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Commit | Line | Data |
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6f97dba0 AL |
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 | */ | |
e688df6b | 24 | |
d38ea87a | 25 | #include "qemu/osdep.h" |
f348b6d1 | 26 | #include "qemu/cutils.h" |
83c9089e | 27 | #include "monitor/monitor.h" |
9c17d615 | 28 | #include "sysemu/sysemu.h" |
213dcb06 | 29 | #include "qemu/config-file.h" |
d49b6836 | 30 | #include "qemu/error-report.h" |
8228e353 | 31 | #include "chardev/char.h" |
c5a415a0 | 32 | #include "qmp-commands.h" |
cfb429cb | 33 | #include "qapi-visit.h" |
e688df6b | 34 | #include "qapi/error.h" |
0dd13589 | 35 | #include "qapi/qmp/qerror.h" |
33577b47 | 36 | #include "sysemu/replay.h" |
517b3d40 | 37 | #include "qemu/help_option.h" |
922a01a0 | 38 | #include "qemu/option.h" |
6f97dba0 | 39 | |
8228e353 | 40 | #include "chardev/char-mux.h" |
df85a78b | 41 | |
6f97dba0 AL |
42 | /***********************************************************/ |
43 | /* character device */ | |
44 | ||
2f5d45a1 MAL |
45 | static Object *get_chardevs_root(void) |
46 | { | |
47 | return container_get(object_get_root(), "/chardevs"); | |
48 | } | |
2970a6c9 | 49 | |
d09c4a47 | 50 | static void chr_be_event(Chardev *s, int event) |
6f97dba0 | 51 | { |
a4afa548 MAL |
52 | CharBackend *be = s->be; |
53 | ||
d09c4a47 MAL |
54 | if (!be || !be->chr_event) { |
55 | return; | |
56 | } | |
57 | ||
58 | be->chr_event(be->opaque, event); | |
59 | } | |
60 | ||
61 | void qemu_chr_be_event(Chardev *s, int event) | |
62 | { | |
73cdf3f2 AG |
63 | /* Keep track if the char device is open */ |
64 | switch (event) { | |
65 | case CHR_EVENT_OPENED: | |
16665b94 | 66 | s->be_open = 1; |
73cdf3f2 AG |
67 | break; |
68 | case CHR_EVENT_CLOSED: | |
16665b94 | 69 | s->be_open = 0; |
73cdf3f2 AG |
70 | break; |
71 | } | |
72 | ||
d09c4a47 | 73 | CHARDEV_GET_CLASS(s)->chr_be_event(s, event); |
6f97dba0 AL |
74 | } |
75 | ||
d0d7708b DB |
76 | /* Not reporting errors from writing to logfile, as logs are |
77 | * defined to be "best effort" only */ | |
a9b1ca38 | 78 | static void qemu_chr_write_log(Chardev *s, const uint8_t *buf, size_t len) |
d0d7708b DB |
79 | { |
80 | size_t done = 0; | |
81 | ssize_t ret; | |
82 | ||
83 | if (s->logfd < 0) { | |
84 | return; | |
85 | } | |
86 | ||
87 | while (done < len) { | |
53628efb DB |
88 | retry: |
89 | ret = write(s->logfd, buf + done, len - done); | |
90 | if (ret == -1 && errno == EAGAIN) { | |
91 | g_usleep(100); | |
92 | goto retry; | |
93 | } | |
d0d7708b DB |
94 | |
95 | if (ret <= 0) { | |
96 | return; | |
97 | } | |
98 | done += ret; | |
99 | } | |
100 | } | |
101 | ||
a9b1ca38 MAL |
102 | static int qemu_chr_write_buffer(Chardev *s, |
103 | const uint8_t *buf, int len, | |
104 | int *offset, bool write_all) | |
33577b47 | 105 | { |
777357d7 | 106 | ChardevClass *cc = CHARDEV_GET_CLASS(s); |
33577b47 PD |
107 | int res = 0; |
108 | *offset = 0; | |
109 | ||
110 | qemu_mutex_lock(&s->chr_write_lock); | |
111 | while (*offset < len) { | |
53628efb | 112 | retry: |
777357d7 | 113 | res = cc->chr_write(s, buf + *offset, len - *offset); |
c90e9392 | 114 | if (res < 0 && errno == EAGAIN && write_all) { |
53628efb DB |
115 | g_usleep(100); |
116 | goto retry; | |
117 | } | |
33577b47 PD |
118 | |
119 | if (res <= 0) { | |
120 | break; | |
121 | } | |
122 | ||
123 | *offset += res; | |
c90e9392 MAL |
124 | if (!write_all) { |
125 | break; | |
126 | } | |
33577b47 PD |
127 | } |
128 | if (*offset > 0) { | |
a9b1ca38 | 129 | qemu_chr_write_log(s, buf, *offset); |
33577b47 PD |
130 | } |
131 | qemu_mutex_unlock(&s->chr_write_lock); | |
132 | ||
133 | return res; | |
134 | } | |
135 | ||
4d43a603 | 136 | int qemu_chr_write(Chardev *s, const uint8_t *buf, int len, bool write_all) |
cd18720a | 137 | { |
c90e9392 | 138 | int offset = 0; |
33577b47 | 139 | int res; |
cd18720a | 140 | |
5ebd6703 | 141 | if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_PLAY) { |
33577b47 PD |
142 | replay_char_write_event_load(&res, &offset); |
143 | assert(offset <= len); | |
a9b1ca38 | 144 | qemu_chr_write_buffer(s, buf, offset, &offset, true); |
33577b47 PD |
145 | return res; |
146 | } | |
cd18720a | 147 | |
a9b1ca38 | 148 | res = qemu_chr_write_buffer(s, buf, len, &offset, write_all); |
cd18720a | 149 | |
5ebd6703 | 150 | if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_RECORD) { |
33577b47 | 151 | replay_char_write_event_save(res, offset); |
cd18720a AL |
152 | } |
153 | ||
9005b2a7 PB |
154 | if (res < 0) { |
155 | return res; | |
156 | } | |
cd18720a AL |
157 | return offset; |
158 | } | |
159 | ||
0ec7b3e7 | 160 | int qemu_chr_be_can_write(Chardev *s) |
6f97dba0 | 161 | { |
a4afa548 MAL |
162 | CharBackend *be = s->be; |
163 | ||
164 | if (!be || !be->chr_can_read) { | |
6f97dba0 | 165 | return 0; |
a4afa548 MAL |
166 | } |
167 | ||
168 | return be->chr_can_read(be->opaque); | |
6f97dba0 AL |
169 | } |
170 | ||
0ec7b3e7 | 171 | void qemu_chr_be_write_impl(Chardev *s, uint8_t *buf, int len) |
6f97dba0 | 172 | { |
a4afa548 MAL |
173 | CharBackend *be = s->be; |
174 | ||
175 | if (be && be->chr_read) { | |
176 | be->chr_read(be->opaque, buf, len); | |
ac310734 | 177 | } |
6f97dba0 AL |
178 | } |
179 | ||
0ec7b3e7 | 180 | void qemu_chr_be_write(Chardev *s, uint8_t *buf, int len) |
33577b47 | 181 | { |
5ebd6703 | 182 | if (qemu_chr_replay(s)) { |
33577b47 PD |
183 | if (replay_mode == REPLAY_MODE_PLAY) { |
184 | return; | |
185 | } | |
186 | replay_chr_be_write(s, buf, len); | |
187 | } else { | |
188 | qemu_chr_be_write_impl(s, buf, len); | |
189 | } | |
190 | } | |
191 | ||
07241c20 PX |
192 | void qemu_chr_be_update_read_handlers(Chardev *s, |
193 | GMainContext *context) | |
194 | { | |
195 | ChardevClass *cc = CHARDEV_GET_CLASS(s); | |
196 | ||
95eeeba6 | 197 | s->gcontext = context; |
07241c20 | 198 | if (cc->chr_update_read_handler) { |
bb86d05f | 199 | cc->chr_update_read_handler(s); |
07241c20 PX |
200 | } |
201 | } | |
202 | ||
0ec7b3e7 | 203 | int qemu_chr_add_client(Chardev *s, int fd) |
13661089 | 204 | { |
777357d7 MAL |
205 | return CHARDEV_GET_CLASS(s)->chr_add_client ? |
206 | CHARDEV_GET_CLASS(s)->chr_add_client(s, fd) : -1; | |
13661089 DB |
207 | } |
208 | ||
777357d7 MAL |
209 | static void qemu_char_open(Chardev *chr, ChardevBackend *backend, |
210 | bool *be_opened, Error **errp) | |
6f97dba0 | 211 | { |
777357d7 MAL |
212 | ChardevClass *cc = CHARDEV_GET_CLASS(chr); |
213 | /* Any ChardevCommon member would work */ | |
214 | ChardevCommon *common = backend ? backend->u.null.data : NULL; | |
215 | ||
216 | if (common && common->has_logfile) { | |
217 | int flags = O_WRONLY | O_CREAT; | |
218 | if (common->has_logappend && | |
219 | common->logappend) { | |
220 | flags |= O_APPEND; | |
221 | } else { | |
222 | flags |= O_TRUNC; | |
223 | } | |
224 | chr->logfd = qemu_open(common->logfile, flags, 0666); | |
225 | if (chr->logfd < 0) { | |
226 | error_setg_errno(errp, errno, | |
227 | "Unable to open logfile %s", | |
228 | common->logfile); | |
229 | return; | |
230 | } | |
231 | } | |
232 | ||
233 | if (cc->open) { | |
234 | cc->open(chr, backend, be_opened, errp); | |
235 | } | |
6f97dba0 AL |
236 | } |
237 | ||
777357d7 | 238 | static void char_init(Object *obj) |
6f97dba0 | 239 | { |
777357d7 | 240 | Chardev *chr = CHARDEV(obj); |
6f97dba0 | 241 | |
777357d7 MAL |
242 | chr->logfd = -1; |
243 | qemu_mutex_init(&chr->chr_write_lock); | |
244 | } | |
245 | ||
eb314a94 MAL |
246 | static int null_chr_write(Chardev *chr, const uint8_t *buf, int len) |
247 | { | |
248 | return len; | |
249 | } | |
250 | ||
251 | static void char_class_init(ObjectClass *oc, void *data) | |
252 | { | |
253 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
254 | ||
255 | cc->chr_write = null_chr_write; | |
d09c4a47 | 256 | cc->chr_be_event = chr_be_event; |
eb314a94 MAL |
257 | } |
258 | ||
777357d7 MAL |
259 | static void char_finalize(Object *obj) |
260 | { | |
261 | Chardev *chr = CHARDEV(obj); | |
262 | ||
263 | if (chr->be) { | |
264 | chr->be->chr = NULL; | |
265 | } | |
266 | g_free(chr->filename); | |
267 | g_free(chr->label); | |
268 | if (chr->logfd != -1) { | |
269 | close(chr->logfd); | |
d0d7708b | 270 | } |
777357d7 MAL |
271 | qemu_mutex_destroy(&chr->chr_write_lock); |
272 | } | |
273 | ||
274 | static const TypeInfo char_type_info = { | |
275 | .name = TYPE_CHARDEV, | |
276 | .parent = TYPE_OBJECT, | |
277 | .instance_size = sizeof(Chardev), | |
278 | .instance_init = char_init, | |
279 | .instance_finalize = char_finalize, | |
280 | .abstract = true, | |
281 | .class_size = sizeof(ChardevClass), | |
eb314a94 | 282 | .class_init = char_class_init, |
777357d7 MAL |
283 | }; |
284 | ||
7b7ab18d MR |
285 | /** |
286 | * Called after processing of default and command-line-specified | |
287 | * chardevs to deliver CHR_EVENT_OPENED events to any FEs attached | |
288 | * to a mux chardev. This is done here to ensure that | |
289 | * output/prompts/banners are only displayed for the FE that has | |
290 | * focus when initial command-line processing/machine init is | |
291 | * completed. | |
292 | * | |
293 | * After this point, any new FE attached to any new or existing | |
294 | * mux will receive CHR_EVENT_OPENED notifications for the BE | |
295 | * immediately. | |
296 | */ | |
6061162e | 297 | static int open_muxes(Object *child, void *opaque) |
7b7ab18d | 298 | { |
6061162e MAL |
299 | if (CHARDEV_IS_MUX(child)) { |
300 | /* send OPENED to all already-attached FEs */ | |
301 | mux_chr_send_all_event(CHARDEV(child), CHR_EVENT_OPENED); | |
302 | /* mark mux as OPENED so any new FEs will immediately receive | |
303 | * OPENED event | |
304 | */ | |
305 | qemu_chr_be_event(CHARDEV(child), CHR_EVENT_OPENED); | |
306 | } | |
7b7ab18d | 307 | |
6061162e MAL |
308 | return 0; |
309 | } | |
7b7ab18d | 310 | |
6061162e MAL |
311 | static void muxes_realize_done(Notifier *notifier, void *unused) |
312 | { | |
7b7ab18d | 313 | muxes_realized = true; |
6061162e | 314 | object_child_foreach(get_chardevs_root(), open_muxes, NULL); |
7b7ab18d MR |
315 | } |
316 | ||
317 | static Notifier muxes_realize_notify = { | |
318 | .notify = muxes_realize_done, | |
319 | }; | |
320 | ||
0ec7b3e7 | 321 | static bool qemu_chr_is_busy(Chardev *s) |
a4afa548 | 322 | { |
777357d7 MAL |
323 | if (CHARDEV_IS_MUX(s)) { |
324 | MuxChardev *d = MUX_CHARDEV(s); | |
a4afa548 MAL |
325 | return d->mux_cnt >= 0; |
326 | } else { | |
327 | return s->be != NULL; | |
328 | } | |
329 | } | |
330 | ||
d24ca4b8 | 331 | int qemu_chr_wait_connected(Chardev *chr, Error **errp) |
6b6723c3 | 332 | { |
777357d7 MAL |
333 | ChardevClass *cc = CHARDEV_GET_CLASS(chr); |
334 | ||
335 | if (cc->chr_wait_connected) { | |
336 | return cc->chr_wait_connected(chr, errp); | |
6b6723c3 MAL |
337 | } |
338 | ||
339 | return 0; | |
340 | } | |
341 | ||
33521634 | 342 | QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename) |
191bc01b | 343 | { |
6ea314d9 | 344 | char host[65], port[33], width[8], height[8]; |
aeb2c47a | 345 | int pos; |
7d31544f | 346 | const char *p; |
191bc01b | 347 | QemuOpts *opts; |
8be7e7e4 | 348 | Error *local_err = NULL; |
191bc01b | 349 | |
8be7e7e4 | 350 | opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err); |
84d18f06 | 351 | if (local_err) { |
33394884 | 352 | error_report_err(local_err); |
191bc01b | 353 | return NULL; |
8be7e7e4 | 354 | } |
191bc01b | 355 | |
7591c5c1 GH |
356 | if (strstart(filename, "mon:", &p)) { |
357 | filename = p; | |
f43e47db | 358 | qemu_opt_set(opts, "mux", "on", &error_abort); |
02c4bdf1 PB |
359 | if (strcmp(filename, "stdio") == 0) { |
360 | /* Monitor is muxed to stdio: do not exit on Ctrl+C by default | |
361 | * but pass it to the guest. Handle this only for compat syntax, | |
362 | * for -chardev syntax we have special option for this. | |
363 | * This is what -nographic did, redirecting+muxing serial+monitor | |
364 | * to stdio causing Ctrl+C to be passed to guest. */ | |
f43e47db | 365 | qemu_opt_set(opts, "signal", "off", &error_abort); |
02c4bdf1 | 366 | } |
7591c5c1 GH |
367 | } |
368 | ||
f0457e8d GH |
369 | if (strcmp(filename, "null") == 0 || |
370 | strcmp(filename, "pty") == 0 || | |
371 | strcmp(filename, "msmouse") == 0 || | |
378af961 | 372 | strcmp(filename, "wctablet") == 0 || |
dc1c21e6 | 373 | strcmp(filename, "braille") == 0 || |
5692399f | 374 | strcmp(filename, "testdev") == 0 || |
f0457e8d | 375 | strcmp(filename, "stdio") == 0) { |
f43e47db | 376 | qemu_opt_set(opts, "backend", filename, &error_abort); |
191bc01b GH |
377 | return opts; |
378 | } | |
6ea314d9 | 379 | if (strstart(filename, "vc", &p)) { |
f43e47db | 380 | qemu_opt_set(opts, "backend", "vc", &error_abort); |
6ea314d9 | 381 | if (*p == ':') { |
49aa4058 | 382 | if (sscanf(p+1, "%7[0-9]x%7[0-9]", width, height) == 2) { |
6ea314d9 | 383 | /* pixels */ |
f43e47db MA |
384 | qemu_opt_set(opts, "width", width, &error_abort); |
385 | qemu_opt_set(opts, "height", height, &error_abort); | |
49aa4058 | 386 | } else if (sscanf(p+1, "%7[0-9]Cx%7[0-9]C", width, height) == 2) { |
6ea314d9 | 387 | /* chars */ |
f43e47db MA |
388 | qemu_opt_set(opts, "cols", width, &error_abort); |
389 | qemu_opt_set(opts, "rows", height, &error_abort); | |
6ea314d9 GH |
390 | } else { |
391 | goto fail; | |
392 | } | |
393 | } | |
394 | return opts; | |
395 | } | |
d6c983cd | 396 | if (strcmp(filename, "con:") == 0) { |
f43e47db | 397 | qemu_opt_set(opts, "backend", "console", &error_abort); |
d6c983cd GH |
398 | return opts; |
399 | } | |
48b76496 | 400 | if (strstart(filename, "COM", NULL)) { |
f43e47db MA |
401 | qemu_opt_set(opts, "backend", "serial", &error_abort); |
402 | qemu_opt_set(opts, "path", filename, &error_abort); | |
48b76496 GH |
403 | return opts; |
404 | } | |
7d31544f | 405 | if (strstart(filename, "file:", &p)) { |
f43e47db MA |
406 | qemu_opt_set(opts, "backend", "file", &error_abort); |
407 | qemu_opt_set(opts, "path", p, &error_abort); | |
7d31544f GH |
408 | return opts; |
409 | } | |
410 | if (strstart(filename, "pipe:", &p)) { | |
f43e47db MA |
411 | qemu_opt_set(opts, "backend", "pipe", &error_abort); |
412 | qemu_opt_set(opts, "path", p, &error_abort); | |
7d31544f GH |
413 | return opts; |
414 | } | |
aeb2c47a | 415 | if (strstart(filename, "tcp:", &p) || |
ae92cbd5 JL |
416 | strstart(filename, "telnet:", &p) || |
417 | strstart(filename, "tn3270:", &p)) { | |
aeb2c47a GH |
418 | if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
419 | host[0] = 0; | |
420 | if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) | |
421 | goto fail; | |
422 | } | |
f43e47db MA |
423 | qemu_opt_set(opts, "backend", "socket", &error_abort); |
424 | qemu_opt_set(opts, "host", host, &error_abort); | |
425 | qemu_opt_set(opts, "port", port, &error_abort); | |
aeb2c47a | 426 | if (p[pos] == ',') { |
dc523cd3 MA |
427 | qemu_opts_do_parse(opts, p+pos+1, NULL, &local_err); |
428 | if (local_err) { | |
429 | error_report_err(local_err); | |
aeb2c47a | 430 | goto fail; |
dc523cd3 | 431 | } |
aeb2c47a | 432 | } |
ae92cbd5 | 433 | if (strstart(filename, "telnet:", &p)) { |
f43e47db | 434 | qemu_opt_set(opts, "telnet", "on", &error_abort); |
ae92cbd5 JL |
435 | } else if (strstart(filename, "tn3270:", &p)) { |
436 | qemu_opt_set(opts, "tn3270", "on", &error_abort); | |
437 | } | |
aeb2c47a GH |
438 | return opts; |
439 | } | |
7e1b35b4 | 440 | if (strstart(filename, "udp:", &p)) { |
f43e47db | 441 | qemu_opt_set(opts, "backend", "udp", &error_abort); |
7e1b35b4 GH |
442 | if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) { |
443 | host[0] = 0; | |
39324ca4 | 444 | if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) { |
7e1b35b4 GH |
445 | goto fail; |
446 | } | |
447 | } | |
f43e47db MA |
448 | qemu_opt_set(opts, "host", host, &error_abort); |
449 | qemu_opt_set(opts, "port", port, &error_abort); | |
7e1b35b4 GH |
450 | if (p[pos] == '@') { |
451 | p += pos + 1; | |
452 | if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { | |
453 | host[0] = 0; | |
454 | if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) { | |
7e1b35b4 GH |
455 | goto fail; |
456 | } | |
457 | } | |
f43e47db MA |
458 | qemu_opt_set(opts, "localaddr", host, &error_abort); |
459 | qemu_opt_set(opts, "localport", port, &error_abort); | |
7e1b35b4 GH |
460 | } |
461 | return opts; | |
462 | } | |
aeb2c47a | 463 | if (strstart(filename, "unix:", &p)) { |
f43e47db | 464 | qemu_opt_set(opts, "backend", "socket", &error_abort); |
dc523cd3 MA |
465 | qemu_opts_do_parse(opts, p, "path", &local_err); |
466 | if (local_err) { | |
467 | error_report_err(local_err); | |
aeb2c47a | 468 | goto fail; |
dc523cd3 | 469 | } |
aeb2c47a GH |
470 | return opts; |
471 | } | |
48b76496 GH |
472 | if (strstart(filename, "/dev/parport", NULL) || |
473 | strstart(filename, "/dev/ppi", NULL)) { | |
73119c28 | 474 | qemu_opt_set(opts, "backend", "parallel", &error_abort); |
f43e47db | 475 | qemu_opt_set(opts, "path", filename, &error_abort); |
48b76496 GH |
476 | return opts; |
477 | } | |
478 | if (strstart(filename, "/dev/", NULL)) { | |
73119c28 | 479 | qemu_opt_set(opts, "backend", "serial", &error_abort); |
f43e47db | 480 | qemu_opt_set(opts, "path", filename, &error_abort); |
48b76496 GH |
481 | return opts; |
482 | } | |
191bc01b | 483 | |
aeb2c47a | 484 | fail: |
191bc01b GH |
485 | qemu_opts_del(opts); |
486 | return NULL; | |
487 | } | |
488 | ||
21a933ea | 489 | void qemu_chr_parse_common(QemuOpts *opts, ChardevCommon *backend) |
d0d7708b DB |
490 | { |
491 | const char *logfile = qemu_opt_get(opts, "logfile"); | |
492 | ||
493 | backend->has_logfile = logfile != NULL; | |
e1f98fe4 | 494 | backend->logfile = g_strdup(logfile); |
d0d7708b DB |
495 | |
496 | backend->has_logappend = true; | |
497 | backend->logappend = qemu_opt_get_bool(opts, "logappend", false); | |
498 | } | |
499 | ||
88cace9f MAL |
500 | static const ChardevClass *char_get_class(const char *driver, Error **errp) |
501 | { | |
502 | ObjectClass *oc; | |
503 | const ChardevClass *cc; | |
504 | char *typename = g_strdup_printf("chardev-%s", driver); | |
505 | ||
506 | oc = object_class_by_name(typename); | |
507 | g_free(typename); | |
508 | ||
509 | if (!object_class_dynamic_cast(oc, TYPE_CHARDEV)) { | |
510 | error_setg(errp, "'%s' is not a valid char driver name", driver); | |
511 | return NULL; | |
512 | } | |
d654f34e | 513 | |
88cace9f MAL |
514 | if (object_class_is_abstract(oc)) { |
515 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver", | |
516 | "abstract device type"); | |
517 | return NULL; | |
518 | } | |
519 | ||
520 | cc = CHARDEV_CLASS(oc); | |
521 | if (cc->internal) { | |
522 | error_setg(errp, "'%s' is not a valid char driver name", driver); | |
523 | return NULL; | |
524 | } | |
525 | ||
526 | return cc; | |
527 | } | |
528 | ||
529 | static const struct ChardevAlias { | |
530 | const char *typename; | |
531 | const char *alias; | |
532 | } chardev_alias_table[] = { | |
533 | #ifdef HAVE_CHARDEV_PARPORT | |
534 | { "parallel", "parport" }, | |
535 | #endif | |
536 | #ifdef HAVE_CHARDEV_SERIAL | |
537 | { "serial", "tty" }, | |
538 | #endif | |
539 | }; | |
540 | ||
541 | typedef struct ChadevClassFE { | |
542 | void (*fn)(const char *name, void *opaque); | |
543 | void *opaque; | |
544 | } ChadevClassFE; | |
545 | ||
546 | static void | |
547 | chardev_class_foreach(ObjectClass *klass, void *opaque) | |
2c5f4882 | 548 | { |
88cace9f MAL |
549 | ChadevClassFE *fe = opaque; |
550 | ||
551 | assert(g_str_has_prefix(object_class_get_name(klass), "chardev-")); | |
552 | if (CHARDEV_CLASS(klass)->internal) { | |
553 | return; | |
554 | } | |
555 | ||
556 | fe->fn(object_class_get_name(klass) + 8, fe->opaque); | |
557 | } | |
558 | ||
559 | static void | |
560 | chardev_name_foreach(void (*fn)(const char *name, void *opaque), void *opaque) | |
561 | { | |
562 | ChadevClassFE fe = { .fn = fn, .opaque = opaque }; | |
563 | int i; | |
564 | ||
565 | object_class_foreach(chardev_class_foreach, TYPE_CHARDEV, false, &fe); | |
566 | ||
c7e47c63 | 567 | for (i = 0; i < (int)ARRAY_SIZE(chardev_alias_table); i++) { |
88cace9f MAL |
568 | fn(chardev_alias_table[i].alias, opaque); |
569 | } | |
570 | } | |
571 | ||
572 | static void | |
573 | help_string_append(const char *name, void *opaque) | |
574 | { | |
575 | GString *str = opaque; | |
576 | ||
577 | g_string_append_printf(str, "\n%s", name); | |
2c5f4882 GH |
578 | } |
579 | ||
313e45b5 AN |
580 | static const char *chardev_alias_translate(const char *name) |
581 | { | |
582 | int i; | |
583 | for (i = 0; i < (int)ARRAY_SIZE(chardev_alias_table); i++) { | |
584 | if (g_strcmp0(chardev_alias_table[i].alias, name) == 0) { | |
585 | return chardev_alias_table[i].typename; | |
586 | } | |
587 | } | |
588 | return name; | |
589 | } | |
590 | ||
75b60160 | 591 | ChardevBackend *qemu_chr_parse_opts(QemuOpts *opts, Error **errp) |
191bc01b | 592 | { |
0aff637e | 593 | Error *local_err = NULL; |
88cace9f | 594 | const ChardevClass *cc; |
0b663b7d | 595 | ChardevBackend *backend = NULL; |
313e45b5 | 596 | const char *name = chardev_alias_translate(qemu_opt_get(opts, "backend")); |
191bc01b | 597 | |
0b812f31 | 598 | if (name == NULL) { |
312fd5f2 | 599 | error_setg(errp, "chardev: \"%s\" missing backend", |
bd2d80b2 | 600 | qemu_opts_id(opts)); |
0b663b7d | 601 | return NULL; |
1bbd185f | 602 | } |
517b3d40 | 603 | |
313e45b5 AN |
604 | cc = char_get_class(name, errp); |
605 | if (cc == NULL) { | |
606 | return NULL; | |
607 | } | |
608 | ||
609 | backend = g_new0(ChardevBackend, 1); | |
610 | backend->type = CHARDEV_BACKEND_KIND_NULL; | |
611 | ||
612 | if (cc->parse) { | |
613 | cc->parse(opts, backend, &local_err); | |
614 | if (local_err) { | |
615 | error_propagate(errp, local_err); | |
616 | qapi_free_ChardevBackend(backend); | |
617 | return NULL; | |
618 | } | |
619 | } else { | |
620 | ChardevCommon *ccom = g_new0(ChardevCommon, 1); | |
621 | qemu_chr_parse_common(opts, ccom); | |
622 | backend->u.null.data = ccom; /* Any ChardevCommon member would work */ | |
623 | } | |
624 | ||
625 | return backend; | |
626 | } | |
627 | ||
628 | Chardev *qemu_chr_new_from_opts(QemuOpts *opts, Error **errp) | |
629 | { | |
630 | const ChardevClass *cc; | |
631 | Chardev *chr = NULL; | |
632 | ChardevBackend *backend = NULL; | |
633 | const char *name = chardev_alias_translate(qemu_opt_get(opts, "backend")); | |
634 | const char *id = qemu_opts_id(opts); | |
635 | char *bid = NULL; | |
636 | ||
637 | if (name && is_help_option(name)) { | |
776a32a0 | 638 | GString *str = g_string_new(""); |
88cace9f MAL |
639 | |
640 | chardev_name_foreach(help_string_append, str); | |
776a32a0 MAL |
641 | |
642 | error_report("Available chardev backend types: %s", str->str); | |
643 | g_string_free(str, true); | |
0ec846bf | 644 | return NULL; |
517b3d40 LM |
645 | } |
646 | ||
647 | if (id == NULL) { | |
648 | error_setg(errp, "chardev: no id specified"); | |
0b663b7d | 649 | return NULL; |
517b3d40 LM |
650 | } |
651 | ||
313e45b5 AN |
652 | backend = qemu_chr_parse_opts(opts, errp); |
653 | if (backend == NULL) { | |
654 | return NULL; | |
191bc01b | 655 | } |
88cace9f MAL |
656 | |
657 | cc = char_get_class(name, errp); | |
658 | if (cc == NULL) { | |
313e45b5 | 659 | goto out; |
191bc01b GH |
660 | } |
661 | ||
a61ae7f8 PM |
662 | if (qemu_opt_get_bool(opts, "mux", 0)) { |
663 | bid = g_strdup_printf("%s-base", id); | |
664 | } | |
2c5f4882 | 665 | |
c5749f7c | 666 | chr = qemu_chardev_new(bid ? bid : id, |
0b663b7d MAL |
667 | object_class_get_name(OBJECT_CLASS(cc)), |
668 | backend, errp); | |
c5749f7c | 669 | |
0b663b7d MAL |
670 | if (chr == NULL) { |
671 | goto out; | |
191bc01b GH |
672 | } |
673 | ||
a61ae7f8 | 674 | if (bid) { |
0b663b7d | 675 | Chardev *mux; |
a61ae7f8 | 676 | qapi_free_ChardevBackend(backend); |
a61ae7f8 | 677 | backend = g_new0(ChardevBackend, 1); |
130257dc | 678 | backend->type = CHARDEV_BACKEND_KIND_MUX; |
0b663b7d | 679 | backend->u.mux.data = g_new0(ChardevMux, 1); |
32bafa8f | 680 | backend->u.mux.data->chardev = g_strdup(bid); |
c5749f7c | 681 | mux = qemu_chardev_new(id, TYPE_CHARDEV_MUX, backend, errp); |
0b663b7d | 682 | if (mux == NULL) { |
2f5d45a1 | 683 | object_unparent(OBJECT(chr)); |
a61ae7f8 | 684 | chr = NULL; |
0b663b7d | 685 | goto out; |
a61ae7f8 | 686 | } |
0b663b7d | 687 | chr = mux; |
bd5c51ee | 688 | } |
7591c5c1 | 689 | |
0b663b7d | 690 | out: |
a61ae7f8 | 691 | qapi_free_ChardevBackend(backend); |
a61ae7f8 | 692 | g_free(bid); |
191bc01b GH |
693 | return chr; |
694 | } | |
695 | ||
0ec7b3e7 | 696 | Chardev *qemu_chr_new_noreplay(const char *label, const char *filename) |
6f97dba0 AL |
697 | { |
698 | const char *p; | |
0ec7b3e7 | 699 | Chardev *chr; |
191bc01b | 700 | QemuOpts *opts; |
bd2d80b2 | 701 | Error *err = NULL; |
191bc01b | 702 | |
c845f401 GH |
703 | if (strstart(filename, "chardev:", &p)) { |
704 | return qemu_chr_find(p); | |
705 | } | |
706 | ||
191bc01b | 707 | opts = qemu_chr_parse_compat(label, filename); |
7e1b35b4 GH |
708 | if (!opts) |
709 | return NULL; | |
6f97dba0 | 710 | |
b4948be9 | 711 | chr = qemu_chr_new_from_opts(opts, &err); |
84d18f06 | 712 | if (err) { |
565f65d2 | 713 | error_report_err(err); |
bd2d80b2 | 714 | } |
7e1b35b4 GH |
715 | if (chr && qemu_opt_get_bool(opts, "mux", 0)) { |
716 | monitor_init(chr, MONITOR_USE_READLINE); | |
6f97dba0 | 717 | } |
0a73336d | 718 | qemu_opts_del(opts); |
6f97dba0 AL |
719 | return chr; |
720 | } | |
721 | ||
0ec7b3e7 | 722 | Chardev *qemu_chr_new(const char *label, const char *filename) |
33577b47 | 723 | { |
0ec7b3e7 | 724 | Chardev *chr; |
b4948be9 | 725 | chr = qemu_chr_new_noreplay(label, filename); |
33577b47 | 726 | if (chr) { |
5ebd6703 MAL |
727 | if (replay_mode != REPLAY_MODE_NONE) { |
728 | qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_REPLAY); | |
729 | } | |
777357d7 | 730 | if (qemu_chr_replay(chr) && CHARDEV_GET_CLASS(chr)->chr_ioctl) { |
776a32a0 MAL |
731 | error_report("Replay: ioctl is not supported " |
732 | "for serial devices yet"); | |
33577b47 PD |
733 | } |
734 | replay_register_char_driver(chr); | |
735 | } | |
736 | return chr; | |
737 | } | |
738 | ||
6061162e | 739 | static int qmp_query_chardev_foreach(Object *obj, void *data) |
1ad78ea5 | 740 | { |
6061162e MAL |
741 | Chardev *chr = CHARDEV(obj); |
742 | ChardevInfoList **list = data; | |
743 | ChardevInfoList *info = g_malloc0(sizeof(*info)); | |
744 | ||
745 | info->value = g_malloc0(sizeof(*info->value)); | |
746 | info->value->label = g_strdup(chr->label); | |
747 | info->value->filename = g_strdup(chr->filename); | |
748 | info->value->frontend_open = chr->be && chr->be->fe_open; | |
749 | ||
750 | info->next = *list; | |
751 | *list = info; | |
752 | ||
753 | return 0; | |
1ad78ea5 MAL |
754 | } |
755 | ||
c5a415a0 | 756 | ChardevInfoList *qmp_query_chardev(Error **errp) |
6f97dba0 | 757 | { |
c5a415a0 | 758 | ChardevInfoList *chr_list = NULL; |
6f97dba0 | 759 | |
6061162e MAL |
760 | object_child_foreach(get_chardevs_root(), |
761 | qmp_query_chardev_foreach, &chr_list); | |
588b3832 | 762 | |
c5a415a0 | 763 | return chr_list; |
6f97dba0 | 764 | } |
c845f401 | 765 | |
88cace9f MAL |
766 | static void |
767 | qmp_prepend_backend(const char *name, void *opaque) | |
0b812f31 | 768 | { |
88cace9f | 769 | ChardevBackendInfoList **list = opaque; |
0b812f31 | 770 | ChardevBackendInfoList *info = g_malloc0(sizeof(*info)); |
88cace9f | 771 | |
0b812f31 MAL |
772 | info->value = g_malloc0(sizeof(*info->value)); |
773 | info->value->name = g_strdup(name); | |
88cace9f MAL |
774 | info->next = *list; |
775 | *list = info; | |
0b812f31 MAL |
776 | } |
777 | ||
77d1c3c6 MK |
778 | ChardevBackendInfoList *qmp_query_chardev_backends(Error **errp) |
779 | { | |
780 | ChardevBackendInfoList *backend_list = NULL; | |
a1698bf1 | 781 | |
88cace9f | 782 | chardev_name_foreach(qmp_prepend_backend, &backend_list); |
77d1c3c6 MK |
783 | |
784 | return backend_list; | |
785 | } | |
786 | ||
0ec7b3e7 | 787 | Chardev *qemu_chr_find(const char *name) |
c845f401 | 788 | { |
6061162e | 789 | Object *obj = object_resolve_path_component(get_chardevs_root(), name); |
c845f401 | 790 | |
6061162e | 791 | return obj ? CHARDEV(obj) : NULL; |
c845f401 | 792 | } |
0beb4942 | 793 | |
4d454574 PB |
794 | QemuOptsList qemu_chardev_opts = { |
795 | .name = "chardev", | |
796 | .implied_opt_name = "backend", | |
797 | .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head), | |
798 | .desc = { | |
799 | { | |
800 | .name = "backend", | |
801 | .type = QEMU_OPT_STRING, | |
802 | },{ | |
803 | .name = "path", | |
804 | .type = QEMU_OPT_STRING, | |
805 | },{ | |
806 | .name = "host", | |
807 | .type = QEMU_OPT_STRING, | |
808 | },{ | |
809 | .name = "port", | |
810 | .type = QEMU_OPT_STRING, | |
811 | },{ | |
812 | .name = "localaddr", | |
813 | .type = QEMU_OPT_STRING, | |
814 | },{ | |
815 | .name = "localport", | |
816 | .type = QEMU_OPT_STRING, | |
817 | },{ | |
818 | .name = "to", | |
819 | .type = QEMU_OPT_NUMBER, | |
820 | },{ | |
821 | .name = "ipv4", | |
822 | .type = QEMU_OPT_BOOL, | |
823 | },{ | |
824 | .name = "ipv6", | |
825 | .type = QEMU_OPT_BOOL, | |
826 | },{ | |
827 | .name = "wait", | |
828 | .type = QEMU_OPT_BOOL, | |
829 | },{ | |
830 | .name = "server", | |
831 | .type = QEMU_OPT_BOOL, | |
832 | },{ | |
833 | .name = "delay", | |
834 | .type = QEMU_OPT_BOOL, | |
5dd1f02b CM |
835 | },{ |
836 | .name = "reconnect", | |
837 | .type = QEMU_OPT_NUMBER, | |
4d454574 PB |
838 | },{ |
839 | .name = "telnet", | |
840 | .type = QEMU_OPT_BOOL, | |
ae92cbd5 JL |
841 | },{ |
842 | .name = "tn3270", | |
843 | .type = QEMU_OPT_BOOL, | |
a8fb5427 DB |
844 | },{ |
845 | .name = "tls-creds", | |
846 | .type = QEMU_OPT_STRING, | |
4d454574 PB |
847 | },{ |
848 | .name = "width", | |
849 | .type = QEMU_OPT_NUMBER, | |
850 | },{ | |
851 | .name = "height", | |
852 | .type = QEMU_OPT_NUMBER, | |
853 | },{ | |
854 | .name = "cols", | |
855 | .type = QEMU_OPT_NUMBER, | |
856 | },{ | |
857 | .name = "rows", | |
858 | .type = QEMU_OPT_NUMBER, | |
859 | },{ | |
860 | .name = "mux", | |
861 | .type = QEMU_OPT_BOOL, | |
862 | },{ | |
863 | .name = "signal", | |
864 | .type = QEMU_OPT_BOOL, | |
865 | },{ | |
866 | .name = "name", | |
867 | .type = QEMU_OPT_STRING, | |
868 | },{ | |
869 | .name = "debug", | |
870 | .type = QEMU_OPT_NUMBER, | |
51767e7c | 871 | },{ |
3949e594 | 872 | .name = "size", |
de1cc36e | 873 | .type = QEMU_OPT_SIZE, |
bb6fb7c0 GH |
874 | },{ |
875 | .name = "chardev", | |
876 | .type = QEMU_OPT_STRING, | |
31e38a22 OK |
877 | },{ |
878 | .name = "append", | |
879 | .type = QEMU_OPT_BOOL, | |
d0d7708b DB |
880 | },{ |
881 | .name = "logfile", | |
882 | .type = QEMU_OPT_STRING, | |
883 | },{ | |
884 | .name = "logappend", | |
885 | .type = QEMU_OPT_BOOL, | |
4d454574 PB |
886 | }, |
887 | { /* end of list */ } | |
888 | }, | |
889 | }; | |
f1a1a356 | 890 | |
0ec7b3e7 | 891 | bool qemu_chr_has_feature(Chardev *chr, |
279b066e | 892 | ChardevFeature feature) |
0a73336d DB |
893 | { |
894 | return test_bit(feature, chr->features); | |
895 | } | |
896 | ||
0ec7b3e7 | 897 | void qemu_chr_set_feature(Chardev *chr, |
279b066e | 898 | ChardevFeature feature) |
0a73336d DB |
899 | { |
900 | return set_bit(feature, chr->features); | |
901 | } | |
902 | ||
777357d7 | 903 | Chardev *qemu_chardev_new(const char *id, const char *typename, |
2f5d45a1 MAL |
904 | ChardevBackend *backend, |
905 | Error **errp) | |
f1a1a356 | 906 | { |
2f5d45a1 | 907 | Object *obj; |
0ec7b3e7 | 908 | Chardev *chr = NULL; |
eaeba653 | 909 | Error *local_err = NULL; |
82878dac | 910 | bool be_opened = true; |
f1a1a356 | 911 | |
777357d7 | 912 | assert(g_str_has_prefix(typename, "chardev-")); |
f1a1a356 | 913 | |
2f5d45a1 MAL |
914 | obj = object_new(typename); |
915 | chr = CHARDEV(obj); | |
777357d7 | 916 | chr->label = g_strdup(id); |
4ca17281 | 917 | |
777357d7 | 918 | qemu_char_open(chr, backend, &be_opened, &local_err); |
a1698bf1 | 919 | if (local_err) { |
2f5d45a1 | 920 | goto end; |
eaeba653 PB |
921 | } |
922 | ||
eaeba653 | 923 | if (!chr->filename) { |
777357d7 | 924 | chr->filename = g_strdup(typename + 8); |
f1a1a356 | 925 | } |
82878dac | 926 | if (be_opened) { |
eaeba653 PB |
927 | qemu_chr_be_event(chr, CHR_EVENT_OPENED); |
928 | } | |
777357d7 | 929 | |
2f5d45a1 MAL |
930 | if (id) { |
931 | object_property_add_child(get_chardevs_root(), id, obj, &local_err); | |
932 | if (local_err) { | |
933 | goto end; | |
934 | } | |
935 | object_unref(obj); | |
936 | } | |
937 | ||
938 | end: | |
939 | if (local_err) { | |
940 | error_propagate(errp, local_err); | |
941 | object_unref(obj); | |
942 | return NULL; | |
943 | } | |
944 | ||
777357d7 MAL |
945 | return chr; |
946 | } | |
947 | ||
948 | ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend, | |
949 | Error **errp) | |
950 | { | |
951 | const ChardevClass *cc; | |
952 | ChardevReturn *ret; | |
953 | Chardev *chr; | |
954 | ||
977c736f | 955 | cc = char_get_class(ChardevBackendKind_str(backend->type), errp); |
777357d7 MAL |
956 | if (!cc) { |
957 | return NULL; | |
958 | } | |
959 | ||
c5749f7c | 960 | chr = qemu_chardev_new(id, object_class_get_name(OBJECT_CLASS(cc)), |
777357d7 MAL |
961 | backend, errp); |
962 | if (!chr) { | |
963 | return NULL; | |
964 | } | |
965 | ||
966 | ret = g_new0(ChardevReturn, 1); | |
967 | if (CHARDEV_IS_PTY(chr)) { | |
968 | ret->pty = g_strdup(chr->filename + 4); | |
969 | ret->has_pty = true; | |
970 | } | |
971 | ||
eaeba653 | 972 | return ret; |
f1a1a356 GH |
973 | } |
974 | ||
7bb86085 AN |
975 | ChardevReturn *qmp_chardev_change(const char *id, ChardevBackend *backend, |
976 | Error **errp) | |
977 | { | |
978 | CharBackend *be; | |
979 | const ChardevClass *cc; | |
980 | Chardev *chr, *chr_new; | |
981 | bool closed_sent = false; | |
982 | ChardevReturn *ret; | |
983 | ||
984 | chr = qemu_chr_find(id); | |
985 | if (!chr) { | |
986 | error_setg(errp, "Chardev '%s' does not exist", id); | |
987 | return NULL; | |
988 | } | |
989 | ||
990 | if (CHARDEV_IS_MUX(chr)) { | |
991 | error_setg(errp, "Mux device hotswap not supported yet"); | |
992 | return NULL; | |
993 | } | |
994 | ||
995 | if (qemu_chr_replay(chr)) { | |
996 | error_setg(errp, | |
997 | "Chardev '%s' cannot be changed in record/replay mode", id); | |
998 | return NULL; | |
999 | } | |
1000 | ||
1001 | be = chr->be; | |
1002 | if (!be) { | |
1003 | /* easy case */ | |
1004 | object_unparent(OBJECT(chr)); | |
1005 | return qmp_chardev_add(id, backend, errp); | |
1006 | } | |
1007 | ||
1008 | if (!be->chr_be_change) { | |
1009 | error_setg(errp, "Chardev user does not support chardev hotswap"); | |
1010 | return NULL; | |
1011 | } | |
1012 | ||
977c736f | 1013 | cc = char_get_class(ChardevBackendKind_str(backend->type), errp); |
7bb86085 AN |
1014 | if (!cc) { |
1015 | return NULL; | |
1016 | } | |
1017 | ||
1018 | chr_new = qemu_chardev_new(NULL, object_class_get_name(OBJECT_CLASS(cc)), | |
1019 | backend, errp); | |
1020 | if (!chr_new) { | |
1021 | return NULL; | |
1022 | } | |
1023 | chr_new->label = g_strdup(id); | |
1024 | ||
1025 | if (chr->be_open && !chr_new->be_open) { | |
1026 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); | |
1027 | closed_sent = true; | |
1028 | } | |
1029 | ||
1030 | chr->be = NULL; | |
1031 | qemu_chr_fe_init(be, chr_new, &error_abort); | |
1032 | ||
1033 | if (be->chr_be_change(be->opaque) < 0) { | |
1034 | error_setg(errp, "Chardev '%s' change failed", chr_new->label); | |
1035 | chr_new->be = NULL; | |
1036 | qemu_chr_fe_init(be, chr, &error_abort); | |
1037 | if (closed_sent) { | |
1038 | qemu_chr_be_event(chr, CHR_EVENT_OPENED); | |
1039 | } | |
1040 | object_unref(OBJECT(chr_new)); | |
1041 | return NULL; | |
1042 | } | |
1043 | ||
1044 | object_unparent(OBJECT(chr)); | |
1045 | object_property_add_child(get_chardevs_root(), chr_new->label, | |
1046 | OBJECT(chr_new), &error_abort); | |
1047 | object_unref(OBJECT(chr_new)); | |
1048 | ||
1049 | ret = g_new0(ChardevReturn, 1); | |
1050 | if (CHARDEV_IS_PTY(chr_new)) { | |
1051 | ret->pty = g_strdup(chr_new->filename + 4); | |
1052 | ret->has_pty = true; | |
1053 | } | |
1054 | ||
1055 | return ret; | |
1056 | } | |
1057 | ||
f1a1a356 GH |
1058 | void qmp_chardev_remove(const char *id, Error **errp) |
1059 | { | |
0ec7b3e7 | 1060 | Chardev *chr; |
f1a1a356 GH |
1061 | |
1062 | chr = qemu_chr_find(id); | |
8108fd3e | 1063 | if (chr == NULL) { |
f1a1a356 GH |
1064 | error_setg(errp, "Chardev '%s' not found", id); |
1065 | return; | |
1066 | } | |
a4afa548 | 1067 | if (qemu_chr_is_busy(chr)) { |
f1a1a356 GH |
1068 | error_setg(errp, "Chardev '%s' is busy", id); |
1069 | return; | |
1070 | } | |
5ebd6703 | 1071 | if (qemu_chr_replay(chr)) { |
33577b47 PD |
1072 | error_setg(errp, |
1073 | "Chardev '%s' cannot be unplugged in record/replay mode", id); | |
1074 | return; | |
1075 | } | |
2f5d45a1 | 1076 | object_unparent(OBJECT(chr)); |
f1a1a356 | 1077 | } |
d654f34e | 1078 | |
bd1d5ad9 SF |
1079 | void qmp_chardev_send_break(const char *id, Error **errp) |
1080 | { | |
1081 | Chardev *chr; | |
1082 | ||
1083 | chr = qemu_chr_find(id); | |
1084 | if (chr == NULL) { | |
1085 | error_setg(errp, "Chardev '%s' not found", id); | |
1086 | return; | |
1087 | } | |
1088 | qemu_chr_be_event(chr, CHR_EVENT_BREAK); | |
1089 | } | |
1090 | ||
2c716ba1 PX |
1091 | /* |
1092 | * Add a timeout callback for the chardev (in milliseconds), return | |
1093 | * the GSource object created. Please use this to add timeout hook for | |
1094 | * chardev instead of g_timeout_add() and g_timeout_add_seconds(), to | |
1095 | * make sure the gcontext that the task bound to is correct. | |
1096 | */ | |
1097 | GSource *qemu_chr_timeout_add_ms(Chardev *chr, guint ms, | |
1098 | GSourceFunc func, void *private) | |
1099 | { | |
1100 | GSource *source = g_timeout_source_new(ms); | |
1101 | ||
1102 | assert(func); | |
1103 | g_source_set_callback(source, func, private, NULL); | |
1104 | g_source_attach(source, chr->gcontext); | |
1105 | ||
1106 | return source; | |
1107 | } | |
1108 | ||
aa5cb7f5 | 1109 | void qemu_chr_cleanup(void) |
c1111a24 | 1110 | { |
2f5d45a1 | 1111 | object_unparent(get_chardevs_root()); |
c1111a24 MAL |
1112 | } |
1113 | ||
d654f34e AL |
1114 | static void register_types(void) |
1115 | { | |
88cace9f | 1116 | type_register_static(&char_type_info); |
0b812f31 | 1117 | |
7b7ab18d MR |
1118 | /* this must be done after machine init, since we register FEs with muxes |
1119 | * as part of realize functions like serial_isa_realizefn when -nographic | |
1120 | * is specified | |
1121 | */ | |
1122 | qemu_add_machine_init_done_notifier(&muxes_realize_notify); | |
d654f34e AL |
1123 | } |
1124 | ||
1125 | type_init(register_types); |