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_fire_open_event(void *opaque)
128 CharDriverState *s = opaque;
129 qemu_chr_be_event(s, CHR_EVENT_OPENED);
130 qemu_free_timer(s->open_timer);
131 s->open_timer = NULL;
134 void qemu_chr_generic_open(CharDriverState *s)
136 if (s->open_timer == NULL) {
137 s->open_timer = qemu_new_timer_ms(rt_clock,
138 qemu_chr_fire_open_event, s);
139 qemu_mod_timer(s->open_timer, qemu_get_clock_ms(rt_clock) - 1);
143 int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len)
145 return s->chr_write(s, buf, len);
148 int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg)
152 return s->chr_ioctl(s, cmd, arg);
155 int qemu_chr_be_can_write(CharDriverState *s)
157 if (!s->chr_can_read)
159 return s->chr_can_read(s->handler_opaque);
162 void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len)
165 s->chr_read(s->handler_opaque, buf, len);
169 int qemu_chr_fe_get_msgfd(CharDriverState *s)
171 return s->get_msgfd ? s->get_msgfd(s) : -1;
174 int qemu_chr_add_client(CharDriverState *s, int fd)
176 return s->chr_add_client ? s->chr_add_client(s, fd) : -1;
179 void qemu_chr_accept_input(CharDriverState *s)
181 if (s->chr_accept_input)
182 s->chr_accept_input(s);
186 void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...)
188 char buf[READ_BUF_LEN];
191 vsnprintf(buf, sizeof(buf), fmt, ap);
192 qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf));
196 void qemu_chr_add_handlers(CharDriverState *s,
197 IOCanReadHandler *fd_can_read,
198 IOReadHandler *fd_read,
199 IOEventHandler *fd_event,
202 if (!opaque && !fd_can_read && !fd_read && !fd_event) {
203 /* chr driver being released. */
204 ++s->avail_connections;
206 s->chr_can_read = fd_can_read;
207 s->chr_read = fd_read;
208 s->chr_event = fd_event;
209 s->handler_opaque = opaque;
210 if (s->chr_update_read_handler)
211 s->chr_update_read_handler(s);
213 /* We're connecting to an already opened device, so let's make sure we
214 also get the open event */
216 qemu_chr_generic_open(s);
220 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
225 static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
227 CharDriverState *chr;
229 chr = g_malloc0(sizeof(CharDriverState));
230 chr->chr_write = null_chr_write;
234 /* MUX driver for serial I/O splitting */
236 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
237 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
239 IOCanReadHandler *chr_can_read[MAX_MUX];
240 IOReadHandler *chr_read[MAX_MUX];
241 IOEventHandler *chr_event[MAX_MUX];
242 void *ext_opaque[MAX_MUX];
243 CharDriverState *drv;
248 /* Intermediate input buffer allows to catch escape sequences even if the
249 currently active device is not accepting any input - but only until it
251 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
256 int64_t timestamps_start;
260 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
262 MuxDriver *d = chr->opaque;
264 if (!d->timestamps) {
265 ret = d->drv->chr_write(d->drv, buf, len);
270 for (i = 0; i < len; i++) {
276 ti = qemu_get_clock_ms(rt_clock);
277 if (d->timestamps_start == -1)
278 d->timestamps_start = ti;
279 ti -= d->timestamps_start;
281 snprintf(buf1, sizeof(buf1),
282 "[%02d:%02d:%02d.%03d] ",
287 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
290 ret += d->drv->chr_write(d->drv, buf+i, 1);
291 if (buf[i] == '\n') {
299 static const char * const mux_help[] = {
300 "% h print this help\n\r",
301 "% x exit emulator\n\r",
302 "% s save disk data back to file (if -snapshot)\n\r",
303 "% t toggle console timestamps\n\r"
304 "% b send break (magic sysrq)\n\r",
305 "% c switch between console and monitor\n\r",
310 int term_escape_char = 0x01; /* ctrl-a is used for escape */
311 static void mux_print_help(CharDriverState *chr)
314 char ebuf[15] = "Escape-Char";
315 char cbuf[50] = "\n\r";
317 if (term_escape_char > 0 && term_escape_char < 26) {
318 snprintf(cbuf, sizeof(cbuf), "\n\r");
319 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
321 snprintf(cbuf, sizeof(cbuf),
322 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
325 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
326 for (i = 0; mux_help[i] != NULL; i++) {
327 for (j=0; mux_help[i][j] != '\0'; j++) {
328 if (mux_help[i][j] == '%')
329 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
331 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
336 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
338 if (d->chr_event[mux_nr])
339 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
342 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
344 if (d->term_got_escape) {
345 d->term_got_escape = 0;
346 if (ch == term_escape_char)
355 const char *term = "QEMU: Terminated\n\r";
356 chr->chr_write(chr,(uint8_t *)term,strlen(term));
364 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
367 /* Switch to the next registered device */
368 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
370 if (d->focus >= d->mux_cnt)
372 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
375 d->timestamps = !d->timestamps;
376 d->timestamps_start = -1;
380 } else if (ch == term_escape_char) {
381 d->term_got_escape = 1;
389 static void mux_chr_accept_input(CharDriverState *chr)
391 MuxDriver *d = chr->opaque;
394 while (d->prod[m] != d->cons[m] &&
395 d->chr_can_read[m] &&
396 d->chr_can_read[m](d->ext_opaque[m])) {
397 d->chr_read[m](d->ext_opaque[m],
398 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
402 static int mux_chr_can_read(void *opaque)
404 CharDriverState *chr = opaque;
405 MuxDriver *d = chr->opaque;
408 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
410 if (d->chr_can_read[m])
411 return d->chr_can_read[m](d->ext_opaque[m]);
415 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
417 CharDriverState *chr = opaque;
418 MuxDriver *d = chr->opaque;
422 mux_chr_accept_input (opaque);
424 for(i = 0; i < size; i++)
425 if (mux_proc_byte(chr, d, buf[i])) {
426 if (d->prod[m] == d->cons[m] &&
427 d->chr_can_read[m] &&
428 d->chr_can_read[m](d->ext_opaque[m]))
429 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
431 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
435 static void mux_chr_event(void *opaque, int event)
437 CharDriverState *chr = opaque;
438 MuxDriver *d = chr->opaque;
441 /* Send the event to all registered listeners */
442 for (i = 0; i < d->mux_cnt; i++)
443 mux_chr_send_event(d, i, event);
446 static void mux_chr_update_read_handler(CharDriverState *chr)
448 MuxDriver *d = chr->opaque;
450 if (d->mux_cnt >= MAX_MUX) {
451 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
454 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
455 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
456 d->chr_read[d->mux_cnt] = chr->chr_read;
457 d->chr_event[d->mux_cnt] = chr->chr_event;
458 /* Fix up the real driver with mux routines */
459 if (d->mux_cnt == 0) {
460 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
463 if (d->focus != -1) {
464 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
466 d->focus = d->mux_cnt;
468 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
471 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
473 CharDriverState *chr;
476 chr = g_malloc0(sizeof(CharDriverState));
477 d = g_malloc0(sizeof(MuxDriver));
482 chr->chr_write = mux_chr_write;
483 chr->chr_update_read_handler = mux_chr_update_read_handler;
484 chr->chr_accept_input = mux_chr_accept_input;
485 /* Frontend guest-open / -close notification is not support with muxes */
486 chr->chr_guest_open = NULL;
487 chr->chr_guest_close = NULL;
489 /* Muxes are always open on creation */
490 qemu_chr_generic_open(chr);
497 int send_all(int fd, const void *buf, int len1)
503 ret = send(fd, buf, len, 0);
505 errno = WSAGetLastError();
506 if (errno != WSAEWOULDBLOCK) {
509 } else if (ret == 0) {
521 int send_all(int fd, const void *_buf, int len1)
524 const uint8_t *buf = _buf;
528 ret = write(fd, buf, len);
530 if (errno != EINTR && errno != EAGAIN)
532 } else if (ret == 0) {
543 #define STDIO_MAX_CLIENTS 1
544 static int stdio_nb_clients;
554 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
556 FDCharDriver *s = chr->opaque;
557 return send_all(s->fd_out, buf, len);
560 static int fd_chr_read_poll(void *opaque)
562 CharDriverState *chr = opaque;
563 FDCharDriver *s = chr->opaque;
565 s->max_size = qemu_chr_be_can_write(chr);
569 static void fd_chr_read(void *opaque)
571 CharDriverState *chr = opaque;
572 FDCharDriver *s = chr->opaque;
574 uint8_t buf[READ_BUF_LEN];
577 if (len > s->max_size)
581 size = read(s->fd_in, buf, len);
583 /* FD has been closed. Remove it from the active list. */
584 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
585 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
589 qemu_chr_be_write(chr, buf, size);
593 static void fd_chr_update_read_handler(CharDriverState *chr)
595 FDCharDriver *s = chr->opaque;
598 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
600 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
601 fd_chr_read, NULL, chr);
606 static void fd_chr_close(struct CharDriverState *chr)
608 FDCharDriver *s = chr->opaque;
611 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
613 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
618 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
621 /* open a character device to a unix fd */
622 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
624 CharDriverState *chr;
627 chr = g_malloc0(sizeof(CharDriverState));
628 s = g_malloc0(sizeof(FDCharDriver));
632 chr->chr_write = fd_chr_write;
633 chr->chr_update_read_handler = fd_chr_update_read_handler;
634 chr->chr_close = fd_chr_close;
636 qemu_chr_generic_open(chr);
641 static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
645 TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
646 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
650 return qemu_chr_open_fd(-1, fd_out);
653 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
656 char filename_in[256], filename_out[256];
657 const char *filename = qemu_opt_get(opts, "path");
659 if (filename == NULL) {
660 fprintf(stderr, "chardev: pipe: no filename given\n");
664 snprintf(filename_in, 256, "%s.in", filename);
665 snprintf(filename_out, 256, "%s.out", filename);
666 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
667 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
668 if (fd_in < 0 || fd_out < 0) {
673 TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
678 return qemu_chr_open_fd(fd_in, fd_out);
682 /* for STDIO, we handle the case where several clients use it
685 #define TERM_FIFO_MAX_SIZE 1
687 static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
688 static int term_fifo_size;
690 static int stdio_read_poll(void *opaque)
692 CharDriverState *chr = opaque;
694 /* try to flush the queue if needed */
695 if (term_fifo_size != 0 && qemu_chr_be_can_write(chr) > 0) {
696 qemu_chr_be_write(chr, term_fifo, 1);
699 /* see if we can absorb more chars */
700 if (term_fifo_size == 0)
706 static void stdio_read(void *opaque)
710 CharDriverState *chr = opaque;
712 size = read(0, buf, 1);
714 /* stdin has been closed. Remove it from the active list. */
715 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
716 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
720 if (qemu_chr_be_can_write(chr) > 0) {
721 qemu_chr_be_write(chr, buf, 1);
722 } else if (term_fifo_size == 0) {
723 term_fifo[term_fifo_size++] = buf[0];
728 /* init terminal so that we can grab keys */
729 static struct termios oldtty;
730 static int old_fd0_flags;
731 static bool stdio_allow_signal;
733 static void term_exit(void)
735 tcsetattr (0, TCSANOW, &oldtty);
736 fcntl(0, F_SETFL, old_fd0_flags);
739 static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo)
745 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
746 |INLCR|IGNCR|ICRNL|IXON);
747 tty.c_oflag |= OPOST;
748 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
749 tty.c_cflag &= ~(CSIZE|PARENB);
754 /* if graphical mode, we allow Ctrl-C handling */
755 if (!stdio_allow_signal)
756 tty.c_lflag &= ~ISIG;
758 tcsetattr (0, TCSANOW, &tty);
761 static void qemu_chr_close_stdio(struct CharDriverState *chr)
765 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
769 static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
771 CharDriverState *chr;
773 if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
776 if (stdio_nb_clients == 0) {
777 old_fd0_flags = fcntl(0, F_GETFL);
778 tcgetattr (0, &oldtty);
779 fcntl(0, F_SETFL, O_NONBLOCK);
783 chr = qemu_chr_open_fd(0, 1);
784 chr->chr_close = qemu_chr_close_stdio;
785 chr->chr_set_echo = qemu_chr_set_echo_stdio;
786 qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
788 stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
789 display_type != DT_NOGRAPHIC);
790 qemu_chr_fe_set_echo(chr, false);
796 /* Once Solaris has openpty(), this is going to be removed. */
797 static int openpty(int *amaster, int *aslave, char *name,
798 struct termios *termp, struct winsize *winp)
801 int mfd = -1, sfd = -1;
803 *amaster = *aslave = -1;
805 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
809 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
812 if ((slave = ptsname(mfd)) == NULL)
815 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
818 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
819 (termp != NULL && tcgetattr(sfd, termp) < 0))
827 ioctl(sfd, TIOCSWINSZ, winp);
838 static void cfmakeraw (struct termios *termios_p)
840 termios_p->c_iflag &=
841 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
842 termios_p->c_oflag &= ~OPOST;
843 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
844 termios_p->c_cflag &= ~(CSIZE|PARENB);
845 termios_p->c_cflag |= CS8;
847 termios_p->c_cc[VMIN] = 0;
848 termios_p->c_cc[VTIME] = 0;
852 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
853 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
854 || defined(__GLIBC__)
864 static void pty_chr_update_read_handler(CharDriverState *chr);
865 static void pty_chr_state(CharDriverState *chr, int connected);
867 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
869 PtyCharDriver *s = chr->opaque;
872 /* guest sends data, check for (re-)connect */
873 pty_chr_update_read_handler(chr);
876 return send_all(s->fd, buf, len);
879 static int pty_chr_read_poll(void *opaque)
881 CharDriverState *chr = opaque;
882 PtyCharDriver *s = chr->opaque;
884 s->read_bytes = qemu_chr_be_can_write(chr);
885 return s->read_bytes;
888 static void pty_chr_read(void *opaque)
890 CharDriverState *chr = opaque;
891 PtyCharDriver *s = chr->opaque;
893 uint8_t buf[READ_BUF_LEN];
896 if (len > s->read_bytes)
900 size = read(s->fd, buf, len);
901 if ((size == -1 && errno == EIO) ||
903 pty_chr_state(chr, 0);
907 pty_chr_state(chr, 1);
908 qemu_chr_be_write(chr, buf, size);
912 static void pty_chr_update_read_handler(CharDriverState *chr)
914 PtyCharDriver *s = chr->opaque;
916 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
917 pty_chr_read, NULL, chr);
920 * Short timeout here: just need wait long enougth that qemu makes
921 * it through the poll loop once. When reconnected we want a
922 * short timeout so we notice it almost instantly. Otherwise
923 * read() gives us -EIO instantly, making pty_chr_state() reset the
924 * timeout to the normal (much longer) poll interval before the
927 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
930 static void pty_chr_state(CharDriverState *chr, int connected)
932 PtyCharDriver *s = chr->opaque;
935 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
938 /* (re-)connect poll interval for idle guests: once per second.
939 * We check more frequently in case the guests sends data to
940 * the virtual device linked to our pty. */
941 qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
944 qemu_chr_generic_open(chr);
949 static void pty_chr_timer(void *opaque)
951 struct CharDriverState *chr = opaque;
952 PtyCharDriver *s = chr->opaque;
957 /* If we arrive here without polling being cleared due
958 * read returning -EIO, then we are (re-)connected */
959 pty_chr_state(chr, 1);
964 pty_chr_update_read_handler(chr);
967 static void pty_chr_close(struct CharDriverState *chr)
969 PtyCharDriver *s = chr->opaque;
971 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
973 qemu_del_timer(s->timer);
974 qemu_free_timer(s->timer);
976 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
979 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
981 CharDriverState *chr;
984 int master_fd, slave_fd, len;
985 #if defined(__OpenBSD__) || defined(__DragonFly__)
986 char pty_name[PATH_MAX];
987 #define q_ptsname(x) pty_name
989 char *pty_name = NULL;
990 #define q_ptsname(x) ptsname(x)
993 if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
997 /* Set raw attributes on the pty. */
998 tcgetattr(slave_fd, &tty);
1000 tcsetattr(slave_fd, TCSAFLUSH, &tty);
1003 chr = g_malloc0(sizeof(CharDriverState));
1005 len = strlen(q_ptsname(master_fd)) + 5;
1006 chr->filename = g_malloc(len);
1007 snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
1008 qemu_opt_set(opts, "path", q_ptsname(master_fd));
1009 fprintf(stderr, "char device redirected to %s\n", q_ptsname(master_fd));
1011 s = g_malloc0(sizeof(PtyCharDriver));
1013 chr->chr_write = pty_chr_write;
1014 chr->chr_update_read_handler = pty_chr_update_read_handler;
1015 chr->chr_close = pty_chr_close;
1018 s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
1023 static void tty_serial_init(int fd, int speed,
1024 int parity, int data_bits, int stop_bits)
1030 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1031 speed, parity, data_bits, stop_bits);
1033 tcgetattr (fd, &tty);
1035 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1036 speed = speed * 10 / 11;
1053 /* Non-Posix values follow. They may be unsupported on some systems. */
1055 check_speed(115200);
1057 check_speed(230400);
1060 check_speed(460800);
1063 check_speed(500000);
1066 check_speed(576000);
1069 check_speed(921600);
1072 check_speed(1000000);
1075 check_speed(1152000);
1078 check_speed(1500000);
1081 check_speed(2000000);
1084 check_speed(2500000);
1087 check_speed(3000000);
1090 check_speed(3500000);
1093 check_speed(4000000);
1098 cfsetispeed(&tty, spd);
1099 cfsetospeed(&tty, spd);
1101 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1102 |INLCR|IGNCR|ICRNL|IXON);
1103 tty.c_oflag |= OPOST;
1104 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1105 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1126 tty.c_cflag |= PARENB;
1129 tty.c_cflag |= PARENB | PARODD;
1133 tty.c_cflag |= CSTOPB;
1135 tcsetattr (fd, TCSANOW, &tty);
1138 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1140 FDCharDriver *s = chr->opaque;
1143 case CHR_IOCTL_SERIAL_SET_PARAMS:
1145 QEMUSerialSetParams *ssp = arg;
1146 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1147 ssp->data_bits, ssp->stop_bits);
1150 case CHR_IOCTL_SERIAL_SET_BREAK:
1152 int enable = *(int *)arg;
1154 tcsendbreak(s->fd_in, 1);
1157 case CHR_IOCTL_SERIAL_GET_TIOCM:
1160 int *targ = (int *)arg;
1161 ioctl(s->fd_in, TIOCMGET, &sarg);
1163 if (sarg & TIOCM_CTS)
1164 *targ |= CHR_TIOCM_CTS;
1165 if (sarg & TIOCM_CAR)
1166 *targ |= CHR_TIOCM_CAR;
1167 if (sarg & TIOCM_DSR)
1168 *targ |= CHR_TIOCM_DSR;
1169 if (sarg & TIOCM_RI)
1170 *targ |= CHR_TIOCM_RI;
1171 if (sarg & TIOCM_DTR)
1172 *targ |= CHR_TIOCM_DTR;
1173 if (sarg & TIOCM_RTS)
1174 *targ |= CHR_TIOCM_RTS;
1177 case CHR_IOCTL_SERIAL_SET_TIOCM:
1179 int sarg = *(int *)arg;
1181 ioctl(s->fd_in, TIOCMGET, &targ);
1182 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1183 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1184 if (sarg & CHR_TIOCM_CTS)
1186 if (sarg & CHR_TIOCM_CAR)
1188 if (sarg & CHR_TIOCM_DSR)
1190 if (sarg & CHR_TIOCM_RI)
1192 if (sarg & CHR_TIOCM_DTR)
1194 if (sarg & CHR_TIOCM_RTS)
1196 ioctl(s->fd_in, TIOCMSET, &targ);
1205 static void qemu_chr_close_tty(CharDriverState *chr)
1207 FDCharDriver *s = chr->opaque;
1221 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1223 const char *filename = qemu_opt_get(opts, "path");
1224 CharDriverState *chr;
1227 TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
1231 tty_serial_init(fd, 115200, 'N', 8, 1);
1232 chr = qemu_chr_open_fd(fd, fd);
1233 chr->chr_ioctl = tty_serial_ioctl;
1234 chr->chr_close = qemu_chr_close_tty;
1237 #else /* ! __linux__ && ! __sun__ */
1238 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
1242 #endif /* __linux__ || __sun__ */
1244 #if defined(__linux__)
1248 } ParallelCharDriver;
1250 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1252 if (s->mode != mode) {
1254 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1261 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1263 ParallelCharDriver *drv = chr->opaque;
1268 case CHR_IOCTL_PP_READ_DATA:
1269 if (ioctl(fd, PPRDATA, &b) < 0)
1271 *(uint8_t *)arg = b;
1273 case CHR_IOCTL_PP_WRITE_DATA:
1274 b = *(uint8_t *)arg;
1275 if (ioctl(fd, PPWDATA, &b) < 0)
1278 case CHR_IOCTL_PP_READ_CONTROL:
1279 if (ioctl(fd, PPRCONTROL, &b) < 0)
1281 /* Linux gives only the lowest bits, and no way to know data
1282 direction! For better compatibility set the fixed upper
1284 *(uint8_t *)arg = b | 0xc0;
1286 case CHR_IOCTL_PP_WRITE_CONTROL:
1287 b = *(uint8_t *)arg;
1288 if (ioctl(fd, PPWCONTROL, &b) < 0)
1291 case CHR_IOCTL_PP_READ_STATUS:
1292 if (ioctl(fd, PPRSTATUS, &b) < 0)
1294 *(uint8_t *)arg = b;
1296 case CHR_IOCTL_PP_DATA_DIR:
1297 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1300 case CHR_IOCTL_PP_EPP_READ_ADDR:
1301 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1302 struct ParallelIOArg *parg = arg;
1303 int n = read(fd, parg->buffer, parg->count);
1304 if (n != parg->count) {
1309 case CHR_IOCTL_PP_EPP_READ:
1310 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1311 struct ParallelIOArg *parg = arg;
1312 int n = read(fd, parg->buffer, parg->count);
1313 if (n != parg->count) {
1318 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1319 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1320 struct ParallelIOArg *parg = arg;
1321 int n = write(fd, parg->buffer, parg->count);
1322 if (n != parg->count) {
1327 case CHR_IOCTL_PP_EPP_WRITE:
1328 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1329 struct ParallelIOArg *parg = arg;
1330 int n = write(fd, parg->buffer, parg->count);
1331 if (n != parg->count) {
1342 static void pp_close(CharDriverState *chr)
1344 ParallelCharDriver *drv = chr->opaque;
1347 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1348 ioctl(fd, PPRELEASE);
1351 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1354 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1356 const char *filename = qemu_opt_get(opts, "path");
1357 CharDriverState *chr;
1358 ParallelCharDriver *drv;
1361 TFR(fd = qemu_open(filename, O_RDWR));
1366 if (ioctl(fd, PPCLAIM) < 0) {
1371 drv = g_malloc0(sizeof(ParallelCharDriver));
1373 drv->mode = IEEE1284_MODE_COMPAT;
1375 chr = g_malloc0(sizeof(CharDriverState));
1376 chr->chr_write = null_chr_write;
1377 chr->chr_ioctl = pp_ioctl;
1378 chr->chr_close = pp_close;
1381 qemu_chr_generic_open(chr);
1385 #endif /* __linux__ */
1387 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1388 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1390 int fd = (int)(intptr_t)chr->opaque;
1394 case CHR_IOCTL_PP_READ_DATA:
1395 if (ioctl(fd, PPIGDATA, &b) < 0)
1397 *(uint8_t *)arg = b;
1399 case CHR_IOCTL_PP_WRITE_DATA:
1400 b = *(uint8_t *)arg;
1401 if (ioctl(fd, PPISDATA, &b) < 0)
1404 case CHR_IOCTL_PP_READ_CONTROL:
1405 if (ioctl(fd, PPIGCTRL, &b) < 0)
1407 *(uint8_t *)arg = b;
1409 case CHR_IOCTL_PP_WRITE_CONTROL:
1410 b = *(uint8_t *)arg;
1411 if (ioctl(fd, PPISCTRL, &b) < 0)
1414 case CHR_IOCTL_PP_READ_STATUS:
1415 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1417 *(uint8_t *)arg = b;
1425 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1427 const char *filename = qemu_opt_get(opts, "path");
1428 CharDriverState *chr;
1431 fd = qemu_open(filename, O_RDWR);
1436 chr = g_malloc0(sizeof(CharDriverState));
1437 chr->opaque = (void *)(intptr_t)fd;
1438 chr->chr_write = null_chr_write;
1439 chr->chr_ioctl = pp_ioctl;
1446 static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];
1450 HANDLE hcom, hrecv, hsend;
1451 OVERLAPPED orecv, osend;
1458 HANDLE hInputReadyEvent;
1459 HANDLE hInputDoneEvent;
1460 HANDLE hInputThread;
1461 uint8_t win_stdio_buf;
1462 } WinStdioCharState;
1464 #define NSENDBUF 2048
1465 #define NRECVBUF 2048
1466 #define MAXCONNECT 1
1467 #define NTIMEOUT 5000
1469 static int win_chr_poll(void *opaque);
1470 static int win_chr_pipe_poll(void *opaque);
1472 static void win_chr_close(CharDriverState *chr)
1474 WinCharState *s = chr->opaque;
1477 CloseHandle(s->hsend);
1481 CloseHandle(s->hrecv);
1485 CloseHandle(s->hcom);
1489 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1491 qemu_del_polling_cb(win_chr_poll, chr);
1493 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
1496 static int win_chr_init(CharDriverState *chr, const char *filename)
1498 WinCharState *s = chr->opaque;
1500 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1505 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1507 fprintf(stderr, "Failed CreateEvent\n");
1510 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1512 fprintf(stderr, "Failed CreateEvent\n");
1516 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1517 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1518 if (s->hcom == INVALID_HANDLE_VALUE) {
1519 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1524 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1525 fprintf(stderr, "Failed SetupComm\n");
1529 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1530 size = sizeof(COMMCONFIG);
1531 GetDefaultCommConfig(filename, &comcfg, &size);
1532 comcfg.dcb.DCBlength = sizeof(DCB);
1533 CommConfigDialog(filename, NULL, &comcfg);
1535 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1536 fprintf(stderr, "Failed SetCommState\n");
1540 if (!SetCommMask(s->hcom, EV_ERR)) {
1541 fprintf(stderr, "Failed SetCommMask\n");
1545 cto.ReadIntervalTimeout = MAXDWORD;
1546 if (!SetCommTimeouts(s->hcom, &cto)) {
1547 fprintf(stderr, "Failed SetCommTimeouts\n");
1551 if (!ClearCommError(s->hcom, &err, &comstat)) {
1552 fprintf(stderr, "Failed ClearCommError\n");
1555 qemu_add_polling_cb(win_chr_poll, chr);
1563 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1565 WinCharState *s = chr->opaque;
1566 DWORD len, ret, size, err;
1569 ZeroMemory(&s->osend, sizeof(s->osend));
1570 s->osend.hEvent = s->hsend;
1573 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1575 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1577 err = GetLastError();
1578 if (err == ERROR_IO_PENDING) {
1579 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1597 static int win_chr_read_poll(CharDriverState *chr)
1599 WinCharState *s = chr->opaque;
1601 s->max_size = qemu_chr_be_can_write(chr);
1605 static void win_chr_readfile(CharDriverState *chr)
1607 WinCharState *s = chr->opaque;
1609 uint8_t buf[READ_BUF_LEN];
1612 ZeroMemory(&s->orecv, sizeof(s->orecv));
1613 s->orecv.hEvent = s->hrecv;
1614 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1616 err = GetLastError();
1617 if (err == ERROR_IO_PENDING) {
1618 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1623 qemu_chr_be_write(chr, buf, size);
1627 static void win_chr_read(CharDriverState *chr)
1629 WinCharState *s = chr->opaque;
1631 if (s->len > s->max_size)
1632 s->len = s->max_size;
1636 win_chr_readfile(chr);
1639 static int win_chr_poll(void *opaque)
1641 CharDriverState *chr = opaque;
1642 WinCharState *s = chr->opaque;
1646 ClearCommError(s->hcom, &comerr, &status);
1647 if (status.cbInQue > 0) {
1648 s->len = status.cbInQue;
1649 win_chr_read_poll(chr);
1656 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1658 const char *filename = qemu_opt_get(opts, "path");
1659 CharDriverState *chr;
1662 chr = g_malloc0(sizeof(CharDriverState));
1663 s = g_malloc0(sizeof(WinCharState));
1665 chr->chr_write = win_chr_write;
1666 chr->chr_close = win_chr_close;
1668 if (win_chr_init(chr, filename) < 0) {
1673 qemu_chr_generic_open(chr);
1677 static int win_chr_pipe_poll(void *opaque)
1679 CharDriverState *chr = opaque;
1680 WinCharState *s = chr->opaque;
1683 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1686 win_chr_read_poll(chr);
1693 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1695 WinCharState *s = chr->opaque;
1703 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1705 fprintf(stderr, "Failed CreateEvent\n");
1708 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1710 fprintf(stderr, "Failed CreateEvent\n");
1714 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1715 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1716 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1718 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1719 if (s->hcom == INVALID_HANDLE_VALUE) {
1720 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1725 ZeroMemory(&ov, sizeof(ov));
1726 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1727 ret = ConnectNamedPipe(s->hcom, &ov);
1729 fprintf(stderr, "Failed ConnectNamedPipe\n");
1733 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1735 fprintf(stderr, "Failed GetOverlappedResult\n");
1737 CloseHandle(ov.hEvent);
1744 CloseHandle(ov.hEvent);
1747 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1756 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1758 const char *filename = qemu_opt_get(opts, "path");
1759 CharDriverState *chr;
1762 chr = g_malloc0(sizeof(CharDriverState));
1763 s = g_malloc0(sizeof(WinCharState));
1765 chr->chr_write = win_chr_write;
1766 chr->chr_close = win_chr_close;
1768 if (win_chr_pipe_init(chr, filename) < 0) {
1773 qemu_chr_generic_open(chr);
1777 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1779 CharDriverState *chr;
1782 chr = g_malloc0(sizeof(CharDriverState));
1783 s = g_malloc0(sizeof(WinCharState));
1786 chr->chr_write = win_chr_write;
1787 qemu_chr_generic_open(chr);
1791 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1793 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1796 static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
1798 const char *file_out = qemu_opt_get(opts, "path");
1801 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1802 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1803 if (fd_out == INVALID_HANDLE_VALUE) {
1807 return qemu_chr_open_win_file(fd_out);
1810 static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
1812 HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
1819 if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
1829 static void win_stdio_wait_func(void *opaque)
1831 CharDriverState *chr = opaque;
1832 WinStdioCharState *stdio = chr->opaque;
1833 INPUT_RECORD buf[4];
1838 ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf),
1842 /* Avoid error storm */
1843 qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
1847 for (i = 0; i < dwSize; i++) {
1848 KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
1850 if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
1852 if (kev->uChar.AsciiChar != 0) {
1853 for (j = 0; j < kev->wRepeatCount; j++) {
1854 if (qemu_chr_be_can_write(chr)) {
1855 uint8_t c = kev->uChar.AsciiChar;
1856 qemu_chr_be_write(chr, &c, 1);
1864 static DWORD WINAPI win_stdio_thread(LPVOID param)
1866 CharDriverState *chr = param;
1867 WinStdioCharState *stdio = chr->opaque;
1873 /* Wait for one byte */
1874 ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
1876 /* Exit in case of error, continue if nothing read */
1884 /* Some terminal emulator returns \r\n for Enter, just pass \n */
1885 if (stdio->win_stdio_buf == '\r') {
1889 /* Signal the main thread and wait until the byte was eaten */
1890 if (!SetEvent(stdio->hInputReadyEvent)) {
1893 if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
1899 qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
1903 static void win_stdio_thread_wait_func(void *opaque)
1905 CharDriverState *chr = opaque;
1906 WinStdioCharState *stdio = chr->opaque;
1908 if (qemu_chr_be_can_write(chr)) {
1909 qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
1912 SetEvent(stdio->hInputDoneEvent);
1915 static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo)
1917 WinStdioCharState *stdio = chr->opaque;
1920 GetConsoleMode(stdio->hStdIn, &dwMode);
1923 SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
1925 SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
1929 static void win_stdio_close(CharDriverState *chr)
1931 WinStdioCharState *stdio = chr->opaque;
1933 if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
1934 CloseHandle(stdio->hInputReadyEvent);
1936 if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
1937 CloseHandle(stdio->hInputDoneEvent);
1939 if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
1940 TerminateThread(stdio->hInputThread, 0);
1943 g_free(chr->opaque);
1948 static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
1950 CharDriverState *chr;
1951 WinStdioCharState *stdio;
1955 if (stdio_nb_clients >= STDIO_MAX_CLIENTS
1956 || ((display_type != DT_NOGRAPHIC) && (stdio_nb_clients != 0))) {
1960 chr = g_malloc0(sizeof(CharDriverState));
1961 stdio = g_malloc0(sizeof(WinStdioCharState));
1963 stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
1964 if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
1965 fprintf(stderr, "cannot open stdio: invalid handle\n");
1969 is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
1971 chr->opaque = stdio;
1972 chr->chr_write = win_stdio_write;
1973 chr->chr_close = win_stdio_close;
1975 if (stdio_nb_clients == 0) {
1977 if (qemu_add_wait_object(stdio->hStdIn,
1978 win_stdio_wait_func, chr)) {
1979 fprintf(stderr, "qemu_add_wait_object: failed\n");
1984 stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
1985 stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
1986 stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
1989 if (stdio->hInputThread == INVALID_HANDLE_VALUE
1990 || stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
1991 || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
1992 fprintf(stderr, "cannot create stdio thread or event\n");
1995 if (qemu_add_wait_object(stdio->hInputReadyEvent,
1996 win_stdio_thread_wait_func, chr)) {
1997 fprintf(stderr, "qemu_add_wait_object: failed\n");
2002 dwMode |= ENABLE_LINE_INPUT;
2004 stdio_clients[stdio_nb_clients++] = chr;
2005 if (stdio_nb_clients == 1 && is_console) {
2006 /* set the terminal in raw mode */
2007 /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
2008 dwMode |= ENABLE_PROCESSED_INPUT;
2011 SetConsoleMode(stdio->hStdIn, dwMode);
2013 chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
2014 qemu_chr_fe_set_echo(chr, false);
2018 #endif /* !_WIN32 */
2020 /***********************************************************/
2021 /* UDP Net console */
2025 uint8_t buf[READ_BUF_LEN];
2031 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2033 NetCharDriver *s = chr->opaque;
2035 return send(s->fd, (const void *)buf, len, 0);
2038 static int udp_chr_read_poll(void *opaque)
2040 CharDriverState *chr = opaque;
2041 NetCharDriver *s = chr->opaque;
2043 s->max_size = qemu_chr_be_can_write(chr);
2045 /* If there were any stray characters in the queue process them
2048 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2049 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2051 s->max_size = qemu_chr_be_can_write(chr);
2056 static void udp_chr_read(void *opaque)
2058 CharDriverState *chr = opaque;
2059 NetCharDriver *s = chr->opaque;
2061 if (s->max_size == 0)
2063 s->bufcnt = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0);
2064 s->bufptr = s->bufcnt;
2069 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
2070 qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
2072 s->max_size = qemu_chr_be_can_write(chr);
2076 static void udp_chr_update_read_handler(CharDriverState *chr)
2078 NetCharDriver *s = chr->opaque;
2081 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
2082 udp_chr_read, NULL, chr);
2086 static void udp_chr_close(CharDriverState *chr)
2088 NetCharDriver *s = chr->opaque;
2090 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2094 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2097 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
2099 CharDriverState *chr = NULL;
2100 NetCharDriver *s = NULL;
2101 Error *local_err = NULL;
2104 chr = g_malloc0(sizeof(CharDriverState));
2105 s = g_malloc0(sizeof(NetCharDriver));
2107 fd = inet_dgram_opts(opts, &local_err);
2116 chr->chr_write = udp_chr_write;
2117 chr->chr_update_read_handler = udp_chr_update_read_handler;
2118 chr->chr_close = udp_chr_close;
2123 qerror_report_err(local_err);
2124 error_free(local_err);
2134 /***********************************************************/
2135 /* TCP Net console */
2147 static void tcp_chr_accept(void *opaque);
2149 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2151 TCPCharDriver *s = chr->opaque;
2153 return send_all(s->fd, buf, len);
2155 /* XXX: indicate an error ? */
2160 static int tcp_chr_read_poll(void *opaque)
2162 CharDriverState *chr = opaque;
2163 TCPCharDriver *s = chr->opaque;
2166 s->max_size = qemu_chr_be_can_write(chr);
2171 #define IAC_BREAK 243
2172 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
2174 uint8_t *buf, int *size)
2176 /* Handle any telnet client's basic IAC options to satisfy char by
2177 * char mode with no echo. All IAC options will be removed from
2178 * the buf and the do_telnetopt variable will be used to track the
2179 * state of the width of the IAC information.
2181 * IAC commands come in sets of 3 bytes with the exception of the
2182 * "IAC BREAK" command and the double IAC.
2188 for (i = 0; i < *size; i++) {
2189 if (s->do_telnetopt > 1) {
2190 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
2191 /* Double IAC means send an IAC */
2195 s->do_telnetopt = 1;
2197 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
2198 /* Handle IAC break commands by sending a serial break */
2199 qemu_chr_be_event(chr, CHR_EVENT_BREAK);
2204 if (s->do_telnetopt >= 4) {
2205 s->do_telnetopt = 1;
2208 if ((unsigned char)buf[i] == IAC) {
2209 s->do_telnetopt = 2;
2220 static int tcp_get_msgfd(CharDriverState *chr)
2222 TCPCharDriver *s = chr->opaque;
2229 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2231 TCPCharDriver *s = chr->opaque;
2232 struct cmsghdr *cmsg;
2234 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2237 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2238 cmsg->cmsg_level != SOL_SOCKET ||
2239 cmsg->cmsg_type != SCM_RIGHTS)
2242 fd = *((int *)CMSG_DATA(cmsg));
2246 #ifndef MSG_CMSG_CLOEXEC
2247 qemu_set_cloexec(fd);
2255 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2257 TCPCharDriver *s = chr->opaque;
2258 struct msghdr msg = { NULL, };
2259 struct iovec iov[1];
2261 struct cmsghdr cmsg;
2262 char control[CMSG_SPACE(sizeof(int))];
2267 iov[0].iov_base = buf;
2268 iov[0].iov_len = len;
2272 msg.msg_control = &msg_control;
2273 msg.msg_controllen = sizeof(msg_control);
2275 #ifdef MSG_CMSG_CLOEXEC
2276 flags |= MSG_CMSG_CLOEXEC;
2278 ret = recvmsg(s->fd, &msg, flags);
2279 if (ret > 0 && s->is_unix) {
2280 unix_process_msgfd(chr, &msg);
2286 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2288 TCPCharDriver *s = chr->opaque;
2289 return qemu_recv(s->fd, buf, len, 0);
2293 static void tcp_chr_read(void *opaque)
2295 CharDriverState *chr = opaque;
2296 TCPCharDriver *s = chr->opaque;
2297 uint8_t buf[READ_BUF_LEN];
2300 if (!s->connected || s->max_size <= 0)
2303 if (len > s->max_size)
2305 size = tcp_chr_recv(chr, (void *)buf, len);
2307 /* connection closed */
2309 if (s->listen_fd >= 0) {
2310 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2312 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2315 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2316 } else if (size > 0) {
2317 if (s->do_telnetopt)
2318 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2320 qemu_chr_be_write(chr, buf, size);
2325 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2327 return qemu_chr_open_fd(eventfd, eventfd);
2331 static void tcp_chr_connect(void *opaque)
2333 CharDriverState *chr = opaque;
2334 TCPCharDriver *s = chr->opaque;
2338 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2339 tcp_chr_read, NULL, chr);
2341 qemu_chr_generic_open(chr);
2344 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2345 static void tcp_chr_telnet_init(int fd)
2348 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2349 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2350 send(fd, (char *)buf, 3, 0);
2351 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2352 send(fd, (char *)buf, 3, 0);
2353 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2354 send(fd, (char *)buf, 3, 0);
2355 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2356 send(fd, (char *)buf, 3, 0);
2359 static void socket_set_nodelay(int fd)
2362 setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
2365 static int tcp_chr_add_client(CharDriverState *chr, int fd)
2367 TCPCharDriver *s = chr->opaque;
2371 socket_set_nonblock(fd);
2373 socket_set_nodelay(fd);
2375 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
2376 tcp_chr_connect(chr);
2381 static void tcp_chr_accept(void *opaque)
2383 CharDriverState *chr = opaque;
2384 TCPCharDriver *s = chr->opaque;
2385 struct sockaddr_in saddr;
2387 struct sockaddr_un uaddr;
2389 struct sockaddr *addr;
2396 len = sizeof(uaddr);
2397 addr = (struct sockaddr *)&uaddr;
2401 len = sizeof(saddr);
2402 addr = (struct sockaddr *)&saddr;
2404 fd = qemu_accept(s->listen_fd, addr, &len);
2405 if (fd < 0 && errno != EINTR) {
2407 } else if (fd >= 0) {
2408 if (s->do_telnetopt)
2409 tcp_chr_telnet_init(fd);
2413 if (tcp_chr_add_client(chr, fd) < 0)
2417 static void tcp_chr_close(CharDriverState *chr)
2419 TCPCharDriver *s = chr->opaque;
2421 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
2424 if (s->listen_fd >= 0) {
2425 qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL);
2426 closesocket(s->listen_fd);
2429 qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
2432 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2434 CharDriverState *chr = NULL;
2435 TCPCharDriver *s = NULL;
2436 Error *local_err = NULL;
2444 is_listen = qemu_opt_get_bool(opts, "server", 0);
2445 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2446 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2447 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2448 is_unix = qemu_opt_get(opts, "path") != NULL;
2452 chr = g_malloc0(sizeof(CharDriverState));
2453 s = g_malloc0(sizeof(TCPCharDriver));
2457 fd = unix_listen_opts(opts, &local_err);
2459 fd = unix_connect_opts(opts, &local_err, NULL, NULL);
2463 fd = inet_listen_opts(opts, 0, &local_err);
2465 fd = inet_connect_opts(opts, &local_err, NULL, NULL);
2472 if (!is_waitconnect)
2473 socket_set_nonblock(fd);
2479 s->is_unix = is_unix;
2480 s->do_nodelay = do_nodelay && !is_unix;
2483 chr->chr_write = tcp_chr_write;
2484 chr->chr_close = tcp_chr_close;
2485 chr->get_msgfd = tcp_get_msgfd;
2486 chr->chr_add_client = tcp_chr_add_client;
2490 qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
2492 s->do_telnetopt = 1;
2497 socket_set_nodelay(fd);
2498 tcp_chr_connect(chr);
2501 /* for "info chardev" monitor command */
2502 chr->filename = g_malloc(256);
2504 snprintf(chr->filename, 256, "unix:%s%s",
2505 qemu_opt_get(opts, "path"),
2506 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2507 } else if (is_telnet) {
2508 snprintf(chr->filename, 256, "telnet:%s:%s%s",
2509 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2510 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2512 snprintf(chr->filename, 256, "tcp:%s:%s%s",
2513 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2514 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2517 if (is_listen && is_waitconnect) {
2518 printf("QEMU waiting for connection on: %s\n",
2520 tcp_chr_accept(chr);
2521 socket_set_nonblock(s->listen_fd);
2527 qerror_report_err(local_err);
2528 error_free(local_err);
2538 /***********************************************************/
2539 /* Memory chardev */
2542 size_t outbuf_capacity;
2546 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2548 MemoryDriver *d = chr->opaque;
2550 /* TODO: the QString implementation has the same code, we should
2551 * introduce a generic way to do this in cutils.c */
2552 if (d->outbuf_capacity < d->outbuf_size + len) {
2554 d->outbuf_capacity += len;
2555 d->outbuf_capacity *= 2;
2556 d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity);
2559 memcpy(d->outbuf + d->outbuf_size, buf, len);
2560 d->outbuf_size += len;
2565 void qemu_chr_init_mem(CharDriverState *chr)
2569 d = g_malloc(sizeof(*d));
2571 d->outbuf_capacity = 4096;
2572 d->outbuf = g_malloc0(d->outbuf_capacity);
2574 memset(chr, 0, sizeof(*chr));
2576 chr->chr_write = mem_chr_write;
2579 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2581 MemoryDriver *d = chr->opaque;
2582 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2585 /* NOTE: this driver can not be closed with qemu_chr_delete()! */
2586 void qemu_chr_close_mem(CharDriverState *chr)
2588 MemoryDriver *d = chr->opaque;
2591 g_free(chr->opaque);
2593 chr->chr_write = NULL;
2596 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2598 const MemoryDriver *d = chr->opaque;
2599 return d->outbuf_size;
2602 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2604 char host[65], port[33], width[8], height[8];
2608 Error *local_err = NULL;
2610 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
2611 if (error_is_set(&local_err)) {
2612 qerror_report_err(local_err);
2613 error_free(local_err);
2617 if (strstart(filename, "mon:", &p)) {
2619 qemu_opt_set(opts, "mux", "on");
2622 if (strcmp(filename, "null") == 0 ||
2623 strcmp(filename, "pty") == 0 ||
2624 strcmp(filename, "msmouse") == 0 ||
2625 strcmp(filename, "braille") == 0 ||
2626 strcmp(filename, "stdio") == 0) {
2627 qemu_opt_set(opts, "backend", filename);
2630 if (strstart(filename, "vc", &p)) {
2631 qemu_opt_set(opts, "backend", "vc");
2633 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2635 qemu_opt_set(opts, "width", width);
2636 qemu_opt_set(opts, "height", height);
2637 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2639 qemu_opt_set(opts, "cols", width);
2640 qemu_opt_set(opts, "rows", height);
2647 if (strcmp(filename, "con:") == 0) {
2648 qemu_opt_set(opts, "backend", "console");
2651 if (strstart(filename, "COM", NULL)) {
2652 qemu_opt_set(opts, "backend", "serial");
2653 qemu_opt_set(opts, "path", filename);
2656 if (strstart(filename, "file:", &p)) {
2657 qemu_opt_set(opts, "backend", "file");
2658 qemu_opt_set(opts, "path", p);
2661 if (strstart(filename, "pipe:", &p)) {
2662 qemu_opt_set(opts, "backend", "pipe");
2663 qemu_opt_set(opts, "path", p);
2666 if (strstart(filename, "tcp:", &p) ||
2667 strstart(filename, "telnet:", &p)) {
2668 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2670 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2673 qemu_opt_set(opts, "backend", "socket");
2674 qemu_opt_set(opts, "host", host);
2675 qemu_opt_set(opts, "port", port);
2676 if (p[pos] == ',') {
2677 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2680 if (strstart(filename, "telnet:", &p))
2681 qemu_opt_set(opts, "telnet", "on");
2684 if (strstart(filename, "udp:", &p)) {
2685 qemu_opt_set(opts, "backend", "udp");
2686 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2688 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
2692 qemu_opt_set(opts, "host", host);
2693 qemu_opt_set(opts, "port", port);
2694 if (p[pos] == '@') {
2696 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2698 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2702 qemu_opt_set(opts, "localaddr", host);
2703 qemu_opt_set(opts, "localport", port);
2707 if (strstart(filename, "unix:", &p)) {
2708 qemu_opt_set(opts, "backend", "socket");
2709 if (qemu_opts_do_parse(opts, p, "path") != 0)
2713 if (strstart(filename, "/dev/parport", NULL) ||
2714 strstart(filename, "/dev/ppi", NULL)) {
2715 qemu_opt_set(opts, "backend", "parport");
2716 qemu_opt_set(opts, "path", filename);
2719 if (strstart(filename, "/dev/", NULL)) {
2720 qemu_opt_set(opts, "backend", "tty");
2721 qemu_opt_set(opts, "path", filename);
2726 qemu_opts_del(opts);
2730 static const struct {
2732 CharDriverState *(*open)(QemuOpts *opts);
2733 } backend_table[] = {
2734 { .name = "null", .open = qemu_chr_open_null },
2735 { .name = "socket", .open = qemu_chr_open_socket },
2736 { .name = "udp", .open = qemu_chr_open_udp },
2737 { .name = "msmouse", .open = qemu_chr_open_msmouse },
2738 { .name = "vc", .open = text_console_init },
2740 { .name = "file", .open = qemu_chr_open_win_file_out },
2741 { .name = "pipe", .open = qemu_chr_open_win_pipe },
2742 { .name = "console", .open = qemu_chr_open_win_con },
2743 { .name = "serial", .open = qemu_chr_open_win },
2744 { .name = "stdio", .open = qemu_chr_open_win_stdio },
2746 { .name = "file", .open = qemu_chr_open_file_out },
2747 { .name = "pipe", .open = qemu_chr_open_pipe },
2748 { .name = "pty", .open = qemu_chr_open_pty },
2749 { .name = "stdio", .open = qemu_chr_open_stdio },
2751 #ifdef CONFIG_BRLAPI
2752 { .name = "braille", .open = chr_baum_init },
2754 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2755 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
2756 || defined(__FreeBSD_kernel__)
2757 { .name = "tty", .open = qemu_chr_open_tty },
2759 #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
2760 || defined(__FreeBSD_kernel__)
2761 { .name = "parport", .open = qemu_chr_open_pp },
2764 { .name = "spicevmc", .open = qemu_chr_open_spice },
2765 #if SPICE_SERVER_VERSION >= 0x000c02
2766 { .name = "spiceport", .open = qemu_chr_open_spice_port },
2771 CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
2772 void (*init)(struct CharDriverState *s))
2774 CharDriverState *chr;
2777 if (qemu_opts_id(opts) == NULL) {
2778 fprintf(stderr, "chardev: no id specified\n");
2782 if (qemu_opt_get(opts, "backend") == NULL) {
2783 fprintf(stderr, "chardev: \"%s\" missing backend\n",
2784 qemu_opts_id(opts));
2787 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
2788 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
2791 if (i == ARRAY_SIZE(backend_table)) {
2792 fprintf(stderr, "chardev: backend \"%s\" not found\n",
2793 qemu_opt_get(opts, "backend"));
2797 chr = backend_table[i].open(opts);
2799 fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
2800 qemu_opt_get(opts, "backend"));
2805 chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
2807 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2809 if (qemu_opt_get_bool(opts, "mux", 0)) {
2810 CharDriverState *base = chr;
2811 int len = strlen(qemu_opts_id(opts)) + 6;
2812 base->label = g_malloc(len);
2813 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
2814 chr = qemu_chr_open_mux(base);
2815 chr->filename = base->filename;
2816 chr->avail_connections = MAX_MUX;
2817 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2819 chr->avail_connections = 1;
2821 chr->label = g_strdup(qemu_opts_id(opts));
2825 CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
2828 CharDriverState *chr;
2831 if (strstart(filename, "chardev:", &p)) {
2832 return qemu_chr_find(p);
2835 opts = qemu_chr_parse_compat(label, filename);
2839 chr = qemu_chr_new_from_opts(opts, init);
2840 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
2841 monitor_init(chr, MONITOR_USE_READLINE);
2843 qemu_opts_del(opts);
2847 void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
2849 if (chr->chr_set_echo) {
2850 chr->chr_set_echo(chr, echo);
2854 void qemu_chr_fe_open(struct CharDriverState *chr)
2856 if (chr->chr_guest_open) {
2857 chr->chr_guest_open(chr);
2861 void qemu_chr_fe_close(struct CharDriverState *chr)
2863 if (chr->chr_guest_close) {
2864 chr->chr_guest_close(chr);
2868 void qemu_chr_delete(CharDriverState *chr)
2870 QTAILQ_REMOVE(&chardevs, chr, next);
2872 chr->chr_close(chr);
2873 g_free(chr->filename);
2878 ChardevInfoList *qmp_query_chardev(Error **errp)
2880 ChardevInfoList *chr_list = NULL;
2881 CharDriverState *chr;
2883 QTAILQ_FOREACH(chr, &chardevs, next) {
2884 ChardevInfoList *info = g_malloc0(sizeof(*info));
2885 info->value = g_malloc0(sizeof(*info->value));
2886 info->value->label = g_strdup(chr->label);
2887 info->value->filename = g_strdup(chr->filename);
2889 info->next = chr_list;
2896 CharDriverState *qemu_chr_find(const char *name)
2898 CharDriverState *chr;
2900 QTAILQ_FOREACH(chr, &chardevs, next) {
2901 if (strcmp(chr->label, name) != 0)
2908 /* Get a character (serial) device interface. */
2909 CharDriverState *qemu_char_get_next_serial(void)
2911 static int next_serial;
2913 /* FIXME: This function needs to go away: use chardev properties! */
2914 return serial_hds[next_serial++];