RtlQueryRegistryValues(): +"\captive\filesystem\Parameters\WritingSupport"=1

 - for ext2fsd.sys V0.10A write-enable

diff --git a/src/libcaptive/cm/rtlfunc.c b/src/libcaptive/cm/rtlfunc.c
index 421e807..8c3a332 100644 (file)
--- a/src/libcaptive/cm/rtlfunc.c
+++ b/src/libcaptive/cm/rtlfunc.c
@@ -21,6 +21,7 @@
 
 #include "reactos/ddk/kefuncs.h"       /* self */
 #include <glib/gmessages.h>
+#include "captive/unicode.h"
 
 
 /**
@@ -33,14 +34,33 @@
  * @Environment: Environment variable to use for key expansion; optional; ignored by libcaptive.
  *
  * Retrieves specified key from the system registry database.
- * libcaptive currently always returns %STATUS_OBJECT_NAME_NOT_FOUND.
+ * libcaptive currently always returns %STATUS_OBJECT_NAME_NOT_FOUND
+ * except #ULONG value 1 for the key "\captive\filesystem\Parameters\WritingSupport"
+ * (for ext2fsd.sys V0.10A).
  *
- * Returns: %STATUS_OBJECT_NAME_NOT_FOUND
+ * Returns: %STATUS_OBJECT_NAME_NOT_FOUND or %STATUS_SUCCESS if some result returned.
  */
 NTSTATUS RtlQueryRegistryValues
                (IN ULONG RelativeTo,IN PWSTR Path,IN PRTL_QUERY_REGISTRY_TABLE QueryTable,IN PVOID Context,IN PVOID Environment) 
 {
+const WCHAR *Path__captive_filesystem_Parameters_ucs2=
+               captive_utf8_to_UnicodeString_alloca("\\captive\\filesystem\\Parameters")->Buffer;
+const WCHAR *QueryTable_WritingSupport_Name_ucs2=
+               captive_utf8_to_UnicodeString_alloca("WritingSupport")->Buffer;
+
+       g_return_val_if_fail(Path!=NULL,STATUS_INVALID_PARAMETER);
        g_return_val_if_fail(QueryTable!=NULL,STATUS_INVALID_PARAMETER);
+       
+       if (RelativeTo==RTL_REGISTRY_ABSOLUTE
+                       && captive_ucs2_compare(Path,Path__captive_filesystem_Parameters_ucs2)
+                       && QueryTable[0].Name!=NULL
+                                       && captive_ucs2_compare(QueryTable[0].Name,QueryTable_WritingSupport_Name_ucs2)
+                       && QueryTable[0].Flags==(RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_REQUIRED)
+                       && QueryTable[0].EntryContext!=NULL
+                       && QueryTable[1].Name==NULL) {
+               *(ULONG *)QueryTable[0].EntryContext=1; /* => 'EXT2_SUPPORT_WRITING' */
+               return STATUS_SUCCESS;
+               }
 
        return STATUS_OBJECT_NAME_NOT_FOUND;
 }