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Existing behaviour is "posix" style. Next commit will (re)add the
"windows" style. This commit doesn't change behaviour in any way.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12177
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
If ignore_system_acls is set and we're synthesizing a default ACL, we
were fetching the filesystem ACL just to free it again. This change
avoids this.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12177
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Will be reused in the next commit when moving the
make_default_filesystem_acl() stuff to a different place.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12177
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Better for performance and a subsequent commit will add one more option
where this will pay off.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12177
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
No change in behaviour (hopefully! :-). This paves the way for moving
the ACL blob validation to a helper function in the next commit.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12177
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The variables are already set to NULL by TALLOC_FREE.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12177
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
In most realistic cases the "next" VFS op will return the permissions
from the filesystem. This rename makes it explicit where the SD is
originating from. No change in behaviour.
This just paves the way for a later change that will simplify the whole
logic and talloc hierarchy.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12177
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This makes it explicit where the SD is originating from. No change in
behaviour.
This just paves the way for a later change that will simplify the whole
logic and talloc hierarchy, therefor this also strictly renames the
occurences after the out label.
Logically, behind the out label, we're dealing with a variable that
points to what we're going to return, so the name psd_blob is
misleading, but I'm desperately trying to avoid logic changes in this
commit and therefor I'm just strictly renaming.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12177
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This reverts commit 961c4b591b.
Subsequent commits will add the same functionality as an optional
feature.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12177
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Even with "ignore system acls" set to "yes", for objects without NT ACL
xattr we use the underlying filesystem permissions to construct an NT
ACL. This can result in *very* unexpected permissions, eg:
- a directory with the following ACL:
$ ./bin/smbcacls -Uslow%pass //localhost/normal ""
REVISION:1
CONTROL:SR|DP
OWNER:SLOW\slow
GROUP:Unix Group\root
ACL:SLOW\slow:ALLOWED/0x0/FULL
So only one non-inheritable(!) ACE.
- creating a subdirectory:
$ ./bin/smbclient -Uslow%pass //localhost/normal -c "mkdir dir1"
- checking whether there's an ACL xattr:
$ getfattr -m "" /Volumes/normal/dir1
getfattr: Removing leading '/' from absolute path names
system.posix_acl_access
system.posix_acl_default
user.DOSATTRIB
So there isn't an ACL xattr, because there where no inheritable ACEs on
the parent folder.
- reading the new subdirectories ACL:
$ ./bin/smbcacls -Uslow%pass //localhost/normal "dir1"
REVISION:1
CONTROL:SR|DP
OWNER:SLOW\slow
GROUP:Unix Group\slow
ACL:SLOW\slow:ALLOWED/0x0/FULL
ACL:Unix Group\slow:ALLOWED/0x0/READ
ACL:Everyone:ALLOWED/0x0/READ
ACL:NT Authority\SYSTEM:ALLOWED/0x0/FULL
The ACES for "SLOW\slow", "Unix Group\slow" and "Everyone" are coming
from the underlying filesystem. This is the problem.
- Windows assigns the following ACL in this situation:
$ ./bin/smbcacls -UAdministrator%Passw0rd //10.10.10.14/data "dir"
REVISION:1
CONTROL:SR|PD|DI|DP
OWNER:VORDEFINIERT\Administratoren
GROUP:WIN2008R2\Domänen-Benutzer
ACL:WIN2008R2\Administrator:ALLOWED/0x0/FULL
$ ./bin/smbclient -UAdministrator%Passw0rd //10.10.10.14/data -c "mkdir dir\dir1"
$ ./bin/smbcacls -UAdministrator%Passw0rd //10.10.10.14/data "dir\dir1"
REVISION:1
CONTROL:SR|DI|DP
OWNER:VORDEFINIERT\Administratoren
GROUP:WIN2008R2\Domänen-Benutzer
ACL:VORDEFINIERT\Administratoren:ALLOWED/0x0/FULL
ACL:NT-AUTORITÄT\SYSTEM:ALLOWED/0x0/FULL
By changing make_default_filesystem_acl() to only adds user and system
ACE to the ACL of objects that lack an ACL xattr, we match Windows
behaviour:
$ ./bin/smbclient -Uslow%pass //localhost/normal -c "mkdir dir2"
$ ./bin/smbcacls -Uslow%pass //localhost/normal "dir2"
REVISION:1
CONTROL:SR|DP
OWNER:SLOW\slow
GROUP:Unix Group\slow
ACL:SLOW\slow:ALLOWED/0x0/FULL
ACL:NT Authority\SYSTEM:ALLOWED/0x0/FULL
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12028
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue Jul 19 10:22:05 CEST 2016 on sn-devel-144
This function is only used in vfs_acl_common.c and will be modified in
the next commit.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12028
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Check the smb_filename->flags field, or req->posix_pathnames
instead, depending on what is available.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
When "ignore system acls" is set, do not mess at all with POSIX ACLS,
do not even calculate the would-be POSIX-ACL-based security descriptor
(for performance reasons).
Instead, just store a V3 blob with zero hash. This means that if we
later read the ACL without ignoring system ACLs, the NT ACL shall be
reset to the info derivable from the POSIX ACL.
File ownership is still modified as it has bearing on disk quotas.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11806
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Preparing to reduce use of lp_posix_pathnames().
Uses the same techniques as commit 616d068f0c
(synthetic_smb_fname()) to cope with modules that
modify the incoming pathname.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Thu Feb 25 20:46:49 CET 2016 on sn-devel-144
Bumps VFS version to 35.
Preparing to reduce use of lp_posix_pathnames().
Most of this is boilerplate, the only subtleties are in
the modules:
vfs_catia.c
vfs_media_harmony.c
vfs_shadow_copy2.c
vfs_unityed_media.c
Where the path is modified then passed to SMB_VFS_NEXT_GET_NT_ACL().
In these cases the change uses synthetic_smb_fname() to
create a new struct smb_filename from the modified path.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <rb@sernet.de>
This is in preperation of a more fine grained control of POSIX behaviour
in the SMB and VFS layers.
Inititally we use an uint8_t for the flags bitmap and add a define
posix_flags as posix_open in order to avoid breaking the VFS ABI.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11065
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
They are all post-stream name processing.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11249
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Ralph Boehme <rb@sernet.de>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Simo Sorce <idra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Sep 11 03:54:42 CEST 2014 on sn-devel-104
This avoids asking for the posix ACL on disk twice, and avoids running
a good deal of mapping code if it is not needed.
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Christian Ambach <ambi@samba.org>
Where supported by the system ACL backend, this avoids hashing the
result of the ACL mapping, instead hashing the original ACL,
linearlised.
For maximum robustness, the hash of the NT and system ACL are stored,
along with the time and a description of the system ACL. This variety
of extra metadata may assist some future implementation in determining
which hash to validate.
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Christian Ambach <ambi@samba.org>
Omission to free the talloc frame causes a panic (at least in developer mode)
in the next main event loop due to "Frame not freed in order."
(Freed frame ../source3/smbd/process.c:3617, expected ../source3/modules/vfs_acl_common.c:534.)
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Dec 4 09:03:25 CET 2012 on sn-devel-104
When we add a new DACL to the security descriptor, we need to use the
SD as the memory context, so we can talloc_move() it as a tree to a
new parent.
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Nov 2 22:16:14 CET 2012 on sn-devel-104
This makes it clear which context the returned SD is allocated on, as
a number of callers do not want it on talloc_tos().
As the ACL transformation allocates and then no longer needs a great
deal of memory, a talloc_stackframe() call is used to contain the
memory that is not returned further up the stack.
Andrew Bartlett
This should help us understand why sometimes an ACL set won't stick.
Andrew Bartlett
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Sep 11 18:19:53 CEST 2012 on sn-devel-104
This fixes a coredump with a NULL DACL in add_directory_inheritable_components().
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Sat Mar 17 01:05:57 CET 2012 on sn-devel-104
If referring to an fsp sbuf can be left as an uninitialized variable,
causing the 'is_directory' variable to be false when it should be true.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Fri Dec 2 22:13:03 CET 2011 on sn-devel-104
This is what the source4/ntvfs/posix code uses.
It's also used at provision time to setup the sysvol permissions.
metze
Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Tue Oct 11 14:16:25 CEST 2011 on sn-devel-104
Ensure we always use vfs_ChDir() to keep the singleton cache coherent.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Fri Aug 19 00:43:05 CEST 2011 on sn-devel-104
