Ping work and start to add socketpool

11 files changed, 679 insertions, 10 deletions

diff --git a/ports/esp32s2/Makefile b/ports/esp32s2/Makefile
index 23a97a6fe..ab470d095 100644
--- a/ports/esp32s2/Makefile
+++ b/ports/esp32s2/Makefile
@@ -85,6 +85,10 @@ INC += -Iesp-idf/components/esp_rom/include
 INC += -Iesp-idf/components/esp_wifi/include
 INC += -Iesp-idf/components/xtensa/include
 INC += -Iesp-idf/components/esp_timer/include
+INC += -Iesp-idf/components/newlib/platform_include
+INC += -Iesp-idf/components/lwip/lwip/src/include
+INC += -Iesp-idf/components/lwip/port/esp32/include
+INC += -Iesp-idf/components/lwip/include/apps/sntp
 INC += -Iesp-idf/components/soc/include
 INC += -Iesp-idf/components/soc/src/esp32s2/include
 INC += -Iesp-idf/components/soc/soc/include
diff --git a/ports/esp32s2/common-hal/wifi/Radio.c b/ports/esp32s2/common-hal/wifi/Radio.c
index 623ba9e34..49ad0592e 100644
--- a/ports/esp32s2/common-hal/wifi/Radio.c
+++ b/ports/esp32s2/common-hal/wifi/Radio.c
@@ -32,8 +32,10 @@
 #include "py/runtime.h"
 #include "shared-bindings/ipaddress/IPv4Address.h"
 #include "shared-bindings/wifi/ScannedNetworks.h"
+#include "shared-module/ipaddress/__init__.h"
 
 #include "esp-idf/components/esp_wifi/include/esp_wifi.h"
+#include "esp-idf/components/lwip/include/apps/ping/ping_sock.h"
 
 #include "esp_log.h"
 static const char *TAG = "cp radio";
@@ -154,6 +156,29 @@ mp_obj_t common_hal_wifi_radio_get_ipv4_address(wifi_radio_obj_t *self) {
 	return common_hal_ipaddress_new_ipv4address(ip_info.ip.addr);
 }
 
-mp_int_t common_hal_wifi_radio_ping(wifi_radio_obj_t *self, mp_obj_t ip_address) {
-	return 0;
+mp_int_t common_hal_wifi_radio_ping(wifi_radio_obj_t *self, mp_obj_t ip_address, mp_float_t timeout) {
+    esp_ping_config_t ping_config = ESP_PING_DEFAULT_CONFIG();
+    ipaddress_ipaddress_to_esp_idf(ip_address, &ping_config.target_addr);
+    ping_config.count = 1;
+
+    size_t timeout_ms = timeout * 1000;
+
+    esp_ping_handle_t ping;
+    esp_ping_new_session(&ping_config, NULL, &ping);
+    esp_ping_start(ping);
+
+    uint32_t received = 0;
+    uint32_t total_time_ms = 0;
+    while (received == 0 && total_time_ms < timeout_ms) {
+    	RUN_BACKGROUND_TASKS;
+    	esp_ping_get_profile(ping, ESP_PING_PROF_DURATION, &total_time_ms, sizeof(total_time_ms));
+	    esp_ping_get_profile(ping, ESP_PING_PROF_REPLY, &received, sizeof(received));
+    }
+	uint32_t elapsed_time = 0xffffffff;
+    if (received > 0) {
+	    esp_ping_get_profile(ping, ESP_PING_PROF_TIMEGAP, &elapsed_time, sizeof(elapsed_time));
+    }
+    esp_ping_delete_session(ping);
+
+	return elapsed_time;
 }
diff --git a/ports/esp32s2/esp-idf b/ports/esp32s2/esp-idf
-Subproject 739180550254d4d68335cd3b443ada8909905ba
+Subproject 01c86ed7d6f4bbbaeda0c461c5f20e3d9872b44
diff --git a/py/circuitpy_defns.mk b/py/circuitpy_defns.mk
index 1a5145c8b..c1b293b94 100644
--- a/py/circuitpy_defns.mk
+++ b/py/circuitpy_defns.mk
@@ -228,6 +228,9 @@ endif
 ifeq ($(CIRCUITPY_SHARPDISPLAY),1)
 SRC_PATTERNS += sharpdisplay/%
 endif
+ifeq ($(CIRCUITPY_SOCKETPOOL),1)
+SRC_PATTERNS += socketpool/%
+endif
 ifeq ($(CIRCUITPY_STAGE),1)
 SRC_PATTERNS += _stage/%
 endif
diff --git a/py/circuitpy_mpconfig.h b/py/circuitpy_mpconfig.h
index f2789ee58..846328dcd 100644
--- a/py/circuitpy_mpconfig.h
+++ b/py/circuitpy_mpconfig.h
@@ -573,6 +573,7 @@ extern const struct _mp_obj_module_t sdioio_module;
 #define SDIOIO_MODULE
 #endif
 
+
 #if CIRCUITPY_SHARPDISPLAY
 extern const struct _mp_obj_module_t sharpdisplay_module;
 #define SHARPDISPLAY_MODULE        { MP_OBJ_NEW_QSTR(MP_QSTR_sharpdisplay),(mp_obj_t)&sharpdisplay_module },
@@ -580,6 +581,13 @@ extern const struct _mp_obj_module_t sharpdisplay_module;
 #define SHARPDISPLAY_MODULE
 #endif
 
+#if CIRCUITPY_SOCKETPOOL
+extern const struct _mp_obj_module_t socketpool_module;
+#define SOCKETPOOL_MODULE           { MP_OBJ_NEW_QSTR(MP_QSTR_socketpool), (mp_obj_t)&socketpool_module },
+#else
+#define SOCKETPOOL_MODULE
+#endif
+
 #if CIRCUITPY_STAGE
 extern const struct _mp_obj_module_t stage_module;
 #define STAGE_MODULE           { MP_OBJ_NEW_QSTR(MP_QSTR__stage), (mp_obj_t)&stage_module },
@@ -764,6 +772,7 @@ extern const struct _mp_obj_module_t wifi_module;
     SDCARDIO_MODULE \
     SDIOIO_MODULE \
     SHARPDISPLAY_MODULE \
+    SOCKETPOOL_MODULE \
     STAGE_MODULE \
     STORAGE_MODULE \
     STRUCT_MODULE \
diff --git a/py/circuitpy_mpconfig.mk b/py/circuitpy_mpconfig.mk
index 499e87aed..2ef8feb3a 100644
--- a/py/circuitpy_mpconfig.mk
+++ b/py/circuitpy_mpconfig.mk
@@ -185,6 +185,9 @@ CFLAGS += -DCIRCUITPY_SDIOIO=$(CIRCUITPY_SDIOIO)
 CIRCUITPY_SHARPDISPLAY ?= $(CIRCUITPY_FRAMEBUFFERIO)
 CFLAGS += -DCIRCUITPY_SHARPDISPLAY=$(CIRCUITPY_SHARPDISPLAY)
 
+CIRCUITPY_SOCKETPOOL ?= 0
+CFLAGS += -DCIRCUITPY_SOCKETPOOL=$(CIRCUITPY_SOCKETPOOL)
+
 # Currently always off.
 CIRCUITPY_STAGE ?= 0
 CFLAGS += -DCIRCUITPY_STAGE=$(CIRCUITPY_STAGE)
diff --git a/shared-bindings/socketpool/__init__.c b/shared-bindings/socketpool/__init__.c
new file mode 100644
index 000000000..53ac57d11
--- /dev/null
+++ b/shared-bindings/socketpool/__init__.c
@@ -0,0 +1,603 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2014 Damien P. George
+ *               2018 Nick Moore for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "py/objtuple.h"
+#include "py/objlist.h"
+#include "py/runtime.h"
+#include "py/stream.h"
+#include "py/mperrno.h"
+#include "lib/netutils/netutils.h"
+
+#include "shared-module/network/__init__.h"
+
+//| """TCP, UDP and RAW socket support
+//|
+//| .. warning:: This module is disabled in 6.x and will removed in 7.x. Please use networking
+//|              libraries instead. (Native networking will provide a socket compatible class.)
+//|
+//| Create TCP, UDP and RAW sockets for communicating over the Internet."""
+//|
+
+STATIC const mp_obj_type_t socket_type;
+
+//| class socket:
+//|
+//|     def __init__(self, family: int, type: int, proto: int) -> None:
+//|         """Create a new socket
+//|
+//|         :param ~int family: AF_INET or AF_INET6
+//|         :param ~int type: SOCK_STREAM, SOCK_DGRAM or SOCK_RAW
+//|         :param ~int proto: IPPROTO_TCP, IPPROTO_UDP or IPPROTO_RAW (ignored)"""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
+    mp_arg_check_num(n_args, kw_args, 0, 4, false);
+
+    // create socket object (not bound to any NIC yet)
+    mod_network_socket_obj_t *s = m_new_obj_with_finaliser(mod_network_socket_obj_t);
+    s->base.type = &socket_type;
+    s->nic = MP_OBJ_NULL;
+    s->nic_type = NULL;
+    s->u_param.domain = MOD_NETWORK_AF_INET;
+    s->u_param.type = MOD_NETWORK_SOCK_STREAM;
+    s->u_param.fileno = -1;
+    if (n_args >= 1) {
+        s->u_param.domain = mp_obj_get_int(args[0]);
+        if (n_args >= 2) {
+            s->u_param.type = mp_obj_get_int(args[1]);
+            if (n_args >= 4) {
+                s->u_param.fileno = mp_obj_get_int(args[3]);
+            }
+        }
+    }
+
+    return MP_OBJ_FROM_PTR(s);
+}
+
+STATIC void socket_select_nic(mod_network_socket_obj_t *self, const byte *ip) {
+    if (self->nic == MP_OBJ_NULL) {
+        // select NIC based on IP
+        self->nic = network_module_find_nic(ip);
+        self->nic_type = (mod_network_nic_type_t*)mp_obj_get_type(self->nic);
+
+        // call the NIC to open the socket
+        int _errno;
+        if (self->nic_type->socket(self, &_errno) != 0) {
+            mp_raise_OSError(_errno);
+        }
+    }
+}
+
+//|     def bind(self, address: tuple) -> None:
+//|         """Bind a socket to an address
+//|
+//|         :param ~tuple address: tuple of (remote_address, remote_port)"""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_bind(mp_obj_t self_in, mp_obj_t addr_in) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    // get address
+    uint8_t ip[MOD_NETWORK_IPADDR_BUF_SIZE];
+    mp_uint_t port = netutils_parse_inet_addr(addr_in, ip, NETUTILS_BIG);
+
+    // check if we need to select a NIC
+    socket_select_nic(self, ip);
+
+    // call the NIC to bind the socket
+    int _errno;
+    if (self->nic_type->bind(self, ip, port, &_errno) != 0) {
+        mp_raise_OSError(_errno);
+    }
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_bind_obj, socket_bind);
+
+//|     def listen(self, backlog: int) -> None:
+//|         """Set socket to listen for incoming connections
+//|
+//|         :param ~int backlog: length of backlog queue for waiting connetions"""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_listen(mp_obj_t self_in, mp_obj_t backlog) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    if (self->nic == MP_OBJ_NULL) {
+        // not connected
+        // TODO I think we can listen even if not bound...
+        mp_raise_OSError(MP_ENOTCONN);
+    }
+
+    int _errno;
+    if (self->nic_type->listen(self, mp_obj_get_int(backlog), &_errno) != 0) {
+        mp_raise_OSError(_errno);
+    }
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_listen_obj, socket_listen);
+
+//|     def accept(self) -> tuple:
+//|         """Accept a connection on a listening socket of type SOCK_STREAM,
+//|         creating a new socket of type SOCK_STREAM.
+//|         Returns a tuple of (new_socket, remote_address)"""
+//|
+
+STATIC mp_obj_t socket_accept(mp_obj_t self_in) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    // create new socket object
+    // starts with empty NIC so that finaliser doesn't run close() method if accept() fails
+    mod_network_socket_obj_t *socket2 = m_new_obj_with_finaliser(mod_network_socket_obj_t);
+    socket2->base.type = &socket_type;
+    socket2->nic = MP_OBJ_NULL;
+    socket2->nic_type = NULL;
+
+    // accept incoming connection
+    uint8_t ip[MOD_NETWORK_IPADDR_BUF_SIZE];
+    mp_uint_t port;
+    int _errno;
+    if (self->nic_type->accept(self, socket2, ip, &port, &_errno) != 0) {
+        mp_raise_OSError(_errno);
+    }
+
+    // new socket has valid state, so set the NIC to the same as parent
+    socket2->nic = self->nic;
+    socket2->nic_type = self->nic_type;
+
+    // make the return value
+    mp_obj_tuple_t *client = MP_OBJ_TO_PTR(mp_obj_new_tuple(2, NULL));
+    client->items[0] = MP_OBJ_FROM_PTR(socket2);
+    client->items[1] = netutils_format_inet_addr(ip, port, NETUTILS_BIG);
+
+    return MP_OBJ_FROM_PTR(client);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(socket_accept_obj, socket_accept);
+
+//|     def connect(self, address: tuple) -> None:
+//|         """Connect a socket to a remote address
+//|
+//|         :param ~tuple address: tuple of (remote_address, remote_port)"""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_connect(mp_obj_t self_in, mp_obj_t addr_in) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    // get address
+    uint8_t ip[MOD_NETWORK_IPADDR_BUF_SIZE];
+    mp_uint_t port = netutils_parse_inet_addr(addr_in, ip, NETUTILS_BIG);
+
+    // check if we need to select a NIC
+    socket_select_nic(self, ip);
+
+    // call the NIC to connect the socket
+    int _errno;
+    if (self->nic_type->connect(self, ip, port, &_errno) != 0) {
+        mp_raise_OSError(_errno);
+    }
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_connect_obj, socket_connect);
+
+//|     def send(self, bytes: ReadableBuffer) -> int:
+//|         """Send some bytes to the connected remote address.
+//|         Suits sockets of type SOCK_STREAM
+//|
+//|         :param ~bytes bytes: some bytes to send"""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_send(mp_obj_t self_in, mp_obj_t buf_in) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    if (self->nic == MP_OBJ_NULL) {
+        // not connected
+        mp_raise_OSError(MP_EPIPE);
+    }
+    mp_buffer_info_t bufinfo;
+    mp_get_buffer_raise(buf_in, &bufinfo, MP_BUFFER_READ);
+    int _errno;
+    mp_int_t ret = self->nic_type->send(self, bufinfo.buf, bufinfo.len, &_errno);
+    if (ret == -1) {
+        mp_raise_OSError(_errno);
+    }
+    return mp_obj_new_int_from_uint(ret);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_send_obj, socket_send);
+
+
+// helper function for socket_recv and socket_recv_into to handle common operations of both
+STATIC mp_int_t _socket_recv_into(mod_network_socket_obj_t *sock, byte *buf, mp_int_t len) {
+    int _errno;
+    mp_int_t ret = sock->nic_type->recv(sock, buf, len, &_errno);
+    if (ret == -1) {
+        mp_raise_OSError(_errno);
+    }
+    return ret;
+}
+
+
+//|     def recv_into(self, buffer: WriteableBuffer, bufsize: int) -> int:
+//|         """Reads some bytes from the connected remote address, writing
+//|         into the provided buffer. If bufsize <= len(buffer) is given,
+//|         a maximum of bufsize bytes will be read into the buffer. If no
+//|         valid value is given for bufsize, the default is the length of
+//|         the given buffer.
+//|
+//|         Suits sockets of type SOCK_STREAM
+//|         Returns an int of number of bytes read.
+//|
+//|         :param bytearray buffer: buffer to receive into
+//|         :param int bufsize: optionally, a maximum number of bytes to read."""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_recv_into(size_t n_args, const mp_obj_t *args) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(args[0]);
+    if (self->nic == MP_OBJ_NULL) {
+        // not connected
+        mp_raise_OSError(MP_ENOTCONN);
+    }
+    mp_buffer_info_t bufinfo;
+    mp_get_buffer_raise(args[1], &bufinfo, MP_BUFFER_WRITE);
+    mp_int_t len = bufinfo.len;
+    if (n_args == 3) {
+        mp_int_t given_len = mp_obj_get_int(args[2]);
+        if (given_len < len) {
+            len = given_len;
+        }
+    }
+
+    mp_int_t ret = _socket_recv_into(self, (byte*)bufinfo.buf, len);
+    return mp_obj_new_int_from_uint(ret);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_recv_into_obj, 2, 3, socket_recv_into);
+
+//|     def recv(self, bufsize: int) -> bytes:
+//|         """Reads some bytes from the connected remote address.
+//|         Suits sockets of type SOCK_STREAM
+//|         Returns a bytes() of length <= bufsize
+//|
+//|         :param ~int bufsize: maximum number of bytes to receive"""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_recv(mp_obj_t self_in, mp_obj_t len_in) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    if (self->nic == MP_OBJ_NULL) {
+        // not connected
+        mp_raise_OSError(MP_ENOTCONN);
+    }
+    mp_int_t len = mp_obj_get_int(len_in);
+    vstr_t vstr;
+    vstr_init_len(&vstr, len);
+    mp_int_t ret = _socket_recv_into(self, (byte*)vstr.buf, len);
+    if (ret == 0) {
+        return mp_const_empty_bytes;
+    }
+    vstr.len = ret;
+    return mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_recv_obj, socket_recv);
+
+//|     def sendto(self, bytes: ReadableBuffer, address: tuple) -> int:
+//|         """Send some bytes to a specific address.
+//|         Suits sockets of type SOCK_DGRAM
+//|
+//|         :param ~bytes bytes: some bytes to send
+//|         :param ~tuple address: tuple of (remote_address, remote_port)"""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_sendto(mp_obj_t self_in, mp_obj_t data_in, mp_obj_t addr_in) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    // get the data
+    mp_buffer_info_t bufinfo;
+    mp_get_buffer_raise(data_in, &bufinfo, MP_BUFFER_READ);
+
+    // get address
+    uint8_t ip[MOD_NETWORK_IPADDR_BUF_SIZE];
+    mp_uint_t port = netutils_parse_inet_addr(addr_in, ip, NETUTILS_BIG);
+
+    // check if we need to select a NIC
+    socket_select_nic(self, ip);
+
+    // call the NIC to sendto
+    int _errno;
+    mp_int_t ret = self->nic_type->sendto(self, bufinfo.buf, bufinfo.len, ip, port, &_errno);
+    if (ret == -1) {
+        mp_raise_OSError(_errno);
+    }
+
+    return mp_obj_new_int(ret);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_3(socket_sendto_obj, socket_sendto);
+
+//|     def recvfrom(self, bufsize: int) -> Tuple[bytes, tuple]:
+//|         """Reads some bytes from the connected remote address.
+//|         Suits sockets of type SOCK_STREAM
+//|
+//|         Returns a tuple containing
+//|         * a bytes() of length <= bufsize
+//|         * a remote_address, which is a tuple of ip address and port number
+//|
+//|         :param ~int bufsize: maximum number of bytes to receive"""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_recvfrom(mp_obj_t self_in, mp_obj_t len_in) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    if (self->nic == MP_OBJ_NULL) {
+        // not connected
+        mp_raise_OSError(MP_ENOTCONN);
+    }
+    vstr_t vstr;
+    vstr_init_len(&vstr, mp_obj_get_int(len_in));
+    byte ip[4];
+    mp_uint_t port;
+    int _errno;
+    mp_int_t ret = self->nic_type->recvfrom(self, (byte*)vstr.buf, vstr.len, ip, &port, &_errno);
+    if (ret == -1) {
+        mp_raise_OSError(_errno);
+    }
+    mp_obj_t tuple[2];
+    if (ret == 0) {
+        tuple[0] = mp_const_empty_bytes;
+    } else {
+        vstr.len = ret;
+        tuple[0] = mp_obj_new_str_from_vstr(&mp_type_bytes, &vstr);
+    }
+    tuple[1] = netutils_format_inet_addr(ip, port, NETUTILS_BIG);
+    return mp_obj_new_tuple(2, tuple);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_recvfrom_obj, socket_recvfrom);
+
+//|     def setsockopt(self, level: int, optname: int, value: int) -> None:
+//|         """Sets socket options"""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_setsockopt(size_t n_args, const mp_obj_t *args) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(args[0]);
+
+    mp_int_t level = mp_obj_get_int(args[1]);
+    mp_int_t opt = mp_obj_get_int(args[2]);
+
+    const void *optval;
+    mp_uint_t optlen;
+    mp_int_t val;
+    if (mp_obj_is_integer(args[3])) {
+        val = mp_obj_get_int_truncated(args[3]);
+        optval = &val;
+        optlen = sizeof(val);
+    } else {
+        mp_buffer_info_t bufinfo;
+        mp_get_buffer_raise(args[3], &bufinfo, MP_BUFFER_READ);
+        optval = bufinfo.buf;
+        optlen = bufinfo.len;
+    }
+
+    int _errno;
+    if (self->nic_type->setsockopt(self, level, opt, optval, optlen, &_errno) != 0) {
+        mp_raise_OSError(_errno);
+    }
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_setsockopt_obj, 4, 4, socket_setsockopt);
+
+//|     def settimeout(self, value: int) -> None:
+//|         """Set the timeout value for this socket.
+//|
+//|         :param ~int value: timeout in seconds.  0 means non-blocking.  None means block indefinitely."""
+//|         ...
+//|
+
+STATIC mp_obj_t socket_settimeout(mp_obj_t self_in, mp_obj_t timeout_in) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    if (self->nic == MP_OBJ_NULL) {
+        // not connected
+        mp_raise_OSError(MP_ENOTCONN);
+    }
+    mp_uint_t timeout;
+    if (timeout_in == mp_const_none) {
+        timeout = -1;
+    } else {
+        #if MICROPY_PY_BUILTINS_FLOAT
+        timeout = 1000 * mp_obj_get_float(timeout_in);
+        #else
+        timeout = 1000 * mp_obj_get_int(timeout_in);
+        #endif
+    }
+    int _errno;
+    if (self->nic_type->settimeout(self, timeout, &_errno) != 0) {
+        mp_raise_OSError(_errno);
+    }
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_settimeout_obj, socket_settimeout);
+
+//|     def setblocking(self, flag: bool) -> Optional[int]:
+//|         """Set the blocking behaviour of this socket.
+//|
+//|         :param ~bool flag: False means non-blocking, True means block indefinitely."""
+//|         ...
+//|
+
+// method socket.setblocking(flag)
+STATIC mp_obj_t socket_setblocking(mp_obj_t self_in, mp_obj_t blocking) {
+    if (mp_obj_is_true(blocking)) {
+        return socket_settimeout(self_in, mp_const_none);
+    } else {
+        return socket_settimeout(self_in, MP_OBJ_NEW_SMALL_INT(0));
+    }
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_setblocking_obj, socket_setblocking);
+
+STATIC const mp_rom_map_elem_t socket_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&mp_stream_close_obj) },
+    { MP_ROM_QSTR(MP_QSTR_close), MP_ROM_PTR(&mp_stream_close_obj) },
+    { MP_ROM_QSTR(MP_QSTR_bind), MP_ROM_PTR(&socket_bind_obj) },
+    { MP_ROM_QSTR(MP_QSTR_listen), MP_ROM_PTR(&socket_listen_obj) },
+    { MP_ROM_QSTR(MP_QSTR_accept), MP_ROM_PTR(&socket_accept_obj) },
+    { MP_ROM_QSTR(MP_QSTR_connect), MP_ROM_PTR(&socket_connect_obj) },
+    { MP_ROM_QSTR(MP_QSTR_send), MP_ROM_PTR(&socket_send_obj) },
+    { MP_ROM_QSTR(MP_QSTR_recv), MP_ROM_PTR(&socket_recv_obj) },
+    { MP_ROM_QSTR(MP_QSTR_sendto), MP_ROM_PTR(&socket_sendto_obj) },
+    { MP_ROM_QSTR(MP_QSTR_recvfrom), MP_ROM_PTR(&socket_recvfrom_obj) },
+    { MP_ROM_QSTR(MP_QSTR_recv_into), MP_ROM_PTR(&socket_recv_into_obj) },
+    { MP_ROM_QSTR(MP_QSTR_setsockopt), MP_ROM_PTR(&socket_setsockopt_obj) },
+    { MP_ROM_QSTR(MP_QSTR_settimeout), MP_ROM_PTR(&socket_settimeout_obj) },
+    { MP_ROM_QSTR(MP_QSTR_setblocking), MP_ROM_PTR(&socket_setblocking_obj) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(socket_locals_dict, socket_locals_dict_table);
+
+mp_uint_t socket_ioctl(mp_obj_t self_in, mp_uint_t request, uintptr_t arg, int *errcode) {
+    mod_network_socket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    if (request == MP_STREAM_CLOSE) {
+        if (self->nic != MP_OBJ_NULL) {
+            self->nic_type->close(self);
+            self->nic = MP_OBJ_NULL;
+        }
+        return 0;
+    }
+    return self->nic_type->ioctl(self, request, arg, errcode);
+}
+
+STATIC const mp_stream_p_t socket_stream_p = {
+    MP_PROTO_IMPLEMENT(MP_QSTR_protocol_stream)
+    .ioctl = socket_ioctl,
+    .is_text = false,
+};
+
+STATIC const mp_obj_type_t socket_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_socket,
+    .make_new = socket_make_new,
+    .protocol = &socket_stream_p,
+    .locals_dict = (mp_obj_dict_t*)&socket_locals_dict,
+};
+
+//| def getaddrinfo(host: str, port: int) -> tuple:
+//|     """Gets the address information for a hostname and port
+//|
+//|     Returns the appropriate family, socket type, socket protocol and
+//|     address information to call socket.socket() and socket.connect() with,
+//|     as a tuple."""
+//|     ...
+//|
+
+STATIC mp_obj_t socket_getaddrinfo(mp_obj_t host_in, mp_obj_t port_in) {
+    size_t hlen;
+    const char *host = mp_obj_str_get_data(host_in, &hlen);
+    mp_int_t port = mp_obj_get_int(port_in);
+    uint8_t out_ip[MOD_NETWORK_IPADDR_BUF_SIZE];
+    bool have_ip = false;
+
+    if (hlen > 0) {
+        // check if host is already in IP form
+        nlr_buf_t nlr;
+        if (nlr_push(&nlr) == 0) {
+            netutils_parse_ipv4_addr(host_in, out_ip, NETUTILS_BIG);
+            have_ip = true;
+            nlr_pop();
+        } else {
+            // swallow exception: host was not in IP form so need to do DNS lookup
+        }
+    }
+
+    if (!have_ip) {
+        // find a NIC that can do a name lookup
+        for (mp_uint_t i = 0; i < MP_STATE_PORT(mod_network_nic_list).len; i++) {
+            mp_obj_t nic = MP_STATE_PORT(mod_network_nic_list).items[i];
+            mod_network_nic_type_t *nic_type = (mod_network_nic_type_t*)mp_obj_get_type(nic);
+            if (nic_type->gethostbyname != NULL) {
+                int ret = nic_type->gethostbyname(nic, host, hlen, out_ip);
+                if (ret != 0) {
+                    mp_raise_OSError(ret);
+                }
+                have_ip = true;
+                break;
+            }
+        }
+    }
+
+    if (!have_ip) {
+        nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, translate("no available NIC")));
+    }
+
+    mp_obj_tuple_t *tuple = MP_OBJ_TO_PTR(mp_obj_new_tuple(5, NULL));
+    tuple->items[0] = MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_AF_INET);
+    tuple->items[1] = MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_SOCK_STREAM);
+    tuple->items[2] = MP_OBJ_NEW_SMALL_INT(0);
+    tuple->items[3] = MP_OBJ_NEW_QSTR(MP_QSTR_);
+    tuple->items[4] = netutils_format_inet_addr(out_ip, port, NETUTILS_BIG);
+    return mp_obj_new_list(1, (mp_obj_t*)&tuple);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_getaddrinfo_obj, socket_getaddrinfo);
+
+STATIC const mp_rom_map_elem_t socket_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_usocket) },
+
+    { MP_ROM_QSTR(MP_QSTR_socket), MP_ROM_PTR(&socket_type) },
+    { MP_ROM_QSTR(MP_QSTR_getaddrinfo), MP_ROM_PTR(&socket_getaddrinfo_obj) },
+
+    // class constants
+    { MP_ROM_QSTR(MP_QSTR_AF_INET), MP_ROM_INT(MOD_NETWORK_AF_INET) },
+    { MP_ROM_QSTR(MP_QSTR_AF_INET6), MP_ROM_INT(MOD_NETWORK_AF_INET6) },
+
+    { MP_ROM_QSTR(MP_QSTR_SOCK_STREAM), MP_ROM_INT(MOD_NETWORK_SOCK_STREAM) },
+    { MP_ROM_QSTR(MP_QSTR_SOCK_DGRAM), MP_ROM_INT(MOD_NETWORK_SOCK_DGRAM) },
+    { MP_ROM_QSTR(MP_QSTR_SOCK_RAW), MP_ROM_INT(MOD_NETWORK_SOCK_RAW) },
+
+    /*
+    { MP_ROM_QSTR(MP_QSTR_IPPROTO_IP), MP_ROM_INT(MOD_NETWORK_IPPROTO_IP) },
+    { MP_ROM_QSTR(MP_QSTR_IPPROTO_ICMP), MP_ROM_INT(MOD_NETWORK_IPPROTO_ICMP) },
+    { MP_ROM_QSTR(MP_QSTR_IPPROTO_IPV4), MP_ROM_INT(MOD_NETWORK_IPPROTO_IPV4) },
+    { MP_ROM_QSTR(MP_QSTR_IPPROTO_TCP), MP_ROM_INT(MOD_NETWORK_IPPROTO_TCP) },
+    { MP_ROM_QSTR(MP_QSTR_IPPROTO_UDP), MP_ROM_INT(MOD_NETWORK_IPPROTO_UDP) },
+    { MP_ROM_QSTR(MP_QSTR_IPPROTO_IPV6), MP_ROM_INT(MOD_NETWORK_IPPROTO_IPV6) },
+    { MP_ROM_QSTR(MP_QSTR_IPPROTO_RAW), MP_ROM_INT(MOD_NETWORK_IPPROTO_RAW) },
+    */
+};
+
+STATIC MP_DEFINE_CONST_DICT(socket_globals, socket_globals_table);
+
+const mp_obj_module_t socket_module = {
+    .base = { &mp_type_module },
+    .globals = (mp_obj_dict_t*)&socket_globals,
+};
diff --git a/shared-bindings/wifi/Radio.c b/shared-bindings/wifi/Radio.c
index 1d1423573..6884b83de 100644
--- a/shared-bindings/wifi/Radio.c
+++ b/shared-bindings/wifi/Radio.c
@@ -158,18 +158,31 @@ const mp_obj_property_t wifi_radio_ipv4_address_obj = {
                (mp_obj_t)&mp_const_none_obj },
 };
 
-//|     def ping(self, ip) -> int:
-//|         """Ping an IP to test connectivity. Returns echo time in milliseconds."""
+//|     def ping(self, ip, *, timeout: float = 0.5) -> float:
+//|         """Ping an IP to test connectivity. Returns echo time in seconds."""
 //|         ...
 //|
-STATIC mp_obj_t wifi_radio_ping(mp_obj_t self_in, mp_obj_t ip_address) {
-    wifi_radio_obj_t *self = MP_OBJ_TO_PTR(self_in);
+STATIC mp_obj_t wifi_radio_ping(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    enum { ARG_ip, ARG_timeout };
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_ip, MP_ARG_REQUIRED | MP_ARG_OBJ, },
+        { MP_QSTR_timeout, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
+    };
 
-    common_hal_wifi_radio_ping(self, ip_address);
+    wifi_radio_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
 
-    return mp_const_none;
+    mp_float_t timeout = 0.5;
+    if (args[ARG_timeout].u_obj != mp_const_none) {
+        timeout = mp_obj_get_float(args[ARG_timeout].u_obj);
+    }
+
+    mp_int_t time_ms = common_hal_wifi_radio_ping(self, args[ARG_ip].u_obj, timeout);
+
+    return mp_obj_new_float(time_ms / 1000);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_2(wifi_radio_ping_obj, wifi_radio_ping);
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(wifi_radio_ping_obj, 1, wifi_radio_ping);
 
 STATIC const mp_rom_map_elem_t wifi_radio_locals_dict_table[] = {
     { MP_ROM_QSTR(MP_QSTR_enabled), MP_ROM_PTR(&wifi_radio_enabled_obj) },
diff --git a/shared-bindings/wifi/Radio.h b/shared-bindings/wifi/Radio.h
index 3890885ae..c83a135a6 100644
--- a/shared-bindings/wifi/Radio.h
+++ b/shared-bindings/wifi/Radio.h
@@ -47,6 +47,6 @@ extern bool common_hal_wifi_radio_connect(wifi_radio_obj_t *self, uint8_t* ssid,
 
 extern mp_obj_t common_hal_wifi_radio_get_ipv4_address(wifi_radio_obj_t *self);
 
-extern mp_int_t common_hal_wifi_radio_ping(wifi_radio_obj_t *self, mp_obj_t ip_address);
+extern mp_int_t common_hal_wifi_radio_ping(wifi_radio_obj_t *self, mp_obj_t ip_address, mp_float_t timeout);
 
 #endif // MICROPY_INCLUDED_SHARED_BINDINGS_WIFI_RADIO_H
diff --git a/shared-module/ipaddress/__init__.c b/shared-module/ipaddress/__init__.c
index e5d857d5d..031f317aa 100644
--- a/shared-module/ipaddress/__init__.c
+++ b/shared-module/ipaddress/__init__.c
@@ -33,3 +33,8 @@ mp_obj_t common_hal_ipaddress_new_ipv4address(mp_int_t value) {
     common_hal_ipaddress_ipv4address_construct(self, (uint8_t*) &value, 4);
     return self;
 }
+
+
+void ipaddress_ipaddress_to_esp_idf(mp_obj_t ip_address, ip_addr_t* esp_ip_address) {
+    // FIX THIS TOMORROW!
+}
diff --git a/shared-module/ipaddress/__init__.h b/shared-module/ipaddress/__init__.h
index 7d5f2c220..9f1e00777 100644
--- a/shared-module/ipaddress/__init__.h
+++ b/shared-module/ipaddress/__init__.h
@@ -31,6 +31,10 @@
 
 #include "py/obj.h"
 
+#include "lwip/api.h"
+
 mp_obj_t common_hal_ipaddress_new_ipv4(uint32_t value);
 
+void ipaddress_ipaddress_to_esp_idf(mp_obj_t ip_address, ip_addr_t* esp_ip_address);
+
 #endif // MICROPY_INCLUDED_SHARED_MODULE_IPADDRESS___INIT___H