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@ -6,6 +6,10 @@ get_magic_long_at() { |
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dd if="$1" skip=$2 bs=1 count=4 2>/dev/null | hexdump -v -e '1/1 "%02x"' |
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} |
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platform_machine() { |
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cat /proc/device-tree/compatible | tr '\0' '\t' | cut -f 1 |
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} |
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platform_flash_type() { |
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# On NAND devices "rootfs" is UBI volume, so won't be find in /proc/mtd |
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grep -q "\"rootfs\"" /proc/mtd && { |
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@ -16,6 +20,16 @@ platform_flash_type() { |
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echo "nand" |
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} |
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platform_expected_image() { |
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local machine=$(platform_machine) |
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case "$machine" in |
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"netgear,r6250v1") echo "chk U12H245T00_NETGEAR"; return;; |
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"netgear,r6300v2") echo "chk U12H240T00_NETGEAR"; return;; |
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"netgear,r8000") echo "chk U12H315T00_NETGEAR"; return;; |
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esac |
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} |
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platform_identify() { |
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local magic |
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@ -49,14 +63,21 @@ platform_check_image() { |
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} |
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local file_type=$(platform_identify "$1") |
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local magic |
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case "$file_type" in |
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"chk") |
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local header_len=$((0x$(get_magic_long_at "$1" 4))) |
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local board_id_len=$(($header_len - 40)) |
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local board_id=$(dd if="$1" skip=40 bs=1 count=$board_id_len 2>/dev/null | hexdump -v -e '1/1 "%c"') |
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local dev_board_id=$(platform_expected_image) |
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echo "Found CHK image with device board_id $board_id" |
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[ -n "$dev_board_id" -a "chk $board_id" != "$dev_board_id" ] && { |
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echo "Firmware board_id doesn't match device board_id ($dev_board_id)" |
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return 1 |
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} |
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magic=$(get_magic_long_at "$1" "$header_len") |
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[ "$magic" != "48445230" ] && { |
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echo "No valid TRX firmware in the CHK image" |
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@ -66,8 +87,14 @@ platform_check_image() { |
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return 0 |
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;; |
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"cybertan") |
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local magic=$(dd if="$1" bs=1 count=4 2>/dev/null | hexdump -v -e '1/1 "%c"') |
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echo "Found CyberTAN image with device magic: $magic" |
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local pattern=$(dd if="$1" bs=1 count=4 2>/dev/null | hexdump -v -e '1/1 "%c"') |
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local dev_pattern=$(platform_expected_image) |
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echo "Found CyberTAN image with device pattern: $pattern" |
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[ -n "$dev_pattern" -a "cybertan $pattern" != "$dev_pattern" ] && { |
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echo "Firmware pattern doesn't match device pattern ($dev_pattern)" |
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return 1 |
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} |
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magic=$(get_magic_long_at "$1" 32) |
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[ "$magic" != "48445230" ] && { |
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