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"
34 #include "hw/msmouse.h"
45 #include <sys/times.h>
49 #include <sys/ioctl.h>
50 #include <sys/resource.h>
51 #include <sys/socket.h>
52 #include <netinet/in.h>
55 #include <net/if_tap.h>
58 #include <linux/if_tun.h>
60 #include <arpa/inet.h>
63 #include <sys/select.h>
68 #include <dev/ppbus/ppi.h>
69 #include <dev/ppbus/ppbconf.h>
70 #elif defined(__DragonFly__)
72 #include <dev/misc/ppi/ppi.h>
73 #include <bus/ppbus/ppbconf.h>
77 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
78 #include <freebsd/stdlib.h>
83 #include <linux/ppdev.h>
84 #include <linux/parport.h>
88 #include <sys/ethernet.h>
89 #include <sys/sockio.h>
90 #include <netinet/arp.h>
91 #include <netinet/in.h>
92 #include <netinet/in_systm.h>
93 #include <netinet/ip.h>
94 #include <netinet/ip_icmp.h> // must come after ip.h
95 #include <netinet/udp.h>
96 #include <netinet/tcp.h>
104 #include "qemu_socket.h"
106 /***********************************************************/
107 /* character device */
109 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
110 QTAILQ_HEAD_INITIALIZER(chardevs);
111 static int initial_reset_issued;
113 static void qemu_chr_event(CharDriverState *s, int event)
117 s->chr_event(s->handler_opaque, event);
120 static void qemu_chr_reset_bh(void *opaque)
122 CharDriverState *s = opaque;
123 qemu_chr_event(s, CHR_EVENT_RESET);
124 qemu_bh_delete(s->bh);
128 void qemu_chr_reset(CharDriverState *s)
130 if (s->bh == NULL && initial_reset_issued) {
131 s->bh = qemu_bh_new(qemu_chr_reset_bh, s);
132 qemu_bh_schedule(s->bh);
136 void qemu_chr_initial_reset(void)
138 CharDriverState *chr;
140 initial_reset_issued = 1;
142 QTAILQ_FOREACH(chr, &chardevs, next) {
147 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
149 return s->chr_write(s, buf, len);
152 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg)
156 return s->chr_ioctl(s, cmd, arg);
159 int qemu_chr_can_read(CharDriverState *s)
161 if (!s->chr_can_read)
163 return s->chr_can_read(s->handler_opaque);
166 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len)
168 s->chr_read(s->handler_opaque, buf, len);
171 int qemu_chr_get_msgfd(CharDriverState *s)
173 return s->get_msgfd ? s->get_msgfd(s) : -1;
176 void qemu_chr_accept_input(CharDriverState *s)
178 if (s->chr_accept_input)
179 s->chr_accept_input(s);
182 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
187 vsnprintf(buf, sizeof(buf), fmt, ap);
188 qemu_chr_write(s, (uint8_t *)buf, strlen(buf));
192 void qemu_chr_send_event(CharDriverState *s, int event)
194 if (s->chr_send_event)
195 s->chr_send_event(s, event);
198 void qemu_chr_add_handlers(CharDriverState *s,
199 IOCanRWHandler *fd_can_read,
200 IOReadHandler *fd_read,
201 IOEventHandler *fd_event,
204 s->chr_can_read = fd_can_read;
205 s->chr_read = fd_read;
206 s->chr_event = fd_event;
207 s->handler_opaque = opaque;
208 if (s->chr_update_read_handler)
209 s->chr_update_read_handler(s);
212 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
217 static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
219 CharDriverState *chr;
221 chr = qemu_mallocz(sizeof(CharDriverState));
222 chr->chr_write = null_chr_write;
226 /* MUX driver for serial I/O splitting */
228 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
229 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
231 IOCanRWHandler *chr_can_read[MAX_MUX];
232 IOReadHandler *chr_read[MAX_MUX];
233 IOEventHandler *chr_event[MAX_MUX];
234 void *ext_opaque[MAX_MUX];
235 CharDriverState *drv;
240 /* Intermediate input buffer allows to catch escape sequences even if the
241 currently active device is not accepting any input - but only until it
243 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
248 int64_t timestamps_start;
252 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
254 MuxDriver *d = chr->opaque;
256 if (!d->timestamps) {
257 ret = d->drv->chr_write(d->drv, buf, len);
262 for (i = 0; i < len; i++) {
268 ti = qemu_get_clock(rt_clock);
269 if (d->timestamps_start == -1)
270 d->timestamps_start = ti;
271 ti -= d->timestamps_start;
273 snprintf(buf1, sizeof(buf1),
274 "[%02d:%02d:%02d.%03d] ",
279 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
282 ret += d->drv->chr_write(d->drv, buf+i, 1);
283 if (buf[i] == '\n') {
291 static const char * const mux_help[] = {
292 "% h print this help\n\r",
293 "% x exit emulator\n\r",
294 "% s save disk data back to file (if -snapshot)\n\r",
295 "% t toggle console timestamps\n\r"
296 "% b send break (magic sysrq)\n\r",
297 "% c switch between console and monitor\n\r",
302 int term_escape_char = 0x01; /* ctrl-a is used for escape */
303 static void mux_print_help(CharDriverState *chr)
306 char ebuf[15] = "Escape-Char";
307 char cbuf[50] = "\n\r";
309 if (term_escape_char > 0 && term_escape_char < 26) {
310 snprintf(cbuf, sizeof(cbuf), "\n\r");
311 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
313 snprintf(cbuf, sizeof(cbuf),
314 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
317 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
318 for (i = 0; mux_help[i] != NULL; i++) {
319 for (j=0; mux_help[i][j] != '\0'; j++) {
320 if (mux_help[i][j] == '%')
321 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
323 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
328 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
330 if (d->chr_event[mux_nr])
331 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
334 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
336 if (d->term_got_escape) {
337 d->term_got_escape = 0;
338 if (ch == term_escape_char)
347 const char *term = "QEMU: Terminated\n\r";
348 chr->chr_write(chr,(uint8_t *)term,strlen(term));
355 QTAILQ_FOREACH(dinfo, &drives, next) {
356 bdrv_commit(dinfo->bdrv);
361 qemu_chr_event(chr, CHR_EVENT_BREAK);
364 /* Switch to the next registered device */
365 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
367 if (d->focus >= d->mux_cnt)
369 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
372 d->timestamps = !d->timestamps;
373 d->timestamps_start = -1;
377 } else if (ch == term_escape_char) {
378 d->term_got_escape = 1;
386 static void mux_chr_accept_input(CharDriverState *chr)
388 MuxDriver *d = chr->opaque;
391 while (d->prod[m] != d->cons[m] &&
392 d->chr_can_read[m] &&
393 d->chr_can_read[m](d->ext_opaque[m])) {
394 d->chr_read[m](d->ext_opaque[m],
395 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
399 static int mux_chr_can_read(void *opaque)
401 CharDriverState *chr = opaque;
402 MuxDriver *d = chr->opaque;
405 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
407 if (d->chr_can_read[m])
408 return d->chr_can_read[m](d->ext_opaque[m]);
412 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
414 CharDriverState *chr = opaque;
415 MuxDriver *d = chr->opaque;
419 mux_chr_accept_input (opaque);
421 for(i = 0; i < size; i++)
422 if (mux_proc_byte(chr, d, buf[i])) {
423 if (d->prod[m] == d->cons[m] &&
424 d->chr_can_read[m] &&
425 d->chr_can_read[m](d->ext_opaque[m]))
426 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
428 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
432 static void mux_chr_event(void *opaque, int event)
434 CharDriverState *chr = opaque;
435 MuxDriver *d = chr->opaque;
438 /* Send the event to all registered listeners */
439 for (i = 0; i < d->mux_cnt; i++)
440 mux_chr_send_event(d, i, event);
443 static void mux_chr_update_read_handler(CharDriverState *chr)
445 MuxDriver *d = chr->opaque;
447 if (d->mux_cnt >= MAX_MUX) {
448 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
451 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
452 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
453 d->chr_read[d->mux_cnt] = chr->chr_read;
454 d->chr_event[d->mux_cnt] = chr->chr_event;
455 /* Fix up the real driver with mux routines */
456 if (d->mux_cnt == 0) {
457 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
460 if (d->focus != -1) {
461 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
463 d->focus = d->mux_cnt;
465 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
468 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
470 CharDriverState *chr;
473 chr = qemu_mallocz(sizeof(CharDriverState));
474 d = qemu_mallocz(sizeof(MuxDriver));
479 chr->chr_write = mux_chr_write;
480 chr->chr_update_read_handler = mux_chr_update_read_handler;
481 chr->chr_accept_input = mux_chr_accept_input;
487 int send_all(int fd, const void *buf, int len1)
493 ret = send(fd, buf, len, 0);
495 errno = WSAGetLastError();
496 if (errno != WSAEWOULDBLOCK) {
499 } else if (ret == 0) {
511 static int unix_write(int fd, const uint8_t *buf, int len1)
517 ret = write(fd, buf, len);
519 if (errno != EINTR && errno != EAGAIN)
521 } else if (ret == 0) {
531 int send_all(int fd, const void *buf, int len1)
533 return unix_write(fd, buf, len1);
544 #define STDIO_MAX_CLIENTS 1
545 static int stdio_nb_clients = 0;
547 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
549 FDCharDriver *s = chr->opaque;
550 return send_all(s->fd_out, buf, len);
553 static int fd_chr_read_poll(void *opaque)
555 CharDriverState *chr = opaque;
556 FDCharDriver *s = chr->opaque;
558 s->max_size = qemu_chr_can_read(chr);
562 static void fd_chr_read(void *opaque)
564 CharDriverState *chr = opaque;
565 FDCharDriver *s = chr->opaque;
570 if (len > s->max_size)
574 size = read(s->fd_in, buf, len);
576 /* FD has been closed. Remove it from the active list. */
577 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
578 qemu_chr_event(chr, CHR_EVENT_CLOSED);
582 qemu_chr_read(chr, buf, size);
586 static void fd_chr_update_read_handler(CharDriverState *chr)
588 FDCharDriver *s = chr->opaque;
591 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
593 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
594 fd_chr_read, NULL, chr);
599 static void fd_chr_close(struct CharDriverState *chr)
601 FDCharDriver *s = chr->opaque;
604 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
606 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
611 qemu_chr_event(chr, CHR_EVENT_CLOSED);
614 /* open a character device to a unix fd */
615 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
617 CharDriverState *chr;
620 chr = qemu_mallocz(sizeof(CharDriverState));
621 s = qemu_mallocz(sizeof(FDCharDriver));
625 chr->chr_write = fd_chr_write;
626 chr->chr_update_read_handler = fd_chr_update_read_handler;
627 chr->chr_close = fd_chr_close;
634 static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
638 TFR(fd_out = open(qemu_opt_get(opts, "path"),
639 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
642 return qemu_chr_open_fd(-1, fd_out);
645 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
648 char filename_in[256], filename_out[256];
649 const char *filename = qemu_opt_get(opts, "path");
651 if (filename == NULL) {
652 fprintf(stderr, "chardev: pipe: no filename given\n");
656 snprintf(filename_in, 256, "%s.in", filename);
657 snprintf(filename_out, 256, "%s.out", filename);
658 TFR(fd_in = open(filename_in, O_RDWR | O_BINARY));
659 TFR(fd_out = open(filename_out, O_RDWR | O_BINARY));
660 if (fd_in < 0 || fd_out < 0) {
665 TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY));
669 return qemu_chr_open_fd(fd_in, fd_out);
673 /* for STDIO, we handle the case where several clients use it
676 #define TERM_FIFO_MAX_SIZE 1
678 static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
679 static int term_fifo_size;
681 static int stdio_read_poll(void *opaque)
683 CharDriverState *chr = opaque;
685 /* try to flush the queue if needed */
686 if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) {
687 qemu_chr_read(chr, term_fifo, 1);
690 /* see if we can absorb more chars */
691 if (term_fifo_size == 0)
697 static void stdio_read(void *opaque)
701 CharDriverState *chr = opaque;
703 size = read(0, buf, 1);
705 /* stdin has been closed. Remove it from the active list. */
706 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
707 qemu_chr_event(chr, CHR_EVENT_CLOSED);
711 if (qemu_chr_can_read(chr) > 0) {
712 qemu_chr_read(chr, buf, 1);
713 } else if (term_fifo_size == 0) {
714 term_fifo[term_fifo_size++] = buf[0];
719 /* init terminal so that we can grab keys */
720 static struct termios oldtty;
721 static int old_fd0_flags;
722 static int term_atexit_done;
724 static void term_exit(void)
726 tcsetattr (0, TCSANOW, &oldtty);
727 fcntl(0, F_SETFL, old_fd0_flags);
730 static void term_init(void)
736 old_fd0_flags = fcntl(0, F_GETFL);
738 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
739 |INLCR|IGNCR|ICRNL|IXON);
740 tty.c_oflag |= OPOST;
741 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
742 /* if graphical mode, we allow Ctrl-C handling */
743 if (display_type == DT_NOGRAPHIC)
744 tty.c_lflag &= ~ISIG;
745 tty.c_cflag &= ~(CSIZE|PARENB);
750 tcsetattr (0, TCSANOW, &tty);
752 if (!term_atexit_done++)
755 fcntl(0, F_SETFL, O_NONBLOCK);
758 static void qemu_chr_close_stdio(struct CharDriverState *chr)
762 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
766 static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
768 CharDriverState *chr;
770 if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
772 chr = qemu_chr_open_fd(0, 1);
773 chr->chr_close = qemu_chr_close_stdio;
774 qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
782 /* Once Solaris has openpty(), this is going to be removed. */
783 static int openpty(int *amaster, int *aslave, char *name,
784 struct termios *termp, struct winsize *winp)
787 int mfd = -1, sfd = -1;
789 *amaster = *aslave = -1;
791 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
795 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
798 if ((slave = ptsname(mfd)) == NULL)
801 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
804 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
805 (termp != NULL && tcgetattr(sfd, termp) < 0))
813 ioctl(sfd, TIOCSWINSZ, winp);
824 static void cfmakeraw (struct termios *termios_p)
826 termios_p->c_iflag &=
827 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
828 termios_p->c_oflag &= ~OPOST;
829 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
830 termios_p->c_cflag &= ~(CSIZE|PARENB);
831 termios_p->c_cflag |= CS8;
833 termios_p->c_cc[VMIN] = 0;
834 termios_p->c_cc[VTIME] = 0;
838 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
839 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
849 static void pty_chr_update_read_handler(CharDriverState *chr);
850 static void pty_chr_state(CharDriverState *chr, int connected);
852 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
854 PtyCharDriver *s = chr->opaque;
857 /* guest sends data, check for (re-)connect */
858 pty_chr_update_read_handler(chr);
861 return send_all(s->fd, buf, len);
864 static int pty_chr_read_poll(void *opaque)
866 CharDriverState *chr = opaque;
867 PtyCharDriver *s = chr->opaque;
869 s->read_bytes = qemu_chr_can_read(chr);
870 return s->read_bytes;
873 static void pty_chr_read(void *opaque)
875 CharDriverState *chr = opaque;
876 PtyCharDriver *s = chr->opaque;
881 if (len > s->read_bytes)
885 size = read(s->fd, buf, len);
886 if ((size == -1 && errno == EIO) ||
888 pty_chr_state(chr, 0);
892 pty_chr_state(chr, 1);
893 qemu_chr_read(chr, buf, size);
897 static void pty_chr_update_read_handler(CharDriverState *chr)
899 PtyCharDriver *s = chr->opaque;
901 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
902 pty_chr_read, NULL, chr);
905 * Short timeout here: just need wait long enougth that qemu makes
906 * it through the poll loop once. When reconnected we want a
907 * short timeout so we notice it almost instantly. Otherwise
908 * read() gives us -EIO instantly, making pty_chr_state() reset the
909 * timeout to the normal (much longer) poll interval before the
912 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
915 static void pty_chr_state(CharDriverState *chr, int connected)
917 PtyCharDriver *s = chr->opaque;
920 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
923 /* (re-)connect poll interval for idle guests: once per second.
924 * We check more frequently in case the guests sends data to
925 * the virtual device linked to our pty. */
926 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
934 static void pty_chr_timer(void *opaque)
936 struct CharDriverState *chr = opaque;
937 PtyCharDriver *s = chr->opaque;
942 /* If we arrive here without polling being cleared due
943 * read returning -EIO, then we are (re-)connected */
944 pty_chr_state(chr, 1);
949 pty_chr_update_read_handler(chr);
952 static void pty_chr_close(struct CharDriverState *chr)
954 PtyCharDriver *s = chr->opaque;
956 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
958 qemu_del_timer(s->timer);
959 qemu_free_timer(s->timer);
961 qemu_chr_event(chr, CHR_EVENT_CLOSED);
964 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
966 CharDriverState *chr;
970 #if defined(__OpenBSD__) || defined(__DragonFly__)
971 char pty_name[PATH_MAX];
972 #define q_ptsname(x) pty_name
974 char *pty_name = NULL;
975 #define q_ptsname(x) ptsname(x)
978 chr = qemu_mallocz(sizeof(CharDriverState));
979 s = qemu_mallocz(sizeof(PtyCharDriver));
981 if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) {
985 /* Set raw attributes on the pty. */
986 tcgetattr(slave_fd, &tty);
988 tcsetattr(slave_fd, TCSAFLUSH, &tty);
991 len = strlen(q_ptsname(s->fd)) + 5;
992 chr->filename = qemu_malloc(len);
993 snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
994 qemu_opt_set(opts, "path", q_ptsname(s->fd));
995 fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
998 chr->chr_write = pty_chr_write;
999 chr->chr_update_read_handler = pty_chr_update_read_handler;
1000 chr->chr_close = pty_chr_close;
1002 s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr);
1007 static void tty_serial_init(int fd, int speed,
1008 int parity, int data_bits, int stop_bits)
1014 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1015 speed, parity, data_bits, stop_bits);
1017 tcgetattr (fd, &tty);
1020 if (speed <= 50 * MARGIN)
1022 else if (speed <= 75 * MARGIN)
1024 else if (speed <= 300 * MARGIN)
1026 else if (speed <= 600 * MARGIN)
1028 else if (speed <= 1200 * MARGIN)
1030 else if (speed <= 2400 * MARGIN)
1032 else if (speed <= 4800 * MARGIN)
1034 else if (speed <= 9600 * MARGIN)
1036 else if (speed <= 19200 * MARGIN)
1038 else if (speed <= 38400 * MARGIN)
1040 else if (speed <= 57600 * MARGIN)
1042 else if (speed <= 115200 * MARGIN)
1047 cfsetispeed(&tty, spd);
1048 cfsetospeed(&tty, spd);
1050 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1051 |INLCR|IGNCR|ICRNL|IXON);
1052 tty.c_oflag |= OPOST;
1053 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1054 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1075 tty.c_cflag |= PARENB;
1078 tty.c_cflag |= PARENB | PARODD;
1082 tty.c_cflag |= CSTOPB;
1084 tcsetattr (fd, TCSANOW, &tty);
1087 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1089 FDCharDriver *s = chr->opaque;
1092 case CHR_IOCTL_SERIAL_SET_PARAMS:
1094 QEMUSerialSetParams *ssp = arg;
1095 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1096 ssp->data_bits, ssp->stop_bits);
1099 case CHR_IOCTL_SERIAL_SET_BREAK:
1101 int enable = *(int *)arg;
1103 tcsendbreak(s->fd_in, 1);
1106 case CHR_IOCTL_SERIAL_GET_TIOCM:
1109 int *targ = (int *)arg;
1110 ioctl(s->fd_in, TIOCMGET, &sarg);
1112 if (sarg & TIOCM_CTS)
1113 *targ |= CHR_TIOCM_CTS;
1114 if (sarg & TIOCM_CAR)
1115 *targ |= CHR_TIOCM_CAR;
1116 if (sarg & TIOCM_DSR)
1117 *targ |= CHR_TIOCM_DSR;
1118 if (sarg & TIOCM_RI)
1119 *targ |= CHR_TIOCM_RI;
1120 if (sarg & TIOCM_DTR)
1121 *targ |= CHR_TIOCM_DTR;
1122 if (sarg & TIOCM_RTS)
1123 *targ |= CHR_TIOCM_RTS;
1126 case CHR_IOCTL_SERIAL_SET_TIOCM:
1128 int sarg = *(int *)arg;
1130 ioctl(s->fd_in, TIOCMGET, &targ);
1131 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1132 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1133 if (sarg & CHR_TIOCM_CTS)
1135 if (sarg & CHR_TIOCM_CAR)
1137 if (sarg & CHR_TIOCM_DSR)
1139 if (sarg & CHR_TIOCM_RI)
1141 if (sarg & CHR_TIOCM_DTR)
1143 if (sarg & CHR_TIOCM_RTS)
1145 ioctl(s->fd_in, TIOCMSET, &targ);
1154 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1156 const char *filename = qemu_opt_get(opts, "path");
1157 CharDriverState *chr;
1160 TFR(fd = open(filename, O_RDWR | O_NONBLOCK));
1161 tty_serial_init(fd, 115200, 'N', 8, 1);
1162 chr = qemu_chr_open_fd(fd, fd);
1167 chr->chr_ioctl = tty_serial_ioctl;
1168 qemu_chr_reset(chr);
1171 #else /* ! __linux__ && ! __sun__ */
1172 static CharDriverState *qemu_chr_open_pty(void)
1176 #endif /* __linux__ || __sun__ */
1178 #if defined(__linux__)
1182 } ParallelCharDriver;
1184 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1186 if (s->mode != mode) {
1188 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1195 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1197 ParallelCharDriver *drv = chr->opaque;
1202 case CHR_IOCTL_PP_READ_DATA:
1203 if (ioctl(fd, PPRDATA, &b) < 0)
1205 *(uint8_t *)arg = b;
1207 case CHR_IOCTL_PP_WRITE_DATA:
1208 b = *(uint8_t *)arg;
1209 if (ioctl(fd, PPWDATA, &b) < 0)
1212 case CHR_IOCTL_PP_READ_CONTROL:
1213 if (ioctl(fd, PPRCONTROL, &b) < 0)
1215 /* Linux gives only the lowest bits, and no way to know data
1216 direction! For better compatibility set the fixed upper
1218 *(uint8_t *)arg = b | 0xc0;
1220 case CHR_IOCTL_PP_WRITE_CONTROL:
1221 b = *(uint8_t *)arg;
1222 if (ioctl(fd, PPWCONTROL, &b) < 0)
1225 case CHR_IOCTL_PP_READ_STATUS:
1226 if (ioctl(fd, PPRSTATUS, &b) < 0)
1228 *(uint8_t *)arg = b;
1230 case CHR_IOCTL_PP_DATA_DIR:
1231 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1234 case CHR_IOCTL_PP_EPP_READ_ADDR:
1235 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1236 struct ParallelIOArg *parg = arg;
1237 int n = read(fd, parg->buffer, parg->count);
1238 if (n != parg->count) {
1243 case CHR_IOCTL_PP_EPP_READ:
1244 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1245 struct ParallelIOArg *parg = arg;
1246 int n = read(fd, parg->buffer, parg->count);
1247 if (n != parg->count) {
1252 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1253 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1254 struct ParallelIOArg *parg = arg;
1255 int n = write(fd, parg->buffer, parg->count);
1256 if (n != parg->count) {
1261 case CHR_IOCTL_PP_EPP_WRITE:
1262 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1263 struct ParallelIOArg *parg = arg;
1264 int n = write(fd, parg->buffer, parg->count);
1265 if (n != parg->count) {
1276 static void pp_close(CharDriverState *chr)
1278 ParallelCharDriver *drv = chr->opaque;
1281 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1282 ioctl(fd, PPRELEASE);
1285 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1288 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1290 const char *filename = qemu_opt_get(opts, "path");
1291 CharDriverState *chr;
1292 ParallelCharDriver *drv;
1295 TFR(fd = open(filename, O_RDWR));
1299 if (ioctl(fd, PPCLAIM) < 0) {
1304 drv = qemu_mallocz(sizeof(ParallelCharDriver));
1306 drv->mode = IEEE1284_MODE_COMPAT;
1308 chr = qemu_mallocz(sizeof(CharDriverState));
1309 chr->chr_write = null_chr_write;
1310 chr->chr_ioctl = pp_ioctl;
1311 chr->chr_close = pp_close;
1314 qemu_chr_reset(chr);
1318 #endif /* __linux__ */
1320 #if defined(__FreeBSD__) || defined(__DragonFly__)
1321 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1323 int fd = (int)chr->opaque;
1327 case CHR_IOCTL_PP_READ_DATA:
1328 if (ioctl(fd, PPIGDATA, &b) < 0)
1330 *(uint8_t *)arg = b;
1332 case CHR_IOCTL_PP_WRITE_DATA:
1333 b = *(uint8_t *)arg;
1334 if (ioctl(fd, PPISDATA, &b) < 0)
1337 case CHR_IOCTL_PP_READ_CONTROL:
1338 if (ioctl(fd, PPIGCTRL, &b) < 0)
1340 *(uint8_t *)arg = b;
1342 case CHR_IOCTL_PP_WRITE_CONTROL:
1343 b = *(uint8_t *)arg;
1344 if (ioctl(fd, PPISCTRL, &b) < 0)
1347 case CHR_IOCTL_PP_READ_STATUS:
1348 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1350 *(uint8_t *)arg = b;
1358 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1360 const char *filename = qemu_opt_get(opts, "path");
1361 CharDriverState *chr;
1364 fd = open(filename, O_RDWR);
1368 chr = qemu_mallocz(sizeof(CharDriverState));
1369 chr->opaque = (void *)fd;
1370 chr->chr_write = null_chr_write;
1371 chr->chr_ioctl = pp_ioctl;
1380 HANDLE hcom, hrecv, hsend;
1381 OVERLAPPED orecv, osend;
1386 #define NSENDBUF 2048
1387 #define NRECVBUF 2048
1388 #define MAXCONNECT 1
1389 #define NTIMEOUT 5000
1391 static int win_chr_poll(void *opaque);
1392 static int win_chr_pipe_poll(void *opaque);
1394 static void win_chr_close(CharDriverState *chr)
1396 WinCharState *s = chr->opaque;
1399 CloseHandle(s->hsend);
1403 CloseHandle(s->hrecv);
1407 CloseHandle(s->hcom);
1411 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1413 qemu_del_polling_cb(win_chr_poll, chr);
1415 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1418 static int win_chr_init(CharDriverState *chr, const char *filename)
1420 WinCharState *s = chr->opaque;
1422 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1427 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1429 fprintf(stderr, "Failed CreateEvent\n");
1432 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1434 fprintf(stderr, "Failed CreateEvent\n");
1438 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1439 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1440 if (s->hcom == INVALID_HANDLE_VALUE) {
1441 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1446 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1447 fprintf(stderr, "Failed SetupComm\n");
1451 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1452 size = sizeof(COMMCONFIG);
1453 GetDefaultCommConfig(filename, &comcfg, &size);
1454 comcfg.dcb.DCBlength = sizeof(DCB);
1455 CommConfigDialog(filename, NULL, &comcfg);
1457 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1458 fprintf(stderr, "Failed SetCommState\n");
1462 if (!SetCommMask(s->hcom, EV_ERR)) {
1463 fprintf(stderr, "Failed SetCommMask\n");
1467 cto.ReadIntervalTimeout = MAXDWORD;
1468 if (!SetCommTimeouts(s->hcom, &cto)) {
1469 fprintf(stderr, "Failed SetCommTimeouts\n");
1473 if (!ClearCommError(s->hcom, &err, &comstat)) {
1474 fprintf(stderr, "Failed ClearCommError\n");
1477 qemu_add_polling_cb(win_chr_poll, chr);
1485 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1487 WinCharState *s = chr->opaque;
1488 DWORD len, ret, size, err;
1491 ZeroMemory(&s->osend, sizeof(s->osend));
1492 s->osend.hEvent = s->hsend;
1495 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1497 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1499 err = GetLastError();
1500 if (err == ERROR_IO_PENDING) {
1501 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1519 static int win_chr_read_poll(CharDriverState *chr)
1521 WinCharState *s = chr->opaque;
1523 s->max_size = qemu_chr_can_read(chr);
1527 static void win_chr_readfile(CharDriverState *chr)
1529 WinCharState *s = chr->opaque;
1534 ZeroMemory(&s->orecv, sizeof(s->orecv));
1535 s->orecv.hEvent = s->hrecv;
1536 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1538 err = GetLastError();
1539 if (err == ERROR_IO_PENDING) {
1540 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1545 qemu_chr_read(chr, buf, size);
1549 static void win_chr_read(CharDriverState *chr)
1551 WinCharState *s = chr->opaque;
1553 if (s->len > s->max_size)
1554 s->len = s->max_size;
1558 win_chr_readfile(chr);
1561 static int win_chr_poll(void *opaque)
1563 CharDriverState *chr = opaque;
1564 WinCharState *s = chr->opaque;
1568 ClearCommError(s->hcom, &comerr, &status);
1569 if (status.cbInQue > 0) {
1570 s->len = status.cbInQue;
1571 win_chr_read_poll(chr);
1578 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1580 const char *filename = qemu_opt_get(opts, "path");
1581 CharDriverState *chr;
1584 chr = qemu_mallocz(sizeof(CharDriverState));
1585 s = qemu_mallocz(sizeof(WinCharState));
1587 chr->chr_write = win_chr_write;
1588 chr->chr_close = win_chr_close;
1590 if (win_chr_init(chr, filename) < 0) {
1595 qemu_chr_reset(chr);
1599 static int win_chr_pipe_poll(void *opaque)
1601 CharDriverState *chr = opaque;
1602 WinCharState *s = chr->opaque;
1605 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1608 win_chr_read_poll(chr);
1615 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1617 WinCharState *s = chr->opaque;
1625 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1627 fprintf(stderr, "Failed CreateEvent\n");
1630 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1632 fprintf(stderr, "Failed CreateEvent\n");
1636 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1637 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1638 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1640 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1641 if (s->hcom == INVALID_HANDLE_VALUE) {
1642 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1647 ZeroMemory(&ov, sizeof(ov));
1648 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1649 ret = ConnectNamedPipe(s->hcom, &ov);
1651 fprintf(stderr, "Failed ConnectNamedPipe\n");
1655 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1657 fprintf(stderr, "Failed GetOverlappedResult\n");
1659 CloseHandle(ov.hEvent);
1666 CloseHandle(ov.hEvent);
1669 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1678 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1680 const char *filename = qemu_opt_get(opts, "path");
1681 CharDriverState *chr;
1684 chr = qemu_mallocz(sizeof(CharDriverState));
1685 s = qemu_mallocz(sizeof(WinCharState));
1687 chr->chr_write = win_chr_write;
1688 chr->chr_close = win_chr_close;
1690 if (win_chr_pipe_init(chr, filename) < 0) {
1695 qemu_chr_reset(chr);
1699 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1701 CharDriverState *chr;
1704 chr = qemu_mallocz(sizeof(CharDriverState));
1705 s = qemu_mallocz(sizeof(WinCharState));
1708 chr->chr_write = win_chr_write;
1709 qemu_chr_reset(chr);
1713 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1715 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1718 static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
1720 const char *file_out = qemu_opt_get(opts, "path");
1723 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1724 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1725 if (fd_out == INVALID_HANDLE_VALUE)
1728 return qemu_chr_open_win_file(fd_out);
1730 #endif /* !_WIN32 */
1732 /***********************************************************/
1733 /* UDP Net console */
1743 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1745 NetCharDriver *s = chr->opaque;
1747 return send(s->fd, (const void *)buf, len, 0);
1750 static int udp_chr_read_poll(void *opaque)
1752 CharDriverState *chr = opaque;
1753 NetCharDriver *s = chr->opaque;
1755 s->max_size = qemu_chr_can_read(chr);
1757 /* If there were any stray characters in the queue process them
1760 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1761 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1763 s->max_size = qemu_chr_can_read(chr);
1768 static void udp_chr_read(void *opaque)
1770 CharDriverState *chr = opaque;
1771 NetCharDriver *s = chr->opaque;
1773 if (s->max_size == 0)
1775 s->bufcnt = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
1776 s->bufptr = s->bufcnt;
1781 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1782 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1784 s->max_size = qemu_chr_can_read(chr);
1788 static void udp_chr_update_read_handler(CharDriverState *chr)
1790 NetCharDriver *s = chr->opaque;
1793 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
1794 udp_chr_read, NULL, chr);
1798 static void udp_chr_close(CharDriverState *chr)
1800 NetCharDriver *s = chr->opaque;
1802 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1806 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1809 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
1811 CharDriverState *chr = NULL;
1812 NetCharDriver *s = NULL;
1815 chr = qemu_mallocz(sizeof(CharDriverState));
1816 s = qemu_mallocz(sizeof(NetCharDriver));
1818 fd = inet_dgram_opts(opts);
1820 fprintf(stderr, "inet_dgram_opts failed\n");
1828 chr->chr_write = udp_chr_write;
1829 chr->chr_update_read_handler = udp_chr_update_read_handler;
1830 chr->chr_close = udp_chr_close;
1843 /***********************************************************/
1844 /* TCP Net console */
1856 static void tcp_chr_accept(void *opaque);
1858 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1860 TCPCharDriver *s = chr->opaque;
1862 return send_all(s->fd, buf, len);
1864 /* XXX: indicate an error ? */
1869 static int tcp_chr_read_poll(void *opaque)
1871 CharDriverState *chr = opaque;
1872 TCPCharDriver *s = chr->opaque;
1875 s->max_size = qemu_chr_can_read(chr);
1880 #define IAC_BREAK 243
1881 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
1883 uint8_t *buf, int *size)
1885 /* Handle any telnet client's basic IAC options to satisfy char by
1886 * char mode with no echo. All IAC options will be removed from
1887 * the buf and the do_telnetopt variable will be used to track the
1888 * state of the width of the IAC information.
1890 * IAC commands come in sets of 3 bytes with the exception of the
1891 * "IAC BREAK" command and the double IAC.
1897 for (i = 0; i < *size; i++) {
1898 if (s->do_telnetopt > 1) {
1899 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
1900 /* Double IAC means send an IAC */
1904 s->do_telnetopt = 1;
1906 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
1907 /* Handle IAC break commands by sending a serial break */
1908 qemu_chr_event(chr, CHR_EVENT_BREAK);
1913 if (s->do_telnetopt >= 4) {
1914 s->do_telnetopt = 1;
1917 if ((unsigned char)buf[i] == IAC) {
1918 s->do_telnetopt = 2;
1929 static int tcp_get_msgfd(CharDriverState *chr)
1931 TCPCharDriver *s = chr->opaque;
1937 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
1939 TCPCharDriver *s = chr->opaque;
1940 struct cmsghdr *cmsg;
1942 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
1945 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
1946 cmsg->cmsg_level != SOL_SOCKET ||
1947 cmsg->cmsg_type != SCM_RIGHTS)
1950 fd = *((int *)CMSG_DATA(cmsg));
1960 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
1962 TCPCharDriver *s = chr->opaque;
1963 struct msghdr msg = { NULL, };
1964 struct iovec iov[1];
1966 struct cmsghdr cmsg;
1967 char control[CMSG_SPACE(sizeof(int))];
1971 iov[0].iov_base = buf;
1972 iov[0].iov_len = len;
1976 msg.msg_control = &msg_control;
1977 msg.msg_controllen = sizeof(msg_control);
1979 ret = recvmsg(s->fd, &msg, 0);
1980 if (ret > 0 && s->is_unix)
1981 unix_process_msgfd(chr, &msg);
1986 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
1988 TCPCharDriver *s = chr->opaque;
1989 return recv(s->fd, buf, len, 0);
1993 static void tcp_chr_read(void *opaque)
1995 CharDriverState *chr = opaque;
1996 TCPCharDriver *s = chr->opaque;
2000 if (!s->connected || s->max_size <= 0)
2003 if (len > s->max_size)
2005 size = tcp_chr_recv(chr, (void *)buf, len);
2007 /* connection closed */
2009 if (s->listen_fd >= 0) {
2010 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2012 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2015 qemu_chr_event(chr, CHR_EVENT_CLOSED);
2016 } else if (size > 0) {
2017 if (s->do_telnetopt)
2018 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2020 qemu_chr_read(chr, buf, size);
2021 if (s->msgfd != -1) {
2028 static void tcp_chr_connect(void *opaque)
2030 CharDriverState *chr = opaque;
2031 TCPCharDriver *s = chr->opaque;
2034 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2035 tcp_chr_read, NULL, chr);
2036 qemu_chr_reset(chr);
2039 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2040 static void tcp_chr_telnet_init(int fd)
2043 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2044 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2045 send(fd, (char *)buf, 3, 0);
2046 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2047 send(fd, (char *)buf, 3, 0);
2048 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2049 send(fd, (char *)buf, 3, 0);
2050 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2051 send(fd, (char *)buf, 3, 0);
2054 static void socket_set_nodelay(int fd)
2057 setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
2060 static void tcp_chr_accept(void *opaque)
2062 CharDriverState *chr = opaque;
2063 TCPCharDriver *s = chr->opaque;
2064 struct sockaddr_in saddr;
2066 struct sockaddr_un uaddr;
2068 struct sockaddr *addr;
2075 len = sizeof(uaddr);
2076 addr = (struct sockaddr *)&uaddr;
2080 len = sizeof(saddr);
2081 addr = (struct sockaddr *)&saddr;
2083 fd = accept(s->listen_fd, addr, &len);
2084 if (fd < 0 && errno != EINTR) {
2086 } else if (fd >= 0) {
2087 if (s->do_telnetopt)
2088 tcp_chr_telnet_init(fd);
2092 socket_set_nonblock(fd);
2094 socket_set_nodelay(fd);
2096 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
2097 tcp_chr_connect(chr);
2100 static void tcp_chr_close(CharDriverState *chr)
2102 TCPCharDriver *s = chr->opaque;
2104 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2107 if (s->listen_fd >= 0) {
2108 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
2109 closesocket(s->listen_fd);
2112 qemu_chr_event(chr, CHR_EVENT_CLOSED);
2115 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2117 CharDriverState *chr = NULL;
2118 TCPCharDriver *s = NULL;
2126 is_listen = qemu_opt_get_bool(opts, "server", 0);
2127 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2128 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2129 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2130 is_unix = qemu_opt_get(opts, "path") != NULL;
2134 chr = qemu_mallocz(sizeof(CharDriverState));
2135 s = qemu_mallocz(sizeof(TCPCharDriver));
2139 fd = unix_listen_opts(opts);
2141 fd = unix_connect_opts(opts);
2145 fd = inet_listen_opts(opts, 0);
2147 fd = inet_connect_opts(opts);
2153 if (!is_waitconnect)
2154 socket_set_nonblock(fd);
2160 s->is_unix = is_unix;
2161 s->do_nodelay = do_nodelay && !is_unix;
2164 chr->chr_write = tcp_chr_write;
2165 chr->chr_close = tcp_chr_close;
2166 chr->get_msgfd = tcp_get_msgfd;
2170 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2172 s->do_telnetopt = 1;
2177 socket_set_nodelay(fd);
2178 tcp_chr_connect(chr);
2181 /* for "info chardev" monitor command */
2182 chr->filename = qemu_malloc(256);
2184 snprintf(chr->filename, 256, "unix:%s%s",
2185 qemu_opt_get(opts, "path"),
2186 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2187 } else if (is_telnet) {
2188 snprintf(chr->filename, 256, "telnet:%s:%s%s",
2189 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2190 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2192 snprintf(chr->filename, 256, "tcp:%s:%s%s",
2193 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2194 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2197 if (is_listen && is_waitconnect) {
2198 printf("QEMU waiting for connection on: %s\n",
2200 tcp_chr_accept(chr);
2201 socket_set_nonblock(s->listen_fd);
2213 static QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2215 char host[65], port[33], width[8], height[8];
2220 opts = qemu_opts_create(&qemu_chardev_opts, label, 1);
2224 if (strstart(filename, "mon:", &p)) {
2226 qemu_opt_set(opts, "mux", "on");
2229 if (strcmp(filename, "null") == 0 ||
2230 strcmp(filename, "pty") == 0 ||
2231 strcmp(filename, "msmouse") == 0 ||
2232 strcmp(filename, "braille") == 0 ||
2233 strcmp(filename, "stdio") == 0) {
2234 qemu_opt_set(opts, "backend", filename);
2237 if (strstart(filename, "vc", &p)) {
2238 qemu_opt_set(opts, "backend", "vc");
2240 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2242 qemu_opt_set(opts, "width", width);
2243 qemu_opt_set(opts, "height", height);
2244 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2246 qemu_opt_set(opts, "cols", width);
2247 qemu_opt_set(opts, "rows", height);
2254 if (strcmp(filename, "con:") == 0) {
2255 qemu_opt_set(opts, "backend", "console");
2258 if (strstart(filename, "COM", NULL)) {
2259 qemu_opt_set(opts, "backend", "serial");
2260 qemu_opt_set(opts, "path", filename);
2263 if (strstart(filename, "file:", &p)) {
2264 qemu_opt_set(opts, "backend", "file");
2265 qemu_opt_set(opts, "path", p);
2268 if (strstart(filename, "pipe:", &p)) {
2269 qemu_opt_set(opts, "backend", "pipe");
2270 qemu_opt_set(opts, "path", p);
2273 if (strstart(filename, "tcp:", &p) ||
2274 strstart(filename, "telnet:", &p)) {
2275 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2277 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2280 qemu_opt_set(opts, "backend", "socket");
2281 qemu_opt_set(opts, "host", host);
2282 qemu_opt_set(opts, "port", port);
2283 if (p[pos] == ',') {
2284 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2287 if (strstart(filename, "telnet:", &p))
2288 qemu_opt_set(opts, "telnet", "on");
2291 if (strstart(filename, "udp:", &p)) {
2292 qemu_opt_set(opts, "backend", "udp");
2293 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2295 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2296 fprintf(stderr, "udp #1\n");
2300 qemu_opt_set(opts, "host", host);
2301 qemu_opt_set(opts, "port", port);
2302 if (p[pos] == '@') {
2304 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2306 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2307 fprintf(stderr, "udp #2\n");
2311 qemu_opt_set(opts, "localaddr", host);
2312 qemu_opt_set(opts, "localport", port);
2316 if (strstart(filename, "unix:", &p)) {
2317 qemu_opt_set(opts, "backend", "socket");
2318 if (qemu_opts_do_parse(opts, p, "path") != 0)
2322 if (strstart(filename, "/dev/parport", NULL) ||
2323 strstart(filename, "/dev/ppi", NULL)) {
2324 qemu_opt_set(opts, "backend", "parport");
2325 qemu_opt_set(opts, "path", filename);
2328 if (strstart(filename, "/dev/", NULL)) {
2329 qemu_opt_set(opts, "backend", "tty");
2330 qemu_opt_set(opts, "path", filename);
2335 fprintf(stderr, "%s: fail on \"%s\"\n", __FUNCTION__, filename);
2336 qemu_opts_del(opts);
2340 static const struct {
2342 CharDriverState *(*open)(QemuOpts *opts);
2343 } backend_table[] = {
2344 { .name = "null", .open = qemu_chr_open_null },
2345 { .name = "socket", .open = qemu_chr_open_socket },
2346 { .name = "udp", .open = qemu_chr_open_udp },
2347 { .name = "msmouse", .open = qemu_chr_open_msmouse },
2348 { .name = "vc", .open = text_console_init },
2350 { .name = "file", .open = qemu_chr_open_win_file_out },
2351 { .name = "pipe", .open = qemu_chr_open_win_pipe },
2352 { .name = "console", .open = qemu_chr_open_win_con },
2353 { .name = "serial", .open = qemu_chr_open_win },
2355 { .name = "file", .open = qemu_chr_open_file_out },
2356 { .name = "pipe", .open = qemu_chr_open_pipe },
2357 { .name = "pty", .open = qemu_chr_open_pty },
2358 { .name = "stdio", .open = qemu_chr_open_stdio },
2360 #ifdef CONFIG_BRLAPI
2361 { .name = "braille", .open = chr_baum_init },
2363 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2364 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
2365 { .name = "tty", .open = qemu_chr_open_tty },
2367 #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__)
2368 { .name = "parport", .open = qemu_chr_open_pp },
2372 CharDriverState *qemu_chr_open_opts(QemuOpts *opts,
2373 void (*init)(struct CharDriverState *s))
2375 CharDriverState *chr;
2378 if (qemu_opts_id(opts) == NULL) {
2379 fprintf(stderr, "chardev: no id specified\n");
2383 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
2384 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
2387 if (i == ARRAY_SIZE(backend_table)) {
2388 fprintf(stderr, "chardev: backend \"%s\" not found\n",
2389 qemu_opt_get(opts, "backend"));
2393 chr = backend_table[i].open(opts);
2395 fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
2396 qemu_opt_get(opts, "backend"));
2401 chr->filename = qemu_strdup(qemu_opt_get(opts, "backend"));
2403 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2405 if (qemu_opt_get_bool(opts, "mux", 0)) {
2406 CharDriverState *base = chr;
2407 int len = strlen(qemu_opts_id(opts)) + 6;
2408 base->label = qemu_malloc(len);
2409 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
2410 chr = qemu_chr_open_mux(base);
2411 chr->filename = base->filename;
2412 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2414 chr->label = qemu_strdup(qemu_opts_id(opts));
2418 CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
2421 CharDriverState *chr;
2424 if (strstart(filename, "chardev:", &p)) {
2425 return qemu_chr_find(p);
2428 opts = qemu_chr_parse_compat(label, filename);
2432 chr = qemu_chr_open_opts(opts, init);
2433 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
2434 monitor_init(chr, MONITOR_USE_READLINE);
2439 void qemu_chr_close(CharDriverState *chr)
2441 QTAILQ_REMOVE(&chardevs, chr, next);
2443 chr->chr_close(chr);
2444 qemu_free(chr->filename);
2445 qemu_free(chr->label);
2449 void qemu_chr_info(Monitor *mon)
2451 CharDriverState *chr;
2453 QTAILQ_FOREACH(chr, &chardevs, next) {
2454 monitor_printf(mon, "%s: filename=%s\n", chr->label, chr->filename);
2458 CharDriverState *qemu_chr_find(const char *name)
2460 CharDriverState *chr;
2462 QTAILQ_FOREACH(chr, &chardevs, next) {
2463 if (strcmp(chr->label, name) != 0)