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wine/dlls/winaspi.dll16/winaspi.c

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/*
* Copyright 1997 Bruce Milner
* Copyright 1998 Andreas Mohr
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include "windef.h"
#include "winbase.h"
#include "wine/windef16.h"
#include "wine/winbase16.h"
#include "winreg.h"
#include "wownt32.h"
#include "aspi.h"
#include "wine/winaspi.h"
#include "wine/debug.h"
/* FIXME!
* 1) Residual byte length reporting not handled
* 2) Make this code re-entrant for multithreading
* 3) Only linux supported so far
*/
#ifdef linux
/* Copy of info from 2.2.x kernel */
#define SG_MAX_SENSE 16 /* too little, unlikely to change in 2.2.x */
struct sg_header
{
int pack_len; /* [o] reply_len (ie useless), ignored as input */
int reply_len; /* [i] max length of expected reply (inc. sg_header) */
int pack_id; /* [io] id number of packet (use ints >= 0) */
int result; /* [o] 0==ok, else (+ve) Unix errno (best ignored) */
unsigned int twelve_byte:1;
/* [i] Force 12 byte command length for group 6 & 7 commands */
unsigned int target_status:5; /* [o] scsi status from target */
unsigned int host_status:8; /* [o] host status (see "DID" codes) */
unsigned int driver_status:8; /* [o] driver status+suggestion */
unsigned int other_flags:10; /* unused */
unsigned char sense_buffer[SG_MAX_SENSE]; /* [o] Output in 3 cases:
when target_status is CHECK_CONDITION or
when target_status is COMMAND_TERMINATED or
when (driver_status & DRIVER_SENSE) is true. */
}; /* This structure is 36 bytes long on i386 */
#define SCSI_OFF sizeof(struct sg_header)
#define PTR_TO_LIN(ptr,mode) \
((mode) == ASPI_DOS ? ((void*)(((unsigned int)SELECTOROF(ptr) << 4) + OFFSETOF(ptr))) : MapSL(ptr))
WINE_DEFAULT_DEBUG_CHANNEL(aspi);
/* Just a container for seeing what devices are open */
struct ASPI_DEVICE_INFO {
struct ASPI_DEVICE_INFO * next;
int fd;
int hostId;
int target;
int lun;
};
typedef struct ASPI_DEVICE_INFO ASPI_DEVICE_INFO;
static ASPI_DEVICE_INFO *ASPI_open_devices = NULL;
static FARPROC16 ASPIChainFunc = NULL;
static WORD HA_Count = 1; /* host adapter count; FIXME: detect it */
static int
ASPI_OpenDevice16(SRB_ExecSCSICmd16 *prb)
{
HKEY hkey;
int fd;
char idstr[50];
char device_str[50];
ASPI_DEVICE_INFO *curr;
/* search list of devices to see if we've opened it already.
* There is not an explicit open/close in ASPI land, so hopefully
* keeping a device open won't be a problem.
*/
for (curr = ASPI_open_devices; curr; curr = curr->next) {
if (curr->hostId == prb->SRB_HaId &&
curr->target == prb->SRB_Target &&
curr->lun == prb->SRB_Lun) {
return curr->fd;
}
}
/* device wasn't cached, go ahead and open it */
sprintf( idstr, "Software\\Wine\\Wine\\Config\\scsi c%1dt%1dd%1d",
prb->SRB_HaId, prb->SRB_Target, prb->SRB_Lun);
device_str[0] = 0;
if (!RegOpenKeyExA( HKEY_LOCAL_MACHINE, idstr, 0, KEY_ALL_ACCESS, &hkey ))
{
DWORD type, count = sizeof(device_str);
if (RegQueryValueExA( hkey, "Device", 0, &type, (LPBYTE)device_str, &count )) device_str[0] = 0;
RegCloseKey( hkey );
}
if (!device_str[0])
{
TRACE("Trying to open unlisted scsi device %s\n", idstr);
return -1;
}
TRACE("Opening device %s=%s\n", idstr, device_str);
fd = open(device_str, O_RDWR);
if (fd == -1) {
int save_error = errno;
ERR("Error opening device %s, error '%s'\n", device_str, strerror(save_error));
return -1;
}
/* device is now open */
curr = HeapAlloc( GetProcessHeap(), 0, sizeof(ASPI_DEVICE_INFO) );
curr->fd = fd;
curr->hostId = prb->SRB_HaId;
curr->target = prb->SRB_Target;
curr->lun = prb->SRB_Lun;
/* insert new record at beginning of open device list */
curr->next = ASPI_open_devices;
ASPI_open_devices = curr;
return fd;
}
static void
ASPI_DebugPrintCmd(SRB_ExecSCSICmd16 *prb, UINT16 mode)
{
int i;
BYTE *cdb;
BYTE *lpBuf = PTR_TO_LIN( prb->SRB_BufPointer, mode );
switch (prb->CDBByte[0]) {
case CMD_INQUIRY:
TRACE("{\n");
TRACE("\tEVPD: %d\n", prb->CDBByte[1] & 1);
TRACE("\tLUN: %d\n", (prb->CDBByte[1] & 0xc) >> 1);
TRACE("\tPAGE CODE: %d\n", prb->CDBByte[2]);
TRACE("\tALLOCATION LENGTH: %d\n", prb->CDBByte[4]);
TRACE("\tCONTROL: %d\n", prb->CDBByte[5]);
TRACE("}\n");
break;
case CMD_SCAN_SCAN:
TRACE("Transfer Length: %d\n", prb->CDBByte[4]);
break;
}
TRACE("Host Adapter: %d\n", prb->SRB_HaId);
TRACE("Flags: %d\n", prb->SRB_Flags);
if (TARGET_TO_HOST(prb)) {
TRACE("\tData transfer: Target to host. Length checked.\n");
}
else if (HOST_TO_TARGET(prb)) {
TRACE("\tData transfer: Host to target. Length checked.\n");
}
else if (NO_DATA_TRANSFERRED(prb)) {
TRACE("\tData transfer: none\n");
}
else {
WARN("\tTransfer by scsi cmd. Length not checked\n");
}
TRACE("\tResidual byte length reporting %s\n", prb->SRB_Flags & 0x4 ? "enabled" : "disabled");
TRACE("\tLinking %s\n", prb->SRB_Flags & 0x2 ? "enabled" : "disabled");
TRACE("\tPosting %s\n", prb->SRB_Flags & 0x1 ? "enabled" : "disabled");
TRACE("Target: %d\n", prb->SRB_Target);
TRACE("Lun: %d\n", prb->SRB_Lun);
TRACE("BufLen: %d\n", prb->SRB_BufLen);
TRACE("SenseLen: %d\n", prb->SRB_SenseLen);
TRACE("BufPtr: %x (%p)\n", prb->SRB_BufPointer, lpBuf);
TRACE("LinkPointer %x\n", prb->SRB_Rsvd1);
TRACE("CDB Length: %d\n", prb->SRB_CDBLen);
TRACE("POST Proc: %x\n", (DWORD) prb->SRB_PostProc);
cdb = &prb->CDBByte[0];
if (TRACE_ON(aspi))
{
TRACE("CDB buffer[");
for (i = 0; i < prb->SRB_CDBLen; i++) {
if (i != 0) TRACE(",");
TRACE("%02x", *cdb++);
}
TRACE("]\n");
}
}
static void
ASPI_PrintSenseArea16(SRB_ExecSCSICmd16 *prb)
{
int i;
BYTE *cdb;
if (TRACE_ON(aspi))
{
cdb = &prb->CDBByte[0];
TRACE("SenseArea[");
for (i = 0; i < prb->SRB_SenseLen; i++) {
if (i) TRACE(",");
TRACE("%02x", *cdb++);
}
TRACE("]\n");
}
}
static void
ASPI_DebugPrintResult(SRB_ExecSCSICmd16 *prb, UINT16 mode)
{
BYTE *lpBuf = PTR_TO_LIN( prb->SRB_BufPointer, mode );
switch (prb->CDBByte[0]) {
case CMD_INQUIRY:
TRACE("Vendor: '%s'\n", lpBuf + INQUIRY_VENDOR);
break;
case CMD_TEST_UNIT_READY:
ASPI_PrintSenseArea16(prb);
break;
}
}
static WORD
ASPI_ExecScsiCmd(DWORD ptrPRB, UINT16 mode)
{
SRB_ExecSCSICmd16 *lpPRB = PTR_TO_LIN( ptrPRB, mode );
struct sg_header *sg_hd, *sg_reply_hdr;
int status;
BYTE *lpBuf = 0;
int in_len, out_len;
int error_code = 0;
int fd;
ASPI_DebugPrintCmd(lpPRB, mode);
fd = ASPI_OpenDevice16(lpPRB);
if (fd == -1) {
WARN("Failed: could not open device. Device permissions !?\n");
lpPRB->SRB_Status = SS_ERR;
return SS_ERR;
}
sg_hd = NULL;
sg_reply_hdr = NULL;
lpPRB->SRB_Status = SS_PENDING;
lpBuf = PTR_TO_LIN( lpPRB->SRB_BufPointer, mode );
if (!lpPRB->SRB_CDBLen) {
WARN("Failed: lpPRB->SRB_CDBLen = 0.\n");
lpPRB->SRB_Status = SS_ERR;
return SS_ERR;
}
/* build up sg_header + scsi cmd */
if (HOST_TO_TARGET(lpPRB)) {
/* send header, command, and then data */
in_len = SCSI_OFF + lpPRB->SRB_CDBLen + lpPRB->SRB_BufLen;
sg_hd = HeapAlloc(GetProcessHeap(), 0, in_len);
memset(sg_hd, 0, SCSI_OFF);
memcpy(sg_hd + 1, &lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
if (lpPRB->SRB_BufLen) {
memcpy(((BYTE *) sg_hd) + SCSI_OFF + lpPRB->SRB_CDBLen, lpBuf, lpPRB->SRB_BufLen);
}
}
else {
/* send header and command - no data */
in_len = SCSI_OFF + lpPRB->SRB_CDBLen;
sg_hd = HeapAlloc(GetProcessHeap(), 0, in_len);
memset(sg_hd, 0, SCSI_OFF);
memcpy(sg_hd + 1, &lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
}
if (TARGET_TO_HOST(lpPRB)) {
out_len = SCSI_OFF + lpPRB->SRB_BufLen;
sg_reply_hdr = HeapAlloc(GetProcessHeap(), 0, out_len);
memset(sg_reply_hdr, 0, SCSI_OFF);
sg_hd->reply_len = out_len;
}
else {
out_len = SCSI_OFF;
sg_reply_hdr = HeapAlloc(GetProcessHeap(), 0, out_len);
memset(sg_reply_hdr, 0, SCSI_OFF);
sg_hd->reply_len = out_len;
}
status = write(fd, sg_hd, in_len);
if (status < 0 || status != in_len) {
int save_error = errno;
WARN("Not enough bytes written to scsi device bytes=%d .. %d\n", in_len, status);
if (status < 0) {
if (save_error == ENOMEM) {
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");
}
WARN("error:= '%s'\n", strerror(save_error));
}
goto error_exit;
}
status = read(fd, sg_reply_hdr, out_len);
if (status < 0 || status != out_len) {
WARN("not enough bytes read from scsi device%d\n", status);
goto error_exit;
}
if (sg_reply_hdr->result != 0) {
error_code = sg_reply_hdr->result;
WARN("reply header error (%d)\n", sg_reply_hdr->result);
goto error_exit;
}
if (TARGET_TO_HOST(lpPRB) && lpPRB->SRB_BufLen) {
memcpy(lpBuf, sg_reply_hdr + 1, lpPRB->SRB_BufLen);
}
/* copy in sense buffer to amount that is available in client */
if (lpPRB->SRB_SenseLen) {
int sense_len = lpPRB->SRB_SenseLen;
if (lpPRB->SRB_SenseLen > 16)
sense_len = 16;
memcpy(SENSE_BUFFER(lpPRB), &sg_reply_hdr->sense_buffer[0], sense_len);
}
lpPRB->SRB_Status = SS_COMP;
lpPRB->SRB_HaStat = HASTAT_OK;
lpPRB->SRB_TargStat = STATUS_GOOD;
/* now do posting */
if (ASPI_POSTING(lpPRB) && lpPRB->SRB_PostProc) {
TRACE("Post Routine (%x) called\n", (DWORD) lpPRB->SRB_PostProc);
switch (mode)
{
case ASPI_DOS:
{
SEGPTR spPRB = MapLS(lpPRB);
WOWCallback16((DWORD)lpPRB->SRB_PostProc, spPRB);
UnMapLS(spPRB);
break;
}
case ASPI_WIN16:
WOWCallback16((DWORD)lpPRB->SRB_PostProc, ptrPRB);
break;
}
}
HeapFree(GetProcessHeap(), 0, sg_reply_hdr);
HeapFree(GetProcessHeap(), 0, sg_hd);
ASPI_DebugPrintResult(lpPRB, mode);
return SS_COMP;
error_exit:
if (error_code == EBUSY) {
lpPRB->SRB_Status = SS_ASPI_IS_BUSY;
TRACE("Device busy\n");
}
else {
WARN("Failed\n");
lpPRB->SRB_Status = SS_ERR;
}
/* I'm not sure exactly error codes work here
* We probably should set lpPRB->SRB_TargStat, SRB_HaStat ?
*/
WARN("error_exit\n");
HeapFree(GetProcessHeap(), 0, sg_reply_hdr);
HeapFree(GetProcessHeap(), 0, sg_hd);
return lpPRB->SRB_Status;
}
#endif
/***********************************************************************
* GetASPISupportInfo (WINASPI.1)
*/
WORD WINAPI GetASPISupportInfo16(void)
{
#ifdef linux
TRACE("GETASPISupportInfo16\n");
/* high byte SS_COMP - low byte number of host adapters */
return ((SS_COMP << 8) | HA_Count);
#else
return ((SS_NO_ASPI << 8) | 0);
#endif
}
static DWORD ASPI_SendASPICommand(DWORD ptrSRB, UINT16 mode)
{
#ifdef linux
LPSRB16 lpSRB = PTR_TO_LIN( ptrSRB, mode );
static const char szId[] = "Wine ASPI16";
static const char szWh[] = "Wine host";
if (mode == ASPI_WIN16 && ASPIChainFunc)
{
/* This is not the post proc, it's the chain proc this time */
DWORD ret = WOWCallback16((DWORD)ASPIChainFunc, ptrSRB);
if (ret)
{
lpSRB->inquiry.SRB_Status = SS_INVALID_SRB;
return ret;
}
}
switch (lpSRB->common.SRB_Cmd) {
case SC_HA_INQUIRY:
lpSRB->inquiry.SRB_Status = SS_COMP; /* completed successfully */
if (lpSRB->inquiry.SRB_55AASignature == 0x55aa) {
TRACE("Extended request detected (Adaptec's ASPIxDOS).\nWe don't support it at the moment.\n");
}
lpSRB->inquiry.SRB_ExtBufferSize = 0x2000; /* bogus value */
lpSRB->inquiry.HA_Count = HA_Count;
lpSRB->inquiry.HA_SCSI_ID = 7; /* not always ID 7 */
memcpy(lpSRB->inquiry.HA_ManagerId, szId, sizeof szId); /* max 15 chars */
memcpy(lpSRB->inquiry.HA_Identifier, szWh, sizeof szWh); /* FIXME: return host
adapter name */
memset(lpSRB->inquiry.HA_Unique, 0, 16); /* default HA_Unique content */
lpSRB->inquiry.HA_Unique[6] = 0x02; /* Maximum Transfer Length (128K, Byte> 4-7) */
FIXME("ASPI: Partially implemented SC_HA_INQUIRY for adapter %d.\n", lpSRB->inquiry.SRB_HaId);
return SS_COMP;
case SC_GET_DEV_TYPE:
FIXME("Not implemented SC_GET_DEV_TYPE\n");
break;
case SC_EXEC_SCSI_CMD:
return ASPI_ExecScsiCmd(ptrSRB, mode);
case SC_RESET_DEV:
FIXME("Not implemented SC_RESET_DEV\n");
break;
default:
FIXME("Unknown command %d\n", lpSRB->common.SRB_Cmd);
}
#endif
return SS_INVALID_SRB;
}
/***********************************************************************
* SendASPICommand (WINASPI.2)
*/
WORD WINAPI SendASPICommand16(SEGPTR segptr_srb)
{
return ASPI_SendASPICommand(segptr_srb, ASPI_WIN16);
}
/***********************************************************************
* InsertInASPIChain (WINASPI.3)
*/
WORD WINAPI InsertInASPIChain16(BOOL16 remove, FARPROC16 pASPIChainFunc)
{
#ifdef linux
if (remove) /* Remove */
{
if (ASPIChainFunc == pASPIChainFunc)
{
ASPIChainFunc = NULL;
return SS_COMP;
}
}
else /* Insert */
{
if (ASPIChainFunc == NULL)
{
ASPIChainFunc = pASPIChainFunc;
return SS_COMP;
}
}
#endif
return SS_ERR;
}
/***********************************************************************
* GETASPIDLLVERSION (WINASPI.4)
*/
DWORD WINAPI GetASPIDLLVersion16(void)
{
#ifdef linux
return 2;
#else
return 0;
#endif
}
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