2 Unix SMB/CIFS implementation.
3 Lease utility functions
5 Copyright (C) Jeremy Allison 2017.
6 Copyright (C) Stefan (metze) Metzmacher 2017.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #define DBGC_CLASS DBGC_LOCKING
24 #include "../librpc/gen_ndr/open_files.h"
25 #include "locking/proto.h"
26 #include "smbd/globals.h"
28 uint32_t map_oplock_to_lease_type(uint16_t op_type)
34 case BATCH_OPLOCK|EXCLUSIVE_OPLOCK:
35 ret = SMB2_LEASE_READ|SMB2_LEASE_WRITE|SMB2_LEASE_HANDLE;
37 case EXCLUSIVE_OPLOCK:
38 ret = SMB2_LEASE_READ|SMB2_LEASE_WRITE;
41 ret = SMB2_LEASE_READ;
44 ret = SMB2_LEASE_NONE;
50 uint32_t fsp_lease_type(const struct files_struct *fsp)
52 if (fsp->oplock_type == LEASE_OPLOCK) {
53 return fsp->lease->lease.lease_state;
55 return map_oplock_to_lease_type(fsp->oplock_type);
58 uint32_t lease_type_is_exclusive(uint32_t lease_type)
60 if ((lease_type & (SMB2_LEASE_READ | SMB2_LEASE_WRITE)) ==
61 (SMB2_LEASE_READ | SMB2_LEASE_WRITE)) {
68 bool fsp_lease_type_is_exclusive(const struct files_struct *fsp)
70 uint32_t lease_type = fsp_lease_type(fsp);
72 return lease_type_is_exclusive(lease_type);
75 const struct GUID *fsp_client_guid(const files_struct *fsp)
77 return &fsp->conn->sconn->client->connections->smb2.client.guid;