static nsapi_error_t mbed_lwip_socket_accept(nsapi_stack_t *stack, nsapi_socket_t server, nsapi_socket_t *handle, nsapi_addr_t *addr, uint16_t *port)
{
struct lwip_socket *s = (struct lwip_socket *)server;
struct lwip_socket *ns = mbed_lwip_arena_alloc();
if (!ns) {
return NSAPI_ERROR_NO_SOCKET;
}
if (s->conn->pcb.tcp->state != LISTEN) {
return NSAPI_ERROR_PARAMETER;
}
err_t err = netconn_accept(s->conn, &ns->conn);
if (err != ERR_OK) {
mbed_lwip_arena_dealloc(ns);
return mbed_lwip_err_remap(err);
}
netconn_set_recvtimeout(ns->conn, 1);
*(struct lwip_socket **)handle = ns;
ip_addr_t peer_addr;
(void) netconn_peer(ns->conn, &peer_addr, port);
convert_lwip_addr_to_mbed(addr, &peer_addr);
netconn_set_nonblocking(ns->conn, true);
return 0;
}
static nsapi_error_t mbed_lwip_socket_open(nsapi_stack_t *stack, nsapi_socket_t *handle, nsapi_protocol_t proto)
{
// check if network is connected
if (lwip_connected == NSAPI_STATUS_DISCONNECTED) {
return NSAPI_ERROR_NO_CONNECTION;
}
// allocate a socket
struct lwip_socket *s = mbed_lwip_arena_alloc();
if (!s) {
return NSAPI_ERROR_NO_SOCKET;
}
enum netconn_type lwip_proto = proto == NSAPI_TCP ? NETCONN_TCP : NETCONN_UDP;
#if LWIP_IPV6
// Enable IPv6 (or dual-stack)
lwip_proto |= NETCONN_TYPE_IPV6;
#endif
s->conn = netconn_new_with_callback(lwip_proto, mbed_lwip_socket_callback);
if (!s->conn) {
mbed_lwip_arena_dealloc(s);
return NSAPI_ERROR_NO_SOCKET;
}
netconn_set_recvtimeout(s->conn, 1);
*(struct lwip_socket **)handle = s;
return 0;
}
static nsapi_error_t mbed_lwip_socket_open(nsapi_stack_t *stack, nsapi_socket_t *handle, nsapi_protocol_t proto)
{
// check if network is connected
if (!lwip_connected) {
return NSAPI_ERROR_NO_CONNECTION;
}
// allocate a socket
struct lwip_socket *s = mbed_lwip_arena_alloc();
if (!s) {
return NSAPI_ERROR_NO_SOCKET;
}
u8_t lwip_proto = proto == NSAPI_TCP ? NETCONN_TCP : NETCONN_UDP;
#if LWIP_IPV6 && LWIP_IPV4
const ip_addr_t *ip_addr;
ip_addr = mbed_lwip_get_ip_addr(true, &lwip_netif);
if (IP_IS_V6(ip_addr)) {
// Enable IPv6 (or dual-stack). LWIP dual-stack support is
// currently incomplete as of 2.0.0rc2 - eg we will only be able
// to do a UDP sendto to an address matching the type selected
// here. Matching "get_ip_addr" and DNS logic, use v4 if
// available.
lwip_proto |= NETCONN_TYPE_IPV6;
}
#elif LWIP_IPV6
lwip_proto |= NETCONN_TYPE_IPV6;
#endif
s->conn = netconn_new_with_callback(lwip_proto, mbed_lwip_socket_callback);
if (!s->conn) {
mbed_lwip_arena_dealloc(s);
return NSAPI_ERROR_NO_SOCKET;
}
netconn_set_recvtimeout(s->conn, 1);
*(struct lwip_socket **)handle = s;
return 0;
}
