412 lines
10 KiB
Bash
412 lines
10 KiB
Bash
RAMFS_COPY_BIN='osafeloader oseama otrx truncate'
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PART_NAME=firmware
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BCM53XX_FW_FORMAT=
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BCM53XX_FW_BOARD_ID=
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BCM53XX_FW_INT_IMG_FORMAT=
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BCM53XX_FW_INT_IMG_TRX_OFFSET=
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BCM53XX_FW_INT_IMG_EXTRACT_CMD=
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LXL_FLAGS_VENDOR_LUXUL=0x00000001
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# $(1): file to read magic from
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# $(2): offset in bytes
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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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# $(1): file to read LE long number from
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# $(2): offset in bytes
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get_le_long_at() {
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echo $((0x$(dd if="$1" skip=$2 bs=1 count=4 2>/dev/null | hexdump -v -e '1/4 "%02x"')))
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}
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platform_flash_type() {
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# On NAND devices "rootfs" is UBI volume, so won't be find in /proc/mtd
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grep -q "\"rootfs\"" /proc/mtd && {
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echo "serial"
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return
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}
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echo "nand"
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}
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platform_expected_image() {
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local machine=$(board_name)
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case "$machine" in
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"dlink,dir-885l") echo "seamaseal wrgac42_dlink.2015_dir885l"; return;;
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"luxul,abr-4500-v1") echo "lxl ABR-4500"; return;;
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"luxul,xap-810-v1") echo "lxl XAP-810"; return;;
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"luxul,xap-1410v1") echo "lxl XAP-1410"; return;;
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"luxul,xap-1440-v1") echo "lxl XAP-1440"; return;;
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"luxul,xap-1510v1") echo "lxl XAP-1510"; return;;
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"luxul,xap-1610-v1") echo "lxl XAP-1610"; return;;
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"luxul,xbr-4500-v1") echo "lxl XBR-4500"; return;;
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"luxul,xwc-1000") echo "lxl XWC-1000"; return;;
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"luxul,xwc-2000-v1") echo "lxl XWC-2000"; return;;
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"luxul,xwr-1200v1") echo "lxl XWR-1200"; return;;
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"luxul,xwr-3100v1") echo "lxl XWR-3100"; return;;
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"luxul,xwr-3150-v1") echo "lxl XWR-3150"; return;;
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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,r7000") echo "chk U12H270T00_NETGEAR"; return;;
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"netgear,r7900") echo "chk U12H315T30_NETGEAR"; return;;
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"netgear,r8000") echo "chk U12H315T00_NETGEAR"; return;;
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"netgear,r8500") echo "chk U12H334T00_NETGEAR"; return;;
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"tplink,archer-c9-v1") echo "safeloader"; 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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magic=$(get_magic_long "$1")
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case "$magic" in
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"48445230")
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BCM53XX_FW_FORMAT="trx"
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return
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;;
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"2a23245e")
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local header_len=$((0x$(get_magic_long_at "$1" 4)))
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local board_id_len=$(($header_len - 40))
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BCM53XX_FW_FORMAT="chk"
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BCM53XX_FW_BOARD_ID=$(dd if="$1" skip=40 bs=1 count=$board_id_len 2>/dev/null | hexdump -v -e '1/1 "%c"')
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BCM53XX_FW_INT_IMG_FORMAT="trx"
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BCM53XX_FW_INT_IMG_TRX_OFFSET="$header_len"
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BCM53XX_FW_INT_IMG_EXTRACT_CMD="dd skip=$header_len iflag=skip_bytes"
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return
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;;
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"4c584c23")
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local hdr_len=$(get_le_long_at "$1" 8)
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local flags=$(get_le_long_at "$1" 12)
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[ $((flags & LXL_FLAGS_VENDOR_LUXUL)) -gt 0 ] && notify_firmware_no_backup
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BCM53XX_FW_FORMAT="lxl"
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BCM53XX_FW_BOARD_ID=$(dd if="$1" skip=16 bs=1 count=16 2>/dev/null | hexdump -v -e '1/1 "%c"')
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BCM53XX_FW_INT_IMG_FORMAT="trx"
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BCM53XX_FW_INT_IMG_TRX_OFFSET="$hdr_len"
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BCM53XX_FW_INT_IMG_EXTRACT_CMD="dd skip=$hdr_len iflag=skip_bytes"
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return
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;;
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"5ea3a417")
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BCM53XX_FW_FORMAT="seamaseal"
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BCM53XX_FW_BOARD_ID=$(oseama info "$1" | grep "Meta entry:.*signature=" | sed "s/.*=//")
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BCM53XX_FW_INT_IMG_EXTRACT_CMD="oseama extract - -e 0"
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return
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;;
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esac
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magic=$(get_magic_long_at "$1" 14)
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[ "$magic" = "55324e44" ] && {
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BCM53XX_FW_FORMAT="cybertan"
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BCM53XX_FW_BOARD_ID=$(dd if="$1" bs=1 count=4 2>/dev/null | hexdump -v -e '1/1 "%c"')
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BCM53XX_FW_INT_IMG_FORMAT="trx"
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BCM53XX_FW_INT_IMG_TRX_OFFSET="32"
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BCM53XX_FW_INT_IMG_EXTRACT_CMD="dd skip=32 iflag=skip_bytes"
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return
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}
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magic=$(get_magic_long_at "$1" 60)
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[ "$magic" = "4c584c23" ] && {
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notify_firmware_no_backup
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BCM53XX_FW_FORMAT="lxlold"
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BCM53XX_FW_BOARD_ID=$(dd if="$1" skip=48 bs=1 count=12 2>/dev/null | hexdump -v -e '1/1 "%c"')
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BCM53XX_FW_INT_IMG_FORMAT="trx"
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BCM53XX_FW_INT_IMG_TRX_OFFSET="64"
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BCM53XX_FW_INT_IMG_EXTRACT_CMD="dd skip=64 iflag=skip_bytes"
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return
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}
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if osafeloader info "$1" > /dev/null 2>&1; then
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BCM53XX_FW_FORMAT="safeloader"
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return
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fi
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}
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platform_other_check_image() {
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[ "$#" -gt 1 ] && return 1
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local error=0
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platform_identify "$1"
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[ -z "$BCM53XX_FW_FORMAT" ] && {
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echo "Invalid image type. Please use firmware specific for this device."
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notify_firmware_broken
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return 1
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}
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echo "Found $BCM53XX_FW_FORMAT firmware for device $BCM53XX_FW_BOARD_ID"
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local expected_image="$(platform_expected_image)"
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[ -n "$expected_image" -a -n "$BCM53XX_FW_BOARD_ID" -a "$expected_image" != "$BCM53XX_FW_FORMAT $BCM53XX_FW_BOARD_ID" ] && {
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echo "Firmware doesn't match device ($expected_image)"
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error=1
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}
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case "$BCM53XX_FW_FORMAT" in
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"seamaseal")
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$(oseama info "$1" -e 0 | grep -q "Meta entry:.*type=firmware") || {
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echo "Seama seal doesn't contain firmware entity"
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error=1
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}
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;;
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"trx")
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if ! otrx check "$1"; then
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echo "Failed to find a valid TRX in firmware"
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notify_firmware_test_result "trx_valid" 0
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error=1
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else
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notify_firmware_test_result "trx_valid" 1
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fi
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[ "$expected_image" == "safeloader" ] && {
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echo "This device expects SafeLoader format and may not work with TRX"
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error=1
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}
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;;
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*)
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case "$BCM53XX_FW_INT_IMG_FORMAT" in
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"trx")
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# Make sure that both ways of extracting TRX work.
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# platform_do_upgrade() may use any of them.
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if ! otrx check "$1" -o "$BCM53XX_FW_INT_IMG_TRX_OFFSET" || \
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! $BCM53XX_FW_INT_IMG_EXTRACT_CMD < $1 | otrx check -; then
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echo "Invalid (corrupted?) TRX firmware"
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notify_firmware_test_result "trx_valid" 0
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error=1
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else
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notify_firmware_test_result "trx_valid" 1
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fi
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;;
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esac
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;;
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esac
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return $error
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}
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platform_check_image() {
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case "$(board_name)" in
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meraki,mr32)
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# Ideally, REQUIRE_IMAGE_METADATA=1 would suffice
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# but this would require converting all other
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# devices too.
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nand_do_platform_check meraki-mr32 "$1"
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return $?
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;;
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*)
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platform_other_check_image "$1"
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return $?
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;;
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esac
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return 1
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}
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# $(1): TRX image or firmware containing TRX
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# $(2): offset of TRX in firmware (optional)
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platform_do_upgrade_nand_trx() {
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local dir="/tmp/sysupgrade-bcm53xx"
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local trx="$1"
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local offset="$2"
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# Extract partitions from trx
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rm -fR $dir
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mkdir -p $dir
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otrx extract "$trx" \
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${offset:+-o $offset} \
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-1 $dir/kernel \
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-2 $dir/root
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[ $? -ne 0 ] && {
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echo "Failed to extract TRX partitions."
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return
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}
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# Firmwares without UBI image should be flashed "normally"
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local root_type=$(identify $dir/root)
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[ "$root_type" != "ubi" ] && {
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echo "Provided firmware doesn't use UBI for rootfs."
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return
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}
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# Prepare TRX file with just a kernel that will replace current one
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local linux_length=$(grep "\"linux\"" /proc/mtd | sed "s/mtd[0-9]*:[ \t]*\([^ \t]*\).*/\1/")
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[ -z "$linux_length" ] && {
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echo "Unable to find \"linux\" partition size"
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exit 1
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}
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linux_length=$((0x$linux_length))
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local kernel_length=$(wc -c $dir/kernel | cut -d ' ' -f 1)
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[ $kernel_length -gt $linux_length ] && {
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echo "New kernel doesn't fit \"linux\" partition."
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return
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}
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rm -f /tmp/null.bin
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rm -f /tmp/kernel.trx
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touch /tmp/null.bin
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otrx create /tmp/kernel.trx \
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-f $dir/kernel -b $(($linux_length + 28)) \
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-f /tmp/null.bin
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[ $? -ne 0 ] && {
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echo "Failed to create simple TRX with new kernel."
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return
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}
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# Prepare UBI image (drop unwanted extra blocks)
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local ubi_length=0
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while [ "$(dd if=$dir/root skip=$ubi_length bs=1 count=4 2>/dev/null)" = "UBI#" ]; do
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ubi_length=$(($ubi_length + 131072))
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done
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truncate -s $ubi_length $dir/root
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[ $? -ne 0 ] && {
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echo "Failed to prepare new UBI image."
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return
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}
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# Flash
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mtd write /tmp/kernel.trx firmware || exit 1
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nand_do_upgrade $dir/root
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}
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platform_do_upgrade_nand_seamaseal() {
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local dir="/tmp/sysupgrade-bcm53xx"
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local seamaseal="$1"
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local tmp
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# Extract Seama entity from Seama seal
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rm -fR $dir
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mkdir -p $dir
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oseama extract "$seamaseal" \
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-e 0 \
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-o $dir/seama.entity
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[ $? -ne 0 ] && {
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echo "Failed to extract Seama entity."
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return
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}
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local entity_size=$(wc -c $dir/seama.entity | cut -d ' ' -f 1)
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local ubi_offset=0
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tmp=0
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while [ 1 ]; do
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[ $tmp -ge $entity_size ] && break
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[ "$(dd if=$dir/seama.entity skip=$tmp bs=1 count=4 2>/dev/null)" = "UBI#" ] && {
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ubi_offset=$tmp
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break
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}
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tmp=$(($tmp + 131072))
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done
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[ $ubi_offset -eq 0 ] && {
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echo "Failed to find UBI in Seama entity."
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return
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}
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local ubi_length=0
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while [ "$(dd if=$dir/seama.entity skip=$(($ubi_offset + $ubi_length)) bs=1 count=4 2>/dev/null)" = "UBI#" ]; do
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ubi_length=$(($ubi_length + 131072))
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done
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dd if=$dir/seama.entity of=$dir/kernel.seama bs=131072 count=$(($ubi_offset / 131072)) 2>/dev/null
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dd if=$dir/seama.entity of=$dir/root.ubi bs=131072 skip=$(($ubi_offset / 131072)) count=$(($ubi_length / 131072)) 2>/dev/null
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# Flash
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local kernel_size=$(sed -n 's/mtd[0-9]*: \([0-9a-f]*\).*"\(kernel\|linux\)".*/\1/p' /proc/mtd)
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mtd write $dir/kernel.seama firmware || exit 1
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mtd ${kernel_size:+-c 0x$kernel_size} fixseama firmware
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nand_do_upgrade $dir/root.ubi
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}
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platform_img_from_safeloader() {
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local dir="/tmp/sysupgrade-bcm53xx"
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# Extract partitions from SafeLoader
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rm -fR $dir
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mkdir -p $dir
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osafeloader extract "$1" \
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-p "os-image" \
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-o $dir/os-image
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osafeloader extract "$1" \
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-p "file-system" \
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-o $dir/file-system
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mtd write $dir/file-system rootfs
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echo -n $dir/os-image
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}
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platform_other_do_upgrade() {
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platform_identify "$1"
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[ "$(platform_flash_type)" == "nand" ] && {
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# Try NAND-aware upgrade
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case "$BCM53XX_FW_FORMAT" in
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"seamaseal")
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platform_do_upgrade_nand_seamaseal "$1"
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;;
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"trx")
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platform_do_upgrade_nand_trx "$1"
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;;
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*)
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case "$BCM53XX_FW_INT_IMG_FORMAT" in
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"trx")
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platform_do_upgrade_nand_trx "$1" "$BCM53XX_FW_INT_IMG_TRX_OFFSET"
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;;
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*)
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echo "NAND aware sysupgrade is unsupported for $BCM53XX_FW_FORMAT format"
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;;
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esac
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;;
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esac
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# Above calls exit on success.
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# If we got here something went wrong.
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echo "Writing whole image to NAND flash. All erase counters will be lost."
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}
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case "$BCM53XX_FW_FORMAT" in
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"safeloader")
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PART_NAME=os-image
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img=$(platform_img_from_safeloader "$1")
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default_do_upgrade "$img"
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;;
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"seamaseal")
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default_do_upgrade "$1" "$BCM53XX_FW_INT_IMG_EXTRACT_CMD"
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;;
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"trx")
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default_do_upgrade "$1"
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;;
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*)
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case "$BCM53XX_FW_INT_IMG_FORMAT" in
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"trx")
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default_do_upgrade "$1" "$BCM53XX_FW_INT_IMG_EXTRACT_CMD"
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;;
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esac
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;;
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esac
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}
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platform_do_upgrade() {
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case "$(board_name)" in
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meraki,mr32)
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CI_KERNPART="part.safe"
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nand_do_upgrade "$1"
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;;
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*)
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platform_other_do_upgrade "$1"
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;;
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esac
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}
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platform_nand_pre_upgrade() {
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case "$(board_name)" in
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meraki,mr32)
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CI_KERNPART="part.safe"
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;;
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esac
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}
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