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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" |
| 28 |
#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 "qmp-commands.h" |
| 32 |
|
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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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|
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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> |
| 44 |
#include <sys/mman.h> |
| 45 |
#include <sys/ioctl.h> |
| 46 |
#include <sys/resource.h> |
| 47 |
#include <sys/socket.h> |
| 48 |
#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> |
| 54 |
#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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|
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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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|
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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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|
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static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
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QTAILQ_HEAD_INITIALIZER(chardevs); |
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|
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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->be_open = 1;
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break;
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case CHR_EVENT_CLOSED:
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s->be_open = 0;
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break;
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} |
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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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|
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static gboolean qemu_chr_be_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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|
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void qemu_chr_be_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_be_generic_open_bh, s); |
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} |
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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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|
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int qemu_chr_fe_write_all(CharDriverState *s, const uint8_t *buf, int len) |
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{
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int offset = 0; |
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int res;
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while (offset < len) {
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do {
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res = s->chr_write(s, buf + offset, len - offset); |
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if (res == -1 && errno == EAGAIN) { |
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g_usleep(100);
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} |
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} while (res == -1 && errno == EAGAIN); |
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if (res == 0) { |
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break;
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} |
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if (res < 0) { |
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return res;
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} |
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offset += res; |
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} |
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return offset;
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} |
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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int fe_open;
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|
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if (!opaque && !fd_can_read && !fd_read && !fd_event) {
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fe_open = 0;
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} else {
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fe_open = 1;
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} |
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s->chr_can_read = fd_can_read; |
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s->chr_read = fd_read; |
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s->chr_event = fd_event; |
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s->handler_opaque = opaque; |
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if (s->chr_update_read_handler)
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s->chr_update_read_handler(s); |
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|
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if (!s->explicit_fe_open) {
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qemu_chr_fe_set_open(s, fe_open); |
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} |
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|
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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 (fe_open && s->be_open) {
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qemu_chr_be_generic_open(s); |
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} |
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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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|
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static CharDriverState *qemu_chr_open_null(void) |
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{
|
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CharDriverState *chr; |
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|
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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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|
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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; |
| 287 |
|
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|
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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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|
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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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|
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ti = qemu_get_clock_ms(rt_clock); |
| 306 |
if (d->timestamps_start == -1) |
| 307 |
d->timestamps_start = ti; |
| 308 |
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, |
| 314 |
secs % 60,
|
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(int)(ti % 1000)); |
| 316 |
d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1)); |
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d->linestart = 0;
|
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} |
| 319 |
ret += d->drv->chr_write(d->drv, buf+i, 1);
|
| 320 |
if (buf[i] == '\n') { |
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d->linestart = 1;
|
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} |
| 323 |
} |
| 324 |
} |
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return ret;
|
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} |
| 327 |
|
| 328 |
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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}; |
| 338 |
|
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int term_escape_char = 0x01; /* ctrl-a is used for escape */ |
| 340 |
static void mux_print_help(CharDriverState *chr) |
| 341 |
{
|
| 342 |
int i, j;
|
| 343 |
char ebuf[15] = "Escape-Char"; |
| 344 |
char cbuf[50] = "\n\r"; |
| 345 |
|
| 346 |
if (term_escape_char > 0 && term_escape_char < 26) { |
| 347 |
snprintf(cbuf, sizeof(cbuf), "\n\r"); |
| 348 |
snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a'); |
| 349 |
} else {
|
| 350 |
snprintf(cbuf, sizeof(cbuf),
|
| 351 |
"\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
|
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term_escape_char); |
| 353 |
} |
| 354 |
chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf)); |
| 355 |
for (i = 0; mux_help[i] != NULL; i++) { |
| 356 |
for (j=0; mux_help[i][j] != '\0'; j++) { |
| 357 |
if (mux_help[i][j] == '%') |
| 358 |
chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf)); |
| 359 |
else
|
| 360 |
chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
|
| 361 |
} |
| 362 |
} |
| 363 |
} |
| 364 |
|
| 365 |
static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event) |
| 366 |
{
|
| 367 |
if (d->chr_event[mux_nr])
|
| 368 |
d->chr_event[mux_nr](d->ext_opaque[mux_nr], event); |
| 369 |
} |
| 370 |
|
| 371 |
static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
| 372 |
{
|
| 373 |
if (d->term_got_escape) {
|
| 374 |
d->term_got_escape = 0;
|
| 375 |
if (ch == term_escape_char)
|
| 376 |
goto send_char;
|
| 377 |
switch(ch) {
|
| 378 |
case '?': |
| 379 |
case 'h': |
| 380 |
mux_print_help(chr); |
| 381 |
break;
|
| 382 |
case 'x': |
| 383 |
{
|
| 384 |
const char *term = "QEMU: Terminated\n\r"; |
| 385 |
chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
| 386 |
exit(0);
|
| 387 |
break;
|
| 388 |
} |
| 389 |
case 's': |
| 390 |
bdrv_commit_all(); |
| 391 |
break;
|
| 392 |
case 'b': |
| 393 |
qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
| 394 |
break;
|
| 395 |
case 'c': |
| 396 |
/* Switch to the next registered device */
|
| 397 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
| 398 |
d->focus++; |
| 399 |
if (d->focus >= d->mux_cnt)
|
| 400 |
d->focus = 0;
|
| 401 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
| 402 |
break;
|
| 403 |
case 't': |
| 404 |
d->timestamps = !d->timestamps; |
| 405 |
d->timestamps_start = -1;
|
| 406 |
d->linestart = 0;
|
| 407 |
break;
|
| 408 |
} |
| 409 |
} else if (ch == term_escape_char) { |
| 410 |
d->term_got_escape = 1;
|
| 411 |
} else {
|
| 412 |
send_char:
|
| 413 |
return 1; |
| 414 |
} |
| 415 |
return 0; |
| 416 |
} |
| 417 |
|
| 418 |
static void mux_chr_accept_input(CharDriverState *chr) |
| 419 |
{
|
| 420 |
MuxDriver *d = chr->opaque; |
| 421 |
int m = d->focus;
|
| 422 |
|
| 423 |
while (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], |
| 427 |
&d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
|
| 428 |
} |
| 429 |
} |
| 430 |
|
| 431 |
static int mux_chr_can_read(void *opaque) |
| 432 |
{
|
| 433 |
CharDriverState *chr = opaque; |
| 434 |
MuxDriver *d = chr->opaque; |
| 435 |
int m = d->focus;
|
| 436 |
|
| 437 |
if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
|
| 438 |
return 1; |
| 439 |
if (d->chr_can_read[m])
|
| 440 |
return d->chr_can_read[m](d->ext_opaque[m]);
|
| 441 |
return 0; |
| 442 |
} |
| 443 |
|
| 444 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
| 445 |
{
|
| 446 |
CharDriverState *chr = opaque; |
| 447 |
MuxDriver *d = chr->opaque; |
| 448 |
int m = d->focus;
|
| 449 |
int i;
|
| 450 |
|
| 451 |
mux_chr_accept_input (opaque); |
| 452 |
|
| 453 |
for(i = 0; i < size; i++) |
| 454 |
if (mux_proc_byte(chr, d, buf[i])) {
|
| 455 |
if (d->prod[m] == d->cons[m] &&
|
| 456 |
d->chr_can_read[m] && |
| 457 |
d->chr_can_read[m](d->ext_opaque[m])) |
| 458 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
| 459 |
else
|
| 460 |
d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i]; |
| 461 |
} |
| 462 |
} |
| 463 |
|
| 464 |
static void mux_chr_event(void *opaque, int event) |
| 465 |
{
|
| 466 |
CharDriverState *chr = opaque; |
| 467 |
MuxDriver *d = chr->opaque; |
| 468 |
int i;
|
| 469 |
|
| 470 |
/* Send the event to all registered listeners */
|
| 471 |
for (i = 0; i < d->mux_cnt; i++) |
| 472 |
mux_chr_send_event(d, i, event); |
| 473 |
} |
| 474 |
|
| 475 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
| 476 |
{
|
| 477 |
MuxDriver *d = chr->opaque; |
| 478 |
|
| 479 |
if (d->mux_cnt >= MAX_MUX) {
|
| 480 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
| 481 |
return;
|
| 482 |
} |
| 483 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
| 484 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
| 485 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
| 486 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
| 487 |
/* Fix up the real driver with mux routines */
|
| 488 |
if (d->mux_cnt == 0) { |
| 489 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
| 490 |
mux_chr_event, chr); |
| 491 |
} |
| 492 |
if (d->focus != -1) { |
| 493 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
| 494 |
} |
| 495 |
d->focus = d->mux_cnt; |
| 496 |
d->mux_cnt++; |
| 497 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
| 498 |
} |
| 499 |
|
| 500 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
| 501 |
{
|
| 502 |
CharDriverState *chr; |
| 503 |
MuxDriver *d; |
| 504 |
|
| 505 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 506 |
d = g_malloc0(sizeof(MuxDriver));
|
| 507 |
|
| 508 |
chr->opaque = d; |
| 509 |
d->drv = drv; |
| 510 |
d->focus = -1;
|
| 511 |
chr->chr_write = mux_chr_write; |
| 512 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
| 513 |
chr->chr_accept_input = mux_chr_accept_input; |
| 514 |
/* Frontend guest-open / -close notification is not support with muxes */
|
| 515 |
chr->chr_set_fe_open = NULL;
|
| 516 |
|
| 517 |
/* Muxes are always open on creation */
|
| 518 |
qemu_chr_be_generic_open(chr); |
| 519 |
|
| 520 |
return chr;
|
| 521 |
} |
| 522 |
|
| 523 |
|
| 524 |
#ifdef _WIN32
|
| 525 |
int send_all(int fd, const void *buf, int len1) |
| 526 |
{
|
| 527 |
int ret, len;
|
| 528 |
|
| 529 |
len = len1; |
| 530 |
while (len > 0) { |
| 531 |
ret = send(fd, buf, len, 0);
|
| 532 |
if (ret < 0) { |
| 533 |
errno = WSAGetLastError(); |
| 534 |
if (errno != WSAEWOULDBLOCK) {
|
| 535 |
return -1; |
| 536 |
} |
| 537 |
} else if (ret == 0) { |
| 538 |
break;
|
| 539 |
} else {
|
| 540 |
buf += ret; |
| 541 |
len -= ret; |
| 542 |
} |
| 543 |
} |
| 544 |
return len1 - len;
|
| 545 |
} |
| 546 |
|
| 547 |
#else
|
| 548 |
|
| 549 |
int send_all(int fd, const void *_buf, int len1) |
| 550 |
{
|
| 551 |
int ret, len;
|
| 552 |
const uint8_t *buf = _buf;
|
| 553 |
|
| 554 |
len = len1; |
| 555 |
while (len > 0) { |
| 556 |
ret = write(fd, buf, len); |
| 557 |
if (ret < 0) { |
| 558 |
if (errno != EINTR && errno != EAGAIN)
|
| 559 |
return -1; |
| 560 |
} else if (ret == 0) { |
| 561 |
break;
|
| 562 |
} else {
|
| 563 |
buf += ret; |
| 564 |
len -= ret; |
| 565 |
} |
| 566 |
} |
| 567 |
return len1 - len;
|
| 568 |
} |
| 569 |
|
| 570 |
int recv_all(int fd, void *_buf, int len1, bool single_read) |
| 571 |
{
|
| 572 |
int ret, len;
|
| 573 |
uint8_t *buf = _buf; |
| 574 |
|
| 575 |
len = len1; |
| 576 |
while ((len > 0) && (ret = read(fd, buf, len)) != 0) { |
| 577 |
if (ret < 0) { |
| 578 |
if (errno != EINTR && errno != EAGAIN) {
|
| 579 |
return -1; |
| 580 |
} |
| 581 |
continue;
|
| 582 |
} else {
|
| 583 |
if (single_read) {
|
| 584 |
return ret;
|
| 585 |
} |
| 586 |
buf += ret; |
| 587 |
len -= ret; |
| 588 |
} |
| 589 |
} |
| 590 |
return len1 - len;
|
| 591 |
} |
| 592 |
|
| 593 |
#endif /* !_WIN32 */ |
| 594 |
|
| 595 |
typedef struct IOWatchPoll |
| 596 |
{
|
| 597 |
GSource parent; |
| 598 |
|
| 599 |
GSource *src; |
| 600 |
|
| 601 |
IOCanReadHandler *fd_can_read; |
| 602 |
void *opaque;
|
| 603 |
} IOWatchPoll; |
| 604 |
|
| 605 |
static IOWatchPoll *io_watch_poll_from_source(GSource *source)
|
| 606 |
{
|
| 607 |
return container_of(source, IOWatchPoll, parent);
|
| 608 |
} |
| 609 |
|
| 610 |
static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_)
|
| 611 |
{
|
| 612 |
IOWatchPoll *iwp = io_watch_poll_from_source(source); |
| 613 |
bool now_active = iwp->fd_can_read(iwp->opaque) > 0; |
| 614 |
bool was_active = g_source_get_context(iwp->src) != NULL; |
| 615 |
if (was_active == now_active) {
|
| 616 |
return FALSE;
|
| 617 |
} |
| 618 |
|
| 619 |
if (now_active) {
|
| 620 |
g_source_attach(iwp->src, NULL);
|
| 621 |
} else {
|
| 622 |
g_source_remove(g_source_get_id(iwp->src)); |
| 623 |
} |
| 624 |
return FALSE;
|
| 625 |
} |
| 626 |
|
| 627 |
static gboolean io_watch_poll_check(GSource *source)
|
| 628 |
{
|
| 629 |
return FALSE;
|
| 630 |
} |
| 631 |
|
| 632 |
static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
|
| 633 |
gpointer user_data) |
| 634 |
{
|
| 635 |
abort(); |
| 636 |
} |
| 637 |
|
| 638 |
static void io_watch_poll_finalize(GSource *source) |
| 639 |
{
|
| 640 |
IOWatchPoll *iwp = io_watch_poll_from_source(source); |
| 641 |
g_source_unref(iwp->src); |
| 642 |
} |
| 643 |
|
| 644 |
static GSourceFuncs io_watch_poll_funcs = {
|
| 645 |
.prepare = io_watch_poll_prepare, |
| 646 |
.check = io_watch_poll_check, |
| 647 |
.dispatch = io_watch_poll_dispatch, |
| 648 |
.finalize = io_watch_poll_finalize, |
| 649 |
}; |
| 650 |
|
| 651 |
/* Can only be used for read */
|
| 652 |
static guint io_add_watch_poll(GIOChannel *channel,
|
| 653 |
IOCanReadHandler *fd_can_read, |
| 654 |
GIOFunc fd_read, |
| 655 |
gpointer user_data) |
| 656 |
{
|
| 657 |
IOWatchPoll *iwp; |
| 658 |
|
| 659 |
iwp = (IOWatchPoll *) g_source_new(&io_watch_poll_funcs, sizeof(IOWatchPoll));
|
| 660 |
iwp->fd_can_read = fd_can_read; |
| 661 |
iwp->opaque = user_data; |
| 662 |
iwp->src = g_io_create_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP); |
| 663 |
g_source_set_callback(iwp->src, (GSourceFunc)fd_read, user_data, NULL);
|
| 664 |
|
| 665 |
return g_source_attach(&iwp->parent, NULL); |
| 666 |
} |
| 667 |
|
| 668 |
#ifndef _WIN32
|
| 669 |
static GIOChannel *io_channel_from_fd(int fd) |
| 670 |
{
|
| 671 |
GIOChannel *chan; |
| 672 |
|
| 673 |
if (fd == -1) { |
| 674 |
return NULL; |
| 675 |
} |
| 676 |
|
| 677 |
chan = g_io_channel_unix_new(fd); |
| 678 |
|
| 679 |
g_io_channel_set_encoding(chan, NULL, NULL); |
| 680 |
g_io_channel_set_buffered(chan, FALSE); |
| 681 |
|
| 682 |
return chan;
|
| 683 |
} |
| 684 |
#endif
|
| 685 |
|
| 686 |
static GIOChannel *io_channel_from_socket(int fd) |
| 687 |
{
|
| 688 |
GIOChannel *chan; |
| 689 |
|
| 690 |
if (fd == -1) { |
| 691 |
return NULL; |
| 692 |
} |
| 693 |
|
| 694 |
#ifdef _WIN32
|
| 695 |
chan = g_io_channel_win32_new_socket(fd); |
| 696 |
#else
|
| 697 |
chan = g_io_channel_unix_new(fd); |
| 698 |
#endif
|
| 699 |
|
| 700 |
g_io_channel_set_encoding(chan, NULL, NULL); |
| 701 |
g_io_channel_set_buffered(chan, FALSE); |
| 702 |
|
| 703 |
return chan;
|
| 704 |
} |
| 705 |
|
| 706 |
static int io_channel_send(GIOChannel *fd, const void *buf, size_t len) |
| 707 |
{
|
| 708 |
GIOStatus status; |
| 709 |
size_t offset; |
| 710 |
|
| 711 |
offset = 0;
|
| 712 |
while (offset < len) {
|
| 713 |
gsize bytes_written; |
| 714 |
|
| 715 |
status = g_io_channel_write_chars(fd, buf + offset, len - offset, |
| 716 |
&bytes_written, NULL);
|
| 717 |
if (status != G_IO_STATUS_NORMAL) {
|
| 718 |
if (status == G_IO_STATUS_AGAIN) {
|
| 719 |
/* If we've written any data, return a partial write. */
|
| 720 |
if (offset) {
|
| 721 |
break;
|
| 722 |
} |
| 723 |
errno = EAGAIN; |
| 724 |
} else {
|
| 725 |
errno = EINVAL; |
| 726 |
} |
| 727 |
|
| 728 |
return -1; |
| 729 |
} else if (status == G_IO_STATUS_EOF) { |
| 730 |
break;
|
| 731 |
} |
| 732 |
|
| 733 |
offset += bytes_written; |
| 734 |
} |
| 735 |
|
| 736 |
return offset;
|
| 737 |
} |
| 738 |
|
| 739 |
#ifndef _WIN32
|
| 740 |
|
| 741 |
typedef struct FDCharDriver { |
| 742 |
CharDriverState *chr; |
| 743 |
GIOChannel *fd_in, *fd_out; |
| 744 |
guint fd_in_tag; |
| 745 |
int max_size;
|
| 746 |
QTAILQ_ENTRY(FDCharDriver) node; |
| 747 |
} FDCharDriver; |
| 748 |
|
| 749 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 750 |
{
|
| 751 |
FDCharDriver *s = chr->opaque; |
| 752 |
|
| 753 |
return io_channel_send(s->fd_out, buf, len);
|
| 754 |
} |
| 755 |
|
| 756 |
static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
| 757 |
{
|
| 758 |
CharDriverState *chr = opaque; |
| 759 |
FDCharDriver *s = chr->opaque; |
| 760 |
int len;
|
| 761 |
uint8_t buf[READ_BUF_LEN]; |
| 762 |
GIOStatus status; |
| 763 |
gsize bytes_read; |
| 764 |
|
| 765 |
len = sizeof(buf);
|
| 766 |
if (len > s->max_size) {
|
| 767 |
len = s->max_size; |
| 768 |
} |
| 769 |
if (len == 0) { |
| 770 |
return FALSE;
|
| 771 |
} |
| 772 |
|
| 773 |
status = g_io_channel_read_chars(chan, (gchar *)buf, |
| 774 |
len, &bytes_read, NULL);
|
| 775 |
if (status == G_IO_STATUS_EOF) {
|
| 776 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 777 |
return FALSE;
|
| 778 |
} |
| 779 |
if (status == G_IO_STATUS_NORMAL) {
|
| 780 |
qemu_chr_be_write(chr, buf, bytes_read); |
| 781 |
} |
| 782 |
|
| 783 |
return TRUE;
|
| 784 |
} |
| 785 |
|
| 786 |
static int fd_chr_read_poll(void *opaque) |
| 787 |
{
|
| 788 |
CharDriverState *chr = opaque; |
| 789 |
FDCharDriver *s = chr->opaque; |
| 790 |
|
| 791 |
s->max_size = qemu_chr_be_can_write(chr); |
| 792 |
return s->max_size;
|
| 793 |
} |
| 794 |
|
| 795 |
static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond)
|
| 796 |
{
|
| 797 |
FDCharDriver *s = chr->opaque; |
| 798 |
return g_io_create_watch(s->fd_out, cond);
|
| 799 |
} |
| 800 |
|
| 801 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
| 802 |
{
|
| 803 |
FDCharDriver *s = chr->opaque; |
| 804 |
|
| 805 |
if (s->fd_in_tag) {
|
| 806 |
g_source_remove(s->fd_in_tag); |
| 807 |
} |
| 808 |
|
| 809 |
if (s->fd_in) {
|
| 810 |
s->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, fd_chr_read, chr); |
| 811 |
} |
| 812 |
} |
| 813 |
|
| 814 |
static void fd_chr_close(struct CharDriverState *chr) |
| 815 |
{
|
| 816 |
FDCharDriver *s = chr->opaque; |
| 817 |
|
| 818 |
if (s->fd_in_tag) {
|
| 819 |
g_source_remove(s->fd_in_tag); |
| 820 |
s->fd_in_tag = 0;
|
| 821 |
} |
| 822 |
|
| 823 |
if (s->fd_in) {
|
| 824 |
g_io_channel_unref(s->fd_in); |
| 825 |
} |
| 826 |
if (s->fd_out) {
|
| 827 |
g_io_channel_unref(s->fd_out); |
| 828 |
} |
| 829 |
|
| 830 |
g_free(s); |
| 831 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 832 |
} |
| 833 |
|
| 834 |
/* open a character device to a unix fd */
|
| 835 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
| 836 |
{
|
| 837 |
CharDriverState *chr; |
| 838 |
FDCharDriver *s; |
| 839 |
|
| 840 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 841 |
s = g_malloc0(sizeof(FDCharDriver));
|
| 842 |
s->fd_in = io_channel_from_fd(fd_in); |
| 843 |
s->fd_out = io_channel_from_fd(fd_out); |
| 844 |
fcntl(fd_out, F_SETFL, O_NONBLOCK); |
| 845 |
s->chr = chr; |
| 846 |
chr->opaque = s; |
| 847 |
chr->chr_add_watch = fd_chr_add_watch; |
| 848 |
chr->chr_write = fd_chr_write; |
| 849 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
| 850 |
chr->chr_close = fd_chr_close; |
| 851 |
|
| 852 |
qemu_chr_be_generic_open(chr); |
| 853 |
|
| 854 |
return chr;
|
| 855 |
} |
| 856 |
|
| 857 |
static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
|
| 858 |
{
|
| 859 |
int fd_in, fd_out;
|
| 860 |
char filename_in[256], filename_out[256]; |
| 861 |
const char *filename = opts->device; |
| 862 |
|
| 863 |
if (filename == NULL) { |
| 864 |
fprintf(stderr, "chardev: pipe: no filename given\n");
|
| 865 |
return NULL; |
| 866 |
} |
| 867 |
|
| 868 |
snprintf(filename_in, 256, "%s.in", filename); |
| 869 |
snprintf(filename_out, 256, "%s.out", filename); |
| 870 |
TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY)); |
| 871 |
TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY)); |
| 872 |
if (fd_in < 0 || fd_out < 0) { |
| 873 |
if (fd_in >= 0) |
| 874 |
close(fd_in); |
| 875 |
if (fd_out >= 0) |
| 876 |
close(fd_out); |
| 877 |
TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY)); |
| 878 |
if (fd_in < 0) { |
| 879 |
return NULL; |
| 880 |
} |
| 881 |
} |
| 882 |
return qemu_chr_open_fd(fd_in, fd_out);
|
| 883 |
} |
| 884 |
|
| 885 |
/* init terminal so that we can grab keys */
|
| 886 |
static struct termios oldtty; |
| 887 |
static int old_fd0_flags; |
| 888 |
static bool stdio_allow_signal; |
| 889 |
|
| 890 |
static void term_exit(void) |
| 891 |
{
|
| 892 |
tcsetattr (0, TCSANOW, &oldtty);
|
| 893 |
fcntl(0, F_SETFL, old_fd0_flags);
|
| 894 |
} |
| 895 |
|
| 896 |
static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo) |
| 897 |
{
|
| 898 |
struct termios tty;
|
| 899 |
|
| 900 |
tty = oldtty; |
| 901 |
if (!echo) {
|
| 902 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 903 |
|INLCR|IGNCR|ICRNL|IXON); |
| 904 |
tty.c_oflag |= OPOST; |
| 905 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
| 906 |
tty.c_cflag &= ~(CSIZE|PARENB); |
| 907 |
tty.c_cflag |= CS8; |
| 908 |
tty.c_cc[VMIN] = 1;
|
| 909 |
tty.c_cc[VTIME] = 0;
|
| 910 |
} |
| 911 |
/* if graphical mode, we allow Ctrl-C handling */
|
| 912 |
if (!stdio_allow_signal)
|
| 913 |
tty.c_lflag &= ~ISIG; |
| 914 |
|
| 915 |
tcsetattr (0, TCSANOW, &tty);
|
| 916 |
} |
| 917 |
|
| 918 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
| 919 |
{
|
| 920 |
term_exit(); |
| 921 |
fd_chr_close(chr); |
| 922 |
} |
| 923 |
|
| 924 |
static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
|
| 925 |
{
|
| 926 |
CharDriverState *chr; |
| 927 |
|
| 928 |
if (is_daemonized()) {
|
| 929 |
error_report("cannot use stdio with -daemonize");
|
| 930 |
return NULL; |
| 931 |
} |
| 932 |
old_fd0_flags = fcntl(0, F_GETFL);
|
| 933 |
tcgetattr (0, &oldtty);
|
| 934 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
| 935 |
atexit(term_exit); |
| 936 |
|
| 937 |
chr = qemu_chr_open_fd(0, 1); |
| 938 |
chr->chr_close = qemu_chr_close_stdio; |
| 939 |
chr->chr_set_echo = qemu_chr_set_echo_stdio; |
| 940 |
stdio_allow_signal = display_type != DT_NOGRAPHIC; |
| 941 |
if (opts->has_signal) {
|
| 942 |
stdio_allow_signal = opts->signal; |
| 943 |
} |
| 944 |
qemu_chr_fe_set_echo(chr, false);
|
| 945 |
|
| 946 |
return chr;
|
| 947 |
} |
| 948 |
|
| 949 |
#ifdef __sun__
|
| 950 |
/* Once Solaris has openpty(), this is going to be removed. */
|
| 951 |
static int openpty(int *amaster, int *aslave, char *name, |
| 952 |
struct termios *termp, struct winsize *winp) |
| 953 |
{
|
| 954 |
const char *slave; |
| 955 |
int mfd = -1, sfd = -1; |
| 956 |
|
| 957 |
*amaster = *aslave = -1;
|
| 958 |
|
| 959 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
| 960 |
if (mfd < 0) |
| 961 |
goto err;
|
| 962 |
|
| 963 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
| 964 |
goto err;
|
| 965 |
|
| 966 |
if ((slave = ptsname(mfd)) == NULL) |
| 967 |
goto err;
|
| 968 |
|
| 969 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
| 970 |
goto err;
|
| 971 |
|
| 972 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
| 973 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
| 974 |
goto err;
|
| 975 |
|
| 976 |
if (amaster)
|
| 977 |
*amaster = mfd; |
| 978 |
if (aslave)
|
| 979 |
*aslave = sfd; |
| 980 |
if (winp)
|
| 981 |
ioctl(sfd, TIOCSWINSZ, winp); |
| 982 |
|
| 983 |
return 0; |
| 984 |
|
| 985 |
err:
|
| 986 |
if (sfd != -1) |
| 987 |
close(sfd); |
| 988 |
close(mfd); |
| 989 |
return -1; |
| 990 |
} |
| 991 |
|
| 992 |
static void cfmakeraw (struct termios *termios_p) |
| 993 |
{
|
| 994 |
termios_p->c_iflag &= |
| 995 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
| 996 |
termios_p->c_oflag &= ~OPOST; |
| 997 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
| 998 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
| 999 |
termios_p->c_cflag |= CS8; |
| 1000 |
|
| 1001 |
termios_p->c_cc[VMIN] = 0;
|
| 1002 |
termios_p->c_cc[VTIME] = 0;
|
| 1003 |
} |
| 1004 |
#endif
|
| 1005 |
|
| 1006 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
| 1007 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ |
| 1008 |
|| defined(__GLIBC__) |
| 1009 |
|
| 1010 |
#define HAVE_CHARDEV_TTY 1 |
| 1011 |
|
| 1012 |
typedef struct { |
| 1013 |
GIOChannel *fd; |
| 1014 |
guint fd_tag; |
| 1015 |
int connected;
|
| 1016 |
int polling;
|
| 1017 |
int read_bytes;
|
| 1018 |
guint timer_tag; |
| 1019 |
} PtyCharDriver; |
| 1020 |
|
| 1021 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
| 1022 |
static void pty_chr_state(CharDriverState *chr, int connected); |
| 1023 |
|
| 1024 |
static gboolean pty_chr_timer(gpointer opaque)
|
| 1025 |
{
|
| 1026 |
struct CharDriverState *chr = opaque;
|
| 1027 |
PtyCharDriver *s = chr->opaque; |
| 1028 |
|
| 1029 |
if (s->connected) {
|
| 1030 |
goto out;
|
| 1031 |
} |
| 1032 |
if (s->polling) {
|
| 1033 |
/* If we arrive here without polling being cleared due
|
| 1034 |
* read returning -EIO, then we are (re-)connected */
|
| 1035 |
pty_chr_state(chr, 1);
|
| 1036 |
goto out;
|
| 1037 |
} |
| 1038 |
|
| 1039 |
/* Next poll ... */
|
| 1040 |
pty_chr_update_read_handler(chr); |
| 1041 |
|
| 1042 |
out:
|
| 1043 |
return FALSE;
|
| 1044 |
} |
| 1045 |
|
| 1046 |
static void pty_chr_rearm_timer(CharDriverState *chr, int ms) |
| 1047 |
{
|
| 1048 |
PtyCharDriver *s = chr->opaque; |
| 1049 |
|
| 1050 |
if (s->timer_tag) {
|
| 1051 |
g_source_remove(s->timer_tag); |
| 1052 |
s->timer_tag = 0;
|
| 1053 |
} |
| 1054 |
|
| 1055 |
if (ms == 1000) { |
| 1056 |
s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
|
| 1057 |
} else {
|
| 1058 |
s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr); |
| 1059 |
} |
| 1060 |
} |
| 1061 |
|
| 1062 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 1063 |
{
|
| 1064 |
PtyCharDriver *s = chr->opaque; |
| 1065 |
|
| 1066 |
if (!s->connected) {
|
| 1067 |
/* guest sends data, check for (re-)connect */
|
| 1068 |
pty_chr_update_read_handler(chr); |
| 1069 |
return 0; |
| 1070 |
} |
| 1071 |
return io_channel_send(s->fd, buf, len);
|
| 1072 |
} |
| 1073 |
|
| 1074 |
static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond)
|
| 1075 |
{
|
| 1076 |
PtyCharDriver *s = chr->opaque; |
| 1077 |
return g_io_create_watch(s->fd, cond);
|
| 1078 |
} |
| 1079 |
|
| 1080 |
static int pty_chr_read_poll(void *opaque) |
| 1081 |
{
|
| 1082 |
CharDriverState *chr = opaque; |
| 1083 |
PtyCharDriver *s = chr->opaque; |
| 1084 |
|
| 1085 |
s->read_bytes = qemu_chr_be_can_write(chr); |
| 1086 |
return s->read_bytes;
|
| 1087 |
} |
| 1088 |
|
| 1089 |
static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
| 1090 |
{
|
| 1091 |
CharDriverState *chr = opaque; |
| 1092 |
PtyCharDriver *s = chr->opaque; |
| 1093 |
gsize size, len; |
| 1094 |
uint8_t buf[READ_BUF_LEN]; |
| 1095 |
GIOStatus status; |
| 1096 |
|
| 1097 |
len = sizeof(buf);
|
| 1098 |
if (len > s->read_bytes)
|
| 1099 |
len = s->read_bytes; |
| 1100 |
if (len == 0) |
| 1101 |
return FALSE;
|
| 1102 |
status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL);
|
| 1103 |
if (status != G_IO_STATUS_NORMAL) {
|
| 1104 |
pty_chr_state(chr, 0);
|
| 1105 |
return FALSE;
|
| 1106 |
} else {
|
| 1107 |
pty_chr_state(chr, 1);
|
| 1108 |
qemu_chr_be_write(chr, buf, size); |
| 1109 |
} |
| 1110 |
return TRUE;
|
| 1111 |
} |
| 1112 |
|
| 1113 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
| 1114 |
{
|
| 1115 |
PtyCharDriver *s = chr->opaque; |
| 1116 |
|
| 1117 |
if (s->fd_tag) {
|
| 1118 |
g_source_remove(s->fd_tag); |
| 1119 |
} |
| 1120 |
|
| 1121 |
s->fd_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, pty_chr_read, chr); |
| 1122 |
s->polling = 1;
|
| 1123 |
/*
|
| 1124 |
* Short timeout here: just need wait long enougth that qemu makes
|
| 1125 |
* it through the poll loop once. When reconnected we want a
|
| 1126 |
* short timeout so we notice it almost instantly. Otherwise
|
| 1127 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
| 1128 |
* timeout to the normal (much longer) poll interval before the
|
| 1129 |
* timer triggers.
|
| 1130 |
*/
|
| 1131 |
pty_chr_rearm_timer(chr, 10);
|
| 1132 |
} |
| 1133 |
|
| 1134 |
static void pty_chr_state(CharDriverState *chr, int connected) |
| 1135 |
{
|
| 1136 |
PtyCharDriver *s = chr->opaque; |
| 1137 |
|
| 1138 |
if (!connected) {
|
| 1139 |
g_source_remove(s->fd_tag); |
| 1140 |
s->fd_tag = 0;
|
| 1141 |
s->connected = 0;
|
| 1142 |
s->polling = 0;
|
| 1143 |
/* (re-)connect poll interval for idle guests: once per second.
|
| 1144 |
* We check more frequently in case the guests sends data to
|
| 1145 |
* the virtual device linked to our pty. */
|
| 1146 |
pty_chr_rearm_timer(chr, 1000);
|
| 1147 |
} else {
|
| 1148 |
if (!s->connected)
|
| 1149 |
qemu_chr_be_generic_open(chr); |
| 1150 |
s->connected = 1;
|
| 1151 |
} |
| 1152 |
} |
| 1153 |
|
| 1154 |
|
| 1155 |
static void pty_chr_close(struct CharDriverState *chr) |
| 1156 |
{
|
| 1157 |
PtyCharDriver *s = chr->opaque; |
| 1158 |
int fd;
|
| 1159 |
|
| 1160 |
if (s->fd_tag) {
|
| 1161 |
g_source_remove(s->fd_tag); |
| 1162 |
} |
| 1163 |
fd = g_io_channel_unix_get_fd(s->fd); |
| 1164 |
g_io_channel_unref(s->fd); |
| 1165 |
close(fd); |
| 1166 |
if (s->timer_tag) {
|
| 1167 |
g_source_remove(s->timer_tag); |
| 1168 |
} |
| 1169 |
g_free(s); |
| 1170 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 1171 |
} |
| 1172 |
|
| 1173 |
static CharDriverState *qemu_chr_open_pty(const char *id, |
| 1174 |
ChardevReturn *ret) |
| 1175 |
{
|
| 1176 |
CharDriverState *chr; |
| 1177 |
PtyCharDriver *s; |
| 1178 |
struct termios tty;
|
| 1179 |
int master_fd, slave_fd;
|
| 1180 |
#if defined(__OpenBSD__) || defined(__DragonFly__)
|
| 1181 |
char pty_name[PATH_MAX];
|
| 1182 |
#define q_ptsname(x) pty_name
|
| 1183 |
#else
|
| 1184 |
char *pty_name = NULL; |
| 1185 |
#define q_ptsname(x) ptsname(x)
|
| 1186 |
#endif
|
| 1187 |
|
| 1188 |
if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
| 1189 |
return NULL; |
| 1190 |
} |
| 1191 |
|
| 1192 |
/* Set raw attributes on the pty. */
|
| 1193 |
tcgetattr(slave_fd, &tty); |
| 1194 |
cfmakeraw(&tty); |
| 1195 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
| 1196 |
close(slave_fd); |
| 1197 |
|
| 1198 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 1199 |
|
| 1200 |
chr->filename = g_strdup_printf("pty:%s", q_ptsname(master_fd));
|
| 1201 |
ret->pty = g_strdup(q_ptsname(master_fd)); |
| 1202 |
ret->has_pty = true;
|
| 1203 |
|
| 1204 |
fprintf(stderr, "char device redirected to %s (label %s)\n",
|
| 1205 |
q_ptsname(master_fd), id); |
| 1206 |
|
| 1207 |
s = g_malloc0(sizeof(PtyCharDriver));
|
| 1208 |
chr->opaque = s; |
| 1209 |
chr->chr_write = pty_chr_write; |
| 1210 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
| 1211 |
chr->chr_close = pty_chr_close; |
| 1212 |
chr->chr_add_watch = pty_chr_add_watch; |
| 1213 |
|
| 1214 |
s->fd = io_channel_from_fd(master_fd); |
| 1215 |
s->timer_tag = 0;
|
| 1216 |
|
| 1217 |
return chr;
|
| 1218 |
} |
| 1219 |
|
| 1220 |
static void tty_serial_init(int fd, int speed, |
| 1221 |
int parity, int data_bits, int stop_bits) |
| 1222 |
{
|
| 1223 |
struct termios tty;
|
| 1224 |
speed_t spd; |
| 1225 |
|
| 1226 |
#if 0
|
| 1227 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
| 1228 |
speed, parity, data_bits, stop_bits);
|
| 1229 |
#endif
|
| 1230 |
tcgetattr (fd, &tty); |
| 1231 |
|
| 1232 |
#define check_speed(val) if (speed <= val) { spd = B##val; break; } |
| 1233 |
speed = speed * 10 / 11; |
| 1234 |
do {
|
| 1235 |
check_speed(50);
|
| 1236 |
check_speed(75);
|
| 1237 |
check_speed(110);
|
| 1238 |
check_speed(134);
|
| 1239 |
check_speed(150);
|
| 1240 |
check_speed(200);
|
| 1241 |
check_speed(300);
|
| 1242 |
check_speed(600);
|
| 1243 |
check_speed(1200);
|
| 1244 |
check_speed(1800);
|
| 1245 |
check_speed(2400);
|
| 1246 |
check_speed(4800);
|
| 1247 |
check_speed(9600);
|
| 1248 |
check_speed(19200);
|
| 1249 |
check_speed(38400);
|
| 1250 |
/* Non-Posix values follow. They may be unsupported on some systems. */
|
| 1251 |
check_speed(57600);
|
| 1252 |
check_speed(115200);
|
| 1253 |
#ifdef B230400
|
| 1254 |
check_speed(230400);
|
| 1255 |
#endif
|
| 1256 |
#ifdef B460800
|
| 1257 |
check_speed(460800);
|
| 1258 |
#endif
|
| 1259 |
#ifdef B500000
|
| 1260 |
check_speed(500000);
|
| 1261 |
#endif
|
| 1262 |
#ifdef B576000
|
| 1263 |
check_speed(576000);
|
| 1264 |
#endif
|
| 1265 |
#ifdef B921600
|
| 1266 |
check_speed(921600);
|
| 1267 |
#endif
|
| 1268 |
#ifdef B1000000
|
| 1269 |
check_speed(1000000);
|
| 1270 |
#endif
|
| 1271 |
#ifdef B1152000
|
| 1272 |
check_speed(1152000);
|
| 1273 |
#endif
|
| 1274 |
#ifdef B1500000
|
| 1275 |
check_speed(1500000);
|
| 1276 |
#endif
|
| 1277 |
#ifdef B2000000
|
| 1278 |
check_speed(2000000);
|
| 1279 |
#endif
|
| 1280 |
#ifdef B2500000
|
| 1281 |
check_speed(2500000);
|
| 1282 |
#endif
|
| 1283 |
#ifdef B3000000
|
| 1284 |
check_speed(3000000);
|
| 1285 |
#endif
|
| 1286 |
#ifdef B3500000
|
| 1287 |
check_speed(3500000);
|
| 1288 |
#endif
|
| 1289 |
#ifdef B4000000
|
| 1290 |
check_speed(4000000);
|
| 1291 |
#endif
|
| 1292 |
spd = B115200; |
| 1293 |
} while (0); |
| 1294 |
|
| 1295 |
cfsetispeed(&tty, spd); |
| 1296 |
cfsetospeed(&tty, spd); |
| 1297 |
|
| 1298 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 1299 |
|INLCR|IGNCR|ICRNL|IXON); |
| 1300 |
tty.c_oflag |= OPOST; |
| 1301 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
| 1302 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
| 1303 |
switch(data_bits) {
|
| 1304 |
default:
|
| 1305 |
case 8: |
| 1306 |
tty.c_cflag |= CS8; |
| 1307 |
break;
|
| 1308 |
case 7: |
| 1309 |
tty.c_cflag |= CS7; |
| 1310 |
break;
|
| 1311 |
case 6: |
| 1312 |
tty.c_cflag |= CS6; |
| 1313 |
break;
|
| 1314 |
case 5: |
| 1315 |
tty.c_cflag |= CS5; |
| 1316 |
break;
|
| 1317 |
} |
| 1318 |
switch(parity) {
|
| 1319 |
default:
|
| 1320 |
case 'N': |
| 1321 |
break;
|
| 1322 |
case 'E': |
| 1323 |
tty.c_cflag |= PARENB; |
| 1324 |
break;
|
| 1325 |
case 'O': |
| 1326 |
tty.c_cflag |= PARENB | PARODD; |
| 1327 |
break;
|
| 1328 |
} |
| 1329 |
if (stop_bits == 2) |
| 1330 |
tty.c_cflag |= CSTOPB; |
| 1331 |
|
| 1332 |
tcsetattr (fd, TCSANOW, &tty); |
| 1333 |
} |
| 1334 |
|
| 1335 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1336 |
{
|
| 1337 |
FDCharDriver *s = chr->opaque; |
| 1338 |
|
| 1339 |
switch(cmd) {
|
| 1340 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
| 1341 |
{
|
| 1342 |
QEMUSerialSetParams *ssp = arg; |
| 1343 |
tty_serial_init(g_io_channel_unix_get_fd(s->fd_in), |
| 1344 |
ssp->speed, ssp->parity, |
| 1345 |
ssp->data_bits, ssp->stop_bits); |
| 1346 |
} |
| 1347 |
break;
|
| 1348 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
| 1349 |
{
|
| 1350 |
int enable = *(int *)arg; |
| 1351 |
if (enable) {
|
| 1352 |
tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1);
|
| 1353 |
} |
| 1354 |
} |
| 1355 |
break;
|
| 1356 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
| 1357 |
{
|
| 1358 |
int sarg = 0; |
| 1359 |
int *targ = (int *)arg; |
| 1360 |
ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg); |
| 1361 |
*targ = 0;
|
| 1362 |
if (sarg & TIOCM_CTS)
|
| 1363 |
*targ |= CHR_TIOCM_CTS; |
| 1364 |
if (sarg & TIOCM_CAR)
|
| 1365 |
*targ |= CHR_TIOCM_CAR; |
| 1366 |
if (sarg & TIOCM_DSR)
|
| 1367 |
*targ |= CHR_TIOCM_DSR; |
| 1368 |
if (sarg & TIOCM_RI)
|
| 1369 |
*targ |= CHR_TIOCM_RI; |
| 1370 |
if (sarg & TIOCM_DTR)
|
| 1371 |
*targ |= CHR_TIOCM_DTR; |
| 1372 |
if (sarg & TIOCM_RTS)
|
| 1373 |
*targ |= CHR_TIOCM_RTS; |
| 1374 |
} |
| 1375 |
break;
|
| 1376 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
| 1377 |
{
|
| 1378 |
int sarg = *(int *)arg; |
| 1379 |
int targ = 0; |
| 1380 |
ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ); |
| 1381 |
targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR |
| 1382 |
| CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); |
| 1383 |
if (sarg & CHR_TIOCM_CTS)
|
| 1384 |
targ |= TIOCM_CTS; |
| 1385 |
if (sarg & CHR_TIOCM_CAR)
|
| 1386 |
targ |= TIOCM_CAR; |
| 1387 |
if (sarg & CHR_TIOCM_DSR)
|
| 1388 |
targ |= TIOCM_DSR; |
| 1389 |
if (sarg & CHR_TIOCM_RI)
|
| 1390 |
targ |= TIOCM_RI; |
| 1391 |
if (sarg & CHR_TIOCM_DTR)
|
| 1392 |
targ |= TIOCM_DTR; |
| 1393 |
if (sarg & CHR_TIOCM_RTS)
|
| 1394 |
targ |= TIOCM_RTS; |
| 1395 |
ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ); |
| 1396 |
} |
| 1397 |
break;
|
| 1398 |
default:
|
| 1399 |
return -ENOTSUP;
|
| 1400 |
} |
| 1401 |
return 0; |
| 1402 |
} |
| 1403 |
|
| 1404 |
static void qemu_chr_close_tty(CharDriverState *chr) |
| 1405 |
{
|
| 1406 |
FDCharDriver *s = chr->opaque; |
| 1407 |
int fd = -1; |
| 1408 |
|
| 1409 |
if (s) {
|
| 1410 |
fd = g_io_channel_unix_get_fd(s->fd_in); |
| 1411 |
} |
| 1412 |
|
| 1413 |
fd_chr_close(chr); |
| 1414 |
|
| 1415 |
if (fd >= 0) { |
| 1416 |
close(fd); |
| 1417 |
} |
| 1418 |
} |
| 1419 |
|
| 1420 |
static CharDriverState *qemu_chr_open_tty_fd(int fd) |
| 1421 |
{
|
| 1422 |
CharDriverState *chr; |
| 1423 |
|
| 1424 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
| 1425 |
chr = qemu_chr_open_fd(fd, fd); |
| 1426 |
chr->chr_ioctl = tty_serial_ioctl; |
| 1427 |
chr->chr_close = qemu_chr_close_tty; |
| 1428 |
return chr;
|
| 1429 |
} |
| 1430 |
#endif /* __linux__ || __sun__ */ |
| 1431 |
|
| 1432 |
#if defined(__linux__)
|
| 1433 |
|
| 1434 |
#define HAVE_CHARDEV_PARPORT 1 |
| 1435 |
|
| 1436 |
typedef struct { |
| 1437 |
int fd;
|
| 1438 |
int mode;
|
| 1439 |
} ParallelCharDriver; |
| 1440 |
|
| 1441 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
| 1442 |
{
|
| 1443 |
if (s->mode != mode) {
|
| 1444 |
int m = mode;
|
| 1445 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
| 1446 |
return 0; |
| 1447 |
s->mode = mode; |
| 1448 |
} |
| 1449 |
return 1; |
| 1450 |
} |
| 1451 |
|
| 1452 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1453 |
{
|
| 1454 |
ParallelCharDriver *drv = chr->opaque; |
| 1455 |
int fd = drv->fd;
|
| 1456 |
uint8_t b; |
| 1457 |
|
| 1458 |
switch(cmd) {
|
| 1459 |
case CHR_IOCTL_PP_READ_DATA:
|
| 1460 |
if (ioctl(fd, PPRDATA, &b) < 0) |
| 1461 |
return -ENOTSUP;
|
| 1462 |
*(uint8_t *)arg = b; |
| 1463 |
break;
|
| 1464 |
case CHR_IOCTL_PP_WRITE_DATA:
|
| 1465 |
b = *(uint8_t *)arg; |
| 1466 |
if (ioctl(fd, PPWDATA, &b) < 0) |
| 1467 |
return -ENOTSUP;
|
| 1468 |
break;
|
| 1469 |
case CHR_IOCTL_PP_READ_CONTROL:
|
| 1470 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
| 1471 |
return -ENOTSUP;
|
| 1472 |
/* Linux gives only the lowest bits, and no way to know data
|
| 1473 |
direction! For better compatibility set the fixed upper
|
| 1474 |
bits. */
|
| 1475 |
*(uint8_t *)arg = b | 0xc0;
|
| 1476 |
break;
|
| 1477 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
| 1478 |
b = *(uint8_t *)arg; |
| 1479 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
| 1480 |
return -ENOTSUP;
|
| 1481 |
break;
|
| 1482 |
case CHR_IOCTL_PP_READ_STATUS:
|
| 1483 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
| 1484 |
return -ENOTSUP;
|
| 1485 |
*(uint8_t *)arg = b; |
| 1486 |
break;
|
| 1487 |
case CHR_IOCTL_PP_DATA_DIR:
|
| 1488 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
| 1489 |
return -ENOTSUP;
|
| 1490 |
break;
|
| 1491 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
| 1492 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
| 1493 |
struct ParallelIOArg *parg = arg;
|
| 1494 |
int n = read(fd, parg->buffer, parg->count);
|
| 1495 |
if (n != parg->count) {
|
| 1496 |
return -EIO;
|
| 1497 |
} |
| 1498 |
} |
| 1499 |
break;
|
| 1500 |
case CHR_IOCTL_PP_EPP_READ:
|
| 1501 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
| 1502 |
struct ParallelIOArg *parg = arg;
|
| 1503 |
int n = read(fd, parg->buffer, parg->count);
|
| 1504 |
if (n != parg->count) {
|
| 1505 |
return -EIO;
|
| 1506 |
} |
| 1507 |
} |
| 1508 |
break;
|
| 1509 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
| 1510 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
| 1511 |
struct ParallelIOArg *parg = arg;
|
| 1512 |
int n = write(fd, parg->buffer, parg->count);
|
| 1513 |
if (n != parg->count) {
|
| 1514 |
return -EIO;
|
| 1515 |
} |
| 1516 |
} |
| 1517 |
break;
|
| 1518 |
case CHR_IOCTL_PP_EPP_WRITE:
|
| 1519 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
| 1520 |
struct ParallelIOArg *parg = arg;
|
| 1521 |
int n = write(fd, parg->buffer, parg->count);
|
| 1522 |
if (n != parg->count) {
|
| 1523 |
return -EIO;
|
| 1524 |
} |
| 1525 |
} |
| 1526 |
break;
|
| 1527 |
default:
|
| 1528 |
return -ENOTSUP;
|
| 1529 |
} |
| 1530 |
return 0; |
| 1531 |
} |
| 1532 |
|
| 1533 |
static void pp_close(CharDriverState *chr) |
| 1534 |
{
|
| 1535 |
ParallelCharDriver *drv = chr->opaque; |
| 1536 |
int fd = drv->fd;
|
| 1537 |
|
| 1538 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
| 1539 |
ioctl(fd, PPRELEASE); |
| 1540 |
close(fd); |
| 1541 |
g_free(drv); |
| 1542 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 1543 |
} |
| 1544 |
|
| 1545 |
static CharDriverState *qemu_chr_open_pp_fd(int fd) |
| 1546 |
{
|
| 1547 |
CharDriverState *chr; |
| 1548 |
ParallelCharDriver *drv; |
| 1549 |
|
| 1550 |
if (ioctl(fd, PPCLAIM) < 0) { |
| 1551 |
close(fd); |
| 1552 |
return NULL; |
| 1553 |
} |
| 1554 |
|
| 1555 |
drv = g_malloc0(sizeof(ParallelCharDriver));
|
| 1556 |
drv->fd = fd; |
| 1557 |
drv->mode = IEEE1284_MODE_COMPAT; |
| 1558 |
|
| 1559 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 1560 |
chr->chr_write = null_chr_write; |
| 1561 |
chr->chr_ioctl = pp_ioctl; |
| 1562 |
chr->chr_close = pp_close; |
| 1563 |
chr->opaque = drv; |
| 1564 |
|
| 1565 |
qemu_chr_be_generic_open(chr); |
| 1566 |
|
| 1567 |
return chr;
|
| 1568 |
} |
| 1569 |
#endif /* __linux__ */ |
| 1570 |
|
| 1571 |
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
|
| 1572 |
|
| 1573 |
#define HAVE_CHARDEV_PARPORT 1 |
| 1574 |
|
| 1575 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1576 |
{
|
| 1577 |
int fd = (int)(intptr_t)chr->opaque; |
| 1578 |
uint8_t b; |
| 1579 |
|
| 1580 |
switch(cmd) {
|
| 1581 |
case CHR_IOCTL_PP_READ_DATA:
|
| 1582 |
if (ioctl(fd, PPIGDATA, &b) < 0) |
| 1583 |
return -ENOTSUP;
|
| 1584 |
*(uint8_t *)arg = b; |
| 1585 |
break;
|
| 1586 |
case CHR_IOCTL_PP_WRITE_DATA:
|
| 1587 |
b = *(uint8_t *)arg; |
| 1588 |
if (ioctl(fd, PPISDATA, &b) < 0) |
| 1589 |
return -ENOTSUP;
|
| 1590 |
break;
|
| 1591 |
case CHR_IOCTL_PP_READ_CONTROL:
|
| 1592 |
if (ioctl(fd, PPIGCTRL, &b) < 0) |
| 1593 |
return -ENOTSUP;
|
| 1594 |
*(uint8_t *)arg = b; |
| 1595 |
break;
|
| 1596 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
| 1597 |
b = *(uint8_t *)arg; |
| 1598 |
if (ioctl(fd, PPISCTRL, &b) < 0) |
| 1599 |
return -ENOTSUP;
|
| 1600 |
break;
|
| 1601 |
case CHR_IOCTL_PP_READ_STATUS:
|
| 1602 |
if (ioctl(fd, PPIGSTATUS, &b) < 0) |
| 1603 |
return -ENOTSUP;
|
| 1604 |
*(uint8_t *)arg = b; |
| 1605 |
break;
|
| 1606 |
default:
|
| 1607 |
return -ENOTSUP;
|
| 1608 |
} |
| 1609 |
return 0; |
| 1610 |
} |
| 1611 |
|
| 1612 |
static CharDriverState *qemu_chr_open_pp_fd(int fd) |
| 1613 |
{
|
| 1614 |
CharDriverState *chr; |
| 1615 |
|
| 1616 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 1617 |
chr->opaque = (void *)(intptr_t)fd;
|
| 1618 |
chr->chr_write = null_chr_write; |
| 1619 |
chr->chr_ioctl = pp_ioctl; |
| 1620 |
return chr;
|
| 1621 |
} |
| 1622 |
#endif
|
| 1623 |
|
| 1624 |
#else /* _WIN32 */ |
| 1625 |
|
| 1626 |
typedef struct { |
| 1627 |
int max_size;
|
| 1628 |
HANDLE hcom, hrecv, hsend; |
| 1629 |
OVERLAPPED orecv, osend; |
| 1630 |
BOOL fpipe; |
| 1631 |
DWORD len; |
| 1632 |
} WinCharState; |
| 1633 |
|
| 1634 |
typedef struct { |
| 1635 |
HANDLE hStdIn; |
| 1636 |
HANDLE hInputReadyEvent; |
| 1637 |
HANDLE hInputDoneEvent; |
| 1638 |
HANDLE hInputThread; |
| 1639 |
uint8_t win_stdio_buf; |
| 1640 |
} WinStdioCharState; |
| 1641 |
|
| 1642 |
#define NSENDBUF 2048 |
| 1643 |
#define NRECVBUF 2048 |
| 1644 |
#define MAXCONNECT 1 |
| 1645 |
#define NTIMEOUT 5000 |
| 1646 |
|
| 1647 |
static int win_chr_poll(void *opaque); |
| 1648 |
static int win_chr_pipe_poll(void *opaque); |
| 1649 |
|
| 1650 |
static void win_chr_close(CharDriverState *chr) |
| 1651 |
{
|
| 1652 |
WinCharState *s = chr->opaque; |
| 1653 |
|
| 1654 |
if (s->hsend) {
|
| 1655 |
CloseHandle(s->hsend); |
| 1656 |
s->hsend = NULL;
|
| 1657 |
} |
| 1658 |
if (s->hrecv) {
|
| 1659 |
CloseHandle(s->hrecv); |
| 1660 |
s->hrecv = NULL;
|
| 1661 |
} |
| 1662 |
if (s->hcom) {
|
| 1663 |
CloseHandle(s->hcom); |
| 1664 |
s->hcom = NULL;
|
| 1665 |
} |
| 1666 |
if (s->fpipe)
|
| 1667 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
| 1668 |
else
|
| 1669 |
qemu_del_polling_cb(win_chr_poll, chr); |
| 1670 |
|
| 1671 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 1672 |
} |
| 1673 |
|
| 1674 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
| 1675 |
{
|
| 1676 |
WinCharState *s = chr->opaque; |
| 1677 |
COMMCONFIG comcfg; |
| 1678 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
|
| 1679 |
COMSTAT comstat; |
| 1680 |
DWORD size; |
| 1681 |
DWORD err; |
| 1682 |
|
| 1683 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1684 |
if (!s->hsend) {
|
| 1685 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1686 |
goto fail;
|
| 1687 |
} |
| 1688 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1689 |
if (!s->hrecv) {
|
| 1690 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1691 |
goto fail;
|
| 1692 |
} |
| 1693 |
|
| 1694 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
| 1695 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
| 1696 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
| 1697 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
| 1698 |
s->hcom = NULL;
|
| 1699 |
goto fail;
|
| 1700 |
} |
| 1701 |
|
| 1702 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
| 1703 |
fprintf(stderr, "Failed SetupComm\n");
|
| 1704 |
goto fail;
|
| 1705 |
} |
| 1706 |
|
| 1707 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
| 1708 |
size = sizeof(COMMCONFIG);
|
| 1709 |
GetDefaultCommConfig(filename, &comcfg, &size); |
| 1710 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
| 1711 |
CommConfigDialog(filename, NULL, &comcfg);
|
| 1712 |
|
| 1713 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
| 1714 |
fprintf(stderr, "Failed SetCommState\n");
|
| 1715 |
goto fail;
|
| 1716 |
} |
| 1717 |
|
| 1718 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
| 1719 |
fprintf(stderr, "Failed SetCommMask\n");
|
| 1720 |
goto fail;
|
| 1721 |
} |
| 1722 |
|
| 1723 |
cto.ReadIntervalTimeout = MAXDWORD; |
| 1724 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
| 1725 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
| 1726 |
goto fail;
|
| 1727 |
} |
| 1728 |
|
| 1729 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
| 1730 |
fprintf(stderr, "Failed ClearCommError\n");
|
| 1731 |
goto fail;
|
| 1732 |
} |
| 1733 |
qemu_add_polling_cb(win_chr_poll, chr); |
| 1734 |
return 0; |
| 1735 |
|
| 1736 |
fail:
|
| 1737 |
win_chr_close(chr); |
| 1738 |
return -1; |
| 1739 |
} |
| 1740 |
|
| 1741 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
| 1742 |
{
|
| 1743 |
WinCharState *s = chr->opaque; |
| 1744 |
DWORD len, ret, size, err; |
| 1745 |
|
| 1746 |
len = len1; |
| 1747 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
| 1748 |
s->osend.hEvent = s->hsend; |
| 1749 |
while (len > 0) { |
| 1750 |
if (s->hsend)
|
| 1751 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
| 1752 |
else
|
| 1753 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
| 1754 |
if (!ret) {
|
| 1755 |
err = GetLastError(); |
| 1756 |
if (err == ERROR_IO_PENDING) {
|
| 1757 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
| 1758 |
if (ret) {
|
| 1759 |
buf += size; |
| 1760 |
len -= size; |
| 1761 |
} else {
|
| 1762 |
break;
|
| 1763 |
} |
| 1764 |
} else {
|
| 1765 |
break;
|
| 1766 |
} |
| 1767 |
} else {
|
| 1768 |
buf += size; |
| 1769 |
len -= size; |
| 1770 |
} |
| 1771 |
} |
| 1772 |
return len1 - len;
|
| 1773 |
} |
| 1774 |
|
| 1775 |
static int win_chr_read_poll(CharDriverState *chr) |
| 1776 |
{
|
| 1777 |
WinCharState *s = chr->opaque; |
| 1778 |
|
| 1779 |
s->max_size = qemu_chr_be_can_write(chr); |
| 1780 |
return s->max_size;
|
| 1781 |
} |
| 1782 |
|
| 1783 |
static void win_chr_readfile(CharDriverState *chr) |
| 1784 |
{
|
| 1785 |
WinCharState *s = chr->opaque; |
| 1786 |
int ret, err;
|
| 1787 |
uint8_t buf[READ_BUF_LEN]; |
| 1788 |
DWORD size; |
| 1789 |
|
| 1790 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
| 1791 |
s->orecv.hEvent = s->hrecv; |
| 1792 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
| 1793 |
if (!ret) {
|
| 1794 |
err = GetLastError(); |
| 1795 |
if (err == ERROR_IO_PENDING) {
|
| 1796 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
| 1797 |
} |
| 1798 |
} |
| 1799 |
|
| 1800 |
if (size > 0) { |
| 1801 |
qemu_chr_be_write(chr, buf, size); |
| 1802 |
} |
| 1803 |
} |
| 1804 |
|
| 1805 |
static void win_chr_read(CharDriverState *chr) |
| 1806 |
{
|
| 1807 |
WinCharState *s = chr->opaque; |
| 1808 |
|
| 1809 |
if (s->len > s->max_size)
|
| 1810 |
s->len = s->max_size; |
| 1811 |
if (s->len == 0) |
| 1812 |
return;
|
| 1813 |
|
| 1814 |
win_chr_readfile(chr); |
| 1815 |
} |
| 1816 |
|
| 1817 |
static int win_chr_poll(void *opaque) |
| 1818 |
{
|
| 1819 |
CharDriverState *chr = opaque; |
| 1820 |
WinCharState *s = chr->opaque; |
| 1821 |
COMSTAT status; |
| 1822 |
DWORD comerr; |
| 1823 |
|
| 1824 |
ClearCommError(s->hcom, &comerr, &status); |
| 1825 |
if (status.cbInQue > 0) { |
| 1826 |
s->len = status.cbInQue; |
| 1827 |
win_chr_read_poll(chr); |
| 1828 |
win_chr_read(chr); |
| 1829 |
return 1; |
| 1830 |
} |
| 1831 |
return 0; |
| 1832 |
} |
| 1833 |
|
| 1834 |
static CharDriverState *qemu_chr_open_win_path(const char *filename) |
| 1835 |
{
|
| 1836 |
CharDriverState *chr; |
| 1837 |
WinCharState *s; |
| 1838 |
|
| 1839 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 1840 |
s = g_malloc0(sizeof(WinCharState));
|
| 1841 |
chr->opaque = s; |
| 1842 |
chr->chr_write = win_chr_write; |
| 1843 |
chr->chr_close = win_chr_close; |
| 1844 |
|
| 1845 |
if (win_chr_init(chr, filename) < 0) { |
| 1846 |
g_free(s); |
| 1847 |
g_free(chr); |
| 1848 |
return NULL; |
| 1849 |
} |
| 1850 |
qemu_chr_be_generic_open(chr); |
| 1851 |
return chr;
|
| 1852 |
} |
| 1853 |
|
| 1854 |
static int win_chr_pipe_poll(void *opaque) |
| 1855 |
{
|
| 1856 |
CharDriverState *chr = opaque; |
| 1857 |
WinCharState *s = chr->opaque; |
| 1858 |
DWORD size; |
| 1859 |
|
| 1860 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
| 1861 |
if (size > 0) { |
| 1862 |
s->len = size; |
| 1863 |
win_chr_read_poll(chr); |
| 1864 |
win_chr_read(chr); |
| 1865 |
return 1; |
| 1866 |
} |
| 1867 |
return 0; |
| 1868 |
} |
| 1869 |
|
| 1870 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
| 1871 |
{
|
| 1872 |
WinCharState *s = chr->opaque; |
| 1873 |
OVERLAPPED ov; |
| 1874 |
int ret;
|
| 1875 |
DWORD size; |
| 1876 |
char openname[256]; |
| 1877 |
|
| 1878 |
s->fpipe = TRUE; |
| 1879 |
|
| 1880 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1881 |
if (!s->hsend) {
|
| 1882 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1883 |
goto fail;
|
| 1884 |
} |
| 1885 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1886 |
if (!s->hrecv) {
|
| 1887 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1888 |
goto fail;
|
| 1889 |
} |
| 1890 |
|
| 1891 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
| 1892 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
| 1893 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
| 1894 |
PIPE_WAIT, |
| 1895 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
| 1896 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
| 1897 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
| 1898 |
s->hcom = NULL;
|
| 1899 |
goto fail;
|
| 1900 |
} |
| 1901 |
|
| 1902 |
ZeroMemory(&ov, sizeof(ov));
|
| 1903 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1904 |
ret = ConnectNamedPipe(s->hcom, &ov); |
| 1905 |
if (ret) {
|
| 1906 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
| 1907 |
goto fail;
|
| 1908 |
} |
| 1909 |
|
| 1910 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
| 1911 |
if (!ret) {
|
| 1912 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
| 1913 |
if (ov.hEvent) {
|
| 1914 |
CloseHandle(ov.hEvent); |
| 1915 |
ov.hEvent = NULL;
|
| 1916 |
} |
| 1917 |
goto fail;
|
| 1918 |
} |
| 1919 |
|
| 1920 |
if (ov.hEvent) {
|
| 1921 |
CloseHandle(ov.hEvent); |
| 1922 |
ov.hEvent = NULL;
|
| 1923 |
} |
| 1924 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
| 1925 |
return 0; |
| 1926 |
|
| 1927 |
fail:
|
| 1928 |
win_chr_close(chr); |
| 1929 |
return -1; |
| 1930 |
} |
| 1931 |
|
| 1932 |
|
| 1933 |
static CharDriverState *qemu_chr_open_pipe(ChardevHostdev *opts)
|
| 1934 |
{
|
| 1935 |
const char *filename = opts->device; |
| 1936 |
CharDriverState *chr; |
| 1937 |
WinCharState *s; |
| 1938 |
|
| 1939 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 1940 |
s = g_malloc0(sizeof(WinCharState));
|
| 1941 |
chr->opaque = s; |
| 1942 |
chr->chr_write = win_chr_write; |
| 1943 |
chr->chr_close = win_chr_close; |
| 1944 |
|
| 1945 |
if (win_chr_pipe_init(chr, filename) < 0) { |
| 1946 |
g_free(s); |
| 1947 |
g_free(chr); |
| 1948 |
return NULL; |
| 1949 |
} |
| 1950 |
qemu_chr_be_generic_open(chr); |
| 1951 |
return chr;
|
| 1952 |
} |
| 1953 |
|
| 1954 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
| 1955 |
{
|
| 1956 |
CharDriverState *chr; |
| 1957 |
WinCharState *s; |
| 1958 |
|
| 1959 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 1960 |
s = g_malloc0(sizeof(WinCharState));
|
| 1961 |
s->hcom = fd_out; |
| 1962 |
chr->opaque = s; |
| 1963 |
chr->chr_write = win_chr_write; |
| 1964 |
qemu_chr_be_generic_open(chr); |
| 1965 |
return chr;
|
| 1966 |
} |
| 1967 |
|
| 1968 |
static CharDriverState *qemu_chr_open_win_con(void) |
| 1969 |
{
|
| 1970 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
| 1971 |
} |
| 1972 |
|
| 1973 |
static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 1974 |
{
|
| 1975 |
HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE); |
| 1976 |
DWORD dwSize; |
| 1977 |
int len1;
|
| 1978 |
|
| 1979 |
len1 = len; |
| 1980 |
|
| 1981 |
while (len1 > 0) { |
| 1982 |
if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) { |
| 1983 |
break;
|
| 1984 |
} |
| 1985 |
buf += dwSize; |
| 1986 |
len1 -= dwSize; |
| 1987 |
} |
| 1988 |
|
| 1989 |
return len - len1;
|
| 1990 |
} |
| 1991 |
|
| 1992 |
static void win_stdio_wait_func(void *opaque) |
| 1993 |
{
|
| 1994 |
CharDriverState *chr = opaque; |
| 1995 |
WinStdioCharState *stdio = chr->opaque; |
| 1996 |
INPUT_RECORD buf[4];
|
| 1997 |
int ret;
|
| 1998 |
DWORD dwSize; |
| 1999 |
int i;
|
| 2000 |
|
| 2001 |
ret = ReadConsoleInput(stdio->hStdIn, buf, sizeof(buf) / sizeof(*buf), |
| 2002 |
&dwSize); |
| 2003 |
|
| 2004 |
if (!ret) {
|
| 2005 |
/* Avoid error storm */
|
| 2006 |
qemu_del_wait_object(stdio->hStdIn, NULL, NULL); |
| 2007 |
return;
|
| 2008 |
} |
| 2009 |
|
| 2010 |
for (i = 0; i < dwSize; i++) { |
| 2011 |
KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent; |
| 2012 |
|
| 2013 |
if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
|
| 2014 |
int j;
|
| 2015 |
if (kev->uChar.AsciiChar != 0) { |
| 2016 |
for (j = 0; j < kev->wRepeatCount; j++) { |
| 2017 |
if (qemu_chr_be_can_write(chr)) {
|
| 2018 |
uint8_t c = kev->uChar.AsciiChar; |
| 2019 |
qemu_chr_be_write(chr, &c, 1);
|
| 2020 |
} |
| 2021 |
} |
| 2022 |
} |
| 2023 |
} |
| 2024 |
} |
| 2025 |
} |
| 2026 |
|
| 2027 |
static DWORD WINAPI win_stdio_thread(LPVOID param)
|
| 2028 |
{
|
| 2029 |
CharDriverState *chr = param; |
| 2030 |
WinStdioCharState *stdio = chr->opaque; |
| 2031 |
int ret;
|
| 2032 |
DWORD dwSize; |
| 2033 |
|
| 2034 |
while (1) { |
| 2035 |
|
| 2036 |
/* Wait for one byte */
|
| 2037 |
ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL); |
| 2038 |
|
| 2039 |
/* Exit in case of error, continue if nothing read */
|
| 2040 |
if (!ret) {
|
| 2041 |
break;
|
| 2042 |
} |
| 2043 |
if (!dwSize) {
|
| 2044 |
continue;
|
| 2045 |
} |
| 2046 |
|
| 2047 |
/* Some terminal emulator returns \r\n for Enter, just pass \n */
|
| 2048 |
if (stdio->win_stdio_buf == '\r') { |
| 2049 |
continue;
|
| 2050 |
} |
| 2051 |
|
| 2052 |
/* Signal the main thread and wait until the byte was eaten */
|
| 2053 |
if (!SetEvent(stdio->hInputReadyEvent)) {
|
| 2054 |
break;
|
| 2055 |
} |
| 2056 |
if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
|
| 2057 |
!= WAIT_OBJECT_0) {
|
| 2058 |
break;
|
| 2059 |
} |
| 2060 |
} |
| 2061 |
|
| 2062 |
qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL); |
| 2063 |
return 0; |
| 2064 |
} |
| 2065 |
|
| 2066 |
static void win_stdio_thread_wait_func(void *opaque) |
| 2067 |
{
|
| 2068 |
CharDriverState *chr = opaque; |
| 2069 |
WinStdioCharState *stdio = chr->opaque; |
| 2070 |
|
| 2071 |
if (qemu_chr_be_can_write(chr)) {
|
| 2072 |
qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
|
| 2073 |
} |
| 2074 |
|
| 2075 |
SetEvent(stdio->hInputDoneEvent); |
| 2076 |
} |
| 2077 |
|
| 2078 |
static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo) |
| 2079 |
{
|
| 2080 |
WinStdioCharState *stdio = chr->opaque; |
| 2081 |
DWORD dwMode = 0;
|
| 2082 |
|
| 2083 |
GetConsoleMode(stdio->hStdIn, &dwMode); |
| 2084 |
|
| 2085 |
if (echo) {
|
| 2086 |
SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT); |
| 2087 |
} else {
|
| 2088 |
SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT); |
| 2089 |
} |
| 2090 |
} |
| 2091 |
|
| 2092 |
static void win_stdio_close(CharDriverState *chr) |
| 2093 |
{
|
| 2094 |
WinStdioCharState *stdio = chr->opaque; |
| 2095 |
|
| 2096 |
if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
|
| 2097 |
CloseHandle(stdio->hInputReadyEvent); |
| 2098 |
} |
| 2099 |
if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
|
| 2100 |
CloseHandle(stdio->hInputDoneEvent); |
| 2101 |
} |
| 2102 |
if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
|
| 2103 |
TerminateThread(stdio->hInputThread, 0);
|
| 2104 |
} |
| 2105 |
|
| 2106 |
g_free(chr->opaque); |
| 2107 |
g_free(chr); |
| 2108 |
} |
| 2109 |
|
| 2110 |
static CharDriverState *qemu_chr_open_stdio(ChardevStdio *opts)
|
| 2111 |
{
|
| 2112 |
CharDriverState *chr; |
| 2113 |
WinStdioCharState *stdio; |
| 2114 |
DWORD dwMode; |
| 2115 |
int is_console = 0; |
| 2116 |
|
| 2117 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 2118 |
stdio = g_malloc0(sizeof(WinStdioCharState));
|
| 2119 |
|
| 2120 |
stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE); |
| 2121 |
if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
|
| 2122 |
fprintf(stderr, "cannot open stdio: invalid handle\n");
|
| 2123 |
exit(1);
|
| 2124 |
} |
| 2125 |
|
| 2126 |
is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
|
| 2127 |
|
| 2128 |
chr->opaque = stdio; |
| 2129 |
chr->chr_write = win_stdio_write; |
| 2130 |
chr->chr_close = win_stdio_close; |
| 2131 |
|
| 2132 |
if (is_console) {
|
| 2133 |
if (qemu_add_wait_object(stdio->hStdIn,
|
| 2134 |
win_stdio_wait_func, chr)) {
|
| 2135 |
fprintf(stderr, "qemu_add_wait_object: failed\n");
|
| 2136 |
} |
| 2137 |
} else {
|
| 2138 |
DWORD dwId; |
| 2139 |
|
| 2140 |
stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
| 2141 |
stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
| 2142 |
stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread, |
| 2143 |
chr, 0, &dwId);
|
| 2144 |
|
| 2145 |
if (stdio->hInputThread == INVALID_HANDLE_VALUE
|
| 2146 |
|| stdio->hInputReadyEvent == INVALID_HANDLE_VALUE |
| 2147 |
|| stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
|
| 2148 |
fprintf(stderr, "cannot create stdio thread or event\n");
|
| 2149 |
exit(1);
|
| 2150 |
} |
| 2151 |
if (qemu_add_wait_object(stdio->hInputReadyEvent,
|
| 2152 |
win_stdio_thread_wait_func, chr)) {
|
| 2153 |
fprintf(stderr, "qemu_add_wait_object: failed\n");
|
| 2154 |
} |
| 2155 |
} |
| 2156 |
|
| 2157 |
dwMode |= ENABLE_LINE_INPUT; |
| 2158 |
|
| 2159 |
if (is_console) {
|
| 2160 |
/* set the terminal in raw mode */
|
| 2161 |
/* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
|
| 2162 |
dwMode |= ENABLE_PROCESSED_INPUT; |
| 2163 |
} |
| 2164 |
|
| 2165 |
SetConsoleMode(stdio->hStdIn, dwMode); |
| 2166 |
|
| 2167 |
chr->chr_set_echo = qemu_chr_set_echo_win_stdio; |
| 2168 |
qemu_chr_fe_set_echo(chr, false);
|
| 2169 |
|
| 2170 |
return chr;
|
| 2171 |
} |
| 2172 |
#endif /* !_WIN32 */ |
| 2173 |
|
| 2174 |
|
| 2175 |
/***********************************************************/
|
| 2176 |
/* UDP Net console */
|
| 2177 |
|
| 2178 |
typedef struct { |
| 2179 |
int fd;
|
| 2180 |
GIOChannel *chan; |
| 2181 |
guint tag; |
| 2182 |
uint8_t buf[READ_BUF_LEN]; |
| 2183 |
int bufcnt;
|
| 2184 |
int bufptr;
|
| 2185 |
int max_size;
|
| 2186 |
} NetCharDriver; |
| 2187 |
|
| 2188 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2189 |
{
|
| 2190 |
NetCharDriver *s = chr->opaque; |
| 2191 |
gsize bytes_written; |
| 2192 |
GIOStatus status; |
| 2193 |
|
| 2194 |
status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL); |
| 2195 |
if (status == G_IO_STATUS_EOF) {
|
| 2196 |
return 0; |
| 2197 |
} else if (status != G_IO_STATUS_NORMAL) { |
| 2198 |
return -1; |
| 2199 |
} |
| 2200 |
|
| 2201 |
return bytes_written;
|
| 2202 |
} |
| 2203 |
|
| 2204 |
static int udp_chr_read_poll(void *opaque) |
| 2205 |
{
|
| 2206 |
CharDriverState *chr = opaque; |
| 2207 |
NetCharDriver *s = chr->opaque; |
| 2208 |
|
| 2209 |
s->max_size = qemu_chr_be_can_write(chr); |
| 2210 |
|
| 2211 |
/* If there were any stray characters in the queue process them
|
| 2212 |
* first
|
| 2213 |
*/
|
| 2214 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
| 2215 |
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
| 2216 |
s->bufptr++; |
| 2217 |
s->max_size = qemu_chr_be_can_write(chr); |
| 2218 |
} |
| 2219 |
return s->max_size;
|
| 2220 |
} |
| 2221 |
|
| 2222 |
static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
| 2223 |
{
|
| 2224 |
CharDriverState *chr = opaque; |
| 2225 |
NetCharDriver *s = chr->opaque; |
| 2226 |
gsize bytes_read = 0;
|
| 2227 |
GIOStatus status; |
| 2228 |
|
| 2229 |
if (s->max_size == 0) |
| 2230 |
return FALSE;
|
| 2231 |
status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf),
|
| 2232 |
&bytes_read, NULL);
|
| 2233 |
s->bufcnt = bytes_read; |
| 2234 |
s->bufptr = s->bufcnt; |
| 2235 |
if (status != G_IO_STATUS_NORMAL) {
|
| 2236 |
return FALSE;
|
| 2237 |
} |
| 2238 |
|
| 2239 |
s->bufptr = 0;
|
| 2240 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
| 2241 |
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
| 2242 |
s->bufptr++; |
| 2243 |
s->max_size = qemu_chr_be_can_write(chr); |
| 2244 |
} |
| 2245 |
|
| 2246 |
return TRUE;
|
| 2247 |
} |
| 2248 |
|
| 2249 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
| 2250 |
{
|
| 2251 |
NetCharDriver *s = chr->opaque; |
| 2252 |
|
| 2253 |
if (s->tag) {
|
| 2254 |
g_source_remove(s->tag); |
| 2255 |
s->tag = 0;
|
| 2256 |
} |
| 2257 |
|
| 2258 |
if (s->chan) {
|
| 2259 |
s->tag = io_add_watch_poll(s->chan, udp_chr_read_poll, udp_chr_read, chr); |
| 2260 |
} |
| 2261 |
} |
| 2262 |
|
| 2263 |
static void udp_chr_close(CharDriverState *chr) |
| 2264 |
{
|
| 2265 |
NetCharDriver *s = chr->opaque; |
| 2266 |
if (s->tag) {
|
| 2267 |
g_source_remove(s->tag); |
| 2268 |
} |
| 2269 |
if (s->chan) {
|
| 2270 |
g_io_channel_unref(s->chan); |
| 2271 |
closesocket(s->fd); |
| 2272 |
} |
| 2273 |
g_free(s); |
| 2274 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 2275 |
} |
| 2276 |
|
| 2277 |
static CharDriverState *qemu_chr_open_udp_fd(int fd) |
| 2278 |
{
|
| 2279 |
CharDriverState *chr = NULL;
|
| 2280 |
NetCharDriver *s = NULL;
|
| 2281 |
|
| 2282 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 2283 |
s = g_malloc0(sizeof(NetCharDriver));
|
| 2284 |
|
| 2285 |
s->fd = fd; |
| 2286 |
s->chan = io_channel_from_socket(s->fd); |
| 2287 |
s->bufcnt = 0;
|
| 2288 |
s->bufptr = 0;
|
| 2289 |
chr->opaque = s; |
| 2290 |
chr->chr_write = udp_chr_write; |
| 2291 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
| 2292 |
chr->chr_close = udp_chr_close; |
| 2293 |
return chr;
|
| 2294 |
} |
| 2295 |
|
| 2296 |
static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
|
| 2297 |
{
|
| 2298 |
Error *local_err = NULL;
|
| 2299 |
int fd = -1; |
| 2300 |
|
| 2301 |
fd = inet_dgram_opts(opts, &local_err); |
| 2302 |
if (fd < 0) { |
| 2303 |
return NULL; |
| 2304 |
} |
| 2305 |
return qemu_chr_open_udp_fd(fd);
|
| 2306 |
} |
| 2307 |
|
| 2308 |
/***********************************************************/
|
| 2309 |
/* TCP Net console */
|
| 2310 |
|
| 2311 |
typedef struct { |
| 2312 |
|
| 2313 |
GIOChannel *chan, *listen_chan; |
| 2314 |
guint tag, listen_tag; |
| 2315 |
int fd, listen_fd;
|
| 2316 |
int connected;
|
| 2317 |
int max_size;
|
| 2318 |
int do_telnetopt;
|
| 2319 |
int do_nodelay;
|
| 2320 |
int is_unix;
|
| 2321 |
int msgfd;
|
| 2322 |
} TCPCharDriver; |
| 2323 |
|
| 2324 |
static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque); |
| 2325 |
|
| 2326 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2327 |
{
|
| 2328 |
TCPCharDriver *s = chr->opaque; |
| 2329 |
if (s->connected) {
|
| 2330 |
return io_channel_send(s->chan, buf, len);
|
| 2331 |
} else {
|
| 2332 |
/* XXX: indicate an error ? */
|
| 2333 |
return len;
|
| 2334 |
} |
| 2335 |
} |
| 2336 |
|
| 2337 |
static int tcp_chr_read_poll(void *opaque) |
| 2338 |
{
|
| 2339 |
CharDriverState *chr = opaque; |
| 2340 |
TCPCharDriver *s = chr->opaque; |
| 2341 |
if (!s->connected)
|
| 2342 |
return 0; |
| 2343 |
s->max_size = qemu_chr_be_can_write(chr); |
| 2344 |
return s->max_size;
|
| 2345 |
} |
| 2346 |
|
| 2347 |
#define IAC 255 |
| 2348 |
#define IAC_BREAK 243 |
| 2349 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
| 2350 |
TCPCharDriver *s, |
| 2351 |
uint8_t *buf, int *size)
|
| 2352 |
{
|
| 2353 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
| 2354 |
* char mode with no echo. All IAC options will be removed from
|
| 2355 |
* the buf and the do_telnetopt variable will be used to track the
|
| 2356 |
* state of the width of the IAC information.
|
| 2357 |
*
|
| 2358 |
* IAC commands come in sets of 3 bytes with the exception of the
|
| 2359 |
* "IAC BREAK" command and the double IAC.
|
| 2360 |
*/
|
| 2361 |
|
| 2362 |
int i;
|
| 2363 |
int j = 0; |
| 2364 |
|
| 2365 |
for (i = 0; i < *size; i++) { |
| 2366 |
if (s->do_telnetopt > 1) { |
| 2367 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
| 2368 |
/* Double IAC means send an IAC */
|
| 2369 |
if (j != i)
|
| 2370 |
buf[j] = buf[i]; |
| 2371 |
j++; |
| 2372 |
s->do_telnetopt = 1;
|
| 2373 |
} else {
|
| 2374 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
| 2375 |
/* Handle IAC break commands by sending a serial break */
|
| 2376 |
qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
| 2377 |
s->do_telnetopt++; |
| 2378 |
} |
| 2379 |
s->do_telnetopt++; |
| 2380 |
} |
| 2381 |
if (s->do_telnetopt >= 4) { |
| 2382 |
s->do_telnetopt = 1;
|
| 2383 |
} |
| 2384 |
} else {
|
| 2385 |
if ((unsigned char)buf[i] == IAC) { |
| 2386 |
s->do_telnetopt = 2;
|
| 2387 |
} else {
|
| 2388 |
if (j != i)
|
| 2389 |
buf[j] = buf[i]; |
| 2390 |
j++; |
| 2391 |
} |
| 2392 |
} |
| 2393 |
} |
| 2394 |
*size = j; |
| 2395 |
} |
| 2396 |
|
| 2397 |
static int tcp_get_msgfd(CharDriverState *chr) |
| 2398 |
{
|
| 2399 |
TCPCharDriver *s = chr->opaque; |
| 2400 |
int fd = s->msgfd;
|
| 2401 |
s->msgfd = -1;
|
| 2402 |
return fd;
|
| 2403 |
} |
| 2404 |
|
| 2405 |
#ifndef _WIN32
|
| 2406 |
static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg) |
| 2407 |
{
|
| 2408 |
TCPCharDriver *s = chr->opaque; |
| 2409 |
struct cmsghdr *cmsg;
|
| 2410 |
|
| 2411 |
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
|
| 2412 |
int fd;
|
| 2413 |
|
| 2414 |
if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) || |
| 2415 |
cmsg->cmsg_level != SOL_SOCKET || |
| 2416 |
cmsg->cmsg_type != SCM_RIGHTS) |
| 2417 |
continue;
|
| 2418 |
|
| 2419 |
fd = *((int *)CMSG_DATA(cmsg));
|
| 2420 |
if (fd < 0) |
| 2421 |
continue;
|
| 2422 |
|
| 2423 |
/* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
|
| 2424 |
qemu_set_block(fd); |
| 2425 |
|
| 2426 |
#ifndef MSG_CMSG_CLOEXEC
|
| 2427 |
qemu_set_cloexec(fd); |
| 2428 |
#endif
|
| 2429 |
if (s->msgfd != -1) |
| 2430 |
close(s->msgfd); |
| 2431 |
s->msgfd = fd; |
| 2432 |
} |
| 2433 |
} |
| 2434 |
|
| 2435 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
| 2436 |
{
|
| 2437 |
TCPCharDriver *s = chr->opaque; |
| 2438 |
struct msghdr msg = { NULL, }; |
| 2439 |
struct iovec iov[1]; |
| 2440 |
union {
|
| 2441 |
struct cmsghdr cmsg;
|
| 2442 |
char control[CMSG_SPACE(sizeof(int))]; |
| 2443 |
} msg_control; |
| 2444 |
int flags = 0; |
| 2445 |
ssize_t ret; |
| 2446 |
|
| 2447 |
iov[0].iov_base = buf;
|
| 2448 |
iov[0].iov_len = len;
|
| 2449 |
|
| 2450 |
msg.msg_iov = iov; |
| 2451 |
msg.msg_iovlen = 1;
|
| 2452 |
msg.msg_control = &msg_control; |
| 2453 |
msg.msg_controllen = sizeof(msg_control);
|
| 2454 |
|
| 2455 |
#ifdef MSG_CMSG_CLOEXEC
|
| 2456 |
flags |= MSG_CMSG_CLOEXEC; |
| 2457 |
#endif
|
| 2458 |
ret = recvmsg(s->fd, &msg, flags); |
| 2459 |
if (ret > 0 && s->is_unix) { |
| 2460 |
unix_process_msgfd(chr, &msg); |
| 2461 |
} |
| 2462 |
|
| 2463 |
return ret;
|
| 2464 |
} |
| 2465 |
#else
|
| 2466 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
| 2467 |
{
|
| 2468 |
TCPCharDriver *s = chr->opaque; |
| 2469 |
return qemu_recv(s->fd, buf, len, 0); |
| 2470 |
} |
| 2471 |
#endif
|
| 2472 |
|
| 2473 |
static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond)
|
| 2474 |
{
|
| 2475 |
TCPCharDriver *s = chr->opaque; |
| 2476 |
return g_io_create_watch(s->chan, cond);
|
| 2477 |
} |
| 2478 |
|
| 2479 |
static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
| 2480 |
{
|
| 2481 |
CharDriverState *chr = opaque; |
| 2482 |
TCPCharDriver *s = chr->opaque; |
| 2483 |
uint8_t buf[READ_BUF_LEN]; |
| 2484 |
int len, size;
|
| 2485 |
|
| 2486 |
if (!s->connected || s->max_size <= 0) { |
| 2487 |
return FALSE;
|
| 2488 |
} |
| 2489 |
len = sizeof(buf);
|
| 2490 |
if (len > s->max_size)
|
| 2491 |
len = s->max_size; |
| 2492 |
size = tcp_chr_recv(chr, (void *)buf, len);
|
| 2493 |
if (size == 0) { |
| 2494 |
/* connection closed */
|
| 2495 |
s->connected = 0;
|
| 2496 |
if (s->listen_chan) {
|
| 2497 |
s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr); |
| 2498 |
} |
| 2499 |
g_source_remove(s->tag); |
| 2500 |
s->tag = 0;
|
| 2501 |
g_io_channel_unref(s->chan); |
| 2502 |
s->chan = NULL;
|
| 2503 |
closesocket(s->fd); |
| 2504 |
s->fd = -1;
|
| 2505 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 2506 |
} else if (size > 0) { |
| 2507 |
if (s->do_telnetopt)
|
| 2508 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
| 2509 |
if (size > 0) |
| 2510 |
qemu_chr_be_write(chr, buf, size); |
| 2511 |
} |
| 2512 |
|
| 2513 |
return TRUE;
|
| 2514 |
} |
| 2515 |
|
| 2516 |
#ifndef _WIN32
|
| 2517 |
CharDriverState *qemu_chr_open_eventfd(int eventfd)
|
| 2518 |
{
|
| 2519 |
return qemu_chr_open_fd(eventfd, eventfd);
|
| 2520 |
} |
| 2521 |
#endif
|
| 2522 |
|
| 2523 |
static void tcp_chr_connect(void *opaque) |
| 2524 |
{
|
| 2525 |
CharDriverState *chr = opaque; |
| 2526 |
TCPCharDriver *s = chr->opaque; |
| 2527 |
|
| 2528 |
s->connected = 1;
|
| 2529 |
if (s->chan) {
|
| 2530 |
s->tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, tcp_chr_read, chr); |
| 2531 |
} |
| 2532 |
qemu_chr_be_generic_open(chr); |
| 2533 |
} |
| 2534 |
|
| 2535 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
| 2536 |
static void tcp_chr_telnet_init(int fd) |
| 2537 |
{
|
| 2538 |
char buf[3]; |
| 2539 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
| 2540 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
| 2541 |
send(fd, (char *)buf, 3, 0); |
| 2542 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
| 2543 |
send(fd, (char *)buf, 3, 0); |
| 2544 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
| 2545 |
send(fd, (char *)buf, 3, 0); |
| 2546 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
| 2547 |
send(fd, (char *)buf, 3, 0); |
| 2548 |
} |
| 2549 |
|
| 2550 |
static int tcp_chr_add_client(CharDriverState *chr, int fd) |
| 2551 |
{
|
| 2552 |
TCPCharDriver *s = chr->opaque; |
| 2553 |
if (s->fd != -1) |
| 2554 |
return -1; |
| 2555 |
|
| 2556 |
qemu_set_nonblock(fd); |
| 2557 |
if (s->do_nodelay)
|
| 2558 |
socket_set_nodelay(fd); |
| 2559 |
s->fd = fd; |
| 2560 |
s->chan = io_channel_from_socket(fd); |
| 2561 |
g_source_remove(s->listen_tag); |
| 2562 |
s->listen_tag = 0;
|
| 2563 |
tcp_chr_connect(chr); |
| 2564 |
|
| 2565 |
return 0; |
| 2566 |
} |
| 2567 |
|
| 2568 |
static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque) |
| 2569 |
{
|
| 2570 |
CharDriverState *chr = opaque; |
| 2571 |
TCPCharDriver *s = chr->opaque; |
| 2572 |
struct sockaddr_in saddr;
|
| 2573 |
#ifndef _WIN32
|
| 2574 |
struct sockaddr_un uaddr;
|
| 2575 |
#endif
|
| 2576 |
struct sockaddr *addr;
|
| 2577 |
socklen_t len; |
| 2578 |
int fd;
|
| 2579 |
|
| 2580 |
for(;;) {
|
| 2581 |
#ifndef _WIN32
|
| 2582 |
if (s->is_unix) {
|
| 2583 |
len = sizeof(uaddr);
|
| 2584 |
addr = (struct sockaddr *)&uaddr;
|
| 2585 |
} else
|
| 2586 |
#endif
|
| 2587 |
{
|
| 2588 |
len = sizeof(saddr);
|
| 2589 |
addr = (struct sockaddr *)&saddr;
|
| 2590 |
} |
| 2591 |
fd = qemu_accept(s->listen_fd, addr, &len); |
| 2592 |
if (fd < 0 && errno != EINTR) { |
| 2593 |
return FALSE;
|
| 2594 |
} else if (fd >= 0) { |
| 2595 |
if (s->do_telnetopt)
|
| 2596 |
tcp_chr_telnet_init(fd); |
| 2597 |
break;
|
| 2598 |
} |
| 2599 |
} |
| 2600 |
if (tcp_chr_add_client(chr, fd) < 0) |
| 2601 |
close(fd); |
| 2602 |
|
| 2603 |
return TRUE;
|
| 2604 |
} |
| 2605 |
|
| 2606 |
static void tcp_chr_close(CharDriverState *chr) |
| 2607 |
{
|
| 2608 |
TCPCharDriver *s = chr->opaque; |
| 2609 |
if (s->fd >= 0) { |
| 2610 |
if (s->tag) {
|
| 2611 |
g_source_remove(s->tag); |
| 2612 |
} |
| 2613 |
if (s->chan) {
|
| 2614 |
g_io_channel_unref(s->chan); |
| 2615 |
} |
| 2616 |
closesocket(s->fd); |
| 2617 |
} |
| 2618 |
if (s->listen_fd >= 0) { |
| 2619 |
if (s->listen_tag) {
|
| 2620 |
g_source_remove(s->listen_tag); |
| 2621 |
} |
| 2622 |
if (s->listen_chan) {
|
| 2623 |
g_io_channel_unref(s->listen_chan); |
| 2624 |
} |
| 2625 |
closesocket(s->listen_fd); |
| 2626 |
} |
| 2627 |
g_free(s); |
| 2628 |
qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 2629 |
} |
| 2630 |
|
| 2631 |
static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay, |
| 2632 |
bool is_listen, bool is_telnet, |
| 2633 |
bool is_waitconnect,
|
| 2634 |
Error **errp) |
| 2635 |
{
|
| 2636 |
CharDriverState *chr = NULL;
|
| 2637 |
TCPCharDriver *s = NULL;
|
| 2638 |
char host[NI_MAXHOST], serv[NI_MAXSERV];
|
| 2639 |
const char *left = "", *right = ""; |
| 2640 |
struct sockaddr_storage ss;
|
| 2641 |
socklen_t ss_len = sizeof(ss);
|
| 2642 |
|
| 2643 |
memset(&ss, 0, ss_len);
|
| 2644 |
if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) { |
| 2645 |
error_setg(errp, "getsockname: %s", strerror(errno));
|
| 2646 |
return NULL; |
| 2647 |
} |
| 2648 |
|
| 2649 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 2650 |
s = g_malloc0(sizeof(TCPCharDriver));
|
| 2651 |
|
| 2652 |
s->connected = 0;
|
| 2653 |
s->fd = -1;
|
| 2654 |
s->listen_fd = -1;
|
| 2655 |
s->msgfd = -1;
|
| 2656 |
|
| 2657 |
chr->filename = g_malloc(256);
|
| 2658 |
switch (ss.ss_family) {
|
| 2659 |
#ifndef _WIN32
|
| 2660 |
case AF_UNIX:
|
| 2661 |
s->is_unix = 1;
|
| 2662 |
snprintf(chr->filename, 256, "unix:%s%s", |
| 2663 |
((struct sockaddr_un *)(&ss))->sun_path,
|
| 2664 |
is_listen ? ",server" : ""); |
| 2665 |
break;
|
| 2666 |
#endif
|
| 2667 |
case AF_INET6:
|
| 2668 |
left = "[";
|
| 2669 |
right = "]";
|
| 2670 |
/* fall through */
|
| 2671 |
case AF_INET:
|
| 2672 |
s->do_nodelay = do_nodelay; |
| 2673 |
getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host), |
| 2674 |
serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
|
| 2675 |
snprintf(chr->filename, 256, "%s:%s%s%s:%s%s", |
| 2676 |
is_telnet ? "telnet" : "tcp", |
| 2677 |
left, host, right, serv, |
| 2678 |
is_listen ? ",server" : ""); |
| 2679 |
break;
|
| 2680 |
} |
| 2681 |
|
| 2682 |
chr->opaque = s; |
| 2683 |
chr->chr_write = tcp_chr_write; |
| 2684 |
chr->chr_close = tcp_chr_close; |
| 2685 |
chr->get_msgfd = tcp_get_msgfd; |
| 2686 |
chr->chr_add_client = tcp_chr_add_client; |
| 2687 |
chr->chr_add_watch = tcp_chr_add_watch; |
| 2688 |
|
| 2689 |
if (is_listen) {
|
| 2690 |
s->listen_fd = fd; |
| 2691 |
s->listen_chan = io_channel_from_socket(s->listen_fd); |
| 2692 |
s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr); |
| 2693 |
if (is_telnet) {
|
| 2694 |
s->do_telnetopt = 1;
|
| 2695 |
} |
| 2696 |
} else {
|
| 2697 |
s->connected = 1;
|
| 2698 |
s->fd = fd; |
| 2699 |
socket_set_nodelay(fd); |
| 2700 |
s->chan = io_channel_from_socket(s->fd); |
| 2701 |
tcp_chr_connect(chr); |
| 2702 |
} |
| 2703 |
|
| 2704 |
if (is_listen && is_waitconnect) {
|
| 2705 |
printf("QEMU waiting for connection on: %s\n",
|
| 2706 |
chr->filename); |
| 2707 |
tcp_chr_accept(s->listen_chan, G_IO_IN, chr); |
| 2708 |
qemu_set_nonblock(s->listen_fd); |
| 2709 |
} |
| 2710 |
return chr;
|
| 2711 |
} |
| 2712 |
|
| 2713 |
static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
|
| 2714 |
{
|
| 2715 |
CharDriverState *chr = NULL;
|
| 2716 |
Error *local_err = NULL;
|
| 2717 |
int fd = -1; |
| 2718 |
int is_listen;
|
| 2719 |
int is_waitconnect;
|
| 2720 |
int do_nodelay;
|
| 2721 |
int is_unix;
|
| 2722 |
int is_telnet;
|
| 2723 |
|
| 2724 |
is_listen = qemu_opt_get_bool(opts, "server", 0); |
| 2725 |
is_waitconnect = qemu_opt_get_bool(opts, "wait", 1); |
| 2726 |
is_telnet = qemu_opt_get_bool(opts, "telnet", 0); |
| 2727 |
do_nodelay = !qemu_opt_get_bool(opts, "delay", 1); |
| 2728 |
is_unix = qemu_opt_get(opts, "path") != NULL; |
| 2729 |
if (!is_listen)
|
| 2730 |
is_waitconnect = 0;
|
| 2731 |
|
| 2732 |
if (is_unix) {
|
| 2733 |
if (is_listen) {
|
| 2734 |
fd = unix_listen_opts(opts, &local_err); |
| 2735 |
} else {
|
| 2736 |
fd = unix_connect_opts(opts, &local_err, NULL, NULL); |
| 2737 |
} |
| 2738 |
} else {
|
| 2739 |
if (is_listen) {
|
| 2740 |
fd = inet_listen_opts(opts, 0, &local_err);
|
| 2741 |
} else {
|
| 2742 |
fd = inet_connect_opts(opts, &local_err, NULL, NULL); |
| 2743 |
} |
| 2744 |
} |
| 2745 |
if (fd < 0) { |
| 2746 |
goto fail;
|
| 2747 |
} |
| 2748 |
|
| 2749 |
if (!is_waitconnect)
|
| 2750 |
qemu_set_nonblock(fd); |
| 2751 |
|
| 2752 |
chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet, |
| 2753 |
is_waitconnect, &local_err); |
| 2754 |
if (error_is_set(&local_err)) {
|
| 2755 |
goto fail;
|
| 2756 |
} |
| 2757 |
return chr;
|
| 2758 |
|
| 2759 |
|
| 2760 |
fail:
|
| 2761 |
if (local_err) {
|
| 2762 |
qerror_report_err(local_err); |
| 2763 |
error_free(local_err); |
| 2764 |
} |
| 2765 |
if (fd >= 0) { |
| 2766 |
closesocket(fd); |
| 2767 |
} |
| 2768 |
if (chr) {
|
| 2769 |
g_free(chr->opaque); |
| 2770 |
g_free(chr); |
| 2771 |
} |
| 2772 |
return NULL; |
| 2773 |
} |
| 2774 |
|
| 2775 |
/*********************************************************/
|
| 2776 |
/* Ring buffer chardev */
|
| 2777 |
|
| 2778 |
typedef struct { |
| 2779 |
size_t size; |
| 2780 |
size_t prod; |
| 2781 |
size_t cons; |
| 2782 |
uint8_t *cbuf; |
| 2783 |
} RingBufCharDriver; |
| 2784 |
|
| 2785 |
static size_t ringbuf_count(const CharDriverState *chr) |
| 2786 |
{
|
| 2787 |
const RingBufCharDriver *d = chr->opaque;
|
| 2788 |
|
| 2789 |
return d->prod - d->cons;
|
| 2790 |
} |
| 2791 |
|
| 2792 |
static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2793 |
{
|
| 2794 |
RingBufCharDriver *d = chr->opaque; |
| 2795 |
int i;
|
| 2796 |
|
| 2797 |
if (!buf || (len < 0)) { |
| 2798 |
return -1; |
| 2799 |
} |
| 2800 |
|
| 2801 |
for (i = 0; i < len; i++ ) { |
| 2802 |
d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
|
| 2803 |
if (d->prod - d->cons > d->size) {
|
| 2804 |
d->cons = d->prod - d->size; |
| 2805 |
} |
| 2806 |
} |
| 2807 |
|
| 2808 |
return 0; |
| 2809 |
} |
| 2810 |
|
| 2811 |
static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len) |
| 2812 |
{
|
| 2813 |
RingBufCharDriver *d = chr->opaque; |
| 2814 |
int i;
|
| 2815 |
|
| 2816 |
for (i = 0; i < len && d->cons != d->prod; i++) { |
| 2817 |
buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
|
| 2818 |
} |
| 2819 |
|
| 2820 |
return i;
|
| 2821 |
} |
| 2822 |
|
| 2823 |
static void ringbuf_chr_close(struct CharDriverState *chr) |
| 2824 |
{
|
| 2825 |
RingBufCharDriver *d = chr->opaque; |
| 2826 |
|
| 2827 |
g_free(d->cbuf); |
| 2828 |
g_free(d); |
| 2829 |
chr->opaque = NULL;
|
| 2830 |
} |
| 2831 |
|
| 2832 |
static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
|
| 2833 |
Error **errp) |
| 2834 |
{
|
| 2835 |
CharDriverState *chr; |
| 2836 |
RingBufCharDriver *d; |
| 2837 |
|
| 2838 |
chr = g_malloc0(sizeof(CharDriverState));
|
| 2839 |
d = g_malloc(sizeof(*d));
|
| 2840 |
|
| 2841 |
d->size = opts->has_size ? opts->size : 65536;
|
| 2842 |
|
| 2843 |
/* The size must be power of 2 */
|
| 2844 |
if (d->size & (d->size - 1)) { |
| 2845 |
error_setg(errp, "size of ringbuf chardev must be power of two");
|
| 2846 |
goto fail;
|
| 2847 |
} |
| 2848 |
|
| 2849 |
d->prod = 0;
|
| 2850 |
d->cons = 0;
|
| 2851 |
d->cbuf = g_malloc0(d->size); |
| 2852 |
|
| 2853 |
chr->opaque = d; |
| 2854 |
chr->chr_write = ringbuf_chr_write; |
| 2855 |
chr->chr_close = ringbuf_chr_close; |
| 2856 |
|
| 2857 |
return chr;
|
| 2858 |
|
| 2859 |
fail:
|
| 2860 |
g_free(d); |
| 2861 |
g_free(chr); |
| 2862 |
return NULL; |
| 2863 |
} |
| 2864 |
|
| 2865 |
static bool chr_is_ringbuf(const CharDriverState *chr) |
| 2866 |
{
|
| 2867 |
return chr->chr_write == ringbuf_chr_write;
|
| 2868 |
} |
| 2869 |
|
| 2870 |
void qmp_ringbuf_write(const char *device, const char *data, |
| 2871 |
bool has_format, enum DataFormat format, |
| 2872 |
Error **errp) |
| 2873 |
{
|
| 2874 |
CharDriverState *chr; |
| 2875 |
const uint8_t *write_data;
|
| 2876 |
int ret;
|
| 2877 |
size_t write_count; |
| 2878 |
|
| 2879 |
chr = qemu_chr_find(device); |
| 2880 |
if (!chr) {
|
| 2881 |
error_setg(errp, "Device '%s' not found", device);
|
| 2882 |
return;
|
| 2883 |
} |
| 2884 |
|
| 2885 |
if (!chr_is_ringbuf(chr)) {
|
| 2886 |
error_setg(errp,"%s is not a ringbuf device", device);
|
| 2887 |
return;
|
| 2888 |
} |
| 2889 |
|
| 2890 |
if (has_format && (format == DATA_FORMAT_BASE64)) {
|
| 2891 |
write_data = g_base64_decode(data, &write_count); |
| 2892 |
} else {
|
| 2893 |
write_data = (uint8_t *)data; |
| 2894 |
write_count = strlen(data); |
| 2895 |
} |
| 2896 |
|
| 2897 |
ret = ringbuf_chr_write(chr, write_data, write_count); |
| 2898 |
|
| 2899 |
if (write_data != (uint8_t *)data) {
|
| 2900 |
g_free((void *)write_data);
|
| 2901 |
} |
| 2902 |
|
| 2903 |
if (ret < 0) { |
| 2904 |
error_setg(errp, "Failed to write to device %s", device);
|
| 2905 |
return;
|
| 2906 |
} |
| 2907 |
} |
| 2908 |
|
| 2909 |
char *qmp_ringbuf_read(const char *device, int64_t size, |
| 2910 |
bool has_format, enum DataFormat format, |
| 2911 |
Error **errp) |
| 2912 |
{
|
| 2913 |
CharDriverState *chr; |
| 2914 |
uint8_t *read_data; |
| 2915 |
size_t count; |
| 2916 |
char *data;
|
| 2917 |
|
| 2918 |
chr = qemu_chr_find(device); |
| 2919 |
if (!chr) {
|
| 2920 |
error_setg(errp, "Device '%s' not found", device);
|
| 2921 |
return NULL; |
| 2922 |
} |
| 2923 |
|
| 2924 |
if (!chr_is_ringbuf(chr)) {
|
| 2925 |
error_setg(errp,"%s is not a ringbuf device", device);
|
| 2926 |
return NULL; |
| 2927 |
} |
| 2928 |
|
| 2929 |
if (size <= 0) { |
| 2930 |
error_setg(errp, "size must be greater than zero");
|
| 2931 |
return NULL; |
| 2932 |
} |
| 2933 |
|
| 2934 |
count = ringbuf_count(chr); |
| 2935 |
size = size > count ? count : size; |
| 2936 |
read_data = g_malloc(size + 1);
|
| 2937 |
|
| 2938 |
ringbuf_chr_read(chr, read_data, size); |
| 2939 |
|
| 2940 |
if (has_format && (format == DATA_FORMAT_BASE64)) {
|
| 2941 |
data = g_base64_encode(read_data, size); |
| 2942 |
g_free(read_data); |
| 2943 |
} else {
|
| 2944 |
/*
|
| 2945 |
* FIXME should read only complete, valid UTF-8 characters up
|
| 2946 |
* to @size bytes. Invalid sequences should be replaced by a
|
| 2947 |
* suitable replacement character. Except when (and only
|
| 2948 |
* when) ring buffer lost characters since last read, initial
|
| 2949 |
* continuation characters should be dropped.
|
| 2950 |
*/
|
| 2951 |
read_data[size] = 0;
|
| 2952 |
data = (char *)read_data;
|
| 2953 |
} |
| 2954 |
|
| 2955 |
return data;
|
| 2956 |
} |
| 2957 |
|
| 2958 |
QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename) |
| 2959 |
{
|
| 2960 |
char host[65], port[33], width[8], height[8]; |
| 2961 |
int pos;
|
| 2962 |
const char *p; |
| 2963 |
QemuOpts *opts; |
| 2964 |
Error *local_err = NULL;
|
| 2965 |
|
| 2966 |
opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err); |
| 2967 |
if (error_is_set(&local_err)) {
|
| 2968 |
qerror_report_err(local_err); |
| 2969 |
error_free(local_err); |
| 2970 |
return NULL; |
| 2971 |
} |
| 2972 |
|
| 2973 |
if (strstart(filename, "mon:", &p)) { |
| 2974 |
filename = p; |
| 2975 |
qemu_opt_set(opts, "mux", "on"); |
| 2976 |
} |
| 2977 |
|
| 2978 |
if (strcmp(filename, "null") == 0 || |
| 2979 |
strcmp(filename, "pty") == 0 || |
| 2980 |
strcmp(filename, "msmouse") == 0 || |
| 2981 |
strcmp(filename, "braille") == 0 || |
| 2982 |
strcmp(filename, "stdio") == 0) { |
| 2983 |
qemu_opt_set(opts, "backend", filename);
|
| 2984 |
return opts;
|
| 2985 |
} |
| 2986 |
if (strstart(filename, "vc", &p)) { |
| 2987 |
qemu_opt_set(opts, "backend", "vc"); |
| 2988 |
if (*p == ':') { |
| 2989 |
if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) { |
| 2990 |
/* pixels */
|
| 2991 |
qemu_opt_set(opts, "width", width);
|
| 2992 |
qemu_opt_set(opts, "height", height);
|
| 2993 |
} else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) { |
| 2994 |
/* chars */
|
| 2995 |
qemu_opt_set(opts, "cols", width);
|
| 2996 |
qemu_opt_set(opts, "rows", height);
|
| 2997 |
} else {
|
| 2998 |
goto fail;
|
| 2999 |
} |
| 3000 |
} |
| 3001 |
return opts;
|
| 3002 |
} |
| 3003 |
if (strcmp(filename, "con:") == 0) { |
| 3004 |
qemu_opt_set(opts, "backend", "console"); |
| 3005 |
return opts;
|
| 3006 |
} |
| 3007 |
if (strstart(filename, "COM", NULL)) { |
| 3008 |
qemu_opt_set(opts, "backend", "serial"); |
| 3009 |
qemu_opt_set(opts, "path", filename);
|
| 3010 |
return opts;
|
| 3011 |
} |
| 3012 |
if (strstart(filename, "file:", &p)) { |
| 3013 |
qemu_opt_set(opts, "backend", "file"); |
| 3014 |
qemu_opt_set(opts, "path", p);
|
| 3015 |
return opts;
|
| 3016 |
} |
| 3017 |
if (strstart(filename, "pipe:", &p)) { |
| 3018 |
qemu_opt_set(opts, "backend", "pipe"); |
| 3019 |
qemu_opt_set(opts, "path", p);
|
| 3020 |
return opts;
|
| 3021 |
} |
| 3022 |
if (strstart(filename, "tcp:", &p) || |
| 3023 |
strstart(filename, "telnet:", &p)) {
|
| 3024 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
| 3025 |
host[0] = 0; |
| 3026 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) |
| 3027 |
goto fail;
|
| 3028 |
} |
| 3029 |
qemu_opt_set(opts, "backend", "socket"); |
| 3030 |
qemu_opt_set(opts, "host", host);
|
| 3031 |
qemu_opt_set(opts, "port", port);
|
| 3032 |
if (p[pos] == ',') { |
| 3033 |
if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0) |
| 3034 |
goto fail;
|
| 3035 |
} |
| 3036 |
if (strstart(filename, "telnet:", &p)) |
| 3037 |
qemu_opt_set(opts, "telnet", "on"); |
| 3038 |
return opts;
|
| 3039 |
} |
| 3040 |
if (strstart(filename, "udp:", &p)) { |
| 3041 |
qemu_opt_set(opts, "backend", "udp"); |
| 3042 |
if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) { |
| 3043 |
host[0] = 0; |
| 3044 |
if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) { |
| 3045 |
goto fail;
|
| 3046 |
} |
| 3047 |
} |
| 3048 |
qemu_opt_set(opts, "host", host);
|
| 3049 |
qemu_opt_set(opts, "port", port);
|
| 3050 |
if (p[pos] == '@') { |
| 3051 |
p += pos + 1;
|
| 3052 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
| 3053 |
host[0] = 0; |
| 3054 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) { |
| 3055 |
goto fail;
|
| 3056 |
} |
| 3057 |
} |
| 3058 |
qemu_opt_set(opts, "localaddr", host);
|
| 3059 |
qemu_opt_set(opts, "localport", port);
|
| 3060 |
} |
| 3061 |
return opts;
|
| 3062 |
} |
| 3063 |
if (strstart(filename, "unix:", &p)) { |
| 3064 |
qemu_opt_set(opts, "backend", "socket"); |
| 3065 |
if (qemu_opts_do_parse(opts, p, "path") != 0) |
| 3066 |
goto fail;
|
| 3067 |
return opts;
|
| 3068 |
} |
| 3069 |
if (strstart(filename, "/dev/parport", NULL) || |
| 3070 |
strstart(filename, "/dev/ppi", NULL)) { |
| 3071 |
qemu_opt_set(opts, "backend", "parport"); |
| 3072 |
qemu_opt_set(opts, "path", filename);
|
| 3073 |
return opts;
|
| 3074 |
} |
| 3075 |
if (strstart(filename, "/dev/", NULL)) { |
| 3076 |
qemu_opt_set(opts, "backend", "tty"); |
| 3077 |
qemu_opt_set(opts, "path", filename);
|
| 3078 |
return opts;
|
| 3079 |
} |
| 3080 |
|
| 3081 |
fail:
|
| 3082 |
qemu_opts_del(opts); |
| 3083 |
return NULL; |
| 3084 |
} |
| 3085 |
|
| 3086 |
static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend, |
| 3087 |
Error **errp) |
| 3088 |
{
|
| 3089 |
const char *path = qemu_opt_get(opts, "path"); |
| 3090 |
|
| 3091 |
if (path == NULL) { |
| 3092 |
error_setg(errp, "chardev: file: no filename given");
|
| 3093 |
return;
|
| 3094 |
} |
| 3095 |
backend->file = g_new0(ChardevFile, 1);
|
| 3096 |
backend->file->out = g_strdup(path); |
| 3097 |
} |
| 3098 |
|
| 3099 |
static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend, |
| 3100 |
Error **errp) |
| 3101 |
{
|
| 3102 |
backend->stdio = g_new0(ChardevStdio, 1);
|
| 3103 |
backend->stdio->has_signal = true;
|
| 3104 |
backend->stdio->signal = |
| 3105 |
qemu_opt_get_bool(opts, "signal", display_type != DT_NOGRAPHIC);
|
| 3106 |
} |
| 3107 |
|
| 3108 |
static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend, |
| 3109 |
Error **errp) |
| 3110 |
{
|
| 3111 |
const char *device = qemu_opt_get(opts, "path"); |
| 3112 |
|
| 3113 |
if (device == NULL) { |
| 3114 |
error_setg(errp, "chardev: serial/tty: no device path given");
|
| 3115 |
return;
|
| 3116 |
} |
| 3117 |
backend->serial = g_new0(ChardevHostdev, 1);
|
| 3118 |
backend->serial->device = g_strdup(device); |
| 3119 |
} |
| 3120 |
|
| 3121 |
static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend, |
| 3122 |
Error **errp) |
| 3123 |
{
|
| 3124 |
const char *device = qemu_opt_get(opts, "path"); |
| 3125 |
|
| 3126 |
if (device == NULL) { |
| 3127 |
error_setg(errp, "chardev: parallel: no device path given");
|
| 3128 |
return;
|
| 3129 |
} |
| 3130 |
backend->parallel = g_new0(ChardevHostdev, 1);
|
| 3131 |
backend->parallel->device = g_strdup(device); |
| 3132 |
} |
| 3133 |
|
| 3134 |
static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend, |
| 3135 |
Error **errp) |
| 3136 |
{
|
| 3137 |
const char *device = qemu_opt_get(opts, "path"); |
| 3138 |
|
| 3139 |
if (device == NULL) { |
| 3140 |
error_setg(errp, "chardev: pipe: no device path given");
|
| 3141 |
return;
|
| 3142 |
} |
| 3143 |
backend->pipe = g_new0(ChardevHostdev, 1);
|
| 3144 |
backend->pipe->device = g_strdup(device); |
| 3145 |
} |
| 3146 |
|
| 3147 |
static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend, |
| 3148 |
Error **errp) |
| 3149 |
{
|
| 3150 |
int val;
|
| 3151 |
|
| 3152 |
backend->memory = g_new0(ChardevRingbuf, 1);
|
| 3153 |
|
| 3154 |
val = qemu_opt_get_number(opts, "size", 0); |
| 3155 |
if (val != 0) { |
| 3156 |
backend->memory->has_size = true;
|
| 3157 |
backend->memory->size = val; |
| 3158 |
} |
| 3159 |
} |
| 3160 |
|
| 3161 |
typedef struct CharDriver { |
| 3162 |
const char *name; |
| 3163 |
/* old, pre qapi */
|
| 3164 |
CharDriverState *(*open)(QemuOpts *opts); |
| 3165 |
/* new, qapi-based */
|
| 3166 |
int kind;
|
| 3167 |
void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp);
|
| 3168 |
} CharDriver; |
| 3169 |
|
| 3170 |
static GSList *backends;
|
| 3171 |
|
| 3172 |
void register_char_driver(const char *name, CharDriverState *(*open)(QemuOpts *)) |
| 3173 |
{
|
| 3174 |
CharDriver *s; |
| 3175 |
|
| 3176 |
s = g_malloc0(sizeof(*s));
|
| 3177 |
s->name = g_strdup(name); |
| 3178 |
s->open = open; |
| 3179 |
|
| 3180 |
backends = g_slist_append(backends, s); |
| 3181 |
} |
| 3182 |
|
| 3183 |
void register_char_driver_qapi(const char *name, int kind, |
| 3184 |
void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp))
|
| 3185 |
{
|
| 3186 |
CharDriver *s; |
| 3187 |
|
| 3188 |
s = g_malloc0(sizeof(*s));
|
| 3189 |
s->name = g_strdup(name); |
| 3190 |
s->kind = kind; |
| 3191 |
s->parse = parse; |
| 3192 |
|
| 3193 |
backends = g_slist_append(backends, s); |
| 3194 |
} |
| 3195 |
|
| 3196 |
CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts, |
| 3197 |
void (*init)(struct CharDriverState *s), |
| 3198 |
Error **errp) |
| 3199 |
{
|
| 3200 |
CharDriver *cd; |
| 3201 |
CharDriverState *chr; |
| 3202 |
GSList *i; |
| 3203 |
|
| 3204 |
if (qemu_opts_id(opts) == NULL) { |
| 3205 |
error_setg(errp, "chardev: no id specified");
|
| 3206 |
goto err;
|
| 3207 |
} |
| 3208 |
|
| 3209 |
if (qemu_opt_get(opts, "backend") == NULL) { |
| 3210 |
error_setg(errp, "chardev: \"%s\" missing backend",
|
| 3211 |
qemu_opts_id(opts)); |
| 3212 |
goto err;
|
| 3213 |
} |
| 3214 |
for (i = backends; i; i = i->next) {
|
| 3215 |
cd = i->data; |
| 3216 |
|
| 3217 |
if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) { |
| 3218 |
break;
|
| 3219 |
} |
| 3220 |
} |
| 3221 |
if (i == NULL) { |
| 3222 |
error_setg(errp, "chardev: backend \"%s\" not found",
|
| 3223 |
qemu_opt_get(opts, "backend"));
|
| 3224 |
return NULL; |
| 3225 |
} |
| 3226 |
|
| 3227 |
if (!cd->open) {
|
| 3228 |
/* using new, qapi init */
|
| 3229 |
ChardevBackend *backend = g_new0(ChardevBackend, 1);
|
| 3230 |
ChardevReturn *ret = NULL;
|
| 3231 |
const char *id = qemu_opts_id(opts); |
| 3232 |
const char *bid = NULL; |
| 3233 |
|
| 3234 |
if (qemu_opt_get_bool(opts, "mux", 0)) { |
| 3235 |
bid = g_strdup_printf("%s-base", id);
|
| 3236 |
} |
| 3237 |
|
| 3238 |
chr = NULL;
|
| 3239 |
backend->kind = cd->kind; |
| 3240 |
if (cd->parse) {
|
| 3241 |
cd->parse(opts, backend, errp); |
| 3242 |
if (error_is_set(errp)) {
|
| 3243 |
goto qapi_out;
|
| 3244 |
} |
| 3245 |
} |
| 3246 |
ret = qmp_chardev_add(bid ? bid : id, backend, errp); |
| 3247 |
if (error_is_set(errp)) {
|
| 3248 |
goto qapi_out;
|
| 3249 |
} |
| 3250 |
|
| 3251 |
if (bid) {
|
| 3252 |
qapi_free_ChardevBackend(backend); |
| 3253 |
qapi_free_ChardevReturn(ret); |
| 3254 |
backend = g_new0(ChardevBackend, 1);
|
| 3255 |
backend->mux = g_new0(ChardevMux, 1);
|
| 3256 |
backend->kind = CHARDEV_BACKEND_KIND_MUX; |
| 3257 |
backend->mux->chardev = g_strdup(bid); |
| 3258 |
ret = qmp_chardev_add(id, backend, errp); |
| 3259 |
if (error_is_set(errp)) {
|
| 3260 |
goto qapi_out;
|
| 3261 |
} |
| 3262 |
} |
| 3263 |
|
| 3264 |
chr = qemu_chr_find(id); |
| 3265 |
|
| 3266 |
qapi_out:
|
| 3267 |
qapi_free_ChardevBackend(backend); |
| 3268 |
qapi_free_ChardevReturn(ret); |
| 3269 |
return chr;
|
| 3270 |
} |
| 3271 |
|
| 3272 |
chr = cd->open(opts); |
| 3273 |
if (!chr) {
|
| 3274 |
error_setg(errp, "chardev: opening backend \"%s\" failed",
|
| 3275 |
qemu_opt_get(opts, "backend"));
|
| 3276 |
goto err;
|
| 3277 |
} |
| 3278 |
|
| 3279 |
if (!chr->filename)
|
| 3280 |
chr->filename = g_strdup(qemu_opt_get(opts, "backend"));
|
| 3281 |
chr->init = init; |
| 3282 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
| 3283 |
|
| 3284 |
if (qemu_opt_get_bool(opts, "mux", 0)) { |
| 3285 |
CharDriverState *base = chr; |
| 3286 |
int len = strlen(qemu_opts_id(opts)) + 6; |
| 3287 |
base->label = g_malloc(len); |
| 3288 |
snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
|
| 3289 |
chr = qemu_chr_open_mux(base); |
| 3290 |
chr->filename = base->filename; |
| 3291 |
chr->avail_connections = MAX_MUX; |
| 3292 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
| 3293 |
} else {
|
| 3294 |
chr->avail_connections = 1;
|
| 3295 |
} |
| 3296 |
chr->label = g_strdup(qemu_opts_id(opts)); |
| 3297 |
chr->opts = opts; |
| 3298 |
return chr;
|
| 3299 |
|
| 3300 |
err:
|
| 3301 |
qemu_opts_del(opts); |
| 3302 |
return NULL; |
| 3303 |
} |
| 3304 |
|
| 3305 |
CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) |
| 3306 |
{
|
| 3307 |
const char *p; |
| 3308 |
CharDriverState *chr; |
| 3309 |
QemuOpts *opts; |
| 3310 |
Error *err = NULL;
|
| 3311 |
|
| 3312 |
if (strstart(filename, "chardev:", &p)) { |
| 3313 |
return qemu_chr_find(p);
|
| 3314 |
} |
| 3315 |
|
| 3316 |
opts = qemu_chr_parse_compat(label, filename); |
| 3317 |
if (!opts)
|
| 3318 |
return NULL; |
| 3319 |
|
| 3320 |
chr = qemu_chr_new_from_opts(opts, init, &err); |
| 3321 |
if (error_is_set(&err)) {
|
| 3322 |
fprintf(stderr, "%s\n", error_get_pretty(err));
|
| 3323 |
error_free(err); |
| 3324 |
} |
| 3325 |
if (chr && qemu_opt_get_bool(opts, "mux", 0)) { |
| 3326 |
qemu_chr_fe_claim_no_fail(chr); |
| 3327 |
monitor_init(chr, MONITOR_USE_READLINE); |
| 3328 |
} |
| 3329 |
return chr;
|
| 3330 |
} |
| 3331 |
|
| 3332 |
void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo) |
| 3333 |
{
|
| 3334 |
if (chr->chr_set_echo) {
|
| 3335 |
chr->chr_set_echo(chr, echo); |
| 3336 |
} |
| 3337 |
} |
| 3338 |
|
| 3339 |
void qemu_chr_fe_set_open(struct CharDriverState *chr, int fe_open) |
| 3340 |
{
|
| 3341 |
if (chr->fe_open == fe_open) {
|
| 3342 |
return;
|
| 3343 |
} |
| 3344 |
chr->fe_open = fe_open; |
| 3345 |
if (chr->chr_set_fe_open) {
|
| 3346 |
chr->chr_set_fe_open(chr, fe_open); |
| 3347 |
} |
| 3348 |
} |
| 3349 |
|
| 3350 |
int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond,
|
| 3351 |
GIOFunc func, void *user_data)
|
| 3352 |
{
|
| 3353 |
GSource *src; |
| 3354 |
guint tag; |
| 3355 |
|
| 3356 |
if (s->chr_add_watch == NULL) { |
| 3357 |
return -ENOSYS;
|
| 3358 |
} |
| 3359 |
|
| 3360 |
src = s->chr_add_watch(s, cond); |
| 3361 |
g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
|
| 3362 |
tag = g_source_attach(src, NULL);
|
| 3363 |
g_source_unref(src); |
| 3364 |
|
| 3365 |
return tag;
|
| 3366 |
} |
| 3367 |
|
| 3368 |
int qemu_chr_fe_claim(CharDriverState *s)
|
| 3369 |
{
|
| 3370 |
if (s->avail_connections < 1) { |
| 3371 |
return -1; |
| 3372 |
} |
| 3373 |
s->avail_connections--; |
| 3374 |
return 0; |
| 3375 |
} |
| 3376 |
|
| 3377 |
void qemu_chr_fe_claim_no_fail(CharDriverState *s)
|
| 3378 |
{
|
| 3379 |
if (qemu_chr_fe_claim(s) != 0) { |
| 3380 |
fprintf(stderr, "%s: error chardev \"%s\" already used\n",
|
| 3381 |
__func__, s->label); |
| 3382 |
exit(1);
|
| 3383 |
} |
| 3384 |
} |
| 3385 |
|
| 3386 |
void qemu_chr_fe_release(CharDriverState *s)
|
| 3387 |
{
|
| 3388 |
s->avail_connections++; |
| 3389 |
} |
| 3390 |
|
| 3391 |
void qemu_chr_delete(CharDriverState *chr)
|
| 3392 |
{
|
| 3393 |
QTAILQ_REMOVE(&chardevs, chr, next); |
| 3394 |
if (chr->chr_close) {
|
| 3395 |
chr->chr_close(chr); |
| 3396 |
} |
| 3397 |
g_free(chr->filename); |
| 3398 |
g_free(chr->label); |
| 3399 |
if (chr->opts) {
|
| 3400 |
qemu_opts_del(chr->opts); |
| 3401 |
} |
| 3402 |
g_free(chr); |
| 3403 |
} |
| 3404 |
|
| 3405 |
ChardevInfoList *qmp_query_chardev(Error **errp) |
| 3406 |
{
|
| 3407 |
ChardevInfoList *chr_list = NULL;
|
| 3408 |
CharDriverState *chr; |
| 3409 |
|
| 3410 |
QTAILQ_FOREACH(chr, &chardevs, next) {
|
| 3411 |
ChardevInfoList *info = g_malloc0(sizeof(*info));
|
| 3412 |
info->value = g_malloc0(sizeof(*info->value));
|
| 3413 |
info->value->label = g_strdup(chr->label); |
| 3414 |
info->value->filename = g_strdup(chr->filename); |
| 3415 |
|
| 3416 |
info->next = chr_list; |
| 3417 |
chr_list = info; |
| 3418 |
} |
| 3419 |
|
| 3420 |
return chr_list;
|
| 3421 |
} |
| 3422 |
|
| 3423 |
CharDriverState *qemu_chr_find(const char *name) |
| 3424 |
{
|
| 3425 |
CharDriverState *chr; |
| 3426 |
|
| 3427 |
QTAILQ_FOREACH(chr, &chardevs, next) {
|
| 3428 |
if (strcmp(chr->label, name) != 0) |
| 3429 |
continue;
|
| 3430 |
return chr;
|
| 3431 |
} |
| 3432 |
return NULL; |
| 3433 |
} |
| 3434 |
|
| 3435 |
/* Get a character (serial) device interface. */
|
| 3436 |
CharDriverState *qemu_char_get_next_serial(void)
|
| 3437 |
{
|
| 3438 |
static int next_serial; |
| 3439 |
CharDriverState *chr; |
| 3440 |
|
| 3441 |
/* FIXME: This function needs to go away: use chardev properties! */
|
| 3442 |
|
| 3443 |
while (next_serial < MAX_SERIAL_PORTS && serial_hds[next_serial]) {
|
| 3444 |
chr = serial_hds[next_serial++]; |
| 3445 |
qemu_chr_fe_claim_no_fail(chr); |
| 3446 |
return chr;
|
| 3447 |
} |
| 3448 |
return NULL; |
| 3449 |
} |
| 3450 |
|
| 3451 |
QemuOptsList qemu_chardev_opts = {
|
| 3452 |
.name = "chardev",
|
| 3453 |
.implied_opt_name = "backend",
|
| 3454 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head), |
| 3455 |
.desc = {
|
| 3456 |
{
|
| 3457 |
.name = "backend",
|
| 3458 |
.type = QEMU_OPT_STRING, |
| 3459 |
},{
|
| 3460 |
.name = "path",
|
| 3461 |
.type = QEMU_OPT_STRING, |
| 3462 |
},{
|
| 3463 |
.name = "host",
|
| 3464 |
.type = QEMU_OPT_STRING, |
| 3465 |
},{
|
| 3466 |
.name = "port",
|
| 3467 |
.type = QEMU_OPT_STRING, |
| 3468 |
},{
|
| 3469 |
.name = "localaddr",
|
| 3470 |
.type = QEMU_OPT_STRING, |
| 3471 |
},{
|
| 3472 |
.name = "localport",
|
| 3473 |
.type = QEMU_OPT_STRING, |
| 3474 |
},{
|
| 3475 |
.name = "to",
|
| 3476 |
.type = QEMU_OPT_NUMBER, |
| 3477 |
},{
|
| 3478 |
.name = "ipv4",
|
| 3479 |
.type = QEMU_OPT_BOOL, |
| 3480 |
},{
|
| 3481 |
.name = "ipv6",
|
| 3482 |
.type = QEMU_OPT_BOOL, |
| 3483 |
},{
|
| 3484 |
.name = "wait",
|
| 3485 |
.type = QEMU_OPT_BOOL, |
| 3486 |
},{
|
| 3487 |
.name = "server",
|
| 3488 |
.type = QEMU_OPT_BOOL, |
| 3489 |
},{
|
| 3490 |
.name = "delay",
|
| 3491 |
.type = QEMU_OPT_BOOL, |
| 3492 |
},{
|
| 3493 |
.name = "telnet",
|
| 3494 |
.type = QEMU_OPT_BOOL, |
| 3495 |
},{
|
| 3496 |
.name = "width",
|
| 3497 |
.type = QEMU_OPT_NUMBER, |
| 3498 |
},{
|
| 3499 |
.name = "height",
|
| 3500 |
.type = QEMU_OPT_NUMBER, |
| 3501 |
},{
|
| 3502 |
.name = "cols",
|
| 3503 |
.type = QEMU_OPT_NUMBER, |
| 3504 |
},{
|
| 3505 |
.name = "rows",
|
| 3506 |
.type = QEMU_OPT_NUMBER, |
| 3507 |
},{
|
| 3508 |
.name = "mux",
|
| 3509 |
.type = QEMU_OPT_BOOL, |
| 3510 |
},{
|
| 3511 |
.name = "signal",
|
| 3512 |
.type = QEMU_OPT_BOOL, |
| 3513 |
},{
|
| 3514 |
.name = "name",
|
| 3515 |
.type = QEMU_OPT_STRING, |
| 3516 |
},{
|
| 3517 |
.name = "debug",
|
| 3518 |
.type = QEMU_OPT_NUMBER, |
| 3519 |
},{
|
| 3520 |
.name = "size",
|
| 3521 |
.type = QEMU_OPT_SIZE, |
| 3522 |
}, |
| 3523 |
{ /* end of list */ }
|
| 3524 |
}, |
| 3525 |
}; |
| 3526 |
|
| 3527 |
#ifdef _WIN32
|
| 3528 |
|
| 3529 |
static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
|
| 3530 |
{
|
| 3531 |
HANDLE out; |
| 3532 |
|
| 3533 |
if (file->in) {
|
| 3534 |
error_setg(errp, "input file not supported");
|
| 3535 |
return NULL; |
| 3536 |
} |
| 3537 |
|
| 3538 |
out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
| 3539 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
| 3540 |
if (out == INVALID_HANDLE_VALUE) {
|
| 3541 |
error_setg(errp, "open %s failed", file->out);
|
| 3542 |
return NULL; |
| 3543 |
} |
| 3544 |
return qemu_chr_open_win_file(out);
|
| 3545 |
} |
| 3546 |
|
| 3547 |
static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
|
| 3548 |
Error **errp) |
| 3549 |
{
|
| 3550 |
return qemu_chr_open_win_path(serial->device);
|
| 3551 |
} |
| 3552 |
|
| 3553 |
static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
|
| 3554 |
Error **errp) |
| 3555 |
{
|
| 3556 |
error_setg(errp, "character device backend type 'parallel' not supported");
|
| 3557 |
return NULL; |
| 3558 |
} |
| 3559 |
|
| 3560 |
#else /* WIN32 */ |
| 3561 |
|
| 3562 |
static int qmp_chardev_open_file_source(char *src, int flags, |
| 3563 |
Error **errp) |
| 3564 |
{
|
| 3565 |
int fd = -1; |
| 3566 |
|
| 3567 |
TFR(fd = qemu_open(src, flags, 0666));
|
| 3568 |
if (fd == -1) { |
| 3569 |
error_setg(errp, "open %s: %s", src, strerror(errno));
|
| 3570 |
} |
| 3571 |
return fd;
|
| 3572 |
} |
| 3573 |
|
| 3574 |
static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
|
| 3575 |
{
|
| 3576 |
int flags, in = -1, out = -1; |
| 3577 |
|
| 3578 |
flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY; |
| 3579 |
out = qmp_chardev_open_file_source(file->out, flags, errp); |
| 3580 |
if (error_is_set(errp)) {
|
| 3581 |
return NULL; |
| 3582 |
} |
| 3583 |
|
| 3584 |
if (file->in) {
|
| 3585 |
flags = O_RDONLY; |
| 3586 |
in = qmp_chardev_open_file_source(file->in, flags, errp); |
| 3587 |
if (error_is_set(errp)) {
|
| 3588 |
qemu_close(out); |
| 3589 |
return NULL; |
| 3590 |
} |
| 3591 |
} |
| 3592 |
|
| 3593 |
return qemu_chr_open_fd(in, out);
|
| 3594 |
} |
| 3595 |
|
| 3596 |
static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
|
| 3597 |
Error **errp) |
| 3598 |
{
|
| 3599 |
#ifdef HAVE_CHARDEV_TTY
|
| 3600 |
int fd;
|
| 3601 |
|
| 3602 |
fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp); |
| 3603 |
if (error_is_set(errp)) {
|
| 3604 |
return NULL; |
| 3605 |
} |
| 3606 |
qemu_set_nonblock(fd); |
| 3607 |
return qemu_chr_open_tty_fd(fd);
|
| 3608 |
#else
|
| 3609 |
error_setg(errp, "character device backend type 'serial' not supported");
|
| 3610 |
return NULL; |
| 3611 |
#endif
|
| 3612 |
} |
| 3613 |
|
| 3614 |
static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
|
| 3615 |
Error **errp) |
| 3616 |
{
|
| 3617 |
#ifdef HAVE_CHARDEV_PARPORT
|
| 3618 |
int fd;
|
| 3619 |
|
| 3620 |
fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp); |
| 3621 |
if (error_is_set(errp)) {
|
| 3622 |
return NULL; |
| 3623 |
} |
| 3624 |
return qemu_chr_open_pp_fd(fd);
|
| 3625 |
#else
|
| 3626 |
error_setg(errp, "character device backend type 'parallel' not supported");
|
| 3627 |
return NULL; |
| 3628 |
#endif
|
| 3629 |
} |
| 3630 |
|
| 3631 |
#endif /* WIN32 */ |
| 3632 |
|
| 3633 |
static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
|
| 3634 |
Error **errp) |
| 3635 |
{
|
| 3636 |
SocketAddress *addr = sock->addr; |
| 3637 |
bool do_nodelay = sock->has_nodelay ? sock->nodelay : false; |
| 3638 |
bool is_listen = sock->has_server ? sock->server : true; |
| 3639 |
bool is_telnet = sock->has_telnet ? sock->telnet : false; |
| 3640 |
bool is_waitconnect = sock->has_wait ? sock->wait : false; |
| 3641 |
int fd;
|
| 3642 |
|
| 3643 |
if (is_listen) {
|
| 3644 |
fd = socket_listen(addr, errp); |
| 3645 |
} else {
|
| 3646 |
fd = socket_connect(addr, errp, NULL, NULL); |
| 3647 |
} |
| 3648 |
if (error_is_set(errp)) {
|
| 3649 |
return NULL; |
| 3650 |
} |
| 3651 |
return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
|
| 3652 |
is_telnet, is_waitconnect, errp); |
| 3653 |
} |
| 3654 |
|
| 3655 |
static CharDriverState *qmp_chardev_open_dgram(ChardevDgram *dgram,
|
| 3656 |
Error **errp) |
| 3657 |
{
|
| 3658 |
int fd;
|
| 3659 |
|
| 3660 |
fd = socket_dgram(dgram->remote, dgram->local, errp); |
| 3661 |
if (error_is_set(errp)) {
|
| 3662 |
return NULL; |
| 3663 |
} |
| 3664 |
return qemu_chr_open_udp_fd(fd);
|
| 3665 |
} |
| 3666 |
|
| 3667 |
ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend, |
| 3668 |
Error **errp) |
| 3669 |
{
|
| 3670 |
ChardevReturn *ret = g_new0(ChardevReturn, 1);
|
| 3671 |
CharDriverState *base, *chr = NULL;
|
| 3672 |
|
| 3673 |
chr = qemu_chr_find(id); |
| 3674 |
if (chr) {
|
| 3675 |
error_setg(errp, "Chardev '%s' already exists", id);
|
| 3676 |
g_free(ret); |
| 3677 |
return NULL; |
| 3678 |
} |
| 3679 |
|
| 3680 |
switch (backend->kind) {
|
| 3681 |
case CHARDEV_BACKEND_KIND_FILE:
|
| 3682 |
chr = qmp_chardev_open_file(backend->file, errp); |
| 3683 |
break;
|
| 3684 |
case CHARDEV_BACKEND_KIND_SERIAL:
|
| 3685 |
chr = qmp_chardev_open_serial(backend->serial, errp); |
| 3686 |
break;
|
| 3687 |
case CHARDEV_BACKEND_KIND_PARALLEL:
|
| 3688 |
chr = qmp_chardev_open_parallel(backend->parallel, errp); |
| 3689 |
break;
|
| 3690 |
case CHARDEV_BACKEND_KIND_PIPE:
|
| 3691 |
chr = qemu_chr_open_pipe(backend->pipe); |
| 3692 |
break;
|
| 3693 |
case CHARDEV_BACKEND_KIND_SOCKET:
|
| 3694 |
chr = qmp_chardev_open_socket(backend->socket, errp); |
| 3695 |
break;
|
| 3696 |
case CHARDEV_BACKEND_KIND_DGRAM:
|
| 3697 |
chr = qmp_chardev_open_dgram(backend->dgram, errp); |
| 3698 |
break;
|
| 3699 |
#ifdef HAVE_CHARDEV_TTY
|
| 3700 |
case CHARDEV_BACKEND_KIND_PTY:
|
| 3701 |
chr = qemu_chr_open_pty(id, ret); |
| 3702 |
break;
|
| 3703 |
#endif
|
| 3704 |
case CHARDEV_BACKEND_KIND_NULL:
|
| 3705 |
chr = qemu_chr_open_null(); |
| 3706 |
break;
|
| 3707 |
case CHARDEV_BACKEND_KIND_MUX:
|
| 3708 |
base = qemu_chr_find(backend->mux->chardev); |
| 3709 |
if (base == NULL) { |
| 3710 |
error_setg(errp, "mux: base chardev %s not found",
|
| 3711 |
backend->mux->chardev); |
| 3712 |
break;
|
| 3713 |
} |
| 3714 |
chr = qemu_chr_open_mux(base); |
| 3715 |
break;
|
| 3716 |
case CHARDEV_BACKEND_KIND_MSMOUSE:
|
| 3717 |
chr = qemu_chr_open_msmouse(); |
| 3718 |
break;
|
| 3719 |
#ifdef CONFIG_BRLAPI
|
| 3720 |
case CHARDEV_BACKEND_KIND_BRAILLE:
|
| 3721 |
chr = chr_baum_init(); |
| 3722 |
break;
|
| 3723 |
#endif
|
| 3724 |
case CHARDEV_BACKEND_KIND_STDIO:
|
| 3725 |
chr = qemu_chr_open_stdio(backend->stdio); |
| 3726 |
break;
|
| 3727 |
#ifdef _WIN32
|
| 3728 |
case CHARDEV_BACKEND_KIND_CONSOLE:
|
| 3729 |
chr = qemu_chr_open_win_con(); |
| 3730 |
break;
|
| 3731 |
#endif
|
| 3732 |
#ifdef CONFIG_SPICE
|
| 3733 |
case CHARDEV_BACKEND_KIND_SPICEVMC:
|
| 3734 |
chr = qemu_chr_open_spice_vmc(backend->spicevmc->type); |
| 3735 |
break;
|
| 3736 |
case CHARDEV_BACKEND_KIND_SPICEPORT:
|
| 3737 |
chr = qemu_chr_open_spice_port(backend->spiceport->fqdn); |
| 3738 |
break;
|
| 3739 |
#endif
|
| 3740 |
case CHARDEV_BACKEND_KIND_VC:
|
| 3741 |
chr = vc_init(backend->vc); |
| 3742 |
break;
|
| 3743 |
case CHARDEV_BACKEND_KIND_MEMORY:
|
| 3744 |
chr = qemu_chr_open_ringbuf(backend->memory, errp); |
| 3745 |
break;
|
| 3746 |
default:
|
| 3747 |
error_setg(errp, "unknown chardev backend (%d)", backend->kind);
|
| 3748 |
break;
|
| 3749 |
} |
| 3750 |
|
| 3751 |
if (chr == NULL && !error_is_set(errp)) { |
| 3752 |
error_setg(errp, "Failed to create chardev");
|
| 3753 |
} |
| 3754 |
if (chr) {
|
| 3755 |
chr->label = g_strdup(id); |
| 3756 |
chr->avail_connections = |
| 3757 |
(backend->kind == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1;
|
| 3758 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
| 3759 |
return ret;
|
| 3760 |
} else {
|
| 3761 |
g_free(ret); |
| 3762 |
return NULL; |
| 3763 |
} |
| 3764 |
} |
| 3765 |
|
| 3766 |
void qmp_chardev_remove(const char *id, Error **errp) |
| 3767 |
{
|
| 3768 |
CharDriverState *chr; |
| 3769 |
|
| 3770 |
chr = qemu_chr_find(id); |
| 3771 |
if (NULL == chr) { |
| 3772 |
error_setg(errp, "Chardev '%s' not found", id);
|
| 3773 |
return;
|
| 3774 |
} |
| 3775 |
if (chr->chr_can_read || chr->chr_read ||
|
| 3776 |
chr->chr_event || chr->handler_opaque) {
|
| 3777 |
error_setg(errp, "Chardev '%s' is busy", id);
|
| 3778 |
return;
|
| 3779 |
} |
| 3780 |
qemu_chr_delete(chr); |
| 3781 |
} |
| 3782 |
|
| 3783 |
static void register_types(void) |
| 3784 |
{
|
| 3785 |
register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL); |
| 3786 |
register_char_driver("socket", qemu_chr_open_socket);
|
| 3787 |
register_char_driver("udp", qemu_chr_open_udp);
|
| 3788 |
register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
|
| 3789 |
qemu_chr_parse_ringbuf); |
| 3790 |
register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
|
| 3791 |
qemu_chr_parse_file_out); |
| 3792 |
register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,
|
| 3793 |
qemu_chr_parse_stdio); |
| 3794 |
register_char_driver_qapi("serial", CHARDEV_BACKEND_KIND_SERIAL,
|
| 3795 |
qemu_chr_parse_serial); |
| 3796 |
register_char_driver_qapi("tty", CHARDEV_BACKEND_KIND_SERIAL,
|
| 3797 |
qemu_chr_parse_serial); |
| 3798 |
register_char_driver_qapi("parallel", CHARDEV_BACKEND_KIND_PARALLEL,
|
| 3799 |
qemu_chr_parse_parallel); |
| 3800 |
register_char_driver_qapi("parport", CHARDEV_BACKEND_KIND_PARALLEL,
|
| 3801 |
qemu_chr_parse_parallel); |
| 3802 |
register_char_driver_qapi("pty", CHARDEV_BACKEND_KIND_PTY, NULL); |
| 3803 |
register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL); |
| 3804 |
register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
|
| 3805 |
qemu_chr_parse_pipe); |
| 3806 |
} |
| 3807 |
|
| 3808 |
type_init(register_types); |