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When multiple aio requests finish simultaneously, this saves a few syscalls
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): Thu Mar 27 08:05:46 CET 2014 on sn-devel-104
This makes use of C99 dynamic arrays. In this performance-sensitive code, I
would like to avoid malloc/free, and I think 15 years after the standard we
might be able to use this feature. Alternatively, we could use the "results"
memory area and store the jobids in the upper range, playing some cast-tricks.
Should work as well.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The current FSCTL_GET_SHADOW_COPY_DATA/FSCTL_SRV_ENUMERATE_SNAPSHOTS
handler squashes all non-ENOSYS errors into an NT_STATUS_UNSUCCESSFUL
response.
This commit ensures that all errors are propagated up to the client, to
aid debugging.
The Windows Explorer "Previous Versions" dialogue doesn't appear to
distinguish between error codes. It displays "There are no previous
versions available".
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Feb 27 22:42:50 CET 2014 on sn-devel-104
We have to ship 64 bytes, and we have to initialize the whole thing.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Signed-off-by: Christian Ambach <ambi@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Sat Dec 7 14:20:43 CET 2013 on sn-devel-104
The VFS interfaces are sychronous, as the operations only modify
meta-data.
These hooks are dependent on support for transparent compression by the
underlying filesystem - vfs_default returns INVALID_DEVICE_REQUEST.
Support for other filesystems providing transparent comression, such as
Btrfs and ZFS, can be added in future.
The get_compression function takes fsp and smb_fname arguments. The
smb_fname argument is needed due to the current dosmode() code-path.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
labels_data_count already accounts for the unicode null character at the
end of the array. There is no need in adding space for it again.
Signed-off-by: Christof Schmitt <christof.schmitt@us.ibm.com>
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): Tue Aug 6 04:03:17 CEST 2013 on sn-devel-104
Otherwise num_volumes and the end marker can return uninitialized data
to the client.
Signed-off-by: Christof Schmitt <christof.schmitt@us.ibm.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Simo Sorce <idra@samba.org>
Tests show significant speedup in directory listings
by using fstatat instead of a full pathname walk.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Mon Jun 10 20:14:12 CEST 2013 on sn-devel-104
Eliminates the need to hold locks across the
entire lifetime of the call.
Next commit will remove these.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
copy_chunk copies n bytes from a source file at a specific offset to a
destination file at a given offset. This interface will be used in
handling smb2 FSCTL_SRV_COPYCHUNK ioctl requests.
Use a pread/pwrite loop in vfs_default, so that requests referring to
the same src and dest file are possible.
Provide send and receive hooks for copy chunk VFS interface, allowing
asynchronous behaviour.
Check whether the request source offset + length exceeds the current
size. Return STATUS_INVALID_VIEW_SIZE under such a condition, matching
Windows server behaviour.
Reviewed by: Jeremy Allison <jra@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Mon Nov 5 19:01:13 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 changes from allocation on NULL to allocation on the supplied
memory context.
Currently that supplied context is talloc_tos() at the the final consumer of
the ACL.
Andrew Bartlett
We only grant durable handles for CIFS/SMB2 only access,
that means "kernel oplocks", "kernel share modes" and "posix locking"
need to be set to "no".
For now we also don't grant durable handles if delete on close
is active on the handle.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Pair-Programmed-With: Volker Lendecke <vl@samba.org>
We no longer do struct smb_acl_t manipuations via the VFS layer,
which is now reduced to handling the get/set functions.
The only backend that implemented these functions (aside from audit)
was the vfs_default module calling the sys_acl code. The various ACL
implementation modules either worked on the fully initilaised
smb_acl_t object or on NT ACLs.
This not only makes the operation of the posix ACL code more efficient
(as allocation and free is not put via the VFS), it makes it easier to
test and removes the fantasy that a module could safely redefine this
structure or the behaviour here.
The smb_acls.idl now defines the structure, and it is now allocated
with talloc.
These operations were originally added to the VFS in commit
3bb219161a.
Andrew Bartlett
They use talloc_tos() internally: hoist that up to the callers, some
of whom don't want to us talloc_tos().
A simple patch, but hits a lot of files.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Based on a fix from "Etienne Dechamps " <e-t172@akegroup.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Jun 21 21:53:58 CEST 2012 on sn-devel-104
Note: it is actually wrong to access the fsp->fnum at all here,
since the fnum is part of the smb layer that should not be used
in the vfs layer. But this is subject be separated more cleanly
in later commits. This change only unifies the logging of fsp->fnum.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Jun 12 02:26:31 CEST 2012 on sn-devel-104
On platforms that don't have an RT signal space, signal initialization
fails. aio_fork and aio_pthread don't need the signal, so this would
block them from running as well.
on a 32-bit system and defined as a long, then inside vfswrap_get_alloc_size()
we cast to a uint64_t. This sign-extends when converting to unsigned,
so if the high bit of st_ex_blksize is set we return insane values to clients.
Now that we always require a 64 bit off_t, we no longer need SMB_OFF_T.
Andrew Bartlett
Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Fri Apr 6 01:47:43 CEST 2012 on sn-devel-104
