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_be_generic_open_bh(gpointer opaque)
125 CharDriverState *s = opaque;
126 qemu_chr_be_event(s, CHR_EVENT_OPENED);
131 void qemu_chr_be_generic_open(CharDriverState *s)
133 if (s->idle_tag == 0) {
134 s->idle_tag = g_idle_add(qemu_chr_be_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_write_all(CharDriverState *s, const uint8_t *buf, int len)
148 while (offset < len) {
150 res = s->chr_write(s, buf + offset, len - offset);
151 if (res == -1 && errno == EAGAIN) {
154 } while (res == -1 && errno == EAGAIN);
170 int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
174 return s->chr_ioctl(s, cmd, arg);
177 int qemu_chr_be_can_write(CharDriverState *s)
179 if (!s->chr_can_read)
181 return s->chr_can_read(s->handler_opaque);
184 void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
187 s->chr_read(s->handler_opaque, buf, len);
191 int qemu_chr_fe_get_msgfd(CharDriverState *s)
193 return s->get_msgfd ? s->get_msgfd(s) : -1;
196 int qemu_chr_add_client(CharDriverState *s, int fd)
198 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
201 void qemu_chr_accept_input(CharDriverState *s)
203 if (s->chr_accept_input)
204 s->chr_accept_input(s);
208 void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
210 char buf[READ_BUF_LEN];
213 vsnprintf(buf, sizeof(buf), fmt, ap);
214 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
218 void qemu_chr_add_handlers(CharDriverState *s,
219 IOCanReadHandler *fd_can_read,
220 IOReadHandler *fd_read,
221 IOEventHandler *fd_event,
226 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
227 /* chr driver being released. */
228 ++s->avail_connections;
233 s->chr_can_read = fd_can_read;
234 s->chr_read = fd_read;
235 s->chr_event = fd_event;
236 s->handler_opaque = opaque;
237 if (s->chr_update_read_handler)
238 s->chr_update_read_handler(s);
240 if (!s->explicit_fe_open) {
244 qemu_chr_fe_close(s);
248 /* We're connecting to an already opened device, so let's make sure we
249 also get the open event */
251 qemu_chr_be_generic_open(s);
255 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
260 static CharDriverState *qemu_chr_open_null(void)
262 CharDriverState *chr;
264 chr = g_malloc0(sizeof(CharDriverState));
265 chr->chr_write = null_chr_write;
269 /* MUX driver for serial I/O splitting */
271 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
272 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
274 IOCanReadHandler *chr_can_read[MAX_MUX];
275 IOReadHandler *chr_read[MAX_MUX];
276 IOEventHandler *chr_event[MAX_MUX];
277 void *ext_opaque[MAX_MUX];
278 CharDriverState *drv;
283 /* Intermediate input buffer allows to catch escape sequences even if the
284 currently active device is not accepting any input - but only until it
286 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
291 int64_t timestamps_start;
295 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
297 MuxDriver *d = chr->opaque;
299 if (!d->timestamps) {
300 ret = d->drv->chr_write(d->drv, buf, len);
305 for (i = 0; i < len; i++) {
311 ti = qemu_get_clock_ms(rt_clock);
312 if (d->timestamps_start == -1)
313 d->timestamps_start = ti;
314 ti -= d->timestamps_start;
316 snprintf(buf1, sizeof(buf1),
317 "[%02d:%02d:%02d.%03d] ",
322 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
325 ret += d->drv->chr_write(d->drv, buf+i, 1);
326 if (buf[i] == '\n') {
334 static const char * const mux_help[] = {
335 "% h print this help\n\r",
336 "% x exit emulator\n\r",
337 "% s save disk data back to file (if -snapshot)\n\r",
338 "% t toggle console timestamps\n\r"
339 "% b send break (magic sysrq)\n\r",
340 "% c switch between console and monitor\n\r",
345 int term_escape_char = 0x01; /* ctrl-a is used for escape */
346 static void mux_print_help(CharDriverState *chr)
349 char ebuf[15] = "Escape-Char";
350 char cbuf[50] = "\n\r";
352 if (term_escape_char > 0 && term_escape_char < 26) {
353 snprintf(cbuf, sizeof(cbuf), "\n\r");
354 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
356 snprintf(cbuf, sizeof(cbuf),
357 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
360 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
361 for (i = 0; mux_help[i] != NULL; i++) {
362 for (j=0; mux_help[i][j] != '\0'; j++) {
363 if (mux_help[i][j] == '%')
364 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
366 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
371 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
373 if (d->chr_event[mux_nr])
374 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
377 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
379 if (d->term_got_escape) {
380 d->term_got_escape = 0;
381 if (ch == term_escape_char)
390 const char *term = "QEMU: Terminated\n\r";
391 chr->chr_write(chr,(uint8_t *)term,strlen(term));
399 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
402 /* Switch to the next registered device */
403 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
405 if (d->focus >= d->mux_cnt)
407 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
410 d->timestamps = !d->timestamps;
411 d->timestamps_start = -1;
415 } else if (ch == term_escape_char) {
416 d->term_got_escape = 1;
424 static void mux_chr_accept_input(CharDriverState *chr)
426 MuxDriver *d = chr->opaque;
429 while (d->prod[m] != d->cons[m] &&
430 d->chr_can_read[m] &&
431 d->chr_can_read[m](d->ext_opaque[m])) {
432 d->chr_read[m](d->ext_opaque[m],
433 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
437 static int mux_chr_can_read(void *opaque)
439 CharDriverState *chr = opaque;
440 MuxDriver *d = chr->opaque;
443 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
445 if (d->chr_can_read[m])
446 return d->chr_can_read[m](d->ext_opaque[m]);
450 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
452 CharDriverState *chr = opaque;
453 MuxDriver *d = chr->opaque;
457 mux_chr_accept_input (opaque);
459 for(i = 0; i < size; i++)
460 if (mux_proc_byte(chr, d, buf[i])) {
461 if (d->prod[m] == d->cons[m] &&
462 d->chr_can_read[m] &&
463 d->chr_can_read[m](d->ext_opaque[m]))
464 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
466 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
470 static void mux_chr_event(void *opaque, int event)
472 CharDriverState *chr = opaque;
473 MuxDriver *d = chr->opaque;
476 /* Send the event to all registered listeners */
477 for (i = 0; i < d->mux_cnt; i++)
478 mux_chr_send_event(d, i, event);
481 static void mux_chr_update_read_handler(CharDriverState *chr)
483 MuxDriver *d = chr->opaque;
485 if (d->mux_cnt >= MAX_MUX) {
486 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
489 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
490 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
491 d->chr_read[d->mux_cnt] = chr->chr_read;
492 d->chr_event[d->mux_cnt] = chr->chr_event;
493 /* Fix up the real driver with mux routines */
494 if (d->mux_cnt == 0) {
495 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
498 if (d->focus != -1) {
499 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
501 d->focus = d->mux_cnt;
503 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
506 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
508 CharDriverState *chr;
511 chr = g_malloc0(sizeof(CharDriverState));
512 d = g_malloc0(sizeof(MuxDriver));
517 chr->chr_write = mux_chr_write;
518 chr->chr_update_read_handler = mux_chr_update_read_handler;
519 chr->chr_accept_input = mux_chr_accept_input;
520 /* Frontend guest-open / -close notification is not support with muxes */
521 chr->chr_guest_open = NULL;
522 chr->chr_guest_close = NULL;
524 /* Muxes are always open on creation */
525 qemu_chr_be_generic_open(chr);
532 int send_all(int fd, const void *buf, int len1)
538 ret = send(fd, buf, len, 0);
540 errno = WSAGetLastError();
541 if (errno != WSAEWOULDBLOCK) {
544 } else if (ret == 0) {
556 int send_all(int fd, const void *_buf, int len1)
559 const uint8_t *buf = _buf;
563 ret = write(fd, buf, len);
565 if (errno != EINTR && errno != EAGAIN)
567 } else if (ret == 0) {
577 int recv_all(int fd, void *_buf, int len1, bool single_read)
583 while ((len > 0) && (ret = read(fd, buf, len)) != 0) {
585 if (errno != EINTR && errno != EAGAIN) {
602 typedef struct IOWatchPoll
607 IOCanReadHandler *fd_can_read;
610 QTAILQ_ENTRY(IOWatchPoll) node;
613 static QTAILQ_HEAD(, IOWatchPoll) io_watch_poll_list =
614 QTAILQ_HEAD_INITIALIZER(io_watch_poll_list);
616 static IOWatchPoll *io_watch_poll_from_source(GSource *source)
620 QTAILQ_FOREACH(i, &io_watch_poll_list, node) {
621 if (i->src == source) {
629 static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
631 IOWatchPoll *iwp = io_watch_poll_from_source(source);
633 iwp->max_size = iwp->fd_can_read(iwp->opaque);
634 if (iwp->max_size == 0) {
638 return g_io_watch_funcs.prepare(source, timeout_);
641 static gboolean io_watch_poll_check(GSource *source)
643 IOWatchPoll *iwp = io_watch_poll_from_source(source);
645 if (iwp->max_size == 0) {
649 return g_io_watch_funcs.check(source);
652 static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
655 return g_io_watch_funcs.dispatch(source, callback, user_data);
658 static void io_watch_poll_finalize(GSource *source)
660 IOWatchPoll *iwp = io_watch_poll_from_source(source);
661 QTAILQ_REMOVE(&io_watch_poll_list, iwp, node);
662 g_io_watch_funcs.finalize(source);
665 static GSourceFuncs io_watch_poll_funcs = {
666 .prepare = io_watch_poll_prepare,
667 .check = io_watch_poll_check,
668 .dispatch = io_watch_poll_dispatch,
669 .finalize = io_watch_poll_finalize,
672 /* Can only be used for read */
673 static guint io_add_watch_poll(GIOChannel *channel,
674 IOCanReadHandler *fd_can_read,
682 src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
683 g_source_set_funcs(src, &io_watch_poll_funcs);
684 g_source_set_callback(src, (GSourceFunc)fd_read, user_data, NULL);
685 tag = g_source_attach(src, NULL);
688 iwp = g_malloc0(sizeof(*iwp));
691 iwp->fd_can_read = fd_can_read;
692 iwp->opaque = user_data;
694 QTAILQ_INSERT_HEAD(&io_watch_poll_list, iwp, node);
700 static GIOChannel *io_channel_from_fd(int fd)
708 chan = g_io_channel_unix_new(fd);
710 g_io_channel_set_encoding(chan, NULL, NULL);
711 g_io_channel_set_buffered(chan, FALSE);
717 static GIOChannel *io_channel_from_socket(int fd)
726 chan = g_io_channel_win32_new_socket(fd);
728 chan = g_io_channel_unix_new(fd);
731 g_io_channel_set_encoding(chan, NULL, NULL);
732 g_io_channel_set_buffered(chan, FALSE);
737 static int io_channel_send_all(GIOChannel *fd, const void *_buf, int len1)
742 const uint8_t *buf = _buf;
746 status = g_io_channel_write_chars(fd, (const gchar *)buf, len,
747 &bytes_written, NULL);
748 if (status != G_IO_STATUS_NORMAL) {
749 if (status == G_IO_STATUS_AGAIN) {
756 } else if (status == G_IO_STATUS_EOF) {
759 buf += bytes_written;
760 len -= bytes_written;
768 typedef struct FDCharDriver {
769 CharDriverState *chr;
770 GIOChannel *fd_in, *fd_out;
773 QTAILQ_ENTRY(FDCharDriver) node;
776 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
778 FDCharDriver *s = chr->opaque;
780 return io_channel_send_all(s->fd_out, buf, len);
783 static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
785 CharDriverState *chr = opaque;
786 FDCharDriver *s = chr->opaque;
788 uint8_t buf[READ_BUF_LEN];
793 if (len > s->max_size) {
800 status = g_io_channel_read_chars(chan, (gchar *)buf,
801 len, &bytes_read, NULL);
802 if (status == G_IO_STATUS_EOF) {
803 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
806 if (status == G_IO_STATUS_NORMAL) {
807 qemu_chr_be_write(chr, buf, bytes_read);
813 static int fd_chr_read_poll(void *opaque)
815 CharDriverState *chr = opaque;
816 FDCharDriver *s = chr->opaque;
818 s->max_size = qemu_chr_be_can_write(chr);
822 static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
824 FDCharDriver *s = chr->opaque;
825 return g_io_create_watch(s->fd_out, cond);
828 static void fd_chr_update_read_handler(CharDriverState *chr)
830 FDCharDriver *s = chr->opaque;
833 g_source_remove(s->fd_in_tag);
837 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
841 static void fd_chr_close(struct CharDriverState *chr)
843 FDCharDriver *s = chr->opaque;
846 g_source_remove(s->fd_in_tag);
851 g_io_channel_unref(s->fd_in);
854 g_io_channel_unref(s->fd_out);
858 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
861 /* open a character device to a unix fd */
862 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
864 CharDriverState *chr;
867 chr = g_malloc0(sizeof(CharDriverState));
868 s = g_malloc0(sizeof(FDCharDriver));
869 s->fd_in = io_channel_from_fd(fd_in);
870 s->fd_out = io_channel_from_fd(fd_out);
871 fcntl(fd_out, F_SETFL, O_NONBLOCK);
874 chr->chr_add_watch = fd_chr_add_watch;
875 chr->chr_write = fd_chr_write;
876 chr->chr_update_read_handler = fd_chr_update_read_handler;
877 chr->chr_close = fd_chr_close;
879 qemu_chr_be_generic_open(chr);
884 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
887 char filename_in[256], filename_out[256];
888 const char *filename = opts->device;
890 if (filename == NULL) {
891 fprintf(stderr, "chardev: pipe: no filename given\n");
895 snprintf(filename_in, 256, "%s.in", filename);
896 snprintf(filename_out, 256, "%s.out", filename);
897 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
898 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
899 if (fd_in < 0 || fd_out < 0) {
904 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
909 return qemu_chr_open_fd(fd_in, fd_out);
912 /* init terminal so that we can grab keys */
913 static struct termios oldtty;
914 static int old_fd0_flags;
915 static bool stdio_allow_signal;
917 static void term_exit(void)
919 tcsetattr (0, TCSANOW, &oldtty);
920 fcntl(0, F_SETFL, old_fd0_flags);
923 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
929 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
930 |INLCR|IGNCR|ICRNL|IXON);
931 tty.c_oflag |= OPOST;
932 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
933 tty.c_cflag &= ~(CSIZE|PARENB);
938 /* if graphical mode, we allow Ctrl-C handling */
939 if (!stdio_allow_signal)
940 tty.c_lflag &= ~ISIG;
942 tcsetattr (0, TCSANOW, &tty);
945 static void qemu_chr_close_stdio(struct CharDriverState *chr)
951 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
953 CharDriverState *chr;
955 if (is_daemonized()) {
956 error_report("cannot use stdio with -daemonize");
959 old_fd0_flags = fcntl(0, F_GETFL);
960 tcgetattr (0, &oldtty);
961 fcntl(0, F_SETFL, O_NONBLOCK);
964 chr = qemu_chr_open_fd(0, 1);
965 chr->chr_close = qemu_chr_close_stdio;
966 chr->chr_set_echo = qemu_chr_set_echo_stdio;
967 stdio_allow_signal = display_type != DT_NOGRAPHIC;
968 if (opts->has_signal) {
969 stdio_allow_signal = opts->signal;
971 qemu_chr_fe_set_echo(chr, false);
977 /* Once Solaris has openpty(), this is going to be removed. */
978 static int openpty(int *amaster, int *aslave, char *name,
979 struct termios *termp, struct winsize *winp)
982 int mfd = -1, sfd = -1;
984 *amaster = *aslave = -1;
986 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
990 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
993 if ((slave = ptsname(mfd)) == NULL)
996 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
999 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
1000 (termp != NULL && tcgetattr(sfd, termp) < 0))
1008 ioctl(sfd, TIOCSWINSZ, winp);
1019 static void cfmakeraw (struct termios *termios_p)
1021 termios_p->c_iflag &=
1022 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
1023 termios_p->c_oflag &= ~OPOST;
1024 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
1025 termios_p->c_cflag &= ~(CSIZE|PARENB);
1026 termios_p->c_cflag |= CS8;
1028 termios_p->c_cc[VMIN] = 0;
1029 termios_p->c_cc[VTIME] = 0;
1033 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1034 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1035 || defined(__GLIBC__)
1037 #define HAVE_CHARDEV_TTY 1
1048 static void pty_chr_update_read_handler(CharDriverState *chr);
1049 static void pty_chr_state(CharDriverState *chr, int connected);
1051 static gboolean pty_chr_timer(gpointer opaque)
1053 struct CharDriverState *chr = opaque;
1054 PtyCharDriver *s = chr->opaque;
1060 /* If we arrive here without polling being cleared due
1061 * read returning -EIO, then we are (re-)connected */
1062 pty_chr_state(chr, 1);
1067 pty_chr_update_read_handler(chr);
1073 static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1075 PtyCharDriver *s = chr->opaque;
1078 g_source_remove(s->timer_tag);
1083 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1085 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1089 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1091 PtyCharDriver *s = chr->opaque;
1093 if (!s->connected) {
1094 /* guest sends data, check for (re-)connect */
1095 pty_chr_update_read_handler(chr);
1098 return io_channel_send_all(s->fd, buf, len);
1101 static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1103 PtyCharDriver *s = chr->opaque;
1104 return g_io_create_watch(s->fd, cond);
1107 static int pty_chr_read_poll(void *opaque)
1109 CharDriverState *chr = opaque;
1110 PtyCharDriver *s = chr->opaque;
1112 s->read_bytes = qemu_chr_be_can_write(chr);
1113 return s->read_bytes;
1116 static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
1118 CharDriverState *chr = opaque;
1119 PtyCharDriver *s = chr->opaque;
1121 uint8_t buf[READ_BUF_LEN];
1125 if (len > s->read_bytes)
1126 len = s->read_bytes;
1129 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1130 if (status != G_IO_STATUS_NORMAL) {
1131 pty_chr_state(chr, 0);
1134 pty_chr_state(chr, 1);
1135 qemu_chr_be_write(chr, buf, size);
1140 static void pty_chr_update_read_handler(CharDriverState *chr)
1142 PtyCharDriver *s = chr->opaque;
1145 g_source_remove(s->fd_tag);
1148 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
1151 * Short timeout here: just need wait long enougth that qemu makes
1152 * it through the poll loop once. When reconnected we want a
1153 * short timeout so we notice it almost instantly. Otherwise
1154 * read() gives us -EIO instantly, making pty_chr_state() reset the
1155 * timeout to the normal (much longer) poll interval before the
1158 pty_chr_rearm_timer(chr, 10);
1161 static void pty_chr_state(CharDriverState *chr, int connected)
1163 PtyCharDriver *s = chr->opaque;
1166 g_source_remove(s->fd_tag);
1170 /* (re-)connect poll interval for idle guests: once per second.
1171 * We check more frequently in case the guests sends data to
1172 * the virtual device linked to our pty. */
1173 pty_chr_rearm_timer(chr, 1000);
1176 qemu_chr_be_generic_open(chr);
1182 static void pty_chr_close(struct CharDriverState *chr)
1184 PtyCharDriver *s = chr->opaque;
1188 g_source_remove(s->fd_tag);
1190 fd = g_io_channel_unix_get_fd(s->fd);
1191 g_io_channel_unref(s->fd);
1194 g_source_remove(s->timer_tag);
1197 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1200 static CharDriverState *qemu_chr_open_pty(const char *id,
1203 CharDriverState *chr;
1206 int master_fd, slave_fd;
1207 #if defined(__OpenBSD__) || defined(__DragonFly__)
1208 char pty_name[PATH_MAX];
1209 #define q_ptsname(x) pty_name
1211 char *pty_name = NULL;
1212 #define q_ptsname(x) ptsname(x)
1215 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1219 /* Set raw attributes on the pty. */
1220 tcgetattr(slave_fd, &tty);
1222 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1225 chr = g_malloc0(sizeof(CharDriverState));
1227 chr->filename = g_strdup_printf("pty:%s", q_ptsname(master_fd));
1228 ret->pty = g_strdup(q_ptsname(master_fd));
1229 ret->has_pty = true;
1231 fprintf(stderr, "char device redirected to %s (label %s)\n",
1232 q_ptsname(master_fd), id);
1234 s = g_malloc0(sizeof(PtyCharDriver));
1236 chr->chr_write = pty_chr_write;
1237 chr->chr_update_read_handler = pty_chr_update_read_handler;
1238 chr->chr_close = pty_chr_close;
1239 chr->chr_add_watch = pty_chr_add_watch;
1241 s->fd = io_channel_from_fd(master_fd);
1247 static void tty_serial_init(int fd, int speed,
1248 int parity, int data_bits, int stop_bits)
1254 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1255 speed, parity, data_bits, stop_bits);
1257 tcgetattr (fd, &tty);
1259 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1260 speed = speed * 10 / 11;
1277 /* Non-Posix values follow. They may be unsupported on some systems. */
1279 check_speed(115200);
1281 check_speed(230400);
1284 check_speed(460800);
1287 check_speed(500000);
1290 check_speed(576000);
1293 check_speed(921600);
1296 check_speed(1000000);
1299 check_speed(1152000);
1302 check_speed(1500000);
1305 check_speed(2000000);
1308 check_speed(2500000);
1311 check_speed(3000000);
1314 check_speed(3500000);
1317 check_speed(4000000);
1322 cfsetispeed(&tty, spd);
1323 cfsetospeed(&tty, spd);
1325 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1326 |INLCR|IGNCR|ICRNL|IXON);
1327 tty.c_oflag |= OPOST;
1328 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1329 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1350 tty.c_cflag |= PARENB;
1353 tty.c_cflag |= PARENB | PARODD;
1357 tty.c_cflag |= CSTOPB;
1359 tcsetattr (fd, TCSANOW, &tty);
1362 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1364 FDCharDriver *s = chr->opaque;
1367 case CHR_IOCTL_SERIAL_SET_PARAMS:
1369 QEMUSerialSetParams *ssp = arg;
1370 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1371 ssp->speed, ssp->parity,
1372 ssp->data_bits, ssp->stop_bits);
1375 case CHR_IOCTL_SERIAL_SET_BREAK:
1377 int enable = *(int *)arg;
1379 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1383 case CHR_IOCTL_SERIAL_GET_TIOCM:
1386 int *targ = (int *)arg;
1387 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1389 if (sarg & TIOCM_CTS)
1390 *targ |= CHR_TIOCM_CTS;
1391 if (sarg & TIOCM_CAR)
1392 *targ |= CHR_TIOCM_CAR;
1393 if (sarg & TIOCM_DSR)
1394 *targ |= CHR_TIOCM_DSR;
1395 if (sarg & TIOCM_RI)
1396 *targ |= CHR_TIOCM_RI;
1397 if (sarg & TIOCM_DTR)
1398 *targ |= CHR_TIOCM_DTR;
1399 if (sarg & TIOCM_RTS)
1400 *targ |= CHR_TIOCM_RTS;
1403 case CHR_IOCTL_SERIAL_SET_TIOCM:
1405 int sarg = *(int *)arg;
1407 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1408 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1409 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1410 if (sarg & CHR_TIOCM_CTS)
1412 if (sarg & CHR_TIOCM_CAR)
1414 if (sarg & CHR_TIOCM_DSR)
1416 if (sarg & CHR_TIOCM_RI)
1418 if (sarg & CHR_TIOCM_DTR)
1420 if (sarg & CHR_TIOCM_RTS)
1422 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1431 static void qemu_chr_close_tty(CharDriverState *chr)
1433 FDCharDriver *s = chr->opaque;
1437 fd = g_io_channel_unix_get_fd(s->fd_in);
1447 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1449 CharDriverState *chr;
1451 tty_serial_init(fd, 115200, 'N', 8, 1);
1452 chr = qemu_chr_open_fd(fd, fd);
1453 chr->chr_ioctl = tty_serial_ioctl;
1454 chr->chr_close = qemu_chr_close_tty;
1457 #endif /* __linux__ || __sun__ */
1459 #if defined(__linux__)
1461 #define HAVE_CHARDEV_PARPORT 1
1466 } ParallelCharDriver;
1468 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1470 if (s->mode != mode) {
1472 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1479 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1481 ParallelCharDriver *drv = chr->opaque;
1486 case CHR_IOCTL_PP_READ_DATA:
1487 if (ioctl(fd, PPRDATA, &b) < 0)
1489 *(uint8_t *)arg = b;
1491 case CHR_IOCTL_PP_WRITE_DATA:
1492 b = *(uint8_t *)arg;
1493 if (ioctl(fd, PPWDATA, &b) < 0)
1496 case CHR_IOCTL_PP_READ_CONTROL:
1497 if (ioctl(fd, PPRCONTROL, &b) < 0)
1499 /* Linux gives only the lowest bits, and no way to know data
1500 direction! For better compatibility set the fixed upper
1502 *(uint8_t *)arg = b | 0xc0;
1504 case CHR_IOCTL_PP_WRITE_CONTROL:
1505 b = *(uint8_t *)arg;
1506 if (ioctl(fd, PPWCONTROL, &b) < 0)
1509 case CHR_IOCTL_PP_READ_STATUS:
1510 if (ioctl(fd, PPRSTATUS, &b) < 0)
1512 *(uint8_t *)arg = b;
1514 case CHR_IOCTL_PP_DATA_DIR:
1515 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1518 case CHR_IOCTL_PP_EPP_READ_ADDR:
1519 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1520 struct ParallelIOArg *parg = arg;
1521 int n = read(fd, parg->buffer, parg->count);
1522 if (n != parg->count) {
1527 case CHR_IOCTL_PP_EPP_READ:
1528 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1529 struct ParallelIOArg *parg = arg;
1530 int n = read(fd, parg->buffer, parg->count);
1531 if (n != parg->count) {
1536 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1537 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1538 struct ParallelIOArg *parg = arg;
1539 int n = write(fd, parg->buffer, parg->count);
1540 if (n != parg->count) {
1545 case CHR_IOCTL_PP_EPP_WRITE:
1546 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1547 struct ParallelIOArg *parg = arg;
1548 int n = write(fd, parg->buffer, parg->count);
1549 if (n != parg->count) {
1560 static void pp_close(CharDriverState *chr)
1562 ParallelCharDriver *drv = chr->opaque;
1565 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1566 ioctl(fd, PPRELEASE);
1569 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1572 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1574 CharDriverState *chr;
1575 ParallelCharDriver *drv;
1577 if (ioctl(fd, PPCLAIM) < 0) {
1582 drv = g_malloc0(sizeof(ParallelCharDriver));
1584 drv->mode = IEEE1284_MODE_COMPAT;
1586 chr = g_malloc0(sizeof(CharDriverState));
1587 chr->chr_write = null_chr_write;
1588 chr->chr_ioctl = pp_ioctl;
1589 chr->chr_close = pp_close;
1592 qemu_chr_be_generic_open(chr);
1596 #endif /* __linux__ */
1598 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1600 #define HAVE_CHARDEV_PARPORT 1
1602 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1604 int fd = (int)(intptr_t)chr->opaque;
1608 case CHR_IOCTL_PP_READ_DATA:
1609 if (ioctl(fd, PPIGDATA, &b) < 0)
1611 *(uint8_t *)arg = b;
1613 case CHR_IOCTL_PP_WRITE_DATA:
1614 b = *(uint8_t *)arg;
1615 if (ioctl(fd, PPISDATA, &b) < 0)
1618 case CHR_IOCTL_PP_READ_CONTROL:
1619 if (ioctl(fd, PPIGCTRL, &b) < 0)
1621 *(uint8_t *)arg = b;
1623 case CHR_IOCTL_PP_WRITE_CONTROL:
1624 b = *(uint8_t *)arg;
1625 if (ioctl(fd, PPISCTRL, &b) < 0)
1628 case CHR_IOCTL_PP_READ_STATUS:
1629 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1631 *(uint8_t *)arg = b;
1639 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1641 CharDriverState *chr;
1643 chr = g_malloc0(sizeof(CharDriverState));
1644 chr->opaque = (void *)(intptr_t)fd;
1645 chr->chr_write = null_chr_write;
1646 chr->chr_ioctl = pp_ioctl;
1655 HANDLE hcom, hrecv, hsend;
1656 OVERLAPPED orecv, osend;
1663 HANDLE hInputReadyEvent;
1664 HANDLE hInputDoneEvent;
1665 HANDLE hInputThread;
1666 uint8_t win_stdio_buf;
1667 } WinStdioCharState;
1669 #define NSENDBUF 2048
1670 #define NRECVBUF 2048
1671 #define MAXCONNECT 1
1672 #define NTIMEOUT 5000
1674 static int win_chr_poll(void *opaque);
1675 static int win_chr_pipe_poll(void *opaque);
1677 static void win_chr_close(CharDriverState *chr)
1679 WinCharState *s = chr->opaque;
1682 CloseHandle(s->hsend);
1686 CloseHandle(s->hrecv);
1690 CloseHandle(s->hcom);
1694 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1696 qemu_del_polling_cb(win_chr_poll, chr);
1698 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1701 static int win_chr_init(CharDriverState *chr, const char *filename)
1703 WinCharState *s = chr->opaque;
1705 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1710 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1712 fprintf(stderr, "Failed CreateEvent\n");
1715 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1717 fprintf(stderr, "Failed CreateEvent\n");
1721 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1722 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1723 if (s->hcom == INVALID_HANDLE_VALUE) {
1724 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1729 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1730 fprintf(stderr, "Failed SetupComm\n");
1734 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1735 size = sizeof(COMMCONFIG);
1736 GetDefaultCommConfig(filename, &comcfg, &size);
1737 comcfg.dcb.DCBlength = sizeof(DCB);
1738 CommConfigDialog(filename, NULL, &comcfg);
1740 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1741 fprintf(stderr, "Failed SetCommState\n");
1745 if (!SetCommMask(s->hcom, EV_ERR)) {
1746 fprintf(stderr, "Failed SetCommMask\n");
1750 cto.ReadIntervalTimeout = MAXDWORD;
1751 if (!SetCommTimeouts(s->hcom, &cto)) {
1752 fprintf(stderr, "Failed SetCommTimeouts\n");
1756 if (!ClearCommError(s->hcom, &err, &comstat)) {
1757 fprintf(stderr, "Failed ClearCommError\n");
1760 qemu_add_polling_cb(win_chr_poll, chr);
1768 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1770 WinCharState *s = chr->opaque;
1771 DWORD len, ret, size, err;
1774 ZeroMemory(&s->osend, sizeof(s->osend));
1775 s->osend.hEvent = s->hsend;
1778 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1780 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1782 err = GetLastError();
1783 if (err == ERROR_IO_PENDING) {
1784 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1802 static int win_chr_read_poll(CharDriverState *chr)
1804 WinCharState *s = chr->opaque;
1806 s->max_size = qemu_chr_be_can_write(chr);
1810 static void win_chr_readfile(CharDriverState *chr)
1812 WinCharState *s = chr->opaque;
1814 uint8_t buf[READ_BUF_LEN];
1817 ZeroMemory(&s->orecv, sizeof(s->orecv));
1818 s->orecv.hEvent = s->hrecv;
1819 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1821 err = GetLastError();
1822 if (err == ERROR_IO_PENDING) {
1823 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1828 qemu_chr_be_write(chr, buf, size);
1832 static void win_chr_read(CharDriverState *chr)
1834 WinCharState *s = chr->opaque;
1836 if (s->len > s->max_size)
1837 s->len = s->max_size;
1841 win_chr_readfile(chr);
1844 static int win_chr_poll(void *opaque)
1846 CharDriverState *chr = opaque;
1847 WinCharState *s = chr->opaque;
1851 ClearCommError(s->hcom, &comerr, &status);
1852 if (status.cbInQue > 0) {
1853 s->len = status.cbInQue;
1854 win_chr_read_poll(chr);
1861 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1863 CharDriverState *chr;
1866 chr = g_malloc0(sizeof(CharDriverState));
1867 s = g_malloc0(sizeof(WinCharState));
1869 chr->chr_write = win_chr_write;
1870 chr->chr_close = win_chr_close;
1872 if (win_chr_init(chr, filename) < 0) {
1877 qemu_chr_be_generic_open(chr);
1881 static int win_chr_pipe_poll(void *opaque)
1883 CharDriverState *chr = opaque;
1884 WinCharState *s = chr->opaque;
1887 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1890 win_chr_read_poll(chr);
1897 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1899 WinCharState *s = chr->opaque;
1907 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1909 fprintf(stderr, "Failed CreateEvent\n");
1912 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1914 fprintf(stderr, "Failed CreateEvent\n");
1918 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1919 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1920 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1922 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1923 if (s->hcom == INVALID_HANDLE_VALUE) {
1924 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1929 ZeroMemory(&ov, sizeof(ov));
1930 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1931 ret = ConnectNamedPipe(s->hcom, &ov);
1933 fprintf(stderr, "Failed ConnectNamedPipe\n");
1937 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1939 fprintf(stderr, "Failed GetOverlappedResult\n");
1941 CloseHandle(ov.hEvent);
1948 CloseHandle(ov.hEvent);
1951 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1960 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
1962 const char *filename = opts->device;
1963 CharDriverState *chr;
1966 chr = g_malloc0(sizeof(CharDriverState));
1967 s = g_malloc0(sizeof(WinCharState));
1969 chr->chr_write = win_chr_write;
1970 chr->chr_close = win_chr_close;
1972 if (win_chr_pipe_init(chr, filename) < 0) {
1977 qemu_chr_be_generic_open(chr);
1981 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1983 CharDriverState *chr;
1986 chr = g_malloc0(sizeof(CharDriverState));
1987 s = g_malloc0(sizeof(WinCharState));
1990 chr->chr_write = win_chr_write;
1991 qemu_chr_be_generic_open(chr);
1995 static CharDriverState *qemu_chr_open_win_con(void)
1997 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
2000 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
2002 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
2009 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
2019 static void win_stdio_wait_func(void *opaque)
2021 CharDriverState *chr = opaque;
2022 WinStdioCharState *stdio = chr->opaque;
2023 INPUT_RECORD buf[4];
2028 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
2032 /* Avoid error storm */
2033 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
2037 for (i = 0; i < dwSize; i++) {
2038 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2040 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2042 if (kev->uChar.AsciiChar != 0) {
2043 for (j = 0; j < kev->wRepeatCount; j++) {
2044 if (qemu_chr_be_can_write(chr)) {
2045 uint8_t c = kev->uChar.AsciiChar;
2046 qemu_chr_be_write(chr, &c, 1);
2054 static DWORD WINAPI win_stdio_thread(LPVOID param)
2056 CharDriverState *chr = param;
2057 WinStdioCharState *stdio = chr->opaque;
2063 /* Wait for one byte */
2064 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2066 /* Exit in case of error, continue if nothing read */
2074 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2075 if (stdio->win_stdio_buf == '\r') {
2079 /* Signal the main thread and wait until the byte was eaten */
2080 if (!SetEvent(stdio->hInputReadyEvent)) {
2083 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2089 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2093 static void win_stdio_thread_wait_func(void *opaque)
2095 CharDriverState *chr = opaque;
2096 WinStdioCharState *stdio = chr->opaque;
2098 if (qemu_chr_be_can_write(chr)) {
2099 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2102 SetEvent(stdio->hInputDoneEvent);
2105 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2107 WinStdioCharState *stdio = chr->opaque;
2110 GetConsoleMode(stdio->hStdIn, &dwMode);
2113 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2115 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2119 static void win_stdio_close(CharDriverState *chr)
2121 WinStdioCharState *stdio = chr->opaque;
2123 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2124 CloseHandle(stdio->hInputReadyEvent);
2126 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2127 CloseHandle(stdio->hInputDoneEvent);
2129 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2130 TerminateThread(stdio->hInputThread, 0);
2133 g_free(chr->opaque);
2137 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
2139 CharDriverState *chr;
2140 WinStdioCharState *stdio;
2144 chr = g_malloc0(sizeof(CharDriverState));
2145 stdio = g_malloc0(sizeof(WinStdioCharState));
2147 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2148 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2149 fprintf(stderr, "cannot open stdio: invalid handle\n");
2153 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2155 chr->opaque = stdio;
2156 chr->chr_write = win_stdio_write;
2157 chr->chr_close = win_stdio_close;
2160 if (qemu_add_wait_object(stdio->hStdIn,
2161 win_stdio_wait_func, chr)) {
2162 fprintf(stderr, "qemu_add_wait_object: failed\n");
2167 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2168 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2169 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2172 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2173 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2174 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2175 fprintf(stderr, "cannot create stdio thread or event\n");
2178 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2179 win_stdio_thread_wait_func, chr)) {
2180 fprintf(stderr, "qemu_add_wait_object: failed\n");
2184 dwMode |= ENABLE_LINE_INPUT;
2187 /* set the terminal in raw mode */
2188 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2189 dwMode |= ENABLE_PROCESSED_INPUT;
2192 SetConsoleMode(stdio->hStdIn, dwMode);
2194 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2195 qemu_chr_fe_set_echo(chr, false);
2199 #endif /* !_WIN32 */
2202 /***********************************************************/
2203 /* UDP Net console */
2209 uint8_t buf[READ_BUF_LEN];
2215 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2217 NetCharDriver *s = chr->opaque;
2218 gsize bytes_written;
2221 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2222 if (status == G_IO_STATUS_EOF) {
2224 } else if (status != G_IO_STATUS_NORMAL) {
2228 return bytes_written;
2231 static int udp_chr_read_poll(void *opaque)
2233 CharDriverState *chr = opaque;
2234 NetCharDriver *s = chr->opaque;
2236 s->max_size = qemu_chr_be_can_write(chr);
2238 /* If there were any stray characters in the queue process them
2241 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2242 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2244 s->max_size = qemu_chr_be_can_write(chr);
2249 static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2251 CharDriverState *chr = opaque;
2252 NetCharDriver *s = chr->opaque;
2253 gsize bytes_read = 0;
2256 if (s->max_size == 0)
2258 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2260 s->bufcnt = bytes_read;
2261 s->bufptr = s->bufcnt;
2262 if (status != G_IO_STATUS_NORMAL) {
2267 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2268 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2270 s->max_size = qemu_chr_be_can_write(chr);
2276 static void udp_chr_update_read_handler(CharDriverState *chr)
2278 NetCharDriver *s = chr->opaque;
2281 g_source_remove(s->tag);
2286 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
2290 static void udp_chr_close(CharDriverState *chr)
2292 NetCharDriver *s = chr->opaque;
2294 g_source_remove(s->tag);
2297 g_io_channel_unref(s->chan);
2301 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2304 static CharDriverState *qemu_chr_open_udp_fd(int fd)
2306 CharDriverState *chr = NULL;
2307 NetCharDriver *s = NULL;
2309 chr = g_malloc0(sizeof(CharDriverState));
2310 s = g_malloc0(sizeof(NetCharDriver));
2313 s->chan = io_channel_from_socket(s->fd);
2317 chr->chr_write = udp_chr_write;
2318 chr->chr_update_read_handler = udp_chr_update_read_handler;
2319 chr->chr_close = udp_chr_close;
2323 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2325 Error *local_err = NULL;
2328 fd = inet_dgram_opts(opts, &local_err);
2332 return qemu_chr_open_udp_fd(fd);
2335 /***********************************************************/
2336 /* TCP Net console */
2340 GIOChannel *chan, *listen_chan;
2341 guint tag, listen_tag;
2351 static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
2353 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2355 TCPCharDriver *s = chr->opaque;
2357 return io_channel_send_all(s->chan, buf, len);
2359 /* XXX: indicate an error ? */
2364 static int tcp_chr_read_poll(void *opaque)
2366 CharDriverState *chr = opaque;
2367 TCPCharDriver *s = chr->opaque;
2370 s->max_size = qemu_chr_be_can_write(chr);
2375 #define IAC_BREAK 243
2376 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2378 uint8_t *buf, int *size)
2380 /* Handle any telnet client's basic IAC options to satisfy char by
2381 * char mode with no echo. All IAC options will be removed from
2382 * the buf and the do_telnetopt variable will be used to track the
2383 * state of the width of the IAC information.
2385 * IAC commands come in sets of 3 bytes with the exception of the
2386 * "IAC BREAK" command and the double IAC.
2392 for (i = 0; i < *size; i++) {
2393 if (s->do_telnetopt > 1) {
2394 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2395 /* Double IAC means send an IAC */
2399 s->do_telnetopt = 1;
2401 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2402 /* Handle IAC break commands by sending a serial break */
2403 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2408 if (s->do_telnetopt >= 4) {
2409 s->do_telnetopt = 1;
2412 if ((unsigned char)buf[i] == IAC) {
2413 s->do_telnetopt = 2;
2424 static int tcp_get_msgfd(CharDriverState *chr)
2426 TCPCharDriver *s = chr->opaque;
2433 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2435 TCPCharDriver *s = chr->opaque;
2436 struct cmsghdr *cmsg;
2438 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2441 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2442 cmsg->cmsg_level != SOL_SOCKET ||
2443 cmsg->cmsg_type != SCM_RIGHTS)
2446 fd = *((int *)CMSG_DATA(cmsg));
2450 #ifndef MSG_CMSG_CLOEXEC
2451 qemu_set_cloexec(fd);
2459 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2461 TCPCharDriver *s = chr->opaque;
2462 struct msghdr msg = { NULL, };
2463 struct iovec iov[1];
2465 struct cmsghdr cmsg;
2466 char control[CMSG_SPACE(sizeof(int))];
2471 iov[0].iov_base = buf;
2472 iov[0].iov_len = len;
2476 msg.msg_control = &msg_control;
2477 msg.msg_controllen = sizeof(msg_control);
2479 #ifdef MSG_CMSG_CLOEXEC
2480 flags |= MSG_CMSG_CLOEXEC;
2482 ret = recvmsg(s->fd, &msg, flags);
2483 if (ret > 0 && s->is_unix) {
2484 unix_process_msgfd(chr, &msg);
2490 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2492 TCPCharDriver *s = chr->opaque;
2493 return qemu_recv(s->fd, buf, len, 0);
2497 static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2499 TCPCharDriver *s = chr->opaque;
2500 return g_io_create_watch(s->chan, cond);
2503 static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2505 CharDriverState *chr = opaque;
2506 TCPCharDriver *s = chr->opaque;
2507 uint8_t buf[READ_BUF_LEN];
2510 if (!s->connected || s->max_size <= 0) {
2514 if (len > s->max_size)
2516 size = tcp_chr_recv(chr, (void *)buf, len);
2518 /* connection closed */
2520 if (s->listen_chan) {
2521 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2523 g_source_remove(s->tag);
2525 g_io_channel_unref(s->chan);
2529 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2530 } else if (size > 0) {
2531 if (s->do_telnetopt)
2532 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2534 qemu_chr_be_write(chr, buf, size);
2541 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2543 return qemu_chr_open_fd(eventfd, eventfd);
2547 static void tcp_chr_connect(void *opaque)
2549 CharDriverState *chr = opaque;
2550 TCPCharDriver *s = chr->opaque;
2554 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
2556 qemu_chr_be_generic_open(chr);
2559 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2560 static void tcp_chr_telnet_init(int fd)
2563 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2564 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2565 send(fd, (char *)buf, 3, 0);
2566 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2567 send(fd, (char *)buf, 3, 0);
2568 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2569 send(fd, (char *)buf, 3, 0);
2570 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2571 send(fd, (char *)buf, 3, 0);
2574 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2576 TCPCharDriver *s = chr->opaque;
2580 socket_set_nonblock(fd);
2582 socket_set_nodelay(fd);
2584 s->chan = io_channel_from_socket(fd);
2585 g_source_remove(s->listen_tag);
2587 tcp_chr_connect(chr);
2592 static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
2594 CharDriverState *chr = opaque;
2595 TCPCharDriver *s = chr->opaque;
2596 struct sockaddr_in saddr;
2598 struct sockaddr_un uaddr;
2600 struct sockaddr *addr;
2607 len = sizeof(uaddr);
2608 addr = (struct sockaddr *)&uaddr;
2612 len = sizeof(saddr);
2613 addr = (struct sockaddr *)&saddr;
2615 fd = qemu_accept(s->listen_fd, addr, &len);
2616 if (fd < 0 && errno != EINTR) {
2618 } else if (fd >= 0) {
2619 if (s->do_telnetopt)
2620 tcp_chr_telnet_init(fd);
2624 if (tcp_chr_add_client(chr, fd) < 0)
2630 static void tcp_chr_close(CharDriverState *chr)
2632 TCPCharDriver *s = chr->opaque;
2635 g_source_remove(s->tag);
2638 g_io_channel_unref(s->chan);
2642 if (s->listen_fd >= 0) {
2643 if (s->listen_tag) {
2644 g_source_remove(s->listen_tag);
2646 if (s->listen_chan) {
2647 g_io_channel_unref(s->listen_chan);
2649 closesocket(s->listen_fd);
2652 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2655 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2656 bool is_listen, bool is_telnet,
2657 bool is_waitconnect,
2660 CharDriverState *chr = NULL;
2661 TCPCharDriver *s = NULL;
2662 char host[NI_MAXHOST], serv[NI_MAXSERV];
2663 const char *left = "", *right = "";
2664 struct sockaddr_storage ss;
2665 socklen_t ss_len = sizeof(ss);
2667 memset(&ss, 0, ss_len);
2668 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2669 error_setg(errp, "getsockname: %s", strerror(errno));
2673 chr = g_malloc0(sizeof(CharDriverState));
2674 s = g_malloc0(sizeof(TCPCharDriver));
2681 chr->filename = g_malloc(256);
2682 switch (ss.ss_family) {
2686 snprintf(chr->filename, 256, "unix:%s%s",
2687 ((struct sockaddr_un *)(&ss))->sun_path,
2688 is_listen ? ",server" : "");
2696 s->do_nodelay = do_nodelay;
2697 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2698 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2699 snprintf(chr->filename, 256, "%s:%s%s%s:%s%s",
2700 is_telnet ? "telnet" : "tcp",
2701 left, host, right, serv,
2702 is_listen ? ",server" : "");
2707 chr->chr_write = tcp_chr_write;
2708 chr->chr_close = tcp_chr_close;
2709 chr->get_msgfd = tcp_get_msgfd;
2710 chr->chr_add_client = tcp_chr_add_client;
2711 chr->chr_add_watch = tcp_chr_add_watch;
2715 s->listen_chan = io_channel_from_socket(s->listen_fd);
2716 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2718 s->do_telnetopt = 1;
2723 socket_set_nodelay(fd);
2724 s->chan = io_channel_from_socket(s->fd);
2725 tcp_chr_connect(chr);
2728 if (is_listen && is_waitconnect) {
2729 printf("QEMU waiting for connection on: %s\n",
2731 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
2732 socket_set_nonblock(s->listen_fd);
2737 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2739 CharDriverState *chr = NULL;
2740 Error *local_err = NULL;
2748 is_listen = qemu_opt_get_bool(opts, "server", 0);
2749 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2750 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2751 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2752 is_unix = qemu_opt_get(opts, "path") != NULL;
2758 fd = unix_listen_opts(opts, &local_err);
2760 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2764 fd = inet_listen_opts(opts, 0, &local_err);
2766 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2773 if (!is_waitconnect)
2774 socket_set_nonblock(fd);
2776 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2777 is_waitconnect, &local_err);
2778 if (error_is_set(&local_err)) {
2786 qerror_report_err(local_err);
2787 error_free(local_err);
2793 g_free(chr->opaque);
2799 /***********************************************************/
2800 /* Memory chardev */
2803 size_t outbuf_capacity;
2807 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2809 MemoryDriver *d = chr->opaque;
2811 /* TODO: the QString implementation has the same code, we should
2812 * introduce a generic way to do this in cutils.c */
2813 if (d->outbuf_capacity < d->outbuf_size + len) {
2815 d->outbuf_capacity += len;
2816 d->outbuf_capacity *= 2;
2817 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2820 memcpy(d->outbuf + d->outbuf_size, buf, len);
2821 d->outbuf_size += len;
2826 void qemu_chr_init_mem(CharDriverState *chr)
2830 d = g_malloc(sizeof(*d));
2832 d->outbuf_capacity = 4096;
2833 d->outbuf = g_malloc0(d->outbuf_capacity);
2835 memset(chr, 0, sizeof(*chr));
2837 chr->chr_write = mem_chr_write;
2840 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2842 MemoryDriver *d = chr->opaque;
2843 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2846 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2847 void qemu_chr_close_mem(CharDriverState *chr)
2849 MemoryDriver *d = chr->opaque;
2852 g_free(chr->opaque);
2854 chr->chr_write = NULL;
2857 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2859 const MemoryDriver *d = chr->opaque;
2860 return d->outbuf_size;
2863 /*********************************************************/
2864 /* Ring buffer chardev */
2871 } RingBufCharDriver;
2873 static size_t ringbuf_count(const CharDriverState *chr)
2875 const RingBufCharDriver *d = chr->opaque;
2877 return d->prod - d->cons;
2880 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2882 RingBufCharDriver *d = chr->opaque;
2885 if (!buf || (len < 0)) {
2889 for (i = 0; i < len; i++ ) {
2890 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2891 if (d->prod - d->cons > d->size) {
2892 d->cons = d->prod - d->size;
2899 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2901 RingBufCharDriver *d = chr->opaque;
2904 for (i = 0; i < len && d->cons != d->prod; i++) {
2905 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2911 static void ringbuf_chr_close(struct CharDriverState *chr)
2913 RingBufCharDriver *d = chr->opaque;
2920 static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
2923 CharDriverState *chr;
2924 RingBufCharDriver *d;
2926 chr = g_malloc0(sizeof(CharDriverState));
2927 d = g_malloc(sizeof(*d));
2929 d->size = opts->has_size ? opts->size : 65536;
2931 /* The size must be power of 2 */
2932 if (d->size & (d->size - 1)) {
2933 error_setg(errp, "size of ringbuf chardev must be power of two");
2939 d->cbuf = g_malloc0(d->size);
2942 chr->chr_write = ringbuf_chr_write;
2943 chr->chr_close = ringbuf_chr_close;
2953 static bool chr_is_ringbuf(const CharDriverState *chr)
2955 return chr->chr_write == ringbuf_chr_write;
2958 void qmp_ringbuf_write(const char *device, const char *data,
2959 bool has_format, enum DataFormat format,
2962 CharDriverState *chr;
2963 const uint8_t *write_data;
2967 chr = qemu_chr_find(device);
2969 error_setg(errp, "Device '%s' not found", device);
2973 if (!chr_is_ringbuf(chr)) {
2974 error_setg(errp,"%s is not a ringbuf device", device);
2978 if (has_format && (format == DATA_FORMAT_BASE64)) {
2979 write_data = g_base64_decode(data, &write_count);
2981 write_data = (uint8_t *)data;
2982 write_count = strlen(data);
2985 ret = ringbuf_chr_write(chr, write_data, write_count);
2987 if (write_data != (uint8_t *)data) {
2988 g_free((void *)write_data);
2992 error_setg(errp, "Failed to write to device %s", device);
2997 char *qmp_ringbuf_read(const char *device, int64_t size,
2998 bool has_format, enum DataFormat format,
3001 CharDriverState *chr;
3006 chr = qemu_chr_find(device);
3008 error_setg(errp, "Device '%s' not found", device);
3012 if (!chr_is_ringbuf(chr)) {
3013 error_setg(errp,"%s is not a ringbuf device", device);
3018 error_setg(errp, "size must be greater than zero");
3022 count = ringbuf_count(chr);
3023 size = size > count ? count : size;
3024 read_data = g_malloc(size + 1);
3026 ringbuf_chr_read(chr, read_data, size);
3028 if (has_format && (format == DATA_FORMAT_BASE64)) {
3029 data = g_base64_encode(read_data, size);
3033 * FIXME should read only complete, valid UTF-8 characters up
3034 * to @size bytes. Invalid sequences should be replaced by a
3035 * suitable replacement character. Except when (and only
3036 * when) ring buffer lost characters since last read, initial
3037 * continuation characters should be dropped.
3039 read_data[size] = 0;
3040 data = (char *)read_data;
3046 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
3048 char host[65], port[33], width[8], height[8];
3052 Error *local_err = NULL;
3054 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
3055 if (error_is_set(&local_err)) {
3056 qerror_report_err(local_err);
3057 error_free(local_err);
3061 if (strstart(filename, "mon:", &p)) {
3063 qemu_opt_set(opts, "mux", "on");
3066 if (strcmp(filename, "null") == 0 ||
3067 strcmp(filename, "pty") == 0 ||
3068 strcmp(filename, "msmouse") == 0 ||
3069 strcmp(filename, "braille") == 0 ||
3070 strcmp(filename, "stdio") == 0) {
3071 qemu_opt_set(opts, "backend", filename);
3074 if (strstart(filename, "vc", &p)) {
3075 qemu_opt_set(opts, "backend", "vc");
3077 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3079 qemu_opt_set(opts, "width", width);
3080 qemu_opt_set(opts, "height", height);
3081 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3083 qemu_opt_set(opts, "cols", width);
3084 qemu_opt_set(opts, "rows", height);
3091 if (strcmp(filename, "con:") == 0) {
3092 qemu_opt_set(opts, "backend", "console");
3095 if (strstart(filename, "COM", NULL)) {
3096 qemu_opt_set(opts, "backend", "serial");
3097 qemu_opt_set(opts, "path", filename);
3100 if (strstart(filename, "file:", &p)) {
3101 qemu_opt_set(opts, "backend", "file");
3102 qemu_opt_set(opts, "path", p);
3105 if (strstart(filename, "pipe:", &p)) {
3106 qemu_opt_set(opts, "backend", "pipe");
3107 qemu_opt_set(opts, "path", p);
3110 if (strstart(filename, "tcp:", &p) ||
3111 strstart(filename, "telnet:", &p)) {
3112 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3114 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3117 qemu_opt_set(opts, "backend", "socket");
3118 qemu_opt_set(opts, "host", host);
3119 qemu_opt_set(opts, "port", port);
3120 if (p[pos] == ',') {
3121 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3124 if (strstart(filename, "telnet:", &p))
3125 qemu_opt_set(opts, "telnet", "on");
3128 if (strstart(filename, "udp:", &p)) {
3129 qemu_opt_set(opts, "backend", "udp");
3130 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3132 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3136 qemu_opt_set(opts, "host", host);
3137 qemu_opt_set(opts, "port", port);
3138 if (p[pos] == '@') {
3140 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3142 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3146 qemu_opt_set(opts, "localaddr", host);
3147 qemu_opt_set(opts, "localport", port);
3151 if (strstart(filename, "unix:", &p)) {
3152 qemu_opt_set(opts, "backend", "socket");
3153 if (qemu_opts_do_parse(opts, p, "path") != 0)
3157 if (strstart(filename, "/dev/parport", NULL) ||
3158 strstart(filename, "/dev/ppi", NULL)) {
3159 qemu_opt_set(opts, "backend", "parport");
3160 qemu_opt_set(opts, "path", filename);
3163 if (strstart(filename, "/dev/", NULL)) {
3164 qemu_opt_set(opts, "backend", "tty");
3165 qemu_opt_set(opts, "path", filename);
3170 qemu_opts_del(opts);
3174 static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3177 const char *path = qemu_opt_get(opts, "path");
3180 error_setg(errp, "chardev: file: no filename given");
3183 backend->file = g_new0(ChardevFile, 1);
3184 backend->file->out = g_strdup(path);
3187 static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3190 backend->stdio = g_new0(ChardevStdio, 1);
3191 backend->stdio->has_signal = true;
3192 backend->stdio->signal =
3193 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3196 static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3199 const char *device = qemu_opt_get(opts, "path");
3201 if (device == NULL) {
3202 error_setg(errp, "chardev: serial/tty: no device path given");
3205 backend->serial = g_new0(ChardevHostdev, 1);
3206 backend->serial->device = g_strdup(device);
3209 static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3212 const char *device = qemu_opt_get(opts, "path");
3214 if (device == NULL) {
3215 error_setg(errp, "chardev: parallel: no device path given");
3218 backend->parallel = g_new0(ChardevHostdev, 1);
3219 backend->parallel->device = g_strdup(device);
3222 static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
3225 const char *device = qemu_opt_get(opts, "path");
3227 if (device == NULL) {
3228 error_setg(errp, "chardev: pipe: no device path given");
3231 backend->pipe = g_new0(ChardevHostdev, 1);
3232 backend->pipe->device = g_strdup(device);
3235 static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend,
3240 backend->memory = g_new0(ChardevRingbuf, 1);
3242 val = qemu_opt_get_number(opts, "size", 0);
3244 backend->memory->has_size = true;
3245 backend->memory->size = val;
3249 typedef struct CharDriver {
3252 CharDriverState *(*open)(QemuOpts *opts);
3253 /* new, qapi-based */
3255 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
3258 static GSList *backends;
3260 void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3264 s = g_malloc0(sizeof(*s));
3265 s->name = g_strdup(name);
3268 backends = g_slist_append(backends, s);
3271 void register_char_driver_qapi(const char *name, int kind,
3272 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3276 s = g_malloc0(sizeof(*s));
3277 s->name = g_strdup(name);
3281 backends = g_slist_append(backends, s);
3284 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3285 void (*init)(struct CharDriverState *s),
3289 CharDriverState *chr;
3292 if (qemu_opts_id(opts) == NULL) {
3293 error_setg(errp, "chardev: no id specified");
3297 if (qemu_opt_get(opts, "backend") == NULL) {
3298 error_setg(errp, "chardev: \"%s\" missing backend",
3299 qemu_opts_id(opts));
3302 for (i = backends; i; i = i->next) {
3305 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
3310 error_setg(errp, "chardev: backend \"%s\" not found",
3311 qemu_opt_get(opts, "backend"));
3316 /* using new, qapi init */
3317 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3318 ChardevReturn *ret = NULL;
3319 const char *id = qemu_opts_id(opts);
3320 const char *bid = NULL;
3322 if (qemu_opt_get_bool(opts, "mux", 0)) {
3323 bid = g_strdup_printf("%s-base", id);
3327 backend->kind = cd->kind;
3329 cd->parse(opts, backend, errp);
3330 if (error_is_set(errp)) {
3334 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
3335 if (error_is_set(errp)) {
3340 qapi_free_ChardevBackend(backend);
3341 qapi_free_ChardevReturn(ret);
3342 backend = g_new0(ChardevBackend, 1);
3343 backend->mux = g_new0(ChardevMux, 1);
3344 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3345 backend->mux->chardev = g_strdup(bid);
3346 ret = qmp_chardev_add(id, backend, errp);
3347 if (error_is_set(errp)) {
3352 chr = qemu_chr_find(id);
3355 qapi_free_ChardevBackend(backend);
3356 qapi_free_ChardevReturn(ret);
3360 chr = cd->open(opts);
3362 error_setg(errp, "chardev: opening backend \"%s\" failed",
3363 qemu_opt_get(opts, "backend"));
3368 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3370 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3372 if (qemu_opt_get_bool(opts, "mux", 0)) {
3373 CharDriverState *base = chr;
3374 int len = strlen(qemu_opts_id(opts)) + 6;
3375 base->label = g_malloc(len);
3376 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3377 chr = qemu_chr_open_mux(base);
3378 chr->filename = base->filename;
3379 chr->avail_connections = MAX_MUX;
3380 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3382 chr->avail_connections = 1;
3384 chr->label = g_strdup(qemu_opts_id(opts));
3389 qemu_opts_del(opts);
3393 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3396 CharDriverState *chr;
3400 if (strstart(filename, "chardev:", &p)) {
3401 return qemu_chr_find(p);
3404 opts = qemu_chr_parse_compat(label, filename);
3408 chr = qemu_chr_new_from_opts(opts, init, &err);
3409 if (error_is_set(&err)) {
3410 fprintf(stderr, "%s\n", error_get_pretty(err));
3413 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3414 monitor_init(chr, MONITOR_USE_READLINE);
3419 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3421 if (chr->chr_set_echo) {
3422 chr->chr_set_echo(chr, echo);
3426 void qemu_chr_fe_open(struct CharDriverState *chr)
3432 if (chr->chr_guest_open) {
3433 chr->chr_guest_open(chr);
3437 void qemu_chr_fe_close(struct CharDriverState *chr)
3439 if (!chr->fe_open) {
3443 if (chr->chr_guest_close) {
3444 chr->chr_guest_close(chr);
3448 int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3449 GIOFunc func, void *user_data)
3454 if (s->chr_add_watch == NULL) {
3458 src = s->chr_add_watch(s, cond);
3459 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3460 tag = g_source_attach(src, NULL);
3461 g_source_unref(src);
3466 void qemu_chr_delete(CharDriverState *chr)
3468 QTAILQ_REMOVE(&chardevs, chr, next);
3469 if (chr->chr_close) {
3470 chr->chr_close(chr);
3472 g_free(chr->filename);
3475 qemu_opts_del(chr->opts);
3480 ChardevInfoList *qmp_query_chardev(Error **errp)
3482 ChardevInfoList *chr_list = NULL;
3483 CharDriverState *chr;
3485 QTAILQ_FOREACH(chr, &chardevs, next) {
3486 ChardevInfoList *info = g_malloc0(sizeof(*info));
3487 info->value = g_malloc0(sizeof(*info->value));
3488 info->value->label = g_strdup(chr->label);
3489 info->value->filename = g_strdup(chr->filename);
3491 info->next = chr_list;
3498 CharDriverState *qemu_chr_find(const char *name)
3500 CharDriverState *chr;
3502 QTAILQ_FOREACH(chr, &chardevs, next) {
3503 if (strcmp(chr->label, name) != 0)
3510 /* Get a character (serial) device interface. */
3511 CharDriverState *qemu_char_get_next_serial(void)
3513 static int next_serial;
3515 /* FIXME: This function needs to go away: use chardev properties! */
3516 return serial_hds[next_serial++];
3519 QemuOptsList qemu_chardev_opts = {
3521 .implied_opt_name = "backend",
3522 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3526 .type = QEMU_OPT_STRING,
3529 .type = QEMU_OPT_STRING,
3532 .type = QEMU_OPT_STRING,
3535 .type = QEMU_OPT_STRING,
3537 .name = "localaddr",
3538 .type = QEMU_OPT_STRING,
3540 .name = "localport",
3541 .type = QEMU_OPT_STRING,
3544 .type = QEMU_OPT_NUMBER,
3547 .type = QEMU_OPT_BOOL,
3550 .type = QEMU_OPT_BOOL,
3553 .type = QEMU_OPT_BOOL,
3556 .type = QEMU_OPT_BOOL,
3559 .type = QEMU_OPT_BOOL,
3562 .type = QEMU_OPT_BOOL,
3565 .type = QEMU_OPT_NUMBER,
3568 .type = QEMU_OPT_NUMBER,
3571 .type = QEMU_OPT_NUMBER,
3574 .type = QEMU_OPT_NUMBER,
3577 .type = QEMU_OPT_BOOL,
3580 .type = QEMU_OPT_BOOL,
3583 .type = QEMU_OPT_STRING,
3586 .type = QEMU_OPT_NUMBER,
3589 .type = QEMU_OPT_SIZE,
3591 { /* end of list */ }
3597 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3602 error_setg(errp, "input file not supported");
3606 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3607 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3608 if (out == INVALID_HANDLE_VALUE) {
3609 error_setg(errp, "open %s failed", file->out);
3612 return qemu_chr_open_win_file(out);
3615 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3618 return qemu_chr_open_win_path(serial->device);
3621 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3624 error_setg(errp, "character device backend type 'parallel' not supported");
3630 static int qmp_chardev_open_file_source(char *src, int flags,
3635 TFR(fd = qemu_open(src, flags, 0666));
3637 error_setg(errp, "open %s: %s", src, strerror(errno));
3642 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3644 int flags, in = -1, out = -1;
3646 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3647 out = qmp_chardev_open_file_source(file->out, flags, errp);
3648 if (error_is_set(errp)) {
3654 in = qmp_chardev_open_file_source(file->in, flags, errp);
3655 if (error_is_set(errp)) {
3661 return qemu_chr_open_fd(in, out);
3664 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3667 #ifdef HAVE_CHARDEV_TTY
3670 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3671 if (error_is_set(errp)) {
3674 socket_set_nonblock(fd);
3675 return qemu_chr_open_tty_fd(fd);
3677 error_setg(errp, "character device backend type 'serial' not supported");
3682 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3685 #ifdef HAVE_CHARDEV_PARPORT
3688 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3689 if (error_is_set(errp)) {
3692 return qemu_chr_open_pp_fd(fd);
3694 error_setg(errp, "character device backend type 'parallel' not supported");
3701 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3704 SocketAddress *addr = sock->addr;
3705 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3706 bool is_listen = sock->has_server ? sock->server : true;
3707 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3708 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3712 fd = socket_listen(addr, errp);
3714 fd = socket_connect(addr, errp, NULL, NULL);
3716 if (error_is_set(errp)) {
3719 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3720 is_telnet, is_waitconnect, errp);
3723 static CharDriverState *qmp_chardev_open_dgram(ChardevDgram *dgram,
3728 fd = socket_dgram(dgram->remote, dgram->local, errp);
3729 if (error_is_set(errp)) {
3732 return qemu_chr_open_udp_fd(fd);
3735 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3738 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3739 CharDriverState *base, *chr = NULL;
3741 chr = qemu_chr_find(id);
3743 error_setg(errp, "Chardev '%s' already exists", id);
3748 switch (backend->kind) {
3749 case CHARDEV_BACKEND_KIND_FILE:
3750 chr = qmp_chardev_open_file(backend->file, errp);
3752 case CHARDEV_BACKEND_KIND_SERIAL:
3753 chr = qmp_chardev_open_serial(backend->serial, errp);
3755 case CHARDEV_BACKEND_KIND_PARALLEL:
3756 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3758 case CHARDEV_BACKEND_KIND_PIPE:
3759 chr = qemu_chr_open_pipe(backend->pipe);
3761 case CHARDEV_BACKEND_KIND_SOCKET:
3762 chr = qmp_chardev_open_socket(backend->socket, errp);
3764 case CHARDEV_BACKEND_KIND_DGRAM:
3765 chr = qmp_chardev_open_dgram(backend->dgram, errp);
3767 #ifdef HAVE_CHARDEV_TTY
3768 case CHARDEV_BACKEND_KIND_PTY:
3769 chr = qemu_chr_open_pty(id, ret);
3772 case CHARDEV_BACKEND_KIND_NULL:
3773 chr = qemu_chr_open_null();
3775 case CHARDEV_BACKEND_KIND_MUX:
3776 base = qemu_chr_find(backend->mux->chardev);
3778 error_setg(errp, "mux: base chardev %s not found",
3779 backend->mux->chardev);
3782 chr = qemu_chr_open_mux(base);
3784 case CHARDEV_BACKEND_KIND_MSMOUSE:
3785 chr = qemu_chr_open_msmouse();
3787 #ifdef CONFIG_BRLAPI
3788 case CHARDEV_BACKEND_KIND_BRAILLE:
3789 chr = chr_baum_init();
3792 case CHARDEV_BACKEND_KIND_STDIO:
3793 chr = qemu_chr_open_stdio(backend->stdio);
3796 case CHARDEV_BACKEND_KIND_CONSOLE:
3797 chr = qemu_chr_open_win_con();
3801 case CHARDEV_BACKEND_KIND_SPICEVMC:
3802 chr = qemu_chr_open_spice_vmc(backend->spicevmc->type);
3804 case CHARDEV_BACKEND_KIND_SPICEPORT:
3805 chr = qemu_chr_open_spice_port(backend->spiceport->fqdn);
3808 case CHARDEV_BACKEND_KIND_VC:
3809 chr = vc_init(backend->vc);
3811 case CHARDEV_BACKEND_KIND_MEMORY:
3812 chr = qemu_chr_open_ringbuf(backend->memory, errp);
3815 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3819 if (chr == NULL && !error_is_set(errp)) {
3820 error_setg(errp, "Failed to create chardev");
3823 chr->label = g_strdup(id);
3824 chr->avail_connections =
3825 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
3826 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3834 void qmp_chardev_remove(const char *id, Error **errp)
3836 CharDriverState *chr;
3838 chr = qemu_chr_find(id);
3840 error_setg(errp, "Chardev '%s' not found", id);
3843 if (chr->chr_can_read || chr->chr_read ||
3844 chr->chr_event || chr->handler_opaque) {
3845 error_setg(errp, "Chardev '%s' is busy", id);
3848 qemu_chr_delete(chr);
3851 static void register_types(void)
3853 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
3854 register_char_driver("socket", qemu_chr_open_socket);
3855 register_char_driver("udp", qemu_chr_open_udp);
3856 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
3857 qemu_chr_parse_ringbuf);
3858 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3859 qemu_chr_parse_file_out);
3860 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3861 qemu_chr_parse_stdio);
3862 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3863 qemu_chr_parse_serial);
3864 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3865 qemu_chr_parse_serial);
3866 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3867 qemu_chr_parse_parallel);
3868 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3869 qemu_chr_parse_parallel);
3870 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
3871 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
3872 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
3873 qemu_chr_parse_pipe);
3876 type_init(register_types);