add circuitpython code

6 files changed, 675 insertions, 0 deletions

diff --git a/circuitpython/shared-bindings/ssl/SSLContext.c b/circuitpython/shared-bindings/ssl/SSLContext.c
new file mode 100644
index 0000000..5dfa5e5
--- /dev/null
+++ b/circuitpython/shared-bindings/ssl/SSLContext.c
@@ -0,0 +1,158 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2020 Scott Shawcroft 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/objproperty.h"
+#include "py/runtime.h"
+#include "py/mperrno.h"
+
+#include "shared-bindings/ssl/SSLContext.h"
+
+//| class SSLContext:
+//|     """Settings related to SSL that can be applied to a socket by wrapping it.
+//|        This is useful to provide SSL certificates to specific connections
+//|        rather than all of them."""
+//|
+
+STATIC mp_obj_t ssl_sslcontext_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
+    mp_arg_check_num(n_args, n_kw, 0, 1, false);
+
+    ssl_sslcontext_obj_t *s = m_new_obj(ssl_sslcontext_obj_t);
+    s->base.type = &ssl_sslcontext_type;
+
+    common_hal_ssl_sslcontext_construct(s);
+
+    return MP_OBJ_FROM_PTR(s);
+}
+
+//|     def load_verify_locations(self, cadata: Optional[str] = None) -> None:
+//|         """Load a set of certification authority (CA) certificates used to validate
+//|            other peers' certificates."""
+//|
+
+STATIC mp_obj_t ssl_sslcontext_load_verify_locations(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    enum { ARG_cadata };
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_cadata, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
+    };
+    ssl_sslcontext_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);
+
+    const char *cadata = mp_obj_str_get_str(args[ARG_cadata].u_obj);
+
+    common_hal_ssl_sslcontext_load_verify_locations(self, cadata);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(ssl_sslcontext_load_verify_locations_obj, 1, ssl_sslcontext_load_verify_locations);
+
+//|     def set_default_verify_paths(self) -> None:
+//|         """Load a set of default certification authority (CA) certificates."""
+//|
+
+STATIC mp_obj_t ssl_sslcontext_set_default_verify_paths(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    ssl_sslcontext_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
+
+    common_hal_ssl_sslcontext_set_default_verify_paths(self);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(ssl_sslcontext_set_default_verify_paths_obj, 1, ssl_sslcontext_set_default_verify_paths);
+
+//|     check_hostname: bool
+//|     """Whether to match the peer certificate's hostname."""
+//|
+
+STATIC mp_obj_t ssl_sslcontext_get_check_hostname(mp_obj_t self_in) {
+    ssl_sslcontext_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    return mp_obj_new_bool(common_hal_ssl_sslcontext_get_check_hostname(self));
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(ssl_sslcontext_get_check_hostname_obj, ssl_sslcontext_get_check_hostname);
+
+STATIC mp_obj_t ssl_sslcontext_set_check_hostname(mp_obj_t self_in, mp_obj_t value) {
+    ssl_sslcontext_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    common_hal_ssl_sslcontext_set_check_hostname(self, mp_obj_is_true(value));
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(ssl_sslcontext_set_check_hostname_obj, ssl_sslcontext_set_check_hostname);
+
+MP_PROPERTY_GETSET(ssl_sslcontext_check_hostname_obj,
+    (mp_obj_t)&ssl_sslcontext_get_check_hostname_obj,
+    (mp_obj_t)&ssl_sslcontext_set_check_hostname_obj);
+
+//|     def wrap_socket(self, sock: socketpool.Socket, *, server_side: bool = False, server_hostname: Optional[str] = None) -> ssl.SSLSocket:
+//|         """Wraps the socket into a socket-compatible class that handles SSL negotiation.
+//|            The socket must be of type SOCK_STREAM."""
+//|
+
+STATIC mp_obj_t ssl_sslcontext_wrap_socket(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    enum { ARG_sock, ARG_server_side, ARG_server_hostname };
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_sock, MP_ARG_OBJ | MP_ARG_REQUIRED },
+        { MP_QSTR_server_side, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
+        { MP_QSTR_server_hostname, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
+    };
+    ssl_sslcontext_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);
+
+    const char *server_hostname = NULL;
+    if (args[ARG_server_hostname].u_obj != mp_const_none) {
+        server_hostname = mp_obj_str_get_str(args[ARG_server_hostname].u_obj);
+    }
+    bool server_side = args[ARG_server_side].u_bool;
+    if (server_side && server_hostname != NULL) {
+        mp_raise_ValueError(translate("Server side context cannot have hostname"));
+    }
+
+    socketpool_socket_obj_t *sock = args[ARG_sock].u_obj;
+
+    return common_hal_ssl_sslcontext_wrap_socket(self, sock, server_side, server_hostname);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(ssl_sslcontext_wrap_socket_obj, 1, ssl_sslcontext_wrap_socket);
+
+STATIC const mp_rom_map_elem_t ssl_sslcontext_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_wrap_socket), MP_ROM_PTR(&ssl_sslcontext_wrap_socket_obj) },
+    { MP_ROM_QSTR(MP_QSTR_load_verify_locations), MP_ROM_PTR(&ssl_sslcontext_load_verify_locations_obj) },
+    { MP_ROM_QSTR(MP_QSTR_set_default_verify_paths), MP_ROM_PTR(&ssl_sslcontext_set_default_verify_paths_obj) },
+    { MP_ROM_QSTR(MP_QSTR_check_hostname), MP_ROM_PTR(&ssl_sslcontext_check_hostname_obj) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(ssl_sslcontext_locals_dict, ssl_sslcontext_locals_dict_table);
+
+const mp_obj_type_t ssl_sslcontext_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_SSLContext,
+    .make_new = ssl_sslcontext_make_new,
+    .locals_dict = (mp_obj_dict_t *)&ssl_sslcontext_locals_dict,
+};
diff --git a/circuitpython/shared-bindings/ssl/SSLContext.h b/circuitpython/shared-bindings/ssl/SSLContext.h
new file mode 100644
index 0000000..ef04f25
--- /dev/null
+++ b/circuitpython/shared-bindings/ssl/SSLContext.h
@@ -0,0 +1,50 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Scott Shawcroft 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.
+ */
+
+#ifndef MICROPY_INCLUDED_SHARED_BINDINGS_SSL_SSLCONTEXT_H
+#define MICROPY_INCLUDED_SHARED_BINDINGS_SSL_SSLCONTEXT_H
+
+#include "common-hal/ssl/SSLContext.h"
+
+#include "shared-bindings/socketpool/Socket.h"
+#include "shared-bindings/ssl/SSLSocket.h"
+
+extern const mp_obj_type_t ssl_sslcontext_type;
+
+void common_hal_ssl_sslcontext_construct(ssl_sslcontext_obj_t *self);
+
+ssl_sslsocket_obj_t *common_hal_ssl_sslcontext_wrap_socket(ssl_sslcontext_obj_t *self,
+    socketpool_socket_obj_t *sock, bool server_side, const char *server_hostname);
+
+void common_hal_ssl_sslcontext_load_verify_locations(ssl_sslcontext_obj_t *self,
+    const char *cadata);
+
+void common_hal_ssl_sslcontext_set_default_verify_paths(ssl_sslcontext_obj_t *self);
+
+bool common_hal_ssl_sslcontext_get_check_hostname(ssl_sslcontext_obj_t *self);
+void common_hal_ssl_sslcontext_set_check_hostname(ssl_sslcontext_obj_t *self, bool value);
+
+#endif // MICROPY_INCLUDED_SHARED_BINDINGS_SSL_SSLCONTEXT_H
diff --git a/circuitpython/shared-bindings/ssl/SSLSocket.c b/circuitpython/shared-bindings/ssl/SSLSocket.c
new file mode 100644
index 0000000..630ab28
--- /dev/null
+++ b/circuitpython/shared-bindings/ssl/SSLSocket.c
@@ -0,0 +1,318 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Lucian Copeland 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 "shared-bindings/ssl/SSLSocket.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include "shared/runtime/context_manager_helpers.h"
+#include "py/objtuple.h"
+#include "py/objlist.h"
+#include "py/runtime.h"
+#include "py/mperrno.h"
+
+#include "shared/netutils/netutils.h"
+
+//| class SSLSocket:
+//|     """Implements TLS security on a subset of `socketpool.Socket` functions. Cannot be created
+//|        directly. Instead, call `wrap_socket` on an existing socket object.
+//|
+//|        Provides a subset of CPython's `ssl.SSLSocket` API. It only implements the versions of
+//|        recv that do not allocate bytes objects."""
+//|
+
+//|     def __hash__(self) -> int:
+//|         """Returns a hash for the Socket."""
+//|         ...
+//|
+// Provided by mp_generic_unary_op().
+
+//|     def __enter__(self) -> SSLSocket:
+//|         """No-op used by Context Managers."""
+//|         ...
+//|
+//  Provided by context manager helper.
+
+//|     def __exit__(self) -> None:
+//|         """Automatically closes the Socket when exiting a context. See
+//|         :ref:`lifetime-and-contextmanagers` for more info."""
+//|         ...
+//|
+STATIC mp_obj_t ssl_sslsocket___exit__(size_t n_args, const mp_obj_t *args) {
+    (void)n_args;
+    common_hal_ssl_sslsocket_close(args[0]);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(ssl_sslsocket___exit___obj, 4, 4, ssl_sslsocket___exit__);
+
+//|     def accept(self) -> Tuple[SSLSocket, Tuple[str, int]]:
+//|         """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 ssl_sslsocket_accept(mp_obj_t self_in) {
+    ssl_sslsocket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    uint8_t ip[4];
+    uint32_t port;
+
+    ssl_sslsocket_obj_t *sslsock = common_hal_ssl_sslsocket_accept(self, ip, &port);
+
+    mp_obj_t tuple_contents[2];
+    tuple_contents[0] = MP_OBJ_FROM_PTR(sslsock);
+    tuple_contents[1] = netutils_format_inet_addr(ip, port, NETUTILS_BIG);
+    return mp_obj_new_tuple(2, tuple_contents);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(ssl_sslsocket_accept_obj, ssl_sslsocket_accept);
+
+//|     def bind(self, address: Tuple[str, int]) -> None:
+//|         """Bind a socket to an address
+//|
+//|         :param ~tuple address: tuple of (remote_address, remote_port)"""
+//|         ...
+//|
+STATIC mp_obj_t ssl_sslsocket_bind(mp_obj_t self_in, mp_obj_t addr_in) {
+    ssl_sslsocket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    mp_obj_t *addr_items;
+    mp_obj_get_array_fixed_n(addr_in, 2, &addr_items);
+
+    size_t hostlen;
+    const char *host = mp_obj_str_get_data(addr_items[0], &hostlen);
+    mp_int_t port = mp_obj_get_int(addr_items[1]);
+    if (port < 0) {
+        mp_raise_ValueError(translate("port must be >= 0"));
+    }
+
+    bool ok = common_hal_ssl_sslsocket_bind(self, host, hostlen, (uint32_t)port);
+    if (!ok) {
+        mp_raise_ValueError(translate("Error: Failure to bind"));
+    }
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(ssl_sslsocket_bind_obj, ssl_sslsocket_bind);
+
+//|     def close(self) -> None:
+//|         """Closes this Socket"""
+//|
+STATIC mp_obj_t ssl_sslsocket_close(mp_obj_t self_in) {
+    ssl_sslsocket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    common_hal_ssl_sslsocket_close(self);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(ssl_sslsocket_close_obj, ssl_sslsocket_close);
+
+//|     def connect(self, address: Tuple[str, int]) -> None:
+//|         """Connect a socket to a remote address
+//|
+//|         :param ~tuple address: tuple of (remote_address, remote_port)"""
+//|         ...
+//|
+STATIC mp_obj_t ssl_sslsocket_connect(mp_obj_t self_in, mp_obj_t addr_in) {
+    ssl_sslsocket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    mp_obj_t *addr_items;
+    mp_obj_get_array_fixed_n(addr_in, 2, &addr_items);
+
+    size_t hostlen;
+    const char *host = mp_obj_str_get_data(addr_items[0], &hostlen);
+    mp_int_t port = mp_obj_get_int(addr_items[1]);
+    if (port < 0) {
+        mp_raise_ValueError(translate("port must be >= 0"));
+    }
+
+    common_hal_ssl_sslsocket_connect(self, host, hostlen, (uint32_t)port);
+
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(ssl_sslsocket_connect_obj, ssl_sslsocket_connect);
+
+//|     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 ssl_sslsocket_listen(mp_obj_t self_in, mp_obj_t backlog_in) {
+    ssl_sslsocket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+
+    int backlog = mp_obj_get_int(backlog_in);
+
+    common_hal_ssl_sslsocket_listen(self, backlog);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(ssl_sslsocket_listen_obj, ssl_sslsocket_listen);
+
+//|     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 ssl_sslsocket_recv_into(size_t n_args, const mp_obj_t *args) {
+    ssl_sslsocket_obj_t *self = MP_OBJ_TO_PTR(args[0]);
+    if (common_hal_ssl_sslsocket_get_closed(self)) {
+        // Bad file number.
+        mp_raise_OSError(MP_EBADF);
+    }
+    // if (!common_hal_ssl_sslsocket_get_connected(self)) {
+    //     // 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) {
+            mp_raise_ValueError(translate("buffer too small for requested bytes"));
+        }
+        if (given_len > 0 && given_len < len) {
+            len = given_len;
+        }
+    }
+
+    if (len == 0) {
+        return MP_OBJ_NEW_SMALL_INT(0);
+    }
+
+    mp_int_t ret = common_hal_ssl_sslsocket_recv_into(self, (byte *)bufinfo.buf, len);
+    return mp_obj_new_int_from_uint(ret);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(ssl_sslsocket_recv_into_obj, 2, 3, ssl_sslsocket_recv_into);
+
+//|     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 ssl_sslsocket_send(mp_obj_t self_in, mp_obj_t buf_in) {
+    ssl_sslsocket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    if (common_hal_ssl_sslsocket_get_closed(self)) {
+        // Bad file number.
+        mp_raise_OSError(MP_EBADF);
+    }
+    if (!common_hal_ssl_sslsocket_get_connected(self)) {
+        mp_raise_BrokenPipeError();
+    }
+    mp_buffer_info_t bufinfo;
+    mp_get_buffer_raise(buf_in, &bufinfo, MP_BUFFER_READ);
+    mp_int_t ret = common_hal_ssl_sslsocket_send(self, bufinfo.buf, bufinfo.len);
+    if (ret == -1) {
+        mp_raise_BrokenPipeError();
+    }
+    return mp_obj_new_int_from_uint(ret);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(ssl_sslsocket_send_obj, ssl_sslsocket_send);
+
+// //|     def setsockopt(self, level: int, optname: int, value: int) -> None:
+// //|         """Sets socket options"""
+// //|         ...
+// //|
+// STATIC mp_obj_t ssl_sslsocket_setsockopt(size_t n_args, const mp_obj_t *args) {
+// }
+// STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(ssl_sslsocket_setsockopt_obj, 4, 4, ssl_sslsocket_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 ssl_sslsocket_settimeout(mp_obj_t self_in, mp_obj_t timeout_in) {
+    ssl_sslsocket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    mp_uint_t timeout_ms;
+    if (timeout_in == mp_const_none) {
+        timeout_ms = -1;
+    } else {
+        #if MICROPY_PY_BUILTINS_FLOAT
+        timeout_ms = 1000 * mp_obj_get_float(timeout_in);
+        #else
+        timeout_ms = 1000 * mp_obj_get_int(timeout_in);
+        #endif
+    }
+    common_hal_ssl_sslsocket_settimeout(self, timeout_ms);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(ssl_sslsocket_settimeout_obj, ssl_sslsocket_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 ssl_sslsocket_setblocking(mp_obj_t self_in, mp_obj_t blocking) {
+    ssl_sslsocket_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    if (mp_obj_is_true(blocking)) {
+        common_hal_ssl_sslsocket_settimeout(self, -1);
+    } else {
+        common_hal_ssl_sslsocket_settimeout(self, 0);
+    }
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(ssl_sslsocket_setblocking_obj, ssl_sslsocket_setblocking);
+
+STATIC const mp_rom_map_elem_t ssl_sslsocket_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) },
+    { MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&ssl_sslsocket___exit___obj) },
+    { MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&ssl_sslsocket_close_obj) },
+
+    { MP_ROM_QSTR(MP_QSTR_accept), MP_ROM_PTR(&ssl_sslsocket_accept_obj) },
+    { MP_ROM_QSTR(MP_QSTR_bind), MP_ROM_PTR(&ssl_sslsocket_bind_obj) },
+    { MP_ROM_QSTR(MP_QSTR_close), MP_ROM_PTR(&ssl_sslsocket_close_obj) },
+    { MP_ROM_QSTR(MP_QSTR_connect), MP_ROM_PTR(&ssl_sslsocket_connect_obj) },
+    { MP_ROM_QSTR(MP_QSTR_listen), MP_ROM_PTR(&ssl_sslsocket_listen_obj) },
+    { MP_ROM_QSTR(MP_QSTR_recv_into), MP_ROM_PTR(&ssl_sslsocket_recv_into_obj) },
+    { MP_ROM_QSTR(MP_QSTR_send), MP_ROM_PTR(&ssl_sslsocket_send_obj) },
+    { MP_ROM_QSTR(MP_QSTR_setblocking), MP_ROM_PTR(&ssl_sslsocket_setblocking_obj) },
+    // { MP_ROM_QSTR(MP_QSTR_setsockopt), MP_ROM_PTR(&ssl_sslsocket_setsockopt_obj) },
+    { MP_ROM_QSTR(MP_QSTR_settimeout), MP_ROM_PTR(&ssl_sslsocket_settimeout_obj) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(ssl_sslsocket_locals_dict, ssl_sslsocket_locals_dict_table);
+
+const mp_obj_type_t ssl_sslsocket_type = {
+    { &mp_type_type },
+    .flags = MP_TYPE_FLAG_EXTENDED,
+    .name = MP_QSTR_SSLSocket,
+    .locals_dict = (mp_obj_dict_t *)&ssl_sslsocket_locals_dict,
+    MP_TYPE_EXTENDED_FIELDS(
+        .unary_op = mp_generic_unary_op,
+        )
+};
diff --git a/circuitpython/shared-bindings/ssl/SSLSocket.h b/circuitpython/shared-bindings/ssl/SSLSocket.h
new file mode 100644
index 0000000..d651934
--- /dev/null
+++ b/circuitpython/shared-bindings/ssl/SSLSocket.h
@@ -0,0 +1,45 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Lucian Copeland 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.
+ */
+
+#ifndef MICROPY_INCLUDED_SHARED_BINDINGS_SSL_SSLSOCKET_H
+#define MICROPY_INCLUDED_SHARED_BINDINGS_SSL_SSLSOCKET_H
+
+#include "common-hal/ssl/SSLSocket.h"
+
+extern const mp_obj_type_t ssl_sslsocket_type;
+
+ssl_sslsocket_obj_t *common_hal_ssl_sslsocket_accept(ssl_sslsocket_obj_t *self, uint8_t *ip, uint32_t *port);
+bool common_hal_ssl_sslsocket_bind(ssl_sslsocket_obj_t *self, const char *host, size_t hostlen, uint32_t port);
+void common_hal_ssl_sslsocket_close(ssl_sslsocket_obj_t *self);
+void common_hal_ssl_sslsocket_connect(ssl_sslsocket_obj_t *self, const char *host, size_t hostlen, uint32_t port);
+bool common_hal_ssl_sslsocket_get_closed(ssl_sslsocket_obj_t *self);
+bool common_hal_ssl_sslsocket_get_connected(ssl_sslsocket_obj_t *self);
+bool common_hal_ssl_sslsocket_listen(ssl_sslsocket_obj_t *self, int backlog);
+mp_uint_t common_hal_ssl_sslsocket_recv_into(ssl_sslsocket_obj_t *self, const uint8_t *buf, uint32_t len);
+mp_uint_t common_hal_ssl_sslsocket_send(ssl_sslsocket_obj_t *self, const uint8_t *buf, uint32_t len);
+void common_hal_ssl_sslsocket_settimeout(ssl_sslsocket_obj_t *self, uint32_t timeout_ms);
+
+#endif // MICROPY_INCLUDED_SHARED_BINDINGS_SSL_SSLSOCKET_H
diff --git a/circuitpython/shared-bindings/ssl/__init__.c b/circuitpython/shared-bindings/ssl/__init__.c
new file mode 100644
index 0000000..6967860
--- /dev/null
+++ b/circuitpython/shared-bindings/ssl/__init__.c
@@ -0,0 +1,70 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Scott Shawcroft 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 "py/objexcept.h"
+#include "py/objstr.h"
+#include "py/parsenum.h"
+#include "py/runtime.h"
+#include "shared-bindings/ssl/__init__.h"
+#include "shared-bindings/ssl/SSLContext.h"
+
+//| """
+//| The `ssl` module provides SSL contexts to wrap sockets in.
+//|
+//| |see_cpython_module| :mod:`cpython:ssl`.
+//| """
+//|
+
+//| def create_default_context() -> ssl.SSLContext:
+//|     """Return the default SSLContext."""
+//|     ...
+//|
+
+STATIC mp_obj_t ssl_create_default_context(void) {
+    ssl_sslcontext_obj_t *s = m_new_obj(ssl_sslcontext_obj_t);
+    s->base.type = &ssl_sslcontext_type;
+
+    common_hal_ssl_create_default_context(s);
+    return s;
+}
+MP_DEFINE_CONST_FUN_OBJ_0(ssl_create_default_context_obj, ssl_create_default_context);
+
+STATIC const mp_rom_map_elem_t ssl_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_ssl) },
+
+    { MP_ROM_QSTR(MP_QSTR_create_default_context), MP_ROM_PTR(&ssl_create_default_context_obj) },
+
+    { MP_ROM_QSTR(MP_QSTR_SSLContext), MP_ROM_PTR(&ssl_sslcontext_type) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(ssl_globals, ssl_globals_table);
+
+const mp_obj_module_t ssl_module = {
+    .base = { &mp_type_module },
+    .globals = (mp_obj_dict_t *)&ssl_globals,
+};
+
+MP_REGISTER_MODULE(MP_QSTR_ssl, ssl_module, CIRCUITPY_SSL);
diff --git a/circuitpython/shared-bindings/ssl/__init__.h b/circuitpython/shared-bindings/ssl/__init__.h
new file mode 100644
index 0000000..64f69c3
--- /dev/null
+++ b/circuitpython/shared-bindings/ssl/__init__.h
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Scott Shawcroft 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.
+ */
+
+#ifndef MICROPY_INCLUDED_SHARED_BINDINGS_SSL___INIT___H
+#define MICROPY_INCLUDED_SHARED_BINDINGS_SSL___INIT___H
+
+#include "common-hal/ssl/SSLContext.h"
+
+void common_hal_ssl_create_default_context(ssl_sslcontext_obj_t *self);
+
+#endif // MICROPY_INCLUDED_SHARED_BINDINGS_SSL___INIT___H