/*
* Return the status of the device. This was meant
* to be a generic routine. Unfortunately, it doesn't
* seem possible (at least I do not know how to do it
* currently), which means that for the moment, this
* routine has very little value.
*
* Returns: status
*/
uint32_t status_dev(DEVICE *dev)
{
struct mtget mt_stat;
uint32_t stat = 0;
if (dev->state & (ST_EOT | ST_WEOT)) {
stat |= BMT_EOD;
Pmsg0(-20, " EOD");
}
if (dev->state & ST_EOF) {
stat |= BMT_EOF;
Pmsg0(-20, " EOF");
}
if (dev->is_tape()) {
stat |= BMT_TAPE;
Pmsg0(-20,_(" Bacula status:"));
Pmsg2(-20,_(" file=%d block=%d\n"), dev->file, dev->block_num);
if (dev->d_ioctl(dev->fd(), MTIOCGET, (char *)&mt_stat) < 0) {
berrno be;
dev->dev_errno = errno;
Mmsg2(dev->errmsg, _("ioctl MTIOCGET error on %s. ERR=%s.\n"),
dev->print_name(), be.bstrerror());
return 0;
}
Pmsg0(-20, _(" Device status:"));
#if defined(HAVE_LINUX_OS)
if (GMT_EOF(mt_stat.mt_gstat)) {
stat |= BMT_EOF;
Pmsg0(-20, " EOF");
}
if (GMT_BOT(mt_stat.mt_gstat)) {
stat |= BMT_BOT;
Pmsg0(-20, " BOT");
}
if (GMT_EOT(mt_stat.mt_gstat)) {
stat |= BMT_EOT;
Pmsg0(-20, " EOT");
}
if (GMT_SM(mt_stat.mt_gstat)) {
stat |= BMT_SM;
Pmsg0(-20, " SM");
}
if (GMT_EOD(mt_stat.mt_gstat)) {
stat |= BMT_EOD;
Pmsg0(-20, " EOD");
}
if (GMT_WR_PROT(mt_stat.mt_gstat)) {
stat |= BMT_WR_PROT;
Pmsg0(-20, " WR_PROT");
}
if (GMT_ONLINE(mt_stat.mt_gstat)) {
stat |= BMT_ONLINE;
Pmsg0(-20, " ONLINE");
}
if (GMT_DR_OPEN(mt_stat.mt_gstat)) {
stat |= BMT_DR_OPEN;
Pmsg0(-20, " DR_OPEN");
}
if (GMT_IM_REP_EN(mt_stat.mt_gstat)) {
stat |= BMT_IM_REP_EN;
Pmsg0(-20, " IM_REP_EN");
}
#elif defined(HAVE_WIN32)
if (GMT_EOF(mt_stat.mt_gstat)) {
stat |= BMT_EOF;
Pmsg0(-20, " EOF");
}
if (GMT_BOT(mt_stat.mt_gstat)) {
stat |= BMT_BOT;
Pmsg0(-20, " BOT");
}
if (GMT_EOT(mt_stat.mt_gstat)) {
stat |= BMT_EOT;
Pmsg0(-20, " EOT");
}
if (GMT_EOD(mt_stat.mt_gstat)) {
stat |= BMT_EOD;
Pmsg0(-20, " EOD");
}
if (GMT_WR_PROT(mt_stat.mt_gstat)) {
stat |= BMT_WR_PROT;
Pmsg0(-20, " WR_PROT");
}
if (GMT_ONLINE(mt_stat.mt_gstat)) {
stat |= BMT_ONLINE;
Pmsg0(-20, " ONLINE");
}
if (GMT_DR_OPEN(mt_stat.mt_gstat)) {
stat |= BMT_DR_OPEN;
Pmsg0(-20, " DR_OPEN");
}
if (GMT_IM_REP_EN(mt_stat.mt_gstat)) {
stat |= BMT_IM_REP_EN;
Pmsg0(-20, " IM_REP_EN");
}
#endif /* !SunOS && !OSF */
if (dev->has_cap(CAP_MTIOCGET)) {
Pmsg2(-20, _(" file=%d block=%d\n"), mt_stat.mt_fileno, mt_stat.mt_blkno);
} else {
Pmsg2(-20, _(" file=%d block=%d\n"), -1, -1);
}
} else {
stat |= BMT_ONLINE | BMT_BOT;
}
return stat;
}
static
int w32_internal_rc ( U32* pStat )
{
ASSERT( pStat ); // (sanity check)
// PROGRAMMING NOTE: the 'door open' (no tape in drive) and the
// 'write protected' statuses are "sticky" in that they never change
// until a new/different tape is mounted. All the other statuses
// however, change dynamically as one does i/o to the tape...
if (0
|| ERROR_BUS_RESET == errno // (See KB 111837: "ERROR_BUS_RESET May Be Benign")
|| ERROR_MEDIA_CHANGED == errno
|| ERROR_DEVICE_NOT_CONNECTED == errno // (shouldn't occur but we'll check anyway)
|| ERROR_DEV_NOT_EXIST == errno // (shouldn't occur but we'll check anyway)
|| ERROR_FILE_NOT_FOUND == errno // (shouldn't occur but we'll check anyway)
)
{
*pStat &= ~GMT_DR_OPEN (0xFFFFFFFF);
*pStat &= ~GMT_WR_PROT (0xFFFFFFFF);
}
// (see PROGRAMMING NOTE above)
*pStat &= ~GMT_BOT (0xFFFFFFFF);
*pStat &= ~GMT_SM (0xFFFFFFFF);
*pStat &= ~GMT_EOF (0xFFFFFFFF);
*pStat &= ~GMT_EOT (0xFFFFFFFF);
*pStat &= ~GMT_EOD (0xFFFFFFFF);
if (0
|| ERROR_BUS_RESET == errno // (spurious error; retry)
|| ERROR_MEDIA_CHANGED == errno // (spurious error; retry)
// || ERROR_DEVICE_NOT_CONNECTED == errno // (PERM ERROR! NO RETRY!)
// || ERROR_DEV_NOT_EXIST == errno // (PERM ERROR! NO RETRY!)
// || ERROR_FILE_NOT_FOUND == errno // (PERM ERROR! NO RETRY!)
)
{
return EINTR; // (Interrupted system call; Retry)
}
// (see PROGRAMMING NOTE further above)
switch (errno)
{
default:
break; // (leave errno set to whatever it already is)
case NO_ERROR:
errno = 0;
break; // (normal expected i/o result)
case ERROR_BEGINNING_OF_MEDIA:
*pStat |= GMT_BOT (0xFFFFFFFF);
errno = EIO;
break;
case ERROR_END_OF_MEDIA:
*pStat |= GMT_EOT (0xFFFFFFFF);
errno = ENOSPC;
break;
// "ERROR_END_OF_MEDIA"
//
// Msg: "The physical end of the tape has been reached."
//
// The EOT warning reflector has been reached or passed (i.e. you're
// now/still in the "EOT Warning Zone" area). Writing additional data
// and/or tapemarks may still be possible depending on the size of the
// EOT Warning Zone (as set by a SetTapeParameters call with a non-zero
// EOTWarningZoneSize value (if supported; see further below)) and
// how much data you've already written to the EOT Warning Zone area
// (i.e. once you're in the warning area, this "error" occurs after
// EACH and EVERY I/O [in the warning zone area] until the ABSOLUTE
// physical end-of-tape (ERROR_EOM_OVERFLOW) is reached; see below).
//
//
// ***********************
// ** IMPORTANT NOTE! **
// ***********************
//
// This is NOT actually an "error"!!!
//
//
// When this "error" occurs, your "ReadFile" and/or "WriteFile" call
// returns 'FALSE' even though ALL of your requested data was actually
// written successfully!! This can be verified by checking to ensure
// the returned "number of bytes written" actually matches the amount
// you asked to be written. If they're the same (and they ALWAYS will
// be for this specific "error" code), then it means this "error" is
// NOT actually an error at all, but rather just a WARNING instead!!
// (Had it been an actual i/o error, the error code would have been
// some other DIFFERENT error code value instead!!)
//
//
// ***********************
// ** ALSO IMPORTANT! **
// ***********************
// See also:
//
// http://fixunix.com/storage/205622-bug-dlttape-sys-no-eot-warning.html
//
// for ADDITIONAL IMPORTANT INFORMATION regarding always having to
// specifically request that this "error" code be returned to you:
//
// Even when a drive reports it does not support the setting of the
// the 'EOTWarningZoneSize' value (i.e. the FeaturesLow field of the
// GetTapeParameters call returns '0' for TAPE_DRIVE_SET_EOT_WZ_SIZE
// field), it may still be possible for "ERROR_END_OF_MEDIA" warnings
// to be generated anyway by simply calling SetTapeParameters with a
// non-zero 'EOTWarningZoneSize' value anyway.
//
// The reason for this is because some drives may not allow CHANGING
// the value (thus the reason for it reporting that setting the value
// is not supported), but may nevertheless still support the ENABLING
// of their own hard-coded internal value. That is to say, while the
// size of the warning zone may not be modifiable (as it may be hard-
// coded and thus unchangeable), the drive may still have the ability
// to REPORT reaching the EOT Warning zone IF SPECIFICALLY REQUESTED
// TO DO SO! (which is presumably what requesting a non-zero Warning
// Zone size would end up doing: i.e. even though such calls APPEAR
// to fail, they actually DO succeed in accomplishing SOMETHING, just
// not what you originally/specifically requested).
//
// Thus calling SetTapeParameters with a non-zero 'EOTWarningZoneSize'
// value might very well succeed anyway even though GetTapeParameters
// reports that doing so is not supported, and by so doing, may cause
// the drive to begin reporting of "ERROR_END_OF_MEDIA" (whereas not
// attempting to do so would end up leaving the drive in its default
// non-reporting mode. That is to say, you should ALWAYS try setting
// a non-zero 'EOTWarningZoneSize' value, ignoring any "unsupported"
// error code that may be returned from such a call.)
case ERROR_EOM_OVERFLOW:
*pStat |= GMT_EOT (0xFFFFFFFF);
errno = EIO;
break;
// "ERROR_EOM_OVERFLOW"
//
// Msg: "Physical end of tape encountered."
//
// This error code means that the actual physical end-of-media has been
// reached, and no more data can be written to the tape. This includes
// tapemarks as well.
//
// ***********************
// ** IMPORTANT NOTE! **
// ***********************
//
// This is a HARD (UNRECOVERABLE) error!!
//
// To be programmatically informed of when you are coming close to the
// physical end-of-the-tape (such that you could be assured room still
// remained to write logical end-of-volume labels for example), simply
// call SetTapeParameters with a non-zero 'EOTWarningZoneSize' value
// and treat any "ERROR_END_OF_MEDIA" "errors" received when writing
// as warnings instead. (See prior discussion of "ERROR_END_OF_MEDIA"
// return code further above)
case ERROR_NO_DATA_DETECTED:
*pStat |= GMT_EOD (0xFFFFFFFF);
errno = EIO;
break;
case ERROR_FILEMARK_DETECTED:
*pStat |= GMT_EOF (0xFFFFFFFF);
errno = EIO;
break;
case ERROR_SETMARK_DETECTED:
*pStat |= GMT_SM (0xFFFFFFFF);
errno = EIO;
break;
case ERROR_NOT_READY:
*pStat |= GMT_DR_OPEN (0xFFFFFFFF);
errno = ENOMEDIUM;
break;
case ERROR_NO_MEDIA_IN_DRIVE:
*pStat |= GMT_DR_OPEN (0xFFFFFFFF);
errno = ENOMEDIUM;
break;
case ERROR_WRITE_PROTECT:
*pStat |= GMT_WR_PROT (0xFFFFFFFF);
errno = EROFS;
break;
}
return errno;
}
uint32_t generic_tape_device::status_dev()
{
struct mtget mt_stat;
uint32_t status = 0;
if (state & (ST_EOT | ST_WEOT)) {
status |= BMT_EOD;
Pmsg0(-20, " EOD");
}
if (state & ST_EOF) {
status |= BMT_EOF;
Pmsg0(-20, " EOF");
}
status |= BMT_TAPE;
Pmsg0(-20,_(" Bareos status:"));
Pmsg2(-20,_(" file=%d block=%d\n"), file, block_num);
if (d_ioctl(m_fd, MTIOCGET, (char *)&mt_stat) < 0) {
berrno be;
dev_errno = errno;
Mmsg2(errmsg, _("ioctl MTIOCGET error on %s. ERR=%s.\n"),
print_name(), be.bstrerror());
return 0;
}
Pmsg0(-20, _(" Device status:"));
#if defined(HAVE_LINUX_OS)
if (GMT_EOF(mt_stat.mt_gstat)) {
status |= BMT_EOF;
Pmsg0(-20, " EOF");
}
if (GMT_BOT(mt_stat.mt_gstat)) {
status |= BMT_BOT;
Pmsg0(-20, " BOT");
}
if (GMT_EOT(mt_stat.mt_gstat)) {
status |= BMT_EOT;
Pmsg0(-20, " EOT");
}
if (GMT_SM(mt_stat.mt_gstat)) {
status |= BMT_SM;
Pmsg0(-20, " SM");
}
if (GMT_EOD(mt_stat.mt_gstat)) {
status |= BMT_EOD;
Pmsg0(-20, " EOD");
}
if (GMT_WR_PROT(mt_stat.mt_gstat)) {
status |= BMT_WR_PROT;
Pmsg0(-20, " WR_PROT");
}
if (GMT_ONLINE(mt_stat.mt_gstat)) {
status |= BMT_ONLINE;
Pmsg0(-20, " ONLINE");
}
if (GMT_DR_OPEN(mt_stat.mt_gstat)) {
status |= BMT_DR_OPEN;
Pmsg0(-20, " DR_OPEN");
}
if (GMT_IM_REP_EN(mt_stat.mt_gstat)) {
status |= BMT_IM_REP_EN;
Pmsg0(-20, " IM_REP_EN");
}
#elif defined(HAVE_WIN32)
if (GMT_EOF(mt_stat.mt_gstat)) {
status |= BMT_EOF;
Pmsg0(-20, " EOF");
}
if (GMT_BOT(mt_stat.mt_gstat)) {
status |= BMT_BOT;
Pmsg0(-20, " BOT");
}
if (GMT_EOT(mt_stat.mt_gstat)) {
status |= BMT_EOT;
Pmsg0(-20, " EOT");
}
if (GMT_EOD(mt_stat.mt_gstat)) {
status |= BMT_EOD;
Pmsg0(-20, " EOD");
}
if (GMT_WR_PROT(mt_stat.mt_gstat)) {
status |= BMT_WR_PROT;
Pmsg0(-20, " WR_PROT");
}
if (GMT_ONLINE(mt_stat.mt_gstat)) {
status |= BMT_ONLINE;
Pmsg0(-20, " ONLINE");
}
if (GMT_DR_OPEN(mt_stat.mt_gstat)) {
status |= BMT_DR_OPEN;
Pmsg0(-20, " DR_OPEN");
}
if (GMT_IM_REP_EN(mt_stat.mt_gstat)) {
status |= BMT_IM_REP_EN;
Pmsg0(-20, " IM_REP_EN");
}
#endif /* HAVE_LINUX_OS || HAVE_WIN32 */
if (has_cap(CAP_MTIOCGET)) {
Pmsg2(-20, _(" file=%d block=%d\n"), mt_stat.mt_fileno, mt_stat.mt_blkno);
} else {
Pmsg2(-20, _(" file=%d block=%d\n"), -1, -1);
}
return status;
}
