4 * Copyright (c) 2003-2008 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
24 #include "qemu-common.h"
25 #include "monitor/monitor.h"
26 #include "ui/console.h"
27 #include "sysemu/sysemu.h"
28 #include "qemu/timer.h"
29 #include "char/char.h"
32 #include "hw/msmouse.h"
33 #include "qmp-commands.h"
43 #include <sys/times.h>
47 #include <sys/ioctl.h>
48 #include <sys/resource.h>
49 #include <sys/socket.h>
50 #include <netinet/in.h>
52 #include <arpa/inet.h>
55 #include <sys/select.h>
58 #if defined(__GLIBC__)
60 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
65 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
66 #include <dev/ppbus/ppi.h>
67 #include <dev/ppbus/ppbconf.h>
68 #elif defined(__DragonFly__)
69 #include <dev/misc/ppi/ppi.h>
70 #include <bus/ppbus/ppbconf.h>
76 #include <linux/ppdev.h>
77 #include <linux/parport.h>
81 #include <sys/ethernet.h>
82 #include <sys/sockio.h>
83 #include <netinet/arp.h>
84 #include <netinet/in.h>
85 #include <netinet/in_systm.h>
86 #include <netinet/ip.h>
87 #include <netinet/ip_icmp.h> // must come after ip.h
88 #include <netinet/udp.h>
89 #include <netinet/tcp.h>
97 #include "qemu/sockets.h"
98 #include "ui/qemu-spice.h"
100 #define READ_BUF_LEN 4096
102 /***********************************************************/
103 /* character device */
105 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
106 QTAILQ_HEAD_INITIALIZER(chardevs);
108 void qemu_chr_be_event(CharDriverState *s, int event)
110 /* Keep track if the char device is open */
112 case CHR_EVENT_OPENED:
115 case CHR_EVENT_CLOSED:
122 s->chr_event(s->handler_opaque, event);
125 static void qemu_chr_fire_open_event(void *opaque)
127 CharDriverState *s = opaque;
128 qemu_chr_be_event(s, CHR_EVENT_OPENED);
129 qemu_free_timer(s->open_timer);
130 s->open_timer = NULL;
133 void qemu_chr_generic_open(CharDriverState *s)
135 if (s->open_timer == NULL) {
136 s->open_timer = qemu_new_timer_ms(rt_clock,
137 qemu_chr_fire_open_event, s);
138 qemu_mod_timer(s->open_timer, qemu_get_clock_ms(rt_clock) - 1);
142 int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
144 return s->chr_write(s, buf, len);
147 int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
151 return s->chr_ioctl(s, cmd, arg);
154 int qemu_chr_be_can_write(CharDriverState *s)
156 if (!s->chr_can_read)
158 return s->chr_can_read(s->handler_opaque);
161 void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
164 s->chr_read(s->handler_opaque, buf, len);
168 int qemu_chr_fe_get_msgfd(CharDriverState *s)
170 return s->get_msgfd ? s->get_msgfd(s) : -1;
173 int qemu_chr_add_client(CharDriverState *s, int fd)
175 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
178 void qemu_chr_accept_input(CharDriverState *s)
180 if (s->chr_accept_input)
181 s->chr_accept_input(s);
185 void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
187 char buf[READ_BUF_LEN];
190 vsnprintf(buf, sizeof(buf), fmt, ap);
191 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
195 void qemu_chr_add_handlers(CharDriverState *s,
196 IOCanReadHandler *fd_can_read,
197 IOReadHandler *fd_read,
198 IOEventHandler *fd_event,
201 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
202 /* chr driver being released. */
203 ++s->avail_connections;
205 s->chr_can_read = fd_can_read;
206 s->chr_read = fd_read;
207 s->chr_event = fd_event;
208 s->handler_opaque = opaque;
209 if (s->chr_update_read_handler)
210 s->chr_update_read_handler(s);
212 /* We're connecting to an already opened device, so let's make sure we
213 also get the open event */
215 qemu_chr_generic_open(s);
219 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
224 static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
226 CharDriverState *chr;
228 chr = g_malloc0(sizeof(CharDriverState));
229 chr->chr_write = null_chr_write;
233 /* MUX driver for serial I/O splitting */
235 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
236 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
238 IOCanReadHandler *chr_can_read[MAX_MUX];
239 IOReadHandler *chr_read[MAX_MUX];
240 IOEventHandler *chr_event[MAX_MUX];
241 void *ext_opaque[MAX_MUX];
242 CharDriverState *drv;
247 /* Intermediate input buffer allows to catch escape sequences even if the
248 currently active device is not accepting any input - but only until it
250 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
255 int64_t timestamps_start;
259 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
261 MuxDriver *d = chr->opaque;
263 if (!d->timestamps) {
264 ret = d->drv->chr_write(d->drv, buf, len);
269 for (i = 0; i < len; i++) {
275 ti = qemu_get_clock_ms(rt_clock);
276 if (d->timestamps_start == -1)
277 d->timestamps_start = ti;
278 ti -= d->timestamps_start;
280 snprintf(buf1, sizeof(buf1),
281 "[%02d:%02d:%02d.%03d] ",
286 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
289 ret += d->drv->chr_write(d->drv, buf+i, 1);
290 if (buf[i] == '\n') {
298 static const char * const mux_help[] = {
299 "% h print this help\n\r",
300 "% x exit emulator\n\r",
301 "% s save disk data back to file (if -snapshot)\n\r",
302 "% t toggle console timestamps\n\r"
303 "% b send break (magic sysrq)\n\r",
304 "% c switch between console and monitor\n\r",
309 int term_escape_char = 0x01; /* ctrl-a is used for escape */
310 static void mux_print_help(CharDriverState *chr)
313 char ebuf[15] = "Escape-Char";
314 char cbuf[50] = "\n\r";
316 if (term_escape_char > 0 && term_escape_char < 26) {
317 snprintf(cbuf, sizeof(cbuf), "\n\r");
318 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
320 snprintf(cbuf, sizeof(cbuf),
321 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
324 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
325 for (i = 0; mux_help[i] != NULL; i++) {
326 for (j=0; mux_help[i][j] != '\0'; j++) {
327 if (mux_help[i][j] == '%')
328 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
330 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
335 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
337 if (d->chr_event[mux_nr])
338 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
341 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
343 if (d->term_got_escape) {
344 d->term_got_escape = 0;
345 if (ch == term_escape_char)
354 const char *term = "QEMU: Terminated\n\r";
355 chr->chr_write(chr,(uint8_t *)term,strlen(term));
363 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
366 /* Switch to the next registered device */
367 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
369 if (d->focus >= d->mux_cnt)
371 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
374 d->timestamps = !d->timestamps;
375 d->timestamps_start = -1;
379 } else if (ch == term_escape_char) {
380 d->term_got_escape = 1;
388 static void mux_chr_accept_input(CharDriverState *chr)
390 MuxDriver *d = chr->opaque;
393 while (d->prod[m] != d->cons[m] &&
394 d->chr_can_read[m] &&
395 d->chr_can_read[m](d->ext_opaque[m])) {
396 d->chr_read[m](d->ext_opaque[m],
397 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
401 static int mux_chr_can_read(void *opaque)
403 CharDriverState *chr = opaque;
404 MuxDriver *d = chr->opaque;
407 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
409 if (d->chr_can_read[m])
410 return d->chr_can_read[m](d->ext_opaque[m]);
414 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
416 CharDriverState *chr = opaque;
417 MuxDriver *d = chr->opaque;
421 mux_chr_accept_input (opaque);
423 for(i = 0; i < size; i++)
424 if (mux_proc_byte(chr, d, buf[i])) {
425 if (d->prod[m] == d->cons[m] &&
426 d->chr_can_read[m] &&
427 d->chr_can_read[m](d->ext_opaque[m]))
428 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
430 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
434 static void mux_chr_event(void *opaque, int event)
436 CharDriverState *chr = opaque;
437 MuxDriver *d = chr->opaque;
440 /* Send the event to all registered listeners */
441 for (i = 0; i < d->mux_cnt; i++)
442 mux_chr_send_event(d, i, event);
445 static void mux_chr_update_read_handler(CharDriverState *chr)
447 MuxDriver *d = chr->opaque;
449 if (d->mux_cnt >= MAX_MUX) {
450 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
453 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
454 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
455 d->chr_read[d->mux_cnt] = chr->chr_read;
456 d->chr_event[d->mux_cnt] = chr->chr_event;
457 /* Fix up the real driver with mux routines */
458 if (d->mux_cnt == 0) {
459 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
462 if (d->focus != -1) {
463 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
465 d->focus = d->mux_cnt;
467 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
470 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
472 CharDriverState *chr;
475 chr = g_malloc0(sizeof(CharDriverState));
476 d = g_malloc0(sizeof(MuxDriver));
481 chr->chr_write = mux_chr_write;
482 chr->chr_update_read_handler = mux_chr_update_read_handler;
483 chr->chr_accept_input = mux_chr_accept_input;
484 /* Frontend guest-open / -close notification is not support with muxes */
485 chr->chr_guest_open = NULL;
486 chr->chr_guest_close = NULL;
488 /* Muxes are always open on creation */
489 qemu_chr_generic_open(chr);
496 int send_all(int fd, const void *buf, int len1)
502 ret = send(fd, buf, len, 0);
504 errno = WSAGetLastError();
505 if (errno != WSAEWOULDBLOCK) {
508 } else if (ret == 0) {
520 int send_all(int fd, const void *_buf, int len1)
523 const uint8_t *buf = _buf;
527 ret = write(fd, buf, len);
529 if (errno != EINTR && errno != EAGAIN)
531 } else if (ret == 0) {
542 #define STDIO_MAX_CLIENTS 1
543 static int stdio_nb_clients;
553 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
555 FDCharDriver *s = chr->opaque;
556 return send_all(s->fd_out, buf, len);
559 static int fd_chr_read_poll(void *opaque)
561 CharDriverState *chr = opaque;
562 FDCharDriver *s = chr->opaque;
564 s->max_size = qemu_chr_be_can_write(chr);
568 static void fd_chr_read(void *opaque)
570 CharDriverState *chr = opaque;
571 FDCharDriver *s = chr->opaque;
573 uint8_t buf[READ_BUF_LEN];
576 if (len > s->max_size)
580 size = read(s->fd_in, buf, len);
582 /* FD has been closed. Remove it from the active list. */
583 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
584 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
588 qemu_chr_be_write(chr, buf, size);
592 static void fd_chr_update_read_handler(CharDriverState *chr)
594 FDCharDriver *s = chr->opaque;
597 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
599 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
600 fd_chr_read, NULL, chr);
605 static void fd_chr_close(struct CharDriverState *chr)
607 FDCharDriver *s = chr->opaque;
610 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
612 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
617 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
620 /* open a character device to a unix fd */
621 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
623 CharDriverState *chr;
626 chr = g_malloc0(sizeof(CharDriverState));
627 s = g_malloc0(sizeof(FDCharDriver));
631 chr->chr_write = fd_chr_write;
632 chr->chr_update_read_handler = fd_chr_update_read_handler;
633 chr->chr_close = fd_chr_close;
635 qemu_chr_generic_open(chr);
640 static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
644 TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
645 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
649 return qemu_chr_open_fd(-1, fd_out);
652 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
655 char filename_in[256], filename_out[256];
656 const char *filename = qemu_opt_get(opts, "path");
658 if (filename == NULL) {
659 fprintf(stderr, "chardev: pipe: no filename given\n");
663 snprintf(filename_in, 256, "%s.in", filename);
664 snprintf(filename_out, 256, "%s.out", filename);
665 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
666 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
667 if (fd_in < 0 || fd_out < 0) {
672 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
677 return qemu_chr_open_fd(fd_in, fd_out);
681 /* for STDIO, we handle the case where several clients use it
684 #define TERM_FIFO_MAX_SIZE 1
686 static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
687 static int term_fifo_size;
689 static int stdio_read_poll(void *opaque)
691 CharDriverState *chr = opaque;
693 /* try to flush the queue if needed */
694 if (term_fifo_size != 0 && qemu_chr_be_can_write(chr) > 0) {
695 qemu_chr_be_write(chr, term_fifo, 1);
698 /* see if we can absorb more chars */
699 if (term_fifo_size == 0)
705 static void stdio_read(void *opaque)
709 CharDriverState *chr = opaque;
711 size = read(0, buf, 1);
713 /* stdin has been closed. Remove it from the active list. */
714 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
715 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
719 if (qemu_chr_be_can_write(chr) > 0) {
720 qemu_chr_be_write(chr, buf, 1);
721 } else if (term_fifo_size == 0) {
722 term_fifo[term_fifo_size++] = buf[0];
727 /* init terminal so that we can grab keys */
728 static struct termios oldtty;
729 static int old_fd0_flags;
730 static bool stdio_allow_signal;
732 static void term_exit(void)
734 tcsetattr (0, TCSANOW, &oldtty);
735 fcntl(0, F_SETFL, old_fd0_flags);
738 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
744 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
745 |INLCR|IGNCR|ICRNL|IXON);
746 tty.c_oflag |= OPOST;
747 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
748 tty.c_cflag &= ~(CSIZE|PARENB);
753 /* if graphical mode, we allow Ctrl-C handling */
754 if (!stdio_allow_signal)
755 tty.c_lflag &= ~ISIG;
757 tcsetattr (0, TCSANOW, &tty);
760 static void qemu_chr_close_stdio(struct CharDriverState *chr)
764 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
768 static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
770 CharDriverState *chr;
772 if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
775 if (is_daemonized()) {
776 error_report("cannot use stdio with -daemonize");
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);
786 chr = qemu_chr_open_fd(0, 1);
787 chr->chr_close = qemu_chr_close_stdio;
788 chr->chr_set_echo = qemu_chr_set_echo_stdio;
789 qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
791 stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
792 display_type != DT_NOGRAPHIC);
793 qemu_chr_fe_set_echo(chr, false);
799 /* Once Solaris has openpty(), this is going to be removed. */
800 static int openpty(int *amaster, int *aslave, char *name,
801 struct termios *termp, struct winsize *winp)
804 int mfd = -1, sfd = -1;
806 *amaster = *aslave = -1;
808 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
812 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
815 if ((slave = ptsname(mfd)) == NULL)
818 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
821 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
822 (termp != NULL && tcgetattr(sfd, termp) < 0))
830 ioctl(sfd, TIOCSWINSZ, winp);
841 static void cfmakeraw (struct termios *termios_p)
843 termios_p->c_iflag &=
844 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
845 termios_p->c_oflag &= ~OPOST;
846 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
847 termios_p->c_cflag &= ~(CSIZE|PARENB);
848 termios_p->c_cflag |= CS8;
850 termios_p->c_cc[VMIN] = 0;
851 termios_p->c_cc[VTIME] = 0;
855 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
856 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
857 || defined(__GLIBC__)
859 #define HAVE_CHARDEV_TTY 1
869 static void pty_chr_update_read_handler(CharDriverState *chr);
870 static void pty_chr_state(CharDriverState *chr, int connected);
872 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
874 PtyCharDriver *s = chr->opaque;
877 /* guest sends data, check for (re-)connect */
878 pty_chr_update_read_handler(chr);
881 return send_all(s->fd, buf, len);
884 static int pty_chr_read_poll(void *opaque)
886 CharDriverState *chr = opaque;
887 PtyCharDriver *s = chr->opaque;
889 s->read_bytes = qemu_chr_be_can_write(chr);
890 return s->read_bytes;
893 static void pty_chr_read(void *opaque)
895 CharDriverState *chr = opaque;
896 PtyCharDriver *s = chr->opaque;
898 uint8_t buf[READ_BUF_LEN];
901 if (len > s->read_bytes)
905 size = read(s->fd, buf, len);
906 if ((size == -1 && errno == EIO) ||
908 pty_chr_state(chr, 0);
912 pty_chr_state(chr, 1);
913 qemu_chr_be_write(chr, buf, size);
917 static void pty_chr_update_read_handler(CharDriverState *chr)
919 PtyCharDriver *s = chr->opaque;
921 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
922 pty_chr_read, NULL, chr);
925 * Short timeout here: just need wait long enougth that qemu makes
926 * it through the poll loop once. When reconnected we want a
927 * short timeout so we notice it almost instantly. Otherwise
928 * read() gives us -EIO instantly, making pty_chr_state() reset the
929 * timeout to the normal (much longer) poll interval before the
932 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
935 static void pty_chr_state(CharDriverState *chr, int connected)
937 PtyCharDriver *s = chr->opaque;
940 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
943 /* (re-)connect poll interval for idle guests: once per second.
944 * We check more frequently in case the guests sends data to
945 * the virtual device linked to our pty. */
946 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
949 qemu_chr_generic_open(chr);
954 static void pty_chr_timer(void *opaque)
956 struct CharDriverState *chr = opaque;
957 PtyCharDriver *s = chr->opaque;
962 /* If we arrive here without polling being cleared due
963 * read returning -EIO, then we are (re-)connected */
964 pty_chr_state(chr, 1);
969 pty_chr_update_read_handler(chr);
972 static void pty_chr_close(struct CharDriverState *chr)
974 PtyCharDriver *s = chr->opaque;
976 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
978 qemu_del_timer(s->timer);
979 qemu_free_timer(s->timer);
981 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
984 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
986 CharDriverState *chr;
990 int master_fd, slave_fd, len;
991 #if defined(__OpenBSD__) || defined(__DragonFly__)
992 char pty_name[PATH_MAX];
993 #define q_ptsname(x) pty_name
995 char *pty_name = NULL;
996 #define q_ptsname(x) ptsname(x)
999 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1003 /* Set raw attributes on the pty. */
1004 tcgetattr(slave_fd, &tty);
1006 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1009 chr = g_malloc0(sizeof(CharDriverState));
1011 len = strlen(q_ptsname(master_fd)) + 5;
1012 chr->filename = g_malloc(len);
1013 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1014 qemu_opt_set(opts, "path", q_ptsname(master_fd));
1016 label = qemu_opts_id(opts);
1017 fprintf(stderr, "char device redirected to %s%s%s%s\n",
1018 q_ptsname(master_fd),
1019 label ? " (label " : "",
1023 s = g_malloc0(sizeof(PtyCharDriver));
1025 chr->chr_write = pty_chr_write;
1026 chr->chr_update_read_handler = pty_chr_update_read_handler;
1027 chr->chr_close = pty_chr_close;
1030 s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
1035 static void tty_serial_init(int fd, int speed,
1036 int parity, int data_bits, int stop_bits)
1042 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1043 speed, parity, data_bits, stop_bits);
1045 tcgetattr (fd, &tty);
1047 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1048 speed = speed * 10 / 11;
1065 /* Non-Posix values follow. They may be unsupported on some systems. */
1067 check_speed(115200);
1069 check_speed(230400);
1072 check_speed(460800);
1075 check_speed(500000);
1078 check_speed(576000);
1081 check_speed(921600);
1084 check_speed(1000000);
1087 check_speed(1152000);
1090 check_speed(1500000);
1093 check_speed(2000000);
1096 check_speed(2500000);
1099 check_speed(3000000);
1102 check_speed(3500000);
1105 check_speed(4000000);
1110 cfsetispeed(&tty, spd);
1111 cfsetospeed(&tty, spd);
1113 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1114 |INLCR|IGNCR|ICRNL|IXON);
1115 tty.c_oflag |= OPOST;
1116 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1117 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1138 tty.c_cflag |= PARENB;
1141 tty.c_cflag |= PARENB | PARODD;
1145 tty.c_cflag |= CSTOPB;
1147 tcsetattr (fd, TCSANOW, &tty);
1150 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1152 FDCharDriver *s = chr->opaque;
1155 case CHR_IOCTL_SERIAL_SET_PARAMS:
1157 QEMUSerialSetParams *ssp = arg;
1158 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1159 ssp->data_bits, ssp->stop_bits);
1162 case CHR_IOCTL_SERIAL_SET_BREAK:
1164 int enable = *(int *)arg;
1166 tcsendbreak(s->fd_in, 1);
1169 case CHR_IOCTL_SERIAL_GET_TIOCM:
1172 int *targ = (int *)arg;
1173 ioctl(s->fd_in, TIOCMGET, &sarg);
1175 if (sarg & TIOCM_CTS)
1176 *targ |= CHR_TIOCM_CTS;
1177 if (sarg & TIOCM_CAR)
1178 *targ |= CHR_TIOCM_CAR;
1179 if (sarg & TIOCM_DSR)
1180 *targ |= CHR_TIOCM_DSR;
1181 if (sarg & TIOCM_RI)
1182 *targ |= CHR_TIOCM_RI;
1183 if (sarg & TIOCM_DTR)
1184 *targ |= CHR_TIOCM_DTR;
1185 if (sarg & TIOCM_RTS)
1186 *targ |= CHR_TIOCM_RTS;
1189 case CHR_IOCTL_SERIAL_SET_TIOCM:
1191 int sarg = *(int *)arg;
1193 ioctl(s->fd_in, TIOCMGET, &targ);
1194 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1195 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1196 if (sarg & CHR_TIOCM_CTS)
1198 if (sarg & CHR_TIOCM_CAR)
1200 if (sarg & CHR_TIOCM_DSR)
1202 if (sarg & CHR_TIOCM_RI)
1204 if (sarg & CHR_TIOCM_DTR)
1206 if (sarg & CHR_TIOCM_RTS)
1208 ioctl(s->fd_in, TIOCMSET, &targ);
1217 static void qemu_chr_close_tty(CharDriverState *chr)
1219 FDCharDriver *s = chr->opaque;
1233 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1235 CharDriverState *chr;
1237 tty_serial_init(fd, 115200, 'N', 8, 1);
1238 chr = qemu_chr_open_fd(fd, fd);
1239 chr->chr_ioctl = tty_serial_ioctl;
1240 chr->chr_close = qemu_chr_close_tty;
1244 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1246 const char *filename = qemu_opt_get(opts, "path");
1249 TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
1253 return qemu_chr_open_tty_fd(fd);
1255 #endif /* __linux__ || __sun__ */
1257 #if defined(__linux__)
1259 #define HAVE_CHARDEV_PARPORT 1
1264 } ParallelCharDriver;
1266 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1268 if (s->mode != mode) {
1270 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1277 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1279 ParallelCharDriver *drv = chr->opaque;
1284 case CHR_IOCTL_PP_READ_DATA:
1285 if (ioctl(fd, PPRDATA, &b) < 0)
1287 *(uint8_t *)arg = b;
1289 case CHR_IOCTL_PP_WRITE_DATA:
1290 b = *(uint8_t *)arg;
1291 if (ioctl(fd, PPWDATA, &b) < 0)
1294 case CHR_IOCTL_PP_READ_CONTROL:
1295 if (ioctl(fd, PPRCONTROL, &b) < 0)
1297 /* Linux gives only the lowest bits, and no way to know data
1298 direction! For better compatibility set the fixed upper
1300 *(uint8_t *)arg = b | 0xc0;
1302 case CHR_IOCTL_PP_WRITE_CONTROL:
1303 b = *(uint8_t *)arg;
1304 if (ioctl(fd, PPWCONTROL, &b) < 0)
1307 case CHR_IOCTL_PP_READ_STATUS:
1308 if (ioctl(fd, PPRSTATUS, &b) < 0)
1310 *(uint8_t *)arg = b;
1312 case CHR_IOCTL_PP_DATA_DIR:
1313 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1316 case CHR_IOCTL_PP_EPP_READ_ADDR:
1317 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1318 struct ParallelIOArg *parg = arg;
1319 int n = read(fd, parg->buffer, parg->count);
1320 if (n != parg->count) {
1325 case CHR_IOCTL_PP_EPP_READ:
1326 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1327 struct ParallelIOArg *parg = arg;
1328 int n = read(fd, parg->buffer, parg->count);
1329 if (n != parg->count) {
1334 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1335 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1336 struct ParallelIOArg *parg = arg;
1337 int n = write(fd, parg->buffer, parg->count);
1338 if (n != parg->count) {
1343 case CHR_IOCTL_PP_EPP_WRITE:
1344 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1345 struct ParallelIOArg *parg = arg;
1346 int n = write(fd, parg->buffer, parg->count);
1347 if (n != parg->count) {
1358 static void pp_close(CharDriverState *chr)
1360 ParallelCharDriver *drv = chr->opaque;
1363 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1364 ioctl(fd, PPRELEASE);
1367 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1370 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1372 CharDriverState *chr;
1373 ParallelCharDriver *drv;
1375 if (ioctl(fd, PPCLAIM) < 0) {
1380 drv = g_malloc0(sizeof(ParallelCharDriver));
1382 drv->mode = IEEE1284_MODE_COMPAT;
1384 chr = g_malloc0(sizeof(CharDriverState));
1385 chr->chr_write = null_chr_write;
1386 chr->chr_ioctl = pp_ioctl;
1387 chr->chr_close = pp_close;
1390 qemu_chr_generic_open(chr);
1394 #endif /* __linux__ */
1396 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1398 #define HAVE_CHARDEV_PARPORT 1
1400 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1402 int fd = (int)(intptr_t)chr->opaque;
1406 case CHR_IOCTL_PP_READ_DATA:
1407 if (ioctl(fd, PPIGDATA, &b) < 0)
1409 *(uint8_t *)arg = b;
1411 case CHR_IOCTL_PP_WRITE_DATA:
1412 b = *(uint8_t *)arg;
1413 if (ioctl(fd, PPISDATA, &b) < 0)
1416 case CHR_IOCTL_PP_READ_CONTROL:
1417 if (ioctl(fd, PPIGCTRL, &b) < 0)
1419 *(uint8_t *)arg = b;
1421 case CHR_IOCTL_PP_WRITE_CONTROL:
1422 b = *(uint8_t *)arg;
1423 if (ioctl(fd, PPISCTRL, &b) < 0)
1426 case CHR_IOCTL_PP_READ_STATUS:
1427 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1429 *(uint8_t *)arg = b;
1437 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1439 CharDriverState *chr;
1441 chr = g_malloc0(sizeof(CharDriverState));
1442 chr->opaque = (void *)(intptr_t)fd;
1443 chr->chr_write = null_chr_write;
1444 chr->chr_ioctl = pp_ioctl;
1451 static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];
1455 HANDLE hcom, hrecv, hsend;
1456 OVERLAPPED orecv, osend;
1463 HANDLE hInputReadyEvent;
1464 HANDLE hInputDoneEvent;
1465 HANDLE hInputThread;
1466 uint8_t win_stdio_buf;
1467 } WinStdioCharState;
1469 #define NSENDBUF 2048
1470 #define NRECVBUF 2048
1471 #define MAXCONNECT 1
1472 #define NTIMEOUT 5000
1474 static int win_chr_poll(void *opaque);
1475 static int win_chr_pipe_poll(void *opaque);
1477 static void win_chr_close(CharDriverState *chr)
1479 WinCharState *s = chr->opaque;
1482 CloseHandle(s->hsend);
1486 CloseHandle(s->hrecv);
1490 CloseHandle(s->hcom);
1494 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1496 qemu_del_polling_cb(win_chr_poll, chr);
1498 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1501 static int win_chr_init(CharDriverState *chr, const char *filename)
1503 WinCharState *s = chr->opaque;
1505 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1510 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1512 fprintf(stderr, "Failed CreateEvent\n");
1515 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1517 fprintf(stderr, "Failed CreateEvent\n");
1521 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1522 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1523 if (s->hcom == INVALID_HANDLE_VALUE) {
1524 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1529 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1530 fprintf(stderr, "Failed SetupComm\n");
1534 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1535 size = sizeof(COMMCONFIG);
1536 GetDefaultCommConfig(filename, &comcfg, &size);
1537 comcfg.dcb.DCBlength = sizeof(DCB);
1538 CommConfigDialog(filename, NULL, &comcfg);
1540 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1541 fprintf(stderr, "Failed SetCommState\n");
1545 if (!SetCommMask(s->hcom, EV_ERR)) {
1546 fprintf(stderr, "Failed SetCommMask\n");
1550 cto.ReadIntervalTimeout = MAXDWORD;
1551 if (!SetCommTimeouts(s->hcom, &cto)) {
1552 fprintf(stderr, "Failed SetCommTimeouts\n");
1556 if (!ClearCommError(s->hcom, &err, &comstat)) {
1557 fprintf(stderr, "Failed ClearCommError\n");
1560 qemu_add_polling_cb(win_chr_poll, chr);
1568 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1570 WinCharState *s = chr->opaque;
1571 DWORD len, ret, size, err;
1574 ZeroMemory(&s->osend, sizeof(s->osend));
1575 s->osend.hEvent = s->hsend;
1578 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1580 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1582 err = GetLastError();
1583 if (err == ERROR_IO_PENDING) {
1584 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1602 static int win_chr_read_poll(CharDriverState *chr)
1604 WinCharState *s = chr->opaque;
1606 s->max_size = qemu_chr_be_can_write(chr);
1610 static void win_chr_readfile(CharDriverState *chr)
1612 WinCharState *s = chr->opaque;
1614 uint8_t buf[READ_BUF_LEN];
1617 ZeroMemory(&s->orecv, sizeof(s->orecv));
1618 s->orecv.hEvent = s->hrecv;
1619 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1621 err = GetLastError();
1622 if (err == ERROR_IO_PENDING) {
1623 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1628 qemu_chr_be_write(chr, buf, size);
1632 static void win_chr_read(CharDriverState *chr)
1634 WinCharState *s = chr->opaque;
1636 if (s->len > s->max_size)
1637 s->len = s->max_size;
1641 win_chr_readfile(chr);
1644 static int win_chr_poll(void *opaque)
1646 CharDriverState *chr = opaque;
1647 WinCharState *s = chr->opaque;
1651 ClearCommError(s->hcom, &comerr, &status);
1652 if (status.cbInQue > 0) {
1653 s->len = status.cbInQue;
1654 win_chr_read_poll(chr);
1661 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1663 CharDriverState *chr;
1666 chr = g_malloc0(sizeof(CharDriverState));
1667 s = g_malloc0(sizeof(WinCharState));
1669 chr->chr_write = win_chr_write;
1670 chr->chr_close = win_chr_close;
1672 if (win_chr_init(chr, filename) < 0) {
1677 qemu_chr_generic_open(chr);
1681 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1683 return qemu_chr_open_win_path(qemu_opt_get(opts, "path"));
1686 static int win_chr_pipe_poll(void *opaque)
1688 CharDriverState *chr = opaque;
1689 WinCharState *s = chr->opaque;
1692 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1695 win_chr_read_poll(chr);
1702 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1704 WinCharState *s = chr->opaque;
1712 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1714 fprintf(stderr, "Failed CreateEvent\n");
1717 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1719 fprintf(stderr, "Failed CreateEvent\n");
1723 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1724 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1725 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1727 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1728 if (s->hcom == INVALID_HANDLE_VALUE) {
1729 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1734 ZeroMemory(&ov, sizeof(ov));
1735 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1736 ret = ConnectNamedPipe(s->hcom, &ov);
1738 fprintf(stderr, "Failed ConnectNamedPipe\n");
1742 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1744 fprintf(stderr, "Failed GetOverlappedResult\n");
1746 CloseHandle(ov.hEvent);
1753 CloseHandle(ov.hEvent);
1756 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1765 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1767 const char *filename = qemu_opt_get(opts, "path");
1768 CharDriverState *chr;
1771 chr = g_malloc0(sizeof(CharDriverState));
1772 s = g_malloc0(sizeof(WinCharState));
1774 chr->chr_write = win_chr_write;
1775 chr->chr_close = win_chr_close;
1777 if (win_chr_pipe_init(chr, filename) < 0) {
1782 qemu_chr_generic_open(chr);
1786 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1788 CharDriverState *chr;
1791 chr = g_malloc0(sizeof(CharDriverState));
1792 s = g_malloc0(sizeof(WinCharState));
1795 chr->chr_write = win_chr_write;
1796 qemu_chr_generic_open(chr);
1800 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1802 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1805 static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
1807 const char *file_out = qemu_opt_get(opts, "path");
1810 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1811 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1812 if (fd_out == INVALID_HANDLE_VALUE) {
1816 return qemu_chr_open_win_file(fd_out);
1819 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1821 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1828 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1838 static void win_stdio_wait_func(void *opaque)
1840 CharDriverState *chr = opaque;
1841 WinStdioCharState *stdio = chr->opaque;
1842 INPUT_RECORD buf[4];
1847 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1851 /* Avoid error storm */
1852 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1856 for (i = 0; i < dwSize; i++) {
1857 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
1859 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
1861 if (kev->uChar.AsciiChar != 0) {
1862 for (j = 0; j < kev->wRepeatCount; j++) {
1863 if (qemu_chr_be_can_write(chr)) {
1864 uint8_t c = kev->uChar.AsciiChar;
1865 qemu_chr_be_write(chr, &c, 1);
1873 static DWORD WINAPI win_stdio_thread(LPVOID param)
1875 CharDriverState *chr = param;
1876 WinStdioCharState *stdio = chr->opaque;
1882 /* Wait for one byte */
1883 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
1885 /* Exit in case of error, continue if nothing read */
1893 /* Some terminal emulator returns \r\n for Enter, just pass \n */
1894 if (stdio->win_stdio_buf == '\r') {
1898 /* Signal the main thread and wait until the byte was eaten */
1899 if (!SetEvent(stdio->hInputReadyEvent)) {
1902 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
1908 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
1912 static void win_stdio_thread_wait_func(void *opaque)
1914 CharDriverState *chr = opaque;
1915 WinStdioCharState *stdio = chr->opaque;
1917 if (qemu_chr_be_can_write(chr)) {
1918 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
1921 SetEvent(stdio->hInputDoneEvent);
1924 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
1926 WinStdioCharState *stdio = chr->opaque;
1929 GetConsoleMode(stdio->hStdIn, &dwMode);
1932 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
1934 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
1938 static void win_stdio_close(CharDriverState *chr)
1940 WinStdioCharState *stdio = chr->opaque;
1942 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
1943 CloseHandle(stdio->hInputReadyEvent);
1945 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
1946 CloseHandle(stdio->hInputDoneEvent);
1948 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
1949 TerminateThread(stdio->hInputThread, 0);
1952 g_free(chr->opaque);
1957 static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
1959 CharDriverState *chr;
1960 WinStdioCharState *stdio;
1964 if (stdio_nb_clients >= STDIO_MAX_CLIENTS
1965 || ((display_type != DT_NOGRAPHIC) && (stdio_nb_clients != 0))) {
1969 chr = g_malloc0(sizeof(CharDriverState));
1970 stdio = g_malloc0(sizeof(WinStdioCharState));
1972 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
1973 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
1974 fprintf(stderr, "cannot open stdio: invalid handle\n");
1978 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
1980 chr->opaque = stdio;
1981 chr->chr_write = win_stdio_write;
1982 chr->chr_close = win_stdio_close;
1984 if (stdio_nb_clients == 0) {
1986 if (qemu_add_wait_object(stdio->hStdIn,
1987 win_stdio_wait_func, chr)) {
1988 fprintf(stderr, "qemu_add_wait_object: failed\n");
1993 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
1994 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
1995 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
1998 if (stdio->hInputThread == INVALID_HANDLE_VALUE
1999 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2000 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2001 fprintf(stderr, "cannot create stdio thread or event\n");
2004 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2005 win_stdio_thread_wait_func, chr)) {
2006 fprintf(stderr, "qemu_add_wait_object: failed\n");
2011 dwMode |= ENABLE_LINE_INPUT;
2013 stdio_clients[stdio_nb_clients++] = chr;
2014 if (stdio_nb_clients == 1 && is_console) {
2015 /* set the terminal in raw mode */
2016 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2017 dwMode |= ENABLE_PROCESSED_INPUT;
2020 SetConsoleMode(stdio->hStdIn, dwMode);
2022 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2023 qemu_chr_fe_set_echo(chr, false);
2027 #endif /* !_WIN32 */
2029 /***********************************************************/
2030 /* UDP Net console */
2034 uint8_t buf[READ_BUF_LEN];
2040 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2042 NetCharDriver *s = chr->opaque;
2044 return send(s->fd, (const void *)buf, len, 0);
2047 static int udp_chr_read_poll(void *opaque)
2049 CharDriverState *chr = opaque;
2050 NetCharDriver *s = chr->opaque;
2052 s->max_size = qemu_chr_be_can_write(chr);
2054 /* If there were any stray characters in the queue process them
2057 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2058 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2060 s->max_size = qemu_chr_be_can_write(chr);
2065 static void udp_chr_read(void *opaque)
2067 CharDriverState *chr = opaque;
2068 NetCharDriver *s = chr->opaque;
2070 if (s->max_size == 0)
2072 s->bufcnt = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0);
2073 s->bufptr = s->bufcnt;
2078 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2079 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2081 s->max_size = qemu_chr_be_can_write(chr);
2085 static void udp_chr_update_read_handler(CharDriverState *chr)
2087 NetCharDriver *s = chr->opaque;
2090 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
2091 udp_chr_read, NULL, chr);
2095 static void udp_chr_close(CharDriverState *chr)
2097 NetCharDriver *s = chr->opaque;
2099 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2103 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2106 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2108 CharDriverState *chr = NULL;
2109 NetCharDriver *s = NULL;
2110 Error *local_err = NULL;
2113 chr = g_malloc0(sizeof(CharDriverState));
2114 s = g_malloc0(sizeof(NetCharDriver));
2116 fd = inet_dgram_opts(opts, &local_err);
2125 chr->chr_write = udp_chr_write;
2126 chr->chr_update_read_handler = udp_chr_update_read_handler;
2127 chr->chr_close = udp_chr_close;
2132 qerror_report_err(local_err);
2133 error_free(local_err);
2143 /***********************************************************/
2144 /* TCP Net console */
2156 static void tcp_chr_accept(void *opaque);
2158 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2160 TCPCharDriver *s = chr->opaque;
2162 return send_all(s->fd, buf, len);
2164 /* XXX: indicate an error ? */
2169 static int tcp_chr_read_poll(void *opaque)
2171 CharDriverState *chr = opaque;
2172 TCPCharDriver *s = chr->opaque;
2175 s->max_size = qemu_chr_be_can_write(chr);
2180 #define IAC_BREAK 243
2181 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2183 uint8_t *buf, int *size)
2185 /* Handle any telnet client's basic IAC options to satisfy char by
2186 * char mode with no echo. All IAC options will be removed from
2187 * the buf and the do_telnetopt variable will be used to track the
2188 * state of the width of the IAC information.
2190 * IAC commands come in sets of 3 bytes with the exception of the
2191 * "IAC BREAK" command and the double IAC.
2197 for (i = 0; i < *size; i++) {
2198 if (s->do_telnetopt > 1) {
2199 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2200 /* Double IAC means send an IAC */
2204 s->do_telnetopt = 1;
2206 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2207 /* Handle IAC break commands by sending a serial break */
2208 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2213 if (s->do_telnetopt >= 4) {
2214 s->do_telnetopt = 1;
2217 if ((unsigned char)buf[i] == IAC) {
2218 s->do_telnetopt = 2;
2229 static int tcp_get_msgfd(CharDriverState *chr)
2231 TCPCharDriver *s = chr->opaque;
2238 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2240 TCPCharDriver *s = chr->opaque;
2241 struct cmsghdr *cmsg;
2243 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2246 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2247 cmsg->cmsg_level != SOL_SOCKET ||
2248 cmsg->cmsg_type != SCM_RIGHTS)
2251 fd = *((int *)CMSG_DATA(cmsg));
2255 #ifndef MSG_CMSG_CLOEXEC
2256 qemu_set_cloexec(fd);
2264 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2266 TCPCharDriver *s = chr->opaque;
2267 struct msghdr msg = { NULL, };
2268 struct iovec iov[1];
2270 struct cmsghdr cmsg;
2271 char control[CMSG_SPACE(sizeof(int))];
2276 iov[0].iov_base = buf;
2277 iov[0].iov_len = len;
2281 msg.msg_control = &msg_control;
2282 msg.msg_controllen = sizeof(msg_control);
2284 #ifdef MSG_CMSG_CLOEXEC
2285 flags |= MSG_CMSG_CLOEXEC;
2287 ret = recvmsg(s->fd, &msg, flags);
2288 if (ret > 0 && s->is_unix) {
2289 unix_process_msgfd(chr, &msg);
2295 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2297 TCPCharDriver *s = chr->opaque;
2298 return qemu_recv(s->fd, buf, len, 0);
2302 static void tcp_chr_read(void *opaque)
2304 CharDriverState *chr = opaque;
2305 TCPCharDriver *s = chr->opaque;
2306 uint8_t buf[READ_BUF_LEN];
2309 if (!s->connected || s->max_size <= 0)
2312 if (len > s->max_size)
2314 size = tcp_chr_recv(chr, (void *)buf, len);
2316 /* connection closed */
2318 if (s->listen_fd >= 0) {
2319 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2321 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2324 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2325 } else if (size > 0) {
2326 if (s->do_telnetopt)
2327 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2329 qemu_chr_be_write(chr, buf, size);
2334 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2336 return qemu_chr_open_fd(eventfd, eventfd);
2340 static void tcp_chr_connect(void *opaque)
2342 CharDriverState *chr = opaque;
2343 TCPCharDriver *s = chr->opaque;
2347 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2348 tcp_chr_read, NULL, chr);
2350 qemu_chr_generic_open(chr);
2353 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2354 static void tcp_chr_telnet_init(int fd)
2357 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2358 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2359 send(fd, (char *)buf, 3, 0);
2360 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2361 send(fd, (char *)buf, 3, 0);
2362 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2363 send(fd, (char *)buf, 3, 0);
2364 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2365 send(fd, (char *)buf, 3, 0);
2368 static void socket_set_nodelay(int fd)
2371 setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
2374 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2376 TCPCharDriver *s = chr->opaque;
2380 socket_set_nonblock(fd);
2382 socket_set_nodelay(fd);
2384 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
2385 tcp_chr_connect(chr);
2390 static void tcp_chr_accept(void *opaque)
2392 CharDriverState *chr = opaque;
2393 TCPCharDriver *s = chr->opaque;
2394 struct sockaddr_in saddr;
2396 struct sockaddr_un uaddr;
2398 struct sockaddr *addr;
2405 len = sizeof(uaddr);
2406 addr = (struct sockaddr *)&uaddr;
2410 len = sizeof(saddr);
2411 addr = (struct sockaddr *)&saddr;
2413 fd = qemu_accept(s->listen_fd, addr, &len);
2414 if (fd < 0 && errno != EINTR) {
2416 } else if (fd >= 0) {
2417 if (s->do_telnetopt)
2418 tcp_chr_telnet_init(fd);
2422 if (tcp_chr_add_client(chr, fd) < 0)
2426 static void tcp_chr_close(CharDriverState *chr)
2428 TCPCharDriver *s = chr->opaque;
2430 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2433 if (s->listen_fd >= 0) {
2434 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
2435 closesocket(s->listen_fd);
2438 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2441 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2442 bool is_listen, bool is_telnet,
2443 bool is_waitconnect,
2446 CharDriverState *chr = NULL;
2447 TCPCharDriver *s = NULL;
2448 char host[NI_MAXHOST], serv[NI_MAXSERV];
2449 const char *left = "", *right = "";
2450 struct sockaddr_storage ss;
2451 socklen_t ss_len = sizeof(ss);
2453 memset(&ss, 0, ss_len);
2454 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2455 error_setg(errp, "getsockname: %s", strerror(errno));
2459 chr = g_malloc0(sizeof(CharDriverState));
2460 s = g_malloc0(sizeof(TCPCharDriver));
2467 chr->filename = g_malloc(256);
2468 switch (ss.ss_family) {
2472 snprintf(chr->filename, 256, "unix:%s%s",
2473 ((struct sockaddr_un *)(&ss))->sun_path,
2474 is_listen ? ",server" : "");
2482 s->do_nodelay = do_nodelay;
2483 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2484 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2485 snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
2486 is_telnet ? "telnet" : "tcp",
2487 left, host, right, serv,
2488 is_listen ? ",server" : "");
2493 chr->chr_write = tcp_chr_write;
2494 chr->chr_close = tcp_chr_close;
2495 chr->get_msgfd = tcp_get_msgfd;
2496 chr->chr_add_client = tcp_chr_add_client;
2500 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2502 s->do_telnetopt = 1;
2507 socket_set_nodelay(fd);
2508 tcp_chr_connect(chr);
2511 if (is_listen && is_waitconnect) {
2512 printf("QEMU waiting for connection on: %s\n",
2514 tcp_chr_accept(chr);
2515 socket_set_nonblock(s->listen_fd);
2520 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2522 CharDriverState *chr = NULL;
2523 Error *local_err = NULL;
2531 is_listen = qemu_opt_get_bool(opts, "server", 0);
2532 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2533 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2534 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2535 is_unix = qemu_opt_get(opts, "path") != NULL;
2541 fd = unix_listen_opts(opts, &local_err);
2543 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2547 fd = inet_listen_opts(opts, 0, &local_err);
2549 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2556 if (!is_waitconnect)
2557 socket_set_nonblock(fd);
2559 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2560 is_waitconnect, &local_err);
2561 if (error_is_set(&local_err)) {
2569 qerror_report_err(local_err);
2570 error_free(local_err);
2576 g_free(chr->opaque);
2582 /***********************************************************/
2583 /* Memory chardev */
2586 size_t outbuf_capacity;
2590 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2592 MemoryDriver *d = chr->opaque;
2594 /* TODO: the QString implementation has the same code, we should
2595 * introduce a generic way to do this in cutils.c */
2596 if (d->outbuf_capacity < d->outbuf_size + len) {
2598 d->outbuf_capacity += len;
2599 d->outbuf_capacity *= 2;
2600 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2603 memcpy(d->outbuf + d->outbuf_size, buf, len);
2604 d->outbuf_size += len;
2609 void qemu_chr_init_mem(CharDriverState *chr)
2613 d = g_malloc(sizeof(*d));
2615 d->outbuf_capacity = 4096;
2616 d->outbuf = g_malloc0(d->outbuf_capacity);
2618 memset(chr, 0, sizeof(*chr));
2620 chr->chr_write = mem_chr_write;
2623 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2625 MemoryDriver *d = chr->opaque;
2626 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2629 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2630 void qemu_chr_close_mem(CharDriverState *chr)
2632 MemoryDriver *d = chr->opaque;
2635 g_free(chr->opaque);
2637 chr->chr_write = NULL;
2640 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2642 const MemoryDriver *d = chr->opaque;
2643 return d->outbuf_size;
2646 /*********************************************************/
2647 /* Ring buffer chardev */
2654 } RingBufCharDriver;
2656 static size_t ringbuf_count(const CharDriverState *chr)
2658 const RingBufCharDriver *d = chr->opaque;
2660 return d->prod - d->cons;
2663 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2665 RingBufCharDriver *d = chr->opaque;
2668 if (!buf || (len < 0)) {
2672 for (i = 0; i < len; i++ ) {
2673 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2674 if (d->prod - d->cons > d->size) {
2675 d->cons = d->prod - d->size;
2682 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2684 RingBufCharDriver *d = chr->opaque;
2687 for (i = 0; i < len && d->cons != d->prod; i++) {
2688 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2694 static void ringbuf_chr_close(struct CharDriverState *chr)
2696 RingBufCharDriver *d = chr->opaque;
2703 static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
2705 CharDriverState *chr;
2706 RingBufCharDriver *d;
2708 chr = g_malloc0(sizeof(CharDriverState));
2709 d = g_malloc(sizeof(*d));
2711 d->size = qemu_opt_get_size(opts, "size", 0);
2716 /* The size must be power of 2 */
2717 if (d->size & (d->size - 1)) {
2718 error_report("size of ringbuf device must be power of two");
2724 d->cbuf = g_malloc0(d->size);
2727 chr->chr_write = ringbuf_chr_write;
2728 chr->chr_close = ringbuf_chr_close;
2738 static bool chr_is_ringbuf(const CharDriverState *chr)
2740 return chr->chr_write == ringbuf_chr_write;
2743 void qmp_ringbuf_write(const char *device, const char *data,
2744 bool has_format, enum DataFormat format,
2747 CharDriverState *chr;
2748 const uint8_t *write_data;
2752 chr = qemu_chr_find(device);
2754 error_setg(errp, "Device '%s' not found", device);
2758 if (!chr_is_ringbuf(chr)) {
2759 error_setg(errp,"%s is not a ringbuf device", device);
2763 if (has_format && (format == DATA_FORMAT_BASE64)) {
2764 write_data = g_base64_decode(data, &write_count);
2766 write_data = (uint8_t *)data;
2767 write_count = strlen(data);
2770 ret = ringbuf_chr_write(chr, write_data, write_count);
2772 if (write_data != (uint8_t *)data) {
2773 g_free((void *)write_data);
2777 error_setg(errp, "Failed to write to device %s", device);
2782 char *qmp_ringbuf_read(const char *device, int64_t size,
2783 bool has_format, enum DataFormat format,
2786 CharDriverState *chr;
2791 chr = qemu_chr_find(device);
2793 error_setg(errp, "Device '%s' not found", device);
2797 if (!chr_is_ringbuf(chr)) {
2798 error_setg(errp,"%s is not a ringbuf device", device);
2803 error_setg(errp, "size must be greater than zero");
2807 count = ringbuf_count(chr);
2808 size = size > count ? count : size;
2809 read_data = g_malloc(size + 1);
2811 ringbuf_chr_read(chr, read_data, size);
2813 if (has_format && (format == DATA_FORMAT_BASE64)) {
2814 data = g_base64_encode(read_data, size);
2818 * FIXME should read only complete, valid UTF-8 characters up
2819 * to @size bytes. Invalid sequences should be replaced by a
2820 * suitable replacement character. Except when (and only
2821 * when) ring buffer lost characters since last read, initial
2822 * continuation characters should be dropped.
2824 read_data[size] = 0;
2825 data = (char *)read_data;
2831 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2833 char host[65], port[33], width[8], height[8];
2837 Error *local_err = NULL;
2839 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
2840 if (error_is_set(&local_err)) {
2841 qerror_report_err(local_err);
2842 error_free(local_err);
2846 if (strstart(filename, "mon:", &p)) {
2848 qemu_opt_set(opts, "mux", "on");
2851 if (strcmp(filename, "null") == 0 ||
2852 strcmp(filename, "pty") == 0 ||
2853 strcmp(filename, "msmouse") == 0 ||
2854 strcmp(filename, "braille") == 0 ||
2855 strcmp(filename, "stdio") == 0) {
2856 qemu_opt_set(opts, "backend", filename);
2859 if (strstart(filename, "vc", &p)) {
2860 qemu_opt_set(opts, "backend", "vc");
2862 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2864 qemu_opt_set(opts, "width", width);
2865 qemu_opt_set(opts, "height", height);
2866 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2868 qemu_opt_set(opts, "cols", width);
2869 qemu_opt_set(opts, "rows", height);
2876 if (strcmp(filename, "con:") == 0) {
2877 qemu_opt_set(opts, "backend", "console");
2880 if (strstart(filename, "COM", NULL)) {
2881 qemu_opt_set(opts, "backend", "serial");
2882 qemu_opt_set(opts, "path", filename);
2885 if (strstart(filename, "file:", &p)) {
2886 qemu_opt_set(opts, "backend", "file");
2887 qemu_opt_set(opts, "path", p);
2890 if (strstart(filename, "pipe:", &p)) {
2891 qemu_opt_set(opts, "backend", "pipe");
2892 qemu_opt_set(opts, "path", p);
2895 if (strstart(filename, "tcp:", &p) ||
2896 strstart(filename, "telnet:", &p)) {
2897 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2899 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2902 qemu_opt_set(opts, "backend", "socket");
2903 qemu_opt_set(opts, "host", host);
2904 qemu_opt_set(opts, "port", port);
2905 if (p[pos] == ',') {
2906 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2909 if (strstart(filename, "telnet:", &p))
2910 qemu_opt_set(opts, "telnet", "on");
2913 if (strstart(filename, "udp:", &p)) {
2914 qemu_opt_set(opts, "backend", "udp");
2915 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2917 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
2921 qemu_opt_set(opts, "host", host);
2922 qemu_opt_set(opts, "port", port);
2923 if (p[pos] == '@') {
2925 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2927 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2931 qemu_opt_set(opts, "localaddr", host);
2932 qemu_opt_set(opts, "localport", port);
2936 if (strstart(filename, "unix:", &p)) {
2937 qemu_opt_set(opts, "backend", "socket");
2938 if (qemu_opts_do_parse(opts, p, "path") != 0)
2942 if (strstart(filename, "/dev/parport", NULL) ||
2943 strstart(filename, "/dev/ppi", NULL)) {
2944 qemu_opt_set(opts, "backend", "parport");
2945 qemu_opt_set(opts, "path", filename);
2948 if (strstart(filename, "/dev/", NULL)) {
2949 qemu_opt_set(opts, "backend", "tty");
2950 qemu_opt_set(opts, "path", filename);
2955 qemu_opts_del(opts);
2959 #ifdef HAVE_CHARDEV_PARPORT
2961 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
2963 const char *filename = qemu_opt_get(opts, "path");
2966 fd = qemu_open(filename, O_RDWR);
2970 return qemu_chr_open_pp_fd(fd);
2975 static const struct {
2977 CharDriverState *(*open)(QemuOpts *opts);
2978 } backend_table[] = {
2979 { .name = "null", .open = qemu_chr_open_null },
2980 { .name = "socket", .open = qemu_chr_open_socket },
2981 { .name = "udp", .open = qemu_chr_open_udp },
2982 { .name = "msmouse", .open = qemu_chr_open_msmouse },
2983 { .name = "vc", .open = text_console_init },
2984 { .name = "memory", .open = qemu_chr_open_ringbuf },
2986 { .name = "file", .open = qemu_chr_open_win_file_out },
2987 { .name = "pipe", .open = qemu_chr_open_win_pipe },
2988 { .name = "console", .open = qemu_chr_open_win_con },
2989 { .name = "serial", .open = qemu_chr_open_win },
2990 { .name = "stdio", .open = qemu_chr_open_win_stdio },
2992 { .name = "file", .open = qemu_chr_open_file_out },
2993 { .name = "pipe", .open = qemu_chr_open_pipe },
2994 { .name = "stdio", .open = qemu_chr_open_stdio },
2996 #ifdef CONFIG_BRLAPI
2997 { .name = "braille", .open = chr_baum_init },
2999 #ifdef HAVE_CHARDEV_TTY
3000 { .name = "tty", .open = qemu_chr_open_tty },
3001 { .name = "serial", .open = qemu_chr_open_tty },
3002 { .name = "pty", .open = qemu_chr_open_pty },
3004 #ifdef HAVE_CHARDEV_PARPORT
3005 { .name = "parallel", .open = qemu_chr_open_pp },
3006 { .name = "parport", .open = qemu_chr_open_pp },
3009 { .name = "spicevmc", .open = qemu_chr_open_spice },
3010 #if SPICE_SERVER_VERSION >= 0x000c02
3011 { .name = "spiceport", .open = qemu_chr_open_spice_port },
3016 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3017 void (*init)(struct CharDriverState *s),
3020 CharDriverState *chr;
3023 if (qemu_opts_id(opts) == NULL) {
3024 error_setg(errp, "chardev: no id specified\n");
3028 if (qemu_opt_get(opts, "backend") == NULL) {
3029 error_setg(errp, "chardev: \"%s\" missing backend\n",
3030 qemu_opts_id(opts));
3033 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
3034 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
3037 if (i == ARRAY_SIZE(backend_table)) {
3038 error_setg(errp, "chardev: backend \"%s\" not found\n",
3039 qemu_opt_get(opts, "backend"));
3043 chr = backend_table[i].open(opts);
3045 error_setg(errp, "chardev: opening backend \"%s\" failed\n",
3046 qemu_opt_get(opts, "backend"));
3051 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3053 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3055 if (qemu_opt_get_bool(opts, "mux", 0)) {
3056 CharDriverState *base = chr;
3057 int len = strlen(qemu_opts_id(opts)) + 6;
3058 base->label = g_malloc(len);
3059 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3060 chr = qemu_chr_open_mux(base);
3061 chr->filename = base->filename;
3062 chr->avail_connections = MAX_MUX;
3063 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3065 chr->avail_connections = 1;
3067 chr->label = g_strdup(qemu_opts_id(opts));
3072 qemu_opts_del(opts);
3076 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3079 CharDriverState *chr;
3083 if (strstart(filename, "chardev:", &p)) {
3084 return qemu_chr_find(p);
3087 opts = qemu_chr_parse_compat(label, filename);
3091 chr = qemu_chr_new_from_opts(opts, init, &err);
3092 if (error_is_set(&err)) {
3093 fprintf(stderr, "%s\n", error_get_pretty(err));
3096 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3097 monitor_init(chr, MONITOR_USE_READLINE);
3102 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3104 if (chr->chr_set_echo) {
3105 chr->chr_set_echo(chr, echo);
3109 void qemu_chr_fe_open(struct CharDriverState *chr)
3111 if (chr->chr_guest_open) {
3112 chr->chr_guest_open(chr);
3116 void qemu_chr_fe_close(struct CharDriverState *chr)
3118 if (chr->chr_guest_close) {
3119 chr->chr_guest_close(chr);
3123 void qemu_chr_delete(CharDriverState *chr)
3125 QTAILQ_REMOVE(&chardevs, chr, next);
3126 if (chr->chr_close) {
3127 chr->chr_close(chr);
3129 g_free(chr->filename);
3132 qemu_opts_del(chr->opts);
3137 ChardevInfoList *qmp_query_chardev(Error **errp)
3139 ChardevInfoList *chr_list = NULL;
3140 CharDriverState *chr;
3142 QTAILQ_FOREACH(chr, &chardevs, next) {
3143 ChardevInfoList *info = g_malloc0(sizeof(*info));
3144 info->value = g_malloc0(sizeof(*info->value));
3145 info->value->label = g_strdup(chr->label);
3146 info->value->filename = g_strdup(chr->filename);
3148 info->next = chr_list;
3155 CharDriverState *qemu_chr_find(const char *name)
3157 CharDriverState *chr;
3159 QTAILQ_FOREACH(chr, &chardevs, next) {
3160 if (strcmp(chr->label, name) != 0)
3167 /* Get a character (serial) device interface. */
3168 CharDriverState *qemu_char_get_next_serial(void)
3170 static int next_serial;
3172 /* FIXME: This function needs to go away: use chardev properties! */
3173 return serial_hds[next_serial++];
3176 QemuOptsList qemu_chardev_opts = {
3178 .implied_opt_name = "backend",
3179 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3183 .type = QEMU_OPT_STRING,
3186 .type = QEMU_OPT_STRING,
3189 .type = QEMU_OPT_STRING,
3192 .type = QEMU_OPT_STRING,
3194 .name = "localaddr",
3195 .type = QEMU_OPT_STRING,
3197 .name = "localport",
3198 .type = QEMU_OPT_STRING,
3201 .type = QEMU_OPT_NUMBER,
3204 .type = QEMU_OPT_BOOL,
3207 .type = QEMU_OPT_BOOL,
3210 .type = QEMU_OPT_BOOL,
3213 .type = QEMU_OPT_BOOL,
3216 .type = QEMU_OPT_BOOL,
3219 .type = QEMU_OPT_BOOL,
3222 .type = QEMU_OPT_NUMBER,
3225 .type = QEMU_OPT_NUMBER,
3228 .type = QEMU_OPT_NUMBER,
3231 .type = QEMU_OPT_NUMBER,
3234 .type = QEMU_OPT_BOOL,
3237 .type = QEMU_OPT_BOOL,
3240 .type = QEMU_OPT_STRING,
3243 .type = QEMU_OPT_NUMBER,
3246 .type = QEMU_OPT_SIZE,
3248 { /* end of list */ }
3254 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3259 error_setg(errp, "input file not supported");
3263 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3264 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3265 if (out == INVALID_HANDLE_VALUE) {
3266 error_setg(errp, "open %s failed", file->out);
3269 return qemu_chr_open_win_file(out);
3272 static CharDriverState *qmp_chardev_open_port(ChardevPort *port, Error **errp)
3274 switch (port->type) {
3275 case CHARDEV_PORT_KIND_SERIAL:
3276 return qemu_chr_open_win_path(port->device);
3278 error_setg(errp, "unknown chardev port (%d)", port->type);
3285 static int qmp_chardev_open_file_source(char *src, int flags,
3290 TFR(fd = qemu_open(src, flags, 0666));
3292 error_setg(errp, "open %s: %s", src, strerror(errno));
3297 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3299 int flags, in = -1, out = -1;
3301 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3302 out = qmp_chardev_open_file_source(file->out, flags, errp);
3303 if (error_is_set(errp)) {
3309 in = qmp_chardev_open_file_source(file->in, flags, errp);
3310 if (error_is_set(errp)) {
3316 return qemu_chr_open_fd(in, out);
3319 static CharDriverState *qmp_chardev_open_port(ChardevPort *port, Error **errp)
3321 switch (port->type) {
3322 #ifdef HAVE_CHARDEV_TTY
3323 case CHARDEV_PORT_KIND_SERIAL:
3327 fd = qmp_chardev_open_file_source(port->device, flags, errp);
3328 if (error_is_set(errp)) {
3331 socket_set_nonblock(fd);
3332 return qemu_chr_open_tty_fd(fd);
3335 #ifdef HAVE_CHARDEV_PARPORT
3336 case CHARDEV_PORT_KIND_PARALLEL:
3340 fd = qmp_chardev_open_file_source(port->device, flags, errp);
3341 if (error_is_set(errp)) {
3344 return qemu_chr_open_pp_fd(fd);
3348 error_setg(errp, "unknown chardev port (%d)", port->type);
3355 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3358 SocketAddress *addr = sock->addr;
3359 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3360 bool is_listen = sock->has_server ? sock->server : true;
3361 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3362 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3366 fd = socket_listen(addr, errp);
3368 fd = socket_connect(addr, errp, NULL, NULL);
3370 if (error_is_set(errp)) {
3373 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3374 is_telnet, is_waitconnect, errp);
3377 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3380 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3381 CharDriverState *chr = NULL;
3383 chr = qemu_chr_find(id);
3385 error_setg(errp, "Chardev '%s' already exists", id);
3390 switch (backend->kind) {
3391 case CHARDEV_BACKEND_KIND_FILE:
3392 chr = qmp_chardev_open_file(backend->file, errp);
3394 case CHARDEV_BACKEND_KIND_PORT:
3395 chr = qmp_chardev_open_port(backend->port, errp);
3397 case CHARDEV_BACKEND_KIND_SOCKET:
3398 chr = qmp_chardev_open_socket(backend->socket, errp);
3400 #ifdef HAVE_CHARDEV_TTY
3401 case CHARDEV_BACKEND_KIND_PTY:
3403 /* qemu_chr_open_pty sets "path" in opts */
3405 opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
3406 chr = qemu_chr_open_pty(opts);
3407 ret->pty = g_strdup(qemu_opt_get(opts, "path"));
3408 ret->has_pty = true;
3409 qemu_opts_del(opts);
3413 case CHARDEV_BACKEND_KIND_NULL:
3414 chr = qemu_chr_open_null(NULL);
3417 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3421 if (chr == NULL && !error_is_set(errp)) {
3422 error_setg(errp, "Failed to create chardev");
3425 chr->label = g_strdup(id);
3426 chr->avail_connections = 1;
3427 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3435 void qmp_chardev_remove(const char *id, Error **errp)
3437 CharDriverState *chr;
3439 chr = qemu_chr_find(id);
3441 error_setg(errp, "Chardev '%s' not found", id);
3444 if (chr->chr_can_read || chr->chr_read ||
3445 chr->chr_event || chr->handler_opaque) {
3446 error_setg(errp, "Chardev '%s' is busy", id);
3449 qemu_chr_delete(chr);