4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu-common.h"
25 #include "monitor/monitor.h"
26 #include "ui/console.h"
27 #include "sysemu/sysemu.h"
28 #include "qemu/timer.h"
29 #include "char/char.h"
31 #include "qmp-commands.h"
41 #include <sys/times.h>
45 #include <sys/ioctl.h>
46 #include <sys/resource.h>
47 #include <sys/socket.h>
48 #include <netinet/in.h>
50 #include <arpa/inet.h>
53 #include <sys/select.h>
56 #if defined(__GLIBC__)
58 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
63 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
64 #include <dev/ppbus/ppi.h>
65 #include <dev/ppbus/ppbconf.h>
66 #elif defined(__DragonFly__)
67 #include <dev/misc/ppi/ppi.h>
68 #include <bus/ppbus/ppbconf.h>
74 #include <linux/ppdev.h>
75 #include <linux/parport.h>
79 #include <sys/ethernet.h>
80 #include <sys/sockio.h>
81 #include <netinet/arp.h>
82 #include <netinet/in.h>
83 #include <netinet/in_systm.h>
84 #include <netinet/ip.h>
85 #include <netinet/ip_icmp.h> // must come after ip.h
86 #include <netinet/udp.h>
87 #include <netinet/tcp.h>
95 #include "qemu/sockets.h"
96 #include "ui/qemu-spice.h"
98 #define READ_BUF_LEN 4096
100 /***********************************************************/
101 /* character device */
103 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
104 QTAILQ_HEAD_INITIALIZER(chardevs);
106 void qemu_chr_be_event(CharDriverState *s, int event)
108 /* Keep track if the char device is open */
110 case CHR_EVENT_OPENED:
113 case CHR_EVENT_CLOSED:
120 s->chr_event(s->handler_opaque, event);
123 static gboolean qemu_chr_generic_open_bh(gpointer opaque)
125 CharDriverState *s = opaque;
126 qemu_chr_be_event(s, CHR_EVENT_OPENED);
131 void qemu_chr_generic_open(CharDriverState *s)
133 if (s->idle_tag == 0) {
134 s->idle_tag = g_idle_add(qemu_chr_generic_open_bh, s);
138 int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
140 return s->chr_write(s, buf, len);
143 int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
147 return s->chr_ioctl(s, cmd, arg);
150 int qemu_chr_be_can_write(CharDriverState *s)
152 if (!s->chr_can_read)
154 return s->chr_can_read(s->handler_opaque);
157 void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
160 s->chr_read(s->handler_opaque, buf, len);
164 int qemu_chr_fe_get_msgfd(CharDriverState *s)
166 return s->get_msgfd ? s->get_msgfd(s) : -1;
169 int qemu_chr_add_client(CharDriverState *s, int fd)
171 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
174 void qemu_chr_accept_input(CharDriverState *s)
176 if (s->chr_accept_input)
177 s->chr_accept_input(s);
181 void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
183 char buf[READ_BUF_LEN];
186 vsnprintf(buf, sizeof(buf), fmt, ap);
187 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
191 void qemu_chr_add_handlers(CharDriverState *s,
192 IOCanReadHandler *fd_can_read,
193 IOReadHandler *fd_read,
194 IOEventHandler *fd_event,
197 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
198 /* chr driver being released. */
199 ++s->avail_connections;
201 s->chr_can_read = fd_can_read;
202 s->chr_read = fd_read;
203 s->chr_event = fd_event;
204 s->handler_opaque = opaque;
205 if (s->chr_update_read_handler)
206 s->chr_update_read_handler(s);
208 /* We're connecting to an already opened device, so let's make sure we
209 also get the open event */
211 qemu_chr_generic_open(s);
215 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
220 static CharDriverState *qemu_chr_open_null(void)
222 CharDriverState *chr;
224 chr = g_malloc0(sizeof(CharDriverState));
225 chr->chr_write = null_chr_write;
229 /* MUX driver for serial I/O splitting */
231 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
232 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
234 IOCanReadHandler *chr_can_read[MAX_MUX];
235 IOReadHandler *chr_read[MAX_MUX];
236 IOEventHandler *chr_event[MAX_MUX];
237 void *ext_opaque[MAX_MUX];
238 CharDriverState *drv;
243 /* Intermediate input buffer allows to catch escape sequences even if the
244 currently active device is not accepting any input - but only until it
246 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
251 int64_t timestamps_start;
255 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
257 MuxDriver *d = chr->opaque;
259 if (!d->timestamps) {
260 ret = d->drv->chr_write(d->drv, buf, len);
265 for (i = 0; i < len; i++) {
271 ti = qemu_get_clock_ms(rt_clock);
272 if (d->timestamps_start == -1)
273 d->timestamps_start = ti;
274 ti -= d->timestamps_start;
276 snprintf(buf1, sizeof(buf1),
277 "[%02d:%02d:%02d.%03d] ",
282 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
285 ret += d->drv->chr_write(d->drv, buf+i, 1);
286 if (buf[i] == '\n') {
294 static const char * const mux_help[] = {
295 "% h print this help\n\r",
296 "% x exit emulator\n\r",
297 "% s save disk data back to file (if -snapshot)\n\r",
298 "% t toggle console timestamps\n\r"
299 "% b send break (magic sysrq)\n\r",
300 "% c switch between console and monitor\n\r",
305 int term_escape_char = 0x01; /* ctrl-a is used for escape */
306 static void mux_print_help(CharDriverState *chr)
309 char ebuf[15] = "Escape-Char";
310 char cbuf[50] = "\n\r";
312 if (term_escape_char > 0 && term_escape_char < 26) {
313 snprintf(cbuf, sizeof(cbuf), "\n\r");
314 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
316 snprintf(cbuf, sizeof(cbuf),
317 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
320 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
321 for (i = 0; mux_help[i] != NULL; i++) {
322 for (j=0; mux_help[i][j] != '\0'; j++) {
323 if (mux_help[i][j] == '%')
324 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
326 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
331 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
333 if (d->chr_event[mux_nr])
334 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
337 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
339 if (d->term_got_escape) {
340 d->term_got_escape = 0;
341 if (ch == term_escape_char)
350 const char *term = "QEMU: Terminated\n\r";
351 chr->chr_write(chr,(uint8_t *)term,strlen(term));
359 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
362 /* Switch to the next registered device */
363 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
365 if (d->focus >= d->mux_cnt)
367 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
370 d->timestamps = !d->timestamps;
371 d->timestamps_start = -1;
375 } else if (ch == term_escape_char) {
376 d->term_got_escape = 1;
384 static void mux_chr_accept_input(CharDriverState *chr)
386 MuxDriver *d = chr->opaque;
389 while (d->prod[m] != d->cons[m] &&
390 d->chr_can_read[m] &&
391 d->chr_can_read[m](d->ext_opaque[m])) {
392 d->chr_read[m](d->ext_opaque[m],
393 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
397 static int mux_chr_can_read(void *opaque)
399 CharDriverState *chr = opaque;
400 MuxDriver *d = chr->opaque;
403 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
405 if (d->chr_can_read[m])
406 return d->chr_can_read[m](d->ext_opaque[m]);
410 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
412 CharDriverState *chr = opaque;
413 MuxDriver *d = chr->opaque;
417 mux_chr_accept_input (opaque);
419 for(i = 0; i < size; i++)
420 if (mux_proc_byte(chr, d, buf[i])) {
421 if (d->prod[m] == d->cons[m] &&
422 d->chr_can_read[m] &&
423 d->chr_can_read[m](d->ext_opaque[m]))
424 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
426 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
430 static void mux_chr_event(void *opaque, int event)
432 CharDriverState *chr = opaque;
433 MuxDriver *d = chr->opaque;
436 /* Send the event to all registered listeners */
437 for (i = 0; i < d->mux_cnt; i++)
438 mux_chr_send_event(d, i, event);
441 static void mux_chr_update_read_handler(CharDriverState *chr)
443 MuxDriver *d = chr->opaque;
445 if (d->mux_cnt >= MAX_MUX) {
446 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
449 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
450 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
451 d->chr_read[d->mux_cnt] = chr->chr_read;
452 d->chr_event[d->mux_cnt] = chr->chr_event;
453 /* Fix up the real driver with mux routines */
454 if (d->mux_cnt == 0) {
455 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
458 if (d->focus != -1) {
459 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
461 d->focus = d->mux_cnt;
463 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
466 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
468 CharDriverState *chr;
471 chr = g_malloc0(sizeof(CharDriverState));
472 d = g_malloc0(sizeof(MuxDriver));
477 chr->chr_write = mux_chr_write;
478 chr->chr_update_read_handler = mux_chr_update_read_handler;
479 chr->chr_accept_input = mux_chr_accept_input;
480 /* Frontend guest-open / -close notification is not support with muxes */
481 chr->chr_guest_open = NULL;
482 chr->chr_guest_close = NULL;
484 /* Muxes are always open on creation */
485 qemu_chr_generic_open(chr);
492 int send_all(int fd, const void *buf, int len1)
498 ret = send(fd, buf, len, 0);
500 errno = WSAGetLastError();
501 if (errno != WSAEWOULDBLOCK) {
504 } else if (ret == 0) {
516 int send_all(int fd, const void *_buf, int len1)
519 const uint8_t *buf = _buf;
523 ret = write(fd, buf, len);
525 if (errno != EINTR && errno != EAGAIN)
527 } else if (ret == 0) {
537 int recv_all(int fd, void *_buf, int len1, bool single_read)
543 while ((len > 0) && (ret = read(fd, buf, len)) != 0) {
545 if (errno != EINTR && errno != EAGAIN) {
562 typedef struct IOWatchPoll
567 IOCanReadHandler *fd_can_read;
570 QTAILQ_ENTRY(IOWatchPoll) node;
573 static QTAILQ_HEAD(, IOWatchPoll) io_watch_poll_list =
574 QTAILQ_HEAD_INITIALIZER(io_watch_poll_list);
576 static IOWatchPoll *io_watch_poll_from_source(GSource *source)
580 QTAILQ_FOREACH(i, &io_watch_poll_list, node) {
581 if (i->src == source) {
589 static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
591 IOWatchPoll *iwp = io_watch_poll_from_source(source);
593 iwp->max_size = iwp->fd_can_read(iwp->opaque);
594 if (iwp->max_size == 0) {
598 return g_io_watch_funcs.prepare(source, timeout_);
601 static gboolean io_watch_poll_check(GSource *source)
603 IOWatchPoll *iwp = io_watch_poll_from_source(source);
605 if (iwp->max_size == 0) {
609 return g_io_watch_funcs.check(source);
612 static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
615 return g_io_watch_funcs.dispatch(source, callback, user_data);
618 static void io_watch_poll_finalize(GSource *source)
620 IOWatchPoll *iwp = io_watch_poll_from_source(source);
621 QTAILQ_REMOVE(&io_watch_poll_list, iwp, node);
622 g_io_watch_funcs.finalize(source);
625 static GSourceFuncs io_watch_poll_funcs = {
626 .prepare = io_watch_poll_prepare,
627 .check = io_watch_poll_check,
628 .dispatch = io_watch_poll_dispatch,
629 .finalize = io_watch_poll_finalize,
632 /* Can only be used for read */
633 static guint io_add_watch_poll(GIOChannel *channel,
634 IOCanReadHandler *fd_can_read,
642 src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
643 g_source_set_funcs(src, &io_watch_poll_funcs);
644 g_source_set_callback(src, (GSourceFunc)fd_read, user_data, NULL);
645 tag = g_source_attach(src, NULL);
648 iwp = g_malloc0(sizeof(*iwp));
651 iwp->fd_can_read = fd_can_read;
652 iwp->opaque = user_data;
654 QTAILQ_INSERT_HEAD(&io_watch_poll_list, iwp, node);
660 static GIOChannel *io_channel_from_fd(int fd)
668 chan = g_io_channel_unix_new(fd);
670 g_io_channel_set_encoding(chan, NULL, NULL);
671 g_io_channel_set_buffered(chan, FALSE);
677 static GIOChannel *io_channel_from_socket(int fd)
686 chan = g_io_channel_win32_new_socket(fd);
688 chan = g_io_channel_unix_new(fd);
691 g_io_channel_set_encoding(chan, NULL, NULL);
692 g_io_channel_set_buffered(chan, FALSE);
697 static int io_channel_send_all(GIOChannel *fd, const void *_buf, int len1)
702 const uint8_t *buf = _buf;
706 status = g_io_channel_write_chars(fd, (const gchar *)buf, len,
707 &bytes_written, NULL);
708 if (status != G_IO_STATUS_NORMAL) {
709 if (status == G_IO_STATUS_AGAIN) {
716 } else if (status == G_IO_STATUS_EOF) {
719 buf += bytes_written;
720 len -= bytes_written;
728 typedef struct FDCharDriver {
729 CharDriverState *chr;
730 GIOChannel *fd_in, *fd_out;
733 QTAILQ_ENTRY(FDCharDriver) node;
736 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
738 FDCharDriver *s = chr->opaque;
740 return io_channel_send_all(s->fd_out, buf, len);
743 static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
745 CharDriverState *chr = opaque;
746 FDCharDriver *s = chr->opaque;
748 uint8_t buf[READ_BUF_LEN];
753 if (len > s->max_size) {
760 status = g_io_channel_read_chars(chan, (gchar *)buf,
761 len, &bytes_read, NULL);
762 if (status == G_IO_STATUS_EOF) {
763 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
766 if (status == G_IO_STATUS_NORMAL) {
767 qemu_chr_be_write(chr, buf, bytes_read);
773 static int fd_chr_read_poll(void *opaque)
775 CharDriverState *chr = opaque;
776 FDCharDriver *s = chr->opaque;
778 s->max_size = qemu_chr_be_can_write(chr);
782 static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
784 FDCharDriver *s = chr->opaque;
785 return g_io_create_watch(s->fd_out, cond);
788 static void fd_chr_update_read_handler(CharDriverState *chr)
790 FDCharDriver *s = chr->opaque;
793 g_source_remove(s->fd_in_tag);
797 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
801 static void fd_chr_close(struct CharDriverState *chr)
803 FDCharDriver *s = chr->opaque;
806 g_source_remove(s->fd_in_tag);
811 g_io_channel_unref(s->fd_in);
814 g_io_channel_unref(s->fd_out);
818 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
821 /* open a character device to a unix fd */
822 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
824 CharDriverState *chr;
827 chr = g_malloc0(sizeof(CharDriverState));
828 s = g_malloc0(sizeof(FDCharDriver));
829 s->fd_in = io_channel_from_fd(fd_in);
830 s->fd_out = io_channel_from_fd(fd_out);
831 fcntl(fd_out, F_SETFL, O_NONBLOCK);
834 chr->chr_add_watch = fd_chr_add_watch;
835 chr->chr_write = fd_chr_write;
836 chr->chr_update_read_handler = fd_chr_update_read_handler;
837 chr->chr_close = fd_chr_close;
839 qemu_chr_generic_open(chr);
844 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
847 char filename_in[256], filename_out[256];
848 const char *filename = qemu_opt_get(opts, "path");
850 if (filename == NULL) {
851 fprintf(stderr, "chardev: pipe: no filename given\n");
855 snprintf(filename_in, 256, "%s.in", filename);
856 snprintf(filename_out, 256, "%s.out", filename);
857 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
858 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
859 if (fd_in < 0 || fd_out < 0) {
864 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
869 return qemu_chr_open_fd(fd_in, fd_out);
872 /* init terminal so that we can grab keys */
873 static struct termios oldtty;
874 static int old_fd0_flags;
875 static bool stdio_allow_signal;
877 static void term_exit(void)
879 tcsetattr (0, TCSANOW, &oldtty);
880 fcntl(0, F_SETFL, old_fd0_flags);
883 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
889 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
890 |INLCR|IGNCR|ICRNL|IXON);
891 tty.c_oflag |= OPOST;
892 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
893 tty.c_cflag &= ~(CSIZE|PARENB);
898 /* if graphical mode, we allow Ctrl-C handling */
899 if (!stdio_allow_signal)
900 tty.c_lflag &= ~ISIG;
902 tcsetattr (0, TCSANOW, &tty);
905 static void qemu_chr_close_stdio(struct CharDriverState *chr)
911 static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
913 CharDriverState *chr;
915 if (is_daemonized()) {
916 error_report("cannot use stdio with -daemonize");
919 old_fd0_flags = fcntl(0, F_GETFL);
920 tcgetattr (0, &oldtty);
921 fcntl(0, F_SETFL, O_NONBLOCK);
924 chr = qemu_chr_open_fd(0, 1);
925 chr->chr_close = qemu_chr_close_stdio;
926 chr->chr_set_echo = qemu_chr_set_echo_stdio;
927 stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
928 display_type != DT_NOGRAPHIC);
929 qemu_chr_fe_set_echo(chr, false);
935 /* Once Solaris has openpty(), this is going to be removed. */
936 static int openpty(int *amaster, int *aslave, char *name,
937 struct termios *termp, struct winsize *winp)
940 int mfd = -1, sfd = -1;
942 *amaster = *aslave = -1;
944 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
948 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
951 if ((slave = ptsname(mfd)) == NULL)
954 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
957 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
958 (termp != NULL && tcgetattr(sfd, termp) < 0))
966 ioctl(sfd, TIOCSWINSZ, winp);
977 static void cfmakeraw (struct termios *termios_p)
979 termios_p->c_iflag &=
980 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
981 termios_p->c_oflag &= ~OPOST;
982 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
983 termios_p->c_cflag &= ~(CSIZE|PARENB);
984 termios_p->c_cflag |= CS8;
986 termios_p->c_cc[VMIN] = 0;
987 termios_p->c_cc[VTIME] = 0;
991 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
992 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
993 || defined(__GLIBC__)
995 #define HAVE_CHARDEV_TTY 1
1006 static void pty_chr_update_read_handler(CharDriverState *chr);
1007 static void pty_chr_state(CharDriverState *chr, int connected);
1009 static gboolean pty_chr_timer(gpointer opaque)
1011 struct CharDriverState *chr = opaque;
1012 PtyCharDriver *s = chr->opaque;
1018 /* If we arrive here without polling being cleared due
1019 * read returning -EIO, then we are (re-)connected */
1020 pty_chr_state(chr, 1);
1025 pty_chr_update_read_handler(chr);
1031 static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1033 PtyCharDriver *s = chr->opaque;
1036 g_source_remove(s->timer_tag);
1041 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1043 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1047 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1049 PtyCharDriver *s = chr->opaque;
1051 if (!s->connected) {
1052 /* guest sends data, check for (re-)connect */
1053 pty_chr_update_read_handler(chr);
1056 return io_channel_send_all(s->fd, buf, len);
1059 static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1061 PtyCharDriver *s = chr->opaque;
1062 return g_io_create_watch(s->fd, cond);
1065 static int pty_chr_read_poll(void *opaque)
1067 CharDriverState *chr = opaque;
1068 PtyCharDriver *s = chr->opaque;
1070 s->read_bytes = qemu_chr_be_can_write(chr);
1071 return s->read_bytes;
1074 static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
1076 CharDriverState *chr = opaque;
1077 PtyCharDriver *s = chr->opaque;
1079 uint8_t buf[READ_BUF_LEN];
1083 if (len > s->read_bytes)
1084 len = s->read_bytes;
1087 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1088 if (status != G_IO_STATUS_NORMAL) {
1089 pty_chr_state(chr, 0);
1092 pty_chr_state(chr, 1);
1093 qemu_chr_be_write(chr, buf, size);
1098 static void pty_chr_update_read_handler(CharDriverState *chr)
1100 PtyCharDriver *s = chr->opaque;
1103 g_source_remove(s->fd_tag);
1106 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
1109 * Short timeout here: just need wait long enougth that qemu makes
1110 * it through the poll loop once. When reconnected we want a
1111 * short timeout so we notice it almost instantly. Otherwise
1112 * read() gives us -EIO instantly, making pty_chr_state() reset the
1113 * timeout to the normal (much longer) poll interval before the
1116 pty_chr_rearm_timer(chr, 10);
1119 static void pty_chr_state(CharDriverState *chr, int connected)
1121 PtyCharDriver *s = chr->opaque;
1124 g_source_remove(s->fd_tag);
1128 /* (re-)connect poll interval for idle guests: once per second.
1129 * We check more frequently in case the guests sends data to
1130 * the virtual device linked to our pty. */
1131 pty_chr_rearm_timer(chr, 1000);
1134 qemu_chr_generic_open(chr);
1140 static void pty_chr_close(struct CharDriverState *chr)
1142 PtyCharDriver *s = chr->opaque;
1146 g_source_remove(s->fd_tag);
1148 fd = g_io_channel_unix_get_fd(s->fd);
1149 g_io_channel_unref(s->fd);
1152 g_source_remove(s->timer_tag);
1155 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1158 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
1160 CharDriverState *chr;
1164 int master_fd, slave_fd, len;
1165 #if defined(__OpenBSD__) || defined(__DragonFly__)
1166 char pty_name[PATH_MAX];
1167 #define q_ptsname(x) pty_name
1169 char *pty_name = NULL;
1170 #define q_ptsname(x) ptsname(x)
1173 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1177 /* Set raw attributes on the pty. */
1178 tcgetattr(slave_fd, &tty);
1180 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1183 chr = g_malloc0(sizeof(CharDriverState));
1185 len = strlen(q_ptsname(master_fd)) + 5;
1186 chr->filename = g_malloc(len);
1187 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1188 qemu_opt_set(opts, "path", q_ptsname(master_fd));
1190 label = qemu_opts_id(opts);
1191 fprintf(stderr, "char device redirected to %s%s%s%s\n",
1192 q_ptsname(master_fd),
1193 label ? " (label " : "",
1197 s = g_malloc0(sizeof(PtyCharDriver));
1199 chr->chr_write = pty_chr_write;
1200 chr->chr_update_read_handler = pty_chr_update_read_handler;
1201 chr->chr_close = pty_chr_close;
1202 chr->chr_add_watch = pty_chr_add_watch;
1204 s->fd = io_channel_from_fd(master_fd);
1210 static void tty_serial_init(int fd, int speed,
1211 int parity, int data_bits, int stop_bits)
1217 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1218 speed, parity, data_bits, stop_bits);
1220 tcgetattr (fd, &tty);
1222 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1223 speed = speed * 10 / 11;
1240 /* Non-Posix values follow. They may be unsupported on some systems. */
1242 check_speed(115200);
1244 check_speed(230400);
1247 check_speed(460800);
1250 check_speed(500000);
1253 check_speed(576000);
1256 check_speed(921600);
1259 check_speed(1000000);
1262 check_speed(1152000);
1265 check_speed(1500000);
1268 check_speed(2000000);
1271 check_speed(2500000);
1274 check_speed(3000000);
1277 check_speed(3500000);
1280 check_speed(4000000);
1285 cfsetispeed(&tty, spd);
1286 cfsetospeed(&tty, spd);
1288 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1289 |INLCR|IGNCR|ICRNL|IXON);
1290 tty.c_oflag |= OPOST;
1291 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1292 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1313 tty.c_cflag |= PARENB;
1316 tty.c_cflag |= PARENB | PARODD;
1320 tty.c_cflag |= CSTOPB;
1322 tcsetattr (fd, TCSANOW, &tty);
1325 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1327 FDCharDriver *s = chr->opaque;
1330 case CHR_IOCTL_SERIAL_SET_PARAMS:
1332 QEMUSerialSetParams *ssp = arg;
1333 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1334 ssp->speed, ssp->parity,
1335 ssp->data_bits, ssp->stop_bits);
1338 case CHR_IOCTL_SERIAL_SET_BREAK:
1340 int enable = *(int *)arg;
1342 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1346 case CHR_IOCTL_SERIAL_GET_TIOCM:
1349 int *targ = (int *)arg;
1350 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1352 if (sarg & TIOCM_CTS)
1353 *targ |= CHR_TIOCM_CTS;
1354 if (sarg & TIOCM_CAR)
1355 *targ |= CHR_TIOCM_CAR;
1356 if (sarg & TIOCM_DSR)
1357 *targ |= CHR_TIOCM_DSR;
1358 if (sarg & TIOCM_RI)
1359 *targ |= CHR_TIOCM_RI;
1360 if (sarg & TIOCM_DTR)
1361 *targ |= CHR_TIOCM_DTR;
1362 if (sarg & TIOCM_RTS)
1363 *targ |= CHR_TIOCM_RTS;
1366 case CHR_IOCTL_SERIAL_SET_TIOCM:
1368 int sarg = *(int *)arg;
1370 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1371 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1372 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1373 if (sarg & CHR_TIOCM_CTS)
1375 if (sarg & CHR_TIOCM_CAR)
1377 if (sarg & CHR_TIOCM_DSR)
1379 if (sarg & CHR_TIOCM_RI)
1381 if (sarg & CHR_TIOCM_DTR)
1383 if (sarg & CHR_TIOCM_RTS)
1385 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1394 static void qemu_chr_close_tty(CharDriverState *chr)
1396 FDCharDriver *s = chr->opaque;
1400 fd = g_io_channel_unix_get_fd(s->fd_in);
1410 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1412 CharDriverState *chr;
1414 tty_serial_init(fd, 115200, 'N', 8, 1);
1415 chr = qemu_chr_open_fd(fd, fd);
1416 chr->chr_ioctl = tty_serial_ioctl;
1417 chr->chr_close = qemu_chr_close_tty;
1421 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1423 const char *filename = qemu_opt_get(opts, "path");
1426 TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
1430 return qemu_chr_open_tty_fd(fd);
1432 #endif /* __linux__ || __sun__ */
1434 #if defined(__linux__)
1436 #define HAVE_CHARDEV_PARPORT 1
1441 } ParallelCharDriver;
1443 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1445 if (s->mode != mode) {
1447 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1454 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1456 ParallelCharDriver *drv = chr->opaque;
1461 case CHR_IOCTL_PP_READ_DATA:
1462 if (ioctl(fd, PPRDATA, &b) < 0)
1464 *(uint8_t *)arg = b;
1466 case CHR_IOCTL_PP_WRITE_DATA:
1467 b = *(uint8_t *)arg;
1468 if (ioctl(fd, PPWDATA, &b) < 0)
1471 case CHR_IOCTL_PP_READ_CONTROL:
1472 if (ioctl(fd, PPRCONTROL, &b) < 0)
1474 /* Linux gives only the lowest bits, and no way to know data
1475 direction! For better compatibility set the fixed upper
1477 *(uint8_t *)arg = b | 0xc0;
1479 case CHR_IOCTL_PP_WRITE_CONTROL:
1480 b = *(uint8_t *)arg;
1481 if (ioctl(fd, PPWCONTROL, &b) < 0)
1484 case CHR_IOCTL_PP_READ_STATUS:
1485 if (ioctl(fd, PPRSTATUS, &b) < 0)
1487 *(uint8_t *)arg = b;
1489 case CHR_IOCTL_PP_DATA_DIR:
1490 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1493 case CHR_IOCTL_PP_EPP_READ_ADDR:
1494 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1495 struct ParallelIOArg *parg = arg;
1496 int n = read(fd, parg->buffer, parg->count);
1497 if (n != parg->count) {
1502 case CHR_IOCTL_PP_EPP_READ:
1503 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1504 struct ParallelIOArg *parg = arg;
1505 int n = read(fd, parg->buffer, parg->count);
1506 if (n != parg->count) {
1511 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1512 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1513 struct ParallelIOArg *parg = arg;
1514 int n = write(fd, parg->buffer, parg->count);
1515 if (n != parg->count) {
1520 case CHR_IOCTL_PP_EPP_WRITE:
1521 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1522 struct ParallelIOArg *parg = arg;
1523 int n = write(fd, parg->buffer, parg->count);
1524 if (n != parg->count) {
1535 static void pp_close(CharDriverState *chr)
1537 ParallelCharDriver *drv = chr->opaque;
1540 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1541 ioctl(fd, PPRELEASE);
1544 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1547 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1549 CharDriverState *chr;
1550 ParallelCharDriver *drv;
1552 if (ioctl(fd, PPCLAIM) < 0) {
1557 drv = g_malloc0(sizeof(ParallelCharDriver));
1559 drv->mode = IEEE1284_MODE_COMPAT;
1561 chr = g_malloc0(sizeof(CharDriverState));
1562 chr->chr_write = null_chr_write;
1563 chr->chr_ioctl = pp_ioctl;
1564 chr->chr_close = pp_close;
1567 qemu_chr_generic_open(chr);
1571 #endif /* __linux__ */
1573 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1575 #define HAVE_CHARDEV_PARPORT 1
1577 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1579 int fd = (int)(intptr_t)chr->opaque;
1583 case CHR_IOCTL_PP_READ_DATA:
1584 if (ioctl(fd, PPIGDATA, &b) < 0)
1586 *(uint8_t *)arg = b;
1588 case CHR_IOCTL_PP_WRITE_DATA:
1589 b = *(uint8_t *)arg;
1590 if (ioctl(fd, PPISDATA, &b) < 0)
1593 case CHR_IOCTL_PP_READ_CONTROL:
1594 if (ioctl(fd, PPIGCTRL, &b) < 0)
1596 *(uint8_t *)arg = b;
1598 case CHR_IOCTL_PP_WRITE_CONTROL:
1599 b = *(uint8_t *)arg;
1600 if (ioctl(fd, PPISCTRL, &b) < 0)
1603 case CHR_IOCTL_PP_READ_STATUS:
1604 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1606 *(uint8_t *)arg = b;
1614 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1616 CharDriverState *chr;
1618 chr = g_malloc0(sizeof(CharDriverState));
1619 chr->opaque = (void *)(intptr_t)fd;
1620 chr->chr_write = null_chr_write;
1621 chr->chr_ioctl = pp_ioctl;
1630 HANDLE hcom, hrecv, hsend;
1631 OVERLAPPED orecv, osend;
1638 HANDLE hInputReadyEvent;
1639 HANDLE hInputDoneEvent;
1640 HANDLE hInputThread;
1641 uint8_t win_stdio_buf;
1642 } WinStdioCharState;
1644 #define NSENDBUF 2048
1645 #define NRECVBUF 2048
1646 #define MAXCONNECT 1
1647 #define NTIMEOUT 5000
1649 static int win_chr_poll(void *opaque);
1650 static int win_chr_pipe_poll(void *opaque);
1652 static void win_chr_close(CharDriverState *chr)
1654 WinCharState *s = chr->opaque;
1657 CloseHandle(s->hsend);
1661 CloseHandle(s->hrecv);
1665 CloseHandle(s->hcom);
1669 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1671 qemu_del_polling_cb(win_chr_poll, chr);
1673 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1676 static int win_chr_init(CharDriverState *chr, const char *filename)
1678 WinCharState *s = chr->opaque;
1680 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1685 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1687 fprintf(stderr, "Failed CreateEvent\n");
1690 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1692 fprintf(stderr, "Failed CreateEvent\n");
1696 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1697 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1698 if (s->hcom == INVALID_HANDLE_VALUE) {
1699 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1704 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1705 fprintf(stderr, "Failed SetupComm\n");
1709 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1710 size = sizeof(COMMCONFIG);
1711 GetDefaultCommConfig(filename, &comcfg, &size);
1712 comcfg.dcb.DCBlength = sizeof(DCB);
1713 CommConfigDialog(filename, NULL, &comcfg);
1715 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1716 fprintf(stderr, "Failed SetCommState\n");
1720 if (!SetCommMask(s->hcom, EV_ERR)) {
1721 fprintf(stderr, "Failed SetCommMask\n");
1725 cto.ReadIntervalTimeout = MAXDWORD;
1726 if (!SetCommTimeouts(s->hcom, &cto)) {
1727 fprintf(stderr, "Failed SetCommTimeouts\n");
1731 if (!ClearCommError(s->hcom, &err, &comstat)) {
1732 fprintf(stderr, "Failed ClearCommError\n");
1735 qemu_add_polling_cb(win_chr_poll, chr);
1743 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1745 WinCharState *s = chr->opaque;
1746 DWORD len, ret, size, err;
1749 ZeroMemory(&s->osend, sizeof(s->osend));
1750 s->osend.hEvent = s->hsend;
1753 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1755 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1757 err = GetLastError();
1758 if (err == ERROR_IO_PENDING) {
1759 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1777 static int win_chr_read_poll(CharDriverState *chr)
1779 WinCharState *s = chr->opaque;
1781 s->max_size = qemu_chr_be_can_write(chr);
1785 static void win_chr_readfile(CharDriverState *chr)
1787 WinCharState *s = chr->opaque;
1789 uint8_t buf[READ_BUF_LEN];
1792 ZeroMemory(&s->orecv, sizeof(s->orecv));
1793 s->orecv.hEvent = s->hrecv;
1794 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1796 err = GetLastError();
1797 if (err == ERROR_IO_PENDING) {
1798 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1803 qemu_chr_be_write(chr, buf, size);
1807 static void win_chr_read(CharDriverState *chr)
1809 WinCharState *s = chr->opaque;
1811 if (s->len > s->max_size)
1812 s->len = s->max_size;
1816 win_chr_readfile(chr);
1819 static int win_chr_poll(void *opaque)
1821 CharDriverState *chr = opaque;
1822 WinCharState *s = chr->opaque;
1826 ClearCommError(s->hcom, &comerr, &status);
1827 if (status.cbInQue > 0) {
1828 s->len = status.cbInQue;
1829 win_chr_read_poll(chr);
1836 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1838 CharDriverState *chr;
1841 chr = g_malloc0(sizeof(CharDriverState));
1842 s = g_malloc0(sizeof(WinCharState));
1844 chr->chr_write = win_chr_write;
1845 chr->chr_close = win_chr_close;
1847 if (win_chr_init(chr, filename) < 0) {
1852 qemu_chr_generic_open(chr);
1856 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1858 return qemu_chr_open_win_path(qemu_opt_get(opts, "path"));
1861 static int win_chr_pipe_poll(void *opaque)
1863 CharDriverState *chr = opaque;
1864 WinCharState *s = chr->opaque;
1867 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1870 win_chr_read_poll(chr);
1877 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1879 WinCharState *s = chr->opaque;
1887 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1889 fprintf(stderr, "Failed CreateEvent\n");
1892 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1894 fprintf(stderr, "Failed CreateEvent\n");
1898 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1899 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1900 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1902 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1903 if (s->hcom == INVALID_HANDLE_VALUE) {
1904 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1909 ZeroMemory(&ov, sizeof(ov));
1910 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1911 ret = ConnectNamedPipe(s->hcom, &ov);
1913 fprintf(stderr, "Failed ConnectNamedPipe\n");
1917 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1919 fprintf(stderr, "Failed GetOverlappedResult\n");
1921 CloseHandle(ov.hEvent);
1928 CloseHandle(ov.hEvent);
1931 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1940 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1942 const char *filename = qemu_opt_get(opts, "path");
1943 CharDriverState *chr;
1946 chr = g_malloc0(sizeof(CharDriverState));
1947 s = g_malloc0(sizeof(WinCharState));
1949 chr->chr_write = win_chr_write;
1950 chr->chr_close = win_chr_close;
1952 if (win_chr_pipe_init(chr, filename) < 0) {
1957 qemu_chr_generic_open(chr);
1961 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1963 CharDriverState *chr;
1966 chr = g_malloc0(sizeof(CharDriverState));
1967 s = g_malloc0(sizeof(WinCharState));
1970 chr->chr_write = win_chr_write;
1971 qemu_chr_generic_open(chr);
1975 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1977 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1980 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1982 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1989 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1999 static void win_stdio_wait_func(void *opaque)
2001 CharDriverState *chr = opaque;
2002 WinStdioCharState *stdio = chr->opaque;
2003 INPUT_RECORD buf[4];
2008 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
2012 /* Avoid error storm */
2013 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
2017 for (i = 0; i < dwSize; i++) {
2018 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2020 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2022 if (kev->uChar.AsciiChar != 0) {
2023 for (j = 0; j < kev->wRepeatCount; j++) {
2024 if (qemu_chr_be_can_write(chr)) {
2025 uint8_t c = kev->uChar.AsciiChar;
2026 qemu_chr_be_write(chr, &c, 1);
2034 static DWORD WINAPI win_stdio_thread(LPVOID param)
2036 CharDriverState *chr = param;
2037 WinStdioCharState *stdio = chr->opaque;
2043 /* Wait for one byte */
2044 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2046 /* Exit in case of error, continue if nothing read */
2054 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2055 if (stdio->win_stdio_buf == '\r') {
2059 /* Signal the main thread and wait until the byte was eaten */
2060 if (!SetEvent(stdio->hInputReadyEvent)) {
2063 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2069 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2073 static void win_stdio_thread_wait_func(void *opaque)
2075 CharDriverState *chr = opaque;
2076 WinStdioCharState *stdio = chr->opaque;
2078 if (qemu_chr_be_can_write(chr)) {
2079 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2082 SetEvent(stdio->hInputDoneEvent);
2085 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2087 WinStdioCharState *stdio = chr->opaque;
2090 GetConsoleMode(stdio->hStdIn, &dwMode);
2093 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2095 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2099 static void win_stdio_close(CharDriverState *chr)
2101 WinStdioCharState *stdio = chr->opaque;
2103 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2104 CloseHandle(stdio->hInputReadyEvent);
2106 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2107 CloseHandle(stdio->hInputDoneEvent);
2109 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2110 TerminateThread(stdio->hInputThread, 0);
2113 g_free(chr->opaque);
2117 static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
2119 CharDriverState *chr;
2120 WinStdioCharState *stdio;
2124 chr = g_malloc0(sizeof(CharDriverState));
2125 stdio = g_malloc0(sizeof(WinStdioCharState));
2127 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2128 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2129 fprintf(stderr, "cannot open stdio: invalid handle\n");
2133 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2135 chr->opaque = stdio;
2136 chr->chr_write = win_stdio_write;
2137 chr->chr_close = win_stdio_close;
2140 if (qemu_add_wait_object(stdio->hStdIn,
2141 win_stdio_wait_func, chr)) {
2142 fprintf(stderr, "qemu_add_wait_object: failed\n");
2147 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2148 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2149 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2152 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2153 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2154 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2155 fprintf(stderr, "cannot create stdio thread or event\n");
2158 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2159 win_stdio_thread_wait_func, chr)) {
2160 fprintf(stderr, "qemu_add_wait_object: failed\n");
2164 dwMode |= ENABLE_LINE_INPUT;
2167 /* set the terminal in raw mode */
2168 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2169 dwMode |= ENABLE_PROCESSED_INPUT;
2172 SetConsoleMode(stdio->hStdIn, dwMode);
2174 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2175 qemu_chr_fe_set_echo(chr, false);
2179 #endif /* !_WIN32 */
2182 /***********************************************************/
2183 /* UDP Net console */
2189 uint8_t buf[READ_BUF_LEN];
2195 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2197 NetCharDriver *s = chr->opaque;
2198 gsize bytes_written;
2201 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2202 if (status == G_IO_STATUS_EOF) {
2204 } else if (status != G_IO_STATUS_NORMAL) {
2208 return bytes_written;
2211 static int udp_chr_read_poll(void *opaque)
2213 CharDriverState *chr = opaque;
2214 NetCharDriver *s = chr->opaque;
2216 s->max_size = qemu_chr_be_can_write(chr);
2218 /* If there were any stray characters in the queue process them
2221 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2222 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2224 s->max_size = qemu_chr_be_can_write(chr);
2229 static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2231 CharDriverState *chr = opaque;
2232 NetCharDriver *s = chr->opaque;
2233 gsize bytes_read = 0;
2236 if (s->max_size == 0)
2238 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2240 s->bufcnt = bytes_read;
2241 s->bufptr = s->bufcnt;
2242 if (status != G_IO_STATUS_NORMAL) {
2247 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2248 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2250 s->max_size = qemu_chr_be_can_write(chr);
2256 static void udp_chr_update_read_handler(CharDriverState *chr)
2258 NetCharDriver *s = chr->opaque;
2261 g_source_remove(s->tag);
2266 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
2270 static void udp_chr_close(CharDriverState *chr)
2272 NetCharDriver *s = chr->opaque;
2274 g_source_remove(s->tag);
2277 g_io_channel_unref(s->chan);
2281 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2284 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2286 CharDriverState *chr = NULL;
2287 NetCharDriver *s = NULL;
2288 Error *local_err = NULL;
2291 chr = g_malloc0(sizeof(CharDriverState));
2292 s = g_malloc0(sizeof(NetCharDriver));
2294 fd = inet_dgram_opts(opts, &local_err);
2300 s->chan = io_channel_from_socket(s->fd);
2304 chr->chr_write = udp_chr_write;
2305 chr->chr_update_read_handler = udp_chr_update_read_handler;
2306 chr->chr_close = udp_chr_close;
2311 qerror_report_err(local_err);
2312 error_free(local_err);
2322 /***********************************************************/
2323 /* TCP Net console */
2327 GIOChannel *chan, *listen_chan;
2328 guint tag, listen_tag;
2338 static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
2340 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2342 TCPCharDriver *s = chr->opaque;
2344 return io_channel_send_all(s->chan, buf, len);
2346 /* XXX: indicate an error ? */
2351 static int tcp_chr_read_poll(void *opaque)
2353 CharDriverState *chr = opaque;
2354 TCPCharDriver *s = chr->opaque;
2357 s->max_size = qemu_chr_be_can_write(chr);
2362 #define IAC_BREAK 243
2363 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2365 uint8_t *buf, int *size)
2367 /* Handle any telnet client's basic IAC options to satisfy char by
2368 * char mode with no echo. All IAC options will be removed from
2369 * the buf and the do_telnetopt variable will be used to track the
2370 * state of the width of the IAC information.
2372 * IAC commands come in sets of 3 bytes with the exception of the
2373 * "IAC BREAK" command and the double IAC.
2379 for (i = 0; i < *size; i++) {
2380 if (s->do_telnetopt > 1) {
2381 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2382 /* Double IAC means send an IAC */
2386 s->do_telnetopt = 1;
2388 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2389 /* Handle IAC break commands by sending a serial break */
2390 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2395 if (s->do_telnetopt >= 4) {
2396 s->do_telnetopt = 1;
2399 if ((unsigned char)buf[i] == IAC) {
2400 s->do_telnetopt = 2;
2411 static int tcp_get_msgfd(CharDriverState *chr)
2413 TCPCharDriver *s = chr->opaque;
2420 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2422 TCPCharDriver *s = chr->opaque;
2423 struct cmsghdr *cmsg;
2425 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2428 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2429 cmsg->cmsg_level != SOL_SOCKET ||
2430 cmsg->cmsg_type != SCM_RIGHTS)
2433 fd = *((int *)CMSG_DATA(cmsg));
2437 #ifndef MSG_CMSG_CLOEXEC
2438 qemu_set_cloexec(fd);
2446 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2448 TCPCharDriver *s = chr->opaque;
2449 struct msghdr msg = { NULL, };
2450 struct iovec iov[1];
2452 struct cmsghdr cmsg;
2453 char control[CMSG_SPACE(sizeof(int))];
2458 iov[0].iov_base = buf;
2459 iov[0].iov_len = len;
2463 msg.msg_control = &msg_control;
2464 msg.msg_controllen = sizeof(msg_control);
2466 #ifdef MSG_CMSG_CLOEXEC
2467 flags |= MSG_CMSG_CLOEXEC;
2469 ret = recvmsg(s->fd, &msg, flags);
2470 if (ret > 0 && s->is_unix) {
2471 unix_process_msgfd(chr, &msg);
2477 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2479 TCPCharDriver *s = chr->opaque;
2480 return qemu_recv(s->fd, buf, len, 0);
2484 static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2486 TCPCharDriver *s = chr->opaque;
2487 return g_io_create_watch(s->chan, cond);
2490 static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2492 CharDriverState *chr = opaque;
2493 TCPCharDriver *s = chr->opaque;
2494 uint8_t buf[READ_BUF_LEN];
2497 if (!s->connected || s->max_size <= 0) {
2501 if (len > s->max_size)
2503 size = tcp_chr_recv(chr, (void *)buf, len);
2505 /* connection closed */
2507 if (s->listen_chan) {
2508 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2510 g_source_remove(s->tag);
2512 g_io_channel_unref(s->chan);
2516 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2517 } else if (size > 0) {
2518 if (s->do_telnetopt)
2519 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2521 qemu_chr_be_write(chr, buf, size);
2528 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2530 return qemu_chr_open_fd(eventfd, eventfd);
2534 static void tcp_chr_connect(void *opaque)
2536 CharDriverState *chr = opaque;
2537 TCPCharDriver *s = chr->opaque;
2541 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
2543 qemu_chr_generic_open(chr);
2546 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2547 static void tcp_chr_telnet_init(int fd)
2550 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2551 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2552 send(fd, (char *)buf, 3, 0);
2553 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2554 send(fd, (char *)buf, 3, 0);
2555 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2556 send(fd, (char *)buf, 3, 0);
2557 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2558 send(fd, (char *)buf, 3, 0);
2561 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2563 TCPCharDriver *s = chr->opaque;
2567 socket_set_nonblock(fd);
2569 socket_set_nodelay(fd);
2571 s->chan = io_channel_from_socket(fd);
2572 g_source_remove(s->listen_tag);
2574 tcp_chr_connect(chr);
2579 static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
2581 CharDriverState *chr = opaque;
2582 TCPCharDriver *s = chr->opaque;
2583 struct sockaddr_in saddr;
2585 struct sockaddr_un uaddr;
2587 struct sockaddr *addr;
2594 len = sizeof(uaddr);
2595 addr = (struct sockaddr *)&uaddr;
2599 len = sizeof(saddr);
2600 addr = (struct sockaddr *)&saddr;
2602 fd = qemu_accept(s->listen_fd, addr, &len);
2603 if (fd < 0 && errno != EINTR) {
2605 } else if (fd >= 0) {
2606 if (s->do_telnetopt)
2607 tcp_chr_telnet_init(fd);
2611 if (tcp_chr_add_client(chr, fd) < 0)
2617 static void tcp_chr_close(CharDriverState *chr)
2619 TCPCharDriver *s = chr->opaque;
2622 g_source_remove(s->tag);
2625 g_io_channel_unref(s->chan);
2629 if (s->listen_fd >= 0) {
2630 if (s->listen_tag) {
2631 g_source_remove(s->listen_tag);
2633 if (s->listen_chan) {
2634 g_io_channel_unref(s->listen_chan);
2636 closesocket(s->listen_fd);
2639 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2642 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2643 bool is_listen, bool is_telnet,
2644 bool is_waitconnect,
2647 CharDriverState *chr = NULL;
2648 TCPCharDriver *s = NULL;
2649 char host[NI_MAXHOST], serv[NI_MAXSERV];
2650 const char *left = "", *right = "";
2651 struct sockaddr_storage ss;
2652 socklen_t ss_len = sizeof(ss);
2654 memset(&ss, 0, ss_len);
2655 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2656 error_setg(errp, "getsockname: %s", strerror(errno));
2660 chr = g_malloc0(sizeof(CharDriverState));
2661 s = g_malloc0(sizeof(TCPCharDriver));
2668 chr->filename = g_malloc(256);
2669 switch (ss.ss_family) {
2673 snprintf(chr->filename, 256, "unix:%s%s",
2674 ((struct sockaddr_un *)(&ss))->sun_path,
2675 is_listen ? ",server" : "");
2683 s->do_nodelay = do_nodelay;
2684 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2685 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2686 snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
2687 is_telnet ? "telnet" : "tcp",
2688 left, host, right, serv,
2689 is_listen ? ",server" : "");
2694 chr->chr_write = tcp_chr_write;
2695 chr->chr_close = tcp_chr_close;
2696 chr->get_msgfd = tcp_get_msgfd;
2697 chr->chr_add_client = tcp_chr_add_client;
2698 chr->chr_add_watch = tcp_chr_add_watch;
2702 s->listen_chan = io_channel_from_socket(s->listen_fd);
2703 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2705 s->do_telnetopt = 1;
2710 socket_set_nodelay(fd);
2711 s->chan = io_channel_from_socket(s->fd);
2712 tcp_chr_connect(chr);
2715 if (is_listen && is_waitconnect) {
2716 printf("QEMU waiting for connection on: %s\n",
2718 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
2719 socket_set_nonblock(s->listen_fd);
2724 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2726 CharDriverState *chr = NULL;
2727 Error *local_err = NULL;
2735 is_listen = qemu_opt_get_bool(opts, "server", 0);
2736 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2737 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2738 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2739 is_unix = qemu_opt_get(opts, "path") != NULL;
2745 fd = unix_listen_opts(opts, &local_err);
2747 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2751 fd = inet_listen_opts(opts, 0, &local_err);
2753 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2760 if (!is_waitconnect)
2761 socket_set_nonblock(fd);
2763 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2764 is_waitconnect, &local_err);
2765 if (error_is_set(&local_err)) {
2773 qerror_report_err(local_err);
2774 error_free(local_err);
2780 g_free(chr->opaque);
2786 /***********************************************************/
2787 /* Memory chardev */
2790 size_t outbuf_capacity;
2794 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2796 MemoryDriver *d = chr->opaque;
2798 /* TODO: the QString implementation has the same code, we should
2799 * introduce a generic way to do this in cutils.c */
2800 if (d->outbuf_capacity < d->outbuf_size + len) {
2802 d->outbuf_capacity += len;
2803 d->outbuf_capacity *= 2;
2804 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2807 memcpy(d->outbuf + d->outbuf_size, buf, len);
2808 d->outbuf_size += len;
2813 void qemu_chr_init_mem(CharDriverState *chr)
2817 d = g_malloc(sizeof(*d));
2819 d->outbuf_capacity = 4096;
2820 d->outbuf = g_malloc0(d->outbuf_capacity);
2822 memset(chr, 0, sizeof(*chr));
2824 chr->chr_write = mem_chr_write;
2827 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2829 MemoryDriver *d = chr->opaque;
2830 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2833 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2834 void qemu_chr_close_mem(CharDriverState *chr)
2836 MemoryDriver *d = chr->opaque;
2839 g_free(chr->opaque);
2841 chr->chr_write = NULL;
2844 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2846 const MemoryDriver *d = chr->opaque;
2847 return d->outbuf_size;
2850 /*********************************************************/
2851 /* Ring buffer chardev */
2858 } RingBufCharDriver;
2860 static size_t ringbuf_count(const CharDriverState *chr)
2862 const RingBufCharDriver *d = chr->opaque;
2864 return d->prod - d->cons;
2867 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2869 RingBufCharDriver *d = chr->opaque;
2872 if (!buf || (len < 0)) {
2876 for (i = 0; i < len; i++ ) {
2877 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2878 if (d->prod - d->cons > d->size) {
2879 d->cons = d->prod - d->size;
2886 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2888 RingBufCharDriver *d = chr->opaque;
2891 for (i = 0; i < len && d->cons != d->prod; i++) {
2892 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2898 static void ringbuf_chr_close(struct CharDriverState *chr)
2900 RingBufCharDriver *d = chr->opaque;
2907 static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
2909 CharDriverState *chr;
2910 RingBufCharDriver *d;
2912 chr = g_malloc0(sizeof(CharDriverState));
2913 d = g_malloc(sizeof(*d));
2915 d->size = qemu_opt_get_size(opts, "size", 0);
2920 /* The size must be power of 2 */
2921 if (d->size & (d->size - 1)) {
2922 error_report("size of ringbuf device must be power of two");
2928 d->cbuf = g_malloc0(d->size);
2931 chr->chr_write = ringbuf_chr_write;
2932 chr->chr_close = ringbuf_chr_close;
2942 static bool chr_is_ringbuf(const CharDriverState *chr)
2944 return chr->chr_write == ringbuf_chr_write;
2947 void qmp_ringbuf_write(const char *device, const char *data,
2948 bool has_format, enum DataFormat format,
2951 CharDriverState *chr;
2952 const uint8_t *write_data;
2956 chr = qemu_chr_find(device);
2958 error_setg(errp, "Device '%s' not found", device);
2962 if (!chr_is_ringbuf(chr)) {
2963 error_setg(errp,"%s is not a ringbuf device", device);
2967 if (has_format && (format == DATA_FORMAT_BASE64)) {
2968 write_data = g_base64_decode(data, &write_count);
2970 write_data = (uint8_t *)data;
2971 write_count = strlen(data);
2974 ret = ringbuf_chr_write(chr, write_data, write_count);
2976 if (write_data != (uint8_t *)data) {
2977 g_free((void *)write_data);
2981 error_setg(errp, "Failed to write to device %s", device);
2986 char *qmp_ringbuf_read(const char *device, int64_t size,
2987 bool has_format, enum DataFormat format,
2990 CharDriverState *chr;
2995 chr = qemu_chr_find(device);
2997 error_setg(errp, "Device '%s' not found", device);
3001 if (!chr_is_ringbuf(chr)) {
3002 error_setg(errp,"%s is not a ringbuf device", device);
3007 error_setg(errp, "size must be greater than zero");
3011 count = ringbuf_count(chr);
3012 size = size > count ? count : size;
3013 read_data = g_malloc(size + 1);
3015 ringbuf_chr_read(chr, read_data, size);
3017 if (has_format && (format == DATA_FORMAT_BASE64)) {
3018 data = g_base64_encode(read_data, size);
3022 * FIXME should read only complete, valid UTF-8 characters up
3023 * to @size bytes. Invalid sequences should be replaced by a
3024 * suitable replacement character. Except when (and only
3025 * when) ring buffer lost characters since last read, initial
3026 * continuation characters should be dropped.
3028 read_data[size] = 0;
3029 data = (char *)read_data;
3035 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
3037 char host[65], port[33], width[8], height[8];
3041 Error *local_err = NULL;
3043 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
3044 if (error_is_set(&local_err)) {
3045 qerror_report_err(local_err);
3046 error_free(local_err);
3050 if (strstart(filename, "mon:", &p)) {
3052 qemu_opt_set(opts, "mux", "on");
3055 if (strcmp(filename, "null") == 0 ||
3056 strcmp(filename, "pty") == 0 ||
3057 strcmp(filename, "msmouse") == 0 ||
3058 strcmp(filename, "braille") == 0 ||
3059 strcmp(filename, "stdio") == 0) {
3060 qemu_opt_set(opts, "backend", filename);
3063 if (strstart(filename, "vc", &p)) {
3064 qemu_opt_set(opts, "backend", "vc");
3066 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3068 qemu_opt_set(opts, "width", width);
3069 qemu_opt_set(opts, "height", height);
3070 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3072 qemu_opt_set(opts, "cols", width);
3073 qemu_opt_set(opts, "rows", height);
3080 if (strcmp(filename, "con:") == 0) {
3081 qemu_opt_set(opts, "backend", "console");
3084 if (strstart(filename, "COM", NULL)) {
3085 qemu_opt_set(opts, "backend", "serial");
3086 qemu_opt_set(opts, "path", filename);
3089 if (strstart(filename, "file:", &p)) {
3090 qemu_opt_set(opts, "backend", "file");
3091 qemu_opt_set(opts, "path", p);
3094 if (strstart(filename, "pipe:", &p)) {
3095 qemu_opt_set(opts, "backend", "pipe");
3096 qemu_opt_set(opts, "path", p);
3099 if (strstart(filename, "tcp:", &p) ||
3100 strstart(filename, "telnet:", &p)) {
3101 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3103 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3106 qemu_opt_set(opts, "backend", "socket");
3107 qemu_opt_set(opts, "host", host);
3108 qemu_opt_set(opts, "port", port);
3109 if (p[pos] == ',') {
3110 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3113 if (strstart(filename, "telnet:", &p))
3114 qemu_opt_set(opts, "telnet", "on");
3117 if (strstart(filename, "udp:", &p)) {
3118 qemu_opt_set(opts, "backend", "udp");
3119 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3121 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3125 qemu_opt_set(opts, "host", host);
3126 qemu_opt_set(opts, "port", port);
3127 if (p[pos] == '@') {
3129 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3131 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3135 qemu_opt_set(opts, "localaddr", host);
3136 qemu_opt_set(opts, "localport", port);
3140 if (strstart(filename, "unix:", &p)) {
3141 qemu_opt_set(opts, "backend", "socket");
3142 if (qemu_opts_do_parse(opts, p, "path") != 0)
3146 if (strstart(filename, "/dev/parport", NULL) ||
3147 strstart(filename, "/dev/ppi", NULL)) {
3148 qemu_opt_set(opts, "backend", "parport");
3149 qemu_opt_set(opts, "path", filename);
3152 if (strstart(filename, "/dev/", NULL)) {
3153 qemu_opt_set(opts, "backend", "tty");
3154 qemu_opt_set(opts, "path", filename);
3159 qemu_opts_del(opts);
3163 #ifdef HAVE_CHARDEV_PARPORT
3165 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
3167 const char *filename = qemu_opt_get(opts, "path");
3170 fd = qemu_open(filename, O_RDWR);
3174 return qemu_chr_open_pp_fd(fd);
3179 static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3182 const char *path = qemu_opt_get(opts, "path");
3185 error_setg(errp, "chardev: file: no filename given");
3188 backend->file = g_new0(ChardevFile, 1);
3189 backend->file->out = g_strdup(path);
3192 typedef struct CharDriver {
3195 CharDriverState *(*open)(QemuOpts *opts);
3196 /* new, qapi-based */
3198 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
3201 static GSList *backends;
3203 void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3207 s = g_malloc0(sizeof(*s));
3208 s->name = g_strdup(name);
3211 backends = g_slist_append(backends, s);
3214 void register_char_driver_qapi(const char *name, int kind,
3215 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3219 s = g_malloc0(sizeof(*s));
3220 s->name = g_strdup(name);
3224 backends = g_slist_append(backends, s);
3227 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3228 void (*init)(struct CharDriverState *s),
3232 CharDriverState *chr;
3235 if (qemu_opts_id(opts) == NULL) {
3236 error_setg(errp, "chardev: no id specified");
3240 if (qemu_opt_get(opts, "backend") == NULL) {
3241 error_setg(errp, "chardev: \"%s\" missing backend",
3242 qemu_opts_id(opts));
3245 for (i = backends; i; i = i->next) {
3248 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
3253 error_setg(errp, "chardev: backend \"%s\" not found",
3254 qemu_opt_get(opts, "backend"));
3259 /* using new, qapi init */
3260 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3261 ChardevReturn *ret = NULL;
3262 const char *id = qemu_opts_id(opts);
3263 const char *bid = NULL;
3265 if (qemu_opt_get_bool(opts, "mux", 0)) {
3266 bid = g_strdup_printf("%s-base", id);
3270 backend->kind = cd->kind;
3272 cd->parse(opts, backend, errp);
3273 if (error_is_set(errp)) {
3277 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
3278 if (error_is_set(errp)) {
3283 qapi_free_ChardevBackend(backend);
3284 qapi_free_ChardevReturn(ret);
3285 backend = g_new0(ChardevBackend, 1);
3286 backend->mux = g_new0(ChardevMux, 1);
3287 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3288 backend->mux->chardev = g_strdup(bid);
3289 ret = qmp_chardev_add(id, backend, errp);
3290 if (error_is_set(errp)) {
3295 chr = qemu_chr_find(id);
3298 qapi_free_ChardevBackend(backend);
3299 qapi_free_ChardevReturn(ret);
3303 chr = cd->open(opts);
3305 error_setg(errp, "chardev: opening backend \"%s\" failed",
3306 qemu_opt_get(opts, "backend"));
3311 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3313 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3315 if (qemu_opt_get_bool(opts, "mux", 0)) {
3316 CharDriverState *base = chr;
3317 int len = strlen(qemu_opts_id(opts)) + 6;
3318 base->label = g_malloc(len);
3319 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3320 chr = qemu_chr_open_mux(base);
3321 chr->filename = base->filename;
3322 chr->avail_connections = MAX_MUX;
3323 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3325 chr->avail_connections = 1;
3327 chr->label = g_strdup(qemu_opts_id(opts));
3332 qemu_opts_del(opts);
3336 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3339 CharDriverState *chr;
3343 if (strstart(filename, "chardev:", &p)) {
3344 return qemu_chr_find(p);
3347 opts = qemu_chr_parse_compat(label, filename);
3351 chr = qemu_chr_new_from_opts(opts, init, &err);
3352 if (error_is_set(&err)) {
3353 fprintf(stderr, "%s\n", error_get_pretty(err));
3356 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3357 monitor_init(chr, MONITOR_USE_READLINE);
3362 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3364 if (chr->chr_set_echo) {
3365 chr->chr_set_echo(chr, echo);
3369 void qemu_chr_fe_open(struct CharDriverState *chr)
3371 if (chr->chr_guest_open) {
3372 chr->chr_guest_open(chr);
3376 void qemu_chr_fe_close(struct CharDriverState *chr)
3378 if (chr->chr_guest_close) {
3379 chr->chr_guest_close(chr);
3383 guint qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3384 GIOFunc func, void *user_data)
3389 if (s->chr_add_watch == NULL) {
3393 src = s->chr_add_watch(s, cond);
3394 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3395 tag = g_source_attach(src, NULL);
3396 g_source_unref(src);
3401 void qemu_chr_delete(CharDriverState *chr)
3403 QTAILQ_REMOVE(&chardevs, chr, next);
3404 if (chr->chr_close) {
3405 chr->chr_close(chr);
3407 g_free(chr->filename);
3410 qemu_opts_del(chr->opts);
3415 ChardevInfoList *qmp_query_chardev(Error **errp)
3417 ChardevInfoList *chr_list = NULL;
3418 CharDriverState *chr;
3420 QTAILQ_FOREACH(chr, &chardevs, next) {
3421 ChardevInfoList *info = g_malloc0(sizeof(*info));
3422 info->value = g_malloc0(sizeof(*info->value));
3423 info->value->label = g_strdup(chr->label);
3424 info->value->filename = g_strdup(chr->filename);
3426 info->next = chr_list;
3433 CharDriverState *qemu_chr_find(const char *name)
3435 CharDriverState *chr;
3437 QTAILQ_FOREACH(chr, &chardevs, next) {
3438 if (strcmp(chr->label, name) != 0)
3445 /* Get a character (serial) device interface. */
3446 CharDriverState *qemu_char_get_next_serial(void)
3448 static int next_serial;
3450 /* FIXME: This function needs to go away: use chardev properties! */
3451 return serial_hds[next_serial++];
3454 QemuOptsList qemu_chardev_opts = {
3456 .implied_opt_name = "backend",
3457 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3461 .type = QEMU_OPT_STRING,
3464 .type = QEMU_OPT_STRING,
3467 .type = QEMU_OPT_STRING,
3470 .type = QEMU_OPT_STRING,
3472 .name = "localaddr",
3473 .type = QEMU_OPT_STRING,
3475 .name = "localport",
3476 .type = QEMU_OPT_STRING,
3479 .type = QEMU_OPT_NUMBER,
3482 .type = QEMU_OPT_BOOL,
3485 .type = QEMU_OPT_BOOL,
3488 .type = QEMU_OPT_BOOL,
3491 .type = QEMU_OPT_BOOL,
3494 .type = QEMU_OPT_BOOL,
3497 .type = QEMU_OPT_BOOL,
3500 .type = QEMU_OPT_NUMBER,
3503 .type = QEMU_OPT_NUMBER,
3506 .type = QEMU_OPT_NUMBER,
3509 .type = QEMU_OPT_NUMBER,
3512 .type = QEMU_OPT_BOOL,
3515 .type = QEMU_OPT_BOOL,
3518 .type = QEMU_OPT_STRING,
3521 .type = QEMU_OPT_NUMBER,
3524 .type = QEMU_OPT_SIZE,
3526 { /* end of list */ }
3532 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3537 error_setg(errp, "input file not supported");
3541 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3542 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3543 if (out == INVALID_HANDLE_VALUE) {
3544 error_setg(errp, "open %s failed", file->out);
3547 return qemu_chr_open_win_file(out);
3550 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3553 return qemu_chr_open_win_path(serial->device);
3556 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3559 error_setg(errp, "character device backend type 'parallel' not supported");
3565 static int qmp_chardev_open_file_source(char *src, int flags,
3570 TFR(fd = qemu_open(src, flags, 0666));
3572 error_setg(errp, "open %s: %s", src, strerror(errno));
3577 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3579 int flags, in = -1, out = -1;
3581 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3582 out = qmp_chardev_open_file_source(file->out, flags, errp);
3583 if (error_is_set(errp)) {
3589 in = qmp_chardev_open_file_source(file->in, flags, errp);
3590 if (error_is_set(errp)) {
3596 return qemu_chr_open_fd(in, out);
3599 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3602 #ifdef HAVE_CHARDEV_TTY
3605 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3606 if (error_is_set(errp)) {
3609 socket_set_nonblock(fd);
3610 return qemu_chr_open_tty_fd(fd);
3612 error_setg(errp, "character device backend type 'serial' not supported");
3617 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3620 #ifdef HAVE_CHARDEV_PARPORT
3623 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3624 if (error_is_set(errp)) {
3627 return qemu_chr_open_pp_fd(fd);
3629 error_setg(errp, "character device backend type 'parallel' not supported");
3636 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3639 SocketAddress *addr = sock->addr;
3640 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3641 bool is_listen = sock->has_server ? sock->server : true;
3642 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3643 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3647 fd = socket_listen(addr, errp);
3649 fd = socket_connect(addr, errp, NULL, NULL);
3651 if (error_is_set(errp)) {
3654 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3655 is_telnet, is_waitconnect, errp);
3658 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3661 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3662 CharDriverState *base, *chr = NULL;
3664 chr = qemu_chr_find(id);
3666 error_setg(errp, "Chardev '%s' already exists", id);
3671 switch (backend->kind) {
3672 case CHARDEV_BACKEND_KIND_FILE:
3673 chr = qmp_chardev_open_file(backend->file, errp);
3675 case CHARDEV_BACKEND_KIND_SERIAL:
3676 chr = qmp_chardev_open_serial(backend->serial, errp);
3678 case CHARDEV_BACKEND_KIND_PARALLEL:
3679 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3681 case CHARDEV_BACKEND_KIND_SOCKET:
3682 chr = qmp_chardev_open_socket(backend->socket, errp);
3684 #ifdef HAVE_CHARDEV_TTY
3685 case CHARDEV_BACKEND_KIND_PTY:
3687 /* qemu_chr_open_pty sets "path" in opts */
3689 opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
3690 chr = qemu_chr_open_pty(opts);
3691 ret->pty = g_strdup(qemu_opt_get(opts, "path"));
3692 ret->has_pty = true;
3693 qemu_opts_del(opts);
3697 case CHARDEV_BACKEND_KIND_NULL:
3698 chr = qemu_chr_open_null();
3700 case CHARDEV_BACKEND_KIND_MUX:
3701 base = qemu_chr_find(backend->mux->chardev);
3703 error_setg(errp, "mux: base chardev %s not found",
3704 backend->mux->chardev);
3707 chr = qemu_chr_open_mux(base);
3709 case CHARDEV_BACKEND_KIND_MSMOUSE:
3710 chr = qemu_chr_open_msmouse();
3712 #ifdef CONFIG_BRLAPI
3713 case CHARDEV_BACKEND_KIND_BRAILLE:
3714 chr = chr_baum_init();
3718 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3722 if (chr == NULL && !error_is_set(errp)) {
3723 error_setg(errp, "Failed to create chardev");
3726 chr->label = g_strdup(id);
3727 chr->avail_connections =
3728 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
3729 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3737 void qmp_chardev_remove(const char *id, Error **errp)
3739 CharDriverState *chr;
3741 chr = qemu_chr_find(id);
3743 error_setg(errp, "Chardev '%s' not found", id);
3746 if (chr->chr_can_read || chr->chr_read ||
3747 chr->chr_event || chr->handler_opaque) {
3748 error_setg(errp, "Chardev '%s' is busy", id);
3751 qemu_chr_delete(chr);
3754 static void register_types(void)
3756 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
3757 register_char_driver("socket", qemu_chr_open_socket);
3758 register_char_driver("udp", qemu_chr_open_udp);
3759 register_char_driver("memory", qemu_chr_open_ringbuf);
3760 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3761 qemu_chr_parse_file_out);
3763 register_char_driver("pipe", qemu_chr_open_win_pipe);
3764 register_char_driver("console", qemu_chr_open_win_con);
3765 register_char_driver("serial", qemu_chr_open_win);
3766 register_char_driver("stdio", qemu_chr_open_win_stdio);
3768 register_char_driver("pipe", qemu_chr_open_pipe);
3769 register_char_driver("stdio", qemu_chr_open_stdio);
3771 #ifdef HAVE_CHARDEV_TTY
3772 register_char_driver("tty", qemu_chr_open_tty);
3773 register_char_driver("serial", qemu_chr_open_tty);
3774 register_char_driver("pty", qemu_chr_open_pty);
3776 #ifdef HAVE_CHARDEV_PARPORT
3777 register_char_driver("parallel", qemu_chr_open_pp);
3778 register_char_driver("parport", qemu_chr_open_pp);
3782 type_init(register_types);