3 # $(1): file to read magic from
4 # $(2): offset in bytes
6 dd if="$1" skip
=$2 bs
=1 count
=4 2>/dev
/null |
hexdump -v -e '1/1 "%02x"'
10 cat /proc
/device-tree
/compatible |
tr '\0' '\t' | cut
-f 1
13 platform_flash_type
() {
14 # On NAND devices "rootfs" is UBI volume, so won't be find in /proc/mtd
15 grep -q "\"rootfs\"" /proc
/mtd
&& {
23 platform_expected_image
() {
24 local machine
=$
(platform_machine
)
27 "netgear,r6250v1") echo "chk U12H245T00_NETGEAR"; return;;
28 "netgear,r6300v2") echo "chk U12H240T00_NETGEAR"; return;;
29 "netgear,r8000") echo "chk U12H315T00_NETGEAR"; return;;
36 magic
=$
(get_magic_long
"$1")
48 magic
=$
(get_magic_long_at
"$1" 14)
49 [ "$magic" = "55324e44" ] && {
57 platform_check_image
() {
58 [ "$#" -gt 1 ] && return 1
60 [ "$(platform_flash_type)" = "nand" ] && {
61 echo "Firmware upgrade on NAND devices is not implemented."
65 local file_type
=$
(platform_identify
"$1")
71 local header_len
=$
((0x$
(get_magic_long_at
"$1" 4)))
72 local board_id_len
=$
(($header_len - 40))
73 local board_id
=$
(dd if="$1" skip
=40 bs
=1 count
=$board_id_len 2>/dev
/null |
hexdump -v -e '1/1 "%c"')
74 local dev_board_id
=$
(platform_expected_image
)
75 echo "Found CHK image with device board_id $board_id"
77 [ -n "$dev_board_id" -a "chk $board_id" != "$dev_board_id" ] && {
78 echo "Firmware board_id doesn't match device board_id ($dev_board_id)"
82 if ! otrx
-c "$1" -o "$header_len"; then
83 echo "No valid TRX firmware in the CHK image"
88 local pattern
=$
(dd if="$1" bs
=1 count
=4 2>/dev
/null |
hexdump -v -e '1/1 "%c"')
89 local dev_pattern
=$
(platform_expected_image
)
90 echo "Found CyberTAN image with device pattern: $pattern"
92 [ -n "$dev_pattern" -a "cybertan $pattern" != "$dev_pattern" ] && {
93 echo "Firmware pattern doesn't match device pattern ($dev_pattern)"
97 if ! otrx
-c "$1" -o 32; then
98 echo "No valid TRX firmware in the CyberTAN image"
103 if ! otrx
-c "$1"; then
104 echo "Invalid (corrupted?) TRX firmware"
109 echo "Invalid image type. Please use only .trx files"
117 # Extract TRX and use stadard upgrade method
118 platform_do_upgrade_chk
() {
119 local header_len
=$
((0x$
(get_magic_long_at
"$1" 4)))
120 local trx
="/tmp/$1.trx"
122 dd if="$1" of
="$trx" bs
=$header_len skip
=1
124 platform_do_upgrade_trx
"$trx" "$@"
127 # Extract TRX and use stadard upgrade method
128 platform_do_upgrade_cybertan
() {
129 local trx
="/tmp/$1.trx"
131 dd if="$1" of
="$trx" bs
=32 skip
=1
133 platform_do_upgrade_trx
"$trx" "$@"
136 platform_do_upgrade_trx
() {
137 local flash_type
=$
(platform_flash_type
)
139 case "$flash_type" in
141 default_do_upgrade
"$@"
144 echo "Firmware upgrade on NAND devices is REALLY unsupported."
149 platform_do_upgrade
() {
150 local file_type
=$
(platform_identify
"$1")
153 "chk") platform_do_upgrade_chk
"$ARGV";;
154 "cybertan") platform_do_upgrade_cybertan
"$ARGV";;
155 *) platform_do_upgrade_trx
"$ARGV";;