X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fsrc%2Fstored%2Fdev.c;h=459a9caa94de46d1d2fe53ed145d6ed2fe11993b;hb=90e04dd4f4c1bcad214b4ac5dd4ffbc55bbe0763;hp=c89b81007fe4e01a054b9a12272dfd480174e774;hpb=5af29c7ab1b7a594a3c56a121f7e3099c4e2bb4b;p=bacula%2Fbacula diff --git a/bacula/src/stored/dev.c b/bacula/src/stored/dev.c index c89b81007f..459a9caa94 100644 --- a/bacula/src/stored/dev.c +++ b/bacula/src/stored/dev.c @@ -29,19 +29,32 @@ * Version $Id$ */ /* - Copyright (C) 2000-2006 Kern Sibbald + Bacula® - The Network Backup Solution - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License - version 2 as amended with additional clauses defined in the - file LICENSE in the main source directory. + Copyright (C) 2000-2006 Free Software Foundation Europe e.V. - 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 - the file LICENSE for additional details. + 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 plus additions + that are listed 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. +*/ /* * Handling I/O errors and end of tape conditions are a bit tricky. @@ -49,7 +62,7 @@ * On either an I/O error or end of tape, * we will stop writing on the physical device (no I/O recovery is * attempted at least in this daemon). The state flag will be sent - * to include ST_EOT, which is ephimeral, and ST_WEOT, which is + * to include ST_EOT, which is ephemeral, and ST_WEOT, which is * persistent. Lots of routines clear ST_EOT, but ST_WEOT is * cleared only when the problem goes away. Now when ST_WEOT * is set all calls to write_block_to_device() call the fix_up @@ -80,7 +93,7 @@ #endif /* Forward referenced functions */ -void set_os_device_parameters(DEVICE *dev); +void set_os_device_parameters(DCR *dcr); static bool dev_get_os_pos(DEVICE *dev, struct mtget *mt_stat); static char *mode_to_str(int mode); @@ -118,7 +131,7 @@ init_dev(JCR *jcr, DEVRES *device) } else if (S_ISCHR(statp.st_mode)) { device->dev_type = B_TAPE_DEV; } else if (S_ISFIFO(statp.st_mode)) { - device->dev_type = B_FILE_DEV; + device->dev_type = B_FIFO_DEV; } else if (!(device->cap_bits & CAP_REQMOUNT)) { Jmsg2(jcr, M_ERROR, 0, _("%s is an unknown device type. Must be tape or directory\n" " or have RequiresMount=yes for DVD. st_mode=%x\n"), @@ -324,15 +337,19 @@ void DEVICE::open_tape_device(DCR *dcr, int omode) { file_size = 0; int timeout = max_open_wait; +#if !defined(HAVE_WIN32) struct mtop mt_com; utime_t start_time = time(NULL); +#endif Dmsg0(29, "Open dev: device is tape\n"); get_autochanger_loaded_slot(dcr); + openmode = omode; set_mode(omode); + if (timeout < 1) { timeout = 1; } @@ -390,7 +407,7 @@ void DEVICE::open_tape_device(DCR *dcr, int omode) } dev_errno = 0; lock_door(); - set_os_device_parameters(this); /* do system dependent stuff */ + set_os_device_parameters(dcr); /* do system dependent stuff */ break; /* Successfully opened and rewound */ } } @@ -445,7 +462,7 @@ void DEVICE::open_file_device(DCR *dcr, int omode) return; } - if (archive_name.c_str()[strlen(archive_name.c_str())-1] != '/') { + if (!IsPathSeparator(archive_name.c_str()[strlen(archive_name.c_str())-1])) { pm_strcat(archive_name, "/"); } pm_strcat(archive_name, VolCatInfo.VolCatName); @@ -489,8 +506,8 @@ void DEVICE::open_dvd_device(DCR *dcr, int omode) /* * Handle opening of DVD Volume */ - Dmsg3(29, "Enter: open_dvd_dev: %s dev=%s mode=%s\n", is_dvd()?"DVD":"disk", - archive_name.c_str(), mode_to_str(omode)); + Dmsg2(29, "Enter: open_dvd_dev: DVD vol=%s mode=%s\n", + &dcr->VolCatInfo, mode_to_str(omode)); /* * For a DVD we must always pull the state info from dcr->VolCatInfo @@ -527,6 +544,7 @@ void DEVICE::open_dvd_device(DCR *dcr, int omode) * OPEN_READ_ONLY as writing would be an error. */ Dmsg2(29, "open DVD part=%d num_dvd_parts=%d\n", part, num_dvd_parts); + /* Now find the name of the part that we want to access */ if (part <= num_dvd_parts) { omode = OPEN_READ_ONLY; make_mounted_dvd_filename(this, archive_name); @@ -544,7 +562,7 @@ void DEVICE::open_dvd_device(DCR *dcr, int omode) Dmsg3(99, "open_dvd_device: part=%d num_dvd_parts=%d, VolCatInfo.VolCatParts=%d\n", part, num_dvd_parts, dcr->VolCatInfo.VolCatParts); - if (mount_dvd(this, 1)) { + if (mount(1)) { Dmsg0(99, "DVD device mounted.\n"); if (num_dvd_parts == 0 && !truncating) { /* @@ -556,18 +574,46 @@ void DEVICE::open_dvd_device(DCR *dcr, int omode) if (!check_can_write_on_non_blank_dvd(dcr)) { Mmsg(errmsg, _("The DVD in device %s contains data, please blank it before writing.\n"), print_name()); Emsg0(M_FATAL, 0, errmsg); - unmount_dvd(this, 1); /* Unmount the device, so the operator can change it. */ + unmount(1); /* Unmount the device, so the operator can change it. */ clear_opened(); return; } blank_dvd = true; + } else { + /* + * Ensure that we have the correct DVD loaded by looking for part1. + * We only succeed the open if it exists. Failure to do this could + * leave us trying to add a part to a different DVD! + */ + uint32_t oldpart = part; + struct stat statp; + POOL_MEM part1_name(PM_FNAME); + part = 1; + make_mounted_dvd_filename(this, part1_name); + part = oldpart; + if (stat(part1_name.c_str(), &statp) < 0) { + berrno be; + Mmsg(errmsg, _("Unable to stat DVD part 1 file %s: ERR=%s\n"), + part1_name.c_str(), be.strerror()); + Emsg0(M_FATAL, 0, errmsg); + clear_opened(); + return; + } + if (!S_ISREG(statp.st_mode)) { + /* It is not a regular file */ + Mmsg(errmsg, _("DVD part 1 is not a regular file %s.\n"), + part1_name.c_str()); + Emsg0(M_FATAL, 0, errmsg); + clear_opened(); + return; + } } } else { Dmsg0(99, "DVD device mount failed.\n"); /* We cannot mount the device */ if (num_dvd_parts == 0) { /* Run free space, check there is a media. */ - if (!update_free_space_dev(this)) { + if (!update_freespace()) { Emsg0(M_FATAL, 0, errmsg); clear_opened(); return; @@ -721,7 +767,7 @@ bool DEVICE::rewind(DCR *dcr) break; } } else if (is_file() || is_dvd()) { - if (lseek(dcr, (off_t)0, SEEK_SET) < 0) { + if (lseek(dcr, (boffset_t)0, SEEK_SET) < 0) { berrno be; dev_errno = errno; Mmsg2(errmsg, _("lseek error on %s. ERR=%s.\n"), @@ -804,7 +850,7 @@ bool DEVICE::eod(DCR *dcr) struct mtop mt_com; struct mtget mt_stat; bool ok = true; - off_t pos; + boffset_t pos; if (fd < 0) { dev_errno = EBADF; @@ -828,7 +874,7 @@ bool DEVICE::eod(DCR *dcr) return true; } if (!is_tape()) { - pos = lseek(dcr, (off_t)0, SEEK_END); + pos = lseek(dcr, (boffset_t)0, SEEK_END); // Dmsg1(100, "====== Seek to %lld\n", pos); if (pos >= 0) { update_pos(dcr); @@ -911,12 +957,12 @@ bool DEVICE::eod(DCR *dcr) /* * Avoid infinite loop by ensuring we advance. */ - if (file_num == (int)file) { + if (!at_eot() && file_num == (int)file) { struct mtget mt_stat; Dmsg1(100, "fsf did not advance from file %d\n", file_num); set_ateof(); if (dev_get_os_pos(this, &mt_stat)) { - Dmsg2(100, "Adjust file from %d to %d\n", file , mt_stat.mt_fileno); + Dmsg2(100, "Adjust file from %d to %d\n", file_num, mt_stat.mt_fileno); file = mt_stat.mt_fileno; } break; @@ -954,7 +1000,7 @@ bool DEVICE::eod(DCR *dcr) */ bool DEVICE::update_pos(DCR *dcr) { - off_t pos; + boffset_t pos; bool ok = true; if (!is_open()) { @@ -968,7 +1014,7 @@ bool DEVICE::update_pos(DCR *dcr) if (is_file() || is_dvd()) { file = 0; file_addr = 0; - pos = lseek(dcr, (off_t)0, SEEK_CUR); + pos = lseek(dcr, (boffset_t)0, SEEK_CUR); if (pos < 0) { berrno be; dev_errno = errno; @@ -1537,9 +1583,9 @@ bool DEVICE::reposition(DCR *dcr, uint32_t rfile, uint32_t rblock) } if (!is_tape()) { - off_t pos = (((off_t)rfile)<<32) + (off_t)rblock; + boffset_t pos = (((boffset_t)rfile)<<32) | rblock; Dmsg1(100, "===== lseek to %d\n", (int)pos); - if (lseek(dcr, pos, SEEK_SET) == (off_t)-1) { + if (lseek(dcr, pos, SEEK_SET) == (boffset_t)-1) { berrno be; dev_errno = errno; Mmsg2(errmsg, _("lseek error on %s. ERR=%s.\n"), @@ -1553,8 +1599,7 @@ bool DEVICE::reposition(DCR *dcr, uint32_t rfile, uint32_t rblock) } /* After this point, we are tape only */ - Dmsg4(100, "reposition from %u:%u to %u:%u\n", - file, block_num, rfile, rblock); + Dmsg4(100, "reposition from %u:%u to %u:%u\n", file, block_num, rfile, rblock); if (rfile < file) { Dmsg0(100, "Rewind\n"); if (!rewind(NULL)) { @@ -1581,6 +1626,17 @@ bool DEVICE::reposition(DCR *dcr, uint32_t rfile, uint32_t rblock) /* Ignore errors as Bacula can read to the correct block */ Dmsg1(100, "fsr %d\n", rblock-block_num); return fsr(rblock-block_num); + } else { + while (rblock > block_num) { + if (!read_block_from_dev(dcr, NO_BLOCK_NUMBER_CHECK)) { + berrno be; + dev_errno = errno; + Dmsg2(30, "Failed to find requested block on %s: ERR=%s", + print_name(), be.strerror()); + return false; + } + Dmsg2(300, "moving forward wanted_blk=%d at_blk=%d\n", rblock, block_num); + } } return true; } @@ -1803,8 +1859,8 @@ void DEVICE::close() switch (dev_type) { case B_TAPE_DEV: - tape_close(fd); unlock_door(); + tape_close(fd); break; default: ::close(fd); @@ -1852,14 +1908,18 @@ void DEVICE::close_part(DCR *dcr) dcr->VolCatInfo = saveVolCatInfo; /* structure assignment */ } -off_t DEVICE::lseek(DCR *dcr, off_t offset, int whence) +boffset_t DEVICE::lseek(DCR *dcr, boffset_t offset, int whence) { switch (dev_type) { case B_DVD_DEV: return lseek_dvd(dcr, offset, whence); case B_FILE_DEV: - return ::lseek(fd, offset, whence); - } +#if defined(HAVE_WIN32) + return ::_lseeki64(fd, (__int64)offset, whence); +#else + return ::lseek(fd, (off_t)offset, whence); +#endif + } return -1; } @@ -1909,7 +1969,7 @@ bool DEVICE::mount(int timeout) */ bool DEVICE::unmount(int timeout) { - Dmsg0(90, "Enter unmount_dvd\n"); + Dmsg0(90, "Enter unmount\n"); if (is_mounted()) { return do_mount(0, timeout); } @@ -1939,9 +1999,10 @@ bool DEVICE::do_mount(int mount, int dotimeout) icmd = device->unmount_command; } + clear_freespace_ok(); edit_mount_codes(ocmd, icmd); - Dmsg2(100, "do_mount_dvd: cmd=%s mounted=%d\n", ocmd.c_str(), !!is_mounted()); + Dmsg2(100, "do_mount: cmd=%s mounted=%d\n", ocmd.c_str(), !!is_mounted()); if (dotimeout) { /* Try at most 1 time to (un)mount the device. This should perhaps be configurable. */ @@ -1949,7 +2010,7 @@ bool DEVICE::do_mount(int mount, int dotimeout) } else { timeout = 0; } - results = get_memory(2000); + results = get_memory(4000); results[0] = 0; /* If busy retry each second */ @@ -1957,7 +2018,10 @@ bool DEVICE::do_mount(int mount, int dotimeout) while ((status = run_program_full_output(ocmd.c_str(), max_open_wait/2, results)) != 0) { /* Doesn't work with internationalization (This is not a problem) */ - if (fnmatch("*is already mounted on", results, 0) == 0) { + if (mount && fnmatch("*is already mounted on*", results, 0) == 0) { + break; + } + if (!mount && fnmatch("* not mounted*", results, 0) == 0) { break; } if (timeout-- > 0) { @@ -1970,9 +2034,18 @@ bool DEVICE::do_mount(int mount, int dotimeout) bmicrosleep(1, 0); continue; } - Dmsg2(40, "Device %s cannot be mounted. ERR=%s\n", print_name(), results); - Mmsg(errmsg, _("Device %s cannot be mounted. ERR=%s\n"), - print_name(), results); + if (status != 0) { + berrno be; + Dmsg5(40, "Device %s cannot be %smounted. stat=%d result=%s ERR=%s\n", print_name(), + (mount ? "" : "un"), status, results, be.strerror(status)); + Mmsg(errmsg, _("Device %s cannot be %smounted. ERR=%s\n"), + print_name(), (mount ? "" : "un"), be.strerror(status)); + } else { + Dmsg4(40, "Device %s cannot be %smounted. stat=%d ERR=%s\n", print_name(), + (mount ? "" : "un"), status, results); + Mmsg(errmsg, _("Device %s cannot be %smounted. ERR=%s\n"), + print_name(), (mount ? "" : "un"), results); + } /* * Now, just to be sure it is not mounted, try to read the * filesystem. @@ -2017,8 +2090,18 @@ bool DEVICE::do_mount(int mount, int dotimeout) Dmsg1(29, "do_mount: got %d files in the mount point (not counting ., .. and .keep)\n", count); if (count > 0) { - mount = 1; /* If we got more than ., .. and .keep */ - break; /* there must be something mounted */ + /* If we got more than ., .. and .keep */ + /* there must be something mounted */ + if (mount) { + Dmsg1(100, "Did Mount by count=%d\n", count); + break; + } else { + /* An unmount request. We failed to unmount - report an error */ + set_mounted(true); + free_pool_memory(results); + Dmsg0(200, "== error mount=1 wanted unmount\n"); + return false; + } } get_out: set_mounted(false); @@ -2030,6 +2113,10 @@ get_out: set_mounted(mount); /* set/clear mounted flag */ free_pool_memory(results); + /* Do not check free space when unmounting */ + if (mount && !update_freespace()) { + return false; + } Dmsg1(200, "============ mount=%d\n", mount); return true; } @@ -2214,8 +2301,10 @@ bool double_dev_wait_time(DEVICE *dev) } -void set_os_device_parameters(DEVICE *dev) +void set_os_device_parameters(DCR *dcr) { + DEVICE *dev = dcr->dev; + #if defined(HAVE_LINUX_OS) || defined(HAVE_WIN32) struct mtop mt_com; @@ -2279,6 +2368,22 @@ void set_os_device_parameters(DEVICE *dev) dev->clrerror(MTSETBSIZ); } } +/* Turn this on later when fully tested */ +#if defined(xxxMTIOCSETEOTMODEL) + uint32_t neof; + if (dev_cap(dev, CAP_TWOEOF)) { + neof = 2; + } else { + neof = 1; + } + if (ioctl(dev->fd, MTIOCSETEOTMODEL, (caddr_t)&neof) < 0) { + berrno be; + dev->dev_errno = errno; /* save errno */ + Mmsg2(dev->errmsg, _("Unable to set eotmodel on device %s: ERR=%s\n"), + dev->print_name(), be.strerror(dev->dev_errno)); + Jmsg(dcr->jcr, M_FATAL, 0, dev->errmsg); + } +#endif return; #endif