+ventoy_need_proc_ibt() {
+ vtKv=$($BUSYBOX_PATH/uname -r)
+ vtMajor=$(echo $vtKv | $AWK -F. '{print $1}')
+ vtMinor=$(echo $vtKv | $AWK -F. '{print $2}')
+
+ #ibt was supported since linux kernel 5.18
+ if [ $vtMajor -lt 5 ]; then
+ $BUSYBOX_PATH/false; return
+ elif [ $vtMajor -eq 5 ]; then
+ if [ $vtMajor -lt 18 ]; then
+ $BUSYBOX_PATH/false; return
+ fi
+ fi
+
+ if $GREP -q ' ibt=off' /proc/cmdline; then
+ $BUSYBOX_PATH/false; return
+ fi
+
+ #hardware CPU doesn't support IBT
+ if $VTOY_PATH/tool/vtoykmod -I; then
+ :
+ else
+ $BUSYBOX_PATH/false; return
+ fi
+
+ #dot.CONFIG not enabled
+ if $GREP -q ' ibt_restore$' /proc/kallsyms; then
+ :
+ else
+ $BUSYBOX_PATH/false; return
+ fi
+
+ $BUSYBOX_PATH/true
+}
+
+
+ventoy_need_dm_patch() {
+ if [ "$VTOY_LINUX_REMOUNT" != "01" ]; then
+ if $GREP -q 'VTOY_LINUX_REMOUNT=1' /proc/cmdline; then
+ :
+ else
+ $BUSYBOX_PATH/false; return
+ fi
+ fi
+
+ if $GREP -q 'device-mapper' /proc/devices; then
+ :
+ else
+ $BUSYBOX_PATH/false; return
+ fi
+
+ if $GREP -q 'dm_patch' /proc/modules; then
+ $BUSYBOX_PATH/false; return
+ fi
+
+ vtMajorVer=$($BUSYBOX_PATH/uname -r | $AWK -F. '{print $1}')
+ vtMinorVer=$($BUSYBOX_PATH/uname -r | $AWK -F. '{print $2}')
+
+ if [ $vtMajorVer -lt 3 ]; then
+ $BUSYBOX_PATH/false; return
+ elif [ $vtMajorVer -eq 3 -a $vtMinorVer -lt 10 ]; then
+ $BUSYBOX_PATH/false; return
+ fi
+
+
+ $BUSYBOX_PATH/true
+}
+
+ventoy_dm_patch() {
+ vtDmPatchDebug=0
+ vtMType=$($BUSYBOX_PATH/uname -m)
+
+ vtlog "######### ventoy_dm_patch ############"
+
+ if echo $vtMType | $EGREP -i -q "x86.64|amd64"; then
+ vtKoName=dm_patch_64.ko
+ elif echo $vtMType | $EGREP -i -q "i[3-6]86"; then
+ vtKoName=dm_patch_32.ko
+ else
+ vtlog "unsupported machine type $vtMType"
+ return
+ fi
+
+ if ventoy_need_proc_ibt; then
+ vtlog "need to proc IBT"
+ vtKoName=dm_patch_ibt_64.ko
+ vtIBT='0x8888'
+ else
+ vtlog "NO need to proc IBT"
+ vtIBT='0'
+ fi
+
+
+ if [ -f $VTOY_PATH/tool/$vtKoName ]; then
+ vtlog "/ventoy/tool/$vtKoName exist OK"
+ else
+ vtlog "/ventoy/tool/$vtKoName NOT exist"
+ return
+ fi
+
+ $CAT /proc/kallsyms | $BUSYBOX_PATH/sort > $VTOY_PATH/kallsyms
+
+ if $GREP -m1 -q 'open_table_device.isra' $VTOY_PATH/kallsyms; then
+ vtLine=$($VTOY_PATH/tool/vtoyksym open_table_device.isra $VTOY_PATH/kallsyms)
+ vtlog "get open_table_device.isra address $vtLine"
+ else
+ vtLine=$($VTOY_PATH/tool/vtoyksym dm_get_table_device $VTOY_PATH/kallsyms)
+ vtlog "get dm_get_table_device address $vtLine"
+ fi
+ get_addr=$(echo $vtLine | $AWK '{print $1}')
+ get_size=$(echo $vtLine | $AWK '{print $2}')
+
+ vtLine=$($VTOY_PATH/tool/vtoyksym blkdev_get_by_dev $VTOY_PATH/kallsyms)
+ vtlog "get blkdev_get_by_dev address $vtLine"
+ blkdev_get_addr=$(echo $vtLine | $AWK '{print $1}')
+
+ vtLine=$($VTOY_PATH/tool/vtoyksym blkdev_put $VTOY_PATH/kallsyms)
+ vtlog "get blkdev_put address $vtLine"
+ blkdev_put_addr=$(echo $vtLine | $AWK '{print $1}')
+
+ vtLine=$($VTOY_PATH/tool/vtoyksym bdev_open_by_dev $VTOY_PATH/kallsyms)
+ vtlog "get bdev_open_by_dev address $vtLine"
+ bdev_open_addr=$(echo $vtLine | $AWK '{print $1}')
+
+
+ if $GREP -m1 -q 'close_table_device.isra' $VTOY_PATH/kallsyms; then
+ vtLine=$($VTOY_PATH/tool/vtoyksym close_table_device.isra $VTOY_PATH/kallsyms)
+ vtlog "get close_table_device.isra address $vtLine"
+ else
+ vtLine=$($VTOY_PATH/tool/vtoyksym dm_put_table_device $VTOY_PATH/kallsyms)
+ vtlog "get dm_put_table_device address $vtLine"
+ fi
+ put_addr=$(echo $vtLine | $AWK '{print $1}')
+ put_size=$(echo $vtLine | $AWK '{print $2}')
+
+ ro_addr=$($GREP ' set_memory_ro$' /proc/kallsyms | $AWK '{print $1}')
+ rw_addr=$($GREP ' set_memory_rw$' /proc/kallsyms | $AWK '{print $1}')
+ kprobe_reg_addr=$($GREP ' register_kprobe$' /proc/kallsyms | $AWK '{print $1}')
+ kprobe_unreg_addr=$($GREP ' unregister_kprobe$' /proc/kallsyms | $AWK '{print $1}')
+
+ if [ "$VTOY_DEBUG_LEVEL" = "01" ]; then
+ vtDmPatchDebug=1
+ fi
+
+ if $GREP -q 'dmpatch_debug' /proc/cmdline; then
+ vtDmPatchDebug=1
+ fi
+
+
+ if [ $vtDmPatchDebug -eq 1 ]; then
+ printk_addr=$($GREP ' printk$' /proc/kallsyms | $AWK '{print $1}')
+ if [ -z "$printk_addr" ]; then
+ printk_addr=$($GREP ' _printk$' /proc/kallsyms | $AWK '{print $1}')
+ fi
+ vtDebug="-v"
+ else
+ printk_addr=0
+ fi
+
+ #printk_addr=$($GREP ' printk$' /proc/kallsyms | $AWK '{print $1}')
+ #vtDebug="-v"
+
+ vtlog get_addr=$get_addr get_size=$get_size
+ vtlog put_addr=$put_addr put_size=$put_size
+ vtlog blkdev_get_addr=$blkdev_get_addr blkdev_put_addr=$blkdev_put_addr
+ vtlog kprobe_reg_addr=$kprobe_reg_addr kprobe_unreg_addr=$kprobe_unreg_addr
+ vtlog ro_addr=$ro_addr rw_addr=$rw_addr printk_addr=$printk_addr bdev_open_addr=$bdev_open_addr
+
+ if [ "$get_addr" = "0" -o "$put_addr" = "0" ]; then
+ vtlog "Invalid symbol address"
+ return
+ fi
+ if [ "$ro_addr" = "0" -o "$rw_addr" = "0" ]; then
+ vtlog "Invalid symbol address"
+ return
+ fi
+
+
+ vtKv=$($BUSYBOX_PATH/uname -r)
+ vtKVMajor=$(echo $vtKv | $AWK -F. '{print $1}')
+ vtKVMinor=$(echo $vtKv | $AWK -F. '{print $2}')
+ vtKVSubMinor=$(echo $vtKv | $AWK -F. '{print $3}')
+
+ if [ ! -d /lib/modules/$vtKv ]; then
+ vtlog "No modules directory found"
+ return
+ elif [ -d /lib/modules/$vtKv/kernel/fs ]; then
+ vtModPath=$($FIND /lib/modules/$vtKv/kernel/fs/ -name "*.ko*" | $HEAD -n1)
+ elif [ -d /lib/modules/$vtKv/kernel ]; then
+ vtModPath=$($FIND /lib/modules/$vtKv/kernel/ -name "xfs.ko*" | $HEAD -n1)
+ elif [ -d /lib/modules/$vtKv/initrd ]; then
+ vtModPath=$($FIND /lib/modules/$vtKv/initrd/ -name "xfs.ko*" | $HEAD -n1)
+ fi
+
+
+ if [ -z "$vtModPath" ]; then
+ vtModPath=$($FIND /lib/modules/$vtKv/ -name "*.ko*" | $HEAD -n1)
+ fi
+
+ vtModName=$($BUSYBOX_PATH/basename $vtModPath)
+
+ vtlog "template module is $vtModPath $vtModName"
+
+ if [ -z "$vtModPath" ]; then
+ vtlog "No template module found"
+ return
+ elif echo $vtModPath | $GREP -q "[.]ko$"; then
+ $BUSYBOX_PATH/cp -a $vtModPath $VTOY_PATH/$vtModName
+ elif echo $vtModPath | $GREP -q "[.]ko[.]xz$"; then
+ $BUSYBOX_PATH/xzcat $vtModPath > $VTOY_PATH/$vtModName
+ elif echo $vtModPath | $GREP -q "[.]ko[.]gz$"; then
+ $BUSYBOX_PATH/zcat $vtModPath > $VTOY_PATH/$vtModName
+ elif echo $vtModPath | $GREP -q "[.]ko[.]zst$"; then
+ $VTOY_PATH/tool/zstdcat $vtModPath > $VTOY_PATH/$vtModName
+ else
+ vtlog "unsupport module type"
+ return
+ fi
+
+
+
+ #step1: modify vermagic/mod crc/relocation
+ vtlog "$VTOY_PATH/tool/vtoykmod -u $vtKVMajor $vtKVMinor $VTOY_PATH/tool/$vtKoName $VTOY_PATH/$vtModName $vtDebug"
+ $VTOY_PATH/tool/vtoykmod -u $vtKVMajor $vtKVMinor $VTOY_PATH/tool/$vtKoName $VTOY_PATH/$vtModName $vtDebug >>$VTLOG 2>&1
+
+ #step2: fill parameters
+ vtPgsize=$($VTOY_PATH/tool/vtoyksym -p)
+
+ vtPrams="$VTOY_PATH/tool/$vtKoName $vtPgsize 0x$printk_addr 0x$ro_addr 0x$rw_addr $get_addr $get_size $put_addr $put_size 0x$kprobe_reg_addr 0x$kprobe_unreg_addr $vtKVMajor $vtIBT $vtKVMinor $blkdev_get_addr $blkdev_put_addr $vtKVSubMinor $bdev_open_addr $vtDebug"
+
+
+ vtlog "$VTOY_PATH/tool/vtoykmod -f $vtPrams"
+ $VTOY_PATH/tool/vtoykmod -f $vtPrams >>$VTLOG 2>&1
+
+
+ vtlog "insmod $VTOY_PATH/tool/$vtKoName"
+ $BUSYBOX_PATH/insmod $VTOY_PATH/tool/$vtKoName >>$VTLOG 2>&1
+
+ if $GREP -q 'dm_patch' /proc/modules; then
+ vtlog "dm_patch module OK"
+ echo "done" > $VTOY_PATH/dm_patch_done
+ else
+ vtlog "dm_patch module FAILED"
+ fi
+
+}
+
projects / Ventoy.git / blobdiff