X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fsrc%2Fstored%2Fmount.c;h=c7f5eda63a7ae0dca63113acb17af017c86fd955;hb=e62fc0c4690a5729c4e663688458c40c61e73910;hp=0cf2ce80a4ab0515071fb2f4f2ae7138ba53b8b5;hpb=e8dc8f1ab3d2c376b2dd469a7ca0da4fa946242c;p=bacula%2Fbacula diff --git a/bacula/src/stored/mount.c b/bacula/src/stored/mount.c index 0cf2ce80a4..c7f5eda63a 100644 --- a/bacula/src/stored/mount.c +++ b/bacula/src/stored/mount.c @@ -1,3 +1,30 @@ +/* + Bacula® - The Network Backup Solution + + Copyright (C) 2002-2008 Free Software Foundation Europe e.V. + + The main author of Bacula is Kern Sibbald, with contributions from + many others, a complete list can be found in the file AUTHORS. + This program is Free Software; you can redistribute it and/or + modify it under the terms of version two of the GNU General Public + License as published by the Free Software Foundation and included + in the file LICENSE. + + This program 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., 51 Franklin Street, Fifth Floor, Boston, MA + 02110-1301, USA. + + Bacula® is a registered trademark of John Walker. + The licensor of Bacula is the Free Software Foundation Europe + (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich, + Switzerland, email:ftf@fsfeurope.org. +*/ /* * * Routines for handling mounting tapes for reading and for @@ -7,30 +34,25 @@ * * Version $Id$ */ -/* - Copyright (C) 2000-2005 Kern Sibbald - - This program 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 (at your option) any later version. - - This program 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. - - */ #include "bacula.h" /* pull in global headers */ #include "stored.h" /* pull in Storage Deamon headers */ +enum { + try_next_vol = 1, + try_read_vol, + try_error, + try_default +}; + +enum { + check_next_vol = 1, + check_ok, + check_read_vol, + check_error +}; + /* * If release is set, we rewind the current volume, * which we no longer want, and ask the user (console) @@ -43,66 +65,66 @@ * impossible to get the requested Volume. * */ -bool mount_next_write_volume(DCR *dcr, bool release) +bool DCR::mount_next_write_volume() { int retry = 0; bool ask = false, recycle, autochanger; - int vol_label_status; - DEVICE *dev = dcr->dev; - JCR *jcr = dcr->jcr; - DEV_BLOCK *block = dcr->block; + bool do_find = true; + int mode; + DCR *dcr = this; - Dmsg0(100, "Enter mount_next_volume()\n"); + Dmsg2(150, "Enter mount_next_volume(release=%d) dev=%s\n", dev->must_unload(), + dev->print_name()); init_device_wait_timers(dcr); - + lock_volumes(); + /* * Attempt to mount the next volume. If something non-fatal goes * wrong, we come back here to re-try (new op messages, re-read * Volume, ...) */ mount_next_vol: + Dmsg1(150, "mount_next_vol retry=%d\n", retry); /* Ignore retry if this is poll request */ if (!dev->poll && retry++ > 4) { /* Last ditch effort before giving up, force operator to respond */ - dcr->VolCatInfo.Slot = 0; - if (!dir_ask_sysop_to_mount_volume(dcr)) { + VolCatInfo.Slot = 0; + unlock_volumes(); + if (!dir_ask_sysop_to_mount_volume(dcr, ST_APPEND)) { Jmsg(jcr, M_FATAL, 0, _("Too many errors trying to mount device %s.\n"), - dev->print_name()); - return false; + dev->print_name()); + goto no_lock_bail_out; } + lock_volumes(); + Dmsg1(150, "Continue after dir_ask_sysop_to_mount. must_load=%d\n", dev->must_load()); } if (job_canceled(jcr)) { Jmsg(jcr, M_FATAL, 0, _("Job %d canceled.\n"), jcr->JobId); - return false; + goto bail_out; } recycle = false; - if (release) { - Dmsg0(100, "mount_next_volume release=1\n"); - release_volume(dcr); - ask = true; /* ask operator to mount tape */ + + if (retry >= 2) { + do_find = false; } - /* - * Get Director's idea of what tape we should have mounted. - * in dcr->VolCatInfo - */ - Dmsg0(200, "Before dir_find_next_appendable_volume.\n"); - while (!dir_find_next_appendable_volume(dcr)) { - Dmsg0(200, "not dir_find_next\n"); - if (!dir_ask_sysop_to_create_appendable_volume(dcr)) { - return false; - } - Dmsg0(200, "Again dir_find_next_append...\n"); + if (dev->must_unload()) { + ask = true; /* ask operator to mount tape */ + do_find = true; /* re-find a volume after unload */ + } + do_swapping(true /*writing*/); + + if (do_find && !find_a_volume()) { + goto no_lock_bail_out; } + if (job_canceled(jcr)) { - return false; + goto bail_out; } - Dmsg3(100, "After find_next_append. Vol=%s Slot=%d Parts=%d\n", - dcr->VolCatInfo.VolCatName, dcr->VolCatInfo.Slot, dcr->VolCatInfo.VolCatParts); + Dmsg3(150, "After find_next_append. Vol=%s Slot=%d Parts=%d\n", + VolCatInfo.VolCatName, VolCatInfo.Slot, VolCatInfo.VolCatParts); - dev->num_parts = dcr->VolCatInfo.VolCatParts; - /* * Get next volume and ready it for append * This code ensures that the device is ready for @@ -113,344 +135,666 @@ mount_next_vol: * file. If it is a tape, we check the volume name * and move the tape to the end of data. * - * It assumes that the device is not already in use! - * */ - if (autoload_device(dcr, 1, NULL) > 0) { + if (autoload_device(dcr, true/*writing*/, NULL) > 0) { autochanger = true; ask = false; } else { autochanger = false; - dcr->VolCatInfo.Slot = 0; + VolCatInfo.Slot = 0; + ask = true; } - Dmsg1(100, "autoload_dev returns %d\n", autochanger); + Dmsg1(150, "autoload_dev returns %d\n", autochanger); /* * If we autochanged to correct Volume or (we have not just - * released the Volume AND we can automount) we go ahead - * and read the label. If there is no tape in the drive, - * we will err, recurse and ask the operator the next time. + * released the Volume AND we can automount) we go ahead + * and read the label. If there is no tape in the drive, + * we will fail, recurse and ask the operator the next time. */ - if (!release && dev_is_tape(dev) && dev_cap(dev, CAP_AUTOMOUNT)) { + if (!dev->must_unload() && dev->is_tape() && dev->has_cap(CAP_AUTOMOUNT)) { + Dmsg0(250, "(1)Ask=0\n"); ask = false; /* don't ask SYSOP this time */ } /* Don't ask if not removable */ - if (!dev_cap(dev, CAP_REM)) { + if (!dev->is_removable()) { + Dmsg0(250, "(2)Ask=0\n"); ask = false; } - Dmsg2(100, "Ask=%d autochanger=%d\n", ask, autochanger); - release = true; /* release next time if we "recurse" */ + Dmsg2(250, "Ask=%d autochanger=%d\n", ask, autochanger); - if (ask && !dir_ask_sysop_to_mount_volume(dcr)) { - Dmsg0(100, "Error return ask_sysop ...\n"); - return false; /* error return */ + if (ask) { + unlock_volumes(); + if (!dir_ask_sysop_to_mount_volume(dcr, ST_APPEND)) { + Dmsg0(150, "Error return ask_sysop ...\n"); + goto no_lock_bail_out; + } + lock_volumes(); } if (job_canceled(jcr)) { - return false; + goto bail_out; } - Dmsg1(100, "want vol=%s\n", dcr->VolumeName); + Dmsg3(150, "want vol=%s devvol=%s dev=%s\n", VolumeName, + dev->VolHdr.VolumeName, dev->print_name()); - if (dev->poll && dev_cap(dev, CAP_CLOSEONPOLL)) { - force_close_dev(dev); + if (dev->poll && dev->has_cap(CAP_CLOSEONPOLL)) { + dev->close(); } /* Ensure the device is open */ - /* If we have a dvd that requires mount, we first want to guess - * which Volume is loaded, so we continue (if the wrong device is - * loaded, open_device just below would fail. + if (dev->has_cap(CAP_STREAM)) { + mode = OPEN_WRITE_ONLY; + } else { + mode = OPEN_READ_WRITE; + } + /* Try autolabel if enabled */ + if (dev->open(dcr, mode) < 0) { + try_autolabel(false); /* try to create a new volume label */ + } + while (dev->open(dcr, mode) < 0) { + Dmsg1(150, "open_device failed: ERR=%s\n", dev->bstrerror()); + if ((dev->is_file() && dev->is_removable()) || dev->is_dvd()) { + bool ok = true; + Dmsg0(150, "call scan_dir_for_vol\n"); + if (dev->is_dvd()) { + if (!dev->mount(0)) { + ok = false; + } + } + if (ok && dev->scan_dir_for_volume(dcr)) { + if (dev->open(dcr, mode) >= 0) { + break; /* got a valid volume */ + } + } + if (ok && dev->is_dvd()) { + dev->unmount(0); + } + } + if (try_autolabel(false) == try_read_vol) { + break; /* created a new volume label */ + } + Dmsg0(50, "set_unload\n"); + dev->set_unload(); /* force ask sysop */ + ask = true; + Dmsg0(150, "goto mount_next_vol\n"); + goto mount_next_vol; + } + + /* + * Now check the volume label to make sure we have the right tape mounted */ - if (!dev->is_dvd()) { - if (!open_device(dcr)) { - if (dev->poll) { - goto mount_next_vol; - } else { - return false; - } +read_volume: + switch (check_volume_label(ask, autochanger)) { + case check_next_vol: + Dmsg0(50, "set_unload\n"); + dev->set_unload(); /* want a different Volume */ + Dmsg0(150, "goto mount_next_vol\n"); + goto mount_next_vol; + case check_read_vol: + goto read_volume; + case check_error: + goto bail_out; + case check_ok: + break; + } + + /* + * See if we have a fresh tape or a tape with data. + * + * Note, if the LabelType is PRE_LABEL, it was labeled + * but never written. If so, rewrite the label but set as + * VOL_LABEL. We rewind and return the label (reconstructed) + * in the block so that in the case of a new tape, data can + * be appended just after the block label. If we are writing + * a second volume, the calling routine will write the label + * before writing the overflow block. + * + * If the tape is marked as Recycle, we rewrite the label. + */ + recycle = strcmp(dev->VolCatInfo.VolCatStatus, "Recycle") == 0; + if (dev->VolHdr.LabelType == PRE_LABEL || recycle) { + if (!rewrite_volume_label(dcr, recycle)) { + mark_volume_in_error(); + goto mount_next_vol; } } else { /* - * Just copy the VolCatName in the device resource - * (usually done by open_dev). - * It is necessary so we can open the real files later. + * OK, at this point, we have a valid Bacula label, but + * we need to position to the end of the volume, since we are + * just now putting it into append mode. */ - bstrncpy(dev->VolCatInfo.VolCatName, dcr->VolCatInfo.VolCatName, sizeof(dev->VolCatInfo.VolCatName)); + Dmsg0(200, "Device previously written, moving to end of data\n"); + Jmsg(jcr, M_INFO, 0, _("Volume \"%s\" previously written, moving to end of data.\n"), + VolumeName); + + if (!dev->eod(dcr)) { + Jmsg(jcr, M_ERROR, 0, _("Unable to position to end of data on device %s: ERR=%s\n"), + dev->print_name(), dev->bstrerror()); + mark_volume_in_error(); + goto mount_next_vol; + } + if (!is_eod_valid()) { + Dmsg0(150, "goto mount_next_vol\n"); + goto mount_next_vol; + } + + dev->VolCatInfo.VolCatMounts++; /* Update mounts */ + Dmsg1(150, "update volinfo mounts=%d\n", dev->VolCatInfo.VolCatMounts); + if (!dir_update_volume_info(dcr, false, false)) { + goto bail_out; + } + + /* Return an empty block */ + empty_block(block); /* we used it for reading so set for write */ } + dev->set_append(); + Dmsg1(150, "set APPEND, normal return from mount_next_write_volume. dev=%s\n", + dev->print_name()); - /* - * Now make sure we have the right tape mounted - */ -read_volume: + unlock_volumes(); + return true; + +bail_out: + unlock_volumes(); + +no_lock_bail_out: + return false; +} + +/* + * This routine is meant to be called once the first pass + * to ensure that we have a candidate volume to mount. + * Otherwise, we ask the sysop to created one. + */ +bool DCR::find_a_volume() +{ + DCR *dcr = this; + if (!is_suitable_volume_mounted()) { + bool have_vol = false; + /* Do we have a candidate volume? */ + if (dev->vol) { + bstrncpy(VolumeName, dev->vol->vol_name, sizeof(VolumeName)); + have_vol = dir_get_volume_info(this, GET_VOL_INFO_FOR_WRITE); + } + /* + * Get Director's idea of what tape we should have mounted. + * in dcr->VolCatInfo + */ + if (!have_vol) { + Dmsg0(200, "Before dir_find_next_appendable_volume.\n"); + while (!dir_find_next_appendable_volume(dcr)) { + Dmsg0(200, "not dir_find_next\n"); + if (job_canceled(jcr)) { + unlock_volumes(); + return false; + } + unlock_volumes(); + if (!dir_ask_sysop_to_create_appendable_volume(dcr)) { + return false; + } + lock_volumes(); + Dmsg0(150, "Again dir_find_next_append...\n"); + } + } + } + return true; +} + +int DCR::check_volume_label(bool &ask, bool &autochanger) +{ + int vol_label_status; /* * If we are writing to a stream device, ASSUME the volume label * is correct. */ - if (dev_cap(dev, CAP_STREAM)) { + if (dev->has_cap(CAP_STREAM)) { vol_label_status = VOL_OK; - create_volume_label(dev, dcr->VolumeName, "Default"); + create_volume_label(dev, VolumeName, "Default", false /* not DVD */); dev->VolHdr.LabelType = PRE_LABEL; - } else if (dev->is_dvd()) { - vol_label_status = read_dev_volume_label_guess(dcr, 1); } else { - vol_label_status = read_dev_volume_label(dcr); + vol_label_status = read_dev_volume_label(this); } if (job_canceled(jcr)) { - return false; + goto check_bail_out; } - Dmsg2(100, "dirVol=%s dirStat=%s\n", dcr->VolumeName, - dcr->VolCatInfo.VolCatStatus); + Dmsg2(150, "Want dirVol=%s dirStat=%s\n", VolumeName, + VolCatInfo.VolCatStatus); /* * At this point, dev->VolCatInfo has what is in the drive, if anything, - * and dcr->VolCatInfo has what the Director wants. + * and dcr->VolCatInfo has what the Director wants. */ switch (vol_label_status) { case VOL_OK: - Dmsg1(100, "Vol OK name=%s\n", dcr->VolumeName); - memcpy(&dev->VolCatInfo, &dcr->VolCatInfo, sizeof(dev->VolCatInfo)); - recycle = strcmp(dev->VolCatInfo.VolCatStatus, "Recycle") == 0; - break; /* got a Volume */ + Dmsg1(150, "Vol OK name=%s\n", dev->VolHdr.VolumeName); + dev->VolCatInfo = VolCatInfo; /* structure assignment */ + break; /* got a Volume */ case VOL_NAME_ERROR: - VOLUME_CAT_INFO VolCatInfo; + VOLUME_CAT_INFO dcrVolCatInfo, devVolCatInfo; + char saveVolumeName[MAX_NAME_LENGTH]; + + Dmsg2(150, "Vol NAME Error Have=%s, want=%s\n", dev->VolHdr.VolumeName, VolumeName); + if (dev->is_volume_to_unload()) { + ask = true; + goto check_next_volume; + } /* If not removable, Volume is broken */ - if (!dev_cap(dev, CAP_REM)) { + if (!dev->is_removable()) { Jmsg(jcr, M_WARNING, 0, _("Volume \"%s\" not on device %s.\n"), - dcr->VolumeName, dev->print_name()); - mark_volume_in_error(dcr); - goto mount_next_vol; + VolumeName, dev->print_name()); + mark_volume_in_error(); + goto check_next_volume; } - Dmsg1(100, "Vol NAME Error Name=%s\n", dcr->VolumeName); - /* If polling and got a previous bad name, ignore it */ - if (dev->poll && strcmp(dev->BadVolName, dev->VolHdr.VolName) == 0) { - ask = true; - Dmsg1(200, "Vol Name error supress due to poll. Name=%s\n", - dcr->VolumeName); - goto mount_next_vol; - } /* * OK, we got a different volume mounted. First save the - * requested Volume info (jcr) structure, then query if + * requested Volume info (dcr) structure, then query if * this volume is really OK. If not, put back the desired - * volume name and continue. + * volume name, mark it not in changer and continue. */ - memcpy(&VolCatInfo, &dcr->VolCatInfo, sizeof(VolCatInfo)); + dcrVolCatInfo = VolCatInfo; /* structure assignment */ + devVolCatInfo = dev->VolCatInfo; /* structure assignment */ /* Check if this is a valid Volume in the pool */ - bstrncpy(dcr->VolumeName, dev->VolHdr.VolName, sizeof(dcr->VolumeName)); - if (!dir_get_volume_info(dcr, GET_VOL_INFO_FOR_WRITE)) { - bstrncpy(dev->BadVolName, dev->VolHdr.VolName, sizeof(dev->BadVolName)); + bstrncpy(saveVolumeName, VolumeName, sizeof(saveVolumeName)); + bstrncpy(VolumeName, dev->VolHdr.VolumeName, sizeof(VolumeName)); + if (!dir_get_volume_info(this, GET_VOL_INFO_FOR_WRITE)) { + POOL_MEM vol_info_msg; + pm_strcpy(vol_info_msg, jcr->dir_bsock->msg); /* save error message */ + /* Restore desired volume name, note device info out of sync */ + /* This gets the info regardless of the Pool */ + bstrncpy(VolumeName, dev->VolHdr.VolumeName, sizeof(VolumeName)); + if (autochanger && !dir_get_volume_info(this, GET_VOL_INFO_FOR_READ)) { + /* + * If we get here, we know we cannot write on the Volume, + * and we know that we cannot read it either, so it + * is not in the autochanger. + */ + mark_volume_not_inchanger(); + } + dev->VolCatInfo = devVolCatInfo; /* structure assignment */ + dev->set_unload(); /* unload this volume */ Jmsg(jcr, M_WARNING, 0, _("Director wanted Volume \"%s\".\n" " Current Volume \"%s\" not acceptable because:\n" " %s"), - VolCatInfo.VolCatName, dev->VolHdr.VolName, - jcr->dir_bsock->msg); - /* Restore desired volume name, note device info out of sync */ - memcpy(&dcr->VolCatInfo, &VolCatInfo, sizeof(dcr->VolCatInfo)); - ask = true; - goto mount_next_vol; + dcrVolCatInfo.VolCatName, dev->VolHdr.VolumeName, + vol_info_msg.c_str()); + ask = true; + /* Restore saved DCR before continuing */ + bstrncpy(VolumeName, saveVolumeName, sizeof(VolumeName)); + VolCatInfo = dcrVolCatInfo; /* structure assignment */ + goto check_next_volume; } - Dmsg1(100, "want new name=%s\n", dcr->VolumeName); - memcpy(&dev->VolCatInfo, &dcr->VolCatInfo, sizeof(dev->VolCatInfo)); - recycle = strcmp(dev->VolCatInfo.VolCatStatus, "Recycle") == 0; - break; /* got a Volume */ + /* + * This was not the volume we expected, but it is OK with + * the Director, so use it. + */ + Dmsg1(150, "Got new Volume name=%s\n", VolumeName); + dev->VolCatInfo = VolCatInfo; /* structure assignment */ + Dmsg1(100, "Call reserve_volume=%s\n", dev->VolHdr.VolumeName); + if (reserve_volume(this, dev->VolHdr.VolumeName) == NULL) { + Jmsg2(jcr, M_WARNING, 0, _("Could not reserve volume %s on %s\n"), + dev->VolHdr.VolumeName, dev->print_name()); + ask = true; + goto check_next_volume; + } + break; /* got a Volume */ /* * At this point, we assume we have a blank tape mounted. */ - case VOL_NO_LABEL: case VOL_IO_ERROR: - /* - * If permitted, we label the device, make sure we can do - * it by checking that the VolCatBytes is zero => not labeled, - * once the Volume is labeled we don't want to label another - * blank tape with the same name. For disk, we go ahead and - * label it anyway, because the OS insures that there is only - * one Volume with that name. - * As noted above, at this point dcr->VolCatInfo has what - * the Director wants and dev->VolCatInfo has info on the - * previous tape (or nothing). - */ - if (dev_cap(dev, CAP_LABEL) && (dcr->VolCatInfo.VolCatBytes == 0 || - (!dev->is_tape() && strcmp(dcr->VolCatInfo.VolCatStatus, - "Recycle") == 0))) { - Dmsg0(100, "Create volume label\n"); - /* Create a new Volume label and write it to the device */ - if (!write_new_volume_label_to_dev(dcr, dcr->VolumeName, - dcr->pool_name)) { - Dmsg0(100, "!write_vol_label\n"); - goto mount_next_vol; - } - Dmsg0(100, "dir_update_vol_info. Set Append\n"); - /* Copy Director's info into the device info */ - memcpy(&dev->VolCatInfo, &dcr->VolCatInfo, sizeof(dev->VolCatInfo)); - if (!dir_update_volume_info(dcr, true)) { /* indicate tape labeled */ - return false; - } - Jmsg(jcr, M_INFO, 0, _("Labeled new Volume \"%s\" on device %s.\n"), - dcr->VolumeName, dev->print_name()); - goto read_volume; /* read label we just wrote */ + if (dev->is_dvd()) { + Jmsg(jcr, M_FATAL, 0, "%s", jcr->errmsg); + mark_volume_in_error(); + goto check_bail_out; /* we could not write on DVD */ } - /* If not removable, Volume is broken */ - if (!dev_cap(dev, CAP_REM)) { - Jmsg(jcr, M_WARNING, 0, _("Volume \"%s\" not on device %s.\n"), - dcr->VolumeName, dev->print_name()); - mark_volume_in_error(dcr); - if (autochanger) { - mark_volume_not_inchanger(dcr); - } - goto mount_next_vol; + /* Fall through wanted */ + case VOL_NO_LABEL: + switch (try_autolabel(true)) { + case try_next_vol: + goto check_next_volume; + case try_read_vol: + goto check_read_volume; + case try_error: + goto check_bail_out; + case try_default: + break; } + /* NOTE! Fall-through wanted. */ case VOL_NO_MEDIA: default: + Dmsg0(200, "VOL_NO_MEDIA or default.\n"); /* Send error message */ if (!dev->poll) { - Jmsg(jcr, M_WARNING, 0, "%s", jcr->errmsg); } else { Dmsg1(200, "Msg suppressed by poll: %s\n", jcr->errmsg); } ask = true; /* Needed, so the medium can be changed */ - if (dev_cap(dev, CAP_REQMOUNT)) { - close_dev(dev); + if (dev->requires_mount()) { + dev->close(); } - goto mount_next_vol; + goto check_next_volume; + } + return check_ok; + +check_next_volume: + return check_next_vol; + +check_bail_out: + return check_error; + +check_read_volume: + return check_read_vol; + +} + + +bool DCR::is_suitable_volume_mounted() +{ + /* Volume mounted? */ + if (dev->VolHdr.VolumeName[0] == 0 || dev->swap_dev || dev->must_unload()) { + return false; /* no */ } + bstrncpy(VolumeName, dev->VolHdr.VolumeName, sizeof(VolumeName)); + return dir_get_volume_info(this, GET_VOL_INFO_FOR_WRITE); +} +void DCR::do_swapping(bool is_writing) +{ + if (dev->must_unload()) { + Dmsg1(100, "must_unload release %s\n", dev->print_name()); + release_volume(); + } /* - * See if we have a fresh tape or a tape with data. - * - * Note, if the LabelType is PRE_LABEL, it was labeled - * but never written. If so, rewrite the label but set as - * VOL_LABEL. We rewind and return the label (reconstructed) - * in the block so that in the case of a new tape, data can - * be appended just after the block label. If we are writing - * a second volume, the calling routine will write the label - * before writing the overflow block. - * - * If the tape is marked as Recycle, we rewrite the label. + * See if we are asked to swap the Volume from another device + * if so, unload the other device here, and attach the + * volume to our drive. */ - if (dev->VolHdr.LabelType == PRE_LABEL || recycle) { - if (!rewrite_volume_label(dcr, recycle)) { - goto mount_next_vol; + if (dev->swap_dev) { + if (dev->swap_dev->must_unload()) { + if (dev->vol) { + dev->swap_dev->set_slot(dev->vol->get_slot()); + } + Dmsg2(100, "Swap unloading slot=%d %s\n", dev->swap_dev->get_slot(), + dev->swap_dev->print_name()); + unload_dev(this, dev->swap_dev); } - } else { + if (dev->vol) { + dev->vol->clear_swapping(); + Dmsg1(100, "=== set in_use vol=%s\n", dev->vol->vol_name); + dev->vol->set_in_use(); + dev->VolHdr.VolumeName[0] = 0; /* don't yet have right Volume */ + } + dev->swap_dev = NULL; + } + if (dev->must_load()) { + Dmsg1(100, "Must load %s\n", dev->print_name()); + if (autoload_device(this, is_writing, NULL) > 0) { + dev->clear_load(); + } + } +} + + +/* + * Check if the current position on the volume corresponds to + * what is in the catalog. + */ +bool DCR::is_eod_valid() +{ + if (dev->is_dvd()) { + char ed1[50], ed2[50]; + if (dev->VolCatInfo.VolCatBytes == dev->part_start + dev->part_size) { + Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\"" + " part=%d size=%s\n"), VolumeName, + dev->part, edit_uint64(dev->VolCatInfo.VolCatBytes,ed1)); + } else { + Jmsg(jcr, M_ERROR, 0, _("Bacula cannot write on DVD Volume \"%s\" because: " + "The sizes do not match! Volume=%s Catalog=%s\n"), + VolumeName, + edit_uint64(dev->part_start + dev->part_size, ed1), + edit_uint64(dev->VolCatInfo.VolCatBytes, ed2)); + mark_volume_in_error(); + return false; + } + } else if (dev->is_tape()) { /* - * OK, at this point, we have a valid Bacula label, but - * we need to position to the end of the volume, since we are - * just now putting it into append mode. + * Check if we are positioned on the tape at the same place + * that the database says we should be. */ - Dmsg0(200, "Device previously written, moving to end of data\n"); - Jmsg(jcr, M_INFO, 0, _("Volume \"%s\" previously written, moving to end of data.\n"), - dcr->VolumeName); - if (!eod_dev(dev)) { - Jmsg(jcr, M_ERROR, 0, _("Unable to position to end of data on device %s: ERR=%s\n"), - dev->print_name(), strerror_dev(dev)); - mark_volume_in_error(dcr); - goto mount_next_vol; - } - /* *****FIXME**** we should do some checking for files too */ - if (dev_is_tape(dev)) { - /* - * Check if we are positioned on the tape at the same place - * that the database says we should be. - */ - if (dev->VolCatInfo.VolCatFiles == dev_file(dev)) { - Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\" at file=%d.\n"), - dcr->VolumeName, dev_file(dev)); - } else { - Jmsg(jcr, M_ERROR, 0, _("I cannot write on Volume \"%s\" because:\n" -"The number of files mismatch! Volume=%u Catalog=%u\n"), - dcr->VolumeName, dev_file(dev), dev->VolCatInfo.VolCatFiles); - mark_volume_in_error(dcr); - goto mount_next_vol; - } + if (dev->VolCatInfo.VolCatFiles == dev->get_file()) { + Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\" at file=%d.\n"), + VolumeName, dev->get_file()); + } else { + Jmsg(jcr, M_ERROR, 0, _("Bacula cannot write on tape Volume \"%s\" because:\n" + "The number of files mismatch! Volume=%u Catalog=%u\n"), + VolumeName, dev->get_file(), dev->VolCatInfo.VolCatFiles); + mark_volume_in_error(); + return false; } - dev->VolCatInfo.VolCatMounts++; /* Update mounts */ - Dmsg1(100, "update volinfo mounts=%d\n", dev->VolCatInfo.VolCatMounts); - if (!dir_update_volume_info(dcr, false)) { - return false; + } else if (dev->is_file()) { + char ed1[50], ed2[50]; + boffset_t pos; + pos = dev->lseek(this, (boffset_t)0, SEEK_END); + if (dev->VolCatInfo.VolCatBytes == (uint64_t)pos) { + Jmsg(jcr, M_INFO, 0, _("Ready to append to end of Volume \"%s\"" + " size=%s\n"), VolumeName, + edit_uint64(dev->VolCatInfo.VolCatBytes, ed1)); + } else { + Jmsg(jcr, M_ERROR, 0, _("Bacula cannot write on disk Volume \"%s\" because: " + "The sizes do not match! Volume=%s Catalog=%s\n"), + VolumeName, + edit_uint64(pos, ed1), + edit_uint64(dev->VolCatInfo.VolCatBytes, ed2)); + mark_volume_in_error(); + return false; } - /* Return an empty block */ - empty_block(block); /* we used it for reading so set for write */ } - dev->set_append(); - Dmsg0(100, "set APPEND, normal return from read_dev_for_append\n"); return true; } +/* + * If permitted, we label the device, make sure we can do + * it by checking that the VolCatBytes is zero => not labeled, + * once the Volume is labeled we don't want to label another + * blank tape with the same name. For disk, we go ahead and + * label it anyway, because the OS insures that there is only + * one Volume with that name. + * As noted above, at this point dcr->VolCatInfo has what + * the Director wants and dev->VolCatInfo has info on the + * previous tape (or nothing). + * + * Return codes are: + * try_next_vol label failed, look for another volume + * try_read_vol labeled volume, now re-read the label + * try_error hard error (catalog update) + * try_default I couldn't do anything + */ +int DCR::try_autolabel(bool opened) +{ + DCR *dcr = this; + + if (dev->poll && !dev->is_tape()) { + return try_default; /* if polling, don't try to create new labels */ + } + /* For a tape require it to be opened and read before labeling */ + if (!opened && dev->is_tape()) { + return try_default; + } + if (dev->has_cap(CAP_LABEL) && (VolCatInfo.VolCatBytes == 0 || + (!dev->is_tape() && strcmp(VolCatInfo.VolCatStatus, + "Recycle") == 0))) { + Dmsg0(150, "Create volume label\n"); + /* Create a new Volume label and write it to the device */ + if (!write_new_volume_label_to_dev(dcr, VolumeName, + pool_name, false, /* no relabel */ false /* defer DVD label */)) { + Dmsg2(150, "write_vol_label failed. vol=%s, pool=%s\n", + VolumeName, pool_name); + if (opened) { + mark_volume_in_error(); + } + return try_next_vol; + } + Dmsg0(150, "dir_update_vol_info. Set Append\n"); + /* Copy Director's info into the device info */ + dev->VolCatInfo = VolCatInfo; /* structure assignment */ + if (!dir_update_volume_info(dcr, true, true)) { /* indicate tape labeled */ + return try_error; + } + Jmsg(dcr->jcr, M_INFO, 0, _("Labeled new Volume \"%s\" on device %s.\n"), + VolumeName, dev->print_name()); + return try_read_vol; /* read label we just wrote */ + } + if (!dev->has_cap(CAP_LABEL) && VolCatInfo.VolCatBytes == 0) { + Jmsg(jcr, M_WARNING, 0, _("Device %s not configured to autolabel Volumes.\n"), + dev->print_name()); + } + /* If not removable, Volume is broken */ + if (!dev->is_removable()) { + Jmsg(jcr, M_WARNING, 0, _("Volume \"%s\" not on device %s.\n"), + VolumeName, dev->print_name()); + mark_volume_in_error(); + return try_next_vol; + } + return try_default; +} + /* * Mark volume in error in catalog */ -void mark_volume_in_error(DCR *dcr) +void DCR::mark_volume_in_error() { - DEVICE *dev = dcr->dev; - Jmsg(dcr->jcr, M_INFO, 0, _("Marking Volume \"%s\" in Error in Catalog.\n"), - dcr->VolumeName); + Jmsg(jcr, M_INFO, 0, _("Marking Volume \"%s\" in Error in Catalog.\n"), + VolumeName); + dev->VolCatInfo = VolCatInfo; /* structure assignment */ bstrncpy(dev->VolCatInfo.VolCatStatus, "Error", sizeof(dev->VolCatInfo.VolCatStatus)); - Dmsg0(100, "dir_update_vol_info. Set Error.\n"); - dir_update_volume_info(dcr, false); + Dmsg0(150, "dir_update_vol_info. Set Error.\n"); + dir_update_volume_info(this, false, false); + volume_unused(this); + Dmsg0(50, "set_unload\n"); + dev->set_unload(); /* must get a new volume */ } /* - * If we are reading, we come here at the end of the tape - * and see if there are more volumes to be mounted. + * The Volume is not in the correct slot, so mark this + * Volume as not being in the Changer. */ -bool mount_next_read_volume(DCR *dcr) +void DCR::mark_volume_not_inchanger() { - DEVICE *dev = dcr->dev; - JCR *jcr = dcr->jcr; - Dmsg2(90, "NumVolumes=%d CurVolume=%d\n", jcr->NumVolumes, jcr->CurVolume); - /* - * End Of Tape -- mount next Volume (if another specified) - */ - if (jcr->NumVolumes > 1 && jcr->CurVolume < jcr->NumVolumes) { - close_dev(dev); - dev->clear_read(); - if (!acquire_device_for_read(dcr)) { - Jmsg2(jcr, M_FATAL, 0, "Cannot open Dev=%s, Vol=%s\n", dev->print_name(), - dcr->VolumeName); - return false; - } - return true; /* next volume mounted */ - } - Dmsg0(90, "End of Device reached.\n"); - return false; + Jmsg(jcr, M_ERROR, 0, _("Autochanger Volume \"%s\" not found in slot %d.\n" +" Setting InChanger to zero in catalog.\n"), + VolCatInfo.VolCatName, VolCatInfo.Slot); + dev->VolCatInfo = VolCatInfo; /* structure assignment */ + VolCatInfo.InChanger = false; + dev->VolCatInfo.InChanger = false; + Dmsg0(400, "update vol info in mount\n"); + dir_update_volume_info(this, true, false); /* set new status */ } /* * Either because we are going to hang a new volume, or because * of explicit user request, we release the current volume. */ -void release_volume(DCR *dcr) +void DCR::release_volume() { - JCR *jcr = dcr->jcr; - DEVICE *dev = dcr->dev; - if (dcr->WroteVol) { - Jmsg0(jcr, M_ERROR, 0, "Hey!!!!! WroteVol non-zero !!!!!\n"); - Dmsg0(190, "Hey!!!!! WroteVol non-zero !!!!!\n"); + unload_autochanger(this, -1); + + if (WroteVol) { + Jmsg0(jcr, M_ERROR, 0, _("Hey!!!!! WroteVol non-zero !!!!!\n")); + Pmsg0(190, "Hey!!!!! WroteVol non-zero !!!!!\n"); } /* * First erase all memory of the current volume */ + free_volume(dev); dev->block_num = dev->file = 0; dev->EndBlock = dev->EndFile = 0; memset(&dev->VolCatInfo, 0, sizeof(dev->VolCatInfo)); - memset(&dcr->VolCatInfo, 0, sizeof(dcr->VolCatInfo)); - memset(&dev->VolHdr, 0, sizeof(dev->VolHdr)); + dev->clear_volhdr(); /* Force re-read of label */ - dev->state &= ~(ST_LABEL|ST_READ|ST_APPEND); + dev->clear_labeled(); + dev->clear_read(); + dev->clear_append(); dev->label_type = B_BACULA_LABEL; - dcr->VolumeName[0] = 0; + VolumeName[0] = 0; - if (dev->is_open() && (!dev->is_tape() || !dev_cap(dev, CAP_ALWAYSOPEN))) { - offline_or_rewind_dev(dev); - close_dev(dev); + if (dev->is_open() && (!dev->is_tape() || !dev->has_cap(CAP_ALWAYSOPEN))) { + dev->close(); } /* If we have not closed the device, then at least rewind the tape */ if (dev->is_open()) { - offline_or_rewind_dev(dev); + dev->offline_or_rewind(); + } +// Dmsg0(50, "set_unload\n"); +// dev->set_unload(); + Dmsg0(190, "release_volume\n"); +} + +/* + * Insanity check + * + * Check to see if the tape position as defined by the OS is + * the same as our concept. If it is not, + * it means the user has probably manually rewound the tape. + * Note, we check only if num_writers == 0, but this code will + * also work fine for any number of writers. If num_writers > 0, + * we probably should cancel all jobs using this device, or + * perhaps even abort the SD, or at a minimum, mark the tape + * in error. Another strategy with num_writers == 0, would be + * to rewind the tape and do a new eod() request. + */ +bool DCR::is_tape_position_ok() +{ + if (dev->is_tape() && dev->num_writers == 0) { + int32_t file = dev->get_os_tape_file(); + if (file >= 0 && file != (int32_t)dev->get_file()) { + Jmsg(jcr, M_ERROR, 0, _("Invalid tape position on volume \"%s\"" + " on device %s. Expected %d, got %d\n"), + dev->VolHdr.VolumeName, dev->print_name(), dev->get_file(), file); + /* + * If the current file is greater than zero, it means we probably + * have some bad count of EOF marks, so mark tape in error. Otherwise + * the operator might have moved the tape, so we just release it + * and try again. + */ + if (file > 0) { + mark_volume_in_error(); + } + release_volume(); + return false; + } } - Dmsg0(190, "===== release_volume ---"); + return true; +} + + +/* + * If we are reading, we come here at the end of the tape + * and see if there are more volumes to be mounted. + */ +bool mount_next_read_volume(DCR *dcr) +{ + DEVICE *dev = dcr->dev; + JCR *jcr = dcr->jcr; + Dmsg2(90, "NumReadVolumes=%d CurReadVolume=%d\n", jcr->NumReadVolumes, jcr->CurReadVolume); + + volume_unused(dcr); /* release current volume */ + /* + * End Of Tape -- mount next Volume (if another specified) + */ + if (jcr->NumReadVolumes > 1 && jcr->CurReadVolume < jcr->NumReadVolumes) { + dev->close(); + if (!acquire_device_for_read(dcr)) { + Jmsg2(jcr, M_FATAL, 0, _("Cannot open Dev=%s, Vol=%s\n"), dev->print_name(), + dcr->VolumeName); + return false; + } + return true; /* next volume mounted */ + } + Dmsg0(90, "End of Device reached.\n"); + return false; }