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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 "monitor/monitor.h" |
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#include "ui/console.h" |
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#include "sysemu/sysemu.h" |
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#include "qemu/timer.h" |
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#include "char/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/sockets.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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} |
297 |
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static const char * const mux_help[] = { |
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"% h print this help\n\r",
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"% x exit emulator\n\r",
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"% s save disk data back to file (if -snapshot)\n\r",
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"% t toggle console timestamps\n\r"
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"% b send break (magic sysrq)\n\r",
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"% c switch between console and monitor\n\r",
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"% % sends %\n\r",
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NULL
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}; |
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int term_escape_char = 0x01; /* ctrl-a is used for escape */ |
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static void mux_print_help(CharDriverState *chr) |
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{ |
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int i, j;
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char ebuf[15] = "Escape-Char"; |
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char cbuf[50] = "\n\r"; |
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if (term_escape_char > 0 && term_escape_char < 26) { |
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snprintf(cbuf, sizeof(cbuf), "\n\r"); |
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snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a'); |
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} else {
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snprintf(cbuf, sizeof(cbuf),
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"\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
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term_escape_char); |
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} |
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chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf)); |
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for (i = 0; mux_help[i] != NULL; i++) { |
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for (j=0; mux_help[i][j] != '\0'; j++) { |
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if (mux_help[i][j] == '%') |
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chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf)); |
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else
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chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
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} |
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} |
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} |
334 |
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static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event) |
336 |
{ |
337 |
if (d->chr_event[mux_nr])
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d->chr_event[mux_nr](d->ext_opaque[mux_nr], event); |
339 |
} |
340 |
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static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
342 |
{ |
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if (d->term_got_escape) {
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d->term_got_escape = 0;
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if (ch == term_escape_char)
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goto send_char;
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switch(ch) {
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case '?': |
349 |
case 'h': |
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mux_print_help(chr); |
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break;
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case 'x': |
353 |
{ |
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const char *term = "QEMU: Terminated\n\r"; |
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chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
356 |
exit(0);
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break;
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} |
359 |
case 's': |
360 |
bdrv_commit_all(); |
361 |
break;
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362 |
case 'b': |
363 |
qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
364 |
break;
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365 |
case 'c': |
366 |
/* Switch to the next registered device */
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mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
368 |
d->focus++; |
369 |
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); |
372 |
break;
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373 |
case 't': |
374 |
d->timestamps = !d->timestamps; |
375 |
d->timestamps_start = -1;
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d->linestart = 0;
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377 |
break;
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378 |
} |
379 |
} else if (ch == term_escape_char) { |
380 |
d->term_got_escape = 1;
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381 |
} else {
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382 |
send_char:
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383 |
return 1; |
384 |
} |
385 |
return 0; |
386 |
} |
387 |
|
388 |
static void mux_chr_accept_input(CharDriverState *chr) |
389 |
{ |
390 |
MuxDriver *d = chr->opaque; |
391 |
int m = d->focus;
|
392 |
|
393 |
while (d->prod[m] != d->cons[m] &&
|
394 |
d->chr_can_read[m] && |
395 |
d->chr_can_read[m](d->ext_opaque[m])) { |
396 |
d->chr_read[m](d->ext_opaque[m], |
397 |
&d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
|
398 |
} |
399 |
} |
400 |
|
401 |
static int mux_chr_can_read(void *opaque) |
402 |
{ |
403 |
CharDriverState *chr = opaque; |
404 |
MuxDriver *d = chr->opaque; |
405 |
int m = d->focus;
|
406 |
|
407 |
if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
|
408 |
return 1; |
409 |
if (d->chr_can_read[m])
|
410 |
return d->chr_can_read[m](d->ext_opaque[m]);
|
411 |
return 0; |
412 |
} |
413 |
|
414 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
415 |
{ |
416 |
CharDriverState *chr = opaque; |
417 |
MuxDriver *d = chr->opaque; |
418 |
int m = d->focus;
|
419 |
int i;
|
420 |
|
421 |
mux_chr_accept_input (opaque); |
422 |
|
423 |
for(i = 0; i < size; i++) |
424 |
if (mux_proc_byte(chr, d, buf[i])) {
|
425 |
if (d->prod[m] == d->cons[m] &&
|
426 |
d->chr_can_read[m] && |
427 |
d->chr_can_read[m](d->ext_opaque[m])) |
428 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
429 |
else
|
430 |
d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i]; |
431 |
} |
432 |
} |
433 |
|
434 |
static void mux_chr_event(void *opaque, int event) |
435 |
{ |
436 |
CharDriverState *chr = opaque; |
437 |
MuxDriver *d = chr->opaque; |
438 |
int i;
|
439 |
|
440 |
/* Send the event to all registered listeners */
|
441 |
for (i = 0; i < d->mux_cnt; i++) |
442 |
mux_chr_send_event(d, i, event); |
443 |
} |
444 |
|
445 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
446 |
{ |
447 |
MuxDriver *d = chr->opaque; |
448 |
|
449 |
if (d->mux_cnt >= MAX_MUX) {
|
450 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
451 |
return;
|
452 |
} |
453 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
454 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
455 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
456 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
457 |
/* Fix up the real driver with mux routines */
|
458 |
if (d->mux_cnt == 0) { |
459 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
460 |
mux_chr_event, chr); |
461 |
} |
462 |
if (d->focus != -1) { |
463 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
464 |
} |
465 |
d->focus = d->mux_cnt; |
466 |
d->mux_cnt++; |
467 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
468 |
} |
469 |
|
470 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
471 |
{ |
472 |
CharDriverState *chr; |
473 |
MuxDriver *d; |
474 |
|
475 |
chr = g_malloc0(sizeof(CharDriverState));
|
476 |
d = g_malloc0(sizeof(MuxDriver));
|
477 |
|
478 |
chr->opaque = d; |
479 |
d->drv = drv; |
480 |
d->focus = -1;
|
481 |
chr->chr_write = mux_chr_write; |
482 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
483 |
chr->chr_accept_input = mux_chr_accept_input; |
484 |
/* Frontend guest-open / -close notification is not support with muxes */
|
485 |
chr->chr_guest_open = NULL;
|
486 |
chr->chr_guest_close = NULL;
|
487 |
|
488 |
/* Muxes are always open on creation */
|
489 |
qemu_chr_generic_open(chr); |
490 |
|
491 |
return chr;
|
492 |
} |
493 |
|
494 |
|
495 |
#ifdef _WIN32
|
496 |
int send_all(int fd, const void *buf, int len1) |
497 |
{ |
498 |
int ret, len;
|
499 |
|
500 |
len = len1; |
501 |
while (len > 0) { |
502 |
ret = send(fd, buf, len, 0);
|
503 |
if (ret < 0) { |
504 |
errno = WSAGetLastError(); |
505 |
if (errno != WSAEWOULDBLOCK) {
|
506 |
return -1; |
507 |
} |
508 |
} else if (ret == 0) { |
509 |
break;
|
510 |
} else {
|
511 |
buf += ret; |
512 |
len -= ret; |
513 |
} |
514 |
} |
515 |
return len1 - len;
|
516 |
} |
517 |
|
518 |
#else
|
519 |
|
520 |
int send_all(int fd, const void *_buf, int len1) |
521 |
{ |
522 |
int ret, len;
|
523 |
const uint8_t *buf = _buf;
|
524 |
|
525 |
len = len1; |
526 |
while (len > 0) { |
527 |
ret = write(fd, buf, len); |
528 |
if (ret < 0) { |
529 |
if (errno != EINTR && errno != EAGAIN)
|
530 |
return -1; |
531 |
} else if (ret == 0) { |
532 |
break;
|
533 |
} else {
|
534 |
buf += ret; |
535 |
len -= ret; |
536 |
} |
537 |
} |
538 |
return len1 - len;
|
539 |
} |
540 |
#endif /* !_WIN32 */ |
541 |
|
542 |
#define STDIO_MAX_CLIENTS 1 |
543 |
static int stdio_nb_clients; |
544 |
|
545 |
#ifndef _WIN32
|
546 |
|
547 |
typedef struct { |
548 |
int fd_in, fd_out;
|
549 |
int max_size;
|
550 |
} FDCharDriver; |
551 |
|
552 |
|
553 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
554 |
{ |
555 |
FDCharDriver *s = chr->opaque; |
556 |
return send_all(s->fd_out, buf, len);
|
557 |
} |
558 |
|
559 |
static int fd_chr_read_poll(void *opaque) |
560 |
{ |
561 |
CharDriverState *chr = opaque; |
562 |
FDCharDriver *s = chr->opaque; |
563 |
|
564 |
s->max_size = qemu_chr_be_can_write(chr); |
565 |
return s->max_size;
|
566 |
} |
567 |
|
568 |
static void fd_chr_read(void *opaque) |
569 |
{ |
570 |
CharDriverState *chr = opaque; |
571 |
FDCharDriver *s = chr->opaque; |
572 |
int size, len;
|
573 |
uint8_t buf[READ_BUF_LEN]; |
574 |
|
575 |
len = sizeof(buf);
|
576 |
if (len > s->max_size)
|
577 |
len = s->max_size; |
578 |
if (len == 0) |
579 |
return;
|
580 |
size = read(s->fd_in, buf, len); |
581 |
if (size == 0) { |
582 |
/* FD has been closed. Remove it from the active list. */
|
583 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
584 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
585 |
return;
|
586 |
} |
587 |
if (size > 0) { |
588 |
qemu_chr_be_write(chr, buf, size); |
589 |
} |
590 |
} |
591 |
|
592 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
593 |
{ |
594 |
FDCharDriver *s = chr->opaque; |
595 |
|
596 |
if (s->fd_in >= 0) { |
597 |
if (display_type == DT_NOGRAPHIC && s->fd_in == 0) { |
598 |
} else {
|
599 |
qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, |
600 |
fd_chr_read, NULL, chr);
|
601 |
} |
602 |
} |
603 |
} |
604 |
|
605 |
static void fd_chr_close(struct CharDriverState *chr) |
606 |
{ |
607 |
FDCharDriver *s = chr->opaque; |
608 |
|
609 |
if (s->fd_in >= 0) { |
610 |
if (display_type == DT_NOGRAPHIC && s->fd_in == 0) { |
611 |
} else {
|
612 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
613 |
} |
614 |
} |
615 |
|
616 |
g_free(s); |
617 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
618 |
} |
619 |
|
620 |
/* open a character device to a unix fd */
|
621 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
622 |
{ |
623 |
CharDriverState *chr; |
624 |
FDCharDriver *s; |
625 |
|
626 |
chr = g_malloc0(sizeof(CharDriverState));
|
627 |
s = g_malloc0(sizeof(FDCharDriver));
|
628 |
s->fd_in = fd_in; |
629 |
s->fd_out = fd_out; |
630 |
chr->opaque = s; |
631 |
chr->chr_write = fd_chr_write; |
632 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
633 |
chr->chr_close = fd_chr_close; |
634 |
|
635 |
qemu_chr_generic_open(chr); |
636 |
|
637 |
return chr;
|
638 |
} |
639 |
|
640 |
static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
|
641 |
{ |
642 |
int fd_out;
|
643 |
|
644 |
TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
|
645 |
O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
646 |
if (fd_out < 0) { |
647 |
return NULL; |
648 |
} |
649 |
return qemu_chr_open_fd(-1, fd_out); |
650 |
} |
651 |
|
652 |
static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
|
653 |
{ |
654 |
int fd_in, fd_out;
|
655 |
char filename_in[256], filename_out[256]; |
656 |
const char *filename = qemu_opt_get(opts, "path"); |
657 |
|
658 |
if (filename == NULL) { |
659 |
fprintf(stderr, "chardev: pipe: no filename given\n");
|
660 |
return NULL; |
661 |
} |
662 |
|
663 |
snprintf(filename_in, 256, "%s.in", filename); |
664 |
snprintf(filename_out, 256, "%s.out", filename); |
665 |
TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY)); |
666 |
TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY)); |
667 |
if (fd_in < 0 || fd_out < 0) { |
668 |
if (fd_in >= 0) |
669 |
close(fd_in); |
670 |
if (fd_out >= 0) |
671 |
close(fd_out); |
672 |
TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY)); |
673 |
if (fd_in < 0) { |
674 |
return NULL; |
675 |
} |
676 |
} |
677 |
return qemu_chr_open_fd(fd_in, fd_out);
|
678 |
} |
679 |
|
680 |
|
681 |
/* for STDIO, we handle the case where several clients use it
|
682 |
(nographic mode) */
|
683 |
|
684 |
#define TERM_FIFO_MAX_SIZE 1 |
685 |
|
686 |
static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
|
687 |
static int term_fifo_size; |
688 |
|
689 |
static int stdio_read_poll(void *opaque) |
690 |
{ |
691 |
CharDriverState *chr = opaque; |
692 |
|
693 |
/* try to flush the queue if needed */
|
694 |
if (term_fifo_size != 0 && qemu_chr_be_can_write(chr) > 0) { |
695 |
qemu_chr_be_write(chr, term_fifo, 1);
|
696 |
term_fifo_size = 0;
|
697 |
} |
698 |
/* see if we can absorb more chars */
|
699 |
if (term_fifo_size == 0) |
700 |
return 1; |
701 |
else
|
702 |
return 0; |
703 |
} |
704 |
|
705 |
static void stdio_read(void *opaque) |
706 |
{ |
707 |
int size;
|
708 |
uint8_t buf[1];
|
709 |
CharDriverState *chr = opaque; |
710 |
|
711 |
size = read(0, buf, 1); |
712 |
if (size == 0) { |
713 |
/* stdin has been closed. Remove it from the active list. */
|
714 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
715 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
716 |
return;
|
717 |
} |
718 |
if (size > 0) { |
719 |
if (qemu_chr_be_can_write(chr) > 0) { |
720 |
qemu_chr_be_write(chr, buf, 1);
|
721 |
} else if (term_fifo_size == 0) { |
722 |
term_fifo[term_fifo_size++] = buf[0];
|
723 |
} |
724 |
} |
725 |
} |
726 |
|
727 |
/* init terminal so that we can grab keys */
|
728 |
static struct termios oldtty; |
729 |
static int old_fd0_flags; |
730 |
static bool stdio_allow_signal; |
731 |
|
732 |
static void term_exit(void) |
733 |
{ |
734 |
tcsetattr (0, TCSANOW, &oldtty);
|
735 |
fcntl(0, F_SETFL, old_fd0_flags);
|
736 |
} |
737 |
|
738 |
static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo) |
739 |
{ |
740 |
struct termios tty;
|
741 |
|
742 |
tty = oldtty; |
743 |
if (!echo) {
|
744 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
745 |
|INLCR|IGNCR|ICRNL|IXON); |
746 |
tty.c_oflag |= OPOST; |
747 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
748 |
tty.c_cflag &= ~(CSIZE|PARENB); |
749 |
tty.c_cflag |= CS8; |
750 |
tty.c_cc[VMIN] = 1;
|
751 |
tty.c_cc[VTIME] = 0;
|
752 |
} |
753 |
/* if graphical mode, we allow Ctrl-C handling */
|
754 |
if (!stdio_allow_signal)
|
755 |
tty.c_lflag &= ~ISIG; |
756 |
|
757 |
tcsetattr (0, TCSANOW, &tty);
|
758 |
} |
759 |
|
760 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
761 |
{ |
762 |
term_exit(); |
763 |
stdio_nb_clients--; |
764 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
765 |
fd_chr_close(chr); |
766 |
} |
767 |
|
768 |
static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
|
769 |
{ |
770 |
CharDriverState *chr; |
771 |
|
772 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
|
773 |
return NULL; |
774 |
} |
775 |
if (is_daemonized()) {
|
776 |
error_report("cannot use stdio with -daemonize");
|
777 |
return NULL; |
778 |
} |
779 |
if (stdio_nb_clients == 0) { |
780 |
old_fd0_flags = fcntl(0, F_GETFL);
|
781 |
tcgetattr (0, &oldtty);
|
782 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
783 |
atexit(term_exit); |
784 |
} |
785 |
|
786 |
chr = qemu_chr_open_fd(0, 1); |
787 |
chr->chr_close = qemu_chr_close_stdio; |
788 |
chr->chr_set_echo = qemu_chr_set_echo_stdio; |
789 |
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); |
790 |
stdio_nb_clients++; |
791 |
stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
|
792 |
display_type != DT_NOGRAPHIC); |
793 |
qemu_chr_fe_set_echo(chr, false);
|
794 |
|
795 |
return chr;
|
796 |
} |
797 |
|
798 |
#ifdef __sun__
|
799 |
/* Once Solaris has openpty(), this is going to be removed. */
|
800 |
static int openpty(int *amaster, int *aslave, char *name, |
801 |
struct termios *termp, struct winsize *winp) |
802 |
{ |
803 |
const char *slave; |
804 |
int mfd = -1, sfd = -1; |
805 |
|
806 |
*amaster = *aslave = -1;
|
807 |
|
808 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
809 |
if (mfd < 0) |
810 |
goto err;
|
811 |
|
812 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
813 |
goto err;
|
814 |
|
815 |
if ((slave = ptsname(mfd)) == NULL) |
816 |
goto err;
|
817 |
|
818 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
819 |
goto err;
|
820 |
|
821 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
822 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
823 |
goto err;
|
824 |
|
825 |
if (amaster)
|
826 |
*amaster = mfd; |
827 |
if (aslave)
|
828 |
*aslave = sfd; |
829 |
if (winp)
|
830 |
ioctl(sfd, TIOCSWINSZ, winp); |
831 |
|
832 |
return 0; |
833 |
|
834 |
err:
|
835 |
if (sfd != -1) |
836 |
close(sfd); |
837 |
close(mfd); |
838 |
return -1; |
839 |
} |
840 |
|
841 |
static void cfmakeraw (struct termios *termios_p) |
842 |
{ |
843 |
termios_p->c_iflag &= |
844 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
845 |
termios_p->c_oflag &= ~OPOST; |
846 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
847 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
848 |
termios_p->c_cflag |= CS8; |
849 |
|
850 |
termios_p->c_cc[VMIN] = 0;
|
851 |
termios_p->c_cc[VTIME] = 0;
|
852 |
} |
853 |
#endif
|
854 |
|
855 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
856 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ |
857 |
|| defined(__GLIBC__) |
858 |
|
859 |
#define HAVE_CHARDEV_TTY 1 |
860 |
|
861 |
typedef struct { |
862 |
int fd;
|
863 |
int connected;
|
864 |
int polling;
|
865 |
int read_bytes;
|
866 |
QEMUTimer *timer; |
867 |
} PtyCharDriver; |
868 |
|
869 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
870 |
static void pty_chr_state(CharDriverState *chr, int connected); |
871 |
|
872 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
873 |
{ |
874 |
PtyCharDriver *s = chr->opaque; |
875 |
|
876 |
if (!s->connected) {
|
877 |
/* guest sends data, check for (re-)connect */
|
878 |
pty_chr_update_read_handler(chr); |
879 |
return 0; |
880 |
} |
881 |
return send_all(s->fd, buf, len);
|
882 |
} |
883 |
|
884 |
static int pty_chr_read_poll(void *opaque) |
885 |
{ |
886 |
CharDriverState *chr = opaque; |
887 |
PtyCharDriver *s = chr->opaque; |
888 |
|
889 |
s->read_bytes = qemu_chr_be_can_write(chr); |
890 |
return s->read_bytes;
|
891 |
} |
892 |
|
893 |
static void pty_chr_read(void *opaque) |
894 |
{ |
895 |
CharDriverState *chr = opaque; |
896 |
PtyCharDriver *s = chr->opaque; |
897 |
int size, len;
|
898 |
uint8_t buf[READ_BUF_LEN]; |
899 |
|
900 |
len = sizeof(buf);
|
901 |
if (len > s->read_bytes)
|
902 |
len = s->read_bytes; |
903 |
if (len == 0) |
904 |
return;
|
905 |
size = read(s->fd, buf, len); |
906 |
if ((size == -1 && errno == EIO) || |
907 |
(size == 0)) {
|
908 |
pty_chr_state(chr, 0);
|
909 |
return;
|
910 |
} |
911 |
if (size > 0) { |
912 |
pty_chr_state(chr, 1);
|
913 |
qemu_chr_be_write(chr, buf, size); |
914 |
} |
915 |
} |
916 |
|
917 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
918 |
{ |
919 |
PtyCharDriver *s = chr->opaque; |
920 |
|
921 |
qemu_set_fd_handler2(s->fd, pty_chr_read_poll, |
922 |
pty_chr_read, NULL, chr);
|
923 |
s->polling = 1;
|
924 |
/*
|
925 |
* Short timeout here: just need wait long enougth that qemu makes
|
926 |
* it through the poll loop once. When reconnected we want a
|
927 |
* short timeout so we notice it almost instantly. Otherwise
|
928 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
929 |
* timeout to the normal (much longer) poll interval before the
|
930 |
* timer triggers.
|
931 |
*/
|
932 |
qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
|
933 |
} |
934 |
|
935 |
static void pty_chr_state(CharDriverState *chr, int connected) |
936 |
{ |
937 |
PtyCharDriver *s = chr->opaque; |
938 |
|
939 |
if (!connected) {
|
940 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
941 |
s->connected = 0;
|
942 |
s->polling = 0;
|
943 |
/* (re-)connect poll interval for idle guests: once per second.
|
944 |
* We check more frequently in case the guests sends data to
|
945 |
* the virtual device linked to our pty. */
|
946 |
qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
|
947 |
} else {
|
948 |
if (!s->connected)
|
949 |
qemu_chr_generic_open(chr); |
950 |
s->connected = 1;
|
951 |
} |
952 |
} |
953 |
|
954 |
static void pty_chr_timer(void *opaque) |
955 |
{ |
956 |
struct CharDriverState *chr = opaque;
|
957 |
PtyCharDriver *s = chr->opaque; |
958 |
|
959 |
if (s->connected)
|
960 |
return;
|
961 |
if (s->polling) {
|
962 |
/* If we arrive here without polling being cleared due
|
963 |
* read returning -EIO, then we are (re-)connected */
|
964 |
pty_chr_state(chr, 1);
|
965 |
return;
|
966 |
} |
967 |
|
968 |
/* Next poll ... */
|
969 |
pty_chr_update_read_handler(chr); |
970 |
} |
971 |
|
972 |
static void pty_chr_close(struct CharDriverState *chr) |
973 |
{ |
974 |
PtyCharDriver *s = chr->opaque; |
975 |
|
976 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
977 |
close(s->fd); |
978 |
qemu_del_timer(s->timer); |
979 |
qemu_free_timer(s->timer); |
980 |
g_free(s); |
981 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
982 |
} |
983 |
|
984 |
static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
|
985 |
{ |
986 |
CharDriverState *chr; |
987 |
PtyCharDriver *s; |
988 |
struct termios tty;
|
989 |
const char *label; |
990 |
int master_fd, slave_fd, len;
|
991 |
#if defined(__OpenBSD__) || defined(__DragonFly__)
|
992 |
char pty_name[PATH_MAX];
|
993 |
#define q_ptsname(x) pty_name
|
994 |
#else
|
995 |
char *pty_name = NULL; |
996 |
#define q_ptsname(x) ptsname(x)
|
997 |
#endif
|
998 |
|
999 |
if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
1000 |
return NULL; |
1001 |
} |
1002 |
|
1003 |
/* Set raw attributes on the pty. */
|
1004 |
tcgetattr(slave_fd, &tty); |
1005 |
cfmakeraw(&tty); |
1006 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
1007 |
close(slave_fd); |
1008 |
|
1009 |
chr = g_malloc0(sizeof(CharDriverState));
|
1010 |
|
1011 |
len = strlen(q_ptsname(master_fd)) + 5;
|
1012 |
chr->filename = g_malloc(len); |
1013 |
snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
|
1014 |
qemu_opt_set(opts, "path", q_ptsname(master_fd));
|
1015 |
|
1016 |
label = qemu_opts_id(opts); |
1017 |
fprintf(stderr, "char device redirected to %s%s%s%s\n",
|
1018 |
q_ptsname(master_fd), |
1019 |
label ? " (label " : "", |
1020 |
label ? label : "",
|
1021 |
label ? ")" : ""); |
1022 |
|
1023 |
s = g_malloc0(sizeof(PtyCharDriver));
|
1024 |
chr->opaque = s; |
1025 |
chr->chr_write = pty_chr_write; |
1026 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
1027 |
chr->chr_close = pty_chr_close; |
1028 |
|
1029 |
s->fd = master_fd; |
1030 |
s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr); |
1031 |
|
1032 |
return chr;
|
1033 |
} |
1034 |
|
1035 |
static void tty_serial_init(int fd, int speed, |
1036 |
int parity, int data_bits, int stop_bits) |
1037 |
{ |
1038 |
struct termios tty;
|
1039 |
speed_t spd; |
1040 |
|
1041 |
#if 0
|
1042 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
1043 |
speed, parity, data_bits, stop_bits);
|
1044 |
#endif
|
1045 |
tcgetattr (fd, &tty); |
1046 |
|
1047 |
#define check_speed(val) if (speed <= val) { spd = B##val; break; } |
1048 |
speed = speed * 10 / 11; |
1049 |
do {
|
1050 |
check_speed(50);
|
1051 |
check_speed(75);
|
1052 |
check_speed(110);
|
1053 |
check_speed(134);
|
1054 |
check_speed(150);
|
1055 |
check_speed(200);
|
1056 |
check_speed(300);
|
1057 |
check_speed(600);
|
1058 |
check_speed(1200);
|
1059 |
check_speed(1800);
|
1060 |
check_speed(2400);
|
1061 |
check_speed(4800);
|
1062 |
check_speed(9600);
|
1063 |
check_speed(19200);
|
1064 |
check_speed(38400);
|
1065 |
/* Non-Posix values follow. They may be unsupported on some systems. */
|
1066 |
check_speed(57600);
|
1067 |
check_speed(115200);
|
1068 |
#ifdef B230400
|
1069 |
check_speed(230400);
|
1070 |
#endif
|
1071 |
#ifdef B460800
|
1072 |
check_speed(460800);
|
1073 |
#endif
|
1074 |
#ifdef B500000
|
1075 |
check_speed(500000);
|
1076 |
#endif
|
1077 |
#ifdef B576000
|
1078 |
check_speed(576000);
|
1079 |
#endif
|
1080 |
#ifdef B921600
|
1081 |
check_speed(921600);
|
1082 |
#endif
|
1083 |
#ifdef B1000000
|
1084 |
check_speed(1000000);
|
1085 |
#endif
|
1086 |
#ifdef B1152000
|
1087 |
check_speed(1152000);
|
1088 |
#endif
|
1089 |
#ifdef B1500000
|
1090 |
check_speed(1500000);
|
1091 |
#endif
|
1092 |
#ifdef B2000000
|
1093 |
check_speed(2000000);
|
1094 |
#endif
|
1095 |
#ifdef B2500000
|
1096 |
check_speed(2500000);
|
1097 |
#endif
|
1098 |
#ifdef B3000000
|
1099 |
check_speed(3000000);
|
1100 |
#endif
|
1101 |
#ifdef B3500000
|
1102 |
check_speed(3500000);
|
1103 |
#endif
|
1104 |
#ifdef B4000000
|
1105 |
check_speed(4000000);
|
1106 |
#endif
|
1107 |
spd = B115200; |
1108 |
} while (0); |
1109 |
|
1110 |
cfsetispeed(&tty, spd); |
1111 |
cfsetospeed(&tty, spd); |
1112 |
|
1113 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
1114 |
|INLCR|IGNCR|ICRNL|IXON); |
1115 |
tty.c_oflag |= OPOST; |
1116 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
1117 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
1118 |
switch(data_bits) {
|
1119 |
default:
|
1120 |
case 8: |
1121 |
tty.c_cflag |= CS8; |
1122 |
break;
|
1123 |
case 7: |
1124 |
tty.c_cflag |= CS7; |
1125 |
break;
|
1126 |
case 6: |
1127 |
tty.c_cflag |= CS6; |
1128 |
break;
|
1129 |
case 5: |
1130 |
tty.c_cflag |= CS5; |
1131 |
break;
|
1132 |
} |
1133 |
switch(parity) {
|
1134 |
default:
|
1135 |
case 'N': |
1136 |
break;
|
1137 |
case 'E': |
1138 |
tty.c_cflag |= PARENB; |
1139 |
break;
|
1140 |
case 'O': |
1141 |
tty.c_cflag |= PARENB | PARODD; |
1142 |
break;
|
1143 |
} |
1144 |
if (stop_bits == 2) |
1145 |
tty.c_cflag |= CSTOPB; |
1146 |
|
1147 |
tcsetattr (fd, TCSANOW, &tty); |
1148 |
} |
1149 |
|
1150 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
1151 |
{ |
1152 |
FDCharDriver *s = chr->opaque; |
1153 |
|
1154 |
switch(cmd) {
|
1155 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
1156 |
{ |
1157 |
QEMUSerialSetParams *ssp = arg; |
1158 |
tty_serial_init(s->fd_in, ssp->speed, ssp->parity, |
1159 |
ssp->data_bits, ssp->stop_bits); |
1160 |
} |
1161 |
break;
|
1162 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
1163 |
{ |
1164 |
int enable = *(int *)arg; |
1165 |
if (enable)
|
1166 |
tcsendbreak(s->fd_in, 1);
|
1167 |
} |
1168 |
break;
|
1169 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
1170 |
{ |
1171 |
int sarg = 0; |
1172 |
int *targ = (int *)arg; |
1173 |
ioctl(s->fd_in, TIOCMGET, &sarg); |
1174 |
*targ = 0;
|
1175 |
if (sarg & TIOCM_CTS)
|
1176 |
*targ |= CHR_TIOCM_CTS; |
1177 |
if (sarg & TIOCM_CAR)
|
1178 |
*targ |= CHR_TIOCM_CAR; |
1179 |
if (sarg & TIOCM_DSR)
|
1180 |
*targ |= CHR_TIOCM_DSR; |
1181 |
if (sarg & TIOCM_RI)
|
1182 |
*targ |= CHR_TIOCM_RI; |
1183 |
if (sarg & TIOCM_DTR)
|
1184 |
*targ |= CHR_TIOCM_DTR; |
1185 |
if (sarg & TIOCM_RTS)
|
1186 |
*targ |= CHR_TIOCM_RTS; |
1187 |
} |
1188 |
break;
|
1189 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
1190 |
{ |
1191 |
int sarg = *(int *)arg; |
1192 |
int targ = 0; |
1193 |
ioctl(s->fd_in, TIOCMGET, &targ); |
1194 |
targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR |
1195 |
| CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); |
1196 |
if (sarg & CHR_TIOCM_CTS)
|
1197 |
targ |= TIOCM_CTS; |
1198 |
if (sarg & CHR_TIOCM_CAR)
|
1199 |
targ |= TIOCM_CAR; |
1200 |
if (sarg & CHR_TIOCM_DSR)
|
1201 |
targ |= TIOCM_DSR; |
1202 |
if (sarg & CHR_TIOCM_RI)
|
1203 |
targ |= TIOCM_RI; |
1204 |
if (sarg & CHR_TIOCM_DTR)
|
1205 |
targ |= TIOCM_DTR; |
1206 |
if (sarg & CHR_TIOCM_RTS)
|
1207 |
targ |= TIOCM_RTS; |
1208 |
ioctl(s->fd_in, TIOCMSET, &targ); |
1209 |
} |
1210 |
break;
|
1211 |
default:
|
1212 |
return -ENOTSUP;
|
1213 |
} |
1214 |
return 0; |
1215 |
} |
1216 |
|
1217 |
static void qemu_chr_close_tty(CharDriverState *chr) |
1218 |
{ |
1219 |
FDCharDriver *s = chr->opaque; |
1220 |
int fd = -1; |
1221 |
|
1222 |
if (s) {
|
1223 |
fd = s->fd_in; |
1224 |
} |
1225 |
|
1226 |
fd_chr_close(chr); |
1227 |
|
1228 |
if (fd >= 0) { |
1229 |
close(fd); |
1230 |
} |
1231 |
} |
1232 |
|
1233 |
static CharDriverState *qemu_chr_open_tty_fd(int fd) |
1234 |
{ |
1235 |
CharDriverState *chr; |
1236 |
|
1237 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
1238 |
chr = qemu_chr_open_fd(fd, fd); |
1239 |
chr->chr_ioctl = tty_serial_ioctl; |
1240 |
chr->chr_close = qemu_chr_close_tty; |
1241 |
return chr;
|
1242 |
} |
1243 |
|
1244 |
static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
|
1245 |
{ |
1246 |
const char *filename = qemu_opt_get(opts, "path"); |
1247 |
int fd;
|
1248 |
|
1249 |
TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK)); |
1250 |
if (fd < 0) { |
1251 |
return NULL; |
1252 |
} |
1253 |
return qemu_chr_open_tty_fd(fd);
|
1254 |
} |
1255 |
#endif /* __linux__ || __sun__ */ |
1256 |
|
1257 |
#if defined(__linux__)
|
1258 |
|
1259 |
#define HAVE_CHARDEV_PARPORT 1 |
1260 |
|
1261 |
typedef struct { |
1262 |
int fd;
|
1263 |
int mode;
|
1264 |
} ParallelCharDriver; |
1265 |
|
1266 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
1267 |
{ |
1268 |
if (s->mode != mode) {
|
1269 |
int m = mode;
|
1270 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
1271 |
return 0; |
1272 |
s->mode = mode; |
1273 |
} |
1274 |
return 1; |
1275 |
} |
1276 |
|
1277 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1278 |
{ |
1279 |
ParallelCharDriver *drv = chr->opaque; |
1280 |
int fd = drv->fd;
|
1281 |
uint8_t b; |
1282 |
|
1283 |
switch(cmd) {
|
1284 |
case CHR_IOCTL_PP_READ_DATA:
|
1285 |
if (ioctl(fd, PPRDATA, &b) < 0) |
1286 |
return -ENOTSUP;
|
1287 |
*(uint8_t *)arg = b; |
1288 |
break;
|
1289 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1290 |
b = *(uint8_t *)arg; |
1291 |
if (ioctl(fd, PPWDATA, &b) < 0) |
1292 |
return -ENOTSUP;
|
1293 |
break;
|
1294 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1295 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
1296 |
return -ENOTSUP;
|
1297 |
/* Linux gives only the lowest bits, and no way to know data
|
1298 |
direction! For better compatibility set the fixed upper
|
1299 |
bits. */
|
1300 |
*(uint8_t *)arg = b | 0xc0;
|
1301 |
break;
|
1302 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1303 |
b = *(uint8_t *)arg; |
1304 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
1305 |
return -ENOTSUP;
|
1306 |
break;
|
1307 |
case CHR_IOCTL_PP_READ_STATUS:
|
1308 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
1309 |
return -ENOTSUP;
|
1310 |
*(uint8_t *)arg = b; |
1311 |
break;
|
1312 |
case CHR_IOCTL_PP_DATA_DIR:
|
1313 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
1314 |
return -ENOTSUP;
|
1315 |
break;
|
1316 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
1317 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1318 |
struct ParallelIOArg *parg = arg;
|
1319 |
int n = read(fd, parg->buffer, parg->count);
|
1320 |
if (n != parg->count) {
|
1321 |
return -EIO;
|
1322 |
} |
1323 |
} |
1324 |
break;
|
1325 |
case CHR_IOCTL_PP_EPP_READ:
|
1326 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1327 |
struct ParallelIOArg *parg = arg;
|
1328 |
int n = read(fd, parg->buffer, parg->count);
|
1329 |
if (n != parg->count) {
|
1330 |
return -EIO;
|
1331 |
} |
1332 |
} |
1333 |
break;
|
1334 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
1335 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1336 |
struct ParallelIOArg *parg = arg;
|
1337 |
int n = write(fd, parg->buffer, parg->count);
|
1338 |
if (n != parg->count) {
|
1339 |
return -EIO;
|
1340 |
} |
1341 |
} |
1342 |
break;
|
1343 |
case CHR_IOCTL_PP_EPP_WRITE:
|
1344 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1345 |
struct ParallelIOArg *parg = arg;
|
1346 |
int n = write(fd, parg->buffer, parg->count);
|
1347 |
if (n != parg->count) {
|
1348 |
return -EIO;
|
1349 |
} |
1350 |
} |
1351 |
break;
|
1352 |
default:
|
1353 |
return -ENOTSUP;
|
1354 |
} |
1355 |
return 0; |
1356 |
} |
1357 |
|
1358 |
static void pp_close(CharDriverState *chr) |
1359 |
{ |
1360 |
ParallelCharDriver *drv = chr->opaque; |
1361 |
int fd = drv->fd;
|
1362 |
|
1363 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
1364 |
ioctl(fd, PPRELEASE); |
1365 |
close(fd); |
1366 |
g_free(drv); |
1367 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
1368 |
} |
1369 |
|
1370 |
static CharDriverState *qemu_chr_open_pp_fd(int fd) |
1371 |
{ |
1372 |
CharDriverState *chr; |
1373 |
ParallelCharDriver *drv; |
1374 |
|
1375 |
if (ioctl(fd, PPCLAIM) < 0) { |
1376 |
close(fd); |
1377 |
return NULL; |
1378 |
} |
1379 |
|
1380 |
drv = g_malloc0(sizeof(ParallelCharDriver));
|
1381 |
drv->fd = fd; |
1382 |
drv->mode = IEEE1284_MODE_COMPAT; |
1383 |
|
1384 |
chr = g_malloc0(sizeof(CharDriverState));
|
1385 |
chr->chr_write = null_chr_write; |
1386 |
chr->chr_ioctl = pp_ioctl; |
1387 |
chr->chr_close = pp_close; |
1388 |
chr->opaque = drv; |
1389 |
|
1390 |
qemu_chr_generic_open(chr); |
1391 |
|
1392 |
return chr;
|
1393 |
} |
1394 |
#endif /* __linux__ */ |
1395 |
|
1396 |
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
|
1397 |
|
1398 |
#define HAVE_CHARDEV_PARPORT 1 |
1399 |
|
1400 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1401 |
{ |
1402 |
int fd = (int)(intptr_t)chr->opaque; |
1403 |
uint8_t b; |
1404 |
|
1405 |
switch(cmd) {
|
1406 |
case CHR_IOCTL_PP_READ_DATA:
|
1407 |
if (ioctl(fd, PPIGDATA, &b) < 0) |
1408 |
return -ENOTSUP;
|
1409 |
*(uint8_t *)arg = b; |
1410 |
break;
|
1411 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1412 |
b = *(uint8_t *)arg; |
1413 |
if (ioctl(fd, PPISDATA, &b) < 0) |
1414 |
return -ENOTSUP;
|
1415 |
break;
|
1416 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1417 |
if (ioctl(fd, PPIGCTRL, &b) < 0) |
1418 |
return -ENOTSUP;
|
1419 |
*(uint8_t *)arg = b; |
1420 |
break;
|
1421 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1422 |
b = *(uint8_t *)arg; |
1423 |
if (ioctl(fd, PPISCTRL, &b) < 0) |
1424 |
return -ENOTSUP;
|
1425 |
break;
|
1426 |
case CHR_IOCTL_PP_READ_STATUS:
|
1427 |
if (ioctl(fd, PPIGSTATUS, &b) < 0) |
1428 |
return -ENOTSUP;
|
1429 |
*(uint8_t *)arg = b; |
1430 |
break;
|
1431 |
default:
|
1432 |
return -ENOTSUP;
|
1433 |
} |
1434 |
return 0; |
1435 |
} |
1436 |
|
1437 |
static CharDriverState *qemu_chr_open_pp_fd(int fd) |
1438 |
{ |
1439 |
CharDriverState *chr; |
1440 |
|
1441 |
chr = g_malloc0(sizeof(CharDriverState));
|
1442 |
chr->opaque = (void *)(intptr_t)fd;
|
1443 |
chr->chr_write = null_chr_write; |
1444 |
chr->chr_ioctl = pp_ioctl; |
1445 |
return chr;
|
1446 |
} |
1447 |
#endif
|
1448 |
|
1449 |
#else /* _WIN32 */ |
1450 |
|
1451 |
static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];
|
1452 |
|
1453 |
typedef struct { |
1454 |
int max_size;
|
1455 |
HANDLE hcom, hrecv, hsend; |
1456 |
OVERLAPPED orecv, osend; |
1457 |
BOOL fpipe; |
1458 |
DWORD len; |
1459 |
} WinCharState; |
1460 |
|
1461 |
typedef struct { |
1462 |
HANDLE hStdIn; |
1463 |
HANDLE hInputReadyEvent; |
1464 |
HANDLE hInputDoneEvent; |
1465 |
HANDLE hInputThread; |
1466 |
uint8_t win_stdio_buf; |
1467 |
} WinStdioCharState; |
1468 |
|
1469 |
#define NSENDBUF 2048 |
1470 |
#define NRECVBUF 2048 |
1471 |
#define MAXCONNECT 1 |
1472 |
#define NTIMEOUT 5000 |
1473 |
|
1474 |
static int win_chr_poll(void *opaque); |
1475 |
static int win_chr_pipe_poll(void *opaque); |
1476 |
|
1477 |
static void win_chr_close(CharDriverState *chr) |
1478 |
{ |
1479 |
WinCharState *s = chr->opaque; |
1480 |
|
1481 |
if (s->hsend) {
|
1482 |
CloseHandle(s->hsend); |
1483 |
s->hsend = NULL;
|
1484 |
} |
1485 |
if (s->hrecv) {
|
1486 |
CloseHandle(s->hrecv); |
1487 |
s->hrecv = NULL;
|
1488 |
} |
1489 |
if (s->hcom) {
|
1490 |
CloseHandle(s->hcom); |
1491 |
s->hcom = NULL;
|
1492 |
} |
1493 |
if (s->fpipe)
|
1494 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
1495 |
else
|
1496 |
qemu_del_polling_cb(win_chr_poll, chr); |
1497 |
|
1498 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
1499 |
} |
1500 |
|
1501 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
1502 |
{ |
1503 |
WinCharState *s = chr->opaque; |
1504 |
COMMCONFIG comcfg; |
1505 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; |
1506 |
COMSTAT comstat; |
1507 |
DWORD size; |
1508 |
DWORD err; |
1509 |
|
1510 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1511 |
if (!s->hsend) {
|
1512 |
fprintf(stderr, "Failed CreateEvent\n");
|
1513 |
goto fail;
|
1514 |
} |
1515 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1516 |
if (!s->hrecv) {
|
1517 |
fprintf(stderr, "Failed CreateEvent\n");
|
1518 |
goto fail;
|
1519 |
} |
1520 |
|
1521 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
1522 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
1523 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1524 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
1525 |
s->hcom = NULL;
|
1526 |
goto fail;
|
1527 |
} |
1528 |
|
1529 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
1530 |
fprintf(stderr, "Failed SetupComm\n");
|
1531 |
goto fail;
|
1532 |
} |
1533 |
|
1534 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
1535 |
size = sizeof(COMMCONFIG);
|
1536 |
GetDefaultCommConfig(filename, &comcfg, &size); |
1537 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
1538 |
CommConfigDialog(filename, NULL, &comcfg);
|
1539 |
|
1540 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
1541 |
fprintf(stderr, "Failed SetCommState\n");
|
1542 |
goto fail;
|
1543 |
} |
1544 |
|
1545 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
1546 |
fprintf(stderr, "Failed SetCommMask\n");
|
1547 |
goto fail;
|
1548 |
} |
1549 |
|
1550 |
cto.ReadIntervalTimeout = MAXDWORD; |
1551 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
1552 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
1553 |
goto fail;
|
1554 |
} |
1555 |
|
1556 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
1557 |
fprintf(stderr, "Failed ClearCommError\n");
|
1558 |
goto fail;
|
1559 |
} |
1560 |
qemu_add_polling_cb(win_chr_poll, chr); |
1561 |
return 0; |
1562 |
|
1563 |
fail:
|
1564 |
win_chr_close(chr); |
1565 |
return -1; |
1566 |
} |
1567 |
|
1568 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
1569 |
{ |
1570 |
WinCharState *s = chr->opaque; |
1571 |
DWORD len, ret, size, err; |
1572 |
|
1573 |
len = len1; |
1574 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
1575 |
s->osend.hEvent = s->hsend; |
1576 |
while (len > 0) { |
1577 |
if (s->hsend)
|
1578 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
1579 |
else
|
1580 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
1581 |
if (!ret) {
|
1582 |
err = GetLastError(); |
1583 |
if (err == ERROR_IO_PENDING) {
|
1584 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
1585 |
if (ret) {
|
1586 |
buf += size; |
1587 |
len -= size; |
1588 |
} else {
|
1589 |
break;
|
1590 |
} |
1591 |
} else {
|
1592 |
break;
|
1593 |
} |
1594 |
} else {
|
1595 |
buf += size; |
1596 |
len -= size; |
1597 |
} |
1598 |
} |
1599 |
return len1 - len;
|
1600 |
} |
1601 |
|
1602 |
static int win_chr_read_poll(CharDriverState *chr) |
1603 |
{ |
1604 |
WinCharState *s = chr->opaque; |
1605 |
|
1606 |
s->max_size = qemu_chr_be_can_write(chr); |
1607 |
return s->max_size;
|
1608 |
} |
1609 |
|
1610 |
static void win_chr_readfile(CharDriverState *chr) |
1611 |
{ |
1612 |
WinCharState *s = chr->opaque; |
1613 |
int ret, err;
|
1614 |
uint8_t buf[READ_BUF_LEN]; |
1615 |
DWORD size; |
1616 |
|
1617 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
1618 |
s->orecv.hEvent = s->hrecv; |
1619 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
1620 |
if (!ret) {
|
1621 |
err = GetLastError(); |
1622 |
if (err == ERROR_IO_PENDING) {
|
1623 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
1624 |
} |
1625 |
} |
1626 |
|
1627 |
if (size > 0) { |
1628 |
qemu_chr_be_write(chr, buf, size); |
1629 |
} |
1630 |
} |
1631 |
|
1632 |
static void win_chr_read(CharDriverState *chr) |
1633 |
{ |
1634 |
WinCharState *s = chr->opaque; |
1635 |
|
1636 |
if (s->len > s->max_size)
|
1637 |
s->len = s->max_size; |
1638 |
if (s->len == 0) |
1639 |
return;
|
1640 |
|
1641 |
win_chr_readfile(chr); |
1642 |
} |
1643 |
|
1644 |
static int win_chr_poll(void *opaque) |
1645 |
{ |
1646 |
CharDriverState *chr = opaque; |
1647 |
WinCharState *s = chr->opaque; |
1648 |
COMSTAT status; |
1649 |
DWORD comerr; |
1650 |
|
1651 |
ClearCommError(s->hcom, &comerr, &status); |
1652 |
if (status.cbInQue > 0) { |
1653 |
s->len = status.cbInQue; |
1654 |
win_chr_read_poll(chr); |
1655 |
win_chr_read(chr); |
1656 |
return 1; |
1657 |
} |
1658 |
return 0; |
1659 |
} |
1660 |
|
1661 |
static CharDriverState *qemu_chr_open_win_path(const char *filename) |
1662 |
{ |
1663 |
CharDriverState *chr; |
1664 |
WinCharState *s; |
1665 |
|
1666 |
chr = g_malloc0(sizeof(CharDriverState));
|
1667 |
s = g_malloc0(sizeof(WinCharState));
|
1668 |
chr->opaque = s; |
1669 |
chr->chr_write = win_chr_write; |
1670 |
chr->chr_close = win_chr_close; |
1671 |
|
1672 |
if (win_chr_init(chr, filename) < 0) { |
1673 |
g_free(s); |
1674 |
g_free(chr); |
1675 |
return NULL; |
1676 |
} |
1677 |
qemu_chr_generic_open(chr); |
1678 |
return chr;
|
1679 |
} |
1680 |
|
1681 |
static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
|
1682 |
{ |
1683 |
return qemu_chr_open_win_path(qemu_opt_get(opts, "path")); |
1684 |
} |
1685 |
|
1686 |
static int win_chr_pipe_poll(void *opaque) |
1687 |
{ |
1688 |
CharDriverState *chr = opaque; |
1689 |
WinCharState *s = chr->opaque; |
1690 |
DWORD size; |
1691 |
|
1692 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
1693 |
if (size > 0) { |
1694 |
s->len = size; |
1695 |
win_chr_read_poll(chr); |
1696 |
win_chr_read(chr); |
1697 |
return 1; |
1698 |
} |
1699 |
return 0; |
1700 |
} |
1701 |
|
1702 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
1703 |
{ |
1704 |
WinCharState *s = chr->opaque; |
1705 |
OVERLAPPED ov; |
1706 |
int ret;
|
1707 |
DWORD size; |
1708 |
char openname[256]; |
1709 |
|
1710 |
s->fpipe = TRUE; |
1711 |
|
1712 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1713 |
if (!s->hsend) {
|
1714 |
fprintf(stderr, "Failed CreateEvent\n");
|
1715 |
goto fail;
|
1716 |
} |
1717 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1718 |
if (!s->hrecv) {
|
1719 |
fprintf(stderr, "Failed CreateEvent\n");
|
1720 |
goto fail;
|
1721 |
} |
1722 |
|
1723 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
1724 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
1725 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
1726 |
PIPE_WAIT, |
1727 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
1728 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1729 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
1730 |
s->hcom = NULL;
|
1731 |
goto fail;
|
1732 |
} |
1733 |
|
1734 |
ZeroMemory(&ov, sizeof(ov));
|
1735 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
1736 |
ret = ConnectNamedPipe(s->hcom, &ov); |
1737 |
if (ret) {
|
1738 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
1739 |
goto fail;
|
1740 |
} |
1741 |
|
1742 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
1743 |
if (!ret) {
|
1744 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
1745 |
if (ov.hEvent) {
|
1746 |
CloseHandle(ov.hEvent); |
1747 |
ov.hEvent = NULL;
|
1748 |
} |
1749 |
goto fail;
|
1750 |
} |
1751 |
|
1752 |
if (ov.hEvent) {
|
1753 |
CloseHandle(ov.hEvent); |
1754 |
ov.hEvent = NULL;
|
1755 |
} |
1756 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
1757 |
return 0; |
1758 |
|
1759 |
fail:
|
1760 |
win_chr_close(chr); |
1761 |
return -1; |
1762 |
} |
1763 |
|
1764 |
|
1765 |
static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
|
1766 |
{ |
1767 |
const char *filename = qemu_opt_get(opts, "path"); |
1768 |
CharDriverState *chr; |
1769 |
WinCharState *s; |
1770 |
|
1771 |
chr = g_malloc0(sizeof(CharDriverState));
|
1772 |
s = g_malloc0(sizeof(WinCharState));
|
1773 |
chr->opaque = s; |
1774 |
chr->chr_write = win_chr_write; |
1775 |
chr->chr_close = win_chr_close; |
1776 |
|
1777 |
if (win_chr_pipe_init(chr, filename) < 0) { |
1778 |
g_free(s); |
1779 |
g_free(chr); |
1780 |
return NULL; |
1781 |
} |
1782 |
qemu_chr_generic_open(chr); |
1783 |
return chr;
|
1784 |
} |
1785 |
|
1786 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
1787 |
{ |
1788 |
CharDriverState *chr; |
1789 |
WinCharState *s; |
1790 |
|
1791 |
chr = g_malloc0(sizeof(CharDriverState));
|
1792 |
s = g_malloc0(sizeof(WinCharState));
|
1793 |
s->hcom = fd_out; |
1794 |
chr->opaque = s; |
1795 |
chr->chr_write = win_chr_write; |
1796 |
qemu_chr_generic_open(chr); |
1797 |
return chr;
|
1798 |
} |
1799 |
|
1800 |
static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
|
1801 |
{ |
1802 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
1803 |
} |
1804 |
|
1805 |
static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
|
1806 |
{ |
1807 |
const char *file_out = qemu_opt_get(opts, "path"); |
1808 |
HANDLE fd_out; |
1809 |
|
1810 |
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
1811 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
1812 |
if (fd_out == INVALID_HANDLE_VALUE) {
|
1813 |
return NULL; |
1814 |
} |
1815 |
|
1816 |
return qemu_chr_open_win_file(fd_out);
|
1817 |
} |
1818 |
|
1819 |
static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len) |
1820 |
{ |
1821 |
HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE); |
1822 |
DWORD dwSize; |
1823 |
int len1;
|
1824 |
|
1825 |
len1 = len; |
1826 |
|
1827 |
while (len1 > 0) { |
1828 |
if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) { |
1829 |
break;
|
1830 |
} |
1831 |
buf += dwSize; |
1832 |
len1 -= dwSize; |
1833 |
} |
1834 |
|
1835 |
return len - len1;
|
1836 |
} |
1837 |
|
1838 |
static void win_stdio_wait_func(void *opaque) |
1839 |
{ |
1840 |
CharDriverState *chr = opaque; |
1841 |
WinStdioCharState *stdio = chr->opaque; |
1842 |
INPUT_RECORD buf[4];
|
1843 |
int ret;
|
1844 |
DWORD dwSize; |
1845 |
int i;
|
1846 |
|
1847 |
ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf), |
1848 |
&dwSize); |
1849 |
|
1850 |
if (!ret) {
|
1851 |
/* Avoid error storm */
|
1852 |
qemu_del_wait_object(stdio->hStdIn, NULL, NULL); |
1853 |
return;
|
1854 |
} |
1855 |
|
1856 |
for (i = 0; i < dwSize; i++) { |
1857 |
KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent; |
1858 |
|
1859 |
if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
|
1860 |
int j;
|
1861 |
if (kev->uChar.AsciiChar != 0) { |
1862 |
for (j = 0; j < kev->wRepeatCount; j++) { |
1863 |
if (qemu_chr_be_can_write(chr)) {
|
1864 |
uint8_t c = kev->uChar.AsciiChar; |
1865 |
qemu_chr_be_write(chr, &c, 1);
|
1866 |
} |
1867 |
} |
1868 |
} |
1869 |
} |
1870 |
} |
1871 |
} |
1872 |
|
1873 |
static DWORD WINAPI win_stdio_thread(LPVOID param)
|
1874 |
{ |
1875 |
CharDriverState *chr = param; |
1876 |
WinStdioCharState *stdio = chr->opaque; |
1877 |
int ret;
|
1878 |
DWORD dwSize; |
1879 |
|
1880 |
while (1) { |
1881 |
|
1882 |
/* Wait for one byte */
|
1883 |
ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL); |
1884 |
|
1885 |
/* Exit in case of error, continue if nothing read */
|
1886 |
if (!ret) {
|
1887 |
break;
|
1888 |
} |
1889 |
if (!dwSize) {
|
1890 |
continue;
|
1891 |
} |
1892 |
|
1893 |
/* Some terminal emulator returns \r\n for Enter, just pass \n */
|
1894 |
if (stdio->win_stdio_buf == '\r') { |
1895 |
continue;
|
1896 |
} |
1897 |
|
1898 |
/* Signal the main thread and wait until the byte was eaten */
|
1899 |
if (!SetEvent(stdio->hInputReadyEvent)) {
|
1900 |
break;
|
1901 |
} |
1902 |
if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
|
1903 |
!= WAIT_OBJECT_0) { |
1904 |
break;
|
1905 |
} |
1906 |
} |
1907 |
|
1908 |
qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL); |
1909 |
return 0; |
1910 |
} |
1911 |
|
1912 |
static void win_stdio_thread_wait_func(void *opaque) |
1913 |
{ |
1914 |
CharDriverState *chr = opaque; |
1915 |
WinStdioCharState *stdio = chr->opaque; |
1916 |
|
1917 |
if (qemu_chr_be_can_write(chr)) {
|
1918 |
qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
|
1919 |
} |
1920 |
|
1921 |
SetEvent(stdio->hInputDoneEvent); |
1922 |
} |
1923 |
|
1924 |
static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo) |
1925 |
{ |
1926 |
WinStdioCharState *stdio = chr->opaque; |
1927 |
DWORD dwMode = 0;
|
1928 |
|
1929 |
GetConsoleMode(stdio->hStdIn, &dwMode); |
1930 |
|
1931 |
if (echo) {
|
1932 |
SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT); |
1933 |
} else {
|
1934 |
SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT); |
1935 |
} |
1936 |
} |
1937 |
|
1938 |
static void win_stdio_close(CharDriverState *chr) |
1939 |
{ |
1940 |
WinStdioCharState *stdio = chr->opaque; |
1941 |
|
1942 |
if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
|
1943 |
CloseHandle(stdio->hInputReadyEvent); |
1944 |
} |
1945 |
if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
|
1946 |
CloseHandle(stdio->hInputDoneEvent); |
1947 |
} |
1948 |
if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
|
1949 |
TerminateThread(stdio->hInputThread, 0);
|
1950 |
} |
1951 |
|
1952 |
g_free(chr->opaque); |
1953 |
g_free(chr); |
1954 |
stdio_nb_clients--; |
1955 |
} |
1956 |
|
1957 |
static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
|
1958 |
{ |
1959 |
CharDriverState *chr; |
1960 |
WinStdioCharState *stdio; |
1961 |
DWORD dwMode; |
1962 |
int is_console = 0; |
1963 |
|
1964 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS
|
1965 |
|| ((display_type != DT_NOGRAPHIC) && (stdio_nb_clients != 0))) {
|
1966 |
return NULL; |
1967 |
} |
1968 |
|
1969 |
chr = g_malloc0(sizeof(CharDriverState));
|
1970 |
stdio = g_malloc0(sizeof(WinStdioCharState));
|
1971 |
|
1972 |
stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE); |
1973 |
if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
|
1974 |
fprintf(stderr, "cannot open stdio: invalid handle\n");
|
1975 |
exit(1);
|
1976 |
} |
1977 |
|
1978 |
is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
|
1979 |
|
1980 |
chr->opaque = stdio; |
1981 |
chr->chr_write = win_stdio_write; |
1982 |
chr->chr_close = win_stdio_close; |
1983 |
|
1984 |
if (stdio_nb_clients == 0) { |
1985 |
if (is_console) {
|
1986 |
if (qemu_add_wait_object(stdio->hStdIn,
|
1987 |
win_stdio_wait_func, chr)) { |
1988 |
fprintf(stderr, "qemu_add_wait_object: failed\n");
|
1989 |
} |
1990 |
} else {
|
1991 |
DWORD dwId; |
1992 |
|
1993 |
stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
1994 |
stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
1995 |
stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread, |
1996 |
chr, 0, &dwId);
|
1997 |
|
1998 |
if (stdio->hInputThread == INVALID_HANDLE_VALUE
|
1999 |
|| stdio->hInputReadyEvent == INVALID_HANDLE_VALUE |
2000 |
|| stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) { |
2001 |
fprintf(stderr, "cannot create stdio thread or event\n");
|
2002 |
exit(1);
|
2003 |
} |
2004 |
if (qemu_add_wait_object(stdio->hInputReadyEvent,
|
2005 |
win_stdio_thread_wait_func, chr)) { |
2006 |
fprintf(stderr, "qemu_add_wait_object: failed\n");
|
2007 |
} |
2008 |
} |
2009 |
} |
2010 |
|
2011 |
dwMode |= ENABLE_LINE_INPUT; |
2012 |
|
2013 |
stdio_clients[stdio_nb_clients++] = chr; |
2014 |
if (stdio_nb_clients == 1 && is_console) { |
2015 |
/* set the terminal in raw mode */
|
2016 |
/* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
|
2017 |
dwMode |= ENABLE_PROCESSED_INPUT; |
2018 |
} |
2019 |
|
2020 |
SetConsoleMode(stdio->hStdIn, dwMode); |
2021 |
|
2022 |
chr->chr_set_echo = qemu_chr_set_echo_win_stdio; |
2023 |
qemu_chr_fe_set_echo(chr, false);
|
2024 |
|
2025 |
return chr;
|
2026 |
} |
2027 |
#endif /* !_WIN32 */ |
2028 |
|
2029 |
/***********************************************************/
|
2030 |
/* UDP Net console */
|
2031 |
|
2032 |
typedef struct { |
2033 |
int fd;
|
2034 |
uint8_t buf[READ_BUF_LEN]; |
2035 |
int bufcnt;
|
2036 |
int bufptr;
|
2037 |
int max_size;
|
2038 |
} NetCharDriver; |
2039 |
|
2040 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
2041 |
{ |
2042 |
NetCharDriver *s = chr->opaque; |
2043 |
|
2044 |
return send(s->fd, (const void *)buf, len, 0); |
2045 |
} |
2046 |
|
2047 |
static int udp_chr_read_poll(void *opaque) |
2048 |
{ |
2049 |
CharDriverState *chr = opaque; |
2050 |
NetCharDriver *s = chr->opaque; |
2051 |
|
2052 |
s->max_size = qemu_chr_be_can_write(chr); |
2053 |
|
2054 |
/* If there were any stray characters in the queue process them
|
2055 |
* first
|
2056 |
*/
|
2057 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
2058 |
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
2059 |
s->bufptr++; |
2060 |
s->max_size = qemu_chr_be_can_write(chr); |
2061 |
} |
2062 |
return s->max_size;
|
2063 |
} |
2064 |
|
2065 |
static void udp_chr_read(void *opaque) |
2066 |
{ |
2067 |
CharDriverState *chr = opaque; |
2068 |
NetCharDriver *s = chr->opaque; |
2069 |
|
2070 |
if (s->max_size == 0) |
2071 |
return;
|
2072 |
s->bufcnt = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0); |
2073 |
s->bufptr = s->bufcnt; |
2074 |
if (s->bufcnt <= 0) |
2075 |
return;
|
2076 |
|
2077 |
s->bufptr = 0;
|
2078 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
2079 |
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
2080 |
s->bufptr++; |
2081 |
s->max_size = qemu_chr_be_can_write(chr); |
2082 |
} |
2083 |
} |
2084 |
|
2085 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
2086 |
{ |
2087 |
NetCharDriver *s = chr->opaque; |
2088 |
|
2089 |
if (s->fd >= 0) { |
2090 |
qemu_set_fd_handler2(s->fd, udp_chr_read_poll, |
2091 |
udp_chr_read, NULL, chr);
|
2092 |
} |
2093 |
} |
2094 |
|
2095 |
static void udp_chr_close(CharDriverState *chr) |
2096 |
{ |
2097 |
NetCharDriver *s = chr->opaque; |
2098 |
if (s->fd >= 0) { |
2099 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
2100 |
closesocket(s->fd); |
2101 |
} |
2102 |
g_free(s); |
2103 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
2104 |
} |
2105 |
|
2106 |
static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
|
2107 |
{ |
2108 |
CharDriverState *chr = NULL;
|
2109 |
NetCharDriver *s = NULL;
|
2110 |
Error *local_err = NULL;
|
2111 |
int fd = -1; |
2112 |
|
2113 |
chr = g_malloc0(sizeof(CharDriverState));
|
2114 |
s = g_malloc0(sizeof(NetCharDriver));
|
2115 |
|
2116 |
fd = inet_dgram_opts(opts, &local_err); |
2117 |
if (fd < 0) { |
2118 |
goto return_err;
|
2119 |
} |
2120 |
|
2121 |
s->fd = fd; |
2122 |
s->bufcnt = 0;
|
2123 |
s->bufptr = 0;
|
2124 |
chr->opaque = s; |
2125 |
chr->chr_write = udp_chr_write; |
2126 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
2127 |
chr->chr_close = udp_chr_close; |
2128 |
return chr;
|
2129 |
|
2130 |
return_err:
|
2131 |
if (local_err) {
|
2132 |
qerror_report_err(local_err); |
2133 |
error_free(local_err); |
2134 |
} |
2135 |
g_free(chr); |
2136 |
g_free(s); |
2137 |
if (fd >= 0) { |
2138 |
closesocket(fd); |
2139 |
} |
2140 |
return NULL; |
2141 |
} |
2142 |
|
2143 |
/***********************************************************/
|
2144 |
/* TCP Net console */
|
2145 |
|
2146 |
typedef struct { |
2147 |
int fd, listen_fd;
|
2148 |
int connected;
|
2149 |
int max_size;
|
2150 |
int do_telnetopt;
|
2151 |
int do_nodelay;
|
2152 |
int is_unix;
|
2153 |
int msgfd;
|
2154 |
} TCPCharDriver; |
2155 |
|
2156 |
static void tcp_chr_accept(void *opaque); |
2157 |
|
2158 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
2159 |
{ |
2160 |
TCPCharDriver *s = chr->opaque; |
2161 |
if (s->connected) {
|
2162 |
return send_all(s->fd, buf, len);
|
2163 |
} else {
|
2164 |
/* XXX: indicate an error ? */
|
2165 |
return len;
|
2166 |
} |
2167 |
} |
2168 |
|
2169 |
static int tcp_chr_read_poll(void *opaque) |
2170 |
{ |
2171 |
CharDriverState *chr = opaque; |
2172 |
TCPCharDriver *s = chr->opaque; |
2173 |
if (!s->connected)
|
2174 |
return 0; |
2175 |
s->max_size = qemu_chr_be_can_write(chr); |
2176 |
return s->max_size;
|
2177 |
} |
2178 |
|
2179 |
#define IAC 255 |
2180 |
#define IAC_BREAK 243 |
2181 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
2182 |
TCPCharDriver *s, |
2183 |
uint8_t *buf, int *size)
|
2184 |
{ |
2185 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
2186 |
* char mode with no echo. All IAC options will be removed from
|
2187 |
* the buf and the do_telnetopt variable will be used to track the
|
2188 |
* state of the width of the IAC information.
|
2189 |
*
|
2190 |
* IAC commands come in sets of 3 bytes with the exception of the
|
2191 |
* "IAC BREAK" command and the double IAC.
|
2192 |
*/
|
2193 |
|
2194 |
int i;
|
2195 |
int j = 0; |
2196 |
|
2197 |
for (i = 0; i < *size; i++) { |
2198 |
if (s->do_telnetopt > 1) { |
2199 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
2200 |
/* Double IAC means send an IAC */
|
2201 |
if (j != i)
|
2202 |
buf[j] = buf[i]; |
2203 |
j++; |
2204 |
s->do_telnetopt = 1;
|
2205 |
} else {
|
2206 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
2207 |
/* Handle IAC break commands by sending a serial break */
|
2208 |
qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
2209 |
s->do_telnetopt++; |
2210 |
} |
2211 |
s->do_telnetopt++; |
2212 |
} |
2213 |
if (s->do_telnetopt >= 4) { |
2214 |
s->do_telnetopt = 1;
|
2215 |
} |
2216 |
} else {
|
2217 |
if ((unsigned char)buf[i] == IAC) { |
2218 |
s->do_telnetopt = 2;
|
2219 |
} else {
|
2220 |
if (j != i)
|
2221 |
buf[j] = buf[i]; |
2222 |
j++; |
2223 |
} |
2224 |
} |
2225 |
} |
2226 |
*size = j; |
2227 |
} |
2228 |
|
2229 |
static int tcp_get_msgfd(CharDriverState *chr) |
2230 |
{ |
2231 |
TCPCharDriver *s = chr->opaque; |
2232 |
int fd = s->msgfd;
|
2233 |
s->msgfd = -1;
|
2234 |
return fd;
|
2235 |
} |
2236 |
|
2237 |
#ifndef _WIN32
|
2238 |
static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg) |
2239 |
{ |
2240 |
TCPCharDriver *s = chr->opaque; |
2241 |
struct cmsghdr *cmsg;
|
2242 |
|
2243 |
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
|
2244 |
int fd;
|
2245 |
|
2246 |
if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) || |
2247 |
cmsg->cmsg_level != SOL_SOCKET || |
2248 |
cmsg->cmsg_type != SCM_RIGHTS) |
2249 |
continue;
|
2250 |
|
2251 |
fd = *((int *)CMSG_DATA(cmsg));
|
2252 |
if (fd < 0) |
2253 |
continue;
|
2254 |
|
2255 |
#ifndef MSG_CMSG_CLOEXEC
|
2256 |
qemu_set_cloexec(fd); |
2257 |
#endif
|
2258 |
if (s->msgfd != -1) |
2259 |
close(s->msgfd); |
2260 |
s->msgfd = fd; |
2261 |
} |
2262 |
} |
2263 |
|
2264 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
2265 |
{ |
2266 |
TCPCharDriver *s = chr->opaque; |
2267 |
struct msghdr msg = { NULL, }; |
2268 |
struct iovec iov[1]; |
2269 |
union {
|
2270 |
struct cmsghdr cmsg;
|
2271 |
char control[CMSG_SPACE(sizeof(int))]; |
2272 |
} msg_control; |
2273 |
int flags = 0; |
2274 |
ssize_t ret; |
2275 |
|
2276 |
iov[0].iov_base = buf;
|
2277 |
iov[0].iov_len = len;
|
2278 |
|
2279 |
msg.msg_iov = iov; |
2280 |
msg.msg_iovlen = 1;
|
2281 |
msg.msg_control = &msg_control; |
2282 |
msg.msg_controllen = sizeof(msg_control);
|
2283 |
|
2284 |
#ifdef MSG_CMSG_CLOEXEC
|
2285 |
flags |= MSG_CMSG_CLOEXEC; |
2286 |
#endif
|
2287 |
ret = recvmsg(s->fd, &msg, flags); |
2288 |
if (ret > 0 && s->is_unix) { |
2289 |
unix_process_msgfd(chr, &msg); |
2290 |
} |
2291 |
|
2292 |
return ret;
|
2293 |
} |
2294 |
#else
|
2295 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
2296 |
{ |
2297 |
TCPCharDriver *s = chr->opaque; |
2298 |
return qemu_recv(s->fd, buf, len, 0); |
2299 |
} |
2300 |
#endif
|
2301 |
|
2302 |
static void tcp_chr_read(void *opaque) |
2303 |
{ |
2304 |
CharDriverState *chr = opaque; |
2305 |
TCPCharDriver *s = chr->opaque; |
2306 |
uint8_t buf[READ_BUF_LEN]; |
2307 |
int len, size;
|
2308 |
|
2309 |
if (!s->connected || s->max_size <= 0) |
2310 |
return;
|
2311 |
len = sizeof(buf);
|
2312 |
if (len > s->max_size)
|
2313 |
len = s->max_size; |
2314 |
size = tcp_chr_recv(chr, (void *)buf, len);
|
2315 |
if (size == 0) { |
2316 |
/* connection closed */
|
2317 |
s->connected = 0;
|
2318 |
if (s->listen_fd >= 0) { |
2319 |
qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr); |
2320 |
} |
2321 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
2322 |
closesocket(s->fd); |
2323 |
s->fd = -1;
|
2324 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
2325 |
} else if (size > 0) { |
2326 |
if (s->do_telnetopt)
|
2327 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
2328 |
if (size > 0) |
2329 |
qemu_chr_be_write(chr, buf, size); |
2330 |
} |
2331 |
} |
2332 |
|
2333 |
#ifndef _WIN32
|
2334 |
CharDriverState *qemu_chr_open_eventfd(int eventfd)
|
2335 |
{ |
2336 |
return qemu_chr_open_fd(eventfd, eventfd);
|
2337 |
} |
2338 |
#endif
|
2339 |
|
2340 |
static void tcp_chr_connect(void *opaque) |
2341 |
{ |
2342 |
CharDriverState *chr = opaque; |
2343 |
TCPCharDriver *s = chr->opaque; |
2344 |
|
2345 |
s->connected = 1;
|
2346 |
if (s->fd >= 0) { |
2347 |
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, |
2348 |
tcp_chr_read, NULL, chr);
|
2349 |
} |
2350 |
qemu_chr_generic_open(chr); |
2351 |
} |
2352 |
|
2353 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
2354 |
static void tcp_chr_telnet_init(int fd) |
2355 |
{ |
2356 |
char buf[3]; |
2357 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
2358 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
2359 |
send(fd, (char *)buf, 3, 0); |
2360 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
2361 |
send(fd, (char *)buf, 3, 0); |
2362 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
2363 |
send(fd, (char *)buf, 3, 0); |
2364 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
2365 |
send(fd, (char *)buf, 3, 0); |
2366 |
} |
2367 |
|
2368 |
static void socket_set_nodelay(int fd) |
2369 |
{ |
2370 |
int val = 1; |
2371 |
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
2372 |
} |
2373 |
|
2374 |
static int tcp_chr_add_client(CharDriverState *chr, int fd) |
2375 |
{ |
2376 |
TCPCharDriver *s = chr->opaque; |
2377 |
if (s->fd != -1) |
2378 |
return -1; |
2379 |
|
2380 |
socket_set_nonblock(fd); |
2381 |
if (s->do_nodelay)
|
2382 |
socket_set_nodelay(fd); |
2383 |
s->fd = fd; |
2384 |
qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL); |
2385 |
tcp_chr_connect(chr); |
2386 |
|
2387 |
return 0; |
2388 |
} |
2389 |
|
2390 |
static void tcp_chr_accept(void *opaque) |
2391 |
{ |
2392 |
CharDriverState *chr = opaque; |
2393 |
TCPCharDriver *s = chr->opaque; |
2394 |
struct sockaddr_in saddr;
|
2395 |
#ifndef _WIN32
|
2396 |
struct sockaddr_un uaddr;
|
2397 |
#endif
|
2398 |
struct sockaddr *addr;
|
2399 |
socklen_t len; |
2400 |
int fd;
|
2401 |
|
2402 |
for(;;) {
|
2403 |
#ifndef _WIN32
|
2404 |
if (s->is_unix) {
|
2405 |
len = sizeof(uaddr);
|
2406 |
addr = (struct sockaddr *)&uaddr;
|
2407 |
} else
|
2408 |
#endif
|
2409 |
{ |
2410 |
len = sizeof(saddr);
|
2411 |
addr = (struct sockaddr *)&saddr;
|
2412 |
} |
2413 |
fd = qemu_accept(s->listen_fd, addr, &len); |
2414 |
if (fd < 0 && errno != EINTR) { |
2415 |
return;
|
2416 |
} else if (fd >= 0) { |
2417 |
if (s->do_telnetopt)
|
2418 |
tcp_chr_telnet_init(fd); |
2419 |
break;
|
2420 |
} |
2421 |
} |
2422 |
if (tcp_chr_add_client(chr, fd) < 0) |
2423 |
close(fd); |
2424 |
} |
2425 |
|
2426 |
static void tcp_chr_close(CharDriverState *chr) |
2427 |
{ |
2428 |
TCPCharDriver *s = chr->opaque; |
2429 |
if (s->fd >= 0) { |
2430 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
2431 |
closesocket(s->fd); |
2432 |
} |
2433 |
if (s->listen_fd >= 0) { |
2434 |
qemu_set_fd_handler2(s->listen_fd, NULL, NULL, NULL, NULL); |
2435 |
closesocket(s->listen_fd); |
2436 |
} |
2437 |
g_free(s); |
2438 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
2439 |
} |
2440 |
|
2441 |
static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay, |
2442 |
bool is_listen, bool is_telnet, |
2443 |
bool is_waitconnect,
|
2444 |
Error **errp) |
2445 |
{ |
2446 |
CharDriverState *chr = NULL;
|
2447 |
TCPCharDriver *s = NULL;
|
2448 |
char host[NI_MAXHOST], serv[NI_MAXSERV];
|
2449 |
const char *left = "", *right = ""; |
2450 |
struct sockaddr_storage ss;
|
2451 |
socklen_t ss_len = sizeof(ss);
|
2452 |
|
2453 |
memset(&ss, 0, ss_len);
|
2454 |
if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) { |
2455 |
error_setg(errp, "getsockname: %s", strerror(errno));
|
2456 |
return NULL; |
2457 |
} |
2458 |
|
2459 |
chr = g_malloc0(sizeof(CharDriverState));
|
2460 |
s = g_malloc0(sizeof(TCPCharDriver));
|
2461 |
|
2462 |
s->connected = 0;
|
2463 |
s->fd = -1;
|
2464 |
s->listen_fd = -1;
|
2465 |
s->msgfd = -1;
|
2466 |
|
2467 |
chr->filename = g_malloc(256);
|
2468 |
switch (ss.ss_family) {
|
2469 |
#ifndef _WIN32
|
2470 |
case AF_UNIX:
|
2471 |
s->is_unix = 1;
|
2472 |
snprintf(chr->filename, 256, "unix:%s%s", |
2473 |
((struct sockaddr_un *)(&ss))->sun_path,
|
2474 |
is_listen ? ",server" : ""); |
2475 |
break;
|
2476 |
#endif
|
2477 |
case AF_INET6:
|
2478 |
left = "[";
|
2479 |
right = "]";
|
2480 |
/* fall through */
|
2481 |
case AF_INET:
|
2482 |
s->do_nodelay = do_nodelay; |
2483 |
getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host), |
2484 |
serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
|
2485 |
snprintf(chr->filename, 256, "%s:%s:%s%s%s%s", |
2486 |
is_telnet ? "telnet" : "tcp", |
2487 |
left, host, right, serv, |
2488 |
is_listen ? ",server" : ""); |
2489 |
break;
|
2490 |
} |
2491 |
|
2492 |
chr->opaque = s; |
2493 |
chr->chr_write = tcp_chr_write; |
2494 |
chr->chr_close = tcp_chr_close; |
2495 |
chr->get_msgfd = tcp_get_msgfd; |
2496 |
chr->chr_add_client = tcp_chr_add_client; |
2497 |
|
2498 |
if (is_listen) {
|
2499 |
s->listen_fd = fd; |
2500 |
qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr); |
2501 |
if (is_telnet) {
|
2502 |
s->do_telnetopt = 1;
|
2503 |
} |
2504 |
} else {
|
2505 |
s->connected = 1;
|
2506 |
s->fd = fd; |
2507 |
socket_set_nodelay(fd); |
2508 |
tcp_chr_connect(chr); |
2509 |
} |
2510 |
|
2511 |
if (is_listen && is_waitconnect) {
|
2512 |
printf("QEMU waiting for connection on: %s\n",
|
2513 |
chr->filename); |
2514 |
tcp_chr_accept(chr); |
2515 |
socket_set_nonblock(s->listen_fd); |
2516 |
} |
2517 |
return chr;
|
2518 |
} |
2519 |
|
2520 |
static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
|
2521 |
{ |
2522 |
CharDriverState *chr = NULL;
|
2523 |
Error *local_err = NULL;
|
2524 |
int fd = -1; |
2525 |
int is_listen;
|
2526 |
int is_waitconnect;
|
2527 |
int do_nodelay;
|
2528 |
int is_unix;
|
2529 |
int is_telnet;
|
2530 |
|
2531 |
is_listen = qemu_opt_get_bool(opts, "server", 0); |
2532 |
is_waitconnect = qemu_opt_get_bool(opts, "wait", 1); |
2533 |
is_telnet = qemu_opt_get_bool(opts, "telnet", 0); |
2534 |
do_nodelay = !qemu_opt_get_bool(opts, "delay", 1); |
2535 |
is_unix = qemu_opt_get(opts, "path") != NULL; |
2536 |
if (!is_listen)
|
2537 |
is_waitconnect = 0;
|
2538 |
|
2539 |
if (is_unix) {
|
2540 |
if (is_listen) {
|
2541 |
fd = unix_listen_opts(opts, &local_err); |
2542 |
} else {
|
2543 |
fd = unix_connect_opts(opts, &local_err, NULL, NULL); |
2544 |
} |
2545 |
} else {
|
2546 |
if (is_listen) {
|
2547 |
fd = inet_listen_opts(opts, 0, &local_err);
|
2548 |
} else {
|
2549 |
fd = inet_connect_opts(opts, &local_err, NULL, NULL); |
2550 |
} |
2551 |
} |
2552 |
if (fd < 0) { |
2553 |
goto fail;
|
2554 |
} |
2555 |
|
2556 |
if (!is_waitconnect)
|
2557 |
socket_set_nonblock(fd); |
2558 |
|
2559 |
chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet, |
2560 |
is_waitconnect, &local_err); |
2561 |
if (error_is_set(&local_err)) {
|
2562 |
goto fail;
|
2563 |
} |
2564 |
return chr;
|
2565 |
|
2566 |
|
2567 |
fail:
|
2568 |
if (local_err) {
|
2569 |
qerror_report_err(local_err); |
2570 |
error_free(local_err); |
2571 |
} |
2572 |
if (fd >= 0) { |
2573 |
closesocket(fd); |
2574 |
} |
2575 |
if (chr) {
|
2576 |
g_free(chr->opaque); |
2577 |
g_free(chr); |
2578 |
} |
2579 |
return NULL; |
2580 |
} |
2581 |
|
2582 |
/***********************************************************/
|
2583 |
/* Memory chardev */
|
2584 |
typedef struct { |
2585 |
size_t outbuf_size; |
2586 |
size_t outbuf_capacity; |
2587 |
uint8_t *outbuf; |
2588 |
} MemoryDriver; |
2589 |
|
2590 |
static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
2591 |
{ |
2592 |
MemoryDriver *d = chr->opaque; |
2593 |
|
2594 |
/* TODO: the QString implementation has the same code, we should
|
2595 |
* introduce a generic way to do this in cutils.c */
|
2596 |
if (d->outbuf_capacity < d->outbuf_size + len) {
|
2597 |
/* grow outbuf */
|
2598 |
d->outbuf_capacity += len; |
2599 |
d->outbuf_capacity *= 2;
|
2600 |
d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity); |
2601 |
} |
2602 |
|
2603 |
memcpy(d->outbuf + d->outbuf_size, buf, len); |
2604 |
d->outbuf_size += len; |
2605 |
|
2606 |
return len;
|
2607 |
} |
2608 |
|
2609 |
void qemu_chr_init_mem(CharDriverState *chr)
|
2610 |
{ |
2611 |
MemoryDriver *d; |
2612 |
|
2613 |
d = g_malloc(sizeof(*d));
|
2614 |
d->outbuf_size = 0;
|
2615 |
d->outbuf_capacity = 4096;
|
2616 |
d->outbuf = g_malloc0(d->outbuf_capacity); |
2617 |
|
2618 |
memset(chr, 0, sizeof(*chr)); |
2619 |
chr->opaque = d; |
2620 |
chr->chr_write = mem_chr_write; |
2621 |
} |
2622 |
|
2623 |
QString *qemu_chr_mem_to_qs(CharDriverState *chr) |
2624 |
{ |
2625 |
MemoryDriver *d = chr->opaque; |
2626 |
return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1); |
2627 |
} |
2628 |
|
2629 |
/* NOTE: this driver can not be closed with qemu_chr_delete()! */
|
2630 |
void qemu_chr_close_mem(CharDriverState *chr)
|
2631 |
{ |
2632 |
MemoryDriver *d = chr->opaque; |
2633 |
|
2634 |
g_free(d->outbuf); |
2635 |
g_free(chr->opaque); |
2636 |
chr->opaque = NULL;
|
2637 |
chr->chr_write = NULL;
|
2638 |
} |
2639 |
|
2640 |
size_t qemu_chr_mem_osize(const CharDriverState *chr)
|
2641 |
{ |
2642 |
const MemoryDriver *d = chr->opaque;
|
2643 |
return d->outbuf_size;
|
2644 |
} |
2645 |
|
2646 |
QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename) |
2647 |
{ |
2648 |
char host[65], port[33], width[8], height[8]; |
2649 |
int pos;
|
2650 |
const char *p; |
2651 |
QemuOpts *opts; |
2652 |
Error *local_err = NULL;
|
2653 |
|
2654 |
opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err); |
2655 |
if (error_is_set(&local_err)) {
|
2656 |
qerror_report_err(local_err); |
2657 |
error_free(local_err); |
2658 |
return NULL; |
2659 |
} |
2660 |
|
2661 |
if (strstart(filename, "mon:", &p)) { |
2662 |
filename = p; |
2663 |
qemu_opt_set(opts, "mux", "on"); |
2664 |
} |
2665 |
|
2666 |
if (strcmp(filename, "null") == 0 || |
2667 |
strcmp(filename, "pty") == 0 || |
2668 |
strcmp(filename, "msmouse") == 0 || |
2669 |
strcmp(filename, "braille") == 0 || |
2670 |
strcmp(filename, "stdio") == 0) { |
2671 |
qemu_opt_set(opts, "backend", filename);
|
2672 |
return opts;
|
2673 |
} |
2674 |
if (strstart(filename, "vc", &p)) { |
2675 |
qemu_opt_set(opts, "backend", "vc"); |
2676 |
if (*p == ':') { |
2677 |
if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) { |
2678 |
/* pixels */
|
2679 |
qemu_opt_set(opts, "width", width);
|
2680 |
qemu_opt_set(opts, "height", height);
|
2681 |
} else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) { |
2682 |
/* chars */
|
2683 |
qemu_opt_set(opts, "cols", width);
|
2684 |
qemu_opt_set(opts, "rows", height);
|
2685 |
} else {
|
2686 |
goto fail;
|
2687 |
} |
2688 |
} |
2689 |
return opts;
|
2690 |
} |
2691 |
if (strcmp(filename, "con:") == 0) { |
2692 |
qemu_opt_set(opts, "backend", "console"); |
2693 |
return opts;
|
2694 |
} |
2695 |
if (strstart(filename, "COM", NULL)) { |
2696 |
qemu_opt_set(opts, "backend", "serial"); |
2697 |
qemu_opt_set(opts, "path", filename);
|
2698 |
return opts;
|
2699 |
} |
2700 |
if (strstart(filename, "file:", &p)) { |
2701 |
qemu_opt_set(opts, "backend", "file"); |
2702 |
qemu_opt_set(opts, "path", p);
|
2703 |
return opts;
|
2704 |
} |
2705 |
if (strstart(filename, "pipe:", &p)) { |
2706 |
qemu_opt_set(opts, "backend", "pipe"); |
2707 |
qemu_opt_set(opts, "path", p);
|
2708 |
return opts;
|
2709 |
} |
2710 |
if (strstart(filename, "tcp:", &p) || |
2711 |
strstart(filename, "telnet:", &p)) {
|
2712 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
2713 |
host[0] = 0; |
2714 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) |
2715 |
goto fail;
|
2716 |
} |
2717 |
qemu_opt_set(opts, "backend", "socket"); |
2718 |
qemu_opt_set(opts, "host", host);
|
2719 |
qemu_opt_set(opts, "port", port);
|
2720 |
if (p[pos] == ',') { |
2721 |
if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0) |
2722 |
goto fail;
|
2723 |
} |
2724 |
if (strstart(filename, "telnet:", &p)) |
2725 |
qemu_opt_set(opts, "telnet", "on"); |
2726 |
return opts;
|
2727 |
} |
2728 |
if (strstart(filename, "udp:", &p)) { |
2729 |
qemu_opt_set(opts, "backend", "udp"); |
2730 |
if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) { |
2731 |
host[0] = 0; |
2732 |
if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) { |
2733 |
goto fail;
|
2734 |
} |
2735 |
} |
2736 |
qemu_opt_set(opts, "host", host);
|
2737 |
qemu_opt_set(opts, "port", port);
|
2738 |
if (p[pos] == '@') { |
2739 |
p += pos + 1;
|
2740 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
2741 |
host[0] = 0; |
2742 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) { |
2743 |
goto fail;
|
2744 |
} |
2745 |
} |
2746 |
qemu_opt_set(opts, "localaddr", host);
|
2747 |
qemu_opt_set(opts, "localport", port);
|
2748 |
} |
2749 |
return opts;
|
2750 |
} |
2751 |
if (strstart(filename, "unix:", &p)) { |
2752 |
qemu_opt_set(opts, "backend", "socket"); |
2753 |
if (qemu_opts_do_parse(opts, p, "path") != 0) |
2754 |
goto fail;
|
2755 |
return opts;
|
2756 |
} |
2757 |
if (strstart(filename, "/dev/parport", NULL) || |
2758 |
strstart(filename, "/dev/ppi", NULL)) { |
2759 |
qemu_opt_set(opts, "backend", "parport"); |
2760 |
qemu_opt_set(opts, "path", filename);
|
2761 |
return opts;
|
2762 |
} |
2763 |
if (strstart(filename, "/dev/", NULL)) { |
2764 |
qemu_opt_set(opts, "backend", "tty"); |
2765 |
qemu_opt_set(opts, "path", filename);
|
2766 |
return opts;
|
2767 |
} |
2768 |
|
2769 |
fail:
|
2770 |
qemu_opts_del(opts); |
2771 |
return NULL; |
2772 |
} |
2773 |
|
2774 |
#ifdef HAVE_CHARDEV_PARPORT
|
2775 |
|
2776 |
static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
|
2777 |
{ |
2778 |
const char *filename = qemu_opt_get(opts, "path"); |
2779 |
int fd;
|
2780 |
|
2781 |
fd = qemu_open(filename, O_RDWR); |
2782 |
if (fd < 0) { |
2783 |
return NULL; |
2784 |
} |
2785 |
return qemu_chr_open_pp_fd(fd);
|
2786 |
} |
2787 |
|
2788 |
#endif
|
2789 |
|
2790 |
static const struct { |
2791 |
const char *name; |
2792 |
CharDriverState *(*open)(QemuOpts *opts); |
2793 |
} backend_table[] = { |
2794 |
{ .name = "null", .open = qemu_chr_open_null },
|
2795 |
{ .name = "socket", .open = qemu_chr_open_socket },
|
2796 |
{ .name = "udp", .open = qemu_chr_open_udp },
|
2797 |
{ .name = "msmouse", .open = qemu_chr_open_msmouse },
|
2798 |
{ .name = "vc", .open = text_console_init },
|
2799 |
#ifdef _WIN32
|
2800 |
{ .name = "file", .open = qemu_chr_open_win_file_out },
|
2801 |
{ .name = "pipe", .open = qemu_chr_open_win_pipe },
|
2802 |
{ .name = "console", .open = qemu_chr_open_win_con },
|
2803 |
{ .name = "serial", .open = qemu_chr_open_win },
|
2804 |
{ .name = "stdio", .open = qemu_chr_open_win_stdio },
|
2805 |
#else
|
2806 |
{ .name = "file", .open = qemu_chr_open_file_out },
|
2807 |
{ .name = "pipe", .open = qemu_chr_open_pipe },
|
2808 |
{ .name = "stdio", .open = qemu_chr_open_stdio },
|
2809 |
#endif
|
2810 |
#ifdef CONFIG_BRLAPI
|
2811 |
{ .name = "braille", .open = chr_baum_init },
|
2812 |
#endif
|
2813 |
#ifdef HAVE_CHARDEV_TTY
|
2814 |
{ .name = "tty", .open = qemu_chr_open_tty },
|
2815 |
{ .name = "serial", .open = qemu_chr_open_tty },
|
2816 |
{ .name = "pty", .open = qemu_chr_open_pty },
|
2817 |
#endif
|
2818 |
#ifdef HAVE_CHARDEV_PARPORT
|
2819 |
{ .name = "parallel", .open = qemu_chr_open_pp },
|
2820 |
{ .name = "parport", .open = qemu_chr_open_pp },
|
2821 |
#endif
|
2822 |
#ifdef CONFIG_SPICE
|
2823 |
{ .name = "spicevmc", .open = qemu_chr_open_spice },
|
2824 |
#if SPICE_SERVER_VERSION >= 0x000c02 |
2825 |
{ .name = "spiceport", .open = qemu_chr_open_spice_port },
|
2826 |
#endif
|
2827 |
#endif
|
2828 |
}; |
2829 |
|
2830 |
CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts, |
2831 |
void (*init)(struct CharDriverState *s), |
2832 |
Error **errp) |
2833 |
{ |
2834 |
CharDriverState *chr; |
2835 |
int i;
|
2836 |
|
2837 |
if (qemu_opts_id(opts) == NULL) { |
2838 |
error_setg(errp, "chardev: no id specified\n");
|
2839 |
goto err;
|
2840 |
} |
2841 |
|
2842 |
if (qemu_opt_get(opts, "backend") == NULL) { |
2843 |
error_setg(errp, "chardev: \"%s\" missing backend\n",
|
2844 |
qemu_opts_id(opts)); |
2845 |
goto err;
|
2846 |
} |
2847 |
for (i = 0; i < ARRAY_SIZE(backend_table); i++) { |
2848 |
if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0) |
2849 |
break;
|
2850 |
} |
2851 |
if (i == ARRAY_SIZE(backend_table)) {
|
2852 |
error_setg(errp, "chardev: backend \"%s\" not found\n",
|
2853 |
qemu_opt_get(opts, "backend"));
|
2854 |
goto err;
|
2855 |
} |
2856 |
|
2857 |
chr = backend_table[i].open(opts); |
2858 |
if (!chr) {
|
2859 |
error_setg(errp, "chardev: opening backend \"%s\" failed\n",
|
2860 |
qemu_opt_get(opts, "backend"));
|
2861 |
goto err;
|
2862 |
} |
2863 |
|
2864 |
if (!chr->filename)
|
2865 |
chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
|
2866 |
chr->init = init; |
2867 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
2868 |
|
2869 |
if (qemu_opt_get_bool(opts, "mux", 0)) { |
2870 |
CharDriverState *base = chr; |
2871 |
int len = strlen(qemu_opts_id(opts)) + 6; |
2872 |
base->label = g_malloc(len); |
2873 |
snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
|
2874 |
chr = qemu_chr_open_mux(base); |
2875 |
chr->filename = base->filename; |
2876 |
chr->avail_connections = MAX_MUX; |
2877 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
2878 |
} else {
|
2879 |
chr->avail_connections = 1;
|
2880 |
} |
2881 |
chr->label = g_strdup(qemu_opts_id(opts)); |
2882 |
chr->opts = opts; |
2883 |
return chr;
|
2884 |
|
2885 |
err:
|
2886 |
qemu_opts_del(opts); |
2887 |
return NULL; |
2888 |
} |
2889 |
|
2890 |
CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) |
2891 |
{ |
2892 |
const char *p; |
2893 |
CharDriverState *chr; |
2894 |
QemuOpts *opts; |
2895 |
Error *err = NULL;
|
2896 |
|
2897 |
if (strstart(filename, "chardev:", &p)) { |
2898 |
return qemu_chr_find(p);
|
2899 |
} |
2900 |
|
2901 |
opts = qemu_chr_parse_compat(label, filename); |
2902 |
if (!opts)
|
2903 |
return NULL; |
2904 |
|
2905 |
chr = qemu_chr_new_from_opts(opts, init, &err); |
2906 |
if (error_is_set(&err)) {
|
2907 |
fprintf(stderr, "%s\n", error_get_pretty(err));
|
2908 |
error_free(err); |
2909 |
} |
2910 |
if (chr && qemu_opt_get_bool(opts, "mux", 0)) { |
2911 |
monitor_init(chr, MONITOR_USE_READLINE); |
2912 |
} |
2913 |
return chr;
|
2914 |
} |
2915 |
|
2916 |
void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo) |
2917 |
{ |
2918 |
if (chr->chr_set_echo) {
|
2919 |
chr->chr_set_echo(chr, echo); |
2920 |
} |
2921 |
} |
2922 |
|
2923 |
void qemu_chr_fe_open(struct CharDriverState *chr) |
2924 |
{ |
2925 |
if (chr->chr_guest_open) {
|
2926 |
chr->chr_guest_open(chr); |
2927 |
} |
2928 |
} |
2929 |
|
2930 |
void qemu_chr_fe_close(struct CharDriverState *chr) |
2931 |
{ |
2932 |
if (chr->chr_guest_close) {
|
2933 |
chr->chr_guest_close(chr); |
2934 |
} |
2935 |
} |
2936 |
|
2937 |
void qemu_chr_delete(CharDriverState *chr)
|
2938 |
{ |
2939 |
QTAILQ_REMOVE(&chardevs, chr, next); |
2940 |
if (chr->chr_close) {
|
2941 |
chr->chr_close(chr); |
2942 |
} |
2943 |
g_free(chr->filename); |
2944 |
g_free(chr->label); |
2945 |
if (chr->opts) {
|
2946 |
qemu_opts_del(chr->opts); |
2947 |
} |
2948 |
g_free(chr); |
2949 |
} |
2950 |
|
2951 |
ChardevInfoList *qmp_query_chardev(Error **errp) |
2952 |
{ |
2953 |
ChardevInfoList *chr_list = NULL;
|
2954 |
CharDriverState *chr; |
2955 |
|
2956 |
QTAILQ_FOREACH(chr, &chardevs, next) { |
2957 |
ChardevInfoList *info = g_malloc0(sizeof(*info));
|
2958 |
info->value = g_malloc0(sizeof(*info->value));
|
2959 |
info->value->label = g_strdup(chr->label); |
2960 |
info->value->filename = g_strdup(chr->filename); |
2961 |
|
2962 |
info->next = chr_list; |
2963 |
chr_list = info; |
2964 |
} |
2965 |
|
2966 |
return chr_list;
|
2967 |
} |
2968 |
|
2969 |
CharDriverState *qemu_chr_find(const char *name) |
2970 |
{ |
2971 |
CharDriverState *chr; |
2972 |
|
2973 |
QTAILQ_FOREACH(chr, &chardevs, next) { |
2974 |
if (strcmp(chr->label, name) != 0) |
2975 |
continue;
|
2976 |
return chr;
|
2977 |
} |
2978 |
return NULL; |
2979 |
} |
2980 |
|
2981 |
/* Get a character (serial) device interface. */
|
2982 |
CharDriverState *qemu_char_get_next_serial(void)
|
2983 |
{ |
2984 |
static int next_serial; |
2985 |
|
2986 |
/* FIXME: This function needs to go away: use chardev properties! */
|
2987 |
return serial_hds[next_serial++];
|
2988 |
} |
2989 |
|
2990 |
QemuOptsList qemu_chardev_opts = { |
2991 |
.name = "chardev",
|
2992 |
.implied_opt_name = "backend",
|
2993 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head), |
2994 |
.desc = { |
2995 |
{ |
2996 |
.name = "backend",
|
2997 |
.type = QEMU_OPT_STRING, |
2998 |
},{ |
2999 |
.name = "path",
|
3000 |
.type = QEMU_OPT_STRING, |
3001 |
},{ |
3002 |
.name = "host",
|
3003 |
.type = QEMU_OPT_STRING, |
3004 |
},{ |
3005 |
.name = "port",
|
3006 |
.type = QEMU_OPT_STRING, |
3007 |
},{ |
3008 |
.name = "localaddr",
|
3009 |
.type = QEMU_OPT_STRING, |
3010 |
},{ |
3011 |
.name = "localport",
|
3012 |
.type = QEMU_OPT_STRING, |
3013 |
},{ |
3014 |
.name = "to",
|
3015 |
.type = QEMU_OPT_NUMBER, |
3016 |
},{ |
3017 |
.name = "ipv4",
|
3018 |
.type = QEMU_OPT_BOOL, |
3019 |
},{ |
3020 |
.name = "ipv6",
|
3021 |
.type = QEMU_OPT_BOOL, |
3022 |
},{ |
3023 |
.name = "wait",
|
3024 |
.type = QEMU_OPT_BOOL, |
3025 |
},{ |
3026 |
.name = "server",
|
3027 |
.type = QEMU_OPT_BOOL, |
3028 |
},{ |
3029 |
.name = "delay",
|
3030 |
.type = QEMU_OPT_BOOL, |
3031 |
},{ |
3032 |
.name = "telnet",
|
3033 |
.type = QEMU_OPT_BOOL, |
3034 |
},{ |
3035 |
.name = "width",
|
3036 |
.type = QEMU_OPT_NUMBER, |
3037 |
},{ |
3038 |
.name = "height",
|
3039 |
.type = QEMU_OPT_NUMBER, |
3040 |
},{ |
3041 |
.name = "cols",
|
3042 |
.type = QEMU_OPT_NUMBER, |
3043 |
},{ |
3044 |
.name = "rows",
|
3045 |
.type = QEMU_OPT_NUMBER, |
3046 |
},{ |
3047 |
.name = "mux",
|
3048 |
.type = QEMU_OPT_BOOL, |
3049 |
},{ |
3050 |
.name = "signal",
|
3051 |
.type = QEMU_OPT_BOOL, |
3052 |
},{ |
3053 |
.name = "name",
|
3054 |
.type = QEMU_OPT_STRING, |
3055 |
},{ |
3056 |
.name = "debug",
|
3057 |
.type = QEMU_OPT_NUMBER, |
3058 |
}, |
3059 |
{ /* end of list */ }
|
3060 |
}, |
3061 |
}; |
3062 |
|
3063 |
#ifdef _WIN32
|
3064 |
|
3065 |
static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
|
3066 |
{ |
3067 |
HANDLE out; |
3068 |
|
3069 |
if (file->in) {
|
3070 |
error_setg(errp, "input file not supported");
|
3071 |
return NULL; |
3072 |
} |
3073 |
|
3074 |
out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
3075 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
3076 |
if (out == INVALID_HANDLE_VALUE) {
|
3077 |
error_setg(errp, "open %s failed", file->out);
|
3078 |
return NULL; |
3079 |
} |
3080 |
return qemu_chr_open_win_file(out);
|
3081 |
} |
3082 |
|
3083 |
static CharDriverState *qmp_chardev_open_port(ChardevPort *port, Error **errp)
|
3084 |
{ |
3085 |
switch (port->type) {
|
3086 |
case CHARDEV_PORT_KIND_SERIAL:
|
3087 |
return qemu_chr_open_win_path(port->device);
|
3088 |
default:
|
3089 |
error_setg(errp, "unknown chardev port (%d)", port->type);
|
3090 |
return NULL; |
3091 |
} |
3092 |
} |
3093 |
|
3094 |
#else /* WIN32 */ |
3095 |
|
3096 |
static int qmp_chardev_open_file_source(char *src, int flags, |
3097 |
Error **errp) |
3098 |
{ |
3099 |
int fd = -1; |
3100 |
|
3101 |
TFR(fd = qemu_open(src, flags, 0666));
|
3102 |
if (fd == -1) { |
3103 |
error_setg(errp, "open %s: %s", src, strerror(errno));
|
3104 |
} |
3105 |
return fd;
|
3106 |
} |
3107 |
|
3108 |
static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
|
3109 |
{ |
3110 |
int flags, in = -1, out = -1; |
3111 |
|
3112 |
flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY; |
3113 |
out = qmp_chardev_open_file_source(file->out, flags, errp); |
3114 |
if (error_is_set(errp)) {
|
3115 |
return NULL; |
3116 |
} |
3117 |
|
3118 |
if (file->in) {
|
3119 |
flags = O_RDONLY; |
3120 |
in = qmp_chardev_open_file_source(file->in, flags, errp); |
3121 |
if (error_is_set(errp)) {
|
3122 |
qemu_close(out); |
3123 |
return NULL; |
3124 |
} |
3125 |
} |
3126 |
|
3127 |
return qemu_chr_open_fd(in, out);
|
3128 |
} |
3129 |
|
3130 |
static CharDriverState *qmp_chardev_open_port(ChardevPort *port, Error **errp)
|
3131 |
{ |
3132 |
int flags, fd;
|
3133 |
|
3134 |
switch (port->type) {
|
3135 |
#ifdef HAVE_CHARDEV_TTY
|
3136 |
case CHARDEV_PORT_KIND_SERIAL:
|
3137 |
flags = O_RDWR; |
3138 |
fd = qmp_chardev_open_file_source(port->device, flags, errp); |
3139 |
if (error_is_set(errp)) {
|
3140 |
return NULL; |
3141 |
} |
3142 |
socket_set_nonblock(fd); |
3143 |
return qemu_chr_open_tty_fd(fd);
|
3144 |
#endif
|
3145 |
#ifdef HAVE_CHARDEV_PARPORT
|
3146 |
case CHARDEV_PORT_KIND_PARALLEL:
|
3147 |
flags = O_RDWR; |
3148 |
fd = qmp_chardev_open_file_source(port->device, flags, errp); |
3149 |
if (error_is_set(errp)) {
|
3150 |
return NULL; |
3151 |
} |
3152 |
return qemu_chr_open_pp_fd(fd);
|
3153 |
#endif
|
3154 |
default:
|
3155 |
error_setg(errp, "unknown chardev port (%d)", port->type);
|
3156 |
return NULL; |
3157 |
} |
3158 |
} |
3159 |
|
3160 |
#endif /* WIN32 */ |
3161 |
|
3162 |
static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
|
3163 |
Error **errp) |
3164 |
{ |
3165 |
SocketAddress *addr = sock->addr; |
3166 |
bool do_nodelay = sock->has_nodelay ? sock->nodelay : false; |
3167 |
bool is_listen = sock->has_server ? sock->server : true; |
3168 |
bool is_telnet = sock->has_telnet ? sock->telnet : false; |
3169 |
bool is_waitconnect = sock->has_wait ? sock->wait : false; |
3170 |
int fd;
|
3171 |
|
3172 |
if (is_listen) {
|
3173 |
fd = socket_listen(addr, errp); |
3174 |
} else {
|
3175 |
fd = socket_connect(addr, errp, NULL, NULL); |
3176 |
} |
3177 |
if (error_is_set(errp)) {
|
3178 |
return NULL; |
3179 |
} |
3180 |
return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
|
3181 |
is_telnet, is_waitconnect, errp); |
3182 |
} |
3183 |
|
3184 |
ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend, |
3185 |
Error **errp) |
3186 |
{ |
3187 |
ChardevReturn *ret = g_new0(ChardevReturn, 1);
|
3188 |
CharDriverState *chr = NULL;
|
3189 |
|
3190 |
chr = qemu_chr_find(id); |
3191 |
if (chr) {
|
3192 |
error_setg(errp, "Chardev '%s' already exists", id);
|
3193 |
g_free(ret); |
3194 |
return NULL; |
3195 |
} |
3196 |
|
3197 |
switch (backend->kind) {
|
3198 |
case CHARDEV_BACKEND_KIND_FILE:
|
3199 |
chr = qmp_chardev_open_file(backend->file, errp); |
3200 |
break;
|
3201 |
case CHARDEV_BACKEND_KIND_PORT:
|
3202 |
chr = qmp_chardev_open_port(backend->port, errp); |
3203 |
break;
|
3204 |
case CHARDEV_BACKEND_KIND_SOCKET:
|
3205 |
chr = qmp_chardev_open_socket(backend->socket, errp); |
3206 |
break;
|
3207 |
#ifdef HAVE_CHARDEV_TTY
|
3208 |
case CHARDEV_BACKEND_KIND_PTY:
|
3209 |
{ |
3210 |
/* qemu_chr_open_pty sets "path" in opts */
|
3211 |
QemuOpts *opts; |
3212 |
opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
|
3213 |
chr = qemu_chr_open_pty(opts); |
3214 |
ret->pty = g_strdup(qemu_opt_get(opts, "path"));
|
3215 |
ret->has_pty = true;
|
3216 |
qemu_opts_del(opts); |
3217 |
break;
|
3218 |
} |
3219 |
#endif
|
3220 |
case CHARDEV_BACKEND_KIND_NULL:
|
3221 |
chr = qemu_chr_open_null(NULL);
|
3222 |
break;
|
3223 |
default:
|
3224 |
error_setg(errp, "unknown chardev backend (%d)", backend->kind);
|
3225 |
break;
|
3226 |
} |
3227 |
|
3228 |
if (chr == NULL && !error_is_set(errp)) { |
3229 |
error_setg(errp, "Failed to create chardev");
|
3230 |
} |
3231 |
if (chr) {
|
3232 |
chr->label = g_strdup(id); |
3233 |
chr->avail_connections = 1;
|
3234 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
3235 |
return ret;
|
3236 |
} else {
|
3237 |
g_free(ret); |
3238 |
return NULL; |
3239 |
} |
3240 |
} |
3241 |
|
3242 |
void qmp_chardev_remove(const char *id, Error **errp) |
3243 |
{ |
3244 |
CharDriverState *chr; |
3245 |
|
3246 |
chr = qemu_chr_find(id); |
3247 |
if (NULL == chr) { |
3248 |
error_setg(errp, "Chardev '%s' not found", id);
|
3249 |
return;
|
3250 |
} |
3251 |
if (chr->chr_can_read || chr->chr_read ||
|
3252 |
chr->chr_event || chr->handler_opaque) { |
3253 |
error_setg(errp, "Chardev '%s' is busy", id);
|
3254 |
return;
|
3255 |
} |
3256 |
qemu_chr_delete(chr); |
3257 |
} |