]>
Commit | Line | Data |
---|---|---|
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 | */ | |
d38ea87a | 24 | #include "qemu/osdep.h" |
6f97dba0 | 25 | #include "qemu-common.h" |
f348b6d1 | 26 | #include "qemu/cutils.h" |
83c9089e | 27 | #include "monitor/monitor.h" |
9c17d615 | 28 | #include "sysemu/sysemu.h" |
da31d594 | 29 | #include "sysemu/block-backend.h" |
d49b6836 | 30 | #include "qemu/error-report.h" |
1de7afc9 | 31 | #include "qemu/timer.h" |
dccfcd0e | 32 | #include "sysemu/char.h" |
cf3ebac7 | 33 | #include "hw/usb.h" |
c5a415a0 | 34 | #include "qmp-commands.h" |
37f9e0a2 | 35 | #include "qapi/clone-visitor.h" |
cfb429cb | 36 | #include "qapi-visit.h" |
e9cf2fe0 | 37 | #include "qemu/base64.h" |
9894dc0c DB |
38 | #include "io/channel-socket.h" |
39 | #include "io/channel-file.h" | |
a8fb5427 | 40 | #include "io/channel-tls.h" |
33577b47 | 41 | #include "sysemu/replay.h" |
517b3d40 | 42 | #include "qemu/help_option.h" |
6f97dba0 | 43 | |
6f97dba0 AL |
44 | #include <zlib.h> |
45 | ||
46 | #ifndef _WIN32 | |
47 | #include <sys/times.h> | |
48 | #include <sys/wait.h> | |
49 | #include <termios.h> | |
6f97dba0 | 50 | #include <sys/ioctl.h> |
24646c7e | 51 | #include <sys/resource.h> |
6f97dba0 AL |
52 | #include <sys/socket.h> |
53 | #include <netinet/in.h> | |
24646c7e | 54 | #include <net/if.h> |
24646c7e | 55 | #include <arpa/inet.h> |
6f97dba0 AL |
56 | #include <netdb.h> |
57 | #include <sys/select.h> | |
71e72a19 | 58 | #ifdef CONFIG_BSD |
3294ce18 MT |
59 | #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) |
60 | #include <dev/ppbus/ppi.h> | |
61 | #include <dev/ppbus/ppbconf.h> | |
c5e97233 | 62 | #elif defined(__DragonFly__) |
c5e97233 BS |
63 | #include <dev/misc/ppi/ppi.h> |
64 | #include <bus/ppbus/ppbconf.h> | |
6f97dba0 | 65 | #endif |
bbe813a2 | 66 | #else |
6f97dba0 | 67 | #ifdef __linux__ |
6f97dba0 AL |
68 | #include <linux/ppdev.h> |
69 | #include <linux/parport.h> | |
70 | #endif | |
71 | #ifdef __sun__ | |
6f97dba0 AL |
72 | #include <sys/ethernet.h> |
73 | #include <sys/sockio.h> | |
74 | #include <netinet/arp.h> | |
75 | #include <netinet/in.h> | |
76 | #include <netinet/in_systm.h> | |
77 | #include <netinet/ip.h> | |
78 | #include <netinet/ip_icmp.h> // must come after ip.h | |
79 | #include <netinet/udp.h> | |
80 | #include <netinet/tcp.h> | |
6f97dba0 AL |
81 | #endif |
82 | #endif | |
83 | #endif | |
84 | ||
1de7afc9 | 85 | #include "qemu/sockets.h" |
cbcc6336 | 86 | #include "ui/qemu-spice.h" |
6f97dba0 | 87 | |
9bd7854e | 88 | #define READ_BUF_LEN 4096 |
7b0bfdf5 | 89 | #define READ_RETRIES 10 |
c4095726 | 90 | #define TCP_MAX_FDS 16 |
9bd7854e | 91 | |
0ec7b3e7 | 92 | typedef struct MuxChardev MuxChardev; |
6dfa8298 | 93 | |
cfb429cb CM |
94 | /***********************************************************/ |
95 | /* Socket address helpers */ | |
cfb429cb | 96 | |
0ff0fad2 DB |
97 | static char *SocketAddress_to_str(const char *prefix, SocketAddress *addr, |
98 | bool is_listen, bool is_telnet) | |
16cc4ffe | 99 | { |
130257dc | 100 | switch (addr->type) { |
16cc4ffe | 101 | case SOCKET_ADDRESS_KIND_INET: |
0ff0fad2 | 102 | return g_strdup_printf("%s%s:%s:%s%s", prefix, |
32bafa8f EB |
103 | is_telnet ? "telnet" : "tcp", |
104 | addr->u.inet.data->host, | |
105 | addr->u.inet.data->port, | |
106 | is_listen ? ",server" : ""); | |
16cc4ffe CM |
107 | break; |
108 | case SOCKET_ADDRESS_KIND_UNIX: | |
0ff0fad2 | 109 | return g_strdup_printf("%sunix:%s%s", prefix, |
32bafa8f | 110 | addr->u.q_unix.data->path, |
0ff0fad2 | 111 | is_listen ? ",server" : ""); |
16cc4ffe CM |
112 | break; |
113 | case SOCKET_ADDRESS_KIND_FD: | |
32bafa8f | 114 | return g_strdup_printf("%sfd:%s%s", prefix, addr->u.fd.data->str, |
0ff0fad2 | 115 | is_listen ? ",server" : ""); |
16cc4ffe CM |
116 | break; |
117 | default: | |
118 | abort(); | |
119 | } | |
120 | } | |
121 | ||
0ff0fad2 DB |
122 | static char *sockaddr_to_str(struct sockaddr_storage *ss, socklen_t ss_len, |
123 | struct sockaddr_storage *ps, socklen_t ps_len, | |
124 | bool is_listen, bool is_telnet) | |
16cc4ffe | 125 | { |
01ca519f CM |
126 | char shost[NI_MAXHOST], sserv[NI_MAXSERV]; |
127 | char phost[NI_MAXHOST], pserv[NI_MAXSERV]; | |
16cc4ffe CM |
128 | const char *left = "", *right = ""; |
129 | ||
130 | switch (ss->ss_family) { | |
131 | #ifndef _WIN32 | |
132 | case AF_UNIX: | |
0ff0fad2 DB |
133 | return g_strdup_printf("unix:%s%s", |
134 | ((struct sockaddr_un *)(ss))->sun_path, | |
135 | is_listen ? ",server" : ""); | |
16cc4ffe CM |
136 | #endif |
137 | case AF_INET6: | |
138 | left = "["; | |
139 | right = "]"; | |
140 | /* fall through */ | |
141 | case AF_INET: | |
01ca519f CM |
142 | getnameinfo((struct sockaddr *) ss, ss_len, shost, sizeof(shost), |
143 | sserv, sizeof(sserv), NI_NUMERICHOST | NI_NUMERICSERV); | |
144 | getnameinfo((struct sockaddr *) ps, ps_len, phost, sizeof(phost), | |
145 | pserv, sizeof(pserv), NI_NUMERICHOST | NI_NUMERICSERV); | |
0ff0fad2 DB |
146 | return g_strdup_printf("%s:%s%s%s:%s%s <-> %s%s%s:%s", |
147 | is_telnet ? "telnet" : "tcp", | |
148 | left, shost, right, sserv, | |
149 | is_listen ? ",server" : "", | |
150 | left, phost, right, pserv); | |
16cc4ffe CM |
151 | |
152 | default: | |
0ff0fad2 | 153 | return g_strdup_printf("unknown"); |
16cc4ffe CM |
154 | } |
155 | } | |
156 | ||
6f97dba0 AL |
157 | /***********************************************************/ |
158 | /* character device */ | |
159 | ||
0ec7b3e7 | 160 | static QTAILQ_HEAD(ChardevHead, Chardev) chardevs = |
72cf2d4f | 161 | QTAILQ_HEAD_INITIALIZER(chardevs); |
2970a6c9 | 162 | |
0ec7b3e7 | 163 | void qemu_chr_be_event(Chardev *s, int event) |
6f97dba0 | 164 | { |
a4afa548 MAL |
165 | CharBackend *be = s->be; |
166 | ||
73cdf3f2 AG |
167 | /* Keep track if the char device is open */ |
168 | switch (event) { | |
169 | case CHR_EVENT_OPENED: | |
16665b94 | 170 | s->be_open = 1; |
73cdf3f2 AG |
171 | break; |
172 | case CHR_EVENT_CLOSED: | |
16665b94 | 173 | s->be_open = 0; |
73cdf3f2 AG |
174 | break; |
175 | } | |
176 | ||
a4afa548 | 177 | if (!be || !be->chr_event) { |
6f97dba0 | 178 | return; |
a4afa548 MAL |
179 | } |
180 | ||
181 | be->chr_event(be->opaque, event); | |
6f97dba0 AL |
182 | } |
183 | ||
0ec7b3e7 | 184 | void qemu_chr_be_generic_open(Chardev *s) |
6f97dba0 | 185 | { |
bd5c51ee | 186 | qemu_chr_be_event(s, CHR_EVENT_OPENED); |
6f97dba0 AL |
187 | } |
188 | ||
d0d7708b DB |
189 | |
190 | /* Not reporting errors from writing to logfile, as logs are | |
191 | * defined to be "best effort" only */ | |
0ec7b3e7 | 192 | static void qemu_chr_fe_write_log(Chardev *s, |
d0d7708b DB |
193 | const uint8_t *buf, size_t len) |
194 | { | |
195 | size_t done = 0; | |
196 | ssize_t ret; | |
197 | ||
198 | if (s->logfd < 0) { | |
199 | return; | |
200 | } | |
201 | ||
202 | while (done < len) { | |
53628efb DB |
203 | retry: |
204 | ret = write(s->logfd, buf + done, len - done); | |
205 | if (ret == -1 && errno == EAGAIN) { | |
206 | g_usleep(100); | |
207 | goto retry; | |
208 | } | |
d0d7708b DB |
209 | |
210 | if (ret <= 0) { | |
211 | return; | |
212 | } | |
213 | done += ret; | |
214 | } | |
215 | } | |
216 | ||
0ec7b3e7 MAL |
217 | static int qemu_chr_fe_write_buffer(Chardev *s, |
218 | const uint8_t *buf, int len, int *offset) | |
33577b47 | 219 | { |
777357d7 | 220 | ChardevClass *cc = CHARDEV_GET_CLASS(s); |
33577b47 PD |
221 | int res = 0; |
222 | *offset = 0; | |
223 | ||
224 | qemu_mutex_lock(&s->chr_write_lock); | |
225 | while (*offset < len) { | |
53628efb | 226 | retry: |
777357d7 | 227 | res = cc->chr_write(s, buf + *offset, len - *offset); |
53628efb DB |
228 | if (res < 0 && errno == EAGAIN) { |
229 | g_usleep(100); | |
230 | goto retry; | |
231 | } | |
33577b47 PD |
232 | |
233 | if (res <= 0) { | |
234 | break; | |
235 | } | |
236 | ||
237 | *offset += res; | |
238 | } | |
239 | if (*offset > 0) { | |
240 | qemu_chr_fe_write_log(s, buf, *offset); | |
241 | } | |
242 | qemu_mutex_unlock(&s->chr_write_lock); | |
243 | ||
244 | return res; | |
245 | } | |
246 | ||
0ec7b3e7 | 247 | static bool qemu_chr_replay(Chardev *chr) |
5ebd6703 MAL |
248 | { |
249 | return qemu_chr_has_feature(chr, QEMU_CHAR_FEATURE_REPLAY); | |
250 | } | |
251 | ||
5345fdb4 | 252 | int qemu_chr_fe_write(CharBackend *be, const uint8_t *buf, int len) |
6f97dba0 | 253 | { |
0ec7b3e7 | 254 | Chardev *s = be->chr; |
777357d7 | 255 | ChardevClass *cc; |
9005b2a7 PB |
256 | int ret; |
257 | ||
fa394ed6 MAL |
258 | if (!s) { |
259 | return 0; | |
260 | } | |
261 | ||
5ebd6703 | 262 | if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_PLAY) { |
33577b47 PD |
263 | int offset; |
264 | replay_char_write_event_load(&ret, &offset); | |
265 | assert(offset <= len); | |
266 | qemu_chr_fe_write_buffer(s, buf, offset, &offset); | |
267 | return ret; | |
268 | } | |
269 | ||
777357d7 | 270 | cc = CHARDEV_GET_CLASS(s); |
9005b2a7 | 271 | qemu_mutex_lock(&s->chr_write_lock); |
777357d7 | 272 | ret = cc->chr_write(s, buf, len); |
d0d7708b DB |
273 | |
274 | if (ret > 0) { | |
275 | qemu_chr_fe_write_log(s, buf, ret); | |
276 | } | |
277 | ||
9005b2a7 | 278 | qemu_mutex_unlock(&s->chr_write_lock); |
33577b47 | 279 | |
5ebd6703 | 280 | if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_RECORD) { |
33577b47 PD |
281 | replay_char_write_event_save(ret, ret < 0 ? 0 : ret); |
282 | } | |
283 | ||
9005b2a7 | 284 | return ret; |
6f97dba0 AL |
285 | } |
286 | ||
0ec7b3e7 | 287 | static int qemu_chr_write_all(Chardev *s, const uint8_t *buf, int len) |
cd18720a | 288 | { |
33577b47 PD |
289 | int offset; |
290 | int res; | |
cd18720a | 291 | |
5ebd6703 | 292 | if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_PLAY) { |
33577b47 PD |
293 | replay_char_write_event_load(&res, &offset); |
294 | assert(offset <= len); | |
295 | qemu_chr_fe_write_buffer(s, buf, offset, &offset); | |
296 | return res; | |
297 | } | |
cd18720a | 298 | |
33577b47 | 299 | res = qemu_chr_fe_write_buffer(s, buf, len, &offset); |
cd18720a | 300 | |
5ebd6703 | 301 | if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_RECORD) { |
33577b47 | 302 | replay_char_write_event_save(res, offset); |
cd18720a AL |
303 | } |
304 | ||
9005b2a7 PB |
305 | if (res < 0) { |
306 | return res; | |
307 | } | |
cd18720a AL |
308 | return offset; |
309 | } | |
310 | ||
5345fdb4 | 311 | int qemu_chr_fe_write_all(CharBackend *be, const uint8_t *buf, int len) |
7b0bfdf5 | 312 | { |
0ec7b3e7 | 313 | Chardev *s = be->chr; |
5345fdb4 | 314 | |
fa394ed6 MAL |
315 | if (!s) { |
316 | return 0; | |
317 | } | |
318 | ||
5345fdb4 MAL |
319 | return qemu_chr_write_all(s, buf, len); |
320 | } | |
321 | ||
322 | int qemu_chr_fe_read_all(CharBackend *be, uint8_t *buf, int len) | |
323 | { | |
0ec7b3e7 | 324 | Chardev *s = be->chr; |
7b0bfdf5 NN |
325 | int offset = 0, counter = 10; |
326 | int res; | |
327 | ||
777357d7 | 328 | if (!s || !CHARDEV_GET_CLASS(s)->chr_sync_read) { |
7b0bfdf5 NN |
329 | return 0; |
330 | } | |
fa394ed6 | 331 | |
5ebd6703 | 332 | if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_PLAY) { |
33577b47 PD |
333 | return replay_char_read_all_load(buf); |
334 | } | |
7b0bfdf5 NN |
335 | |
336 | while (offset < len) { | |
53628efb | 337 | retry: |
777357d7 MAL |
338 | res = CHARDEV_GET_CLASS(s)->chr_sync_read(s, buf + offset, |
339 | len - offset); | |
53628efb DB |
340 | if (res == -1 && errno == EAGAIN) { |
341 | g_usleep(100); | |
342 | goto retry; | |
343 | } | |
7b0bfdf5 NN |
344 | |
345 | if (res == 0) { | |
346 | break; | |
347 | } | |
348 | ||
349 | if (res < 0) { | |
5ebd6703 | 350 | if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_RECORD) { |
33577b47 PD |
351 | replay_char_read_all_save_error(res); |
352 | } | |
7b0bfdf5 NN |
353 | return res; |
354 | } | |
355 | ||
356 | offset += res; | |
357 | ||
358 | if (!counter--) { | |
359 | break; | |
360 | } | |
361 | } | |
362 | ||
5ebd6703 | 363 | if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_RECORD) { |
33577b47 PD |
364 | replay_char_read_all_save_buf(buf, offset); |
365 | } | |
7b0bfdf5 NN |
366 | return offset; |
367 | } | |
368 | ||
5345fdb4 | 369 | int qemu_chr_fe_ioctl(CharBackend *be, int cmd, void *arg) |
6f97dba0 | 370 | { |
0ec7b3e7 | 371 | Chardev *s = be->chr; |
33577b47 | 372 | int res; |
fa394ed6 | 373 | |
777357d7 | 374 | if (!s || !CHARDEV_GET_CLASS(s)->chr_ioctl || qemu_chr_replay(s)) { |
33577b47 PD |
375 | res = -ENOTSUP; |
376 | } else { | |
777357d7 | 377 | res = CHARDEV_GET_CLASS(s)->chr_ioctl(s, cmd, arg); |
33577b47 PD |
378 | } |
379 | ||
380 | return res; | |
6f97dba0 AL |
381 | } |
382 | ||
0ec7b3e7 | 383 | int qemu_chr_be_can_write(Chardev *s) |
6f97dba0 | 384 | { |
a4afa548 MAL |
385 | CharBackend *be = s->be; |
386 | ||
387 | if (!be || !be->chr_can_read) { | |
6f97dba0 | 388 | return 0; |
a4afa548 MAL |
389 | } |
390 | ||
391 | return be->chr_can_read(be->opaque); | |
6f97dba0 AL |
392 | } |
393 | ||
0ec7b3e7 | 394 | void qemu_chr_be_write_impl(Chardev *s, uint8_t *buf, int len) |
6f97dba0 | 395 | { |
a4afa548 MAL |
396 | CharBackend *be = s->be; |
397 | ||
398 | if (be && be->chr_read) { | |
399 | be->chr_read(be->opaque, buf, len); | |
ac310734 | 400 | } |
6f97dba0 AL |
401 | } |
402 | ||
0ec7b3e7 | 403 | void qemu_chr_be_write(Chardev *s, uint8_t *buf, int len) |
33577b47 | 404 | { |
5ebd6703 | 405 | if (qemu_chr_replay(s)) { |
33577b47 PD |
406 | if (replay_mode == REPLAY_MODE_PLAY) { |
407 | return; | |
408 | } | |
409 | replay_chr_be_write(s, buf, len); | |
410 | } else { | |
411 | qemu_chr_be_write_impl(s, buf, len); | |
412 | } | |
413 | } | |
414 | ||
5345fdb4 | 415 | int qemu_chr_fe_get_msgfd(CharBackend *be) |
7d174059 | 416 | { |
0ec7b3e7 | 417 | Chardev *s = be->chr; |
c76bf6bb | 418 | int fd; |
5345fdb4 | 419 | int res = (qemu_chr_fe_get_msgfds(be, &fd, 1) == 1) ? fd : -1; |
5ebd6703 | 420 | if (s && qemu_chr_replay(s)) { |
776a32a0 MAL |
421 | error_report("Replay: get msgfd is not supported " |
422 | "for serial devices yet"); | |
33577b47 PD |
423 | exit(1); |
424 | } | |
425 | return res; | |
c76bf6bb NN |
426 | } |
427 | ||
5345fdb4 | 428 | int qemu_chr_fe_get_msgfds(CharBackend *be, int *fds, int len) |
c76bf6bb | 429 | { |
0ec7b3e7 | 430 | Chardev *s = be->chr; |
5345fdb4 | 431 | |
fa394ed6 MAL |
432 | if (!s) { |
433 | return -1; | |
434 | } | |
435 | ||
777357d7 MAL |
436 | return CHARDEV_GET_CLASS(s)->get_msgfds ? |
437 | CHARDEV_GET_CLASS(s)->get_msgfds(s, fds, len) : -1; | |
7d174059 MM |
438 | } |
439 | ||
5345fdb4 | 440 | int qemu_chr_fe_set_msgfds(CharBackend *be, int *fds, int num) |
d39aac7a | 441 | { |
0ec7b3e7 | 442 | Chardev *s = be->chr; |
5345fdb4 | 443 | |
fa394ed6 MAL |
444 | if (!s) { |
445 | return -1; | |
446 | } | |
447 | ||
777357d7 MAL |
448 | return CHARDEV_GET_CLASS(s)->set_msgfds ? |
449 | CHARDEV_GET_CLASS(s)->set_msgfds(s, fds, num) : -1; | |
d39aac7a NN |
450 | } |
451 | ||
0ec7b3e7 | 452 | int qemu_chr_add_client(Chardev *s, int fd) |
13661089 | 453 | { |
777357d7 MAL |
454 | return CHARDEV_GET_CLASS(s)->chr_add_client ? |
455 | CHARDEV_GET_CLASS(s)->chr_add_client(s, fd) : -1; | |
13661089 DB |
456 | } |
457 | ||
5345fdb4 | 458 | void qemu_chr_fe_accept_input(CharBackend *be) |
6f97dba0 | 459 | { |
0ec7b3e7 | 460 | Chardev *s = be->chr; |
5345fdb4 | 461 | |
fa394ed6 MAL |
462 | if (!s) { |
463 | return; | |
464 | } | |
465 | ||
777357d7 MAL |
466 | if (CHARDEV_GET_CLASS(s)->chr_accept_input) { |
467 | CHARDEV_GET_CLASS(s)->chr_accept_input(s); | |
b68e956a | 468 | } |
98c8ee1d | 469 | qemu_notify_event(); |
6f97dba0 AL |
470 | } |
471 | ||
5345fdb4 | 472 | void qemu_chr_fe_printf(CharBackend *be, const char *fmt, ...) |
6f97dba0 | 473 | { |
9bd7854e | 474 | char buf[READ_BUF_LEN]; |
6f97dba0 AL |
475 | va_list ap; |
476 | va_start(ap, fmt); | |
477 | vsnprintf(buf, sizeof(buf), fmt, ap); | |
90f998f5 DB |
478 | /* XXX this blocks entire thread. Rewrite to use |
479 | * qemu_chr_fe_write and background I/O callbacks */ | |
5345fdb4 | 480 | qemu_chr_fe_write_all(be, (uint8_t *)buf, strlen(buf)); |
6f97dba0 AL |
481 | va_end(ap); |
482 | } | |
483 | ||
0ec7b3e7 MAL |
484 | static void remove_fd_in_watch(Chardev *chr); |
485 | static void mux_chr_set_handlers(Chardev *chr, GMainContext *context); | |
486 | static void mux_set_focus(Chardev *chr, int focus); | |
6dfa8298 | 487 | |
777357d7 MAL |
488 | static void qemu_char_open(Chardev *chr, ChardevBackend *backend, |
489 | bool *be_opened, Error **errp) | |
6f97dba0 | 490 | { |
777357d7 MAL |
491 | ChardevClass *cc = CHARDEV_GET_CLASS(chr); |
492 | /* Any ChardevCommon member would work */ | |
493 | ChardevCommon *common = backend ? backend->u.null.data : NULL; | |
494 | ||
495 | if (common && common->has_logfile) { | |
496 | int flags = O_WRONLY | O_CREAT; | |
497 | if (common->has_logappend && | |
498 | common->logappend) { | |
499 | flags |= O_APPEND; | |
500 | } else { | |
501 | flags |= O_TRUNC; | |
502 | } | |
503 | chr->logfd = qemu_open(common->logfile, flags, 0666); | |
504 | if (chr->logfd < 0) { | |
505 | error_setg_errno(errp, errno, | |
506 | "Unable to open logfile %s", | |
507 | common->logfile); | |
508 | return; | |
509 | } | |
510 | } | |
511 | ||
512 | if (cc->open) { | |
513 | cc->open(chr, backend, be_opened, errp); | |
514 | } | |
6f97dba0 AL |
515 | } |
516 | ||
777357d7 | 517 | static void char_init(Object *obj) |
6f97dba0 | 518 | { |
777357d7 | 519 | Chardev *chr = CHARDEV(obj); |
6f97dba0 | 520 | |
777357d7 MAL |
521 | chr->logfd = -1; |
522 | qemu_mutex_init(&chr->chr_write_lock); | |
523 | } | |
524 | ||
525 | static void char_finalize(Object *obj) | |
526 | { | |
527 | Chardev *chr = CHARDEV(obj); | |
528 | ||
529 | if (chr->be) { | |
530 | chr->be->chr = NULL; | |
531 | } | |
532 | g_free(chr->filename); | |
533 | g_free(chr->label); | |
534 | if (chr->logfd != -1) { | |
535 | close(chr->logfd); | |
d0d7708b | 536 | } |
777357d7 MAL |
537 | qemu_mutex_destroy(&chr->chr_write_lock); |
538 | } | |
539 | ||
540 | static const TypeInfo char_type_info = { | |
541 | .name = TYPE_CHARDEV, | |
542 | .parent = TYPE_OBJECT, | |
543 | .instance_size = sizeof(Chardev), | |
544 | .instance_init = char_init, | |
545 | .instance_finalize = char_finalize, | |
546 | .abstract = true, | |
547 | .class_size = sizeof(ChardevClass), | |
548 | }; | |
549 | ||
550 | static int null_chr_write(Chardev *chr, const uint8_t *buf, int len) | |
551 | { | |
552 | return len; | |
553 | } | |
554 | ||
555 | static void null_chr_open(Chardev *chr, | |
556 | ChardevBackend *backend, | |
557 | bool *be_opened, | |
558 | Error **errp) | |
559 | { | |
82878dac | 560 | *be_opened = false; |
6f97dba0 AL |
561 | } |
562 | ||
b68e956a MAL |
563 | static const CharDriver null_driver = { |
564 | .kind = CHARDEV_BACKEND_KIND_NULL, | |
777357d7 MAL |
565 | }; |
566 | ||
567 | static void char_null_class_init(ObjectClass *oc, void *data) | |
568 | { | |
569 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
570 | ||
571 | cc->open = null_chr_open; | |
572 | cc->chr_write = null_chr_write; | |
573 | } | |
574 | ||
575 | static const TypeInfo char_null_type_info = { | |
576 | .name = TYPE_CHARDEV_NULL, | |
577 | .parent = TYPE_CHARDEV, | |
578 | .instance_size = sizeof(Chardev), | |
579 | .class_init = char_null_class_init, | |
b68e956a MAL |
580 | }; |
581 | ||
6f97dba0 | 582 | /* MUX driver for serial I/O splitting */ |
6f97dba0 AL |
583 | #define MAX_MUX 4 |
584 | #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */ | |
585 | #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1) | |
0ec7b3e7 MAL |
586 | struct MuxChardev { |
587 | Chardev parent; | |
a4afa548 | 588 | CharBackend *backends[MAX_MUX]; |
ecb672d1 | 589 | CharBackend chr; |
799f1f23 | 590 | int focus; |
6f97dba0 AL |
591 | int mux_cnt; |
592 | int term_got_escape; | |
593 | int max_size; | |
a80bf99f AL |
594 | /* Intermediate input buffer allows to catch escape sequences even if the |
595 | currently active device is not accepting any input - but only until it | |
596 | is full as well. */ | |
597 | unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE]; | |
598 | int prod[MAX_MUX]; | |
599 | int cons[MAX_MUX]; | |
2d22959d | 600 | int timestamps; |
9005b2a7 | 601 | |
0ec7b3e7 | 602 | /* Protected by the Chardev chr_write_lock. */ |
4ab312f7 | 603 | int linestart; |
2d22959d | 604 | int64_t timestamps_start; |
6dfa8298 | 605 | }; |
6f97dba0 | 606 | |
777357d7 MAL |
607 | #define MUX_CHARDEV(obj) OBJECT_CHECK(MuxChardev, (obj), TYPE_CHARDEV_MUX) |
608 | ||
9005b2a7 | 609 | /* Called with chr_write_lock held. */ |
0ec7b3e7 | 610 | static int mux_chr_write(Chardev *chr, const uint8_t *buf, int len) |
6f97dba0 | 611 | { |
777357d7 | 612 | MuxChardev *d = MUX_CHARDEV(chr); |
6f97dba0 | 613 | int ret; |
2d22959d | 614 | if (!d->timestamps) { |
5345fdb4 | 615 | ret = qemu_chr_fe_write(&d->chr, buf, len); |
6f97dba0 AL |
616 | } else { |
617 | int i; | |
618 | ||
619 | ret = 0; | |
4ab312f7 JK |
620 | for (i = 0; i < len; i++) { |
621 | if (d->linestart) { | |
6f97dba0 AL |
622 | char buf1[64]; |
623 | int64_t ti; | |
624 | int secs; | |
625 | ||
bc72ad67 | 626 | ti = qemu_clock_get_ms(QEMU_CLOCK_REALTIME); |
2d22959d JK |
627 | if (d->timestamps_start == -1) |
628 | d->timestamps_start = ti; | |
629 | ti -= d->timestamps_start; | |
a4bb1db8 | 630 | secs = ti / 1000; |
6f97dba0 AL |
631 | snprintf(buf1, sizeof(buf1), |
632 | "[%02d:%02d:%02d.%03d] ", | |
633 | secs / 3600, | |
634 | (secs / 60) % 60, | |
635 | secs % 60, | |
a4bb1db8 | 636 | (int)(ti % 1000)); |
90f998f5 DB |
637 | /* XXX this blocks entire thread. Rewrite to use |
638 | * qemu_chr_fe_write and background I/O callbacks */ | |
5345fdb4 MAL |
639 | qemu_chr_fe_write_all(&d->chr, |
640 | (uint8_t *)buf1, strlen(buf1)); | |
4ab312f7 JK |
641 | d->linestart = 0; |
642 | } | |
5345fdb4 | 643 | ret += qemu_chr_fe_write(&d->chr, buf + i, 1); |
4ab312f7 JK |
644 | if (buf[i] == '\n') { |
645 | d->linestart = 1; | |
6f97dba0 AL |
646 | } |
647 | } | |
648 | } | |
649 | return ret; | |
650 | } | |
651 | ||
652 | static const char * const mux_help[] = { | |
653 | "% h print this help\n\r", | |
654 | "% x exit emulator\n\r", | |
655 | "% s save disk data back to file (if -snapshot)\n\r", | |
86d10328 | 656 | "% t toggle console timestamps\n\r", |
6f97dba0 AL |
657 | "% b send break (magic sysrq)\n\r", |
658 | "% c switch between console and monitor\n\r", | |
659 | "% % sends %\n\r", | |
660 | NULL | |
661 | }; | |
662 | ||
663 | int term_escape_char = 0x01; /* ctrl-a is used for escape */ | |
0ec7b3e7 | 664 | static void mux_print_help(Chardev *chr) |
6f97dba0 AL |
665 | { |
666 | int i, j; | |
667 | char ebuf[15] = "Escape-Char"; | |
668 | char cbuf[50] = "\n\r"; | |
669 | ||
670 | if (term_escape_char > 0 && term_escape_char < 26) { | |
671 | snprintf(cbuf, sizeof(cbuf), "\n\r"); | |
672 | snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a'); | |
673 | } else { | |
674 | snprintf(cbuf, sizeof(cbuf), | |
675 | "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r", | |
676 | term_escape_char); | |
677 | } | |
90f998f5 DB |
678 | /* XXX this blocks entire thread. Rewrite to use |
679 | * qemu_chr_fe_write and background I/O callbacks */ | |
5345fdb4 | 680 | qemu_chr_write_all(chr, (uint8_t *)cbuf, strlen(cbuf)); |
6f97dba0 AL |
681 | for (i = 0; mux_help[i] != NULL; i++) { |
682 | for (j=0; mux_help[i][j] != '\0'; j++) { | |
683 | if (mux_help[i][j] == '%') | |
5345fdb4 | 684 | qemu_chr_write_all(chr, (uint8_t *)ebuf, strlen(ebuf)); |
6f97dba0 | 685 | else |
5345fdb4 | 686 | qemu_chr_write_all(chr, (uint8_t *)&mux_help[i][j], 1); |
6f97dba0 AL |
687 | } |
688 | } | |
689 | } | |
690 | ||
0ec7b3e7 | 691 | static void mux_chr_send_event(MuxChardev *d, int mux_nr, int event) |
2724b180 | 692 | { |
a4afa548 MAL |
693 | CharBackend *be = d->backends[mux_nr]; |
694 | ||
695 | if (be && be->chr_event) { | |
696 | be->chr_event(be->opaque, event); | |
697 | } | |
2724b180 AL |
698 | } |
699 | ||
0ec7b3e7 | 700 | static int mux_proc_byte(Chardev *chr, MuxChardev *d, int ch) |
6f97dba0 AL |
701 | { |
702 | if (d->term_got_escape) { | |
703 | d->term_got_escape = 0; | |
704 | if (ch == term_escape_char) | |
705 | goto send_char; | |
706 | switch(ch) { | |
707 | case '?': | |
708 | case 'h': | |
709 | mux_print_help(chr); | |
710 | break; | |
711 | case 'x': | |
712 | { | |
713 | const char *term = "QEMU: Terminated\n\r"; | |
5345fdb4 | 714 | qemu_chr_write_all(chr, (uint8_t *)term, strlen(term)); |
6f97dba0 AL |
715 | exit(0); |
716 | break; | |
717 | } | |
718 | case 's': | |
da31d594 | 719 | blk_commit_all(); |
6f97dba0 AL |
720 | break; |
721 | case 'b': | |
a425d23f | 722 | qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
6f97dba0 AL |
723 | break; |
724 | case 'c': | |
6dfa8298 | 725 | assert(d->mux_cnt > 0); /* handler registered with first fe */ |
6f97dba0 | 726 | /* Switch to the next registered device */ |
fb5e19d2 | 727 | mux_set_focus(chr, (d->focus + 1) % d->mux_cnt); |
6f97dba0 | 728 | break; |
2d22959d JK |
729 | case 't': |
730 | d->timestamps = !d->timestamps; | |
731 | d->timestamps_start = -1; | |
4ab312f7 | 732 | d->linestart = 0; |
2d22959d | 733 | break; |
6f97dba0 AL |
734 | } |
735 | } else if (ch == term_escape_char) { | |
736 | d->term_got_escape = 1; | |
737 | } else { | |
738 | send_char: | |
739 | return 1; | |
740 | } | |
741 | return 0; | |
742 | } | |
743 | ||
0ec7b3e7 | 744 | static void mux_chr_accept_input(Chardev *chr) |
6f97dba0 | 745 | { |
777357d7 | 746 | MuxChardev *d = MUX_CHARDEV(chr); |
799f1f23 | 747 | int m = d->focus; |
a4afa548 | 748 | CharBackend *be = d->backends[m]; |
6f97dba0 | 749 | |
a4afa548 MAL |
750 | while (be && d->prod[m] != d->cons[m] && |
751 | be->chr_can_read && be->chr_can_read(be->opaque)) { | |
752 | be->chr_read(be->opaque, | |
753 | &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1); | |
6f97dba0 AL |
754 | } |
755 | } | |
756 | ||
757 | static int mux_chr_can_read(void *opaque) | |
758 | { | |
777357d7 | 759 | MuxChardev *d = MUX_CHARDEV(opaque); |
799f1f23 | 760 | int m = d->focus; |
a4afa548 | 761 | CharBackend *be = d->backends[m]; |
6f97dba0 | 762 | |
a4afa548 | 763 | if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE) { |
6f97dba0 | 764 | return 1; |
a4afa548 MAL |
765 | } |
766 | ||
767 | if (be && be->chr_can_read) { | |
768 | return be->chr_can_read(be->opaque); | |
769 | } | |
770 | ||
6f97dba0 AL |
771 | return 0; |
772 | } | |
773 | ||
774 | static void mux_chr_read(void *opaque, const uint8_t *buf, int size) | |
775 | { | |
777357d7 MAL |
776 | Chardev *chr = CHARDEV(opaque); |
777 | MuxChardev *d = MUX_CHARDEV(opaque); | |
799f1f23 | 778 | int m = d->focus; |
a4afa548 | 779 | CharBackend *be = d->backends[m]; |
6f97dba0 AL |
780 | int i; |
781 | ||
a4afa548 | 782 | mux_chr_accept_input(opaque); |
6f97dba0 | 783 | |
a4afa548 | 784 | for (i = 0; i < size; i++) |
6f97dba0 | 785 | if (mux_proc_byte(chr, d, buf[i])) { |
a80bf99f | 786 | if (d->prod[m] == d->cons[m] && |
a4afa548 MAL |
787 | be && be->chr_can_read && |
788 | be->chr_can_read(be->opaque)) | |
789 | be->chr_read(be->opaque, &buf[i], 1); | |
6f97dba0 | 790 | else |
a80bf99f | 791 | d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i]; |
6f97dba0 AL |
792 | } |
793 | } | |
794 | ||
fffbd9cf PB |
795 | static bool muxes_realized; |
796 | ||
6f97dba0 AL |
797 | static void mux_chr_event(void *opaque, int event) |
798 | { | |
777357d7 | 799 | MuxChardev *d = MUX_CHARDEV(opaque); |
6f97dba0 AL |
800 | int i; |
801 | ||
fffbd9cf PB |
802 | if (!muxes_realized) { |
803 | return; | |
804 | } | |
805 | ||
6f97dba0 AL |
806 | /* Send the event to all registered listeners */ |
807 | for (i = 0; i < d->mux_cnt; i++) | |
2724b180 | 808 | mux_chr_send_event(d, i, event); |
6f97dba0 AL |
809 | } |
810 | ||
7b7ab18d MR |
811 | /** |
812 | * Called after processing of default and command-line-specified | |
813 | * chardevs to deliver CHR_EVENT_OPENED events to any FEs attached | |
814 | * to a mux chardev. This is done here to ensure that | |
815 | * output/prompts/banners are only displayed for the FE that has | |
816 | * focus when initial command-line processing/machine init is | |
817 | * completed. | |
818 | * | |
819 | * After this point, any new FE attached to any new or existing | |
820 | * mux will receive CHR_EVENT_OPENED notifications for the BE | |
821 | * immediately. | |
822 | */ | |
823 | static void muxes_realize_done(Notifier *notifier, void *unused) | |
824 | { | |
0ec7b3e7 | 825 | Chardev *chr; |
7b7ab18d MR |
826 | |
827 | QTAILQ_FOREACH(chr, &chardevs, next) { | |
777357d7 MAL |
828 | if (CHARDEV_IS_MUX(chr)) { |
829 | MuxChardev *d = MUX_CHARDEV(chr); | |
7b7ab18d MR |
830 | int i; |
831 | ||
832 | /* send OPENED to all already-attached FEs */ | |
833 | for (i = 0; i < d->mux_cnt; i++) { | |
834 | mux_chr_send_event(d, i, CHR_EVENT_OPENED); | |
835 | } | |
836 | /* mark mux as OPENED so any new FEs will immediately receive | |
837 | * OPENED event | |
838 | */ | |
839 | qemu_chr_be_generic_open(chr); | |
840 | } | |
841 | } | |
842 | muxes_realized = true; | |
843 | } | |
844 | ||
845 | static Notifier muxes_realize_notify = { | |
846 | .notify = muxes_realize_done, | |
847 | }; | |
848 | ||
0ec7b3e7 | 849 | static GSource *mux_chr_add_watch(Chardev *s, GIOCondition cond) |
3f0838ab | 850 | { |
777357d7 | 851 | MuxChardev *d = MUX_CHARDEV(s); |
0ec7b3e7 | 852 | Chardev *chr = qemu_chr_fe_get_driver(&d->chr); |
777357d7 | 853 | ChardevClass *cc = CHARDEV_GET_CLASS(chr); |
5345fdb4 | 854 | |
777357d7 | 855 | if (!cc->chr_add_watch) { |
b68e956a MAL |
856 | return NULL; |
857 | } | |
858 | ||
777357d7 | 859 | return cc->chr_add_watch(chr, cond); |
3f0838ab KB |
860 | } |
861 | ||
980d0414 | 862 | static void char_mux_finalize(Object *obj) |
1371a369 | 863 | { |
980d0414 | 864 | MuxChardev *d = MUX_CHARDEV(obj); |
a4afa548 | 865 | int i; |
1371a369 | 866 | |
a4afa548 MAL |
867 | for (i = 0; i < d->mux_cnt; i++) { |
868 | CharBackend *be = d->backends[i]; | |
869 | if (be) { | |
870 | be->chr = NULL; | |
871 | } | |
872 | } | |
c39860e6 | 873 | qemu_chr_fe_deinit(&d->chr); |
1371a369 MAL |
874 | } |
875 | ||
0ec7b3e7 | 876 | static void mux_chr_set_handlers(Chardev *chr, GMainContext *context) |
6dfa8298 | 877 | { |
777357d7 | 878 | MuxChardev *d = MUX_CHARDEV(chr); |
6dfa8298 MAL |
879 | |
880 | /* Fix up the real driver with mux routines */ | |
ecb672d1 MAL |
881 | qemu_chr_fe_set_handlers(&d->chr, |
882 | mux_chr_can_read, | |
883 | mux_chr_read, | |
884 | mux_chr_event, | |
885 | chr, | |
39ab61c6 | 886 | context, true); |
6dfa8298 MAL |
887 | } |
888 | ||
0ec7b3e7 | 889 | static void mux_set_focus(Chardev *chr, int focus) |
6dfa8298 | 890 | { |
777357d7 | 891 | MuxChardev *d = MUX_CHARDEV(chr); |
fb5e19d2 | 892 | |
6dfa8298 MAL |
893 | assert(focus >= 0); |
894 | assert(focus < d->mux_cnt); | |
895 | ||
896 | if (d->focus != -1) { | |
897 | mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); | |
898 | } | |
899 | ||
900 | d->focus = focus; | |
fb5e19d2 | 901 | chr->be = d->backends[focus]; |
6dfa8298 MAL |
902 | mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
903 | } | |
904 | ||
777357d7 MAL |
905 | static void qemu_chr_open_mux(Chardev *chr, |
906 | ChardevBackend *backend, | |
907 | bool *be_opened, | |
908 | Error **errp) | |
6f97dba0 | 909 | { |
32bafa8f | 910 | ChardevMux *mux = backend->u.mux.data; |
777357d7 MAL |
911 | Chardev *drv; |
912 | MuxChardev *d = MUX_CHARDEV(chr); | |
6f97dba0 | 913 | |
3c0e5a4a PB |
914 | drv = qemu_chr_find(mux->chardev); |
915 | if (drv == NULL) { | |
916 | error_setg(errp, "mux: base chardev %s not found", mux->chardev); | |
777357d7 | 917 | return; |
3c0e5a4a PB |
918 | } |
919 | ||
799f1f23 | 920 | d->focus = -1; |
7b7ab18d MR |
921 | /* only default to opened state if we've realized the initial |
922 | * set of muxes | |
923 | */ | |
82878dac | 924 | *be_opened = muxes_realized; |
777357d7 | 925 | qemu_chr_fe_init(&d->chr, drv, errp); |
6f97dba0 AL |
926 | } |
927 | ||
0ec7b3e7 | 928 | Chardev *qemu_chr_fe_get_driver(CharBackend *be) |
94a40fc5 MAL |
929 | { |
930 | return be->chr; | |
931 | } | |
932 | ||
0ec7b3e7 | 933 | bool qemu_chr_fe_init(CharBackend *b, Chardev *s, Error **errp) |
94a40fc5 MAL |
934 | { |
935 | int tag = 0; | |
936 | ||
777357d7 MAL |
937 | if (CHARDEV_IS_MUX(s)) { |
938 | MuxChardev *d = MUX_CHARDEV(s); | |
3aef23d7 MAL |
939 | |
940 | if (d->mux_cnt >= MAX_MUX) { | |
941 | goto unavailable; | |
94a40fc5 | 942 | } |
3aef23d7 MAL |
943 | |
944 | d->backends[d->mux_cnt] = b; | |
945 | tag = d->mux_cnt++; | |
946 | } else if (s->be) { | |
947 | goto unavailable; | |
a4afa548 MAL |
948 | } else { |
949 | s->be = b; | |
94a40fc5 MAL |
950 | } |
951 | ||
830896af | 952 | b->fe_open = false; |
94a40fc5 MAL |
953 | b->tag = tag; |
954 | b->chr = s; | |
94a40fc5 | 955 | return true; |
3aef23d7 MAL |
956 | |
957 | unavailable: | |
958 | error_setg(errp, QERR_DEVICE_IN_USE, s->label); | |
959 | return false; | |
94a40fc5 MAL |
960 | } |
961 | ||
0ec7b3e7 | 962 | static bool qemu_chr_is_busy(Chardev *s) |
a4afa548 | 963 | { |
777357d7 MAL |
964 | if (CHARDEV_IS_MUX(s)) { |
965 | MuxChardev *d = MUX_CHARDEV(s); | |
a4afa548 MAL |
966 | return d->mux_cnt >= 0; |
967 | } else { | |
968 | return s->be != NULL; | |
969 | } | |
970 | } | |
971 | ||
c39860e6 MAL |
972 | void qemu_chr_fe_deinit(CharBackend *b) |
973 | { | |
974 | assert(b); | |
975 | ||
976 | if (b->chr) { | |
39ab61c6 | 977 | qemu_chr_fe_set_handlers(b, NULL, NULL, NULL, NULL, NULL, true); |
fb5e19d2 MAL |
978 | if (b->chr->be == b) { |
979 | b->chr->be = NULL; | |
980 | } | |
777357d7 MAL |
981 | if (CHARDEV_IS_MUX(b->chr)) { |
982 | MuxChardev *d = MUX_CHARDEV(b->chr); | |
a4afa548 MAL |
983 | d->backends[b->tag] = NULL; |
984 | } | |
c39860e6 MAL |
985 | b->chr = NULL; |
986 | } | |
987 | } | |
988 | ||
94a40fc5 MAL |
989 | void qemu_chr_fe_set_handlers(CharBackend *b, |
990 | IOCanReadHandler *fd_can_read, | |
991 | IOReadHandler *fd_read, | |
992 | IOEventHandler *fd_event, | |
993 | void *opaque, | |
39ab61c6 MAL |
994 | GMainContext *context, |
995 | bool set_open) | |
94a40fc5 | 996 | { |
0ec7b3e7 | 997 | Chardev *s; |
777357d7 | 998 | ChardevClass *cc; |
386f07d1 MAL |
999 | int fe_open; |
1000 | ||
1001 | s = b->chr; | |
1002 | if (!s) { | |
94a40fc5 MAL |
1003 | return; |
1004 | } | |
1005 | ||
777357d7 | 1006 | cc = CHARDEV_GET_CLASS(s); |
386f07d1 MAL |
1007 | if (!opaque && !fd_can_read && !fd_read && !fd_event) { |
1008 | fe_open = 0; | |
1009 | remove_fd_in_watch(s); | |
1010 | } else { | |
1011 | fe_open = 1; | |
1012 | } | |
a4afa548 MAL |
1013 | b->chr_can_read = fd_can_read; |
1014 | b->chr_read = fd_read; | |
1015 | b->chr_event = fd_event; | |
1016 | b->opaque = opaque; | |
777357d7 MAL |
1017 | if (cc->chr_update_read_handler) { |
1018 | cc->chr_update_read_handler(s, context); | |
386f07d1 MAL |
1019 | } |
1020 | ||
39ab61c6 | 1021 | if (set_open) { |
386f07d1 MAL |
1022 | qemu_chr_fe_set_open(b, fe_open); |
1023 | } | |
94a40fc5 | 1024 | |
386f07d1 MAL |
1025 | if (fe_open) { |
1026 | qemu_chr_fe_take_focus(b); | |
1027 | /* We're connecting to an already opened device, so let's make sure we | |
1028 | also get the open event */ | |
1029 | if (s->be_open) { | |
1030 | qemu_chr_be_generic_open(s); | |
1031 | } | |
1032 | } | |
1033 | ||
777357d7 | 1034 | if (CHARDEV_IS_MUX(s)) { |
386f07d1 | 1035 | mux_chr_set_handlers(s, context); |
94a40fc5 MAL |
1036 | } |
1037 | } | |
1038 | ||
1039 | void qemu_chr_fe_take_focus(CharBackend *b) | |
1040 | { | |
fa394ed6 MAL |
1041 | if (!b->chr) { |
1042 | return; | |
1043 | } | |
1044 | ||
777357d7 | 1045 | if (CHARDEV_IS_MUX(b->chr)) { |
fb5e19d2 | 1046 | mux_set_focus(b->chr, b->tag); |
94a40fc5 MAL |
1047 | } |
1048 | } | |
6f97dba0 | 1049 | |
96c63847 AL |
1050 | typedef struct IOWatchPoll |
1051 | { | |
d185c094 PB |
1052 | GSource parent; |
1053 | ||
9894dc0c | 1054 | QIOChannel *ioc; |
96c63847 | 1055 | GSource *src; |
96c63847 AL |
1056 | |
1057 | IOCanReadHandler *fd_can_read; | |
1e885b25 | 1058 | GSourceFunc fd_read; |
96c63847 | 1059 | void *opaque; |
e92aa36a | 1060 | GMainContext *context; |
96c63847 AL |
1061 | } IOWatchPoll; |
1062 | ||
96c63847 AL |
1063 | static IOWatchPoll *io_watch_poll_from_source(GSource *source) |
1064 | { | |
d185c094 | 1065 | return container_of(source, IOWatchPoll, parent); |
96c63847 AL |
1066 | } |
1067 | ||
e92aa36a ZC |
1068 | static gboolean io_watch_poll_prepare(GSource *source, |
1069 | gint *timeout_) | |
96c63847 AL |
1070 | { |
1071 | IOWatchPoll *iwp = io_watch_poll_from_source(source); | |
d185c094 | 1072 | bool now_active = iwp->fd_can_read(iwp->opaque) > 0; |
1e885b25 | 1073 | bool was_active = iwp->src != NULL; |
d185c094 | 1074 | if (was_active == now_active) { |
96c63847 AL |
1075 | return FALSE; |
1076 | } | |
1077 | ||
d185c094 | 1078 | if (now_active) { |
9894dc0c DB |
1079 | iwp->src = qio_channel_create_watch( |
1080 | iwp->ioc, G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL); | |
1e885b25 | 1081 | g_source_set_callback(iwp->src, iwp->fd_read, iwp->opaque, NULL); |
e92aa36a | 1082 | g_source_attach(iwp->src, iwp->context); |
d185c094 | 1083 | } else { |
1e885b25 PB |
1084 | g_source_destroy(iwp->src); |
1085 | g_source_unref(iwp->src); | |
1086 | iwp->src = NULL; | |
d185c094 PB |
1087 | } |
1088 | return FALSE; | |
96c63847 AL |
1089 | } |
1090 | ||
1091 | static gboolean io_watch_poll_check(GSource *source) | |
1092 | { | |
d185c094 | 1093 | return FALSE; |
96c63847 AL |
1094 | } |
1095 | ||
1096 | static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback, | |
1097 | gpointer user_data) | |
1098 | { | |
d185c094 | 1099 | abort(); |
96c63847 AL |
1100 | } |
1101 | ||
1102 | static void io_watch_poll_finalize(GSource *source) | |
1103 | { | |
2b316774 PB |
1104 | /* Due to a glib bug, removing the last reference to a source |
1105 | * inside a finalize callback causes recursive locking (and a | |
1106 | * deadlock). This is not a problem inside other callbacks, | |
1107 | * including dispatch callbacks, so we call io_remove_watch_poll | |
1108 | * to remove this source. At this point, iwp->src must | |
1109 | * be NULL, or we would leak it. | |
1110 | * | |
1111 | * This would be solved much more elegantly by child sources, | |
1112 | * but we support older glib versions that do not have them. | |
1113 | */ | |
96c63847 | 1114 | IOWatchPoll *iwp = io_watch_poll_from_source(source); |
2b316774 | 1115 | assert(iwp->src == NULL); |
96c63847 AL |
1116 | } |
1117 | ||
1118 | static GSourceFuncs io_watch_poll_funcs = { | |
1119 | .prepare = io_watch_poll_prepare, | |
1120 | .check = io_watch_poll_check, | |
1121 | .dispatch = io_watch_poll_dispatch, | |
1122 | .finalize = io_watch_poll_finalize, | |
1123 | }; | |
1124 | ||
1125 | /* Can only be used for read */ | |
0ec7b3e7 | 1126 | static guint io_add_watch_poll(Chardev *chr, |
e93a68e1 | 1127 | QIOChannel *ioc, |
96c63847 | 1128 | IOCanReadHandler *fd_can_read, |
9894dc0c | 1129 | QIOChannelFunc fd_read, |
e92aa36a ZC |
1130 | gpointer user_data, |
1131 | GMainContext *context) | |
96c63847 AL |
1132 | { |
1133 | IOWatchPoll *iwp; | |
0ca5aa4f | 1134 | int tag; |
e93a68e1 | 1135 | char *name; |
96c63847 | 1136 | |
e92aa36a ZC |
1137 | iwp = (IOWatchPoll *) g_source_new(&io_watch_poll_funcs, |
1138 | sizeof(IOWatchPoll)); | |
96c63847 AL |
1139 | iwp->fd_can_read = fd_can_read; |
1140 | iwp->opaque = user_data; | |
9894dc0c | 1141 | iwp->ioc = ioc; |
1e885b25 PB |
1142 | iwp->fd_read = (GSourceFunc) fd_read; |
1143 | iwp->src = NULL; | |
e92aa36a | 1144 | iwp->context = context; |
96c63847 | 1145 | |
e93a68e1 DB |
1146 | name = g_strdup_printf("chardev-iowatch-%s", chr->label); |
1147 | g_source_set_name((GSource *)iwp, name); | |
1148 | g_free(name); | |
1149 | ||
e92aa36a | 1150 | tag = g_source_attach(&iwp->parent, context); |
0ca5aa4f PB |
1151 | g_source_unref(&iwp->parent); |
1152 | return tag; | |
96c63847 AL |
1153 | } |
1154 | ||
2b316774 PB |
1155 | static void io_remove_watch_poll(guint tag) |
1156 | { | |
1157 | GSource *source; | |
1158 | IOWatchPoll *iwp; | |
1159 | ||
1160 | g_return_if_fail (tag > 0); | |
1161 | ||
1162 | source = g_main_context_find_source_by_id(NULL, tag); | |
1163 | g_return_if_fail (source != NULL); | |
1164 | ||
1165 | iwp = io_watch_poll_from_source(source); | |
1166 | if (iwp->src) { | |
1167 | g_source_destroy(iwp->src); | |
1168 | g_source_unref(iwp->src); | |
1169 | iwp->src = NULL; | |
1170 | } | |
1171 | g_source_destroy(&iwp->parent); | |
1172 | } | |
1173 | ||
0ec7b3e7 | 1174 | static void remove_fd_in_watch(Chardev *chr) |
26da70c7 AS |
1175 | { |
1176 | if (chr->fd_in_tag) { | |
1177 | io_remove_watch_poll(chr->fd_in_tag); | |
1178 | chr->fd_in_tag = 0; | |
1179 | } | |
1180 | } | |
1181 | ||
96c63847 | 1182 | |
9894dc0c DB |
1183 | static int io_channel_send_full(QIOChannel *ioc, |
1184 | const void *buf, size_t len, | |
1185 | int *fds, size_t nfds) | |
76a9644b | 1186 | { |
9894dc0c | 1187 | size_t offset = 0; |
76a9644b | 1188 | |
9894dc0c DB |
1189 | while (offset < len) { |
1190 | ssize_t ret = 0; | |
1191 | struct iovec iov = { .iov_base = (char *)buf + offset, | |
1192 | .iov_len = len - offset }; | |
1193 | ||
1194 | ret = qio_channel_writev_full( | |
1195 | ioc, &iov, 1, | |
1196 | fds, nfds, NULL); | |
1197 | if (ret == QIO_CHANNEL_ERR_BLOCK) { | |
9894dc0c DB |
1198 | if (offset) { |
1199 | return offset; | |
1200 | } | |
76a9644b | 1201 | |
e046fb44 DB |
1202 | errno = EAGAIN; |
1203 | return -1; | |
1204 | } else if (ret < 0) { | |
9894dc0c DB |
1205 | errno = EINVAL; |
1206 | return -1; | |
1207 | } | |
76a9644b | 1208 | |
9894dc0c DB |
1209 | offset += ret; |
1210 | } | |
76a9644b | 1211 | |
9894dc0c | 1212 | return offset; |
76a9644b AL |
1213 | } |
1214 | ||
9894dc0c | 1215 | |
0ff0fad2 | 1216 | #ifndef _WIN32 |
9894dc0c | 1217 | static int io_channel_send(QIOChannel *ioc, const void *buf, size_t len) |
96c63847 | 1218 | { |
9894dc0c | 1219 | return io_channel_send_full(ioc, buf, len, NULL, 0); |
96c63847 | 1220 | } |
96c63847 | 1221 | |
0ec7b3e7 MAL |
1222 | typedef struct FDChardev { |
1223 | Chardev parent; | |
1224 | Chardev *chr; | |
9894dc0c | 1225 | QIOChannel *ioc_in, *ioc_out; |
6f97dba0 | 1226 | int max_size; |
0ec7b3e7 | 1227 | } FDChardev; |
6f97dba0 | 1228 | |
777357d7 MAL |
1229 | #define TYPE_CHARDEV_FD "chardev-fd" |
1230 | #define FD_CHARDEV(obj) OBJECT_CHECK(FDChardev, (obj), TYPE_CHARDEV_FD) | |
1231 | ||
9005b2a7 | 1232 | /* Called with chr_write_lock held. */ |
0ec7b3e7 | 1233 | static int fd_chr_write(Chardev *chr, const uint8_t *buf, int len) |
6f97dba0 | 1234 | { |
777357d7 | 1235 | FDChardev *s = FD_CHARDEV(chr); |
41ac54b2 | 1236 | |
9894dc0c | 1237 | return io_channel_send(s->ioc_out, buf, len); |
6f97dba0 AL |
1238 | } |
1239 | ||
9894dc0c | 1240 | static gboolean fd_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque) |
6f97dba0 | 1241 | { |
777357d7 MAL |
1242 | Chardev *chr = CHARDEV(opaque); |
1243 | FDChardev *s = FD_CHARDEV(opaque); | |
a29753f8 | 1244 | int len; |
9bd7854e | 1245 | uint8_t buf[READ_BUF_LEN]; |
9894dc0c | 1246 | ssize_t ret; |
6f97dba0 AL |
1247 | |
1248 | len = sizeof(buf); | |
a29753f8 | 1249 | if (len > s->max_size) { |
6f97dba0 | 1250 | len = s->max_size; |
a29753f8 AL |
1251 | } |
1252 | if (len == 0) { | |
cdbf6e16 | 1253 | return TRUE; |
a29753f8 AL |
1254 | } |
1255 | ||
9894dc0c DB |
1256 | ret = qio_channel_read( |
1257 | chan, (gchar *)buf, len, NULL); | |
1258 | if (ret == 0) { | |
26da70c7 | 1259 | remove_fd_in_watch(chr); |
a425d23f | 1260 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
a29753f8 | 1261 | return FALSE; |
6f97dba0 | 1262 | } |
9894dc0c DB |
1263 | if (ret > 0) { |
1264 | qemu_chr_be_write(chr, buf, ret); | |
6f97dba0 | 1265 | } |
a29753f8 AL |
1266 | |
1267 | return TRUE; | |
1268 | } | |
1269 | ||
1270 | static int fd_chr_read_poll(void *opaque) | |
1271 | { | |
777357d7 MAL |
1272 | Chardev *chr = CHARDEV(opaque); |
1273 | FDChardev *s = FD_CHARDEV(opaque); | |
a29753f8 AL |
1274 | |
1275 | s->max_size = qemu_chr_be_can_write(chr); | |
1276 | return s->max_size; | |
6f97dba0 AL |
1277 | } |
1278 | ||
0ec7b3e7 | 1279 | static GSource *fd_chr_add_watch(Chardev *chr, GIOCondition cond) |
23673ca7 | 1280 | { |
777357d7 | 1281 | FDChardev *s = FD_CHARDEV(chr); |
9894dc0c | 1282 | return qio_channel_create_watch(s->ioc_out, cond); |
23673ca7 AL |
1283 | } |
1284 | ||
0ec7b3e7 | 1285 | static void fd_chr_update_read_handler(Chardev *chr, |
a4afa548 | 1286 | GMainContext *context) |
6f97dba0 | 1287 | { |
777357d7 | 1288 | FDChardev *s = FD_CHARDEV(chr); |
6f97dba0 | 1289 | |
26da70c7 | 1290 | remove_fd_in_watch(chr); |
9894dc0c | 1291 | if (s->ioc_in) { |
e93a68e1 | 1292 | chr->fd_in_tag = io_add_watch_poll(chr, s->ioc_in, |
9894dc0c | 1293 | fd_chr_read_poll, |
e92aa36a ZC |
1294 | fd_chr_read, chr, |
1295 | context); | |
6f97dba0 AL |
1296 | } |
1297 | } | |
1298 | ||
7f2fe073 | 1299 | static void char_fd_finalize(Object *obj) |
6f97dba0 | 1300 | { |
7f2fe073 MAL |
1301 | Chardev *chr = CHARDEV(obj); |
1302 | FDChardev *s = FD_CHARDEV(obj); | |
6f97dba0 | 1303 | |
26da70c7 | 1304 | remove_fd_in_watch(chr); |
9894dc0c DB |
1305 | if (s->ioc_in) { |
1306 | object_unref(OBJECT(s->ioc_in)); | |
a29753f8 | 1307 | } |
9894dc0c DB |
1308 | if (s->ioc_out) { |
1309 | object_unref(OBJECT(s->ioc_out)); | |
6f97dba0 AL |
1310 | } |
1311 | ||
a425d23f | 1312 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
6f97dba0 AL |
1313 | } |
1314 | ||
1315 | /* open a character device to a unix fd */ | |
777357d7 MAL |
1316 | static void qemu_chr_open_fd(Chardev *chr, |
1317 | int fd_in, int fd_out) | |
6f97dba0 | 1318 | { |
777357d7 | 1319 | FDChardev *s = FD_CHARDEV(chr); |
e93a68e1 | 1320 | char *name; |
6f97dba0 | 1321 | |
9894dc0c | 1322 | s->ioc_in = QIO_CHANNEL(qio_channel_file_new_fd(fd_in)); |
e93a68e1 DB |
1323 | name = g_strdup_printf("chardev-file-in-%s", chr->label); |
1324 | qio_channel_set_name(QIO_CHANNEL(s->ioc_in), name); | |
1325 | g_free(name); | |
9894dc0c | 1326 | s->ioc_out = QIO_CHANNEL(qio_channel_file_new_fd(fd_out)); |
e93a68e1 DB |
1327 | name = g_strdup_printf("chardev-file-out-%s", chr->label); |
1328 | qio_channel_set_name(QIO_CHANNEL(s->ioc_out), name); | |
1329 | g_free(name); | |
4ff12bdb | 1330 | qemu_set_nonblock(fd_out); |
a29753f8 | 1331 | s->chr = chr; |
777357d7 | 1332 | } |
6f97dba0 | 1333 | |
777357d7 MAL |
1334 | static void char_fd_class_init(ObjectClass *oc, void *data) |
1335 | { | |
1336 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
1337 | ||
1338 | cc->chr_add_watch = fd_chr_add_watch; | |
1339 | cc->chr_write = fd_chr_write; | |
1340 | cc->chr_update_read_handler = fd_chr_update_read_handler; | |
6f97dba0 AL |
1341 | } |
1342 | ||
777357d7 MAL |
1343 | static const TypeInfo char_fd_type_info = { |
1344 | .name = TYPE_CHARDEV_FD, | |
1345 | .parent = TYPE_CHARDEV, | |
1346 | .instance_size = sizeof(FDChardev), | |
7f2fe073 | 1347 | .instance_finalize = char_fd_finalize, |
777357d7 MAL |
1348 | .class_init = char_fd_class_init, |
1349 | .abstract = true, | |
1350 | }; | |
1351 | ||
1352 | static void qemu_chr_open_pipe(Chardev *chr, | |
1353 | ChardevBackend *backend, | |
1354 | bool *be_opened, | |
1355 | Error **errp) | |
6f97dba0 | 1356 | { |
32bafa8f | 1357 | ChardevHostdev *opts = backend->u.pipe.data; |
6f97dba0 | 1358 | int fd_in, fd_out; |
0ff0fad2 DB |
1359 | char *filename_in; |
1360 | char *filename_out; | |
548cbb36 | 1361 | const char *filename = opts->device; |
0ff0fad2 DB |
1362 | |
1363 | filename_in = g_strdup_printf("%s.in", filename); | |
1364 | filename_out = g_strdup_printf("%s.out", filename); | |
40ff6d7e KW |
1365 | TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY)); |
1366 | TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY)); | |
0ff0fad2 DB |
1367 | g_free(filename_in); |
1368 | g_free(filename_out); | |
6f97dba0 AL |
1369 | if (fd_in < 0 || fd_out < 0) { |
1370 | if (fd_in >= 0) | |
1371 | close(fd_in); | |
1372 | if (fd_out >= 0) | |
1373 | close(fd_out); | |
b181e047 | 1374 | TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY)); |
a89dd6c3 | 1375 | if (fd_in < 0) { |
20cbe7a2 | 1376 | error_setg_file_open(errp, errno, filename); |
777357d7 | 1377 | return; |
a89dd6c3 | 1378 | } |
6f97dba0 | 1379 | } |
777357d7 | 1380 | qemu_chr_open_fd(chr, fd_in, fd_out); |
6f97dba0 AL |
1381 | } |
1382 | ||
6f97dba0 AL |
1383 | /* init terminal so that we can grab keys */ |
1384 | static struct termios oldtty; | |
1385 | static int old_fd0_flags; | |
c88930a6 | 1386 | static bool stdio_in_use; |
bb002513 | 1387 | static bool stdio_allow_signal; |
e76d4420 GH |
1388 | static bool stdio_echo_state; |
1389 | ||
0ec7b3e7 | 1390 | static void qemu_chr_set_echo_stdio(Chardev *chr, bool echo); |
6f97dba0 AL |
1391 | |
1392 | static void term_exit(void) | |
1393 | { | |
1394 | tcsetattr (0, TCSANOW, &oldtty); | |
1395 | fcntl(0, F_SETFL, old_fd0_flags); | |
1396 | } | |
1397 | ||
e76d4420 GH |
1398 | static void term_stdio_handler(int sig) |
1399 | { | |
1400 | /* restore echo after resume from suspend. */ | |
1401 | qemu_chr_set_echo_stdio(NULL, stdio_echo_state); | |
1402 | } | |
1403 | ||
0ec7b3e7 | 1404 | static void qemu_chr_set_echo_stdio(Chardev *chr, bool echo) |
6f97dba0 AL |
1405 | { |
1406 | struct termios tty; | |
1407 | ||
e76d4420 | 1408 | stdio_echo_state = echo; |
0369364b | 1409 | tty = oldtty; |
bb002513 PB |
1410 | if (!echo) { |
1411 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP | |
6f97dba0 | 1412 | |INLCR|IGNCR|ICRNL|IXON); |
bb002513 PB |
1413 | tty.c_oflag |= OPOST; |
1414 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); | |
1415 | tty.c_cflag &= ~(CSIZE|PARENB); | |
1416 | tty.c_cflag |= CS8; | |
1417 | tty.c_cc[VMIN] = 1; | |
1418 | tty.c_cc[VTIME] = 0; | |
1419 | } | |
bb002513 | 1420 | if (!stdio_allow_signal) |
6f97dba0 | 1421 | tty.c_lflag &= ~ISIG; |
6f97dba0 AL |
1422 | |
1423 | tcsetattr (0, TCSANOW, &tty); | |
6f97dba0 AL |
1424 | } |
1425 | ||
4d833ada | 1426 | static void char_stdio_finalize(Object *obj) |
6f97dba0 AL |
1427 | { |
1428 | term_exit(); | |
6f97dba0 AL |
1429 | } |
1430 | ||
777357d7 MAL |
1431 | static void qemu_chr_open_stdio(Chardev *chr, |
1432 | ChardevBackend *backend, | |
1433 | bool *be_opened, | |
1434 | Error **errp) | |
6f97dba0 | 1435 | { |
32bafa8f | 1436 | ChardevStdio *opts = backend->u.stdio.data; |
e76d4420 | 1437 | struct sigaction act; |
6f97dba0 | 1438 | |
ab51b1d5 | 1439 | if (is_daemonized()) { |
8c84b25d | 1440 | error_setg(errp, "cannot use stdio with -daemonize"); |
777357d7 | 1441 | return; |
ab51b1d5 | 1442 | } |
c88930a6 LL |
1443 | |
1444 | if (stdio_in_use) { | |
8c84b25d | 1445 | error_setg(errp, "cannot use stdio by multiple character devices"); |
777357d7 | 1446 | return; |
c88930a6 LL |
1447 | } |
1448 | ||
1449 | stdio_in_use = true; | |
ed7a1540 | 1450 | old_fd0_flags = fcntl(0, F_GETFL); |
c88930a6 | 1451 | tcgetattr(0, &oldtty); |
4ff12bdb | 1452 | qemu_set_nonblock(0); |
ed7a1540 | 1453 | atexit(term_exit); |
0369364b | 1454 | |
e76d4420 GH |
1455 | memset(&act, 0, sizeof(act)); |
1456 | act.sa_handler = term_stdio_handler; | |
1457 | sigaction(SIGCONT, &act, NULL); | |
1458 | ||
777357d7 MAL |
1459 | qemu_chr_open_fd(chr, 0, 1); |
1460 | ||
7c358031 GH |
1461 | if (opts->has_signal) { |
1462 | stdio_allow_signal = opts->signal; | |
1463 | } | |
5345fdb4 | 1464 | qemu_chr_set_echo_stdio(chr, false); |
6f97dba0 AL |
1465 | } |
1466 | ||
6f97dba0 | 1467 | #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ |
a167ba50 AJ |
1468 | || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ |
1469 | || defined(__GLIBC__) | |
6f97dba0 | 1470 | |
d809ab95 PB |
1471 | #define HAVE_CHARDEV_SERIAL 1 |
1472 | #define HAVE_CHARDEV_PTY 1 | |
e551498e | 1473 | |
6f97dba0 | 1474 | typedef struct { |
0ec7b3e7 | 1475 | Chardev parent; |
9894dc0c | 1476 | QIOChannel *ioc; |
6f97dba0 | 1477 | int read_bytes; |
9005b2a7 | 1478 | |
0ec7b3e7 | 1479 | /* Protected by the Chardev chr_write_lock. */ |
9005b2a7 | 1480 | int connected; |
8aa33caf | 1481 | guint timer_tag; |
7b3621f4 | 1482 | guint open_tag; |
0ec7b3e7 | 1483 | } PtyChardev; |
6f97dba0 | 1484 | |
777357d7 MAL |
1485 | #define PTY_CHARDEV(obj) OBJECT_CHECK(PtyChardev, (obj), TYPE_CHARDEV_PTY) |
1486 | ||
0ec7b3e7 MAL |
1487 | static void pty_chr_update_read_handler_locked(Chardev *chr); |
1488 | static void pty_chr_state(Chardev *chr, int connected); | |
6f97dba0 | 1489 | |
8aa33caf AL |
1490 | static gboolean pty_chr_timer(gpointer opaque) |
1491 | { | |
777357d7 MAL |
1492 | struct Chardev *chr = CHARDEV(opaque); |
1493 | PtyChardev *s = PTY_CHARDEV(opaque); | |
8aa33caf | 1494 | |
9005b2a7 | 1495 | qemu_mutex_lock(&chr->chr_write_lock); |
79f20075 | 1496 | s->timer_tag = 0; |
7b3621f4 | 1497 | s->open_tag = 0; |
b0d768c3 GH |
1498 | if (!s->connected) { |
1499 | /* Next poll ... */ | |
9005b2a7 | 1500 | pty_chr_update_read_handler_locked(chr); |
b0d768c3 | 1501 | } |
9005b2a7 | 1502 | qemu_mutex_unlock(&chr->chr_write_lock); |
8aa33caf AL |
1503 | return FALSE; |
1504 | } | |
1505 | ||
9005b2a7 | 1506 | /* Called with chr_write_lock held. */ |
0ec7b3e7 | 1507 | static void pty_chr_rearm_timer(Chardev *chr, int ms) |
8aa33caf | 1508 | { |
777357d7 | 1509 | PtyChardev *s = PTY_CHARDEV(chr); |
e93a68e1 | 1510 | char *name; |
8aa33caf AL |
1511 | |
1512 | if (s->timer_tag) { | |
1513 | g_source_remove(s->timer_tag); | |
1514 | s->timer_tag = 0; | |
1515 | } | |
1516 | ||
1517 | if (ms == 1000) { | |
e93a68e1 | 1518 | name = g_strdup_printf("pty-timer-secs-%s", chr->label); |
8aa33caf AL |
1519 | s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr); |
1520 | } else { | |
e93a68e1 | 1521 | name = g_strdup_printf("pty-timer-ms-%s", chr->label); |
8aa33caf AL |
1522 | s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr); |
1523 | } | |
e93a68e1 DB |
1524 | g_source_set_name_by_id(s->timer_tag, name); |
1525 | g_free(name); | |
8aa33caf AL |
1526 | } |
1527 | ||
9005b2a7 | 1528 | /* Called with chr_write_lock held. */ |
0ec7b3e7 | 1529 | static void pty_chr_update_read_handler_locked(Chardev *chr) |
1bb7fe72 | 1530 | { |
777357d7 | 1531 | PtyChardev *s = PTY_CHARDEV(chr); |
1bb7fe72 | 1532 | GPollFD pfd; |
c1f24489 | 1533 | int rc; |
9894dc0c | 1534 | QIOChannelFile *fioc = QIO_CHANNEL_FILE(s->ioc); |
1bb7fe72 | 1535 | |
9894dc0c | 1536 | pfd.fd = fioc->fd; |
1bb7fe72 PB |
1537 | pfd.events = G_IO_OUT; |
1538 | pfd.revents = 0; | |
c1f24489 PB |
1539 | do { |
1540 | rc = g_poll(&pfd, 1, 0); | |
1541 | } while (rc == -1 && errno == EINTR); | |
1542 | assert(rc >= 0); | |
1543 | ||
1bb7fe72 PB |
1544 | if (pfd.revents & G_IO_HUP) { |
1545 | pty_chr_state(chr, 0); | |
1546 | } else { | |
1547 | pty_chr_state(chr, 1); | |
1548 | } | |
1549 | } | |
1550 | ||
0ec7b3e7 | 1551 | static void pty_chr_update_read_handler(Chardev *chr, |
a4afa548 | 1552 | GMainContext *context) |
9005b2a7 PB |
1553 | { |
1554 | qemu_mutex_lock(&chr->chr_write_lock); | |
1555 | pty_chr_update_read_handler_locked(chr); | |
1556 | qemu_mutex_unlock(&chr->chr_write_lock); | |
1557 | } | |
1558 | ||
1559 | /* Called with chr_write_lock held. */ | |
777357d7 | 1560 | static int char_pty_chr_write(Chardev *chr, const uint8_t *buf, int len) |
6f97dba0 | 1561 | { |
777357d7 | 1562 | PtyChardev *s = PTY_CHARDEV(chr); |
6f97dba0 AL |
1563 | |
1564 | if (!s->connected) { | |
1565 | /* guest sends data, check for (re-)connect */ | |
9005b2a7 | 1566 | pty_chr_update_read_handler_locked(chr); |
cf7330c7 ST |
1567 | if (!s->connected) { |
1568 | return 0; | |
1569 | } | |
6f97dba0 | 1570 | } |
9894dc0c | 1571 | return io_channel_send(s->ioc, buf, len); |
6f97dba0 AL |
1572 | } |
1573 | ||
0ec7b3e7 | 1574 | static GSource *pty_chr_add_watch(Chardev *chr, GIOCondition cond) |
e6a87ed8 | 1575 | { |
777357d7 | 1576 | PtyChardev *s = PTY_CHARDEV(chr); |
62c339c5 PB |
1577 | if (!s->connected) { |
1578 | return NULL; | |
1579 | } | |
9894dc0c | 1580 | return qio_channel_create_watch(s->ioc, cond); |
e6a87ed8 AL |
1581 | } |
1582 | ||
6f97dba0 AL |
1583 | static int pty_chr_read_poll(void *opaque) |
1584 | { | |
777357d7 MAL |
1585 | Chardev *chr = CHARDEV(opaque); |
1586 | PtyChardev *s = PTY_CHARDEV(opaque); | |
6f97dba0 | 1587 | |
909cda12 | 1588 | s->read_bytes = qemu_chr_be_can_write(chr); |
6f97dba0 AL |
1589 | return s->read_bytes; |
1590 | } | |
1591 | ||
9894dc0c | 1592 | static gboolean pty_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque) |
6f97dba0 | 1593 | { |
777357d7 MAL |
1594 | Chardev *chr = CHARDEV(opaque); |
1595 | PtyChardev *s = PTY_CHARDEV(opaque); | |
9894dc0c | 1596 | gsize len; |
9bd7854e | 1597 | uint8_t buf[READ_BUF_LEN]; |
9894dc0c | 1598 | ssize_t ret; |
6f97dba0 AL |
1599 | |
1600 | len = sizeof(buf); | |
1601 | if (len > s->read_bytes) | |
1602 | len = s->read_bytes; | |
cdbf6e16 PB |
1603 | if (len == 0) { |
1604 | return TRUE; | |
1605 | } | |
9894dc0c DB |
1606 | ret = qio_channel_read(s->ioc, (char *)buf, len, NULL); |
1607 | if (ret <= 0) { | |
6f97dba0 | 1608 | pty_chr_state(chr, 0); |
093d3a20 AL |
1609 | return FALSE; |
1610 | } else { | |
6f97dba0 | 1611 | pty_chr_state(chr, 1); |
9894dc0c | 1612 | qemu_chr_be_write(chr, buf, ret); |
6f97dba0 | 1613 | } |
093d3a20 | 1614 | return TRUE; |
6f97dba0 AL |
1615 | } |
1616 | ||
7b3621f4 PB |
1617 | static gboolean qemu_chr_be_generic_open_func(gpointer opaque) |
1618 | { | |
777357d7 MAL |
1619 | Chardev *chr = CHARDEV(opaque); |
1620 | PtyChardev *s = PTY_CHARDEV(opaque); | |
7b3621f4 PB |
1621 | |
1622 | s->open_tag = 0; | |
1623 | qemu_chr_be_generic_open(chr); | |
1624 | return FALSE; | |
1625 | } | |
1626 | ||
9005b2a7 | 1627 | /* Called with chr_write_lock held. */ |
0ec7b3e7 | 1628 | static void pty_chr_state(Chardev *chr, int connected) |
6f97dba0 | 1629 | { |
777357d7 | 1630 | PtyChardev *s = PTY_CHARDEV(chr); |
6f97dba0 AL |
1631 | |
1632 | if (!connected) { | |
7b3621f4 PB |
1633 | if (s->open_tag) { |
1634 | g_source_remove(s->open_tag); | |
1635 | s->open_tag = 0; | |
1636 | } | |
26da70c7 | 1637 | remove_fd_in_watch(chr); |
6f97dba0 | 1638 | s->connected = 0; |
6f97dba0 AL |
1639 | /* (re-)connect poll interval for idle guests: once per second. |
1640 | * We check more frequently in case the guests sends data to | |
1641 | * the virtual device linked to our pty. */ | |
8aa33caf | 1642 | pty_chr_rearm_timer(chr, 1000); |
6f97dba0 | 1643 | } else { |
85a67692 PB |
1644 | if (s->timer_tag) { |
1645 | g_source_remove(s->timer_tag); | |
1646 | s->timer_tag = 0; | |
1647 | } | |
1648 | if (!s->connected) { | |
7b3621f4 | 1649 | g_assert(s->open_tag == 0); |
85a67692 | 1650 | s->connected = 1; |
7b3621f4 | 1651 | s->open_tag = g_idle_add(qemu_chr_be_generic_open_func, chr); |
ac1b84dd GH |
1652 | } |
1653 | if (!chr->fd_in_tag) { | |
e93a68e1 | 1654 | chr->fd_in_tag = io_add_watch_poll(chr, s->ioc, |
9894dc0c | 1655 | pty_chr_read_poll, |
e92aa36a ZC |
1656 | pty_chr_read, |
1657 | chr, NULL); | |
85a67692 | 1658 | } |
6f97dba0 AL |
1659 | } |
1660 | } | |
1661 | ||
fa943b5e | 1662 | static void char_pty_finalize(Object *obj) |
6f97dba0 | 1663 | { |
fa943b5e MAL |
1664 | Chardev *chr = CHARDEV(obj); |
1665 | PtyChardev *s = PTY_CHARDEV(obj); | |
6f97dba0 | 1666 | |
7b3621f4 PB |
1667 | qemu_mutex_lock(&chr->chr_write_lock); |
1668 | pty_chr_state(chr, 0); | |
9894dc0c | 1669 | object_unref(OBJECT(s->ioc)); |
8aa33caf AL |
1670 | if (s->timer_tag) { |
1671 | g_source_remove(s->timer_tag); | |
910b6368 | 1672 | s->timer_tag = 0; |
8aa33caf | 1673 | } |
7b3621f4 | 1674 | qemu_mutex_unlock(&chr->chr_write_lock); |
a425d23f | 1675 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
6f97dba0 AL |
1676 | } |
1677 | ||
777357d7 MAL |
1678 | static void char_pty_open(Chardev *chr, |
1679 | ChardevBackend *backend, | |
1680 | bool *be_opened, | |
1681 | Error **errp) | |
6f97dba0 | 1682 | { |
0ec7b3e7 | 1683 | PtyChardev *s; |
e68c5958 | 1684 | int master_fd, slave_fd; |
6f97dba0 | 1685 | char pty_name[PATH_MAX]; |
e93a68e1 | 1686 | char *name; |
6f97dba0 | 1687 | |
4efeabbb MT |
1688 | master_fd = qemu_openpty_raw(&slave_fd, pty_name); |
1689 | if (master_fd < 0) { | |
c2e75a43 | 1690 | error_setg_errno(errp, errno, "Failed to create PTY"); |
777357d7 | 1691 | return; |
6f97dba0 AL |
1692 | } |
1693 | ||
837a183f | 1694 | close(slave_fd); |
fac6688a | 1695 | qemu_set_nonblock(master_fd); |
6f97dba0 | 1696 | |
4efeabbb | 1697 | chr->filename = g_strdup_printf("pty:%s", pty_name); |
776a32a0 | 1698 | error_report("char device redirected to %s (label %s)", |
777357d7 | 1699 | pty_name, chr->label); |
6f97dba0 | 1700 | |
777357d7 | 1701 | s = PTY_CHARDEV(chr); |
9894dc0c | 1702 | s->ioc = QIO_CHANNEL(qio_channel_file_new_fd(master_fd)); |
e93a68e1 DB |
1703 | name = g_strdup_printf("chardev-pty-%s", chr->label); |
1704 | qio_channel_set_name(QIO_CHANNEL(s->ioc), name); | |
1705 | g_free(name); | |
8aa33caf | 1706 | s->timer_tag = 0; |
41ac54b2 | 1707 | *be_opened = false; |
6f97dba0 AL |
1708 | } |
1709 | ||
b68e956a MAL |
1710 | static const CharDriver pty_driver = { |
1711 | .kind = CHARDEV_BACKEND_KIND_PTY, | |
777357d7 MAL |
1712 | }; |
1713 | ||
1714 | static void char_pty_class_init(ObjectClass *oc, void *data) | |
1715 | { | |
1716 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
1717 | ||
1718 | cc->open = char_pty_open; | |
1719 | cc->chr_write = char_pty_chr_write; | |
1720 | cc->chr_update_read_handler = pty_chr_update_read_handler; | |
1721 | cc->chr_add_watch = pty_chr_add_watch; | |
777357d7 MAL |
1722 | } |
1723 | ||
1724 | static const TypeInfo char_pty_type_info = { | |
1725 | .name = TYPE_CHARDEV_PTY, | |
1726 | .parent = TYPE_CHARDEV, | |
1727 | .instance_size = sizeof(PtyChardev), | |
fa943b5e | 1728 | .instance_finalize = char_pty_finalize, |
777357d7 | 1729 | .class_init = char_pty_class_init, |
b68e956a MAL |
1730 | }; |
1731 | ||
6f97dba0 AL |
1732 | static void tty_serial_init(int fd, int speed, |
1733 | int parity, int data_bits, int stop_bits) | |
1734 | { | |
1735 | struct termios tty; | |
1736 | speed_t spd; | |
1737 | ||
1738 | #if 0 | |
1739 | printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n", | |
1740 | speed, parity, data_bits, stop_bits); | |
1741 | #endif | |
1742 | tcgetattr (fd, &tty); | |
1743 | ||
45eea13b SW |
1744 | #define check_speed(val) if (speed <= val) { spd = B##val; break; } |
1745 | speed = speed * 10 / 11; | |
1746 | do { | |
1747 | check_speed(50); | |
1748 | check_speed(75); | |
1749 | check_speed(110); | |
1750 | check_speed(134); | |
1751 | check_speed(150); | |
1752 | check_speed(200); | |
1753 | check_speed(300); | |
1754 | check_speed(600); | |
1755 | check_speed(1200); | |
1756 | check_speed(1800); | |
1757 | check_speed(2400); | |
1758 | check_speed(4800); | |
1759 | check_speed(9600); | |
1760 | check_speed(19200); | |
1761 | check_speed(38400); | |
1762 | /* Non-Posix values follow. They may be unsupported on some systems. */ | |
1763 | check_speed(57600); | |
1764 | check_speed(115200); | |
1765 | #ifdef B230400 | |
1766 | check_speed(230400); | |
1767 | #endif | |
1768 | #ifdef B460800 | |
1769 | check_speed(460800); | |
1770 | #endif | |
1771 | #ifdef B500000 | |
1772 | check_speed(500000); | |
1773 | #endif | |
1774 | #ifdef B576000 | |
1775 | check_speed(576000); | |
1776 | #endif | |
1777 | #ifdef B921600 | |
1778 | check_speed(921600); | |
1779 | #endif | |
1780 | #ifdef B1000000 | |
1781 | check_speed(1000000); | |
1782 | #endif | |
1783 | #ifdef B1152000 | |
1784 | check_speed(1152000); | |
1785 | #endif | |
1786 | #ifdef B1500000 | |
1787 | check_speed(1500000); | |
1788 | #endif | |
1789 | #ifdef B2000000 | |
1790 | check_speed(2000000); | |
1791 | #endif | |
1792 | #ifdef B2500000 | |
1793 | check_speed(2500000); | |
1794 | #endif | |
1795 | #ifdef B3000000 | |
1796 | check_speed(3000000); | |
1797 | #endif | |
1798 | #ifdef B3500000 | |
1799 | check_speed(3500000); | |
1800 | #endif | |
1801 | #ifdef B4000000 | |
1802 | check_speed(4000000); | |
1803 | #endif | |
6f97dba0 | 1804 | spd = B115200; |
45eea13b | 1805 | } while (0); |
6f97dba0 AL |
1806 | |
1807 | cfsetispeed(&tty, spd); | |
1808 | cfsetospeed(&tty, spd); | |
1809 | ||
1810 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP | |
1811 | |INLCR|IGNCR|ICRNL|IXON); | |
1812 | tty.c_oflag |= OPOST; | |
1813 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); | |
1814 | tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); | |
1815 | switch(data_bits) { | |
1816 | default: | |
1817 | case 8: | |
1818 | tty.c_cflag |= CS8; | |
1819 | break; | |
1820 | case 7: | |
1821 | tty.c_cflag |= CS7; | |
1822 | break; | |
1823 | case 6: | |
1824 | tty.c_cflag |= CS6; | |
1825 | break; | |
1826 | case 5: | |
1827 | tty.c_cflag |= CS5; | |
1828 | break; | |
1829 | } | |
1830 | switch(parity) { | |
1831 | default: | |
1832 | case 'N': | |
1833 | break; | |
1834 | case 'E': | |
1835 | tty.c_cflag |= PARENB; | |
1836 | break; | |
1837 | case 'O': | |
1838 | tty.c_cflag |= PARENB | PARODD; | |
1839 | break; | |
1840 | } | |
1841 | if (stop_bits == 2) | |
1842 | tty.c_cflag |= CSTOPB; | |
1843 | ||
1844 | tcsetattr (fd, TCSANOW, &tty); | |
1845 | } | |
1846 | ||
0ec7b3e7 | 1847 | static int tty_serial_ioctl(Chardev *chr, int cmd, void *arg) |
6f97dba0 | 1848 | { |
777357d7 | 1849 | FDChardev *s = FD_CHARDEV(chr); |
9894dc0c | 1850 | QIOChannelFile *fioc = QIO_CHANNEL_FILE(s->ioc_in); |
6f97dba0 AL |
1851 | |
1852 | switch(cmd) { | |
1853 | case CHR_IOCTL_SERIAL_SET_PARAMS: | |
1854 | { | |
1855 | QEMUSerialSetParams *ssp = arg; | |
9894dc0c | 1856 | tty_serial_init(fioc->fd, |
a29753f8 | 1857 | ssp->speed, ssp->parity, |
6f97dba0 AL |
1858 | ssp->data_bits, ssp->stop_bits); |
1859 | } | |
1860 | break; | |
1861 | case CHR_IOCTL_SERIAL_SET_BREAK: | |
1862 | { | |
1863 | int enable = *(int *)arg; | |
a29753f8 | 1864 | if (enable) { |
9894dc0c | 1865 | tcsendbreak(fioc->fd, 1); |
a29753f8 | 1866 | } |
6f97dba0 AL |
1867 | } |
1868 | break; | |
1869 | case CHR_IOCTL_SERIAL_GET_TIOCM: | |
1870 | { | |
1871 | int sarg = 0; | |
1872 | int *targ = (int *)arg; | |
9894dc0c | 1873 | ioctl(fioc->fd, TIOCMGET, &sarg); |
6f97dba0 | 1874 | *targ = 0; |
b4abdfa4 | 1875 | if (sarg & TIOCM_CTS) |
6f97dba0 | 1876 | *targ |= CHR_TIOCM_CTS; |
b4abdfa4 | 1877 | if (sarg & TIOCM_CAR) |
6f97dba0 | 1878 | *targ |= CHR_TIOCM_CAR; |
b4abdfa4 | 1879 | if (sarg & TIOCM_DSR) |
6f97dba0 | 1880 | *targ |= CHR_TIOCM_DSR; |
b4abdfa4 | 1881 | if (sarg & TIOCM_RI) |
6f97dba0 | 1882 | *targ |= CHR_TIOCM_RI; |
b4abdfa4 | 1883 | if (sarg & TIOCM_DTR) |
6f97dba0 | 1884 | *targ |= CHR_TIOCM_DTR; |
b4abdfa4 | 1885 | if (sarg & TIOCM_RTS) |
6f97dba0 AL |
1886 | *targ |= CHR_TIOCM_RTS; |
1887 | } | |
1888 | break; | |
1889 | case CHR_IOCTL_SERIAL_SET_TIOCM: | |
1890 | { | |
1891 | int sarg = *(int *)arg; | |
1892 | int targ = 0; | |
9894dc0c | 1893 | ioctl(fioc->fd, TIOCMGET, &targ); |
b4abdfa4 AJ |
1894 | targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR |
1895 | | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); | |
1896 | if (sarg & CHR_TIOCM_CTS) | |
1897 | targ |= TIOCM_CTS; | |
1898 | if (sarg & CHR_TIOCM_CAR) | |
1899 | targ |= TIOCM_CAR; | |
1900 | if (sarg & CHR_TIOCM_DSR) | |
1901 | targ |= TIOCM_DSR; | |
1902 | if (sarg & CHR_TIOCM_RI) | |
1903 | targ |= TIOCM_RI; | |
1904 | if (sarg & CHR_TIOCM_DTR) | |
6f97dba0 | 1905 | targ |= TIOCM_DTR; |
b4abdfa4 | 1906 | if (sarg & CHR_TIOCM_RTS) |
6f97dba0 | 1907 | targ |= TIOCM_RTS; |
9894dc0c | 1908 | ioctl(fioc->fd, TIOCMSET, &targ); |
6f97dba0 AL |
1909 | } |
1910 | break; | |
1911 | default: | |
1912 | return -ENOTSUP; | |
1913 | } | |
1914 | return 0; | |
1915 | } | |
6f97dba0 AL |
1916 | #endif /* __linux__ || __sun__ */ |
1917 | ||
1918 | #if defined(__linux__) | |
e551498e GH |
1919 | |
1920 | #define HAVE_CHARDEV_PARPORT 1 | |
1921 | ||
6f97dba0 | 1922 | typedef struct { |
0ec7b3e7 | 1923 | Chardev parent; |
6f97dba0 AL |
1924 | int fd; |
1925 | int mode; | |
0ec7b3e7 | 1926 | } ParallelChardev; |
6f97dba0 | 1927 | |
777357d7 MAL |
1928 | #define PARALLEL_CHARDEV(obj) \ |
1929 | OBJECT_CHECK(ParallelChardev, (obj), TYPE_CHARDEV_PARALLEL) | |
1930 | ||
0ec7b3e7 | 1931 | static int pp_hw_mode(ParallelChardev *s, uint16_t mode) |
6f97dba0 AL |
1932 | { |
1933 | if (s->mode != mode) { | |
1934 | int m = mode; | |
1935 | if (ioctl(s->fd, PPSETMODE, &m) < 0) | |
1936 | return 0; | |
1937 | s->mode = mode; | |
1938 | } | |
1939 | return 1; | |
1940 | } | |
1941 | ||
0ec7b3e7 | 1942 | static int pp_ioctl(Chardev *chr, int cmd, void *arg) |
6f97dba0 | 1943 | { |
777357d7 | 1944 | ParallelChardev *drv = PARALLEL_CHARDEV(chr); |
6f97dba0 AL |
1945 | int fd = drv->fd; |
1946 | uint8_t b; | |
1947 | ||
1948 | switch(cmd) { | |
1949 | case CHR_IOCTL_PP_READ_DATA: | |
1950 | if (ioctl(fd, PPRDATA, &b) < 0) | |
1951 | return -ENOTSUP; | |
1952 | *(uint8_t *)arg = b; | |
1953 | break; | |
1954 | case CHR_IOCTL_PP_WRITE_DATA: | |
1955 | b = *(uint8_t *)arg; | |
1956 | if (ioctl(fd, PPWDATA, &b) < 0) | |
1957 | return -ENOTSUP; | |
1958 | break; | |
1959 | case CHR_IOCTL_PP_READ_CONTROL: | |
1960 | if (ioctl(fd, PPRCONTROL, &b) < 0) | |
1961 | return -ENOTSUP; | |
1962 | /* Linux gives only the lowest bits, and no way to know data | |
1963 | direction! For better compatibility set the fixed upper | |
1964 | bits. */ | |
1965 | *(uint8_t *)arg = b | 0xc0; | |
1966 | break; | |
1967 | case CHR_IOCTL_PP_WRITE_CONTROL: | |
1968 | b = *(uint8_t *)arg; | |
1969 | if (ioctl(fd, PPWCONTROL, &b) < 0) | |
1970 | return -ENOTSUP; | |
1971 | break; | |
1972 | case CHR_IOCTL_PP_READ_STATUS: | |
1973 | if (ioctl(fd, PPRSTATUS, &b) < 0) | |
1974 | return -ENOTSUP; | |
1975 | *(uint8_t *)arg = b; | |
1976 | break; | |
1977 | case CHR_IOCTL_PP_DATA_DIR: | |
1978 | if (ioctl(fd, PPDATADIR, (int *)arg) < 0) | |
1979 | return -ENOTSUP; | |
1980 | break; | |
1981 | case CHR_IOCTL_PP_EPP_READ_ADDR: | |
1982 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) { | |
1983 | struct ParallelIOArg *parg = arg; | |
1984 | int n = read(fd, parg->buffer, parg->count); | |
1985 | if (n != parg->count) { | |
1986 | return -EIO; | |
1987 | } | |
1988 | } | |
1989 | break; | |
1990 | case CHR_IOCTL_PP_EPP_READ: | |
1991 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) { | |
1992 | struct ParallelIOArg *parg = arg; | |
1993 | int n = read(fd, parg->buffer, parg->count); | |
1994 | if (n != parg->count) { | |
1995 | return -EIO; | |
1996 | } | |
1997 | } | |
1998 | break; | |
1999 | case CHR_IOCTL_PP_EPP_WRITE_ADDR: | |
2000 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) { | |
2001 | struct ParallelIOArg *parg = arg; | |
2002 | int n = write(fd, parg->buffer, parg->count); | |
2003 | if (n != parg->count) { | |
2004 | return -EIO; | |
2005 | } | |
2006 | } | |
2007 | break; | |
2008 | case CHR_IOCTL_PP_EPP_WRITE: | |
2009 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) { | |
2010 | struct ParallelIOArg *parg = arg; | |
2011 | int n = write(fd, parg->buffer, parg->count); | |
2012 | if (n != parg->count) { | |
2013 | return -EIO; | |
2014 | } | |
2015 | } | |
2016 | break; | |
2017 | default: | |
2018 | return -ENOTSUP; | |
2019 | } | |
2020 | return 0; | |
2021 | } | |
2022 | ||
777357d7 MAL |
2023 | static void qemu_chr_open_pp_fd(Chardev *chr, |
2024 | int fd, | |
2025 | bool *be_opened, | |
2026 | Error **errp) | |
6f97dba0 | 2027 | { |
777357d7 | 2028 | ParallelChardev *drv = PARALLEL_CHARDEV(chr); |
6f97dba0 AL |
2029 | |
2030 | if (ioctl(fd, PPCLAIM) < 0) { | |
38bfb1a6 | 2031 | error_setg_errno(errp, errno, "not a parallel port"); |
6f97dba0 | 2032 | close(fd); |
777357d7 | 2033 | return; |
d0d7708b | 2034 | } |
27ef9cb0 | 2035 | |
27ef9cb0 PB |
2036 | drv->fd = fd; |
2037 | drv->mode = IEEE1284_MODE_COMPAT; | |
6f97dba0 AL |
2038 | } |
2039 | #endif /* __linux__ */ | |
2040 | ||
a167ba50 | 2041 | #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) |
e551498e GH |
2042 | |
2043 | #define HAVE_CHARDEV_PARPORT 1 | |
2044 | ||
41ac54b2 | 2045 | typedef struct { |
0ec7b3e7 | 2046 | Chardev parent; |
41ac54b2 | 2047 | int fd; |
0ec7b3e7 | 2048 | } ParallelChardev; |
41ac54b2 | 2049 | |
777357d7 MAL |
2050 | #define PARALLEL_CHARDEV(obj) \ |
2051 | OBJECT_CHECK(ParallelChardev, (obj), TYPE_CHARDEV_PARALLEL) | |
2052 | ||
0ec7b3e7 | 2053 | static int pp_ioctl(Chardev *chr, int cmd, void *arg) |
6972f935 | 2054 | { |
777357d7 | 2055 | ParallelChardev *drv = PARALLEL_CHARDEV(chr); |
6972f935 BS |
2056 | uint8_t b; |
2057 | ||
41ac54b2 | 2058 | switch (cmd) { |
6972f935 | 2059 | case CHR_IOCTL_PP_READ_DATA: |
41ac54b2 | 2060 | if (ioctl(drv->fd, PPIGDATA, &b) < 0) { |
6972f935 | 2061 | return -ENOTSUP; |
41ac54b2 | 2062 | } |
6972f935 BS |
2063 | *(uint8_t *)arg = b; |
2064 | break; | |
2065 | case CHR_IOCTL_PP_WRITE_DATA: | |
2066 | b = *(uint8_t *)arg; | |
41ac54b2 | 2067 | if (ioctl(drv->fd, PPISDATA, &b) < 0) { |
6972f935 | 2068 | return -ENOTSUP; |
41ac54b2 | 2069 | } |
6972f935 BS |
2070 | break; |
2071 | case CHR_IOCTL_PP_READ_CONTROL: | |
41ac54b2 | 2072 | if (ioctl(drv->fd, PPIGCTRL, &b) < 0) { |
6972f935 | 2073 | return -ENOTSUP; |
41ac54b2 | 2074 | } |
6972f935 BS |
2075 | *(uint8_t *)arg = b; |
2076 | break; | |
2077 | case CHR_IOCTL_PP_WRITE_CONTROL: | |
2078 | b = *(uint8_t *)arg; | |
41ac54b2 | 2079 | if (ioctl(drv->fd, PPISCTRL, &b) < 0) { |
6972f935 | 2080 | return -ENOTSUP; |
41ac54b2 | 2081 | } |
6972f935 BS |
2082 | break; |
2083 | case CHR_IOCTL_PP_READ_STATUS: | |
41ac54b2 | 2084 | if (ioctl(drv->fd, PPIGSTATUS, &b) < 0) { |
6972f935 | 2085 | return -ENOTSUP; |
41ac54b2 | 2086 | } |
6972f935 BS |
2087 | *(uint8_t *)arg = b; |
2088 | break; | |
2089 | default: | |
2090 | return -ENOTSUP; | |
2091 | } | |
2092 | return 0; | |
2093 | } | |
2094 | ||
777357d7 MAL |
2095 | static void qemu_chr_open_pp_fd(Chardev *chr, |
2096 | int fd, | |
2097 | bool *be_opened, | |
2098 | Error **errp) | |
6972f935 | 2099 | { |
777357d7 | 2100 | ParallelChardev *drv = PARALLEL_CHARDEV(chr); |
41ac54b2 | 2101 | drv->fd = fd; |
82878dac | 2102 | *be_opened = false; |
6972f935 BS |
2103 | } |
2104 | #endif | |
2105 | ||
6f97dba0 AL |
2106 | #else /* _WIN32 */ |
2107 | ||
d809ab95 PB |
2108 | #define HAVE_CHARDEV_SERIAL 1 |
2109 | ||
6f97dba0 | 2110 | typedef struct { |
0ec7b3e7 | 2111 | Chardev parent; |
6f97dba0 AL |
2112 | int max_size; |
2113 | HANDLE hcom, hrecv, hsend; | |
9005b2a7 | 2114 | OVERLAPPED orecv; |
6f97dba0 AL |
2115 | BOOL fpipe; |
2116 | DWORD len; | |
9005b2a7 | 2117 | |
0ec7b3e7 | 2118 | /* Protected by the Chardev chr_write_lock. */ |
9005b2a7 | 2119 | OVERLAPPED osend; |
c266d94e MAL |
2120 | /* FIXME: file/console do not finalize */ |
2121 | bool skip_free; | |
0ec7b3e7 | 2122 | } WinChardev; |
6f97dba0 | 2123 | |
777357d7 MAL |
2124 | #define TYPE_CHARDEV_WIN "chardev-win" |
2125 | #define WIN_CHARDEV(obj) OBJECT_CHECK(WinChardev, (obj), TYPE_CHARDEV_WIN) | |
2126 | ||
db418a0a | 2127 | typedef struct { |
0ec7b3e7 | 2128 | Chardev parent; |
db418a0a FC |
2129 | HANDLE hStdIn; |
2130 | HANDLE hInputReadyEvent; | |
2131 | HANDLE hInputDoneEvent; | |
2132 | HANDLE hInputThread; | |
2133 | uint8_t win_stdio_buf; | |
0ec7b3e7 | 2134 | } WinStdioChardev; |
db418a0a | 2135 | |
777357d7 MAL |
2136 | #define TYPE_CHARDEV_WIN_STDIO "chardev-win-stdio" |
2137 | #define WIN_STDIO_CHARDEV(obj) \ | |
2138 | OBJECT_CHECK(WinStdioChardev, (obj), TYPE_CHARDEV_WIN_STDIO) | |
2139 | ||
6f97dba0 AL |
2140 | #define NSENDBUF 2048 |
2141 | #define NRECVBUF 2048 | |
2142 | #define MAXCONNECT 1 | |
2143 | #define NTIMEOUT 5000 | |
2144 | ||
2145 | static int win_chr_poll(void *opaque); | |
2146 | static int win_chr_pipe_poll(void *opaque); | |
2147 | ||
53a5736f | 2148 | static void char_win_finalize(Object *obj) |
6f97dba0 | 2149 | { |
53a5736f | 2150 | Chardev *chr = CHARDEV(obj); |
777357d7 | 2151 | WinChardev *s = WIN_CHARDEV(chr); |
6f97dba0 | 2152 | |
c266d94e MAL |
2153 | if (s->skip_free) { |
2154 | return; | |
2155 | } | |
2156 | ||
6f97dba0 AL |
2157 | if (s->hsend) { |
2158 | CloseHandle(s->hsend); | |
6f97dba0 AL |
2159 | } |
2160 | if (s->hrecv) { | |
2161 | CloseHandle(s->hrecv); | |
6f97dba0 AL |
2162 | } |
2163 | if (s->hcom) { | |
2164 | CloseHandle(s->hcom); | |
6f97dba0 AL |
2165 | } |
2166 | if (s->fpipe) | |
2167 | qemu_del_polling_cb(win_chr_pipe_poll, chr); | |
2168 | else | |
2169 | qemu_del_polling_cb(win_chr_poll, chr); | |
793cbfb5 | 2170 | |
a425d23f | 2171 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
6f97dba0 AL |
2172 | } |
2173 | ||
0ec7b3e7 | 2174 | static int win_chr_init(Chardev *chr, const char *filename, Error **errp) |
6f97dba0 | 2175 | { |
777357d7 | 2176 | WinChardev *s = WIN_CHARDEV(chr); |
6f97dba0 AL |
2177 | COMMCONFIG comcfg; |
2178 | COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; | |
2179 | COMSTAT comstat; | |
2180 | DWORD size; | |
2181 | DWORD err; | |
2182 | ||
2183 | s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); | |
2184 | if (!s->hsend) { | |
6511d396 | 2185 | error_setg(errp, "Failed CreateEvent"); |
6f97dba0 AL |
2186 | goto fail; |
2187 | } | |
2188 | s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); | |
2189 | if (!s->hrecv) { | |
6511d396 | 2190 | error_setg(errp, "Failed CreateEvent"); |
6f97dba0 AL |
2191 | goto fail; |
2192 | } | |
2193 | ||
2194 | s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, | |
2195 | OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0); | |
2196 | if (s->hcom == INVALID_HANDLE_VALUE) { | |
6511d396 | 2197 | error_setg(errp, "Failed CreateFile (%lu)", GetLastError()); |
6f97dba0 AL |
2198 | s->hcom = NULL; |
2199 | goto fail; | |
2200 | } | |
2201 | ||
2202 | if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) { | |
6511d396 | 2203 | error_setg(errp, "Failed SetupComm"); |
6f97dba0 AL |
2204 | goto fail; |
2205 | } | |
2206 | ||
2207 | ZeroMemory(&comcfg, sizeof(COMMCONFIG)); | |
2208 | size = sizeof(COMMCONFIG); | |
2209 | GetDefaultCommConfig(filename, &comcfg, &size); | |
2210 | comcfg.dcb.DCBlength = sizeof(DCB); | |
2211 | CommConfigDialog(filename, NULL, &comcfg); | |
2212 | ||
2213 | if (!SetCommState(s->hcom, &comcfg.dcb)) { | |
6511d396 | 2214 | error_setg(errp, "Failed SetCommState"); |
6f97dba0 AL |
2215 | goto fail; |
2216 | } | |
2217 | ||
2218 | if (!SetCommMask(s->hcom, EV_ERR)) { | |
6511d396 | 2219 | error_setg(errp, "Failed SetCommMask"); |
6f97dba0 AL |
2220 | goto fail; |
2221 | } | |
2222 | ||
2223 | cto.ReadIntervalTimeout = MAXDWORD; | |
2224 | if (!SetCommTimeouts(s->hcom, &cto)) { | |
6511d396 | 2225 | error_setg(errp, "Failed SetCommTimeouts"); |
6f97dba0 AL |
2226 | goto fail; |
2227 | } | |
2228 | ||
2229 | if (!ClearCommError(s->hcom, &err, &comstat)) { | |
6511d396 | 2230 | error_setg(errp, "Failed ClearCommError"); |
6f97dba0 AL |
2231 | goto fail; |
2232 | } | |
2233 | qemu_add_polling_cb(win_chr_poll, chr); | |
2234 | return 0; | |
2235 | ||
2236 | fail: | |
6f97dba0 AL |
2237 | return -1; |
2238 | } | |
2239 | ||
9005b2a7 | 2240 | /* Called with chr_write_lock held. */ |
0ec7b3e7 | 2241 | static int win_chr_write(Chardev *chr, const uint8_t *buf, int len1) |
6f97dba0 | 2242 | { |
777357d7 | 2243 | WinChardev *s = WIN_CHARDEV(chr); |
6f97dba0 AL |
2244 | DWORD len, ret, size, err; |
2245 | ||
2246 | len = len1; | |
2247 | ZeroMemory(&s->osend, sizeof(s->osend)); | |
2248 | s->osend.hEvent = s->hsend; | |
2249 | while (len > 0) { | |
2250 | if (s->hsend) | |
2251 | ret = WriteFile(s->hcom, buf, len, &size, &s->osend); | |
2252 | else | |
2253 | ret = WriteFile(s->hcom, buf, len, &size, NULL); | |
2254 | if (!ret) { | |
2255 | err = GetLastError(); | |
2256 | if (err == ERROR_IO_PENDING) { | |
2257 | ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); | |
2258 | if (ret) { | |
2259 | buf += size; | |
2260 | len -= size; | |
2261 | } else { | |
2262 | break; | |
2263 | } | |
2264 | } else { | |
2265 | break; | |
2266 | } | |
2267 | } else { | |
2268 | buf += size; | |
2269 | len -= size; | |
2270 | } | |
2271 | } | |
2272 | return len1 - len; | |
2273 | } | |
2274 | ||
0ec7b3e7 | 2275 | static int win_chr_read_poll(Chardev *chr) |
6f97dba0 | 2276 | { |
777357d7 | 2277 | WinChardev *s = WIN_CHARDEV(chr); |
6f97dba0 | 2278 | |
909cda12 | 2279 | s->max_size = qemu_chr_be_can_write(chr); |
6f97dba0 AL |
2280 | return s->max_size; |
2281 | } | |
2282 | ||
0ec7b3e7 | 2283 | static void win_chr_readfile(Chardev *chr) |
6f97dba0 | 2284 | { |
777357d7 MAL |
2285 | WinChardev *s = WIN_CHARDEV(chr); |
2286 | ||
6f97dba0 | 2287 | int ret, err; |
9bd7854e | 2288 | uint8_t buf[READ_BUF_LEN]; |
6f97dba0 AL |
2289 | DWORD size; |
2290 | ||
2291 | ZeroMemory(&s->orecv, sizeof(s->orecv)); | |
2292 | s->orecv.hEvent = s->hrecv; | |
2293 | ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); | |
2294 | if (!ret) { | |
2295 | err = GetLastError(); | |
2296 | if (err == ERROR_IO_PENDING) { | |
2297 | ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); | |
2298 | } | |
2299 | } | |
2300 | ||
2301 | if (size > 0) { | |
fa5efccb | 2302 | qemu_chr_be_write(chr, buf, size); |
6f97dba0 AL |
2303 | } |
2304 | } | |
2305 | ||
0ec7b3e7 | 2306 | static void win_chr_read(Chardev *chr) |
6f97dba0 | 2307 | { |
777357d7 | 2308 | WinChardev *s = WIN_CHARDEV(chr); |
6f97dba0 AL |
2309 | |
2310 | if (s->len > s->max_size) | |
2311 | s->len = s->max_size; | |
2312 | if (s->len == 0) | |
2313 | return; | |
2314 | ||
2315 | win_chr_readfile(chr); | |
2316 | } | |
2317 | ||
2318 | static int win_chr_poll(void *opaque) | |
2319 | { | |
777357d7 MAL |
2320 | Chardev *chr = CHARDEV(opaque); |
2321 | WinChardev *s = WIN_CHARDEV(opaque); | |
6f97dba0 AL |
2322 | COMSTAT status; |
2323 | DWORD comerr; | |
2324 | ||
2325 | ClearCommError(s->hcom, &comerr, &status); | |
2326 | if (status.cbInQue > 0) { | |
2327 | s->len = status.cbInQue; | |
2328 | win_chr_read_poll(chr); | |
2329 | win_chr_read(chr); | |
2330 | return 1; | |
2331 | } | |
2332 | return 0; | |
2333 | } | |
2334 | ||
6f97dba0 AL |
2335 | static int win_chr_pipe_poll(void *opaque) |
2336 | { | |
777357d7 MAL |
2337 | Chardev *chr = CHARDEV(opaque); |
2338 | WinChardev *s = WIN_CHARDEV(opaque); | |
6f97dba0 AL |
2339 | DWORD size; |
2340 | ||
2341 | PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); | |
2342 | if (size > 0) { | |
2343 | s->len = size; | |
2344 | win_chr_read_poll(chr); | |
2345 | win_chr_read(chr); | |
2346 | return 1; | |
2347 | } | |
2348 | return 0; | |
2349 | } | |
2350 | ||
0ec7b3e7 | 2351 | static int win_chr_pipe_init(Chardev *chr, const char *filename, |
20cbe7a2 | 2352 | Error **errp) |
6f97dba0 | 2353 | { |
777357d7 | 2354 | WinChardev *s = WIN_CHARDEV(chr); |
6f97dba0 AL |
2355 | OVERLAPPED ov; |
2356 | int ret; | |
2357 | DWORD size; | |
0ff0fad2 | 2358 | char *openname; |
6f97dba0 AL |
2359 | |
2360 | s->fpipe = TRUE; | |
2361 | ||
2362 | s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); | |
2363 | if (!s->hsend) { | |
20cbe7a2 | 2364 | error_setg(errp, "Failed CreateEvent"); |
6f97dba0 AL |
2365 | goto fail; |
2366 | } | |
2367 | s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); | |
2368 | if (!s->hrecv) { | |
20cbe7a2 | 2369 | error_setg(errp, "Failed CreateEvent"); |
6f97dba0 AL |
2370 | goto fail; |
2371 | } | |
2372 | ||
0ff0fad2 | 2373 | openname = g_strdup_printf("\\\\.\\pipe\\%s", filename); |
6f97dba0 AL |
2374 | s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
2375 | PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | | |
2376 | PIPE_WAIT, | |
2377 | MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL); | |
0ff0fad2 | 2378 | g_free(openname); |
6f97dba0 | 2379 | if (s->hcom == INVALID_HANDLE_VALUE) { |
20cbe7a2 | 2380 | error_setg(errp, "Failed CreateNamedPipe (%lu)", GetLastError()); |
6f97dba0 AL |
2381 | s->hcom = NULL; |
2382 | goto fail; | |
2383 | } | |
2384 | ||
2385 | ZeroMemory(&ov, sizeof(ov)); | |
2386 | ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); | |
2387 | ret = ConnectNamedPipe(s->hcom, &ov); | |
2388 | if (ret) { | |
20cbe7a2 | 2389 | error_setg(errp, "Failed ConnectNamedPipe"); |
6f97dba0 AL |
2390 | goto fail; |
2391 | } | |
2392 | ||
2393 | ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); | |
2394 | if (!ret) { | |
20cbe7a2 | 2395 | error_setg(errp, "Failed GetOverlappedResult"); |
6f97dba0 AL |
2396 | if (ov.hEvent) { |
2397 | CloseHandle(ov.hEvent); | |
2398 | ov.hEvent = NULL; | |
2399 | } | |
2400 | goto fail; | |
2401 | } | |
2402 | ||
2403 | if (ov.hEvent) { | |
2404 | CloseHandle(ov.hEvent); | |
2405 | ov.hEvent = NULL; | |
2406 | } | |
2407 | qemu_add_polling_cb(win_chr_pipe_poll, chr); | |
2408 | return 0; | |
2409 | ||
2410 | fail: | |
6f97dba0 AL |
2411 | return -1; |
2412 | } | |
2413 | ||
2414 | ||
777357d7 MAL |
2415 | static void qemu_chr_open_pipe(Chardev *chr, |
2416 | ChardevBackend *backend, | |
2417 | bool *be_opened, | |
2418 | Error **errp) | |
6f97dba0 | 2419 | { |
32bafa8f | 2420 | ChardevHostdev *opts = backend->u.pipe.data; |
548cbb36 | 2421 | const char *filename = opts->device; |
6f97dba0 | 2422 | |
20cbe7a2 | 2423 | if (win_chr_pipe_init(chr, filename, errp) < 0) { |
777357d7 | 2424 | return; |
6f97dba0 | 2425 | } |
6f97dba0 AL |
2426 | } |
2427 | ||
777357d7 | 2428 | static void qemu_chr_open_win_file(Chardev *chr, HANDLE fd_out) |
6f97dba0 | 2429 | { |
777357d7 | 2430 | WinChardev *s = WIN_CHARDEV(chr); |
6f97dba0 | 2431 | |
c266d94e | 2432 | s->skip_free = true; |
6f97dba0 | 2433 | s->hcom = fd_out; |
6f97dba0 AL |
2434 | } |
2435 | ||
777357d7 | 2436 | static void char_win_class_init(ObjectClass *oc, void *data) |
6f97dba0 | 2437 | { |
777357d7 MAL |
2438 | ChardevClass *cc = CHARDEV_CLASS(oc); |
2439 | ||
2440 | cc->chr_write = win_chr_write; | |
6f97dba0 AL |
2441 | } |
2442 | ||
777357d7 MAL |
2443 | static const TypeInfo char_win_type_info = { |
2444 | .name = TYPE_CHARDEV_WIN, | |
2445 | .parent = TYPE_CHARDEV, | |
0ec7b3e7 | 2446 | .instance_size = sizeof(WinChardev), |
53a5736f | 2447 | .instance_finalize = char_win_finalize, |
777357d7 MAL |
2448 | .class_init = char_win_class_init, |
2449 | .abstract = true, | |
2450 | }; | |
2451 | ||
2452 | static void qemu_chr_open_win_con(Chardev *chr, | |
2453 | ChardevBackend *backend, | |
2454 | bool *be_opened, | |
2455 | Error **errp) | |
2456 | { | |
2457 | qemu_chr_open_win_file(chr, GetStdHandle(STD_OUTPUT_HANDLE)); | |
2458 | } | |
2459 | ||
2460 | static const CharDriver console_driver = { | |
b68e956a | 2461 | .kind = CHARDEV_BACKEND_KIND_CONSOLE, |
777357d7 MAL |
2462 | }; |
2463 | ||
2464 | static void char_console_class_init(ObjectClass *oc, void *data) | |
2465 | { | |
2466 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
2467 | ||
2468 | cc->open = qemu_chr_open_win_con; | |
777357d7 MAL |
2469 | } |
2470 | ||
2471 | static const TypeInfo char_console_type_info = { | |
2472 | .name = TYPE_CHARDEV_CONSOLE, | |
2473 | .parent = TYPE_CHARDEV_WIN, | |
2474 | .class_init = char_console_class_init, | |
b68e956a MAL |
2475 | }; |
2476 | ||
0ec7b3e7 | 2477 | static int win_stdio_write(Chardev *chr, const uint8_t *buf, int len) |
db418a0a FC |
2478 | { |
2479 | HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE); | |
2480 | DWORD dwSize; | |
2481 | int len1; | |
2482 | ||
2483 | len1 = len; | |
2484 | ||
2485 | while (len1 > 0) { | |
2486 | if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) { | |
2487 | break; | |
2488 | } | |
2489 | buf += dwSize; | |
2490 | len1 -= dwSize; | |
2491 | } | |
2492 | ||
2493 | return len - len1; | |
2494 | } | |
2495 | ||
2496 | static void win_stdio_wait_func(void *opaque) | |
2497 | { | |
777357d7 MAL |
2498 | Chardev *chr = CHARDEV(opaque); |
2499 | WinStdioChardev *stdio = WIN_STDIO_CHARDEV(opaque); | |
db418a0a FC |
2500 | INPUT_RECORD buf[4]; |
2501 | int ret; | |
2502 | DWORD dwSize; | |
2503 | int i; | |
2504 | ||
dff7424d | 2505 | ret = ReadConsoleInput(stdio->hStdIn, buf, ARRAY_SIZE(buf), &dwSize); |
db418a0a FC |
2506 | |
2507 | if (!ret) { | |
2508 | /* Avoid error storm */ | |
2509 | qemu_del_wait_object(stdio->hStdIn, NULL, NULL); | |
2510 | return; | |
2511 | } | |
2512 | ||
2513 | for (i = 0; i < dwSize; i++) { | |
2514 | KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent; | |
2515 | ||
2516 | if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) { | |
2517 | int j; | |
2518 | if (kev->uChar.AsciiChar != 0) { | |
2519 | for (j = 0; j < kev->wRepeatCount; j++) { | |
2520 | if (qemu_chr_be_can_write(chr)) { | |
2521 | uint8_t c = kev->uChar.AsciiChar; | |
2522 | qemu_chr_be_write(chr, &c, 1); | |
2523 | } | |
2524 | } | |
2525 | } | |
2526 | } | |
2527 | } | |
2528 | } | |
2529 | ||
2530 | static DWORD WINAPI win_stdio_thread(LPVOID param) | |
2531 | { | |
777357d7 | 2532 | WinStdioChardev *stdio = WIN_STDIO_CHARDEV(param); |
db418a0a FC |
2533 | int ret; |
2534 | DWORD dwSize; | |
2535 | ||
2536 | while (1) { | |
2537 | ||
2538 | /* Wait for one byte */ | |
2539 | ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL); | |
2540 | ||
2541 | /* Exit in case of error, continue if nothing read */ | |
2542 | if (!ret) { | |
2543 | break; | |
2544 | } | |
2545 | if (!dwSize) { | |
2546 | continue; | |
2547 | } | |
2548 | ||
2549 | /* Some terminal emulator returns \r\n for Enter, just pass \n */ | |
2550 | if (stdio->win_stdio_buf == '\r') { | |
2551 | continue; | |
2552 | } | |
2553 | ||
2554 | /* Signal the main thread and wait until the byte was eaten */ | |
2555 | if (!SetEvent(stdio->hInputReadyEvent)) { | |
2556 | break; | |
2557 | } | |
2558 | if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE) | |
2559 | != WAIT_OBJECT_0) { | |
2560 | break; | |
2561 | } | |
2562 | } | |
2563 | ||
2564 | qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL); | |
2565 | return 0; | |
2566 | } | |
2567 | ||
2568 | static void win_stdio_thread_wait_func(void *opaque) | |
2569 | { | |
777357d7 MAL |
2570 | Chardev *chr = CHARDEV(opaque); |
2571 | WinStdioChardev *stdio = WIN_STDIO_CHARDEV(opaque); | |
db418a0a FC |
2572 | |
2573 | if (qemu_chr_be_can_write(chr)) { | |
2574 | qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1); | |
2575 | } | |
2576 | ||
2577 | SetEvent(stdio->hInputDoneEvent); | |
2578 | } | |
2579 | ||
0ec7b3e7 | 2580 | static void qemu_chr_set_echo_win_stdio(Chardev *chr, bool echo) |
db418a0a | 2581 | { |
777357d7 | 2582 | WinStdioChardev *stdio = WIN_STDIO_CHARDEV(chr); |
db418a0a FC |
2583 | DWORD dwMode = 0; |
2584 | ||
2585 | GetConsoleMode(stdio->hStdIn, &dwMode); | |
2586 | ||
2587 | if (echo) { | |
2588 | SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT); | |
2589 | } else { | |
2590 | SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT); | |
2591 | } | |
2592 | } | |
2593 | ||
1566b0c4 | 2594 | static void char_win_stdio_finalize(Object *obj) |
db418a0a | 2595 | { |
1566b0c4 | 2596 | WinStdioChardev *stdio = WIN_STDIO_CHARDEV(obj); |
db418a0a FC |
2597 | |
2598 | if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) { | |
2599 | CloseHandle(stdio->hInputReadyEvent); | |
2600 | } | |
2601 | if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) { | |
2602 | CloseHandle(stdio->hInputDoneEvent); | |
2603 | } | |
2604 | if (stdio->hInputThread != INVALID_HANDLE_VALUE) { | |
2605 | TerminateThread(stdio->hInputThread, 0); | |
2606 | } | |
db418a0a FC |
2607 | } |
2608 | ||
777357d7 MAL |
2609 | static const TypeInfo char_win_stdio_type_info = { |
2610 | .name = TYPE_CHARDEV_WIN_STDIO, | |
2611 | .parent = TYPE_CHARDEV, | |
2612 | .instance_size = sizeof(WinStdioChardev), | |
1566b0c4 | 2613 | .instance_finalize = char_win_stdio_finalize, |
777357d7 MAL |
2614 | .abstract = true, |
2615 | }; | |
2616 | ||
2617 | static void qemu_chr_open_stdio(Chardev *chr, | |
2618 | ChardevBackend *backend, | |
2619 | bool *be_opened, | |
2620 | Error **errp) | |
db418a0a | 2621 | { |
777357d7 | 2622 | WinStdioChardev *stdio = WIN_STDIO_CHARDEV(chr); |
db418a0a FC |
2623 | DWORD dwMode; |
2624 | int is_console = 0; | |
db418a0a FC |
2625 | |
2626 | stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE); | |
2627 | if (stdio->hStdIn == INVALID_HANDLE_VALUE) { | |
8c84b25d | 2628 | error_setg(errp, "cannot open stdio: invalid handle"); |
777357d7 | 2629 | return; |
db418a0a FC |
2630 | } |
2631 | ||
2632 | is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0; | |
2633 | ||
ed7a1540 AL |
2634 | if (is_console) { |
2635 | if (qemu_add_wait_object(stdio->hStdIn, | |
2636 | win_stdio_wait_func, chr)) { | |
8c84b25d PB |
2637 | error_setg(errp, "qemu_add_wait_object: failed"); |
2638 | goto err1; | |
ed7a1540 AL |
2639 | } |
2640 | } else { | |
2641 | DWORD dwId; | |
2642 | ||
2643 | stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL); | |
2644 | stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL); | |
8c84b25d | 2645 | if (stdio->hInputReadyEvent == INVALID_HANDLE_VALUE |
ed7a1540 | 2646 | || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) { |
8c84b25d PB |
2647 | error_setg(errp, "cannot create event"); |
2648 | goto err2; | |
ed7a1540 AL |
2649 | } |
2650 | if (qemu_add_wait_object(stdio->hInputReadyEvent, | |
2651 | win_stdio_thread_wait_func, chr)) { | |
8c84b25d PB |
2652 | error_setg(errp, "qemu_add_wait_object: failed"); |
2653 | goto err2; | |
2654 | } | |
2655 | stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread, | |
2656 | chr, 0, &dwId); | |
2657 | ||
2658 | if (stdio->hInputThread == INVALID_HANDLE_VALUE) { | |
2659 | error_setg(errp, "cannot create stdio thread"); | |
2660 | goto err3; | |
db418a0a FC |
2661 | } |
2662 | } | |
2663 | ||
2664 | dwMode |= ENABLE_LINE_INPUT; | |
2665 | ||
ed7a1540 | 2666 | if (is_console) { |
db418a0a FC |
2667 | /* set the terminal in raw mode */ |
2668 | /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */ | |
2669 | dwMode |= ENABLE_PROCESSED_INPUT; | |
2670 | } | |
2671 | ||
2672 | SetConsoleMode(stdio->hStdIn, dwMode); | |
2673 | ||
5345fdb4 | 2674 | qemu_chr_set_echo_win_stdio(chr, false); |
db418a0a | 2675 | |
777357d7 | 2676 | return; |
8c84b25d PB |
2677 | |
2678 | err3: | |
2679 | qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL); | |
2680 | err2: | |
2681 | CloseHandle(stdio->hInputReadyEvent); | |
2682 | CloseHandle(stdio->hInputDoneEvent); | |
2683 | err1: | |
2684 | qemu_del_wait_object(stdio->hStdIn, NULL, NULL); | |
db418a0a | 2685 | } |
6f97dba0 AL |
2686 | #endif /* !_WIN32 */ |
2687 | ||
2688 | /***********************************************************/ | |
2689 | /* UDP Net console */ | |
2690 | ||
2691 | typedef struct { | |
0ec7b3e7 | 2692 | Chardev parent; |
9894dc0c | 2693 | QIOChannel *ioc; |
9bd7854e | 2694 | uint8_t buf[READ_BUF_LEN]; |
6f97dba0 AL |
2695 | int bufcnt; |
2696 | int bufptr; | |
2697 | int max_size; | |
1876ed04 | 2698 | } UdpChardev; |
6f97dba0 | 2699 | |
777357d7 MAL |
2700 | #define UDP_CHARDEV(obj) OBJECT_CHECK(UdpChardev, (obj), TYPE_CHARDEV_UDP) |
2701 | ||
9005b2a7 | 2702 | /* Called with chr_write_lock held. */ |
0ec7b3e7 | 2703 | static int udp_chr_write(Chardev *chr, const uint8_t *buf, int len) |
6f97dba0 | 2704 | { |
777357d7 | 2705 | UdpChardev *s = UDP_CHARDEV(chr); |
76a9644b | 2706 | |
9894dc0c DB |
2707 | return qio_channel_write( |
2708 | s->ioc, (const char *)buf, len, NULL); | |
6f97dba0 AL |
2709 | } |
2710 | ||
2711 | static int udp_chr_read_poll(void *opaque) | |
2712 | { | |
777357d7 MAL |
2713 | Chardev *chr = CHARDEV(opaque); |
2714 | UdpChardev *s = UDP_CHARDEV(opaque); | |
6f97dba0 | 2715 | |
909cda12 | 2716 | s->max_size = qemu_chr_be_can_write(chr); |
6f97dba0 AL |
2717 | |
2718 | /* If there were any stray characters in the queue process them | |
2719 | * first | |
2720 | */ | |
2721 | while (s->max_size > 0 && s->bufptr < s->bufcnt) { | |
fa5efccb | 2722 | qemu_chr_be_write(chr, &s->buf[s->bufptr], 1); |
6f97dba0 | 2723 | s->bufptr++; |
909cda12 | 2724 | s->max_size = qemu_chr_be_can_write(chr); |
6f97dba0 AL |
2725 | } |
2726 | return s->max_size; | |
2727 | } | |
2728 | ||
9894dc0c | 2729 | static gboolean udp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque) |
6f97dba0 | 2730 | { |
777357d7 MAL |
2731 | Chardev *chr = CHARDEV(opaque); |
2732 | UdpChardev *s = UDP_CHARDEV(opaque); | |
9894dc0c | 2733 | ssize_t ret; |
6f97dba0 | 2734 | |
cdbf6e16 PB |
2735 | if (s->max_size == 0) { |
2736 | return TRUE; | |
2737 | } | |
9894dc0c DB |
2738 | ret = qio_channel_read( |
2739 | s->ioc, (char *)s->buf, sizeof(s->buf), NULL); | |
2740 | if (ret <= 0) { | |
26da70c7 | 2741 | remove_fd_in_watch(chr); |
76a9644b AL |
2742 | return FALSE; |
2743 | } | |
9894dc0c | 2744 | s->bufcnt = ret; |
6f97dba0 AL |
2745 | |
2746 | s->bufptr = 0; | |
2747 | while (s->max_size > 0 && s->bufptr < s->bufcnt) { | |
fa5efccb | 2748 | qemu_chr_be_write(chr, &s->buf[s->bufptr], 1); |
6f97dba0 | 2749 | s->bufptr++; |
909cda12 | 2750 | s->max_size = qemu_chr_be_can_write(chr); |
6f97dba0 | 2751 | } |
76a9644b AL |
2752 | |
2753 | return TRUE; | |
6f97dba0 AL |
2754 | } |
2755 | ||
0ec7b3e7 | 2756 | static void udp_chr_update_read_handler(Chardev *chr, |
a4afa548 | 2757 | GMainContext *context) |
6f97dba0 | 2758 | { |
777357d7 | 2759 | UdpChardev *s = UDP_CHARDEV(chr); |
6f97dba0 | 2760 | |
26da70c7 | 2761 | remove_fd_in_watch(chr); |
9894dc0c | 2762 | if (s->ioc) { |
e93a68e1 | 2763 | chr->fd_in_tag = io_add_watch_poll(chr, s->ioc, |
9894dc0c | 2764 | udp_chr_read_poll, |
e92aa36a ZC |
2765 | udp_chr_read, chr, |
2766 | context); | |
6f97dba0 AL |
2767 | } |
2768 | } | |
2769 | ||
819aad23 | 2770 | static void char_udp_finalize(Object *obj) |
819f56b7 | 2771 | { |
819aad23 MAL |
2772 | Chardev *chr = CHARDEV(obj); |
2773 | UdpChardev *s = UDP_CHARDEV(obj); | |
26da70c7 AS |
2774 | |
2775 | remove_fd_in_watch(chr); | |
9894dc0c DB |
2776 | if (s->ioc) { |
2777 | object_unref(OBJECT(s->ioc)); | |
819f56b7 | 2778 | } |
a425d23f | 2779 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
819f56b7 AL |
2780 | } |
2781 | ||
6f97dba0 AL |
2782 | /***********************************************************/ |
2783 | /* TCP Net console */ | |
2784 | ||
2785 | typedef struct { | |
0ec7b3e7 | 2786 | Chardev parent; |
a8fb5427 DB |
2787 | QIOChannel *ioc; /* Client I/O channel */ |
2788 | QIOChannelSocket *sioc; /* Client master channel */ | |
9894dc0c | 2789 | QIOChannelSocket *listen_ioc; |
7ba9addc | 2790 | guint listen_tag; |
a8fb5427 | 2791 | QCryptoTLSCreds *tls_creds; |
6f97dba0 AL |
2792 | int connected; |
2793 | int max_size; | |
2794 | int do_telnetopt; | |
2795 | int do_nodelay; | |
2796 | int is_unix; | |
c76bf6bb | 2797 | int *read_msgfds; |
9894dc0c | 2798 | size_t read_msgfds_num; |
d39aac7a | 2799 | int *write_msgfds; |
9894dc0c | 2800 | size_t write_msgfds_num; |
cfb429cb CM |
2801 | |
2802 | SocketAddress *addr; | |
2803 | bool is_listen; | |
2804 | bool is_telnet; | |
5dd1f02b CM |
2805 | |
2806 | guint reconnect_timer; | |
2807 | int64_t reconnect_time; | |
5008e5b7 | 2808 | bool connect_err_reported; |
1876ed04 | 2809 | } SocketChardev; |
6f97dba0 | 2810 | |
777357d7 MAL |
2811 | #define SOCKET_CHARDEV(obj) \ |
2812 | OBJECT_CHECK(SocketChardev, (obj), TYPE_CHARDEV_SOCKET) | |
2813 | ||
5dd1f02b CM |
2814 | static gboolean socket_reconnect_timeout(gpointer opaque); |
2815 | ||
0ec7b3e7 | 2816 | static void qemu_chr_socket_restart_timer(Chardev *chr) |
5dd1f02b | 2817 | { |
777357d7 | 2818 | SocketChardev *s = SOCKET_CHARDEV(chr); |
e93a68e1 | 2819 | char *name; |
41ac54b2 | 2820 | |
5dd1f02b CM |
2821 | assert(s->connected == 0); |
2822 | s->reconnect_timer = g_timeout_add_seconds(s->reconnect_time, | |
2823 | socket_reconnect_timeout, chr); | |
e93a68e1 DB |
2824 | name = g_strdup_printf("chardev-socket-reconnect-%s", chr->label); |
2825 | g_source_set_name_by_id(s->reconnect_timer, name); | |
2826 | g_free(name); | |
5dd1f02b CM |
2827 | } |
2828 | ||
0ec7b3e7 | 2829 | static void check_report_connect_error(Chardev *chr, |
5008e5b7 CM |
2830 | Error *err) |
2831 | { | |
777357d7 | 2832 | SocketChardev *s = SOCKET_CHARDEV(chr); |
5008e5b7 CM |
2833 | |
2834 | if (!s->connect_err_reported) { | |
2835 | error_report("Unable to connect character device %s: %s", | |
2836 | chr->label, error_get_pretty(err)); | |
2837 | s->connect_err_reported = true; | |
2838 | } | |
2839 | qemu_chr_socket_restart_timer(chr); | |
2840 | } | |
2841 | ||
9894dc0c DB |
2842 | static gboolean tcp_chr_accept(QIOChannel *chan, |
2843 | GIOCondition cond, | |
2844 | void *opaque); | |
d39aac7a | 2845 | |
9005b2a7 | 2846 | /* Called with chr_write_lock held. */ |
0ec7b3e7 | 2847 | static int tcp_chr_write(Chardev *chr, const uint8_t *buf, int len) |
6f97dba0 | 2848 | { |
777357d7 | 2849 | SocketChardev *s = SOCKET_CHARDEV(chr); |
41ac54b2 | 2850 | |
6f97dba0 | 2851 | if (s->connected) { |
9894dc0c DB |
2852 | int ret = io_channel_send_full(s->ioc, buf, len, |
2853 | s->write_msgfds, | |
2854 | s->write_msgfds_num); | |
2855 | ||
2856 | /* free the written msgfds, no matter what */ | |
2857 | if (s->write_msgfds_num) { | |
2858 | g_free(s->write_msgfds); | |
2859 | s->write_msgfds = 0; | |
2860 | s->write_msgfds_num = 0; | |
d39aac7a | 2861 | } |
9894dc0c DB |
2862 | |
2863 | return ret; | |
455aa1e0 | 2864 | } else { |
6db0fdce | 2865 | /* XXX: indicate an error ? */ |
455aa1e0 | 2866 | return len; |
6f97dba0 AL |
2867 | } |
2868 | } | |
2869 | ||
2870 | static int tcp_chr_read_poll(void *opaque) | |
2871 | { | |
777357d7 MAL |
2872 | Chardev *chr = CHARDEV(opaque); |
2873 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
6f97dba0 AL |
2874 | if (!s->connected) |
2875 | return 0; | |
909cda12 | 2876 | s->max_size = qemu_chr_be_can_write(chr); |
6f97dba0 AL |
2877 | return s->max_size; |
2878 | } | |
2879 | ||
2880 | #define IAC 255 | |
2881 | #define IAC_BREAK 243 | |
0ec7b3e7 | 2882 | static void tcp_chr_process_IAC_bytes(Chardev *chr, |
1876ed04 | 2883 | SocketChardev *s, |
6f97dba0 AL |
2884 | uint8_t *buf, int *size) |
2885 | { | |
2886 | /* Handle any telnet client's basic IAC options to satisfy char by | |
2887 | * char mode with no echo. All IAC options will be removed from | |
2888 | * the buf and the do_telnetopt variable will be used to track the | |
2889 | * state of the width of the IAC information. | |
2890 | * | |
2891 | * IAC commands come in sets of 3 bytes with the exception of the | |
2892 | * "IAC BREAK" command and the double IAC. | |
2893 | */ | |
2894 | ||
2895 | int i; | |
2896 | int j = 0; | |
2897 | ||
2898 | for (i = 0; i < *size; i++) { | |
2899 | if (s->do_telnetopt > 1) { | |
2900 | if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { | |
2901 | /* Double IAC means send an IAC */ | |
2902 | if (j != i) | |
2903 | buf[j] = buf[i]; | |
2904 | j++; | |
2905 | s->do_telnetopt = 1; | |
2906 | } else { | |
2907 | if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { | |
2908 | /* Handle IAC break commands by sending a serial break */ | |
a425d23f | 2909 | qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
6f97dba0 AL |
2910 | s->do_telnetopt++; |
2911 | } | |
2912 | s->do_telnetopt++; | |
2913 | } | |
2914 | if (s->do_telnetopt >= 4) { | |
2915 | s->do_telnetopt = 1; | |
2916 | } | |
2917 | } else { | |
2918 | if ((unsigned char)buf[i] == IAC) { | |
2919 | s->do_telnetopt = 2; | |
2920 | } else { | |
2921 | if (j != i) | |
2922 | buf[j] = buf[i]; | |
2923 | j++; | |
2924 | } | |
2925 | } | |
2926 | } | |
2927 | *size = j; | |
2928 | } | |
2929 | ||
0ec7b3e7 | 2930 | static int tcp_get_msgfds(Chardev *chr, int *fds, int num) |
7d174059 | 2931 | { |
777357d7 | 2932 | SocketChardev *s = SOCKET_CHARDEV(chr); |
41ac54b2 | 2933 | |
c76bf6bb NN |
2934 | int to_copy = (s->read_msgfds_num < num) ? s->read_msgfds_num : num; |
2935 | ||
c4095726 MT |
2936 | assert(num <= TCP_MAX_FDS); |
2937 | ||
c76bf6bb | 2938 | if (to_copy) { |
d2fc39b4 SH |
2939 | int i; |
2940 | ||
c76bf6bb NN |
2941 | memcpy(fds, s->read_msgfds, to_copy * sizeof(int)); |
2942 | ||
d2fc39b4 SH |
2943 | /* Close unused fds */ |
2944 | for (i = to_copy; i < s->read_msgfds_num; i++) { | |
2945 | close(s->read_msgfds[i]); | |
2946 | } | |
2947 | ||
c76bf6bb NN |
2948 | g_free(s->read_msgfds); |
2949 | s->read_msgfds = 0; | |
2950 | s->read_msgfds_num = 0; | |
2951 | } | |
2952 | ||
2953 | return to_copy; | |
7d174059 MM |
2954 | } |
2955 | ||
0ec7b3e7 | 2956 | static int tcp_set_msgfds(Chardev *chr, int *fds, int num) |
d39aac7a | 2957 | { |
777357d7 | 2958 | SocketChardev *s = SOCKET_CHARDEV(chr); |
d39aac7a NN |
2959 | |
2960 | /* clear old pending fd array */ | |
ef1e1e07 | 2961 | g_free(s->write_msgfds); |
869a58af | 2962 | s->write_msgfds = NULL; |
5b498459 | 2963 | s->write_msgfds_num = 0; |
d39aac7a | 2964 | |
5c7eaabf MAL |
2965 | if (!s->connected || |
2966 | !qio_channel_has_feature(s->ioc, | |
2967 | QIO_CHANNEL_FEATURE_FD_PASS)) { | |
2968 | return -1; | |
2969 | } | |
2970 | ||
d39aac7a | 2971 | if (num) { |
2d528d45 | 2972 | s->write_msgfds = g_new(int, num); |
d39aac7a NN |
2973 | memcpy(s->write_msgfds, fds, num * sizeof(int)); |
2974 | } | |
2975 | ||
2976 | s->write_msgfds_num = num; | |
2977 | ||
2978 | return 0; | |
2979 | } | |
2980 | ||
0ec7b3e7 | 2981 | static ssize_t tcp_chr_recv(Chardev *chr, char *buf, size_t len) |
7d174059 | 2982 | { |
777357d7 | 2983 | SocketChardev *s = SOCKET_CHARDEV(chr); |
9894dc0c DB |
2984 | struct iovec iov = { .iov_base = buf, .iov_len = len }; |
2985 | int ret; | |
2986 | size_t i; | |
2987 | int *msgfds = NULL; | |
2988 | size_t msgfds_num = 0; | |
2989 | ||
2990 | if (qio_channel_has_feature(s->ioc, QIO_CHANNEL_FEATURE_FD_PASS)) { | |
2991 | ret = qio_channel_readv_full(s->ioc, &iov, 1, | |
2992 | &msgfds, &msgfds_num, | |
2993 | NULL); | |
2994 | } else { | |
2995 | ret = qio_channel_readv_full(s->ioc, &iov, 1, | |
2996 | NULL, NULL, | |
2997 | NULL); | |
2998 | } | |
7d174059 | 2999 | |
b6572b4f MAL |
3000 | if (ret == QIO_CHANNEL_ERR_BLOCK) { |
3001 | errno = EAGAIN; | |
3002 | ret = -1; | |
3003 | } else if (ret == -1) { | |
3004 | errno = EIO; | |
3005 | } | |
3006 | ||
9894dc0c | 3007 | if (msgfds_num) { |
c76bf6bb NN |
3008 | /* close and clean read_msgfds */ |
3009 | for (i = 0; i < s->read_msgfds_num; i++) { | |
3010 | close(s->read_msgfds[i]); | |
3011 | } | |
9b938c72 | 3012 | |
c76bf6bb NN |
3013 | if (s->read_msgfds_num) { |
3014 | g_free(s->read_msgfds); | |
3015 | } | |
3016 | ||
9894dc0c DB |
3017 | s->read_msgfds = msgfds; |
3018 | s->read_msgfds_num = msgfds_num; | |
7d174059 | 3019 | } |
7d174059 | 3020 | |
9894dc0c DB |
3021 | for (i = 0; i < s->read_msgfds_num; i++) { |
3022 | int fd = s->read_msgfds[i]; | |
3023 | if (fd < 0) { | |
3024 | continue; | |
3025 | } | |
9977c894 | 3026 | |
9894dc0c DB |
3027 | /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */ |
3028 | qemu_set_block(fd); | |
7d174059 | 3029 | |
9894dc0c DB |
3030 | #ifndef MSG_CMSG_CLOEXEC |
3031 | qemu_set_cloexec(fd); | |
06138651 | 3032 | #endif |
06138651 | 3033 | } |
9977c894 | 3034 | |
7d174059 | 3035 | return ret; |
9977c894 | 3036 | } |
9977c894 | 3037 | |
0ec7b3e7 | 3038 | static GSource *tcp_chr_add_watch(Chardev *chr, GIOCondition cond) |
d3cc5bc4 | 3039 | { |
777357d7 | 3040 | SocketChardev *s = SOCKET_CHARDEV(chr); |
9894dc0c | 3041 | return qio_channel_create_watch(s->ioc, cond); |
d3cc5bc4 AS |
3042 | } |
3043 | ||
0ec7b3e7 | 3044 | static void tcp_chr_free_connection(Chardev *chr) |
7b0bfdf5 | 3045 | { |
777357d7 | 3046 | SocketChardev *s = SOCKET_CHARDEV(chr); |
5b498459 | 3047 | int i; |
7b0bfdf5 | 3048 | |
342f7a9d MAL |
3049 | if (!s->connected) { |
3050 | return; | |
3051 | } | |
3052 | ||
5b498459 MAL |
3053 | if (s->read_msgfds_num) { |
3054 | for (i = 0; i < s->read_msgfds_num; i++) { | |
3055 | close(s->read_msgfds[i]); | |
3056 | } | |
3057 | g_free(s->read_msgfds); | |
3058 | s->read_msgfds = NULL; | |
3059 | s->read_msgfds_num = 0; | |
7b0bfdf5 | 3060 | } |
5b498459 | 3061 | |
6167ebbd | 3062 | tcp_set_msgfds(chr, NULL, 0); |
7b0bfdf5 | 3063 | remove_fd_in_watch(chr); |
a8fb5427 DB |
3064 | object_unref(OBJECT(s->sioc)); |
3065 | s->sioc = NULL; | |
9894dc0c DB |
3066 | object_unref(OBJECT(s->ioc)); |
3067 | s->ioc = NULL; | |
0ff0fad2 | 3068 | g_free(chr->filename); |
5b498459 MAL |
3069 | chr->filename = NULL; |
3070 | s->connected = 0; | |
3071 | } | |
3072 | ||
0ec7b3e7 | 3073 | static void tcp_chr_disconnect(Chardev *chr) |
5b498459 | 3074 | { |
777357d7 | 3075 | SocketChardev *s = SOCKET_CHARDEV(chr); |
5b498459 MAL |
3076 | |
3077 | if (!s->connected) { | |
3078 | return; | |
3079 | } | |
3080 | ||
3081 | tcp_chr_free_connection(chr); | |
3082 | ||
3083 | if (s->listen_ioc) { | |
3084 | s->listen_tag = qio_channel_add_watch( | |
3085 | QIO_CHANNEL(s->listen_ioc), G_IO_IN, tcp_chr_accept, chr, NULL); | |
3086 | } | |
0ff0fad2 DB |
3087 | chr->filename = SocketAddress_to_str("disconnected:", s->addr, |
3088 | s->is_listen, s->is_telnet); | |
7b0bfdf5 | 3089 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
5dd1f02b CM |
3090 | if (s->reconnect_time) { |
3091 | qemu_chr_socket_restart_timer(chr); | |
3092 | } | |
7b0bfdf5 NN |
3093 | } |
3094 | ||
9894dc0c | 3095 | static gboolean tcp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque) |
6f97dba0 | 3096 | { |
777357d7 MAL |
3097 | Chardev *chr = CHARDEV(opaque); |
3098 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
9bd7854e | 3099 | uint8_t buf[READ_BUF_LEN]; |
6f97dba0 AL |
3100 | int len, size; |
3101 | ||
2ea5a7af | 3102 | if (!s->connected || s->max_size <= 0) { |
cdbf6e16 | 3103 | return TRUE; |
2ea5a7af | 3104 | } |
6f97dba0 AL |
3105 | len = sizeof(buf); |
3106 | if (len > s->max_size) | |
3107 | len = s->max_size; | |
9977c894 | 3108 | size = tcp_chr_recv(chr, (void *)buf, len); |
9894dc0c | 3109 | if (size == 0 || size == -1) { |
6f97dba0 | 3110 | /* connection closed */ |
7b0bfdf5 | 3111 | tcp_chr_disconnect(chr); |
6f97dba0 AL |
3112 | } else if (size > 0) { |
3113 | if (s->do_telnetopt) | |
3114 | tcp_chr_process_IAC_bytes(chr, s, buf, &size); | |
3115 | if (size > 0) | |
fa5efccb | 3116 | qemu_chr_be_write(chr, buf, size); |
6f97dba0 | 3117 | } |
2ea5a7af AL |
3118 | |
3119 | return TRUE; | |
6f97dba0 AL |
3120 | } |
3121 | ||
0ec7b3e7 | 3122 | static int tcp_chr_sync_read(Chardev *chr, const uint8_t *buf, int len) |
7b0bfdf5 | 3123 | { |
777357d7 | 3124 | SocketChardev *s = SOCKET_CHARDEV(chr); |
7b0bfdf5 NN |
3125 | int size; |
3126 | ||
3127 | if (!s->connected) { | |
3128 | return 0; | |
3129 | } | |
3130 | ||
3131 | size = tcp_chr_recv(chr, (void *) buf, len); | |
3132 | if (size == 0) { | |
3133 | /* connection closed */ | |
3134 | tcp_chr_disconnect(chr); | |
3135 | } | |
3136 | ||
3137 | return size; | |
3138 | } | |
3139 | ||
6f97dba0 AL |
3140 | static void tcp_chr_connect(void *opaque) |
3141 | { | |
777357d7 MAL |
3142 | Chardev *chr = CHARDEV(opaque); |
3143 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
16cc4ffe | 3144 | |
0ff0fad2 | 3145 | g_free(chr->filename); |
a8fb5427 DB |
3146 | chr->filename = sockaddr_to_str( |
3147 | &s->sioc->localAddr, s->sioc->localAddrLen, | |
3148 | &s->sioc->remoteAddr, s->sioc->remoteAddrLen, | |
3149 | s->is_listen, s->is_telnet); | |
6f97dba0 AL |
3150 | |
3151 | s->connected = 1; | |
9894dc0c | 3152 | if (s->ioc) { |
e93a68e1 | 3153 | chr->fd_in_tag = io_add_watch_poll(chr, s->ioc, |
9894dc0c | 3154 | tcp_chr_read_poll, |
e92aa36a ZC |
3155 | tcp_chr_read, |
3156 | chr, NULL); | |
bbdd2ad0 | 3157 | } |
fee204fd | 3158 | qemu_chr_be_generic_open(chr); |
6f97dba0 AL |
3159 | } |
3160 | ||
0ec7b3e7 | 3161 | static void tcp_chr_update_read_handler(Chardev *chr, |
a4afa548 | 3162 | GMainContext *context) |
ac1b84dd | 3163 | { |
777357d7 | 3164 | SocketChardev *s = SOCKET_CHARDEV(chr); |
ac1b84dd | 3165 | |
1e94f23d DB |
3166 | if (!s->connected) { |
3167 | return; | |
3168 | } | |
3169 | ||
ac1b84dd | 3170 | remove_fd_in_watch(chr); |
9894dc0c | 3171 | if (s->ioc) { |
e93a68e1 | 3172 | chr->fd_in_tag = io_add_watch_poll(chr, s->ioc, |
9894dc0c | 3173 | tcp_chr_read_poll, |
e92aa36a ZC |
3174 | tcp_chr_read, chr, |
3175 | context); | |
ac1b84dd GH |
3176 | } |
3177 | } | |
3178 | ||
f2001a7e | 3179 | typedef struct { |
0ec7b3e7 | 3180 | Chardev *chr; |
f2001a7e DB |
3181 | char buf[12]; |
3182 | size_t buflen; | |
3183 | } TCPCharDriverTelnetInit; | |
3184 | ||
3185 | static gboolean tcp_chr_telnet_init_io(QIOChannel *ioc, | |
3186 | GIOCondition cond G_GNUC_UNUSED, | |
3187 | gpointer user_data) | |
6f97dba0 | 3188 | { |
f2001a7e DB |
3189 | TCPCharDriverTelnetInit *init = user_data; |
3190 | ssize_t ret; | |
3191 | ||
3192 | ret = qio_channel_write(ioc, init->buf, init->buflen, NULL); | |
3193 | if (ret < 0) { | |
3194 | if (ret == QIO_CHANNEL_ERR_BLOCK) { | |
3195 | ret = 0; | |
3196 | } else { | |
3197 | tcp_chr_disconnect(init->chr); | |
3198 | return FALSE; | |
3199 | } | |
3200 | } | |
3201 | init->buflen -= ret; | |
3202 | ||
3203 | if (init->buflen == 0) { | |
3204 | tcp_chr_connect(init->chr); | |
3205 | return FALSE; | |
3206 | } | |
3207 | ||
3208 | memmove(init->buf, init->buf + ret, init->buflen); | |
3209 | ||
3210 | return TRUE; | |
3211 | } | |
3212 | ||
0ec7b3e7 | 3213 | static void tcp_chr_telnet_init(Chardev *chr) |
f2001a7e | 3214 | { |
777357d7 | 3215 | SocketChardev *s = SOCKET_CHARDEV(chr); |
f2001a7e DB |
3216 | TCPCharDriverTelnetInit *init = |
3217 | g_new0(TCPCharDriverTelnetInit, 1); | |
3218 | size_t n = 0; | |
3219 | ||
3220 | init->chr = chr; | |
3221 | init->buflen = 12; | |
3222 | ||
3223 | #define IACSET(x, a, b, c) \ | |
3224 | do { \ | |
3225 | x[n++] = a; \ | |
3226 | x[n++] = b; \ | |
3227 | x[n++] = c; \ | |
3228 | } while (0) | |
3229 | ||
3230 | /* Prep the telnet negotion to put telnet in binary, | |
3231 | * no echo, single char mode */ | |
3232 | IACSET(init->buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ | |
3233 | IACSET(init->buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ | |
3234 | IACSET(init->buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ | |
3235 | IACSET(init->buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ | |
3236 | ||
3237 | #undef IACSET | |
3238 | ||
3239 | qio_channel_add_watch( | |
3240 | s->ioc, G_IO_OUT, | |
3241 | tcp_chr_telnet_init_io, | |
3242 | init, NULL); | |
6f97dba0 AL |
3243 | } |
3244 | ||
a8fb5427 | 3245 | |
60e705c5 | 3246 | static void tcp_chr_tls_handshake(QIOTask *task, |
a8fb5427 DB |
3247 | gpointer user_data) |
3248 | { | |
0ec7b3e7 | 3249 | Chardev *chr = user_data; |
1876ed04 | 3250 | SocketChardev *s = user_data; |
a8fb5427 | 3251 | |
60e705c5 | 3252 | if (qio_task_propagate_error(task, NULL)) { |
a8fb5427 DB |
3253 | tcp_chr_disconnect(chr); |
3254 | } else { | |
3255 | if (s->do_telnetopt) { | |
3256 | tcp_chr_telnet_init(chr); | |
3257 | } else { | |
3258 | tcp_chr_connect(chr); | |
3259 | } | |
3260 | } | |
3261 | } | |
3262 | ||
3263 | ||
0ec7b3e7 | 3264 | static void tcp_chr_tls_init(Chardev *chr) |
a8fb5427 | 3265 | { |
777357d7 | 3266 | SocketChardev *s = SOCKET_CHARDEV(chr); |
a8fb5427 DB |
3267 | QIOChannelTLS *tioc; |
3268 | Error *err = NULL; | |
e93a68e1 | 3269 | gchar *name; |
a8fb5427 DB |
3270 | |
3271 | if (s->is_listen) { | |
3272 | tioc = qio_channel_tls_new_server( | |
3273 | s->ioc, s->tls_creds, | |
3274 | NULL, /* XXX Use an ACL */ | |
3275 | &err); | |
3276 | } else { | |
3277 | tioc = qio_channel_tls_new_client( | |
3278 | s->ioc, s->tls_creds, | |
32bafa8f | 3279 | s->addr->u.inet.data->host, |
a8fb5427 DB |
3280 | &err); |
3281 | } | |
3282 | if (tioc == NULL) { | |
3283 | error_free(err); | |
3284 | tcp_chr_disconnect(chr); | |
660a2d83 | 3285 | return; |
a8fb5427 | 3286 | } |
e93a68e1 DB |
3287 | name = g_strdup_printf("chardev-tls-%s-%s", |
3288 | s->is_listen ? "server" : "client", | |
3289 | chr->label); | |
3290 | qio_channel_set_name(QIO_CHANNEL(tioc), name); | |
3291 | g_free(name); | |
a8fb5427 DB |
3292 | object_unref(OBJECT(s->ioc)); |
3293 | s->ioc = QIO_CHANNEL(tioc); | |
3294 | ||
3295 | qio_channel_tls_handshake(tioc, | |
3296 | tcp_chr_tls_handshake, | |
3297 | chr, | |
3298 | NULL); | |
3299 | } | |
3300 | ||
3301 | ||
0ec7b3e7 | 3302 | static void tcp_chr_set_client_ioc_name(Chardev *chr, |
e93a68e1 DB |
3303 | QIOChannelSocket *sioc) |
3304 | { | |
777357d7 | 3305 | SocketChardev *s = SOCKET_CHARDEV(chr); |
e93a68e1 DB |
3306 | char *name; |
3307 | name = g_strdup_printf("chardev-tcp-%s-%s", | |
3308 | s->is_listen ? "server" : "client", | |
3309 | chr->label); | |
3310 | qio_channel_set_name(QIO_CHANNEL(sioc), name); | |
3311 | g_free(name); | |
3312 | ||
3313 | } | |
3314 | ||
0ec7b3e7 | 3315 | static int tcp_chr_new_client(Chardev *chr, QIOChannelSocket *sioc) |
13661089 | 3316 | { |
777357d7 | 3317 | SocketChardev *s = SOCKET_CHARDEV(chr); |
41ac54b2 | 3318 | |
9894dc0c | 3319 | if (s->ioc != NULL) { |
13661089 | 3320 | return -1; |
9894dc0c | 3321 | } |
13661089 | 3322 | |
9894dc0c DB |
3323 | s->ioc = QIO_CHANNEL(sioc); |
3324 | object_ref(OBJECT(sioc)); | |
a8fb5427 DB |
3325 | s->sioc = sioc; |
3326 | object_ref(OBJECT(sioc)); | |
9894dc0c | 3327 | |
64c800f8 DB |
3328 | qio_channel_set_blocking(s->ioc, false, NULL); |
3329 | ||
9894dc0c DB |
3330 | if (s->do_nodelay) { |
3331 | qio_channel_set_delay(s->ioc, false); | |
3332 | } | |
910b6368 PB |
3333 | if (s->listen_tag) { |
3334 | g_source_remove(s->listen_tag); | |
3335 | s->listen_tag = 0; | |
3336 | } | |
f2001a7e | 3337 | |
a8fb5427 DB |
3338 | if (s->tls_creds) { |
3339 | tcp_chr_tls_init(chr); | |
f2001a7e | 3340 | } else { |
a8fb5427 DB |
3341 | if (s->do_telnetopt) { |
3342 | tcp_chr_telnet_init(chr); | |
3343 | } else { | |
3344 | tcp_chr_connect(chr); | |
3345 | } | |
f2001a7e | 3346 | } |
13661089 DB |
3347 | |
3348 | return 0; | |
3349 | } | |
3350 | ||
9894dc0c | 3351 | |
0ec7b3e7 | 3352 | static int tcp_chr_add_client(Chardev *chr, int fd) |
9894dc0c DB |
3353 | { |
3354 | int ret; | |
3355 | QIOChannelSocket *sioc; | |
3356 | ||
3357 | sioc = qio_channel_socket_new_fd(fd, NULL); | |
3358 | if (!sioc) { | |
3359 | return -1; | |
3360 | } | |
e93a68e1 | 3361 | tcp_chr_set_client_ioc_name(chr, sioc); |
9894dc0c DB |
3362 | ret = tcp_chr_new_client(chr, sioc); |
3363 | object_unref(OBJECT(sioc)); | |
3364 | return ret; | |
3365 | } | |
3366 | ||
3367 | static gboolean tcp_chr_accept(QIOChannel *channel, | |
3368 | GIOCondition cond, | |
3369 | void *opaque) | |
6f97dba0 | 3370 | { |
777357d7 | 3371 | Chardev *chr = CHARDEV(opaque); |
9894dc0c | 3372 | QIOChannelSocket *sioc; |
6f97dba0 | 3373 | |
9894dc0c DB |
3374 | sioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(channel), |
3375 | NULL); | |
3376 | if (!sioc) { | |
3377 | return TRUE; | |
6f97dba0 | 3378 | } |
9894dc0c | 3379 | |
9894dc0c DB |
3380 | tcp_chr_new_client(chr, sioc); |
3381 | ||
3382 | object_unref(OBJECT(sioc)); | |
2ea5a7af AL |
3383 | |
3384 | return TRUE; | |
6f97dba0 AL |
3385 | } |
3386 | ||
0ec7b3e7 | 3387 | static int tcp_chr_wait_connected(Chardev *chr, Error **errp) |
d7a04fd7 | 3388 | { |
777357d7 | 3389 | SocketChardev *s = SOCKET_CHARDEV(chr); |
d7a04fd7 MAL |
3390 | QIOChannelSocket *sioc; |
3391 | ||
1dc8a669 MAL |
3392 | /* It can't wait on s->connected, since it is set asynchronously |
3393 | * in TLS and telnet cases, only wait for an accepted socket */ | |
3394 | while (!s->ioc) { | |
d7a04fd7 | 3395 | if (s->is_listen) { |
776a32a0 MAL |
3396 | error_report("QEMU waiting for connection on: %s", |
3397 | chr->filename); | |
d7a04fd7 MAL |
3398 | qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), true, NULL); |
3399 | tcp_chr_accept(QIO_CHANNEL(s->listen_ioc), G_IO_IN, chr); | |
3400 | qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), false, NULL); | |
3401 | } else { | |
3402 | sioc = qio_channel_socket_new(); | |
e93a68e1 | 3403 | tcp_chr_set_client_ioc_name(chr, sioc); |
d7a04fd7 MAL |
3404 | if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) { |
3405 | object_unref(OBJECT(sioc)); | |
3406 | return -1; | |
3407 | } | |
3408 | tcp_chr_new_client(chr, sioc); | |
3409 | object_unref(OBJECT(sioc)); | |
3410 | } | |
3411 | } | |
3412 | ||
3413 | return 0; | |
3414 | } | |
3415 | ||
0ec7b3e7 | 3416 | static int qemu_chr_wait_connected(Chardev *chr, Error **errp) |
6b6723c3 | 3417 | { |
777357d7 MAL |
3418 | ChardevClass *cc = CHARDEV_GET_CLASS(chr); |
3419 | ||
3420 | if (cc->chr_wait_connected) { | |
3421 | return cc->chr_wait_connected(chr, errp); | |
6b6723c3 MAL |
3422 | } |
3423 | ||
3424 | return 0; | |
3425 | } | |
3426 | ||
5345fdb4 MAL |
3427 | int qemu_chr_fe_wait_connected(CharBackend *be, Error **errp) |
3428 | { | |
fa394ed6 MAL |
3429 | if (!be->chr) { |
3430 | error_setg(errp, "missing associated backend"); | |
3431 | return -1; | |
3432 | } | |
3433 | ||
5345fdb4 MAL |
3434 | return qemu_chr_wait_connected(be->chr, errp); |
3435 | } | |
3436 | ||
2c3a5dcb | 3437 | static void char_socket_finalize(Object *obj) |
6f97dba0 | 3438 | { |
2c3a5dcb MAL |
3439 | Chardev *chr = CHARDEV(obj); |
3440 | SocketChardev *s = SOCKET_CHARDEV(obj); | |
5b498459 MAL |
3441 | |
3442 | tcp_chr_free_connection(chr); | |
cfb429cb | 3443 | |
5dd1f02b CM |
3444 | if (s->reconnect_timer) { |
3445 | g_source_remove(s->reconnect_timer); | |
3446 | s->reconnect_timer = 0; | |
3447 | } | |
cfb429cb | 3448 | qapi_free_SocketAddress(s->addr); |
9894dc0c DB |
3449 | if (s->listen_tag) { |
3450 | g_source_remove(s->listen_tag); | |
3451 | s->listen_tag = 0; | |
3452 | } | |
3453 | if (s->listen_ioc) { | |
3454 | object_unref(OBJECT(s->listen_ioc)); | |
819f56b7 | 3455 | } |
a8fb5427 DB |
3456 | if (s->tls_creds) { |
3457 | object_unref(OBJECT(s->tls_creds)); | |
3458 | } | |
41ac54b2 | 3459 | |
a425d23f | 3460 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
6f97dba0 AL |
3461 | } |
3462 | ||
43ded1a0 | 3463 | |
60e705c5 | 3464 | static void qemu_chr_socket_connected(QIOTask *task, void *opaque) |
5dd1f02b | 3465 | { |
60e705c5 | 3466 | QIOChannelSocket *sioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task)); |
777357d7 MAL |
3467 | Chardev *chr = CHARDEV(opaque); |
3468 | SocketChardev *s = SOCKET_CHARDEV(chr); | |
60e705c5 | 3469 | Error *err = NULL; |
5dd1f02b | 3470 | |
60e705c5 | 3471 | if (qio_task_propagate_error(task, &err)) { |
5008e5b7 | 3472 | check_report_connect_error(chr, err); |
60e705c5 DB |
3473 | error_free(err); |
3474 | goto cleanup; | |
5dd1f02b CM |
3475 | } |
3476 | ||
5008e5b7 | 3477 | s->connect_err_reported = false; |
f50dfe45 | 3478 | tcp_chr_new_client(chr, sioc); |
60e705c5 DB |
3479 | |
3480 | cleanup: | |
f50dfe45 | 3481 | object_unref(OBJECT(sioc)); |
5dd1f02b CM |
3482 | } |
3483 | ||
f6bd5d6e | 3484 | |
51767e7c | 3485 | /*********************************************************/ |
3949e594 | 3486 | /* Ring buffer chardev */ |
51767e7c LL |
3487 | |
3488 | typedef struct { | |
0ec7b3e7 | 3489 | Chardev parent; |
51767e7c LL |
3490 | size_t size; |
3491 | size_t prod; | |
3492 | size_t cons; | |
3493 | uint8_t *cbuf; | |
0ec7b3e7 | 3494 | } RingBufChardev; |
51767e7c | 3495 | |
777357d7 MAL |
3496 | #define RINGBUF_CHARDEV(obj) \ |
3497 | OBJECT_CHECK(RingBufChardev, (obj), TYPE_CHARDEV_RINGBUF) | |
3498 | ||
0ec7b3e7 | 3499 | static size_t ringbuf_count(const Chardev *chr) |
51767e7c | 3500 | { |
777357d7 | 3501 | const RingBufChardev *d = RINGBUF_CHARDEV(chr); |
51767e7c | 3502 | |
5c230105 | 3503 | return d->prod - d->cons; |
51767e7c LL |
3504 | } |
3505 | ||
9005b2a7 | 3506 | /* Called with chr_write_lock held. */ |
0ec7b3e7 | 3507 | static int ringbuf_chr_write(Chardev *chr, const uint8_t *buf, int len) |
51767e7c | 3508 | { |
777357d7 | 3509 | RingBufChardev *d = RINGBUF_CHARDEV(chr); |
51767e7c LL |
3510 | int i; |
3511 | ||
3512 | if (!buf || (len < 0)) { | |
3513 | return -1; | |
3514 | } | |
3515 | ||
3516 | for (i = 0; i < len; i++ ) { | |
5c230105 MA |
3517 | d->cbuf[d->prod++ & (d->size - 1)] = buf[i]; |
3518 | if (d->prod - d->cons > d->size) { | |
51767e7c LL |
3519 | d->cons = d->prod - d->size; |
3520 | } | |
3521 | } | |
3522 | ||
5c936a83 | 3523 | return len; |
51767e7c LL |
3524 | } |
3525 | ||
0ec7b3e7 | 3526 | static int ringbuf_chr_read(Chardev *chr, uint8_t *buf, int len) |
51767e7c | 3527 | { |
777357d7 | 3528 | RingBufChardev *d = RINGBUF_CHARDEV(chr); |
51767e7c LL |
3529 | int i; |
3530 | ||
9005b2a7 | 3531 | qemu_mutex_lock(&chr->chr_write_lock); |
5c230105 MA |
3532 | for (i = 0; i < len && d->cons != d->prod; i++) { |
3533 | buf[i] = d->cbuf[d->cons++ & (d->size - 1)]; | |
51767e7c | 3534 | } |
9005b2a7 | 3535 | qemu_mutex_unlock(&chr->chr_write_lock); |
51767e7c LL |
3536 | |
3537 | return i; | |
3538 | } | |
3539 | ||
9fa2f7a4 | 3540 | static void char_ringbuf_finalize(Object *obj) |
51767e7c | 3541 | { |
9fa2f7a4 | 3542 | RingBufChardev *d = RINGBUF_CHARDEV(obj); |
51767e7c LL |
3543 | |
3544 | g_free(d->cbuf); | |
51767e7c LL |
3545 | } |
3546 | ||
777357d7 MAL |
3547 | static void qemu_chr_open_ringbuf(Chardev *chr, |
3548 | ChardevBackend *backend, | |
3549 | bool *be_opened, | |
3550 | Error **errp) | |
51767e7c | 3551 | { |
32bafa8f | 3552 | ChardevRingbuf *opts = backend->u.ringbuf.data; |
777357d7 | 3553 | RingBufChardev *d = RINGBUF_CHARDEV(chr); |
51767e7c | 3554 | |
1da48c65 | 3555 | d->size = opts->has_size ? opts->size : 65536; |
51767e7c LL |
3556 | |
3557 | /* The size must be power of 2 */ | |
3558 | if (d->size & (d->size - 1)) { | |
4f57378f | 3559 | error_setg(errp, "size of ringbuf chardev must be power of two"); |
777357d7 | 3560 | return; |
51767e7c LL |
3561 | } |
3562 | ||
3563 | d->prod = 0; | |
3564 | d->cons = 0; | |
3565 | d->cbuf = g_malloc0(d->size); | |
1f590cf9 LL |
3566 | } |
3567 | ||
3949e594 | 3568 | void qmp_ringbuf_write(const char *device, const char *data, |
82e59a67 | 3569 | bool has_format, enum DataFormat format, |
1f590cf9 LL |
3570 | Error **errp) |
3571 | { | |
0ec7b3e7 | 3572 | Chardev *chr; |
c4f331b6 | 3573 | const uint8_t *write_data; |
1f590cf9 | 3574 | int ret; |
3d1bba20 | 3575 | gsize write_count; |
1f590cf9 LL |
3576 | |
3577 | chr = qemu_chr_find(device); | |
3578 | if (!chr) { | |
1a69278e | 3579 | error_setg(errp, "Device '%s' not found", device); |
1f590cf9 LL |
3580 | return; |
3581 | } | |
3582 | ||
777357d7 | 3583 | if (!CHARDEV_IS_RINGBUF(chr)) { |
3949e594 | 3584 | error_setg(errp,"%s is not a ringbuf device", device); |
1f590cf9 LL |
3585 | return; |
3586 | } | |
3587 | ||
1f590cf9 | 3588 | if (has_format && (format == DATA_FORMAT_BASE64)) { |
e9cf2fe0 DB |
3589 | write_data = qbase64_decode(data, -1, |
3590 | &write_count, | |
3591 | errp); | |
3592 | if (!write_data) { | |
3593 | return; | |
3594 | } | |
1f590cf9 LL |
3595 | } else { |
3596 | write_data = (uint8_t *)data; | |
82e59a67 | 3597 | write_count = strlen(data); |
1f590cf9 LL |
3598 | } |
3599 | ||
3949e594 | 3600 | ret = ringbuf_chr_write(chr, write_data, write_count); |
1f590cf9 | 3601 | |
13289fb5 MA |
3602 | if (write_data != (uint8_t *)data) { |
3603 | g_free((void *)write_data); | |
3604 | } | |
3605 | ||
1f590cf9 LL |
3606 | if (ret < 0) { |
3607 | error_setg(errp, "Failed to write to device %s", device); | |
3608 | return; | |
3609 | } | |
3610 | } | |
3611 | ||
3949e594 | 3612 | char *qmp_ringbuf_read(const char *device, int64_t size, |
3ab651fc MA |
3613 | bool has_format, enum DataFormat format, |
3614 | Error **errp) | |
49b6d722 | 3615 | { |
0ec7b3e7 | 3616 | Chardev *chr; |
c4f331b6 | 3617 | uint8_t *read_data; |
49b6d722 | 3618 | size_t count; |
3ab651fc | 3619 | char *data; |
49b6d722 LL |
3620 | |
3621 | chr = qemu_chr_find(device); | |
3622 | if (!chr) { | |
1a69278e | 3623 | error_setg(errp, "Device '%s' not found", device); |
49b6d722 LL |
3624 | return NULL; |
3625 | } | |
3626 | ||
777357d7 | 3627 | if (!CHARDEV_IS_RINGBUF(chr)) { |
3949e594 | 3628 | error_setg(errp,"%s is not a ringbuf device", device); |
49b6d722 LL |
3629 | return NULL; |
3630 | } | |
3631 | ||
3632 | if (size <= 0) { | |
3633 | error_setg(errp, "size must be greater than zero"); | |
3634 | return NULL; | |
3635 | } | |
3636 | ||
3949e594 | 3637 | count = ringbuf_count(chr); |
49b6d722 | 3638 | size = size > count ? count : size; |
44f3bcd2 | 3639 | read_data = g_malloc(size + 1); |
49b6d722 | 3640 | |
3949e594 | 3641 | ringbuf_chr_read(chr, read_data, size); |
49b6d722 LL |
3642 | |
3643 | if (has_format && (format == DATA_FORMAT_BASE64)) { | |
3ab651fc | 3644 | data = g_base64_encode(read_data, size); |
13289fb5 | 3645 | g_free(read_data); |
49b6d722 | 3646 | } else { |
3949e594 MA |
3647 | /* |
3648 | * FIXME should read only complete, valid UTF-8 characters up | |
3649 | * to @size bytes. Invalid sequences should be replaced by a | |
3650 | * suitable replacement character. Except when (and only | |
3651 | * when) ring buffer lost characters since last read, initial | |
3652 | * continuation characters should be dropped. | |
3653 | */ | |
44f3bcd2 | 3654 | read_data[size] = 0; |
3ab651fc | 3655 | data = (char *)read_data; |
49b6d722 LL |
3656 | } |
3657 | ||
3ab651fc | 3658 | return data; |
49b6d722 LL |
3659 | } |
3660 | ||
33521634 | 3661 | QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename) |
191bc01b | 3662 | { |
6ea314d9 | 3663 | char host[65], port[33], width[8], height[8]; |
aeb2c47a | 3664 | int pos; |
7d31544f | 3665 | const char *p; |
191bc01b | 3666 | QemuOpts *opts; |
8be7e7e4 | 3667 | Error *local_err = NULL; |
191bc01b | 3668 | |
8be7e7e4 | 3669 | opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err); |
84d18f06 | 3670 | if (local_err) { |
33394884 | 3671 | error_report_err(local_err); |
191bc01b | 3672 | return NULL; |
8be7e7e4 | 3673 | } |
191bc01b | 3674 | |
7591c5c1 GH |
3675 | if (strstart(filename, "mon:", &p)) { |
3676 | filename = p; | |
f43e47db | 3677 | qemu_opt_set(opts, "mux", "on", &error_abort); |
02c4bdf1 PB |
3678 | if (strcmp(filename, "stdio") == 0) { |
3679 | /* Monitor is muxed to stdio: do not exit on Ctrl+C by default | |
3680 | * but pass it to the guest. Handle this only for compat syntax, | |
3681 | * for -chardev syntax we have special option for this. | |
3682 | * This is what -nographic did, redirecting+muxing serial+monitor | |
3683 | * to stdio causing Ctrl+C to be passed to guest. */ | |
f43e47db | 3684 | qemu_opt_set(opts, "signal", "off", &error_abort); |
02c4bdf1 | 3685 | } |
7591c5c1 GH |
3686 | } |
3687 | ||
f0457e8d GH |
3688 | if (strcmp(filename, "null") == 0 || |
3689 | strcmp(filename, "pty") == 0 || | |
3690 | strcmp(filename, "msmouse") == 0 || | |
dc1c21e6 | 3691 | strcmp(filename, "braille") == 0 || |
5692399f | 3692 | strcmp(filename, "testdev") == 0 || |
f0457e8d | 3693 | strcmp(filename, "stdio") == 0) { |
f43e47db | 3694 | qemu_opt_set(opts, "backend", filename, &error_abort); |
191bc01b GH |
3695 | return opts; |
3696 | } | |
6ea314d9 | 3697 | if (strstart(filename, "vc", &p)) { |
f43e47db | 3698 | qemu_opt_set(opts, "backend", "vc", &error_abort); |
6ea314d9 | 3699 | if (*p == ':') { |
49aa4058 | 3700 | if (sscanf(p+1, "%7[0-9]x%7[0-9]", width, height) == 2) { |
6ea314d9 | 3701 | /* pixels */ |
f43e47db MA |
3702 | qemu_opt_set(opts, "width", width, &error_abort); |
3703 | qemu_opt_set(opts, "height", height, &error_abort); | |
49aa4058 | 3704 | } else if (sscanf(p+1, "%7[0-9]Cx%7[0-9]C", width, height) == 2) { |
6ea314d9 | 3705 | /* chars */ |
f43e47db MA |
3706 | qemu_opt_set(opts, "cols", width, &error_abort); |
3707 | qemu_opt_set(opts, "rows", height, &error_abort); | |
6ea314d9 GH |
3708 | } else { |
3709 | goto fail; | |
3710 | } | |
3711 | } | |
3712 | return opts; | |
3713 | } | |
d6c983cd | 3714 | if (strcmp(filename, "con:") == 0) { |
f43e47db | 3715 | qemu_opt_set(opts, "backend", "console", &error_abort); |
d6c983cd GH |
3716 | return opts; |
3717 | } | |
48b76496 | 3718 | if (strstart(filename, "COM", NULL)) { |
f43e47db MA |
3719 | qemu_opt_set(opts, "backend", "serial", &error_abort); |
3720 | qemu_opt_set(opts, "path", filename, &error_abort); | |
48b76496 GH |
3721 | return opts; |
3722 | } | |
7d31544f | 3723 | if (strstart(filename, "file:", &p)) { |
f43e47db MA |
3724 | qemu_opt_set(opts, "backend", "file", &error_abort); |
3725 | qemu_opt_set(opts, "path", p, &error_abort); | |
7d31544f GH |
3726 | return opts; |
3727 | } | |
3728 | if (strstart(filename, "pipe:", &p)) { | |
f43e47db MA |
3729 | qemu_opt_set(opts, "backend", "pipe", &error_abort); |
3730 | qemu_opt_set(opts, "path", p, &error_abort); | |
7d31544f GH |
3731 | return opts; |
3732 | } | |
aeb2c47a GH |
3733 | if (strstart(filename, "tcp:", &p) || |
3734 | strstart(filename, "telnet:", &p)) { | |
3735 | if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { | |
3736 | host[0] = 0; | |
3737 | if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) | |
3738 | goto fail; | |
3739 | } | |
f43e47db MA |
3740 | qemu_opt_set(opts, "backend", "socket", &error_abort); |
3741 | qemu_opt_set(opts, "host", host, &error_abort); | |
3742 | qemu_opt_set(opts, "port", port, &error_abort); | |
aeb2c47a | 3743 | if (p[pos] == ',') { |
dc523cd3 MA |
3744 | qemu_opts_do_parse(opts, p+pos+1, NULL, &local_err); |
3745 | if (local_err) { | |
3746 | error_report_err(local_err); | |
aeb2c47a | 3747 | goto fail; |
dc523cd3 | 3748 | } |
aeb2c47a GH |
3749 | } |
3750 | if (strstart(filename, "telnet:", &p)) | |
f43e47db | 3751 | qemu_opt_set(opts, "telnet", "on", &error_abort); |
aeb2c47a GH |
3752 | return opts; |
3753 | } | |
7e1b35b4 | 3754 | if (strstart(filename, "udp:", &p)) { |
f43e47db | 3755 | qemu_opt_set(opts, "backend", "udp", &error_abort); |
7e1b35b4 GH |
3756 | if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) { |
3757 | host[0] = 0; | |
39324ca4 | 3758 | if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) { |
7e1b35b4 GH |
3759 | goto fail; |
3760 | } | |
3761 | } | |
f43e47db MA |
3762 | qemu_opt_set(opts, "host", host, &error_abort); |
3763 | qemu_opt_set(opts, "port", port, &error_abort); | |
7e1b35b4 GH |
3764 | if (p[pos] == '@') { |
3765 | p += pos + 1; | |
3766 | if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { | |
3767 | host[0] = 0; | |
3768 | if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) { | |
7e1b35b4 GH |
3769 | goto fail; |
3770 | } | |
3771 | } | |
f43e47db MA |
3772 | qemu_opt_set(opts, "localaddr", host, &error_abort); |
3773 | qemu_opt_set(opts, "localport", port, &error_abort); | |
7e1b35b4 GH |
3774 | } |
3775 | return opts; | |
3776 | } | |
aeb2c47a | 3777 | if (strstart(filename, "unix:", &p)) { |
f43e47db | 3778 | qemu_opt_set(opts, "backend", "socket", &error_abort); |
dc523cd3 MA |
3779 | qemu_opts_do_parse(opts, p, "path", &local_err); |
3780 | if (local_err) { | |
3781 | error_report_err(local_err); | |
aeb2c47a | 3782 | goto fail; |
dc523cd3 | 3783 | } |
aeb2c47a GH |
3784 | return opts; |
3785 | } | |
48b76496 GH |
3786 | if (strstart(filename, "/dev/parport", NULL) || |
3787 | strstart(filename, "/dev/ppi", NULL)) { | |
f43e47db MA |
3788 | qemu_opt_set(opts, "backend", "parport", &error_abort); |
3789 | qemu_opt_set(opts, "path", filename, &error_abort); | |
48b76496 GH |
3790 | return opts; |
3791 | } | |
3792 | if (strstart(filename, "/dev/", NULL)) { | |
f43e47db MA |
3793 | qemu_opt_set(opts, "backend", "tty", &error_abort); |
3794 | qemu_opt_set(opts, "path", filename, &error_abort); | |
48b76496 GH |
3795 | return opts; |
3796 | } | |
191bc01b | 3797 | |
aeb2c47a | 3798 | fail: |
191bc01b GH |
3799 | qemu_opts_del(opts); |
3800 | return NULL; | |
3801 | } | |
3802 | ||
21a933ea | 3803 | void qemu_chr_parse_common(QemuOpts *opts, ChardevCommon *backend) |
d0d7708b DB |
3804 | { |
3805 | const char *logfile = qemu_opt_get(opts, "logfile"); | |
3806 | ||
3807 | backend->has_logfile = logfile != NULL; | |
3808 | backend->logfile = logfile ? g_strdup(logfile) : NULL; | |
3809 | ||
3810 | backend->has_logappend = true; | |
3811 | backend->logappend = qemu_opt_get_bool(opts, "logappend", false); | |
3812 | } | |
3813 | ||
3814 | ||
846e2e49 GH |
3815 | static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend, |
3816 | Error **errp) | |
3817 | { | |
3818 | const char *path = qemu_opt_get(opts, "path"); | |
f194a1ae | 3819 | ChardevFile *file; |
846e2e49 GH |
3820 | |
3821 | if (path == NULL) { | |
3822 | error_setg(errp, "chardev: file: no filename given"); | |
3823 | return; | |
3824 | } | |
32bafa8f | 3825 | file = backend->u.file.data = g_new0(ChardevFile, 1); |
f194a1ae EB |
3826 | qemu_chr_parse_common(opts, qapi_ChardevFile_base(file)); |
3827 | file->out = g_strdup(path); | |
31e38a22 | 3828 | |
f194a1ae EB |
3829 | file->has_append = true; |
3830 | file->append = qemu_opt_get_bool(opts, "append", false); | |
846e2e49 GH |
3831 | } |
3832 | ||
7c358031 GH |
3833 | static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend, |
3834 | Error **errp) | |
3835 | { | |
f194a1ae EB |
3836 | ChardevStdio *stdio; |
3837 | ||
32bafa8f | 3838 | stdio = backend->u.stdio.data = g_new0(ChardevStdio, 1); |
f194a1ae EB |
3839 | qemu_chr_parse_common(opts, qapi_ChardevStdio_base(stdio)); |
3840 | stdio->has_signal = true; | |
3841 | stdio->signal = qemu_opt_get_bool(opts, "signal", true); | |
7c358031 GH |
3842 | } |
3843 | ||
b68e956a MAL |
3844 | static const CharDriver stdio_driver = { |
3845 | .kind = CHARDEV_BACKEND_KIND_STDIO, | |
3846 | .parse = qemu_chr_parse_stdio, | |
777357d7 MAL |
3847 | }; |
3848 | ||
3849 | static void char_stdio_class_init(ObjectClass *oc, void *data) | |
3850 | { | |
3851 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
3852 | ||
3853 | cc->open = qemu_chr_open_stdio; | |
b68e956a | 3854 | #ifdef _WIN32 |
777357d7 MAL |
3855 | cc->chr_write = win_stdio_write; |
3856 | cc->chr_set_echo = qemu_chr_set_echo_win_stdio; | |
b68e956a | 3857 | #else |
777357d7 | 3858 | cc->chr_set_echo = qemu_chr_set_echo_stdio; |
b68e956a | 3859 | #endif |
777357d7 MAL |
3860 | } |
3861 | ||
3862 | static const TypeInfo char_stdio_type_info = { | |
3863 | .name = TYPE_CHARDEV_STDIO, | |
3864 | #ifdef _WIN32 | |
3865 | .parent = TYPE_CHARDEV_WIN_STDIO, | |
3866 | #else | |
3867 | .parent = TYPE_CHARDEV_FD, | |
4d833ada | 3868 | .instance_finalize = char_stdio_finalize, |
777357d7 MAL |
3869 | #endif |
3870 | .class_init = char_stdio_class_init, | |
b68e956a MAL |
3871 | }; |
3872 | ||
6511d396 | 3873 | #ifdef HAVE_CHARDEV_SERIAL |
0f1cb51d GH |
3874 | static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend, |
3875 | Error **errp) | |
3876 | { | |
3877 | const char *device = qemu_opt_get(opts, "path"); | |
f194a1ae | 3878 | ChardevHostdev *serial; |
0f1cb51d GH |
3879 | |
3880 | if (device == NULL) { | |
3881 | error_setg(errp, "chardev: serial/tty: no device path given"); | |
3882 | return; | |
3883 | } | |
32bafa8f | 3884 | serial = backend->u.serial.data = g_new0(ChardevHostdev, 1); |
f194a1ae EB |
3885 | qemu_chr_parse_common(opts, qapi_ChardevHostdev_base(serial)); |
3886 | serial->device = g_strdup(device); | |
0f1cb51d | 3887 | } |
6511d396 | 3888 | #endif |
0f1cb51d | 3889 | |
38bfb1a6 | 3890 | #ifdef HAVE_CHARDEV_PARPORT |
dc375097 GH |
3891 | static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend, |
3892 | Error **errp) | |
3893 | { | |
3894 | const char *device = qemu_opt_get(opts, "path"); | |
f194a1ae | 3895 | ChardevHostdev *parallel; |
dc375097 GH |
3896 | |
3897 | if (device == NULL) { | |
3898 | error_setg(errp, "chardev: parallel: no device path given"); | |
3899 | return; | |
3900 | } | |
32bafa8f | 3901 | parallel = backend->u.parallel.data = g_new0(ChardevHostdev, 1); |
f194a1ae EB |
3902 | qemu_chr_parse_common(opts, qapi_ChardevHostdev_base(parallel)); |
3903 | parallel->device = g_strdup(device); | |
dc375097 | 3904 | } |
38bfb1a6 | 3905 | #endif |
dc375097 | 3906 | |
548cbb36 GH |
3907 | static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend, |
3908 | Error **errp) | |
3909 | { | |
3910 | const char *device = qemu_opt_get(opts, "path"); | |
f194a1ae | 3911 | ChardevHostdev *dev; |
548cbb36 GH |
3912 | |
3913 | if (device == NULL) { | |
3914 | error_setg(errp, "chardev: pipe: no device path given"); | |
3915 | return; | |
3916 | } | |
32bafa8f | 3917 | dev = backend->u.pipe.data = g_new0(ChardevHostdev, 1); |
f194a1ae EB |
3918 | qemu_chr_parse_common(opts, qapi_ChardevHostdev_base(dev)); |
3919 | dev->device = g_strdup(device); | |
548cbb36 GH |
3920 | } |
3921 | ||
b68e956a MAL |
3922 | static const CharDriver pipe_driver = { |
3923 | .kind = CHARDEV_BACKEND_KIND_PIPE, | |
3924 | .parse = qemu_chr_parse_pipe, | |
777357d7 MAL |
3925 | }; |
3926 | ||
3927 | static void char_pipe_class_init(ObjectClass *oc, void *data) | |
3928 | { | |
3929 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
3930 | ||
3931 | cc->open = qemu_chr_open_pipe; | |
3932 | } | |
3933 | ||
3934 | static const TypeInfo char_pipe_type_info = { | |
3935 | .name = TYPE_CHARDEV_PIPE, | |
b68e956a | 3936 | #ifdef _WIN32 |
777357d7 | 3937 | .parent = TYPE_CHARDEV_WIN, |
b68e956a | 3938 | #else |
777357d7 | 3939 | .parent = TYPE_CHARDEV_FD, |
b68e956a | 3940 | #endif |
777357d7 | 3941 | .class_init = char_pipe_class_init, |
b68e956a MAL |
3942 | }; |
3943 | ||
4f57378f MA |
3944 | static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend, |
3945 | Error **errp) | |
1da48c65 GH |
3946 | { |
3947 | int val; | |
f194a1ae | 3948 | ChardevRingbuf *ringbuf; |
1da48c65 | 3949 | |
32bafa8f | 3950 | ringbuf = backend->u.ringbuf.data = g_new0(ChardevRingbuf, 1); |
f194a1ae | 3951 | qemu_chr_parse_common(opts, qapi_ChardevRingbuf_base(ringbuf)); |
1da48c65 | 3952 | |
0f953051 | 3953 | val = qemu_opt_get_size(opts, "size", 0); |
1da48c65 | 3954 | if (val != 0) { |
f194a1ae EB |
3955 | ringbuf->has_size = true; |
3956 | ringbuf->size = val; | |
1da48c65 GH |
3957 | } |
3958 | } | |
3959 | ||
b68e956a MAL |
3960 | static const CharDriver ringbuf_driver = { |
3961 | .kind = CHARDEV_BACKEND_KIND_RINGBUF, | |
3962 | .parse = qemu_chr_parse_ringbuf, | |
777357d7 MAL |
3963 | }; |
3964 | ||
3965 | static void char_ringbuf_class_init(ObjectClass *oc, void *data) | |
3966 | { | |
3967 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
3968 | ||
3969 | cc->open = qemu_chr_open_ringbuf; | |
3970 | cc->chr_write = ringbuf_chr_write; | |
777357d7 MAL |
3971 | } |
3972 | ||
3973 | static const TypeInfo char_ringbuf_type_info = { | |
3974 | .name = TYPE_CHARDEV_RINGBUF, | |
3975 | .parent = TYPE_CHARDEV, | |
3976 | .class_init = char_ringbuf_class_init, | |
3977 | .instance_size = sizeof(RingBufChardev), | |
9fa2f7a4 | 3978 | .instance_finalize = char_ringbuf_finalize, |
b68e956a MAL |
3979 | }; |
3980 | ||
3981 | /* Bug-compatibility: */ | |
3982 | static const CharDriver memory_driver = { | |
3983 | .kind = CHARDEV_BACKEND_KIND_MEMORY, | |
3984 | .parse = qemu_chr_parse_ringbuf, | |
777357d7 MAL |
3985 | }; |
3986 | ||
3987 | static const TypeInfo char_memory_type_info = { | |
3988 | .name = TYPE_CHARDEV_MEMORY, | |
3989 | .parent = TYPE_CHARDEV_RINGBUF, | |
b68e956a MAL |
3990 | }; |
3991 | ||
bb6fb7c0 GH |
3992 | static void qemu_chr_parse_mux(QemuOpts *opts, ChardevBackend *backend, |
3993 | Error **errp) | |
3994 | { | |
3995 | const char *chardev = qemu_opt_get(opts, "chardev"); | |
f194a1ae | 3996 | ChardevMux *mux; |
bb6fb7c0 GH |
3997 | |
3998 | if (chardev == NULL) { | |
3999 | error_setg(errp, "chardev: mux: no chardev given"); | |
4000 | return; | |
4001 | } | |
32bafa8f | 4002 | mux = backend->u.mux.data = g_new0(ChardevMux, 1); |
f194a1ae EB |
4003 | qemu_chr_parse_common(opts, qapi_ChardevMux_base(mux)); |
4004 | mux->chardev = g_strdup(chardev); | |
bb6fb7c0 GH |
4005 | } |
4006 | ||
b68e956a MAL |
4007 | static const CharDriver mux_driver = { |
4008 | .kind = CHARDEV_BACKEND_KIND_MUX, | |
4009 | .parse = qemu_chr_parse_mux, | |
777357d7 MAL |
4010 | }; |
4011 | ||
4012 | static void char_mux_class_init(ObjectClass *oc, void *data) | |
4013 | { | |
4014 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
4015 | ||
4016 | cc->open = qemu_chr_open_mux; | |
777357d7 MAL |
4017 | cc->chr_write = mux_chr_write; |
4018 | cc->chr_accept_input = mux_chr_accept_input; | |
4019 | cc->chr_add_watch = mux_chr_add_watch; | |
4020 | } | |
4021 | ||
4022 | static const TypeInfo char_mux_type_info = { | |
4023 | .name = TYPE_CHARDEV_MUX, | |
4024 | .parent = TYPE_CHARDEV, | |
4025 | .class_init = char_mux_class_init, | |
4026 | .instance_size = sizeof(MuxChardev), | |
980d0414 | 4027 | .instance_finalize = char_mux_finalize, |
b68e956a MAL |
4028 | }; |
4029 | ||
dafd325d PM |
4030 | static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend, |
4031 | Error **errp) | |
4032 | { | |
4033 | bool is_listen = qemu_opt_get_bool(opts, "server", false); | |
4034 | bool is_waitconnect = is_listen && qemu_opt_get_bool(opts, "wait", true); | |
4035 | bool is_telnet = qemu_opt_get_bool(opts, "telnet", false); | |
4036 | bool do_nodelay = !qemu_opt_get_bool(opts, "delay", true); | |
5dd1f02b | 4037 | int64_t reconnect = qemu_opt_get_number(opts, "reconnect", 0); |
dafd325d PM |
4038 | const char *path = qemu_opt_get(opts, "path"); |
4039 | const char *host = qemu_opt_get(opts, "host"); | |
4040 | const char *port = qemu_opt_get(opts, "port"); | |
a8fb5427 | 4041 | const char *tls_creds = qemu_opt_get(opts, "tls-creds"); |
dafd325d | 4042 | SocketAddress *addr; |
f194a1ae | 4043 | ChardevSocket *sock; |
dafd325d PM |
4044 | |
4045 | if (!path) { | |
4046 | if (!host) { | |
4047 | error_setg(errp, "chardev: socket: no host given"); | |
4048 | return; | |
4049 | } | |
4050 | if (!port) { | |
4051 | error_setg(errp, "chardev: socket: no port given"); | |
4052 | return; | |
4053 | } | |
a8fb5427 DB |
4054 | } else { |
4055 | if (tls_creds) { | |
4056 | error_setg(errp, "TLS can only be used over TCP socket"); | |
4057 | return; | |
4058 | } | |
dafd325d PM |
4059 | } |
4060 | ||
32bafa8f | 4061 | sock = backend->u.socket.data = g_new0(ChardevSocket, 1); |
f194a1ae | 4062 | qemu_chr_parse_common(opts, qapi_ChardevSocket_base(sock)); |
dafd325d | 4063 | |
f194a1ae EB |
4064 | sock->has_nodelay = true; |
4065 | sock->nodelay = do_nodelay; | |
4066 | sock->has_server = true; | |
4067 | sock->server = is_listen; | |
4068 | sock->has_telnet = true; | |
4069 | sock->telnet = is_telnet; | |
4070 | sock->has_wait = true; | |
4071 | sock->wait = is_waitconnect; | |
4072 | sock->has_reconnect = true; | |
4073 | sock->reconnect = reconnect; | |
4074 | sock->tls_creds = g_strdup(tls_creds); | |
dafd325d PM |
4075 | |
4076 | addr = g_new0(SocketAddress, 1); | |
4077 | if (path) { | |
0399293e | 4078 | UnixSocketAddress *q_unix; |
130257dc | 4079 | addr->type = SOCKET_ADDRESS_KIND_UNIX; |
32bafa8f | 4080 | q_unix = addr->u.q_unix.data = g_new0(UnixSocketAddress, 1); |
0399293e | 4081 | q_unix->path = g_strdup(path); |
dafd325d | 4082 | } else { |
130257dc | 4083 | addr->type = SOCKET_ADDRESS_KIND_INET; |
32bafa8f EB |
4084 | addr->u.inet.data = g_new(InetSocketAddress, 1); |
4085 | *addr->u.inet.data = (InetSocketAddress) { | |
0399293e EB |
4086 | .host = g_strdup(host), |
4087 | .port = g_strdup(port), | |
4088 | .has_to = qemu_opt_get(opts, "to"), | |
4089 | .to = qemu_opt_get_number(opts, "to", 0), | |
4090 | .has_ipv4 = qemu_opt_get(opts, "ipv4"), | |
4091 | .ipv4 = qemu_opt_get_bool(opts, "ipv4", 0), | |
4092 | .has_ipv6 = qemu_opt_get(opts, "ipv6"), | |
4093 | .ipv6 = qemu_opt_get_bool(opts, "ipv6", 0), | |
4094 | }; | |
dafd325d | 4095 | } |
f194a1ae | 4096 | sock->addr = addr; |
dafd325d PM |
4097 | } |
4098 | ||
90a14bfe PM |
4099 | static void qemu_chr_parse_udp(QemuOpts *opts, ChardevBackend *backend, |
4100 | Error **errp) | |
4101 | { | |
4102 | const char *host = qemu_opt_get(opts, "host"); | |
4103 | const char *port = qemu_opt_get(opts, "port"); | |
4104 | const char *localaddr = qemu_opt_get(opts, "localaddr"); | |
4105 | const char *localport = qemu_opt_get(opts, "localport"); | |
4106 | bool has_local = false; | |
4107 | SocketAddress *addr; | |
f194a1ae | 4108 | ChardevUdp *udp; |
90a14bfe PM |
4109 | |
4110 | if (host == NULL || strlen(host) == 0) { | |
4111 | host = "localhost"; | |
4112 | } | |
4113 | if (port == NULL || strlen(port) == 0) { | |
4114 | error_setg(errp, "chardev: udp: remote port not specified"); | |
4115 | return; | |
4116 | } | |
4117 | if (localport == NULL || strlen(localport) == 0) { | |
4118 | localport = "0"; | |
4119 | } else { | |
4120 | has_local = true; | |
4121 | } | |
4122 | if (localaddr == NULL || strlen(localaddr) == 0) { | |
4123 | localaddr = ""; | |
4124 | } else { | |
4125 | has_local = true; | |
4126 | } | |
4127 | ||
32bafa8f | 4128 | udp = backend->u.udp.data = g_new0(ChardevUdp, 1); |
f194a1ae | 4129 | qemu_chr_parse_common(opts, qapi_ChardevUdp_base(udp)); |
90a14bfe PM |
4130 | |
4131 | addr = g_new0(SocketAddress, 1); | |
130257dc | 4132 | addr->type = SOCKET_ADDRESS_KIND_INET; |
32bafa8f EB |
4133 | addr->u.inet.data = g_new(InetSocketAddress, 1); |
4134 | *addr->u.inet.data = (InetSocketAddress) { | |
0399293e EB |
4135 | .host = g_strdup(host), |
4136 | .port = g_strdup(port), | |
4137 | .has_ipv4 = qemu_opt_get(opts, "ipv4"), | |
4138 | .ipv4 = qemu_opt_get_bool(opts, "ipv4", 0), | |
4139 | .has_ipv6 = qemu_opt_get(opts, "ipv6"), | |
4140 | .ipv6 = qemu_opt_get_bool(opts, "ipv6", 0), | |
4141 | }; | |
f194a1ae | 4142 | udp->remote = addr; |
90a14bfe PM |
4143 | |
4144 | if (has_local) { | |
f194a1ae | 4145 | udp->has_local = true; |
90a14bfe | 4146 | addr = g_new0(SocketAddress, 1); |
130257dc | 4147 | addr->type = SOCKET_ADDRESS_KIND_INET; |
32bafa8f EB |
4148 | addr->u.inet.data = g_new(InetSocketAddress, 1); |
4149 | *addr->u.inet.data = (InetSocketAddress) { | |
0399293e EB |
4150 | .host = g_strdup(localaddr), |
4151 | .port = g_strdup(localport), | |
4152 | }; | |
f194a1ae | 4153 | udp->local = addr; |
90a14bfe PM |
4154 | } |
4155 | } | |
4156 | ||
a1698bf1 | 4157 | static const CharDriver *backends[CHARDEV_BACKEND_KIND__MAX]; |
d654f34e | 4158 | |
0b812f31 | 4159 | void register_char_driver(const CharDriver *driver) |
2c5f4882 | 4160 | { |
a1698bf1 | 4161 | backends[driver->kind] = driver; |
2c5f4882 GH |
4162 | } |
4163 | ||
0ec7b3e7 MAL |
4164 | Chardev *qemu_chr_new_from_opts(QemuOpts *opts, |
4165 | Error **errp) | |
191bc01b | 4166 | { |
0aff637e | 4167 | Error *local_err = NULL; |
a1698bf1 | 4168 | const CharDriver *cd = NULL; |
0ec7b3e7 | 4169 | Chardev *chr; |
a1698bf1 | 4170 | int i; |
a61ae7f8 PM |
4171 | ChardevReturn *ret = NULL; |
4172 | ChardevBackend *backend; | |
0b812f31 | 4173 | const char *name = qemu_opt_get(opts, "backend"); |
a61ae7f8 PM |
4174 | const char *id = qemu_opts_id(opts); |
4175 | char *bid = NULL; | |
191bc01b | 4176 | |
0b812f31 | 4177 | if (name == NULL) { |
312fd5f2 | 4178 | error_setg(errp, "chardev: \"%s\" missing backend", |
bd2d80b2 | 4179 | qemu_opts_id(opts)); |
2274ae9d | 4180 | goto err; |
1bbd185f | 4181 | } |
517b3d40 | 4182 | |
0b812f31 | 4183 | if (is_help_option(name)) { |
776a32a0 | 4184 | GString *str = g_string_new(""); |
a1698bf1 MAL |
4185 | for (i = 0; i < ARRAY_SIZE(backends); i++) { |
4186 | cd = backends[i]; | |
4187 | if (cd) { | |
776a32a0 | 4188 | g_string_append_printf(str, "\n%s", ChardevBackendKind_lookup[cd->kind]); |
a1698bf1 | 4189 | if (cd->alias) { |
776a32a0 | 4190 | g_string_append_printf(str, "\n%s", cd->alias); |
a1698bf1 | 4191 | } |
0b812f31 | 4192 | } |
517b3d40 | 4193 | } |
776a32a0 MAL |
4194 | |
4195 | error_report("Available chardev backend types: %s", str->str); | |
4196 | g_string_free(str, true); | |
0b812f31 | 4197 | exit(0); |
517b3d40 LM |
4198 | } |
4199 | ||
4200 | if (id == NULL) { | |
4201 | error_setg(errp, "chardev: no id specified"); | |
4202 | goto err; | |
4203 | } | |
4204 | ||
a1698bf1 MAL |
4205 | for (i = 0; i < ARRAY_SIZE(backends); i++) { |
4206 | cd = backends[i]; | |
4207 | if (!cd) { | |
4208 | continue; | |
4209 | } | |
0b812f31 MAL |
4210 | if (g_strcmp0(ChardevBackendKind_lookup[cd->kind], name) == 0 || |
4211 | g_strcmp0(cd->alias, name) == 0) { | |
191bc01b | 4212 | break; |
d654f34e | 4213 | } |
191bc01b | 4214 | } |
a1698bf1 | 4215 | if (i == ARRAY_SIZE(backends)) { |
0b812f31 | 4216 | error_setg(errp, "chardev: backend \"%s\" not found", name); |
e668287d | 4217 | goto err; |
191bc01b GH |
4218 | } |
4219 | ||
a61ae7f8 | 4220 | backend = g_new0(ChardevBackend, 1); |
edb2fb3c | 4221 | |
a61ae7f8 PM |
4222 | if (qemu_opt_get_bool(opts, "mux", 0)) { |
4223 | bid = g_strdup_printf("%s-base", id); | |
4224 | } | |
2c5f4882 | 4225 | |
a61ae7f8 | 4226 | chr = NULL; |
130257dc | 4227 | backend->type = cd->kind; |
a61ae7f8 PM |
4228 | if (cd->parse) { |
4229 | cd->parse(opts, backend, &local_err); | |
4230 | if (local_err) { | |
4231 | error_propagate(errp, local_err); | |
2c5f4882 GH |
4232 | goto qapi_out; |
4233 | } | |
d0d7708b DB |
4234 | } else { |
4235 | ChardevCommon *cc = g_new0(ChardevCommon, 1); | |
4236 | qemu_chr_parse_common(opts, cc); | |
32bafa8f | 4237 | backend->u.null.data = cc; /* Any ChardevCommon member would work */ |
2c5f4882 | 4238 | } |
d0d7708b | 4239 | |
a61ae7f8 PM |
4240 | ret = qmp_chardev_add(bid ? bid : id, backend, errp); |
4241 | if (!ret) { | |
4242 | goto qapi_out; | |
191bc01b GH |
4243 | } |
4244 | ||
a61ae7f8 PM |
4245 | if (bid) { |
4246 | qapi_free_ChardevBackend(backend); | |
4247 | qapi_free_ChardevReturn(ret); | |
4248 | backend = g_new0(ChardevBackend, 1); | |
32bafa8f | 4249 | backend->u.mux.data = g_new0(ChardevMux, 1); |
130257dc | 4250 | backend->type = CHARDEV_BACKEND_KIND_MUX; |
32bafa8f | 4251 | backend->u.mux.data->chardev = g_strdup(bid); |
a61ae7f8 PM |
4252 | ret = qmp_chardev_add(id, backend, errp); |
4253 | if (!ret) { | |
4254 | chr = qemu_chr_find(bid); | |
4255 | qemu_chr_delete(chr); | |
4256 | chr = NULL; | |
4257 | goto qapi_out; | |
4258 | } | |
bd5c51ee | 4259 | } |
7591c5c1 | 4260 | |
a61ae7f8 | 4261 | chr = qemu_chr_find(id); |
a61ae7f8 PM |
4262 | |
4263 | qapi_out: | |
4264 | qapi_free_ChardevBackend(backend); | |
4265 | qapi_free_ChardevReturn(ret); | |
4266 | g_free(bid); | |
191bc01b | 4267 | return chr; |
2274ae9d GH |
4268 | |
4269 | err: | |
2274ae9d | 4270 | return NULL; |
191bc01b GH |
4271 | } |
4272 | ||
0ec7b3e7 | 4273 | Chardev *qemu_chr_new_noreplay(const char *label, const char *filename) |
6f97dba0 AL |
4274 | { |
4275 | const char *p; | |
0ec7b3e7 | 4276 | Chardev *chr; |
191bc01b | 4277 | QemuOpts *opts; |
bd2d80b2 | 4278 | Error *err = NULL; |
191bc01b | 4279 | |
c845f401 GH |
4280 | if (strstart(filename, "chardev:", &p)) { |
4281 | return qemu_chr_find(p); | |
4282 | } | |
4283 | ||
191bc01b | 4284 | opts = qemu_chr_parse_compat(label, filename); |
7e1b35b4 GH |
4285 | if (!opts) |
4286 | return NULL; | |
6f97dba0 | 4287 | |
b4948be9 | 4288 | chr = qemu_chr_new_from_opts(opts, &err); |
84d18f06 | 4289 | if (err) { |
565f65d2 | 4290 | error_report_err(err); |
bd2d80b2 | 4291 | } |
7e1b35b4 GH |
4292 | if (chr && qemu_opt_get_bool(opts, "mux", 0)) { |
4293 | monitor_init(chr, MONITOR_USE_READLINE); | |
6f97dba0 | 4294 | } |
0a73336d | 4295 | qemu_opts_del(opts); |
6f97dba0 AL |
4296 | return chr; |
4297 | } | |
4298 | ||
0ec7b3e7 | 4299 | Chardev *qemu_chr_new(const char *label, const char *filename) |
33577b47 | 4300 | { |
0ec7b3e7 | 4301 | Chardev *chr; |
b4948be9 | 4302 | chr = qemu_chr_new_noreplay(label, filename); |
33577b47 | 4303 | if (chr) { |
5ebd6703 MAL |
4304 | if (replay_mode != REPLAY_MODE_NONE) { |
4305 | qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_REPLAY); | |
4306 | } | |
777357d7 | 4307 | if (qemu_chr_replay(chr) && CHARDEV_GET_CLASS(chr)->chr_ioctl) { |
776a32a0 MAL |
4308 | error_report("Replay: ioctl is not supported " |
4309 | "for serial devices yet"); | |
33577b47 PD |
4310 | } |
4311 | replay_register_char_driver(chr); | |
4312 | } | |
4313 | return chr; | |
4314 | } | |
4315 | ||
5345fdb4 | 4316 | void qemu_chr_fe_set_echo(CharBackend *be, bool echo) |
c48855e1 | 4317 | { |
0ec7b3e7 | 4318 | Chardev *chr = be->chr; |
5345fdb4 | 4319 | |
777357d7 MAL |
4320 | if (chr && CHARDEV_GET_CLASS(chr)->chr_set_echo) { |
4321 | CHARDEV_GET_CLASS(chr)->chr_set_echo(chr, echo); | |
c48855e1 PB |
4322 | } |
4323 | } | |
4324 | ||
5345fdb4 | 4325 | void qemu_chr_fe_set_open(CharBackend *be, int fe_open) |
7c32c4fe | 4326 | { |
0ec7b3e7 | 4327 | Chardev *chr = be->chr; |
5345fdb4 | 4328 | |
fa394ed6 MAL |
4329 | if (!chr) { |
4330 | return; | |
4331 | } | |
4332 | ||
830896af | 4333 | if (be->fe_open == fe_open) { |
c0c4bd2c HG |
4334 | return; |
4335 | } | |
830896af | 4336 | be->fe_open = fe_open; |
777357d7 MAL |
4337 | if (CHARDEV_GET_CLASS(chr)->chr_set_fe_open) { |
4338 | CHARDEV_GET_CLASS(chr)->chr_set_fe_open(chr, fe_open); | |
7c32c4fe HG |
4339 | } |
4340 | } | |
4341 | ||
5345fdb4 | 4342 | guint qemu_chr_fe_add_watch(CharBackend *be, GIOCondition cond, |
6f1de6b7 | 4343 | GIOFunc func, void *user_data) |
23673ca7 | 4344 | { |
0ec7b3e7 | 4345 | Chardev *s = be->chr; |
23673ca7 AL |
4346 | GSource *src; |
4347 | guint tag; | |
4348 | ||
777357d7 | 4349 | if (!s || CHARDEV_GET_CLASS(s)->chr_add_watch == NULL) { |
6f1de6b7 | 4350 | return 0; |
23673ca7 AL |
4351 | } |
4352 | ||
777357d7 | 4353 | src = CHARDEV_GET_CLASS(s)->chr_add_watch(s, cond); |
62c339c5 | 4354 | if (!src) { |
6f1de6b7 | 4355 | return 0; |
62c339c5 PB |
4356 | } |
4357 | ||
23673ca7 AL |
4358 | g_source_set_callback(src, (GSourceFunc)func, user_data, NULL); |
4359 | tag = g_source_attach(src, NULL); | |
4360 | g_source_unref(src); | |
4361 | ||
4362 | return tag; | |
4363 | } | |
4364 | ||
5345fdb4 | 4365 | void qemu_chr_fe_disconnect(CharBackend *be) |
7d9d17f7 | 4366 | { |
0ec7b3e7 | 4367 | Chardev *chr = be->chr; |
5345fdb4 | 4368 | |
777357d7 MAL |
4369 | if (chr && CHARDEV_GET_CLASS(chr)->chr_disconnect) { |
4370 | CHARDEV_GET_CLASS(chr)->chr_disconnect(chr); | |
7d9d17f7 TM |
4371 | } |
4372 | } | |
4373 | ||
0ec7b3e7 | 4374 | void qemu_chr_delete(Chardev *chr) |
1ad78ea5 MAL |
4375 | { |
4376 | QTAILQ_REMOVE(&chardevs, chr, next); | |
8cddc469 | 4377 | object_unref(OBJECT(chr)); |
1ad78ea5 MAL |
4378 | } |
4379 | ||
c5a415a0 | 4380 | ChardevInfoList *qmp_query_chardev(Error **errp) |
6f97dba0 | 4381 | { |
c5a415a0 | 4382 | ChardevInfoList *chr_list = NULL; |
0ec7b3e7 | 4383 | Chardev *chr; |
6f97dba0 | 4384 | |
72cf2d4f | 4385 | QTAILQ_FOREACH(chr, &chardevs, next) { |
c5a415a0 LC |
4386 | ChardevInfoList *info = g_malloc0(sizeof(*info)); |
4387 | info->value = g_malloc0(sizeof(*info->value)); | |
4388 | info->value->label = g_strdup(chr->label); | |
4389 | info->value->filename = g_strdup(chr->filename); | |
830896af | 4390 | info->value->frontend_open = chr->be && chr->be->fe_open; |
c5a415a0 LC |
4391 | |
4392 | info->next = chr_list; | |
4393 | chr_list = info; | |
6f97dba0 | 4394 | } |
588b3832 | 4395 | |
c5a415a0 | 4396 | return chr_list; |
6f97dba0 | 4397 | } |
c845f401 | 4398 | |
0b812f31 MAL |
4399 | static ChardevBackendInfoList * |
4400 | qmp_prepend_backend(ChardevBackendInfoList *list, const char *name) | |
4401 | { | |
4402 | ChardevBackendInfoList *info = g_malloc0(sizeof(*info)); | |
4403 | info->value = g_malloc0(sizeof(*info->value)); | |
4404 | info->value->name = g_strdup(name); | |
4405 | info->next = list; | |
4406 | return info; | |
4407 | } | |
4408 | ||
77d1c3c6 MK |
4409 | ChardevBackendInfoList *qmp_query_chardev_backends(Error **errp) |
4410 | { | |
4411 | ChardevBackendInfoList *backend_list = NULL; | |
a1698bf1 MAL |
4412 | const CharDriver *c; |
4413 | int i; | |
4414 | ||
4415 | for (i = 0; i < ARRAY_SIZE(backends); i++) { | |
4416 | c = backends[i]; | |
4417 | if (!c) { | |
4418 | continue; | |
4419 | } | |
77d1c3c6 | 4420 | |
0b812f31 MAL |
4421 | backend_list = qmp_prepend_backend(backend_list, |
4422 | ChardevBackendKind_lookup[c->kind]); | |
4423 | if (c->alias) { | |
4424 | backend_list = qmp_prepend_backend(backend_list, c->alias); | |
4425 | } | |
77d1c3c6 MK |
4426 | } |
4427 | ||
4428 | return backend_list; | |
4429 | } | |
4430 | ||
0ec7b3e7 | 4431 | Chardev *qemu_chr_find(const char *name) |
c845f401 | 4432 | { |
0ec7b3e7 | 4433 | Chardev *chr; |
c845f401 | 4434 | |
72cf2d4f | 4435 | QTAILQ_FOREACH(chr, &chardevs, next) { |
c845f401 GH |
4436 | if (strcmp(chr->label, name) != 0) |
4437 | continue; | |
4438 | return chr; | |
4439 | } | |
4440 | return NULL; | |
4441 | } | |
0beb4942 | 4442 | |
4d454574 PB |
4443 | QemuOptsList qemu_chardev_opts = { |
4444 | .name = "chardev", | |
4445 | .implied_opt_name = "backend", | |
4446 | .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head), | |
4447 | .desc = { | |
4448 | { | |
4449 | .name = "backend", | |
4450 | .type = QEMU_OPT_STRING, | |
4451 | },{ | |
4452 | .name = "path", | |
4453 | .type = QEMU_OPT_STRING, | |
4454 | },{ | |
4455 | .name = "host", | |
4456 | .type = QEMU_OPT_STRING, | |
4457 | },{ | |
4458 | .name = "port", | |
4459 | .type = QEMU_OPT_STRING, | |
4460 | },{ | |
4461 | .name = "localaddr", | |
4462 | .type = QEMU_OPT_STRING, | |
4463 | },{ | |
4464 | .name = "localport", | |
4465 | .type = QEMU_OPT_STRING, | |
4466 | },{ | |
4467 | .name = "to", | |
4468 | .type = QEMU_OPT_NUMBER, | |
4469 | },{ | |
4470 | .name = "ipv4", | |
4471 | .type = QEMU_OPT_BOOL, | |
4472 | },{ | |
4473 | .name = "ipv6", | |
4474 | .type = QEMU_OPT_BOOL, | |
4475 | },{ | |
4476 | .name = "wait", | |
4477 | .type = QEMU_OPT_BOOL, | |
4478 | },{ | |
4479 | .name = "server", | |
4480 | .type = QEMU_OPT_BOOL, | |
4481 | },{ | |
4482 | .name = "delay", | |
4483 | .type = QEMU_OPT_BOOL, | |
5dd1f02b CM |
4484 | },{ |
4485 | .name = "reconnect", | |
4486 | .type = QEMU_OPT_NUMBER, | |
4d454574 PB |
4487 | },{ |
4488 | .name = "telnet", | |
4489 | .type = QEMU_OPT_BOOL, | |
a8fb5427 DB |
4490 | },{ |
4491 | .name = "tls-creds", | |
4492 | .type = QEMU_OPT_STRING, | |
4d454574 PB |
4493 | },{ |
4494 | .name = "width", | |
4495 | .type = QEMU_OPT_NUMBER, | |
4496 | },{ | |
4497 | .name = "height", | |
4498 | .type = QEMU_OPT_NUMBER, | |
4499 | },{ | |
4500 | .name = "cols", | |
4501 | .type = QEMU_OPT_NUMBER, | |
4502 | },{ | |
4503 | .name = "rows", | |
4504 | .type = QEMU_OPT_NUMBER, | |
4505 | },{ | |
4506 | .name = "mux", | |
4507 | .type = QEMU_OPT_BOOL, | |
4508 | },{ | |
4509 | .name = "signal", | |
4510 | .type = QEMU_OPT_BOOL, | |
4511 | },{ | |
4512 | .name = "name", | |
4513 | .type = QEMU_OPT_STRING, | |
4514 | },{ | |
4515 | .name = "debug", | |
4516 | .type = QEMU_OPT_NUMBER, | |
51767e7c | 4517 | },{ |
3949e594 | 4518 | .name = "size", |
de1cc36e | 4519 | .type = QEMU_OPT_SIZE, |
bb6fb7c0 GH |
4520 | },{ |
4521 | .name = "chardev", | |
4522 | .type = QEMU_OPT_STRING, | |
31e38a22 OK |
4523 | },{ |
4524 | .name = "append", | |
4525 | .type = QEMU_OPT_BOOL, | |
d0d7708b DB |
4526 | },{ |
4527 | .name = "logfile", | |
4528 | .type = QEMU_OPT_STRING, | |
4529 | },{ | |
4530 | .name = "logappend", | |
4531 | .type = QEMU_OPT_BOOL, | |
4d454574 PB |
4532 | }, |
4533 | { /* end of list */ } | |
4534 | }, | |
4535 | }; | |
f1a1a356 | 4536 | |
ffbdbe59 GH |
4537 | #ifdef _WIN32 |
4538 | ||
777357d7 MAL |
4539 | static void qmp_chardev_open_file(Chardev *chr, |
4540 | ChardevBackend *backend, | |
4541 | bool *be_opened, | |
4542 | Error **errp) | |
ffbdbe59 | 4543 | { |
32bafa8f | 4544 | ChardevFile *file = backend->u.file.data; |
ffbdbe59 | 4545 | HANDLE out; |
c025f689 SW |
4546 | DWORD accessmode; |
4547 | DWORD flags; | |
ffbdbe59 | 4548 | |
e859eda5 | 4549 | if (file->has_in) { |
ffbdbe59 | 4550 | error_setg(errp, "input file not supported"); |
777357d7 | 4551 | return; |
ffbdbe59 GH |
4552 | } |
4553 | ||
c025f689 SW |
4554 | if (file->has_append && file->append) { |
4555 | /* Append to file if it already exists. */ | |
4556 | accessmode = FILE_GENERIC_WRITE & ~FILE_WRITE_DATA; | |
4557 | flags = OPEN_ALWAYS; | |
4558 | } else { | |
4559 | /* Truncate file if it already exists. */ | |
4560 | accessmode = GENERIC_WRITE; | |
4561 | flags = CREATE_ALWAYS; | |
4562 | } | |
4563 | ||
4564 | out = CreateFile(file->out, accessmode, FILE_SHARE_READ, NULL, flags, | |
4565 | FILE_ATTRIBUTE_NORMAL, NULL); | |
ffbdbe59 GH |
4566 | if (out == INVALID_HANDLE_VALUE) { |
4567 | error_setg(errp, "open %s failed", file->out); | |
777357d7 | 4568 | return; |
ffbdbe59 | 4569 | } |
777357d7 MAL |
4570 | |
4571 | qemu_chr_open_win_file(chr, out); | |
ffbdbe59 GH |
4572 | } |
4573 | ||
777357d7 MAL |
4574 | static void qmp_chardev_open_serial(Chardev *chr, |
4575 | ChardevBackend *backend, | |
4576 | bool *be_opened, | |
4577 | Error **errp) | |
d59044ef | 4578 | { |
32bafa8f | 4579 | ChardevHostdev *serial = backend->u.serial.data; |
acbfbe4a | 4580 | |
777357d7 | 4581 | win_chr_init(chr, serial->device, errp); |
d36b2b90 MA |
4582 | } |
4583 | ||
ffbdbe59 GH |
4584 | #else /* WIN32 */ |
4585 | ||
4586 | static int qmp_chardev_open_file_source(char *src, int flags, | |
4587 | Error **errp) | |
4588 | { | |
4589 | int fd = -1; | |
4590 | ||
4591 | TFR(fd = qemu_open(src, flags, 0666)); | |
4592 | if (fd == -1) { | |
20c39760 | 4593 | error_setg_file_open(errp, errno, src); |
ffbdbe59 GH |
4594 | } |
4595 | return fd; | |
4596 | } | |
4597 | ||
777357d7 MAL |
4598 | static void qmp_chardev_open_file(Chardev *chr, |
4599 | ChardevBackend *backend, | |
4600 | bool *be_opened, | |
4601 | Error **errp) | |
ffbdbe59 | 4602 | { |
32bafa8f | 4603 | ChardevFile *file = backend->u.file.data; |
5f758366 | 4604 | int flags, in = -1, out; |
ffbdbe59 | 4605 | |
31e38a22 OK |
4606 | flags = O_WRONLY | O_CREAT | O_BINARY; |
4607 | if (file->has_append && file->append) { | |
4608 | flags |= O_APPEND; | |
4609 | } else { | |
4610 | flags |= O_TRUNC; | |
4611 | } | |
4612 | ||
ffbdbe59 | 4613 | out = qmp_chardev_open_file_source(file->out, flags, errp); |
5f758366 | 4614 | if (out < 0) { |
777357d7 | 4615 | return; |
ffbdbe59 GH |
4616 | } |
4617 | ||
e859eda5 | 4618 | if (file->has_in) { |
ffbdbe59 GH |
4619 | flags = O_RDONLY; |
4620 | in = qmp_chardev_open_file_source(file->in, flags, errp); | |
5f758366 | 4621 | if (in < 0) { |
ffbdbe59 | 4622 | qemu_close(out); |
777357d7 | 4623 | return; |
ffbdbe59 GH |
4624 | } |
4625 | } | |
4626 | ||
777357d7 | 4627 | qemu_chr_open_fd(chr, in, out); |
ffbdbe59 GH |
4628 | } |
4629 | ||
d809ab95 | 4630 | #ifdef HAVE_CHARDEV_SERIAL |
777357d7 MAL |
4631 | static void qmp_chardev_open_serial(Chardev *chr, |
4632 | ChardevBackend *backend, | |
4633 | bool *be_opened, | |
4634 | Error **errp) | |
d59044ef | 4635 | { |
32bafa8f | 4636 | ChardevHostdev *serial = backend->u.serial.data; |
d36b2b90 MA |
4637 | int fd; |
4638 | ||
4639 | fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp); | |
5f758366 | 4640 | if (fd < 0) { |
777357d7 | 4641 | return; |
39099991 | 4642 | } |
f9e8cacc | 4643 | qemu_set_nonblock(fd); |
acbfbe4a | 4644 | tty_serial_init(fd, 115200, 'N', 8, 1); |
b68e956a | 4645 | |
777357d7 | 4646 | qemu_chr_open_fd(chr, fd, fd); |
d36b2b90 | 4647 | } |
6511d396 | 4648 | #endif |
d36b2b90 | 4649 | |
d809ab95 | 4650 | #ifdef HAVE_CHARDEV_PARPORT |
777357d7 MAL |
4651 | static void qmp_chardev_open_parallel(Chardev *chr, |
4652 | ChardevBackend *backend, | |
4653 | bool *be_opened, | |
4654 | Error **errp) | |
d36b2b90 | 4655 | { |
32bafa8f | 4656 | ChardevHostdev *parallel = backend->u.parallel.data; |
d36b2b90 MA |
4657 | int fd; |
4658 | ||
4659 | fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp); | |
5f758366 | 4660 | if (fd < 0) { |
777357d7 | 4661 | return; |
d59044ef | 4662 | } |
777357d7 | 4663 | qemu_chr_open_pp_fd(chr, fd, be_opened, errp); |
d59044ef | 4664 | } |
b68e956a MAL |
4665 | |
4666 | static const CharDriver parallel_driver = { | |
4667 | .kind = CHARDEV_BACKEND_KIND_PARALLEL, | |
4668 | .alias = "parport", | |
4669 | .parse = qemu_chr_parse_parallel, | |
777357d7 MAL |
4670 | }; |
4671 | ||
4672 | static void char_parallel_class_init(ObjectClass *oc, void *data) | |
4673 | { | |
4674 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
4675 | ||
4676 | cc->open = qmp_chardev_open_parallel; | |
b68e956a | 4677 | #if defined(__linux__) |
777357d7 MAL |
4678 | cc->chr_write = null_chr_write; |
4679 | cc->chr_ioctl = pp_ioctl; | |
b68e956a | 4680 | #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) |
777357d7 MAL |
4681 | cc->chr_write = null_chr_write; |
4682 | cc->chr_ioctl = pp_ioctl; | |
b68e956a | 4683 | #endif |
777357d7 MAL |
4684 | } |
4685 | ||
c9305728 MAL |
4686 | static void char_parallel_finalize(Object *obj) |
4687 | { | |
4688 | #if defined(__linux__) | |
4689 | Chardev *chr = CHARDEV(obj); | |
4690 | ParallelChardev *drv = PARALLEL_CHARDEV(chr); | |
4691 | int fd = drv->fd; | |
4692 | ||
4693 | pp_hw_mode(drv, IEEE1284_MODE_COMPAT); | |
4694 | ioctl(fd, PPRELEASE); | |
4695 | close(fd); | |
4696 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); | |
4697 | #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) | |
4698 | /* FIXME: close fd? */ | |
4699 | #endif | |
4700 | } | |
4701 | ||
777357d7 MAL |
4702 | static const TypeInfo char_parallel_type_info = { |
4703 | .name = TYPE_CHARDEV_PARALLEL, | |
4704 | .parent = TYPE_CHARDEV, | |
4705 | .instance_size = sizeof(ParallelChardev), | |
c9305728 | 4706 | .instance_finalize = char_parallel_finalize, |
777357d7 | 4707 | .class_init = char_parallel_class_init, |
b68e956a | 4708 | }; |
d809ab95 | 4709 | #endif |
d59044ef | 4710 | |
ffbdbe59 GH |
4711 | #endif /* WIN32 */ |
4712 | ||
b68e956a MAL |
4713 | static const CharDriver file_driver = { |
4714 | .kind = CHARDEV_BACKEND_KIND_FILE, | |
4715 | .parse = qemu_chr_parse_file_out, | |
777357d7 MAL |
4716 | }; |
4717 | ||
4718 | static void char_file_class_init(ObjectClass *oc, void *data) | |
4719 | { | |
4720 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
4721 | ||
4722 | cc->open = qmp_chardev_open_file; | |
777357d7 MAL |
4723 | } |
4724 | ||
4725 | static const TypeInfo char_file_type_info = { | |
4726 | .name = TYPE_CHARDEV_FILE, | |
4727 | #ifdef _WIN32 | |
4728 | .parent = TYPE_CHARDEV_WIN, | |
b68e956a | 4729 | #else |
777357d7 | 4730 | .parent = TYPE_CHARDEV_FD, |
b68e956a | 4731 | #endif |
777357d7 | 4732 | .class_init = char_file_class_init, |
b68e956a MAL |
4733 | }; |
4734 | ||
4735 | #ifdef HAVE_CHARDEV_SERIAL | |
777357d7 | 4736 | |
b68e956a MAL |
4737 | static const CharDriver serial_driver = { |
4738 | .kind = CHARDEV_BACKEND_KIND_SERIAL, | |
4739 | .alias = "tty", | |
4740 | .parse = qemu_chr_parse_serial, | |
777357d7 MAL |
4741 | }; |
4742 | ||
4743 | static void char_serial_class_init(ObjectClass *oc, void *data) | |
4744 | { | |
4745 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
4746 | ||
4747 | cc->open = qmp_chardev_open_serial; | |
4748 | #ifndef _WIN32 | |
4749 | cc->chr_ioctl = tty_serial_ioctl; | |
777357d7 MAL |
4750 | #endif |
4751 | } | |
4752 | ||
4753 | static const TypeInfo char_serial_type_info = { | |
4754 | .name = TYPE_CHARDEV_SERIAL, | |
b68e956a | 4755 | #ifdef _WIN32 |
777357d7 | 4756 | .parent = TYPE_CHARDEV_WIN, |
b68e956a | 4757 | #else |
777357d7 | 4758 | .parent = TYPE_CHARDEV_FD, |
b68e956a | 4759 | #endif |
777357d7 | 4760 | .class_init = char_serial_class_init, |
b68e956a MAL |
4761 | }; |
4762 | #endif | |
4763 | ||
5dd1f02b CM |
4764 | static gboolean socket_reconnect_timeout(gpointer opaque) |
4765 | { | |
777357d7 MAL |
4766 | Chardev *chr = CHARDEV(opaque); |
4767 | SocketChardev *s = SOCKET_CHARDEV(opaque); | |
317856ca | 4768 | QIOChannelSocket *sioc; |
5dd1f02b CM |
4769 | |
4770 | s->reconnect_timer = 0; | |
4771 | ||
4772 | if (chr->be_open) { | |
4773 | return false; | |
4774 | } | |
4775 | ||
317856ca | 4776 | sioc = qio_channel_socket_new(); |
e93a68e1 | 4777 | tcp_chr_set_client_ioc_name(chr, sioc); |
317856ca DB |
4778 | qio_channel_socket_connect_async(sioc, s->addr, |
4779 | qemu_chr_socket_connected, | |
4780 | chr, NULL); | |
5dd1f02b CM |
4781 | |
4782 | return false; | |
4783 | } | |
4784 | ||
777357d7 MAL |
4785 | static void qmp_chardev_open_socket(Chardev *chr, |
4786 | ChardevBackend *backend, | |
4787 | bool *be_opened, | |
4788 | Error **errp) | |
f6bd5d6e | 4789 | { |
777357d7 | 4790 | SocketChardev *s = SOCKET_CHARDEV(chr); |
32bafa8f | 4791 | ChardevSocket *sock = backend->u.socket.data; |
f6bd5d6e GH |
4792 | SocketAddress *addr = sock->addr; |
4793 | bool do_nodelay = sock->has_nodelay ? sock->nodelay : false; | |
4794 | bool is_listen = sock->has_server ? sock->server : true; | |
4795 | bool is_telnet = sock->has_telnet ? sock->telnet : false; | |
4796 | bool is_waitconnect = sock->has_wait ? sock->wait : false; | |
5dd1f02b | 4797 | int64_t reconnect = sock->has_reconnect ? sock->reconnect : 0; |
317856ca | 4798 | QIOChannelSocket *sioc = NULL; |
43ded1a0 | 4799 | |
130257dc | 4800 | s->is_unix = addr->type == SOCKET_ADDRESS_KIND_UNIX; |
cfb429cb CM |
4801 | s->is_listen = is_listen; |
4802 | s->is_telnet = is_telnet; | |
43ded1a0 | 4803 | s->do_nodelay = do_nodelay; |
a8fb5427 DB |
4804 | if (sock->tls_creds) { |
4805 | Object *creds; | |
4806 | creds = object_resolve_path_component( | |
4807 | object_get_objects_root(), sock->tls_creds); | |
4808 | if (!creds) { | |
4809 | error_setg(errp, "No TLS credentials with id '%s'", | |
4810 | sock->tls_creds); | |
4811 | goto error; | |
4812 | } | |
4813 | s->tls_creds = (QCryptoTLSCreds *) | |
4814 | object_dynamic_cast(creds, | |
4815 | TYPE_QCRYPTO_TLS_CREDS); | |
4816 | if (!s->tls_creds) { | |
4817 | error_setg(errp, "Object with id '%s' is not TLS credentials", | |
4818 | sock->tls_creds); | |
4819 | goto error; | |
4820 | } | |
4821 | object_ref(OBJECT(s->tls_creds)); | |
4822 | if (is_listen) { | |
4823 | if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) { | |
4824 | error_setg(errp, "%s", | |
4825 | "Expected TLS credentials for server endpoint"); | |
4826 | goto error; | |
4827 | } | |
4828 | } else { | |
4829 | if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) { | |
4830 | error_setg(errp, "%s", | |
4831 | "Expected TLS credentials for client endpoint"); | |
4832 | goto error; | |
4833 | } | |
4834 | } | |
4835 | } | |
4836 | ||
37f9e0a2 | 4837 | s->addr = QAPI_CLONE(SocketAddress, sock->addr); |
43ded1a0 | 4838 | |
0a73336d DB |
4839 | qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_RECONNECTABLE); |
4840 | if (s->is_unix) { | |
4841 | qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS); | |
4842 | } | |
4843 | ||
43ded1a0 | 4844 | /* be isn't opened until we get a connection */ |
82878dac | 4845 | *be_opened = false; |
43ded1a0 | 4846 | |
0ff0fad2 DB |
4847 | chr->filename = SocketAddress_to_str("disconnected:", |
4848 | addr, is_listen, is_telnet); | |
f6bd5d6e GH |
4849 | |
4850 | if (is_listen) { | |
43ded1a0 CM |
4851 | if (is_telnet) { |
4852 | s->do_telnetopt = 1; | |
4853 | } | |
5dd1f02b CM |
4854 | } else if (reconnect > 0) { |
4855 | s->reconnect_time = reconnect; | |
f6bd5d6e | 4856 | } |
43ded1a0 | 4857 | |
5008e5b7 | 4858 | if (s->reconnect_time) { |
d7a04fd7 | 4859 | sioc = qio_channel_socket_new(); |
e93a68e1 | 4860 | tcp_chr_set_client_ioc_name(chr, sioc); |
317856ca DB |
4861 | qio_channel_socket_connect_async(sioc, s->addr, |
4862 | qemu_chr_socket_connected, | |
4863 | chr, NULL); | |
08b758b4 | 4864 | } else { |
d7a04fd7 | 4865 | if (s->is_listen) { |
e93a68e1 | 4866 | char *name; |
d7a04fd7 | 4867 | sioc = qio_channel_socket_new(); |
e93a68e1 DB |
4868 | |
4869 | name = g_strdup_printf("chardev-tcp-listener-%s", chr->label); | |
4870 | qio_channel_set_name(QIO_CHANNEL(sioc), name); | |
4871 | g_free(name); | |
4872 | ||
d7a04fd7 MAL |
4873 | if (qio_channel_socket_listen_sync(sioc, s->addr, errp) < 0) { |
4874 | goto error; | |
4875 | } | |
4876 | s->listen_ioc = sioc; | |
4877 | if (is_waitconnect && | |
4878 | qemu_chr_wait_connected(chr, errp) < 0) { | |
2c3a5dcb | 4879 | return; |
d7a04fd7 MAL |
4880 | } |
4881 | if (!s->ioc) { | |
4882 | s->listen_tag = qio_channel_add_watch( | |
4883 | QIO_CHANNEL(s->listen_ioc), G_IO_IN, | |
4884 | tcp_chr_accept, chr, NULL); | |
4885 | } | |
4886 | } else if (qemu_chr_wait_connected(chr, errp) < 0) { | |
08b758b4 DB |
4887 | goto error; |
4888 | } | |
43ded1a0 CM |
4889 | } |
4890 | ||
777357d7 | 4891 | return; |
a8fb5427 | 4892 | |
777357d7 | 4893 | error: |
08b758b4 DB |
4894 | if (sioc) { |
4895 | object_unref(OBJECT(sioc)); | |
4896 | } | |
f6bd5d6e GH |
4897 | } |
4898 | ||
b68e956a MAL |
4899 | static const CharDriver socket_driver = { |
4900 | .kind = CHARDEV_BACKEND_KIND_SOCKET, | |
4901 | .parse = qemu_chr_parse_socket, | |
b68e956a MAL |
4902 | }; |
4903 | ||
777357d7 MAL |
4904 | static void char_socket_class_init(ObjectClass *oc, void *data) |
4905 | { | |
4906 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
4907 | ||
4908 | cc->open = qmp_chardev_open_socket; | |
4909 | cc->chr_wait_connected = tcp_chr_wait_connected; | |
4910 | cc->chr_write = tcp_chr_write; | |
4911 | cc->chr_sync_read = tcp_chr_sync_read; | |
4912 | cc->chr_disconnect = tcp_chr_disconnect; | |
4913 | cc->get_msgfds = tcp_get_msgfds; | |
4914 | cc->set_msgfds = tcp_set_msgfds; | |
4915 | cc->chr_add_client = tcp_chr_add_client; | |
4916 | cc->chr_add_watch = tcp_chr_add_watch; | |
4917 | cc->chr_update_read_handler = tcp_chr_update_read_handler; | |
777357d7 MAL |
4918 | } |
4919 | ||
4920 | static const TypeInfo char_socket_type_info = { | |
4921 | .name = TYPE_CHARDEV_SOCKET, | |
4922 | .parent = TYPE_CHARDEV, | |
4923 | .instance_size = sizeof(SocketChardev), | |
2c3a5dcb | 4924 | .instance_finalize = char_socket_finalize, |
777357d7 MAL |
4925 | .class_init = char_socket_class_init, |
4926 | }; | |
4927 | ||
4928 | static void qmp_chardev_open_udp(Chardev *chr, | |
4929 | ChardevBackend *backend, | |
4930 | bool *be_opened, | |
4931 | Error **errp) | |
3ecc059d | 4932 | { |
32bafa8f | 4933 | ChardevUdp *udp = backend->u.udp.data; |
9894dc0c | 4934 | QIOChannelSocket *sioc = qio_channel_socket_new(); |
e93a68e1 | 4935 | char *name; |
777357d7 | 4936 | UdpChardev *s = UDP_CHARDEV(chr); |
3ecc059d | 4937 | |
9894dc0c | 4938 | if (qio_channel_socket_dgram_sync(sioc, |
150dcd1a | 4939 | udp->local, udp->remote, |
9894dc0c DB |
4940 | errp) < 0) { |
4941 | object_unref(OBJECT(sioc)); | |
777357d7 | 4942 | return; |
acbfbe4a | 4943 | } |
e93a68e1 DB |
4944 | |
4945 | name = g_strdup_printf("chardev-udp-%s", chr->label); | |
4946 | qio_channel_set_name(QIO_CHANNEL(sioc), name); | |
4947 | g_free(name); | |
4948 | ||
acbfbe4a | 4949 | s->ioc = QIO_CHANNEL(sioc); |
acbfbe4a MAL |
4950 | /* be isn't opened until we get a connection */ |
4951 | *be_opened = false; | |
3ecc059d GH |
4952 | } |
4953 | ||
b68e956a MAL |
4954 | static const CharDriver udp_driver = { |
4955 | .kind = CHARDEV_BACKEND_KIND_UDP, | |
4956 | .parse = qemu_chr_parse_udp, | |
777357d7 MAL |
4957 | }; |
4958 | ||
4959 | static void char_udp_class_init(ObjectClass *oc, void *data) | |
4960 | { | |
4961 | ChardevClass *cc = CHARDEV_CLASS(oc); | |
4962 | ||
4963 | cc->open = qmp_chardev_open_udp; | |
4964 | cc->chr_write = udp_chr_write; | |
4965 | cc->chr_update_read_handler = udp_chr_update_read_handler; | |
777357d7 MAL |
4966 | } |
4967 | ||
4968 | static const TypeInfo char_udp_type_info = { | |
4969 | .name = TYPE_CHARDEV_UDP, | |
4970 | .parent = TYPE_CHARDEV, | |
4971 | .instance_size = sizeof(UdpChardev), | |
819aad23 | 4972 | .instance_finalize = char_udp_finalize, |
777357d7 | 4973 | .class_init = char_udp_class_init, |
b68e956a | 4974 | }; |
0a73336d | 4975 | |
0ec7b3e7 | 4976 | bool qemu_chr_has_feature(Chardev *chr, |
0a73336d DB |
4977 | CharDriverFeature feature) |
4978 | { | |
4979 | return test_bit(feature, chr->features); | |
4980 | } | |
4981 | ||
0ec7b3e7 | 4982 | void qemu_chr_set_feature(Chardev *chr, |
0a73336d DB |
4983 | CharDriverFeature feature) |
4984 | { | |
4985 | return set_bit(feature, chr->features); | |
4986 | } | |
4987 | ||
777357d7 MAL |
4988 | static const ChardevClass *char_get_class(const char *driver, Error **errp) |
4989 | { | |
4990 | ObjectClass *oc; | |
4991 | const ChardevClass *cc; | |
4992 | char *typename = g_strdup_printf("chardev-%s", driver); | |
4993 | ||
4994 | oc = object_class_by_name(typename); | |
4995 | g_free(typename); | |
4996 | ||
4997 | if (!object_class_dynamic_cast(oc, TYPE_CHARDEV)) { | |
4998 | error_setg(errp, "'%s' is not a valid char driver name", driver); | |
4999 | return NULL; | |
5000 | } | |
5001 | ||
5002 | if (object_class_is_abstract(oc)) { | |
5003 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver", | |
5004 | "abstract device type"); | |
5005 | return NULL; | |
5006 | } | |
5007 | ||
5008 | cc = CHARDEV_CLASS(oc); | |
5009 | if (cc->internal) { | |
5010 | error_setg(errp, "'%s' is not a valid char driver name", driver); | |
5011 | return NULL; | |
5012 | } | |
5013 | ||
5014 | return cc; | |
5015 | } | |
5016 | ||
5017 | Chardev *qemu_chardev_new(const char *id, const char *typename, | |
5018 | ChardevBackend *backend, Error **errp) | |
f1a1a356 | 5019 | { |
0ec7b3e7 | 5020 | Chardev *chr = NULL; |
eaeba653 | 5021 | Error *local_err = NULL; |
82878dac | 5022 | bool be_opened = true; |
f1a1a356 | 5023 | |
777357d7 | 5024 | assert(g_str_has_prefix(typename, "chardev-")); |
f1a1a356 | 5025 | |
777357d7 MAL |
5026 | chr = CHARDEV(object_new(typename)); |
5027 | chr->label = g_strdup(id); | |
4ca17281 | 5028 | |
777357d7 | 5029 | qemu_char_open(chr, backend, &be_opened, &local_err); |
a1698bf1 MAL |
5030 | if (local_err) { |
5031 | error_propagate(errp, local_err); | |
777357d7 MAL |
5032 | object_unref(OBJECT(chr)); |
5033 | return NULL; | |
eaeba653 PB |
5034 | } |
5035 | ||
eaeba653 | 5036 | if (!chr->filename) { |
777357d7 | 5037 | chr->filename = g_strdup(typename + 8); |
f1a1a356 | 5038 | } |
82878dac | 5039 | if (be_opened) { |
eaeba653 PB |
5040 | qemu_chr_be_event(chr, CHR_EVENT_OPENED); |
5041 | } | |
777357d7 MAL |
5042 | |
5043 | return chr; | |
5044 | } | |
5045 | ||
5046 | ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend, | |
5047 | Error **errp) | |
5048 | { | |
5049 | const ChardevClass *cc; | |
5050 | ChardevReturn *ret; | |
5051 | Chardev *chr; | |
5052 | ||
5053 | chr = qemu_chr_find(id); | |
5054 | if (chr) { | |
5055 | error_setg(errp, "Chardev '%s' already exists", id); | |
5056 | return NULL; | |
5057 | } | |
5058 | ||
5059 | cc = char_get_class(ChardevBackendKind_lookup[backend->type], errp); | |
5060 | if (!cc) { | |
5061 | return NULL; | |
5062 | } | |
5063 | ||
5064 | chr = qemu_chardev_new(id, object_class_get_name(OBJECT_CLASS(cc)), | |
5065 | backend, errp); | |
5066 | if (!chr) { | |
5067 | return NULL; | |
5068 | } | |
5069 | ||
5070 | ret = g_new0(ChardevReturn, 1); | |
5071 | if (CHARDEV_IS_PTY(chr)) { | |
5072 | ret->pty = g_strdup(chr->filename + 4); | |
5073 | ret->has_pty = true; | |
5074 | } | |
5075 | ||
eaeba653 PB |
5076 | QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
5077 | return ret; | |
f1a1a356 GH |
5078 | } |
5079 | ||
5080 | void qmp_chardev_remove(const char *id, Error **errp) | |
5081 | { | |
0ec7b3e7 | 5082 | Chardev *chr; |
f1a1a356 GH |
5083 | |
5084 | chr = qemu_chr_find(id); | |
8108fd3e | 5085 | if (chr == NULL) { |
f1a1a356 GH |
5086 | error_setg(errp, "Chardev '%s' not found", id); |
5087 | return; | |
5088 | } | |
a4afa548 | 5089 | if (qemu_chr_is_busy(chr)) { |
f1a1a356 GH |
5090 | error_setg(errp, "Chardev '%s' is busy", id); |
5091 | return; | |
5092 | } | |
5ebd6703 | 5093 | if (qemu_chr_replay(chr)) { |
33577b47 PD |
5094 | error_setg(errp, |
5095 | "Chardev '%s' cannot be unplugged in record/replay mode", id); | |
5096 | return; | |
5097 | } | |
f1a1a356 GH |
5098 | qemu_chr_delete(chr); |
5099 | } | |
d654f34e | 5100 | |
aa5cb7f5 | 5101 | void qemu_chr_cleanup(void) |
c1111a24 | 5102 | { |
0ec7b3e7 | 5103 | Chardev *chr, *tmp; |
c1111a24 MAL |
5104 | |
5105 | QTAILQ_FOREACH_SAFE(chr, &chardevs, next, tmp) { | |
5106 | qemu_chr_delete(chr); | |
5107 | } | |
5108 | } | |
5109 | ||
d654f34e AL |
5110 | static void register_types(void) |
5111 | { | |
777357d7 MAL |
5112 | static const struct { |
5113 | const CharDriver *driver; | |
5114 | const TypeInfo *type; | |
5115 | } chardevs[] = { | |
5116 | { &null_driver, &char_null_type_info }, | |
5117 | { &socket_driver, &char_socket_type_info }, | |
5118 | { &udp_driver, &char_udp_type_info }, | |
5119 | { &ringbuf_driver, &char_ringbuf_type_info }, | |
5120 | { &file_driver, &char_file_type_info }, | |
5121 | { &stdio_driver, &char_stdio_type_info }, | |
b68e956a | 5122 | #ifdef HAVE_CHARDEV_SERIAL |
777357d7 | 5123 | { &serial_driver, &char_serial_type_info }, |
6511d396 | 5124 | #endif |
38bfb1a6 | 5125 | #ifdef HAVE_CHARDEV_PARPORT |
777357d7 | 5126 | { ¶llel_driver, &char_parallel_type_info }, |
38bfb1a6 | 5127 | #endif |
c2e75a43 | 5128 | #ifdef HAVE_CHARDEV_PTY |
777357d7 | 5129 | { &pty_driver, &char_pty_type_info }, |
c2e75a43 | 5130 | #endif |
122e5ed4 | 5131 | #ifdef _WIN32 |
777357d7 | 5132 | { &console_driver, &char_console_type_info }, |
122e5ed4 | 5133 | #endif |
777357d7 MAL |
5134 | { &pipe_driver, &char_pipe_type_info }, |
5135 | { &mux_driver, &char_mux_type_info }, | |
5136 | { &memory_driver, &char_memory_type_info } | |
0b812f31 | 5137 | }; |
b68e956a | 5138 | int i; |
0b812f31 | 5139 | |
777357d7 MAL |
5140 | type_register_static(&char_type_info); |
5141 | #ifndef _WIN32 | |
5142 | type_register_static(&char_fd_type_info); | |
5143 | #else | |
5144 | type_register_static(&char_win_type_info); | |
5145 | type_register_static(&char_win_stdio_type_info); | |
5146 | #endif | |
5147 | for (i = 0; i < ARRAY_SIZE(chardevs); i++) { | |
5148 | type_register_static(chardevs[i].type); | |
5149 | register_char_driver(chardevs[i].driver); | |
0b812f31 MAL |
5150 | } |
5151 | ||
7b7ab18d MR |
5152 | /* this must be done after machine init, since we register FEs with muxes |
5153 | * as part of realize functions like serial_isa_realizefn when -nographic | |
5154 | * is specified | |
5155 | */ | |
5156 | qemu_add_machine_init_done_notifier(&muxes_realize_notify); | |
d654f34e AL |
5157 | } |
5158 | ||
5159 | type_init(register_types); |