*
* Connection Manager
*
- * Copyright (C) 2007-2010 Intel Corporation. All rights reserved.
+ * Copyright (C) 2007-2013 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#include "connman.h"
+#define TS_RECHECK_INTERVAL 7200
+
static GSList *ts_list = NULL;
+static char *ts_current = NULL;
+static int ts_recheck_id = 0;
static GResolv *resolv = NULL;
static int resolv_id = 0;
int cnt;
keyfile = __connman_storage_load_global();
- if (keyfile == NULL)
+ if (!keyfile)
keyfile = g_key_file_new();
- for (cnt = 0; servers != NULL && servers[cnt] != NULL; cnt++);
+ for (cnt = 0; servers && servers[cnt]; cnt++);
g_key_file_set_string_list(keyfile, "global", "Timeservers",
(const gchar **)servers, cnt);
return;
}
-static char **load_timeservers()
+static char **load_timeservers(void)
{
GKeyFile *keyfile;
- GError *error = NULL;
char **servers = NULL;
keyfile = __connman_storage_load_global();
- if (keyfile == NULL)
+ if (!keyfile)
return NULL;
servers = g_key_file_get_string_list(keyfile, "global",
- "Timeservers", NULL, &error);
- if (error) {
- DBG("Error loading timeservers: %s", error->message);
- g_error_free(error);
- }
+ "Timeservers", NULL, NULL);
g_key_file_free(keyfile);
return servers;
}
-static void resolv_result(GResolvResultStatus status, char **results, gpointer user_data)
+static void resolv_result(GResolvResultStatus status, char **results,
+ gpointer user_data)
{
int i;
DBG("status %d", status);
if (status == G_RESOLV_RESULT_STATUS_SUCCESS) {
- if (results != NULL) {
- for (i = 0; results[i]; i++)
- DBG("result: %s", results[i]);
+ if (results) {
+ for (i = 0; results[i]; i++) {
+ DBG("result[%d]: %s", i, results[i]);
+ if (i == 0)
+ continue;
+
+ ts_list = __connman_timeserver_add_list(
+ ts_list, results[i]);
+ }
+
+ DBG("Using timeserver %s", results[0]);
__connman_ntp_start(results[0]);
* Once the timeserver list (ts_list) is created, we start querying the
* servers one by one. If resolving fails on one of them, we move to the
* next one. The user can enter either an IP address or a URL for the
- * timeserver. We only resolve the urls. Once we have a IP for the NTP
+ * timeserver. We only resolve the URLs. Once we have an IP for the NTP
* server, we start querying it for time corrections.
*/
void __connman_timeserver_sync_next()
{
- char *server;
- int ret;
- struct addrinfo hints;
- struct addrinfo *addr;
+ if (ts_current) {
+ g_free(ts_current);
+ ts_current = NULL;
+ }
__connman_ntp_stop();
/* Get the 1st server in the list */
- if (ts_list == NULL)
+ if (!ts_list)
return;
- server = ts_list->data;
+ ts_current = ts_list->data;
ts_list = g_slist_delete_link(ts_list, ts_list);
- memset(&hints, 0, sizeof(struct addrinfo));
- hints.ai_flags = AI_NUMERICHOST;
- addr = NULL;
-
- ret = getaddrinfo(server, NULL, &hints, &addr);
- freeaddrinfo(addr);
+ /* if it's an IP, directly query it. */
+ if (connman_inet_check_ipaddress(ts_current) > 0) {
+ DBG("Using timeserver %s", ts_current);
- /* if its a IP , directly query it. */
- if (ret == 0) {
- DBG("Using timeservers %s", server);
+ __connman_ntp_start(ts_current);
- __connman_ntp_start(server);
-
- g_free(server);
return;
}
- DBG("Resolving server %s", server);
+ DBG("Resolving timeserver %s", ts_current);
- resolv_id = g_resolv_lookup_hostname(resolv, server,
+ resolv_id = g_resolv_lookup_hostname(resolv, ts_current,
resolv_result, NULL);
- g_free(server);
-
return;
}
+GSList *__connman_timeserver_add_list(GSList *server_list,
+ const char *timeserver)
+{
+ GSList *list = server_list;
+
+ if (!timeserver)
+ return server_list;
+
+ while (list) {
+ char *existing_server = list->data;
+ if (strcmp(timeserver, existing_server) == 0)
+ return server_list;
+ list = g_slist_next(list);
+ }
+ return g_slist_prepend(server_list, g_strdup(timeserver));
+}
/*
- * __connman_timeserver_sync function recreates the timeserver
+ * __connman_timeserver_get_all function creates the timeserver
* list which will be used to determine NTP server for time corrections.
- * It must be called everytime the default service changes, the service
- * timeserver(s) or gatway changes or the global timeserver(s) changes.
* The service settings take priority over the global timeservers.
*/
-int __connman_timeserver_sync(struct connman_service *default_service)
+GSList *__connman_timeserver_get_all(struct connman_service *service)
{
- struct connman_service *service;
+ GSList *list = NULL;
struct connman_network *network;
char **timeservers;
char **service_ts;
char **fallback_ts;
int index, i;
- if (default_service != NULL)
- service = default_service;
- else
- service = __connman_service_get_default();
+ if (__connman_clock_timeupdates() == TIME_UPDATES_MANUAL)
+ return NULL;
- if (service == NULL)
- return -EINVAL;
+ service_ts_config = connman_service_get_timeservers_config(service);
- if (resolv == NULL)
- return 0;
- /*
- * Before be start creating the new timeserver list we must stop
- * any ongoing ntp query and server resolution.
- */
+ /* First add Service Timeservers.Configuration to the list */
+ for (i = 0; service_ts_config && service_ts_config[i];
+ i++)
+ list = __connman_timeserver_add_list(list,
+ service_ts_config[i]);
- __connman_ntp_stop();
+ service_ts = connman_service_get_timeservers(service);
- if (resolv_id > 0)
- g_resolv_cancel_lookup(resolv, resolv_id);
+ /* Then add Service Timeservers via DHCP to the list */
+ for (i = 0; service_ts && service_ts[i]; i++)
+ list = __connman_timeserver_add_list(list, service_ts[i]);
- if (ts_list != NULL) {
- g_slist_free_full(ts_list, g_free);
- ts_list = NULL;
+ network = __connman_service_get_network(service);
+ if (network) {
+ index = connman_network_get_index(network);
+ service_gw = __connman_ipconfig_get_gateway_from_index(index,
+ CONNMAN_IPCONFIG_TYPE_ALL);
+
+ /* Then add Service Gateway to the list */
+ if (service_gw)
+ list = __connman_timeserver_add_list(list, service_gw);
}
- service_ts_config = connman_service_get_timeservers_config(service);
+ /* Then add Global Timeservers to the list */
+ timeservers = load_timeservers();
- /* First add Service Timeservers.Configuration to the list */
- for (i=0; service_ts_config != NULL && service_ts_config[i] != NULL; i++)
- ts_list = g_slist_prepend(ts_list, g_strdup(service_ts_config[i]));
+ for (i = 0; timeservers && timeservers[i]; i++)
+ list = __connman_timeserver_add_list(list, timeservers[i]);
- service_ts = connman_service_get_timeservers(service);
+ g_strfreev(timeservers);
- /* First add Service Timeservers via DHCP to the list */
- for (i=0; service_ts != NULL && service_ts[i] != NULL; i++)
- ts_list = g_slist_prepend(ts_list, g_strdup(service_ts[i]));
+ fallback_ts = connman_setting_get_string_list("FallbackTimeservers");
- network = __connman_service_get_network(service);
+ /* Lastly add the fallback servers */
+ for (i = 0; fallback_ts && fallback_ts[i]; i++)
+ list = __connman_timeserver_add_list(list, fallback_ts[i]);
- index = connman_network_get_index(network);
+ return g_slist_reverse(list);
+}
- service_gw = __connman_ipconfig_get_gateway_from_index(index);
+static gboolean ts_recheck(gpointer user_data)
+{
+ GSList *ts;
- /* Then add Service Gateway to the list */
- if (service_gw != NULL)
- ts_list = g_slist_prepend(ts_list, g_strdup(service_gw));
+ ts = __connman_timeserver_get_all(__connman_service_get_default());
- /* Then add Global Timeservers to the list */
- timeservers = load_timeservers();
+ if (!ts) {
+ DBG("timeservers disabled");
- for (i=0; timeservers != NULL && timeservers[i] != NULL; i++)
- ts_list = g_slist_prepend(ts_list, g_strdup(timeservers[i]));
+ return TRUE;
+ }
- fallback_ts = connman_setting_get_string_list("FallbackTimeservers");
+ if (g_strcmp0(ts_current, ts->data) != 0) {
+ DBG("current %s preferred %s", ts_current, (char *)ts->data);
- /* Lastly add the fallback servers */
- for (i=0; fallback_ts != NULL && fallback_ts[i] != NULL; i++)
- ts_list = g_slist_prepend(ts_list, g_strdup(fallback_ts[i]));
+ g_slist_free_full(ts, g_free);
+
+ __connman_timeserver_sync(NULL);
+
+ return FALSE;
+ }
+
+ DBG("");
+
+ g_slist_free_full(ts, g_free);
+
+ return TRUE;
+}
+
+static void ts_recheck_disable(void)
+{
+ if (ts_recheck_id == 0)
+ return;
+
+ g_source_remove(ts_recheck_id);
+ ts_recheck_id = 0;
+
+ if (ts_current) {
+ g_free(ts_current);
+ ts_current = NULL;
+ }
+}
+
+static void ts_recheck_enable(void)
+{
+ if (ts_recheck_id > 0)
+ return;
+
+ ts_recheck_id = g_timeout_add_seconds(TS_RECHECK_INTERVAL, ts_recheck,
+ NULL);
+}
+
+/*
+ * This function must be called everytime the default service changes, the
+ * service timeserver(s) or gateway changes or the global timeserver(s) changes.
+ */
+int __connman_timeserver_sync(struct connman_service *default_service)
+{
+ struct connman_service *service;
- if (ts_list == NULL) {
+ if (default_service)
+ service = default_service;
+ else
+ service = __connman_service_get_default();
+
+ if (!service)
+ return -EINVAL;
+
+ if (!resolv)
+ return 0;
+ /*
+ * Before we start creating the new timeserver list we must stop
+ * any ongoing ntp query and server resolution.
+ */
+
+ __connman_ntp_stop();
+
+ ts_recheck_disable();
+
+ if (resolv_id > 0)
+ g_resolv_cancel_lookup(resolv, resolv_id);
+
+ g_slist_free_full(ts_list, g_free);
+
+ ts_list = __connman_timeserver_get_all(service);
+
+ __connman_service_timeserver_changed(service, ts_list);
+
+ if (!ts_list) {
DBG("No timeservers set.");
return 0;
}
- ts_list = g_slist_reverse(ts_list);
+ ts_recheck_enable();
- __connman_timeserver_sync_next();
+ __connman_timeserver_sync_next();
return 0;
}
return -EINVAL;
nameservers = connman_service_get_nameservers(service);
- if (nameservers == NULL)
+ if (!nameservers)
return -EINVAL;
/* Stop an already ongoing resolution, if there is one */
- if (resolv != NULL && resolv_id > 0)
+ if (resolv && resolv_id > 0)
g_resolv_cancel_lookup(resolv, resolv_id);
/* get rid of the old resolver */
- if (resolv != NULL) {
+ if (resolv) {
g_resolv_unref(resolv);
resolv = NULL;
}
resolv = g_resolv_new(i);
- if (resolv == NULL)
+ if (!resolv) {
+ g_strfreev(nameservers);
return -ENOMEM;
+ }
if (getenv("CONNMAN_RESOLV_DEBUG"))
g_resolv_set_debug(resolv, resolv_debug, "RESOLV");
- for (i = 0; nameservers[i] != NULL; i++)
+ for (i = 0; nameservers[i]; i++)
g_resolv_add_nameserver(resolv, nameservers[i], 53, 0);
+ g_strfreev(nameservers);
+
return __connman_timeserver_sync(service);
}
-static void timeserver_stop()
+static void timeserver_stop(void)
{
DBG(" ");
- if (resolv != NULL) {
+ if (resolv) {
g_resolv_unref(resolv);
resolv = NULL;
}
- if (ts_list != NULL)
- g_slist_free_full(ts_list, g_free);
+ g_slist_free_full(ts_list, g_free);
ts_list = NULL;
__connman_ntp_stop();
+
+ ts_recheck_disable();
}
int __connman_timeserver_system_set(char **servers)
static void default_changed(struct connman_service *default_service)
{
- if (default_service != NULL)
+ if (default_service)
timeserver_start(default_service);
else
timeserver_stop();
projects / platform / upstream / connman.git / blobdiff