diff options
| author | Jo-Philipp Wich <jow@openwrt.org> | 2009-06-23 19:17:53 +0000 |
|---|---|---|
| committer | Jo-Philipp Wich <jow@openwrt.org> | 2009-06-23 19:17:53 +0000 |
| commit | 35874fad2b140e7bab2609051dc9ed3eb27848f1 (patch) | |
| tree | 252e4ff13718bb93eec5dd2935fd2a70a0029d43 /contrib/package/sysupgrade-atheros/files/lib | |
| parent | c6a29c1a08f3e6bfcf5550a8428d7f444b2c1498 (diff) | |
contrib/package/sysupgrade-atheros: add more sanity checks
Diffstat (limited to 'contrib/package/sysupgrade-atheros/files/lib')
| -rw-r--r-- | contrib/package/sysupgrade-atheros/files/lib/upgrade/platform.sh | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/contrib/package/sysupgrade-atheros/files/lib/upgrade/platform.sh b/contrib/package/sysupgrade-atheros/files/lib/upgrade/platform.sh index 87a3248104..2a8c31def9 100644 --- a/contrib/package/sysupgrade-atheros/files/lib/upgrade/platform.sh +++ b/contrib/package/sysupgrade-atheros/files/lib/upgrade/platform.sh @@ -3,7 +3,17 @@ platform_check_image() { case "$(get_magic_word "$1")" in # Freifunk .img files - 4646) return 0;; + 4646) + local kern_name=$(dd if="$1" bs=2 skip=5 count=8 2>/dev/null); kern_name="${kern_name%% *}" + local root_name=$(dd if="$1" bs=2 skip=17 count=8 2>/dev/null); root_name="${root_name%% *}" + + if grep -q '"'$kern_name'"' /proc/mtd && grep -q '"'$root_name'"' /proc/mtd; then + return 0 + else + echo "Invalid image. Missing the '$kern_name' or '$root_name' partition" + return 1 + fi + ;; *) echo "Invalid image. Use Freifunk .img files on this platform" return 1 @@ -17,16 +27,18 @@ platform_do_upgrade() { local root_length=$((0x$(dd if="$1" bs=2 skip=13 count=4 2>/dev/null)/65536)) local root_name=$(dd if="$1" bs=2 skip=17 count=8 2>/dev/null); root_name="${root_name%% *}" - local append="" - [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR" + if grep -q '"'$kern_name'"' /proc/mtd && grep -q '"'$root_name'"' /proc/mtd; then + local append="" + [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR" - if [ -n "$kern_name" -a -n "$root_name" ] && \ - [ ${kern_length:-0} -gt 0 -a ${root_length:-0} -gt ${kern_length:-0} ]; - then - dd if="$1" bs=65536 skip=1 count=$kern_length 2>/dev/null | \ - mtd -e $kern_name write - $kern_name + if [ -n "$kern_name" -a -n "$root_name" ] && \ + [ ${kern_length:-0} -gt 0 -a ${root_length:-0} -gt ${kern_length:-0} ]; + then + dd if="$1" bs=65536 skip=1 count=$kern_length 2>/dev/null | \ + mtd -e $kern_name write - $kern_name - dd if="$1" bs=65536 skip=$((1+$kern_length)) count=$root_length 2>/dev/null | \ - mtd -e $root_name $append write - $root_name + dd if="$1" bs=65536 skip=$((1+$kern_length)) count=$root_length 2>/dev/null | \ + mtd -e $root_name $append write - $root_name + fi fi } |