ctdb/server/ctdb_config.c

   1 /*
   2    CTDB daemon config handling
   3
   4    Copyright (C) Martin Schwenke  2018
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "replace.h"
  21
  22 #include "lib/util/debug.h"
  23
  24 #include "common/conf.h"
  25 #include "common/logging_conf.h"
  26 #include "common/path.h"
  27
  28 #include "cluster/cluster_conf.h"
  29 #include "database/database_conf.h"
  30 #include "event/event_conf.h"
  31 #include "failover/failover_conf.h"
  32 #include "legacy_conf.h"
  33
  34 #include "ctdb_config.h"
  35
  36 struct ctdb_config ctdb_config;
  37
  38 static void setup_config_pointers(struct conf_context *conf)
  39 {
  40         /*
  41          * Cluster
  42          */
  43
  44         conf_assign_string_pointer(conf,
  45                                    CLUSTER_CONF_SECTION,
  46                                    CLUSTER_CONF_TRANSPORT,
  47                                    &ctdb_config.transport);
  48         conf_assign_string_pointer(conf,
  49                                    CLUSTER_CONF_SECTION,
  50                                    CLUSTER_CONF_NODE_ADDRESS,
  51                                    &ctdb_config.node_address);
  52         conf_assign_string_pointer(conf,
  53                                    CLUSTER_CONF_SECTION,
  54                                    CLUSTER_CONF_CLUSTER_LOCK,
  55                                    &ctdb_config.cluster_lock);
  56         conf_assign_string_pointer(conf,
  57                                    CLUSTER_CONF_SECTION,
  58                                    CLUSTER_CONF_RECOVERY_LOCK,
  59                                    &ctdb_config.recovery_lock);
  60         conf_assign_integer_pointer(conf,
  61                                     CLUSTER_CONF_SECTION,
  62                                     CLUSTER_CONF_LEADER_TIMEOUT,
  63                                     &ctdb_config.leader_timeout);
  64         conf_assign_boolean_pointer(conf,
  65                                     CLUSTER_CONF_SECTION,
  66                                     CLUSTER_CONF_LEADER_CAPABILITY,
  67                                     &ctdb_config.leader_capability);
  68
  69         /*
  70          * Database
  71          */
  72
  73         conf_assign_string_pointer(conf,
  74                                    DATABASE_CONF_SECTION,
  75                                    DATABASE_CONF_VOLATILE_DB_DIR,
  76                                    &ctdb_config.dbdir_volatile);
  77        conf_assign_string_pointer(conf,
  78                                    DATABASE_CONF_SECTION,
  79                                    DATABASE_CONF_PERSISTENT_DB_DIR,
  80                                    &ctdb_config.dbdir_persistent);
  81         conf_assign_string_pointer(conf,
  82                                    DATABASE_CONF_SECTION,
  83                                    DATABASE_CONF_STATE_DB_DIR,
  84                                    &ctdb_config.dbdir_state);
  85         conf_assign_string_pointer(conf,
  86                                    DATABASE_CONF_SECTION,
  87                                    DATABASE_CONF_LOCK_DEBUG_SCRIPT,
  88                                    &ctdb_config.lock_debug_script);
  89         conf_assign_boolean_pointer(conf,
  90                                     DATABASE_CONF_SECTION,
  91                                     DATABASE_CONF_TDB_MUTEXES,
  92                                     &ctdb_config.tdb_mutexes);
  93
  94         /*
  95          * Event
  96          */
  97         conf_assign_string_pointer(conf,
  98                                    EVENT_CONF_SECTION,
  99                                    EVENT_CONF_DEBUG_SCRIPT,
 100                                    &ctdb_config.event_debug_script);
 101
 102         /*
 103          * Failover
 104          */
 105         conf_assign_boolean_pointer(conf,
 106                                     FAILOVER_CONF_SECTION,
 107                                     FAILOVER_CONF_DISABLED,
 108                                     &ctdb_config.failover_disabled);
 109
 110         /*
 111          * Legacy
 112          */
 113
 114         conf_assign_boolean_pointer(conf,
 115                                     LEGACY_CONF_SECTION,
 116                                     LEGACY_CONF_REALTIME_SCHEDULING,
 117                                     &ctdb_config.realtime_scheduling);
 118         conf_assign_boolean_pointer(conf,
 119                                     LEGACY_CONF_SECTION,
 120                                     LEGACY_CONF_LMASTER_CAPABILITY,
 121                                     &ctdb_config.lmaster_capability);
 122         conf_assign_boolean_pointer(conf,
 123                                     LEGACY_CONF_SECTION,
 124                                     LEGACY_CONF_START_AS_STOPPED,
 125                                     &ctdb_config.start_as_stopped);
 126         conf_assign_boolean_pointer(conf,
 127                                     LEGACY_CONF_SECTION,
 128                                     LEGACY_CONF_START_AS_DISABLED,
 129                                     &ctdb_config.start_as_disabled);
 130         conf_assign_string_pointer(conf,
 131                                    LEGACY_CONF_SECTION,
 132                                    LEGACY_CONF_SCRIPT_LOG_LEVEL,
 133                                    &ctdb_config.script_log_level);
 134 }
 135
 136 int ctdbd_config_load(TALLOC_CTX *mem_ctx,
 137                       struct conf_context **result)
 138 {
 139         struct conf_context *conf = NULL;
 140         int ret = 0;
 141         char *conf_file =  NULL;
 142
 143         ret = conf_init(mem_ctx, &conf);
 144         if (ret != 0) {
 145                 return ret;
 146         }
 147
 148         logging_conf_init(conf, NULL);
 149         cluster_conf_init(conf);
 150         database_conf_init(conf);
 151         event_conf_init(conf);
 152         failover_conf_init(conf);
 153         legacy_conf_init(conf);
 154
 155         setup_config_pointers(conf);
 156
 157         if (! conf_valid(conf)) {
 158                 ret = EINVAL;
 159                 goto fail;
 160         }
 161
 162         conf_file = path_config(conf);
 163         if (conf_file == NULL) {
 164                 D_ERR("Memory allocation error\n");
 165                 ret = ENOMEM;
 166                 goto fail;
 167         }
 168         ret = conf_load(conf, conf_file, true);
 169         /* Configuration file does not need to exist */
 170         if (ret != 0 && ret != ENOENT) {
 171                 D_ERR("Failed to load configuration file %s\n", conf_file);
 172                 goto fail;
 173         }
 174
 175         talloc_free(conf_file);
 176         *result = conf;
 177
 178         return 0;
 179
 180 fail:
 181         talloc_free(conf);
 182         return ret;
 183 }