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https://bugzilla.samba.org/show_bug.cgi?id=13725
We cannot always rely on vfs_default to close the fake fds. This mostly is
relevant when used with another non-local VFS filesystem module such as
gluster.
Guenther
Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Dec 20 07:18:20 CET 2018 on sn-devel-144
Since a long time the modules's open function happily returned success
when opening a non existent stream without O_CREAT.
This change fixes it to return -1 and errno=ENOATTR if
o get_ea_value() returns NT_STATUS_NOT_FOUND (eg mapped from
getxattr() = -1, errno=ENOATTR) and
o flags doesn't contain O_CREAT
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13646
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Wed May 2 01:06:28 CEST 2018 on sn-devel-144
When returning the stat struct for an xattr stream,
we originally base the st_ex_mode field on the value
from the base file containing the xattr. If the base
file is a directory, it will have S_IFDIR set in st_ex_mode,
but streams can never be directories, they must be reported
as regular files.
The original code OR'ed in S_IFREG, but neglected to
AND out S_IFDIR.
Note this is not a complete to fix bug 13380 as
it doesn't fix the generic case with all streams
modules. See later fix and regression test.
Found in real-world use case by Andrew Walker <awalker@ixsystems.com>.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13380
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Böhme <slow@samba.org>
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon Dec 18 13:32:00 CET 2017 on sn-devel-144
VFS_ADD_FSP_EXTENSION() now returns a properly typed pointer.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Wed Dec 6 03:43:48 CET 2017 on sn-devel-144
This happens when vfs_streams_xattr is loaded, log level is set to 10
and the default stream of a file or directory is accessed. In that case
streams_xattr_open does not allocate the stream_io fsp extension. The
DBG_DEBUG message in streams_xattr_fstat tries to access the stream_io
before checking for a NULL value, resulting in the crash. Fix this by
moving the debug message after the check for a NULL pointer.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Thu Sep 14 10:58:12 CEST 2017 on sn-devel-144
Can be ignored (pass-through) in streams_xattr VFS module.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13003
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The final step in changing vfs_streams_xattr to not call open() on the
basefile anymore. Instead, we just return a fake file fd based on
dup'ing a pipe fd. Previous commits ensured all calls to VFS API
functions use pathname based versions to do their work.
This ensures we don't trigger kernel oplock breaks for client "open
stream" requests when needlessly opening the basefile.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12791
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Richard Sharpe <realrichardsharpe@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Implement all missing handle based VFS function. If the call is on a
named stream, implement the appropriate action for the VFS function, in
most cases a no-op.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12791
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Still in the process of changing all handle based operations to use path
based operations.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12791
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Richard Sharpe <realrichardsharpe@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
We don't really need an fd in this module, all calls to the VFS xattr
API can just use the name based versions.
This paves the way for removing the open of the basefile in
streams_xattr_open() in a later commit.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12791
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Richard Sharpe <realrichardsharpe@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
We stat the basefile so we leave valid stat info from the base file
behind, even though the xattr for the stream was not there.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12791
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Richard Sharpe <realrichardsharpe@gmail.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Jun 1 02:58:53 CEST 2017 on sn-devel-144
We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This is needed to support copy-chunk of streams. vfs_default issues
calls to async pread and pwrite (send/recv versions) since commit
60e45a2d25.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12787
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
Not currently used - no logic changes inside.
This will make it possible to pass down a long-lived talloc
context from the loading function for modules to use instead
of having them internally all use talloc_autofree_context()
which is a hidden global.
Updated all known module interface numbers, and added a
WHATSNEW.
Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Ralph Böhme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Apr 22 01:17:00 CEST 2017 on sn-devel-144
Using the SMB_VFS_OPEN leads to a recursion in the VFS that is hard to
follow and debug. It's called twice for the same fsp with two different
smb_fname's which makes it at least hard to debug, it may even be an
invalid usage.
Changing this here to use the NEXT function instead should have no
change in behaviour otherwise.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12565
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
In case an SMB_VFS_OPEN() on a stream basename fails with EISDIR, we
retry the open as O_RDONLY. The retry should be done with the
smb_fname_base as well.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12427
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
The base_fsp's fd is always -1 as it's closed after being openend in
create_file_unixpath().
Additionally in streams_xattr_open force using of SMB_VFS_FSETXATTR() by
sticking the just created fd into the fsp (and removing it afterwards).
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12591
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): Wed Feb 22 08:25:46 CET 2017 on sn-devel-144
If the open is changing directories, fsp->fsp_name->base_name
will be the full path from the share root, whilst
smb_fname will be relative to the $cwd.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12546
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Böhme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Feb 2 01:55:42 CET 2017 on sn-devel-144
Check the smb_filename->flags field, or req->posix_pathnames
instead, depending on what is available.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
Get it from parent/deriving smb_filename if present.
Use 0 (as usually this a Windows-style lookup) if
not.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
Prepare for changing vfs_streaminfo to do the same.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Mon Mar 7 21:12:56 CET 2016 on sn-devel-144
streams_xattr_get_name() fails to chop off the stream type in case
config->store_stream_type is false and the passed stream name contains a
stream type.
Eg when the passed in stream name is ":mystream:$DATA", but
config->store_stream_type is false, we must generate a xattr name of
"mystream" or "user.mystream".
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11466
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): Fri Oct 16 23:27:01 CEST 2015 on sn-devel-104
With vfs_fruit option "fruit:encoding = native" we're already converting
stream names that contain illegal NTFS characters from their on-the-wire
Unicode Private Range encoding to their native ASCII representation.
As as result the name of xattrs storing the streams (via
vfs_streams_xattr) may contain a colon, so we have to use strrchr_m()
instead of strchr_m() for matching the stream type suffix.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11278
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
The Linux fallocate syscall offers a mode parameter which can take the
following flags:
FALLOC_FL_KEEP_SIZE
FALLOC_FL_PUNCH_HOLE (since 2.6.38)
FALLOC_FL_COLLAPSE_RANGE (since 3.15)
FALLOC_FL_ZERO_RANGE (since 3.14)
The flags are not exclusive, e.g. FALLOC_FL_PUNCH_HOLE must be specified
alongside FALLOC_FL_KEEP_SIZE.
Samba currently takes a vfs_fallocate_mode enum parameter for the VFS
fallocate hook, taking either an EXTEND_SIZE or KEEP_SIZE value. This
commit changes the fallocate hook such that it accepts a uint32_t flags
parameter, in preparation for PUNCH_HOLE and ZERO_RANGE support.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Rewviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Dec 12 02:09:24 CET 2014 on sn-devel-104
Fix up the ceph, fruit, time_audit and streams_xattr modules to follow
the -1,errno convention for errors.
Reported by Jones <jones.kstw@gmail.com> who provided the
initial patch. This patch tested and confirmed working
by him as well.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: David Disseldorp <ddiss@suse.de>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Dec 8 02:59:43 CET 2014 on sn-devel-104
Only allow access to the stream type "$DATA". vfs_streams_depot does
this too and it fixes the failing test "smb2.streams.names".
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Nov 22 01:07:54 CET 2014 on sn-devel-104
Intitialize pointer to NULL, otherwise we talloc_free() an unitialized
pointer in the error code path.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We want to check with samba_private_attr_name() whether the xattr name
is a private one, unfortunately it flags xattrs that begin with the
default streams prefix as private. By only calling
samba_private_attr_name() in case the xattr does NOT begin with the
default prefix, we know that if it returns 'true' it definitely one of
our internal xattr like "user.DOSATTRIB".
This fixes a bug introduced in 634bcb09a0
that denied all access to valid stream xattrs.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Add module options that can be used to configure the stream prefix the
module uses (option "prefix", a string) and whether the stream type
"$DATA" is appended to the xattr name on disk (option
"store_stream_type", a boolean).
The default "prefix" is "user.DosStream" and the default for
"store_stream_type" is true, this gives unchanged default behaviour
when not specifying this option.
OS X SMB clients will send xattrs as named streams over the wire, by
setting the options to the following values
streams_xattr:prefix = user.
streams_xattr:store_stream_type = no
OS X xattrs will be stored on disk on the server with their unmodified
names and as such provide interoperability with other protocols like
AFP.
In order to prevent access to our internal Samba xattrs, check the
xattr name with the function samba_private_attr_name() made public by
the previous commit.
Signed-off-by: Ralph Boehme <rb@sernet.de>
Reviewed-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Fix bug : Bug 10429 - samba returns STATUS_OBJECT_NAME_NOT_FOUND when attempting to remove dangling symlink
https://bugzilla.samba.org/show_bug.cgi?id=10429
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Jeff Layton <jlayton@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Feb 8 00:01:16 CET 2014 on sn-devel-104
This changes (again...) our system md5 detection to cope with how
OpenIndiana does md5. I'm becoming increasingly convinced this isn't
worth our while (we should have just done samba_md5...), but for now
this change seems to work on FreeBSD, OpenIndiana and Linux with
libbsd.
This needs us to rename struct MD5Context -> MD5_CTX, but we provide a
config.h define to rename the type bad if MD5_CTX does not exist (it does
however exist in the md5.h from libbsd).
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): Wed Jun 19 21:32:36 CEST 2013 on sn-devel-104
The create disposition FILE_OVERWRITE_IF is mapped to the flags
O_CREAT|O_TRUNC. In vfs_streams_xattr, this triggers two calls to
SMB_VFS_SETXATTR. The second can fail if O_EXCL is also set, resulting
in an unnecessary error.
Merge the identical code to handle O_CREAT and O_TRUNC to avoid setting
an empty attribute twice. Also add the flags parameter to the debug
message.
Signed-off-by: Christof Schmitt <christof.schmitt@us.ibm.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Christof Schmitt <christof.schmitt@us.ibm.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Richard Sharpe <rsharpe@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Jun 13 01:43:18 CEST 2013 on sn-devel-104
