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/*
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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 "hw/usb.h" |
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#include "hw/baum.h" |
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#include "hw/msmouse.h" |
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#include "qmp-commands.h" |
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#include <unistd.h> |
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#include <fcntl.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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#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 CONFIG_BSD
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#include <sys/stat.h> |
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#if defined(__GLIBC__)
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#include <pty.h> |
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#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
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#include <libutil.h> |
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#else
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#include <util.h> |
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#endif
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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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 <dev/misc/ppi/ppi.h> |
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#include <bus/ppbus/ppbconf.h> |
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#endif
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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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#include "ui/qemu-spice.h" |
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#define READ_BUF_LEN 4096 |
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/***********************************************************/
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/* character device */
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static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
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QTAILQ_HEAD_INITIALIZER(chardevs); |
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void qemu_chr_be_event(CharDriverState *s, int event) |
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{ |
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/* Keep track if the char device is open */
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switch (event) {
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case CHR_EVENT_OPENED:
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s->opened = 1;
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break;
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case CHR_EVENT_CLOSED:
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s->opened = 0;
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break;
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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_fire_open_event(void *opaque) |
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{ |
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CharDriverState *s = opaque; |
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qemu_chr_be_event(s, CHR_EVENT_OPENED); |
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qemu_free_timer(s->open_timer); |
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s->open_timer = NULL;
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} |
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void qemu_chr_generic_open(CharDriverState *s)
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{ |
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if (s->open_timer == NULL) { |
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s->open_timer = qemu_new_timer_ms(rt_clock, |
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qemu_chr_fire_open_event, s); |
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qemu_mod_timer(s->open_timer, qemu_get_clock_ms(rt_clock) - 1);
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} |
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} |
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int qemu_chr_fe_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_fe_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_be_can_write(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_be_write(CharDriverState *s, uint8_t *buf, int len) |
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{ |
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if (s->chr_read) {
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s->chr_read(s->handler_opaque, buf, len); |
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} |
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} |
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int qemu_chr_fe_get_msgfd(CharDriverState *s)
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{ |
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return s->get_msgfd ? s->get_msgfd(s) : -1; |
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} |
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int qemu_chr_add_client(CharDriverState *s, int fd) |
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{ |
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return s->chr_add_client ? s->chr_add_client(s, fd) : -1; |
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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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qemu_notify_event(); |
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} |
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void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...) |
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{ |
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char buf[READ_BUF_LEN];
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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_fe_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_add_handlers(CharDriverState *s,
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IOCanReadHandler *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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if (!opaque && !fd_can_read && !fd_read && !fd_event) {
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/* chr driver being released. */
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++s->avail_connections; |
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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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/* We're connecting to an already opened device, so let's make sure we
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also get the open event */
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if (s->opened) {
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qemu_chr_generic_open(s); |
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} |
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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(QemuOpts *opts)
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{ |
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CharDriverState *chr; |
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chr = g_malloc0(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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#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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IOCanReadHandler *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 focus;
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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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int timestamps;
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int linestart;
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int64_t timestamps_start; |
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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 (!d->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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if (d->linestart) {
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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_ms(rt_clock); |
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if (d->timestamps_start == -1) |
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d->timestamps_start = ti; |
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ti -= d->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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d->linestart = 0;
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} |
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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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d->linestart = 1;
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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++) { |
328 |
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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} |
335 |
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static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event) |
337 |
{ |
338 |
if (d->chr_event[mux_nr])
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d->chr_event[mux_nr](d->ext_opaque[mux_nr], event); |
340 |
} |
341 |
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342 |
static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
343 |
{ |
344 |
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 '?': |
350 |
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"; |
356 |
chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
357 |
exit(0);
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break;
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} |
360 |
case 's': |
361 |
bdrv_commit_all(); |
362 |
break;
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363 |
case 'b': |
364 |
qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
365 |
break;
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366 |
case 'c': |
367 |
/* Switch to the next registered device */
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mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
369 |
d->focus++; |
370 |
if (d->focus >= d->mux_cnt)
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d->focus = 0;
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mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
373 |
break;
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374 |
case 't': |
375 |
d->timestamps = !d->timestamps; |
376 |
d->timestamps_start = -1;
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377 |
d->linestart = 0;
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378 |
break;
|
379 |
} |
380 |
} else if (ch == term_escape_char) { |
381 |
d->term_got_escape = 1;
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382 |
} else {
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383 |
send_char:
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384 |
return 1; |
385 |
} |
386 |
return 0; |
387 |
} |
388 |
|
389 |
static void mux_chr_accept_input(CharDriverState *chr) |
390 |
{ |
391 |
MuxDriver *d = chr->opaque; |
392 |
int m = d->focus;
|
393 |
|
394 |
while (d->prod[m] != d->cons[m] &&
|
395 |
d->chr_can_read[m] && |
396 |
d->chr_can_read[m](d->ext_opaque[m])) { |
397 |
d->chr_read[m](d->ext_opaque[m], |
398 |
&d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
|
399 |
} |
400 |
} |
401 |
|
402 |
static int mux_chr_can_read(void *opaque) |
403 |
{ |
404 |
CharDriverState *chr = opaque; |
405 |
MuxDriver *d = chr->opaque; |
406 |
int m = d->focus;
|
407 |
|
408 |
if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
|
409 |
return 1; |
410 |
if (d->chr_can_read[m])
|
411 |
return d->chr_can_read[m](d->ext_opaque[m]);
|
412 |
return 0; |
413 |
} |
414 |
|
415 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
416 |
{ |
417 |
CharDriverState *chr = opaque; |
418 |
MuxDriver *d = chr->opaque; |
419 |
int m = d->focus;
|
420 |
int i;
|
421 |
|
422 |
mux_chr_accept_input (opaque); |
423 |
|
424 |
for(i = 0; i < size; i++) |
425 |
if (mux_proc_byte(chr, d, buf[i])) {
|
426 |
if (d->prod[m] == d->cons[m] &&
|
427 |
d->chr_can_read[m] && |
428 |
d->chr_can_read[m](d->ext_opaque[m])) |
429 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
430 |
else
|
431 |
d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i]; |
432 |
} |
433 |
} |
434 |
|
435 |
static void mux_chr_event(void *opaque, int event) |
436 |
{ |
437 |
CharDriverState *chr = opaque; |
438 |
MuxDriver *d = chr->opaque; |
439 |
int i;
|
440 |
|
441 |
/* Send the event to all registered listeners */
|
442 |
for (i = 0; i < d->mux_cnt; i++) |
443 |
mux_chr_send_event(d, i, event); |
444 |
} |
445 |
|
446 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
447 |
{ |
448 |
MuxDriver *d = chr->opaque; |
449 |
|
450 |
if (d->mux_cnt >= MAX_MUX) {
|
451 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
452 |
return;
|
453 |
} |
454 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
455 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
456 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
457 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
458 |
/* Fix up the real driver with mux routines */
|
459 |
if (d->mux_cnt == 0) { |
460 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
461 |
mux_chr_event, chr); |
462 |
} |
463 |
if (d->focus != -1) { |
464 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
465 |
} |
466 |
d->focus = d->mux_cnt; |
467 |
d->mux_cnt++; |
468 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
469 |
} |
470 |
|
471 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
472 |
{ |
473 |
CharDriverState *chr; |
474 |
MuxDriver *d; |
475 |
|
476 |
chr = g_malloc0(sizeof(CharDriverState));
|
477 |
d = g_malloc0(sizeof(MuxDriver));
|
478 |
|
479 |
chr->opaque = d; |
480 |
d->drv = drv; |
481 |
d->focus = -1;
|
482 |
chr->chr_write = mux_chr_write; |
483 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
484 |
chr->chr_accept_input = mux_chr_accept_input; |
485 |
/* Frontend guest-open / -close notification is not support with muxes */
|
486 |
chr->chr_guest_open = NULL;
|
487 |
chr->chr_guest_close = NULL;
|
488 |
|
489 |
/* Muxes are always open on creation */
|
490 |
qemu_chr_generic_open(chr); |
491 |
|
492 |
return chr;
|
493 |
} |
494 |
|
495 |
|
496 |
#ifdef _WIN32
|
497 |
int send_all(int fd, const void *buf, int len1) |
498 |
{ |
499 |
int ret, len;
|
500 |
|
501 |
len = len1; |
502 |
while (len > 0) { |
503 |
ret = send(fd, buf, len, 0);
|
504 |
if (ret < 0) { |
505 |
errno = WSAGetLastError(); |
506 |
if (errno != WSAEWOULDBLOCK) {
|
507 |
return -1; |
508 |
} |
509 |
} else if (ret == 0) { |
510 |
break;
|
511 |
} else {
|
512 |
buf += ret; |
513 |
len -= ret; |
514 |
} |
515 |
} |
516 |
return len1 - len;
|
517 |
} |
518 |
|
519 |
#else
|
520 |
|
521 |
int send_all(int fd, const void *_buf, int len1) |
522 |
{ |
523 |
int ret, len;
|
524 |
const uint8_t *buf = _buf;
|
525 |
|
526 |
len = len1; |
527 |
while (len > 0) { |
528 |
ret = write(fd, buf, len); |
529 |
if (ret < 0) { |
530 |
if (errno != EINTR && errno != EAGAIN)
|
531 |
return -1; |
532 |
} else if (ret == 0) { |
533 |
break;
|
534 |
} else {
|
535 |
buf += ret; |
536 |
len -= ret; |
537 |
} |
538 |
} |
539 |
return len1 - len;
|
540 |
} |
541 |
#endif /* !_WIN32 */ |
542 |
|
543 |
#define STDIO_MAX_CLIENTS 1 |
544 |
static int stdio_nb_clients; |
545 |
|
546 |
#ifndef _WIN32
|
547 |
|
548 |
typedef struct { |
549 |
int fd_in, fd_out;
|
550 |
int max_size;
|
551 |
} FDCharDriver; |
552 |
|
553 |
|
554 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
555 |
{ |
556 |
FDCharDriver *s = chr->opaque; |
557 |
return send_all(s->fd_out, buf, len);
|
558 |
} |
559 |
|
560 |
static int fd_chr_read_poll(void *opaque) |
561 |
{ |
562 |
CharDriverState *chr = opaque; |
563 |
FDCharDriver *s = chr->opaque; |
564 |
|
565 |
s->max_size = qemu_chr_be_can_write(chr); |
566 |
return s->max_size;
|
567 |
} |
568 |
|
569 |
static void fd_chr_read(void *opaque) |
570 |
{ |
571 |
CharDriverState *chr = opaque; |
572 |
FDCharDriver *s = chr->opaque; |
573 |
int size, len;
|
574 |
uint8_t buf[READ_BUF_LEN]; |
575 |
|
576 |
len = sizeof(buf);
|
577 |
if (len > s->max_size)
|
578 |
len = s->max_size; |
579 |
if (len == 0) |
580 |
return;
|
581 |
size = read(s->fd_in, buf, len); |
582 |
if (size == 0) { |
583 |
/* FD has been closed. Remove it from the active list. */
|
584 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
585 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
586 |
return;
|
587 |
} |
588 |
if (size > 0) { |
589 |
qemu_chr_be_write(chr, buf, size); |
590 |
} |
591 |
} |
592 |
|
593 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
594 |
{ |
595 |
FDCharDriver *s = chr->opaque; |
596 |
|
597 |
if (s->fd_in >= 0) { |
598 |
if (display_type == DT_NOGRAPHIC && s->fd_in == 0) { |
599 |
} else {
|
600 |
qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, |
601 |
fd_chr_read, NULL, chr);
|
602 |
} |
603 |
} |
604 |
} |
605 |
|
606 |
static void fd_chr_close(struct CharDriverState *chr) |
607 |
{ |
608 |
FDCharDriver *s = chr->opaque; |
609 |
|
610 |
if (s->fd_in >= 0) { |
611 |
if (display_type == DT_NOGRAPHIC && s->fd_in == 0) { |
612 |
} else {
|
613 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
614 |
} |
615 |
} |
616 |
|
617 |
g_free(s); |
618 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
619 |
} |
620 |
|
621 |
/* open a character device to a unix fd */
|
622 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
623 |
{ |
624 |
CharDriverState *chr; |
625 |
FDCharDriver *s; |
626 |
|
627 |
chr = g_malloc0(sizeof(CharDriverState));
|
628 |
s = g_malloc0(sizeof(FDCharDriver));
|
629 |
s->fd_in = fd_in; |
630 |
s->fd_out = fd_out; |
631 |
chr->opaque = s; |
632 |
chr->chr_write = fd_chr_write; |
633 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
634 |
chr->chr_close = fd_chr_close; |
635 |
|
636 |
qemu_chr_generic_open(chr); |
637 |
|
638 |
return chr;
|
639 |
} |
640 |
|
641 |
static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
|
642 |
{ |
643 |
int fd_out;
|
644 |
|
645 |
TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
|
646 |
O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
647 |
if (fd_out < 0) { |
648 |
return NULL; |
649 |
} |
650 |
return qemu_chr_open_fd(-1, fd_out); |
651 |
} |
652 |
|
653 |
static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
|
654 |
{ |
655 |
int fd_in, fd_out;
|
656 |
char filename_in[256], filename_out[256]; |
657 |
const char *filename = qemu_opt_get(opts, "path"); |
658 |
|
659 |
if (filename == NULL) { |
660 |
fprintf(stderr, "chardev: pipe: no filename given\n");
|
661 |
return NULL; |
662 |
} |
663 |
|
664 |
snprintf(filename_in, 256, "%s.in", filename); |
665 |
snprintf(filename_out, 256, "%s.out", filename); |
666 |
TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY)); |
667 |
TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY)); |
668 |
if (fd_in < 0 || fd_out < 0) { |
669 |
if (fd_in >= 0) |
670 |
close(fd_in); |
671 |
if (fd_out >= 0) |
672 |
close(fd_out); |
673 |
TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY)); |
674 |
if (fd_in < 0) { |
675 |
return NULL; |
676 |
} |
677 |
} |
678 |
return qemu_chr_open_fd(fd_in, fd_out);
|
679 |
} |
680 |
|
681 |
|
682 |
/* for STDIO, we handle the case where several clients use it
|
683 |
(nographic mode) */
|
684 |
|
685 |
#define TERM_FIFO_MAX_SIZE 1 |
686 |
|
687 |
static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
|
688 |
static int term_fifo_size; |
689 |
|
690 |
static int stdio_read_poll(void *opaque) |
691 |
{ |
692 |
CharDriverState *chr = opaque; |
693 |
|
694 |
/* try to flush the queue if needed */
|
695 |
if (term_fifo_size != 0 && qemu_chr_be_can_write(chr) > 0) { |
696 |
qemu_chr_be_write(chr, term_fifo, 1);
|
697 |
term_fifo_size = 0;
|
698 |
} |
699 |
/* see if we can absorb more chars */
|
700 |
if (term_fifo_size == 0) |
701 |
return 1; |
702 |
else
|
703 |
return 0; |
704 |
} |
705 |
|
706 |
static void stdio_read(void *opaque) |
707 |
{ |
708 |
int size;
|
709 |
uint8_t buf[1];
|
710 |
CharDriverState *chr = opaque; |
711 |
|
712 |
size = read(0, buf, 1); |
713 |
if (size == 0) { |
714 |
/* stdin has been closed. Remove it from the active list. */
|
715 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
716 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
717 |
return;
|
718 |
} |
719 |
if (size > 0) { |
720 |
if (qemu_chr_be_can_write(chr) > 0) { |
721 |
qemu_chr_be_write(chr, buf, 1);
|
722 |
} else if (term_fifo_size == 0) { |
723 |
term_fifo[term_fifo_size++] = buf[0];
|
724 |
} |
725 |
} |
726 |
} |
727 |
|
728 |
/* init terminal so that we can grab keys */
|
729 |
static struct termios oldtty; |
730 |
static int old_fd0_flags; |
731 |
static bool stdio_allow_signal; |
732 |
|
733 |
static void term_exit(void) |
734 |
{ |
735 |
tcsetattr (0, TCSANOW, &oldtty);
|
736 |
fcntl(0, F_SETFL, old_fd0_flags);
|
737 |
} |
738 |
|
739 |
static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo) |
740 |
{ |
741 |
struct termios tty;
|
742 |
|
743 |
tty = oldtty; |
744 |
if (!echo) {
|
745 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
746 |
|INLCR|IGNCR|ICRNL|IXON); |
747 |
tty.c_oflag |= OPOST; |
748 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
749 |
tty.c_cflag &= ~(CSIZE|PARENB); |
750 |
tty.c_cflag |= CS8; |
751 |
tty.c_cc[VMIN] = 1;
|
752 |
tty.c_cc[VTIME] = 0;
|
753 |
} |
754 |
/* if graphical mode, we allow Ctrl-C handling */
|
755 |
if (!stdio_allow_signal)
|
756 |
tty.c_lflag &= ~ISIG; |
757 |
|
758 |
tcsetattr (0, TCSANOW, &tty);
|
759 |
} |
760 |
|
761 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
762 |
{ |
763 |
term_exit(); |
764 |
stdio_nb_clients--; |
765 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
766 |
fd_chr_close(chr); |
767 |
} |
768 |
|
769 |
static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
|
770 |
{ |
771 |
CharDriverState *chr; |
772 |
|
773 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
|
774 |
return NULL; |
775 |
} |
776 |
if (stdio_nb_clients == 0) { |
777 |
old_fd0_flags = fcntl(0, F_GETFL);
|
778 |
tcgetattr (0, &oldtty);
|
779 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
780 |
atexit(term_exit); |
781 |
} |
782 |
|
783 |
chr = qemu_chr_open_fd(0, 1); |
784 |
chr->chr_close = qemu_chr_close_stdio; |
785 |
chr->chr_set_echo = qemu_chr_set_echo_stdio; |
786 |
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); |
787 |
stdio_nb_clients++; |
788 |
stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
|
789 |
display_type != DT_NOGRAPHIC); |
790 |
qemu_chr_fe_set_echo(chr, false);
|
791 |
|
792 |
return chr;
|
793 |
} |
794 |
|
795 |
#ifdef __sun__
|
796 |
/* Once Solaris has openpty(), this is going to be removed. */
|
797 |
static int openpty(int *amaster, int *aslave, char *name, |
798 |
struct termios *termp, struct winsize *winp) |
799 |
{ |
800 |
const char *slave; |
801 |
int mfd = -1, sfd = -1; |
802 |
|
803 |
*amaster = *aslave = -1;
|
804 |
|
805 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
806 |
if (mfd < 0) |
807 |
goto err;
|
808 |
|
809 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
810 |
goto err;
|
811 |
|
812 |
if ((slave = ptsname(mfd)) == NULL) |
813 |
goto err;
|
814 |
|
815 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
816 |
goto err;
|
817 |
|
818 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
819 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
820 |
goto err;
|
821 |
|
822 |
if (amaster)
|
823 |
*amaster = mfd; |
824 |
if (aslave)
|
825 |
*aslave = sfd; |
826 |
if (winp)
|
827 |
ioctl(sfd, TIOCSWINSZ, winp); |
828 |
|
829 |
return 0; |
830 |
|
831 |
err:
|
832 |
if (sfd != -1) |
833 |
close(sfd); |
834 |
close(mfd); |
835 |
return -1; |
836 |
} |
837 |
|
838 |
static void cfmakeraw (struct termios *termios_p) |
839 |
{ |
840 |
termios_p->c_iflag &= |
841 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
842 |
termios_p->c_oflag &= ~OPOST; |
843 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
844 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
845 |
termios_p->c_cflag |= CS8; |
846 |
|
847 |
termios_p->c_cc[VMIN] = 0;
|
848 |
termios_p->c_cc[VTIME] = 0;
|
849 |
} |
850 |
#endif
|
851 |
|
852 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
853 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ |
854 |
|| defined(__GLIBC__) |
855 |
|
856 |
typedef struct { |
857 |
int fd;
|
858 |
int connected;
|
859 |
int polling;
|
860 |
int read_bytes;
|
861 |
QEMUTimer *timer; |
862 |
} PtyCharDriver; |
863 |
|
864 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
865 |
static void pty_chr_state(CharDriverState *chr, int connected); |
866 |
|
867 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
868 |
{ |
869 |
PtyCharDriver *s = chr->opaque; |
870 |
|
871 |
if (!s->connected) {
|
872 |
/* guest sends data, check for (re-)connect */
|
873 |
pty_chr_update_read_handler(chr); |
874 |
return 0; |
875 |
} |
876 |
return send_all(s->fd, buf, len);
|
877 |
} |
878 |
|
879 |
static int pty_chr_read_poll(void *opaque) |
880 |
{ |
881 |
CharDriverState *chr = opaque; |
882 |
PtyCharDriver *s = chr->opaque; |
883 |
|
884 |
s->read_bytes = qemu_chr_be_can_write(chr); |
885 |
return s->read_bytes;
|
886 |
} |
887 |
|
888 |
static void pty_chr_read(void *opaque) |
889 |
{ |
890 |
CharDriverState *chr = opaque; |
891 |
PtyCharDriver *s = chr->opaque; |
892 |
int size, len;
|
893 |
uint8_t buf[READ_BUF_LEN]; |
894 |
|
895 |
len = sizeof(buf);
|
896 |
if (len > s->read_bytes)
|
897 |
len = s->read_bytes; |
898 |
if (len == 0) |
899 |
return;
|
900 |
size = read(s->fd, buf, len); |
901 |
if ((size == -1 && errno == EIO) || |
902 |
(size == 0)) {
|
903 |
pty_chr_state(chr, 0);
|
904 |
return;
|
905 |
} |
906 |
if (size > 0) { |
907 |
pty_chr_state(chr, 1);
|
908 |
qemu_chr_be_write(chr, buf, size); |
909 |
} |
910 |
} |
911 |
|
912 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
913 |
{ |
914 |
PtyCharDriver *s = chr->opaque; |
915 |
|
916 |
qemu_set_fd_handler2(s->fd, pty_chr_read_poll, |
917 |
pty_chr_read, NULL, chr);
|
918 |
s->polling = 1;
|
919 |
/*
|
920 |
* Short timeout here: just need wait long enougth that qemu makes
|
921 |
* it through the poll loop once. When reconnected we want a
|
922 |
* short timeout so we notice it almost instantly. Otherwise
|
923 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
924 |
* timeout to the normal (much longer) poll interval before the
|
925 |
* timer triggers.
|
926 |
*/
|
927 |
qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
|
928 |
} |
929 |
|
930 |
static void pty_chr_state(CharDriverState *chr, int connected) |
931 |
{ |
932 |
PtyCharDriver *s = chr->opaque; |
933 |
|
934 |
if (!connected) {
|
935 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
936 |
s->connected = 0;
|
937 |
s->polling = 0;
|
938 |
/* (re-)connect poll interval for idle guests: once per second.
|
939 |
* We check more frequently in case the guests sends data to
|
940 |
* the virtual device linked to our pty. */
|
941 |
qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
|
942 |
} else {
|
943 |
if (!s->connected)
|
944 |
qemu_chr_generic_open(chr); |
945 |
s->connected = 1;
|
946 |
} |
947 |
} |
948 |
|
949 |
static void pty_chr_timer(void *opaque) |
950 |
{ |
951 |
struct CharDriverState *chr = opaque;
|
952 |
PtyCharDriver *s = chr->opaque; |
953 |
|
954 |
if (s->connected)
|
955 |
return;
|
956 |
if (s->polling) {
|
957 |
/* If we arrive here without polling being cleared due
|
958 |
* read returning -EIO, then we are (re-)connected */
|
959 |
pty_chr_state(chr, 1);
|
960 |
return;
|
961 |
} |
962 |
|
963 |
/* Next poll ... */
|
964 |
pty_chr_update_read_handler(chr); |
965 |
} |
966 |
|
967 |
static void pty_chr_close(struct CharDriverState *chr) |
968 |
{ |
969 |
PtyCharDriver *s = chr->opaque; |
970 |
|
971 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
972 |
close(s->fd); |
973 |
qemu_del_timer(s->timer); |
974 |
qemu_free_timer(s->timer); |
975 |
g_free(s); |
976 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
977 |
} |
978 |
|
979 |
static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
|
980 |
{ |
981 |
CharDriverState *chr; |
982 |
PtyCharDriver *s; |
983 |
struct termios tty;
|
984 |
int master_fd, slave_fd, len;
|
985 |
#if defined(__OpenBSD__) || defined(__DragonFly__)
|
986 |
char pty_name[PATH_MAX];
|
987 |
#define q_ptsname(x) pty_name
|
988 |
#else
|
989 |
char *pty_name = NULL; |
990 |
#define q_ptsname(x) ptsname(x)
|
991 |
#endif
|
992 |
|
993 |
if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
994 |
return NULL; |
995 |
} |
996 |
|
997 |
/* Set raw attributes on the pty. */
|
998 |
tcgetattr(slave_fd, &tty); |
999 |
cfmakeraw(&tty); |
1000 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
1001 |
close(slave_fd); |
1002 |
|
1003 |
chr = g_malloc0(sizeof(CharDriverState));
|
1004 |
|
1005 |
len = strlen(q_ptsname(master_fd)) + 5;
|
1006 |
chr->filename = g_malloc(len); |
1007 |
snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
|
1008 |
qemu_opt_set(opts, "path", q_ptsname(master_fd));
|
1009 |
fprintf(stderr, "char device redirected to %s\n", q_ptsname(master_fd));
|
1010 |
|
1011 |
s = g_malloc0(sizeof(PtyCharDriver));
|
1012 |
chr->opaque = s; |
1013 |
chr->chr_write = pty_chr_write; |
1014 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
1015 |
chr->chr_close = pty_chr_close; |
1016 |
|
1017 |
s->fd = master_fd; |
1018 |
s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr); |
1019 |
|
1020 |
return chr;
|
1021 |
} |
1022 |
|
1023 |
static void tty_serial_init(int fd, int speed, |
1024 |
int parity, int data_bits, int stop_bits) |
1025 |
{ |
1026 |
struct termios tty;
|
1027 |
speed_t spd; |
1028 |
|
1029 |
#if 0
|
1030 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
1031 |
speed, parity, data_bits, stop_bits);
|
1032 |
#endif
|
1033 |
tcgetattr (fd, &tty); |
1034 |
|
1035 |
#define check_speed(val) if (speed <= val) { spd = B##val; break; } |
1036 |
speed = speed * 10 / 11; |
1037 |
do {
|
1038 |
check_speed(50);
|
1039 |
check_speed(75);
|
1040 |
check_speed(110);
|
1041 |
check_speed(134);
|
1042 |
check_speed(150);
|
1043 |
check_speed(200);
|
1044 |
check_speed(300);
|
1045 |
check_speed(600);
|
1046 |
check_speed(1200);
|
1047 |
check_speed(1800);
|
1048 |
check_speed(2400);
|
1049 |
check_speed(4800);
|
1050 |
check_speed(9600);
|
1051 |
check_speed(19200);
|
1052 |
check_speed(38400);
|
1053 |
/* Non-Posix values follow. They may be unsupported on some systems. */
|
1054 |
check_speed(57600);
|
1055 |
check_speed(115200);
|
1056 |
#ifdef B230400
|
1057 |
check_speed(230400);
|
1058 |
#endif
|
1059 |
#ifdef B460800
|
1060 |
check_speed(460800);
|
1061 |
#endif
|
1062 |
#ifdef B500000
|
1063 |
check_speed(500000);
|
1064 |
#endif
|
1065 |
#ifdef B576000
|
1066 |
check_speed(576000);
|
1067 |
#endif
|
1068 |
#ifdef B921600
|
1069 |
check_speed(921600);
|
1070 |
#endif
|
1071 |
#ifdef B1000000
|
1072 |
check_speed(1000000);
|
1073 |
#endif
|
1074 |
#ifdef B1152000
|
1075 |
check_speed(1152000);
|
1076 |
#endif
|
1077 |
#ifdef B1500000
|
1078 |
check_speed(1500000);
|
1079 |
#endif
|
1080 |
#ifdef B2000000
|
1081 |
check_speed(2000000);
|
1082 |
#endif
|
1083 |
#ifdef B2500000
|
1084 |
check_speed(2500000);
|
1085 |
#endif
|
1086 |
#ifdef B3000000
|
1087 |
check_speed(3000000);
|
1088 |
#endif
|
1089 |
#ifdef B3500000
|
1090 |
check_speed(3500000);
|
1091 |
#endif
|
1092 |
#ifdef B4000000
|
1093 |
check_speed(4000000);
|
1094 |
#endif
|
1095 |
spd = B115200; |
1096 |
} while (0); |
1097 |
|
1098 |
cfsetispeed(&tty, spd); |
1099 |
cfsetospeed(&tty, spd); |
1100 |
|
1101 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
1102 |
|INLCR|IGNCR|ICRNL|IXON); |
1103 |
tty.c_oflag |= OPOST; |
1104 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
1105 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
1106 |
switch(data_bits) {
|
1107 |
default:
|
1108 |
case 8: |
1109 |
tty.c_cflag |= CS8; |
1110 |
break;
|
1111 |
case 7: |
1112 |
tty.c_cflag |= CS7; |
1113 |
break;
|
1114 |
case 6: |
1115 |
tty.c_cflag |= CS6; |
1116 |
break;
|
1117 |
case 5: |
1118 |
tty.c_cflag |= CS5; |
1119 |
break;
|
1120 |
} |
1121 |
switch(parity) {
|
1122 |
default:
|
1123 |
case 'N': |
1124 |
break;
|
1125 |
case 'E': |
1126 |
tty.c_cflag |= PARENB; |
1127 |
break;
|
1128 |
case 'O': |
1129 |
tty.c_cflag |= PARENB | PARODD; |
1130 |
break;
|
1131 |
} |
1132 |
if (stop_bits == 2) |
1133 |
tty.c_cflag |= CSTOPB; |
1134 |
|
1135 |
tcsetattr (fd, TCSANOW, &tty); |
1136 |
} |
1137 |
|
1138 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
1139 |
{ |
1140 |
FDCharDriver *s = chr->opaque; |
1141 |
|
1142 |
switch(cmd) {
|
1143 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
1144 |
{ |
1145 |
QEMUSerialSetParams *ssp = arg; |
1146 |
tty_serial_init(s->fd_in, ssp->speed, ssp->parity, |
1147 |
ssp->data_bits, ssp->stop_bits); |
1148 |
} |
1149 |
break;
|
1150 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
1151 |
{ |
1152 |
int enable = *(int *)arg; |
1153 |
if (enable)
|
1154 |
tcsendbreak(s->fd_in, 1);
|
1155 |
} |
1156 |
break;
|
1157 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
1158 |
{ |
1159 |
int sarg = 0; |
1160 |
int *targ = (int *)arg; |
1161 |
ioctl(s->fd_in, TIOCMGET, &sarg); |
1162 |
*targ = 0;
|
1163 |
if (sarg & TIOCM_CTS)
|
1164 |
*targ |= CHR_TIOCM_CTS; |
1165 |
if (sarg & TIOCM_CAR)
|
1166 |
*targ |= CHR_TIOCM_CAR; |
1167 |
if (sarg & TIOCM_DSR)
|
1168 |
*targ |= CHR_TIOCM_DSR; |
1169 |
if (sarg & TIOCM_RI)
|
1170 |
*targ |= CHR_TIOCM_RI; |
1171 |
if (sarg & TIOCM_DTR)
|
1172 |
*targ |= CHR_TIOCM_DTR; |
1173 |
if (sarg & TIOCM_RTS)
|
1174 |
*targ |= CHR_TIOCM_RTS; |
1175 |
} |
1176 |
break;
|
1177 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
1178 |
{ |
1179 |
int sarg = *(int *)arg; |
1180 |
int targ = 0; |
1181 |
ioctl(s->fd_in, TIOCMGET, &targ); |
1182 |
targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR |
1183 |
| CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); |
1184 |
if (sarg & CHR_TIOCM_CTS)
|
1185 |
targ |= TIOCM_CTS; |
1186 |
if (sarg & CHR_TIOCM_CAR)
|
1187 |
targ |= TIOCM_CAR; |
1188 |
if (sarg & CHR_TIOCM_DSR)
|
1189 |
targ |= TIOCM_DSR; |
1190 |
if (sarg & CHR_TIOCM_RI)
|
1191 |
targ |= TIOCM_RI; |
1192 |
if (sarg & CHR_TIOCM_DTR)
|
1193 |
targ |= TIOCM_DTR; |
1194 |
if (sarg & CHR_TIOCM_RTS)
|
1195 |
targ |= TIOCM_RTS; |
1196 |
ioctl(s->fd_in, TIOCMSET, &targ); |
1197 |
} |
1198 |
break;
|
1199 |
default:
|
1200 |
return -ENOTSUP;
|
1201 |
} |
1202 |
return 0; |
1203 |
} |
1204 |
|
1205 |
static void qemu_chr_close_tty(CharDriverState *chr) |
1206 |
{ |
1207 |
FDCharDriver *s = chr->opaque; |
1208 |
int fd = -1; |
1209 |
|
1210 |
if (s) {
|
1211 |
fd = s->fd_in; |
1212 |
} |
1213 |
|
1214 |
fd_chr_close(chr); |
1215 |
|
1216 |
if (fd >= 0) { |
1217 |
close(fd); |
1218 |
} |
1219 |
} |
1220 |
|
1221 |
static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
|
1222 |
{ |
1223 |
const char *filename = qemu_opt_get(opts, "path"); |
1224 |
CharDriverState *chr; |
1225 |
int fd;
|
1226 |
|
1227 |
TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK)); |
1228 |
if (fd < 0) { |
1229 |
return NULL; |
1230 |
} |
1231 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
1232 |
chr = qemu_chr_open_fd(fd, fd); |
1233 |
chr->chr_ioctl = tty_serial_ioctl; |
1234 |
chr->chr_close = qemu_chr_close_tty; |
1235 |
return chr;
|
1236 |
} |
1237 |
#else /* ! __linux__ && ! __sun__ */ |
1238 |
static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
|
1239 |
{ |
1240 |
return NULL; |
1241 |
} |
1242 |
#endif /* __linux__ || __sun__ */ |
1243 |
|
1244 |
#if defined(__linux__)
|
1245 |
typedef struct { |
1246 |
int fd;
|
1247 |
int mode;
|
1248 |
} ParallelCharDriver; |
1249 |
|
1250 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
1251 |
{ |
1252 |
if (s->mode != mode) {
|
1253 |
int m = mode;
|
1254 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
1255 |
return 0; |
1256 |
s->mode = mode; |
1257 |
} |
1258 |
return 1; |
1259 |
} |
1260 |
|
1261 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1262 |
{ |
1263 |
ParallelCharDriver *drv = chr->opaque; |
1264 |
int fd = drv->fd;
|
1265 |
uint8_t b; |
1266 |
|
1267 |
switch(cmd) {
|
1268 |
case CHR_IOCTL_PP_READ_DATA:
|
1269 |
if (ioctl(fd, PPRDATA, &b) < 0) |
1270 |
return -ENOTSUP;
|
1271 |
*(uint8_t *)arg = b; |
1272 |
break;
|
1273 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1274 |
b = *(uint8_t *)arg; |
1275 |
if (ioctl(fd, PPWDATA, &b) < 0) |
1276 |
return -ENOTSUP;
|
1277 |
break;
|
1278 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1279 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
1280 |
return -ENOTSUP;
|
1281 |
/* Linux gives only the lowest bits, and no way to know data
|
1282 |
direction! For better compatibility set the fixed upper
|
1283 |
bits. */
|
1284 |
*(uint8_t *)arg = b | 0xc0;
|
1285 |
break;
|
1286 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1287 |
b = *(uint8_t *)arg; |
1288 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
1289 |
return -ENOTSUP;
|
1290 |
break;
|
1291 |
case CHR_IOCTL_PP_READ_STATUS:
|
1292 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
1293 |
return -ENOTSUP;
|
1294 |
*(uint8_t *)arg = b; |
1295 |
break;
|
1296 |
case CHR_IOCTL_PP_DATA_DIR:
|
1297 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
1298 |
return -ENOTSUP;
|
1299 |
break;
|
1300 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
1301 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1302 |
struct ParallelIOArg *parg = arg;
|
1303 |
int n = read(fd, parg->buffer, parg->count);
|
1304 |
if (n != parg->count) {
|
1305 |
return -EIO;
|
1306 |
} |
1307 |
} |
1308 |
break;
|
1309 |
case CHR_IOCTL_PP_EPP_READ:
|
1310 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1311 |
struct ParallelIOArg *parg = arg;
|
1312 |
int n = read(fd, parg->buffer, parg->count);
|
1313 |
if (n != parg->count) {
|
1314 |
return -EIO;
|
1315 |
} |
1316 |
} |
1317 |
break;
|
1318 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
1319 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1320 |
struct ParallelIOArg *parg = arg;
|
1321 |
int n = write(fd, parg->buffer, parg->count);
|
1322 |
if (n != parg->count) {
|
1323 |
return -EIO;
|
1324 |
} |
1325 |
} |
1326 |
break;
|
1327 |
case CHR_IOCTL_PP_EPP_WRITE:
|
1328 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1329 |
struct ParallelIOArg *parg = arg;
|
1330 |
int n = write(fd, parg->buffer, parg->count);
|
1331 |
if (n != parg->count) {
|
1332 |
return -EIO;
|
1333 |
} |
1334 |
} |
1335 |
break;
|
1336 |
default:
|
1337 |
return -ENOTSUP;
|
1338 |
} |
1339 |
return 0; |
1340 |
} |
1341 |
|
1342 |
static void pp_close(CharDriverState *chr) |
1343 |
{ |
1344 |
ParallelCharDriver *drv = chr->opaque; |
1345 |
int fd = drv->fd;
|
1346 |
|
1347 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
1348 |
ioctl(fd, PPRELEASE); |
1349 |
close(fd); |
1350 |
g_free(drv); |
1351 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
1352 |
} |
1353 |
|
1354 |
static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
|
1355 |
{ |
1356 |
const char *filename = qemu_opt_get(opts, "path"); |
1357 |
CharDriverState *chr; |
1358 |
ParallelCharDriver *drv; |
1359 |
int fd;
|
1360 |
|
1361 |
TFR(fd = qemu_open(filename, O_RDWR)); |
1362 |
if (fd < 0) { |
1363 |
return NULL; |
1364 |
} |
1365 |
|
1366 |
if (ioctl(fd, PPCLAIM) < 0) { |
1367 |
close(fd); |
1368 |
return NULL; |
1369 |
} |
1370 |
|
1371 |
drv = g_malloc0(sizeof(ParallelCharDriver));
|
1372 |
drv->fd = fd; |
1373 |
drv->mode = IEEE1284_MODE_COMPAT; |
1374 |
|
1375 |
chr = g_malloc0(sizeof(CharDriverState));
|
1376 |
chr->chr_write = null_chr_write; |
1377 |
chr->chr_ioctl = pp_ioctl; |
1378 |
chr->chr_close = pp_close; |
1379 |
chr->opaque = drv; |
1380 |
|
1381 |
qemu_chr_generic_open(chr); |
1382 |
|
1383 |
return chr;
|
1384 |
} |
1385 |
#endif /* __linux__ */ |
1386 |
|
1387 |
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
|
1388 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1389 |
{ |
1390 |
int fd = (int)(intptr_t)chr->opaque; |
1391 |
uint8_t b; |
1392 |
|
1393 |
switch(cmd) {
|
1394 |
case CHR_IOCTL_PP_READ_DATA:
|
1395 |
if (ioctl(fd, PPIGDATA, &b) < 0) |
1396 |
return -ENOTSUP;
|
1397 |
*(uint8_t *)arg = b; |
1398 |
break;
|
1399 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1400 |
b = *(uint8_t *)arg; |
1401 |
if (ioctl(fd, PPISDATA, &b) < 0) |
1402 |
return -ENOTSUP;
|
1403 |
break;
|
1404 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1405 |
if (ioctl(fd, PPIGCTRL, &b) < 0) |
1406 |
return -ENOTSUP;
|
1407 |
*(uint8_t *)arg = b; |
1408 |
break;
|
1409 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1410 |
b = *(uint8_t *)arg; |
1411 |
if (ioctl(fd, PPISCTRL, &b) < 0) |
1412 |
return -ENOTSUP;
|
1413 |
break;
|
1414 |
case CHR_IOCTL_PP_READ_STATUS:
|
1415 |
if (ioctl(fd, PPIGSTATUS, &b) < 0) |
1416 |
return -ENOTSUP;
|
1417 |
*(uint8_t *)arg = b; |
1418 |
break;
|
1419 |
default:
|
1420 |
return -ENOTSUP;
|
1421 |
} |
1422 |
return 0; |
1423 |
} |
1424 |
|
1425 |
static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
|
1426 |
{ |
1427 |
const char *filename = qemu_opt_get(opts, "path"); |
1428 |
CharDriverState *chr; |
1429 |
int fd;
|
1430 |
|
1431 |
fd = qemu_open(filename, O_RDWR); |
1432 |
if (fd < 0) { |
1433 |
return NULL; |
1434 |
} |
1435 |
|
1436 |
chr = g_malloc0(sizeof(CharDriverState));
|
1437 |
chr->opaque = (void *)(intptr_t)fd;
|
1438 |
chr->chr_write = null_chr_write; |
1439 |
chr->chr_ioctl = pp_ioctl; |
1440 |
return chr;
|
1441 |
} |
1442 |
#endif
|
1443 |
|
1444 |
#else /* _WIN32 */ |
1445 |
|
1446 |
static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];
|
1447 |
|
1448 |
typedef struct { |
1449 |
int max_size;
|
1450 |
HANDLE hcom, hrecv, hsend; |
1451 |
OVERLAPPED orecv, osend; |
1452 |
BOOL fpipe; |
1453 |
DWORD len; |
1454 |
} WinCharState; |
1455 |
|
1456 |
typedef struct { |
1457 |
HANDLE hStdIn; |
1458 |
HANDLE hInputReadyEvent; |
1459 |
HANDLE hInputDoneEvent; |
1460 |
HANDLE hInputThread; |
1461 |
uint8_t win_stdio_buf; |
1462 |
} WinStdioCharState; |
1463 |
|
1464 |
#define NSENDBUF 2048 |
1465 |
#define NRECVBUF 2048 |
1466 |
#define MAXCONNECT 1 |
1467 |
#define NTIMEOUT 5000 |
1468 |
|
1469 |
static int win_chr_poll(void *opaque); |
1470 |
static int win_chr_pipe_poll(void *opaque); |
1471 |
|
1472 |
static void win_chr_close(CharDriverState *chr) |
1473 |
{ |
1474 |
WinCharState *s = chr->opaque; |
1475 |
|
1476 |
if (s->hsend) {
|
1477 |
CloseHandle(s->hsend); |
1478 |
s->hsend = NULL;
|
1479 |
} |
1480 |
if (s->hrecv) {
|
1481 |
CloseHandle(s->hrecv); |
1482 |
s->hrecv = NULL;
|
1483 |
} |
1484 |
if (s->hcom) {
|
1485 |
CloseHandle(s->hcom); |
1486 |
s->hcom = NULL;
|
1487 |
} |
1488 |
if (s->fpipe)
|
1489 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
1490 |
else
|
1491 |
qemu_del_polling_cb(win_chr_poll, chr); |
1492 |
|
1493 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
1494 |
} |
1495 |
|
1496 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
1497 |
{ |
1498 |
WinCharState *s = chr->opaque; |
1499 |
COMMCONFIG comcfg; |
1500 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; |
1501 |
COMSTAT comstat; |
1502 |
DWORD size; |
1503 |
DWORD err; |
1504 |
|
1505 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1506 |
if (!s->hsend) {
|
1507 |
fprintf(stderr, "Failed CreateEvent\n");
|
1508 |
goto fail;
|
1509 |
} |
1510 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1511 |
if (!s->hrecv) {
|
1512 |
fprintf(stderr, "Failed CreateEvent\n");
|
1513 |
goto fail;
|
1514 |
} |
1515 |
|
1516 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
1517 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
1518 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1519 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
1520 |
s->hcom = NULL;
|
1521 |
goto fail;
|
1522 |
} |
1523 |
|
1524 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
1525 |
fprintf(stderr, "Failed SetupComm\n");
|
1526 |
goto fail;
|
1527 |
} |
1528 |
|
1529 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
1530 |
size = sizeof(COMMCONFIG);
|
1531 |
GetDefaultCommConfig(filename, &comcfg, &size); |
1532 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
1533 |
CommConfigDialog(filename, NULL, &comcfg);
|
1534 |
|
1535 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
1536 |
fprintf(stderr, "Failed SetCommState\n");
|
1537 |
goto fail;
|
1538 |
} |
1539 |
|
1540 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
1541 |
fprintf(stderr, "Failed SetCommMask\n");
|
1542 |
goto fail;
|
1543 |
} |
1544 |
|
1545 |
cto.ReadIntervalTimeout = MAXDWORD; |
1546 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
1547 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
1548 |
goto fail;
|
1549 |
} |
1550 |
|
1551 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
1552 |
fprintf(stderr, "Failed ClearCommError\n");
|
1553 |
goto fail;
|
1554 |
} |
1555 |
qemu_add_polling_cb(win_chr_poll, chr); |
1556 |
return 0; |
1557 |
|
1558 |
fail:
|
1559 |
win_chr_close(chr); |
1560 |
return -1; |
1561 |
} |
1562 |
|
1563 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
1564 |
{ |
1565 |
WinCharState *s = chr->opaque; |
1566 |
DWORD len, ret, size, err; |
1567 |
|
1568 |
len = len1; |
1569 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
1570 |
s->osend.hEvent = s->hsend; |
1571 |
while (len > 0) { |
1572 |
if (s->hsend)
|
1573 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
1574 |
else
|
1575 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
1576 |
if (!ret) {
|
1577 |
err = GetLastError(); |
1578 |
if (err == ERROR_IO_PENDING) {
|
1579 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
1580 |
if (ret) {
|
1581 |
buf += size; |
1582 |
len -= size; |
1583 |
} else {
|
1584 |
break;
|
1585 |
} |
1586 |
} else {
|
1587 |
break;
|
1588 |
} |
1589 |
} else {
|
1590 |
buf += size; |
1591 |
len -= size; |
1592 |
} |
1593 |
} |
1594 |
return len1 - len;
|
1595 |
} |
1596 |
|
1597 |
static int win_chr_read_poll(CharDriverState *chr) |
1598 |
{ |
1599 |
WinCharState *s = chr->opaque; |
1600 |
|
1601 |
s->max_size = qemu_chr_be_can_write(chr); |
1602 |
return s->max_size;
|
1603 |
} |
1604 |
|
1605 |
static void win_chr_readfile(CharDriverState *chr) |
1606 |
{ |
1607 |
WinCharState *s = chr->opaque; |
1608 |
int ret, err;
|
1609 |
uint8_t buf[READ_BUF_LEN]; |
1610 |
DWORD size; |
1611 |
|
1612 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
1613 |
s->orecv.hEvent = s->hrecv; |
1614 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
1615 |
if (!ret) {
|
1616 |
err = GetLastError(); |
1617 |
if (err == ERROR_IO_PENDING) {
|
1618 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
1619 |
} |
1620 |
} |
1621 |
|
1622 |
if (size > 0) { |
1623 |
qemu_chr_be_write(chr, buf, size); |
1624 |
} |
1625 |
} |
1626 |
|
1627 |
static void win_chr_read(CharDriverState *chr) |
1628 |
{ |
1629 |
WinCharState *s = chr->opaque; |
1630 |
|
1631 |
if (s->len > s->max_size)
|
1632 |
s->len = s->max_size; |
1633 |
if (s->len == 0) |
1634 |
return;
|
1635 |
|
1636 |
win_chr_readfile(chr); |
1637 |
} |
1638 |
|
1639 |
static int win_chr_poll(void *opaque) |
1640 |
{ |
1641 |
CharDriverState *chr = opaque; |
1642 |
WinCharState *s = chr->opaque; |
1643 |
COMSTAT status; |
1644 |
DWORD comerr; |
1645 |
|
1646 |
ClearCommError(s->hcom, &comerr, &status); |
1647 |
if (status.cbInQue > 0) { |
1648 |
s->len = status.cbInQue; |
1649 |
win_chr_read_poll(chr); |
1650 |
win_chr_read(chr); |
1651 |
return 1; |
1652 |
} |
1653 |
return 0; |
1654 |
} |
1655 |
|
1656 |
static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
|
1657 |
{ |
1658 |
const char *filename = qemu_opt_get(opts, "path"); |
1659 |
CharDriverState *chr; |
1660 |
WinCharState *s; |
1661 |
|
1662 |
chr = g_malloc0(sizeof(CharDriverState));
|
1663 |
s = g_malloc0(sizeof(WinCharState));
|
1664 |
chr->opaque = s; |
1665 |
chr->chr_write = win_chr_write; |
1666 |
chr->chr_close = win_chr_close; |
1667 |
|
1668 |
if (win_chr_init(chr, filename) < 0) { |
1669 |
g_free(s); |
1670 |
g_free(chr); |
1671 |
return NULL; |
1672 |
} |
1673 |
qemu_chr_generic_open(chr); |
1674 |
return chr;
|
1675 |
} |
1676 |
|
1677 |
static int win_chr_pipe_poll(void *opaque) |
1678 |
{ |
1679 |
CharDriverState *chr = opaque; |
1680 |
WinCharState *s = chr->opaque; |
1681 |
DWORD size; |
1682 |
|
1683 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
1684 |
if (size > 0) { |
1685 |
s->len = size; |
1686 |
win_chr_read_poll(chr); |
1687 |
win_chr_read(chr); |
1688 |
return 1; |
1689 |
} |
1690 |
return 0; |
1691 |
} |
1692 |
|
1693 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
1694 |
{ |
1695 |
WinCharState *s = chr->opaque; |
1696 |
OVERLAPPED ov; |
1697 |
int ret;
|
1698 |
DWORD size; |
1699 |
char openname[256]; |
1700 |
|
1701 |
s->fpipe = TRUE; |
1702 |
|
1703 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1704 |
if (!s->hsend) {
|
1705 |
fprintf(stderr, "Failed CreateEvent\n");
|
1706 |
goto fail;
|
1707 |
} |
1708 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1709 |
if (!s->hrecv) {
|
1710 |
fprintf(stderr, "Failed CreateEvent\n");
|
1711 |
goto fail;
|
1712 |
} |
1713 |
|
1714 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
1715 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
1716 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
1717 |
PIPE_WAIT, |
1718 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
1719 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1720 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
1721 |
s->hcom = NULL;
|
1722 |
goto fail;
|
1723 |
} |
1724 |
|
1725 |
ZeroMemory(&ov, sizeof(ov));
|
1726 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
1727 |
ret = ConnectNamedPipe(s->hcom, &ov); |
1728 |
if (ret) {
|
1729 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
1730 |
goto fail;
|
1731 |
} |
1732 |
|
1733 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
1734 |
if (!ret) {
|
1735 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
1736 |
if (ov.hEvent) {
|
1737 |
CloseHandle(ov.hEvent); |
1738 |
ov.hEvent = NULL;
|
1739 |
} |
1740 |
goto fail;
|
1741 |
} |
1742 |
|
1743 |
if (ov.hEvent) {
|
1744 |
CloseHandle(ov.hEvent); |
1745 |
ov.hEvent = NULL;
|
1746 |
} |
1747 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
1748 |
return 0; |
1749 |
|
1750 |
fail:
|
1751 |
win_chr_close(chr); |
1752 |
return -1; |
1753 |
} |
1754 |
|
1755 |
|
1756 |
static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
|
1757 |
{ |
1758 |
const char *filename = qemu_opt_get(opts, "path"); |
1759 |
CharDriverState *chr; |
1760 |
WinCharState *s; |
1761 |
|
1762 |
chr = g_malloc0(sizeof(CharDriverState));
|
1763 |
s = g_malloc0(sizeof(WinCharState));
|
1764 |
chr->opaque = s; |
1765 |
chr->chr_write = win_chr_write; |
1766 |
chr->chr_close = win_chr_close; |
1767 |
|
1768 |
if (win_chr_pipe_init(chr, filename) < 0) { |
1769 |
g_free(s); |
1770 |
g_free(chr); |
1771 |
return NULL; |
1772 |
} |
1773 |
qemu_chr_generic_open(chr); |
1774 |
return chr;
|
1775 |
} |
1776 |
|
1777 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
1778 |
{ |
1779 |
CharDriverState *chr; |
1780 |
WinCharState *s; |
1781 |
|
1782 |
chr = g_malloc0(sizeof(CharDriverState));
|
1783 |
s = g_malloc0(sizeof(WinCharState));
|
1784 |
s->hcom = fd_out; |
1785 |
chr->opaque = s; |
1786 |
chr->chr_write = win_chr_write; |
1787 |
qemu_chr_generic_open(chr); |
1788 |
return chr;
|
1789 |
} |
1790 |
|
1791 |
static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
|
1792 |
{ |
1793 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
1794 |
} |
1795 |
|
1796 |
static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
|
1797 |
{ |
1798 |
const char *file_out = qemu_opt_get(opts, "path"); |
1799 |
HANDLE fd_out; |
1800 |
|
1801 |
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
1802 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
1803 |
if (fd_out == INVALID_HANDLE_VALUE) {
|
1804 |
return NULL; |
1805 |
} |
1806 |
|
1807 |
return qemu_chr_open_win_file(fd_out);
|
1808 |
} |
1809 |
|
1810 |
static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len) |
1811 |
{ |
1812 |
HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE); |
1813 |
DWORD dwSize; |
1814 |
int len1;
|
1815 |
|
1816 |
len1 = len; |
1817 |
|
1818 |
while (len1 > 0) { |
1819 |
if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) { |
1820 |
break;
|
1821 |
} |
1822 |
buf += dwSize; |
1823 |
len1 -= dwSize; |
1824 |
} |
1825 |
|
1826 |
return len - len1;
|
1827 |
} |
1828 |
|
1829 |
static void win_stdio_wait_func(void *opaque) |
1830 |
{ |
1831 |
CharDriverState *chr = opaque; |
1832 |
WinStdioCharState *stdio = chr->opaque; |
1833 |
INPUT_RECORD buf[4];
|
1834 |
int ret;
|
1835 |
DWORD dwSize; |
1836 |
int i;
|
1837 |
|
1838 |
ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf), |
1839 |
&dwSize); |
1840 |
|
1841 |
if (!ret) {
|
1842 |
/* Avoid error storm */
|
1843 |
qemu_del_wait_object(stdio->hStdIn, NULL, NULL); |
1844 |
return;
|
1845 |
} |
1846 |
|
1847 |
for (i = 0; i < dwSize; i++) { |
1848 |
KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent; |
1849 |
|
1850 |
if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
|
1851 |
int j;
|
1852 |
if (kev->uChar.AsciiChar != 0) { |
1853 |
for (j = 0; j < kev->wRepeatCount; j++) { |
1854 |
if (qemu_chr_be_can_write(chr)) {
|
1855 |
uint8_t c = kev->uChar.AsciiChar; |
1856 |
qemu_chr_be_write(chr, &c, 1);
|
1857 |
} |
1858 |
} |
1859 |
} |
1860 |
} |
1861 |
} |
1862 |
} |
1863 |
|
1864 |
static DWORD WINAPI win_stdio_thread(LPVOID param)
|
1865 |
{ |
1866 |
CharDriverState *chr = param; |
1867 |
WinStdioCharState *stdio = chr->opaque; |
1868 |
int ret;
|
1869 |
DWORD dwSize; |
1870 |
|
1871 |
while (1) { |
1872 |
|
1873 |
/* Wait for one byte */
|
1874 |
ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL); |
1875 |
|
1876 |
/* Exit in case of error, continue if nothing read */
|
1877 |
if (!ret) {
|
1878 |
break;
|
1879 |
} |
1880 |
if (!dwSize) {
|
1881 |
continue;
|
1882 |
} |
1883 |
|
1884 |
/* Some terminal emulator returns \r\n for Enter, just pass \n */
|
1885 |
if (stdio->win_stdio_buf == '\r') { |
1886 |
continue;
|
1887 |
} |
1888 |
|
1889 |
/* Signal the main thread and wait until the byte was eaten */
|
1890 |
if (!SetEvent(stdio->hInputReadyEvent)) {
|
1891 |
break;
|
1892 |
} |
1893 |
if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
|
1894 |
!= WAIT_OBJECT_0) { |
1895 |
break;
|
1896 |
} |
1897 |
} |
1898 |
|
1899 |
qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL); |
1900 |
return 0; |
1901 |
} |
1902 |
|
1903 |
static void win_stdio_thread_wait_func(void *opaque) |
1904 |
{ |
1905 |
CharDriverState *chr = opaque; |
1906 |
WinStdioCharState *stdio = chr->opaque; |
1907 |
|
1908 |
if (qemu_chr_be_can_write(chr)) {
|
1909 |
qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
|
1910 |
} |
1911 |
|
1912 |
SetEvent(stdio->hInputDoneEvent); |
1913 |
} |
1914 |
|
1915 |
static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo) |
1916 |
{ |
1917 |
WinStdioCharState *stdio = chr->opaque; |
1918 |
DWORD dwMode = 0;
|
1919 |
|
1920 |
GetConsoleMode(stdio->hStdIn, &dwMode); |
1921 |
|
1922 |
if (echo) {
|
1923 |
SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT); |
1924 |
} else {
|
1925 |
SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT); |
1926 |
} |
1927 |
} |
1928 |
|
1929 |
static void win_stdio_close(CharDriverState *chr) |
1930 |
{ |
1931 |
WinStdioCharState *stdio = chr->opaque; |
1932 |
|
1933 |
if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
|
1934 |
CloseHandle(stdio->hInputReadyEvent); |
1935 |
} |
1936 |
if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
|
1937 |
CloseHandle(stdio->hInputDoneEvent); |
1938 |
} |
1939 |
if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
|
1940 |
TerminateThread(stdio->hInputThread, 0);
|
1941 |
} |
1942 |
|
1943 |
g_free(chr->opaque); |
1944 |
g_free(chr); |
1945 |
stdio_nb_clients--; |
1946 |
} |
1947 |
|
1948 |
static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
|
1949 |
{ |
1950 |
CharDriverState *chr; |
1951 |
WinStdioCharState *stdio; |
1952 |
DWORD dwMode; |
1953 |
int is_console = 0; |
1954 |
|
1955 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS
|
1956 |
|| ((display_type != DT_NOGRAPHIC) && (stdio_nb_clients != 0))) {
|
1957 |
return NULL; |
1958 |
} |
1959 |
|
1960 |
chr = g_malloc0(sizeof(CharDriverState));
|
1961 |
stdio = g_malloc0(sizeof(WinStdioCharState));
|
1962 |
|
1963 |
stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE); |
1964 |
if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
|
1965 |
fprintf(stderr, "cannot open stdio: invalid handle\n");
|
1966 |
exit(1);
|
1967 |
} |
1968 |
|
1969 |
is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
|
1970 |
|
1971 |
chr->opaque = stdio; |
1972 |
chr->chr_write = win_stdio_write; |
1973 |
chr->chr_close = win_stdio_close; |
1974 |
|
1975 |
if (stdio_nb_clients == 0) { |
1976 |
if (is_console) {
|
1977 |
if (qemu_add_wait_object(stdio->hStdIn,
|
1978 |
win_stdio_wait_func, chr)) { |
1979 |
fprintf(stderr, "qemu_add_wait_object: failed\n");
|
1980 |
} |
1981 |
} else {
|
1982 |
DWORD dwId; |
1983 |
|
1984 |
stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
1985 |
stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
1986 |
stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread, |
1987 |
chr, 0, &dwId);
|
1988 |
|
1989 |
if (stdio->hInputThread == INVALID_HANDLE_VALUE
|
1990 |
|| stdio->hInputReadyEvent == INVALID_HANDLE_VALUE |
1991 |
|| stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) { |
1992 |
fprintf(stderr, "cannot create stdio thread or event\n");
|
1993 |
exit(1);
|
1994 |
} |
1995 |
if (qemu_add_wait_object(stdio->hInputReadyEvent,
|
1996 |
win_stdio_thread_wait_func, chr)) { |
1997 |
fprintf(stderr, "qemu_add_wait_object: failed\n");
|
1998 |
} |
1999 |
} |
2000 |
} |
2001 |
|
2002 |
dwMode |= ENABLE_LINE_INPUT; |
2003 |
|
2004 |
stdio_clients[stdio_nb_clients++] = chr; |
2005 |
if (stdio_nb_clients == 1 && is_console) { |
2006 |
/* set the terminal in raw mode */
|
2007 |
/* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
|
2008 |
dwMode |= ENABLE_PROCESSED_INPUT; |
2009 |
} |
2010 |
|
2011 |
SetConsoleMode(stdio->hStdIn, dwMode); |
2012 |
|
2013 |
chr->chr_set_echo = qemu_chr_set_echo_win_stdio; |
2014 |
qemu_chr_fe_set_echo(chr, false);
|
2015 |
|
2016 |
return chr;
|
2017 |
} |
2018 |
#endif /* !_WIN32 */ |
2019 |
|
2020 |
/***********************************************************/
|
2021 |
/* UDP Net console */
|
2022 |
|
2023 |
typedef struct { |
2024 |
int fd;
|
2025 |
uint8_t buf[READ_BUF_LEN]; |
2026 |
int bufcnt;
|
2027 |
int bufptr;
|
2028 |
int max_size;
|
2029 |
} NetCharDriver; |
2030 |
|
2031 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
2032 |
{ |
2033 |
NetCharDriver *s = chr->opaque; |
2034 |
|
2035 |
return send(s->fd, (const void *)buf, len, 0); |
2036 |
} |
2037 |
|
2038 |
static int udp_chr_read_poll(void *opaque) |
2039 |
{ |
2040 |
CharDriverState *chr = opaque; |
2041 |
NetCharDriver *s = chr->opaque; |
2042 |
|
2043 |
s->max_size = qemu_chr_be_can_write(chr); |
2044 |
|
2045 |
/* If there were any stray characters in the queue process them
|
2046 |
* first
|
2047 |
*/
|
2048 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
2049 |
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
2050 |
s->bufptr++; |
2051 |
s->max_size = qemu_chr_be_can_write(chr); |
2052 |
} |
2053 |
return s->max_size;
|
2054 |
} |
2055 |
|
2056 |
static void udp_chr_read(void *opaque) |
2057 |
{ |
2058 |
CharDriverState *chr = opaque; |
2059 |
NetCharDriver *s = chr->opaque; |
2060 |
|
2061 |
if (s->max_size == 0) |
2062 |
return;
|
2063 |
s->bufcnt = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0); |
2064 |
s->bufptr = s->bufcnt; |
2065 |
if (s->bufcnt <= 0) |
2066 |
return;
|
2067 |
|
2068 |
s->bufptr = 0;
|
2069 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
2070 |
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
2071 |
s->bufptr++; |
2072 |
s->max_size = qemu_chr_be_can_write(chr); |
2073 |
} |
2074 |
} |
2075 |
|
2076 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
2077 |
{ |
2078 |
NetCharDriver *s = chr->opaque; |
2079 |
|
2080 |
if (s->fd >= 0) { |
2081 |
qemu_set_fd_handler2(s->fd, udp_chr_read_poll, |
2082 |
udp_chr_read, NULL, chr);
|
2083 |
} |
2084 |
} |
2085 |
|
2086 |
static void udp_chr_close(CharDriverState *chr) |
2087 |
{ |
2088 |
NetCharDriver *s = chr->opaque; |
2089 |
if (s->fd >= 0) { |
2090 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
2091 |
closesocket(s->fd); |
2092 |
} |
2093 |
g_free(s); |
2094 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
2095 |
} |
2096 |
|
2097 |
static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
|
2098 |
{ |
2099 |
CharDriverState *chr = NULL;
|
2100 |
NetCharDriver *s = NULL;
|
2101 |
Error *local_err = NULL;
|
2102 |
int fd = -1; |
2103 |
|
2104 |
chr = g_malloc0(sizeof(CharDriverState));
|
2105 |
s = g_malloc0(sizeof(NetCharDriver));
|
2106 |
|
2107 |
fd = inet_dgram_opts(opts, &local_err); |
2108 |
if (fd < 0) { |
2109 |
goto return_err;
|
2110 |
} |
2111 |
|
2112 |
s->fd = fd; |
2113 |
s->bufcnt = 0;
|
2114 |
s->bufptr = 0;
|
2115 |
chr->opaque = s; |
2116 |
chr->chr_write = udp_chr_write; |
2117 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
2118 |
chr->chr_close = udp_chr_close; |
2119 |
return chr;
|
2120 |
|
2121 |
return_err:
|
2122 |
if (local_err) {
|
2123 |
qerror_report_err(local_err); |
2124 |
error_free(local_err); |
2125 |
} |
2126 |
g_free(chr); |
2127 |
g_free(s); |
2128 |
if (fd >= 0) { |
2129 |
closesocket(fd); |
2130 |
} |
2131 |
return NULL; |
2132 |
} |
2133 |
|
2134 |
/***********************************************************/
|
2135 |
/* TCP Net console */
|
2136 |
|
2137 |
typedef struct { |
2138 |
int fd, listen_fd;
|
2139 |
int connected;
|
2140 |
int max_size;
|
2141 |
int do_telnetopt;
|
2142 |
int do_nodelay;
|
2143 |
int is_unix;
|
2144 |
int msgfd;
|
2145 |
} TCPCharDriver; |
2146 |
|
2147 |
static void tcp_chr_accept(void *opaque); |
2148 |
|
2149 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
2150 |
{ |
2151 |
TCPCharDriver *s = chr->opaque; |
2152 |
if (s->connected) {
|
2153 |
return send_all(s->fd, buf, len);
|
2154 |
} else {
|
2155 |
/* XXX: indicate an error ? */
|
2156 |
return len;
|
2157 |
} |
2158 |
} |
2159 |
|
2160 |
static int tcp_chr_read_poll(void *opaque) |
2161 |
{ |
2162 |
CharDriverState *chr = opaque; |
2163 |
TCPCharDriver *s = chr->opaque; |
2164 |
if (!s->connected)
|
2165 |
return 0; |
2166 |
s->max_size = qemu_chr_be_can_write(chr); |
2167 |
return s->max_size;
|
2168 |
} |
2169 |
|
2170 |
#define IAC 255 |
2171 |
#define IAC_BREAK 243 |
2172 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
2173 |
TCPCharDriver *s, |
2174 |
uint8_t *buf, int *size)
|
2175 |
{ |
2176 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
2177 |
* char mode with no echo. All IAC options will be removed from
|
2178 |
* the buf and the do_telnetopt variable will be used to track the
|
2179 |
* state of the width of the IAC information.
|
2180 |
*
|
2181 |
* IAC commands come in sets of 3 bytes with the exception of the
|
2182 |
* "IAC BREAK" command and the double IAC.
|
2183 |
*/
|
2184 |
|
2185 |
int i;
|
2186 |
int j = 0; |
2187 |
|
2188 |
for (i = 0; i < *size; i++) { |
2189 |
if (s->do_telnetopt > 1) { |
2190 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
2191 |
/* Double IAC means send an IAC */
|
2192 |
if (j != i)
|
2193 |
buf[j] = buf[i]; |
2194 |
j++; |
2195 |
s->do_telnetopt = 1;
|
2196 |
} else {
|
2197 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
2198 |
/* Handle IAC break commands by sending a serial break */
|
2199 |
qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
2200 |
s->do_telnetopt++; |
2201 |
} |
2202 |
s->do_telnetopt++; |
2203 |
} |
2204 |
if (s->do_telnetopt >= 4) { |
2205 |
s->do_telnetopt = 1;
|
2206 |
} |
2207 |
} else {
|
2208 |
if ((unsigned char)buf[i] == IAC) { |
2209 |
s->do_telnetopt = 2;
|
2210 |
} else {
|
2211 |
if (j != i)
|
2212 |
buf[j] = buf[i]; |
2213 |
j++; |
2214 |
} |
2215 |
} |
2216 |
} |
2217 |
*size = j; |
2218 |
} |
2219 |
|
2220 |
static int tcp_get_msgfd(CharDriverState *chr) |
2221 |
{ |
2222 |
TCPCharDriver *s = chr->opaque; |
2223 |
int fd = s->msgfd;
|
2224 |
s->msgfd = -1;
|
2225 |
return fd;
|
2226 |
} |
2227 |
|
2228 |
#ifndef _WIN32
|
2229 |
static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg) |
2230 |
{ |
2231 |
TCPCharDriver *s = chr->opaque; |
2232 |
struct cmsghdr *cmsg;
|
2233 |
|
2234 |
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
|
2235 |
int fd;
|
2236 |
|
2237 |
if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) || |
2238 |
cmsg->cmsg_level != SOL_SOCKET || |
2239 |
cmsg->cmsg_type != SCM_RIGHTS) |
2240 |
continue;
|
2241 |
|
2242 |
fd = *((int *)CMSG_DATA(cmsg));
|
2243 |
if (fd < 0) |
2244 |
continue;
|
2245 |
|
2246 |
#ifndef MSG_CMSG_CLOEXEC
|
2247 |
qemu_set_cloexec(fd); |
2248 |
#endif
|
2249 |
if (s->msgfd != -1) |
2250 |
close(s->msgfd); |
2251 |
s->msgfd = fd; |
2252 |
} |
2253 |
} |
2254 |
|
2255 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
2256 |
{ |
2257 |
TCPCharDriver *s = chr->opaque; |
2258 |
struct msghdr msg = { NULL, }; |
2259 |
struct iovec iov[1]; |
2260 |
union {
|
2261 |
struct cmsghdr cmsg;
|
2262 |
char control[CMSG_SPACE(sizeof(int))]; |
2263 |
} msg_control; |
2264 |
int flags = 0; |
2265 |
ssize_t ret; |
2266 |
|
2267 |
iov[0].iov_base = buf;
|
2268 |
iov[0].iov_len = len;
|
2269 |
|
2270 |
msg.msg_iov = iov; |
2271 |
msg.msg_iovlen = 1;
|
2272 |
msg.msg_control = &msg_control; |
2273 |
msg.msg_controllen = sizeof(msg_control);
|
2274 |
|
2275 |
#ifdef MSG_CMSG_CLOEXEC
|
2276 |
flags |= MSG_CMSG_CLOEXEC; |
2277 |
#endif
|
2278 |
ret = recvmsg(s->fd, &msg, flags); |
2279 |
if (ret > 0 && s->is_unix) { |
2280 |
unix_process_msgfd(chr, &msg); |
2281 |
} |
2282 |
|
2283 |
return ret;
|
2284 |
} |
2285 |
#else
|
2286 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
2287 |
{ |
2288 |
TCPCharDriver *s = chr->opaque; |
2289 |
return qemu_recv(s->fd, buf, len, 0); |
2290 |
} |
2291 |
#endif
|
2292 |
|
2293 |
static void tcp_chr_read(void *opaque) |
2294 |
{ |
2295 |
CharDriverState *chr = opaque; |
2296 |
TCPCharDriver *s = chr->opaque; |
2297 |
uint8_t buf[READ_BUF_LEN]; |
2298 |
int len, size;
|
2299 |
|
2300 |
if (!s->connected || s->max_size <= 0) |
2301 |
return;
|
2302 |
len = sizeof(buf);
|
2303 |
if (len > s->max_size)
|
2304 |
len = s->max_size; |
2305 |
size = tcp_chr_recv(chr, (void *)buf, len);
|
2306 |
if (size == 0) { |
2307 |
/* connection closed */
|
2308 |
s->connected = 0;
|
2309 |
if (s->listen_fd >= 0) { |
2310 |
qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr); |
2311 |
} |
2312 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
2313 |
closesocket(s->fd); |
2314 |
s->fd = -1;
|
2315 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
2316 |
} else if (size > 0) { |
2317 |
if (s->do_telnetopt)
|
2318 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
2319 |
if (size > 0) |
2320 |
qemu_chr_be_write(chr, buf, size); |
2321 |
} |
2322 |
} |
2323 |
|
2324 |
#ifndef _WIN32
|
2325 |
CharDriverState *qemu_chr_open_eventfd(int eventfd)
|
2326 |
{ |
2327 |
return qemu_chr_open_fd(eventfd, eventfd);
|
2328 |
} |
2329 |
#endif
|
2330 |
|
2331 |
static void tcp_chr_connect(void *opaque) |
2332 |
{ |
2333 |
CharDriverState *chr = opaque; |
2334 |
TCPCharDriver *s = chr->opaque; |
2335 |
|
2336 |
s->connected = 1;
|
2337 |
if (s->fd >= 0) { |
2338 |
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, |
2339 |
tcp_chr_read, NULL, chr);
|
2340 |
} |
2341 |
qemu_chr_generic_open(chr); |
2342 |
} |
2343 |
|
2344 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
2345 |
static void tcp_chr_telnet_init(int fd) |
2346 |
{ |
2347 |
char buf[3]; |
2348 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
2349 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
2350 |
send(fd, (char *)buf, 3, 0); |
2351 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
2352 |
send(fd, (char *)buf, 3, 0); |
2353 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
2354 |
send(fd, (char *)buf, 3, 0); |
2355 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
2356 |
send(fd, (char *)buf, 3, 0); |
2357 |
} |
2358 |
|
2359 |
static void socket_set_nodelay(int fd) |
2360 |
{ |
2361 |
int val = 1; |
2362 |
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
2363 |
} |
2364 |
|
2365 |
static int tcp_chr_add_client(CharDriverState *chr, int fd) |
2366 |
{ |
2367 |
TCPCharDriver *s = chr->opaque; |
2368 |
if (s->fd != -1) |
2369 |
return -1; |
2370 |
|
2371 |
socket_set_nonblock(fd); |
2372 |
if (s->do_nodelay)
|
2373 |
socket_set_nodelay(fd); |
2374 |
s->fd = fd; |
2375 |
qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL); |
2376 |
tcp_chr_connect(chr); |
2377 |
|
2378 |
return 0; |
2379 |
} |
2380 |
|
2381 |
static void tcp_chr_accept(void *opaque) |
2382 |
{ |
2383 |
CharDriverState *chr = opaque; |
2384 |
TCPCharDriver *s = chr->opaque; |
2385 |
struct sockaddr_in saddr;
|
2386 |
#ifndef _WIN32
|
2387 |
struct sockaddr_un uaddr;
|
2388 |
#endif
|
2389 |
struct sockaddr *addr;
|
2390 |
socklen_t len; |
2391 |
int fd;
|
2392 |
|
2393 |
for(;;) {
|
2394 |
#ifndef _WIN32
|
2395 |
if (s->is_unix) {
|
2396 |
len = sizeof(uaddr);
|
2397 |
addr = (struct sockaddr *)&uaddr;
|
2398 |
} else
|
2399 |
#endif
|
2400 |
{ |
2401 |
len = sizeof(saddr);
|
2402 |
addr = (struct sockaddr *)&saddr;
|
2403 |
} |
2404 |
fd = qemu_accept(s->listen_fd, addr, &len); |
2405 |
if (fd < 0 && errno != EINTR) { |
2406 |
return;
|
2407 |
} else if (fd >= 0) { |
2408 |
if (s->do_telnetopt)
|
2409 |
tcp_chr_telnet_init(fd); |
2410 |
break;
|
2411 |
} |
2412 |
} |
2413 |
if (tcp_chr_add_client(chr, fd) < 0) |
2414 |
close(fd); |
2415 |
} |
2416 |
|
2417 |
static void tcp_chr_close(CharDriverState *chr) |
2418 |
{ |
2419 |
TCPCharDriver *s = chr->opaque; |
2420 |
if (s->fd >= 0) { |
2421 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
2422 |
closesocket(s->fd); |
2423 |
} |
2424 |
if (s->listen_fd >= 0) { |
2425 |
qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL); |
2426 |
closesocket(s->listen_fd); |
2427 |
} |
2428 |
g_free(s); |
2429 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
2430 |
} |
2431 |
|
2432 |
static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
|
2433 |
{ |
2434 |
CharDriverState *chr = NULL;
|
2435 |
TCPCharDriver *s = NULL;
|
2436 |
Error *local_err = NULL;
|
2437 |
int fd = -1; |
2438 |
int is_listen;
|
2439 |
int is_waitconnect;
|
2440 |
int do_nodelay;
|
2441 |
int is_unix;
|
2442 |
int is_telnet;
|
2443 |
|
2444 |
is_listen = qemu_opt_get_bool(opts, "server", 0); |
2445 |
is_waitconnect = qemu_opt_get_bool(opts, "wait", 1); |
2446 |
is_telnet = qemu_opt_get_bool(opts, "telnet", 0); |
2447 |
do_nodelay = !qemu_opt_get_bool(opts, "delay", 1); |
2448 |
is_unix = qemu_opt_get(opts, "path") != NULL; |
2449 |
if (!is_listen)
|
2450 |
is_waitconnect = 0;
|
2451 |
|
2452 |
chr = g_malloc0(sizeof(CharDriverState));
|
2453 |
s = g_malloc0(sizeof(TCPCharDriver));
|
2454 |
|
2455 |
if (is_unix) {
|
2456 |
if (is_listen) {
|
2457 |
fd = unix_listen_opts(opts, &local_err); |
2458 |
} else {
|
2459 |
fd = unix_connect_opts(opts, &local_err, NULL, NULL); |
2460 |
} |
2461 |
} else {
|
2462 |
if (is_listen) {
|
2463 |
fd = inet_listen_opts(opts, 0, &local_err);
|
2464 |
} else {
|
2465 |
fd = inet_connect_opts(opts, &local_err, NULL, NULL); |
2466 |
} |
2467 |
} |
2468 |
if (fd < 0) { |
2469 |
goto fail;
|
2470 |
} |
2471 |
|
2472 |
if (!is_waitconnect)
|
2473 |
socket_set_nonblock(fd); |
2474 |
|
2475 |
s->connected = 0;
|
2476 |
s->fd = -1;
|
2477 |
s->listen_fd = -1;
|
2478 |
s->msgfd = -1;
|
2479 |
s->is_unix = is_unix; |
2480 |
s->do_nodelay = do_nodelay && !is_unix; |
2481 |
|
2482 |
chr->opaque = s; |
2483 |
chr->chr_write = tcp_chr_write; |
2484 |
chr->chr_close = tcp_chr_close; |
2485 |
chr->get_msgfd = tcp_get_msgfd; |
2486 |
chr->chr_add_client = tcp_chr_add_client; |
2487 |
|
2488 |
if (is_listen) {
|
2489 |
s->listen_fd = fd; |
2490 |
qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr); |
2491 |
if (is_telnet)
|
2492 |
s->do_telnetopt = 1;
|
2493 |
|
2494 |
} else {
|
2495 |
s->connected = 1;
|
2496 |
s->fd = fd; |
2497 |
socket_set_nodelay(fd); |
2498 |
tcp_chr_connect(chr); |
2499 |
} |
2500 |
|
2501 |
/* for "info chardev" monitor command */
|
2502 |
chr->filename = g_malloc(256);
|
2503 |
if (is_unix) {
|
2504 |
snprintf(chr->filename, 256, "unix:%s%s", |
2505 |
qemu_opt_get(opts, "path"),
|
2506 |
qemu_opt_get_bool(opts, "server", 0) ? ",server" : ""); |
2507 |
} else if (is_telnet) { |
2508 |
snprintf(chr->filename, 256, "telnet:%s:%s%s", |
2509 |
qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"), |
2510 |
qemu_opt_get_bool(opts, "server", 0) ? ",server" : ""); |
2511 |
} else {
|
2512 |
snprintf(chr->filename, 256, "tcp:%s:%s%s", |
2513 |
qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"), |
2514 |
qemu_opt_get_bool(opts, "server", 0) ? ",server" : ""); |
2515 |
} |
2516 |
|
2517 |
if (is_listen && is_waitconnect) {
|
2518 |
printf("QEMU waiting for connection on: %s\n",
|
2519 |
chr->filename); |
2520 |
tcp_chr_accept(chr); |
2521 |
socket_set_nonblock(s->listen_fd); |
2522 |
} |
2523 |
return chr;
|
2524 |
|
2525 |
fail:
|
2526 |
if (local_err) {
|
2527 |
qerror_report_err(local_err); |
2528 |
error_free(local_err); |
2529 |
} |
2530 |
if (fd >= 0) { |
2531 |
closesocket(fd); |
2532 |
} |
2533 |
g_free(s); |
2534 |
g_free(chr); |
2535 |
return NULL; |
2536 |
} |
2537 |
|
2538 |
/***********************************************************/
|
2539 |
/* Memory chardev */
|
2540 |
typedef struct { |
2541 |
size_t outbuf_size; |
2542 |
size_t outbuf_capacity; |
2543 |
uint8_t *outbuf; |
2544 |
} MemoryDriver; |
2545 |
|
2546 |
static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
2547 |
{ |
2548 |
MemoryDriver *d = chr->opaque; |
2549 |
|
2550 |
/* TODO: the QString implementation has the same code, we should
|
2551 |
* introduce a generic way to do this in cutils.c */
|
2552 |
if (d->outbuf_capacity < d->outbuf_size + len) {
|
2553 |
/* grow outbuf */
|
2554 |
d->outbuf_capacity += len; |
2555 |
d->outbuf_capacity *= 2;
|
2556 |
d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity); |
2557 |
} |
2558 |
|
2559 |
memcpy(d->outbuf + d->outbuf_size, buf, len); |
2560 |
d->outbuf_size += len; |
2561 |
|
2562 |
return len;
|
2563 |
} |
2564 |
|
2565 |
void qemu_chr_init_mem(CharDriverState *chr)
|
2566 |
{ |
2567 |
MemoryDriver *d; |
2568 |
|
2569 |
d = g_malloc(sizeof(*d));
|
2570 |
d->outbuf_size = 0;
|
2571 |
d->outbuf_capacity = 4096;
|
2572 |
d->outbuf = g_malloc0(d->outbuf_capacity); |
2573 |
|
2574 |
memset(chr, 0, sizeof(*chr)); |
2575 |
chr->opaque = d; |
2576 |
chr->chr_write = mem_chr_write; |
2577 |
} |
2578 |
|
2579 |
QString *qemu_chr_mem_to_qs(CharDriverState *chr) |
2580 |
{ |
2581 |
MemoryDriver *d = chr->opaque; |
2582 |
return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1); |
2583 |
} |
2584 |
|
2585 |
/* NOTE: this driver can not be closed with qemu_chr_delete()! */
|
2586 |
void qemu_chr_close_mem(CharDriverState *chr)
|
2587 |
{ |
2588 |
MemoryDriver *d = chr->opaque; |
2589 |
|
2590 |
g_free(d->outbuf); |
2591 |
g_free(chr->opaque); |
2592 |
chr->opaque = NULL;
|
2593 |
chr->chr_write = NULL;
|
2594 |
} |
2595 |
|
2596 |
size_t qemu_chr_mem_osize(const CharDriverState *chr)
|
2597 |
{ |
2598 |
const MemoryDriver *d = chr->opaque;
|
2599 |
return d->outbuf_size;
|
2600 |
} |
2601 |
|
2602 |
QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename) |
2603 |
{ |
2604 |
char host[65], port[33], width[8], height[8]; |
2605 |
int pos;
|
2606 |
const char *p; |
2607 |
QemuOpts *opts; |
2608 |
Error *local_err = NULL;
|
2609 |
|
2610 |
opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err); |
2611 |
if (error_is_set(&local_err)) {
|
2612 |
qerror_report_err(local_err); |
2613 |
error_free(local_err); |
2614 |
return NULL; |
2615 |
} |
2616 |
|
2617 |
if (strstart(filename, "mon:", &p)) { |
2618 |
filename = p; |
2619 |
qemu_opt_set(opts, "mux", "on"); |
2620 |
} |
2621 |
|
2622 |
if (strcmp(filename, "null") == 0 || |
2623 |
strcmp(filename, "pty") == 0 || |
2624 |
strcmp(filename, "msmouse") == 0 || |
2625 |
strcmp(filename, "braille") == 0 || |
2626 |
strcmp(filename, "stdio") == 0) { |
2627 |
qemu_opt_set(opts, "backend", filename);
|
2628 |
return opts;
|
2629 |
} |
2630 |
if (strstart(filename, "vc", &p)) { |
2631 |
qemu_opt_set(opts, "backend", "vc"); |
2632 |
if (*p == ':') { |
2633 |
if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) { |
2634 |
/* pixels */
|
2635 |
qemu_opt_set(opts, "width", width);
|
2636 |
qemu_opt_set(opts, "height", height);
|
2637 |
} else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) { |
2638 |
/* chars */
|
2639 |
qemu_opt_set(opts, "cols", width);
|
2640 |
qemu_opt_set(opts, "rows", height);
|
2641 |
} else {
|
2642 |
goto fail;
|
2643 |
} |
2644 |
} |
2645 |
return opts;
|
2646 |
} |
2647 |
if (strcmp(filename, "con:") == 0) { |
2648 |
qemu_opt_set(opts, "backend", "console"); |
2649 |
return opts;
|
2650 |
} |
2651 |
if (strstart(filename, "COM", NULL)) { |
2652 |
qemu_opt_set(opts, "backend", "serial"); |
2653 |
qemu_opt_set(opts, "path", filename);
|
2654 |
return opts;
|
2655 |
} |
2656 |
if (strstart(filename, "file:", &p)) { |
2657 |
qemu_opt_set(opts, "backend", "file"); |
2658 |
qemu_opt_set(opts, "path", p);
|
2659 |
return opts;
|
2660 |
} |
2661 |
if (strstart(filename, "pipe:", &p)) { |
2662 |
qemu_opt_set(opts, "backend", "pipe"); |
2663 |
qemu_opt_set(opts, "path", p);
|
2664 |
return opts;
|
2665 |
} |
2666 |
if (strstart(filename, "tcp:", &p) || |
2667 |
strstart(filename, "telnet:", &p)) {
|
2668 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
2669 |
host[0] = 0; |
2670 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) |
2671 |
goto fail;
|
2672 |
} |
2673 |
qemu_opt_set(opts, "backend", "socket"); |
2674 |
qemu_opt_set(opts, "host", host);
|
2675 |
qemu_opt_set(opts, "port", port);
|
2676 |
if (p[pos] == ',') { |
2677 |
if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0) |
2678 |
goto fail;
|
2679 |
} |
2680 |
if (strstart(filename, "telnet:", &p)) |
2681 |
qemu_opt_set(opts, "telnet", "on"); |
2682 |
return opts;
|
2683 |
} |
2684 |
if (strstart(filename, "udp:", &p)) { |
2685 |
qemu_opt_set(opts, "backend", "udp"); |
2686 |
if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) { |
2687 |
host[0] = 0; |
2688 |
if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) { |
2689 |
goto fail;
|
2690 |
} |
2691 |
} |
2692 |
qemu_opt_set(opts, "host", host);
|
2693 |
qemu_opt_set(opts, "port", port);
|
2694 |
if (p[pos] == '@') { |
2695 |
p += pos + 1;
|
2696 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
2697 |
host[0] = 0; |
2698 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) { |
2699 |
goto fail;
|
2700 |
} |
2701 |
} |
2702 |
qemu_opt_set(opts, "localaddr", host);
|
2703 |
qemu_opt_set(opts, "localport", port);
|
2704 |
} |
2705 |
return opts;
|
2706 |
} |
2707 |
if (strstart(filename, "unix:", &p)) { |
2708 |
qemu_opt_set(opts, "backend", "socket"); |
2709 |
if (qemu_opts_do_parse(opts, p, "path") != 0) |
2710 |
goto fail;
|
2711 |
return opts;
|
2712 |
} |
2713 |
if (strstart(filename, "/dev/parport", NULL) || |
2714 |
strstart(filename, "/dev/ppi", NULL)) { |
2715 |
qemu_opt_set(opts, "backend", "parport"); |
2716 |
qemu_opt_set(opts, "path", filename);
|
2717 |
return opts;
|
2718 |
} |
2719 |
if (strstart(filename, "/dev/", NULL)) { |
2720 |
qemu_opt_set(opts, "backend", "tty"); |
2721 |
qemu_opt_set(opts, "path", filename);
|
2722 |
return opts;
|
2723 |
} |
2724 |
|
2725 |
fail:
|
2726 |
qemu_opts_del(opts); |
2727 |
return NULL; |
2728 |
} |
2729 |
|
2730 |
static const struct { |
2731 |
const char *name; |
2732 |
CharDriverState *(*open)(QemuOpts *opts); |
2733 |
} backend_table[] = { |
2734 |
{ .name = "null", .open = qemu_chr_open_null },
|
2735 |
{ .name = "socket", .open = qemu_chr_open_socket },
|
2736 |
{ .name = "udp", .open = qemu_chr_open_udp },
|
2737 |
{ .name = "msmouse", .open = qemu_chr_open_msmouse },
|
2738 |
{ .name = "vc", .open = text_console_init },
|
2739 |
#ifdef _WIN32
|
2740 |
{ .name = "file", .open = qemu_chr_open_win_file_out },
|
2741 |
{ .name = "pipe", .open = qemu_chr_open_win_pipe },
|
2742 |
{ .name = "console", .open = qemu_chr_open_win_con },
|
2743 |
{ .name = "serial", .open = qemu_chr_open_win },
|
2744 |
{ .name = "stdio", .open = qemu_chr_open_win_stdio },
|
2745 |
#else
|
2746 |
{ .name = "file", .open = qemu_chr_open_file_out },
|
2747 |
{ .name = "pipe", .open = qemu_chr_open_pipe },
|
2748 |
{ .name = "pty", .open = qemu_chr_open_pty },
|
2749 |
{ .name = "stdio", .open = qemu_chr_open_stdio },
|
2750 |
#endif
|
2751 |
#ifdef CONFIG_BRLAPI
|
2752 |
{ .name = "braille", .open = chr_baum_init },
|
2753 |
#endif
|
2754 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
2755 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ |
2756 |
|| defined(__FreeBSD_kernel__) |
2757 |
{ .name = "tty", .open = qemu_chr_open_tty },
|
2758 |
#endif
|
2759 |
#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
|
2760 |
|| defined(__FreeBSD_kernel__) |
2761 |
{ .name = "parport", .open = qemu_chr_open_pp },
|
2762 |
#endif
|
2763 |
#ifdef CONFIG_SPICE
|
2764 |
{ .name = "spicevmc", .open = qemu_chr_open_spice },
|
2765 |
#if SPICE_SERVER_VERSION >= 0x000c02 |
2766 |
{ .name = "spiceport", .open = qemu_chr_open_spice_port },
|
2767 |
#endif
|
2768 |
#endif
|
2769 |
}; |
2770 |
|
2771 |
CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts, |
2772 |
void (*init)(struct CharDriverState *s)) |
2773 |
{ |
2774 |
CharDriverState *chr; |
2775 |
int i;
|
2776 |
|
2777 |
if (qemu_opts_id(opts) == NULL) { |
2778 |
fprintf(stderr, "chardev: no id specified\n");
|
2779 |
return NULL; |
2780 |
} |
2781 |
|
2782 |
if (qemu_opt_get(opts, "backend") == NULL) { |
2783 |
fprintf(stderr, "chardev: \"%s\" missing backend\n",
|
2784 |
qemu_opts_id(opts)); |
2785 |
return NULL; |
2786 |
} |
2787 |
for (i = 0; i < ARRAY_SIZE(backend_table); i++) { |
2788 |
if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0) |
2789 |
break;
|
2790 |
} |
2791 |
if (i == ARRAY_SIZE(backend_table)) {
|
2792 |
fprintf(stderr, "chardev: backend \"%s\" not found\n",
|
2793 |
qemu_opt_get(opts, "backend"));
|
2794 |
return NULL; |
2795 |
} |
2796 |
|
2797 |
chr = backend_table[i].open(opts); |
2798 |
if (!chr) {
|
2799 |
fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
|
2800 |
qemu_opt_get(opts, "backend"));
|
2801 |
return NULL; |
2802 |
} |
2803 |
|
2804 |
if (!chr->filename)
|
2805 |
chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
|
2806 |
chr->init = init; |
2807 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
2808 |
|
2809 |
if (qemu_opt_get_bool(opts, "mux", 0)) { |
2810 |
CharDriverState *base = chr; |
2811 |
int len = strlen(qemu_opts_id(opts)) + 6; |
2812 |
base->label = g_malloc(len); |
2813 |
snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
|
2814 |
chr = qemu_chr_open_mux(base); |
2815 |
chr->filename = base->filename; |
2816 |
chr->avail_connections = MAX_MUX; |
2817 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
2818 |
} else {
|
2819 |
chr->avail_connections = 1;
|
2820 |
} |
2821 |
chr->label = g_strdup(qemu_opts_id(opts)); |
2822 |
return chr;
|
2823 |
} |
2824 |
|
2825 |
CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) |
2826 |
{ |
2827 |
const char *p; |
2828 |
CharDriverState *chr; |
2829 |
QemuOpts *opts; |
2830 |
|
2831 |
if (strstart(filename, "chardev:", &p)) { |
2832 |
return qemu_chr_find(p);
|
2833 |
} |
2834 |
|
2835 |
opts = qemu_chr_parse_compat(label, filename); |
2836 |
if (!opts)
|
2837 |
return NULL; |
2838 |
|
2839 |
chr = qemu_chr_new_from_opts(opts, init); |
2840 |
if (chr && qemu_opt_get_bool(opts, "mux", 0)) { |
2841 |
monitor_init(chr, MONITOR_USE_READLINE); |
2842 |
} |
2843 |
qemu_opts_del(opts); |
2844 |
return chr;
|
2845 |
} |
2846 |
|
2847 |
void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo) |
2848 |
{ |
2849 |
if (chr->chr_set_echo) {
|
2850 |
chr->chr_set_echo(chr, echo); |
2851 |
} |
2852 |
} |
2853 |
|
2854 |
void qemu_chr_fe_open(struct CharDriverState *chr) |
2855 |
{ |
2856 |
if (chr->chr_guest_open) {
|
2857 |
chr->chr_guest_open(chr); |
2858 |
} |
2859 |
} |
2860 |
|
2861 |
void qemu_chr_fe_close(struct CharDriverState *chr) |
2862 |
{ |
2863 |
if (chr->chr_guest_close) {
|
2864 |
chr->chr_guest_close(chr); |
2865 |
} |
2866 |
} |
2867 |
|
2868 |
void qemu_chr_delete(CharDriverState *chr)
|
2869 |
{ |
2870 |
QTAILQ_REMOVE(&chardevs, chr, next); |
2871 |
if (chr->chr_close)
|
2872 |
chr->chr_close(chr); |
2873 |
g_free(chr->filename); |
2874 |
g_free(chr->label); |
2875 |
g_free(chr); |
2876 |
} |
2877 |
|
2878 |
ChardevInfoList *qmp_query_chardev(Error **errp) |
2879 |
{ |
2880 |
ChardevInfoList *chr_list = NULL;
|
2881 |
CharDriverState *chr; |
2882 |
|
2883 |
QTAILQ_FOREACH(chr, &chardevs, next) { |
2884 |
ChardevInfoList *info = g_malloc0(sizeof(*info));
|
2885 |
info->value = g_malloc0(sizeof(*info->value));
|
2886 |
info->value->label = g_strdup(chr->label); |
2887 |
info->value->filename = g_strdup(chr->filename); |
2888 |
|
2889 |
info->next = chr_list; |
2890 |
chr_list = info; |
2891 |
} |
2892 |
|
2893 |
return chr_list;
|
2894 |
} |
2895 |
|
2896 |
CharDriverState *qemu_chr_find(const char *name) |
2897 |
{ |
2898 |
CharDriverState *chr; |
2899 |
|
2900 |
QTAILQ_FOREACH(chr, &chardevs, next) { |
2901 |
if (strcmp(chr->label, name) != 0) |
2902 |
continue;
|
2903 |
return chr;
|
2904 |
} |
2905 |
return NULL; |
2906 |
} |
2907 |
|
2908 |
/* Get a character (serial) device interface. */
|
2909 |
CharDriverState *qemu_char_get_next_serial(void)
|
2910 |
{ |
2911 |
static int next_serial; |
2912 |
|
2913 |
/* FIXME: This function needs to go away: use chardev properties! */
|
2914 |
return serial_hds[next_serial++];
|
2915 |
} |
2916 |
|