blob: e16128a9c5ebda82d2b55daf0dae90d589e694c1 (
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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
#!/bin/sh
#
# Copyright (C) 2012 OpenWrt.org
#
. /lib/functions.sh
. /lib/ar71xx.sh
get_mtd_part_size() {
local part_name=$1
local first dev size erasesize name
while read dev size erasesize name; do
name=${name#'"'}; name=${name%'"'}
if [ "$name" = "$part_name" ]; then
echo $((0x$size))
break
fi
done < /proc/mtd
}
get_magic_at() {
local mtddev=$1
local pos=$2
dd bs=1 count=2 skip=$pos if=$mtddev 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
}
dir825b_is_caldata_valid() {
local mtddev=$1
local magic
magic=$(get_magic_at $mtddev 4096)
[ "$magic" != "a55a" ] && return 0
magic=$(get_magic_at $mtddev 20480)
[ "$magic" != "a55a" ] && return 0
return 1
}
dir825b_copy_caldata() {
local cal_src=$1
local cal_dst=$2
local mtd_src
local mtd_dst
local md5_src
local md5_dst
mtd_src=$(find_mtd_part $cal_src)
[ -z "$mtd_src" ] && {
echo "no $cal_src partition found"
return 1
}
mtd_dst=$(find_mtd_part $cal_dst)
[ -z "$mtd_dst" ] && {
echo "no $cal_dst partition found"
return 1
}
dir825b_is_caldata_valid "$mtd_src" && {
echo "no valid calibration data found in $cal_src"
return 1
}
dir825b_is_caldata_valid "$mtd_dst" && {
echo "Copying calibration data from $cal_src to $cal_dst..."
dd if="$mtd_src" 2>/dev/null | mtd -q -q write - "$cal_dst"
}
md5_src=$(md5sum "$mtd_src") && md5_src="${md5_src%% *}"
md5_dst=$(md5sum "$mtd_dst") && md5_dst="${md5_dst%% *}"
[ "$md5_src" != "$md5_dst" ] && {
echo "calibration data mismatch $cal_src:$md5_src $cal_dst:$md5_dst"
return 1
}
return 0
}
dir825b_do_upgrade_combined() {
local fw_part=$1
local fw_file=$2
local fw_mtd=$(find_mtd_part $fw_part)
local fw_length=0x$(dd if="$fw_file" bs=2 skip=1 count=4 2>/dev/null)
local fw_blocks=$(($fw_length / 65536))
if [ -n "$fw_mtd" ] && [ ${fw_blocks:-0} -gt 0 ]; then
local append=""
[ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
sync
dd if="$fw_file" bs=64k skip=1 count=$fw_blocks 2>/dev/null | \
mtd $append write - "$fw_part"
fi
}
dir825b_check_image() {
local magic="$(get_magic_long "$1")"
local fw_mtd=$(find_mtd_part "firmware_orig")
case "$magic" in
"27051956")
;;
"43493030")
local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null)
local md5_chk=$(dd if="$1" bs=64k skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
local fw_len=$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
local fw_part_len=$(get_mtd_part_size "firmware")
if [ -z "$fw_mtd" ]; then
ask_bool 0 "Do you have a backup of the caldata partition?" || {
echo "Warning, please make sure that you have a backup of the caldata partition."
echo "Once you have that, use 'sysupgrade -i' for upgrading to the 'fat' firmware."
return 1
}
fi
if [ -z "$md5_img" -o -z "$md5_chk" ]; then
echo "Unable to get image checksums. Maybe you are using a streamed image?"
return 1
fi
if [ "$md5_img" != "$md5_chk" ]; then
echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)"
return 1
fi
fw_len=$((0x$fw_len))
fw_part_len=${fw_part_len:-0}
if [ $fw_part_len -lt $fw_len ]; then
echo "The upgrade image is too big (size:$fw_len available:$fw_part_len)"
return 1
fi
;;
*)
echo "Unsupported image format."
return 1
;;
esac
return 0
}
platform_do_upgrade_dir825b() {
local magic="$(get_magic_long "$1")"
local fw_mtd=$(find_mtd_part "firmware_orig")
case "$magic" in
"27051956")
if [ -n "$fw_mtd" ]; then
# restore calibration data before downgrading to
# the normal image
dir825b_copy_caldata "caldata" "caldata_orig" || {
echo "unable to restore calibration data"
exit 1
}
PART_NAME="firmware_orig"
else
PART_NAME="firmware"
fi
default_do_upgrade "$ARGV"
;;
"43493030")
if [ -z "$fw_mtd" ]; then
# backup calibration data before upgrading to the
# fat image
dir825b_copy_caldata "caldata" "caldata_copy" || {
echo "unable to backup calibration data"
exit 1
}
fi
dir825b_do_upgrade_combined "firmware" "$ARGV"
;;
esac
}
|
