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/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu-common.h" |
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#include "net.h" |
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#include "monitor.h" |
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#include "console.h" |
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#include "sysemu.h" |
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#include "qemu-timer.h" |
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#include "qemu-char.h" |
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#include "block.h" |
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#include "hw/usb.h" |
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#include "hw/baum.h" |
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#include "hw/msmouse.h" |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <signal.h> |
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#include <time.h> |
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#include <errno.h> |
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#include <sys/time.h> |
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#include <zlib.h> |
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#ifndef _WIN32
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#include <sys/times.h> |
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#include <sys/wait.h> |
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#include <termios.h> |
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#include <sys/mman.h> |
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#include <sys/ioctl.h> |
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#include <sys/resource.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <net/if.h> |
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#ifdef __NetBSD__
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#include <net/if_tap.h> |
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#endif
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#ifdef __linux__
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#include <linux/if_tun.h> |
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#endif
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#include <arpa/inet.h> |
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#include <dirent.h> |
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#include <netdb.h> |
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#include <sys/select.h> |
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#ifdef CONFIG_BSD
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#include <sys/stat.h> |
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#ifdef __FreeBSD__
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#include <libutil.h> |
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#include <dev/ppbus/ppi.h> |
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#include <dev/ppbus/ppbconf.h> |
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#elif defined(__DragonFly__)
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#include <libutil.h> |
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#include <dev/misc/ppi/ppi.h> |
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#include <bus/ppbus/ppbconf.h> |
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#else
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#include <util.h> |
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#endif
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#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
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#include <freebsd/stdlib.h> |
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#else
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#ifdef __linux__
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#include <pty.h> |
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#include <linux/ppdev.h> |
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#include <linux/parport.h> |
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#endif
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#ifdef __sun__
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#include <sys/stat.h> |
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#include <sys/ethernet.h> |
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#include <sys/sockio.h> |
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#include <netinet/arp.h> |
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#include <netinet/in.h> |
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#include <netinet/in_systm.h> |
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#include <netinet/ip.h> |
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#include <netinet/ip_icmp.h> // must come after ip.h |
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#include <netinet/udp.h> |
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#include <netinet/tcp.h> |
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#include <net/if.h> |
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#include <syslog.h> |
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#include <stropts.h> |
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#endif
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#endif
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#endif
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#include "qemu_socket.h" |
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/***********************************************************/
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/* character device */
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static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
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QTAILQ_HEAD_INITIALIZER(chardevs); |
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static int initial_reset_issued; |
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static void qemu_chr_event(CharDriverState *s, int event) |
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{ |
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if (!s->chr_event)
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return;
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s->chr_event(s->handler_opaque, event); |
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} |
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static void qemu_chr_reset_bh(void *opaque) |
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{ |
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CharDriverState *s = opaque; |
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qemu_chr_event(s, CHR_EVENT_RESET); |
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qemu_bh_delete(s->bh); |
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s->bh = NULL;
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} |
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void qemu_chr_reset(CharDriverState *s)
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{ |
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if (s->bh == NULL && initial_reset_issued) { |
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s->bh = qemu_bh_new(qemu_chr_reset_bh, s); |
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qemu_bh_schedule(s->bh); |
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} |
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} |
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void qemu_chr_initial_reset(void) |
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{ |
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CharDriverState *chr; |
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initial_reset_issued = 1;
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QTAILQ_FOREACH(chr, &chardevs, next) { |
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qemu_chr_reset(chr); |
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} |
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} |
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int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len) |
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{ |
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return s->chr_write(s, buf, len);
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} |
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int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg) |
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{ |
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if (!s->chr_ioctl)
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return -ENOTSUP;
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return s->chr_ioctl(s, cmd, arg);
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} |
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int qemu_chr_can_read(CharDriverState *s)
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{ |
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if (!s->chr_can_read)
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return 0; |
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return s->chr_can_read(s->handler_opaque);
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} |
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void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len) |
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{ |
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s->chr_read(s->handler_opaque, buf, len); |
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} |
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int qemu_chr_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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void qemu_chr_accept_input(CharDriverState *s)
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{ |
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if (s->chr_accept_input)
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s->chr_accept_input(s); |
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} |
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void qemu_chr_printf(CharDriverState *s, const char *fmt, ...) |
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{ |
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char buf[4096]; |
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va_list ap; |
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va_start(ap, fmt); |
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vsnprintf(buf, sizeof(buf), fmt, ap);
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qemu_chr_write(s, (uint8_t *)buf, strlen(buf)); |
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va_end(ap); |
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} |
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void qemu_chr_send_event(CharDriverState *s, int event) |
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{ |
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if (s->chr_send_event)
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s->chr_send_event(s, event); |
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} |
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void qemu_chr_add_handlers(CharDriverState *s,
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IOCanRWHandler *fd_can_read, |
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IOReadHandler *fd_read, |
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IOEventHandler *fd_event, |
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void *opaque)
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{ |
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s->chr_can_read = fd_can_read; |
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s->chr_read = fd_read; |
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s->chr_event = fd_event; |
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s->handler_opaque = opaque; |
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if (s->chr_update_read_handler)
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s->chr_update_read_handler(s); |
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} |
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static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
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{ |
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return len;
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} |
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static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
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{ |
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CharDriverState *chr; |
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chr = qemu_mallocz(sizeof(CharDriverState));
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chr->chr_write = null_chr_write; |
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return chr;
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} |
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/* MUX driver for serial I/O splitting */
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#define MAX_MUX 4 |
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#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */ |
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#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1) |
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typedef struct { |
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IOCanRWHandler *chr_can_read[MAX_MUX]; |
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IOReadHandler *chr_read[MAX_MUX]; |
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IOEventHandler *chr_event[MAX_MUX]; |
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void *ext_opaque[MAX_MUX];
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CharDriverState *drv; |
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int focus;
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int mux_cnt;
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int term_got_escape;
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int max_size;
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/* Intermediate input buffer allows to catch escape sequences even if the
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currently active device is not accepting any input - but only until it
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is full as well. */
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unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE]; |
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int prod[MAX_MUX];
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int cons[MAX_MUX];
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int timestamps;
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int linestart;
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int64_t timestamps_start; |
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} MuxDriver; |
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static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
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{ |
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MuxDriver *d = chr->opaque; |
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int ret;
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if (!d->timestamps) {
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ret = d->drv->chr_write(d->drv, buf, len); |
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} else {
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int i;
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ret = 0;
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for (i = 0; i < len; i++) { |
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if (d->linestart) {
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char buf1[64]; |
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int64_t ti; |
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int secs;
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ti = qemu_get_clock(rt_clock); |
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if (d->timestamps_start == -1) |
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d->timestamps_start = ti; |
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ti -= d->timestamps_start; |
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secs = ti / 1000;
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snprintf(buf1, sizeof(buf1),
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"[%02d:%02d:%02d.%03d] ",
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secs / 3600,
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(secs / 60) % 60, |
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secs % 60,
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(int)(ti % 1000)); |
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d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1)); |
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d->linestart = 0;
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} |
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ret += d->drv->chr_write(d->drv, buf+i, 1);
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if (buf[i] == '\n') { |
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d->linestart = 1;
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} |
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} |
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} |
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return ret;
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} |
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static const char * const mux_help[] = { |
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"% h print this help\n\r",
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"% x exit emulator\n\r",
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"% s save disk data back to file (if -snapshot)\n\r",
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"% t toggle console timestamps\n\r"
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"% b send break (magic sysrq)\n\r",
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"% c switch between console and monitor\n\r",
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"% % sends %\n\r",
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NULL
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}; |
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int term_escape_char = 0x01; /* ctrl-a is used for escape */ |
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static void mux_print_help(CharDriverState *chr) |
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{ |
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int i, j;
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char ebuf[15] = "Escape-Char"; |
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char cbuf[50] = "\n\r"; |
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if (term_escape_char > 0 && term_escape_char < 26) { |
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snprintf(cbuf, sizeof(cbuf), "\n\r"); |
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snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a'); |
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} else {
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snprintf(cbuf, sizeof(cbuf),
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"\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
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term_escape_char); |
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} |
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chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf)); |
318 |
for (i = 0; mux_help[i] != NULL; i++) { |
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for (j=0; mux_help[i][j] != '\0'; j++) { |
320 |
if (mux_help[i][j] == '%') |
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chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf)); |
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else
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chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
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} |
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} |
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} |
327 |
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static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event) |
329 |
{ |
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if (d->chr_event[mux_nr])
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d->chr_event[mux_nr](d->ext_opaque[mux_nr], event); |
332 |
} |
333 |
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static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
335 |
{ |
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if (d->term_got_escape) {
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d->term_got_escape = 0;
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if (ch == term_escape_char)
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goto send_char;
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switch(ch) {
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case '?': |
342 |
case 'h': |
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mux_print_help(chr); |
344 |
break;
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case 'x': |
346 |
{ |
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const char *term = "QEMU: Terminated\n\r"; |
348 |
chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
349 |
exit(0);
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break;
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} |
352 |
case 's': |
353 |
{ |
354 |
DriveInfo *dinfo; |
355 |
QTAILQ_FOREACH(dinfo, &drives, next) { |
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bdrv_commit(dinfo->bdrv); |
357 |
} |
358 |
} |
359 |
break;
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case 'b': |
361 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
362 |
break;
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case 'c': |
364 |
/* Switch to the next registered device */
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mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
366 |
d->focus++; |
367 |
if (d->focus >= d->mux_cnt)
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368 |
d->focus = 0;
|
369 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
370 |
break;
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371 |
case 't': |
372 |
d->timestamps = !d->timestamps; |
373 |
d->timestamps_start = -1;
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374 |
d->linestart = 0;
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375 |
break;
|
376 |
} |
377 |
} else if (ch == term_escape_char) { |
378 |
d->term_got_escape = 1;
|
379 |
} else {
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380 |
send_char:
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381 |
return 1; |
382 |
} |
383 |
return 0; |
384 |
} |
385 |
|
386 |
static void mux_chr_accept_input(CharDriverState *chr) |
387 |
{ |
388 |
MuxDriver *d = chr->opaque; |
389 |
int m = d->focus;
|
390 |
|
391 |
while (d->prod[m] != d->cons[m] &&
|
392 |
d->chr_can_read[m] && |
393 |
d->chr_can_read[m](d->ext_opaque[m])) { |
394 |
d->chr_read[m](d->ext_opaque[m], |
395 |
&d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
|
396 |
} |
397 |
} |
398 |
|
399 |
static int mux_chr_can_read(void *opaque) |
400 |
{ |
401 |
CharDriverState *chr = opaque; |
402 |
MuxDriver *d = chr->opaque; |
403 |
int m = d->focus;
|
404 |
|
405 |
if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
|
406 |
return 1; |
407 |
if (d->chr_can_read[m])
|
408 |
return d->chr_can_read[m](d->ext_opaque[m]);
|
409 |
return 0; |
410 |
} |
411 |
|
412 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
413 |
{ |
414 |
CharDriverState *chr = opaque; |
415 |
MuxDriver *d = chr->opaque; |
416 |
int m = d->focus;
|
417 |
int i;
|
418 |
|
419 |
mux_chr_accept_input (opaque); |
420 |
|
421 |
for(i = 0; i < size; i++) |
422 |
if (mux_proc_byte(chr, d, buf[i])) {
|
423 |
if (d->prod[m] == d->cons[m] &&
|
424 |
d->chr_can_read[m] && |
425 |
d->chr_can_read[m](d->ext_opaque[m])) |
426 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
427 |
else
|
428 |
d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i]; |
429 |
} |
430 |
} |
431 |
|
432 |
static void mux_chr_event(void *opaque, int event) |
433 |
{ |
434 |
CharDriverState *chr = opaque; |
435 |
MuxDriver *d = chr->opaque; |
436 |
int i;
|
437 |
|
438 |
/* Send the event to all registered listeners */
|
439 |
for (i = 0; i < d->mux_cnt; i++) |
440 |
mux_chr_send_event(d, i, event); |
441 |
} |
442 |
|
443 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
444 |
{ |
445 |
MuxDriver *d = chr->opaque; |
446 |
|
447 |
if (d->mux_cnt >= MAX_MUX) {
|
448 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
449 |
return;
|
450 |
} |
451 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
452 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
453 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
454 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
455 |
/* Fix up the real driver with mux routines */
|
456 |
if (d->mux_cnt == 0) { |
457 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
458 |
mux_chr_event, chr); |
459 |
} |
460 |
if (d->focus != -1) { |
461 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
462 |
} |
463 |
d->focus = d->mux_cnt; |
464 |
d->mux_cnt++; |
465 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
466 |
} |
467 |
|
468 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
469 |
{ |
470 |
CharDriverState *chr; |
471 |
MuxDriver *d; |
472 |
|
473 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
474 |
d = qemu_mallocz(sizeof(MuxDriver));
|
475 |
|
476 |
chr->opaque = d; |
477 |
d->drv = drv; |
478 |
d->focus = -1;
|
479 |
chr->chr_write = mux_chr_write; |
480 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
481 |
chr->chr_accept_input = mux_chr_accept_input; |
482 |
return chr;
|
483 |
} |
484 |
|
485 |
|
486 |
#ifdef _WIN32
|
487 |
int send_all(int fd, const void *buf, int len1) |
488 |
{ |
489 |
int ret, len;
|
490 |
|
491 |
len = len1; |
492 |
while (len > 0) { |
493 |
ret = send(fd, buf, len, 0);
|
494 |
if (ret < 0) { |
495 |
errno = WSAGetLastError(); |
496 |
if (errno != WSAEWOULDBLOCK) {
|
497 |
return -1; |
498 |
} |
499 |
} else if (ret == 0) { |
500 |
break;
|
501 |
} else {
|
502 |
buf += ret; |
503 |
len -= ret; |
504 |
} |
505 |
} |
506 |
return len1 - len;
|
507 |
} |
508 |
|
509 |
#else
|
510 |
|
511 |
static int unix_write(int fd, const uint8_t *buf, int len1) |
512 |
{ |
513 |
int ret, len;
|
514 |
|
515 |
len = len1; |
516 |
while (len > 0) { |
517 |
ret = write(fd, buf, len); |
518 |
if (ret < 0) { |
519 |
if (errno != EINTR && errno != EAGAIN)
|
520 |
return -1; |
521 |
} else if (ret == 0) { |
522 |
break;
|
523 |
} else {
|
524 |
buf += ret; |
525 |
len -= ret; |
526 |
} |
527 |
} |
528 |
return len1 - len;
|
529 |
} |
530 |
|
531 |
int send_all(int fd, const void *buf, int len1) |
532 |
{ |
533 |
return unix_write(fd, buf, len1);
|
534 |
} |
535 |
#endif /* !_WIN32 */ |
536 |
|
537 |
#ifndef _WIN32
|
538 |
|
539 |
typedef struct { |
540 |
int fd_in, fd_out;
|
541 |
int max_size;
|
542 |
} FDCharDriver; |
543 |
|
544 |
#define STDIO_MAX_CLIENTS 1 |
545 |
static int stdio_nb_clients = 0; |
546 |
|
547 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
548 |
{ |
549 |
FDCharDriver *s = chr->opaque; |
550 |
return send_all(s->fd_out, buf, len);
|
551 |
} |
552 |
|
553 |
static int fd_chr_read_poll(void *opaque) |
554 |
{ |
555 |
CharDriverState *chr = opaque; |
556 |
FDCharDriver *s = chr->opaque; |
557 |
|
558 |
s->max_size = qemu_chr_can_read(chr); |
559 |
return s->max_size;
|
560 |
} |
561 |
|
562 |
static void fd_chr_read(void *opaque) |
563 |
{ |
564 |
CharDriverState *chr = opaque; |
565 |
FDCharDriver *s = chr->opaque; |
566 |
int size, len;
|
567 |
uint8_t buf[1024];
|
568 |
|
569 |
len = sizeof(buf);
|
570 |
if (len > s->max_size)
|
571 |
len = s->max_size; |
572 |
if (len == 0) |
573 |
return;
|
574 |
size = read(s->fd_in, buf, len); |
575 |
if (size == 0) { |
576 |
/* FD has been closed. Remove it from the active list. */
|
577 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
578 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
579 |
return;
|
580 |
} |
581 |
if (size > 0) { |
582 |
qemu_chr_read(chr, buf, size); |
583 |
} |
584 |
} |
585 |
|
586 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
587 |
{ |
588 |
FDCharDriver *s = chr->opaque; |
589 |
|
590 |
if (s->fd_in >= 0) { |
591 |
if (display_type == DT_NOGRAPHIC && s->fd_in == 0) { |
592 |
} else {
|
593 |
qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, |
594 |
fd_chr_read, NULL, chr);
|
595 |
} |
596 |
} |
597 |
} |
598 |
|
599 |
static void fd_chr_close(struct CharDriverState *chr) |
600 |
{ |
601 |
FDCharDriver *s = chr->opaque; |
602 |
|
603 |
if (s->fd_in >= 0) { |
604 |
if (display_type == DT_NOGRAPHIC && s->fd_in == 0) { |
605 |
} else {
|
606 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
607 |
} |
608 |
} |
609 |
|
610 |
qemu_free(s); |
611 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
612 |
} |
613 |
|
614 |
/* open a character device to a unix fd */
|
615 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
616 |
{ |
617 |
CharDriverState *chr; |
618 |
FDCharDriver *s; |
619 |
|
620 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
621 |
s = qemu_mallocz(sizeof(FDCharDriver));
|
622 |
s->fd_in = fd_in; |
623 |
s->fd_out = fd_out; |
624 |
chr->opaque = s; |
625 |
chr->chr_write = fd_chr_write; |
626 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
627 |
chr->chr_close = fd_chr_close; |
628 |
|
629 |
qemu_chr_reset(chr); |
630 |
|
631 |
return chr;
|
632 |
} |
633 |
|
634 |
static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
|
635 |
{ |
636 |
int fd_out;
|
637 |
|
638 |
TFR(fd_out = open(qemu_opt_get(opts, "path"),
|
639 |
O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
640 |
if (fd_out < 0) |
641 |
return NULL; |
642 |
return qemu_chr_open_fd(-1, fd_out); |
643 |
} |
644 |
|
645 |
static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
|
646 |
{ |
647 |
int fd_in, fd_out;
|
648 |
char filename_in[256], filename_out[256]; |
649 |
const char *filename = qemu_opt_get(opts, "path"); |
650 |
|
651 |
if (filename == NULL) { |
652 |
fprintf(stderr, "chardev: pipe: no filename given\n");
|
653 |
return NULL; |
654 |
} |
655 |
|
656 |
snprintf(filename_in, 256, "%s.in", filename); |
657 |
snprintf(filename_out, 256, "%s.out", filename); |
658 |
TFR(fd_in = open(filename_in, O_RDWR | O_BINARY)); |
659 |
TFR(fd_out = open(filename_out, O_RDWR | O_BINARY)); |
660 |
if (fd_in < 0 || fd_out < 0) { |
661 |
if (fd_in >= 0) |
662 |
close(fd_in); |
663 |
if (fd_out >= 0) |
664 |
close(fd_out); |
665 |
TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY)); |
666 |
if (fd_in < 0) |
667 |
return NULL; |
668 |
} |
669 |
return qemu_chr_open_fd(fd_in, fd_out);
|
670 |
} |
671 |
|
672 |
|
673 |
/* for STDIO, we handle the case where several clients use it
|
674 |
(nographic mode) */
|
675 |
|
676 |
#define TERM_FIFO_MAX_SIZE 1 |
677 |
|
678 |
static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
|
679 |
static int term_fifo_size; |
680 |
|
681 |
static int stdio_read_poll(void *opaque) |
682 |
{ |
683 |
CharDriverState *chr = opaque; |
684 |
|
685 |
/* try to flush the queue if needed */
|
686 |
if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) { |
687 |
qemu_chr_read(chr, term_fifo, 1);
|
688 |
term_fifo_size = 0;
|
689 |
} |
690 |
/* see if we can absorb more chars */
|
691 |
if (term_fifo_size == 0) |
692 |
return 1; |
693 |
else
|
694 |
return 0; |
695 |
} |
696 |
|
697 |
static void stdio_read(void *opaque) |
698 |
{ |
699 |
int size;
|
700 |
uint8_t buf[1];
|
701 |
CharDriverState *chr = opaque; |
702 |
|
703 |
size = read(0, buf, 1); |
704 |
if (size == 0) { |
705 |
/* stdin has been closed. Remove it from the active list. */
|
706 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
707 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
708 |
return;
|
709 |
} |
710 |
if (size > 0) { |
711 |
if (qemu_chr_can_read(chr) > 0) { |
712 |
qemu_chr_read(chr, buf, 1);
|
713 |
} else if (term_fifo_size == 0) { |
714 |
term_fifo[term_fifo_size++] = buf[0];
|
715 |
} |
716 |
} |
717 |
} |
718 |
|
719 |
/* init terminal so that we can grab keys */
|
720 |
static struct termios oldtty; |
721 |
static int old_fd0_flags; |
722 |
static int term_atexit_done; |
723 |
|
724 |
static void term_exit(void) |
725 |
{ |
726 |
tcsetattr (0, TCSANOW, &oldtty);
|
727 |
fcntl(0, F_SETFL, old_fd0_flags);
|
728 |
} |
729 |
|
730 |
static void term_init(void) |
731 |
{ |
732 |
struct termios tty;
|
733 |
|
734 |
tcgetattr (0, &tty);
|
735 |
oldtty = tty; |
736 |
old_fd0_flags = fcntl(0, F_GETFL);
|
737 |
|
738 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
739 |
|INLCR|IGNCR|ICRNL|IXON); |
740 |
tty.c_oflag |= OPOST; |
741 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
742 |
/* if graphical mode, we allow Ctrl-C handling */
|
743 |
if (display_type == DT_NOGRAPHIC)
|
744 |
tty.c_lflag &= ~ISIG; |
745 |
tty.c_cflag &= ~(CSIZE|PARENB); |
746 |
tty.c_cflag |= CS8; |
747 |
tty.c_cc[VMIN] = 1;
|
748 |
tty.c_cc[VTIME] = 0;
|
749 |
|
750 |
tcsetattr (0, TCSANOW, &tty);
|
751 |
|
752 |
if (!term_atexit_done++)
|
753 |
atexit(term_exit); |
754 |
|
755 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
756 |
} |
757 |
|
758 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
759 |
{ |
760 |
term_exit(); |
761 |
stdio_nb_clients--; |
762 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
763 |
fd_chr_close(chr); |
764 |
} |
765 |
|
766 |
static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
|
767 |
{ |
768 |
CharDriverState *chr; |
769 |
|
770 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
|
771 |
return NULL; |
772 |
chr = qemu_chr_open_fd(0, 1); |
773 |
chr->chr_close = qemu_chr_close_stdio; |
774 |
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); |
775 |
stdio_nb_clients++; |
776 |
term_init(); |
777 |
|
778 |
return chr;
|
779 |
} |
780 |
|
781 |
#ifdef __sun__
|
782 |
/* Once Solaris has openpty(), this is going to be removed. */
|
783 |
static int openpty(int *amaster, int *aslave, char *name, |
784 |
struct termios *termp, struct winsize *winp) |
785 |
{ |
786 |
const char *slave; |
787 |
int mfd = -1, sfd = -1; |
788 |
|
789 |
*amaster = *aslave = -1;
|
790 |
|
791 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
792 |
if (mfd < 0) |
793 |
goto err;
|
794 |
|
795 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
796 |
goto err;
|
797 |
|
798 |
if ((slave = ptsname(mfd)) == NULL) |
799 |
goto err;
|
800 |
|
801 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
802 |
goto err;
|
803 |
|
804 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
805 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
806 |
goto err;
|
807 |
|
808 |
if (amaster)
|
809 |
*amaster = mfd; |
810 |
if (aslave)
|
811 |
*aslave = sfd; |
812 |
if (winp)
|
813 |
ioctl(sfd, TIOCSWINSZ, winp); |
814 |
|
815 |
return 0; |
816 |
|
817 |
err:
|
818 |
if (sfd != -1) |
819 |
close(sfd); |
820 |
close(mfd); |
821 |
return -1; |
822 |
} |
823 |
|
824 |
static void cfmakeraw (struct termios *termios_p) |
825 |
{ |
826 |
termios_p->c_iflag &= |
827 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
828 |
termios_p->c_oflag &= ~OPOST; |
829 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
830 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
831 |
termios_p->c_cflag |= CS8; |
832 |
|
833 |
termios_p->c_cc[VMIN] = 0;
|
834 |
termios_p->c_cc[VTIME] = 0;
|
835 |
} |
836 |
#endif
|
837 |
|
838 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
839 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) |
840 |
|
841 |
typedef struct { |
842 |
int fd;
|
843 |
int connected;
|
844 |
int polling;
|
845 |
int read_bytes;
|
846 |
QEMUTimer *timer; |
847 |
} PtyCharDriver; |
848 |
|
849 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
850 |
static void pty_chr_state(CharDriverState *chr, int connected); |
851 |
|
852 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
853 |
{ |
854 |
PtyCharDriver *s = chr->opaque; |
855 |
|
856 |
if (!s->connected) {
|
857 |
/* guest sends data, check for (re-)connect */
|
858 |
pty_chr_update_read_handler(chr); |
859 |
return 0; |
860 |
} |
861 |
return send_all(s->fd, buf, len);
|
862 |
} |
863 |
|
864 |
static int pty_chr_read_poll(void *opaque) |
865 |
{ |
866 |
CharDriverState *chr = opaque; |
867 |
PtyCharDriver *s = chr->opaque; |
868 |
|
869 |
s->read_bytes = qemu_chr_can_read(chr); |
870 |
return s->read_bytes;
|
871 |
} |
872 |
|
873 |
static void pty_chr_read(void *opaque) |
874 |
{ |
875 |
CharDriverState *chr = opaque; |
876 |
PtyCharDriver *s = chr->opaque; |
877 |
int size, len;
|
878 |
uint8_t buf[1024];
|
879 |
|
880 |
len = sizeof(buf);
|
881 |
if (len > s->read_bytes)
|
882 |
len = s->read_bytes; |
883 |
if (len == 0) |
884 |
return;
|
885 |
size = read(s->fd, buf, len); |
886 |
if ((size == -1 && errno == EIO) || |
887 |
(size == 0)) {
|
888 |
pty_chr_state(chr, 0);
|
889 |
return;
|
890 |
} |
891 |
if (size > 0) { |
892 |
pty_chr_state(chr, 1);
|
893 |
qemu_chr_read(chr, buf, size); |
894 |
} |
895 |
} |
896 |
|
897 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
898 |
{ |
899 |
PtyCharDriver *s = chr->opaque; |
900 |
|
901 |
qemu_set_fd_handler2(s->fd, pty_chr_read_poll, |
902 |
pty_chr_read, NULL, chr);
|
903 |
s->polling = 1;
|
904 |
/*
|
905 |
* Short timeout here: just need wait long enougth that qemu makes
|
906 |
* it through the poll loop once. When reconnected we want a
|
907 |
* short timeout so we notice it almost instantly. Otherwise
|
908 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
909 |
* timeout to the normal (much longer) poll interval before the
|
910 |
* timer triggers.
|
911 |
*/
|
912 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
|
913 |
} |
914 |
|
915 |
static void pty_chr_state(CharDriverState *chr, int connected) |
916 |
{ |
917 |
PtyCharDriver *s = chr->opaque; |
918 |
|
919 |
if (!connected) {
|
920 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
921 |
s->connected = 0;
|
922 |
s->polling = 0;
|
923 |
/* (re-)connect poll interval for idle guests: once per second.
|
924 |
* We check more frequently in case the guests sends data to
|
925 |
* the virtual device linked to our pty. */
|
926 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
|
927 |
} else {
|
928 |
if (!s->connected)
|
929 |
qemu_chr_reset(chr); |
930 |
s->connected = 1;
|
931 |
} |
932 |
} |
933 |
|
934 |
static void pty_chr_timer(void *opaque) |
935 |
{ |
936 |
struct CharDriverState *chr = opaque;
|
937 |
PtyCharDriver *s = chr->opaque; |
938 |
|
939 |
if (s->connected)
|
940 |
return;
|
941 |
if (s->polling) {
|
942 |
/* If we arrive here without polling being cleared due
|
943 |
* read returning -EIO, then we are (re-)connected */
|
944 |
pty_chr_state(chr, 1);
|
945 |
return;
|
946 |
} |
947 |
|
948 |
/* Next poll ... */
|
949 |
pty_chr_update_read_handler(chr); |
950 |
} |
951 |
|
952 |
static void pty_chr_close(struct CharDriverState *chr) |
953 |
{ |
954 |
PtyCharDriver *s = chr->opaque; |
955 |
|
956 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
957 |
close(s->fd); |
958 |
qemu_del_timer(s->timer); |
959 |
qemu_free_timer(s->timer); |
960 |
qemu_free(s); |
961 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
962 |
} |
963 |
|
964 |
static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
|
965 |
{ |
966 |
CharDriverState *chr; |
967 |
PtyCharDriver *s; |
968 |
struct termios tty;
|
969 |
int slave_fd, len;
|
970 |
#if defined(__OpenBSD__) || defined(__DragonFly__)
|
971 |
char pty_name[PATH_MAX];
|
972 |
#define q_ptsname(x) pty_name
|
973 |
#else
|
974 |
char *pty_name = NULL; |
975 |
#define q_ptsname(x) ptsname(x)
|
976 |
#endif
|
977 |
|
978 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
979 |
s = qemu_mallocz(sizeof(PtyCharDriver));
|
980 |
|
981 |
if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
982 |
return NULL; |
983 |
} |
984 |
|
985 |
/* Set raw attributes on the pty. */
|
986 |
tcgetattr(slave_fd, &tty); |
987 |
cfmakeraw(&tty); |
988 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
989 |
close(slave_fd); |
990 |
|
991 |
len = strlen(q_ptsname(s->fd)) + 5;
|
992 |
chr->filename = qemu_malloc(len); |
993 |
snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
|
994 |
qemu_opt_set(opts, "path", q_ptsname(s->fd));
|
995 |
fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
|
996 |
|
997 |
chr->opaque = s; |
998 |
chr->chr_write = pty_chr_write; |
999 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
1000 |
chr->chr_close = pty_chr_close; |
1001 |
|
1002 |
s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr); |
1003 |
|
1004 |
return chr;
|
1005 |
} |
1006 |
|
1007 |
static void tty_serial_init(int fd, int speed, |
1008 |
int parity, int data_bits, int stop_bits) |
1009 |
{ |
1010 |
struct termios tty;
|
1011 |
speed_t spd; |
1012 |
|
1013 |
#if 0
|
1014 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
1015 |
speed, parity, data_bits, stop_bits);
|
1016 |
#endif
|
1017 |
tcgetattr (fd, &tty); |
1018 |
|
1019 |
#define MARGIN 1.1 |
1020 |
if (speed <= 50 * MARGIN) |
1021 |
spd = B50; |
1022 |
else if (speed <= 75 * MARGIN) |
1023 |
spd = B75; |
1024 |
else if (speed <= 300 * MARGIN) |
1025 |
spd = B300; |
1026 |
else if (speed <= 600 * MARGIN) |
1027 |
spd = B600; |
1028 |
else if (speed <= 1200 * MARGIN) |
1029 |
spd = B1200; |
1030 |
else if (speed <= 2400 * MARGIN) |
1031 |
spd = B2400; |
1032 |
else if (speed <= 4800 * MARGIN) |
1033 |
spd = B4800; |
1034 |
else if (speed <= 9600 * MARGIN) |
1035 |
spd = B9600; |
1036 |
else if (speed <= 19200 * MARGIN) |
1037 |
spd = B19200; |
1038 |
else if (speed <= 38400 * MARGIN) |
1039 |
spd = B38400; |
1040 |
else if (speed <= 57600 * MARGIN) |
1041 |
spd = B57600; |
1042 |
else if (speed <= 115200 * MARGIN) |
1043 |
spd = B115200; |
1044 |
else
|
1045 |
spd = B115200; |
1046 |
|
1047 |
cfsetispeed(&tty, spd); |
1048 |
cfsetospeed(&tty, spd); |
1049 |
|
1050 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
1051 |
|INLCR|IGNCR|ICRNL|IXON); |
1052 |
tty.c_oflag |= OPOST; |
1053 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
1054 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
1055 |
switch(data_bits) {
|
1056 |
default:
|
1057 |
case 8: |
1058 |
tty.c_cflag |= CS8; |
1059 |
break;
|
1060 |
case 7: |
1061 |
tty.c_cflag |= CS7; |
1062 |
break;
|
1063 |
case 6: |
1064 |
tty.c_cflag |= CS6; |
1065 |
break;
|
1066 |
case 5: |
1067 |
tty.c_cflag |= CS5; |
1068 |
break;
|
1069 |
} |
1070 |
switch(parity) {
|
1071 |
default:
|
1072 |
case 'N': |
1073 |
break;
|
1074 |
case 'E': |
1075 |
tty.c_cflag |= PARENB; |
1076 |
break;
|
1077 |
case 'O': |
1078 |
tty.c_cflag |= PARENB | PARODD; |
1079 |
break;
|
1080 |
} |
1081 |
if (stop_bits == 2) |
1082 |
tty.c_cflag |= CSTOPB; |
1083 |
|
1084 |
tcsetattr (fd, TCSANOW, &tty); |
1085 |
} |
1086 |
|
1087 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
1088 |
{ |
1089 |
FDCharDriver *s = chr->opaque; |
1090 |
|
1091 |
switch(cmd) {
|
1092 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
1093 |
{ |
1094 |
QEMUSerialSetParams *ssp = arg; |
1095 |
tty_serial_init(s->fd_in, ssp->speed, ssp->parity, |
1096 |
ssp->data_bits, ssp->stop_bits); |
1097 |
} |
1098 |
break;
|
1099 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
1100 |
{ |
1101 |
int enable = *(int *)arg; |
1102 |
if (enable)
|
1103 |
tcsendbreak(s->fd_in, 1);
|
1104 |
} |
1105 |
break;
|
1106 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
1107 |
{ |
1108 |
int sarg = 0; |
1109 |
int *targ = (int *)arg; |
1110 |
ioctl(s->fd_in, TIOCMGET, &sarg); |
1111 |
*targ = 0;
|
1112 |
if (sarg & TIOCM_CTS)
|
1113 |
*targ |= CHR_TIOCM_CTS; |
1114 |
if (sarg & TIOCM_CAR)
|
1115 |
*targ |= CHR_TIOCM_CAR; |
1116 |
if (sarg & TIOCM_DSR)
|
1117 |
*targ |= CHR_TIOCM_DSR; |
1118 |
if (sarg & TIOCM_RI)
|
1119 |
*targ |= CHR_TIOCM_RI; |
1120 |
if (sarg & TIOCM_DTR)
|
1121 |
*targ |= CHR_TIOCM_DTR; |
1122 |
if (sarg & TIOCM_RTS)
|
1123 |
*targ |= CHR_TIOCM_RTS; |
1124 |
} |
1125 |
break;
|
1126 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
1127 |
{ |
1128 |
int sarg = *(int *)arg; |
1129 |
int targ = 0; |
1130 |
ioctl(s->fd_in, TIOCMGET, &targ); |
1131 |
targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR |
1132 |
| CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); |
1133 |
if (sarg & CHR_TIOCM_CTS)
|
1134 |
targ |= TIOCM_CTS; |
1135 |
if (sarg & CHR_TIOCM_CAR)
|
1136 |
targ |= TIOCM_CAR; |
1137 |
if (sarg & CHR_TIOCM_DSR)
|
1138 |
targ |= TIOCM_DSR; |
1139 |
if (sarg & CHR_TIOCM_RI)
|
1140 |
targ |= TIOCM_RI; |
1141 |
if (sarg & CHR_TIOCM_DTR)
|
1142 |
targ |= TIOCM_DTR; |
1143 |
if (sarg & CHR_TIOCM_RTS)
|
1144 |
targ |= TIOCM_RTS; |
1145 |
ioctl(s->fd_in, TIOCMSET, &targ); |
1146 |
} |
1147 |
break;
|
1148 |
default:
|
1149 |
return -ENOTSUP;
|
1150 |
} |
1151 |
return 0; |
1152 |
} |
1153 |
|
1154 |
static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
|
1155 |
{ |
1156 |
const char *filename = qemu_opt_get(opts, "path"); |
1157 |
CharDriverState *chr; |
1158 |
int fd;
|
1159 |
|
1160 |
TFR(fd = open(filename, O_RDWR | O_NONBLOCK)); |
1161 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
1162 |
chr = qemu_chr_open_fd(fd, fd); |
1163 |
if (!chr) {
|
1164 |
close(fd); |
1165 |
return NULL; |
1166 |
} |
1167 |
chr->chr_ioctl = tty_serial_ioctl; |
1168 |
qemu_chr_reset(chr); |
1169 |
return chr;
|
1170 |
} |
1171 |
#else /* ! __linux__ && ! __sun__ */ |
1172 |
static CharDriverState *qemu_chr_open_pty(void) |
1173 |
{ |
1174 |
return NULL; |
1175 |
} |
1176 |
#endif /* __linux__ || __sun__ */ |
1177 |
|
1178 |
#if defined(__linux__)
|
1179 |
typedef struct { |
1180 |
int fd;
|
1181 |
int mode;
|
1182 |
} ParallelCharDriver; |
1183 |
|
1184 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
1185 |
{ |
1186 |
if (s->mode != mode) {
|
1187 |
int m = mode;
|
1188 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
1189 |
return 0; |
1190 |
s->mode = mode; |
1191 |
} |
1192 |
return 1; |
1193 |
} |
1194 |
|
1195 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1196 |
{ |
1197 |
ParallelCharDriver *drv = chr->opaque; |
1198 |
int fd = drv->fd;
|
1199 |
uint8_t b; |
1200 |
|
1201 |
switch(cmd) {
|
1202 |
case CHR_IOCTL_PP_READ_DATA:
|
1203 |
if (ioctl(fd, PPRDATA, &b) < 0) |
1204 |
return -ENOTSUP;
|
1205 |
*(uint8_t *)arg = b; |
1206 |
break;
|
1207 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1208 |
b = *(uint8_t *)arg; |
1209 |
if (ioctl(fd, PPWDATA, &b) < 0) |
1210 |
return -ENOTSUP;
|
1211 |
break;
|
1212 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1213 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
1214 |
return -ENOTSUP;
|
1215 |
/* Linux gives only the lowest bits, and no way to know data
|
1216 |
direction! For better compatibility set the fixed upper
|
1217 |
bits. */
|
1218 |
*(uint8_t *)arg = b | 0xc0;
|
1219 |
break;
|
1220 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1221 |
b = *(uint8_t *)arg; |
1222 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
1223 |
return -ENOTSUP;
|
1224 |
break;
|
1225 |
case CHR_IOCTL_PP_READ_STATUS:
|
1226 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
1227 |
return -ENOTSUP;
|
1228 |
*(uint8_t *)arg = b; |
1229 |
break;
|
1230 |
case CHR_IOCTL_PP_DATA_DIR:
|
1231 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
1232 |
return -ENOTSUP;
|
1233 |
break;
|
1234 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
1235 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1236 |
struct ParallelIOArg *parg = arg;
|
1237 |
int n = read(fd, parg->buffer, parg->count);
|
1238 |
if (n != parg->count) {
|
1239 |
return -EIO;
|
1240 |
} |
1241 |
} |
1242 |
break;
|
1243 |
case CHR_IOCTL_PP_EPP_READ:
|
1244 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1245 |
struct ParallelIOArg *parg = arg;
|
1246 |
int n = read(fd, parg->buffer, parg->count);
|
1247 |
if (n != parg->count) {
|
1248 |
return -EIO;
|
1249 |
} |
1250 |
} |
1251 |
break;
|
1252 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
1253 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1254 |
struct ParallelIOArg *parg = arg;
|
1255 |
int n = write(fd, parg->buffer, parg->count);
|
1256 |
if (n != parg->count) {
|
1257 |
return -EIO;
|
1258 |
} |
1259 |
} |
1260 |
break;
|
1261 |
case CHR_IOCTL_PP_EPP_WRITE:
|
1262 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1263 |
struct ParallelIOArg *parg = arg;
|
1264 |
int n = write(fd, parg->buffer, parg->count);
|
1265 |
if (n != parg->count) {
|
1266 |
return -EIO;
|
1267 |
} |
1268 |
} |
1269 |
break;
|
1270 |
default:
|
1271 |
return -ENOTSUP;
|
1272 |
} |
1273 |
return 0; |
1274 |
} |
1275 |
|
1276 |
static void pp_close(CharDriverState *chr) |
1277 |
{ |
1278 |
ParallelCharDriver *drv = chr->opaque; |
1279 |
int fd = drv->fd;
|
1280 |
|
1281 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
1282 |
ioctl(fd, PPRELEASE); |
1283 |
close(fd); |
1284 |
qemu_free(drv); |
1285 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
1286 |
} |
1287 |
|
1288 |
static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
|
1289 |
{ |
1290 |
const char *filename = qemu_opt_get(opts, "path"); |
1291 |
CharDriverState *chr; |
1292 |
ParallelCharDriver *drv; |
1293 |
int fd;
|
1294 |
|
1295 |
TFR(fd = open(filename, O_RDWR)); |
1296 |
if (fd < 0) |
1297 |
return NULL; |
1298 |
|
1299 |
if (ioctl(fd, PPCLAIM) < 0) { |
1300 |
close(fd); |
1301 |
return NULL; |
1302 |
} |
1303 |
|
1304 |
drv = qemu_mallocz(sizeof(ParallelCharDriver));
|
1305 |
drv->fd = fd; |
1306 |
drv->mode = IEEE1284_MODE_COMPAT; |
1307 |
|
1308 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1309 |
chr->chr_write = null_chr_write; |
1310 |
chr->chr_ioctl = pp_ioctl; |
1311 |
chr->chr_close = pp_close; |
1312 |
chr->opaque = drv; |
1313 |
|
1314 |
qemu_chr_reset(chr); |
1315 |
|
1316 |
return chr;
|
1317 |
} |
1318 |
#endif /* __linux__ */ |
1319 |
|
1320 |
#if defined(__FreeBSD__) || defined(__DragonFly__)
|
1321 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1322 |
{ |
1323 |
int fd = (int)chr->opaque; |
1324 |
uint8_t b; |
1325 |
|
1326 |
switch(cmd) {
|
1327 |
case CHR_IOCTL_PP_READ_DATA:
|
1328 |
if (ioctl(fd, PPIGDATA, &b) < 0) |
1329 |
return -ENOTSUP;
|
1330 |
*(uint8_t *)arg = b; |
1331 |
break;
|
1332 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1333 |
b = *(uint8_t *)arg; |
1334 |
if (ioctl(fd, PPISDATA, &b) < 0) |
1335 |
return -ENOTSUP;
|
1336 |
break;
|
1337 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1338 |
if (ioctl(fd, PPIGCTRL, &b) < 0) |
1339 |
return -ENOTSUP;
|
1340 |
*(uint8_t *)arg = b; |
1341 |
break;
|
1342 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1343 |
b = *(uint8_t *)arg; |
1344 |
if (ioctl(fd, PPISCTRL, &b) < 0) |
1345 |
return -ENOTSUP;
|
1346 |
break;
|
1347 |
case CHR_IOCTL_PP_READ_STATUS:
|
1348 |
if (ioctl(fd, PPIGSTATUS, &b) < 0) |
1349 |
return -ENOTSUP;
|
1350 |
*(uint8_t *)arg = b; |
1351 |
break;
|
1352 |
default:
|
1353 |
return -ENOTSUP;
|
1354 |
} |
1355 |
return 0; |
1356 |
} |
1357 |
|
1358 |
static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
|
1359 |
{ |
1360 |
const char *filename = qemu_opt_get(opts, "path"); |
1361 |
CharDriverState *chr; |
1362 |
int fd;
|
1363 |
|
1364 |
fd = open(filename, O_RDWR); |
1365 |
if (fd < 0) |
1366 |
return NULL; |
1367 |
|
1368 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1369 |
chr->opaque = (void *)fd;
|
1370 |
chr->chr_write = null_chr_write; |
1371 |
chr->chr_ioctl = pp_ioctl; |
1372 |
return chr;
|
1373 |
} |
1374 |
#endif
|
1375 |
|
1376 |
#else /* _WIN32 */ |
1377 |
|
1378 |
typedef struct { |
1379 |
int max_size;
|
1380 |
HANDLE hcom, hrecv, hsend; |
1381 |
OVERLAPPED orecv, osend; |
1382 |
BOOL fpipe; |
1383 |
DWORD len; |
1384 |
} WinCharState; |
1385 |
|
1386 |
#define NSENDBUF 2048 |
1387 |
#define NRECVBUF 2048 |
1388 |
#define MAXCONNECT 1 |
1389 |
#define NTIMEOUT 5000 |
1390 |
|
1391 |
static int win_chr_poll(void *opaque); |
1392 |
static int win_chr_pipe_poll(void *opaque); |
1393 |
|
1394 |
static void win_chr_close(CharDriverState *chr) |
1395 |
{ |
1396 |
WinCharState *s = chr->opaque; |
1397 |
|
1398 |
if (s->hsend) {
|
1399 |
CloseHandle(s->hsend); |
1400 |
s->hsend = NULL;
|
1401 |
} |
1402 |
if (s->hrecv) {
|
1403 |
CloseHandle(s->hrecv); |
1404 |
s->hrecv = NULL;
|
1405 |
} |
1406 |
if (s->hcom) {
|
1407 |
CloseHandle(s->hcom); |
1408 |
s->hcom = NULL;
|
1409 |
} |
1410 |
if (s->fpipe)
|
1411 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
1412 |
else
|
1413 |
qemu_del_polling_cb(win_chr_poll, chr); |
1414 |
|
1415 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
1416 |
} |
1417 |
|
1418 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
1419 |
{ |
1420 |
WinCharState *s = chr->opaque; |
1421 |
COMMCONFIG comcfg; |
1422 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; |
1423 |
COMSTAT comstat; |
1424 |
DWORD size; |
1425 |
DWORD err; |
1426 |
|
1427 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1428 |
if (!s->hsend) {
|
1429 |
fprintf(stderr, "Failed CreateEvent\n");
|
1430 |
goto fail;
|
1431 |
} |
1432 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1433 |
if (!s->hrecv) {
|
1434 |
fprintf(stderr, "Failed CreateEvent\n");
|
1435 |
goto fail;
|
1436 |
} |
1437 |
|
1438 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
1439 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
1440 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1441 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
1442 |
s->hcom = NULL;
|
1443 |
goto fail;
|
1444 |
} |
1445 |
|
1446 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
1447 |
fprintf(stderr, "Failed SetupComm\n");
|
1448 |
goto fail;
|
1449 |
} |
1450 |
|
1451 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
1452 |
size = sizeof(COMMCONFIG);
|
1453 |
GetDefaultCommConfig(filename, &comcfg, &size); |
1454 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
1455 |
CommConfigDialog(filename, NULL, &comcfg);
|
1456 |
|
1457 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
1458 |
fprintf(stderr, "Failed SetCommState\n");
|
1459 |
goto fail;
|
1460 |
} |
1461 |
|
1462 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
1463 |
fprintf(stderr, "Failed SetCommMask\n");
|
1464 |
goto fail;
|
1465 |
} |
1466 |
|
1467 |
cto.ReadIntervalTimeout = MAXDWORD; |
1468 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
1469 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
1470 |
goto fail;
|
1471 |
} |
1472 |
|
1473 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
1474 |
fprintf(stderr, "Failed ClearCommError\n");
|
1475 |
goto fail;
|
1476 |
} |
1477 |
qemu_add_polling_cb(win_chr_poll, chr); |
1478 |
return 0; |
1479 |
|
1480 |
fail:
|
1481 |
win_chr_close(chr); |
1482 |
return -1; |
1483 |
} |
1484 |
|
1485 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
1486 |
{ |
1487 |
WinCharState *s = chr->opaque; |
1488 |
DWORD len, ret, size, err; |
1489 |
|
1490 |
len = len1; |
1491 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
1492 |
s->osend.hEvent = s->hsend; |
1493 |
while (len > 0) { |
1494 |
if (s->hsend)
|
1495 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
1496 |
else
|
1497 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
1498 |
if (!ret) {
|
1499 |
err = GetLastError(); |
1500 |
if (err == ERROR_IO_PENDING) {
|
1501 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
1502 |
if (ret) {
|
1503 |
buf += size; |
1504 |
len -= size; |
1505 |
} else {
|
1506 |
break;
|
1507 |
} |
1508 |
} else {
|
1509 |
break;
|
1510 |
} |
1511 |
} else {
|
1512 |
buf += size; |
1513 |
len -= size; |
1514 |
} |
1515 |
} |
1516 |
return len1 - len;
|
1517 |
} |
1518 |
|
1519 |
static int win_chr_read_poll(CharDriverState *chr) |
1520 |
{ |
1521 |
WinCharState *s = chr->opaque; |
1522 |
|
1523 |
s->max_size = qemu_chr_can_read(chr); |
1524 |
return s->max_size;
|
1525 |
} |
1526 |
|
1527 |
static void win_chr_readfile(CharDriverState *chr) |
1528 |
{ |
1529 |
WinCharState *s = chr->opaque; |
1530 |
int ret, err;
|
1531 |
uint8_t buf[1024];
|
1532 |
DWORD size; |
1533 |
|
1534 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
1535 |
s->orecv.hEvent = s->hrecv; |
1536 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
1537 |
if (!ret) {
|
1538 |
err = GetLastError(); |
1539 |
if (err == ERROR_IO_PENDING) {
|
1540 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
1541 |
} |
1542 |
} |
1543 |
|
1544 |
if (size > 0) { |
1545 |
qemu_chr_read(chr, buf, size); |
1546 |
} |
1547 |
} |
1548 |
|
1549 |
static void win_chr_read(CharDriverState *chr) |
1550 |
{ |
1551 |
WinCharState *s = chr->opaque; |
1552 |
|
1553 |
if (s->len > s->max_size)
|
1554 |
s->len = s->max_size; |
1555 |
if (s->len == 0) |
1556 |
return;
|
1557 |
|
1558 |
win_chr_readfile(chr); |
1559 |
} |
1560 |
|
1561 |
static int win_chr_poll(void *opaque) |
1562 |
{ |
1563 |
CharDriverState *chr = opaque; |
1564 |
WinCharState *s = chr->opaque; |
1565 |
COMSTAT status; |
1566 |
DWORD comerr; |
1567 |
|
1568 |
ClearCommError(s->hcom, &comerr, &status); |
1569 |
if (status.cbInQue > 0) { |
1570 |
s->len = status.cbInQue; |
1571 |
win_chr_read_poll(chr); |
1572 |
win_chr_read(chr); |
1573 |
return 1; |
1574 |
} |
1575 |
return 0; |
1576 |
} |
1577 |
|
1578 |
static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
|
1579 |
{ |
1580 |
const char *filename = qemu_opt_get(opts, "path"); |
1581 |
CharDriverState *chr; |
1582 |
WinCharState *s; |
1583 |
|
1584 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1585 |
s = qemu_mallocz(sizeof(WinCharState));
|
1586 |
chr->opaque = s; |
1587 |
chr->chr_write = win_chr_write; |
1588 |
chr->chr_close = win_chr_close; |
1589 |
|
1590 |
if (win_chr_init(chr, filename) < 0) { |
1591 |
free(s); |
1592 |
free(chr); |
1593 |
return NULL; |
1594 |
} |
1595 |
qemu_chr_reset(chr); |
1596 |
return chr;
|
1597 |
} |
1598 |
|
1599 |
static int win_chr_pipe_poll(void *opaque) |
1600 |
{ |
1601 |
CharDriverState *chr = opaque; |
1602 |
WinCharState *s = chr->opaque; |
1603 |
DWORD size; |
1604 |
|
1605 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
1606 |
if (size > 0) { |
1607 |
s->len = size; |
1608 |
win_chr_read_poll(chr); |
1609 |
win_chr_read(chr); |
1610 |
return 1; |
1611 |
} |
1612 |
return 0; |
1613 |
} |
1614 |
|
1615 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
1616 |
{ |
1617 |
WinCharState *s = chr->opaque; |
1618 |
OVERLAPPED ov; |
1619 |
int ret;
|
1620 |
DWORD size; |
1621 |
char openname[256]; |
1622 |
|
1623 |
s->fpipe = TRUE; |
1624 |
|
1625 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1626 |
if (!s->hsend) {
|
1627 |
fprintf(stderr, "Failed CreateEvent\n");
|
1628 |
goto fail;
|
1629 |
} |
1630 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1631 |
if (!s->hrecv) {
|
1632 |
fprintf(stderr, "Failed CreateEvent\n");
|
1633 |
goto fail;
|
1634 |
} |
1635 |
|
1636 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
1637 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
1638 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
1639 |
PIPE_WAIT, |
1640 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
1641 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1642 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
1643 |
s->hcom = NULL;
|
1644 |
goto fail;
|
1645 |
} |
1646 |
|
1647 |
ZeroMemory(&ov, sizeof(ov));
|
1648 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
1649 |
ret = ConnectNamedPipe(s->hcom, &ov); |
1650 |
if (ret) {
|
1651 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
1652 |
goto fail;
|
1653 |
} |
1654 |
|
1655 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
1656 |
if (!ret) {
|
1657 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
1658 |
if (ov.hEvent) {
|
1659 |
CloseHandle(ov.hEvent); |
1660 |
ov.hEvent = NULL;
|
1661 |
} |
1662 |
goto fail;
|
1663 |
} |
1664 |
|
1665 |
if (ov.hEvent) {
|
1666 |
CloseHandle(ov.hEvent); |
1667 |
ov.hEvent = NULL;
|
1668 |
} |
1669 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
1670 |
return 0; |
1671 |
|
1672 |
fail:
|
1673 |
win_chr_close(chr); |
1674 |
return -1; |
1675 |
} |
1676 |
|
1677 |
|
1678 |
static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
|
1679 |
{ |
1680 |
const char *filename = qemu_opt_get(opts, "path"); |
1681 |
CharDriverState *chr; |
1682 |
WinCharState *s; |
1683 |
|
1684 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1685 |
s = qemu_mallocz(sizeof(WinCharState));
|
1686 |
chr->opaque = s; |
1687 |
chr->chr_write = win_chr_write; |
1688 |
chr->chr_close = win_chr_close; |
1689 |
|
1690 |
if (win_chr_pipe_init(chr, filename) < 0) { |
1691 |
free(s); |
1692 |
free(chr); |
1693 |
return NULL; |
1694 |
} |
1695 |
qemu_chr_reset(chr); |
1696 |
return chr;
|
1697 |
} |
1698 |
|
1699 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
1700 |
{ |
1701 |
CharDriverState *chr; |
1702 |
WinCharState *s; |
1703 |
|
1704 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1705 |
s = qemu_mallocz(sizeof(WinCharState));
|
1706 |
s->hcom = fd_out; |
1707 |
chr->opaque = s; |
1708 |
chr->chr_write = win_chr_write; |
1709 |
qemu_chr_reset(chr); |
1710 |
return chr;
|
1711 |
} |
1712 |
|
1713 |
static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
|
1714 |
{ |
1715 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
1716 |
} |
1717 |
|
1718 |
static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
|
1719 |
{ |
1720 |
const char *file_out = qemu_opt_get(opts, "path"); |
1721 |
HANDLE fd_out; |
1722 |
|
1723 |
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
1724 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
1725 |
if (fd_out == INVALID_HANDLE_VALUE)
|
1726 |
return NULL; |
1727 |
|
1728 |
return qemu_chr_open_win_file(fd_out);
|
1729 |
} |
1730 |
#endif /* !_WIN32 */ |
1731 |
|
1732 |
/***********************************************************/
|
1733 |
/* UDP Net console */
|
1734 |
|
1735 |
typedef struct { |
1736 |
int fd;
|
1737 |
uint8_t buf[1024];
|
1738 |
int bufcnt;
|
1739 |
int bufptr;
|
1740 |
int max_size;
|
1741 |
} NetCharDriver; |
1742 |
|
1743 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
1744 |
{ |
1745 |
NetCharDriver *s = chr->opaque; |
1746 |
|
1747 |
return send(s->fd, (const void *)buf, len, 0); |
1748 |
} |
1749 |
|
1750 |
static int udp_chr_read_poll(void *opaque) |
1751 |
{ |
1752 |
CharDriverState *chr = opaque; |
1753 |
NetCharDriver *s = chr->opaque; |
1754 |
|
1755 |
s->max_size = qemu_chr_can_read(chr); |
1756 |
|
1757 |
/* If there were any stray characters in the queue process them
|
1758 |
* first
|
1759 |
*/
|
1760 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
1761 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
1762 |
s->bufptr++; |
1763 |
s->max_size = qemu_chr_can_read(chr); |
1764 |
} |
1765 |
return s->max_size;
|
1766 |
} |
1767 |
|
1768 |
static void udp_chr_read(void *opaque) |
1769 |
{ |
1770 |
CharDriverState *chr = opaque; |
1771 |
NetCharDriver *s = chr->opaque; |
1772 |
|
1773 |
if (s->max_size == 0) |
1774 |
return;
|
1775 |
s->bufcnt = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0); |
1776 |
s->bufptr = s->bufcnt; |
1777 |
if (s->bufcnt <= 0) |
1778 |
return;
|
1779 |
|
1780 |
s->bufptr = 0;
|
1781 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
1782 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
1783 |
s->bufptr++; |
1784 |
s->max_size = qemu_chr_can_read(chr); |
1785 |
} |
1786 |
} |
1787 |
|
1788 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
1789 |
{ |
1790 |
NetCharDriver *s = chr->opaque; |
1791 |
|
1792 |
if (s->fd >= 0) { |
1793 |
qemu_set_fd_handler2(s->fd, udp_chr_read_poll, |
1794 |
udp_chr_read, NULL, chr);
|
1795 |
} |
1796 |
} |
1797 |
|
1798 |
static void udp_chr_close(CharDriverState *chr) |
1799 |
{ |
1800 |
NetCharDriver *s = chr->opaque; |
1801 |
if (s->fd >= 0) { |
1802 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1803 |
closesocket(s->fd); |
1804 |
} |
1805 |
qemu_free(s); |
1806 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
1807 |
} |
1808 |
|
1809 |
static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
|
1810 |
{ |
1811 |
CharDriverState *chr = NULL;
|
1812 |
NetCharDriver *s = NULL;
|
1813 |
int fd = -1; |
1814 |
|
1815 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1816 |
s = qemu_mallocz(sizeof(NetCharDriver));
|
1817 |
|
1818 |
fd = inet_dgram_opts(opts); |
1819 |
if (fd < 0) { |
1820 |
fprintf(stderr, "inet_dgram_opts failed\n");
|
1821 |
goto return_err;
|
1822 |
} |
1823 |
|
1824 |
s->fd = fd; |
1825 |
s->bufcnt = 0;
|
1826 |
s->bufptr = 0;
|
1827 |
chr->opaque = s; |
1828 |
chr->chr_write = udp_chr_write; |
1829 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
1830 |
chr->chr_close = udp_chr_close; |
1831 |
return chr;
|
1832 |
|
1833 |
return_err:
|
1834 |
if (chr)
|
1835 |
free(chr); |
1836 |
if (s)
|
1837 |
free(s); |
1838 |
if (fd >= 0) |
1839 |
closesocket(fd); |
1840 |
return NULL; |
1841 |
} |
1842 |
|
1843 |
/***********************************************************/
|
1844 |
/* TCP Net console */
|
1845 |
|
1846 |
typedef struct { |
1847 |
int fd, listen_fd;
|
1848 |
int connected;
|
1849 |
int max_size;
|
1850 |
int do_telnetopt;
|
1851 |
int do_nodelay;
|
1852 |
int is_unix;
|
1853 |
int msgfd;
|
1854 |
} TCPCharDriver; |
1855 |
|
1856 |
static void tcp_chr_accept(void *opaque); |
1857 |
|
1858 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
1859 |
{ |
1860 |
TCPCharDriver *s = chr->opaque; |
1861 |
if (s->connected) {
|
1862 |
return send_all(s->fd, buf, len);
|
1863 |
} else {
|
1864 |
/* XXX: indicate an error ? */
|
1865 |
return len;
|
1866 |
} |
1867 |
} |
1868 |
|
1869 |
static int tcp_chr_read_poll(void *opaque) |
1870 |
{ |
1871 |
CharDriverState *chr = opaque; |
1872 |
TCPCharDriver *s = chr->opaque; |
1873 |
if (!s->connected)
|
1874 |
return 0; |
1875 |
s->max_size = qemu_chr_can_read(chr); |
1876 |
return s->max_size;
|
1877 |
} |
1878 |
|
1879 |
#define IAC 255 |
1880 |
#define IAC_BREAK 243 |
1881 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
1882 |
TCPCharDriver *s, |
1883 |
uint8_t *buf, int *size)
|
1884 |
{ |
1885 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
1886 |
* char mode with no echo. All IAC options will be removed from
|
1887 |
* the buf and the do_telnetopt variable will be used to track the
|
1888 |
* state of the width of the IAC information.
|
1889 |
*
|
1890 |
* IAC commands come in sets of 3 bytes with the exception of the
|
1891 |
* "IAC BREAK" command and the double IAC.
|
1892 |
*/
|
1893 |
|
1894 |
int i;
|
1895 |
int j = 0; |
1896 |
|
1897 |
for (i = 0; i < *size; i++) { |
1898 |
if (s->do_telnetopt > 1) { |
1899 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
1900 |
/* Double IAC means send an IAC */
|
1901 |
if (j != i)
|
1902 |
buf[j] = buf[i]; |
1903 |
j++; |
1904 |
s->do_telnetopt = 1;
|
1905 |
} else {
|
1906 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
1907 |
/* Handle IAC break commands by sending a serial break */
|
1908 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
1909 |
s->do_telnetopt++; |
1910 |
} |
1911 |
s->do_telnetopt++; |
1912 |
} |
1913 |
if (s->do_telnetopt >= 4) { |
1914 |
s->do_telnetopt = 1;
|
1915 |
} |
1916 |
} else {
|
1917 |
if ((unsigned char)buf[i] == IAC) { |
1918 |
s->do_telnetopt = 2;
|
1919 |
} else {
|
1920 |
if (j != i)
|
1921 |
buf[j] = buf[i]; |
1922 |
j++; |
1923 |
} |
1924 |
} |
1925 |
} |
1926 |
*size = j; |
1927 |
} |
1928 |
|
1929 |
static int tcp_get_msgfd(CharDriverState *chr) |
1930 |
{ |
1931 |
TCPCharDriver *s = chr->opaque; |
1932 |
|
1933 |
return s->msgfd;
|
1934 |
} |
1935 |
|
1936 |
#ifndef _WIN32
|
1937 |
static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg) |
1938 |
{ |
1939 |
TCPCharDriver *s = chr->opaque; |
1940 |
struct cmsghdr *cmsg;
|
1941 |
|
1942 |
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
|
1943 |
int fd;
|
1944 |
|
1945 |
if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) || |
1946 |
cmsg->cmsg_level != SOL_SOCKET || |
1947 |
cmsg->cmsg_type != SCM_RIGHTS) |
1948 |
continue;
|
1949 |
|
1950 |
fd = *((int *)CMSG_DATA(cmsg));
|
1951 |
if (fd < 0) |
1952 |
continue;
|
1953 |
|
1954 |
if (s->msgfd != -1) |
1955 |
close(s->msgfd); |
1956 |
s->msgfd = fd; |
1957 |
} |
1958 |
} |
1959 |
|
1960 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
1961 |
{ |
1962 |
TCPCharDriver *s = chr->opaque; |
1963 |
struct msghdr msg = { NULL, }; |
1964 |
struct iovec iov[1]; |
1965 |
union {
|
1966 |
struct cmsghdr cmsg;
|
1967 |
char control[CMSG_SPACE(sizeof(int))]; |
1968 |
} msg_control; |
1969 |
ssize_t ret; |
1970 |
|
1971 |
iov[0].iov_base = buf;
|
1972 |
iov[0].iov_len = len;
|
1973 |
|
1974 |
msg.msg_iov = iov; |
1975 |
msg.msg_iovlen = 1;
|
1976 |
msg.msg_control = &msg_control; |
1977 |
msg.msg_controllen = sizeof(msg_control);
|
1978 |
|
1979 |
ret = recvmsg(s->fd, &msg, 0);
|
1980 |
if (ret > 0 && s->is_unix) |
1981 |
unix_process_msgfd(chr, &msg); |
1982 |
|
1983 |
return ret;
|
1984 |
} |
1985 |
#else
|
1986 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
1987 |
{ |
1988 |
TCPCharDriver *s = chr->opaque; |
1989 |
return recv(s->fd, buf, len, 0); |
1990 |
} |
1991 |
#endif
|
1992 |
|
1993 |
static void tcp_chr_read(void *opaque) |
1994 |
{ |
1995 |
CharDriverState *chr = opaque; |
1996 |
TCPCharDriver *s = chr->opaque; |
1997 |
uint8_t buf[1024];
|
1998 |
int len, size;
|
1999 |
|
2000 |
if (!s->connected || s->max_size <= 0) |
2001 |
return;
|
2002 |
len = sizeof(buf);
|
2003 |
if (len > s->max_size)
|
2004 |
len = s->max_size; |
2005 |
size = tcp_chr_recv(chr, (void *)buf, len);
|
2006 |
if (size == 0) { |
2007 |
/* connection closed */
|
2008 |
s->connected = 0;
|
2009 |
if (s->listen_fd >= 0) { |
2010 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
2011 |
} |
2012 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
2013 |
closesocket(s->fd); |
2014 |
s->fd = -1;
|
2015 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
2016 |
} else if (size > 0) { |
2017 |
if (s->do_telnetopt)
|
2018 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
2019 |
if (size > 0) |
2020 |
qemu_chr_read(chr, buf, size); |
2021 |
if (s->msgfd != -1) { |
2022 |
close(s->msgfd); |
2023 |
s->msgfd = -1;
|
2024 |
} |
2025 |
} |
2026 |
} |
2027 |
|
2028 |
static void tcp_chr_connect(void *opaque) |
2029 |
{ |
2030 |
CharDriverState *chr = opaque; |
2031 |
TCPCharDriver *s = chr->opaque; |
2032 |
|
2033 |
s->connected = 1;
|
2034 |
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, |
2035 |
tcp_chr_read, NULL, chr);
|
2036 |
qemu_chr_reset(chr); |
2037 |
} |
2038 |
|
2039 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
2040 |
static void tcp_chr_telnet_init(int fd) |
2041 |
{ |
2042 |
char buf[3]; |
2043 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
2044 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
2045 |
send(fd, (char *)buf, 3, 0); |
2046 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
2047 |
send(fd, (char *)buf, 3, 0); |
2048 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
2049 |
send(fd, (char *)buf, 3, 0); |
2050 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
2051 |
send(fd, (char *)buf, 3, 0); |
2052 |
} |
2053 |
|
2054 |
static void socket_set_nodelay(int fd) |
2055 |
{ |
2056 |
int val = 1; |
2057 |
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
2058 |
} |
2059 |
|
2060 |
static void tcp_chr_accept(void *opaque) |
2061 |
{ |
2062 |
CharDriverState *chr = opaque; |
2063 |
TCPCharDriver *s = chr->opaque; |
2064 |
struct sockaddr_in saddr;
|
2065 |
#ifndef _WIN32
|
2066 |
struct sockaddr_un uaddr;
|
2067 |
#endif
|
2068 |
struct sockaddr *addr;
|
2069 |
socklen_t len; |
2070 |
int fd;
|
2071 |
|
2072 |
for(;;) {
|
2073 |
#ifndef _WIN32
|
2074 |
if (s->is_unix) {
|
2075 |
len = sizeof(uaddr);
|
2076 |
addr = (struct sockaddr *)&uaddr;
|
2077 |
} else
|
2078 |
#endif
|
2079 |
{ |
2080 |
len = sizeof(saddr);
|
2081 |
addr = (struct sockaddr *)&saddr;
|
2082 |
} |
2083 |
fd = accept(s->listen_fd, addr, &len); |
2084 |
if (fd < 0 && errno != EINTR) { |
2085 |
return;
|
2086 |
} else if (fd >= 0) { |
2087 |
if (s->do_telnetopt)
|
2088 |
tcp_chr_telnet_init(fd); |
2089 |
break;
|
2090 |
} |
2091 |
} |
2092 |
socket_set_nonblock(fd); |
2093 |
if (s->do_nodelay)
|
2094 |
socket_set_nodelay(fd); |
2095 |
s->fd = fd; |
2096 |
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
2097 |
tcp_chr_connect(chr); |
2098 |
} |
2099 |
|
2100 |
static void tcp_chr_close(CharDriverState *chr) |
2101 |
{ |
2102 |
TCPCharDriver *s = chr->opaque; |
2103 |
if (s->fd >= 0) { |
2104 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
2105 |
closesocket(s->fd); |
2106 |
} |
2107 |
if (s->listen_fd >= 0) { |
2108 |
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
2109 |
closesocket(s->listen_fd); |
2110 |
} |
2111 |
qemu_free(s); |
2112 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
2113 |
} |
2114 |
|
2115 |
static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
|
2116 |
{ |
2117 |
CharDriverState *chr = NULL;
|
2118 |
TCPCharDriver *s = NULL;
|
2119 |
int fd = -1; |
2120 |
int is_listen;
|
2121 |
int is_waitconnect;
|
2122 |
int do_nodelay;
|
2123 |
int is_unix;
|
2124 |
int is_telnet;
|
2125 |
|
2126 |
is_listen = qemu_opt_get_bool(opts, "server", 0); |
2127 |
is_waitconnect = qemu_opt_get_bool(opts, "wait", 1); |
2128 |
is_telnet = qemu_opt_get_bool(opts, "telnet", 0); |
2129 |
do_nodelay = !qemu_opt_get_bool(opts, "delay", 1); |
2130 |
is_unix = qemu_opt_get(opts, "path") != NULL; |
2131 |
if (!is_listen)
|
2132 |
is_waitconnect = 0;
|
2133 |
|
2134 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
2135 |
s = qemu_mallocz(sizeof(TCPCharDriver));
|
2136 |
|
2137 |
if (is_unix) {
|
2138 |
if (is_listen) {
|
2139 |
fd = unix_listen_opts(opts); |
2140 |
} else {
|
2141 |
fd = unix_connect_opts(opts); |
2142 |
} |
2143 |
} else {
|
2144 |
if (is_listen) {
|
2145 |
fd = inet_listen_opts(opts, 0);
|
2146 |
} else {
|
2147 |
fd = inet_connect_opts(opts); |
2148 |
} |
2149 |
} |
2150 |
if (fd < 0) |
2151 |
goto fail;
|
2152 |
|
2153 |
if (!is_waitconnect)
|
2154 |
socket_set_nonblock(fd); |
2155 |
|
2156 |
s->connected = 0;
|
2157 |
s->fd = -1;
|
2158 |
s->listen_fd = -1;
|
2159 |
s->msgfd = -1;
|
2160 |
s->is_unix = is_unix; |
2161 |
s->do_nodelay = do_nodelay && !is_unix; |
2162 |
|
2163 |
chr->opaque = s; |
2164 |
chr->chr_write = tcp_chr_write; |
2165 |
chr->chr_close = tcp_chr_close; |
2166 |
chr->get_msgfd = tcp_get_msgfd; |
2167 |
|
2168 |
if (is_listen) {
|
2169 |
s->listen_fd = fd; |
2170 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
2171 |
if (is_telnet)
|
2172 |
s->do_telnetopt = 1;
|
2173 |
|
2174 |
} else {
|
2175 |
s->connected = 1;
|
2176 |
s->fd = fd; |
2177 |
socket_set_nodelay(fd); |
2178 |
tcp_chr_connect(chr); |
2179 |
} |
2180 |
|
2181 |
/* for "info chardev" monitor command */
|
2182 |
chr->filename = qemu_malloc(256);
|
2183 |
if (is_unix) {
|
2184 |
snprintf(chr->filename, 256, "unix:%s%s", |
2185 |
qemu_opt_get(opts, "path"),
|
2186 |
qemu_opt_get_bool(opts, "server", 0) ? ",server" : ""); |
2187 |
} else if (is_telnet) { |
2188 |
snprintf(chr->filename, 256, "telnet:%s:%s%s", |
2189 |
qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"), |
2190 |
qemu_opt_get_bool(opts, "server", 0) ? ",server" : ""); |
2191 |
} else {
|
2192 |
snprintf(chr->filename, 256, "tcp:%s:%s%s", |
2193 |
qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"), |
2194 |
qemu_opt_get_bool(opts, "server", 0) ? ",server" : ""); |
2195 |
} |
2196 |
|
2197 |
if (is_listen && is_waitconnect) {
|
2198 |
printf("QEMU waiting for connection on: %s\n",
|
2199 |
chr->filename); |
2200 |
tcp_chr_accept(chr); |
2201 |
socket_set_nonblock(s->listen_fd); |
2202 |
} |
2203 |
return chr;
|
2204 |
|
2205 |
fail:
|
2206 |
if (fd >= 0) |
2207 |
closesocket(fd); |
2208 |
qemu_free(s); |
2209 |
qemu_free(chr); |
2210 |
return NULL; |
2211 |
} |
2212 |
|
2213 |
static QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename) |
2214 |
{ |
2215 |
char host[65], port[33], width[8], height[8]; |
2216 |
int pos;
|
2217 |
const char *p; |
2218 |
QemuOpts *opts; |
2219 |
|
2220 |
opts = qemu_opts_create(&qemu_chardev_opts, label, 1);
|
2221 |
if (NULL == opts) |
2222 |
return NULL; |
2223 |
|
2224 |
if (strstart(filename, "mon:", &p)) { |
2225 |
filename = p; |
2226 |
qemu_opt_set(opts, "mux", "on"); |
2227 |
} |
2228 |
|
2229 |
if (strcmp(filename, "null") == 0 || |
2230 |
strcmp(filename, "pty") == 0 || |
2231 |
strcmp(filename, "msmouse") == 0 || |
2232 |
strcmp(filename, "braille") == 0 || |
2233 |
strcmp(filename, "stdio") == 0) { |
2234 |
qemu_opt_set(opts, "backend", filename);
|
2235 |
return opts;
|
2236 |
} |
2237 |
if (strstart(filename, "vc", &p)) { |
2238 |
qemu_opt_set(opts, "backend", "vc"); |
2239 |
if (*p == ':') { |
2240 |
if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) { |
2241 |
/* pixels */
|
2242 |
qemu_opt_set(opts, "width", width);
|
2243 |
qemu_opt_set(opts, "height", height);
|
2244 |
} else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) { |
2245 |
/* chars */
|
2246 |
qemu_opt_set(opts, "cols", width);
|
2247 |
qemu_opt_set(opts, "rows", height);
|
2248 |
} else {
|
2249 |
goto fail;
|
2250 |
} |
2251 |
} |
2252 |
return opts;
|
2253 |
} |
2254 |
if (strcmp(filename, "con:") == 0) { |
2255 |
qemu_opt_set(opts, "backend", "console"); |
2256 |
return opts;
|
2257 |
} |
2258 |
if (strstart(filename, "COM", NULL)) { |
2259 |
qemu_opt_set(opts, "backend", "serial"); |
2260 |
qemu_opt_set(opts, "path", filename);
|
2261 |
return opts;
|
2262 |
} |
2263 |
if (strstart(filename, "file:", &p)) { |
2264 |
qemu_opt_set(opts, "backend", "file"); |
2265 |
qemu_opt_set(opts, "path", p);
|
2266 |
return opts;
|
2267 |
} |
2268 |
if (strstart(filename, "pipe:", &p)) { |
2269 |
qemu_opt_set(opts, "backend", "pipe"); |
2270 |
qemu_opt_set(opts, "path", p);
|
2271 |
return opts;
|
2272 |
} |
2273 |
if (strstart(filename, "tcp:", &p) || |
2274 |
strstart(filename, "telnet:", &p)) {
|
2275 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
2276 |
host[0] = 0; |
2277 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) |
2278 |
goto fail;
|
2279 |
} |
2280 |
qemu_opt_set(opts, "backend", "socket"); |
2281 |
qemu_opt_set(opts, "host", host);
|
2282 |
qemu_opt_set(opts, "port", port);
|
2283 |
if (p[pos] == ',') { |
2284 |
if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0) |
2285 |
goto fail;
|
2286 |
} |
2287 |
if (strstart(filename, "telnet:", &p)) |
2288 |
qemu_opt_set(opts, "telnet", "on"); |
2289 |
return opts;
|
2290 |
} |
2291 |
if (strstart(filename, "udp:", &p)) { |
2292 |
qemu_opt_set(opts, "backend", "udp"); |
2293 |
if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) { |
2294 |
host[0] = 0; |
2295 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) { |
2296 |
fprintf(stderr, "udp #1\n");
|
2297 |
goto fail;
|
2298 |
} |
2299 |
} |
2300 |
qemu_opt_set(opts, "host", host);
|
2301 |
qemu_opt_set(opts, "port", port);
|
2302 |
if (p[pos] == '@') { |
2303 |
p += pos + 1;
|
2304 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
2305 |
host[0] = 0; |
2306 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) { |
2307 |
fprintf(stderr, "udp #2\n");
|
2308 |
goto fail;
|
2309 |
} |
2310 |
} |
2311 |
qemu_opt_set(opts, "localaddr", host);
|
2312 |
qemu_opt_set(opts, "localport", port);
|
2313 |
} |
2314 |
return opts;
|
2315 |
} |
2316 |
if (strstart(filename, "unix:", &p)) { |
2317 |
qemu_opt_set(opts, "backend", "socket"); |
2318 |
if (qemu_opts_do_parse(opts, p, "path") != 0) |
2319 |
goto fail;
|
2320 |
return opts;
|
2321 |
} |
2322 |
if (strstart(filename, "/dev/parport", NULL) || |
2323 |
strstart(filename, "/dev/ppi", NULL)) { |
2324 |
qemu_opt_set(opts, "backend", "parport"); |
2325 |
qemu_opt_set(opts, "path", filename);
|
2326 |
return opts;
|
2327 |
} |
2328 |
if (strstart(filename, "/dev/", NULL)) { |
2329 |
qemu_opt_set(opts, "backend", "tty"); |
2330 |
qemu_opt_set(opts, "path", filename);
|
2331 |
return opts;
|
2332 |
} |
2333 |
|
2334 |
fail:
|
2335 |
fprintf(stderr, "%s: fail on \"%s\"\n", __FUNCTION__, filename);
|
2336 |
qemu_opts_del(opts); |
2337 |
return NULL; |
2338 |
} |
2339 |
|
2340 |
static const struct { |
2341 |
const char *name; |
2342 |
CharDriverState *(*open)(QemuOpts *opts); |
2343 |
} backend_table[] = { |
2344 |
{ .name = "null", .open = qemu_chr_open_null },
|
2345 |
{ .name = "socket", .open = qemu_chr_open_socket },
|
2346 |
{ .name = "udp", .open = qemu_chr_open_udp },
|
2347 |
{ .name = "msmouse", .open = qemu_chr_open_msmouse },
|
2348 |
{ .name = "vc", .open = text_console_init },
|
2349 |
#ifdef _WIN32
|
2350 |
{ .name = "file", .open = qemu_chr_open_win_file_out },
|
2351 |
{ .name = "pipe", .open = qemu_chr_open_win_pipe },
|
2352 |
{ .name = "console", .open = qemu_chr_open_win_con },
|
2353 |
{ .name = "serial", .open = qemu_chr_open_win },
|
2354 |
#else
|
2355 |
{ .name = "file", .open = qemu_chr_open_file_out },
|
2356 |
{ .name = "pipe", .open = qemu_chr_open_pipe },
|
2357 |
{ .name = "pty", .open = qemu_chr_open_pty },
|
2358 |
{ .name = "stdio", .open = qemu_chr_open_stdio },
|
2359 |
#endif
|
2360 |
#ifdef CONFIG_BRLAPI
|
2361 |
{ .name = "braille", .open = chr_baum_init },
|
2362 |
#endif
|
2363 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
2364 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) |
2365 |
{ .name = "tty", .open = qemu_chr_open_tty },
|
2366 |
#endif
|
2367 |
#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__)
|
2368 |
{ .name = "parport", .open = qemu_chr_open_pp },
|
2369 |
#endif
|
2370 |
}; |
2371 |
|
2372 |
CharDriverState *qemu_chr_open_opts(QemuOpts *opts, |
2373 |
void (*init)(struct CharDriverState *s)) |
2374 |
{ |
2375 |
CharDriverState *chr; |
2376 |
int i;
|
2377 |
|
2378 |
if (qemu_opts_id(opts) == NULL) { |
2379 |
fprintf(stderr, "chardev: no id specified\n");
|
2380 |
return NULL; |
2381 |
} |
2382 |
|
2383 |
for (i = 0; i < ARRAY_SIZE(backend_table); i++) { |
2384 |
if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0) |
2385 |
break;
|
2386 |
} |
2387 |
if (i == ARRAY_SIZE(backend_table)) {
|
2388 |
fprintf(stderr, "chardev: backend \"%s\" not found\n",
|
2389 |
qemu_opt_get(opts, "backend"));
|
2390 |
return NULL; |
2391 |
} |
2392 |
|
2393 |
chr = backend_table[i].open(opts); |
2394 |
if (!chr) {
|
2395 |
fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
|
2396 |
qemu_opt_get(opts, "backend"));
|
2397 |
return NULL; |
2398 |
} |
2399 |
|
2400 |
if (!chr->filename)
|
2401 |
chr->filename = qemu_strdup(qemu_opt_get(opts, "backend"));
|
2402 |
chr->init = init; |
2403 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
2404 |
|
2405 |
if (qemu_opt_get_bool(opts, "mux", 0)) { |
2406 |
CharDriverState *base = chr; |
2407 |
int len = strlen(qemu_opts_id(opts)) + 6; |
2408 |
base->label = qemu_malloc(len); |
2409 |
snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
|
2410 |
chr = qemu_chr_open_mux(base); |
2411 |
chr->filename = base->filename; |
2412 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
2413 |
} |
2414 |
chr->label = qemu_strdup(qemu_opts_id(opts)); |
2415 |
return chr;
|
2416 |
} |
2417 |
|
2418 |
CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) |
2419 |
{ |
2420 |
const char *p; |
2421 |
CharDriverState *chr; |
2422 |
QemuOpts *opts; |
2423 |
|
2424 |
if (strstart(filename, "chardev:", &p)) { |
2425 |
return qemu_chr_find(p);
|
2426 |
} |
2427 |
|
2428 |
opts = qemu_chr_parse_compat(label, filename); |
2429 |
if (!opts)
|
2430 |
return NULL; |
2431 |
|
2432 |
chr = qemu_chr_open_opts(opts, init); |
2433 |
if (chr && qemu_opt_get_bool(opts, "mux", 0)) { |
2434 |
monitor_init(chr, MONITOR_USE_READLINE); |
2435 |
} |
2436 |
return chr;
|
2437 |
} |
2438 |
|
2439 |
void qemu_chr_close(CharDriverState *chr)
|
2440 |
{ |
2441 |
QTAILQ_REMOVE(&chardevs, chr, next); |
2442 |
if (chr->chr_close)
|
2443 |
chr->chr_close(chr); |
2444 |
qemu_free(chr->filename); |
2445 |
qemu_free(chr->label); |
2446 |
qemu_free(chr); |
2447 |
} |
2448 |
|
2449 |
void qemu_chr_info(Monitor *mon)
|
2450 |
{ |
2451 |
CharDriverState *chr; |
2452 |
|
2453 |
QTAILQ_FOREACH(chr, &chardevs, next) { |
2454 |
monitor_printf(mon, "%s: filename=%s\n", chr->label, chr->filename);
|
2455 |
} |
2456 |
} |
2457 |
|
2458 |
CharDriverState *qemu_chr_find(const char *name) |
2459 |
{ |
2460 |
CharDriverState *chr; |
2461 |
|
2462 |
QTAILQ_FOREACH(chr, &chardevs, next) { |
2463 |
if (strcmp(chr->label, name) != 0) |
2464 |
continue;
|
2465 |
return chr;
|
2466 |
} |
2467 |
return NULL; |
2468 |
} |