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 int send_all(int fd, const void *_buf, int len1)
514 const uint8_t *buf = _buf;
518 ret = write(fd, buf, len);
520 if (errno != EINTR && errno != EAGAIN)
522 } else if (ret == 0) {
540 #define STDIO_MAX_CLIENTS 1
541 static int stdio_nb_clients = 0;
543 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
545 FDCharDriver *s = chr->opaque;
546 return send_all(s->fd_out, buf, len);
549 static int fd_chr_read_poll(void *opaque)
551 CharDriverState *chr = opaque;
552 FDCharDriver *s = chr->opaque;
554 s->max_size = qemu_chr_can_read(chr);
558 static void fd_chr_read(void *opaque)
560 CharDriverState *chr = opaque;
561 FDCharDriver *s = chr->opaque;
563 uint8_t buf[READ_BUF_LEN];
566 if (len > s->max_size)
570 size = read(s->fd_in, buf, len);
572 /* FD has been closed. Remove it from the active list. */
573 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
574 qemu_chr_event(chr, CHR_EVENT_CLOSED);
578 qemu_chr_read(chr, buf, size);
582 static void fd_chr_update_read_handler(CharDriverState *chr)
584 FDCharDriver *s = chr->opaque;
587 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
589 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
590 fd_chr_read, NULL, chr);
595 static void fd_chr_close(struct CharDriverState *chr)
597 FDCharDriver *s = chr->opaque;
600 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
602 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
607 qemu_chr_event(chr, CHR_EVENT_CLOSED);
610 /* open a character device to a unix fd */
611 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
613 CharDriverState *chr;
616 chr = qemu_mallocz(sizeof(CharDriverState));
617 s = qemu_mallocz(sizeof(FDCharDriver));
621 chr->chr_write = fd_chr_write;
622 chr->chr_update_read_handler = fd_chr_update_read_handler;
623 chr->chr_close = fd_chr_close;
625 qemu_chr_generic_open(chr);
630 static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
634 TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
635 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
638 return qemu_chr_open_fd(-1, fd_out);
641 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
644 char filename_in[256], filename_out[256];
645 const char *filename = qemu_opt_get(opts, "path");
647 if (filename == NULL) {
648 fprintf(stderr, "chardev: pipe: no filename given\n");
652 snprintf(filename_in, 256, "%s.in", filename);
653 snprintf(filename_out, 256, "%s.out", filename);
654 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
655 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
656 if (fd_in < 0 || fd_out < 0) {
661 TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY));
665 return qemu_chr_open_fd(fd_in, fd_out);
669 /* for STDIO, we handle the case where several clients use it
672 #define TERM_FIFO_MAX_SIZE 1
674 static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
675 static int term_fifo_size;
677 static int stdio_read_poll(void *opaque)
679 CharDriverState *chr = opaque;
681 /* try to flush the queue if needed */
682 if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) {
683 qemu_chr_read(chr, term_fifo, 1);
686 /* see if we can absorb more chars */
687 if (term_fifo_size == 0)
693 static void stdio_read(void *opaque)
697 CharDriverState *chr = opaque;
699 size = read(0, buf, 1);
701 /* stdin has been closed. Remove it from the active list. */
702 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
703 qemu_chr_event(chr, CHR_EVENT_CLOSED);
707 if (qemu_chr_can_read(chr) > 0) {
708 qemu_chr_read(chr, buf, 1);
709 } else if (term_fifo_size == 0) {
710 term_fifo[term_fifo_size++] = buf[0];
715 /* init terminal so that we can grab keys */
716 static struct termios oldtty;
717 static int old_fd0_flags;
718 static int term_atexit_done;
720 static void term_exit(void)
722 tcsetattr (0, TCSANOW, &oldtty);
723 fcntl(0, F_SETFL, old_fd0_flags);
726 static void term_init(QemuOpts *opts)
732 old_fd0_flags = fcntl(0, F_GETFL);
734 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
735 |INLCR|IGNCR|ICRNL|IXON);
736 tty.c_oflag |= OPOST;
737 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
738 /* if graphical mode, we allow Ctrl-C handling */
739 if (!qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC))
740 tty.c_lflag &= ~ISIG;
741 tty.c_cflag &= ~(CSIZE|PARENB);
746 tcsetattr (0, TCSANOW, &tty);
748 if (!term_atexit_done++)
751 fcntl(0, F_SETFL, O_NONBLOCK);
754 static void qemu_chr_close_stdio(struct CharDriverState *chr)
758 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
762 static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
764 CharDriverState *chr;
766 if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
768 chr = qemu_chr_open_fd(0, 1);
769 chr->chr_close = qemu_chr_close_stdio;
770 qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
778 /* Once Solaris has openpty(), this is going to be removed. */
779 static int openpty(int *amaster, int *aslave, char *name,
780 struct termios *termp, struct winsize *winp)
783 int mfd = -1, sfd = -1;
785 *amaster = *aslave = -1;
787 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
791 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
794 if ((slave = ptsname(mfd)) == NULL)
797 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
800 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
801 (termp != NULL && tcgetattr(sfd, termp) < 0))
809 ioctl(sfd, TIOCSWINSZ, winp);
820 static void cfmakeraw (struct termios *termios_p)
822 termios_p->c_iflag &=
823 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
824 termios_p->c_oflag &= ~OPOST;
825 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
826 termios_p->c_cflag &= ~(CSIZE|PARENB);
827 termios_p->c_cflag |= CS8;
829 termios_p->c_cc[VMIN] = 0;
830 termios_p->c_cc[VTIME] = 0;
834 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
835 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
836 || defined(__GLIBC__)
846 static void pty_chr_update_read_handler(CharDriverState *chr);
847 static void pty_chr_state(CharDriverState *chr, int connected);
849 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
851 PtyCharDriver *s = chr->opaque;
854 /* guest sends data, check for (re-)connect */
855 pty_chr_update_read_handler(chr);
858 return send_all(s->fd, buf, len);
861 static int pty_chr_read_poll(void *opaque)
863 CharDriverState *chr = opaque;
864 PtyCharDriver *s = chr->opaque;
866 s->read_bytes = qemu_chr_can_read(chr);
867 return s->read_bytes;
870 static void pty_chr_read(void *opaque)
872 CharDriverState *chr = opaque;
873 PtyCharDriver *s = chr->opaque;
875 uint8_t buf[READ_BUF_LEN];
878 if (len > s->read_bytes)
882 size = read(s->fd, buf, len);
883 if ((size == -1 && errno == EIO) ||
885 pty_chr_state(chr, 0);
889 pty_chr_state(chr, 1);
890 qemu_chr_read(chr, buf, size);
894 static void pty_chr_update_read_handler(CharDriverState *chr)
896 PtyCharDriver *s = chr->opaque;
898 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
899 pty_chr_read, NULL, chr);
902 * Short timeout here: just need wait long enougth that qemu makes
903 * it through the poll loop once. When reconnected we want a
904 * short timeout so we notice it almost instantly. Otherwise
905 * read() gives us -EIO instantly, making pty_chr_state() reset the
906 * timeout to the normal (much longer) poll interval before the
909 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
912 static void pty_chr_state(CharDriverState *chr, int connected)
914 PtyCharDriver *s = chr->opaque;
917 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
920 /* (re-)connect poll interval for idle guests: once per second.
921 * We check more frequently in case the guests sends data to
922 * the virtual device linked to our pty. */
923 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
926 qemu_chr_generic_open(chr);
931 static void pty_chr_timer(void *opaque)
933 struct CharDriverState *chr = opaque;
934 PtyCharDriver *s = chr->opaque;
939 /* If we arrive here without polling being cleared due
940 * read returning -EIO, then we are (re-)connected */
941 pty_chr_state(chr, 1);
946 pty_chr_update_read_handler(chr);
949 static void pty_chr_close(struct CharDriverState *chr)
951 PtyCharDriver *s = chr->opaque;
953 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
955 qemu_del_timer(s->timer);
956 qemu_free_timer(s->timer);
958 qemu_chr_event(chr, CHR_EVENT_CLOSED);
961 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
963 CharDriverState *chr;
967 #if defined(__OpenBSD__) || defined(__DragonFly__)
968 char pty_name[PATH_MAX];
969 #define q_ptsname(x) pty_name
971 char *pty_name = NULL;
972 #define q_ptsname(x) ptsname(x)
975 chr = qemu_mallocz(sizeof(CharDriverState));
976 s = qemu_mallocz(sizeof(PtyCharDriver));
978 if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) {
982 /* Set raw attributes on the pty. */
983 tcgetattr(slave_fd, &tty);
985 tcsetattr(slave_fd, TCSAFLUSH, &tty);
988 len = strlen(q_ptsname(s->fd)) + 5;
989 chr->filename = qemu_malloc(len);
990 snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
991 qemu_opt_set(opts, "path", q_ptsname(s->fd));
992 fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
995 chr->chr_write = pty_chr_write;
996 chr->chr_update_read_handler = pty_chr_update_read_handler;
997 chr->chr_close = pty_chr_close;
999 s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr);
1004 static void tty_serial_init(int fd, int speed,
1005 int parity, int data_bits, int stop_bits)
1011 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1012 speed, parity, data_bits, stop_bits);
1014 tcgetattr (fd, &tty);
1015 if (!term_atexit_done) {
1019 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1020 speed = speed * 10 / 11;
1037 /* Non-Posix values follow. They may be unsupported on some systems. */
1039 check_speed(115200);
1041 check_speed(230400);
1044 check_speed(460800);
1047 check_speed(500000);
1050 check_speed(576000);
1053 check_speed(921600);
1056 check_speed(1000000);
1059 check_speed(1152000);
1062 check_speed(1500000);
1065 check_speed(2000000);
1068 check_speed(2500000);
1071 check_speed(3000000);
1074 check_speed(3500000);
1077 check_speed(4000000);
1082 cfsetispeed(&tty, spd);
1083 cfsetospeed(&tty, spd);
1085 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1086 |INLCR|IGNCR|ICRNL|IXON);
1087 tty.c_oflag |= OPOST;
1088 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1089 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1110 tty.c_cflag |= PARENB;
1113 tty.c_cflag |= PARENB | PARODD;
1117 tty.c_cflag |= CSTOPB;
1119 tcsetattr (fd, TCSANOW, &tty);
1122 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1124 FDCharDriver *s = chr->opaque;
1127 case CHR_IOCTL_SERIAL_SET_PARAMS:
1129 QEMUSerialSetParams *ssp = arg;
1130 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1131 ssp->data_bits, ssp->stop_bits);
1134 case CHR_IOCTL_SERIAL_SET_BREAK:
1136 int enable = *(int *)arg;
1138 tcsendbreak(s->fd_in, 1);
1141 case CHR_IOCTL_SERIAL_GET_TIOCM:
1144 int *targ = (int *)arg;
1145 ioctl(s->fd_in, TIOCMGET, &sarg);
1147 if (sarg & TIOCM_CTS)
1148 *targ |= CHR_TIOCM_CTS;
1149 if (sarg & TIOCM_CAR)
1150 *targ |= CHR_TIOCM_CAR;
1151 if (sarg & TIOCM_DSR)
1152 *targ |= CHR_TIOCM_DSR;
1153 if (sarg & TIOCM_RI)
1154 *targ |= CHR_TIOCM_RI;
1155 if (sarg & TIOCM_DTR)
1156 *targ |= CHR_TIOCM_DTR;
1157 if (sarg & TIOCM_RTS)
1158 *targ |= CHR_TIOCM_RTS;
1161 case CHR_IOCTL_SERIAL_SET_TIOCM:
1163 int sarg = *(int *)arg;
1165 ioctl(s->fd_in, TIOCMGET, &targ);
1166 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1167 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1168 if (sarg & CHR_TIOCM_CTS)
1170 if (sarg & CHR_TIOCM_CAR)
1172 if (sarg & CHR_TIOCM_DSR)
1174 if (sarg & CHR_TIOCM_RI)
1176 if (sarg & CHR_TIOCM_DTR)
1178 if (sarg & CHR_TIOCM_RTS)
1180 ioctl(s->fd_in, TIOCMSET, &targ);
1189 static void tty_exit(void)
1191 tcsetattr(0, TCSANOW, &oldtty);
1194 static void qemu_chr_close_tty(CharDriverState *chr)
1196 FDCharDriver *s = chr->opaque;
1210 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1212 const char *filename = qemu_opt_get(opts, "path");
1213 CharDriverState *chr;
1216 TFR(fd = open(filename, O_RDWR | O_NONBLOCK));
1220 tty_serial_init(fd, 115200, 'N', 8, 1);
1221 chr = qemu_chr_open_fd(fd, fd);
1226 chr->chr_ioctl = tty_serial_ioctl;
1227 chr->chr_close = qemu_chr_close_tty;
1228 if (!term_atexit_done++)
1232 #else /* ! __linux__ && ! __sun__ */
1233 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
1237 #endif /* __linux__ || __sun__ */
1239 #if defined(__linux__)
1243 } ParallelCharDriver;
1245 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1247 if (s->mode != mode) {
1249 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1256 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1258 ParallelCharDriver *drv = chr->opaque;
1263 case CHR_IOCTL_PP_READ_DATA:
1264 if (ioctl(fd, PPRDATA, &b) < 0)
1266 *(uint8_t *)arg = b;
1268 case CHR_IOCTL_PP_WRITE_DATA:
1269 b = *(uint8_t *)arg;
1270 if (ioctl(fd, PPWDATA, &b) < 0)
1273 case CHR_IOCTL_PP_READ_CONTROL:
1274 if (ioctl(fd, PPRCONTROL, &b) < 0)
1276 /* Linux gives only the lowest bits, and no way to know data
1277 direction! For better compatibility set the fixed upper
1279 *(uint8_t *)arg = b | 0xc0;
1281 case CHR_IOCTL_PP_WRITE_CONTROL:
1282 b = *(uint8_t *)arg;
1283 if (ioctl(fd, PPWCONTROL, &b) < 0)
1286 case CHR_IOCTL_PP_READ_STATUS:
1287 if (ioctl(fd, PPRSTATUS, &b) < 0)
1289 *(uint8_t *)arg = b;
1291 case CHR_IOCTL_PP_DATA_DIR:
1292 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1295 case CHR_IOCTL_PP_EPP_READ_ADDR:
1296 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1297 struct ParallelIOArg *parg = arg;
1298 int n = read(fd, parg->buffer, parg->count);
1299 if (n != parg->count) {
1304 case CHR_IOCTL_PP_EPP_READ:
1305 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1306 struct ParallelIOArg *parg = arg;
1307 int n = read(fd, parg->buffer, parg->count);
1308 if (n != parg->count) {
1313 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1314 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1315 struct ParallelIOArg *parg = arg;
1316 int n = write(fd, parg->buffer, parg->count);
1317 if (n != parg->count) {
1322 case CHR_IOCTL_PP_EPP_WRITE:
1323 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1324 struct ParallelIOArg *parg = arg;
1325 int n = write(fd, parg->buffer, parg->count);
1326 if (n != parg->count) {
1337 static void pp_close(CharDriverState *chr)
1339 ParallelCharDriver *drv = chr->opaque;
1342 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1343 ioctl(fd, PPRELEASE);
1346 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1349 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1351 const char *filename = qemu_opt_get(opts, "path");
1352 CharDriverState *chr;
1353 ParallelCharDriver *drv;
1356 TFR(fd = open(filename, O_RDWR));
1360 if (ioctl(fd, PPCLAIM) < 0) {
1365 drv = qemu_mallocz(sizeof(ParallelCharDriver));
1367 drv->mode = IEEE1284_MODE_COMPAT;
1369 chr = qemu_mallocz(sizeof(CharDriverState));
1370 chr->chr_write = null_chr_write;
1371 chr->chr_ioctl = pp_ioctl;
1372 chr->chr_close = pp_close;
1375 qemu_chr_generic_open(chr);
1379 #endif /* __linux__ */
1381 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1382 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1384 int fd = (int)(long)chr->opaque;
1388 case CHR_IOCTL_PP_READ_DATA:
1389 if (ioctl(fd, PPIGDATA, &b) < 0)
1391 *(uint8_t *)arg = b;
1393 case CHR_IOCTL_PP_WRITE_DATA:
1394 b = *(uint8_t *)arg;
1395 if (ioctl(fd, PPISDATA, &b) < 0)
1398 case CHR_IOCTL_PP_READ_CONTROL:
1399 if (ioctl(fd, PPIGCTRL, &b) < 0)
1401 *(uint8_t *)arg = b;
1403 case CHR_IOCTL_PP_WRITE_CONTROL:
1404 b = *(uint8_t *)arg;
1405 if (ioctl(fd, PPISCTRL, &b) < 0)
1408 case CHR_IOCTL_PP_READ_STATUS:
1409 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1411 *(uint8_t *)arg = b;
1419 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1421 const char *filename = qemu_opt_get(opts, "path");
1422 CharDriverState *chr;
1425 fd = open(filename, O_RDWR);
1429 chr = qemu_mallocz(sizeof(CharDriverState));
1430 chr->opaque = (void *)(long)fd;
1431 chr->chr_write = null_chr_write;
1432 chr->chr_ioctl = pp_ioctl;
1441 HANDLE hcom, hrecv, hsend;
1442 OVERLAPPED orecv, osend;
1447 #define NSENDBUF 2048
1448 #define NRECVBUF 2048
1449 #define MAXCONNECT 1
1450 #define NTIMEOUT 5000
1452 static int win_chr_poll(void *opaque);
1453 static int win_chr_pipe_poll(void *opaque);
1455 static void win_chr_close(CharDriverState *chr)
1457 WinCharState *s = chr->opaque;
1460 CloseHandle(s->hsend);
1464 CloseHandle(s->hrecv);
1468 CloseHandle(s->hcom);
1472 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1474 qemu_del_polling_cb(win_chr_poll, chr);
1476 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1479 static int win_chr_init(CharDriverState *chr, const char *filename)
1481 WinCharState *s = chr->opaque;
1483 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1488 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1490 fprintf(stderr, "Failed CreateEvent\n");
1493 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1495 fprintf(stderr, "Failed CreateEvent\n");
1499 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1500 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1501 if (s->hcom == INVALID_HANDLE_VALUE) {
1502 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1507 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1508 fprintf(stderr, "Failed SetupComm\n");
1512 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1513 size = sizeof(COMMCONFIG);
1514 GetDefaultCommConfig(filename, &comcfg, &size);
1515 comcfg.dcb.DCBlength = sizeof(DCB);
1516 CommConfigDialog(filename, NULL, &comcfg);
1518 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1519 fprintf(stderr, "Failed SetCommState\n");
1523 if (!SetCommMask(s->hcom, EV_ERR)) {
1524 fprintf(stderr, "Failed SetCommMask\n");
1528 cto.ReadIntervalTimeout = MAXDWORD;
1529 if (!SetCommTimeouts(s->hcom, &cto)) {
1530 fprintf(stderr, "Failed SetCommTimeouts\n");
1534 if (!ClearCommError(s->hcom, &err, &comstat)) {
1535 fprintf(stderr, "Failed ClearCommError\n");
1538 qemu_add_polling_cb(win_chr_poll, chr);
1546 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1548 WinCharState *s = chr->opaque;
1549 DWORD len, ret, size, err;
1552 ZeroMemory(&s->osend, sizeof(s->osend));
1553 s->osend.hEvent = s->hsend;
1556 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1558 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1560 err = GetLastError();
1561 if (err == ERROR_IO_PENDING) {
1562 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1580 static int win_chr_read_poll(CharDriverState *chr)
1582 WinCharState *s = chr->opaque;
1584 s->max_size = qemu_chr_can_read(chr);
1588 static void win_chr_readfile(CharDriverState *chr)
1590 WinCharState *s = chr->opaque;
1592 uint8_t buf[READ_BUF_LEN];
1595 ZeroMemory(&s->orecv, sizeof(s->orecv));
1596 s->orecv.hEvent = s->hrecv;
1597 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1599 err = GetLastError();
1600 if (err == ERROR_IO_PENDING) {
1601 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1606 qemu_chr_read(chr, buf, size);
1610 static void win_chr_read(CharDriverState *chr)
1612 WinCharState *s = chr->opaque;
1614 if (s->len > s->max_size)
1615 s->len = s->max_size;
1619 win_chr_readfile(chr);
1622 static int win_chr_poll(void *opaque)
1624 CharDriverState *chr = opaque;
1625 WinCharState *s = chr->opaque;
1629 ClearCommError(s->hcom, &comerr, &status);
1630 if (status.cbInQue > 0) {
1631 s->len = status.cbInQue;
1632 win_chr_read_poll(chr);
1639 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1641 const char *filename = qemu_opt_get(opts, "path");
1642 CharDriverState *chr;
1645 chr = qemu_mallocz(sizeof(CharDriverState));
1646 s = qemu_mallocz(sizeof(WinCharState));
1648 chr->chr_write = win_chr_write;
1649 chr->chr_close = win_chr_close;
1651 if (win_chr_init(chr, filename) < 0) {
1656 qemu_chr_generic_open(chr);
1660 static int win_chr_pipe_poll(void *opaque)
1662 CharDriverState *chr = opaque;
1663 WinCharState *s = chr->opaque;
1666 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1669 win_chr_read_poll(chr);
1676 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1678 WinCharState *s = chr->opaque;
1686 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1688 fprintf(stderr, "Failed CreateEvent\n");
1691 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1693 fprintf(stderr, "Failed CreateEvent\n");
1697 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1698 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1699 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1701 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1702 if (s->hcom == INVALID_HANDLE_VALUE) {
1703 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1708 ZeroMemory(&ov, sizeof(ov));
1709 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1710 ret = ConnectNamedPipe(s->hcom, &ov);
1712 fprintf(stderr, "Failed ConnectNamedPipe\n");
1716 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1718 fprintf(stderr, "Failed GetOverlappedResult\n");
1720 CloseHandle(ov.hEvent);
1727 CloseHandle(ov.hEvent);
1730 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1739 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1741 const char *filename = qemu_opt_get(opts, "path");
1742 CharDriverState *chr;
1745 chr = qemu_mallocz(sizeof(CharDriverState));
1746 s = qemu_mallocz(sizeof(WinCharState));
1748 chr->chr_write = win_chr_write;
1749 chr->chr_close = win_chr_close;
1751 if (win_chr_pipe_init(chr, filename) < 0) {
1756 qemu_chr_generic_open(chr);
1760 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1762 CharDriverState *chr;
1765 chr = qemu_mallocz(sizeof(CharDriverState));
1766 s = qemu_mallocz(sizeof(WinCharState));
1769 chr->chr_write = win_chr_write;
1770 qemu_chr_generic_open(chr);
1774 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1776 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1779 static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
1781 const char *file_out = qemu_opt_get(opts, "path");
1784 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1785 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1786 if (fd_out == INVALID_HANDLE_VALUE)
1789 return qemu_chr_open_win_file(fd_out);
1791 #endif /* !_WIN32 */
1793 /***********************************************************/
1794 /* UDP Net console */
1798 uint8_t buf[READ_BUF_LEN];
1804 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1806 NetCharDriver *s = chr->opaque;
1808 return send(s->fd, (const void *)buf, len, 0);
1811 static int udp_chr_read_poll(void *opaque)
1813 CharDriverState *chr = opaque;
1814 NetCharDriver *s = chr->opaque;
1816 s->max_size = qemu_chr_can_read(chr);
1818 /* If there were any stray characters in the queue process them
1821 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1822 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1824 s->max_size = qemu_chr_can_read(chr);
1829 static void udp_chr_read(void *opaque)
1831 CharDriverState *chr = opaque;
1832 NetCharDriver *s = chr->opaque;
1834 if (s->max_size == 0)
1836 s->bufcnt = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
1837 s->bufptr = s->bufcnt;
1842 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1843 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1845 s->max_size = qemu_chr_can_read(chr);
1849 static void udp_chr_update_read_handler(CharDriverState *chr)
1851 NetCharDriver *s = chr->opaque;
1854 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
1855 udp_chr_read, NULL, chr);
1859 static void udp_chr_close(CharDriverState *chr)
1861 NetCharDriver *s = chr->opaque;
1863 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1867 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1870 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
1872 CharDriverState *chr = NULL;
1873 NetCharDriver *s = NULL;
1876 chr = qemu_mallocz(sizeof(CharDriverState));
1877 s = qemu_mallocz(sizeof(NetCharDriver));
1879 fd = inet_dgram_opts(opts);
1881 fprintf(stderr, "inet_dgram_opts failed\n");
1889 chr->chr_write = udp_chr_write;
1890 chr->chr_update_read_handler = udp_chr_update_read_handler;
1891 chr->chr_close = udp_chr_close;
1904 /***********************************************************/
1905 /* TCP Net console */
1917 static void tcp_chr_accept(void *opaque);
1919 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1921 TCPCharDriver *s = chr->opaque;
1923 return send_all(s->fd, buf, len);
1925 /* XXX: indicate an error ? */
1930 static int tcp_chr_read_poll(void *opaque)
1932 CharDriverState *chr = opaque;
1933 TCPCharDriver *s = chr->opaque;
1936 s->max_size = qemu_chr_can_read(chr);
1941 #define IAC_BREAK 243
1942 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
1944 uint8_t *buf, int *size)
1946 /* Handle any telnet client's basic IAC options to satisfy char by
1947 * char mode with no echo. All IAC options will be removed from
1948 * the buf and the do_telnetopt variable will be used to track the
1949 * state of the width of the IAC information.
1951 * IAC commands come in sets of 3 bytes with the exception of the
1952 * "IAC BREAK" command and the double IAC.
1958 for (i = 0; i < *size; i++) {
1959 if (s->do_telnetopt > 1) {
1960 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
1961 /* Double IAC means send an IAC */
1965 s->do_telnetopt = 1;
1967 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
1968 /* Handle IAC break commands by sending a serial break */
1969 qemu_chr_event(chr, CHR_EVENT_BREAK);
1974 if (s->do_telnetopt >= 4) {
1975 s->do_telnetopt = 1;
1978 if ((unsigned char)buf[i] == IAC) {
1979 s->do_telnetopt = 2;
1990 static int tcp_get_msgfd(CharDriverState *chr)
1992 TCPCharDriver *s = chr->opaque;
1999 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
2001 TCPCharDriver *s = chr->opaque;
2002 struct cmsghdr *cmsg;
2004 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
2007 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
2008 cmsg->cmsg_level != SOL_SOCKET ||
2009 cmsg->cmsg_type != SCM_RIGHTS)
2012 fd = *((int *)CMSG_DATA(cmsg));
2022 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2024 TCPCharDriver *s = chr->opaque;
2025 struct msghdr msg = { NULL, };
2026 struct iovec iov[1];
2028 struct cmsghdr cmsg;
2029 char control[CMSG_SPACE(sizeof(int))];
2033 iov[0].iov_base = buf;
2034 iov[0].iov_len = len;
2038 msg.msg_control = &msg_control;
2039 msg.msg_controllen = sizeof(msg_control);
2041 ret = recvmsg(s->fd, &msg, 0);
2042 if (ret > 0 && s->is_unix)
2043 unix_process_msgfd(chr, &msg);
2048 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2050 TCPCharDriver *s = chr->opaque;
2051 return recv(s->fd, buf, len, 0);
2055 static void tcp_chr_read(void *opaque)
2057 CharDriverState *chr = opaque;
2058 TCPCharDriver *s = chr->opaque;
2059 uint8_t buf[READ_BUF_LEN];
2062 if (!s->connected || s->max_size <= 0)
2065 if (len > s->max_size)
2067 size = tcp_chr_recv(chr, (void *)buf, len);
2069 /* connection closed */
2071 if (s->listen_fd >= 0) {
2072 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2074 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2077 qemu_chr_event(chr, CHR_EVENT_CLOSED);
2078 } else if (size > 0) {
2079 if (s->do_telnetopt)
2080 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2082 qemu_chr_read(chr, buf, size);
2087 CharDriverState *qemu_chr_open_eventfd(int eventfd)
2089 return qemu_chr_open_fd(eventfd, eventfd);
2093 static void tcp_chr_connect(void *opaque)
2095 CharDriverState *chr = opaque;
2096 TCPCharDriver *s = chr->opaque;
2099 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2100 tcp_chr_read, NULL, chr);
2101 qemu_chr_generic_open(chr);
2104 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2105 static void tcp_chr_telnet_init(int fd)
2108 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2109 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2110 send(fd, (char *)buf, 3, 0);
2111 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2112 send(fd, (char *)buf, 3, 0);
2113 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2114 send(fd, (char *)buf, 3, 0);
2115 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2116 send(fd, (char *)buf, 3, 0);
2119 static void socket_set_nodelay(int fd)
2122 setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
2125 static void tcp_chr_accept(void *opaque)
2127 CharDriverState *chr = opaque;
2128 TCPCharDriver *s = chr->opaque;
2129 struct sockaddr_in saddr;
2131 struct sockaddr_un uaddr;
2133 struct sockaddr *addr;
2140 len = sizeof(uaddr);
2141 addr = (struct sockaddr *)&uaddr;
2145 len = sizeof(saddr);
2146 addr = (struct sockaddr *)&saddr;
2148 fd = qemu_accept(s->listen_fd, addr, &len);
2149 if (fd < 0 && errno != EINTR) {
2151 } else if (fd >= 0) {
2152 if (s->do_telnetopt)
2153 tcp_chr_telnet_init(fd);
2157 socket_set_nonblock(fd);
2159 socket_set_nodelay(fd);
2161 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
2162 tcp_chr_connect(chr);
2165 static void tcp_chr_close(CharDriverState *chr)
2167 TCPCharDriver *s = chr->opaque;
2169 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2172 if (s->listen_fd >= 0) {
2173 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
2174 closesocket(s->listen_fd);
2177 qemu_chr_event(chr, CHR_EVENT_CLOSED);
2180 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2182 CharDriverState *chr = NULL;
2183 TCPCharDriver *s = NULL;
2191 is_listen = qemu_opt_get_bool(opts, "server", 0);
2192 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2193 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2194 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2195 is_unix = qemu_opt_get(opts, "path") != NULL;
2199 chr = qemu_mallocz(sizeof(CharDriverState));
2200 s = qemu_mallocz(sizeof(TCPCharDriver));
2204 fd = unix_listen_opts(opts);
2206 fd = unix_connect_opts(opts);
2210 fd = inet_listen_opts(opts, 0);
2212 fd = inet_connect_opts(opts);
2218 if (!is_waitconnect)
2219 socket_set_nonblock(fd);
2225 s->is_unix = is_unix;
2226 s->do_nodelay = do_nodelay && !is_unix;
2229 chr->chr_write = tcp_chr_write;
2230 chr->chr_close = tcp_chr_close;
2231 chr->get_msgfd = tcp_get_msgfd;
2235 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2237 s->do_telnetopt = 1;
2242 socket_set_nodelay(fd);
2243 tcp_chr_connect(chr);
2246 /* for "info chardev" monitor command */
2247 chr->filename = qemu_malloc(256);
2249 snprintf(chr->filename, 256, "unix:%s%s",
2250 qemu_opt_get(opts, "path"),
2251 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2252 } else if (is_telnet) {
2253 snprintf(chr->filename, 256, "telnet:%s:%s%s",
2254 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2255 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2257 snprintf(chr->filename, 256, "tcp:%s:%s%s",
2258 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2259 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2262 if (is_listen && is_waitconnect) {
2263 printf("QEMU waiting for connection on: %s\n",
2265 tcp_chr_accept(chr);
2266 socket_set_nonblock(s->listen_fd);
2278 /***********************************************************/
2279 /* Memory chardev */
2282 size_t outbuf_capacity;
2286 static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
2288 MemoryDriver *d = chr->opaque;
2290 /* TODO: the QString implementation has the same code, we should
2291 * introduce a generic way to do this in cutils.c */
2292 if (d->outbuf_capacity < d->outbuf_size + len) {
2294 d->outbuf_capacity += len;
2295 d->outbuf_capacity *= 2;
2296 d->outbuf = qemu_realloc(d->outbuf, d->outbuf_capacity);
2299 memcpy(d->outbuf + d->outbuf_size, buf, len);
2300 d->outbuf_size += len;
2305 void qemu_chr_init_mem(CharDriverState *chr)
2309 d = qemu_malloc(sizeof(*d));
2311 d->outbuf_capacity = 4096;
2312 d->outbuf = qemu_mallocz(d->outbuf_capacity);
2314 memset(chr, 0, sizeof(*chr));
2316 chr->chr_write = mem_chr_write;
2319 QString *qemu_chr_mem_to_qs(CharDriverState *chr)
2321 MemoryDriver *d = chr->opaque;
2322 return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
2325 /* NOTE: this driver can not be closed with qemu_chr_close()! */
2326 void qemu_chr_close_mem(CharDriverState *chr)
2328 MemoryDriver *d = chr->opaque;
2330 qemu_free(d->outbuf);
2331 qemu_free(chr->opaque);
2333 chr->chr_write = NULL;
2336 size_t qemu_chr_mem_osize(const CharDriverState *chr)
2338 const MemoryDriver *d = chr->opaque;
2339 return d->outbuf_size;
2342 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2344 char host[65], port[33], width[8], height[8];
2349 opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1);
2353 if (strstart(filename, "mon:", &p)) {
2355 qemu_opt_set(opts, "mux", "on");
2358 if (strcmp(filename, "null") == 0 ||
2359 strcmp(filename, "pty") == 0 ||
2360 strcmp(filename, "msmouse") == 0 ||
2361 strcmp(filename, "braille") == 0 ||
2362 strcmp(filename, "stdio") == 0) {
2363 qemu_opt_set(opts, "backend", filename);
2366 if (strstart(filename, "vc", &p)) {
2367 qemu_opt_set(opts, "backend", "vc");
2369 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2371 qemu_opt_set(opts, "width", width);
2372 qemu_opt_set(opts, "height", height);
2373 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2375 qemu_opt_set(opts, "cols", width);
2376 qemu_opt_set(opts, "rows", height);
2383 if (strcmp(filename, "con:") == 0) {
2384 qemu_opt_set(opts, "backend", "console");
2387 if (strstart(filename, "COM", NULL)) {
2388 qemu_opt_set(opts, "backend", "serial");
2389 qemu_opt_set(opts, "path", filename);
2392 if (strstart(filename, "file:", &p)) {
2393 qemu_opt_set(opts, "backend", "file");
2394 qemu_opt_set(opts, "path", p);
2397 if (strstart(filename, "pipe:", &p)) {
2398 qemu_opt_set(opts, "backend", "pipe");
2399 qemu_opt_set(opts, "path", p);
2402 if (strstart(filename, "tcp:", &p) ||
2403 strstart(filename, "telnet:", &p)) {
2404 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2406 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2409 qemu_opt_set(opts, "backend", "socket");
2410 qemu_opt_set(opts, "host", host);
2411 qemu_opt_set(opts, "port", port);
2412 if (p[pos] == ',') {
2413 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2416 if (strstart(filename, "telnet:", &p))
2417 qemu_opt_set(opts, "telnet", "on");
2420 if (strstart(filename, "udp:", &p)) {
2421 qemu_opt_set(opts, "backend", "udp");
2422 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2424 if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) {
2428 qemu_opt_set(opts, "host", host);
2429 qemu_opt_set(opts, "port", port);
2430 if (p[pos] == '@') {
2432 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2434 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2438 qemu_opt_set(opts, "localaddr", host);
2439 qemu_opt_set(opts, "localport", port);
2443 if (strstart(filename, "unix:", &p)) {
2444 qemu_opt_set(opts, "backend", "socket");
2445 if (qemu_opts_do_parse(opts, p, "path") != 0)
2449 if (strstart(filename, "/dev/parport", NULL) ||
2450 strstart(filename, "/dev/ppi", NULL)) {
2451 qemu_opt_set(opts, "backend", "parport");
2452 qemu_opt_set(opts, "path", filename);
2455 if (strstart(filename, "/dev/", NULL)) {
2456 qemu_opt_set(opts, "backend", "tty");
2457 qemu_opt_set(opts, "path", filename);
2462 qemu_opts_del(opts);
2466 static const struct {
2468 CharDriverState *(*open)(QemuOpts *opts);
2469 } backend_table[] = {
2470 { .name = "null", .open = qemu_chr_open_null },
2471 { .name = "socket", .open = qemu_chr_open_socket },
2472 { .name = "udp", .open = qemu_chr_open_udp },
2473 { .name = "msmouse", .open = qemu_chr_open_msmouse },
2474 { .name = "vc", .open = text_console_init },
2476 { .name = "file", .open = qemu_chr_open_win_file_out },
2477 { .name = "pipe", .open = qemu_chr_open_win_pipe },
2478 { .name = "console", .open = qemu_chr_open_win_con },
2479 { .name = "serial", .open = qemu_chr_open_win },
2481 { .name = "file", .open = qemu_chr_open_file_out },
2482 { .name = "pipe", .open = qemu_chr_open_pipe },
2483 { .name = "pty", .open = qemu_chr_open_pty },
2484 { .name = "stdio", .open = qemu_chr_open_stdio },
2486 #ifdef CONFIG_BRLAPI
2487 { .name = "braille", .open = chr_baum_init },
2489 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2490 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
2491 || defined(__FreeBSD_kernel__)
2492 { .name = "tty", .open = qemu_chr_open_tty },
2494 #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
2495 || defined(__FreeBSD_kernel__)
2496 { .name = "parport", .open = qemu_chr_open_pp },
2500 CharDriverState *qemu_chr_open_opts(QemuOpts *opts,
2501 void (*init)(struct CharDriverState *s))
2503 CharDriverState *chr;
2506 if (qemu_opts_id(opts) == NULL) {
2507 fprintf(stderr, "chardev: no id specified\n");
2511 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
2512 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
2515 if (i == ARRAY_SIZE(backend_table)) {
2516 fprintf(stderr, "chardev: backend \"%s\" not found\n",
2517 qemu_opt_get(opts, "backend"));
2521 chr = backend_table[i].open(opts);
2523 fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
2524 qemu_opt_get(opts, "backend"));
2529 chr->filename = qemu_strdup(qemu_opt_get(opts, "backend"));
2531 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2533 if (qemu_opt_get_bool(opts, "mux", 0)) {
2534 CharDriverState *base = chr;
2535 int len = strlen(qemu_opts_id(opts)) + 6;
2536 base->label = qemu_malloc(len);
2537 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
2538 chr = qemu_chr_open_mux(base);
2539 chr->filename = base->filename;
2540 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2542 chr->label = qemu_strdup(qemu_opts_id(opts));
2546 CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
2549 CharDriverState *chr;
2552 if (strstart(filename, "chardev:", &p)) {
2553 return qemu_chr_find(p);
2556 opts = qemu_chr_parse_compat(label, filename);
2560 chr = qemu_chr_open_opts(opts, init);
2561 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
2562 monitor_init(chr, MONITOR_USE_READLINE);
2567 void qemu_chr_close(CharDriverState *chr)
2569 QTAILQ_REMOVE(&chardevs, chr, next);
2571 chr->chr_close(chr);
2572 qemu_free(chr->filename);
2573 qemu_free(chr->label);
2577 static void qemu_chr_qlist_iter(QObject *obj, void *opaque)
2580 Monitor *mon = opaque;
2582 chr_dict = qobject_to_qdict(obj);
2583 monitor_printf(mon, "%s: filename=%s\n", qdict_get_str(chr_dict, "label"),
2584 qdict_get_str(chr_dict, "filename"));
2587 void qemu_chr_info_print(Monitor *mon, const QObject *ret_data)
2589 qlist_iter(qobject_to_qlist(ret_data), qemu_chr_qlist_iter, mon);
2592 void qemu_chr_info(Monitor *mon, QObject **ret_data)
2595 CharDriverState *chr;
2597 chr_list = qlist_new();
2599 QTAILQ_FOREACH(chr, &chardevs, next) {
2600 QObject *obj = qobject_from_jsonf("{ 'label': %s, 'filename': %s }",
2601 chr->label, chr->filename);
2602 qlist_append_obj(chr_list, obj);
2605 *ret_data = QOBJECT(chr_list);
2608 CharDriverState *qemu_chr_find(const char *name)
2610 CharDriverState *chr;
2612 QTAILQ_FOREACH(chr, &chardevs, next) {
2613 if (strcmp(chr->label, name) != 0)