IMG/cpio/ventoy/hook/ventoy-hook-lib.sh

   1 #!/ventoy/busybox/sh
   2 #************************************************************************************
   3 # Copyright (c) 2020, longpanda <admin@ventoy.net>
   4 #
   5 # This program is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU General Public License as
   7 # published by the Free Software Foundation; either version 3 of the
   8 # License, or (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, see <http://www.gnu.org/licenses/>.
  17 #
  18 #************************************************************************************
  19
  20 VTOY_PATH=/ventoy
  21 BUSYBOX_PATH=$VTOY_PATH/busybox
  22 VTLOG=$VTOY_PATH/log
  23 FIND=$BUSYBOX_PATH/find
  24 GREP=$BUSYBOX_PATH/grep
  25 EGREP=$BUSYBOX_PATH/egrep
  26 CAT=$BUSYBOX_PATH/cat
  27 AWK=$BUSYBOX_PATH/awk
  28 SED=$BUSYBOX_PATH/sed
  29 SLEEP=$BUSYBOX_PATH/sleep
  30 HEAD=$BUSYBOX_PATH/head
  31 VTOY_DM_PATH=/dev/mapper/ventoy
  32 VTOY_DEBUG_LEVEL=$($BUSYBOX_PATH/hexdump -n 1 -s 450 -e '1/1 "%02x"' $VTOY_PATH/ventoy_os_param)
  33 VTOY_LINUX_REMOUNT=$($BUSYBOX_PATH/hexdump -n 1 -s 454 -e '1/1 "%02x"' $VTOY_PATH/ventoy_os_param)
  34 VTOY_VLNK_BOOT=$($BUSYBOX_PATH/hexdump -n 1 -s 455 -e '1/1 "%02x"' $VTOY_PATH/ventoy_os_param)
  35
  36 if [ "$VTOY_DEBUG_LEVEL" = "01" ]; then
  37     if [ -e /dev/console ]; then
  38         VTLOG=/dev/console
  39     fi
  40 fi
  41
  42 vtlog() {
  43     if [ "$VTLOG" = "$VTOY_PATH/log" ]; then
  44         echo "$*" >>$VTLOG
  45     else
  46         echo -e "\033[32m $* \033[0m" > $VTLOG
  47         $SLEEP 2
  48     fi
  49 }
  50
  51 vterr() {
  52     if [ "$VTLOG" = "$VTOY_PATH/log" ]; then
  53         echo "$*" >>$VTLOG
  54     else
  55         echo -e "\n\033[31m $* \033[0m" > $VTLOG
  56         $SLEEP 30
  57     fi
  58 }
  59
  60
  61 is_ventoy_hook_finished() {
  62     [ -e $VTOY_PATH/hook_finish ]
  63 }
  64
  65 set_ventoy_hook_finish() {
  66     echo 'Y' > $VTOY_PATH/hook_finish
  67 }
  68
  69 get_ventoy_disk_name() {
  70     if [ "$VTOY_VLNK_BOOT" = "01" ]; then
  71         $VTOY_PATH/tool/vtoydump -t /ventoy/ventoy_os_param
  72     else
  73         line=$($VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param)
  74         if [ $? -eq 0 ]; then
  75             echo ${line%%#*}
  76         else
  77             echo "unknown"
  78         fi
  79     fi
  80 }
  81
  82 get_ventoy_iso_name() {
  83     line=$($VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param)
  84     if [ $? -eq 0 ]; then
  85         echo ${line##*#}
  86     else
  87         echo "unknown"
  88     fi
  89 }
  90
  91 wait_for_usb_disk_ready() {
  92     vtloop=0
  93     while [ -n "Y" ]; do
  94         usb_disk=$(get_ventoy_disk_name)
  95         vtlog "wait_for_usb_disk_ready $usb_disk ..."
  96
  97         if echo $usb_disk | $EGREP -q "nvme|mmc|nbd"; then
  98             vtpart2=${usb_disk}p2
  99         else
 100             vtpart2=${usb_disk}2
 101         fi
 102
 103         if [ -e "${vtpart2}" ]; then
 104             vtlog "wait_for_usb_disk_ready $usb_disk finish"
 105             break
 106         else
 107             let vtloop=vtloop+1
 108             if [ $vtloop -gt 2 ]; then
 109                 if [ "$VTLOG" != "$VTOY_PATH/log" ]; then
 110                     $VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param -v > $VTLOG
 111                 fi
 112             fi
 113             $SLEEP 0.3
 114         fi
 115     done
 116 }
 117
 118
 119 check_usb_disk_ready() {
 120     if echo $1 | $EGREP -q "nvme|mmc|nbd"; then
 121         vtpart2=${1}p2
 122     else
 123         vtpart2=${1}2
 124     fi
 125
 126     [ -e "${vtpart2}" ]
 127 }
 128
 129 not_ventoy_disk() {
 130     if echo $1 | $EGREP -q "nvme.*p$|mmc.*p$|nbd.*p$"; then
 131         vtDiskName=${1:0:-1}
 132     else
 133         vtDiskName=$1
 134     fi
 135
 136     if [ "$VTOY_VLNK_BOOT" = "01" ]; then
 137         vtVtoyDisk=$($VTOY_PATH/tool/vtoydump -t $VTOY_PATH/ventoy_os_param)
 138         [ "$vtVtoyDisk" != "/dev/$vtDiskName" ]
 139     else
 140         if $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c "$vtDiskName"; then
 141             $BUSYBOX_PATH/false
 142         else
 143             $BUSYBOX_PATH/true
 144         fi
 145     fi
 146 }
 147
 148 ventoy_get_vblade_bin() {
 149     if $VTOY_PATH/tool/vblade_64 -t >>$VTLOG 2>&1; then
 150         echo $VTOY_PATH/tool/vblade_64
 151     else
 152         echo $VTOY_PATH/tool/vblade_32
 153     fi
 154 }
 155
 156 ventoy_find_bin_path() {
 157     if $BUSYBOX_PATH/which "$1" > /dev/null; then
 158         $BUSYBOX_PATH/which "$1"; return
 159     fi
 160
 161     for vt_path in '/bin' '/sbin' '/usr/bin' '/usr/sbin' '/usr/local/bin' '/usr/local/sbin' '/root/bin'; do
 162         if [ -e "$vt_path/$1" ]; then
 163             echo "$vt_path/$1"; return
 164         fi
 165     done
 166
 167     echo ""
 168 }
 169
 170
 171 ventoy_find_bin_run() {
 172     vtsudo=0
 173     if [ "$1" = "sudo" ]; then
 174         shift
 175         vtsudo=1
 176     fi
 177
 178     vtbinpath=$(ventoy_find_bin_path "$1")
 179     if [ -n "$vtbinpath" ]; then
 180         shift
 181
 182         if [ $vtsudo -eq 0 ]; then
 183             vtlog "$vtbinpath $*"
 184             $vtbinpath $*
 185         else
 186             vtlog "sudo $vtbinpath $*"
 187             sudo $vtbinpath $*
 188         fi
 189     fi
 190 }
 191
 192 ventoy_get_module_postfix() {
 193     vtKerVer=$($BUSYBOX_PATH/uname -r)
 194     vtLine=$($FIND /lib/modules/$vtKerVer/ -name *.ko* | $HEAD -n1)
 195     vtComp=${vtLine##*/*.ko}
 196     echo "ko$vtComp"
 197 }
 198
 199 ventoy_check_dm_module() {
 200     if $GREP -q 'device-mapper' /proc/devices; then
 201         $BUSYBOX_PATH/true; return
 202     fi
 203
 204     vtlog "device-mapper NOT found in /proc/devices, try to load kernel module"
 205     $BUSYBOX_PATH/modprobe dm_mod >>$VTLOG 2>&1
 206     $BUSYBOX_PATH/modprobe dm-mod >>$VTLOG 2>&1
 207
 208     if ! $GREP -q 'device-mapper' /proc/devices; then
 209         vtlog "modprobe failed, now try to insmod ko..."
 210
 211         $FIND /lib/modules/ -name "dm-mod.ko*" | while read vtline; do
 212             vtlog "insmod $vtline "
 213             $BUSYBOX_PATH/insmod $vtline >>$VTLOG 2>&1
 214             if [ $? -eq 0 ]; then
 215                 vtlog "insmod success"
 216             else
 217                 vtlog "insmod failed, try decompress"
 218                 if echo $vtline | $GREP -q "\.zst"; then
 219                     $VTOY_PATH/tool/zstdcat $vtline > $VTOY_PATH/extract_dm_mod.ko
 220                     $BUSYBOX_PATH/insmod $VTOY_PATH/extract_dm_mod.ko >>$VTLOG 2>&1
 221                 fi
 222             fi
 223         done
 224     fi
 225
 226     if $GREP -q 'device-mapper' /proc/devices; then
 227         vtlog "device-mapper found in /proc/devices after retry"
 228         $BUSYBOX_PATH/true; return
 229     else
 230         vtlog "device-mapper still NOT found in /proc/devices after retry"
 231         $BUSYBOX_PATH/false; return
 232     fi
 233 }
 234
 235 ventoy_need_proc_ibt() {
 236     vtKv=$($BUSYBOX_PATH/uname -r)
 237     vtMajor=$(echo $vtKv | $AWK -F. '{print $1}')
 238     vtMinor=$(echo $vtKv | $AWK -F. '{print $2}')
 239
 240     #ibt was supported since linux kernel 5.18
 241     if [ $vtMajor -lt 5 ]; then
 242         $BUSYBOX_PATH/false; return
 243     elif [ $vtMajor -eq 5 ]; then
 244         if [ $vtMajor -lt 18 ]; then
 245             $BUSYBOX_PATH/false; return
 246         fi
 247     fi
 248
 249     if $GREP -q ' ibt=off' /proc/cmdline; then
 250         $BUSYBOX_PATH/false; return
 251     fi
 252
 253     #hardware CPU doesn't support IBT
 254     if $VTOY_PATH/tool/vtoykmod -I; then
 255         :
 256     else
 257         $BUSYBOX_PATH/false; return
 258     fi
 259
 260     #dot.CONFIG not enabled
 261     if $GREP -q ' ibt_restore$' /proc/kallsyms; then
 262         :
 263     else
 264         $BUSYBOX_PATH/false; return
 265     fi
 266
 267     $BUSYBOX_PATH/true
 268 }
 269
 270
 271 ventoy_need_dm_patch() {
 272     if [ "$VTOY_LINUX_REMOUNT" != "01" ]; then
 273         if $GREP -q 'VTOY_LINUX_REMOUNT=1' /proc/cmdline; then
 274             :
 275         else
 276             $BUSYBOX_PATH/false; return
 277         fi
 278     fi
 279
 280     if $GREP -q 'device-mapper' /proc/devices; then
 281         :
 282     else
 283         $BUSYBOX_PATH/false; return
 284     fi
 285
 286     if $GREP -q 'dm_patch' /proc/modules; then
 287         $BUSYBOX_PATH/false; return
 288     fi
 289
 290     vtMajorVer=$($BUSYBOX_PATH/uname -r | $AWK -F. '{print $1}')
 291     vtMinorVer=$($BUSYBOX_PATH/uname -r | $AWK -F. '{print $2}')
 292
 293     if [ $vtMajorVer -lt 3 ]; then
 294         $BUSYBOX_PATH/false; return
 295     elif [ $vtMajorVer -eq 3 -a $vtMinorVer -lt 10 ]; then
 296         $BUSYBOX_PATH/false; return
 297     fi
 298
 299
 300     $BUSYBOX_PATH/true
 301 }
 302
 303 ventoy_dm_patch() {
 304     vtDmPatchDebug=0
 305     vtMType=$($BUSYBOX_PATH/uname -m)
 306
 307     vtlog "######### ventoy_dm_patch ############"
 308
 309     if echo $vtMType | $EGREP -i -q "x86.64|amd64"; then
 310         vtKoName=dm_patch_64.ko
 311     elif echo $vtMType | $EGREP -i -q "i[3-6]86"; then
 312         vtKoName=dm_patch_32.ko
 313     else
 314         vtlog "unsupported machine type $vtMType"
 315         return
 316     fi
 317
 318     if ventoy_need_proc_ibt; then
 319         vtlog "need to proc IBT"
 320         vtKoName=dm_patch_ibt_64.ko
 321         vtIBT='0x8888'
 322     else
 323         vtlog "NO need to proc IBT"
 324         vtIBT='0'
 325     fi
 326
 327
 328     if [ -f $VTOY_PATH/tool/$vtKoName ]; then
 329         vtlog "/ventoy/tool/$vtKoName exist OK"
 330     else
 331         vtlog "/ventoy/tool/$vtKoName NOT exist"
 332         return
 333     fi
 334
 335     $CAT /proc/kallsyms | $BUSYBOX_PATH/sort > $VTOY_PATH/kallsyms
 336
 337     if $GREP -m1 -q 'open_table_device.isra' $VTOY_PATH/kallsyms; then
 338         vtLine=$($VTOY_PATH/tool/vtoyksym open_table_device.isra $VTOY_PATH/kallsyms)
 339         vtlog "get open_table_device.isra address $vtLine"
 340     else
 341         vtLine=$($VTOY_PATH/tool/vtoyksym dm_get_table_device $VTOY_PATH/kallsyms)
 342         vtlog "get dm_get_table_device address $vtLine"
 343     fi
 344     get_addr=$(echo $vtLine | $AWK '{print $1}')
 345     get_size=$(echo $vtLine | $AWK '{print $2}')
 346
 347     vtLine=$($VTOY_PATH/tool/vtoyksym blkdev_get_by_dev $VTOY_PATH/kallsyms)
 348     vtlog "get blkdev_get_by_dev address $vtLine"
 349     blkdev_get_addr=$(echo $vtLine | $AWK '{print $1}')
 350
 351     vtLine=$($VTOY_PATH/tool/vtoyksym blkdev_put $VTOY_PATH/kallsyms)
 352     vtlog "get blkdev_put address $vtLine"
 353     blkdev_put_addr=$(echo $vtLine | $AWK '{print $1}')
 354
 355
 356     if $GREP -m1 -q 'close_table_device.isra' $VTOY_PATH/kallsyms; then
 357         vtLine=$($VTOY_PATH/tool/vtoyksym close_table_device.isra $VTOY_PATH/kallsyms)
 358         vtlog "get close_table_device.isra address $vtLine"
 359     else
 360         vtLine=$($VTOY_PATH/tool/vtoyksym dm_put_table_device $VTOY_PATH/kallsyms)
 361         vtlog "get dm_put_table_device address $vtLine"
 362     fi
 363     put_addr=$(echo $vtLine | $AWK '{print $1}')
 364     put_size=$(echo $vtLine | $AWK '{print $2}')
 365
 366     ro_addr=$($GREP ' set_memory_ro$' /proc/kallsyms | $AWK '{print $1}')
 367     rw_addr=$($GREP ' set_memory_rw$' /proc/kallsyms | $AWK '{print $1}')
 368     kprobe_reg_addr=$($GREP ' register_kprobe$' /proc/kallsyms | $AWK '{print $1}')
 369     kprobe_unreg_addr=$($GREP ' unregister_kprobe$' /proc/kallsyms | $AWK '{print $1}')
 370
 371     if [ "$VTOY_DEBUG_LEVEL" = "01" ]; then
 372         vtDmPatchDebug=1
 373     fi
 374
 375     if $GREP -q 'dmpatch_debug' /proc/cmdline; then
 376         vtDmPatchDebug=1
 377     fi
 378
 379
 380     if [ $vtDmPatchDebug -eq 1 ]; then
 381         printk_addr=$($GREP ' printk$' /proc/kallsyms | $AWK '{print $1}')
 382         if [ -z "$printk_addr" ]; then
 383             printk_addr=$($GREP ' _printk$' /proc/kallsyms | $AWK '{print $1}')
 384         fi
 385         vtDebug="-v"
 386     else
 387         printk_addr=0
 388     fi
 389
 390     #printk_addr=$($GREP ' printk$' /proc/kallsyms | $AWK '{print $1}')
 391     #vtDebug="-v"
 392
 393     vtlog get_addr=$get_addr  get_size=$get_size
 394     vtlog put_addr=$put_addr  put_size=$put_size
 395     vtlog blkdev_get_addr=$blkdev_get_addr blkdev_put_addr=$blkdev_put_addr
 396     vtlog kprobe_reg_addr=$kprobe_reg_addr  kprobe_unreg_addr=$kprobe_unreg_addr
 397     vtlog ro_addr=$ro_addr  rw_addr=$rw_addr  printk_addr=$printk_addr
 398
 399     if [ "$get_addr" = "0" -o "$put_addr" = "0" ]; then
 400         vtlog "Invalid symbol address"
 401         return
 402     fi
 403     if [ "$ro_addr" = "0" -o "$rw_addr" = "0" ]; then
 404         vtlog "Invalid symbol address"
 405         return
 406     fi
 407
 408
 409     vtKv=$($BUSYBOX_PATH/uname -r)
 410     vtKVMajor=$(echo $vtKv | $AWK -F. '{print $1}')
 411     vtKVMinor=$(echo $vtKv | $AWK -F. '{print $2}')
 412
 413     if [ ! -d /lib/modules/$vtKv ]; then
 414         vtlog "No modules directory found"
 415         return
 416     elif [ -d /lib/modules/$vtKv/kernel/fs ]; then
 417         vtModPath=$($FIND /lib/modules/$vtKv/kernel/fs/ -name "*.ko*" | $HEAD -n1)
 418     elif [ -d /lib/modules/$vtKv/kernel ]; then
 419         vtModPath=$($FIND /lib/modules/$vtKv/kernel/ -name "xfs.ko*" | $HEAD -n1)
 420     elif [ -d /lib/modules/$vtKv/initrd ]; then
 421         vtModPath=$($FIND /lib/modules/$vtKv/initrd/ -name "xfs.ko*" | $HEAD -n1)
 422     fi
 423
 424
 425     if [ -z "$vtModPath" ]; then
 426         vtModPath=$($FIND /lib/modules/$vtKv/ -name "*.ko*" | $HEAD -n1)
 427     fi
 428
 429     vtModName=$($BUSYBOX_PATH/basename $vtModPath)
 430
 431     vtlog "template module is $vtModPath $vtModName"
 432
 433     if [ -z "$vtModPath" ]; then
 434         vtlog "No template module found"
 435         return
 436     elif echo $vtModPath | $GREP -q "[.]ko$"; then
 437         $BUSYBOX_PATH/cp -a $vtModPath  $VTOY_PATH/$vtModName
 438     elif echo $vtModPath | $GREP -q "[.]ko[.]xz$"; then
 439         $BUSYBOX_PATH/xzcat $vtModPath > $VTOY_PATH/$vtModName
 440     elif echo $vtModPath | $GREP -q "[.]ko[.]gz$"; then
 441         $BUSYBOX_PATH/zcat $vtModPath > $VTOY_PATH/$vtModName
 442     elif echo $vtModPath | $GREP -q "[.]ko[.]zst$"; then
 443         $VTOY_PATH/tool/zstdcat $vtModPath > $VTOY_PATH/$vtModName
 444     else
 445         vtlog "unsupport module type"
 446         return
 447     fi
 448
 449
 450
 451     #step1: modify vermagic/mod crc/relocation
 452     vtlog "$VTOY_PATH/tool/vtoykmod -u $vtKVMajor $vtKVMinor $VTOY_PATH/tool/$vtKoName $VTOY_PATH/$vtModName $vtDebug"
 453     $VTOY_PATH/tool/vtoykmod -u $vtKVMajor $vtKVMinor $VTOY_PATH/tool/$vtKoName $VTOY_PATH/$vtModName $vtDebug >>$VTLOG 2>&1
 454
 455     #step2: fill parameters
 456     vtPgsize=$($VTOY_PATH/tool/vtoyksym -p)
 457
 458     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 $vtDebug"
 459
 460
 461     vtlog "$VTOY_PATH/tool/vtoykmod -f $vtPrams"
 462     $VTOY_PATH/tool/vtoykmod -f $vtPrams >>$VTLOG 2>&1
 463
 464
 465     vtlog "insmod $VTOY_PATH/tool/$vtKoName"
 466     $BUSYBOX_PATH/insmod $VTOY_PATH/tool/$vtKoName  >>$VTLOG 2>&1
 467
 468     if $GREP -q 'dm_patch' /proc/modules; then
 469         vtlog "dm_patch module OK"
 470         echo "done" > $VTOY_PATH/dm_patch_done
 471     else
 472         vtlog "dm_patch module FAILED"
 473     fi
 474
 475 }
 476
 477 create_ventoy_device_mapper() {
 478     vtlog "create_ventoy_device_mapper $*"
 479
 480     VT_DM_BIN=$(ventoy_find_bin_path dmsetup)
 481     if [ -z "$VT_DM_BIN" ]; then
 482         vtlog "no dmsetup avaliable, lastly try inbox dmsetup"
 483         VT_DM_BIN=$VTOY_PATH/tool/dmsetup
 484     fi
 485
 486     vtlog "dmsetup avaliable in system $VT_DM_BIN"
 487
 488     if ventoy_check_dm_module "$1"; then
 489         vtlog "device-mapper module check success"
 490     else
 491         vterr "Error: no dm module avaliable"
 492     fi
 493
 494     $VTOY_PATH/tool/vtoydm -p -f $VTOY_PATH/ventoy_image_map -d $1 > $VTOY_PATH/ventoy_dm_table
 495
 496
 497     vtLevel1=$($CAT /proc/sys/kernel/printk | $AWK '{print $1}')
 498     vtLevel2=$($CAT /proc/sys/kernel/printk | $AWK '{print $2}')
 499     vtLevel3=$($CAT /proc/sys/kernel/printk | $AWK '{print $3}')
 500     vtLevel4=$($CAT /proc/sys/kernel/printk | $AWK '{print $4}')
 501     if ventoy_need_dm_patch; then
 502         ventoy_dm_patch
 503         #suppress printk message
 504         echo 0 $vtLevel2 0 $vtLevel4 > /proc/sys/kernel/printk
 505     fi
 506
 507     if [ -z "$2" ]; then
 508         $VT_DM_BIN create ventoy $VTOY_PATH/ventoy_dm_table >>$VTLOG 2>&1
 509     else
 510         $VT_DM_BIN "$2" create ventoy $VTOY_PATH/ventoy_dm_table >>$VTLOG 2>&1
 511     fi
 512
 513     if ventoy_need_dm_patch; then
 514         #recover printk level
 515         echo $vtLevel1 $vtLevel2 $vtLevel3 $vtLevel4 > /proc/sys/kernel/printk
 516     fi
 517 }
 518
 519 create_persistent_device_mapper() {
 520     vtlog "create_persistent_device_mapper $*"
 521
 522     VT_DM_BIN=$(ventoy_find_bin_path dmsetup)
 523     if [ -z "$VT_DM_BIN" ]; then
 524         vtlog "no dmsetup avaliable, lastly try inbox dmsetup"
 525         VT_DM_BIN=$VTOY_PATH/tool/dmsetup
 526     fi
 527
 528     vtlog "dmsetup avaliable in system $VT_DM_BIN"
 529
 530     if ventoy_check_dm_module "$1"; then
 531         vtlog "device-mapper module check success"
 532     else
 533         vterr "Error: no dm module avaliable"
 534     fi
 535
 536     $VTOY_PATH/tool/vtoydm -p -f $VTOY_PATH/ventoy_persistent_map -d $1 > $VTOY_PATH/persistent_dm_table
 537
 538
 539     vtLevel1=$($CAT /proc/sys/kernel/printk | $AWK '{print $1}')
 540     vtLevel2=$($CAT /proc/sys/kernel/printk | $AWK '{print $2}')
 541     vtLevel3=$($CAT /proc/sys/kernel/printk | $AWK '{print $3}')
 542     vtLevel4=$($CAT /proc/sys/kernel/printk | $AWK '{print $4}')
 543     if [ -f $VTOY_PATH/dm_patch_done ]; then
 544         #suppress printk message
 545         echo 0 $vtLevel2 0 $vtLevel4 > /proc/sys/kernel/printk
 546     fi
 547
 548     $VT_DM_BIN create vtoy_persistent $VTOY_PATH/persistent_dm_table >>$VTLOG 2>&1
 549
 550     if [ -f $VTOY_PATH/dm_patch_done ]; then
 551         #recover printk level
 552         echo $vtLevel1 $vtLevel2 $vtLevel3 $vtLevel4 > /proc/sys/kernel/printk
 553     fi
 554 }
 555
 556
 557
 558 wait_for_ventoy_dm_disk_label() {
 559     DM=$($BUSYBOX_PATH/readlink $VTOY_DM_PATH)
 560     vtlog "wait_for_ventoy_dm_disk_label $DM ..."
 561
 562     for i in 0 1 2 3 4 5 6 7 8 9; do
 563         vtlog "i=$i ####### ls /dev/disk/by-label/"
 564         ls -l /dev/disk/by-label/ >> $VTLOG
 565
 566         if ls -l /dev/disk/by-label/ | $GREP -q "$DM"; then
 567             break
 568         else
 569             $SLEEP 1
 570         fi
 571     done
 572 }
 573
 574 install_udeb_pkg() {
 575     if ! [ -e "$1" ]; then
 576         $BUSYBOX_PATH/false
 577         return
 578     fi
 579
 580     if [ -d /tmp/vtoy_udeb ]; then
 581         $BUSYBOX_PATH/rm -rf /tmp/vtoy_udeb
 582     fi
 583
 584     $BUSYBOX_PATH/mkdir -p /tmp/vtoy_udeb
 585     $BUSYBOX_PATH/cp -a "$1" /tmp/vtoy_udeb/
 586
 587     CURDIR=$($BUSYBOX_PATH/pwd)
 588     cd /tmp/vtoy_udeb
 589
 590     $BUSYBOX_PATH/ar x "$1"
 591
 592     if [ -e 'data.tar.gz' ]; then
 593         $BUSYBOX_PATH/tar -xzf data.tar.gz -C /
 594     elif [ -e 'data.tar.xz' ]; then
 595         $BUSYBOX_PATH/tar -xJf data.tar.xz -C /
 596     elif [ -e 'data.tar.bz2' ]; then
 597         $BUSYBOX_PATH/tar -xjf data.tar.bz2 -C /
 598     elif [ -e 'data.tar.lzma' ]; then
 599         $BUSYBOX_PATH/tar -xaf data.tar.lzma -C /
 600     fi
 601
 602     if [ -e 'control.tar.gz' ]; then
 603         $BUSYBOX_PATH/tar -xzf control.tar.gz -C /
 604     elif [ -e 'control.tar.xz' ]; then
 605         $BUSYBOX_PATH/tar -xJf control.tar.xz -C /
 606     elif [ -e 'control.tar.bz2' ]; then
 607         $BUSYBOX_PATH/tar -xjf control.tar.bz2 -C /
 608     elif [ -e 'control.tar.lzma' ]; then
 609         $BUSYBOX_PATH/tar -xaf control.tar.lzma -C /
 610     fi
 611
 612     cd $CURDIR
 613     $BUSYBOX_PATH/rm -rf /tmp/vtoy_udeb
 614     $BUSYBOX_PATH/true
 615 }
 616
 617
 618 install_udeb_from_line() {
 619     vtlog "install_udeb_from_line $1"
 620
 621     if ! [ -b "$2" ]; then
 622         vterr "disk #$2# not exist"
 623         return
 624     fi
 625
 626     sector=$(echo $1 | $AWK '{print $(NF-1)}')
 627     length=$(echo $1 | $AWK '{print $NF}')
 628     vtlog "sector=$sector  length=$length"
 629
 630     $VTOY_PATH/tool/vtoydm -e -f $VTOY_PATH/ventoy_image_map -d ${2} -s $sector -l $length -o /tmp/xxx.udeb
 631     if [ -e /tmp/xxx.udeb ]; then
 632         vtlog "extract udeb file from iso success"
 633     else
 634         vterr "extract udeb file from iso fail"
 635         return
 636     fi
 637
 638     install_udeb_pkg /tmp/xxx.udeb
 639     $BUSYBOX_PATH/rm -f /tmp/xxx.udeb
 640 }
 641
 642 extract_file_from_line() {
 643     vtlog "extract_file_from_line $1 disk=#$2#"
 644     if ! [ -b "$2" ]; then
 645         vterr "disk #$2# not exist"
 646         return
 647     fi
 648
 649     sector=$(echo $1 | $AWK '{print $(NF-1)}')
 650     length=$(echo $1 | $AWK '{print $NF}')
 651     vtlog "sector=$sector  length=$length"
 652
 653     $VTOY_PATH/tool/vtoydm -e -f $VTOY_PATH/ventoy_image_map -d ${2} -s $sector -l $length -o $3
 654     if [ -e $3 ]; then
 655         vtlog "extract file from iso success"
 656         $BUSYBOX_PATH/true
 657     else
 658         vterr "extract file from iso fail"
 659         $BUSYBOX_PATH/false
 660     fi
 661 }
 662
 663 extract_rpm_from_line() {
 664     vtlog "extract_rpm_from_line $1 disk=#$2#"
 665
 666     if ! [ -b "$2" ]; then
 667         vterr "disk #$2# not exist"
 668         return
 669     fi
 670
 671     sector=$(echo $1 | $AWK '{print $(NF-1)}')
 672     length=$(echo $1 | $AWK '{print $NF}')
 673     vtlog "sector=$sector  length=$length"
 674
 675     $VTOY_PATH/tool/vtoydm -e -f $VTOY_PATH/ventoy_image_map -d ${2} -s $sector -l $length -o /tmp/xxx.rpm
 676     if [ -e /tmp/xxx.rpm ]; then
 677         vtlog "extract rpm file from iso success"
 678     else
 679         vterr "extract rpm file from iso fail"
 680         return
 681     fi
 682
 683     CURPWD=$($BUSYBOX_PATH/pwd)
 684
 685     $BUSYBOX_PATH/mkdir -p $VTOY_PATH/rpm
 686     cd $VTOY_PATH/rpm
 687     vtlog "extract rpm..."
 688     $BUSYBOX_PATH/rpm2cpio /tmp/xxx.rpm | $BUSYBOX_PATH/cpio -idm 2>>$VTLOG
 689     cd $CURPWD
 690
 691     $BUSYBOX_PATH/rm -f /tmp/xxx.rpm
 692 }
 693
 694 install_rpm_from_line() {
 695     vtlog "install_rpm_from_line $1 disk=#$2#"
 696
 697     if ! [ -b "$2" ]; then
 698         vterr "disk #$2# not exist"
 699         return
 700     fi
 701
 702     sector=$(echo $1 | $AWK '{print $(NF-1)}')
 703     length=$(echo $1 | $AWK '{print $NF}')
 704     vtlog "sector=$sector  length=$length"
 705
 706     $VTOY_PATH/tool/vtoydm -e -f $VTOY_PATH/ventoy_image_map -d ${2} -s $sector -l $length -o /tmp/xxx.rpm
 707     if [ -e /tmp/xxx.rpm ]; then
 708         vtlog "extract rpm file from iso success"
 709     else
 710         vterr "extract rpm file from iso fail"
 711         return
 712     fi
 713
 714     CURPWD=$($BUSYBOX_PATH/pwd)
 715
 716     cd /
 717     vtlog "install rpm..."
 718     $BUSYBOX_PATH/rpm2cpio /tmp/xxx.rpm | $BUSYBOX_PATH/cpio -idm 2>>$VTLOG
 719     cd $CURPWD
 720
 721     $BUSYBOX_PATH/rm -f /tmp/xxx.rpm
 722 }
 723
 724 dump_whole_iso_file() {
 725    $VTOY_PATH/tool/vtoydm -p -f $VTOY_PATH/ventoy_image_map -d $usb_disk | while read vtline; do
 726         vtlog "dmtable line: $vtline"
 727         vtcount=$(echo $vtline | $AWK '{print $2}')
 728         vtoffset=$(echo $vtline | $AWK '{print $NF}')
 729         $BUSYBOX_PATH/dd if=$usb_disk of="$1" bs=512 count=$vtcount skip=$vtoffset oflag=append conv=notrunc
 730     done
 731 }
 732
 733 ventoy_copy_device_mapper() {
 734     if [ -L $VTOY_DM_PATH ]; then
 735         vtlog "replace block device link $1..."
 736         $BUSYBOX_PATH/mv "$1" $VTOY_PATH/dev_backup_${1#/dev/}
 737         VT_MAPPER_LINK=$($BUSYBOX_PATH/readlink $VTOY_DM_PATH)
 738         $BUSYBOX_PATH/cp -a "/dev/mapper/$VT_MAPPER_LINK" "$1"
 739     elif [ -b $VTOY_DM_PATH ]; then
 740         vtlog "replace block device $1..."
 741         $BUSYBOX_PATH/mv "$1" $VTOY_PATH/dev_backup_${1#/dev/}
 742         $BUSYBOX_PATH/cp -a "$VTOY_DM_PATH" "$1"
 743     else
 744
 745         vtlog "$VTOY_DM_PATH not exist, now check /dev/dm-X ..."
 746         VT_DM_BIN=$(ventoy_find_bin_path dmsetup)
 747         if [ -z "$VT_DM_BIN" ]; then
 748             vtlog "no dmsetup avaliable, lastly try inbox dmsetup"
 749             VT_DM_BIN=$VTOY_PATH/tool/dmsetup
 750         fi
 751
 752         DM_VT_ID=$($VT_DM_BIN ls | $GREP ventoy | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
 753         vtlog "DM_VT_ID=$DM_VT_ID ..."
 754         $BUSYBOX_PATH/mv "$1" $VTOY_PATH/dev_backup_${1#/dev/}
 755         $BUSYBOX_PATH/mknod -m 0666 "$1" b $DM_VT_ID
 756     fi
 757 }
 758
 759 # create link for device-mapper
 760 ventoy_create_persistent_link() {
 761     blkdev_num=$($VTOY_PATH/tool/dmsetup ls | grep vtoy_persistent | sed 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1:\2/')
 762     vtDM=$(ventoy_find_dm_id ${blkdev_num})
 763
 764     if ! [ -d /dev/disk/by-label ]; then
 765         mkdir -p /dev/disk/by-label
 766     fi
 767
 768     VTLABEL=$($BUSYBOX_PATH/blkid /dev/$vtDM | $SED 's/.*LABEL="\([^"]*\)".*/\1/')
 769     if [ -z "$VTLABEL" ]; then
 770         VTLABEL=casper-rw
 771     fi
 772
 773     vtlog "Persistent Label: ##${VTLABEL}##"
 774
 775     if ! [ -e /dev/disk/by-label/$VTLABEL ]; then
 776         vtOldDir=$PWD
 777         cd /dev/disk/by-label
 778         ln -s ../../$vtDM $VTLABEL
 779         cd $vtOldDir
 780     fi
 781 }
 782
 783 ventoy_partname_to_diskname() {
 784     if echo $1 | $EGREP -q "nvme.*p[0-9]$|mmc.*p[0-9]$|nbd.*p[0-9]$"; then
 785         echo -n "${1:0:-2}"
 786     else
 787         echo -n "${1:0:-1}"
 788     fi
 789 }
 790
 791 ventoy_diskname_to_partname() {
 792     if echo $1 | $EGREP -q "nvme.*p[0-9]$|mmc.*p[0-9]$|nbd.*p[0-9]$"; then
 793         echo -n "${1}p$2"
 794     else
 795         echo -n "${1}$2"
 796     fi
 797 }
 798
 799 ventoy_udev_disk_common_hook() {
 800     if echo $1 | $EGREP -q "nvme.*p[0-9]$|mmc.*p[0-9]$|nbd.*p[0-9]$"; then
 801         VTDISK="${1:0:-2}"
 802     else
 803         VTDISK="${1:0:-1}"
 804     fi
 805
 806     if [ -e /vtoy/vtoy ]; then
 807         VTRWMOD=""
 808     else
 809         VTRWMOD="--readonly"
 810     fi
 811
 812     # create device mapper for iso image file
 813     if create_ventoy_device_mapper "/dev/$VTDISK" $VTRWMOD; then
 814         vtlog "==== create ventoy device mapper success ===="
 815     else
 816         vtlog "==== create ventoy device mapper failed ===="
 817
 818         $SLEEP 3
 819
 820         if $GREP -q "/dev/$VTDISK" /proc/mounts; then
 821             $GREP "/dev/$VTDISK" /proc/mounts | while read vtLine; do
 822                 vtPart=$(echo $vtLine | $AWK '{print $1}')
 823                 vtMnt=$(echo $vtLine | $AWK '{print $2}')
 824                 vtlog "$vtPart is mounted on $vtMnt  now umount it ..."
 825                 $BUSYBOX_PATH/umount $vtMnt
 826             done
 827         fi
 828
 829         if create_ventoy_device_mapper "/dev/$VTDISK" $VTRWMOD; then
 830             vtlog "==== create ventoy device mapper success after retry ===="
 831         else
 832             vtlog "==== create ventoy device mapper failed after retry ===="
 833             return
 834         fi
 835     fi
 836
 837     if [ "$2" = "noreplace" ]; then
 838         vtlog "no need to replace block device"
 839     else
 840         ventoy_copy_device_mapper "/dev/$1"
 841     fi
 842
 843     if [ -f $VTOY_PATH/ventoy_persistent_map ]; then
 844         create_persistent_device_mapper "/dev/$VTDISK"
 845         ventoy_create_persistent_link
 846     fi
 847
 848     if $GREP -q 'dm_patch' /proc/modules; then
 849         vtlog "remove dm_patch module."
 850         $BUSYBOX_PATH/rmmod dm_patch
 851     fi
 852 }
 853
 854 ventoy_create_dev_ventoy_part() {
 855     blkdev_num=$($VTOY_PATH/tool/dmsetup ls | $GREP ventoy | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
 856     $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy b $blkdev_num
 857
 858     if [ -e /vtoy_dm_table ]; then
 859         vtPartid=1
 860
 861         vtLevel1=$($CAT /proc/sys/kernel/printk | $AWK '{print $1}')
 862         vtLevel2=$($CAT /proc/sys/kernel/printk | $AWK '{print $2}')
 863         vtLevel3=$($CAT /proc/sys/kernel/printk | $AWK '{print $3}')
 864         vtLevel4=$($CAT /proc/sys/kernel/printk | $AWK '{print $4}')
 865         if [ -f $VTOY_PATH/dm_patch_done ]; then
 866             #suppress printk message
 867             echo 0 $vtLevel2 0 $vtLevel4 > /proc/sys/kernel/printk
 868         fi
 869
 870         $CAT /vtoy_dm_table | while read vtline; do
 871             echo $vtline > /ventoy/dm_table_part${vtPartid}
 872             $VTOY_PATH/tool/dmsetup create ventoy${vtPartid} /ventoy/dm_table_part${vtPartid}
 873
 874             blkdev_num=$($VTOY_PATH/tool/dmsetup ls | $GREP ventoy${vtPartid} | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
 875             $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy${vtPartid} b $blkdev_num
 876
 877             vtPartid=$(expr $vtPartid + 1)
 878         done
 879
 880         if [ -f $VTOY_PATH/dm_patch_done ]; then
 881             #recover printk level
 882             echo $vtLevel1 $vtLevel2 $vtLevel3 $vtLevel4 > /proc/sys/kernel/printk
 883         fi
 884     fi
 885 }
 886
 887
 888 ventoy_create_chromeos_ventoy_part() {
 889     blkdev_num=$($VTOY_PATH/tool/dmsetup ls | $GREP ventoy | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
 890     $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy b $blkdev_num
 891
 892     if [ -e /vtoy_dm_table ]; then
 893         vtPartid=1
 894
 895         $CAT /vtoy_dm_table | while read vtline; do
 896             echo $vtline > /ventoy/dm_table_part${vtPartid}
 897
 898             if [ $vtPartid -eq $1 ]; then
 899                 $VTOY_PATH/tool/dmsetup create ventoy${vtPartid} /ventoy/dm_table_part${vtPartid} --readonly
 900             else
 901                 $VTOY_PATH/tool/dmsetup create ventoy${vtPartid} /ventoy/dm_table_part${vtPartid}
 902             fi
 903
 904             blkdev_num=$($VTOY_PATH/tool/dmsetup ls | $GREP ventoy${vtPartid} | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
 905             $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy${vtPartid} b $blkdev_num
 906
 907             vtPartid=$(expr $vtPartid + 1)
 908         done
 909     fi
 910 }
 911
 912 is_inotify_ventoy_part() {
 913     if echo $1 | $GREP -q "2$"; then
 914         if ! [ -e /sys/block/$1 ]; then
 915             if [ -e /sys/class/block/$1 ]; then
 916                 if echo $1 | $EGREP -q "nvme|mmc|nbd"; then
 917                     vtShortName=${1:0:-2}
 918                 else
 919                     vtShortName=${1:0:-1}
 920                 fi
 921
 922                 if [ -e /dev/$vtShortName ]; then
 923                     if [ "$VTOY_VLNK_BOOT" = "01" ]; then
 924                         vtOrgDiskName=$($VTOY_PATH/tool/vtoydump -t $VTOY_PATH/ventoy_os_param)
 925                         [ "$vtOrgDiskName" = "/dev/$vtShortName" ]
 926                     else
 927                         $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c $vtShortName
 928                     fi
 929                     return
 930                 fi
 931             fi
 932         fi
 933     fi
 934
 935     [ "1" = "0" ]
 936 }
 937
 938 ventoy_find_dm_id() {
 939     for vt in $($BUSYBOX_PATH/ls /sys/block/); do
 940         if [ "${vt:0:3}" = "dm-" ]; then
 941             vtMajorMinor=$($CAT /sys/block/$vt/dev)
 942             if [ "$vtMajorMinor" = "$1" ]; then
 943                 echo ${vt}
 944                 return
 945             fi
 946         fi
 947     done
 948     echo 'xx'
 949 }
 950
 951 ventoy_swap_device() {
 952     mv $1 $VTOY_PATH/swap_tmp_dev
 953     mv $2 $1
 954     mv $VTOY_PATH/swap_tmp_dev $2
 955 }
 956
 957 ventoy_extract_vtloopex() {
 958     vtCurPwd=$PWD
 959     $BUSYBOX_PATH/mkdir -p $VTOY_PATH/partmnt $VTOY_PATH/vtloopex
 960     $BUSYBOX_PATH/mount -o ro -t vfat $1  $VTOY_PATH/partmnt
 961     cd $VTOY_PATH/vtloopex
 962     $CAT $VTOY_PATH/partmnt/ventoy/vtloopex.cpio | $BUSYBOX_PATH/cpio -idm >> $VTLOG 2>&1
 963     $BUSYBOX_PATH/umount $VTOY_PATH/partmnt
 964     $BUSYBOX_PATH/rm -rf $VTOY_PATH/partmnt
 965
 966     if [ -n "$2" ]; then
 967         cd $VTOY_PATH/vtloopex/$2/
 968         $BUSYBOX_PATH/tar -xJf vtloopex.tar.xz
 969     fi
 970
 971     cd $vtCurPwd
 972 }
 973
 974 ventoy_check_install_module_xz() {
 975     if [ -f "${1}.xz" ]; then
 976         $BUSYBOX_PATH/xz -d  "${1}.xz"
 977         $BUSYBOX_PATH/insmod "$1"
 978     fi
 979 }
 980
 981 ventoy_check_umount() {
 982     for vtLoop in 0 1 2 3 4 5 6 7 8 9; do
 983         $BUSYBOX_PATH/umount "$1" > /dev/null 2>&1
 984         if $BUSYBOX_PATH/mountpoint -q "$1"; then
 985             $SLEEP 1
 986         else
 987             break
 988         fi
 989     done
 990 }
 991
 992 ventoy_wait_dir() {
 993     vtdir=$1
 994     vtsec=0
 995
 996     while [ $vtsec -lt $2 ]; do
 997         if [ -d "$vtdir" ]; then
 998             break
 999         else
1000             $SLEEP 1
1001             vtsec=$(expr $vtsec + 1)
1002         fi
1003     done
1004 }