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Will be used to trigger Directory Lease breaks from notify_fname().
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Checks for Directory Lease breaks on the parent directory of smb_fname. Gets a
sharemode lock on the locking.tdb record of the directory, hence it mustn't be
called if the caller still has another sharmode lock.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
notify_fname() for NOTIFY_ACTION_DIRLEASE_BREAK will soon need the lease of the
current open and to implement "MS-FSA 2.1.4.12 Algorithm to Check for an Oplock
Break" with flags=PARENT_OBJECT.
No change in behaviour for now, all callers pass lease=NULL;
Also change path arg to struct smb_filename.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This will be a common pattern in the upcoming code dealing with Directory Lease
breaks: when checking for Directory Lease breaks on the parent directory, we
take the sharemode lock on the parent and hence by then must have dropped the
sharemode lock on the object that performs the Directory Lease break check. That
functionality will be later added to notify_fname().
This means the notification will be sent a wee bit later, but that's something
the change notification protocol has to live with anyway.
For Directory Leases the sequence to check for Directory Lease breaks is to call
MS-FSA 2.1.4.12 "Algorithm to Check for an Oplock Break" with
flags=PARENT_OBJECT at the end of each relevant operation, eg creating a file
asf, when processing of the operation that will call 2.1.4.12 is already
completed.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Check for open files recursively when renaming a directory and wait for handle
lease breaks.
As delay_for_handle_lease_break_send() does the same check as
have_file_open_below(), remove have_file_open_below() from can_rename() so it is
not called twice for SMB2 renames, and add calls to have_file_open_below() to the
SMB1 entry rename entry points.
This is a bit ugly, but I don't see any other good way of doing this.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Let have_file_open_below() be the single function to check if
"have_file_open_below" and let it check internally whether to just search the
fsp list in the process or traversing locking.tdb based on the setting of
"strict rename".
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
In the future not all callers will have a share_mode_lock around.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
All existing callers use share_entry_forall_read, so no change in behaviour.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Gives the callback function more control about when of a locking.tdb
traverse is stopped. If the callback function returns:
0 => continue traverse
1 => stop loop over share_mode_entries, but continue share_mode_data traverse
-1 => stop whole share_mode_data traverse
All existing callers of share_entry_forall() either return 0 or -1 from their
callback functions, so no change in behaviour.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
All existing callers use share_mode_forall_read(), so no change in behaviour.
Note: doing the indirection via the function pointers "ro_fn" and "rw_fn" in a
single state "struct share_mode_forall_state" avoids duplicating
share_mode_forall_dump_fn() and share_mode_forall_fn() and has the benefit of
code sharing of these functions for both read-only and read-write cases.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Gives callers the option to modify data if needed. All existing
callers use g_lock_locks_read(), so no change in behaviour.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This ensures common cleanup code via
smbXsrv_connection_shutdown_send() ->
-> smbXsrv_session_disconnect_xconn()
-> smbXsrv_session_remove_channel()
-> smb2srv_session_shutdown_send()
is used if the last (only) connection goes away as well. In the future this
should be implemented for the
xconn->has_cluster_movable_ip
case.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Add a version of delay_rename_for_lease_break() that is usable in other places
where we have to check for handle lease breaks. No change in behaviour.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
in_input_buffer just points into the smbd_smb2_request iovecs data which is
guarenteed to have the same lifetime as the deferred rename processing, no need
to make a copy.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
