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This is the final step in implementing the needed macOS semantics on the
FinderInfo stream: as long as the client hasn't written a non-zero
FinderInfo blob to the stream, there mustn't be a visible filesystem
entry for other openers.
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>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Nov 1 01:14:23 CET 2018 on sn-devel-144
macOS SMB server doesn't filter out the FinderInfo stream if it has
delete-on-close set.
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>
fruit_streaminfo currently filters out the FinderInfo stream is
delete-on-close is set. We set it here internally, but the client may
also set it over SMB. Turns out that the macOS SMB server does NOT
filter out FinderInfo stream with delete-on-close set, so we must change
the way filtering is done in fruit_streaminfo.
Filtering is now done based on the FinderInfo stream being 0-bytes large which
is why I'm adding the ftruncate here.
No idea why the tests that check the filtering passed the commits
leading up to this one, but if you revert this commit after applying the
whole patchset, the "delete AFP_AfpInfo by writing all 0" test will fail.
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>
delete_invalid_meta_stream() is meant to guard against random data being
present in the FinderInfo stream. If the stream size is 0, it's likely a
freshly created stream where no data has been written to yet, so don't
delete it.
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>
This will be required to support using fake fds for the FinderInfo
metadata stream.
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>
As we'll start returning fake fds in open shortly, we can't rely on the
next module to calculat correct inode numbers for streams and must take
over that responsibility.
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>
If the read on the stream fails we may have hit a handle on a just
created stream (fio->created=true) with no data written yet.
If that's the case return an empty initialized FinderInfo blob.
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>
This avoid creating files or blobs in our streams backend when a client
creates a stream but hasn't written anything yet. This is the only sane
way to implement the following semantics:
* client 1: create stream "file:foo"
* client 2: open stream "file:foo"
The second operation of client 2 must fail with NT_STATUS_NOT_FOUND.
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>
Not used for now, that comes in the subsequent commits.
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>
fio->created tracks whether a create created a stream.
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>
Directly unlinking a file with open handles is not good, don't do it.
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>
Aids in debugging dev/ino mismatch failures in open_file_ntcreate.
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>
First step in achieving macOS compliant behaviour wrt to empty streams:
- hide empty streams in streaminfo
- prevent opens of empty streams
This means that we may carry 0-byte sized streams in our streams
backend, but this shouldn't really hurt.
The previous attempt of deleting the streams when an SMB setinfo eof to
0 request came in, turned out be a road into desaster.
We could set delete-on-close on the stream, but that means we'd have to
check for it for every write on a stream and checking the
delete-on-close bits requires fetching the locking.tdb record, so this
is expensive and I'd like to avoid that overhead.
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>
Ensure any non MS compliant protocol behaviour targetted at supporting
macOS clients are only effective if the client negotiated AAPL.
Currently this only guards the resource fork which only macOS client are
going to use, but subsequent commits add more this at this place.
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>
This caused all sort of havoc with subsequent SMB request that acted on
the handle of the then deleted backend storage (file or blob, depending
on the used streams module).
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>
macOS SMB server versions supports this since 10.12, so we adapt our
behaviour.
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>
Turns out that there exist AppleDouble files with an extended FinderInfo
entry that includes the xattr marshall buffer, but the count of xattrs
in the buffer is just zero.
We do want to discard this extended FinderInfo entry and convert it to a
simple fixed size FinderInfo entry, so remove the check.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Currently the whole conversion is skipped if the FinderInfo entry in the
AppleDouble file is of the default size (ie not containing xattrs).
That also means we never converted FinderInfo from the AppleDouble file
to stream format. This change finally fixes this.
Note that this keeps failing with streams_depot, much like the existing
known-fail of "samba3.vfs.fruit streams_depot.OS X AppleDouble file
conversion". Fixing the conversion to work with vfs_streams_depot is a
task for another day.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
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): Thu Oct 11 01:30:13 CEST 2018 on sn-devel-144
Call ad_convert_truncate() based on whether the previous call
ad_convert_xattr() returned converted_xattr=true.
Upcoming fixes for a different Samba bug (#13642) will hook into calling
ad_convert_truncate() in other cases, this also prepares for that.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Used to let the caller know if a conversion has been done. Currently not
used in the caller, that comes next.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This ensures that the function only acts on AppleDouble files created by
macOS and not AppleDouble files created by us that are already in the
correct format (only using the Resource Fork).
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
ad_convert_xattr() is the place that triggers the need to move the
resource fork, so it should also call ad_convert_move_reso().
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Another step in simplifying ad_convert() itself. It means that we may
write to disk twice, but is only ever done once per AppleDouble file.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This may mean that we mmap twice when we convert an AppleDouble file,
but this is the only sane way to cleanly modularize ad_convert().
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We really want the fixed size offset here, not a calculated one. Note
that "ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI" is equal to
ADEDOFF_RFORK_DOT_UND.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We really want the fixed size offset here, not a calculated one. Note
that "ad_getentryoff(ad, ADEID_RFORK)" is equal to ADEDOFF_RFORK_DOT_UND
in this case.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This may look a little ill-advised as this increases line count, but
the goal here is modularizing ad_convert() itself and making it as slick
as possible helps achieving that goal.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The final step in consolidating all conversion related work in
ad_convert(). No change in behaviour.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
ad_convert() modified it, so let ad_convert() also save it to disk. No
change in behaviour.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Use the struct adouble member ad_fd instead of passing it as an
argument. Who did that in the first place? :)
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Subsequent commits will move the mmap() into the subfunctions. This
change just prepares for that.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
ad_convert_xattr() does the conversion of the xattr data in the
AppleDouble file, so we should update it's size there and should not
defer it to the caller.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This can later be used to distinguish between macOS created AppleDouble
files and AppleDouble files created by Samba or Netatalk.
macOS: "Mac OS X "
Samba: "Netatalk "
Netatalk: "Netatalk "
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Thanks to the recent addition of ad_convert_xattr() we now correctly
handle this case.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13649
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
clang does not recognize "smb_panic" as an "exit()" equivalent
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The original fix for bug 13441 was missing a check that verifies that
fruit_ftruncate() is actually called on a stream.
Follow-up to
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13441
Pair-Programmed-With: Volker Lendecke <vl@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Aug 23 15:28:48 CEST 2018 on sn-devel-144
Fix a panic if fruit_access_check detects a locking conflict.
do_lock() returns a valid br_lck even in case of a locking conflict.
Not free'ing it leads to a invalid lock order panic later, because
"br_lck" corresponds to a dbwrap lock on brlock.tdb.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13584
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Reviewed-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Wed Jun 13 16:29:48 CEST 2018 on sn-devel-144
macOS SMB server uses xattrs as storage backend for streams, directly
exposing xattr get/set characteristics. Setting EOF on a stream to 0
just deletes the xattr as macOS doesn't support 0-byte sized xattrs.
Note that this does not apply to the AFP_AfpInfo and AFP_Resource
streams, they have even stranger semantics and we have other tests
for those.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13441
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 May 30 02:34:29 CEST 2018 on sn-devel-144
