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"
29 #include "qemu-timer.h"
30 #include "qemu-char.h"
33 #include "hw/msmouse.h"
34 #include "qmp-commands.h"
44 #include <sys/times.h>
48 #include <sys/ioctl.h>
49 #include <sys/resource.h>
50 #include <sys/socket.h>
51 #include <netinet/in.h>
53 #include <arpa/inet.h>
56 #include <sys/select.h>
59 #if defined(__GLIBC__)
61 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
66 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
67 #include <dev/ppbus/ppi.h>
68 #include <dev/ppbus/ppbconf.h>
69 #elif defined(__DragonFly__)
70 #include <dev/misc/ppi/ppi.h>
71 #include <bus/ppbus/ppbconf.h>
77 #include <linux/ppdev.h>
78 #include <linux/parport.h>
82 #include <sys/ethernet.h>
83 #include <sys/sockio.h>
84 #include <netinet/arp.h>
85 #include <netinet/in.h>
86 #include <netinet/in_systm.h>
87 #include <netinet/ip.h>
88 #include <netinet/ip_icmp.h> // must come after ip.h
89 #include <netinet/udp.h>
90 #include <netinet/tcp.h>
98 #include "qemu_socket.h"
99 #include "ui/qemu-spice.h"
101 #define READ_BUF_LEN 4096
103 /***********************************************************/
104 /* character device */
106 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
107 QTAILQ_HEAD_INITIALIZER(chardevs);
109 void qemu_chr_be_event(CharDriverState *s, int event)
111 /* Keep track if the char device is open */
113 case CHR_EVENT_OPENED:
116 case CHR_EVENT_CLOSED:
123 s->chr_event(s->handler_opaque, event);
126 static void qemu_chr_generic_open_bh(void *opaque)
128 CharDriverState *s = opaque;
129 qemu_chr_be_event(s, CHR_EVENT_OPENED);
130 qemu_bh_delete(s->bh);
134 void qemu_chr_generic_open(CharDriverState *s)
137 s->bh = qemu_bh_new(qemu_chr_generic_open_bh, s);
138 qemu_bh_schedule(s->bh);
142 int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
144 return s->chr_write(s, buf, len);
147 int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
151 return s->chr_ioctl(s, cmd, arg);
154 int qemu_chr_be_can_write(CharDriverState *s)
156 if (!s->chr_can_read)
158 return s->chr_can_read(s->handler_opaque);
161 void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
164 s->chr_read(s->handler_opaque, buf, len);
168 int qemu_chr_fe_get_msgfd(CharDriverState *s)
170 return s->get_msgfd ? s->get_msgfd(s) : -1;
173 int qemu_chr_add_client(CharDriverState *s, int fd)
175 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
178 void qemu_chr_accept_input(CharDriverState *s)
180 if (s->chr_accept_input)
181 s->chr_accept_input(s);
185 void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
187 char buf[READ_BUF_LEN];
190 vsnprintf(buf, sizeof(buf), fmt, ap);
191 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
195 void qemu_chr_add_handlers(CharDriverState *s,
196 IOCanReadHandler *fd_can_read,
197 IOReadHandler *fd_read,
198 IOEventHandler *fd_event,
201 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
202 /* chr driver being released. */
203 ++s->avail_connections;
205 s->chr_can_read = fd_can_read;
206 s->chr_read = fd_read;
207 s->chr_event = fd_event;
208 s->handler_opaque = opaque;
209 if (s->chr_update_read_handler)
210 s->chr_update_read_handler(s);
212 /* We're connecting to an already opened device, so let's make sure we
213 also get the open event */
215 qemu_chr_generic_open(s);
219 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
224 static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
226 CharDriverState *chr;
228 chr = g_malloc0(sizeof(CharDriverState));
229 chr->chr_write = null_chr_write;
233 /* MUX driver for serial I/O splitting */
235 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
236 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
238 IOCanReadHandler *chr_can_read[MAX_MUX];
239 IOReadHandler *chr_read[MAX_MUX];
240 IOEventHandler *chr_event[MAX_MUX];
241 void *ext_opaque[MAX_MUX];
242 CharDriverState *drv;
247 /* Intermediate input buffer allows to catch escape sequences even if the
248 currently active device is not accepting any input - but only until it
250 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
255 int64_t timestamps_start;
259 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
261 MuxDriver *d = chr->opaque;
263 if (!d->timestamps) {
264 ret = d->drv->chr_write(d->drv, buf, len);
269 for (i = 0; i < len; i++) {
275 ti = qemu_get_clock_ms(rt_clock);
276 if (d->timestamps_start == -1)
277 d->timestamps_start = ti;
278 ti -= d->timestamps_start;
280 snprintf(buf1, sizeof(buf1),
281 "[%02d:%02d:%02d.%03d] ",
286 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
289 ret += d->drv->chr_write(d->drv, buf+i, 1);
290 if (buf[i] == '\n') {
298 static const char * const mux_help[] = {
299 "% h print this help\n\r",
300 "% x exit emulator\n\r",
301 "% s save disk data back to file (if -snapshot)\n\r",
302 "% t toggle console timestamps\n\r"
303 "% b send break (magic sysrq)\n\r",
304 "% c switch between console and monitor\n\r",
309 int term_escape_char = 0x01; /* ctrl-a is used for escape */
310 static void mux_print_help(CharDriverState *chr)
313 char ebuf[15] = "Escape-Char";
314 char cbuf[50] = "\n\r";
316 if (term_escape_char > 0 && term_escape_char < 26) {
317 snprintf(cbuf, sizeof(cbuf), "\n\r");
318 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
320 snprintf(cbuf, sizeof(cbuf),
321 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
324 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
325 for (i = 0; mux_help[i] != NULL; i++) {
326 for (j=0; mux_help[i][j] != '\0'; j++) {
327 if (mux_help[i][j] == '%')
328 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
330 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
335 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
337 if (d->chr_event[mux_nr])
338 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
341 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
343 if (d->term_got_escape) {
344 d->term_got_escape = 0;
345 if (ch == term_escape_char)
354 const char *term = "QEMU: Terminated\n\r";
355 chr->chr_write(chr,(uint8_t *)term,strlen(term));
363 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
366 /* Switch to the next registered device */
367 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
369 if (d->focus >= d->mux_cnt)
371 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
374 d->timestamps = !d->timestamps;
375 d->timestamps_start = -1;
379 } else if (ch == term_escape_char) {
380 d->term_got_escape = 1;
388 static void mux_chr_accept_input(CharDriverState *chr)
390 MuxDriver *d = chr->opaque;
393 while (d->prod[m] != d->cons[m] &&
394 d->chr_can_read[m] &&
395 d->chr_can_read[m](d->ext_opaque[m])) {
396 d->chr_read[m](d->ext_opaque[m],
397 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
401 static int mux_chr_can_read(void *opaque)
403 CharDriverState *chr = opaque;
404 MuxDriver *d = chr->opaque;
407 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
409 if (d->chr_can_read[m])
410 return d->chr_can_read[m](d->ext_opaque[m]);
414 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
416 CharDriverState *chr = opaque;
417 MuxDriver *d = chr->opaque;
421 mux_chr_accept_input (opaque);
423 for(i = 0; i < size; i++)
424 if (mux_proc_byte(chr, d, buf[i])) {
425 if (d->prod[m] == d->cons[m] &&
426 d->chr_can_read[m] &&
427 d->chr_can_read[m](d->ext_opaque[m]))
428 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
430 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
434 static void mux_chr_event(void *opaque, int event)
436 CharDriverState *chr = opaque;
437 MuxDriver *d = chr->opaque;
440 /* Send the event to all registered listeners */
441 for (i = 0; i < d->mux_cnt; i++)
442 mux_chr_send_event(d, i, event);
445 static void mux_chr_update_read_handler(CharDriverState *chr)
447 MuxDriver *d = chr->opaque;
449 if (d->mux_cnt >= MAX_MUX) {
450 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
453 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
454 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
455 d->chr_read[d->mux_cnt] = chr->chr_read;
456 d->chr_event[d->mux_cnt] = chr->chr_event;
457 /* Fix up the real driver with mux routines */
458 if (d->mux_cnt == 0) {
459 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
462 if (d->focus != -1) {
463 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
465 d->focus = d->mux_cnt;
467 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
470 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
472 CharDriverState *chr;
475 chr = g_malloc0(sizeof(CharDriverState));
476 d = g_malloc0(sizeof(MuxDriver));
481 chr->chr_write = mux_chr_write;
482 chr->chr_update_read_handler = mux_chr_update_read_handler;
483 chr->chr_accept_input = mux_chr_accept_input;
484 /* Frontend guest-open / -close notification is not support with muxes */
485 chr->chr_guest_open = NULL;
486 chr->chr_guest_close = NULL;
488 /* Muxes are always open on creation */
489 qemu_chr_generic_open(chr);
496 int send_all(int fd, const void *buf, int len1)
502 ret = send(fd, buf, len, 0);
504 errno = WSAGetLastError();
505 if (errno != WSAEWOULDBLOCK) {
508 } else if (ret == 0) {
520 int send_all(int fd, const void *_buf, int len1)
523 const uint8_t *buf = _buf;
527 ret = write(fd, buf, len);
529 if (errno != EINTR && errno != EAGAIN)
531 } else if (ret == 0) {
542 #define STDIO_MAX_CLIENTS 1
543 static int stdio_nb_clients;
553 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
555 FDCharDriver *s = chr->opaque;
556 return send_all(s->fd_out, buf, len);
559 static int fd_chr_read_poll(void *opaque)
561 CharDriverState *chr = opaque;
562 FDCharDriver *s = chr->opaque;
564 s->max_size = qemu_chr_be_can_write(chr);
568 static void fd_chr_read(void *opaque)
570 CharDriverState *chr = opaque;
571 FDCharDriver *s = chr->opaque;
573 uint8_t buf[READ_BUF_LEN];
576 if (len > s->max_size)
580 size = read(s->fd_in, buf, len);
582 /* FD has been closed. Remove it from the active list. */
583 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
584 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
588 qemu_chr_be_write(chr, buf, size);
592 static void fd_chr_update_read_handler(CharDriverState *chr)
594 FDCharDriver *s = chr->opaque;
597 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
599 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
600 fd_chr_read, NULL, chr);
605 static void fd_chr_close(struct CharDriverState *chr)
607 FDCharDriver *s = chr->opaque;
610 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
612 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
617 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
620 /* open a character device to a unix fd */
621 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
623 CharDriverState *chr;
626 chr = g_malloc0(sizeof(CharDriverState));
627 s = g_malloc0(sizeof(FDCharDriver));
631 chr->chr_write = fd_chr_write;
632 chr->chr_update_read_handler = fd_chr_update_read_handler;
633 chr->chr_close = fd_chr_close;
635 qemu_chr_generic_open(chr);
640 static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
644 TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
645 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
649 return qemu_chr_open_fd(-1, fd_out);
652 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
655 char filename_in[256], filename_out[256];
656 const char *filename = qemu_opt_get(opts, "path");
658 if (filename == NULL) {
659 fprintf(stderr, "chardev: pipe: no filename given\n");
663 snprintf(filename_in, 256, "%s.in", filename);
664 snprintf(filename_out, 256, "%s.out", filename);
665 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
666 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
667 if (fd_in < 0 || fd_out < 0) {
672 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
677 return qemu_chr_open_fd(fd_in, fd_out);
681 /* for STDIO, we handle the case where several clients use it
684 #define TERM_FIFO_MAX_SIZE 1
686 static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
687 static int term_fifo_size;
689 static int stdio_read_poll(void *opaque)
691 CharDriverState *chr = opaque;
693 /* try to flush the queue if needed */
694 if (term_fifo_size != 0 && qemu_chr_be_can_write(chr) > 0) {
695 qemu_chr_be_write(chr, term_fifo, 1);
698 /* see if we can absorb more chars */
699 if (term_fifo_size == 0)
705 static void stdio_read(void *opaque)
709 CharDriverState *chr = opaque;
711 size = read(0, buf, 1);
713 /* stdin has been closed. Remove it from the active list. */
714 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
715 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
719 if (qemu_chr_be_can_write(chr) > 0) {
720 qemu_chr_be_write(chr, buf, 1);
721 } else if (term_fifo_size == 0) {
722 term_fifo[term_fifo_size++] = buf[0];
727 /* init terminal so that we can grab keys */
728 static struct termios oldtty;
729 static int old_fd0_flags;
730 static bool stdio_allow_signal;
732 static void term_exit(void)
734 tcsetattr (0, TCSANOW, &oldtty);
735 fcntl(0, F_SETFL, old_fd0_flags);
738 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
744 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
745 |INLCR|IGNCR|ICRNL|IXON);
746 tty.c_oflag |= OPOST;
747 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
748 tty.c_cflag &= ~(CSIZE|PARENB);
753 /* if graphical mode, we allow Ctrl-C handling */
754 if (!stdio_allow_signal)
755 tty.c_lflag &= ~ISIG;
757 tcsetattr (0, TCSANOW, &tty);
760 static void qemu_chr_close_stdio(struct CharDriverState *chr)
764 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
768 static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
770 CharDriverState *chr;
772 if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
775 if (stdio_nb_clients == 0) {
776 old_fd0_flags = fcntl(0, F_GETFL);
777 tcgetattr (0, &oldtty);
778 fcntl(0, F_SETFL, O_NONBLOCK);
782 chr = qemu_chr_open_fd(0, 1);
783 chr->chr_close = qemu_chr_close_stdio;
784 chr->chr_set_echo = qemu_chr_set_echo_stdio;
785 qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
787 stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
788 display_type != DT_NOGRAPHIC);
789 qemu_chr_fe_set_echo(chr, false);
795 /* Once Solaris has openpty(), this is going to be removed. */
796 static int openpty(int *amaster, int *aslave, char *name,
797 struct termios *termp, struct winsize *winp)
800 int mfd = -1, sfd = -1;
802 *amaster = *aslave = -1;
804 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
808 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
811 if ((slave = ptsname(mfd)) == NULL)
814 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
817 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
818 (termp != NULL && tcgetattr(sfd, termp) < 0))
826 ioctl(sfd, TIOCSWINSZ, winp);
837 static void cfmakeraw (struct termios *termios_p)
839 termios_p->c_iflag &=
840 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
841 termios_p->c_oflag &= ~OPOST;
842 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
843 termios_p->c_cflag &= ~(CSIZE|PARENB);
844 termios_p->c_cflag |= CS8;
846 termios_p->c_cc[VMIN] = 0;
847 termios_p->c_cc[VTIME] = 0;
851 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
852 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
853 || defined(__GLIBC__)
863 static void pty_chr_update_read_handler(CharDriverState *chr);
864 static void pty_chr_state(CharDriverState *chr, int connected);
866 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
868 PtyCharDriver *s = chr->opaque;
871 /* guest sends data, check for (re-)connect */
872 pty_chr_update_read_handler(chr);
875 return send_all(s->fd, buf, len);
878 static int pty_chr_read_poll(void *opaque)
880 CharDriverState *chr = opaque;
881 PtyCharDriver *s = chr->opaque;
883 s->read_bytes = qemu_chr_be_can_write(chr);
884 return s->read_bytes;
887 static void pty_chr_read(void *opaque)
889 CharDriverState *chr = opaque;
890 PtyCharDriver *s = chr->opaque;
892 uint8_t buf[READ_BUF_LEN];
895 if (len > s->read_bytes)
899 size = read(s->fd, buf, len);
900 if ((size == -1 && errno == EIO) ||
902 pty_chr_state(chr, 0);
906 pty_chr_state(chr, 1);
907 qemu_chr_be_write(chr, buf, size);
911 static void pty_chr_update_read_handler(CharDriverState *chr)
913 PtyCharDriver *s = chr->opaque;
915 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
916 pty_chr_read, NULL, chr);
919 * Short timeout here: just need wait long enougth that qemu makes
920 * it through the poll loop once. When reconnected we want a
921 * short timeout so we notice it almost instantly. Otherwise
922 * read() gives us -EIO instantly, making pty_chr_state() reset the
923 * timeout to the normal (much longer) poll interval before the
926 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
929 static void pty_chr_state(CharDriverState *chr, int connected)
931 PtyCharDriver *s = chr->opaque;
934 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
937 /* (re-)connect poll interval for idle guests: once per second.
938 * We check more frequently in case the guests sends data to
939 * the virtual device linked to our pty. */
940 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
943 qemu_chr_generic_open(chr);
948 static void pty_chr_timer(void *opaque)
950 struct CharDriverState *chr = opaque;
951 PtyCharDriver *s = chr->opaque;
956 /* If we arrive here without polling being cleared due
957 * read returning -EIO, then we are (re-)connected */
958 pty_chr_state(chr, 1);
963 pty_chr_update_read_handler(chr);
966 static void pty_chr_close(struct CharDriverState *chr)
968 PtyCharDriver *s = chr->opaque;
970 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
972 qemu_del_timer(s->timer);
973 qemu_free_timer(s->timer);
975 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
978 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
980 CharDriverState *chr;
983 int master_fd, slave_fd, len;
984 #if defined(__OpenBSD__) || defined(__DragonFly__)
985 char pty_name[PATH_MAX];
986 #define q_ptsname(x) pty_name
988 char *pty_name = NULL;
989 #define q_ptsname(x) ptsname(x)
992 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
996 /* Set raw attributes on the pty. */
997 tcgetattr(slave_fd, &tty);
999 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1002 chr = g_malloc0(sizeof(CharDriverState));
1004 len = strlen(q_ptsname(master_fd)) + 5;
1005 chr->filename = g_malloc(len);
1006 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1007 qemu_opt_set(opts, "path", q_ptsname(master_fd));
1008 fprintf(stderr, "char device redirected to %s\n", q_ptsname(master_fd));
1010 s = g_malloc0(sizeof(PtyCharDriver));
1012 chr->chr_write = pty_chr_write;
1013 chr->chr_update_read_handler = pty_chr_update_read_handler;
1014 chr->chr_close = pty_chr_close;
1017 s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
1022 static void tty_serial_init(int fd, int speed,
1023 int parity, int data_bits, int stop_bits)
1029 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1030 speed, parity, data_bits, stop_bits);
1032 tcgetattr (fd, &tty);
1034 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1035 speed = speed * 10 / 11;
1052 /* Non-Posix values follow. They may be unsupported on some systems. */
1054 check_speed(115200);
1056 check_speed(230400);
1059 check_speed(460800);
1062 check_speed(500000);
1065 check_speed(576000);
1068 check_speed(921600);
1071 check_speed(1000000);
1074 check_speed(1152000);
1077 check_speed(1500000);
1080 check_speed(2000000);
1083 check_speed(2500000);
1086 check_speed(3000000);
1089 check_speed(3500000);
1092 check_speed(4000000);
1097 cfsetispeed(&tty, spd);
1098 cfsetospeed(&tty, spd);
1100 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1101 |INLCR|IGNCR|ICRNL|IXON);
1102 tty.c_oflag |= OPOST;
1103 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1104 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1125 tty.c_cflag |= PARENB;
1128 tty.c_cflag |= PARENB | PARODD;
1132 tty.c_cflag |= CSTOPB;
1134 tcsetattr (fd, TCSANOW, &tty);
1137 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1139 FDCharDriver *s = chr->opaque;
1142 case CHR_IOCTL_SERIAL_SET_PARAMS:
1144 QEMUSerialSetParams *ssp = arg;
1145 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1146 ssp->data_bits, ssp->stop_bits);
1149 case CHR_IOCTL_SERIAL_SET_BREAK:
1151 int enable = *(int *)arg;
1153 tcsendbreak(s->fd_in, 1);
1156 case CHR_IOCTL_SERIAL_GET_TIOCM:
1159 int *targ = (int *)arg;
1160 ioctl(s->fd_in, TIOCMGET, &sarg);
1162 if (sarg & TIOCM_CTS)
1163 *targ |= CHR_TIOCM_CTS;
1164 if (sarg & TIOCM_CAR)
1165 *targ |= CHR_TIOCM_CAR;
1166 if (sarg & TIOCM_DSR)
1167 *targ |= CHR_TIOCM_DSR;
1168 if (sarg & TIOCM_RI)
1169 *targ |= CHR_TIOCM_RI;
1170 if (sarg & TIOCM_DTR)
1171 *targ |= CHR_TIOCM_DTR;
1172 if (sarg & TIOCM_RTS)
1173 *targ |= CHR_TIOCM_RTS;
1176 case CHR_IOCTL_SERIAL_SET_TIOCM:
1178 int sarg = *(int *)arg;
1180 ioctl(s->fd_in, TIOCMGET, &targ);
1181 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1182 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1183 if (sarg & CHR_TIOCM_CTS)
1185 if (sarg & CHR_TIOCM_CAR)
1187 if (sarg & CHR_TIOCM_DSR)
1189 if (sarg & CHR_TIOCM_RI)
1191 if (sarg & CHR_TIOCM_DTR)
1193 if (sarg & CHR_TIOCM_RTS)
1195 ioctl(s->fd_in, TIOCMSET, &targ);
1204 static void qemu_chr_close_tty(CharDriverState *chr)
1206 FDCharDriver *s = chr->opaque;
1220 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1222 const char *filename = qemu_opt_get(opts, "path");
1223 CharDriverState *chr;
1226 TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
1230 tty_serial_init(fd, 115200, 'N', 8, 1);
1231 chr = qemu_chr_open_fd(fd, fd);
1232 chr->chr_ioctl = tty_serial_ioctl;
1233 chr->chr_close = qemu_chr_close_tty;
1236 #else /* ! __linux__ && ! __sun__ */
1237 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
1241 #endif /* __linux__ || __sun__ */
1243 #if defined(__linux__)
1247 } ParallelCharDriver;
1249 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1251 if (s->mode != mode) {
1253 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1260 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1262 ParallelCharDriver *drv = chr->opaque;
1267 case CHR_IOCTL_PP_READ_DATA:
1268 if (ioctl(fd, PPRDATA, &b) < 0)
1270 *(uint8_t *)arg = b;
1272 case CHR_IOCTL_PP_WRITE_DATA:
1273 b = *(uint8_t *)arg;
1274 if (ioctl(fd, PPWDATA, &b) < 0)
1277 case CHR_IOCTL_PP_READ_CONTROL:
1278 if (ioctl(fd, PPRCONTROL, &b) < 0)
1280 /* Linux gives only the lowest bits, and no way to know data
1281 direction! For better compatibility set the fixed upper
1283 *(uint8_t *)arg = b | 0xc0;
1285 case CHR_IOCTL_PP_WRITE_CONTROL:
1286 b = *(uint8_t *)arg;
1287 if (ioctl(fd, PPWCONTROL, &b) < 0)
1290 case CHR_IOCTL_PP_READ_STATUS:
1291 if (ioctl(fd, PPRSTATUS, &b) < 0)
1293 *(uint8_t *)arg = b;
1295 case CHR_IOCTL_PP_DATA_DIR:
1296 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1299 case CHR_IOCTL_PP_EPP_READ_ADDR:
1300 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1301 struct ParallelIOArg *parg = arg;
1302 int n = read(fd, parg->buffer, parg->count);
1303 if (n != parg->count) {
1308 case CHR_IOCTL_PP_EPP_READ:
1309 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1310 struct ParallelIOArg *parg = arg;
1311 int n = read(fd, parg->buffer, parg->count);
1312 if (n != parg->count) {
1317 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1318 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1319 struct ParallelIOArg *parg = arg;
1320 int n = write(fd, parg->buffer, parg->count);
1321 if (n != parg->count) {
1326 case CHR_IOCTL_PP_EPP_WRITE:
1327 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1328 struct ParallelIOArg *parg = arg;
1329 int n = write(fd, parg->buffer, parg->count);
1330 if (n != parg->count) {
1341 static void pp_close(CharDriverState *chr)
1343 ParallelCharDriver *drv = chr->opaque;
1346 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1347 ioctl(fd, PPRELEASE);
1350 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1353 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1355 const char *filename = qemu_opt_get(opts, "path");
1356 CharDriverState *chr;
1357 ParallelCharDriver *drv;
1360 TFR(fd = qemu_open(filename, O_RDWR));
1365 if (ioctl(fd, PPCLAIM) < 0) {
1370 drv = g_malloc0(sizeof(ParallelCharDriver));
1372 drv->mode = IEEE1284_MODE_COMPAT;
1374 chr = g_malloc0(sizeof(CharDriverState));
1375 chr->chr_write = null_chr_write;
1376 chr->chr_ioctl = pp_ioctl;
1377 chr->chr_close = pp_close;
1380 qemu_chr_generic_open(chr);
1384 #endif /* __linux__ */
1386 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1387 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1389 int fd = (int)(intptr_t)chr->opaque;
1393 case CHR_IOCTL_PP_READ_DATA:
1394 if (ioctl(fd, PPIGDATA, &b) < 0)
1396 *(uint8_t *)arg = b;
1398 case CHR_IOCTL_PP_WRITE_DATA:
1399 b = *(uint8_t *)arg;
1400 if (ioctl(fd, PPISDATA, &b) < 0)
1403 case CHR_IOCTL_PP_READ_CONTROL:
1404 if (ioctl(fd, PPIGCTRL, &b) < 0)
1406 *(uint8_t *)arg = b;
1408 case CHR_IOCTL_PP_WRITE_CONTROL:
1409 b = *(uint8_t *)arg;
1410 if (ioctl(fd, PPISCTRL, &b) < 0)
1413 case CHR_IOCTL_PP_READ_STATUS:
1414 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1416 *(uint8_t *)arg = b;
1424 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1426 const char *filename = qemu_opt_get(opts, "path");
1427 CharDriverState *chr;
1430 fd = qemu_open(filename, O_RDWR);
1435 chr = g_malloc0(sizeof(CharDriverState));
1436 chr->opaque = (void *)(intptr_t)fd;
1437 chr->chr_write = null_chr_write;
1438 chr->chr_ioctl = pp_ioctl;
1445 static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];
1449 HANDLE hcom, hrecv, hsend;
1450 OVERLAPPED orecv, osend;
1457 HANDLE hInputReadyEvent;
1458 HANDLE hInputDoneEvent;
1459 HANDLE hInputThread;
1460 uint8_t win_stdio_buf;
1461 } WinStdioCharState;
1463 #define NSENDBUF 2048
1464 #define NRECVBUF 2048
1465 #define MAXCONNECT 1
1466 #define NTIMEOUT 5000
1468 static int win_chr_poll(void *opaque);
1469 static int win_chr_pipe_poll(void *opaque);
1471 static void win_chr_close(CharDriverState *chr)
1473 WinCharState *s = chr->opaque;
1476 CloseHandle(s->hsend);
1480 CloseHandle(s->hrecv);
1484 CloseHandle(s->hcom);
1488 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1490 qemu_del_polling_cb(win_chr_poll, chr);
1492 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1495 static int win_chr_init(CharDriverState *chr, const char *filename)
1497 WinCharState *s = chr->opaque;
1499 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1504 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1506 fprintf(stderr, "Failed CreateEvent\n");
1509 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1511 fprintf(stderr, "Failed CreateEvent\n");
1515 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1516 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1517 if (s->hcom == INVALID_HANDLE_VALUE) {
1518 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1523 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1524 fprintf(stderr, "Failed SetupComm\n");
1528 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1529 size = sizeof(COMMCONFIG);
1530 GetDefaultCommConfig(filename, &comcfg, &size);
1531 comcfg.dcb.DCBlength = sizeof(DCB);
1532 CommConfigDialog(filename, NULL, &comcfg);
1534 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1535 fprintf(stderr, "Failed SetCommState\n");
1539 if (!SetCommMask(s->hcom, EV_ERR)) {
1540 fprintf(stderr, "Failed SetCommMask\n");
1544 cto.ReadIntervalTimeout = MAXDWORD;
1545 if (!SetCommTimeouts(s->hcom, &cto)) {
1546 fprintf(stderr, "Failed SetCommTimeouts\n");
1550 if (!ClearCommError(s->hcom, &err, &comstat)) {
1551 fprintf(stderr, "Failed ClearCommError\n");
1554 qemu_add_polling_cb(win_chr_poll, chr);
1562 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1564 WinCharState *s = chr->opaque;
1565 DWORD len, ret, size, err;
1568 ZeroMemory(&s->osend, sizeof(s->osend));
1569 s->osend.hEvent = s->hsend;
1572 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1574 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1576 err = GetLastError();
1577 if (err == ERROR_IO_PENDING) {
1578 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1596 static int win_chr_read_poll(CharDriverState *chr)
1598 WinCharState *s = chr->opaque;
1600 s->max_size = qemu_chr_be_can_write(chr);
1604 static void win_chr_readfile(CharDriverState *chr)
1606 WinCharState *s = chr->opaque;
1608 uint8_t buf[READ_BUF_LEN];
1611 ZeroMemory(&s->orecv, sizeof(s->orecv));
1612 s->orecv.hEvent = s->hrecv;
1613 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1615 err = GetLastError();
1616 if (err == ERROR_IO_PENDING) {
1617 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1622 qemu_chr_be_write(chr, buf, size);
1626 static void win_chr_read(CharDriverState *chr)
1628 WinCharState *s = chr->opaque;
1630 if (s->len > s->max_size)
1631 s->len = s->max_size;
1635 win_chr_readfile(chr);
1638 static int win_chr_poll(void *opaque)
1640 CharDriverState *chr = opaque;
1641 WinCharState *s = chr->opaque;
1645 ClearCommError(s->hcom, &comerr, &status);
1646 if (status.cbInQue > 0) {
1647 s->len = status.cbInQue;
1648 win_chr_read_poll(chr);
1655 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1657 const char *filename = qemu_opt_get(opts, "path");
1658 CharDriverState *chr;
1661 chr = g_malloc0(sizeof(CharDriverState));
1662 s = g_malloc0(sizeof(WinCharState));
1664 chr->chr_write = win_chr_write;
1665 chr->chr_close = win_chr_close;
1667 if (win_chr_init(chr, filename) < 0) {
1672 qemu_chr_generic_open(chr);
1676 static int win_chr_pipe_poll(void *opaque)
1678 CharDriverState *chr = opaque;
1679 WinCharState *s = chr->opaque;
1682 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1685 win_chr_read_poll(chr);
1692 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1694 WinCharState *s = chr->opaque;
1702 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1704 fprintf(stderr, "Failed CreateEvent\n");
1707 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1709 fprintf(stderr, "Failed CreateEvent\n");
1713 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1714 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1715 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1717 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1718 if (s->hcom == INVALID_HANDLE_VALUE) {
1719 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1724 ZeroMemory(&ov, sizeof(ov));
1725 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1726 ret = ConnectNamedPipe(s->hcom, &ov);
1728 fprintf(stderr, "Failed ConnectNamedPipe\n");
1732 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1734 fprintf(stderr, "Failed GetOverlappedResult\n");
1736 CloseHandle(ov.hEvent);
1743 CloseHandle(ov.hEvent);
1746 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1755 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1757 const char *filename = qemu_opt_get(opts, "path");
1758 CharDriverState *chr;
1761 chr = g_malloc0(sizeof(CharDriverState));
1762 s = g_malloc0(sizeof(WinCharState));
1764 chr->chr_write = win_chr_write;
1765 chr->chr_close = win_chr_close;
1767 if (win_chr_pipe_init(chr, filename) < 0) {
1772 qemu_chr_generic_open(chr);
1776 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1778 CharDriverState *chr;
1781 chr = g_malloc0(sizeof(CharDriverState));
1782 s = g_malloc0(sizeof(WinCharState));
1785 chr->chr_write = win_chr_write;
1786 qemu_chr_generic_open(chr);
1790 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1792 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1795 static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
1797 const char *file_out = qemu_opt_get(opts, "path");
1800 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1801 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1802 if (fd_out == INVALID_HANDLE_VALUE) {
1806 return qemu_chr_open_win_file(fd_out);
1809 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1811 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1818 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1828 static void win_stdio_wait_func(void *opaque)
1830 CharDriverState *chr = opaque;
1831 WinStdioCharState *stdio = chr->opaque;
1832 INPUT_RECORD buf[4];
1837 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1841 /* Avoid error storm */
1842 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1846 for (i = 0; i < dwSize; i++) {
1847 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
1849 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
1851 if (kev->uChar.AsciiChar != 0) {
1852 for (j = 0; j < kev->wRepeatCount; j++) {
1853 if (qemu_chr_be_can_write(chr)) {
1854 uint8_t c = kev->uChar.AsciiChar;
1855 qemu_chr_be_write(chr, &c, 1);
1863 static DWORD WINAPI win_stdio_thread(LPVOID param)
1865 CharDriverState *chr = param;
1866 WinStdioCharState *stdio = chr->opaque;
1872 /* Wait for one byte */
1873 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
1875 /* Exit in case of error, continue if nothing read */
1883 /* Some terminal emulator returns \r\n for Enter, just pass \n */
1884 if (stdio->win_stdio_buf == '\r') {
1888 /* Signal the main thread and wait until the byte was eaten */
1889 if (!SetEvent(stdio->hInputReadyEvent)) {
1892 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
1898 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
1902 static void win_stdio_thread_wait_func(void *opaque)
1904 CharDriverState *chr = opaque;
1905 WinStdioCharState *stdio = chr->opaque;
1907 if (qemu_chr_be_can_write(chr)) {
1908 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
1911 SetEvent(stdio->hInputDoneEvent);
1914 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
1916 WinStdioCharState *stdio = chr->opaque;
1919 GetConsoleMode(stdio->hStdIn, &dwMode);
1922 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
1924 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
1928 static void win_stdio_close(CharDriverState *chr)
1930 WinStdioCharState *stdio = chr->opaque;
1932 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
1933 CloseHandle(stdio->hInputReadyEvent);
1935 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
1936 CloseHandle(stdio->hInputDoneEvent);
1938 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
1939 TerminateThread(stdio->hInputThread, 0);
1942 g_free(chr->opaque);
1947 static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
1949 CharDriverState *chr;
1950 WinStdioCharState *stdio;
1954 if (stdio_nb_clients >= STDIO_MAX_CLIENTS
1955 || ((display_type != DT_NOGRAPHIC) && (stdio_nb_clients != 0))) {
1959 chr = g_malloc0(sizeof(CharDriverState));
1960 stdio = g_malloc0(sizeof(WinStdioCharState));
1962 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
1963 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
1964 fprintf(stderr, "cannot open stdio: invalid handle\n");
1968 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
1970 chr->opaque = stdio;
1971 chr->chr_write = win_stdio_write;
1972 chr->chr_close = win_stdio_close;
1974 if (stdio_nb_clients == 0) {
1976 if (qemu_add_wait_object(stdio->hStdIn,
1977 win_stdio_wait_func, chr)) {
1978 fprintf(stderr, "qemu_add_wait_object: failed\n");
1983 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
1984 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
1985 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
1988 if (stdio->hInputThread == INVALID_HANDLE_VALUE
1989 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
1990 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
1991 fprintf(stderr, "cannot create stdio thread or event\n");
1994 if (qemu_add_wait_object(stdio->hInputReadyEvent,
1995 win_stdio_thread_wait_func, chr)) {
1996 fprintf(stderr, "qemu_add_wait_object: failed\n");
2001 dwMode |= ENABLE_LINE_INPUT;
2003 stdio_clients[stdio_nb_clients++] = chr;
2004 if (stdio_nb_clients == 1 && is_console) {
2005 /* set the terminal in raw mode */
2006 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2007 dwMode |= ENABLE_PROCESSED_INPUT;
2010 SetConsoleMode(stdio->hStdIn, dwMode);
2012 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2013 qemu_chr_fe_set_echo(chr, false);
2017 #endif /* !_WIN32 */
2019 /***********************************************************/
2020 /* UDP Net console */
2024 uint8_t buf[READ_BUF_LEN];
2030 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2032 NetCharDriver *s = chr->opaque;
2034 return send(s->fd, (const void *)buf, len, 0);
2037 static int udp_chr_read_poll(void *opaque)
2039 CharDriverState *chr = opaque;
2040 NetCharDriver *s = chr->opaque;
2042 s->max_size = qemu_chr_be_can_write(chr);
2044 /* If there were any stray characters in the queue process them
2047 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2048 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2050 s->max_size = qemu_chr_be_can_write(chr);
2055 static void udp_chr_read(void *opaque)
2057 CharDriverState *chr = opaque;
2058 NetCharDriver *s = chr->opaque;
2060 if (s->max_size == 0)
2062 s->bufcnt = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0);
2063 s->bufptr = s->bufcnt;
2068 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2069 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2071 s->max_size = qemu_chr_be_can_write(chr);
2075 static void udp_chr_update_read_handler(CharDriverState *chr)
2077 NetCharDriver *s = chr->opaque;
2080 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
2081 udp_chr_read, NULL, chr);
2085 static void udp_chr_close(CharDriverState *chr)
2087 NetCharDriver *s = chr->opaque;
2089 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2093 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2096 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2098 CharDriverState *chr = NULL;
2099 NetCharDriver *s = NULL;
2102 chr = g_malloc0(sizeof(CharDriverState));
2103 s = g_malloc0(sizeof(NetCharDriver));
2105 fd = inet_dgram_opts(opts);
2107 fprintf(stderr, "inet_dgram_opts failed\n");
2115 chr->chr_write = udp_chr_write;
2116 chr->chr_update_read_handler = udp_chr_update_read_handler;
2117 chr->chr_close = udp_chr_close;
2129 /***********************************************************/
2130 /* TCP Net console */
2142 static void tcp_chr_accept(void *opaque);
2144 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2146 TCPCharDriver *s = chr->opaque;
2148 return send_all(s->fd, buf, len);
2150 /* XXX: indicate an error ? */
2155 static int tcp_chr_read_poll(void *opaque)
2157 CharDriverState *chr = opaque;
2158 TCPCharDriver *s = chr->opaque;
2161 s->max_size = qemu_chr_be_can_write(chr);
2166 #define IAC_BREAK 243
2167 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2169 uint8_t *buf, int *size)
2171 /* Handle any telnet client's basic IAC options to satisfy char by
2172 * char mode with no echo. All IAC options will be removed from
2173 * the buf and the do_telnetopt variable will be used to track the
2174 * state of the width of the IAC information.
2176 * IAC commands come in sets of 3 bytes with the exception of the
2177 * "IAC BREAK" command and the double IAC.
2183 for (i = 0; i < *size; i++) {
2184 if (s->do_telnetopt > 1) {
2185 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2186 /* Double IAC means send an IAC */
2190 s->do_telnetopt = 1;
2192 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2193 /* Handle IAC break commands by sending a serial break */
2194 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2199 if (s->do_telnetopt >= 4) {
2200 s->do_telnetopt = 1;
2203 if ((unsigned char)buf[i] == IAC) {
2204 s->do_telnetopt = 2;
2215 static int tcp_get_msgfd(CharDriverState *chr)
2217 TCPCharDriver *s = chr->opaque;
2224 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2226 TCPCharDriver *s = chr->opaque;
2227 struct cmsghdr *cmsg;
2229 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2232 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2233 cmsg->cmsg_level != SOL_SOCKET ||
2234 cmsg->cmsg_type != SCM_RIGHTS)
2237 fd = *((int *)CMSG_DATA(cmsg));
2241 #ifndef MSG_CMSG_CLOEXEC
2242 qemu_set_cloexec(fd);
2250 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2252 TCPCharDriver *s = chr->opaque;
2253 struct msghdr msg = { NULL, };
2254 struct iovec iov[1];
2256 struct cmsghdr cmsg;
2257 char control[CMSG_SPACE(sizeof(int))];
2262 iov[0].iov_base = buf;
2263 iov[0].iov_len = len;
2267 msg.msg_control = &msg_control;
2268 msg.msg_controllen = sizeof(msg_control);
2270 #ifdef MSG_CMSG_CLOEXEC
2271 flags |= MSG_CMSG_CLOEXEC;
2273 ret = recvmsg(s->fd, &msg, flags);
2274 if (ret > 0 && s->is_unix) {
2275 unix_process_msgfd(chr, &msg);
2281 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2283 TCPCharDriver *s = chr->opaque;
2284 return qemu_recv(s->fd, buf, len, 0);
2288 static void tcp_chr_read(void *opaque)
2290 CharDriverState *chr = opaque;
2291 TCPCharDriver *s = chr->opaque;
2292 uint8_t buf[READ_BUF_LEN];
2295 if (!s->connected || s->max_size <= 0)
2298 if (len > s->max_size)
2300 size = tcp_chr_recv(chr, (void *)buf, len);
2302 /* connection closed */
2304 if (s->listen_fd >= 0) {
2305 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2307 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2310 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2311 } else if (size > 0) {
2312 if (s->do_telnetopt)
2313 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2315 qemu_chr_be_write(chr, buf, size);
2320 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2322 return qemu_chr_open_fd(eventfd, eventfd);
2326 static void tcp_chr_connect(void *opaque)
2328 CharDriverState *chr = opaque;
2329 TCPCharDriver *s = chr->opaque;
2333 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2334 tcp_chr_read, NULL, chr);
2336 qemu_chr_generic_open(chr);
2339 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2340 static void tcp_chr_telnet_init(int fd)
2343 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2344 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2345 send(fd, (char *)buf, 3, 0);
2346 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2347 send(fd, (char *)buf, 3, 0);
2348 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2349 send(fd, (char *)buf, 3, 0);
2350 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2351 send(fd, (char *)buf, 3, 0);
2354 static void socket_set_nodelay(int fd)
2357 setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
2360 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2362 TCPCharDriver *s = chr->opaque;
2366 socket_set_nonblock(fd);
2368 socket_set_nodelay(fd);
2370 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
2371 tcp_chr_connect(chr);
2376 static void tcp_chr_accept(void *opaque)
2378 CharDriverState *chr = opaque;
2379 TCPCharDriver *s = chr->opaque;
2380 struct sockaddr_in saddr;
2382 struct sockaddr_un uaddr;
2384 struct sockaddr *addr;
2391 len = sizeof(uaddr);
2392 addr = (struct sockaddr *)&uaddr;
2396 len = sizeof(saddr);
2397 addr = (struct sockaddr *)&saddr;
2399 fd = qemu_accept(s->listen_fd, addr, &len);
2400 if (fd < 0 && errno != EINTR) {
2402 } else if (fd >= 0) {
2403 if (s->do_telnetopt)
2404 tcp_chr_telnet_init(fd);
2408 if (tcp_chr_add_client(chr, fd) < 0)
2412 static void tcp_chr_close(CharDriverState *chr)
2414 TCPCharDriver *s = chr->opaque;
2416 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2419 if (s->listen_fd >= 0) {
2420 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
2421 closesocket(s->listen_fd);
2424 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2427 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2429 CharDriverState *chr = NULL;
2430 TCPCharDriver *s = NULL;
2438 is_listen = qemu_opt_get_bool(opts, "server", 0);
2439 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2440 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2441 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2442 is_unix = qemu_opt_get(opts, "path") != NULL;
2446 chr = g_malloc0(sizeof(CharDriverState));
2447 s = g_malloc0(sizeof(TCPCharDriver));
2451 fd = unix_listen_opts(opts);
2453 fd = unix_connect_opts(opts);
2457 fd = inet_listen_opts(opts, 0, NULL);
2459 fd = inet_connect_opts(opts, NULL, NULL);
2466 if (!is_waitconnect)
2467 socket_set_nonblock(fd);
2473 s->is_unix = is_unix;
2474 s->do_nodelay = do_nodelay && !is_unix;
2477 chr->chr_write = tcp_chr_write;
2478 chr->chr_close = tcp_chr_close;
2479 chr->get_msgfd = tcp_get_msgfd;
2480 chr->chr_add_client = tcp_chr_add_client;
2484 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2486 s->do_telnetopt = 1;
2491 socket_set_nodelay(fd);
2492 tcp_chr_connect(chr);
2495 /* for "info chardev" monitor command */
2496 chr->filename = g_malloc(256);
2498 snprintf(chr->filename, 256, "unix:%s%s",
2499 qemu_opt_get(opts, "path"),
2500 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2501 } else if (is_telnet) {
2502 snprintf(chr->filename, 256, "telnet:%s:%s%s",
2503 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2504 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2506 snprintf(chr->filename, 256, "tcp:%s:%s%s",
2507 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2508 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2511 if (is_listen && is_waitconnect) {
2512 printf("QEMU waiting for connection on: %s\n",
2514 tcp_chr_accept(chr);
2515 socket_set_nonblock(s->listen_fd);
2527 /***********************************************************/
2528 /* Memory chardev */
2531 size_t outbuf_capacity;
2535 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2537 MemoryDriver *d = chr->opaque;
2539 /* TODO: the QString implementation has the same code, we should
2540 * introduce a generic way to do this in cutils.c */
2541 if (d->outbuf_capacity < d->outbuf_size + len) {
2543 d->outbuf_capacity += len;
2544 d->outbuf_capacity *= 2;
2545 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2548 memcpy(d->outbuf + d->outbuf_size, buf, len);
2549 d->outbuf_size += len;
2554 void qemu_chr_init_mem(CharDriverState *chr)
2558 d = g_malloc(sizeof(*d));
2560 d->outbuf_capacity = 4096;
2561 d->outbuf = g_malloc0(d->outbuf_capacity);
2563 memset(chr, 0, sizeof(*chr));
2565 chr->chr_write = mem_chr_write;
2568 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2570 MemoryDriver *d = chr->opaque;
2571 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2574 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2575 void qemu_chr_close_mem(CharDriverState *chr)
2577 MemoryDriver *d = chr->opaque;
2580 g_free(chr->opaque);
2582 chr->chr_write = NULL;
2585 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2587 const MemoryDriver *d = chr->opaque;
2588 return d->outbuf_size;
2591 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2593 char host[65], port[33], width[8], height[8];
2597 Error *local_err = NULL;
2599 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
2600 if (error_is_set(&local_err)) {
2601 qerror_report_err(local_err);
2602 error_free(local_err);
2606 if (strstart(filename, "mon:", &p)) {
2608 qemu_opt_set(opts, "mux", "on");
2611 if (strcmp(filename, "null") == 0 ||
2612 strcmp(filename, "pty") == 0 ||
2613 strcmp(filename, "msmouse") == 0 ||
2614 strcmp(filename, "braille") == 0 ||
2615 strcmp(filename, "stdio") == 0) {
2616 qemu_opt_set(opts, "backend", filename);
2619 if (strstart(filename, "vc", &p)) {
2620 qemu_opt_set(opts, "backend", "vc");
2622 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2624 qemu_opt_set(opts, "width", width);
2625 qemu_opt_set(opts, "height", height);
2626 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2628 qemu_opt_set(opts, "cols", width);
2629 qemu_opt_set(opts, "rows", height);
2636 if (strcmp(filename, "con:") == 0) {
2637 qemu_opt_set(opts, "backend", "console");
2640 if (strstart(filename, "COM", NULL)) {
2641 qemu_opt_set(opts, "backend", "serial");
2642 qemu_opt_set(opts, "path", filename);
2645 if (strstart(filename, "file:", &p)) {
2646 qemu_opt_set(opts, "backend", "file");
2647 qemu_opt_set(opts, "path", p);
2650 if (strstart(filename, "pipe:", &p)) {
2651 qemu_opt_set(opts, "backend", "pipe");
2652 qemu_opt_set(opts, "path", p);
2655 if (strstart(filename, "tcp:", &p) ||
2656 strstart(filename, "telnet:", &p)) {
2657 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2659 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2662 qemu_opt_set(opts, "backend", "socket");
2663 qemu_opt_set(opts, "host", host);
2664 qemu_opt_set(opts, "port", port);
2665 if (p[pos] == ',') {
2666 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2669 if (strstart(filename, "telnet:", &p))
2670 qemu_opt_set(opts, "telnet", "on");
2673 if (strstart(filename, "udp:", &p)) {
2674 qemu_opt_set(opts, "backend", "udp");
2675 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2677 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
2681 qemu_opt_set(opts, "host", host);
2682 qemu_opt_set(opts, "port", port);
2683 if (p[pos] == '@') {
2685 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2687 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2691 qemu_opt_set(opts, "localaddr", host);
2692 qemu_opt_set(opts, "localport", port);
2696 if (strstart(filename, "unix:", &p)) {
2697 qemu_opt_set(opts, "backend", "socket");
2698 if (qemu_opts_do_parse(opts, p, "path") != 0)
2702 if (strstart(filename, "/dev/parport", NULL) ||
2703 strstart(filename, "/dev/ppi", NULL)) {
2704 qemu_opt_set(opts, "backend", "parport");
2705 qemu_opt_set(opts, "path", filename);
2708 if (strstart(filename, "/dev/", NULL)) {
2709 qemu_opt_set(opts, "backend", "tty");
2710 qemu_opt_set(opts, "path", filename);
2715 qemu_opts_del(opts);
2719 static const struct {
2721 CharDriverState *(*open)(QemuOpts *opts);
2722 } backend_table[] = {
2723 { .name = "null", .open = qemu_chr_open_null },
2724 { .name = "socket", .open = qemu_chr_open_socket },
2725 { .name = "udp", .open = qemu_chr_open_udp },
2726 { .name = "msmouse", .open = qemu_chr_open_msmouse },
2727 { .name = "vc", .open = text_console_init },
2729 { .name = "file", .open = qemu_chr_open_win_file_out },
2730 { .name = "pipe", .open = qemu_chr_open_win_pipe },
2731 { .name = "console", .open = qemu_chr_open_win_con },
2732 { .name = "serial", .open = qemu_chr_open_win },
2733 { .name = "stdio", .open = qemu_chr_open_win_stdio },
2735 { .name = "file", .open = qemu_chr_open_file_out },
2736 { .name = "pipe", .open = qemu_chr_open_pipe },
2737 { .name = "pty", .open = qemu_chr_open_pty },
2738 { .name = "stdio", .open = qemu_chr_open_stdio },
2740 #ifdef CONFIG_BRLAPI
2741 { .name = "braille", .open = chr_baum_init },
2743 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2744 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
2745 || defined(__FreeBSD_kernel__)
2746 { .name = "tty", .open = qemu_chr_open_tty },
2748 #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
2749 || defined(__FreeBSD_kernel__)
2750 { .name = "parport", .open = qemu_chr_open_pp },
2753 { .name = "spicevmc", .open = qemu_chr_open_spice },
2757 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
2758 void (*init)(struct CharDriverState *s))
2760 CharDriverState *chr;
2763 if (qemu_opts_id(opts) == NULL) {
2764 fprintf(stderr, "chardev: no id specified\n");
2768 if (qemu_opt_get(opts, "backend") == NULL) {
2769 fprintf(stderr, "chardev: \"%s\" missing backend\n",
2770 qemu_opts_id(opts));
2773 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
2774 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
2777 if (i == ARRAY_SIZE(backend_table)) {
2778 fprintf(stderr, "chardev: backend \"%s\" not found\n",
2779 qemu_opt_get(opts, "backend"));
2783 chr = backend_table[i].open(opts);
2785 fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
2786 qemu_opt_get(opts, "backend"));
2791 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
2793 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2795 if (qemu_opt_get_bool(opts, "mux", 0)) {
2796 CharDriverState *base = chr;
2797 int len = strlen(qemu_opts_id(opts)) + 6;
2798 base->label = g_malloc(len);
2799 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
2800 chr = qemu_chr_open_mux(base);
2801 chr->filename = base->filename;
2802 chr->avail_connections = MAX_MUX;
2803 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2805 chr->avail_connections = 1;
2807 chr->label = g_strdup(qemu_opts_id(opts));
2811 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
2814 CharDriverState *chr;
2817 if (strstart(filename, "chardev:", &p)) {
2818 return qemu_chr_find(p);
2821 opts = qemu_chr_parse_compat(label, filename);
2825 chr = qemu_chr_new_from_opts(opts, init);
2826 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
2827 monitor_init(chr, MONITOR_USE_READLINE);
2829 qemu_opts_del(opts);
2833 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
2835 if (chr->chr_set_echo) {
2836 chr->chr_set_echo(chr, echo);
2840 void qemu_chr_fe_open(struct CharDriverState *chr)
2842 if (chr->chr_guest_open) {
2843 chr->chr_guest_open(chr);
2847 void qemu_chr_fe_close(struct CharDriverState *chr)
2849 if (chr->chr_guest_close) {
2850 chr->chr_guest_close(chr);
2854 void qemu_chr_delete(CharDriverState *chr)
2856 QTAILQ_REMOVE(&chardevs, chr, next);
2858 chr->chr_close(chr);
2859 g_free(chr->filename);
2864 ChardevInfoList *qmp_query_chardev(Error **errp)
2866 ChardevInfoList *chr_list = NULL;
2867 CharDriverState *chr;
2869 QTAILQ_FOREACH(chr, &chardevs, next) {
2870 ChardevInfoList *info = g_malloc0(sizeof(*info));
2871 info->value = g_malloc0(sizeof(*info->value));
2872 info->value->label = g_strdup(chr->label);
2873 info->value->filename = g_strdup(chr->filename);
2875 info->next = chr_list;
2882 CharDriverState *qemu_chr_find(const char *name)
2884 CharDriverState *chr;
2886 QTAILQ_FOREACH(chr, &chardevs, next) {
2887 if (strcmp(chr->label, name) != 0)
2894 /* Get a character (serial) device interface. */
2895 CharDriverState *qemu_char_get_next_serial(void)
2897 static int next_serial;
2899 /* FIXME: This function needs to go away: use chardev properties! */
2900 return serial_hds[next_serial++];