dlls/winaspi/winaspi16.c

   1 #include "config.h"
   2
   3 #include <stdlib.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <errno.h>
   7 #include <fcntl.h>
   8 #include <memory.h>
   9 #include <unistd.h>
  10 #include <string.h>
  11 #include <stdio.h>
  12
  13 #include "winbase.h"
  14 #include "wine/windef16.h"
  15 #include "winreg.h"
  16 #include "aspi.h"
  17 #include "winescsi.h"
  18 #include "wine/winaspi.h"
  19 #include "heap.h"
  20 #include "debugtools.h"
  21 #include "miscemu.h"
  22
  23 DEFAULT_DEBUG_CHANNEL(aspi);
  24
  25
  26 /* FIXME!
  27  * 1) Residual byte length reporting not handled
  28  * 2) Make this code re-entrant for multithreading
  29  * 3) Only linux supported so far
  30  */
  31
  32 /* ### start build ### */
  33 extern LONG CALLBACK ASPI_CallTo16_long_l(FARPROC16,SEGPTR);
  34 /* ### stop build ### */
  35
  36 #ifdef linux
  37
  38 static ASPI_DEVICE_INFO *ASPI_open_devices = NULL;
  39
  40 static FARPROC16 ASPIChainFunc = NULL;
  41 static WORD HA_Count = 1; /* host adapter count; FIXME: detect it */
  42
  43 static int
  44 ASPI_OpenDevice16(SRB_ExecSCSICmd16 *prb)
  45 {
  46     HKEY hkey;
  47     int fd;
  48     char        idstr[50];
  49     char        device_str[50];
  50     ASPI_DEVICE_INFO *curr;
  51
  52     /* search list of devices to see if we've opened it already.
  53      * There is not an explicit open/close in ASPI land, so hopefully
  54      * keeping a device open won't be a problem.
  55      */
  56
  57     for (curr = ASPI_open_devices; curr; curr = curr->next) {
  58         if (curr->hostId == prb->SRB_HaId &&
  59             curr->target == prb->SRB_Target &&
  60             curr->lun == prb->SRB_Lun) {
  61             return curr->fd;
  62         }
  63     }
  64
  65     /* device wasn't cached, go ahead and open it */
  66     sprintf( idstr, "Software\\Wine\\Wine\\Config\\scsi c%1dt%1dd%1d",
  67              prb->SRB_HaId, prb->SRB_Target, prb->SRB_Lun);
  68
  69     device_str[0] = 0;
  70     if (!RegOpenKeyExA( HKEY_LOCAL_MACHINE, idstr, 0, KEY_ALL_ACCESS, &hkey ))
  71     {
  72         DWORD type, count = sizeof(device_str);
  73         if (RegQueryValueExA( hkey, "Device", 0, &type, device_str, &count )) device_str[0] = 0;
  74         RegCloseKey( hkey );
  75     }
  76
  77     if (!device_str[0])
  78     {
  79         TRACE("Trying to open unlisted scsi device %s\n", idstr);
  80         return -1;
  81     }
  82
  83     TRACE("Opening device %s=%s\n", idstr, device_str);
  84
  85     fd = open(device_str, O_RDWR);
  86     if (fd == -1) {
  87         int save_error = errno;
  88         ERR("Error opening device %s, error '%s'\n", device_str, strerror(save_error));
  89         return -1;
  90     }
  91
  92     /* device is now open */
  93     curr = HeapAlloc( GetProcessHeap(), 0, sizeof(ASPI_DEVICE_INFO) );
  94     curr->fd = fd;
  95     curr->hostId = prb->SRB_HaId;
  96     curr->target = prb->SRB_Target;
  97     curr->lun = prb->SRB_Lun;
  98
  99     /* insert new record at beginning of open device list */
 100     curr->next = ASPI_open_devices;
 101     ASPI_open_devices = curr;
 102     return fd;
 103 }
 104
 105
 106 static void
 107 ASPI_DebugPrintCmd(SRB_ExecSCSICmd16 *prb, UINT16 mode)
 108 {
 109   BYTE  cmd;
 110   int   i;
 111   BYTE *cdb;
 112   BYTE *lpBuf = 0;
 113
 114   switch (mode)
 115   {
 116       case ASPI_DOS:
 117         /* translate real mode address */
 118         if (prb->SRB_BufPointer)
 119             lpBuf = PTR_REAL_TO_LIN( SELECTOROF(prb->SRB_BufPointer), OFFSETOF(prb->SRB_BufPointer));
 120         break;
 121       case ASPI_WIN16:
 122         lpBuf = MapSL(prb->SRB_BufPointer);
 123         break;
 124   }
 125
 126   switch (prb->CDBByte[0]) {
 127   case CMD_INQUIRY:
 128     TRACE("{\n");
 129     TRACE("\tEVPD: %d\n", prb->CDBByte[1] & 1);
 130     TRACE("\tLUN: %d\n", (prb->CDBByte[1] & 0xc) >> 1);
 131     TRACE("\tPAGE CODE: %d\n", prb->CDBByte[2]);
 132     TRACE("\tALLOCATION LENGTH: %d\n", prb->CDBByte[4]);
 133     TRACE("\tCONTROL: %d\n", prb->CDBByte[5]);
 134     TRACE("}\n");
 135     break;
 136   case CMD_SCAN_SCAN:
 137     TRACE("Transfer Length: %d\n", prb->CDBByte[4]);
 138     break;
 139   }
 140
 141   TRACE("Host Adapter: %d\n", prb->SRB_HaId);
 142   TRACE("Flags: %d\n", prb->SRB_Flags);
 143   if (TARGET_TO_HOST(prb)) {
 144     TRACE("\tData transfer: Target to host. Length checked.\n");
 145   }
 146   else if (HOST_TO_TARGET(prb)) {
 147     TRACE("\tData transfer: Host to target. Length checked.\n");
 148   }
 149   else if (NO_DATA_TRANSFERED(prb)) {
 150     TRACE("\tData transfer: none\n");
 151   }
 152   else {
 153     WARN("\tTransfer by scsi cmd. Length not checked\n");
 154   }
 155
 156   TRACE("\tResidual byte length reporting %s\n", prb->SRB_Flags & 0x4 ? "enabled" : "disabled");
 157   TRACE("\tLinking %s\n", prb->SRB_Flags & 0x2 ? "enabled" : "disabled");
 158   TRACE("\tPosting %s\n", prb->SRB_Flags & 0x1 ? "enabled" : "disabled");
 159   TRACE("Target: %d\n", prb->SRB_Target);
 160   TRACE("Lun: %d\n", prb->SRB_Lun);
 161   TRACE("BufLen: %ld\n", prb->SRB_BufLen);
 162   TRACE("SenseLen: %d\n", prb->SRB_SenseLen);
 163   TRACE("BufPtr: %lx (%p)\n", prb->SRB_BufPointer, lpBuf);
 164   TRACE("LinkPointer %lx\n", prb->SRB_Rsvd1);
 165   TRACE("CDB Length: %d\n", prb->SRB_CDBLen);
 166   TRACE("POST Proc: %lx\n", (DWORD) prb->SRB_PostProc);
 167   cdb = &prb->CDBByte[0];
 168   cmd = prb->CDBByte[0];
 169   if (TRACE_ON(aspi))
 170   {
 171       DPRINTF("CDB buffer[");
 172       for (i = 0; i < prb->SRB_CDBLen; i++) {
 173           if (i != 0) DPRINTF(",");
 174           DPRINTF("%02x", *cdb++);
 175       }
 176       DPRINTF("]\n");
 177   }
 178 }
 179
 180 static void
 181 ASPI_PrintSenseArea16(SRB_ExecSCSICmd16 *prb)
 182 {
 183   int   i;
 184   BYTE *cdb;
 185
 186   if (TRACE_ON(aspi))
 187   {
 188       cdb = &prb->CDBByte[0];
 189       DPRINTF("SenseArea[");
 190       for (i = 0; i < prb->SRB_SenseLen; i++) {
 191           if (i) DPRINTF(",");
 192           DPRINTF("%02x", *cdb++);
 193       }
 194       DPRINTF("]\n");
 195   }
 196 }
 197
 198 static void
 199 ASPI_DebugPrintResult(SRB_ExecSCSICmd16 *prb, UINT16 mode)
 200 {
 201   BYTE *lpBuf = 0;
 202
 203   switch (mode)
 204   {
 205       case ASPI_DOS:
 206         /* translate real mode address */
 207         if (prb->SRB_BufPointer)
 208             lpBuf = PTR_REAL_TO_LIN( SELECTOROF(prb->SRB_BufPointer), OFFSETOF(prb->SRB_BufPointer));
 209         break;
 210       case ASPI_WIN16:
 211         lpBuf = MapSL(prb->SRB_BufPointer);
 212         break;
 213   }
 214
 215   switch (prb->CDBByte[0]) {
 216   case CMD_INQUIRY:
 217     TRACE("Vendor: '%s'\n", lpBuf + INQUIRY_VENDOR);
 218     break;
 219   case CMD_TEST_UNIT_READY:
 220     ASPI_PrintSenseArea16(prb);
 221     break;
 222   }
 223 }
 224
 225 static WORD
 226 ASPI_ExecScsiCmd(DWORD ptrPRB, UINT16 mode)
 227 {
 228   SRB_ExecSCSICmd16 *lpPRB = 0;
 229   struct sg_header *sg_hd, *sg_reply_hdr;
 230   int   status;
 231   BYTE *lpBuf = 0;
 232   int   in_len, out_len;
 233   int   error_code = 0;
 234   int   fd;
 235
 236   switch (mode)
 237   {
 238       case ASPI_DOS:
 239         if (ptrPRB)
 240             lpPRB = PTR_REAL_TO_LIN( SELECTOROF(ptrPRB), OFFSETOF(ptrPRB));
 241         break;
 242       case ASPI_WIN16:
 243         lpPRB = MapSL(ptrPRB);
 244         break;
 245   }
 246
 247   ASPI_DebugPrintCmd(lpPRB, mode);
 248
 249   fd = ASPI_OpenDevice16(lpPRB);
 250   if (fd == -1) {
 251       WARN("Failed: could not open device. Device permissions !?\n");
 252       lpPRB->SRB_Status = SS_ERR;
 253       return SS_ERR;
 254   }
 255
 256   sg_hd = NULL;
 257   sg_reply_hdr = NULL;
 258
 259   lpPRB->SRB_Status = SS_PENDING;
 260
 261   switch (mode)
 262   {
 263       case ASPI_DOS:
 264         /* translate real mode address */
 265         if (ptrPRB)
 266             lpBuf = PTR_REAL_TO_LIN( SELECTOROF(lpPRB->SRB_BufPointer),
 267                                      OFFSETOF(lpPRB->SRB_BufPointer));
 268         break;
 269       case ASPI_WIN16:
 270         lpBuf = MapSL(lpPRB->SRB_BufPointer);
 271         break;
 272   }
 273
 274   if (!lpPRB->SRB_CDBLen) {
 275       WARN("Failed: lpPRB->SRB_CDBLen = 0.\n");
 276       lpPRB->SRB_Status = SS_ERR;
 277       return SS_ERR;
 278   }
 279
 280   /* build up sg_header + scsi cmd */
 281   if (HOST_TO_TARGET(lpPRB)) {
 282     /* send header, command, and then data */
 283     in_len = SCSI_OFF + lpPRB->SRB_CDBLen + lpPRB->SRB_BufLen;
 284     sg_hd = (struct sg_header *) malloc(in_len);
 285     memset(sg_hd, 0, SCSI_OFF);
 286     memcpy(sg_hd + 1, &lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
 287     if (lpPRB->SRB_BufLen) {
 288       memcpy(((BYTE *) sg_hd) + SCSI_OFF + lpPRB->SRB_CDBLen, lpBuf, lpPRB->SRB_BufLen);
 289     }
 290   }
 291   else {
 292     /* send header and command - no data */
 293     in_len = SCSI_OFF + lpPRB->SRB_CDBLen;
 294     sg_hd = (struct sg_header *) malloc(in_len);
 295     memset(sg_hd, 0, SCSI_OFF);
 296     memcpy(sg_hd + 1, &lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
 297   }
 298
 299   if (TARGET_TO_HOST(lpPRB)) {
 300     out_len = SCSI_OFF + lpPRB->SRB_BufLen;
 301     sg_reply_hdr = (struct sg_header *) malloc(out_len);
 302     memset(sg_reply_hdr, 0, SCSI_OFF);
 303     sg_hd->reply_len = out_len;
 304   }
 305   else {
 306     out_len = SCSI_OFF;
 307     sg_reply_hdr = (struct sg_header *) malloc(out_len);
 308     memset(sg_reply_hdr, 0, SCSI_OFF);
 309     sg_hd->reply_len = out_len;
 310   }
 311
 312   status = write(fd, sg_hd, in_len);
 313   if (status < 0 || status != in_len) {
 314       int save_error = errno;
 315
 316     WARN("Not enough bytes written to scsi device bytes=%d .. %d\n", in_len, status);
 317     if (status < 0) {
 318                 if (save_error == ENOMEM) {
 319             MESSAGE("ASPI: Linux generic scsi driver\n  You probably need to re-compile your kernel with a larger SG_BIG_BUFF value (sg.h)\n  Suggest 130560\n");
 320         }
 321                 WARN("error:= '%s'\n", strerror(save_error));
 322     }
 323     goto error_exit;
 324   }
 325
 326   status = read(fd, sg_reply_hdr, out_len);
 327   if (status < 0 || status != out_len) {
 328     WARN("not enough bytes read from scsi device%d\n", status);
 329     goto error_exit;
 330   }
 331
 332   if (sg_reply_hdr->result != 0) {
 333     error_code = sg_reply_hdr->result;
 334     WARN("reply header error (%d)\n", sg_reply_hdr->result);
 335     goto error_exit;
 336   }
 337
 338   if (TARGET_TO_HOST(lpPRB) && lpPRB->SRB_BufLen) {
 339     memcpy(lpBuf, sg_reply_hdr + 1, lpPRB->SRB_BufLen);
 340   }
 341
 342   /* copy in sense buffer to amount that is available in client */
 343   if (lpPRB->SRB_SenseLen) {
 344     int sense_len = lpPRB->SRB_SenseLen;
 345     if (lpPRB->SRB_SenseLen > 16)
 346       sense_len = 16;
 347     memcpy(SENSE_BUFFER(lpPRB), &sg_reply_hdr->sense_buffer[0], sense_len);
 348   }
 349
 350
 351   lpPRB->SRB_Status = SS_COMP;
 352   lpPRB->SRB_HaStat = HASTAT_OK;
 353   lpPRB->SRB_TargStat = STATUS_GOOD;
 354
 355   /* now do posting */
 356
 357   if (ASPI_POSTING(lpPRB) && lpPRB->SRB_PostProc) {
 358     TRACE("Post Routine (%lx) called\n", (DWORD) lpPRB->SRB_PostProc);
 359     switch (mode)
 360     {
 361       case ASPI_DOS:
 362       {
 363         SEGPTR spPRB = MapLS(lpPRB);
 364
 365         ASPI_CallTo16_long_l(lpPRB->SRB_PostProc, spPRB);
 366         UnMapLS(spPRB);
 367         break;
 368       }
 369       case ASPI_WIN16:
 370         ASPI_CallTo16_long_l(lpPRB->SRB_PostProc, ptrPRB);
 371         break;
 372     }
 373   }
 374
 375   free(sg_reply_hdr);
 376   free(sg_hd);
 377   ASPI_DebugPrintResult(lpPRB, mode);
 378   return SS_COMP;
 379
 380 error_exit:
 381   if (error_code == EBUSY) {
 382       lpPRB->SRB_Status = SS_ASPI_IS_BUSY;
 383       TRACE("Device busy\n");
 384   }
 385   else {
 386       WARN("Failed\n");
 387       lpPRB->SRB_Status = SS_ERR;
 388   }
 389
 390   /* I'm not sure exactly error codes work here
 391    * We probably should set lpPRB->SRB_TargStat, SRB_HaStat ?
 392    */
 393   WARN("error_exit\n");
 394   free(sg_reply_hdr);
 395   free(sg_hd);
 396   return lpPRB->SRB_Status;
 397 }
 398 #endif
 399
 400
 401 /***********************************************************************
 402  *             GetASPISupportInfo16   (WINASPI.1)
 403  */
 404
 405 WORD WINAPI GetASPISupportInfo16(void)
 406 {
 407 #ifdef linux
 408     TRACE("GETASPISupportInfo16\n");
 409     /* high byte SS_COMP - low byte number of host adapters */
 410     return ((SS_COMP << 8) | HA_Count);
 411 #else
 412     return ((SS_NO_ASPI << 8) | 0);
 413 #endif
 414 }
 415
 416
 417 DWORD ASPI_SendASPICommand(DWORD ptrSRB, UINT16 mode)
 418 {
 419 #ifdef linux
 420   LPSRB16 lpSRB = 0;
 421
 422   switch (mode)
 423   {
 424       case ASPI_DOS:
 425         if (ptrSRB)
 426             lpSRB = PTR_REAL_TO_LIN( SELECTOROF(ptrSRB), OFFSETOF(ptrSRB));
 427         break;
 428       case ASPI_WIN16:
 429         lpSRB = MapSL(ptrSRB);
 430         if (ASPIChainFunc)
 431         {
 432             /* This is not the post proc, it's the chain proc this time */
 433             DWORD ret = ASPI_CallTo16_long_l(ASPIChainFunc, ptrSRB);
 434             if (ret)
 435             {
 436                 lpSRB->inquiry.SRB_Status = SS_INVALID_SRB;
 437                 return ret;
 438             }
 439         }
 440         break;
 441   }
 442
 443   switch (lpSRB->common.SRB_Cmd) {
 444   case SC_HA_INQUIRY:
 445     lpSRB->inquiry.SRB_Status = SS_COMP;       /* completed successfully */
 446     if (lpSRB->inquiry.SRB_55AASignature == 0x55aa) {
 447         TRACE("Extended request detected (Adaptec's ASPIxDOS).\nWe don't support it at the moment.\n");
 448     }
 449     lpSRB->inquiry.SRB_ExtBufferSize = 0x2000; /* bogus value */
 450     lpSRB->inquiry.HA_Count = HA_Count;
 451     lpSRB->inquiry.HA_SCSI_ID = 7;             /* not always ID 7 */
 452     strcat(lpSRB->inquiry.HA_ManagerId, "Wine ASPI16"); /* max 15 chars */
 453     strcat(lpSRB->inquiry.HA_Identifier, "Wine host"); /* FIXME: return host
 454 adapter name */
 455     memset(lpSRB->inquiry.HA_Unique, 0, 16); /* default HA_Unique content */
 456     lpSRB->inquiry.HA_Unique[6] = 0x02; /* Maximum Transfer Length (128K, Byte> 4-7) */
 457     FIXME("ASPI: Partially implemented SC_HA_INQUIRY for adapter %d.\n", lpSRB->inquiry.SRB_HaId);
 458     return SS_COMP;
 459   case SC_GET_DEV_TYPE:
 460     FIXME("Not implemented SC_GET_DEV_TYPE\n");
 461     break;
 462   case SC_EXEC_SCSI_CMD:
 463     return ASPI_ExecScsiCmd((DWORD)ptrSRB, mode);
 464     break;
 465   case SC_RESET_DEV:
 466     FIXME("Not implemented SC_RESET_DEV\n");
 467     break;
 468   default:
 469     FIXME("Unknown command %d\n", lpSRB->common.SRB_Cmd);
 470   }
 471 #endif
 472   return SS_INVALID_SRB;
 473 }
 474
 475
 476 /***********************************************************************
 477  *             SendASPICommand16   (WINASPI.2)
 478  */
 479 WORD WINAPI SendASPICommand16(SEGPTR segptr_srb)
 480 {
 481 #ifdef linux
 482     return ASPI_SendASPICommand(segptr_srb, ASPI_WIN16);
 483 #else
 484     return 0;
 485 #endif
 486 }
 487
 488
 489 /***********************************************************************
 490  *             InsertInASPIChain16   (WINASPI.3)
 491  */
 492 WORD WINAPI InsertInASPIChain16(BOOL16 remove, FARPROC16 pASPIChainFunc)
 493 {
 494 #ifdef linux
 495     if (remove == TRUE) /* Remove */
 496     {
 497         if (ASPIChainFunc == pASPIChainFunc)
 498         {
 499             ASPIChainFunc = NULL;
 500             return SS_COMP;
 501         }
 502     }
 503     else
 504     if (remove == FALSE) /* Insert */
 505     {
 506         if (ASPIChainFunc == NULL)
 507         {
 508             ASPIChainFunc = pASPIChainFunc;
 509             return SS_COMP;
 510         }
 511     }
 512 #endif
 513     return SS_ERR;
 514 }
 515
 516
 517 /***********************************************************************
 518  *             GetASPIDLLVersion16   (WINASPI.4)
 519  */
 520
 521 DWORD WINAPI GetASPIDLLVersion16()
 522 {
 523 #ifdef linux
 524         return 2;
 525 #else
 526         return 0;
 527 #endif
 528 }
 529