dlls/ifsmgr.vxd/ifsmgr.c

   1 /*
   2  * IFSMGR VxD implementation
   3  *
   4  * Copyright 1998 Marcus Meissner
   5  * Copyright 1998 Ulrich Weigand
   6  * Copyright 1998 Patrik Stridvall
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 /* NOTES
  24  *   These ioctls are used by 'MSNET32.DLL'.
  25  *
  26  *   I have been unable to uncover any documentation about the ioctls so
  27  *   the implementation of the cases IFS_IOCTL_21 and IFS_IOCTL_2F are
  28  *   based on reasonable guesses on information found in the Windows 95 DDK.
  29  */
  30
  31 #include <stdarg.h>
  32
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(vxd);
  38
  39 /*
  40  * IFSMgr DeviceIO service
  41  */
  42
  43 #define IFS_IOCTL_21                100
  44 #define IFS_IOCTL_2F                101
  45 #define IFS_IOCTL_GET_RES           102
  46 #define IFS_IOCTL_GET_NETPRO_NAME_A 103
  47
  48 struct win32apireq {
  49         unsigned long   ar_proid;
  50         unsigned long   ar_eax;
  51         unsigned long   ar_ebx;
  52         unsigned long   ar_ecx;
  53         unsigned long   ar_edx;
  54         unsigned long   ar_esi;
  55         unsigned long   ar_edi;
  56         unsigned long   ar_ebp;
  57         unsigned short  ar_error;
  58         unsigned short  ar_pad;
  59 };
  60
  61 static void win32apieq_2_CONTEXT(const struct win32apireq *pIn, CONTEXT86 *pCxt)
  62 {
  63         memset(pCxt,0,sizeof(*pCxt));
  64
  65         pCxt->ContextFlags=CONTEXT86_INTEGER|CONTEXT86_CONTROL;
  66         pCxt->Eax = pIn->ar_eax;
  67         pCxt->Ebx = pIn->ar_ebx;
  68         pCxt->Ecx = pIn->ar_ecx;
  69         pCxt->Edx = pIn->ar_edx;
  70         pCxt->Esi = pIn->ar_esi;
  71         pCxt->Edi = pIn->ar_edi;
  72
  73         /* FIXME: Only partial CONTEXT86_CONTROL */
  74         pCxt->Ebp = pIn->ar_ebp;
  75
  76         /* FIXME: pIn->ar_proid ignored */
  77         /* FIXME: pIn->ar_error ignored */
  78         /* FIXME: pIn->ar_pad ignored */
  79 }
  80
  81 static void CONTEXT_2_win32apieq(const CONTEXT86 *pCxt, struct win32apireq *pOut)
  82 {
  83         memset(pOut,0,sizeof(struct win32apireq));
  84
  85         pOut->ar_eax = pCxt->Eax;
  86         pOut->ar_ebx = pCxt->Ebx;
  87         pOut->ar_ecx = pCxt->Ecx;
  88         pOut->ar_edx = pCxt->Edx;
  89         pOut->ar_esi = pCxt->Esi;
  90         pOut->ar_edi = pCxt->Edi;
  91
  92         /* FIXME: Only partial CONTEXT86_CONTROL */
  93         pOut->ar_ebp = pCxt->Ebp;
  94
  95         /* FIXME: pOut->ar_proid ignored */
  96         /* FIXME: pOut->ar_error ignored */
  97         /* FIXME: pOut->ar_pad ignored */
  98 }
  99
 100 typedef void (WINAPI *CallBuiltinHandler)( CONTEXT *context, BYTE intnum );
 101
 102 static CallBuiltinHandler load_builtin_handler(void)
 103 {
 104     static CallBuiltinHandler handler;
 105     static BOOL init_done;
 106
 107     if (!init_done)
 108     {
 109         HMODULE mod = LoadLibraryA( "winedos.dll" );
 110         if (mod) handler = (void *)GetProcAddress( mod, "CallBuiltinHandler" );
 111         if (!handler) FIXME( "DOS calls not supported\n" );
 112         init_done = TRUE;
 113     }
 114     return handler;
 115 }
 116
 117 /***********************************************************************
 118  *           DeviceIoControl   (IFSMGR.VXD.@)
 119  */
 120 BOOL WINAPI IFSMGR_DeviceIoControl(DWORD dwIoControlCode, LPVOID lpvInBuffer, DWORD cbInBuffer,
 121                                   LPVOID lpvOutBuffer, DWORD cbOutBuffer,
 122                                   LPDWORD lpcbBytesReturned,
 123                                   LPOVERLAPPED lpOverlapped)
 124 {
 125     TRACE("(%d,%p,%d,%p,%d,%p,%p): stub\n",
 126           dwIoControlCode, lpvInBuffer,cbInBuffer, lpvOutBuffer,cbOutBuffer,
 127           lpcbBytesReturned, lpOverlapped);
 128
 129     switch (dwIoControlCode)
 130     {
 131     case IFS_IOCTL_21:
 132     case IFS_IOCTL_2F:
 133         {
 134             CONTEXT86 cxt;
 135             struct win32apireq *pIn=lpvInBuffer;
 136             struct win32apireq *pOut=lpvOutBuffer;
 137             CallBuiltinHandler handler;
 138
 139             if (!(handler = load_builtin_handler())) return FALSE;
 140
 141             TRACE( "Control '%s': "
 142                    "proid=0x%08lx, eax=0x%08lx, ebx=0x%08lx, ecx=0x%08lx, "
 143                    "edx=0x%08lx, esi=0x%08lx, edi=0x%08lx, ebp=0x%08lx, "
 144                    "error=0x%04x, pad=0x%04x\n",
 145                    (dwIoControlCode==IFS_IOCTL_21)?"IFS_IOCTL_21":"IFS_IOCTL_2F",
 146                    pIn->ar_proid, pIn->ar_eax, pIn->ar_ebx, pIn->ar_ecx,
 147                    pIn->ar_edx, pIn->ar_esi, pIn->ar_edi, pIn->ar_ebp,
 148                    pIn->ar_error, pIn->ar_pad );
 149
 150             win32apieq_2_CONTEXT(pIn,&cxt);
 151
 152             if(dwIoControlCode==IFS_IOCTL_21)
 153                 handler( &cxt, 0x21 );
 154             else
 155                 handler( &cxt, 0x2f );
 156
 157             CONTEXT_2_win32apieq(&cxt,pOut);
 158             return TRUE;
 159         }
 160     case IFS_IOCTL_GET_RES:
 161         FIXME( "Control 'IFS_IOCTL_GET_RES' not implemented\n");
 162         return FALSE;
 163     case IFS_IOCTL_GET_NETPRO_NAME_A:
 164         FIXME( "Control 'IFS_IOCTL_GET_NETPRO_NAME_A' not implemented\n");
 165         return FALSE;
 166     default:
 167         FIXME( "Control %d not implemented\n", dwIoControlCode);
 168         return FALSE;
 169     }
 170 }