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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 | 27 | #include "io/channel-socket.h" |
981b06e7 | 28 | #include "io/channel-websock.h" |
d24ca4b8 | 29 | #include "qemu/error-report.h" |
0b8fa32f | 30 | #include "qemu/module.h" |
922a01a0 | 31 | #include "qemu/option.h" |
d24ca4b8 MAL |
32 | #include "qapi/error.h" |
33 | #include "qapi/clone-visitor.h" | |
9af23989 | 34 | #include "qapi/qapi-visit-sockets.h" |
8ee44806 | 35 | #include "qemu/yank.h" |
d24ca4b8 | 36 | |
8228e353 | 37 | #include "chardev/char-io.h" |
fa670c80 | 38 | #include "chardev/char-socket.h" |
d24ca4b8 MAL |
39 | |
40 | static gboolean socket_reconnect_timeout(gpointer opaque); | |
ce1230c0 | 41 | static void tcp_chr_telnet_init(Chardev *chr); |
d24ca4b8 | 42 | |
32423cca DB |
43 | static void tcp_chr_change_state(SocketChardev *s, TCPChardevState state) |
44 | { | |
45 | switch (state) { | |
46 | case TCP_CHARDEV_STATE_DISCONNECTED: | |
47 | break; | |
48 | case TCP_CHARDEV_STATE_CONNECTING: | |
49 | assert(s->state == TCP_CHARDEV_STATE_DISCONNECTED); | |
50 | break; | |
51 | case TCP_CHARDEV_STATE_CONNECTED: | |
52 | assert(s->state == TCP_CHARDEV_STATE_CONNECTING); | |
53 | break; | |
54 | } | |
55 | s->state = state; | |
56 | } | |
57 | ||
2c716ba1 PX |
58 | static void tcp_chr_reconn_timer_cancel(SocketChardev *s) |
59 | { | |
60 | if (s->reconnect_timer) { | |
61 | g_source_destroy(s->reconnect_timer); | |
62 | g_source_unref(s->reconnect_timer); | |
63 | s->reconnect_timer = NULL; | |
64 | } | |
65 | } | |
66 | ||
d24ca4b8 MAL |
67 | static void qemu_chr_socket_restart_timer(Chardev *chr) |
68 | { | |
69 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
70 | char *name; | |
71 | ||
32423cca | 72 | assert(s->state == TCP_CHARDEV_STATE_DISCONNECTED); |
4b47373a | 73 | assert(!s->reconnect_timer); |
d24ca4b8 | 74 | name = g_strdup_printf("chardev-socket-reconnect-%s", chr->label); |
2c716ba1 PX |
75 | s->reconnect_timer = qemu_chr_timeout_add_ms(chr, |
76 | s->reconnect_time * 1000, | |
77 | socket_reconnect_timeout, | |
78 | chr); | |
79 | g_source_set_name(s->reconnect_timer, name); | |
d24ca4b8 MAL |
80 | g_free(name); |
81 | } | |
82 | ||
83 | static void check_report_connect_error(Chardev *chr, | |
84 | Error *err) | |
85 | { | |
86 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
87 | ||
88 | if (!s->connect_err_reported) { | |
5217f188 MA |
89 | error_reportf_err(err, |
90 | "Unable to connect character device %s: ", | |
91 | chr->label); | |
d24ca4b8 | 92 | s->connect_err_reported = true; |
ed4e0d2e | 93 | } else { |
94 | error_free(err); | |
d24ca4b8 MAL |
95 | } |
96 | qemu_chr_socket_restart_timer(chr); | |
97 | } | |
98 | ||
194b7f0d DB |
99 | static void tcp_chr_accept(QIONetListener *listener, |
100 | QIOChannelSocket *cioc, | |
101 | void *opaque); | |
d24ca4b8 | 102 | |
b0a335e3 | 103 | static int tcp_chr_read_poll(void *opaque); |
78d01598 | 104 | static void tcp_chr_disconnect_locked(Chardev *chr); |
b0a335e3 | 105 | |
d24ca4b8 MAL |
106 | /* Called with chr_write_lock held. */ |
107 | static int tcp_chr_write(Chardev *chr, const uint8_t *buf, int len) | |
108 | { | |
109 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
110 | ||
32423cca | 111 | if (s->state == TCP_CHARDEV_STATE_CONNECTED) { |
d24ca4b8 MAL |
112 | int ret = io_channel_send_full(s->ioc, buf, len, |
113 | s->write_msgfds, | |
114 | s->write_msgfds_num); | |
115 | ||
81e34930 XC |
116 | /* free the written msgfds in any cases |
117 | * other than ret < 0 && errno == EAGAIN | |
118 | */ | |
119 | if (!(ret < 0 && EAGAIN == errno) | |
120 | && s->write_msgfds_num) { | |
d24ca4b8 MAL |
121 | g_free(s->write_msgfds); |
122 | s->write_msgfds = 0; | |
123 | s->write_msgfds_num = 0; | |
124 | } | |
125 | ||
b0a335e3 AN |
126 | if (ret < 0 && errno != EAGAIN) { |
127 | if (tcp_chr_read_poll(chr) <= 0) { | |
27109447 | 128 | /* Perform disconnect and return error. */ |
78d01598 | 129 | tcp_chr_disconnect_locked(chr); |
b0a335e3 AN |
130 | } /* else let the read handler finish it properly */ |
131 | } | |
132 | ||
d24ca4b8 MAL |
133 | return ret; |
134 | } else { | |
27109447 DS |
135 | /* Indicate an error. */ |
136 | errno = EIO; | |
137 | return -1; | |
d24ca4b8 MAL |
138 | } |
139 | } | |
140 | ||
141 | static int tcp_chr_read_poll(void *opaque) | |
142 | { | |
143 | Chardev *chr = CHARDEV(opaque); | |
144 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
32423cca | 145 | if (s->state != TCP_CHARDEV_STATE_CONNECTED) { |
d24ca4b8 MAL |
146 | return 0; |
147 | } | |
148 | s->max_size = qemu_chr_be_can_write(chr); | |
149 | return s->max_size; | |
150 | } | |
151 | ||
d24ca4b8 MAL |
152 | static void tcp_chr_process_IAC_bytes(Chardev *chr, |
153 | SocketChardev *s, | |
154 | uint8_t *buf, int *size) | |
155 | { | |
ae92cbd5 JL |
156 | /* Handle any telnet or tn3270 client's basic IAC options. |
157 | * For telnet options, it satisfies char by char mode with no echo. | |
158 | * For tn3270 options, it satisfies binary mode with EOR. | |
159 | * All IAC options will be removed from the buf and the do_opt | |
160 | * pointer will be used to track the state of the width of the | |
161 | * IAC information. | |
d24ca4b8 | 162 | * |
ae92cbd5 JL |
163 | * RFC854: "All TELNET commands consist of at least a two byte sequence. |
164 | * The commands dealing with option negotiation are three byte sequences, | |
165 | * the third byte being the code for the option referenced." | |
166 | * "IAC BREAK", "IAC IP", "IAC NOP" and the double IAC are two bytes. | |
167 | * "IAC SB", "IAC SE" and "IAC EOR" are saved to split up data boundary | |
168 | * for tn3270. | |
169 | * NOP, Break and Interrupt Process(IP) might be encountered during a TN3270 | |
170 | * session, and NOP and IP need to be done later. | |
d24ca4b8 MAL |
171 | */ |
172 | ||
173 | int i; | |
174 | int j = 0; | |
175 | ||
176 | for (i = 0; i < *size; i++) { | |
177 | if (s->do_telnetopt > 1) { | |
178 | if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { | |
179 | /* Double IAC means send an IAC */ | |
180 | if (j != i) { | |
181 | buf[j] = buf[i]; | |
182 | } | |
183 | j++; | |
184 | s->do_telnetopt = 1; | |
185 | } else { | |
186 | if ((unsigned char)buf[i] == IAC_BREAK | |
187 | && s->do_telnetopt == 2) { | |
188 | /* Handle IAC break commands by sending a serial break */ | |
189 | qemu_chr_be_event(chr, CHR_EVENT_BREAK); | |
190 | s->do_telnetopt++; | |
ae92cbd5 JL |
191 | } else if (s->is_tn3270 && ((unsigned char)buf[i] == IAC_EOR |
192 | || (unsigned char)buf[i] == IAC_SB | |
193 | || (unsigned char)buf[i] == IAC_SE) | |
194 | && s->do_telnetopt == 2) { | |
195 | buf[j++] = IAC; | |
196 | buf[j++] = buf[i]; | |
197 | s->do_telnetopt++; | |
198 | } else if (s->is_tn3270 && ((unsigned char)buf[i] == IAC_IP | |
199 | || (unsigned char)buf[i] == IAC_NOP) | |
200 | && s->do_telnetopt == 2) { | |
201 | /* TODO: IP and NOP need to be implemented later. */ | |
202 | s->do_telnetopt++; | |
d24ca4b8 MAL |
203 | } |
204 | s->do_telnetopt++; | |
205 | } | |
206 | if (s->do_telnetopt >= 4) { | |
207 | s->do_telnetopt = 1; | |
208 | } | |
209 | } else { | |
210 | if ((unsigned char)buf[i] == IAC) { | |
211 | s->do_telnetopt = 2; | |
212 | } else { | |
213 | if (j != i) { | |
214 | buf[j] = buf[i]; | |
215 | } | |
216 | j++; | |
217 | } | |
218 | } | |
219 | } | |
220 | *size = j; | |
221 | } | |
222 | ||
223 | static int tcp_get_msgfds(Chardev *chr, int *fds, int num) | |
224 | { | |
225 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
226 | ||
227 | int to_copy = (s->read_msgfds_num < num) ? s->read_msgfds_num : num; | |
228 | ||
229 | assert(num <= TCP_MAX_FDS); | |
230 | ||
231 | if (to_copy) { | |
232 | int i; | |
233 | ||
234 | memcpy(fds, s->read_msgfds, to_copy * sizeof(int)); | |
235 | ||
236 | /* Close unused fds */ | |
237 | for (i = to_copy; i < s->read_msgfds_num; i++) { | |
238 | close(s->read_msgfds[i]); | |
239 | } | |
240 | ||
241 | g_free(s->read_msgfds); | |
242 | s->read_msgfds = 0; | |
243 | s->read_msgfds_num = 0; | |
244 | } | |
245 | ||
246 | return to_copy; | |
247 | } | |
248 | ||
249 | static int tcp_set_msgfds(Chardev *chr, int *fds, int num) | |
250 | { | |
251 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
252 | ||
253 | /* clear old pending fd array */ | |
254 | g_free(s->write_msgfds); | |
255 | s->write_msgfds = NULL; | |
256 | s->write_msgfds_num = 0; | |
257 | ||
32423cca | 258 | if ((s->state != TCP_CHARDEV_STATE_CONNECTED) || |
d24ca4b8 MAL |
259 | !qio_channel_has_feature(s->ioc, |
260 | QIO_CHANNEL_FEATURE_FD_PASS)) { | |
261 | return -1; | |
262 | } | |
263 | ||
264 | if (num) { | |
265 | s->write_msgfds = g_new(int, num); | |
266 | memcpy(s->write_msgfds, fds, num * sizeof(int)); | |
267 | } | |
268 | ||
269 | s->write_msgfds_num = num; | |
270 | ||
271 | return 0; | |
272 | } | |
273 | ||
274 | static ssize_t tcp_chr_recv(Chardev *chr, char *buf, size_t len) | |
275 | { | |
276 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
277 | struct iovec iov = { .iov_base = buf, .iov_len = len }; | |
278 | int ret; | |
279 | size_t i; | |
280 | int *msgfds = NULL; | |
281 | size_t msgfds_num = 0; | |
282 | ||
283 | if (qio_channel_has_feature(s->ioc, QIO_CHANNEL_FEATURE_FD_PASS)) { | |
284 | ret = qio_channel_readv_full(s->ioc, &iov, 1, | |
285 | &msgfds, &msgfds_num, | |
286 | NULL); | |
287 | } else { | |
288 | ret = qio_channel_readv_full(s->ioc, &iov, 1, | |
289 | NULL, NULL, | |
290 | NULL); | |
291 | } | |
292 | ||
d24ca4b8 MAL |
293 | if (msgfds_num) { |
294 | /* close and clean read_msgfds */ | |
295 | for (i = 0; i < s->read_msgfds_num; i++) { | |
296 | close(s->read_msgfds[i]); | |
297 | } | |
298 | ||
299 | if (s->read_msgfds_num) { | |
300 | g_free(s->read_msgfds); | |
301 | } | |
302 | ||
303 | s->read_msgfds = msgfds; | |
304 | s->read_msgfds_num = msgfds_num; | |
305 | } | |
306 | ||
307 | for (i = 0; i < s->read_msgfds_num; i++) { | |
308 | int fd = s->read_msgfds[i]; | |
309 | if (fd < 0) { | |
310 | continue; | |
311 | } | |
312 | ||
313 | /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */ | |
ff5927ba | 314 | qemu_socket_set_block(fd); |
d24ca4b8 MAL |
315 | |
316 | #ifndef MSG_CMSG_CLOEXEC | |
317 | qemu_set_cloexec(fd); | |
318 | #endif | |
319 | } | |
320 | ||
e8797505 RK |
321 | if (ret == QIO_CHANNEL_ERR_BLOCK) { |
322 | errno = EAGAIN; | |
323 | ret = -1; | |
324 | } else if (ret == -1) { | |
325 | errno = EIO; | |
326 | } | |
327 | ||
d24ca4b8 MAL |
328 | return ret; |
329 | } | |
330 | ||
331 | static GSource *tcp_chr_add_watch(Chardev *chr, GIOCondition cond) | |
332 | { | |
333 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
6585b162 PD |
334 | if (!s->ioc) { |
335 | return NULL; | |
336 | } | |
d24ca4b8 MAL |
337 | return qio_channel_create_watch(s->ioc, cond); |
338 | } | |
339 | ||
dfe9ea20 MAL |
340 | static void remove_hup_source(SocketChardev *s) |
341 | { | |
342 | if (s->hup_source != NULL) { | |
343 | g_source_destroy(s->hup_source); | |
344 | g_source_unref(s->hup_source); | |
345 | s->hup_source = NULL; | |
346 | } | |
347 | } | |
348 | ||
1a92d6d5 LS |
349 | static void char_socket_yank_iochannel(void *opaque) |
350 | { | |
351 | QIOChannel *ioc = QIO_CHANNEL(opaque); | |
352 | ||
353 | qio_channel_shutdown(ioc, QIO_CHANNEL_SHUTDOWN_BOTH, NULL); | |
354 | } | |
355 | ||
d24ca4b8 MAL |
356 | static void tcp_chr_free_connection(Chardev *chr) |
357 | { | |
358 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
359 | int i; | |
360 | ||
d24ca4b8 MAL |
361 | if (s->read_msgfds_num) { |
362 | for (i = 0; i < s->read_msgfds_num; i++) { | |
363 | close(s->read_msgfds[i]); | |
364 | } | |
365 | g_free(s->read_msgfds); | |
366 | s->read_msgfds = NULL; | |
367 | s->read_msgfds_num = 0; | |
368 | } | |
369 | ||
dfe9ea20 | 370 | remove_hup_source(s); |
a8aa6197 | 371 | |
d24ca4b8 | 372 | tcp_set_msgfds(chr, NULL, 0); |
b19456dd | 373 | remove_fd_in_watch(chr); |
ebae6477 MAL |
374 | if (s->registered_yank && |
375 | (s->state == TCP_CHARDEV_STATE_CONNECTING | |
376 | || s->state == TCP_CHARDEV_STATE_CONNECTED)) { | |
8ee44806 | 377 | yank_unregister_function(CHARDEV_YANK_INSTANCE(chr->label), |
1a92d6d5 | 378 | char_socket_yank_iochannel, |
8ee44806 LS |
379 | QIO_CHANNEL(s->sioc)); |
380 | } | |
d24ca4b8 MAL |
381 | object_unref(OBJECT(s->sioc)); |
382 | s->sioc = NULL; | |
383 | object_unref(OBJECT(s->ioc)); | |
384 | s->ioc = NULL; | |
385 | g_free(chr->filename); | |
386 | chr->filename = NULL; | |
32423cca | 387 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); |
d24ca4b8 MAL |
388 | } |
389 | ||
4493b6a5 | 390 | static const char *qemu_chr_socket_protocol(SocketChardev *s) |
d24ca4b8 | 391 | { |
4493b6a5 JS |
392 | if (s->is_telnet) { |
393 | return "telnet"; | |
394 | } | |
981b06e7 | 395 | return s->is_websock ? "websocket" : "tcp"; |
4493b6a5 JS |
396 | } |
397 | ||
398 | static char *qemu_chr_socket_address(SocketChardev *s, const char *prefix) | |
399 | { | |
400 | switch (s->addr->type) { | |
bd269ebc | 401 | case SOCKET_ADDRESS_TYPE_INET: |
d24ca4b8 | 402 | return g_strdup_printf("%s%s:%s:%s%s", prefix, |
4493b6a5 JS |
403 | qemu_chr_socket_protocol(s), |
404 | s->addr->u.inet.host, | |
405 | s->addr->u.inet.port, | |
9d902d51 | 406 | s->is_listen ? ",server=on" : ""); |
d24ca4b8 | 407 | break; |
bd269ebc | 408 | case SOCKET_ADDRESS_TYPE_UNIX: |
dea7cd17 MA |
409 | { |
410 | const char *tight = "", *abstract = ""; | |
411 | UnixSocketAddress *sa = &s->addr->u.q_unix; | |
412 | ||
8acefc79 | 413 | #ifdef CONFIG_LINUX |
dea7cd17 | 414 | if (sa->has_abstract && sa->abstract) { |
30f80be3 | 415 | abstract = ",abstract=on"; |
dea7cd17 | 416 | if (sa->has_tight && sa->tight) { |
30f80be3 | 417 | tight = ",tight=on"; |
dea7cd17 MA |
418 | } |
419 | } | |
8acefc79 | 420 | #endif |
dea7cd17 MA |
421 | |
422 | return g_strdup_printf("%sunix:%s%s%s%s", prefix, sa->path, | |
423 | abstract, tight, | |
9d902d51 | 424 | s->is_listen ? ",server=on" : ""); |
d24ca4b8 | 425 | break; |
dea7cd17 | 426 | } |
bd269ebc | 427 | case SOCKET_ADDRESS_TYPE_FD: |
4493b6a5 | 428 | return g_strdup_printf("%sfd:%s%s", prefix, s->addr->u.fd.str, |
9d902d51 | 429 | s->is_listen ? ",server=on" : ""); |
d24ca4b8 | 430 | break; |
bd269ebc | 431 | case SOCKET_ADDRESS_TYPE_VSOCK: |
d2e49aad | 432 | return g_strdup_printf("%svsock:%s:%s", prefix, |
4493b6a5 JS |
433 | s->addr->u.vsock.cid, |
434 | s->addr->u.vsock.port); | |
d24ca4b8 MAL |
435 | default: |
436 | abort(); | |
437 | } | |
438 | } | |
439 | ||
bbcde969 MAL |
440 | static void update_disconnected_filename(SocketChardev *s) |
441 | { | |
442 | Chardev *chr = CHARDEV(s); | |
443 | ||
444 | g_free(chr->filename); | |
90a6d17b | 445 | if (s->addr) { |
4493b6a5 | 446 | chr->filename = qemu_chr_socket_address(s, "disconnected:"); |
90a6d17b MAL |
447 | } else { |
448 | chr->filename = g_strdup("disconnected:socket"); | |
449 | } | |
bbcde969 MAL |
450 | } |
451 | ||
9cca7578 DB |
452 | /* NB may be called even if tcp_chr_connect has not been |
453 | * reached, due to TLS or telnet initialization failure, | |
32423cca | 454 | * so can *not* assume s->state == TCP_CHARDEV_STATE_CONNECTED |
78d01598 | 455 | * This must be called with chr->chr_write_lock held. |
9cca7578 | 456 | */ |
78d01598 | 457 | static void tcp_chr_disconnect_locked(Chardev *chr) |
d24ca4b8 MAL |
458 | { |
459 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
32423cca | 460 | bool emit_close = s->state == TCP_CHARDEV_STATE_CONNECTED; |
d24ca4b8 MAL |
461 | |
462 | tcp_chr_free_connection(chr); | |
463 | ||
194b7f0d | 464 | if (s->listener) { |
3da9de5c PX |
465 | qio_net_listener_set_client_func_full(s->listener, tcp_chr_accept, |
466 | chr, NULL, chr->gcontext); | |
d24ca4b8 | 467 | } |
bbcde969 | 468 | update_disconnected_filename(s); |
9cca7578 DB |
469 | if (emit_close) { |
470 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); | |
471 | } | |
2b61bb71 | 472 | if (s->reconnect_time && !s->reconnect_timer) { |
d24ca4b8 MAL |
473 | qemu_chr_socket_restart_timer(chr); |
474 | } | |
475 | } | |
476 | ||
78d01598 AG |
477 | static void tcp_chr_disconnect(Chardev *chr) |
478 | { | |
479 | qemu_mutex_lock(&chr->chr_write_lock); | |
480 | tcp_chr_disconnect_locked(chr); | |
481 | qemu_mutex_unlock(&chr->chr_write_lock); | |
482 | } | |
483 | ||
d24ca4b8 MAL |
484 | static gboolean tcp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque) |
485 | { | |
486 | Chardev *chr = CHARDEV(opaque); | |
487 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
488 | uint8_t buf[CHR_READ_BUF_LEN]; | |
489 | int len, size; | |
490 | ||
32423cca DB |
491 | if ((s->state != TCP_CHARDEV_STATE_CONNECTED) || |
492 | s->max_size <= 0) { | |
d24ca4b8 MAL |
493 | return TRUE; |
494 | } | |
495 | len = sizeof(buf); | |
496 | if (len > s->max_size) { | |
497 | len = s->max_size; | |
498 | } | |
499 | size = tcp_chr_recv(chr, (void *)buf, len); | |
c863fdec | 500 | if (size == 0 || (size == -1 && errno != EAGAIN)) { |
d24ca4b8 MAL |
501 | /* connection closed */ |
502 | tcp_chr_disconnect(chr); | |
503 | } else if (size > 0) { | |
504 | if (s->do_telnetopt) { | |
505 | tcp_chr_process_IAC_bytes(chr, s, buf, &size); | |
506 | } | |
507 | if (size > 0) { | |
508 | qemu_chr_be_write(chr, buf, size); | |
509 | } | |
510 | } | |
511 | ||
512 | return TRUE; | |
513 | } | |
514 | ||
a8aa6197 KK |
515 | static gboolean tcp_chr_hup(QIOChannel *channel, |
516 | GIOCondition cond, | |
517 | void *opaque) | |
518 | { | |
519 | Chardev *chr = CHARDEV(opaque); | |
520 | tcp_chr_disconnect(chr); | |
521 | return G_SOURCE_REMOVE; | |
522 | } | |
523 | ||
d24ca4b8 MAL |
524 | static int tcp_chr_sync_read(Chardev *chr, const uint8_t *buf, int len) |
525 | { | |
526 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
527 | int size; | |
66626503 | 528 | int saved_errno; |
d24ca4b8 | 529 | |
32423cca | 530 | if (s->state != TCP_CHARDEV_STATE_CONNECTED) { |
d24ca4b8 MAL |
531 | return 0; |
532 | } | |
533 | ||
bcdeb9be | 534 | qio_channel_set_blocking(s->ioc, true, NULL); |
d24ca4b8 | 535 | size = tcp_chr_recv(chr, (void *) buf, len); |
66626503 | 536 | saved_errno = errno; |
4d1d4602 SPB |
537 | if (s->state != TCP_CHARDEV_STATE_DISCONNECTED) { |
538 | qio_channel_set_blocking(s->ioc, false, NULL); | |
539 | } | |
d24ca4b8 MAL |
540 | if (size == 0) { |
541 | /* connection closed */ | |
542 | tcp_chr_disconnect(chr); | |
543 | } | |
544 | ||
66626503 | 545 | errno = saved_errno; |
d24ca4b8 MAL |
546 | return size; |
547 | } | |
548 | ||
4493b6a5 | 549 | static char *qemu_chr_compute_filename(SocketChardev *s) |
d24ca4b8 | 550 | { |
4493b6a5 JS |
551 | struct sockaddr_storage *ss = &s->sioc->localAddr; |
552 | struct sockaddr_storage *ps = &s->sioc->remoteAddr; | |
553 | socklen_t ss_len = s->sioc->localAddrLen; | |
554 | socklen_t ps_len = s->sioc->remoteAddrLen; | |
d24ca4b8 MAL |
555 | char shost[NI_MAXHOST], sserv[NI_MAXSERV]; |
556 | char phost[NI_MAXHOST], pserv[NI_MAXSERV]; | |
557 | const char *left = "", *right = ""; | |
558 | ||
559 | switch (ss->ss_family) { | |
d24ca4b8 MAL |
560 | case AF_UNIX: |
561 | return g_strdup_printf("unix:%s%s", | |
562 | ((struct sockaddr_un *)(ss))->sun_path, | |
9d902d51 | 563 | s->is_listen ? ",server=on" : ""); |
d24ca4b8 MAL |
564 | case AF_INET6: |
565 | left = "["; | |
566 | right = "]"; | |
567 | /* fall through */ | |
568 | case AF_INET: | |
569 | getnameinfo((struct sockaddr *) ss, ss_len, shost, sizeof(shost), | |
570 | sserv, sizeof(sserv), NI_NUMERICHOST | NI_NUMERICSERV); | |
571 | getnameinfo((struct sockaddr *) ps, ps_len, phost, sizeof(phost), | |
572 | pserv, sizeof(pserv), NI_NUMERICHOST | NI_NUMERICSERV); | |
573 | return g_strdup_printf("%s:%s%s%s:%s%s <-> %s%s%s:%s", | |
4493b6a5 | 574 | qemu_chr_socket_protocol(s), |
d24ca4b8 | 575 | left, shost, right, sserv, |
9d902d51 | 576 | s->is_listen ? ",server=on" : "", |
d24ca4b8 MAL |
577 | left, phost, right, pserv); |
578 | ||
579 | default: | |
580 | return g_strdup_printf("unknown"); | |
581 | } | |
582 | } | |
583 | ||
dfe9ea20 MAL |
584 | static void update_ioc_handlers(SocketChardev *s) |
585 | { | |
586 | Chardev *chr = CHARDEV(s); | |
587 | ||
32423cca | 588 | if (s->state != TCP_CHARDEV_STATE_CONNECTED) { |
dfe9ea20 MAL |
589 | return; |
590 | } | |
591 | ||
592 | remove_fd_in_watch(chr); | |
593 | chr->gsource = io_add_watch_poll(chr, s->ioc, | |
594 | tcp_chr_read_poll, | |
595 | tcp_chr_read, chr, | |
596 | chr->gcontext); | |
597 | ||
598 | remove_hup_source(s); | |
599 | s->hup_source = qio_channel_create_watch(s->ioc, G_IO_HUP); | |
600 | g_source_set_callback(s->hup_source, (GSourceFunc)tcp_chr_hup, | |
601 | chr, NULL); | |
602 | g_source_attach(s->hup_source, chr->gcontext); | |
603 | } | |
604 | ||
d24ca4b8 MAL |
605 | static void tcp_chr_connect(void *opaque) |
606 | { | |
607 | Chardev *chr = CHARDEV(opaque); | |
608 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
609 | ||
610 | g_free(chr->filename); | |
4493b6a5 | 611 | chr->filename = qemu_chr_compute_filename(s); |
d24ca4b8 | 612 | |
32423cca | 613 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTED); |
dfe9ea20 | 614 | update_ioc_handlers(s); |
63618135 | 615 | qemu_chr_be_event(chr, CHR_EVENT_OPENED); |
d24ca4b8 MAL |
616 | } |
617 | ||
ce1230c0 PX |
618 | static void tcp_chr_telnet_destroy(SocketChardev *s) |
619 | { | |
620 | if (s->telnet_source) { | |
621 | g_source_destroy(s->telnet_source); | |
622 | g_source_unref(s->telnet_source); | |
623 | s->telnet_source = NULL; | |
624 | } | |
625 | } | |
626 | ||
bb86d05f | 627 | static void tcp_chr_update_read_handler(Chardev *chr) |
d24ca4b8 MAL |
628 | { |
629 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
630 | ||
5b774fe5 | 631 | if (s->listener && s->state == TCP_CHARDEV_STATE_DISCONNECTED) { |
3da9de5c PX |
632 | /* |
633 | * It's possible that chardev context is changed in | |
634 | * qemu_chr_be_update_read_handlers(). Reset it for QIO net | |
635 | * listener if there is. | |
636 | */ | |
637 | qio_net_listener_set_client_func_full(s->listener, tcp_chr_accept, | |
638 | chr, NULL, chr->gcontext); | |
639 | } | |
640 | ||
ce1230c0 PX |
641 | if (s->telnet_source) { |
642 | tcp_chr_telnet_init(CHARDEV(s)); | |
643 | } | |
644 | ||
dfe9ea20 | 645 | update_ioc_handlers(s); |
d24ca4b8 MAL |
646 | } |
647 | ||
d24ca4b8 MAL |
648 | static gboolean tcp_chr_telnet_init_io(QIOChannel *ioc, |
649 | GIOCondition cond G_GNUC_UNUSED, | |
650 | gpointer user_data) | |
651 | { | |
ce1230c0 PX |
652 | SocketChardev *s = user_data; |
653 | Chardev *chr = CHARDEV(s); | |
654 | TCPChardevTelnetInit *init = s->telnet_init; | |
d24ca4b8 MAL |
655 | ssize_t ret; |
656 | ||
ce1230c0 PX |
657 | assert(init); |
658 | ||
d24ca4b8 MAL |
659 | ret = qio_channel_write(ioc, init->buf, init->buflen, NULL); |
660 | if (ret < 0) { | |
661 | if (ret == QIO_CHANNEL_ERR_BLOCK) { | |
662 | ret = 0; | |
663 | } else { | |
ce1230c0 | 664 | tcp_chr_disconnect(chr); |
8b2ec54f | 665 | goto end; |
d24ca4b8 MAL |
666 | } |
667 | } | |
668 | init->buflen -= ret; | |
669 | ||
670 | if (init->buflen == 0) { | |
ce1230c0 | 671 | tcp_chr_connect(chr); |
8b2ec54f | 672 | goto end; |
d24ca4b8 MAL |
673 | } |
674 | ||
675 | memmove(init->buf, init->buf + ret, init->buflen); | |
676 | ||
8b2ec54f PX |
677 | return G_SOURCE_CONTINUE; |
678 | ||
679 | end: | |
ce1230c0 PX |
680 | g_free(s->telnet_init); |
681 | s->telnet_init = NULL; | |
682 | g_source_unref(s->telnet_source); | |
683 | s->telnet_source = NULL; | |
8b2ec54f | 684 | return G_SOURCE_REMOVE; |
d24ca4b8 MAL |
685 | } |
686 | ||
687 | static void tcp_chr_telnet_init(Chardev *chr) | |
688 | { | |
689 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
ce1230c0 | 690 | TCPChardevTelnetInit *init; |
d24ca4b8 MAL |
691 | size_t n = 0; |
692 | ||
ce1230c0 PX |
693 | /* Destroy existing task */ |
694 | tcp_chr_telnet_destroy(s); | |
695 | ||
696 | if (s->telnet_init) { | |
697 | /* We are possibly during a handshake already */ | |
698 | goto cont; | |
699 | } | |
700 | ||
701 | s->telnet_init = g_new0(TCPChardevTelnetInit, 1); | |
702 | init = s->telnet_init; | |
703 | ||
d24ca4b8 MAL |
704 | #define IACSET(x, a, b, c) \ |
705 | do { \ | |
706 | x[n++] = a; \ | |
707 | x[n++] = b; \ | |
708 | x[n++] = c; \ | |
709 | } while (0) | |
710 | ||
ae92cbd5 JL |
711 | if (!s->is_tn3270) { |
712 | init->buflen = 12; | |
713 | /* Prep the telnet negotion to put telnet in binary, | |
714 | * no echo, single char mode */ | |
715 | IACSET(init->buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ | |
716 | IACSET(init->buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ | |
717 | IACSET(init->buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ | |
718 | IACSET(init->buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ | |
719 | } else { | |
720 | init->buflen = 21; | |
721 | /* Prep the TN3270 negotion based on RFC1576 */ | |
722 | IACSET(init->buf, 0xff, 0xfd, 0x19); /* IAC DO EOR */ | |
723 | IACSET(init->buf, 0xff, 0xfb, 0x19); /* IAC WILL EOR */ | |
724 | IACSET(init->buf, 0xff, 0xfd, 0x00); /* IAC DO BINARY */ | |
725 | IACSET(init->buf, 0xff, 0xfb, 0x00); /* IAC WILL BINARY */ | |
726 | IACSET(init->buf, 0xff, 0xfd, 0x18); /* IAC DO TERMINAL TYPE */ | |
727 | IACSET(init->buf, 0xff, 0xfa, 0x18); /* IAC SB TERMINAL TYPE */ | |
728 | IACSET(init->buf, 0x01, 0xff, 0xf0); /* SEND IAC SE */ | |
729 | } | |
d24ca4b8 MAL |
730 | |
731 | #undef IACSET | |
732 | ||
ce1230c0 PX |
733 | cont: |
734 | s->telnet_source = qio_channel_add_watch_source(s->ioc, G_IO_OUT, | |
735 | tcp_chr_telnet_init_io, | |
736 | s, NULL, | |
737 | chr->gcontext); | |
d24ca4b8 MAL |
738 | } |
739 | ||
740 | ||
981b06e7 JS |
741 | static void tcp_chr_websock_handshake(QIOTask *task, gpointer user_data) |
742 | { | |
743 | Chardev *chr = user_data; | |
744 | SocketChardev *s = user_data; | |
745 | ||
746 | if (qio_task_propagate_error(task, NULL)) { | |
747 | tcp_chr_disconnect(chr); | |
748 | } else { | |
749 | if (s->do_telnetopt) { | |
750 | tcp_chr_telnet_init(chr); | |
751 | } else { | |
752 | tcp_chr_connect(chr); | |
753 | } | |
754 | } | |
755 | } | |
756 | ||
757 | ||
758 | static void tcp_chr_websock_init(Chardev *chr) | |
759 | { | |
760 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
761 | QIOChannelWebsock *wioc = NULL; | |
762 | gchar *name; | |
763 | ||
764 | wioc = qio_channel_websock_new_server(s->ioc); | |
765 | ||
766 | name = g_strdup_printf("chardev-websocket-server-%s", chr->label); | |
767 | qio_channel_set_name(QIO_CHANNEL(wioc), name); | |
768 | g_free(name); | |
769 | object_unref(OBJECT(s->ioc)); | |
770 | s->ioc = QIO_CHANNEL(wioc); | |
771 | ||
772 | qio_channel_websock_handshake(wioc, tcp_chr_websock_handshake, chr, NULL); | |
773 | } | |
774 | ||
775 | ||
d24ca4b8 MAL |
776 | static void tcp_chr_tls_handshake(QIOTask *task, |
777 | gpointer user_data) | |
778 | { | |
779 | Chardev *chr = user_data; | |
780 | SocketChardev *s = user_data; | |
781 | ||
782 | if (qio_task_propagate_error(task, NULL)) { | |
783 | tcp_chr_disconnect(chr); | |
784 | } else { | |
981b06e7 JS |
785 | if (s->is_websock) { |
786 | tcp_chr_websock_init(chr); | |
787 | } else if (s->do_telnetopt) { | |
d24ca4b8 MAL |
788 | tcp_chr_telnet_init(chr); |
789 | } else { | |
790 | tcp_chr_connect(chr); | |
791 | } | |
792 | } | |
793 | } | |
794 | ||
795 | ||
796 | static void tcp_chr_tls_init(Chardev *chr) | |
797 | { | |
798 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
799 | QIOChannelTLS *tioc; | |
d24ca4b8 MAL |
800 | gchar *name; |
801 | ||
802 | if (s->is_listen) { | |
803 | tioc = qio_channel_tls_new_server( | |
804 | s->ioc, s->tls_creds, | |
fd4a5fd4 | 805 | s->tls_authz, |
9261ef5e | 806 | NULL); |
d24ca4b8 MAL |
807 | } else { |
808 | tioc = qio_channel_tls_new_client( | |
809 | s->ioc, s->tls_creds, | |
bd269ebc | 810 | s->addr->u.inet.host, |
9261ef5e | 811 | NULL); |
d24ca4b8 MAL |
812 | } |
813 | if (tioc == NULL) { | |
d24ca4b8 MAL |
814 | tcp_chr_disconnect(chr); |
815 | return; | |
816 | } | |
817 | name = g_strdup_printf("chardev-tls-%s-%s", | |
818 | s->is_listen ? "server" : "client", | |
819 | chr->label); | |
820 | qio_channel_set_name(QIO_CHANNEL(tioc), name); | |
821 | g_free(name); | |
822 | object_unref(OBJECT(s->ioc)); | |
823 | s->ioc = QIO_CHANNEL(tioc); | |
824 | ||
825 | qio_channel_tls_handshake(tioc, | |
826 | tcp_chr_tls_handshake, | |
827 | chr, | |
1939ccda | 828 | NULL, |
05b6cc4a | 829 | chr->gcontext); |
d24ca4b8 MAL |
830 | } |
831 | ||
832 | ||
833 | static void tcp_chr_set_client_ioc_name(Chardev *chr, | |
834 | QIOChannelSocket *sioc) | |
835 | { | |
836 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
837 | char *name; | |
838 | name = g_strdup_printf("chardev-tcp-%s-%s", | |
839 | s->is_listen ? "server" : "client", | |
840 | chr->label); | |
841 | qio_channel_set_name(QIO_CHANNEL(sioc), name); | |
842 | g_free(name); | |
843 | ||
844 | } | |
845 | ||
846 | static int tcp_chr_new_client(Chardev *chr, QIOChannelSocket *sioc) | |
847 | { | |
848 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
849 | ||
32423cca | 850 | if (s->state != TCP_CHARDEV_STATE_CONNECTING) { |
d24ca4b8 MAL |
851 | return -1; |
852 | } | |
853 | ||
854 | s->ioc = QIO_CHANNEL(sioc); | |
855 | object_ref(OBJECT(sioc)); | |
856 | s->sioc = sioc; | |
857 | object_ref(OBJECT(sioc)); | |
858 | ||
859 | qio_channel_set_blocking(s->ioc, false, NULL); | |
860 | ||
861 | if (s->do_nodelay) { | |
862 | qio_channel_set_delay(s->ioc, false); | |
863 | } | |
194b7f0d | 864 | if (s->listener) { |
3da9de5c PX |
865 | qio_net_listener_set_client_func_full(s->listener, NULL, NULL, |
866 | NULL, chr->gcontext); | |
d24ca4b8 MAL |
867 | } |
868 | ||
869 | if (s->tls_creds) { | |
870 | tcp_chr_tls_init(chr); | |
981b06e7 JS |
871 | } else if (s->is_websock) { |
872 | tcp_chr_websock_init(chr); | |
873 | } else if (s->do_telnetopt) { | |
874 | tcp_chr_telnet_init(chr); | |
d24ca4b8 | 875 | } else { |
981b06e7 | 876 | tcp_chr_connect(chr); |
d24ca4b8 MAL |
877 | } |
878 | ||
879 | return 0; | |
880 | } | |
881 | ||
882 | ||
883 | static int tcp_chr_add_client(Chardev *chr, int fd) | |
884 | { | |
885 | int ret; | |
886 | QIOChannelSocket *sioc; | |
32423cca DB |
887 | SocketChardev *s = SOCKET_CHARDEV(chr); |
888 | ||
889 | if (s->state != TCP_CHARDEV_STATE_DISCONNECTED) { | |
890 | return -1; | |
891 | } | |
d24ca4b8 MAL |
892 | |
893 | sioc = qio_channel_socket_new_fd(fd, NULL); | |
894 | if (!sioc) { | |
895 | return -1; | |
896 | } | |
32423cca | 897 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
d24ca4b8 | 898 | tcp_chr_set_client_ioc_name(chr, sioc); |
ebae6477 MAL |
899 | if (s->registered_yank) { |
900 | yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), | |
1a92d6d5 | 901 | char_socket_yank_iochannel, |
ebae6477 MAL |
902 | QIO_CHANNEL(sioc)); |
903 | } | |
d24ca4b8 MAL |
904 | ret = tcp_chr_new_client(chr, sioc); |
905 | object_unref(OBJECT(sioc)); | |
906 | return ret; | |
907 | } | |
908 | ||
194b7f0d DB |
909 | static void tcp_chr_accept(QIONetListener *listener, |
910 | QIOChannelSocket *cioc, | |
911 | void *opaque) | |
d24ca4b8 MAL |
912 | { |
913 | Chardev *chr = CHARDEV(opaque); | |
32423cca | 914 | SocketChardev *s = SOCKET_CHARDEV(chr); |
d24ca4b8 | 915 | |
32423cca | 916 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
194b7f0d | 917 | tcp_chr_set_client_ioc_name(chr, cioc); |
ebae6477 MAL |
918 | if (s->registered_yank) { |
919 | yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), | |
1a92d6d5 | 920 | char_socket_yank_iochannel, |
ebae6477 MAL |
921 | QIO_CHANNEL(cioc)); |
922 | } | |
194b7f0d | 923 | tcp_chr_new_client(chr, cioc); |
d24ca4b8 MAL |
924 | } |
925 | ||
efae0b92 DB |
926 | |
927 | static int tcp_chr_connect_client_sync(Chardev *chr, Error **errp) | |
928 | { | |
929 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
930 | QIOChannelSocket *sioc = qio_channel_socket_new(); | |
32423cca | 931 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
efae0b92 DB |
932 | tcp_chr_set_client_ioc_name(chr, sioc); |
933 | if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) { | |
32423cca | 934 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); |
efae0b92 DB |
935 | object_unref(OBJECT(sioc)); |
936 | return -1; | |
937 | } | |
ebae6477 MAL |
938 | if (s->registered_yank) { |
939 | yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), | |
1a92d6d5 | 940 | char_socket_yank_iochannel, |
ebae6477 MAL |
941 | QIO_CHANNEL(sioc)); |
942 | } | |
efae0b92 DB |
943 | tcp_chr_new_client(chr, sioc); |
944 | object_unref(OBJECT(sioc)); | |
945 | return 0; | |
946 | } | |
947 | ||
948 | ||
949 | static void tcp_chr_accept_server_sync(Chardev *chr) | |
d24ca4b8 MAL |
950 | { |
951 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
952 | QIOChannelSocket *sioc; | |
efae0b92 DB |
953 | info_report("QEMU waiting for connection on: %s", |
954 | chr->filename); | |
32423cca | 955 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
efae0b92 DB |
956 | sioc = qio_net_listener_wait_client(s->listener); |
957 | tcp_chr_set_client_ioc_name(chr, sioc); | |
ebae6477 MAL |
958 | if (s->registered_yank) { |
959 | yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), | |
1a92d6d5 | 960 | char_socket_yank_iochannel, |
ebae6477 MAL |
961 | QIO_CHANNEL(sioc)); |
962 | } | |
efae0b92 DB |
963 | tcp_chr_new_client(chr, sioc); |
964 | object_unref(OBJECT(sioc)); | |
965 | } | |
966 | ||
d24ca4b8 | 967 | |
efae0b92 DB |
968 | static int tcp_chr_wait_connected(Chardev *chr, Error **errp) |
969 | { | |
970 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
d1885e54 DB |
971 | const char *opts[] = { "telnet", "tn3270", "websock", "tls-creds" }; |
972 | bool optset[] = { s->is_telnet, s->is_tn3270, s->is_websock, s->tls_creds }; | |
973 | size_t i; | |
974 | ||
975 | QEMU_BUILD_BUG_ON(G_N_ELEMENTS(opts) != G_N_ELEMENTS(optset)); | |
976 | for (i = 0; i < G_N_ELEMENTS(opts); i++) { | |
977 | if (optset[i]) { | |
978 | error_setg(errp, | |
979 | "'%s' option is incompatible with waiting for " | |
980 | "connection completion", opts[i]); | |
981 | return -1; | |
982 | } | |
983 | } | |
984 | ||
4b47373a DB |
985 | tcp_chr_reconn_timer_cancel(s); |
986 | ||
987 | /* | |
988 | * We expect states to be as follows: | |
989 | * | |
990 | * - server | |
991 | * - wait -> CONNECTED | |
992 | * - nowait -> DISCONNECTED | |
993 | * - client | |
994 | * - reconnect == 0 -> CONNECTED | |
995 | * - reconnect != 0 -> CONNECTING | |
996 | * | |
997 | */ | |
998 | if (s->state == TCP_CHARDEV_STATE_CONNECTING) { | |
999 | if (!s->connect_task) { | |
1000 | error_setg(errp, | |
1001 | "Unexpected 'connecting' state without connect task " | |
1002 | "while waiting for connection completion"); | |
1003 | return -1; | |
1004 | } | |
1005 | /* | |
1006 | * tcp_chr_wait_connected should only ever be run from the | |
1007 | * main loop thread associated with chr->gcontext, otherwise | |
1008 | * qio_task_wait_thread has a dangerous race condition with | |
1009 | * free'ing of the s->connect_task object. | |
1010 | * | |
1011 | * Acquiring the main context doesn't 100% prove we're in | |
1012 | * the main loop thread, but it does at least guarantee | |
1013 | * that the main loop won't be executed by another thread | |
1014 | * avoiding the race condition with the task idle callback. | |
1015 | */ | |
1016 | g_main_context_acquire(chr->gcontext); | |
1017 | qio_task_wait_thread(s->connect_task); | |
1018 | g_main_context_release(chr->gcontext); | |
1019 | ||
1020 | /* | |
1021 | * The completion callback (qemu_chr_socket_connected) for | |
1022 | * s->connect_task should have set this to NULL by the time | |
1023 | * qio_task_wait_thread has returned. | |
1024 | */ | |
1025 | assert(!s->connect_task); | |
1026 | ||
1027 | /* | |
1028 | * NB we are *not* guaranteed to have "s->state == ..CONNECTED" | |
1029 | * at this point as this first connect may be failed, so | |
1030 | * allow the next loop to run regardless. | |
1031 | */ | |
1032 | } | |
1033 | ||
1034 | while (s->state != TCP_CHARDEV_STATE_CONNECTED) { | |
d24ca4b8 | 1035 | if (s->is_listen) { |
efae0b92 | 1036 | tcp_chr_accept_server_sync(chr); |
d24ca4b8 | 1037 | } else { |
25d93b6a DB |
1038 | Error *err = NULL; |
1039 | if (tcp_chr_connect_client_sync(chr, &err) < 0) { | |
1040 | if (s->reconnect_time) { | |
1041 | error_free(err); | |
1042 | g_usleep(s->reconnect_time * 1000ULL * 1000ULL); | |
1043 | } else { | |
1044 | error_propagate(errp, err); | |
1045 | return -1; | |
1046 | } | |
d24ca4b8 | 1047 | } |
d24ca4b8 MAL |
1048 | } |
1049 | } | |
1050 | ||
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | static void char_socket_finalize(Object *obj) | |
1055 | { | |
1056 | Chardev *chr = CHARDEV(obj); | |
1057 | SocketChardev *s = SOCKET_CHARDEV(obj); | |
1058 | ||
1059 | tcp_chr_free_connection(chr); | |
2c716ba1 | 1060 | tcp_chr_reconn_timer_cancel(s); |
d24ca4b8 | 1061 | qapi_free_SocketAddress(s->addr); |
ce1230c0 PX |
1062 | tcp_chr_telnet_destroy(s); |
1063 | g_free(s->telnet_init); | |
194b7f0d | 1064 | if (s->listener) { |
3da9de5c PX |
1065 | qio_net_listener_set_client_func_full(s->listener, NULL, NULL, |
1066 | NULL, chr->gcontext); | |
194b7f0d | 1067 | object_unref(OBJECT(s->listener)); |
d24ca4b8 MAL |
1068 | } |
1069 | if (s->tls_creds) { | |
1070 | object_unref(OBJECT(s->tls_creds)); | |
1071 | } | |
fd4a5fd4 | 1072 | g_free(s->tls_authz); |
8ee44806 | 1073 | if (s->registered_yank) { |
feb774ca LS |
1074 | /* |
1075 | * In the chardev-change special-case, we shouldn't unregister the yank | |
1076 | * instance, as it still may be needed. | |
1077 | */ | |
1078 | if (!chr->handover_yank_instance) { | |
1079 | yank_unregister_instance(CHARDEV_YANK_INSTANCE(chr->label)); | |
1080 | } | |
8ee44806 | 1081 | } |
d24ca4b8 MAL |
1082 | |
1083 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); | |
1084 | } | |
1085 | ||
1086 | static void qemu_chr_socket_connected(QIOTask *task, void *opaque) | |
1087 | { | |
1088 | QIOChannelSocket *sioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task)); | |
1089 | Chardev *chr = CHARDEV(opaque); | |
1090 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
1091 | Error *err = NULL; | |
1092 | ||
4b47373a DB |
1093 | s->connect_task = NULL; |
1094 | ||
d24ca4b8 | 1095 | if (qio_task_propagate_error(task, &err)) { |
32423cca | 1096 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); |
ebae6477 MAL |
1097 | if (s->registered_yank) { |
1098 | yank_unregister_function(CHARDEV_YANK_INSTANCE(chr->label), | |
1a92d6d5 | 1099 | char_socket_yank_iochannel, |
ebae6477 MAL |
1100 | QIO_CHANNEL(sioc)); |
1101 | } | |
d24ca4b8 | 1102 | check_report_connect_error(chr, err); |
d24ca4b8 MAL |
1103 | goto cleanup; |
1104 | } | |
1105 | ||
1106 | s->connect_err_reported = false; | |
1107 | tcp_chr_new_client(chr, sioc); | |
1108 | ||
1109 | cleanup: | |
1110 | object_unref(OBJECT(sioc)); | |
1111 | } | |
1112 | ||
4b47373a DB |
1113 | |
1114 | static void tcp_chr_connect_client_task(QIOTask *task, | |
1115 | gpointer opaque) | |
1116 | { | |
1117 | QIOChannelSocket *ioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task)); | |
1118 | SocketAddress *addr = opaque; | |
1119 | Error *err = NULL; | |
1120 | ||
1121 | qio_channel_socket_connect_sync(ioc, addr, &err); | |
1122 | ||
1123 | qio_task_set_error(task, err); | |
1124 | } | |
1125 | ||
1126 | ||
efae0b92 | 1127 | static void tcp_chr_connect_client_async(Chardev *chr) |
3e7d4d20 PX |
1128 | { |
1129 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
1130 | QIOChannelSocket *sioc; | |
1131 | ||
32423cca | 1132 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
3e7d4d20 PX |
1133 | sioc = qio_channel_socket_new(); |
1134 | tcp_chr_set_client_ioc_name(chr, sioc); | |
ebae6477 MAL |
1135 | if (s->registered_yank) { |
1136 | yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), | |
1a92d6d5 | 1137 | char_socket_yank_iochannel, |
ebae6477 MAL |
1138 | QIO_CHANNEL(sioc)); |
1139 | } | |
4b47373a DB |
1140 | /* |
1141 | * Normally code would use the qio_channel_socket_connect_async | |
1142 | * method which uses a QIOTask + qio_task_set_error internally | |
1143 | * to avoid blocking. The tcp_chr_wait_connected method, however, | |
1144 | * needs a way to synchronize with completion of the background | |
1145 | * connect task which can't be done with the QIOChannelSocket | |
1146 | * async APIs. Thus we must use QIOTask directly to implement | |
1147 | * the non-blocking concept locally. | |
1148 | */ | |
1149 | s->connect_task = qio_task_new(OBJECT(sioc), | |
1150 | qemu_chr_socket_connected, | |
68066019 MAL |
1151 | object_ref(OBJECT(chr)), |
1152 | (GDestroyNotify)object_unref); | |
4b47373a DB |
1153 | qio_task_run_in_thread(s->connect_task, |
1154 | tcp_chr_connect_client_task, | |
1155 | s->addr, | |
1156 | NULL, | |
1157 | chr->gcontext); | |
3e7d4d20 PX |
1158 | } |
1159 | ||
d24ca4b8 MAL |
1160 | static gboolean socket_reconnect_timeout(gpointer opaque) |
1161 | { | |
1162 | Chardev *chr = CHARDEV(opaque); | |
1163 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
d24ca4b8 | 1164 | |
78d01598 | 1165 | qemu_mutex_lock(&chr->chr_write_lock); |
2c716ba1 PX |
1166 | g_source_unref(s->reconnect_timer); |
1167 | s->reconnect_timer = NULL; | |
78d01598 | 1168 | qemu_mutex_unlock(&chr->chr_write_lock); |
d24ca4b8 MAL |
1169 | |
1170 | if (chr->be_open) { | |
1171 | return false; | |
1172 | } | |
1173 | ||
efae0b92 | 1174 | tcp_chr_connect_client_async(chr); |
d24ca4b8 MAL |
1175 | |
1176 | return false; | |
1177 | } | |
1178 | ||
1645984b | 1179 | |
b5e18e51 DB |
1180 | static int qmp_chardev_open_socket_server(Chardev *chr, |
1181 | bool is_telnet, | |
1182 | bool is_waitconnect, | |
1183 | Error **errp) | |
1184 | { | |
1185 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
1186 | char *name; | |
1187 | if (is_telnet) { | |
1188 | s->do_telnetopt = 1; | |
1189 | } | |
1190 | s->listener = qio_net_listener_new(); | |
1191 | ||
1192 | name = g_strdup_printf("chardev-tcp-listener-%s", chr->label); | |
1193 | qio_net_listener_set_name(s->listener, name); | |
1194 | g_free(name); | |
1195 | ||
1b87751f MAL |
1196 | if (s->addr->type == SOCKET_ADDRESS_TYPE_FD && !*s->addr->u.fd.str) { |
1197 | goto skip_listen; | |
1198 | } | |
1199 | ||
fc8135c6 | 1200 | if (qio_net_listener_open_sync(s->listener, s->addr, 1, errp) < 0) { |
b5e18e51 DB |
1201 | object_unref(OBJECT(s->listener)); |
1202 | s->listener = NULL; | |
1203 | return -1; | |
1204 | } | |
1205 | ||
1206 | qapi_free_SocketAddress(s->addr); | |
1207 | s->addr = socket_local_address(s->listener->sioc[0]->fd, errp); | |
1b87751f MAL |
1208 | |
1209 | skip_listen: | |
b5e18e51 DB |
1210 | update_disconnected_filename(s); |
1211 | ||
1212 | if (is_waitconnect) { | |
1213 | tcp_chr_accept_server_sync(chr); | |
1214 | } else { | |
1215 | qio_net_listener_set_client_func_full(s->listener, | |
1216 | tcp_chr_accept, | |
1217 | chr, NULL, | |
1218 | chr->gcontext); | |
1219 | } | |
1220 | ||
1221 | return 0; | |
1222 | } | |
1223 | ||
1224 | ||
1225 | static int qmp_chardev_open_socket_client(Chardev *chr, | |
1226 | int64_t reconnect, | |
1227 | Error **errp) | |
1228 | { | |
1229 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
1230 | ||
1231 | if (reconnect > 0) { | |
1232 | s->reconnect_time = reconnect; | |
1233 | tcp_chr_connect_client_async(chr); | |
1234 | return 0; | |
1235 | } else { | |
1236 | return tcp_chr_connect_client_sync(chr, errp); | |
1237 | } | |
1238 | } | |
1239 | ||
1240 | ||
1645984b DB |
1241 | static bool qmp_chardev_validate_socket(ChardevSocket *sock, |
1242 | SocketAddress *addr, | |
1243 | Error **errp) | |
1244 | { | |
1245 | /* Validate any options which have a dependency on address type */ | |
1246 | switch (addr->type) { | |
1247 | case SOCKET_ADDRESS_TYPE_FD: | |
1248 | if (sock->has_reconnect) { | |
1249 | error_setg(errp, | |
1250 | "'reconnect' option is incompatible with " | |
1251 | "'fd' address type"); | |
1252 | return false; | |
1253 | } | |
1254 | if (sock->has_tls_creds && | |
1255 | !(sock->has_server && sock->server)) { | |
1256 | error_setg(errp, | |
1257 | "'tls_creds' option is incompatible with " | |
1258 | "'fd' address type as client"); | |
1259 | return false; | |
1260 | } | |
1261 | break; | |
1262 | ||
1263 | case SOCKET_ADDRESS_TYPE_UNIX: | |
1264 | if (sock->has_tls_creds) { | |
1265 | error_setg(errp, | |
1266 | "'tls_creds' option is incompatible with " | |
1267 | "'unix' address type"); | |
1268 | return false; | |
1269 | } | |
1270 | break; | |
1271 | ||
1272 | case SOCKET_ADDRESS_TYPE_INET: | |
1273 | break; | |
1274 | ||
1275 | case SOCKET_ADDRESS_TYPE_VSOCK: | |
1276 | if (sock->has_tls_creds) { | |
1277 | error_setg(errp, | |
1278 | "'tls_creds' option is incompatible with " | |
1279 | "'vsock' address type"); | |
1280 | return false; | |
1281 | } | |
1282 | ||
1283 | default: | |
1284 | break; | |
1285 | } | |
1286 | ||
fd4a5fd4 DB |
1287 | if (sock->has_tls_authz && !sock->has_tls_creds) { |
1288 | error_setg(errp, "'tls_authz' option requires 'tls_creds' option"); | |
1289 | return false; | |
1290 | } | |
1291 | ||
1645984b | 1292 | /* Validate any options which have a dependancy on client vs server */ |
4a0582f6 DB |
1293 | if (!sock->has_server || sock->server) { |
1294 | if (sock->has_reconnect) { | |
1295 | error_setg(errp, | |
1296 | "'reconnect' option is incompatible with " | |
1297 | "socket in server listen mode"); | |
1298 | return false; | |
1299 | } | |
1300 | } else { | |
1645984b DB |
1301 | if (sock->has_websocket && sock->websocket) { |
1302 | error_setg(errp, "%s", "Websocket client is not implemented"); | |
1303 | return false; | |
1304 | } | |
767abe7f | 1305 | if (sock->has_wait) { |
24e13a4d DB |
1306 | error_setg(errp, "%s", |
1307 | "'wait' option is incompatible with " | |
1308 | "socket in client connect mode"); | |
1309 | return false; | |
767abe7f | 1310 | } |
1645984b DB |
1311 | } |
1312 | ||
1313 | return true; | |
1314 | } | |
1315 | ||
1316 | ||
d24ca4b8 MAL |
1317 | static void qmp_chardev_open_socket(Chardev *chr, |
1318 | ChardevBackend *backend, | |
1319 | bool *be_opened, | |
1320 | Error **errp) | |
1321 | { | |
1322 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
1323 | ChardevSocket *sock = backend->u.socket.data; | |
d24ca4b8 MAL |
1324 | bool do_nodelay = sock->has_nodelay ? sock->nodelay : false; |
1325 | bool is_listen = sock->has_server ? sock->server : true; | |
1326 | bool is_telnet = sock->has_telnet ? sock->telnet : false; | |
ae92cbd5 | 1327 | bool is_tn3270 = sock->has_tn3270 ? sock->tn3270 : false; |
d24ca4b8 | 1328 | bool is_waitconnect = sock->has_wait ? sock->wait : false; |
981b06e7 | 1329 | bool is_websock = sock->has_websocket ? sock->websocket : false; |
d24ca4b8 | 1330 | int64_t reconnect = sock->has_reconnect ? sock->reconnect : 0; |
bd269ebc | 1331 | SocketAddress *addr; |
d24ca4b8 | 1332 | |
d24ca4b8 MAL |
1333 | s->is_listen = is_listen; |
1334 | s->is_telnet = is_telnet; | |
ae92cbd5 | 1335 | s->is_tn3270 = is_tn3270; |
981b06e7 | 1336 | s->is_websock = is_websock; |
d24ca4b8 MAL |
1337 | s->do_nodelay = do_nodelay; |
1338 | if (sock->tls_creds) { | |
1339 | Object *creds; | |
1340 | creds = object_resolve_path_component( | |
1341 | object_get_objects_root(), sock->tls_creds); | |
1342 | if (!creds) { | |
1343 | error_setg(errp, "No TLS credentials with id '%s'", | |
1344 | sock->tls_creds); | |
e154fd79 | 1345 | return; |
d24ca4b8 MAL |
1346 | } |
1347 | s->tls_creds = (QCryptoTLSCreds *) | |
1348 | object_dynamic_cast(creds, | |
1349 | TYPE_QCRYPTO_TLS_CREDS); | |
1350 | if (!s->tls_creds) { | |
1351 | error_setg(errp, "Object with id '%s' is not TLS credentials", | |
1352 | sock->tls_creds); | |
e154fd79 | 1353 | return; |
d24ca4b8 MAL |
1354 | } |
1355 | object_ref(OBJECT(s->tls_creds)); | |
8612df2e PMD |
1356 | if (!qcrypto_tls_creds_check_endpoint(s->tls_creds, |
1357 | is_listen | |
1358 | ? QCRYPTO_TLS_CREDS_ENDPOINT_SERVER | |
1359 | : QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT, | |
1360 | errp)) { | |
1361 | return; | |
d24ca4b8 MAL |
1362 | } |
1363 | } | |
fd4a5fd4 | 1364 | s->tls_authz = g_strdup(sock->tls_authz); |
d24ca4b8 | 1365 | |
bd269ebc | 1366 | s->addr = addr = socket_address_flatten(sock->addr); |
d24ca4b8 | 1367 | |
1645984b | 1368 | if (!qmp_chardev_validate_socket(sock, addr, errp)) { |
e154fd79 | 1369 | return; |
4591bd46 | 1370 | } |
1645984b | 1371 | |
d24ca4b8 | 1372 | qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_RECONNECTABLE); |
120fa5e0 | 1373 | #ifndef _WIN32 |
ca0b64e5 | 1374 | /* TODO SOCKET_ADDRESS_FD where fd has AF_UNIX */ |
bd269ebc | 1375 | if (addr->type == SOCKET_ADDRESS_TYPE_UNIX) { |
d24ca4b8 MAL |
1376 | qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS); |
1377 | } | |
120fa5e0 | 1378 | #endif |
d24ca4b8 | 1379 | |
feb774ca LS |
1380 | /* |
1381 | * In the chardev-change special-case, we shouldn't register a new yank | |
1382 | * instance, as there already may be one. | |
1383 | */ | |
1384 | if (!chr->handover_yank_instance) { | |
1385 | if (!yank_register_instance(CHARDEV_YANK_INSTANCE(chr->label), errp)) { | |
1386 | return; | |
1387 | } | |
8ee44806 LS |
1388 | } |
1389 | s->registered_yank = true; | |
1390 | ||
d24ca4b8 MAL |
1391 | /* be isn't opened until we get a connection */ |
1392 | *be_opened = false; | |
1393 | ||
bbcde969 | 1394 | update_disconnected_filename(s); |
d24ca4b8 | 1395 | |
b5e18e51 DB |
1396 | if (s->is_listen) { |
1397 | if (qmp_chardev_open_socket_server(chr, is_telnet || is_tn3270, | |
1398 | is_waitconnect, errp) < 0) { | |
1399 | return; | |
d24ca4b8 | 1400 | } |
5573f98f | 1401 | } else { |
b5e18e51 | 1402 | if (qmp_chardev_open_socket_client(chr, reconnect, errp) < 0) { |
e154fd79 | 1403 | return; |
d24ca4b8 MAL |
1404 | } |
1405 | } | |
d24ca4b8 MAL |
1406 | } |
1407 | ||
1408 | static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend, | |
1409 | Error **errp) | |
1410 | { | |
d24ca4b8 MAL |
1411 | const char *path = qemu_opt_get(opts, "path"); |
1412 | const char *host = qemu_opt_get(opts, "host"); | |
1413 | const char *port = qemu_opt_get(opts, "port"); | |
0935700f | 1414 | const char *fd = qemu_opt_get(opts, "fd"); |
8acefc79 | 1415 | #ifdef CONFIG_LINUX |
776b97d3 XZ |
1416 | bool tight = qemu_opt_get_bool(opts, "tight", true); |
1417 | bool abstract = qemu_opt_get_bool(opts, "abstract", false); | |
8acefc79 | 1418 | #endif |
dfd100f2 | 1419 | SocketAddressLegacy *addr; |
d24ca4b8 MAL |
1420 | ChardevSocket *sock; |
1421 | ||
1b87751f | 1422 | if ((!!path + !!fd + !!host) > 1) { |
9bb4060c | 1423 | error_setg(errp, |
1b87751f | 1424 | "None or one of 'path', 'fd' or 'host' option required."); |
9bb4060c DB |
1425 | return; |
1426 | } | |
1427 | ||
1645984b DB |
1428 | if (host && !port) { |
1429 | error_setg(errp, "chardev: socket: no port given"); | |
1430 | return; | |
d24ca4b8 MAL |
1431 | } |
1432 | ||
1645984b | 1433 | backend->type = CHARDEV_BACKEND_KIND_SOCKET; |
d24ca4b8 MAL |
1434 | sock = backend->u.socket.data = g_new0(ChardevSocket, 1); |
1435 | qemu_chr_parse_common(opts, qapi_ChardevSocket_base(sock)); | |
1436 | ||
a9b1315f PB |
1437 | if (qemu_opt_get(opts, "delay") && qemu_opt_get(opts, "nodelay")) { |
1438 | error_setg(errp, "'delay' and 'nodelay' are mutually exclusive"); | |
1439 | return; | |
1440 | } | |
1441 | sock->has_nodelay = | |
1442 | qemu_opt_get(opts, "delay") || | |
1443 | qemu_opt_get(opts, "nodelay"); | |
1444 | sock->nodelay = | |
1445 | !qemu_opt_get_bool(opts, "delay", true) || | |
1446 | qemu_opt_get_bool(opts, "nodelay", false); | |
1447 | ||
5981c3a2 DB |
1448 | /* |
1449 | * We have different default to QMP for 'server', hence | |
1450 | * we can't just check for existence of 'server' | |
1451 | */ | |
d24ca4b8 | 1452 | sock->has_server = true; |
5981c3a2 DB |
1453 | sock->server = qemu_opt_get_bool(opts, "server", false); |
1454 | sock->has_telnet = qemu_opt_get(opts, "telnet"); | |
1455 | sock->telnet = qemu_opt_get_bool(opts, "telnet", false); | |
1456 | sock->has_tn3270 = qemu_opt_get(opts, "tn3270"); | |
1457 | sock->tn3270 = qemu_opt_get_bool(opts, "tn3270", false); | |
1458 | sock->has_websocket = qemu_opt_get(opts, "websocket"); | |
1459 | sock->websocket = qemu_opt_get_bool(opts, "websocket", false); | |
767abe7f DB |
1460 | /* |
1461 | * We have different default to QMP for 'wait' when 'server' | |
1462 | * is set, hence we can't just check for existence of 'wait' | |
1463 | */ | |
5981c3a2 DB |
1464 | sock->has_wait = qemu_opt_find(opts, "wait") || sock->server; |
1465 | sock->wait = qemu_opt_get_bool(opts, "wait", true); | |
3b023756 | 1466 | sock->has_reconnect = qemu_opt_find(opts, "reconnect"); |
5981c3a2 DB |
1467 | sock->reconnect = qemu_opt_get_number(opts, "reconnect", 0); |
1468 | sock->has_tls_creds = qemu_opt_get(opts, "tls-creds"); | |
1469 | sock->tls_creds = g_strdup(qemu_opt_get(opts, "tls-creds")); | |
fd4a5fd4 DB |
1470 | sock->has_tls_authz = qemu_opt_get(opts, "tls-authz"); |
1471 | sock->tls_authz = g_strdup(qemu_opt_get(opts, "tls-authz")); | |
d24ca4b8 | 1472 | |
dfd100f2 | 1473 | addr = g_new0(SocketAddressLegacy, 1); |
d24ca4b8 MAL |
1474 | if (path) { |
1475 | UnixSocketAddress *q_unix; | |
935a867c | 1476 | addr->type = SOCKET_ADDRESS_TYPE_UNIX; |
d24ca4b8 MAL |
1477 | q_unix = addr->u.q_unix.data = g_new0(UnixSocketAddress, 1); |
1478 | q_unix->path = g_strdup(path); | |
8acefc79 | 1479 | #ifdef CONFIG_LINUX |
b08cc97d | 1480 | q_unix->has_tight = true; |
776b97d3 | 1481 | q_unix->tight = tight; |
b08cc97d | 1482 | q_unix->has_abstract = true; |
776b97d3 | 1483 | q_unix->abstract = abstract; |
8acefc79 | 1484 | #endif |
9bb4060c | 1485 | } else if (host) { |
935a867c | 1486 | addr->type = SOCKET_ADDRESS_TYPE_INET; |
d24ca4b8 MAL |
1487 | addr->u.inet.data = g_new(InetSocketAddress, 1); |
1488 | *addr->u.inet.data = (InetSocketAddress) { | |
1489 | .host = g_strdup(host), | |
1490 | .port = g_strdup(port), | |
1491 | .has_to = qemu_opt_get(opts, "to"), | |
1492 | .to = qemu_opt_get_number(opts, "to", 0), | |
1493 | .has_ipv4 = qemu_opt_get(opts, "ipv4"), | |
1494 | .ipv4 = qemu_opt_get_bool(opts, "ipv4", 0), | |
1495 | .has_ipv6 = qemu_opt_get(opts, "ipv6"), | |
1496 | .ipv6 = qemu_opt_get_bool(opts, "ipv6", 0), | |
1497 | }; | |
1b87751f | 1498 | } else { |
935a867c | 1499 | addr->type = SOCKET_ADDRESS_TYPE_FD; |
0935700f DB |
1500 | addr->u.fd.data = g_new(String, 1); |
1501 | addr->u.fd.data->str = g_strdup(fd); | |
d24ca4b8 MAL |
1502 | } |
1503 | sock->addr = addr; | |
1504 | } | |
1505 | ||
123676e9 MAL |
1506 | static void |
1507 | char_socket_get_addr(Object *obj, Visitor *v, const char *name, | |
1508 | void *opaque, Error **errp) | |
1509 | { | |
1510 | SocketChardev *s = SOCKET_CHARDEV(obj); | |
1511 | ||
1512 | visit_type_SocketAddress(v, name, &s->addr, errp); | |
1513 | } | |
1514 | ||
da2d19b0 MAL |
1515 | static bool |
1516 | char_socket_get_connected(Object *obj, Error **errp) | |
1517 | { | |
1518 | SocketChardev *s = SOCKET_CHARDEV(obj); | |
1519 | ||
32423cca | 1520 | return s->state == TCP_CHARDEV_STATE_CONNECTED; |
da2d19b0 MAL |
1521 | } |
1522 | ||
d24ca4b8 MAL |
1523 | static void char_socket_class_init(ObjectClass *oc, void *data) |
1524 | { | |
1525 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
1526 | ||
feb774ca LS |
1527 | cc->supports_yank = true; |
1528 | ||
d24ca4b8 MAL |
1529 | cc->parse = qemu_chr_parse_socket; |
1530 | cc->open = qmp_chardev_open_socket; | |
1531 | cc->chr_wait_connected = tcp_chr_wait_connected; | |
1532 | cc->chr_write = tcp_chr_write; | |
1533 | cc->chr_sync_read = tcp_chr_sync_read; | |
1534 | cc->chr_disconnect = tcp_chr_disconnect; | |
1535 | cc->get_msgfds = tcp_get_msgfds; | |
1536 | cc->set_msgfds = tcp_set_msgfds; | |
1537 | cc->chr_add_client = tcp_chr_add_client; | |
1538 | cc->chr_add_watch = tcp_chr_add_watch; | |
1539 | cc->chr_update_read_handler = tcp_chr_update_read_handler; | |
123676e9 MAL |
1540 | |
1541 | object_class_property_add(oc, "addr", "SocketAddress", | |
1542 | char_socket_get_addr, NULL, | |
d2623129 | 1543 | NULL, NULL); |
da2d19b0 MAL |
1544 | |
1545 | object_class_property_add_bool(oc, "connected", char_socket_get_connected, | |
d2623129 | 1546 | NULL); |
d24ca4b8 MAL |
1547 | } |
1548 | ||
1549 | static const TypeInfo char_socket_type_info = { | |
1550 | .name = TYPE_CHARDEV_SOCKET, | |
1551 | .parent = TYPE_CHARDEV, | |
1552 | .instance_size = sizeof(SocketChardev), | |
1553 | .instance_finalize = char_socket_finalize, | |
1554 | .class_init = char_socket_class_init, | |
1555 | }; | |
1556 | ||
1557 | static void register_types(void) | |
1558 | { | |
1559 | type_register_static(&char_socket_type_info); | |
1560 | } | |
1561 | ||
1562 | type_init(register_types); |