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) {
544 typedef struct IOWatchPoll
549 IOCanReadHandler *fd_can_read;
552 QTAILQ_ENTRY(IOWatchPoll) node;
555 static QTAILQ_HEAD(, IOWatchPoll) io_watch_poll_list =
556 QTAILQ_HEAD_INITIALIZER(io_watch_poll_list);
558 static IOWatchPoll *io_watch_poll_from_source(GSource *source)
562 QTAILQ_FOREACH(i, &io_watch_poll_list, node) {
563 if (i->src == source) {
571 static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
573 IOWatchPoll *iwp = io_watch_poll_from_source(source);
575 iwp->max_size = iwp->fd_can_read(iwp->opaque);
576 if (iwp->max_size == 0) {
580 return g_io_watch_funcs.prepare(source, timeout_);
583 static gboolean io_watch_poll_check(GSource *source)
585 IOWatchPoll *iwp = io_watch_poll_from_source(source);
587 if (iwp->max_size == 0) {
591 return g_io_watch_funcs.check(source);
594 static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
597 return g_io_watch_funcs.dispatch(source, callback, user_data);
600 static void io_watch_poll_finalize(GSource *source)
602 IOWatchPoll *iwp = io_watch_poll_from_source(source);
603 QTAILQ_REMOVE(&io_watch_poll_list, iwp, node);
604 g_io_watch_funcs.finalize(source);
607 static GSourceFuncs io_watch_poll_funcs = {
608 .prepare = io_watch_poll_prepare,
609 .check = io_watch_poll_check,
610 .dispatch = io_watch_poll_dispatch,
611 .finalize = io_watch_poll_finalize,
614 /* Can only be used for read */
615 static guint io_add_watch_poll(GIOChannel *channel,
616 IOCanReadHandler *fd_can_read,
624 src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
625 g_source_set_funcs(src, &io_watch_poll_funcs);
626 g_source_set_callback(src, (GSourceFunc)fd_read, user_data, NULL);
627 tag = g_source_attach(src, NULL);
630 iwp = g_malloc0(sizeof(*iwp));
633 iwp->fd_can_read = fd_can_read;
634 iwp->opaque = user_data;
636 QTAILQ_INSERT_HEAD(&io_watch_poll_list, iwp, node);
641 static GIOChannel *io_channel_from_fd(int fd)
649 chan = g_io_channel_unix_new(fd);
651 g_io_channel_set_encoding(chan, NULL, NULL);
652 g_io_channel_set_buffered(chan, FALSE);
657 static int io_channel_send_all(GIOChannel *fd, const void *_buf, int len1)
662 const uint8_t *buf = _buf;
666 status = g_io_channel_write_chars(fd, (const gchar *)buf, len,
667 &bytes_written, NULL);
668 if (status != G_IO_STATUS_NORMAL) {
669 if (status != G_IO_STATUS_AGAIN) {
672 } else if (status == G_IO_STATUS_EOF) {
675 buf += bytes_written;
676 len -= bytes_written;
682 typedef struct FDCharDriver {
683 CharDriverState *chr;
684 GIOChannel *fd_in, *fd_out;
687 QTAILQ_ENTRY(FDCharDriver) node;
690 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
692 FDCharDriver *s = chr->opaque;
694 return io_channel_send_all(s->fd_out, buf, len);
697 static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
699 CharDriverState *chr = opaque;
700 FDCharDriver *s = chr->opaque;
702 uint8_t buf[READ_BUF_LEN];
707 if (len > s->max_size) {
714 status = g_io_channel_read_chars(chan, (gchar *)buf,
715 len, &bytes_read, NULL);
716 if (status == G_IO_STATUS_EOF) {
717 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
720 if (status == G_IO_STATUS_NORMAL) {
721 qemu_chr_be_write(chr, buf, bytes_read);
727 static int fd_chr_read_poll(void *opaque)
729 CharDriverState *chr = opaque;
730 FDCharDriver *s = chr->opaque;
732 s->max_size = qemu_chr_be_can_write(chr);
736 static void fd_chr_update_read_handler(CharDriverState *chr)
738 FDCharDriver *s = chr->opaque;
741 g_source_remove(s->fd_in_tag);
745 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
749 static void fd_chr_close(struct CharDriverState *chr)
751 FDCharDriver *s = chr->opaque;
754 g_source_remove(s->fd_in_tag);
759 g_io_channel_unref(s->fd_in);
762 g_io_channel_unref(s->fd_out);
766 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
769 /* open a character device to a unix fd */
770 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
772 CharDriverState *chr;
775 chr = g_malloc0(sizeof(CharDriverState));
776 s = g_malloc0(sizeof(FDCharDriver));
777 s->fd_in = io_channel_from_fd(fd_in);
778 s->fd_out = io_channel_from_fd(fd_out);
781 chr->chr_write = fd_chr_write;
782 chr->chr_update_read_handler = fd_chr_update_read_handler;
783 chr->chr_close = fd_chr_close;
785 qemu_chr_generic_open(chr);
790 static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
794 TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
795 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
799 return qemu_chr_open_fd(-1, fd_out);
802 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
805 char filename_in[256], filename_out[256];
806 const char *filename = qemu_opt_get(opts, "path");
808 if (filename == NULL) {
809 fprintf(stderr, "chardev: pipe: no filename given\n");
813 snprintf(filename_in, 256, "%s.in", filename);
814 snprintf(filename_out, 256, "%s.out", filename);
815 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
816 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
817 if (fd_in < 0 || fd_out < 0) {
822 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
827 return qemu_chr_open_fd(fd_in, fd_out);
830 /* init terminal so that we can grab keys */
831 static struct termios oldtty;
832 static int old_fd0_flags;
833 static bool stdio_allow_signal;
835 static void term_exit(void)
837 tcsetattr (0, TCSANOW, &oldtty);
838 fcntl(0, F_SETFL, old_fd0_flags);
841 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
847 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
848 |INLCR|IGNCR|ICRNL|IXON);
849 tty.c_oflag |= OPOST;
850 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
851 tty.c_cflag &= ~(CSIZE|PARENB);
856 /* if graphical mode, we allow Ctrl-C handling */
857 if (!stdio_allow_signal)
858 tty.c_lflag &= ~ISIG;
860 tcsetattr (0, TCSANOW, &tty);
863 static void qemu_chr_close_stdio(struct CharDriverState *chr)
869 static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
871 CharDriverState *chr;
873 if (is_daemonized()) {
874 error_report("cannot use stdio with -daemonize");
877 old_fd0_flags = fcntl(0, F_GETFL);
878 tcgetattr (0, &oldtty);
879 fcntl(0, F_SETFL, O_NONBLOCK);
882 chr = qemu_chr_open_fd(0, 1);
883 chr->chr_close = qemu_chr_close_stdio;
884 chr->chr_set_echo = qemu_chr_set_echo_stdio;
885 stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
886 display_type != DT_NOGRAPHIC);
887 qemu_chr_fe_set_echo(chr, false);
893 /* Once Solaris has openpty(), this is going to be removed. */
894 static int openpty(int *amaster, int *aslave, char *name,
895 struct termios *termp, struct winsize *winp)
898 int mfd = -1, sfd = -1;
900 *amaster = *aslave = -1;
902 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
906 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
909 if ((slave = ptsname(mfd)) == NULL)
912 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
915 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
916 (termp != NULL && tcgetattr(sfd, termp) < 0))
924 ioctl(sfd, TIOCSWINSZ, winp);
935 static void cfmakeraw (struct termios *termios_p)
937 termios_p->c_iflag &=
938 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
939 termios_p->c_oflag &= ~OPOST;
940 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
941 termios_p->c_cflag &= ~(CSIZE|PARENB);
942 termios_p->c_cflag |= CS8;
944 termios_p->c_cc[VMIN] = 0;
945 termios_p->c_cc[VTIME] = 0;
949 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
950 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
951 || defined(__GLIBC__)
953 #define HAVE_CHARDEV_TTY 1
964 static void pty_chr_update_read_handler(CharDriverState *chr);
965 static void pty_chr_state(CharDriverState *chr, int connected);
967 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
969 PtyCharDriver *s = chr->opaque;
972 /* guest sends data, check for (re-)connect */
973 pty_chr_update_read_handler(chr);
976 return io_channel_send_all(s->fd, buf, len);
979 static int pty_chr_read_poll(void *opaque)
981 CharDriverState *chr = opaque;
982 PtyCharDriver *s = chr->opaque;
984 s->read_bytes = qemu_chr_be_can_write(chr);
985 return s->read_bytes;
988 static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
990 CharDriverState *chr = opaque;
991 PtyCharDriver *s = chr->opaque;
993 uint8_t buf[READ_BUF_LEN];
997 if (len > s->read_bytes)
1001 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1002 if (status != G_IO_STATUS_NORMAL) {
1003 pty_chr_state(chr, 0);
1006 pty_chr_state(chr, 1);
1007 qemu_chr_be_write(chr, buf, size);
1012 static void pty_chr_update_read_handler(CharDriverState *chr)
1014 PtyCharDriver *s = chr->opaque;
1017 g_source_remove(s->fd_tag);
1020 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
1023 * Short timeout here: just need wait long enougth that qemu makes
1024 * it through the poll loop once. When reconnected we want a
1025 * short timeout so we notice it almost instantly. Otherwise
1026 * read() gives us -EIO instantly, making pty_chr_state() reset the
1027 * timeout to the normal (much longer) poll interval before the
1030 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
1033 static void pty_chr_state(CharDriverState *chr, int connected)
1035 PtyCharDriver *s = chr->opaque;
1038 g_source_remove(s->fd_tag);
1042 /* (re-)connect poll interval for idle guests: once per second.
1043 * We check more frequently in case the guests sends data to
1044 * the virtual device linked to our pty. */
1045 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
1048 qemu_chr_generic_open(chr);
1053 static void pty_chr_timer(void *opaque)
1055 struct CharDriverState *chr = opaque;
1056 PtyCharDriver *s = chr->opaque;
1061 /* If we arrive here without polling being cleared due
1062 * read returning -EIO, then we are (re-)connected */
1063 pty_chr_state(chr, 1);
1068 pty_chr_update_read_handler(chr);
1071 static void pty_chr_close(struct CharDriverState *chr)
1073 PtyCharDriver *s = chr->opaque;
1077 g_source_remove(s->fd_tag);
1079 fd = g_io_channel_unix_get_fd(s->fd);
1080 g_io_channel_unref(s->fd);
1082 qemu_del_timer(s->timer);
1083 qemu_free_timer(s->timer);
1085 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1088 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
1090 CharDriverState *chr;
1094 int master_fd, slave_fd, len;
1095 #if defined(__OpenBSD__) || defined(__DragonFly__)
1096 char pty_name[PATH_MAX];
1097 #define q_ptsname(x) pty_name
1099 char *pty_name = NULL;
1100 #define q_ptsname(x) ptsname(x)
1103 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1107 /* Set raw attributes on the pty. */
1108 tcgetattr(slave_fd, &tty);
1110 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1113 chr = g_malloc0(sizeof(CharDriverState));
1115 len = strlen(q_ptsname(master_fd)) + 5;
1116 chr->filename = g_malloc(len);
1117 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1118 qemu_opt_set(opts, "path", q_ptsname(master_fd));
1120 label = qemu_opts_id(opts);
1121 fprintf(stderr, "char device redirected to %s%s%s%s\n",
1122 q_ptsname(master_fd),
1123 label ? " (label " : "",
1127 s = g_malloc0(sizeof(PtyCharDriver));
1129 chr->chr_write = pty_chr_write;
1130 chr->chr_update_read_handler = pty_chr_update_read_handler;
1131 chr->chr_close = pty_chr_close;
1133 s->fd = io_channel_from_fd(master_fd);
1134 s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
1139 static void tty_serial_init(int fd, int speed,
1140 int parity, int data_bits, int stop_bits)
1146 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1147 speed, parity, data_bits, stop_bits);
1149 tcgetattr (fd, &tty);
1151 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1152 speed = speed * 10 / 11;
1169 /* Non-Posix values follow. They may be unsupported on some systems. */
1171 check_speed(115200);
1173 check_speed(230400);
1176 check_speed(460800);
1179 check_speed(500000);
1182 check_speed(576000);
1185 check_speed(921600);
1188 check_speed(1000000);
1191 check_speed(1152000);
1194 check_speed(1500000);
1197 check_speed(2000000);
1200 check_speed(2500000);
1203 check_speed(3000000);
1206 check_speed(3500000);
1209 check_speed(4000000);
1214 cfsetispeed(&tty, spd);
1215 cfsetospeed(&tty, spd);
1217 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1218 |INLCR|IGNCR|ICRNL|IXON);
1219 tty.c_oflag |= OPOST;
1220 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1221 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1242 tty.c_cflag |= PARENB;
1245 tty.c_cflag |= PARENB | PARODD;
1249 tty.c_cflag |= CSTOPB;
1251 tcsetattr (fd, TCSANOW, &tty);
1254 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1256 FDCharDriver *s = chr->opaque;
1259 case CHR_IOCTL_SERIAL_SET_PARAMS:
1261 QEMUSerialSetParams *ssp = arg;
1262 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1263 ssp->speed, ssp->parity,
1264 ssp->data_bits, ssp->stop_bits);
1267 case CHR_IOCTL_SERIAL_SET_BREAK:
1269 int enable = *(int *)arg;
1271 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1275 case CHR_IOCTL_SERIAL_GET_TIOCM:
1278 int *targ = (int *)arg;
1279 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1281 if (sarg & TIOCM_CTS)
1282 *targ |= CHR_TIOCM_CTS;
1283 if (sarg & TIOCM_CAR)
1284 *targ |= CHR_TIOCM_CAR;
1285 if (sarg & TIOCM_DSR)
1286 *targ |= CHR_TIOCM_DSR;
1287 if (sarg & TIOCM_RI)
1288 *targ |= CHR_TIOCM_RI;
1289 if (sarg & TIOCM_DTR)
1290 *targ |= CHR_TIOCM_DTR;
1291 if (sarg & TIOCM_RTS)
1292 *targ |= CHR_TIOCM_RTS;
1295 case CHR_IOCTL_SERIAL_SET_TIOCM:
1297 int sarg = *(int *)arg;
1299 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1300 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1301 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1302 if (sarg & CHR_TIOCM_CTS)
1304 if (sarg & CHR_TIOCM_CAR)
1306 if (sarg & CHR_TIOCM_DSR)
1308 if (sarg & CHR_TIOCM_RI)
1310 if (sarg & CHR_TIOCM_DTR)
1312 if (sarg & CHR_TIOCM_RTS)
1314 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1323 static void qemu_chr_close_tty(CharDriverState *chr)
1325 FDCharDriver *s = chr->opaque;
1329 fd = g_io_channel_unix_get_fd(s->fd_in);
1339 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1341 CharDriverState *chr;
1343 tty_serial_init(fd, 115200, 'N', 8, 1);
1344 chr = qemu_chr_open_fd(fd, fd);
1345 chr->chr_ioctl = tty_serial_ioctl;
1346 chr->chr_close = qemu_chr_close_tty;
1350 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1352 const char *filename = qemu_opt_get(opts, "path");
1355 TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
1359 return qemu_chr_open_tty_fd(fd);
1361 #endif /* __linux__ || __sun__ */
1363 #if defined(__linux__)
1365 #define HAVE_CHARDEV_PARPORT 1
1370 } ParallelCharDriver;
1372 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1374 if (s->mode != mode) {
1376 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1383 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1385 ParallelCharDriver *drv = chr->opaque;
1390 case CHR_IOCTL_PP_READ_DATA:
1391 if (ioctl(fd, PPRDATA, &b) < 0)
1393 *(uint8_t *)arg = b;
1395 case CHR_IOCTL_PP_WRITE_DATA:
1396 b = *(uint8_t *)arg;
1397 if (ioctl(fd, PPWDATA, &b) < 0)
1400 case CHR_IOCTL_PP_READ_CONTROL:
1401 if (ioctl(fd, PPRCONTROL, &b) < 0)
1403 /* Linux gives only the lowest bits, and no way to know data
1404 direction! For better compatibility set the fixed upper
1406 *(uint8_t *)arg = b | 0xc0;
1408 case CHR_IOCTL_PP_WRITE_CONTROL:
1409 b = *(uint8_t *)arg;
1410 if (ioctl(fd, PPWCONTROL, &b) < 0)
1413 case CHR_IOCTL_PP_READ_STATUS:
1414 if (ioctl(fd, PPRSTATUS, &b) < 0)
1416 *(uint8_t *)arg = b;
1418 case CHR_IOCTL_PP_DATA_DIR:
1419 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1422 case CHR_IOCTL_PP_EPP_READ_ADDR:
1423 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1424 struct ParallelIOArg *parg = arg;
1425 int n = read(fd, parg->buffer, parg->count);
1426 if (n != parg->count) {
1431 case CHR_IOCTL_PP_EPP_READ:
1432 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1433 struct ParallelIOArg *parg = arg;
1434 int n = read(fd, parg->buffer, parg->count);
1435 if (n != parg->count) {
1440 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1441 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1442 struct ParallelIOArg *parg = arg;
1443 int n = write(fd, parg->buffer, parg->count);
1444 if (n != parg->count) {
1449 case CHR_IOCTL_PP_EPP_WRITE:
1450 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1451 struct ParallelIOArg *parg = arg;
1452 int n = write(fd, parg->buffer, parg->count);
1453 if (n != parg->count) {
1464 static void pp_close(CharDriverState *chr)
1466 ParallelCharDriver *drv = chr->opaque;
1469 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1470 ioctl(fd, PPRELEASE);
1473 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1476 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1478 CharDriverState *chr;
1479 ParallelCharDriver *drv;
1481 if (ioctl(fd, PPCLAIM) < 0) {
1486 drv = g_malloc0(sizeof(ParallelCharDriver));
1488 drv->mode = IEEE1284_MODE_COMPAT;
1490 chr = g_malloc0(sizeof(CharDriverState));
1491 chr->chr_write = null_chr_write;
1492 chr->chr_ioctl = pp_ioctl;
1493 chr->chr_close = pp_close;
1496 qemu_chr_generic_open(chr);
1500 #endif /* __linux__ */
1502 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1504 #define HAVE_CHARDEV_PARPORT 1
1506 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1508 int fd = (int)(intptr_t)chr->opaque;
1512 case CHR_IOCTL_PP_READ_DATA:
1513 if (ioctl(fd, PPIGDATA, &b) < 0)
1515 *(uint8_t *)arg = b;
1517 case CHR_IOCTL_PP_WRITE_DATA:
1518 b = *(uint8_t *)arg;
1519 if (ioctl(fd, PPISDATA, &b) < 0)
1522 case CHR_IOCTL_PP_READ_CONTROL:
1523 if (ioctl(fd, PPIGCTRL, &b) < 0)
1525 *(uint8_t *)arg = b;
1527 case CHR_IOCTL_PP_WRITE_CONTROL:
1528 b = *(uint8_t *)arg;
1529 if (ioctl(fd, PPISCTRL, &b) < 0)
1532 case CHR_IOCTL_PP_READ_STATUS:
1533 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1535 *(uint8_t *)arg = b;
1543 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1545 CharDriverState *chr;
1547 chr = g_malloc0(sizeof(CharDriverState));
1548 chr->opaque = (void *)(intptr_t)fd;
1549 chr->chr_write = null_chr_write;
1550 chr->chr_ioctl = pp_ioctl;
1559 HANDLE hcom, hrecv, hsend;
1560 OVERLAPPED orecv, osend;
1567 HANDLE hInputReadyEvent;
1568 HANDLE hInputDoneEvent;
1569 HANDLE hInputThread;
1570 uint8_t win_stdio_buf;
1571 } WinStdioCharState;
1573 #define NSENDBUF 2048
1574 #define NRECVBUF 2048
1575 #define MAXCONNECT 1
1576 #define NTIMEOUT 5000
1578 static int win_chr_poll(void *opaque);
1579 static int win_chr_pipe_poll(void *opaque);
1581 static void win_chr_close(CharDriverState *chr)
1583 WinCharState *s = chr->opaque;
1586 CloseHandle(s->hsend);
1590 CloseHandle(s->hrecv);
1594 CloseHandle(s->hcom);
1598 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1600 qemu_del_polling_cb(win_chr_poll, chr);
1602 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1605 static int win_chr_init(CharDriverState *chr, const char *filename)
1607 WinCharState *s = chr->opaque;
1609 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1614 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1616 fprintf(stderr, "Failed CreateEvent\n");
1619 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1621 fprintf(stderr, "Failed CreateEvent\n");
1625 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1626 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1627 if (s->hcom == INVALID_HANDLE_VALUE) {
1628 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1633 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1634 fprintf(stderr, "Failed SetupComm\n");
1638 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1639 size = sizeof(COMMCONFIG);
1640 GetDefaultCommConfig(filename, &comcfg, &size);
1641 comcfg.dcb.DCBlength = sizeof(DCB);
1642 CommConfigDialog(filename, NULL, &comcfg);
1644 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1645 fprintf(stderr, "Failed SetCommState\n");
1649 if (!SetCommMask(s->hcom, EV_ERR)) {
1650 fprintf(stderr, "Failed SetCommMask\n");
1654 cto.ReadIntervalTimeout = MAXDWORD;
1655 if (!SetCommTimeouts(s->hcom, &cto)) {
1656 fprintf(stderr, "Failed SetCommTimeouts\n");
1660 if (!ClearCommError(s->hcom, &err, &comstat)) {
1661 fprintf(stderr, "Failed ClearCommError\n");
1664 qemu_add_polling_cb(win_chr_poll, chr);
1672 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1674 WinCharState *s = chr->opaque;
1675 DWORD len, ret, size, err;
1678 ZeroMemory(&s->osend, sizeof(s->osend));
1679 s->osend.hEvent = s->hsend;
1682 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1684 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1686 err = GetLastError();
1687 if (err == ERROR_IO_PENDING) {
1688 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1706 static int win_chr_read_poll(CharDriverState *chr)
1708 WinCharState *s = chr->opaque;
1710 s->max_size = qemu_chr_be_can_write(chr);
1714 static void win_chr_readfile(CharDriverState *chr)
1716 WinCharState *s = chr->opaque;
1718 uint8_t buf[READ_BUF_LEN];
1721 ZeroMemory(&s->orecv, sizeof(s->orecv));
1722 s->orecv.hEvent = s->hrecv;
1723 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1725 err = GetLastError();
1726 if (err == ERROR_IO_PENDING) {
1727 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1732 qemu_chr_be_write(chr, buf, size);
1736 static void win_chr_read(CharDriverState *chr)
1738 WinCharState *s = chr->opaque;
1740 if (s->len > s->max_size)
1741 s->len = s->max_size;
1745 win_chr_readfile(chr);
1748 static int win_chr_poll(void *opaque)
1750 CharDriverState *chr = opaque;
1751 WinCharState *s = chr->opaque;
1755 ClearCommError(s->hcom, &comerr, &status);
1756 if (status.cbInQue > 0) {
1757 s->len = status.cbInQue;
1758 win_chr_read_poll(chr);
1765 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1767 CharDriverState *chr;
1770 chr = g_malloc0(sizeof(CharDriverState));
1771 s = g_malloc0(sizeof(WinCharState));
1773 chr->chr_write = win_chr_write;
1774 chr->chr_close = win_chr_close;
1776 if (win_chr_init(chr, filename) < 0) {
1781 qemu_chr_generic_open(chr);
1785 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1787 return qemu_chr_open_win_path(qemu_opt_get(opts, "path"));
1790 static int win_chr_pipe_poll(void *opaque)
1792 CharDriverState *chr = opaque;
1793 WinCharState *s = chr->opaque;
1796 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1799 win_chr_read_poll(chr);
1806 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1808 WinCharState *s = chr->opaque;
1816 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1818 fprintf(stderr, "Failed CreateEvent\n");
1821 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1823 fprintf(stderr, "Failed CreateEvent\n");
1827 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1828 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1829 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1831 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1832 if (s->hcom == INVALID_HANDLE_VALUE) {
1833 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1838 ZeroMemory(&ov, sizeof(ov));
1839 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1840 ret = ConnectNamedPipe(s->hcom, &ov);
1842 fprintf(stderr, "Failed ConnectNamedPipe\n");
1846 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1848 fprintf(stderr, "Failed GetOverlappedResult\n");
1850 CloseHandle(ov.hEvent);
1857 CloseHandle(ov.hEvent);
1860 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1869 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1871 const char *filename = qemu_opt_get(opts, "path");
1872 CharDriverState *chr;
1875 chr = g_malloc0(sizeof(CharDriverState));
1876 s = g_malloc0(sizeof(WinCharState));
1878 chr->chr_write = win_chr_write;
1879 chr->chr_close = win_chr_close;
1881 if (win_chr_pipe_init(chr, filename) < 0) {
1886 qemu_chr_generic_open(chr);
1890 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1892 CharDriverState *chr;
1895 chr = g_malloc0(sizeof(CharDriverState));
1896 s = g_malloc0(sizeof(WinCharState));
1899 chr->chr_write = win_chr_write;
1900 qemu_chr_generic_open(chr);
1904 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1906 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1909 static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
1911 const char *file_out = qemu_opt_get(opts, "path");
1914 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1915 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1916 if (fd_out == INVALID_HANDLE_VALUE) {
1920 return qemu_chr_open_win_file(fd_out);
1923 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1925 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1932 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1942 static void win_stdio_wait_func(void *opaque)
1944 CharDriverState *chr = opaque;
1945 WinStdioCharState *stdio = chr->opaque;
1946 INPUT_RECORD buf[4];
1951 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1955 /* Avoid error storm */
1956 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1960 for (i = 0; i < dwSize; i++) {
1961 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
1963 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
1965 if (kev->uChar.AsciiChar != 0) {
1966 for (j = 0; j < kev->wRepeatCount; j++) {
1967 if (qemu_chr_be_can_write(chr)) {
1968 uint8_t c = kev->uChar.AsciiChar;
1969 qemu_chr_be_write(chr, &c, 1);
1977 static DWORD WINAPI win_stdio_thread(LPVOID param)
1979 CharDriverState *chr = param;
1980 WinStdioCharState *stdio = chr->opaque;
1986 /* Wait for one byte */
1987 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
1989 /* Exit in case of error, continue if nothing read */
1997 /* Some terminal emulator returns \r\n for Enter, just pass \n */
1998 if (stdio->win_stdio_buf == '\r') {
2002 /* Signal the main thread and wait until the byte was eaten */
2003 if (!SetEvent(stdio->hInputReadyEvent)) {
2006 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2012 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2016 static void win_stdio_thread_wait_func(void *opaque)
2018 CharDriverState *chr = opaque;
2019 WinStdioCharState *stdio = chr->opaque;
2021 if (qemu_chr_be_can_write(chr)) {
2022 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2025 SetEvent(stdio->hInputDoneEvent);
2028 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2030 WinStdioCharState *stdio = chr->opaque;
2033 GetConsoleMode(stdio->hStdIn, &dwMode);
2036 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2038 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2042 static void win_stdio_close(CharDriverState *chr)
2044 WinStdioCharState *stdio = chr->opaque;
2046 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2047 CloseHandle(stdio->hInputReadyEvent);
2049 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2050 CloseHandle(stdio->hInputDoneEvent);
2052 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2053 TerminateThread(stdio->hInputThread, 0);
2056 g_free(chr->opaque);
2060 static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
2062 CharDriverState *chr;
2063 WinStdioCharState *stdio;
2067 chr = g_malloc0(sizeof(CharDriverState));
2068 stdio = g_malloc0(sizeof(WinStdioCharState));
2070 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2071 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2072 fprintf(stderr, "cannot open stdio: invalid handle\n");
2076 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2078 chr->opaque = stdio;
2079 chr->chr_write = win_stdio_write;
2080 chr->chr_close = win_stdio_close;
2083 if (qemu_add_wait_object(stdio->hStdIn,
2084 win_stdio_wait_func, chr)) {
2085 fprintf(stderr, "qemu_add_wait_object: failed\n");
2090 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2091 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2092 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2095 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2096 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2097 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2098 fprintf(stderr, "cannot create stdio thread or event\n");
2101 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2102 win_stdio_thread_wait_func, chr)) {
2103 fprintf(stderr, "qemu_add_wait_object: failed\n");
2107 dwMode |= ENABLE_LINE_INPUT;
2110 /* set the terminal in raw mode */
2111 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2112 dwMode |= ENABLE_PROCESSED_INPUT;
2115 SetConsoleMode(stdio->hStdIn, dwMode);
2117 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2118 qemu_chr_fe_set_echo(chr, false);
2122 #endif /* !_WIN32 */
2124 /***********************************************************/
2125 /* UDP Net console */
2129 uint8_t buf[READ_BUF_LEN];
2135 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2137 NetCharDriver *s = chr->opaque;
2139 return send(s->fd, (const void *)buf, len, 0);
2142 static int udp_chr_read_poll(void *opaque)
2144 CharDriverState *chr = opaque;
2145 NetCharDriver *s = chr->opaque;
2147 s->max_size = qemu_chr_be_can_write(chr);
2149 /* If there were any stray characters in the queue process them
2152 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2153 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2155 s->max_size = qemu_chr_be_can_write(chr);
2160 static void udp_chr_read(void *opaque)
2162 CharDriverState *chr = opaque;
2163 NetCharDriver *s = chr->opaque;
2165 if (s->max_size == 0)
2167 s->bufcnt = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0);
2168 s->bufptr = s->bufcnt;
2173 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2174 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2176 s->max_size = qemu_chr_be_can_write(chr);
2180 static void udp_chr_update_read_handler(CharDriverState *chr)
2182 NetCharDriver *s = chr->opaque;
2185 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
2186 udp_chr_read, NULL, chr);
2190 static void udp_chr_close(CharDriverState *chr)
2192 NetCharDriver *s = chr->opaque;
2194 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2198 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2201 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2203 CharDriverState *chr = NULL;
2204 NetCharDriver *s = NULL;
2205 Error *local_err = NULL;
2208 chr = g_malloc0(sizeof(CharDriverState));
2209 s = g_malloc0(sizeof(NetCharDriver));
2211 fd = inet_dgram_opts(opts, &local_err);
2220 chr->chr_write = udp_chr_write;
2221 chr->chr_update_read_handler = udp_chr_update_read_handler;
2222 chr->chr_close = udp_chr_close;
2227 qerror_report_err(local_err);
2228 error_free(local_err);
2238 /***********************************************************/
2239 /* TCP Net console */
2251 static void tcp_chr_accept(void *opaque);
2253 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2255 TCPCharDriver *s = chr->opaque;
2257 return send_all(s->fd, buf, len);
2259 /* XXX: indicate an error ? */
2264 static int tcp_chr_read_poll(void *opaque)
2266 CharDriverState *chr = opaque;
2267 TCPCharDriver *s = chr->opaque;
2270 s->max_size = qemu_chr_be_can_write(chr);
2275 #define IAC_BREAK 243
2276 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2278 uint8_t *buf, int *size)
2280 /* Handle any telnet client's basic IAC options to satisfy char by
2281 * char mode with no echo. All IAC options will be removed from
2282 * the buf and the do_telnetopt variable will be used to track the
2283 * state of the width of the IAC information.
2285 * IAC commands come in sets of 3 bytes with the exception of the
2286 * "IAC BREAK" command and the double IAC.
2292 for (i = 0; i < *size; i++) {
2293 if (s->do_telnetopt > 1) {
2294 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2295 /* Double IAC means send an IAC */
2299 s->do_telnetopt = 1;
2301 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2302 /* Handle IAC break commands by sending a serial break */
2303 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2308 if (s->do_telnetopt >= 4) {
2309 s->do_telnetopt = 1;
2312 if ((unsigned char)buf[i] == IAC) {
2313 s->do_telnetopt = 2;
2324 static int tcp_get_msgfd(CharDriverState *chr)
2326 TCPCharDriver *s = chr->opaque;
2333 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2335 TCPCharDriver *s = chr->opaque;
2336 struct cmsghdr *cmsg;
2338 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2341 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2342 cmsg->cmsg_level != SOL_SOCKET ||
2343 cmsg->cmsg_type != SCM_RIGHTS)
2346 fd = *((int *)CMSG_DATA(cmsg));
2350 #ifndef MSG_CMSG_CLOEXEC
2351 qemu_set_cloexec(fd);
2359 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2361 TCPCharDriver *s = chr->opaque;
2362 struct msghdr msg = { NULL, };
2363 struct iovec iov[1];
2365 struct cmsghdr cmsg;
2366 char control[CMSG_SPACE(sizeof(int))];
2371 iov[0].iov_base = buf;
2372 iov[0].iov_len = len;
2376 msg.msg_control = &msg_control;
2377 msg.msg_controllen = sizeof(msg_control);
2379 #ifdef MSG_CMSG_CLOEXEC
2380 flags |= MSG_CMSG_CLOEXEC;
2382 ret = recvmsg(s->fd, &msg, flags);
2383 if (ret > 0 && s->is_unix) {
2384 unix_process_msgfd(chr, &msg);
2390 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2392 TCPCharDriver *s = chr->opaque;
2393 return qemu_recv(s->fd, buf, len, 0);
2397 static void tcp_chr_read(void *opaque)
2399 CharDriverState *chr = opaque;
2400 TCPCharDriver *s = chr->opaque;
2401 uint8_t buf[READ_BUF_LEN];
2404 if (!s->connected || s->max_size <= 0)
2407 if (len > s->max_size)
2409 size = tcp_chr_recv(chr, (void *)buf, len);
2411 /* connection closed */
2413 if (s->listen_fd >= 0) {
2414 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2416 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2419 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2420 } else if (size > 0) {
2421 if (s->do_telnetopt)
2422 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2424 qemu_chr_be_write(chr, buf, size);
2429 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2431 return qemu_chr_open_fd(eventfd, eventfd);
2435 static void tcp_chr_connect(void *opaque)
2437 CharDriverState *chr = opaque;
2438 TCPCharDriver *s = chr->opaque;
2442 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2443 tcp_chr_read, NULL, chr);
2445 qemu_chr_generic_open(chr);
2448 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2449 static void tcp_chr_telnet_init(int fd)
2452 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2453 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2454 send(fd, (char *)buf, 3, 0);
2455 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2456 send(fd, (char *)buf, 3, 0);
2457 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2458 send(fd, (char *)buf, 3, 0);
2459 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2460 send(fd, (char *)buf, 3, 0);
2463 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2465 TCPCharDriver *s = chr->opaque;
2469 socket_set_nonblock(fd);
2471 socket_set_nodelay(fd);
2473 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
2474 tcp_chr_connect(chr);
2479 static void tcp_chr_accept(void *opaque)
2481 CharDriverState *chr = opaque;
2482 TCPCharDriver *s = chr->opaque;
2483 struct sockaddr_in saddr;
2485 struct sockaddr_un uaddr;
2487 struct sockaddr *addr;
2494 len = sizeof(uaddr);
2495 addr = (struct sockaddr *)&uaddr;
2499 len = sizeof(saddr);
2500 addr = (struct sockaddr *)&saddr;
2502 fd = qemu_accept(s->listen_fd, addr, &len);
2503 if (fd < 0 && errno != EINTR) {
2505 } else if (fd >= 0) {
2506 if (s->do_telnetopt)
2507 tcp_chr_telnet_init(fd);
2511 if (tcp_chr_add_client(chr, fd) < 0)
2515 static void tcp_chr_close(CharDriverState *chr)
2517 TCPCharDriver *s = chr->opaque;
2519 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2522 if (s->listen_fd >= 0) {
2523 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
2524 closesocket(s->listen_fd);
2527 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2530 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2531 bool is_listen, bool is_telnet,
2532 bool is_waitconnect,
2535 CharDriverState *chr = NULL;
2536 TCPCharDriver *s = NULL;
2537 char host[NI_MAXHOST], serv[NI_MAXSERV];
2538 const char *left = "", *right = "";
2539 struct sockaddr_storage ss;
2540 socklen_t ss_len = sizeof(ss);
2542 memset(&ss, 0, ss_len);
2543 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2544 error_setg(errp, "getsockname: %s", strerror(errno));
2548 chr = g_malloc0(sizeof(CharDriverState));
2549 s = g_malloc0(sizeof(TCPCharDriver));
2556 chr->filename = g_malloc(256);
2557 switch (ss.ss_family) {
2561 snprintf(chr->filename, 256, "unix:%s%s",
2562 ((struct sockaddr_un *)(&ss))->sun_path,
2563 is_listen ? ",server" : "");
2571 s->do_nodelay = do_nodelay;
2572 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2573 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2574 snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
2575 is_telnet ? "telnet" : "tcp",
2576 left, host, right, serv,
2577 is_listen ? ",server" : "");
2582 chr->chr_write = tcp_chr_write;
2583 chr->chr_close = tcp_chr_close;
2584 chr->get_msgfd = tcp_get_msgfd;
2585 chr->chr_add_client = tcp_chr_add_client;
2589 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2591 s->do_telnetopt = 1;
2596 socket_set_nodelay(fd);
2597 tcp_chr_connect(chr);
2600 if (is_listen && is_waitconnect) {
2601 printf("QEMU waiting for connection on: %s\n",
2603 tcp_chr_accept(chr);
2604 socket_set_nonblock(s->listen_fd);
2609 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2611 CharDriverState *chr = NULL;
2612 Error *local_err = NULL;
2620 is_listen = qemu_opt_get_bool(opts, "server", 0);
2621 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2622 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2623 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2624 is_unix = qemu_opt_get(opts, "path") != NULL;
2630 fd = unix_listen_opts(opts, &local_err);
2632 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2636 fd = inet_listen_opts(opts, 0, &local_err);
2638 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2645 if (!is_waitconnect)
2646 socket_set_nonblock(fd);
2648 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2649 is_waitconnect, &local_err);
2650 if (error_is_set(&local_err)) {
2658 qerror_report_err(local_err);
2659 error_free(local_err);
2665 g_free(chr->opaque);
2671 /***********************************************************/
2672 /* Memory chardev */
2675 size_t outbuf_capacity;
2679 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2681 MemoryDriver *d = chr->opaque;
2683 /* TODO: the QString implementation has the same code, we should
2684 * introduce a generic way to do this in cutils.c */
2685 if (d->outbuf_capacity < d->outbuf_size + len) {
2687 d->outbuf_capacity += len;
2688 d->outbuf_capacity *= 2;
2689 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2692 memcpy(d->outbuf + d->outbuf_size, buf, len);
2693 d->outbuf_size += len;
2698 void qemu_chr_init_mem(CharDriverState *chr)
2702 d = g_malloc(sizeof(*d));
2704 d->outbuf_capacity = 4096;
2705 d->outbuf = g_malloc0(d->outbuf_capacity);
2707 memset(chr, 0, sizeof(*chr));
2709 chr->chr_write = mem_chr_write;
2712 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2714 MemoryDriver *d = chr->opaque;
2715 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2718 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2719 void qemu_chr_close_mem(CharDriverState *chr)
2721 MemoryDriver *d = chr->opaque;
2724 g_free(chr->opaque);
2726 chr->chr_write = NULL;
2729 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2731 const MemoryDriver *d = chr->opaque;
2732 return d->outbuf_size;
2735 /*********************************************************/
2736 /* Ring buffer chardev */
2743 } RingBufCharDriver;
2745 static size_t ringbuf_count(const CharDriverState *chr)
2747 const RingBufCharDriver *d = chr->opaque;
2749 return d->prod - d->cons;
2752 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2754 RingBufCharDriver *d = chr->opaque;
2757 if (!buf || (len < 0)) {
2761 for (i = 0; i < len; i++ ) {
2762 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2763 if (d->prod - d->cons > d->size) {
2764 d->cons = d->prod - d->size;
2771 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2773 RingBufCharDriver *d = chr->opaque;
2776 for (i = 0; i < len && d->cons != d->prod; i++) {
2777 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2783 static void ringbuf_chr_close(struct CharDriverState *chr)
2785 RingBufCharDriver *d = chr->opaque;
2792 static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
2794 CharDriverState *chr;
2795 RingBufCharDriver *d;
2797 chr = g_malloc0(sizeof(CharDriverState));
2798 d = g_malloc(sizeof(*d));
2800 d->size = qemu_opt_get_size(opts, "size", 0);
2805 /* The size must be power of 2 */
2806 if (d->size & (d->size - 1)) {
2807 error_report("size of ringbuf device must be power of two");
2813 d->cbuf = g_malloc0(d->size);
2816 chr->chr_write = ringbuf_chr_write;
2817 chr->chr_close = ringbuf_chr_close;
2827 static bool chr_is_ringbuf(const CharDriverState *chr)
2829 return chr->chr_write == ringbuf_chr_write;
2832 void qmp_ringbuf_write(const char *device, const char *data,
2833 bool has_format, enum DataFormat format,
2836 CharDriverState *chr;
2837 const uint8_t *write_data;
2841 chr = qemu_chr_find(device);
2843 error_setg(errp, "Device '%s' not found", device);
2847 if (!chr_is_ringbuf(chr)) {
2848 error_setg(errp,"%s is not a ringbuf device", device);
2852 if (has_format && (format == DATA_FORMAT_BASE64)) {
2853 write_data = g_base64_decode(data, &write_count);
2855 write_data = (uint8_t *)data;
2856 write_count = strlen(data);
2859 ret = ringbuf_chr_write(chr, write_data, write_count);
2861 if (write_data != (uint8_t *)data) {
2862 g_free((void *)write_data);
2866 error_setg(errp, "Failed to write to device %s", device);
2871 char *qmp_ringbuf_read(const char *device, int64_t size,
2872 bool has_format, enum DataFormat format,
2875 CharDriverState *chr;
2880 chr = qemu_chr_find(device);
2882 error_setg(errp, "Device '%s' not found", device);
2886 if (!chr_is_ringbuf(chr)) {
2887 error_setg(errp,"%s is not a ringbuf device", device);
2892 error_setg(errp, "size must be greater than zero");
2896 count = ringbuf_count(chr);
2897 size = size > count ? count : size;
2898 read_data = g_malloc(size + 1);
2900 ringbuf_chr_read(chr, read_data, size);
2902 if (has_format && (format == DATA_FORMAT_BASE64)) {
2903 data = g_base64_encode(read_data, size);
2907 * FIXME should read only complete, valid UTF-8 characters up
2908 * to @size bytes. Invalid sequences should be replaced by a
2909 * suitable replacement character. Except when (and only
2910 * when) ring buffer lost characters since last read, initial
2911 * continuation characters should be dropped.
2913 read_data[size] = 0;
2914 data = (char *)read_data;
2920 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2922 char host[65], port[33], width[8], height[8];
2926 Error *local_err = NULL;
2928 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
2929 if (error_is_set(&local_err)) {
2930 qerror_report_err(local_err);
2931 error_free(local_err);
2935 if (strstart(filename, "mon:", &p)) {
2937 qemu_opt_set(opts, "mux", "on");
2940 if (strcmp(filename, "null") == 0 ||
2941 strcmp(filename, "pty") == 0 ||
2942 strcmp(filename, "msmouse") == 0 ||
2943 strcmp(filename, "braille") == 0 ||
2944 strcmp(filename, "stdio") == 0) {
2945 qemu_opt_set(opts, "backend", filename);
2948 if (strstart(filename, "vc", &p)) {
2949 qemu_opt_set(opts, "backend", "vc");
2951 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2953 qemu_opt_set(opts, "width", width);
2954 qemu_opt_set(opts, "height", height);
2955 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2957 qemu_opt_set(opts, "cols", width);
2958 qemu_opt_set(opts, "rows", height);
2965 if (strcmp(filename, "con:") == 0) {
2966 qemu_opt_set(opts, "backend", "console");
2969 if (strstart(filename, "COM", NULL)) {
2970 qemu_opt_set(opts, "backend", "serial");
2971 qemu_opt_set(opts, "path", filename);
2974 if (strstart(filename, "file:", &p)) {
2975 qemu_opt_set(opts, "backend", "file");
2976 qemu_opt_set(opts, "path", p);
2979 if (strstart(filename, "pipe:", &p)) {
2980 qemu_opt_set(opts, "backend", "pipe");
2981 qemu_opt_set(opts, "path", p);
2984 if (strstart(filename, "tcp:", &p) ||
2985 strstart(filename, "telnet:", &p)) {
2986 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2988 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2991 qemu_opt_set(opts, "backend", "socket");
2992 qemu_opt_set(opts, "host", host);
2993 qemu_opt_set(opts, "port", port);
2994 if (p[pos] == ',') {
2995 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2998 if (strstart(filename, "telnet:", &p))
2999 qemu_opt_set(opts, "telnet", "on");
3002 if (strstart(filename, "udp:", &p)) {
3003 qemu_opt_set(opts, "backend", "udp");
3004 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3006 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3010 qemu_opt_set(opts, "host", host);
3011 qemu_opt_set(opts, "port", port);
3012 if (p[pos] == '@') {
3014 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3016 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3020 qemu_opt_set(opts, "localaddr", host);
3021 qemu_opt_set(opts, "localport", port);
3025 if (strstart(filename, "unix:", &p)) {
3026 qemu_opt_set(opts, "backend", "socket");
3027 if (qemu_opts_do_parse(opts, p, "path") != 0)
3031 if (strstart(filename, "/dev/parport", NULL) ||
3032 strstart(filename, "/dev/ppi", NULL)) {
3033 qemu_opt_set(opts, "backend", "parport");
3034 qemu_opt_set(opts, "path", filename);
3037 if (strstart(filename, "/dev/", NULL)) {
3038 qemu_opt_set(opts, "backend", "tty");
3039 qemu_opt_set(opts, "path", filename);
3044 qemu_opts_del(opts);
3048 #ifdef HAVE_CHARDEV_PARPORT
3050 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
3052 const char *filename = qemu_opt_get(opts, "path");
3055 fd = qemu_open(filename, O_RDWR);
3059 return qemu_chr_open_pp_fd(fd);
3064 static const struct {
3066 CharDriverState *(*open)(QemuOpts *opts);
3067 } backend_table[] = {
3068 { .name = "null", .open = qemu_chr_open_null },
3069 { .name = "socket", .open = qemu_chr_open_socket },
3070 { .name = "udp", .open = qemu_chr_open_udp },
3071 { .name = "msmouse", .open = qemu_chr_open_msmouse },
3072 { .name = "vc", .open = vc_init },
3073 { .name = "memory", .open = qemu_chr_open_ringbuf },
3075 { .name = "file", .open = qemu_chr_open_win_file_out },
3076 { .name = "pipe", .open = qemu_chr_open_win_pipe },
3077 { .name = "console", .open = qemu_chr_open_win_con },
3078 { .name = "serial", .open = qemu_chr_open_win },
3079 { .name = "stdio", .open = qemu_chr_open_win_stdio },
3081 { .name = "file", .open = qemu_chr_open_file_out },
3082 { .name = "pipe", .open = qemu_chr_open_pipe },
3083 { .name = "stdio", .open = qemu_chr_open_stdio },
3085 #ifdef CONFIG_BRLAPI
3086 { .name = "braille", .open = chr_baum_init },
3088 #ifdef HAVE_CHARDEV_TTY
3089 { .name = "tty", .open = qemu_chr_open_tty },
3090 { .name = "serial", .open = qemu_chr_open_tty },
3091 { .name = "pty", .open = qemu_chr_open_pty },
3093 #ifdef HAVE_CHARDEV_PARPORT
3094 { .name = "parallel", .open = qemu_chr_open_pp },
3095 { .name = "parport", .open = qemu_chr_open_pp },
3098 { .name = "spicevmc", .open = qemu_chr_open_spice },
3099 #if SPICE_SERVER_VERSION >= 0x000c02
3100 { .name = "spiceport", .open = qemu_chr_open_spice_port },
3105 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3106 void (*init)(struct CharDriverState *s),
3109 CharDriverState *chr;
3112 if (qemu_opts_id(opts) == NULL) {
3113 error_setg(errp, "chardev: no id specified");
3117 if (qemu_opt_get(opts, "backend") == NULL) {
3118 error_setg(errp, "chardev: \"%s\" missing backend",
3119 qemu_opts_id(opts));
3122 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
3123 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
3126 if (i == ARRAY_SIZE(backend_table)) {
3127 error_setg(errp, "chardev: backend \"%s\" not found",
3128 qemu_opt_get(opts, "backend"));
3132 chr = backend_table[i].open(opts);
3134 error_setg(errp, "chardev: opening backend \"%s\" failed",
3135 qemu_opt_get(opts, "backend"));
3140 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3142 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3144 if (qemu_opt_get_bool(opts, "mux", 0)) {
3145 CharDriverState *base = chr;
3146 int len = strlen(qemu_opts_id(opts)) + 6;
3147 base->label = g_malloc(len);
3148 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3149 chr = qemu_chr_open_mux(base);
3150 chr->filename = base->filename;
3151 chr->avail_connections = MAX_MUX;
3152 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3154 chr->avail_connections = 1;
3156 chr->label = g_strdup(qemu_opts_id(opts));
3161 qemu_opts_del(opts);
3165 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3168 CharDriverState *chr;
3172 if (strstart(filename, "chardev:", &p)) {
3173 return qemu_chr_find(p);
3176 opts = qemu_chr_parse_compat(label, filename);
3180 chr = qemu_chr_new_from_opts(opts, init, &err);
3181 if (error_is_set(&err)) {
3182 fprintf(stderr, "%s\n", error_get_pretty(err));
3185 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3186 monitor_init(chr, MONITOR_USE_READLINE);
3191 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3193 if (chr->chr_set_echo) {
3194 chr->chr_set_echo(chr, echo);
3198 void qemu_chr_fe_open(struct CharDriverState *chr)
3200 if (chr->chr_guest_open) {
3201 chr->chr_guest_open(chr);
3205 void qemu_chr_fe_close(struct CharDriverState *chr)
3207 if (chr->chr_guest_close) {
3208 chr->chr_guest_close(chr);
3212 void qemu_chr_delete(CharDriverState *chr)
3214 QTAILQ_REMOVE(&chardevs, chr, next);
3215 if (chr->chr_close) {
3216 chr->chr_close(chr);
3218 g_free(chr->filename);
3221 qemu_opts_del(chr->opts);
3226 ChardevInfoList *qmp_query_chardev(Error **errp)
3228 ChardevInfoList *chr_list = NULL;
3229 CharDriverState *chr;
3231 QTAILQ_FOREACH(chr, &chardevs, next) {
3232 ChardevInfoList *info = g_malloc0(sizeof(*info));
3233 info->value = g_malloc0(sizeof(*info->value));
3234 info->value->label = g_strdup(chr->label);
3235 info->value->filename = g_strdup(chr->filename);
3237 info->next = chr_list;
3244 CharDriverState *qemu_chr_find(const char *name)
3246 CharDriverState *chr;
3248 QTAILQ_FOREACH(chr, &chardevs, next) {
3249 if (strcmp(chr->label, name) != 0)
3256 /* Get a character (serial) device interface. */
3257 CharDriverState *qemu_char_get_next_serial(void)
3259 static int next_serial;
3261 /* FIXME: This function needs to go away: use chardev properties! */
3262 return serial_hds[next_serial++];
3265 QemuOptsList qemu_chardev_opts = {
3267 .implied_opt_name = "backend",
3268 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3272 .type = QEMU_OPT_STRING,
3275 .type = QEMU_OPT_STRING,
3278 .type = QEMU_OPT_STRING,
3281 .type = QEMU_OPT_STRING,
3283 .name = "localaddr",
3284 .type = QEMU_OPT_STRING,
3286 .name = "localport",
3287 .type = QEMU_OPT_STRING,
3290 .type = QEMU_OPT_NUMBER,
3293 .type = QEMU_OPT_BOOL,
3296 .type = QEMU_OPT_BOOL,
3299 .type = QEMU_OPT_BOOL,
3302 .type = QEMU_OPT_BOOL,
3305 .type = QEMU_OPT_BOOL,
3308 .type = QEMU_OPT_BOOL,
3311 .type = QEMU_OPT_NUMBER,
3314 .type = QEMU_OPT_NUMBER,
3317 .type = QEMU_OPT_NUMBER,
3320 .type = QEMU_OPT_NUMBER,
3323 .type = QEMU_OPT_BOOL,
3326 .type = QEMU_OPT_BOOL,
3329 .type = QEMU_OPT_STRING,
3332 .type = QEMU_OPT_NUMBER,
3335 .type = QEMU_OPT_SIZE,
3337 { /* end of list */ }
3343 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3348 error_setg(errp, "input file not supported");
3352 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3353 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3354 if (out == INVALID_HANDLE_VALUE) {
3355 error_setg(errp, "open %s failed", file->out);
3358 return qemu_chr_open_win_file(out);
3361 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3364 return qemu_chr_open_win_path(serial->device);
3367 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3370 error_setg(errp, "character device backend type 'parallel' not supported");
3376 static int qmp_chardev_open_file_source(char *src, int flags,
3381 TFR(fd = qemu_open(src, flags, 0666));
3383 error_setg(errp, "open %s: %s", src, strerror(errno));
3388 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3390 int flags, in = -1, out = -1;
3392 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3393 out = qmp_chardev_open_file_source(file->out, flags, errp);
3394 if (error_is_set(errp)) {
3400 in = qmp_chardev_open_file_source(file->in, flags, errp);
3401 if (error_is_set(errp)) {
3407 return qemu_chr_open_fd(in, out);
3410 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3413 #ifdef HAVE_CHARDEV_TTY
3416 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3417 if (error_is_set(errp)) {
3420 socket_set_nonblock(fd);
3421 return qemu_chr_open_tty_fd(fd);
3423 error_setg(errp, "character device backend type 'serial' not supported");
3428 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3431 #ifdef HAVE_CHARDEV_PARPORT
3434 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3435 if (error_is_set(errp)) {
3438 return qemu_chr_open_pp_fd(fd);
3440 error_setg(errp, "character device backend type 'parallel' not supported");
3447 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3450 SocketAddress *addr = sock->addr;
3451 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3452 bool is_listen = sock->has_server ? sock->server : true;
3453 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3454 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3458 fd = socket_listen(addr, errp);
3460 fd = socket_connect(addr, errp, NULL, NULL);
3462 if (error_is_set(errp)) {
3465 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3466 is_telnet, is_waitconnect, errp);
3469 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3472 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3473 CharDriverState *chr = NULL;
3475 chr = qemu_chr_find(id);
3477 error_setg(errp, "Chardev '%s' already exists", id);
3482 switch (backend->kind) {
3483 case CHARDEV_BACKEND_KIND_FILE:
3484 chr = qmp_chardev_open_file(backend->file, errp);
3486 case CHARDEV_BACKEND_KIND_SERIAL:
3487 chr = qmp_chardev_open_serial(backend->serial, errp);
3489 case CHARDEV_BACKEND_KIND_PARALLEL:
3490 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3492 case CHARDEV_BACKEND_KIND_SOCKET:
3493 chr = qmp_chardev_open_socket(backend->socket, errp);
3495 #ifdef HAVE_CHARDEV_TTY
3496 case CHARDEV_BACKEND_KIND_PTY:
3498 /* qemu_chr_open_pty sets "path" in opts */
3500 opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
3501 chr = qemu_chr_open_pty(opts);
3502 ret->pty = g_strdup(qemu_opt_get(opts, "path"));
3503 ret->has_pty = true;
3504 qemu_opts_del(opts);
3508 case CHARDEV_BACKEND_KIND_NULL:
3509 chr = qemu_chr_open_null(NULL);
3512 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3516 if (chr == NULL && !error_is_set(errp)) {
3517 error_setg(errp, "Failed to create chardev");
3520 chr->label = g_strdup(id);
3521 chr->avail_connections = 1;
3522 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3530 void qmp_chardev_remove(const char *id, Error **errp)
3532 CharDriverState *chr;
3534 chr = qemu_chr_find(id);
3536 error_setg(errp, "Chardev '%s' not found", id);
3539 if (chr->chr_can_read || chr->chr_read ||
3540 chr->chr_event || chr->handler_opaque) {
3541 error_setg(errp, "Chardev '%s' is busy", id);
3544 qemu_chr_delete(chr);