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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 gboolean qemu_chr_generic_open_bh(gpointer 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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s->idle_tag = 0;
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return FALSE;
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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->idle_tag == 0) { |
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s->idle_tag = g_idle_add(qemu_chr_generic_open_bh, s); |
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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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} |
295 |
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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"; |
313 |
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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'); |
317 |
} 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)); |
323 |
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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} |
330 |
} |
331 |
} |
332 |
|
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static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event) |
334 |
{ |
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if (d->chr_event[mux_nr])
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d->chr_event[mux_nr](d->ext_opaque[mux_nr], event); |
337 |
} |
338 |
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339 |
static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
340 |
{ |
341 |
if (d->term_got_escape) {
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d->term_got_escape = 0;
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343 |
if (ch == term_escape_char)
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goto send_char;
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switch(ch) {
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case '?': |
347 |
case 'h': |
348 |
mux_print_help(chr); |
349 |
break;
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350 |
case 'x': |
351 |
{ |
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const char *term = "QEMU: Terminated\n\r"; |
353 |
chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
354 |
exit(0);
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break;
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} |
357 |
case 's': |
358 |
bdrv_commit_all(); |
359 |
break;
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360 |
case 'b': |
361 |
qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
362 |
break;
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363 |
case 'c': |
364 |
/* Switch to the next registered device */
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365 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
366 |
d->focus++; |
367 |
if (d->focus >= d->mux_cnt)
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d->focus = 0;
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369 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
370 |
break;
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371 |
case 't': |
372 |
d->timestamps = !d->timestamps; |
373 |
d->timestamps_start = -1;
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374 |
d->linestart = 0;
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375 |
break;
|
376 |
} |
377 |
} else if (ch == term_escape_char) { |
378 |
d->term_got_escape = 1;
|
379 |
} else {
|
380 |
send_char:
|
381 |
return 1; |
382 |
} |
383 |
return 0; |
384 |
} |
385 |
|
386 |
static void mux_chr_accept_input(CharDriverState *chr) |
387 |
{ |
388 |
MuxDriver *d = chr->opaque; |
389 |
int m = d->focus;
|
390 |
|
391 |
while (d->prod[m] != d->cons[m] &&
|
392 |
d->chr_can_read[m] && |
393 |
d->chr_can_read[m](d->ext_opaque[m])) { |
394 |
d->chr_read[m](d->ext_opaque[m], |
395 |
&d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
|
396 |
} |
397 |
} |
398 |
|
399 |
static int mux_chr_can_read(void *opaque) |
400 |
{ |
401 |
CharDriverState *chr = opaque; |
402 |
MuxDriver *d = chr->opaque; |
403 |
int m = d->focus;
|
404 |
|
405 |
if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
|
406 |
return 1; |
407 |
if (d->chr_can_read[m])
|
408 |
return d->chr_can_read[m](d->ext_opaque[m]);
|
409 |
return 0; |
410 |
} |
411 |
|
412 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
413 |
{ |
414 |
CharDriverState *chr = opaque; |
415 |
MuxDriver *d = chr->opaque; |
416 |
int m = d->focus;
|
417 |
int i;
|
418 |
|
419 |
mux_chr_accept_input (opaque); |
420 |
|
421 |
for(i = 0; i < size; i++) |
422 |
if (mux_proc_byte(chr, d, buf[i])) {
|
423 |
if (d->prod[m] == d->cons[m] &&
|
424 |
d->chr_can_read[m] && |
425 |
d->chr_can_read[m](d->ext_opaque[m])) |
426 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
427 |
else
|
428 |
d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i]; |
429 |
} |
430 |
} |
431 |
|
432 |
static void mux_chr_event(void *opaque, int event) |
433 |
{ |
434 |
CharDriverState *chr = opaque; |
435 |
MuxDriver *d = chr->opaque; |
436 |
int i;
|
437 |
|
438 |
/* Send the event to all registered listeners */
|
439 |
for (i = 0; i < d->mux_cnt; i++) |
440 |
mux_chr_send_event(d, i, event); |
441 |
} |
442 |
|
443 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
444 |
{ |
445 |
MuxDriver *d = chr->opaque; |
446 |
|
447 |
if (d->mux_cnt >= MAX_MUX) {
|
448 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
449 |
return;
|
450 |
} |
451 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
452 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
453 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
454 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
455 |
/* Fix up the real driver with mux routines */
|
456 |
if (d->mux_cnt == 0) { |
457 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
458 |
mux_chr_event, chr); |
459 |
} |
460 |
if (d->focus != -1) { |
461 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
462 |
} |
463 |
d->focus = d->mux_cnt; |
464 |
d->mux_cnt++; |
465 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
466 |
} |
467 |
|
468 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
469 |
{ |
470 |
CharDriverState *chr; |
471 |
MuxDriver *d; |
472 |
|
473 |
chr = g_malloc0(sizeof(CharDriverState));
|
474 |
d = g_malloc0(sizeof(MuxDriver));
|
475 |
|
476 |
chr->opaque = d; |
477 |
d->drv = drv; |
478 |
d->focus = -1;
|
479 |
chr->chr_write = mux_chr_write; |
480 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
481 |
chr->chr_accept_input = mux_chr_accept_input; |
482 |
/* Frontend guest-open / -close notification is not support with muxes */
|
483 |
chr->chr_guest_open = NULL;
|
484 |
chr->chr_guest_close = NULL;
|
485 |
|
486 |
/* Muxes are always open on creation */
|
487 |
qemu_chr_generic_open(chr); |
488 |
|
489 |
return chr;
|
490 |
} |
491 |
|
492 |
|
493 |
#ifdef _WIN32
|
494 |
int send_all(int fd, const void *buf, int len1) |
495 |
{ |
496 |
int ret, len;
|
497 |
|
498 |
len = len1; |
499 |
while (len > 0) { |
500 |
ret = send(fd, buf, len, 0);
|
501 |
if (ret < 0) { |
502 |
errno = WSAGetLastError(); |
503 |
if (errno != WSAEWOULDBLOCK) {
|
504 |
return -1; |
505 |
} |
506 |
} else if (ret == 0) { |
507 |
break;
|
508 |
} else {
|
509 |
buf += ret; |
510 |
len -= ret; |
511 |
} |
512 |
} |
513 |
return len1 - len;
|
514 |
} |
515 |
|
516 |
#else
|
517 |
|
518 |
int send_all(int fd, const void *_buf, int len1) |
519 |
{ |
520 |
int ret, len;
|
521 |
const uint8_t *buf = _buf;
|
522 |
|
523 |
len = len1; |
524 |
while (len > 0) { |
525 |
ret = write(fd, buf, len); |
526 |
if (ret < 0) { |
527 |
if (errno != EINTR && errno != EAGAIN)
|
528 |
return -1; |
529 |
} else if (ret == 0) { |
530 |
break;
|
531 |
} else {
|
532 |
buf += ret; |
533 |
len -= ret; |
534 |
} |
535 |
} |
536 |
return len1 - len;
|
537 |
} |
538 |
#endif /* !_WIN32 */ |
539 |
|
540 |
#ifndef _WIN32
|
541 |
|
542 |
typedef struct IOWatchPoll |
543 |
{ |
544 |
GSource *src; |
545 |
int max_size;
|
546 |
|
547 |
IOCanReadHandler *fd_can_read; |
548 |
void *opaque;
|
549 |
|
550 |
QTAILQ_ENTRY(IOWatchPoll) node; |
551 |
} IOWatchPoll; |
552 |
|
553 |
static QTAILQ_HEAD(, IOWatchPoll) io_watch_poll_list =
|
554 |
QTAILQ_HEAD_INITIALIZER(io_watch_poll_list); |
555 |
|
556 |
static IOWatchPoll *io_watch_poll_from_source(GSource *source)
|
557 |
{ |
558 |
IOWatchPoll *i; |
559 |
|
560 |
QTAILQ_FOREACH(i, &io_watch_poll_list, node) { |
561 |
if (i->src == source) {
|
562 |
return i;
|
563 |
} |
564 |
} |
565 |
|
566 |
return NULL; |
567 |
} |
568 |
|
569 |
static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
|
570 |
{ |
571 |
IOWatchPoll *iwp = io_watch_poll_from_source(source); |
572 |
|
573 |
iwp->max_size = iwp->fd_can_read(iwp->opaque); |
574 |
if (iwp->max_size == 0) { |
575 |
return FALSE;
|
576 |
} |
577 |
|
578 |
return g_io_watch_funcs.prepare(source, timeout_);
|
579 |
} |
580 |
|
581 |
static gboolean io_watch_poll_check(GSource *source)
|
582 |
{ |
583 |
IOWatchPoll *iwp = io_watch_poll_from_source(source); |
584 |
|
585 |
if (iwp->max_size == 0) { |
586 |
return FALSE;
|
587 |
} |
588 |
|
589 |
return g_io_watch_funcs.check(source);
|
590 |
} |
591 |
|
592 |
static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
|
593 |
gpointer user_data) |
594 |
{ |
595 |
return g_io_watch_funcs.dispatch(source, callback, user_data);
|
596 |
} |
597 |
|
598 |
static void io_watch_poll_finalize(GSource *source) |
599 |
{ |
600 |
IOWatchPoll *iwp = io_watch_poll_from_source(source); |
601 |
QTAILQ_REMOVE(&io_watch_poll_list, iwp, node); |
602 |
g_io_watch_funcs.finalize(source); |
603 |
} |
604 |
|
605 |
static GSourceFuncs io_watch_poll_funcs = {
|
606 |
.prepare = io_watch_poll_prepare, |
607 |
.check = io_watch_poll_check, |
608 |
.dispatch = io_watch_poll_dispatch, |
609 |
.finalize = io_watch_poll_finalize, |
610 |
}; |
611 |
|
612 |
/* Can only be used for read */
|
613 |
static guint io_add_watch_poll(GIOChannel *channel,
|
614 |
IOCanReadHandler *fd_can_read, |
615 |
GIOFunc fd_read, |
616 |
gpointer user_data) |
617 |
{ |
618 |
IOWatchPoll *iwp; |
619 |
GSource *src; |
620 |
guint tag; |
621 |
|
622 |
src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP); |
623 |
g_source_set_funcs(src, &io_watch_poll_funcs); |
624 |
g_source_set_callback(src, (GSourceFunc)fd_read, user_data, NULL);
|
625 |
tag = g_source_attach(src, NULL);
|
626 |
g_source_unref(src); |
627 |
|
628 |
iwp = g_malloc0(sizeof(*iwp));
|
629 |
iwp->src = src; |
630 |
iwp->max_size = 0;
|
631 |
iwp->fd_can_read = fd_can_read; |
632 |
iwp->opaque = user_data; |
633 |
|
634 |
QTAILQ_INSERT_HEAD(&io_watch_poll_list, iwp, node); |
635 |
|
636 |
return tag;
|
637 |
} |
638 |
|
639 |
static GIOChannel *io_channel_from_fd(int fd) |
640 |
{ |
641 |
GIOChannel *chan; |
642 |
|
643 |
if (fd == -1) { |
644 |
return NULL; |
645 |
} |
646 |
|
647 |
chan = g_io_channel_unix_new(fd); |
648 |
|
649 |
g_io_channel_set_encoding(chan, NULL, NULL); |
650 |
g_io_channel_set_buffered(chan, FALSE); |
651 |
|
652 |
return chan;
|
653 |
} |
654 |
|
655 |
static GIOChannel *io_channel_from_socket(int fd) |
656 |
{ |
657 |
GIOChannel *chan; |
658 |
|
659 |
if (fd == -1) { |
660 |
return NULL; |
661 |
} |
662 |
|
663 |
#ifdef _WIN32
|
664 |
chan = g_io_channel_win32_new_socket(fd); |
665 |
#else
|
666 |
chan = g_io_channel_unix_new(fd); |
667 |
#endif
|
668 |
|
669 |
g_io_channel_set_encoding(chan, NULL, NULL); |
670 |
g_io_channel_set_buffered(chan, FALSE); |
671 |
|
672 |
return chan;
|
673 |
} |
674 |
|
675 |
static int io_channel_send_all(GIOChannel *fd, const void *_buf, int len1) |
676 |
{ |
677 |
GIOStatus status; |
678 |
gsize bytes_written; |
679 |
int len;
|
680 |
const uint8_t *buf = _buf;
|
681 |
|
682 |
len = len1; |
683 |
while (len > 0) { |
684 |
status = g_io_channel_write_chars(fd, (const gchar *)buf, len,
|
685 |
&bytes_written, NULL);
|
686 |
if (status != G_IO_STATUS_NORMAL) {
|
687 |
if (status == G_IO_STATUS_AGAIN) {
|
688 |
errno = EAGAIN; |
689 |
return -1; |
690 |
} else {
|
691 |
errno = EINVAL; |
692 |
return -1; |
693 |
} |
694 |
} else if (status == G_IO_STATUS_EOF) { |
695 |
break;
|
696 |
} else {
|
697 |
buf += bytes_written; |
698 |
len -= bytes_written; |
699 |
} |
700 |
} |
701 |
return len1 - len;
|
702 |
} |
703 |
|
704 |
typedef struct FDCharDriver { |
705 |
CharDriverState *chr; |
706 |
GIOChannel *fd_in, *fd_out; |
707 |
guint fd_in_tag; |
708 |
int max_size;
|
709 |
QTAILQ_ENTRY(FDCharDriver) node; |
710 |
} FDCharDriver; |
711 |
|
712 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
713 |
{ |
714 |
FDCharDriver *s = chr->opaque; |
715 |
|
716 |
return io_channel_send_all(s->fd_out, buf, len);
|
717 |
} |
718 |
|
719 |
static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
720 |
{ |
721 |
CharDriverState *chr = opaque; |
722 |
FDCharDriver *s = chr->opaque; |
723 |
int len;
|
724 |
uint8_t buf[READ_BUF_LEN]; |
725 |
GIOStatus status; |
726 |
gsize bytes_read; |
727 |
|
728 |
len = sizeof(buf);
|
729 |
if (len > s->max_size) {
|
730 |
len = s->max_size; |
731 |
} |
732 |
if (len == 0) { |
733 |
return FALSE;
|
734 |
} |
735 |
|
736 |
status = g_io_channel_read_chars(chan, (gchar *)buf, |
737 |
len, &bytes_read, NULL);
|
738 |
if (status == G_IO_STATUS_EOF) {
|
739 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
740 |
return FALSE;
|
741 |
} |
742 |
if (status == G_IO_STATUS_NORMAL) {
|
743 |
qemu_chr_be_write(chr, buf, bytes_read); |
744 |
} |
745 |
|
746 |
return TRUE;
|
747 |
} |
748 |
|
749 |
static int fd_chr_read_poll(void *opaque) |
750 |
{ |
751 |
CharDriverState *chr = opaque; |
752 |
FDCharDriver *s = chr->opaque; |
753 |
|
754 |
s->max_size = qemu_chr_be_can_write(chr); |
755 |
return s->max_size;
|
756 |
} |
757 |
|
758 |
static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
|
759 |
{ |
760 |
FDCharDriver *s = chr->opaque; |
761 |
return g_io_create_watch(s->fd_out, cond);
|
762 |
} |
763 |
|
764 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
765 |
{ |
766 |
FDCharDriver *s = chr->opaque; |
767 |
|
768 |
if (s->fd_in_tag) {
|
769 |
g_source_remove(s->fd_in_tag); |
770 |
} |
771 |
|
772 |
if (s->fd_in) {
|
773 |
s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr); |
774 |
} |
775 |
} |
776 |
|
777 |
static void fd_chr_close(struct CharDriverState *chr) |
778 |
{ |
779 |
FDCharDriver *s = chr->opaque; |
780 |
|
781 |
if (s->fd_in_tag) {
|
782 |
g_source_remove(s->fd_in_tag); |
783 |
s->fd_in_tag = 0;
|
784 |
} |
785 |
|
786 |
if (s->fd_in) {
|
787 |
g_io_channel_unref(s->fd_in); |
788 |
} |
789 |
if (s->fd_out) {
|
790 |
g_io_channel_unref(s->fd_out); |
791 |
} |
792 |
|
793 |
g_free(s); |
794 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
795 |
} |
796 |
|
797 |
/* open a character device to a unix fd */
|
798 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
799 |
{ |
800 |
CharDriverState *chr; |
801 |
FDCharDriver *s; |
802 |
|
803 |
chr = g_malloc0(sizeof(CharDriverState));
|
804 |
s = g_malloc0(sizeof(FDCharDriver));
|
805 |
s->fd_in = io_channel_from_fd(fd_in); |
806 |
s->fd_out = io_channel_from_fd(fd_out); |
807 |
fcntl(fd_out, F_SETFL, O_NONBLOCK); |
808 |
s->chr = chr; |
809 |
chr->opaque = s; |
810 |
chr->chr_add_watch = fd_chr_add_watch; |
811 |
chr->chr_write = fd_chr_write; |
812 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
813 |
chr->chr_close = fd_chr_close; |
814 |
|
815 |
qemu_chr_generic_open(chr); |
816 |
|
817 |
return chr;
|
818 |
} |
819 |
|
820 |
static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
|
821 |
{ |
822 |
int fd_out;
|
823 |
|
824 |
TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
|
825 |
O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
826 |
if (fd_out < 0) { |
827 |
return NULL; |
828 |
} |
829 |
return qemu_chr_open_fd(-1, fd_out); |
830 |
} |
831 |
|
832 |
static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
|
833 |
{ |
834 |
int fd_in, fd_out;
|
835 |
char filename_in[256], filename_out[256]; |
836 |
const char *filename = qemu_opt_get(opts, "path"); |
837 |
|
838 |
if (filename == NULL) { |
839 |
fprintf(stderr, "chardev: pipe: no filename given\n");
|
840 |
return NULL; |
841 |
} |
842 |
|
843 |
snprintf(filename_in, 256, "%s.in", filename); |
844 |
snprintf(filename_out, 256, "%s.out", filename); |
845 |
TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY)); |
846 |
TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY)); |
847 |
if (fd_in < 0 || fd_out < 0) { |
848 |
if (fd_in >= 0) |
849 |
close(fd_in); |
850 |
if (fd_out >= 0) |
851 |
close(fd_out); |
852 |
TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY)); |
853 |
if (fd_in < 0) { |
854 |
return NULL; |
855 |
} |
856 |
} |
857 |
return qemu_chr_open_fd(fd_in, fd_out);
|
858 |
} |
859 |
|
860 |
/* init terminal so that we can grab keys */
|
861 |
static struct termios oldtty; |
862 |
static int old_fd0_flags; |
863 |
static bool stdio_allow_signal; |
864 |
|
865 |
static void term_exit(void) |
866 |
{ |
867 |
tcsetattr (0, TCSANOW, &oldtty);
|
868 |
fcntl(0, F_SETFL, old_fd0_flags);
|
869 |
} |
870 |
|
871 |
static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo) |
872 |
{ |
873 |
struct termios tty;
|
874 |
|
875 |
tty = oldtty; |
876 |
if (!echo) {
|
877 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
878 |
|INLCR|IGNCR|ICRNL|IXON); |
879 |
tty.c_oflag |= OPOST; |
880 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
881 |
tty.c_cflag &= ~(CSIZE|PARENB); |
882 |
tty.c_cflag |= CS8; |
883 |
tty.c_cc[VMIN] = 1;
|
884 |
tty.c_cc[VTIME] = 0;
|
885 |
} |
886 |
/* if graphical mode, we allow Ctrl-C handling */
|
887 |
if (!stdio_allow_signal)
|
888 |
tty.c_lflag &= ~ISIG; |
889 |
|
890 |
tcsetattr (0, TCSANOW, &tty);
|
891 |
} |
892 |
|
893 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
894 |
{ |
895 |
term_exit(); |
896 |
fd_chr_close(chr); |
897 |
} |
898 |
|
899 |
static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
|
900 |
{ |
901 |
CharDriverState *chr; |
902 |
|
903 |
if (is_daemonized()) {
|
904 |
error_report("cannot use stdio with -daemonize");
|
905 |
return NULL; |
906 |
} |
907 |
old_fd0_flags = fcntl(0, F_GETFL);
|
908 |
tcgetattr (0, &oldtty);
|
909 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
910 |
atexit(term_exit); |
911 |
|
912 |
chr = qemu_chr_open_fd(0, 1); |
913 |
chr->chr_close = qemu_chr_close_stdio; |
914 |
chr->chr_set_echo = qemu_chr_set_echo_stdio; |
915 |
stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
|
916 |
display_type != DT_NOGRAPHIC); |
917 |
qemu_chr_fe_set_echo(chr, false);
|
918 |
|
919 |
return chr;
|
920 |
} |
921 |
|
922 |
#ifdef __sun__
|
923 |
/* Once Solaris has openpty(), this is going to be removed. */
|
924 |
static int openpty(int *amaster, int *aslave, char *name, |
925 |
struct termios *termp, struct winsize *winp) |
926 |
{ |
927 |
const char *slave; |
928 |
int mfd = -1, sfd = -1; |
929 |
|
930 |
*amaster = *aslave = -1;
|
931 |
|
932 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
933 |
if (mfd < 0) |
934 |
goto err;
|
935 |
|
936 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
937 |
goto err;
|
938 |
|
939 |
if ((slave = ptsname(mfd)) == NULL) |
940 |
goto err;
|
941 |
|
942 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
943 |
goto err;
|
944 |
|
945 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
946 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
947 |
goto err;
|
948 |
|
949 |
if (amaster)
|
950 |
*amaster = mfd; |
951 |
if (aslave)
|
952 |
*aslave = sfd; |
953 |
if (winp)
|
954 |
ioctl(sfd, TIOCSWINSZ, winp); |
955 |
|
956 |
return 0; |
957 |
|
958 |
err:
|
959 |
if (sfd != -1) |
960 |
close(sfd); |
961 |
close(mfd); |
962 |
return -1; |
963 |
} |
964 |
|
965 |
static void cfmakeraw (struct termios *termios_p) |
966 |
{ |
967 |
termios_p->c_iflag &= |
968 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
969 |
termios_p->c_oflag &= ~OPOST; |
970 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
971 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
972 |
termios_p->c_cflag |= CS8; |
973 |
|
974 |
termios_p->c_cc[VMIN] = 0;
|
975 |
termios_p->c_cc[VTIME] = 0;
|
976 |
} |
977 |
#endif
|
978 |
|
979 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
980 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ |
981 |
|| defined(__GLIBC__) |
982 |
|
983 |
#define HAVE_CHARDEV_TTY 1 |
984 |
|
985 |
typedef struct { |
986 |
GIOChannel *fd; |
987 |
guint fd_tag; |
988 |
int connected;
|
989 |
int polling;
|
990 |
int read_bytes;
|
991 |
guint timer_tag; |
992 |
} PtyCharDriver; |
993 |
|
994 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
995 |
static void pty_chr_state(CharDriverState *chr, int connected); |
996 |
|
997 |
static gboolean pty_chr_timer(gpointer opaque)
|
998 |
{ |
999 |
struct CharDriverState *chr = opaque;
|
1000 |
PtyCharDriver *s = chr->opaque; |
1001 |
|
1002 |
if (s->connected) {
|
1003 |
goto out;
|
1004 |
} |
1005 |
if (s->polling) {
|
1006 |
/* If we arrive here without polling being cleared due
|
1007 |
* read returning -EIO, then we are (re-)connected */
|
1008 |
pty_chr_state(chr, 1);
|
1009 |
goto out;
|
1010 |
} |
1011 |
|
1012 |
/* Next poll ... */
|
1013 |
pty_chr_update_read_handler(chr); |
1014 |
|
1015 |
out:
|
1016 |
return FALSE;
|
1017 |
} |
1018 |
|
1019 |
static void pty_chr_rearm_timer(CharDriverState *chr, int ms) |
1020 |
{ |
1021 |
PtyCharDriver *s = chr->opaque; |
1022 |
|
1023 |
if (s->timer_tag) {
|
1024 |
g_source_remove(s->timer_tag); |
1025 |
s->timer_tag = 0;
|
1026 |
} |
1027 |
|
1028 |
if (ms == 1000) { |
1029 |
s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
|
1030 |
} else {
|
1031 |
s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr); |
1032 |
} |
1033 |
} |
1034 |
|
1035 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
1036 |
{ |
1037 |
PtyCharDriver *s = chr->opaque; |
1038 |
|
1039 |
if (!s->connected) {
|
1040 |
/* guest sends data, check for (re-)connect */
|
1041 |
pty_chr_update_read_handler(chr); |
1042 |
return 0; |
1043 |
} |
1044 |
return io_channel_send_all(s->fd, buf, len);
|
1045 |
} |
1046 |
|
1047 |
static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
|
1048 |
{ |
1049 |
PtyCharDriver *s = chr->opaque; |
1050 |
return g_io_create_watch(s->fd, cond);
|
1051 |
} |
1052 |
|
1053 |
static int pty_chr_read_poll(void *opaque) |
1054 |
{ |
1055 |
CharDriverState *chr = opaque; |
1056 |
PtyCharDriver *s = chr->opaque; |
1057 |
|
1058 |
s->read_bytes = qemu_chr_be_can_write(chr); |
1059 |
return s->read_bytes;
|
1060 |
} |
1061 |
|
1062 |
static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
1063 |
{ |
1064 |
CharDriverState *chr = opaque; |
1065 |
PtyCharDriver *s = chr->opaque; |
1066 |
gsize size, len; |
1067 |
uint8_t buf[READ_BUF_LEN]; |
1068 |
GIOStatus status; |
1069 |
|
1070 |
len = sizeof(buf);
|
1071 |
if (len > s->read_bytes)
|
1072 |
len = s->read_bytes; |
1073 |
if (len == 0) |
1074 |
return FALSE;
|
1075 |
status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
|
1076 |
if (status != G_IO_STATUS_NORMAL) {
|
1077 |
pty_chr_state(chr, 0);
|
1078 |
return FALSE;
|
1079 |
} else {
|
1080 |
pty_chr_state(chr, 1);
|
1081 |
qemu_chr_be_write(chr, buf, size); |
1082 |
} |
1083 |
return TRUE;
|
1084 |
} |
1085 |
|
1086 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
1087 |
{ |
1088 |
PtyCharDriver *s = chr->opaque; |
1089 |
|
1090 |
if (s->fd_tag) {
|
1091 |
g_source_remove(s->fd_tag); |
1092 |
} |
1093 |
|
1094 |
s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr); |
1095 |
s->polling = 1;
|
1096 |
/*
|
1097 |
* Short timeout here: just need wait long enougth that qemu makes
|
1098 |
* it through the poll loop once. When reconnected we want a
|
1099 |
* short timeout so we notice it almost instantly. Otherwise
|
1100 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
1101 |
* timeout to the normal (much longer) poll interval before the
|
1102 |
* timer triggers.
|
1103 |
*/
|
1104 |
pty_chr_rearm_timer(chr, 10);
|
1105 |
} |
1106 |
|
1107 |
static void pty_chr_state(CharDriverState *chr, int connected) |
1108 |
{ |
1109 |
PtyCharDriver *s = chr->opaque; |
1110 |
|
1111 |
if (!connected) {
|
1112 |
g_source_remove(s->fd_tag); |
1113 |
s->fd_tag = 0;
|
1114 |
s->connected = 0;
|
1115 |
s->polling = 0;
|
1116 |
/* (re-)connect poll interval for idle guests: once per second.
|
1117 |
* We check more frequently in case the guests sends data to
|
1118 |
* the virtual device linked to our pty. */
|
1119 |
pty_chr_rearm_timer(chr, 1000);
|
1120 |
} else {
|
1121 |
if (!s->connected)
|
1122 |
qemu_chr_generic_open(chr); |
1123 |
s->connected = 1;
|
1124 |
} |
1125 |
} |
1126 |
|
1127 |
|
1128 |
static void pty_chr_close(struct CharDriverState *chr) |
1129 |
{ |
1130 |
PtyCharDriver *s = chr->opaque; |
1131 |
int fd;
|
1132 |
|
1133 |
if (s->fd_tag) {
|
1134 |
g_source_remove(s->fd_tag); |
1135 |
} |
1136 |
fd = g_io_channel_unix_get_fd(s->fd); |
1137 |
g_io_channel_unref(s->fd); |
1138 |
close(fd); |
1139 |
if (s->timer_tag) {
|
1140 |
g_source_remove(s->timer_tag); |
1141 |
} |
1142 |
g_free(s); |
1143 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
1144 |
} |
1145 |
|
1146 |
static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
|
1147 |
{ |
1148 |
CharDriverState *chr; |
1149 |
PtyCharDriver *s; |
1150 |
struct termios tty;
|
1151 |
const char *label; |
1152 |
int master_fd, slave_fd, len;
|
1153 |
#if defined(__OpenBSD__) || defined(__DragonFly__)
|
1154 |
char pty_name[PATH_MAX];
|
1155 |
#define q_ptsname(x) pty_name
|
1156 |
#else
|
1157 |
char *pty_name = NULL; |
1158 |
#define q_ptsname(x) ptsname(x)
|
1159 |
#endif
|
1160 |
|
1161 |
if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
1162 |
return NULL; |
1163 |
} |
1164 |
|
1165 |
/* Set raw attributes on the pty. */
|
1166 |
tcgetattr(slave_fd, &tty); |
1167 |
cfmakeraw(&tty); |
1168 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
1169 |
close(slave_fd); |
1170 |
|
1171 |
chr = g_malloc0(sizeof(CharDriverState));
|
1172 |
|
1173 |
len = strlen(q_ptsname(master_fd)) + 5;
|
1174 |
chr->filename = g_malloc(len); |
1175 |
snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
|
1176 |
qemu_opt_set(opts, "path", q_ptsname(master_fd));
|
1177 |
|
1178 |
label = qemu_opts_id(opts); |
1179 |
fprintf(stderr, "char device redirected to %s%s%s%s\n",
|
1180 |
q_ptsname(master_fd), |
1181 |
label ? " (label " : "", |
1182 |
label ? label : "",
|
1183 |
label ? ")" : ""); |
1184 |
|
1185 |
s = g_malloc0(sizeof(PtyCharDriver));
|
1186 |
chr->opaque = s; |
1187 |
chr->chr_write = pty_chr_write; |
1188 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
1189 |
chr->chr_close = pty_chr_close; |
1190 |
chr->chr_add_watch = pty_chr_add_watch; |
1191 |
|
1192 |
s->fd = io_channel_from_fd(master_fd); |
1193 |
s->timer_tag = 0;
|
1194 |
|
1195 |
return chr;
|
1196 |
} |
1197 |
|
1198 |
static void tty_serial_init(int fd, int speed, |
1199 |
int parity, int data_bits, int stop_bits) |
1200 |
{ |
1201 |
struct termios tty;
|
1202 |
speed_t spd; |
1203 |
|
1204 |
#if 0
|
1205 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
1206 |
speed, parity, data_bits, stop_bits);
|
1207 |
#endif
|
1208 |
tcgetattr (fd, &tty); |
1209 |
|
1210 |
#define check_speed(val) if (speed <= val) { spd = B##val; break; } |
1211 |
speed = speed * 10 / 11; |
1212 |
do {
|
1213 |
check_speed(50);
|
1214 |
check_speed(75);
|
1215 |
check_speed(110);
|
1216 |
check_speed(134);
|
1217 |
check_speed(150);
|
1218 |
check_speed(200);
|
1219 |
check_speed(300);
|
1220 |
check_speed(600);
|
1221 |
check_speed(1200);
|
1222 |
check_speed(1800);
|
1223 |
check_speed(2400);
|
1224 |
check_speed(4800);
|
1225 |
check_speed(9600);
|
1226 |
check_speed(19200);
|
1227 |
check_speed(38400);
|
1228 |
/* Non-Posix values follow. They may be unsupported on some systems. */
|
1229 |
check_speed(57600);
|
1230 |
check_speed(115200);
|
1231 |
#ifdef B230400
|
1232 |
check_speed(230400);
|
1233 |
#endif
|
1234 |
#ifdef B460800
|
1235 |
check_speed(460800);
|
1236 |
#endif
|
1237 |
#ifdef B500000
|
1238 |
check_speed(500000);
|
1239 |
#endif
|
1240 |
#ifdef B576000
|
1241 |
check_speed(576000);
|
1242 |
#endif
|
1243 |
#ifdef B921600
|
1244 |
check_speed(921600);
|
1245 |
#endif
|
1246 |
#ifdef B1000000
|
1247 |
check_speed(1000000);
|
1248 |
#endif
|
1249 |
#ifdef B1152000
|
1250 |
check_speed(1152000);
|
1251 |
#endif
|
1252 |
#ifdef B1500000
|
1253 |
check_speed(1500000);
|
1254 |
#endif
|
1255 |
#ifdef B2000000
|
1256 |
check_speed(2000000);
|
1257 |
#endif
|
1258 |
#ifdef B2500000
|
1259 |
check_speed(2500000);
|
1260 |
#endif
|
1261 |
#ifdef B3000000
|
1262 |
check_speed(3000000);
|
1263 |
#endif
|
1264 |
#ifdef B3500000
|
1265 |
check_speed(3500000);
|
1266 |
#endif
|
1267 |
#ifdef B4000000
|
1268 |
check_speed(4000000);
|
1269 |
#endif
|
1270 |
spd = B115200; |
1271 |
} while (0); |
1272 |
|
1273 |
cfsetispeed(&tty, spd); |
1274 |
cfsetospeed(&tty, spd); |
1275 |
|
1276 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
1277 |
|INLCR|IGNCR|ICRNL|IXON); |
1278 |
tty.c_oflag |= OPOST; |
1279 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
1280 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
1281 |
switch(data_bits) {
|
1282 |
default:
|
1283 |
case 8: |
1284 |
tty.c_cflag |= CS8; |
1285 |
break;
|
1286 |
case 7: |
1287 |
tty.c_cflag |= CS7; |
1288 |
break;
|
1289 |
case 6: |
1290 |
tty.c_cflag |= CS6; |
1291 |
break;
|
1292 |
case 5: |
1293 |
tty.c_cflag |= CS5; |
1294 |
break;
|
1295 |
} |
1296 |
switch(parity) {
|
1297 |
default:
|
1298 |
case 'N': |
1299 |
break;
|
1300 |
case 'E': |
1301 |
tty.c_cflag |= PARENB; |
1302 |
break;
|
1303 |
case 'O': |
1304 |
tty.c_cflag |= PARENB | PARODD; |
1305 |
break;
|
1306 |
} |
1307 |
if (stop_bits == 2) |
1308 |
tty.c_cflag |= CSTOPB; |
1309 |
|
1310 |
tcsetattr (fd, TCSANOW, &tty); |
1311 |
} |
1312 |
|
1313 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
1314 |
{ |
1315 |
FDCharDriver *s = chr->opaque; |
1316 |
|
1317 |
switch(cmd) {
|
1318 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
1319 |
{ |
1320 |
QEMUSerialSetParams *ssp = arg; |
1321 |
tty_serial_init(g_io_channel_unix_get_fd(s->fd_in), |
1322 |
ssp->speed, ssp->parity, |
1323 |
ssp->data_bits, ssp->stop_bits); |
1324 |
} |
1325 |
break;
|
1326 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
1327 |
{ |
1328 |
int enable = *(int *)arg; |
1329 |
if (enable) {
|
1330 |
tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
|
1331 |
} |
1332 |
} |
1333 |
break;
|
1334 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
1335 |
{ |
1336 |
int sarg = 0; |
1337 |
int *targ = (int *)arg; |
1338 |
ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg); |
1339 |
*targ = 0;
|
1340 |
if (sarg & TIOCM_CTS)
|
1341 |
*targ |= CHR_TIOCM_CTS; |
1342 |
if (sarg & TIOCM_CAR)
|
1343 |
*targ |= CHR_TIOCM_CAR; |
1344 |
if (sarg & TIOCM_DSR)
|
1345 |
*targ |= CHR_TIOCM_DSR; |
1346 |
if (sarg & TIOCM_RI)
|
1347 |
*targ |= CHR_TIOCM_RI; |
1348 |
if (sarg & TIOCM_DTR)
|
1349 |
*targ |= CHR_TIOCM_DTR; |
1350 |
if (sarg & TIOCM_RTS)
|
1351 |
*targ |= CHR_TIOCM_RTS; |
1352 |
} |
1353 |
break;
|
1354 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
1355 |
{ |
1356 |
int sarg = *(int *)arg; |
1357 |
int targ = 0; |
1358 |
ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ); |
1359 |
targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR |
1360 |
| CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); |
1361 |
if (sarg & CHR_TIOCM_CTS)
|
1362 |
targ |= TIOCM_CTS; |
1363 |
if (sarg & CHR_TIOCM_CAR)
|
1364 |
targ |= TIOCM_CAR; |
1365 |
if (sarg & CHR_TIOCM_DSR)
|
1366 |
targ |= TIOCM_DSR; |
1367 |
if (sarg & CHR_TIOCM_RI)
|
1368 |
targ |= TIOCM_RI; |
1369 |
if (sarg & CHR_TIOCM_DTR)
|
1370 |
targ |= TIOCM_DTR; |
1371 |
if (sarg & CHR_TIOCM_RTS)
|
1372 |
targ |= TIOCM_RTS; |
1373 |
ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ); |
1374 |
} |
1375 |
break;
|
1376 |
default:
|
1377 |
return -ENOTSUP;
|
1378 |
} |
1379 |
return 0; |
1380 |
} |
1381 |
|
1382 |
static void qemu_chr_close_tty(CharDriverState *chr) |
1383 |
{ |
1384 |
FDCharDriver *s = chr->opaque; |
1385 |
int fd = -1; |
1386 |
|
1387 |
if (s) {
|
1388 |
fd = g_io_channel_unix_get_fd(s->fd_in); |
1389 |
} |
1390 |
|
1391 |
fd_chr_close(chr); |
1392 |
|
1393 |
if (fd >= 0) { |
1394 |
close(fd); |
1395 |
} |
1396 |
} |
1397 |
|
1398 |
static CharDriverState *qemu_chr_open_tty_fd(int fd) |
1399 |
{ |
1400 |
CharDriverState *chr; |
1401 |
|
1402 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
1403 |
chr = qemu_chr_open_fd(fd, fd); |
1404 |
chr->chr_ioctl = tty_serial_ioctl; |
1405 |
chr->chr_close = qemu_chr_close_tty; |
1406 |
return chr;
|
1407 |
} |
1408 |
|
1409 |
static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
|
1410 |
{ |
1411 |
const char *filename = qemu_opt_get(opts, "path"); |
1412 |
int fd;
|
1413 |
|
1414 |
TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK)); |
1415 |
if (fd < 0) { |
1416 |
return NULL; |
1417 |
} |
1418 |
return qemu_chr_open_tty_fd(fd);
|
1419 |
} |
1420 |
#endif /* __linux__ || __sun__ */ |
1421 |
|
1422 |
#if defined(__linux__)
|
1423 |
|
1424 |
#define HAVE_CHARDEV_PARPORT 1 |
1425 |
|
1426 |
typedef struct { |
1427 |
int fd;
|
1428 |
int mode;
|
1429 |
} ParallelCharDriver; |
1430 |
|
1431 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
1432 |
{ |
1433 |
if (s->mode != mode) {
|
1434 |
int m = mode;
|
1435 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
1436 |
return 0; |
1437 |
s->mode = mode; |
1438 |
} |
1439 |
return 1; |
1440 |
} |
1441 |
|
1442 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1443 |
{ |
1444 |
ParallelCharDriver *drv = chr->opaque; |
1445 |
int fd = drv->fd;
|
1446 |
uint8_t b; |
1447 |
|
1448 |
switch(cmd) {
|
1449 |
case CHR_IOCTL_PP_READ_DATA:
|
1450 |
if (ioctl(fd, PPRDATA, &b) < 0) |
1451 |
return -ENOTSUP;
|
1452 |
*(uint8_t *)arg = b; |
1453 |
break;
|
1454 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1455 |
b = *(uint8_t *)arg; |
1456 |
if (ioctl(fd, PPWDATA, &b) < 0) |
1457 |
return -ENOTSUP;
|
1458 |
break;
|
1459 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1460 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
1461 |
return -ENOTSUP;
|
1462 |
/* Linux gives only the lowest bits, and no way to know data
|
1463 |
direction! For better compatibility set the fixed upper
|
1464 |
bits. */
|
1465 |
*(uint8_t *)arg = b | 0xc0;
|
1466 |
break;
|
1467 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1468 |
b = *(uint8_t *)arg; |
1469 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
1470 |
return -ENOTSUP;
|
1471 |
break;
|
1472 |
case CHR_IOCTL_PP_READ_STATUS:
|
1473 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
1474 |
return -ENOTSUP;
|
1475 |
*(uint8_t *)arg = b; |
1476 |
break;
|
1477 |
case CHR_IOCTL_PP_DATA_DIR:
|
1478 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
1479 |
return -ENOTSUP;
|
1480 |
break;
|
1481 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
1482 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1483 |
struct ParallelIOArg *parg = arg;
|
1484 |
int n = read(fd, parg->buffer, parg->count);
|
1485 |
if (n != parg->count) {
|
1486 |
return -EIO;
|
1487 |
} |
1488 |
} |
1489 |
break;
|
1490 |
case CHR_IOCTL_PP_EPP_READ:
|
1491 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1492 |
struct ParallelIOArg *parg = arg;
|
1493 |
int n = read(fd, parg->buffer, parg->count);
|
1494 |
if (n != parg->count) {
|
1495 |
return -EIO;
|
1496 |
} |
1497 |
} |
1498 |
break;
|
1499 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
1500 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1501 |
struct ParallelIOArg *parg = arg;
|
1502 |
int n = write(fd, parg->buffer, parg->count);
|
1503 |
if (n != parg->count) {
|
1504 |
return -EIO;
|
1505 |
} |
1506 |
} |
1507 |
break;
|
1508 |
case CHR_IOCTL_PP_EPP_WRITE:
|
1509 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1510 |
struct ParallelIOArg *parg = arg;
|
1511 |
int n = write(fd, parg->buffer, parg->count);
|
1512 |
if (n != parg->count) {
|
1513 |
return -EIO;
|
1514 |
} |
1515 |
} |
1516 |
break;
|
1517 |
default:
|
1518 |
return -ENOTSUP;
|
1519 |
} |
1520 |
return 0; |
1521 |
} |
1522 |
|
1523 |
static void pp_close(CharDriverState *chr) |
1524 |
{ |
1525 |
ParallelCharDriver *drv = chr->opaque; |
1526 |
int fd = drv->fd;
|
1527 |
|
1528 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
1529 |
ioctl(fd, PPRELEASE); |
1530 |
close(fd); |
1531 |
g_free(drv); |
1532 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
1533 |
} |
1534 |
|
1535 |
static CharDriverState *qemu_chr_open_pp_fd(int fd) |
1536 |
{ |
1537 |
CharDriverState *chr; |
1538 |
ParallelCharDriver *drv; |
1539 |
|
1540 |
if (ioctl(fd, PPCLAIM) < 0) { |
1541 |
close(fd); |
1542 |
return NULL; |
1543 |
} |
1544 |
|
1545 |
drv = g_malloc0(sizeof(ParallelCharDriver));
|
1546 |
drv->fd = fd; |
1547 |
drv->mode = IEEE1284_MODE_COMPAT; |
1548 |
|
1549 |
chr = g_malloc0(sizeof(CharDriverState));
|
1550 |
chr->chr_write = null_chr_write; |
1551 |
chr->chr_ioctl = pp_ioctl; |
1552 |
chr->chr_close = pp_close; |
1553 |
chr->opaque = drv; |
1554 |
|
1555 |
qemu_chr_generic_open(chr); |
1556 |
|
1557 |
return chr;
|
1558 |
} |
1559 |
#endif /* __linux__ */ |
1560 |
|
1561 |
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
|
1562 |
|
1563 |
#define HAVE_CHARDEV_PARPORT 1 |
1564 |
|
1565 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1566 |
{ |
1567 |
int fd = (int)(intptr_t)chr->opaque; |
1568 |
uint8_t b; |
1569 |
|
1570 |
switch(cmd) {
|
1571 |
case CHR_IOCTL_PP_READ_DATA:
|
1572 |
if (ioctl(fd, PPIGDATA, &b) < 0) |
1573 |
return -ENOTSUP;
|
1574 |
*(uint8_t *)arg = b; |
1575 |
break;
|
1576 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1577 |
b = *(uint8_t *)arg; |
1578 |
if (ioctl(fd, PPISDATA, &b) < 0) |
1579 |
return -ENOTSUP;
|
1580 |
break;
|
1581 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1582 |
if (ioctl(fd, PPIGCTRL, &b) < 0) |
1583 |
return -ENOTSUP;
|
1584 |
*(uint8_t *)arg = b; |
1585 |
break;
|
1586 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1587 |
b = *(uint8_t *)arg; |
1588 |
if (ioctl(fd, PPISCTRL, &b) < 0) |
1589 |
return -ENOTSUP;
|
1590 |
break;
|
1591 |
case CHR_IOCTL_PP_READ_STATUS:
|
1592 |
if (ioctl(fd, PPIGSTATUS, &b) < 0) |
1593 |
return -ENOTSUP;
|
1594 |
*(uint8_t *)arg = b; |
1595 |
break;
|
1596 |
default:
|
1597 |
return -ENOTSUP;
|
1598 |
} |
1599 |
return 0; |
1600 |
} |
1601 |
|
1602 |
static CharDriverState *qemu_chr_open_pp_fd(int fd) |
1603 |
{ |
1604 |
CharDriverState *chr; |
1605 |
|
1606 |
chr = g_malloc0(sizeof(CharDriverState));
|
1607 |
chr->opaque = (void *)(intptr_t)fd;
|
1608 |
chr->chr_write = null_chr_write; |
1609 |
chr->chr_ioctl = pp_ioctl; |
1610 |
return chr;
|
1611 |
} |
1612 |
#endif
|
1613 |
|
1614 |
#else /* _WIN32 */ |
1615 |
|
1616 |
typedef struct { |
1617 |
int max_size;
|
1618 |
HANDLE hcom, hrecv, hsend; |
1619 |
OVERLAPPED orecv, osend; |
1620 |
BOOL fpipe; |
1621 |
DWORD len; |
1622 |
} WinCharState; |
1623 |
|
1624 |
typedef struct { |
1625 |
HANDLE hStdIn; |
1626 |
HANDLE hInputReadyEvent; |
1627 |
HANDLE hInputDoneEvent; |
1628 |
HANDLE hInputThread; |
1629 |
uint8_t win_stdio_buf; |
1630 |
} WinStdioCharState; |
1631 |
|
1632 |
#define NSENDBUF 2048 |
1633 |
#define NRECVBUF 2048 |
1634 |
#define MAXCONNECT 1 |
1635 |
#define NTIMEOUT 5000 |
1636 |
|
1637 |
static int win_chr_poll(void *opaque); |
1638 |
static int win_chr_pipe_poll(void *opaque); |
1639 |
|
1640 |
static void win_chr_close(CharDriverState *chr) |
1641 |
{ |
1642 |
WinCharState *s = chr->opaque; |
1643 |
|
1644 |
if (s->hsend) {
|
1645 |
CloseHandle(s->hsend); |
1646 |
s->hsend = NULL;
|
1647 |
} |
1648 |
if (s->hrecv) {
|
1649 |
CloseHandle(s->hrecv); |
1650 |
s->hrecv = NULL;
|
1651 |
} |
1652 |
if (s->hcom) {
|
1653 |
CloseHandle(s->hcom); |
1654 |
s->hcom = NULL;
|
1655 |
} |
1656 |
if (s->fpipe)
|
1657 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
1658 |
else
|
1659 |
qemu_del_polling_cb(win_chr_poll, chr); |
1660 |
|
1661 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
1662 |
} |
1663 |
|
1664 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
1665 |
{ |
1666 |
WinCharState *s = chr->opaque; |
1667 |
COMMCONFIG comcfg; |
1668 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; |
1669 |
COMSTAT comstat; |
1670 |
DWORD size; |
1671 |
DWORD err; |
1672 |
|
1673 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1674 |
if (!s->hsend) {
|
1675 |
fprintf(stderr, "Failed CreateEvent\n");
|
1676 |
goto fail;
|
1677 |
} |
1678 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1679 |
if (!s->hrecv) {
|
1680 |
fprintf(stderr, "Failed CreateEvent\n");
|
1681 |
goto fail;
|
1682 |
} |
1683 |
|
1684 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
1685 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
1686 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1687 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
1688 |
s->hcom = NULL;
|
1689 |
goto fail;
|
1690 |
} |
1691 |
|
1692 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
1693 |
fprintf(stderr, "Failed SetupComm\n");
|
1694 |
goto fail;
|
1695 |
} |
1696 |
|
1697 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
1698 |
size = sizeof(COMMCONFIG);
|
1699 |
GetDefaultCommConfig(filename, &comcfg, &size); |
1700 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
1701 |
CommConfigDialog(filename, NULL, &comcfg);
|
1702 |
|
1703 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
1704 |
fprintf(stderr, "Failed SetCommState\n");
|
1705 |
goto fail;
|
1706 |
} |
1707 |
|
1708 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
1709 |
fprintf(stderr, "Failed SetCommMask\n");
|
1710 |
goto fail;
|
1711 |
} |
1712 |
|
1713 |
cto.ReadIntervalTimeout = MAXDWORD; |
1714 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
1715 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
1716 |
goto fail;
|
1717 |
} |
1718 |
|
1719 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
1720 |
fprintf(stderr, "Failed ClearCommError\n");
|
1721 |
goto fail;
|
1722 |
} |
1723 |
qemu_add_polling_cb(win_chr_poll, chr); |
1724 |
return 0; |
1725 |
|
1726 |
fail:
|
1727 |
win_chr_close(chr); |
1728 |
return -1; |
1729 |
} |
1730 |
|
1731 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
1732 |
{ |
1733 |
WinCharState *s = chr->opaque; |
1734 |
DWORD len, ret, size, err; |
1735 |
|
1736 |
len = len1; |
1737 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
1738 |
s->osend.hEvent = s->hsend; |
1739 |
while (len > 0) { |
1740 |
if (s->hsend)
|
1741 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
1742 |
else
|
1743 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
1744 |
if (!ret) {
|
1745 |
err = GetLastError(); |
1746 |
if (err == ERROR_IO_PENDING) {
|
1747 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
1748 |
if (ret) {
|
1749 |
buf += size; |
1750 |
len -= size; |
1751 |
} else {
|
1752 |
break;
|
1753 |
} |
1754 |
} else {
|
1755 |
break;
|
1756 |
} |
1757 |
} else {
|
1758 |
buf += size; |
1759 |
len -= size; |
1760 |
} |
1761 |
} |
1762 |
return len1 - len;
|
1763 |
} |
1764 |
|
1765 |
static int win_chr_read_poll(CharDriverState *chr) |
1766 |
{ |
1767 |
WinCharState *s = chr->opaque; |
1768 |
|
1769 |
s->max_size = qemu_chr_be_can_write(chr); |
1770 |
return s->max_size;
|
1771 |
} |
1772 |
|
1773 |
static void win_chr_readfile(CharDriverState *chr) |
1774 |
{ |
1775 |
WinCharState *s = chr->opaque; |
1776 |
int ret, err;
|
1777 |
uint8_t buf[READ_BUF_LEN]; |
1778 |
DWORD size; |
1779 |
|
1780 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
1781 |
s->orecv.hEvent = s->hrecv; |
1782 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
1783 |
if (!ret) {
|
1784 |
err = GetLastError(); |
1785 |
if (err == ERROR_IO_PENDING) {
|
1786 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
1787 |
} |
1788 |
} |
1789 |
|
1790 |
if (size > 0) { |
1791 |
qemu_chr_be_write(chr, buf, size); |
1792 |
} |
1793 |
} |
1794 |
|
1795 |
static void win_chr_read(CharDriverState *chr) |
1796 |
{ |
1797 |
WinCharState *s = chr->opaque; |
1798 |
|
1799 |
if (s->len > s->max_size)
|
1800 |
s->len = s->max_size; |
1801 |
if (s->len == 0) |
1802 |
return;
|
1803 |
|
1804 |
win_chr_readfile(chr); |
1805 |
} |
1806 |
|
1807 |
static int win_chr_poll(void *opaque) |
1808 |
{ |
1809 |
CharDriverState *chr = opaque; |
1810 |
WinCharState *s = chr->opaque; |
1811 |
COMSTAT status; |
1812 |
DWORD comerr; |
1813 |
|
1814 |
ClearCommError(s->hcom, &comerr, &status); |
1815 |
if (status.cbInQue > 0) { |
1816 |
s->len = status.cbInQue; |
1817 |
win_chr_read_poll(chr); |
1818 |
win_chr_read(chr); |
1819 |
return 1; |
1820 |
} |
1821 |
return 0; |
1822 |
} |
1823 |
|
1824 |
static CharDriverState *qemu_chr_open_win_path(const char *filename) |
1825 |
{ |
1826 |
CharDriverState *chr; |
1827 |
WinCharState *s; |
1828 |
|
1829 |
chr = g_malloc0(sizeof(CharDriverState));
|
1830 |
s = g_malloc0(sizeof(WinCharState));
|
1831 |
chr->opaque = s; |
1832 |
chr->chr_write = win_chr_write; |
1833 |
chr->chr_close = win_chr_close; |
1834 |
|
1835 |
if (win_chr_init(chr, filename) < 0) { |
1836 |
g_free(s); |
1837 |
g_free(chr); |
1838 |
return NULL; |
1839 |
} |
1840 |
qemu_chr_generic_open(chr); |
1841 |
return chr;
|
1842 |
} |
1843 |
|
1844 |
static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
|
1845 |
{ |
1846 |
return qemu_chr_open_win_path(qemu_opt_get(opts, "path")); |
1847 |
} |
1848 |
|
1849 |
static int win_chr_pipe_poll(void *opaque) |
1850 |
{ |
1851 |
CharDriverState *chr = opaque; |
1852 |
WinCharState *s = chr->opaque; |
1853 |
DWORD size; |
1854 |
|
1855 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
1856 |
if (size > 0) { |
1857 |
s->len = size; |
1858 |
win_chr_read_poll(chr); |
1859 |
win_chr_read(chr); |
1860 |
return 1; |
1861 |
} |
1862 |
return 0; |
1863 |
} |
1864 |
|
1865 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
1866 |
{ |
1867 |
WinCharState *s = chr->opaque; |
1868 |
OVERLAPPED ov; |
1869 |
int ret;
|
1870 |
DWORD size; |
1871 |
char openname[256]; |
1872 |
|
1873 |
s->fpipe = TRUE; |
1874 |
|
1875 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1876 |
if (!s->hsend) {
|
1877 |
fprintf(stderr, "Failed CreateEvent\n");
|
1878 |
goto fail;
|
1879 |
} |
1880 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1881 |
if (!s->hrecv) {
|
1882 |
fprintf(stderr, "Failed CreateEvent\n");
|
1883 |
goto fail;
|
1884 |
} |
1885 |
|
1886 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
1887 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
1888 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
1889 |
PIPE_WAIT, |
1890 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
1891 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1892 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
1893 |
s->hcom = NULL;
|
1894 |
goto fail;
|
1895 |
} |
1896 |
|
1897 |
ZeroMemory(&ov, sizeof(ov));
|
1898 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
1899 |
ret = ConnectNamedPipe(s->hcom, &ov); |
1900 |
if (ret) {
|
1901 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
1902 |
goto fail;
|
1903 |
} |
1904 |
|
1905 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
1906 |
if (!ret) {
|
1907 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
1908 |
if (ov.hEvent) {
|
1909 |
CloseHandle(ov.hEvent); |
1910 |
ov.hEvent = NULL;
|
1911 |
} |
1912 |
goto fail;
|
1913 |
} |
1914 |
|
1915 |
if (ov.hEvent) {
|
1916 |
CloseHandle(ov.hEvent); |
1917 |
ov.hEvent = NULL;
|
1918 |
} |
1919 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
1920 |
return 0; |
1921 |
|
1922 |
fail:
|
1923 |
win_chr_close(chr); |
1924 |
return -1; |
1925 |
} |
1926 |
|
1927 |
|
1928 |
static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
|
1929 |
{ |
1930 |
const char *filename = qemu_opt_get(opts, "path"); |
1931 |
CharDriverState *chr; |
1932 |
WinCharState *s; |
1933 |
|
1934 |
chr = g_malloc0(sizeof(CharDriverState));
|
1935 |
s = g_malloc0(sizeof(WinCharState));
|
1936 |
chr->opaque = s; |
1937 |
chr->chr_write = win_chr_write; |
1938 |
chr->chr_close = win_chr_close; |
1939 |
|
1940 |
if (win_chr_pipe_init(chr, filename) < 0) { |
1941 |
g_free(s); |
1942 |
g_free(chr); |
1943 |
return NULL; |
1944 |
} |
1945 |
qemu_chr_generic_open(chr); |
1946 |
return chr;
|
1947 |
} |
1948 |
|
1949 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
1950 |
{ |
1951 |
CharDriverState *chr; |
1952 |
WinCharState *s; |
1953 |
|
1954 |
chr = g_malloc0(sizeof(CharDriverState));
|
1955 |
s = g_malloc0(sizeof(WinCharState));
|
1956 |
s->hcom = fd_out; |
1957 |
chr->opaque = s; |
1958 |
chr->chr_write = win_chr_write; |
1959 |
qemu_chr_generic_open(chr); |
1960 |
return chr;
|
1961 |
} |
1962 |
|
1963 |
static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
|
1964 |
{ |
1965 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
1966 |
} |
1967 |
|
1968 |
static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
|
1969 |
{ |
1970 |
const char *file_out = qemu_opt_get(opts, "path"); |
1971 |
HANDLE fd_out; |
1972 |
|
1973 |
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
1974 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
1975 |
if (fd_out == INVALID_HANDLE_VALUE) {
|
1976 |
return NULL; |
1977 |
} |
1978 |
|
1979 |
return qemu_chr_open_win_file(fd_out);
|
1980 |
} |
1981 |
|
1982 |
static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len) |
1983 |
{ |
1984 |
HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE); |
1985 |
DWORD dwSize; |
1986 |
int len1;
|
1987 |
|
1988 |
len1 = len; |
1989 |
|
1990 |
while (len1 > 0) { |
1991 |
if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) { |
1992 |
break;
|
1993 |
} |
1994 |
buf += dwSize; |
1995 |
len1 -= dwSize; |
1996 |
} |
1997 |
|
1998 |
return len - len1;
|
1999 |
} |
2000 |
|
2001 |
static void win_stdio_wait_func(void *opaque) |
2002 |
{ |
2003 |
CharDriverState *chr = opaque; |
2004 |
WinStdioCharState *stdio = chr->opaque; |
2005 |
INPUT_RECORD buf[4];
|
2006 |
int ret;
|
2007 |
DWORD dwSize; |
2008 |
int i;
|
2009 |
|
2010 |
ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf), |
2011 |
&dwSize); |
2012 |
|
2013 |
if (!ret) {
|
2014 |
/* Avoid error storm */
|
2015 |
qemu_del_wait_object(stdio->hStdIn, NULL, NULL); |
2016 |
return;
|
2017 |
} |
2018 |
|
2019 |
for (i = 0; i < dwSize; i++) { |
2020 |
KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent; |
2021 |
|
2022 |
if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
|
2023 |
int j;
|
2024 |
if (kev->uChar.AsciiChar != 0) { |
2025 |
for (j = 0; j < kev->wRepeatCount; j++) { |
2026 |
if (qemu_chr_be_can_write(chr)) {
|
2027 |
uint8_t c = kev->uChar.AsciiChar; |
2028 |
qemu_chr_be_write(chr, &c, 1);
|
2029 |
} |
2030 |
} |
2031 |
} |
2032 |
} |
2033 |
} |
2034 |
} |
2035 |
|
2036 |
static DWORD WINAPI win_stdio_thread(LPVOID param)
|
2037 |
{ |
2038 |
CharDriverState *chr = param; |
2039 |
WinStdioCharState *stdio = chr->opaque; |
2040 |
int ret;
|
2041 |
DWORD dwSize; |
2042 |
|
2043 |
while (1) { |
2044 |
|
2045 |
/* Wait for one byte */
|
2046 |
ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL); |
2047 |
|
2048 |
/* Exit in case of error, continue if nothing read */
|
2049 |
if (!ret) {
|
2050 |
break;
|
2051 |
} |
2052 |
if (!dwSize) {
|
2053 |
continue;
|
2054 |
} |
2055 |
|
2056 |
/* Some terminal emulator returns \r\n for Enter, just pass \n */
|
2057 |
if (stdio->win_stdio_buf == '\r') { |
2058 |
continue;
|
2059 |
} |
2060 |
|
2061 |
/* Signal the main thread and wait until the byte was eaten */
|
2062 |
if (!SetEvent(stdio->hInputReadyEvent)) {
|
2063 |
break;
|
2064 |
} |
2065 |
if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
|
2066 |
!= WAIT_OBJECT_0) { |
2067 |
break;
|
2068 |
} |
2069 |
} |
2070 |
|
2071 |
qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL); |
2072 |
return 0; |
2073 |
} |
2074 |
|
2075 |
static void win_stdio_thread_wait_func(void *opaque) |
2076 |
{ |
2077 |
CharDriverState *chr = opaque; |
2078 |
WinStdioCharState *stdio = chr->opaque; |
2079 |
|
2080 |
if (qemu_chr_be_can_write(chr)) {
|
2081 |
qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
|
2082 |
} |
2083 |
|
2084 |
SetEvent(stdio->hInputDoneEvent); |
2085 |
} |
2086 |
|
2087 |
static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo) |
2088 |
{ |
2089 |
WinStdioCharState *stdio = chr->opaque; |
2090 |
DWORD dwMode = 0;
|
2091 |
|
2092 |
GetConsoleMode(stdio->hStdIn, &dwMode); |
2093 |
|
2094 |
if (echo) {
|
2095 |
SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT); |
2096 |
} else {
|
2097 |
SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT); |
2098 |
} |
2099 |
} |
2100 |
|
2101 |
static void win_stdio_close(CharDriverState *chr) |
2102 |
{ |
2103 |
WinStdioCharState *stdio = chr->opaque; |
2104 |
|
2105 |
if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
|
2106 |
CloseHandle(stdio->hInputReadyEvent); |
2107 |
} |
2108 |
if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
|
2109 |
CloseHandle(stdio->hInputDoneEvent); |
2110 |
} |
2111 |
if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
|
2112 |
TerminateThread(stdio->hInputThread, 0);
|
2113 |
} |
2114 |
|
2115 |
g_free(chr->opaque); |
2116 |
g_free(chr); |
2117 |
} |
2118 |
|
2119 |
static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
|
2120 |
{ |
2121 |
CharDriverState *chr; |
2122 |
WinStdioCharState *stdio; |
2123 |
DWORD dwMode; |
2124 |
int is_console = 0; |
2125 |
|
2126 |
chr = g_malloc0(sizeof(CharDriverState));
|
2127 |
stdio = g_malloc0(sizeof(WinStdioCharState));
|
2128 |
|
2129 |
stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE); |
2130 |
if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
|
2131 |
fprintf(stderr, "cannot open stdio: invalid handle\n");
|
2132 |
exit(1);
|
2133 |
} |
2134 |
|
2135 |
is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
|
2136 |
|
2137 |
chr->opaque = stdio; |
2138 |
chr->chr_write = win_stdio_write; |
2139 |
chr->chr_close = win_stdio_close; |
2140 |
|
2141 |
if (is_console) {
|
2142 |
if (qemu_add_wait_object(stdio->hStdIn,
|
2143 |
win_stdio_wait_func, chr)) { |
2144 |
fprintf(stderr, "qemu_add_wait_object: failed\n");
|
2145 |
} |
2146 |
} else {
|
2147 |
DWORD dwId; |
2148 |
|
2149 |
stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
2150 |
stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
2151 |
stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread, |
2152 |
chr, 0, &dwId);
|
2153 |
|
2154 |
if (stdio->hInputThread == INVALID_HANDLE_VALUE
|
2155 |
|| stdio->hInputReadyEvent == INVALID_HANDLE_VALUE |
2156 |
|| stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) { |
2157 |
fprintf(stderr, "cannot create stdio thread or event\n");
|
2158 |
exit(1);
|
2159 |
} |
2160 |
if (qemu_add_wait_object(stdio->hInputReadyEvent,
|
2161 |
win_stdio_thread_wait_func, chr)) { |
2162 |
fprintf(stderr, "qemu_add_wait_object: failed\n");
|
2163 |
} |
2164 |
} |
2165 |
|
2166 |
dwMode |= ENABLE_LINE_INPUT; |
2167 |
|
2168 |
if (is_console) {
|
2169 |
/* set the terminal in raw mode */
|
2170 |
/* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
|
2171 |
dwMode |= ENABLE_PROCESSED_INPUT; |
2172 |
} |
2173 |
|
2174 |
SetConsoleMode(stdio->hStdIn, dwMode); |
2175 |
|
2176 |
chr->chr_set_echo = qemu_chr_set_echo_win_stdio; |
2177 |
qemu_chr_fe_set_echo(chr, false);
|
2178 |
|
2179 |
return chr;
|
2180 |
} |
2181 |
#endif /* !_WIN32 */ |
2182 |
|
2183 |
/***********************************************************/
|
2184 |
/* UDP Net console */
|
2185 |
|
2186 |
typedef struct { |
2187 |
int fd;
|
2188 |
GIOChannel *chan; |
2189 |
guint tag; |
2190 |
uint8_t buf[READ_BUF_LEN]; |
2191 |
int bufcnt;
|
2192 |
int bufptr;
|
2193 |
int max_size;
|
2194 |
} NetCharDriver; |
2195 |
|
2196 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
2197 |
{ |
2198 |
NetCharDriver *s = chr->opaque; |
2199 |
gsize bytes_written; |
2200 |
GIOStatus status; |
2201 |
|
2202 |
status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL); |
2203 |
if (status == G_IO_STATUS_EOF) {
|
2204 |
return 0; |
2205 |
} else if (status != G_IO_STATUS_NORMAL) { |
2206 |
return -1; |
2207 |
} |
2208 |
|
2209 |
return bytes_written;
|
2210 |
} |
2211 |
|
2212 |
static int udp_chr_read_poll(void *opaque) |
2213 |
{ |
2214 |
CharDriverState *chr = opaque; |
2215 |
NetCharDriver *s = chr->opaque; |
2216 |
|
2217 |
s->max_size = qemu_chr_be_can_write(chr); |
2218 |
|
2219 |
/* If there were any stray characters in the queue process them
|
2220 |
* first
|
2221 |
*/
|
2222 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
2223 |
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
2224 |
s->bufptr++; |
2225 |
s->max_size = qemu_chr_be_can_write(chr); |
2226 |
} |
2227 |
return s->max_size;
|
2228 |
} |
2229 |
|
2230 |
static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
2231 |
{ |
2232 |
CharDriverState *chr = opaque; |
2233 |
NetCharDriver *s = chr->opaque; |
2234 |
gsize bytes_read = 0;
|
2235 |
GIOStatus status; |
2236 |
|
2237 |
if (s->max_size == 0) |
2238 |
return FALSE;
|
2239 |
status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
|
2240 |
&bytes_read, NULL);
|
2241 |
s->bufcnt = bytes_read; |
2242 |
s->bufptr = s->bufcnt; |
2243 |
if (status != G_IO_STATUS_NORMAL) {
|
2244 |
return FALSE;
|
2245 |
} |
2246 |
|
2247 |
s->bufptr = 0;
|
2248 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
2249 |
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
2250 |
s->bufptr++; |
2251 |
s->max_size = qemu_chr_be_can_write(chr); |
2252 |
} |
2253 |
|
2254 |
return TRUE;
|
2255 |
} |
2256 |
|
2257 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
2258 |
{ |
2259 |
NetCharDriver *s = chr->opaque; |
2260 |
|
2261 |
if (s->tag) {
|
2262 |
g_source_remove(s->tag); |
2263 |
s->tag = 0;
|
2264 |
} |
2265 |
|
2266 |
if (s->chan) {
|
2267 |
s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr); |
2268 |
} |
2269 |
} |
2270 |
|
2271 |
static void udp_chr_close(CharDriverState *chr) |
2272 |
{ |
2273 |
NetCharDriver *s = chr->opaque; |
2274 |
if (s->tag) {
|
2275 |
g_source_remove(s->tag); |
2276 |
} |
2277 |
if (s->chan) {
|
2278 |
g_io_channel_unref(s->chan); |
2279 |
closesocket(s->fd); |
2280 |
} |
2281 |
g_free(s); |
2282 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
2283 |
} |
2284 |
|
2285 |
static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
|
2286 |
{ |
2287 |
CharDriverState *chr = NULL;
|
2288 |
NetCharDriver *s = NULL;
|
2289 |
Error *local_err = NULL;
|
2290 |
int fd = -1; |
2291 |
|
2292 |
chr = g_malloc0(sizeof(CharDriverState));
|
2293 |
s = g_malloc0(sizeof(NetCharDriver));
|
2294 |
|
2295 |
fd = inet_dgram_opts(opts, &local_err); |
2296 |
if (fd < 0) { |
2297 |
goto return_err;
|
2298 |
} |
2299 |
|
2300 |
s->fd = fd; |
2301 |
s->chan = io_channel_from_socket(s->fd); |
2302 |
s->bufcnt = 0;
|
2303 |
s->bufptr = 0;
|
2304 |
chr->opaque = s; |
2305 |
chr->chr_write = udp_chr_write; |
2306 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
2307 |
chr->chr_close = udp_chr_close; |
2308 |
return chr;
|
2309 |
|
2310 |
return_err:
|
2311 |
if (local_err) {
|
2312 |
qerror_report_err(local_err); |
2313 |
error_free(local_err); |
2314 |
} |
2315 |
g_free(chr); |
2316 |
g_free(s); |
2317 |
if (fd >= 0) { |
2318 |
closesocket(fd); |
2319 |
} |
2320 |
return NULL; |
2321 |
} |
2322 |
|
2323 |
/***********************************************************/
|
2324 |
/* TCP Net console */
|
2325 |
|
2326 |
typedef struct { |
2327 |
|
2328 |
GIOChannel *chan, *listen_chan; |
2329 |
guint tag, listen_tag; |
2330 |
int fd, listen_fd;
|
2331 |
int connected;
|
2332 |
int max_size;
|
2333 |
int do_telnetopt;
|
2334 |
int do_nodelay;
|
2335 |
int is_unix;
|
2336 |
int msgfd;
|
2337 |
} TCPCharDriver; |
2338 |
|
2339 |
static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque); |
2340 |
|
2341 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
2342 |
{ |
2343 |
TCPCharDriver *s = chr->opaque; |
2344 |
if (s->connected) {
|
2345 |
return io_channel_send_all(s->chan, buf, len);
|
2346 |
} else {
|
2347 |
/* XXX: indicate an error ? */
|
2348 |
return len;
|
2349 |
} |
2350 |
} |
2351 |
|
2352 |
static int tcp_chr_read_poll(void *opaque) |
2353 |
{ |
2354 |
CharDriverState *chr = opaque; |
2355 |
TCPCharDriver *s = chr->opaque; |
2356 |
if (!s->connected)
|
2357 |
return 0; |
2358 |
s->max_size = qemu_chr_be_can_write(chr); |
2359 |
return s->max_size;
|
2360 |
} |
2361 |
|
2362 |
#define IAC 255 |
2363 |
#define IAC_BREAK 243 |
2364 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
2365 |
TCPCharDriver *s, |
2366 |
uint8_t *buf, int *size)
|
2367 |
{ |
2368 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
2369 |
* char mode with no echo. All IAC options will be removed from
|
2370 |
* the buf and the do_telnetopt variable will be used to track the
|
2371 |
* state of the width of the IAC information.
|
2372 |
*
|
2373 |
* IAC commands come in sets of 3 bytes with the exception of the
|
2374 |
* "IAC BREAK" command and the double IAC.
|
2375 |
*/
|
2376 |
|
2377 |
int i;
|
2378 |
int j = 0; |
2379 |
|
2380 |
for (i = 0; i < *size; i++) { |
2381 |
if (s->do_telnetopt > 1) { |
2382 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
2383 |
/* Double IAC means send an IAC */
|
2384 |
if (j != i)
|
2385 |
buf[j] = buf[i]; |
2386 |
j++; |
2387 |
s->do_telnetopt = 1;
|
2388 |
} else {
|
2389 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
2390 |
/* Handle IAC break commands by sending a serial break */
|
2391 |
qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
2392 |
s->do_telnetopt++; |
2393 |
} |
2394 |
s->do_telnetopt++; |
2395 |
} |
2396 |
if (s->do_telnetopt >= 4) { |
2397 |
s->do_telnetopt = 1;
|
2398 |
} |
2399 |
} else {
|
2400 |
if ((unsigned char)buf[i] == IAC) { |
2401 |
s->do_telnetopt = 2;
|
2402 |
} else {
|
2403 |
if (j != i)
|
2404 |
buf[j] = buf[i]; |
2405 |
j++; |
2406 |
} |
2407 |
} |
2408 |
} |
2409 |
*size = j; |
2410 |
} |
2411 |
|
2412 |
static int tcp_get_msgfd(CharDriverState *chr) |
2413 |
{ |
2414 |
TCPCharDriver *s = chr->opaque; |
2415 |
int fd = s->msgfd;
|
2416 |
s->msgfd = -1;
|
2417 |
return fd;
|
2418 |
} |
2419 |
|
2420 |
#ifndef _WIN32
|
2421 |
static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg) |
2422 |
{ |
2423 |
TCPCharDriver *s = chr->opaque; |
2424 |
struct cmsghdr *cmsg;
|
2425 |
|
2426 |
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
|
2427 |
int fd;
|
2428 |
|
2429 |
if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) || |
2430 |
cmsg->cmsg_level != SOL_SOCKET || |
2431 |
cmsg->cmsg_type != SCM_RIGHTS) |
2432 |
continue;
|
2433 |
|
2434 |
fd = *((int *)CMSG_DATA(cmsg));
|
2435 |
if (fd < 0) |
2436 |
continue;
|
2437 |
|
2438 |
#ifndef MSG_CMSG_CLOEXEC
|
2439 |
qemu_set_cloexec(fd); |
2440 |
#endif
|
2441 |
if (s->msgfd != -1) |
2442 |
close(s->msgfd); |
2443 |
s->msgfd = fd; |
2444 |
} |
2445 |
} |
2446 |
|
2447 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
2448 |
{ |
2449 |
TCPCharDriver *s = chr->opaque; |
2450 |
struct msghdr msg = { NULL, }; |
2451 |
struct iovec iov[1]; |
2452 |
union {
|
2453 |
struct cmsghdr cmsg;
|
2454 |
char control[CMSG_SPACE(sizeof(int))]; |
2455 |
} msg_control; |
2456 |
int flags = 0; |
2457 |
ssize_t ret; |
2458 |
|
2459 |
iov[0].iov_base = buf;
|
2460 |
iov[0].iov_len = len;
|
2461 |
|
2462 |
msg.msg_iov = iov; |
2463 |
msg.msg_iovlen = 1;
|
2464 |
msg.msg_control = &msg_control; |
2465 |
msg.msg_controllen = sizeof(msg_control);
|
2466 |
|
2467 |
#ifdef MSG_CMSG_CLOEXEC
|
2468 |
flags |= MSG_CMSG_CLOEXEC; |
2469 |
#endif
|
2470 |
ret = recvmsg(s->fd, &msg, flags); |
2471 |
if (ret > 0 && s->is_unix) { |
2472 |
unix_process_msgfd(chr, &msg); |
2473 |
} |
2474 |
|
2475 |
return ret;
|
2476 |
} |
2477 |
#else
|
2478 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
2479 |
{ |
2480 |
TCPCharDriver *s = chr->opaque; |
2481 |
return qemu_recv(s->fd, buf, len, 0); |
2482 |
} |
2483 |
#endif
|
2484 |
|
2485 |
static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
|
2486 |
{ |
2487 |
TCPCharDriver *s = chr->opaque; |
2488 |
return g_io_create_watch(s->chan, cond);
|
2489 |
} |
2490 |
|
2491 |
static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
2492 |
{ |
2493 |
CharDriverState *chr = opaque; |
2494 |
TCPCharDriver *s = chr->opaque; |
2495 |
uint8_t buf[READ_BUF_LEN]; |
2496 |
int len, size;
|
2497 |
|
2498 |
if (!s->connected || s->max_size <= 0) { |
2499 |
return FALSE;
|
2500 |
} |
2501 |
len = sizeof(buf);
|
2502 |
if (len > s->max_size)
|
2503 |
len = s->max_size; |
2504 |
size = tcp_chr_recv(chr, (void *)buf, len);
|
2505 |
if (size == 0) { |
2506 |
/* connection closed */
|
2507 |
s->connected = 0;
|
2508 |
if (s->listen_chan) {
|
2509 |
s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr); |
2510 |
} |
2511 |
g_source_remove(s->tag); |
2512 |
s->tag = 0;
|
2513 |
g_io_channel_unref(s->chan); |
2514 |
s->chan = NULL;
|
2515 |
closesocket(s->fd); |
2516 |
s->fd = -1;
|
2517 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
2518 |
} else if (size > 0) { |
2519 |
if (s->do_telnetopt)
|
2520 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
2521 |
if (size > 0) |
2522 |
qemu_chr_be_write(chr, buf, size); |
2523 |
} |
2524 |
|
2525 |
return TRUE;
|
2526 |
} |
2527 |
|
2528 |
#ifndef _WIN32
|
2529 |
CharDriverState *qemu_chr_open_eventfd(int eventfd)
|
2530 |
{ |
2531 |
return qemu_chr_open_fd(eventfd, eventfd);
|
2532 |
} |
2533 |
#endif
|
2534 |
|
2535 |
static void tcp_chr_connect(void *opaque) |
2536 |
{ |
2537 |
CharDriverState *chr = opaque; |
2538 |
TCPCharDriver *s = chr->opaque; |
2539 |
|
2540 |
s->connected = 1;
|
2541 |
if (s->chan) {
|
2542 |
s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr); |
2543 |
} |
2544 |
qemu_chr_generic_open(chr); |
2545 |
} |
2546 |
|
2547 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
2548 |
static void tcp_chr_telnet_init(int fd) |
2549 |
{ |
2550 |
char buf[3]; |
2551 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
2552 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
2553 |
send(fd, (char *)buf, 3, 0); |
2554 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
2555 |
send(fd, (char *)buf, 3, 0); |
2556 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
2557 |
send(fd, (char *)buf, 3, 0); |
2558 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
2559 |
send(fd, (char *)buf, 3, 0); |
2560 |
} |
2561 |
|
2562 |
static int tcp_chr_add_client(CharDriverState *chr, int fd) |
2563 |
{ |
2564 |
TCPCharDriver *s = chr->opaque; |
2565 |
if (s->fd != -1) |
2566 |
return -1; |
2567 |
|
2568 |
socket_set_nonblock(fd); |
2569 |
if (s->do_nodelay)
|
2570 |
socket_set_nodelay(fd); |
2571 |
s->fd = fd; |
2572 |
s->chan = io_channel_from_socket(fd); |
2573 |
g_source_remove(s->listen_tag); |
2574 |
s->listen_tag = 0;
|
2575 |
tcp_chr_connect(chr); |
2576 |
|
2577 |
return 0; |
2578 |
} |
2579 |
|
2580 |
static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque) |
2581 |
{ |
2582 |
CharDriverState *chr = opaque; |
2583 |
TCPCharDriver *s = chr->opaque; |
2584 |
struct sockaddr_in saddr;
|
2585 |
#ifndef _WIN32
|
2586 |
struct sockaddr_un uaddr;
|
2587 |
#endif
|
2588 |
struct sockaddr *addr;
|
2589 |
socklen_t len; |
2590 |
int fd;
|
2591 |
|
2592 |
for(;;) {
|
2593 |
#ifndef _WIN32
|
2594 |
if (s->is_unix) {
|
2595 |
len = sizeof(uaddr);
|
2596 |
addr = (struct sockaddr *)&uaddr;
|
2597 |
} else
|
2598 |
#endif
|
2599 |
{ |
2600 |
len = sizeof(saddr);
|
2601 |
addr = (struct sockaddr *)&saddr;
|
2602 |
} |
2603 |
fd = qemu_accept(s->listen_fd, addr, &len); |
2604 |
if (fd < 0 && errno != EINTR) { |
2605 |
return FALSE;
|
2606 |
} else if (fd >= 0) { |
2607 |
if (s->do_telnetopt)
|
2608 |
tcp_chr_telnet_init(fd); |
2609 |
break;
|
2610 |
} |
2611 |
} |
2612 |
if (tcp_chr_add_client(chr, fd) < 0) |
2613 |
close(fd); |
2614 |
|
2615 |
return TRUE;
|
2616 |
} |
2617 |
|
2618 |
static void tcp_chr_close(CharDriverState *chr) |
2619 |
{ |
2620 |
TCPCharDriver *s = chr->opaque; |
2621 |
if (s->fd >= 0) { |
2622 |
if (s->tag) {
|
2623 |
g_source_remove(s->tag); |
2624 |
} |
2625 |
if (s->chan) {
|
2626 |
g_io_channel_unref(s->chan); |
2627 |
} |
2628 |
closesocket(s->fd); |
2629 |
} |
2630 |
if (s->listen_fd >= 0) { |
2631 |
if (s->listen_tag) {
|
2632 |
g_source_remove(s->listen_tag); |
2633 |
} |
2634 |
if (s->listen_chan) {
|
2635 |
g_io_channel_unref(s->listen_chan); |
2636 |
} |
2637 |
closesocket(s->listen_fd); |
2638 |
} |
2639 |
g_free(s); |
2640 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
2641 |
} |
2642 |
|
2643 |
static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay, |
2644 |
bool is_listen, bool is_telnet, |
2645 |
bool is_waitconnect,
|
2646 |
Error **errp) |
2647 |
{ |
2648 |
CharDriverState *chr = NULL;
|
2649 |
TCPCharDriver *s = NULL;
|
2650 |
char host[NI_MAXHOST], serv[NI_MAXSERV];
|
2651 |
const char *left = "", *right = ""; |
2652 |
struct sockaddr_storage ss;
|
2653 |
socklen_t ss_len = sizeof(ss);
|
2654 |
|
2655 |
memset(&ss, 0, ss_len);
|
2656 |
if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) { |
2657 |
error_setg(errp, "getsockname: %s", strerror(errno));
|
2658 |
return NULL; |
2659 |
} |
2660 |
|
2661 |
chr = g_malloc0(sizeof(CharDriverState));
|
2662 |
s = g_malloc0(sizeof(TCPCharDriver));
|
2663 |
|
2664 |
s->connected = 0;
|
2665 |
s->fd = -1;
|
2666 |
s->listen_fd = -1;
|
2667 |
s->msgfd = -1;
|
2668 |
|
2669 |
chr->filename = g_malloc(256);
|
2670 |
switch (ss.ss_family) {
|
2671 |
#ifndef _WIN32
|
2672 |
case AF_UNIX:
|
2673 |
s->is_unix = 1;
|
2674 |
snprintf(chr->filename, 256, "unix:%s%s", |
2675 |
((struct sockaddr_un *)(&ss))->sun_path,
|
2676 |
is_listen ? ",server" : ""); |
2677 |
break;
|
2678 |
#endif
|
2679 |
case AF_INET6:
|
2680 |
left = "[";
|
2681 |
right = "]";
|
2682 |
/* fall through */
|
2683 |
case AF_INET:
|
2684 |
s->do_nodelay = do_nodelay; |
2685 |
getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host), |
2686 |
serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
|
2687 |
snprintf(chr->filename, 256, "%s:%s:%s%s%s%s", |
2688 |
is_telnet ? "telnet" : "tcp", |
2689 |
left, host, right, serv, |
2690 |
is_listen ? ",server" : ""); |
2691 |
break;
|
2692 |
} |
2693 |
|
2694 |
chr->opaque = s; |
2695 |
chr->chr_write = tcp_chr_write; |
2696 |
chr->chr_close = tcp_chr_close; |
2697 |
chr->get_msgfd = tcp_get_msgfd; |
2698 |
chr->chr_add_client = tcp_chr_add_client; |
2699 |
chr->chr_add_watch = tcp_chr_add_watch; |
2700 |
|
2701 |
if (is_listen) {
|
2702 |
s->listen_fd = fd; |
2703 |
s->listen_chan = io_channel_from_socket(s->listen_fd); |
2704 |
s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr); |
2705 |
if (is_telnet) {
|
2706 |
s->do_telnetopt = 1;
|
2707 |
} |
2708 |
} else {
|
2709 |
s->connected = 1;
|
2710 |
s->fd = fd; |
2711 |
socket_set_nodelay(fd); |
2712 |
s->chan = io_channel_from_socket(s->fd); |
2713 |
tcp_chr_connect(chr); |
2714 |
} |
2715 |
|
2716 |
if (is_listen && is_waitconnect) {
|
2717 |
printf("QEMU waiting for connection on: %s\n",
|
2718 |
chr->filename); |
2719 |
tcp_chr_accept(s->listen_chan, G_IO_IN, chr); |
2720 |
socket_set_nonblock(s->listen_fd); |
2721 |
} |
2722 |
return chr;
|
2723 |
} |
2724 |
|
2725 |
static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
|
2726 |
{ |
2727 |
CharDriverState *chr = NULL;
|
2728 |
Error *local_err = NULL;
|
2729 |
int fd = -1; |
2730 |
int is_listen;
|
2731 |
int is_waitconnect;
|
2732 |
int do_nodelay;
|
2733 |
int is_unix;
|
2734 |
int is_telnet;
|
2735 |
|
2736 |
is_listen = qemu_opt_get_bool(opts, "server", 0); |
2737 |
is_waitconnect = qemu_opt_get_bool(opts, "wait", 1); |
2738 |
is_telnet = qemu_opt_get_bool(opts, "telnet", 0); |
2739 |
do_nodelay = !qemu_opt_get_bool(opts, "delay", 1); |
2740 |
is_unix = qemu_opt_get(opts, "path") != NULL; |
2741 |
if (!is_listen)
|
2742 |
is_waitconnect = 0;
|
2743 |
|
2744 |
if (is_unix) {
|
2745 |
if (is_listen) {
|
2746 |
fd = unix_listen_opts(opts, &local_err); |
2747 |
} else {
|
2748 |
fd = unix_connect_opts(opts, &local_err, NULL, NULL); |
2749 |
} |
2750 |
} else {
|
2751 |
if (is_listen) {
|
2752 |
fd = inet_listen_opts(opts, 0, &local_err);
|
2753 |
} else {
|
2754 |
fd = inet_connect_opts(opts, &local_err, NULL, NULL); |
2755 |
} |
2756 |
} |
2757 |
if (fd < 0) { |
2758 |
goto fail;
|
2759 |
} |
2760 |
|
2761 |
if (!is_waitconnect)
|
2762 |
socket_set_nonblock(fd); |
2763 |
|
2764 |
chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet, |
2765 |
is_waitconnect, &local_err); |
2766 |
if (error_is_set(&local_err)) {
|
2767 |
goto fail;
|
2768 |
} |
2769 |
return chr;
|
2770 |
|
2771 |
|
2772 |
fail:
|
2773 |
if (local_err) {
|
2774 |
qerror_report_err(local_err); |
2775 |
error_free(local_err); |
2776 |
} |
2777 |
if (fd >= 0) { |
2778 |
closesocket(fd); |
2779 |
} |
2780 |
if (chr) {
|
2781 |
g_free(chr->opaque); |
2782 |
g_free(chr); |
2783 |
} |
2784 |
return NULL; |
2785 |
} |
2786 |
|
2787 |
/***********************************************************/
|
2788 |
/* Memory chardev */
|
2789 |
typedef struct { |
2790 |
size_t outbuf_size; |
2791 |
size_t outbuf_capacity; |
2792 |
uint8_t *outbuf; |
2793 |
} MemoryDriver; |
2794 |
|
2795 |
static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
2796 |
{ |
2797 |
MemoryDriver *d = chr->opaque; |
2798 |
|
2799 |
/* TODO: the QString implementation has the same code, we should
|
2800 |
* introduce a generic way to do this in cutils.c */
|
2801 |
if (d->outbuf_capacity < d->outbuf_size + len) {
|
2802 |
/* grow outbuf */
|
2803 |
d->outbuf_capacity += len; |
2804 |
d->outbuf_capacity *= 2;
|
2805 |
d->outbuf = g_realloc(d->outbuf, d->outbuf_capacity); |
2806 |
} |
2807 |
|
2808 |
memcpy(d->outbuf + d->outbuf_size, buf, len); |
2809 |
d->outbuf_size += len; |
2810 |
|
2811 |
return len;
|
2812 |
} |
2813 |
|
2814 |
void qemu_chr_init_mem(CharDriverState *chr)
|
2815 |
{ |
2816 |
MemoryDriver *d; |
2817 |
|
2818 |
d = g_malloc(sizeof(*d));
|
2819 |
d->outbuf_size = 0;
|
2820 |
d->outbuf_capacity = 4096;
|
2821 |
d->outbuf = g_malloc0(d->outbuf_capacity); |
2822 |
|
2823 |
memset(chr, 0, sizeof(*chr)); |
2824 |
chr->opaque = d; |
2825 |
chr->chr_write = mem_chr_write; |
2826 |
} |
2827 |
|
2828 |
QString *qemu_chr_mem_to_qs(CharDriverState *chr) |
2829 |
{ |
2830 |
MemoryDriver *d = chr->opaque; |
2831 |
return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1); |
2832 |
} |
2833 |
|
2834 |
/* NOTE: this driver can not be closed with qemu_chr_delete()! */
|
2835 |
void qemu_chr_close_mem(CharDriverState *chr)
|
2836 |
{ |
2837 |
MemoryDriver *d = chr->opaque; |
2838 |
|
2839 |
g_free(d->outbuf); |
2840 |
g_free(chr->opaque); |
2841 |
chr->opaque = NULL;
|
2842 |
chr->chr_write = NULL;
|
2843 |
} |
2844 |
|
2845 |
size_t qemu_chr_mem_osize(const CharDriverState *chr)
|
2846 |
{ |
2847 |
const MemoryDriver *d = chr->opaque;
|
2848 |
return d->outbuf_size;
|
2849 |
} |
2850 |
|
2851 |
/*********************************************************/
|
2852 |
/* Ring buffer chardev */
|
2853 |
|
2854 |
typedef struct { |
2855 |
size_t size; |
2856 |
size_t prod; |
2857 |
size_t cons; |
2858 |
uint8_t *cbuf; |
2859 |
} RingBufCharDriver; |
2860 |
|
2861 |
static size_t ringbuf_count(const CharDriverState *chr) |
2862 |
{ |
2863 |
const RingBufCharDriver *d = chr->opaque;
|
2864 |
|
2865 |
return d->prod - d->cons;
|
2866 |
} |
2867 |
|
2868 |
static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
2869 |
{ |
2870 |
RingBufCharDriver *d = chr->opaque; |
2871 |
int i;
|
2872 |
|
2873 |
if (!buf || (len < 0)) { |
2874 |
return -1; |
2875 |
} |
2876 |
|
2877 |
for (i = 0; i < len; i++ ) { |
2878 |
d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
|
2879 |
if (d->prod - d->cons > d->size) {
|
2880 |
d->cons = d->prod - d->size; |
2881 |
} |
2882 |
} |
2883 |
|
2884 |
return 0; |
2885 |
} |
2886 |
|
2887 |
static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len) |
2888 |
{ |
2889 |
RingBufCharDriver *d = chr->opaque; |
2890 |
int i;
|
2891 |
|
2892 |
for (i = 0; i < len && d->cons != d->prod; i++) { |
2893 |
buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
|
2894 |
} |
2895 |
|
2896 |
return i;
|
2897 |
} |
2898 |
|
2899 |
static void ringbuf_chr_close(struct CharDriverState *chr) |
2900 |
{ |
2901 |
RingBufCharDriver *d = chr->opaque; |
2902 |
|
2903 |
g_free(d->cbuf); |
2904 |
g_free(d); |
2905 |
chr->opaque = NULL;
|
2906 |
} |
2907 |
|
2908 |
static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
|
2909 |
{ |
2910 |
CharDriverState *chr; |
2911 |
RingBufCharDriver *d; |
2912 |
|
2913 |
chr = g_malloc0(sizeof(CharDriverState));
|
2914 |
d = g_malloc(sizeof(*d));
|
2915 |
|
2916 |
d->size = qemu_opt_get_size(opts, "size", 0); |
2917 |
if (d->size == 0) { |
2918 |
d->size = 65536;
|
2919 |
} |
2920 |
|
2921 |
/* The size must be power of 2 */
|
2922 |
if (d->size & (d->size - 1)) { |
2923 |
error_report("size of ringbuf device must be power of two");
|
2924 |
goto fail;
|
2925 |
} |
2926 |
|
2927 |
d->prod = 0;
|
2928 |
d->cons = 0;
|
2929 |
d->cbuf = g_malloc0(d->size); |
2930 |
|
2931 |
chr->opaque = d; |
2932 |
chr->chr_write = ringbuf_chr_write; |
2933 |
chr->chr_close = ringbuf_chr_close; |
2934 |
|
2935 |
return chr;
|
2936 |
|
2937 |
fail:
|
2938 |
g_free(d); |
2939 |
g_free(chr); |
2940 |
return NULL; |
2941 |
} |
2942 |
|
2943 |
static bool chr_is_ringbuf(const CharDriverState *chr) |
2944 |
{ |
2945 |
return chr->chr_write == ringbuf_chr_write;
|
2946 |
} |
2947 |
|
2948 |
void qmp_ringbuf_write(const char *device, const char *data, |
2949 |
bool has_format, enum DataFormat format, |
2950 |
Error **errp) |
2951 |
{ |
2952 |
CharDriverState *chr; |
2953 |
const uint8_t *write_data;
|
2954 |
int ret;
|
2955 |
size_t write_count; |
2956 |
|
2957 |
chr = qemu_chr_find(device); |
2958 |
if (!chr) {
|
2959 |
error_setg(errp, "Device '%s' not found", device);
|
2960 |
return;
|
2961 |
} |
2962 |
|
2963 |
if (!chr_is_ringbuf(chr)) {
|
2964 |
error_setg(errp,"%s is not a ringbuf device", device);
|
2965 |
return;
|
2966 |
} |
2967 |
|
2968 |
if (has_format && (format == DATA_FORMAT_BASE64)) {
|
2969 |
write_data = g_base64_decode(data, &write_count); |
2970 |
} else {
|
2971 |
write_data = (uint8_t *)data; |
2972 |
write_count = strlen(data); |
2973 |
} |
2974 |
|
2975 |
ret = ringbuf_chr_write(chr, write_data, write_count); |
2976 |
|
2977 |
if (write_data != (uint8_t *)data) {
|
2978 |
g_free((void *)write_data);
|
2979 |
} |
2980 |
|
2981 |
if (ret < 0) { |
2982 |
error_setg(errp, "Failed to write to device %s", device);
|
2983 |
return;
|
2984 |
} |
2985 |
} |
2986 |
|
2987 |
char *qmp_ringbuf_read(const char *device, int64_t size, |
2988 |
bool has_format, enum DataFormat format, |
2989 |
Error **errp) |
2990 |
{ |
2991 |
CharDriverState *chr; |
2992 |
uint8_t *read_data; |
2993 |
size_t count; |
2994 |
char *data;
|
2995 |
|
2996 |
chr = qemu_chr_find(device); |
2997 |
if (!chr) {
|
2998 |
error_setg(errp, "Device '%s' not found", device);
|
2999 |
return NULL; |
3000 |
} |
3001 |
|
3002 |
if (!chr_is_ringbuf(chr)) {
|
3003 |
error_setg(errp,"%s is not a ringbuf device", device);
|
3004 |
return NULL; |
3005 |
} |
3006 |
|
3007 |
if (size <= 0) { |
3008 |
error_setg(errp, "size must be greater than zero");
|
3009 |
return NULL; |
3010 |
} |
3011 |
|
3012 |
count = ringbuf_count(chr); |
3013 |
size = size > count ? count : size; |
3014 |
read_data = g_malloc(size + 1);
|
3015 |
|
3016 |
ringbuf_chr_read(chr, read_data, size); |
3017 |
|
3018 |
if (has_format && (format == DATA_FORMAT_BASE64)) {
|
3019 |
data = g_base64_encode(read_data, size); |
3020 |
g_free(read_data); |
3021 |
} else {
|
3022 |
/*
|
3023 |
* FIXME should read only complete, valid UTF-8 characters up
|
3024 |
* to @size bytes. Invalid sequences should be replaced by a
|
3025 |
* suitable replacement character. Except when (and only
|
3026 |
* when) ring buffer lost characters since last read, initial
|
3027 |
* continuation characters should be dropped.
|
3028 |
*/
|
3029 |
read_data[size] = 0;
|
3030 |
data = (char *)read_data;
|
3031 |
} |
3032 |
|
3033 |
return data;
|
3034 |
} |
3035 |
|
3036 |
QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename) |
3037 |
{ |
3038 |
char host[65], port[33], width[8], height[8]; |
3039 |
int pos;
|
3040 |
const char *p; |
3041 |
QemuOpts *opts; |
3042 |
Error *local_err = NULL;
|
3043 |
|
3044 |
opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err); |
3045 |
if (error_is_set(&local_err)) {
|
3046 |
qerror_report_err(local_err); |
3047 |
error_free(local_err); |
3048 |
return NULL; |
3049 |
} |
3050 |
|
3051 |
if (strstart(filename, "mon:", &p)) { |
3052 |
filename = p; |
3053 |
qemu_opt_set(opts, "mux", "on"); |
3054 |
} |
3055 |
|
3056 |
if (strcmp(filename, "null") == 0 || |
3057 |
strcmp(filename, "pty") == 0 || |
3058 |
strcmp(filename, "msmouse") == 0 || |
3059 |
strcmp(filename, "braille") == 0 || |
3060 |
strcmp(filename, "stdio") == 0) { |
3061 |
qemu_opt_set(opts, "backend", filename);
|
3062 |
return opts;
|
3063 |
} |
3064 |
if (strstart(filename, "vc", &p)) { |
3065 |
qemu_opt_set(opts, "backend", "vc"); |
3066 |
if (*p == ':') { |
3067 |
if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) { |
3068 |
/* pixels */
|
3069 |
qemu_opt_set(opts, "width", width);
|
3070 |
qemu_opt_set(opts, "height", height);
|
3071 |
} else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) { |
3072 |
/* chars */
|
3073 |
qemu_opt_set(opts, "cols", width);
|
3074 |
qemu_opt_set(opts, "rows", height);
|
3075 |
} else {
|
3076 |
goto fail;
|
3077 |
} |
3078 |
} |
3079 |
return opts;
|
3080 |
} |
3081 |
if (strcmp(filename, "con:") == 0) { |
3082 |
qemu_opt_set(opts, "backend", "console"); |
3083 |
return opts;
|
3084 |
} |
3085 |
if (strstart(filename, "COM", NULL)) { |
3086 |
qemu_opt_set(opts, "backend", "serial"); |
3087 |
qemu_opt_set(opts, "path", filename);
|
3088 |
return opts;
|
3089 |
} |
3090 |
if (strstart(filename, "file:", &p)) { |
3091 |
qemu_opt_set(opts, "backend", "file"); |
3092 |
qemu_opt_set(opts, "path", p);
|
3093 |
return opts;
|
3094 |
} |
3095 |
if (strstart(filename, "pipe:", &p)) { |
3096 |
qemu_opt_set(opts, "backend", "pipe"); |
3097 |
qemu_opt_set(opts, "path", p);
|
3098 |
return opts;
|
3099 |
} |
3100 |
if (strstart(filename, "tcp:", &p) || |
3101 |
strstart(filename, "telnet:", &p)) {
|
3102 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
3103 |
host[0] = 0; |
3104 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) |
3105 |
goto fail;
|
3106 |
} |
3107 |
qemu_opt_set(opts, "backend", "socket"); |
3108 |
qemu_opt_set(opts, "host", host);
|
3109 |
qemu_opt_set(opts, "port", port);
|
3110 |
if (p[pos] == ',') { |
3111 |
if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0) |
3112 |
goto fail;
|
3113 |
} |
3114 |
if (strstart(filename, "telnet:", &p)) |
3115 |
qemu_opt_set(opts, "telnet", "on"); |
3116 |
return opts;
|
3117 |
} |
3118 |
if (strstart(filename, "udp:", &p)) { |
3119 |
qemu_opt_set(opts, "backend", "udp"); |
3120 |
if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) { |
3121 |
host[0] = 0; |
3122 |
if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) { |
3123 |
goto fail;
|
3124 |
} |
3125 |
} |
3126 |
qemu_opt_set(opts, "host", host);
|
3127 |
qemu_opt_set(opts, "port", port);
|
3128 |
if (p[pos] == '@') { |
3129 |
p += pos + 1;
|
3130 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
3131 |
host[0] = 0; |
3132 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) { |
3133 |
goto fail;
|
3134 |
} |
3135 |
} |
3136 |
qemu_opt_set(opts, "localaddr", host);
|
3137 |
qemu_opt_set(opts, "localport", port);
|
3138 |
} |
3139 |
return opts;
|
3140 |
} |
3141 |
if (strstart(filename, "unix:", &p)) { |
3142 |
qemu_opt_set(opts, "backend", "socket"); |
3143 |
if (qemu_opts_do_parse(opts, p, "path") != 0) |
3144 |
goto fail;
|
3145 |
return opts;
|
3146 |
} |
3147 |
if (strstart(filename, "/dev/parport", NULL) || |
3148 |
strstart(filename, "/dev/ppi", NULL)) { |
3149 |
qemu_opt_set(opts, "backend", "parport"); |
3150 |
qemu_opt_set(opts, "path", filename);
|
3151 |
return opts;
|
3152 |
} |
3153 |
if (strstart(filename, "/dev/", NULL)) { |
3154 |
qemu_opt_set(opts, "backend", "tty"); |
3155 |
qemu_opt_set(opts, "path", filename);
|
3156 |
return opts;
|
3157 |
} |
3158 |
|
3159 |
fail:
|
3160 |
qemu_opts_del(opts); |
3161 |
return NULL; |
3162 |
} |
3163 |
|
3164 |
#ifdef HAVE_CHARDEV_PARPORT
|
3165 |
|
3166 |
static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
|
3167 |
{ |
3168 |
const char *filename = qemu_opt_get(opts, "path"); |
3169 |
int fd;
|
3170 |
|
3171 |
fd = qemu_open(filename, O_RDWR); |
3172 |
if (fd < 0) { |
3173 |
return NULL; |
3174 |
} |
3175 |
return qemu_chr_open_pp_fd(fd);
|
3176 |
} |
3177 |
|
3178 |
#endif
|
3179 |
|
3180 |
typedef struct CharDriver { |
3181 |
const char *name; |
3182 |
CharDriverState *(*open)(QemuOpts *opts); |
3183 |
} CharDriver; |
3184 |
|
3185 |
static GSList *backends;
|
3186 |
|
3187 |
void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *)) |
3188 |
{ |
3189 |
CharDriver *s; |
3190 |
|
3191 |
s = g_malloc0(sizeof(*s));
|
3192 |
s->name = g_strdup(name); |
3193 |
s->open = open; |
3194 |
|
3195 |
backends = g_slist_append(backends, s); |
3196 |
} |
3197 |
|
3198 |
CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts, |
3199 |
void (*init)(struct CharDriverState *s), |
3200 |
Error **errp) |
3201 |
{ |
3202 |
CharDriver *cd; |
3203 |
CharDriverState *chr; |
3204 |
GSList *i; |
3205 |
|
3206 |
if (qemu_opts_id(opts) == NULL) { |
3207 |
error_setg(errp, "chardev: no id specified");
|
3208 |
goto err;
|
3209 |
} |
3210 |
|
3211 |
if (qemu_opt_get(opts, "backend") == NULL) { |
3212 |
error_setg(errp, "chardev: \"%s\" missing backend",
|
3213 |
qemu_opts_id(opts)); |
3214 |
goto err;
|
3215 |
} |
3216 |
for (i = backends; i; i = i->next) {
|
3217 |
cd = i->data; |
3218 |
|
3219 |
if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) { |
3220 |
break;
|
3221 |
} |
3222 |
} |
3223 |
if (i == NULL) { |
3224 |
error_setg(errp, "chardev: backend \"%s\" not found",
|
3225 |
qemu_opt_get(opts, "backend"));
|
3226 |
return NULL; |
3227 |
} |
3228 |
|
3229 |
chr = cd->open(opts); |
3230 |
if (!chr) {
|
3231 |
error_setg(errp, "chardev: opening backend \"%s\" failed",
|
3232 |
qemu_opt_get(opts, "backend"));
|
3233 |
goto err;
|
3234 |
} |
3235 |
|
3236 |
if (!chr->filename)
|
3237 |
chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
|
3238 |
chr->init = init; |
3239 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
3240 |
|
3241 |
if (qemu_opt_get_bool(opts, "mux", 0)) { |
3242 |
CharDriverState *base = chr; |
3243 |
int len = strlen(qemu_opts_id(opts)) + 6; |
3244 |
base->label = g_malloc(len); |
3245 |
snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
|
3246 |
chr = qemu_chr_open_mux(base); |
3247 |
chr->filename = base->filename; |
3248 |
chr->avail_connections = MAX_MUX; |
3249 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
3250 |
} else {
|
3251 |
chr->avail_connections = 1;
|
3252 |
} |
3253 |
chr->label = g_strdup(qemu_opts_id(opts)); |
3254 |
chr->opts = opts; |
3255 |
return chr;
|
3256 |
|
3257 |
err:
|
3258 |
qemu_opts_del(opts); |
3259 |
return NULL; |
3260 |
} |
3261 |
|
3262 |
CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) |
3263 |
{ |
3264 |
const char *p; |
3265 |
CharDriverState *chr; |
3266 |
QemuOpts *opts; |
3267 |
Error *err = NULL;
|
3268 |
|
3269 |
if (strstart(filename, "chardev:", &p)) { |
3270 |
return qemu_chr_find(p);
|
3271 |
} |
3272 |
|
3273 |
opts = qemu_chr_parse_compat(label, filename); |
3274 |
if (!opts)
|
3275 |
return NULL; |
3276 |
|
3277 |
chr = qemu_chr_new_from_opts(opts, init, &err); |
3278 |
if (error_is_set(&err)) {
|
3279 |
fprintf(stderr, "%s\n", error_get_pretty(err));
|
3280 |
error_free(err); |
3281 |
} |
3282 |
if (chr && qemu_opt_get_bool(opts, "mux", 0)) { |
3283 |
monitor_init(chr, MONITOR_USE_READLINE); |
3284 |
} |
3285 |
return chr;
|
3286 |
} |
3287 |
|
3288 |
void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo) |
3289 |
{ |
3290 |
if (chr->chr_set_echo) {
|
3291 |
chr->chr_set_echo(chr, echo); |
3292 |
} |
3293 |
} |
3294 |
|
3295 |
void qemu_chr_fe_open(struct CharDriverState *chr) |
3296 |
{ |
3297 |
if (chr->chr_guest_open) {
|
3298 |
chr->chr_guest_open(chr); |
3299 |
} |
3300 |
} |
3301 |
|
3302 |
void qemu_chr_fe_close(struct CharDriverState *chr) |
3303 |
{ |
3304 |
if (chr->chr_guest_close) {
|
3305 |
chr->chr_guest_close(chr); |
3306 |
} |
3307 |
} |
3308 |
|
3309 |
guint qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond, |
3310 |
GIOFunc func, void *user_data)
|
3311 |
{ |
3312 |
GSource *src; |
3313 |
guint tag; |
3314 |
|
3315 |
if (s->chr_add_watch == NULL) { |
3316 |
return -ENOSYS;
|
3317 |
} |
3318 |
|
3319 |
src = s->chr_add_watch(s, cond); |
3320 |
g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
|
3321 |
tag = g_source_attach(src, NULL);
|
3322 |
g_source_unref(src); |
3323 |
|
3324 |
return tag;
|
3325 |
} |
3326 |
|
3327 |
void qemu_chr_delete(CharDriverState *chr)
|
3328 |
{ |
3329 |
QTAILQ_REMOVE(&chardevs, chr, next); |
3330 |
if (chr->chr_close) {
|
3331 |
chr->chr_close(chr); |
3332 |
} |
3333 |
g_free(chr->filename); |
3334 |
g_free(chr->label); |
3335 |
if (chr->opts) {
|
3336 |
qemu_opts_del(chr->opts); |
3337 |
} |
3338 |
g_free(chr); |
3339 |
} |
3340 |
|
3341 |
ChardevInfoList *qmp_query_chardev(Error **errp) |
3342 |
{ |
3343 |
ChardevInfoList *chr_list = NULL;
|
3344 |
CharDriverState *chr; |
3345 |
|
3346 |
QTAILQ_FOREACH(chr, &chardevs, next) { |
3347 |
ChardevInfoList *info = g_malloc0(sizeof(*info));
|
3348 |
info->value = g_malloc0(sizeof(*info->value));
|
3349 |
info->value->label = g_strdup(chr->label); |
3350 |
info->value->filename = g_strdup(chr->filename); |
3351 |
|
3352 |
info->next = chr_list; |
3353 |
chr_list = info; |
3354 |
} |
3355 |
|
3356 |
return chr_list;
|
3357 |
} |
3358 |
|
3359 |
CharDriverState *qemu_chr_find(const char *name) |
3360 |
{ |
3361 |
CharDriverState *chr; |
3362 |
|
3363 |
QTAILQ_FOREACH(chr, &chardevs, next) { |
3364 |
if (strcmp(chr->label, name) != 0) |
3365 |
continue;
|
3366 |
return chr;
|
3367 |
} |
3368 |
return NULL; |
3369 |
} |
3370 |
|
3371 |
/* Get a character (serial) device interface. */
|
3372 |
CharDriverState *qemu_char_get_next_serial(void)
|
3373 |
{ |
3374 |
static int next_serial; |
3375 |
|
3376 |
/* FIXME: This function needs to go away: use chardev properties! */
|
3377 |
return serial_hds[next_serial++];
|
3378 |
} |
3379 |
|
3380 |
QemuOptsList qemu_chardev_opts = { |
3381 |
.name = "chardev",
|
3382 |
.implied_opt_name = "backend",
|
3383 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head), |
3384 |
.desc = { |
3385 |
{ |
3386 |
.name = "backend",
|
3387 |
.type = QEMU_OPT_STRING, |
3388 |
},{ |
3389 |
.name = "path",
|
3390 |
.type = QEMU_OPT_STRING, |
3391 |
},{ |
3392 |
.name = "host",
|
3393 |
.type = QEMU_OPT_STRING, |
3394 |
},{ |
3395 |
.name = "port",
|
3396 |
.type = QEMU_OPT_STRING, |
3397 |
},{ |
3398 |
.name = "localaddr",
|
3399 |
.type = QEMU_OPT_STRING, |
3400 |
},{ |
3401 |
.name = "localport",
|
3402 |
.type = QEMU_OPT_STRING, |
3403 |
},{ |
3404 |
.name = "to",
|
3405 |
.type = QEMU_OPT_NUMBER, |
3406 |
},{ |
3407 |
.name = "ipv4",
|
3408 |
.type = QEMU_OPT_BOOL, |
3409 |
},{ |
3410 |
.name = "ipv6",
|
3411 |
.type = QEMU_OPT_BOOL, |
3412 |
},{ |
3413 |
.name = "wait",
|
3414 |
.type = QEMU_OPT_BOOL, |
3415 |
},{ |
3416 |
.name = "server",
|
3417 |
.type = QEMU_OPT_BOOL, |
3418 |
},{ |
3419 |
.name = "delay",
|
3420 |
.type = QEMU_OPT_BOOL, |
3421 |
},{ |
3422 |
.name = "telnet",
|
3423 |
.type = QEMU_OPT_BOOL, |
3424 |
},{ |
3425 |
.name = "width",
|
3426 |
.type = QEMU_OPT_NUMBER, |
3427 |
},{ |
3428 |
.name = "height",
|
3429 |
.type = QEMU_OPT_NUMBER, |
3430 |
},{ |
3431 |
.name = "cols",
|
3432 |
.type = QEMU_OPT_NUMBER, |
3433 |
},{ |
3434 |
.name = "rows",
|
3435 |
.type = QEMU_OPT_NUMBER, |
3436 |
},{ |
3437 |
.name = "mux",
|
3438 |
.type = QEMU_OPT_BOOL, |
3439 |
},{ |
3440 |
.name = "signal",
|
3441 |
.type = QEMU_OPT_BOOL, |
3442 |
},{ |
3443 |
.name = "name",
|
3444 |
.type = QEMU_OPT_STRING, |
3445 |
},{ |
3446 |
.name = "debug",
|
3447 |
.type = QEMU_OPT_NUMBER, |
3448 |
},{ |
3449 |
.name = "size",
|
3450 |
.type = QEMU_OPT_SIZE, |
3451 |
}, |
3452 |
{ /* end of list */ }
|
3453 |
}, |
3454 |
}; |
3455 |
|
3456 |
#ifdef _WIN32
|
3457 |
|
3458 |
static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
|
3459 |
{ |
3460 |
HANDLE out; |
3461 |
|
3462 |
if (file->in) {
|
3463 |
error_setg(errp, "input file not supported");
|
3464 |
return NULL; |
3465 |
} |
3466 |
|
3467 |
out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
3468 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
3469 |
if (out == INVALID_HANDLE_VALUE) {
|
3470 |
error_setg(errp, "open %s failed", file->out);
|
3471 |
return NULL; |
3472 |
} |
3473 |
return qemu_chr_open_win_file(out);
|
3474 |
} |
3475 |
|
3476 |
static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
|
3477 |
Error **errp) |
3478 |
{ |
3479 |
return qemu_chr_open_win_path(serial->device);
|
3480 |
} |
3481 |
|
3482 |
static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
|
3483 |
Error **errp) |
3484 |
{ |
3485 |
error_setg(errp, "character device backend type 'parallel' not supported");
|
3486 |
return NULL; |
3487 |
} |
3488 |
|
3489 |
#else /* WIN32 */ |
3490 |
|
3491 |
static int qmp_chardev_open_file_source(char *src, int flags, |
3492 |
Error **errp) |
3493 |
{ |
3494 |
int fd = -1; |
3495 |
|
3496 |
TFR(fd = qemu_open(src, flags, 0666));
|
3497 |
if (fd == -1) { |
3498 |
error_setg(errp, "open %s: %s", src, strerror(errno));
|
3499 |
} |
3500 |
return fd;
|
3501 |
} |
3502 |
|
3503 |
static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
|
3504 |
{ |
3505 |
int flags, in = -1, out = -1; |
3506 |
|
3507 |
flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY; |
3508 |
out = qmp_chardev_open_file_source(file->out, flags, errp); |
3509 |
if (error_is_set(errp)) {
|
3510 |
return NULL; |
3511 |
} |
3512 |
|
3513 |
if (file->in) {
|
3514 |
flags = O_RDONLY; |
3515 |
in = qmp_chardev_open_file_source(file->in, flags, errp); |
3516 |
if (error_is_set(errp)) {
|
3517 |
qemu_close(out); |
3518 |
return NULL; |
3519 |
} |
3520 |
} |
3521 |
|
3522 |
return qemu_chr_open_fd(in, out);
|
3523 |
} |
3524 |
|
3525 |
static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
|
3526 |
Error **errp) |
3527 |
{ |
3528 |
#ifdef HAVE_CHARDEV_TTY
|
3529 |
int fd;
|
3530 |
|
3531 |
fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp); |
3532 |
if (error_is_set(errp)) {
|
3533 |
return NULL; |
3534 |
} |
3535 |
socket_set_nonblock(fd); |
3536 |
return qemu_chr_open_tty_fd(fd);
|
3537 |
#else
|
3538 |
error_setg(errp, "character device backend type 'serial' not supported");
|
3539 |
return NULL; |
3540 |
#endif
|
3541 |
} |
3542 |
|
3543 |
static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
|
3544 |
Error **errp) |
3545 |
{ |
3546 |
#ifdef HAVE_CHARDEV_PARPORT
|
3547 |
int fd;
|
3548 |
|
3549 |
fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp); |
3550 |
if (error_is_set(errp)) {
|
3551 |
return NULL; |
3552 |
} |
3553 |
return qemu_chr_open_pp_fd(fd);
|
3554 |
#else
|
3555 |
error_setg(errp, "character device backend type 'parallel' not supported");
|
3556 |
return NULL; |
3557 |
#endif
|
3558 |
} |
3559 |
|
3560 |
#endif /* WIN32 */ |
3561 |
|
3562 |
static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
|
3563 |
Error **errp) |
3564 |
{ |
3565 |
SocketAddress *addr = sock->addr; |
3566 |
bool do_nodelay = sock->has_nodelay ? sock->nodelay : false; |
3567 |
bool is_listen = sock->has_server ? sock->server : true; |
3568 |
bool is_telnet = sock->has_telnet ? sock->telnet : false; |
3569 |
bool is_waitconnect = sock->has_wait ? sock->wait : false; |
3570 |
int fd;
|
3571 |
|
3572 |
if (is_listen) {
|
3573 |
fd = socket_listen(addr, errp); |
3574 |
} else {
|
3575 |
fd = socket_connect(addr, errp, NULL, NULL); |
3576 |
} |
3577 |
if (error_is_set(errp)) {
|
3578 |
return NULL; |
3579 |
} |
3580 |
return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
|
3581 |
is_telnet, is_waitconnect, errp); |
3582 |
} |
3583 |
|
3584 |
ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend, |
3585 |
Error **errp) |
3586 |
{ |
3587 |
ChardevReturn *ret = g_new0(ChardevReturn, 1);
|
3588 |
CharDriverState *chr = NULL;
|
3589 |
|
3590 |
chr = qemu_chr_find(id); |
3591 |
if (chr) {
|
3592 |
error_setg(errp, "Chardev '%s' already exists", id);
|
3593 |
g_free(ret); |
3594 |
return NULL; |
3595 |
} |
3596 |
|
3597 |
switch (backend->kind) {
|
3598 |
case CHARDEV_BACKEND_KIND_FILE:
|
3599 |
chr = qmp_chardev_open_file(backend->file, errp); |
3600 |
break;
|
3601 |
case CHARDEV_BACKEND_KIND_SERIAL:
|
3602 |
chr = qmp_chardev_open_serial(backend->serial, errp); |
3603 |
break;
|
3604 |
case CHARDEV_BACKEND_KIND_PARALLEL:
|
3605 |
chr = qmp_chardev_open_parallel(backend->parallel, errp); |
3606 |
break;
|
3607 |
case CHARDEV_BACKEND_KIND_SOCKET:
|
3608 |
chr = qmp_chardev_open_socket(backend->socket, errp); |
3609 |
break;
|
3610 |
#ifdef HAVE_CHARDEV_TTY
|
3611 |
case CHARDEV_BACKEND_KIND_PTY:
|
3612 |
{ |
3613 |
/* qemu_chr_open_pty sets "path" in opts */
|
3614 |
QemuOpts *opts; |
3615 |
opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
|
3616 |
chr = qemu_chr_open_pty(opts); |
3617 |
ret->pty = g_strdup(qemu_opt_get(opts, "path"));
|
3618 |
ret->has_pty = true;
|
3619 |
qemu_opts_del(opts); |
3620 |
break;
|
3621 |
} |
3622 |
#endif
|
3623 |
case CHARDEV_BACKEND_KIND_NULL:
|
3624 |
chr = qemu_chr_open_null(NULL);
|
3625 |
break;
|
3626 |
default:
|
3627 |
error_setg(errp, "unknown chardev backend (%d)", backend->kind);
|
3628 |
break;
|
3629 |
} |
3630 |
|
3631 |
if (chr == NULL && !error_is_set(errp)) { |
3632 |
error_setg(errp, "Failed to create chardev");
|
3633 |
} |
3634 |
if (chr) {
|
3635 |
chr->label = g_strdup(id); |
3636 |
chr->avail_connections = 1;
|
3637 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
3638 |
return ret;
|
3639 |
} else {
|
3640 |
g_free(ret); |
3641 |
return NULL; |
3642 |
} |
3643 |
} |
3644 |
|
3645 |
void qmp_chardev_remove(const char *id, Error **errp) |
3646 |
{ |
3647 |
CharDriverState *chr; |
3648 |
|
3649 |
chr = qemu_chr_find(id); |
3650 |
if (NULL == chr) { |
3651 |
error_setg(errp, "Chardev '%s' not found", id);
|
3652 |
return;
|
3653 |
} |
3654 |
if (chr->chr_can_read || chr->chr_read ||
|
3655 |
chr->chr_event || chr->handler_opaque) { |
3656 |
error_setg(errp, "Chardev '%s' is busy", id);
|
3657 |
return;
|
3658 |
} |
3659 |
qemu_chr_delete(chr); |
3660 |
} |
3661 |
|
3662 |
static void register_types(void) |
3663 |
{ |
3664 |
register_char_driver("null", qemu_chr_open_null);
|
3665 |
register_char_driver("socket", qemu_chr_open_socket);
|
3666 |
register_char_driver("udp", qemu_chr_open_udp);
|
3667 |
register_char_driver("msmouse", qemu_chr_open_msmouse);
|
3668 |
register_char_driver("vc", vc_init);
|
3669 |
register_char_driver("memory", qemu_chr_open_ringbuf);
|
3670 |
#ifdef _WIN32
|
3671 |
register_char_driver("file", qemu_chr_open_win_file_out);
|
3672 |
register_char_driver("pipe", qemu_chr_open_win_pipe);
|
3673 |
register_char_driver("console", qemu_chr_open_win_con);
|
3674 |
register_char_driver("serial", qemu_chr_open_win);
|
3675 |
register_char_driver("stdio", qemu_chr_open_win_stdio);
|
3676 |
#else
|
3677 |
register_char_driver("file", qemu_chr_open_file_out);
|
3678 |
register_char_driver("pipe", qemu_chr_open_pipe);
|
3679 |
register_char_driver("stdio", qemu_chr_open_stdio);
|
3680 |
#endif
|
3681 |
#ifdef CONFIG_BRLAPI
|
3682 |
register_char_driver("braille", chr_baum_init);
|
3683 |
#endif
|
3684 |
#ifdef HAVE_CHARDEV_TTY
|
3685 |
register_char_driver("tty", qemu_chr_open_tty);
|
3686 |
register_char_driver("serial", qemu_chr_open_tty);
|
3687 |
register_char_driver("pty", qemu_chr_open_pty);
|
3688 |
#endif
|
3689 |
#ifdef HAVE_CHARDEV_PARPORT
|
3690 |
register_char_driver("parallel", qemu_chr_open_pp);
|
3691 |
register_char_driver("parport", qemu_chr_open_pp);
|
3692 |
#endif
|
3693 |
} |
3694 |
|
3695 |
type_init(register_types); |