OpenWrt – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | CI_BLKSZ=65536 |
2 | CI_LDADR=0x80041000 |
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3 | |||
4 | platform_find_partitions() { |
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5 | local first dev size erasesize name |
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6 | while read dev size erasesize name; do |
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7 | name=${name#'"'}; name=${name%'"'} |
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8 | case "$name" in |
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9 | vmlinux.bin.l7|kernel|linux|rootfs) |
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10 | if [ -z "$first" ]; then |
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11 | first="$name" |
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12 | else |
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13 | echo "$erasesize:$first:$name" |
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14 | break |
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15 | fi |
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16 | ;; |
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17 | esac |
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18 | done < /proc/mtd |
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19 | } |
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20 | |||
21 | platform_find_kernelpart() { |
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22 | local part |
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23 | for part in "${1%:*}" "${1#*:}"; do |
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24 | case "$part" in |
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25 | vmlinux.bin.l7|kernel|linux) |
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26 | echo "$part" |
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27 | break |
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28 | ;; |
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29 | esac |
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30 | done |
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31 | } |
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32 | |||
33 | platform_check_image() { |
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34 | [ "$#" -gt 1 ] && return 1 |
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35 | |||
36 | case "$(get_magic_word "$1")" in |
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37 | # Combined Image |
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38 | 4349) |
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39 | local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null) |
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40 | local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}" |
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41 | |||
42 | if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then |
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43 | return 0 |
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44 | else |
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45 | echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)" |
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46 | return 1 |
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47 | fi |
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48 | ;; |
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49 | *) |
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50 | echo "Invalid image. Use combined .img files on this platform" |
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51 | return 1 |
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52 | ;; |
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53 | esac |
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54 | } |
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55 | |||
56 | platform_do_upgrade() { |
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57 | local partitions=$(platform_find_partitions) |
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58 | local kernelpart=$(platform_find_kernelpart "${partitions#*:}") |
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59 | local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}" |
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60 | local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null) |
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61 | local kern_blocks=$(($kern_length / $CI_BLKSZ)) |
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62 | local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ)) |
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63 | |||
64 | if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \ |
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65 | [ ${kern_blocks:-0} -gt 0 ] && \ |
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66 | [ ${root_blocks:-0} -gt ${kern_blocks:-0} ] && \ |
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67 | [ ${erase_size:-0} -gt 0 ]; |
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68 | then |
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69 | local append="" |
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70 | [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR" |
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71 | |||
72 | ( dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null; \ |
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73 | dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null ) | \ |
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74 | mtd -r $append -F$kernelpart:$kern_length:$CI_LDADR,rootfs write - $partitions |
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75 | fi |
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76 | } |