lib/util/capability.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Andrew Tridgell 1992-1998
   5    Copyright (C) Jeremy Allison 1998-2002
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 /**
  22  * @file
  23  * @brief Capabilities functions
  24  **/
  25
  26 /*
  27   capabilities fns - will be needed when we enable kernel oplocks
  28 */
  29
  30 #include "includes.h"
  31 #include "system/network.h"
  32 #include "system/wait.h"
  33 #include "system/filesys.h"
  34
  35
  36 #if defined(HAVE_IRIX_SPECIFIC_CAPABILITIES)
  37 /**************************************************************************
  38  Try and abstract process capabilities (for systems that have them).
  39 ****************************************************************************/
  40 static bool set_process_capability( uint32_t cap_flag, bool enable )
  41 {
  42         if(cap_flag == KERNEL_OPLOCK_CAPABILITY) {
  43                 cap_t cap = cap_get_proc();
  44
  45                 if (cap == NULL) {
  46                         DEBUG(0,("set_process_capability: cap_get_proc failed. Error was %s\n",
  47                                 strerror(errno)));
  48                         return false;
  49                 }
  50
  51                 if(enable)
  52                         cap->cap_effective |= CAP_NETWORK_MGT;
  53                 else
  54                         cap->cap_effective &= ~CAP_NETWORK_MGT;
  55
  56                 if (cap_set_proc(cap) == -1) {
  57                         DEBUG(0,("set_process_capability: cap_set_proc failed. Error was %s\n",
  58                                 strerror(errno)));
  59                         cap_free(cap);
  60                         return false;
  61                 }
  62
  63                 cap_free(cap);
  64
  65                 DEBUG(10,("set_process_capability: Set KERNEL_OPLOCK_CAPABILITY.\n"));
  66         }
  67         return true;
  68 }
  69
  70 /**************************************************************************
  71  Try and abstract inherited process capabilities (for systems that have them).
  72 ****************************************************************************/
  73
  74 static bool set_inherited_process_capability( uint32_t cap_flag, bool enable )
  75 {
  76         if(cap_flag == KERNEL_OPLOCK_CAPABILITY) {
  77                 cap_t cap = cap_get_proc();
  78
  79                 if (cap == NULL) {
  80                         DEBUG(0,("set_inherited_process_capability: cap_get_proc failed. Error was %s\n",
  81                                 strerror(errno)));
  82                         return false;
  83                 }
  84
  85                 if(enable)
  86                         cap->cap_inheritable |= CAP_NETWORK_MGT;
  87                 else
  88                         cap->cap_inheritable &= ~CAP_NETWORK_MGT;
  89
  90                 if (cap_set_proc(cap) == -1) {
  91                         DEBUG(0,("set_inherited_process_capability: cap_set_proc failed. Error was %s\n",
  92                                 strerror(errno)));
  93                         cap_free(cap);
  94                         return false;
  95                 }
  96
  97                 cap_free(cap);
  98
  99                 DEBUG(10,("set_inherited_process_capability: Set KERNEL_OPLOCK_CAPABILITY.\n"));
 100         }
 101         return true;
 102 }
 103 #endif