4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu-common.h"
25 #include "monitor/monitor.h"
26 #include "ui/console.h"
27 #include "sysemu/sysemu.h"
28 #include "qemu/timer.h"
29 #include "char/char.h"
31 #include "qmp-commands.h"
41 #include <sys/times.h>
45 #include <sys/ioctl.h>
46 #include <sys/resource.h>
47 #include <sys/socket.h>
48 #include <netinet/in.h>
50 #include <arpa/inet.h>
53 #include <sys/select.h>
56 #if defined(__GLIBC__)
58 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
63 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
64 #include <dev/ppbus/ppi.h>
65 #include <dev/ppbus/ppbconf.h>
66 #elif defined(__DragonFly__)
67 #include <dev/misc/ppi/ppi.h>
68 #include <bus/ppbus/ppbconf.h>
74 #include <linux/ppdev.h>
75 #include <linux/parport.h>
79 #include <sys/ethernet.h>
80 #include <sys/sockio.h>
81 #include <netinet/arp.h>
82 #include <netinet/in.h>
83 #include <netinet/in_systm.h>
84 #include <netinet/ip.h>
85 #include <netinet/ip_icmp.h> // must come after ip.h
86 #include <netinet/udp.h>
87 #include <netinet/tcp.h>
95 #include "qemu/sockets.h"
96 #include "ui/qemu-spice.h"
98 #define READ_BUF_LEN 4096
100 /***********************************************************/
101 /* character device */
103 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
104 QTAILQ_HEAD_INITIALIZER(chardevs);
106 void qemu_chr_be_event(CharDriverState *s, int event)
108 /* Keep track if the char device is open */
110 case CHR_EVENT_OPENED:
113 case CHR_EVENT_CLOSED:
120 s->chr_event(s->handler_opaque, event);
123 static gboolean qemu_chr_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) {
227 /* chr driver being released. */
228 ++s->avail_connections;
233 s->chr_can_read = fd_can_read;
234 s->chr_read = fd_read;
235 s->chr_event = fd_event;
236 s->handler_opaque = opaque;
237 if (s->chr_update_read_handler)
238 s->chr_update_read_handler(s);
240 if (!s->explicit_fe_open) {
241 qemu_chr_fe_set_open(s, fe_open);
244 /* We're connecting to an already opened device, so let's make sure we
245 also get the open event */
247 qemu_chr_be_generic_open(s);
251 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
256 static CharDriverState *qemu_chr_open_null(void)
258 CharDriverState *chr;
260 chr = g_malloc0(sizeof(CharDriverState));
261 chr->chr_write = null_chr_write;
265 /* MUX driver for serial I/O splitting */
267 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
268 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
270 IOCanReadHandler *chr_can_read[MAX_MUX];
271 IOReadHandler *chr_read[MAX_MUX];
272 IOEventHandler *chr_event[MAX_MUX];
273 void *ext_opaque[MAX_MUX];
274 CharDriverState *drv;
279 /* Intermediate input buffer allows to catch escape sequences even if the
280 currently active device is not accepting any input - but only until it
282 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
287 int64_t timestamps_start;
291 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
293 MuxDriver *d = chr->opaque;
295 if (!d->timestamps) {
296 ret = d->drv->chr_write(d->drv, buf, len);
301 for (i = 0; i < len; i++) {
307 ti = qemu_get_clock_ms(rt_clock);
308 if (d->timestamps_start == -1)
309 d->timestamps_start = ti;
310 ti -= d->timestamps_start;
312 snprintf(buf1, sizeof(buf1),
313 "[%02d:%02d:%02d.%03d] ",
318 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
321 ret += d->drv->chr_write(d->drv, buf+i, 1);
322 if (buf[i] == '\n') {
330 static const char * const mux_help[] = {
331 "% h print this help\n\r",
332 "% x exit emulator\n\r",
333 "% s save disk data back to file (if -snapshot)\n\r",
334 "% t toggle console timestamps\n\r"
335 "% b send break (magic sysrq)\n\r",
336 "% c switch between console and monitor\n\r",
341 int term_escape_char = 0x01; /* ctrl-a is used for escape */
342 static void mux_print_help(CharDriverState *chr)
345 char ebuf[15] = "Escape-Char";
346 char cbuf[50] = "\n\r";
348 if (term_escape_char > 0 && term_escape_char < 26) {
349 snprintf(cbuf, sizeof(cbuf), "\n\r");
350 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
352 snprintf(cbuf, sizeof(cbuf),
353 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
356 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
357 for (i = 0; mux_help[i] != NULL; i++) {
358 for (j=0; mux_help[i][j] != '\0'; j++) {
359 if (mux_help[i][j] == '%')
360 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
362 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
367 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
369 if (d->chr_event[mux_nr])
370 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
373 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
375 if (d->term_got_escape) {
376 d->term_got_escape = 0;
377 if (ch == term_escape_char)
386 const char *term = "QEMU: Terminated\n\r";
387 chr->chr_write(chr,(uint8_t *)term,strlen(term));
395 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
398 /* Switch to the next registered device */
399 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
401 if (d->focus >= d->mux_cnt)
403 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
406 d->timestamps = !d->timestamps;
407 d->timestamps_start = -1;
411 } else if (ch == term_escape_char) {
412 d->term_got_escape = 1;
420 static void mux_chr_accept_input(CharDriverState *chr)
422 MuxDriver *d = chr->opaque;
425 while (d->prod[m] != d->cons[m] &&
426 d->chr_can_read[m] &&
427 d->chr_can_read[m](d->ext_opaque[m])) {
428 d->chr_read[m](d->ext_opaque[m],
429 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
433 static int mux_chr_can_read(void *opaque)
435 CharDriverState *chr = opaque;
436 MuxDriver *d = chr->opaque;
439 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
441 if (d->chr_can_read[m])
442 return d->chr_can_read[m](d->ext_opaque[m]);
446 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
448 CharDriverState *chr = opaque;
449 MuxDriver *d = chr->opaque;
453 mux_chr_accept_input (opaque);
455 for(i = 0; i < size; i++)
456 if (mux_proc_byte(chr, d, buf[i])) {
457 if (d->prod[m] == d->cons[m] &&
458 d->chr_can_read[m] &&
459 d->chr_can_read[m](d->ext_opaque[m]))
460 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
462 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
466 static void mux_chr_event(void *opaque, int event)
468 CharDriverState *chr = opaque;
469 MuxDriver *d = chr->opaque;
472 /* Send the event to all registered listeners */
473 for (i = 0; i < d->mux_cnt; i++)
474 mux_chr_send_event(d, i, event);
477 static void mux_chr_update_read_handler(CharDriverState *chr)
479 MuxDriver *d = chr->opaque;
481 if (d->mux_cnt >= MAX_MUX) {
482 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
485 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
486 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
487 d->chr_read[d->mux_cnt] = chr->chr_read;
488 d->chr_event[d->mux_cnt] = chr->chr_event;
489 /* Fix up the real driver with mux routines */
490 if (d->mux_cnt == 0) {
491 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
494 if (d->focus != -1) {
495 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
497 d->focus = d->mux_cnt;
499 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
502 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
504 CharDriverState *chr;
507 chr = g_malloc0(sizeof(CharDriverState));
508 d = g_malloc0(sizeof(MuxDriver));
513 chr->chr_write = mux_chr_write;
514 chr->chr_update_read_handler = mux_chr_update_read_handler;
515 chr->chr_accept_input = mux_chr_accept_input;
516 /* Frontend guest-open / -close notification is not support with muxes */
517 chr->chr_set_fe_open = NULL;
519 /* Muxes are always open on creation */
520 qemu_chr_be_generic_open(chr);
527 int send_all(int fd, const void *buf, int len1)
533 ret = send(fd, buf, len, 0);
535 errno = WSAGetLastError();
536 if (errno != WSAEWOULDBLOCK) {
539 } else if (ret == 0) {
551 int send_all(int fd, const void *_buf, int len1)
554 const uint8_t *buf = _buf;
558 ret = write(fd, buf, len);
560 if (errno != EINTR && errno != EAGAIN)
562 } else if (ret == 0) {
572 int recv_all(int fd, void *_buf, int len1, bool single_read)
578 while ((len > 0) && (ret = read(fd, buf, len)) != 0) {
580 if (errno != EINTR && errno != EAGAIN) {
597 typedef struct IOWatchPoll
602 IOCanReadHandler *fd_can_read;
605 QTAILQ_ENTRY(IOWatchPoll) node;
608 static QTAILQ_HEAD(, IOWatchPoll) io_watch_poll_list =
609 QTAILQ_HEAD_INITIALIZER(io_watch_poll_list);
611 static IOWatchPoll *io_watch_poll_from_source(GSource *source)
615 QTAILQ_FOREACH(i, &io_watch_poll_list, node) {
616 if (i->src == source) {
624 static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
626 IOWatchPoll *iwp = io_watch_poll_from_source(source);
628 iwp->max_size = iwp->fd_can_read(iwp->opaque);
629 if (iwp->max_size == 0) {
633 return g_io_watch_funcs.prepare(source, timeout_);
636 static gboolean io_watch_poll_check(GSource *source)
638 IOWatchPoll *iwp = io_watch_poll_from_source(source);
640 if (iwp->max_size == 0) {
644 return g_io_watch_funcs.check(source);
647 static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
650 return g_io_watch_funcs.dispatch(source, callback, user_data);
653 static void io_watch_poll_finalize(GSource *source)
655 IOWatchPoll *iwp = io_watch_poll_from_source(source);
656 QTAILQ_REMOVE(&io_watch_poll_list, iwp, node);
657 g_io_watch_funcs.finalize(source);
660 static GSourceFuncs io_watch_poll_funcs = {
661 .prepare = io_watch_poll_prepare,
662 .check = io_watch_poll_check,
663 .dispatch = io_watch_poll_dispatch,
664 .finalize = io_watch_poll_finalize,
667 /* Can only be used for read */
668 static guint io_add_watch_poll(GIOChannel *channel,
669 IOCanReadHandler *fd_can_read,
677 src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP);
678 g_source_set_funcs(src, &io_watch_poll_funcs);
679 g_source_set_callback(src, (GSourceFunc)fd_read, user_data, NULL);
680 tag = g_source_attach(src, NULL);
683 iwp = g_malloc0(sizeof(*iwp));
686 iwp->fd_can_read = fd_can_read;
687 iwp->opaque = user_data;
689 QTAILQ_INSERT_HEAD(&io_watch_poll_list, iwp, node);
695 static GIOChannel *io_channel_from_fd(int fd)
703 chan = g_io_channel_unix_new(fd);
705 g_io_channel_set_encoding(chan, NULL, NULL);
706 g_io_channel_set_buffered(chan, FALSE);
712 static GIOChannel *io_channel_from_socket(int fd)
721 chan = g_io_channel_win32_new_socket(fd);
723 chan = g_io_channel_unix_new(fd);
726 g_io_channel_set_encoding(chan, NULL, NULL);
727 g_io_channel_set_buffered(chan, FALSE);
732 static int io_channel_send_all(GIOChannel *fd, const void *_buf, int len1)
737 const uint8_t *buf = _buf;
741 status = g_io_channel_write_chars(fd, (const gchar *)buf, len,
742 &bytes_written, NULL);
743 if (status != G_IO_STATUS_NORMAL) {
744 if (status == G_IO_STATUS_AGAIN) {
751 } else if (status == G_IO_STATUS_EOF) {
754 buf += bytes_written;
755 len -= bytes_written;
763 typedef struct FDCharDriver {
764 CharDriverState *chr;
765 GIOChannel *fd_in, *fd_out;
768 QTAILQ_ENTRY(FDCharDriver) node;
771 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
773 FDCharDriver *s = chr->opaque;
775 return io_channel_send_all(s->fd_out, buf, len);
778 static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
780 CharDriverState *chr = opaque;
781 FDCharDriver *s = chr->opaque;
783 uint8_t buf[READ_BUF_LEN];
788 if (len > s->max_size) {
795 status = g_io_channel_read_chars(chan, (gchar *)buf,
796 len, &bytes_read, NULL);
797 if (status == G_IO_STATUS_EOF) {
798 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
801 if (status == G_IO_STATUS_NORMAL) {
802 qemu_chr_be_write(chr, buf, bytes_read);
808 static int fd_chr_read_poll(void *opaque)
810 CharDriverState *chr = opaque;
811 FDCharDriver *s = chr->opaque;
813 s->max_size = qemu_chr_be_can_write(chr);
817 static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
819 FDCharDriver *s = chr->opaque;
820 return g_io_create_watch(s->fd_out, cond);
823 static void fd_chr_update_read_handler(CharDriverState *chr)
825 FDCharDriver *s = chr->opaque;
828 g_source_remove(s->fd_in_tag);
832 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
836 static void fd_chr_close(struct CharDriverState *chr)
838 FDCharDriver *s = chr->opaque;
841 g_source_remove(s->fd_in_tag);
846 g_io_channel_unref(s->fd_in);
849 g_io_channel_unref(s->fd_out);
853 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
856 /* open a character device to a unix fd */
857 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
859 CharDriverState *chr;
862 chr = g_malloc0(sizeof(CharDriverState));
863 s = g_malloc0(sizeof(FDCharDriver));
864 s->fd_in = io_channel_from_fd(fd_in);
865 s->fd_out = io_channel_from_fd(fd_out);
866 fcntl(fd_out, F_SETFL, O_NONBLOCK);
869 chr->chr_add_watch = fd_chr_add_watch;
870 chr->chr_write = fd_chr_write;
871 chr->chr_update_read_handler = fd_chr_update_read_handler;
872 chr->chr_close = fd_chr_close;
874 qemu_chr_be_generic_open(chr);
879 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
882 char filename_in[256], filename_out[256];
883 const char *filename = opts->device;
885 if (filename == NULL) {
886 fprintf(stderr, "chardev: pipe: no filename given\n");
890 snprintf(filename_in, 256, "%s.in", filename);
891 snprintf(filename_out, 256, "%s.out", filename);
892 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
893 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
894 if (fd_in < 0 || fd_out < 0) {
899 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
904 return qemu_chr_open_fd(fd_in, fd_out);
907 /* init terminal so that we can grab keys */
908 static struct termios oldtty;
909 static int old_fd0_flags;
910 static bool stdio_allow_signal;
912 static void term_exit(void)
914 tcsetattr (0, TCSANOW, &oldtty);
915 fcntl(0, F_SETFL, old_fd0_flags);
918 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
924 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
925 |INLCR|IGNCR|ICRNL|IXON);
926 tty.c_oflag |= OPOST;
927 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
928 tty.c_cflag &= ~(CSIZE|PARENB);
933 /* if graphical mode, we allow Ctrl-C handling */
934 if (!stdio_allow_signal)
935 tty.c_lflag &= ~ISIG;
937 tcsetattr (0, TCSANOW, &tty);
940 static void qemu_chr_close_stdio(struct CharDriverState *chr)
946 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
948 CharDriverState *chr;
950 if (is_daemonized()) {
951 error_report("cannot use stdio with -daemonize");
954 old_fd0_flags = fcntl(0, F_GETFL);
955 tcgetattr (0, &oldtty);
956 fcntl(0, F_SETFL, O_NONBLOCK);
959 chr = qemu_chr_open_fd(0, 1);
960 chr->chr_close = qemu_chr_close_stdio;
961 chr->chr_set_echo = qemu_chr_set_echo_stdio;
962 stdio_allow_signal = display_type != DT_NOGRAPHIC;
963 if (opts->has_signal) {
964 stdio_allow_signal = opts->signal;
966 qemu_chr_fe_set_echo(chr, false);
972 /* Once Solaris has openpty(), this is going to be removed. */
973 static int openpty(int *amaster, int *aslave, char *name,
974 struct termios *termp, struct winsize *winp)
977 int mfd = -1, sfd = -1;
979 *amaster = *aslave = -1;
981 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
985 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
988 if ((slave = ptsname(mfd)) == NULL)
991 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
994 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
995 (termp != NULL && tcgetattr(sfd, termp) < 0))
1003 ioctl(sfd, TIOCSWINSZ, winp);
1014 static void cfmakeraw (struct termios *termios_p)
1016 termios_p->c_iflag &=
1017 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
1018 termios_p->c_oflag &= ~OPOST;
1019 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
1020 termios_p->c_cflag &= ~(CSIZE|PARENB);
1021 termios_p->c_cflag |= CS8;
1023 termios_p->c_cc[VMIN] = 0;
1024 termios_p->c_cc[VTIME] = 0;
1028 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1029 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1030 || defined(__GLIBC__)
1032 #define HAVE_CHARDEV_TTY 1
1043 static void pty_chr_update_read_handler(CharDriverState *chr);
1044 static void pty_chr_state(CharDriverState *chr, int connected);
1046 static gboolean pty_chr_timer(gpointer opaque)
1048 struct CharDriverState *chr = opaque;
1049 PtyCharDriver *s = chr->opaque;
1055 /* If we arrive here without polling being cleared due
1056 * read returning -EIO, then we are (re-)connected */
1057 pty_chr_state(chr, 1);
1062 pty_chr_update_read_handler(chr);
1068 static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1070 PtyCharDriver *s = chr->opaque;
1073 g_source_remove(s->timer_tag);
1078 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1080 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1084 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1086 PtyCharDriver *s = chr->opaque;
1088 if (!s->connected) {
1089 /* guest sends data, check for (re-)connect */
1090 pty_chr_update_read_handler(chr);
1093 return io_channel_send_all(s->fd, buf, len);
1096 static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1098 PtyCharDriver *s = chr->opaque;
1099 return g_io_create_watch(s->fd, cond);
1102 static int pty_chr_read_poll(void *opaque)
1104 CharDriverState *chr = opaque;
1105 PtyCharDriver *s = chr->opaque;
1107 s->read_bytes = qemu_chr_be_can_write(chr);
1108 return s->read_bytes;
1111 static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
1113 CharDriverState *chr = opaque;
1114 PtyCharDriver *s = chr->opaque;
1116 uint8_t buf[READ_BUF_LEN];
1120 if (len > s->read_bytes)
1121 len = s->read_bytes;
1124 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1125 if (status != G_IO_STATUS_NORMAL) {
1126 pty_chr_state(chr, 0);
1129 pty_chr_state(chr, 1);
1130 qemu_chr_be_write(chr, buf, size);
1135 static void pty_chr_update_read_handler(CharDriverState *chr)
1137 PtyCharDriver *s = chr->opaque;
1140 g_source_remove(s->fd_tag);
1143 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
1146 * Short timeout here: just need wait long enougth that qemu makes
1147 * it through the poll loop once. When reconnected we want a
1148 * short timeout so we notice it almost instantly. Otherwise
1149 * read() gives us -EIO instantly, making pty_chr_state() reset the
1150 * timeout to the normal (much longer) poll interval before the
1153 pty_chr_rearm_timer(chr, 10);
1156 static void pty_chr_state(CharDriverState *chr, int connected)
1158 PtyCharDriver *s = chr->opaque;
1161 g_source_remove(s->fd_tag);
1165 /* (re-)connect poll interval for idle guests: once per second.
1166 * We check more frequently in case the guests sends data to
1167 * the virtual device linked to our pty. */
1168 pty_chr_rearm_timer(chr, 1000);
1171 qemu_chr_be_generic_open(chr);
1177 static void pty_chr_close(struct CharDriverState *chr)
1179 PtyCharDriver *s = chr->opaque;
1183 g_source_remove(s->fd_tag);
1185 fd = g_io_channel_unix_get_fd(s->fd);
1186 g_io_channel_unref(s->fd);
1189 g_source_remove(s->timer_tag);
1192 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1195 static CharDriverState *qemu_chr_open_pty(const char *id,
1198 CharDriverState *chr;
1201 int master_fd, slave_fd;
1202 #if defined(__OpenBSD__) || defined(__DragonFly__)
1203 char pty_name[PATH_MAX];
1204 #define q_ptsname(x) pty_name
1206 char *pty_name = NULL;
1207 #define q_ptsname(x) ptsname(x)
1210 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1214 /* Set raw attributes on the pty. */
1215 tcgetattr(slave_fd, &tty);
1217 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1220 chr = g_malloc0(sizeof(CharDriverState));
1222 chr->filename = g_strdup_printf("pty:%s", q_ptsname(master_fd));
1223 ret->pty = g_strdup(q_ptsname(master_fd));
1224 ret->has_pty = true;
1226 fprintf(stderr, "char device redirected to %s (label %s)\n",
1227 q_ptsname(master_fd), id);
1229 s = g_malloc0(sizeof(PtyCharDriver));
1231 chr->chr_write = pty_chr_write;
1232 chr->chr_update_read_handler = pty_chr_update_read_handler;
1233 chr->chr_close = pty_chr_close;
1234 chr->chr_add_watch = pty_chr_add_watch;
1236 s->fd = io_channel_from_fd(master_fd);
1242 static void tty_serial_init(int fd, int speed,
1243 int parity, int data_bits, int stop_bits)
1249 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1250 speed, parity, data_bits, stop_bits);
1252 tcgetattr (fd, &tty);
1254 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1255 speed = speed * 10 / 11;
1272 /* Non-Posix values follow. They may be unsupported on some systems. */
1274 check_speed(115200);
1276 check_speed(230400);
1279 check_speed(460800);
1282 check_speed(500000);
1285 check_speed(576000);
1288 check_speed(921600);
1291 check_speed(1000000);
1294 check_speed(1152000);
1297 check_speed(1500000);
1300 check_speed(2000000);
1303 check_speed(2500000);
1306 check_speed(3000000);
1309 check_speed(3500000);
1312 check_speed(4000000);
1317 cfsetispeed(&tty, spd);
1318 cfsetospeed(&tty, spd);
1320 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1321 |INLCR|IGNCR|ICRNL|IXON);
1322 tty.c_oflag |= OPOST;
1323 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1324 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1345 tty.c_cflag |= PARENB;
1348 tty.c_cflag |= PARENB | PARODD;
1352 tty.c_cflag |= CSTOPB;
1354 tcsetattr (fd, TCSANOW, &tty);
1357 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1359 FDCharDriver *s = chr->opaque;
1362 case CHR_IOCTL_SERIAL_SET_PARAMS:
1364 QEMUSerialSetParams *ssp = arg;
1365 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1366 ssp->speed, ssp->parity,
1367 ssp->data_bits, ssp->stop_bits);
1370 case CHR_IOCTL_SERIAL_SET_BREAK:
1372 int enable = *(int *)arg;
1374 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1378 case CHR_IOCTL_SERIAL_GET_TIOCM:
1381 int *targ = (int *)arg;
1382 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1384 if (sarg & TIOCM_CTS)
1385 *targ |= CHR_TIOCM_CTS;
1386 if (sarg & TIOCM_CAR)
1387 *targ |= CHR_TIOCM_CAR;
1388 if (sarg & TIOCM_DSR)
1389 *targ |= CHR_TIOCM_DSR;
1390 if (sarg & TIOCM_RI)
1391 *targ |= CHR_TIOCM_RI;
1392 if (sarg & TIOCM_DTR)
1393 *targ |= CHR_TIOCM_DTR;
1394 if (sarg & TIOCM_RTS)
1395 *targ |= CHR_TIOCM_RTS;
1398 case CHR_IOCTL_SERIAL_SET_TIOCM:
1400 int sarg = *(int *)arg;
1402 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1403 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1404 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1405 if (sarg & CHR_TIOCM_CTS)
1407 if (sarg & CHR_TIOCM_CAR)
1409 if (sarg & CHR_TIOCM_DSR)
1411 if (sarg & CHR_TIOCM_RI)
1413 if (sarg & CHR_TIOCM_DTR)
1415 if (sarg & CHR_TIOCM_RTS)
1417 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1426 static void qemu_chr_close_tty(CharDriverState *chr)
1428 FDCharDriver *s = chr->opaque;
1432 fd = g_io_channel_unix_get_fd(s->fd_in);
1442 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1444 CharDriverState *chr;
1446 tty_serial_init(fd, 115200, 'N', 8, 1);
1447 chr = qemu_chr_open_fd(fd, fd);
1448 chr->chr_ioctl = tty_serial_ioctl;
1449 chr->chr_close = qemu_chr_close_tty;
1452 #endif /* __linux__ || __sun__ */
1454 #if defined(__linux__)
1456 #define HAVE_CHARDEV_PARPORT 1
1461 } ParallelCharDriver;
1463 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1465 if (s->mode != mode) {
1467 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1474 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1476 ParallelCharDriver *drv = chr->opaque;
1481 case CHR_IOCTL_PP_READ_DATA:
1482 if (ioctl(fd, PPRDATA, &b) < 0)
1484 *(uint8_t *)arg = b;
1486 case CHR_IOCTL_PP_WRITE_DATA:
1487 b = *(uint8_t *)arg;
1488 if (ioctl(fd, PPWDATA, &b) < 0)
1491 case CHR_IOCTL_PP_READ_CONTROL:
1492 if (ioctl(fd, PPRCONTROL, &b) < 0)
1494 /* Linux gives only the lowest bits, and no way to know data
1495 direction! For better compatibility set the fixed upper
1497 *(uint8_t *)arg = b | 0xc0;
1499 case CHR_IOCTL_PP_WRITE_CONTROL:
1500 b = *(uint8_t *)arg;
1501 if (ioctl(fd, PPWCONTROL, &b) < 0)
1504 case CHR_IOCTL_PP_READ_STATUS:
1505 if (ioctl(fd, PPRSTATUS, &b) < 0)
1507 *(uint8_t *)arg = b;
1509 case CHR_IOCTL_PP_DATA_DIR:
1510 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1513 case CHR_IOCTL_PP_EPP_READ_ADDR:
1514 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1515 struct ParallelIOArg *parg = arg;
1516 int n = read(fd, parg->buffer, parg->count);
1517 if (n != parg->count) {
1522 case CHR_IOCTL_PP_EPP_READ:
1523 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1524 struct ParallelIOArg *parg = arg;
1525 int n = read(fd, parg->buffer, parg->count);
1526 if (n != parg->count) {
1531 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1532 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1533 struct ParallelIOArg *parg = arg;
1534 int n = write(fd, parg->buffer, parg->count);
1535 if (n != parg->count) {
1540 case CHR_IOCTL_PP_EPP_WRITE:
1541 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1542 struct ParallelIOArg *parg = arg;
1543 int n = write(fd, parg->buffer, parg->count);
1544 if (n != parg->count) {
1555 static void pp_close(CharDriverState *chr)
1557 ParallelCharDriver *drv = chr->opaque;
1560 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1561 ioctl(fd, PPRELEASE);
1564 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1567 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1569 CharDriverState *chr;
1570 ParallelCharDriver *drv;
1572 if (ioctl(fd, PPCLAIM) < 0) {
1577 drv = g_malloc0(sizeof(ParallelCharDriver));
1579 drv->mode = IEEE1284_MODE_COMPAT;
1581 chr = g_malloc0(sizeof(CharDriverState));
1582 chr->chr_write = null_chr_write;
1583 chr->chr_ioctl = pp_ioctl;
1584 chr->chr_close = pp_close;
1587 qemu_chr_be_generic_open(chr);
1591 #endif /* __linux__ */
1593 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1595 #define HAVE_CHARDEV_PARPORT 1
1597 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1599 int fd = (int)(intptr_t)chr->opaque;
1603 case CHR_IOCTL_PP_READ_DATA:
1604 if (ioctl(fd, PPIGDATA, &b) < 0)
1606 *(uint8_t *)arg = b;
1608 case CHR_IOCTL_PP_WRITE_DATA:
1609 b = *(uint8_t *)arg;
1610 if (ioctl(fd, PPISDATA, &b) < 0)
1613 case CHR_IOCTL_PP_READ_CONTROL:
1614 if (ioctl(fd, PPIGCTRL, &b) < 0)
1616 *(uint8_t *)arg = b;
1618 case CHR_IOCTL_PP_WRITE_CONTROL:
1619 b = *(uint8_t *)arg;
1620 if (ioctl(fd, PPISCTRL, &b) < 0)
1623 case CHR_IOCTL_PP_READ_STATUS:
1624 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1626 *(uint8_t *)arg = b;
1634 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1636 CharDriverState *chr;
1638 chr = g_malloc0(sizeof(CharDriverState));
1639 chr->opaque = (void *)(intptr_t)fd;
1640 chr->chr_write = null_chr_write;
1641 chr->chr_ioctl = pp_ioctl;
1650 HANDLE hcom, hrecv, hsend;
1651 OVERLAPPED orecv, osend;
1658 HANDLE hInputReadyEvent;
1659 HANDLE hInputDoneEvent;
1660 HANDLE hInputThread;
1661 uint8_t win_stdio_buf;
1662 } WinStdioCharState;
1664 #define NSENDBUF 2048
1665 #define NRECVBUF 2048
1666 #define MAXCONNECT 1
1667 #define NTIMEOUT 5000
1669 static int win_chr_poll(void *opaque);
1670 static int win_chr_pipe_poll(void *opaque);
1672 static void win_chr_close(CharDriverState *chr)
1674 WinCharState *s = chr->opaque;
1677 CloseHandle(s->hsend);
1681 CloseHandle(s->hrecv);
1685 CloseHandle(s->hcom);
1689 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1691 qemu_del_polling_cb(win_chr_poll, chr);
1693 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1696 static int win_chr_init(CharDriverState *chr, const char *filename)
1698 WinCharState *s = chr->opaque;
1700 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1705 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1707 fprintf(stderr, "Failed CreateEvent\n");
1710 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1712 fprintf(stderr, "Failed CreateEvent\n");
1716 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1717 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1718 if (s->hcom == INVALID_HANDLE_VALUE) {
1719 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1724 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1725 fprintf(stderr, "Failed SetupComm\n");
1729 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1730 size = sizeof(COMMCONFIG);
1731 GetDefaultCommConfig(filename, &comcfg, &size);
1732 comcfg.dcb.DCBlength = sizeof(DCB);
1733 CommConfigDialog(filename, NULL, &comcfg);
1735 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1736 fprintf(stderr, "Failed SetCommState\n");
1740 if (!SetCommMask(s->hcom, EV_ERR)) {
1741 fprintf(stderr, "Failed SetCommMask\n");
1745 cto.ReadIntervalTimeout = MAXDWORD;
1746 if (!SetCommTimeouts(s->hcom, &cto)) {
1747 fprintf(stderr, "Failed SetCommTimeouts\n");
1751 if (!ClearCommError(s->hcom, &err, &comstat)) {
1752 fprintf(stderr, "Failed ClearCommError\n");
1755 qemu_add_polling_cb(win_chr_poll, chr);
1763 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1765 WinCharState *s = chr->opaque;
1766 DWORD len, ret, size, err;
1769 ZeroMemory(&s->osend, sizeof(s->osend));
1770 s->osend.hEvent = s->hsend;
1773 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1775 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1777 err = GetLastError();
1778 if (err == ERROR_IO_PENDING) {
1779 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1797 static int win_chr_read_poll(CharDriverState *chr)
1799 WinCharState *s = chr->opaque;
1801 s->max_size = qemu_chr_be_can_write(chr);
1805 static void win_chr_readfile(CharDriverState *chr)
1807 WinCharState *s = chr->opaque;
1809 uint8_t buf[READ_BUF_LEN];
1812 ZeroMemory(&s->orecv, sizeof(s->orecv));
1813 s->orecv.hEvent = s->hrecv;
1814 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1816 err = GetLastError();
1817 if (err == ERROR_IO_PENDING) {
1818 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1823 qemu_chr_be_write(chr, buf, size);
1827 static void win_chr_read(CharDriverState *chr)
1829 WinCharState *s = chr->opaque;
1831 if (s->len > s->max_size)
1832 s->len = s->max_size;
1836 win_chr_readfile(chr);
1839 static int win_chr_poll(void *opaque)
1841 CharDriverState *chr = opaque;
1842 WinCharState *s = chr->opaque;
1846 ClearCommError(s->hcom, &comerr, &status);
1847 if (status.cbInQue > 0) {
1848 s->len = status.cbInQue;
1849 win_chr_read_poll(chr);
1856 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1858 CharDriverState *chr;
1861 chr = g_malloc0(sizeof(CharDriverState));
1862 s = g_malloc0(sizeof(WinCharState));
1864 chr->chr_write = win_chr_write;
1865 chr->chr_close = win_chr_close;
1867 if (win_chr_init(chr, filename) < 0) {
1872 qemu_chr_be_generic_open(chr);
1876 static int win_chr_pipe_poll(void *opaque)
1878 CharDriverState *chr = opaque;
1879 WinCharState *s = chr->opaque;
1882 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1885 win_chr_read_poll(chr);
1892 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1894 WinCharState *s = chr->opaque;
1902 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1904 fprintf(stderr, "Failed CreateEvent\n");
1907 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1909 fprintf(stderr, "Failed CreateEvent\n");
1913 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1914 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1915 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1917 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1918 if (s->hcom == INVALID_HANDLE_VALUE) {
1919 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1924 ZeroMemory(&ov, sizeof(ov));
1925 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1926 ret = ConnectNamedPipe(s->hcom, &ov);
1928 fprintf(stderr, "Failed ConnectNamedPipe\n");
1932 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1934 fprintf(stderr, "Failed GetOverlappedResult\n");
1936 CloseHandle(ov.hEvent);
1943 CloseHandle(ov.hEvent);
1946 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1955 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
1957 const char *filename = opts->device;
1958 CharDriverState *chr;
1961 chr = g_malloc0(sizeof(CharDriverState));
1962 s = g_malloc0(sizeof(WinCharState));
1964 chr->chr_write = win_chr_write;
1965 chr->chr_close = win_chr_close;
1967 if (win_chr_pipe_init(chr, filename) < 0) {
1972 qemu_chr_be_generic_open(chr);
1976 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1978 CharDriverState *chr;
1981 chr = g_malloc0(sizeof(CharDriverState));
1982 s = g_malloc0(sizeof(WinCharState));
1985 chr->chr_write = win_chr_write;
1986 qemu_chr_be_generic_open(chr);
1990 static CharDriverState *qemu_chr_open_win_con(void)
1992 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1995 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1997 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
2004 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
2014 static void win_stdio_wait_func(void *opaque)
2016 CharDriverState *chr = opaque;
2017 WinStdioCharState *stdio = chr->opaque;
2018 INPUT_RECORD buf[4];
2023 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
2027 /* Avoid error storm */
2028 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
2032 for (i = 0; i < dwSize; i++) {
2033 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2035 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2037 if (kev->uChar.AsciiChar != 0) {
2038 for (j = 0; j < kev->wRepeatCount; j++) {
2039 if (qemu_chr_be_can_write(chr)) {
2040 uint8_t c = kev->uChar.AsciiChar;
2041 qemu_chr_be_write(chr, &c, 1);
2049 static DWORD WINAPI win_stdio_thread(LPVOID param)
2051 CharDriverState *chr = param;
2052 WinStdioCharState *stdio = chr->opaque;
2058 /* Wait for one byte */
2059 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2061 /* Exit in case of error, continue if nothing read */
2069 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2070 if (stdio->win_stdio_buf == '\r') {
2074 /* Signal the main thread and wait until the byte was eaten */
2075 if (!SetEvent(stdio->hInputReadyEvent)) {
2078 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2084 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2088 static void win_stdio_thread_wait_func(void *opaque)
2090 CharDriverState *chr = opaque;
2091 WinStdioCharState *stdio = chr->opaque;
2093 if (qemu_chr_be_can_write(chr)) {
2094 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2097 SetEvent(stdio->hInputDoneEvent);
2100 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2102 WinStdioCharState *stdio = chr->opaque;
2105 GetConsoleMode(stdio->hStdIn, &dwMode);
2108 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2110 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2114 static void win_stdio_close(CharDriverState *chr)
2116 WinStdioCharState *stdio = chr->opaque;
2118 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2119 CloseHandle(stdio->hInputReadyEvent);
2121 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2122 CloseHandle(stdio->hInputDoneEvent);
2124 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2125 TerminateThread(stdio->hInputThread, 0);
2128 g_free(chr->opaque);
2132 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
2134 CharDriverState *chr;
2135 WinStdioCharState *stdio;
2139 chr = g_malloc0(sizeof(CharDriverState));
2140 stdio = g_malloc0(sizeof(WinStdioCharState));
2142 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2143 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2144 fprintf(stderr, "cannot open stdio: invalid handle\n");
2148 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2150 chr->opaque = stdio;
2151 chr->chr_write = win_stdio_write;
2152 chr->chr_close = win_stdio_close;
2155 if (qemu_add_wait_object(stdio->hStdIn,
2156 win_stdio_wait_func, chr)) {
2157 fprintf(stderr, "qemu_add_wait_object: failed\n");
2162 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2163 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2164 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2167 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2168 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2169 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2170 fprintf(stderr, "cannot create stdio thread or event\n");
2173 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2174 win_stdio_thread_wait_func, chr)) {
2175 fprintf(stderr, "qemu_add_wait_object: failed\n");
2179 dwMode |= ENABLE_LINE_INPUT;
2182 /* set the terminal in raw mode */
2183 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2184 dwMode |= ENABLE_PROCESSED_INPUT;
2187 SetConsoleMode(stdio->hStdIn, dwMode);
2189 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2190 qemu_chr_fe_set_echo(chr, false);
2194 #endif /* !_WIN32 */
2197 /***********************************************************/
2198 /* UDP Net console */
2204 uint8_t buf[READ_BUF_LEN];
2210 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2212 NetCharDriver *s = chr->opaque;
2213 gsize bytes_written;
2216 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2217 if (status == G_IO_STATUS_EOF) {
2219 } else if (status != G_IO_STATUS_NORMAL) {
2223 return bytes_written;
2226 static int udp_chr_read_poll(void *opaque)
2228 CharDriverState *chr = opaque;
2229 NetCharDriver *s = chr->opaque;
2231 s->max_size = qemu_chr_be_can_write(chr);
2233 /* If there were any stray characters in the queue process them
2236 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2237 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2239 s->max_size = qemu_chr_be_can_write(chr);
2244 static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2246 CharDriverState *chr = opaque;
2247 NetCharDriver *s = chr->opaque;
2248 gsize bytes_read = 0;
2251 if (s->max_size == 0)
2253 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2255 s->bufcnt = bytes_read;
2256 s->bufptr = s->bufcnt;
2257 if (status != G_IO_STATUS_NORMAL) {
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);
2292 g_io_channel_unref(s->chan);
2296 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2299 static CharDriverState *qemu_chr_open_udp_fd(int fd)
2301 CharDriverState *chr = NULL;
2302 NetCharDriver *s = NULL;
2304 chr = g_malloc0(sizeof(CharDriverState));
2305 s = g_malloc0(sizeof(NetCharDriver));
2308 s->chan = io_channel_from_socket(s->fd);
2312 chr->chr_write = udp_chr_write;
2313 chr->chr_update_read_handler = udp_chr_update_read_handler;
2314 chr->chr_close = udp_chr_close;
2318 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2320 Error *local_err = NULL;
2323 fd = inet_dgram_opts(opts, &local_err);
2327 return qemu_chr_open_udp_fd(fd);
2330 /***********************************************************/
2331 /* TCP Net console */
2335 GIOChannel *chan, *listen_chan;
2336 guint tag, listen_tag;
2346 static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
2348 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2350 TCPCharDriver *s = chr->opaque;
2352 return io_channel_send_all(s->chan, buf, len);
2354 /* XXX: indicate an error ? */
2359 static int tcp_chr_read_poll(void *opaque)
2361 CharDriverState *chr = opaque;
2362 TCPCharDriver *s = chr->opaque;
2365 s->max_size = qemu_chr_be_can_write(chr);
2370 #define IAC_BREAK 243
2371 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2373 uint8_t *buf, int *size)
2375 /* Handle any telnet client's basic IAC options to satisfy char by
2376 * char mode with no echo. All IAC options will be removed from
2377 * the buf and the do_telnetopt variable will be used to track the
2378 * state of the width of the IAC information.
2380 * IAC commands come in sets of 3 bytes with the exception of the
2381 * "IAC BREAK" command and the double IAC.
2387 for (i = 0; i < *size; i++) {
2388 if (s->do_telnetopt > 1) {
2389 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2390 /* Double IAC means send an IAC */
2394 s->do_telnetopt = 1;
2396 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2397 /* Handle IAC break commands by sending a serial break */
2398 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2403 if (s->do_telnetopt >= 4) {
2404 s->do_telnetopt = 1;
2407 if ((unsigned char)buf[i] == IAC) {
2408 s->do_telnetopt = 2;
2419 static int tcp_get_msgfd(CharDriverState *chr)
2421 TCPCharDriver *s = chr->opaque;
2428 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2430 TCPCharDriver *s = chr->opaque;
2431 struct cmsghdr *cmsg;
2433 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2436 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2437 cmsg->cmsg_level != SOL_SOCKET ||
2438 cmsg->cmsg_type != SCM_RIGHTS)
2441 fd = *((int *)CMSG_DATA(cmsg));
2445 #ifndef MSG_CMSG_CLOEXEC
2446 qemu_set_cloexec(fd);
2454 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2456 TCPCharDriver *s = chr->opaque;
2457 struct msghdr msg = { NULL, };
2458 struct iovec iov[1];
2460 struct cmsghdr cmsg;
2461 char control[CMSG_SPACE(sizeof(int))];
2466 iov[0].iov_base = buf;
2467 iov[0].iov_len = len;
2471 msg.msg_control = &msg_control;
2472 msg.msg_controllen = sizeof(msg_control);
2474 #ifdef MSG_CMSG_CLOEXEC
2475 flags |= MSG_CMSG_CLOEXEC;
2477 ret = recvmsg(s->fd, &msg, flags);
2478 if (ret > 0 && s->is_unix) {
2479 unix_process_msgfd(chr, &msg);
2485 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2487 TCPCharDriver *s = chr->opaque;
2488 return qemu_recv(s->fd, buf, len, 0);
2492 static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2494 TCPCharDriver *s = chr->opaque;
2495 return g_io_create_watch(s->chan, cond);
2498 static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2500 CharDriverState *chr = opaque;
2501 TCPCharDriver *s = chr->opaque;
2502 uint8_t buf[READ_BUF_LEN];
2505 if (!s->connected || s->max_size <= 0) {
2509 if (len > s->max_size)
2511 size = tcp_chr_recv(chr, (void *)buf, len);
2513 /* connection closed */
2515 if (s->listen_chan) {
2516 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2518 g_source_remove(s->tag);
2520 g_io_channel_unref(s->chan);
2524 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2525 } else if (size > 0) {
2526 if (s->do_telnetopt)
2527 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2529 qemu_chr_be_write(chr, buf, size);
2536 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2538 return qemu_chr_open_fd(eventfd, eventfd);
2542 static void tcp_chr_connect(void *opaque)
2544 CharDriverState *chr = opaque;
2545 TCPCharDriver *s = chr->opaque;
2549 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
2551 qemu_chr_be_generic_open(chr);
2554 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2555 static void tcp_chr_telnet_init(int fd)
2558 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2559 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2560 send(fd, (char *)buf, 3, 0);
2561 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2562 send(fd, (char *)buf, 3, 0);
2563 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2564 send(fd, (char *)buf, 3, 0);
2565 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2566 send(fd, (char *)buf, 3, 0);
2569 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2571 TCPCharDriver *s = chr->opaque;
2575 socket_set_nonblock(fd);
2577 socket_set_nodelay(fd);
2579 s->chan = io_channel_from_socket(fd);
2580 g_source_remove(s->listen_tag);
2582 tcp_chr_connect(chr);
2587 static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
2589 CharDriverState *chr = opaque;
2590 TCPCharDriver *s = chr->opaque;
2591 struct sockaddr_in saddr;
2593 struct sockaddr_un uaddr;
2595 struct sockaddr *addr;
2602 len = sizeof(uaddr);
2603 addr = (struct sockaddr *)&uaddr;
2607 len = sizeof(saddr);
2608 addr = (struct sockaddr *)&saddr;
2610 fd = qemu_accept(s->listen_fd, addr, &len);
2611 if (fd < 0 && errno != EINTR) {
2613 } else if (fd >= 0) {
2614 if (s->do_telnetopt)
2615 tcp_chr_telnet_init(fd);
2619 if (tcp_chr_add_client(chr, fd) < 0)
2625 static void tcp_chr_close(CharDriverState *chr)
2627 TCPCharDriver *s = chr->opaque;
2630 g_source_remove(s->tag);
2633 g_io_channel_unref(s->chan);
2637 if (s->listen_fd >= 0) {
2638 if (s->listen_tag) {
2639 g_source_remove(s->listen_tag);
2641 if (s->listen_chan) {
2642 g_io_channel_unref(s->listen_chan);
2644 closesocket(s->listen_fd);
2647 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2650 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2651 bool is_listen, bool is_telnet,
2652 bool is_waitconnect,
2655 CharDriverState *chr = NULL;
2656 TCPCharDriver *s = NULL;
2657 char host[NI_MAXHOST], serv[NI_MAXSERV];
2658 const char *left = "", *right = "";
2659 struct sockaddr_storage ss;
2660 socklen_t ss_len = sizeof(ss);
2662 memset(&ss, 0, ss_len);
2663 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2664 error_setg(errp, "getsockname: %s", strerror(errno));
2668 chr = g_malloc0(sizeof(CharDriverState));
2669 s = g_malloc0(sizeof(TCPCharDriver));
2676 chr->filename = g_malloc(256);
2677 switch (ss.ss_family) {
2681 snprintf(chr->filename, 256, "unix:%s%s",
2682 ((struct sockaddr_un *)(&ss))->sun_path,
2683 is_listen ? ",server" : "");
2691 s->do_nodelay = do_nodelay;
2692 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2693 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2694 snprintf(chr->filename, 256, "%s:%s%s%s:%s%s",
2695 is_telnet ? "telnet" : "tcp",
2696 left, host, right, serv,
2697 is_listen ? ",server" : "");
2702 chr->chr_write = tcp_chr_write;
2703 chr->chr_close = tcp_chr_close;
2704 chr->get_msgfd = tcp_get_msgfd;
2705 chr->chr_add_client = tcp_chr_add_client;
2706 chr->chr_add_watch = tcp_chr_add_watch;
2710 s->listen_chan = io_channel_from_socket(s->listen_fd);
2711 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2713 s->do_telnetopt = 1;
2718 socket_set_nodelay(fd);
2719 s->chan = io_channel_from_socket(s->fd);
2720 tcp_chr_connect(chr);
2723 if (is_listen && is_waitconnect) {
2724 printf("QEMU waiting for connection on: %s\n",
2726 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
2727 socket_set_nonblock(s->listen_fd);
2732 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2734 CharDriverState *chr = NULL;
2735 Error *local_err = NULL;
2743 is_listen = qemu_opt_get_bool(opts, "server", 0);
2744 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2745 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2746 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2747 is_unix = qemu_opt_get(opts, "path") != NULL;
2753 fd = unix_listen_opts(opts, &local_err);
2755 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2759 fd = inet_listen_opts(opts, 0, &local_err);
2761 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2768 if (!is_waitconnect)
2769 socket_set_nonblock(fd);
2771 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2772 is_waitconnect, &local_err);
2773 if (error_is_set(&local_err)) {
2781 qerror_report_err(local_err);
2782 error_free(local_err);
2788 g_free(chr->opaque);
2794 /***********************************************************/
2795 /* Memory chardev */
2798 size_t outbuf_capacity;
2802 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2804 MemoryDriver *d = chr->opaque;
2806 /* TODO: the QString implementation has the same code, we should
2807 * introduce a generic way to do this in cutils.c */
2808 if (d->outbuf_capacity < d->outbuf_size + len) {
2810 d->outbuf_capacity += len;
2811 d->outbuf_capacity *= 2;
2812 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2815 memcpy(d->outbuf + d->outbuf_size, buf, len);
2816 d->outbuf_size += len;
2821 void qemu_chr_init_mem(CharDriverState *chr)
2825 d = g_malloc(sizeof(*d));
2827 d->outbuf_capacity = 4096;
2828 d->outbuf = g_malloc0(d->outbuf_capacity);
2830 memset(chr, 0, sizeof(*chr));
2832 chr->chr_write = mem_chr_write;
2835 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2837 MemoryDriver *d = chr->opaque;
2838 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2841 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2842 void qemu_chr_close_mem(CharDriverState *chr)
2844 MemoryDriver *d = chr->opaque;
2847 g_free(chr->opaque);
2849 chr->chr_write = NULL;
2852 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2854 const MemoryDriver *d = chr->opaque;
2855 return d->outbuf_size;
2858 /*********************************************************/
2859 /* Ring buffer chardev */
2866 } RingBufCharDriver;
2868 static size_t ringbuf_count(const CharDriverState *chr)
2870 const RingBufCharDriver *d = chr->opaque;
2872 return d->prod - d->cons;
2875 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2877 RingBufCharDriver *d = chr->opaque;
2880 if (!buf || (len < 0)) {
2884 for (i = 0; i < len; i++ ) {
2885 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2886 if (d->prod - d->cons > d->size) {
2887 d->cons = d->prod - d->size;
2894 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2896 RingBufCharDriver *d = chr->opaque;
2899 for (i = 0; i < len && d->cons != d->prod; i++) {
2900 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2906 static void ringbuf_chr_close(struct CharDriverState *chr)
2908 RingBufCharDriver *d = chr->opaque;
2915 static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
2918 CharDriverState *chr;
2919 RingBufCharDriver *d;
2921 chr = g_malloc0(sizeof(CharDriverState));
2922 d = g_malloc(sizeof(*d));
2924 d->size = opts->has_size ? opts->size : 65536;
2926 /* The size must be power of 2 */
2927 if (d->size & (d->size - 1)) {
2928 error_setg(errp, "size of ringbuf chardev must be power of two");
2934 d->cbuf = g_malloc0(d->size);
2937 chr->chr_write = ringbuf_chr_write;
2938 chr->chr_close = ringbuf_chr_close;
2948 static bool chr_is_ringbuf(const CharDriverState *chr)
2950 return chr->chr_write == ringbuf_chr_write;
2953 void qmp_ringbuf_write(const char *device, const char *data,
2954 bool has_format, enum DataFormat format,
2957 CharDriverState *chr;
2958 const uint8_t *write_data;
2962 chr = qemu_chr_find(device);
2964 error_setg(errp, "Device '%s' not found", device);
2968 if (!chr_is_ringbuf(chr)) {
2969 error_setg(errp,"%s is not a ringbuf device", device);
2973 if (has_format && (format == DATA_FORMAT_BASE64)) {
2974 write_data = g_base64_decode(data, &write_count);
2976 write_data = (uint8_t *)data;
2977 write_count = strlen(data);
2980 ret = ringbuf_chr_write(chr, write_data, write_count);
2982 if (write_data != (uint8_t *)data) {
2983 g_free((void *)write_data);
2987 error_setg(errp, "Failed to write to device %s", device);
2992 char *qmp_ringbuf_read(const char *device, int64_t size,
2993 bool has_format, enum DataFormat format,
2996 CharDriverState *chr;
3001 chr = qemu_chr_find(device);
3003 error_setg(errp, "Device '%s' not found", device);
3007 if (!chr_is_ringbuf(chr)) {
3008 error_setg(errp,"%s is not a ringbuf device", device);
3013 error_setg(errp, "size must be greater than zero");
3017 count = ringbuf_count(chr);
3018 size = size > count ? count : size;
3019 read_data = g_malloc(size + 1);
3021 ringbuf_chr_read(chr, read_data, size);
3023 if (has_format && (format == DATA_FORMAT_BASE64)) {
3024 data = g_base64_encode(read_data, size);
3028 * FIXME should read only complete, valid UTF-8 characters up
3029 * to @size bytes. Invalid sequences should be replaced by a
3030 * suitable replacement character. Except when (and only
3031 * when) ring buffer lost characters since last read, initial
3032 * continuation characters should be dropped.
3034 read_data[size] = 0;
3035 data = (char *)read_data;
3041 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
3043 char host[65], port[33], width[8], height[8];
3047 Error *local_err = NULL;
3049 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
3050 if (error_is_set(&local_err)) {
3051 qerror_report_err(local_err);
3052 error_free(local_err);
3056 if (strstart(filename, "mon:", &p)) {
3058 qemu_opt_set(opts, "mux", "on");
3061 if (strcmp(filename, "null") == 0 ||
3062 strcmp(filename, "pty") == 0 ||
3063 strcmp(filename, "msmouse") == 0 ||
3064 strcmp(filename, "braille") == 0 ||
3065 strcmp(filename, "stdio") == 0) {
3066 qemu_opt_set(opts, "backend", filename);
3069 if (strstart(filename, "vc", &p)) {
3070 qemu_opt_set(opts, "backend", "vc");
3072 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3074 qemu_opt_set(opts, "width", width);
3075 qemu_opt_set(opts, "height", height);
3076 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3078 qemu_opt_set(opts, "cols", width);
3079 qemu_opt_set(opts, "rows", height);
3086 if (strcmp(filename, "con:") == 0) {
3087 qemu_opt_set(opts, "backend", "console");
3090 if (strstart(filename, "COM", NULL)) {
3091 qemu_opt_set(opts, "backend", "serial");
3092 qemu_opt_set(opts, "path", filename);
3095 if (strstart(filename, "file:", &p)) {
3096 qemu_opt_set(opts, "backend", "file");
3097 qemu_opt_set(opts, "path", p);
3100 if (strstart(filename, "pipe:", &p)) {
3101 qemu_opt_set(opts, "backend", "pipe");
3102 qemu_opt_set(opts, "path", p);
3105 if (strstart(filename, "tcp:", &p) ||
3106 strstart(filename, "telnet:", &p)) {
3107 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3109 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3112 qemu_opt_set(opts, "backend", "socket");
3113 qemu_opt_set(opts, "host", host);
3114 qemu_opt_set(opts, "port", port);
3115 if (p[pos] == ',') {
3116 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3119 if (strstart(filename, "telnet:", &p))
3120 qemu_opt_set(opts, "telnet", "on");
3123 if (strstart(filename, "udp:", &p)) {
3124 qemu_opt_set(opts, "backend", "udp");
3125 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3127 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3131 qemu_opt_set(opts, "host", host);
3132 qemu_opt_set(opts, "port", port);
3133 if (p[pos] == '@') {
3135 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3137 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3141 qemu_opt_set(opts, "localaddr", host);
3142 qemu_opt_set(opts, "localport", port);
3146 if (strstart(filename, "unix:", &p)) {
3147 qemu_opt_set(opts, "backend", "socket");
3148 if (qemu_opts_do_parse(opts, p, "path") != 0)
3152 if (strstart(filename, "/dev/parport", NULL) ||
3153 strstart(filename, "/dev/ppi", NULL)) {
3154 qemu_opt_set(opts, "backend", "parport");
3155 qemu_opt_set(opts, "path", filename);
3158 if (strstart(filename, "/dev/", NULL)) {
3159 qemu_opt_set(opts, "backend", "tty");
3160 qemu_opt_set(opts, "path", filename);
3165 qemu_opts_del(opts);
3169 static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3172 const char *path = qemu_opt_get(opts, "path");
3175 error_setg(errp, "chardev: file: no filename given");
3178 backend->file = g_new0(ChardevFile, 1);
3179 backend->file->out = g_strdup(path);
3182 static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3185 backend->stdio = g_new0(ChardevStdio, 1);
3186 backend->stdio->has_signal = true;
3187 backend->stdio->signal =
3188 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3191 static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3194 const char *device = qemu_opt_get(opts, "path");
3196 if (device == NULL) {
3197 error_setg(errp, "chardev: serial/tty: no device path given");
3200 backend->serial = g_new0(ChardevHostdev, 1);
3201 backend->serial->device = g_strdup(device);
3204 static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3207 const char *device = qemu_opt_get(opts, "path");
3209 if (device == NULL) {
3210 error_setg(errp, "chardev: parallel: no device path given");
3213 backend->parallel = g_new0(ChardevHostdev, 1);
3214 backend->parallel->device = g_strdup(device);
3217 static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
3220 const char *device = qemu_opt_get(opts, "path");
3222 if (device == NULL) {
3223 error_setg(errp, "chardev: pipe: no device path given");
3226 backend->pipe = g_new0(ChardevHostdev, 1);
3227 backend->pipe->device = g_strdup(device);
3230 static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend,
3235 backend->memory = g_new0(ChardevRingbuf, 1);
3237 val = qemu_opt_get_number(opts, "size", 0);
3239 backend->memory->has_size = true;
3240 backend->memory->size = val;
3244 typedef struct CharDriver {
3247 CharDriverState *(*open)(QemuOpts *opts);
3248 /* new, qapi-based */
3250 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
3253 static GSList *backends;
3255 void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3259 s = g_malloc0(sizeof(*s));
3260 s->name = g_strdup(name);
3263 backends = g_slist_append(backends, s);
3266 void register_char_driver_qapi(const char *name, int kind,
3267 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3271 s = g_malloc0(sizeof(*s));
3272 s->name = g_strdup(name);
3276 backends = g_slist_append(backends, s);
3279 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3280 void (*init)(struct CharDriverState *s),
3284 CharDriverState *chr;
3287 if (qemu_opts_id(opts) == NULL) {
3288 error_setg(errp, "chardev: no id specified");
3292 if (qemu_opt_get(opts, "backend") == NULL) {
3293 error_setg(errp, "chardev: \"%s\" missing backend",
3294 qemu_opts_id(opts));
3297 for (i = backends; i; i = i->next) {
3300 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
3305 error_setg(errp, "chardev: backend \"%s\" not found",
3306 qemu_opt_get(opts, "backend"));
3311 /* using new, qapi init */
3312 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3313 ChardevReturn *ret = NULL;
3314 const char *id = qemu_opts_id(opts);
3315 const char *bid = NULL;
3317 if (qemu_opt_get_bool(opts, "mux", 0)) {
3318 bid = g_strdup_printf("%s-base", id);
3322 backend->kind = cd->kind;
3324 cd->parse(opts, backend, errp);
3325 if (error_is_set(errp)) {
3329 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
3330 if (error_is_set(errp)) {
3335 qapi_free_ChardevBackend(backend);
3336 qapi_free_ChardevReturn(ret);
3337 backend = g_new0(ChardevBackend, 1);
3338 backend->mux = g_new0(ChardevMux, 1);
3339 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3340 backend->mux->chardev = g_strdup(bid);
3341 ret = qmp_chardev_add(id, backend, errp);
3342 if (error_is_set(errp)) {
3347 chr = qemu_chr_find(id);
3350 qapi_free_ChardevBackend(backend);
3351 qapi_free_ChardevReturn(ret);
3355 chr = cd->open(opts);
3357 error_setg(errp, "chardev: opening backend \"%s\" failed",
3358 qemu_opt_get(opts, "backend"));
3363 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3365 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3367 if (qemu_opt_get_bool(opts, "mux", 0)) {
3368 CharDriverState *base = chr;
3369 int len = strlen(qemu_opts_id(opts)) + 6;
3370 base->label = g_malloc(len);
3371 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3372 chr = qemu_chr_open_mux(base);
3373 chr->filename = base->filename;
3374 chr->avail_connections = MAX_MUX;
3375 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3377 chr->avail_connections = 1;
3379 chr->label = g_strdup(qemu_opts_id(opts));
3384 qemu_opts_del(opts);
3388 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3391 CharDriverState *chr;
3395 if (strstart(filename, "chardev:", &p)) {
3396 return qemu_chr_find(p);
3399 opts = qemu_chr_parse_compat(label, filename);
3403 chr = qemu_chr_new_from_opts(opts, init, &err);
3404 if (error_is_set(&err)) {
3405 fprintf(stderr, "%s\n", error_get_pretty(err));
3408 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3409 monitor_init(chr, MONITOR_USE_READLINE);
3414 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3416 if (chr->chr_set_echo) {
3417 chr->chr_set_echo(chr, echo);
3421 void qemu_chr_fe_set_open(struct CharDriverState *chr, int fe_open)
3423 if (chr->fe_open == fe_open) {
3426 chr->fe_open = fe_open;
3427 if (chr->chr_set_fe_open) {
3428 chr->chr_set_fe_open(chr, fe_open);
3432 int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3433 GIOFunc func, void *user_data)
3438 if (s->chr_add_watch == NULL) {
3442 src = s->chr_add_watch(s, cond);
3443 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3444 tag = g_source_attach(src, NULL);
3445 g_source_unref(src);
3450 void qemu_chr_delete(CharDriverState *chr)
3452 QTAILQ_REMOVE(&chardevs, chr, next);
3453 if (chr->chr_close) {
3454 chr->chr_close(chr);
3456 g_free(chr->filename);
3459 qemu_opts_del(chr->opts);
3464 ChardevInfoList *qmp_query_chardev(Error **errp)
3466 ChardevInfoList *chr_list = NULL;
3467 CharDriverState *chr;
3469 QTAILQ_FOREACH(chr, &chardevs, next) {
3470 ChardevInfoList *info = g_malloc0(sizeof(*info));
3471 info->value = g_malloc0(sizeof(*info->value));
3472 info->value->label = g_strdup(chr->label);
3473 info->value->filename = g_strdup(chr->filename);
3475 info->next = chr_list;
3482 CharDriverState *qemu_chr_find(const char *name)
3484 CharDriverState *chr;
3486 QTAILQ_FOREACH(chr, &chardevs, next) {
3487 if (strcmp(chr->label, name) != 0)
3494 /* Get a character (serial) device interface. */
3495 CharDriverState *qemu_char_get_next_serial(void)
3497 static int next_serial;
3499 /* FIXME: This function needs to go away: use chardev properties! */
3500 return serial_hds[next_serial++];
3503 QemuOptsList qemu_chardev_opts = {
3505 .implied_opt_name = "backend",
3506 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3510 .type = QEMU_OPT_STRING,
3513 .type = QEMU_OPT_STRING,
3516 .type = QEMU_OPT_STRING,
3519 .type = QEMU_OPT_STRING,
3521 .name = "localaddr",
3522 .type = QEMU_OPT_STRING,
3524 .name = "localport",
3525 .type = QEMU_OPT_STRING,
3528 .type = QEMU_OPT_NUMBER,
3531 .type = QEMU_OPT_BOOL,
3534 .type = QEMU_OPT_BOOL,
3537 .type = QEMU_OPT_BOOL,
3540 .type = QEMU_OPT_BOOL,
3543 .type = QEMU_OPT_BOOL,
3546 .type = QEMU_OPT_BOOL,
3549 .type = QEMU_OPT_NUMBER,
3552 .type = QEMU_OPT_NUMBER,
3555 .type = QEMU_OPT_NUMBER,
3558 .type = QEMU_OPT_NUMBER,
3561 .type = QEMU_OPT_BOOL,
3564 .type = QEMU_OPT_BOOL,
3567 .type = QEMU_OPT_STRING,
3570 .type = QEMU_OPT_NUMBER,
3573 .type = QEMU_OPT_SIZE,
3575 { /* end of list */ }
3581 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3586 error_setg(errp, "input file not supported");
3590 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3591 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3592 if (out == INVALID_HANDLE_VALUE) {
3593 error_setg(errp, "open %s failed", file->out);
3596 return qemu_chr_open_win_file(out);
3599 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3602 return qemu_chr_open_win_path(serial->device);
3605 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3608 error_setg(errp, "character device backend type 'parallel' not supported");
3614 static int qmp_chardev_open_file_source(char *src, int flags,
3619 TFR(fd = qemu_open(src, flags, 0666));
3621 error_setg(errp, "open %s: %s", src, strerror(errno));
3626 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3628 int flags, in = -1, out = -1;
3630 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3631 out = qmp_chardev_open_file_source(file->out, flags, errp);
3632 if (error_is_set(errp)) {
3638 in = qmp_chardev_open_file_source(file->in, flags, errp);
3639 if (error_is_set(errp)) {
3645 return qemu_chr_open_fd(in, out);
3648 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3651 #ifdef HAVE_CHARDEV_TTY
3654 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3655 if (error_is_set(errp)) {
3658 socket_set_nonblock(fd);
3659 return qemu_chr_open_tty_fd(fd);
3661 error_setg(errp, "character device backend type 'serial' not supported");
3666 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3669 #ifdef HAVE_CHARDEV_PARPORT
3672 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3673 if (error_is_set(errp)) {
3676 return qemu_chr_open_pp_fd(fd);
3678 error_setg(errp, "character device backend type 'parallel' not supported");
3685 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3688 SocketAddress *addr = sock->addr;
3689 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3690 bool is_listen = sock->has_server ? sock->server : true;
3691 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3692 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3696 fd = socket_listen(addr, errp);
3698 fd = socket_connect(addr, errp, NULL, NULL);
3700 if (error_is_set(errp)) {
3703 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3704 is_telnet, is_waitconnect, errp);
3707 static CharDriverState *qmp_chardev_open_dgram(ChardevDgram *dgram,
3712 fd = socket_dgram(dgram->remote, dgram->local, errp);
3713 if (error_is_set(errp)) {
3716 return qemu_chr_open_udp_fd(fd);
3719 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3722 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3723 CharDriverState *base, *chr = NULL;
3725 chr = qemu_chr_find(id);
3727 error_setg(errp, "Chardev '%s' already exists", id);
3732 switch (backend->kind) {
3733 case CHARDEV_BACKEND_KIND_FILE:
3734 chr = qmp_chardev_open_file(backend->file, errp);
3736 case CHARDEV_BACKEND_KIND_SERIAL:
3737 chr = qmp_chardev_open_serial(backend->serial, errp);
3739 case CHARDEV_BACKEND_KIND_PARALLEL:
3740 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3742 case CHARDEV_BACKEND_KIND_PIPE:
3743 chr = qemu_chr_open_pipe(backend->pipe);
3745 case CHARDEV_BACKEND_KIND_SOCKET:
3746 chr = qmp_chardev_open_socket(backend->socket, errp);
3748 case CHARDEV_BACKEND_KIND_DGRAM:
3749 chr = qmp_chardev_open_dgram(backend->dgram, errp);
3751 #ifdef HAVE_CHARDEV_TTY
3752 case CHARDEV_BACKEND_KIND_PTY:
3753 chr = qemu_chr_open_pty(id, ret);
3756 case CHARDEV_BACKEND_KIND_NULL:
3757 chr = qemu_chr_open_null();
3759 case CHARDEV_BACKEND_KIND_MUX:
3760 base = qemu_chr_find(backend->mux->chardev);
3762 error_setg(errp, "mux: base chardev %s not found",
3763 backend->mux->chardev);
3766 chr = qemu_chr_open_mux(base);
3768 case CHARDEV_BACKEND_KIND_MSMOUSE:
3769 chr = qemu_chr_open_msmouse();
3771 #ifdef CONFIG_BRLAPI
3772 case CHARDEV_BACKEND_KIND_BRAILLE:
3773 chr = chr_baum_init();
3776 case CHARDEV_BACKEND_KIND_STDIO:
3777 chr = qemu_chr_open_stdio(backend->stdio);
3780 case CHARDEV_BACKEND_KIND_CONSOLE:
3781 chr = qemu_chr_open_win_con();
3785 case CHARDEV_BACKEND_KIND_SPICEVMC:
3786 chr = qemu_chr_open_spice_vmc(backend->spicevmc->type);
3788 case CHARDEV_BACKEND_KIND_SPICEPORT:
3789 chr = qemu_chr_open_spice_port(backend->spiceport->fqdn);
3792 case CHARDEV_BACKEND_KIND_VC:
3793 chr = vc_init(backend->vc);
3795 case CHARDEV_BACKEND_KIND_MEMORY:
3796 chr = qemu_chr_open_ringbuf(backend->memory, errp);
3799 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3803 if (chr == NULL && !error_is_set(errp)) {
3804 error_setg(errp, "Failed to create chardev");
3807 chr->label = g_strdup(id);
3808 chr->avail_connections =
3809 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
3810 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3818 void qmp_chardev_remove(const char *id, Error **errp)
3820 CharDriverState *chr;
3822 chr = qemu_chr_find(id);
3824 error_setg(errp, "Chardev '%s' not found", id);
3827 if (chr->chr_can_read || chr->chr_read ||
3828 chr->chr_event || chr->handler_opaque) {
3829 error_setg(errp, "Chardev '%s' is busy", id);
3832 qemu_chr_delete(chr);
3835 static void register_types(void)
3837 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
3838 register_char_driver("socket", qemu_chr_open_socket);
3839 register_char_driver("udp", qemu_chr_open_udp);
3840 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
3841 qemu_chr_parse_ringbuf);
3842 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3843 qemu_chr_parse_file_out);
3844 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3845 qemu_chr_parse_stdio);
3846 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3847 qemu_chr_parse_serial);
3848 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3849 qemu_chr_parse_serial);
3850 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3851 qemu_chr_parse_parallel);
3852 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3853 qemu_chr_parse_parallel);
3854 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
3855 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
3856 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
3857 qemu_chr_parse_pipe);
3860 type_init(register_types);