{"id":193,"date":"2010-04-18T00:25:26","date_gmt":"2010-04-18T09:25:26","guid":{"rendered":"\/blog\/?p=193"},"modified":"2023-09-21T09:39:12","modified_gmt":"2023-09-21T00:39:12","slug":"ddk-driverextension-%ea%b3%bc-deviceextension%ec%9d%98-%ec%b0%a8%ec%9d%b4%ec%a0%90","status":"publish","type":"post","link":"https:\/\/hasu0707.duckdns.org\/blog\/?p=193","title":{"rendered":"[DDK] DriverExtension \uacfc DeviceExtension\uc758 \ucc28\uc774\uc810"},"content":{"rendered":"\n

\uc77c\ub2e8 DriverExtension<\/font>\uc5d0 \ub300\ud574\uc11c \n\uc54c\uc544\ubcf4\uba74,
\n<\/p>

\n
  1. typedef<\/font><\/strong><\/span> <\/span>struct<\/font><\/strong><\/span> _DRIVER_EXTENSION \n  <\/span><\/span> \n<\/li>
  2. {   <\/span> \n<\/li>
  3.      PDRIVER_OBJECT DriverObject;   <\/span> \n<\/li>
  4.      <\/span>LONG<\/font><\/strong><\/span> * AddDevice;   <\/span> \n<\/li>
  5.      <\/span>ULONG<\/font><\/strong><\/span> Count;   <\/span> \n<\/li>
  6.      UNICODE_STRING ServiceKeyName;   <\/span> \n<\/li>
  7.      PIO_CLIENT_EXTENSION ClientDriverExtension;   <\/span> \n<\/li>
  8.      PFS_FILTER_CALLBACKS FsFilterCallbacks;   <\/span> \n<\/li>
  9. } DRIVER_EXTENSION, *PDRIVER_EXTENSION;  <\/span><\/li><\/ol><\/div>\n
    <TEXTAREA class=\"cpp\" style=\"DISPLAY: none\" name=code \nrows=10 cols=60>typedef struct _DRIVER_EXTENSION { PDRIVER_OBJECT \nDriverObject; LONG * AddDevice; ULONG Count; UNICODE_STRING ServiceKeyName; \nPIO_CLIENT_EXTENSION ClientDriverExtension; PFS_FILTER_CALLBACKS \nFsFilterCallbacks; } DRIVER_EXTENSION, *PDRIVER_EXTENSION; <\/TEXTAREA> \n

    DriverExtension\uc740 \uc2dc\uc791\ud558\ub294 DriverEntry \ub8e8\ud2f4\uc5d0\uc11c \ud560\ub2f9\ub418\uba70 \ub4dc\ub77c\uc774\ubc84\uc758 \uc804\uc5ed\uc801\uc778 \uc790\ub8cc\ub97c \uc800\uc7a5\ud560\ub54c \uc0ac\uc6a9\ub41c\ub2e4. \n

    DeviceExtension\uacfc \uac70\uc758 \ud761\uc0ac\ud55c \uc758\ubbf8\uc774\uc9c0\ub9cc \ub0b4\ud3ec\ud558\ub294 \ubc94\uc704\ub294 \ub2e4\ub974\ub2e4. <\/div>\n\n

    IoAllocateDriverObjectExtension()\ub294 DriverExtension\uc744 \ud560\ub2f9\ud558\ub294 \n\uc5ed\ud560\uc744 \ud558\uba70

    IoGetDriverObjectExtension()\ub294 \uc774 \uba54\ubaa8\ub9ac\uc758 \uc8fc\uc18c\ub97c \uc5bb\ub294 \uc5ed\ud560\uc744 \ud55c\ub2e4. \n

    DriverExtension \uba54\ubaa8\ub9ac\ub97c \ud574\uc81c\ud574\uc8fc\ub294 \ud568\uc218\ub294 \uc5c6\ub2e4.

    \uc65c\ub0d0\ud558\uba74 Driver Unload \uac00 \uc2e4\ud589\ub418\ub294 \n\uc2dc\uc810\uc5d0\uc11c I\/O Manager\uac00 \uc54c\uc544\uc11c \ucc98\ub9ac\ud574 \uc8fc\uae30\ub54c\ubb38\uc774\ub2e4.
    \n<\/p>

    \n
    1. NTSTATUS   <\/span><\/span> \n<\/li>
    2. DriverDeviceControl(   <\/span> \n<\/li>
    3.     PDEVICE_OBJECT DeviceObject,   <\/span> \n<\/li>
    4.     PIRP Irp   <\/span> \n<\/li>
    5.     )   <\/span> \n<\/li>
    6. {   <\/span> \n<\/li>
    7.     PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension; \n  <\/span> \n<\/li>
    8.   <\/span> \n<\/li>
    9.     <\/span>return<\/font><\/strong><\/span> SmartcardDeviceControl( \n  <\/span> \n<\/li>
    10.         &(deviceExtension->SmartcardExtension),   <\/span> \n<\/li>
    11.         Irp   <\/span> \n<\/li>
    12.         );   <\/span> \n<\/li>
    13. }  <\/span><\/li><\/ol><\/div>\n
      <TEXTAREA class=\"cpp\" style=\"DISPLAY: none\" name=code \nrows=10 cols=60>NTSTATUS DriverDeviceControl( PDEVICE_OBJECT DeviceObject, \nPIRP Irp ) { PDEVICE_EXTENSION deviceExtension = \nDeviceObject->DeviceExtension; return SmartcardDeviceControl( \n&(deviceExtension->SmartcardExtension), Irp ); } <\/TEXTAREA>
      \uc704\ub294 \nDevice Extension\uc744 \uc0ac\uc6a9\ud558\ub294 \uc608\uc81c\uc774\ub2e4.

      \uadf8\ub9ac\uace0 DeviceExtension<\/font> \uba54\ubaa8\ub9ac\ub294 AddDevice \ub8e8\ud2f4\uc5d0\uc11c \ud560\ub2f9\ub418\uba70 \uac01 \uc7a5\uce58 \uace0\uc720\uc758 \uc815\ubcf4\ub97c \ub2f4\uc744\uc218 \n\uc788\ub2e4.

      \uc774\ub294 DriverExtension\uacfc\ub294 \ub2e4\ub974\ub2e4. DriverExtension\uc774 \uac01 \uc7a5\uce58\uc758 \ub4dc\ub77c\uc774\ubc84\ub9c8\ub2e4 \ubaa8\ub450 \uacf5\uc720\ud558\ub294 \ub370\uc774\ud130 \n\uc774\uc9c0\ub9cc

      DeviceExtension\uc740 \uacf5\uc720\ub418\uc9c0 \uc54a\ub294\ub2e4.

      IoCreateDevice()\uc5d0 \uc758\ud574 \nDeviceObject\ub97c \uc0dd\uc131\ud560\ub54c DeviceExtension \uba54\ubaa8\ub9ac\ub97c \ud560\ub2f9 \ud560\uc218 \uc788\uc73c\uba70

      IoDeleteDevice()\ub85c \nDeviceObject\ub97c \uc0ad\uc81c\ud560\ub54c DeviceExtension\uc744 \ud574\uc81c\ud560 \uc218 \uc788\ub2e4.

       \uc774\ub458\uc758 \ucc28\uc774\uc810\uc744 \uc694\uc57d<\/font>\ud558\uba74 AddDevice \ub8e8\ud2f4\uc548\uc5d0\uc11c DeviceObject\ub97c \uc0dd\uc131\ud560\ub54c \uace0\uc720 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\uae30 \n

      \uc704\ud574\uc11c DeviceExtension\uc744 \uc0ac\uc6a9\ud55c\ub2e4. \uc774 DeviceExtension\uc5d0 \uc800\uc7a5\ub41c \ub0b4\uc6a9\uc740 Device Object\ub9c8\ub2e4 \n\uace0\uc720\ud558\uba70

      \ub2e4\ub978 Device Object\uc640 \uacf5\uc720\ub418\uc9c0 \uc54a\ub294\ub2e4.

      \ud558\uc9c0\ub9cc RegistryPath\uc640 \uac19\uc740 \uc815\ubcf4\uc758 \uacbd\uc6b0 \ubaa8\ub4e0 \nDeviceObject\uac00 \uacf5\ud1b5\uc801\uc73c\ub85c \uc0ac\uc6a9\ud558\ub294 \uac83\uc774\ub2e4.

      \uc774\ub294 \uc11c\ub85c \uacf5\uc720\ub418\ub294 \uc815\ubcf4\uc774\uba70 \ub2e4\uc2dc \ub9d0\ud574 Driver \uc804\uc5ed\uc801\uc778 \uc815\ubcf4\uc774\ub2e4. \n

      DriverExtension\uc740 \uc774\uc640\uac19\uc774 Driver \uc804\uc5ed \uc801\uc778 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\ub294 \uba54\ubaa8\ub9ac\uc774\ub2e4. <\/div>\n
       <\/div>\ucd9c\ucc98 : http:\/\/ssmhz.tistory.com<\/a>
      \n","protected":false},"excerpt":{"rendered":"

      \uc77c\ub2e8 DriverExtension\uc5d0 \ub300\ud574\uc11c \uc54c\uc544\ubcf4\uba74, typedef struct _DRIVER_EXTENSION   {        PDRIVER_OBJECT DriverObject;        LONG * AddDevice;        ULONG Count;        UNICODE_STRING ServiceKeyName;        PIO_CLIENT_EXTENSION ClientDriverExtension;        PFS_FILTER_CALLBACKS FsFilterCallbacks;   } DRIVER_EXTENSION, *PDRIVER_EXTENSION;   <TEXTAREA class=”cpp” style=”DISPLAY: none” name=code rows=10 cols=60>typedef struct _DRIVER_EXTENSION { PDRIVER_OBJECT DriverObject; LONG * […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[24],"tags":[],"class_list":["post-193","post","type-post","status-publish","format-standard","hentry","category-development_winddk"],"_links":{"self":[{"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=193"}],"version-history":[{"count":0,"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/193\/revisions"}],"wp:attachment":[{"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}