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 "insmode $vtline "
 213             $BUSYBOX_PATH/insmod $vtline >>$VTLOG 2>&1
 214         done
 215     fi
 216
 217     if $GREP -q 'device-mapper' /proc/devices; then
 218         vtlog "device-mapper found in /proc/devices after retry"
 219         $BUSYBOX_PATH/true; return
 220     else
 221         vtlog "device-mapper still NOT found in /proc/devices after retry"
 222         $BUSYBOX_PATH/false; return
 223     fi
 224 }
 225
 226 ventoy_need_dm_patch() {
 227     if [ "$VTOY_LINUX_REMOUNT" != "01" ]; then
 228         $BUSYBOX_PATH/false; return
 229     fi
 230
 231     if $GREP -q 'device-mapper' /proc/devices; then
 232         :
 233     else
 234         $BUSYBOX_PATH/false; return
 235     fi
 236
 237     if $GREP -q 'dm_patch' /proc/modules; then
 238         $BUSYBOX_PATH/false; return
 239     fi
 240
 241     vtMajorVer=$($BUSYBOX_PATH/uname -r | $AWK -F. '{print $1}')
 242     vtMinorVer=$($BUSYBOX_PATH/uname -r | $AWK -F. '{print $2}')
 243
 244     if [ $vtMajorVer -lt 3 ]; then
 245         $BUSYBOX_PATH/false; return
 246     elif [ $vtMajorVer -eq 3 -a $vtMinorVer -lt 10 ]; then
 247         $BUSYBOX_PATH/false; return
 248     fi
 249
 250
 251     $BUSYBOX_PATH/true
 252 }
 253
 254 ventoy_dm_patch() {
 255     vtMType=$($BUSYBOX_PATH/uname -m)
 256
 257     vtlog "######### ventoy_dm_patch ############"
 258
 259     if echo $vtMType | $EGREP -i -q "x86.64|amd64"; then
 260         vtKoName=dm_patch_64.ko
 261     elif echo $vtMType | $EGREP -i -q "i[3-6]86"; then
 262         vtKoName=dm_patch_32.ko
 263     else
 264         vtlog "unsupported machine type $vtMType"
 265         return
 266     fi
 267
 268     if [ -f $VTOY_PATH/tool/$vtKoName ]; then
 269         vtlog "/ventoy/tool/$vtKoName exist OK"
 270     else
 271         vtlog "/ventoy/tool/$vtKoName NOT exist"
 272         return
 273     fi
 274
 275     $CAT /proc/kallsyms | $BUSYBOX_PATH/sort > $VTOY_PATH/kallsyms
 276
 277     vtLine=$($VTOY_PATH/tool/vtoyksym dm_get_table_device $VTOY_PATH/kallsyms)
 278     get_addr=$(echo $vtLine | $AWK '{print $1}')
 279     get_size=$(echo $vtLine | $AWK '{print $2}')
 280
 281     vtLine=$($VTOY_PATH/tool/vtoyksym dm_put_table_device $VTOY_PATH/kallsyms)
 282     put_addr=$(echo $vtLine | $AWK '{print $1}')
 283     put_size=$(echo $vtLine | $AWK '{print $2}')
 284
 285     ro_addr=$($GREP ' set_memory_ro$' /proc/kallsyms | $AWK '{print $1}')
 286     rw_addr=$($GREP ' set_memory_rw$' /proc/kallsyms | $AWK '{print $1}')
 287     kprobe_reg_addr=$($GREP ' register_kprobe$' /proc/kallsyms | $AWK '{print $1}')
 288     kprobe_unreg_addr=$($GREP ' unregister_kprobe$' /proc/kallsyms | $AWK '{print $1}')
 289
 290     if [ "$VTOY_DEBUG_LEVEL" = "01" ]; then
 291         printk_addr=$($GREP ' printk$' /proc/kallsyms | $AWK '{print $1}')
 292         vtDebug="-v"
 293     else
 294         printk_addr=0
 295     fi
 296
 297     #printk_addr=$($GREP ' printk$' /proc/kallsyms | $AWK '{print $1}')
 298     #vtDebug="-v"
 299
 300     vtlog get_addr=$get_addr  get_size=$get_size
 301     vtlog put_addr=$put_addr  put_size=$put_size
 302     vtlog kprobe_reg_addr=$kprobe_reg_addr  kprobe_unreg_addr=$kprobe_unreg_addr
 303     vtlog ro_addr=$ro_addr  rw_addr=$rw_addr  printk_addr=$printk_addr
 304
 305     if [ "$get_addr" = "0" -o "$put_addr" = "0" ]; then
 306         vtlog "Invalid symbol address"
 307         return
 308     fi
 309     if [ "$ro_addr" = "0" -o "$rw_addr" = "0" ]; then
 310         vtlog "Invalid symbol address"
 311         return
 312     fi
 313
 314
 315     vtKv=$($BUSYBOX_PATH/uname -r)
 316
 317     if [ ! -d /lib/modules/$vtKv ]; then
 318         vtlog "No modules directory found"
 319         return
 320     elif [ -d /lib/modules/$vtKv/kernel/fs ]; then
 321         vtModPath=$($FIND /lib/modules/$vtKv/kernel/fs/ -name "*.ko*" | $HEAD -n1)
 322     else
 323         vtModPath=$($FIND /lib/modules/$vtKv/kernel/ -name "xfs.ko*" | $HEAD -n1)
 324     fi
 325
 326     if [ -z "$vtModPath" ]; then
 327         vtModPath=$($FIND /lib/modules/$vtKv/kernel/ -name "*.ko*" | $HEAD -n1)
 328     fi
 329
 330     vtModName=$($BUSYBOX_PATH/basename $vtModPath)
 331
 332     vtlog "template module is $vtModPath $vtModName"
 333
 334     if [ -z "$vtModPath" ]; then
 335         vtlog "No template module found"
 336         return
 337     elif echo $vtModPath | $GREP -q "[.]ko$"; then
 338         $BUSYBOX_PATH/cp -a $vtModPath  $VTOY_PATH/$vtModName
 339     elif echo $vtModPath | $GREP -q "[.]ko[.]xz$"; then
 340         $BUSYBOX_PATH/xzcat $vtModPath > $VTOY_PATH/$vtModName
 341     elif echo $vtModPath | $GREP -q "[.]ko[.]gz$"; then
 342         $BUSYBOX_PATH/zcat $vtModPath > $VTOY_PATH/$vtModName
 343     else
 344         vtlog "unsupport module type"
 345         return
 346     fi
 347
 348     #step1: modify vermagic/mod crc/relocation
 349     $VTOY_PATH/tool/vtoykmod -u $VTOY_PATH/tool/$vtKoName $VTOY_PATH/$vtModName $vtDebug
 350
 351     #step2: fill parameters
 352     vtPgsize=$($VTOY_PATH/tool/vtoyksym -p)
 353     $VTOY_PATH/tool/vtoykmod -f $VTOY_PATH/tool/$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 $vtDebug
 354
 355     $BUSYBOX_PATH/insmod $VTOY_PATH/tool/$vtKoName
 356
 357     if $GREP -q 'dm_patch' /proc/modules; then
 358         echo "done" > $VTOY_PATH/dm_patch_done
 359     fi
 360
 361 }
 362
 363 create_ventoy_device_mapper() {
 364     vtlog "create_ventoy_device_mapper $*"
 365
 366     VT_DM_BIN=$(ventoy_find_bin_path dmsetup)
 367     if [ -z "$VT_DM_BIN" ]; then
 368         vtlog "no dmsetup avaliable, lastly try inbox dmsetup"
 369         VT_DM_BIN=$VTOY_PATH/tool/dmsetup
 370     fi
 371
 372     vtlog "dmsetup avaliable in system $VT_DM_BIN"
 373
 374     if ventoy_check_dm_module "$1"; then
 375         vtlog "device-mapper module check success"
 376     else
 377         vterr "Error: no dm module avaliable"
 378     fi
 379
 380     $VTOY_PATH/tool/vtoydm -p -f $VTOY_PATH/ventoy_image_map -d $1 > $VTOY_PATH/ventoy_dm_table
 381
 382
 383     vtLevel1=$($CAT /proc/sys/kernel/printk | $AWK '{print $1}')
 384     vtLevel2=$($CAT /proc/sys/kernel/printk | $AWK '{print $2}')
 385     vtLevel3=$($CAT /proc/sys/kernel/printk | $AWK '{print $3}')
 386     vtLevel4=$($CAT /proc/sys/kernel/printk | $AWK '{print $4}')
 387     if ventoy_need_dm_patch; then
 388         ventoy_dm_patch
 389         #suppress printk message
 390         echo 0 $vtLevel2 0 $vtLevel4 > /proc/sys/kernel/printk
 391     fi
 392
 393     if [ -z "$2" ]; then
 394         $VT_DM_BIN create ventoy $VTOY_PATH/ventoy_dm_table >>$VTLOG 2>&1
 395     else
 396         $VT_DM_BIN "$2" create ventoy $VTOY_PATH/ventoy_dm_table >>$VTLOG 2>&1
 397     fi
 398
 399     if ventoy_need_dm_patch; then
 400         #recover printk level
 401         echo $vtLevel1 $vtLevel2 $vtLevel3 $vtLevel4 > /proc/sys/kernel/printk
 402     fi
 403 }
 404
 405 create_persistent_device_mapper() {
 406     vtlog "create_persistent_device_mapper $*"
 407
 408     VT_DM_BIN=$(ventoy_find_bin_path dmsetup)
 409     if [ -z "$VT_DM_BIN" ]; then
 410         vtlog "no dmsetup avaliable, lastly try inbox dmsetup"
 411         VT_DM_BIN=$VTOY_PATH/tool/dmsetup
 412     fi
 413
 414     vtlog "dmsetup avaliable in system $VT_DM_BIN"
 415
 416     if ventoy_check_dm_module "$1"; then
 417         vtlog "device-mapper module check success"
 418     else
 419         vterr "Error: no dm module avaliable"
 420     fi
 421
 422     $VTOY_PATH/tool/vtoydm -p -f $VTOY_PATH/ventoy_persistent_map -d $1 > $VTOY_PATH/persistent_dm_table
 423
 424
 425     vtLevel1=$($CAT /proc/sys/kernel/printk | $AWK '{print $1}')
 426     vtLevel2=$($CAT /proc/sys/kernel/printk | $AWK '{print $2}')
 427     vtLevel3=$($CAT /proc/sys/kernel/printk | $AWK '{print $3}')
 428     vtLevel4=$($CAT /proc/sys/kernel/printk | $AWK '{print $4}')
 429     if [ -f $VTOY_PATH/dm_patch_done ]; then
 430         #suppress printk message
 431         echo 0 $vtLevel2 0 $vtLevel4 > /proc/sys/kernel/printk
 432     fi
 433
 434     $VT_DM_BIN create vtoy_persistent $VTOY_PATH/persistent_dm_table >>$VTLOG 2>&1
 435
 436     if [ -f $VTOY_PATH/dm_patch_done ]; then
 437         #recover printk level
 438         echo $vtLevel1 $vtLevel2 $vtLevel3 $vtLevel4 > /proc/sys/kernel/printk
 439     fi
 440 }
 441
 442
 443
 444 wait_for_ventoy_dm_disk_label() {
 445     DM=$($BUSYBOX_PATH/readlink $VTOY_DM_PATH)
 446     vtlog "wait_for_ventoy_dm_disk_label $DM ..."
 447
 448     for i in 0 1 2 3 4 5 6 7 8 9; do
 449         vtlog "i=$i ####### ls /dev/disk/by-label/"
 450         ls -l /dev/disk/by-label/ >> $VTLOG
 451
 452         if ls -l /dev/disk/by-label/ | $GREP -q "$DM"; then
 453             break
 454         else
 455             $SLEEP 1
 456         fi
 457     done
 458 }
 459
 460 install_udeb_pkg() {
 461     if ! [ -e "$1" ]; then
 462         $BUSYBOX_PATH/false
 463         return
 464     fi
 465
 466     if [ -d /tmp/vtoy_udeb ]; then
 467         $BUSYBOX_PATH/rm -rf /tmp/vtoy_udeb
 468     fi
 469
 470     $BUSYBOX_PATH/mkdir -p /tmp/vtoy_udeb
 471     $BUSYBOX_PATH/cp -a "$1" /tmp/vtoy_udeb/
 472
 473     CURDIR=$($BUSYBOX_PATH/pwd)
 474     cd /tmp/vtoy_udeb
 475
 476     $BUSYBOX_PATH/ar x "$1"
 477
 478     if [ -e 'data.tar.gz' ]; then
 479         $BUSYBOX_PATH/tar -xzf data.tar.gz -C /
 480     elif [ -e 'data.tar.xz' ]; then
 481         $BUSYBOX_PATH/tar -xJf data.tar.xz -C /
 482     elif [ -e 'data.tar.bz2' ]; then
 483         $BUSYBOX_PATH/tar -xjf data.tar.bz2 -C /
 484     elif [ -e 'data.tar.lzma' ]; then
 485         $BUSYBOX_PATH/tar -xaf data.tar.lzma -C /
 486     fi
 487
 488     if [ -e 'control.tar.gz' ]; then
 489         $BUSYBOX_PATH/tar -xzf control.tar.gz -C /
 490     elif [ -e 'control.tar.xz' ]; then
 491         $BUSYBOX_PATH/tar -xJf control.tar.xz -C /
 492     elif [ -e 'control.tar.bz2' ]; then
 493         $BUSYBOX_PATH/tar -xjf control.tar.bz2 -C /
 494     elif [ -e 'control.tar.lzma' ]; then
 495         $BUSYBOX_PATH/tar -xaf control.tar.lzma -C /
 496     fi
 497
 498     cd $CURDIR
 499     $BUSYBOX_PATH/rm -rf /tmp/vtoy_udeb
 500     $BUSYBOX_PATH/true
 501 }
 502
 503
 504 install_udeb_from_line() {
 505     vtlog "install_udeb_from_line $1"
 506
 507     if ! [ -b "$2" ]; then
 508         vterr "disk #$2# not exist"
 509         return
 510     fi
 511
 512     sector=$(echo $1 | $AWK '{print $(NF-1)}')
 513     length=$(echo $1 | $AWK '{print $NF}')
 514     vtlog "sector=$sector  length=$length"
 515
 516     $VTOY_PATH/tool/vtoydm -e -f $VTOY_PATH/ventoy_image_map -d ${2} -s $sector -l $length -o /tmp/xxx.udeb
 517     if [ -e /tmp/xxx.udeb ]; then
 518         vtlog "extract udeb file from iso success"
 519     else
 520         vterr "extract udeb file from iso fail"
 521         return
 522     fi
 523
 524     install_udeb_pkg /tmp/xxx.udeb
 525     $BUSYBOX_PATH/rm -f /tmp/xxx.udeb
 526 }
 527
 528 extract_file_from_line() {
 529     vtlog "extract_file_from_line $1 disk=#$2#"
 530     if ! [ -b "$2" ]; then
 531         vterr "disk #$2# not exist"
 532         return
 533     fi
 534
 535     sector=$(echo $1 | $AWK '{print $(NF-1)}')
 536     length=$(echo $1 | $AWK '{print $NF}')
 537     vtlog "sector=$sector  length=$length"
 538
 539     $VTOY_PATH/tool/vtoydm -e -f $VTOY_PATH/ventoy_image_map -d ${2} -s $sector -l $length -o $3
 540     if [ -e $3 ]; then
 541         vtlog "extract file from iso success"
 542         $BUSYBOX_PATH/true
 543     else
 544         vterr "extract file from iso fail"
 545         $BUSYBOX_PATH/false
 546     fi
 547 }
 548
 549 extract_rpm_from_line() {
 550     vtlog "extract_rpm_from_line $1 disk=#$2#"
 551
 552     if ! [ -b "$2" ]; then
 553         vterr "disk #$2# not exist"
 554         return
 555     fi
 556
 557     sector=$(echo $1 | $AWK '{print $(NF-1)}')
 558     length=$(echo $1 | $AWK '{print $NF}')
 559     vtlog "sector=$sector  length=$length"
 560
 561     $VTOY_PATH/tool/vtoydm -e -f $VTOY_PATH/ventoy_image_map -d ${2} -s $sector -l $length -o /tmp/xxx.rpm
 562     if [ -e /tmp/xxx.rpm ]; then
 563         vtlog "extract rpm file from iso success"
 564     else
 565         vterr "extract rpm file from iso fail"
 566         return
 567     fi
 568
 569     CURPWD=$($BUSYBOX_PATH/pwd)
 570
 571     $BUSYBOX_PATH/mkdir -p $VTOY_PATH/rpm
 572     cd $VTOY_PATH/rpm
 573     vtlog "extract rpm..."
 574     $BUSYBOX_PATH/rpm2cpio /tmp/xxx.rpm | $BUSYBOX_PATH/cpio -idm 2>>$VTLOG
 575     cd $CURPWD
 576
 577     $BUSYBOX_PATH/rm -f /tmp/xxx.rpm
 578 }
 579
 580 install_rpm_from_line() {
 581     vtlog "install_rpm_from_line $1 disk=#$2#"
 582
 583     if ! [ -b "$2" ]; then
 584         vterr "disk #$2# not exist"
 585         return
 586     fi
 587
 588     sector=$(echo $1 | $AWK '{print $(NF-1)}')
 589     length=$(echo $1 | $AWK '{print $NF}')
 590     vtlog "sector=$sector  length=$length"
 591
 592     $VTOY_PATH/tool/vtoydm -e -f $VTOY_PATH/ventoy_image_map -d ${2} -s $sector -l $length -o /tmp/xxx.rpm
 593     if [ -e /tmp/xxx.rpm ]; then
 594         vtlog "extract rpm file from iso success"
 595     else
 596         vterr "extract rpm file from iso fail"
 597         return
 598     fi
 599
 600     CURPWD=$($BUSYBOX_PATH/pwd)
 601
 602     cd /
 603     vtlog "install rpm..."
 604     $BUSYBOX_PATH/rpm2cpio /tmp/xxx.rpm | $BUSYBOX_PATH/cpio -idm 2>>$VTLOG
 605     cd $CURPWD
 606
 607     $BUSYBOX_PATH/rm -f /tmp/xxx.rpm
 608 }
 609
 610 dump_whole_iso_file() {
 611    $VTOY_PATH/tool/vtoydm -p -f $VTOY_PATH/ventoy_image_map -d $usb_disk | while read vtline; do
 612         vtlog "dmtable line: $vtline"
 613         vtcount=$(echo $vtline | $AWK '{print $2}')
 614         vtoffset=$(echo $vtline | $AWK '{print $NF}')
 615         $BUSYBOX_PATH/dd if=$usb_disk of="$1" bs=512 count=$vtcount skip=$vtoffset oflag=append conv=notrunc
 616     done
 617 }
 618
 619 ventoy_copy_device_mapper() {
 620     if [ -L $VTOY_DM_PATH ]; then
 621         vtlog "replace block device link $1..."
 622         $BUSYBOX_PATH/mv "$1" $VTOY_PATH/dev_backup_${1#/dev/}
 623         VT_MAPPER_LINK=$($BUSYBOX_PATH/readlink $VTOY_DM_PATH)
 624         $BUSYBOX_PATH/cp -a "/dev/mapper/$VT_MAPPER_LINK" "$1"
 625     elif [ -b $VTOY_DM_PATH ]; then
 626         vtlog "replace block device $1..."
 627         $BUSYBOX_PATH/mv "$1" $VTOY_PATH/dev_backup_${1#/dev/}
 628         $BUSYBOX_PATH/cp -a "$VTOY_DM_PATH" "$1"
 629     else
 630
 631         vtlog "$VTOY_DM_PATH not exist, now check /dev/dm-X ..."
 632         VT_DM_BIN=$(ventoy_find_bin_path dmsetup)
 633         if [ -z "$VT_DM_BIN" ]; then
 634             vtlog "no dmsetup avaliable, lastly try inbox dmsetup"
 635             VT_DM_BIN=$VTOY_PATH/tool/dmsetup
 636         fi
 637
 638         DM_VT_ID=$($VT_DM_BIN ls | $GREP ventoy | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
 639         vtlog "DM_VT_ID=$DM_VT_ID ..."
 640         $BUSYBOX_PATH/mv "$1" $VTOY_PATH/dev_backup_${1#/dev/}
 641         $BUSYBOX_PATH/mknod -m 0666 "$1" b $DM_VT_ID
 642     fi
 643 }
 644
 645 # create link for device-mapper
 646 ventoy_create_persistent_link() {
 647     blkdev_num=$($VTOY_PATH/tool/dmsetup ls | grep vtoy_persistent | sed 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1:\2/')
 648     vtDM=$(ventoy_find_dm_id ${blkdev_num})
 649
 650     if ! [ -d /dev/disk/by-label ]; then
 651         mkdir -p /dev/disk/by-label
 652     fi
 653
 654     VTLABEL=$($BUSYBOX_PATH/blkid /dev/$vtDM | $SED 's/.*LABEL="\([^"]*\)".*/\1/')
 655     if [ -z "$VTLABEL" ]; then
 656         VTLABEL=casper-rw
 657     fi
 658
 659     vtlog "Persistent Label: ##${VTLABEL}##"
 660
 661     if ! [ -e /dev/disk/by-label/$VTLABEL ]; then
 662         vtOldDir=$PWD
 663         cd /dev/disk/by-label
 664         ln -s ../../$vtDM $VTLABEL
 665         cd $vtOldDir
 666     fi
 667 }
 668
 669 ventoy_partname_to_diskname() {
 670     if echo $1 | $EGREP -q "nvme.*p[0-9]$|mmc.*p[0-9]$|nbd.*p[0-9]$"; then
 671         echo -n "${1:0:-2}"
 672     else
 673         echo -n "${1:0:-1}"
 674     fi
 675 }
 676
 677 ventoy_diskname_to_partname() {
 678     if echo $1 | $EGREP -q "nvme.*p[0-9]$|mmc.*p[0-9]$|nbd.*p[0-9]$"; then
 679         echo -n "${1}p$2"
 680     else
 681         echo -n "${1}$2"
 682     fi
 683 }
 684
 685 ventoy_udev_disk_common_hook() {
 686     if echo $1 | $EGREP -q "nvme.*p[0-9]$|mmc.*p[0-9]$|nbd.*p[0-9]$"; then
 687         VTDISK="${1:0:-2}"
 688     else
 689         VTDISK="${1:0:-1}"
 690     fi
 691
 692     if [ -e /vtoy/vtoy ]; then
 693         VTRWMOD=""
 694     else
 695         VTRWMOD="--readonly"
 696     fi
 697
 698     # create device mapper for iso image file
 699     if create_ventoy_device_mapper "/dev/$VTDISK" $VTRWMOD; then
 700         vtlog "==== create ventoy device mapper success ===="
 701     else
 702         vtlog "==== create ventoy device mapper failed ===="
 703
 704         $SLEEP 3
 705
 706         if $GREP -q "/dev/$VTDISK" /proc/mounts; then
 707             $GREP "/dev/$VTDISK" /proc/mounts | while read vtLine; do
 708                 vtPart=$(echo $vtLine | $AWK '{print $1}')
 709                 vtMnt=$(echo $vtLine | $AWK '{print $2}')
 710                 vtlog "$vtPart is mounted on $vtMnt  now umount it ..."
 711                 $BUSYBOX_PATH/umount $vtMnt
 712             done
 713         fi
 714
 715         if create_ventoy_device_mapper "/dev/$VTDISK" $VTRWMOD; then
 716             vtlog "==== create ventoy device mapper success after retry ===="
 717         else
 718             vtlog "==== create ventoy device mapper failed after retry ===="
 719             return
 720         fi
 721     fi
 722
 723     if [ "$2" = "noreplace" ]; then
 724         vtlog "no need to replace block device"
 725     else
 726         ventoy_copy_device_mapper "/dev/$1"
 727     fi
 728
 729     if [ -f $VTOY_PATH/ventoy_persistent_map ]; then
 730         create_persistent_device_mapper "/dev/$VTDISK"
 731         ventoy_create_persistent_link
 732     fi
 733
 734     if $GREP -q 'dm_patch' /proc/modules; then
 735         $BUSYBOX_PATH/rmmod dm_patch
 736     fi
 737 }
 738
 739 ventoy_create_dev_ventoy_part() {
 740     blkdev_num=$($VTOY_PATH/tool/dmsetup ls | $GREP ventoy | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
 741     $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy b $blkdev_num
 742
 743     if [ -e /vtoy_dm_table ]; then
 744         vtPartid=1
 745
 746         vtLevel1=$($CAT /proc/sys/kernel/printk | $AWK '{print $1}')
 747         vtLevel2=$($CAT /proc/sys/kernel/printk | $AWK '{print $2}')
 748         vtLevel3=$($CAT /proc/sys/kernel/printk | $AWK '{print $3}')
 749         vtLevel4=$($CAT /proc/sys/kernel/printk | $AWK '{print $4}')
 750         if [ -f $VTOY_PATH/dm_patch_done ]; then
 751             #suppress printk message
 752             echo 0 $vtLevel2 0 $vtLevel4 > /proc/sys/kernel/printk
 753         fi
 754
 755         $CAT /vtoy_dm_table | while read vtline; do
 756             echo $vtline > /ventoy/dm_table_part${vtPartid}
 757             $VTOY_PATH/tool/dmsetup create ventoy${vtPartid} /ventoy/dm_table_part${vtPartid}
 758
 759             blkdev_num=$($VTOY_PATH/tool/dmsetup ls | $GREP ventoy${vtPartid} | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
 760             $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy${vtPartid} b $blkdev_num
 761
 762             vtPartid=$(expr $vtPartid + 1)
 763         done
 764
 765         if [ -f $VTOY_PATH/dm_patch_done ]; then
 766             #recover printk level
 767             echo $vtLevel1 $vtLevel2 $vtLevel3 $vtLevel4 > /proc/sys/kernel/printk
 768         fi
 769     fi
 770 }
 771
 772
 773 ventoy_create_chromeos_ventoy_part() {
 774     blkdev_num=$($VTOY_PATH/tool/dmsetup ls | $GREP ventoy | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
 775     $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy b $blkdev_num
 776
 777     if [ -e /vtoy_dm_table ]; then
 778         vtPartid=1
 779
 780         $CAT /vtoy_dm_table | while read vtline; do
 781             echo $vtline > /ventoy/dm_table_part${vtPartid}
 782
 783             if [ $vtPartid -eq $1 ]; then
 784                 $VTOY_PATH/tool/dmsetup create ventoy${vtPartid} /ventoy/dm_table_part${vtPartid} --readonly
 785             else
 786                 $VTOY_PATH/tool/dmsetup create ventoy${vtPartid} /ventoy/dm_table_part${vtPartid}
 787             fi
 788
 789             blkdev_num=$($VTOY_PATH/tool/dmsetup ls | $GREP ventoy${vtPartid} | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
 790             $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy${vtPartid} b $blkdev_num
 791
 792             vtPartid=$(expr $vtPartid + 1)
 793         done
 794     fi
 795 }
 796
 797 is_inotify_ventoy_part() {
 798     if echo $1 | $GREP -q "2$"; then
 799         if ! [ -e /sys/block/$1 ]; then
 800             if [ -e /sys/class/block/$1 ]; then
 801                 if echo $1 | $EGREP -q "nvme|mmc|nbd"; then
 802                     vtShortName=${1:0:-2}
 803                 else
 804                     vtShortName=${1:0:-1}
 805                 fi
 806
 807                 if [ -e /dev/$vtShortName ]; then
 808                     if [ "$VTOY_VLNK_BOOT" = "01" ]; then
 809                         vtOrgDiskName=$($VTOY_PATH/tool/vtoydump -t $VTOY_PATH/ventoy_os_param)
 810                         [ "$vtOrgDiskName" = "/dev/$vtShortName" ]
 811                     else
 812                         $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c $vtShortName
 813                     fi
 814                     return
 815                 fi
 816             fi
 817         fi
 818     fi
 819
 820     [ "1" = "0" ]
 821 }
 822
 823 ventoy_find_dm_id() {
 824     for vt in $($BUSYBOX_PATH/ls /sys/block/); do
 825         if [ "${vt:0:3}" = "dm-" ]; then
 826             vtMajorMinor=$($CAT /sys/block/$vt/dev)
 827             if [ "$vtMajorMinor" = "$1" ]; then
 828                 echo ${vt}
 829                 return
 830             fi
 831         fi
 832     done
 833     echo 'xx'
 834 }
 835
 836 ventoy_swap_device() {
 837     mv $1 $VTOY_PATH/swap_tmp_dev
 838     mv $2 $1
 839     mv $VTOY_PATH/swap_tmp_dev $2
 840 }
 841
 842 ventoy_extract_vtloopex() {
 843     vtCurPwd=$PWD
 844     $BUSYBOX_PATH/mkdir -p $VTOY_PATH/partmnt $VTOY_PATH/vtloopex
 845     $BUSYBOX_PATH/mount -o ro -t vfat $1  $VTOY_PATH/partmnt
 846     cd $VTOY_PATH/vtloopex
 847     $CAT $VTOY_PATH/partmnt/ventoy/vtloopex.cpio | $BUSYBOX_PATH/cpio -idm >> $VTLOG 2>&1
 848     $BUSYBOX_PATH/umount $VTOY_PATH/partmnt
 849     $BUSYBOX_PATH/rm -rf $VTOY_PATH/partmnt
 850
 851     if [ -n "$2" ]; then
 852         cd $VTOY_PATH/vtloopex/$2/
 853         $BUSYBOX_PATH/tar -xJf vtloopex.tar.xz
 854     fi
 855
 856     cd $vtCurPwd
 857 }
 858
 859 ventoy_check_install_module_xz() {
 860     if [ -f "${1}.xz" ]; then
 861         $BUSYBOX_PATH/xz -d  "${1}.xz"
 862         $BUSYBOX_PATH/insmod "$1"
 863     fi
 864 }