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Guenther
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down to NEXT-> before initializing. This allows us to
do cleanup (by calling DISCONNECT) if initialization
fails. Also fix vfs_acl_xattr which was failing to
call the NEXT connect function.
Jeremy.
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Office 2003.
Confirmation from reporter that this fixes the issue in master on ext3/ext4.
Back-ports to follow.
Jeremy.
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SMB_VFS_CHFLAGS isn't actually getting the smb_filename struct for now
since it only operates on the basefile. This is the strategy for all
path-based operations that will never actually operate on a stream.
By clarifying the meaning of path based operations that don't take an
smb_filename struct, modules that implement streams such as vfs_onefs
no longer need to implement SMB_VFS_CHFLAGS to ensure it's only called
on the base_name.
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This was a little messy because of all of the vfs modules I had to
touch. Most of them were pretty straight forward, but the streams
modules required a little attention to handle smb_filename. Since the
use of smb_filename enables the vfs modules to access the raw,
over-the-wire stream, a little bit of the handling that was being done
by split_ntfs_stream_name has now been shifted into the individual
stream modules. It may be a little more code, but overall it gives
more flexibility to the streams modules, while also allowing correct
stream handling.
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onefs_get_real_filename needs to demangle the filename before doing
the case-insensitive estat
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The OneFS Samba implementation of change notify is modeled after the
usage of Linux's inotify kernel subsystem. A single call is made
into the onefs.so VFS module to initialize kernel tracking of certain
file change events. When these events occur a kernel notification is
sent to smbd and the notification event is translated and given to the
general Samba Change Notify layer through a callback function.
The most difficult aspect is converting an SMB CompletionFilter to
a matching ifs_event mask, and then back to an appropriate change
notify action. Currently, not all possible cases are handled by the
this module, but the most prevalent ones, which are tested by
smbtorture, are implemented.
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* Much of the beginning should look familiar, as I re-used the OneFS oplock
callback record concept. This was necessary to keep our own state around - it
really only consists of a lock state, per asynchronous lock that is currently
unsatisfied. The onefs_cbrl_callback_records map to BLRs by the id.
* There are 4 states an async lock can be in. NONE means there is no async
currently out for the lock, as opposed to ASYNC. DONE means we've locked
*every* lock (keep in mind a request can ask for multiple locks at a time.)
ERROR is an error.
* onefs_cbrl_async_success: The lock_num is incremented, and the state changed,
so that when process_blocking_lock_queue is run, we will try the *next* lock,
rather than the same one again.
* onefs_brl_lock_windows() has some complicated logic:
* We do a no-op if we're passed a BLR and the matching state is ASYNC --
this means Samba is trying to get the same lock twice, and we just need
to wait longer, so we return an error.
* PENDING lock calls happen when the lock is being queued on the BLQ -- we
do async in this case.
* We also do async in the case that we're passed a BLR, but the lock is not
pending. This is an async lock being probed by process_blocking_lock_queue.
* We do a sync lock for any normal first request of a lock.
* Failure is returned, but it doesn't go to the client unless the lock has
actually timed out.
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OneFS provides the bulk directory enumeration syscall readdirplus(). This
syscall has the same semantics as the NFSv3 READDIRPLUS command, returning
a batch of directory entries with prefetched stat information via one
syscall.
This commit wraps the readdirplus() call in the existing POSIX
readdir/seekdir VFS interface. By default a batch of 128 directory entries
are optimistically read from the kernel into a global cache, and fed to
iterative calls of VFS_OP_READDIR.
The global buffers could be avoided in the future by hanging connection
specific buffers off the conn struct.
Added new parameter "onefs:use readdirplus" which toggles usage of this
code on or off.
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This checkin enables setting arbitrary timestamps on files matching
the pattern stored in smb.conf. This was a customer request for a
specific workflow.
Changes include:
1) configuration state machine to avoid tons of string comparisons on
each and every stat.
2) Code to adjust post-stat() times to match time now, or sloptime +
time now.
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This is the first pass at extending the onefs vfs module to support
the CIFS-specific enhancements available on OneFS. Most of this patch
is massaging the sama open path to work with ifs_createfile.
ifs_createfile is a CIFS-specific syscall for opening/files and
directories. It adds support for:
- Full in-kernel access checks using a windows access_mask
- Cluster-coherent share mode locks
- Cluster-coherent oplocks
- Streams
- Setting security descriptors at create time
- Setting dos_attributes at create time
This patch does not implement the samba side of the streams support or
oplocks support. Tests that expect oplocks to be granted or streams
to be supported will fail. This will be remedied in upcoming patches.
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Add to the OneFS VFS module, support for NTFS ACLs through the calls:
SMB_VFS_FGET_NT_ACL()
SMB_VFS_GET_NT_ACL()
SMB_VFS_FSET_NT_ACL()
Also create several new onefs specific smb.conf parameters in onefs.h
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Also set configure to autodetect OneFS OS and build this VFS module.
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