tar -ravf "${TMP:?}/conf/net_drivers.tar.xz" -C "${TMP:?}"  "lib"
+sudo rm -rf "${TMP:?}/lib"
+}
+
+
+do_patch_top() {
+# add hotfix for pxe boot to initrd image
+[[ -e "${TMP:?}/conf/conf.d/" ]] || sudo mkdir -p "${TMP:?}/conf/conf.d/"
+cat << EOF | sudo tee "${TMP:?}/conf/conf.d/9999-hotfix-pxe" &>/dev/null
+#!/usr/bin/sh
+
+# check if we dealing with same kernel version
+if [ "\$(uname -r)" != "${KVER:?}" ]; then
+    . /scripts/functions
+    log_failure_msg "wrong kernel version. '\$(uname -r)'!='${KVER:?}'"
+    panic "please visit: https://github.com/beta-tester/RPi-PXE-Server/issues/31"
+fi
+
+# comment out all blacklist entries
+sed "s/^install/# install/g" -i /etc/modprobe.d/all-net-blacklist.conf
+
+# replace wget script by busybox, for normal behavior
+mv /usr/bin/wget /usr/bin/wget.bak
+ln -sf /usr/bin/busybox /usr/bin/wget
+
+# replace depmod, for normal behavior
+mv /usr/sbin/depmod /usr/sbin/depmod.bak
+ln -sf /usr/bin/kmod /usr/sbin/depmod
+
+# excract the compressed drivers in place
+tar -xf "/conf/net_drivers.tar.xz" -C /usr/
+
+# rebulid dependencies for added network kernel drivers modules
+depmod -b /usr
+EOF
+(( $? != 0 )) && exit -4
+sudo chmod +x "${TMP:?}/conf/conf.d/9999-hotfix-pxe"
+(( $? != 0 )) && exit -4
+}
+
+do_patch_bottom() {
+[[ -e "${TMP:?}/etc/live/boot/" ]] || sudo mkdir -p "${TMP:?}/etc/live/boot/"
+cat << EOF | sudo tee "${TMP:?}/etc/live/boot/9999-hotfix-pxe" &>/dev/null
+#!/usr/bin/sh
+
+local_bottom ()
+{
+    if ! [ -n "\$break" ]; then
+        # hotfix-pxe for issue with network initialisation in tails
+        local path_device
+        for path_device in /sys/class/net/*; do
+            local name_device
+            name_device=\$(basename \$path_device)
+            if [ "\$name_device" != "lo" ]; then
+                # set network devices down
+                ip link set \$name_device down
+
+                local path_module
+                path_module=\$(readlink \$path_device/device/driver/module)
+                if [ -n "\$path_module" ]; then
+                    # remove used network drivers
+                    local name_module
+                    name_module=\$(basename \$path_module)
+                    modprobe -r \$name_module
+                fi
+            fi
+        done
+    fi
+}
+EOF
+(( $? != 0 )) && exit -4
+sudo chmod +x "${TMP:?}/etc/live/boot/9999-hotfix-pxe"
+(( $? != 0 )) && exit -4
+}
+
+
+do_initrd() {
+# create an initrd image to overlay at boot time
+sudo rm "${DST:?}"
+cd "${TMP:?}"
+(( $? != 0 )) && exit -4
+find . -type f -print0 | cpio --null --create --verbose --format=newc \
+    | xz --compress --extreme --check=crc32 | sudo tee "${DST:?}" &>/dev/null
+(( $? != 0 )) && exit -4
+cd -
+}
+
+
+do_cleanup() {
+# clean up temporary files
+sudo rm -rf "${TMP:?}"
+(( $? != 0 )) && exit -4
+}
+
+
+do_modules
+do_patch_top
+do_patch_bottom
+
+do_initrd
+
+do_cleanup
+
+
+echo done.