Root/target/linux/ar71xx/base-files/lib/upgrade/platform.sh

1#
2# Copyright (C) 2009 OpenWrt.org
3#
4
5. /lib/ar71xx.sh
6
7PART_NAME=firmware
8RAMFS_COPY_DATA=/lib/ar71xx.sh
9
10CI_BLKSZ=65536
11CI_LDADR=0x80060000
12
13platform_find_partitions() {
14    local first dev size erasesize name
15    while read dev size erasesize name; do
16        name=${name#'"'}; name=${name%'"'}
17        case "$name" in
18            vmlinux.bin.l7|kernel|linux|rootfs)
19                if [ -z "$first" ]; then
20                    first="$name"
21                else
22                    echo "$erasesize:$first:$name"
23                    break
24                fi
25            ;;
26        esac
27    done < /proc/mtd
28}
29
30platform_find_kernelpart() {
31    local part
32    for part in "${1%:*}" "${1#*:}"; do
33        case "$part" in
34            vmlinux.bin.l7|kernel|linux)
35                echo "$part"
36                break
37            ;;
38        esac
39    done
40}
41
42platform_do_upgrade_combined() {
43    local partitions=$(platform_find_partitions)
44    local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
45    local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}"
46    local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
47    local kern_blocks=$(($kern_length / $CI_BLKSZ))
48    local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ))
49
50    if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \
51       [ ${kern_blocks:-0} -gt 0 ] && \
52       [ ${root_blocks:-0} -gt ${kern_blocks:-0} ] && \
53       [ ${erase_size:-0} -gt 0 ];
54    then
55        local append=""
56        [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
57
58        ( dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null; \
59          dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null ) | \
60            mtd -r $append -F$kernelpart:$kern_length:$CI_LDADR,rootfs write - $partitions
61    fi
62}
63
64platform_check_image() {
65    local board=$(ar71xx_board_name)
66    local magic="$(get_magic_word "$1")"
67
68    [ "$ARGC" -gt 1 ] && return 1
69
70    case "$board" in
71    ap81 | ap83 | dir-600-a1 | dir-615-c1 | dir-825-b1 | mzk-w04nu | mzk-w300nh | tew-632brp | wrt400n | bullet-m | nanostation-m | rocket-m | wzr-hp-g300nh )
72        [ "$magic" != "2705" ] && {
73            echo "Invalid image type."
74            return 1
75        }
76        return 0
77        ;;
78    tl-wr741nd | tl-wr841n-v1 | tl-wr941nd | tl-wr1043nd)
79        [ "$magic" != "0100" ] && {
80            echo "Invalid image type."
81            return 1
82        }
83        return 0
84        ;;
85    wndr3700)
86        [ "$magic" != "3337" ] && {
87            echo "Invalid image type."
88            return 1
89        }
90        return 0
91        ;;
92    wrt160nl)
93        [ "$magic" != "4e4c" ] && {
94            echo "Invalid image type."
95            return 1
96        }
97        return 0
98        ;;
99    routerstation | routerstation-pro | ls-sr71 | pb42 | pb44)
100        [ "$magic" != "4349" ] && {
101            echo "Invalid image. Use *-sysupgrade.bin files on this board"
102            return 1
103        }
104
105        local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null)
106        local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
107
108        if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then
109            return 0
110        else
111            echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)"
112            return 1
113        fi
114        return 0
115        ;;
116    esac
117
118    echo "Sysupgrade is not yet supported on $board."
119    return 1
120}
121
122platform_do_upgrade() {
123    local board=$(ar71xx_board_name)
124
125    case "$board" in
126    routerstation | routerstation-pro | ls-sr71)
127        platform_do_upgrade_combined "$ARGV"
128        ;;
129    *)
130        default_do_upgrade "$ARGV"
131        ;;
132    esac
133}
134
135disable_watchdog() {
136    killall watchdog
137    ( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
138        echo 'Could not disable watchdog'
139        return 1
140    }
141}
142
143append sysupgrade_pre_upgrade disable_watchdog
144

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