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"
32 #include "hw/msmouse.h"
33 #include "qmp-commands.h"
43 #include <sys/times.h>
47 #include <sys/ioctl.h>
48 #include <sys/resource.h>
49 #include <sys/socket.h>
50 #include <netinet/in.h>
52 #include <arpa/inet.h>
55 #include <sys/select.h>
58 #if defined(__GLIBC__)
60 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
65 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
66 #include <dev/ppbus/ppi.h>
67 #include <dev/ppbus/ppbconf.h>
68 #elif defined(__DragonFly__)
69 #include <dev/misc/ppi/ppi.h>
70 #include <bus/ppbus/ppbconf.h>
76 #include <linux/ppdev.h>
77 #include <linux/parport.h>
81 #include <sys/ethernet.h>
82 #include <sys/sockio.h>
83 #include <netinet/arp.h>
84 #include <netinet/in.h>
85 #include <netinet/in_systm.h>
86 #include <netinet/ip.h>
87 #include <netinet/ip_icmp.h> // must come after ip.h
88 #include <netinet/udp.h>
89 #include <netinet/tcp.h>
97 #include "qemu/sockets.h"
98 #include "ui/qemu-spice.h"
100 #define READ_BUF_LEN 4096
102 /***********************************************************/
103 /* character device */
105 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
106 QTAILQ_HEAD_INITIALIZER(chardevs);
108 void qemu_chr_be_event(CharDriverState *s, int event)
110 /* Keep track if the char device is open */
112 case CHR_EVENT_OPENED:
115 case CHR_EVENT_CLOSED:
122 s->chr_event(s->handler_opaque, event);
125 static void qemu_chr_fire_open_event(void *opaque)
127 CharDriverState *s = opaque;
128 qemu_chr_be_event(s, CHR_EVENT_OPENED);
129 qemu_free_timer(s->open_timer);
130 s->open_timer = NULL;
133 void qemu_chr_generic_open(CharDriverState *s)
135 if (s->open_timer == NULL) {
136 s->open_timer = qemu_new_timer_ms(rt_clock,
137 qemu_chr_fire_open_event, s);
138 qemu_mod_timer(s->open_timer, qemu_get_clock_ms(rt_clock) - 1);
142 int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
144 return s->chr_write(s, buf, len);
147 int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
151 return s->chr_ioctl(s, cmd, arg);
154 int qemu_chr_be_can_write(CharDriverState *s)
156 if (!s->chr_can_read)
158 return s->chr_can_read(s->handler_opaque);
161 void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
164 s->chr_read(s->handler_opaque, buf, len);
168 int qemu_chr_fe_get_msgfd(CharDriverState *s)
170 return s->get_msgfd ? s->get_msgfd(s) : -1;
173 int qemu_chr_add_client(CharDriverState *s, int fd)
175 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
178 void qemu_chr_accept_input(CharDriverState *s)
180 if (s->chr_accept_input)
181 s->chr_accept_input(s);
185 void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
187 char buf[READ_BUF_LEN];
190 vsnprintf(buf, sizeof(buf), fmt, ap);
191 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
195 void qemu_chr_add_handlers(CharDriverState *s,
196 IOCanReadHandler *fd_can_read,
197 IOReadHandler *fd_read,
198 IOEventHandler *fd_event,
201 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
202 /* chr driver being released. */
203 ++s->avail_connections;
205 s->chr_can_read = fd_can_read;
206 s->chr_read = fd_read;
207 s->chr_event = fd_event;
208 s->handler_opaque = opaque;
209 if (s->chr_update_read_handler)
210 s->chr_update_read_handler(s);
212 /* We're connecting to an already opened device, so let's make sure we
213 also get the open event */
215 qemu_chr_generic_open(s);
219 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
224 static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
226 CharDriverState *chr;
228 chr = g_malloc0(sizeof(CharDriverState));
229 chr->chr_write = null_chr_write;
233 /* MUX driver for serial I/O splitting */
235 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
236 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
238 IOCanReadHandler *chr_can_read[MAX_MUX];
239 IOReadHandler *chr_read[MAX_MUX];
240 IOEventHandler *chr_event[MAX_MUX];
241 void *ext_opaque[MAX_MUX];
242 CharDriverState *drv;
247 /* Intermediate input buffer allows to catch escape sequences even if the
248 currently active device is not accepting any input - but only until it
250 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
255 int64_t timestamps_start;
259 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
261 MuxDriver *d = chr->opaque;
263 if (!d->timestamps) {
264 ret = d->drv->chr_write(d->drv, buf, len);
269 for (i = 0; i < len; i++) {
275 ti = qemu_get_clock_ms(rt_clock);
276 if (d->timestamps_start == -1)
277 d->timestamps_start = ti;
278 ti -= d->timestamps_start;
280 snprintf(buf1, sizeof(buf1),
281 "[%02d:%02d:%02d.%03d] ",
286 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
289 ret += d->drv->chr_write(d->drv, buf+i, 1);
290 if (buf[i] == '\n') {
298 static const char * const mux_help[] = {
299 "% h print this help\n\r",
300 "% x exit emulator\n\r",
301 "% s save disk data back to file (if -snapshot)\n\r",
302 "% t toggle console timestamps\n\r"
303 "% b send break (magic sysrq)\n\r",
304 "% c switch between console and monitor\n\r",
309 int term_escape_char = 0x01; /* ctrl-a is used for escape */
310 static void mux_print_help(CharDriverState *chr)
313 char ebuf[15] = "Escape-Char";
314 char cbuf[50] = "\n\r";
316 if (term_escape_char > 0 && term_escape_char < 26) {
317 snprintf(cbuf, sizeof(cbuf), "\n\r");
318 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
320 snprintf(cbuf, sizeof(cbuf),
321 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
324 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
325 for (i = 0; mux_help[i] != NULL; i++) {
326 for (j=0; mux_help[i][j] != '\0'; j++) {
327 if (mux_help[i][j] == '%')
328 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
330 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
335 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
337 if (d->chr_event[mux_nr])
338 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
341 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
343 if (d->term_got_escape) {
344 d->term_got_escape = 0;
345 if (ch == term_escape_char)
354 const char *term = "QEMU: Terminated\n\r";
355 chr->chr_write(chr,(uint8_t *)term,strlen(term));
363 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
366 /* Switch to the next registered device */
367 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
369 if (d->focus >= d->mux_cnt)
371 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
374 d->timestamps = !d->timestamps;
375 d->timestamps_start = -1;
379 } else if (ch == term_escape_char) {
380 d->term_got_escape = 1;
388 static void mux_chr_accept_input(CharDriverState *chr)
390 MuxDriver *d = chr->opaque;
393 while (d->prod[m] != d->cons[m] &&
394 d->chr_can_read[m] &&
395 d->chr_can_read[m](d->ext_opaque[m])) {
396 d->chr_read[m](d->ext_opaque[m],
397 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
401 static int mux_chr_can_read(void *opaque)
403 CharDriverState *chr = opaque;
404 MuxDriver *d = chr->opaque;
407 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
409 if (d->chr_can_read[m])
410 return d->chr_can_read[m](d->ext_opaque[m]);
414 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
416 CharDriverState *chr = opaque;
417 MuxDriver *d = chr->opaque;
421 mux_chr_accept_input (opaque);
423 for(i = 0; i < size; i++)
424 if (mux_proc_byte(chr, d, buf[i])) {
425 if (d->prod[m] == d->cons[m] &&
426 d->chr_can_read[m] &&
427 d->chr_can_read[m](d->ext_opaque[m]))
428 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
430 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
434 static void mux_chr_event(void *opaque, int event)
436 CharDriverState *chr = opaque;
437 MuxDriver *d = chr->opaque;
440 /* Send the event to all registered listeners */
441 for (i = 0; i < d->mux_cnt; i++)
442 mux_chr_send_event(d, i, event);
445 static void mux_chr_update_read_handler(CharDriverState *chr)
447 MuxDriver *d = chr->opaque;
449 if (d->mux_cnt >= MAX_MUX) {
450 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
453 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
454 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
455 d->chr_read[d->mux_cnt] = chr->chr_read;
456 d->chr_event[d->mux_cnt] = chr->chr_event;
457 /* Fix up the real driver with mux routines */
458 if (d->mux_cnt == 0) {
459 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
462 if (d->focus != -1) {
463 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
465 d->focus = d->mux_cnt;
467 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
470 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
472 CharDriverState *chr;
475 chr = g_malloc0(sizeof(CharDriverState));
476 d = g_malloc0(sizeof(MuxDriver));
481 chr->chr_write = mux_chr_write;
482 chr->chr_update_read_handler = mux_chr_update_read_handler;
483 chr->chr_accept_input = mux_chr_accept_input;
484 /* Frontend guest-open / -close notification is not support with muxes */
485 chr->chr_guest_open = NULL;
486 chr->chr_guest_close = NULL;
488 /* Muxes are always open on creation */
489 qemu_chr_generic_open(chr);
496 int send_all(int fd, const void *buf, int len1)
502 ret = send(fd, buf, len, 0);
504 errno = WSAGetLastError();
505 if (errno != WSAEWOULDBLOCK) {
508 } else if (ret == 0) {
520 int send_all(int fd, const void *_buf, int len1)
523 const uint8_t *buf = _buf;
527 ret = write(fd, buf, len);
529 if (errno != EINTR && errno != EAGAIN)
531 } else if (ret == 0) {
545 typedef struct IOWatchPoll
550 IOCanReadHandler *fd_can_read;
553 QTAILQ_ENTRY(IOWatchPoll) node;
556 static QTAILQ_HEAD(, IOWatchPoll) io_watch_poll_list =
557 QTAILQ_HEAD_INITIALIZER(io_watch_poll_list);
559 static IOWatchPoll *io_watch_poll_from_source(GSource *source)
563 QTAILQ_FOREACH(i, &io_watch_poll_list, node) {
564 if (i->src == source) {
572 static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
574 IOWatchPoll *iwp = io_watch_poll_from_source(source);
576 iwp->max_size = iwp->fd_can_read(iwp->opaque);
577 if (iwp->max_size == 0) {
581 return g_io_watch_funcs.prepare(source, timeout_);
584 static gboolean io_watch_poll_check(GSource *source)
586 IOWatchPoll *iwp = io_watch_poll_from_source(source);
588 if (iwp->max_size == 0) {
592 return g_io_watch_funcs.check(source);
595 static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
598 return g_io_watch_funcs.dispatch(source, callback, user_data);
601 static void io_watch_poll_finalize(GSource *source)
603 IOWatchPoll *iwp = io_watch_poll_from_source(source);
604 QTAILQ_REMOVE(&io_watch_poll_list, iwp, node);
605 g_io_watch_funcs.finalize(source);
608 static GSourceFuncs io_watch_poll_funcs = {
609 .prepare = io_watch_poll_prepare,
610 .check = io_watch_poll_check,
611 .dispatch = io_watch_poll_dispatch,
612 .finalize = io_watch_poll_finalize,
615 /* Can only be used for read */
616 static guint io_add_watch_poll(GIOChannel *channel,
617 IOCanReadHandler *fd_can_read,
625 src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
626 g_source_set_funcs(src, &io_watch_poll_funcs);
627 g_source_set_callback(src, (GSourceFunc)fd_read, user_data, NULL);
628 tag = g_source_attach(src, NULL);
631 iwp = g_malloc0(sizeof(*iwp));
634 iwp->fd_can_read = fd_can_read;
635 iwp->opaque = user_data;
637 QTAILQ_INSERT_HEAD(&io_watch_poll_list, iwp, node);
642 static GIOChannel *io_channel_from_fd(int fd)
650 chan = g_io_channel_unix_new(fd);
652 g_io_channel_set_encoding(chan, NULL, NULL);
653 g_io_channel_set_buffered(chan, FALSE);
658 static int io_channel_send_all(GIOChannel *fd, const void *_buf, int len1)
663 const uint8_t *buf = _buf;
667 status = g_io_channel_write_chars(fd, (const gchar *)buf, len,
668 &bytes_written, NULL);
669 if (status != G_IO_STATUS_NORMAL) {
670 if (status != G_IO_STATUS_AGAIN) {
673 } else if (status == G_IO_STATUS_EOF) {
676 buf += bytes_written;
677 len -= bytes_written;
690 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
692 FDCharDriver *s = chr->opaque;
693 return send_all(s->fd_out, buf, len);
696 static int fd_chr_read_poll(void *opaque)
698 CharDriverState *chr = opaque;
699 FDCharDriver *s = chr->opaque;
701 s->max_size = qemu_chr_be_can_write(chr);
705 static void fd_chr_read(void *opaque)
707 CharDriverState *chr = opaque;
708 FDCharDriver *s = chr->opaque;
710 uint8_t buf[READ_BUF_LEN];
713 if (len > s->max_size)
717 size = read(s->fd_in, buf, len);
719 /* FD has been closed. Remove it from the active list. */
720 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
721 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
725 qemu_chr_be_write(chr, buf, size);
729 static void fd_chr_update_read_handler(CharDriverState *chr)
731 FDCharDriver *s = chr->opaque;
734 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
735 fd_chr_read, NULL, chr);
739 static void fd_chr_close(struct CharDriverState *chr)
741 FDCharDriver *s = chr->opaque;
744 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
748 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
751 /* open a character device to a unix fd */
752 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
754 CharDriverState *chr;
757 chr = g_malloc0(sizeof(CharDriverState));
758 s = g_malloc0(sizeof(FDCharDriver));
762 chr->chr_write = fd_chr_write;
763 chr->chr_update_read_handler = fd_chr_update_read_handler;
764 chr->chr_close = fd_chr_close;
766 qemu_chr_generic_open(chr);
771 static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
775 TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
776 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
780 return qemu_chr_open_fd(-1, fd_out);
783 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
786 char filename_in[256], filename_out[256];
787 const char *filename = qemu_opt_get(opts, "path");
789 if (filename == NULL) {
790 fprintf(stderr, "chardev: pipe: no filename given\n");
794 snprintf(filename_in, 256, "%s.in", filename);
795 snprintf(filename_out, 256, "%s.out", filename);
796 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
797 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
798 if (fd_in < 0 || fd_out < 0) {
803 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
808 return qemu_chr_open_fd(fd_in, fd_out);
811 /* init terminal so that we can grab keys */
812 static struct termios oldtty;
813 static int old_fd0_flags;
814 static bool stdio_allow_signal;
816 static void term_exit(void)
818 tcsetattr (0, TCSANOW, &oldtty);
819 fcntl(0, F_SETFL, old_fd0_flags);
822 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
828 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
829 |INLCR|IGNCR|ICRNL|IXON);
830 tty.c_oflag |= OPOST;
831 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
832 tty.c_cflag &= ~(CSIZE|PARENB);
837 /* if graphical mode, we allow Ctrl-C handling */
838 if (!stdio_allow_signal)
839 tty.c_lflag &= ~ISIG;
841 tcsetattr (0, TCSANOW, &tty);
844 static void qemu_chr_close_stdio(struct CharDriverState *chr)
850 static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
852 CharDriverState *chr;
854 if (is_daemonized()) {
855 error_report("cannot use stdio with -daemonize");
858 old_fd0_flags = fcntl(0, F_GETFL);
859 tcgetattr (0, &oldtty);
860 fcntl(0, F_SETFL, O_NONBLOCK);
863 chr = qemu_chr_open_fd(0, 1);
864 chr->chr_close = qemu_chr_close_stdio;
865 chr->chr_set_echo = qemu_chr_set_echo_stdio;
866 stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
867 display_type != DT_NOGRAPHIC);
868 qemu_chr_fe_set_echo(chr, false);
874 /* Once Solaris has openpty(), this is going to be removed. */
875 static int openpty(int *amaster, int *aslave, char *name,
876 struct termios *termp, struct winsize *winp)
879 int mfd = -1, sfd = -1;
881 *amaster = *aslave = -1;
883 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
887 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
890 if ((slave = ptsname(mfd)) == NULL)
893 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
896 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
897 (termp != NULL && tcgetattr(sfd, termp) < 0))
905 ioctl(sfd, TIOCSWINSZ, winp);
916 static void cfmakeraw (struct termios *termios_p)
918 termios_p->c_iflag &=
919 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
920 termios_p->c_oflag &= ~OPOST;
921 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
922 termios_p->c_cflag &= ~(CSIZE|PARENB);
923 termios_p->c_cflag |= CS8;
925 termios_p->c_cc[VMIN] = 0;
926 termios_p->c_cc[VTIME] = 0;
930 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
931 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
932 || defined(__GLIBC__)
934 #define HAVE_CHARDEV_TTY 1
944 static void pty_chr_update_read_handler(CharDriverState *chr);
945 static void pty_chr_state(CharDriverState *chr, int connected);
947 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
949 PtyCharDriver *s = chr->opaque;
952 /* guest sends data, check for (re-)connect */
953 pty_chr_update_read_handler(chr);
956 return send_all(s->fd, buf, len);
959 static int pty_chr_read_poll(void *opaque)
961 CharDriverState *chr = opaque;
962 PtyCharDriver *s = chr->opaque;
964 s->read_bytes = qemu_chr_be_can_write(chr);
965 return s->read_bytes;
968 static void pty_chr_read(void *opaque)
970 CharDriverState *chr = opaque;
971 PtyCharDriver *s = chr->opaque;
973 uint8_t buf[READ_BUF_LEN];
976 if (len > s->read_bytes)
980 size = read(s->fd, buf, len);
981 if ((size == -1 && errno == EIO) ||
983 pty_chr_state(chr, 0);
987 pty_chr_state(chr, 1);
988 qemu_chr_be_write(chr, buf, size);
992 static void pty_chr_update_read_handler(CharDriverState *chr)
994 PtyCharDriver *s = chr->opaque;
996 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
997 pty_chr_read, NULL, chr);
1000 * Short timeout here: just need wait long enougth that qemu makes
1001 * it through the poll loop once. When reconnected we want a
1002 * short timeout so we notice it almost instantly. Otherwise
1003 * read() gives us -EIO instantly, making pty_chr_state() reset the
1004 * timeout to the normal (much longer) poll interval before the
1007 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
1010 static void pty_chr_state(CharDriverState *chr, int connected)
1012 PtyCharDriver *s = chr->opaque;
1015 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
1018 /* (re-)connect poll interval for idle guests: once per second.
1019 * We check more frequently in case the guests sends data to
1020 * the virtual device linked to our pty. */
1021 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
1024 qemu_chr_generic_open(chr);
1029 static void pty_chr_timer(void *opaque)
1031 struct CharDriverState *chr = opaque;
1032 PtyCharDriver *s = chr->opaque;
1037 /* If we arrive here without polling being cleared due
1038 * read returning -EIO, then we are (re-)connected */
1039 pty_chr_state(chr, 1);
1044 pty_chr_update_read_handler(chr);
1047 static void pty_chr_close(struct CharDriverState *chr)
1049 PtyCharDriver *s = chr->opaque;
1051 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
1053 qemu_del_timer(s->timer);
1054 qemu_free_timer(s->timer);
1056 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1059 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
1061 CharDriverState *chr;
1065 int master_fd, slave_fd, len;
1066 #if defined(__OpenBSD__) || defined(__DragonFly__)
1067 char pty_name[PATH_MAX];
1068 #define q_ptsname(x) pty_name
1070 char *pty_name = NULL;
1071 #define q_ptsname(x) ptsname(x)
1074 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1078 /* Set raw attributes on the pty. */
1079 tcgetattr(slave_fd, &tty);
1081 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1084 chr = g_malloc0(sizeof(CharDriverState));
1086 len = strlen(q_ptsname(master_fd)) + 5;
1087 chr->filename = g_malloc(len);
1088 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1089 qemu_opt_set(opts, "path", q_ptsname(master_fd));
1091 label = qemu_opts_id(opts);
1092 fprintf(stderr, "char device redirected to %s%s%s%s\n",
1093 q_ptsname(master_fd),
1094 label ? " (label " : "",
1098 s = g_malloc0(sizeof(PtyCharDriver));
1100 chr->chr_write = pty_chr_write;
1101 chr->chr_update_read_handler = pty_chr_update_read_handler;
1102 chr->chr_close = pty_chr_close;
1105 s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
1110 static void tty_serial_init(int fd, int speed,
1111 int parity, int data_bits, int stop_bits)
1117 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1118 speed, parity, data_bits, stop_bits);
1120 tcgetattr (fd, &tty);
1122 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1123 speed = speed * 10 / 11;
1140 /* Non-Posix values follow. They may be unsupported on some systems. */
1142 check_speed(115200);
1144 check_speed(230400);
1147 check_speed(460800);
1150 check_speed(500000);
1153 check_speed(576000);
1156 check_speed(921600);
1159 check_speed(1000000);
1162 check_speed(1152000);
1165 check_speed(1500000);
1168 check_speed(2000000);
1171 check_speed(2500000);
1174 check_speed(3000000);
1177 check_speed(3500000);
1180 check_speed(4000000);
1185 cfsetispeed(&tty, spd);
1186 cfsetospeed(&tty, spd);
1188 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1189 |INLCR|IGNCR|ICRNL|IXON);
1190 tty.c_oflag |= OPOST;
1191 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1192 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1213 tty.c_cflag |= PARENB;
1216 tty.c_cflag |= PARENB | PARODD;
1220 tty.c_cflag |= CSTOPB;
1222 tcsetattr (fd, TCSANOW, &tty);
1225 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1227 FDCharDriver *s = chr->opaque;
1230 case CHR_IOCTL_SERIAL_SET_PARAMS:
1232 QEMUSerialSetParams *ssp = arg;
1233 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1234 ssp->data_bits, ssp->stop_bits);
1237 case CHR_IOCTL_SERIAL_SET_BREAK:
1239 int enable = *(int *)arg;
1241 tcsendbreak(s->fd_in, 1);
1244 case CHR_IOCTL_SERIAL_GET_TIOCM:
1247 int *targ = (int *)arg;
1248 ioctl(s->fd_in, TIOCMGET, &sarg);
1250 if (sarg & TIOCM_CTS)
1251 *targ |= CHR_TIOCM_CTS;
1252 if (sarg & TIOCM_CAR)
1253 *targ |= CHR_TIOCM_CAR;
1254 if (sarg & TIOCM_DSR)
1255 *targ |= CHR_TIOCM_DSR;
1256 if (sarg & TIOCM_RI)
1257 *targ |= CHR_TIOCM_RI;
1258 if (sarg & TIOCM_DTR)
1259 *targ |= CHR_TIOCM_DTR;
1260 if (sarg & TIOCM_RTS)
1261 *targ |= CHR_TIOCM_RTS;
1264 case CHR_IOCTL_SERIAL_SET_TIOCM:
1266 int sarg = *(int *)arg;
1268 ioctl(s->fd_in, TIOCMGET, &targ);
1269 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1270 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1271 if (sarg & CHR_TIOCM_CTS)
1273 if (sarg & CHR_TIOCM_CAR)
1275 if (sarg & CHR_TIOCM_DSR)
1277 if (sarg & CHR_TIOCM_RI)
1279 if (sarg & CHR_TIOCM_DTR)
1281 if (sarg & CHR_TIOCM_RTS)
1283 ioctl(s->fd_in, TIOCMSET, &targ);
1292 static void qemu_chr_close_tty(CharDriverState *chr)
1294 FDCharDriver *s = chr->opaque;
1308 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1310 CharDriverState *chr;
1312 tty_serial_init(fd, 115200, 'N', 8, 1);
1313 chr = qemu_chr_open_fd(fd, fd);
1314 chr->chr_ioctl = tty_serial_ioctl;
1315 chr->chr_close = qemu_chr_close_tty;
1319 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1321 const char *filename = qemu_opt_get(opts, "path");
1324 TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
1328 return qemu_chr_open_tty_fd(fd);
1330 #endif /* __linux__ || __sun__ */
1332 #if defined(__linux__)
1334 #define HAVE_CHARDEV_PARPORT 1
1339 } ParallelCharDriver;
1341 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1343 if (s->mode != mode) {
1345 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1352 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1354 ParallelCharDriver *drv = chr->opaque;
1359 case CHR_IOCTL_PP_READ_DATA:
1360 if (ioctl(fd, PPRDATA, &b) < 0)
1362 *(uint8_t *)arg = b;
1364 case CHR_IOCTL_PP_WRITE_DATA:
1365 b = *(uint8_t *)arg;
1366 if (ioctl(fd, PPWDATA, &b) < 0)
1369 case CHR_IOCTL_PP_READ_CONTROL:
1370 if (ioctl(fd, PPRCONTROL, &b) < 0)
1372 /* Linux gives only the lowest bits, and no way to know data
1373 direction! For better compatibility set the fixed upper
1375 *(uint8_t *)arg = b | 0xc0;
1377 case CHR_IOCTL_PP_WRITE_CONTROL:
1378 b = *(uint8_t *)arg;
1379 if (ioctl(fd, PPWCONTROL, &b) < 0)
1382 case CHR_IOCTL_PP_READ_STATUS:
1383 if (ioctl(fd, PPRSTATUS, &b) < 0)
1385 *(uint8_t *)arg = b;
1387 case CHR_IOCTL_PP_DATA_DIR:
1388 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1391 case CHR_IOCTL_PP_EPP_READ_ADDR:
1392 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1393 struct ParallelIOArg *parg = arg;
1394 int n = read(fd, parg->buffer, parg->count);
1395 if (n != parg->count) {
1400 case CHR_IOCTL_PP_EPP_READ:
1401 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1402 struct ParallelIOArg *parg = arg;
1403 int n = read(fd, parg->buffer, parg->count);
1404 if (n != parg->count) {
1409 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1410 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1411 struct ParallelIOArg *parg = arg;
1412 int n = write(fd, parg->buffer, parg->count);
1413 if (n != parg->count) {
1418 case CHR_IOCTL_PP_EPP_WRITE:
1419 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1420 struct ParallelIOArg *parg = arg;
1421 int n = write(fd, parg->buffer, parg->count);
1422 if (n != parg->count) {
1433 static void pp_close(CharDriverState *chr)
1435 ParallelCharDriver *drv = chr->opaque;
1438 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1439 ioctl(fd, PPRELEASE);
1442 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1445 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1447 CharDriverState *chr;
1448 ParallelCharDriver *drv;
1450 if (ioctl(fd, PPCLAIM) < 0) {
1455 drv = g_malloc0(sizeof(ParallelCharDriver));
1457 drv->mode = IEEE1284_MODE_COMPAT;
1459 chr = g_malloc0(sizeof(CharDriverState));
1460 chr->chr_write = null_chr_write;
1461 chr->chr_ioctl = pp_ioctl;
1462 chr->chr_close = pp_close;
1465 qemu_chr_generic_open(chr);
1469 #endif /* __linux__ */
1471 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1473 #define HAVE_CHARDEV_PARPORT 1
1475 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1477 int fd = (int)(intptr_t)chr->opaque;
1481 case CHR_IOCTL_PP_READ_DATA:
1482 if (ioctl(fd, PPIGDATA, &b) < 0)
1484 *(uint8_t *)arg = b;
1486 case CHR_IOCTL_PP_WRITE_DATA:
1487 b = *(uint8_t *)arg;
1488 if (ioctl(fd, PPISDATA, &b) < 0)
1491 case CHR_IOCTL_PP_READ_CONTROL:
1492 if (ioctl(fd, PPIGCTRL, &b) < 0)
1494 *(uint8_t *)arg = b;
1496 case CHR_IOCTL_PP_WRITE_CONTROL:
1497 b = *(uint8_t *)arg;
1498 if (ioctl(fd, PPISCTRL, &b) < 0)
1501 case CHR_IOCTL_PP_READ_STATUS:
1502 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1504 *(uint8_t *)arg = b;
1512 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1514 CharDriverState *chr;
1516 chr = g_malloc0(sizeof(CharDriverState));
1517 chr->opaque = (void *)(intptr_t)fd;
1518 chr->chr_write = null_chr_write;
1519 chr->chr_ioctl = pp_ioctl;
1528 HANDLE hcom, hrecv, hsend;
1529 OVERLAPPED orecv, osend;
1536 HANDLE hInputReadyEvent;
1537 HANDLE hInputDoneEvent;
1538 HANDLE hInputThread;
1539 uint8_t win_stdio_buf;
1540 } WinStdioCharState;
1542 #define NSENDBUF 2048
1543 #define NRECVBUF 2048
1544 #define MAXCONNECT 1
1545 #define NTIMEOUT 5000
1547 static int win_chr_poll(void *opaque);
1548 static int win_chr_pipe_poll(void *opaque);
1550 static void win_chr_close(CharDriverState *chr)
1552 WinCharState *s = chr->opaque;
1555 CloseHandle(s->hsend);
1559 CloseHandle(s->hrecv);
1563 CloseHandle(s->hcom);
1567 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1569 qemu_del_polling_cb(win_chr_poll, chr);
1571 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1574 static int win_chr_init(CharDriverState *chr, const char *filename)
1576 WinCharState *s = chr->opaque;
1578 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1583 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1585 fprintf(stderr, "Failed CreateEvent\n");
1588 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1590 fprintf(stderr, "Failed CreateEvent\n");
1594 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1595 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1596 if (s->hcom == INVALID_HANDLE_VALUE) {
1597 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1602 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1603 fprintf(stderr, "Failed SetupComm\n");
1607 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1608 size = sizeof(COMMCONFIG);
1609 GetDefaultCommConfig(filename, &comcfg, &size);
1610 comcfg.dcb.DCBlength = sizeof(DCB);
1611 CommConfigDialog(filename, NULL, &comcfg);
1613 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1614 fprintf(stderr, "Failed SetCommState\n");
1618 if (!SetCommMask(s->hcom, EV_ERR)) {
1619 fprintf(stderr, "Failed SetCommMask\n");
1623 cto.ReadIntervalTimeout = MAXDWORD;
1624 if (!SetCommTimeouts(s->hcom, &cto)) {
1625 fprintf(stderr, "Failed SetCommTimeouts\n");
1629 if (!ClearCommError(s->hcom, &err, &comstat)) {
1630 fprintf(stderr, "Failed ClearCommError\n");
1633 qemu_add_polling_cb(win_chr_poll, chr);
1641 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1643 WinCharState *s = chr->opaque;
1644 DWORD len, ret, size, err;
1647 ZeroMemory(&s->osend, sizeof(s->osend));
1648 s->osend.hEvent = s->hsend;
1651 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1653 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1655 err = GetLastError();
1656 if (err == ERROR_IO_PENDING) {
1657 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1675 static int win_chr_read_poll(CharDriverState *chr)
1677 WinCharState *s = chr->opaque;
1679 s->max_size = qemu_chr_be_can_write(chr);
1683 static void win_chr_readfile(CharDriverState *chr)
1685 WinCharState *s = chr->opaque;
1687 uint8_t buf[READ_BUF_LEN];
1690 ZeroMemory(&s->orecv, sizeof(s->orecv));
1691 s->orecv.hEvent = s->hrecv;
1692 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1694 err = GetLastError();
1695 if (err == ERROR_IO_PENDING) {
1696 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1701 qemu_chr_be_write(chr, buf, size);
1705 static void win_chr_read(CharDriverState *chr)
1707 WinCharState *s = chr->opaque;
1709 if (s->len > s->max_size)
1710 s->len = s->max_size;
1714 win_chr_readfile(chr);
1717 static int win_chr_poll(void *opaque)
1719 CharDriverState *chr = opaque;
1720 WinCharState *s = chr->opaque;
1724 ClearCommError(s->hcom, &comerr, &status);
1725 if (status.cbInQue > 0) {
1726 s->len = status.cbInQue;
1727 win_chr_read_poll(chr);
1734 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1736 CharDriverState *chr;
1739 chr = g_malloc0(sizeof(CharDriverState));
1740 s = g_malloc0(sizeof(WinCharState));
1742 chr->chr_write = win_chr_write;
1743 chr->chr_close = win_chr_close;
1745 if (win_chr_init(chr, filename) < 0) {
1750 qemu_chr_generic_open(chr);
1754 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1756 return qemu_chr_open_win_path(qemu_opt_get(opts, "path"));
1759 static int win_chr_pipe_poll(void *opaque)
1761 CharDriverState *chr = opaque;
1762 WinCharState *s = chr->opaque;
1765 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1768 win_chr_read_poll(chr);
1775 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1777 WinCharState *s = chr->opaque;
1785 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1787 fprintf(stderr, "Failed CreateEvent\n");
1790 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1792 fprintf(stderr, "Failed CreateEvent\n");
1796 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1797 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1798 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1800 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1801 if (s->hcom == INVALID_HANDLE_VALUE) {
1802 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1807 ZeroMemory(&ov, sizeof(ov));
1808 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1809 ret = ConnectNamedPipe(s->hcom, &ov);
1811 fprintf(stderr, "Failed ConnectNamedPipe\n");
1815 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1817 fprintf(stderr, "Failed GetOverlappedResult\n");
1819 CloseHandle(ov.hEvent);
1826 CloseHandle(ov.hEvent);
1829 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1838 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1840 const char *filename = qemu_opt_get(opts, "path");
1841 CharDriverState *chr;
1844 chr = g_malloc0(sizeof(CharDriverState));
1845 s = g_malloc0(sizeof(WinCharState));
1847 chr->chr_write = win_chr_write;
1848 chr->chr_close = win_chr_close;
1850 if (win_chr_pipe_init(chr, filename) < 0) {
1855 qemu_chr_generic_open(chr);
1859 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1861 CharDriverState *chr;
1864 chr = g_malloc0(sizeof(CharDriverState));
1865 s = g_malloc0(sizeof(WinCharState));
1868 chr->chr_write = win_chr_write;
1869 qemu_chr_generic_open(chr);
1873 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1875 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1878 static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
1880 const char *file_out = qemu_opt_get(opts, "path");
1883 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1884 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1885 if (fd_out == INVALID_HANDLE_VALUE) {
1889 return qemu_chr_open_win_file(fd_out);
1892 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1894 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1901 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1911 static void win_stdio_wait_func(void *opaque)
1913 CharDriverState *chr = opaque;
1914 WinStdioCharState *stdio = chr->opaque;
1915 INPUT_RECORD buf[4];
1920 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1924 /* Avoid error storm */
1925 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1929 for (i = 0; i < dwSize; i++) {
1930 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
1932 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
1934 if (kev->uChar.AsciiChar != 0) {
1935 for (j = 0; j < kev->wRepeatCount; j++) {
1936 if (qemu_chr_be_can_write(chr)) {
1937 uint8_t c = kev->uChar.AsciiChar;
1938 qemu_chr_be_write(chr, &c, 1);
1946 static DWORD WINAPI win_stdio_thread(LPVOID param)
1948 CharDriverState *chr = param;
1949 WinStdioCharState *stdio = chr->opaque;
1955 /* Wait for one byte */
1956 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
1958 /* Exit in case of error, continue if nothing read */
1966 /* Some terminal emulator returns \r\n for Enter, just pass \n */
1967 if (stdio->win_stdio_buf == '\r') {
1971 /* Signal the main thread and wait until the byte was eaten */
1972 if (!SetEvent(stdio->hInputReadyEvent)) {
1975 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
1981 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
1985 static void win_stdio_thread_wait_func(void *opaque)
1987 CharDriverState *chr = opaque;
1988 WinStdioCharState *stdio = chr->opaque;
1990 if (qemu_chr_be_can_write(chr)) {
1991 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
1994 SetEvent(stdio->hInputDoneEvent);
1997 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
1999 WinStdioCharState *stdio = chr->opaque;
2002 GetConsoleMode(stdio->hStdIn, &dwMode);
2005 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2007 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2011 static void win_stdio_close(CharDriverState *chr)
2013 WinStdioCharState *stdio = chr->opaque;
2015 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2016 CloseHandle(stdio->hInputReadyEvent);
2018 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2019 CloseHandle(stdio->hInputDoneEvent);
2021 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2022 TerminateThread(stdio->hInputThread, 0);
2025 g_free(chr->opaque);
2029 static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
2031 CharDriverState *chr;
2032 WinStdioCharState *stdio;
2036 chr = g_malloc0(sizeof(CharDriverState));
2037 stdio = g_malloc0(sizeof(WinStdioCharState));
2039 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2040 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2041 fprintf(stderr, "cannot open stdio: invalid handle\n");
2045 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2047 chr->opaque = stdio;
2048 chr->chr_write = win_stdio_write;
2049 chr->chr_close = win_stdio_close;
2052 if (qemu_add_wait_object(stdio->hStdIn,
2053 win_stdio_wait_func, chr)) {
2054 fprintf(stderr, "qemu_add_wait_object: failed\n");
2059 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2060 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2061 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2064 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2065 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2066 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2067 fprintf(stderr, "cannot create stdio thread or event\n");
2070 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2071 win_stdio_thread_wait_func, chr)) {
2072 fprintf(stderr, "qemu_add_wait_object: failed\n");
2076 dwMode |= ENABLE_LINE_INPUT;
2079 /* set the terminal in raw mode */
2080 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2081 dwMode |= ENABLE_PROCESSED_INPUT;
2084 SetConsoleMode(stdio->hStdIn, dwMode);
2086 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2087 qemu_chr_fe_set_echo(chr, false);
2091 #endif /* !_WIN32 */
2093 /***********************************************************/
2094 /* UDP Net console */
2098 uint8_t buf[READ_BUF_LEN];
2104 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2106 NetCharDriver *s = chr->opaque;
2108 return send(s->fd, (const void *)buf, len, 0);
2111 static int udp_chr_read_poll(void *opaque)
2113 CharDriverState *chr = opaque;
2114 NetCharDriver *s = chr->opaque;
2116 s->max_size = qemu_chr_be_can_write(chr);
2118 /* If there were any stray characters in the queue process them
2121 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2122 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2124 s->max_size = qemu_chr_be_can_write(chr);
2129 static void udp_chr_read(void *opaque)
2131 CharDriverState *chr = opaque;
2132 NetCharDriver *s = chr->opaque;
2134 if (s->max_size == 0)
2136 s->bufcnt = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0);
2137 s->bufptr = s->bufcnt;
2142 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2143 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2145 s->max_size = qemu_chr_be_can_write(chr);
2149 static void udp_chr_update_read_handler(CharDriverState *chr)
2151 NetCharDriver *s = chr->opaque;
2154 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
2155 udp_chr_read, NULL, chr);
2159 static void udp_chr_close(CharDriverState *chr)
2161 NetCharDriver *s = chr->opaque;
2163 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2167 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2170 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2172 CharDriverState *chr = NULL;
2173 NetCharDriver *s = NULL;
2174 Error *local_err = NULL;
2177 chr = g_malloc0(sizeof(CharDriverState));
2178 s = g_malloc0(sizeof(NetCharDriver));
2180 fd = inet_dgram_opts(opts, &local_err);
2189 chr->chr_write = udp_chr_write;
2190 chr->chr_update_read_handler = udp_chr_update_read_handler;
2191 chr->chr_close = udp_chr_close;
2196 qerror_report_err(local_err);
2197 error_free(local_err);
2207 /***********************************************************/
2208 /* TCP Net console */
2220 static void tcp_chr_accept(void *opaque);
2222 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2224 TCPCharDriver *s = chr->opaque;
2226 return send_all(s->fd, buf, len);
2228 /* XXX: indicate an error ? */
2233 static int tcp_chr_read_poll(void *opaque)
2235 CharDriverState *chr = opaque;
2236 TCPCharDriver *s = chr->opaque;
2239 s->max_size = qemu_chr_be_can_write(chr);
2244 #define IAC_BREAK 243
2245 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2247 uint8_t *buf, int *size)
2249 /* Handle any telnet client's basic IAC options to satisfy char by
2250 * char mode with no echo. All IAC options will be removed from
2251 * the buf and the do_telnetopt variable will be used to track the
2252 * state of the width of the IAC information.
2254 * IAC commands come in sets of 3 bytes with the exception of the
2255 * "IAC BREAK" command and the double IAC.
2261 for (i = 0; i < *size; i++) {
2262 if (s->do_telnetopt > 1) {
2263 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2264 /* Double IAC means send an IAC */
2268 s->do_telnetopt = 1;
2270 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2271 /* Handle IAC break commands by sending a serial break */
2272 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2277 if (s->do_telnetopt >= 4) {
2278 s->do_telnetopt = 1;
2281 if ((unsigned char)buf[i] == IAC) {
2282 s->do_telnetopt = 2;
2293 static int tcp_get_msgfd(CharDriverState *chr)
2295 TCPCharDriver *s = chr->opaque;
2302 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2304 TCPCharDriver *s = chr->opaque;
2305 struct cmsghdr *cmsg;
2307 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2310 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2311 cmsg->cmsg_level != SOL_SOCKET ||
2312 cmsg->cmsg_type != SCM_RIGHTS)
2315 fd = *((int *)CMSG_DATA(cmsg));
2319 #ifndef MSG_CMSG_CLOEXEC
2320 qemu_set_cloexec(fd);
2328 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2330 TCPCharDriver *s = chr->opaque;
2331 struct msghdr msg = { NULL, };
2332 struct iovec iov[1];
2334 struct cmsghdr cmsg;
2335 char control[CMSG_SPACE(sizeof(int))];
2340 iov[0].iov_base = buf;
2341 iov[0].iov_len = len;
2345 msg.msg_control = &msg_control;
2346 msg.msg_controllen = sizeof(msg_control);
2348 #ifdef MSG_CMSG_CLOEXEC
2349 flags |= MSG_CMSG_CLOEXEC;
2351 ret = recvmsg(s->fd, &msg, flags);
2352 if (ret > 0 && s->is_unix) {
2353 unix_process_msgfd(chr, &msg);
2359 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2361 TCPCharDriver *s = chr->opaque;
2362 return qemu_recv(s->fd, buf, len, 0);
2366 static void tcp_chr_read(void *opaque)
2368 CharDriverState *chr = opaque;
2369 TCPCharDriver *s = chr->opaque;
2370 uint8_t buf[READ_BUF_LEN];
2373 if (!s->connected || s->max_size <= 0)
2376 if (len > s->max_size)
2378 size = tcp_chr_recv(chr, (void *)buf, len);
2380 /* connection closed */
2382 if (s->listen_fd >= 0) {
2383 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2385 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2388 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2389 } else if (size > 0) {
2390 if (s->do_telnetopt)
2391 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2393 qemu_chr_be_write(chr, buf, size);
2398 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2400 return qemu_chr_open_fd(eventfd, eventfd);
2404 static void tcp_chr_connect(void *opaque)
2406 CharDriverState *chr = opaque;
2407 TCPCharDriver *s = chr->opaque;
2411 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2412 tcp_chr_read, NULL, chr);
2414 qemu_chr_generic_open(chr);
2417 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2418 static void tcp_chr_telnet_init(int fd)
2421 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2422 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2423 send(fd, (char *)buf, 3, 0);
2424 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2425 send(fd, (char *)buf, 3, 0);
2426 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2427 send(fd, (char *)buf, 3, 0);
2428 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2429 send(fd, (char *)buf, 3, 0);
2432 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2434 TCPCharDriver *s = chr->opaque;
2438 socket_set_nonblock(fd);
2440 socket_set_nodelay(fd);
2442 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
2443 tcp_chr_connect(chr);
2448 static void tcp_chr_accept(void *opaque)
2450 CharDriverState *chr = opaque;
2451 TCPCharDriver *s = chr->opaque;
2452 struct sockaddr_in saddr;
2454 struct sockaddr_un uaddr;
2456 struct sockaddr *addr;
2463 len = sizeof(uaddr);
2464 addr = (struct sockaddr *)&uaddr;
2468 len = sizeof(saddr);
2469 addr = (struct sockaddr *)&saddr;
2471 fd = qemu_accept(s->listen_fd, addr, &len);
2472 if (fd < 0 && errno != EINTR) {
2474 } else if (fd >= 0) {
2475 if (s->do_telnetopt)
2476 tcp_chr_telnet_init(fd);
2480 if (tcp_chr_add_client(chr, fd) < 0)
2484 static void tcp_chr_close(CharDriverState *chr)
2486 TCPCharDriver *s = chr->opaque;
2488 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2491 if (s->listen_fd >= 0) {
2492 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
2493 closesocket(s->listen_fd);
2496 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2499 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2500 bool is_listen, bool is_telnet,
2501 bool is_waitconnect,
2504 CharDriverState *chr = NULL;
2505 TCPCharDriver *s = NULL;
2506 char host[NI_MAXHOST], serv[NI_MAXSERV];
2507 const char *left = "", *right = "";
2508 struct sockaddr_storage ss;
2509 socklen_t ss_len = sizeof(ss);
2511 memset(&ss, 0, ss_len);
2512 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2513 error_setg(errp, "getsockname: %s", strerror(errno));
2517 chr = g_malloc0(sizeof(CharDriverState));
2518 s = g_malloc0(sizeof(TCPCharDriver));
2525 chr->filename = g_malloc(256);
2526 switch (ss.ss_family) {
2530 snprintf(chr->filename, 256, "unix:%s%s",
2531 ((struct sockaddr_un *)(&ss))->sun_path,
2532 is_listen ? ",server" : "");
2540 s->do_nodelay = do_nodelay;
2541 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2542 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2543 snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
2544 is_telnet ? "telnet" : "tcp",
2545 left, host, right, serv,
2546 is_listen ? ",server" : "");
2551 chr->chr_write = tcp_chr_write;
2552 chr->chr_close = tcp_chr_close;
2553 chr->get_msgfd = tcp_get_msgfd;
2554 chr->chr_add_client = tcp_chr_add_client;
2558 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2560 s->do_telnetopt = 1;
2565 socket_set_nodelay(fd);
2566 tcp_chr_connect(chr);
2569 if (is_listen && is_waitconnect) {
2570 printf("QEMU waiting for connection on: %s\n",
2572 tcp_chr_accept(chr);
2573 socket_set_nonblock(s->listen_fd);
2578 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2580 CharDriverState *chr = NULL;
2581 Error *local_err = NULL;
2589 is_listen = qemu_opt_get_bool(opts, "server", 0);
2590 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2591 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2592 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2593 is_unix = qemu_opt_get(opts, "path") != NULL;
2599 fd = unix_listen_opts(opts, &local_err);
2601 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2605 fd = inet_listen_opts(opts, 0, &local_err);
2607 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2614 if (!is_waitconnect)
2615 socket_set_nonblock(fd);
2617 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2618 is_waitconnect, &local_err);
2619 if (error_is_set(&local_err)) {
2627 qerror_report_err(local_err);
2628 error_free(local_err);
2634 g_free(chr->opaque);
2640 /***********************************************************/
2641 /* Memory chardev */
2644 size_t outbuf_capacity;
2648 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2650 MemoryDriver *d = chr->opaque;
2652 /* TODO: the QString implementation has the same code, we should
2653 * introduce a generic way to do this in cutils.c */
2654 if (d->outbuf_capacity < d->outbuf_size + len) {
2656 d->outbuf_capacity += len;
2657 d->outbuf_capacity *= 2;
2658 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2661 memcpy(d->outbuf + d->outbuf_size, buf, len);
2662 d->outbuf_size += len;
2667 void qemu_chr_init_mem(CharDriverState *chr)
2671 d = g_malloc(sizeof(*d));
2673 d->outbuf_capacity = 4096;
2674 d->outbuf = g_malloc0(d->outbuf_capacity);
2676 memset(chr, 0, sizeof(*chr));
2678 chr->chr_write = mem_chr_write;
2681 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2683 MemoryDriver *d = chr->opaque;
2684 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2687 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2688 void qemu_chr_close_mem(CharDriverState *chr)
2690 MemoryDriver *d = chr->opaque;
2693 g_free(chr->opaque);
2695 chr->chr_write = NULL;
2698 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2700 const MemoryDriver *d = chr->opaque;
2701 return d->outbuf_size;
2704 /*********************************************************/
2705 /* Ring buffer chardev */
2712 } RingBufCharDriver;
2714 static size_t ringbuf_count(const CharDriverState *chr)
2716 const RingBufCharDriver *d = chr->opaque;
2718 return d->prod - d->cons;
2721 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2723 RingBufCharDriver *d = chr->opaque;
2726 if (!buf || (len < 0)) {
2730 for (i = 0; i < len; i++ ) {
2731 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2732 if (d->prod - d->cons > d->size) {
2733 d->cons = d->prod - d->size;
2740 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2742 RingBufCharDriver *d = chr->opaque;
2745 for (i = 0; i < len && d->cons != d->prod; i++) {
2746 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2752 static void ringbuf_chr_close(struct CharDriverState *chr)
2754 RingBufCharDriver *d = chr->opaque;
2761 static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
2763 CharDriverState *chr;
2764 RingBufCharDriver *d;
2766 chr = g_malloc0(sizeof(CharDriverState));
2767 d = g_malloc(sizeof(*d));
2769 d->size = qemu_opt_get_size(opts, "size", 0);
2774 /* The size must be power of 2 */
2775 if (d->size & (d->size - 1)) {
2776 error_report("size of ringbuf device must be power of two");
2782 d->cbuf = g_malloc0(d->size);
2785 chr->chr_write = ringbuf_chr_write;
2786 chr->chr_close = ringbuf_chr_close;
2796 static bool chr_is_ringbuf(const CharDriverState *chr)
2798 return chr->chr_write == ringbuf_chr_write;
2801 void qmp_ringbuf_write(const char *device, const char *data,
2802 bool has_format, enum DataFormat format,
2805 CharDriverState *chr;
2806 const uint8_t *write_data;
2810 chr = qemu_chr_find(device);
2812 error_setg(errp, "Device '%s' not found", device);
2816 if (!chr_is_ringbuf(chr)) {
2817 error_setg(errp,"%s is not a ringbuf device", device);
2821 if (has_format && (format == DATA_FORMAT_BASE64)) {
2822 write_data = g_base64_decode(data, &write_count);
2824 write_data = (uint8_t *)data;
2825 write_count = strlen(data);
2828 ret = ringbuf_chr_write(chr, write_data, write_count);
2830 if (write_data != (uint8_t *)data) {
2831 g_free((void *)write_data);
2835 error_setg(errp, "Failed to write to device %s", device);
2840 char *qmp_ringbuf_read(const char *device, int64_t size,
2841 bool has_format, enum DataFormat format,
2844 CharDriverState *chr;
2849 chr = qemu_chr_find(device);
2851 error_setg(errp, "Device '%s' not found", device);
2855 if (!chr_is_ringbuf(chr)) {
2856 error_setg(errp,"%s is not a ringbuf device", device);
2861 error_setg(errp, "size must be greater than zero");
2865 count = ringbuf_count(chr);
2866 size = size > count ? count : size;
2867 read_data = g_malloc(size + 1);
2869 ringbuf_chr_read(chr, read_data, size);
2871 if (has_format && (format == DATA_FORMAT_BASE64)) {
2872 data = g_base64_encode(read_data, size);
2876 * FIXME should read only complete, valid UTF-8 characters up
2877 * to @size bytes. Invalid sequences should be replaced by a
2878 * suitable replacement character. Except when (and only
2879 * when) ring buffer lost characters since last read, initial
2880 * continuation characters should be dropped.
2882 read_data[size] = 0;
2883 data = (char *)read_data;
2889 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2891 char host[65], port[33], width[8], height[8];
2895 Error *local_err = NULL;
2897 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
2898 if (error_is_set(&local_err)) {
2899 qerror_report_err(local_err);
2900 error_free(local_err);
2904 if (strstart(filename, "mon:", &p)) {
2906 qemu_opt_set(opts, "mux", "on");
2909 if (strcmp(filename, "null") == 0 ||
2910 strcmp(filename, "pty") == 0 ||
2911 strcmp(filename, "msmouse") == 0 ||
2912 strcmp(filename, "braille") == 0 ||
2913 strcmp(filename, "stdio") == 0) {
2914 qemu_opt_set(opts, "backend", filename);
2917 if (strstart(filename, "vc", &p)) {
2918 qemu_opt_set(opts, "backend", "vc");
2920 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2922 qemu_opt_set(opts, "width", width);
2923 qemu_opt_set(opts, "height", height);
2924 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2926 qemu_opt_set(opts, "cols", width);
2927 qemu_opt_set(opts, "rows", height);
2934 if (strcmp(filename, "con:") == 0) {
2935 qemu_opt_set(opts, "backend", "console");
2938 if (strstart(filename, "COM", NULL)) {
2939 qemu_opt_set(opts, "backend", "serial");
2940 qemu_opt_set(opts, "path", filename);
2943 if (strstart(filename, "file:", &p)) {
2944 qemu_opt_set(opts, "backend", "file");
2945 qemu_opt_set(opts, "path", p);
2948 if (strstart(filename, "pipe:", &p)) {
2949 qemu_opt_set(opts, "backend", "pipe");
2950 qemu_opt_set(opts, "path", p);
2953 if (strstart(filename, "tcp:", &p) ||
2954 strstart(filename, "telnet:", &p)) {
2955 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2957 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2960 qemu_opt_set(opts, "backend", "socket");
2961 qemu_opt_set(opts, "host", host);
2962 qemu_opt_set(opts, "port", port);
2963 if (p[pos] == ',') {
2964 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2967 if (strstart(filename, "telnet:", &p))
2968 qemu_opt_set(opts, "telnet", "on");
2971 if (strstart(filename, "udp:", &p)) {
2972 qemu_opt_set(opts, "backend", "udp");
2973 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2975 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
2979 qemu_opt_set(opts, "host", host);
2980 qemu_opt_set(opts, "port", port);
2981 if (p[pos] == '@') {
2983 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2985 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2989 qemu_opt_set(opts, "localaddr", host);
2990 qemu_opt_set(opts, "localport", port);
2994 if (strstart(filename, "unix:", &p)) {
2995 qemu_opt_set(opts, "backend", "socket");
2996 if (qemu_opts_do_parse(opts, p, "path") != 0)
3000 if (strstart(filename, "/dev/parport", NULL) ||
3001 strstart(filename, "/dev/ppi", NULL)) {
3002 qemu_opt_set(opts, "backend", "parport");
3003 qemu_opt_set(opts, "path", filename);
3006 if (strstart(filename, "/dev/", NULL)) {
3007 qemu_opt_set(opts, "backend", "tty");
3008 qemu_opt_set(opts, "path", filename);
3013 qemu_opts_del(opts);
3017 #ifdef HAVE_CHARDEV_PARPORT
3019 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
3021 const char *filename = qemu_opt_get(opts, "path");
3024 fd = qemu_open(filename, O_RDWR);
3028 return qemu_chr_open_pp_fd(fd);
3033 static const struct {
3035 CharDriverState *(*open)(QemuOpts *opts);
3036 } backend_table[] = {
3037 { .name = "null", .open = qemu_chr_open_null },
3038 { .name = "socket", .open = qemu_chr_open_socket },
3039 { .name = "udp", .open = qemu_chr_open_udp },
3040 { .name = "msmouse", .open = qemu_chr_open_msmouse },
3041 { .name = "vc", .open = vc_init },
3042 { .name = "memory", .open = qemu_chr_open_ringbuf },
3044 { .name = "file", .open = qemu_chr_open_win_file_out },
3045 { .name = "pipe", .open = qemu_chr_open_win_pipe },
3046 { .name = "console", .open = qemu_chr_open_win_con },
3047 { .name = "serial", .open = qemu_chr_open_win },
3048 { .name = "stdio", .open = qemu_chr_open_win_stdio },
3050 { .name = "file", .open = qemu_chr_open_file_out },
3051 { .name = "pipe", .open = qemu_chr_open_pipe },
3052 { .name = "stdio", .open = qemu_chr_open_stdio },
3054 #ifdef CONFIG_BRLAPI
3055 { .name = "braille", .open = chr_baum_init },
3057 #ifdef HAVE_CHARDEV_TTY
3058 { .name = "tty", .open = qemu_chr_open_tty },
3059 { .name = "serial", .open = qemu_chr_open_tty },
3060 { .name = "pty", .open = qemu_chr_open_pty },
3062 #ifdef HAVE_CHARDEV_PARPORT
3063 { .name = "parallel", .open = qemu_chr_open_pp },
3064 { .name = "parport", .open = qemu_chr_open_pp },
3067 { .name = "spicevmc", .open = qemu_chr_open_spice },
3068 #if SPICE_SERVER_VERSION >= 0x000c02
3069 { .name = "spiceport", .open = qemu_chr_open_spice_port },
3074 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3075 void (*init)(struct CharDriverState *s),
3078 CharDriverState *chr;
3081 if (qemu_opts_id(opts) == NULL) {
3082 error_setg(errp, "chardev: no id specified");
3086 if (qemu_opt_get(opts, "backend") == NULL) {
3087 error_setg(errp, "chardev: \"%s\" missing backend",
3088 qemu_opts_id(opts));
3091 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
3092 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
3095 if (i == ARRAY_SIZE(backend_table)) {
3096 error_setg(errp, "chardev: backend \"%s\" not found",
3097 qemu_opt_get(opts, "backend"));
3101 chr = backend_table[i].open(opts);
3103 error_setg(errp, "chardev: opening backend \"%s\" failed",
3104 qemu_opt_get(opts, "backend"));
3109 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3111 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3113 if (qemu_opt_get_bool(opts, "mux", 0)) {
3114 CharDriverState *base = chr;
3115 int len = strlen(qemu_opts_id(opts)) + 6;
3116 base->label = g_malloc(len);
3117 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3118 chr = qemu_chr_open_mux(base);
3119 chr->filename = base->filename;
3120 chr->avail_connections = MAX_MUX;
3121 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3123 chr->avail_connections = 1;
3125 chr->label = g_strdup(qemu_opts_id(opts));
3130 qemu_opts_del(opts);
3134 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3137 CharDriverState *chr;
3141 if (strstart(filename, "chardev:", &p)) {
3142 return qemu_chr_find(p);
3145 opts = qemu_chr_parse_compat(label, filename);
3149 chr = qemu_chr_new_from_opts(opts, init, &err);
3150 if (error_is_set(&err)) {
3151 fprintf(stderr, "%s\n", error_get_pretty(err));
3154 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3155 monitor_init(chr, MONITOR_USE_READLINE);
3160 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3162 if (chr->chr_set_echo) {
3163 chr->chr_set_echo(chr, echo);
3167 void qemu_chr_fe_open(struct CharDriverState *chr)
3169 if (chr->chr_guest_open) {
3170 chr->chr_guest_open(chr);
3174 void qemu_chr_fe_close(struct CharDriverState *chr)
3176 if (chr->chr_guest_close) {
3177 chr->chr_guest_close(chr);
3181 void qemu_chr_delete(CharDriverState *chr)
3183 QTAILQ_REMOVE(&chardevs, chr, next);
3184 if (chr->chr_close) {
3185 chr->chr_close(chr);
3187 g_free(chr->filename);
3190 qemu_opts_del(chr->opts);
3195 ChardevInfoList *qmp_query_chardev(Error **errp)
3197 ChardevInfoList *chr_list = NULL;
3198 CharDriverState *chr;
3200 QTAILQ_FOREACH(chr, &chardevs, next) {
3201 ChardevInfoList *info = g_malloc0(sizeof(*info));
3202 info->value = g_malloc0(sizeof(*info->value));
3203 info->value->label = g_strdup(chr->label);
3204 info->value->filename = g_strdup(chr->filename);
3206 info->next = chr_list;
3213 CharDriverState *qemu_chr_find(const char *name)
3215 CharDriverState *chr;
3217 QTAILQ_FOREACH(chr, &chardevs, next) {
3218 if (strcmp(chr->label, name) != 0)
3225 /* Get a character (serial) device interface. */
3226 CharDriverState *qemu_char_get_next_serial(void)
3228 static int next_serial;
3230 /* FIXME: This function needs to go away: use chardev properties! */
3231 return serial_hds[next_serial++];
3234 QemuOptsList qemu_chardev_opts = {
3236 .implied_opt_name = "backend",
3237 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3241 .type = QEMU_OPT_STRING,
3244 .type = QEMU_OPT_STRING,
3247 .type = QEMU_OPT_STRING,
3250 .type = QEMU_OPT_STRING,
3252 .name = "localaddr",
3253 .type = QEMU_OPT_STRING,
3255 .name = "localport",
3256 .type = QEMU_OPT_STRING,
3259 .type = QEMU_OPT_NUMBER,
3262 .type = QEMU_OPT_BOOL,
3265 .type = QEMU_OPT_BOOL,
3268 .type = QEMU_OPT_BOOL,
3271 .type = QEMU_OPT_BOOL,
3274 .type = QEMU_OPT_BOOL,
3277 .type = QEMU_OPT_BOOL,
3280 .type = QEMU_OPT_NUMBER,
3283 .type = QEMU_OPT_NUMBER,
3286 .type = QEMU_OPT_NUMBER,
3289 .type = QEMU_OPT_NUMBER,
3292 .type = QEMU_OPT_BOOL,
3295 .type = QEMU_OPT_BOOL,
3298 .type = QEMU_OPT_STRING,
3301 .type = QEMU_OPT_NUMBER,
3304 .type = QEMU_OPT_SIZE,
3306 { /* end of list */ }
3312 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3317 error_setg(errp, "input file not supported");
3321 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3322 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3323 if (out == INVALID_HANDLE_VALUE) {
3324 error_setg(errp, "open %s failed", file->out);
3327 return qemu_chr_open_win_file(out);
3330 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3333 return qemu_chr_open_win_path(serial->device);
3336 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3339 error_setg(errp, "character device backend type 'parallel' not supported");
3345 static int qmp_chardev_open_file_source(char *src, int flags,
3350 TFR(fd = qemu_open(src, flags, 0666));
3352 error_setg(errp, "open %s: %s", src, strerror(errno));
3357 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3359 int flags, in = -1, out = -1;
3361 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3362 out = qmp_chardev_open_file_source(file->out, flags, errp);
3363 if (error_is_set(errp)) {
3369 in = qmp_chardev_open_file_source(file->in, flags, errp);
3370 if (error_is_set(errp)) {
3376 return qemu_chr_open_fd(in, out);
3379 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3382 #ifdef HAVE_CHARDEV_TTY
3385 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3386 if (error_is_set(errp)) {
3389 socket_set_nonblock(fd);
3390 return qemu_chr_open_tty_fd(fd);
3392 error_setg(errp, "character device backend type 'serial' not supported");
3397 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3400 #ifdef HAVE_CHARDEV_PARPORT
3403 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3404 if (error_is_set(errp)) {
3407 return qemu_chr_open_pp_fd(fd);
3409 error_setg(errp, "character device backend type 'parallel' not supported");
3416 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3419 SocketAddress *addr = sock->addr;
3420 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3421 bool is_listen = sock->has_server ? sock->server : true;
3422 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3423 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3427 fd = socket_listen(addr, errp);
3429 fd = socket_connect(addr, errp, NULL, NULL);
3431 if (error_is_set(errp)) {
3434 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3435 is_telnet, is_waitconnect, errp);
3438 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3441 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3442 CharDriverState *chr = NULL;
3444 chr = qemu_chr_find(id);
3446 error_setg(errp, "Chardev '%s' already exists", id);
3451 switch (backend->kind) {
3452 case CHARDEV_BACKEND_KIND_FILE:
3453 chr = qmp_chardev_open_file(backend->file, errp);
3455 case CHARDEV_BACKEND_KIND_SERIAL:
3456 chr = qmp_chardev_open_serial(backend->serial, errp);
3458 case CHARDEV_BACKEND_KIND_PARALLEL:
3459 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3461 case CHARDEV_BACKEND_KIND_SOCKET:
3462 chr = qmp_chardev_open_socket(backend->socket, errp);
3464 #ifdef HAVE_CHARDEV_TTY
3465 case CHARDEV_BACKEND_KIND_PTY:
3467 /* qemu_chr_open_pty sets "path" in opts */
3469 opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
3470 chr = qemu_chr_open_pty(opts);
3471 ret->pty = g_strdup(qemu_opt_get(opts, "path"));
3472 ret->has_pty = true;
3473 qemu_opts_del(opts);
3477 case CHARDEV_BACKEND_KIND_NULL:
3478 chr = qemu_chr_open_null(NULL);
3481 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3485 if (chr == NULL && !error_is_set(errp)) {
3486 error_setg(errp, "Failed to create chardev");
3489 chr->label = g_strdup(id);
3490 chr->avail_connections = 1;
3491 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3499 void qmp_chardev_remove(const char *id, Error **errp)
3501 CharDriverState *chr;
3503 chr = qemu_chr_find(id);
3505 error_setg(errp, "Chardev '%s' not found", id);
3508 if (chr->chr_can_read || chr->chr_read ||
3509 chr->chr_event || chr->handler_opaque) {
3510 error_setg(errp, "Chardev '%s' is busy", id);
3513 qemu_chr_delete(chr);