[PATCH] ntoskrnl.exe: Use the registered interface class in IoSetDeviceInterfaceState().

[Zebediah Figura]

Signed-off-by: Zebediah Figura <zfigura(a)codeweavers.com>
---
 dlls/ntoskrnl.exe/pnp.c | 77 +----------------------------------------
 1 file changed, 1 insertion(+), 76 deletions(-)

diff --git a/dlls/ntoskrnl.exe/pnp.c b/dlls/ntoskrnl.exe/pnp.c
index 4ec8aaaed27..30865a05dcb 100644
--- a/dlls/ntoskrnl.exe/pnp.c
+++ b/dlls/ntoskrnl.exe/pnp.c
@@ -71,77 +71,6 @@ static int interface_rb_compare( const void *key, const struct wine_rb_entry *en
 
 static struct wine_rb_tree device_interfaces = { interface_rb_compare };
 
-static inline BOOL is_valid_hex(WCHAR c)
-{
-    if (!(((c >= '0') && (c <= '9'))  ||
-          ((c >= 'a') && (c <= 'f'))  ||
-          ((c >= 'A') && (c <= 'F'))))
-        return FALSE;
-    return TRUE;
-}
-
-static const BYTE guid_conv_table[256] =
-{
-  0,   0,   0,   0,   0,   0,   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
-  0,   0,   0,   0,   0,   0,   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
-  0,   0,   0,   0,   0,   0,   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
-  0,   1,   2,   3,   4,   5,   6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */
-  0, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x40 */
-  0,   0,   0,   0,   0,   0,   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */
-  0, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf                             /* 0x60 */
-};
-
-static BOOL guid_from_string(const WCHAR *s, GUID *id)
-{
-    int	i;
-
-    if (!s || s[0] != '{')
-    {
-        memset( id, 0, sizeof (CLSID) );
-        return FALSE;
-    }
-
-    id->Data1 = 0;
-    for (i = 1; i < 9; i++)
-    {
-        if (!is_valid_hex(s[i])) return FALSE;
-        id->Data1 = (id->Data1 << 4) | guid_conv_table[s[i]];
-    }
-    if (s[9] != '-') return FALSE;
-
-    id->Data2 = 0;
-    for (i = 10; i < 14; i++)
-    {
-        if (!is_valid_hex(s[i])) return FALSE;
-        id->Data2 = (id->Data2 << 4) | guid_conv_table[s[i]];
-    }
-    if (s[14] != '-') return FALSE;
-
-    id->Data3 = 0;
-    for (i = 15; i < 19; i++)
-    {
-        if (!is_valid_hex(s[i])) return FALSE;
-        id->Data3 = (id->Data3 << 4) | guid_conv_table[s[i]];
-    }
-    if (s[19] != '-') return FALSE;
-
-    for (i = 20; i < 37; i += 2)
-    {
-        if (i == 24)
-        {
-            if (s[i] != '-') return FALSE;
-            i++;
-        }
-        if (!is_valid_hex(s[i]) || !is_valid_hex(s[i+1])) return FALSE;
-        id->Data4[(i-20)/2] = guid_conv_table[s[i]] << 4 | guid_conv_table[s[i+1]];
-    }
-
-    if (s[37] == '}')
-        return TRUE;
-
-    return FALSE;
-}
-
 static NTSTATUS WINAPI internal_complete( DEVICE_OBJECT *device, IRP *irp, void *context )
 {
     HANDLE event = context;
@@ -594,7 +523,6 @@ NTSTATUS WINAPI IoSetDeviceInterfaceState( UNICODE_STRING *name, BOOLEAN enable
     UNICODE_STRING string;
     DWORD data = enable;
     NTSTATUS ret;
-    GUID class;
     ULONG len;
 
     TRACE("device %s, enable %u.\n", debugstr_us(name), enable);
@@ -615,9 +543,6 @@ NTSTATUS WINAPI IoSetDeviceInterfaceState( UNICODE_STRING *name, BOOLEAN enable
         if (*p == '\\') refstr = p;
     if (!refstr) refstr = p;
 
-    if (!guid_from_string( refstr - 38, &class ))
-        return STATUS_INVALID_PARAMETER;
-
     len = lstrlenW(DeviceClassesW) + 38 + 1 + namelen + 2 + 1;
 
     if (!(path = heap_alloc( len * sizeof(WCHAR) )))
@@ -676,7 +601,7 @@ NTSTATUS WINAPI IoSetDeviceInterfaceState( UNICODE_STRING *name, BOOLEAN enable
     {
         broadcast->dbcc_size = len;
         broadcast->dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
-        broadcast->dbcc_classguid = class;
+        broadcast->dbcc_classguid = iface->interface_class;
         lstrcpynW( broadcast->dbcc_name, name->Buffer, namelen + 1 );
         BroadcastSystemMessageW( BSF_FORCEIFHUNG | BSF_QUERY, NULL, WM_DEVICECHANGE,
             enable ? DBT_DEVICEARRIVAL : DBT_DEVICEREMOVECOMPLETE, (LPARAM)broadcast );
-- 
2.20.1