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Imported Upstream version 0.79.5

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This commit is contained in:
Carlos Maddela
2016-12-19 10:33:34 +11:00
parent 2f23ea4b4a
commit 0a72a11315
1931 changed files with 104660 additions and 254637 deletions
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161
scsi-linux.c
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@@ -1,22 +1,23 @@
/* dvdisaster: Additional error correction for optical media.
* Copyright (C) 2004-2012 Carsten Gnoerlich.
* Project home page: http://www.dvdisaster.com
* Email: carsten@dvdisaster.com -or- cgnoerlich@fsfe.org
* Copyright (C) 2004-2015 Carsten Gnoerlich.
*
* This program is free software; you can redistribute it and/or modify
* 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 2 of the License, or
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA,
* or direct your browser at http://www.gnu.org.
* along with dvdisaster. If not, see <http://www.gnu.org/licenses/>.
*/
#include "dvdisaster.h"
@@ -25,7 +26,7 @@
#include "udf.h"
/***
*** The Linux SCSI wrapper. Uses the uniform CDROM driver. Kernel 2.6.x recommended.
*** The GNU/Linux SCSI wrapper. Uses the uniform CDROM driver. Kernel 2.6.x recommended.
***/
#ifdef SYS_LINUX
@@ -38,6 +39,12 @@ char* DefaultDevice()
const char* dev;
int dev_type;
/* As a convenience, add the simulated drive first. */
InitSimulatedCD();
/* Now probe the physical drives. */
dir = g_dir_open("/dev", 0, NULL);
if(!dir)
@@ -51,8 +58,7 @@ char* DefaultDevice()
while((dev = g_dir_read_name(dir)))
{
if( (strlen(dev) == 3 && (!strncmp(dev,"hd",2) || !strncmp(dev,"sd",2) || !strncmp(dev,"sr", 2)))
|| (strlen(dev) == 4 && !strncmp(dev,"scd",3)) )
if(!strncmp(dev,"scd",3) || !strncmp(dev,"sr", 2))
{ char buf[80];
sprintf(buf,"/dev/%s", dev);
@@ -82,7 +88,7 @@ char* DefaultDevice()
if(Closure->deviceNodes->len)
return g_strdup(g_ptr_array_index(Closure->deviceNodes, 0));
else
{ PrintLog(_("No CD/DVD drives found in /dev.\n"
{ PrintLog(_("No optical drives found in /dev.\n"
"No drives will be pre-selected.\n"));
return g_strdup("/dev/cdrom");
@@ -91,88 +97,45 @@ char* DefaultDevice()
DeviceHandle* OpenDevice(char *device)
{ DeviceHandle *dh;
AlignedBuffer *ab;
Sense *sense;
unsigned char cmd[MAX_CDB_SIZE];
int length;
int phy_int_std;
dh = g_malloc0(sizeof(DeviceHandle));
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->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);
/*** Probe for parallel SCSI.
We can't use the CDROM_SEND_PACKET ioctl with it. */
Verbose("# *** OpenDevice(%s) - GET CONFIGURATION ***\n", device);
length = 2048;
ab = CreateAlignedBuffer(length);
sense = &dh->sense;
/* Query length of returned data */
memset(cmd, 0, MAX_CDB_SIZE);
cmd[0] = 0x46; /* GET CONFIGURATION */
cmd[1] = 0x02; /* only specified feature */
cmd[2] = 0;
cmd[3] = 1; /* we want the core feature (0x0001) */
cmd[7] = length>>8;
cmd[8] = length&0xff; /* Allocation length */
if(SendPacket(dh, cmd, 10, ab->buf, length, sense, DATA_READ)<0)
{
FreeAlignedBuffer(ab);
Verbose("# failed -> could not get core feature: %s\n",
GetSenseString(sense->sense_key, sense->asc, sense->ascq, 0));
if(Closure->useSCSIDriver == DRIVER_CDROM_FORCED)
Verbose("# Would like to play it safe, but CDROM_SEND_PACKET ioctl()\n"
"# forced via command line. Prepare for wreckage.\n");
else
{ Verbose("# Playing it safe. Forcing use of SG_IO ioctl().\n");
dh->forceSG_IO = TRUE;
}
return dh;
}
length = ab->buf[0]<<24 | ab->buf[1] | ab->buf[2] | ab->buf[3];
if(length < 12)
{ FreeAlignedBuffer(ab);
Verbose("# failed -> invalid length for core feature: %d\n", length);
return dh;
}
phy_int_std = ab->buf[12]<<24 | ab->buf[13]<<16 | ab->buf[14]<<8 | ab->buf[15];
Verbose("# physical interface standard: %d\n", phy_int_std);
switch(phy_int_std)
{ case 2: Verbose("# ATAPI. Hopefully not behind a bridge.\n");
break;
case 1: if(Closure->useSCSIDriver == DRIVER_CDROM_FORCED)
Verbose("# SCSI, but CDROM_SEND_PACKET ioctl() forced via command line.\n"
"# Prepare for wreckage.\n");
else
{ Verbose("# SCSI. Forcing use of SG_IO ioctl().\n");
dh->forceSG_IO = TRUE;
}
break;
}
FreeAlignedBuffer(ab);
return dh;
}
void CloseDevice(DeviceHandle *dh)
{
if(dh->simImage)
LargeClose(dh->simImage);
if(dh->canReadDefective)
SetRawMode(dh, MODE_PAGE_UNSET);
@@ -183,14 +146,10 @@ void CloseDevice(DeviceHandle *dh)
close(dh->fd);
if(dh->device)
g_free(dh->device);
if(dh->rs02Header)
g_free(dh->rs02Header);
if(dh->typeDescr)
g_free(dh->typeDescr);
if(dh->mediumDescr)
g_free(dh->mediumDescr);
if(dh->isoInfo)
FreeIsoInfo(dh->isoInfo);
if(dh->defects)
FreeBitmap(dh->defects);
g_free(dh);
@@ -271,7 +230,7 @@ static void test_cdb(unsigned char *cdb, int cdb_size, int direction)
* The CDROM ioctl() interface has been used since the first dvdisaster release.
* However with recent 2.6 kernels it seems to become outdated - several parallel
* SCSI cards are already exhibiting failures using this interface.
* Starting with dvdisaster 0.72.2 and 0.79.3, the SG_IO interface has become
* Starting with dvdisaster 0.79.3, the SG_IO interface has become
* the default now. You can revert back to old behaviour using --driver=cdrom.
*/
@@ -279,12 +238,12 @@ static int send_packet_cdrom(DeviceHandle *dh, unsigned char *cmd, int cdb_size,
{ struct cdrom_generic_command cgc;
#ifdef ASSERT_CDB_LENGTH
test_cdb(cmd, cdb_size, data_mode);
test_cdb(cmd, cdb_size, data_mode);
#endif
memset(&cgc, 0, sizeof(cgc));
memcpy(cgc.cmd, cmd, MAX_CDB_SIZE); /* Linux ignores the CDB size */
memcpy(cgc.cmd, cmd, MAX_CDB_SIZE); /* GNU/Linux ignores the CDB size */
cgc.buffer = buf;
cgc.buflen = size;
cgc.sense = (struct request_sense*)sense;
@@ -318,7 +277,7 @@ static int send_packet_generic(DeviceHandle *dh, unsigned char *cmd, int cdb_siz
{ struct sg_io_hdr sg_io;
#ifdef ASSERT_CDB_LENGTH
test_cdb(cmd, cdb_size, data_mode);
test_cdb(cmd, cdb_size, data_mode);
#endif
memset(&sg_io, 0, sizeof(sg_io));
@@ -367,26 +326,16 @@ static int send_packet_generic(DeviceHandle *dh, unsigned char *cmd, int cdb_siz
}
int SendPacket(DeviceHandle *dh, unsigned char *cmd, int cdb_size, unsigned char *buf, int size, Sense *sense, int data_mode)
{ int driver = Closure->useSCSIDriver;
{
if(dh->simImage)
return SimulateSendPacket(dh, cmd, cdb_size, buf, size, sense, data_mode);
/* Using the CDROM_SEND_PACKET ioctl kills parallel SCSI adapters.
Redirect the necessary probing commands to the SG_IO driver. */
if( (cmd[0] == 0x46 || cmd[0] == 0x12) && driver != DRIVER_CDROM_FORCED)
driver = DRIVER_SG;
if(dh->forceSG_IO)
driver = DRIVER_SG;
/* dispatch to appropriate driver */
switch(driver)
switch(Closure->useSCSIDriver)
{
case DRIVER_SG:
return send_packet_generic(dh, cmd, cdb_size, buf, size, sense, data_mode);
case DRIVER_CDROM_DEFAULT:
case DRIVER_CDROM_FORCED:
case DRIVER_CDROM:
return send_packet_cdrom(dh, cmd, cdb_size, buf, size, sense, data_mode);
default: