dlls/wnaspi32/winaspi32.c

   1 #include <stdlib.h>
   2 #include <sys/types.h>
   3 #include <sys/stat.h>
   4 #include <errno.h>
   5 #include <fcntl.h>
   6 #include <ldt.h>
   7 #include <memory.h>
   8 #include <unistd.h>
   9 #include <callback.h>
  10 #include "windows.h"
  11 #include "aspi.h"
  12 #include "wnaspi32.h"
  13 #include "options.h"
  14 #include "heap.h"
  15 #include "debug.h"
  16 #include "selectors.h"
  17 #include "module.h"
  18 #include "miscemu.h"
  19
  20
  21 /* FIXME!
  22  * 1) Residual byte length reporting not handled
  23  * 2) Make this code re-entrant for multithreading
  24  * 3) Only linux supported so far
  25  */
  26
  27 #ifdef linux
  28 static int
  29 ASPI_OpenDevice32(SRB_ExecSCSICmd32 *prb)
  30 {
  31     int fd;
  32     char        idstr[20];
  33     char        device_str[50];
  34     ASPI_DEVICE_INFO *curr;
  35
  36     /* search list of devices to see if we've opened it already.
  37      * There is not an explicit open/close in ASPI land, so hopefully
  38      * keeping a device open won't be a problem.
  39      */
  40
  41     for (curr = ASPI_open_devices; curr; curr = curr->next) {
  42         if (curr->hostId == prb->SRB_HaId &&
  43             curr->target == prb->SRB_Target &&
  44             curr->lun == prb->SRB_Lun) {
  45             return curr->fd;
  46         }
  47     }
  48
  49     /* device wasn't cached, go ahead and open it */
  50     sprintf(idstr, "scsi c%1dt%1dd%1d", prb->SRB_HaId, prb->SRB_Target, prb->SRB_Lun);
  51
  52     if (!PROFILE_GetWineIniString(idstr, "Device", "", device_str, sizeof(device_str))) {
  53         TRACE(aspi, "Trying to open unlisted scsi device %s\n", idstr);
  54         return -1;
  55     }
  56
  57     TRACE(aspi, "Opening device %s=%s\n", idstr, device_str);
  58
  59     fd = open(device_str, O_RDWR);
  60     if (fd == -1) {
  61         int save_error = errno;
  62         ERR(aspi, "Error opening device %s, errno=%d\n", device_str, save_error);
  63         return -1;
  64     }
  65
  66     /* device is now open */
  67     curr = HeapAlloc( SystemHeap, 0, sizeof(ASPI_DEVICE_INFO) );
  68     curr->fd = fd;
  69     curr->hostId = prb->SRB_HaId;
  70     curr->target = prb->SRB_Target;
  71     curr->lun = prb->SRB_Lun;
  72
  73     /* insert new record at beginning of open device list */
  74     curr->next = ASPI_open_devices;
  75     ASPI_open_devices = curr;
  76     return fd;
  77 }
  78
  79
  80 static void
  81 ASPI_DebugPrintCmd32(SRB_ExecSCSICmd32 *prb)
  82 {
  83   BYTE  cmd;
  84   int   i;
  85   BYTE *cdb;
  86   dbg_decl_str(aspi, 512);
  87
  88   switch (prb->CDBByte[0]) {
  89   case CMD_INQUIRY:
  90     TRACE(aspi, "{\n");
  91     TRACE(aspi, "\tEVPD: %d\n", prb->CDBByte[1] & 1);
  92     TRACE(aspi, "\tLUN: %d\n", (prb->CDBByte[1] & 0xc) >> 1);
  93     TRACE(aspi, "\tPAGE CODE: %d\n", prb->CDBByte[2]);
  94     TRACE(aspi, "\tALLOCATION LENGTH: %d\n", prb->CDBByte[4]);
  95     TRACE(aspi, "\tCONTROL: %d\n", prb->CDBByte[5]);
  96     TRACE(aspi, "}\n");
  97     break;
  98   case CMD_SCAN_SCAN:
  99     TRACE(aspi, "Transfer Length: %d\n", prb->CDBByte[4]);
 100     break;
 101   }
 102
 103   TRACE(aspi, "Host Adapter: %d\n", prb->SRB_HaId);
 104   TRACE(aspi, "Flags: %d\n", prb->SRB_Flags);
 105   if (TARGET_TO_HOST(prb)) {
 106     TRACE(aspi, "\tData transfer: Target to host. Length checked.\n");
 107   }
 108   else if (HOST_TO_TARGET(prb)) {
 109     TRACE(aspi, "\tData transfer: Host to target. Length checked.\n");
 110   }
 111   else if (NO_DATA_TRANSFERED(prb)) {
 112     TRACE(aspi, "\tData transfer: none\n");
 113   }
 114   else {
 115     WARN(aspi, "\tTransfer by scsi cmd. Length not checked.\n");
 116   }
 117
 118   TRACE(aspi, "\tResidual byte length reporting %s\n", prb->SRB_Flags & 0x4 ? "enabled" : "disabled");
 119   TRACE(aspi, "\tLinking %s\n", prb->SRB_Flags & 0x2 ? "enabled" : "disabled");
 120   TRACE(aspi, "\tPosting %s\n", prb->SRB_Flags & 0x1 ? "enabled" : "disabled");
 121   TRACE(aspi, "Target: %d\n", prb->SRB_Target);
 122   TRACE(aspi, "Lun: %d\n", prb->SRB_Lun);
 123   TRACE(aspi, "BufLen: %ld\n", prb->SRB_BufLen);
 124   TRACE(aspi, "SenseLen: %d\n", prb->SRB_SenseLen);
 125   TRACE(aspi, "BufPtr: %p\n", prb->SRB_BufPointer);
 126   TRACE(aspi, "CDB Length: %d\n", prb->SRB_CDBLen);
 127   TRACE(aspi, "POST Proc: %lx\n", (DWORD) prb->SRB_PostProc);
 128   cdb = &prb->CDBByte[0];
 129   cmd = prb->CDBByte[0];
 130   for (i = 0; i < prb->SRB_CDBLen; i++) {
 131     if (i != 0) dsprintf(aspi, ",");
 132     dsprintf(aspi, "%02x", *cdb++);
 133   }
 134   TRACE(aspi, "CDB buffer[%s]\n", dbg_str(aspi));
 135 }
 136
 137 static void
 138 ASPI_PrintSenseArea32(SRB_ExecSCSICmd32 *prb)
 139 {
 140   int   i;
 141   BYTE *cdb;
 142   dbg_decl_str(aspi, 512);
 143
 144   cdb = &prb->CDBByte[0];
 145   for (i = 0; i < prb->SRB_SenseLen; i++) {
 146     if (i) dsprintf(aspi, ",");
 147     dsprintf(aspi, "%02x", *cdb++);
 148   }
 149   TRACE(aspi, "SenseArea[%s]\n", dbg_str(aspi));
 150 }
 151
 152 static void
 153 ASPI_DebugPrintResult32(SRB_ExecSCSICmd32 *prb)
 154 {
 155
 156   switch (prb->CDBByte[0]) {
 157   case CMD_INQUIRY:
 158     TRACE(aspi, "Vendor: '%s'\n", prb->SRB_BufPointer + INQUIRY_VENDOR);
 159     break;
 160   case CMD_TEST_UNIT_READY:
 161     ASPI_PrintSenseArea32(prb);
 162     break;
 163   }
 164 }
 165
 166 static WORD
 167 ASPI_ExecScsiCmd32(SRB_ExecSCSICmd32 *lpPRB)
 168 {
 169   struct sg_header *sg_hd, *sg_reply_hdr;
 170   int   status;
 171   int   in_len, out_len;
 172   int   error_code = 0;
 173   int   fd;
 174
 175   ASPI_DebugPrintCmd32(lpPRB);
 176
 177   fd = ASPI_OpenDevice32(lpPRB);
 178   if (fd == -1) {
 179       ERR(aspi, "Failed: could not open device. Device permissions !?\n");
 180       lpPRB->SRB_Status = SS_ERR;
 181       return SS_ERR;
 182   }
 183
 184   sg_hd = NULL;
 185   sg_reply_hdr = NULL;
 186
 187   lpPRB->SRB_Status = SS_PENDING;
 188
 189   if (!lpPRB->SRB_CDBLen) {
 190       WARN(aspi, "Failed: lpPRB->SRB_CDBLen = 0.\n");
 191       lpPRB->SRB_Status = SS_ERR;
 192       return SS_ERR;
 193   }
 194
 195   /* build up sg_header + scsi cmd */
 196   if (HOST_TO_TARGET(lpPRB)) {
 197     /* send header, command, and then data */
 198     in_len = SCSI_OFF + lpPRB->SRB_CDBLen + lpPRB->SRB_BufLen;
 199     sg_hd = (struct sg_header *) malloc(in_len);
 200     memset(sg_hd, 0, SCSI_OFF);
 201     memcpy(sg_hd + 1, &lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
 202     if (lpPRB->SRB_BufLen) {
 203       memcpy(((BYTE *) sg_hd) + SCSI_OFF + lpPRB->SRB_CDBLen, lpPRB->SRB_BufPointer, lpPRB->SRB_BufLen);
 204     }
 205   }
 206   else {
 207     /* send header and command - no data */
 208     in_len = SCSI_OFF + lpPRB->SRB_CDBLen;
 209     sg_hd = (struct sg_header *) malloc(in_len);
 210     memset(sg_hd, 0, SCSI_OFF);
 211     memcpy(sg_hd + 1, &lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
 212   }
 213
 214   if (TARGET_TO_HOST(lpPRB)) {
 215     out_len = SCSI_OFF + lpPRB->SRB_BufLen;
 216     sg_reply_hdr = (struct sg_header *) malloc(out_len);
 217     memset(sg_reply_hdr, 0, SCSI_OFF);
 218     sg_hd->reply_len = out_len;
 219   }
 220   else {
 221     out_len = SCSI_OFF;
 222     sg_reply_hdr = (struct sg_header *) malloc(out_len);
 223     memset(sg_reply_hdr, 0, SCSI_OFF);
 224     sg_hd->reply_len = out_len;
 225   }
 226
 227   status = write(fd, sg_hd, in_len);
 228   if (status < 0 || status != in_len) {
 229       int myerror = errno;
 230
 231     WARN(aspi, "Not enough bytes written to scsi device bytes=%d .. %d\n", in_len, status);
 232     if (status < 0) {
 233         if (myerror == ENOMEM) {
 234             MSG("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");
 235         }
 236         WARN(aspi, "errno: = %d\n", myerror);
 237     }
 238     goto error_exit;
 239   }
 240
 241   status = read(fd, sg_reply_hdr, out_len);
 242   if (status < 0 || status != out_len) {
 243     WARN(aspi, "not enough bytes read from scsi device%d\n", status);
 244     goto error_exit;
 245   }
 246
 247   if (sg_reply_hdr->result != 0) {
 248     error_code = sg_reply_hdr->result;
 249     WARN(aspi, "reply header error (%d)\n", sg_reply_hdr->result);
 250     goto error_exit;
 251   }
 252
 253   if (TARGET_TO_HOST(lpPRB) && lpPRB->SRB_BufLen) {
 254     memcpy(lpPRB->SRB_BufPointer, sg_reply_hdr + 1, lpPRB->SRB_BufLen);
 255   }
 256
 257   /* copy in sense buffer to amount that is available in client */
 258   if (lpPRB->SRB_SenseLen) {
 259     int sense_len = lpPRB->SRB_SenseLen;
 260     if (lpPRB->SRB_SenseLen > 16)
 261       sense_len = 16;
 262     memcpy(SENSE_BUFFER(lpPRB), &sg_reply_hdr->sense_buffer[0], sense_len);
 263   }
 264
 265
 266   lpPRB->SRB_Status = SS_COMP;
 267   lpPRB->SRB_HaStat = HASTAT_OK;
 268   lpPRB->SRB_TargStat = STATUS_GOOD;
 269
 270   /* now do posting */
 271
 272   if (lpPRB->SRB_PostProc) {
 273     if (ASPI_POSTING(lpPRB)) {
 274       TRACE(aspi, "Post Routine (%lx) called\n", (DWORD) lpPRB->SRB_PostProc);
 275       (*lpPRB->SRB_PostProc)(lpPRB);
 276     }
 277     else
 278     if (lpPRB->SRB_Flags & SRB_EVENT_NOTIFY) {
 279       TRACE(aspi, "Setting event %04x\n", (HANDLE32)lpPRB->SRB_PostProc);
 280       SetEvent((HANDLE32)lpPRB->SRB_PostProc); /* FIXME: correct ? */
 281     }
 282   }
 283   free(sg_reply_hdr);
 284   free(sg_hd);
 285   ASPI_DebugPrintResult32(lpPRB);
 286   return SS_COMP;
 287
 288 error_exit:
 289   if (error_code == EBUSY) {
 290       lpPRB->SRB_Status = SS_ASPI_IS_BUSY;
 291       TRACE(aspi, "Device busy\n");
 292   }
 293   else {
 294       WARN(aspi, "Failed\n");
 295       lpPRB->SRB_Status = SS_ERR;
 296   }
 297
 298   /* I'm not sure exactly error codes work here
 299    * We probably should set lpPRB->SRB_TargStat, SRB_HaStat ?
 300    */
 301   WARN(aspi, "error_exit\n");
 302   free(sg_reply_hdr);
 303   free(sg_hd);
 304   return lpPRB->SRB_Status;
 305 }
 306 #endif
 307
 308
 309 /*******************************************************************
 310  *     GetASPI32SupportInfo32           [WNASPI32.0]
 311  *
 312  * Checks if the ASPI subsystem is initialized correctly.
 313  *
 314  * RETURNS
 315  *    HIWORD: 0.
 316  *    HIBYTE of LOWORD: status (SS_COMP or SS_FAILED_INIT)
 317  *    LOBYTE of LOWORD: # of host adapters.
 318  */
 319 DWORD WINAPI GetASPI32SupportInfo32()
 320 {
 321     return ((SS_COMP << 8) | 1); /* FIXME: get # of host adapters installed */
 322 }
 323
 324
 325 /***********************************************************************
 326  *             SendASPI32Command32 (WNASPI32.1)
 327  */
 328 DWORD WINAPI SendASPI32Command32(LPSRB32 lpSRB)
 329 {
 330 #ifdef linux
 331   switch (lpSRB->common.SRB_Cmd) {
 332   case SC_HA_INQUIRY:
 333     lpSRB->inquiry.SRB_Status = SS_COMP;       /* completed successfully */
 334     lpSRB->inquiry.HA_Count = 1;               /* not always */
 335     lpSRB->inquiry.HA_SCSI_ID = 7;             /* not always ID 7 */
 336     strcat(lpSRB->inquiry.HA_ManagerId, "ASPI for WIN32"); /* max 15 chars, don't change */
 337     strcat(lpSRB->inquiry.HA_Identifier, "Wine host"); /* FIXME: return host adapter name */
 338     memset(lpSRB->inquiry.HA_Unique, 0, 16); /* default HA_Unique content */
 339     lpSRB->inquiry.HA_Unique[6] = 0x02; /* Maximum Transfer Length (128K, Byte> 4-7) */
 340     FIXME(aspi, "ASPI: Partially implemented SC_HA_INQUIRY for adapter %d.\n", lpSRB->inquiry.SRB_HaId);
 341     return SS_COMP;
 342   case SC_GET_DEV_TYPE:
 343     FIXME(aspi, "Not implemented SC_GET_DEV_TYPE\n");
 344     break;
 345   case SC_EXEC_SCSI_CMD:
 346     return ASPI_ExecScsiCmd32(&lpSRB->cmd);
 347     break;
 348   case SC_RESET_DEV:
 349     FIXME(aspi, "Not implemented SC_RESET_DEV\n");
 350     break;
 351   default:
 352     WARN(aspi, "Unknown command %d\n", lpSRB->common.SRB_Cmd);
 353   }
 354   return SS_INVALID_SRB;
 355 #else
 356   return SS_INVALID_SRB;
 357 #endif
 358 }
 359
 360
 361 /***********************************************************************
 362  *             GetASPI32DLLVersion32   (WNASPI32.3)
 363  */
 364
 365 DWORD WINAPI GetASPI32DLLVersion32()
 366 {
 367 #ifdef linux
 368         return (DWORD)1;
 369 #else
 370         return (DWORD)0;
 371 #endif
 372 }
 373