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smbd_check_access_rights() - we can always delete a symlink.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Fri Dec 16 03:32:15 CET 2011 on sn-devel-104
Don't manipulate the new_dos_attributes bits until we know it's not a POSIX open.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Wed Oct 5 01:19:17 CEST 2011 on sn-devel-104
I think we should reject invalid access early,
before we might create new files.
Also smbd_check_open_rights() is only called if the file existed.
metze
We can't allow open with access that has been denied via the share
security descriptor
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Tue Jul 5 16:21:54 CEST 2011 on sn-devel-104
Move lp_acl_check_permissions() into can_delete_file_in_directory()
where it makes sense. Remove ACL check when requesting DELETE_ACCESS
when lp_acl_check_permissions is false.
Thanks to John Janosik @ IBM for noticing this.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Fri Jun 24 01:18:11 CEST 2011 on sn-devel-104
When changing ownership on a new file make sure we
must have a valid stat struct before making the inheritance
calls (as they may look at it), and if we make changes we
must have a valid stat struct after them.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Wed Jun 8 03:07:04 CEST 2011 on sn-devel-104
Force the open operation (which is the expensive one anyway) to
acquire and release locks in a way compatible with the more common
do_lock check.
Jeremy.
In the oplock refactoring, the algorithm underwent an unnoticed change.
In 3.5.x stat_opens were silently (i.e. no explicit code had comments
explaining this) ignored when looking for oplock breaks and share mode
violations. After the refactoring, the function find_oplock_types()
no longer ignored stat_open entries in the share mode table when looking
for batch and exclusive oplocks. This patch adds two changes to find_oplock_types()
to ignore the case where the incoming open request is a stat open being
tested against existing opens, and also when the incoming open request
is a non-stat open being tested against existing stat opens. Neither
of these cause an oplock break or share mode violation. Thanks a *lot*
to Volker, who persevered in reproducing this problem.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Mon May 16 22:38:20 CEST 2011 on sn-devel-104
From the Microsoft test suite @ Connectathon:
Test Case: TestSuite_ScenarioNo009GrantedAccessTestS0
File created with access = 0x7 (Read, Write, Delete)
Query Info on file returns 0x87 (Read, Write, Delete, Read Attributes)
Jeremy.
These variables, of type struct auth_serversupplied_info were poorly
named when added into 2001, and in good consistant practice, this has
extended all over the codebase in the years since.
The structure is also not ideal for it's current purpose. Originally
intended to convey the results of the authentication modules, it
really describes all the essential attributes of a session. This
rename will reduce the volume of a future patch to replaced these with
a struct auth_session_info, with auth_serversupplied_info confined to
the lower levels of the auth subsystem, and then eliminated.
(The new structure will be the output of create_local_token(), and the
change in struct definition will ensure that this is always run, populating
local groups and privileges).
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Start of the move towards handle-based code for directory access.
Currently makes fstat/fchown code work for directories rather than
falling back to pathnames.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Tue Feb 8 06:34:41 CET 2011 on sn-devel-104
delay_for_oplocks() did 4 things.
1). Validation of existing oplock types.
2). Check for compatibility with batch oplocks (pass 1).
3). Check for compatibility with exclusive oplocks (pass 2).
4). Set the correct oplock type from the requested value.
Refactor into 4 separate functions:
1). find_oplock_types() - does validation of oplock types and
returns pointers to specific values.
2). delay_for_batch_oplocks() - the pass 1 phase above.
3). delay_for_exclusive_oplocks() - the pass 2 phase above
4). grant_fsp_oplock_type() - Set the correct oplock type from the requested value.
Now separated out this code should be much easier to understand
and modify. This also fixes an erroneous SMB_ASSERT which was
hidden by the previous complexity of the single delay_for_oplocks()
code.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Wed Feb 2 01:52:21 CET 2011 on sn-devel-104
Do this by keeping a linked list of delete on close tokens, one for
each filename that identifies a path to the dev/inode. Use the
jenkins hash of the pathname to identify the correct token.
strict allocation on sparse files. Files opened as POSIX opens are always
sparse.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Tue Dec 21 04:12:22 CET 2010 on sn-devel-104
Not needed - privileges code prevents "enable privileges = no" from adding privileges
anyway.
This reverts commit a8b95686a7.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Fri Oct 22 23:41:36 UTC 2010 on sn-devel-104
to maintain compatibility with smb.conf manpage.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Fri Oct 22 18:15:48 UTC 2010 on sn-devel-104
open and get/set NT security descriptor code.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Thu Oct 21 00:15:57 UTC 2010 on sn-devel-104
It turns out a client can send an NTCreateX call for a new file, but specify
FILE_ATTRIBUTE_DIRECTORY in the attribute list. Windows silently strips this,
but we don't - causing the unix_mode() function to go through the "mode bits
for new directory" codepath, instead of the "mode bits for new file" codepath.
Jeremy.
This will reduce the noise from merges of the rest of the
libcli/security code, without this commit changing what code
is actually used.
This includes (along with other security headers) dom_sid.h and
security_token.h
Andrew Bartlett
Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Tue Oct 12 05:54:10 UTC 2010 on sn-devel-104
The all UPPER case typedef is no longer the preferred Samba style
and this makes it easier to see that this is the IDL-derivied structure
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
If we just created the file, it has length 0 by definition. This is still done
while holding the share mode lock, so no race around wrt other cifs clients.
This shrinks include/includes.h.gch by the size of 7 MB and reduces build time
as follows:
ccache build w/o patch
real 4m21.529s
ccache build with patch
real 3m6.402s
pch build w/o patch
real 4m26.318s
pch build with patch
real 3m6.932s
Guenther
Makes SMB2Create call re-entrant internally.
Now this infrastructure is in place, oplocks will follow shortly.
Tested with Win7 client and with W2K8R2.
Jeremy.
Rename functions to be internally consistent. Next step is
to cope queueing single (non-compounded) SMB2 requests to
put some code inside the stubs.
Jeremy.
Use accessor functions to get to this value. Tidies up much of
the user context code. Volker, please look at the changes in smbd/uid.c
to familiarize yourself with these changes as I think they make the
logic in there cleaner.
Cause smbd/posix_acls.c code to look at current user context, not
stored context on the conn struct - allows correct use of these
function calls under a become_root()/unbecome_root() pair.
Jeremy.
Ensure we don't use any of the create_options for Samba private
use. Add a new parameter to the VFS_CREATE call (private_flags)
which is only used internally. Renumber NTCREATEX_OPTIONS_PRIVATE_DENY_DOS
and NTCREATEX_OPTIONS_PRIVATE_DENY_FCB to match the S4 code).
Rev. the VFS interface to version 28.
Jeremy.
done on both Windows and POSIX mkdirs instead of
only on Windows mkdir (as intended). The variable
"file_attributes" had already had FILE_FLAG_POSIX_SEMANTICS
removed above in the function if it had already been set.
Jeremy.
in the "user.DOSATTRIB" EA. From the docs:
In Samba 3.5.0 and above the "user.DOSATTRIB" extended attribute has been extended to store
the create time for a file as well as the DOS attributes. This is done in a backwards compatible
way so files created by Samba 3.5.0 and above can still have the DOS attribute read from this
extended attribute by earlier versions of Samba, but they will not be able to read the create
time stored there. Storing the create time separately from the normal filesystem meta-data
allows Samba to faithfully reproduce NTFS semantics on top of a POSIX filesystem.
Passes make test but will need more testing.
Jeremy.
On filesystems that can't store less than one second timestamps,
round the incoming timestamp set requests so the client can't discover
that a time set request has been truncated by the filesystem.
Needs backporting to 3.4, 3.3, 3.2 and (even) 3.0.
Jeremy
