351 lines
8.2 KiB
C
351 lines
8.2 KiB
C
/**************************************************************************
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ASPI routines
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(C) 2000 David Elliott <dfe@netnitco.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/stat.h>
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.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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#include "file.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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/* 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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}
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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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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 HEKY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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return 0;
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}
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if( RegQueryValueExA(hkeyScsi, NULL, NULL, &type, (LPBYTE)&num_ha, &cbData ) != ERROR_SUCCESS )
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{
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ERR("Could not query value HEKY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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num_ha=0;
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}
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RegCloseKey(hkeyScsi);
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FIXME("Please fix to return number of controllers\n");
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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 HEKY_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 retval;
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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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retval = (controller << 16);
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return retval;
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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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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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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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TRACE("open failed\n");
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FILE_SetDosError(); /* SetLastError() to errno */
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TRACE("GetLastError: %ld\n", GetLastError());
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}
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return fd;
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}
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#ifdef linux
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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 errno=%d!\n",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 FILE_SetDosError() 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 Liunx 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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FILE_SetDosError();
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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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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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FILE_SetDosError();
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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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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: scsi%d Channel: %d Id: %d Lun: %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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return EOF;
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if( result != 4 )
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return 0;
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result = fscanf( procfile,
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" Vendor: %8c Model: %16c Rev: %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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return 0;
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result = fscanf( procfile,
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" Type: %32c ANSI SCSI revision: %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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return 0;
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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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#endif
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static void
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SCSI_GetProcinfo()
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/* I'll admit, this function is somewhat of a mess... it was originally
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* designed to make some sort of linked list then I realized that
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* HKEY_DYN_DATA would be a lot less messy
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*/
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{
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#ifdef linux
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FILE * procfile = NULL;
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int result = 0;
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struct LinuxProcScsiDevice dev;
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char idstr[20];
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char devstr[20];
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int devnum=0;
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int num_ha = 0;
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HKEY hkeyScsi;
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DWORD disposition;
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procfile = fopen( "/proc/scsi/scsi", "r" );
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if( !procfile )
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{
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ERR("Could not open /proc/scsi/scsi\n");
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return;
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}
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result = fscanf( procfile, "Attached devices: \n");
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if( result != 0 )
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{
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ERR("Incorrect /proc/scsi/scsi format");
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return;
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}
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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 create HEKY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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return;
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}
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/* Read info for one device */
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while( (result = SCSI_getprocentry(procfile, &dev)) > 0 )
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{
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/* Add to registry */
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sprintf(idstr, "h%02dc%02dt%02dd%02d", dev.host, dev.channel, dev.target, dev.lun);
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sprintf(devstr, "/dev/sg%c", 'a'+devnum);
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if( RegSetValueExA(hkeyScsi, idstr, 0, REG_SZ, devstr, strlen(devstr)+1 ) != ERROR_SUCCESS )
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{
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ERR("Could not set value HEKY_DYN_DATA\\%s\\%s\n",KEYNAME_SCSI, idstr);
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}
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/* Debug output */
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SCSI_printprocentry( &dev );
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/* FIXME: We *REALLY* need number of controllers.. not ha */
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/* num of hostadapters is highest ha + 1 */
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if( dev.host >= num_ha )
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num_ha = dev.host+1;
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devnum++;
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} /* while(1) */
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if( result != EOF )
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{
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ERR("Incorrect /proc/scsi/scsi format");
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}
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fclose( procfile );
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if( RegSetValueExA(hkeyScsi, NULL, 0, REG_DWORD, (LPBYTE)&num_ha, sizeof(num_ha) ) != ERROR_SUCCESS )
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{
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ERR("Could not set value HEKY_DYN_DATA\\%s\n",KEYNAME_SCSI);
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}
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RegCloseKey(hkeyScsi);
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return;
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#endif
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}
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