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author | Jo-Philipp Wich <jow@openwrt.org> | 2009-09-22 01:09:04 +0000 |
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committer | Jo-Philipp Wich <jow@openwrt.org> | 2009-09-22 01:09:04 +0000 |
commit | 92bc60d8f37f14ef4285b23141033bdb5cf57c94 (patch) | |
tree | fd68a9d1f91c5113d92b9731edff5bf7bb6adb28 /target/linux/atheros/base-files/lib/upgrade/platform.sh | |
parent | 2e50e61cf210177b7fd4cfcac9dbad39229c1759 (diff) | |
download | master-187ad058-92bc60d8f37f14ef4285b23141033bdb5cf57c94.tar.gz master-187ad058-92bc60d8f37f14ef4285b23141033bdb5cf57c94.tar.bz2 master-187ad058-92bc60d8f37f14ef4285b23141033bdb5cf57c94.zip |
[atheros] Implement a preliminary combined image format.
- add sysupgrade support for combined images by providing a platform.sh backend
- use the mtd fis partition table rewrite facility to resize partitions on demand
- generate generic combined images for the atheros target
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17668 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/atheros/base-files/lib/upgrade/platform.sh')
-rw-r--r-- | target/linux/atheros/base-files/lib/upgrade/platform.sh | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/target/linux/atheros/base-files/lib/upgrade/platform.sh b/target/linux/atheros/base-files/lib/upgrade/platform.sh new file mode 100644 index 0000000000..d4daaacb95 --- /dev/null +++ b/target/linux/atheros/base-files/lib/upgrade/platform.sh @@ -0,0 +1,76 @@ +CI_BLKSZ=65536 +CI_LDADR=0x80041000 + +platform_find_partitions() { + local first dev size erasesize name + while read dev size erasesize name; do + name=${name#'"'}; name=${name%'"'} + case "$name" in + vmlinux.bin.l7|kernel|linux|rootfs) + if [ -z "$first" ]; then + first="$name" + else + echo "$erasesize:$first:$name" + break + fi + ;; + esac + done < /proc/mtd +} + +platform_find_kernelpart() { + local part + for part in "${1%:*}" "${1#*:}"; do + case "$part" in + vmlinux.bin.l7|kernel|linux) + echo "$part" + break + ;; + esac + done +} + +platform_check_image() { + [ "$ARGC" -gt 1 ] && return 1 + + case "$(get_magic_word "$1")" in + # Combined Image + 4349) + local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null) + local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}" + + if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then + return 0 + else + echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)" + return 1 + fi + ;; + *) + echo "Invalid image. Use combined .img files on this platform" + return 1 + ;; + esac +} + +platform_do_upgrade() { + local partitions=$(platform_find_partitions) + local kernelpart=$(platform_find_kernelpart "${partitions#*:}") + local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}" + local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null) + local kern_blocks=$(($kern_length / $CI_BLKSZ)) + local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ)) + + if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \ + [ ${kern_blocks:-0} -gt 0 ] && \ + [ ${root_blocks:-0} -gt ${kern_blocks:-0} ] && \ + [ ${erase_size:-0} -gt 0 ]; + then + local append="" + [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR" + + ( dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null; \ + dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null ) | \ + mtd -r $append -F$kernelpart:$kern_length:$CI_LDADR,rootfs write - $partitions + fi +} |