Sweden-Number/dlls/wnaspi32/winaspi32.c

485 lines
13 KiB
C

#include "config.h"
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <memory.h>
#include <unistd.h>
#include "winbase.h"
#include "aspi.h"
#include "wnaspi32.h"
#include "options.h"
#include "heap.h"
#include "debugtools.h"
#include "ldt.h"
#include "callback.h"
DEFAULT_DEBUG_CHANNEL(aspi)
/* FIXME!
* 1) Residual byte length reporting not handled
* 2) Make this code re-entrant for multithreading
* -- Added CriticalSection to OpenDevices function
* 3) Only linux supported so far
* 4) Leaves sg devices open. This may or may not be okay. A better solution
* would be to close the file descriptors when the thread/process using
* them no longer needs them.
*/
#ifdef linux
static ASPI_DEVICE_INFO *ASPI_open_devices = NULL;
static CRITICAL_SECTION ASPI_CritSection;
#endif /* defined(linux) */
BOOL WINAPI WNASPI32_LibMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID fImpLoad)
{
#ifdef linux
static BOOL bInitDone=FALSE;
#if 0
TRACE("0x%x 0x%1x %p\n", hInstDLL, fdwReason, fImpLoad);
#endif
switch( fdwReason )
{
case DLL_PROCESS_ATTACH:
/* Create instance data */
if(!bInitDone)
{
/* Initialize global stuff just once */
InitializeCriticalSection(&ASPI_CritSection);
bInitDone=TRUE;
}
break;
case DLL_PROCESS_DETACH:
/* Destroy instance data */
break;
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
break;
}
return TRUE;
#else /* defined(linux) */
return TRUE;
#endif /* defined(linux) */
}
#ifdef linux
static int
ASPI_OpenDevice(SRB_ExecSCSICmd *prb)
{
int fd;
char idstr[20];
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.
*/
EnterCriticalSection(&ASPI_CritSection);
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) {
LeaveCriticalSection(&ASPI_CritSection);
return curr->fd;
}
}
LeaveCriticalSection(&ASPI_CritSection);
/* device wasn't cached, go ahead and open it */
sprintf(idstr, "scsi c%1dt%1dd%1d", prb->SRB_HaId, prb->SRB_Target, prb->SRB_Lun);
if (!PROFILE_GetWineIniString(idstr, "Device", "", device_str, sizeof(device_str))) {
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;
#ifdef HAVE_STRERROR
ERR("Error opening device %s, error '%s'\n", device_str, strerror(save_error));
#else
ERR("Error opening device %s, error %d\n", device_str, save_error);
#endif
return -1;
}
/* device is now open */
curr = HeapAlloc( SystemHeap, 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 */
EnterCriticalSection(&ASPI_CritSection);
curr->next = ASPI_open_devices;
ASPI_open_devices = curr;
LeaveCriticalSection(&ASPI_CritSection);
return fd;
}
static void
ASPI_DebugPrintCmd(SRB_ExecSCSICmd *prb)
{
BYTE cmd;
int i;
BYTE *cdb;
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_TRANSFERED(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: %ld\n", prb->SRB_BufLen);
TRACE("SenseLen: %d\n", prb->SRB_SenseLen);
TRACE("BufPtr: %p\n", prb->SRB_BufPointer);
TRACE("CDB Length: %d\n", prb->SRB_CDBLen);
TRACE("POST Proc: %lx\n", (DWORD) prb->SRB_PostProc);
cdb = &prb->CDBByte[0];
cmd = prb->CDBByte[0];
if (TRACE_ON(aspi))
{
DPRINTF("CDB buffer[");
for (i = 0; i < prb->SRB_CDBLen; i++) {
if (i != 0) DPRINTF(",");
DPRINTF("%02x", *cdb++);
}
DPRINTF("]\n");
}
}
static void
ASPI_PrintSenseArea(SRB_ExecSCSICmd *prb)
{
int i;
BYTE *cdb;
if (TRACE_ON(aspi))
{
cdb = &prb->CDBByte[16];
DPRINTF("SenseArea[");
for (i = 0; i < prb->SRB_SenseLen; i++) {
if (i) DPRINTF(",");
DPRINTF("%02x", *cdb++);
}
DPRINTF("]\n");
}
}
static void
ASPI_DebugPrintResult(SRB_ExecSCSICmd *prb)
{
TRACE("SRB_Status: %x\n", prb->SRB_Status);
TRACE("SRB_HaStat: %x\n", prb->SRB_HaStat);
TRACE("SRB_TargStat: %x\n", prb->SRB_TargStat);
switch (prb->CDBByte[0]) {
case CMD_INQUIRY:
TRACE("Vendor: '%s'\n", prb->SRB_BufPointer + INQUIRY_VENDOR);
break;
case CMD_TEST_UNIT_READY:
ASPI_PrintSenseArea(prb);
break;
}
}
static WORD
ASPI_ExecScsiCmd(SRB_ExecSCSICmd *lpPRB)
{
struct sg_header *sg_hd, *sg_reply_hdr;
int status;
int in_len, out_len;
int error_code = 0;
int fd;
ASPI_DebugPrintCmd(lpPRB);
fd = ASPI_OpenDevice(lpPRB);
if (fd == -1) {
ERR("Failed: could not open device c%01dt%01dd%01d. Device permissions !?\n",
lpPRB->SRB_HaId,lpPRB->SRB_Target,lpPRB->SRB_Lun);
lpPRB->SRB_Status = SS_NO_DEVICE;
return SS_NO_DEVICE;
}
sg_hd = NULL;
sg_reply_hdr = NULL;
lpPRB->SRB_Status = SS_PENDING;
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 = (struct sg_header *) 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, lpPRB->SRB_BufPointer, lpPRB->SRB_BufLen);
}
}
else {
/* send header and command - no data */
in_len = SCSI_OFF + lpPRB->SRB_CDBLen;
sg_hd = (struct sg_header *) 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 = (struct sg_header *) 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 = (struct sg_header *) 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");
}
#ifdef HAVE_STRERROR
WARN("error:= '%s'\n", strerror(save_error));
#else
WARN("error:= %d\n", save_error);
#endif
}
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(lpPRB->SRB_BufPointer, 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;
/* CDB is fixed in WNASPI32 */
memcpy(&lpPRB->CDBByte[16], &sg_reply_hdr->sense_buffer[0], sense_len);
TRACE("CDB is %d bytes long\n", lpPRB->SRB_CDBLen );
ASPI_PrintSenseArea(lpPRB);
}
lpPRB->SRB_Status = SS_COMP;
lpPRB->SRB_HaStat = HASTAT_OK;
lpPRB->SRB_TargStat = sg_reply_hdr->target_status << 1;
/* FIXME: Should this be != 0 maybe? */
if( lpPRB->SRB_TargStat == 2 )
lpPRB->SRB_Status = SS_ERR;
ASPI_DebugPrintResult(lpPRB);
/* now do posting */
if (lpPRB->SRB_PostProc) {
if (ASPI_POSTING(lpPRB)) {
TRACE("Post Routine (%lx) called\n", (DWORD) lpPRB->SRB_PostProc);
(*lpPRB->SRB_PostProc)(lpPRB);
}
else
if (lpPRB->SRB_Flags & SRB_EVENT_NOTIFY) {
TRACE("Setting event %04x\n", (HANDLE)lpPRB->SRB_PostProc);
SetEvent((HANDLE)lpPRB->SRB_PostProc); /* FIXME: correct ? */
}
}
HeapFree(GetProcessHeap(), 0, sg_reply_hdr);
HeapFree(GetProcessHeap(), 0, sg_hd);
return SS_PENDING;
/* In real WNASPI32 stuff really is always pending because ASPI does things
in the background, but we are not doing that (yet) */
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 /* defined(linux) */
/*******************************************************************
* GetASPI32SupportInfo32 [WNASPI32.0]
*
* Checks if the ASPI subsystem is initialized correctly.
*
* RETURNS
* HIWORD: 0.
* HIBYTE of LOWORD: status (SS_COMP or SS_FAILED_INIT)
* LOBYTE of LOWORD: # of host adapters.
*/
DWORD WINAPI GetASPI32SupportInfo()
{
return ((SS_COMP << 8) | 1); /* FIXME: get # of host adapters installed */
}
/***********************************************************************
* SendASPI32Command32 (WNASPI32.1)
*/
DWORD __cdecl SendASPI32Command(LPSRB lpSRB)
{
#ifdef linux
switch (lpSRB->common.SRB_Cmd) {
case SC_HA_INQUIRY:
lpSRB->inquiry.SRB_Status = SS_COMP; /* completed successfully */
lpSRB->inquiry.HA_Count = 1; /* not always */
lpSRB->inquiry.HA_SCSI_ID = 7; /* not always ID 7 */
strcat(lpSRB->inquiry.HA_ManagerId, "ASPI for WIN32"); /* max 15 chars, don't change */
strcat(lpSRB->inquiry.HA_Identifier, "Wine host"); /* 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: We should return SS_NO_DEVICE if the device is not configured */
/* FIXME: We should return SS_INVALID_HA if HostAdapter!=0 */
SRB tmpsrb;
char inqbuf[200];
memset(&tmpsrb,0,sizeof(tmpsrb));
tmpsrb.cmd.SRB_Cmd = SC_EXEC_SCSI_CMD;
#define X(x) tmpsrb.cmd.SRB_##x = lpSRB->devtype.SRB_##x
X(Status);X(HaId);X(Flags);X(Target);X(Lun);
#undef X
tmpsrb.cmd.SRB_BufLen = sizeof(inqbuf);
tmpsrb.cmd.SRB_Flags = 8;/*target->host data. FIXME: anything more?*/
tmpsrb.cmd.SRB_BufPointer = inqbuf;
tmpsrb.cmd.CDBByte[0] = 0x12; /* INQUIRY */
tmpsrb.cmd.CDBByte[4] = sizeof(inqbuf);
tmpsrb.cmd.SRB_CDBLen = 6;
ASPI_ExecScsiCmd(&tmpsrb.cmd);
#define X(x) lpSRB->devtype.SRB_##x = tmpsrb.cmd.SRB_##x
X(Status);
#undef X
lpSRB->devtype.SRB_DeviceType = inqbuf[0]&0x1f;
TRACE("returning devicetype %d for target %d\n",inqbuf[0]&0x1f,tmpsrb.cmd.SRB_Target);
break;
}
case SC_EXEC_SCSI_CMD:
return ASPI_ExecScsiCmd(&lpSRB->cmd);
break;
case SC_ABORT_SRB:
FIXME("Not implemented SC_ABORT_SRB\n");
break;
case SC_RESET_DEV:
FIXME("Not implemented SC_RESET_DEV\n");
break;
#ifdef SC_GET_DISK_INFO
case SC_GET_DISK_INFO:
/* NT Doesn't implement this either.. so don't feel bad */
WARN("Not implemented SC_GET_DISK_INFO\n");
break;
#endif
default:
WARN("Unknown command %d\n", lpSRB->common.SRB_Cmd);
}
return SS_INVALID_SRB;
#else
return SS_INVALID_SRB;
#endif
}
/***********************************************************************
* GetASPI32DLLVersion32 (WNASPI32.3)
*/
DWORD WINAPI GetASPI32DLLVersion()
{
#ifdef linux
return (DWORD)1;
#else
return (DWORD)0;
#endif
}