Changeset 6422 in vbox for trunk/include

Timestamp:

Jan 21, 2008 6:11:53 PM (17 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

27388

Message:

Outlined how to handle the requests on solaris.

File:

• trunk/include/VBox/VBoxGuest.h (modified) (3 diffs)

trunk/include/VBox/VBoxGuest.h

@@ -952 +952 @@
 #endif
 
+/** Ring-3 request wrapper for big requests.
+ *
+ * This is necessary because the ioctl number scheme on many Unixy OSes (esp. Solaris)
+ * only allows a relatively small size to be encoded into the request. So, for big
+ * request this generic form is used instead. */
+typedef struct VBGLBIGREQ
+{
+    /** Magic value (VBGLBIGREQ_MAGIC). */
+    uint32_t    u32Magic;
+    /** The size of the data buffer. */
+    uint32_t    cbData;
+    /** The user address of the data buffer. */
+    RTR3PTR     pvDataR3;
+} VBGLBIGREQ;
+/** Pointer to a request wrapper for solaris guests. */
+typedef VBGLBIGREQ *PVBGLBIGREQ;
+/** Pointer to a const request wrapper for solaris guests. */
+typedef const VBGLBIGREQ *PCVBGLBIGREQ;
+
+/** The VBGLBIGREQ::u32Magic value (Ryuu Murakami). */
+#define VBGLBIGREQ_MAGIC                            0x19520219
+
+
 #if defined(RT_OS_WINDOWS)
 # define IOCTL_CODE(DeviceType, Function, Method, Access, DataSize_ignored) \
@@ -976 +999 @@
 #elif defined(RT_OS_SOLARIS)
 # include <sys/ioccom.h>
+#if 0
+# define VBOXGUEST_IOCTL_CODE(Function, Size)   _IOWRN('V', (Function) | VBOXGUEST_IOCTL_FLAG, sizeof(VBGLBIGREQ))
+# define VBOXGUEST_IOCTL_CODE_FAST(Function)    _IO(  'V', (Function) | VBOXGUEST_IOCTL_FLAG)
+#else
 # define VBOXGUEST_IOCTL_CODE(Function, Size)   _IOWRN('V', (Function) | VBOXGUEST_IOCTL_FLAG, (Size))
 # define VBOXGUEST_IOCTL_CODE_FAST(Function)    _IO(  'V', (Function) | VBOXGUEST_IOCTL_FLAG)
@@ -982 +1009 @@
 # define VBOXGUEST_IOCTL_SIZE(Code)             (((Code) >> 16) & IOCPARM_MASK)
 # define VBOXGUEST_IOCTL_NUMBER(Code)           ((Code) & IOCPARM_MASK)
+#endif
 
 #elif 0 /* BSD style - needs some adjusting _IORW takes a type and not a size. */