*
*/
/*
- Copyright (C) 2000-2003 Kern Sibbald and John Walker
+ Copyright (C) 2000-2004 Kern Sibbald and John Walker
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
* Dump the block header, then walk through
* the block printing out the record headers.
*/
-void dump_block(DEV_BLOCK *b, char *msg)
+void dump_block(DEV_BLOCK *b, const char *msg)
{
ser_declare;
char *p;
block->dev = dev;
block->block_len = block->buf_len; /* default block size */
block->buf = get_memory(block->buf_len);
- if (block->buf == NULL) {
- Mmsg0(&dev->errmsg, _("Unable to malloc block buffer.\n"));
- Emsg0(M_FATAL, 0, dev->errmsg);
- return NULL;
- }
empty_block(block);
block->BlockVer = BLOCK_VER; /* default write version */
Dmsg1(90, "Returning new block=%x\n", block);
return block;
}
+
+/*
+ * Duplicate an existing block (eblock)
+ */
+DEV_BLOCK *dup_block(DEV_BLOCK *eblock)
+{
+ DEV_BLOCK *block = (DEV_BLOCK *)get_memory(sizeof(DEV_BLOCK));
+ int buf_len = sizeof_pool_memory(eblock->buf);
+
+ memcpy(block, eblock, sizeof(DEV_BLOCK));
+ block->buf = get_memory(buf_len);
+ memcpy(block->buf, eblock->buf, buf_len);
+ return block;
+}
+
+
+/*
+ * Only the first block checksum error was reported.
+ * If there are more, report it now.
+ */
+void print_block_read_errors(JCR *jcr, DEV_BLOCK *block)
+{
+ if (block->read_errors > 1) {
+ Jmsg(jcr, M_ERROR, 0, _("%d block read errors not printed.\n"),
+ block->read_errors);
+ }
+}
+
/*
* Free block
*/
* in the buffer should have already been reserved by
* init_block.
*/
-static void ser_block_header(DEV_BLOCK *block)
+void ser_block_header(DEV_BLOCK *block)
{
ser_declare;
uint32_t CheckSum = 0;
}
/*
- * Unserialized the block header for reading block.
+ * Unserialize the block header for reading block.
* This includes setting all the buffer pointers correctly.
*
- * Returns: 0 on failure (not a block)
- * 1 on success
+ * Returns: false on failure (not a block)
+ * true on success
*/
-static int unser_block_header(DEVICE *dev, DEV_BLOCK *block)
+static bool unser_block_header(JCR *jcr, DEVICE *dev, DEV_BLOCK *block)
{
ser_declare;
char Id[BLKHDR_ID_LENGTH+1];
block->BlockVer = 1;
block->bufp = block->buf + bhl;
if (strncmp(Id, BLKHDR1_ID, BLKHDR_ID_LENGTH) != 0) {
- Mmsg2(&dev->errmsg, _("Buffer ID error. Wanted: %s, got %s. Buffer discarded.\n"),
- BLKHDR1_ID, Id);
- Emsg0(M_ERROR, 0, dev->errmsg);
- return 0;
+ dev->dev_errno = EIO;
+ Mmsg4(dev->errmsg, _("Volume data error at %u:%u! Wanted ID: \"%s\", got \"%s\". Buffer discarded.\n"),
+ dev->file, dev->block_num, BLKHDR1_ID, Id);
+ if (block->read_errors == 0 || verbose >= 2) {
+ Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
+ }
+ block->read_errors++;
+ return false;
}
} else if (Id[3] == '2') {
unser_uint32(block->VolSessionId);
block->BlockVer = 2;
block->bufp = block->buf + bhl;
if (strncmp(Id, BLKHDR2_ID, BLKHDR_ID_LENGTH) != 0) {
- Mmsg2(&dev->errmsg, _("Buffer ID error. Wanted: %s, got %s. Buffer discarded.\n"),
- BLKHDR2_ID, Id);
- Emsg0(M_ERROR, 0, dev->errmsg);
- return 0;
+ dev->dev_errno = EIO;
+ Mmsg4(dev->errmsg, _("Volume data error at %u:%u! Wanted ID: \"%s\", got \"%s\". Buffer discarded.\n"),
+ dev->file, dev->block_num, BLKHDR2_ID, Id);
+ if (block->read_errors == 0 || verbose >= 2) {
+ Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
+ }
+ block->read_errors++;
+ return false;
}
} else {
- Mmsg1(&dev->errmsg, _("Expected block-id BB01 or BB02, got %s. Buffer discarded.\n"), Id);
- Emsg0(M_ERROR, 0, dev->errmsg);
- return 0;
+ dev->dev_errno = EIO;
+ Mmsg4(dev->errmsg, _("Volume data error at %u:%u! Wanted ID: \"%s\", got \"%s\". Buffer discarded.\n"),
+ dev->file, dev->block_num, BLKHDR2_ID, Id);
+ if (block->read_errors == 0 || verbose >= 2) {
+ Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
+ }
+ block->read_errors++;
+ unser_uint32(block->VolSessionId);
+ unser_uint32(block->VolSessionTime);
+ return false;
}
/* Sanity check */
if (block_len > MAX_BLOCK_LENGTH) {
- Mmsg1(&dev->errmsg, _("Block length %u is insane (too large), probably due to a bad archive.\n"),
- block_len);
- Emsg0(M_ERROR, 0, dev->errmsg);
- return 0;
+ dev->dev_errno = EIO;
+ Mmsg3(dev->errmsg, _("Volume data error at %u:%u! Block length %u is insane (too large), probably due to a bad archive.\n"),
+ dev->file, dev->block_num, block_len);
+ if (block->read_errors == 0 || verbose >= 2) {
+ Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
+ }
+ block->read_errors++;
+ return false;
}
Dmsg1(190, "unser_block_header block_len=%d\n", block_len);
BlockCheckSum = bcrc32((uint8_t *)block->buf+BLKHDR_CS_LENGTH,
block_len-BLKHDR_CS_LENGTH);
if (BlockCheckSum != CheckSum) {
- Dmsg2(00, "Block checksum mismatch: calc=%x blk=%x\n", BlockCheckSum,
- CheckSum);
- Mmsg3(&dev->errmsg, _("Block checksum mismatch in block %u: calc=%x blk=%x\n"),
- (unsigned)BlockNumber, BlockCheckSum, CheckSum);
- return 0;
+ dev->dev_errno = EIO;
+ Mmsg5(dev->errmsg, _("Volume data error at %u:%u! Block checksum mismatch in block %u: calc=%x blk=%x\n"),
+ dev->file, dev->block_num, (unsigned)BlockNumber, BlockCheckSum, CheckSum);
+ if (block->read_errors == 0 || verbose >= 2) {
+ Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
+ }
+ block->read_errors++;
+ if (!forge_on) {
+ return false;
+ }
}
}
- return 1;
+ return true;
}
/*
* Write a block to the device, with locking and unlocking
*
- * Returns: 1 on success
- * : 0 on failure
+ * Returns: true on success
+ * : false on failure
*
*/
-int write_block_to_device(JCR *jcr, DEVICE *dev, DEV_BLOCK *block)
+bool write_block_to_device(DCR *dcr)
{
- int stat = 1;
- lock_device(dev);
+ bool stat = true;
+ DEVICE *dev = dcr->dev;
+ JCR *jcr = dcr->jcr;
+
+ if (dcr->spooling) {
+ stat = write_block_to_spool_file(dcr);
+ return stat;
+ }
+
+ if (!dcr->dev_locked) {
+ lock_device(dev);
+ }
/*
* If a new volume has been mounted since our last write
* Create a JobMedia record for the previous volume written,
* and set new parameters to write this volume
+ * The same applies for if we are in a new file.
*/
- if (jcr->NewVol) {
+ if (dcr->NewVol || dcr->NewFile) {
/* Create a jobmedia record for this job */
- if (!dir_create_jobmedia_record(jcr)) {
- Jmsg(jcr, M_ERROR, 0, _("Could not create JobMedia record for Volume=\"%s\" Job=%s\n"),
- jcr->VolCatInfo.VolCatName, jcr->Job);
- set_new_volume_parameters(jcr, dev);
- unlock_device(dev);
- return 0;
+ if (!dir_create_jobmedia_record(dcr)) {
+ dev->dev_errno = EIO;
+ Jmsg(jcr, M_FATAL, 0, _("Could not create JobMedia record for Volume=\"%s\" Job=%s\n"),
+ dcr->VolCatInfo.VolCatName, jcr->Job);
+ set_new_volume_parameters(dcr);
+ stat = false;
+ goto bail_out;
+ }
+ if (dcr->NewVol) {
+ /* Note, setting a new volume also handles any pending new file */
+ set_new_volume_parameters(dcr);
+ dcr->NewFile = false; /* this handled for new file too */
+ } else {
+ set_new_file_parameters(dcr);
}
- set_new_volume_parameters(jcr, dev);
}
- if (!write_block_to_dev(jcr, dev, block)) {
- stat = fixup_device_block_write_error(jcr, dev, block);
+ if (!write_block_to_dev(dcr)) {
+ if (job_canceled(jcr)) {
+ stat = 0;
+ } else {
+ stat = fixup_device_block_write_error(dcr);
+ }
}
- unlock_device(dev);
+bail_out:
+ if (!dcr->dev_locked) {
+ unlock_device(dev);
+ }
return stat;
}
/*
* Write a block to the device
*
- * Returns: 1 on success or EOT
- * 0 on hard error
+ * Returns: true on success or EOT
+ * false on hard error
*/
-int write_block_to_dev(JCR *jcr, DEVICE *dev, DEV_BLOCK *block)
+bool write_block_to_dev(DCR *dcr)
{
ssize_t stat = 0;
uint32_t wlen; /* length to write */
int hit_max1, hit_max2;
- int ok;
+ bool ok = true;
+ DEVICE *dev = dcr->dev;
+ JCR *jcr = dcr->jcr;
+ DEV_BLOCK *block = dcr->block;
#ifdef NO_TAPE_WRITE_TEST
empty_block(block);
- return 1;
+ return true;
#endif
ASSERT(block->binbuf == ((uint32_t) (block->bufp - block->buf)));
/* dump_block(block, "before write"); */
if (dev->state & ST_WEOT) {
Dmsg0(100, "return write_block_to_dev with ST_WEOT\n");
+ dev->dev_errno = ENOSPC;
Jmsg(jcr, M_FATAL, 0, _("Cannot write block. Device at EOM.\n"));
- return 0;
+ return false;
}
wlen = block->binbuf;
if (wlen <= WRITE_BLKHDR_LENGTH) { /* Does block have data in it? */
Dmsg0(100, "return write_block_to_dev no data to write\n");
- return 1;
+ return true;
}
/*
* Clear to the end of the buffer if it is not full,
/* Adjust write size to min/max for tapes only */
if (dev->state & ST_TAPE) {
- if (wlen < dev->min_block_size) {
- wlen = ((dev->min_block_size + TAPE_BSIZE - 1) / TAPE_BSIZE) * TAPE_BSIZE;
- }
/* check for fixed block size */
if (dev->min_block_size == dev->max_block_size) {
wlen = block->buf_len; /* fixed block size already rounded */
+ /* Check for min block size */
+ } else if (wlen < dev->min_block_size) {
+ wlen = ((dev->min_block_size + TAPE_BSIZE - 1) / TAPE_BSIZE) * TAPE_BSIZE;
+ /* Ensure size is rounded */
+ } else {
+ wlen = ((wlen + TAPE_BSIZE - 1) / TAPE_BSIZE) * TAPE_BSIZE;
}
}
if (wlen-blen > 0) {
max_cap = dev->VolCatInfo.VolCatMaxBytes;
}
Jmsg(jcr, M_INFO, 0, _("User defined maximum volume capacity %s exceeded on device %s.\n"),
- edit_uint64(max_cap, ed1), dev->dev_name);
+ edit_uint64_with_commas(max_cap, ed1), dev->dev_name);
block->write_failed = true;
- weof_dev(dev, 1); /* end the tape */
- weof_dev(dev, 1); /* write second eof */
+ if (weof_dev(dev, 1) != 0) { /* end tape */
+ Jmsg(jcr, M_FATAL, 0, "%s", dev->errmsg);
+ dev->VolCatInfo.VolCatErrors++;
+ }
+ /* Don't do update after second EOF or file count will be wrong */
+ Dmsg0(100, "dir_update_volume_info\n");
+ dev->VolCatInfo.VolCatFiles = dev->file;
+ dir_update_volume_info(dcr, false);
+ if (dev_cap(dev, CAP_TWOEOF) && weof_dev(dev, 1) != 0) { /* write eof */
+ /* This may not be fatal since we already wrote an EOF */
+ Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
+ dev->VolCatInfo.VolCatErrors++;
+ }
dev->state |= (ST_EOF | ST_EOT | ST_WEOT);
- return 0;
+ dev->dev_errno = ENOSPC;
+ return false;
}
/* Limit maximum File size on volume to user specified value */
- if (dev->state & ST_TAPE) {
- if ((dev->max_file_size > 0) &&
- (dev->file_addr+block->binbuf) >= dev->max_file_size) {
- if (weof_dev(dev, 1) != 0) { /* write eof */
- Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
- /* Plunge on anyway -- if tape is bad we will die on write */
+ if ((dev->max_file_size > 0) &&
+ (dev->file_size+block->binbuf) >= dev->max_file_size) {
+
+ if (dev_state(dev, ST_TAPE) && weof_dev(dev, 1) != 0) { /* write eof */
+ /* Write EOF */
+ Jmsg(jcr, M_FATAL, 0, "%s", dev->errmsg);
+ block->write_failed = true;
+ dev->VolCatInfo.VolCatErrors++;
+ dev->state |= (ST_EOF | ST_EOT | ST_WEOT);
+ Dmsg0(100, "dir_update_volume_info\n");
+ dev->VolCatInfo.VolCatFiles = dev->file;
+ dir_update_volume_info(dcr, false);
+ dev->dev_errno = ENOSPC;
+ return false;
+ }
+
+ /* Create a JobMedia record so restore can seek */
+ Dmsg0(100, "dir_update_volume_info\n");
+ dev->VolCatInfo.VolCatFiles = dev->file;
+ dir_update_volume_info(dcr, false);
+ if (!dir_create_jobmedia_record(dcr)) {
+ dev->dev_errno = EIO;
+ Jmsg(jcr, M_ERROR, 0, _("Could not create JobMedia record for Volume=\"%s\" Job=%s\n"),
+ dcr->VolCatInfo.VolCatName, jcr->Job);
+ if (!forge_on) {
+ return false;
+ }
+ }
+ dev->file_size = 0; /* reset file size */
+ /*
+ * Walk through all attached jcrs indicating the file has changed
+ */
+ Dmsg1(100, "Walk attached jcrs. Volume=%s\n", dev->VolCatInfo.VolCatName);
+#ifdef xxx
+ for (JCR *mjcr=NULL; (mjcr=next_attached_jcr(dev, mjcr)); ) {
+ if (mjcr->JobId == 0) {
+ continue; /* ignore console */
+ }
+ mjcr->dcr->NewFile = true; /* set reminder to do set_new_file_params */
+ }
+#endif
+ /*
+ * Walk through all attached dcrs setting flag to call
+ * set_new_file_parameters() when that dcr is next used.
+ */
+ DCR *mdcr;
+ foreach_dlist(mdcr, dev->attached_dcrs) {
+ if (mdcr->jcr->JobId == 0) {
+ continue;
}
+ mdcr->NewFile = true; /* set reminder to do set_new_file_params */
}
+ /* Set new file/block parameters for current dcr */
+ set_new_file_parameters(dcr);
}
dev->VolCatInfo.VolCatWrites++;
- Dmsg1(300, "Write block of %u bytes\n", wlen);
- if ((uint32_t)(stat=write(dev->fd, block->buf, (size_t)wlen)) != wlen) {
- /* We should check for errno == ENOSPC, BUT many
- * devices simply report EIO when the volume is full.
+ Dmsg1(200, "Write block of %u bytes\n", wlen);
+#ifdef DEBUG_BLOCK_ZEROING
+ uint32_t *bp = (uint32_t *)block->buf;
+ if (bp[0] == 0 && bp[1] == 0 && bp[2] == 0 && block->buf[12] == 0) {
+ Jmsg0(jcr, M_ABORT, 0, "Write block header zeroed.\n");
+ }
+#endif
+
+ stat = write(dev->fd, block->buf, (size_t)wlen);
+
+#ifdef DEBUG_BLOCK_ZEROING
+ if (bp[0] == 0 && bp[1] == 0 && bp[2] == 0 && block->buf[12] == 0) {
+ Jmsg0(jcr, M_ABORT, 0, "Write block header zeroed.\n");
+ }
+#endif
+
+ if (stat != (ssize_t)wlen) {
+ /* Some devices simply report EIO when the volume is full.
* With a little more thought we may be able to check
* capacity and distinguish real errors and EOT
* conditions. In any case, we probably want to
* simulate an End of Medium.
*/
if (stat == -1) {
+ berrno be;
/* I have added the ifdefing here because it appears on
* FreeBSD where MTIOCERRSTAT is defined, this not only
* clears the error but clears the residual unwritten
* systems (FreeBSD like), do the clrerror() only after
* the weof_dev() call.
*/
-#ifndef MTIOCERRSTAT
clrerror_dev(dev, -1);
-#else
- dev->dev_errno = errno; /* save errno */
-#endif
if (dev->dev_errno == 0) {
dev->dev_errno = ENOSPC; /* out of space */
}
- Jmsg(jcr, M_ERROR, 0, _("Write error on device %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
+ if (dev->dev_errno != ENOSPC) {
+ Jmsg4(jcr, M_ERROR, 0, _("Write error at %u:%u on device %s. ERR=%s.\n"),
+ dev->file, dev->block_num, dev->dev_name, be.strerror());
+ }
} else {
dev->dev_errno = ENOSPC; /* out of space */
- Jmsg3(jcr, M_INFO, 0, _("End of medium on device %s. Write of %u bytes got %d.\n"),
- dev->dev_name, wlen, stat);
}
-
- Dmsg4(10, "=== Write error. size=%u rtn=%d errno=%d: ERR=%s\n",
- wlen, stat, dev->dev_errno, strerror(dev->dev_errno));
+ if (dev->dev_errno == ENOSPC) {
+ Jmsg(jcr, M_INFO, 0, _("End of Volume \"%s\" at %u:%u on device %s. Write of %u bytes got %d.\n"),
+ dev->VolCatInfo.VolCatName,
+ dev->file, dev->block_num, dev->dev_name, wlen, stat);
+ }
+ Dmsg6(100, "=== Write error. size=%u rtn=%d dev_blk=%d blk_blk=%d errno=%d: ERR=%s\n",
+ wlen, stat, dev->block_num, block->BlockNumber, dev->dev_errno, strerror(dev->dev_errno));
block->write_failed = true;
- weof_dev(dev, 1); /* end the tape */
- weof_dev(dev, 1); /* write second eof */
-#ifdef MTIOCERRSTAT
- clrerror_dev(dev, -1);
-#endif
+ if (weof_dev(dev, 1) != 0) { /* end the tape */
+ dev->VolCatInfo.VolCatErrors++;
+ Jmsg(jcr, M_FATAL, 0, "%s", dev->errmsg);
+ ok = false;
+ }
+ Dmsg0(100, "dir_update_volume_info\n");
+ dev->VolCatInfo.VolCatFiles = dev->file;
+ dir_update_volume_info(dcr, false);
+ if (ok && dev_cap(dev, CAP_TWOEOF) && weof_dev(dev, 1) != 0) { /* end the tape */
+ dev->VolCatInfo.VolCatErrors++;
+ /* This may not be fatal since we already wrote an EOF */
+ Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
+ }
dev->state |= (ST_EOF | ST_EOT | ST_WEOT);
- ok = TRUE;
#define CHECK_LAST_BLOCK
#ifdef CHECK_LAST_BLOCK
/*
* If the device is a tape and it supports backspace record,
- * we backspace over two eof marks and over the last record,
+ * we backspace over one or two eof marks depending on
+ * how many we just wrote, then over the last record,
* then re-read it and verify that the block number is
* correct.
*/
- if (dev->state & ST_TAPE && dev_cap(dev, CAP_BSR)) {
-
+ if (ok && (dev->state & ST_TAPE) && dev_cap(dev, CAP_BSR)) {
/* Now back up over what we wrote and read the last block */
- if (bsf_dev(dev, 1) != 0 || bsf_dev(dev, 1) != 0) {
- ok = FALSE;
+ if (!bsf_dev(dev, 1)) {
+ ok = false;
+ Jmsg(jcr, M_ERROR, 0, _("Backspace file at EOT failed. ERR=%s\n"), strerror(dev->dev_errno));
+ }
+ if (ok && dev_cap(dev, CAP_TWOEOF) && !bsf_dev(dev, 1)) {
+ ok = false;
Jmsg(jcr, M_ERROR, 0, _("Backspace file at EOT failed. ERR=%s\n"), strerror(dev->dev_errno));
}
/* Backspace over record */
- if (ok && bsr_dev(dev, 1) != 0) {
- ok = FALSE;
+ if (ok && !bsr_dev(dev, 1)) {
+ ok = false;
Jmsg(jcr, M_ERROR, 0, _("Backspace record at EOT failed. ERR=%s\n"), strerror(dev->dev_errno));
/*
* On FreeBSD systems, if the user got here, it is likely that his/her
if (ok) {
DEV_BLOCK *lblock = new_block(dev);
/* Note, this can destroy dev->errmsg */
- if (!read_block_from_dev(jcr, dev, lblock, NO_BLOCK_NUMBER_CHECK)) {
+ dcr->block = lblock;
+ if (!read_block_from_dev(dcr, NO_BLOCK_NUMBER_CHECK)) {
Jmsg(jcr, M_ERROR, 0, _("Re-read last block at EOT failed. ERR=%s"), dev->errmsg);
} else {
if (lblock->BlockNumber+1 == block->BlockNumber) {
}
}
free_block(lblock);
+ dcr->block = block;
}
}
#endif
- return 0;
+ return false;
}
/* We successfully wrote the block, now do housekeeping */
dev->VolCatInfo.VolCatBytes += block->binbuf;
dev->VolCatInfo.VolCatBlocks++;
- dev->file_addr += wlen;
dev->EndBlock = dev->block_num;
dev->EndFile = dev->file;
dev->block_num++;
block->BlockNumber++;
- /* Update jcr values */
- if (dev->state & ST_TAPE) {
- jcr->EndBlock = dev->EndBlock;
- jcr->EndFile = dev->EndFile;
+ /* Update dcr values */
+ if (dev_state(dev, ST_TAPE)) {
+ dcr->EndBlock = dev->EndBlock;
+ dcr->EndFile = dev->EndFile;
} else {
- jcr->EndBlock = (uint32_t)dev->file_addr;
- jcr->EndFile = (uint32_t)(dev->file_addr >> 32);
+ /* Save address of start of block just written */
+ dcr->EndBlock = (uint32_t)dev->file_addr;
+ dcr->EndFile = (uint32_t)(dev->file_addr >> 32);
}
- if (jcr->VolFirstIndex == 0 && block->FirstIndex > 0) {
- jcr->VolFirstIndex = block->FirstIndex;
+ if (dcr->VolFirstIndex == 0 && block->FirstIndex > 0) {
+ dcr->VolFirstIndex = block->FirstIndex;
}
if (block->LastIndex > 0) {
- jcr->VolLastIndex = block->LastIndex;
+ dcr->VolLastIndex = block->LastIndex;
}
- jcr->WroteVol = true;
+ dcr->WroteVol = true;
+ dev->file_addr += wlen; /* update file address */
+ dev->file_size += wlen;
Dmsg2(190, "write_block: wrote block %d bytes=%d\n", dev->block_num,
wlen);
empty_block(block);
- return 1;
+ return true;
}
/*
* Read block with locking
*
*/
-int read_block_from_device(JCR *jcr, DEVICE *dev, DEV_BLOCK *block, bool check_block_numbers)
+bool read_block_from_device(DCR *dcr, bool check_block_numbers)
{
- int stat;
+ bool stat;
+ DEVICE *dev = dcr->dev;
Dmsg0(90, "Enter read_block_from_device\n");
lock_device(dev);
- stat = read_block_from_dev(jcr, dev, block, check_block_numbers);
+ stat = read_block_from_dev(dcr, check_block_numbers);
unlock_device(dev);
Dmsg0(90, "Leave read_block_from_device\n");
return stat;
* the block header. For a file, the block may be partially
* or completely in the current buffer.
*/
-int read_block_from_dev(JCR *jcr, DEVICE *dev, DEV_BLOCK *block, bool check_block_numbers)
+bool read_block_from_dev(DCR *dcr, bool check_block_numbers)
{
ssize_t stat;
int looping;
uint32_t BlockNumber;
- int retry = 0;
+ int retry;
+ JCR *jcr = dcr->jcr;
+ DEVICE *dev = dcr->dev;
+ DEV_BLOCK *block = dcr->block;
+ if (dev_state(dev, ST_EOT)) {
+ return false;
+ }
looping = 0;
Dmsg1(100, "Full read() in read_block_from_device() len=%d\n",
block->buf_len);
reread:
if (looping > 1) {
- Mmsg1(&dev->errmsg, _("Block buffer size looping problem on device %s\n"),
+ dev->dev_errno = EIO;
+ Mmsg1(dev->errmsg, _("Block buffer size looping problem on device %s\n"),
dev->dev_name);
Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
block->read_len = 0;
- return 0;
+ return false;
}
+ retry = 0;
do {
+// uint32_t *bp = (uint32_t *)block->buf;
+// Dmsg3(000, "Read %p %u at %llu\n", block->buf, block->buf_len, lseek(dev->fd, 0, SEEK_CUR));
+
stat = read(dev->fd, block->buf, (size_t)block->buf_len);
+
+// Dmsg8(000, "stat=%d Csum=%u blen=%u bnum=%u %c%c%c%c\n",stat, bp[0],bp[1],bp[2],
+// block->buf[12],block->buf[13],block->buf[14],block->buf[15]);
+
if (retry == 1) {
dev->VolCatInfo.VolCatErrors++;
}
} while (stat == -1 && (errno == EINTR || errno == EIO) && retry++ < 11);
if (stat < 0) {
- Dmsg1(90, "Read device got: ERR=%s\n", strerror(errno));
clrerror_dev(dev, -1);
+ Dmsg1(90, "Read device got: ERR=%s\n", strerror(errno));
block->read_len = 0;
- Mmsg2(&dev->errmsg, _("Read error on device %s. ERR=%s.\n"),
- dev->dev_name, strerror(dev->dev_errno));
+ Mmsg4(dev->errmsg, _("Read error at file:blk %u:%u on device %s. ERR=%s.\n"),
+ dev->file, dev->block_num, dev->dev_name, strerror(dev->dev_errno));
Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
if (dev->state & ST_EOF) { /* EOF just seen? */
dev->state |= ST_EOT; /* yes, error => EOT */
}
- return 0;
+ return false;
}
Dmsg1(90, "Read device got %d bytes\n", stat);
if (stat == 0) { /* Got EOF ! */
dev->block_num = block->read_len = 0;
- Mmsg1(&dev->errmsg, _("Read zero bytes on device %s.\n"), dev->dev_name);
+ Mmsg3(dev->errmsg, _("Read zero bytes at %u:%u on device %s.\n"),
+ dev->file, dev->block_num, dev->dev_name);
if (dev->state & ST_EOF) { /* EOF already read? */
dev->state |= ST_EOT; /* yes, 2 EOFs => EOT */
block->read_len = 0;
dev->file++; /* increment file */
dev->state |= ST_EOF; /* set EOF read */
block->read_len = 0;
- return 0; /* return eof */
+ return false; /* return eof */
}
/* Continue here for successful read */
block->read_len = stat; /* save length read */
if (block->read_len < BLKHDR2_LENGTH) {
- Mmsg2(&dev->errmsg, _("Very short block of %d bytes on device %s discarded.\n"),
- block->read_len, dev->dev_name);
+ dev->dev_errno = EIO;
+ Mmsg4(dev->errmsg, _("Volume data error at %u:%u! Very short block of %d bytes on device %s discarded.\n"),
+ dev->file, dev->block_num, block->read_len, dev->dev_name);
Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
dev->state |= ST_SHORT; /* set short block */
block->read_len = block->binbuf = 0;
- return 0; /* return error */
+ return false; /* return error */
}
BlockNumber = block->BlockNumber + 1;
- if (!unser_block_header(dev, block)) {
- block->read_len = 0;
- return 0;
+ if (!unser_block_header(jcr, dev, block)) {
+ if (forge_on) {
+ dev->file_addr += block->read_len;
+ dev->file_size += block->read_len;
+ goto reread;
+ }
+ return false;
}
/*
* and go re-read.
*/
if (block->block_len > block->buf_len) {
- Mmsg2(&dev->errmsg, _("Block length %u is greater than buffer %u. Attempting recovery.\n"),
+ dev->dev_errno = EIO;
+ Mmsg2(dev->errmsg, _("Block length %u is greater than buffer %u. Attempting recovery.\n"),
block->block_len, block->buf_len);
Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
Pmsg1(000, "%s", dev->errmsg);
/* Attempt to reposition to re-read the block */
if (dev->state & ST_TAPE) {
Dmsg0(100, "Backspace record for reread.\n");
- if (bsr_dev(dev, 1) != 0) {
- Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
+ if (!bsr_dev(dev, 1)) {
+ Jmsg(jcr, M_ERROR, 0, "%s", strerror_dev(dev));
block->read_len = 0;
- return 0;
+ return false;
}
} else {
- Dmsg0(100, "Seek to beginning of block for reread.\n");
+ Dmsg0(200, "Seek to beginning of block for reread.\n");
off_t pos = lseek(dev->fd, (off_t)0, SEEK_CUR); /* get curr pos */
pos -= block->read_len;
lseek(dev->fd, pos, SEEK_SET);
+ dev->file_addr = pos;
}
- Mmsg1(&dev->errmsg, _("Setting block buffer size to %u bytes.\n"), block->block_len);
+ Mmsg1(dev->errmsg, _("Setting block buffer size to %u bytes.\n"), block->block_len);
Jmsg(jcr, M_INFO, 0, "%s", dev->errmsg);
Pmsg1(000, "%s", dev->errmsg);
/* Set new block length */
}
if (block->block_len > block->read_len) {
- Mmsg2(&dev->errmsg, _("Short block of %d bytes on device %s discarded.\n"),
- block->read_len, dev->dev_name);
+ dev->dev_errno = EIO;
+ Mmsg4(dev->errmsg, _("Volume data error at %u:%u! Short block of %d bytes on device %s discarded.\n"),
+ dev->file, dev->block_num, block->read_len, dev->dev_name);
Jmsg(jcr, M_ERROR, 0, "%s", dev->errmsg);
dev->state |= ST_SHORT; /* set short block */
block->read_len = block->binbuf = 0;
- return 0; /* return error */
+ return false; /* return error */
}
dev->state &= ~(ST_EOF|ST_SHORT); /* clear EOF and short block */
dev->VolCatInfo.VolCatBytes += block->block_len;
dev->VolCatInfo.VolCatBlocks++;
- dev->file_addr += block->block_len;
dev->EndBlock = dev->block_num;
dev->EndFile = dev->file;
dev->block_num++;
- /* Update jcr values */
+ /* Update dcr values */
if (dev->state & ST_TAPE) {
- jcr->EndBlock = dev->EndBlock;
- jcr->EndFile = dev->EndFile;
+ dcr->EndBlock = dev->EndBlock;
+ dcr->EndFile = dev->EndFile;
} else {
- jcr->EndBlock = (uint32_t)dev->file_addr;
- jcr->EndFile = (uint32_t)(dev->file_addr >> 32);
+ dcr->EndBlock = (uint32_t)dev->file_addr;
+ dcr->EndFile = (uint32_t)(dev->file_addr >> 32);
+ dev->block_num = dcr->EndBlock;
+ dev->file = dcr->EndFile;
}
+ dev->file_addr += block->block_len;
+ dev->file_size += block->block_len;
/*
* If we read a short block on disk,
off_t pos = lseek(dev->fd, (off_t)0, SEEK_CUR); /* get curr pos */
pos -= (block->read_len - block->block_len);
lseek(dev->fd, pos, SEEK_SET);
- Dmsg2(100, "Did lseek blk_size=%d rdlen=%d\n", block->block_len,
+ Dmsg2(200, "Did lseek blk_size=%d rdlen=%d\n", block->block_len,
block->read_len);
+ dev->file_addr = pos;
+ dev->file_size = pos;
}
Dmsg2(200, "Exit read_block read_len=%d block_len=%d\n",
block->read_len, block->block_len);
block->block_read = true;
- return 1;
+ return true;
}
projects / bacula / bacula / blobdiff