static gboolean resolver_refresh_cb(gpointer user_data)
{
struct entry_data *entry = user_data;
int index;
unsigned int interval;
struct connman_service *service = NULL;
/* Round up what we have left from lifetime */
interval = entry->lifetime *
(1 - RESOLVER_LIFETIME_REFRESH_THRESHOLD) + 1.0;
DBG("RDNSS start interface %s domain %s "
"server %s remaining lifetime %d",
entry->interface, entry->domain,
entry->server, interval);
entry->timeout = g_timeout_add_seconds(interval,
resolver_expire_cb, entry);
index = connman_inet_ifindex(entry->interface);
if (index >= 0) {
service = __connman_service_lookup_from_index(index);
if (service != NULL) {
/*
* Send Router Solicitation to refresh RDNSS entries
* before their lifetime expires
*/
__connman_refresh_rs_ipv6(
__connman_service_get_network(service),
index);
}
}
return FALSE;
}
static int append_resolver(const char *interface, const char *domain,
const char *server, unsigned int lifetime,
unsigned int flags)
{
struct entry_data *entry;
unsigned int interval;
DBG("interface %s domain %s server %s lifetime %d flags %d",
interface, domain, server, lifetime, flags);
if (server == NULL && domain == NULL)
return -EINVAL;
entry = g_try_new0(struct entry_data, 1);
if (entry == NULL)
return -ENOMEM;
entry->interface = g_strdup(interface);
entry->domain = g_strdup(domain);
entry->server = g_strdup(server);
entry->flags = flags;
entry->lifetime = lifetime;
if (server != NULL)
entry->family = connman_inet_check_ipaddress(server);
if (lifetime) {
int index;
interval = lifetime * RESOLVER_LIFETIME_REFRESH_THRESHOLD;
DBG("RDNSS start interface %s domain %s "
"server %s lifetime threshold %d",
interface, domain, server, interval);
entry->timeout = g_timeout_add_seconds(interval,
resolver_refresh_cb, entry);
/*
* We update the service only for those nameservers
* that are automagically added via netlink (lifetime > 0)
*/
index = connman_inet_ifindex(interface);
if (server != NULL && index >= 0) {
struct connman_service *service;
service = __connman_service_lookup_from_index(index);
if (service != NULL)
__connman_service_nameserver_append(service,
server, TRUE);
}
}
entry_list = g_slist_append(entry_list, entry);
if (dnsproxy_enabled == TRUE)
__connman_dnsproxy_append(interface, domain, server);
else
__connman_resolvfile_append(interface, domain, server);
return 0;
}
static int append_resolver(const char *interface, const char *domain,
const char *server, unsigned int lifetime,
unsigned int flags)
{
struct entry_data *entry;
DBG("interface %s domain %s server %s lifetime %d flags %d",
interface, domain, server, lifetime, flags);
if (server == NULL && domain == NULL)
return -EINVAL;
entry = g_try_new0(struct entry_data, 1);
if (entry == NULL)
return -ENOMEM;
entry->interface = g_strdup(interface);
entry->domain = g_strdup(domain);
entry->server = g_strdup(server);
entry->flags = flags;
if (lifetime) {
int index;
entry->timeout = g_timeout_add_seconds(lifetime,
resolver_expire_cb, entry);
/*
* We update the service only for those nameservers
* that are automagically added via netlink (lifetime > 0)
*/
index = connman_inet_ifindex(interface);
if (index >= 0) {
struct connman_service *service;
service = __connman_service_lookup_from_index(index);
if (service != NULL)
__connman_service_nameserver_append(service,
server, TRUE);
}
}
entry_list = g_slist_append(entry_list, entry);
if (dnsproxy_enabled == TRUE)
__connman_dnsproxy_append(interface, domain, server);
else
__connman_resolvfile_append(interface, domain, server);
return 0;
}
static gboolean resolver_expire_cb(gpointer user_data)
{
struct entry_data *entry = user_data;
GSList *list;
int index;
DBG("interface %s domain %s server %s",
entry->interface, entry->domain, entry->server);
list = g_slist_append(NULL, entry);
index = connman_inet_ifindex(entry->interface);
if (index >= 0) {
struct connman_service *service;
service = __connman_service_lookup_from_index(index);
if (service != NULL)
__connman_service_nameserver_remove(service,
entry->server, TRUE);
}
remove_entries(list);
return FALSE;
}
