44 lines
1.5 KiB
Bash
44 lines
1.5 KiB
Bash
platform_check_image() {
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[ "$ARGC" -gt 1 ] && return 1
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case "$(get_magic_word "$1")" in
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# Freifunk .img files
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4646)
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local kern_name=$(dd if="$1" bs=2 skip=5 count=8 2>/dev/null); kern_name="${kern_name%% *}"
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local root_name=$(dd if="$1" bs=2 skip=17 count=8 2>/dev/null); root_name="${root_name%% *}"
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if grep -q '"'$kern_name'"' /proc/mtd && grep -q '"'$root_name'"' /proc/mtd; then
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return 0
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else
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echo "Invalid image. Missing the '$kern_name' or '$root_name' partition"
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return 1
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fi
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;;
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*)
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echo "Invalid image. Use Freifunk .img files on this platform"
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return 1
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;;
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esac
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}
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platform_do_upgrade() {
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local kern_length=$((0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)/65536))
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local kern_name=$(dd if="$1" bs=2 skip=5 count=8 2>/dev/null); kern_name="${kern_name%% *}"
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local root_length=$((0x$(dd if="$1" bs=2 skip=13 count=4 2>/dev/null)/65536))
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local root_name=$(dd if="$1" bs=2 skip=17 count=8 2>/dev/null); root_name="${root_name%% *}"
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if grep -q '"'$kern_name'"' /proc/mtd && grep -q '"'$root_name'"' /proc/mtd; then
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local append=""
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[ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
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if [ -n "$kern_name" -a -n "$root_name" ] && \
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[ ${kern_length:-0} -gt 0 -a ${root_length:-0} -gt ${kern_length:-0} ];
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then
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dd if="$1" bs=65536 skip=1 count=$kern_length 2>/dev/null | \
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mtd -e $kern_name write - $kern_name
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dd if="$1" bs=65536 skip=$((1+$kern_length)) count=$root_length 2>/dev/null | \
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mtd -e $root_name $append write - $root_name
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fi
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fi
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}
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