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The only two callers that pass a root_dir_fid != 0 are reply_ntcreate_and_X()
and call_nt_transact_create(). By moving root_dir_fid processing outside of
SMB_VFS_CREATE_FILE() we can avoid rewriting get_relative_fid_filename() to work
with *AT semantics and dirfsps.
Bonus points: the previous code in both functions passed fname to
filename_convert() which can't really have worked as it is relative to
root_dir_fid so filename_convert() will not be able to stat() the relative path
and it's components.
The only test I can find that uses a root dir_fid is raw.samba3rootdirfid and
that uses a handle on the share root which will work.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14380
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
raw.samba3rootdirfid tests with the share root directory as root_dir_fid handle,
that doesn't cover the case where the relative name has more then one path
component. It only works because in unix_convert() we run into the creating file
optimasation.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14380
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
On bad name conversion, exit the directory listing with an error, but leave the
connection intact. We were already checking for finfo->name == NULL here,
but were ignoring it and not reporting an error.
Remove the knownfail.d/bad_iconv file as we now
behave the same across CORE/NT1/SMB2.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14374
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue May 12 21:32:44 UTC 2020 on sn-devel-184
SMB2 and NT1 fail this, CORE already returns NT_STATUS_INVALID_NETWORK_RESPONSE
on bad conversion.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14374
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
We need to be prepared for short writes from the kernel depending on
the state of the page cache.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We need to be prepared for short reads from the kernel depending on
the state of the page cache. Windows and Mac clients don't
expect short reads for files, so we need to retry ourself.
For the future we may be able to play with some io_uring flags
in order to avoid the retries in userspace, but for now we just fix
the data corruption bug...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We should never get more acked than we asked for.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We should never get back more than we asked for.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This can be reused when we add handling for short writes.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This can be reused when we add handling for short reads.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Instead we remember if recursion was triggered and jump to
the start of the function again from the end.
This should make it safe to be called from the completion_fn().
This is hideously complex stuff, so document the hell
out of it.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This makes the follow up commits easier as we don't have to care
about overflows.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This makes the follow up commits easier as we don't have to care
about overflows.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We should do that as early as possible and that's in
vfs_io_uring_fsync_completion().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We should do that as early as possible and that's in
vfs_io_uring_pwrite_completion().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We should do that as early as possible and that's in
vfs_io_uring_pread_completion().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We'll need to add more logic than a simple _tevent_req_done()
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We don't need a direct pointer to the state...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Note that as sys_pwrite_full() deals with the EINTR case
we can remove the do {} while loop here.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Note that as sys_pread_full() deals with the EINTR case
we can remove the do {} while loop here.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
I checked all callers of SMB_VFS_PWRITE[_SEND](),
all callers of SMB_VFS_PREAD[_SEND]() and also
places where we append to the file and allocate
more space.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
These implement the SMB2 visible behavior of the [MS-FSA]
2.1.5.2 Server Requests a Read and 2.1.5.3 Server Requests a Write
constraints. Note that offset < 0 is not allowed over SMB.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
They should never touch the SMB_VFS layer
and they never trigger an DISK_FULL error.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Writes with a length of 0 are allowed.
The readfile related check we had before was not really useful
as min_dyn_len can only every be 0 or 1 (and for SMB2_OP_WRITE it's
always 1). So we checked
if (unread_bytes > 0) {
if (unread_bytes < 1) {
return error;
}
}
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14361
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This is needed to prime the logic in share_mode_flags_restrict() for the
following scenario:
* (First) CREATE on a file with FILE_SHARE_NONE and
access_mask=FILE_READ_ATTRIBUTES (a stat-open).
* share_mode_flags_restrict() gets called with
share_mode_flags_restrict(flags=0,
access_mask=0x80,
share_mode=0,
lease_type=UINT32_MAX)
and returns a value where none of the FILE_SHARE_* flags is set.
As a result share_mode_data.flags doesn't reflect the share-modes in effect.
This doesn't change any current visible behaviour outside of open_mode_check(),
but it avoids calling share_mode_forall_entries() in open_mode_check_fn().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14375
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue May 12 19:52:48 UTC 2020 on sn-devel-184
... with many thanks to an enthusiastic Samba user from Poland for helping to
track this down.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14375
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
The next commit adds more users of conflicting_access.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14375
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
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 May 7 21:04:59 UTC 2020 on sn-devel-184
