git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6746 c046a42c-6fe2-441c-8c8c-71466251a162
2222 lines
56 KiB
C
2222 lines
56 KiB
C
/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu-common.h"
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#include "net.h"
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#include "monitor.h"
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#include "console.h"
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#include "sysemu.h"
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#include "qemu-timer.h"
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#include "qemu-char.h"
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#include "block.h"
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#include "hw/usb.h"
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#include "hw/baum.h"
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#include "hw/msmouse.h"
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#include <unistd.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <time.h>
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#include <errno.h>
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#include <sys/time.h>
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#include <zlib.h>
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#ifndef _WIN32
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#include <sys/times.h>
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#include <sys/wait.h>
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#include <termios.h>
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#include <sys/mman.h>
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#include <sys/ioctl.h>
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#include <sys/resource.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <net/if.h>
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#ifdef __NetBSD__
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#include <net/if_tap.h>
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#endif
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#ifdef __linux__
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#include <linux/if_tun.h>
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#endif
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#include <arpa/inet.h>
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#include <dirent.h>
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#include <netdb.h>
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#include <sys/select.h>
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#ifdef _BSD
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#include <sys/stat.h>
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#ifdef __FreeBSD__
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#include <libutil.h>
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#include <dev/ppbus/ppi.h>
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#include <dev/ppbus/ppbconf.h>
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#elif defined(__DragonFly__)
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#include <libutil.h>
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#include <dev/misc/ppi/ppi.h>
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#include <bus/ppbus/ppbconf.h>
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#else
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#include <util.h>
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#endif
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#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
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#include <freebsd/stdlib.h>
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#else
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#ifdef __linux__
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#include <pty.h>
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#include <linux/ppdev.h>
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#include <linux/parport.h>
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#endif
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#ifdef __sun__
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#include <sys/stat.h>
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#include <sys/ethernet.h>
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#include <sys/sockio.h>
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#include <netinet/arp.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip_icmp.h> // must come after ip.h
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#include <netinet/udp.h>
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#include <netinet/tcp.h>
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#include <net/if.h>
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#include <syslog.h>
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#include <stropts.h>
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#endif
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#endif
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#endif
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#include "qemu_socket.h"
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/***********************************************************/
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/* character device */
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static TAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
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TAILQ_HEAD_INITIALIZER(chardevs);
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static int initial_reset_issued;
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static void qemu_chr_event(CharDriverState *s, int event)
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{
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if (!s->chr_event)
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return;
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s->chr_event(s->handler_opaque, event);
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}
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static void qemu_chr_reset_bh(void *opaque)
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{
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CharDriverState *s = opaque;
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qemu_chr_event(s, CHR_EVENT_RESET);
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qemu_bh_delete(s->bh);
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s->bh = NULL;
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}
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void qemu_chr_reset(CharDriverState *s)
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{
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if (s->bh == NULL && initial_reset_issued) {
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s->bh = qemu_bh_new(qemu_chr_reset_bh, s);
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qemu_bh_schedule(s->bh);
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}
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}
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void qemu_chr_initial_reset(void)
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{
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CharDriverState *chr;
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initial_reset_issued = 1;
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TAILQ_FOREACH(chr, &chardevs, next) {
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qemu_chr_reset(chr);
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}
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}
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int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
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{
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return s->chr_write(s, buf, len);
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}
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int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg)
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{
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if (!s->chr_ioctl)
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return -ENOTSUP;
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return s->chr_ioctl(s, cmd, arg);
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}
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int qemu_chr_can_read(CharDriverState *s)
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{
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if (!s->chr_can_read)
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return 0;
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return s->chr_can_read(s->handler_opaque);
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}
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void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len)
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{
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s->chr_read(s->handler_opaque, buf, len);
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}
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void qemu_chr_accept_input(CharDriverState *s)
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{
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if (s->chr_accept_input)
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s->chr_accept_input(s);
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}
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void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
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{
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char buf[4096];
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buf, sizeof(buf), fmt, ap);
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qemu_chr_write(s, (uint8_t *)buf, strlen(buf));
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va_end(ap);
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}
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void qemu_chr_send_event(CharDriverState *s, int event)
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{
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if (s->chr_send_event)
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s->chr_send_event(s, event);
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}
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void qemu_chr_add_handlers(CharDriverState *s,
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IOCanRWHandler *fd_can_read,
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IOReadHandler *fd_read,
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IOEventHandler *fd_event,
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void *opaque)
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{
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s->chr_can_read = fd_can_read;
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s->chr_read = fd_read;
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s->chr_event = fd_event;
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s->handler_opaque = opaque;
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if (s->chr_update_read_handler)
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s->chr_update_read_handler(s);
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}
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static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
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{
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return len;
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}
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static CharDriverState *qemu_chr_open_null(void)
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{
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CharDriverState *chr;
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chr = qemu_mallocz(sizeof(CharDriverState));
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chr->chr_write = null_chr_write;
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return chr;
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}
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/* MUX driver for serial I/O splitting */
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static int term_timestamps;
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static int64_t term_timestamps_start;
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#define MAX_MUX 4
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#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
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#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
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typedef struct {
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IOCanRWHandler *chr_can_read[MAX_MUX];
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IOReadHandler *chr_read[MAX_MUX];
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IOEventHandler *chr_event[MAX_MUX];
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void *ext_opaque[MAX_MUX];
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CharDriverState *drv;
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int mux_cnt;
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int term_got_escape;
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int max_size;
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/* Intermediate input buffer allows to catch escape sequences even if the
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currently active device is not accepting any input - but only until it
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is full as well. */
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unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE];
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int prod[MAX_MUX];
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int cons[MAX_MUX];
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} MuxDriver;
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static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
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{
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MuxDriver *d = chr->opaque;
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int ret;
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if (!term_timestamps) {
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ret = d->drv->chr_write(d->drv, buf, len);
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} else {
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int i;
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ret = 0;
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for(i = 0; i < len; i++) {
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ret += d->drv->chr_write(d->drv, buf+i, 1);
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if (buf[i] == '\n') {
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char buf1[64];
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int64_t ti;
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int secs;
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ti = qemu_get_clock(rt_clock);
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if (term_timestamps_start == -1)
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term_timestamps_start = ti;
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ti -= term_timestamps_start;
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secs = ti / 1000;
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snprintf(buf1, sizeof(buf1),
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"[%02d:%02d:%02d.%03d] ",
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secs / 3600,
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(secs / 60) % 60,
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secs % 60,
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(int)(ti % 1000));
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d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1));
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}
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}
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}
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return ret;
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}
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static const char * const mux_help[] = {
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"% h print this help\n\r",
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"% x exit emulator\n\r",
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"% s save disk data back to file (if -snapshot)\n\r",
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"% t toggle console timestamps\n\r"
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"% b send break (magic sysrq)\n\r",
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"% c switch between console and monitor\n\r",
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"% % sends %\n\r",
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NULL
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};
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int term_escape_char = 0x01; /* ctrl-a is used for escape */
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static void mux_print_help(CharDriverState *chr)
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{
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int i, j;
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char ebuf[15] = "Escape-Char";
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char cbuf[50] = "\n\r";
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if (term_escape_char > 0 && term_escape_char < 26) {
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snprintf(cbuf, sizeof(cbuf), "\n\r");
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snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a');
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} else {
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snprintf(cbuf, sizeof(cbuf),
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"\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
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term_escape_char);
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}
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chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf));
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for (i = 0; mux_help[i] != NULL; i++) {
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for (j=0; mux_help[i][j] != '\0'; j++) {
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if (mux_help[i][j] == '%')
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chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf));
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else
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chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
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}
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}
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}
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static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event)
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{
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if (d->chr_event[mux_nr])
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d->chr_event[mux_nr](d->ext_opaque[mux_nr], event);
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}
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static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
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{
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if (d->term_got_escape) {
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d->term_got_escape = 0;
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if (ch == term_escape_char)
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goto send_char;
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switch(ch) {
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case '?':
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case 'h':
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mux_print_help(chr);
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break;
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case 'x':
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{
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const char *term = "QEMU: Terminated\n\r";
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chr->chr_write(chr,(uint8_t *)term,strlen(term));
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exit(0);
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break;
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}
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case 's':
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{
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int i;
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for (i = 0; i < nb_drives; i++) {
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bdrv_commit(drives_table[i].bdrv);
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}
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}
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break;
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case 'b':
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qemu_chr_event(chr, CHR_EVENT_BREAK);
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break;
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case 'c':
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/* Switch to the next registered device */
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mux_chr_send_event(d, chr->focus, CHR_EVENT_MUX_OUT);
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chr->focus++;
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if (chr->focus >= d->mux_cnt)
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chr->focus = 0;
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mux_chr_send_event(d, chr->focus, CHR_EVENT_MUX_IN);
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break;
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case 't':
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term_timestamps = !term_timestamps;
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term_timestamps_start = -1;
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break;
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}
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} else if (ch == term_escape_char) {
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d->term_got_escape = 1;
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} else {
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send_char:
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return 1;
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}
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return 0;
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}
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static void mux_chr_accept_input(CharDriverState *chr)
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{
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int m = chr->focus;
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MuxDriver *d = chr->opaque;
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while (d->prod[m] != d->cons[m] &&
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d->chr_can_read[m] &&
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d->chr_can_read[m](d->ext_opaque[m])) {
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d->chr_read[m](d->ext_opaque[m],
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&d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
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}
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}
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static int mux_chr_can_read(void *opaque)
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{
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CharDriverState *chr = opaque;
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MuxDriver *d = chr->opaque;
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int m = chr->focus;
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if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
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return 1;
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if (d->chr_can_read[m])
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return d->chr_can_read[m](d->ext_opaque[m]);
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return 0;
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}
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static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
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{
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CharDriverState *chr = opaque;
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MuxDriver *d = chr->opaque;
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int m = chr->focus;
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int i;
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mux_chr_accept_input (opaque);
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for(i = 0; i < size; i++)
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if (mux_proc_byte(chr, d, buf[i])) {
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if (d->prod[m] == d->cons[m] &&
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d->chr_can_read[m] &&
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d->chr_can_read[m](d->ext_opaque[m]))
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d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
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else
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d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i];
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}
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}
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static void mux_chr_event(void *opaque, int event)
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{
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CharDriverState *chr = opaque;
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MuxDriver *d = chr->opaque;
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int i;
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/* Send the event to all registered listeners */
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for (i = 0; i < d->mux_cnt; i++)
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mux_chr_send_event(d, i, event);
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}
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static void mux_chr_update_read_handler(CharDriverState *chr)
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{
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MuxDriver *d = chr->opaque;
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if (d->mux_cnt >= MAX_MUX) {
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fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
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return;
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}
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d->ext_opaque[d->mux_cnt] = chr->handler_opaque;
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d->chr_can_read[d->mux_cnt] = chr->chr_can_read;
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d->chr_read[d->mux_cnt] = chr->chr_read;
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d->chr_event[d->mux_cnt] = chr->chr_event;
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/* Fix up the real driver with mux routines */
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if (d->mux_cnt == 0) {
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qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read,
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mux_chr_event, chr);
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}
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chr->focus = d->mux_cnt;
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d->mux_cnt++;
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}
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static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
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{
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CharDriverState *chr;
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MuxDriver *d;
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chr = qemu_mallocz(sizeof(CharDriverState));
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d = qemu_mallocz(sizeof(MuxDriver));
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chr->opaque = d;
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d->drv = drv;
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chr->focus = -1;
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chr->chr_write = mux_chr_write;
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chr->chr_update_read_handler = mux_chr_update_read_handler;
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chr->chr_accept_input = mux_chr_accept_input;
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return chr;
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}
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#ifdef _WIN32
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int send_all(int fd, const void *buf, int len1)
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{
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int ret, len;
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len = len1;
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while (len > 0) {
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ret = send(fd, buf, len, 0);
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if (ret < 0) {
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errno = WSAGetLastError();
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if (errno != WSAEWOULDBLOCK) {
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return -1;
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}
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} else if (ret == 0) {
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break;
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} else {
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buf += ret;
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len -= ret;
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}
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}
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return len1 - len;
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}
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#else
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static int unix_write(int fd, const uint8_t *buf, int len1)
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{
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int ret, len;
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len = len1;
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while (len > 0) {
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ret = write(fd, buf, len);
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if (ret < 0) {
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if (errno != EINTR && errno != EAGAIN)
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return -1;
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} else if (ret == 0) {
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break;
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} else {
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buf += ret;
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len -= ret;
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}
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}
|
|
return len1 - len;
|
|
}
|
|
|
|
int send_all(int fd, const void *buf, int len1)
|
|
{
|
|
return unix_write(fd, buf, len1);
|
|
}
|
|
#endif /* !_WIN32 */
|
|
|
|
#ifndef _WIN32
|
|
|
|
typedef struct {
|
|
int fd_in, fd_out;
|
|
int max_size;
|
|
} FDCharDriver;
|
|
|
|
#define STDIO_MAX_CLIENTS 1
|
|
static int stdio_nb_clients = 0;
|
|
|
|
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
|
|
{
|
|
FDCharDriver *s = chr->opaque;
|
|
return send_all(s->fd_out, buf, len);
|
|
}
|
|
|
|
static int fd_chr_read_poll(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
FDCharDriver *s = chr->opaque;
|
|
|
|
s->max_size = qemu_chr_can_read(chr);
|
|
return s->max_size;
|
|
}
|
|
|
|
static void fd_chr_read(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
FDCharDriver *s = chr->opaque;
|
|
int size, len;
|
|
uint8_t buf[1024];
|
|
|
|
len = sizeof(buf);
|
|
if (len > s->max_size)
|
|
len = s->max_size;
|
|
if (len == 0)
|
|
return;
|
|
size = read(s->fd_in, buf, len);
|
|
if (size == 0) {
|
|
/* FD has been closed. Remove it from the active list. */
|
|
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
|
|
return;
|
|
}
|
|
if (size > 0) {
|
|
qemu_chr_read(chr, buf, size);
|
|
}
|
|
}
|
|
|
|
static void fd_chr_update_read_handler(CharDriverState *chr)
|
|
{
|
|
FDCharDriver *s = chr->opaque;
|
|
|
|
if (s->fd_in >= 0) {
|
|
if (nographic && s->fd_in == 0) {
|
|
} else {
|
|
qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll,
|
|
fd_chr_read, NULL, chr);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void fd_chr_close(struct CharDriverState *chr)
|
|
{
|
|
FDCharDriver *s = chr->opaque;
|
|
|
|
if (s->fd_in >= 0) {
|
|
if (nographic && s->fd_in == 0) {
|
|
} else {
|
|
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL);
|
|
}
|
|
}
|
|
|
|
qemu_free(s);
|
|
}
|
|
|
|
/* open a character device to a unix fd */
|
|
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
|
|
{
|
|
CharDriverState *chr;
|
|
FDCharDriver *s;
|
|
|
|
chr = qemu_mallocz(sizeof(CharDriverState));
|
|
s = qemu_mallocz(sizeof(FDCharDriver));
|
|
s->fd_in = fd_in;
|
|
s->fd_out = fd_out;
|
|
chr->opaque = s;
|
|
chr->chr_write = fd_chr_write;
|
|
chr->chr_update_read_handler = fd_chr_update_read_handler;
|
|
chr->chr_close = fd_chr_close;
|
|
|
|
qemu_chr_reset(chr);
|
|
|
|
return chr;
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_file_out(const char *file_out)
|
|
{
|
|
int fd_out;
|
|
|
|
TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
|
if (fd_out < 0)
|
|
return NULL;
|
|
return qemu_chr_open_fd(-1, fd_out);
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_pipe(const char *filename)
|
|
{
|
|
int fd_in, fd_out;
|
|
char filename_in[256], filename_out[256];
|
|
|
|
snprintf(filename_in, 256, "%s.in", filename);
|
|
snprintf(filename_out, 256, "%s.out", filename);
|
|
TFR(fd_in = open(filename_in, O_RDWR | O_BINARY));
|
|
TFR(fd_out = open(filename_out, O_RDWR | O_BINARY));
|
|
if (fd_in < 0 || fd_out < 0) {
|
|
if (fd_in >= 0)
|
|
close(fd_in);
|
|
if (fd_out >= 0)
|
|
close(fd_out);
|
|
TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY));
|
|
if (fd_in < 0)
|
|
return NULL;
|
|
}
|
|
return qemu_chr_open_fd(fd_in, fd_out);
|
|
}
|
|
|
|
|
|
/* for STDIO, we handle the case where several clients use it
|
|
(nographic mode) */
|
|
|
|
#define TERM_FIFO_MAX_SIZE 1
|
|
|
|
static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
|
|
static int term_fifo_size;
|
|
|
|
static int stdio_read_poll(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
|
|
/* try to flush the queue if needed */
|
|
if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) {
|
|
qemu_chr_read(chr, term_fifo, 1);
|
|
term_fifo_size = 0;
|
|
}
|
|
/* see if we can absorb more chars */
|
|
if (term_fifo_size == 0)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static void stdio_read(void *opaque)
|
|
{
|
|
int size;
|
|
uint8_t buf[1];
|
|
CharDriverState *chr = opaque;
|
|
|
|
size = read(0, buf, 1);
|
|
if (size == 0) {
|
|
/* stdin has been closed. Remove it from the active list. */
|
|
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
|
|
return;
|
|
}
|
|
if (size > 0) {
|
|
if (qemu_chr_can_read(chr) > 0) {
|
|
qemu_chr_read(chr, buf, 1);
|
|
} else if (term_fifo_size == 0) {
|
|
term_fifo[term_fifo_size++] = buf[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
/* init terminal so that we can grab keys */
|
|
static struct termios oldtty;
|
|
static int old_fd0_flags;
|
|
static int term_atexit_done;
|
|
|
|
static void term_exit(void)
|
|
{
|
|
tcsetattr (0, TCSANOW, &oldtty);
|
|
fcntl(0, F_SETFL, old_fd0_flags);
|
|
}
|
|
|
|
static void term_init(void)
|
|
{
|
|
struct termios tty;
|
|
|
|
tcgetattr (0, &tty);
|
|
oldtty = tty;
|
|
old_fd0_flags = fcntl(0, F_GETFL);
|
|
|
|
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
|
|
|INLCR|IGNCR|ICRNL|IXON);
|
|
tty.c_oflag |= OPOST;
|
|
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
|
|
/* if graphical mode, we allow Ctrl-C handling */
|
|
if (nographic)
|
|
tty.c_lflag &= ~ISIG;
|
|
tty.c_cflag &= ~(CSIZE|PARENB);
|
|
tty.c_cflag |= CS8;
|
|
tty.c_cc[VMIN] = 1;
|
|
tty.c_cc[VTIME] = 0;
|
|
|
|
tcsetattr (0, TCSANOW, &tty);
|
|
|
|
if (!term_atexit_done++)
|
|
atexit(term_exit);
|
|
|
|
fcntl(0, F_SETFL, O_NONBLOCK);
|
|
}
|
|
|
|
static void qemu_chr_close_stdio(struct CharDriverState *chr)
|
|
{
|
|
term_exit();
|
|
stdio_nb_clients--;
|
|
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL);
|
|
fd_chr_close(chr);
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_stdio(void)
|
|
{
|
|
CharDriverState *chr;
|
|
|
|
if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
|
|
return NULL;
|
|
chr = qemu_chr_open_fd(0, 1);
|
|
chr->chr_close = qemu_chr_close_stdio;
|
|
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr);
|
|
stdio_nb_clients++;
|
|
term_init();
|
|
|
|
return chr;
|
|
}
|
|
|
|
#ifdef __sun__
|
|
/* Once Solaris has openpty(), this is going to be removed. */
|
|
int openpty(int *amaster, int *aslave, char *name,
|
|
struct termios *termp, struct winsize *winp)
|
|
{
|
|
const char *slave;
|
|
int mfd = -1, sfd = -1;
|
|
|
|
*amaster = *aslave = -1;
|
|
|
|
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
|
if (mfd < 0)
|
|
goto err;
|
|
|
|
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
|
|
goto err;
|
|
|
|
if ((slave = ptsname(mfd)) == NULL)
|
|
goto err;
|
|
|
|
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
|
|
goto err;
|
|
|
|
if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
|
|
(termp != NULL && tcgetattr(sfd, termp) < 0))
|
|
goto err;
|
|
|
|
if (amaster)
|
|
*amaster = mfd;
|
|
if (aslave)
|
|
*aslave = sfd;
|
|
if (winp)
|
|
ioctl(sfd, TIOCSWINSZ, winp);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
if (sfd != -1)
|
|
close(sfd);
|
|
close(mfd);
|
|
return -1;
|
|
}
|
|
|
|
void cfmakeraw (struct termios *termios_p)
|
|
{
|
|
termios_p->c_iflag &=
|
|
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
|
|
termios_p->c_oflag &= ~OPOST;
|
|
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
|
|
termios_p->c_cflag &= ~(CSIZE|PARENB);
|
|
termios_p->c_cflag |= CS8;
|
|
|
|
termios_p->c_cc[VMIN] = 0;
|
|
termios_p->c_cc[VTIME] = 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
|
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
|
|
|
|
typedef struct {
|
|
int fd;
|
|
int connected;
|
|
int polling;
|
|
int read_bytes;
|
|
QEMUTimer *timer;
|
|
} PtyCharDriver;
|
|
|
|
static void pty_chr_update_read_handler(CharDriverState *chr);
|
|
static void pty_chr_state(CharDriverState *chr, int connected);
|
|
|
|
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
|
|
{
|
|
PtyCharDriver *s = chr->opaque;
|
|
|
|
if (!s->connected) {
|
|
/* guest sends data, check for (re-)connect */
|
|
pty_chr_update_read_handler(chr);
|
|
return 0;
|
|
}
|
|
return send_all(s->fd, buf, len);
|
|
}
|
|
|
|
static int pty_chr_read_poll(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
PtyCharDriver *s = chr->opaque;
|
|
|
|
s->read_bytes = qemu_chr_can_read(chr);
|
|
return s->read_bytes;
|
|
}
|
|
|
|
static void pty_chr_read(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
PtyCharDriver *s = chr->opaque;
|
|
int size, len;
|
|
uint8_t buf[1024];
|
|
|
|
len = sizeof(buf);
|
|
if (len > s->read_bytes)
|
|
len = s->read_bytes;
|
|
if (len == 0)
|
|
return;
|
|
size = read(s->fd, buf, len);
|
|
if ((size == -1 && errno == EIO) ||
|
|
(size == 0)) {
|
|
pty_chr_state(chr, 0);
|
|
return;
|
|
}
|
|
if (size > 0) {
|
|
pty_chr_state(chr, 1);
|
|
qemu_chr_read(chr, buf, size);
|
|
}
|
|
}
|
|
|
|
static void pty_chr_update_read_handler(CharDriverState *chr)
|
|
{
|
|
PtyCharDriver *s = chr->opaque;
|
|
|
|
qemu_set_fd_handler2(s->fd, pty_chr_read_poll,
|
|
pty_chr_read, NULL, chr);
|
|
s->polling = 1;
|
|
/*
|
|
* Short timeout here: just need wait long enougth that qemu makes
|
|
* it through the poll loop once. When reconnected we want a
|
|
* short timeout so we notice it almost instantly. Otherwise
|
|
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
|
* timeout to the normal (much longer) poll interval before the
|
|
* timer triggers.
|
|
*/
|
|
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
|
|
}
|
|
|
|
static void pty_chr_state(CharDriverState *chr, int connected)
|
|
{
|
|
PtyCharDriver *s = chr->opaque;
|
|
|
|
if (!connected) {
|
|
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
|
|
s->connected = 0;
|
|
s->polling = 0;
|
|
/* (re-)connect poll interval for idle guests: once per second.
|
|
* We check more frequently in case the guests sends data to
|
|
* the virtual device linked to our pty. */
|
|
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
|
|
} else {
|
|
if (!s->connected)
|
|
qemu_chr_reset(chr);
|
|
s->connected = 1;
|
|
}
|
|
}
|
|
|
|
static void pty_chr_timer(void *opaque)
|
|
{
|
|
struct CharDriverState *chr = opaque;
|
|
PtyCharDriver *s = chr->opaque;
|
|
|
|
if (s->connected)
|
|
return;
|
|
if (s->polling) {
|
|
/* If we arrive here without polling being cleared due
|
|
* read returning -EIO, then we are (re-)connected */
|
|
pty_chr_state(chr, 1);
|
|
return;
|
|
}
|
|
|
|
/* Next poll ... */
|
|
pty_chr_update_read_handler(chr);
|
|
}
|
|
|
|
static void pty_chr_close(struct CharDriverState *chr)
|
|
{
|
|
PtyCharDriver *s = chr->opaque;
|
|
|
|
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
|
|
close(s->fd);
|
|
qemu_free(s);
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_pty(void)
|
|
{
|
|
CharDriverState *chr;
|
|
PtyCharDriver *s;
|
|
struct termios tty;
|
|
int slave_fd, len;
|
|
#if defined(__OpenBSD__) || defined(__DragonFly__)
|
|
char pty_name[PATH_MAX];
|
|
#define q_ptsname(x) pty_name
|
|
#else
|
|
char *pty_name = NULL;
|
|
#define q_ptsname(x) ptsname(x)
|
|
#endif
|
|
|
|
chr = qemu_mallocz(sizeof(CharDriverState));
|
|
s = qemu_mallocz(sizeof(PtyCharDriver));
|
|
|
|
if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) {
|
|
return NULL;
|
|
}
|
|
|
|
/* Set raw attributes on the pty. */
|
|
tcgetattr(slave_fd, &tty);
|
|
cfmakeraw(&tty);
|
|
tcsetattr(slave_fd, TCSAFLUSH, &tty);
|
|
close(slave_fd);
|
|
|
|
len = strlen(q_ptsname(s->fd)) + 5;
|
|
chr->filename = qemu_malloc(len);
|
|
snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
|
|
fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
|
|
|
|
chr->opaque = s;
|
|
chr->chr_write = pty_chr_write;
|
|
chr->chr_update_read_handler = pty_chr_update_read_handler;
|
|
chr->chr_close = pty_chr_close;
|
|
|
|
s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr);
|
|
|
|
return chr;
|
|
}
|
|
|
|
static void tty_serial_init(int fd, int speed,
|
|
int parity, int data_bits, int stop_bits)
|
|
{
|
|
struct termios tty;
|
|
speed_t spd;
|
|
|
|
#if 0
|
|
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
|
speed, parity, data_bits, stop_bits);
|
|
#endif
|
|
tcgetattr (fd, &tty);
|
|
|
|
#define MARGIN 1.1
|
|
if (speed <= 50 * MARGIN)
|
|
spd = B50;
|
|
else if (speed <= 75 * MARGIN)
|
|
spd = B75;
|
|
else if (speed <= 300 * MARGIN)
|
|
spd = B300;
|
|
else if (speed <= 600 * MARGIN)
|
|
spd = B600;
|
|
else if (speed <= 1200 * MARGIN)
|
|
spd = B1200;
|
|
else if (speed <= 2400 * MARGIN)
|
|
spd = B2400;
|
|
else if (speed <= 4800 * MARGIN)
|
|
spd = B4800;
|
|
else if (speed <= 9600 * MARGIN)
|
|
spd = B9600;
|
|
else if (speed <= 19200 * MARGIN)
|
|
spd = B19200;
|
|
else if (speed <= 38400 * MARGIN)
|
|
spd = B38400;
|
|
else if (speed <= 57600 * MARGIN)
|
|
spd = B57600;
|
|
else if (speed <= 115200 * MARGIN)
|
|
spd = B115200;
|
|
else
|
|
spd = B115200;
|
|
|
|
cfsetispeed(&tty, spd);
|
|
cfsetospeed(&tty, spd);
|
|
|
|
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
|
|
|INLCR|IGNCR|ICRNL|IXON);
|
|
tty.c_oflag |= OPOST;
|
|
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
|
|
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
|
|
switch(data_bits) {
|
|
default:
|
|
case 8:
|
|
tty.c_cflag |= CS8;
|
|
break;
|
|
case 7:
|
|
tty.c_cflag |= CS7;
|
|
break;
|
|
case 6:
|
|
tty.c_cflag |= CS6;
|
|
break;
|
|
case 5:
|
|
tty.c_cflag |= CS5;
|
|
break;
|
|
}
|
|
switch(parity) {
|
|
default:
|
|
case 'N':
|
|
break;
|
|
case 'E':
|
|
tty.c_cflag |= PARENB;
|
|
break;
|
|
case 'O':
|
|
tty.c_cflag |= PARENB | PARODD;
|
|
break;
|
|
}
|
|
if (stop_bits == 2)
|
|
tty.c_cflag |= CSTOPB;
|
|
|
|
tcsetattr (fd, TCSANOW, &tty);
|
|
}
|
|
|
|
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
|
|
{
|
|
FDCharDriver *s = chr->opaque;
|
|
|
|
switch(cmd) {
|
|
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
|
{
|
|
QEMUSerialSetParams *ssp = arg;
|
|
tty_serial_init(s->fd_in, ssp->speed, ssp->parity,
|
|
ssp->data_bits, ssp->stop_bits);
|
|
}
|
|
break;
|
|
case CHR_IOCTL_SERIAL_SET_BREAK:
|
|
{
|
|
int enable = *(int *)arg;
|
|
if (enable)
|
|
tcsendbreak(s->fd_in, 1);
|
|
}
|
|
break;
|
|
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
|
{
|
|
int sarg = 0;
|
|
int *targ = (int *)arg;
|
|
ioctl(s->fd_in, TIOCMGET, &sarg);
|
|
*targ = 0;
|
|
if (sarg & TIOCM_CTS)
|
|
*targ |= CHR_TIOCM_CTS;
|
|
if (sarg & TIOCM_CAR)
|
|
*targ |= CHR_TIOCM_CAR;
|
|
if (sarg & TIOCM_DSR)
|
|
*targ |= CHR_TIOCM_DSR;
|
|
if (sarg & TIOCM_RI)
|
|
*targ |= CHR_TIOCM_RI;
|
|
if (sarg & TIOCM_DTR)
|
|
*targ |= CHR_TIOCM_DTR;
|
|
if (sarg & TIOCM_RTS)
|
|
*targ |= CHR_TIOCM_RTS;
|
|
}
|
|
break;
|
|
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
|
{
|
|
int sarg = *(int *)arg;
|
|
int targ = 0;
|
|
ioctl(s->fd_in, TIOCMGET, &targ);
|
|
targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
|
|
| CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
|
|
if (sarg & CHR_TIOCM_CTS)
|
|
targ |= TIOCM_CTS;
|
|
if (sarg & CHR_TIOCM_CAR)
|
|
targ |= TIOCM_CAR;
|
|
if (sarg & CHR_TIOCM_DSR)
|
|
targ |= TIOCM_DSR;
|
|
if (sarg & CHR_TIOCM_RI)
|
|
targ |= TIOCM_RI;
|
|
if (sarg & CHR_TIOCM_DTR)
|
|
targ |= TIOCM_DTR;
|
|
if (sarg & CHR_TIOCM_RTS)
|
|
targ |= TIOCM_RTS;
|
|
ioctl(s->fd_in, TIOCMSET, &targ);
|
|
}
|
|
break;
|
|
default:
|
|
return -ENOTSUP;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_tty(const char *filename)
|
|
{
|
|
CharDriverState *chr;
|
|
int fd;
|
|
|
|
TFR(fd = open(filename, O_RDWR | O_NONBLOCK));
|
|
tty_serial_init(fd, 115200, 'N', 8, 1);
|
|
chr = qemu_chr_open_fd(fd, fd);
|
|
if (!chr) {
|
|
close(fd);
|
|
return NULL;
|
|
}
|
|
chr->chr_ioctl = tty_serial_ioctl;
|
|
qemu_chr_reset(chr);
|
|
return chr;
|
|
}
|
|
#else /* ! __linux__ && ! __sun__ */
|
|
static CharDriverState *qemu_chr_open_pty(void)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif /* __linux__ || __sun__ */
|
|
|
|
#if defined(__linux__)
|
|
typedef struct {
|
|
int fd;
|
|
int mode;
|
|
} ParallelCharDriver;
|
|
|
|
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode)
|
|
{
|
|
if (s->mode != mode) {
|
|
int m = mode;
|
|
if (ioctl(s->fd, PPSETMODE, &m) < 0)
|
|
return 0;
|
|
s->mode = mode;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
|
|
{
|
|
ParallelCharDriver *drv = chr->opaque;
|
|
int fd = drv->fd;
|
|
uint8_t b;
|
|
|
|
switch(cmd) {
|
|
case CHR_IOCTL_PP_READ_DATA:
|
|
if (ioctl(fd, PPRDATA, &b) < 0)
|
|
return -ENOTSUP;
|
|
*(uint8_t *)arg = b;
|
|
break;
|
|
case CHR_IOCTL_PP_WRITE_DATA:
|
|
b = *(uint8_t *)arg;
|
|
if (ioctl(fd, PPWDATA, &b) < 0)
|
|
return -ENOTSUP;
|
|
break;
|
|
case CHR_IOCTL_PP_READ_CONTROL:
|
|
if (ioctl(fd, PPRCONTROL, &b) < 0)
|
|
return -ENOTSUP;
|
|
/* Linux gives only the lowest bits, and no way to know data
|
|
direction! For better compatibility set the fixed upper
|
|
bits. */
|
|
*(uint8_t *)arg = b | 0xc0;
|
|
break;
|
|
case CHR_IOCTL_PP_WRITE_CONTROL:
|
|
b = *(uint8_t *)arg;
|
|
if (ioctl(fd, PPWCONTROL, &b) < 0)
|
|
return -ENOTSUP;
|
|
break;
|
|
case CHR_IOCTL_PP_READ_STATUS:
|
|
if (ioctl(fd, PPRSTATUS, &b) < 0)
|
|
return -ENOTSUP;
|
|
*(uint8_t *)arg = b;
|
|
break;
|
|
case CHR_IOCTL_PP_DATA_DIR:
|
|
if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
|
|
return -ENOTSUP;
|
|
break;
|
|
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
|
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
|
struct ParallelIOArg *parg = arg;
|
|
int n = read(fd, parg->buffer, parg->count);
|
|
if (n != parg->count) {
|
|
return -EIO;
|
|
}
|
|
}
|
|
break;
|
|
case CHR_IOCTL_PP_EPP_READ:
|
|
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
|
struct ParallelIOArg *parg = arg;
|
|
int n = read(fd, parg->buffer, parg->count);
|
|
if (n != parg->count) {
|
|
return -EIO;
|
|
}
|
|
}
|
|
break;
|
|
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
|
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
|
struct ParallelIOArg *parg = arg;
|
|
int n = write(fd, parg->buffer, parg->count);
|
|
if (n != parg->count) {
|
|
return -EIO;
|
|
}
|
|
}
|
|
break;
|
|
case CHR_IOCTL_PP_EPP_WRITE:
|
|
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
|
struct ParallelIOArg *parg = arg;
|
|
int n = write(fd, parg->buffer, parg->count);
|
|
if (n != parg->count) {
|
|
return -EIO;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
return -ENOTSUP;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void pp_close(CharDriverState *chr)
|
|
{
|
|
ParallelCharDriver *drv = chr->opaque;
|
|
int fd = drv->fd;
|
|
|
|
pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
|
|
ioctl(fd, PPRELEASE);
|
|
close(fd);
|
|
qemu_free(drv);
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_pp(const char *filename)
|
|
{
|
|
CharDriverState *chr;
|
|
ParallelCharDriver *drv;
|
|
int fd;
|
|
|
|
TFR(fd = open(filename, O_RDWR));
|
|
if (fd < 0)
|
|
return NULL;
|
|
|
|
if (ioctl(fd, PPCLAIM) < 0) {
|
|
close(fd);
|
|
return NULL;
|
|
}
|
|
|
|
drv = qemu_mallocz(sizeof(ParallelCharDriver));
|
|
drv->fd = fd;
|
|
drv->mode = IEEE1284_MODE_COMPAT;
|
|
|
|
chr = qemu_mallocz(sizeof(CharDriverState));
|
|
chr->chr_write = null_chr_write;
|
|
chr->chr_ioctl = pp_ioctl;
|
|
chr->chr_close = pp_close;
|
|
chr->opaque = drv;
|
|
|
|
qemu_chr_reset(chr);
|
|
|
|
return chr;
|
|
}
|
|
#endif /* __linux__ */
|
|
|
|
#if defined(__FreeBSD__) || defined(__DragonFly__)
|
|
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
|
|
{
|
|
int fd = (int)chr->opaque;
|
|
uint8_t b;
|
|
|
|
switch(cmd) {
|
|
case CHR_IOCTL_PP_READ_DATA:
|
|
if (ioctl(fd, PPIGDATA, &b) < 0)
|
|
return -ENOTSUP;
|
|
*(uint8_t *)arg = b;
|
|
break;
|
|
case CHR_IOCTL_PP_WRITE_DATA:
|
|
b = *(uint8_t *)arg;
|
|
if (ioctl(fd, PPISDATA, &b) < 0)
|
|
return -ENOTSUP;
|
|
break;
|
|
case CHR_IOCTL_PP_READ_CONTROL:
|
|
if (ioctl(fd, PPIGCTRL, &b) < 0)
|
|
return -ENOTSUP;
|
|
*(uint8_t *)arg = b;
|
|
break;
|
|
case CHR_IOCTL_PP_WRITE_CONTROL:
|
|
b = *(uint8_t *)arg;
|
|
if (ioctl(fd, PPISCTRL, &b) < 0)
|
|
return -ENOTSUP;
|
|
break;
|
|
case CHR_IOCTL_PP_READ_STATUS:
|
|
if (ioctl(fd, PPIGSTATUS, &b) < 0)
|
|
return -ENOTSUP;
|
|
*(uint8_t *)arg = b;
|
|
break;
|
|
default:
|
|
return -ENOTSUP;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_pp(const char *filename)
|
|
{
|
|
CharDriverState *chr;
|
|
int fd;
|
|
|
|
fd = open(filename, O_RDWR);
|
|
if (fd < 0)
|
|
return NULL;
|
|
|
|
chr = qemu_mallocz(sizeof(CharDriverState));
|
|
chr->opaque = (void *)fd;
|
|
chr->chr_write = null_chr_write;
|
|
chr->chr_ioctl = pp_ioctl;
|
|
return chr;
|
|
}
|
|
#endif
|
|
|
|
#else /* _WIN32 */
|
|
|
|
typedef struct {
|
|
int max_size;
|
|
HANDLE hcom, hrecv, hsend;
|
|
OVERLAPPED orecv, osend;
|
|
BOOL fpipe;
|
|
DWORD len;
|
|
} WinCharState;
|
|
|
|
#define NSENDBUF 2048
|
|
#define NRECVBUF 2048
|
|
#define MAXCONNECT 1
|
|
#define NTIMEOUT 5000
|
|
|
|
static int win_chr_poll(void *opaque);
|
|
static int win_chr_pipe_poll(void *opaque);
|
|
|
|
static void win_chr_close(CharDriverState *chr)
|
|
{
|
|
WinCharState *s = chr->opaque;
|
|
|
|
if (s->hsend) {
|
|
CloseHandle(s->hsend);
|
|
s->hsend = NULL;
|
|
}
|
|
if (s->hrecv) {
|
|
CloseHandle(s->hrecv);
|
|
s->hrecv = NULL;
|
|
}
|
|
if (s->hcom) {
|
|
CloseHandle(s->hcom);
|
|
s->hcom = NULL;
|
|
}
|
|
if (s->fpipe)
|
|
qemu_del_polling_cb(win_chr_pipe_poll, chr);
|
|
else
|
|
qemu_del_polling_cb(win_chr_poll, chr);
|
|
}
|
|
|
|
static int win_chr_init(CharDriverState *chr, const char *filename)
|
|
{
|
|
WinCharState *s = chr->opaque;
|
|
COMMCONFIG comcfg;
|
|
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
|
|
COMSTAT comstat;
|
|
DWORD size;
|
|
DWORD err;
|
|
|
|
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
if (!s->hsend) {
|
|
fprintf(stderr, "Failed CreateEvent\n");
|
|
goto fail;
|
|
}
|
|
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
if (!s->hrecv) {
|
|
fprintf(stderr, "Failed CreateEvent\n");
|
|
goto fail;
|
|
}
|
|
|
|
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
|
|
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
|
if (s->hcom == INVALID_HANDLE_VALUE) {
|
|
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
|
s->hcom = NULL;
|
|
goto fail;
|
|
}
|
|
|
|
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
|
fprintf(stderr, "Failed SetupComm\n");
|
|
goto fail;
|
|
}
|
|
|
|
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
|
size = sizeof(COMMCONFIG);
|
|
GetDefaultCommConfig(filename, &comcfg, &size);
|
|
comcfg.dcb.DCBlength = sizeof(DCB);
|
|
CommConfigDialog(filename, NULL, &comcfg);
|
|
|
|
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
|
fprintf(stderr, "Failed SetCommState\n");
|
|
goto fail;
|
|
}
|
|
|
|
if (!SetCommMask(s->hcom, EV_ERR)) {
|
|
fprintf(stderr, "Failed SetCommMask\n");
|
|
goto fail;
|
|
}
|
|
|
|
cto.ReadIntervalTimeout = MAXDWORD;
|
|
if (!SetCommTimeouts(s->hcom, &cto)) {
|
|
fprintf(stderr, "Failed SetCommTimeouts\n");
|
|
goto fail;
|
|
}
|
|
|
|
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
|
fprintf(stderr, "Failed ClearCommError\n");
|
|
goto fail;
|
|
}
|
|
qemu_add_polling_cb(win_chr_poll, chr);
|
|
return 0;
|
|
|
|
fail:
|
|
win_chr_close(chr);
|
|
return -1;
|
|
}
|
|
|
|
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1)
|
|
{
|
|
WinCharState *s = chr->opaque;
|
|
DWORD len, ret, size, err;
|
|
|
|
len = len1;
|
|
ZeroMemory(&s->osend, sizeof(s->osend));
|
|
s->osend.hEvent = s->hsend;
|
|
while (len > 0) {
|
|
if (s->hsend)
|
|
ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
|
|
else
|
|
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
|
if (!ret) {
|
|
err = GetLastError();
|
|
if (err == ERROR_IO_PENDING) {
|
|
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
|
|
if (ret) {
|
|
buf += size;
|
|
len -= size;
|
|
} else {
|
|
break;
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
} else {
|
|
buf += size;
|
|
len -= size;
|
|
}
|
|
}
|
|
return len1 - len;
|
|
}
|
|
|
|
static int win_chr_read_poll(CharDriverState *chr)
|
|
{
|
|
WinCharState *s = chr->opaque;
|
|
|
|
s->max_size = qemu_chr_can_read(chr);
|
|
return s->max_size;
|
|
}
|
|
|
|
static void win_chr_readfile(CharDriverState *chr)
|
|
{
|
|
WinCharState *s = chr->opaque;
|
|
int ret, err;
|
|
uint8_t buf[1024];
|
|
DWORD size;
|
|
|
|
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
|
s->orecv.hEvent = s->hrecv;
|
|
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
|
|
if (!ret) {
|
|
err = GetLastError();
|
|
if (err == ERROR_IO_PENDING) {
|
|
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
|
|
}
|
|
}
|
|
|
|
if (size > 0) {
|
|
qemu_chr_read(chr, buf, size);
|
|
}
|
|
}
|
|
|
|
static void win_chr_read(CharDriverState *chr)
|
|
{
|
|
WinCharState *s = chr->opaque;
|
|
|
|
if (s->len > s->max_size)
|
|
s->len = s->max_size;
|
|
if (s->len == 0)
|
|
return;
|
|
|
|
win_chr_readfile(chr);
|
|
}
|
|
|
|
static int win_chr_poll(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
WinCharState *s = chr->opaque;
|
|
COMSTAT status;
|
|
DWORD comerr;
|
|
|
|
ClearCommError(s->hcom, &comerr, &status);
|
|
if (status.cbInQue > 0) {
|
|
s->len = status.cbInQue;
|
|
win_chr_read_poll(chr);
|
|
win_chr_read(chr);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_win(const char *filename)
|
|
{
|
|
CharDriverState *chr;
|
|
WinCharState *s;
|
|
|
|
chr = qemu_mallocz(sizeof(CharDriverState));
|
|
s = qemu_mallocz(sizeof(WinCharState));
|
|
chr->opaque = s;
|
|
chr->chr_write = win_chr_write;
|
|
chr->chr_close = win_chr_close;
|
|
|
|
if (win_chr_init(chr, filename) < 0) {
|
|
free(s);
|
|
free(chr);
|
|
return NULL;
|
|
}
|
|
qemu_chr_reset(chr);
|
|
return chr;
|
|
}
|
|
|
|
static int win_chr_pipe_poll(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
WinCharState *s = chr->opaque;
|
|
DWORD size;
|
|
|
|
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
|
|
if (size > 0) {
|
|
s->len = size;
|
|
win_chr_read_poll(chr);
|
|
win_chr_read(chr);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
|
|
{
|
|
WinCharState *s = chr->opaque;
|
|
OVERLAPPED ov;
|
|
int ret;
|
|
DWORD size;
|
|
char openname[256];
|
|
|
|
s->fpipe = TRUE;
|
|
|
|
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
if (!s->hsend) {
|
|
fprintf(stderr, "Failed CreateEvent\n");
|
|
goto fail;
|
|
}
|
|
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
if (!s->hrecv) {
|
|
fprintf(stderr, "Failed CreateEvent\n");
|
|
goto fail;
|
|
}
|
|
|
|
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename);
|
|
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
|
|
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
|
|
PIPE_WAIT,
|
|
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
|
if (s->hcom == INVALID_HANDLE_VALUE) {
|
|
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
|
s->hcom = NULL;
|
|
goto fail;
|
|
}
|
|
|
|
ZeroMemory(&ov, sizeof(ov));
|
|
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
ret = ConnectNamedPipe(s->hcom, &ov);
|
|
if (ret) {
|
|
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
|
goto fail;
|
|
}
|
|
|
|
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
|
|
if (!ret) {
|
|
fprintf(stderr, "Failed GetOverlappedResult\n");
|
|
if (ov.hEvent) {
|
|
CloseHandle(ov.hEvent);
|
|
ov.hEvent = NULL;
|
|
}
|
|
goto fail;
|
|
}
|
|
|
|
if (ov.hEvent) {
|
|
CloseHandle(ov.hEvent);
|
|
ov.hEvent = NULL;
|
|
}
|
|
qemu_add_polling_cb(win_chr_pipe_poll, chr);
|
|
return 0;
|
|
|
|
fail:
|
|
win_chr_close(chr);
|
|
return -1;
|
|
}
|
|
|
|
|
|
static CharDriverState *qemu_chr_open_win_pipe(const char *filename)
|
|
{
|
|
CharDriverState *chr;
|
|
WinCharState *s;
|
|
|
|
chr = qemu_mallocz(sizeof(CharDriverState));
|
|
s = qemu_mallocz(sizeof(WinCharState));
|
|
chr->opaque = s;
|
|
chr->chr_write = win_chr_write;
|
|
chr->chr_close = win_chr_close;
|
|
|
|
if (win_chr_pipe_init(chr, filename) < 0) {
|
|
free(s);
|
|
free(chr);
|
|
return NULL;
|
|
}
|
|
qemu_chr_reset(chr);
|
|
return chr;
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
|
{
|
|
CharDriverState *chr;
|
|
WinCharState *s;
|
|
|
|
chr = qemu_mallocz(sizeof(CharDriverState));
|
|
s = qemu_mallocz(sizeof(WinCharState));
|
|
s->hcom = fd_out;
|
|
chr->opaque = s;
|
|
chr->chr_write = win_chr_write;
|
|
qemu_chr_reset(chr);
|
|
return chr;
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_win_con(const char *filename)
|
|
{
|
|
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_win_file_out(const char *file_out)
|
|
{
|
|
HANDLE fd_out;
|
|
|
|
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
|
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
if (fd_out == INVALID_HANDLE_VALUE)
|
|
return NULL;
|
|
|
|
return qemu_chr_open_win_file(fd_out);
|
|
}
|
|
#endif /* !_WIN32 */
|
|
|
|
/***********************************************************/
|
|
/* UDP Net console */
|
|
|
|
typedef struct {
|
|
int fd;
|
|
struct sockaddr_in daddr;
|
|
uint8_t buf[1024];
|
|
int bufcnt;
|
|
int bufptr;
|
|
int max_size;
|
|
} NetCharDriver;
|
|
|
|
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
|
|
{
|
|
NetCharDriver *s = chr->opaque;
|
|
|
|
return sendto(s->fd, buf, len, 0,
|
|
(struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in));
|
|
}
|
|
|
|
static int udp_chr_read_poll(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
NetCharDriver *s = chr->opaque;
|
|
|
|
s->max_size = qemu_chr_can_read(chr);
|
|
|
|
/* If there were any stray characters in the queue process them
|
|
* first
|
|
*/
|
|
while (s->max_size > 0 && s->bufptr < s->bufcnt) {
|
|
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
|
s->bufptr++;
|
|
s->max_size = qemu_chr_can_read(chr);
|
|
}
|
|
return s->max_size;
|
|
}
|
|
|
|
static void udp_chr_read(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
NetCharDriver *s = chr->opaque;
|
|
|
|
if (s->max_size == 0)
|
|
return;
|
|
s->bufcnt = recv(s->fd, s->buf, sizeof(s->buf), 0);
|
|
s->bufptr = s->bufcnt;
|
|
if (s->bufcnt <= 0)
|
|
return;
|
|
|
|
s->bufptr = 0;
|
|
while (s->max_size > 0 && s->bufptr < s->bufcnt) {
|
|
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
|
s->bufptr++;
|
|
s->max_size = qemu_chr_can_read(chr);
|
|
}
|
|
}
|
|
|
|
static void udp_chr_update_read_handler(CharDriverState *chr)
|
|
{
|
|
NetCharDriver *s = chr->opaque;
|
|
|
|
if (s->fd >= 0) {
|
|
qemu_set_fd_handler2(s->fd, udp_chr_read_poll,
|
|
udp_chr_read, NULL, chr);
|
|
}
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_udp(const char *def)
|
|
{
|
|
CharDriverState *chr = NULL;
|
|
NetCharDriver *s = NULL;
|
|
int fd = -1;
|
|
struct sockaddr_in saddr;
|
|
|
|
chr = qemu_mallocz(sizeof(CharDriverState));
|
|
s = qemu_mallocz(sizeof(NetCharDriver));
|
|
|
|
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
|
if (fd < 0) {
|
|
perror("socket(PF_INET, SOCK_DGRAM)");
|
|
goto return_err;
|
|
}
|
|
|
|
if (parse_host_src_port(&s->daddr, &saddr, def) < 0) {
|
|
printf("Could not parse: %s\n", def);
|
|
goto return_err;
|
|
}
|
|
|
|
if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0)
|
|
{
|
|
perror("bind");
|
|
goto return_err;
|
|
}
|
|
|
|
s->fd = fd;
|
|
s->bufcnt = 0;
|
|
s->bufptr = 0;
|
|
chr->opaque = s;
|
|
chr->chr_write = udp_chr_write;
|
|
chr->chr_update_read_handler = udp_chr_update_read_handler;
|
|
return chr;
|
|
|
|
return_err:
|
|
if (chr)
|
|
free(chr);
|
|
if (s)
|
|
free(s);
|
|
if (fd >= 0)
|
|
closesocket(fd);
|
|
return NULL;
|
|
}
|
|
|
|
/***********************************************************/
|
|
/* TCP Net console */
|
|
|
|
typedef struct {
|
|
int fd, listen_fd;
|
|
int connected;
|
|
int max_size;
|
|
int do_telnetopt;
|
|
int do_nodelay;
|
|
int is_unix;
|
|
} TCPCharDriver;
|
|
|
|
static void tcp_chr_accept(void *opaque);
|
|
|
|
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
|
|
{
|
|
TCPCharDriver *s = chr->opaque;
|
|
if (s->connected) {
|
|
return send_all(s->fd, buf, len);
|
|
} else {
|
|
/* XXX: indicate an error ? */
|
|
return len;
|
|
}
|
|
}
|
|
|
|
static int tcp_chr_read_poll(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
TCPCharDriver *s = chr->opaque;
|
|
if (!s->connected)
|
|
return 0;
|
|
s->max_size = qemu_chr_can_read(chr);
|
|
return s->max_size;
|
|
}
|
|
|
|
#define IAC 255
|
|
#define IAC_BREAK 243
|
|
static void tcp_chr_process_IAC_bytes(CharDriverState *chr,
|
|
TCPCharDriver *s,
|
|
uint8_t *buf, int *size)
|
|
{
|
|
/* Handle any telnet client's basic IAC options to satisfy char by
|
|
* char mode with no echo. All IAC options will be removed from
|
|
* the buf and the do_telnetopt variable will be used to track the
|
|
* state of the width of the IAC information.
|
|
*
|
|
* IAC commands come in sets of 3 bytes with the exception of the
|
|
* "IAC BREAK" command and the double IAC.
|
|
*/
|
|
|
|
int i;
|
|
int j = 0;
|
|
|
|
for (i = 0; i < *size; i++) {
|
|
if (s->do_telnetopt > 1) {
|
|
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
|
|
/* Double IAC means send an IAC */
|
|
if (j != i)
|
|
buf[j] = buf[i];
|
|
j++;
|
|
s->do_telnetopt = 1;
|
|
} else {
|
|
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
|
|
/* Handle IAC break commands by sending a serial break */
|
|
qemu_chr_event(chr, CHR_EVENT_BREAK);
|
|
s->do_telnetopt++;
|
|
}
|
|
s->do_telnetopt++;
|
|
}
|
|
if (s->do_telnetopt >= 4) {
|
|
s->do_telnetopt = 1;
|
|
}
|
|
} else {
|
|
if ((unsigned char)buf[i] == IAC) {
|
|
s->do_telnetopt = 2;
|
|
} else {
|
|
if (j != i)
|
|
buf[j] = buf[i];
|
|
j++;
|
|
}
|
|
}
|
|
}
|
|
*size = j;
|
|
}
|
|
|
|
static void tcp_chr_read(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
TCPCharDriver *s = chr->opaque;
|
|
uint8_t buf[1024];
|
|
int len, size;
|
|
|
|
if (!s->connected || s->max_size <= 0)
|
|
return;
|
|
len = sizeof(buf);
|
|
if (len > s->max_size)
|
|
len = s->max_size;
|
|
size = recv(s->fd, buf, len, 0);
|
|
if (size == 0) {
|
|
/* connection closed */
|
|
s->connected = 0;
|
|
if (s->listen_fd >= 0) {
|
|
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
|
}
|
|
qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
|
|
closesocket(s->fd);
|
|
s->fd = -1;
|
|
} else if (size > 0) {
|
|
if (s->do_telnetopt)
|
|
tcp_chr_process_IAC_bytes(chr, s, buf, &size);
|
|
if (size > 0)
|
|
qemu_chr_read(chr, buf, size);
|
|
}
|
|
}
|
|
|
|
static void tcp_chr_connect(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
TCPCharDriver *s = chr->opaque;
|
|
|
|
s->connected = 1;
|
|
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
|
|
tcp_chr_read, NULL, chr);
|
|
qemu_chr_reset(chr);
|
|
}
|
|
|
|
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
|
|
static void tcp_chr_telnet_init(int fd)
|
|
{
|
|
char buf[3];
|
|
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
|
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
|
|
send(fd, (char *)buf, 3, 0);
|
|
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
|
|
send(fd, (char *)buf, 3, 0);
|
|
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
|
|
send(fd, (char *)buf, 3, 0);
|
|
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
|
|
send(fd, (char *)buf, 3, 0);
|
|
}
|
|
|
|
static void socket_set_nodelay(int fd)
|
|
{
|
|
int val = 1;
|
|
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
|
|
}
|
|
|
|
static void tcp_chr_accept(void *opaque)
|
|
{
|
|
CharDriverState *chr = opaque;
|
|
TCPCharDriver *s = chr->opaque;
|
|
struct sockaddr_in saddr;
|
|
#ifndef _WIN32
|
|
struct sockaddr_un uaddr;
|
|
#endif
|
|
struct sockaddr *addr;
|
|
socklen_t len;
|
|
int fd;
|
|
|
|
for(;;) {
|
|
#ifndef _WIN32
|
|
if (s->is_unix) {
|
|
len = sizeof(uaddr);
|
|
addr = (struct sockaddr *)&uaddr;
|
|
} else
|
|
#endif
|
|
{
|
|
len = sizeof(saddr);
|
|
addr = (struct sockaddr *)&saddr;
|
|
}
|
|
fd = accept(s->listen_fd, addr, &len);
|
|
if (fd < 0 && errno != EINTR) {
|
|
return;
|
|
} else if (fd >= 0) {
|
|
if (s->do_telnetopt)
|
|
tcp_chr_telnet_init(fd);
|
|
break;
|
|
}
|
|
}
|
|
socket_set_nonblock(fd);
|
|
if (s->do_nodelay)
|
|
socket_set_nodelay(fd);
|
|
s->fd = fd;
|
|
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
|
|
tcp_chr_connect(chr);
|
|
}
|
|
|
|
static void tcp_chr_close(CharDriverState *chr)
|
|
{
|
|
TCPCharDriver *s = chr->opaque;
|
|
if (s->fd >= 0)
|
|
closesocket(s->fd);
|
|
if (s->listen_fd >= 0)
|
|
closesocket(s->listen_fd);
|
|
qemu_free(s);
|
|
}
|
|
|
|
static CharDriverState *qemu_chr_open_tcp(const char *host_str,
|
|
int is_telnet,
|
|
int is_unix)
|
|
{
|
|
CharDriverState *chr = NULL;
|
|
TCPCharDriver *s = NULL;
|
|
int fd = -1, offset = 0;
|
|
int is_listen = 0;
|
|
int is_waitconnect = 1;
|
|
int do_nodelay = 0;
|
|
const char *ptr;
|
|
|
|
ptr = host_str;
|
|
while((ptr = strchr(ptr,','))) {
|
|
ptr++;
|
|
if (!strncmp(ptr,"server",6)) {
|
|
is_listen = 1;
|
|
} else if (!strncmp(ptr,"nowait",6)) {
|
|
is_waitconnect = 0;
|
|
} else if (!strncmp(ptr,"nodelay",6)) {
|
|
do_nodelay = 1;
|
|
} else if (!strncmp(ptr,"to=",3)) {
|
|
/* nothing, inet_listen() parses this one */;
|
|
} else if (!strncmp(ptr,"ipv4",4)) {
|
|
/* nothing, inet_connect() and inet_listen() parse this one */;
|
|
} else if (!strncmp(ptr,"ipv6",4)) {
|
|
/* nothing, inet_connect() and inet_listen() parse this one */;
|
|
} else {
|
|
printf("Unknown option: %s\n", ptr);
|
|
goto fail;
|
|
}
|
|
}
|
|
if (!is_listen)
|
|
is_waitconnect = 0;
|
|
|
|
chr = qemu_mallocz(sizeof(CharDriverState));
|
|
s = qemu_mallocz(sizeof(TCPCharDriver));
|
|
|
|
if (is_listen) {
|
|
chr->filename = qemu_malloc(256);
|
|
if (is_unix) {
|
|
pstrcpy(chr->filename, 256, "unix:");
|
|
} else if (is_telnet) {
|
|
pstrcpy(chr->filename, 256, "telnet:");
|
|
} else {
|
|
pstrcpy(chr->filename, 256, "tcp:");
|
|
}
|
|
offset = strlen(chr->filename);
|
|
}
|
|
if (is_unix) {
|
|
if (is_listen) {
|
|
fd = unix_listen(host_str, chr->filename + offset, 256 - offset);
|
|
} else {
|
|
fd = unix_connect(host_str);
|
|
}
|
|
} else {
|
|
if (is_listen) {
|
|
fd = inet_listen(host_str, chr->filename + offset, 256 - offset,
|
|
SOCK_STREAM, 0);
|
|
} else {
|
|
fd = inet_connect(host_str, SOCK_STREAM);
|
|
}
|
|
}
|
|
if (fd < 0)
|
|
goto fail;
|
|
|
|
if (!is_waitconnect)
|
|
socket_set_nonblock(fd);
|
|
|
|
s->connected = 0;
|
|
s->fd = -1;
|
|
s->listen_fd = -1;
|
|
s->is_unix = is_unix;
|
|
s->do_nodelay = do_nodelay && !is_unix;
|
|
|
|
chr->opaque = s;
|
|
chr->chr_write = tcp_chr_write;
|
|
chr->chr_close = tcp_chr_close;
|
|
|
|
if (is_listen) {
|
|
s->listen_fd = fd;
|
|
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
|
if (is_telnet)
|
|
s->do_telnetopt = 1;
|
|
} else {
|
|
s->connected = 1;
|
|
s->fd = fd;
|
|
socket_set_nodelay(fd);
|
|
tcp_chr_connect(chr);
|
|
}
|
|
|
|
if (is_listen && is_waitconnect) {
|
|
printf("QEMU waiting for connection on: %s\n",
|
|
chr->filename ? chr->filename : host_str);
|
|
tcp_chr_accept(chr);
|
|
socket_set_nonblock(s->listen_fd);
|
|
}
|
|
|
|
return chr;
|
|
fail:
|
|
if (fd >= 0)
|
|
closesocket(fd);
|
|
qemu_free(s);
|
|
qemu_free(chr);
|
|
return NULL;
|
|
}
|
|
|
|
CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
|
|
{
|
|
const char *p;
|
|
CharDriverState *chr;
|
|
|
|
if (!strcmp(filename, "vc")) {
|
|
chr = text_console_init(0);
|
|
} else
|
|
if (strstart(filename, "vc:", &p)) {
|
|
chr = text_console_init(p);
|
|
} else
|
|
if (!strcmp(filename, "null")) {
|
|
chr = qemu_chr_open_null();
|
|
} else
|
|
if (strstart(filename, "tcp:", &p)) {
|
|
chr = qemu_chr_open_tcp(p, 0, 0);
|
|
} else
|
|
if (strstart(filename, "telnet:", &p)) {
|
|
chr = qemu_chr_open_tcp(p, 1, 0);
|
|
} else
|
|
if (strstart(filename, "udp:", &p)) {
|
|
chr = qemu_chr_open_udp(p);
|
|
} else
|
|
if (strstart(filename, "mon:", &p)) {
|
|
chr = qemu_chr_open(label, p, NULL);
|
|
if (chr) {
|
|
chr = qemu_chr_open_mux(chr);
|
|
monitor_init(chr, MONITOR_USE_READLINE);
|
|
} else {
|
|
printf("Unable to open driver: %s\n", p);
|
|
}
|
|
} else if (!strcmp(filename, "msmouse")) {
|
|
chr = qemu_chr_open_msmouse();
|
|
} else
|
|
#ifndef _WIN32
|
|
if (strstart(filename, "unix:", &p)) {
|
|
chr = qemu_chr_open_tcp(p, 0, 1);
|
|
} else if (strstart(filename, "file:", &p)) {
|
|
chr = qemu_chr_open_file_out(p);
|
|
} else if (strstart(filename, "pipe:", &p)) {
|
|
chr = qemu_chr_open_pipe(p);
|
|
} else if (!strcmp(filename, "pty")) {
|
|
chr = qemu_chr_open_pty();
|
|
} else if (!strcmp(filename, "stdio")) {
|
|
chr = qemu_chr_open_stdio();
|
|
} else
|
|
#if defined(__linux__)
|
|
if (strstart(filename, "/dev/parport", NULL)) {
|
|
chr = qemu_chr_open_pp(filename);
|
|
} else
|
|
#elif defined(__FreeBSD__) || defined(__DragonFly__)
|
|
if (strstart(filename, "/dev/ppi", NULL)) {
|
|
chr = qemu_chr_open_pp(filename);
|
|
} else
|
|
#endif
|
|
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
|
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
|
|
if (strstart(filename, "/dev/", NULL)) {
|
|
chr = qemu_chr_open_tty(filename);
|
|
} else
|
|
#endif
|
|
#else /* !_WIN32 */
|
|
if (strstart(filename, "COM", NULL)) {
|
|
chr = qemu_chr_open_win(filename);
|
|
} else
|
|
if (strstart(filename, "pipe:", &p)) {
|
|
chr = qemu_chr_open_win_pipe(p);
|
|
} else
|
|
if (strstart(filename, "con:", NULL)) {
|
|
chr = qemu_chr_open_win_con(filename);
|
|
} else
|
|
if (strstart(filename, "file:", &p)) {
|
|
chr = qemu_chr_open_win_file_out(p);
|
|
} else
|
|
#endif
|
|
#ifdef CONFIG_BRLAPI
|
|
if (!strcmp(filename, "braille")) {
|
|
chr = chr_baum_init();
|
|
} else
|
|
#endif
|
|
{
|
|
chr = NULL;
|
|
}
|
|
|
|
if (chr) {
|
|
if (!chr->filename)
|
|
chr->filename = qemu_strdup(filename);
|
|
chr->init = init;
|
|
chr->label = qemu_strdup(label);
|
|
TAILQ_INSERT_TAIL(&chardevs, chr, next);
|
|
}
|
|
return chr;
|
|
}
|
|
|
|
void qemu_chr_close(CharDriverState *chr)
|
|
{
|
|
TAILQ_REMOVE(&chardevs, chr, next);
|
|
if (chr->chr_close)
|
|
chr->chr_close(chr);
|
|
qemu_free(chr->filename);
|
|
qemu_free(chr->label);
|
|
qemu_free(chr);
|
|
}
|
|
|
|
void qemu_chr_info(Monitor *mon)
|
|
{
|
|
CharDriverState *chr;
|
|
|
|
TAILQ_FOREACH(chr, &chardevs, next) {
|
|
monitor_printf(mon, "%s: filename=%s\n", chr->label, chr->filename);
|
|
}
|
|
}
|