Changeset 52403 in vbox for trunk/include/iprt/ldr.h

Timestamp:

Aug 18, 2014 8:35:32 PM (10 years ago)

Author:

vboxsync

Message:

SUP,IPRT: Extended RTLdrQueryPropEx with a pvBits parameter, RTLDRPROP_IMPORT_COUNT and RTLDRPROP_IMPORT_MODULE. Hook LdrLoadDll to validate DLLs before they get to NtCreateSection and the loader code/data can be messed up (windows 7 / 32-bit crash). Allow the kernel to buffer the log file, no real need that each write hits the disk.

File:

• trunk/include/iprt/ldr.h (modified) (3 diffs)

trunk/include/iprt/ldr.h

@@ -1002 +1002 @@
     RTLDRPROP_SIGNATURE_CHECKS_ENFORCED,
 
+    /** Number of import or needed modules. */
+    RTLDRPROP_IMPORT_COUNT,
+    /** Import module by index (32-bit) stored in the buffer. */
+    RTLDRPROP_IMPORT_MODULE,
+
     /** End of valid properties.  */
     RTLDRPROP_END,
@@ -1024 +1029 @@
  * @param   hLdrMod         The module handle.
  * @param   enmLdrProp      The property to query.
- * @param   pvBuf           Pointer to the return buffer.
- * @param   cbBuf           The size of the return buffer.
+ * @param   pvBuf           Pointer to the input / output buffer.  In most cases
+ *                          it's only used for returning data.
+ * @param   cbBuf           The size of the buffer.
  */
 RTDECL(int) RTLdrQueryProp(RTLDRMOD hLdrMod, RTLDRPROP enmProp, void *pvBuf, size_t cbBuf);
@@ -1046 +1052 @@
  * @param   hLdrMod         The module handle.
  * @param   enmLdrProp      The property to query.
- * @param   pvBuf           Pointer to the return buffer.
- * @param   cbBuf           The size of the return buffer.
+ * @param   pvBits          Optional pointer to bits returned by
+ *                          RTLdrGetBits().  This can be utilized by some module
+ *                          interpreters to reduce memory consumption and file
+ *                          access.
+ * @param   pvBuf           Pointer to the input / output buffer.  In most cases
+ *                          it's only used for returning data.
+ * @param   cbBuf           The size of the buffer.
  * @param   pcbRet          Where to return the amount of data returned.  On
  *                          buffer size errors, this is set to the correct size.
  *                          Optional.
  */
-RTDECL(int) RTLdrQueryPropEx(RTLDRMOD hLdrMod, RTLDRPROP enmProp, void *pvBuf, size_t cbBuf, size_t *pcbBuf);
+RTDECL(int) RTLdrQueryPropEx(RTLDRMOD hLdrMod, RTLDRPROP enmProp, void *pvBits, void *pvBuf, size_t cbBuf, size_t *pcbBuf);