static void add_host_route(int family, int index, const char *gateway,
enum connman_service_type service_type)
{
switch (family) {
case AF_INET:
if (g_strcmp0(gateway, "0.0.0.0") != 0) {
/*
* We must not set route to the phy dev gateway in
* VPN link. The packets to VPN link might be routed
* back to itself and not routed into phy link gateway.
*/
if (service_type != CONNMAN_SERVICE_TYPE_VPN)
connman_inet_add_host_route(index, gateway,
NULL);
} else {
/*
* Add host route to P-t-P link so that services can
* be moved around and we can have some link to P-t-P
* network (although those P-t-P links have limited
* usage if default route is not directed to them)
*/
char *dest;
if (connman_inet_get_dest_addr(index, &dest) == 0) {
connman_inet_add_host_route(index, dest, NULL);
g_free(dest);
}
}
break;
case AF_INET6:
if (g_strcmp0(gateway, "::") != 0) {
if (service_type != CONNMAN_SERVICE_TYPE_VPN)
connman_inet_add_ipv6_host_route(index,
gateway, NULL);
} else {
/* P-t-P link, add route to destination */
char *dest;
if (connman_inet_ipv6_get_dest_addr(index,
&dest) == 0) {
connman_inet_add_ipv6_host_route(index, dest,
NULL);
g_free(dest);
}
}
break;
}
}
static bool wispr_route_request(const char *address, int ai_family,
int if_index, gpointer user_data)
{
int result = -1;
struct connman_wispr_portal_context *wp_context = user_data;
const char *gateway;
struct wispr_route *route;
gateway = __connman_ipconfig_get_gateway_from_index(if_index,
wp_context->type);
DBG("address %s if %d gw %s", address, if_index, gateway);
if (!gateway)
return false;
route = g_try_new0(struct wispr_route, 1);
if (route == 0) {
DBG("could not create struct");
return false;
}
switch (wp_context->type) {
case CONNMAN_IPCONFIG_TYPE_IPV4:
result = connman_inet_add_host_route(if_index, address,
gateway);
break;
case CONNMAN_IPCONFIG_TYPE_IPV6:
result = connman_inet_add_ipv6_host_route(if_index, address,
gateway);
break;
case CONNMAN_IPCONFIG_TYPE_UNKNOWN:
case CONNMAN_IPCONFIG_TYPE_ALL:
break;
}
if (result < 0) {
g_free(route);
return false;
}
route->address = g_strdup(address);
route->if_index = if_index;
wp_context->route_list = g_slist_prepend(wp_context->route_list, route);
return true;
}
int __vpn_ipconfig_gateway_add(struct vpn_ipconfig *ipconfig, int family)
{
DBG("ipconfig %p family %d", ipconfig, family);
if (!ipconfig || !ipconfig->address)
return -EINVAL;
DBG("family %d gw %s peer %s", family,
ipconfig->address->gateway, ipconfig->address->peer);
if (family == AF_INET)
connman_inet_add_host_route(ipconfig->index,
ipconfig->address->gateway,
ipconfig->address->peer);
else if (family == AF_INET6)
connman_inet_add_ipv6_host_route(ipconfig->index,
ipconfig->address->gateway,
ipconfig->address->peer);
else
return -EINVAL;
return 0;
}
static void set_vpn_routes(struct gateway_data *new_gateway,
struct connman_service *service,
const char *gateway,
enum connman_ipconfig_type type,
const char *peer,
struct gateway_data *active_gateway)
{
struct gateway_config *config;
struct connman_ipconfig *ipconfig;
char *dest;
DBG("new %p service %p gw %s type %d peer %s active %p",
new_gateway, service, gateway, type, peer, active_gateway);
if (type == CONNMAN_IPCONFIG_TYPE_IPV4) {
ipconfig = __connman_service_get_ip4config(service);
config = new_gateway->ipv4_gateway;
} else if (type == CONNMAN_IPCONFIG_TYPE_IPV6) {
ipconfig = __connman_service_get_ip6config(service);
config = new_gateway->ipv6_gateway;
} else
return;
if (config) {
int index = __connman_ipconfig_get_index(ipconfig);
struct get_gateway_params *params;
config->vpn = true;
if (peer)
config->vpn_ip = g_strdup(peer);
else if (gateway)
config->vpn_ip = g_strdup(gateway);
params = g_try_malloc(sizeof(struct get_gateway_params));
if (!params)
return;
params->vpn_index = index;
params->vpn_gateway = g_strdup(gateway);
/*
* Find the gateway that is serving the VPN link
*/
__connman_inet_get_route(gateway, get_gateway_cb, params);
}
if (!active_gateway)
return;
if (type == CONNMAN_IPCONFIG_TYPE_IPV4) {
/*
* Special route to VPN server via gateway. This
* is needed so that we can access hosts behind
* the VPN. The route might already exist depending
* on network topology.
*/
if (!active_gateway->ipv4_gateway)
return;
DBG("active gw %s", active_gateway->ipv4_gateway->gateway);
if (g_strcmp0(active_gateway->ipv4_gateway->gateway,
"0.0.0.0") != 0)
dest = active_gateway->ipv4_gateway->gateway;
else
dest = NULL;
connman_inet_add_host_route(active_gateway->index, gateway,
dest);
} else if (type == CONNMAN_IPCONFIG_TYPE_IPV6) {
if (!active_gateway->ipv6_gateway)
return;
DBG("active gw %s", active_gateway->ipv6_gateway->gateway);
if (g_strcmp0(active_gateway->ipv6_gateway->gateway,
"::") != 0)
dest = active_gateway->ipv6_gateway->gateway;
else
dest = NULL;
connman_inet_add_ipv6_host_route(active_gateway->index,
gateway, dest);
}
}