modusocket.c 16.5 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
/*
 * This file is part of the Micro Python project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 Damien P. George
 *
 * 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 <errno.h>

31
32
33
34
#include "py/nlr.h"
#include "py/objtuple.h"
#include "py/objlist.h"
#include "py/runtime.h"
35
36
#include "modnetwork.h"

37
38
/******************************************************************************/
// socket class
39

40
STATIC const mp_obj_type_t socket_type;
41

42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
// constructor socket(family=AF_INET, type=SOCK_STREAM, proto=0, fileno=None)
STATIC mp_obj_t socket_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
    mp_arg_check_num(n_args, n_kw, 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 = (mp_obj_t)&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]);
60
61
62
63
            }
        }
    }

64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
    return 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 = mod_network_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) {
            nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
        }
    }
}
// method socket.close()
STATIC mp_obj_t socket_close(mp_obj_t self_in) {
    mod_network_socket_obj_t *self = self_in;
    if (self->nic != MP_OBJ_NULL) {
        self->nic_type->close(self);
    }
    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(socket_close_obj, socket_close);

// method socket.bind(address)
STATIC mp_obj_t socket_bind(mp_obj_t self_in, mp_obj_t addr_in) {
    mod_network_socket_obj_t *self = self_in;

    // get address
    uint8_t ip[MOD_NETWORK_IPADDR_BUF_SIZE];
    mp_uint_t port = mod_network_parse_inet_addr(addr_in, ip);

    // 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) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }

    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_bind_obj, socket_bind);

// method socket.listen(backlog)
STATIC mp_obj_t socket_listen(mp_obj_t self_in, mp_obj_t backlog) {
    mod_network_socket_obj_t *self = self_in;

    if (self->nic == MP_OBJ_NULL) {
        // not connected
        // TODO I think we can listen even if not bound...
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ENOTCONN)));
    }

    int _errno;
    if (self->nic_type->listen(self, mp_obj_get_int(backlog), &_errno) != 0) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }

    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_listen_obj, socket_listen);

// method socket.accept()
STATIC mp_obj_t socket_accept(mp_obj_t self_in) {
    mod_network_socket_obj_t *self = self_in;

    // create new socket object
    mod_network_socket_obj_t *socket2 = m_new_obj_with_finaliser(mod_network_socket_obj_t);
    socket2->base.type = (mp_obj_t)&socket_type;
    socket2->nic = self->nic;
    socket2->nic_type = self->nic_type;

    // 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) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }

    // make the return value
    mp_obj_tuple_t *client = mp_obj_new_tuple(2, NULL);
    client->items[0] = socket2;
    client->items[1] = mod_network_format_inet_addr(ip, port);

    return client;
154
}
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
STATIC MP_DEFINE_CONST_FUN_OBJ_1(socket_accept_obj, socket_accept);

// method socket.connect(address)
STATIC mp_obj_t socket_connect(mp_obj_t self_in, mp_obj_t addr_in) {
    mod_network_socket_obj_t *self = self_in;

    // get address
    uint8_t ip[MOD_NETWORK_IPADDR_BUF_SIZE];
    mp_uint_t port = mod_network_parse_inet_addr(addr_in, ip);

    // 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) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }

    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_connect_obj, socket_connect);

// method socket.send(bytes)
STATIC mp_obj_t socket_send(mp_obj_t self_in, mp_obj_t buf_in) {
    mod_network_socket_obj_t *self = self_in;
    if (self->nic == MP_OBJ_NULL) {
        // not connected
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(EPIPE)));
    }
    mp_buffer_info_t bufinfo;
    mp_get_buffer_raise(buf_in, &bufinfo, MP_BUFFER_READ);
    int _errno;
    mp_uint_t ret = self->nic_type->send(self, bufinfo.buf, bufinfo.len, &_errno);
    if (ret == -1) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }
    return mp_obj_new_int_from_uint(ret);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_send_obj, socket_send);

// method socket.recv(bufsize)
STATIC mp_obj_t socket_recv(mp_obj_t self_in, mp_obj_t len_in) {
    mod_network_socket_obj_t *self = self_in;
    if (self->nic == MP_OBJ_NULL) {
        // not connected
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ENOTCONN)));
    }
    mp_int_t len = mp_obj_get_int(len_in);
    byte *buf;
    mp_obj_t ret_obj = mp_obj_str_builder_start(&mp_type_bytes, len, &buf);
    int _errno;
    mp_uint_t ret = self->nic_type->recv(self, buf, len, &_errno);
    if (ret == -1) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }
    if (ret == 0) {
        return mp_const_empty_bytes;
    }
    return mp_obj_str_builder_end_with_len(ret_obj, ret);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_recv_obj, socket_recv);

// method socket.sendto(bytes, address)
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 = 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 = mod_network_parse_inet_addr(addr_in, ip);

    // 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) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }

    return mp_obj_new_int(ret);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(socket_sendto_obj, socket_sendto);

// method socket.recvfrom(bufsize)
STATIC mp_obj_t socket_recvfrom(mp_obj_t self_in, mp_obj_t len_in) {
    mod_network_socket_obj_t *self = self_in;
    if (self->nic == MP_OBJ_NULL) {
        // not connected
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ENOTCONN)));
    }
    mp_int_t len = mp_obj_get_int(len_in);
    byte *buf;
    mp_obj_t ret_obj = mp_obj_str_builder_start(&mp_type_bytes, len, &buf);
    byte ip[4];
    mp_uint_t port;
    int _errno;
    mp_int_t ret = self->nic_type->recvfrom(self, buf, len, ip, &port, &_errno);
    if (ret == -1) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }
    if (ret == 0) {
        ret_obj = mp_const_empty_bytes;
    } else {
        ret_obj = mp_obj_str_builder_end_with_len(ret_obj, ret);
    }
    mp_obj_t tuple[2] = {
        ret_obj,
        mod_network_format_inet_addr(ip, port),
    };
    return mp_obj_new_tuple(2, tuple);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_recvfrom_obj, socket_recvfrom);

// method socket.setsockopt(level, optname, value)
STATIC mp_obj_t socket_setsockopt(mp_uint_t n_args, const mp_obj_t *args) {
    mod_network_socket_obj_t *self = 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;
    if (mp_obj_is_integer(args[3])) {
284
        mp_int_t val = mp_obj_int_get_truncated(args[3]);
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
        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) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }

    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_setsockopt_obj, 4, 4, socket_setsockopt);

// method socket.settimeout(value)
// timeout=0 means non-blocking
// timeout=None means blocking
// otherwise, timeout is in seconds
STATIC mp_obj_t socket_settimeout(mp_obj_t self_in, mp_obj_t timeout_in) {
    mod_network_socket_obj_t *self = self_in;
    if (self->nic == MP_OBJ_NULL) {
        // not connected
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ENOTCONN)));
    }
    mp_uint_t timeout;
    if (timeout_in == mp_const_none) {
        timeout = -1;
    } else {
317
        #if MICROPY_PY_BUILTIN_FLOAT
318
        timeout = 1000 * mp_obj_get_float(timeout_in);
319
320
321
        #else
        timeout = 1000 * mp_obj_get_int(timeout_in);
        #endif
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
    }
    int _errno;
    if (self->nic_type->settimeout(self, timeout, &_errno) != 0) {
        nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(_errno)));
    }
    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(socket_settimeout_obj, socket_settimeout);

// 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_map_elem_t socket_locals_dict_table[] = {
    { MP_OBJ_NEW_QSTR(MP_QSTR___del__), (mp_obj_t)&socket_close_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_close), (mp_obj_t)&socket_close_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_bind), (mp_obj_t)&socket_bind_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_listen), (mp_obj_t)&socket_listen_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_accept), (mp_obj_t)&socket_accept_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_connect), (mp_obj_t)&socket_connect_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_send), (mp_obj_t)&socket_send_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_recv), (mp_obj_t)&socket_recv_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_sendto), (mp_obj_t)&socket_sendto_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_recvfrom), (mp_obj_t)&socket_recvfrom_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_setsockopt), (mp_obj_t)&socket_setsockopt_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_settimeout), (mp_obj_t)&socket_settimeout_obj },
    { MP_OBJ_NEW_QSTR(MP_QSTR_setblocking), (mp_obj_t)&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, mp_uint_t arg, int *errcode) {
    mod_network_socket_obj_t *self = self_in;
    return self->nic_type->ioctl(self, request, arg, errcode);
}

STATIC const mp_stream_p_t socket_stream_p = {
    .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,
    .stream_p = &socket_stream_p,
    .locals_dict = (mp_obj_t)&socket_locals_dict,
};

/******************************************************************************/
// usocket module
379

380
// function usocket.getaddrinfo(host, port)
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
STATIC mp_obj_t mod_usocket_getaddrinfo(mp_obj_t host_in, mp_obj_t port_in) {
    mp_uint_t hlen;
    const char *host = mp_obj_str_get_data(host_in, &hlen);
    mp_int_t port = mp_obj_get_int(port_in);

    // find a NIC that can do a name lookup
    for (mp_uint_t i = 0; i < mod_network_nic_list.len; i++) {
        mp_obj_t nic = 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) {
            uint8_t out_ip[MOD_NETWORK_IPADDR_BUF_SIZE];
            int ret = nic_type->gethostbyname(nic, host, hlen, out_ip);
            if (ret != 0) {
                // TODO CPython raises: socket.gaierror: [Errno -2] Name or service not known
                nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(ret)));
            }
            mp_obj_tuple_t *tuple = 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] = mod_network_format_inet_addr(out_ip, port);
            return mp_obj_new_list(1, (mp_obj_t*)&tuple);
        }
    }

    nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "no available NIC"));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_usocket_getaddrinfo_obj, mod_usocket_getaddrinfo);

STATIC const mp_map_elem_t mp_module_usocket_globals_table[] = {
    { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_usocket) },

414
    { MP_OBJ_NEW_QSTR(MP_QSTR_socket), (mp_obj_t)&socket_type },
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
    { MP_OBJ_NEW_QSTR(MP_QSTR_getaddrinfo), (mp_obj_t)&mod_usocket_getaddrinfo_obj },

    // class constants
    { MP_OBJ_NEW_QSTR(MP_QSTR_AF_INET), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_AF_INET) },
    { MP_OBJ_NEW_QSTR(MP_QSTR_AF_INET6), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_AF_INET6) },

    { MP_OBJ_NEW_QSTR(MP_QSTR_SOCK_STREAM), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_SOCK_STREAM) },
    { MP_OBJ_NEW_QSTR(MP_QSTR_SOCK_DGRAM), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_SOCK_DGRAM) },
    { MP_OBJ_NEW_QSTR(MP_QSTR_SOCK_RAW), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_SOCK_RAW) },

    /*
    { MP_OBJ_NEW_QSTR(MP_QSTR_IPPROTO_IP), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_IPPROTO_IP) },
    { MP_OBJ_NEW_QSTR(MP_QSTR_IPPROTO_ICMP), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_IPPROTO_ICMP) },
    { MP_OBJ_NEW_QSTR(MP_QSTR_IPPROTO_IPV4), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_IPPROTO_IPV4) },
    { MP_OBJ_NEW_QSTR(MP_QSTR_IPPROTO_TCP), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_IPPROTO_TCP) },
    { MP_OBJ_NEW_QSTR(MP_QSTR_IPPROTO_UDP), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_IPPROTO_UDP) },
    { MP_OBJ_NEW_QSTR(MP_QSTR_IPPROTO_IPV6), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_IPPROTO_IPV6) },
    { MP_OBJ_NEW_QSTR(MP_QSTR_IPPROTO_RAW), MP_OBJ_NEW_SMALL_INT(MOD_NETWORK_IPPROTO_RAW) },
    */
};

436
STATIC MP_DEFINE_CONST_DICT(mp_module_usocket_globals, mp_module_usocket_globals_table);
437
438
439
440
441
442

const mp_obj_module_t mp_module_usocket = {
    .base = { &mp_type_module },
    .name = MP_QSTR_usocket,
    .globals = (mp_obj_dict_t*)&mp_module_usocket_globals,
};