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 "qemu-objects.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>
54 #include <arpa/inet.h>
57 #include <sys/select.h>
60 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
62 #include <dev/ppbus/ppi.h>
63 #include <dev/ppbus/ppbconf.h>
64 #if defined(__GLIBC__)
67 #elif defined(__DragonFly__)
69 #include <dev/misc/ppi/ppi.h>
70 #include <bus/ppbus/ppbconf.h>
78 #include <linux/ppdev.h>
79 #include <linux/parport.h>
83 #include <sys/ethernet.h>
84 #include <sys/sockio.h>
85 #include <netinet/arp.h>
86 #include <netinet/in.h>
87 #include <netinet/in_systm.h>
88 #include <netinet/ip.h>
89 #include <netinet/ip_icmp.h> // must come after ip.h
90 #include <netinet/udp.h>
91 #include <netinet/tcp.h>
99 #include "qemu_socket.h"
101 #define READ_BUF_LEN 4096
103 /***********************************************************/
104 /* character device */
106 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
107 QTAILQ_HEAD_INITIALIZER(chardevs);
109 static void qemu_chr_event(CharDriverState *s, int event)
111 /* Keep track if the char device is open */
113 case CHR_EVENT_OPENED:
116 case CHR_EVENT_CLOSED:
123 s->chr_event(s->handler_opaque, event);
126 static void qemu_chr_generic_open_bh(void *opaque)
128 CharDriverState *s = opaque;
129 qemu_chr_event(s, CHR_EVENT_OPENED);
130 qemu_bh_delete(s->bh);
134 void qemu_chr_generic_open(CharDriverState *s)
137 s->bh = qemu_bh_new(qemu_chr_generic_open_bh, s);
138 qemu_bh_schedule(s->bh);
142 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
144 return s->chr_write(s, buf, len);
147 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg)
151 return s->chr_ioctl(s, cmd, arg);
154 int qemu_chr_can_read(CharDriverState *s)
156 if (!s->chr_can_read)
158 return s->chr_can_read(s->handler_opaque);
161 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len)
163 s->chr_read(s->handler_opaque, buf, len);
166 int qemu_chr_get_msgfd(CharDriverState *s)
168 return s->get_msgfd ? s->get_msgfd(s) : -1;
171 void qemu_chr_accept_input(CharDriverState *s)
173 if (s->chr_accept_input)
174 s->chr_accept_input(s);
177 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
179 char buf[READ_BUF_LEN];
182 vsnprintf(buf, sizeof(buf), fmt, ap);
183 qemu_chr_write(s, (uint8_t *)buf, strlen(buf));
187 void qemu_chr_send_event(CharDriverState *s, int event)
189 if (s->chr_send_event)
190 s->chr_send_event(s, event);
193 void qemu_chr_add_handlers(CharDriverState *s,
194 IOCanReadHandler *fd_can_read,
195 IOReadHandler *fd_read,
196 IOEventHandler *fd_event,
199 s->chr_can_read = fd_can_read;
200 s->chr_read = fd_read;
201 s->chr_event = fd_event;
202 s->handler_opaque = opaque;
203 if (s->chr_update_read_handler)
204 s->chr_update_read_handler(s);
206 /* We're connecting to an already opened device, so let's make sure we
207 also get the open event */
209 qemu_chr_generic_open(s);
213 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
218 static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
220 CharDriverState *chr;
222 chr = qemu_mallocz(sizeof(CharDriverState));
223 chr->chr_write = null_chr_write;
227 /* MUX driver for serial I/O splitting */
229 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
230 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
232 IOCanReadHandler *chr_can_read[MAX_MUX];
233 IOReadHandler *chr_read[MAX_MUX];
234 IOEventHandler *chr_event[MAX_MUX];
235 void *ext_opaque[MAX_MUX];
236 CharDriverState *drv;
241 /* Intermediate input buffer allows to catch escape sequences even if the
242 currently active device is not accepting any input - but only until it
244 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
249 int64_t timestamps_start;
253 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
255 MuxDriver *d = chr->opaque;
257 if (!d->timestamps) {
258 ret = d->drv->chr_write(d->drv, buf, len);
263 for (i = 0; i < len; i++) {
269 ti = qemu_get_clock(rt_clock);
270 if (d->timestamps_start == -1)
271 d->timestamps_start = ti;
272 ti -= d->timestamps_start;
274 snprintf(buf1, sizeof(buf1),
275 "[%02d:%02d:%02d.%03d] ",
280 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
283 ret += d->drv->chr_write(d->drv, buf+i, 1);
284 if (buf[i] == '\n') {
292 static const char * const mux_help[] = {
293 "% h print this help\n\r",
294 "% x exit emulator\n\r",
295 "% s save disk data back to file (if -snapshot)\n\r",
296 "% t toggle console timestamps\n\r"
297 "% b send break (magic sysrq)\n\r",
298 "% c switch between console and monitor\n\r",
303 int term_escape_char = 0x01; /* ctrl-a is used for escape */
304 static void mux_print_help(CharDriverState *chr)
307 char ebuf[15] = "Escape-Char";
308 char cbuf[50] = "\n\r";
310 if (term_escape_char > 0 && term_escape_char < 26) {
311 snprintf(cbuf, sizeof(cbuf), "\n\r");
312 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
314 snprintf(cbuf, sizeof(cbuf),
315 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
318 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
319 for (i = 0; mux_help[i] != NULL; i++) {
320 for (j=0; mux_help[i][j] != '\0'; j++) {
321 if (mux_help[i][j] == '%')
322 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
324 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
329 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
331 if (d->chr_event[mux_nr])
332 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
335 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
337 if (d->term_got_escape) {
338 d->term_got_escape = 0;
339 if (ch == term_escape_char)
348 const char *term = "QEMU: Terminated\n\r";
349 chr->chr_write(chr,(uint8_t *)term,strlen(term));
357 qemu_chr_event(chr, CHR_EVENT_BREAK);
360 /* Switch to the next registered device */
361 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
363 if (d->focus >= d->mux_cnt)
365 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
368 d->timestamps = !d->timestamps;
369 d->timestamps_start = -1;
373 } else if (ch == term_escape_char) {
374 d->term_got_escape = 1;
382 static void mux_chr_accept_input(CharDriverState *chr)
384 MuxDriver *d = chr->opaque;
387 while (d->prod[m] != d->cons[m] &&
388 d->chr_can_read[m] &&
389 d->chr_can_read[m](d->ext_opaque[m])) {
390 d->chr_read[m](d->ext_opaque[m],
391 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
395 static int mux_chr_can_read(void *opaque)
397 CharDriverState *chr = opaque;
398 MuxDriver *d = chr->opaque;
401 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
403 if (d->chr_can_read[m])
404 return d->chr_can_read[m](d->ext_opaque[m]);
408 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
410 CharDriverState *chr = opaque;
411 MuxDriver *d = chr->opaque;
415 mux_chr_accept_input (opaque);
417 for(i = 0; i < size; i++)
418 if (mux_proc_byte(chr, d, buf[i])) {
419 if (d->prod[m] == d->cons[m] &&
420 d->chr_can_read[m] &&
421 d->chr_can_read[m](d->ext_opaque[m]))
422 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
424 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
428 static void mux_chr_event(void *opaque, int event)
430 CharDriverState *chr = opaque;
431 MuxDriver *d = chr->opaque;
434 /* Send the event to all registered listeners */
435 for (i = 0; i < d->mux_cnt; i++)
436 mux_chr_send_event(d, i, event);
439 static void mux_chr_update_read_handler(CharDriverState *chr)
441 MuxDriver *d = chr->opaque;
443 if (d->mux_cnt >= MAX_MUX) {
444 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
447 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
448 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
449 d->chr_read[d->mux_cnt] = chr->chr_read;
450 d->chr_event[d->mux_cnt] = chr->chr_event;
451 /* Fix up the real driver with mux routines */
452 if (d->mux_cnt == 0) {
453 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
456 if (d->focus != -1) {
457 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
459 d->focus = d->mux_cnt;
461 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
464 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
466 CharDriverState *chr;
469 chr = qemu_mallocz(sizeof(CharDriverState));
470 d = qemu_mallocz(sizeof(MuxDriver));
475 chr->chr_write = mux_chr_write;
476 chr->chr_update_read_handler = mux_chr_update_read_handler;
477 chr->chr_accept_input = mux_chr_accept_input;
479 /* Muxes are always open on creation */
480 qemu_chr_generic_open(chr);
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;
567 uint8_t buf[READ_BUF_LEN];
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;
629 qemu_chr_generic_open(chr);
634 static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
638 TFR(fd_out = qemu_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 = qemu_open(filename_in, O_RDWR | O_BINARY));
659 TFR(fd_out = qemu_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(QemuOpts *opts)
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 (!qemu_opt_get_bool(opts, "signal", 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__) \
840 || defined(__GLIBC__)
850 static void pty_chr_update_read_handler(CharDriverState *chr);
851 static void pty_chr_state(CharDriverState *chr, int connected);
853 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
855 PtyCharDriver *s = chr->opaque;
858 /* guest sends data, check for (re-)connect */
859 pty_chr_update_read_handler(chr);
862 return send_all(s->fd, buf, len);
865 static int pty_chr_read_poll(void *opaque)
867 CharDriverState *chr = opaque;
868 PtyCharDriver *s = chr->opaque;
870 s->read_bytes = qemu_chr_can_read(chr);
871 return s->read_bytes;
874 static void pty_chr_read(void *opaque)
876 CharDriverState *chr = opaque;
877 PtyCharDriver *s = chr->opaque;
879 uint8_t buf[READ_BUF_LEN];
882 if (len > s->read_bytes)
886 size = read(s->fd, buf, len);
887 if ((size == -1 && errno == EIO) ||
889 pty_chr_state(chr, 0);
893 pty_chr_state(chr, 1);
894 qemu_chr_read(chr, buf, size);
898 static void pty_chr_update_read_handler(CharDriverState *chr)
900 PtyCharDriver *s = chr->opaque;
902 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
903 pty_chr_read, NULL, chr);
906 * Short timeout here: just need wait long enougth that qemu makes
907 * it through the poll loop once. When reconnected we want a
908 * short timeout so we notice it almost instantly. Otherwise
909 * read() gives us -EIO instantly, making pty_chr_state() reset the
910 * timeout to the normal (much longer) poll interval before the
913 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
916 static void pty_chr_state(CharDriverState *chr, int connected)
918 PtyCharDriver *s = chr->opaque;
921 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
924 /* (re-)connect poll interval for idle guests: once per second.
925 * We check more frequently in case the guests sends data to
926 * the virtual device linked to our pty. */
927 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
930 qemu_chr_generic_open(chr);
935 static void pty_chr_timer(void *opaque)
937 struct CharDriverState *chr = opaque;
938 PtyCharDriver *s = chr->opaque;
943 /* If we arrive here without polling being cleared due
944 * read returning -EIO, then we are (re-)connected */
945 pty_chr_state(chr, 1);
950 pty_chr_update_read_handler(chr);
953 static void pty_chr_close(struct CharDriverState *chr)
955 PtyCharDriver *s = chr->opaque;
957 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
959 qemu_del_timer(s->timer);
960 qemu_free_timer(s->timer);
962 qemu_chr_event(chr, CHR_EVENT_CLOSED);
965 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
967 CharDriverState *chr;
971 #if defined(__OpenBSD__) || defined(__DragonFly__)
972 char pty_name[PATH_MAX];
973 #define q_ptsname(x) pty_name
975 char *pty_name = NULL;
976 #define q_ptsname(x) ptsname(x)
979 chr = qemu_mallocz(sizeof(CharDriverState));
980 s = qemu_mallocz(sizeof(PtyCharDriver));
982 if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) {
986 /* Set raw attributes on the pty. */
987 tcgetattr(slave_fd, &tty);
989 tcsetattr(slave_fd, TCSAFLUSH, &tty);
992 len = strlen(q_ptsname(s->fd)) + 5;
993 chr->filename = qemu_malloc(len);
994 snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
995 qemu_opt_set(opts, "path", q_ptsname(s->fd));
996 fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
999 chr->chr_write = pty_chr_write;
1000 chr->chr_update_read_handler = pty_chr_update_read_handler;
1001 chr->chr_close = pty_chr_close;
1003 s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr);
1008 static void tty_serial_init(int fd, int speed,
1009 int parity, int data_bits, int stop_bits)
1015 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1016 speed, parity, data_bits, stop_bits);
1018 tcgetattr (fd, &tty);
1019 if (!term_atexit_done) {
1023 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1024 speed = speed * 10 / 11;
1041 /* Non-Posix values follow. They may be unsupported on some systems. */
1043 check_speed(115200);
1045 check_speed(230400);
1048 check_speed(460800);
1051 check_speed(500000);
1054 check_speed(576000);
1057 check_speed(921600);
1060 check_speed(1000000);
1063 check_speed(1152000);
1066 check_speed(1500000);
1069 check_speed(2000000);
1072 check_speed(2500000);
1075 check_speed(3000000);
1078 check_speed(3500000);
1081 check_speed(4000000);
1086 cfsetispeed(&tty, spd);
1087 cfsetospeed(&tty, spd);
1089 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1090 |INLCR|IGNCR|ICRNL|IXON);
1091 tty.c_oflag |= OPOST;
1092 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1093 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1114 tty.c_cflag |= PARENB;
1117 tty.c_cflag |= PARENB | PARODD;
1121 tty.c_cflag |= CSTOPB;
1123 tcsetattr (fd, TCSANOW, &tty);
1126 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1128 FDCharDriver *s = chr->opaque;
1131 case CHR_IOCTL_SERIAL_SET_PARAMS:
1133 QEMUSerialSetParams *ssp = arg;
1134 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1135 ssp->data_bits, ssp->stop_bits);
1138 case CHR_IOCTL_SERIAL_SET_BREAK:
1140 int enable = *(int *)arg;
1142 tcsendbreak(s->fd_in, 1);
1145 case CHR_IOCTL_SERIAL_GET_TIOCM:
1148 int *targ = (int *)arg;
1149 ioctl(s->fd_in, TIOCMGET, &sarg);
1151 if (sarg & TIOCM_CTS)
1152 *targ |= CHR_TIOCM_CTS;
1153 if (sarg & TIOCM_CAR)
1154 *targ |= CHR_TIOCM_CAR;
1155 if (sarg & TIOCM_DSR)
1156 *targ |= CHR_TIOCM_DSR;
1157 if (sarg & TIOCM_RI)
1158 *targ |= CHR_TIOCM_RI;
1159 if (sarg & TIOCM_DTR)
1160 *targ |= CHR_TIOCM_DTR;
1161 if (sarg & TIOCM_RTS)
1162 *targ |= CHR_TIOCM_RTS;
1165 case CHR_IOCTL_SERIAL_SET_TIOCM:
1167 int sarg = *(int *)arg;
1169 ioctl(s->fd_in, TIOCMGET, &targ);
1170 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1171 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1172 if (sarg & CHR_TIOCM_CTS)
1174 if (sarg & CHR_TIOCM_CAR)
1176 if (sarg & CHR_TIOCM_DSR)
1178 if (sarg & CHR_TIOCM_RI)
1180 if (sarg & CHR_TIOCM_DTR)
1182 if (sarg & CHR_TIOCM_RTS)
1184 ioctl(s->fd_in, TIOCMSET, &targ);
1193 static void tty_exit(void)
1195 tcsetattr(0, TCSANOW, &oldtty);
1198 static void qemu_chr_close_tty(CharDriverState *chr)
1200 FDCharDriver *s = chr->opaque;
1214 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1216 const char *filename = qemu_opt_get(opts, "path");
1217 CharDriverState *chr;
1220 TFR(fd = open(filename, O_RDWR | O_NONBLOCK));
1224 tty_serial_init(fd, 115200, 'N', 8, 1);
1225 chr = qemu_chr_open_fd(fd, fd);
1230 chr->chr_ioctl = tty_serial_ioctl;
1231 chr->chr_close = qemu_chr_close_tty;
1232 if (!term_atexit_done++)
1236 #else /* ! __linux__ && ! __sun__ */
1237 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
1241 #endif /* __linux__ || __sun__ */
1243 #if defined(__linux__)
1247 } ParallelCharDriver;
1249 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1251 if (s->mode != mode) {
1253 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1260 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1262 ParallelCharDriver *drv = chr->opaque;
1267 case CHR_IOCTL_PP_READ_DATA:
1268 if (ioctl(fd, PPRDATA, &b) < 0)
1270 *(uint8_t *)arg = b;
1272 case CHR_IOCTL_PP_WRITE_DATA:
1273 b = *(uint8_t *)arg;
1274 if (ioctl(fd, PPWDATA, &b) < 0)
1277 case CHR_IOCTL_PP_READ_CONTROL:
1278 if (ioctl(fd, PPRCONTROL, &b) < 0)
1280 /* Linux gives only the lowest bits, and no way to know data
1281 direction! For better compatibility set the fixed upper
1283 *(uint8_t *)arg = b | 0xc0;
1285 case CHR_IOCTL_PP_WRITE_CONTROL:
1286 b = *(uint8_t *)arg;
1287 if (ioctl(fd, PPWCONTROL, &b) < 0)
1290 case CHR_IOCTL_PP_READ_STATUS:
1291 if (ioctl(fd, PPRSTATUS, &b) < 0)
1293 *(uint8_t *)arg = b;
1295 case CHR_IOCTL_PP_DATA_DIR:
1296 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1299 case CHR_IOCTL_PP_EPP_READ_ADDR:
1300 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1301 struct ParallelIOArg *parg = arg;
1302 int n = read(fd, parg->buffer, parg->count);
1303 if (n != parg->count) {
1308 case CHR_IOCTL_PP_EPP_READ:
1309 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1310 struct ParallelIOArg *parg = arg;
1311 int n = read(fd, parg->buffer, parg->count);
1312 if (n != parg->count) {
1317 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1318 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1319 struct ParallelIOArg *parg = arg;
1320 int n = write(fd, parg->buffer, parg->count);
1321 if (n != parg->count) {
1326 case CHR_IOCTL_PP_EPP_WRITE:
1327 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1328 struct ParallelIOArg *parg = arg;
1329 int n = write(fd, parg->buffer, parg->count);
1330 if (n != parg->count) {
1341 static void pp_close(CharDriverState *chr)
1343 ParallelCharDriver *drv = chr->opaque;
1346 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1347 ioctl(fd, PPRELEASE);
1350 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1353 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1355 const char *filename = qemu_opt_get(opts, "path");
1356 CharDriverState *chr;
1357 ParallelCharDriver *drv;
1360 TFR(fd = open(filename, O_RDWR));
1364 if (ioctl(fd, PPCLAIM) < 0) {
1369 drv = qemu_mallocz(sizeof(ParallelCharDriver));
1371 drv->mode = IEEE1284_MODE_COMPAT;
1373 chr = qemu_mallocz(sizeof(CharDriverState));
1374 chr->chr_write = null_chr_write;
1375 chr->chr_ioctl = pp_ioctl;
1376 chr->chr_close = pp_close;
1379 qemu_chr_generic_open(chr);
1383 #endif /* __linux__ */
1385 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1386 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1388 int fd = (int)(long)chr->opaque;
1392 case CHR_IOCTL_PP_READ_DATA:
1393 if (ioctl(fd, PPIGDATA, &b) < 0)
1395 *(uint8_t *)arg = b;
1397 case CHR_IOCTL_PP_WRITE_DATA:
1398 b = *(uint8_t *)arg;
1399 if (ioctl(fd, PPISDATA, &b) < 0)
1402 case CHR_IOCTL_PP_READ_CONTROL:
1403 if (ioctl(fd, PPIGCTRL, &b) < 0)
1405 *(uint8_t *)arg = b;
1407 case CHR_IOCTL_PP_WRITE_CONTROL:
1408 b = *(uint8_t *)arg;
1409 if (ioctl(fd, PPISCTRL, &b) < 0)
1412 case CHR_IOCTL_PP_READ_STATUS:
1413 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1415 *(uint8_t *)arg = b;
1423 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1425 const char *filename = qemu_opt_get(opts, "path");
1426 CharDriverState *chr;
1429 fd = open(filename, O_RDWR);
1433 chr = qemu_mallocz(sizeof(CharDriverState));
1434 chr->opaque = (void *)(long)fd;
1435 chr->chr_write = null_chr_write;
1436 chr->chr_ioctl = pp_ioctl;
1445 HANDLE hcom, hrecv, hsend;
1446 OVERLAPPED orecv, osend;
1451 #define NSENDBUF 2048
1452 #define NRECVBUF 2048
1453 #define MAXCONNECT 1
1454 #define NTIMEOUT 5000
1456 static int win_chr_poll(void *opaque);
1457 static int win_chr_pipe_poll(void *opaque);
1459 static void win_chr_close(CharDriverState *chr)
1461 WinCharState *s = chr->opaque;
1464 CloseHandle(s->hsend);
1468 CloseHandle(s->hrecv);
1472 CloseHandle(s->hcom);
1476 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1478 qemu_del_polling_cb(win_chr_poll, chr);
1480 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1483 static int win_chr_init(CharDriverState *chr, const char *filename)
1485 WinCharState *s = chr->opaque;
1487 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1492 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1494 fprintf(stderr, "Failed CreateEvent\n");
1497 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1499 fprintf(stderr, "Failed CreateEvent\n");
1503 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1504 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1505 if (s->hcom == INVALID_HANDLE_VALUE) {
1506 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1511 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1512 fprintf(stderr, "Failed SetupComm\n");
1516 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1517 size = sizeof(COMMCONFIG);
1518 GetDefaultCommConfig(filename, &comcfg, &size);
1519 comcfg.dcb.DCBlength = sizeof(DCB);
1520 CommConfigDialog(filename, NULL, &comcfg);
1522 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1523 fprintf(stderr, "Failed SetCommState\n");
1527 if (!SetCommMask(s->hcom, EV_ERR)) {
1528 fprintf(stderr, "Failed SetCommMask\n");
1532 cto.ReadIntervalTimeout = MAXDWORD;
1533 if (!SetCommTimeouts(s->hcom, &cto)) {
1534 fprintf(stderr, "Failed SetCommTimeouts\n");
1538 if (!ClearCommError(s->hcom, &err, &comstat)) {
1539 fprintf(stderr, "Failed ClearCommError\n");
1542 qemu_add_polling_cb(win_chr_poll, chr);
1550 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1552 WinCharState *s = chr->opaque;
1553 DWORD len, ret, size, err;
1556 ZeroMemory(&s->osend, sizeof(s->osend));
1557 s->osend.hEvent = s->hsend;
1560 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1562 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1564 err = GetLastError();
1565 if (err == ERROR_IO_PENDING) {
1566 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1584 static int win_chr_read_poll(CharDriverState *chr)
1586 WinCharState *s = chr->opaque;
1588 s->max_size = qemu_chr_can_read(chr);
1592 static void win_chr_readfile(CharDriverState *chr)
1594 WinCharState *s = chr->opaque;
1596 uint8_t buf[READ_BUF_LEN];
1599 ZeroMemory(&s->orecv, sizeof(s->orecv));
1600 s->orecv.hEvent = s->hrecv;
1601 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1603 err = GetLastError();
1604 if (err == ERROR_IO_PENDING) {
1605 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1610 qemu_chr_read(chr, buf, size);
1614 static void win_chr_read(CharDriverState *chr)
1616 WinCharState *s = chr->opaque;
1618 if (s->len > s->max_size)
1619 s->len = s->max_size;
1623 win_chr_readfile(chr);
1626 static int win_chr_poll(void *opaque)
1628 CharDriverState *chr = opaque;
1629 WinCharState *s = chr->opaque;
1633 ClearCommError(s->hcom, &comerr, &status);
1634 if (status.cbInQue > 0) {
1635 s->len = status.cbInQue;
1636 win_chr_read_poll(chr);
1643 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1645 const char *filename = qemu_opt_get(opts, "path");
1646 CharDriverState *chr;
1649 chr = qemu_mallocz(sizeof(CharDriverState));
1650 s = qemu_mallocz(sizeof(WinCharState));
1652 chr->chr_write = win_chr_write;
1653 chr->chr_close = win_chr_close;
1655 if (win_chr_init(chr, filename) < 0) {
1660 qemu_chr_generic_open(chr);
1664 static int win_chr_pipe_poll(void *opaque)
1666 CharDriverState *chr = opaque;
1667 WinCharState *s = chr->opaque;
1670 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1673 win_chr_read_poll(chr);
1680 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1682 WinCharState *s = chr->opaque;
1690 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1692 fprintf(stderr, "Failed CreateEvent\n");
1695 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1697 fprintf(stderr, "Failed CreateEvent\n");
1701 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1702 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1703 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1705 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1706 if (s->hcom == INVALID_HANDLE_VALUE) {
1707 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1712 ZeroMemory(&ov, sizeof(ov));
1713 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1714 ret = ConnectNamedPipe(s->hcom, &ov);
1716 fprintf(stderr, "Failed ConnectNamedPipe\n");
1720 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1722 fprintf(stderr, "Failed GetOverlappedResult\n");
1724 CloseHandle(ov.hEvent);
1731 CloseHandle(ov.hEvent);
1734 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1743 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1745 const char *filename = qemu_opt_get(opts, "path");
1746 CharDriverState *chr;
1749 chr = qemu_mallocz(sizeof(CharDriverState));
1750 s = qemu_mallocz(sizeof(WinCharState));
1752 chr->chr_write = win_chr_write;
1753 chr->chr_close = win_chr_close;
1755 if (win_chr_pipe_init(chr, filename) < 0) {
1760 qemu_chr_generic_open(chr);
1764 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1766 CharDriverState *chr;
1769 chr = qemu_mallocz(sizeof(CharDriverState));
1770 s = qemu_mallocz(sizeof(WinCharState));
1773 chr->chr_write = win_chr_write;
1774 qemu_chr_generic_open(chr);
1778 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1780 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1783 static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
1785 const char *file_out = qemu_opt_get(opts, "path");
1788 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1789 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1790 if (fd_out == INVALID_HANDLE_VALUE)
1793 return qemu_chr_open_win_file(fd_out);
1795 #endif /* !_WIN32 */
1797 /***********************************************************/
1798 /* UDP Net console */
1802 uint8_t buf[READ_BUF_LEN];
1808 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1810 NetCharDriver *s = chr->opaque;
1812 return send(s->fd, (const void *)buf, len, 0);
1815 static int udp_chr_read_poll(void *opaque)
1817 CharDriverState *chr = opaque;
1818 NetCharDriver *s = chr->opaque;
1820 s->max_size = qemu_chr_can_read(chr);
1822 /* If there were any stray characters in the queue process them
1825 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1826 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1828 s->max_size = qemu_chr_can_read(chr);
1833 static void udp_chr_read(void *opaque)
1835 CharDriverState *chr = opaque;
1836 NetCharDriver *s = chr->opaque;
1838 if (s->max_size == 0)
1840 s->bufcnt = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
1841 s->bufptr = s->bufcnt;
1846 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1847 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1849 s->max_size = qemu_chr_can_read(chr);
1853 static void udp_chr_update_read_handler(CharDriverState *chr)
1855 NetCharDriver *s = chr->opaque;
1858 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
1859 udp_chr_read, NULL, chr);
1863 static void udp_chr_close(CharDriverState *chr)
1865 NetCharDriver *s = chr->opaque;
1867 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1871 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1874 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
1876 CharDriverState *chr = NULL;
1877 NetCharDriver *s = NULL;
1880 chr = qemu_mallocz(sizeof(CharDriverState));
1881 s = qemu_mallocz(sizeof(NetCharDriver));
1883 fd = inet_dgram_opts(opts);
1885 fprintf(stderr, "inet_dgram_opts failed\n");
1893 chr->chr_write = udp_chr_write;
1894 chr->chr_update_read_handler = udp_chr_update_read_handler;
1895 chr->chr_close = udp_chr_close;
1908 /***********************************************************/
1909 /* TCP Net console */
1921 static void tcp_chr_accept(void *opaque);
1923 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1925 TCPCharDriver *s = chr->opaque;
1927 return send_all(s->fd, buf, len);
1929 /* XXX: indicate an error ? */
1934 static int tcp_chr_read_poll(void *opaque)
1936 CharDriverState *chr = opaque;
1937 TCPCharDriver *s = chr->opaque;
1940 s->max_size = qemu_chr_can_read(chr);
1945 #define IAC_BREAK 243
1946 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
1948 uint8_t *buf, int *size)
1950 /* Handle any telnet client's basic IAC options to satisfy char by
1951 * char mode with no echo. All IAC options will be removed from
1952 * the buf and the do_telnetopt variable will be used to track the
1953 * state of the width of the IAC information.
1955 * IAC commands come in sets of 3 bytes with the exception of the
1956 * "IAC BREAK" command and the double IAC.
1962 for (i = 0; i < *size; i++) {
1963 if (s->do_telnetopt > 1) {
1964 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
1965 /* Double IAC means send an IAC */
1969 s->do_telnetopt = 1;
1971 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
1972 /* Handle IAC break commands by sending a serial break */
1973 qemu_chr_event(chr, CHR_EVENT_BREAK);
1978 if (s->do_telnetopt >= 4) {
1979 s->do_telnetopt = 1;
1982 if ((unsigned char)buf[i] == IAC) {
1983 s->do_telnetopt = 2;
1994 static int tcp_get_msgfd(CharDriverState *chr)
1996 TCPCharDriver *s = chr->opaque;
2003 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2005 TCPCharDriver *s = chr->opaque;
2006 struct cmsghdr *cmsg;
2008 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2011 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2012 cmsg->cmsg_level != SOL_SOCKET ||
2013 cmsg->cmsg_type != SCM_RIGHTS)
2016 fd = *((int *)CMSG_DATA(cmsg));
2026 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2028 TCPCharDriver *s = chr->opaque;
2029 struct msghdr msg = { NULL, };
2030 struct iovec iov[1];
2032 struct cmsghdr cmsg;
2033 char control[CMSG_SPACE(sizeof(int))];
2037 iov[0].iov_base = buf;
2038 iov[0].iov_len = len;
2042 msg.msg_control = &msg_control;
2043 msg.msg_controllen = sizeof(msg_control);
2045 ret = recvmsg(s->fd, &msg, 0);
2046 if (ret > 0 && s->is_unix)
2047 unix_process_msgfd(chr, &msg);
2052 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2054 TCPCharDriver *s = chr->opaque;
2055 return recv(s->fd, buf, len, 0);
2059 static void tcp_chr_read(void *opaque)
2061 CharDriverState *chr = opaque;
2062 TCPCharDriver *s = chr->opaque;
2063 uint8_t buf[READ_BUF_LEN];
2066 if (!s->connected || s->max_size <= 0)
2069 if (len > s->max_size)
2071 size = tcp_chr_recv(chr, (void *)buf, len);
2073 /* connection closed */
2075 if (s->listen_fd >= 0) {
2076 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2078 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2081 qemu_chr_event(chr, CHR_EVENT_CLOSED);
2082 } else if (size > 0) {
2083 if (s->do_telnetopt)
2084 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2086 qemu_chr_read(chr, buf, size);
2090 static void tcp_chr_connect(void *opaque)
2092 CharDriverState *chr = opaque;
2093 TCPCharDriver *s = chr->opaque;
2096 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2097 tcp_chr_read, NULL, chr);
2098 qemu_chr_generic_open(chr);
2101 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2102 static void tcp_chr_telnet_init(int fd)
2105 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2106 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2107 send(fd, (char *)buf, 3, 0);
2108 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2109 send(fd, (char *)buf, 3, 0);
2110 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2111 send(fd, (char *)buf, 3, 0);
2112 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2113 send(fd, (char *)buf, 3, 0);
2116 static void socket_set_nodelay(int fd)
2119 setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
2122 static void tcp_chr_accept(void *opaque)
2124 CharDriverState *chr = opaque;
2125 TCPCharDriver *s = chr->opaque;
2126 struct sockaddr_in saddr;
2128 struct sockaddr_un uaddr;
2130 struct sockaddr *addr;
2137 len = sizeof(uaddr);
2138 addr = (struct sockaddr *)&uaddr;
2142 len = sizeof(saddr);
2143 addr = (struct sockaddr *)&saddr;
2145 fd = qemu_accept(s->listen_fd, addr, &len);
2146 if (fd < 0 && errno != EINTR) {
2148 } else if (fd >= 0) {
2149 if (s->do_telnetopt)
2150 tcp_chr_telnet_init(fd);
2154 socket_set_nonblock(fd);
2156 socket_set_nodelay(fd);
2158 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
2159 tcp_chr_connect(chr);
2162 static void tcp_chr_close(CharDriverState *chr)
2164 TCPCharDriver *s = chr->opaque;
2166 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2169 if (s->listen_fd >= 0) {
2170 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
2171 closesocket(s->listen_fd);
2174 qemu_chr_event(chr, CHR_EVENT_CLOSED);
2177 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2179 CharDriverState *chr = NULL;
2180 TCPCharDriver *s = NULL;
2188 is_listen = qemu_opt_get_bool(opts, "server", 0);
2189 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2190 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2191 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2192 is_unix = qemu_opt_get(opts, "path") != NULL;
2196 chr = qemu_mallocz(sizeof(CharDriverState));
2197 s = qemu_mallocz(sizeof(TCPCharDriver));
2201 fd = unix_listen_opts(opts);
2203 fd = unix_connect_opts(opts);
2207 fd = inet_listen_opts(opts, 0);
2209 fd = inet_connect_opts(opts);
2215 if (!is_waitconnect)
2216 socket_set_nonblock(fd);
2222 s->is_unix = is_unix;
2223 s->do_nodelay = do_nodelay && !is_unix;
2226 chr->chr_write = tcp_chr_write;
2227 chr->chr_close = tcp_chr_close;
2228 chr->get_msgfd = tcp_get_msgfd;
2232 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2234 s->do_telnetopt = 1;
2239 socket_set_nodelay(fd);
2240 tcp_chr_connect(chr);
2243 /* for "info chardev" monitor command */
2244 chr->filename = qemu_malloc(256);
2246 snprintf(chr->filename, 256, "unix:%s%s",
2247 qemu_opt_get(opts, "path"),
2248 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2249 } else if (is_telnet) {
2250 snprintf(chr->filename, 256, "telnet:%s:%s%s",
2251 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2252 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2254 snprintf(chr->filename, 256, "tcp:%s:%s%s",
2255 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2256 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2259 if (is_listen && is_waitconnect) {
2260 printf("QEMU waiting for connection on: %s\n",
2262 tcp_chr_accept(chr);
2263 socket_set_nonblock(s->listen_fd);
2275 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2277 char host[65], port[33], width[8], height[8];
2282 opts = qemu_opts_create(&qemu_chardev_opts, label, 1);
2286 if (strstart(filename, "mon:", &p)) {
2288 qemu_opt_set(opts, "mux", "on");
2291 if (strcmp(filename, "null") == 0 ||
2292 strcmp(filename, "pty") == 0 ||
2293 strcmp(filename, "msmouse") == 0 ||
2294 strcmp(filename, "braille") == 0 ||
2295 strcmp(filename, "stdio") == 0) {
2296 qemu_opt_set(opts, "backend", filename);
2299 if (strstart(filename, "vc", &p)) {
2300 qemu_opt_set(opts, "backend", "vc");
2302 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2304 qemu_opt_set(opts, "width", width);
2305 qemu_opt_set(opts, "height", height);
2306 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2308 qemu_opt_set(opts, "cols", width);
2309 qemu_opt_set(opts, "rows", height);
2316 if (strcmp(filename, "con:") == 0) {
2317 qemu_opt_set(opts, "backend", "console");
2320 if (strstart(filename, "COM", NULL)) {
2321 qemu_opt_set(opts, "backend", "serial");
2322 qemu_opt_set(opts, "path", filename);
2325 if (strstart(filename, "file:", &p)) {
2326 qemu_opt_set(opts, "backend", "file");
2327 qemu_opt_set(opts, "path", p);
2330 if (strstart(filename, "pipe:", &p)) {
2331 qemu_opt_set(opts, "backend", "pipe");
2332 qemu_opt_set(opts, "path", p);
2335 if (strstart(filename, "tcp:", &p) ||
2336 strstart(filename, "telnet:", &p)) {
2337 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2339 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2342 qemu_opt_set(opts, "backend", "socket");
2343 qemu_opt_set(opts, "host", host);
2344 qemu_opt_set(opts, "port", port);
2345 if (p[pos] == ',') {
2346 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2349 if (strstart(filename, "telnet:", &p))
2350 qemu_opt_set(opts, "telnet", "on");
2353 if (strstart(filename, "udp:", &p)) {
2354 qemu_opt_set(opts, "backend", "udp");
2355 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2357 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
2361 qemu_opt_set(opts, "host", host);
2362 qemu_opt_set(opts, "port", port);
2363 if (p[pos] == '@') {
2365 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2367 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2371 qemu_opt_set(opts, "localaddr", host);
2372 qemu_opt_set(opts, "localport", port);
2376 if (strstart(filename, "unix:", &p)) {
2377 qemu_opt_set(opts, "backend", "socket");
2378 if (qemu_opts_do_parse(opts, p, "path") != 0)
2382 if (strstart(filename, "/dev/parport", NULL) ||
2383 strstart(filename, "/dev/ppi", NULL)) {
2384 qemu_opt_set(opts, "backend", "parport");
2385 qemu_opt_set(opts, "path", filename);
2388 if (strstart(filename, "/dev/", NULL)) {
2389 qemu_opt_set(opts, "backend", "tty");
2390 qemu_opt_set(opts, "path", filename);
2395 qemu_opts_del(opts);
2399 static const struct {
2401 CharDriverState *(*open)(QemuOpts *opts);
2402 } backend_table[] = {
2403 { .name = "null", .open = qemu_chr_open_null },
2404 { .name = "socket", .open = qemu_chr_open_socket },
2405 { .name = "udp", .open = qemu_chr_open_udp },
2406 { .name = "msmouse", .open = qemu_chr_open_msmouse },
2407 { .name = "vc", .open = text_console_init },
2409 { .name = "file", .open = qemu_chr_open_win_file_out },
2410 { .name = "pipe", .open = qemu_chr_open_win_pipe },
2411 { .name = "console", .open = qemu_chr_open_win_con },
2412 { .name = "serial", .open = qemu_chr_open_win },
2414 { .name = "file", .open = qemu_chr_open_file_out },
2415 { .name = "pipe", .open = qemu_chr_open_pipe },
2416 { .name = "pty", .open = qemu_chr_open_pty },
2417 { .name = "stdio", .open = qemu_chr_open_stdio },
2419 #ifdef CONFIG_BRLAPI
2420 { .name = "braille", .open = chr_baum_init },
2422 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2423 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
2424 || defined(__FreeBSD_kernel__)
2425 { .name = "tty", .open = qemu_chr_open_tty },
2427 #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
2428 || defined(__FreeBSD_kernel__)
2429 { .name = "parport", .open = qemu_chr_open_pp },
2433 CharDriverState *qemu_chr_open_opts(QemuOpts *opts,
2434 void (*init)(struct CharDriverState *s))
2436 CharDriverState *chr;
2439 if (qemu_opts_id(opts) == NULL) {
2440 fprintf(stderr, "chardev: no id specified\n");
2444 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
2445 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
2448 if (i == ARRAY_SIZE(backend_table)) {
2449 fprintf(stderr, "chardev: backend \"%s\" not found\n",
2450 qemu_opt_get(opts, "backend"));
2454 chr = backend_table[i].open(opts);
2456 fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
2457 qemu_opt_get(opts, "backend"));
2462 chr->filename = qemu_strdup(qemu_opt_get(opts, "backend"));
2464 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2466 if (qemu_opt_get_bool(opts, "mux", 0)) {
2467 CharDriverState *base = chr;
2468 int len = strlen(qemu_opts_id(opts)) + 6;
2469 base->label = qemu_malloc(len);
2470 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
2471 chr = qemu_chr_open_mux(base);
2472 chr->filename = base->filename;
2473 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2475 chr->label = qemu_strdup(qemu_opts_id(opts));
2479 CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
2482 CharDriverState *chr;
2485 if (strstart(filename, "chardev:", &p)) {
2486 return qemu_chr_find(p);
2489 opts = qemu_chr_parse_compat(label, filename);
2493 chr = qemu_chr_open_opts(opts, init);
2494 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
2495 monitor_init(chr, MONITOR_USE_READLINE);
2500 void qemu_chr_close(CharDriverState *chr)
2502 QTAILQ_REMOVE(&chardevs, chr, next);
2504 chr->chr_close(chr);
2505 qemu_free(chr->filename);
2506 qemu_free(chr->label);
2510 static void qemu_chr_qlist_iter(QObject *obj, void *opaque)
2513 Monitor *mon = opaque;
2515 chr_dict = qobject_to_qdict(obj);
2516 monitor_printf(mon, "%s: filename=%s\n", qdict_get_str(chr_dict, "label"),
2517 qdict_get_str(chr_dict, "filename"));
2520 void qemu_chr_info_print(Monitor *mon, const QObject *ret_data)
2522 qlist_iter(qobject_to_qlist(ret_data), qemu_chr_qlist_iter, mon);
2525 void qemu_chr_info(Monitor *mon, QObject **ret_data)
2528 CharDriverState *chr;
2530 chr_list = qlist_new();
2532 QTAILQ_FOREACH(chr, &chardevs, next) {
2533 QObject *obj = qobject_from_jsonf("{ 'label': %s, 'filename': %s }",
2534 chr->label, chr->filename);
2535 qlist_append_obj(chr_list, obj);
2538 *ret_data = QOBJECT(chr_list);
2541 CharDriverState *qemu_chr_find(const char *name)
2543 CharDriverState *chr;
2545 QTAILQ_FOREACH(chr, &chardevs, next) {
2546 if (strcmp(chr->label, name) != 0)