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/* dvdisaster: Additional error correction for optical media.
* Copyright (C) 2004-2015 Carsten Gnoerlich.
*
* Email: carsten@dvdisaster.org -or- cgnoerlich@fsfe.org
* Project homepage: http://www.dvdisaster.org
*
* This file is part of dvdisaster.
*
* dvdisaster is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dvdisaster is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dvdisaster. If not, see <http://www.gnu.org/licenses/>.
*/
/* NetBSD support by Sergey Svishchev <svs@ropnet.ru>.
*/
#include "dvdisaster.h"
#include "scsi-layer.h"
#include "udf.h"
#ifdef SYS_NETBSD
#include <sys/device.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/scsiio.h>
#include <util.h>
char* DefaultDevice()
{ DeviceHandle *dh;
char *disknames, *p, raw;
int dev_type, sysctl_mib[2];
size_t sysctl_len;
/* As a convenience, add the simulated drive first. */
InitSimulatedCD();
/* Now probe the physical drives. */
raw = 'a' + getrawpartition();
sysctl_mib[0] = CTL_HW;
sysctl_mib[1] = HW_DISKNAMES;
if (-1 == sysctl(sysctl_mib, 2, NULL, &sysctl_len, NULL, 0)) {
PrintLog("Failed to get value of sysctl `hw.disknames'\n");
return g_strdup("no_drives");
}
if (!(disknames = g_malloc(sysctl_len))) {
PrintLog("Out of memory constructing scan device list\n");
return g_strdup("no_drives");
}
if (-1 == sysctl(sysctl_mib, 2, disknames, &sysctl_len, NULL, 0)) {
PrintLog("Failed to get value of sysctl `hw.disknames'\n");
g_free(disknames);
return g_strdup("no_drives");
}
dh = g_malloc(sizeof(DeviceHandle));
for (p = strtok(disknames, " "); p; p = strtok(NULL, " "))
{
if(!strncmp(p,"cd",2))
{ char buf[80];
sprintf(buf,"/dev/r%s%c", p, raw);
memset(dh, 0, sizeof(DeviceHandle));
dh->fd = open(buf, O_RDONLY | O_NONBLOCK);
dh->device = buf;
if(dh->fd < 0) /* device not even present */
continue;
dev_type = InquireDevice(dh, 1);
close(dh->fd);
if(dev_type != 5) /* not a CD/DVD ROM */
continue;
g_ptr_array_add(Closure->deviceNodes, g_strdup(buf));
sprintf(buf, "%s (/dev/r%s%c)", dh->devinfo, p, raw);
g_ptr_array_add(Closure->deviceNames, g_strdup(buf));
}
}
g_free(dh);
if(Closure->deviceNodes->len)
return g_strdup(g_ptr_array_index(Closure->deviceNodes, 0));
else
{ PrintLog(_("No optical drives found.\n"
"No drives will be pre-selected.\n"));
return g_strdup("no_drives");
}
}
DeviceHandle* OpenDevice(char *device)
{ DeviceHandle *dh;
dh = g_malloc0(sizeof(DeviceHandle));
dh->senseSize = sizeof(Sense);
if(!strcmp(device, "sim-cd"))
{ if(!Closure->simulateCD) /* can happen via resource file / last-device */
{ g_free(dh);
return NULL;
}
dh->simImage = LargeOpen(Closure->simulateCD, O_RDONLY, IMG_PERMS);
if(!dh->simImage)
{ g_free(dh);
Stop(_("Could not open %s: %s"), Closure->simulateCD, strerror(errno));
return NULL;
}
}
else
{ dh->fd = open(device, O_RDWR | O_NONBLOCK);
if(dh->fd < 0)
{ g_free(dh);
Stop(_("Could not open %s: %s"),device, strerror(errno));
return NULL;
}
}
dh->device = g_strdup(device);
return dh;
}
void CloseDevice(DeviceHandle *dh)
{
if(dh->canReadDefective)
SetRawMode(dh, MODE_PAGE_UNSET);
if(dh->rawBuffer)
FreeRawBuffer(dh->rawBuffer);
if(dh->fd)
close(dh->fd);
if(dh->device)
g_free(dh->device);
if(dh->typeDescr)
g_free(dh->typeDescr);
if(dh->mediumDescr)
g_free(dh->mediumDescr);
if(dh->defects)
FreeBitmap(dh->defects);
g_free(dh);
}
int SendPacket(DeviceHandle *dh, unsigned char *cmd, int cdb_size, unsigned char *buf, int size, Sense *sense, int data_mode)
{ struct scsireq sc;
int sense_len;
int rc;
if(dh->simImage)
return SimulateSendPacket(dh, cmd, cdb_size, buf, size, sense, data_mode);
/* prepare the scsi request */
memset(&sc, 0, sizeof(sc));
memcpy(sc.cmd, cmd, cdb_size);
sc.cmdlen = cdb_size;
sc.databuf = (char *)buf;
sc.datalen = size;
sc.senselen = 24; /* Maybe SENSEBUFLEN would be better? -cg */
sc.timeout = 60000; /* linux uses 5000 = 5 * HZ */
switch(data_mode)
{ case DATA_READ:
sc.flags = SCCMD_READ;
break;
case DATA_WRITE:
sc.flags = SCCMD_WRITE;
break;
case DATA_NONE:
sc.flags = 0;
break;
default:
Stop("illegal data_mode: %d", data_mode);
}
/* Send the request and save the sense data. */
rc = ioctl(dh->fd, SCIOCCOMMAND, &sc);
sense_len = sc.senselen_used;
if(sense_len > dh->senseSize)
sense_len = dh->senseSize;
memcpy(sense, sc.sense, sense_len);
/* See what we've got back */
if(rc<0) return rc; /* does not happen on SCSI errors */
switch(sc.retsts)
{ case SCCMD_OK: /* everything went fine */
return 0;
case SCCMD_TIMEOUT: /* we don't know how to handle that yet */
PrintLog("SendPacket() - SCSI timeout\n");
return -1;
case SCCMD_BUSY: /* same here */
PrintLog("SendPacket() - target busy\n");
return -1;
case SCCMD_SENSE: /* SCSI error occurred, sense data available */
return -1;
default: /* something other went wrong */
return -1;
}
return -1; /* unreachable */
}
#endif /* SYS_NETBSD */
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