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Add a NFS4 ACL backend that stores the ACL blob in an XDR encoded xattr,
by default in "security.nfs4acl_xdr".
This backend is enabled by setting "nfs4acl_xattr:encoding = xdr" in a
share definition.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This allows take-ownership to work if the user has SEC_STD_WRITE_OWNER.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The vfs_nfs4acl_xattr VFS module is supposed to work the same as
vfs_acl_xattr|tdb with "ignore system acls" set to true. That is,
filesystem permissions should never restrict access and the actual
access checks are done by smbd in userspace.
To better cope with POSIX mode changes via other protocols (eg NFS) or
local filesystem access, add the following tweaks:
o validate ACL blob: if POSIX mode is not 0777/0666 discard the ACL blob
from the xattr and synthesize a default ACL based on the POSIX mode
o when setting an ACL, check and reset POSIX mode to 0777/0666
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This ensures we can always fetch the ACL xattr blob when we wanted,
unrestricted of filesystem permissions or Linux xattr security namespace
restrictions.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Only tests with "nfs4:mode = simple" as mode special is supposed to be
broken anyway and simple is recommended.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This is the current default, just make it explicit. A subsequent commit
will bump the default to 4.1.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This is in preperation of modularizing the storage backend. Currently we
store the NFS4 ACL as an IDL/NDR encoded blob in a xattr.
Later commits will add a different backend storing the NFS4 ACL as an
XDR encoded blob in a xattr.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We only open the underlying file if the open access mode contains
FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Refactor the code in preperation of factoring out ACL blob to smb4acl
and vice versa mapping functions.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
README.Coding adjustments, DEBUG macro modernisation, variable name
sanitizing. No change in behaviour.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This changes the way ACL inheritance is achieved in this
module.
Previously the module recursed to the next parent directory until the
share root was reached or a directory with an ACL xattr. If the share
root didn't contain an ACL xattr either a default ACL would be used.
This commit removed this recursive scanning and replaces it with the
same mechanism used by vfs_acl_xattr: by setting "inherit acls = yes"
just let smbd do the heavy lefting and inheritance.
For any file without ACL xattr we still synthesize a default ACL,
leveraging the existing default ACL function used by vfs_acl_xattr.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
No change in behaviour, all option defaults are set to the original
behaviour.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The "system" xattr namespace is reserved for the kernel. Any attempt to
use xattrs in that namesspace will fail with EOPNOTSUPP, regardless of
priveleges. In autobuild we're using the xattr_tdb VFS module, so it
works there.
Using the "security" namespace instead makes this module generally
usable with Linux filesystem xattrs as storage backend.
Additionally prefix the xattr name with "_ndr". This is in preperation
of later commits that add a ACL blob marshalling format based on XDR. To
avoid xattr name collision, both format will use distinct xattr names by
default.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Move interesting functions to the top of the vfs_fn_pointers struct, no
change in behaviour.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This synthesizes an ACL with a single ACE with full permissions for
everyone. Not used for now, this comes later.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This will be used by another VFS module in a subsequent commit.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This is in preperation of moving make_default_filesystem_acl() and
making it globally accessible. No change in behaviour.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
All the other subtests in samba3.raw.acls.create_file|dir pass with
nfs4acl_xattr, it's just the subtest that tries to set the owner which
fails with everything else then acl_xattr.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Sockets need to be created from sock_daemon_run_send(). This means
that stale socket removal can depend on the PID file context being
initialised.
Also fix associated test.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
This is an optimisation that can cause incorrect results. If ctdbd
was killed and there is a stale PID file then this will often cause
"CTDB exited during initialisation". The wrapper reads the old PID
from the PID file, finds the PID gone, complains and exits.
It is better to drop this code and finally get this right. If ctdbd
does exit early then it will take CTDB_STARTUP_TIMEOUT (default 10)
seconds before the wrapper fails. That's not too bad...
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Regression tests doing an SMB2_find followed by
a set delete on close and then close on a directory.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13118
Signed-off-by: Ralph Wuerthner <ralph.wuerthner@de.ibm.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Sun Nov 5 12:31:12 CET 2017 on sn-devel-144
Both dptr_create() and can_delete_directory_fsp() are calling OpenDir_fsp()
to get a directory handle. This causes an issue when delete-on-close is
set after smb2_find because both directory handle instances share the same
underlying file descriptor. In addition the SMB_ASSERT() in destructor
smb_Dir_destructor() gets triggered.
To avoid this use OpenDir() instead of OpenDir_fsp().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13118
Signed-off-by: Ralph Wuerthner <ralph.wuerthner@de.ibm.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Fri Nov 3 19:05:05 CET 2017 on sn-devel-144
The server name in the AS-REQ is unprotected, sadly.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12894
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Nov 2 07:16:50 CET 2017 on sn-devel-144
Bug: https://bugzilla.samba.org/show_bug.cgi?id=6133
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Nov 2 03:16:11 CET 2017 on sn-devel-144
Add .gitlab-ci.yml file, and define build jobs in groups.
Once gitlab-runner set up, builds and tests can be triggered
automatically in parallel when push to gitlab.
Also, with gitlab-runner autoscale mode, build instances
will be created and removed on demand.
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue Oct 31 15:32:16 CET 2017 on sn-devel-144
Since smbc_setX calls now handle string allocation using malloc
themselves (since commit 2d41b1ab78) we
indeed no longer need to provide malloced strings (the extra malloc
already got removed earlier).
Guenther
Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Mon Oct 30 21:09:14 CET 2017 on sn-devel-144
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Autobuild-User(master): Garming Sam <garming@samba.org>
Autobuild-Date(master): Mon Oct 30 04:16:42 CET 2017 on sn-devel-144
Now both routines avoid the escape/unescape implicit in ldb_dn_add_child_fmt()
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This will allow it to be used in common with replmd_conflict_dn()
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This makes it clearer that we are just replacing the RDN and ensures we do not
somehow create multiple components inside ldb_dn_add_child_fmt().
We also avoid an escape/un-escape round-trip.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
The reality is a bit more complex than this comment indicates. We should never
suggest anywhere that we can connect to domains that we don't have a direct
trust account to. For the member case, it's "our" domain, and for the DC case,
it's the direct trusts. Everything else is pure luck.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Oct 28 00:31:58 CEST 2017 on sn-devel-144
