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00024 #include "asterisk.h"
00025
00026 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 182808 $")
00027
00028 #include "asterisk/channel.h"
00029 #include "asterisk/module.h"
00030
00031 #include "snmp/agent.h"
00032
00033 #define MODULE_DESCRIPTION "SNMP [Sub]Agent for Asterisk"
00034
00035 int res_snmp_agentx_subagent;
00036 int res_snmp_dont_stop;
00037 int res_snmp_enabled;
00038
00039 static pthread_t thread = AST_PTHREADT_NULL;
00040
00041
00042
00043
00044
00045 static int load_config(void)
00046 {
00047 struct ast_variable *var;
00048 struct ast_config *cfg;
00049 char *cat;
00050
00051 res_snmp_enabled = 0;
00052 res_snmp_agentx_subagent = 1;
00053 cfg = ast_config_load("res_snmp.conf");
00054 if (!cfg) {
00055 ast_log(LOG_WARNING, "Could not load res_snmp.conf\n");
00056 return 0;
00057 }
00058 cat = ast_category_browse(cfg, NULL);
00059 while (cat) {
00060 var = ast_variable_browse(cfg, cat);
00061
00062 if (strcasecmp(cat, "general") == 0) {
00063 while (var) {
00064 if (strcasecmp(var->name, "subagent") == 0) {
00065 if (ast_true(var->value))
00066 res_snmp_agentx_subagent = 1;
00067 else if (ast_false(var->value))
00068 res_snmp_agentx_subagent = 0;
00069 else {
00070 ast_log(LOG_ERROR, "Value '%s' does not evaluate to true or false.\n", var->value);
00071 ast_config_destroy(cfg);
00072 return 1;
00073 }
00074 } else if (strcasecmp(var->name, "enabled") == 0) {
00075 res_snmp_enabled = ast_true(var->value);
00076 } else {
00077 ast_log(LOG_ERROR, "Unrecognized variable '%s' in category '%s'\n", var->name, cat);
00078 ast_config_destroy(cfg);
00079 return 1;
00080 }
00081 var = var->next;
00082 }
00083 } else {
00084 ast_log(LOG_ERROR, "Unrecognized category '%s'\n", cat);
00085 ast_config_destroy(cfg);
00086 return 1;
00087 }
00088
00089 cat = ast_category_browse(cfg, cat);
00090 }
00091 ast_config_destroy(cfg);
00092 return 1;
00093 }
00094
00095 static int load_module(void)
00096 {
00097 if(!load_config())
00098 return AST_MODULE_LOAD_DECLINE;
00099
00100 ast_verbose(VERBOSE_PREFIX_1 "Loading [Sub]Agent Module\n");
00101
00102 res_snmp_dont_stop = 1;
00103 if (res_snmp_enabled)
00104 return ast_pthread_create_background(&thread, NULL, agent_thread, NULL);
00105 else
00106 return 0;
00107 }
00108
00109 static int unload_module(void)
00110 {
00111 ast_verbose(VERBOSE_PREFIX_1 "Unloading [Sub]Agent Module\n");
00112
00113 res_snmp_dont_stop = 0;
00114 return ((thread != AST_PTHREADT_NULL) ? pthread_join(thread, NULL) : 0);
00115 }
00116
00117 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "SNMP [Sub]Agent for Asterisk",
00118 .load = load_module,
00119 .unload = unload_module,
00120 );