blob: 844cc4ed95939e6d74aeba5a9364fa43b860dde5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
# ======== dev note ========
# for following buffalo MT7622 devices:
#
# - WSR-2533DHP2 (trx magic: "DHP2")
# - WSR-2533DHP3 (trx magic: "DHP3")
# - WSR-3200AX4S (trx magic: "DHP3")
#
# sysupgrade-tar image:
#
# This is for normal upgrading for OpenWrt.
# use nand_do_upgrade with CI_KERNPART="firmware"
#
# - if the size of new kernel is not equal with the current kernel's
# -> block upgrade and print a message about using TRX + UBI
# formatted image
# (should be flashed the new ubi contains rootfs + rootfs_data
# with the offset (=new padded kernel's end) if this case? But
# it maybe too hard for writing scripts...)
#
# TRX + UBI formatted image:
#
# This is for upgrading if the new kernel is larger than the
# current kernel.
#
# ex:
# - stock firmware is installed in the flash and booted with
# OpenWrt initramfs image
# - kernel partition is increased from 4MiB in OpenWrt in the
# future
#
# packing TRX + UBI formatted image by tar is needed for image validation
# with the metadata in the future?
# ====== dev note end ======
#
# The mtd partitions "firmware" and "Kernel2" on NAND flash are os-image
# partitions. These partitions are called as "Image1/Image2" in U-Boot
# on WSR-2533DHP2, and they are checked conditions when booting.
# "Image1" is always used for booting.
#
# == U-Boot Behaviors ==
# - "Image1"/"Image2" images are good, images are different or
# "Image2" image is broken
# -> writes os-image to "Image2" from "Image1"
#
# - "Image1" image is broken
# -> writes os-image to "Image1" from "Image2"
#
# - "Image1"/"Image2" images are broken
# -> fall to U-Boot command line
buffalo_check_image() {
local board="$1"
local boardname="$(echo $board | tr ',' '_')"
local magic="$2"
local fw_image="$3"
# return error state if TRX + UBI formatted image specified
# to notify about configurations
if [ "$magic" = "44485032" -o "$magic" = "44485033" ]; then
echo "Your configurations won't be saved if factory-uboot.bin image specified."
echo "But if you want to upgrade, please execute sysupgrade with \"-F\" option."
return 1
fi
# check if valid tar file specifed
if ! tar tf "$fw_image" &>/dev/null; then
echo "Specified file is not a tar archive: $fw_image"
return 1
fi
local control_len=$( (tar xf $fw_image sysupgrade-$boardname/CONTROL -O | wc -c) 2> /dev/null)
# check if valid sysupgrade tar archive
if [ "$control_len" = "0" ]; then
echo "Invalid sysupgrade file: $fw_image"
return 1
fi
local kern_part_len=$(grep "\"linux\"" /proc/mtd | sed "s/mtd[0-9]*:[ \t]*\([^ \t]*\).*/\1/")
[ -z "$kern_part_len" ] && {
echo "Unable to get \"linux\" partition size"
return 1
}
kern_part_len=$((0x$kern_part_len))
# this also checks if the sysupgrade image is for correct models
local kern_bin_len=$( (tar xf $fw_image sysupgrade-${boardname}/kernel -O | wc -c) 2> /dev/null)
if [ -z "$kern_bin_len" ]; then
echo "Failed to get new kernel size, is valid sysupgrade image specified for the device?"
return 1
fi
# kernel binary has a trx header (len: 28 (0x1c))
kern_bin_len=$((kern_bin_len - 28))
if [ "$kern_bin_len" != "$kern_part_len" ]; then
echo -n "The length of new kernel is invalid for current "
echo "\"linux\" partition, please use factory-uboot.bin image."
echo "\"linux\" partition: $kern_part_len, new kernel: $kern_bin_len"
return 1
fi
}
# for TRX + UBI formatted image
buffalo_upgrade_ubinized() {
sync
echo 3 > /proc/sys/vm/drop_caches
local mtdnum="$( find_mtd_index "ubi" )"
# if no "ubi", don't return error for the purpose of recovery
# ex: recovery after accidental erasing "firmware" partition
if [ ! "$mtdnum" ]; then
echo "cannot find ubi mtd partition \"ubi\", skip detachment"
else
ubidetach -m "$mtdnum"
fi
# erase all data in "firmware"
mtd erase "${PART_NAME}"
# write TRX + UBI formatted image to "firmware"
get_image "$1" | mtd $MTD_ARGS write - "${PART_NAME:-firmware}"
if [ $? -ne 0 ]; then
echo "Failed to write the specified image."
exit 1
fi
}
|
