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_RECOVERY_LOCK,
  55                                    &ctdb_config.recovery_lock);
  56
  57         /*
  58          * Database
  59          */
  60
  61         conf_assign_string_pointer(conf,
  62                                    DATABASE_CONF_SECTION,
  63                                    DATABASE_CONF_VOLATILE_DB_DIR,
  64                                    &ctdb_config.dbdir_volatile);
  65        conf_assign_string_pointer(conf,
  66                                    DATABASE_CONF_SECTION,
  67                                    DATABASE_CONF_PERSISTENT_DB_DIR,
  68                                    &ctdb_config.dbdir_persistent);
  69         conf_assign_string_pointer(conf,
  70                                    DATABASE_CONF_SECTION,
  71                                    DATABASE_CONF_STATE_DB_DIR,
  72                                    &ctdb_config.dbdir_state);
  73         conf_assign_string_pointer(conf,
  74                                    DATABASE_CONF_SECTION,
  75                                    DATABASE_CONF_LOCK_DEBUG_SCRIPT,
  76                                    &ctdb_config.lock_debug_script);
  77         conf_assign_boolean_pointer(conf,
  78                                     DATABASE_CONF_SECTION,
  79                                     DATABASE_CONF_TDB_MUTEXES,
  80                                     &ctdb_config.tdb_mutexes);
  81
  82         /*
  83          * Event
  84          */
  85         conf_assign_string_pointer(conf,
  86                                    EVENT_CONF_SECTION,
  87                                    EVENT_CONF_DEBUG_SCRIPT,
  88                                    &ctdb_config.event_debug_script);
  89
  90         /*
  91          * Failover
  92          */
  93         conf_assign_boolean_pointer(conf,
  94                                     FAILOVER_CONF_SECTION,
  95                                     FAILOVER_CONF_DISABLED,
  96                                     &ctdb_config.failover_disabled);
  97
  98         /*
  99          * Legacy
 100          */
 101
 102         conf_assign_boolean_pointer(conf,
 103                                     LEGACY_CONF_SECTION,
 104                                     LEGACY_CONF_REALTIME_SCHEDULING,
 105                                     &ctdb_config.realtime_scheduling);
 106         conf_assign_boolean_pointer(conf,
 107                                     LEGACY_CONF_SECTION,
 108                                     LEGACY_CONF_RECMASTER_CAPABILITY,
 109                                     &ctdb_config.recmaster_capability);
 110         conf_assign_boolean_pointer(conf,
 111                                     LEGACY_CONF_SECTION,
 112                                     LEGACY_CONF_LMASTER_CAPABILITY,
 113                                     &ctdb_config.lmaster_capability);
 114         conf_assign_boolean_pointer(conf,
 115                                     LEGACY_CONF_SECTION,
 116                                     LEGACY_CONF_START_AS_STOPPED,
 117                                     &ctdb_config.start_as_stopped);
 118         conf_assign_boolean_pointer(conf,
 119                                     LEGACY_CONF_SECTION,
 120                                     LEGACY_CONF_START_AS_DISABLED,
 121                                     &ctdb_config.start_as_disabled);
 122         conf_assign_string_pointer(conf,
 123                                    LEGACY_CONF_SECTION,
 124                                    LEGACY_CONF_SCRIPT_LOG_LEVEL,
 125                                    &ctdb_config.script_log_level);
 126 }
 127
 128 int ctdbd_config_load(TALLOC_CTX *mem_ctx,
 129                       struct conf_context **result)
 130 {
 131         struct conf_context *conf = NULL;
 132         int ret = 0;
 133         char *conf_file =  NULL;
 134
 135         ret = conf_init(mem_ctx, &conf);
 136         if (ret != 0) {
 137                 return ret;
 138         }
 139
 140         logging_conf_init(conf, "NOTICE");
 141         cluster_conf_init(conf);
 142         database_conf_init(conf);
 143         event_conf_init(conf);
 144         failover_conf_init(conf);
 145         legacy_conf_init(conf);
 146
 147         setup_config_pointers(conf);
 148
 149         if (! conf_valid(conf)) {
 150                 ret = EINVAL;
 151                 goto fail;
 152         }
 153
 154         conf_file = path_config(conf);
 155         if (conf_file == NULL) {
 156                 D_ERR("Memory allocation error\n");
 157                 ret = ENOMEM;
 158                 goto fail;
 159         }
 160         ret = conf_load(conf, conf_file, true);
 161         /* Configuration file does not need to exist */
 162         if (ret != 0 && ret != ENOENT) {
 163                 D_ERR("Failed to load configuration file %s\n", conf_file);
 164                 goto fail;
 165         }
 166
 167         talloc_free(conf_file);
 168         *result = conf;
 169
 170         return 0;
 171
 172 fail:
 173         talloc_free(conf);
 174         return ret;
 175 }