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"
31 #include "qmp-commands.h"
41 #include <sys/times.h>
45 #include <sys/ioctl.h>
46 #include <sys/resource.h>
47 #include <sys/socket.h>
48 #include <netinet/in.h>
50 #include <arpa/inet.h>
53 #include <sys/select.h>
56 #if defined(__GLIBC__)
58 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
63 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
64 #include <dev/ppbus/ppi.h>
65 #include <dev/ppbus/ppbconf.h>
66 #elif defined(__DragonFly__)
67 #include <dev/misc/ppi/ppi.h>
68 #include <bus/ppbus/ppbconf.h>
74 #include <linux/ppdev.h>
75 #include <linux/parport.h>
79 #include <sys/ethernet.h>
80 #include <sys/sockio.h>
81 #include <netinet/arp.h>
82 #include <netinet/in.h>
83 #include <netinet/in_systm.h>
84 #include <netinet/ip.h>
85 #include <netinet/ip_icmp.h> // must come after ip.h
86 #include <netinet/udp.h>
87 #include <netinet/tcp.h>
95 #include "qemu/sockets.h"
96 #include "ui/qemu-spice.h"
98 #define READ_BUF_LEN 4096
100 /***********************************************************/
101 /* character device */
103 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
104 QTAILQ_HEAD_INITIALIZER(chardevs);
106 void qemu_chr_be_event(CharDriverState *s, int event)
108 /* Keep track if the char device is open */
110 case CHR_EVENT_OPENED:
113 case CHR_EVENT_CLOSED:
120 s->chr_event(s->handler_opaque, event);
123 static gboolean qemu_chr_generic_open_bh(gpointer opaque)
125 CharDriverState *s = opaque;
126 qemu_chr_be_event(s, CHR_EVENT_OPENED);
131 void qemu_chr_generic_open(CharDriverState *s)
133 if (s->idle_tag == 0) {
134 s->idle_tag = g_idle_add(qemu_chr_generic_open_bh, s);
138 int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
140 return s->chr_write(s, buf, len);
143 int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
147 return s->chr_ioctl(s, cmd, arg);
150 int qemu_chr_be_can_write(CharDriverState *s)
152 if (!s->chr_can_read)
154 return s->chr_can_read(s->handler_opaque);
157 void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
160 s->chr_read(s->handler_opaque, buf, len);
164 int qemu_chr_fe_get_msgfd(CharDriverState *s)
166 return s->get_msgfd ? s->get_msgfd(s) : -1;
169 int qemu_chr_add_client(CharDriverState *s, int fd)
171 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
174 void qemu_chr_accept_input(CharDriverState *s)
176 if (s->chr_accept_input)
177 s->chr_accept_input(s);
181 void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
183 char buf[READ_BUF_LEN];
186 vsnprintf(buf, sizeof(buf), fmt, ap);
187 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
191 void qemu_chr_add_handlers(CharDriverState *s,
192 IOCanReadHandler *fd_can_read,
193 IOReadHandler *fd_read,
194 IOEventHandler *fd_event,
197 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
198 /* chr driver being released. */
199 ++s->avail_connections;
201 s->chr_can_read = fd_can_read;
202 s->chr_read = fd_read;
203 s->chr_event = fd_event;
204 s->handler_opaque = opaque;
205 if (s->chr_update_read_handler)
206 s->chr_update_read_handler(s);
208 /* We're connecting to an already opened device, so let's make sure we
209 also get the open event */
211 qemu_chr_generic_open(s);
215 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
220 static CharDriverState *qemu_chr_open_null(void)
222 CharDriverState *chr;
224 chr = g_malloc0(sizeof(CharDriverState));
225 chr->chr_write = null_chr_write;
229 /* MUX driver for serial I/O splitting */
231 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
232 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
234 IOCanReadHandler *chr_can_read[MAX_MUX];
235 IOReadHandler *chr_read[MAX_MUX];
236 IOEventHandler *chr_event[MAX_MUX];
237 void *ext_opaque[MAX_MUX];
238 CharDriverState *drv;
243 /* Intermediate input buffer allows to catch escape sequences even if the
244 currently active device is not accepting any input - but only until it
246 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
251 int64_t timestamps_start;
255 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
257 MuxDriver *d = chr->opaque;
259 if (!d->timestamps) {
260 ret = d->drv->chr_write(d->drv, buf, len);
265 for (i = 0; i < len; i++) {
271 ti = qemu_get_clock_ms(rt_clock);
272 if (d->timestamps_start == -1)
273 d->timestamps_start = ti;
274 ti -= d->timestamps_start;
276 snprintf(buf1, sizeof(buf1),
277 "[%02d:%02d:%02d.%03d] ",
282 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
285 ret += d->drv->chr_write(d->drv, buf+i, 1);
286 if (buf[i] == '\n') {
294 static const char * const mux_help[] = {
295 "% h print this help\n\r",
296 "% x exit emulator\n\r",
297 "% s save disk data back to file (if -snapshot)\n\r",
298 "% t toggle console timestamps\n\r"
299 "% b send break (magic sysrq)\n\r",
300 "% c switch between console and monitor\n\r",
305 int term_escape_char = 0x01; /* ctrl-a is used for escape */
306 static void mux_print_help(CharDriverState *chr)
309 char ebuf[15] = "Escape-Char";
310 char cbuf[50] = "\n\r";
312 if (term_escape_char > 0 && term_escape_char < 26) {
313 snprintf(cbuf, sizeof(cbuf), "\n\r");
314 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
316 snprintf(cbuf, sizeof(cbuf),
317 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
320 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
321 for (i = 0; mux_help[i] != NULL; i++) {
322 for (j=0; mux_help[i][j] != '\0'; j++) {
323 if (mux_help[i][j] == '%')
324 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
326 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
331 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
333 if (d->chr_event[mux_nr])
334 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
337 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
339 if (d->term_got_escape) {
340 d->term_got_escape = 0;
341 if (ch == term_escape_char)
350 const char *term = "QEMU: Terminated\n\r";
351 chr->chr_write(chr,(uint8_t *)term,strlen(term));
359 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
362 /* Switch to the next registered device */
363 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
365 if (d->focus >= d->mux_cnt)
367 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
370 d->timestamps = !d->timestamps;
371 d->timestamps_start = -1;
375 } else if (ch == term_escape_char) {
376 d->term_got_escape = 1;
384 static void mux_chr_accept_input(CharDriverState *chr)
386 MuxDriver *d = chr->opaque;
389 while (d->prod[m] != d->cons[m] &&
390 d->chr_can_read[m] &&
391 d->chr_can_read[m](d->ext_opaque[m])) {
392 d->chr_read[m](d->ext_opaque[m],
393 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
397 static int mux_chr_can_read(void *opaque)
399 CharDriverState *chr = opaque;
400 MuxDriver *d = chr->opaque;
403 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
405 if (d->chr_can_read[m])
406 return d->chr_can_read[m](d->ext_opaque[m]);
410 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
412 CharDriverState *chr = opaque;
413 MuxDriver *d = chr->opaque;
417 mux_chr_accept_input (opaque);
419 for(i = 0; i < size; i++)
420 if (mux_proc_byte(chr, d, buf[i])) {
421 if (d->prod[m] == d->cons[m] &&
422 d->chr_can_read[m] &&
423 d->chr_can_read[m](d->ext_opaque[m]))
424 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
426 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
430 static void mux_chr_event(void *opaque, int event)
432 CharDriverState *chr = opaque;
433 MuxDriver *d = chr->opaque;
436 /* Send the event to all registered listeners */
437 for (i = 0; i < d->mux_cnt; i++)
438 mux_chr_send_event(d, i, event);
441 static void mux_chr_update_read_handler(CharDriverState *chr)
443 MuxDriver *d = chr->opaque;
445 if (d->mux_cnt >= MAX_MUX) {
446 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
449 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
450 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
451 d->chr_read[d->mux_cnt] = chr->chr_read;
452 d->chr_event[d->mux_cnt] = chr->chr_event;
453 /* Fix up the real driver with mux routines */
454 if (d->mux_cnt == 0) {
455 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
458 if (d->focus != -1) {
459 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
461 d->focus = d->mux_cnt;
463 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
466 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
468 CharDriverState *chr;
471 chr = g_malloc0(sizeof(CharDriverState));
472 d = g_malloc0(sizeof(MuxDriver));
477 chr->chr_write = mux_chr_write;
478 chr->chr_update_read_handler = mux_chr_update_read_handler;
479 chr->chr_accept_input = mux_chr_accept_input;
480 /* Frontend guest-open / -close notification is not support with muxes */
481 chr->chr_guest_open = NULL;
482 chr->chr_guest_close = NULL;
484 /* Muxes are always open on creation */
485 qemu_chr_generic_open(chr);
492 int send_all(int fd, const void *buf, int len1)
498 ret = send(fd, buf, len, 0);
500 errno = WSAGetLastError();
501 if (errno != WSAEWOULDBLOCK) {
504 } else if (ret == 0) {
516 int send_all(int fd, const void *_buf, int len1)
519 const uint8_t *buf = _buf;
523 ret = write(fd, buf, len);
525 if (errno != EINTR && errno != EAGAIN)
527 } else if (ret == 0) {
537 int recv_all(int fd, void *_buf, int len1, bool single_read)
543 while ((len > 0) && (ret = read(fd, buf, len)) != 0) {
545 if (errno != EINTR && errno != EAGAIN) {
562 typedef struct IOWatchPoll
567 IOCanReadHandler *fd_can_read;
570 QTAILQ_ENTRY(IOWatchPoll) node;
573 static QTAILQ_HEAD(, IOWatchPoll) io_watch_poll_list =
574 QTAILQ_HEAD_INITIALIZER(io_watch_poll_list);
576 static IOWatchPoll *io_watch_poll_from_source(GSource *source)
580 QTAILQ_FOREACH(i, &io_watch_poll_list, node) {
581 if (i->src == source) {
589 static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
591 IOWatchPoll *iwp = io_watch_poll_from_source(source);
593 iwp->max_size = iwp->fd_can_read(iwp->opaque);
594 if (iwp->max_size == 0) {
598 return g_io_watch_funcs.prepare(source, timeout_);
601 static gboolean io_watch_poll_check(GSource *source)
603 IOWatchPoll *iwp = io_watch_poll_from_source(source);
605 if (iwp->max_size == 0) {
609 return g_io_watch_funcs.check(source);
612 static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
615 return g_io_watch_funcs.dispatch(source, callback, user_data);
618 static void io_watch_poll_finalize(GSource *source)
620 IOWatchPoll *iwp = io_watch_poll_from_source(source);
621 QTAILQ_REMOVE(&io_watch_poll_list, iwp, node);
622 g_io_watch_funcs.finalize(source);
625 static GSourceFuncs io_watch_poll_funcs = {
626 .prepare = io_watch_poll_prepare,
627 .check = io_watch_poll_check,
628 .dispatch = io_watch_poll_dispatch,
629 .finalize = io_watch_poll_finalize,
632 /* Can only be used for read */
633 static guint io_add_watch_poll(GIOChannel *channel,
634 IOCanReadHandler *fd_can_read,
642 src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
643 g_source_set_funcs(src, &io_watch_poll_funcs);
644 g_source_set_callback(src, (GSourceFunc)fd_read, user_data, NULL);
645 tag = g_source_attach(src, NULL);
648 iwp = g_malloc0(sizeof(*iwp));
651 iwp->fd_can_read = fd_can_read;
652 iwp->opaque = user_data;
654 QTAILQ_INSERT_HEAD(&io_watch_poll_list, iwp, node);
660 static GIOChannel *io_channel_from_fd(int fd)
668 chan = g_io_channel_unix_new(fd);
670 g_io_channel_set_encoding(chan, NULL, NULL);
671 g_io_channel_set_buffered(chan, FALSE);
677 static GIOChannel *io_channel_from_socket(int fd)
686 chan = g_io_channel_win32_new_socket(fd);
688 chan = g_io_channel_unix_new(fd);
691 g_io_channel_set_encoding(chan, NULL, NULL);
692 g_io_channel_set_buffered(chan, FALSE);
697 static int io_channel_send_all(GIOChannel *fd, const void *_buf, int len1)
702 const uint8_t *buf = _buf;
706 status = g_io_channel_write_chars(fd, (const gchar *)buf, len,
707 &bytes_written, NULL);
708 if (status != G_IO_STATUS_NORMAL) {
709 if (status == G_IO_STATUS_AGAIN) {
716 } else if (status == G_IO_STATUS_EOF) {
719 buf += bytes_written;
720 len -= bytes_written;
728 typedef struct FDCharDriver {
729 CharDriverState *chr;
730 GIOChannel *fd_in, *fd_out;
733 QTAILQ_ENTRY(FDCharDriver) node;
736 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
738 FDCharDriver *s = chr->opaque;
740 return io_channel_send_all(s->fd_out, buf, len);
743 static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
745 CharDriverState *chr = opaque;
746 FDCharDriver *s = chr->opaque;
748 uint8_t buf[READ_BUF_LEN];
753 if (len > s->max_size) {
760 status = g_io_channel_read_chars(chan, (gchar *)buf,
761 len, &bytes_read, NULL);
762 if (status == G_IO_STATUS_EOF) {
763 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
766 if (status == G_IO_STATUS_NORMAL) {
767 qemu_chr_be_write(chr, buf, bytes_read);
773 static int fd_chr_read_poll(void *opaque)
775 CharDriverState *chr = opaque;
776 FDCharDriver *s = chr->opaque;
778 s->max_size = qemu_chr_be_can_write(chr);
782 static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
784 FDCharDriver *s = chr->opaque;
785 return g_io_create_watch(s->fd_out, cond);
788 static void fd_chr_update_read_handler(CharDriverState *chr)
790 FDCharDriver *s = chr->opaque;
793 g_source_remove(s->fd_in_tag);
797 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
801 static void fd_chr_close(struct CharDriverState *chr)
803 FDCharDriver *s = chr->opaque;
806 g_source_remove(s->fd_in_tag);
811 g_io_channel_unref(s->fd_in);
814 g_io_channel_unref(s->fd_out);
818 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
821 /* open a character device to a unix fd */
822 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
824 CharDriverState *chr;
827 chr = g_malloc0(sizeof(CharDriverState));
828 s = g_malloc0(sizeof(FDCharDriver));
829 s->fd_in = io_channel_from_fd(fd_in);
830 s->fd_out = io_channel_from_fd(fd_out);
831 fcntl(fd_out, F_SETFL, O_NONBLOCK);
834 chr->chr_add_watch = fd_chr_add_watch;
835 chr->chr_write = fd_chr_write;
836 chr->chr_update_read_handler = fd_chr_update_read_handler;
837 chr->chr_close = fd_chr_close;
839 qemu_chr_generic_open(chr);
844 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
847 char filename_in[256], filename_out[256];
848 const char *filename = qemu_opt_get(opts, "path");
850 if (filename == NULL) {
851 fprintf(stderr, "chardev: pipe: no filename given\n");
855 snprintf(filename_in, 256, "%s.in", filename);
856 snprintf(filename_out, 256, "%s.out", filename);
857 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
858 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
859 if (fd_in < 0 || fd_out < 0) {
864 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
869 return qemu_chr_open_fd(fd_in, fd_out);
872 /* init terminal so that we can grab keys */
873 static struct termios oldtty;
874 static int old_fd0_flags;
875 static bool stdio_allow_signal;
877 static void term_exit(void)
879 tcsetattr (0, TCSANOW, &oldtty);
880 fcntl(0, F_SETFL, old_fd0_flags);
883 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
889 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
890 |INLCR|IGNCR|ICRNL|IXON);
891 tty.c_oflag |= OPOST;
892 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
893 tty.c_cflag &= ~(CSIZE|PARENB);
898 /* if graphical mode, we allow Ctrl-C handling */
899 if (!stdio_allow_signal)
900 tty.c_lflag &= ~ISIG;
902 tcsetattr (0, TCSANOW, &tty);
905 static void qemu_chr_close_stdio(struct CharDriverState *chr)
911 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
913 CharDriverState *chr;
915 if (is_daemonized()) {
916 error_report("cannot use stdio with -daemonize");
919 old_fd0_flags = fcntl(0, F_GETFL);
920 tcgetattr (0, &oldtty);
921 fcntl(0, F_SETFL, O_NONBLOCK);
924 chr = qemu_chr_open_fd(0, 1);
925 chr->chr_close = qemu_chr_close_stdio;
926 chr->chr_set_echo = qemu_chr_set_echo_stdio;
927 stdio_allow_signal = display_type != DT_NOGRAPHIC;
928 if (opts->has_signal) {
929 stdio_allow_signal = opts->signal;
931 qemu_chr_fe_set_echo(chr, false);
937 /* Once Solaris has openpty(), this is going to be removed. */
938 static int openpty(int *amaster, int *aslave, char *name,
939 struct termios *termp, struct winsize *winp)
942 int mfd = -1, sfd = -1;
944 *amaster = *aslave = -1;
946 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
950 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
953 if ((slave = ptsname(mfd)) == NULL)
956 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
959 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
960 (termp != NULL && tcgetattr(sfd, termp) < 0))
968 ioctl(sfd, TIOCSWINSZ, winp);
979 static void cfmakeraw (struct termios *termios_p)
981 termios_p->c_iflag &=
982 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
983 termios_p->c_oflag &= ~OPOST;
984 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
985 termios_p->c_cflag &= ~(CSIZE|PARENB);
986 termios_p->c_cflag |= CS8;
988 termios_p->c_cc[VMIN] = 0;
989 termios_p->c_cc[VTIME] = 0;
993 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
994 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
995 || defined(__GLIBC__)
997 #define HAVE_CHARDEV_TTY 1
1008 static void pty_chr_update_read_handler(CharDriverState *chr);
1009 static void pty_chr_state(CharDriverState *chr, int connected);
1011 static gboolean pty_chr_timer(gpointer opaque)
1013 struct CharDriverState *chr = opaque;
1014 PtyCharDriver *s = chr->opaque;
1020 /* If we arrive here without polling being cleared due
1021 * read returning -EIO, then we are (re-)connected */
1022 pty_chr_state(chr, 1);
1027 pty_chr_update_read_handler(chr);
1033 static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1035 PtyCharDriver *s = chr->opaque;
1038 g_source_remove(s->timer_tag);
1043 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1045 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1049 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1051 PtyCharDriver *s = chr->opaque;
1053 if (!s->connected) {
1054 /* guest sends data, check for (re-)connect */
1055 pty_chr_update_read_handler(chr);
1058 return io_channel_send_all(s->fd, buf, len);
1061 static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1063 PtyCharDriver *s = chr->opaque;
1064 return g_io_create_watch(s->fd, cond);
1067 static int pty_chr_read_poll(void *opaque)
1069 CharDriverState *chr = opaque;
1070 PtyCharDriver *s = chr->opaque;
1072 s->read_bytes = qemu_chr_be_can_write(chr);
1073 return s->read_bytes;
1076 static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
1078 CharDriverState *chr = opaque;
1079 PtyCharDriver *s = chr->opaque;
1081 uint8_t buf[READ_BUF_LEN];
1085 if (len > s->read_bytes)
1086 len = s->read_bytes;
1089 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1090 if (status != G_IO_STATUS_NORMAL) {
1091 pty_chr_state(chr, 0);
1094 pty_chr_state(chr, 1);
1095 qemu_chr_be_write(chr, buf, size);
1100 static void pty_chr_update_read_handler(CharDriverState *chr)
1102 PtyCharDriver *s = chr->opaque;
1105 g_source_remove(s->fd_tag);
1108 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
1111 * Short timeout here: just need wait long enougth that qemu makes
1112 * it through the poll loop once. When reconnected we want a
1113 * short timeout so we notice it almost instantly. Otherwise
1114 * read() gives us -EIO instantly, making pty_chr_state() reset the
1115 * timeout to the normal (much longer) poll interval before the
1118 pty_chr_rearm_timer(chr, 10);
1121 static void pty_chr_state(CharDriverState *chr, int connected)
1123 PtyCharDriver *s = chr->opaque;
1126 g_source_remove(s->fd_tag);
1130 /* (re-)connect poll interval for idle guests: once per second.
1131 * We check more frequently in case the guests sends data to
1132 * the virtual device linked to our pty. */
1133 pty_chr_rearm_timer(chr, 1000);
1136 qemu_chr_generic_open(chr);
1142 static void pty_chr_close(struct CharDriverState *chr)
1144 PtyCharDriver *s = chr->opaque;
1148 g_source_remove(s->fd_tag);
1150 fd = g_io_channel_unix_get_fd(s->fd);
1151 g_io_channel_unref(s->fd);
1154 g_source_remove(s->timer_tag);
1157 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1160 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
1162 CharDriverState *chr;
1166 int master_fd, slave_fd, len;
1167 #if defined(__OpenBSD__) || defined(__DragonFly__)
1168 char pty_name[PATH_MAX];
1169 #define q_ptsname(x) pty_name
1171 char *pty_name = NULL;
1172 #define q_ptsname(x) ptsname(x)
1175 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1179 /* Set raw attributes on the pty. */
1180 tcgetattr(slave_fd, &tty);
1182 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1185 chr = g_malloc0(sizeof(CharDriverState));
1187 len = strlen(q_ptsname(master_fd)) + 5;
1188 chr->filename = g_malloc(len);
1189 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1190 qemu_opt_set(opts, "path", q_ptsname(master_fd));
1192 label = qemu_opts_id(opts);
1193 fprintf(stderr, "char device redirected to %s%s%s%s\n",
1194 q_ptsname(master_fd),
1195 label ? " (label " : "",
1199 s = g_malloc0(sizeof(PtyCharDriver));
1201 chr->chr_write = pty_chr_write;
1202 chr->chr_update_read_handler = pty_chr_update_read_handler;
1203 chr->chr_close = pty_chr_close;
1204 chr->chr_add_watch = pty_chr_add_watch;
1206 s->fd = io_channel_from_fd(master_fd);
1212 static void tty_serial_init(int fd, int speed,
1213 int parity, int data_bits, int stop_bits)
1219 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1220 speed, parity, data_bits, stop_bits);
1222 tcgetattr (fd, &tty);
1224 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1225 speed = speed * 10 / 11;
1242 /* Non-Posix values follow. They may be unsupported on some systems. */
1244 check_speed(115200);
1246 check_speed(230400);
1249 check_speed(460800);
1252 check_speed(500000);
1255 check_speed(576000);
1258 check_speed(921600);
1261 check_speed(1000000);
1264 check_speed(1152000);
1267 check_speed(1500000);
1270 check_speed(2000000);
1273 check_speed(2500000);
1276 check_speed(3000000);
1279 check_speed(3500000);
1282 check_speed(4000000);
1287 cfsetispeed(&tty, spd);
1288 cfsetospeed(&tty, spd);
1290 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1291 |INLCR|IGNCR|ICRNL|IXON);
1292 tty.c_oflag |= OPOST;
1293 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1294 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1315 tty.c_cflag |= PARENB;
1318 tty.c_cflag |= PARENB | PARODD;
1322 tty.c_cflag |= CSTOPB;
1324 tcsetattr (fd, TCSANOW, &tty);
1327 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1329 FDCharDriver *s = chr->opaque;
1332 case CHR_IOCTL_SERIAL_SET_PARAMS:
1334 QEMUSerialSetParams *ssp = arg;
1335 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1336 ssp->speed, ssp->parity,
1337 ssp->data_bits, ssp->stop_bits);
1340 case CHR_IOCTL_SERIAL_SET_BREAK:
1342 int enable = *(int *)arg;
1344 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1348 case CHR_IOCTL_SERIAL_GET_TIOCM:
1351 int *targ = (int *)arg;
1352 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1354 if (sarg & TIOCM_CTS)
1355 *targ |= CHR_TIOCM_CTS;
1356 if (sarg & TIOCM_CAR)
1357 *targ |= CHR_TIOCM_CAR;
1358 if (sarg & TIOCM_DSR)
1359 *targ |= CHR_TIOCM_DSR;
1360 if (sarg & TIOCM_RI)
1361 *targ |= CHR_TIOCM_RI;
1362 if (sarg & TIOCM_DTR)
1363 *targ |= CHR_TIOCM_DTR;
1364 if (sarg & TIOCM_RTS)
1365 *targ |= CHR_TIOCM_RTS;
1368 case CHR_IOCTL_SERIAL_SET_TIOCM:
1370 int sarg = *(int *)arg;
1372 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1373 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1374 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1375 if (sarg & CHR_TIOCM_CTS)
1377 if (sarg & CHR_TIOCM_CAR)
1379 if (sarg & CHR_TIOCM_DSR)
1381 if (sarg & CHR_TIOCM_RI)
1383 if (sarg & CHR_TIOCM_DTR)
1385 if (sarg & CHR_TIOCM_RTS)
1387 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1396 static void qemu_chr_close_tty(CharDriverState *chr)
1398 FDCharDriver *s = chr->opaque;
1402 fd = g_io_channel_unix_get_fd(s->fd_in);
1412 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1414 CharDriverState *chr;
1416 tty_serial_init(fd, 115200, 'N', 8, 1);
1417 chr = qemu_chr_open_fd(fd, fd);
1418 chr->chr_ioctl = tty_serial_ioctl;
1419 chr->chr_close = qemu_chr_close_tty;
1422 #endif /* __linux__ || __sun__ */
1424 #if defined(__linux__)
1426 #define HAVE_CHARDEV_PARPORT 1
1431 } ParallelCharDriver;
1433 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1435 if (s->mode != mode) {
1437 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1444 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1446 ParallelCharDriver *drv = chr->opaque;
1451 case CHR_IOCTL_PP_READ_DATA:
1452 if (ioctl(fd, PPRDATA, &b) < 0)
1454 *(uint8_t *)arg = b;
1456 case CHR_IOCTL_PP_WRITE_DATA:
1457 b = *(uint8_t *)arg;
1458 if (ioctl(fd, PPWDATA, &b) < 0)
1461 case CHR_IOCTL_PP_READ_CONTROL:
1462 if (ioctl(fd, PPRCONTROL, &b) < 0)
1464 /* Linux gives only the lowest bits, and no way to know data
1465 direction! For better compatibility set the fixed upper
1467 *(uint8_t *)arg = b | 0xc0;
1469 case CHR_IOCTL_PP_WRITE_CONTROL:
1470 b = *(uint8_t *)arg;
1471 if (ioctl(fd, PPWCONTROL, &b) < 0)
1474 case CHR_IOCTL_PP_READ_STATUS:
1475 if (ioctl(fd, PPRSTATUS, &b) < 0)
1477 *(uint8_t *)arg = b;
1479 case CHR_IOCTL_PP_DATA_DIR:
1480 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1483 case CHR_IOCTL_PP_EPP_READ_ADDR:
1484 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1485 struct ParallelIOArg *parg = arg;
1486 int n = read(fd, parg->buffer, parg->count);
1487 if (n != parg->count) {
1492 case CHR_IOCTL_PP_EPP_READ:
1493 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1494 struct ParallelIOArg *parg = arg;
1495 int n = read(fd, parg->buffer, parg->count);
1496 if (n != parg->count) {
1501 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1502 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1503 struct ParallelIOArg *parg = arg;
1504 int n = write(fd, parg->buffer, parg->count);
1505 if (n != parg->count) {
1510 case CHR_IOCTL_PP_EPP_WRITE:
1511 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1512 struct ParallelIOArg *parg = arg;
1513 int n = write(fd, parg->buffer, parg->count);
1514 if (n != parg->count) {
1525 static void pp_close(CharDriverState *chr)
1527 ParallelCharDriver *drv = chr->opaque;
1530 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1531 ioctl(fd, PPRELEASE);
1534 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1537 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1539 CharDriverState *chr;
1540 ParallelCharDriver *drv;
1542 if (ioctl(fd, PPCLAIM) < 0) {
1547 drv = g_malloc0(sizeof(ParallelCharDriver));
1549 drv->mode = IEEE1284_MODE_COMPAT;
1551 chr = g_malloc0(sizeof(CharDriverState));
1552 chr->chr_write = null_chr_write;
1553 chr->chr_ioctl = pp_ioctl;
1554 chr->chr_close = pp_close;
1557 qemu_chr_generic_open(chr);
1561 #endif /* __linux__ */
1563 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1565 #define HAVE_CHARDEV_PARPORT 1
1567 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1569 int fd = (int)(intptr_t)chr->opaque;
1573 case CHR_IOCTL_PP_READ_DATA:
1574 if (ioctl(fd, PPIGDATA, &b) < 0)
1576 *(uint8_t *)arg = b;
1578 case CHR_IOCTL_PP_WRITE_DATA:
1579 b = *(uint8_t *)arg;
1580 if (ioctl(fd, PPISDATA, &b) < 0)
1583 case CHR_IOCTL_PP_READ_CONTROL:
1584 if (ioctl(fd, PPIGCTRL, &b) < 0)
1586 *(uint8_t *)arg = b;
1588 case CHR_IOCTL_PP_WRITE_CONTROL:
1589 b = *(uint8_t *)arg;
1590 if (ioctl(fd, PPISCTRL, &b) < 0)
1593 case CHR_IOCTL_PP_READ_STATUS:
1594 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1596 *(uint8_t *)arg = b;
1604 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1606 CharDriverState *chr;
1608 chr = g_malloc0(sizeof(CharDriverState));
1609 chr->opaque = (void *)(intptr_t)fd;
1610 chr->chr_write = null_chr_write;
1611 chr->chr_ioctl = pp_ioctl;
1620 HANDLE hcom, hrecv, hsend;
1621 OVERLAPPED orecv, osend;
1628 HANDLE hInputReadyEvent;
1629 HANDLE hInputDoneEvent;
1630 HANDLE hInputThread;
1631 uint8_t win_stdio_buf;
1632 } WinStdioCharState;
1634 #define NSENDBUF 2048
1635 #define NRECVBUF 2048
1636 #define MAXCONNECT 1
1637 #define NTIMEOUT 5000
1639 static int win_chr_poll(void *opaque);
1640 static int win_chr_pipe_poll(void *opaque);
1642 static void win_chr_close(CharDriverState *chr)
1644 WinCharState *s = chr->opaque;
1647 CloseHandle(s->hsend);
1651 CloseHandle(s->hrecv);
1655 CloseHandle(s->hcom);
1659 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1661 qemu_del_polling_cb(win_chr_poll, chr);
1663 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1666 static int win_chr_init(CharDriverState *chr, const char *filename)
1668 WinCharState *s = chr->opaque;
1670 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1675 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1677 fprintf(stderr, "Failed CreateEvent\n");
1680 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1682 fprintf(stderr, "Failed CreateEvent\n");
1686 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1687 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1688 if (s->hcom == INVALID_HANDLE_VALUE) {
1689 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1694 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1695 fprintf(stderr, "Failed SetupComm\n");
1699 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1700 size = sizeof(COMMCONFIG);
1701 GetDefaultCommConfig(filename, &comcfg, &size);
1702 comcfg.dcb.DCBlength = sizeof(DCB);
1703 CommConfigDialog(filename, NULL, &comcfg);
1705 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1706 fprintf(stderr, "Failed SetCommState\n");
1710 if (!SetCommMask(s->hcom, EV_ERR)) {
1711 fprintf(stderr, "Failed SetCommMask\n");
1715 cto.ReadIntervalTimeout = MAXDWORD;
1716 if (!SetCommTimeouts(s->hcom, &cto)) {
1717 fprintf(stderr, "Failed SetCommTimeouts\n");
1721 if (!ClearCommError(s->hcom, &err, &comstat)) {
1722 fprintf(stderr, "Failed ClearCommError\n");
1725 qemu_add_polling_cb(win_chr_poll, chr);
1733 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1735 WinCharState *s = chr->opaque;
1736 DWORD len, ret, size, err;
1739 ZeroMemory(&s->osend, sizeof(s->osend));
1740 s->osend.hEvent = s->hsend;
1743 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1745 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1747 err = GetLastError();
1748 if (err == ERROR_IO_PENDING) {
1749 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1767 static int win_chr_read_poll(CharDriverState *chr)
1769 WinCharState *s = chr->opaque;
1771 s->max_size = qemu_chr_be_can_write(chr);
1775 static void win_chr_readfile(CharDriverState *chr)
1777 WinCharState *s = chr->opaque;
1779 uint8_t buf[READ_BUF_LEN];
1782 ZeroMemory(&s->orecv, sizeof(s->orecv));
1783 s->orecv.hEvent = s->hrecv;
1784 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1786 err = GetLastError();
1787 if (err == ERROR_IO_PENDING) {
1788 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1793 qemu_chr_be_write(chr, buf, size);
1797 static void win_chr_read(CharDriverState *chr)
1799 WinCharState *s = chr->opaque;
1801 if (s->len > s->max_size)
1802 s->len = s->max_size;
1806 win_chr_readfile(chr);
1809 static int win_chr_poll(void *opaque)
1811 CharDriverState *chr = opaque;
1812 WinCharState *s = chr->opaque;
1816 ClearCommError(s->hcom, &comerr, &status);
1817 if (status.cbInQue > 0) {
1818 s->len = status.cbInQue;
1819 win_chr_read_poll(chr);
1826 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1828 CharDriverState *chr;
1831 chr = g_malloc0(sizeof(CharDriverState));
1832 s = g_malloc0(sizeof(WinCharState));
1834 chr->chr_write = win_chr_write;
1835 chr->chr_close = win_chr_close;
1837 if (win_chr_init(chr, filename) < 0) {
1842 qemu_chr_generic_open(chr);
1846 static int win_chr_pipe_poll(void *opaque)
1848 CharDriverState *chr = opaque;
1849 WinCharState *s = chr->opaque;
1852 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1855 win_chr_read_poll(chr);
1862 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1864 WinCharState *s = chr->opaque;
1872 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1874 fprintf(stderr, "Failed CreateEvent\n");
1877 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1879 fprintf(stderr, "Failed CreateEvent\n");
1883 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1884 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1885 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1887 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1888 if (s->hcom == INVALID_HANDLE_VALUE) {
1889 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1894 ZeroMemory(&ov, sizeof(ov));
1895 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1896 ret = ConnectNamedPipe(s->hcom, &ov);
1898 fprintf(stderr, "Failed ConnectNamedPipe\n");
1902 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1904 fprintf(stderr, "Failed GetOverlappedResult\n");
1906 CloseHandle(ov.hEvent);
1913 CloseHandle(ov.hEvent);
1916 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1925 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1927 const char *filename = qemu_opt_get(opts, "path");
1928 CharDriverState *chr;
1931 chr = g_malloc0(sizeof(CharDriverState));
1932 s = g_malloc0(sizeof(WinCharState));
1934 chr->chr_write = win_chr_write;
1935 chr->chr_close = win_chr_close;
1937 if (win_chr_pipe_init(chr, filename) < 0) {
1942 qemu_chr_generic_open(chr);
1946 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1948 CharDriverState *chr;
1951 chr = g_malloc0(sizeof(CharDriverState));
1952 s = g_malloc0(sizeof(WinCharState));
1955 chr->chr_write = win_chr_write;
1956 qemu_chr_generic_open(chr);
1960 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1962 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1965 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1967 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1974 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1984 static void win_stdio_wait_func(void *opaque)
1986 CharDriverState *chr = opaque;
1987 WinStdioCharState *stdio = chr->opaque;
1988 INPUT_RECORD buf[4];
1993 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1997 /* Avoid error storm */
1998 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
2002 for (i = 0; i < dwSize; i++) {
2003 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2005 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2007 if (kev->uChar.AsciiChar != 0) {
2008 for (j = 0; j < kev->wRepeatCount; j++) {
2009 if (qemu_chr_be_can_write(chr)) {
2010 uint8_t c = kev->uChar.AsciiChar;
2011 qemu_chr_be_write(chr, &c, 1);
2019 static DWORD WINAPI win_stdio_thread(LPVOID param)
2021 CharDriverState *chr = param;
2022 WinStdioCharState *stdio = chr->opaque;
2028 /* Wait for one byte */
2029 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2031 /* Exit in case of error, continue if nothing read */
2039 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2040 if (stdio->win_stdio_buf == '\r') {
2044 /* Signal the main thread and wait until the byte was eaten */
2045 if (!SetEvent(stdio->hInputReadyEvent)) {
2048 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2054 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2058 static void win_stdio_thread_wait_func(void *opaque)
2060 CharDriverState *chr = opaque;
2061 WinStdioCharState *stdio = chr->opaque;
2063 if (qemu_chr_be_can_write(chr)) {
2064 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2067 SetEvent(stdio->hInputDoneEvent);
2070 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2072 WinStdioCharState *stdio = chr->opaque;
2075 GetConsoleMode(stdio->hStdIn, &dwMode);
2078 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2080 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2084 static void win_stdio_close(CharDriverState *chr)
2086 WinStdioCharState *stdio = chr->opaque;
2088 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2089 CloseHandle(stdio->hInputReadyEvent);
2091 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2092 CloseHandle(stdio->hInputDoneEvent);
2094 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2095 TerminateThread(stdio->hInputThread, 0);
2098 g_free(chr->opaque);
2102 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
2104 CharDriverState *chr;
2105 WinStdioCharState *stdio;
2109 chr = g_malloc0(sizeof(CharDriverState));
2110 stdio = g_malloc0(sizeof(WinStdioCharState));
2112 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2113 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2114 fprintf(stderr, "cannot open stdio: invalid handle\n");
2118 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2120 chr->opaque = stdio;
2121 chr->chr_write = win_stdio_write;
2122 chr->chr_close = win_stdio_close;
2125 if (qemu_add_wait_object(stdio->hStdIn,
2126 win_stdio_wait_func, chr)) {
2127 fprintf(stderr, "qemu_add_wait_object: failed\n");
2132 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2133 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2134 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2137 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2138 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2139 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2140 fprintf(stderr, "cannot create stdio thread or event\n");
2143 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2144 win_stdio_thread_wait_func, chr)) {
2145 fprintf(stderr, "qemu_add_wait_object: failed\n");
2149 dwMode |= ENABLE_LINE_INPUT;
2152 /* set the terminal in raw mode */
2153 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2154 dwMode |= ENABLE_PROCESSED_INPUT;
2157 SetConsoleMode(stdio->hStdIn, dwMode);
2159 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2160 qemu_chr_fe_set_echo(chr, false);
2164 #endif /* !_WIN32 */
2167 /***********************************************************/
2168 /* UDP Net console */
2174 uint8_t buf[READ_BUF_LEN];
2180 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2182 NetCharDriver *s = chr->opaque;
2183 gsize bytes_written;
2186 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2187 if (status == G_IO_STATUS_EOF) {
2189 } else if (status != G_IO_STATUS_NORMAL) {
2193 return bytes_written;
2196 static int udp_chr_read_poll(void *opaque)
2198 CharDriverState *chr = opaque;
2199 NetCharDriver *s = chr->opaque;
2201 s->max_size = qemu_chr_be_can_write(chr);
2203 /* If there were any stray characters in the queue process them
2206 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2207 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2209 s->max_size = qemu_chr_be_can_write(chr);
2214 static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2216 CharDriverState *chr = opaque;
2217 NetCharDriver *s = chr->opaque;
2218 gsize bytes_read = 0;
2221 if (s->max_size == 0)
2223 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2225 s->bufcnt = bytes_read;
2226 s->bufptr = s->bufcnt;
2227 if (status != G_IO_STATUS_NORMAL) {
2232 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2233 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2235 s->max_size = qemu_chr_be_can_write(chr);
2241 static void udp_chr_update_read_handler(CharDriverState *chr)
2243 NetCharDriver *s = chr->opaque;
2246 g_source_remove(s->tag);
2251 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
2255 static void udp_chr_close(CharDriverState *chr)
2257 NetCharDriver *s = chr->opaque;
2259 g_source_remove(s->tag);
2262 g_io_channel_unref(s->chan);
2266 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2269 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2271 CharDriverState *chr = NULL;
2272 NetCharDriver *s = NULL;
2273 Error *local_err = NULL;
2276 chr = g_malloc0(sizeof(CharDriverState));
2277 s = g_malloc0(sizeof(NetCharDriver));
2279 fd = inet_dgram_opts(opts, &local_err);
2285 s->chan = io_channel_from_socket(s->fd);
2289 chr->chr_write = udp_chr_write;
2290 chr->chr_update_read_handler = udp_chr_update_read_handler;
2291 chr->chr_close = udp_chr_close;
2296 qerror_report_err(local_err);
2297 error_free(local_err);
2307 /***********************************************************/
2308 /* TCP Net console */
2312 GIOChannel *chan, *listen_chan;
2313 guint tag, listen_tag;
2323 static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
2325 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2327 TCPCharDriver *s = chr->opaque;
2329 return io_channel_send_all(s->chan, buf, len);
2331 /* XXX: indicate an error ? */
2336 static int tcp_chr_read_poll(void *opaque)
2338 CharDriverState *chr = opaque;
2339 TCPCharDriver *s = chr->opaque;
2342 s->max_size = qemu_chr_be_can_write(chr);
2347 #define IAC_BREAK 243
2348 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2350 uint8_t *buf, int *size)
2352 /* Handle any telnet client's basic IAC options to satisfy char by
2353 * char mode with no echo. All IAC options will be removed from
2354 * the buf and the do_telnetopt variable will be used to track the
2355 * state of the width of the IAC information.
2357 * IAC commands come in sets of 3 bytes with the exception of the
2358 * "IAC BREAK" command and the double IAC.
2364 for (i = 0; i < *size; i++) {
2365 if (s->do_telnetopt > 1) {
2366 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2367 /* Double IAC means send an IAC */
2371 s->do_telnetopt = 1;
2373 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2374 /* Handle IAC break commands by sending a serial break */
2375 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2380 if (s->do_telnetopt >= 4) {
2381 s->do_telnetopt = 1;
2384 if ((unsigned char)buf[i] == IAC) {
2385 s->do_telnetopt = 2;
2396 static int tcp_get_msgfd(CharDriverState *chr)
2398 TCPCharDriver *s = chr->opaque;
2405 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2407 TCPCharDriver *s = chr->opaque;
2408 struct cmsghdr *cmsg;
2410 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2413 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2414 cmsg->cmsg_level != SOL_SOCKET ||
2415 cmsg->cmsg_type != SCM_RIGHTS)
2418 fd = *((int *)CMSG_DATA(cmsg));
2422 #ifndef MSG_CMSG_CLOEXEC
2423 qemu_set_cloexec(fd);
2431 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2433 TCPCharDriver *s = chr->opaque;
2434 struct msghdr msg = { NULL, };
2435 struct iovec iov[1];
2437 struct cmsghdr cmsg;
2438 char control[CMSG_SPACE(sizeof(int))];
2443 iov[0].iov_base = buf;
2444 iov[0].iov_len = len;
2448 msg.msg_control = &msg_control;
2449 msg.msg_controllen = sizeof(msg_control);
2451 #ifdef MSG_CMSG_CLOEXEC
2452 flags |= MSG_CMSG_CLOEXEC;
2454 ret = recvmsg(s->fd, &msg, flags);
2455 if (ret > 0 && s->is_unix) {
2456 unix_process_msgfd(chr, &msg);
2462 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2464 TCPCharDriver *s = chr->opaque;
2465 return qemu_recv(s->fd, buf, len, 0);
2469 static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2471 TCPCharDriver *s = chr->opaque;
2472 return g_io_create_watch(s->chan, cond);
2475 static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2477 CharDriverState *chr = opaque;
2478 TCPCharDriver *s = chr->opaque;
2479 uint8_t buf[READ_BUF_LEN];
2482 if (!s->connected || s->max_size <= 0) {
2486 if (len > s->max_size)
2488 size = tcp_chr_recv(chr, (void *)buf, len);
2490 /* connection closed */
2492 if (s->listen_chan) {
2493 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2495 g_source_remove(s->tag);
2497 g_io_channel_unref(s->chan);
2501 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2502 } else if (size > 0) {
2503 if (s->do_telnetopt)
2504 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2506 qemu_chr_be_write(chr, buf, size);
2513 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2515 return qemu_chr_open_fd(eventfd, eventfd);
2519 static void tcp_chr_connect(void *opaque)
2521 CharDriverState *chr = opaque;
2522 TCPCharDriver *s = chr->opaque;
2526 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
2528 qemu_chr_generic_open(chr);
2531 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2532 static void tcp_chr_telnet_init(int fd)
2535 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2536 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2537 send(fd, (char *)buf, 3, 0);
2538 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2539 send(fd, (char *)buf, 3, 0);
2540 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2541 send(fd, (char *)buf, 3, 0);
2542 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2543 send(fd, (char *)buf, 3, 0);
2546 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2548 TCPCharDriver *s = chr->opaque;
2552 socket_set_nonblock(fd);
2554 socket_set_nodelay(fd);
2556 s->chan = io_channel_from_socket(fd);
2557 g_source_remove(s->listen_tag);
2559 tcp_chr_connect(chr);
2564 static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
2566 CharDriverState *chr = opaque;
2567 TCPCharDriver *s = chr->opaque;
2568 struct sockaddr_in saddr;
2570 struct sockaddr_un uaddr;
2572 struct sockaddr *addr;
2579 len = sizeof(uaddr);
2580 addr = (struct sockaddr *)&uaddr;
2584 len = sizeof(saddr);
2585 addr = (struct sockaddr *)&saddr;
2587 fd = qemu_accept(s->listen_fd, addr, &len);
2588 if (fd < 0 && errno != EINTR) {
2590 } else if (fd >= 0) {
2591 if (s->do_telnetopt)
2592 tcp_chr_telnet_init(fd);
2596 if (tcp_chr_add_client(chr, fd) < 0)
2602 static void tcp_chr_close(CharDriverState *chr)
2604 TCPCharDriver *s = chr->opaque;
2607 g_source_remove(s->tag);
2610 g_io_channel_unref(s->chan);
2614 if (s->listen_fd >= 0) {
2615 if (s->listen_tag) {
2616 g_source_remove(s->listen_tag);
2618 if (s->listen_chan) {
2619 g_io_channel_unref(s->listen_chan);
2621 closesocket(s->listen_fd);
2624 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2627 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2628 bool is_listen, bool is_telnet,
2629 bool is_waitconnect,
2632 CharDriverState *chr = NULL;
2633 TCPCharDriver *s = NULL;
2634 char host[NI_MAXHOST], serv[NI_MAXSERV];
2635 const char *left = "", *right = "";
2636 struct sockaddr_storage ss;
2637 socklen_t ss_len = sizeof(ss);
2639 memset(&ss, 0, ss_len);
2640 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2641 error_setg(errp, "getsockname: %s", strerror(errno));
2645 chr = g_malloc0(sizeof(CharDriverState));
2646 s = g_malloc0(sizeof(TCPCharDriver));
2653 chr->filename = g_malloc(256);
2654 switch (ss.ss_family) {
2658 snprintf(chr->filename, 256, "unix:%s%s",
2659 ((struct sockaddr_un *)(&ss))->sun_path,
2660 is_listen ? ",server" : "");
2668 s->do_nodelay = do_nodelay;
2669 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2670 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2671 snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
2672 is_telnet ? "telnet" : "tcp",
2673 left, host, right, serv,
2674 is_listen ? ",server" : "");
2679 chr->chr_write = tcp_chr_write;
2680 chr->chr_close = tcp_chr_close;
2681 chr->get_msgfd = tcp_get_msgfd;
2682 chr->chr_add_client = tcp_chr_add_client;
2683 chr->chr_add_watch = tcp_chr_add_watch;
2687 s->listen_chan = io_channel_from_socket(s->listen_fd);
2688 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2690 s->do_telnetopt = 1;
2695 socket_set_nodelay(fd);
2696 s->chan = io_channel_from_socket(s->fd);
2697 tcp_chr_connect(chr);
2700 if (is_listen && is_waitconnect) {
2701 printf("QEMU waiting for connection on: %s\n",
2703 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
2704 socket_set_nonblock(s->listen_fd);
2709 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2711 CharDriverState *chr = NULL;
2712 Error *local_err = NULL;
2720 is_listen = qemu_opt_get_bool(opts, "server", 0);
2721 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2722 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2723 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2724 is_unix = qemu_opt_get(opts, "path") != NULL;
2730 fd = unix_listen_opts(opts, &local_err);
2732 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2736 fd = inet_listen_opts(opts, 0, &local_err);
2738 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2745 if (!is_waitconnect)
2746 socket_set_nonblock(fd);
2748 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2749 is_waitconnect, &local_err);
2750 if (error_is_set(&local_err)) {
2758 qerror_report_err(local_err);
2759 error_free(local_err);
2765 g_free(chr->opaque);
2771 /***********************************************************/
2772 /* Memory chardev */
2775 size_t outbuf_capacity;
2779 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2781 MemoryDriver *d = chr->opaque;
2783 /* TODO: the QString implementation has the same code, we should
2784 * introduce a generic way to do this in cutils.c */
2785 if (d->outbuf_capacity < d->outbuf_size + len) {
2787 d->outbuf_capacity += len;
2788 d->outbuf_capacity *= 2;
2789 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2792 memcpy(d->outbuf + d->outbuf_size, buf, len);
2793 d->outbuf_size += len;
2798 void qemu_chr_init_mem(CharDriverState *chr)
2802 d = g_malloc(sizeof(*d));
2804 d->outbuf_capacity = 4096;
2805 d->outbuf = g_malloc0(d->outbuf_capacity);
2807 memset(chr, 0, sizeof(*chr));
2809 chr->chr_write = mem_chr_write;
2812 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2814 MemoryDriver *d = chr->opaque;
2815 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2818 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2819 void qemu_chr_close_mem(CharDriverState *chr)
2821 MemoryDriver *d = chr->opaque;
2824 g_free(chr->opaque);
2826 chr->chr_write = NULL;
2829 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2831 const MemoryDriver *d = chr->opaque;
2832 return d->outbuf_size;
2835 /*********************************************************/
2836 /* Ring buffer chardev */
2843 } RingBufCharDriver;
2845 static size_t ringbuf_count(const CharDriverState *chr)
2847 const RingBufCharDriver *d = chr->opaque;
2849 return d->prod - d->cons;
2852 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2854 RingBufCharDriver *d = chr->opaque;
2857 if (!buf || (len < 0)) {
2861 for (i = 0; i < len; i++ ) {
2862 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2863 if (d->prod - d->cons > d->size) {
2864 d->cons = d->prod - d->size;
2871 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2873 RingBufCharDriver *d = chr->opaque;
2876 for (i = 0; i < len && d->cons != d->prod; i++) {
2877 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2883 static void ringbuf_chr_close(struct CharDriverState *chr)
2885 RingBufCharDriver *d = chr->opaque;
2892 static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
2894 CharDriverState *chr;
2895 RingBufCharDriver *d;
2897 chr = g_malloc0(sizeof(CharDriverState));
2898 d = g_malloc(sizeof(*d));
2900 d->size = qemu_opt_get_size(opts, "size", 0);
2905 /* The size must be power of 2 */
2906 if (d->size & (d->size - 1)) {
2907 error_report("size of ringbuf device must be power of two");
2913 d->cbuf = g_malloc0(d->size);
2916 chr->chr_write = ringbuf_chr_write;
2917 chr->chr_close = ringbuf_chr_close;
2927 static bool chr_is_ringbuf(const CharDriverState *chr)
2929 return chr->chr_write == ringbuf_chr_write;
2932 void qmp_ringbuf_write(const char *device, const char *data,
2933 bool has_format, enum DataFormat format,
2936 CharDriverState *chr;
2937 const uint8_t *write_data;
2941 chr = qemu_chr_find(device);
2943 error_setg(errp, "Device '%s' not found", device);
2947 if (!chr_is_ringbuf(chr)) {
2948 error_setg(errp,"%s is not a ringbuf device", device);
2952 if (has_format && (format == DATA_FORMAT_BASE64)) {
2953 write_data = g_base64_decode(data, &write_count);
2955 write_data = (uint8_t *)data;
2956 write_count = strlen(data);
2959 ret = ringbuf_chr_write(chr, write_data, write_count);
2961 if (write_data != (uint8_t *)data) {
2962 g_free((void *)write_data);
2966 error_setg(errp, "Failed to write to device %s", device);
2971 char *qmp_ringbuf_read(const char *device, int64_t size,
2972 bool has_format, enum DataFormat format,
2975 CharDriverState *chr;
2980 chr = qemu_chr_find(device);
2982 error_setg(errp, "Device '%s' not found", device);
2986 if (!chr_is_ringbuf(chr)) {
2987 error_setg(errp,"%s is not a ringbuf device", device);
2992 error_setg(errp, "size must be greater than zero");
2996 count = ringbuf_count(chr);
2997 size = size > count ? count : size;
2998 read_data = g_malloc(size + 1);
3000 ringbuf_chr_read(chr, read_data, size);
3002 if (has_format && (format == DATA_FORMAT_BASE64)) {
3003 data = g_base64_encode(read_data, size);
3007 * FIXME should read only complete, valid UTF-8 characters up
3008 * to @size bytes. Invalid sequences should be replaced by a
3009 * suitable replacement character. Except when (and only
3010 * when) ring buffer lost characters since last read, initial
3011 * continuation characters should be dropped.
3013 read_data[size] = 0;
3014 data = (char *)read_data;
3020 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
3022 char host[65], port[33], width[8], height[8];
3026 Error *local_err = NULL;
3028 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
3029 if (error_is_set(&local_err)) {
3030 qerror_report_err(local_err);
3031 error_free(local_err);
3035 if (strstart(filename, "mon:", &p)) {
3037 qemu_opt_set(opts, "mux", "on");
3040 if (strcmp(filename, "null") == 0 ||
3041 strcmp(filename, "pty") == 0 ||
3042 strcmp(filename, "msmouse") == 0 ||
3043 strcmp(filename, "braille") == 0 ||
3044 strcmp(filename, "stdio") == 0) {
3045 qemu_opt_set(opts, "backend", filename);
3048 if (strstart(filename, "vc", &p)) {
3049 qemu_opt_set(opts, "backend", "vc");
3051 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3053 qemu_opt_set(opts, "width", width);
3054 qemu_opt_set(opts, "height", height);
3055 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3057 qemu_opt_set(opts, "cols", width);
3058 qemu_opt_set(opts, "rows", height);
3065 if (strcmp(filename, "con:") == 0) {
3066 qemu_opt_set(opts, "backend", "console");
3069 if (strstart(filename, "COM", NULL)) {
3070 qemu_opt_set(opts, "backend", "serial");
3071 qemu_opt_set(opts, "path", filename);
3074 if (strstart(filename, "file:", &p)) {
3075 qemu_opt_set(opts, "backend", "file");
3076 qemu_opt_set(opts, "path", p);
3079 if (strstart(filename, "pipe:", &p)) {
3080 qemu_opt_set(opts, "backend", "pipe");
3081 qemu_opt_set(opts, "path", p);
3084 if (strstart(filename, "tcp:", &p) ||
3085 strstart(filename, "telnet:", &p)) {
3086 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3088 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3091 qemu_opt_set(opts, "backend", "socket");
3092 qemu_opt_set(opts, "host", host);
3093 qemu_opt_set(opts, "port", port);
3094 if (p[pos] == ',') {
3095 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3098 if (strstart(filename, "telnet:", &p))
3099 qemu_opt_set(opts, "telnet", "on");
3102 if (strstart(filename, "udp:", &p)) {
3103 qemu_opt_set(opts, "backend", "udp");
3104 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3106 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3110 qemu_opt_set(opts, "host", host);
3111 qemu_opt_set(opts, "port", port);
3112 if (p[pos] == '@') {
3114 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3116 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3120 qemu_opt_set(opts, "localaddr", host);
3121 qemu_opt_set(opts, "localport", port);
3125 if (strstart(filename, "unix:", &p)) {
3126 qemu_opt_set(opts, "backend", "socket");
3127 if (qemu_opts_do_parse(opts, p, "path") != 0)
3131 if (strstart(filename, "/dev/parport", NULL) ||
3132 strstart(filename, "/dev/ppi", NULL)) {
3133 qemu_opt_set(opts, "backend", "parport");
3134 qemu_opt_set(opts, "path", filename);
3137 if (strstart(filename, "/dev/", NULL)) {
3138 qemu_opt_set(opts, "backend", "tty");
3139 qemu_opt_set(opts, "path", filename);
3144 qemu_opts_del(opts);
3148 static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3151 const char *path = qemu_opt_get(opts, "path");
3154 error_setg(errp, "chardev: file: no filename given");
3157 backend->file = g_new0(ChardevFile, 1);
3158 backend->file->out = g_strdup(path);
3161 static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3164 backend->stdio = g_new0(ChardevStdio, 1);
3165 backend->stdio->has_signal = true;
3166 backend->stdio->signal =
3167 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3170 static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3173 const char *device = qemu_opt_get(opts, "path");
3175 if (device == NULL) {
3176 error_setg(errp, "chardev: serial/tty: no device path given");
3179 backend->serial = g_new0(ChardevHostdev, 1);
3180 backend->serial->device = g_strdup(device);
3183 static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3186 const char *device = qemu_opt_get(opts, "path");
3188 if (device == NULL) {
3189 error_setg(errp, "chardev: parallel: no device path given");
3192 backend->parallel = g_new0(ChardevHostdev, 1);
3193 backend->parallel->device = g_strdup(device);
3196 typedef struct CharDriver {
3199 CharDriverState *(*open)(QemuOpts *opts);
3200 /* new, qapi-based */
3202 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
3205 static GSList *backends;
3207 void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3211 s = g_malloc0(sizeof(*s));
3212 s->name = g_strdup(name);
3215 backends = g_slist_append(backends, s);
3218 void register_char_driver_qapi(const char *name, int kind,
3219 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3223 s = g_malloc0(sizeof(*s));
3224 s->name = g_strdup(name);
3228 backends = g_slist_append(backends, s);
3231 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3232 void (*init)(struct CharDriverState *s),
3236 CharDriverState *chr;
3239 if (qemu_opts_id(opts) == NULL) {
3240 error_setg(errp, "chardev: no id specified");
3244 if (qemu_opt_get(opts, "backend") == NULL) {
3245 error_setg(errp, "chardev: \"%s\" missing backend",
3246 qemu_opts_id(opts));
3249 for (i = backends; i; i = i->next) {
3252 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
3257 error_setg(errp, "chardev: backend \"%s\" not found",
3258 qemu_opt_get(opts, "backend"));
3263 /* using new, qapi init */
3264 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3265 ChardevReturn *ret = NULL;
3266 const char *id = qemu_opts_id(opts);
3267 const char *bid = NULL;
3269 if (qemu_opt_get_bool(opts, "mux", 0)) {
3270 bid = g_strdup_printf("%s-base", id);
3274 backend->kind = cd->kind;
3276 cd->parse(opts, backend, errp);
3277 if (error_is_set(errp)) {
3281 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
3282 if (error_is_set(errp)) {
3287 qapi_free_ChardevBackend(backend);
3288 qapi_free_ChardevReturn(ret);
3289 backend = g_new0(ChardevBackend, 1);
3290 backend->mux = g_new0(ChardevMux, 1);
3291 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3292 backend->mux->chardev = g_strdup(bid);
3293 ret = qmp_chardev_add(id, backend, errp);
3294 if (error_is_set(errp)) {
3299 chr = qemu_chr_find(id);
3302 qapi_free_ChardevBackend(backend);
3303 qapi_free_ChardevReturn(ret);
3307 chr = cd->open(opts);
3309 error_setg(errp, "chardev: opening backend \"%s\" failed",
3310 qemu_opt_get(opts, "backend"));
3315 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3317 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3319 if (qemu_opt_get_bool(opts, "mux", 0)) {
3320 CharDriverState *base = chr;
3321 int len = strlen(qemu_opts_id(opts)) + 6;
3322 base->label = g_malloc(len);
3323 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3324 chr = qemu_chr_open_mux(base);
3325 chr->filename = base->filename;
3326 chr->avail_connections = MAX_MUX;
3327 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3329 chr->avail_connections = 1;
3331 chr->label = g_strdup(qemu_opts_id(opts));
3336 qemu_opts_del(opts);
3340 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3343 CharDriverState *chr;
3347 if (strstart(filename, "chardev:", &p)) {
3348 return qemu_chr_find(p);
3351 opts = qemu_chr_parse_compat(label, filename);
3355 chr = qemu_chr_new_from_opts(opts, init, &err);
3356 if (error_is_set(&err)) {
3357 fprintf(stderr, "%s\n", error_get_pretty(err));
3360 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3361 monitor_init(chr, MONITOR_USE_READLINE);
3366 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3368 if (chr->chr_set_echo) {
3369 chr->chr_set_echo(chr, echo);
3373 void qemu_chr_fe_open(struct CharDriverState *chr)
3375 if (chr->chr_guest_open) {
3376 chr->chr_guest_open(chr);
3380 void qemu_chr_fe_close(struct CharDriverState *chr)
3382 if (chr->chr_guest_close) {
3383 chr->chr_guest_close(chr);
3387 guint qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3388 GIOFunc func, void *user_data)
3393 if (s->chr_add_watch == NULL) {
3397 src = s->chr_add_watch(s, cond);
3398 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3399 tag = g_source_attach(src, NULL);
3400 g_source_unref(src);
3405 void qemu_chr_delete(CharDriverState *chr)
3407 QTAILQ_REMOVE(&chardevs, chr, next);
3408 if (chr->chr_close) {
3409 chr->chr_close(chr);
3411 g_free(chr->filename);
3414 qemu_opts_del(chr->opts);
3419 ChardevInfoList *qmp_query_chardev(Error **errp)
3421 ChardevInfoList *chr_list = NULL;
3422 CharDriverState *chr;
3424 QTAILQ_FOREACH(chr, &chardevs, next) {
3425 ChardevInfoList *info = g_malloc0(sizeof(*info));
3426 info->value = g_malloc0(sizeof(*info->value));
3427 info->value->label = g_strdup(chr->label);
3428 info->value->filename = g_strdup(chr->filename);
3430 info->next = chr_list;
3437 CharDriverState *qemu_chr_find(const char *name)
3439 CharDriverState *chr;
3441 QTAILQ_FOREACH(chr, &chardevs, next) {
3442 if (strcmp(chr->label, name) != 0)
3449 /* Get a character (serial) device interface. */
3450 CharDriverState *qemu_char_get_next_serial(void)
3452 static int next_serial;
3454 /* FIXME: This function needs to go away: use chardev properties! */
3455 return serial_hds[next_serial++];
3458 QemuOptsList qemu_chardev_opts = {
3460 .implied_opt_name = "backend",
3461 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3465 .type = QEMU_OPT_STRING,
3468 .type = QEMU_OPT_STRING,
3471 .type = QEMU_OPT_STRING,
3474 .type = QEMU_OPT_STRING,
3476 .name = "localaddr",
3477 .type = QEMU_OPT_STRING,
3479 .name = "localport",
3480 .type = QEMU_OPT_STRING,
3483 .type = QEMU_OPT_NUMBER,
3486 .type = QEMU_OPT_BOOL,
3489 .type = QEMU_OPT_BOOL,
3492 .type = QEMU_OPT_BOOL,
3495 .type = QEMU_OPT_BOOL,
3498 .type = QEMU_OPT_BOOL,
3501 .type = QEMU_OPT_BOOL,
3504 .type = QEMU_OPT_NUMBER,
3507 .type = QEMU_OPT_NUMBER,
3510 .type = QEMU_OPT_NUMBER,
3513 .type = QEMU_OPT_NUMBER,
3516 .type = QEMU_OPT_BOOL,
3519 .type = QEMU_OPT_BOOL,
3522 .type = QEMU_OPT_STRING,
3525 .type = QEMU_OPT_NUMBER,
3528 .type = QEMU_OPT_SIZE,
3530 { /* end of list */ }
3536 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3541 error_setg(errp, "input file not supported");
3545 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3546 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3547 if (out == INVALID_HANDLE_VALUE) {
3548 error_setg(errp, "open %s failed", file->out);
3551 return qemu_chr_open_win_file(out);
3554 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3557 return qemu_chr_open_win_path(serial->device);
3560 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3563 error_setg(errp, "character device backend type 'parallel' not supported");
3569 static int qmp_chardev_open_file_source(char *src, int flags,
3574 TFR(fd = qemu_open(src, flags, 0666));
3576 error_setg(errp, "open %s: %s", src, strerror(errno));
3581 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3583 int flags, in = -1, out = -1;
3585 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3586 out = qmp_chardev_open_file_source(file->out, flags, errp);
3587 if (error_is_set(errp)) {
3593 in = qmp_chardev_open_file_source(file->in, flags, errp);
3594 if (error_is_set(errp)) {
3600 return qemu_chr_open_fd(in, out);
3603 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3606 #ifdef HAVE_CHARDEV_TTY
3609 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3610 if (error_is_set(errp)) {
3613 socket_set_nonblock(fd);
3614 return qemu_chr_open_tty_fd(fd);
3616 error_setg(errp, "character device backend type 'serial' not supported");
3621 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3624 #ifdef HAVE_CHARDEV_PARPORT
3627 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3628 if (error_is_set(errp)) {
3631 return qemu_chr_open_pp_fd(fd);
3633 error_setg(errp, "character device backend type 'parallel' not supported");
3640 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3643 SocketAddress *addr = sock->addr;
3644 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3645 bool is_listen = sock->has_server ? sock->server : true;
3646 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3647 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3651 fd = socket_listen(addr, errp);
3653 fd = socket_connect(addr, errp, NULL, NULL);
3655 if (error_is_set(errp)) {
3658 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3659 is_telnet, is_waitconnect, errp);
3662 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3665 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3666 CharDriverState *base, *chr = NULL;
3668 chr = qemu_chr_find(id);
3670 error_setg(errp, "Chardev '%s' already exists", id);
3675 switch (backend->kind) {
3676 case CHARDEV_BACKEND_KIND_FILE:
3677 chr = qmp_chardev_open_file(backend->file, errp);
3679 case CHARDEV_BACKEND_KIND_SERIAL:
3680 chr = qmp_chardev_open_serial(backend->serial, errp);
3682 case CHARDEV_BACKEND_KIND_PARALLEL:
3683 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3685 case CHARDEV_BACKEND_KIND_SOCKET:
3686 chr = qmp_chardev_open_socket(backend->socket, errp);
3688 #ifdef HAVE_CHARDEV_TTY
3689 case CHARDEV_BACKEND_KIND_PTY:
3691 /* qemu_chr_open_pty sets "path" in opts */
3693 opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
3694 chr = qemu_chr_open_pty(opts);
3695 ret->pty = g_strdup(qemu_opt_get(opts, "path"));
3696 ret->has_pty = true;
3697 qemu_opts_del(opts);
3701 case CHARDEV_BACKEND_KIND_NULL:
3702 chr = qemu_chr_open_null();
3704 case CHARDEV_BACKEND_KIND_MUX:
3705 base = qemu_chr_find(backend->mux->chardev);
3707 error_setg(errp, "mux: base chardev %s not found",
3708 backend->mux->chardev);
3711 chr = qemu_chr_open_mux(base);
3713 case CHARDEV_BACKEND_KIND_MSMOUSE:
3714 chr = qemu_chr_open_msmouse();
3716 #ifdef CONFIG_BRLAPI
3717 case CHARDEV_BACKEND_KIND_BRAILLE:
3718 chr = chr_baum_init();
3721 case CHARDEV_BACKEND_KIND_STDIO:
3722 chr = qemu_chr_open_stdio(backend->stdio);
3725 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3729 if (chr == NULL && !error_is_set(errp)) {
3730 error_setg(errp, "Failed to create chardev");
3733 chr->label = g_strdup(id);
3734 chr->avail_connections =
3735 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
3736 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3744 void qmp_chardev_remove(const char *id, Error **errp)
3746 CharDriverState *chr;
3748 chr = qemu_chr_find(id);
3750 error_setg(errp, "Chardev '%s' not found", id);
3753 if (chr->chr_can_read || chr->chr_read ||
3754 chr->chr_event || chr->handler_opaque) {
3755 error_setg(errp, "Chardev '%s' is busy", id);
3758 qemu_chr_delete(chr);
3761 static void register_types(void)
3763 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
3764 register_char_driver("socket", qemu_chr_open_socket);
3765 register_char_driver("udp", qemu_chr_open_udp);
3766 register_char_driver("memory", qemu_chr_open_ringbuf);
3767 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3768 qemu_chr_parse_file_out);
3769 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3770 qemu_chr_parse_stdio);
3771 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3772 qemu_chr_parse_serial);
3773 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3774 qemu_chr_parse_serial);
3775 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3776 qemu_chr_parse_parallel);
3777 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3778 qemu_chr_parse_parallel);
3780 register_char_driver("pipe", qemu_chr_open_win_pipe);
3781 register_char_driver("console", qemu_chr_open_win_con);
3783 register_char_driver("pipe", qemu_chr_open_pipe);
3785 #ifdef HAVE_CHARDEV_TTY
3786 register_char_driver("pty", qemu_chr_open_pty);
3790 type_init(register_types);