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Commit | Line | Data |
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d24ca4b8 MAL |
1 | /* |
2 | * QEMU System Emulator | |
3 | * | |
4 | * Copyright (c) 2003-2008 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
922a01a0 | 24 | |
d24ca4b8 | 25 | #include "qemu/osdep.h" |
8228e353 | 26 | #include "chardev/char.h" |
d24ca4b8 MAL |
27 | #include "io/channel-socket.h" |
28 | #include "io/channel-tls.h" | |
981b06e7 | 29 | #include "io/channel-websock.h" |
194b7f0d | 30 | #include "io/net-listener.h" |
d24ca4b8 | 31 | #include "qemu/error-report.h" |
0b8fa32f | 32 | #include "qemu/module.h" |
922a01a0 | 33 | #include "qemu/option.h" |
d24ca4b8 MAL |
34 | #include "qapi/error.h" |
35 | #include "qapi/clone-visitor.h" | |
9af23989 | 36 | #include "qapi/qapi-visit-sockets.h" |
d24ca4b8 | 37 | |
8228e353 | 38 | #include "chardev/char-io.h" |
d24ca4b8 MAL |
39 | |
40 | /***********************************************************/ | |
41 | /* TCP Net console */ | |
42 | ||
43 | #define TCP_MAX_FDS 16 | |
44 | ||
ce1230c0 PX |
45 | typedef struct { |
46 | char buf[21]; | |
47 | size_t buflen; | |
48 | } TCPChardevTelnetInit; | |
49 | ||
32423cca DB |
50 | typedef enum { |
51 | TCP_CHARDEV_STATE_DISCONNECTED, | |
52 | TCP_CHARDEV_STATE_CONNECTING, | |
53 | TCP_CHARDEV_STATE_CONNECTED, | |
54 | } TCPChardevState; | |
55 | ||
d24ca4b8 MAL |
56 | typedef struct { |
57 | Chardev parent; | |
58 | QIOChannel *ioc; /* Client I/O channel */ | |
59 | QIOChannelSocket *sioc; /* Client master channel */ | |
194b7f0d | 60 | QIONetListener *listener; |
a8aa6197 | 61 | GSource *hup_source; |
d24ca4b8 | 62 | QCryptoTLSCreds *tls_creds; |
fd4a5fd4 | 63 | char *tls_authz; |
32423cca | 64 | TCPChardevState state; |
d24ca4b8 MAL |
65 | int max_size; |
66 | int do_telnetopt; | |
67 | int do_nodelay; | |
d24ca4b8 MAL |
68 | int *read_msgfds; |
69 | size_t read_msgfds_num; | |
70 | int *write_msgfds; | |
71 | size_t write_msgfds_num; | |
72 | ||
73 | SocketAddress *addr; | |
74 | bool is_listen; | |
75 | bool is_telnet; | |
ae92cbd5 | 76 | bool is_tn3270; |
ce1230c0 PX |
77 | GSource *telnet_source; |
78 | TCPChardevTelnetInit *telnet_init; | |
d24ca4b8 | 79 | |
981b06e7 JS |
80 | bool is_websock; |
81 | ||
2c716ba1 | 82 | GSource *reconnect_timer; |
d24ca4b8 MAL |
83 | int64_t reconnect_time; |
84 | bool connect_err_reported; | |
4b47373a DB |
85 | |
86 | QIOTask *connect_task; | |
d24ca4b8 MAL |
87 | } SocketChardev; |
88 | ||
89 | #define SOCKET_CHARDEV(obj) \ | |
90 | OBJECT_CHECK(SocketChardev, (obj), TYPE_CHARDEV_SOCKET) | |
91 | ||
92 | static gboolean socket_reconnect_timeout(gpointer opaque); | |
ce1230c0 | 93 | static void tcp_chr_telnet_init(Chardev *chr); |
d24ca4b8 | 94 | |
32423cca DB |
95 | static void tcp_chr_change_state(SocketChardev *s, TCPChardevState state) |
96 | { | |
97 | switch (state) { | |
98 | case TCP_CHARDEV_STATE_DISCONNECTED: | |
99 | break; | |
100 | case TCP_CHARDEV_STATE_CONNECTING: | |
101 | assert(s->state == TCP_CHARDEV_STATE_DISCONNECTED); | |
102 | break; | |
103 | case TCP_CHARDEV_STATE_CONNECTED: | |
104 | assert(s->state == TCP_CHARDEV_STATE_CONNECTING); | |
105 | break; | |
106 | } | |
107 | s->state = state; | |
108 | } | |
109 | ||
2c716ba1 PX |
110 | static void tcp_chr_reconn_timer_cancel(SocketChardev *s) |
111 | { | |
112 | if (s->reconnect_timer) { | |
113 | g_source_destroy(s->reconnect_timer); | |
114 | g_source_unref(s->reconnect_timer); | |
115 | s->reconnect_timer = NULL; | |
116 | } | |
117 | } | |
118 | ||
d24ca4b8 MAL |
119 | static void qemu_chr_socket_restart_timer(Chardev *chr) |
120 | { | |
121 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
122 | char *name; | |
123 | ||
32423cca | 124 | assert(s->state == TCP_CHARDEV_STATE_DISCONNECTED); |
4b47373a | 125 | assert(!s->reconnect_timer); |
d24ca4b8 | 126 | name = g_strdup_printf("chardev-socket-reconnect-%s", chr->label); |
2c716ba1 PX |
127 | s->reconnect_timer = qemu_chr_timeout_add_ms(chr, |
128 | s->reconnect_time * 1000, | |
129 | socket_reconnect_timeout, | |
130 | chr); | |
131 | g_source_set_name(s->reconnect_timer, name); | |
d24ca4b8 MAL |
132 | g_free(name); |
133 | } | |
134 | ||
135 | static void check_report_connect_error(Chardev *chr, | |
136 | Error *err) | |
137 | { | |
138 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
139 | ||
140 | if (!s->connect_err_reported) { | |
141 | error_report("Unable to connect character device %s: %s", | |
142 | chr->label, error_get_pretty(err)); | |
143 | s->connect_err_reported = true; | |
144 | } | |
145 | qemu_chr_socket_restart_timer(chr); | |
146 | } | |
147 | ||
194b7f0d DB |
148 | static void tcp_chr_accept(QIONetListener *listener, |
149 | QIOChannelSocket *cioc, | |
150 | void *opaque); | |
d24ca4b8 | 151 | |
b0a335e3 | 152 | static int tcp_chr_read_poll(void *opaque); |
78d01598 | 153 | static void tcp_chr_disconnect_locked(Chardev *chr); |
b0a335e3 | 154 | |
d24ca4b8 MAL |
155 | /* Called with chr_write_lock held. */ |
156 | static int tcp_chr_write(Chardev *chr, const uint8_t *buf, int len) | |
157 | { | |
158 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
159 | ||
32423cca | 160 | if (s->state == TCP_CHARDEV_STATE_CONNECTED) { |
d24ca4b8 MAL |
161 | int ret = io_channel_send_full(s->ioc, buf, len, |
162 | s->write_msgfds, | |
163 | s->write_msgfds_num); | |
164 | ||
81e34930 XC |
165 | /* free the written msgfds in any cases |
166 | * other than ret < 0 && errno == EAGAIN | |
167 | */ | |
168 | if (!(ret < 0 && EAGAIN == errno) | |
169 | && s->write_msgfds_num) { | |
d24ca4b8 MAL |
170 | g_free(s->write_msgfds); |
171 | s->write_msgfds = 0; | |
172 | s->write_msgfds_num = 0; | |
173 | } | |
174 | ||
b0a335e3 AN |
175 | if (ret < 0 && errno != EAGAIN) { |
176 | if (tcp_chr_read_poll(chr) <= 0) { | |
78d01598 | 177 | tcp_chr_disconnect_locked(chr); |
b0a335e3 AN |
178 | return len; |
179 | } /* else let the read handler finish it properly */ | |
180 | } | |
181 | ||
d24ca4b8 MAL |
182 | return ret; |
183 | } else { | |
184 | /* XXX: indicate an error ? */ | |
185 | return len; | |
186 | } | |
187 | } | |
188 | ||
189 | static int tcp_chr_read_poll(void *opaque) | |
190 | { | |
191 | Chardev *chr = CHARDEV(opaque); | |
192 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
32423cca | 193 | if (s->state != TCP_CHARDEV_STATE_CONNECTED) { |
d24ca4b8 MAL |
194 | return 0; |
195 | } | |
196 | s->max_size = qemu_chr_be_can_write(chr); | |
197 | return s->max_size; | |
198 | } | |
199 | ||
d24ca4b8 MAL |
200 | static void tcp_chr_process_IAC_bytes(Chardev *chr, |
201 | SocketChardev *s, | |
202 | uint8_t *buf, int *size) | |
203 | { | |
ae92cbd5 JL |
204 | /* Handle any telnet or tn3270 client's basic IAC options. |
205 | * For telnet options, it satisfies char by char mode with no echo. | |
206 | * For tn3270 options, it satisfies binary mode with EOR. | |
207 | * All IAC options will be removed from the buf and the do_opt | |
208 | * pointer will be used to track the state of the width of the | |
209 | * IAC information. | |
d24ca4b8 | 210 | * |
ae92cbd5 JL |
211 | * RFC854: "All TELNET commands consist of at least a two byte sequence. |
212 | * The commands dealing with option negotiation are three byte sequences, | |
213 | * the third byte being the code for the option referenced." | |
214 | * "IAC BREAK", "IAC IP", "IAC NOP" and the double IAC are two bytes. | |
215 | * "IAC SB", "IAC SE" and "IAC EOR" are saved to split up data boundary | |
216 | * for tn3270. | |
217 | * NOP, Break and Interrupt Process(IP) might be encountered during a TN3270 | |
218 | * session, and NOP and IP need to be done later. | |
d24ca4b8 MAL |
219 | */ |
220 | ||
221 | int i; | |
222 | int j = 0; | |
223 | ||
224 | for (i = 0; i < *size; i++) { | |
225 | if (s->do_telnetopt > 1) { | |
226 | if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { | |
227 | /* Double IAC means send an IAC */ | |
228 | if (j != i) { | |
229 | buf[j] = buf[i]; | |
230 | } | |
231 | j++; | |
232 | s->do_telnetopt = 1; | |
233 | } else { | |
234 | if ((unsigned char)buf[i] == IAC_BREAK | |
235 | && s->do_telnetopt == 2) { | |
236 | /* Handle IAC break commands by sending a serial break */ | |
237 | qemu_chr_be_event(chr, CHR_EVENT_BREAK); | |
238 | s->do_telnetopt++; | |
ae92cbd5 JL |
239 | } else if (s->is_tn3270 && ((unsigned char)buf[i] == IAC_EOR |
240 | || (unsigned char)buf[i] == IAC_SB | |
241 | || (unsigned char)buf[i] == IAC_SE) | |
242 | && s->do_telnetopt == 2) { | |
243 | buf[j++] = IAC; | |
244 | buf[j++] = buf[i]; | |
245 | s->do_telnetopt++; | |
246 | } else if (s->is_tn3270 && ((unsigned char)buf[i] == IAC_IP | |
247 | || (unsigned char)buf[i] == IAC_NOP) | |
248 | && s->do_telnetopt == 2) { | |
249 | /* TODO: IP and NOP need to be implemented later. */ | |
250 | s->do_telnetopt++; | |
d24ca4b8 MAL |
251 | } |
252 | s->do_telnetopt++; | |
253 | } | |
254 | if (s->do_telnetopt >= 4) { | |
255 | s->do_telnetopt = 1; | |
256 | } | |
257 | } else { | |
258 | if ((unsigned char)buf[i] == IAC) { | |
259 | s->do_telnetopt = 2; | |
260 | } else { | |
261 | if (j != i) { | |
262 | buf[j] = buf[i]; | |
263 | } | |
264 | j++; | |
265 | } | |
266 | } | |
267 | } | |
268 | *size = j; | |
269 | } | |
270 | ||
271 | static int tcp_get_msgfds(Chardev *chr, int *fds, int num) | |
272 | { | |
273 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
274 | ||
275 | int to_copy = (s->read_msgfds_num < num) ? s->read_msgfds_num : num; | |
276 | ||
277 | assert(num <= TCP_MAX_FDS); | |
278 | ||
279 | if (to_copy) { | |
280 | int i; | |
281 | ||
282 | memcpy(fds, s->read_msgfds, to_copy * sizeof(int)); | |
283 | ||
284 | /* Close unused fds */ | |
285 | for (i = to_copy; i < s->read_msgfds_num; i++) { | |
286 | close(s->read_msgfds[i]); | |
287 | } | |
288 | ||
289 | g_free(s->read_msgfds); | |
290 | s->read_msgfds = 0; | |
291 | s->read_msgfds_num = 0; | |
292 | } | |
293 | ||
294 | return to_copy; | |
295 | } | |
296 | ||
297 | static int tcp_set_msgfds(Chardev *chr, int *fds, int num) | |
298 | { | |
299 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
300 | ||
301 | /* clear old pending fd array */ | |
302 | g_free(s->write_msgfds); | |
303 | s->write_msgfds = NULL; | |
304 | s->write_msgfds_num = 0; | |
305 | ||
32423cca | 306 | if ((s->state != TCP_CHARDEV_STATE_CONNECTED) || |
d24ca4b8 MAL |
307 | !qio_channel_has_feature(s->ioc, |
308 | QIO_CHANNEL_FEATURE_FD_PASS)) { | |
309 | return -1; | |
310 | } | |
311 | ||
312 | if (num) { | |
313 | s->write_msgfds = g_new(int, num); | |
314 | memcpy(s->write_msgfds, fds, num * sizeof(int)); | |
315 | } | |
316 | ||
317 | s->write_msgfds_num = num; | |
318 | ||
319 | return 0; | |
320 | } | |
321 | ||
322 | static ssize_t tcp_chr_recv(Chardev *chr, char *buf, size_t len) | |
323 | { | |
324 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
325 | struct iovec iov = { .iov_base = buf, .iov_len = len }; | |
326 | int ret; | |
327 | size_t i; | |
328 | int *msgfds = NULL; | |
329 | size_t msgfds_num = 0; | |
330 | ||
331 | if (qio_channel_has_feature(s->ioc, QIO_CHANNEL_FEATURE_FD_PASS)) { | |
332 | ret = qio_channel_readv_full(s->ioc, &iov, 1, | |
333 | &msgfds, &msgfds_num, | |
334 | NULL); | |
335 | } else { | |
336 | ret = qio_channel_readv_full(s->ioc, &iov, 1, | |
337 | NULL, NULL, | |
338 | NULL); | |
339 | } | |
340 | ||
341 | if (ret == QIO_CHANNEL_ERR_BLOCK) { | |
342 | errno = EAGAIN; | |
343 | ret = -1; | |
344 | } else if (ret == -1) { | |
345 | errno = EIO; | |
346 | } | |
347 | ||
348 | if (msgfds_num) { | |
349 | /* close and clean read_msgfds */ | |
350 | for (i = 0; i < s->read_msgfds_num; i++) { | |
351 | close(s->read_msgfds[i]); | |
352 | } | |
353 | ||
354 | if (s->read_msgfds_num) { | |
355 | g_free(s->read_msgfds); | |
356 | } | |
357 | ||
358 | s->read_msgfds = msgfds; | |
359 | s->read_msgfds_num = msgfds_num; | |
360 | } | |
361 | ||
362 | for (i = 0; i < s->read_msgfds_num; i++) { | |
363 | int fd = s->read_msgfds[i]; | |
364 | if (fd < 0) { | |
365 | continue; | |
366 | } | |
367 | ||
368 | /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */ | |
369 | qemu_set_block(fd); | |
370 | ||
371 | #ifndef MSG_CMSG_CLOEXEC | |
372 | qemu_set_cloexec(fd); | |
373 | #endif | |
374 | } | |
375 | ||
376 | return ret; | |
377 | } | |
378 | ||
379 | static GSource *tcp_chr_add_watch(Chardev *chr, GIOCondition cond) | |
380 | { | |
381 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
382 | return qio_channel_create_watch(s->ioc, cond); | |
383 | } | |
384 | ||
dfe9ea20 MAL |
385 | static void remove_hup_source(SocketChardev *s) |
386 | { | |
387 | if (s->hup_source != NULL) { | |
388 | g_source_destroy(s->hup_source); | |
389 | g_source_unref(s->hup_source); | |
390 | s->hup_source = NULL; | |
391 | } | |
392 | } | |
393 | ||
d24ca4b8 MAL |
394 | static void tcp_chr_free_connection(Chardev *chr) |
395 | { | |
396 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
397 | int i; | |
398 | ||
d24ca4b8 MAL |
399 | if (s->read_msgfds_num) { |
400 | for (i = 0; i < s->read_msgfds_num; i++) { | |
401 | close(s->read_msgfds[i]); | |
402 | } | |
403 | g_free(s->read_msgfds); | |
404 | s->read_msgfds = NULL; | |
405 | s->read_msgfds_num = 0; | |
406 | } | |
407 | ||
dfe9ea20 | 408 | remove_hup_source(s); |
a8aa6197 | 409 | |
d24ca4b8 | 410 | tcp_set_msgfds(chr, NULL, 0); |
b19456dd | 411 | remove_fd_in_watch(chr); |
d24ca4b8 MAL |
412 | object_unref(OBJECT(s->sioc)); |
413 | s->sioc = NULL; | |
414 | object_unref(OBJECT(s->ioc)); | |
415 | s->ioc = NULL; | |
416 | g_free(chr->filename); | |
417 | chr->filename = NULL; | |
32423cca | 418 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); |
d24ca4b8 MAL |
419 | } |
420 | ||
4493b6a5 | 421 | static const char *qemu_chr_socket_protocol(SocketChardev *s) |
d24ca4b8 | 422 | { |
4493b6a5 JS |
423 | if (s->is_telnet) { |
424 | return "telnet"; | |
425 | } | |
981b06e7 | 426 | return s->is_websock ? "websocket" : "tcp"; |
4493b6a5 JS |
427 | } |
428 | ||
429 | static char *qemu_chr_socket_address(SocketChardev *s, const char *prefix) | |
430 | { | |
431 | switch (s->addr->type) { | |
bd269ebc | 432 | case SOCKET_ADDRESS_TYPE_INET: |
d24ca4b8 | 433 | return g_strdup_printf("%s%s:%s:%s%s", prefix, |
4493b6a5 JS |
434 | qemu_chr_socket_protocol(s), |
435 | s->addr->u.inet.host, | |
436 | s->addr->u.inet.port, | |
437 | s->is_listen ? ",server" : ""); | |
d24ca4b8 | 438 | break; |
bd269ebc | 439 | case SOCKET_ADDRESS_TYPE_UNIX: |
d24ca4b8 | 440 | return g_strdup_printf("%sunix:%s%s", prefix, |
4493b6a5 JS |
441 | s->addr->u.q_unix.path, |
442 | s->is_listen ? ",server" : ""); | |
d24ca4b8 | 443 | break; |
bd269ebc | 444 | case SOCKET_ADDRESS_TYPE_FD: |
4493b6a5 JS |
445 | return g_strdup_printf("%sfd:%s%s", prefix, s->addr->u.fd.str, |
446 | s->is_listen ? ",server" : ""); | |
d24ca4b8 | 447 | break; |
bd269ebc | 448 | case SOCKET_ADDRESS_TYPE_VSOCK: |
d2e49aad | 449 | return g_strdup_printf("%svsock:%s:%s", prefix, |
4493b6a5 JS |
450 | s->addr->u.vsock.cid, |
451 | s->addr->u.vsock.port); | |
d24ca4b8 MAL |
452 | default: |
453 | abort(); | |
454 | } | |
455 | } | |
456 | ||
bbcde969 MAL |
457 | static void update_disconnected_filename(SocketChardev *s) |
458 | { | |
459 | Chardev *chr = CHARDEV(s); | |
460 | ||
461 | g_free(chr->filename); | |
90a6d17b | 462 | if (s->addr) { |
4493b6a5 | 463 | chr->filename = qemu_chr_socket_address(s, "disconnected:"); |
90a6d17b MAL |
464 | } else { |
465 | chr->filename = g_strdup("disconnected:socket"); | |
466 | } | |
bbcde969 MAL |
467 | } |
468 | ||
9cca7578 DB |
469 | /* NB may be called even if tcp_chr_connect has not been |
470 | * reached, due to TLS or telnet initialization failure, | |
32423cca | 471 | * so can *not* assume s->state == TCP_CHARDEV_STATE_CONNECTED |
78d01598 | 472 | * This must be called with chr->chr_write_lock held. |
9cca7578 | 473 | */ |
78d01598 | 474 | static void tcp_chr_disconnect_locked(Chardev *chr) |
d24ca4b8 MAL |
475 | { |
476 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
32423cca | 477 | bool emit_close = s->state == TCP_CHARDEV_STATE_CONNECTED; |
d24ca4b8 MAL |
478 | |
479 | tcp_chr_free_connection(chr); | |
480 | ||
194b7f0d | 481 | if (s->listener) { |
3da9de5c PX |
482 | qio_net_listener_set_client_func_full(s->listener, tcp_chr_accept, |
483 | chr, NULL, chr->gcontext); | |
d24ca4b8 | 484 | } |
bbcde969 | 485 | update_disconnected_filename(s); |
9cca7578 DB |
486 | if (emit_close) { |
487 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); | |
488 | } | |
d24ca4b8 MAL |
489 | if (s->reconnect_time) { |
490 | qemu_chr_socket_restart_timer(chr); | |
491 | } | |
492 | } | |
493 | ||
78d01598 AG |
494 | static void tcp_chr_disconnect(Chardev *chr) |
495 | { | |
496 | qemu_mutex_lock(&chr->chr_write_lock); | |
497 | tcp_chr_disconnect_locked(chr); | |
498 | qemu_mutex_unlock(&chr->chr_write_lock); | |
499 | } | |
500 | ||
d24ca4b8 MAL |
501 | static gboolean tcp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque) |
502 | { | |
503 | Chardev *chr = CHARDEV(opaque); | |
504 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
505 | uint8_t buf[CHR_READ_BUF_LEN]; | |
506 | int len, size; | |
507 | ||
32423cca DB |
508 | if ((s->state != TCP_CHARDEV_STATE_CONNECTED) || |
509 | s->max_size <= 0) { | |
d24ca4b8 MAL |
510 | return TRUE; |
511 | } | |
512 | len = sizeof(buf); | |
513 | if (len > s->max_size) { | |
514 | len = s->max_size; | |
515 | } | |
516 | size = tcp_chr_recv(chr, (void *)buf, len); | |
c863fdec | 517 | if (size == 0 || (size == -1 && errno != EAGAIN)) { |
d24ca4b8 MAL |
518 | /* connection closed */ |
519 | tcp_chr_disconnect(chr); | |
520 | } else if (size > 0) { | |
521 | if (s->do_telnetopt) { | |
522 | tcp_chr_process_IAC_bytes(chr, s, buf, &size); | |
523 | } | |
524 | if (size > 0) { | |
525 | qemu_chr_be_write(chr, buf, size); | |
526 | } | |
527 | } | |
528 | ||
529 | return TRUE; | |
530 | } | |
531 | ||
a8aa6197 KK |
532 | static gboolean tcp_chr_hup(QIOChannel *channel, |
533 | GIOCondition cond, | |
534 | void *opaque) | |
535 | { | |
536 | Chardev *chr = CHARDEV(opaque); | |
537 | tcp_chr_disconnect(chr); | |
538 | return G_SOURCE_REMOVE; | |
539 | } | |
540 | ||
d24ca4b8 MAL |
541 | static int tcp_chr_sync_read(Chardev *chr, const uint8_t *buf, int len) |
542 | { | |
543 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
544 | int size; | |
545 | ||
32423cca | 546 | if (s->state != TCP_CHARDEV_STATE_CONNECTED) { |
d24ca4b8 MAL |
547 | return 0; |
548 | } | |
549 | ||
bcdeb9be | 550 | qio_channel_set_blocking(s->ioc, true, NULL); |
d24ca4b8 | 551 | size = tcp_chr_recv(chr, (void *) buf, len); |
bcdeb9be | 552 | qio_channel_set_blocking(s->ioc, false, NULL); |
d24ca4b8 MAL |
553 | if (size == 0) { |
554 | /* connection closed */ | |
555 | tcp_chr_disconnect(chr); | |
556 | } | |
557 | ||
558 | return size; | |
559 | } | |
560 | ||
4493b6a5 | 561 | static char *qemu_chr_compute_filename(SocketChardev *s) |
d24ca4b8 | 562 | { |
4493b6a5 JS |
563 | struct sockaddr_storage *ss = &s->sioc->localAddr; |
564 | struct sockaddr_storage *ps = &s->sioc->remoteAddr; | |
565 | socklen_t ss_len = s->sioc->localAddrLen; | |
566 | socklen_t ps_len = s->sioc->remoteAddrLen; | |
d24ca4b8 MAL |
567 | char shost[NI_MAXHOST], sserv[NI_MAXSERV]; |
568 | char phost[NI_MAXHOST], pserv[NI_MAXSERV]; | |
569 | const char *left = "", *right = ""; | |
570 | ||
571 | switch (ss->ss_family) { | |
572 | #ifndef _WIN32 | |
573 | case AF_UNIX: | |
574 | return g_strdup_printf("unix:%s%s", | |
575 | ((struct sockaddr_un *)(ss))->sun_path, | |
4493b6a5 | 576 | s->is_listen ? ",server" : ""); |
d24ca4b8 MAL |
577 | #endif |
578 | case AF_INET6: | |
579 | left = "["; | |
580 | right = "]"; | |
581 | /* fall through */ | |
582 | case AF_INET: | |
583 | getnameinfo((struct sockaddr *) ss, ss_len, shost, sizeof(shost), | |
584 | sserv, sizeof(sserv), NI_NUMERICHOST | NI_NUMERICSERV); | |
585 | getnameinfo((struct sockaddr *) ps, ps_len, phost, sizeof(phost), | |
586 | pserv, sizeof(pserv), NI_NUMERICHOST | NI_NUMERICSERV); | |
587 | return g_strdup_printf("%s:%s%s%s:%s%s <-> %s%s%s:%s", | |
4493b6a5 | 588 | qemu_chr_socket_protocol(s), |
d24ca4b8 | 589 | left, shost, right, sserv, |
4493b6a5 | 590 | s->is_listen ? ",server" : "", |
d24ca4b8 MAL |
591 | left, phost, right, pserv); |
592 | ||
593 | default: | |
594 | return g_strdup_printf("unknown"); | |
595 | } | |
596 | } | |
597 | ||
dfe9ea20 MAL |
598 | static void update_ioc_handlers(SocketChardev *s) |
599 | { | |
600 | Chardev *chr = CHARDEV(s); | |
601 | ||
32423cca | 602 | if (s->state != TCP_CHARDEV_STATE_CONNECTED) { |
dfe9ea20 MAL |
603 | return; |
604 | } | |
605 | ||
606 | remove_fd_in_watch(chr); | |
607 | chr->gsource = io_add_watch_poll(chr, s->ioc, | |
608 | tcp_chr_read_poll, | |
609 | tcp_chr_read, chr, | |
610 | chr->gcontext); | |
611 | ||
612 | remove_hup_source(s); | |
613 | s->hup_source = qio_channel_create_watch(s->ioc, G_IO_HUP); | |
614 | g_source_set_callback(s->hup_source, (GSourceFunc)tcp_chr_hup, | |
615 | chr, NULL); | |
616 | g_source_attach(s->hup_source, chr->gcontext); | |
617 | } | |
618 | ||
d24ca4b8 MAL |
619 | static void tcp_chr_connect(void *opaque) |
620 | { | |
621 | Chardev *chr = CHARDEV(opaque); | |
622 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
623 | ||
624 | g_free(chr->filename); | |
4493b6a5 | 625 | chr->filename = qemu_chr_compute_filename(s); |
d24ca4b8 | 626 | |
32423cca | 627 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTED); |
dfe9ea20 | 628 | update_ioc_handlers(s); |
63618135 | 629 | qemu_chr_be_event(chr, CHR_EVENT_OPENED); |
d24ca4b8 MAL |
630 | } |
631 | ||
ce1230c0 PX |
632 | static void tcp_chr_telnet_destroy(SocketChardev *s) |
633 | { | |
634 | if (s->telnet_source) { | |
635 | g_source_destroy(s->telnet_source); | |
636 | g_source_unref(s->telnet_source); | |
637 | s->telnet_source = NULL; | |
638 | } | |
639 | } | |
640 | ||
bb86d05f | 641 | static void tcp_chr_update_read_handler(Chardev *chr) |
d24ca4b8 MAL |
642 | { |
643 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
644 | ||
5b774fe5 | 645 | if (s->listener && s->state == TCP_CHARDEV_STATE_DISCONNECTED) { |
3da9de5c PX |
646 | /* |
647 | * It's possible that chardev context is changed in | |
648 | * qemu_chr_be_update_read_handlers(). Reset it for QIO net | |
649 | * listener if there is. | |
650 | */ | |
651 | qio_net_listener_set_client_func_full(s->listener, tcp_chr_accept, | |
652 | chr, NULL, chr->gcontext); | |
653 | } | |
654 | ||
ce1230c0 PX |
655 | if (s->telnet_source) { |
656 | tcp_chr_telnet_init(CHARDEV(s)); | |
657 | } | |
658 | ||
dfe9ea20 | 659 | update_ioc_handlers(s); |
d24ca4b8 MAL |
660 | } |
661 | ||
d24ca4b8 MAL |
662 | static gboolean tcp_chr_telnet_init_io(QIOChannel *ioc, |
663 | GIOCondition cond G_GNUC_UNUSED, | |
664 | gpointer user_data) | |
665 | { | |
ce1230c0 PX |
666 | SocketChardev *s = user_data; |
667 | Chardev *chr = CHARDEV(s); | |
668 | TCPChardevTelnetInit *init = s->telnet_init; | |
d24ca4b8 MAL |
669 | ssize_t ret; |
670 | ||
ce1230c0 PX |
671 | assert(init); |
672 | ||
d24ca4b8 MAL |
673 | ret = qio_channel_write(ioc, init->buf, init->buflen, NULL); |
674 | if (ret < 0) { | |
675 | if (ret == QIO_CHANNEL_ERR_BLOCK) { | |
676 | ret = 0; | |
677 | } else { | |
ce1230c0 | 678 | tcp_chr_disconnect(chr); |
8b2ec54f | 679 | goto end; |
d24ca4b8 MAL |
680 | } |
681 | } | |
682 | init->buflen -= ret; | |
683 | ||
684 | if (init->buflen == 0) { | |
ce1230c0 | 685 | tcp_chr_connect(chr); |
8b2ec54f | 686 | goto end; |
d24ca4b8 MAL |
687 | } |
688 | ||
689 | memmove(init->buf, init->buf + ret, init->buflen); | |
690 | ||
8b2ec54f PX |
691 | return G_SOURCE_CONTINUE; |
692 | ||
693 | end: | |
ce1230c0 PX |
694 | g_free(s->telnet_init); |
695 | s->telnet_init = NULL; | |
696 | g_source_unref(s->telnet_source); | |
697 | s->telnet_source = NULL; | |
8b2ec54f | 698 | return G_SOURCE_REMOVE; |
d24ca4b8 MAL |
699 | } |
700 | ||
701 | static void tcp_chr_telnet_init(Chardev *chr) | |
702 | { | |
703 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
ce1230c0 | 704 | TCPChardevTelnetInit *init; |
d24ca4b8 MAL |
705 | size_t n = 0; |
706 | ||
ce1230c0 PX |
707 | /* Destroy existing task */ |
708 | tcp_chr_telnet_destroy(s); | |
709 | ||
710 | if (s->telnet_init) { | |
711 | /* We are possibly during a handshake already */ | |
712 | goto cont; | |
713 | } | |
714 | ||
715 | s->telnet_init = g_new0(TCPChardevTelnetInit, 1); | |
716 | init = s->telnet_init; | |
717 | ||
d24ca4b8 MAL |
718 | #define IACSET(x, a, b, c) \ |
719 | do { \ | |
720 | x[n++] = a; \ | |
721 | x[n++] = b; \ | |
722 | x[n++] = c; \ | |
723 | } while (0) | |
724 | ||
ae92cbd5 JL |
725 | if (!s->is_tn3270) { |
726 | init->buflen = 12; | |
727 | /* Prep the telnet negotion to put telnet in binary, | |
728 | * no echo, single char mode */ | |
729 | IACSET(init->buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ | |
730 | IACSET(init->buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ | |
731 | IACSET(init->buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ | |
732 | IACSET(init->buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ | |
733 | } else { | |
734 | init->buflen = 21; | |
735 | /* Prep the TN3270 negotion based on RFC1576 */ | |
736 | IACSET(init->buf, 0xff, 0xfd, 0x19); /* IAC DO EOR */ | |
737 | IACSET(init->buf, 0xff, 0xfb, 0x19); /* IAC WILL EOR */ | |
738 | IACSET(init->buf, 0xff, 0xfd, 0x00); /* IAC DO BINARY */ | |
739 | IACSET(init->buf, 0xff, 0xfb, 0x00); /* IAC WILL BINARY */ | |
740 | IACSET(init->buf, 0xff, 0xfd, 0x18); /* IAC DO TERMINAL TYPE */ | |
741 | IACSET(init->buf, 0xff, 0xfa, 0x18); /* IAC SB TERMINAL TYPE */ | |
742 | IACSET(init->buf, 0x01, 0xff, 0xf0); /* SEND IAC SE */ | |
743 | } | |
d24ca4b8 MAL |
744 | |
745 | #undef IACSET | |
746 | ||
ce1230c0 PX |
747 | cont: |
748 | s->telnet_source = qio_channel_add_watch_source(s->ioc, G_IO_OUT, | |
749 | tcp_chr_telnet_init_io, | |
750 | s, NULL, | |
751 | chr->gcontext); | |
d24ca4b8 MAL |
752 | } |
753 | ||
754 | ||
981b06e7 JS |
755 | static void tcp_chr_websock_handshake(QIOTask *task, gpointer user_data) |
756 | { | |
757 | Chardev *chr = user_data; | |
758 | SocketChardev *s = user_data; | |
759 | ||
760 | if (qio_task_propagate_error(task, NULL)) { | |
761 | tcp_chr_disconnect(chr); | |
762 | } else { | |
763 | if (s->do_telnetopt) { | |
764 | tcp_chr_telnet_init(chr); | |
765 | } else { | |
766 | tcp_chr_connect(chr); | |
767 | } | |
768 | } | |
769 | } | |
770 | ||
771 | ||
772 | static void tcp_chr_websock_init(Chardev *chr) | |
773 | { | |
774 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
775 | QIOChannelWebsock *wioc = NULL; | |
776 | gchar *name; | |
777 | ||
778 | wioc = qio_channel_websock_new_server(s->ioc); | |
779 | ||
780 | name = g_strdup_printf("chardev-websocket-server-%s", chr->label); | |
781 | qio_channel_set_name(QIO_CHANNEL(wioc), name); | |
782 | g_free(name); | |
783 | object_unref(OBJECT(s->ioc)); | |
784 | s->ioc = QIO_CHANNEL(wioc); | |
785 | ||
786 | qio_channel_websock_handshake(wioc, tcp_chr_websock_handshake, chr, NULL); | |
787 | } | |
788 | ||
789 | ||
d24ca4b8 MAL |
790 | static void tcp_chr_tls_handshake(QIOTask *task, |
791 | gpointer user_data) | |
792 | { | |
793 | Chardev *chr = user_data; | |
794 | SocketChardev *s = user_data; | |
795 | ||
796 | if (qio_task_propagate_error(task, NULL)) { | |
797 | tcp_chr_disconnect(chr); | |
798 | } else { | |
981b06e7 JS |
799 | if (s->is_websock) { |
800 | tcp_chr_websock_init(chr); | |
801 | } else if (s->do_telnetopt) { | |
d24ca4b8 MAL |
802 | tcp_chr_telnet_init(chr); |
803 | } else { | |
804 | tcp_chr_connect(chr); | |
805 | } | |
806 | } | |
807 | } | |
808 | ||
809 | ||
810 | static void tcp_chr_tls_init(Chardev *chr) | |
811 | { | |
812 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
813 | QIOChannelTLS *tioc; | |
814 | Error *err = NULL; | |
815 | gchar *name; | |
816 | ||
817 | if (s->is_listen) { | |
818 | tioc = qio_channel_tls_new_server( | |
819 | s->ioc, s->tls_creds, | |
fd4a5fd4 | 820 | s->tls_authz, |
d24ca4b8 MAL |
821 | &err); |
822 | } else { | |
823 | tioc = qio_channel_tls_new_client( | |
824 | s->ioc, s->tls_creds, | |
bd269ebc | 825 | s->addr->u.inet.host, |
d24ca4b8 MAL |
826 | &err); |
827 | } | |
828 | if (tioc == NULL) { | |
829 | error_free(err); | |
830 | tcp_chr_disconnect(chr); | |
831 | return; | |
832 | } | |
833 | name = g_strdup_printf("chardev-tls-%s-%s", | |
834 | s->is_listen ? "server" : "client", | |
835 | chr->label); | |
836 | qio_channel_set_name(QIO_CHANNEL(tioc), name); | |
837 | g_free(name); | |
838 | object_unref(OBJECT(s->ioc)); | |
839 | s->ioc = QIO_CHANNEL(tioc); | |
840 | ||
841 | qio_channel_tls_handshake(tioc, | |
842 | tcp_chr_tls_handshake, | |
843 | chr, | |
1939ccda | 844 | NULL, |
05b6cc4a | 845 | chr->gcontext); |
d24ca4b8 MAL |
846 | } |
847 | ||
848 | ||
849 | static void tcp_chr_set_client_ioc_name(Chardev *chr, | |
850 | QIOChannelSocket *sioc) | |
851 | { | |
852 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
853 | char *name; | |
854 | name = g_strdup_printf("chardev-tcp-%s-%s", | |
855 | s->is_listen ? "server" : "client", | |
856 | chr->label); | |
857 | qio_channel_set_name(QIO_CHANNEL(sioc), name); | |
858 | g_free(name); | |
859 | ||
860 | } | |
861 | ||
862 | static int tcp_chr_new_client(Chardev *chr, QIOChannelSocket *sioc) | |
863 | { | |
864 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
865 | ||
32423cca | 866 | if (s->state != TCP_CHARDEV_STATE_CONNECTING) { |
d24ca4b8 MAL |
867 | return -1; |
868 | } | |
869 | ||
870 | s->ioc = QIO_CHANNEL(sioc); | |
871 | object_ref(OBJECT(sioc)); | |
872 | s->sioc = sioc; | |
873 | object_ref(OBJECT(sioc)); | |
874 | ||
875 | qio_channel_set_blocking(s->ioc, false, NULL); | |
876 | ||
877 | if (s->do_nodelay) { | |
878 | qio_channel_set_delay(s->ioc, false); | |
879 | } | |
194b7f0d | 880 | if (s->listener) { |
3da9de5c PX |
881 | qio_net_listener_set_client_func_full(s->listener, NULL, NULL, |
882 | NULL, chr->gcontext); | |
d24ca4b8 MAL |
883 | } |
884 | ||
885 | if (s->tls_creds) { | |
886 | tcp_chr_tls_init(chr); | |
981b06e7 JS |
887 | } else if (s->is_websock) { |
888 | tcp_chr_websock_init(chr); | |
889 | } else if (s->do_telnetopt) { | |
890 | tcp_chr_telnet_init(chr); | |
d24ca4b8 | 891 | } else { |
981b06e7 | 892 | tcp_chr_connect(chr); |
d24ca4b8 MAL |
893 | } |
894 | ||
895 | return 0; | |
896 | } | |
897 | ||
898 | ||
899 | static int tcp_chr_add_client(Chardev *chr, int fd) | |
900 | { | |
901 | int ret; | |
902 | QIOChannelSocket *sioc; | |
32423cca DB |
903 | SocketChardev *s = SOCKET_CHARDEV(chr); |
904 | ||
905 | if (s->state != TCP_CHARDEV_STATE_DISCONNECTED) { | |
906 | return -1; | |
907 | } | |
d24ca4b8 MAL |
908 | |
909 | sioc = qio_channel_socket_new_fd(fd, NULL); | |
910 | if (!sioc) { | |
911 | return -1; | |
912 | } | |
32423cca | 913 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
d24ca4b8 MAL |
914 | tcp_chr_set_client_ioc_name(chr, sioc); |
915 | ret = tcp_chr_new_client(chr, sioc); | |
916 | object_unref(OBJECT(sioc)); | |
917 | return ret; | |
918 | } | |
919 | ||
194b7f0d DB |
920 | static void tcp_chr_accept(QIONetListener *listener, |
921 | QIOChannelSocket *cioc, | |
922 | void *opaque) | |
d24ca4b8 MAL |
923 | { |
924 | Chardev *chr = CHARDEV(opaque); | |
32423cca | 925 | SocketChardev *s = SOCKET_CHARDEV(chr); |
d24ca4b8 | 926 | |
32423cca | 927 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
194b7f0d DB |
928 | tcp_chr_set_client_ioc_name(chr, cioc); |
929 | tcp_chr_new_client(chr, cioc); | |
d24ca4b8 MAL |
930 | } |
931 | ||
efae0b92 DB |
932 | |
933 | static int tcp_chr_connect_client_sync(Chardev *chr, Error **errp) | |
934 | { | |
935 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
936 | QIOChannelSocket *sioc = qio_channel_socket_new(); | |
32423cca | 937 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
efae0b92 DB |
938 | tcp_chr_set_client_ioc_name(chr, sioc); |
939 | if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) { | |
32423cca | 940 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); |
efae0b92 DB |
941 | object_unref(OBJECT(sioc)); |
942 | return -1; | |
943 | } | |
944 | tcp_chr_new_client(chr, sioc); | |
945 | object_unref(OBJECT(sioc)); | |
946 | return 0; | |
947 | } | |
948 | ||
949 | ||
950 | static void tcp_chr_accept_server_sync(Chardev *chr) | |
d24ca4b8 MAL |
951 | { |
952 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
953 | QIOChannelSocket *sioc; | |
efae0b92 DB |
954 | info_report("QEMU waiting for connection on: %s", |
955 | chr->filename); | |
32423cca | 956 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
efae0b92 DB |
957 | sioc = qio_net_listener_wait_client(s->listener); |
958 | tcp_chr_set_client_ioc_name(chr, sioc); | |
959 | tcp_chr_new_client(chr, sioc); | |
960 | object_unref(OBJECT(sioc)); | |
961 | } | |
962 | ||
d24ca4b8 | 963 | |
efae0b92 DB |
964 | static int tcp_chr_wait_connected(Chardev *chr, Error **errp) |
965 | { | |
966 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
d1885e54 DB |
967 | const char *opts[] = { "telnet", "tn3270", "websock", "tls-creds" }; |
968 | bool optset[] = { s->is_telnet, s->is_tn3270, s->is_websock, s->tls_creds }; | |
969 | size_t i; | |
970 | ||
971 | QEMU_BUILD_BUG_ON(G_N_ELEMENTS(opts) != G_N_ELEMENTS(optset)); | |
972 | for (i = 0; i < G_N_ELEMENTS(opts); i++) { | |
973 | if (optset[i]) { | |
974 | error_setg(errp, | |
975 | "'%s' option is incompatible with waiting for " | |
976 | "connection completion", opts[i]); | |
977 | return -1; | |
978 | } | |
979 | } | |
980 | ||
4b47373a DB |
981 | tcp_chr_reconn_timer_cancel(s); |
982 | ||
983 | /* | |
984 | * We expect states to be as follows: | |
985 | * | |
986 | * - server | |
987 | * - wait -> CONNECTED | |
988 | * - nowait -> DISCONNECTED | |
989 | * - client | |
990 | * - reconnect == 0 -> CONNECTED | |
991 | * - reconnect != 0 -> CONNECTING | |
992 | * | |
993 | */ | |
994 | if (s->state == TCP_CHARDEV_STATE_CONNECTING) { | |
995 | if (!s->connect_task) { | |
996 | error_setg(errp, | |
997 | "Unexpected 'connecting' state without connect task " | |
998 | "while waiting for connection completion"); | |
999 | return -1; | |
1000 | } | |
1001 | /* | |
1002 | * tcp_chr_wait_connected should only ever be run from the | |
1003 | * main loop thread associated with chr->gcontext, otherwise | |
1004 | * qio_task_wait_thread has a dangerous race condition with | |
1005 | * free'ing of the s->connect_task object. | |
1006 | * | |
1007 | * Acquiring the main context doesn't 100% prove we're in | |
1008 | * the main loop thread, but it does at least guarantee | |
1009 | * that the main loop won't be executed by another thread | |
1010 | * avoiding the race condition with the task idle callback. | |
1011 | */ | |
1012 | g_main_context_acquire(chr->gcontext); | |
1013 | qio_task_wait_thread(s->connect_task); | |
1014 | g_main_context_release(chr->gcontext); | |
1015 | ||
1016 | /* | |
1017 | * The completion callback (qemu_chr_socket_connected) for | |
1018 | * s->connect_task should have set this to NULL by the time | |
1019 | * qio_task_wait_thread has returned. | |
1020 | */ | |
1021 | assert(!s->connect_task); | |
1022 | ||
1023 | /* | |
1024 | * NB we are *not* guaranteed to have "s->state == ..CONNECTED" | |
1025 | * at this point as this first connect may be failed, so | |
1026 | * allow the next loop to run regardless. | |
1027 | */ | |
1028 | } | |
1029 | ||
1030 | while (s->state != TCP_CHARDEV_STATE_CONNECTED) { | |
d24ca4b8 | 1031 | if (s->is_listen) { |
efae0b92 | 1032 | tcp_chr_accept_server_sync(chr); |
d24ca4b8 | 1033 | } else { |
25d93b6a DB |
1034 | Error *err = NULL; |
1035 | if (tcp_chr_connect_client_sync(chr, &err) < 0) { | |
1036 | if (s->reconnect_time) { | |
1037 | error_free(err); | |
1038 | g_usleep(s->reconnect_time * 1000ULL * 1000ULL); | |
1039 | } else { | |
1040 | error_propagate(errp, err); | |
1041 | return -1; | |
1042 | } | |
d24ca4b8 | 1043 | } |
d24ca4b8 MAL |
1044 | } |
1045 | } | |
1046 | ||
1047 | return 0; | |
1048 | } | |
1049 | ||
1050 | static void char_socket_finalize(Object *obj) | |
1051 | { | |
1052 | Chardev *chr = CHARDEV(obj); | |
1053 | SocketChardev *s = SOCKET_CHARDEV(obj); | |
1054 | ||
1055 | tcp_chr_free_connection(chr); | |
2c716ba1 | 1056 | tcp_chr_reconn_timer_cancel(s); |
d24ca4b8 | 1057 | qapi_free_SocketAddress(s->addr); |
ce1230c0 PX |
1058 | tcp_chr_telnet_destroy(s); |
1059 | g_free(s->telnet_init); | |
194b7f0d | 1060 | if (s->listener) { |
3da9de5c PX |
1061 | qio_net_listener_set_client_func_full(s->listener, NULL, NULL, |
1062 | NULL, chr->gcontext); | |
194b7f0d | 1063 | object_unref(OBJECT(s->listener)); |
d24ca4b8 MAL |
1064 | } |
1065 | if (s->tls_creds) { | |
1066 | object_unref(OBJECT(s->tls_creds)); | |
1067 | } | |
fd4a5fd4 | 1068 | g_free(s->tls_authz); |
d24ca4b8 MAL |
1069 | |
1070 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); | |
1071 | } | |
1072 | ||
1073 | static void qemu_chr_socket_connected(QIOTask *task, void *opaque) | |
1074 | { | |
1075 | QIOChannelSocket *sioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task)); | |
1076 | Chardev *chr = CHARDEV(opaque); | |
1077 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
1078 | Error *err = NULL; | |
1079 | ||
4b47373a DB |
1080 | s->connect_task = NULL; |
1081 | ||
d24ca4b8 | 1082 | if (qio_task_propagate_error(task, &err)) { |
32423cca | 1083 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); |
d24ca4b8 MAL |
1084 | check_report_connect_error(chr, err); |
1085 | error_free(err); | |
1086 | goto cleanup; | |
1087 | } | |
1088 | ||
1089 | s->connect_err_reported = false; | |
1090 | tcp_chr_new_client(chr, sioc); | |
1091 | ||
1092 | cleanup: | |
1093 | object_unref(OBJECT(sioc)); | |
1094 | } | |
1095 | ||
4b47373a DB |
1096 | |
1097 | static void tcp_chr_connect_client_task(QIOTask *task, | |
1098 | gpointer opaque) | |
1099 | { | |
1100 | QIOChannelSocket *ioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task)); | |
1101 | SocketAddress *addr = opaque; | |
1102 | Error *err = NULL; | |
1103 | ||
1104 | qio_channel_socket_connect_sync(ioc, addr, &err); | |
1105 | ||
1106 | qio_task_set_error(task, err); | |
1107 | } | |
1108 | ||
1109 | ||
efae0b92 | 1110 | static void tcp_chr_connect_client_async(Chardev *chr) |
3e7d4d20 PX |
1111 | { |
1112 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
1113 | QIOChannelSocket *sioc; | |
1114 | ||
32423cca | 1115 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
3e7d4d20 PX |
1116 | sioc = qio_channel_socket_new(); |
1117 | tcp_chr_set_client_ioc_name(chr, sioc); | |
4b47373a DB |
1118 | /* |
1119 | * Normally code would use the qio_channel_socket_connect_async | |
1120 | * method which uses a QIOTask + qio_task_set_error internally | |
1121 | * to avoid blocking. The tcp_chr_wait_connected method, however, | |
1122 | * needs a way to synchronize with completion of the background | |
1123 | * connect task which can't be done with the QIOChannelSocket | |
1124 | * async APIs. Thus we must use QIOTask directly to implement | |
1125 | * the non-blocking concept locally. | |
1126 | */ | |
1127 | s->connect_task = qio_task_new(OBJECT(sioc), | |
1128 | qemu_chr_socket_connected, | |
1129 | chr, NULL); | |
1130 | qio_task_run_in_thread(s->connect_task, | |
1131 | tcp_chr_connect_client_task, | |
1132 | s->addr, | |
1133 | NULL, | |
1134 | chr->gcontext); | |
3e7d4d20 PX |
1135 | } |
1136 | ||
d24ca4b8 MAL |
1137 | static gboolean socket_reconnect_timeout(gpointer opaque) |
1138 | { | |
1139 | Chardev *chr = CHARDEV(opaque); | |
1140 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
d24ca4b8 | 1141 | |
78d01598 | 1142 | qemu_mutex_lock(&chr->chr_write_lock); |
2c716ba1 PX |
1143 | g_source_unref(s->reconnect_timer); |
1144 | s->reconnect_timer = NULL; | |
78d01598 | 1145 | qemu_mutex_unlock(&chr->chr_write_lock); |
d24ca4b8 MAL |
1146 | |
1147 | if (chr->be_open) { | |
1148 | return false; | |
1149 | } | |
1150 | ||
efae0b92 | 1151 | tcp_chr_connect_client_async(chr); |
d24ca4b8 MAL |
1152 | |
1153 | return false; | |
1154 | } | |
1155 | ||
1645984b | 1156 | |
b5e18e51 DB |
1157 | static int qmp_chardev_open_socket_server(Chardev *chr, |
1158 | bool is_telnet, | |
1159 | bool is_waitconnect, | |
1160 | Error **errp) | |
1161 | { | |
1162 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
1163 | char *name; | |
1164 | if (is_telnet) { | |
1165 | s->do_telnetopt = 1; | |
1166 | } | |
1167 | s->listener = qio_net_listener_new(); | |
1168 | ||
1169 | name = g_strdup_printf("chardev-tcp-listener-%s", chr->label); | |
1170 | qio_net_listener_set_name(s->listener, name); | |
1171 | g_free(name); | |
1172 | ||
fc8135c6 | 1173 | if (qio_net_listener_open_sync(s->listener, s->addr, 1, errp) < 0) { |
b5e18e51 DB |
1174 | object_unref(OBJECT(s->listener)); |
1175 | s->listener = NULL; | |
1176 | return -1; | |
1177 | } | |
1178 | ||
1179 | qapi_free_SocketAddress(s->addr); | |
1180 | s->addr = socket_local_address(s->listener->sioc[0]->fd, errp); | |
1181 | update_disconnected_filename(s); | |
1182 | ||
1183 | if (is_waitconnect) { | |
1184 | tcp_chr_accept_server_sync(chr); | |
1185 | } else { | |
1186 | qio_net_listener_set_client_func_full(s->listener, | |
1187 | tcp_chr_accept, | |
1188 | chr, NULL, | |
1189 | chr->gcontext); | |
1190 | } | |
1191 | ||
1192 | return 0; | |
1193 | } | |
1194 | ||
1195 | ||
1196 | static int qmp_chardev_open_socket_client(Chardev *chr, | |
1197 | int64_t reconnect, | |
1198 | Error **errp) | |
1199 | { | |
1200 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
1201 | ||
1202 | if (reconnect > 0) { | |
1203 | s->reconnect_time = reconnect; | |
1204 | tcp_chr_connect_client_async(chr); | |
1205 | return 0; | |
1206 | } else { | |
1207 | return tcp_chr_connect_client_sync(chr, errp); | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | ||
1645984b DB |
1212 | static bool qmp_chardev_validate_socket(ChardevSocket *sock, |
1213 | SocketAddress *addr, | |
1214 | Error **errp) | |
1215 | { | |
1216 | /* Validate any options which have a dependency on address type */ | |
1217 | switch (addr->type) { | |
1218 | case SOCKET_ADDRESS_TYPE_FD: | |
1219 | if (sock->has_reconnect) { | |
1220 | error_setg(errp, | |
1221 | "'reconnect' option is incompatible with " | |
1222 | "'fd' address type"); | |
1223 | return false; | |
1224 | } | |
1225 | if (sock->has_tls_creds && | |
1226 | !(sock->has_server && sock->server)) { | |
1227 | error_setg(errp, | |
1228 | "'tls_creds' option is incompatible with " | |
1229 | "'fd' address type as client"); | |
1230 | return false; | |
1231 | } | |
1232 | break; | |
1233 | ||
1234 | case SOCKET_ADDRESS_TYPE_UNIX: | |
1235 | if (sock->has_tls_creds) { | |
1236 | error_setg(errp, | |
1237 | "'tls_creds' option is incompatible with " | |
1238 | "'unix' address type"); | |
1239 | return false; | |
1240 | } | |
1241 | break; | |
1242 | ||
1243 | case SOCKET_ADDRESS_TYPE_INET: | |
1244 | break; | |
1245 | ||
1246 | case SOCKET_ADDRESS_TYPE_VSOCK: | |
1247 | if (sock->has_tls_creds) { | |
1248 | error_setg(errp, | |
1249 | "'tls_creds' option is incompatible with " | |
1250 | "'vsock' address type"); | |
1251 | return false; | |
1252 | } | |
1253 | ||
1254 | default: | |
1255 | break; | |
1256 | } | |
1257 | ||
fd4a5fd4 DB |
1258 | if (sock->has_tls_authz && !sock->has_tls_creds) { |
1259 | error_setg(errp, "'tls_authz' option requires 'tls_creds' option"); | |
1260 | return false; | |
1261 | } | |
1262 | ||
1645984b | 1263 | /* Validate any options which have a dependancy on client vs server */ |
4a0582f6 DB |
1264 | if (!sock->has_server || sock->server) { |
1265 | if (sock->has_reconnect) { | |
1266 | error_setg(errp, | |
1267 | "'reconnect' option is incompatible with " | |
1268 | "socket in server listen mode"); | |
1269 | return false; | |
1270 | } | |
1271 | } else { | |
1645984b DB |
1272 | if (sock->has_websocket && sock->websocket) { |
1273 | error_setg(errp, "%s", "Websocket client is not implemented"); | |
1274 | return false; | |
1275 | } | |
767abe7f | 1276 | if (sock->has_wait) { |
a9b305ba MAL |
1277 | warn_report("'wait' option is deprecated with " |
1278 | "socket in client connect mode"); | |
1279 | if (sock->wait) { | |
1280 | error_setg(errp, "%s", | |
1281 | "'wait' option is incompatible with " | |
1282 | "socket in client connect mode"); | |
1283 | return false; | |
1284 | } | |
767abe7f | 1285 | } |
1645984b DB |
1286 | } |
1287 | ||
1288 | return true; | |
1289 | } | |
1290 | ||
1291 | ||
d24ca4b8 MAL |
1292 | static void qmp_chardev_open_socket(Chardev *chr, |
1293 | ChardevBackend *backend, | |
1294 | bool *be_opened, | |
1295 | Error **errp) | |
1296 | { | |
1297 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
1298 | ChardevSocket *sock = backend->u.socket.data; | |
d24ca4b8 MAL |
1299 | bool do_nodelay = sock->has_nodelay ? sock->nodelay : false; |
1300 | bool is_listen = sock->has_server ? sock->server : true; | |
1301 | bool is_telnet = sock->has_telnet ? sock->telnet : false; | |
ae92cbd5 | 1302 | bool is_tn3270 = sock->has_tn3270 ? sock->tn3270 : false; |
d24ca4b8 | 1303 | bool is_waitconnect = sock->has_wait ? sock->wait : false; |
981b06e7 | 1304 | bool is_websock = sock->has_websocket ? sock->websocket : false; |
d24ca4b8 | 1305 | int64_t reconnect = sock->has_reconnect ? sock->reconnect : 0; |
bd269ebc | 1306 | SocketAddress *addr; |
d24ca4b8 | 1307 | |
d24ca4b8 MAL |
1308 | s->is_listen = is_listen; |
1309 | s->is_telnet = is_telnet; | |
ae92cbd5 | 1310 | s->is_tn3270 = is_tn3270; |
981b06e7 | 1311 | s->is_websock = is_websock; |
d24ca4b8 MAL |
1312 | s->do_nodelay = do_nodelay; |
1313 | if (sock->tls_creds) { | |
1314 | Object *creds; | |
1315 | creds = object_resolve_path_component( | |
1316 | object_get_objects_root(), sock->tls_creds); | |
1317 | if (!creds) { | |
1318 | error_setg(errp, "No TLS credentials with id '%s'", | |
1319 | sock->tls_creds); | |
e154fd79 | 1320 | return; |
d24ca4b8 MAL |
1321 | } |
1322 | s->tls_creds = (QCryptoTLSCreds *) | |
1323 | object_dynamic_cast(creds, | |
1324 | TYPE_QCRYPTO_TLS_CREDS); | |
1325 | if (!s->tls_creds) { | |
1326 | error_setg(errp, "Object with id '%s' is not TLS credentials", | |
1327 | sock->tls_creds); | |
e154fd79 | 1328 | return; |
d24ca4b8 MAL |
1329 | } |
1330 | object_ref(OBJECT(s->tls_creds)); | |
1331 | if (is_listen) { | |
1332 | if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { | |
1333 | error_setg(errp, "%s", | |
1334 | "Expected TLS credentials for server endpoint"); | |
e154fd79 | 1335 | return; |
d24ca4b8 MAL |
1336 | } |
1337 | } else { | |
1338 | if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) { | |
1339 | error_setg(errp, "%s", | |
1340 | "Expected TLS credentials for client endpoint"); | |
e154fd79 | 1341 | return; |
d24ca4b8 MAL |
1342 | } |
1343 | } | |
1344 | } | |
fd4a5fd4 | 1345 | s->tls_authz = g_strdup(sock->tls_authz); |
d24ca4b8 | 1346 | |
bd269ebc | 1347 | s->addr = addr = socket_address_flatten(sock->addr); |
d24ca4b8 | 1348 | |
1645984b | 1349 | if (!qmp_chardev_validate_socket(sock, addr, errp)) { |
e154fd79 | 1350 | return; |
4591bd46 | 1351 | } |
1645984b | 1352 | |
d24ca4b8 | 1353 | qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_RECONNECTABLE); |
ca0b64e5 | 1354 | /* TODO SOCKET_ADDRESS_FD where fd has AF_UNIX */ |
bd269ebc | 1355 | if (addr->type == SOCKET_ADDRESS_TYPE_UNIX) { |
d24ca4b8 MAL |
1356 | qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS); |
1357 | } | |
1358 | ||
1359 | /* be isn't opened until we get a connection */ | |
1360 | *be_opened = false; | |
1361 | ||
bbcde969 | 1362 | update_disconnected_filename(s); |
d24ca4b8 | 1363 | |
b5e18e51 DB |
1364 | if (s->is_listen) { |
1365 | if (qmp_chardev_open_socket_server(chr, is_telnet || is_tn3270, | |
1366 | is_waitconnect, errp) < 0) { | |
1367 | return; | |
d24ca4b8 | 1368 | } |
5573f98f | 1369 | } else { |
b5e18e51 | 1370 | if (qmp_chardev_open_socket_client(chr, reconnect, errp) < 0) { |
e154fd79 | 1371 | return; |
d24ca4b8 MAL |
1372 | } |
1373 | } | |
d24ca4b8 MAL |
1374 | } |
1375 | ||
1376 | static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend, | |
1377 | Error **errp) | |
1378 | { | |
d24ca4b8 MAL |
1379 | const char *path = qemu_opt_get(opts, "path"); |
1380 | const char *host = qemu_opt_get(opts, "host"); | |
1381 | const char *port = qemu_opt_get(opts, "port"); | |
0935700f | 1382 | const char *fd = qemu_opt_get(opts, "fd"); |
dfd100f2 | 1383 | SocketAddressLegacy *addr; |
d24ca4b8 MAL |
1384 | ChardevSocket *sock; |
1385 | ||
0935700f | 1386 | if ((!!path + !!fd + !!host) != 1) { |
9bb4060c | 1387 | error_setg(errp, |
0935700f | 1388 | "Exactly one of 'path', 'fd' or 'host' required"); |
9bb4060c DB |
1389 | return; |
1390 | } | |
1391 | ||
1645984b DB |
1392 | if (host && !port) { |
1393 | error_setg(errp, "chardev: socket: no port given"); | |
1394 | return; | |
d24ca4b8 MAL |
1395 | } |
1396 | ||
1645984b | 1397 | backend->type = CHARDEV_BACKEND_KIND_SOCKET; |
d24ca4b8 MAL |
1398 | sock = backend->u.socket.data = g_new0(ChardevSocket, 1); |
1399 | qemu_chr_parse_common(opts, qapi_ChardevSocket_base(sock)); | |
1400 | ||
5981c3a2 DB |
1401 | sock->has_nodelay = qemu_opt_get(opts, "delay"); |
1402 | sock->nodelay = !qemu_opt_get_bool(opts, "delay", true); | |
1403 | /* | |
1404 | * We have different default to QMP for 'server', hence | |
1405 | * we can't just check for existence of 'server' | |
1406 | */ | |
d24ca4b8 | 1407 | sock->has_server = true; |
5981c3a2 DB |
1408 | sock->server = qemu_opt_get_bool(opts, "server", false); |
1409 | sock->has_telnet = qemu_opt_get(opts, "telnet"); | |
1410 | sock->telnet = qemu_opt_get_bool(opts, "telnet", false); | |
1411 | sock->has_tn3270 = qemu_opt_get(opts, "tn3270"); | |
1412 | sock->tn3270 = qemu_opt_get_bool(opts, "tn3270", false); | |
1413 | sock->has_websocket = qemu_opt_get(opts, "websocket"); | |
1414 | sock->websocket = qemu_opt_get_bool(opts, "websocket", false); | |
767abe7f DB |
1415 | /* |
1416 | * We have different default to QMP for 'wait' when 'server' | |
1417 | * is set, hence we can't just check for existence of 'wait' | |
1418 | */ | |
5981c3a2 DB |
1419 | sock->has_wait = qemu_opt_find(opts, "wait") || sock->server; |
1420 | sock->wait = qemu_opt_get_bool(opts, "wait", true); | |
3b023756 | 1421 | sock->has_reconnect = qemu_opt_find(opts, "reconnect"); |
5981c3a2 DB |
1422 | sock->reconnect = qemu_opt_get_number(opts, "reconnect", 0); |
1423 | sock->has_tls_creds = qemu_opt_get(opts, "tls-creds"); | |
1424 | sock->tls_creds = g_strdup(qemu_opt_get(opts, "tls-creds")); | |
fd4a5fd4 DB |
1425 | sock->has_tls_authz = qemu_opt_get(opts, "tls-authz"); |
1426 | sock->tls_authz = g_strdup(qemu_opt_get(opts, "tls-authz")); | |
d24ca4b8 | 1427 | |
dfd100f2 | 1428 | addr = g_new0(SocketAddressLegacy, 1); |
d24ca4b8 MAL |
1429 | if (path) { |
1430 | UnixSocketAddress *q_unix; | |
dfd100f2 | 1431 | addr->type = SOCKET_ADDRESS_LEGACY_KIND_UNIX; |
d24ca4b8 MAL |
1432 | q_unix = addr->u.q_unix.data = g_new0(UnixSocketAddress, 1); |
1433 | q_unix->path = g_strdup(path); | |
9bb4060c | 1434 | } else if (host) { |
dfd100f2 | 1435 | addr->type = SOCKET_ADDRESS_LEGACY_KIND_INET; |
d24ca4b8 MAL |
1436 | addr->u.inet.data = g_new(InetSocketAddress, 1); |
1437 | *addr->u.inet.data = (InetSocketAddress) { | |
1438 | .host = g_strdup(host), | |
1439 | .port = g_strdup(port), | |
1440 | .has_to = qemu_opt_get(opts, "to"), | |
1441 | .to = qemu_opt_get_number(opts, "to", 0), | |
1442 | .has_ipv4 = qemu_opt_get(opts, "ipv4"), | |
1443 | .ipv4 = qemu_opt_get_bool(opts, "ipv4", 0), | |
1444 | .has_ipv6 = qemu_opt_get(opts, "ipv6"), | |
1445 | .ipv6 = qemu_opt_get_bool(opts, "ipv6", 0), | |
1446 | }; | |
0935700f DB |
1447 | } else if (fd) { |
1448 | addr->type = SOCKET_ADDRESS_LEGACY_KIND_FD; | |
1449 | addr->u.fd.data = g_new(String, 1); | |
1450 | addr->u.fd.data->str = g_strdup(fd); | |
9bb4060c DB |
1451 | } else { |
1452 | g_assert_not_reached(); | |
d24ca4b8 MAL |
1453 | } |
1454 | sock->addr = addr; | |
1455 | } | |
1456 | ||
123676e9 MAL |
1457 | static void |
1458 | char_socket_get_addr(Object *obj, Visitor *v, const char *name, | |
1459 | void *opaque, Error **errp) | |
1460 | { | |
1461 | SocketChardev *s = SOCKET_CHARDEV(obj); | |
1462 | ||
1463 | visit_type_SocketAddress(v, name, &s->addr, errp); | |
1464 | } | |
1465 | ||
da2d19b0 MAL |
1466 | static bool |
1467 | char_socket_get_connected(Object *obj, Error **errp) | |
1468 | { | |
1469 | SocketChardev *s = SOCKET_CHARDEV(obj); | |
1470 | ||
32423cca | 1471 | return s->state == TCP_CHARDEV_STATE_CONNECTED; |
da2d19b0 MAL |
1472 | } |
1473 | ||
d24ca4b8 MAL |
1474 | static void char_socket_class_init(ObjectClass *oc, void *data) |
1475 | { | |
1476 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
1477 | ||
1478 | cc->parse = qemu_chr_parse_socket; | |
1479 | cc->open = qmp_chardev_open_socket; | |
1480 | cc->chr_wait_connected = tcp_chr_wait_connected; | |
1481 | cc->chr_write = tcp_chr_write; | |
1482 | cc->chr_sync_read = tcp_chr_sync_read; | |
1483 | cc->chr_disconnect = tcp_chr_disconnect; | |
1484 | cc->get_msgfds = tcp_get_msgfds; | |
1485 | cc->set_msgfds = tcp_set_msgfds; | |
1486 | cc->chr_add_client = tcp_chr_add_client; | |
1487 | cc->chr_add_watch = tcp_chr_add_watch; | |
1488 | cc->chr_update_read_handler = tcp_chr_update_read_handler; | |
123676e9 MAL |
1489 | |
1490 | object_class_property_add(oc, "addr", "SocketAddress", | |
1491 | char_socket_get_addr, NULL, | |
1492 | NULL, NULL, &error_abort); | |
da2d19b0 MAL |
1493 | |
1494 | object_class_property_add_bool(oc, "connected", char_socket_get_connected, | |
1495 | NULL, &error_abort); | |
d24ca4b8 MAL |
1496 | } |
1497 | ||
1498 | static const TypeInfo char_socket_type_info = { | |
1499 | .name = TYPE_CHARDEV_SOCKET, | |
1500 | .parent = TYPE_CHARDEV, | |
1501 | .instance_size = sizeof(SocketChardev), | |
1502 | .instance_finalize = char_socket_finalize, | |
1503 | .class_init = char_socket_class_init, | |
1504 | }; | |
1505 | ||
1506 | static void register_types(void) | |
1507 | { | |
1508 | type_register_static(&char_socket_type_info); | |
1509 | } | |
1510 | ||
1511 | type_init(register_types); |