4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu-common.h"
29 #include "qemu-timer.h"
30 #include "qemu-char.h"
34 #include "hw/msmouse.h"
35 #include "qemu-objects.h"
46 #include <sys/times.h>
50 #include <sys/ioctl.h>
51 #include <sys/resource.h>
52 #include <sys/socket.h>
53 #include <netinet/in.h>
55 #include <arpa/inet.h>
58 #include <sys/select.h>
61 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
63 #include <dev/ppbus/ppi.h>
64 #include <dev/ppbus/ppbconf.h>
65 #if defined(__GLIBC__)
68 #elif defined(__DragonFly__)
70 #include <dev/misc/ppi/ppi.h>
71 #include <bus/ppbus/ppbconf.h>
79 #include <linux/ppdev.h>
80 #include <linux/parport.h>
84 #include <sys/ethernet.h>
85 #include <sys/sockio.h>
86 #include <netinet/arp.h>
87 #include <netinet/in.h>
88 #include <netinet/in_systm.h>
89 #include <netinet/ip.h>
90 #include <netinet/ip_icmp.h> // must come after ip.h
91 #include <netinet/udp.h>
92 #include <netinet/tcp.h>
100 #include "qemu_socket.h"
102 #define READ_BUF_LEN 4096
104 /***********************************************************/
105 /* character device */
107 static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
108 QTAILQ_HEAD_INITIALIZER(chardevs);
110 static void qemu_chr_event(CharDriverState *s, int event)
114 s->chr_event(s->handler_opaque, event);
117 static void qemu_chr_generic_open_bh(void *opaque)
119 CharDriverState *s = opaque;
120 qemu_chr_event(s, CHR_EVENT_OPENED);
121 qemu_bh_delete(s->bh);
125 void qemu_chr_generic_open(CharDriverState *s)
128 s->bh = qemu_bh_new(qemu_chr_generic_open_bh, s);
129 qemu_bh_schedule(s->bh);
133 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
135 return s->chr_write(s, buf, len);
138 int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg)
142 return s->chr_ioctl(s, cmd, arg);
145 int qemu_chr_can_read(CharDriverState *s)
147 if (!s->chr_can_read)
149 return s->chr_can_read(s->handler_opaque);
152 void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len)
154 s->chr_read(s->handler_opaque, buf, len);
157 int qemu_chr_get_msgfd(CharDriverState *s)
159 return s->get_msgfd ? s->get_msgfd(s) : -1;
162 void qemu_chr_accept_input(CharDriverState *s)
164 if (s->chr_accept_input)
165 s->chr_accept_input(s);
168 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
170 char buf[READ_BUF_LEN];
173 vsnprintf(buf, sizeof(buf), fmt, ap);
174 qemu_chr_write(s, (uint8_t *)buf, strlen(buf));
178 void qemu_chr_send_event(CharDriverState *s, int event)
180 if (s->chr_send_event)
181 s->chr_send_event(s, event);
184 void qemu_chr_add_handlers(CharDriverState *s,
185 IOCanRWHandler *fd_can_read,
186 IOReadHandler *fd_read,
187 IOEventHandler *fd_event,
190 s->chr_can_read = fd_can_read;
191 s->chr_read = fd_read;
192 s->chr_event = fd_event;
193 s->handler_opaque = opaque;
194 if (s->chr_update_read_handler)
195 s->chr_update_read_handler(s);
198 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
203 static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
205 CharDriverState *chr;
207 chr = qemu_mallocz(sizeof(CharDriverState));
208 chr->chr_write = null_chr_write;
212 /* MUX driver for serial I/O splitting */
214 #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
215 #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
217 IOCanRWHandler *chr_can_read[MAX_MUX];
218 IOReadHandler *chr_read[MAX_MUX];
219 IOEventHandler *chr_event[MAX_MUX];
220 void *ext_opaque[MAX_MUX];
221 CharDriverState *drv;
226 /* Intermediate input buffer allows to catch escape sequences even if the
227 currently active device is not accepting any input - but only until it
229 unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
234 int64_t timestamps_start;
238 static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
240 MuxDriver *d = chr->opaque;
242 if (!d->timestamps) {
243 ret = d->drv->chr_write(d->drv, buf, len);
248 for (i = 0; i < len; i++) {
254 ti = qemu_get_clock(rt_clock);
255 if (d->timestamps_start == -1)
256 d->timestamps_start = ti;
257 ti -= d->timestamps_start;
259 snprintf(buf1, sizeof(buf1),
260 "[%02d:%02d:%02d.%03d] ",
265 d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
268 ret += d->drv->chr_write(d->drv, buf+i, 1);
269 if (buf[i] == '\n') {
277 static const char * const mux_help[] = {
278 "% h print this help\n\r",
279 "% x exit emulator\n\r",
280 "% s save disk data back to file (if -snapshot)\n\r",
281 "% t toggle console timestamps\n\r"
282 "% b send break (magic sysrq)\n\r",
283 "% c switch between console and monitor\n\r",
288 int term_escape_char = 0x01; /* ctrl-a is used for escape */
289 static void mux_print_help(CharDriverState *chr)
292 char ebuf[15] = "Escape-Char";
293 char cbuf[50] = "\n\r";
295 if (term_escape_char > 0 && term_escape_char < 26) {
296 snprintf(cbuf, sizeof(cbuf), "\n\r");
297 snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
299 snprintf(cbuf, sizeof(cbuf),
300 "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
303 chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
304 for (i = 0; mux_help[i] != NULL; i++) {
305 for (j=0; mux_help[i][j] != '\0'; j++) {
306 if (mux_help[i][j] == '%')
307 chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
309 chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
314 static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
316 if (d->chr_event[mux_nr])
317 d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
320 static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
322 if (d->term_got_escape) {
323 d->term_got_escape = 0;
324 if (ch == term_escape_char)
333 const char *term = "QEMU: Terminated\n\r";
334 chr->chr_write(chr,(uint8_t *)term,strlen(term));
341 QTAILQ_FOREACH(dinfo, &drives, next) {
342 bdrv_commit(dinfo->bdrv);
347 qemu_chr_event(chr, CHR_EVENT_BREAK);
350 /* Switch to the next registered device */
351 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
353 if (d->focus >= d->mux_cnt)
355 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
358 d->timestamps = !d->timestamps;
359 d->timestamps_start = -1;
363 } else if (ch == term_escape_char) {
364 d->term_got_escape = 1;
372 static void mux_chr_accept_input(CharDriverState *chr)
374 MuxDriver *d = chr->opaque;
377 while (d->prod[m] != d->cons[m] &&
378 d->chr_can_read[m] &&
379 d->chr_can_read[m](d->ext_opaque[m])) {
380 d->chr_read[m](d->ext_opaque[m],
381 &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
385 static int mux_chr_can_read(void *opaque)
387 CharDriverState *chr = opaque;
388 MuxDriver *d = chr->opaque;
391 if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
393 if (d->chr_can_read[m])
394 return d->chr_can_read[m](d->ext_opaque[m]);
398 static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
400 CharDriverState *chr = opaque;
401 MuxDriver *d = chr->opaque;
405 mux_chr_accept_input (opaque);
407 for(i = 0; i < size; i++)
408 if (mux_proc_byte(chr, d, buf[i])) {
409 if (d->prod[m] == d->cons[m] &&
410 d->chr_can_read[m] &&
411 d->chr_can_read[m](d->ext_opaque[m]))
412 d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
414 d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
418 static void mux_chr_event(void *opaque, int event)
420 CharDriverState *chr = opaque;
421 MuxDriver *d = chr->opaque;
424 /* Send the event to all registered listeners */
425 for (i = 0; i < d->mux_cnt; i++)
426 mux_chr_send_event(d, i, event);
429 static void mux_chr_update_read_handler(CharDriverState *chr)
431 MuxDriver *d = chr->opaque;
433 if (d->mux_cnt >= MAX_MUX) {
434 fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
437 d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
438 d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
439 d->chr_read[d->mux_cnt] = chr->chr_read;
440 d->chr_event[d->mux_cnt] = chr->chr_event;
441 /* Fix up the real driver with mux routines */
442 if (d->mux_cnt == 0) {
443 qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
446 if (d->focus != -1) {
447 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT);
449 d->focus = d->mux_cnt;
451 mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN);
454 static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
456 CharDriverState *chr;
459 chr = qemu_mallocz(sizeof(CharDriverState));
460 d = qemu_mallocz(sizeof(MuxDriver));
465 chr->chr_write = mux_chr_write;
466 chr->chr_update_read_handler = mux_chr_update_read_handler;
467 chr->chr_accept_input = mux_chr_accept_input;
473 int send_all(int fd, const void *buf, int len1)
479 ret = send(fd, buf, len, 0);
481 errno = WSAGetLastError();
482 if (errno != WSAEWOULDBLOCK) {
485 } else if (ret == 0) {
497 static int unix_write(int fd, const uint8_t *buf, int len1)
503 ret = write(fd, buf, len);
505 if (errno != EINTR && errno != EAGAIN)
507 } else if (ret == 0) {
517 int send_all(int fd, const void *buf, int len1)
519 return unix_write(fd, buf, len1);
530 #define STDIO_MAX_CLIENTS 1
531 static int stdio_nb_clients = 0;
533 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
535 FDCharDriver *s = chr->opaque;
536 return send_all(s->fd_out, buf, len);
539 static int fd_chr_read_poll(void *opaque)
541 CharDriverState *chr = opaque;
542 FDCharDriver *s = chr->opaque;
544 s->max_size = qemu_chr_can_read(chr);
548 static void fd_chr_read(void *opaque)
550 CharDriverState *chr = opaque;
551 FDCharDriver *s = chr->opaque;
553 uint8_t buf[READ_BUF_LEN];
556 if (len > s->max_size)
560 size = read(s->fd_in, buf, len);
562 /* FD has been closed. Remove it from the active list. */
563 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
564 qemu_chr_event(chr, CHR_EVENT_CLOSED);
568 qemu_chr_read(chr, buf, size);
572 static void fd_chr_update_read_handler(CharDriverState *chr)
574 FDCharDriver *s = chr->opaque;
577 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
579 qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
580 fd_chr_read, NULL, chr);
585 static void fd_chr_close(struct CharDriverState *chr)
587 FDCharDriver *s = chr->opaque;
590 if (display_type == DT_NOGRAPHIC && s->fd_in == 0) {
592 qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
597 qemu_chr_event(chr, CHR_EVENT_CLOSED);
600 /* open a character device to a unix fd */
601 static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
603 CharDriverState *chr;
606 chr = qemu_mallocz(sizeof(CharDriverState));
607 s = qemu_mallocz(sizeof(FDCharDriver));
611 chr->chr_write = fd_chr_write;
612 chr->chr_update_read_handler = fd_chr_update_read_handler;
613 chr->chr_close = fd_chr_close;
615 qemu_chr_generic_open(chr);
620 static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
624 TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
625 O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
628 return qemu_chr_open_fd(-1, fd_out);
631 static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
634 char filename_in[256], filename_out[256];
635 const char *filename = qemu_opt_get(opts, "path");
637 if (filename == NULL) {
638 fprintf(stderr, "chardev: pipe: no filename given\n");
642 snprintf(filename_in, 256, "%s.in", filename);
643 snprintf(filename_out, 256, "%s.out", filename);
644 TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
645 TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
646 if (fd_in < 0 || fd_out < 0) {
651 TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY));
655 return qemu_chr_open_fd(fd_in, fd_out);
659 /* for STDIO, we handle the case where several clients use it
662 #define TERM_FIFO_MAX_SIZE 1
664 static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
665 static int term_fifo_size;
667 static int stdio_read_poll(void *opaque)
669 CharDriverState *chr = opaque;
671 /* try to flush the queue if needed */
672 if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) {
673 qemu_chr_read(chr, term_fifo, 1);
676 /* see if we can absorb more chars */
677 if (term_fifo_size == 0)
683 static void stdio_read(void *opaque)
687 CharDriverState *chr = opaque;
689 size = read(0, buf, 1);
691 /* stdin has been closed. Remove it from the active list. */
692 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
693 qemu_chr_event(chr, CHR_EVENT_CLOSED);
697 if (qemu_chr_can_read(chr) > 0) {
698 qemu_chr_read(chr, buf, 1);
699 } else if (term_fifo_size == 0) {
700 term_fifo[term_fifo_size++] = buf[0];
705 /* init terminal so that we can grab keys */
706 static struct termios oldtty;
707 static int old_fd0_flags;
708 static int term_atexit_done;
710 static void term_exit(void)
712 tcsetattr (0, TCSANOW, &oldtty);
713 fcntl(0, F_SETFL, old_fd0_flags);
716 static void term_init(QemuOpts *opts)
722 old_fd0_flags = fcntl(0, F_GETFL);
724 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
725 |INLCR|IGNCR|ICRNL|IXON);
726 tty.c_oflag |= OPOST;
727 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
728 /* if graphical mode, we allow Ctrl-C handling */
729 if (!qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC))
730 tty.c_lflag &= ~ISIG;
731 tty.c_cflag &= ~(CSIZE|PARENB);
736 tcsetattr (0, TCSANOW, &tty);
738 if (!term_atexit_done++)
741 fcntl(0, F_SETFL, O_NONBLOCK);
744 static void qemu_chr_close_stdio(struct CharDriverState *chr)
748 qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
752 static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
754 CharDriverState *chr;
756 if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
758 chr = qemu_chr_open_fd(0, 1);
759 chr->chr_close = qemu_chr_close_stdio;
760 qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
768 /* Once Solaris has openpty(), this is going to be removed. */
769 static int openpty(int *amaster, int *aslave, char *name,
770 struct termios *termp, struct winsize *winp)
773 int mfd = -1, sfd = -1;
775 *amaster = *aslave = -1;
777 mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
781 if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
784 if ((slave = ptsname(mfd)) == NULL)
787 if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
790 if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
791 (termp != NULL && tcgetattr(sfd, termp) < 0))
799 ioctl(sfd, TIOCSWINSZ, winp);
810 static void cfmakeraw (struct termios *termios_p)
812 termios_p->c_iflag &=
813 ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
814 termios_p->c_oflag &= ~OPOST;
815 termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
816 termios_p->c_cflag &= ~(CSIZE|PARENB);
817 termios_p->c_cflag |= CS8;
819 termios_p->c_cc[VMIN] = 0;
820 termios_p->c_cc[VTIME] = 0;
824 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
825 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
826 || defined(__GLIBC__)
836 static void pty_chr_update_read_handler(CharDriverState *chr);
837 static void pty_chr_state(CharDriverState *chr, int connected);
839 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
841 PtyCharDriver *s = chr->opaque;
844 /* guest sends data, check for (re-)connect */
845 pty_chr_update_read_handler(chr);
848 return send_all(s->fd, buf, len);
851 static int pty_chr_read_poll(void *opaque)
853 CharDriverState *chr = opaque;
854 PtyCharDriver *s = chr->opaque;
856 s->read_bytes = qemu_chr_can_read(chr);
857 return s->read_bytes;
860 static void pty_chr_read(void *opaque)
862 CharDriverState *chr = opaque;
863 PtyCharDriver *s = chr->opaque;
865 uint8_t buf[READ_BUF_LEN];
868 if (len > s->read_bytes)
872 size = read(s->fd, buf, len);
873 if ((size == -1 && errno == EIO) ||
875 pty_chr_state(chr, 0);
879 pty_chr_state(chr, 1);
880 qemu_chr_read(chr, buf, size);
884 static void pty_chr_update_read_handler(CharDriverState *chr)
886 PtyCharDriver *s = chr->opaque;
888 qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
889 pty_chr_read, NULL, chr);
892 * Short timeout here: just need wait long enougth that qemu makes
893 * it through the poll loop once. When reconnected we want a
894 * short timeout so we notice it almost instantly. Otherwise
895 * read() gives us -EIO instantly, making pty_chr_state() reset the
896 * timeout to the normal (much longer) poll interval before the
899 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
902 static void pty_chr_state(CharDriverState *chr, int connected)
904 PtyCharDriver *s = chr->opaque;
907 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
910 /* (re-)connect poll interval for idle guests: once per second.
911 * We check more frequently in case the guests sends data to
912 * the virtual device linked to our pty. */
913 qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
916 qemu_chr_generic_open(chr);
921 static void pty_chr_timer(void *opaque)
923 struct CharDriverState *chr = opaque;
924 PtyCharDriver *s = chr->opaque;
929 /* If we arrive here without polling being cleared due
930 * read returning -EIO, then we are (re-)connected */
931 pty_chr_state(chr, 1);
936 pty_chr_update_read_handler(chr);
939 static void pty_chr_close(struct CharDriverState *chr)
941 PtyCharDriver *s = chr->opaque;
943 qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
945 qemu_del_timer(s->timer);
946 qemu_free_timer(s->timer);
948 qemu_chr_event(chr, CHR_EVENT_CLOSED);
951 static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
953 CharDriverState *chr;
957 #if defined(__OpenBSD__) || defined(__DragonFly__)
958 char pty_name[PATH_MAX];
959 #define q_ptsname(x) pty_name
961 char *pty_name = NULL;
962 #define q_ptsname(x) ptsname(x)
965 chr = qemu_mallocz(sizeof(CharDriverState));
966 s = qemu_mallocz(sizeof(PtyCharDriver));
968 if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) {
972 /* Set raw attributes on the pty. */
973 tcgetattr(slave_fd, &tty);
975 tcsetattr(slave_fd, TCSAFLUSH, &tty);
978 len = strlen(q_ptsname(s->fd)) + 5;
979 chr->filename = qemu_malloc(len);
980 snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
981 qemu_opt_set(opts, "path", q_ptsname(s->fd));
982 fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
985 chr->chr_write = pty_chr_write;
986 chr->chr_update_read_handler = pty_chr_update_read_handler;
987 chr->chr_close = pty_chr_close;
989 s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr);
994 static void tty_serial_init(int fd, int speed,
995 int parity, int data_bits, int stop_bits)
1001 printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
1002 speed, parity, data_bits, stop_bits);
1004 tcgetattr (fd, &tty);
1006 #define check_speed(val) if (speed <= val) { spd = B##val; break; }
1007 speed = speed * 10 / 11;
1024 /* Non-Posix values follow. They may be unsupported on some systems. */
1026 check_speed(115200);
1028 check_speed(230400);
1031 check_speed(460800);
1034 check_speed(500000);
1037 check_speed(576000);
1040 check_speed(921600);
1043 check_speed(1000000);
1046 check_speed(1152000);
1049 check_speed(1500000);
1052 check_speed(2000000);
1055 check_speed(2500000);
1058 check_speed(3000000);
1061 check_speed(3500000);
1064 check_speed(4000000);
1069 cfsetispeed(&tty, spd);
1070 cfsetospeed(&tty, spd);
1072 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1073 |INLCR|IGNCR|ICRNL|IXON);
1074 tty.c_oflag |= OPOST;
1075 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
1076 tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
1097 tty.c_cflag |= PARENB;
1100 tty.c_cflag |= PARENB | PARODD;
1104 tty.c_cflag |= CSTOPB;
1106 tcsetattr (fd, TCSANOW, &tty);
1109 static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
1111 FDCharDriver *s = chr->opaque;
1114 case CHR_IOCTL_SERIAL_SET_PARAMS:
1116 QEMUSerialSetParams *ssp = arg;
1117 tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
1118 ssp->data_bits, ssp->stop_bits);
1121 case CHR_IOCTL_SERIAL_SET_BREAK:
1123 int enable = *(int *)arg;
1125 tcsendbreak(s->fd_in, 1);
1128 case CHR_IOCTL_SERIAL_GET_TIOCM:
1131 int *targ = (int *)arg;
1132 ioctl(s->fd_in, TIOCMGET, &sarg);
1134 if (sarg & TIOCM_CTS)
1135 *targ |= CHR_TIOCM_CTS;
1136 if (sarg & TIOCM_CAR)
1137 *targ |= CHR_TIOCM_CAR;
1138 if (sarg & TIOCM_DSR)
1139 *targ |= CHR_TIOCM_DSR;
1140 if (sarg & TIOCM_RI)
1141 *targ |= CHR_TIOCM_RI;
1142 if (sarg & TIOCM_DTR)
1143 *targ |= CHR_TIOCM_DTR;
1144 if (sarg & TIOCM_RTS)
1145 *targ |= CHR_TIOCM_RTS;
1148 case CHR_IOCTL_SERIAL_SET_TIOCM:
1150 int sarg = *(int *)arg;
1152 ioctl(s->fd_in, TIOCMGET, &targ);
1153 targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
1154 | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
1155 if (sarg & CHR_TIOCM_CTS)
1157 if (sarg & CHR_TIOCM_CAR)
1159 if (sarg & CHR_TIOCM_DSR)
1161 if (sarg & CHR_TIOCM_RI)
1163 if (sarg & CHR_TIOCM_DTR)
1165 if (sarg & CHR_TIOCM_RTS)
1167 ioctl(s->fd_in, TIOCMSET, &targ);
1176 static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
1178 const char *filename = qemu_opt_get(opts, "path");
1179 CharDriverState *chr;
1182 TFR(fd = open(filename, O_RDWR | O_NONBLOCK));
1186 tty_serial_init(fd, 115200, 'N', 8, 1);
1187 chr = qemu_chr_open_fd(fd, fd);
1192 chr->chr_ioctl = tty_serial_ioctl;
1195 #else /* ! __linux__ && ! __sun__ */
1196 static CharDriverState *qemu_chr_open_pty(void)
1200 #endif /* __linux__ || __sun__ */
1202 #if defined(__linux__)
1206 } ParallelCharDriver;
1208 static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
1210 if (s->mode != mode) {
1212 if (ioctl(s->fd, PPSETMODE, &m) < 0)
1219 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1221 ParallelCharDriver *drv = chr->opaque;
1226 case CHR_IOCTL_PP_READ_DATA:
1227 if (ioctl(fd, PPRDATA, &b) < 0)
1229 *(uint8_t *)arg = b;
1231 case CHR_IOCTL_PP_WRITE_DATA:
1232 b = *(uint8_t *)arg;
1233 if (ioctl(fd, PPWDATA, &b) < 0)
1236 case CHR_IOCTL_PP_READ_CONTROL:
1237 if (ioctl(fd, PPRCONTROL, &b) < 0)
1239 /* Linux gives only the lowest bits, and no way to know data
1240 direction! For better compatibility set the fixed upper
1242 *(uint8_t *)arg = b | 0xc0;
1244 case CHR_IOCTL_PP_WRITE_CONTROL:
1245 b = *(uint8_t *)arg;
1246 if (ioctl(fd, PPWCONTROL, &b) < 0)
1249 case CHR_IOCTL_PP_READ_STATUS:
1250 if (ioctl(fd, PPRSTATUS, &b) < 0)
1252 *(uint8_t *)arg = b;
1254 case CHR_IOCTL_PP_DATA_DIR:
1255 if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
1258 case CHR_IOCTL_PP_EPP_READ_ADDR:
1259 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1260 struct ParallelIOArg *parg = arg;
1261 int n = read(fd, parg->buffer, parg->count);
1262 if (n != parg->count) {
1267 case CHR_IOCTL_PP_EPP_READ:
1268 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1269 struct ParallelIOArg *parg = arg;
1270 int n = read(fd, parg->buffer, parg->count);
1271 if (n != parg->count) {
1276 case CHR_IOCTL_PP_EPP_WRITE_ADDR:
1277 if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
1278 struct ParallelIOArg *parg = arg;
1279 int n = write(fd, parg->buffer, parg->count);
1280 if (n != parg->count) {
1285 case CHR_IOCTL_PP_EPP_WRITE:
1286 if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
1287 struct ParallelIOArg *parg = arg;
1288 int n = write(fd, parg->buffer, parg->count);
1289 if (n != parg->count) {
1300 static void pp_close(CharDriverState *chr)
1302 ParallelCharDriver *drv = chr->opaque;
1305 pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
1306 ioctl(fd, PPRELEASE);
1309 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1312 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1314 const char *filename = qemu_opt_get(opts, "path");
1315 CharDriverState *chr;
1316 ParallelCharDriver *drv;
1319 TFR(fd = open(filename, O_RDWR));
1323 if (ioctl(fd, PPCLAIM) < 0) {
1328 drv = qemu_mallocz(sizeof(ParallelCharDriver));
1330 drv->mode = IEEE1284_MODE_COMPAT;
1332 chr = qemu_mallocz(sizeof(CharDriverState));
1333 chr->chr_write = null_chr_write;
1334 chr->chr_ioctl = pp_ioctl;
1335 chr->chr_close = pp_close;
1338 qemu_chr_generic_open(chr);
1342 #endif /* __linux__ */
1344 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
1345 static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
1347 int fd = (int)chr->opaque;
1351 case CHR_IOCTL_PP_READ_DATA:
1352 if (ioctl(fd, PPIGDATA, &b) < 0)
1354 *(uint8_t *)arg = b;
1356 case CHR_IOCTL_PP_WRITE_DATA:
1357 b = *(uint8_t *)arg;
1358 if (ioctl(fd, PPISDATA, &b) < 0)
1361 case CHR_IOCTL_PP_READ_CONTROL:
1362 if (ioctl(fd, PPIGCTRL, &b) < 0)
1364 *(uint8_t *)arg = b;
1366 case CHR_IOCTL_PP_WRITE_CONTROL:
1367 b = *(uint8_t *)arg;
1368 if (ioctl(fd, PPISCTRL, &b) < 0)
1371 case CHR_IOCTL_PP_READ_STATUS:
1372 if (ioctl(fd, PPIGSTATUS, &b) < 0)
1374 *(uint8_t *)arg = b;
1382 static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
1384 const char *filename = qemu_opt_get(opts, "path");
1385 CharDriverState *chr;
1388 fd = open(filename, O_RDWR);
1392 chr = qemu_mallocz(sizeof(CharDriverState));
1393 chr->opaque = (void *)fd;
1394 chr->chr_write = null_chr_write;
1395 chr->chr_ioctl = pp_ioctl;
1404 HANDLE hcom, hrecv, hsend;
1405 OVERLAPPED orecv, osend;
1410 #define NSENDBUF 2048
1411 #define NRECVBUF 2048
1412 #define MAXCONNECT 1
1413 #define NTIMEOUT 5000
1415 static int win_chr_poll(void *opaque);
1416 static int win_chr_pipe_poll(void *opaque);
1418 static void win_chr_close(CharDriverState *chr)
1420 WinCharState *s = chr->opaque;
1423 CloseHandle(s->hsend);
1427 CloseHandle(s->hrecv);
1431 CloseHandle(s->hcom);
1435 qemu_del_polling_cb(win_chr_pipe_poll, chr);
1437 qemu_del_polling_cb(win_chr_poll, chr);
1439 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1442 static int win_chr_init(CharDriverState *chr, const char *filename)
1444 WinCharState *s = chr->opaque;
1446 COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
1451 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1453 fprintf(stderr, "Failed CreateEvent\n");
1456 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1458 fprintf(stderr, "Failed CreateEvent\n");
1462 s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
1463 OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
1464 if (s->hcom == INVALID_HANDLE_VALUE) {
1465 fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
1470 if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
1471 fprintf(stderr, "Failed SetupComm\n");
1475 ZeroMemory(&comcfg, sizeof(COMMCONFIG));
1476 size = sizeof(COMMCONFIG);
1477 GetDefaultCommConfig(filename, &comcfg, &size);
1478 comcfg.dcb.DCBlength = sizeof(DCB);
1479 CommConfigDialog(filename, NULL, &comcfg);
1481 if (!SetCommState(s->hcom, &comcfg.dcb)) {
1482 fprintf(stderr, "Failed SetCommState\n");
1486 if (!SetCommMask(s->hcom, EV_ERR)) {
1487 fprintf(stderr, "Failed SetCommMask\n");
1491 cto.ReadIntervalTimeout = MAXDWORD;
1492 if (!SetCommTimeouts(s->hcom, &cto)) {
1493 fprintf(stderr, "Failed SetCommTimeouts\n");
1497 if (!ClearCommError(s->hcom, &err, &comstat)) {
1498 fprintf(stderr, "Failed ClearCommError\n");
1501 qemu_add_polling_cb(win_chr_poll, chr);
1509 static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
1511 WinCharState *s = chr->opaque;
1512 DWORD len, ret, size, err;
1515 ZeroMemory(&s->osend, sizeof(s->osend));
1516 s->osend.hEvent = s->hsend;
1519 ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
1521 ret = WriteFile(s->hcom, buf, len, &size, NULL);
1523 err = GetLastError();
1524 if (err == ERROR_IO_PENDING) {
1525 ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
1543 static int win_chr_read_poll(CharDriverState *chr)
1545 WinCharState *s = chr->opaque;
1547 s->max_size = qemu_chr_can_read(chr);
1551 static void win_chr_readfile(CharDriverState *chr)
1553 WinCharState *s = chr->opaque;
1555 uint8_t buf[READ_BUF_LEN];
1558 ZeroMemory(&s->orecv, sizeof(s->orecv));
1559 s->orecv.hEvent = s->hrecv;
1560 ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
1562 err = GetLastError();
1563 if (err == ERROR_IO_PENDING) {
1564 ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
1569 qemu_chr_read(chr, buf, size);
1573 static void win_chr_read(CharDriverState *chr)
1575 WinCharState *s = chr->opaque;
1577 if (s->len > s->max_size)
1578 s->len = s->max_size;
1582 win_chr_readfile(chr);
1585 static int win_chr_poll(void *opaque)
1587 CharDriverState *chr = opaque;
1588 WinCharState *s = chr->opaque;
1592 ClearCommError(s->hcom, &comerr, &status);
1593 if (status.cbInQue > 0) {
1594 s->len = status.cbInQue;
1595 win_chr_read_poll(chr);
1602 static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
1604 const char *filename = qemu_opt_get(opts, "path");
1605 CharDriverState *chr;
1608 chr = qemu_mallocz(sizeof(CharDriverState));
1609 s = qemu_mallocz(sizeof(WinCharState));
1611 chr->chr_write = win_chr_write;
1612 chr->chr_close = win_chr_close;
1614 if (win_chr_init(chr, filename) < 0) {
1619 qemu_chr_generic_open(chr);
1623 static int win_chr_pipe_poll(void *opaque)
1625 CharDriverState *chr = opaque;
1626 WinCharState *s = chr->opaque;
1629 PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
1632 win_chr_read_poll(chr);
1639 static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
1641 WinCharState *s = chr->opaque;
1649 s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
1651 fprintf(stderr, "Failed CreateEvent\n");
1654 s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
1656 fprintf(stderr, "Failed CreateEvent\n");
1660 snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
1661 s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1662 PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
1664 MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
1665 if (s->hcom == INVALID_HANDLE_VALUE) {
1666 fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
1671 ZeroMemory(&ov, sizeof(ov));
1672 ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
1673 ret = ConnectNamedPipe(s->hcom, &ov);
1675 fprintf(stderr, "Failed ConnectNamedPipe\n");
1679 ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
1681 fprintf(stderr, "Failed GetOverlappedResult\n");
1683 CloseHandle(ov.hEvent);
1690 CloseHandle(ov.hEvent);
1693 qemu_add_polling_cb(win_chr_pipe_poll, chr);
1702 static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
1704 const char *filename = qemu_opt_get(opts, "path");
1705 CharDriverState *chr;
1708 chr = qemu_mallocz(sizeof(CharDriverState));
1709 s = qemu_mallocz(sizeof(WinCharState));
1711 chr->chr_write = win_chr_write;
1712 chr->chr_close = win_chr_close;
1714 if (win_chr_pipe_init(chr, filename) < 0) {
1719 qemu_chr_generic_open(chr);
1723 static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
1725 CharDriverState *chr;
1728 chr = qemu_mallocz(sizeof(CharDriverState));
1729 s = qemu_mallocz(sizeof(WinCharState));
1732 chr->chr_write = win_chr_write;
1733 qemu_chr_generic_open(chr);
1737 static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
1739 return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
1742 static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
1744 const char *file_out = qemu_opt_get(opts, "path");
1747 fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
1748 OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
1749 if (fd_out == INVALID_HANDLE_VALUE)
1752 return qemu_chr_open_win_file(fd_out);
1754 #endif /* !_WIN32 */
1756 /***********************************************************/
1757 /* UDP Net console */
1761 uint8_t buf[READ_BUF_LEN];
1767 static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1769 NetCharDriver *s = chr->opaque;
1771 return send(s->fd, (const void *)buf, len, 0);
1774 static int udp_chr_read_poll(void *opaque)
1776 CharDriverState *chr = opaque;
1777 NetCharDriver *s = chr->opaque;
1779 s->max_size = qemu_chr_can_read(chr);
1781 /* If there were any stray characters in the queue process them
1784 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1785 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1787 s->max_size = qemu_chr_can_read(chr);
1792 static void udp_chr_read(void *opaque)
1794 CharDriverState *chr = opaque;
1795 NetCharDriver *s = chr->opaque;
1797 if (s->max_size == 0)
1799 s->bufcnt = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
1800 s->bufptr = s->bufcnt;
1805 while (s->max_size > 0 && s->bufptr < s->bufcnt) {
1806 qemu_chr_read(chr, &s->buf[s->bufptr], 1);
1808 s->max_size = qemu_chr_can_read(chr);
1812 static void udp_chr_update_read_handler(CharDriverState *chr)
1814 NetCharDriver *s = chr->opaque;
1817 qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
1818 udp_chr_read, NULL, chr);
1822 static void udp_chr_close(CharDriverState *chr)
1824 NetCharDriver *s = chr->opaque;
1826 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
1830 qemu_chr_event(chr, CHR_EVENT_CLOSED);
1833 static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
1835 CharDriverState *chr = NULL;
1836 NetCharDriver *s = NULL;
1839 chr = qemu_mallocz(sizeof(CharDriverState));
1840 s = qemu_mallocz(sizeof(NetCharDriver));
1842 fd = inet_dgram_opts(opts);
1844 fprintf(stderr, "inet_dgram_opts failed\n");
1852 chr->chr_write = udp_chr_write;
1853 chr->chr_update_read_handler = udp_chr_update_read_handler;
1854 chr->chr_close = udp_chr_close;
1867 /***********************************************************/
1868 /* TCP Net console */
1880 static void tcp_chr_accept(void *opaque);
1882 static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1884 TCPCharDriver *s = chr->opaque;
1886 return send_all(s->fd, buf, len);
1888 /* XXX: indicate an error ? */
1893 static int tcp_chr_read_poll(void *opaque)
1895 CharDriverState *chr = opaque;
1896 TCPCharDriver *s = chr->opaque;
1899 s->max_size = qemu_chr_can_read(chr);
1904 #define IAC_BREAK 243
1905 static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
1907 uint8_t *buf, int *size)
1909 /* Handle any telnet client's basic IAC options to satisfy char by
1910 * char mode with no echo. All IAC options will be removed from
1911 * the buf and the do_telnetopt variable will be used to track the
1912 * state of the width of the IAC information.
1914 * IAC commands come in sets of 3 bytes with the exception of the
1915 * "IAC BREAK" command and the double IAC.
1921 for (i = 0; i < *size; i++) {
1922 if (s->do_telnetopt > 1) {
1923 if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
1924 /* Double IAC means send an IAC */
1928 s->do_telnetopt = 1;
1930 if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
1931 /* Handle IAC break commands by sending a serial break */
1932 qemu_chr_event(chr, CHR_EVENT_BREAK);
1937 if (s->do_telnetopt >= 4) {
1938 s->do_telnetopt = 1;
1941 if ((unsigned char)buf[i] == IAC) {
1942 s->do_telnetopt = 2;
1953 static int tcp_get_msgfd(CharDriverState *chr)
1955 TCPCharDriver *s = chr->opaque;
1961 static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
1963 TCPCharDriver *s = chr->opaque;
1964 struct cmsghdr *cmsg;
1966 for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
1969 if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) ||
1970 cmsg->cmsg_level != SOL_SOCKET ||
1971 cmsg->cmsg_type != SCM_RIGHTS)
1974 fd = *((int *)CMSG_DATA(cmsg));
1984 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
1986 TCPCharDriver *s = chr->opaque;
1987 struct msghdr msg = { NULL, };
1988 struct iovec iov[1];
1990 struct cmsghdr cmsg;
1991 char control[CMSG_SPACE(sizeof(int))];
1995 iov[0].iov_base = buf;
1996 iov[0].iov_len = len;
2000 msg.msg_control = &msg_control;
2001 msg.msg_controllen = sizeof(msg_control);
2003 ret = recvmsg(s->fd, &msg, 0);
2004 if (ret > 0 && s->is_unix)
2005 unix_process_msgfd(chr, &msg);
2010 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
2012 TCPCharDriver *s = chr->opaque;
2013 return recv(s->fd, buf, len, 0);
2017 static void tcp_chr_read(void *opaque)
2019 CharDriverState *chr = opaque;
2020 TCPCharDriver *s = chr->opaque;
2021 uint8_t buf[READ_BUF_LEN];
2024 if (!s->connected || s->max_size <= 0)
2027 if (len > s->max_size)
2029 size = tcp_chr_recv(chr, (void *)buf, len);
2031 /* connection closed */
2033 if (s->listen_fd >= 0) {
2034 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2036 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2039 qemu_chr_event(chr, CHR_EVENT_CLOSED);
2040 } else if (size > 0) {
2041 if (s->do_telnetopt)
2042 tcp_chr_process_IAC_bytes(chr, s, buf, &size);
2044 qemu_chr_read(chr, buf, size);
2045 if (s->msgfd != -1) {
2052 static void tcp_chr_connect(void *opaque)
2054 CharDriverState *chr = opaque;
2055 TCPCharDriver *s = chr->opaque;
2058 qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
2059 tcp_chr_read, NULL, chr);
2060 qemu_chr_generic_open(chr);
2063 #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
2064 static void tcp_chr_telnet_init(int fd)
2067 /* Send the telnet negotion to put telnet in binary, no echo, single char mode */
2068 IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
2069 send(fd, (char *)buf, 3, 0);
2070 IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
2071 send(fd, (char *)buf, 3, 0);
2072 IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
2073 send(fd, (char *)buf, 3, 0);
2074 IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
2075 send(fd, (char *)buf, 3, 0);
2078 static void socket_set_nodelay(int fd)
2081 setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
2084 static void tcp_chr_accept(void *opaque)
2086 CharDriverState *chr = opaque;
2087 TCPCharDriver *s = chr->opaque;
2088 struct sockaddr_in saddr;
2090 struct sockaddr_un uaddr;
2092 struct sockaddr *addr;
2099 len = sizeof(uaddr);
2100 addr = (struct sockaddr *)&uaddr;
2104 len = sizeof(saddr);
2105 addr = (struct sockaddr *)&saddr;
2107 fd = qemu_accept(s->listen_fd, addr, &len);
2108 if (fd < 0 && errno != EINTR) {
2110 } else if (fd >= 0) {
2111 if (s->do_telnetopt)
2112 tcp_chr_telnet_init(fd);
2116 socket_set_nonblock(fd);
2118 socket_set_nodelay(fd);
2120 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
2121 tcp_chr_connect(chr);
2124 static void tcp_chr_close(CharDriverState *chr)
2126 TCPCharDriver *s = chr->opaque;
2128 qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
2131 if (s->listen_fd >= 0) {
2132 qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
2133 closesocket(s->listen_fd);
2136 qemu_chr_event(chr, CHR_EVENT_CLOSED);
2139 static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
2141 CharDriverState *chr = NULL;
2142 TCPCharDriver *s = NULL;
2150 is_listen = qemu_opt_get_bool(opts, "server", 0);
2151 is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
2152 is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
2153 do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
2154 is_unix = qemu_opt_get(opts, "path") != NULL;
2158 chr = qemu_mallocz(sizeof(CharDriverState));
2159 s = qemu_mallocz(sizeof(TCPCharDriver));
2163 fd = unix_listen_opts(opts);
2165 fd = unix_connect_opts(opts);
2169 fd = inet_listen_opts(opts, 0);
2171 fd = inet_connect_opts(opts);
2177 if (!is_waitconnect)
2178 socket_set_nonblock(fd);
2184 s->is_unix = is_unix;
2185 s->do_nodelay = do_nodelay && !is_unix;
2188 chr->chr_write = tcp_chr_write;
2189 chr->chr_close = tcp_chr_close;
2190 chr->get_msgfd = tcp_get_msgfd;
2194 qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
2196 s->do_telnetopt = 1;
2201 socket_set_nodelay(fd);
2202 tcp_chr_connect(chr);
2205 /* for "info chardev" monitor command */
2206 chr->filename = qemu_malloc(256);
2208 snprintf(chr->filename, 256, "unix:%s%s",
2209 qemu_opt_get(opts, "path"),
2210 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2211 } else if (is_telnet) {
2212 snprintf(chr->filename, 256, "telnet:%s:%s%s",
2213 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2214 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2216 snprintf(chr->filename, 256, "tcp:%s:%s%s",
2217 qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
2218 qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
2221 if (is_listen && is_waitconnect) {
2222 printf("QEMU waiting for connection on: %s\n",
2224 tcp_chr_accept(chr);
2225 socket_set_nonblock(s->listen_fd);
2237 QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
2239 char host[65], port[33], width[8], height[8];
2244 opts = qemu_opts_create(&qemu_chardev_opts, label, 1);
2248 if (strstart(filename, "mon:", &p)) {
2250 qemu_opt_set(opts, "mux", "on");
2253 if (strcmp(filename, "null") == 0 ||
2254 strcmp(filename, "pty") == 0 ||
2255 strcmp(filename, "msmouse") == 0 ||
2256 strcmp(filename, "braille") == 0 ||
2257 strcmp(filename, "stdio") == 0) {
2258 qemu_opt_set(opts, "backend", filename);
2261 if (strstart(filename, "vc", &p)) {
2262 qemu_opt_set(opts, "backend", "vc");
2264 if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) {
2266 qemu_opt_set(opts, "width", width);
2267 qemu_opt_set(opts, "height", height);
2268 } else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) {
2270 qemu_opt_set(opts, "cols", width);
2271 qemu_opt_set(opts, "rows", height);
2278 if (strcmp(filename, "con:") == 0) {
2279 qemu_opt_set(opts, "backend", "console");
2282 if (strstart(filename, "COM", NULL)) {
2283 qemu_opt_set(opts, "backend", "serial");
2284 qemu_opt_set(opts, "path", filename);
2287 if (strstart(filename, "file:", &p)) {
2288 qemu_opt_set(opts, "backend", "file");
2289 qemu_opt_set(opts, "path", p);
2292 if (strstart(filename, "pipe:", &p)) {
2293 qemu_opt_set(opts, "backend", "pipe");
2294 qemu_opt_set(opts, "path", p);
2297 if (strstart(filename, "tcp:", &p) ||
2298 strstart(filename, "telnet:", &p)) {
2299 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2301 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
2304 qemu_opt_set(opts, "backend", "socket");
2305 qemu_opt_set(opts, "host", host);
2306 qemu_opt_set(opts, "port", port);
2307 if (p[pos] == ',') {
2308 if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0)
2311 if (strstart(filename, "telnet:", &p))
2312 qemu_opt_set(opts, "telnet", "on");
2315 if (strstart(filename, "udp:", &p)) {
2316 qemu_opt_set(opts, "backend", "udp");
2317 if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) {
2319 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2320 fprintf(stderr, "udp #1\n");
2324 qemu_opt_set(opts, "host", host);
2325 qemu_opt_set(opts, "port", port);
2326 if (p[pos] == '@') {
2328 if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
2330 if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) {
2331 fprintf(stderr, "udp #2\n");
2335 qemu_opt_set(opts, "localaddr", host);
2336 qemu_opt_set(opts, "localport", port);
2340 if (strstart(filename, "unix:", &p)) {
2341 qemu_opt_set(opts, "backend", "socket");
2342 if (qemu_opts_do_parse(opts, p, "path") != 0)
2346 if (strstart(filename, "/dev/parport", NULL) ||
2347 strstart(filename, "/dev/ppi", NULL)) {
2348 qemu_opt_set(opts, "backend", "parport");
2349 qemu_opt_set(opts, "path", filename);
2352 if (strstart(filename, "/dev/", NULL)) {
2353 qemu_opt_set(opts, "backend", "tty");
2354 qemu_opt_set(opts, "path", filename);
2359 fprintf(stderr, "%s: fail on \"%s\"\n", __FUNCTION__, filename);
2360 qemu_opts_del(opts);
2364 static const struct {
2366 CharDriverState *(*open)(QemuOpts *opts);
2367 } backend_table[] = {
2368 { .name = "null", .open = qemu_chr_open_null },
2369 { .name = "socket", .open = qemu_chr_open_socket },
2370 { .name = "udp", .open = qemu_chr_open_udp },
2371 { .name = "msmouse", .open = qemu_chr_open_msmouse },
2372 { .name = "vc", .open = text_console_init },
2374 { .name = "file", .open = qemu_chr_open_win_file_out },
2375 { .name = "pipe", .open = qemu_chr_open_win_pipe },
2376 { .name = "console", .open = qemu_chr_open_win_con },
2377 { .name = "serial", .open = qemu_chr_open_win },
2379 { .name = "file", .open = qemu_chr_open_file_out },
2380 { .name = "pipe", .open = qemu_chr_open_pipe },
2381 { .name = "pty", .open = qemu_chr_open_pty },
2382 { .name = "stdio", .open = qemu_chr_open_stdio },
2384 #ifdef CONFIG_BRLAPI
2385 { .name = "braille", .open = chr_baum_init },
2387 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
2388 || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
2389 || defined(__FreeBSD_kernel__)
2390 { .name = "tty", .open = qemu_chr_open_tty },
2392 #if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
2393 || defined(__FreeBSD_kernel__)
2394 { .name = "parport", .open = qemu_chr_open_pp },
2398 CharDriverState *qemu_chr_open_opts(QemuOpts *opts,
2399 void (*init)(struct CharDriverState *s))
2401 CharDriverState *chr;
2404 if (qemu_opts_id(opts) == NULL) {
2405 fprintf(stderr, "chardev: no id specified\n");
2409 for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
2410 if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
2413 if (i == ARRAY_SIZE(backend_table)) {
2414 fprintf(stderr, "chardev: backend \"%s\" not found\n",
2415 qemu_opt_get(opts, "backend"));
2419 chr = backend_table[i].open(opts);
2421 fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
2422 qemu_opt_get(opts, "backend"));
2427 chr->filename = qemu_strdup(qemu_opt_get(opts, "backend"));
2429 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2431 if (qemu_opt_get_bool(opts, "mux", 0)) {
2432 CharDriverState *base = chr;
2433 int len = strlen(qemu_opts_id(opts)) + 6;
2434 base->label = qemu_malloc(len);
2435 snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
2436 chr = qemu_chr_open_mux(base);
2437 chr->filename = base->filename;
2438 QTAILQ_INSERT_TAIL(&chardevs, chr, next);
2440 chr->label = qemu_strdup(qemu_opts_id(opts));
2444 CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
2447 CharDriverState *chr;
2450 if (strstart(filename, "chardev:", &p)) {
2451 return qemu_chr_find(p);
2454 opts = qemu_chr_parse_compat(label, filename);
2458 chr = qemu_chr_open_opts(opts, init);
2459 if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
2460 monitor_init(chr, MONITOR_USE_READLINE);
2465 void qemu_chr_close(CharDriverState *chr)
2467 QTAILQ_REMOVE(&chardevs, chr, next);
2469 chr->chr_close(chr);
2470 qemu_free(chr->filename);
2471 qemu_free(chr->label);
2475 static void qemu_chr_qlist_iter(QObject *obj, void *opaque)
2478 Monitor *mon = opaque;
2480 chr_dict = qobject_to_qdict(obj);
2481 monitor_printf(mon, "%s: filename=%s\n", qdict_get_str(chr_dict, "label"),
2482 qdict_get_str(chr_dict, "filename"));
2485 void qemu_chr_info_print(Monitor *mon, const QObject *ret_data)
2487 qlist_iter(qobject_to_qlist(ret_data), qemu_chr_qlist_iter, mon);
2491 * qemu_chr_info(): Character devices information
2493 * Each device is represented by a QDict. The returned QObject is a QList
2496 * The QDict contains the following:
2498 * - "label": device's label
2499 * - "filename": device's file
2503 * [ { "label": "monitor", "filename", "stdio" },
2504 * { "label": "serial0", "filename": "vc" } ]
2506 void qemu_chr_info(Monitor *mon, QObject **ret_data)
2509 CharDriverState *chr;
2511 chr_list = qlist_new();
2513 QTAILQ_FOREACH(chr, &chardevs, next) {
2514 QObject *obj = qobject_from_jsonf("{ 'label': %s, 'filename': %s }",
2515 chr->label, chr->filename);
2516 qlist_append_obj(chr_list, obj);
2519 *ret_data = QOBJECT(chr_list);
2522 CharDriverState *qemu_chr_find(const char *name)
2524 CharDriverState *chr;
2526 QTAILQ_FOREACH(chr, &chardevs, next) {
2527 if (strcmp(chr->label, name) != 0)