void
nm_ip6_manager_cancel_addrconf (NMIP6Manager *manager, int ifindex)
{
g_return_if_fail (NM_IS_IP6_MANAGER (manager));
g_return_if_fail (ifindex > 0);
g_hash_table_remove (NM_IP6_MANAGER_GET_PRIVATE (manager)->devices,
GINT_TO_POINTER (ifindex));
}
static NMIP6Device *
nm_ip6_manager_get_device (NMIP6Manager *manager, int ifindex)
{
NMIP6ManagerPrivate *priv;
g_return_val_if_fail (manager != NULL, NULL);
g_return_val_if_fail (NM_IS_IP6_MANAGER (manager), NULL);
priv = NM_IP6_MANAGER_GET_PRIVATE (manager);
return g_hash_table_lookup (priv->devices, GINT_TO_POINTER (ifindex));
}
void
nm_ip6_manager_begin_addrconf (NMIP6Manager *manager, int ifindex)
{
NMIP6ManagerPrivate *priv;
NMIP6Device *device;
CallbackInfo *info;
g_return_if_fail (NM_IS_IP6_MANAGER (manager));
g_return_if_fail (ifindex > 0);
priv = NM_IP6_MANAGER_GET_PRIVATE (manager);
device = (NMIP6Device *) g_hash_table_lookup (priv->devices, GINT_TO_POINTER (ifindex));
g_return_if_fail (device != NULL);
nm_log_info (LOGD_IP6, "Activation (%s) Beginning IP6 addrconf.", device->iface);
device->addrconf_complete = FALSE;
device->ra_flags = 0;
/* Set up a timeout on the transaction to kill it after the timeout */
info = callback_info_new (device, FALSE);
device->finish_addrconf_id = g_timeout_add_seconds_full (G_PRIORITY_DEFAULT,
NM_IP6_TIMEOUT,
finish_addrconf,
info,
(GDestroyNotify) g_free);
/* Bounce IPv6 on the interface to ensure the kernel will start looking for
* new RAs; there doesn't seem to be a better way to do this right now.
*/
if (device->target_state >= NM_IP6_DEVICE_GOT_ADDRESS) {
nm_utils_do_sysctl (device->disable_ip6_path, "1");
/* Wait until all existing IPv6 addresses have been removed from the link,
* to ensure they don't confuse our IPv6 addressing state machine.
*/
wait_for_no_addresses (manager, device);
nm_utils_do_sysctl (device->disable_ip6_path, "0");
}
device->ip6flags_poll_id = g_timeout_add_seconds (1, poll_ip6_flags, priv->monitor);
/* Kick off the initial IPv6 flags request */
nm_netlink_monitor_request_ip6_info (priv->monitor, NULL);
/* Sync flags, etc, from netlink; this will also notice if the
* device is already fully configured and schedule the
* ADDRCONF_COMPLETE signal in that case.
*/
nm_ip6_device_sync_from_netlink (device);
}
gboolean
nm_ip6_manager_prepare_interface (NMIP6Manager *manager,
int ifindex,
const guint8 *hwaddr,
guint hwaddr_len,
NMSettingIP6Config *s_ip6,
const char *accept_ra_path)
{
NMIP6ManagerPrivate *priv;
NMIP6Device *device;
const char *method = NULL;
g_return_val_if_fail (NM_IS_IP6_MANAGER (manager), FALSE);
g_return_val_if_fail (ifindex > 0, FALSE);
g_return_val_if_fail (hwaddr != NULL, FALSE);
g_return_val_if_fail (hwaddr_len > 0, FALSE);
g_return_val_if_fail (hwaddr_len <= NM_UTILS_HWADDR_LEN_MAX, FALSE);
priv = NM_IP6_MANAGER_GET_PRIVATE (manager);
device = nm_ip6_device_new (manager, ifindex, hwaddr, hwaddr_len);
g_return_val_if_fail (device != NULL, FALSE);
g_return_val_if_fail ( strchr (device->iface, '/') == NULL
&& strcmp (device->iface, "all") != 0
&& strcmp (device->iface, "default") != 0,
FALSE);
if (s_ip6)
method = nm_setting_ip6_config_get_method (s_ip6);
if (!method)
method = NM_SETTING_IP6_CONFIG_METHOD_AUTO;
/* Establish target state and turn router advertisement acceptance on or off */
if (!strcmp (method, NM_SETTING_IP6_CONFIG_METHOD_LINK_LOCAL)) {
device->target_state = NM_IP6_DEVICE_GOT_LINK_LOCAL;
nm_utils_do_sysctl (accept_ra_path, "0");
} else {
device->target_state = NM_IP6_DEVICE_GOT_ADDRESS;
nm_utils_do_sysctl (accept_ra_path, "2");
}
return TRUE;
}
NMIP6Config *
nm_ip6_manager_get_ip6_config (NMIP6Manager *manager, int ifindex)
{
NMIP6ManagerPrivate *priv;
NMIP6Device *device;
NMIP6Config *config;
struct rtnl_addr *rtnladdr;
struct nl_addr *nladdr;
struct in6_addr *addr;
NMIP6Address *ip6addr;
struct rtnl_route *rtnlroute;
struct nl_addr *nldest, *nlgateway;
struct in6_addr *dest, *gateway;
gboolean defgw_set = FALSE;
struct in6_addr defgw;
uint32_t metric;
NMIP6Route *ip6route;
int i;
g_return_val_if_fail (NM_IS_IP6_MANAGER (manager), NULL);
g_return_val_if_fail (ifindex > 0, NULL);
priv = NM_IP6_MANAGER_GET_PRIVATE (manager);
device = (NMIP6Device *) g_hash_table_lookup (priv->devices,
GINT_TO_POINTER (ifindex));
if (!device) {
nm_log_warn (LOGD_IP6, "(%d): addrconf not started.", ifindex);
return NULL;
}
config = nm_ip6_config_new ();
if (!config) {
nm_log_err (LOGD_IP6, "(%s): out of memory creating IP6 config object.",
device->iface);
return NULL;
}
/* Make sure we refill the route and address caches, otherwise we won't get
* up-to-date information here since the netlink route/addr change messages
* may be lagging a bit.
*/
nl_cache_refill (priv->nlh, priv->route_cache);
nl_cache_refill (priv->nlh, priv->addr_cache);
/* Add routes */
for (rtnlroute = FIRST_ROUTE (priv->route_cache); rtnlroute; rtnlroute = NEXT_ROUTE (rtnlroute)) {
/* Make sure it's an IPv6 route for this device */
if (rtnl_route_get_oif (rtnlroute) != device->ifindex)
continue;
if (rtnl_route_get_family (rtnlroute) != AF_INET6)
continue;
nldest = rtnl_route_get_dst (rtnlroute);
if (!nldest || nl_addr_get_family (nldest) != AF_INET6)
continue;
dest = nl_addr_get_binary_addr (nldest);
nlgateway = rtnl_route_get_gateway (rtnlroute);
if (!nlgateway || nl_addr_get_family (nlgateway) != AF_INET6)
continue;
gateway = nl_addr_get_binary_addr (nlgateway);
if (rtnl_route_get_dst_len (rtnlroute) == 0) {
/* Default gateway route; don't add to normal routes but to each address */
if (!defgw_set) {
memcpy (&defgw, gateway, sizeof (defgw));
defgw_set = TRUE;
}
continue;
}
/* Also ignore link-local routes where the destination and gateway are
* the same, which apparently get added by the kernel but return -EINVAL
* when we try to add them via netlink.
*/
if (gateway && IN6_ARE_ADDR_EQUAL (dest, gateway))
continue;
ip6route = nm_ip6_route_new ();
nm_ip6_route_set_dest (ip6route, dest);
nm_ip6_route_set_prefix (ip6route, rtnl_route_get_dst_len (rtnlroute));
nm_ip6_route_set_next_hop (ip6route, gateway);
rtnl_route_get_metric(rtnlroute, 1, &metric);
if (metric != UINT_MAX)
nm_ip6_route_set_metric (ip6route, metric);
nm_ip6_config_take_route (config, ip6route);
}
/* Add addresses */
for (rtnladdr = FIRST_ADDR (priv->addr_cache); rtnladdr; rtnladdr = NEXT_ADDR (rtnladdr)) {
if (rtnl_addr_get_ifindex (rtnladdr) != device->ifindex)
continue;
nladdr = rtnl_addr_get_local (rtnladdr);
if (!nladdr || nl_addr_get_family (nladdr) != AF_INET6)
continue;
addr = nl_addr_get_binary_addr (nladdr);
ip6addr = nm_ip6_address_new ();
nm_ip6_address_set_prefix (ip6addr, rtnl_addr_get_prefixlen (rtnladdr));
nm_ip6_address_set_address (ip6addr, addr);
nm_ip6_config_take_address (config, ip6addr);
if (defgw_set)
nm_ip6_address_set_gateway (ip6addr, &defgw);
}
/* Add DNS servers */
if (device->rdnss_servers) {
NMIP6RDNSS *rdnss = (NMIP6RDNSS *)(device->rdnss_servers->data);
for (i = 0; i < device->rdnss_servers->len; i++)
nm_ip6_config_add_nameserver (config, &rdnss[i].addr);
}
/* Add DNS domains */
if (device->dnssl_domains) {
NMIP6DNSSL *dnssl = (NMIP6DNSSL *)(device->dnssl_domains->data);
for (i = 0; i < device->dnssl_domains->len; i++)
nm_ip6_config_add_domain (config, dnssl[i].domain);
}
return config;
}