LCOV - code coverage report
Current view: top level - source3/locking - leases_util.c (source / functions) Hit Total Coverage
Test: coverage report for abartlet/fix-coverage dd10fb34 Lines: 32 34 94.1 %
Date: 2021-09-23 10:06:22 Functions: 5 5 100.0 %

          Line data    Source code
       1             : /*
       2             :    Unix SMB/CIFS implementation.
       3             :    Lease utility functions
       4             : 
       5             :    Copyright (C) Jeremy Allison 2017.
       6             :    Copyright (C) Stefan (metze) Metzmacher 2017.
       7             : 
       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.
      12             : 
      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.
      17             : 
      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/>.
      20             : */
      21             : 
      22             : #define DBGC_CLASS DBGC_LOCKING
      23             : #include "includes.h"
      24             : #include "../librpc/gen_ndr/open_files.h"
      25             : #include "locking/proto.h"
      26             : #include "smbd/globals.h"
      27             : #include "locking/leases_db.h"
      28             : 
      29      766857 : uint32_t map_oplock_to_lease_type(uint16_t op_type)
      30             : {
      31             :         uint32_t ret;
      32             : 
      33      766077 :         switch(op_type) {
      34        2743 :         case BATCH_OPLOCK:
      35             :         case BATCH_OPLOCK|EXCLUSIVE_OPLOCK:
      36        2743 :                 ret = SMB2_LEASE_READ|SMB2_LEASE_WRITE|SMB2_LEASE_HANDLE;
      37        2743 :                 break;
      38         464 :         case EXCLUSIVE_OPLOCK:
      39         464 :                 ret = SMB2_LEASE_READ|SMB2_LEASE_WRITE;
      40         464 :                 break;
      41         640 :         case LEVEL_II_OPLOCK:
      42         640 :                 ret = SMB2_LEASE_READ;
      43         640 :                 break;
      44      762230 :         default:
      45      762230 :                 ret = SMB2_LEASE_NONE;
      46      762230 :                 break;
      47             :         }
      48      766857 :         return ret;
      49             : }
      50             : 
      51      363068 : uint32_t fsp_lease_type(struct files_struct *fsp)
      52             : {
      53             :         NTSTATUS status;
      54             : 
      55      363068 :         if (fsp->oplock_type != LEASE_OPLOCK) {
      56      362342 :                 uint32_t type = map_oplock_to_lease_type(fsp->oplock_type);
      57      362342 :                 return type;
      58             :         }
      59             : 
      60        1452 :         status = leases_db_get_current_state(
      61             :                 fsp_client_guid(fsp),
      62         726 :                 &fsp->lease->lease.lease_key,
      63             :                 &fsp->leases_db_seqnum,
      64             :                 &fsp->lease_type);
      65         726 :         if (!NT_STATUS_IS_OK(status)) {
      66           0 :                 DBG_DEBUG("leases_db_get_current_state failed: %s\n",
      67             :                           nt_errstr(status));
      68           0 :                 fsp->lease_type = 0; /* no lease */
      69             :         }
      70             : 
      71         726 :         return fsp->lease_type;
      72             : }
      73             : 
      74      175869 : static uint32_t lease_type_is_exclusive(uint32_t lease_type)
      75             : {
      76      175985 :         if ((lease_type & (SMB2_LEASE_READ | SMB2_LEASE_WRITE)) ==
      77             :             (SMB2_LEASE_READ | SMB2_LEASE_WRITE)) {
      78         178 :                 return true;
      79             :         }
      80             : 
      81      175691 :         return false;
      82             : }
      83             : 
      84      175985 : bool fsp_lease_type_is_exclusive(struct files_struct *fsp)
      85             : {
      86      175985 :         uint32_t lease_type = fsp_lease_type(fsp);
      87             : 
      88      175985 :         return lease_type_is_exclusive(lease_type);
      89             : }
      90             : 
      91        5338 : const struct GUID *fsp_client_guid(const files_struct *fsp)
      92             : {
      93        5338 :         return &fsp->conn->sconn->client->global->client_guid;
      94             : }

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