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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"
26: #include "console.h"
27: #include "sysemu.h"
28: #include "qemu-timer.h"
29: #include "qemu-char.h"
30: #include "block.h"
31: #include "hw/usb.h"
32: #include "hw/baum.h"
33: #include "hw/msmouse.h"
34:
35: #include <unistd.h>
36: #include <fcntl.h>
37: #include <signal.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: #ifdef __NetBSD__
54: #include <net/if_tap.h>
55: #endif
56: #ifdef __linux__
57: #include <linux/if_tun.h>
58: #endif
59: #include <arpa/inet.h>
60: #include <dirent.h>
61: #include <netdb.h>
62: #include <sys/select.h>
63: #ifdef _BSD
64: #include <sys/stat.h>
65: #ifdef __FreeBSD__
66: #include <libutil.h>
67: #include <dev/ppbus/ppi.h>
68: #include <dev/ppbus/ppbconf.h>
69: #else
70: #include <util.h>
71: #endif
72: #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
73: #include <freebsd/stdlib.h>
74: #else
75: #ifdef __linux__
76: #include <pty.h>
77:
78: #include <linux/ppdev.h>
79: #include <linux/parport.h>
80: #endif
81: #ifdef __sun__
82: #include <sys/stat.h>
83: #include <sys/ethernet.h>
84: #include <sys/sockio.h>
85: #include <netinet/arp.h>
86: #include <netinet/in.h>
87: #include <netinet/in_systm.h>
88: #include <netinet/ip.h>
89: #include <netinet/ip_icmp.h> // must come after ip.h
90: #include <netinet/udp.h>
91: #include <netinet/tcp.h>
92: #include <net/if.h>
93: #include <syslog.h>
94: #include <stropts.h>
95: #endif
96: #endif
97: #endif
98:
99: #include "qemu_socket.h"
100:
101: /***********************************************************/
102: /* character device */
103:
1.1.1.2 ! root 104: static TAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
! 105: TAILQ_HEAD_INITIALIZER(chardevs);
! 106: static int initial_reset_issued;
! 107:
1.1 root 108: static void qemu_chr_event(CharDriverState *s, int event)
109: {
110: if (!s->chr_event)
111: return;
112: s->chr_event(s->handler_opaque, event);
113: }
114:
115: static void qemu_chr_reset_bh(void *opaque)
116: {
117: CharDriverState *s = opaque;
118: qemu_chr_event(s, CHR_EVENT_RESET);
119: qemu_bh_delete(s->bh);
120: s->bh = NULL;
121: }
122:
123: void qemu_chr_reset(CharDriverState *s)
124: {
1.1.1.2 ! root 125: if (s->bh == NULL && initial_reset_issued) {
1.1 root 126: s->bh = qemu_bh_new(qemu_chr_reset_bh, s);
127: qemu_bh_schedule(s->bh);
128: }
129: }
130:
1.1.1.2 ! root 131: void qemu_chr_initial_reset(void)
! 132: {
! 133: CharDriverState *chr;
! 134:
! 135: initial_reset_issued = 1;
! 136:
! 137: TAILQ_FOREACH(chr, &chardevs, next) {
! 138: qemu_chr_reset(chr);
! 139: }
! 140: }
! 141:
1.1 root 142: int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
143: {
144: return s->chr_write(s, buf, len);
145: }
146:
147: int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg)
148: {
149: if (!s->chr_ioctl)
150: return -ENOTSUP;
151: return s->chr_ioctl(s, cmd, arg);
152: }
153:
154: int qemu_chr_can_read(CharDriverState *s)
155: {
156: if (!s->chr_can_read)
157: return 0;
158: return s->chr_can_read(s->handler_opaque);
159: }
160:
161: void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len)
162: {
163: s->chr_read(s->handler_opaque, buf, len);
164: }
165:
166: void qemu_chr_accept_input(CharDriverState *s)
167: {
168: if (s->chr_accept_input)
169: s->chr_accept_input(s);
170: }
171:
172: void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
173: {
174: char buf[4096];
175: va_list ap;
176: va_start(ap, fmt);
177: vsnprintf(buf, sizeof(buf), fmt, ap);
178: qemu_chr_write(s, (uint8_t *)buf, strlen(buf));
179: va_end(ap);
180: }
181:
182: void qemu_chr_send_event(CharDriverState *s, int event)
183: {
184: if (s->chr_send_event)
185: s->chr_send_event(s, event);
186: }
187:
188: void qemu_chr_add_handlers(CharDriverState *s,
189: IOCanRWHandler *fd_can_read,
190: IOReadHandler *fd_read,
191: IOEventHandler *fd_event,
192: void *opaque)
193: {
194: s->chr_can_read = fd_can_read;
195: s->chr_read = fd_read;
196: s->chr_event = fd_event;
197: s->handler_opaque = opaque;
198: if (s->chr_update_read_handler)
199: s->chr_update_read_handler(s);
200: }
201:
202: static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
203: {
204: return len;
205: }
206:
207: static CharDriverState *qemu_chr_open_null(void)
208: {
209: CharDriverState *chr;
210:
211: chr = qemu_mallocz(sizeof(CharDriverState));
212: chr->chr_write = null_chr_write;
213: return chr;
214: }
215:
216: /* MUX driver for serial I/O splitting */
217: static int term_timestamps;
218: static int64_t term_timestamps_start;
219: #define MAX_MUX 4
220: #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
221: #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
222: typedef struct {
223: IOCanRWHandler *chr_can_read[MAX_MUX];
224: IOReadHandler *chr_read[MAX_MUX];
225: IOEventHandler *chr_event[MAX_MUX];
226: void *ext_opaque[MAX_MUX];
227: CharDriverState *drv;
228: int mux_cnt;
229: int term_got_escape;
230: int max_size;
1.1.1.2 ! root 231: /* Intermediate input buffer allows to catch escape sequences even if the
! 232: currently active device is not accepting any input - but only until it
! 233: is full as well. */
! 234: unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
! 235: int prod[MAX_MUX];
! 236: int cons[MAX_MUX];
1.1 root 237: } MuxDriver;
238:
239:
240: static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
241: {
242: MuxDriver *d = chr->opaque;
243: int ret;
244: if (!term_timestamps) {
245: ret = d->drv->chr_write(d->drv, buf, len);
246: } else {
247: int i;
248:
249: ret = 0;
250: for(i = 0; i < len; i++) {
251: ret += d->drv->chr_write(d->drv, buf+i, 1);
252: if (buf[i] == '\n') {
253: char buf1[64];
254: int64_t ti;
255: int secs;
256:
257: ti = qemu_get_clock(rt_clock);
258: if (term_timestamps_start == -1)
259: term_timestamps_start = ti;
260: ti -= term_timestamps_start;
261: secs = ti / 1000;
262: snprintf(buf1, sizeof(buf1),
263: "[%02d:%02d:%02d.%03d] ",
264: secs / 3600,
265: (secs / 60) % 60,
266: secs % 60,
267: (int)(ti % 1000));
268: d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
269: }
270: }
271: }
272: return ret;
273: }
274:
275: static const char * const mux_help[] = {
276: "% h print this help\n\r",
277: "% x exit emulator\n\r",
278: "% s save disk data back to file (if -snapshot)\n\r",
279: "% t toggle console timestamps\n\r"
280: "% b send break (magic sysrq)\n\r",
281: "% c switch between console and monitor\n\r",
282: "% % sends %\n\r",
283: NULL
284: };
285:
286: int term_escape_char = 0x01; /* ctrl-a is used for escape */
287: static void mux_print_help(CharDriverState *chr)
288: {
289: int i, j;
290: char ebuf[15] = "Escape-Char";
291: char cbuf[50] = "\n\r";
292:
293: if (term_escape_char > 0 && term_escape_char < 26) {
294: snprintf(cbuf, sizeof(cbuf), "\n\r");
295: snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
296: } else {
297: snprintf(cbuf, sizeof(cbuf),
298: "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
299: term_escape_char);
300: }
301: chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
302: for (i = 0; mux_help[i] != NULL; i++) {
303: for (j=0; mux_help[i][j] != '\0'; j++) {
304: if (mux_help[i][j] == '%')
305: chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
306: else
307: chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
308: }
309: }
310: }
311:
312: static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
313: {
314: if (d->term_got_escape) {
315: d->term_got_escape = 0;
316: if (ch == term_escape_char)
317: goto send_char;
318: switch(ch) {
319: case '?':
320: case 'h':
321: mux_print_help(chr);
322: break;
323: case 'x':
324: {
325: const char *term = "QEMU: Terminated\n\r";
326: chr->chr_write(chr,(uint8_t *)term,strlen(term));
327: exit(0);
328: break;
329: }
330: case 's':
331: {
332: int i;
333: for (i = 0; i < nb_drives; i++) {
334: bdrv_commit(drives_table[i].bdrv);
335: }
336: }
337: break;
338: case 'b':
339: qemu_chr_event(chr, CHR_EVENT_BREAK);
340: break;
341: case 'c':
342: /* Switch to the next registered device */
343: chr->focus++;
344: if (chr->focus >= d->mux_cnt)
345: chr->focus = 0;
346: break;
347: case 't':
348: term_timestamps = !term_timestamps;
349: term_timestamps_start = -1;
350: break;
351: }
352: } else if (ch == term_escape_char) {
353: d->term_got_escape = 1;
354: } else {
355: send_char:
356: return 1;
357: }
358: return 0;
359: }
360:
361: static void mux_chr_accept_input(CharDriverState *chr)
362: {
363: int m = chr->focus;
364: MuxDriver *d = chr->opaque;
365:
1.1.1.2 ! root 366: while (d->prod[m] != d->cons[m] &&
1.1 root 367: d->chr_can_read[m] &&
368: d->chr_can_read[m](d->ext_opaque[m])) {
369: d->chr_read[m](d->ext_opaque[m],
1.1.1.2 ! root 370: &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
1.1 root 371: }
372: }
373:
374: static int mux_chr_can_read(void *opaque)
375: {
376: CharDriverState *chr = opaque;
377: MuxDriver *d = chr->opaque;
1.1.1.2 ! root 378: int m = chr->focus;
1.1 root 379:
1.1.1.2 ! root 380: if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
1.1 root 381: return 1;
1.1.1.2 ! root 382: if (d->chr_can_read[m])
! 383: return d->chr_can_read[m](d->ext_opaque[m]);
1.1 root 384: return 0;
385: }
386:
387: static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
388: {
389: CharDriverState *chr = opaque;
390: MuxDriver *d = chr->opaque;
391: int m = chr->focus;
392: int i;
393:
394: mux_chr_accept_input (opaque);
395:
396: for(i = 0; i < size; i++)
397: if (mux_proc_byte(chr, d, buf[i])) {
1.1.1.2 ! root 398: if (d->prod[m] == d->cons[m] &&
1.1 root 399: d->chr_can_read[m] &&
400: d->chr_can_read[m](d->ext_opaque[m]))
401: d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
402: else
1.1.1.2 ! root 403: d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
1.1 root 404: }
405: }
406:
407: static void mux_chr_event(void *opaque, int event)
408: {
409: CharDriverState *chr = opaque;
410: MuxDriver *d = chr->opaque;
411: int i;
412:
413: /* Send the event to all registered listeners */
414: for (i = 0; i < d->mux_cnt; i++)
415: if (d->chr_event[i])
416: d->chr_event[i](d->ext_opaque[i], event);
417: }
418:
419: static void mux_chr_update_read_handler(CharDriverState *chr)
420: {
421: MuxDriver *d = chr->opaque;
422:
423: if (d->mux_cnt >= MAX_MUX) {
424: fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
425: return;
426: }
427: d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
428: d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
429: d->chr_read[d->mux_cnt] = chr->chr_read;
430: d->chr_event[d->mux_cnt] = chr->chr_event;
431: /* Fix up the real driver with mux routines */
432: if (d->mux_cnt == 0) {
433: qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
434: mux_chr_event, chr);
435: }
436: chr->focus = d->mux_cnt;
437: d->mux_cnt++;
438: }
439:
440: static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
441: {
442: CharDriverState *chr;
443: MuxDriver *d;
444:
445: chr = qemu_mallocz(sizeof(CharDriverState));
446: d = qemu_mallocz(sizeof(MuxDriver));
447:
448: chr->opaque = d;
449: d->drv = drv;
450: chr->focus = -1;
451: chr->chr_write = mux_chr_write;
452: chr->chr_update_read_handler = mux_chr_update_read_handler;
453: chr->chr_accept_input = mux_chr_accept_input;
454: return chr;
455: }
456:
457:
458: #ifdef _WIN32
459: int send_all(int fd, const void *buf, int len1)
460: {
461: int ret, len;
462:
463: len = len1;
464: while (len > 0) {
465: ret = send(fd, buf, len, 0);
466: if (ret < 0) {
467: errno = WSAGetLastError();
468: if (errno != WSAEWOULDBLOCK) {
469: return -1;
470: }
471: } else if (ret == 0) {
472: break;
473: } else {
474: buf += ret;
475: len -= ret;
476: }
477: }
478: return len1 - len;
479: }
480:
481: #else
482:
483: static int unix_write(int fd, const uint8_t *buf, int len1)
484: {
485: int ret, len;
486:
487: len = len1;
488: while (len > 0) {
489: ret = write(fd, buf, len);
490: if (ret < 0) {
491: if (errno != EINTR && errno != EAGAIN)
492: return -1;
493: } else if (ret == 0) {
494: break;
495: } else {
496: buf += ret;
497: len -= ret;
498: }
499: }
500: return len1 - len;
501: }
502:
503: int send_all(int fd, const void *buf, int len1)
504: {
505: return unix_write(fd, buf, len1);
506: }
507: #endif /* !_WIN32 */
508:
509: #ifndef _WIN32
510:
511: typedef struct {
512: int fd_in, fd_out;
513: int max_size;
514: } FDCharDriver;
515:
516: #define STDIO_MAX_CLIENTS 1
517: static int stdio_nb_clients = 0;
518:
519: static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
520: {
521: FDCharDriver *s = chr->opaque;
522: return send_all(s->fd_out, buf, len);
523: }
524:
525: static int fd_chr_read_poll(void *opaque)
526: {
527: CharDriverState *chr = opaque;
528: FDCharDriver *s = chr->opaque;
529:
530: s->max_size = qemu_chr_can_read(chr);
531: return s->max_size;
532: }
533:
534: static void fd_chr_read(void *opaque)
535: {
536: CharDriverState *chr = opaque;
537: FDCharDriver *s = chr->opaque;
538: int size, len;
539: uint8_t buf[1024];
540:
541: len = sizeof(buf);
542: if (len > s->max_size)
543: len = s->max_size;
544: if (len == 0)
545: return;
546: size = read(s->fd_in, buf, len);
547: if (size == 0) {
548: /* FD has been closed. Remove it from the active list. */
549: qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
550: return;
551: }
552: if (size > 0) {
553: qemu_chr_read(chr, buf, size);
554: }
555: }
556:
557: static void fd_chr_update_read_handler(CharDriverState *chr)
558: {
559: FDCharDriver *s = chr->opaque;
560:
561: if (s->fd_in >= 0) {
562: if (nographic && s->fd_in == 0) {
563: } else {
564: qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
565: fd_chr_read, NULL, chr);
566: }
567: }
568: }
569:
570: static void fd_chr_close(struct CharDriverState *chr)
571: {
572: FDCharDriver *s = chr->opaque;
573:
574: if (s->fd_in >= 0) {
575: if (nographic && s->fd_in == 0) {
576: } else {
577: qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
578: }
579: }
580:
581: qemu_free(s);
582: }
583:
584: /* open a character device to a unix fd */
585: static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
586: {
587: CharDriverState *chr;
588: FDCharDriver *s;
589:
590: chr = qemu_mallocz(sizeof(CharDriverState));
591: s = qemu_mallocz(sizeof(FDCharDriver));
592: s->fd_in = fd_in;
593: s->fd_out = fd_out;
594: chr->opaque = s;
595: chr->chr_write = fd_chr_write;
596: chr->chr_update_read_handler = fd_chr_update_read_handler;
597: chr->chr_close = fd_chr_close;
598:
599: qemu_chr_reset(chr);
600:
601: return chr;
602: }
603:
604: static CharDriverState *qemu_chr_open_file_out(const char *file_out)
605: {
606: int fd_out;
607:
608: TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
609: if (fd_out < 0)
610: return NULL;
611: return qemu_chr_open_fd(-1, fd_out);
612: }
613:
614: static CharDriverState *qemu_chr_open_pipe(const char *filename)
615: {
616: int fd_in, fd_out;
617: char filename_in[256], filename_out[256];
618:
619: snprintf(filename_in, 256, "%s.in", filename);
620: snprintf(filename_out, 256, "%s.out", filename);
621: TFR(fd_in = open(filename_in, O_RDWR | O_BINARY));
622: TFR(fd_out = open(filename_out, O_RDWR | O_BINARY));
623: if (fd_in < 0 || fd_out < 0) {
624: if (fd_in >= 0)
625: close(fd_in);
626: if (fd_out >= 0)
627: close(fd_out);
628: TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY));
629: if (fd_in < 0)
630: return NULL;
631: }
632: return qemu_chr_open_fd(fd_in, fd_out);
633: }
634:
635:
636: /* for STDIO, we handle the case where several clients use it
637: (nographic mode) */
638:
639: #define TERM_FIFO_MAX_SIZE 1
640:
641: static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
642: static int term_fifo_size;
643:
644: static int stdio_read_poll(void *opaque)
645: {
646: CharDriverState *chr = opaque;
647:
648: /* try to flush the queue if needed */
649: if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) {
650: qemu_chr_read(chr, term_fifo, 1);
651: term_fifo_size = 0;
652: }
653: /* see if we can absorb more chars */
654: if (term_fifo_size == 0)
655: return 1;
656: else
657: return 0;
658: }
659:
660: static void stdio_read(void *opaque)
661: {
662: int size;
663: uint8_t buf[1];
664: CharDriverState *chr = opaque;
665:
666: size = read(0, buf, 1);
667: if (size == 0) {
668: /* stdin has been closed. Remove it from the active list. */
669: qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
670: return;
671: }
672: if (size > 0) {
673: if (qemu_chr_can_read(chr) > 0) {
674: qemu_chr_read(chr, buf, 1);
675: } else if (term_fifo_size == 0) {
676: term_fifo[term_fifo_size++] = buf[0];
677: }
678: }
679: }
680:
681: /* init terminal so that we can grab keys */
682: static struct termios oldtty;
683: static int old_fd0_flags;
684: static int term_atexit_done;
685:
686: static void term_exit(void)
687: {
688: tcsetattr (0, TCSANOW, &oldtty);
689: fcntl(0, F_SETFL, old_fd0_flags);
690: }
691:
692: static void term_init(void)
693: {
694: struct termios tty;
695:
696: tcgetattr (0, &tty);
697: oldtty = tty;
698: old_fd0_flags = fcntl(0, F_GETFL);
699:
700: tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
701: |INLCR|IGNCR|ICRNL|IXON);
702: tty.c_oflag |= OPOST;
703: tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
704: /* if graphical mode, we allow Ctrl-C handling */
705: if (nographic)
706: tty.c_lflag &= ~ISIG;
707: tty.c_cflag &= ~(CSIZE|PARENB);
708: tty.c_cflag |= CS8;
709: tty.c_cc[VMIN] = 1;
710: tty.c_cc[VTIME] = 0;
711:
712: tcsetattr (0, TCSANOW, &tty);
713:
714: if (!term_atexit_done++)
715: atexit(term_exit);
716:
717: fcntl(0, F_SETFL, O_NONBLOCK);
718: }
719:
720: static void qemu_chr_close_stdio(struct CharDriverState *chr)
721: {
722: term_exit();
723: stdio_nb_clients--;
724: qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
725: fd_chr_close(chr);
726: }
727:
728: static CharDriverState *qemu_chr_open_stdio(void)
729: {
730: CharDriverState *chr;
731:
732: if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
733: return NULL;
734: chr = qemu_chr_open_fd(0, 1);
735: chr->chr_close = qemu_chr_close_stdio;
736: qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
737: stdio_nb_clients++;
738: term_init();
739:
740: return chr;
741: }
742:
743: #ifdef __sun__
744: /* Once Solaris has openpty(), this is going to be removed. */
745: int openpty(int *amaster, int *aslave, char *name,
746: struct termios *termp, struct winsize *winp)
747: {
748: const char *slave;
749: int mfd = -1, sfd = -1;
750:
751: *amaster = *aslave = -1;
752:
753: mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
754: if (mfd < 0)
755: goto err;
756:
757: if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
758: goto err;
759:
760: if ((slave = ptsname(mfd)) == NULL)
761: goto err;
762:
763: if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
764: goto err;
765:
766: if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
767: (termp != NULL && tcgetattr(sfd, termp) < 0))
768: goto err;
769:
770: if (amaster)
771: *amaster = mfd;
772: if (aslave)
773: *aslave = sfd;
774: if (winp)
775: ioctl(sfd, TIOCSWINSZ, winp);
776:
777: return 0;
778:
779: err:
780: if (sfd != -1)
781: close(sfd);
782: close(mfd);
783: return -1;
784: }
785:
786: void cfmakeraw (struct termios *termios_p)
787: {
788: termios_p->c_iflag &=
789: ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
790: termios_p->c_oflag &= ~OPOST;
791: termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
792: termios_p->c_cflag &= ~(CSIZE|PARENB);
793: termios_p->c_cflag |= CS8;
794:
795: termios_p->c_cc[VMIN] = 0;
796: termios_p->c_cc[VTIME] = 0;
797: }
798: #endif
799:
800: #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
801: || defined(__NetBSD__) || defined(__OpenBSD__)
802:
803: typedef struct {
804: int fd;
805: int connected;
806: int polling;
807: int read_bytes;
808: QEMUTimer *timer;
809: } PtyCharDriver;
810:
811: static void pty_chr_update_read_handler(CharDriverState *chr);
812: static void pty_chr_state(CharDriverState *chr, int connected);
813:
814: static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
815: {
816: PtyCharDriver *s = chr->opaque;
817:
818: if (!s->connected) {
819: /* guest sends data, check for (re-)connect */
820: pty_chr_update_read_handler(chr);
821: return 0;
822: }
823: return send_all(s->fd, buf, len);
824: }
825:
826: static int pty_chr_read_poll(void *opaque)
827: {
828: CharDriverState *chr = opaque;
829: PtyCharDriver *s = chr->opaque;
830:
831: s->read_bytes = qemu_chr_can_read(chr);
832: return s->read_bytes;
833: }
834:
835: static void pty_chr_read(void *opaque)
836: {
837: CharDriverState *chr = opaque;
838: PtyCharDriver *s = chr->opaque;
839: int size, len;
840: uint8_t buf[1024];
841:
842: len = sizeof(buf);
843: if (len > s->read_bytes)
844: len = s->read_bytes;
845: if (len == 0)
846: return;
847: size = read(s->fd, buf, len);
848: if ((size == -1 && errno == EIO) ||
849: (size == 0)) {
850: pty_chr_state(chr, 0);
851: return;
852: }
853: if (size > 0) {
854: pty_chr_state(chr, 1);
855: qemu_chr_read(chr, buf, size);
856: }
857: }
858:
859: static void pty_chr_update_read_handler(CharDriverState *chr)
860: {
861: PtyCharDriver *s = chr->opaque;
862:
863: qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
864: pty_chr_read, NULL, chr);
865: s->polling = 1;
866: /*
867: * Short timeout here: just need wait long enougth that qemu makes
868: * it through the poll loop once. When reconnected we want a
869: * short timeout so we notice it almost instantly. Otherwise
870: * read() gives us -EIO instantly, making pty_chr_state() reset the
871: * timeout to the normal (much longer) poll interval before the
872: * timer triggers.
873: */
874: qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
875: }
876:
877: static void pty_chr_state(CharDriverState *chr, int connected)
878: {
879: PtyCharDriver *s = chr->opaque;
880:
881: if (!connected) {
882: qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
883: s->connected = 0;
884: s->polling = 0;
885: /* (re-)connect poll interval for idle guests: once per second.
886: * We check more frequently in case the guests sends data to
887: * the virtual device linked to our pty. */
888: qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
889: } else {
890: if (!s->connected)
891: qemu_chr_reset(chr);
892: s->connected = 1;
893: }
894: }
895:
896: static void pty_chr_timer(void *opaque)
897: {
898: struct CharDriverState *chr = opaque;
899: PtyCharDriver *s = chr->opaque;
900:
901: if (s->connected)
902: return;
903: if (s->polling) {
904: /* If we arrive here without polling being cleared due
905: * read returning -EIO, then we are (re-)connected */
906: pty_chr_state(chr, 1);
907: return;
908: }
909:
910: /* Next poll ... */
911: pty_chr_update_read_handler(chr);
912: }
913:
914: static void pty_chr_close(struct CharDriverState *chr)
915: {
916: PtyCharDriver *s = chr->opaque;
917:
918: qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
919: close(s->fd);
920: qemu_free(s);
921: }
922:
923: static CharDriverState *qemu_chr_open_pty(void)
924: {
925: CharDriverState *chr;
926: PtyCharDriver *s;
927: struct termios tty;
928: int slave_fd, len;
929: #if defined(__OpenBSD__)
930: char pty_name[PATH_MAX];
931: #define q_ptsname(x) pty_name
932: #else
933: char *pty_name = NULL;
934: #define q_ptsname(x) ptsname(x)
935: #endif
936:
937: chr = qemu_mallocz(sizeof(CharDriverState));
938: s = qemu_mallocz(sizeof(PtyCharDriver));
939:
940: if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) {
941: return NULL;
942: }
943:
944: /* Set raw attributes on the pty. */
945: tcgetattr(slave_fd, &tty);
946: cfmakeraw(&tty);
947: tcsetattr(slave_fd, TCSAFLUSH, &tty);
948: close(slave_fd);
949:
950: len = strlen(q_ptsname(s->fd)) + 5;
951: chr->filename = qemu_malloc(len);
952: snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
953: fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
954:
955: chr->opaque = s;
956: chr->chr_write = pty_chr_write;
957: chr->chr_update_read_handler = pty_chr_update_read_handler;
958: chr->chr_close = pty_chr_close;
959:
960: s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr);
961:
962: return chr;
963: }
964:
965: static void tty_serial_init(int fd, int speed,
966: int parity, int data_bits, int stop_bits)
967: {
968: struct termios tty;
969: speed_t spd;
970:
971: #if 0
972: printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
973: speed, parity, data_bits, stop_bits);
974: #endif
975: tcgetattr (fd, &tty);
976:
977: #define MARGIN 1.1
978: if (speed <= 50 * MARGIN)
979: spd = B50;
980: else if (speed <= 75 * MARGIN)
981: spd = B75;
982: else if (speed <= 300 * MARGIN)
983: spd = B300;
984: else if (speed <= 600 * MARGIN)
985: spd = B600;
986: else if (speed <= 1200 * MARGIN)
987: spd = B1200;
988: else if (speed <= 2400 * MARGIN)
989: spd = B2400;
990: else if (speed <= 4800 * MARGIN)
991: spd = B4800;
992: else if (speed <= 9600 * MARGIN)
993: spd = B9600;
994: else if (speed <= 19200 * MARGIN)
995: spd = B19200;
996: else if (speed <= 38400 * MARGIN)
997: spd = B38400;
998: else if (speed <= 57600 * MARGIN)
999: spd = B57600;
1000: else if (speed <= 115200 * MARGIN)
1001: spd = B115200;
1002: else
1003: spd = B115200;
1004:
1005: cfsetispeed(&tty, spd);
1006: cfsetospeed(&tty, spd);
1007:
1008: tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1009: |INLCR|IGNCR|ICRNL|IXON);
1010: tty.c_oflag |= OPOST;
1011: tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1012: tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1013: switch(data_bits) {
1014: default:
1015: case 8:
1016: tty.c_cflag |= CS8;
1017: break;
1018: case 7:
1019: tty.c_cflag |= CS7;
1020: break;
1021: case 6:
1022: tty.c_cflag |= CS6;
1023: break;
1024: case 5:
1025: tty.c_cflag |= CS5;
1026: break;
1027: }
1028: switch(parity) {
1029: default:
1030: case 'N':
1031: break;
1032: case 'E':
1033: tty.c_cflag |= PARENB;
1034: break;
1035: case 'O':
1036: tty.c_cflag |= PARENB | PARODD;
1037: break;
1038: }
1039: if (stop_bits == 2)
1040: tty.c_cflag |= CSTOPB;
1041:
1042: tcsetattr (fd, TCSANOW, &tty);
1043: }
1044:
1045: static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1046: {
1047: FDCharDriver *s = chr->opaque;
1048:
1049: switch(cmd) {
1050: case CHR_IOCTL_SERIAL_SET_PARAMS:
1051: {
1052: QEMUSerialSetParams *ssp = arg;
1053: tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1054: ssp->data_bits, ssp->stop_bits);
1055: }
1056: break;
1057: case CHR_IOCTL_SERIAL_SET_BREAK:
1058: {
1059: int enable = *(int *)arg;
1060: if (enable)
1061: tcsendbreak(s->fd_in, 1);
1062: }
1063: break;
1064: case CHR_IOCTL_SERIAL_GET_TIOCM:
1065: {
1066: int sarg = 0;
1067: int *targ = (int *)arg;
1068: ioctl(s->fd_in, TIOCMGET, &sarg);
1069: *targ = 0;
1070: if (sarg & TIOCM_CTS)
1071: *targ |= CHR_TIOCM_CTS;
1072: if (sarg & TIOCM_CAR)
1073: *targ |= CHR_TIOCM_CAR;
1074: if (sarg & TIOCM_DSR)
1075: *targ |= CHR_TIOCM_DSR;
1076: if (sarg & TIOCM_RI)
1077: *targ |= CHR_TIOCM_RI;
1078: if (sarg & TIOCM_DTR)
1079: *targ |= CHR_TIOCM_DTR;
1080: if (sarg & TIOCM_RTS)
1081: *targ |= CHR_TIOCM_RTS;
1082: }
1083: break;
1084: case CHR_IOCTL_SERIAL_SET_TIOCM:
1085: {
1086: int sarg = *(int *)arg;
1087: int targ = 0;
1088: ioctl(s->fd_in, TIOCMGET, &targ);
1089: targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1090: | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1091: if (sarg & CHR_TIOCM_CTS)
1092: targ |= TIOCM_CTS;
1093: if (sarg & CHR_TIOCM_CAR)
1094: targ |= TIOCM_CAR;
1095: if (sarg & CHR_TIOCM_DSR)
1096: targ |= TIOCM_DSR;
1097: if (sarg & CHR_TIOCM_RI)
1098: targ |= TIOCM_RI;
1099: if (sarg & CHR_TIOCM_DTR)
1100: targ |= TIOCM_DTR;
1101: if (sarg & CHR_TIOCM_RTS)
1102: targ |= TIOCM_RTS;
1103: ioctl(s->fd_in, TIOCMSET, &targ);
1104: }
1105: break;
1106: default:
1107: return -ENOTSUP;
1108: }
1109: return 0;
1110: }
1111:
1112: static CharDriverState *qemu_chr_open_tty(const char *filename)
1113: {
1114: CharDriverState *chr;
1115: int fd;
1116:
1117: TFR(fd = open(filename, O_RDWR | O_NONBLOCK));
1118: tty_serial_init(fd, 115200, 'N', 8, 1);
1119: chr = qemu_chr_open_fd(fd, fd);
1120: if (!chr) {
1121: close(fd);
1122: return NULL;
1123: }
1124: chr->chr_ioctl = tty_serial_ioctl;
1125: qemu_chr_reset(chr);
1126: return chr;
1127: }
1128: #else /* ! __linux__ && ! __sun__ */
1129: static CharDriverState *qemu_chr_open_pty(void)
1130: {
1131: return NULL;
1132: }
1133: #endif /* __linux__ || __sun__ */
1134:
1135: #if defined(__linux__)
1136: typedef struct {
1137: int fd;
1138: int mode;
1139: } ParallelCharDriver;
1140:
1141: static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1142: {
1143: if (s->mode != mode) {
1144: int m = mode;
1145: if (ioctl(s->fd, PPSETMODE, &m) < 0)
1146: return 0;
1147: s->mode = mode;
1148: }
1149: return 1;
1150: }
1151:
1152: static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1153: {
1154: ParallelCharDriver *drv = chr->opaque;
1155: int fd = drv->fd;
1156: uint8_t b;
1157:
1158: switch(cmd) {
1159: case CHR_IOCTL_PP_READ_DATA:
1160: if (ioctl(fd, PPRDATA, &b) < 0)
1161: return -ENOTSUP;
1162: *(uint8_t *)arg = b;
1163: break;
1164: case CHR_IOCTL_PP_WRITE_DATA:
1165: b = *(uint8_t *)arg;
1166: if (ioctl(fd, PPWDATA, &b) < 0)
1167: return -ENOTSUP;
1168: break;
1169: case CHR_IOCTL_PP_READ_CONTROL:
1170: if (ioctl(fd, PPRCONTROL, &b) < 0)
1171: return -ENOTSUP;
1172: /* Linux gives only the lowest bits, and no way to know data
1173: direction! For better compatibility set the fixed upper
1174: bits. */
1175: *(uint8_t *)arg = b | 0xc0;
1176: break;
1177: case CHR_IOCTL_PP_WRITE_CONTROL:
1178: b = *(uint8_t *)arg;
1179: if (ioctl(fd, PPWCONTROL, &b) < 0)
1180: return -ENOTSUP;
1181: break;
1182: case CHR_IOCTL_PP_READ_STATUS:
1183: if (ioctl(fd, PPRSTATUS, &b) < 0)
1184: return -ENOTSUP;
1185: *(uint8_t *)arg = b;
1186: break;
1187: case CHR_IOCTL_PP_DATA_DIR:
1188: if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1189: return -ENOTSUP;
1190: break;
1191: case CHR_IOCTL_PP_EPP_READ_ADDR:
1192: if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1193: struct ParallelIOArg *parg = arg;
1194: int n = read(fd, parg->buffer, parg->count);
1195: if (n != parg->count) {
1196: return -EIO;
1197: }
1198: }
1199: break;
1200: case CHR_IOCTL_PP_EPP_READ:
1201: if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1202: struct ParallelIOArg *parg = arg;
1203: int n = read(fd, parg->buffer, parg->count);
1204: if (n != parg->count) {
1205: return -EIO;
1206: }
1207: }
1208: break;
1209: case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1210: if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1211: struct ParallelIOArg *parg = arg;
1212: int n = write(fd, parg->buffer, parg->count);
1213: if (n != parg->count) {
1214: return -EIO;
1215: }
1216: }
1217: break;
1218: case CHR_IOCTL_PP_EPP_WRITE:
1219: if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1220: struct ParallelIOArg *parg = arg;
1221: int n = write(fd, parg->buffer, parg->count);
1222: if (n != parg->count) {
1223: return -EIO;
1224: }
1225: }
1226: break;
1227: default:
1228: return -ENOTSUP;
1229: }
1230: return 0;
1231: }
1232:
1233: static void pp_close(CharDriverState *chr)
1234: {
1235: ParallelCharDriver *drv = chr->opaque;
1236: int fd = drv->fd;
1237:
1238: pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1239: ioctl(fd, PPRELEASE);
1240: close(fd);
1241: qemu_free(drv);
1242: }
1243:
1244: static CharDriverState *qemu_chr_open_pp(const char *filename)
1245: {
1246: CharDriverState *chr;
1247: ParallelCharDriver *drv;
1248: int fd;
1249:
1250: TFR(fd = open(filename, O_RDWR));
1251: if (fd < 0)
1252: return NULL;
1253:
1254: if (ioctl(fd, PPCLAIM) < 0) {
1255: close(fd);
1256: return NULL;
1257: }
1258:
1259: drv = qemu_mallocz(sizeof(ParallelCharDriver));
1260: drv->fd = fd;
1261: drv->mode = IEEE1284_MODE_COMPAT;
1262:
1263: chr = qemu_mallocz(sizeof(CharDriverState));
1264: chr->chr_write = null_chr_write;
1265: chr->chr_ioctl = pp_ioctl;
1266: chr->chr_close = pp_close;
1267: chr->opaque = drv;
1268:
1269: qemu_chr_reset(chr);
1270:
1271: return chr;
1272: }
1273: #endif /* __linux__ */
1274:
1275: #if defined(__FreeBSD__)
1276: static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1277: {
1278: int fd = (int)chr->opaque;
1279: uint8_t b;
1280:
1281: switch(cmd) {
1282: case CHR_IOCTL_PP_READ_DATA:
1283: if (ioctl(fd, PPIGDATA, &b) < 0)
1284: return -ENOTSUP;
1285: *(uint8_t *)arg = b;
1286: break;
1287: case CHR_IOCTL_PP_WRITE_DATA:
1288: b = *(uint8_t *)arg;
1289: if (ioctl(fd, PPISDATA, &b) < 0)
1290: return -ENOTSUP;
1291: break;
1292: case CHR_IOCTL_PP_READ_CONTROL:
1293: if (ioctl(fd, PPIGCTRL, &b) < 0)
1294: return -ENOTSUP;
1295: *(uint8_t *)arg = b;
1296: break;
1297: case CHR_IOCTL_PP_WRITE_CONTROL:
1298: b = *(uint8_t *)arg;
1299: if (ioctl(fd, PPISCTRL, &b) < 0)
1300: return -ENOTSUP;
1301: break;
1302: case CHR_IOCTL_PP_READ_STATUS:
1303: if (ioctl(fd, PPIGSTATUS, &b) < 0)
1304: return -ENOTSUP;
1305: *(uint8_t *)arg = b;
1306: break;
1307: default:
1308: return -ENOTSUP;
1309: }
1310: return 0;
1311: }
1312:
1313: static CharDriverState *qemu_chr_open_pp(const char *filename)
1314: {
1315: CharDriverState *chr;
1316: int fd;
1317:
1318: fd = open(filename, O_RDWR);
1319: if (fd < 0)
1320: return NULL;
1321:
1322: chr = qemu_mallocz(sizeof(CharDriverState));
1323: chr->opaque = (void *)fd;
1324: chr->chr_write = null_chr_write;
1325: chr->chr_ioctl = pp_ioctl;
1326: return chr;
1327: }
1328: #endif
1329:
1330: #else /* _WIN32 */
1331:
1332: typedef struct {
1333: int max_size;
1334: HANDLE hcom, hrecv, hsend;
1335: OVERLAPPED orecv, osend;
1336: BOOL fpipe;
1337: DWORD len;
1338: } WinCharState;
1339:
1340: #define NSENDBUF 2048
1341: #define NRECVBUF 2048
1342: #define MAXCONNECT 1
1343: #define NTIMEOUT 5000
1344:
1345: static int win_chr_poll(void *opaque);
1346: static int win_chr_pipe_poll(void *opaque);
1347:
1348: static void win_chr_close(CharDriverState *chr)
1349: {
1350: WinCharState *s = chr->opaque;
1351:
1352: if (s->hsend) {
1353: CloseHandle(s->hsend);
1354: s->hsend = NULL;
1355: }
1356: if (s->hrecv) {
1357: CloseHandle(s->hrecv);
1358: s->hrecv = NULL;
1359: }
1360: if (s->hcom) {
1361: CloseHandle(s->hcom);
1362: s->hcom = NULL;
1363: }
1364: if (s->fpipe)
1365: qemu_del_polling_cb(win_chr_pipe_poll, chr);
1366: else
1367: qemu_del_polling_cb(win_chr_poll, chr);
1368: }
1369:
1370: static int win_chr_init(CharDriverState *chr, const char *filename)
1371: {
1372: WinCharState *s = chr->opaque;
1373: COMMCONFIG comcfg;
1374: COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1375: COMSTAT comstat;
1376: DWORD size;
1377: DWORD err;
1378:
1379: s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1380: if (!s->hsend) {
1381: fprintf(stderr, "Failed CreateEvent\n");
1382: goto fail;
1383: }
1384: s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1385: if (!s->hrecv) {
1386: fprintf(stderr, "Failed CreateEvent\n");
1387: goto fail;
1388: }
1389:
1390: s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1391: OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1392: if (s->hcom == INVALID_HANDLE_VALUE) {
1393: fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1394: s->hcom = NULL;
1395: goto fail;
1396: }
1397:
1398: if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1399: fprintf(stderr, "Failed SetupComm\n");
1400: goto fail;
1401: }
1402:
1403: ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1404: size = sizeof(COMMCONFIG);
1405: GetDefaultCommConfig(filename, &comcfg, &size);
1406: comcfg.dcb.DCBlength = sizeof(DCB);
1407: CommConfigDialog(filename, NULL, &comcfg);
1408:
1409: if (!SetCommState(s->hcom, &comcfg.dcb)) {
1410: fprintf(stderr, "Failed SetCommState\n");
1411: goto fail;
1412: }
1413:
1414: if (!SetCommMask(s->hcom, EV_ERR)) {
1415: fprintf(stderr, "Failed SetCommMask\n");
1416: goto fail;
1417: }
1418:
1419: cto.ReadIntervalTimeout = MAXDWORD;
1420: if (!SetCommTimeouts(s->hcom, &cto)) {
1421: fprintf(stderr, "Failed SetCommTimeouts\n");
1422: goto fail;
1423: }
1424:
1425: if (!ClearCommError(s->hcom, &err, &comstat)) {
1426: fprintf(stderr, "Failed ClearCommError\n");
1427: goto fail;
1428: }
1429: qemu_add_polling_cb(win_chr_poll, chr);
1430: return 0;
1431:
1432: fail:
1433: win_chr_close(chr);
1434: return -1;
1435: }
1436:
1437: static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1438: {
1439: WinCharState *s = chr->opaque;
1440: DWORD len, ret, size, err;
1441:
1442: len = len1;
1443: ZeroMemory(&s->osend, sizeof(s->osend));
1444: s->osend.hEvent = s->hsend;
1445: while (len > 0) {
1446: if (s->hsend)
1447: ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1448: else
1449: ret = WriteFile(s->hcom, buf, len, &size, NULL);
1450: if (!ret) {
1451: err = GetLastError();
1452: if (err == ERROR_IO_PENDING) {
1453: ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1454: if (ret) {
1455: buf += size;
1456: len -= size;
1457: } else {
1458: break;
1459: }
1460: } else {
1461: break;
1462: }
1463: } else {
1464: buf += size;
1465: len -= size;
1466: }
1467: }
1468: return len1 - len;
1469: }
1470:
1471: static int win_chr_read_poll(CharDriverState *chr)
1472: {
1473: WinCharState *s = chr->opaque;
1474:
1475: s->max_size = qemu_chr_can_read(chr);
1476: return s->max_size;
1477: }
1478:
1479: static void win_chr_readfile(CharDriverState *chr)
1480: {
1481: WinCharState *s = chr->opaque;
1482: int ret, err;
1483: uint8_t buf[1024];
1484: DWORD size;
1485:
1486: ZeroMemory(&s->orecv, sizeof(s->orecv));
1487: s->orecv.hEvent = s->hrecv;
1488: ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1489: if (!ret) {
1490: err = GetLastError();
1491: if (err == ERROR_IO_PENDING) {
1492: ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1493: }
1494: }
1495:
1496: if (size > 0) {
1497: qemu_chr_read(chr, buf, size);
1498: }
1499: }
1500:
1501: static void win_chr_read(CharDriverState *chr)
1502: {
1503: WinCharState *s = chr->opaque;
1504:
1505: if (s->len > s->max_size)
1506: s->len = s->max_size;
1507: if (s->len == 0)
1508: return;
1509:
1510: win_chr_readfile(chr);
1511: }
1512:
1513: static int win_chr_poll(void *opaque)
1514: {
1515: CharDriverState *chr = opaque;
1516: WinCharState *s = chr->opaque;
1517: COMSTAT status;
1518: DWORD comerr;
1519:
1520: ClearCommError(s->hcom, &comerr, &status);
1521: if (status.cbInQue > 0) {
1522: s->len = status.cbInQue;
1523: win_chr_read_poll(chr);
1524: win_chr_read(chr);
1525: return 1;
1526: }
1527: return 0;
1528: }
1529:
1530: static CharDriverState *qemu_chr_open_win(const char *filename)
1531: {
1532: CharDriverState *chr;
1533: WinCharState *s;
1534:
1535: chr = qemu_mallocz(sizeof(CharDriverState));
1536: s = qemu_mallocz(sizeof(WinCharState));
1537: chr->opaque = s;
1538: chr->chr_write = win_chr_write;
1539: chr->chr_close = win_chr_close;
1540:
1541: if (win_chr_init(chr, filename) < 0) {
1542: free(s);
1543: free(chr);
1544: return NULL;
1545: }
1546: qemu_chr_reset(chr);
1547: return chr;
1548: }
1549:
1550: static int win_chr_pipe_poll(void *opaque)
1551: {
1552: CharDriverState *chr = opaque;
1553: WinCharState *s = chr->opaque;
1554: DWORD size;
1555:
1556: PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1557: if (size > 0) {
1558: s->len = size;
1559: win_chr_read_poll(chr);
1560: win_chr_read(chr);
1561: return 1;
1562: }
1563: return 0;
1564: }
1565:
1566: static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1567: {
1568: WinCharState *s = chr->opaque;
1569: OVERLAPPED ov;
1570: int ret;
1571: DWORD size;
1572: char openname[256];
1573:
1574: s->fpipe = TRUE;
1575:
1576: s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1577: if (!s->hsend) {
1578: fprintf(stderr, "Failed CreateEvent\n");
1579: goto fail;
1580: }
1581: s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1582: if (!s->hrecv) {
1583: fprintf(stderr, "Failed CreateEvent\n");
1584: goto fail;
1585: }
1586:
1587: snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1588: s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1589: PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1590: PIPE_WAIT,
1591: MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1592: if (s->hcom == INVALID_HANDLE_VALUE) {
1593: fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1594: s->hcom = NULL;
1595: goto fail;
1596: }
1597:
1598: ZeroMemory(&ov, sizeof(ov));
1599: ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1600: ret = ConnectNamedPipe(s->hcom, &ov);
1601: if (ret) {
1602: fprintf(stderr, "Failed ConnectNamedPipe\n");
1603: goto fail;
1604: }
1605:
1606: ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1607: if (!ret) {
1608: fprintf(stderr, "Failed GetOverlappedResult\n");
1609: if (ov.hEvent) {
1610: CloseHandle(ov.hEvent);
1611: ov.hEvent = NULL;
1612: }
1613: goto fail;
1614: }
1615:
1616: if (ov.hEvent) {
1617: CloseHandle(ov.hEvent);
1618: ov.hEvent = NULL;
1619: }
1620: qemu_add_polling_cb(win_chr_pipe_poll, chr);
1621: return 0;
1622:
1623: fail:
1624: win_chr_close(chr);
1625: return -1;
1626: }
1627:
1628:
1629: static CharDriverState *qemu_chr_open_win_pipe(const char *filename)
1630: {
1631: CharDriverState *chr;
1632: WinCharState *s;
1633:
1634: chr = qemu_mallocz(sizeof(CharDriverState));
1635: s = qemu_mallocz(sizeof(WinCharState));
1636: chr->opaque = s;
1637: chr->chr_write = win_chr_write;
1638: chr->chr_close = win_chr_close;
1639:
1640: if (win_chr_pipe_init(chr, filename) < 0) {
1641: free(s);
1642: free(chr);
1643: return NULL;
1644: }
1645: qemu_chr_reset(chr);
1646: return chr;
1647: }
1648:
1649: static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1650: {
1651: CharDriverState *chr;
1652: WinCharState *s;
1653:
1654: chr = qemu_mallocz(sizeof(CharDriverState));
1655: s = qemu_mallocz(sizeof(WinCharState));
1656: s->hcom = fd_out;
1657: chr->opaque = s;
1658: chr->chr_write = win_chr_write;
1659: qemu_chr_reset(chr);
1660: return chr;
1661: }
1662:
1663: static CharDriverState *qemu_chr_open_win_con(const char *filename)
1664: {
1665: return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1666: }
1667:
1668: static CharDriverState *qemu_chr_open_win_file_out(const char *file_out)
1669: {
1670: HANDLE fd_out;
1671:
1672: fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1673: OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1674: if (fd_out == INVALID_HANDLE_VALUE)
1675: return NULL;
1676:
1677: return qemu_chr_open_win_file(fd_out);
1678: }
1679: #endif /* !_WIN32 */
1680:
1681: /***********************************************************/
1682: /* UDP Net console */
1683:
1684: typedef struct {
1685: int fd;
1686: struct sockaddr_in daddr;
1687: uint8_t buf[1024];
1688: int bufcnt;
1689: int bufptr;
1690: int max_size;
1691: } NetCharDriver;
1692:
1693: static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1694: {
1695: NetCharDriver *s = chr->opaque;
1696:
1697: return sendto(s->fd, buf, len, 0,
1698: (struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in));
1699: }
1700:
1701: static int udp_chr_read_poll(void *opaque)
1702: {
1703: CharDriverState *chr = opaque;
1704: NetCharDriver *s = chr->opaque;
1705:
1706: s->max_size = qemu_chr_can_read(chr);
1707:
1708: /* If there were any stray characters in the queue process them
1709: * first
1710: */
1711: while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1712: qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1713: s->bufptr++;
1714: s->max_size = qemu_chr_can_read(chr);
1715: }
1716: return s->max_size;
1717: }
1718:
1719: static void udp_chr_read(void *opaque)
1720: {
1721: CharDriverState *chr = opaque;
1722: NetCharDriver *s = chr->opaque;
1723:
1724: if (s->max_size == 0)
1725: return;
1726: s->bufcnt = recv(s->fd, s->buf, sizeof(s->buf), 0);
1727: s->bufptr = s->bufcnt;
1728: if (s->bufcnt <= 0)
1729: return;
1730:
1731: s->bufptr = 0;
1732: while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1733: qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1734: s->bufptr++;
1735: s->max_size = qemu_chr_can_read(chr);
1736: }
1737: }
1738:
1739: static void udp_chr_update_read_handler(CharDriverState *chr)
1740: {
1741: NetCharDriver *s = chr->opaque;
1742:
1743: if (s->fd >= 0) {
1744: qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
1745: udp_chr_read, NULL, chr);
1746: }
1747: }
1748:
1749: static CharDriverState *qemu_chr_open_udp(const char *def)
1750: {
1751: CharDriverState *chr = NULL;
1752: NetCharDriver *s = NULL;
1753: int fd = -1;
1754: struct sockaddr_in saddr;
1755:
1756: chr = qemu_mallocz(sizeof(CharDriverState));
1757: s = qemu_mallocz(sizeof(NetCharDriver));
1758:
1759: fd = socket(PF_INET, SOCK_DGRAM, 0);
1760: if (fd < 0) {
1761: perror("socket(PF_INET, SOCK_DGRAM)");
1762: goto return_err;
1763: }
1764:
1765: if (parse_host_src_port(&s->daddr, &saddr, def) < 0) {
1766: printf("Could not parse: %s\n", def);
1767: goto return_err;
1768: }
1769:
1770: if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0)
1771: {
1772: perror("bind");
1773: goto return_err;
1774: }
1775:
1776: s->fd = fd;
1777: s->bufcnt = 0;
1778: s->bufptr = 0;
1779: chr->opaque = s;
1780: chr->chr_write = udp_chr_write;
1781: chr->chr_update_read_handler = udp_chr_update_read_handler;
1782: return chr;
1783:
1784: return_err:
1785: if (chr)
1786: free(chr);
1787: if (s)
1788: free(s);
1789: if (fd >= 0)
1790: closesocket(fd);
1791: return NULL;
1792: }
1793:
1794: /***********************************************************/
1795: /* TCP Net console */
1796:
1797: typedef struct {
1798: int fd, listen_fd;
1799: int connected;
1800: int max_size;
1801: int do_telnetopt;
1802: int do_nodelay;
1803: int is_unix;
1804: } TCPCharDriver;
1805:
1806: static void tcp_chr_accept(void *opaque);
1807:
1808: static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1809: {
1810: TCPCharDriver *s = chr->opaque;
1811: if (s->connected) {
1812: return send_all(s->fd, buf, len);
1813: } else {
1814: /* XXX: indicate an error ? */
1815: return len;
1816: }
1817: }
1818:
1819: static int tcp_chr_read_poll(void *opaque)
1820: {
1821: CharDriverState *chr = opaque;
1822: TCPCharDriver *s = chr->opaque;
1823: if (!s->connected)
1824: return 0;
1825: s->max_size = qemu_chr_can_read(chr);
1826: return s->max_size;
1827: }
1828:
1829: #define IAC 255
1830: #define IAC_BREAK 243
1831: static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
1832: TCPCharDriver *s,
1833: uint8_t *buf, int *size)
1834: {
1835: /* Handle any telnet client's basic IAC options to satisfy char by
1836: * char mode with no echo. All IAC options will be removed from
1837: * the buf and the do_telnetopt variable will be used to track the
1838: * state of the width of the IAC information.
1839: *
1840: * IAC commands come in sets of 3 bytes with the exception of the
1841: * "IAC BREAK" command and the double IAC.
1842: */
1843:
1844: int i;
1845: int j = 0;
1846:
1847: for (i = 0; i < *size; i++) {
1848: if (s->do_telnetopt > 1) {
1849: if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
1850: /* Double IAC means send an IAC */
1851: if (j != i)
1852: buf[j] = buf[i];
1853: j++;
1854: s->do_telnetopt = 1;
1855: } else {
1856: if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
1857: /* Handle IAC break commands by sending a serial break */
1858: qemu_chr_event(chr, CHR_EVENT_BREAK);
1859: s->do_telnetopt++;
1860: }
1861: s->do_telnetopt++;
1862: }
1863: if (s->do_telnetopt >= 4) {
1864: s->do_telnetopt = 1;
1865: }
1866: } else {
1867: if ((unsigned char)buf[i] == IAC) {
1868: s->do_telnetopt = 2;
1869: } else {
1870: if (j != i)
1871: buf[j] = buf[i];
1872: j++;
1873: }
1874: }
1875: }
1876: *size = j;
1877: }
1878:
1879: static void tcp_chr_read(void *opaque)
1880: {
1881: CharDriverState *chr = opaque;
1882: TCPCharDriver *s = chr->opaque;
1883: uint8_t buf[1024];
1884: int len, size;
1885:
1886: if (!s->connected || s->max_size <= 0)
1887: return;
1888: len = sizeof(buf);
1889: if (len > s->max_size)
1890: len = s->max_size;
1891: size = recv(s->fd, buf, len, 0);
1892: if (size == 0) {
1893: /* connection closed */
1894: s->connected = 0;
1895: if (s->listen_fd >= 0) {
1896: qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
1897: }
1898: qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1899: closesocket(s->fd);
1900: s->fd = -1;
1901: } else if (size > 0) {
1902: if (s->do_telnetopt)
1903: tcp_chr_process_IAC_bytes(chr, s, buf, &size);
1904: if (size > 0)
1905: qemu_chr_read(chr, buf, size);
1906: }
1907: }
1908:
1909: static void tcp_chr_connect(void *opaque)
1910: {
1911: CharDriverState *chr = opaque;
1912: TCPCharDriver *s = chr->opaque;
1913:
1914: s->connected = 1;
1915: qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
1916: tcp_chr_read, NULL, chr);
1917: qemu_chr_reset(chr);
1918: }
1919:
1920: #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
1921: static void tcp_chr_telnet_init(int fd)
1922: {
1923: char buf[3];
1924: /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
1925: IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
1926: send(fd, (char *)buf, 3, 0);
1927: IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
1928: send(fd, (char *)buf, 3, 0);
1929: IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
1930: send(fd, (char *)buf, 3, 0);
1931: IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
1932: send(fd, (char *)buf, 3, 0);
1933: }
1934:
1935: static void socket_set_nodelay(int fd)
1936: {
1937: int val = 1;
1938: setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
1939: }
1940:
1941: static void tcp_chr_accept(void *opaque)
1942: {
1943: CharDriverState *chr = opaque;
1944: TCPCharDriver *s = chr->opaque;
1945: struct sockaddr_in saddr;
1946: #ifndef _WIN32
1947: struct sockaddr_un uaddr;
1948: #endif
1949: struct sockaddr *addr;
1950: socklen_t len;
1951: int fd;
1952:
1953: for(;;) {
1954: #ifndef _WIN32
1955: if (s->is_unix) {
1956: len = sizeof(uaddr);
1957: addr = (struct sockaddr *)&uaddr;
1958: } else
1959: #endif
1960: {
1961: len = sizeof(saddr);
1962: addr = (struct sockaddr *)&saddr;
1963: }
1964: fd = accept(s->listen_fd, addr, &len);
1965: if (fd < 0 && errno != EINTR) {
1966: return;
1967: } else if (fd >= 0) {
1968: if (s->do_telnetopt)
1969: tcp_chr_telnet_init(fd);
1970: break;
1971: }
1972: }
1973: socket_set_nonblock(fd);
1974: if (s->do_nodelay)
1975: socket_set_nodelay(fd);
1976: s->fd = fd;
1977: qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
1978: tcp_chr_connect(chr);
1979: }
1980:
1981: static void tcp_chr_close(CharDriverState *chr)
1982: {
1983: TCPCharDriver *s = chr->opaque;
1984: if (s->fd >= 0)
1985: closesocket(s->fd);
1986: if (s->listen_fd >= 0)
1987: closesocket(s->listen_fd);
1988: qemu_free(s);
1989: }
1990:
1991: static CharDriverState *qemu_chr_open_tcp(const char *host_str,
1992: int is_telnet,
1993: int is_unix)
1994: {
1995: CharDriverState *chr = NULL;
1996: TCPCharDriver *s = NULL;
1997: int fd = -1, offset = 0;
1998: int is_listen = 0;
1999: int is_waitconnect = 1;
2000: int do_nodelay = 0;
2001: const char *ptr;
2002:
2003: ptr = host_str;
2004: while((ptr = strchr(ptr,','))) {
2005: ptr++;
2006: if (!strncmp(ptr,"server",6)) {
2007: is_listen = 1;
2008: } else if (!strncmp(ptr,"nowait",6)) {
2009: is_waitconnect = 0;
2010: } else if (!strncmp(ptr,"nodelay",6)) {
2011: do_nodelay = 1;
2012: } else if (!strncmp(ptr,"to=",3)) {
2013: /* nothing, inet_listen() parses this one */;
2014: } else if (!strncmp(ptr,"ipv4",4)) {
2015: /* nothing, inet_connect() and inet_listen() parse this one */;
2016: } else if (!strncmp(ptr,"ipv6",4)) {
2017: /* nothing, inet_connect() and inet_listen() parse this one */;
2018: } else {
2019: printf("Unknown option: %s\n", ptr);
2020: goto fail;
2021: }
2022: }
2023: if (!is_listen)
2024: is_waitconnect = 0;
2025:
2026: chr = qemu_mallocz(sizeof(CharDriverState));
2027: s = qemu_mallocz(sizeof(TCPCharDriver));
2028:
2029: if (is_listen) {
2030: chr->filename = qemu_malloc(256);
2031: if (is_unix) {
2032: pstrcpy(chr->filename, 256, "unix:");
2033: } else if (is_telnet) {
2034: pstrcpy(chr->filename, 256, "telnet:");
2035: } else {
2036: pstrcpy(chr->filename, 256, "tcp:");
2037: }
2038: offset = strlen(chr->filename);
2039: }
2040: if (is_unix) {
2041: if (is_listen) {
2042: fd = unix_listen(host_str, chr->filename + offset, 256 - offset);
2043: } else {
2044: fd = unix_connect(host_str);
2045: }
2046: } else {
2047: if (is_listen) {
2048: fd = inet_listen(host_str, chr->filename + offset, 256 - offset,
2049: SOCK_STREAM, 0);
2050: } else {
2051: fd = inet_connect(host_str, SOCK_STREAM);
2052: }
2053: }
2054: if (fd < 0)
2055: goto fail;
2056:
2057: if (!is_waitconnect)
2058: socket_set_nonblock(fd);
2059:
2060: s->connected = 0;
2061: s->fd = -1;
2062: s->listen_fd = -1;
2063: s->is_unix = is_unix;
2064: s->do_nodelay = do_nodelay && !is_unix;
2065:
2066: chr->opaque = s;
2067: chr->chr_write = tcp_chr_write;
2068: chr->chr_close = tcp_chr_close;
2069:
2070: if (is_listen) {
2071: s->listen_fd = fd;
2072: qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2073: if (is_telnet)
2074: s->do_telnetopt = 1;
2075: } else {
2076: s->connected = 1;
2077: s->fd = fd;
2078: socket_set_nodelay(fd);
2079: tcp_chr_connect(chr);
2080: }
2081:
2082: if (is_listen && is_waitconnect) {
2083: printf("QEMU waiting for connection on: %s\n",
2084: chr->filename ? chr->filename : host_str);
2085: tcp_chr_accept(chr);
2086: socket_set_nonblock(s->listen_fd);
2087: }
2088:
2089: return chr;
2090: fail:
2091: if (fd >= 0)
2092: closesocket(fd);
2093: qemu_free(s);
2094: qemu_free(chr);
2095: return NULL;
2096: }
2097:
2098: CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
2099: {
2100: const char *p;
2101: CharDriverState *chr;
2102:
2103: if (!strcmp(filename, "vc")) {
2104: chr = text_console_init(0);
2105: } else
2106: if (strstart(filename, "vc:", &p)) {
2107: chr = text_console_init(p);
2108: } else
2109: if (!strcmp(filename, "null")) {
2110: chr = qemu_chr_open_null();
2111: } else
2112: if (strstart(filename, "tcp:", &p)) {
2113: chr = qemu_chr_open_tcp(p, 0, 0);
2114: } else
2115: if (strstart(filename, "telnet:", &p)) {
2116: chr = qemu_chr_open_tcp(p, 1, 0);
2117: } else
2118: if (strstart(filename, "udp:", &p)) {
2119: chr = qemu_chr_open_udp(p);
2120: } else
2121: if (strstart(filename, "mon:", &p)) {
2122: chr = qemu_chr_open(label, p, NULL);
2123: if (chr) {
2124: chr = qemu_chr_open_mux(chr);
2125: monitor_init(chr, !nographic);
2126: } else {
2127: printf("Unable to open driver: %s\n", p);
2128: }
2129: } else if (!strcmp(filename, "msmouse")) {
2130: chr = qemu_chr_open_msmouse();
2131: } else
2132: #ifndef _WIN32
2133: if (strstart(filename, "unix:", &p)) {
2134: chr = qemu_chr_open_tcp(p, 0, 1);
2135: } else if (strstart(filename, "file:", &p)) {
2136: chr = qemu_chr_open_file_out(p);
2137: } else if (strstart(filename, "pipe:", &p)) {
2138: chr = qemu_chr_open_pipe(p);
2139: } else if (!strcmp(filename, "pty")) {
2140: chr = qemu_chr_open_pty();
2141: } else if (!strcmp(filename, "stdio")) {
2142: chr = qemu_chr_open_stdio();
2143: } else
2144: #if defined(__linux__)
2145: if (strstart(filename, "/dev/parport", NULL)) {
2146: chr = qemu_chr_open_pp(filename);
2147: } else
2148: #elif defined(__FreeBSD__)
2149: if (strstart(filename, "/dev/ppi", NULL)) {
2150: chr = qemu_chr_open_pp(filename);
2151: } else
2152: #endif
2153: #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2154: || defined(__NetBSD__) || defined(__OpenBSD__)
2155: if (strstart(filename, "/dev/", NULL)) {
2156: chr = qemu_chr_open_tty(filename);
2157: } else
2158: #endif
2159: #else /* !_WIN32 */
2160: if (strstart(filename, "COM", NULL)) {
2161: chr = qemu_chr_open_win(filename);
2162: } else
2163: if (strstart(filename, "pipe:", &p)) {
2164: chr = qemu_chr_open_win_pipe(p);
2165: } else
2166: if (strstart(filename, "con:", NULL)) {
2167: chr = qemu_chr_open_win_con(filename);
2168: } else
2169: if (strstart(filename, "file:", &p)) {
2170: chr = qemu_chr_open_win_file_out(p);
2171: } else
2172: #endif
2173: #ifdef CONFIG_BRLAPI
2174: if (!strcmp(filename, "braille")) {
2175: chr = chr_baum_init();
2176: } else
2177: #endif
2178: {
2179: chr = NULL;
2180: }
2181:
2182: if (chr) {
2183: if (!chr->filename)
2184: chr->filename = qemu_strdup(filename);
2185: chr->init = init;
2186: chr->label = qemu_strdup(label);
2187: TAILQ_INSERT_TAIL(&chardevs, chr, next);
2188: }
2189: return chr;
2190: }
2191:
2192: void qemu_chr_close(CharDriverState *chr)
2193: {
2194: TAILQ_REMOVE(&chardevs, chr, next);
2195: if (chr->chr_close)
2196: chr->chr_close(chr);
2197: qemu_free(chr->filename);
2198: qemu_free(chr->label);
2199: qemu_free(chr);
2200: }
2201:
2202: void qemu_chr_info(void)
2203: {
2204: CharDriverState *chr;
2205:
2206: TAILQ_FOREACH(chr, &chardevs, next) {
2207: term_printf("%s: filename=%s\n", chr->label, chr->filename);
2208: }
2209: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.