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cdparanoia/interface/scan_devices.c

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/******************************************************************
* CopyPolicy: GNU Lesser General Public License 2.1 applies
* Copyright (C) 1998-2008 Monty xiphmont@mit.edu
*
* Autoscan for or verify presence of a cdrom device
*
******************************************************************/
#define _GNU_SOURCE /* get cuserid */
#define _USE_XOPEN /* get cuserid */
#include <limits.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <ctype.h>
#include <pwd.h>
#include <time.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "cdda_interface.h"
#include "low_interface.h"
#include "common_interface.h"
#include "utils.h"
#define MAX_DEV_LEN 20 /* Safe because strings only come from below */
/* must be absolute paths! */
static char *scsi_cdrom_prefixes[]={
"/dev/scd",
"/dev/sr",
NULL};
static char *scsi_generic_prefixes[]={
"/dev/sg",
NULL};
static char *devfs_scsi_test="/dev/scsi/";
static char *devfs_scsi_cd="cd";
static char *devfs_scsi_generic="generic";
static char *cdrom_devices[]={
"/dev/cdrom",
"/dev/cdroms/cdrom?",
"/dev/hd?",
"/dev/sg?",
"/dev/cdu31a",
"/dev/cdu535",
"/dev/sbpcd",
"/dev/sbpcd?",
"/dev/sonycd",
"/dev/mcd",
"/dev/sjcd",
/* "/dev/aztcd", timeout is too long */
"/dev/cm206cd",
"/dev/gscd",
"/dev/optcd",NULL};
/* Functions here look for a cdrom drive; full init of a drive type
happens in interface.c */
cdrom_drive *cdda_find_a_cdrom(int messagedest,char **messages){
/* Brute force... */
int i=0;
cdrom_drive *d;
while(cdrom_devices[i]!=NULL){
/* is it a name or a pattern? */
char *pos;
if((pos=strchr(cdrom_devices[i],'?'))){
int j;
/* try first eight of each device */
for(j=0;j<4;j++){
char *buffer=copystring(cdrom_devices[i]);
/* number, then letter */
buffer[pos-(cdrom_devices[i])]=j+48;
if((d=cdda_identify(buffer,messagedest,messages)))
return(d);
idmessage(messagedest,messages,"",NULL);
buffer[pos-(cdrom_devices[i])]=j+97;
if((d=cdda_identify(buffer,messagedest,messages)))
return(d);
idmessage(messagedest,messages,"",NULL);
}
}else{
/* Name. Go for it. */
if((d=cdda_identify(cdrom_devices[i],messagedest,messages)))
return(d);
idmessage(messagedest,messages,"",NULL);
}
i++;
}
idmessage(messagedest,messages,
"\n\nNo cdrom drives accessible to %s found.\n",
cuserid(NULL));
return(NULL);
}
cdrom_drive *cdda_identify(const char *device, int messagedest,char **messages){
struct stat st;
cdrom_drive *d=NULL;
idmessage(messagedest,messages,"Checking %s for cdrom...",device);
if(stat(device,&st)){
idperror(messagedest,messages,"\tCould not stat %s",device);
return(NULL);
}
#ifndef CDDA_TEST
if (!S_ISCHR(st.st_mode) &&
!S_ISBLK(st.st_mode)){
idmessage(messagedest,messages,"\t%s is not a block or character device",device);
return(NULL);
}
#endif
/* an IDE device may have scsi-ide support, SG_IO support and cooked
support. Prefer the SCSI variants, they give the most control */
d=cdda_identify_scsi(NULL,device,messagedest,messages);
if(!d)d=cdda_identify_cooked(device,messagedest,messages);
#ifdef CDDA_TEST
if(!d)d=cdda_identify_test(device,messagedest,messages);
#endif
return(d);
}
char *test_resolve_symlink(const char *file,int messagedest,char **messages){
char resolved[PATH_MAX];
struct stat st;
if(lstat(file,&st)){
idperror(messagedest,messages,"\t\tCould not stat %s",file);
return(NULL);
}
if(realpath(file,resolved))
return(strdup(resolved));
idperror(messagedest,messages,"\t\tCould not resolve symlink %s",file);
return(NULL);
}
cdrom_drive *cdda_identify_cooked(const char *dev, int messagedest,
char **messages){
cdrom_drive *d=NULL;
struct stat st;
int fd=-1, i;
int type;
char *description=NULL;
char *device;
idmessage(messagedest,messages,"\tTesting %s for cooked ioctl() interface",dev);
device=test_resolve_symlink(dev,messagedest,messages);
if(device==NULL)return(NULL);
if(stat(device,&st)){
idperror(messagedest,messages,"\t\tCould not stat %s",device);
free(device);
return(NULL);
}
if (!S_ISCHR(st.st_mode) &&
!S_ISBLK(st.st_mode)){
idmessage(messagedest,messages,"\t\t%s is not a block or character device",device);
free(device);
return(NULL);
}
type=(int)(st.st_rdev>>8);
switch (type) {
case IDE0_MAJOR:
case IDE1_MAJOR:
case IDE2_MAJOR:
case IDE3_MAJOR:
/* Yay, ATAPI... */
/* Ping for CDROM-ness */
fd=open(device,O_RDONLY|O_NONBLOCK);
if(fd==-1){
idperror(messagedest,messages,"\t\tUnable to open %s",device);
free(device);
return(NULL);
}
if(ioctl_ping_cdrom(fd)){
idmessage(messagedest,messages,"\t\tDevice %s is not a CDROM",device);
close(fd);
free(device);
return(NULL);
}
{
char *temp=atapi_drive_info(fd);
description=catstring(NULL,"ATAPI compatible ");
description=catstring(description,temp);
free(temp);
}
break;
case CDU31A_CDROM_MAJOR:
/* major indicates this is a cdrom; no ping necessary. */
description=copystring("Sony CDU31A or compatible");
break;
case CDU535_CDROM_MAJOR:
/* major indicates this is a cdrom; no ping necessary. */
description=copystring("Sony CDU535 or compatible");
break;
case MATSUSHITA_CDROM_MAJOR:
case MATSUSHITA_CDROM2_MAJOR:
case MATSUSHITA_CDROM3_MAJOR:
case MATSUSHITA_CDROM4_MAJOR:
/* major indicates this is a cdrom; no ping necessary. */
description=copystring("non-ATAPI IDE-style Matsushita/Panasonic CR-5xx or compatible");
break;
case SANYO_CDROM_MAJOR:
description=copystring("Sanyo proprietary or compatible: NOT CDDA CAPABLE");
break;
case MITSUMI_CDROM_MAJOR:
case MITSUMI_X_CDROM_MAJOR:
description=copystring("Mitsumi proprietary or compatible: NOT CDDA CAPABLE");
break;
case OPTICS_CDROM_MAJOR:
description=copystring("Optics Dolphin or compatible: NOT CDDA CAPABLE");
break;
case AZTECH_CDROM_MAJOR:
description=copystring("Aztech proprietary or compatible: NOT CDDA CAPABLE");
break;
case GOLDSTAR_CDROM_MAJOR:
description=copystring("Goldstar proprietary: NOT CDDA CAPABLE");
break;
case CM206_CDROM_MAJOR:
description=copystring("Philips/LMS CM206 proprietary: NOT CDDA CAPABLE");
break;
case SCSI_CDROM_MAJOR:
case SCSI_GENERIC_MAJOR:
/* Nope nope nope */
idmessage(messagedest,messages,"\t\t%s is not a cooked ioctl CDROM.",device);
free(device);
return(NULL);
default:
/* What the hell is this? */
idmessage(messagedest,messages,"\t\t%s is not a cooked ioctl CDROM.",device);
free(device);
return(NULL);
}
/* Minimum init */
d=calloc(1,sizeof(cdrom_drive));
d->cdda_device_name=device;
d->ioctl_device_name=copystring(device);
d->drive_model=description;
d->drive_type=type;
d->cdda_fd=fd;
d->ioctl_fd=fd;
d->interface=COOKED_IOCTL;
d->bigendianp=-1; /* We don't know yet... */
d->nsectors=-1;
d->private=calloc(1,sizeof(*d->private));
{
/* goddamnit */
struct timespec tv;
d->private->clock=(clock_gettime(CLOCK_MONOTONIC,&tv)<0?CLOCK_REALTIME:CLOCK_MONOTONIC);
}
idmessage(messagedest,messages,"\t\tCDROM sensed: %s\n",description);
return(d);
}
struct sg_id {
long l1; /* target | lun << 8 | channel << 16 | low_ino << 24 */
long l2; /* Unique id */
} sg_id;
typedef struct scsiid{
int bus;
int id;
int lun;
} scsiid;
/* Even *this* isn't as simple as it bloody well should be :-P */
/* SG has an easy interface, but SCSI overall does not */
static int get_scsi_id(int fd, scsiid *id){
struct sg_id argid;
int busarg;
/* get the host/id/lun */
if(fd==-1)return(-1);
if(ioctl(fd,SCSI_IOCTL_GET_IDLUN,&argid))return(-1);
id->bus=argid.l2; /* for now */
id->id=argid.l1&0xff;
id->lun=(argid.l1>>8)&0xff;
if(ioctl(fd,SCSI_IOCTL_GET_BUS_NUMBER,&busarg)==0)
id->bus=busarg;
return(0);
}
/* slightly wasteful, but a clean abstraction */
static char *scsi_match(const char *device,char **prefixes,
char *devfs_test,
char *devfs_other,
char *prompt,int messagedest,char **messages){
int dev=open(device,O_RDONLY|O_NONBLOCK);
scsiid a,b;
int i,j;
char buffer[200];
/* if we're running under /devfs, build the device name from the
device we already have */
if(!strncmp(device,devfs_test,strlen(devfs_test))){
char *pos;
strcpy(buffer,device);
pos=strrchr(buffer,'/');
if(pos){
int matchf;
sprintf(pos,"/%s",devfs_other);
matchf=open(buffer,O_RDONLY|O_NONBLOCK);
for (i = 0; (i<10) && (matchf==-1); i++) {
fprintf(stderr, "Error trying to open %s exclusively (%s). retrying in 1 seconds.\n", buffer, strerror(errno));
usleep(1000000 + 100000.0 * rand()/(RAND_MAX+1.0));
matchf = open(buffer,O_RDONLY|O_NONBLOCK);
}
if(matchf!=-1){
close(matchf);
close(dev);
return(strdup(buffer));
}
}
}
/* get the host/id/lun */
if(dev==-1){
idperror(messagedest,messages,"\t\tCould not access device %s",
device);
goto matchfail;
}
if(get_scsi_id(dev,&a)){
idperror(messagedest,messages,"\t\tDevice %s could not perform ioctl()",
device);
goto matchfail;
}
/* go through most likely /dev nodes for a match */
for(i=0;i<25;i++){
for(j=0;j<2;j++){
int pattern=0;
int matchf, k;
while(prefixes[pattern]!=NULL){
switch(j){
case 0:
/* number */
sprintf(buffer,"%s%d",prefixes[pattern],i);
break;
case 1:
/* number */
sprintf(buffer,"%s%c",prefixes[pattern],i+'a');
break;
}
matchf=open(buffer,O_RDONLY|O_NONBLOCK);
for (k = 0; (k<10) && (matchf==-1); k++) {
fprintf(stderr, "Error trying to open %s exclusively (%s). retrying in 1 second.\n", buffer, strerror(errno));
usleep(1000000 + 100000.0 * rand()/(RAND_MAX+1.0));
matchf=open(buffer,O_RDONLY|O_NONBLOCK);
}
if(matchf!=-1){
if(get_scsi_id(matchf,&b)==0){
if(a.bus==b.bus && a.id==b.id && a.lun==b.lun){
close(matchf);
close(dev);
return(strdup(buffer));
}
}
close(matchf);
}
pattern++;
}
}
}
idmessage(messagedest,messages,prompt,device);
matchfail:
if(dev!=-1)close(dev);
return(NULL);
}
void strscat(char *a,char *b,int n){
int i;
for(i=n;i>0;i--)
if(b[i-1]>' ')break;
strncat(a,b,i);
strcat(a," ");
}
/* At this point, we're going to punt compatability before SG2, and
allow only SG2 and SG3 */
static int verify_SG_version(cdrom_drive *d,int messagedest,
char **messages){
/* are we using the new SG driver by Doug Gilbert? If not, punt */
int version,major,minor;
char buffer[256];
idmessage(messagedest,messages,
"\nFound an accessible SCSI CDROM drive."
"\nLooking at revision of the SG interface in use...","");
if(ioctl(d->cdda_fd,SG_GET_VERSION_NUM,&version)){
/* Up, guess not. */
idmessage(messagedest,messages,
"\tOOPS! Old 2.0/early 2.1/early 2.2.x (non-ac patch) style "
"SG.\n\tCdparanoia no longer supports the old interface.\n","");
return(0);
}
major=version/10000;
version-=major*10000;
minor=version/100;
version-=minor*100;
sprintf(buffer,"\tSG interface version %d.%d.%d; OK.",
major,minor,version);
idmessage(messagedest,messages,buffer,"");
return(major);
}
int check_sgio(const char *device, int messagedest, char **messages){
int fd;
struct sg_io_hdr hdr;
if (!device) return 0;
/* we don't really care what type of device it is -- if it can do
* SG_IO, then we'll put it through the normal mmc/atapi/etc tests
* later, but it's good enough for now. */
fd = open(device, O_RDWR|O_NONBLOCK);
if (fd < 0){
idperror(messagedest,messages,
"\t\tCould not access device %s to test for SG_IO support",device);
return 0;
}
memset(&hdr, 0, sizeof (struct sg_io_hdr));
/* First try with interface_id = 'A'; for all but the sg case,
* that'll get us a -EINVAL if it supports SG_IO, and some other
* error for all other cases. */
hdr.interface_id = 'A';
if (ioctl(fd, SG_IO, &hdr)) {
switch (errno) {
case EINVAL: /* sr and ata give us EINVAL when SG_IO is
* supported but interface_id is bad. */
case ENOSYS: /* sg gives us ENOSYS when SG_IO is supported but
* interface_id is bad. IMHO, this is wrong and
* needs fixing in the kernel. */
close(fd);
return 1;
default: /* everything else gives ENOTTY, I think. I'm just
* going to be paranoid and reject everything else. */
close(fd);
return 0;
}
}
/* if we get here, something is dreadfuly wrong. ioctl(fd,SG_IO,&hdr)
* handled SG_IO, but took hdr.interface_id = 'A' as valid, and an empty
* command as good. Don't trust it. */
close(fd);
return 0;
}
/* scanning is always done by specifying a device name in
specialized_device; generic_device is only filled when the generic device
force option is used, and in that case, use of SG (not SGIO) should indeed be
forced */
cdrom_drive *cdda_identify_scsi(const char *generic_device,
const char *specialized_device, int messagedest,
char **messages){
cdrom_drive *d=NULL;
struct stat i_st;
struct stat g_st;
int use_sgio=1;
int i_fd=-1, i;
int g_fd=-1;
int version;
int type;
char *p;
if(generic_device)
idmessage(messagedest,messages,"\tTesting %s for SCSI/MMC interface",
generic_device);
else
if(specialized_device)
idmessage(messagedest,messages,"\tTesting %s for SCSI/MMC interface",
specialized_device);
if(generic_device){
use_sgio = 0;
idmessage(messagedest,messages,"\t\tgeneric device forced; not testing for SG_IO interface",
generic_device);
if(stat(generic_device,&g_st)){
idperror(messagedest,messages,"\t\tCould not access device %s",
generic_device);
return(NULL);
}
if((int)(g_st.st_rdev>>8)!=SCSI_GENERIC_MAJOR){
idmessage(messagedest,messages,"\t\t%s is not a generic SCSI device",
generic_device);
return(NULL);
}
}
if(specialized_device){
if(stat(specialized_device,&i_st)){
idperror(messagedest,messages,"\t\tCould not access device %s",
specialized_device);
return(NULL);
}
}
/* we need to resolve any symlinks for the lookup code to work */
if(generic_device){
generic_device=test_resolve_symlink(generic_device,messagedest,messages);
if(generic_device==NULL)goto cdda_identify_scsi_fail;
}
if(specialized_device){
specialized_device=test_resolve_symlink(specialized_device,messagedest,messages);
if(specialized_device==NULL)goto cdda_identify_scsi_fail;
}
/* sgio is always preferred if it's there, unless user has forced the generic scsi device name */
if(use_sgio){
if(check_sgio(specialized_device,messagedest,messages)){
idmessage(messagedest,messages,"\t\tSG_IO device: %s",specialized_device);
}else{
idmessage(messagedest,messages,"\t\tno SG_IO support for device: %s",specialized_device);
use_sgio=0;
}
}
if(!use_sgio){
/* was a generic device passed in as the specialized device name? */
if(specialized_device){
if((int)(i_st.st_rdev>>8)==SCSI_GENERIC_MAJOR){
char *temp=(char *)generic_device;
generic_device=specialized_device;
specialized_device=temp;
}
if(!generic_device || !specialized_device){
if(generic_device){
specialized_device=
scsi_match(generic_device,scsi_cdrom_prefixes,
devfs_scsi_test,devfs_scsi_cd,
"\t\tNo cdrom device found to match generic device %s",
messagedest,messages);
}else{
generic_device=
scsi_match(specialized_device,scsi_generic_prefixes,
devfs_scsi_test,devfs_scsi_generic,
"\t\tNo generic SCSI device found to match CDROM device %s",
messagedest,messages);
if(!generic_device)
goto cdda_identify_scsi_fail;
}
}
}
idmessage(messagedest,messages,"\t\tgeneric device: %s",generic_device);
idmessage(messagedest,messages,"\t\tioctl device: %s",(specialized_device?
specialized_device:
"not found"));
if(specialized_device){
if(stat(specialized_device,&i_st)){
idperror(messagedest,messages,"\t\tCould not access cdrom device "
"%s",specialized_device);
goto cdda_identify_scsi_fail;
}
}
if(stat(generic_device,&g_st)){
idperror(messagedest,messages,"\t\tCould not access generic SCSI device "
"%s",generic_device);
goto cdda_identify_scsi_fail;
}
}
if(specialized_device) {
if(use_sgio)
i_fd=open(specialized_device,O_RDWR|O_NONBLOCK);
else
i_fd=open(specialized_device,O_RDONLY|O_NONBLOCK);
}
if(generic_device)
g_fd=open(generic_device,O_RDWR);
if(specialized_device && i_fd==-1){
idperror(messagedest,messages,"\t\tCould not open cdrom device "
"%s (continuing)",specialized_device);
goto cdda_identify_scsi_fail;
}
if(generic_device && g_fd==-1){
idperror(messagedest,messages,"\t\tCould not open generic SCSI device "
"%s",generic_device);
goto cdda_identify_scsi_fail;
}
if(i_fd!=-1){
type=(int)(i_st.st_rdev>>8);
if(!use_sgio){
if(type==SCSI_CDROM_MAJOR){
if (!S_ISBLK(i_st.st_mode)) {
idmessage(messagedest,messages,"\t\tSCSI CDROM device %s not a "
"block device",specialized_device);
goto cdda_identify_scsi_fail;
}
}else{
idmessage(messagedest,messages,"\t\tSCSI CDROM device %s has wrong "
"major number",specialized_device);
goto cdda_identify_scsi_fail;
}
}
}
if(g_fd != -1){
if((int)(g_st.st_rdev>>8)==SCSI_GENERIC_MAJOR){
if (!S_ISCHR(g_st.st_mode)) {
idmessage(messagedest,messages,"\t\tGeneric SCSI device %s not a "
"char device",generic_device);
goto cdda_identify_scsi_fail;
}
}else{
idmessage(messagedest,messages,"\t\tGeneric SCSI device %s has wrong "
"major number",generic_device);
goto cdda_identify_scsi_fail;
}
}
d=calloc(1,sizeof(cdrom_drive));
d->drive_type=type;
d->cdda_fd=g_fd;
d->ioctl_fd=i_fd;
d->bigendianp=-1; /* We don't know yet... */
d->nsectors=-1;
d->messagedest = messagedest;
d->private=calloc(1,sizeof(*d->private));
{
/* goddamnit */
struct timespec tv;
d->private->clock=(clock_gettime(CLOCK_MONOTONIC,&tv)<0?CLOCK_REALTIME:CLOCK_MONOTONIC);
}
if(use_sgio){
d->interface=SGIO_SCSI;
d->private->sg_buffer=(unsigned char *)(d->private->sg_hd=malloc(MAX_BIG_BUFF_SIZE));
g_fd=d->cdda_fd=dup(d->ioctl_fd);
}else{
version=verify_SG_version(d,messagedest,messages);
switch(version){
case -1:case 0:case 1:
d->interface=GENERIC_SCSI;
goto cdda_identify_scsi_fail;
case 2:case 3:
d->interface=GENERIC_SCSI;
break;
}
/* malloc our big buffer for scsi commands */
d->private->sg_hd=malloc(MAX_BIG_BUFF_SIZE);
d->private->sg_buffer=((unsigned char *)d->private->sg_hd)+SG_OFF;
}
{
/* get the lun */
scsiid lun;
if(get_scsi_id(i_fd,&lun))
d->lun=0; /* a reasonable guess on a failed ioctl */
else
d->lun=lun.lun;
}
p = (char *)scsi_inquiry(d);
if (!p){
/* 2.6 kernels have a bug where the block layer implements
SG_DXFER_TO_FROM_DEVICE as a write operation instead of read.
I've submitted a kernel patch, but it will take a while to
propogate. Work around it for now. --Monty */
if(d->interface == SGIO_SCSI){
/* test the inquiry with the workaround */
d->interface = SGIO_SCSI_BUGGY1;
p = (char *)scsi_inquiry(d);
if(p){
idmessage(messagedest,messages,
"\t\tThis kernel's block layer has a buggy SG_DXFER_TO_FROM_DEVICE;\n\t\t activating workaround.\n",NULL);
}else{
/* Failed for some reason other than the buggy ioctl(); set the interface type back */
d->interface = SGIO_SCSI;
}
}
}
if (!p){
idmessage(messagedest,messages,
"\t\tInquiry command failed; unable to probe drive\n",NULL);
goto cdda_identify_scsi_fail;
}
/* It would seem some TOSHIBA CDROMs gets things wrong */
if (p &&
!strncmp (p + 8, "TOSHIBA", 7) &&
!strncmp (p + 16, "CD-ROM", 6) &&
p[0] == TYPE_DISK) {
p[0] = TYPE_ROM;
p[1] |= 0x80; /* removable */
}
if (*p != TYPE_ROM && *p != TYPE_WORM) {
idmessage(messagedest,messages,
"\t\tDrive is neither a CDROM nor a WORM device\n",NULL);
goto cdda_identify_scsi_fail;
}
d->drive_model=calloc(36,1);
memcpy(d->inqbytes,p,4);
d->cdda_device_name=copystring(generic_device);
d->ioctl_device_name=copystring(specialized_device);
d->drive_model=calloc(36,1);
strscat(d->drive_model,p+8,8);
strscat(d->drive_model,p+16,16);
strscat(d->drive_model,p+32,4);
idmessage(messagedest,messages,"\nCDROM model sensed sensed: %s",d->drive_model);
return(d);
cdda_identify_scsi_fail:
if(generic_device)free((char *)generic_device);
if(specialized_device)free((char *)specialized_device);
if(i_fd!=-1)close(i_fd);
if(g_fd!=-1)close(g_fd);
if(d){
if(d->private){
if(d->private->sg_hd)free(d->private->sg_hd);
free(d->private);
}
free(d);
}
return(NULL);
}
#ifdef CDDA_TEST
cdrom_drive *cdda_identify_test(const char *filename, int messagedest,
char **messages){
cdrom_drive *d=NULL;
struct stat st;
int fd=-1,i;
idmessage(messagedest,messages,"\tTesting %s for file/test interface",
filename);
if(stat(filename,&st)){
idperror(messagedest,messages,"\t\tCould not access file %s",
filename);
return(NULL);
}
if(!S_ISREG(st.st_mode)){
idmessage(messagedest,messages,"\t\t%s is not a regular file",
filename);
return(NULL);
}
fd=open(filename,O_RDONLY);
if(fd==-1){
idperror(messagedest,messages,"\t\tCould not open file %s",filename);
return(NULL);
}
d=calloc(1,sizeof(cdrom_drive));
d->cdda_device_name=copystring(filename);
d->ioctl_device_name=copystring(filename);
d->drive_type=-1;
d->cdda_fd=fd;
d->ioctl_fd=fd;
d->interface=TEST_INTERFACE;
d->bigendianp=-1; /* We don't know yet... */
d->nsectors=-1;
d->private=calloc(1,sizeof(*d->private));
d->drive_model=copystring("File based test interface");
idmessage(messagedest,messages,"\t\tCDROM sensed: %s\n",d->drive_model);
return(d);
}
#endif
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