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);
647 g_source_destroy(iwp->src);
648 g_source_unref(iwp->src);
652 static GSourceFuncs io_watch_poll_funcs = {
653 .prepare = io_watch_poll_prepare,
654 .check = io_watch_poll_check,
655 .dispatch = io_watch_poll_dispatch,
656 .finalize = io_watch_poll_finalize,
659 /* Can only be used for read */
660 static guint io_add_watch_poll(GIOChannel *channel,
661 IOCanReadHandler *fd_can_read,
667 iwp = (IOWatchPoll *) g_source_new(&io_watch_poll_funcs, sizeof(IOWatchPoll));
668 iwp->fd_can_read = fd_can_read;
669 iwp->opaque = user_data;
670 iwp->channel = channel;
671 iwp->fd_read = (GSourceFunc) fd_read;
674 return g_source_attach(&iwp->parent, NULL);
678 static GIOChannel *io_channel_from_fd(int fd)
686 chan = g_io_channel_unix_new(fd);
688 g_io_channel_set_encoding(chan, NULL, NULL);
689 g_io_channel_set_buffered(chan, FALSE);
695 static GIOChannel *io_channel_from_socket(int fd)
704 chan = g_io_channel_win32_new_socket(fd);
706 chan = g_io_channel_unix_new(fd);
709 g_io_channel_set_encoding(chan, NULL, NULL);
710 g_io_channel_set_buffered(chan, FALSE);
715 static int io_channel_send(GIOChannel *fd, const void *buf, size_t len)
721 while (offset < len) {
724 status = g_io_channel_write_chars(fd, buf + offset, len - offset,
725 &bytes_written, NULL);
726 if (status != G_IO_STATUS_NORMAL) {
727 if (status == G_IO_STATUS_AGAIN) {
728 /* If we've written any data, return a partial write. */
738 } else if (status == G_IO_STATUS_EOF) {
742 offset += bytes_written;
750 typedef struct FDCharDriver {
751 CharDriverState *chr;
752 GIOChannel *fd_in, *fd_out;
755 QTAILQ_ENTRY(FDCharDriver) node;
758 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
760 FDCharDriver *s = chr->opaque;
762 return io_channel_send(s->fd_out, buf, len);
765 static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
767 CharDriverState *chr = opaque;
768 FDCharDriver *s = chr->opaque;
770 uint8_t buf[READ_BUF_LEN];
775 if (len > s->max_size) {
782 status = g_io_channel_read_chars(chan, (gchar *)buf,
783 len, &bytes_read, NULL);
784 if (status == G_IO_STATUS_EOF) {
785 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
788 if (status == G_IO_STATUS_NORMAL) {
789 qemu_chr_be_write(chr, buf, bytes_read);
795 static int fd_chr_read_poll(void *opaque)
797 CharDriverState *chr = opaque;
798 FDCharDriver *s = chr->opaque;
800 s->max_size = qemu_chr_be_can_write(chr);
804 static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
806 FDCharDriver *s = chr->opaque;
807 return g_io_create_watch(s->fd_out, cond);
810 static void fd_chr_update_read_handler(CharDriverState *chr)
812 FDCharDriver *s = chr->opaque;
815 g_source_remove(s->fd_in_tag);
819 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
823 static void fd_chr_close(struct CharDriverState *chr)
825 FDCharDriver *s = chr->opaque;
828 g_source_remove(s->fd_in_tag);
833 g_io_channel_unref(s->fd_in);
836 g_io_channel_unref(s->fd_out);
840 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
843 /* open a character device to a unix fd */
844 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
846 CharDriverState *chr;
849 chr = g_malloc0(sizeof(CharDriverState));
850 s = g_malloc0(sizeof(FDCharDriver));
851 s->fd_in = io_channel_from_fd(fd_in);
852 s->fd_out = io_channel_from_fd(fd_out);
853 fcntl(fd_out, F_SETFL, O_NONBLOCK);
856 chr->chr_add_watch = fd_chr_add_watch;
857 chr->chr_write = fd_chr_write;
858 chr->chr_update_read_handler = fd_chr_update_read_handler;
859 chr->chr_close = fd_chr_close;
861 qemu_chr_be_generic_open(chr);
866 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
869 char filename_in[256], filename_out[256];
870 const char *filename = opts->device;
872 if (filename == NULL) {
873 fprintf(stderr, "chardev: pipe: no filename given\n");
877 snprintf(filename_in, 256, "%s.in", filename);
878 snprintf(filename_out, 256, "%s.out", filename);
879 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
880 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
881 if (fd_in < 0 || fd_out < 0) {
886 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
891 return qemu_chr_open_fd(fd_in, fd_out);
894 /* init terminal so that we can grab keys */
895 static struct termios oldtty;
896 static int old_fd0_flags;
897 static bool stdio_allow_signal;
899 static void term_exit(void)
901 tcsetattr (0, TCSANOW, &oldtty);
902 fcntl(0, F_SETFL, old_fd0_flags);
905 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
911 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
912 |INLCR|IGNCR|ICRNL|IXON);
913 tty.c_oflag |= OPOST;
914 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
915 tty.c_cflag &= ~(CSIZE|PARENB);
920 /* if graphical mode, we allow Ctrl-C handling */
921 if (!stdio_allow_signal)
922 tty.c_lflag &= ~ISIG;
924 tcsetattr (0, TCSANOW, &tty);
927 static void qemu_chr_close_stdio(struct CharDriverState *chr)
933 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
935 CharDriverState *chr;
937 if (is_daemonized()) {
938 error_report("cannot use stdio with -daemonize");
941 old_fd0_flags = fcntl(0, F_GETFL);
942 tcgetattr (0, &oldtty);
943 fcntl(0, F_SETFL, O_NONBLOCK);
946 chr = qemu_chr_open_fd(0, 1);
947 chr->chr_close = qemu_chr_close_stdio;
948 chr->chr_set_echo = qemu_chr_set_echo_stdio;
949 stdio_allow_signal = display_type != DT_NOGRAPHIC;
950 if (opts->has_signal) {
951 stdio_allow_signal = opts->signal;
953 qemu_chr_fe_set_echo(chr, false);
959 /* Once Solaris has openpty(), this is going to be removed. */
960 static int openpty(int *amaster, int *aslave, char *name,
961 struct termios *termp, struct winsize *winp)
964 int mfd = -1, sfd = -1;
966 *amaster = *aslave = -1;
968 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
972 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
975 if ((slave = ptsname(mfd)) == NULL)
978 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
981 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
982 (termp != NULL && tcgetattr(sfd, termp) < 0))
990 ioctl(sfd, TIOCSWINSZ, winp);
1001 static void cfmakeraw (struct termios *termios_p)
1003 termios_p->c_iflag &=
1004 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
1005 termios_p->c_oflag &= ~OPOST;
1006 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
1007 termios_p->c_cflag &= ~(CSIZE|PARENB);
1008 termios_p->c_cflag |= CS8;
1010 termios_p->c_cc[VMIN] = 0;
1011 termios_p->c_cc[VTIME] = 0;
1015 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1016 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1017 || defined(__GLIBC__)
1019 #define HAVE_CHARDEV_TTY 1
1030 static void pty_chr_update_read_handler(CharDriverState *chr);
1031 static void pty_chr_state(CharDriverState *chr, int connected);
1033 static gboolean pty_chr_timer(gpointer opaque)
1035 struct CharDriverState *chr = opaque;
1036 PtyCharDriver *s = chr->opaque;
1042 /* If we arrive here without polling being cleared due
1043 * read returning -EIO, then we are (re-)connected */
1044 pty_chr_state(chr, 1);
1049 pty_chr_update_read_handler(chr);
1055 static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1057 PtyCharDriver *s = chr->opaque;
1060 g_source_remove(s->timer_tag);
1065 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1067 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1071 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1073 PtyCharDriver *s = chr->opaque;
1075 if (!s->connected) {
1076 /* guest sends data, check for (re-)connect */
1077 pty_chr_update_read_handler(chr);
1080 return io_channel_send(s->fd, buf, len);
1083 static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1085 PtyCharDriver *s = chr->opaque;
1086 return g_io_create_watch(s->fd, cond);
1089 static int pty_chr_read_poll(void *opaque)
1091 CharDriverState *chr = opaque;
1092 PtyCharDriver *s = chr->opaque;
1094 s->read_bytes = qemu_chr_be_can_write(chr);
1095 return s->read_bytes;
1098 static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
1100 CharDriverState *chr = opaque;
1101 PtyCharDriver *s = chr->opaque;
1103 uint8_t buf[READ_BUF_LEN];
1107 if (len > s->read_bytes)
1108 len = s->read_bytes;
1111 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1112 if (status != G_IO_STATUS_NORMAL) {
1113 pty_chr_state(chr, 0);
1116 pty_chr_state(chr, 1);
1117 qemu_chr_be_write(chr, buf, size);
1122 static void pty_chr_update_read_handler(CharDriverState *chr)
1124 PtyCharDriver *s = chr->opaque;
1127 g_source_remove(s->fd_tag);
1130 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
1133 * Short timeout here: just need wait long enougth that qemu makes
1134 * it through the poll loop once. When reconnected we want a
1135 * short timeout so we notice it almost instantly. Otherwise
1136 * read() gives us -EIO instantly, making pty_chr_state() reset the
1137 * timeout to the normal (much longer) poll interval before the
1140 pty_chr_rearm_timer(chr, 10);
1143 static void pty_chr_state(CharDriverState *chr, int connected)
1145 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 qemu_chr_be_generic_open(chr);
1164 static void pty_chr_close(struct CharDriverState *chr)
1166 PtyCharDriver *s = chr->opaque;
1170 g_source_remove(s->fd_tag);
1172 fd = g_io_channel_unix_get_fd(s->fd);
1173 g_io_channel_unref(s->fd);
1176 g_source_remove(s->timer_tag);
1179 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1182 static CharDriverState *qemu_chr_open_pty(const char *id,
1185 CharDriverState *chr;
1188 int master_fd, slave_fd;
1189 #if defined(__OpenBSD__) || defined(__DragonFly__)
1190 char pty_name[PATH_MAX];
1191 #define q_ptsname(x) pty_name
1193 char *pty_name = NULL;
1194 #define q_ptsname(x) ptsname(x)
1197 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1201 /* Set raw attributes on the pty. */
1202 tcgetattr(slave_fd, &tty);
1204 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1207 chr = g_malloc0(sizeof(CharDriverState));
1209 chr->filename = g_strdup_printf("pty:%s", q_ptsname(master_fd));
1210 ret->pty = g_strdup(q_ptsname(master_fd));
1211 ret->has_pty = true;
1213 fprintf(stderr, "char device redirected to %s (label %s)\n",
1214 q_ptsname(master_fd), id);
1216 s = g_malloc0(sizeof(PtyCharDriver));
1218 chr->chr_write = pty_chr_write;
1219 chr->chr_update_read_handler = pty_chr_update_read_handler;
1220 chr->chr_close = pty_chr_close;
1221 chr->chr_add_watch = pty_chr_add_watch;
1223 s->fd = io_channel_from_fd(master_fd);
1229 static void tty_serial_init(int fd, int speed,
1230 int parity, int data_bits, int stop_bits)
1236 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1237 speed, parity, data_bits, stop_bits);
1239 tcgetattr (fd, &tty);
1241 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1242 speed = speed * 10 / 11;
1259 /* Non-Posix values follow. They may be unsupported on some systems. */
1261 check_speed(115200);
1263 check_speed(230400);
1266 check_speed(460800);
1269 check_speed(500000);
1272 check_speed(576000);
1275 check_speed(921600);
1278 check_speed(1000000);
1281 check_speed(1152000);
1284 check_speed(1500000);
1287 check_speed(2000000);
1290 check_speed(2500000);
1293 check_speed(3000000);
1296 check_speed(3500000);
1299 check_speed(4000000);
1304 cfsetispeed(&tty, spd);
1305 cfsetospeed(&tty, spd);
1307 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1308 |INLCR|IGNCR|ICRNL|IXON);
1309 tty.c_oflag |= OPOST;
1310 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1311 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1332 tty.c_cflag |= PARENB;
1335 tty.c_cflag |= PARENB | PARODD;
1339 tty.c_cflag |= CSTOPB;
1341 tcsetattr (fd, TCSANOW, &tty);
1344 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1346 FDCharDriver *s = chr->opaque;
1349 case CHR_IOCTL_SERIAL_SET_PARAMS:
1351 QEMUSerialSetParams *ssp = arg;
1352 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1353 ssp->speed, ssp->parity,
1354 ssp->data_bits, ssp->stop_bits);
1357 case CHR_IOCTL_SERIAL_SET_BREAK:
1359 int enable = *(int *)arg;
1361 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1365 case CHR_IOCTL_SERIAL_GET_TIOCM:
1368 int *targ = (int *)arg;
1369 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1371 if (sarg & TIOCM_CTS)
1372 *targ |= CHR_TIOCM_CTS;
1373 if (sarg & TIOCM_CAR)
1374 *targ |= CHR_TIOCM_CAR;
1375 if (sarg & TIOCM_DSR)
1376 *targ |= CHR_TIOCM_DSR;
1377 if (sarg & TIOCM_RI)
1378 *targ |= CHR_TIOCM_RI;
1379 if (sarg & TIOCM_DTR)
1380 *targ |= CHR_TIOCM_DTR;
1381 if (sarg & TIOCM_RTS)
1382 *targ |= CHR_TIOCM_RTS;
1385 case CHR_IOCTL_SERIAL_SET_TIOCM:
1387 int sarg = *(int *)arg;
1389 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1390 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1391 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1392 if (sarg & CHR_TIOCM_CTS)
1394 if (sarg & CHR_TIOCM_CAR)
1396 if (sarg & CHR_TIOCM_DSR)
1398 if (sarg & CHR_TIOCM_RI)
1400 if (sarg & CHR_TIOCM_DTR)
1402 if (sarg & CHR_TIOCM_RTS)
1404 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1413 static void qemu_chr_close_tty(CharDriverState *chr)
1415 FDCharDriver *s = chr->opaque;
1419 fd = g_io_channel_unix_get_fd(s->fd_in);
1429 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1431 CharDriverState *chr;
1433 tty_serial_init(fd, 115200, 'N', 8, 1);
1434 chr = qemu_chr_open_fd(fd, fd);
1435 chr->chr_ioctl = tty_serial_ioctl;
1436 chr->chr_close = qemu_chr_close_tty;
1439 #endif /* __linux__ || __sun__ */
1441 #if defined(__linux__)
1443 #define HAVE_CHARDEV_PARPORT 1
1448 } ParallelCharDriver;
1450 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1452 if (s->mode != mode) {
1454 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1461 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1463 ParallelCharDriver *drv = chr->opaque;
1468 case CHR_IOCTL_PP_READ_DATA:
1469 if (ioctl(fd, PPRDATA, &b) < 0)
1471 *(uint8_t *)arg = b;
1473 case CHR_IOCTL_PP_WRITE_DATA:
1474 b = *(uint8_t *)arg;
1475 if (ioctl(fd, PPWDATA, &b) < 0)
1478 case CHR_IOCTL_PP_READ_CONTROL:
1479 if (ioctl(fd, PPRCONTROL, &b) < 0)
1481 /* Linux gives only the lowest bits, and no way to know data
1482 direction! For better compatibility set the fixed upper
1484 *(uint8_t *)arg = b | 0xc0;
1486 case CHR_IOCTL_PP_WRITE_CONTROL:
1487 b = *(uint8_t *)arg;
1488 if (ioctl(fd, PPWCONTROL, &b) < 0)
1491 case CHR_IOCTL_PP_READ_STATUS:
1492 if (ioctl(fd, PPRSTATUS, &b) < 0)
1494 *(uint8_t *)arg = b;
1496 case CHR_IOCTL_PP_DATA_DIR:
1497 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1500 case CHR_IOCTL_PP_EPP_READ_ADDR:
1501 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1502 struct ParallelIOArg *parg = arg;
1503 int n = read(fd, parg->buffer, parg->count);
1504 if (n != parg->count) {
1509 case CHR_IOCTL_PP_EPP_READ:
1510 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1511 struct ParallelIOArg *parg = arg;
1512 int n = read(fd, parg->buffer, parg->count);
1513 if (n != parg->count) {
1518 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1519 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1520 struct ParallelIOArg *parg = arg;
1521 int n = write(fd, parg->buffer, parg->count);
1522 if (n != parg->count) {
1527 case CHR_IOCTL_PP_EPP_WRITE:
1528 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1529 struct ParallelIOArg *parg = arg;
1530 int n = write(fd, parg->buffer, parg->count);
1531 if (n != parg->count) {
1542 static void pp_close(CharDriverState *chr)
1544 ParallelCharDriver *drv = chr->opaque;
1547 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1548 ioctl(fd, PPRELEASE);
1551 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1554 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1556 CharDriverState *chr;
1557 ParallelCharDriver *drv;
1559 if (ioctl(fd, PPCLAIM) < 0) {
1564 drv = g_malloc0(sizeof(ParallelCharDriver));
1566 drv->mode = IEEE1284_MODE_COMPAT;
1568 chr = g_malloc0(sizeof(CharDriverState));
1569 chr->chr_write = null_chr_write;
1570 chr->chr_ioctl = pp_ioctl;
1571 chr->chr_close = pp_close;
1574 qemu_chr_be_generic_open(chr);
1578 #endif /* __linux__ */
1580 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1582 #define HAVE_CHARDEV_PARPORT 1
1584 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1586 int fd = (int)(intptr_t)chr->opaque;
1590 case CHR_IOCTL_PP_READ_DATA:
1591 if (ioctl(fd, PPIGDATA, &b) < 0)
1593 *(uint8_t *)arg = b;
1595 case CHR_IOCTL_PP_WRITE_DATA:
1596 b = *(uint8_t *)arg;
1597 if (ioctl(fd, PPISDATA, &b) < 0)
1600 case CHR_IOCTL_PP_READ_CONTROL:
1601 if (ioctl(fd, PPIGCTRL, &b) < 0)
1603 *(uint8_t *)arg = b;
1605 case CHR_IOCTL_PP_WRITE_CONTROL:
1606 b = *(uint8_t *)arg;
1607 if (ioctl(fd, PPISCTRL, &b) < 0)
1610 case CHR_IOCTL_PP_READ_STATUS:
1611 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1613 *(uint8_t *)arg = b;
1621 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1623 CharDriverState *chr;
1625 chr = g_malloc0(sizeof(CharDriverState));
1626 chr->opaque = (void *)(intptr_t)fd;
1627 chr->chr_write = null_chr_write;
1628 chr->chr_ioctl = pp_ioctl;
1637 HANDLE hcom, hrecv, hsend;
1638 OVERLAPPED orecv, osend;
1645 HANDLE hInputReadyEvent;
1646 HANDLE hInputDoneEvent;
1647 HANDLE hInputThread;
1648 uint8_t win_stdio_buf;
1649 } WinStdioCharState;
1651 #define NSENDBUF 2048
1652 #define NRECVBUF 2048
1653 #define MAXCONNECT 1
1654 #define NTIMEOUT 5000
1656 static int win_chr_poll(void *opaque);
1657 static int win_chr_pipe_poll(void *opaque);
1659 static void win_chr_close(CharDriverState *chr)
1661 WinCharState *s = chr->opaque;
1664 CloseHandle(s->hsend);
1668 CloseHandle(s->hrecv);
1672 CloseHandle(s->hcom);
1676 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1678 qemu_del_polling_cb(win_chr_poll, chr);
1680 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1683 static int win_chr_init(CharDriverState *chr, const char *filename)
1685 WinCharState *s = chr->opaque;
1687 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1692 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1694 fprintf(stderr, "Failed CreateEvent\n");
1697 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1699 fprintf(stderr, "Failed CreateEvent\n");
1703 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1704 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1705 if (s->hcom == INVALID_HANDLE_VALUE) {
1706 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1711 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1712 fprintf(stderr, "Failed SetupComm\n");
1716 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1717 size = sizeof(COMMCONFIG);
1718 GetDefaultCommConfig(filename, &comcfg, &size);
1719 comcfg.dcb.DCBlength = sizeof(DCB);
1720 CommConfigDialog(filename, NULL, &comcfg);
1722 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1723 fprintf(stderr, "Failed SetCommState\n");
1727 if (!SetCommMask(s->hcom, EV_ERR)) {
1728 fprintf(stderr, "Failed SetCommMask\n");
1732 cto.ReadIntervalTimeout = MAXDWORD;
1733 if (!SetCommTimeouts(s->hcom, &cto)) {
1734 fprintf(stderr, "Failed SetCommTimeouts\n");
1738 if (!ClearCommError(s->hcom, &err, &comstat)) {
1739 fprintf(stderr, "Failed ClearCommError\n");
1742 qemu_add_polling_cb(win_chr_poll, chr);
1750 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1752 WinCharState *s = chr->opaque;
1753 DWORD len, ret, size, err;
1756 ZeroMemory(&s->osend, sizeof(s->osend));
1757 s->osend.hEvent = s->hsend;
1760 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1762 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1764 err = GetLastError();
1765 if (err == ERROR_IO_PENDING) {
1766 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1784 static int win_chr_read_poll(CharDriverState *chr)
1786 WinCharState *s = chr->opaque;
1788 s->max_size = qemu_chr_be_can_write(chr);
1792 static void win_chr_readfile(CharDriverState *chr)
1794 WinCharState *s = chr->opaque;
1796 uint8_t buf[READ_BUF_LEN];
1799 ZeroMemory(&s->orecv, sizeof(s->orecv));
1800 s->orecv.hEvent = s->hrecv;
1801 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1803 err = GetLastError();
1804 if (err == ERROR_IO_PENDING) {
1805 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1810 qemu_chr_be_write(chr, buf, size);
1814 static void win_chr_read(CharDriverState *chr)
1816 WinCharState *s = chr->opaque;
1818 if (s->len > s->max_size)
1819 s->len = s->max_size;
1823 win_chr_readfile(chr);
1826 static int win_chr_poll(void *opaque)
1828 CharDriverState *chr = opaque;
1829 WinCharState *s = chr->opaque;
1833 ClearCommError(s->hcom, &comerr, &status);
1834 if (status.cbInQue > 0) {
1835 s->len = status.cbInQue;
1836 win_chr_read_poll(chr);
1843 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1845 CharDriverState *chr;
1848 chr = g_malloc0(sizeof(CharDriverState));
1849 s = g_malloc0(sizeof(WinCharState));
1851 chr->chr_write = win_chr_write;
1852 chr->chr_close = win_chr_close;
1854 if (win_chr_init(chr, filename) < 0) {
1859 qemu_chr_be_generic_open(chr);
1863 static int win_chr_pipe_poll(void *opaque)
1865 CharDriverState *chr = opaque;
1866 WinCharState *s = chr->opaque;
1869 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1872 win_chr_read_poll(chr);
1879 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1881 WinCharState *s = chr->opaque;
1889 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1891 fprintf(stderr, "Failed CreateEvent\n");
1894 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1896 fprintf(stderr, "Failed CreateEvent\n");
1900 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1901 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1902 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1904 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1905 if (s->hcom == INVALID_HANDLE_VALUE) {
1906 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1911 ZeroMemory(&ov, sizeof(ov));
1912 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1913 ret = ConnectNamedPipe(s->hcom, &ov);
1915 fprintf(stderr, "Failed ConnectNamedPipe\n");
1919 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1921 fprintf(stderr, "Failed GetOverlappedResult\n");
1923 CloseHandle(ov.hEvent);
1930 CloseHandle(ov.hEvent);
1933 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1942 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
1944 const char *filename = opts->device;
1945 CharDriverState *chr;
1948 chr = g_malloc0(sizeof(CharDriverState));
1949 s = g_malloc0(sizeof(WinCharState));
1951 chr->chr_write = win_chr_write;
1952 chr->chr_close = win_chr_close;
1954 if (win_chr_pipe_init(chr, filename) < 0) {
1959 qemu_chr_be_generic_open(chr);
1963 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1965 CharDriverState *chr;
1968 chr = g_malloc0(sizeof(CharDriverState));
1969 s = g_malloc0(sizeof(WinCharState));
1972 chr->chr_write = win_chr_write;
1973 qemu_chr_be_generic_open(chr);
1977 static CharDriverState *qemu_chr_open_win_con(void)
1979 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1982 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1984 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1991 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
2001 static void win_stdio_wait_func(void *opaque)
2003 CharDriverState *chr = opaque;
2004 WinStdioCharState *stdio = chr->opaque;
2005 INPUT_RECORD buf[4];
2010 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
2014 /* Avoid error storm */
2015 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
2019 for (i = 0; i < dwSize; i++) {
2020 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2022 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2024 if (kev->uChar.AsciiChar != 0) {
2025 for (j = 0; j < kev->wRepeatCount; j++) {
2026 if (qemu_chr_be_can_write(chr)) {
2027 uint8_t c = kev->uChar.AsciiChar;
2028 qemu_chr_be_write(chr, &c, 1);
2036 static DWORD WINAPI win_stdio_thread(LPVOID param)
2038 CharDriverState *chr = param;
2039 WinStdioCharState *stdio = chr->opaque;
2045 /* Wait for one byte */
2046 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2048 /* Exit in case of error, continue if nothing read */
2056 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2057 if (stdio->win_stdio_buf == '\r') {
2061 /* Signal the main thread and wait until the byte was eaten */
2062 if (!SetEvent(stdio->hInputReadyEvent)) {
2065 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2071 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2075 static void win_stdio_thread_wait_func(void *opaque)
2077 CharDriverState *chr = opaque;
2078 WinStdioCharState *stdio = chr->opaque;
2080 if (qemu_chr_be_can_write(chr)) {
2081 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2084 SetEvent(stdio->hInputDoneEvent);
2087 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2089 WinStdioCharState *stdio = chr->opaque;
2092 GetConsoleMode(stdio->hStdIn, &dwMode);
2095 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2097 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2101 static void win_stdio_close(CharDriverState *chr)
2103 WinStdioCharState *stdio = chr->opaque;
2105 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2106 CloseHandle(stdio->hInputReadyEvent);
2108 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2109 CloseHandle(stdio->hInputDoneEvent);
2111 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2112 TerminateThread(stdio->hInputThread, 0);
2115 g_free(chr->opaque);
2119 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
2121 CharDriverState *chr;
2122 WinStdioCharState *stdio;
2126 chr = g_malloc0(sizeof(CharDriverState));
2127 stdio = g_malloc0(sizeof(WinStdioCharState));
2129 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2130 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2131 fprintf(stderr, "cannot open stdio: invalid handle\n");
2135 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2137 chr->opaque = stdio;
2138 chr->chr_write = win_stdio_write;
2139 chr->chr_close = win_stdio_close;
2142 if (qemu_add_wait_object(stdio->hStdIn,
2143 win_stdio_wait_func, chr)) {
2144 fprintf(stderr, "qemu_add_wait_object: failed\n");
2149 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2150 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2151 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2154 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2155 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2156 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2157 fprintf(stderr, "cannot create stdio thread or event\n");
2160 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2161 win_stdio_thread_wait_func, chr)) {
2162 fprintf(stderr, "qemu_add_wait_object: failed\n");
2166 dwMode |= ENABLE_LINE_INPUT;
2169 /* set the terminal in raw mode */
2170 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2171 dwMode |= ENABLE_PROCESSED_INPUT;
2174 SetConsoleMode(stdio->hStdIn, dwMode);
2176 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2177 qemu_chr_fe_set_echo(chr, false);
2181 #endif /* !_WIN32 */
2184 /***********************************************************/
2185 /* UDP Net console */
2191 uint8_t buf[READ_BUF_LEN];
2197 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2199 NetCharDriver *s = chr->opaque;
2200 gsize bytes_written;
2203 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2204 if (status == G_IO_STATUS_EOF) {
2206 } else if (status != G_IO_STATUS_NORMAL) {
2210 return bytes_written;
2213 static int udp_chr_read_poll(void *opaque)
2215 CharDriverState *chr = opaque;
2216 NetCharDriver *s = chr->opaque;
2218 s->max_size = qemu_chr_be_can_write(chr);
2220 /* If there were any stray characters in the queue process them
2223 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2224 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2226 s->max_size = qemu_chr_be_can_write(chr);
2231 static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2233 CharDriverState *chr = opaque;
2234 NetCharDriver *s = chr->opaque;
2235 gsize bytes_read = 0;
2238 if (s->max_size == 0)
2240 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2242 s->bufcnt = bytes_read;
2243 s->bufptr = s->bufcnt;
2244 if (status != G_IO_STATUS_NORMAL) {
2249 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2250 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2252 s->max_size = qemu_chr_be_can_write(chr);
2258 static void udp_chr_update_read_handler(CharDriverState *chr)
2260 NetCharDriver *s = chr->opaque;
2263 g_source_remove(s->tag);
2268 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
2272 static void udp_chr_close(CharDriverState *chr)
2274 NetCharDriver *s = chr->opaque;
2276 g_source_remove(s->tag);
2279 g_io_channel_unref(s->chan);
2283 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2286 static CharDriverState *qemu_chr_open_udp_fd(int fd)
2288 CharDriverState *chr = NULL;
2289 NetCharDriver *s = NULL;
2291 chr = g_malloc0(sizeof(CharDriverState));
2292 s = g_malloc0(sizeof(NetCharDriver));
2295 s->chan = io_channel_from_socket(s->fd);
2299 chr->chr_write = udp_chr_write;
2300 chr->chr_update_read_handler = udp_chr_update_read_handler;
2301 chr->chr_close = udp_chr_close;
2305 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2307 Error *local_err = NULL;
2310 fd = inet_dgram_opts(opts, &local_err);
2314 return qemu_chr_open_udp_fd(fd);
2317 /***********************************************************/
2318 /* TCP Net console */
2322 GIOChannel *chan, *listen_chan;
2323 guint tag, listen_tag;
2333 static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
2335 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2337 TCPCharDriver *s = chr->opaque;
2339 return io_channel_send(s->chan, buf, len);
2341 /* XXX: indicate an error ? */
2346 static int tcp_chr_read_poll(void *opaque)
2348 CharDriverState *chr = opaque;
2349 TCPCharDriver *s = chr->opaque;
2352 s->max_size = qemu_chr_be_can_write(chr);
2357 #define IAC_BREAK 243
2358 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2360 uint8_t *buf, int *size)
2362 /* Handle any telnet client's basic IAC options to satisfy char by
2363 * char mode with no echo. All IAC options will be removed from
2364 * the buf and the do_telnetopt variable will be used to track the
2365 * state of the width of the IAC information.
2367 * IAC commands come in sets of 3 bytes with the exception of the
2368 * "IAC BREAK" command and the double IAC.
2374 for (i = 0; i < *size; i++) {
2375 if (s->do_telnetopt > 1) {
2376 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2377 /* Double IAC means send an IAC */
2381 s->do_telnetopt = 1;
2383 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2384 /* Handle IAC break commands by sending a serial break */
2385 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2390 if (s->do_telnetopt >= 4) {
2391 s->do_telnetopt = 1;
2394 if ((unsigned char)buf[i] == IAC) {
2395 s->do_telnetopt = 2;
2406 static int tcp_get_msgfd(CharDriverState *chr)
2408 TCPCharDriver *s = chr->opaque;
2415 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2417 TCPCharDriver *s = chr->opaque;
2418 struct cmsghdr *cmsg;
2420 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2423 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2424 cmsg->cmsg_level != SOL_SOCKET ||
2425 cmsg->cmsg_type != SCM_RIGHTS)
2428 fd = *((int *)CMSG_DATA(cmsg));
2432 /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
2435 #ifndef MSG_CMSG_CLOEXEC
2436 qemu_set_cloexec(fd);
2444 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2446 TCPCharDriver *s = chr->opaque;
2447 struct msghdr msg = { NULL, };
2448 struct iovec iov[1];
2450 struct cmsghdr cmsg;
2451 char control[CMSG_SPACE(sizeof(int))];
2456 iov[0].iov_base = buf;
2457 iov[0].iov_len = len;
2461 msg.msg_control = &msg_control;
2462 msg.msg_controllen = sizeof(msg_control);
2464 #ifdef MSG_CMSG_CLOEXEC
2465 flags |= MSG_CMSG_CLOEXEC;
2467 ret = recvmsg(s->fd, &msg, flags);
2468 if (ret > 0 && s->is_unix) {
2469 unix_process_msgfd(chr, &msg);
2475 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2477 TCPCharDriver *s = chr->opaque;
2478 return qemu_recv(s->fd, buf, len, 0);
2482 static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2484 TCPCharDriver *s = chr->opaque;
2485 return g_io_create_watch(s->chan, cond);
2488 static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2490 CharDriverState *chr = opaque;
2491 TCPCharDriver *s = chr->opaque;
2492 uint8_t buf[READ_BUF_LEN];
2495 if (!s->connected || s->max_size <= 0) {
2499 if (len > s->max_size)
2501 size = tcp_chr_recv(chr, (void *)buf, len);
2503 /* connection closed */
2505 if (s->listen_chan) {
2506 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2508 g_source_remove(s->tag);
2510 g_io_channel_unref(s->chan);
2514 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2515 } else if (size > 0) {
2516 if (s->do_telnetopt)
2517 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2519 qemu_chr_be_write(chr, buf, size);
2526 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2528 return qemu_chr_open_fd(eventfd, eventfd);
2532 static void tcp_chr_connect(void *opaque)
2534 CharDriverState *chr = opaque;
2535 TCPCharDriver *s = chr->opaque;
2539 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
2541 qemu_chr_be_generic_open(chr);
2544 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2545 static void tcp_chr_telnet_init(int fd)
2548 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2549 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2550 send(fd, (char *)buf, 3, 0);
2551 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2552 send(fd, (char *)buf, 3, 0);
2553 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2554 send(fd, (char *)buf, 3, 0);
2555 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2556 send(fd, (char *)buf, 3, 0);
2559 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2561 TCPCharDriver *s = chr->opaque;
2565 qemu_set_nonblock(fd);
2567 socket_set_nodelay(fd);
2569 s->chan = io_channel_from_socket(fd);
2570 g_source_remove(s->listen_tag);
2572 tcp_chr_connect(chr);
2577 static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
2579 CharDriverState *chr = opaque;
2580 TCPCharDriver *s = chr->opaque;
2581 struct sockaddr_in saddr;
2583 struct sockaddr_un uaddr;
2585 struct sockaddr *addr;
2592 len = sizeof(uaddr);
2593 addr = (struct sockaddr *)&uaddr;
2597 len = sizeof(saddr);
2598 addr = (struct sockaddr *)&saddr;
2600 fd = qemu_accept(s->listen_fd, addr, &len);
2601 if (fd < 0 && errno != EINTR) {
2603 } else if (fd >= 0) {
2604 if (s->do_telnetopt)
2605 tcp_chr_telnet_init(fd);
2609 if (tcp_chr_add_client(chr, fd) < 0)
2615 static void tcp_chr_close(CharDriverState *chr)
2617 TCPCharDriver *s = chr->opaque;
2620 g_source_remove(s->tag);
2623 g_io_channel_unref(s->chan);
2627 if (s->listen_fd >= 0) {
2628 if (s->listen_tag) {
2629 g_source_remove(s->listen_tag);
2631 if (s->listen_chan) {
2632 g_io_channel_unref(s->listen_chan);
2634 closesocket(s->listen_fd);
2637 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2640 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2641 bool is_listen, bool is_telnet,
2642 bool is_waitconnect,
2645 CharDriverState *chr = NULL;
2646 TCPCharDriver *s = NULL;
2647 char host[NI_MAXHOST], serv[NI_MAXSERV];
2648 const char *left = "", *right = "";
2649 struct sockaddr_storage ss;
2650 socklen_t ss_len = sizeof(ss);
2652 memset(&ss, 0, ss_len);
2653 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2654 error_setg(errp, "getsockname: %s", strerror(errno));
2658 chr = g_malloc0(sizeof(CharDriverState));
2659 s = g_malloc0(sizeof(TCPCharDriver));
2666 chr->filename = g_malloc(256);
2667 switch (ss.ss_family) {
2671 snprintf(chr->filename, 256, "unix:%s%s",
2672 ((struct sockaddr_un *)(&ss))->sun_path,
2673 is_listen ? ",server" : "");
2681 s->do_nodelay = do_nodelay;
2682 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2683 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2684 snprintf(chr->filename, 256, "%s:%s%s%s:%s%s",
2685 is_telnet ? "telnet" : "tcp",
2686 left, host, right, serv,
2687 is_listen ? ",server" : "");
2692 chr->chr_write = tcp_chr_write;
2693 chr->chr_close = tcp_chr_close;
2694 chr->get_msgfd = tcp_get_msgfd;
2695 chr->chr_add_client = tcp_chr_add_client;
2696 chr->chr_add_watch = tcp_chr_add_watch;
2700 s->listen_chan = io_channel_from_socket(s->listen_fd);
2701 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2703 s->do_telnetopt = 1;
2708 socket_set_nodelay(fd);
2709 s->chan = io_channel_from_socket(s->fd);
2710 tcp_chr_connect(chr);
2713 if (is_listen && is_waitconnect) {
2714 printf("QEMU waiting for connection on: %s\n",
2716 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
2717 qemu_set_nonblock(s->listen_fd);
2722 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2724 CharDriverState *chr = NULL;
2725 Error *local_err = NULL;
2733 is_listen = qemu_opt_get_bool(opts, "server", 0);
2734 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2735 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2736 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2737 is_unix = qemu_opt_get(opts, "path") != NULL;
2743 fd = unix_listen_opts(opts, &local_err);
2745 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2749 fd = inet_listen_opts(opts, 0, &local_err);
2751 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2758 if (!is_waitconnect)
2759 qemu_set_nonblock(fd);
2761 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2762 is_waitconnect, &local_err);
2763 if (error_is_set(&local_err)) {
2771 qerror_report_err(local_err);
2772 error_free(local_err);
2778 g_free(chr->opaque);
2784 /*********************************************************/
2785 /* Ring buffer chardev */
2792 } RingBufCharDriver;
2794 static size_t ringbuf_count(const CharDriverState *chr)
2796 const RingBufCharDriver *d = chr->opaque;
2798 return d->prod - d->cons;
2801 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2803 RingBufCharDriver *d = chr->opaque;
2806 if (!buf || (len < 0)) {
2810 for (i = 0; i < len; i++ ) {
2811 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2812 if (d->prod - d->cons > d->size) {
2813 d->cons = d->prod - d->size;
2820 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2822 RingBufCharDriver *d = chr->opaque;
2825 for (i = 0; i < len && d->cons != d->prod; i++) {
2826 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2832 static void ringbuf_chr_close(struct CharDriverState *chr)
2834 RingBufCharDriver *d = chr->opaque;
2841 static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
2844 CharDriverState *chr;
2845 RingBufCharDriver *d;
2847 chr = g_malloc0(sizeof(CharDriverState));
2848 d = g_malloc(sizeof(*d));
2850 d->size = opts->has_size ? opts->size : 65536;
2852 /* The size must be power of 2 */
2853 if (d->size & (d->size - 1)) {
2854 error_setg(errp, "size of ringbuf chardev must be power of two");
2860 d->cbuf = g_malloc0(d->size);
2863 chr->chr_write = ringbuf_chr_write;
2864 chr->chr_close = ringbuf_chr_close;
2874 static bool chr_is_ringbuf(const CharDriverState *chr)
2876 return chr->chr_write == ringbuf_chr_write;
2879 void qmp_ringbuf_write(const char *device, const char *data,
2880 bool has_format, enum DataFormat format,
2883 CharDriverState *chr;
2884 const uint8_t *write_data;
2888 chr = qemu_chr_find(device);
2890 error_setg(errp, "Device '%s' not found", device);
2894 if (!chr_is_ringbuf(chr)) {
2895 error_setg(errp,"%s is not a ringbuf device", device);
2899 if (has_format && (format == DATA_FORMAT_BASE64)) {
2900 write_data = g_base64_decode(data, &write_count);
2902 write_data = (uint8_t *)data;
2903 write_count = strlen(data);
2906 ret = ringbuf_chr_write(chr, write_data, write_count);
2908 if (write_data != (uint8_t *)data) {
2909 g_free((void *)write_data);
2913 error_setg(errp, "Failed to write to device %s", device);
2918 char *qmp_ringbuf_read(const char *device, int64_t size,
2919 bool has_format, enum DataFormat format,
2922 CharDriverState *chr;
2927 chr = qemu_chr_find(device);
2929 error_setg(errp, "Device '%s' not found", device);
2933 if (!chr_is_ringbuf(chr)) {
2934 error_setg(errp,"%s is not a ringbuf device", device);
2939 error_setg(errp, "size must be greater than zero");
2943 count = ringbuf_count(chr);
2944 size = size > count ? count : size;
2945 read_data = g_malloc(size + 1);
2947 ringbuf_chr_read(chr, read_data, size);
2949 if (has_format && (format == DATA_FORMAT_BASE64)) {
2950 data = g_base64_encode(read_data, size);
2954 * FIXME should read only complete, valid UTF-8 characters up
2955 * to @size bytes. Invalid sequences should be replaced by a
2956 * suitable replacement character. Except when (and only
2957 * when) ring buffer lost characters since last read, initial
2958 * continuation characters should be dropped.
2960 read_data[size] = 0;
2961 data = (char *)read_data;
2967 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2969 char host[65], port[33], width[8], height[8];
2973 Error *local_err = NULL;
2975 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
2976 if (error_is_set(&local_err)) {
2977 qerror_report_err(local_err);
2978 error_free(local_err);
2982 if (strstart(filename, "mon:", &p)) {
2984 qemu_opt_set(opts, "mux", "on");
2987 if (strcmp(filename, "null") == 0 ||
2988 strcmp(filename, "pty") == 0 ||
2989 strcmp(filename, "msmouse") == 0 ||
2990 strcmp(filename, "braille") == 0 ||
2991 strcmp(filename, "stdio") == 0) {
2992 qemu_opt_set(opts, "backend", filename);
2995 if (strstart(filename, "vc", &p)) {
2996 qemu_opt_set(opts, "backend", "vc");
2998 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3000 qemu_opt_set(opts, "width", width);
3001 qemu_opt_set(opts, "height", height);
3002 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3004 qemu_opt_set(opts, "cols", width);
3005 qemu_opt_set(opts, "rows", height);
3012 if (strcmp(filename, "con:") == 0) {
3013 qemu_opt_set(opts, "backend", "console");
3016 if (strstart(filename, "COM", NULL)) {
3017 qemu_opt_set(opts, "backend", "serial");
3018 qemu_opt_set(opts, "path", filename);
3021 if (strstart(filename, "file:", &p)) {
3022 qemu_opt_set(opts, "backend", "file");
3023 qemu_opt_set(opts, "path", p);
3026 if (strstart(filename, "pipe:", &p)) {
3027 qemu_opt_set(opts, "backend", "pipe");
3028 qemu_opt_set(opts, "path", p);
3031 if (strstart(filename, "tcp:", &p) ||
3032 strstart(filename, "telnet:", &p)) {
3033 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3035 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3038 qemu_opt_set(opts, "backend", "socket");
3039 qemu_opt_set(opts, "host", host);
3040 qemu_opt_set(opts, "port", port);
3041 if (p[pos] == ',') {
3042 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3045 if (strstart(filename, "telnet:", &p))
3046 qemu_opt_set(opts, "telnet", "on");
3049 if (strstart(filename, "udp:", &p)) {
3050 qemu_opt_set(opts, "backend", "udp");
3051 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3053 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3057 qemu_opt_set(opts, "host", host);
3058 qemu_opt_set(opts, "port", port);
3059 if (p[pos] == '@') {
3061 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3063 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3067 qemu_opt_set(opts, "localaddr", host);
3068 qemu_opt_set(opts, "localport", port);
3072 if (strstart(filename, "unix:", &p)) {
3073 qemu_opt_set(opts, "backend", "socket");
3074 if (qemu_opts_do_parse(opts, p, "path") != 0)
3078 if (strstart(filename, "/dev/parport", NULL) ||
3079 strstart(filename, "/dev/ppi", NULL)) {
3080 qemu_opt_set(opts, "backend", "parport");
3081 qemu_opt_set(opts, "path", filename);
3084 if (strstart(filename, "/dev/", NULL)) {
3085 qemu_opt_set(opts, "backend", "tty");
3086 qemu_opt_set(opts, "path", filename);
3091 qemu_opts_del(opts);
3095 static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3098 const char *path = qemu_opt_get(opts, "path");
3101 error_setg(errp, "chardev: file: no filename given");
3104 backend->file = g_new0(ChardevFile, 1);
3105 backend->file->out = g_strdup(path);
3108 static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3111 backend->stdio = g_new0(ChardevStdio, 1);
3112 backend->stdio->has_signal = true;
3113 backend->stdio->signal =
3114 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3117 static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3120 const char *device = qemu_opt_get(opts, "path");
3122 if (device == NULL) {
3123 error_setg(errp, "chardev: serial/tty: no device path given");
3126 backend->serial = g_new0(ChardevHostdev, 1);
3127 backend->serial->device = g_strdup(device);
3130 static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3133 const char *device = qemu_opt_get(opts, "path");
3135 if (device == NULL) {
3136 error_setg(errp, "chardev: parallel: no device path given");
3139 backend->parallel = g_new0(ChardevHostdev, 1);
3140 backend->parallel->device = g_strdup(device);
3143 static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
3146 const char *device = qemu_opt_get(opts, "path");
3148 if (device == NULL) {
3149 error_setg(errp, "chardev: pipe: no device path given");
3152 backend->pipe = g_new0(ChardevHostdev, 1);
3153 backend->pipe->device = g_strdup(device);
3156 static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend,
3161 backend->memory = g_new0(ChardevRingbuf, 1);
3163 val = qemu_opt_get_number(opts, "size", 0);
3165 backend->memory->has_size = true;
3166 backend->memory->size = val;
3170 typedef struct CharDriver {
3173 CharDriverState *(*open)(QemuOpts *opts);
3174 /* new, qapi-based */
3176 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
3179 static GSList *backends;
3181 void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3185 s = g_malloc0(sizeof(*s));
3186 s->name = g_strdup(name);
3189 backends = g_slist_append(backends, s);
3192 void register_char_driver_qapi(const char *name, int kind,
3193 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3197 s = g_malloc0(sizeof(*s));
3198 s->name = g_strdup(name);
3202 backends = g_slist_append(backends, s);
3205 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3206 void (*init)(struct CharDriverState *s),
3210 CharDriverState *chr;
3213 if (qemu_opts_id(opts) == NULL) {
3214 error_setg(errp, "chardev: no id specified");
3218 if (qemu_opt_get(opts, "backend") == NULL) {
3219 error_setg(errp, "chardev: \"%s\" missing backend",
3220 qemu_opts_id(opts));
3223 for (i = backends; i; i = i->next) {
3226 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
3231 error_setg(errp, "chardev: backend \"%s\" not found",
3232 qemu_opt_get(opts, "backend"));
3237 /* using new, qapi init */
3238 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3239 ChardevReturn *ret = NULL;
3240 const char *id = qemu_opts_id(opts);
3241 const char *bid = NULL;
3243 if (qemu_opt_get_bool(opts, "mux", 0)) {
3244 bid = g_strdup_printf("%s-base", id);
3248 backend->kind = cd->kind;
3250 cd->parse(opts, backend, errp);
3251 if (error_is_set(errp)) {
3255 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
3256 if (error_is_set(errp)) {
3261 qapi_free_ChardevBackend(backend);
3262 qapi_free_ChardevReturn(ret);
3263 backend = g_new0(ChardevBackend, 1);
3264 backend->mux = g_new0(ChardevMux, 1);
3265 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3266 backend->mux->chardev = g_strdup(bid);
3267 ret = qmp_chardev_add(id, backend, errp);
3268 if (error_is_set(errp)) {
3273 chr = qemu_chr_find(id);
3276 qapi_free_ChardevBackend(backend);
3277 qapi_free_ChardevReturn(ret);
3281 chr = cd->open(opts);
3283 error_setg(errp, "chardev: opening backend \"%s\" failed",
3284 qemu_opt_get(opts, "backend"));
3289 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3291 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3293 if (qemu_opt_get_bool(opts, "mux", 0)) {
3294 CharDriverState *base = chr;
3295 int len = strlen(qemu_opts_id(opts)) + 6;
3296 base->label = g_malloc(len);
3297 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3298 chr = qemu_chr_open_mux(base);
3299 chr->filename = base->filename;
3300 chr->avail_connections = MAX_MUX;
3301 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3303 chr->avail_connections = 1;
3305 chr->label = g_strdup(qemu_opts_id(opts));
3310 qemu_opts_del(opts);
3314 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3317 CharDriverState *chr;
3321 if (strstart(filename, "chardev:", &p)) {
3322 return qemu_chr_find(p);
3325 opts = qemu_chr_parse_compat(label, filename);
3329 chr = qemu_chr_new_from_opts(opts, init, &err);
3330 if (error_is_set(&err)) {
3331 fprintf(stderr, "%s\n", error_get_pretty(err));
3334 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3335 qemu_chr_fe_claim_no_fail(chr);
3336 monitor_init(chr, MONITOR_USE_READLINE);
3341 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3343 if (chr->chr_set_echo) {
3344 chr->chr_set_echo(chr, echo);
3348 void qemu_chr_fe_set_open(struct CharDriverState *chr, int fe_open)
3350 if (chr->fe_open == fe_open) {
3353 chr->fe_open = fe_open;
3354 if (chr->chr_set_fe_open) {
3355 chr->chr_set_fe_open(chr, fe_open);
3359 int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3360 GIOFunc func, void *user_data)
3365 if (s->chr_add_watch == NULL) {
3369 src = s->chr_add_watch(s, cond);
3370 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3371 tag = g_source_attach(src, NULL);
3372 g_source_unref(src);
3377 int qemu_chr_fe_claim(CharDriverState *s)
3379 if (s->avail_connections < 1) {
3382 s->avail_connections--;
3386 void qemu_chr_fe_claim_no_fail(CharDriverState *s)
3388 if (qemu_chr_fe_claim(s) != 0) {
3389 fprintf(stderr, "%s: error chardev \"%s\" already used\n",
3390 __func__, s->label);
3395 void qemu_chr_fe_release(CharDriverState *s)
3397 s->avail_connections++;
3400 void qemu_chr_delete(CharDriverState *chr)
3402 QTAILQ_REMOVE(&chardevs, chr, next);
3403 if (chr->chr_close) {
3404 chr->chr_close(chr);
3406 g_free(chr->filename);
3409 qemu_opts_del(chr->opts);
3414 ChardevInfoList *qmp_query_chardev(Error **errp)
3416 ChardevInfoList *chr_list = NULL;
3417 CharDriverState *chr;
3419 QTAILQ_FOREACH(chr, &chardevs, next) {
3420 ChardevInfoList *info = g_malloc0(sizeof(*info));
3421 info->value = g_malloc0(sizeof(*info->value));
3422 info->value->label = g_strdup(chr->label);
3423 info->value->filename = g_strdup(chr->filename);
3425 info->next = chr_list;
3432 CharDriverState *qemu_chr_find(const char *name)
3434 CharDriverState *chr;
3436 QTAILQ_FOREACH(chr, &chardevs, next) {
3437 if (strcmp(chr->label, name) != 0)
3444 /* Get a character (serial) device interface. */
3445 CharDriverState *qemu_char_get_next_serial(void)
3447 static int next_serial;
3448 CharDriverState *chr;
3450 /* FIXME: This function needs to go away: use chardev properties! */
3452 while (next_serial < MAX_SERIAL_PORTS && serial_hds[next_serial]) {
3453 chr = serial_hds[next_serial++];
3454 qemu_chr_fe_claim_no_fail(chr);
3460 QemuOptsList qemu_chardev_opts = {
3462 .implied_opt_name = "backend",
3463 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3467 .type = QEMU_OPT_STRING,
3470 .type = QEMU_OPT_STRING,
3473 .type = QEMU_OPT_STRING,
3476 .type = QEMU_OPT_STRING,
3478 .name = "localaddr",
3479 .type = QEMU_OPT_STRING,
3481 .name = "localport",
3482 .type = QEMU_OPT_STRING,
3485 .type = QEMU_OPT_NUMBER,
3488 .type = QEMU_OPT_BOOL,
3491 .type = QEMU_OPT_BOOL,
3494 .type = QEMU_OPT_BOOL,
3497 .type = QEMU_OPT_BOOL,
3500 .type = QEMU_OPT_BOOL,
3503 .type = QEMU_OPT_BOOL,
3506 .type = QEMU_OPT_NUMBER,
3509 .type = QEMU_OPT_NUMBER,
3512 .type = QEMU_OPT_NUMBER,
3515 .type = QEMU_OPT_NUMBER,
3518 .type = QEMU_OPT_BOOL,
3521 .type = QEMU_OPT_BOOL,
3524 .type = QEMU_OPT_STRING,
3527 .type = QEMU_OPT_NUMBER,
3530 .type = QEMU_OPT_SIZE,
3532 { /* end of list */ }
3538 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3543 error_setg(errp, "input file not supported");
3547 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3548 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3549 if (out == INVALID_HANDLE_VALUE) {
3550 error_setg(errp, "open %s failed", file->out);
3553 return qemu_chr_open_win_file(out);
3556 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3559 return qemu_chr_open_win_path(serial->device);
3562 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3565 error_setg(errp, "character device backend type 'parallel' not supported");
3571 static int qmp_chardev_open_file_source(char *src, int flags,
3576 TFR(fd = qemu_open(src, flags, 0666));
3578 error_setg(errp, "open %s: %s", src, strerror(errno));
3583 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3585 int flags, in = -1, out = -1;
3587 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3588 out = qmp_chardev_open_file_source(file->out, flags, errp);
3589 if (error_is_set(errp)) {
3595 in = qmp_chardev_open_file_source(file->in, flags, errp);
3596 if (error_is_set(errp)) {
3602 return qemu_chr_open_fd(in, out);
3605 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3608 #ifdef HAVE_CHARDEV_TTY
3611 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3612 if (error_is_set(errp)) {
3615 qemu_set_nonblock(fd);
3616 return qemu_chr_open_tty_fd(fd);
3618 error_setg(errp, "character device backend type 'serial' not supported");
3623 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3626 #ifdef HAVE_CHARDEV_PARPORT
3629 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3630 if (error_is_set(errp)) {
3633 return qemu_chr_open_pp_fd(fd);
3635 error_setg(errp, "character device backend type 'parallel' not supported");
3642 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3645 SocketAddress *addr = sock->addr;
3646 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3647 bool is_listen = sock->has_server ? sock->server : true;
3648 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3649 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3653 fd = socket_listen(addr, errp);
3655 fd = socket_connect(addr, errp, NULL, NULL);
3657 if (error_is_set(errp)) {
3660 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3661 is_telnet, is_waitconnect, errp);
3664 static CharDriverState *qmp_chardev_open_dgram(ChardevDgram *dgram,
3669 fd = socket_dgram(dgram->remote, dgram->local, errp);
3670 if (error_is_set(errp)) {
3673 return qemu_chr_open_udp_fd(fd);
3676 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3679 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3680 CharDriverState *base, *chr = NULL;
3682 chr = qemu_chr_find(id);
3684 error_setg(errp, "Chardev '%s' already exists", id);
3689 switch (backend->kind) {
3690 case CHARDEV_BACKEND_KIND_FILE:
3691 chr = qmp_chardev_open_file(backend->file, errp);
3693 case CHARDEV_BACKEND_KIND_SERIAL:
3694 chr = qmp_chardev_open_serial(backend->serial, errp);
3696 case CHARDEV_BACKEND_KIND_PARALLEL:
3697 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3699 case CHARDEV_BACKEND_KIND_PIPE:
3700 chr = qemu_chr_open_pipe(backend->pipe);
3702 case CHARDEV_BACKEND_KIND_SOCKET:
3703 chr = qmp_chardev_open_socket(backend->socket, errp);
3705 case CHARDEV_BACKEND_KIND_DGRAM:
3706 chr = qmp_chardev_open_dgram(backend->dgram, errp);
3708 #ifdef HAVE_CHARDEV_TTY
3709 case CHARDEV_BACKEND_KIND_PTY:
3710 chr = qemu_chr_open_pty(id, ret);
3713 case CHARDEV_BACKEND_KIND_NULL:
3714 chr = qemu_chr_open_null();
3716 case CHARDEV_BACKEND_KIND_MUX:
3717 base = qemu_chr_find(backend->mux->chardev);
3719 error_setg(errp, "mux: base chardev %s not found",
3720 backend->mux->chardev);
3723 chr = qemu_chr_open_mux(base);
3725 case CHARDEV_BACKEND_KIND_MSMOUSE:
3726 chr = qemu_chr_open_msmouse();
3728 #ifdef CONFIG_BRLAPI
3729 case CHARDEV_BACKEND_KIND_BRAILLE:
3730 chr = chr_baum_init();
3733 case CHARDEV_BACKEND_KIND_STDIO:
3734 chr = qemu_chr_open_stdio(backend->stdio);
3737 case CHARDEV_BACKEND_KIND_CONSOLE:
3738 chr = qemu_chr_open_win_con();
3742 case CHARDEV_BACKEND_KIND_SPICEVMC:
3743 chr = qemu_chr_open_spice_vmc(backend->spicevmc->type);
3745 case CHARDEV_BACKEND_KIND_SPICEPORT:
3746 chr = qemu_chr_open_spice_port(backend->spiceport->fqdn);
3749 case CHARDEV_BACKEND_KIND_VC:
3750 chr = vc_init(backend->vc);
3752 case CHARDEV_BACKEND_KIND_MEMORY:
3753 chr = qemu_chr_open_ringbuf(backend->memory, errp);
3756 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3760 if (chr == NULL && !error_is_set(errp)) {
3761 error_setg(errp, "Failed to create chardev");
3764 chr->label = g_strdup(id);
3765 chr->avail_connections =
3766 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
3767 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3775 void qmp_chardev_remove(const char *id, Error **errp)
3777 CharDriverState *chr;
3779 chr = qemu_chr_find(id);
3781 error_setg(errp, "Chardev '%s' not found", id);
3784 if (chr->chr_can_read || chr->chr_read ||
3785 chr->chr_event || chr->handler_opaque) {
3786 error_setg(errp, "Chardev '%s' is busy", id);
3789 qemu_chr_delete(chr);
3792 static void register_types(void)
3794 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
3795 register_char_driver("socket", qemu_chr_open_socket);
3796 register_char_driver("udp", qemu_chr_open_udp);
3797 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
3798 qemu_chr_parse_ringbuf);
3799 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3800 qemu_chr_parse_file_out);
3801 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3802 qemu_chr_parse_stdio);
3803 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3804 qemu_chr_parse_serial);
3805 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3806 qemu_chr_parse_serial);
3807 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3808 qemu_chr_parse_parallel);
3809 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3810 qemu_chr_parse_parallel);
3811 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
3812 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
3813 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
3814 qemu_chr_parse_pipe);
3817 type_init(register_types);