Hello,

currently, we have daylight savings time. If a filedate is in a season where
there is no daylight savings time, the file date is reported "the wrong way" by
the samba server.

Here is the test case:

We are creating two files, whose date should be midnight exactly. Then we are
looking at the files' modification times, once using the local filesystem and
once using the samba-loopback-mounted filesystem. The problem occurs both when
using "cifs" or "smbfs" as loopback-filesystem. Interception using "ethereal"
indicates that the problem is created at the server side, not at the client side.


router|14:21:08|~> mount //localhost/hd /mnt/test2
[...]
router|14:22:17|/tmp> touch -t 200504010000 test.summer
router|14:22:18|/tmp> touch -t 200502010000 test.winter 
router|14:22:23|/tmp> stat test.summer
  File: `test.summer'
  Size: 0               Blocks: 0          IO Block: 131072 regular empty file
Device: 343h/835d       Inode: 41080       Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2005-04-01 00:00:00.000000000 +0200
Modify: 2005-04-01 00:00:00.000000000 +0200
Change: 2005-04-09 14:22:18.000000000 +0200
router|14:22:30|/tmp> stat test.winter
  File: `test.winter'
  Size: 0               Blocks: 0          IO Block: 131072 regular empty file
Device: 343h/835d       Inode: 41081       Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2005-02-01 00:00:00.000000000 +0100
Modify: 2005-02-01 00:00:00.000000000 +0100
Change: 2005-04-09 14:22:23.000000000 +0200
router|14:22:38|/tmp> stat /mnt/test2/tmp/test.summer
  File: `/mnt/test2/tmp/test.summer'
  Size: 0               Blocks: 0          IO Block: 4096   regular empty file
Device: fh/15d  Inode: 246206      Links: 1
Access: (0755/-rwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2005-04-01 00:00:00.000000000 +0200
Modify: 2005-04-01 00:00:00.000000000 +0200
Change: 2005-04-09 14:22:18.000000000 +0200
router|14:22:52|/tmp> stat /mnt/test2/tmp/test.winter
  File: `/mnt/test2/tmp/test.winter'
  Size: 0               Blocks: 0          IO Block: 4096   regular empty file
Device: fh/15d  Inode: 246207      Links: 1
Access: (0755/-rwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2005-01-31 23:00:00.000000000 +0100
Modify: 2005-01-31 23:00:00.000000000 +0100
Change: 2005-04-09 14:22:23.000000000 +0200
router|14:23:27|/tmp> smbd --version
Version 3.0.10-0.1-SUSE
router|14:23:29|/tmp>


Note that "Modify: 2005-01-31 23:00:00.000000000 +0100" is wrong, the expected
output is "Modify: 2005-02-01 00:00:00.000000000 +0100" as above.

Due to this bug, creating accurate backups using Samba is not possible. Simply
changing the "time offset" parameter does not help either, because then, all
"summer times" would be wrong.