CHANGES

   1 $Id: CHANGES,v 1.38 2000/01/26 11:38:07 stelian Exp $
   2
   3 Changes between versions 0.4b13 and 0.4b14 (released ????????????????)
   4 ======================================================================
   5
   6 1.      Fixed a bug in dump which may have caused invalid deleted
   7         directories to be dumped out if they were deleted after the
   8         mapping pass. This could occure on active filesystem and lead
   9         to heap corruption (causing dump malfunction in many possible ways).
  10         Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
  11         bug and submitting the patch.
  12
  13 2.      Fixed the handling of the filesystem parameter in dump. A
  14         '/mnt/disk' parameter caused the disk contents to be dumped,
  15         but a '/mnt/disk/' parameter caused the mountpoint directory
  16         to be dumped (generally an empty directory).
  17
  18 3.      Improved the output of dump in order to tell which directory
  19         it is currently dumping (when dumping a subtree).
  20
  21 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
  22 ======================================================================
  23
  24 1.      Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
  25         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
  26
  27 2.      Removed the requirement to build the RPM as root from the
  28         spec file. Thanks to Christian Weisgerber
  29         <naddy@mips.rhein-neckar.de> for submitting this.
  30
  31 3.      Fixed a bug in dump related to the 'filetype' feature of ext2fs,
  32         causing dump to block when dumping really huge filesystems.
  33         Many thanks to Patrik Schindler <poc@pocnet.net> for
  34         helping me find this bug.
  35
  36 4.      Fixed the treatment for an interrupt signal when dump access
  37         the remote tape through RSH. Thanks to Christian Weisgerber
  38         <naddy@mips.rhein-neckar.de> for providing the patch.
  39
  40 5.      Fixed a bug which was causing dump/restore to display
  41         garbage characters instead of the remote host name.
  42
  43 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
  44 =====================================================================
  45
  46 1.      Small fix in the dump man page. Thanks to Thorsten Kukuk
  47         <kukuk@suse.de> for submitting the patch.
  48
  49 2.      Fix for the exit code when using the size estimate option of
  50         dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
  51         submitting the patch.
  52
  53 3.      Handle EINTR in atomical reads/writes in dump, which was causing
  54         dump to fail on some systems. Thanks to Eric Jergensen
  55         <eric@dvns.com> for reporting the bug and submitting the patch.
  56
  57 4.      Handle more than 16 characters for the device names in dumpdates.
  58         (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
  59         tracking down the problem and proposing the solution.
  60
  61 5.      Fixed a bug in dump which prevented the creation of the
  62         dumpdates file when doing a 0-level dump without already
  63         having a dumpdates file. Thanks to Patrik Schindler
  64         <poc@pocnet.net> for reporting the bug.
  65
  66 6.      Changed the way dump 'S' flag reports the size estimate
  67         from number of blocks into bytes (making it compatible
  68         with the Solaris version, and simplifying things for
  69         amanda users). Thanks to Jason L Tibbitts III
  70         <tibbs@math.uh.edu> for reporting the bug.
  71
  72 7.      Fixed a compatibility problem in linux/alpha dump tape format.
  73         Now the linux/alpha dump are (again) compatible with the
  74         other dump formats. But this breaks compatibility with
  75         older dumps made on alpha. Thanks to Mike Tibor
  76         <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
  77
  78 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
  79 ======================================================================
  80
  81 1.      Added a '--enable-kerberos' to configure.
  82
  83 2.      Added a 'S' option to dump which determines the amount of space
  84         that is needed to perform the dump without actually doing it, similar
  85         to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
  86         <cermak@ahab.rutgers.edu>.
  87
  88 3.      Added a 'M' multi-volume option to dump and restore which enables
  89         dumping to multiple files (useful when dumping to an ext2
  90         partition to make several dump files in order to bypass the 2GB
  91         file size limitation). The 'f' argument is treated as a prefix and
  92         the output files will be named <prefix>001, <prefix>002 etc. With
  93         the 'M' flag, restore automatically selects the right file without
  94         asking to enter a new tape each time.
  95
  96 4.      Fixed a memory leak which was causing dump to grow very big
  97         (270MB when dumping a 10GB filesystem...). Thanks to Jason
  98         Fearon <jasonf@netrider.org.au> for reporting the bug.
  99
 100 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
 101 ======================================================================
 102
 103 1.      Make configure test if the system glob routines support
 104         extended syntax (ALTDIRFUNC). If not, use the internal glob
 105         routines instead of system ones. Thanks to Bernhard Sadlowski
 106         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
 107         and helping me resolve this and other minor libc5 compiling
 108         glitches.
 109
 110 2.      Fix a problem when dumping a ext2fs with the 'filetype'
 111         feature enabled. Thanks to Patrick J. LoPresti
 112         <patl@cag.lcs.mit.edu> for reporting the bug and to
 113         Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
 114
 115 3.      Made the nodump flag work on directories. A directory which
 116         has the nodump flag gets never dumped, regardless of its
 117         contents.
 118
 119 4.      Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
 120         which allows dump on an active ext3 filesystem. However, this
 121         is a "quick and dirty" patch which enables backup of an ext3
 122         filesystem through the ext2 compatibility (by ignoring the
 123         NEEDS_RECOVERY bit). The journal file is not recognized and
 124         it is dumped (it should not).
 125
 126 5.      Test the superblock compatibility flags when dumping, in order
 127         to be sure that we know how to deal with specific features.
 128
 129 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
 130 ====================================================================
 131
 132 1.      Use lchown instead of chown, fixing a possible security problem
 133         when restoring symlinks (a malicious user could use this
 134         to deliberately corrupt the ownership of important system files).
 135         Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
 136         this and providing the patch.
 137
 138 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
 139 ====================================================================
 140
 141 1.      Put dump sources under CVS, added Id tags in all files so
 142         one can use 'ident' on binary files.
 143
 144 2.      Added the dump/restore version in the usage text so one can
 145         easily verify the version he is using.
 146
 147 3.      Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
 148         a va_start/va_end problem on linux-ppc (always call va_start
 149         va_end in pairs each time we use a vararg function).
 150
 151 4.      Added again the DT_* constants because old libc does not
 152         contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
 153         for submitting the bug report.
 154
 155 5.      Use ext2fs_llseek instead of llseek. With recent e2fsprogs
 156         this should enable dumping big (huge) filesystems.
 157
 158 6.      Added the RSH environment variable in order to be able to
 159         use a rsh replacement like ssh when doing remote backups (and
 160         bypass the security limitations of rcmd). Now you can do remote
 161         backups without being root (or making dump setuid root).
 162
 163 7.      Modified again the way dumpdates works. For incremental dumps,
 164         we need to read dumpdates even if we are not using 'u' option.
 165         Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
 166         this should work.
 167
 168 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
 169 ===================================================================
 170
 171 1.      Removed the 'k' flag from the restore 'about' text if kerberos
 172         was not compiled in.
 173
 174 2.      Prototyped (f)setflags from e2fsprogs and corrected the calls
 175         to them (fsetflags takes a char*, setflags an open fd!).
 176
 177 3.      (f)setflags is called only if the flags aren't empty. If the
 178         file is a special file, a warning is printed, because changing
 179         flags implies opening the device. Normally, a special file
 180         should not have any flag... (Debian bug #29775, patch provided
 181         by Abhijit Dasgupta <abhijit@ans.net>).
 182
 183 4.      Made possible to dump a file system not mentioned in /etc/fstab.
 184         (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
 185
 186 5.      Changed the default behaviour to not create dumpdates
 187         unless 'u' option is specified. Removed the old "debian-patch"
 188         which provided the same thing. (Debian bug #38136, #33818).
 189
 190 6.      Removed all those dump*announce, since they were getting old...
 191
 192 7.      Added warning messages if dumpdates does not exist and
 193         when an inferior level dump does not exist (except for a level 0
 194         dump).
 195
 196 8.      Debugged the glob calls in interactive mode: restore used a
 197         dirent struct which was different from the /usr/include/dirent.h
 198         one (this used to work, is it a glibc2 change?), so none of the
 199         compat glob (which used /usr/include/dirent.h) or the system glob
 200         worked. Restore use now the system dirent (and the system
 201         DT_* constants), which are compatible with BSD ones.
 202
 203 9.      Added a configure flag (--with-dumpdatespath) to specify
 204         the location of dumpdates file. By default, it is
 205         /etc/dumpdates.
 206
 207 10.     Added the "AUTHOR" and "AVAILABILITY" sections and
 208         included the current date/version in man pages.
 209
 210 11.     Corrected the estimation of remaining time when
 211         the operator doesn't change the tapes quickly enough. This
 212         was an old bug, I thought I corrected it, and discovered
 213         that in fact it was corrected in two different places, so
 214         the results canceled each other...
 215
 216 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
 217 ===================================================================
 218
 219 1.      Integrated multiple patches from RedHat, Debian and SuSE:
 220
 221         - tweak dump/itime.c to not try to read dumpdates if the 'u' option
 222           isn't specified.
 223         - several fixes in the man pages.
 224         - update the default tape device to /dev/st0.
 225         - many updates for Linux Alpha (byte ordering, size_t etc).
 226         - buffer overruns.
 227         - use environment variable for TMPDIR (instead of /tmp).
 228         - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
 229         - workaround egcs bug (RedHat bugs #4281 and #2989).
 230         - wire $(OPT) throughout Makefile's.
 231
 232 2.      Upgrade the dump revision to 1, making possible to dump filesystems
 233         made with e2fsprogs-1.15 or newer. Nothing seems to break...
 234
 235 3.      Fix some compile warnings, prototype all functions.
 236
 237 4.      Use glibc err/glob instead of internal compatibility
 238         routines (only if available).
 239
 240 5.      Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
 241         by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
 242
 243 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
 244 ======================================================================
 245
 246 1.      Integrated the changes from FreeBSD-3.1-RELEASE
 247         (mostly bug fixes, buffer overruns, dump has now an "automatic
 248         tape length calculation" flag, dump/restore can use kerberos now
 249         (this is NOT tested), use environment variables for TAPE and
 250         RMT etc.).
 251
 252 2.      Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
 253
 254 3.      Corrected a bug in restore when using 'C' option with multi-volumes
 255         tapes (files splited accros two tapes give "size changed" errors
 256         when comparing).
 257
 258 4.      Corrected the long standing bug when dumping multiple tapes.
 259         This works for me, needs further testing.
 260
 261 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
 262 ====================================================================
 263
 264 1.      Dump now runs correctly on kernels 2.1.x
 265         Fix made by Gerald Peters <gapeters@worldnet.att.net>
 266
 267 Changes between versions 0.4b2 and 0.4b3
 268 ========================================
 269
 270 1.      Use realpath() if available
 271
 272 2.      Report statistics
 273
 274 Changes between versions 0.4b1 and 0.4b2
 275 ========================================
 276
 277 1.      Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
 278         the patch)
 279
 280 2.      Fixed restore to make it able to read FreeBSD 2.x dumps again
 281
 282 3.      Fixed configure.in to correctly handle --enable-rmt
 283
 284 Changes between versions 0.3 and 0.4b1
 285 ======================================
 286
 287 1.      Integrated the changes from 4.4BSD-Lite2
 288
 289 2.      Integrated the patches from Debian and Red Hat
 290
 291 3.      Portability changes: use the __u32, __u16, __s32, and __s16 types
 292
 293 4.      Changed dump to use the Ext2fs library to get block addresses.  This
 294         should solve the endianness problem on SparcLinux.
 295
 296 5.      Created a configure.in file (shamelessly stolen from the e2fsprogs
 297         distribution's one) to use autoconf
 298
 299 6.      Fixed a few minor bugs
 300
 301 Changes between versions 0.2e and 0.2f
 302 ======================================
 303
 304 1.      Added the creation of named pipes (fifos) in restore.
 305
 306 2.      Added the -N flag in the restore manual page.
 307
 308 3.      Added the file kernel.patch which contains the llseek() optimization
 309         patch for 1.2.x kernels.
 310
 311 4.      Fixed a bug in the restoration of symbolic links: owner and group were
 312         not restored.
 313
 314 5.      Integrated some changes from FreeBSD 2.2.
 315
 316 6.      Added a call to ftruncate() after restoring each file to restore
 317         correctly files ending by a hole.
 318
 319 Changes between versions 0.2d and 0.2e
 320 ======================================
 321
 322 1.      Fixed a bug in the "set owner/mode" process.  Every file was restored
 323         with owner = root (0) and group = root/wheel/whatever (0).
 324
 325 Changes between versions 0.2c and 0.2d
 326 ======================================
 327
 328 1.      Dump is now able to backup 2GB+ filesystems.
 329
 330 2.      Dump and restore can now be linked as static binaries.
 331
 332 Changes between versions 0.2b and 0.2c
 333 ======================================
 334
 335 1.      Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
 336
 337 Changes between versions 0.2a and 0.2b
 338 ======================================
 339
 340 1.      Really fixed the bug that I should have corrected in 0.2a.
 341
 342 2.      Enabled optimization again.
 343
 344 Changes between versions 0.2 and 0.2a
 345 =====================================
 346
 347 1.      Disabled the optimization during compilation.
 348
 349 Changes between versions 0.1 and 0.2
 350 ====================================
 351
 352 1.      Fixed a bug in fstab.c which caused a null pointer to be stored in
 353         the fs_type field (actually, I modified the file fstab.c to make it
 354         use the mntent functions).
 355
 356 2.      Dump and restore now use a 4.3 BSD compatible dump format.  Backups
 357         made by dump should be readable by the BSD restore and backups made
 358         by the BSD dump should be readable by restore.  Unfortunately, this
 359         means that the dump format has changed between version 0.1 and version
 360         0.2 :-(
 361
 362 3.      Dump is now able to backup a subtree, it is no longer limited to whole
 363         filesystems like the BSD version.
 364
 365 4.      Dump now uses ext2_llseek() so it is able to backup filesystems bigger
 366         than 2 GB.
 367
 368 Changes between versions 0.0 and 0.1
 369 ====================================
 370
 371 1.      Now create links rdump and rrestore during the `make install' step.
 372
 373 2.      Linux port specific bugs added to the manual pages
 374
 375 3.      Incorrect estimation of the number of tapes blocks fixed when doing
 376         incremental backups.
 377
 378 4.      Better ls-like format in restore in interactive mode.