icwmp/config.c

/*
 *	This program is free software: you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation, either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	Copyright (C) 2013-2020 iopsys Software Solutions AB
 *	  Author Mohamed Kallel <mohamed.kallel@pivasoftware.com>
 *	  Author Ahmed Zribi <ahmed.zribi@pivasoftware.com>
 *	  Author Omar Kallel <omar.kallel@pivasoftware.com>
 */

#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include "config.h"
#include "cwmp_uci.h"
#include "log.h"
#include <time.h>

pthread_mutex_t mutex_config_load = PTHREAD_MUTEX_INITIALIZER;

int check_global_config(struct config *conf)
{
	if (conf->acsurl == NULL) {
		conf->acsurl = strdup(DEFAULT_ACSURL);
	}
	return CWMP_OK;
}

int get_global_config(struct config *conf)
{
	int error, error2, error3;
	char *value = NULL, *value2 = NULL, *value3 = NULL;

	if ((error = uci_get_value(UCI_CPE_LOG_FILE_NAME, &value)) == CWMP_OK) {
		if (value != NULL) {
			log_set_log_file_name(value);
			free(value);
			value = NULL;
		}
	}

	if ((error = uci_get_value(UCI_CPE_LOG_MAX_SIZE, &value)) == CWMP_OK) {
		if (value != NULL) {
			log_set_file_max_size(value);
			free(value);
			value = NULL;
		}
	}

	if ((error = uci_get_value(UCI_CPE_ENABLE_STDOUT_LOG, &value)) == CWMP_OK) {
		if (value != NULL) {
			log_set_on_console(value);
			free(value);
			value = NULL;
		}
	}

	if ((error = uci_get_value(UCI_CPE_ENABLE_FILE_LOG, &value)) == CWMP_OK) {
		if (value != NULL) {
			log_set_on_file(value);
			free(value);
			value = NULL;
		}
	}

	error = uci_get_value(UCI_DHCP_DISCOVERY_PATH, &value);
	error2 = uci_get_value(UCI_ACS_URL_PATH, &value2);
	error3 = uci_get_state_value(UCI_DHCP_ACS_URL, &value3);

	if ((((error == CWMP_OK) && (value != NULL) && (strcmp(value, "enable") == 0)) || ((error2 == CWMP_OK) && ((value2 == NULL) || (value2[0] == 0)))) && ((error3 == CWMP_OK) && (value3 != NULL) && (value3[0] != 0))) {
		if (conf->acsurl != NULL) {
			free(conf->acsurl);
		}
		conf->acsurl = value3;
		value3 = NULL;
	} else if ((error2 == CWMP_OK) && (value2 != NULL) && (value2[0] != 0)) {
		if (conf->acsurl != NULL) {
			free(conf->acsurl);
		}
		conf->acsurl = value2;
		value2 = NULL;
	}
	if (value != NULL) {
		free(value);
		value = NULL;
	}
	if (value2 != NULL) {
		free(value2);
		value2 = NULL;
	}
	if (value3 != NULL) {
		free(value3);
		value3 = NULL;
	}

	if ((error = uci_get_value(UCI_ACS_USERID_PATH, &value)) == CWMP_OK) {
		if (value != NULL) {
			if (conf->acs_userid != NULL) {
				free(conf->acs_userid);
			}
			conf->acs_userid = value;
			value = NULL;
		}
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_ACS_PASSWD_PATH, &value)) == CWMP_OK) {
		if (value != NULL) {
			if (conf->acs_passwd != NULL) {
				free(conf->acs_passwd);
			}
			conf->acs_passwd = value;
			value = NULL;
		}
	} else {
		return error;
	}
	if ((error = get_amd_version_config()) != CWMP_OK) {
		return error;
	}
	if ((error = uci_get_value(UCI_ACS_COMPRESSION, &value)) == CWMP_OK) {
		conf->compression = COMP_NONE;
		if (conf->amd_version >= AMD_5 && value != NULL) {
			if (0 == strcasecmp(value, "gzip")) {
				conf->compression = COMP_GZIP;
			} else if (0 == strcasecmp(value, "deflate")) {
				conf->compression = COMP_DEFLATE;
			} else {
				conf->compression = COMP_NONE;
			}
		}
		free(value);
		value = NULL;
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_ACS_RETRY_MIN_WAIT_INTERVAL, &value)) == CWMP_OK) {
		conf->retry_min_wait_interval = DEFAULT_RETRY_MINIMUM_WAIT_INTERVAL;
		if (conf->amd_version >= AMD_3 && value != NULL) {
			int a = atoi(value);
			if (a <= 65535 || a >= 1) {
				conf->retry_min_wait_interval = a;
			}
		}
		free(value);
		value = NULL;

	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_ACS_RETRY_INTERVAL_MULTIPLIER, &value)) == CWMP_OK) {
		conf->retry_interval_multiplier = DEFAULT_RETRY_INTERVAL_MULTIPLIER;
		if (conf->amd_version >= AMD_3 && value != NULL) {
			int a = atoi(value);
			if (a <= 65535 || a >= 1000) {
				conf->retry_interval_multiplier = a;
			}
		}
		free(value);
		value = NULL;
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_ACS_SSL_CAPATH, &value)) == CWMP_OK) {
		if (value != NULL) {
			if (conf->acs_ssl_capath != NULL) {
				free(conf->acs_ssl_capath);
			}
			conf->acs_ssl_capath = value;
			value = NULL;
		}
	} else {
		FREE(conf->acs_ssl_capath);
	}
	if ((error = uci_get_value(UCI_HTTPS_SSL_CAPATH, &value)) == CWMP_OK) {
		if (value != NULL) {
			if (conf->https_ssl_capath != NULL) {
				free(conf->https_ssl_capath);
			}
			conf->https_ssl_capath = value;
			value = NULL;
		}
	} else {
		FREE(conf->https_ssl_capath);
	}
	if ((error = uci_get_value(HTTP_DISABLE_100CONTINUE, &value)) == CWMP_OK) {
		if (value != NULL) {
			if ((strcasecmp(value, "true") == 0) || (strcmp(value, "1") == 0))
				conf->http_disable_100continue = true;
			free(value);
			value = NULL;
		}
	}
	if ((error = uci_get_value(UCI_ACS_INSECURE_ENABLE, &value)) == CWMP_OK) {
		if (value != NULL) {
			if ((strcasecmp(value, "true") == 0) || (strcmp(value, "1") == 0)) {
				conf->insecure_enable = true;
			}
			free(value);
			value = NULL;
		}
	}
	if ((error = uci_get_value(UCI_ACS_IPV6_ENABLE, &value)) == CWMP_OK) {
		if (value != NULL) {
			if ((strcasecmp(value, "true") == 0) || (strcmp(value, "1") == 0)) {
				conf->ipv6_enable = true;
			}
			free(value);
			value = NULL;
		}
	}
	if ((error = uci_get_value(UCI_ACS_SSL_VERSION, &value)) == CWMP_OK) {
		if (value != NULL) {
			if (conf->acs_ssl_version != NULL) {
				free(conf->acs_ssl_version);
			}
			conf->acs_ssl_version = value;
			value = NULL;
		}
	} else {
		FREE(conf->acs_ssl_version);
	}
	if ((error = uci_get_value(UCI_CPE_INTERFACE_PATH, &value)) == CWMP_OK) {
		if (value != NULL) {
			if (conf->interface != NULL) {
				free(conf->interface);
			}
			conf->interface = value;
			value = NULL;
		}
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_CPE_USERID_PATH, &value)) == CWMP_OK) {
		if (value != NULL) {
			if (conf->cpe_userid != NULL) {
				free(conf->cpe_userid);
			}
			conf->cpe_userid = value;
			value = NULL;
		} else {
			if (conf->cpe_userid != NULL) {
				free(conf->cpe_userid);
			}
			conf->cpe_userid = strdup("");
		}
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_CPE_PASSWD_PATH, &value)) == CWMP_OK) {
		if (value != NULL) {
			if (conf->cpe_passwd != NULL) {
				free(conf->cpe_passwd);
			}
			conf->cpe_passwd = value;
			value = NULL;
		} else {
			if (conf->cpe_passwd != NULL) {
				free(conf->cpe_passwd);
			}
			conf->cpe_passwd = strdup("");
		}
	} else {
		return error;
	}

	if ((error = uci_get_value(UCI_LOG_SEVERITY_PATH, &value)) == CWMP_OK) {
		if (value != NULL) {
			log_set_severity_idx(value);
			free(value);
			value = NULL;
		}
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_CPE_ENABLE_SYSLOG, &value)) == CWMP_OK) {
		if (value != NULL) {
			log_set_on_syslog(value);
			free(value);
			value = NULL;
		}
	}
	if ((error = uci_get_value(UCI_CPE_PORT_PATH, &value)) == CWMP_OK) {
		int a = 0;

		if (value != NULL) {
			a = atoi(value);
			free(value);
			value = NULL;
		}
		if (a == 0) {
			CWMP_LOG(INFO, "Set the connection request port to the default value: %d", DEFAULT_CONNECTION_REQUEST_PORT);
			conf->connection_request_port = DEFAULT_CONNECTION_REQUEST_PORT;
		} else {
			conf->connection_request_port = a;
		}
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_CPE_DEFAULT_WAN_IFACE, &value)) == CWMP_OK) {
		if (value != NULL)
			conf->default_wan_iface = strdup(value);
		else
			conf->default_wan_iface = strdup("wan");
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_CPE_CRPATH_PATH, &value)) == CWMP_OK) {
		if (conf->connection_request_path != NULL) {
			free(conf->connection_request_path);
		}
		if (value == NULL)
			conf->connection_request_path = strdup("/");
		else {
			if (value[0] == '/')
				conf->connection_request_path = strdup(value);
			else {
				char *cr_path = NULL;
				cwmp_asprintf(&cr_path, "/%s", value);
				conf->connection_request_path = strdup(cr_path);
				free(cr_path);
			}
		}
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_CPE_NOTIFY_PERIODIC_ENABLE, &value)) == CWMP_OK) {
		bool a = true;
		if (value != NULL) {
			if ((strcasecmp(value, "FALSE") == 0) || (strcmp(value, "0") == 0)) {
				a = false;
			} else {
				a = true;
			}
			free(value);
			value = NULL;
		}
		conf->periodic_notify_enable = a;
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_CPE_NOTIFY_PERIOD, &value)) == CWMP_OK) {
		int a = 0;

		if (value != NULL) {
			a = atoi(value);
			free(value);
			value = NULL;
		}
		if (a == 0) {
			CWMP_LOG(INFO, "Set notify period to the default value: %d", DEFAULT_NOTIFY_PERIOD);
			conf->periodic_notify_interval = DEFAULT_NOTIFY_PERIOD;
		} else {
			conf->periodic_notify_interval = a;
		}
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_PERIODIC_INFORM_TIME_PATH, &value)) == CWMP_OK) {
		if (value != NULL) {
			struct tm tm;
			strptime(value, "%Y-%m-%dT%H:%M:%SZ", &tm);
			conf->time = mktime(&tm);
		} else
			conf->time = 0;
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_PERIODIC_INFORM_INTERVAL_PATH, &value)) == CWMP_OK) {
		int a = 0;

		if (value != NULL) {
			a = atoi(value);
			free(value);
			value = NULL;
		}
		if (a >= PERIOD_INFORM_MIN) {
			conf->period = a;
		} else {
			CWMP_LOG(ERROR, "Period interval of periodic inform should be > %ds. Set to default: %ds", PERIOD_INFORM_MIN, PERIOD_INFORM_DEFAULT);
			conf->period = PERIOD_INFORM_DEFAULT;
		}
	} else {
		return error;
	}
	if ((error = uci_get_value(UCI_PERIODIC_INFORM_ENABLE_PATH, &value)) == CWMP_OK) {
		if (value != NULL) {
			if ((strcasecmp(value, "TRUE") == 0) || (strcmp(value, "1") == 0)) {
				conf->periodic_enable = true;
			} else {
				conf->periodic_enable = false;
			}
			free(value);
			value = NULL;
		} else {
			conf->periodic_enable = false;
		}
	} else {
		return error;
	}
	if ((error = get_instance_mode_config()) != CWMP_OK) {
		return error;
	}
	if ((error = get_session_timeout_config()) != CWMP_OK) {
		return error;
	}
	return CWMP_OK;
}

int get_amd_version_config()
{
	int error;
	int a = 0;
	char *value = NULL;
	struct cwmp *cwmp = &cwmp_main;
	if ((error = uci_get_value(UCI_CPE_AMD_VERSION, &value)) == CWMP_OK) {
		cwmp->conf.amd_version = DEFAULT_AMD_VERSION;
		if (value != NULL) {
			a = atoi(value);
			if (a >= 1) {
				cwmp->conf.amd_version = a;
			}
			free(value);
			value = NULL;
		}
		cwmp->conf.supported_amd_version = cwmp->conf.amd_version;
	} else {
		return error;
	}
	return CWMP_OK;
}

int get_session_timeout_config()
{
	int error;
	int a = 0;
	char *value = NULL;
	struct cwmp *cwmp = &cwmp_main;
	if ((error = uci_get_value(UCI_CPE_SESSION_TIMEOUT, &value)) == CWMP_OK) {
		cwmp->conf.session_timeout = DEFAULT_SESSION_TIMEOUT;
		if (value != NULL) {
			a = atoi(value);
			if (a >= 1) {
				cwmp->conf.session_timeout = a;
			}
			free(value);
			value = NULL;
		}
	} else {
		return error;
	}
	return CWMP_OK;
}

int get_instance_mode_config()
{
	int error;
	char *value = NULL;
	struct cwmp *cwmp = &cwmp_main;
	if ((error = uci_get_value(UCI_CPE_INSTANCE_MODE, &value)) == CWMP_OK) {
		cwmp->conf.instance_mode = DEFAULT_INSTANCE_MODE;
		if (value != NULL) {
			if (0 == strcmp(value, "InstanceNumber")) {
				cwmp->conf.instance_mode = INSTANCE_MODE_NUMBER;
			} else {
				cwmp->conf.instance_mode = INSTANCE_MODE_ALIAS;
			}
			free(value);
			value = NULL;
		}
	} else {
		return error;
	}
	return CWMP_OK;
}

int get_lwn_config(struct config *conf)
{
	int error;
	int a = 0;
	char *value = NULL;
	if ((error = uci_get_value(LW_NOTIFICATION_ENABLE, &value)) == CWMP_OK) {
		if (value != NULL) {
			if ((strcasecmp(value, "TRUE") == 0) || (strcmp(value, "1") == 0)) {
				conf->lw_notification_enable = true;
			} else {
				conf->lw_notification_enable = false;
			}
			free(value);
			value = NULL;
		}
	}
	if ((error = uci_get_value(LW_NOTIFICATION_HOSTNAME, &value)) == CWMP_OK) {
		if (value != NULL) {
			conf->lw_notification_hostname = strdup(value);
			free(value);
			value = NULL;
		} else {
			conf->lw_notification_hostname = strdup(conf->acsurl);
		}
	}
	if ((error = uci_get_value(LW_NOTIFICATION_PORT, &value)) == CWMP_OK) {
		if (value != NULL) {
			a = atoi(value);
			conf->lw_notification_port = a;
			free(value);
			value = NULL;
		} else {
			conf->lw_notification_port = DEFAULT_LWN_PORT;
		}
	}
	return CWMP_OK;
}

int global_conf_init(struct config *conf)
{
	int error;

	pthread_mutex_lock(&mutex_config_load);
	if ((error = get_global_config(conf))) {
		pthread_mutex_unlock(&mutex_config_load);
		return error;
	}
	if ((error = check_global_config(conf))) {
		pthread_mutex_unlock(&mutex_config_load);
		return error;
	}
	get_lwn_config(conf);
	pthread_mutex_unlock(&mutex_config_load);
	return CWMP_OK;
}

int cwmp_get_deviceid(struct cwmp *cwmp)
{
	if (folder_exists("/lib/db/config"))
		cwmp_uci_init(UCI_DB_CONFIG);
	else
		cwmp_uci_init(UCI_BOARD_DB_CONFIG);
	cwmp->deviceid.manufacturer = strdup(cwmp_db_get_value_string("device", "deviceinfo", "Manufacturer")); //TODO free
	cwmp->deviceid.serialnumber = strdup(cwmp_db_get_value_string("device", "deviceinfo", "SerialNumber"));
	cwmp->deviceid.productclass = strdup(cwmp_db_get_value_string("device", "deviceinfo", "ProductClass"));
	cwmp->deviceid.oui = strdup(cwmp_db_get_value_string("device", "deviceinfo", "ManufacturerOUI"));
	cwmp->deviceid.softwareversion = strdup(cwmp_db_get_value_string("device", "deviceinfo", "SoftwareVersion"));
	cwmp_uci_exit();
	return CWMP_OK;
}

int cwmp_config_reload(struct cwmp *cwmp)
{
	int error;

	memset(&cwmp->env, 0, sizeof(struct env));
	memset(&cwmp->conf, 0, sizeof(struct config));

	if ((error = global_conf_init(&(cwmp->conf))))
		return error;

	return CWMP_OK;
}