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Imported Upstream version 0.79.3

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This commit is contained in:
Rogério Brito
2010-12-13 14:18:26 -02:00
parent 555c0daf7d
commit 205701b3de
614 changed files with 4486 additions and 2191 deletions
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67
scsi-linux.c
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@@ -141,38 +141,60 @@ static void assert_cdb_length(unsigned char cdb, int cdb_size, int expected_size
cdb_size, cdb, expected_size);
}
static void test_cdb(unsigned char *cdb, int cdb_size)
static void assert_cdb_direction(unsigned char cdb, int expected, int given)
{
if(expected != given)
PrintLog("SendPacket(): Wrong data direction %d for opcode %0x (expected %d)\n",
given, cdb, expected);
}
static void test_cdb(unsigned char *cdb, int cdb_size, int direction)
{
switch(cdb[0])
{ case 0x00: assert_cdb_length(cdb[0], cdb_size, 6); /* TEST UNIT READY */
assert_cdb_direction(cdb[0], DATA_NONE, direction);
break;
case 0x12: assert_cdb_length(cdb[0], cdb_size, 6); /* INQUIRY */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
case 0x1b: assert_cdb_length(cdb[0], cdb_size, 6); /* START STOP */
assert_cdb_direction(cdb[0], DATA_NONE, direction);
break;
case 0x1e: assert_cdb_length(cdb[0], cdb_size, 6); /* PREVENT ALLOW MEDIUM REMOVAL */
assert_cdb_direction(cdb[0], DATA_NONE, direction);
break;
case 0x23: assert_cdb_length(cdb[0], cdb_size, 10); /* READ FORMAT CAPACITIES */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
case 0x25: assert_cdb_length(cdb[0], cdb_size, 10); /* READ CAPACITY */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
case 0x28: assert_cdb_length(cdb[0], cdb_size, 10); /* READ(10) */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
case 0x43: assert_cdb_length(cdb[0], cdb_size, 10); /* READ TOC/PMA/ATIP */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
case 0x46: assert_cdb_length(cdb[0], cdb_size, 10); /* GET CONFIGURATION */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
case 0x51: assert_cdb_length(cdb[0], cdb_size, 10); /* READ DISC INFORMATION */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
case 0x52: assert_cdb_length(cdb[0], cdb_size, 10); /* READ TRACK INFORMATION */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
case 0x55: assert_cdb_length(cdb[0], cdb_size, 10); /* MODE SELECT */
assert_cdb_direction(cdb[0], DATA_WRITE, direction);
break;
case 0x5a: assert_cdb_length(cdb[0], cdb_size, 10); /* MODE SENSE */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
case 0xad: assert_cdb_length(cdb[0], cdb_size, 12); /* READ DVD STRUCTURE */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
case 0xbe: assert_cdb_length(cdb[0], cdb_size, 12); /* READ CD */
assert_cdb_direction(cdb[0], DATA_READ, direction);
break;
default:
PrintLog("SendPacket(): Unknown opcode %0x\n", cdb[0]);
@@ -181,15 +203,18 @@ static void test_cdb(unsigned char *cdb, int cdb_size)
#endif
/*
* The CDROM ioctl() interface has been used since the first dvdisaster
* release - it's the proven way of accessing the drive.
* 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 0.79.3, the SG_IO interface has become
* the default now. You can revert back to old behaviour using --driver=cdrom.
*/
static int send_packet_cdrom(DeviceHandle *dh, unsigned char *cmd, int cdb_size, unsigned char *buf, int size, Sense *sense, int data_mode)
{ struct cdrom_generic_command cgc;
#ifdef ASSERT_CDB_LENGTH
test_cdb(cmd, cdb_size);
test_cdb(cmd, cdb_size, data_mode);
#endif
memset(&cgc, 0, sizeof(cgc));
@@ -207,6 +232,9 @@ static int send_packet_cdrom(DeviceHandle *dh, unsigned char *cmd, int cdb_size,
case DATA_WRITE:
cgc.data_direction = CGC_DATA_WRITE;
break;
case DATA_NONE:
cgc.data_direction = CGC_DATA_NONE;
break;
default:
Stop("illegal data_mode: %d", data_mode);
}
@@ -216,15 +244,18 @@ static int send_packet_cdrom(DeviceHandle *dh, unsigned char *cmd, int cdb_size,
/*
* Access to the drive through the generic SCSI interface
* has been added in dvdisaster 0.72 - it may have undetected flaws.
* Only use it if there are problems with the normal CDROM interface
* (some ancient parallel SCSI adapters/drives seem to fall into this
* category).
* has been added in dvdisaster 0.72 - it seems to be better
* maintained than the older CDROM_SEND_PACKET interface now.
* Especially parallel SCSI cdroms require this now.
*/
static int send_packet_generic(DeviceHandle *dh, unsigned char *cmd, int cdb_size, unsigned char *buf, int size, Sense *sense, int data_mode)
{ struct sg_io_hdr sg_io;
#ifdef ASSERT_CDB_LENGTH
test_cdb(cmd, cdb_size, data_mode);
#endif
memset(&sg_io, 0, sizeof(sg_io));
sg_io.interface_id = 'S';
@@ -235,6 +266,9 @@ static int send_packet_generic(DeviceHandle *dh, unsigned char *cmd, int cdb_siz
case DATA_WRITE:
sg_io.dxfer_direction = SG_DXFER_TO_DEV;
break;
case DATA_NONE:
sg_io.dxfer_direction = SG_DXFER_NONE;
break;
default:
Stop("illegal data_mode: %d", data_mode);
}
@@ -269,9 +303,20 @@ 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)
{
if(!Closure->useSGioctl)
return send_packet_cdrom(dh, cmd, cdb_size, buf, size, sense, data_mode);
else return send_packet_generic(dh, cmd, cdb_size, buf, size, sense, data_mode);
switch(Closure->useSCSIDriver)
{
case DRIVER_SG:
return send_packet_generic(dh, cmd, cdb_size, buf, size, sense, data_mode);
case DRIVER_CDROM:
return send_packet_cdrom(dh, cmd, cdb_size, buf, size, sense, data_mode);
default:
Stop("no SCSI driver selected");
break;
}
return -1;
}
#endif /* SYS_LINUX */