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646 lines
16 KiB
C
646 lines
16 KiB
C
/**************************************************************************
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ASPI routines
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(C) 2000 David Elliott <dfe@infinite-internet.net>
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Licensed under the WINE (X11) license
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*/
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/* These routines are to be called from either WNASPI32 or WINASPI */
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/* FIXME:
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* - Registry format is stupid for now.. fix that later
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* - No way to override automatic /proc detection, maybe provide an
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* HKEY_LOCAL_MACHINE\Software\Wine\Wine\Scsi regkey
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* - Somewhat debating an #ifdef linux... technically all this code will
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* run on another UNIX.. it will fail nicely.
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* - Please add support for mapping multiple channels on host adapters to
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* aspi controllers, e-mail me if you need help.
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*/
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/*
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Registry format is currently:
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HKEY_DYN_DATA
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WineScsi
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(default)=number of host adapters
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hHHcCCtTTdDD=linux device name
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include "debugtools.h"
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#include "winreg.h"
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#include "winerror.h"
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#include "winescsi.h"
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DEFAULT_DEBUG_CHANNEL(aspi);
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/* Internal function prototypes */
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static void
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SCSI_GetProcinfo();
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#ifdef linux
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static void
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SCSI_MapHCtoController();
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#endif
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static void set_last_error(void)
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{
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int save_errno = errno; /* errno gets overwritten by printf */
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switch (errno)
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{
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case EAGAIN:
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SetLastError( ERROR_SHARING_VIOLATION );
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break;
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case EBADF:
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SetLastError( ERROR_INVALID_HANDLE );
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break;
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case ENOSPC:
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SetLastError( ERROR_HANDLE_DISK_FULL );
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break;
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case EACCES:
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case EPERM:
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case EROFS:
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SetLastError( ERROR_ACCESS_DENIED );
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break;
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case EBUSY:
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SetLastError( ERROR_LOCK_VIOLATION );
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break;
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case ENOENT:
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SetLastError( ERROR_FILE_NOT_FOUND );
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break;
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case EISDIR:
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SetLastError( ERROR_CANNOT_MAKE );
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break;
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case ENFILE:
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case EMFILE:
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SetLastError( ERROR_NO_MORE_FILES );
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break;
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case EEXIST:
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SetLastError( ERROR_FILE_EXISTS );
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break;
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case EINVAL:
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case ESPIPE:
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SetLastError( ERROR_SEEK );
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break;
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case ENOTEMPTY:
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SetLastError( ERROR_DIR_NOT_EMPTY );
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break;
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case ENOEXEC:
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SetLastError( ERROR_BAD_FORMAT );
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break;
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default:
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WARN( "unknown file error: %s\n", strerror(save_errno) );
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SetLastError( ERROR_GEN_FAILURE );
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break;
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}
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errno = save_errno;
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}
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/* Exported functions */
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void
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SCSI_Init()
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{
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/* For now we just call SCSI_GetProcinfo */
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SCSI_GetProcinfo();
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#ifdef linux
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SCSI_MapHCtoController();
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#endif
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}
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int
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ASPI_GetNumControllers()
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{
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HKEY hkeyScsi;
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HKEY hkeyControllerMap;
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DWORD error;
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DWORD type = REG_DWORD;
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DWORD num_ha = 0;
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DWORD cbData = sizeof(num_ha);
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if( RegOpenKeyExA(HKEY_DYN_DATA, KEYNAME_SCSI, 0, KEY_ALL_ACCESS, &hkeyScsi ) != ERROR_SUCCESS )
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{
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ERR("Could not open HKEY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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return 0;
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}
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if( (error=RegOpenKeyExA(hkeyScsi, KEYNAME_SCSI_CONTROLLERMAP, 0, KEY_ALL_ACCESS, &hkeyControllerMap )) != ERROR_SUCCESS )
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{
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ERR("Could not open HKEY_DYN_DATA\\%s\\%s\n", KEYNAME_SCSI, KEYNAME_SCSI_CONTROLLERMAP);
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RegCloseKey(hkeyScsi);
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SetLastError(error);
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return 0;
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}
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if( RegQueryValueExA(hkeyControllerMap, NULL, NULL, &type, (LPBYTE)&num_ha, &cbData ) != ERROR_SUCCESS )
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{
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ERR("Could not query value HKEY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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num_ha=0;
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}
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RegCloseKey(hkeyControllerMap);
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RegCloseKey(hkeyScsi);
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TRACE("Returning %ld host adapters\n", num_ha );
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return num_ha;
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}
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BOOL
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SCSI_GetDeviceName( int h, int c, int t, int d, LPSTR devstr, LPDWORD lpcbData )
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{
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char idstr[20];
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HKEY hkeyScsi;
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DWORD type;
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if( RegOpenKeyExA(HKEY_DYN_DATA, KEYNAME_SCSI, 0, KEY_ALL_ACCESS, &hkeyScsi ) != ERROR_SUCCESS )
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{
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ERR("Could not open HKEY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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return FALSE;
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}
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sprintf(idstr, "h%02dc%02dt%02dd%02d", h, c, t, d);
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if( RegQueryValueExA(hkeyScsi, idstr, NULL, &type, devstr, lpcbData) != ERROR_SUCCESS )
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{
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WARN("Could not query value HKEY_DYN_DATA\\%s\\%s\n",KEYNAME_SCSI, idstr);
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RegCloseKey(hkeyScsi);
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return FALSE;
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}
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RegCloseKey(hkeyScsi);
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TRACE("scsi %s: Device name: %s\n",idstr,devstr);
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return TRUE;
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}
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/* SCSI_GetHCforController
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* RETURNS
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* HIWORD: Host Adapter
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* LOWORD: Channel
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*/
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DWORD
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ASPI_GetHCforController( int controller )
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{
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DWORD hc = 0xFFFFFFFF;
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char cstr[20];
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DWORD error;
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HKEY hkeyScsi;
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HKEY hkeyControllerMap;
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DWORD type = REG_DWORD;
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DWORD cbData = sizeof(DWORD);
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DWORD disposition;
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#if 0
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FIXME("Please fix to map each channel of each host adapter to the proper ASPI controller number!\n");
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hc = (controller << 16);
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return hc;
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#endif
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if( (error=RegCreateKeyExA(HKEY_DYN_DATA, KEYNAME_SCSI, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &hkeyScsi, &disposition )) != ERROR_SUCCESS )
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{
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ERR("Could not open HKEY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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SetLastError(error);
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return hc;
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}
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if( disposition != REG_OPENED_EXISTING_KEY )
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{
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WARN("Created HKEY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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}
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if( (error=RegCreateKeyExA(hkeyScsi, KEYNAME_SCSI_CONTROLLERMAP, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &hkeyControllerMap, &disposition )) != ERROR_SUCCESS )
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{
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ERR("Could not open HKEY_DYN_DATA\\%s\\%s\n", KEYNAME_SCSI, KEYNAME_SCSI_CONTROLLERMAP);
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RegCloseKey(hkeyScsi);
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SetLastError(error);
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return hc;
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}
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if( disposition != REG_OPENED_EXISTING_KEY )
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{
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WARN("Created HKEY_DYN_DATA\\%s\\%s\n",KEYNAME_SCSI, KEYNAME_SCSI_CONTROLLERMAP);
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}
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sprintf(cstr, "c%02d", controller);
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if( (error=RegQueryValueExA( hkeyControllerMap, cstr, 0, &type, (LPBYTE)&hc, &cbData)) != ERROR_SUCCESS )
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{
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ERR("Could not open HKEY_DYN_DATA\\%s\\%s\\%s, error=%lx\n", KEYNAME_SCSI, KEYNAME_SCSI_CONTROLLERMAP, cstr, error );
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SetLastError( error );
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}
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RegCloseKey(hkeyControllerMap);
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RegCloseKey(hkeyScsi);
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return hc;
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};
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int
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SCSI_OpenDevice( int h, int c, int t, int d )
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{
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char devstr[20];
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DWORD cbData = 20;
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int fd = -1;
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char dainbread_linux_hack = 1;
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if(!SCSI_GetDeviceName( h, c, t, d, devstr, &cbData ))
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{
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WARN("Could not get device name for h%02dc%02dt%02dd%02d\n", h, c, t, d);
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return -1;
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}
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linux_hack:
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TRACE("Opening device %s mode O_RDWR\n",devstr);
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fd = open(devstr, O_RDWR);
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if( fd < 0 )
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{
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int len = strlen(devstr);
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set_last_error(); /* SetLastError() to errno */
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TRACE("Open failed (%s)\n", strerror(errno));
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/* in case of "/dev/sgX", convert from sga to sg0
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* and the other way around.
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* FIXME: remove it if the distributions
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* finally manage to agree on something.
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* The best would probably be a complete
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* rewrite of the Linux SCSI layer
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* to use CAM + devfs :-) */
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if ( (dainbread_linux_hack) &&
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(len >= 3) &&
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(devstr[len-3] == 's') && (devstr[len-2] == 'g') )
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{
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char *p = &devstr[len-1];
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*p = (*p >= 'a') ? *p - 'a' + '0' : *p - '0' + 'a';
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dainbread_linux_hack = 0;
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TRACE("Retry with \"equivalent\" Linux device '%s'\n", devstr);
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goto linux_hack;
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}
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}
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return fd;
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}
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#ifdef linux
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/* SCSI_Fix_CMD_LEN
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* Checks to make sure the CMD_LEN is correct
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*/
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void
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SCSI_Fix_CMD_LEN(int fd, int cmd, int len)
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{
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int index=(cmd>>5)&7;
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if (len!=scsi_command_size[index])
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{
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TRACE("CDBLen for command %d claims to be %d, expected %d\n",
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cmd, len, scsi_command_size[index]);
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ioctl(fd,SG_NEXT_CMD_LEN,&len);
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}
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}
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int
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SCSI_LinuxSetTimeout( int fd, int timeout )
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{
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int retval;
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TRACE("Setting timeout to %d jiffies\n", timeout);
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retval=ioctl(fd,SG_SET_TIMEOUT,&timeout);
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if(retval)
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{
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WARN("Could not set timeout ! (%s)\n", strerror(errno));
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}
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return retval;
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}
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/* This function takes care of the write/read to the linux sg device.
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* It returns TRUE or FALSE and uses set_last_error() to convert
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* UNIX errno to Windows GetLastError(). The reason for that is that
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* several programs will check that error and we might as well set
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* it here. We also return the value of the read call in
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* lpcbBytesReturned.
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*/
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BOOL /* NOTE: This function SHOULD BLOCK */
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SCSI_LinuxDeviceIo( int fd,
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struct sg_header * lpInBuffer, DWORD cbInBuffer,
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struct sg_header * lpOutBuffer, DWORD cbOutBuffer,
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LPDWORD lpcbBytesReturned )
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{
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DWORD dwBytes;
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DWORD save_error;
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TRACE("Writing to Linux sg device\n");
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dwBytes = write( fd, lpInBuffer, cbInBuffer );
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if( dwBytes != cbInBuffer )
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{
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set_last_error();
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save_error = GetLastError();
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WARN("Not enough bytes written to scsi device. bytes=%ld .. %ld\n", cbInBuffer, dwBytes );
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/* FIXME: set_last_error() never sets error to ERROR_NOT_ENOUGH_MEMORY... */
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if( save_error == ERROR_NOT_ENOUGH_MEMORY )
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MESSAGE("Your Linux kernel was not able to handle the amount of data sent to the scsi device. Try recompiling with a larger SG_BIG_BUFF value (kernel 2.0.x sg.h)");
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WARN("error= %ld\n", save_error );
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*lpcbBytesReturned = 0;
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return FALSE;
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}
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TRACE("Reading reply from Linux sg device\n");
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*lpcbBytesReturned = read( fd, lpOutBuffer, cbOutBuffer );
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if( *lpcbBytesReturned != cbOutBuffer )
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{
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set_last_error();
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save_error = GetLastError();
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WARN("Not enough bytes read from scsi device. bytes=%ld .. %ld\n", cbOutBuffer, *lpcbBytesReturned);
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WARN("error= %ld\n", save_error );
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return FALSE;
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}
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return TRUE;
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}
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/* Internal functions */
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struct LinuxProcScsiDevice
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{
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int host;
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int channel;
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int target;
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int lun;
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char vendor[9];
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char model[17];
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char rev[5];
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char type[33];
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int ansirev;
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};
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/*
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* we need to declare white spaces explicitly via %*1[ ],
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* as there are very dainbread CD-ROM devices out there
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* which have their manufacturer name blanked out via spaces,
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* which confuses fscanf's parsing (skips all blank spaces)
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*/
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static int
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SCSI_getprocentry( FILE * procfile, struct LinuxProcScsiDevice * dev )
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{
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int result;
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result = fscanf( procfile,
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"Host:%*1[ ]scsi%d%*1[ ]Channel:%*1[ ]%d%*1[ ]Id:%*1[ ]%d%*1[ ]Lun:%*1[ ]%d\n",
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&dev->host,
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&dev->channel,
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&dev->target,
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&dev->lun );
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if( result == EOF )
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{
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/* "end of entries" return, so no TRACE() here */
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return EOF;
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}
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if( result != 4 )
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{
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ERR("bus id line scan count error\n");
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return 0;
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}
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result = fscanf( procfile,
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" Vendor:%*1[ ]%8c%*1[ ]Model:%*1[ ]%16c%*1[ ]Rev:%*1[ ]%4c\n",
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dev->vendor,
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dev->model,
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dev->rev );
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if( result != 3 )
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{
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ERR("model line scan count error\n");
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return 0;
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}
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result = fscanf( procfile,
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" Type:%*3[ ]%32c%*1[ ]ANSI%*1[ ]SCSI%*1[ ]revision:%*1[ ]%d\n",
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dev->type,
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&dev->ansirev );
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if( result != 2 )
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{
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ERR("SCSI type line scan count error\n");
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return 0;
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}
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/* Since we fscanf with %XXc instead of %s.. put a NULL at end */
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dev->vendor[8] = 0;
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dev->model[16] = 0;
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dev->rev[4] = 0;
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dev->type[32] = 0;
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return 1;
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}
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static void
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SCSI_printprocentry( const struct LinuxProcScsiDevice * dev )
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{
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TRACE( "Host: scsi%d Channel: %02d Id: %02d Lun: %02d\n",
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dev->host,
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dev->channel,
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dev->target,
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dev->lun );
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TRACE( " Vendor: %s Model: %s Rev: %s\n",
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dev->vendor,
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dev->model,
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dev->rev );
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TRACE( " Type: %s ANSI SCSI revision: %02d\n",
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dev->type,
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dev->ansirev );
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}
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static BOOL
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SCSI_PutRegControllerMap( HKEY hkeyControllerMap, int num_controller, int ha, int chan)
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{
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DWORD error;
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char cstr[20];
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DWORD hc;
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hc = (ha << 16) + chan;
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sprintf(cstr, "c%02d", num_controller);
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if( (error=RegSetValueExA( hkeyControllerMap, cstr, 0, REG_DWORD, (LPBYTE)&hc, sizeof(DWORD))) != ERROR_SUCCESS )
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{
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ERR("Could not create HKEY_DYN_DATA\\%s\\%s\\%s\n", KEYNAME_SCSI, KEYNAME_SCSI_CONTROLLERMAP, cstr );
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}
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return error;
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}
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static void
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SCSI_MapHCtoController()
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{
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HKEY hkeyScsi;
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HKEY hkeyControllerMap;
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DWORD disposition;
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char idstr[20];
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DWORD cbIdStr;
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int i = 0;
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DWORD type = 0;
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DWORD error;
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DWORD num_controller = 0;
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int last_ha = -1;
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int last_chan = -1;
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int ha = 0;
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int chan = 0;
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if( RegCreateKeyExA(HKEY_DYN_DATA, KEYNAME_SCSI, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &hkeyScsi, &disposition ) != ERROR_SUCCESS )
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{
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ERR("Could not open HKEY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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return;
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}
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if( disposition != REG_OPENED_EXISTING_KEY )
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{
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WARN("Created HKEY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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}
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if( RegCreateKeyExA(hkeyScsi, KEYNAME_SCSI_CONTROLLERMAP, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &hkeyControllerMap, &disposition ) != ERROR_SUCCESS )
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{
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ERR("Could not create HKEY_DYN_DATA\\%s\\%s\n", KEYNAME_SCSI, KEYNAME_SCSI_CONTROLLERMAP);
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RegCloseKey(hkeyScsi);
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return;
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}
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for( i=0; cbIdStr = sizeof(idstr), (error=RegEnumValueA( hkeyScsi, i, idstr, &cbIdStr, NULL, &type, NULL, NULL )) == ERROR_SUCCESS; i++ )
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{
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if(idstr[0] == '\0') continue; /* skip the default value */
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if(sscanf(idstr, "h%02dc%02dt%*02dd%*02d", &ha, &chan) != 2) {
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ERR("incorrect reg. value %s\n", debugstr_a(idstr));
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continue;
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}
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if( last_ha < ha )
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{ /* Next HA */
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last_ha = ha;
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last_chan = chan;
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SCSI_PutRegControllerMap( hkeyControllerMap, num_controller, ha, chan);
|
|
num_controller++;
|
|
}
|
|
else if( last_ha > ha )
|
|
{
|
|
FIXME("Expected registry to be sorted\n");
|
|
}
|
|
/* last_ha == ha */
|
|
else if( last_chan < chan )
|
|
{
|
|
last_chan = chan;
|
|
SCSI_PutRegControllerMap( hkeyControllerMap, num_controller, ha, chan);
|
|
num_controller++;
|
|
}
|
|
else if( last_chan > chan )
|
|
{
|
|
FIXME("Expected registry to be sorted\n");
|
|
}
|
|
/* else last_ha == ha && last_chan == chan so do nothing */
|
|
}
|
|
/* Set (default) value to number of controllers */
|
|
if( RegSetValueExA(hkeyControllerMap, NULL, 0, REG_DWORD, (LPBYTE)&num_controller, sizeof(DWORD) ) != ERROR_SUCCESS )
|
|
{
|
|
ERR("Could not set value HKEY_DYN_DATA\\%s\\%s\n",KEYNAME_SCSI, KEYNAME_SCSI_CONTROLLERMAP);
|
|
}
|
|
RegCloseKey(hkeyControllerMap);
|
|
RegCloseKey(hkeyScsi);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
int SCSI_Linux_CheckDevices(void)
|
|
{
|
|
DIR *devdir;
|
|
struct dirent *dent = NULL;
|
|
|
|
devdir = opendir("/dev");
|
|
for (dent=readdir(devdir);dent;dent=readdir(devdir))
|
|
{
|
|
if (!(strncmp(dent->d_name, "sg", 2)))
|
|
break;
|
|
}
|
|
closedir(devdir);
|
|
|
|
if (dent == NULL)
|
|
{
|
|
TRACE("WARNING: You don't have any /dev/sgX generic scsi devices ! \"man MAKEDEV\" !\n");
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
SCSI_GetProcinfo()
|
|
/* I'll admit, this function is somewhat of a mess... it was originally
|
|
* designed to make some sort of linked list then I realized that
|
|
* HKEY_DYN_DATA would be a lot less messy
|
|
*/
|
|
{
|
|
#ifdef linux
|
|
static const char procname[] = "/proc/scsi/scsi";
|
|
FILE * procfile = NULL;
|
|
|
|
char read_line[40], read1[10] = "\0", read2[10] = "\0";
|
|
int result = 0;
|
|
|
|
struct LinuxProcScsiDevice dev;
|
|
|
|
char idstr[20];
|
|
char devstr[20];
|
|
|
|
int devnum=0;
|
|
int num_ha = 0;
|
|
|
|
HKEY hkeyScsi;
|
|
DWORD disposition;
|
|
|
|
/* Check whether user has generic scsi devices at all */
|
|
if (!(SCSI_Linux_CheckDevices()))
|
|
return;
|
|
|
|
procfile = fopen( procname, "r" );
|
|
if( !procfile )
|
|
{
|
|
ERR("Could not open %s\n", procname);
|
|
return;
|
|
}
|
|
|
|
fgets(read_line, 40, procfile);
|
|
sscanf( read_line, "Attached %9s %9s", read1, read2);
|
|
|
|
if(strcmp(read1, "devices:"))
|
|
{
|
|
ERR("Incorrect %s format\n", procname);
|
|
return;
|
|
}
|
|
|
|
if(!(strcmp(read2, "none")))
|
|
{
|
|
ERR("No devices found in %s. Make sure you loaded your SCSI driver or set up ide-scsi emulation for your IDE device if this app needs it !\n", procname);
|
|
return;
|
|
}
|
|
|
|
if( RegCreateKeyExA(HKEY_DYN_DATA, KEYNAME_SCSI, 0, NULL, REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &hkeyScsi, &disposition ) != ERROR_SUCCESS )
|
|
{
|
|
ERR("Could not create HKEY_DYN_DATA\\%s\n",KEYNAME_SCSI);
|
|
return;
|
|
}
|
|
|
|
/* Read info for one device */
|
|
while( (result = SCSI_getprocentry(procfile, &dev)) > 0 )
|
|
{
|
|
/* Add to registry */
|
|
|
|
sprintf(idstr, "h%02dc%02dt%02dd%02d", dev.host, dev.channel, dev.target, dev.lun);
|
|
sprintf(devstr, "/dev/sg%c", 'a'+devnum);
|
|
if( RegSetValueExA(hkeyScsi, idstr, 0, REG_SZ, devstr, strlen(devstr)+1 ) != ERROR_SUCCESS )
|
|
{
|
|
ERR("Could not set value HKEY_DYN_DATA\\%s\\%s\n",KEYNAME_SCSI, idstr);
|
|
}
|
|
|
|
/* Debug output */
|
|
SCSI_printprocentry( &dev );
|
|
|
|
/* FIXME: We *REALLY* need number of controllers.. not ha */
|
|
/* num of hostadapters is highest ha + 1 */
|
|
if( dev.host >= num_ha )
|
|
num_ha = dev.host+1;
|
|
devnum++;
|
|
} /* while(1) */
|
|
if( result != EOF )
|
|
{
|
|
ERR("Sorry, incorrect %s format\n", procname);
|
|
}
|
|
fclose( procfile );
|
|
if( RegSetValueExA(hkeyScsi, NULL, 0, REG_DWORD, (LPBYTE)&num_ha, sizeof(num_ha) ) != ERROR_SUCCESS )
|
|
{
|
|
ERR("Could not set value HKEY_DYN_DATA\\%s\n",KEYNAME_SCSI);
|
|
}
|
|
RegCloseKey(hkeyScsi);
|
|
return;
|
|
#endif
|
|
}
|