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) {
544 typedef struct IOWatchPoll
549 IOCanReadHandler *fd_can_read;
552 QTAILQ_ENTRY(IOWatchPoll) node;
555 static QTAILQ_HEAD(, IOWatchPoll) io_watch_poll_list =
556 QTAILQ_HEAD_INITIALIZER(io_watch_poll_list);
558 static IOWatchPoll *io_watch_poll_from_source(GSource *source)
562 QTAILQ_FOREACH(i, &io_watch_poll_list, node) {
563 if (i->src == source) {
571 static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
573 IOWatchPoll *iwp = io_watch_poll_from_source(source);
575 iwp->max_size = iwp->fd_can_read(iwp->opaque);
576 if (iwp->max_size == 0) {
580 return g_io_watch_funcs.prepare(source, timeout_);
583 static gboolean io_watch_poll_check(GSource *source)
585 IOWatchPoll *iwp = io_watch_poll_from_source(source);
587 if (iwp->max_size == 0) {
591 return g_io_watch_funcs.check(source);
594 static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
597 return g_io_watch_funcs.dispatch(source, callback, user_data);
600 static void io_watch_poll_finalize(GSource *source)
602 IOWatchPoll *iwp = io_watch_poll_from_source(source);
603 QTAILQ_REMOVE(&io_watch_poll_list, iwp, node);
604 g_io_watch_funcs.finalize(source);
607 static GSourceFuncs io_watch_poll_funcs = {
608 .prepare = io_watch_poll_prepare,
609 .check = io_watch_poll_check,
610 .dispatch = io_watch_poll_dispatch,
611 .finalize = io_watch_poll_finalize,
614 /* Can only be used for read */
615 static guint io_add_watch_poll(GIOChannel *channel,
616 IOCanReadHandler *fd_can_read,
624 src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
625 g_source_set_funcs(src, &io_watch_poll_funcs);
626 g_source_set_callback(src, (GSourceFunc)fd_read, user_data, NULL);
627 tag = g_source_attach(src, NULL);
630 iwp = g_malloc0(sizeof(*iwp));
633 iwp->fd_can_read = fd_can_read;
634 iwp->opaque = user_data;
636 QTAILQ_INSERT_HEAD(&io_watch_poll_list, iwp, node);
641 static GIOChannel *io_channel_from_fd(int fd)
649 chan = g_io_channel_unix_new(fd);
651 g_io_channel_set_encoding(chan, NULL, NULL);
652 g_io_channel_set_buffered(chan, FALSE);
657 static GIOChannel *io_channel_from_socket(int fd)
666 chan = g_io_channel_win32_new_socket(fd);
668 chan = g_io_channel_unix_new(fd);
671 g_io_channel_set_encoding(chan, NULL, NULL);
672 g_io_channel_set_buffered(chan, FALSE);
677 static int io_channel_send_all(GIOChannel *fd, const void *_buf, int len1)
682 const uint8_t *buf = _buf;
686 status = g_io_channel_write_chars(fd, (const gchar *)buf, len,
687 &bytes_written, NULL);
688 if (status != G_IO_STATUS_NORMAL) {
689 if (status != G_IO_STATUS_AGAIN) {
692 } else if (status == G_IO_STATUS_EOF) {
695 buf += bytes_written;
696 len -= bytes_written;
702 typedef struct FDCharDriver {
703 CharDriverState *chr;
704 GIOChannel *fd_in, *fd_out;
707 QTAILQ_ENTRY(FDCharDriver) node;
710 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
712 FDCharDriver *s = chr->opaque;
714 return io_channel_send_all(s->fd_out, buf, len);
717 static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
719 CharDriverState *chr = opaque;
720 FDCharDriver *s = chr->opaque;
722 uint8_t buf[READ_BUF_LEN];
727 if (len > s->max_size) {
734 status = g_io_channel_read_chars(chan, (gchar *)buf,
735 len, &bytes_read, NULL);
736 if (status == G_IO_STATUS_EOF) {
737 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
740 if (status == G_IO_STATUS_NORMAL) {
741 qemu_chr_be_write(chr, buf, bytes_read);
747 static int fd_chr_read_poll(void *opaque)
749 CharDriverState *chr = opaque;
750 FDCharDriver *s = chr->opaque;
752 s->max_size = qemu_chr_be_can_write(chr);
756 static void fd_chr_update_read_handler(CharDriverState *chr)
758 FDCharDriver *s = chr->opaque;
761 g_source_remove(s->fd_in_tag);
765 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
769 static void fd_chr_close(struct CharDriverState *chr)
771 FDCharDriver *s = chr->opaque;
774 g_source_remove(s->fd_in_tag);
779 g_io_channel_unref(s->fd_in);
782 g_io_channel_unref(s->fd_out);
786 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
789 /* open a character device to a unix fd */
790 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
792 CharDriverState *chr;
795 chr = g_malloc0(sizeof(CharDriverState));
796 s = g_malloc0(sizeof(FDCharDriver));
797 s->fd_in = io_channel_from_fd(fd_in);
798 s->fd_out = io_channel_from_fd(fd_out);
801 chr->chr_write = fd_chr_write;
802 chr->chr_update_read_handler = fd_chr_update_read_handler;
803 chr->chr_close = fd_chr_close;
805 qemu_chr_generic_open(chr);
810 static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
814 TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
815 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
819 return qemu_chr_open_fd(-1, fd_out);
822 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
825 char filename_in[256], filename_out[256];
826 const char *filename = qemu_opt_get(opts, "path");
828 if (filename == NULL) {
829 fprintf(stderr, "chardev: pipe: no filename given\n");
833 snprintf(filename_in, 256, "%s.in", filename);
834 snprintf(filename_out, 256, "%s.out", filename);
835 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
836 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
837 if (fd_in < 0 || fd_out < 0) {
842 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
847 return qemu_chr_open_fd(fd_in, fd_out);
850 /* init terminal so that we can grab keys */
851 static struct termios oldtty;
852 static int old_fd0_flags;
853 static bool stdio_allow_signal;
855 static void term_exit(void)
857 tcsetattr (0, TCSANOW, &oldtty);
858 fcntl(0, F_SETFL, old_fd0_flags);
861 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
867 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
868 |INLCR|IGNCR|ICRNL|IXON);
869 tty.c_oflag |= OPOST;
870 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
871 tty.c_cflag &= ~(CSIZE|PARENB);
876 /* if graphical mode, we allow Ctrl-C handling */
877 if (!stdio_allow_signal)
878 tty.c_lflag &= ~ISIG;
880 tcsetattr (0, TCSANOW, &tty);
883 static void qemu_chr_close_stdio(struct CharDriverState *chr)
889 static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
891 CharDriverState *chr;
893 if (is_daemonized()) {
894 error_report("cannot use stdio with -daemonize");
897 old_fd0_flags = fcntl(0, F_GETFL);
898 tcgetattr (0, &oldtty);
899 fcntl(0, F_SETFL, O_NONBLOCK);
902 chr = qemu_chr_open_fd(0, 1);
903 chr->chr_close = qemu_chr_close_stdio;
904 chr->chr_set_echo = qemu_chr_set_echo_stdio;
905 stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
906 display_type != DT_NOGRAPHIC);
907 qemu_chr_fe_set_echo(chr, false);
913 /* Once Solaris has openpty(), this is going to be removed. */
914 static int openpty(int *amaster, int *aslave, char *name,
915 struct termios *termp, struct winsize *winp)
918 int mfd = -1, sfd = -1;
920 *amaster = *aslave = -1;
922 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
926 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
929 if ((slave = ptsname(mfd)) == NULL)
932 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
935 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
936 (termp != NULL && tcgetattr(sfd, termp) < 0))
944 ioctl(sfd, TIOCSWINSZ, winp);
955 static void cfmakeraw (struct termios *termios_p)
957 termios_p->c_iflag &=
958 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
959 termios_p->c_oflag &= ~OPOST;
960 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
961 termios_p->c_cflag &= ~(CSIZE|PARENB);
962 termios_p->c_cflag |= CS8;
964 termios_p->c_cc[VMIN] = 0;
965 termios_p->c_cc[VTIME] = 0;
969 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
970 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
971 || defined(__GLIBC__)
973 #define HAVE_CHARDEV_TTY 1
984 static void pty_chr_update_read_handler(CharDriverState *chr);
985 static void pty_chr_state(CharDriverState *chr, int connected);
987 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
989 PtyCharDriver *s = chr->opaque;
992 /* guest sends data, check for (re-)connect */
993 pty_chr_update_read_handler(chr);
996 return io_channel_send_all(s->fd, buf, len);
999 static int pty_chr_read_poll(void *opaque)
1001 CharDriverState *chr = opaque;
1002 PtyCharDriver *s = chr->opaque;
1004 s->read_bytes = qemu_chr_be_can_write(chr);
1005 return s->read_bytes;
1008 static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
1010 CharDriverState *chr = opaque;
1011 PtyCharDriver *s = chr->opaque;
1013 uint8_t buf[READ_BUF_LEN];
1017 if (len > s->read_bytes)
1018 len = s->read_bytes;
1021 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1022 if (status != G_IO_STATUS_NORMAL) {
1023 pty_chr_state(chr, 0);
1026 pty_chr_state(chr, 1);
1027 qemu_chr_be_write(chr, buf, size);
1032 static void pty_chr_update_read_handler(CharDriverState *chr)
1034 PtyCharDriver *s = chr->opaque;
1037 g_source_remove(s->fd_tag);
1040 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
1043 * Short timeout here: just need wait long enougth that qemu makes
1044 * it through the poll loop once. When reconnected we want a
1045 * short timeout so we notice it almost instantly. Otherwise
1046 * read() gives us -EIO instantly, making pty_chr_state() reset the
1047 * timeout to the normal (much longer) poll interval before the
1050 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
1053 static void pty_chr_state(CharDriverState *chr, int connected)
1055 PtyCharDriver *s = chr->opaque;
1058 g_source_remove(s->fd_tag);
1062 /* (re-)connect poll interval for idle guests: once per second.
1063 * We check more frequently in case the guests sends data to
1064 * the virtual device linked to our pty. */
1065 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
1068 qemu_chr_generic_open(chr);
1073 static void pty_chr_timer(void *opaque)
1075 struct CharDriverState *chr = opaque;
1076 PtyCharDriver *s = chr->opaque;
1081 /* If we arrive here without polling being cleared due
1082 * read returning -EIO, then we are (re-)connected */
1083 pty_chr_state(chr, 1);
1088 pty_chr_update_read_handler(chr);
1091 static void pty_chr_close(struct CharDriverState *chr)
1093 PtyCharDriver *s = chr->opaque;
1097 g_source_remove(s->fd_tag);
1099 fd = g_io_channel_unix_get_fd(s->fd);
1100 g_io_channel_unref(s->fd);
1102 qemu_del_timer(s->timer);
1103 qemu_free_timer(s->timer);
1105 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1108 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
1110 CharDriverState *chr;
1114 int master_fd, slave_fd, len;
1115 #if defined(__OpenBSD__) || defined(__DragonFly__)
1116 char pty_name[PATH_MAX];
1117 #define q_ptsname(x) pty_name
1119 char *pty_name = NULL;
1120 #define q_ptsname(x) ptsname(x)
1123 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1127 /* Set raw attributes on the pty. */
1128 tcgetattr(slave_fd, &tty);
1130 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1133 chr = g_malloc0(sizeof(CharDriverState));
1135 len = strlen(q_ptsname(master_fd)) + 5;
1136 chr->filename = g_malloc(len);
1137 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1138 qemu_opt_set(opts, "path", q_ptsname(master_fd));
1140 label = qemu_opts_id(opts);
1141 fprintf(stderr, "char device redirected to %s%s%s%s\n",
1142 q_ptsname(master_fd),
1143 label ? " (label " : "",
1147 s = g_malloc0(sizeof(PtyCharDriver));
1149 chr->chr_write = pty_chr_write;
1150 chr->chr_update_read_handler = pty_chr_update_read_handler;
1151 chr->chr_close = pty_chr_close;
1153 s->fd = io_channel_from_fd(master_fd);
1154 s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
1159 static void tty_serial_init(int fd, int speed,
1160 int parity, int data_bits, int stop_bits)
1166 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1167 speed, parity, data_bits, stop_bits);
1169 tcgetattr (fd, &tty);
1171 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1172 speed = speed * 10 / 11;
1189 /* Non-Posix values follow. They may be unsupported on some systems. */
1191 check_speed(115200);
1193 check_speed(230400);
1196 check_speed(460800);
1199 check_speed(500000);
1202 check_speed(576000);
1205 check_speed(921600);
1208 check_speed(1000000);
1211 check_speed(1152000);
1214 check_speed(1500000);
1217 check_speed(2000000);
1220 check_speed(2500000);
1223 check_speed(3000000);
1226 check_speed(3500000);
1229 check_speed(4000000);
1234 cfsetispeed(&tty, spd);
1235 cfsetospeed(&tty, spd);
1237 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1238 |INLCR|IGNCR|ICRNL|IXON);
1239 tty.c_oflag |= OPOST;
1240 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1241 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1262 tty.c_cflag |= PARENB;
1265 tty.c_cflag |= PARENB | PARODD;
1269 tty.c_cflag |= CSTOPB;
1271 tcsetattr (fd, TCSANOW, &tty);
1274 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1276 FDCharDriver *s = chr->opaque;
1279 case CHR_IOCTL_SERIAL_SET_PARAMS:
1281 QEMUSerialSetParams *ssp = arg;
1282 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1283 ssp->speed, ssp->parity,
1284 ssp->data_bits, ssp->stop_bits);
1287 case CHR_IOCTL_SERIAL_SET_BREAK:
1289 int enable = *(int *)arg;
1291 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1295 case CHR_IOCTL_SERIAL_GET_TIOCM:
1298 int *targ = (int *)arg;
1299 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1301 if (sarg & TIOCM_CTS)
1302 *targ |= CHR_TIOCM_CTS;
1303 if (sarg & TIOCM_CAR)
1304 *targ |= CHR_TIOCM_CAR;
1305 if (sarg & TIOCM_DSR)
1306 *targ |= CHR_TIOCM_DSR;
1307 if (sarg & TIOCM_RI)
1308 *targ |= CHR_TIOCM_RI;
1309 if (sarg & TIOCM_DTR)
1310 *targ |= CHR_TIOCM_DTR;
1311 if (sarg & TIOCM_RTS)
1312 *targ |= CHR_TIOCM_RTS;
1315 case CHR_IOCTL_SERIAL_SET_TIOCM:
1317 int sarg = *(int *)arg;
1319 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1320 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1321 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1322 if (sarg & CHR_TIOCM_CTS)
1324 if (sarg & CHR_TIOCM_CAR)
1326 if (sarg & CHR_TIOCM_DSR)
1328 if (sarg & CHR_TIOCM_RI)
1330 if (sarg & CHR_TIOCM_DTR)
1332 if (sarg & CHR_TIOCM_RTS)
1334 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1343 static void qemu_chr_close_tty(CharDriverState *chr)
1345 FDCharDriver *s = chr->opaque;
1349 fd = g_io_channel_unix_get_fd(s->fd_in);
1359 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1361 CharDriverState *chr;
1363 tty_serial_init(fd, 115200, 'N', 8, 1);
1364 chr = qemu_chr_open_fd(fd, fd);
1365 chr->chr_ioctl = tty_serial_ioctl;
1366 chr->chr_close = qemu_chr_close_tty;
1370 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1372 const char *filename = qemu_opt_get(opts, "path");
1375 TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
1379 return qemu_chr_open_tty_fd(fd);
1381 #endif /* __linux__ || __sun__ */
1383 #if defined(__linux__)
1385 #define HAVE_CHARDEV_PARPORT 1
1390 } ParallelCharDriver;
1392 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1394 if (s->mode != mode) {
1396 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1403 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1405 ParallelCharDriver *drv = chr->opaque;
1410 case CHR_IOCTL_PP_READ_DATA:
1411 if (ioctl(fd, PPRDATA, &b) < 0)
1413 *(uint8_t *)arg = b;
1415 case CHR_IOCTL_PP_WRITE_DATA:
1416 b = *(uint8_t *)arg;
1417 if (ioctl(fd, PPWDATA, &b) < 0)
1420 case CHR_IOCTL_PP_READ_CONTROL:
1421 if (ioctl(fd, PPRCONTROL, &b) < 0)
1423 /* Linux gives only the lowest bits, and no way to know data
1424 direction! For better compatibility set the fixed upper
1426 *(uint8_t *)arg = b | 0xc0;
1428 case CHR_IOCTL_PP_WRITE_CONTROL:
1429 b = *(uint8_t *)arg;
1430 if (ioctl(fd, PPWCONTROL, &b) < 0)
1433 case CHR_IOCTL_PP_READ_STATUS:
1434 if (ioctl(fd, PPRSTATUS, &b) < 0)
1436 *(uint8_t *)arg = b;
1438 case CHR_IOCTL_PP_DATA_DIR:
1439 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1442 case CHR_IOCTL_PP_EPP_READ_ADDR:
1443 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1444 struct ParallelIOArg *parg = arg;
1445 int n = read(fd, parg->buffer, parg->count);
1446 if (n != parg->count) {
1451 case CHR_IOCTL_PP_EPP_READ:
1452 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1453 struct ParallelIOArg *parg = arg;
1454 int n = read(fd, parg->buffer, parg->count);
1455 if (n != parg->count) {
1460 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1461 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1462 struct ParallelIOArg *parg = arg;
1463 int n = write(fd, parg->buffer, parg->count);
1464 if (n != parg->count) {
1469 case CHR_IOCTL_PP_EPP_WRITE:
1470 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1471 struct ParallelIOArg *parg = arg;
1472 int n = write(fd, parg->buffer, parg->count);
1473 if (n != parg->count) {
1484 static void pp_close(CharDriverState *chr)
1486 ParallelCharDriver *drv = chr->opaque;
1489 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1490 ioctl(fd, PPRELEASE);
1493 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1496 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1498 CharDriverState *chr;
1499 ParallelCharDriver *drv;
1501 if (ioctl(fd, PPCLAIM) < 0) {
1506 drv = g_malloc0(sizeof(ParallelCharDriver));
1508 drv->mode = IEEE1284_MODE_COMPAT;
1510 chr = g_malloc0(sizeof(CharDriverState));
1511 chr->chr_write = null_chr_write;
1512 chr->chr_ioctl = pp_ioctl;
1513 chr->chr_close = pp_close;
1516 qemu_chr_generic_open(chr);
1520 #endif /* __linux__ */
1522 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1524 #define HAVE_CHARDEV_PARPORT 1
1526 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1528 int fd = (int)(intptr_t)chr->opaque;
1532 case CHR_IOCTL_PP_READ_DATA:
1533 if (ioctl(fd, PPIGDATA, &b) < 0)
1535 *(uint8_t *)arg = b;
1537 case CHR_IOCTL_PP_WRITE_DATA:
1538 b = *(uint8_t *)arg;
1539 if (ioctl(fd, PPISDATA, &b) < 0)
1542 case CHR_IOCTL_PP_READ_CONTROL:
1543 if (ioctl(fd, PPIGCTRL, &b) < 0)
1545 *(uint8_t *)arg = b;
1547 case CHR_IOCTL_PP_WRITE_CONTROL:
1548 b = *(uint8_t *)arg;
1549 if (ioctl(fd, PPISCTRL, &b) < 0)
1552 case CHR_IOCTL_PP_READ_STATUS:
1553 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1555 *(uint8_t *)arg = b;
1563 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1565 CharDriverState *chr;
1567 chr = g_malloc0(sizeof(CharDriverState));
1568 chr->opaque = (void *)(intptr_t)fd;
1569 chr->chr_write = null_chr_write;
1570 chr->chr_ioctl = pp_ioctl;
1579 HANDLE hcom, hrecv, hsend;
1580 OVERLAPPED orecv, osend;
1587 HANDLE hInputReadyEvent;
1588 HANDLE hInputDoneEvent;
1589 HANDLE hInputThread;
1590 uint8_t win_stdio_buf;
1591 } WinStdioCharState;
1593 #define NSENDBUF 2048
1594 #define NRECVBUF 2048
1595 #define MAXCONNECT 1
1596 #define NTIMEOUT 5000
1598 static int win_chr_poll(void *opaque);
1599 static int win_chr_pipe_poll(void *opaque);
1601 static void win_chr_close(CharDriverState *chr)
1603 WinCharState *s = chr->opaque;
1606 CloseHandle(s->hsend);
1610 CloseHandle(s->hrecv);
1614 CloseHandle(s->hcom);
1618 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1620 qemu_del_polling_cb(win_chr_poll, chr);
1622 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1625 static int win_chr_init(CharDriverState *chr, const char *filename)
1627 WinCharState *s = chr->opaque;
1629 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1634 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1636 fprintf(stderr, "Failed CreateEvent\n");
1639 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1641 fprintf(stderr, "Failed CreateEvent\n");
1645 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1646 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1647 if (s->hcom == INVALID_HANDLE_VALUE) {
1648 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1653 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1654 fprintf(stderr, "Failed SetupComm\n");
1658 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1659 size = sizeof(COMMCONFIG);
1660 GetDefaultCommConfig(filename, &comcfg, &size);
1661 comcfg.dcb.DCBlength = sizeof(DCB);
1662 CommConfigDialog(filename, NULL, &comcfg);
1664 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1665 fprintf(stderr, "Failed SetCommState\n");
1669 if (!SetCommMask(s->hcom, EV_ERR)) {
1670 fprintf(stderr, "Failed SetCommMask\n");
1674 cto.ReadIntervalTimeout = MAXDWORD;
1675 if (!SetCommTimeouts(s->hcom, &cto)) {
1676 fprintf(stderr, "Failed SetCommTimeouts\n");
1680 if (!ClearCommError(s->hcom, &err, &comstat)) {
1681 fprintf(stderr, "Failed ClearCommError\n");
1684 qemu_add_polling_cb(win_chr_poll, chr);
1692 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1694 WinCharState *s = chr->opaque;
1695 DWORD len, ret, size, err;
1698 ZeroMemory(&s->osend, sizeof(s->osend));
1699 s->osend.hEvent = s->hsend;
1702 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1704 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1706 err = GetLastError();
1707 if (err == ERROR_IO_PENDING) {
1708 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1726 static int win_chr_read_poll(CharDriverState *chr)
1728 WinCharState *s = chr->opaque;
1730 s->max_size = qemu_chr_be_can_write(chr);
1734 static void win_chr_readfile(CharDriverState *chr)
1736 WinCharState *s = chr->opaque;
1738 uint8_t buf[READ_BUF_LEN];
1741 ZeroMemory(&s->orecv, sizeof(s->orecv));
1742 s->orecv.hEvent = s->hrecv;
1743 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1745 err = GetLastError();
1746 if (err == ERROR_IO_PENDING) {
1747 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1752 qemu_chr_be_write(chr, buf, size);
1756 static void win_chr_read(CharDriverState *chr)
1758 WinCharState *s = chr->opaque;
1760 if (s->len > s->max_size)
1761 s->len = s->max_size;
1765 win_chr_readfile(chr);
1768 static int win_chr_poll(void *opaque)
1770 CharDriverState *chr = opaque;
1771 WinCharState *s = chr->opaque;
1775 ClearCommError(s->hcom, &comerr, &status);
1776 if (status.cbInQue > 0) {
1777 s->len = status.cbInQue;
1778 win_chr_read_poll(chr);
1785 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1787 CharDriverState *chr;
1790 chr = g_malloc0(sizeof(CharDriverState));
1791 s = g_malloc0(sizeof(WinCharState));
1793 chr->chr_write = win_chr_write;
1794 chr->chr_close = win_chr_close;
1796 if (win_chr_init(chr, filename) < 0) {
1801 qemu_chr_generic_open(chr);
1805 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1807 return qemu_chr_open_win_path(qemu_opt_get(opts, "path"));
1810 static int win_chr_pipe_poll(void *opaque)
1812 CharDriverState *chr = opaque;
1813 WinCharState *s = chr->opaque;
1816 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1819 win_chr_read_poll(chr);
1826 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1828 WinCharState *s = chr->opaque;
1836 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1838 fprintf(stderr, "Failed CreateEvent\n");
1841 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1843 fprintf(stderr, "Failed CreateEvent\n");
1847 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1848 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1849 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1851 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1852 if (s->hcom == INVALID_HANDLE_VALUE) {
1853 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1858 ZeroMemory(&ov, sizeof(ov));
1859 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1860 ret = ConnectNamedPipe(s->hcom, &ov);
1862 fprintf(stderr, "Failed ConnectNamedPipe\n");
1866 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1868 fprintf(stderr, "Failed GetOverlappedResult\n");
1870 CloseHandle(ov.hEvent);
1877 CloseHandle(ov.hEvent);
1880 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1889 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1891 const char *filename = qemu_opt_get(opts, "path");
1892 CharDriverState *chr;
1895 chr = g_malloc0(sizeof(CharDriverState));
1896 s = g_malloc0(sizeof(WinCharState));
1898 chr->chr_write = win_chr_write;
1899 chr->chr_close = win_chr_close;
1901 if (win_chr_pipe_init(chr, filename) < 0) {
1906 qemu_chr_generic_open(chr);
1910 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1912 CharDriverState *chr;
1915 chr = g_malloc0(sizeof(CharDriverState));
1916 s = g_malloc0(sizeof(WinCharState));
1919 chr->chr_write = win_chr_write;
1920 qemu_chr_generic_open(chr);
1924 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1926 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1929 static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
1931 const char *file_out = qemu_opt_get(opts, "path");
1934 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1935 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1936 if (fd_out == INVALID_HANDLE_VALUE) {
1940 return qemu_chr_open_win_file(fd_out);
1943 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1945 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1952 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1962 static void win_stdio_wait_func(void *opaque)
1964 CharDriverState *chr = opaque;
1965 WinStdioCharState *stdio = chr->opaque;
1966 INPUT_RECORD buf[4];
1971 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1975 /* Avoid error storm */
1976 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1980 for (i = 0; i < dwSize; i++) {
1981 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
1983 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
1985 if (kev->uChar.AsciiChar != 0) {
1986 for (j = 0; j < kev->wRepeatCount; j++) {
1987 if (qemu_chr_be_can_write(chr)) {
1988 uint8_t c = kev->uChar.AsciiChar;
1989 qemu_chr_be_write(chr, &c, 1);
1997 static DWORD WINAPI win_stdio_thread(LPVOID param)
1999 CharDriverState *chr = param;
2000 WinStdioCharState *stdio = chr->opaque;
2006 /* Wait for one byte */
2007 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2009 /* Exit in case of error, continue if nothing read */
2017 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2018 if (stdio->win_stdio_buf == '\r') {
2022 /* Signal the main thread and wait until the byte was eaten */
2023 if (!SetEvent(stdio->hInputReadyEvent)) {
2026 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2032 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2036 static void win_stdio_thread_wait_func(void *opaque)
2038 CharDriverState *chr = opaque;
2039 WinStdioCharState *stdio = chr->opaque;
2041 if (qemu_chr_be_can_write(chr)) {
2042 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2045 SetEvent(stdio->hInputDoneEvent);
2048 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2050 WinStdioCharState *stdio = chr->opaque;
2053 GetConsoleMode(stdio->hStdIn, &dwMode);
2056 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2058 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2062 static void win_stdio_close(CharDriverState *chr)
2064 WinStdioCharState *stdio = chr->opaque;
2066 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2067 CloseHandle(stdio->hInputReadyEvent);
2069 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2070 CloseHandle(stdio->hInputDoneEvent);
2072 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2073 TerminateThread(stdio->hInputThread, 0);
2076 g_free(chr->opaque);
2080 static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
2082 CharDriverState *chr;
2083 WinStdioCharState *stdio;
2087 chr = g_malloc0(sizeof(CharDriverState));
2088 stdio = g_malloc0(sizeof(WinStdioCharState));
2090 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2091 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2092 fprintf(stderr, "cannot open stdio: invalid handle\n");
2096 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2098 chr->opaque = stdio;
2099 chr->chr_write = win_stdio_write;
2100 chr->chr_close = win_stdio_close;
2103 if (qemu_add_wait_object(stdio->hStdIn,
2104 win_stdio_wait_func, chr)) {
2105 fprintf(stderr, "qemu_add_wait_object: failed\n");
2110 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2111 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2112 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2115 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2116 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2117 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2118 fprintf(stderr, "cannot create stdio thread or event\n");
2121 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2122 win_stdio_thread_wait_func, chr)) {
2123 fprintf(stderr, "qemu_add_wait_object: failed\n");
2127 dwMode |= ENABLE_LINE_INPUT;
2130 /* set the terminal in raw mode */
2131 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2132 dwMode |= ENABLE_PROCESSED_INPUT;
2135 SetConsoleMode(stdio->hStdIn, dwMode);
2137 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2138 qemu_chr_fe_set_echo(chr, false);
2142 #endif /* !_WIN32 */
2144 /***********************************************************/
2145 /* UDP Net console */
2151 uint8_t buf[READ_BUF_LEN];
2157 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2159 NetCharDriver *s = chr->opaque;
2160 gsize bytes_written;
2163 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2164 if (status == G_IO_STATUS_EOF) {
2166 } else if (status != G_IO_STATUS_NORMAL) {
2170 return bytes_written;
2173 static int udp_chr_read_poll(void *opaque)
2175 CharDriverState *chr = opaque;
2176 NetCharDriver *s = chr->opaque;
2178 s->max_size = qemu_chr_be_can_write(chr);
2180 /* If there were any stray characters in the queue process them
2183 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2184 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2186 s->max_size = qemu_chr_be_can_write(chr);
2191 static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2193 CharDriverState *chr = opaque;
2194 NetCharDriver *s = chr->opaque;
2195 gsize bytes_read = 0;
2198 if (s->max_size == 0)
2200 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2202 s->bufcnt = bytes_read;
2203 s->bufptr = s->bufcnt;
2204 if (status != G_IO_STATUS_NORMAL) {
2209 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2210 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2212 s->max_size = qemu_chr_be_can_write(chr);
2218 static void udp_chr_update_read_handler(CharDriverState *chr)
2220 NetCharDriver *s = chr->opaque;
2223 g_source_remove(s->tag);
2228 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
2232 static void udp_chr_close(CharDriverState *chr)
2234 NetCharDriver *s = chr->opaque;
2236 g_source_remove(s->tag);
2239 g_io_channel_unref(s->chan);
2243 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2246 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2248 CharDriverState *chr = NULL;
2249 NetCharDriver *s = NULL;
2250 Error *local_err = NULL;
2253 chr = g_malloc0(sizeof(CharDriverState));
2254 s = g_malloc0(sizeof(NetCharDriver));
2256 fd = inet_dgram_opts(opts, &local_err);
2262 s->chan = io_channel_from_socket(s->fd);
2266 chr->chr_write = udp_chr_write;
2267 chr->chr_update_read_handler = udp_chr_update_read_handler;
2268 chr->chr_close = udp_chr_close;
2273 qerror_report_err(local_err);
2274 error_free(local_err);
2284 /***********************************************************/
2285 /* TCP Net console */
2289 GIOChannel *chan, *listen_chan;
2290 guint tag, listen_tag;
2300 static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
2302 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2304 TCPCharDriver *s = chr->opaque;
2306 return io_channel_send_all(s->chan, buf, len);
2308 /* XXX: indicate an error ? */
2313 static int tcp_chr_read_poll(void *opaque)
2315 CharDriverState *chr = opaque;
2316 TCPCharDriver *s = chr->opaque;
2319 s->max_size = qemu_chr_be_can_write(chr);
2324 #define IAC_BREAK 243
2325 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2327 uint8_t *buf, int *size)
2329 /* Handle any telnet client's basic IAC options to satisfy char by
2330 * char mode with no echo. All IAC options will be removed from
2331 * the buf and the do_telnetopt variable will be used to track the
2332 * state of the width of the IAC information.
2334 * IAC commands come in sets of 3 bytes with the exception of the
2335 * "IAC BREAK" command and the double IAC.
2341 for (i = 0; i < *size; i++) {
2342 if (s->do_telnetopt > 1) {
2343 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2344 /* Double IAC means send an IAC */
2348 s->do_telnetopt = 1;
2350 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2351 /* Handle IAC break commands by sending a serial break */
2352 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2357 if (s->do_telnetopt >= 4) {
2358 s->do_telnetopt = 1;
2361 if ((unsigned char)buf[i] == IAC) {
2362 s->do_telnetopt = 2;
2373 static int tcp_get_msgfd(CharDriverState *chr)
2375 TCPCharDriver *s = chr->opaque;
2382 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2384 TCPCharDriver *s = chr->opaque;
2385 struct cmsghdr *cmsg;
2387 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2390 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2391 cmsg->cmsg_level != SOL_SOCKET ||
2392 cmsg->cmsg_type != SCM_RIGHTS)
2395 fd = *((int *)CMSG_DATA(cmsg));
2399 #ifndef MSG_CMSG_CLOEXEC
2400 qemu_set_cloexec(fd);
2408 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2410 TCPCharDriver *s = chr->opaque;
2411 struct msghdr msg = { NULL, };
2412 struct iovec iov[1];
2414 struct cmsghdr cmsg;
2415 char control[CMSG_SPACE(sizeof(int))];
2420 iov[0].iov_base = buf;
2421 iov[0].iov_len = len;
2425 msg.msg_control = &msg_control;
2426 msg.msg_controllen = sizeof(msg_control);
2428 #ifdef MSG_CMSG_CLOEXEC
2429 flags |= MSG_CMSG_CLOEXEC;
2431 ret = recvmsg(s->fd, &msg, flags);
2432 if (ret > 0 && s->is_unix) {
2433 unix_process_msgfd(chr, &msg);
2439 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2441 TCPCharDriver *s = chr->opaque;
2442 return qemu_recv(s->fd, buf, len, 0);
2446 static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2448 CharDriverState *chr = opaque;
2449 TCPCharDriver *s = chr->opaque;
2450 uint8_t buf[READ_BUF_LEN];
2453 if (!s->connected || s->max_size <= 0) {
2457 if (len > s->max_size)
2459 size = tcp_chr_recv(chr, (void *)buf, len);
2461 /* connection closed */
2463 if (s->listen_chan) {
2464 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2466 g_source_remove(s->tag);
2468 g_io_channel_unref(s->chan);
2472 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2473 } else if (size > 0) {
2474 if (s->do_telnetopt)
2475 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2477 qemu_chr_be_write(chr, buf, size);
2484 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2486 return qemu_chr_open_fd(eventfd, eventfd);
2490 static void tcp_chr_connect(void *opaque)
2492 CharDriverState *chr = opaque;
2493 TCPCharDriver *s = chr->opaque;
2497 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
2499 qemu_chr_generic_open(chr);
2502 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2503 static void tcp_chr_telnet_init(int fd)
2506 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2507 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2508 send(fd, (char *)buf, 3, 0);
2509 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2510 send(fd, (char *)buf, 3, 0);
2511 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2512 send(fd, (char *)buf, 3, 0);
2513 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2514 send(fd, (char *)buf, 3, 0);
2517 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2519 TCPCharDriver *s = chr->opaque;
2523 socket_set_nonblock(fd);
2525 socket_set_nodelay(fd);
2527 s->chan = io_channel_from_socket(fd);
2528 g_source_remove(s->listen_tag);
2530 tcp_chr_connect(chr);
2535 static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
2537 CharDriverState *chr = opaque;
2538 TCPCharDriver *s = chr->opaque;
2539 struct sockaddr_in saddr;
2541 struct sockaddr_un uaddr;
2543 struct sockaddr *addr;
2550 len = sizeof(uaddr);
2551 addr = (struct sockaddr *)&uaddr;
2555 len = sizeof(saddr);
2556 addr = (struct sockaddr *)&saddr;
2558 fd = qemu_accept(s->listen_fd, addr, &len);
2559 if (fd < 0 && errno != EINTR) {
2561 } else if (fd >= 0) {
2562 if (s->do_telnetopt)
2563 tcp_chr_telnet_init(fd);
2567 if (tcp_chr_add_client(chr, fd) < 0)
2573 static void tcp_chr_close(CharDriverState *chr)
2575 TCPCharDriver *s = chr->opaque;
2578 g_source_remove(s->tag);
2581 g_io_channel_unref(s->chan);
2585 if (s->listen_fd >= 0) {
2586 if (s->listen_tag) {
2587 g_source_remove(s->listen_tag);
2589 if (s->listen_chan) {
2590 g_io_channel_unref(s->listen_chan);
2592 closesocket(s->listen_fd);
2595 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2598 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2599 bool is_listen, bool is_telnet,
2600 bool is_waitconnect,
2603 CharDriverState *chr = NULL;
2604 TCPCharDriver *s = NULL;
2605 char host[NI_MAXHOST], serv[NI_MAXSERV];
2606 const char *left = "", *right = "";
2607 struct sockaddr_storage ss;
2608 socklen_t ss_len = sizeof(ss);
2610 memset(&ss, 0, ss_len);
2611 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2612 error_setg(errp, "getsockname: %s", strerror(errno));
2616 chr = g_malloc0(sizeof(CharDriverState));
2617 s = g_malloc0(sizeof(TCPCharDriver));
2624 chr->filename = g_malloc(256);
2625 switch (ss.ss_family) {
2629 snprintf(chr->filename, 256, "unix:%s%s",
2630 ((struct sockaddr_un *)(&ss))->sun_path,
2631 is_listen ? ",server" : "");
2639 s->do_nodelay = do_nodelay;
2640 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2641 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2642 snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
2643 is_telnet ? "telnet" : "tcp",
2644 left, host, right, serv,
2645 is_listen ? ",server" : "");
2650 chr->chr_write = tcp_chr_write;
2651 chr->chr_close = tcp_chr_close;
2652 chr->get_msgfd = tcp_get_msgfd;
2653 chr->chr_add_client = tcp_chr_add_client;
2657 s->listen_chan = io_channel_from_socket(s->listen_fd);
2658 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2660 s->do_telnetopt = 1;
2665 socket_set_nodelay(fd);
2666 s->chan = io_channel_from_socket(s->fd);
2667 tcp_chr_connect(chr);
2670 if (is_listen && is_waitconnect) {
2671 printf("QEMU waiting for connection on: %s\n",
2673 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
2674 socket_set_nonblock(s->listen_fd);
2679 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2681 CharDriverState *chr = NULL;
2682 Error *local_err = NULL;
2690 is_listen = qemu_opt_get_bool(opts, "server", 0);
2691 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2692 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2693 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2694 is_unix = qemu_opt_get(opts, "path") != NULL;
2700 fd = unix_listen_opts(opts, &local_err);
2702 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2706 fd = inet_listen_opts(opts, 0, &local_err);
2708 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2715 if (!is_waitconnect)
2716 socket_set_nonblock(fd);
2718 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2719 is_waitconnect, &local_err);
2720 if (error_is_set(&local_err)) {
2728 qerror_report_err(local_err);
2729 error_free(local_err);
2735 g_free(chr->opaque);
2741 /***********************************************************/
2742 /* Memory chardev */
2745 size_t outbuf_capacity;
2749 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2751 MemoryDriver *d = chr->opaque;
2753 /* TODO: the QString implementation has the same code, we should
2754 * introduce a generic way to do this in cutils.c */
2755 if (d->outbuf_capacity < d->outbuf_size + len) {
2757 d->outbuf_capacity += len;
2758 d->outbuf_capacity *= 2;
2759 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2762 memcpy(d->outbuf + d->outbuf_size, buf, len);
2763 d->outbuf_size += len;
2768 void qemu_chr_init_mem(CharDriverState *chr)
2772 d = g_malloc(sizeof(*d));
2774 d->outbuf_capacity = 4096;
2775 d->outbuf = g_malloc0(d->outbuf_capacity);
2777 memset(chr, 0, sizeof(*chr));
2779 chr->chr_write = mem_chr_write;
2782 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2784 MemoryDriver *d = chr->opaque;
2785 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2788 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2789 void qemu_chr_close_mem(CharDriverState *chr)
2791 MemoryDriver *d = chr->opaque;
2794 g_free(chr->opaque);
2796 chr->chr_write = NULL;
2799 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2801 const MemoryDriver *d = chr->opaque;
2802 return d->outbuf_size;
2805 /*********************************************************/
2806 /* Ring buffer chardev */
2813 } RingBufCharDriver;
2815 static size_t ringbuf_count(const CharDriverState *chr)
2817 const RingBufCharDriver *d = chr->opaque;
2819 return d->prod - d->cons;
2822 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2824 RingBufCharDriver *d = chr->opaque;
2827 if (!buf || (len < 0)) {
2831 for (i = 0; i < len; i++ ) {
2832 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2833 if (d->prod - d->cons > d->size) {
2834 d->cons = d->prod - d->size;
2841 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2843 RingBufCharDriver *d = chr->opaque;
2846 for (i = 0; i < len && d->cons != d->prod; i++) {
2847 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2853 static void ringbuf_chr_close(struct CharDriverState *chr)
2855 RingBufCharDriver *d = chr->opaque;
2862 static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
2864 CharDriverState *chr;
2865 RingBufCharDriver *d;
2867 chr = g_malloc0(sizeof(CharDriverState));
2868 d = g_malloc(sizeof(*d));
2870 d->size = qemu_opt_get_size(opts, "size", 0);
2875 /* The size must be power of 2 */
2876 if (d->size & (d->size - 1)) {
2877 error_report("size of ringbuf device must be power of two");
2883 d->cbuf = g_malloc0(d->size);
2886 chr->chr_write = ringbuf_chr_write;
2887 chr->chr_close = ringbuf_chr_close;
2897 static bool chr_is_ringbuf(const CharDriverState *chr)
2899 return chr->chr_write == ringbuf_chr_write;
2902 void qmp_ringbuf_write(const char *device, const char *data,
2903 bool has_format, enum DataFormat format,
2906 CharDriverState *chr;
2907 const uint8_t *write_data;
2911 chr = qemu_chr_find(device);
2913 error_setg(errp, "Device '%s' not found", device);
2917 if (!chr_is_ringbuf(chr)) {
2918 error_setg(errp,"%s is not a ringbuf device", device);
2922 if (has_format && (format == DATA_FORMAT_BASE64)) {
2923 write_data = g_base64_decode(data, &write_count);
2925 write_data = (uint8_t *)data;
2926 write_count = strlen(data);
2929 ret = ringbuf_chr_write(chr, write_data, write_count);
2931 if (write_data != (uint8_t *)data) {
2932 g_free((void *)write_data);
2936 error_setg(errp, "Failed to write to device %s", device);
2941 char *qmp_ringbuf_read(const char *device, int64_t size,
2942 bool has_format, enum DataFormat format,
2945 CharDriverState *chr;
2950 chr = qemu_chr_find(device);
2952 error_setg(errp, "Device '%s' not found", device);
2956 if (!chr_is_ringbuf(chr)) {
2957 error_setg(errp,"%s is not a ringbuf device", device);
2962 error_setg(errp, "size must be greater than zero");
2966 count = ringbuf_count(chr);
2967 size = size > count ? count : size;
2968 read_data = g_malloc(size + 1);
2970 ringbuf_chr_read(chr, read_data, size);
2972 if (has_format && (format == DATA_FORMAT_BASE64)) {
2973 data = g_base64_encode(read_data, size);
2977 * FIXME should read only complete, valid UTF-8 characters up
2978 * to @size bytes. Invalid sequences should be replaced by a
2979 * suitable replacement character. Except when (and only
2980 * when) ring buffer lost characters since last read, initial
2981 * continuation characters should be dropped.
2983 read_data[size] = 0;
2984 data = (char *)read_data;
2990 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2992 char host[65], port[33], width[8], height[8];
2996 Error *local_err = NULL;
2998 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
2999 if (error_is_set(&local_err)) {
3000 qerror_report_err(local_err);
3001 error_free(local_err);
3005 if (strstart(filename, "mon:", &p)) {
3007 qemu_opt_set(opts, "mux", "on");
3010 if (strcmp(filename, "null") == 0 ||
3011 strcmp(filename, "pty") == 0 ||
3012 strcmp(filename, "msmouse") == 0 ||
3013 strcmp(filename, "braille") == 0 ||
3014 strcmp(filename, "stdio") == 0) {
3015 qemu_opt_set(opts, "backend", filename);
3018 if (strstart(filename, "vc", &p)) {
3019 qemu_opt_set(opts, "backend", "vc");
3021 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3023 qemu_opt_set(opts, "width", width);
3024 qemu_opt_set(opts, "height", height);
3025 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3027 qemu_opt_set(opts, "cols", width);
3028 qemu_opt_set(opts, "rows", height);
3035 if (strcmp(filename, "con:") == 0) {
3036 qemu_opt_set(opts, "backend", "console");
3039 if (strstart(filename, "COM", NULL)) {
3040 qemu_opt_set(opts, "backend", "serial");
3041 qemu_opt_set(opts, "path", filename);
3044 if (strstart(filename, "file:", &p)) {
3045 qemu_opt_set(opts, "backend", "file");
3046 qemu_opt_set(opts, "path", p);
3049 if (strstart(filename, "pipe:", &p)) {
3050 qemu_opt_set(opts, "backend", "pipe");
3051 qemu_opt_set(opts, "path", p);
3054 if (strstart(filename, "tcp:", &p) ||
3055 strstart(filename, "telnet:", &p)) {
3056 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3058 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3061 qemu_opt_set(opts, "backend", "socket");
3062 qemu_opt_set(opts, "host", host);
3063 qemu_opt_set(opts, "port", port);
3064 if (p[pos] == ',') {
3065 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3068 if (strstart(filename, "telnet:", &p))
3069 qemu_opt_set(opts, "telnet", "on");
3072 if (strstart(filename, "udp:", &p)) {
3073 qemu_opt_set(opts, "backend", "udp");
3074 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3076 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3080 qemu_opt_set(opts, "host", host);
3081 qemu_opt_set(opts, "port", port);
3082 if (p[pos] == '@') {
3084 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3086 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3090 qemu_opt_set(opts, "localaddr", host);
3091 qemu_opt_set(opts, "localport", port);
3095 if (strstart(filename, "unix:", &p)) {
3096 qemu_opt_set(opts, "backend", "socket");
3097 if (qemu_opts_do_parse(opts, p, "path") != 0)
3101 if (strstart(filename, "/dev/parport", NULL) ||
3102 strstart(filename, "/dev/ppi", NULL)) {
3103 qemu_opt_set(opts, "backend", "parport");
3104 qemu_opt_set(opts, "path", filename);
3107 if (strstart(filename, "/dev/", NULL)) {
3108 qemu_opt_set(opts, "backend", "tty");
3109 qemu_opt_set(opts, "path", filename);
3114 qemu_opts_del(opts);
3118 #ifdef HAVE_CHARDEV_PARPORT
3120 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
3122 const char *filename = qemu_opt_get(opts, "path");
3125 fd = qemu_open(filename, O_RDWR);
3129 return qemu_chr_open_pp_fd(fd);
3134 static const struct {
3136 CharDriverState *(*open)(QemuOpts *opts);
3137 } backend_table[] = {
3138 { .name = "null", .open = qemu_chr_open_null },
3139 { .name = "socket", .open = qemu_chr_open_socket },
3140 { .name = "udp", .open = qemu_chr_open_udp },
3141 { .name = "msmouse", .open = qemu_chr_open_msmouse },
3142 { .name = "vc", .open = vc_init },
3143 { .name = "memory", .open = qemu_chr_open_ringbuf },
3145 { .name = "file", .open = qemu_chr_open_win_file_out },
3146 { .name = "pipe", .open = qemu_chr_open_win_pipe },
3147 { .name = "console", .open = qemu_chr_open_win_con },
3148 { .name = "serial", .open = qemu_chr_open_win },
3149 { .name = "stdio", .open = qemu_chr_open_win_stdio },
3151 { .name = "file", .open = qemu_chr_open_file_out },
3152 { .name = "pipe", .open = qemu_chr_open_pipe },
3153 { .name = "stdio", .open = qemu_chr_open_stdio },
3155 #ifdef CONFIG_BRLAPI
3156 { .name = "braille", .open = chr_baum_init },
3158 #ifdef HAVE_CHARDEV_TTY
3159 { .name = "tty", .open = qemu_chr_open_tty },
3160 { .name = "serial", .open = qemu_chr_open_tty },
3161 { .name = "pty", .open = qemu_chr_open_pty },
3163 #ifdef HAVE_CHARDEV_PARPORT
3164 { .name = "parallel", .open = qemu_chr_open_pp },
3165 { .name = "parport", .open = qemu_chr_open_pp },
3168 { .name = "spicevmc", .open = qemu_chr_open_spice },
3169 #if SPICE_SERVER_VERSION >= 0x000c02
3170 { .name = "spiceport", .open = qemu_chr_open_spice_port },
3175 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3176 void (*init)(struct CharDriverState *s),
3179 CharDriverState *chr;
3182 if (qemu_opts_id(opts) == NULL) {
3183 error_setg(errp, "chardev: no id specified");
3187 if (qemu_opt_get(opts, "backend") == NULL) {
3188 error_setg(errp, "chardev: \"%s\" missing backend",
3189 qemu_opts_id(opts));
3192 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
3193 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
3196 if (i == ARRAY_SIZE(backend_table)) {
3197 error_setg(errp, "chardev: backend \"%s\" not found",
3198 qemu_opt_get(opts, "backend"));
3202 chr = backend_table[i].open(opts);
3204 error_setg(errp, "chardev: opening backend \"%s\" failed",
3205 qemu_opt_get(opts, "backend"));
3210 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3212 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3214 if (qemu_opt_get_bool(opts, "mux", 0)) {
3215 CharDriverState *base = chr;
3216 int len = strlen(qemu_opts_id(opts)) + 6;
3217 base->label = g_malloc(len);
3218 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3219 chr = qemu_chr_open_mux(base);
3220 chr->filename = base->filename;
3221 chr->avail_connections = MAX_MUX;
3222 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3224 chr->avail_connections = 1;
3226 chr->label = g_strdup(qemu_opts_id(opts));
3231 qemu_opts_del(opts);
3235 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3238 CharDriverState *chr;
3242 if (strstart(filename, "chardev:", &p)) {
3243 return qemu_chr_find(p);
3246 opts = qemu_chr_parse_compat(label, filename);
3250 chr = qemu_chr_new_from_opts(opts, init, &err);
3251 if (error_is_set(&err)) {
3252 fprintf(stderr, "%s\n", error_get_pretty(err));
3255 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3256 monitor_init(chr, MONITOR_USE_READLINE);
3261 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3263 if (chr->chr_set_echo) {
3264 chr->chr_set_echo(chr, echo);
3268 void qemu_chr_fe_open(struct CharDriverState *chr)
3270 if (chr->chr_guest_open) {
3271 chr->chr_guest_open(chr);
3275 void qemu_chr_fe_close(struct CharDriverState *chr)
3277 if (chr->chr_guest_close) {
3278 chr->chr_guest_close(chr);
3282 void qemu_chr_delete(CharDriverState *chr)
3284 QTAILQ_REMOVE(&chardevs, chr, next);
3285 if (chr->chr_close) {
3286 chr->chr_close(chr);
3288 g_free(chr->filename);
3291 qemu_opts_del(chr->opts);
3296 ChardevInfoList *qmp_query_chardev(Error **errp)
3298 ChardevInfoList *chr_list = NULL;
3299 CharDriverState *chr;
3301 QTAILQ_FOREACH(chr, &chardevs, next) {
3302 ChardevInfoList *info = g_malloc0(sizeof(*info));
3303 info->value = g_malloc0(sizeof(*info->value));
3304 info->value->label = g_strdup(chr->label);
3305 info->value->filename = g_strdup(chr->filename);
3307 info->next = chr_list;
3314 CharDriverState *qemu_chr_find(const char *name)
3316 CharDriverState *chr;
3318 QTAILQ_FOREACH(chr, &chardevs, next) {
3319 if (strcmp(chr->label, name) != 0)
3326 /* Get a character (serial) device interface. */
3327 CharDriverState *qemu_char_get_next_serial(void)
3329 static int next_serial;
3331 /* FIXME: This function needs to go away: use chardev properties! */
3332 return serial_hds[next_serial++];
3335 QemuOptsList qemu_chardev_opts = {
3337 .implied_opt_name = "backend",
3338 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3342 .type = QEMU_OPT_STRING,
3345 .type = QEMU_OPT_STRING,
3348 .type = QEMU_OPT_STRING,
3351 .type = QEMU_OPT_STRING,
3353 .name = "localaddr",
3354 .type = QEMU_OPT_STRING,
3356 .name = "localport",
3357 .type = QEMU_OPT_STRING,
3360 .type = QEMU_OPT_NUMBER,
3363 .type = QEMU_OPT_BOOL,
3366 .type = QEMU_OPT_BOOL,
3369 .type = QEMU_OPT_BOOL,
3372 .type = QEMU_OPT_BOOL,
3375 .type = QEMU_OPT_BOOL,
3378 .type = QEMU_OPT_BOOL,
3381 .type = QEMU_OPT_NUMBER,
3384 .type = QEMU_OPT_NUMBER,
3387 .type = QEMU_OPT_NUMBER,
3390 .type = QEMU_OPT_NUMBER,
3393 .type = QEMU_OPT_BOOL,
3396 .type = QEMU_OPT_BOOL,
3399 .type = QEMU_OPT_STRING,
3402 .type = QEMU_OPT_NUMBER,
3405 .type = QEMU_OPT_SIZE,
3407 { /* end of list */ }
3413 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3418 error_setg(errp, "input file not supported");
3422 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3423 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3424 if (out == INVALID_HANDLE_VALUE) {
3425 error_setg(errp, "open %s failed", file->out);
3428 return qemu_chr_open_win_file(out);
3431 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3434 return qemu_chr_open_win_path(serial->device);
3437 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3440 error_setg(errp, "character device backend type 'parallel' not supported");
3446 static int qmp_chardev_open_file_source(char *src, int flags,
3451 TFR(fd = qemu_open(src, flags, 0666));
3453 error_setg(errp, "open %s: %s", src, strerror(errno));
3458 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3460 int flags, in = -1, out = -1;
3462 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3463 out = qmp_chardev_open_file_source(file->out, flags, errp);
3464 if (error_is_set(errp)) {
3470 in = qmp_chardev_open_file_source(file->in, flags, errp);
3471 if (error_is_set(errp)) {
3477 return qemu_chr_open_fd(in, out);
3480 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3483 #ifdef HAVE_CHARDEV_TTY
3486 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3487 if (error_is_set(errp)) {
3490 socket_set_nonblock(fd);
3491 return qemu_chr_open_tty_fd(fd);
3493 error_setg(errp, "character device backend type 'serial' not supported");
3498 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3501 #ifdef HAVE_CHARDEV_PARPORT
3504 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3505 if (error_is_set(errp)) {
3508 return qemu_chr_open_pp_fd(fd);
3510 error_setg(errp, "character device backend type 'parallel' not supported");
3517 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3520 SocketAddress *addr = sock->addr;
3521 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3522 bool is_listen = sock->has_server ? sock->server : true;
3523 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3524 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3528 fd = socket_listen(addr, errp);
3530 fd = socket_connect(addr, errp, NULL, NULL);
3532 if (error_is_set(errp)) {
3535 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3536 is_telnet, is_waitconnect, errp);
3539 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3542 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3543 CharDriverState *chr = NULL;
3545 chr = qemu_chr_find(id);
3547 error_setg(errp, "Chardev '%s' already exists", id);
3552 switch (backend->kind) {
3553 case CHARDEV_BACKEND_KIND_FILE:
3554 chr = qmp_chardev_open_file(backend->file, errp);
3556 case CHARDEV_BACKEND_KIND_SERIAL:
3557 chr = qmp_chardev_open_serial(backend->serial, errp);
3559 case CHARDEV_BACKEND_KIND_PARALLEL:
3560 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3562 case CHARDEV_BACKEND_KIND_SOCKET:
3563 chr = qmp_chardev_open_socket(backend->socket, errp);
3565 #ifdef HAVE_CHARDEV_TTY
3566 case CHARDEV_BACKEND_KIND_PTY:
3568 /* qemu_chr_open_pty sets "path" in opts */
3570 opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
3571 chr = qemu_chr_open_pty(opts);
3572 ret->pty = g_strdup(qemu_opt_get(opts, "path"));
3573 ret->has_pty = true;
3574 qemu_opts_del(opts);
3578 case CHARDEV_BACKEND_KIND_NULL:
3579 chr = qemu_chr_open_null(NULL);
3582 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3586 if (chr == NULL && !error_is_set(errp)) {
3587 error_setg(errp, "Failed to create chardev");
3590 chr->label = g_strdup(id);
3591 chr->avail_connections = 1;
3592 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3600 void qmp_chardev_remove(const char *id, Error **errp)
3602 CharDriverState *chr;
3604 chr = qemu_chr_find(id);
3606 error_setg(errp, "Chardev '%s' not found", id);
3609 if (chr->chr_can_read || chr->chr_read ||
3610 chr->chr_event || chr->handler_opaque) {
3611 error_setg(errp, "Chardev '%s' is busy", id);
3614 qemu_chr_delete(chr);