4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu-common.h"
25 #include "monitor/monitor.h"
26 #include "ui/console.h"
27 #include "sysemu/sysemu.h"
28 #include "qemu/timer.h"
29 #include "sysemu/char.h"
31 #include "qmp-commands.h"
41 #include <sys/times.h>
45 #include <sys/ioctl.h>
46 #include <sys/resource.h>
47 #include <sys/socket.h>
48 #include <netinet/in.h>
50 #include <arpa/inet.h>
53 #include <sys/select.h>
56 #if defined(__GLIBC__)
58 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
63 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
64 #include <dev/ppbus/ppi.h>
65 #include <dev/ppbus/ppbconf.h>
66 #elif defined(__DragonFly__)
67 #include <dev/misc/ppi/ppi.h>
68 #include <bus/ppbus/ppbconf.h>
74 #include <linux/ppdev.h>
75 #include <linux/parport.h>
79 #include <sys/ethernet.h>
80 #include <sys/sockio.h>
81 #include <netinet/arp.h>
82 #include <netinet/in.h>
83 #include <netinet/in_systm.h>
84 #include <netinet/ip.h>
85 #include <netinet/ip_icmp.h> // must come after ip.h
86 #include <netinet/udp.h>
87 #include <netinet/tcp.h>
95 #include "qemu/sockets.h"
96 #include "ui/qemu-spice.h"
98 #define READ_BUF_LEN 4096
100 /***********************************************************/
101 /* character device */
103 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
104 QTAILQ_HEAD_INITIALIZER(chardevs);
106 void qemu_chr_be_event(CharDriverState *s, int event)
108 /* Keep track if the char device is open */
110 case CHR_EVENT_OPENED:
113 case CHR_EVENT_CLOSED:
120 s->chr_event(s->handler_opaque, event);
123 static gboolean qemu_chr_be_generic_open_bh(gpointer opaque)
125 CharDriverState *s = opaque;
126 qemu_chr_be_event(s, CHR_EVENT_OPENED);
131 void qemu_chr_be_generic_open(CharDriverState *s)
133 if (s->idle_tag == 0) {
134 s->idle_tag = g_idle_add(qemu_chr_be_generic_open_bh, s);
138 int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
140 return s->chr_write(s, buf, len);
143 int qemu_chr_fe_write_all(CharDriverState *s, const uint8_t *buf, int len)
148 while (offset < len) {
150 res = s->chr_write(s, buf + offset, len - offset);
151 if (res == -1 && errno == EAGAIN) {
154 } while (res == -1 && errno == EAGAIN);
170 int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
174 return s->chr_ioctl(s, cmd, arg);
177 int qemu_chr_be_can_write(CharDriverState *s)
179 if (!s->chr_can_read)
181 return s->chr_can_read(s->handler_opaque);
184 void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
187 s->chr_read(s->handler_opaque, buf, len);
191 int qemu_chr_fe_get_msgfd(CharDriverState *s)
193 return s->get_msgfd ? s->get_msgfd(s) : -1;
196 int qemu_chr_add_client(CharDriverState *s, int fd)
198 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
201 void qemu_chr_accept_input(CharDriverState *s)
203 if (s->chr_accept_input)
204 s->chr_accept_input(s);
208 void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
210 char buf[READ_BUF_LEN];
213 vsnprintf(buf, sizeof(buf), fmt, ap);
214 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
218 void qemu_chr_add_handlers(CharDriverState *s,
219 IOCanReadHandler *fd_can_read,
220 IOReadHandler *fd_read,
221 IOEventHandler *fd_event,
226 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
231 s->chr_can_read = fd_can_read;
232 s->chr_read = fd_read;
233 s->chr_event = fd_event;
234 s->handler_opaque = opaque;
235 if (s->chr_update_read_handler)
236 s->chr_update_read_handler(s);
238 if (!s->explicit_fe_open) {
239 qemu_chr_fe_set_open(s, fe_open);
242 /* We're connecting to an already opened device, so let's make sure we
243 also get the open event */
244 if (fe_open && s->be_open) {
245 qemu_chr_be_generic_open(s);
249 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
254 static CharDriverState *qemu_chr_open_null(void)
256 CharDriverState *chr;
258 chr = g_malloc0(sizeof(CharDriverState));
259 chr->chr_write = null_chr_write;
263 /* MUX driver for serial I/O splitting */
265 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
266 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
268 IOCanReadHandler *chr_can_read[MAX_MUX];
269 IOReadHandler *chr_read[MAX_MUX];
270 IOEventHandler *chr_event[MAX_MUX];
271 void *ext_opaque[MAX_MUX];
272 CharDriverState *drv;
277 /* Intermediate input buffer allows to catch escape sequences even if the
278 currently active device is not accepting any input - but only until it
280 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
285 int64_t timestamps_start;
289 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
291 MuxDriver *d = chr->opaque;
293 if (!d->timestamps) {
294 ret = d->drv->chr_write(d->drv, buf, len);
299 for (i = 0; i < len; i++) {
305 ti = qemu_get_clock_ms(rt_clock);
306 if (d->timestamps_start == -1)
307 d->timestamps_start = ti;
308 ti -= d->timestamps_start;
310 snprintf(buf1, sizeof(buf1),
311 "[%02d:%02d:%02d.%03d] ",
316 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
319 ret += d->drv->chr_write(d->drv, buf+i, 1);
320 if (buf[i] == '\n') {
328 static const char * const mux_help[] = {
329 "% h print this help\n\r",
330 "% x exit emulator\n\r",
331 "% s save disk data back to file (if -snapshot)\n\r",
332 "% t toggle console timestamps\n\r"
333 "% b send break (magic sysrq)\n\r",
334 "% c switch between console and monitor\n\r",
339 int term_escape_char = 0x01; /* ctrl-a is used for escape */
340 static void mux_print_help(CharDriverState *chr)
343 char ebuf[15] = "Escape-Char";
344 char cbuf[50] = "\n\r";
346 if (term_escape_char > 0 && term_escape_char < 26) {
347 snprintf(cbuf, sizeof(cbuf), "\n\r");
348 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
350 snprintf(cbuf, sizeof(cbuf),
351 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
354 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
355 for (i = 0; mux_help[i] != NULL; i++) {
356 for (j=0; mux_help[i][j] != '\0'; j++) {
357 if (mux_help[i][j] == '%')
358 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
360 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
365 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
367 if (d->chr_event[mux_nr])
368 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
371 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
373 if (d->term_got_escape) {
374 d->term_got_escape = 0;
375 if (ch == term_escape_char)
384 const char *term = "QEMU: Terminated\n\r";
385 chr->chr_write(chr,(uint8_t *)term,strlen(term));
393 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
396 /* Switch to the next registered device */
397 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
399 if (d->focus >= d->mux_cnt)
401 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
404 d->timestamps = !d->timestamps;
405 d->timestamps_start = -1;
409 } else if (ch == term_escape_char) {
410 d->term_got_escape = 1;
418 static void mux_chr_accept_input(CharDriverState *chr)
420 MuxDriver *d = chr->opaque;
423 while (d->prod[m] != d->cons[m] &&
424 d->chr_can_read[m] &&
425 d->chr_can_read[m](d->ext_opaque[m])) {
426 d->chr_read[m](d->ext_opaque[m],
427 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
431 static int mux_chr_can_read(void *opaque)
433 CharDriverState *chr = opaque;
434 MuxDriver *d = chr->opaque;
437 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
439 if (d->chr_can_read[m])
440 return d->chr_can_read[m](d->ext_opaque[m]);
444 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
446 CharDriverState *chr = opaque;
447 MuxDriver *d = chr->opaque;
451 mux_chr_accept_input (opaque);
453 for(i = 0; i < size; i++)
454 if (mux_proc_byte(chr, d, buf[i])) {
455 if (d->prod[m] == d->cons[m] &&
456 d->chr_can_read[m] &&
457 d->chr_can_read[m](d->ext_opaque[m]))
458 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
460 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
464 static void mux_chr_event(void *opaque, int event)
466 CharDriverState *chr = opaque;
467 MuxDriver *d = chr->opaque;
470 /* Send the event to all registered listeners */
471 for (i = 0; i < d->mux_cnt; i++)
472 mux_chr_send_event(d, i, event);
475 static void mux_chr_update_read_handler(CharDriverState *chr)
477 MuxDriver *d = chr->opaque;
479 if (d->mux_cnt >= MAX_MUX) {
480 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
483 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
484 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
485 d->chr_read[d->mux_cnt] = chr->chr_read;
486 d->chr_event[d->mux_cnt] = chr->chr_event;
487 /* Fix up the real driver with mux routines */
488 if (d->mux_cnt == 0) {
489 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
492 if (d->focus != -1) {
493 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
495 d->focus = d->mux_cnt;
497 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
500 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
502 CharDriverState *chr;
505 chr = g_malloc0(sizeof(CharDriverState));
506 d = g_malloc0(sizeof(MuxDriver));
511 chr->chr_write = mux_chr_write;
512 chr->chr_update_read_handler = mux_chr_update_read_handler;
513 chr->chr_accept_input = mux_chr_accept_input;
514 /* Frontend guest-open / -close notification is not support with muxes */
515 chr->chr_set_fe_open = NULL;
517 /* Muxes are always open on creation */
518 qemu_chr_be_generic_open(chr);
525 int send_all(int fd, const void *buf, int len1)
531 ret = send(fd, buf, len, 0);
533 errno = WSAGetLastError();
534 if (errno != WSAEWOULDBLOCK) {
537 } else if (ret == 0) {
549 int send_all(int fd, const void *_buf, int len1)
552 const uint8_t *buf = _buf;
556 ret = write(fd, buf, len);
558 if (errno != EINTR && errno != EAGAIN)
560 } else if (ret == 0) {
570 int recv_all(int fd, void *_buf, int len1, bool single_read)
576 while ((len > 0) && (ret = read(fd, buf, len)) != 0) {
578 if (errno != EINTR && errno != EAGAIN) {
595 typedef struct IOWatchPoll
602 IOCanReadHandler *fd_can_read;
607 static IOWatchPoll *io_watch_poll_from_source(GSource *source)
609 return container_of(source, IOWatchPoll, parent);
612 static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
614 IOWatchPoll *iwp = io_watch_poll_from_source(source);
615 bool now_active = iwp->fd_can_read(iwp->opaque) > 0;
616 bool was_active = iwp->src != NULL;
617 if (was_active == now_active) {
622 iwp->src = g_io_create_watch(iwp->channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
623 g_source_set_callback(iwp->src, iwp->fd_read, iwp->opaque, NULL);
624 g_source_attach(iwp->src, NULL);
626 g_source_destroy(iwp->src);
627 g_source_unref(iwp->src);
633 static gboolean io_watch_poll_check(GSource *source)
638 static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
644 static void io_watch_poll_finalize(GSource *source)
646 IOWatchPoll *iwp = io_watch_poll_from_source(source);
648 g_source_destroy(iwp->src);
649 g_source_unref(iwp->src);
654 static GSourceFuncs io_watch_poll_funcs = {
655 .prepare = io_watch_poll_prepare,
656 .check = io_watch_poll_check,
657 .dispatch = io_watch_poll_dispatch,
658 .finalize = io_watch_poll_finalize,
661 /* Can only be used for read */
662 static guint io_add_watch_poll(GIOChannel *channel,
663 IOCanReadHandler *fd_can_read,
670 iwp = (IOWatchPoll *) g_source_new(&io_watch_poll_funcs, sizeof(IOWatchPoll));
671 iwp->fd_can_read = fd_can_read;
672 iwp->opaque = user_data;
673 iwp->channel = channel;
674 iwp->fd_read = (GSourceFunc) fd_read;
677 tag = g_source_attach(&iwp->parent, NULL);
678 g_source_unref(&iwp->parent);
683 static GIOChannel *io_channel_from_fd(int fd)
691 chan = g_io_channel_unix_new(fd);
693 g_io_channel_set_encoding(chan, NULL, NULL);
694 g_io_channel_set_buffered(chan, FALSE);
700 static GIOChannel *io_channel_from_socket(int fd)
709 chan = g_io_channel_win32_new_socket(fd);
711 chan = g_io_channel_unix_new(fd);
714 g_io_channel_set_encoding(chan, NULL, NULL);
715 g_io_channel_set_buffered(chan, FALSE);
720 static int io_channel_send(GIOChannel *fd, const void *buf, size_t len)
726 while (offset < len) {
729 status = g_io_channel_write_chars(fd, buf + offset, len - offset,
730 &bytes_written, NULL);
731 if (status != G_IO_STATUS_NORMAL) {
732 if (status == G_IO_STATUS_AGAIN) {
733 /* If we've written any data, return a partial write. */
743 } else if (status == G_IO_STATUS_EOF) {
747 offset += bytes_written;
755 typedef struct FDCharDriver {
756 CharDriverState *chr;
757 GIOChannel *fd_in, *fd_out;
760 QTAILQ_ENTRY(FDCharDriver) node;
763 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
765 FDCharDriver *s = chr->opaque;
767 return io_channel_send(s->fd_out, buf, len);
770 static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
772 CharDriverState *chr = opaque;
773 FDCharDriver *s = chr->opaque;
775 uint8_t buf[READ_BUF_LEN];
780 if (len > s->max_size) {
787 status = g_io_channel_read_chars(chan, (gchar *)buf,
788 len, &bytes_read, NULL);
789 if (status == G_IO_STATUS_EOF) {
791 g_source_remove(s->fd_in_tag);
794 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
797 if (status == G_IO_STATUS_NORMAL) {
798 qemu_chr_be_write(chr, buf, bytes_read);
804 static int fd_chr_read_poll(void *opaque)
806 CharDriverState *chr = opaque;
807 FDCharDriver *s = chr->opaque;
809 s->max_size = qemu_chr_be_can_write(chr);
813 static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
815 FDCharDriver *s = chr->opaque;
816 return g_io_create_watch(s->fd_out, cond);
819 static void fd_chr_update_read_handler(CharDriverState *chr)
821 FDCharDriver *s = chr->opaque;
824 g_source_remove(s->fd_in_tag);
829 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
833 static void fd_chr_close(struct CharDriverState *chr)
835 FDCharDriver *s = chr->opaque;
838 g_source_remove(s->fd_in_tag);
843 g_io_channel_unref(s->fd_in);
846 g_io_channel_unref(s->fd_out);
850 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
853 /* open a character device to a unix fd */
854 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
856 CharDriverState *chr;
859 chr = g_malloc0(sizeof(CharDriverState));
860 s = g_malloc0(sizeof(FDCharDriver));
861 s->fd_in = io_channel_from_fd(fd_in);
862 s->fd_out = io_channel_from_fd(fd_out);
863 fcntl(fd_out, F_SETFL, O_NONBLOCK);
866 chr->chr_add_watch = fd_chr_add_watch;
867 chr->chr_write = fd_chr_write;
868 chr->chr_update_read_handler = fd_chr_update_read_handler;
869 chr->chr_close = fd_chr_close;
871 qemu_chr_be_generic_open(chr);
876 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
879 char filename_in[256], filename_out[256];
880 const char *filename = opts->device;
882 if (filename == NULL) {
883 fprintf(stderr, "chardev: pipe: no filename given\n");
887 snprintf(filename_in, 256, "%s.in", filename);
888 snprintf(filename_out, 256, "%s.out", filename);
889 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
890 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
891 if (fd_in < 0 || fd_out < 0) {
896 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
901 return qemu_chr_open_fd(fd_in, fd_out);
904 /* init terminal so that we can grab keys */
905 static struct termios oldtty;
906 static int old_fd0_flags;
907 static bool stdio_allow_signal;
909 static void term_exit(void)
911 tcsetattr (0, TCSANOW, &oldtty);
912 fcntl(0, F_SETFL, old_fd0_flags);
915 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
921 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
922 |INLCR|IGNCR|ICRNL|IXON);
923 tty.c_oflag |= OPOST;
924 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
925 tty.c_cflag &= ~(CSIZE|PARENB);
930 /* if graphical mode, we allow Ctrl-C handling */
931 if (!stdio_allow_signal)
932 tty.c_lflag &= ~ISIG;
934 tcsetattr (0, TCSANOW, &tty);
937 static void qemu_chr_close_stdio(struct CharDriverState *chr)
943 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
945 CharDriverState *chr;
947 if (is_daemonized()) {
948 error_report("cannot use stdio with -daemonize");
951 old_fd0_flags = fcntl(0, F_GETFL);
952 tcgetattr (0, &oldtty);
953 fcntl(0, F_SETFL, O_NONBLOCK);
956 chr = qemu_chr_open_fd(0, 1);
957 chr->chr_close = qemu_chr_close_stdio;
958 chr->chr_set_echo = qemu_chr_set_echo_stdio;
959 stdio_allow_signal = display_type != DT_NOGRAPHIC;
960 if (opts->has_signal) {
961 stdio_allow_signal = opts->signal;
963 qemu_chr_fe_set_echo(chr, false);
969 /* Once Solaris has openpty(), this is going to be removed. */
970 static int openpty(int *amaster, int *aslave, char *name,
971 struct termios *termp, struct winsize *winp)
974 int mfd = -1, sfd = -1;
976 *amaster = *aslave = -1;
978 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
982 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
985 if ((slave = ptsname(mfd)) == NULL)
988 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
991 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
992 (termp != NULL && tcgetattr(sfd, termp) < 0))
1000 ioctl(sfd, TIOCSWINSZ, winp);
1011 static void cfmakeraw (struct termios *termios_p)
1013 termios_p->c_iflag &=
1014 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
1015 termios_p->c_oflag &= ~OPOST;
1016 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
1017 termios_p->c_cflag &= ~(CSIZE|PARENB);
1018 termios_p->c_cflag |= CS8;
1020 termios_p->c_cc[VMIN] = 0;
1021 termios_p->c_cc[VTIME] = 0;
1025 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1026 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1027 || defined(__GLIBC__)
1029 #define HAVE_CHARDEV_TTY 1
1039 static void pty_chr_update_read_handler(CharDriverState *chr);
1040 static void pty_chr_state(CharDriverState *chr, int connected);
1042 static gboolean pty_chr_timer(gpointer opaque)
1044 struct CharDriverState *chr = opaque;
1045 PtyCharDriver *s = chr->opaque;
1052 pty_chr_update_read_handler(chr);
1058 static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1060 PtyCharDriver *s = chr->opaque;
1063 g_source_remove(s->timer_tag);
1068 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1070 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1074 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1076 PtyCharDriver *s = chr->opaque;
1078 if (!s->connected) {
1079 /* guest sends data, check for (re-)connect */
1080 pty_chr_update_read_handler(chr);
1083 return io_channel_send(s->fd, buf, len);
1086 static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1088 PtyCharDriver *s = chr->opaque;
1089 return g_io_create_watch(s->fd, cond);
1092 static int pty_chr_read_poll(void *opaque)
1094 CharDriverState *chr = opaque;
1095 PtyCharDriver *s = chr->opaque;
1097 s->read_bytes = qemu_chr_be_can_write(chr);
1098 return s->read_bytes;
1101 static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
1103 CharDriverState *chr = opaque;
1104 PtyCharDriver *s = chr->opaque;
1106 uint8_t buf[READ_BUF_LEN];
1110 if (len > s->read_bytes)
1111 len = s->read_bytes;
1115 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1116 if (status != G_IO_STATUS_NORMAL) {
1117 pty_chr_state(chr, 0);
1120 pty_chr_state(chr, 1);
1121 qemu_chr_be_write(chr, buf, size);
1126 static void pty_chr_update_read_handler(CharDriverState *chr)
1128 PtyCharDriver *s = chr->opaque;
1131 pfd.fd = g_io_channel_unix_get_fd(s->fd);
1132 pfd.events = G_IO_OUT;
1135 if (pfd.revents & G_IO_HUP) {
1136 pty_chr_state(chr, 0);
1138 pty_chr_state(chr, 1);
1142 static void pty_chr_state(CharDriverState *chr, int connected)
1144 PtyCharDriver *s = chr->opaque;
1148 g_source_remove(s->fd_tag);
1152 /* (re-)connect poll interval for idle guests: once per second.
1153 * We check more frequently in case the guests sends data to
1154 * the virtual device linked to our pty. */
1155 pty_chr_rearm_timer(chr, 1000);
1158 g_source_remove(s->timer_tag);
1161 if (!s->connected) {
1162 qemu_chr_be_generic_open(chr);
1164 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
1170 static void pty_chr_close(struct CharDriverState *chr)
1172 PtyCharDriver *s = chr->opaque;
1176 g_source_remove(s->fd_tag);
1179 fd = g_io_channel_unix_get_fd(s->fd);
1180 g_io_channel_unref(s->fd);
1183 g_source_remove(s->timer_tag);
1187 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1190 static CharDriverState *qemu_chr_open_pty(const char *id,
1193 CharDriverState *chr;
1196 int master_fd, slave_fd;
1197 #if defined(__OpenBSD__) || defined(__DragonFly__)
1198 char pty_name[PATH_MAX];
1199 #define q_ptsname(x) pty_name
1201 char *pty_name = NULL;
1202 #define q_ptsname(x) ptsname(x)
1205 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1209 /* Set raw attributes on the pty. */
1210 tcgetattr(slave_fd, &tty);
1212 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1215 chr = g_malloc0(sizeof(CharDriverState));
1217 chr->filename = g_strdup_printf("pty:%s", q_ptsname(master_fd));
1218 ret->pty = g_strdup(q_ptsname(master_fd));
1219 ret->has_pty = true;
1221 fprintf(stderr, "char device redirected to %s (label %s)\n",
1222 q_ptsname(master_fd), id);
1224 s = g_malloc0(sizeof(PtyCharDriver));
1226 chr->chr_write = pty_chr_write;
1227 chr->chr_update_read_handler = pty_chr_update_read_handler;
1228 chr->chr_close = pty_chr_close;
1229 chr->chr_add_watch = pty_chr_add_watch;
1231 s->fd = io_channel_from_fd(master_fd);
1237 static void tty_serial_init(int fd, int speed,
1238 int parity, int data_bits, int stop_bits)
1244 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1245 speed, parity, data_bits, stop_bits);
1247 tcgetattr (fd, &tty);
1249 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1250 speed = speed * 10 / 11;
1267 /* Non-Posix values follow. They may be unsupported on some systems. */
1269 check_speed(115200);
1271 check_speed(230400);
1274 check_speed(460800);
1277 check_speed(500000);
1280 check_speed(576000);
1283 check_speed(921600);
1286 check_speed(1000000);
1289 check_speed(1152000);
1292 check_speed(1500000);
1295 check_speed(2000000);
1298 check_speed(2500000);
1301 check_speed(3000000);
1304 check_speed(3500000);
1307 check_speed(4000000);
1312 cfsetispeed(&tty, spd);
1313 cfsetospeed(&tty, spd);
1315 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1316 |INLCR|IGNCR|ICRNL|IXON);
1317 tty.c_oflag |= OPOST;
1318 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1319 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1340 tty.c_cflag |= PARENB;
1343 tty.c_cflag |= PARENB | PARODD;
1347 tty.c_cflag |= CSTOPB;
1349 tcsetattr (fd, TCSANOW, &tty);
1352 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1354 FDCharDriver *s = chr->opaque;
1357 case CHR_IOCTL_SERIAL_SET_PARAMS:
1359 QEMUSerialSetParams *ssp = arg;
1360 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1361 ssp->speed, ssp->parity,
1362 ssp->data_bits, ssp->stop_bits);
1365 case CHR_IOCTL_SERIAL_SET_BREAK:
1367 int enable = *(int *)arg;
1369 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1373 case CHR_IOCTL_SERIAL_GET_TIOCM:
1376 int *targ = (int *)arg;
1377 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1379 if (sarg & TIOCM_CTS)
1380 *targ |= CHR_TIOCM_CTS;
1381 if (sarg & TIOCM_CAR)
1382 *targ |= CHR_TIOCM_CAR;
1383 if (sarg & TIOCM_DSR)
1384 *targ |= CHR_TIOCM_DSR;
1385 if (sarg & TIOCM_RI)
1386 *targ |= CHR_TIOCM_RI;
1387 if (sarg & TIOCM_DTR)
1388 *targ |= CHR_TIOCM_DTR;
1389 if (sarg & TIOCM_RTS)
1390 *targ |= CHR_TIOCM_RTS;
1393 case CHR_IOCTL_SERIAL_SET_TIOCM:
1395 int sarg = *(int *)arg;
1397 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1398 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1399 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1400 if (sarg & CHR_TIOCM_CTS)
1402 if (sarg & CHR_TIOCM_CAR)
1404 if (sarg & CHR_TIOCM_DSR)
1406 if (sarg & CHR_TIOCM_RI)
1408 if (sarg & CHR_TIOCM_DTR)
1410 if (sarg & CHR_TIOCM_RTS)
1412 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1421 static void qemu_chr_close_tty(CharDriverState *chr)
1423 FDCharDriver *s = chr->opaque;
1427 fd = g_io_channel_unix_get_fd(s->fd_in);
1437 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1439 CharDriverState *chr;
1441 tty_serial_init(fd, 115200, 'N', 8, 1);
1442 chr = qemu_chr_open_fd(fd, fd);
1443 chr->chr_ioctl = tty_serial_ioctl;
1444 chr->chr_close = qemu_chr_close_tty;
1447 #endif /* __linux__ || __sun__ */
1449 #if defined(__linux__)
1451 #define HAVE_CHARDEV_PARPORT 1
1456 } ParallelCharDriver;
1458 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1460 if (s->mode != mode) {
1462 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1469 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1471 ParallelCharDriver *drv = chr->opaque;
1476 case CHR_IOCTL_PP_READ_DATA:
1477 if (ioctl(fd, PPRDATA, &b) < 0)
1479 *(uint8_t *)arg = b;
1481 case CHR_IOCTL_PP_WRITE_DATA:
1482 b = *(uint8_t *)arg;
1483 if (ioctl(fd, PPWDATA, &b) < 0)
1486 case CHR_IOCTL_PP_READ_CONTROL:
1487 if (ioctl(fd, PPRCONTROL, &b) < 0)
1489 /* Linux gives only the lowest bits, and no way to know data
1490 direction! For better compatibility set the fixed upper
1492 *(uint8_t *)arg = b | 0xc0;
1494 case CHR_IOCTL_PP_WRITE_CONTROL:
1495 b = *(uint8_t *)arg;
1496 if (ioctl(fd, PPWCONTROL, &b) < 0)
1499 case CHR_IOCTL_PP_READ_STATUS:
1500 if (ioctl(fd, PPRSTATUS, &b) < 0)
1502 *(uint8_t *)arg = b;
1504 case CHR_IOCTL_PP_DATA_DIR:
1505 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1508 case CHR_IOCTL_PP_EPP_READ_ADDR:
1509 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1510 struct ParallelIOArg *parg = arg;
1511 int n = read(fd, parg->buffer, parg->count);
1512 if (n != parg->count) {
1517 case CHR_IOCTL_PP_EPP_READ:
1518 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1519 struct ParallelIOArg *parg = arg;
1520 int n = read(fd, parg->buffer, parg->count);
1521 if (n != parg->count) {
1526 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1527 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1528 struct ParallelIOArg *parg = arg;
1529 int n = write(fd, parg->buffer, parg->count);
1530 if (n != parg->count) {
1535 case CHR_IOCTL_PP_EPP_WRITE:
1536 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1537 struct ParallelIOArg *parg = arg;
1538 int n = write(fd, parg->buffer, parg->count);
1539 if (n != parg->count) {
1550 static void pp_close(CharDriverState *chr)
1552 ParallelCharDriver *drv = chr->opaque;
1555 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1556 ioctl(fd, PPRELEASE);
1559 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1562 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1564 CharDriverState *chr;
1565 ParallelCharDriver *drv;
1567 if (ioctl(fd, PPCLAIM) < 0) {
1572 drv = g_malloc0(sizeof(ParallelCharDriver));
1574 drv->mode = IEEE1284_MODE_COMPAT;
1576 chr = g_malloc0(sizeof(CharDriverState));
1577 chr->chr_write = null_chr_write;
1578 chr->chr_ioctl = pp_ioctl;
1579 chr->chr_close = pp_close;
1582 qemu_chr_be_generic_open(chr);
1586 #endif /* __linux__ */
1588 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1590 #define HAVE_CHARDEV_PARPORT 1
1592 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1594 int fd = (int)(intptr_t)chr->opaque;
1598 case CHR_IOCTL_PP_READ_DATA:
1599 if (ioctl(fd, PPIGDATA, &b) < 0)
1601 *(uint8_t *)arg = b;
1603 case CHR_IOCTL_PP_WRITE_DATA:
1604 b = *(uint8_t *)arg;
1605 if (ioctl(fd, PPISDATA, &b) < 0)
1608 case CHR_IOCTL_PP_READ_CONTROL:
1609 if (ioctl(fd, PPIGCTRL, &b) < 0)
1611 *(uint8_t *)arg = b;
1613 case CHR_IOCTL_PP_WRITE_CONTROL:
1614 b = *(uint8_t *)arg;
1615 if (ioctl(fd, PPISCTRL, &b) < 0)
1618 case CHR_IOCTL_PP_READ_STATUS:
1619 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1621 *(uint8_t *)arg = b;
1629 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1631 CharDriverState *chr;
1633 chr = g_malloc0(sizeof(CharDriverState));
1634 chr->opaque = (void *)(intptr_t)fd;
1635 chr->chr_write = null_chr_write;
1636 chr->chr_ioctl = pp_ioctl;
1645 HANDLE hcom, hrecv, hsend;
1646 OVERLAPPED orecv, osend;
1653 HANDLE hInputReadyEvent;
1654 HANDLE hInputDoneEvent;
1655 HANDLE hInputThread;
1656 uint8_t win_stdio_buf;
1657 } WinStdioCharState;
1659 #define NSENDBUF 2048
1660 #define NRECVBUF 2048
1661 #define MAXCONNECT 1
1662 #define NTIMEOUT 5000
1664 static int win_chr_poll(void *opaque);
1665 static int win_chr_pipe_poll(void *opaque);
1667 static void win_chr_close(CharDriverState *chr)
1669 WinCharState *s = chr->opaque;
1672 CloseHandle(s->hsend);
1676 CloseHandle(s->hrecv);
1680 CloseHandle(s->hcom);
1684 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1686 qemu_del_polling_cb(win_chr_poll, chr);
1688 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1691 static int win_chr_init(CharDriverState *chr, const char *filename)
1693 WinCharState *s = chr->opaque;
1695 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1700 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1702 fprintf(stderr, "Failed CreateEvent\n");
1705 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1707 fprintf(stderr, "Failed CreateEvent\n");
1711 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1712 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1713 if (s->hcom == INVALID_HANDLE_VALUE) {
1714 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1719 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1720 fprintf(stderr, "Failed SetupComm\n");
1724 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1725 size = sizeof(COMMCONFIG);
1726 GetDefaultCommConfig(filename, &comcfg, &size);
1727 comcfg.dcb.DCBlength = sizeof(DCB);
1728 CommConfigDialog(filename, NULL, &comcfg);
1730 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1731 fprintf(stderr, "Failed SetCommState\n");
1735 if (!SetCommMask(s->hcom, EV_ERR)) {
1736 fprintf(stderr, "Failed SetCommMask\n");
1740 cto.ReadIntervalTimeout = MAXDWORD;
1741 if (!SetCommTimeouts(s->hcom, &cto)) {
1742 fprintf(stderr, "Failed SetCommTimeouts\n");
1746 if (!ClearCommError(s->hcom, &err, &comstat)) {
1747 fprintf(stderr, "Failed ClearCommError\n");
1750 qemu_add_polling_cb(win_chr_poll, chr);
1758 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1760 WinCharState *s = chr->opaque;
1761 DWORD len, ret, size, err;
1764 ZeroMemory(&s->osend, sizeof(s->osend));
1765 s->osend.hEvent = s->hsend;
1768 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1770 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1772 err = GetLastError();
1773 if (err == ERROR_IO_PENDING) {
1774 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1792 static int win_chr_read_poll(CharDriverState *chr)
1794 WinCharState *s = chr->opaque;
1796 s->max_size = qemu_chr_be_can_write(chr);
1800 static void win_chr_readfile(CharDriverState *chr)
1802 WinCharState *s = chr->opaque;
1804 uint8_t buf[READ_BUF_LEN];
1807 ZeroMemory(&s->orecv, sizeof(s->orecv));
1808 s->orecv.hEvent = s->hrecv;
1809 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1811 err = GetLastError();
1812 if (err == ERROR_IO_PENDING) {
1813 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1818 qemu_chr_be_write(chr, buf, size);
1822 static void win_chr_read(CharDriverState *chr)
1824 WinCharState *s = chr->opaque;
1826 if (s->len > s->max_size)
1827 s->len = s->max_size;
1831 win_chr_readfile(chr);
1834 static int win_chr_poll(void *opaque)
1836 CharDriverState *chr = opaque;
1837 WinCharState *s = chr->opaque;
1841 ClearCommError(s->hcom, &comerr, &status);
1842 if (status.cbInQue > 0) {
1843 s->len = status.cbInQue;
1844 win_chr_read_poll(chr);
1851 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1853 CharDriverState *chr;
1856 chr = g_malloc0(sizeof(CharDriverState));
1857 s = g_malloc0(sizeof(WinCharState));
1859 chr->chr_write = win_chr_write;
1860 chr->chr_close = win_chr_close;
1862 if (win_chr_init(chr, filename) < 0) {
1867 qemu_chr_be_generic_open(chr);
1871 static int win_chr_pipe_poll(void *opaque)
1873 CharDriverState *chr = opaque;
1874 WinCharState *s = chr->opaque;
1877 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1880 win_chr_read_poll(chr);
1887 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1889 WinCharState *s = chr->opaque;
1897 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1899 fprintf(stderr, "Failed CreateEvent\n");
1902 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1904 fprintf(stderr, "Failed CreateEvent\n");
1908 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1909 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1910 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1912 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1913 if (s->hcom == INVALID_HANDLE_VALUE) {
1914 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1919 ZeroMemory(&ov, sizeof(ov));
1920 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1921 ret = ConnectNamedPipe(s->hcom, &ov);
1923 fprintf(stderr, "Failed ConnectNamedPipe\n");
1927 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1929 fprintf(stderr, "Failed GetOverlappedResult\n");
1931 CloseHandle(ov.hEvent);
1938 CloseHandle(ov.hEvent);
1941 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1950 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
1952 const char *filename = opts->device;
1953 CharDriverState *chr;
1956 chr = g_malloc0(sizeof(CharDriverState));
1957 s = g_malloc0(sizeof(WinCharState));
1959 chr->chr_write = win_chr_write;
1960 chr->chr_close = win_chr_close;
1962 if (win_chr_pipe_init(chr, filename) < 0) {
1967 qemu_chr_be_generic_open(chr);
1971 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1973 CharDriverState *chr;
1976 chr = g_malloc0(sizeof(CharDriverState));
1977 s = g_malloc0(sizeof(WinCharState));
1980 chr->chr_write = win_chr_write;
1981 qemu_chr_be_generic_open(chr);
1985 static CharDriverState *qemu_chr_open_win_con(void)
1987 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1990 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1992 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1999 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
2009 static void win_stdio_wait_func(void *opaque)
2011 CharDriverState *chr = opaque;
2012 WinStdioCharState *stdio = chr->opaque;
2013 INPUT_RECORD buf[4];
2018 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
2022 /* Avoid error storm */
2023 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
2027 for (i = 0; i < dwSize; i++) {
2028 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2030 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2032 if (kev->uChar.AsciiChar != 0) {
2033 for (j = 0; j < kev->wRepeatCount; j++) {
2034 if (qemu_chr_be_can_write(chr)) {
2035 uint8_t c = kev->uChar.AsciiChar;
2036 qemu_chr_be_write(chr, &c, 1);
2044 static DWORD WINAPI win_stdio_thread(LPVOID param)
2046 CharDriverState *chr = param;
2047 WinStdioCharState *stdio = chr->opaque;
2053 /* Wait for one byte */
2054 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2056 /* Exit in case of error, continue if nothing read */
2064 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2065 if (stdio->win_stdio_buf == '\r') {
2069 /* Signal the main thread and wait until the byte was eaten */
2070 if (!SetEvent(stdio->hInputReadyEvent)) {
2073 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2079 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2083 static void win_stdio_thread_wait_func(void *opaque)
2085 CharDriverState *chr = opaque;
2086 WinStdioCharState *stdio = chr->opaque;
2088 if (qemu_chr_be_can_write(chr)) {
2089 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2092 SetEvent(stdio->hInputDoneEvent);
2095 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2097 WinStdioCharState *stdio = chr->opaque;
2100 GetConsoleMode(stdio->hStdIn, &dwMode);
2103 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2105 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2109 static void win_stdio_close(CharDriverState *chr)
2111 WinStdioCharState *stdio = chr->opaque;
2113 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2114 CloseHandle(stdio->hInputReadyEvent);
2116 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2117 CloseHandle(stdio->hInputDoneEvent);
2119 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2120 TerminateThread(stdio->hInputThread, 0);
2123 g_free(chr->opaque);
2127 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
2129 CharDriverState *chr;
2130 WinStdioCharState *stdio;
2134 chr = g_malloc0(sizeof(CharDriverState));
2135 stdio = g_malloc0(sizeof(WinStdioCharState));
2137 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2138 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2139 fprintf(stderr, "cannot open stdio: invalid handle\n");
2143 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2145 chr->opaque = stdio;
2146 chr->chr_write = win_stdio_write;
2147 chr->chr_close = win_stdio_close;
2150 if (qemu_add_wait_object(stdio->hStdIn,
2151 win_stdio_wait_func, chr)) {
2152 fprintf(stderr, "qemu_add_wait_object: failed\n");
2157 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2158 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2159 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2162 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2163 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2164 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2165 fprintf(stderr, "cannot create stdio thread or event\n");
2168 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2169 win_stdio_thread_wait_func, chr)) {
2170 fprintf(stderr, "qemu_add_wait_object: failed\n");
2174 dwMode |= ENABLE_LINE_INPUT;
2177 /* set the terminal in raw mode */
2178 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2179 dwMode |= ENABLE_PROCESSED_INPUT;
2182 SetConsoleMode(stdio->hStdIn, dwMode);
2184 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2185 qemu_chr_fe_set_echo(chr, false);
2189 #endif /* !_WIN32 */
2192 /***********************************************************/
2193 /* UDP Net console */
2199 uint8_t buf[READ_BUF_LEN];
2205 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2207 NetCharDriver *s = chr->opaque;
2208 gsize bytes_written;
2211 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2212 if (status == G_IO_STATUS_EOF) {
2214 } else if (status != G_IO_STATUS_NORMAL) {
2218 return bytes_written;
2221 static int udp_chr_read_poll(void *opaque)
2223 CharDriverState *chr = opaque;
2224 NetCharDriver *s = chr->opaque;
2226 s->max_size = qemu_chr_be_can_write(chr);
2228 /* If there were any stray characters in the queue process them
2231 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2232 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2234 s->max_size = qemu_chr_be_can_write(chr);
2239 static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2241 CharDriverState *chr = opaque;
2242 NetCharDriver *s = chr->opaque;
2243 gsize bytes_read = 0;
2246 if (s->max_size == 0) {
2249 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2251 s->bufcnt = bytes_read;
2252 s->bufptr = s->bufcnt;
2253 if (status != G_IO_STATUS_NORMAL) {
2255 g_source_remove(s->tag);
2262 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2263 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2265 s->max_size = qemu_chr_be_can_write(chr);
2271 static void udp_chr_update_read_handler(CharDriverState *chr)
2273 NetCharDriver *s = chr->opaque;
2276 g_source_remove(s->tag);
2281 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
2285 static void udp_chr_close(CharDriverState *chr)
2287 NetCharDriver *s = chr->opaque;
2289 g_source_remove(s->tag);
2293 g_io_channel_unref(s->chan);
2297 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2300 static CharDriverState *qemu_chr_open_udp_fd(int fd)
2302 CharDriverState *chr = NULL;
2303 NetCharDriver *s = NULL;
2305 chr = g_malloc0(sizeof(CharDriverState));
2306 s = g_malloc0(sizeof(NetCharDriver));
2309 s->chan = io_channel_from_socket(s->fd);
2313 chr->chr_write = udp_chr_write;
2314 chr->chr_update_read_handler = udp_chr_update_read_handler;
2315 chr->chr_close = udp_chr_close;
2319 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2321 Error *local_err = NULL;
2324 fd = inet_dgram_opts(opts, &local_err);
2328 return qemu_chr_open_udp_fd(fd);
2331 /***********************************************************/
2332 /* TCP Net console */
2336 GIOChannel *chan, *listen_chan;
2337 guint tag, listen_tag;
2347 static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
2349 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2351 TCPCharDriver *s = chr->opaque;
2353 return io_channel_send(s->chan, buf, len);
2355 /* XXX: indicate an error ? */
2360 static int tcp_chr_read_poll(void *opaque)
2362 CharDriverState *chr = opaque;
2363 TCPCharDriver *s = chr->opaque;
2366 s->max_size = qemu_chr_be_can_write(chr);
2371 #define IAC_BREAK 243
2372 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2374 uint8_t *buf, int *size)
2376 /* Handle any telnet client's basic IAC options to satisfy char by
2377 * char mode with no echo. All IAC options will be removed from
2378 * the buf and the do_telnetopt variable will be used to track the
2379 * state of the width of the IAC information.
2381 * IAC commands come in sets of 3 bytes with the exception of the
2382 * "IAC BREAK" command and the double IAC.
2388 for (i = 0; i < *size; i++) {
2389 if (s->do_telnetopt > 1) {
2390 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2391 /* Double IAC means send an IAC */
2395 s->do_telnetopt = 1;
2397 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2398 /* Handle IAC break commands by sending a serial break */
2399 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2404 if (s->do_telnetopt >= 4) {
2405 s->do_telnetopt = 1;
2408 if ((unsigned char)buf[i] == IAC) {
2409 s->do_telnetopt = 2;
2420 static int tcp_get_msgfd(CharDriverState *chr)
2422 TCPCharDriver *s = chr->opaque;
2429 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2431 TCPCharDriver *s = chr->opaque;
2432 struct cmsghdr *cmsg;
2434 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2437 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2438 cmsg->cmsg_level != SOL_SOCKET ||
2439 cmsg->cmsg_type != SCM_RIGHTS)
2442 fd = *((int *)CMSG_DATA(cmsg));
2446 /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
2449 #ifndef MSG_CMSG_CLOEXEC
2450 qemu_set_cloexec(fd);
2458 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2460 TCPCharDriver *s = chr->opaque;
2461 struct msghdr msg = { NULL, };
2462 struct iovec iov[1];
2464 struct cmsghdr cmsg;
2465 char control[CMSG_SPACE(sizeof(int))];
2470 iov[0].iov_base = buf;
2471 iov[0].iov_len = len;
2475 msg.msg_control = &msg_control;
2476 msg.msg_controllen = sizeof(msg_control);
2478 #ifdef MSG_CMSG_CLOEXEC
2479 flags |= MSG_CMSG_CLOEXEC;
2481 ret = recvmsg(s->fd, &msg, flags);
2482 if (ret > 0 && s->is_unix) {
2483 unix_process_msgfd(chr, &msg);
2489 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2491 TCPCharDriver *s = chr->opaque;
2492 return qemu_recv(s->fd, buf, len, 0);
2496 static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2498 TCPCharDriver *s = chr->opaque;
2499 return g_io_create_watch(s->chan, cond);
2502 static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2504 CharDriverState *chr = opaque;
2505 TCPCharDriver *s = chr->opaque;
2506 uint8_t buf[READ_BUF_LEN];
2509 if (!s->connected || s->max_size <= 0) {
2513 if (len > s->max_size)
2515 size = tcp_chr_recv(chr, (void *)buf, len);
2517 /* connection closed */
2519 if (s->listen_chan) {
2520 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2523 g_source_remove(s->tag);
2526 g_io_channel_unref(s->chan);
2530 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2531 } else if (size > 0) {
2532 if (s->do_telnetopt)
2533 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2535 qemu_chr_be_write(chr, buf, size);
2542 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2544 return qemu_chr_open_fd(eventfd, eventfd);
2548 static void tcp_chr_connect(void *opaque)
2550 CharDriverState *chr = opaque;
2551 TCPCharDriver *s = chr->opaque;
2555 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
2557 qemu_chr_be_generic_open(chr);
2560 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2561 static void tcp_chr_telnet_init(int fd)
2564 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2565 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2566 send(fd, (char *)buf, 3, 0);
2567 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2568 send(fd, (char *)buf, 3, 0);
2569 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2570 send(fd, (char *)buf, 3, 0);
2571 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2572 send(fd, (char *)buf, 3, 0);
2575 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2577 TCPCharDriver *s = chr->opaque;
2581 qemu_set_nonblock(fd);
2583 socket_set_nodelay(fd);
2585 s->chan = io_channel_from_socket(fd);
2586 if (s->listen_tag) {
2587 g_source_remove(s->listen_tag);
2590 tcp_chr_connect(chr);
2595 static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
2597 CharDriverState *chr = opaque;
2598 TCPCharDriver *s = chr->opaque;
2599 struct sockaddr_in saddr;
2601 struct sockaddr_un uaddr;
2603 struct sockaddr *addr;
2610 len = sizeof(uaddr);
2611 addr = (struct sockaddr *)&uaddr;
2615 len = sizeof(saddr);
2616 addr = (struct sockaddr *)&saddr;
2618 fd = qemu_accept(s->listen_fd, addr, &len);
2619 if (fd < 0 && errno != EINTR) {
2621 } else if (fd >= 0) {
2622 if (s->do_telnetopt)
2623 tcp_chr_telnet_init(fd);
2627 if (tcp_chr_add_client(chr, fd) < 0)
2633 static void tcp_chr_close(CharDriverState *chr)
2635 TCPCharDriver *s = chr->opaque;
2638 g_source_remove(s->tag);
2642 g_io_channel_unref(s->chan);
2646 if (s->listen_fd >= 0) {
2647 if (s->listen_tag) {
2648 g_source_remove(s->listen_tag);
2651 if (s->listen_chan) {
2652 g_io_channel_unref(s->listen_chan);
2654 closesocket(s->listen_fd);
2657 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2660 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2661 bool is_listen, bool is_telnet,
2662 bool is_waitconnect,
2665 CharDriverState *chr = NULL;
2666 TCPCharDriver *s = NULL;
2667 char host[NI_MAXHOST], serv[NI_MAXSERV];
2668 const char *left = "", *right = "";
2669 struct sockaddr_storage ss;
2670 socklen_t ss_len = sizeof(ss);
2672 memset(&ss, 0, ss_len);
2673 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2674 error_setg(errp, "getsockname: %s", strerror(errno));
2678 chr = g_malloc0(sizeof(CharDriverState));
2679 s = g_malloc0(sizeof(TCPCharDriver));
2686 chr->filename = g_malloc(256);
2687 switch (ss.ss_family) {
2691 snprintf(chr->filename, 256, "unix:%s%s",
2692 ((struct sockaddr_un *)(&ss))->sun_path,
2693 is_listen ? ",server" : "");
2701 s->do_nodelay = do_nodelay;
2702 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2703 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2704 snprintf(chr->filename, 256, "%s:%s%s%s:%s%s",
2705 is_telnet ? "telnet" : "tcp",
2706 left, host, right, serv,
2707 is_listen ? ",server" : "");
2712 chr->chr_write = tcp_chr_write;
2713 chr->chr_close = tcp_chr_close;
2714 chr->get_msgfd = tcp_get_msgfd;
2715 chr->chr_add_client = tcp_chr_add_client;
2716 chr->chr_add_watch = tcp_chr_add_watch;
2720 s->listen_chan = io_channel_from_socket(s->listen_fd);
2721 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2723 s->do_telnetopt = 1;
2728 socket_set_nodelay(fd);
2729 s->chan = io_channel_from_socket(s->fd);
2730 tcp_chr_connect(chr);
2733 if (is_listen && is_waitconnect) {
2734 printf("QEMU waiting for connection on: %s\n",
2736 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
2737 qemu_set_nonblock(s->listen_fd);
2742 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2744 CharDriverState *chr = NULL;
2745 Error *local_err = NULL;
2753 is_listen = qemu_opt_get_bool(opts, "server", 0);
2754 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2755 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2756 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2757 is_unix = qemu_opt_get(opts, "path") != NULL;
2763 fd = unix_listen_opts(opts, &local_err);
2765 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2769 fd = inet_listen_opts(opts, 0, &local_err);
2771 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2778 if (!is_waitconnect)
2779 qemu_set_nonblock(fd);
2781 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2782 is_waitconnect, &local_err);
2783 if (error_is_set(&local_err)) {
2791 qerror_report_err(local_err);
2792 error_free(local_err);
2798 g_free(chr->opaque);
2804 /*********************************************************/
2805 /* Ring buffer chardev */
2812 } RingBufCharDriver;
2814 static size_t ringbuf_count(const CharDriverState *chr)
2816 const RingBufCharDriver *d = chr->opaque;
2818 return d->prod - d->cons;
2821 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2823 RingBufCharDriver *d = chr->opaque;
2826 if (!buf || (len < 0)) {
2830 for (i = 0; i < len; i++ ) {
2831 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2832 if (d->prod - d->cons > d->size) {
2833 d->cons = d->prod - d->size;
2840 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2842 RingBufCharDriver *d = chr->opaque;
2845 for (i = 0; i < len && d->cons != d->prod; i++) {
2846 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2852 static void ringbuf_chr_close(struct CharDriverState *chr)
2854 RingBufCharDriver *d = chr->opaque;
2861 static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
2864 CharDriverState *chr;
2865 RingBufCharDriver *d;
2867 chr = g_malloc0(sizeof(CharDriverState));
2868 d = g_malloc(sizeof(*d));
2870 d->size = opts->has_size ? opts->size : 65536;
2872 /* The size must be power of 2 */
2873 if (d->size & (d->size - 1)) {
2874 error_setg(errp, "size of ringbuf chardev must be power of two");
2880 d->cbuf = g_malloc0(d->size);
2883 chr->chr_write = ringbuf_chr_write;
2884 chr->chr_close = ringbuf_chr_close;
2894 static bool chr_is_ringbuf(const CharDriverState *chr)
2896 return chr->chr_write == ringbuf_chr_write;
2899 void qmp_ringbuf_write(const char *device, const char *data,
2900 bool has_format, enum DataFormat format,
2903 CharDriverState *chr;
2904 const uint8_t *write_data;
2908 chr = qemu_chr_find(device);
2910 error_setg(errp, "Device '%s' not found", device);
2914 if (!chr_is_ringbuf(chr)) {
2915 error_setg(errp,"%s is not a ringbuf device", device);
2919 if (has_format && (format == DATA_FORMAT_BASE64)) {
2920 write_data = g_base64_decode(data, &write_count);
2922 write_data = (uint8_t *)data;
2923 write_count = strlen(data);
2926 ret = ringbuf_chr_write(chr, write_data, write_count);
2928 if (write_data != (uint8_t *)data) {
2929 g_free((void *)write_data);
2933 error_setg(errp, "Failed to write to device %s", device);
2938 char *qmp_ringbuf_read(const char *device, int64_t size,
2939 bool has_format, enum DataFormat format,
2942 CharDriverState *chr;
2947 chr = qemu_chr_find(device);
2949 error_setg(errp, "Device '%s' not found", device);
2953 if (!chr_is_ringbuf(chr)) {
2954 error_setg(errp,"%s is not a ringbuf device", device);
2959 error_setg(errp, "size must be greater than zero");
2963 count = ringbuf_count(chr);
2964 size = size > count ? count : size;
2965 read_data = g_malloc(size + 1);
2967 ringbuf_chr_read(chr, read_data, size);
2969 if (has_format && (format == DATA_FORMAT_BASE64)) {
2970 data = g_base64_encode(read_data, size);
2974 * FIXME should read only complete, valid UTF-8 characters up
2975 * to @size bytes. Invalid sequences should be replaced by a
2976 * suitable replacement character. Except when (and only
2977 * when) ring buffer lost characters since last read, initial
2978 * continuation characters should be dropped.
2980 read_data[size] = 0;
2981 data = (char *)read_data;
2987 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2989 char host[65], port[33], width[8], height[8];
2993 Error *local_err = NULL;
2995 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
2996 if (error_is_set(&local_err)) {
2997 qerror_report_err(local_err);
2998 error_free(local_err);
3002 if (strstart(filename, "mon:", &p)) {
3004 qemu_opt_set(opts, "mux", "on");
3007 if (strcmp(filename, "null") == 0 ||
3008 strcmp(filename, "pty") == 0 ||
3009 strcmp(filename, "msmouse") == 0 ||
3010 strcmp(filename, "braille") == 0 ||
3011 strcmp(filename, "stdio") == 0) {
3012 qemu_opt_set(opts, "backend", filename);
3015 if (strstart(filename, "vc", &p)) {
3016 qemu_opt_set(opts, "backend", "vc");
3018 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3020 qemu_opt_set(opts, "width", width);
3021 qemu_opt_set(opts, "height", height);
3022 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3024 qemu_opt_set(opts, "cols", width);
3025 qemu_opt_set(opts, "rows", height);
3032 if (strcmp(filename, "con:") == 0) {
3033 qemu_opt_set(opts, "backend", "console");
3036 if (strstart(filename, "COM", NULL)) {
3037 qemu_opt_set(opts, "backend", "serial");
3038 qemu_opt_set(opts, "path", filename);
3041 if (strstart(filename, "file:", &p)) {
3042 qemu_opt_set(opts, "backend", "file");
3043 qemu_opt_set(opts, "path", p);
3046 if (strstart(filename, "pipe:", &p)) {
3047 qemu_opt_set(opts, "backend", "pipe");
3048 qemu_opt_set(opts, "path", p);
3051 if (strstart(filename, "tcp:", &p) ||
3052 strstart(filename, "telnet:", &p)) {
3053 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3055 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3058 qemu_opt_set(opts, "backend", "socket");
3059 qemu_opt_set(opts, "host", host);
3060 qemu_opt_set(opts, "port", port);
3061 if (p[pos] == ',') {
3062 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3065 if (strstart(filename, "telnet:", &p))
3066 qemu_opt_set(opts, "telnet", "on");
3069 if (strstart(filename, "udp:", &p)) {
3070 qemu_opt_set(opts, "backend", "udp");
3071 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3073 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3077 qemu_opt_set(opts, "host", host);
3078 qemu_opt_set(opts, "port", port);
3079 if (p[pos] == '@') {
3081 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3083 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3087 qemu_opt_set(opts, "localaddr", host);
3088 qemu_opt_set(opts, "localport", port);
3092 if (strstart(filename, "unix:", &p)) {
3093 qemu_opt_set(opts, "backend", "socket");
3094 if (qemu_opts_do_parse(opts, p, "path") != 0)
3098 if (strstart(filename, "/dev/parport", NULL) ||
3099 strstart(filename, "/dev/ppi", NULL)) {
3100 qemu_opt_set(opts, "backend", "parport");
3101 qemu_opt_set(opts, "path", filename);
3104 if (strstart(filename, "/dev/", NULL)) {
3105 qemu_opt_set(opts, "backend", "tty");
3106 qemu_opt_set(opts, "path", filename);
3111 qemu_opts_del(opts);
3115 static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3118 const char *path = qemu_opt_get(opts, "path");
3121 error_setg(errp, "chardev: file: no filename given");
3124 backend->file = g_new0(ChardevFile, 1);
3125 backend->file->out = g_strdup(path);
3128 static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3131 backend->stdio = g_new0(ChardevStdio, 1);
3132 backend->stdio->has_signal = true;
3133 backend->stdio->signal =
3134 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3137 static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3140 const char *device = qemu_opt_get(opts, "path");
3142 if (device == NULL) {
3143 error_setg(errp, "chardev: serial/tty: no device path given");
3146 backend->serial = g_new0(ChardevHostdev, 1);
3147 backend->serial->device = g_strdup(device);
3150 static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3153 const char *device = qemu_opt_get(opts, "path");
3155 if (device == NULL) {
3156 error_setg(errp, "chardev: parallel: no device path given");
3159 backend->parallel = g_new0(ChardevHostdev, 1);
3160 backend->parallel->device = g_strdup(device);
3163 static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
3166 const char *device = qemu_opt_get(opts, "path");
3168 if (device == NULL) {
3169 error_setg(errp, "chardev: pipe: no device path given");
3172 backend->pipe = g_new0(ChardevHostdev, 1);
3173 backend->pipe->device = g_strdup(device);
3176 static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend,
3181 backend->memory = g_new0(ChardevRingbuf, 1);
3183 val = qemu_opt_get_number(opts, "size", 0);
3185 backend->memory->has_size = true;
3186 backend->memory->size = val;
3190 typedef struct CharDriver {
3193 CharDriverState *(*open)(QemuOpts *opts);
3194 /* new, qapi-based */
3196 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
3199 static GSList *backends;
3201 void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3205 s = g_malloc0(sizeof(*s));
3206 s->name = g_strdup(name);
3209 backends = g_slist_append(backends, s);
3212 void register_char_driver_qapi(const char *name, int kind,
3213 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3217 s = g_malloc0(sizeof(*s));
3218 s->name = g_strdup(name);
3222 backends = g_slist_append(backends, s);
3225 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3226 void (*init)(struct CharDriverState *s),
3230 CharDriverState *chr;
3233 if (qemu_opts_id(opts) == NULL) {
3234 error_setg(errp, "chardev: no id specified");
3238 if (qemu_opt_get(opts, "backend") == NULL) {
3239 error_setg(errp, "chardev: \"%s\" missing backend",
3240 qemu_opts_id(opts));
3243 for (i = backends; i; i = i->next) {
3246 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
3251 error_setg(errp, "chardev: backend \"%s\" not found",
3252 qemu_opt_get(opts, "backend"));
3257 /* using new, qapi init */
3258 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3259 ChardevReturn *ret = NULL;
3260 const char *id = qemu_opts_id(opts);
3261 const char *bid = NULL;
3263 if (qemu_opt_get_bool(opts, "mux", 0)) {
3264 bid = g_strdup_printf("%s-base", id);
3268 backend->kind = cd->kind;
3270 cd->parse(opts, backend, errp);
3271 if (error_is_set(errp)) {
3275 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
3276 if (error_is_set(errp)) {
3281 qapi_free_ChardevBackend(backend);
3282 qapi_free_ChardevReturn(ret);
3283 backend = g_new0(ChardevBackend, 1);
3284 backend->mux = g_new0(ChardevMux, 1);
3285 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3286 backend->mux->chardev = g_strdup(bid);
3287 ret = qmp_chardev_add(id, backend, errp);
3288 if (error_is_set(errp)) {
3293 chr = qemu_chr_find(id);
3296 qapi_free_ChardevBackend(backend);
3297 qapi_free_ChardevReturn(ret);
3301 chr = cd->open(opts);
3303 error_setg(errp, "chardev: opening backend \"%s\" failed",
3304 qemu_opt_get(opts, "backend"));
3309 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3311 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3313 if (qemu_opt_get_bool(opts, "mux", 0)) {
3314 CharDriverState *base = chr;
3315 int len = strlen(qemu_opts_id(opts)) + 6;
3316 base->label = g_malloc(len);
3317 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3318 chr = qemu_chr_open_mux(base);
3319 chr->filename = base->filename;
3320 chr->avail_connections = MAX_MUX;
3321 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3323 chr->avail_connections = 1;
3325 chr->label = g_strdup(qemu_opts_id(opts));
3330 qemu_opts_del(opts);
3334 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3337 CharDriverState *chr;
3341 if (strstart(filename, "chardev:", &p)) {
3342 return qemu_chr_find(p);
3345 opts = qemu_chr_parse_compat(label, filename);
3349 chr = qemu_chr_new_from_opts(opts, init, &err);
3350 if (error_is_set(&err)) {
3351 fprintf(stderr, "%s\n", error_get_pretty(err));
3354 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3355 qemu_chr_fe_claim_no_fail(chr);
3356 monitor_init(chr, MONITOR_USE_READLINE);
3361 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3363 if (chr->chr_set_echo) {
3364 chr->chr_set_echo(chr, echo);
3368 void qemu_chr_fe_set_open(struct CharDriverState *chr, int fe_open)
3370 if (chr->fe_open == fe_open) {
3373 chr->fe_open = fe_open;
3374 if (chr->chr_set_fe_open) {
3375 chr->chr_set_fe_open(chr, fe_open);
3379 int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3380 GIOFunc func, void *user_data)
3385 if (s->chr_add_watch == NULL) {
3389 src = s->chr_add_watch(s, cond);
3390 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3391 tag = g_source_attach(src, NULL);
3392 g_source_unref(src);
3397 int qemu_chr_fe_claim(CharDriverState *s)
3399 if (s->avail_connections < 1) {
3402 s->avail_connections--;
3406 void qemu_chr_fe_claim_no_fail(CharDriverState *s)
3408 if (qemu_chr_fe_claim(s) != 0) {
3409 fprintf(stderr, "%s: error chardev \"%s\" already used\n",
3410 __func__, s->label);
3415 void qemu_chr_fe_release(CharDriverState *s)
3417 s->avail_connections++;
3420 void qemu_chr_delete(CharDriverState *chr)
3422 QTAILQ_REMOVE(&chardevs, chr, next);
3423 if (chr->chr_close) {
3424 chr->chr_close(chr);
3426 g_free(chr->filename);
3429 qemu_opts_del(chr->opts);
3434 ChardevInfoList *qmp_query_chardev(Error **errp)
3436 ChardevInfoList *chr_list = NULL;
3437 CharDriverState *chr;
3439 QTAILQ_FOREACH(chr, &chardevs, next) {
3440 ChardevInfoList *info = g_malloc0(sizeof(*info));
3441 info->value = g_malloc0(sizeof(*info->value));
3442 info->value->label = g_strdup(chr->label);
3443 info->value->filename = g_strdup(chr->filename);
3445 info->next = chr_list;
3452 CharDriverState *qemu_chr_find(const char *name)
3454 CharDriverState *chr;
3456 QTAILQ_FOREACH(chr, &chardevs, next) {
3457 if (strcmp(chr->label, name) != 0)
3464 /* Get a character (serial) device interface. */
3465 CharDriverState *qemu_char_get_next_serial(void)
3467 static int next_serial;
3468 CharDriverState *chr;
3470 /* FIXME: This function needs to go away: use chardev properties! */
3472 while (next_serial < MAX_SERIAL_PORTS && serial_hds[next_serial]) {
3473 chr = serial_hds[next_serial++];
3474 qemu_chr_fe_claim_no_fail(chr);
3480 QemuOptsList qemu_chardev_opts = {
3482 .implied_opt_name = "backend",
3483 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3487 .type = QEMU_OPT_STRING,
3490 .type = QEMU_OPT_STRING,
3493 .type = QEMU_OPT_STRING,
3496 .type = QEMU_OPT_STRING,
3498 .name = "localaddr",
3499 .type = QEMU_OPT_STRING,
3501 .name = "localport",
3502 .type = QEMU_OPT_STRING,
3505 .type = QEMU_OPT_NUMBER,
3508 .type = QEMU_OPT_BOOL,
3511 .type = QEMU_OPT_BOOL,
3514 .type = QEMU_OPT_BOOL,
3517 .type = QEMU_OPT_BOOL,
3520 .type = QEMU_OPT_BOOL,
3523 .type = QEMU_OPT_BOOL,
3526 .type = QEMU_OPT_NUMBER,
3529 .type = QEMU_OPT_NUMBER,
3532 .type = QEMU_OPT_NUMBER,
3535 .type = QEMU_OPT_NUMBER,
3538 .type = QEMU_OPT_BOOL,
3541 .type = QEMU_OPT_BOOL,
3544 .type = QEMU_OPT_STRING,
3547 .type = QEMU_OPT_NUMBER,
3550 .type = QEMU_OPT_SIZE,
3552 { /* end of list */ }
3558 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3563 error_setg(errp, "input file not supported");
3567 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3568 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3569 if (out == INVALID_HANDLE_VALUE) {
3570 error_setg(errp, "open %s failed", file->out);
3573 return qemu_chr_open_win_file(out);
3576 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3579 return qemu_chr_open_win_path(serial->device);
3582 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3585 error_setg(errp, "character device backend type 'parallel' not supported");
3591 static int qmp_chardev_open_file_source(char *src, int flags,
3596 TFR(fd = qemu_open(src, flags, 0666));
3598 error_setg(errp, "open %s: %s", src, strerror(errno));
3603 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3605 int flags, in = -1, out = -1;
3607 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3608 out = qmp_chardev_open_file_source(file->out, flags, errp);
3609 if (error_is_set(errp)) {
3615 in = qmp_chardev_open_file_source(file->in, flags, errp);
3616 if (error_is_set(errp)) {
3622 return qemu_chr_open_fd(in, out);
3625 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3628 #ifdef HAVE_CHARDEV_TTY
3631 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3632 if (error_is_set(errp)) {
3635 qemu_set_nonblock(fd);
3636 return qemu_chr_open_tty_fd(fd);
3638 error_setg(errp, "character device backend type 'serial' not supported");
3643 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3646 #ifdef HAVE_CHARDEV_PARPORT
3649 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3650 if (error_is_set(errp)) {
3653 return qemu_chr_open_pp_fd(fd);
3655 error_setg(errp, "character device backend type 'parallel' not supported");
3662 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3665 SocketAddress *addr = sock->addr;
3666 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3667 bool is_listen = sock->has_server ? sock->server : true;
3668 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3669 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3673 fd = socket_listen(addr, errp);
3675 fd = socket_connect(addr, errp, NULL, NULL);
3677 if (error_is_set(errp)) {
3680 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3681 is_telnet, is_waitconnect, errp);
3684 static CharDriverState *qmp_chardev_open_dgram(ChardevDgram *dgram,
3689 fd = socket_dgram(dgram->remote, dgram->local, errp);
3690 if (error_is_set(errp)) {
3693 return qemu_chr_open_udp_fd(fd);
3696 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3699 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3700 CharDriverState *base, *chr = NULL;
3702 chr = qemu_chr_find(id);
3704 error_setg(errp, "Chardev '%s' already exists", id);
3709 switch (backend->kind) {
3710 case CHARDEV_BACKEND_KIND_FILE:
3711 chr = qmp_chardev_open_file(backend->file, errp);
3713 case CHARDEV_BACKEND_KIND_SERIAL:
3714 chr = qmp_chardev_open_serial(backend->serial, errp);
3716 case CHARDEV_BACKEND_KIND_PARALLEL:
3717 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3719 case CHARDEV_BACKEND_KIND_PIPE:
3720 chr = qemu_chr_open_pipe(backend->pipe);
3722 case CHARDEV_BACKEND_KIND_SOCKET:
3723 chr = qmp_chardev_open_socket(backend->socket, errp);
3725 case CHARDEV_BACKEND_KIND_DGRAM:
3726 chr = qmp_chardev_open_dgram(backend->dgram, errp);
3728 #ifdef HAVE_CHARDEV_TTY
3729 case CHARDEV_BACKEND_KIND_PTY:
3730 chr = qemu_chr_open_pty(id, ret);
3733 case CHARDEV_BACKEND_KIND_NULL:
3734 chr = qemu_chr_open_null();
3736 case CHARDEV_BACKEND_KIND_MUX:
3737 base = qemu_chr_find(backend->mux->chardev);
3739 error_setg(errp, "mux: base chardev %s not found",
3740 backend->mux->chardev);
3743 chr = qemu_chr_open_mux(base);
3745 case CHARDEV_BACKEND_KIND_MSMOUSE:
3746 chr = qemu_chr_open_msmouse();
3748 #ifdef CONFIG_BRLAPI
3749 case CHARDEV_BACKEND_KIND_BRAILLE:
3750 chr = chr_baum_init();
3753 case CHARDEV_BACKEND_KIND_STDIO:
3754 chr = qemu_chr_open_stdio(backend->stdio);
3757 case CHARDEV_BACKEND_KIND_CONSOLE:
3758 chr = qemu_chr_open_win_con();
3762 case CHARDEV_BACKEND_KIND_SPICEVMC:
3763 chr = qemu_chr_open_spice_vmc(backend->spicevmc->type);
3765 case CHARDEV_BACKEND_KIND_SPICEPORT:
3766 chr = qemu_chr_open_spice_port(backend->spiceport->fqdn);
3769 case CHARDEV_BACKEND_KIND_VC:
3770 chr = vc_init(backend->vc);
3772 case CHARDEV_BACKEND_KIND_MEMORY:
3773 chr = qemu_chr_open_ringbuf(backend->memory, errp);
3776 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3780 if (chr == NULL && !error_is_set(errp)) {
3781 error_setg(errp, "Failed to create chardev");
3784 chr->label = g_strdup(id);
3785 chr->avail_connections =
3786 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
3787 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3795 void qmp_chardev_remove(const char *id, Error **errp)
3797 CharDriverState *chr;
3799 chr = qemu_chr_find(id);
3801 error_setg(errp, "Chardev '%s' not found", id);
3804 if (chr->chr_can_read || chr->chr_read ||
3805 chr->chr_event || chr->handler_opaque) {
3806 error_setg(errp, "Chardev '%s' is busy", id);
3809 qemu_chr_delete(chr);
3812 static void register_types(void)
3814 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
3815 register_char_driver("socket", qemu_chr_open_socket);
3816 register_char_driver("udp", qemu_chr_open_udp);
3817 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
3818 qemu_chr_parse_ringbuf);
3819 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3820 qemu_chr_parse_file_out);
3821 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3822 qemu_chr_parse_stdio);
3823 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3824 qemu_chr_parse_serial);
3825 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3826 qemu_chr_parse_serial);
3827 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3828 qemu_chr_parse_parallel);
3829 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3830 qemu_chr_parse_parallel);
3831 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
3832 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
3833 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
3834 qemu_chr_parse_pipe);
3837 type_init(register_types);