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8174853c78
Verify ucert signature chains in sysupgrade images in case ucert is installed and $CHECK_IMAGE_SIGNARURE = 1. Also make sure ucert host binary is present and generate a self-signed ucert in case $TOPDIR/key-build.ucert is missing. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
65 lines
1.4 KiB
Bash
65 lines
1.4 KiB
Bash
fwtool_check_signature() {
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[ $# -gt 1 ] && return 1
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[ ! -x /usr/bin/ucert ] && {
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if [ "$REQUIRE_IMAGE_SIGNATURE" = 1 ]; then
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return 1
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else
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return 0
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fi
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}
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if ! fwtool -q -t -s /tmp/sysupgrade.ucert "$1"; then
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echo "Image signature not found"
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[ "$REQUIRE_IMAGE_SIGNATURE" = 1 -a "$FORCE" != 1 ] && {
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echo "Use sysupgrade -F to override this check when downgrading or flashing to vendor firmware"
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}
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[ "$REQUIRE_IMAGE_SIGNATURE" = 1 ] && return 1
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return 0
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fi
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ucert -V -m "$1" -c "/tmp/sysupgrade.ucert" -P /etc/opkg/keys
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return $?
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}
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fwtool_check_image() {
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[ $# -gt 1 ] && return 1
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. /usr/share/libubox/jshn.sh
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if ! fwtool -q -i /tmp/sysupgrade.meta "$1"; then
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echo "Image metadata not found"
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[ "$REQUIRE_IMAGE_METADATA" = 1 -a "$FORCE" != 1 ] && {
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echo "Use sysupgrade -F to override this check when downgrading or flashing to vendor firmware"
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}
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[ "$REQUIRE_IMAGE_METADATA" = 1 ] && return 1
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return 0
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fi
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json_load "$(cat /tmp/sysupgrade.meta)" || {
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echo "Invalid image metadata"
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return 1
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}
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device="$(cat /tmp/sysinfo/board_name)"
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json_select supported_devices || return 1
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json_get_keys dev_keys
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for k in $dev_keys; do
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json_get_var dev "$k"
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[ "$dev" = "$device" ] && return 0
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done
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echo "Device $device not supported by this image"
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echo -n "Supported devices:"
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for k in $dev_keys; do
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json_get_var dev "$k"
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echo -n " $dev"
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done
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echo
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return 1
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}
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