![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to qemu-char.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Qemu by Fabrice Bellard] / qemu|
Return to qemu-char.c CVS log | Up to [Qemu by Fabrice Bellard] / qemu |
1.1 root 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: */
24: #include "qemu-common.h"
25: #include "net.h"
1.1.1.4 root 26: #include "monitor.h"
1.1 root 27: #include "console.h"
28: #include "sysemu.h"
29: #include "qemu-timer.h"
30: #include "qemu-char.h"
31: #include "hw/usb.h"
32: #include "hw/baum.h"
33: #include "hw/msmouse.h"
1.1.1.12! root 34: #include "qmp-commands.h"
1.1 root 35:
36: #include <unistd.h>
37: #include <fcntl.h>
38: #include <time.h>
39: #include <errno.h>
40: #include <sys/time.h>
41: #include <zlib.h>
42:
43: #ifndef _WIN32
44: #include <sys/times.h>
45: #include <sys/wait.h>
46: #include <termios.h>
47: #include <sys/mman.h>
48: #include <sys/ioctl.h>
49: #include <sys/resource.h>
50: #include <sys/socket.h>
51: #include <netinet/in.h>
52: #include <net/if.h>
53: #include <arpa/inet.h>
54: #include <dirent.h>
55: #include <netdb.h>
56: #include <sys/select.h>
1.1.1.5 root 57: #ifdef CONFIG_BSD
1.1 root 58: #include <sys/stat.h>
1.1.1.5 root 59: #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
1.1 root 60: #include <libutil.h>
61: #include <dev/ppbus/ppi.h>
62: #include <dev/ppbus/ppbconf.h>
1.1.1.5 root 63: #if defined(__GLIBC__)
64: #include <pty.h>
65: #endif
1.1.1.4 root 66: #elif defined(__DragonFly__)
67: #include <libutil.h>
68: #include <dev/misc/ppi/ppi.h>
69: #include <bus/ppbus/ppbconf.h>
1.1 root 70: #else
71: #include <util.h>
72: #endif
73: #else
74: #ifdef __linux__
75: #include <pty.h>
76:
77: #include <linux/ppdev.h>
78: #include <linux/parport.h>
79: #endif
80: #ifdef __sun__
81: #include <sys/stat.h>
82: #include <sys/ethernet.h>
83: #include <sys/sockio.h>
84: #include <netinet/arp.h>
85: #include <netinet/in.h>
86: #include <netinet/in_systm.h>
87: #include <netinet/ip.h>
88: #include <netinet/ip_icmp.h> // must come after ip.h
89: #include <netinet/udp.h>
90: #include <netinet/tcp.h>
91: #include <net/if.h>
92: #include <syslog.h>
93: #include <stropts.h>
94: #endif
95: #endif
96: #endif
97:
98: #include "qemu_socket.h"
1.1.1.9 root 99: #include "ui/qemu-spice.h"
1.1 root 100:
1.1.1.5 root 101: #define READ_BUF_LEN 4096
102:
1.1 root 103: /***********************************************************/
104: /* character device */
105:
1.1.1.5 root 106: static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
107: QTAILQ_HEAD_INITIALIZER(chardevs);
1.1.1.2 root 108:
1.1.1.12! root 109: void qemu_chr_be_event(CharDriverState *s, int event)
1.1 root 110: {
1.1.1.8 root 111: /* Keep track if the char device is open */
112: switch (event) {
113: case CHR_EVENT_OPENED:
114: s->opened = 1;
115: break;
116: case CHR_EVENT_CLOSED:
117: s->opened = 0;
118: break;
119: }
120:
1.1 root 121: if (!s->chr_event)
122: return;
123: s->chr_event(s->handler_opaque, event);
124: }
125:
1.1.1.5 root 126: static void qemu_chr_generic_open_bh(void *opaque)
1.1 root 127: {
128: CharDriverState *s = opaque;
1.1.1.12! root 129: qemu_chr_be_event(s, CHR_EVENT_OPENED);
1.1 root 130: qemu_bh_delete(s->bh);
131: s->bh = NULL;
132: }
133:
1.1.1.5 root 134: void qemu_chr_generic_open(CharDriverState *s)
1.1 root 135: {
1.1.1.5 root 136: if (s->bh == NULL) {
137: s->bh = qemu_bh_new(qemu_chr_generic_open_bh, s);
1.1 root 138: qemu_bh_schedule(s->bh);
139: }
140: }
141:
1.1.1.12! root 142: int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
1.1 root 143: {
144: return s->chr_write(s, buf, len);
145: }
146:
1.1.1.12! root 147: int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
1.1 root 148: {
149: if (!s->chr_ioctl)
150: return -ENOTSUP;
151: return s->chr_ioctl(s, cmd, arg);
152: }
153:
1.1.1.12! root 154: int qemu_chr_be_can_write(CharDriverState *s)
1.1 root 155: {
156: if (!s->chr_can_read)
157: return 0;
158: return s->chr_can_read(s->handler_opaque);
159: }
160:
1.1.1.12! root 161: void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
1.1 root 162: {
163: s->chr_read(s->handler_opaque, buf, len);
164: }
165:
1.1.1.12! root 166: int qemu_chr_fe_get_msgfd(CharDriverState *s)
1.1.1.4 root 167: {
168: return s->get_msgfd ? s->get_msgfd(s) : -1;
169: }
170:
1.1.1.11 root 171: int qemu_chr_add_client(CharDriverState *s, int fd)
172: {
173: return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
174: }
175:
1.1 root 176: void qemu_chr_accept_input(CharDriverState *s)
177: {
178: if (s->chr_accept_input)
179: s->chr_accept_input(s);
180: }
181:
1.1.1.12! root 182: void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
1.1 root 183: {
1.1.1.5 root 184: char buf[READ_BUF_LEN];
1.1 root 185: va_list ap;
186: va_start(ap, fmt);
187: vsnprintf(buf, sizeof(buf), fmt, ap);
1.1.1.12! root 188: qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
1.1 root 189: va_end(ap);
190: }
191:
192: void qemu_chr_add_handlers(CharDriverState *s,
1.1.1.8 root 193: IOCanReadHandler *fd_can_read,
1.1 root 194: IOReadHandler *fd_read,
195: IOEventHandler *fd_event,
196: void *opaque)
197: {
1.1.1.11 root 198: if (!opaque && !fd_can_read && !fd_read && !fd_event) {
199: /* chr driver being released. */
200: ++s->avail_connections;
201: }
1.1 root 202: s->chr_can_read = fd_can_read;
203: s->chr_read = fd_read;
204: s->chr_event = fd_event;
205: s->handler_opaque = opaque;
206: if (s->chr_update_read_handler)
207: s->chr_update_read_handler(s);
1.1.1.8 root 208:
209: /* We're connecting to an already opened device, so let's make sure we
210: also get the open event */
211: if (s->opened) {
212: qemu_chr_generic_open(s);
213: }
1.1 root 214: }
215:
216: static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
217: {
218: return len;
219: }
220:
1.1.1.11 root 221: static int qemu_chr_open_null(QemuOpts *opts, CharDriverState **_chr)
1.1 root 222: {
223: CharDriverState *chr;
224:
1.1.1.12! root 225: chr = g_malloc0(sizeof(CharDriverState));
1.1 root 226: chr->chr_write = null_chr_write;
1.1.1.11 root 227:
228: *_chr= chr;
229: return 0;
1.1 root 230: }
231:
232: /* MUX driver for serial I/O splitting */
233: #define MAX_MUX 4
234: #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
235: #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
236: typedef struct {
1.1.1.8 root 237: IOCanReadHandler *chr_can_read[MAX_MUX];
1.1 root 238: IOReadHandler *chr_read[MAX_MUX];
239: IOEventHandler *chr_event[MAX_MUX];
240: void *ext_opaque[MAX_MUX];
241: CharDriverState *drv;
1.1.1.5 root 242: int focus;
1.1 root 243: int mux_cnt;
244: int term_got_escape;
245: int max_size;
1.1.1.2 root 246: /* Intermediate input buffer allows to catch escape sequences even if the
247: currently active device is not accepting any input - but only until it
248: is full as well. */
249: unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
250: int prod[MAX_MUX];
251: int cons[MAX_MUX];
1.1.1.4 root 252: int timestamps;
253: int linestart;
254: int64_t timestamps_start;
1.1 root 255: } MuxDriver;
256:
257:
258: static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
259: {
260: MuxDriver *d = chr->opaque;
261: int ret;
1.1.1.4 root 262: if (!d->timestamps) {
1.1 root 263: ret = d->drv->chr_write(d->drv, buf, len);
264: } else {
265: int i;
266:
267: ret = 0;
1.1.1.4 root 268: for (i = 0; i < len; i++) {
269: if (d->linestart) {
1.1 root 270: char buf1[64];
271: int64_t ti;
272: int secs;
273:
1.1.1.11 root 274: ti = qemu_get_clock_ms(rt_clock);
1.1.1.4 root 275: if (d->timestamps_start == -1)
276: d->timestamps_start = ti;
277: ti -= d->timestamps_start;
1.1 root 278: secs = ti / 1000;
279: snprintf(buf1, sizeof(buf1),
280: "[%02d:%02d:%02d.%03d] ",
281: secs / 3600,
282: (secs / 60) % 60,
283: secs % 60,
284: (int)(ti % 1000));
285: d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
1.1.1.4 root 286: d->linestart = 0;
287: }
288: ret += d->drv->chr_write(d->drv, buf+i, 1);
289: if (buf[i] == '\n') {
290: d->linestart = 1;
1.1 root 291: }
292: }
293: }
294: return ret;
295: }
296:
297: static const char * const mux_help[] = {
298: "% h print this help\n\r",
299: "% x exit emulator\n\r",
300: "% s save disk data back to file (if -snapshot)\n\r",
301: "% t toggle console timestamps\n\r"
302: "% b send break (magic sysrq)\n\r",
303: "% c switch between console and monitor\n\r",
304: "% % sends %\n\r",
305: NULL
306: };
307:
308: int term_escape_char = 0x01; /* ctrl-a is used for escape */
309: static void mux_print_help(CharDriverState *chr)
310: {
311: int i, j;
312: char ebuf[15] = "Escape-Char";
313: char cbuf[50] = "\n\r";
314:
315: if (term_escape_char > 0 && term_escape_char < 26) {
316: snprintf(cbuf, sizeof(cbuf), "\n\r");
317: snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
318: } else {
319: snprintf(cbuf, sizeof(cbuf),
320: "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
321: term_escape_char);
322: }
323: chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
324: for (i = 0; mux_help[i] != NULL; i++) {
325: for (j=0; mux_help[i][j] != '\0'; j++) {
326: if (mux_help[i][j] == '%')
327: chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
328: else
329: chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
330: }
331: }
332: }
333:
1.1.1.4 root 334: static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
335: {
336: if (d->chr_event[mux_nr])
337: d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
338: }
339:
1.1 root 340: static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
341: {
342: if (d->term_got_escape) {
343: d->term_got_escape = 0;
344: if (ch == term_escape_char)
345: goto send_char;
346: switch(ch) {
347: case '?':
348: case 'h':
349: mux_print_help(chr);
350: break;
351: case 'x':
352: {
353: const char *term = "QEMU: Terminated\n\r";
354: chr->chr_write(chr,(uint8_t *)term,strlen(term));
355: exit(0);
356: break;
357: }
358: case 's':
1.1.1.8 root 359: bdrv_commit_all();
1.1 root 360: break;
361: case 'b':
1.1.1.12! root 362: qemu_chr_be_event(chr, CHR_EVENT_BREAK);
1.1 root 363: break;
364: case 'c':
365: /* Switch to the next registered device */
1.1.1.5 root 366: mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
367: d->focus++;
368: if (d->focus >= d->mux_cnt)
369: d->focus = 0;
370: mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
1.1.1.4 root 371: break;
372: case 't':
373: d->timestamps = !d->timestamps;
374: d->timestamps_start = -1;
375: d->linestart = 0;
1.1 root 376: break;
377: }
378: } else if (ch == term_escape_char) {
379: d->term_got_escape = 1;
380: } else {
381: send_char:
382: return 1;
383: }
384: return 0;
385: }
386:
387: static void mux_chr_accept_input(CharDriverState *chr)
388: {
389: MuxDriver *d = chr->opaque;
1.1.1.5 root 390: int m = d->focus;
1.1 root 391:
1.1.1.2 root 392: while (d->prod[m] != d->cons[m] &&
1.1 root 393: d->chr_can_read[m] &&
394: d->chr_can_read[m](d->ext_opaque[m])) {
395: d->chr_read[m](d->ext_opaque[m],
1.1.1.2 root 396: &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
1.1 root 397: }
398: }
399:
400: static int mux_chr_can_read(void *opaque)
401: {
402: CharDriverState *chr = opaque;
403: MuxDriver *d = chr->opaque;
1.1.1.5 root 404: int m = d->focus;
1.1 root 405:
1.1.1.2 root 406: if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
1.1 root 407: return 1;
1.1.1.2 root 408: if (d->chr_can_read[m])
409: return d->chr_can_read[m](d->ext_opaque[m]);
1.1 root 410: return 0;
411: }
412:
413: static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
414: {
415: CharDriverState *chr = opaque;
416: MuxDriver *d = chr->opaque;
1.1.1.5 root 417: int m = d->focus;
1.1 root 418: int i;
419:
420: mux_chr_accept_input (opaque);
421:
422: for(i = 0; i < size; i++)
423: if (mux_proc_byte(chr, d, buf[i])) {
1.1.1.2 root 424: if (d->prod[m] == d->cons[m] &&
1.1 root 425: d->chr_can_read[m] &&
426: d->chr_can_read[m](d->ext_opaque[m]))
427: d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
428: else
1.1.1.2 root 429: d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
1.1 root 430: }
431: }
432:
433: static void mux_chr_event(void *opaque, int event)
434: {
435: CharDriverState *chr = opaque;
436: MuxDriver *d = chr->opaque;
437: int i;
438:
439: /* Send the event to all registered listeners */
440: for (i = 0; i < d->mux_cnt; i++)
1.1.1.4 root 441: mux_chr_send_event(d, i, event);
1.1 root 442: }
443:
444: static void mux_chr_update_read_handler(CharDriverState *chr)
445: {
446: MuxDriver *d = chr->opaque;
447:
448: if (d->mux_cnt >= MAX_MUX) {
449: fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
450: return;
451: }
452: d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
453: d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
454: d->chr_read[d->mux_cnt] = chr->chr_read;
455: d->chr_event[d->mux_cnt] = chr->chr_event;
456: /* Fix up the real driver with mux routines */
457: if (d->mux_cnt == 0) {
458: qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
459: mux_chr_event, chr);
460: }
1.1.1.5 root 461: if (d->focus != -1) {
462: mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
463: }
464: d->focus = d->mux_cnt;
1.1 root 465: d->mux_cnt++;
1.1.1.5 root 466: mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
1.1 root 467: }
468:
469: static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
470: {
471: CharDriverState *chr;
472: MuxDriver *d;
473:
1.1.1.12! root 474: chr = g_malloc0(sizeof(CharDriverState));
! 475: d = g_malloc0(sizeof(MuxDriver));
1.1 root 476:
477: chr->opaque = d;
478: d->drv = drv;
1.1.1.5 root 479: d->focus = -1;
1.1 root 480: chr->chr_write = mux_chr_write;
481: chr->chr_update_read_handler = mux_chr_update_read_handler;
482: chr->chr_accept_input = mux_chr_accept_input;
1.1.1.11 root 483: /* Frontend guest-open / -close notification is not support with muxes */
484: chr->chr_guest_open = NULL;
485: chr->chr_guest_close = NULL;
1.1.1.8 root 486:
487: /* Muxes are always open on creation */
488: qemu_chr_generic_open(chr);
489:
1.1 root 490: return chr;
491: }
492:
493:
494: #ifdef _WIN32
495: int send_all(int fd, const void *buf, int len1)
496: {
497: int ret, len;
498:
499: len = len1;
500: while (len > 0) {
501: ret = send(fd, buf, len, 0);
502: if (ret < 0) {
503: errno = WSAGetLastError();
504: if (errno != WSAEWOULDBLOCK) {
505: return -1;
506: }
507: } else if (ret == 0) {
508: break;
509: } else {
510: buf += ret;
511: len -= ret;
512: }
513: }
514: return len1 - len;
515: }
516:
517: #else
518:
1.1.1.9 root 519: int send_all(int fd, const void *_buf, int len1)
1.1 root 520: {
521: int ret, len;
1.1.1.9 root 522: const uint8_t *buf = _buf;
1.1 root 523:
524: len = len1;
525: while (len > 0) {
526: ret = write(fd, buf, len);
527: if (ret < 0) {
528: if (errno != EINTR && errno != EAGAIN)
529: return -1;
530: } else if (ret == 0) {
531: break;
532: } else {
533: buf += ret;
534: len -= ret;
535: }
536: }
537: return len1 - len;
538: }
539: #endif /* !_WIN32 */
540:
1.1.1.12! root 541: #define STDIO_MAX_CLIENTS 1
! 542: static int stdio_nb_clients;
! 543:
1.1 root 544: #ifndef _WIN32
545:
546: typedef struct {
547: int fd_in, fd_out;
548: int max_size;
549: } FDCharDriver;
550:
551:
552: static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
553: {
554: FDCharDriver *s = chr->opaque;
555: return send_all(s->fd_out, buf, len);
556: }
557:
558: static int fd_chr_read_poll(void *opaque)
559: {
560: CharDriverState *chr = opaque;
561: FDCharDriver *s = chr->opaque;
562:
1.1.1.12! root 563: s->max_size = qemu_chr_be_can_write(chr);
1.1 root 564: return s->max_size;
565: }
566:
567: static void fd_chr_read(void *opaque)
568: {
569: CharDriverState *chr = opaque;
570: FDCharDriver *s = chr->opaque;
571: int size, len;
1.1.1.5 root 572: uint8_t buf[READ_BUF_LEN];
1.1 root 573:
574: len = sizeof(buf);
575: if (len > s->max_size)
576: len = s->max_size;
577: if (len == 0)
578: return;
579: size = read(s->fd_in, buf, len);
580: if (size == 0) {
581: /* FD has been closed. Remove it from the active list. */
582: qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
1.1.1.12! root 583: qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1.1 root 584: return;
585: }
586: if (size > 0) {
1.1.1.12! root 587: qemu_chr_be_write(chr, buf, size);
1.1 root 588: }
589: }
590:
591: static void fd_chr_update_read_handler(CharDriverState *chr)
592: {
593: FDCharDriver *s = chr->opaque;
594:
595: if (s->fd_in >= 0) {
1.1.1.4 root 596: if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
1.1 root 597: } else {
598: qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
599: fd_chr_read, NULL, chr);
600: }
601: }
602: }
603:
604: static void fd_chr_close(struct CharDriverState *chr)
605: {
606: FDCharDriver *s = chr->opaque;
607:
608: if (s->fd_in >= 0) {
1.1.1.4 root 609: if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
1.1 root 610: } else {
611: qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
612: }
613: }
614:
1.1.1.12! root 615: g_free(s);
! 616: qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1.1 root 617: }
618:
619: /* open a character device to a unix fd */
620: static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
621: {
622: CharDriverState *chr;
623: FDCharDriver *s;
624:
1.1.1.12! root 625: chr = g_malloc0(sizeof(CharDriverState));
! 626: s = g_malloc0(sizeof(FDCharDriver));
1.1 root 627: s->fd_in = fd_in;
628: s->fd_out = fd_out;
629: chr->opaque = s;
630: chr->chr_write = fd_chr_write;
631: chr->chr_update_read_handler = fd_chr_update_read_handler;
632: chr->chr_close = fd_chr_close;
633:
1.1.1.5 root 634: qemu_chr_generic_open(chr);
1.1 root 635:
636: return chr;
637: }
638:
1.1.1.11 root 639: static int qemu_chr_open_file_out(QemuOpts *opts, CharDriverState **_chr)
1.1 root 640: {
641: int fd_out;
642:
1.1.1.5 root 643: TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
644: O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
1.1.1.11 root 645: if (fd_out < 0) {
646: return -errno;
647: }
648:
649: *_chr = qemu_chr_open_fd(-1, fd_out);
650: return 0;
1.1 root 651: }
652:
1.1.1.11 root 653: static int qemu_chr_open_pipe(QemuOpts *opts, CharDriverState **_chr)
1.1 root 654: {
655: int fd_in, fd_out;
656: char filename_in[256], filename_out[256];
1.1.1.5 root 657: const char *filename = qemu_opt_get(opts, "path");
658:
659: if (filename == NULL) {
660: fprintf(stderr, "chardev: pipe: no filename given\n");
1.1.1.11 root 661: return -EINVAL;
1.1.1.5 root 662: }
1.1 root 663:
664: snprintf(filename_in, 256, "%s.in", filename);
665: snprintf(filename_out, 256, "%s.out", filename);
1.1.1.5 root 666: TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
667: TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
1.1 root 668: if (fd_in < 0 || fd_out < 0) {
669: if (fd_in >= 0)
670: close(fd_in);
671: if (fd_out >= 0)
672: close(fd_out);
1.1.1.11 root 673: TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
674: if (fd_in < 0) {
675: return -errno;
676: }
1.1 root 677: }
1.1.1.11 root 678:
679: *_chr = qemu_chr_open_fd(fd_in, fd_out);
680: return 0;
1.1 root 681: }
682:
683:
684: /* for STDIO, we handle the case where several clients use it
685: (nographic mode) */
686:
687: #define TERM_FIFO_MAX_SIZE 1
688:
689: static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
690: static int term_fifo_size;
691:
692: static int stdio_read_poll(void *opaque)
693: {
694: CharDriverState *chr = opaque;
695:
696: /* try to flush the queue if needed */
1.1.1.12! root 697: if (term_fifo_size != 0 && qemu_chr_be_can_write(chr) > 0) {
! 698: qemu_chr_be_write(chr, term_fifo, 1);
1.1 root 699: term_fifo_size = 0;
700: }
701: /* see if we can absorb more chars */
702: if (term_fifo_size == 0)
703: return 1;
704: else
705: return 0;
706: }
707:
708: static void stdio_read(void *opaque)
709: {
710: int size;
711: uint8_t buf[1];
712: CharDriverState *chr = opaque;
713:
714: size = read(0, buf, 1);
715: if (size == 0) {
716: /* stdin has been closed. Remove it from the active list. */
717: qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
1.1.1.12! root 718: qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1.1 root 719: return;
720: }
721: if (size > 0) {
1.1.1.12! root 722: if (qemu_chr_be_can_write(chr) > 0) {
! 723: qemu_chr_be_write(chr, buf, 1);
1.1 root 724: } else if (term_fifo_size == 0) {
725: term_fifo[term_fifo_size++] = buf[0];
726: }
727: }
728: }
729:
730: /* init terminal so that we can grab keys */
731: static struct termios oldtty;
732: static int old_fd0_flags;
1.1.1.9 root 733: static bool stdio_allow_signal;
1.1 root 734:
735: static void term_exit(void)
736: {
737: tcsetattr (0, TCSANOW, &oldtty);
738: fcntl(0, F_SETFL, old_fd0_flags);
739: }
740:
1.1.1.9 root 741: static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
1.1 root 742: {
743: struct termios tty;
744:
1.1.1.9 root 745: tty = oldtty;
746: if (!echo) {
747: tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1.1 root 748: |INLCR|IGNCR|ICRNL|IXON);
1.1.1.9 root 749: tty.c_oflag |= OPOST;
750: tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
751: tty.c_cflag &= ~(CSIZE|PARENB);
752: tty.c_cflag |= CS8;
753: tty.c_cc[VMIN] = 1;
754: tty.c_cc[VTIME] = 0;
755: }
1.1 root 756: /* if graphical mode, we allow Ctrl-C handling */
1.1.1.9 root 757: if (!stdio_allow_signal)
1.1 root 758: tty.c_lflag &= ~ISIG;
759:
760: tcsetattr (0, TCSANOW, &tty);
761: }
762:
763: static void qemu_chr_close_stdio(struct CharDriverState *chr)
764: {
765: term_exit();
766: stdio_nb_clients--;
767: qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
768: fd_chr_close(chr);
769: }
770:
1.1.1.11 root 771: static int qemu_chr_open_stdio(QemuOpts *opts, CharDriverState **_chr)
1.1 root 772: {
773: CharDriverState *chr;
774:
1.1.1.11 root 775: if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
776: return -EBUSY;
777: }
778:
1.1.1.9 root 779: if (stdio_nb_clients == 0) {
780: old_fd0_flags = fcntl(0, F_GETFL);
781: tcgetattr (0, &oldtty);
782: fcntl(0, F_SETFL, O_NONBLOCK);
783: atexit(term_exit);
784: }
785:
1.1 root 786: chr = qemu_chr_open_fd(0, 1);
787: chr->chr_close = qemu_chr_close_stdio;
1.1.1.9 root 788: chr->chr_set_echo = qemu_chr_set_echo_stdio;
1.1 root 789: qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
790: stdio_nb_clients++;
1.1.1.9 root 791: stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
792: display_type != DT_NOGRAPHIC);
1.1.1.12! root 793: qemu_chr_fe_set_echo(chr, false);
1.1 root 794:
1.1.1.11 root 795: *_chr = chr;
796: return 0;
1.1 root 797: }
798:
799: #ifdef __sun__
800: /* Once Solaris has openpty(), this is going to be removed. */
1.1.1.4 root 801: static int openpty(int *amaster, int *aslave, char *name,
802: struct termios *termp, struct winsize *winp)
1.1 root 803: {
804: const char *slave;
805: int mfd = -1, sfd = -1;
806:
807: *amaster = *aslave = -1;
808:
809: mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
810: if (mfd < 0)
811: goto err;
812:
813: if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
814: goto err;
815:
816: if ((slave = ptsname(mfd)) == NULL)
817: goto err;
818:
819: if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
820: goto err;
821:
822: if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
823: (termp != NULL && tcgetattr(sfd, termp) < 0))
824: goto err;
825:
826: if (amaster)
827: *amaster = mfd;
828: if (aslave)
829: *aslave = sfd;
830: if (winp)
831: ioctl(sfd, TIOCSWINSZ, winp);
832:
833: return 0;
834:
835: err:
836: if (sfd != -1)
837: close(sfd);
838: close(mfd);
839: return -1;
840: }
841:
1.1.1.4 root 842: static void cfmakeraw (struct termios *termios_p)
1.1 root 843: {
844: termios_p->c_iflag &=
845: ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
846: termios_p->c_oflag &= ~OPOST;
847: termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
848: termios_p->c_cflag &= ~(CSIZE|PARENB);
849: termios_p->c_cflag |= CS8;
850:
851: termios_p->c_cc[VMIN] = 0;
852: termios_p->c_cc[VTIME] = 0;
853: }
854: #endif
855:
856: #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1.1.1.5 root 857: || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
858: || defined(__GLIBC__)
1.1 root 859:
860: typedef struct {
861: int fd;
862: int connected;
863: int polling;
864: int read_bytes;
865: QEMUTimer *timer;
866: } PtyCharDriver;
867:
868: static void pty_chr_update_read_handler(CharDriverState *chr);
869: static void pty_chr_state(CharDriverState *chr, int connected);
870:
871: static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
872: {
873: PtyCharDriver *s = chr->opaque;
874:
875: if (!s->connected) {
876: /* guest sends data, check for (re-)connect */
877: pty_chr_update_read_handler(chr);
878: return 0;
879: }
880: return send_all(s->fd, buf, len);
881: }
882:
883: static int pty_chr_read_poll(void *opaque)
884: {
885: CharDriverState *chr = opaque;
886: PtyCharDriver *s = chr->opaque;
887:
1.1.1.12! root 888: s->read_bytes = qemu_chr_be_can_write(chr);
1.1 root 889: return s->read_bytes;
890: }
891:
892: static void pty_chr_read(void *opaque)
893: {
894: CharDriverState *chr = opaque;
895: PtyCharDriver *s = chr->opaque;
896: int size, len;
1.1.1.5 root 897: uint8_t buf[READ_BUF_LEN];
1.1 root 898:
899: len = sizeof(buf);
900: if (len > s->read_bytes)
901: len = s->read_bytes;
902: if (len == 0)
903: return;
904: size = read(s->fd, buf, len);
905: if ((size == -1 && errno == EIO) ||
906: (size == 0)) {
907: pty_chr_state(chr, 0);
908: return;
909: }
910: if (size > 0) {
911: pty_chr_state(chr, 1);
1.1.1.12! root 912: qemu_chr_be_write(chr, buf, size);
1.1 root 913: }
914: }
915:
916: static void pty_chr_update_read_handler(CharDriverState *chr)
917: {
918: PtyCharDriver *s = chr->opaque;
919:
920: qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
921: pty_chr_read, NULL, chr);
922: s->polling = 1;
923: /*
924: * Short timeout here: just need wait long enougth that qemu makes
925: * it through the poll loop once. When reconnected we want a
926: * short timeout so we notice it almost instantly. Otherwise
927: * read() gives us -EIO instantly, making pty_chr_state() reset the
928: * timeout to the normal (much longer) poll interval before the
929: * timer triggers.
930: */
1.1.1.11 root 931: qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
1.1 root 932: }
933:
934: static void pty_chr_state(CharDriverState *chr, int connected)
935: {
936: PtyCharDriver *s = chr->opaque;
937:
938: if (!connected) {
939: qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
940: s->connected = 0;
941: s->polling = 0;
942: /* (re-)connect poll interval for idle guests: once per second.
943: * We check more frequently in case the guests sends data to
944: * the virtual device linked to our pty. */
1.1.1.11 root 945: qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
1.1 root 946: } else {
947: if (!s->connected)
1.1.1.5 root 948: qemu_chr_generic_open(chr);
1.1 root 949: s->connected = 1;
950: }
951: }
952:
953: static void pty_chr_timer(void *opaque)
954: {
955: struct CharDriverState *chr = opaque;
956: PtyCharDriver *s = chr->opaque;
957:
958: if (s->connected)
959: return;
960: if (s->polling) {
961: /* If we arrive here without polling being cleared due
962: * read returning -EIO, then we are (re-)connected */
963: pty_chr_state(chr, 1);
964: return;
965: }
966:
967: /* Next poll ... */
968: pty_chr_update_read_handler(chr);
969: }
970:
971: static void pty_chr_close(struct CharDriverState *chr)
972: {
973: PtyCharDriver *s = chr->opaque;
974:
975: qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
976: close(s->fd);
1.1.1.3 root 977: qemu_del_timer(s->timer);
978: qemu_free_timer(s->timer);
1.1.1.12! root 979: g_free(s);
! 980: qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1.1 root 981: }
982:
1.1.1.11 root 983: static int qemu_chr_open_pty(QemuOpts *opts, CharDriverState **_chr)
1.1 root 984: {
985: CharDriverState *chr;
986: PtyCharDriver *s;
987: struct termios tty;
1.1.1.12! root 988: int master_fd, slave_fd, len;
1.1.1.4 root 989: #if defined(__OpenBSD__) || defined(__DragonFly__)
1.1 root 990: char pty_name[PATH_MAX];
991: #define q_ptsname(x) pty_name
992: #else
993: char *pty_name = NULL;
994: #define q_ptsname(x) ptsname(x)
995: #endif
996:
1.1.1.12! root 997: if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1.1.1.11 root 998: return -errno;
1.1 root 999: }
1000:
1001: /* Set raw attributes on the pty. */
1002: tcgetattr(slave_fd, &tty);
1003: cfmakeraw(&tty);
1004: tcsetattr(slave_fd, TCSAFLUSH, &tty);
1005: close(slave_fd);
1006:
1.1.1.12! root 1007: chr = g_malloc0(sizeof(CharDriverState));
! 1008:
! 1009: len = strlen(q_ptsname(master_fd)) + 5;
! 1010: chr->filename = g_malloc(len);
! 1011: snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
! 1012: qemu_opt_set(opts, "path", q_ptsname(master_fd));
! 1013: fprintf(stderr, "char device redirected to %s\n", q_ptsname(master_fd));
1.1 root 1014:
1.1.1.12! root 1015: s = g_malloc0(sizeof(PtyCharDriver));
1.1 root 1016: chr->opaque = s;
1017: chr->chr_write = pty_chr_write;
1018: chr->chr_update_read_handler = pty_chr_update_read_handler;
1019: chr->chr_close = pty_chr_close;
1020:
1.1.1.12! root 1021: s->fd = master_fd;
1.1.1.11 root 1022: s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
1.1 root 1023:
1.1.1.11 root 1024: *_chr = chr;
1025: return 0;
1.1 root 1026: }
1027:
1028: static void tty_serial_init(int fd, int speed,
1029: int parity, int data_bits, int stop_bits)
1030: {
1031: struct termios tty;
1032: speed_t spd;
1033:
1034: #if 0
1035: printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1036: speed, parity, data_bits, stop_bits);
1037: #endif
1038: tcgetattr (fd, &tty);
1039:
1.1.1.5 root 1040: #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1041: speed = speed * 10 / 11;
1042: do {
1043: check_speed(50);
1044: check_speed(75);
1045: check_speed(110);
1046: check_speed(134);
1047: check_speed(150);
1048: check_speed(200);
1049: check_speed(300);
1050: check_speed(600);
1051: check_speed(1200);
1052: check_speed(1800);
1053: check_speed(2400);
1054: check_speed(4800);
1055: check_speed(9600);
1056: check_speed(19200);
1057: check_speed(38400);
1058: /* Non-Posix values follow. They may be unsupported on some systems. */
1059: check_speed(57600);
1060: check_speed(115200);
1061: #ifdef B230400
1062: check_speed(230400);
1063: #endif
1064: #ifdef B460800
1065: check_speed(460800);
1066: #endif
1067: #ifdef B500000
1068: check_speed(500000);
1069: #endif
1070: #ifdef B576000
1071: check_speed(576000);
1072: #endif
1073: #ifdef B921600
1074: check_speed(921600);
1075: #endif
1076: #ifdef B1000000
1077: check_speed(1000000);
1078: #endif
1079: #ifdef B1152000
1080: check_speed(1152000);
1081: #endif
1082: #ifdef B1500000
1083: check_speed(1500000);
1084: #endif
1085: #ifdef B2000000
1086: check_speed(2000000);
1087: #endif
1088: #ifdef B2500000
1089: check_speed(2500000);
1090: #endif
1091: #ifdef B3000000
1092: check_speed(3000000);
1093: #endif
1094: #ifdef B3500000
1095: check_speed(3500000);
1096: #endif
1097: #ifdef B4000000
1098: check_speed(4000000);
1099: #endif
1.1 root 1100: spd = B115200;
1.1.1.5 root 1101: } while (0);
1.1 root 1102:
1103: cfsetispeed(&tty, spd);
1104: cfsetospeed(&tty, spd);
1105:
1106: tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1107: |INLCR|IGNCR|ICRNL|IXON);
1108: tty.c_oflag |= OPOST;
1109: tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1110: tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1111: switch(data_bits) {
1112: default:
1113: case 8:
1114: tty.c_cflag |= CS8;
1115: break;
1116: case 7:
1117: tty.c_cflag |= CS7;
1118: break;
1119: case 6:
1120: tty.c_cflag |= CS6;
1121: break;
1122: case 5:
1123: tty.c_cflag |= CS5;
1124: break;
1125: }
1126: switch(parity) {
1127: default:
1128: case 'N':
1129: break;
1130: case 'E':
1131: tty.c_cflag |= PARENB;
1132: break;
1133: case 'O':
1134: tty.c_cflag |= PARENB | PARODD;
1135: break;
1136: }
1137: if (stop_bits == 2)
1138: tty.c_cflag |= CSTOPB;
1139:
1140: tcsetattr (fd, TCSANOW, &tty);
1141: }
1142:
1143: static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1144: {
1145: FDCharDriver *s = chr->opaque;
1146:
1147: switch(cmd) {
1148: case CHR_IOCTL_SERIAL_SET_PARAMS:
1149: {
1150: QEMUSerialSetParams *ssp = arg;
1151: tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1152: ssp->data_bits, ssp->stop_bits);
1153: }
1154: break;
1155: case CHR_IOCTL_SERIAL_SET_BREAK:
1156: {
1157: int enable = *(int *)arg;
1158: if (enable)
1159: tcsendbreak(s->fd_in, 1);
1160: }
1161: break;
1162: case CHR_IOCTL_SERIAL_GET_TIOCM:
1163: {
1164: int sarg = 0;
1165: int *targ = (int *)arg;
1166: ioctl(s->fd_in, TIOCMGET, &sarg);
1167: *targ = 0;
1168: if (sarg & TIOCM_CTS)
1169: *targ |= CHR_TIOCM_CTS;
1170: if (sarg & TIOCM_CAR)
1171: *targ |= CHR_TIOCM_CAR;
1172: if (sarg & TIOCM_DSR)
1173: *targ |= CHR_TIOCM_DSR;
1174: if (sarg & TIOCM_RI)
1175: *targ |= CHR_TIOCM_RI;
1176: if (sarg & TIOCM_DTR)
1177: *targ |= CHR_TIOCM_DTR;
1178: if (sarg & TIOCM_RTS)
1179: *targ |= CHR_TIOCM_RTS;
1180: }
1181: break;
1182: case CHR_IOCTL_SERIAL_SET_TIOCM:
1183: {
1184: int sarg = *(int *)arg;
1185: int targ = 0;
1186: ioctl(s->fd_in, TIOCMGET, &targ);
1187: targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1188: | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1189: if (sarg & CHR_TIOCM_CTS)
1190: targ |= TIOCM_CTS;
1191: if (sarg & CHR_TIOCM_CAR)
1192: targ |= TIOCM_CAR;
1193: if (sarg & CHR_TIOCM_DSR)
1194: targ |= TIOCM_DSR;
1195: if (sarg & CHR_TIOCM_RI)
1196: targ |= TIOCM_RI;
1197: if (sarg & CHR_TIOCM_DTR)
1198: targ |= TIOCM_DTR;
1199: if (sarg & CHR_TIOCM_RTS)
1200: targ |= TIOCM_RTS;
1201: ioctl(s->fd_in, TIOCMSET, &targ);
1202: }
1203: break;
1204: default:
1205: return -ENOTSUP;
1206: }
1207: return 0;
1208: }
1209:
1.1.1.8 root 1210: static void qemu_chr_close_tty(CharDriverState *chr)
1211: {
1212: FDCharDriver *s = chr->opaque;
1213: int fd = -1;
1214:
1215: if (s) {
1216: fd = s->fd_in;
1217: }
1218:
1219: fd_chr_close(chr);
1220:
1221: if (fd >= 0) {
1222: close(fd);
1223: }
1224: }
1225:
1.1.1.11 root 1226: static int qemu_chr_open_tty(QemuOpts *opts, CharDriverState **_chr)
1.1 root 1227: {
1.1.1.5 root 1228: const char *filename = qemu_opt_get(opts, "path");
1.1 root 1229: CharDriverState *chr;
1230: int fd;
1231:
1.1.1.11 root 1232: TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
1.1.1.6 root 1233: if (fd < 0) {
1.1.1.11 root 1234: return -errno;
1.1.1.6 root 1235: }
1.1 root 1236: tty_serial_init(fd, 115200, 'N', 8, 1);
1237: chr = qemu_chr_open_fd(fd, fd);
1238: chr->chr_ioctl = tty_serial_ioctl;
1.1.1.8 root 1239: chr->chr_close = qemu_chr_close_tty;
1.1.1.11 root 1240:
1241: *_chr = chr;
1242: return 0;
1.1 root 1243: }
1244: #else /* ! __linux__ && ! __sun__ */
1.1.1.11 root 1245: static int qemu_chr_open_pty(QemuOpts *opts, CharDriverState **_chr)
1.1 root 1246: {
1.1.1.11 root 1247: return -ENOTSUP;
1.1 root 1248: }
1249: #endif /* __linux__ || __sun__ */
1250:
1251: #if defined(__linux__)
1252: typedef struct {
1253: int fd;
1254: int mode;
1255: } ParallelCharDriver;
1256:
1257: static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1258: {
1259: if (s->mode != mode) {
1260: int m = mode;
1261: if (ioctl(s->fd, PPSETMODE, &m) < 0)
1262: return 0;
1263: s->mode = mode;
1264: }
1265: return 1;
1266: }
1267:
1268: static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1269: {
1270: ParallelCharDriver *drv = chr->opaque;
1271: int fd = drv->fd;
1272: uint8_t b;
1273:
1274: switch(cmd) {
1275: case CHR_IOCTL_PP_READ_DATA:
1276: if (ioctl(fd, PPRDATA, &b) < 0)
1277: return -ENOTSUP;
1278: *(uint8_t *)arg = b;
1279: break;
1280: case CHR_IOCTL_PP_WRITE_DATA:
1281: b = *(uint8_t *)arg;
1282: if (ioctl(fd, PPWDATA, &b) < 0)
1283: return -ENOTSUP;
1284: break;
1285: case CHR_IOCTL_PP_READ_CONTROL:
1286: if (ioctl(fd, PPRCONTROL, &b) < 0)
1287: return -ENOTSUP;
1288: /* Linux gives only the lowest bits, and no way to know data
1289: direction! For better compatibility set the fixed upper
1290: bits. */
1291: *(uint8_t *)arg = b | 0xc0;
1292: break;
1293: case CHR_IOCTL_PP_WRITE_CONTROL:
1294: b = *(uint8_t *)arg;
1295: if (ioctl(fd, PPWCONTROL, &b) < 0)
1296: return -ENOTSUP;
1297: break;
1298: case CHR_IOCTL_PP_READ_STATUS:
1299: if (ioctl(fd, PPRSTATUS, &b) < 0)
1300: return -ENOTSUP;
1301: *(uint8_t *)arg = b;
1302: break;
1303: case CHR_IOCTL_PP_DATA_DIR:
1304: if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1305: return -ENOTSUP;
1306: break;
1307: case CHR_IOCTL_PP_EPP_READ_ADDR:
1308: if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1309: struct ParallelIOArg *parg = arg;
1310: int n = read(fd, parg->buffer, parg->count);
1311: if (n != parg->count) {
1312: return -EIO;
1313: }
1314: }
1315: break;
1316: case CHR_IOCTL_PP_EPP_READ:
1317: if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1318: struct ParallelIOArg *parg = arg;
1319: int n = read(fd, parg->buffer, parg->count);
1320: if (n != parg->count) {
1321: return -EIO;
1322: }
1323: }
1324: break;
1325: case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1326: if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1327: struct ParallelIOArg *parg = arg;
1328: int n = write(fd, parg->buffer, parg->count);
1329: if (n != parg->count) {
1330: return -EIO;
1331: }
1332: }
1333: break;
1334: case CHR_IOCTL_PP_EPP_WRITE:
1335: if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1336: struct ParallelIOArg *parg = arg;
1337: int n = write(fd, parg->buffer, parg->count);
1338: if (n != parg->count) {
1339: return -EIO;
1340: }
1341: }
1342: break;
1343: default:
1344: return -ENOTSUP;
1345: }
1346: return 0;
1347: }
1348:
1349: static void pp_close(CharDriverState *chr)
1350: {
1351: ParallelCharDriver *drv = chr->opaque;
1352: int fd = drv->fd;
1353:
1354: pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1355: ioctl(fd, PPRELEASE);
1356: close(fd);
1.1.1.12! root 1357: g_free(drv);
! 1358: qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1.1 root 1359: }
1360:
1.1.1.11 root 1361: static int qemu_chr_open_pp(QemuOpts *opts, CharDriverState **_chr)
1.1 root 1362: {
1.1.1.5 root 1363: const char *filename = qemu_opt_get(opts, "path");
1.1 root 1364: CharDriverState *chr;
1365: ParallelCharDriver *drv;
1366: int fd;
1367:
1368: TFR(fd = open(filename, O_RDWR));
1.1.1.11 root 1369: if (fd < 0) {
1370: return -errno;
1371: }
1.1 root 1372:
1373: if (ioctl(fd, PPCLAIM) < 0) {
1374: close(fd);
1.1.1.11 root 1375: return -errno;
1.1 root 1376: }
1377:
1.1.1.12! root 1378: drv = g_malloc0(sizeof(ParallelCharDriver));
1.1 root 1379: drv->fd = fd;
1380: drv->mode = IEEE1284_MODE_COMPAT;
1381:
1.1.1.12! root 1382: chr = g_malloc0(sizeof(CharDriverState));
1.1 root 1383: chr->chr_write = null_chr_write;
1384: chr->chr_ioctl = pp_ioctl;
1385: chr->chr_close = pp_close;
1386: chr->opaque = drv;
1387:
1.1.1.5 root 1388: qemu_chr_generic_open(chr);
1.1 root 1389:
1.1.1.11 root 1390: *_chr = chr;
1391: return 0;
1.1 root 1392: }
1393: #endif /* __linux__ */
1394:
1.1.1.5 root 1395: #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1.1 root 1396: static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1397: {
1.1.1.11 root 1398: int fd = (int)(intptr_t)chr->opaque;
1.1 root 1399: uint8_t b;
1400:
1401: switch(cmd) {
1402: case CHR_IOCTL_PP_READ_DATA:
1403: if (ioctl(fd, PPIGDATA, &b) < 0)
1404: return -ENOTSUP;
1405: *(uint8_t *)arg = b;
1406: break;
1407: case CHR_IOCTL_PP_WRITE_DATA:
1408: b = *(uint8_t *)arg;
1409: if (ioctl(fd, PPISDATA, &b) < 0)
1410: return -ENOTSUP;
1411: break;
1412: case CHR_IOCTL_PP_READ_CONTROL:
1413: if (ioctl(fd, PPIGCTRL, &b) < 0)
1414: return -ENOTSUP;
1415: *(uint8_t *)arg = b;
1416: break;
1417: case CHR_IOCTL_PP_WRITE_CONTROL:
1418: b = *(uint8_t *)arg;
1419: if (ioctl(fd, PPISCTRL, &b) < 0)
1420: return -ENOTSUP;
1421: break;
1422: case CHR_IOCTL_PP_READ_STATUS:
1423: if (ioctl(fd, PPIGSTATUS, &b) < 0)
1424: return -ENOTSUP;
1425: *(uint8_t *)arg = b;
1426: break;
1427: default:
1428: return -ENOTSUP;
1429: }
1430: return 0;
1431: }
1432:
1.1.1.11 root 1433: static int qemu_chr_open_pp(QemuOpts *opts, CharDriverState **_chr)
1.1 root 1434: {
1.1.1.5 root 1435: const char *filename = qemu_opt_get(opts, "path");
1.1 root 1436: CharDriverState *chr;
1437: int fd;
1438:
1.1.1.11 root 1439: fd = qemu_open(filename, O_RDWR);
1440: if (fd < 0) {
1441: return -errno;
1442: }
1.1 root 1443:
1.1.1.12! root 1444: chr = g_malloc0(sizeof(CharDriverState));
1.1.1.11 root 1445: chr->opaque = (void *)(intptr_t)fd;
1.1 root 1446: chr->chr_write = null_chr_write;
1447: chr->chr_ioctl = pp_ioctl;
1.1.1.11 root 1448:
1449: *_chr = chr;
1450: return 0;
1.1 root 1451: }
1452: #endif
1453:
1454: #else /* _WIN32 */
1455:
1.1.1.12! root 1456: static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];
! 1457:
1.1 root 1458: typedef struct {
1459: int max_size;
1460: HANDLE hcom, hrecv, hsend;
1461: OVERLAPPED orecv, osend;
1462: BOOL fpipe;
1463: DWORD len;
1464: } WinCharState;
1465:
1.1.1.12! root 1466: typedef struct {
! 1467: HANDLE hStdIn;
! 1468: HANDLE hInputReadyEvent;
! 1469: HANDLE hInputDoneEvent;
! 1470: HANDLE hInputThread;
! 1471: uint8_t win_stdio_buf;
! 1472: } WinStdioCharState;
! 1473:
1.1 root 1474: #define NSENDBUF 2048
1475: #define NRECVBUF 2048
1476: #define MAXCONNECT 1
1477: #define NTIMEOUT 5000
1478:
1479: static int win_chr_poll(void *opaque);
1480: static int win_chr_pipe_poll(void *opaque);
1481:
1482: static void win_chr_close(CharDriverState *chr)
1483: {
1484: WinCharState *s = chr->opaque;
1485:
1486: if (s->hsend) {
1487: CloseHandle(s->hsend);
1488: s->hsend = NULL;
1489: }
1490: if (s->hrecv) {
1491: CloseHandle(s->hrecv);
1492: s->hrecv = NULL;
1493: }
1494: if (s->hcom) {
1495: CloseHandle(s->hcom);
1496: s->hcom = NULL;
1497: }
1498: if (s->fpipe)
1499: qemu_del_polling_cb(win_chr_pipe_poll, chr);
1500: else
1501: qemu_del_polling_cb(win_chr_poll, chr);
1.1.1.5 root 1502:
1.1.1.12! root 1503: qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1.1 root 1504: }
1505:
1506: static int win_chr_init(CharDriverState *chr, const char *filename)
1507: {
1508: WinCharState *s = chr->opaque;
1509: COMMCONFIG comcfg;
1510: COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1511: COMSTAT comstat;
1512: DWORD size;
1513: DWORD err;
1514:
1515: s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1516: if (!s->hsend) {
1517: fprintf(stderr, "Failed CreateEvent\n");
1518: goto fail;
1519: }
1520: s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1521: if (!s->hrecv) {
1522: fprintf(stderr, "Failed CreateEvent\n");
1523: goto fail;
1524: }
1525:
1526: s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1527: OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1528: if (s->hcom == INVALID_HANDLE_VALUE) {
1529: fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1530: s->hcom = NULL;
1531: goto fail;
1532: }
1533:
1534: if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1535: fprintf(stderr, "Failed SetupComm\n");
1536: goto fail;
1537: }
1538:
1539: ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1540: size = sizeof(COMMCONFIG);
1541: GetDefaultCommConfig(filename, &comcfg, &size);
1542: comcfg.dcb.DCBlength = sizeof(DCB);
1543: CommConfigDialog(filename, NULL, &comcfg);
1544:
1545: if (!SetCommState(s->hcom, &comcfg.dcb)) {
1546: fprintf(stderr, "Failed SetCommState\n");
1547: goto fail;
1548: }
1549:
1550: if (!SetCommMask(s->hcom, EV_ERR)) {
1551: fprintf(stderr, "Failed SetCommMask\n");
1552: goto fail;
1553: }
1554:
1555: cto.ReadIntervalTimeout = MAXDWORD;
1556: if (!SetCommTimeouts(s->hcom, &cto)) {
1557: fprintf(stderr, "Failed SetCommTimeouts\n");
1558: goto fail;
1559: }
1560:
1561: if (!ClearCommError(s->hcom, &err, &comstat)) {
1562: fprintf(stderr, "Failed ClearCommError\n");
1563: goto fail;
1564: }
1565: qemu_add_polling_cb(win_chr_poll, chr);
1566: return 0;
1567:
1568: fail:
1569: win_chr_close(chr);
1570: return -1;
1571: }
1572:
1573: static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1574: {
1575: WinCharState *s = chr->opaque;
1576: DWORD len, ret, size, err;
1577:
1578: len = len1;
1579: ZeroMemory(&s->osend, sizeof(s->osend));
1580: s->osend.hEvent = s->hsend;
1581: while (len > 0) {
1582: if (s->hsend)
1583: ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1584: else
1585: ret = WriteFile(s->hcom, buf, len, &size, NULL);
1586: if (!ret) {
1587: err = GetLastError();
1588: if (err == ERROR_IO_PENDING) {
1589: ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1590: if (ret) {
1591: buf += size;
1592: len -= size;
1593: } else {
1594: break;
1595: }
1596: } else {
1597: break;
1598: }
1599: } else {
1600: buf += size;
1601: len -= size;
1602: }
1603: }
1604: return len1 - len;
1605: }
1606:
1607: static int win_chr_read_poll(CharDriverState *chr)
1608: {
1609: WinCharState *s = chr->opaque;
1610:
1.1.1.12! root 1611: s->max_size = qemu_chr_be_can_write(chr);
1.1 root 1612: return s->max_size;
1613: }
1614:
1615: static void win_chr_readfile(CharDriverState *chr)
1616: {
1617: WinCharState *s = chr->opaque;
1618: int ret, err;
1.1.1.5 root 1619: uint8_t buf[READ_BUF_LEN];
1.1 root 1620: DWORD size;
1621:
1622: ZeroMemory(&s->orecv, sizeof(s->orecv));
1623: s->orecv.hEvent = s->hrecv;
1624: ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1625: if (!ret) {
1626: err = GetLastError();
1627: if (err == ERROR_IO_PENDING) {
1628: ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1629: }
1630: }
1631:
1632: if (size > 0) {
1.1.1.12! root 1633: qemu_chr_be_write(chr, buf, size);
1.1 root 1634: }
1635: }
1636:
1637: static void win_chr_read(CharDriverState *chr)
1638: {
1639: WinCharState *s = chr->opaque;
1640:
1641: if (s->len > s->max_size)
1642: s->len = s->max_size;
1643: if (s->len == 0)
1644: return;
1645:
1646: win_chr_readfile(chr);
1647: }
1648:
1649: static int win_chr_poll(void *opaque)
1650: {
1651: CharDriverState *chr = opaque;
1652: WinCharState *s = chr->opaque;
1653: COMSTAT status;
1654: DWORD comerr;
1655:
1656: ClearCommError(s->hcom, &comerr, &status);
1657: if (status.cbInQue > 0) {
1658: s->len = status.cbInQue;
1659: win_chr_read_poll(chr);
1660: win_chr_read(chr);
1661: return 1;
1662: }
1663: return 0;
1664: }
1665:
1.1.1.11 root 1666: static int qemu_chr_open_win(QemuOpts *opts, CharDriverState **_chr)
1.1 root 1667: {
1.1.1.5 root 1668: const char *filename = qemu_opt_get(opts, "path");
1.1 root 1669: CharDriverState *chr;
1670: WinCharState *s;
1671:
1.1.1.12! root 1672: chr = g_malloc0(sizeof(CharDriverState));
! 1673: s = g_malloc0(sizeof(WinCharState));
1.1 root 1674: chr->opaque = s;
1675: chr->chr_write = win_chr_write;
1676: chr->chr_close = win_chr_close;
1677:
1678: if (win_chr_init(chr, filename) < 0) {
1.1.1.12! root 1679: g_free(s);
! 1680: g_free(chr);
1.1.1.11 root 1681: return -EIO;
1.1 root 1682: }
1.1.1.5 root 1683: qemu_chr_generic_open(chr);
1.1.1.11 root 1684:
1685: *_chr = chr;
1686: return 0;
1.1 root 1687: }
1688:
1689: static int win_chr_pipe_poll(void *opaque)
1690: {
1691: CharDriverState *chr = opaque;
1692: WinCharState *s = chr->opaque;
1693: DWORD size;
1694:
1695: PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1696: if (size > 0) {
1697: s->len = size;
1698: win_chr_read_poll(chr);
1699: win_chr_read(chr);
1700: return 1;
1701: }
1702: return 0;
1703: }
1704:
1705: static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1706: {
1707: WinCharState *s = chr->opaque;
1708: OVERLAPPED ov;
1709: int ret;
1710: DWORD size;
1711: char openname[256];
1712:
1713: s->fpipe = TRUE;
1714:
1715: s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1716: if (!s->hsend) {
1717: fprintf(stderr, "Failed CreateEvent\n");
1718: goto fail;
1719: }
1720: s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1721: if (!s->hrecv) {
1722: fprintf(stderr, "Failed CreateEvent\n");
1723: goto fail;
1724: }
1725:
1726: snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1727: s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1728: PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1729: PIPE_WAIT,
1730: MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1731: if (s->hcom == INVALID_HANDLE_VALUE) {
1732: fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1733: s->hcom = NULL;
1734: goto fail;
1735: }
1736:
1737: ZeroMemory(&ov, sizeof(ov));
1738: ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1739: ret = ConnectNamedPipe(s->hcom, &ov);
1740: if (ret) {
1741: fprintf(stderr, "Failed ConnectNamedPipe\n");
1742: goto fail;
1743: }
1744:
1745: ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1746: if (!ret) {
1747: fprintf(stderr, "Failed GetOverlappedResult\n");
1748: if (ov.hEvent) {
1749: CloseHandle(ov.hEvent);
1750: ov.hEvent = NULL;
1751: }
1752: goto fail;
1753: }
1754:
1755: if (ov.hEvent) {
1756: CloseHandle(ov.hEvent);
1757: ov.hEvent = NULL;
1758: }
1759: qemu_add_polling_cb(win_chr_pipe_poll, chr);
1760: return 0;
1761:
1762: fail:
1763: win_chr_close(chr);
1764: return -1;
1765: }
1766:
1767:
1.1.1.11 root 1768: static int qemu_chr_open_win_pipe(QemuOpts *opts, CharDriverState **_chr)
1.1 root 1769: {
1.1.1.5 root 1770: const char *filename = qemu_opt_get(opts, "path");
1.1 root 1771: CharDriverState *chr;
1772: WinCharState *s;
1773:
1.1.1.12! root 1774: chr = g_malloc0(sizeof(CharDriverState));
! 1775: s = g_malloc0(sizeof(WinCharState));
1.1 root 1776: chr->opaque = s;
1777: chr->chr_write = win_chr_write;
1778: chr->chr_close = win_chr_close;
1779:
1780: if (win_chr_pipe_init(chr, filename) < 0) {
1.1.1.12! root 1781: g_free(s);
! 1782: g_free(chr);
1.1.1.11 root 1783: return -EIO;
1.1 root 1784: }
1.1.1.5 root 1785: qemu_chr_generic_open(chr);
1.1.1.11 root 1786:
1787: *_chr = chr;
1788: return 0;
1.1 root 1789: }
1790:
1.1.1.11 root 1791: static int qemu_chr_open_win_file(HANDLE fd_out, CharDriverState **pchr)
1.1 root 1792: {
1793: CharDriverState *chr;
1794: WinCharState *s;
1795:
1.1.1.12! root 1796: chr = g_malloc0(sizeof(CharDriverState));
! 1797: s = g_malloc0(sizeof(WinCharState));
1.1 root 1798: s->hcom = fd_out;
1799: chr->opaque = s;
1800: chr->chr_write = win_chr_write;
1.1.1.5 root 1801: qemu_chr_generic_open(chr);
1.1.1.11 root 1802: *pchr = chr;
1803: return 0;
1.1 root 1804: }
1805:
1.1.1.11 root 1806: static int qemu_chr_open_win_con(QemuOpts *opts, CharDriverState **chr)
1.1 root 1807: {
1.1.1.11 root 1808: return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE), chr);
1.1 root 1809: }
1810:
1.1.1.11 root 1811: static int qemu_chr_open_win_file_out(QemuOpts *opts, CharDriverState **_chr)
1.1 root 1812: {
1.1.1.5 root 1813: const char *file_out = qemu_opt_get(opts, "path");
1.1 root 1814: HANDLE fd_out;
1815:
1816: fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1817: OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1.1.1.11 root 1818: if (fd_out == INVALID_HANDLE_VALUE) {
1819: return -EIO;
1820: }
1.1 root 1821:
1.1.1.11 root 1822: return qemu_chr_open_win_file(fd_out, _chr);
1.1 root 1823: }
1.1.1.12! root 1824:
! 1825: static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
! 1826: {
! 1827: HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
! 1828: DWORD dwSize;
! 1829: int len1;
! 1830:
! 1831: len1 = len;
! 1832:
! 1833: while (len1 > 0) {
! 1834: if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
! 1835: break;
! 1836: }
! 1837: buf += dwSize;
! 1838: len1 -= dwSize;
! 1839: }
! 1840:
! 1841: return len - len1;
! 1842: }
! 1843:
! 1844: static void win_stdio_wait_func(void *opaque)
! 1845: {
! 1846: CharDriverState *chr = opaque;
! 1847: WinStdioCharState *stdio = chr->opaque;
! 1848: INPUT_RECORD buf[4];
! 1849: int ret;
! 1850: DWORD dwSize;
! 1851: int i;
! 1852:
! 1853: ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
! 1854: &dwSize);
! 1855:
! 1856: if (!ret) {
! 1857: /* Avoid error storm */
! 1858: qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
! 1859: return;
! 1860: }
! 1861:
! 1862: for (i = 0; i < dwSize; i++) {
! 1863: KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
! 1864:
! 1865: if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
! 1866: int j;
! 1867: if (kev->uChar.AsciiChar != 0) {
! 1868: for (j = 0; j < kev->wRepeatCount; j++) {
! 1869: if (qemu_chr_be_can_write(chr)) {
! 1870: uint8_t c = kev->uChar.AsciiChar;
! 1871: qemu_chr_be_write(chr, &c, 1);
! 1872: }
! 1873: }
! 1874: }
! 1875: }
! 1876: }
! 1877: }
! 1878:
! 1879: static DWORD WINAPI win_stdio_thread(LPVOID param)
! 1880: {
! 1881: CharDriverState *chr = param;
! 1882: WinStdioCharState *stdio = chr->opaque;
! 1883: int ret;
! 1884: DWORD dwSize;
! 1885:
! 1886: while (1) {
! 1887:
! 1888: /* Wait for one byte */
! 1889: ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
! 1890:
! 1891: /* Exit in case of error, continue if nothing read */
! 1892: if (!ret) {
! 1893: break;
! 1894: }
! 1895: if (!dwSize) {
! 1896: continue;
! 1897: }
! 1898:
! 1899: /* Some terminal emulator returns \r\n for Enter, just pass \n */
! 1900: if (stdio->win_stdio_buf == '\r') {
! 1901: continue;
! 1902: }
! 1903:
! 1904: /* Signal the main thread and wait until the byte was eaten */
! 1905: if (!SetEvent(stdio->hInputReadyEvent)) {
! 1906: break;
! 1907: }
! 1908: if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
! 1909: != WAIT_OBJECT_0) {
! 1910: break;
! 1911: }
! 1912: }
! 1913:
! 1914: qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
! 1915: return 0;
! 1916: }
! 1917:
! 1918: static void win_stdio_thread_wait_func(void *opaque)
! 1919: {
! 1920: CharDriverState *chr = opaque;
! 1921: WinStdioCharState *stdio = chr->opaque;
! 1922:
! 1923: if (qemu_chr_be_can_write(chr)) {
! 1924: qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
! 1925: }
! 1926:
! 1927: SetEvent(stdio->hInputDoneEvent);
! 1928: }
! 1929:
! 1930: static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
! 1931: {
! 1932: WinStdioCharState *stdio = chr->opaque;
! 1933: DWORD dwMode = 0;
! 1934:
! 1935: GetConsoleMode(stdio->hStdIn, &dwMode);
! 1936:
! 1937: if (echo) {
! 1938: SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
! 1939: } else {
! 1940: SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
! 1941: }
! 1942: }
! 1943:
! 1944: static void win_stdio_close(CharDriverState *chr)
! 1945: {
! 1946: WinStdioCharState *stdio = chr->opaque;
! 1947:
! 1948: if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
! 1949: CloseHandle(stdio->hInputReadyEvent);
! 1950: }
! 1951: if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
! 1952: CloseHandle(stdio->hInputDoneEvent);
! 1953: }
! 1954: if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
! 1955: TerminateThread(stdio->hInputThread, 0);
! 1956: }
! 1957:
! 1958: g_free(chr->opaque);
! 1959: g_free(chr);
! 1960: stdio_nb_clients--;
! 1961: }
! 1962:
! 1963: static int qemu_chr_open_win_stdio(QemuOpts *opts, CharDriverState **_chr)
! 1964: {
! 1965: CharDriverState *chr;
! 1966: WinStdioCharState *stdio;
! 1967: DWORD dwMode;
! 1968: int is_console = 0;
! 1969:
! 1970: if (stdio_nb_clients >= STDIO_MAX_CLIENTS
! 1971: || ((display_type != DT_NOGRAPHIC) && (stdio_nb_clients != 0))) {
! 1972: return -EIO;
! 1973: }
! 1974:
! 1975: chr = g_malloc0(sizeof(CharDriverState));
! 1976: stdio = g_malloc0(sizeof(WinStdioCharState));
! 1977:
! 1978: stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
! 1979: if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
! 1980: fprintf(stderr, "cannot open stdio: invalid handle\n");
! 1981: exit(1);
! 1982: }
! 1983:
! 1984: is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
! 1985:
! 1986: chr->opaque = stdio;
! 1987: chr->chr_write = win_stdio_write;
! 1988: chr->chr_close = win_stdio_close;
! 1989:
! 1990: if (stdio_nb_clients == 0) {
! 1991: if (is_console) {
! 1992: if (qemu_add_wait_object(stdio->hStdIn,
! 1993: win_stdio_wait_func, chr)) {
! 1994: fprintf(stderr, "qemu_add_wait_object: failed\n");
! 1995: }
! 1996: } else {
! 1997: DWORD dwId;
! 1998:
! 1999: stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
! 2000: stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
! 2001: stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
! 2002: chr, 0, &dwId);
! 2003:
! 2004: if (stdio->hInputThread == INVALID_HANDLE_VALUE
! 2005: || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
! 2006: || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
! 2007: fprintf(stderr, "cannot create stdio thread or event\n");
! 2008: exit(1);
! 2009: }
! 2010: if (qemu_add_wait_object(stdio->hInputReadyEvent,
! 2011: win_stdio_thread_wait_func, chr)) {
! 2012: fprintf(stderr, "qemu_add_wait_object: failed\n");
! 2013: }
! 2014: }
! 2015: }
! 2016:
! 2017: dwMode |= ENABLE_LINE_INPUT;
! 2018:
! 2019: stdio_clients[stdio_nb_clients++] = chr;
! 2020: if (stdio_nb_clients == 1 && is_console) {
! 2021: /* set the terminal in raw mode */
! 2022: /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
! 2023: dwMode |= ENABLE_PROCESSED_INPUT;
! 2024: }
! 2025:
! 2026: SetConsoleMode(stdio->hStdIn, dwMode);
! 2027:
! 2028: chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
! 2029: qemu_chr_fe_set_echo(chr, false);
! 2030:
! 2031: *_chr = chr;
! 2032:
! 2033: return 0;
! 2034: }
1.1 root 2035: #endif /* !_WIN32 */
2036:
2037: /***********************************************************/
2038: /* UDP Net console */
2039:
2040: typedef struct {
2041: int fd;
1.1.1.5 root 2042: uint8_t buf[READ_BUF_LEN];
1.1 root 2043: int bufcnt;
2044: int bufptr;
2045: int max_size;
2046: } NetCharDriver;
2047:
2048: static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2049: {
2050: NetCharDriver *s = chr->opaque;
2051:
1.1.1.5 root 2052: return send(s->fd, (const void *)buf, len, 0);
1.1 root 2053: }
2054:
2055: static int udp_chr_read_poll(void *opaque)
2056: {
2057: CharDriverState *chr = opaque;
2058: NetCharDriver *s = chr->opaque;
2059:
1.1.1.12! root 2060: s->max_size = qemu_chr_be_can_write(chr);
1.1 root 2061:
2062: /* If there were any stray characters in the queue process them
2063: * first
2064: */
2065: while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1.1.1.12! root 2066: qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
1.1 root 2067: s->bufptr++;
1.1.1.12! root 2068: s->max_size = qemu_chr_be_can_write(chr);
1.1 root 2069: }
2070: return s->max_size;
2071: }
2072:
2073: static void udp_chr_read(void *opaque)
2074: {
2075: CharDriverState *chr = opaque;
2076: NetCharDriver *s = chr->opaque;
2077:
2078: if (s->max_size == 0)
2079: return;
1.1.1.11 root 2080: s->bufcnt = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0);
1.1 root 2081: s->bufptr = s->bufcnt;
2082: if (s->bufcnt <= 0)
2083: return;
2084:
2085: s->bufptr = 0;
2086: while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1.1.1.12! root 2087: qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
1.1 root 2088: s->bufptr++;
1.1.1.12! root 2089: s->max_size = qemu_chr_be_can_write(chr);
1.1 root 2090: }
2091: }
2092:
2093: static void udp_chr_update_read_handler(CharDriverState *chr)
2094: {
2095: NetCharDriver *s = chr->opaque;
2096:
2097: if (s->fd >= 0) {
2098: qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
2099: udp_chr_read, NULL, chr);
2100: }
2101: }
2102:
1.1.1.3 root 2103: static void udp_chr_close(CharDriverState *chr)
2104: {
2105: NetCharDriver *s = chr->opaque;
2106: if (s->fd >= 0) {
1.1.1.12! root 2107: qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
1.1.1.3 root 2108: closesocket(s->fd);
2109: }
1.1.1.12! root 2110: g_free(s);
! 2111: qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1.1.1.3 root 2112: }
2113:
1.1.1.11 root 2114: static int qemu_chr_open_udp(QemuOpts *opts, CharDriverState **_chr)
1.1 root 2115: {
2116: CharDriverState *chr = NULL;
2117: NetCharDriver *s = NULL;
2118: int fd = -1;
1.1.1.11 root 2119: int ret;
1.1 root 2120:
1.1.1.12! root 2121: chr = g_malloc0(sizeof(CharDriverState));
! 2122: s = g_malloc0(sizeof(NetCharDriver));
1.1 root 2123:
1.1.1.5 root 2124: fd = inet_dgram_opts(opts);
1.1 root 2125: if (fd < 0) {
1.1.1.5 root 2126: fprintf(stderr, "inet_dgram_opts failed\n");
1.1.1.11 root 2127: ret = -errno;
1.1 root 2128: goto return_err;
2129: }
2130:
2131: s->fd = fd;
2132: s->bufcnt = 0;
2133: s->bufptr = 0;
2134: chr->opaque = s;
2135: chr->chr_write = udp_chr_write;
2136: chr->chr_update_read_handler = udp_chr_update_read_handler;
1.1.1.3 root 2137: chr->chr_close = udp_chr_close;
1.1.1.11 root 2138:
2139: *_chr = chr;
2140: return 0;
1.1 root 2141:
2142: return_err:
1.1.1.12! root 2143: g_free(chr);
! 2144: g_free(s);
1.1.1.11 root 2145: if (fd >= 0) {
1.1 root 2146: closesocket(fd);
1.1.1.11 root 2147: }
2148: return ret;
1.1 root 2149: }
2150:
2151: /***********************************************************/
2152: /* TCP Net console */
2153:
2154: typedef struct {
2155: int fd, listen_fd;
2156: int connected;
2157: int max_size;
2158: int do_telnetopt;
2159: int do_nodelay;
2160: int is_unix;
1.1.1.4 root 2161: int msgfd;
1.1 root 2162: } TCPCharDriver;
2163:
2164: static void tcp_chr_accept(void *opaque);
2165:
2166: static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2167: {
2168: TCPCharDriver *s = chr->opaque;
2169: if (s->connected) {
2170: return send_all(s->fd, buf, len);
2171: } else {
2172: /* XXX: indicate an error ? */
2173: return len;
2174: }
2175: }
2176:
2177: static int tcp_chr_read_poll(void *opaque)
2178: {
2179: CharDriverState *chr = opaque;
2180: TCPCharDriver *s = chr->opaque;
2181: if (!s->connected)
2182: return 0;
1.1.1.12! root 2183: s->max_size = qemu_chr_be_can_write(chr);
1.1 root 2184: return s->max_size;
2185: }
2186:
2187: #define IAC 255
2188: #define IAC_BREAK 243
2189: static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2190: TCPCharDriver *s,
2191: uint8_t *buf, int *size)
2192: {
2193: /* Handle any telnet client's basic IAC options to satisfy char by
2194: * char mode with no echo. All IAC options will be removed from
2195: * the buf and the do_telnetopt variable will be used to track the
2196: * state of the width of the IAC information.
2197: *
2198: * IAC commands come in sets of 3 bytes with the exception of the
2199: * "IAC BREAK" command and the double IAC.
2200: */
2201:
2202: int i;
2203: int j = 0;
2204:
2205: for (i = 0; i < *size; i++) {
2206: if (s->do_telnetopt > 1) {
2207: if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2208: /* Double IAC means send an IAC */
2209: if (j != i)
2210: buf[j] = buf[i];
2211: j++;
2212: s->do_telnetopt = 1;
2213: } else {
2214: if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2215: /* Handle IAC break commands by sending a serial break */
1.1.1.12! root 2216: qemu_chr_be_event(chr, CHR_EVENT_BREAK);
1.1 root 2217: s->do_telnetopt++;
2218: }
2219: s->do_telnetopt++;
2220: }
2221: if (s->do_telnetopt >= 4) {
2222: s->do_telnetopt = 1;
2223: }
2224: } else {
2225: if ((unsigned char)buf[i] == IAC) {
2226: s->do_telnetopt = 2;
2227: } else {
2228: if (j != i)
2229: buf[j] = buf[i];
2230: j++;
2231: }
2232: }
2233: }
2234: *size = j;
2235: }
2236:
1.1.1.4 root 2237: static int tcp_get_msgfd(CharDriverState *chr)
2238: {
2239: TCPCharDriver *s = chr->opaque;
1.1.1.8 root 2240: int fd = s->msgfd;
2241: s->msgfd = -1;
2242: return fd;
1.1.1.4 root 2243: }
2244:
1.1.1.5 root 2245: #ifndef _WIN32
1.1.1.4 root 2246: static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2247: {
2248: TCPCharDriver *s = chr->opaque;
2249: struct cmsghdr *cmsg;
2250:
2251: for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2252: int fd;
2253:
2254: if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2255: cmsg->cmsg_level != SOL_SOCKET ||
2256: cmsg->cmsg_type != SCM_RIGHTS)
2257: continue;
2258:
2259: fd = *((int *)CMSG_DATA(cmsg));
2260: if (fd < 0)
2261: continue;
2262:
2263: if (s->msgfd != -1)
2264: close(s->msgfd);
2265: s->msgfd = fd;
2266: }
2267: }
2268:
2269: static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2270: {
2271: TCPCharDriver *s = chr->opaque;
2272: struct msghdr msg = { NULL, };
2273: struct iovec iov[1];
2274: union {
2275: struct cmsghdr cmsg;
2276: char control[CMSG_SPACE(sizeof(int))];
2277: } msg_control;
2278: ssize_t ret;
2279:
2280: iov[0].iov_base = buf;
2281: iov[0].iov_len = len;
2282:
2283: msg.msg_iov = iov;
2284: msg.msg_iovlen = 1;
2285: msg.msg_control = &msg_control;
2286: msg.msg_controllen = sizeof(msg_control);
2287:
2288: ret = recvmsg(s->fd, &msg, 0);
2289: if (ret > 0 && s->is_unix)
2290: unix_process_msgfd(chr, &msg);
2291:
2292: return ret;
2293: }
2294: #else
2295: static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2296: {
2297: TCPCharDriver *s = chr->opaque;
1.1.1.11 root 2298: return qemu_recv(s->fd, buf, len, 0);
1.1.1.4 root 2299: }
2300: #endif
2301:
1.1 root 2302: static void tcp_chr_read(void *opaque)
2303: {
2304: CharDriverState *chr = opaque;
2305: TCPCharDriver *s = chr->opaque;
1.1.1.5 root 2306: uint8_t buf[READ_BUF_LEN];
1.1 root 2307: int len, size;
2308:
2309: if (!s->connected || s->max_size <= 0)
2310: return;
2311: len = sizeof(buf);
2312: if (len > s->max_size)
2313: len = s->max_size;
1.1.1.4 root 2314: size = tcp_chr_recv(chr, (void *)buf, len);
1.1 root 2315: if (size == 0) {
2316: /* connection closed */
2317: s->connected = 0;
2318: if (s->listen_fd >= 0) {
1.1.1.12! root 2319: qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
1.1 root 2320: }
1.1.1.12! root 2321: qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
1.1 root 2322: closesocket(s->fd);
2323: s->fd = -1;
1.1.1.12! root 2324: qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1.1 root 2325: } else if (size > 0) {
2326: if (s->do_telnetopt)
2327: tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2328: if (size > 0)
1.1.1.12! root 2329: qemu_chr_be_write(chr, buf, size);
1.1 root 2330: }
2331: }
2332:
1.1.1.9 root 2333: #ifndef _WIN32
2334: CharDriverState *qemu_chr_open_eventfd(int eventfd)
2335: {
1.1.1.8 root 2336: return qemu_chr_open_fd(eventfd, eventfd);
2337: }
1.1.1.9 root 2338: #endif
1.1.1.8 root 2339:
1.1 root 2340: static void tcp_chr_connect(void *opaque)
2341: {
2342: CharDriverState *chr = opaque;
2343: TCPCharDriver *s = chr->opaque;
2344:
2345: s->connected = 1;
2346: qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2347: tcp_chr_read, NULL, chr);
1.1.1.5 root 2348: qemu_chr_generic_open(chr);
1.1 root 2349: }
2350:
2351: #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2352: static void tcp_chr_telnet_init(int fd)
2353: {
2354: char buf[3];
2355: /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2356: IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2357: send(fd, (char *)buf, 3, 0);
2358: IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2359: send(fd, (char *)buf, 3, 0);
2360: IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2361: send(fd, (char *)buf, 3, 0);
2362: IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2363: send(fd, (char *)buf, 3, 0);
2364: }
2365:
2366: static void socket_set_nodelay(int fd)
2367: {
2368: int val = 1;
2369: setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
2370: }
2371:
1.1.1.11 root 2372: static int tcp_chr_add_client(CharDriverState *chr, int fd)
2373: {
2374: TCPCharDriver *s = chr->opaque;
2375: if (s->fd != -1)
2376: return -1;
2377:
2378: socket_set_nonblock(fd);
2379: if (s->do_nodelay)
2380: socket_set_nodelay(fd);
2381: s->fd = fd;
1.1.1.12! root 2382: qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
1.1.1.11 root 2383: tcp_chr_connect(chr);
2384:
2385: return 0;
2386: }
2387:
1.1 root 2388: static void tcp_chr_accept(void *opaque)
2389: {
2390: CharDriverState *chr = opaque;
2391: TCPCharDriver *s = chr->opaque;
2392: struct sockaddr_in saddr;
2393: #ifndef _WIN32
2394: struct sockaddr_un uaddr;
2395: #endif
2396: struct sockaddr *addr;
2397: socklen_t len;
2398: int fd;
2399:
2400: for(;;) {
2401: #ifndef _WIN32
2402: if (s->is_unix) {
2403: len = sizeof(uaddr);
2404: addr = (struct sockaddr *)&uaddr;
2405: } else
2406: #endif
2407: {
2408: len = sizeof(saddr);
2409: addr = (struct sockaddr *)&saddr;
2410: }
1.1.1.5 root 2411: fd = qemu_accept(s->listen_fd, addr, &len);
1.1 root 2412: if (fd < 0 && errno != EINTR) {
2413: return;
2414: } else if (fd >= 0) {
2415: if (s->do_telnetopt)
2416: tcp_chr_telnet_init(fd);
2417: break;
2418: }
2419: }
1.1.1.11 root 2420: if (tcp_chr_add_client(chr, fd) < 0)
2421: close(fd);
1.1 root 2422: }
2423:
2424: static void tcp_chr_close(CharDriverState *chr)
2425: {
2426: TCPCharDriver *s = chr->opaque;
1.1.1.3 root 2427: if (s->fd >= 0) {
1.1.1.12! root 2428: qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
1.1 root 2429: closesocket(s->fd);
1.1.1.3 root 2430: }
2431: if (s->listen_fd >= 0) {
1.1.1.12! root 2432: qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
1.1 root 2433: closesocket(s->listen_fd);
1.1.1.3 root 2434: }
1.1.1.12! root 2435: g_free(s);
! 2436: qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1.1 root 2437: }
2438:
1.1.1.11 root 2439: static int qemu_chr_open_socket(QemuOpts *opts, CharDriverState **_chr)
1.1 root 2440: {
2441: CharDriverState *chr = NULL;
2442: TCPCharDriver *s = NULL;
1.1.1.5 root 2443: int fd = -1;
2444: int is_listen;
2445: int is_waitconnect;
2446: int do_nodelay;
2447: int is_unix;
2448: int is_telnet;
1.1.1.11 root 2449: int ret;
1.1.1.5 root 2450:
2451: is_listen = qemu_opt_get_bool(opts, "server", 0);
2452: is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2453: is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2454: do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2455: is_unix = qemu_opt_get(opts, "path") != NULL;
1.1 root 2456: if (!is_listen)
2457: is_waitconnect = 0;
2458:
1.1.1.12! root 2459: chr = g_malloc0(sizeof(CharDriverState));
! 2460: s = g_malloc0(sizeof(TCPCharDriver));
1.1 root 2461:
2462: if (is_unix) {
2463: if (is_listen) {
1.1.1.5 root 2464: fd = unix_listen_opts(opts);
1.1 root 2465: } else {
1.1.1.5 root 2466: fd = unix_connect_opts(opts);
1.1 root 2467: }
2468: } else {
2469: if (is_listen) {
1.1.1.5 root 2470: fd = inet_listen_opts(opts, 0);
1.1 root 2471: } else {
1.1.1.5 root 2472: fd = inet_connect_opts(opts);
1.1 root 2473: }
2474: }
1.1.1.11 root 2475: if (fd < 0) {
2476: ret = -errno;
1.1 root 2477: goto fail;
1.1.1.11 root 2478: }
1.1 root 2479:
2480: if (!is_waitconnect)
2481: socket_set_nonblock(fd);
2482:
2483: s->connected = 0;
2484: s->fd = -1;
2485: s->listen_fd = -1;
1.1.1.4 root 2486: s->msgfd = -1;
1.1 root 2487: s->is_unix = is_unix;
2488: s->do_nodelay = do_nodelay && !is_unix;
2489:
2490: chr->opaque = s;
2491: chr->chr_write = tcp_chr_write;
2492: chr->chr_close = tcp_chr_close;
1.1.1.4 root 2493: chr->get_msgfd = tcp_get_msgfd;
1.1.1.11 root 2494: chr->chr_add_client = tcp_chr_add_client;
1.1 root 2495:
2496: if (is_listen) {
2497: s->listen_fd = fd;
1.1.1.12! root 2498: qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
1.1 root 2499: if (is_telnet)
2500: s->do_telnetopt = 1;
1.1.1.5 root 2501:
1.1 root 2502: } else {
2503: s->connected = 1;
2504: s->fd = fd;
2505: socket_set_nodelay(fd);
2506: tcp_chr_connect(chr);
2507: }
2508:
1.1.1.5 root 2509: /* for "info chardev" monitor command */
1.1.1.12! root 2510: chr->filename = g_malloc(256);
1.1.1.5 root 2511: if (is_unix) {
2512: snprintf(chr->filename, 256, "unix:%s%s",
2513: qemu_opt_get(opts, "path"),
2514: qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2515: } else if (is_telnet) {
2516: snprintf(chr->filename, 256, "telnet:%s:%s%s",
2517: qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2518: qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2519: } else {
2520: snprintf(chr->filename, 256, "tcp:%s:%s%s",
2521: qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2522: qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2523: }
2524:
1.1 root 2525: if (is_listen && is_waitconnect) {
2526: printf("QEMU waiting for connection on: %s\n",
1.1.1.5 root 2527: chr->filename);
1.1 root 2528: tcp_chr_accept(chr);
2529: socket_set_nonblock(s->listen_fd);
2530: }
1.1.1.11 root 2531:
2532: *_chr = chr;
2533: return 0;
1.1.1.5 root 2534:
1.1 root 2535: fail:
2536: if (fd >= 0)
2537: closesocket(fd);
1.1.1.12! root 2538: g_free(s);
! 2539: g_free(chr);
1.1.1.11 root 2540: return ret;
1.1 root 2541: }
2542:
1.1.1.9 root 2543: /***********************************************************/
2544: /* Memory chardev */
2545: typedef struct {
2546: size_t outbuf_size;
2547: size_t outbuf_capacity;
2548: uint8_t *outbuf;
2549: } MemoryDriver;
2550:
2551: static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2552: {
2553: MemoryDriver *d = chr->opaque;
2554:
2555: /* TODO: the QString implementation has the same code, we should
2556: * introduce a generic way to do this in cutils.c */
2557: if (d->outbuf_capacity < d->outbuf_size + len) {
2558: /* grow outbuf */
2559: d->outbuf_capacity += len;
2560: d->outbuf_capacity *= 2;
1.1.1.12! root 2561: d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
1.1.1.9 root 2562: }
2563:
2564: memcpy(d->outbuf + d->outbuf_size, buf, len);
2565: d->outbuf_size += len;
2566:
2567: return len;
2568: }
2569:
2570: void qemu_chr_init_mem(CharDriverState *chr)
2571: {
2572: MemoryDriver *d;
2573:
1.1.1.12! root 2574: d = g_malloc(sizeof(*d));
1.1.1.9 root 2575: d->outbuf_size = 0;
2576: d->outbuf_capacity = 4096;
1.1.1.12! root 2577: d->outbuf = g_malloc0(d->outbuf_capacity);
1.1.1.9 root 2578:
2579: memset(chr, 0, sizeof(*chr));
2580: chr->opaque = d;
2581: chr->chr_write = mem_chr_write;
2582: }
2583:
2584: QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2585: {
2586: MemoryDriver *d = chr->opaque;
2587: return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2588: }
2589:
1.1.1.12! root 2590: /* NOTE: this driver can not be closed with qemu_chr_delete()! */
1.1.1.9 root 2591: void qemu_chr_close_mem(CharDriverState *chr)
2592: {
2593: MemoryDriver *d = chr->opaque;
2594:
1.1.1.12! root 2595: g_free(d->outbuf);
! 2596: g_free(chr->opaque);
1.1.1.9 root 2597: chr->opaque = NULL;
2598: chr->chr_write = NULL;
2599: }
2600:
2601: size_t qemu_chr_mem_osize(const CharDriverState *chr)
2602: {
2603: const MemoryDriver *d = chr->opaque;
2604: return d->outbuf_size;
2605: }
2606:
1.1.1.5 root 2607: QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
1.1 root 2608: {
1.1.1.5 root 2609: char host[65], port[33], width[8], height[8];
2610: int pos;
1.1 root 2611: const char *p;
1.1.1.5 root 2612: QemuOpts *opts;
2613:
1.1.1.9 root 2614: opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1);
1.1.1.5 root 2615: if (NULL == opts)
2616: return NULL;
1.1 root 2617:
2618: if (strstart(filename, "mon:", &p)) {
1.1.1.5 root 2619: filename = p;
2620: qemu_opt_set(opts, "mux", "on");
2621: }
2622:
2623: if (strcmp(filename, "null") == 0 ||
2624: strcmp(filename, "pty") == 0 ||
2625: strcmp(filename, "msmouse") == 0 ||
2626: strcmp(filename, "braille") == 0 ||
2627: strcmp(filename, "stdio") == 0) {
2628: qemu_opt_set(opts, "backend", filename);
2629: return opts;
2630: }
2631: if (strstart(filename, "vc", &p)) {
2632: qemu_opt_set(opts, "backend", "vc");
2633: if (*p == ':') {
2634: if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2635: /* pixels */
2636: qemu_opt_set(opts, "width", width);
2637: qemu_opt_set(opts, "height", height);
2638: } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2639: /* chars */
2640: qemu_opt_set(opts, "cols", width);
2641: qemu_opt_set(opts, "rows", height);
2642: } else {
2643: goto fail;
2644: }
1.1 root 2645: }
1.1.1.5 root 2646: return opts;
2647: }
2648: if (strcmp(filename, "con:") == 0) {
2649: qemu_opt_set(opts, "backend", "console");
2650: return opts;
2651: }
2652: if (strstart(filename, "COM", NULL)) {
2653: qemu_opt_set(opts, "backend", "serial");
2654: qemu_opt_set(opts, "path", filename);
2655: return opts;
2656: }
2657: if (strstart(filename, "file:", &p)) {
2658: qemu_opt_set(opts, "backend", "file");
2659: qemu_opt_set(opts, "path", p);
2660: return opts;
2661: }
2662: if (strstart(filename, "pipe:", &p)) {
2663: qemu_opt_set(opts, "backend", "pipe");
2664: qemu_opt_set(opts, "path", p);
2665: return opts;
2666: }
2667: if (strstart(filename, "tcp:", &p) ||
2668: strstart(filename, "telnet:", &p)) {
2669: if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2670: host[0] = 0;
2671: if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2672: goto fail;
2673: }
2674: qemu_opt_set(opts, "backend", "socket");
2675: qemu_opt_set(opts, "host", host);
2676: qemu_opt_set(opts, "port", port);
2677: if (p[pos] == ',') {
2678: if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2679: goto fail;
2680: }
2681: if (strstart(filename, "telnet:", &p))
2682: qemu_opt_set(opts, "telnet", "on");
2683: return opts;
2684: }
2685: if (strstart(filename, "udp:", &p)) {
2686: qemu_opt_set(opts, "backend", "udp");
2687: if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2688: host[0] = 0;
1.1.1.7 root 2689: if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
1.1.1.5 root 2690: goto fail;
2691: }
2692: }
2693: qemu_opt_set(opts, "host", host);
2694: qemu_opt_set(opts, "port", port);
2695: if (p[pos] == '@') {
2696: p += pos + 1;
2697: if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2698: host[0] = 0;
2699: if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2700: goto fail;
2701: }
2702: }
2703: qemu_opt_set(opts, "localaddr", host);
2704: qemu_opt_set(opts, "localport", port);
2705: }
2706: return opts;
2707: }
1.1 root 2708: if (strstart(filename, "unix:", &p)) {
1.1.1.5 root 2709: qemu_opt_set(opts, "backend", "socket");
2710: if (qemu_opts_do_parse(opts, p, "path") != 0)
2711: goto fail;
2712: return opts;
2713: }
2714: if (strstart(filename, "/dev/parport", NULL) ||
2715: strstart(filename, "/dev/ppi", NULL)) {
2716: qemu_opt_set(opts, "backend", "parport");
2717: qemu_opt_set(opts, "path", filename);
2718: return opts;
2719: }
2720: if (strstart(filename, "/dev/", NULL)) {
2721: qemu_opt_set(opts, "backend", "tty");
2722: qemu_opt_set(opts, "path", filename);
2723: return opts;
2724: }
2725:
2726: fail:
2727: qemu_opts_del(opts);
2728: return NULL;
2729: }
2730:
2731: static const struct {
2732: const char *name;
1.1.1.11 root 2733: int (*open)(QemuOpts *opts, CharDriverState **chr);
1.1.1.5 root 2734: } backend_table[] = {
2735: { .name = "null", .open = qemu_chr_open_null },
2736: { .name = "socket", .open = qemu_chr_open_socket },
2737: { .name = "udp", .open = qemu_chr_open_udp },
2738: { .name = "msmouse", .open = qemu_chr_open_msmouse },
2739: { .name = "vc", .open = text_console_init },
2740: #ifdef _WIN32
2741: { .name = "file", .open = qemu_chr_open_win_file_out },
2742: { .name = "pipe", .open = qemu_chr_open_win_pipe },
2743: { .name = "console", .open = qemu_chr_open_win_con },
2744: { .name = "serial", .open = qemu_chr_open_win },
1.1.1.12! root 2745: { .name = "stdio", .open = qemu_chr_open_win_stdio },
1.1.1.5 root 2746: #else
2747: { .name = "file", .open = qemu_chr_open_file_out },
2748: { .name = "pipe", .open = qemu_chr_open_pipe },
2749: { .name = "pty", .open = qemu_chr_open_pty },
2750: { .name = "stdio", .open = qemu_chr_open_stdio },
2751: #endif
2752: #ifdef CONFIG_BRLAPI
2753: { .name = "braille", .open = chr_baum_init },
1.1 root 2754: #endif
2755: #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1.1.1.5 root 2756: || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
2757: || defined(__FreeBSD_kernel__)
2758: { .name = "tty", .open = qemu_chr_open_tty },
1.1 root 2759: #endif
1.1.1.5 root 2760: #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
2761: || defined(__FreeBSD_kernel__)
2762: { .name = "parport", .open = qemu_chr_open_pp },
1.1 root 2763: #endif
1.1.1.9 root 2764: #ifdef CONFIG_SPICE
2765: { .name = "spicevmc", .open = qemu_chr_open_spice },
2766: #endif
1.1.1.5 root 2767: };
2768:
1.1.1.12! root 2769: CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
1.1.1.5 root 2770: void (*init)(struct CharDriverState *s))
2771: {
2772: CharDriverState *chr;
2773: int i;
1.1.1.11 root 2774: int ret;
1.1.1.5 root 2775:
2776: if (qemu_opts_id(opts) == NULL) {
2777: fprintf(stderr, "chardev: no id specified\n");
2778: return NULL;
2779: }
2780:
1.1.1.10 root 2781: if (qemu_opt_get(opts, "backend") == NULL) {
2782: fprintf(stderr, "chardev: \"%s\" missing backend\n",
2783: qemu_opts_id(opts));
2784: return NULL;
2785: }
1.1.1.5 root 2786: for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
2787: if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
2788: break;
2789: }
2790: if (i == ARRAY_SIZE(backend_table)) {
2791: fprintf(stderr, "chardev: backend \"%s\" not found\n",
2792: qemu_opt_get(opts, "backend"));
2793: return NULL;
2794: }
2795:
1.1.1.11 root 2796: ret = backend_table[i].open(opts, &chr);
2797: if (ret < 0) {
2798: fprintf(stderr, "chardev: opening backend \"%s\" failed: %s\n",
2799: qemu_opt_get(opts, "backend"), strerror(-ret));
1.1.1.5 root 2800: return NULL;
2801: }
2802:
2803: if (!chr->filename)
1.1.1.12! root 2804: chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
1.1.1.5 root 2805: chr->init = init;
2806: QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2807:
2808: if (qemu_opt_get_bool(opts, "mux", 0)) {
2809: CharDriverState *base = chr;
2810: int len = strlen(qemu_opts_id(opts)) + 6;
1.1.1.12! root 2811: base->label = g_malloc(len);
1.1.1.5 root 2812: snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
2813: chr = qemu_chr_open_mux(base);
2814: chr->filename = base->filename;
1.1.1.11 root 2815: chr->avail_connections = MAX_MUX;
1.1.1.5 root 2816: QTAILQ_INSERT_TAIL(&chardevs, chr, next);
1.1.1.11 root 2817: } else {
2818: chr->avail_connections = 1;
1.1.1.5 root 2819: }
1.1.1.12! root 2820: chr->label = g_strdup(qemu_opts_id(opts));
1.1.1.5 root 2821: return chr;
2822: }
2823:
1.1.1.12! root 2824: CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
1.1.1.5 root 2825: {
2826: const char *p;
2827: CharDriverState *chr;
2828: QemuOpts *opts;
2829:
2830: if (strstart(filename, "chardev:", &p)) {
2831: return qemu_chr_find(p);
1.1 root 2832: }
2833:
1.1.1.5 root 2834: opts = qemu_chr_parse_compat(label, filename);
2835: if (!opts)
2836: return NULL;
2837:
1.1.1.12! root 2838: chr = qemu_chr_new_from_opts(opts, init);
1.1.1.5 root 2839: if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
2840: monitor_init(chr, MONITOR_USE_READLINE);
1.1 root 2841: }
1.1.1.9 root 2842: qemu_opts_del(opts);
1.1 root 2843: return chr;
2844: }
2845:
1.1.1.12! root 2846: void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
1.1.1.9 root 2847: {
2848: if (chr->chr_set_echo) {
2849: chr->chr_set_echo(chr, echo);
2850: }
2851: }
2852:
1.1.1.12! root 2853: void qemu_chr_fe_open(struct CharDriverState *chr)
1.1.1.11 root 2854: {
2855: if (chr->chr_guest_open) {
2856: chr->chr_guest_open(chr);
2857: }
2858: }
2859:
1.1.1.12! root 2860: void qemu_chr_fe_close(struct CharDriverState *chr)
1.1.1.11 root 2861: {
2862: if (chr->chr_guest_close) {
2863: chr->chr_guest_close(chr);
2864: }
2865: }
2866:
1.1.1.12! root 2867: void qemu_chr_delete(CharDriverState *chr)
1.1 root 2868: {
1.1.1.5 root 2869: QTAILQ_REMOVE(&chardevs, chr, next);
1.1 root 2870: if (chr->chr_close)
2871: chr->chr_close(chr);
1.1.1.12! root 2872: g_free(chr->filename);
! 2873: g_free(chr->label);
! 2874: g_free(chr);
1.1.1.5 root 2875: }
2876:
1.1.1.12! root 2877: ChardevInfoList *qmp_query_chardev(Error **errp)
1.1.1.5 root 2878: {
1.1.1.12! root 2879: ChardevInfoList *chr_list = NULL;
1.1.1.5 root 2880: CharDriverState *chr;
2881:
2882: QTAILQ_FOREACH(chr, &chardevs, next) {
1.1.1.12! root 2883: ChardevInfoList *info = g_malloc0(sizeof(*info));
! 2884: info->value = g_malloc0(sizeof(*info->value));
! 2885: info->value->label = g_strdup(chr->label);
! 2886: info->value->filename = g_strdup(chr->filename);
! 2887:
! 2888: info->next = chr_list;
! 2889: chr_list = info;
1.1.1.5 root 2890: }
2891:
1.1.1.12! root 2892: return chr_list;
1.1.1.5 root 2893: }
2894:
2895: CharDriverState *qemu_chr_find(const char *name)
1.1 root 2896: {
2897: CharDriverState *chr;
2898:
1.1.1.5 root 2899: QTAILQ_FOREACH(chr, &chardevs, next) {
2900: if (strcmp(chr->label, name) != 0)
2901: continue;
2902: return chr;
1.1 root 2903: }
1.1.1.5 root 2904: return NULL;
1.1 root 2905: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.