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The "lock spin time" parameter mimics the following Windows
setting which by default is 250ms in Windows and 200ms in Samba.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\LockViolationDelay
When a client sends repeated, non-blocking, contending BRL requests
to a Windows server, after the first Windows starts treating these
requests as timed blocking locks with the above timeout.
As an efficiency, I've changed the behavior when this setting is 0,
to skip this logic and treat all requests as non-blocking locks.
This gives the smbd server behavior similar to the 3.0 release with
the do_spin_lock() implementation.
I've also changed the blocking lock parameter in the call from
push_blocking_lock_request() to true as all requests made in this
path are blocking by definition.
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This hasn't been turned on or been capable of doing so for
many years now. Makes this jumbo function smaller...
Jeremy.
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NT_STATUS_OBJECT_PATH_INVALID error"
This reverts commit 2fdd8b10c6abadd27c579e772c0482214d2363a5.
This fix is incorrect. The original code works as desired,
I made a mistake here.
Jeremy.
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NT_STATUS_OBJECT_PATH_INVALID error
As tridge's comment says, we should be ignoring ACCESS_DENIED
on the share path in a TconX call, instead allowing the mount
and having individual SMB calls fail (as Windows does). The
original code erroneously caught SMB_VFS_STAT != 0 and errored
out on that.
Jeremy.
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Jeremy.
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Volker.
Create widelinks_warning(int snum) to cover the message needed in make_connection.
Jeremy.
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are incompatible.
Volker pointed out that the preexec scripts get passed the conn->connectpath
as a parameter, so call canonicalize_connect_path() both *before* and after
the preexec scripts. Ignore errors on the call before the preexec scripts,
as the path may not exist until created by the preexec scripts.
Jeremy.
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This way we avoid any chance that a configuration reload may turn
back on wide links when unix extensions are enabled.
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extensions" are incompatible.
Make sure we match the previous allow widelinks behavior, in that
non-root preexec scripts can create share directories for a share
definition.
Jeremy
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incompatible.
Bug reported by Ralf Zimmermann <r.zimmermann@siegnetz.de>. Reproduced by jra.
If the target directory of a share doesn't exist, but is designed to
be created by a "root preexec" script call, then the widelinks check
is done too early - thus preventing the user from connecting to the
share.
Fix is to re-arrange the order of checks in make_connection_snum()
to always do the following order of operations:
(1). Turn off wide links if unix extensions = yes.
(2). Call any root preexec scripts.
(3). Canonicalize the share path to remove any symlinks (ie. end
up with the realpath in the connection_struct).
Jeremy.
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(cherry picked from commit 365b408c458c848a818637d9b36a0423aeb1ba54)
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values in subsequent SMBtrans replies)
There are two problems:
1). The server is off-by-one in the end of buffer space test.
2). The server returns 0 in the totaldata (smb_vwv1) and totalparams (smb_vwv0)
fields in the second and subsequent SMBtrans replies.
This patch fixes both.
Jeremy.
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metze
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A comparison function for qsort needs to return an 'int'!
Otherwise you'll get random results depending on the compiler
and the architecture...
metze
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This is needed to support large browse lists.
metze
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metze
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metze
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Jeremy.
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On unclean shutdown we can end up with stale entries in the brlock,
connections and locking db. Previously we would do the cleanup on
every unclean exit, but that can cause smbd to be completely
unavailable for several minutes when a large number of child smbd
processes exit.
This adds a rate limited cleanup of the databases, with the default
that cleanup happens at most every 20s
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These have been replaced with the min timeout in blocking.c
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When we are waiting on a pending byte range lock, another smbd might
exit uncleanly, and therefore not notify us of the removal of the
lock, and thus not trigger the lock to be retried.
We coped with this up to now by adding a message_send_all() in the
SIGCHLD and cluster reconfigure handlers to send a MSG_SMB_UNLOCK to
all smbd processes. That would generate O(N^2) work when a large
number of clients disconnected at once (such as on a network outage),
which could leave the whole system unusable for a very long time (many
minutes, or even longer).
By adding a minimum re-check time for pending byte range locks we
avoid this problem by ensuring that pending locks are retried at a
more regular interval.
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Jeremy.
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Change parameter "wide links" to default to "no".
Ensure "wide links = no" if "unix extensions = yes" on a share.
Fix man pages to refect this.
Remove "within share" checks for a UNIX symlink set - even if
widelinks = no. The server will not follow that link anyway.
Correct DEBUG message in check_reduced_name() to add missing "\n"
so it's really clear when a path is being denied as it's outside
the enclosing share path.
Jeremy.
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Jeremy.
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new create time code.
Remove erroneous optimisation that caused no EA to be set
if calculated btime matched st_ex btime, and calculated DOS
attribute matched existing file attribute.
Jeremy.
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when logged as root.. Doh !
Jeremy.
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conn->server_info->utok.uid == 0
isn't the correct check to see if we're root anymore. As rpc_samr_nt.c does,
the correct check is :
geteuid() == sec_initial_uid()
Jeremy.
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The destname malloc size was not taking into account the 1 extra byte
needed if a string without a leading '/' was passed in and that slash
was added.
This would cause the '\0' byte to be written past the end of the
malloced destname string and corrupt whatever heap memory was there.
This problem would be hit if a share name was given in smb.conf without
a leading '/' and if it was the exact size of the allocated STRDUP memory
which in some implementations of malloc is a power of 2.
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respond to a read or write.
Only works on Linux kernels 2.6.26 and above. Grants CAP_KILL capability
to allow Linux threads under different euids to send signals to each other.
Jeremy.
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Jeremy.
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This reverts commit 9536d94d5478b63fc05047964b40d8786a7246c4.
Bjorn, your change removed the ndr_decoding of the dos attribute.
Not a good idea :-).
Jeremy.
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Jeremy, please check!
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This makes it a bit more obvious for me that the signing sequence number is
tied to the SMB request.
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Jeremy.
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a directory.
Argh. Missed the second (and essential) part of the fix for the above :-(.
Jeremy
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a directory.
There is a codepath missing to propagate back error returns from the rmdir
POSIX call inside close_directory when delete on close is set. This means doing
an rmdir on a Windows command line will always report success, even when the
directory was not deleted. This fix adds that codepath back into Samba.
Jeremy.
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rights fails even if the delete right is set on the object.
Final fix for the vfs_acl_xattr and vfs_acl_tdb code.
Ensure we can delete a file even if the underlying POSIX
permissions don't allow it, if the Windows permissions do.
Jeremy.
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This is no longer used for anything.
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Windows seems to allow this
http://lists.samba.org/archive/samba-technical/2009-November/068116.html
has a dump of this.
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This bug re-occurred for 3.3.x and above.
The reason is that to change a NT ACL we now have to open the file requesting
WRITE_DAC and WRITE_OWNER access. The mapping from POSIX "w" to NT permissions
in posix_acls doesn't add these bits when "dos filemode = yes", so even though
the permission or owner change would be allowed by the POSIX ACL code, the
NTCreateX call fails with ACCESS_DENIED now we always check NT permissions
first.
Added in the mapping from "w" to WRITE_DAC and WRITE_OWNER access.
Jeremy.
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This is to introduce a new format of the password history, maintaining backwards
compatibility: The old format was 16 byte hash + 16 byte md5(salt + nt hash).
The new format is 16 zero bytes and 16 bytes nt hash.
This will allow us to respect the last X entries of the nt password history
when deciding whether to increment the bad password count.
This is part of the fix for bug #4347 .
Michael
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The code I just removed was checked in with e5466fffc286a99f as a bug fix for
https://bugzilla.samba.org/show_bug.cgi?id=3319. With the changes to
is_visible_file made with 9e8b8f8c16612 these lines have become unnecessary,
even with "hide unreadable = yes" dead msdfs symlinks show. This is because we
can not stat(2) them and default to showing them.
Why this change? I have a user who wants to use "hide unreadable" on msdfs
links. Because you can't edit acls on symlinks themselves, the user created the
targets as bogus, empty files that just exist as acl placeholders. With the
code in place that this patch removes, we never allow this to work.
Jeremy, please check! :-)
Thanks,
Volker
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