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(const char *id,
1163 CharDriverState *chr;
1166 int master_fd, slave_fd;
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 chr->filename = g_strdup_printf("pty:%s", q_ptsname(master_fd));
1188 ret->pty = g_strdup(q_ptsname(master_fd));
1189 ret->has_pty = true;
1191 fprintf(stderr, "char device redirected to %s (label %s)\n",
1192 q_ptsname(master_fd), id);
1194 s = g_malloc0(sizeof(PtyCharDriver));
1196 chr->chr_write = pty_chr_write;
1197 chr->chr_update_read_handler = pty_chr_update_read_handler;
1198 chr->chr_close = pty_chr_close;
1199 chr->chr_add_watch = pty_chr_add_watch;
1201 s->fd = io_channel_from_fd(master_fd);
1207 static void tty_serial_init(int fd, int speed,
1208 int parity, int data_bits, int stop_bits)
1214 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1215 speed, parity, data_bits, stop_bits);
1217 tcgetattr (fd, &tty);
1219 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1220 speed = speed * 10 / 11;
1237 /* Non-Posix values follow. They may be unsupported on some systems. */
1239 check_speed(115200);
1241 check_speed(230400);
1244 check_speed(460800);
1247 check_speed(500000);
1250 check_speed(576000);
1253 check_speed(921600);
1256 check_speed(1000000);
1259 check_speed(1152000);
1262 check_speed(1500000);
1265 check_speed(2000000);
1268 check_speed(2500000);
1271 check_speed(3000000);
1274 check_speed(3500000);
1277 check_speed(4000000);
1282 cfsetispeed(&tty, spd);
1283 cfsetospeed(&tty, spd);
1285 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1286 |INLCR|IGNCR|ICRNL|IXON);
1287 tty.c_oflag |= OPOST;
1288 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1289 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1310 tty.c_cflag |= PARENB;
1313 tty.c_cflag |= PARENB | PARODD;
1317 tty.c_cflag |= CSTOPB;
1319 tcsetattr (fd, TCSANOW, &tty);
1322 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1324 FDCharDriver *s = chr->opaque;
1327 case CHR_IOCTL_SERIAL_SET_PARAMS:
1329 QEMUSerialSetParams *ssp = arg;
1330 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1331 ssp->speed, ssp->parity,
1332 ssp->data_bits, ssp->stop_bits);
1335 case CHR_IOCTL_SERIAL_SET_BREAK:
1337 int enable = *(int *)arg;
1339 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1343 case CHR_IOCTL_SERIAL_GET_TIOCM:
1346 int *targ = (int *)arg;
1347 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1349 if (sarg & TIOCM_CTS)
1350 *targ |= CHR_TIOCM_CTS;
1351 if (sarg & TIOCM_CAR)
1352 *targ |= CHR_TIOCM_CAR;
1353 if (sarg & TIOCM_DSR)
1354 *targ |= CHR_TIOCM_DSR;
1355 if (sarg & TIOCM_RI)
1356 *targ |= CHR_TIOCM_RI;
1357 if (sarg & TIOCM_DTR)
1358 *targ |= CHR_TIOCM_DTR;
1359 if (sarg & TIOCM_RTS)
1360 *targ |= CHR_TIOCM_RTS;
1363 case CHR_IOCTL_SERIAL_SET_TIOCM:
1365 int sarg = *(int *)arg;
1367 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1368 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1369 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1370 if (sarg & CHR_TIOCM_CTS)
1372 if (sarg & CHR_TIOCM_CAR)
1374 if (sarg & CHR_TIOCM_DSR)
1376 if (sarg & CHR_TIOCM_RI)
1378 if (sarg & CHR_TIOCM_DTR)
1380 if (sarg & CHR_TIOCM_RTS)
1382 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1391 static void qemu_chr_close_tty(CharDriverState *chr)
1393 FDCharDriver *s = chr->opaque;
1397 fd = g_io_channel_unix_get_fd(s->fd_in);
1407 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1409 CharDriverState *chr;
1411 tty_serial_init(fd, 115200, 'N', 8, 1);
1412 chr = qemu_chr_open_fd(fd, fd);
1413 chr->chr_ioctl = tty_serial_ioctl;
1414 chr->chr_close = qemu_chr_close_tty;
1417 #endif /* __linux__ || __sun__ */
1419 #if defined(__linux__)
1421 #define HAVE_CHARDEV_PARPORT 1
1426 } ParallelCharDriver;
1428 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1430 if (s->mode != mode) {
1432 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1439 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1441 ParallelCharDriver *drv = chr->opaque;
1446 case CHR_IOCTL_PP_READ_DATA:
1447 if (ioctl(fd, PPRDATA, &b) < 0)
1449 *(uint8_t *)arg = b;
1451 case CHR_IOCTL_PP_WRITE_DATA:
1452 b = *(uint8_t *)arg;
1453 if (ioctl(fd, PPWDATA, &b) < 0)
1456 case CHR_IOCTL_PP_READ_CONTROL:
1457 if (ioctl(fd, PPRCONTROL, &b) < 0)
1459 /* Linux gives only the lowest bits, and no way to know data
1460 direction! For better compatibility set the fixed upper
1462 *(uint8_t *)arg = b | 0xc0;
1464 case CHR_IOCTL_PP_WRITE_CONTROL:
1465 b = *(uint8_t *)arg;
1466 if (ioctl(fd, PPWCONTROL, &b) < 0)
1469 case CHR_IOCTL_PP_READ_STATUS:
1470 if (ioctl(fd, PPRSTATUS, &b) < 0)
1472 *(uint8_t *)arg = b;
1474 case CHR_IOCTL_PP_DATA_DIR:
1475 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1478 case CHR_IOCTL_PP_EPP_READ_ADDR:
1479 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1480 struct ParallelIOArg *parg = arg;
1481 int n = read(fd, parg->buffer, parg->count);
1482 if (n != parg->count) {
1487 case CHR_IOCTL_PP_EPP_READ:
1488 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1489 struct ParallelIOArg *parg = arg;
1490 int n = read(fd, parg->buffer, parg->count);
1491 if (n != parg->count) {
1496 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1497 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1498 struct ParallelIOArg *parg = arg;
1499 int n = write(fd, parg->buffer, parg->count);
1500 if (n != parg->count) {
1505 case CHR_IOCTL_PP_EPP_WRITE:
1506 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1507 struct ParallelIOArg *parg = arg;
1508 int n = write(fd, parg->buffer, parg->count);
1509 if (n != parg->count) {
1520 static void pp_close(CharDriverState *chr)
1522 ParallelCharDriver *drv = chr->opaque;
1525 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1526 ioctl(fd, PPRELEASE);
1529 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1532 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1534 CharDriverState *chr;
1535 ParallelCharDriver *drv;
1537 if (ioctl(fd, PPCLAIM) < 0) {
1542 drv = g_malloc0(sizeof(ParallelCharDriver));
1544 drv->mode = IEEE1284_MODE_COMPAT;
1546 chr = g_malloc0(sizeof(CharDriverState));
1547 chr->chr_write = null_chr_write;
1548 chr->chr_ioctl = pp_ioctl;
1549 chr->chr_close = pp_close;
1552 qemu_chr_generic_open(chr);
1556 #endif /* __linux__ */
1558 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1560 #define HAVE_CHARDEV_PARPORT 1
1562 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1564 int fd = (int)(intptr_t)chr->opaque;
1568 case CHR_IOCTL_PP_READ_DATA:
1569 if (ioctl(fd, PPIGDATA, &b) < 0)
1571 *(uint8_t *)arg = b;
1573 case CHR_IOCTL_PP_WRITE_DATA:
1574 b = *(uint8_t *)arg;
1575 if (ioctl(fd, PPISDATA, &b) < 0)
1578 case CHR_IOCTL_PP_READ_CONTROL:
1579 if (ioctl(fd, PPIGCTRL, &b) < 0)
1581 *(uint8_t *)arg = b;
1583 case CHR_IOCTL_PP_WRITE_CONTROL:
1584 b = *(uint8_t *)arg;
1585 if (ioctl(fd, PPISCTRL, &b) < 0)
1588 case CHR_IOCTL_PP_READ_STATUS:
1589 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1591 *(uint8_t *)arg = b;
1599 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1601 CharDriverState *chr;
1603 chr = g_malloc0(sizeof(CharDriverState));
1604 chr->opaque = (void *)(intptr_t)fd;
1605 chr->chr_write = null_chr_write;
1606 chr->chr_ioctl = pp_ioctl;
1615 HANDLE hcom, hrecv, hsend;
1616 OVERLAPPED orecv, osend;
1623 HANDLE hInputReadyEvent;
1624 HANDLE hInputDoneEvent;
1625 HANDLE hInputThread;
1626 uint8_t win_stdio_buf;
1627 } WinStdioCharState;
1629 #define NSENDBUF 2048
1630 #define NRECVBUF 2048
1631 #define MAXCONNECT 1
1632 #define NTIMEOUT 5000
1634 static int win_chr_poll(void *opaque);
1635 static int win_chr_pipe_poll(void *opaque);
1637 static void win_chr_close(CharDriverState *chr)
1639 WinCharState *s = chr->opaque;
1642 CloseHandle(s->hsend);
1646 CloseHandle(s->hrecv);
1650 CloseHandle(s->hcom);
1654 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1656 qemu_del_polling_cb(win_chr_poll, chr);
1658 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1661 static int win_chr_init(CharDriverState *chr, const char *filename)
1663 WinCharState *s = chr->opaque;
1665 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1670 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1672 fprintf(stderr, "Failed CreateEvent\n");
1675 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1677 fprintf(stderr, "Failed CreateEvent\n");
1681 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1682 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1683 if (s->hcom == INVALID_HANDLE_VALUE) {
1684 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1689 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1690 fprintf(stderr, "Failed SetupComm\n");
1694 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1695 size = sizeof(COMMCONFIG);
1696 GetDefaultCommConfig(filename, &comcfg, &size);
1697 comcfg.dcb.DCBlength = sizeof(DCB);
1698 CommConfigDialog(filename, NULL, &comcfg);
1700 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1701 fprintf(stderr, "Failed SetCommState\n");
1705 if (!SetCommMask(s->hcom, EV_ERR)) {
1706 fprintf(stderr, "Failed SetCommMask\n");
1710 cto.ReadIntervalTimeout = MAXDWORD;
1711 if (!SetCommTimeouts(s->hcom, &cto)) {
1712 fprintf(stderr, "Failed SetCommTimeouts\n");
1716 if (!ClearCommError(s->hcom, &err, &comstat)) {
1717 fprintf(stderr, "Failed ClearCommError\n");
1720 qemu_add_polling_cb(win_chr_poll, chr);
1728 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1730 WinCharState *s = chr->opaque;
1731 DWORD len, ret, size, err;
1734 ZeroMemory(&s->osend, sizeof(s->osend));
1735 s->osend.hEvent = s->hsend;
1738 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1740 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1742 err = GetLastError();
1743 if (err == ERROR_IO_PENDING) {
1744 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1762 static int win_chr_read_poll(CharDriverState *chr)
1764 WinCharState *s = chr->opaque;
1766 s->max_size = qemu_chr_be_can_write(chr);
1770 static void win_chr_readfile(CharDriverState *chr)
1772 WinCharState *s = chr->opaque;
1774 uint8_t buf[READ_BUF_LEN];
1777 ZeroMemory(&s->orecv, sizeof(s->orecv));
1778 s->orecv.hEvent = s->hrecv;
1779 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1781 err = GetLastError();
1782 if (err == ERROR_IO_PENDING) {
1783 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1788 qemu_chr_be_write(chr, buf, size);
1792 static void win_chr_read(CharDriverState *chr)
1794 WinCharState *s = chr->opaque;
1796 if (s->len > s->max_size)
1797 s->len = s->max_size;
1801 win_chr_readfile(chr);
1804 static int win_chr_poll(void *opaque)
1806 CharDriverState *chr = opaque;
1807 WinCharState *s = chr->opaque;
1811 ClearCommError(s->hcom, &comerr, &status);
1812 if (status.cbInQue > 0) {
1813 s->len = status.cbInQue;
1814 win_chr_read_poll(chr);
1821 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1823 CharDriverState *chr;
1826 chr = g_malloc0(sizeof(CharDriverState));
1827 s = g_malloc0(sizeof(WinCharState));
1829 chr->chr_write = win_chr_write;
1830 chr->chr_close = win_chr_close;
1832 if (win_chr_init(chr, filename) < 0) {
1837 qemu_chr_generic_open(chr);
1841 static int win_chr_pipe_poll(void *opaque)
1843 CharDriverState *chr = opaque;
1844 WinCharState *s = chr->opaque;
1847 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1850 win_chr_read_poll(chr);
1857 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1859 WinCharState *s = chr->opaque;
1867 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1869 fprintf(stderr, "Failed CreateEvent\n");
1872 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1874 fprintf(stderr, "Failed CreateEvent\n");
1878 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1879 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1880 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1882 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1883 if (s->hcom == INVALID_HANDLE_VALUE) {
1884 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1889 ZeroMemory(&ov, sizeof(ov));
1890 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1891 ret = ConnectNamedPipe(s->hcom, &ov);
1893 fprintf(stderr, "Failed ConnectNamedPipe\n");
1897 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1899 fprintf(stderr, "Failed GetOverlappedResult\n");
1901 CloseHandle(ov.hEvent);
1908 CloseHandle(ov.hEvent);
1911 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1920 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1922 const char *filename = qemu_opt_get(opts, "path");
1923 CharDriverState *chr;
1926 chr = g_malloc0(sizeof(CharDriverState));
1927 s = g_malloc0(sizeof(WinCharState));
1929 chr->chr_write = win_chr_write;
1930 chr->chr_close = win_chr_close;
1932 if (win_chr_pipe_init(chr, filename) < 0) {
1937 qemu_chr_generic_open(chr);
1941 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1943 CharDriverState *chr;
1946 chr = g_malloc0(sizeof(CharDriverState));
1947 s = g_malloc0(sizeof(WinCharState));
1950 chr->chr_write = win_chr_write;
1951 qemu_chr_generic_open(chr);
1955 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1957 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1960 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1962 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1969 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1979 static void win_stdio_wait_func(void *opaque)
1981 CharDriverState *chr = opaque;
1982 WinStdioCharState *stdio = chr->opaque;
1983 INPUT_RECORD buf[4];
1988 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1992 /* Avoid error storm */
1993 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1997 for (i = 0; i < dwSize; i++) {
1998 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2000 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2002 if (kev->uChar.AsciiChar != 0) {
2003 for (j = 0; j < kev->wRepeatCount; j++) {
2004 if (qemu_chr_be_can_write(chr)) {
2005 uint8_t c = kev->uChar.AsciiChar;
2006 qemu_chr_be_write(chr, &c, 1);
2014 static DWORD WINAPI win_stdio_thread(LPVOID param)
2016 CharDriverState *chr = param;
2017 WinStdioCharState *stdio = chr->opaque;
2023 /* Wait for one byte */
2024 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2026 /* Exit in case of error, continue if nothing read */
2034 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2035 if (stdio->win_stdio_buf == '\r') {
2039 /* Signal the main thread and wait until the byte was eaten */
2040 if (!SetEvent(stdio->hInputReadyEvent)) {
2043 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2049 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2053 static void win_stdio_thread_wait_func(void *opaque)
2055 CharDriverState *chr = opaque;
2056 WinStdioCharState *stdio = chr->opaque;
2058 if (qemu_chr_be_can_write(chr)) {
2059 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2062 SetEvent(stdio->hInputDoneEvent);
2065 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2067 WinStdioCharState *stdio = chr->opaque;
2070 GetConsoleMode(stdio->hStdIn, &dwMode);
2073 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2075 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2079 static void win_stdio_close(CharDriverState *chr)
2081 WinStdioCharState *stdio = chr->opaque;
2083 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2084 CloseHandle(stdio->hInputReadyEvent);
2086 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2087 CloseHandle(stdio->hInputDoneEvent);
2089 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2090 TerminateThread(stdio->hInputThread, 0);
2093 g_free(chr->opaque);
2097 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
2099 CharDriverState *chr;
2100 WinStdioCharState *stdio;
2104 chr = g_malloc0(sizeof(CharDriverState));
2105 stdio = g_malloc0(sizeof(WinStdioCharState));
2107 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2108 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2109 fprintf(stderr, "cannot open stdio: invalid handle\n");
2113 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2115 chr->opaque = stdio;
2116 chr->chr_write = win_stdio_write;
2117 chr->chr_close = win_stdio_close;
2120 if (qemu_add_wait_object(stdio->hStdIn,
2121 win_stdio_wait_func, chr)) {
2122 fprintf(stderr, "qemu_add_wait_object: failed\n");
2127 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2128 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2129 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2132 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2133 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2134 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2135 fprintf(stderr, "cannot create stdio thread or event\n");
2138 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2139 win_stdio_thread_wait_func, chr)) {
2140 fprintf(stderr, "qemu_add_wait_object: failed\n");
2144 dwMode |= ENABLE_LINE_INPUT;
2147 /* set the terminal in raw mode */
2148 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2149 dwMode |= ENABLE_PROCESSED_INPUT;
2152 SetConsoleMode(stdio->hStdIn, dwMode);
2154 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2155 qemu_chr_fe_set_echo(chr, false);
2159 #endif /* !_WIN32 */
2162 /***********************************************************/
2163 /* UDP Net console */
2169 uint8_t buf[READ_BUF_LEN];
2175 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2177 NetCharDriver *s = chr->opaque;
2178 gsize bytes_written;
2181 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2182 if (status == G_IO_STATUS_EOF) {
2184 } else if (status != G_IO_STATUS_NORMAL) {
2188 return bytes_written;
2191 static int udp_chr_read_poll(void *opaque)
2193 CharDriverState *chr = opaque;
2194 NetCharDriver *s = chr->opaque;
2196 s->max_size = qemu_chr_be_can_write(chr);
2198 /* If there were any stray characters in the queue process them
2201 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2202 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2204 s->max_size = qemu_chr_be_can_write(chr);
2209 static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2211 CharDriverState *chr = opaque;
2212 NetCharDriver *s = chr->opaque;
2213 gsize bytes_read = 0;
2216 if (s->max_size == 0)
2218 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2220 s->bufcnt = bytes_read;
2221 s->bufptr = s->bufcnt;
2222 if (status != G_IO_STATUS_NORMAL) {
2227 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2228 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2230 s->max_size = qemu_chr_be_can_write(chr);
2236 static void udp_chr_update_read_handler(CharDriverState *chr)
2238 NetCharDriver *s = chr->opaque;
2241 g_source_remove(s->tag);
2246 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
2250 static void udp_chr_close(CharDriverState *chr)
2252 NetCharDriver *s = chr->opaque;
2254 g_source_remove(s->tag);
2257 g_io_channel_unref(s->chan);
2261 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2264 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2266 CharDriverState *chr = NULL;
2267 NetCharDriver *s = NULL;
2268 Error *local_err = NULL;
2271 chr = g_malloc0(sizeof(CharDriverState));
2272 s = g_malloc0(sizeof(NetCharDriver));
2274 fd = inet_dgram_opts(opts, &local_err);
2280 s->chan = io_channel_from_socket(s->fd);
2284 chr->chr_write = udp_chr_write;
2285 chr->chr_update_read_handler = udp_chr_update_read_handler;
2286 chr->chr_close = udp_chr_close;
2291 qerror_report_err(local_err);
2292 error_free(local_err);
2302 /***********************************************************/
2303 /* TCP Net console */
2307 GIOChannel *chan, *listen_chan;
2308 guint tag, listen_tag;
2318 static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
2320 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2322 TCPCharDriver *s = chr->opaque;
2324 return io_channel_send_all(s->chan, buf, len);
2326 /* XXX: indicate an error ? */
2331 static int tcp_chr_read_poll(void *opaque)
2333 CharDriverState *chr = opaque;
2334 TCPCharDriver *s = chr->opaque;
2337 s->max_size = qemu_chr_be_can_write(chr);
2342 #define IAC_BREAK 243
2343 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2345 uint8_t *buf, int *size)
2347 /* Handle any telnet client's basic IAC options to satisfy char by
2348 * char mode with no echo. All IAC options will be removed from
2349 * the buf and the do_telnetopt variable will be used to track the
2350 * state of the width of the IAC information.
2352 * IAC commands come in sets of 3 bytes with the exception of the
2353 * "IAC BREAK" command and the double IAC.
2359 for (i = 0; i < *size; i++) {
2360 if (s->do_telnetopt > 1) {
2361 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2362 /* Double IAC means send an IAC */
2366 s->do_telnetopt = 1;
2368 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2369 /* Handle IAC break commands by sending a serial break */
2370 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2375 if (s->do_telnetopt >= 4) {
2376 s->do_telnetopt = 1;
2379 if ((unsigned char)buf[i] == IAC) {
2380 s->do_telnetopt = 2;
2391 static int tcp_get_msgfd(CharDriverState *chr)
2393 TCPCharDriver *s = chr->opaque;
2400 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2402 TCPCharDriver *s = chr->opaque;
2403 struct cmsghdr *cmsg;
2405 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2408 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2409 cmsg->cmsg_level != SOL_SOCKET ||
2410 cmsg->cmsg_type != SCM_RIGHTS)
2413 fd = *((int *)CMSG_DATA(cmsg));
2417 #ifndef MSG_CMSG_CLOEXEC
2418 qemu_set_cloexec(fd);
2426 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2428 TCPCharDriver *s = chr->opaque;
2429 struct msghdr msg = { NULL, };
2430 struct iovec iov[1];
2432 struct cmsghdr cmsg;
2433 char control[CMSG_SPACE(sizeof(int))];
2438 iov[0].iov_base = buf;
2439 iov[0].iov_len = len;
2443 msg.msg_control = &msg_control;
2444 msg.msg_controllen = sizeof(msg_control);
2446 #ifdef MSG_CMSG_CLOEXEC
2447 flags |= MSG_CMSG_CLOEXEC;
2449 ret = recvmsg(s->fd, &msg, flags);
2450 if (ret > 0 && s->is_unix) {
2451 unix_process_msgfd(chr, &msg);
2457 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2459 TCPCharDriver *s = chr->opaque;
2460 return qemu_recv(s->fd, buf, len, 0);
2464 static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2466 TCPCharDriver *s = chr->opaque;
2467 return g_io_create_watch(s->chan, cond);
2470 static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2472 CharDriverState *chr = opaque;
2473 TCPCharDriver *s = chr->opaque;
2474 uint8_t buf[READ_BUF_LEN];
2477 if (!s->connected || s->max_size <= 0) {
2481 if (len > s->max_size)
2483 size = tcp_chr_recv(chr, (void *)buf, len);
2485 /* connection closed */
2487 if (s->listen_chan) {
2488 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2490 g_source_remove(s->tag);
2492 g_io_channel_unref(s->chan);
2496 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2497 } else if (size > 0) {
2498 if (s->do_telnetopt)
2499 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2501 qemu_chr_be_write(chr, buf, size);
2508 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2510 return qemu_chr_open_fd(eventfd, eventfd);
2514 static void tcp_chr_connect(void *opaque)
2516 CharDriverState *chr = opaque;
2517 TCPCharDriver *s = chr->opaque;
2521 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
2523 qemu_chr_generic_open(chr);
2526 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2527 static void tcp_chr_telnet_init(int fd)
2530 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2531 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2532 send(fd, (char *)buf, 3, 0);
2533 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2534 send(fd, (char *)buf, 3, 0);
2535 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2536 send(fd, (char *)buf, 3, 0);
2537 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2538 send(fd, (char *)buf, 3, 0);
2541 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2543 TCPCharDriver *s = chr->opaque;
2547 socket_set_nonblock(fd);
2549 socket_set_nodelay(fd);
2551 s->chan = io_channel_from_socket(fd);
2552 g_source_remove(s->listen_tag);
2554 tcp_chr_connect(chr);
2559 static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
2561 CharDriverState *chr = opaque;
2562 TCPCharDriver *s = chr->opaque;
2563 struct sockaddr_in saddr;
2565 struct sockaddr_un uaddr;
2567 struct sockaddr *addr;
2574 len = sizeof(uaddr);
2575 addr = (struct sockaddr *)&uaddr;
2579 len = sizeof(saddr);
2580 addr = (struct sockaddr *)&saddr;
2582 fd = qemu_accept(s->listen_fd, addr, &len);
2583 if (fd < 0 && errno != EINTR) {
2585 } else if (fd >= 0) {
2586 if (s->do_telnetopt)
2587 tcp_chr_telnet_init(fd);
2591 if (tcp_chr_add_client(chr, fd) < 0)
2597 static void tcp_chr_close(CharDriverState *chr)
2599 TCPCharDriver *s = chr->opaque;
2602 g_source_remove(s->tag);
2605 g_io_channel_unref(s->chan);
2609 if (s->listen_fd >= 0) {
2610 if (s->listen_tag) {
2611 g_source_remove(s->listen_tag);
2613 if (s->listen_chan) {
2614 g_io_channel_unref(s->listen_chan);
2616 closesocket(s->listen_fd);
2619 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2622 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2623 bool is_listen, bool is_telnet,
2624 bool is_waitconnect,
2627 CharDriverState *chr = NULL;
2628 TCPCharDriver *s = NULL;
2629 char host[NI_MAXHOST], serv[NI_MAXSERV];
2630 const char *left = "", *right = "";
2631 struct sockaddr_storage ss;
2632 socklen_t ss_len = sizeof(ss);
2634 memset(&ss, 0, ss_len);
2635 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2636 error_setg(errp, "getsockname: %s", strerror(errno));
2640 chr = g_malloc0(sizeof(CharDriverState));
2641 s = g_malloc0(sizeof(TCPCharDriver));
2648 chr->filename = g_malloc(256);
2649 switch (ss.ss_family) {
2653 snprintf(chr->filename, 256, "unix:%s%s",
2654 ((struct sockaddr_un *)(&ss))->sun_path,
2655 is_listen ? ",server" : "");
2663 s->do_nodelay = do_nodelay;
2664 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2665 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2666 snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
2667 is_telnet ? "telnet" : "tcp",
2668 left, host, right, serv,
2669 is_listen ? ",server" : "");
2674 chr->chr_write = tcp_chr_write;
2675 chr->chr_close = tcp_chr_close;
2676 chr->get_msgfd = tcp_get_msgfd;
2677 chr->chr_add_client = tcp_chr_add_client;
2678 chr->chr_add_watch = tcp_chr_add_watch;
2682 s->listen_chan = io_channel_from_socket(s->listen_fd);
2683 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2685 s->do_telnetopt = 1;
2690 socket_set_nodelay(fd);
2691 s->chan = io_channel_from_socket(s->fd);
2692 tcp_chr_connect(chr);
2695 if (is_listen && is_waitconnect) {
2696 printf("QEMU waiting for connection on: %s\n",
2698 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
2699 socket_set_nonblock(s->listen_fd);
2704 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2706 CharDriverState *chr = NULL;
2707 Error *local_err = NULL;
2715 is_listen = qemu_opt_get_bool(opts, "server", 0);
2716 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2717 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2718 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2719 is_unix = qemu_opt_get(opts, "path") != NULL;
2725 fd = unix_listen_opts(opts, &local_err);
2727 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2731 fd = inet_listen_opts(opts, 0, &local_err);
2733 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2740 if (!is_waitconnect)
2741 socket_set_nonblock(fd);
2743 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2744 is_waitconnect, &local_err);
2745 if (error_is_set(&local_err)) {
2753 qerror_report_err(local_err);
2754 error_free(local_err);
2760 g_free(chr->opaque);
2766 /***********************************************************/
2767 /* Memory chardev */
2770 size_t outbuf_capacity;
2774 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2776 MemoryDriver *d = chr->opaque;
2778 /* TODO: the QString implementation has the same code, we should
2779 * introduce a generic way to do this in cutils.c */
2780 if (d->outbuf_capacity < d->outbuf_size + len) {
2782 d->outbuf_capacity += len;
2783 d->outbuf_capacity *= 2;
2784 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2787 memcpy(d->outbuf + d->outbuf_size, buf, len);
2788 d->outbuf_size += len;
2793 void qemu_chr_init_mem(CharDriverState *chr)
2797 d = g_malloc(sizeof(*d));
2799 d->outbuf_capacity = 4096;
2800 d->outbuf = g_malloc0(d->outbuf_capacity);
2802 memset(chr, 0, sizeof(*chr));
2804 chr->chr_write = mem_chr_write;
2807 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2809 MemoryDriver *d = chr->opaque;
2810 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2813 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2814 void qemu_chr_close_mem(CharDriverState *chr)
2816 MemoryDriver *d = chr->opaque;
2819 g_free(chr->opaque);
2821 chr->chr_write = NULL;
2824 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2826 const MemoryDriver *d = chr->opaque;
2827 return d->outbuf_size;
2830 /*********************************************************/
2831 /* Ring buffer chardev */
2838 } RingBufCharDriver;
2840 static size_t ringbuf_count(const CharDriverState *chr)
2842 const RingBufCharDriver *d = chr->opaque;
2844 return d->prod - d->cons;
2847 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2849 RingBufCharDriver *d = chr->opaque;
2852 if (!buf || (len < 0)) {
2856 for (i = 0; i < len; i++ ) {
2857 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2858 if (d->prod - d->cons > d->size) {
2859 d->cons = d->prod - d->size;
2866 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2868 RingBufCharDriver *d = chr->opaque;
2871 for (i = 0; i < len && d->cons != d->prod; i++) {
2872 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2878 static void ringbuf_chr_close(struct CharDriverState *chr)
2880 RingBufCharDriver *d = chr->opaque;
2887 static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
2889 CharDriverState *chr;
2890 RingBufCharDriver *d;
2892 chr = g_malloc0(sizeof(CharDriverState));
2893 d = g_malloc(sizeof(*d));
2895 d->size = qemu_opt_get_size(opts, "size", 0);
2900 /* The size must be power of 2 */
2901 if (d->size & (d->size - 1)) {
2902 error_report("size of ringbuf device must be power of two");
2908 d->cbuf = g_malloc0(d->size);
2911 chr->chr_write = ringbuf_chr_write;
2912 chr->chr_close = ringbuf_chr_close;
2922 static bool chr_is_ringbuf(const CharDriverState *chr)
2924 return chr->chr_write == ringbuf_chr_write;
2927 void qmp_ringbuf_write(const char *device, const char *data,
2928 bool has_format, enum DataFormat format,
2931 CharDriverState *chr;
2932 const uint8_t *write_data;
2936 chr = qemu_chr_find(device);
2938 error_setg(errp, "Device '%s' not found", device);
2942 if (!chr_is_ringbuf(chr)) {
2943 error_setg(errp,"%s is not a ringbuf device", device);
2947 if (has_format && (format == DATA_FORMAT_BASE64)) {
2948 write_data = g_base64_decode(data, &write_count);
2950 write_data = (uint8_t *)data;
2951 write_count = strlen(data);
2954 ret = ringbuf_chr_write(chr, write_data, write_count);
2956 if (write_data != (uint8_t *)data) {
2957 g_free((void *)write_data);
2961 error_setg(errp, "Failed to write to device %s", device);
2966 char *qmp_ringbuf_read(const char *device, int64_t size,
2967 bool has_format, enum DataFormat format,
2970 CharDriverState *chr;
2975 chr = qemu_chr_find(device);
2977 error_setg(errp, "Device '%s' not found", device);
2981 if (!chr_is_ringbuf(chr)) {
2982 error_setg(errp,"%s is not a ringbuf device", device);
2987 error_setg(errp, "size must be greater than zero");
2991 count = ringbuf_count(chr);
2992 size = size > count ? count : size;
2993 read_data = g_malloc(size + 1);
2995 ringbuf_chr_read(chr, read_data, size);
2997 if (has_format && (format == DATA_FORMAT_BASE64)) {
2998 data = g_base64_encode(read_data, size);
3002 * FIXME should read only complete, valid UTF-8 characters up
3003 * to @size bytes. Invalid sequences should be replaced by a
3004 * suitable replacement character. Except when (and only
3005 * when) ring buffer lost characters since last read, initial
3006 * continuation characters should be dropped.
3008 read_data[size] = 0;
3009 data = (char *)read_data;
3015 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
3017 char host[65], port[33], width[8], height[8];
3021 Error *local_err = NULL;
3023 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
3024 if (error_is_set(&local_err)) {
3025 qerror_report_err(local_err);
3026 error_free(local_err);
3030 if (strstart(filename, "mon:", &p)) {
3032 qemu_opt_set(opts, "mux", "on");
3035 if (strcmp(filename, "null") == 0 ||
3036 strcmp(filename, "pty") == 0 ||
3037 strcmp(filename, "msmouse") == 0 ||
3038 strcmp(filename, "braille") == 0 ||
3039 strcmp(filename, "stdio") == 0) {
3040 qemu_opt_set(opts, "backend", filename);
3043 if (strstart(filename, "vc", &p)) {
3044 qemu_opt_set(opts, "backend", "vc");
3046 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3048 qemu_opt_set(opts, "width", width);
3049 qemu_opt_set(opts, "height", height);
3050 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3052 qemu_opt_set(opts, "cols", width);
3053 qemu_opt_set(opts, "rows", height);
3060 if (strcmp(filename, "con:") == 0) {
3061 qemu_opt_set(opts, "backend", "console");
3064 if (strstart(filename, "COM", NULL)) {
3065 qemu_opt_set(opts, "backend", "serial");
3066 qemu_opt_set(opts, "path", filename);
3069 if (strstart(filename, "file:", &p)) {
3070 qemu_opt_set(opts, "backend", "file");
3071 qemu_opt_set(opts, "path", p);
3074 if (strstart(filename, "pipe:", &p)) {
3075 qemu_opt_set(opts, "backend", "pipe");
3076 qemu_opt_set(opts, "path", p);
3079 if (strstart(filename, "tcp:", &p) ||
3080 strstart(filename, "telnet:", &p)) {
3081 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3083 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3086 qemu_opt_set(opts, "backend", "socket");
3087 qemu_opt_set(opts, "host", host);
3088 qemu_opt_set(opts, "port", port);
3089 if (p[pos] == ',') {
3090 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3093 if (strstart(filename, "telnet:", &p))
3094 qemu_opt_set(opts, "telnet", "on");
3097 if (strstart(filename, "udp:", &p)) {
3098 qemu_opt_set(opts, "backend", "udp");
3099 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3101 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3105 qemu_opt_set(opts, "host", host);
3106 qemu_opt_set(opts, "port", port);
3107 if (p[pos] == '@') {
3109 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3111 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3115 qemu_opt_set(opts, "localaddr", host);
3116 qemu_opt_set(opts, "localport", port);
3120 if (strstart(filename, "unix:", &p)) {
3121 qemu_opt_set(opts, "backend", "socket");
3122 if (qemu_opts_do_parse(opts, p, "path") != 0)
3126 if (strstart(filename, "/dev/parport", NULL) ||
3127 strstart(filename, "/dev/ppi", NULL)) {
3128 qemu_opt_set(opts, "backend", "parport");
3129 qemu_opt_set(opts, "path", filename);
3132 if (strstart(filename, "/dev/", NULL)) {
3133 qemu_opt_set(opts, "backend", "tty");
3134 qemu_opt_set(opts, "path", filename);
3139 qemu_opts_del(opts);
3143 static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3146 const char *path = qemu_opt_get(opts, "path");
3149 error_setg(errp, "chardev: file: no filename given");
3152 backend->file = g_new0(ChardevFile, 1);
3153 backend->file->out = g_strdup(path);
3156 static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3159 backend->stdio = g_new0(ChardevStdio, 1);
3160 backend->stdio->has_signal = true;
3161 backend->stdio->signal =
3162 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3165 static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3168 const char *device = qemu_opt_get(opts, "path");
3170 if (device == NULL) {
3171 error_setg(errp, "chardev: serial/tty: no device path given");
3174 backend->serial = g_new0(ChardevHostdev, 1);
3175 backend->serial->device = g_strdup(device);
3178 static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3181 const char *device = qemu_opt_get(opts, "path");
3183 if (device == NULL) {
3184 error_setg(errp, "chardev: parallel: no device path given");
3187 backend->parallel = g_new0(ChardevHostdev, 1);
3188 backend->parallel->device = g_strdup(device);
3191 typedef struct CharDriver {
3194 CharDriverState *(*open)(QemuOpts *opts);
3195 /* new, qapi-based */
3197 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
3200 static GSList *backends;
3202 void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3206 s = g_malloc0(sizeof(*s));
3207 s->name = g_strdup(name);
3210 backends = g_slist_append(backends, s);
3213 void register_char_driver_qapi(const char *name, int kind,
3214 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3218 s = g_malloc0(sizeof(*s));
3219 s->name = g_strdup(name);
3223 backends = g_slist_append(backends, s);
3226 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3227 void (*init)(struct CharDriverState *s),
3231 CharDriverState *chr;
3234 if (qemu_opts_id(opts) == NULL) {
3235 error_setg(errp, "chardev: no id specified");
3239 if (qemu_opt_get(opts, "backend") == NULL) {
3240 error_setg(errp, "chardev: \"%s\" missing backend",
3241 qemu_opts_id(opts));
3244 for (i = backends; i; i = i->next) {
3247 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
3252 error_setg(errp, "chardev: backend \"%s\" not found",
3253 qemu_opt_get(opts, "backend"));
3258 /* using new, qapi init */
3259 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3260 ChardevReturn *ret = NULL;
3261 const char *id = qemu_opts_id(opts);
3262 const char *bid = NULL;
3264 if (qemu_opt_get_bool(opts, "mux", 0)) {
3265 bid = g_strdup_printf("%s-base", id);
3269 backend->kind = cd->kind;
3271 cd->parse(opts, backend, errp);
3272 if (error_is_set(errp)) {
3276 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
3277 if (error_is_set(errp)) {
3282 qapi_free_ChardevBackend(backend);
3283 qapi_free_ChardevReturn(ret);
3284 backend = g_new0(ChardevBackend, 1);
3285 backend->mux = g_new0(ChardevMux, 1);
3286 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3287 backend->mux->chardev = g_strdup(bid);
3288 ret = qmp_chardev_add(id, backend, errp);
3289 if (error_is_set(errp)) {
3294 chr = qemu_chr_find(id);
3297 qapi_free_ChardevBackend(backend);
3298 qapi_free_ChardevReturn(ret);
3302 chr = cd->open(opts);
3304 error_setg(errp, "chardev: opening backend \"%s\" failed",
3305 qemu_opt_get(opts, "backend"));
3310 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3312 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3314 if (qemu_opt_get_bool(opts, "mux", 0)) {
3315 CharDriverState *base = chr;
3316 int len = strlen(qemu_opts_id(opts)) + 6;
3317 base->label = g_malloc(len);
3318 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3319 chr = qemu_chr_open_mux(base);
3320 chr->filename = base->filename;
3321 chr->avail_connections = MAX_MUX;
3322 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3324 chr->avail_connections = 1;
3326 chr->label = g_strdup(qemu_opts_id(opts));
3331 qemu_opts_del(opts);
3335 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3338 CharDriverState *chr;
3342 if (strstart(filename, "chardev:", &p)) {
3343 return qemu_chr_find(p);
3346 opts = qemu_chr_parse_compat(label, filename);
3350 chr = qemu_chr_new_from_opts(opts, init, &err);
3351 if (error_is_set(&err)) {
3352 fprintf(stderr, "%s\n", error_get_pretty(err));
3355 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3356 monitor_init(chr, MONITOR_USE_READLINE);
3361 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3363 if (chr->chr_set_echo) {
3364 chr->chr_set_echo(chr, echo);
3368 void qemu_chr_fe_open(struct CharDriverState *chr)
3370 if (chr->chr_guest_open) {
3371 chr->chr_guest_open(chr);
3375 void qemu_chr_fe_close(struct CharDriverState *chr)
3377 if (chr->chr_guest_close) {
3378 chr->chr_guest_close(chr);
3382 guint qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3383 GIOFunc func, void *user_data)
3388 if (s->chr_add_watch == NULL) {
3392 src = s->chr_add_watch(s, cond);
3393 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3394 tag = g_source_attach(src, NULL);
3395 g_source_unref(src);
3400 void qemu_chr_delete(CharDriverState *chr)
3402 QTAILQ_REMOVE(&chardevs, chr, next);
3403 if (chr->chr_close) {
3404 chr->chr_close(chr);
3406 g_free(chr->filename);
3409 qemu_opts_del(chr->opts);
3414 ChardevInfoList *qmp_query_chardev(Error **errp)
3416 ChardevInfoList *chr_list = NULL;
3417 CharDriverState *chr;
3419 QTAILQ_FOREACH(chr, &chardevs, next) {
3420 ChardevInfoList *info = g_malloc0(sizeof(*info));
3421 info->value = g_malloc0(sizeof(*info->value));
3422 info->value->label = g_strdup(chr->label);
3423 info->value->filename = g_strdup(chr->filename);
3425 info->next = chr_list;
3432 CharDriverState *qemu_chr_find(const char *name)
3434 CharDriverState *chr;
3436 QTAILQ_FOREACH(chr, &chardevs, next) {
3437 if (strcmp(chr->label, name) != 0)
3444 /* Get a character (serial) device interface. */
3445 CharDriverState *qemu_char_get_next_serial(void)
3447 static int next_serial;
3449 /* FIXME: This function needs to go away: use chardev properties! */
3450 return serial_hds[next_serial++];
3453 QemuOptsList qemu_chardev_opts = {
3455 .implied_opt_name = "backend",
3456 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3460 .type = QEMU_OPT_STRING,
3463 .type = QEMU_OPT_STRING,
3466 .type = QEMU_OPT_STRING,
3469 .type = QEMU_OPT_STRING,
3471 .name = "localaddr",
3472 .type = QEMU_OPT_STRING,
3474 .name = "localport",
3475 .type = QEMU_OPT_STRING,
3478 .type = QEMU_OPT_NUMBER,
3481 .type = QEMU_OPT_BOOL,
3484 .type = QEMU_OPT_BOOL,
3487 .type = QEMU_OPT_BOOL,
3490 .type = QEMU_OPT_BOOL,
3493 .type = QEMU_OPT_BOOL,
3496 .type = QEMU_OPT_BOOL,
3499 .type = QEMU_OPT_NUMBER,
3502 .type = QEMU_OPT_NUMBER,
3505 .type = QEMU_OPT_NUMBER,
3508 .type = QEMU_OPT_NUMBER,
3511 .type = QEMU_OPT_BOOL,
3514 .type = QEMU_OPT_BOOL,
3517 .type = QEMU_OPT_STRING,
3520 .type = QEMU_OPT_NUMBER,
3523 .type = QEMU_OPT_SIZE,
3525 { /* end of list */ }
3531 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3536 error_setg(errp, "input file not supported");
3540 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3541 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3542 if (out == INVALID_HANDLE_VALUE) {
3543 error_setg(errp, "open %s failed", file->out);
3546 return qemu_chr_open_win_file(out);
3549 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3552 return qemu_chr_open_win_path(serial->device);
3555 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3558 error_setg(errp, "character device backend type 'parallel' not supported");
3564 static int qmp_chardev_open_file_source(char *src, int flags,
3569 TFR(fd = qemu_open(src, flags, 0666));
3571 error_setg(errp, "open %s: %s", src, strerror(errno));
3576 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3578 int flags, in = -1, out = -1;
3580 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3581 out = qmp_chardev_open_file_source(file->out, flags, errp);
3582 if (error_is_set(errp)) {
3588 in = qmp_chardev_open_file_source(file->in, flags, errp);
3589 if (error_is_set(errp)) {
3595 return qemu_chr_open_fd(in, out);
3598 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3601 #ifdef HAVE_CHARDEV_TTY
3604 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3605 if (error_is_set(errp)) {
3608 socket_set_nonblock(fd);
3609 return qemu_chr_open_tty_fd(fd);
3611 error_setg(errp, "character device backend type 'serial' not supported");
3616 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3619 #ifdef HAVE_CHARDEV_PARPORT
3622 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3623 if (error_is_set(errp)) {
3626 return qemu_chr_open_pp_fd(fd);
3628 error_setg(errp, "character device backend type 'parallel' not supported");
3635 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3638 SocketAddress *addr = sock->addr;
3639 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3640 bool is_listen = sock->has_server ? sock->server : true;
3641 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3642 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3646 fd = socket_listen(addr, errp);
3648 fd = socket_connect(addr, errp, NULL, NULL);
3650 if (error_is_set(errp)) {
3653 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3654 is_telnet, is_waitconnect, errp);
3657 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3660 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3661 CharDriverState *base, *chr = NULL;
3663 chr = qemu_chr_find(id);
3665 error_setg(errp, "Chardev '%s' already exists", id);
3670 switch (backend->kind) {
3671 case CHARDEV_BACKEND_KIND_FILE:
3672 chr = qmp_chardev_open_file(backend->file, errp);
3674 case CHARDEV_BACKEND_KIND_SERIAL:
3675 chr = qmp_chardev_open_serial(backend->serial, errp);
3677 case CHARDEV_BACKEND_KIND_PARALLEL:
3678 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3680 case CHARDEV_BACKEND_KIND_SOCKET:
3681 chr = qmp_chardev_open_socket(backend->socket, errp);
3683 #ifdef HAVE_CHARDEV_TTY
3684 case CHARDEV_BACKEND_KIND_PTY:
3685 chr = qemu_chr_open_pty(id, ret);
3688 case CHARDEV_BACKEND_KIND_NULL:
3689 chr = qemu_chr_open_null();
3691 case CHARDEV_BACKEND_KIND_MUX:
3692 base = qemu_chr_find(backend->mux->chardev);
3694 error_setg(errp, "mux: base chardev %s not found",
3695 backend->mux->chardev);
3698 chr = qemu_chr_open_mux(base);
3700 case CHARDEV_BACKEND_KIND_MSMOUSE:
3701 chr = qemu_chr_open_msmouse();
3703 #ifdef CONFIG_BRLAPI
3704 case CHARDEV_BACKEND_KIND_BRAILLE:
3705 chr = chr_baum_init();
3708 case CHARDEV_BACKEND_KIND_STDIO:
3709 chr = qemu_chr_open_stdio(backend->stdio);
3712 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3716 if (chr == NULL && !error_is_set(errp)) {
3717 error_setg(errp, "Failed to create chardev");
3720 chr->label = g_strdup(id);
3721 chr->avail_connections =
3722 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
3723 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3731 void qmp_chardev_remove(const char *id, Error **errp)
3733 CharDriverState *chr;
3735 chr = qemu_chr_find(id);
3737 error_setg(errp, "Chardev '%s' not found", id);
3740 if (chr->chr_can_read || chr->chr_read ||
3741 chr->chr_event || chr->handler_opaque) {
3742 error_setg(errp, "Chardev '%s' is busy", id);
3745 qemu_chr_delete(chr);
3748 static void register_types(void)
3750 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
3751 register_char_driver("socket", qemu_chr_open_socket);
3752 register_char_driver("udp", qemu_chr_open_udp);
3753 register_char_driver("memory", qemu_chr_open_ringbuf);
3754 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3755 qemu_chr_parse_file_out);
3756 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3757 qemu_chr_parse_stdio);
3758 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3759 qemu_chr_parse_serial);
3760 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3761 qemu_chr_parse_serial);
3762 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3763 qemu_chr_parse_parallel);
3764 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3765 qemu_chr_parse_parallel);
3766 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
3768 register_char_driver("pipe", qemu_chr_open_win_pipe);
3769 register_char_driver("console", qemu_chr_open_win_con);
3771 register_char_driver("pipe", qemu_chr_open_pipe);
3775 type_init(register_types);