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 /* Due to a glib bug, removing the last reference to a source
647 * inside a finalize callback causes recursive locking (and a
648 * deadlock). This is not a problem inside other callbacks,
649 * including dispatch callbacks, so we call io_remove_watch_poll
650 * to remove this source. At this point, iwp->src must
651 * be NULL, or we would leak it.
653 * This would be solved much more elegantly by child sources,
654 * but we support older glib versions that do not have them.
656 IOWatchPoll *iwp = io_watch_poll_from_source(source);
657 assert(iwp->src == NULL);
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,
676 iwp = (IOWatchPoll *) g_source_new(&io_watch_poll_funcs, sizeof(IOWatchPoll));
677 iwp->fd_can_read = fd_can_read;
678 iwp->opaque = user_data;
679 iwp->channel = channel;
680 iwp->fd_read = (GSourceFunc) fd_read;
683 tag = g_source_attach(&iwp->parent, NULL);
684 g_source_unref(&iwp->parent);
688 static void io_remove_watch_poll(guint tag)
693 g_return_if_fail (tag > 0);
695 source = g_main_context_find_source_by_id(NULL, tag);
696 g_return_if_fail (source != NULL);
698 iwp = io_watch_poll_from_source(source);
700 g_source_destroy(iwp->src);
701 g_source_unref(iwp->src);
704 g_source_destroy(&iwp->parent);
708 static GIOChannel *io_channel_from_fd(int fd)
716 chan = g_io_channel_unix_new(fd);
718 g_io_channel_set_encoding(chan, NULL, NULL);
719 g_io_channel_set_buffered(chan, FALSE);
725 static GIOChannel *io_channel_from_socket(int fd)
734 chan = g_io_channel_win32_new_socket(fd);
736 chan = g_io_channel_unix_new(fd);
739 g_io_channel_set_encoding(chan, NULL, NULL);
740 g_io_channel_set_buffered(chan, FALSE);
745 static int io_channel_send(GIOChannel *fd, const void *buf, size_t len)
751 while (offset < len) {
754 status = g_io_channel_write_chars(fd, buf + offset, len - offset,
755 &bytes_written, NULL);
756 if (status != G_IO_STATUS_NORMAL) {
757 if (status == G_IO_STATUS_AGAIN) {
758 /* If we've written any data, return a partial write. */
768 } else if (status == G_IO_STATUS_EOF) {
772 offset += bytes_written;
780 typedef struct FDCharDriver {
781 CharDriverState *chr;
782 GIOChannel *fd_in, *fd_out;
785 QTAILQ_ENTRY(FDCharDriver) node;
788 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
790 FDCharDriver *s = chr->opaque;
792 return io_channel_send(s->fd_out, buf, len);
795 static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
797 CharDriverState *chr = opaque;
798 FDCharDriver *s = chr->opaque;
800 uint8_t buf[READ_BUF_LEN];
805 if (len > s->max_size) {
812 status = g_io_channel_read_chars(chan, (gchar *)buf,
813 len, &bytes_read, NULL);
814 if (status == G_IO_STATUS_EOF) {
816 io_remove_watch_poll(s->fd_in_tag);
819 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
822 if (status == G_IO_STATUS_NORMAL) {
823 qemu_chr_be_write(chr, buf, bytes_read);
829 static int fd_chr_read_poll(void *opaque)
831 CharDriverState *chr = opaque;
832 FDCharDriver *s = chr->opaque;
834 s->max_size = qemu_chr_be_can_write(chr);
838 static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
840 FDCharDriver *s = chr->opaque;
841 return g_io_create_watch(s->fd_out, cond);
844 static void fd_chr_update_read_handler(CharDriverState *chr)
846 FDCharDriver *s = chr->opaque;
849 io_remove_watch_poll(s->fd_in_tag);
854 s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr);
858 static void fd_chr_close(struct CharDriverState *chr)
860 FDCharDriver *s = chr->opaque;
863 io_remove_watch_poll(s->fd_in_tag);
868 g_io_channel_unref(s->fd_in);
871 g_io_channel_unref(s->fd_out);
875 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
878 /* open a character device to a unix fd */
879 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
881 CharDriverState *chr;
884 chr = g_malloc0(sizeof(CharDriverState));
885 s = g_malloc0(sizeof(FDCharDriver));
886 s->fd_in = io_channel_from_fd(fd_in);
887 s->fd_out = io_channel_from_fd(fd_out);
888 fcntl(fd_out, F_SETFL, O_NONBLOCK);
891 chr->chr_add_watch = fd_chr_add_watch;
892 chr->chr_write = fd_chr_write;
893 chr->chr_update_read_handler = fd_chr_update_read_handler;
894 chr->chr_close = fd_chr_close;
896 qemu_chr_be_generic_open(chr);
901 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
904 char filename_in[256], filename_out[256];
905 const char *filename = opts->device;
907 if (filename == NULL) {
908 fprintf(stderr, "chardev: pipe: no filename given\n");
912 snprintf(filename_in, 256, "%s.in", filename);
913 snprintf(filename_out, 256, "%s.out", filename);
914 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
915 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
916 if (fd_in < 0 || fd_out < 0) {
921 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
926 return qemu_chr_open_fd(fd_in, fd_out);
929 /* init terminal so that we can grab keys */
930 static struct termios oldtty;
931 static int old_fd0_flags;
932 static bool stdio_allow_signal;
934 static void term_exit(void)
936 tcsetattr (0, TCSANOW, &oldtty);
937 fcntl(0, F_SETFL, old_fd0_flags);
940 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
946 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
947 |INLCR|IGNCR|ICRNL|IXON);
948 tty.c_oflag |= OPOST;
949 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
950 tty.c_cflag &= ~(CSIZE|PARENB);
955 /* if graphical mode, we allow Ctrl-C handling */
956 if (!stdio_allow_signal)
957 tty.c_lflag &= ~ISIG;
959 tcsetattr (0, TCSANOW, &tty);
962 static void qemu_chr_close_stdio(struct CharDriverState *chr)
968 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
970 CharDriverState *chr;
972 if (is_daemonized()) {
973 error_report("cannot use stdio with -daemonize");
976 old_fd0_flags = fcntl(0, F_GETFL);
977 tcgetattr (0, &oldtty);
978 fcntl(0, F_SETFL, O_NONBLOCK);
981 chr = qemu_chr_open_fd(0, 1);
982 chr->chr_close = qemu_chr_close_stdio;
983 chr->chr_set_echo = qemu_chr_set_echo_stdio;
984 stdio_allow_signal = display_type != DT_NOGRAPHIC;
985 if (opts->has_signal) {
986 stdio_allow_signal = opts->signal;
988 qemu_chr_fe_set_echo(chr, false);
994 /* Once Solaris has openpty(), this is going to be removed. */
995 static int openpty(int *amaster, int *aslave, char *name,
996 struct termios *termp, struct winsize *winp)
999 int mfd = -1, sfd = -1;
1001 *amaster = *aslave = -1;
1003 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
1007 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
1010 if ((slave = ptsname(mfd)) == NULL)
1013 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
1016 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
1017 (termp != NULL && tcgetattr(sfd, termp) < 0))
1025 ioctl(sfd, TIOCSWINSZ, winp);
1036 static void cfmakeraw (struct termios *termios_p)
1038 termios_p->c_iflag &=
1039 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
1040 termios_p->c_oflag &= ~OPOST;
1041 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
1042 termios_p->c_cflag &= ~(CSIZE|PARENB);
1043 termios_p->c_cflag |= CS8;
1045 termios_p->c_cc[VMIN] = 0;
1046 termios_p->c_cc[VTIME] = 0;
1050 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
1051 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
1052 || defined(__GLIBC__)
1054 #define HAVE_CHARDEV_TTY 1
1064 static void pty_chr_update_read_handler(CharDriverState *chr);
1065 static void pty_chr_state(CharDriverState *chr, int connected);
1067 static gboolean pty_chr_timer(gpointer opaque)
1069 struct CharDriverState *chr = opaque;
1070 PtyCharDriver *s = chr->opaque;
1077 pty_chr_update_read_handler(chr);
1083 static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
1085 PtyCharDriver *s = chr->opaque;
1088 g_source_remove(s->timer_tag);
1093 s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
1095 s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
1099 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1101 PtyCharDriver *s = chr->opaque;
1103 if (!s->connected) {
1104 /* guest sends data, check for (re-)connect */
1105 pty_chr_update_read_handler(chr);
1108 return io_channel_send(s->fd, buf, len);
1111 static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
1113 PtyCharDriver *s = chr->opaque;
1114 return g_io_create_watch(s->fd, cond);
1117 static int pty_chr_read_poll(void *opaque)
1119 CharDriverState *chr = opaque;
1120 PtyCharDriver *s = chr->opaque;
1122 s->read_bytes = qemu_chr_be_can_write(chr);
1123 return s->read_bytes;
1126 static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
1128 CharDriverState *chr = opaque;
1129 PtyCharDriver *s = chr->opaque;
1131 uint8_t buf[READ_BUF_LEN];
1135 if (len > s->read_bytes)
1136 len = s->read_bytes;
1140 status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
1141 if (status != G_IO_STATUS_NORMAL) {
1142 pty_chr_state(chr, 0);
1145 pty_chr_state(chr, 1);
1146 qemu_chr_be_write(chr, buf, size);
1151 static void pty_chr_update_read_handler(CharDriverState *chr)
1153 PtyCharDriver *s = chr->opaque;
1156 pfd.fd = g_io_channel_unix_get_fd(s->fd);
1157 pfd.events = G_IO_OUT;
1160 if (pfd.revents & G_IO_HUP) {
1161 pty_chr_state(chr, 0);
1163 pty_chr_state(chr, 1);
1167 static void pty_chr_state(CharDriverState *chr, int connected)
1169 PtyCharDriver *s = chr->opaque;
1173 io_remove_watch_poll(s->fd_tag);
1177 /* (re-)connect poll interval for idle guests: once per second.
1178 * We check more frequently in case the guests sends data to
1179 * the virtual device linked to our pty. */
1180 pty_chr_rearm_timer(chr, 1000);
1183 g_source_remove(s->timer_tag);
1186 if (!s->connected) {
1187 qemu_chr_be_generic_open(chr);
1189 s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr);
1195 static void pty_chr_close(struct CharDriverState *chr)
1197 PtyCharDriver *s = chr->opaque;
1201 io_remove_watch_poll(s->fd_tag);
1204 fd = g_io_channel_unix_get_fd(s->fd);
1205 g_io_channel_unref(s->fd);
1208 g_source_remove(s->timer_tag);
1212 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1215 static CharDriverState *qemu_chr_open_pty(const char *id,
1218 CharDriverState *chr;
1221 int master_fd, slave_fd;
1222 #if defined(__OpenBSD__) || defined(__DragonFly__)
1223 char pty_name[PATH_MAX];
1224 #define q_ptsname(x) pty_name
1226 char *pty_name = NULL;
1227 #define q_ptsname(x) ptsname(x)
1230 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
1234 /* Set raw attributes on the pty. */
1235 tcgetattr(slave_fd, &tty);
1237 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1240 chr = g_malloc0(sizeof(CharDriverState));
1242 chr->filename = g_strdup_printf("pty:%s", q_ptsname(master_fd));
1243 ret->pty = g_strdup(q_ptsname(master_fd));
1244 ret->has_pty = true;
1246 fprintf(stderr, "char device redirected to %s (label %s)\n",
1247 q_ptsname(master_fd), id);
1249 s = g_malloc0(sizeof(PtyCharDriver));
1251 chr->chr_write = pty_chr_write;
1252 chr->chr_update_read_handler = pty_chr_update_read_handler;
1253 chr->chr_close = pty_chr_close;
1254 chr->chr_add_watch = pty_chr_add_watch;
1256 s->fd = io_channel_from_fd(master_fd);
1262 static void tty_serial_init(int fd, int speed,
1263 int parity, int data_bits, int stop_bits)
1269 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1270 speed, parity, data_bits, stop_bits);
1272 tcgetattr (fd, &tty);
1274 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1275 speed = speed * 10 / 11;
1292 /* Non-Posix values follow. They may be unsupported on some systems. */
1294 check_speed(115200);
1296 check_speed(230400);
1299 check_speed(460800);
1302 check_speed(500000);
1305 check_speed(576000);
1308 check_speed(921600);
1311 check_speed(1000000);
1314 check_speed(1152000);
1317 check_speed(1500000);
1320 check_speed(2000000);
1323 check_speed(2500000);
1326 check_speed(3000000);
1329 check_speed(3500000);
1332 check_speed(4000000);
1337 cfsetispeed(&tty, spd);
1338 cfsetospeed(&tty, spd);
1340 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1341 |INLCR|IGNCR|ICRNL|IXON);
1342 tty.c_oflag |= OPOST;
1343 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1344 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1365 tty.c_cflag |= PARENB;
1368 tty.c_cflag |= PARENB | PARODD;
1372 tty.c_cflag |= CSTOPB;
1374 tcsetattr (fd, TCSANOW, &tty);
1377 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1379 FDCharDriver *s = chr->opaque;
1382 case CHR_IOCTL_SERIAL_SET_PARAMS:
1384 QEMUSerialSetParams *ssp = arg;
1385 tty_serial_init(g_io_channel_unix_get_fd(s->fd_in),
1386 ssp->speed, ssp->parity,
1387 ssp->data_bits, ssp->stop_bits);
1390 case CHR_IOCTL_SERIAL_SET_BREAK:
1392 int enable = *(int *)arg;
1394 tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
1398 case CHR_IOCTL_SERIAL_GET_TIOCM:
1401 int *targ = (int *)arg;
1402 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg);
1404 if (sarg & TIOCM_CTS)
1405 *targ |= CHR_TIOCM_CTS;
1406 if (sarg & TIOCM_CAR)
1407 *targ |= CHR_TIOCM_CAR;
1408 if (sarg & TIOCM_DSR)
1409 *targ |= CHR_TIOCM_DSR;
1410 if (sarg & TIOCM_RI)
1411 *targ |= CHR_TIOCM_RI;
1412 if (sarg & TIOCM_DTR)
1413 *targ |= CHR_TIOCM_DTR;
1414 if (sarg & TIOCM_RTS)
1415 *targ |= CHR_TIOCM_RTS;
1418 case CHR_IOCTL_SERIAL_SET_TIOCM:
1420 int sarg = *(int *)arg;
1422 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ);
1423 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1424 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1425 if (sarg & CHR_TIOCM_CTS)
1427 if (sarg & CHR_TIOCM_CAR)
1429 if (sarg & CHR_TIOCM_DSR)
1431 if (sarg & CHR_TIOCM_RI)
1433 if (sarg & CHR_TIOCM_DTR)
1435 if (sarg & CHR_TIOCM_RTS)
1437 ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ);
1446 static void qemu_chr_close_tty(CharDriverState *chr)
1448 FDCharDriver *s = chr->opaque;
1452 fd = g_io_channel_unix_get_fd(s->fd_in);
1462 static CharDriverState *qemu_chr_open_tty_fd(int fd)
1464 CharDriverState *chr;
1466 tty_serial_init(fd, 115200, 'N', 8, 1);
1467 chr = qemu_chr_open_fd(fd, fd);
1468 chr->chr_ioctl = tty_serial_ioctl;
1469 chr->chr_close = qemu_chr_close_tty;
1472 #endif /* __linux__ || __sun__ */
1474 #if defined(__linux__)
1476 #define HAVE_CHARDEV_PARPORT 1
1481 } ParallelCharDriver;
1483 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1485 if (s->mode != mode) {
1487 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1494 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1496 ParallelCharDriver *drv = chr->opaque;
1501 case CHR_IOCTL_PP_READ_DATA:
1502 if (ioctl(fd, PPRDATA, &b) < 0)
1504 *(uint8_t *)arg = b;
1506 case CHR_IOCTL_PP_WRITE_DATA:
1507 b = *(uint8_t *)arg;
1508 if (ioctl(fd, PPWDATA, &b) < 0)
1511 case CHR_IOCTL_PP_READ_CONTROL:
1512 if (ioctl(fd, PPRCONTROL, &b) < 0)
1514 /* Linux gives only the lowest bits, and no way to know data
1515 direction! For better compatibility set the fixed upper
1517 *(uint8_t *)arg = b | 0xc0;
1519 case CHR_IOCTL_PP_WRITE_CONTROL:
1520 b = *(uint8_t *)arg;
1521 if (ioctl(fd, PPWCONTROL, &b) < 0)
1524 case CHR_IOCTL_PP_READ_STATUS:
1525 if (ioctl(fd, PPRSTATUS, &b) < 0)
1527 *(uint8_t *)arg = b;
1529 case CHR_IOCTL_PP_DATA_DIR:
1530 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1533 case CHR_IOCTL_PP_EPP_READ_ADDR:
1534 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1535 struct ParallelIOArg *parg = arg;
1536 int n = read(fd, parg->buffer, parg->count);
1537 if (n != parg->count) {
1542 case CHR_IOCTL_PP_EPP_READ:
1543 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1544 struct ParallelIOArg *parg = arg;
1545 int n = read(fd, parg->buffer, parg->count);
1546 if (n != parg->count) {
1551 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1552 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1553 struct ParallelIOArg *parg = arg;
1554 int n = write(fd, parg->buffer, parg->count);
1555 if (n != parg->count) {
1560 case CHR_IOCTL_PP_EPP_WRITE:
1561 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1562 struct ParallelIOArg *parg = arg;
1563 int n = write(fd, parg->buffer, parg->count);
1564 if (n != parg->count) {
1575 static void pp_close(CharDriverState *chr)
1577 ParallelCharDriver *drv = chr->opaque;
1580 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1581 ioctl(fd, PPRELEASE);
1584 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1587 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1589 CharDriverState *chr;
1590 ParallelCharDriver *drv;
1592 if (ioctl(fd, PPCLAIM) < 0) {
1597 drv = g_malloc0(sizeof(ParallelCharDriver));
1599 drv->mode = IEEE1284_MODE_COMPAT;
1601 chr = g_malloc0(sizeof(CharDriverState));
1602 chr->chr_write = null_chr_write;
1603 chr->chr_ioctl = pp_ioctl;
1604 chr->chr_close = pp_close;
1607 qemu_chr_be_generic_open(chr);
1611 #endif /* __linux__ */
1613 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1615 #define HAVE_CHARDEV_PARPORT 1
1617 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1619 int fd = (int)(intptr_t)chr->opaque;
1623 case CHR_IOCTL_PP_READ_DATA:
1624 if (ioctl(fd, PPIGDATA, &b) < 0)
1626 *(uint8_t *)arg = b;
1628 case CHR_IOCTL_PP_WRITE_DATA:
1629 b = *(uint8_t *)arg;
1630 if (ioctl(fd, PPISDATA, &b) < 0)
1633 case CHR_IOCTL_PP_READ_CONTROL:
1634 if (ioctl(fd, PPIGCTRL, &b) < 0)
1636 *(uint8_t *)arg = b;
1638 case CHR_IOCTL_PP_WRITE_CONTROL:
1639 b = *(uint8_t *)arg;
1640 if (ioctl(fd, PPISCTRL, &b) < 0)
1643 case CHR_IOCTL_PP_READ_STATUS:
1644 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1646 *(uint8_t *)arg = b;
1654 static CharDriverState *qemu_chr_open_pp_fd(int fd)
1656 CharDriverState *chr;
1658 chr = g_malloc0(sizeof(CharDriverState));
1659 chr->opaque = (void *)(intptr_t)fd;
1660 chr->chr_write = null_chr_write;
1661 chr->chr_ioctl = pp_ioctl;
1670 HANDLE hcom, hrecv, hsend;
1671 OVERLAPPED orecv, osend;
1678 HANDLE hInputReadyEvent;
1679 HANDLE hInputDoneEvent;
1680 HANDLE hInputThread;
1681 uint8_t win_stdio_buf;
1682 } WinStdioCharState;
1684 #define NSENDBUF 2048
1685 #define NRECVBUF 2048
1686 #define MAXCONNECT 1
1687 #define NTIMEOUT 5000
1689 static int win_chr_poll(void *opaque);
1690 static int win_chr_pipe_poll(void *opaque);
1692 static void win_chr_close(CharDriverState *chr)
1694 WinCharState *s = chr->opaque;
1697 CloseHandle(s->hsend);
1701 CloseHandle(s->hrecv);
1705 CloseHandle(s->hcom);
1709 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1711 qemu_del_polling_cb(win_chr_poll, chr);
1713 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1716 static int win_chr_init(CharDriverState *chr, const char *filename)
1718 WinCharState *s = chr->opaque;
1720 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1725 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1727 fprintf(stderr, "Failed CreateEvent\n");
1730 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1732 fprintf(stderr, "Failed CreateEvent\n");
1736 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1737 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1738 if (s->hcom == INVALID_HANDLE_VALUE) {
1739 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1744 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1745 fprintf(stderr, "Failed SetupComm\n");
1749 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1750 size = sizeof(COMMCONFIG);
1751 GetDefaultCommConfig(filename, &comcfg, &size);
1752 comcfg.dcb.DCBlength = sizeof(DCB);
1753 CommConfigDialog(filename, NULL, &comcfg);
1755 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1756 fprintf(stderr, "Failed SetCommState\n");
1760 if (!SetCommMask(s->hcom, EV_ERR)) {
1761 fprintf(stderr, "Failed SetCommMask\n");
1765 cto.ReadIntervalTimeout = MAXDWORD;
1766 if (!SetCommTimeouts(s->hcom, &cto)) {
1767 fprintf(stderr, "Failed SetCommTimeouts\n");
1771 if (!ClearCommError(s->hcom, &err, &comstat)) {
1772 fprintf(stderr, "Failed ClearCommError\n");
1775 qemu_add_polling_cb(win_chr_poll, chr);
1783 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1785 WinCharState *s = chr->opaque;
1786 DWORD len, ret, size, err;
1789 ZeroMemory(&s->osend, sizeof(s->osend));
1790 s->osend.hEvent = s->hsend;
1793 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1795 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1797 err = GetLastError();
1798 if (err == ERROR_IO_PENDING) {
1799 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1817 static int win_chr_read_poll(CharDriverState *chr)
1819 WinCharState *s = chr->opaque;
1821 s->max_size = qemu_chr_be_can_write(chr);
1825 static void win_chr_readfile(CharDriverState *chr)
1827 WinCharState *s = chr->opaque;
1829 uint8_t buf[READ_BUF_LEN];
1832 ZeroMemory(&s->orecv, sizeof(s->orecv));
1833 s->orecv.hEvent = s->hrecv;
1834 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1836 err = GetLastError();
1837 if (err == ERROR_IO_PENDING) {
1838 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1843 qemu_chr_be_write(chr, buf, size);
1847 static void win_chr_read(CharDriverState *chr)
1849 WinCharState *s = chr->opaque;
1851 if (s->len > s->max_size)
1852 s->len = s->max_size;
1856 win_chr_readfile(chr);
1859 static int win_chr_poll(void *opaque)
1861 CharDriverState *chr = opaque;
1862 WinCharState *s = chr->opaque;
1866 ClearCommError(s->hcom, &comerr, &status);
1867 if (status.cbInQue > 0) {
1868 s->len = status.cbInQue;
1869 win_chr_read_poll(chr);
1876 static CharDriverState *qemu_chr_open_win_path(const char *filename)
1878 CharDriverState *chr;
1881 chr = g_malloc0(sizeof(CharDriverState));
1882 s = g_malloc0(sizeof(WinCharState));
1884 chr->chr_write = win_chr_write;
1885 chr->chr_close = win_chr_close;
1887 if (win_chr_init(chr, filename) < 0) {
1892 qemu_chr_be_generic_open(chr);
1896 static int win_chr_pipe_poll(void *opaque)
1898 CharDriverState *chr = opaque;
1899 WinCharState *s = chr->opaque;
1902 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1905 win_chr_read_poll(chr);
1912 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1914 WinCharState *s = chr->opaque;
1922 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1924 fprintf(stderr, "Failed CreateEvent\n");
1927 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1929 fprintf(stderr, "Failed CreateEvent\n");
1933 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1934 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1935 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1937 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1938 if (s->hcom == INVALID_HANDLE_VALUE) {
1939 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1944 ZeroMemory(&ov, sizeof(ov));
1945 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1946 ret = ConnectNamedPipe(s->hcom, &ov);
1948 fprintf(stderr, "Failed ConnectNamedPipe\n");
1952 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1954 fprintf(stderr, "Failed GetOverlappedResult\n");
1956 CloseHandle(ov.hEvent);
1963 CloseHandle(ov.hEvent);
1966 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1975 static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
1977 const char *filename = opts->device;
1978 CharDriverState *chr;
1981 chr = g_malloc0(sizeof(CharDriverState));
1982 s = g_malloc0(sizeof(WinCharState));
1984 chr->chr_write = win_chr_write;
1985 chr->chr_close = win_chr_close;
1987 if (win_chr_pipe_init(chr, filename) < 0) {
1992 qemu_chr_be_generic_open(chr);
1996 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1998 CharDriverState *chr;
2001 chr = g_malloc0(sizeof(CharDriverState));
2002 s = g_malloc0(sizeof(WinCharState));
2005 chr->chr_write = win_chr_write;
2006 qemu_chr_be_generic_open(chr);
2010 static CharDriverState *qemu_chr_open_win_con(void)
2012 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
2015 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
2017 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
2024 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
2034 static void win_stdio_wait_func(void *opaque)
2036 CharDriverState *chr = opaque;
2037 WinStdioCharState *stdio = chr->opaque;
2038 INPUT_RECORD buf[4];
2043 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
2047 /* Avoid error storm */
2048 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
2052 for (i = 0; i < dwSize; i++) {
2053 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
2055 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
2057 if (kev->uChar.AsciiChar != 0) {
2058 for (j = 0; j < kev->wRepeatCount; j++) {
2059 if (qemu_chr_be_can_write(chr)) {
2060 uint8_t c = kev->uChar.AsciiChar;
2061 qemu_chr_be_write(chr, &c, 1);
2069 static DWORD WINAPI win_stdio_thread(LPVOID param)
2071 CharDriverState *chr = param;
2072 WinStdioCharState *stdio = chr->opaque;
2078 /* Wait for one byte */
2079 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
2081 /* Exit in case of error, continue if nothing read */
2089 /* Some terminal emulator returns \r\n for Enter, just pass \n */
2090 if (stdio->win_stdio_buf == '\r') {
2094 /* Signal the main thread and wait until the byte was eaten */
2095 if (!SetEvent(stdio->hInputReadyEvent)) {
2098 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
2104 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
2108 static void win_stdio_thread_wait_func(void *opaque)
2110 CharDriverState *chr = opaque;
2111 WinStdioCharState *stdio = chr->opaque;
2113 if (qemu_chr_be_can_write(chr)) {
2114 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
2117 SetEvent(stdio->hInputDoneEvent);
2120 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
2122 WinStdioCharState *stdio = chr->opaque;
2125 GetConsoleMode(stdio->hStdIn, &dwMode);
2128 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
2130 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
2134 static void win_stdio_close(CharDriverState *chr)
2136 WinStdioCharState *stdio = chr->opaque;
2138 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
2139 CloseHandle(stdio->hInputReadyEvent);
2141 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
2142 CloseHandle(stdio->hInputDoneEvent);
2144 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
2145 TerminateThread(stdio->hInputThread, 0);
2148 g_free(chr->opaque);
2152 static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
2154 CharDriverState *chr;
2155 WinStdioCharState *stdio;
2159 chr = g_malloc0(sizeof(CharDriverState));
2160 stdio = g_malloc0(sizeof(WinStdioCharState));
2162 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
2163 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
2164 fprintf(stderr, "cannot open stdio: invalid handle\n");
2168 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
2170 chr->opaque = stdio;
2171 chr->chr_write = win_stdio_write;
2172 chr->chr_close = win_stdio_close;
2175 if (qemu_add_wait_object(stdio->hStdIn,
2176 win_stdio_wait_func, chr)) {
2177 fprintf(stderr, "qemu_add_wait_object: failed\n");
2182 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2183 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
2184 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
2187 if (stdio->hInputThread == INVALID_HANDLE_VALUE
2188 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
2189 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
2190 fprintf(stderr, "cannot create stdio thread or event\n");
2193 if (qemu_add_wait_object(stdio->hInputReadyEvent,
2194 win_stdio_thread_wait_func, chr)) {
2195 fprintf(stderr, "qemu_add_wait_object: failed\n");
2199 dwMode |= ENABLE_LINE_INPUT;
2202 /* set the terminal in raw mode */
2203 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2204 dwMode |= ENABLE_PROCESSED_INPUT;
2207 SetConsoleMode(stdio->hStdIn, dwMode);
2209 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2210 qemu_chr_fe_set_echo(chr, false);
2214 #endif /* !_WIN32 */
2217 /***********************************************************/
2218 /* UDP Net console */
2224 uint8_t buf[READ_BUF_LEN];
2230 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2232 NetCharDriver *s = chr->opaque;
2233 gsize bytes_written;
2236 status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL);
2237 if (status == G_IO_STATUS_EOF) {
2239 } else if (status != G_IO_STATUS_NORMAL) {
2243 return bytes_written;
2246 static int udp_chr_read_poll(void *opaque)
2248 CharDriverState *chr = opaque;
2249 NetCharDriver *s = chr->opaque;
2251 s->max_size = qemu_chr_be_can_write(chr);
2253 /* If there were any stray characters in the queue process them
2256 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2257 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2259 s->max_size = qemu_chr_be_can_write(chr);
2264 static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2266 CharDriverState *chr = opaque;
2267 NetCharDriver *s = chr->opaque;
2268 gsize bytes_read = 0;
2271 if (s->max_size == 0) {
2274 status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
2276 s->bufcnt = bytes_read;
2277 s->bufptr = s->bufcnt;
2278 if (status != G_IO_STATUS_NORMAL) {
2280 io_remove_watch_poll(s->tag);
2287 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2288 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2290 s->max_size = qemu_chr_be_can_write(chr);
2296 static void udp_chr_update_read_handler(CharDriverState *chr)
2298 NetCharDriver *s = chr->opaque;
2301 io_remove_watch_poll(s->tag);
2306 s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr);
2310 static void udp_chr_close(CharDriverState *chr)
2312 NetCharDriver *s = chr->opaque;
2314 io_remove_watch_poll(s->tag);
2318 g_io_channel_unref(s->chan);
2322 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2325 static CharDriverState *qemu_chr_open_udp_fd(int fd)
2327 CharDriverState *chr = NULL;
2328 NetCharDriver *s = NULL;
2330 chr = g_malloc0(sizeof(CharDriverState));
2331 s = g_malloc0(sizeof(NetCharDriver));
2334 s->chan = io_channel_from_socket(s->fd);
2338 chr->chr_write = udp_chr_write;
2339 chr->chr_update_read_handler = udp_chr_update_read_handler;
2340 chr->chr_close = udp_chr_close;
2344 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2346 Error *local_err = NULL;
2349 fd = inet_dgram_opts(opts, &local_err);
2353 return qemu_chr_open_udp_fd(fd);
2356 /***********************************************************/
2357 /* TCP Net console */
2361 GIOChannel *chan, *listen_chan;
2362 guint tag, listen_tag;
2372 static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque);
2374 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2376 TCPCharDriver *s = chr->opaque;
2378 return io_channel_send(s->chan, buf, len);
2380 /* XXX: indicate an error ? */
2385 static int tcp_chr_read_poll(void *opaque)
2387 CharDriverState *chr = opaque;
2388 TCPCharDriver *s = chr->opaque;
2391 s->max_size = qemu_chr_be_can_write(chr);
2396 #define IAC_BREAK 243
2397 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2399 uint8_t *buf, int *size)
2401 /* Handle any telnet client's basic IAC options to satisfy char by
2402 * char mode with no echo. All IAC options will be removed from
2403 * the buf and the do_telnetopt variable will be used to track the
2404 * state of the width of the IAC information.
2406 * IAC commands come in sets of 3 bytes with the exception of the
2407 * "IAC BREAK" command and the double IAC.
2413 for (i = 0; i < *size; i++) {
2414 if (s->do_telnetopt > 1) {
2415 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2416 /* Double IAC means send an IAC */
2420 s->do_telnetopt = 1;
2422 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2423 /* Handle IAC break commands by sending a serial break */
2424 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2429 if (s->do_telnetopt >= 4) {
2430 s->do_telnetopt = 1;
2433 if ((unsigned char)buf[i] == IAC) {
2434 s->do_telnetopt = 2;
2445 static int tcp_get_msgfd(CharDriverState *chr)
2447 TCPCharDriver *s = chr->opaque;
2454 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2456 TCPCharDriver *s = chr->opaque;
2457 struct cmsghdr *cmsg;
2459 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2462 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2463 cmsg->cmsg_level != SOL_SOCKET ||
2464 cmsg->cmsg_type != SCM_RIGHTS)
2467 fd = *((int *)CMSG_DATA(cmsg));
2471 /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
2474 #ifndef MSG_CMSG_CLOEXEC
2475 qemu_set_cloexec(fd);
2483 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2485 TCPCharDriver *s = chr->opaque;
2486 struct msghdr msg = { NULL, };
2487 struct iovec iov[1];
2489 struct cmsghdr cmsg;
2490 char control[CMSG_SPACE(sizeof(int))];
2495 iov[0].iov_base = buf;
2496 iov[0].iov_len = len;
2500 msg.msg_control = &msg_control;
2501 msg.msg_controllen = sizeof(msg_control);
2503 #ifdef MSG_CMSG_CLOEXEC
2504 flags |= MSG_CMSG_CLOEXEC;
2506 ret = recvmsg(s->fd, &msg, flags);
2507 if (ret > 0 && s->is_unix) {
2508 unix_process_msgfd(chr, &msg);
2514 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2516 TCPCharDriver *s = chr->opaque;
2517 return qemu_recv(s->fd, buf, len, 0);
2521 static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
2523 TCPCharDriver *s = chr->opaque;
2524 return g_io_create_watch(s->chan, cond);
2527 static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
2529 CharDriverState *chr = opaque;
2530 TCPCharDriver *s = chr->opaque;
2531 uint8_t buf[READ_BUF_LEN];
2534 if (!s->connected || s->max_size <= 0) {
2538 if (len > s->max_size)
2540 size = tcp_chr_recv(chr, (void *)buf, len);
2542 /* connection closed */
2544 if (s->listen_chan) {
2545 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2548 io_remove_watch_poll(s->tag);
2551 g_io_channel_unref(s->chan);
2555 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2556 } else if (size > 0) {
2557 if (s->do_telnetopt)
2558 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2560 qemu_chr_be_write(chr, buf, size);
2567 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2569 return qemu_chr_open_fd(eventfd, eventfd);
2573 static void tcp_chr_connect(void *opaque)
2575 CharDriverState *chr = opaque;
2576 TCPCharDriver *s = chr->opaque;
2580 s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr);
2582 qemu_chr_be_generic_open(chr);
2585 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2586 static void tcp_chr_telnet_init(int fd)
2589 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2590 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2591 send(fd, (char *)buf, 3, 0);
2592 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2593 send(fd, (char *)buf, 3, 0);
2594 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2595 send(fd, (char *)buf, 3, 0);
2596 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2597 send(fd, (char *)buf, 3, 0);
2600 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2602 TCPCharDriver *s = chr->opaque;
2606 qemu_set_nonblock(fd);
2608 socket_set_nodelay(fd);
2610 s->chan = io_channel_from_socket(fd);
2611 if (s->listen_tag) {
2612 g_source_remove(s->listen_tag);
2615 tcp_chr_connect(chr);
2620 static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque)
2622 CharDriverState *chr = opaque;
2623 TCPCharDriver *s = chr->opaque;
2624 struct sockaddr_in saddr;
2626 struct sockaddr_un uaddr;
2628 struct sockaddr *addr;
2635 len = sizeof(uaddr);
2636 addr = (struct sockaddr *)&uaddr;
2640 len = sizeof(saddr);
2641 addr = (struct sockaddr *)&saddr;
2643 fd = qemu_accept(s->listen_fd, addr, &len);
2644 if (fd < 0 && errno != EINTR) {
2646 } else if (fd >= 0) {
2647 if (s->do_telnetopt)
2648 tcp_chr_telnet_init(fd);
2652 if (tcp_chr_add_client(chr, fd) < 0)
2658 static void tcp_chr_close(CharDriverState *chr)
2660 TCPCharDriver *s = chr->opaque;
2663 io_remove_watch_poll(s->tag);
2667 g_io_channel_unref(s->chan);
2671 if (s->listen_fd >= 0) {
2672 if (s->listen_tag) {
2673 g_source_remove(s->listen_tag);
2676 if (s->listen_chan) {
2677 g_io_channel_unref(s->listen_chan);
2679 closesocket(s->listen_fd);
2682 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2685 static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
2686 bool is_listen, bool is_telnet,
2687 bool is_waitconnect,
2690 CharDriverState *chr = NULL;
2691 TCPCharDriver *s = NULL;
2692 char host[NI_MAXHOST], serv[NI_MAXSERV];
2693 const char *left = "", *right = "";
2694 struct sockaddr_storage ss;
2695 socklen_t ss_len = sizeof(ss);
2697 memset(&ss, 0, ss_len);
2698 if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
2699 error_setg(errp, "getsockname: %s", strerror(errno));
2703 chr = g_malloc0(sizeof(CharDriverState));
2704 s = g_malloc0(sizeof(TCPCharDriver));
2711 chr->filename = g_malloc(256);
2712 switch (ss.ss_family) {
2716 snprintf(chr->filename, 256, "unix:%s%s",
2717 ((struct sockaddr_un *)(&ss))->sun_path,
2718 is_listen ? ",server" : "");
2726 s->do_nodelay = do_nodelay;
2727 getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
2728 serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
2729 snprintf(chr->filename, 256, "%s:%s%s%s:%s%s",
2730 is_telnet ? "telnet" : "tcp",
2731 left, host, right, serv,
2732 is_listen ? ",server" : "");
2737 chr->chr_write = tcp_chr_write;
2738 chr->chr_close = tcp_chr_close;
2739 chr->get_msgfd = tcp_get_msgfd;
2740 chr->chr_add_client = tcp_chr_add_client;
2741 chr->chr_add_watch = tcp_chr_add_watch;
2745 s->listen_chan = io_channel_from_socket(s->listen_fd);
2746 s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
2748 s->do_telnetopt = 1;
2753 socket_set_nodelay(fd);
2754 s->chan = io_channel_from_socket(s->fd);
2755 tcp_chr_connect(chr);
2758 if (is_listen && is_waitconnect) {
2759 printf("QEMU waiting for connection on: %s\n",
2761 tcp_chr_accept(s->listen_chan, G_IO_IN, chr);
2762 qemu_set_nonblock(s->listen_fd);
2767 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2769 CharDriverState *chr = NULL;
2770 Error *local_err = NULL;
2778 is_listen = qemu_opt_get_bool(opts, "server", 0);
2779 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2780 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2781 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2782 is_unix = qemu_opt_get(opts, "path") != NULL;
2788 fd = unix_listen_opts(opts, &local_err);
2790 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2794 fd = inet_listen_opts(opts, 0, &local_err);
2796 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2803 if (!is_waitconnect)
2804 qemu_set_nonblock(fd);
2806 chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
2807 is_waitconnect, &local_err);
2808 if (error_is_set(&local_err)) {
2816 qerror_report_err(local_err);
2817 error_free(local_err);
2823 g_free(chr->opaque);
2829 /*********************************************************/
2830 /* Ring buffer chardev */
2837 } RingBufCharDriver;
2839 static size_t ringbuf_count(const CharDriverState *chr)
2841 const RingBufCharDriver *d = chr->opaque;
2843 return d->prod - d->cons;
2846 static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2848 RingBufCharDriver *d = chr->opaque;
2851 if (!buf || (len < 0)) {
2855 for (i = 0; i < len; i++ ) {
2856 d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
2857 if (d->prod - d->cons > d->size) {
2858 d->cons = d->prod - d->size;
2865 static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
2867 RingBufCharDriver *d = chr->opaque;
2870 for (i = 0; i < len && d->cons != d->prod; i++) {
2871 buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
2877 static void ringbuf_chr_close(struct CharDriverState *chr)
2879 RingBufCharDriver *d = chr->opaque;
2886 static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
2889 CharDriverState *chr;
2890 RingBufCharDriver *d;
2892 chr = g_malloc0(sizeof(CharDriverState));
2893 d = g_malloc(sizeof(*d));
2895 d->size = opts->has_size ? opts->size : 65536;
2897 /* The size must be power of 2 */
2898 if (d->size & (d->size - 1)) {
2899 error_setg(errp, "size of ringbuf chardev must be power of two");
2905 d->cbuf = g_malloc0(d->size);
2908 chr->chr_write = ringbuf_chr_write;
2909 chr->chr_close = ringbuf_chr_close;
2919 static bool chr_is_ringbuf(const CharDriverState *chr)
2921 return chr->chr_write == ringbuf_chr_write;
2924 void qmp_ringbuf_write(const char *device, const char *data,
2925 bool has_format, enum DataFormat format,
2928 CharDriverState *chr;
2929 const uint8_t *write_data;
2933 chr = qemu_chr_find(device);
2935 error_setg(errp, "Device '%s' not found", device);
2939 if (!chr_is_ringbuf(chr)) {
2940 error_setg(errp,"%s is not a ringbuf device", device);
2944 if (has_format && (format == DATA_FORMAT_BASE64)) {
2945 write_data = g_base64_decode(data, &write_count);
2947 write_data = (uint8_t *)data;
2948 write_count = strlen(data);
2951 ret = ringbuf_chr_write(chr, write_data, write_count);
2953 if (write_data != (uint8_t *)data) {
2954 g_free((void *)write_data);
2958 error_setg(errp, "Failed to write to device %s", device);
2963 char *qmp_ringbuf_read(const char *device, int64_t size,
2964 bool has_format, enum DataFormat format,
2967 CharDriverState *chr;
2972 chr = qemu_chr_find(device);
2974 error_setg(errp, "Device '%s' not found", device);
2978 if (!chr_is_ringbuf(chr)) {
2979 error_setg(errp,"%s is not a ringbuf device", device);
2984 error_setg(errp, "size must be greater than zero");
2988 count = ringbuf_count(chr);
2989 size = size > count ? count : size;
2990 read_data = g_malloc(size + 1);
2992 ringbuf_chr_read(chr, read_data, size);
2994 if (has_format && (format == DATA_FORMAT_BASE64)) {
2995 data = g_base64_encode(read_data, size);
2999 * FIXME should read only complete, valid UTF-8 characters up
3000 * to @size bytes. Invalid sequences should be replaced by a
3001 * suitable replacement character. Except when (and only
3002 * when) ring buffer lost characters since last read, initial
3003 * continuation characters should be dropped.
3005 read_data[size] = 0;
3006 data = (char *)read_data;
3012 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
3014 char host[65], port[33], width[8], height[8];
3018 Error *local_err = NULL;
3020 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
3021 if (error_is_set(&local_err)) {
3022 qerror_report_err(local_err);
3023 error_free(local_err);
3027 if (strstart(filename, "mon:", &p)) {
3029 qemu_opt_set(opts, "mux", "on");
3032 if (strcmp(filename, "null") == 0 ||
3033 strcmp(filename, "pty") == 0 ||
3034 strcmp(filename, "msmouse") == 0 ||
3035 strcmp(filename, "braille") == 0 ||
3036 strcmp(filename, "stdio") == 0) {
3037 qemu_opt_set(opts, "backend", filename);
3040 if (strstart(filename, "vc", &p)) {
3041 qemu_opt_set(opts, "backend", "vc");
3043 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
3045 qemu_opt_set(opts, "width", width);
3046 qemu_opt_set(opts, "height", height);
3047 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
3049 qemu_opt_set(opts, "cols", width);
3050 qemu_opt_set(opts, "rows", height);
3057 if (strcmp(filename, "con:") == 0) {
3058 qemu_opt_set(opts, "backend", "console");
3061 if (strstart(filename, "COM", NULL)) {
3062 qemu_opt_set(opts, "backend", "serial");
3063 qemu_opt_set(opts, "path", filename);
3066 if (strstart(filename, "file:", &p)) {
3067 qemu_opt_set(opts, "backend", "file");
3068 qemu_opt_set(opts, "path", p);
3071 if (strstart(filename, "pipe:", &p)) {
3072 qemu_opt_set(opts, "backend", "pipe");
3073 qemu_opt_set(opts, "path", p);
3076 if (strstart(filename, "tcp:", &p) ||
3077 strstart(filename, "telnet:", &p)) {
3078 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3080 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
3083 qemu_opt_set(opts, "backend", "socket");
3084 qemu_opt_set(opts, "host", host);
3085 qemu_opt_set(opts, "port", port);
3086 if (p[pos] == ',') {
3087 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
3090 if (strstart(filename, "telnet:", &p))
3091 qemu_opt_set(opts, "telnet", "on");
3094 if (strstart(filename, "udp:", &p)) {
3095 qemu_opt_set(opts, "backend", "udp");
3096 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
3098 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
3102 qemu_opt_set(opts, "host", host);
3103 qemu_opt_set(opts, "port", port);
3104 if (p[pos] == '@') {
3106 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
3108 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
3112 qemu_opt_set(opts, "localaddr", host);
3113 qemu_opt_set(opts, "localport", port);
3117 if (strstart(filename, "unix:", &p)) {
3118 qemu_opt_set(opts, "backend", "socket");
3119 if (qemu_opts_do_parse(opts, p, "path") != 0)
3123 if (strstart(filename, "/dev/parport", NULL) ||
3124 strstart(filename, "/dev/ppi", NULL)) {
3125 qemu_opt_set(opts, "backend", "parport");
3126 qemu_opt_set(opts, "path", filename);
3129 if (strstart(filename, "/dev/", NULL)) {
3130 qemu_opt_set(opts, "backend", "tty");
3131 qemu_opt_set(opts, "path", filename);
3136 qemu_opts_del(opts);
3140 static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
3143 const char *path = qemu_opt_get(opts, "path");
3146 error_setg(errp, "chardev: file: no filename given");
3149 backend->file = g_new0(ChardevFile, 1);
3150 backend->file->out = g_strdup(path);
3153 static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
3156 backend->stdio = g_new0(ChardevStdio, 1);
3157 backend->stdio->has_signal = true;
3158 backend->stdio->signal =
3159 qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
3162 static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
3165 const char *device = qemu_opt_get(opts, "path");
3167 if (device == NULL) {
3168 error_setg(errp, "chardev: serial/tty: no device path given");
3171 backend->serial = g_new0(ChardevHostdev, 1);
3172 backend->serial->device = g_strdup(device);
3175 static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
3178 const char *device = qemu_opt_get(opts, "path");
3180 if (device == NULL) {
3181 error_setg(errp, "chardev: parallel: no device path given");
3184 backend->parallel = g_new0(ChardevHostdev, 1);
3185 backend->parallel->device = g_strdup(device);
3188 static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
3191 const char *device = qemu_opt_get(opts, "path");
3193 if (device == NULL) {
3194 error_setg(errp, "chardev: pipe: no device path given");
3197 backend->pipe = g_new0(ChardevHostdev, 1);
3198 backend->pipe->device = g_strdup(device);
3201 static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend,
3206 backend->memory = g_new0(ChardevRingbuf, 1);
3208 val = qemu_opt_get_number(opts, "size", 0);
3210 backend->memory->has_size = true;
3211 backend->memory->size = val;
3215 typedef struct CharDriver {
3218 CharDriverState *(*open)(QemuOpts *opts);
3219 /* new, qapi-based */
3221 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
3224 static GSList *backends;
3226 void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *))
3230 s = g_malloc0(sizeof(*s));
3231 s->name = g_strdup(name);
3234 backends = g_slist_append(backends, s);
3237 void register_char_driver_qapi(const char *name, int kind,
3238 void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
3242 s = g_malloc0(sizeof(*s));
3243 s->name = g_strdup(name);
3247 backends = g_slist_append(backends, s);
3250 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
3251 void (*init)(struct CharDriverState *s),
3255 CharDriverState *chr;
3258 if (qemu_opts_id(opts) == NULL) {
3259 error_setg(errp, "chardev: no id specified");
3263 if (qemu_opt_get(opts, "backend") == NULL) {
3264 error_setg(errp, "chardev: \"%s\" missing backend",
3265 qemu_opts_id(opts));
3268 for (i = backends; i; i = i->next) {
3271 if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) {
3276 error_setg(errp, "chardev: backend \"%s\" not found",
3277 qemu_opt_get(opts, "backend"));
3282 /* using new, qapi init */
3283 ChardevBackend *backend = g_new0(ChardevBackend, 1);
3284 ChardevReturn *ret = NULL;
3285 const char *id = qemu_opts_id(opts);
3286 const char *bid = NULL;
3288 if (qemu_opt_get_bool(opts, "mux", 0)) {
3289 bid = g_strdup_printf("%s-base", id);
3293 backend->kind = cd->kind;
3295 cd->parse(opts, backend, errp);
3296 if (error_is_set(errp)) {
3300 ret = qmp_chardev_add(bid ? bid : id, backend, errp);
3301 if (error_is_set(errp)) {
3306 qapi_free_ChardevBackend(backend);
3307 qapi_free_ChardevReturn(ret);
3308 backend = g_new0(ChardevBackend, 1);
3309 backend->mux = g_new0(ChardevMux, 1);
3310 backend->kind = CHARDEV_BACKEND_KIND_MUX;
3311 backend->mux->chardev = g_strdup(bid);
3312 ret = qmp_chardev_add(id, backend, errp);
3313 if (error_is_set(errp)) {
3318 chr = qemu_chr_find(id);
3321 qapi_free_ChardevBackend(backend);
3322 qapi_free_ChardevReturn(ret);
3326 chr = cd->open(opts);
3328 error_setg(errp, "chardev: opening backend \"%s\" failed",
3329 qemu_opt_get(opts, "backend"));
3334 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
3336 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3338 if (qemu_opt_get_bool(opts, "mux", 0)) {
3339 CharDriverState *base = chr;
3340 int len = strlen(qemu_opts_id(opts)) + 6;
3341 base->label = g_malloc(len);
3342 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
3343 chr = qemu_chr_open_mux(base);
3344 chr->filename = base->filename;
3345 chr->avail_connections = MAX_MUX;
3346 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3348 chr->avail_connections = 1;
3350 chr->label = g_strdup(qemu_opts_id(opts));
3355 qemu_opts_del(opts);
3359 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
3362 CharDriverState *chr;
3366 if (strstart(filename, "chardev:", &p)) {
3367 return qemu_chr_find(p);
3370 opts = qemu_chr_parse_compat(label, filename);
3374 chr = qemu_chr_new_from_opts(opts, init, &err);
3375 if (error_is_set(&err)) {
3376 fprintf(stderr, "%s\n", error_get_pretty(err));
3379 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
3380 qemu_chr_fe_claim_no_fail(chr);
3381 monitor_init(chr, MONITOR_USE_READLINE);
3386 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
3388 if (chr->chr_set_echo) {
3389 chr->chr_set_echo(chr, echo);
3393 void qemu_chr_fe_set_open(struct CharDriverState *chr, int fe_open)
3395 if (chr->fe_open == fe_open) {
3398 chr->fe_open = fe_open;
3399 if (chr->chr_set_fe_open) {
3400 chr->chr_set_fe_open(chr, fe_open);
3404 int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
3405 GIOFunc func, void *user_data)
3410 if (s->chr_add_watch == NULL) {
3414 src = s->chr_add_watch(s, cond);
3415 g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
3416 tag = g_source_attach(src, NULL);
3417 g_source_unref(src);
3422 int qemu_chr_fe_claim(CharDriverState *s)
3424 if (s->avail_connections < 1) {
3427 s->avail_connections--;
3431 void qemu_chr_fe_claim_no_fail(CharDriverState *s)
3433 if (qemu_chr_fe_claim(s) != 0) {
3434 fprintf(stderr, "%s: error chardev \"%s\" already used\n",
3435 __func__, s->label);
3440 void qemu_chr_fe_release(CharDriverState *s)
3442 s->avail_connections++;
3445 void qemu_chr_delete(CharDriverState *chr)
3447 QTAILQ_REMOVE(&chardevs, chr, next);
3448 if (chr->chr_close) {
3449 chr->chr_close(chr);
3451 g_free(chr->filename);
3454 qemu_opts_del(chr->opts);
3459 ChardevInfoList *qmp_query_chardev(Error **errp)
3461 ChardevInfoList *chr_list = NULL;
3462 CharDriverState *chr;
3464 QTAILQ_FOREACH(chr, &chardevs, next) {
3465 ChardevInfoList *info = g_malloc0(sizeof(*info));
3466 info->value = g_malloc0(sizeof(*info->value));
3467 info->value->label = g_strdup(chr->label);
3468 info->value->filename = g_strdup(chr->filename);
3470 info->next = chr_list;
3477 CharDriverState *qemu_chr_find(const char *name)
3479 CharDriverState *chr;
3481 QTAILQ_FOREACH(chr, &chardevs, next) {
3482 if (strcmp(chr->label, name) != 0)
3489 /* Get a character (serial) device interface. */
3490 CharDriverState *qemu_char_get_next_serial(void)
3492 static int next_serial;
3493 CharDriverState *chr;
3495 /* FIXME: This function needs to go away: use chardev properties! */
3497 while (next_serial < MAX_SERIAL_PORTS && serial_hds[next_serial]) {
3498 chr = serial_hds[next_serial++];
3499 qemu_chr_fe_claim_no_fail(chr);
3505 QemuOptsList qemu_chardev_opts = {
3507 .implied_opt_name = "backend",
3508 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
3512 .type = QEMU_OPT_STRING,
3515 .type = QEMU_OPT_STRING,
3518 .type = QEMU_OPT_STRING,
3521 .type = QEMU_OPT_STRING,
3523 .name = "localaddr",
3524 .type = QEMU_OPT_STRING,
3526 .name = "localport",
3527 .type = QEMU_OPT_STRING,
3530 .type = QEMU_OPT_NUMBER,
3533 .type = QEMU_OPT_BOOL,
3536 .type = QEMU_OPT_BOOL,
3539 .type = QEMU_OPT_BOOL,
3542 .type = QEMU_OPT_BOOL,
3545 .type = QEMU_OPT_BOOL,
3548 .type = QEMU_OPT_BOOL,
3551 .type = QEMU_OPT_NUMBER,
3554 .type = QEMU_OPT_NUMBER,
3557 .type = QEMU_OPT_NUMBER,
3560 .type = QEMU_OPT_NUMBER,
3563 .type = QEMU_OPT_BOOL,
3566 .type = QEMU_OPT_BOOL,
3569 .type = QEMU_OPT_STRING,
3572 .type = QEMU_OPT_NUMBER,
3575 .type = QEMU_OPT_SIZE,
3577 { /* end of list */ }
3583 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3588 error_setg(errp, "input file not supported");
3592 out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
3593 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
3594 if (out == INVALID_HANDLE_VALUE) {
3595 error_setg(errp, "open %s failed", file->out);
3598 return qemu_chr_open_win_file(out);
3601 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3604 return qemu_chr_open_win_path(serial->device);
3607 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3610 error_setg(errp, "character device backend type 'parallel' not supported");
3616 static int qmp_chardev_open_file_source(char *src, int flags,
3621 TFR(fd = qemu_open(src, flags, 0666));
3623 error_setg(errp, "open %s: %s", src, strerror(errno));
3628 static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
3630 int flags, in = -1, out = -1;
3632 flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
3633 out = qmp_chardev_open_file_source(file->out, flags, errp);
3634 if (error_is_set(errp)) {
3640 in = qmp_chardev_open_file_source(file->in, flags, errp);
3641 if (error_is_set(errp)) {
3647 return qemu_chr_open_fd(in, out);
3650 static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
3653 #ifdef HAVE_CHARDEV_TTY
3656 fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
3657 if (error_is_set(errp)) {
3660 qemu_set_nonblock(fd);
3661 return qemu_chr_open_tty_fd(fd);
3663 error_setg(errp, "character device backend type 'serial' not supported");
3668 static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
3671 #ifdef HAVE_CHARDEV_PARPORT
3674 fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
3675 if (error_is_set(errp)) {
3678 return qemu_chr_open_pp_fd(fd);
3680 error_setg(errp, "character device backend type 'parallel' not supported");
3687 static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
3690 SocketAddress *addr = sock->addr;
3691 bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
3692 bool is_listen = sock->has_server ? sock->server : true;
3693 bool is_telnet = sock->has_telnet ? sock->telnet : false;
3694 bool is_waitconnect = sock->has_wait ? sock->wait : false;
3698 fd = socket_listen(addr, errp);
3700 fd = socket_connect(addr, errp, NULL, NULL);
3702 if (error_is_set(errp)) {
3705 return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
3706 is_telnet, is_waitconnect, errp);
3709 static CharDriverState *qmp_chardev_open_dgram(ChardevDgram *dgram,
3714 fd = socket_dgram(dgram->remote, dgram->local, errp);
3715 if (error_is_set(errp)) {
3718 return qemu_chr_open_udp_fd(fd);
3721 ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
3724 ChardevReturn *ret = g_new0(ChardevReturn, 1);
3725 CharDriverState *base, *chr = NULL;
3727 chr = qemu_chr_find(id);
3729 error_setg(errp, "Chardev '%s' already exists", id);
3734 switch (backend->kind) {
3735 case CHARDEV_BACKEND_KIND_FILE:
3736 chr = qmp_chardev_open_file(backend->file, errp);
3738 case CHARDEV_BACKEND_KIND_SERIAL:
3739 chr = qmp_chardev_open_serial(backend->serial, errp);
3741 case CHARDEV_BACKEND_KIND_PARALLEL:
3742 chr = qmp_chardev_open_parallel(backend->parallel, errp);
3744 case CHARDEV_BACKEND_KIND_PIPE:
3745 chr = qemu_chr_open_pipe(backend->pipe);
3747 case CHARDEV_BACKEND_KIND_SOCKET:
3748 chr = qmp_chardev_open_socket(backend->socket, errp);
3750 case CHARDEV_BACKEND_KIND_DGRAM:
3751 chr = qmp_chardev_open_dgram(backend->dgram, errp);
3753 #ifdef HAVE_CHARDEV_TTY
3754 case CHARDEV_BACKEND_KIND_PTY:
3755 chr = qemu_chr_open_pty(id, ret);
3758 case CHARDEV_BACKEND_KIND_NULL:
3759 chr = qemu_chr_open_null();
3761 case CHARDEV_BACKEND_KIND_MUX:
3762 base = qemu_chr_find(backend->mux->chardev);
3764 error_setg(errp, "mux: base chardev %s not found",
3765 backend->mux->chardev);
3768 chr = qemu_chr_open_mux(base);
3770 case CHARDEV_BACKEND_KIND_MSMOUSE:
3771 chr = qemu_chr_open_msmouse();
3773 #ifdef CONFIG_BRLAPI
3774 case CHARDEV_BACKEND_KIND_BRAILLE:
3775 chr = chr_baum_init();
3778 case CHARDEV_BACKEND_KIND_STDIO:
3779 chr = qemu_chr_open_stdio(backend->stdio);
3782 case CHARDEV_BACKEND_KIND_CONSOLE:
3783 chr = qemu_chr_open_win_con();
3787 case CHARDEV_BACKEND_KIND_SPICEVMC:
3788 chr = qemu_chr_open_spice_vmc(backend->spicevmc->type);
3790 case CHARDEV_BACKEND_KIND_SPICEPORT:
3791 chr = qemu_chr_open_spice_port(backend->spiceport->fqdn);
3794 case CHARDEV_BACKEND_KIND_VC:
3795 chr = vc_init(backend->vc);
3797 case CHARDEV_BACKEND_KIND_MEMORY:
3798 chr = qemu_chr_open_ringbuf(backend->memory, errp);
3801 error_setg(errp, "unknown chardev backend (%d)", backend->kind);
3805 if (chr == NULL && !error_is_set(errp)) {
3806 error_setg(errp, "Failed to create chardev");
3809 chr->label = g_strdup(id);
3810 chr->avail_connections =
3811 (backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
3812 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
3820 void qmp_chardev_remove(const char *id, Error **errp)
3822 CharDriverState *chr;
3824 chr = qemu_chr_find(id);
3826 error_setg(errp, "Chardev '%s' not found", id);
3829 if (chr->chr_can_read || chr->chr_read ||
3830 chr->chr_event || chr->handler_opaque) {
3831 error_setg(errp, "Chardev '%s' is busy", id);
3834 qemu_chr_delete(chr);
3837 static void register_types(void)
3839 register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
3840 register_char_driver("socket", qemu_chr_open_socket);
3841 register_char_driver("udp", qemu_chr_open_udp);
3842 register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
3843 qemu_chr_parse_ringbuf);
3844 register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
3845 qemu_chr_parse_file_out);
3846 register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
3847 qemu_chr_parse_stdio);
3848 register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
3849 qemu_chr_parse_serial);
3850 register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
3851 qemu_chr_parse_serial);
3852 register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
3853 qemu_chr_parse_parallel);
3854 register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
3855 qemu_chr_parse_parallel);
3856 register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL);
3857 register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
3858 register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
3859 qemu_chr_parse_pipe);
3862 type_init(register_types);