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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 "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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|
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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 _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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#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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|
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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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|
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void qemu_chr_reset(CharDriverState *s)
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{ |
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if (s->bh == NULL) { |
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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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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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} |
131 |
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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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} |
138 |
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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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} |
150 |
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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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} |
156 |
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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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} |
172 |
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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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} |
191 |
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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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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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} |
200 |
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/* MUX driver for serial I/O splitting */
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static int term_timestamps; |
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static int64_t term_timestamps_start;
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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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unsigned char buffer[MUX_BUFFER_SIZE]; |
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int prod;
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int cons;
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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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} MuxDriver; |
220 |
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static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
223 |
{ |
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MuxDriver *d = chr->opaque; |
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int ret;
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if (!term_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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ret += d->drv->chr_write(d->drv, buf+i, 1);
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if (buf[i] == '\n') { |
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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 (term_timestamps_start == -1) |
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term_timestamps_start = ti; |
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ti -= term_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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} |
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} |
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} |
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return ret;
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} |
256 |
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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'); |
278 |
} 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)); |
284 |
for (i = 0; mux_help[i] != NULL; i++) { |
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for (j=0; mux_help[i][j] != '\0'; j++) { |
286 |
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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} |
291 |
} |
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} |
293 |
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static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
295 |
{ |
296 |
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 '?': |
302 |
case 'h': |
303 |
mux_print_help(chr); |
304 |
break;
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case 'x': |
306 |
{ |
307 |
const char *term = "QEMU: Terminated\n\r"; |
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chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
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exit(0);
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break;
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} |
312 |
case 's': |
313 |
{ |
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int i;
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for (i = 0; i < nb_drives; i++) { |
316 |
bdrv_commit(drives_table[i].bdrv); |
317 |
} |
318 |
} |
319 |
break;
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320 |
case 'b': |
321 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
322 |
break;
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323 |
case 'c': |
324 |
/* Switch to the next registered device */
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chr->focus++; |
326 |
if (chr->focus >= d->mux_cnt)
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chr->focus = 0;
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break;
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case 't': |
330 |
term_timestamps = !term_timestamps; |
331 |
term_timestamps_start = -1;
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break;
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} |
334 |
} else if (ch == term_escape_char) { |
335 |
d->term_got_escape = 1;
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} else {
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send_char:
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return 1; |
339 |
} |
340 |
return 0; |
341 |
} |
342 |
|
343 |
static void mux_chr_accept_input(CharDriverState *chr) |
344 |
{ |
345 |
int m = chr->focus;
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MuxDriver *d = chr->opaque; |
347 |
|
348 |
while (d->prod != d->cons &&
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d->chr_can_read[m] && |
350 |
d->chr_can_read[m](d->ext_opaque[m])) { |
351 |
d->chr_read[m](d->ext_opaque[m], |
352 |
&d->buffer[d->cons++ & MUX_BUFFER_MASK], 1);
|
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} |
354 |
} |
355 |
|
356 |
static int mux_chr_can_read(void *opaque) |
357 |
{ |
358 |
CharDriverState *chr = opaque; |
359 |
MuxDriver *d = chr->opaque; |
360 |
|
361 |
if ((d->prod - d->cons) < MUX_BUFFER_SIZE)
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return 1; |
363 |
if (d->chr_can_read[chr->focus])
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364 |
return d->chr_can_read[chr->focus](d->ext_opaque[chr->focus]);
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return 0; |
366 |
} |
367 |
|
368 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
369 |
{ |
370 |
CharDriverState *chr = opaque; |
371 |
MuxDriver *d = chr->opaque; |
372 |
int m = chr->focus;
|
373 |
int i;
|
374 |
|
375 |
mux_chr_accept_input (opaque); |
376 |
|
377 |
for(i = 0; i < size; i++) |
378 |
if (mux_proc_byte(chr, d, buf[i])) {
|
379 |
if (d->prod == d->cons &&
|
380 |
d->chr_can_read[m] && |
381 |
d->chr_can_read[m](d->ext_opaque[m])) |
382 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
383 |
else
|
384 |
d->buffer[d->prod++ & MUX_BUFFER_MASK] = buf[i]; |
385 |
} |
386 |
} |
387 |
|
388 |
static void mux_chr_event(void *opaque, int event) |
389 |
{ |
390 |
CharDriverState *chr = opaque; |
391 |
MuxDriver *d = chr->opaque; |
392 |
int i;
|
393 |
|
394 |
/* Send the event to all registered listeners */
|
395 |
for (i = 0; i < d->mux_cnt; i++) |
396 |
if (d->chr_event[i])
|
397 |
d->chr_event[i](d->ext_opaque[i], event); |
398 |
} |
399 |
|
400 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
401 |
{ |
402 |
MuxDriver *d = chr->opaque; |
403 |
|
404 |
if (d->mux_cnt >= MAX_MUX) {
|
405 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
406 |
return;
|
407 |
} |
408 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
409 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
410 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
411 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
412 |
/* Fix up the real driver with mux routines */
|
413 |
if (d->mux_cnt == 0) { |
414 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
415 |
mux_chr_event, chr); |
416 |
} |
417 |
chr->focus = d->mux_cnt; |
418 |
d->mux_cnt++; |
419 |
} |
420 |
|
421 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
422 |
{ |
423 |
CharDriverState *chr; |
424 |
MuxDriver *d; |
425 |
|
426 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
427 |
d = qemu_mallocz(sizeof(MuxDriver));
|
428 |
|
429 |
chr->opaque = d; |
430 |
d->drv = drv; |
431 |
chr->focus = -1;
|
432 |
chr->chr_write = mux_chr_write; |
433 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
434 |
chr->chr_accept_input = mux_chr_accept_input; |
435 |
return chr;
|
436 |
} |
437 |
|
438 |
|
439 |
#ifdef _WIN32
|
440 |
int send_all(int fd, const void *buf, int len1) |
441 |
{ |
442 |
int ret, len;
|
443 |
|
444 |
len = len1; |
445 |
while (len > 0) { |
446 |
ret = send(fd, buf, len, 0);
|
447 |
if (ret < 0) { |
448 |
errno = WSAGetLastError(); |
449 |
if (errno != WSAEWOULDBLOCK) {
|
450 |
return -1; |
451 |
} |
452 |
} else if (ret == 0) { |
453 |
break;
|
454 |
} else {
|
455 |
buf += ret; |
456 |
len -= ret; |
457 |
} |
458 |
} |
459 |
return len1 - len;
|
460 |
} |
461 |
|
462 |
#else
|
463 |
|
464 |
static int unix_write(int fd, const uint8_t *buf, int len1) |
465 |
{ |
466 |
int ret, len;
|
467 |
|
468 |
len = len1; |
469 |
while (len > 0) { |
470 |
ret = write(fd, buf, len); |
471 |
if (ret < 0) { |
472 |
if (errno != EINTR && errno != EAGAIN)
|
473 |
return -1; |
474 |
} else if (ret == 0) { |
475 |
break;
|
476 |
} else {
|
477 |
buf += ret; |
478 |
len -= ret; |
479 |
} |
480 |
} |
481 |
return len1 - len;
|
482 |
} |
483 |
|
484 |
int send_all(int fd, const void *buf, int len1) |
485 |
{ |
486 |
return unix_write(fd, buf, len1);
|
487 |
} |
488 |
#endif /* !_WIN32 */ |
489 |
|
490 |
#ifndef _WIN32
|
491 |
|
492 |
typedef struct { |
493 |
int fd_in, fd_out;
|
494 |
int max_size;
|
495 |
} FDCharDriver; |
496 |
|
497 |
#define STDIO_MAX_CLIENTS 1 |
498 |
static int stdio_nb_clients = 0; |
499 |
|
500 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
501 |
{ |
502 |
FDCharDriver *s = chr->opaque; |
503 |
return send_all(s->fd_out, buf, len);
|
504 |
} |
505 |
|
506 |
static int fd_chr_read_poll(void *opaque) |
507 |
{ |
508 |
CharDriverState *chr = opaque; |
509 |
FDCharDriver *s = chr->opaque; |
510 |
|
511 |
s->max_size = qemu_chr_can_read(chr); |
512 |
return s->max_size;
|
513 |
} |
514 |
|
515 |
static void fd_chr_read(void *opaque) |
516 |
{ |
517 |
CharDriverState *chr = opaque; |
518 |
FDCharDriver *s = chr->opaque; |
519 |
int size, len;
|
520 |
uint8_t buf[1024];
|
521 |
|
522 |
len = sizeof(buf);
|
523 |
if (len > s->max_size)
|
524 |
len = s->max_size; |
525 |
if (len == 0) |
526 |
return;
|
527 |
size = read(s->fd_in, buf, len); |
528 |
if (size == 0) { |
529 |
/* FD has been closed. Remove it from the active list. */
|
530 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
531 |
return;
|
532 |
} |
533 |
if (size > 0) { |
534 |
qemu_chr_read(chr, buf, size); |
535 |
} |
536 |
} |
537 |
|
538 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
539 |
{ |
540 |
FDCharDriver *s = chr->opaque; |
541 |
|
542 |
if (s->fd_in >= 0) { |
543 |
if (nographic && s->fd_in == 0) { |
544 |
} else {
|
545 |
qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, |
546 |
fd_chr_read, NULL, chr);
|
547 |
} |
548 |
} |
549 |
} |
550 |
|
551 |
static void fd_chr_close(struct CharDriverState *chr) |
552 |
{ |
553 |
FDCharDriver *s = chr->opaque; |
554 |
|
555 |
if (s->fd_in >= 0) { |
556 |
if (nographic && s->fd_in == 0) { |
557 |
} else {
|
558 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
559 |
} |
560 |
} |
561 |
|
562 |
qemu_free(s); |
563 |
} |
564 |
|
565 |
/* open a character device to a unix fd */
|
566 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
567 |
{ |
568 |
CharDriverState *chr; |
569 |
FDCharDriver *s; |
570 |
|
571 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
572 |
s = qemu_mallocz(sizeof(FDCharDriver));
|
573 |
s->fd_in = fd_in; |
574 |
s->fd_out = fd_out; |
575 |
chr->opaque = s; |
576 |
chr->chr_write = fd_chr_write; |
577 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
578 |
chr->chr_close = fd_chr_close; |
579 |
|
580 |
qemu_chr_reset(chr); |
581 |
|
582 |
return chr;
|
583 |
} |
584 |
|
585 |
static CharDriverState *qemu_chr_open_file_out(const char *file_out) |
586 |
{ |
587 |
int fd_out;
|
588 |
|
589 |
TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
590 |
if (fd_out < 0) |
591 |
return NULL; |
592 |
return qemu_chr_open_fd(-1, fd_out); |
593 |
} |
594 |
|
595 |
static CharDriverState *qemu_chr_open_pipe(const char *filename) |
596 |
{ |
597 |
int fd_in, fd_out;
|
598 |
char filename_in[256], filename_out[256]; |
599 |
|
600 |
snprintf(filename_in, 256, "%s.in", filename); |
601 |
snprintf(filename_out, 256, "%s.out", filename); |
602 |
TFR(fd_in = open(filename_in, O_RDWR | O_BINARY)); |
603 |
TFR(fd_out = open(filename_out, O_RDWR | O_BINARY)); |
604 |
if (fd_in < 0 || fd_out < 0) { |
605 |
if (fd_in >= 0) |
606 |
close(fd_in); |
607 |
if (fd_out >= 0) |
608 |
close(fd_out); |
609 |
TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY)); |
610 |
if (fd_in < 0) |
611 |
return NULL; |
612 |
} |
613 |
return qemu_chr_open_fd(fd_in, fd_out);
|
614 |
} |
615 |
|
616 |
|
617 |
/* for STDIO, we handle the case where several clients use it
|
618 |
(nographic mode) */
|
619 |
|
620 |
#define TERM_FIFO_MAX_SIZE 1 |
621 |
|
622 |
static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
|
623 |
static int term_fifo_size; |
624 |
|
625 |
static int stdio_read_poll(void *opaque) |
626 |
{ |
627 |
CharDriverState *chr = opaque; |
628 |
|
629 |
/* try to flush the queue if needed */
|
630 |
if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) { |
631 |
qemu_chr_read(chr, term_fifo, 1);
|
632 |
term_fifo_size = 0;
|
633 |
} |
634 |
/* see if we can absorb more chars */
|
635 |
if (term_fifo_size == 0) |
636 |
return 1; |
637 |
else
|
638 |
return 0; |
639 |
} |
640 |
|
641 |
static void stdio_read(void *opaque) |
642 |
{ |
643 |
int size;
|
644 |
uint8_t buf[1];
|
645 |
CharDriverState *chr = opaque; |
646 |
|
647 |
size = read(0, buf, 1); |
648 |
if (size == 0) { |
649 |
/* stdin has been closed. Remove it from the active list. */
|
650 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
651 |
return;
|
652 |
} |
653 |
if (size > 0) { |
654 |
if (qemu_chr_can_read(chr) > 0) { |
655 |
qemu_chr_read(chr, buf, 1);
|
656 |
} else if (term_fifo_size == 0) { |
657 |
term_fifo[term_fifo_size++] = buf[0];
|
658 |
} |
659 |
} |
660 |
} |
661 |
|
662 |
/* init terminal so that we can grab keys */
|
663 |
static struct termios oldtty; |
664 |
static int old_fd0_flags; |
665 |
static int term_atexit_done; |
666 |
|
667 |
static void term_exit(void) |
668 |
{ |
669 |
tcsetattr (0, TCSANOW, &oldtty);
|
670 |
fcntl(0, F_SETFL, old_fd0_flags);
|
671 |
} |
672 |
|
673 |
static void term_init(void) |
674 |
{ |
675 |
struct termios tty;
|
676 |
|
677 |
tcgetattr (0, &tty);
|
678 |
oldtty = tty; |
679 |
old_fd0_flags = fcntl(0, F_GETFL);
|
680 |
|
681 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
682 |
|INLCR|IGNCR|ICRNL|IXON); |
683 |
tty.c_oflag |= OPOST; |
684 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
685 |
/* if graphical mode, we allow Ctrl-C handling */
|
686 |
if (nographic)
|
687 |
tty.c_lflag &= ~ISIG; |
688 |
tty.c_cflag &= ~(CSIZE|PARENB); |
689 |
tty.c_cflag |= CS8; |
690 |
tty.c_cc[VMIN] = 1;
|
691 |
tty.c_cc[VTIME] = 0;
|
692 |
|
693 |
tcsetattr (0, TCSANOW, &tty);
|
694 |
|
695 |
if (!term_atexit_done++)
|
696 |
atexit(term_exit); |
697 |
|
698 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
699 |
} |
700 |
|
701 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
702 |
{ |
703 |
term_exit(); |
704 |
stdio_nb_clients--; |
705 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
706 |
fd_chr_close(chr); |
707 |
} |
708 |
|
709 |
static CharDriverState *qemu_chr_open_stdio(void) |
710 |
{ |
711 |
CharDriverState *chr; |
712 |
|
713 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
|
714 |
return NULL; |
715 |
chr = qemu_chr_open_fd(0, 1); |
716 |
chr->chr_close = qemu_chr_close_stdio; |
717 |
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); |
718 |
stdio_nb_clients++; |
719 |
term_init(); |
720 |
|
721 |
return chr;
|
722 |
} |
723 |
|
724 |
#ifdef __sun__
|
725 |
/* Once Solaris has openpty(), this is going to be removed. */
|
726 |
int openpty(int *amaster, int *aslave, char *name, |
727 |
struct termios *termp, struct winsize *winp) |
728 |
{ |
729 |
const char *slave; |
730 |
int mfd = -1, sfd = -1; |
731 |
|
732 |
*amaster = *aslave = -1;
|
733 |
|
734 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
735 |
if (mfd < 0) |
736 |
goto err;
|
737 |
|
738 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
739 |
goto err;
|
740 |
|
741 |
if ((slave = ptsname(mfd)) == NULL) |
742 |
goto err;
|
743 |
|
744 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
745 |
goto err;
|
746 |
|
747 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
748 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
749 |
goto err;
|
750 |
|
751 |
if (amaster)
|
752 |
*amaster = mfd; |
753 |
if (aslave)
|
754 |
*aslave = sfd; |
755 |
if (winp)
|
756 |
ioctl(sfd, TIOCSWINSZ, winp); |
757 |
|
758 |
return 0; |
759 |
|
760 |
err:
|
761 |
if (sfd != -1) |
762 |
close(sfd); |
763 |
close(mfd); |
764 |
return -1; |
765 |
} |
766 |
|
767 |
void cfmakeraw (struct termios *termios_p) |
768 |
{ |
769 |
termios_p->c_iflag &= |
770 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
771 |
termios_p->c_oflag &= ~OPOST; |
772 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
773 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
774 |
termios_p->c_cflag |= CS8; |
775 |
|
776 |
termios_p->c_cc[VMIN] = 0;
|
777 |
termios_p->c_cc[VTIME] = 0;
|
778 |
} |
779 |
#endif
|
780 |
|
781 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
782 |
|| defined(__NetBSD__) || defined(__OpenBSD__) |
783 |
|
784 |
typedef struct { |
785 |
int fd;
|
786 |
int connected;
|
787 |
int polling;
|
788 |
int read_bytes;
|
789 |
QEMUTimer *timer; |
790 |
} PtyCharDriver; |
791 |
|
792 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
793 |
static void pty_chr_state(CharDriverState *chr, int connected); |
794 |
|
795 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
796 |
{ |
797 |
PtyCharDriver *s = chr->opaque; |
798 |
|
799 |
if (!s->connected) {
|
800 |
/* guest sends data, check for (re-)connect */
|
801 |
pty_chr_update_read_handler(chr); |
802 |
return 0; |
803 |
} |
804 |
return send_all(s->fd, buf, len);
|
805 |
} |
806 |
|
807 |
static int pty_chr_read_poll(void *opaque) |
808 |
{ |
809 |
CharDriverState *chr = opaque; |
810 |
PtyCharDriver *s = chr->opaque; |
811 |
|
812 |
s->read_bytes = qemu_chr_can_read(chr); |
813 |
return s->read_bytes;
|
814 |
} |
815 |
|
816 |
static void pty_chr_read(void *opaque) |
817 |
{ |
818 |
CharDriverState *chr = opaque; |
819 |
PtyCharDriver *s = chr->opaque; |
820 |
int size, len;
|
821 |
uint8_t buf[1024];
|
822 |
|
823 |
len = sizeof(buf);
|
824 |
if (len > s->read_bytes)
|
825 |
len = s->read_bytes; |
826 |
if (len == 0) |
827 |
return;
|
828 |
size = read(s->fd, buf, len); |
829 |
if ((size == -1 && errno == EIO) || |
830 |
(size == 0)) {
|
831 |
pty_chr_state(chr, 0);
|
832 |
return;
|
833 |
} |
834 |
if (size > 0) { |
835 |
pty_chr_state(chr, 1);
|
836 |
qemu_chr_read(chr, buf, size); |
837 |
} |
838 |
} |
839 |
|
840 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
841 |
{ |
842 |
PtyCharDriver *s = chr->opaque; |
843 |
|
844 |
qemu_set_fd_handler2(s->fd, pty_chr_read_poll, |
845 |
pty_chr_read, NULL, chr);
|
846 |
s->polling = 1;
|
847 |
/*
|
848 |
* Short timeout here: just need wait long enougth that qemu makes
|
849 |
* it through the poll loop once. When reconnected we want a
|
850 |
* short timeout so we notice it almost instantly. Otherwise
|
851 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
852 |
* timeout to the normal (much longer) poll interval before the
|
853 |
* timer triggers.
|
854 |
*/
|
855 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
|
856 |
} |
857 |
|
858 |
static void pty_chr_state(CharDriverState *chr, int connected) |
859 |
{ |
860 |
PtyCharDriver *s = chr->opaque; |
861 |
|
862 |
if (!connected) {
|
863 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
864 |
s->connected = 0;
|
865 |
s->polling = 0;
|
866 |
/* (re-)connect poll interval for idle guests: once per second.
|
867 |
* We check more frequently in case the guests sends data to
|
868 |
* the virtual device linked to our pty. */
|
869 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
|
870 |
} else {
|
871 |
if (!s->connected)
|
872 |
qemu_chr_reset(chr); |
873 |
s->connected = 1;
|
874 |
} |
875 |
} |
876 |
|
877 |
static void pty_chr_timer(void *opaque) |
878 |
{ |
879 |
struct CharDriverState *chr = opaque;
|
880 |
PtyCharDriver *s = chr->opaque; |
881 |
|
882 |
if (s->connected)
|
883 |
return;
|
884 |
if (s->polling) {
|
885 |
/* If we arrive here without polling being cleared due
|
886 |
* read returning -EIO, then we are (re-)connected */
|
887 |
pty_chr_state(chr, 1);
|
888 |
return;
|
889 |
} |
890 |
|
891 |
/* Next poll ... */
|
892 |
pty_chr_update_read_handler(chr); |
893 |
} |
894 |
|
895 |
static void pty_chr_close(struct CharDriverState *chr) |
896 |
{ |
897 |
PtyCharDriver *s = chr->opaque; |
898 |
|
899 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
900 |
close(s->fd); |
901 |
qemu_free(s); |
902 |
} |
903 |
|
904 |
static CharDriverState *qemu_chr_open_pty(void) |
905 |
{ |
906 |
CharDriverState *chr; |
907 |
PtyCharDriver *s; |
908 |
struct termios tty;
|
909 |
int slave_fd, len;
|
910 |
#if defined(__OpenBSD__)
|
911 |
char pty_name[PATH_MAX];
|
912 |
#define q_ptsname(x) pty_name
|
913 |
#else
|
914 |
char *pty_name = NULL; |
915 |
#define q_ptsname(x) ptsname(x)
|
916 |
#endif
|
917 |
|
918 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
919 |
s = qemu_mallocz(sizeof(PtyCharDriver));
|
920 |
|
921 |
if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
922 |
return NULL; |
923 |
} |
924 |
|
925 |
/* Set raw attributes on the pty. */
|
926 |
tcgetattr(slave_fd, &tty); |
927 |
cfmakeraw(&tty); |
928 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
929 |
close(slave_fd); |
930 |
|
931 |
len = strlen(q_ptsname(s->fd)) + 5;
|
932 |
chr->filename = qemu_malloc(len); |
933 |
snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
|
934 |
fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
|
935 |
|
936 |
chr->opaque = s; |
937 |
chr->chr_write = pty_chr_write; |
938 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
939 |
chr->chr_close = pty_chr_close; |
940 |
|
941 |
s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr); |
942 |
|
943 |
return chr;
|
944 |
} |
945 |
|
946 |
static void tty_serial_init(int fd, int speed, |
947 |
int parity, int data_bits, int stop_bits) |
948 |
{ |
949 |
struct termios tty;
|
950 |
speed_t spd; |
951 |
|
952 |
#if 0
|
953 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
954 |
speed, parity, data_bits, stop_bits);
|
955 |
#endif
|
956 |
tcgetattr (fd, &tty); |
957 |
|
958 |
#define MARGIN 1.1 |
959 |
if (speed <= 50 * MARGIN) |
960 |
spd = B50; |
961 |
else if (speed <= 75 * MARGIN) |
962 |
spd = B75; |
963 |
else if (speed <= 300 * MARGIN) |
964 |
spd = B300; |
965 |
else if (speed <= 600 * MARGIN) |
966 |
spd = B600; |
967 |
else if (speed <= 1200 * MARGIN) |
968 |
spd = B1200; |
969 |
else if (speed <= 2400 * MARGIN) |
970 |
spd = B2400; |
971 |
else if (speed <= 4800 * MARGIN) |
972 |
spd = B4800; |
973 |
else if (speed <= 9600 * MARGIN) |
974 |
spd = B9600; |
975 |
else if (speed <= 19200 * MARGIN) |
976 |
spd = B19200; |
977 |
else if (speed <= 38400 * MARGIN) |
978 |
spd = B38400; |
979 |
else if (speed <= 57600 * MARGIN) |
980 |
spd = B57600; |
981 |
else if (speed <= 115200 * MARGIN) |
982 |
spd = B115200; |
983 |
else
|
984 |
spd = B115200; |
985 |
|
986 |
cfsetispeed(&tty, spd); |
987 |
cfsetospeed(&tty, spd); |
988 |
|
989 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
990 |
|INLCR|IGNCR|ICRNL|IXON); |
991 |
tty.c_oflag |= OPOST; |
992 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
993 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
994 |
switch(data_bits) {
|
995 |
default:
|
996 |
case 8: |
997 |
tty.c_cflag |= CS8; |
998 |
break;
|
999 |
case 7: |
1000 |
tty.c_cflag |= CS7; |
1001 |
break;
|
1002 |
case 6: |
1003 |
tty.c_cflag |= CS6; |
1004 |
break;
|
1005 |
case 5: |
1006 |
tty.c_cflag |= CS5; |
1007 |
break;
|
1008 |
} |
1009 |
switch(parity) {
|
1010 |
default:
|
1011 |
case 'N': |
1012 |
break;
|
1013 |
case 'E': |
1014 |
tty.c_cflag |= PARENB; |
1015 |
break;
|
1016 |
case 'O': |
1017 |
tty.c_cflag |= PARENB | PARODD; |
1018 |
break;
|
1019 |
} |
1020 |
if (stop_bits == 2) |
1021 |
tty.c_cflag |= CSTOPB; |
1022 |
|
1023 |
tcsetattr (fd, TCSANOW, &tty); |
1024 |
} |
1025 |
|
1026 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
1027 |
{ |
1028 |
FDCharDriver *s = chr->opaque; |
1029 |
|
1030 |
switch(cmd) {
|
1031 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
1032 |
{ |
1033 |
QEMUSerialSetParams *ssp = arg; |
1034 |
tty_serial_init(s->fd_in, ssp->speed, ssp->parity, |
1035 |
ssp->data_bits, ssp->stop_bits); |
1036 |
} |
1037 |
break;
|
1038 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
1039 |
{ |
1040 |
int enable = *(int *)arg; |
1041 |
if (enable)
|
1042 |
tcsendbreak(s->fd_in, 1);
|
1043 |
} |
1044 |
break;
|
1045 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
1046 |
{ |
1047 |
int sarg = 0; |
1048 |
int *targ = (int *)arg; |
1049 |
ioctl(s->fd_in, TIOCMGET, &sarg); |
1050 |
*targ = 0;
|
1051 |
if (sarg & TIOCM_CTS)
|
1052 |
*targ |= CHR_TIOCM_CTS; |
1053 |
if (sarg & TIOCM_CAR)
|
1054 |
*targ |= CHR_TIOCM_CAR; |
1055 |
if (sarg & TIOCM_DSR)
|
1056 |
*targ |= CHR_TIOCM_DSR; |
1057 |
if (sarg & TIOCM_RI)
|
1058 |
*targ |= CHR_TIOCM_RI; |
1059 |
if (sarg & TIOCM_DTR)
|
1060 |
*targ |= CHR_TIOCM_DTR; |
1061 |
if (sarg & TIOCM_RTS)
|
1062 |
*targ |= CHR_TIOCM_RTS; |
1063 |
} |
1064 |
break;
|
1065 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
1066 |
{ |
1067 |
int sarg = *(int *)arg; |
1068 |
int targ = 0; |
1069 |
ioctl(s->fd_in, TIOCMGET, &targ); |
1070 |
targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR |
1071 |
| CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); |
1072 |
if (sarg & CHR_TIOCM_CTS)
|
1073 |
targ |= TIOCM_CTS; |
1074 |
if (sarg & CHR_TIOCM_CAR)
|
1075 |
targ |= TIOCM_CAR; |
1076 |
if (sarg & CHR_TIOCM_DSR)
|
1077 |
targ |= TIOCM_DSR; |
1078 |
if (sarg & CHR_TIOCM_RI)
|
1079 |
targ |= TIOCM_RI; |
1080 |
if (sarg & CHR_TIOCM_DTR)
|
1081 |
targ |= TIOCM_DTR; |
1082 |
if (sarg & CHR_TIOCM_RTS)
|
1083 |
targ |= TIOCM_RTS; |
1084 |
ioctl(s->fd_in, TIOCMSET, &targ); |
1085 |
} |
1086 |
break;
|
1087 |
default:
|
1088 |
return -ENOTSUP;
|
1089 |
} |
1090 |
return 0; |
1091 |
} |
1092 |
|
1093 |
static CharDriverState *qemu_chr_open_tty(const char *filename) |
1094 |
{ |
1095 |
CharDriverState *chr; |
1096 |
int fd;
|
1097 |
|
1098 |
TFR(fd = open(filename, O_RDWR | O_NONBLOCK)); |
1099 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
1100 |
chr = qemu_chr_open_fd(fd, fd); |
1101 |
if (!chr) {
|
1102 |
close(fd); |
1103 |
return NULL; |
1104 |
} |
1105 |
chr->chr_ioctl = tty_serial_ioctl; |
1106 |
qemu_chr_reset(chr); |
1107 |
return chr;
|
1108 |
} |
1109 |
#else /* ! __linux__ && ! __sun__ */ |
1110 |
static CharDriverState *qemu_chr_open_pty(void) |
1111 |
{ |
1112 |
return NULL; |
1113 |
} |
1114 |
#endif /* __linux__ || __sun__ */ |
1115 |
|
1116 |
#if defined(__linux__)
|
1117 |
typedef struct { |
1118 |
int fd;
|
1119 |
int mode;
|
1120 |
} ParallelCharDriver; |
1121 |
|
1122 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
1123 |
{ |
1124 |
if (s->mode != mode) {
|
1125 |
int m = mode;
|
1126 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
1127 |
return 0; |
1128 |
s->mode = mode; |
1129 |
} |
1130 |
return 1; |
1131 |
} |
1132 |
|
1133 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1134 |
{ |
1135 |
ParallelCharDriver *drv = chr->opaque; |
1136 |
int fd = drv->fd;
|
1137 |
uint8_t b; |
1138 |
|
1139 |
switch(cmd) {
|
1140 |
case CHR_IOCTL_PP_READ_DATA:
|
1141 |
if (ioctl(fd, PPRDATA, &b) < 0) |
1142 |
return -ENOTSUP;
|
1143 |
*(uint8_t *)arg = b; |
1144 |
break;
|
1145 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1146 |
b = *(uint8_t *)arg; |
1147 |
if (ioctl(fd, PPWDATA, &b) < 0) |
1148 |
return -ENOTSUP;
|
1149 |
break;
|
1150 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1151 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
1152 |
return -ENOTSUP;
|
1153 |
/* Linux gives only the lowest bits, and no way to know data
|
1154 |
direction! For better compatibility set the fixed upper
|
1155 |
bits. */
|
1156 |
*(uint8_t *)arg = b | 0xc0;
|
1157 |
break;
|
1158 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1159 |
b = *(uint8_t *)arg; |
1160 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
1161 |
return -ENOTSUP;
|
1162 |
break;
|
1163 |
case CHR_IOCTL_PP_READ_STATUS:
|
1164 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
1165 |
return -ENOTSUP;
|
1166 |
*(uint8_t *)arg = b; |
1167 |
break;
|
1168 |
case CHR_IOCTL_PP_DATA_DIR:
|
1169 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
1170 |
return -ENOTSUP;
|
1171 |
break;
|
1172 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
1173 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1174 |
struct ParallelIOArg *parg = arg;
|
1175 |
int n = read(fd, parg->buffer, parg->count);
|
1176 |
if (n != parg->count) {
|
1177 |
return -EIO;
|
1178 |
} |
1179 |
} |
1180 |
break;
|
1181 |
case CHR_IOCTL_PP_EPP_READ:
|
1182 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1183 |
struct ParallelIOArg *parg = arg;
|
1184 |
int n = read(fd, parg->buffer, parg->count);
|
1185 |
if (n != parg->count) {
|
1186 |
return -EIO;
|
1187 |
} |
1188 |
} |
1189 |
break;
|
1190 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
1191 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1192 |
struct ParallelIOArg *parg = arg;
|
1193 |
int n = write(fd, parg->buffer, parg->count);
|
1194 |
if (n != parg->count) {
|
1195 |
return -EIO;
|
1196 |
} |
1197 |
} |
1198 |
break;
|
1199 |
case CHR_IOCTL_PP_EPP_WRITE:
|
1200 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1201 |
struct ParallelIOArg *parg = arg;
|
1202 |
int n = write(fd, parg->buffer, parg->count);
|
1203 |
if (n != parg->count) {
|
1204 |
return -EIO;
|
1205 |
} |
1206 |
} |
1207 |
break;
|
1208 |
default:
|
1209 |
return -ENOTSUP;
|
1210 |
} |
1211 |
return 0; |
1212 |
} |
1213 |
|
1214 |
static void pp_close(CharDriverState *chr) |
1215 |
{ |
1216 |
ParallelCharDriver *drv = chr->opaque; |
1217 |
int fd = drv->fd;
|
1218 |
|
1219 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
1220 |
ioctl(fd, PPRELEASE); |
1221 |
close(fd); |
1222 |
qemu_free(drv); |
1223 |
} |
1224 |
|
1225 |
static CharDriverState *qemu_chr_open_pp(const char *filename) |
1226 |
{ |
1227 |
CharDriverState *chr; |
1228 |
ParallelCharDriver *drv; |
1229 |
int fd;
|
1230 |
|
1231 |
TFR(fd = open(filename, O_RDWR)); |
1232 |
if (fd < 0) |
1233 |
return NULL; |
1234 |
|
1235 |
if (ioctl(fd, PPCLAIM) < 0) { |
1236 |
close(fd); |
1237 |
return NULL; |
1238 |
} |
1239 |
|
1240 |
drv = qemu_mallocz(sizeof(ParallelCharDriver));
|
1241 |
drv->fd = fd; |
1242 |
drv->mode = IEEE1284_MODE_COMPAT; |
1243 |
|
1244 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1245 |
chr->chr_write = null_chr_write; |
1246 |
chr->chr_ioctl = pp_ioctl; |
1247 |
chr->chr_close = pp_close; |
1248 |
chr->opaque = drv; |
1249 |
|
1250 |
qemu_chr_reset(chr); |
1251 |
|
1252 |
return chr;
|
1253 |
} |
1254 |
#endif /* __linux__ */ |
1255 |
|
1256 |
#if defined(__FreeBSD__)
|
1257 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1258 |
{ |
1259 |
int fd = (int)chr->opaque; |
1260 |
uint8_t b; |
1261 |
|
1262 |
switch(cmd) {
|
1263 |
case CHR_IOCTL_PP_READ_DATA:
|
1264 |
if (ioctl(fd, PPIGDATA, &b) < 0) |
1265 |
return -ENOTSUP;
|
1266 |
*(uint8_t *)arg = b; |
1267 |
break;
|
1268 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1269 |
b = *(uint8_t *)arg; |
1270 |
if (ioctl(fd, PPISDATA, &b) < 0) |
1271 |
return -ENOTSUP;
|
1272 |
break;
|
1273 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1274 |
if (ioctl(fd, PPIGCTRL, &b) < 0) |
1275 |
return -ENOTSUP;
|
1276 |
*(uint8_t *)arg = b; |
1277 |
break;
|
1278 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1279 |
b = *(uint8_t *)arg; |
1280 |
if (ioctl(fd, PPISCTRL, &b) < 0) |
1281 |
return -ENOTSUP;
|
1282 |
break;
|
1283 |
case CHR_IOCTL_PP_READ_STATUS:
|
1284 |
if (ioctl(fd, PPIGSTATUS, &b) < 0) |
1285 |
return -ENOTSUP;
|
1286 |
*(uint8_t *)arg = b; |
1287 |
break;
|
1288 |
default:
|
1289 |
return -ENOTSUP;
|
1290 |
} |
1291 |
return 0; |
1292 |
} |
1293 |
|
1294 |
static CharDriverState *qemu_chr_open_pp(const char *filename) |
1295 |
{ |
1296 |
CharDriverState *chr; |
1297 |
int fd;
|
1298 |
|
1299 |
fd = open(filename, O_RDWR); |
1300 |
if (fd < 0) |
1301 |
return NULL; |
1302 |
|
1303 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1304 |
chr->opaque = (void *)fd;
|
1305 |
chr->chr_write = null_chr_write; |
1306 |
chr->chr_ioctl = pp_ioctl; |
1307 |
return chr;
|
1308 |
} |
1309 |
#endif
|
1310 |
|
1311 |
#else /* _WIN32 */ |
1312 |
|
1313 |
typedef struct { |
1314 |
int max_size;
|
1315 |
HANDLE hcom, hrecv, hsend; |
1316 |
OVERLAPPED orecv, osend; |
1317 |
BOOL fpipe; |
1318 |
DWORD len; |
1319 |
} WinCharState; |
1320 |
|
1321 |
#define NSENDBUF 2048 |
1322 |
#define NRECVBUF 2048 |
1323 |
#define MAXCONNECT 1 |
1324 |
#define NTIMEOUT 5000 |
1325 |
|
1326 |
static int win_chr_poll(void *opaque); |
1327 |
static int win_chr_pipe_poll(void *opaque); |
1328 |
|
1329 |
static void win_chr_close(CharDriverState *chr) |
1330 |
{ |
1331 |
WinCharState *s = chr->opaque; |
1332 |
|
1333 |
if (s->hsend) {
|
1334 |
CloseHandle(s->hsend); |
1335 |
s->hsend = NULL;
|
1336 |
} |
1337 |
if (s->hrecv) {
|
1338 |
CloseHandle(s->hrecv); |
1339 |
s->hrecv = NULL;
|
1340 |
} |
1341 |
if (s->hcom) {
|
1342 |
CloseHandle(s->hcom); |
1343 |
s->hcom = NULL;
|
1344 |
} |
1345 |
if (s->fpipe)
|
1346 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
1347 |
else
|
1348 |
qemu_del_polling_cb(win_chr_poll, chr); |
1349 |
} |
1350 |
|
1351 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
1352 |
{ |
1353 |
WinCharState *s = chr->opaque; |
1354 |
COMMCONFIG comcfg; |
1355 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; |
1356 |
COMSTAT comstat; |
1357 |
DWORD size; |
1358 |
DWORD err; |
1359 |
|
1360 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1361 |
if (!s->hsend) {
|
1362 |
fprintf(stderr, "Failed CreateEvent\n");
|
1363 |
goto fail;
|
1364 |
} |
1365 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1366 |
if (!s->hrecv) {
|
1367 |
fprintf(stderr, "Failed CreateEvent\n");
|
1368 |
goto fail;
|
1369 |
} |
1370 |
|
1371 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
1372 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
1373 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1374 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
1375 |
s->hcom = NULL;
|
1376 |
goto fail;
|
1377 |
} |
1378 |
|
1379 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
1380 |
fprintf(stderr, "Failed SetupComm\n");
|
1381 |
goto fail;
|
1382 |
} |
1383 |
|
1384 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
1385 |
size = sizeof(COMMCONFIG);
|
1386 |
GetDefaultCommConfig(filename, &comcfg, &size); |
1387 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
1388 |
CommConfigDialog(filename, NULL, &comcfg);
|
1389 |
|
1390 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
1391 |
fprintf(stderr, "Failed SetCommState\n");
|
1392 |
goto fail;
|
1393 |
} |
1394 |
|
1395 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
1396 |
fprintf(stderr, "Failed SetCommMask\n");
|
1397 |
goto fail;
|
1398 |
} |
1399 |
|
1400 |
cto.ReadIntervalTimeout = MAXDWORD; |
1401 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
1402 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
1403 |
goto fail;
|
1404 |
} |
1405 |
|
1406 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
1407 |
fprintf(stderr, "Failed ClearCommError\n");
|
1408 |
goto fail;
|
1409 |
} |
1410 |
qemu_add_polling_cb(win_chr_poll, chr); |
1411 |
return 0; |
1412 |
|
1413 |
fail:
|
1414 |
win_chr_close(chr); |
1415 |
return -1; |
1416 |
} |
1417 |
|
1418 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
1419 |
{ |
1420 |
WinCharState *s = chr->opaque; |
1421 |
DWORD len, ret, size, err; |
1422 |
|
1423 |
len = len1; |
1424 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
1425 |
s->osend.hEvent = s->hsend; |
1426 |
while (len > 0) { |
1427 |
if (s->hsend)
|
1428 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
1429 |
else
|
1430 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
1431 |
if (!ret) {
|
1432 |
err = GetLastError(); |
1433 |
if (err == ERROR_IO_PENDING) {
|
1434 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
1435 |
if (ret) {
|
1436 |
buf += size; |
1437 |
len -= size; |
1438 |
} else {
|
1439 |
break;
|
1440 |
} |
1441 |
} else {
|
1442 |
break;
|
1443 |
} |
1444 |
} else {
|
1445 |
buf += size; |
1446 |
len -= size; |
1447 |
} |
1448 |
} |
1449 |
return len1 - len;
|
1450 |
} |
1451 |
|
1452 |
static int win_chr_read_poll(CharDriverState *chr) |
1453 |
{ |
1454 |
WinCharState *s = chr->opaque; |
1455 |
|
1456 |
s->max_size = qemu_chr_can_read(chr); |
1457 |
return s->max_size;
|
1458 |
} |
1459 |
|
1460 |
static void win_chr_readfile(CharDriverState *chr) |
1461 |
{ |
1462 |
WinCharState *s = chr->opaque; |
1463 |
int ret, err;
|
1464 |
uint8_t buf[1024];
|
1465 |
DWORD size; |
1466 |
|
1467 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
1468 |
s->orecv.hEvent = s->hrecv; |
1469 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
1470 |
if (!ret) {
|
1471 |
err = GetLastError(); |
1472 |
if (err == ERROR_IO_PENDING) {
|
1473 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
1474 |
} |
1475 |
} |
1476 |
|
1477 |
if (size > 0) { |
1478 |
qemu_chr_read(chr, buf, size); |
1479 |
} |
1480 |
} |
1481 |
|
1482 |
static void win_chr_read(CharDriverState *chr) |
1483 |
{ |
1484 |
WinCharState *s = chr->opaque; |
1485 |
|
1486 |
if (s->len > s->max_size)
|
1487 |
s->len = s->max_size; |
1488 |
if (s->len == 0) |
1489 |
return;
|
1490 |
|
1491 |
win_chr_readfile(chr); |
1492 |
} |
1493 |
|
1494 |
static int win_chr_poll(void *opaque) |
1495 |
{ |
1496 |
CharDriverState *chr = opaque; |
1497 |
WinCharState *s = chr->opaque; |
1498 |
COMSTAT status; |
1499 |
DWORD comerr; |
1500 |
|
1501 |
ClearCommError(s->hcom, &comerr, &status); |
1502 |
if (status.cbInQue > 0) { |
1503 |
s->len = status.cbInQue; |
1504 |
win_chr_read_poll(chr); |
1505 |
win_chr_read(chr); |
1506 |
return 1; |
1507 |
} |
1508 |
return 0; |
1509 |
} |
1510 |
|
1511 |
static CharDriverState *qemu_chr_open_win(const char *filename) |
1512 |
{ |
1513 |
CharDriverState *chr; |
1514 |
WinCharState *s; |
1515 |
|
1516 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1517 |
s = qemu_mallocz(sizeof(WinCharState));
|
1518 |
chr->opaque = s; |
1519 |
chr->chr_write = win_chr_write; |
1520 |
chr->chr_close = win_chr_close; |
1521 |
|
1522 |
if (win_chr_init(chr, filename) < 0) { |
1523 |
free(s); |
1524 |
free(chr); |
1525 |
return NULL; |
1526 |
} |
1527 |
qemu_chr_reset(chr); |
1528 |
return chr;
|
1529 |
} |
1530 |
|
1531 |
static int win_chr_pipe_poll(void *opaque) |
1532 |
{ |
1533 |
CharDriverState *chr = opaque; |
1534 |
WinCharState *s = chr->opaque; |
1535 |
DWORD size; |
1536 |
|
1537 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
1538 |
if (size > 0) { |
1539 |
s->len = size; |
1540 |
win_chr_read_poll(chr); |
1541 |
win_chr_read(chr); |
1542 |
return 1; |
1543 |
} |
1544 |
return 0; |
1545 |
} |
1546 |
|
1547 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
1548 |
{ |
1549 |
WinCharState *s = chr->opaque; |
1550 |
OVERLAPPED ov; |
1551 |
int ret;
|
1552 |
DWORD size; |
1553 |
char openname[256]; |
1554 |
|
1555 |
s->fpipe = TRUE; |
1556 |
|
1557 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1558 |
if (!s->hsend) {
|
1559 |
fprintf(stderr, "Failed CreateEvent\n");
|
1560 |
goto fail;
|
1561 |
} |
1562 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1563 |
if (!s->hrecv) {
|
1564 |
fprintf(stderr, "Failed CreateEvent\n");
|
1565 |
goto fail;
|
1566 |
} |
1567 |
|
1568 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
1569 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
1570 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
1571 |
PIPE_WAIT, |
1572 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
1573 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1574 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
1575 |
s->hcom = NULL;
|
1576 |
goto fail;
|
1577 |
} |
1578 |
|
1579 |
ZeroMemory(&ov, sizeof(ov));
|
1580 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
1581 |
ret = ConnectNamedPipe(s->hcom, &ov); |
1582 |
if (ret) {
|
1583 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
1584 |
goto fail;
|
1585 |
} |
1586 |
|
1587 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
1588 |
if (!ret) {
|
1589 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
1590 |
if (ov.hEvent) {
|
1591 |
CloseHandle(ov.hEvent); |
1592 |
ov.hEvent = NULL;
|
1593 |
} |
1594 |
goto fail;
|
1595 |
} |
1596 |
|
1597 |
if (ov.hEvent) {
|
1598 |
CloseHandle(ov.hEvent); |
1599 |
ov.hEvent = NULL;
|
1600 |
} |
1601 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
1602 |
return 0; |
1603 |
|
1604 |
fail:
|
1605 |
win_chr_close(chr); |
1606 |
return -1; |
1607 |
} |
1608 |
|
1609 |
|
1610 |
static CharDriverState *qemu_chr_open_win_pipe(const char *filename) |
1611 |
{ |
1612 |
CharDriverState *chr; |
1613 |
WinCharState *s; |
1614 |
|
1615 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1616 |
s = qemu_mallocz(sizeof(WinCharState));
|
1617 |
chr->opaque = s; |
1618 |
chr->chr_write = win_chr_write; |
1619 |
chr->chr_close = win_chr_close; |
1620 |
|
1621 |
if (win_chr_pipe_init(chr, filename) < 0) { |
1622 |
free(s); |
1623 |
free(chr); |
1624 |
return NULL; |
1625 |
} |
1626 |
qemu_chr_reset(chr); |
1627 |
return chr;
|
1628 |
} |
1629 |
|
1630 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
1631 |
{ |
1632 |
CharDriverState *chr; |
1633 |
WinCharState *s; |
1634 |
|
1635 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1636 |
s = qemu_mallocz(sizeof(WinCharState));
|
1637 |
s->hcom = fd_out; |
1638 |
chr->opaque = s; |
1639 |
chr->chr_write = win_chr_write; |
1640 |
qemu_chr_reset(chr); |
1641 |
return chr;
|
1642 |
} |
1643 |
|
1644 |
static CharDriverState *qemu_chr_open_win_con(const char *filename) |
1645 |
{ |
1646 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
1647 |
} |
1648 |
|
1649 |
static CharDriverState *qemu_chr_open_win_file_out(const char *file_out) |
1650 |
{ |
1651 |
HANDLE fd_out; |
1652 |
|
1653 |
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
1654 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
1655 |
if (fd_out == INVALID_HANDLE_VALUE)
|
1656 |
return NULL; |
1657 |
|
1658 |
return qemu_chr_open_win_file(fd_out);
|
1659 |
} |
1660 |
#endif /* !_WIN32 */ |
1661 |
|
1662 |
/***********************************************************/
|
1663 |
/* UDP Net console */
|
1664 |
|
1665 |
typedef struct { |
1666 |
int fd;
|
1667 |
struct sockaddr_in daddr;
|
1668 |
uint8_t buf[1024];
|
1669 |
int bufcnt;
|
1670 |
int bufptr;
|
1671 |
int max_size;
|
1672 |
} NetCharDriver; |
1673 |
|
1674 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
1675 |
{ |
1676 |
NetCharDriver *s = chr->opaque; |
1677 |
|
1678 |
return sendto(s->fd, buf, len, 0, |
1679 |
(struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in)); |
1680 |
} |
1681 |
|
1682 |
static int udp_chr_read_poll(void *opaque) |
1683 |
{ |
1684 |
CharDriverState *chr = opaque; |
1685 |
NetCharDriver *s = chr->opaque; |
1686 |
|
1687 |
s->max_size = qemu_chr_can_read(chr); |
1688 |
|
1689 |
/* If there were any stray characters in the queue process them
|
1690 |
* first
|
1691 |
*/
|
1692 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
1693 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
1694 |
s->bufptr++; |
1695 |
s->max_size = qemu_chr_can_read(chr); |
1696 |
} |
1697 |
return s->max_size;
|
1698 |
} |
1699 |
|
1700 |
static void udp_chr_read(void *opaque) |
1701 |
{ |
1702 |
CharDriverState *chr = opaque; |
1703 |
NetCharDriver *s = chr->opaque; |
1704 |
|
1705 |
if (s->max_size == 0) |
1706 |
return;
|
1707 |
s->bufcnt = recv(s->fd, s->buf, sizeof(s->buf), 0); |
1708 |
s->bufptr = s->bufcnt; |
1709 |
if (s->bufcnt <= 0) |
1710 |
return;
|
1711 |
|
1712 |
s->bufptr = 0;
|
1713 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
1714 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
1715 |
s->bufptr++; |
1716 |
s->max_size = qemu_chr_can_read(chr); |
1717 |
} |
1718 |
} |
1719 |
|
1720 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
1721 |
{ |
1722 |
NetCharDriver *s = chr->opaque; |
1723 |
|
1724 |
if (s->fd >= 0) { |
1725 |
qemu_set_fd_handler2(s->fd, udp_chr_read_poll, |
1726 |
udp_chr_read, NULL, chr);
|
1727 |
} |
1728 |
} |
1729 |
|
1730 |
static CharDriverState *qemu_chr_open_udp(const char *def) |
1731 |
{ |
1732 |
CharDriverState *chr = NULL;
|
1733 |
NetCharDriver *s = NULL;
|
1734 |
int fd = -1; |
1735 |
struct sockaddr_in saddr;
|
1736 |
|
1737 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1738 |
s = qemu_mallocz(sizeof(NetCharDriver));
|
1739 |
|
1740 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
1741 |
if (fd < 0) { |
1742 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
1743 |
goto return_err;
|
1744 |
} |
1745 |
|
1746 |
if (parse_host_src_port(&s->daddr, &saddr, def) < 0) { |
1747 |
printf("Could not parse: %s\n", def);
|
1748 |
goto return_err;
|
1749 |
} |
1750 |
|
1751 |
if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0) |
1752 |
{ |
1753 |
perror("bind");
|
1754 |
goto return_err;
|
1755 |
} |
1756 |
|
1757 |
s->fd = fd; |
1758 |
s->bufcnt = 0;
|
1759 |
s->bufptr = 0;
|
1760 |
chr->opaque = s; |
1761 |
chr->chr_write = udp_chr_write; |
1762 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
1763 |
return chr;
|
1764 |
|
1765 |
return_err:
|
1766 |
if (chr)
|
1767 |
free(chr); |
1768 |
if (s)
|
1769 |
free(s); |
1770 |
if (fd >= 0) |
1771 |
closesocket(fd); |
1772 |
return NULL; |
1773 |
} |
1774 |
|
1775 |
/***********************************************************/
|
1776 |
/* TCP Net console */
|
1777 |
|
1778 |
typedef struct { |
1779 |
int fd, listen_fd;
|
1780 |
int connected;
|
1781 |
int max_size;
|
1782 |
int do_telnetopt;
|
1783 |
int do_nodelay;
|
1784 |
int is_unix;
|
1785 |
} TCPCharDriver; |
1786 |
|
1787 |
static void tcp_chr_accept(void *opaque); |
1788 |
|
1789 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
1790 |
{ |
1791 |
TCPCharDriver *s = chr->opaque; |
1792 |
if (s->connected) {
|
1793 |
return send_all(s->fd, buf, len);
|
1794 |
} else {
|
1795 |
/* XXX: indicate an error ? */
|
1796 |
return len;
|
1797 |
} |
1798 |
} |
1799 |
|
1800 |
static int tcp_chr_read_poll(void *opaque) |
1801 |
{ |
1802 |
CharDriverState *chr = opaque; |
1803 |
TCPCharDriver *s = chr->opaque; |
1804 |
if (!s->connected)
|
1805 |
return 0; |
1806 |
s->max_size = qemu_chr_can_read(chr); |
1807 |
return s->max_size;
|
1808 |
} |
1809 |
|
1810 |
#define IAC 255 |
1811 |
#define IAC_BREAK 243 |
1812 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
1813 |
TCPCharDriver *s, |
1814 |
uint8_t *buf, int *size)
|
1815 |
{ |
1816 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
1817 |
* char mode with no echo. All IAC options will be removed from
|
1818 |
* the buf and the do_telnetopt variable will be used to track the
|
1819 |
* state of the width of the IAC information.
|
1820 |
*
|
1821 |
* IAC commands come in sets of 3 bytes with the exception of the
|
1822 |
* "IAC BREAK" command and the double IAC.
|
1823 |
*/
|
1824 |
|
1825 |
int i;
|
1826 |
int j = 0; |
1827 |
|
1828 |
for (i = 0; i < *size; i++) { |
1829 |
if (s->do_telnetopt > 1) { |
1830 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
1831 |
/* Double IAC means send an IAC */
|
1832 |
if (j != i)
|
1833 |
buf[j] = buf[i]; |
1834 |
j++; |
1835 |
s->do_telnetopt = 1;
|
1836 |
} else {
|
1837 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
1838 |
/* Handle IAC break commands by sending a serial break */
|
1839 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
1840 |
s->do_telnetopt++; |
1841 |
} |
1842 |
s->do_telnetopt++; |
1843 |
} |
1844 |
if (s->do_telnetopt >= 4) { |
1845 |
s->do_telnetopt = 1;
|
1846 |
} |
1847 |
} else {
|
1848 |
if ((unsigned char)buf[i] == IAC) { |
1849 |
s->do_telnetopt = 2;
|
1850 |
} else {
|
1851 |
if (j != i)
|
1852 |
buf[j] = buf[i]; |
1853 |
j++; |
1854 |
} |
1855 |
} |
1856 |
} |
1857 |
*size = j; |
1858 |
} |
1859 |
|
1860 |
static void tcp_chr_read(void *opaque) |
1861 |
{ |
1862 |
CharDriverState *chr = opaque; |
1863 |
TCPCharDriver *s = chr->opaque; |
1864 |
uint8_t buf[1024];
|
1865 |
int len, size;
|
1866 |
|
1867 |
if (!s->connected || s->max_size <= 0) |
1868 |
return;
|
1869 |
len = sizeof(buf);
|
1870 |
if (len > s->max_size)
|
1871 |
len = s->max_size; |
1872 |
size = recv(s->fd, buf, len, 0);
|
1873 |
if (size == 0) { |
1874 |
/* connection closed */
|
1875 |
s->connected = 0;
|
1876 |
if (s->listen_fd >= 0) { |
1877 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
1878 |
} |
1879 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1880 |
closesocket(s->fd); |
1881 |
s->fd = -1;
|
1882 |
} else if (size > 0) { |
1883 |
if (s->do_telnetopt)
|
1884 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
1885 |
if (size > 0) |
1886 |
qemu_chr_read(chr, buf, size); |
1887 |
} |
1888 |
} |
1889 |
|
1890 |
static void tcp_chr_connect(void *opaque) |
1891 |
{ |
1892 |
CharDriverState *chr = opaque; |
1893 |
TCPCharDriver *s = chr->opaque; |
1894 |
|
1895 |
s->connected = 1;
|
1896 |
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, |
1897 |
tcp_chr_read, NULL, chr);
|
1898 |
qemu_chr_reset(chr); |
1899 |
} |
1900 |
|
1901 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
1902 |
static void tcp_chr_telnet_init(int fd) |
1903 |
{ |
1904 |
char buf[3]; |
1905 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
1906 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
1907 |
send(fd, (char *)buf, 3, 0); |
1908 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
1909 |
send(fd, (char *)buf, 3, 0); |
1910 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
1911 |
send(fd, (char *)buf, 3, 0); |
1912 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
1913 |
send(fd, (char *)buf, 3, 0); |
1914 |
} |
1915 |
|
1916 |
static void socket_set_nodelay(int fd) |
1917 |
{ |
1918 |
int val = 1; |
1919 |
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
1920 |
} |
1921 |
|
1922 |
static void tcp_chr_accept(void *opaque) |
1923 |
{ |
1924 |
CharDriverState *chr = opaque; |
1925 |
TCPCharDriver *s = chr->opaque; |
1926 |
struct sockaddr_in saddr;
|
1927 |
#ifndef _WIN32
|
1928 |
struct sockaddr_un uaddr;
|
1929 |
#endif
|
1930 |
struct sockaddr *addr;
|
1931 |
socklen_t len; |
1932 |
int fd;
|
1933 |
|
1934 |
for(;;) {
|
1935 |
#ifndef _WIN32
|
1936 |
if (s->is_unix) {
|
1937 |
len = sizeof(uaddr);
|
1938 |
addr = (struct sockaddr *)&uaddr;
|
1939 |
} else
|
1940 |
#endif
|
1941 |
{ |
1942 |
len = sizeof(saddr);
|
1943 |
addr = (struct sockaddr *)&saddr;
|
1944 |
} |
1945 |
fd = accept(s->listen_fd, addr, &len); |
1946 |
if (fd < 0 && errno != EINTR) { |
1947 |
return;
|
1948 |
} else if (fd >= 0) { |
1949 |
if (s->do_telnetopt)
|
1950 |
tcp_chr_telnet_init(fd); |
1951 |
break;
|
1952 |
} |
1953 |
} |
1954 |
socket_set_nonblock(fd); |
1955 |
if (s->do_nodelay)
|
1956 |
socket_set_nodelay(fd); |
1957 |
s->fd = fd; |
1958 |
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
1959 |
tcp_chr_connect(chr); |
1960 |
} |
1961 |
|
1962 |
static void tcp_chr_close(CharDriverState *chr) |
1963 |
{ |
1964 |
TCPCharDriver *s = chr->opaque; |
1965 |
if (s->fd >= 0) |
1966 |
closesocket(s->fd); |
1967 |
if (s->listen_fd >= 0) |
1968 |
closesocket(s->listen_fd); |
1969 |
qemu_free(s); |
1970 |
} |
1971 |
|
1972 |
static CharDriverState *qemu_chr_open_tcp(const char *host_str, |
1973 |
int is_telnet,
|
1974 |
int is_unix)
|
1975 |
{ |
1976 |
CharDriverState *chr = NULL;
|
1977 |
TCPCharDriver *s = NULL;
|
1978 |
int fd = -1, offset = 0; |
1979 |
int is_listen = 0; |
1980 |
int is_waitconnect = 1; |
1981 |
int do_nodelay = 0; |
1982 |
const char *ptr; |
1983 |
|
1984 |
ptr = host_str; |
1985 |
while((ptr = strchr(ptr,','))) { |
1986 |
ptr++; |
1987 |
if (!strncmp(ptr,"server",6)) { |
1988 |
is_listen = 1;
|
1989 |
} else if (!strncmp(ptr,"nowait",6)) { |
1990 |
is_waitconnect = 0;
|
1991 |
} else if (!strncmp(ptr,"nodelay",6)) { |
1992 |
do_nodelay = 1;
|
1993 |
} else if (!strncmp(ptr,"to=",3)) { |
1994 |
/* nothing, inet_listen() parses this one */;
|
1995 |
} else {
|
1996 |
printf("Unknown option: %s\n", ptr);
|
1997 |
goto fail;
|
1998 |
} |
1999 |
} |
2000 |
if (!is_listen)
|
2001 |
is_waitconnect = 0;
|
2002 |
|
2003 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
2004 |
s = qemu_mallocz(sizeof(TCPCharDriver));
|
2005 |
|
2006 |
if (is_listen) {
|
2007 |
chr->filename = qemu_malloc(256);
|
2008 |
if (is_unix) {
|
2009 |
pstrcpy(chr->filename, 256, "unix:"); |
2010 |
} else if (is_telnet) { |
2011 |
pstrcpy(chr->filename, 256, "telnet:"); |
2012 |
} else {
|
2013 |
pstrcpy(chr->filename, 256, "tcp:"); |
2014 |
} |
2015 |
offset = strlen(chr->filename); |
2016 |
} |
2017 |
if (is_unix) {
|
2018 |
if (is_listen) {
|
2019 |
fd = unix_listen(host_str, chr->filename + offset, 256 - offset);
|
2020 |
} else {
|
2021 |
fd = unix_connect(host_str); |
2022 |
} |
2023 |
} else {
|
2024 |
if (is_listen) {
|
2025 |
fd = inet_listen(host_str, chr->filename + offset, 256 - offset,
|
2026 |
SOCK_STREAM, 0);
|
2027 |
} else {
|
2028 |
fd = inet_connect(host_str, SOCK_STREAM); |
2029 |
} |
2030 |
} |
2031 |
if (fd < 0) |
2032 |
goto fail;
|
2033 |
|
2034 |
if (!is_waitconnect)
|
2035 |
socket_set_nonblock(fd); |
2036 |
|
2037 |
s->connected = 0;
|
2038 |
s->fd = -1;
|
2039 |
s->listen_fd = -1;
|
2040 |
s->is_unix = is_unix; |
2041 |
s->do_nodelay = do_nodelay && !is_unix; |
2042 |
|
2043 |
chr->opaque = s; |
2044 |
chr->chr_write = tcp_chr_write; |
2045 |
chr->chr_close = tcp_chr_close; |
2046 |
|
2047 |
if (is_listen) {
|
2048 |
s->listen_fd = fd; |
2049 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
2050 |
if (is_telnet)
|
2051 |
s->do_telnetopt = 1;
|
2052 |
} else {
|
2053 |
s->connected = 1;
|
2054 |
s->fd = fd; |
2055 |
socket_set_nodelay(fd); |
2056 |
tcp_chr_connect(chr); |
2057 |
} |
2058 |
|
2059 |
if (is_listen && is_waitconnect) {
|
2060 |
printf("QEMU waiting for connection on: %s\n",
|
2061 |
chr->filename ? chr->filename : host_str); |
2062 |
tcp_chr_accept(chr); |
2063 |
socket_set_nonblock(s->listen_fd); |
2064 |
} |
2065 |
|
2066 |
return chr;
|
2067 |
fail:
|
2068 |
if (fd >= 0) |
2069 |
closesocket(fd); |
2070 |
qemu_free(s); |
2071 |
qemu_free(chr); |
2072 |
return NULL; |
2073 |
} |
2074 |
|
2075 |
static TAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs
|
2076 |
= TAILQ_HEAD_INITIALIZER(chardevs); |
2077 |
|
2078 |
CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) |
2079 |
{ |
2080 |
const char *p; |
2081 |
CharDriverState *chr; |
2082 |
|
2083 |
if (!strcmp(filename, "vc")) { |
2084 |
chr = text_console_init(0);
|
2085 |
} else
|
2086 |
if (strstart(filename, "vc:", &p)) { |
2087 |
chr = text_console_init(p); |
2088 |
} else
|
2089 |
if (!strcmp(filename, "null")) { |
2090 |
chr = qemu_chr_open_null(); |
2091 |
} else
|
2092 |
if (strstart(filename, "tcp:", &p)) { |
2093 |
chr = qemu_chr_open_tcp(p, 0, 0); |
2094 |
} else
|
2095 |
if (strstart(filename, "telnet:", &p)) { |
2096 |
chr = qemu_chr_open_tcp(p, 1, 0); |
2097 |
} else
|
2098 |
if (strstart(filename, "udp:", &p)) { |
2099 |
chr = qemu_chr_open_udp(p); |
2100 |
} else
|
2101 |
if (strstart(filename, "mon:", &p)) { |
2102 |
chr = qemu_chr_open(label, p, NULL);
|
2103 |
if (chr) {
|
2104 |
chr = qemu_chr_open_mux(chr); |
2105 |
monitor_init(chr, !nographic); |
2106 |
} else {
|
2107 |
printf("Unable to open driver: %s\n", p);
|
2108 |
} |
2109 |
} else if (!strcmp(filename, "msmouse")) { |
2110 |
chr = qemu_chr_open_msmouse(); |
2111 |
} else
|
2112 |
#ifndef _WIN32
|
2113 |
if (strstart(filename, "unix:", &p)) { |
2114 |
chr = qemu_chr_open_tcp(p, 0, 1); |
2115 |
} else if (strstart(filename, "file:", &p)) { |
2116 |
chr = qemu_chr_open_file_out(p); |
2117 |
} else if (strstart(filename, "pipe:", &p)) { |
2118 |
chr = qemu_chr_open_pipe(p); |
2119 |
} else if (!strcmp(filename, "pty")) { |
2120 |
chr = qemu_chr_open_pty(); |
2121 |
} else if (!strcmp(filename, "stdio")) { |
2122 |
chr = qemu_chr_open_stdio(); |
2123 |
} else
|
2124 |
#if defined(__linux__)
|
2125 |
if (strstart(filename, "/dev/parport", NULL)) { |
2126 |
chr = qemu_chr_open_pp(filename); |
2127 |
} else
|
2128 |
#elif defined(__FreeBSD__)
|
2129 |
if (strstart(filename, "/dev/ppi", NULL)) { |
2130 |
chr = qemu_chr_open_pp(filename); |
2131 |
} else
|
2132 |
#endif
|
2133 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
2134 |
|| defined(__NetBSD__) || defined(__OpenBSD__) |
2135 |
if (strstart(filename, "/dev/", NULL)) { |
2136 |
chr = qemu_chr_open_tty(filename); |
2137 |
} else
|
2138 |
#endif
|
2139 |
#else /* !_WIN32 */ |
2140 |
if (strstart(filename, "COM", NULL)) { |
2141 |
chr = qemu_chr_open_win(filename); |
2142 |
} else
|
2143 |
if (strstart(filename, "pipe:", &p)) { |
2144 |
chr = qemu_chr_open_win_pipe(p); |
2145 |
} else
|
2146 |
if (strstart(filename, "con:", NULL)) { |
2147 |
chr = qemu_chr_open_win_con(filename); |
2148 |
} else
|
2149 |
if (strstart(filename, "file:", &p)) { |
2150 |
chr = qemu_chr_open_win_file_out(p); |
2151 |
} else
|
2152 |
#endif
|
2153 |
#ifdef CONFIG_BRLAPI
|
2154 |
if (!strcmp(filename, "braille")) { |
2155 |
chr = chr_baum_init(); |
2156 |
} else
|
2157 |
#endif
|
2158 |
{ |
2159 |
chr = NULL;
|
2160 |
} |
2161 |
|
2162 |
if (chr) {
|
2163 |
if (!chr->filename)
|
2164 |
chr->filename = qemu_strdup(filename); |
2165 |
chr->init = init; |
2166 |
chr->label = qemu_strdup(label); |
2167 |
TAILQ_INSERT_TAIL(&chardevs, chr, next); |
2168 |
} |
2169 |
return chr;
|
2170 |
} |
2171 |
|
2172 |
void qemu_chr_close(CharDriverState *chr)
|
2173 |
{ |
2174 |
TAILQ_REMOVE(&chardevs, chr, next); |
2175 |
if (chr->chr_close)
|
2176 |
chr->chr_close(chr); |
2177 |
qemu_free(chr->filename); |
2178 |
qemu_free(chr->label); |
2179 |
qemu_free(chr); |
2180 |
} |
2181 |
|
2182 |
void qemu_chr_info(void) |
2183 |
{ |
2184 |
CharDriverState *chr; |
2185 |
|
2186 |
TAILQ_FOREACH(chr, &chardevs, next) { |
2187 |
term_printf("%s: filename=%s\n", chr->label, chr->filename);
|
2188 |
} |
2189 |
} |