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 "sysemu/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(__FreeBSD__) || defined(__FreeBSD_kernel__)
57 #include <dev/ppbus/ppi.h>
58 #include <dev/ppbus/ppbconf.h>
59 #elif defined(__DragonFly__)
60 #include <dev/misc/ppi/ppi.h>
61 #include <bus/ppbus/ppbconf.h>
65 #include <linux/ppdev.h>
66 #include <linux/parport.h>
70 #include <sys/ethernet.h>
71 #include <sys/sockio.h>
72 #include <netinet/arp.h>
73 #include <netinet/in.h>
74 #include <netinet/in_systm.h>
75 #include <netinet/ip.h>
76 #include <netinet/ip_icmp.h> // must come after ip.h
77 #include <netinet/udp.h>
78 #include <netinet/tcp.h>
85 #include "qemu/sockets.h"
86 #include "ui/qemu-spice.h"
88 #define READ_BUF_LEN 4096
90 /***********************************************************/
91 /* character device */
93 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
94 QTAILQ_HEAD_INITIALIZER(chardevs);
96 void qemu_chr_be_event(CharDriverState *s, int event)
98 /* Keep track if the char device is open */
100 case CHR_EVENT_OPENED:
103 case CHR_EVENT_CLOSED:
110 s->chr_event(s->handler_opaque, event);
113 void qemu_chr_be_generic_open(CharDriverState *s)
115 qemu_chr_be_event(s, CHR_EVENT_OPENED);
118 int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
120 return s->chr_write(s, buf, len);
123 int qemu_chr_fe_write_all(CharDriverState *s, const uint8_t *buf, int len)
128 while (offset < len) {
130 res = s->chr_write(s, buf + offset, len - offset);
131 if (res == -1 && errno == EAGAIN) {
134 } while (res == -1 && errno == EAGAIN);
150 int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
154 return s->chr_ioctl(s, cmd, arg);
157 int qemu_chr_be_can_write(CharDriverState *s)
159 if (!s->chr_can_read)
161 return s->chr_can_read(s->handler_opaque);
164 void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
167 s->chr_read(s->handler_opaque, buf, len);
171 int qemu_chr_fe_get_msgfd(CharDriverState *s)
173 return s->get_msgfd ? s->get_msgfd(s) : -1;
176 int qemu_chr_add_client(CharDriverState *s, int fd)
178 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
181 void qemu_chr_accept_input(CharDriverState *s)
183 if (s->chr_accept_input)
184 s->chr_accept_input(s);
188 void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
190 char buf[READ_BUF_LEN];
193 vsnprintf(buf, sizeof(buf), fmt, ap);
194 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
198 void qemu_chr_add_handlers(CharDriverState *s,
199 IOCanReadHandler *fd_can_read,
200 IOReadHandler *fd_read,
201 IOEventHandler *fd_event,
206 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
211 s->chr_can_read = fd_can_read;
212 s->chr_read = fd_read;
213 s->chr_event = fd_event;
214 s->handler_opaque = opaque;
215 if (s->chr_update_read_handler)
216 s->chr_update_read_handler(s);
218 if (!s->explicit_fe_open) {
219 qemu_chr_fe_set_open(s, fe_open);
222 /* We're connecting to an already opened device, so let's make sure we
223 also get the open event */
224 if (fe_open && s->be_open) {
225 qemu_chr_be_generic_open(s);
229 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
234 static CharDriverState *qemu_chr_open_null(void)
236 CharDriverState *chr;
238 chr = g_malloc0(sizeof(CharDriverState));
239 chr->chr_write = null_chr_write;
240 chr->explicit_be_open = true;
244 /* MUX driver for serial I/O splitting */
246 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
247 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
249 IOCanReadHandler *chr_can_read[MAX_MUX];
250 IOReadHandler *chr_read[MAX_MUX];
251 IOEventHandler *chr_event[MAX_MUX];
252 void *ext_opaque[MAX_MUX];
253 CharDriverState *drv;
258 /* Intermediate input buffer allows to catch escape sequences even if the
259 currently active device is not accepting any input - but only until it
261 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
266 int64_t timestamps_start;
270 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
272 MuxDriver *d = chr->opaque;
274 if (!d->timestamps) {
275 ret = d->drv->chr_write(d->drv, buf, len);
280 for (i = 0; i < len; i++) {
286 ti = qemu_get_clock_ms(rt_clock);
287 if (d->timestamps_start == -1)
288 d->timestamps_start = ti;
289 ti -= d->timestamps_start;
291 snprintf(buf1, sizeof(buf1),
292 "[%02d:%02d:%02d.%03d] ",
297 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
300 ret += d->drv->chr_write(d->drv, buf+i, 1);
301 if (buf[i] == '\n') {
309 static const char * const mux_help[] = {
310 "% h print this help\n\r",
311 "% x exit emulator\n\r",
312 "% s save disk data back to file (if -snapshot)\n\r",
313 "% t toggle console timestamps\n\r"
314 "% b send break (magic sysrq)\n\r",
315 "% c switch between console and monitor\n\r",
320 int term_escape_char = 0x01; /* ctrl-a is used for escape */
321 static void mux_print_help(CharDriverState *chr)
324 char ebuf[15] = "Escape-Char";
325 char cbuf[50] = "\n\r";
327 if (term_escape_char > 0 && term_escape_char < 26) {
328 snprintf(cbuf, sizeof(cbuf), "\n\r");
329 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
331 snprintf(cbuf, sizeof(cbuf),
332 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
335 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
336 for (i = 0; mux_help[i] != NULL; i++) {
337 for (j=0; mux_help[i][j] != '\0'; j++) {
338 if (mux_help[i][j] == '%')
339 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
341 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
346 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
348 if (d->chr_event[mux_nr])
349 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
352 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
354 if (d->term_got_escape) {
355 d->term_got_escape = 0;
356 if (ch == term_escape_char)
365 const char *term = "QEMU: Terminated\n\r";
366 chr->chr_write(chr,(uint8_t *)term,strlen(term));
374 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
377 /* Switch to the next registered device */
378 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
380 if (d->focus >= d->mux_cnt)
382 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
385 d->timestamps = !d->timestamps;
386 d->timestamps_start = -1;
390 } else if (ch == term_escape_char) {
391 d->term_got_escape = 1;
399 static void mux_chr_accept_input(CharDriverState *chr)
401 MuxDriver *d = chr->opaque;
404 while (d->prod[m] != d->cons[m] &&
405 d->chr_can_read[m] &&
406 d->chr_can_read[m](d->ext_opaque[m])) {
407 d->chr_read[m](d->ext_opaque[m],
408 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
412 static int mux_chr_can_read(void *opaque)
414 CharDriverState *chr = opaque;
415 MuxDriver *d = chr->opaque;
418 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
420 if (d->chr_can_read[m])
421 return d->chr_can_read[m](d->ext_opaque[m]);
425 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
427 CharDriverState *chr = opaque;
428 MuxDriver *d = chr->opaque;
432 mux_chr_accept_input (opaque);
434 for(i = 0; i < size; i++)
435 if (mux_proc_byte(chr, d, buf[i])) {
436 if (d->prod[m] == d->cons[m] &&
437 d->chr_can_read[m] &&
438 d->chr_can_read[m](d->ext_opaque[m]))
439 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
441 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
445 static void mux_chr_event(void *opaque, int event)
447 CharDriverState *chr = opaque;
448 MuxDriver *d = chr->opaque;
451 /* Send the event to all registered listeners */
452 for (i = 0; i < d->mux_cnt; i++)
453 mux_chr_send_event(d, i, event);
456 static void mux_chr_update_read_handler(CharDriverState *chr)
458 MuxDriver *d = chr->opaque;
460 if (d->mux_cnt >= MAX_MUX) {
461 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
464 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
465 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
466 d->chr_read[d->mux_cnt] = chr->chr_read;
467 d->chr_event[d->mux_cnt] = chr->chr_event;
468 /* Fix up the real driver with mux routines */
469 if (d->mux_cnt == 0) {
470 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
473 if (d->focus != -1) {
474 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
476 d->focus = d->mux_cnt;
478 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
481 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
483 CharDriverState *chr;
486 chr = g_malloc0(sizeof(CharDriverState));
487 d = g_malloc0(sizeof(MuxDriver));
492 chr->chr_write = mux_chr_write;
493 chr->chr_update_read_handler = mux_chr_update_read_handler;
494 chr->chr_accept_input = mux_chr_accept_input;
495 /* Frontend guest-open / -close notification is not support with muxes */
496 chr->chr_set_fe_open = NULL;
503 int send_all(int fd, const void *buf, int len1)
509 ret = send(fd, buf, len, 0);
511 errno = WSAGetLastError();
512 if (errno != WSAEWOULDBLOCK) {
515 } else if (ret == 0) {
527 int send_all(int fd, const void *_buf, int len1)
530 const uint8_t *buf = _buf;
534 ret = write(fd, buf, len);
536 if (errno != EINTR && errno != EAGAIN)
538 } else if (ret == 0) {
548 int recv_all(int fd, void *_buf, int len1, bool single_read)
554 while ((len > 0) && (ret = read(fd, buf, len)) != 0) {
556 if (errno != EINTR && errno != EAGAIN) {
573 typedef struct IOWatchPoll
580 IOCanReadHandler *fd_can_read;
585 static IOWatchPoll *io_watch_poll_from_source(GSource *source)
587 return container_of(source, IOWatchPoll, parent);
590 static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
592 IOWatchPoll *iwp = io_watch_poll_from_source(source);
593 bool now_active = iwp->fd_can_read(iwp->opaque) > 0;
594 bool was_active = iwp->src != NULL;
595 if (was_active == now_active) {
600 iwp->src = g_io_create_watch(iwp->channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
601 g_source_set_callback(iwp->src, iwp->fd_read, iwp->opaque, NULL);
602 g_source_attach(iwp->src, NULL);
604 g_source_destroy(iwp->src);
605 g_source_unref(iwp->src);
611 static gboolean io_watch_poll_check(GSource *source)
616 static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
622 static void io_watch_poll_finalize(GSource *source)
624 /* Due to a glib bug, removing the last reference to a source
625 * inside a finalize callback causes recursive locking (and a
626 * deadlock). This is not a problem inside other callbacks,
627 * including dispatch callbacks, so we call io_remove_watch_poll
628 * to remove this source. At this point, iwp->src must
629 * be NULL, or we would leak it.
631 * This would be solved much more elegantly by child sources,
632 * but we support older glib versions that do not have them.
634 IOWatchPoll *iwp = io_watch_poll_from_source(source);
635 assert(iwp->src == NULL);
638 static GSourceFuncs io_watch_poll_funcs = {
639 .prepare = io_watch_poll_prepare,
640 .check = io_watch_poll_check,
641 .dispatch = io_watch_poll_dispatch,
642 .finalize = io_watch_poll_finalize,
645 /* Can only be used for read */
646 static guint io_add_watch_poll(GIOChannel *channel,
647 IOCanReadHandler *fd_can_read,
654 iwp = (IOWatchPoll *) g_source_new(&io_watch_poll_funcs, sizeof(IOWatchPoll));
655 iwp->fd_can_read = fd_can_read;
656 iwp->opaque = user_data;
657 iwp->channel = channel;
658 iwp->fd_read = (GSourceFunc) fd_read;
661 tag = g_source_attach(&iwp->parent, NULL);
662 g_source_unref(&iwp->parent);
666 static void io_remove_watch_poll(guint tag)
671 g_return_if_fail (tag > 0);
673 source = g_main_context_find_source_by_id(NULL, tag);
674 g_return_if_fail (source != NULL);
676 iwp = io_watch_poll_from_source(source);
678 g_source_destroy(iwp->src);
679 g_source_unref(iwp->src);
682 g_source_destroy(&iwp->parent);
686 static GIOChannel *io_channel_from_fd(int fd)
694 chan = g_io_channel_unix_new(fd);
696 g_io_channel_set_encoding(chan, NULL, NULL);
697 g_io_channel_set_buffered(chan, FALSE);
703 static GIOChannel *io_channel_from_socket(int fd)
712 chan = g_io_channel_win32_new_socket(fd);
714 chan = g_io_channel_unix_new(fd);
717 g_io_channel_set_encoding(chan, NULL, NULL);
718 g_io_channel_set_buffered(chan, FALSE);
723 static int io_channel_send(GIOChannel *fd, const void *buf, size_t len)
729 while (offset < len) {
732 status = g_io_channel_write_chars(fd, buf + offset, len - offset,
733 &bytes_written, NULL);
734 if (status != G_IO_STATUS_NORMAL) {
735 if (status == G_IO_STATUS_AGAIN) {
736 /* If we've written any data, return a partial write. */
746 } else if (status == G_IO_STATUS_EOF) {
750 offset += bytes_written;
758 typedef struct FDCharDriver {
759 CharDriverState *chr;
760 GIOChannel *fd_in, *fd_out;
763 QTAILQ_ENTRY(FDCharDriver) node;
766 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
768 FDCharDriver *s = chr->opaque;
770 return io_channel_send(s->fd_out, buf, len);
773 static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
775 CharDriverState *chr = opaque;
776 FDCharDriver *s = chr->opaque;
778 uint8_t buf[READ_BUF_LEN];
783 if (len > s->max_size) {
790 status = g_io_channel_read_chars(chan, (gchar *)buf,
791 len, &bytes_read, NULL);
792 if (status == G_IO_STATUS_EOF) {
794 io_remove_watch_poll(s->fd_in_tag);
797 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
800 if (status == G_IO_STATUS_NORMAL) {
801 qemu_chr_be_write(chr, buf, bytes_read);
807 static int fd_chr_read_poll(void *opaque)
809 CharDriverState *chr = opaque;
810 FDCharDriver *s = chr->opaque;
812 s->max_size = qemu_chr_be_can_write(chr);
816 static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
818 FDCharDriver *s = chr->opaque;
819 return g_io_create_watch(s->fd_out, cond);
822 static void fd_chr_update_read_handler(CharDriverState *chr)
824 FDCharDriver *s = chr->opaque;
827 io_remove_watch_poll(s->fd_in_tag);
832 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
836 static void fd_chr_close(struct CharDriverState *chr)
838 FDCharDriver *s = chr->opaque;
841 io_remove_watch_poll(s->fd_in_tag);
846 g_io_channel_unref(s->fd_in);
849 g_io_channel_unref(s->fd_out);
853 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
856 /* open a character device to a unix fd */
857 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
859 CharDriverState *chr;
862 chr = g_malloc0(sizeof(CharDriverState));
863 s = g_malloc0(sizeof(FDCharDriver));
864 s->fd_in = io_channel_from_fd(fd_in);
865 s->fd_out = io_channel_from_fd(fd_out);
866 fcntl(fd_out, F_SETFL, O_NONBLOCK);
869 chr->chr_add_watch = fd_chr_add_watch;
870 chr->chr_write = fd_chr_write;
871 chr->chr_update_read_handler = fd_chr_update_read_handler;
872 chr->chr_close = fd_chr_close;
877 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
880 char filename_in[256], filename_out[256];
881 const char *filename = opts->device;
883 if (filename == NULL) {
884 fprintf(stderr, "chardev: pipe: no filename given\n");
888 snprintf(filename_in, 256, "%s.in", filename);
889 snprintf(filename_out, 256, "%s.out", filename);
890 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
891 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
892 if (fd_in < 0 || fd_out < 0) {
897 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
902 return qemu_chr_open_fd(fd_in, fd_out);
905 /* init terminal so that we can grab keys */
906 static struct termios oldtty;
907 static int old_fd0_flags;
908 static bool stdio_allow_signal;
910 static void term_exit(void)
912 tcsetattr (0, TCSANOW, &oldtty);
913 fcntl(0, F_SETFL, old_fd0_flags);
916 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
922 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
923 |INLCR|IGNCR|ICRNL|IXON);
924 tty.c_oflag |= OPOST;
925 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
926 tty.c_cflag &= ~(CSIZE|PARENB);
931 /* if graphical mode, we allow Ctrl-C handling */
932 if (!stdio_allow_signal)
933 tty.c_lflag &= ~ISIG;
935 tcsetattr (0, TCSANOW, &tty);
938 static void qemu_chr_close_stdio(struct CharDriverState *chr)
944 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
946 CharDriverState *chr;
948 if (is_daemonized()) {
949 error_report("cannot use stdio with -daemonize");
952 old_fd0_flags = fcntl(0, F_GETFL);
953 tcgetattr (0, &oldtty);
954 fcntl(0, F_SETFL, O_NONBLOCK);
957 chr = qemu_chr_open_fd(0, 1);
958 chr->chr_close = qemu_chr_close_stdio;
959 chr->chr_set_echo = qemu_chr_set_echo_stdio;
960 stdio_allow_signal = display_type != DT_NOGRAPHIC;
961 if (opts->has_signal) {
962 stdio_allow_signal = opts->signal;
964 qemu_chr_fe_set_echo(chr, false);
970 /* Once Solaris has openpty(), this is going to be removed. */
971 static int openpty(int *amaster, int *aslave, char *name,
972 struct termios *termp, struct winsize *winp)
975 int mfd = -1, sfd = -1;
977 *amaster = *aslave = -1;
979 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
983 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
986 if ((slave = ptsname(mfd)) == NULL)
989 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
992 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
993 (termp != NULL && tcgetattr(sfd, termp) < 0))
1001 ioctl(sfd, TIOCSWINSZ, winp);
1012 static void cfmakeraw (struct termios *termios_p)
1014 termios_p->c_iflag &=
1015 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
1016 termios_p->c_oflag &= ~OPOST;
1017 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
1018 termios_p->c_cflag &= ~(CSIZE|PARENB);
1019 termios_p->c_cflag |= CS8;
1021 termios_p->c_cc[VMIN] = 0;
1022 termios_p->c_cc[VTIME] = 0;
1026 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1027 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1028 || defined(__GLIBC__)
1030 #define HAVE_CHARDEV_TTY 1
1040 static void pty_chr_update_read_handler(CharDriverState *chr);
1041 static void pty_chr_state(CharDriverState *chr, int connected);
1043 static gboolean pty_chr_timer(gpointer opaque)
1045 struct CharDriverState *chr = opaque;
1046 PtyCharDriver *s = chr->opaque;
1053 pty_chr_update_read_handler(chr);
1060 static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1062 PtyCharDriver *s = chr->opaque;
1065 g_source_remove(s->timer_tag);
1070 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1072 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1076 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1078 PtyCharDriver *s = chr->opaque;
1080 if (!s->connected) {
1081 /* guest sends data, check for (re-)connect */
1082 pty_chr_update_read_handler(chr);
1085 return io_channel_send(s->fd, buf, len);
1088 static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1090 PtyCharDriver *s = chr->opaque;
1091 return g_io_create_watch(s->fd, cond);
1094 static int pty_chr_read_poll(void *opaque)
1096 CharDriverState *chr = opaque;
1097 PtyCharDriver *s = chr->opaque;
1099 s->read_bytes = qemu_chr_be_can_write(chr);
1100 return s->read_bytes;
1103 static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
1105 CharDriverState *chr = opaque;
1106 PtyCharDriver *s = chr->opaque;
1108 uint8_t buf[READ_BUF_LEN];
1112 if (len > s->read_bytes)
1113 len = s->read_bytes;
1117 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1118 if (status != G_IO_STATUS_NORMAL) {
1119 pty_chr_state(chr, 0);
1122 pty_chr_state(chr, 1);
1123 qemu_chr_be_write(chr, buf, size);
1128 static void pty_chr_update_read_handler(CharDriverState *chr)
1130 PtyCharDriver *s = chr->opaque;
1133 pfd.fd = g_io_channel_unix_get_fd(s->fd);
1134 pfd.events = G_IO_OUT;
1137 if (pfd.revents & G_IO_HUP) {
1138 pty_chr_state(chr, 0);
1140 pty_chr_state(chr, 1);
1144 static void pty_chr_state(CharDriverState *chr, int connected)
1146 PtyCharDriver *s = chr->opaque;
1150 io_remove_watch_poll(s->fd_tag);
1154 /* (re-)connect poll interval for idle guests: once per second.
1155 * We check more frequently in case the guests sends data to
1156 * the virtual device linked to our pty. */
1157 pty_chr_rearm_timer(chr, 1000);
1160 g_source_remove(s->timer_tag);
1163 if (!s->connected) {
1164 qemu_chr_be_generic_open(chr);
1166 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
1172 static void pty_chr_close(struct CharDriverState *chr)
1174 PtyCharDriver *s = chr->opaque;
1178 io_remove_watch_poll(s->fd_tag);
1181 fd = g_io_channel_unix_get_fd(s->fd);
1182 g_io_channel_unref(s->fd);
1185 g_source_remove(s->timer_tag);
1189 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1192 static CharDriverState *qemu_chr_open_pty(const char *id,
1195 CharDriverState *chr;
1198 int master_fd, slave_fd;
1199 #if defined(__OpenBSD__) || defined(__DragonFly__)
1200 char pty_name[PATH_MAX];
1201 #define q_ptsname(x) pty_name
1203 char *pty_name = NULL;
1204 #define q_ptsname(x) ptsname(x)
1207 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1211 /* Set raw attributes on the pty. */
1212 tcgetattr(slave_fd, &tty);
1214 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1217 chr = g_malloc0(sizeof(CharDriverState));
1219 chr->filename = g_strdup_printf("pty:%s", q_ptsname(master_fd));
1220 ret->pty = g_strdup(q_ptsname(master_fd));
1221 ret->has_pty = true;
1223 fprintf(stderr, "char device redirected to %s (label %s)\n",
1224 q_ptsname(master_fd), id);
1226 s = g_malloc0(sizeof(PtyCharDriver));
1228 chr->chr_write = pty_chr_write;
1229 chr->chr_update_read_handler = pty_chr_update_read_handler;
1230 chr->chr_close = pty_chr_close;
1231 chr->chr_add_watch = pty_chr_add_watch;
1232 chr->explicit_be_open = true;
1234 s->fd = io_channel_from_fd(master_fd);
1240 static void tty_serial_init(int fd, int speed,
1241 int parity, int data_bits, int stop_bits)
1247 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1248 speed, parity, data_bits, stop_bits);
1250 tcgetattr (fd, &tty);
1252 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1253 speed = speed * 10 / 11;
1270 /* Non-Posix values follow. They may be unsupported on some systems. */
1272 check_speed(115200);
1274 check_speed(230400);
1277 check_speed(460800);
1280 check_speed(500000);
1283 check_speed(576000);
1286 check_speed(921600);
1289 check_speed(1000000);
1292 check_speed(1152000);
1295 check_speed(1500000);
1298 check_speed(2000000);
1301 check_speed(2500000);
1304 check_speed(3000000);
1307 check_speed(3500000);
1310 check_speed(4000000);
1315 cfsetispeed(&tty, spd);
1316 cfsetospeed(&tty, spd);
1318 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1319 |INLCR|IGNCR|ICRNL|IXON);
1320 tty.c_oflag |= OPOST;
1321 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1322 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1343 tty.c_cflag |= PARENB;
1346 tty.c_cflag |= PARENB | PARODD;
1350 tty.c_cflag |= CSTOPB;
1352 tcsetattr (fd, TCSANOW, &tty);
1355 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1357 FDCharDriver *s = chr->opaque;
1360 case CHR_IOCTL_SERIAL_SET_PARAMS:
1362 QEMUSerialSetParams *ssp = arg;
1363 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1364 ssp->speed, ssp->parity,
1365 ssp->data_bits, ssp->stop_bits);
1368 case CHR_IOCTL_SERIAL_SET_BREAK:
1370 int enable = *(int *)arg;
1372 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1376 case CHR_IOCTL_SERIAL_GET_TIOCM:
1379 int *targ = (int *)arg;
1380 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1382 if (sarg & TIOCM_CTS)
1383 *targ |= CHR_TIOCM_CTS;
1384 if (sarg & TIOCM_CAR)
1385 *targ |= CHR_TIOCM_CAR;
1386 if (sarg & TIOCM_DSR)
1387 *targ |= CHR_TIOCM_DSR;
1388 if (sarg & TIOCM_RI)
1389 *targ |= CHR_TIOCM_RI;
1390 if (sarg & TIOCM_DTR)
1391 *targ |= CHR_TIOCM_DTR;
1392 if (sarg & TIOCM_RTS)
1393 *targ |= CHR_TIOCM_RTS;
1396 case CHR_IOCTL_SERIAL_SET_TIOCM:
1398 int sarg = *(int *)arg;
1400 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1401 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1402 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1403 if (sarg & CHR_TIOCM_CTS)
1405 if (sarg & CHR_TIOCM_CAR)
1407 if (sarg & CHR_TIOCM_DSR)
1409 if (sarg & CHR_TIOCM_RI)
1411 if (sarg & CHR_TIOCM_DTR)
1413 if (sarg & CHR_TIOCM_RTS)
1415 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1424 static void qemu_chr_close_tty(CharDriverState *chr)
1426 FDCharDriver *s = chr->opaque;
1430 fd = g_io_channel_unix_get_fd(s->fd_in);
1440 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1442 CharDriverState *chr;
1444 tty_serial_init(fd, 115200, 'N', 8, 1);
1445 chr = qemu_chr_open_fd(fd, fd);
1446 chr->chr_ioctl = tty_serial_ioctl;
1447 chr->chr_close = qemu_chr_close_tty;
1450 #endif /* __linux__ || __sun__ */
1452 #if defined(__linux__)
1454 #define HAVE_CHARDEV_PARPORT 1
1459 } ParallelCharDriver;
1461 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1463 if (s->mode != mode) {
1465 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1472 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1474 ParallelCharDriver *drv = chr->opaque;
1479 case CHR_IOCTL_PP_READ_DATA:
1480 if (ioctl(fd, PPRDATA, &b) < 0)
1482 *(uint8_t *)arg = b;
1484 case CHR_IOCTL_PP_WRITE_DATA:
1485 b = *(uint8_t *)arg;
1486 if (ioctl(fd, PPWDATA, &b) < 0)
1489 case CHR_IOCTL_PP_READ_CONTROL:
1490 if (ioctl(fd, PPRCONTROL, &b) < 0)
1492 /* Linux gives only the lowest bits, and no way to know data
1493 direction! For better compatibility set the fixed upper
1495 *(uint8_t *)arg = b | 0xc0;
1497 case CHR_IOCTL_PP_WRITE_CONTROL:
1498 b = *(uint8_t *)arg;
1499 if (ioctl(fd, PPWCONTROL, &b) < 0)
1502 case CHR_IOCTL_PP_READ_STATUS:
1503 if (ioctl(fd, PPRSTATUS, &b) < 0)
1505 *(uint8_t *)arg = b;
1507 case CHR_IOCTL_PP_DATA_DIR:
1508 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1511 case CHR_IOCTL_PP_EPP_READ_ADDR:
1512 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1513 struct ParallelIOArg *parg = arg;
1514 int n = read(fd, parg->buffer, parg->count);
1515 if (n != parg->count) {
1520 case CHR_IOCTL_PP_EPP_READ:
1521 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1522 struct ParallelIOArg *parg = arg;
1523 int n = read(fd, parg->buffer, parg->count);
1524 if (n != parg->count) {
1529 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1530 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1531 struct ParallelIOArg *parg = arg;
1532 int n = write(fd, parg->buffer, parg->count);
1533 if (n != parg->count) {
1538 case CHR_IOCTL_PP_EPP_WRITE:
1539 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1540 struct ParallelIOArg *parg = arg;
1541 int n = write(fd, parg->buffer, parg->count);
1542 if (n != parg->count) {
1553 static void pp_close(CharDriverState *chr)
1555 ParallelCharDriver *drv = chr->opaque;
1558 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1559 ioctl(fd, PPRELEASE);
1562 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1565 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1567 CharDriverState *chr;
1568 ParallelCharDriver *drv;
1570 if (ioctl(fd, PPCLAIM) < 0) {
1575 drv = g_malloc0(sizeof(ParallelCharDriver));
1577 drv->mode = IEEE1284_MODE_COMPAT;
1579 chr = g_malloc0(sizeof(CharDriverState));
1580 chr->chr_write = null_chr_write;
1581 chr->chr_ioctl = pp_ioctl;
1582 chr->chr_close = pp_close;
1587 #endif /* __linux__ */
1589 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1591 #define HAVE_CHARDEV_PARPORT 1
1593 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1595 int fd = (int)(intptr_t)chr->opaque;
1599 case CHR_IOCTL_PP_READ_DATA:
1600 if (ioctl(fd, PPIGDATA, &b) < 0)
1602 *(uint8_t *)arg = b;
1604 case CHR_IOCTL_PP_WRITE_DATA:
1605 b = *(uint8_t *)arg;
1606 if (ioctl(fd, PPISDATA, &b) < 0)
1609 case CHR_IOCTL_PP_READ_CONTROL:
1610 if (ioctl(fd, PPIGCTRL, &b) < 0)
1612 *(uint8_t *)arg = b;
1614 case CHR_IOCTL_PP_WRITE_CONTROL:
1615 b = *(uint8_t *)arg;
1616 if (ioctl(fd, PPISCTRL, &b) < 0)
1619 case CHR_IOCTL_PP_READ_STATUS:
1620 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1622 *(uint8_t *)arg = b;
1630 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1632 CharDriverState *chr;
1634 chr = g_malloc0(sizeof(CharDriverState));
1635 chr->opaque = (void *)(intptr_t)fd;
1636 chr->chr_write = null_chr_write;
1637 chr->chr_ioctl = pp_ioctl;
1638 chr->explicit_be_open = true;
1647 HANDLE hcom, hrecv, hsend;
1648 OVERLAPPED orecv, osend;
1655 HANDLE hInputReadyEvent;
1656 HANDLE hInputDoneEvent;
1657 HANDLE hInputThread;
1658 uint8_t win_stdio_buf;
1659 } WinStdioCharState;
1661 #define NSENDBUF 2048
1662 #define NRECVBUF 2048
1663 #define MAXCONNECT 1
1664 #define NTIMEOUT 5000
1666 static int win_chr_poll(void *opaque);
1667 static int win_chr_pipe_poll(void *opaque);
1669 static void win_chr_close(CharDriverState *chr)
1671 WinCharState *s = chr->opaque;
1674 CloseHandle(s->hsend);
1678 CloseHandle(s->hrecv);
1682 CloseHandle(s->hcom);
1686 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1688 qemu_del_polling_cb(win_chr_poll, chr);
1690 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1693 static int win_chr_init(CharDriverState *chr, const char *filename)
1695 WinCharState *s = chr->opaque;
1697 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1702 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1704 fprintf(stderr, "Failed CreateEvent\n");
1707 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1709 fprintf(stderr, "Failed CreateEvent\n");
1713 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1714 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1715 if (s->hcom == INVALID_HANDLE_VALUE) {
1716 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1721 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1722 fprintf(stderr, "Failed SetupComm\n");
1726 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1727 size = sizeof(COMMCONFIG);
1728 GetDefaultCommConfig(filename, &comcfg, &size);
1729 comcfg.dcb.DCBlength = sizeof(DCB);
1730 CommConfigDialog(filename, NULL, &comcfg);
1732 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1733 fprintf(stderr, "Failed SetCommState\n");
1737 if (!SetCommMask(s->hcom, EV_ERR)) {
1738 fprintf(stderr, "Failed SetCommMask\n");
1742 cto.ReadIntervalTimeout = MAXDWORD;
1743 if (!SetCommTimeouts(s->hcom, &cto)) {
1744 fprintf(stderr, "Failed SetCommTimeouts\n");
1748 if (!ClearCommError(s->hcom, &err, &comstat)) {
1749 fprintf(stderr, "Failed ClearCommError\n");
1752 qemu_add_polling_cb(win_chr_poll, chr);
1760 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1762 WinCharState *s = chr->opaque;
1763 DWORD len, ret, size, err;
1766 ZeroMemory(&s->osend, sizeof(s->osend));
1767 s->osend.hEvent = s->hsend;
1770 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1772 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1774 err = GetLastError();
1775 if (err == ERROR_IO_PENDING) {
1776 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1794 static int win_chr_read_poll(CharDriverState *chr)
1796 WinCharState *s = chr->opaque;
1798 s->max_size = qemu_chr_be_can_write(chr);
1802 static void win_chr_readfile(CharDriverState *chr)
1804 WinCharState *s = chr->opaque;
1806 uint8_t buf[READ_BUF_LEN];
1809 ZeroMemory(&s->orecv, sizeof(s->orecv));
1810 s->orecv.hEvent = s->hrecv;
1811 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1813 err = GetLastError();
1814 if (err == ERROR_IO_PENDING) {
1815 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1820 qemu_chr_be_write(chr, buf, size);
1824 static void win_chr_read(CharDriverState *chr)
1826 WinCharState *s = chr->opaque;
1828 if (s->len > s->max_size)
1829 s->len = s->max_size;
1833 win_chr_readfile(chr);
1836 static int win_chr_poll(void *opaque)
1838 CharDriverState *chr = opaque;
1839 WinCharState *s = chr->opaque;
1843 ClearCommError(s->hcom, &comerr, &status);
1844 if (status.cbInQue > 0) {
1845 s->len = status.cbInQue;
1846 win_chr_read_poll(chr);
1853 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1855 CharDriverState *chr;
1858 chr = g_malloc0(sizeof(CharDriverState));
1859 s = g_malloc0(sizeof(WinCharState));
1861 chr->chr_write = win_chr_write;
1862 chr->chr_close = win_chr_close;
1864 if (win_chr_init(chr, filename) < 0) {
1872 static int win_chr_pipe_poll(void *opaque)
1874 CharDriverState *chr = opaque;
1875 WinCharState *s = chr->opaque;
1878 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1881 win_chr_read_poll(chr);
1888 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1890 WinCharState *s = chr->opaque;
1898 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1900 fprintf(stderr, "Failed CreateEvent\n");
1903 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1905 fprintf(stderr, "Failed CreateEvent\n");
1909 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1910 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1911 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1913 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1914 if (s->hcom == INVALID_HANDLE_VALUE) {
1915 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1920 ZeroMemory(&ov, sizeof(ov));
1921 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1922 ret = ConnectNamedPipe(s->hcom, &ov);
1924 fprintf(stderr, "Failed ConnectNamedPipe\n");
1928 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1930 fprintf(stderr, "Failed GetOverlappedResult\n");
1932 CloseHandle(ov.hEvent);
1939 CloseHandle(ov.hEvent);
1942 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1951 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
1953 const char *filename = opts->device;
1954 CharDriverState *chr;
1957 chr = g_malloc0(sizeof(CharDriverState));
1958 s = g_malloc0(sizeof(WinCharState));
1960 chr->chr_write = win_chr_write;
1961 chr->chr_close = win_chr_close;
1963 if (win_chr_pipe_init(chr, filename) < 0) {
1971 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1973 CharDriverState *chr;
1976 chr = g_malloc0(sizeof(CharDriverState));
1977 s = g_malloc0(sizeof(WinCharState));
1980 chr->chr_write = win_chr_write;
1984 static CharDriverState *qemu_chr_open_win_con(void)
1986 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1989 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1991 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1998 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
2008 static void win_stdio_wait_func(void *opaque)
2010 CharDriverState *chr = opaque;
2011 WinStdioCharState *stdio = chr->opaque;
2012 INPUT_RECORD buf[4];
2017 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
2021 /* Avoid error storm */
2022 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
2026 for (i = 0; i < dwSize; i++) {
2027 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2029 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2031 if (kev->uChar.AsciiChar != 0) {
2032 for (j = 0; j < kev->wRepeatCount; j++) {
2033 if (qemu_chr_be_can_write(chr)) {
2034 uint8_t c = kev->uChar.AsciiChar;
2035 qemu_chr_be_write(chr, &c, 1);
2043 static DWORD WINAPI win_stdio_thread(LPVOID param)
2045 CharDriverState *chr = param;
2046 WinStdioCharState *stdio = chr->opaque;
2052 /* Wait for one byte */
2053 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2055 /* Exit in case of error, continue if nothing read */
2063 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2064 if (stdio->win_stdio_buf == '\r') {
2068 /* Signal the main thread and wait until the byte was eaten */
2069 if (!SetEvent(stdio->hInputReadyEvent)) {
2072 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2078 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2082 static void win_stdio_thread_wait_func(void *opaque)
2084 CharDriverState *chr = opaque;
2085 WinStdioCharState *stdio = chr->opaque;
2087 if (qemu_chr_be_can_write(chr)) {
2088 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2091 SetEvent(stdio->hInputDoneEvent);
2094 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2096 WinStdioCharState *stdio = chr->opaque;
2099 GetConsoleMode(stdio->hStdIn, &dwMode);
2102 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2104 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2108 static void win_stdio_close(CharDriverState *chr)
2110 WinStdioCharState *stdio = chr->opaque;
2112 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2113 CloseHandle(stdio->hInputReadyEvent);
2115 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2116 CloseHandle(stdio->hInputDoneEvent);
2118 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2119 TerminateThread(stdio->hInputThread, 0);
2122 g_free(chr->opaque);
2126 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
2128 CharDriverState *chr;
2129 WinStdioCharState *stdio;
2133 chr = g_malloc0(sizeof(CharDriverState));
2134 stdio = g_malloc0(sizeof(WinStdioCharState));
2136 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2137 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2138 fprintf(stderr, "cannot open stdio: invalid handle\n");
2142 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2144 chr->opaque = stdio;
2145 chr->chr_write = win_stdio_write;
2146 chr->chr_close = win_stdio_close;
2149 if (qemu_add_wait_object(stdio->hStdIn,
2150 win_stdio_wait_func, chr)) {
2151 fprintf(stderr, "qemu_add_wait_object: failed\n");
2156 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2157 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2158 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2161 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2162 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2163 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2164 fprintf(stderr, "cannot create stdio thread or event\n");
2167 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2168 win_stdio_thread_wait_func, chr)) {
2169 fprintf(stderr, "qemu_add_wait_object: failed\n");
2173 dwMode |= ENABLE_LINE_INPUT;
2176 /* set the terminal in raw mode */
2177 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2178 dwMode |= ENABLE_PROCESSED_INPUT;
2181 SetConsoleMode(stdio->hStdIn, dwMode);
2183 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2184 qemu_chr_fe_set_echo(chr, false);
2188 #endif /* !_WIN32 */
2191 /***********************************************************/
2192 /* UDP Net console */
2198 uint8_t buf[READ_BUF_LEN];
2204 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2206 NetCharDriver *s = chr->opaque;
2207 gsize bytes_written;
2210 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2211 if (status == G_IO_STATUS_EOF) {
2213 } else if (status != G_IO_STATUS_NORMAL) {
2217 return bytes_written;
2220 static int udp_chr_read_poll(void *opaque)
2222 CharDriverState *chr = opaque;
2223 NetCharDriver *s = chr->opaque;
2225 s->max_size = qemu_chr_be_can_write(chr);
2227 /* If there were any stray characters in the queue process them
2230 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2231 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2233 s->max_size = qemu_chr_be_can_write(chr);
2238 static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2240 CharDriverState *chr = opaque;
2241 NetCharDriver *s = chr->opaque;
2242 gsize bytes_read = 0;
2245 if (s->max_size == 0) {
2248 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2250 s->bufcnt = bytes_read;
2251 s->bufptr = s->bufcnt;
2252 if (status != G_IO_STATUS_NORMAL) {
2254 io_remove_watch_poll(s->tag);
2261 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2262 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2264 s->max_size = qemu_chr_be_can_write(chr);
2270 static void udp_chr_update_read_handler(CharDriverState *chr)
2272 NetCharDriver *s = chr->opaque;
2275 io_remove_watch_poll(s->tag);
2280 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
2284 static void udp_chr_close(CharDriverState *chr)
2286 NetCharDriver *s = chr->opaque;
2288 io_remove_watch_poll(s->tag);
2292 g_io_channel_unref(s->chan);
2296 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2299 static CharDriverState *qemu_chr_open_udp_fd(int fd)
2301 CharDriverState *chr = NULL;
2302 NetCharDriver *s = NULL;
2304 chr = g_malloc0(sizeof(CharDriverState));
2305 s = g_malloc0(sizeof(NetCharDriver));
2308 s->chan = io_channel_from_socket(s->fd);
2312 chr->chr_write = udp_chr_write;
2313 chr->chr_update_read_handler = udp_chr_update_read_handler;
2314 chr->chr_close = udp_chr_close;
2315 /* be isn't opened until we get a connection */
2316 chr->explicit_be_open = true;
2320 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2322 Error *local_err = NULL;
2325 fd = inet_dgram_opts(opts, &local_err);
2329 return qemu_chr_open_udp_fd(fd);
2332 /***********************************************************/
2333 /* TCP Net console */
2337 GIOChannel *chan, *listen_chan;
2338 guint tag, listen_tag;
2348 static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
2350 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2352 TCPCharDriver *s = chr->opaque;
2354 return io_channel_send(s->chan, buf, len);
2356 /* XXX: indicate an error ? */
2361 static int tcp_chr_read_poll(void *opaque)
2363 CharDriverState *chr = opaque;
2364 TCPCharDriver *s = chr->opaque;
2367 s->max_size = qemu_chr_be_can_write(chr);
2372 #define IAC_BREAK 243
2373 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2375 uint8_t *buf, int *size)
2377 /* Handle any telnet client's basic IAC options to satisfy char by
2378 * char mode with no echo. All IAC options will be removed from
2379 * the buf and the do_telnetopt variable will be used to track the
2380 * state of the width of the IAC information.
2382 * IAC commands come in sets of 3 bytes with the exception of the
2383 * "IAC BREAK" command and the double IAC.
2389 for (i = 0; i < *size; i++) {
2390 if (s->do_telnetopt > 1) {
2391 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2392 /* Double IAC means send an IAC */
2396 s->do_telnetopt = 1;
2398 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2399 /* Handle IAC break commands by sending a serial break */
2400 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2405 if (s->do_telnetopt >= 4) {
2406 s->do_telnetopt = 1;
2409 if ((unsigned char)buf[i] == IAC) {
2410 s->do_telnetopt = 2;
2421 static int tcp_get_msgfd(CharDriverState *chr)
2423 TCPCharDriver *s = chr->opaque;
2430 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2432 TCPCharDriver *s = chr->opaque;
2433 struct cmsghdr *cmsg;
2435 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2438 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2439 cmsg->cmsg_level != SOL_SOCKET ||
2440 cmsg->cmsg_type != SCM_RIGHTS)
2443 fd = *((int *)CMSG_DATA(cmsg));
2447 /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
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);
2524 io_remove_watch_poll(s->tag);
2527 g_io_channel_unref(s->chan);
2531 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2532 } else if (size > 0) {
2533 if (s->do_telnetopt)
2534 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2536 qemu_chr_be_write(chr, buf, size);
2543 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2545 return qemu_chr_open_fd(eventfd, eventfd);
2549 static void tcp_chr_connect(void *opaque)
2551 CharDriverState *chr = opaque;
2552 TCPCharDriver *s = chr->opaque;
2556 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
2558 qemu_chr_be_generic_open(chr);
2561 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2562 static void tcp_chr_telnet_init(int fd)
2565 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2566 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2567 send(fd, (char *)buf, 3, 0);
2568 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2569 send(fd, (char *)buf, 3, 0);
2570 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2571 send(fd, (char *)buf, 3, 0);
2572 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2573 send(fd, (char *)buf, 3, 0);
2576 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2578 TCPCharDriver *s = chr->opaque;
2582 qemu_set_nonblock(fd);
2584 socket_set_nodelay(fd);
2586 s->chan = io_channel_from_socket(fd);
2587 if (s->listen_tag) {
2588 g_source_remove(s->listen_tag);
2591 tcp_chr_connect(chr);
2596 static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
2598 CharDriverState *chr = opaque;
2599 TCPCharDriver *s = chr->opaque;
2600 struct sockaddr_in saddr;
2602 struct sockaddr_un uaddr;
2604 struct sockaddr *addr;
2611 len = sizeof(uaddr);
2612 addr = (struct sockaddr *)&uaddr;
2616 len = sizeof(saddr);
2617 addr = (struct sockaddr *)&saddr;
2619 fd = qemu_accept(s->listen_fd, addr, &len);
2620 if (fd < 0 && errno != EINTR) {
2623 } else if (fd >= 0) {
2624 if (s->do_telnetopt)
2625 tcp_chr_telnet_init(fd);
2629 if (tcp_chr_add_client(chr, fd) < 0)
2635 static void tcp_chr_close(CharDriverState *chr)
2637 TCPCharDriver *s = chr->opaque;
2640 io_remove_watch_poll(s->tag);
2644 g_io_channel_unref(s->chan);
2648 if (s->listen_fd >= 0) {
2649 if (s->listen_tag) {
2650 g_source_remove(s->listen_tag);
2653 if (s->listen_chan) {
2654 g_io_channel_unref(s->listen_chan);
2656 closesocket(s->listen_fd);
2659 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2662 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2663 bool is_listen, bool is_telnet,
2664 bool is_waitconnect,
2667 CharDriverState *chr = NULL;
2668 TCPCharDriver *s = NULL;
2669 char host[NI_MAXHOST], serv[NI_MAXSERV];
2670 const char *left = "", *right = "";
2671 struct sockaddr_storage ss;
2672 socklen_t ss_len = sizeof(ss);
2674 memset(&ss, 0, ss_len);
2675 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2676 error_setg(errp, "getsockname: %s", strerror(errno));
2680 chr = g_malloc0(sizeof(CharDriverState));
2681 s = g_malloc0(sizeof(TCPCharDriver));
2688 chr->filename = g_malloc(256);
2689 switch (ss.ss_family) {
2693 snprintf(chr->filename, 256, "unix:%s%s",
2694 ((struct sockaddr_un *)(&ss))->sun_path,
2695 is_listen ? ",server" : "");
2703 s->do_nodelay = do_nodelay;
2704 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2705 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2706 snprintf(chr->filename, 256, "%s:%s%s%s:%s%s",
2707 is_telnet ? "telnet" : "tcp",
2708 left, host, right, serv,
2709 is_listen ? ",server" : "");
2714 chr->chr_write = tcp_chr_write;
2715 chr->chr_close = tcp_chr_close;
2716 chr->get_msgfd = tcp_get_msgfd;
2717 chr->chr_add_client = tcp_chr_add_client;
2718 chr->chr_add_watch = tcp_chr_add_watch;
2719 /* be isn't opened until we get a connection */
2720 chr->explicit_be_open = true;
2724 s->listen_chan = io_channel_from_socket(s->listen_fd);
2725 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2727 s->do_telnetopt = 1;
2732 socket_set_nodelay(fd);
2733 s->chan = io_channel_from_socket(s->fd);
2734 tcp_chr_connect(chr);
2737 if (is_listen && is_waitconnect) {
2738 printf("QEMU waiting for connection on: %s\n",
2740 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
2741 qemu_set_nonblock(s->listen_fd);
2746 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2748 CharDriverState *chr = NULL;
2749 Error *local_err = NULL;
2757 is_listen = qemu_opt_get_bool(opts, "server", 0);
2758 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2759 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2760 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2761 is_unix = qemu_opt_get(opts, "path") != NULL;
2767 fd = unix_listen_opts(opts, &local_err);
2769 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2773 fd = inet_listen_opts(opts, 0, &local_err);
2775 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2782 if (!is_waitconnect)
2783 qemu_set_nonblock(fd);
2785 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2786 is_waitconnect, &local_err);
2787 if (error_is_set(&local_err)) {
2795 qerror_report_err(local_err);
2796 error_free(local_err);
2802 g_free(chr->opaque);
2808 /*********************************************************/
2809 /* Ring buffer chardev */
2816 } RingBufCharDriver;
2818 static size_t ringbuf_count(const CharDriverState *chr)
2820 const RingBufCharDriver *d = chr->opaque;
2822 return d->prod - d->cons;
2825 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2827 RingBufCharDriver *d = chr->opaque;
2830 if (!buf || (len < 0)) {
2834 for (i = 0; i < len; i++ ) {
2835 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2836 if (d->prod - d->cons > d->size) {
2837 d->cons = d->prod - d->size;
2844 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2846 RingBufCharDriver *d = chr->opaque;
2849 for (i = 0; i < len && d->cons != d->prod; i++) {
2850 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2856 static void ringbuf_chr_close(struct CharDriverState *chr)
2858 RingBufCharDriver *d = chr->opaque;
2865 static CharDriverState *qemu_chr_open_memory(ChardevMemory *opts,
2868 CharDriverState *chr;
2869 RingBufCharDriver *d;
2871 chr = g_malloc0(sizeof(CharDriverState));
2872 d = g_malloc(sizeof(*d));
2874 d->size = opts->has_size ? opts->size : 65536;
2876 /* The size must be power of 2 */
2877 if (d->size & (d->size - 1)) {
2878 error_setg(errp, "size of memory chardev must be power of two");
2884 d->cbuf = g_malloc0(d->size);
2887 chr->chr_write = ringbuf_chr_write;
2888 chr->chr_close = ringbuf_chr_close;
2898 static bool chr_is_ringbuf(const CharDriverState *chr)
2900 return chr->chr_write == ringbuf_chr_write;
2903 void qmp_ringbuf_write(const char *device, const char *data,
2904 bool has_format, enum DataFormat format,
2907 CharDriverState *chr;
2908 const uint8_t *write_data;
2912 chr = qemu_chr_find(device);
2914 error_setg(errp, "Device '%s' not found", device);
2918 if (!chr_is_ringbuf(chr)) {
2919 error_setg(errp,"%s is not a ringbuf device", device);
2923 if (has_format && (format == DATA_FORMAT_BASE64)) {
2924 write_data = g_base64_decode(data, &write_count);
2926 write_data = (uint8_t *)data;
2927 write_count = strlen(data);
2930 ret = ringbuf_chr_write(chr, write_data, write_count);
2932 if (write_data != (uint8_t *)data) {
2933 g_free((void *)write_data);
2937 error_setg(errp, "Failed to write to device %s", device);
2942 char *qmp_ringbuf_read(const char *device, int64_t size,
2943 bool has_format, enum DataFormat format,
2946 CharDriverState *chr;
2951 chr = qemu_chr_find(device);
2953 error_setg(errp, "Device '%s' not found", device);
2957 if (!chr_is_ringbuf(chr)) {
2958 error_setg(errp,"%s is not a ringbuf device", device);
2963 error_setg(errp, "size must be greater than zero");
2967 count = ringbuf_count(chr);
2968 size = size > count ? count : size;
2969 read_data = g_malloc(size + 1);
2971 ringbuf_chr_read(chr, read_data, size);
2973 if (has_format && (format == DATA_FORMAT_BASE64)) {
2974 data = g_base64_encode(read_data, size);
2978 * FIXME should read only complete, valid UTF-8 characters up
2979 * to @size bytes. Invalid sequences should be replaced by a
2980 * suitable replacement character. Except when (and only
2981 * when) ring buffer lost characters since last read, initial
2982 * continuation characters should be dropped.
2984 read_data[size] = 0;
2985 data = (char *)read_data;
2991 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2993 char host[65], port[33], width[8], height[8];
2997 Error *local_err = NULL;
2999 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
3000 if (error_is_set(&local_err)) {
3001 qerror_report_err(local_err);
3002 error_free(local_err);
3006 if (strstart(filename, "mon:", &p)) {
3008 qemu_opt_set(opts, "mux", "on");
3011 if (strcmp(filename, "null") == 0 ||
3012 strcmp(filename, "pty") == 0 ||
3013 strcmp(filename, "msmouse") == 0 ||
3014 strcmp(filename, "braille") == 0 ||
3015 strcmp(filename, "stdio") == 0) {
3016 qemu_opt_set(opts, "backend", filename);
3019 if (strstart(filename, "vc", &p)) {
3020 qemu_opt_set(opts, "backend", "vc");
3022 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3024 qemu_opt_set(opts, "width", width);
3025 qemu_opt_set(opts, "height", height);
3026 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3028 qemu_opt_set(opts, "cols", width);
3029 qemu_opt_set(opts, "rows", height);
3036 if (strcmp(filename, "con:") == 0) {
3037 qemu_opt_set(opts, "backend", "console");
3040 if (strstart(filename, "COM", NULL)) {
3041 qemu_opt_set(opts, "backend", "serial");
3042 qemu_opt_set(opts, "path", filename);
3045 if (strstart(filename, "file:", &p)) {
3046 qemu_opt_set(opts, "backend", "file");
3047 qemu_opt_set(opts, "path", p);
3050 if (strstart(filename, "pipe:", &p)) {
3051 qemu_opt_set(opts, "backend", "pipe");
3052 qemu_opt_set(opts, "path", p);
3055 if (strstart(filename, "tcp:", &p) ||
3056 strstart(filename, "telnet:", &p)) {
3057 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3059 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3062 qemu_opt_set(opts, "backend", "socket");
3063 qemu_opt_set(opts, "host", host);
3064 qemu_opt_set(opts, "port", port);
3065 if (p[pos] == ',') {
3066 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3069 if (strstart(filename, "telnet:", &p))
3070 qemu_opt_set(opts, "telnet", "on");
3073 if (strstart(filename, "udp:", &p)) {
3074 qemu_opt_set(opts, "backend", "udp");
3075 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3077 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3081 qemu_opt_set(opts, "host", host);
3082 qemu_opt_set(opts, "port", port);
3083 if (p[pos] == '@') {
3085 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3087 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3091 qemu_opt_set(opts, "localaddr", host);
3092 qemu_opt_set(opts, "localport", port);
3096 if (strstart(filename, "unix:", &p)) {
3097 qemu_opt_set(opts, "backend", "socket");
3098 if (qemu_opts_do_parse(opts, p, "path") != 0)
3102 if (strstart(filename, "/dev/parport", NULL) ||
3103 strstart(filename, "/dev/ppi", NULL)) {
3104 qemu_opt_set(opts, "backend", "parport");
3105 qemu_opt_set(opts, "path", filename);
3108 if (strstart(filename, "/dev/", NULL)) {
3109 qemu_opt_set(opts, "backend", "tty");
3110 qemu_opt_set(opts, "path", filename);
3115 qemu_opts_del(opts);
3119 static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3122 const char *path = qemu_opt_get(opts, "path");
3125 error_setg(errp, "chardev: file: no filename given");
3128 backend->file = g_new0(ChardevFile, 1);
3129 backend->file->out = g_strdup(path);
3132 static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3135 backend->stdio = g_new0(ChardevStdio, 1);
3136 backend->stdio->has_signal = true;
3137 backend->stdio->signal =
3138 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3141 static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3144 const char *device = qemu_opt_get(opts, "path");
3146 if (device == NULL) {
3147 error_setg(errp, "chardev: serial/tty: no device path given");
3150 backend->serial = g_new0(ChardevHostdev, 1);
3151 backend->serial->device = g_strdup(device);
3154 static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3157 const char *device = qemu_opt_get(opts, "path");
3159 if (device == NULL) {
3160 error_setg(errp, "chardev: parallel: no device path given");
3163 backend->parallel = g_new0(ChardevHostdev, 1);
3164 backend->parallel->device = g_strdup(device);
3167 static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
3170 const char *device = qemu_opt_get(opts, "path");
3172 if (device == NULL) {
3173 error_setg(errp, "chardev: pipe: no device path given");
3176 backend->pipe = g_new0(ChardevHostdev, 1);
3177 backend->pipe->device = g_strdup(device);
3180 static void qemu_chr_parse_memory(QemuOpts *opts, ChardevBackend *backend,
3185 backend->memory = g_new0(ChardevMemory, 1);
3187 val = qemu_opt_get_number(opts, "size", 0);
3189 backend->memory->has_size = true;
3190 backend->memory->size = val;
3194 typedef struct CharDriver {
3197 CharDriverState *(*open)(QemuOpts *opts);
3198 /* new, qapi-based */
3200 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
3203 static GSList *backends;
3205 void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3209 s = g_malloc0(sizeof(*s));
3210 s->name = g_strdup(name);
3213 backends = g_slist_append(backends, s);
3216 void register_char_driver_qapi(const char *name, int kind,
3217 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3221 s = g_malloc0(sizeof(*s));
3222 s->name = g_strdup(name);
3226 backends = g_slist_append(backends, s);
3229 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3230 void (*init)(struct CharDriverState *s),
3234 CharDriverState *chr;
3237 if (qemu_opts_id(opts) == NULL) {
3238 error_setg(errp, "chardev: no id specified");
3242 if (qemu_opt_get(opts, "backend") == NULL) {
3243 error_setg(errp, "chardev: \"%s\" missing backend",
3244 qemu_opts_id(opts));
3247 for (i = backends; i; i = i->next) {
3250 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
3255 error_setg(errp, "chardev: backend \"%s\" not found",
3256 qemu_opt_get(opts, "backend"));
3261 /* using new, qapi init */
3262 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3263 ChardevReturn *ret = NULL;
3264 const char *id = qemu_opts_id(opts);
3265 const char *bid = NULL;
3267 if (qemu_opt_get_bool(opts, "mux", 0)) {
3268 bid = g_strdup_printf("%s-base", id);
3272 backend->kind = cd->kind;
3274 cd->parse(opts, backend, errp);
3275 if (error_is_set(errp)) {
3279 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
3280 if (error_is_set(errp)) {
3285 qapi_free_ChardevBackend(backend);
3286 qapi_free_ChardevReturn(ret);
3287 backend = g_new0(ChardevBackend, 1);
3288 backend->mux = g_new0(ChardevMux, 1);
3289 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3290 backend->mux->chardev = g_strdup(bid);
3291 ret = qmp_chardev_add(id, backend, errp);
3292 if (error_is_set(errp)) {
3297 chr = qemu_chr_find(id);
3300 qapi_free_ChardevBackend(backend);
3301 qapi_free_ChardevReturn(ret);
3305 chr = cd->open(opts);
3307 error_setg(errp, "chardev: opening backend \"%s\" failed",
3308 qemu_opt_get(opts, "backend"));
3313 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3315 /* if we didn't create the chardev via qmp_chardev_add, we
3316 * need to send the OPENED event here
3318 if (!chr->explicit_be_open) {
3319 qemu_chr_be_event(chr, CHR_EVENT_OPENED);
3321 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3323 if (qemu_opt_get_bool(opts, "mux", 0)) {
3324 CharDriverState *base = chr;
3325 int len = strlen(qemu_opts_id(opts)) + 6;
3326 base->label = g_malloc(len);
3327 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3328 chr = qemu_chr_open_mux(base);
3329 chr->filename = base->filename;
3330 chr->avail_connections = MAX_MUX;
3331 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3333 chr->avail_connections = 1;
3335 chr->label = g_strdup(qemu_opts_id(opts));
3340 qemu_opts_del(opts);
3344 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3347 CharDriverState *chr;
3351 if (strstart(filename, "chardev:", &p)) {
3352 return qemu_chr_find(p);
3355 opts = qemu_chr_parse_compat(label, filename);
3359 chr = qemu_chr_new_from_opts(opts, init, &err);
3360 if (error_is_set(&err)) {
3361 fprintf(stderr, "%s\n", error_get_pretty(err));
3364 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3365 qemu_chr_fe_claim_no_fail(chr);
3366 monitor_init(chr, MONITOR_USE_READLINE);
3371 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3373 if (chr->chr_set_echo) {
3374 chr->chr_set_echo(chr, echo);
3378 void qemu_chr_fe_set_open(struct CharDriverState *chr, int fe_open)
3380 if (chr->fe_open == fe_open) {
3383 chr->fe_open = fe_open;
3384 if (chr->chr_set_fe_open) {
3385 chr->chr_set_fe_open(chr, fe_open);
3389 int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3390 GIOFunc func, void *user_data)
3395 if (s->chr_add_watch == NULL) {
3399 src = s->chr_add_watch(s, cond);
3400 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3401 tag = g_source_attach(src, NULL);
3402 g_source_unref(src);
3407 int qemu_chr_fe_claim(CharDriverState *s)
3409 if (s->avail_connections < 1) {
3412 s->avail_connections--;
3416 void qemu_chr_fe_claim_no_fail(CharDriverState *s)
3418 if (qemu_chr_fe_claim(s) != 0) {
3419 fprintf(stderr, "%s: error chardev \"%s\" already used\n",
3420 __func__, s->label);
3425 void qemu_chr_fe_release(CharDriverState *s)
3427 s->avail_connections++;
3430 void qemu_chr_delete(CharDriverState *chr)
3432 QTAILQ_REMOVE(&chardevs, chr, next);
3433 if (chr->chr_close) {
3434 chr->chr_close(chr);
3436 g_free(chr->filename);
3439 qemu_opts_del(chr->opts);
3444 ChardevInfoList *qmp_query_chardev(Error **errp)
3446 ChardevInfoList *chr_list = NULL;
3447 CharDriverState *chr;
3449 QTAILQ_FOREACH(chr, &chardevs, next) {
3450 ChardevInfoList *info = g_malloc0(sizeof(*info));
3451 info->value = g_malloc0(sizeof(*info->value));
3452 info->value->label = g_strdup(chr->label);
3453 info->value->filename = g_strdup(chr->filename);
3455 info->next = chr_list;
3462 CharDriverState *qemu_chr_find(const char *name)
3464 CharDriverState *chr;
3466 QTAILQ_FOREACH(chr, &chardevs, next) {
3467 if (strcmp(chr->label, name) != 0)
3474 /* Get a character (serial) device interface. */
3475 CharDriverState *qemu_char_get_next_serial(void)
3477 static int next_serial;
3478 CharDriverState *chr;
3480 /* FIXME: This function needs to go away: use chardev properties! */
3482 while (next_serial < MAX_SERIAL_PORTS && serial_hds[next_serial]) {
3483 chr = serial_hds[next_serial++];
3484 qemu_chr_fe_claim_no_fail(chr);
3490 QemuOptsList qemu_chardev_opts = {
3492 .implied_opt_name = "backend",
3493 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3497 .type = QEMU_OPT_STRING,
3500 .type = QEMU_OPT_STRING,
3503 .type = QEMU_OPT_STRING,
3506 .type = QEMU_OPT_STRING,
3508 .name = "localaddr",
3509 .type = QEMU_OPT_STRING,
3511 .name = "localport",
3512 .type = QEMU_OPT_STRING,
3515 .type = QEMU_OPT_NUMBER,
3518 .type = QEMU_OPT_BOOL,
3521 .type = QEMU_OPT_BOOL,
3524 .type = QEMU_OPT_BOOL,
3527 .type = QEMU_OPT_BOOL,
3530 .type = QEMU_OPT_BOOL,
3533 .type = QEMU_OPT_BOOL,
3536 .type = QEMU_OPT_NUMBER,
3539 .type = QEMU_OPT_NUMBER,
3542 .type = QEMU_OPT_NUMBER,
3545 .type = QEMU_OPT_NUMBER,
3548 .type = QEMU_OPT_BOOL,
3551 .type = QEMU_OPT_BOOL,
3554 .type = QEMU_OPT_STRING,
3557 .type = QEMU_OPT_NUMBER,
3560 .type = QEMU_OPT_SIZE,
3562 { /* end of list */ }
3568 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3573 error_setg(errp, "input file not supported");
3577 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3578 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3579 if (out == INVALID_HANDLE_VALUE) {
3580 error_setg(errp, "open %s failed", file->out);
3583 return qemu_chr_open_win_file(out);
3586 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3589 return qemu_chr_open_win_path(serial->device);
3592 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3595 error_setg(errp, "character device backend type 'parallel' not supported");
3601 static int qmp_chardev_open_file_source(char *src, int flags,
3606 TFR(fd = qemu_open(src, flags, 0666));
3608 error_setg(errp, "open %s: %s", src, strerror(errno));
3613 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3615 int flags, in = -1, out = -1;
3617 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3618 out = qmp_chardev_open_file_source(file->out, flags, errp);
3619 if (error_is_set(errp)) {
3625 in = qmp_chardev_open_file_source(file->in, flags, errp);
3626 if (error_is_set(errp)) {
3632 return qemu_chr_open_fd(in, out);
3635 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3638 #ifdef HAVE_CHARDEV_TTY
3641 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3642 if (error_is_set(errp)) {
3645 qemu_set_nonblock(fd);
3646 return qemu_chr_open_tty_fd(fd);
3648 error_setg(errp, "character device backend type 'serial' not supported");
3653 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3656 #ifdef HAVE_CHARDEV_PARPORT
3659 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3660 if (error_is_set(errp)) {
3663 return qemu_chr_open_pp_fd(fd);
3665 error_setg(errp, "character device backend type 'parallel' not supported");
3672 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3675 SocketAddress *addr = sock->addr;
3676 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3677 bool is_listen = sock->has_server ? sock->server : true;
3678 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3679 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3683 fd = socket_listen(addr, errp);
3685 fd = socket_connect(addr, errp, NULL, NULL);
3687 if (error_is_set(errp)) {
3690 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3691 is_telnet, is_waitconnect, errp);
3694 static CharDriverState *qmp_chardev_open_udp(ChardevUdp *udp,
3699 fd = socket_dgram(udp->remote, udp->local, errp);
3700 if (error_is_set(errp)) {
3703 return qemu_chr_open_udp_fd(fd);
3706 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3709 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3710 CharDriverState *base, *chr = NULL;
3712 chr = qemu_chr_find(id);
3714 error_setg(errp, "Chardev '%s' already exists", id);
3719 switch (backend->kind) {
3720 case CHARDEV_BACKEND_KIND_FILE:
3721 chr = qmp_chardev_open_file(backend->file, errp);
3723 case CHARDEV_BACKEND_KIND_SERIAL:
3724 chr = qmp_chardev_open_serial(backend->serial, errp);
3726 case CHARDEV_BACKEND_KIND_PARALLEL:
3727 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3729 case CHARDEV_BACKEND_KIND_PIPE:
3730 chr = qemu_chr_open_pipe(backend->pipe);
3732 case CHARDEV_BACKEND_KIND_SOCKET:
3733 chr = qmp_chardev_open_socket(backend->socket, errp);
3735 case CHARDEV_BACKEND_KIND_UDP:
3736 chr = qmp_chardev_open_udp(backend->udp, errp);
3738 #ifdef HAVE_CHARDEV_TTY
3739 case CHARDEV_BACKEND_KIND_PTY:
3740 chr = qemu_chr_open_pty(id, ret);
3743 case CHARDEV_BACKEND_KIND_NULL:
3744 chr = qemu_chr_open_null();
3746 case CHARDEV_BACKEND_KIND_MUX:
3747 base = qemu_chr_find(backend->mux->chardev);
3749 error_setg(errp, "mux: base chardev %s not found",
3750 backend->mux->chardev);
3753 chr = qemu_chr_open_mux(base);
3755 case CHARDEV_BACKEND_KIND_MSMOUSE:
3756 chr = qemu_chr_open_msmouse();
3758 #ifdef CONFIG_BRLAPI
3759 case CHARDEV_BACKEND_KIND_BRAILLE:
3760 chr = chr_baum_init();
3763 case CHARDEV_BACKEND_KIND_STDIO:
3764 chr = qemu_chr_open_stdio(backend->stdio);
3767 case CHARDEV_BACKEND_KIND_CONSOLE:
3768 chr = qemu_chr_open_win_con();
3772 case CHARDEV_BACKEND_KIND_SPICEVMC:
3773 chr = qemu_chr_open_spice_vmc(backend->spicevmc->type);
3775 case CHARDEV_BACKEND_KIND_SPICEPORT:
3776 chr = qemu_chr_open_spice_port(backend->spiceport->fqdn);
3779 case CHARDEV_BACKEND_KIND_VC:
3780 chr = vc_init(backend->vc);
3782 case CHARDEV_BACKEND_KIND_MEMORY:
3783 chr = qemu_chr_open_memory(backend->memory, errp);
3786 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3790 if (chr == NULL && !error_is_set(errp)) {
3791 error_setg(errp, "Failed to create chardev");
3794 chr->label = g_strdup(id);
3795 chr->avail_connections =
3796 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
3797 if (!chr->filename) {
3798 chr->filename = g_strdup(ChardevBackendKind_lookup[backend->kind]);
3800 if (!chr->explicit_be_open) {
3801 qemu_chr_be_event(chr, CHR_EVENT_OPENED);
3803 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3811 void qmp_chardev_remove(const char *id, Error **errp)
3813 CharDriverState *chr;
3815 chr = qemu_chr_find(id);
3817 error_setg(errp, "Chardev '%s' not found", id);
3820 if (chr->chr_can_read || chr->chr_read ||
3821 chr->chr_event || chr->handler_opaque) {
3822 error_setg(errp, "Chardev '%s' is busy", id);
3825 qemu_chr_delete(chr);
3828 static void register_types(void)
3830 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
3831 register_char_driver("socket", qemu_chr_open_socket);
3832 register_char_driver("udp", qemu_chr_open_udp);
3833 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
3834 qemu_chr_parse_memory);
3835 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3836 qemu_chr_parse_file_out);
3837 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3838 qemu_chr_parse_stdio);
3839 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3840 qemu_chr_parse_serial);
3841 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3842 qemu_chr_parse_serial);
3843 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3844 qemu_chr_parse_parallel);
3845 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3846 qemu_chr_parse_parallel);
3847 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
3848 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
3849 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
3850 qemu_chr_parse_pipe);
3853 type_init(register_types);