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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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|
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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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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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|
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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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} |
137 |
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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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} |
149 |
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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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} |
171 |
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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(void) |
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{ |
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CharDriverState *chr; |
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chr = qemu_mallocz(sizeof(CharDriverState));
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if (!chr)
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return NULL; |
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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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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; |
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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 (!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 / 1000000000;
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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 / 1000000) % 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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} |
257 |
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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'); |
279 |
} else {
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snprintf(cbuf, sizeof(cbuf),
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"\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
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term_escape_char); |
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} |
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chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf)); |
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for (i = 0; mux_help[i] != NULL; i++) { |
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for (j=0; mux_help[i][j] != '\0'; j++) { |
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if (mux_help[i][j] == '%') |
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chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf)); |
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else
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chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
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} |
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} |
293 |
} |
294 |
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static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
296 |
{ |
297 |
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 '?': |
303 |
case 'h': |
304 |
mux_print_help(chr); |
305 |
break;
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case 'x': |
307 |
{ |
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const char *term = "QEMU: Terminated\n\r"; |
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chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
310 |
exit(0);
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break;
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} |
313 |
case 's': |
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{ |
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int i;
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for (i = 0; i < nb_drives; i++) { |
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bdrv_commit(drives_table[i].bdrv); |
318 |
} |
319 |
} |
320 |
break;
|
321 |
case 'b': |
322 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
323 |
break;
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324 |
case 'c': |
325 |
/* Switch to the next registered device */
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chr->focus++; |
327 |
if (chr->focus >= d->mux_cnt)
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chr->focus = 0;
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break;
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330 |
case 't': |
331 |
term_timestamps = !term_timestamps; |
332 |
term_timestamps_start = -1;
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break;
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} |
335 |
} else if (ch == term_escape_char) { |
336 |
d->term_got_escape = 1;
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} else {
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send_char:
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return 1; |
340 |
} |
341 |
return 0; |
342 |
} |
343 |
|
344 |
static void mux_chr_accept_input(CharDriverState *chr) |
345 |
{ |
346 |
int m = chr->focus;
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MuxDriver *d = chr->opaque; |
348 |
|
349 |
while (d->prod != d->cons &&
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350 |
d->chr_can_read[m] && |
351 |
d->chr_can_read[m](d->ext_opaque[m])) { |
352 |
d->chr_read[m](d->ext_opaque[m], |
353 |
&d->buffer[d->cons++ & MUX_BUFFER_MASK], 1);
|
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} |
355 |
} |
356 |
|
357 |
static int mux_chr_can_read(void *opaque) |
358 |
{ |
359 |
CharDriverState *chr = opaque; |
360 |
MuxDriver *d = chr->opaque; |
361 |
|
362 |
if ((d->prod - d->cons) < MUX_BUFFER_SIZE)
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return 1; |
364 |
if (d->chr_can_read[chr->focus])
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return d->chr_can_read[chr->focus](d->ext_opaque[chr->focus]);
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return 0; |
367 |
} |
368 |
|
369 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
370 |
{ |
371 |
CharDriverState *chr = opaque; |
372 |
MuxDriver *d = chr->opaque; |
373 |
int m = chr->focus;
|
374 |
int i;
|
375 |
|
376 |
mux_chr_accept_input (opaque); |
377 |
|
378 |
for(i = 0; i < size; i++) |
379 |
if (mux_proc_byte(chr, d, buf[i])) {
|
380 |
if (d->prod == d->cons &&
|
381 |
d->chr_can_read[m] && |
382 |
d->chr_can_read[m](d->ext_opaque[m])) |
383 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
384 |
else
|
385 |
d->buffer[d->prod++ & MUX_BUFFER_MASK] = buf[i]; |
386 |
} |
387 |
} |
388 |
|
389 |
static void mux_chr_event(void *opaque, int event) |
390 |
{ |
391 |
CharDriverState *chr = opaque; |
392 |
MuxDriver *d = chr->opaque; |
393 |
int i;
|
394 |
|
395 |
/* Send the event to all registered listeners */
|
396 |
for (i = 0; i < d->mux_cnt; i++) |
397 |
if (d->chr_event[i])
|
398 |
d->chr_event[i](d->ext_opaque[i], event); |
399 |
} |
400 |
|
401 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
402 |
{ |
403 |
MuxDriver *d = chr->opaque; |
404 |
|
405 |
if (d->mux_cnt >= MAX_MUX) {
|
406 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
407 |
return;
|
408 |
} |
409 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
410 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
411 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
412 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
413 |
/* Fix up the real driver with mux routines */
|
414 |
if (d->mux_cnt == 0) { |
415 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
416 |
mux_chr_event, chr); |
417 |
} |
418 |
chr->focus = d->mux_cnt; |
419 |
d->mux_cnt++; |
420 |
} |
421 |
|
422 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
423 |
{ |
424 |
CharDriverState *chr; |
425 |
MuxDriver *d; |
426 |
|
427 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
428 |
if (!chr)
|
429 |
return NULL; |
430 |
d = qemu_mallocz(sizeof(MuxDriver));
|
431 |
if (!d) {
|
432 |
free(chr); |
433 |
return NULL; |
434 |
} |
435 |
|
436 |
chr->opaque = d; |
437 |
d->drv = drv; |
438 |
chr->focus = -1;
|
439 |
chr->chr_write = mux_chr_write; |
440 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
441 |
chr->chr_accept_input = mux_chr_accept_input; |
442 |
return chr;
|
443 |
} |
444 |
|
445 |
|
446 |
#ifdef _WIN32
|
447 |
int send_all(int fd, const void *buf, int len1) |
448 |
{ |
449 |
int ret, len;
|
450 |
|
451 |
len = len1; |
452 |
while (len > 0) { |
453 |
ret = send(fd, buf, len, 0);
|
454 |
if (ret < 0) { |
455 |
errno = WSAGetLastError(); |
456 |
if (errno != WSAEWOULDBLOCK) {
|
457 |
return -1; |
458 |
} |
459 |
} else if (ret == 0) { |
460 |
break;
|
461 |
} else {
|
462 |
buf += ret; |
463 |
len -= ret; |
464 |
} |
465 |
} |
466 |
return len1 - len;
|
467 |
} |
468 |
|
469 |
#else
|
470 |
|
471 |
static int unix_write(int fd, const uint8_t *buf, int len1) |
472 |
{ |
473 |
int ret, len;
|
474 |
|
475 |
len = len1; |
476 |
while (len > 0) { |
477 |
ret = write(fd, buf, len); |
478 |
if (ret < 0) { |
479 |
if (errno != EINTR && errno != EAGAIN)
|
480 |
return -1; |
481 |
} else if (ret == 0) { |
482 |
break;
|
483 |
} else {
|
484 |
buf += ret; |
485 |
len -= ret; |
486 |
} |
487 |
} |
488 |
return len1 - len;
|
489 |
} |
490 |
|
491 |
int send_all(int fd, const void *buf, int len1) |
492 |
{ |
493 |
return unix_write(fd, buf, len1);
|
494 |
} |
495 |
#endif /* !_WIN32 */ |
496 |
|
497 |
#ifndef _WIN32
|
498 |
|
499 |
typedef struct { |
500 |
int fd_in, fd_out;
|
501 |
int max_size;
|
502 |
} FDCharDriver; |
503 |
|
504 |
#define STDIO_MAX_CLIENTS 1 |
505 |
static int stdio_nb_clients = 0; |
506 |
|
507 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
508 |
{ |
509 |
FDCharDriver *s = chr->opaque; |
510 |
return send_all(s->fd_out, buf, len);
|
511 |
} |
512 |
|
513 |
static int fd_chr_read_poll(void *opaque) |
514 |
{ |
515 |
CharDriverState *chr = opaque; |
516 |
FDCharDriver *s = chr->opaque; |
517 |
|
518 |
s->max_size = qemu_chr_can_read(chr); |
519 |
return s->max_size;
|
520 |
} |
521 |
|
522 |
static void fd_chr_read(void *opaque) |
523 |
{ |
524 |
CharDriverState *chr = opaque; |
525 |
FDCharDriver *s = chr->opaque; |
526 |
int size, len;
|
527 |
uint8_t buf[1024];
|
528 |
|
529 |
len = sizeof(buf);
|
530 |
if (len > s->max_size)
|
531 |
len = s->max_size; |
532 |
if (len == 0) |
533 |
return;
|
534 |
size = read(s->fd_in, buf, len); |
535 |
if (size == 0) { |
536 |
/* FD has been closed. Remove it from the active list. */
|
537 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
538 |
return;
|
539 |
} |
540 |
if (size > 0) { |
541 |
qemu_chr_read(chr, buf, size); |
542 |
} |
543 |
} |
544 |
|
545 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
546 |
{ |
547 |
FDCharDriver *s = chr->opaque; |
548 |
|
549 |
if (s->fd_in >= 0) { |
550 |
if (nographic && s->fd_in == 0) { |
551 |
} else {
|
552 |
qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, |
553 |
fd_chr_read, NULL, chr);
|
554 |
} |
555 |
} |
556 |
} |
557 |
|
558 |
static void fd_chr_close(struct CharDriverState *chr) |
559 |
{ |
560 |
FDCharDriver *s = chr->opaque; |
561 |
|
562 |
if (s->fd_in >= 0) { |
563 |
if (nographic && s->fd_in == 0) { |
564 |
} else {
|
565 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
566 |
} |
567 |
} |
568 |
|
569 |
qemu_free(s); |
570 |
} |
571 |
|
572 |
/* open a character device to a unix fd */
|
573 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
574 |
{ |
575 |
CharDriverState *chr; |
576 |
FDCharDriver *s; |
577 |
|
578 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
579 |
if (!chr)
|
580 |
return NULL; |
581 |
s = qemu_mallocz(sizeof(FDCharDriver));
|
582 |
if (!s) {
|
583 |
free(chr); |
584 |
return NULL; |
585 |
} |
586 |
s->fd_in = fd_in; |
587 |
s->fd_out = fd_out; |
588 |
chr->opaque = s; |
589 |
chr->chr_write = fd_chr_write; |
590 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
591 |
chr->chr_close = fd_chr_close; |
592 |
|
593 |
qemu_chr_reset(chr); |
594 |
|
595 |
return chr;
|
596 |
} |
597 |
|
598 |
static CharDriverState *qemu_chr_open_file_out(const char *file_out) |
599 |
{ |
600 |
int fd_out;
|
601 |
|
602 |
TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
603 |
if (fd_out < 0) |
604 |
return NULL; |
605 |
return qemu_chr_open_fd(-1, fd_out); |
606 |
} |
607 |
|
608 |
static CharDriverState *qemu_chr_open_pipe(const char *filename) |
609 |
{ |
610 |
int fd_in, fd_out;
|
611 |
char filename_in[256], filename_out[256]; |
612 |
|
613 |
snprintf(filename_in, 256, "%s.in", filename); |
614 |
snprintf(filename_out, 256, "%s.out", filename); |
615 |
TFR(fd_in = open(filename_in, O_RDWR | O_BINARY)); |
616 |
TFR(fd_out = open(filename_out, O_RDWR | O_BINARY)); |
617 |
if (fd_in < 0 || fd_out < 0) { |
618 |
if (fd_in >= 0) |
619 |
close(fd_in); |
620 |
if (fd_out >= 0) |
621 |
close(fd_out); |
622 |
TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY)); |
623 |
if (fd_in < 0) |
624 |
return NULL; |
625 |
} |
626 |
return qemu_chr_open_fd(fd_in, fd_out);
|
627 |
} |
628 |
|
629 |
|
630 |
/* for STDIO, we handle the case where several clients use it
|
631 |
(nographic mode) */
|
632 |
|
633 |
#define TERM_FIFO_MAX_SIZE 1 |
634 |
|
635 |
static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
|
636 |
static int term_fifo_size; |
637 |
|
638 |
static int stdio_read_poll(void *opaque) |
639 |
{ |
640 |
CharDriverState *chr = opaque; |
641 |
|
642 |
/* try to flush the queue if needed */
|
643 |
if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) { |
644 |
qemu_chr_read(chr, term_fifo, 1);
|
645 |
term_fifo_size = 0;
|
646 |
} |
647 |
/* see if we can absorb more chars */
|
648 |
if (term_fifo_size == 0) |
649 |
return 1; |
650 |
else
|
651 |
return 0; |
652 |
} |
653 |
|
654 |
static void stdio_read(void *opaque) |
655 |
{ |
656 |
int size;
|
657 |
uint8_t buf[1];
|
658 |
CharDriverState *chr = opaque; |
659 |
|
660 |
size = read(0, buf, 1); |
661 |
if (size == 0) { |
662 |
/* stdin has been closed. Remove it from the active list. */
|
663 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
664 |
return;
|
665 |
} |
666 |
if (size > 0) { |
667 |
if (qemu_chr_can_read(chr) > 0) { |
668 |
qemu_chr_read(chr, buf, 1);
|
669 |
} else if (term_fifo_size == 0) { |
670 |
term_fifo[term_fifo_size++] = buf[0];
|
671 |
} |
672 |
} |
673 |
} |
674 |
|
675 |
/* init terminal so that we can grab keys */
|
676 |
static struct termios oldtty; |
677 |
static int old_fd0_flags; |
678 |
static int term_atexit_done; |
679 |
|
680 |
static void term_exit(void) |
681 |
{ |
682 |
tcsetattr (0, TCSANOW, &oldtty);
|
683 |
fcntl(0, F_SETFL, old_fd0_flags);
|
684 |
} |
685 |
|
686 |
static void term_init(void) |
687 |
{ |
688 |
struct termios tty;
|
689 |
|
690 |
tcgetattr (0, &tty);
|
691 |
oldtty = tty; |
692 |
old_fd0_flags = fcntl(0, F_GETFL);
|
693 |
|
694 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
695 |
|INLCR|IGNCR|ICRNL|IXON); |
696 |
tty.c_oflag |= OPOST; |
697 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
698 |
/* if graphical mode, we allow Ctrl-C handling */
|
699 |
if (nographic)
|
700 |
tty.c_lflag &= ~ISIG; |
701 |
tty.c_cflag &= ~(CSIZE|PARENB); |
702 |
tty.c_cflag |= CS8; |
703 |
tty.c_cc[VMIN] = 1;
|
704 |
tty.c_cc[VTIME] = 0;
|
705 |
|
706 |
tcsetattr (0, TCSANOW, &tty);
|
707 |
|
708 |
if (!term_atexit_done++)
|
709 |
atexit(term_exit); |
710 |
|
711 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
712 |
} |
713 |
|
714 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
715 |
{ |
716 |
term_exit(); |
717 |
stdio_nb_clients--; |
718 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
719 |
fd_chr_close(chr); |
720 |
} |
721 |
|
722 |
static CharDriverState *qemu_chr_open_stdio(void) |
723 |
{ |
724 |
CharDriverState *chr; |
725 |
|
726 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
|
727 |
return NULL; |
728 |
chr = qemu_chr_open_fd(0, 1); |
729 |
chr->chr_close = qemu_chr_close_stdio; |
730 |
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); |
731 |
stdio_nb_clients++; |
732 |
term_init(); |
733 |
|
734 |
return chr;
|
735 |
} |
736 |
|
737 |
#ifdef __sun__
|
738 |
/* Once Solaris has openpty(), this is going to be removed. */
|
739 |
int openpty(int *amaster, int *aslave, char *name, |
740 |
struct termios *termp, struct winsize *winp) |
741 |
{ |
742 |
const char *slave; |
743 |
int mfd = -1, sfd = -1; |
744 |
|
745 |
*amaster = *aslave = -1;
|
746 |
|
747 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
748 |
if (mfd < 0) |
749 |
goto err;
|
750 |
|
751 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
752 |
goto err;
|
753 |
|
754 |
if ((slave = ptsname(mfd)) == NULL) |
755 |
goto err;
|
756 |
|
757 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
758 |
goto err;
|
759 |
|
760 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
761 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
762 |
goto err;
|
763 |
|
764 |
if (amaster)
|
765 |
*amaster = mfd; |
766 |
if (aslave)
|
767 |
*aslave = sfd; |
768 |
if (winp)
|
769 |
ioctl(sfd, TIOCSWINSZ, winp); |
770 |
|
771 |
return 0; |
772 |
|
773 |
err:
|
774 |
if (sfd != -1) |
775 |
close(sfd); |
776 |
close(mfd); |
777 |
return -1; |
778 |
} |
779 |
|
780 |
void cfmakeraw (struct termios *termios_p) |
781 |
{ |
782 |
termios_p->c_iflag &= |
783 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
784 |
termios_p->c_oflag &= ~OPOST; |
785 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
786 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
787 |
termios_p->c_cflag |= CS8; |
788 |
|
789 |
termios_p->c_cc[VMIN] = 0;
|
790 |
termios_p->c_cc[VTIME] = 0;
|
791 |
} |
792 |
#endif
|
793 |
|
794 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
795 |
|| defined(__NetBSD__) || defined(__OpenBSD__) |
796 |
|
797 |
typedef struct { |
798 |
int fd;
|
799 |
int connected;
|
800 |
int polling;
|
801 |
int read_bytes;
|
802 |
QEMUTimer *timer; |
803 |
} PtyCharDriver; |
804 |
|
805 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
806 |
static void pty_chr_state(CharDriverState *chr, int connected); |
807 |
|
808 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
809 |
{ |
810 |
PtyCharDriver *s = chr->opaque; |
811 |
|
812 |
if (!s->connected) {
|
813 |
/* guest sends data, check for (re-)connect */
|
814 |
pty_chr_update_read_handler(chr); |
815 |
return 0; |
816 |
} |
817 |
return send_all(s->fd, buf, len);
|
818 |
} |
819 |
|
820 |
static int pty_chr_read_poll(void *opaque) |
821 |
{ |
822 |
CharDriverState *chr = opaque; |
823 |
PtyCharDriver *s = chr->opaque; |
824 |
|
825 |
s->read_bytes = qemu_chr_can_read(chr); |
826 |
return s->read_bytes;
|
827 |
} |
828 |
|
829 |
static void pty_chr_read(void *opaque) |
830 |
{ |
831 |
CharDriverState *chr = opaque; |
832 |
PtyCharDriver *s = chr->opaque; |
833 |
int size, len;
|
834 |
uint8_t buf[1024];
|
835 |
|
836 |
len = sizeof(buf);
|
837 |
if (len > s->read_bytes)
|
838 |
len = s->read_bytes; |
839 |
if (len == 0) |
840 |
return;
|
841 |
size = read(s->fd, buf, len); |
842 |
if ((size == -1 && errno == EIO) || |
843 |
(size == 0)) {
|
844 |
pty_chr_state(chr, 0);
|
845 |
return;
|
846 |
} |
847 |
if (size > 0) { |
848 |
pty_chr_state(chr, 1);
|
849 |
qemu_chr_read(chr, buf, size); |
850 |
} |
851 |
} |
852 |
|
853 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
854 |
{ |
855 |
PtyCharDriver *s = chr->opaque; |
856 |
|
857 |
qemu_set_fd_handler2(s->fd, pty_chr_read_poll, |
858 |
pty_chr_read, NULL, chr);
|
859 |
s->polling = 1;
|
860 |
/*
|
861 |
* Short timeout here: just need wait long enougth that qemu makes
|
862 |
* it through the poll loop once. When reconnected we want a
|
863 |
* short timeout so we notice it almost instantly. Otherwise
|
864 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
865 |
* timeout to the normal (much longer) poll interval before the
|
866 |
* timer triggers.
|
867 |
*/
|
868 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
|
869 |
} |
870 |
|
871 |
static void pty_chr_state(CharDriverState *chr, int connected) |
872 |
{ |
873 |
PtyCharDriver *s = chr->opaque; |
874 |
|
875 |
if (!connected) {
|
876 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
877 |
s->connected = 0;
|
878 |
s->polling = 0;
|
879 |
/* (re-)connect poll interval for idle guests: once per second.
|
880 |
* We check more frequently in case the guests sends data to
|
881 |
* the virtual device linked to our pty. */
|
882 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
|
883 |
} else {
|
884 |
if (!s->connected)
|
885 |
qemu_chr_reset(chr); |
886 |
s->connected = 1;
|
887 |
} |
888 |
} |
889 |
|
890 |
static void pty_chr_timer(void *opaque) |
891 |
{ |
892 |
struct CharDriverState *chr = opaque;
|
893 |
PtyCharDriver *s = chr->opaque; |
894 |
|
895 |
if (s->connected)
|
896 |
return;
|
897 |
if (s->polling) {
|
898 |
/* If we arrive here without polling being cleared due
|
899 |
* read returning -EIO, then we are (re-)connected */
|
900 |
pty_chr_state(chr, 1);
|
901 |
return;
|
902 |
} |
903 |
|
904 |
/* Next poll ... */
|
905 |
pty_chr_update_read_handler(chr); |
906 |
} |
907 |
|
908 |
static void pty_chr_close(struct CharDriverState *chr) |
909 |
{ |
910 |
PtyCharDriver *s = chr->opaque; |
911 |
|
912 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
913 |
close(s->fd); |
914 |
qemu_free(s); |
915 |
} |
916 |
|
917 |
static CharDriverState *qemu_chr_open_pty(void) |
918 |
{ |
919 |
CharDriverState *chr; |
920 |
PtyCharDriver *s; |
921 |
struct termios tty;
|
922 |
int slave_fd, len;
|
923 |
#if defined(__OpenBSD__)
|
924 |
char pty_name[PATH_MAX];
|
925 |
#define q_ptsname(x) pty_name
|
926 |
#else
|
927 |
char *pty_name = NULL; |
928 |
#define q_ptsname(x) ptsname(x)
|
929 |
#endif
|
930 |
|
931 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
932 |
if (!chr)
|
933 |
return NULL; |
934 |
s = qemu_mallocz(sizeof(PtyCharDriver));
|
935 |
if (!s) {
|
936 |
qemu_free(chr); |
937 |
return NULL; |
938 |
} |
939 |
|
940 |
if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
941 |
return NULL; |
942 |
} |
943 |
|
944 |
/* Set raw attributes on the pty. */
|
945 |
tcgetattr(slave_fd, &tty); |
946 |
cfmakeraw(&tty); |
947 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
948 |
close(slave_fd); |
949 |
|
950 |
len = strlen(q_ptsname(s->fd)) + 5;
|
951 |
chr->filename = qemu_malloc(len); |
952 |
snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
|
953 |
fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
|
954 |
|
955 |
chr->opaque = s; |
956 |
chr->chr_write = pty_chr_write; |
957 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
958 |
chr->chr_close = pty_chr_close; |
959 |
|
960 |
s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr); |
961 |
|
962 |
return chr;
|
963 |
} |
964 |
|
965 |
static void tty_serial_init(int fd, int speed, |
966 |
int parity, int data_bits, int stop_bits) |
967 |
{ |
968 |
struct termios tty;
|
969 |
speed_t spd; |
970 |
|
971 |
#if 0
|
972 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
973 |
speed, parity, data_bits, stop_bits);
|
974 |
#endif
|
975 |
tcgetattr (fd, &tty); |
976 |
|
977 |
#define MARGIN 1.1 |
978 |
if (speed <= 50 * MARGIN) |
979 |
spd = B50; |
980 |
else if (speed <= 75 * MARGIN) |
981 |
spd = B75; |
982 |
else if (speed <= 300 * MARGIN) |
983 |
spd = B300; |
984 |
else if (speed <= 600 * MARGIN) |
985 |
spd = B600; |
986 |
else if (speed <= 1200 * MARGIN) |
987 |
spd = B1200; |
988 |
else if (speed <= 2400 * MARGIN) |
989 |
spd = B2400; |
990 |
else if (speed <= 4800 * MARGIN) |
991 |
spd = B4800; |
992 |
else if (speed <= 9600 * MARGIN) |
993 |
spd = B9600; |
994 |
else if (speed <= 19200 * MARGIN) |
995 |
spd = B19200; |
996 |
else if (speed <= 38400 * MARGIN) |
997 |
spd = B38400; |
998 |
else if (speed <= 57600 * MARGIN) |
999 |
spd = B57600; |
1000 |
else if (speed <= 115200 * MARGIN) |
1001 |
spd = B115200; |
1002 |
else
|
1003 |
spd = B115200; |
1004 |
|
1005 |
cfsetispeed(&tty, spd); |
1006 |
cfsetospeed(&tty, spd); |
1007 |
|
1008 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
1009 |
|INLCR|IGNCR|ICRNL|IXON); |
1010 |
tty.c_oflag |= OPOST; |
1011 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
1012 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
1013 |
switch(data_bits) {
|
1014 |
default:
|
1015 |
case 8: |
1016 |
tty.c_cflag |= CS8; |
1017 |
break;
|
1018 |
case 7: |
1019 |
tty.c_cflag |= CS7; |
1020 |
break;
|
1021 |
case 6: |
1022 |
tty.c_cflag |= CS6; |
1023 |
break;
|
1024 |
case 5: |
1025 |
tty.c_cflag |= CS5; |
1026 |
break;
|
1027 |
} |
1028 |
switch(parity) {
|
1029 |
default:
|
1030 |
case 'N': |
1031 |
break;
|
1032 |
case 'E': |
1033 |
tty.c_cflag |= PARENB; |
1034 |
break;
|
1035 |
case 'O': |
1036 |
tty.c_cflag |= PARENB | PARODD; |
1037 |
break;
|
1038 |
} |
1039 |
if (stop_bits == 2) |
1040 |
tty.c_cflag |= CSTOPB; |
1041 |
|
1042 |
tcsetattr (fd, TCSANOW, &tty); |
1043 |
} |
1044 |
|
1045 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
1046 |
{ |
1047 |
FDCharDriver *s = chr->opaque; |
1048 |
|
1049 |
switch(cmd) {
|
1050 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
1051 |
{ |
1052 |
QEMUSerialSetParams *ssp = arg; |
1053 |
tty_serial_init(s->fd_in, ssp->speed, ssp->parity, |
1054 |
ssp->data_bits, ssp->stop_bits); |
1055 |
} |
1056 |
break;
|
1057 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
1058 |
{ |
1059 |
int enable = *(int *)arg; |
1060 |
if (enable)
|
1061 |
tcsendbreak(s->fd_in, 1);
|
1062 |
} |
1063 |
break;
|
1064 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
1065 |
{ |
1066 |
int sarg = 0; |
1067 |
int *targ = (int *)arg; |
1068 |
ioctl(s->fd_in, TIOCMGET, &sarg); |
1069 |
*targ = 0;
|
1070 |
if (sarg | TIOCM_CTS)
|
1071 |
*targ |= CHR_TIOCM_CTS; |
1072 |
if (sarg | TIOCM_CAR)
|
1073 |
*targ |= CHR_TIOCM_CAR; |
1074 |
if (sarg | TIOCM_DSR)
|
1075 |
*targ |= CHR_TIOCM_DSR; |
1076 |
if (sarg | TIOCM_RI)
|
1077 |
*targ |= CHR_TIOCM_RI; |
1078 |
if (sarg | TIOCM_DTR)
|
1079 |
*targ |= CHR_TIOCM_DTR; |
1080 |
if (sarg | TIOCM_RTS)
|
1081 |
*targ |= CHR_TIOCM_RTS; |
1082 |
} |
1083 |
break;
|
1084 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
1085 |
{ |
1086 |
int sarg = *(int *)arg; |
1087 |
int targ = 0; |
1088 |
if (sarg | CHR_TIOCM_DTR)
|
1089 |
targ |= TIOCM_DTR; |
1090 |
if (sarg | CHR_TIOCM_RTS)
|
1091 |
targ |= TIOCM_RTS; |
1092 |
ioctl(s->fd_in, TIOCMSET, &targ); |
1093 |
} |
1094 |
break;
|
1095 |
default:
|
1096 |
return -ENOTSUP;
|
1097 |
} |
1098 |
return 0; |
1099 |
} |
1100 |
|
1101 |
static CharDriverState *qemu_chr_open_tty(const char *filename) |
1102 |
{ |
1103 |
CharDriverState *chr; |
1104 |
int fd;
|
1105 |
|
1106 |
TFR(fd = open(filename, O_RDWR | O_NONBLOCK)); |
1107 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
1108 |
chr = qemu_chr_open_fd(fd, fd); |
1109 |
if (!chr) {
|
1110 |
close(fd); |
1111 |
return NULL; |
1112 |
} |
1113 |
chr->chr_ioctl = tty_serial_ioctl; |
1114 |
qemu_chr_reset(chr); |
1115 |
return chr;
|
1116 |
} |
1117 |
#else /* ! __linux__ && ! __sun__ */ |
1118 |
static CharDriverState *qemu_chr_open_pty(void) |
1119 |
{ |
1120 |
return NULL; |
1121 |
} |
1122 |
#endif /* __linux__ || __sun__ */ |
1123 |
|
1124 |
#if defined(__linux__)
|
1125 |
typedef struct { |
1126 |
int fd;
|
1127 |
int mode;
|
1128 |
} ParallelCharDriver; |
1129 |
|
1130 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
1131 |
{ |
1132 |
if (s->mode != mode) {
|
1133 |
int m = mode;
|
1134 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
1135 |
return 0; |
1136 |
s->mode = mode; |
1137 |
} |
1138 |
return 1; |
1139 |
} |
1140 |
|
1141 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1142 |
{ |
1143 |
ParallelCharDriver *drv = chr->opaque; |
1144 |
int fd = drv->fd;
|
1145 |
uint8_t b; |
1146 |
|
1147 |
switch(cmd) {
|
1148 |
case CHR_IOCTL_PP_READ_DATA:
|
1149 |
if (ioctl(fd, PPRDATA, &b) < 0) |
1150 |
return -ENOTSUP;
|
1151 |
*(uint8_t *)arg = b; |
1152 |
break;
|
1153 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1154 |
b = *(uint8_t *)arg; |
1155 |
if (ioctl(fd, PPWDATA, &b) < 0) |
1156 |
return -ENOTSUP;
|
1157 |
break;
|
1158 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1159 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
1160 |
return -ENOTSUP;
|
1161 |
/* Linux gives only the lowest bits, and no way to know data
|
1162 |
direction! For better compatibility set the fixed upper
|
1163 |
bits. */
|
1164 |
*(uint8_t *)arg = b | 0xc0;
|
1165 |
break;
|
1166 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1167 |
b = *(uint8_t *)arg; |
1168 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
1169 |
return -ENOTSUP;
|
1170 |
break;
|
1171 |
case CHR_IOCTL_PP_READ_STATUS:
|
1172 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
1173 |
return -ENOTSUP;
|
1174 |
*(uint8_t *)arg = b; |
1175 |
break;
|
1176 |
case CHR_IOCTL_PP_DATA_DIR:
|
1177 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
1178 |
return -ENOTSUP;
|
1179 |
break;
|
1180 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
1181 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1182 |
struct ParallelIOArg *parg = arg;
|
1183 |
int n = read(fd, parg->buffer, parg->count);
|
1184 |
if (n != parg->count) {
|
1185 |
return -EIO;
|
1186 |
} |
1187 |
} |
1188 |
break;
|
1189 |
case CHR_IOCTL_PP_EPP_READ:
|
1190 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1191 |
struct ParallelIOArg *parg = arg;
|
1192 |
int n = read(fd, parg->buffer, parg->count);
|
1193 |
if (n != parg->count) {
|
1194 |
return -EIO;
|
1195 |
} |
1196 |
} |
1197 |
break;
|
1198 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
1199 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
1200 |
struct ParallelIOArg *parg = arg;
|
1201 |
int n = write(fd, parg->buffer, parg->count);
|
1202 |
if (n != parg->count) {
|
1203 |
return -EIO;
|
1204 |
} |
1205 |
} |
1206 |
break;
|
1207 |
case CHR_IOCTL_PP_EPP_WRITE:
|
1208 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
1209 |
struct ParallelIOArg *parg = arg;
|
1210 |
int n = write(fd, parg->buffer, parg->count);
|
1211 |
if (n != parg->count) {
|
1212 |
return -EIO;
|
1213 |
} |
1214 |
} |
1215 |
break;
|
1216 |
default:
|
1217 |
return -ENOTSUP;
|
1218 |
} |
1219 |
return 0; |
1220 |
} |
1221 |
|
1222 |
static void pp_close(CharDriverState *chr) |
1223 |
{ |
1224 |
ParallelCharDriver *drv = chr->opaque; |
1225 |
int fd = drv->fd;
|
1226 |
|
1227 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
1228 |
ioctl(fd, PPRELEASE); |
1229 |
close(fd); |
1230 |
qemu_free(drv); |
1231 |
} |
1232 |
|
1233 |
static CharDriverState *qemu_chr_open_pp(const char *filename) |
1234 |
{ |
1235 |
CharDriverState *chr; |
1236 |
ParallelCharDriver *drv; |
1237 |
int fd;
|
1238 |
|
1239 |
TFR(fd = open(filename, O_RDWR)); |
1240 |
if (fd < 0) |
1241 |
return NULL; |
1242 |
|
1243 |
if (ioctl(fd, PPCLAIM) < 0) { |
1244 |
close(fd); |
1245 |
return NULL; |
1246 |
} |
1247 |
|
1248 |
drv = qemu_mallocz(sizeof(ParallelCharDriver));
|
1249 |
if (!drv) {
|
1250 |
close(fd); |
1251 |
return NULL; |
1252 |
} |
1253 |
drv->fd = fd; |
1254 |
drv->mode = IEEE1284_MODE_COMPAT; |
1255 |
|
1256 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1257 |
if (!chr) {
|
1258 |
qemu_free(drv); |
1259 |
close(fd); |
1260 |
return NULL; |
1261 |
} |
1262 |
chr->chr_write = null_chr_write; |
1263 |
chr->chr_ioctl = pp_ioctl; |
1264 |
chr->chr_close = pp_close; |
1265 |
chr->opaque = drv; |
1266 |
|
1267 |
qemu_chr_reset(chr); |
1268 |
|
1269 |
return chr;
|
1270 |
} |
1271 |
#endif /* __linux__ */ |
1272 |
|
1273 |
#if defined(__FreeBSD__)
|
1274 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
1275 |
{ |
1276 |
int fd = (int)chr->opaque; |
1277 |
uint8_t b; |
1278 |
|
1279 |
switch(cmd) {
|
1280 |
case CHR_IOCTL_PP_READ_DATA:
|
1281 |
if (ioctl(fd, PPIGDATA, &b) < 0) |
1282 |
return -ENOTSUP;
|
1283 |
*(uint8_t *)arg = b; |
1284 |
break;
|
1285 |
case CHR_IOCTL_PP_WRITE_DATA:
|
1286 |
b = *(uint8_t *)arg; |
1287 |
if (ioctl(fd, PPISDATA, &b) < 0) |
1288 |
return -ENOTSUP;
|
1289 |
break;
|
1290 |
case CHR_IOCTL_PP_READ_CONTROL:
|
1291 |
if (ioctl(fd, PPIGCTRL, &b) < 0) |
1292 |
return -ENOTSUP;
|
1293 |
*(uint8_t *)arg = b; |
1294 |
break;
|
1295 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
1296 |
b = *(uint8_t *)arg; |
1297 |
if (ioctl(fd, PPISCTRL, &b) < 0) |
1298 |
return -ENOTSUP;
|
1299 |
break;
|
1300 |
case CHR_IOCTL_PP_READ_STATUS:
|
1301 |
if (ioctl(fd, PPIGSTATUS, &b) < 0) |
1302 |
return -ENOTSUP;
|
1303 |
*(uint8_t *)arg = b; |
1304 |
break;
|
1305 |
default:
|
1306 |
return -ENOTSUP;
|
1307 |
} |
1308 |
return 0; |
1309 |
} |
1310 |
|
1311 |
static CharDriverState *qemu_chr_open_pp(const char *filename) |
1312 |
{ |
1313 |
CharDriverState *chr; |
1314 |
int fd;
|
1315 |
|
1316 |
fd = open(filename, O_RDWR); |
1317 |
if (fd < 0) |
1318 |
return NULL; |
1319 |
|
1320 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1321 |
if (!chr) {
|
1322 |
close(fd); |
1323 |
return NULL; |
1324 |
} |
1325 |
chr->opaque = (void *)fd;
|
1326 |
chr->chr_write = null_chr_write; |
1327 |
chr->chr_ioctl = pp_ioctl; |
1328 |
return chr;
|
1329 |
} |
1330 |
#endif
|
1331 |
|
1332 |
#else /* _WIN32 */ |
1333 |
|
1334 |
typedef struct { |
1335 |
int max_size;
|
1336 |
HANDLE hcom, hrecv, hsend; |
1337 |
OVERLAPPED orecv, osend; |
1338 |
BOOL fpipe; |
1339 |
DWORD len; |
1340 |
} WinCharState; |
1341 |
|
1342 |
#define NSENDBUF 2048 |
1343 |
#define NRECVBUF 2048 |
1344 |
#define MAXCONNECT 1 |
1345 |
#define NTIMEOUT 5000 |
1346 |
|
1347 |
static int win_chr_poll(void *opaque); |
1348 |
static int win_chr_pipe_poll(void *opaque); |
1349 |
|
1350 |
static void win_chr_close(CharDriverState *chr) |
1351 |
{ |
1352 |
WinCharState *s = chr->opaque; |
1353 |
|
1354 |
if (s->hsend) {
|
1355 |
CloseHandle(s->hsend); |
1356 |
s->hsend = NULL;
|
1357 |
} |
1358 |
if (s->hrecv) {
|
1359 |
CloseHandle(s->hrecv); |
1360 |
s->hrecv = NULL;
|
1361 |
} |
1362 |
if (s->hcom) {
|
1363 |
CloseHandle(s->hcom); |
1364 |
s->hcom = NULL;
|
1365 |
} |
1366 |
if (s->fpipe)
|
1367 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
1368 |
else
|
1369 |
qemu_del_polling_cb(win_chr_poll, chr); |
1370 |
} |
1371 |
|
1372 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
1373 |
{ |
1374 |
WinCharState *s = chr->opaque; |
1375 |
COMMCONFIG comcfg; |
1376 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; |
1377 |
COMSTAT comstat; |
1378 |
DWORD size; |
1379 |
DWORD err; |
1380 |
|
1381 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1382 |
if (!s->hsend) {
|
1383 |
fprintf(stderr, "Failed CreateEvent\n");
|
1384 |
goto fail;
|
1385 |
} |
1386 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1387 |
if (!s->hrecv) {
|
1388 |
fprintf(stderr, "Failed CreateEvent\n");
|
1389 |
goto fail;
|
1390 |
} |
1391 |
|
1392 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
1393 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
1394 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1395 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
1396 |
s->hcom = NULL;
|
1397 |
goto fail;
|
1398 |
} |
1399 |
|
1400 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
1401 |
fprintf(stderr, "Failed SetupComm\n");
|
1402 |
goto fail;
|
1403 |
} |
1404 |
|
1405 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
1406 |
size = sizeof(COMMCONFIG);
|
1407 |
GetDefaultCommConfig(filename, &comcfg, &size); |
1408 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
1409 |
CommConfigDialog(filename, NULL, &comcfg);
|
1410 |
|
1411 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
1412 |
fprintf(stderr, "Failed SetCommState\n");
|
1413 |
goto fail;
|
1414 |
} |
1415 |
|
1416 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
1417 |
fprintf(stderr, "Failed SetCommMask\n");
|
1418 |
goto fail;
|
1419 |
} |
1420 |
|
1421 |
cto.ReadIntervalTimeout = MAXDWORD; |
1422 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
1423 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
1424 |
goto fail;
|
1425 |
} |
1426 |
|
1427 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
1428 |
fprintf(stderr, "Failed ClearCommError\n");
|
1429 |
goto fail;
|
1430 |
} |
1431 |
qemu_add_polling_cb(win_chr_poll, chr); |
1432 |
return 0; |
1433 |
|
1434 |
fail:
|
1435 |
win_chr_close(chr); |
1436 |
return -1; |
1437 |
} |
1438 |
|
1439 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
1440 |
{ |
1441 |
WinCharState *s = chr->opaque; |
1442 |
DWORD len, ret, size, err; |
1443 |
|
1444 |
len = len1; |
1445 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
1446 |
s->osend.hEvent = s->hsend; |
1447 |
while (len > 0) { |
1448 |
if (s->hsend)
|
1449 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
1450 |
else
|
1451 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
1452 |
if (!ret) {
|
1453 |
err = GetLastError(); |
1454 |
if (err == ERROR_IO_PENDING) {
|
1455 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
1456 |
if (ret) {
|
1457 |
buf += size; |
1458 |
len -= size; |
1459 |
} else {
|
1460 |
break;
|
1461 |
} |
1462 |
} else {
|
1463 |
break;
|
1464 |
} |
1465 |
} else {
|
1466 |
buf += size; |
1467 |
len -= size; |
1468 |
} |
1469 |
} |
1470 |
return len1 - len;
|
1471 |
} |
1472 |
|
1473 |
static int win_chr_read_poll(CharDriverState *chr) |
1474 |
{ |
1475 |
WinCharState *s = chr->opaque; |
1476 |
|
1477 |
s->max_size = qemu_chr_can_read(chr); |
1478 |
return s->max_size;
|
1479 |
} |
1480 |
|
1481 |
static void win_chr_readfile(CharDriverState *chr) |
1482 |
{ |
1483 |
WinCharState *s = chr->opaque; |
1484 |
int ret, err;
|
1485 |
uint8_t buf[1024];
|
1486 |
DWORD size; |
1487 |
|
1488 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
1489 |
s->orecv.hEvent = s->hrecv; |
1490 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
1491 |
if (!ret) {
|
1492 |
err = GetLastError(); |
1493 |
if (err == ERROR_IO_PENDING) {
|
1494 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
1495 |
} |
1496 |
} |
1497 |
|
1498 |
if (size > 0) { |
1499 |
qemu_chr_read(chr, buf, size); |
1500 |
} |
1501 |
} |
1502 |
|
1503 |
static void win_chr_read(CharDriverState *chr) |
1504 |
{ |
1505 |
WinCharState *s = chr->opaque; |
1506 |
|
1507 |
if (s->len > s->max_size)
|
1508 |
s->len = s->max_size; |
1509 |
if (s->len == 0) |
1510 |
return;
|
1511 |
|
1512 |
win_chr_readfile(chr); |
1513 |
} |
1514 |
|
1515 |
static int win_chr_poll(void *opaque) |
1516 |
{ |
1517 |
CharDriverState *chr = opaque; |
1518 |
WinCharState *s = chr->opaque; |
1519 |
COMSTAT status; |
1520 |
DWORD comerr; |
1521 |
|
1522 |
ClearCommError(s->hcom, &comerr, &status); |
1523 |
if (status.cbInQue > 0) { |
1524 |
s->len = status.cbInQue; |
1525 |
win_chr_read_poll(chr); |
1526 |
win_chr_read(chr); |
1527 |
return 1; |
1528 |
} |
1529 |
return 0; |
1530 |
} |
1531 |
|
1532 |
static CharDriverState *qemu_chr_open_win(const char *filename) |
1533 |
{ |
1534 |
CharDriverState *chr; |
1535 |
WinCharState *s; |
1536 |
|
1537 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1538 |
if (!chr)
|
1539 |
return NULL; |
1540 |
s = qemu_mallocz(sizeof(WinCharState));
|
1541 |
if (!s) {
|
1542 |
free(chr); |
1543 |
return NULL; |
1544 |
} |
1545 |
chr->opaque = s; |
1546 |
chr->chr_write = win_chr_write; |
1547 |
chr->chr_close = win_chr_close; |
1548 |
|
1549 |
if (win_chr_init(chr, filename) < 0) { |
1550 |
free(s); |
1551 |
free(chr); |
1552 |
return NULL; |
1553 |
} |
1554 |
qemu_chr_reset(chr); |
1555 |
return chr;
|
1556 |
} |
1557 |
|
1558 |
static int win_chr_pipe_poll(void *opaque) |
1559 |
{ |
1560 |
CharDriverState *chr = opaque; |
1561 |
WinCharState *s = chr->opaque; |
1562 |
DWORD size; |
1563 |
|
1564 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
1565 |
if (size > 0) { |
1566 |
s->len = size; |
1567 |
win_chr_read_poll(chr); |
1568 |
win_chr_read(chr); |
1569 |
return 1; |
1570 |
} |
1571 |
return 0; |
1572 |
} |
1573 |
|
1574 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
1575 |
{ |
1576 |
WinCharState *s = chr->opaque; |
1577 |
OVERLAPPED ov; |
1578 |
int ret;
|
1579 |
DWORD size; |
1580 |
char openname[256]; |
1581 |
|
1582 |
s->fpipe = TRUE; |
1583 |
|
1584 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
1585 |
if (!s->hsend) {
|
1586 |
fprintf(stderr, "Failed CreateEvent\n");
|
1587 |
goto fail;
|
1588 |
} |
1589 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
1590 |
if (!s->hrecv) {
|
1591 |
fprintf(stderr, "Failed CreateEvent\n");
|
1592 |
goto fail;
|
1593 |
} |
1594 |
|
1595 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
1596 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
1597 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
1598 |
PIPE_WAIT, |
1599 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
1600 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
1601 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
1602 |
s->hcom = NULL;
|
1603 |
goto fail;
|
1604 |
} |
1605 |
|
1606 |
ZeroMemory(&ov, sizeof(ov));
|
1607 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
1608 |
ret = ConnectNamedPipe(s->hcom, &ov); |
1609 |
if (ret) {
|
1610 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
1611 |
goto fail;
|
1612 |
} |
1613 |
|
1614 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
1615 |
if (!ret) {
|
1616 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
1617 |
if (ov.hEvent) {
|
1618 |
CloseHandle(ov.hEvent); |
1619 |
ov.hEvent = NULL;
|
1620 |
} |
1621 |
goto fail;
|
1622 |
} |
1623 |
|
1624 |
if (ov.hEvent) {
|
1625 |
CloseHandle(ov.hEvent); |
1626 |
ov.hEvent = NULL;
|
1627 |
} |
1628 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
1629 |
return 0; |
1630 |
|
1631 |
fail:
|
1632 |
win_chr_close(chr); |
1633 |
return -1; |
1634 |
} |
1635 |
|
1636 |
|
1637 |
static CharDriverState *qemu_chr_open_win_pipe(const char *filename) |
1638 |
{ |
1639 |
CharDriverState *chr; |
1640 |
WinCharState *s; |
1641 |
|
1642 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1643 |
if (!chr)
|
1644 |
return NULL; |
1645 |
s = qemu_mallocz(sizeof(WinCharState));
|
1646 |
if (!s) {
|
1647 |
free(chr); |
1648 |
return NULL; |
1649 |
} |
1650 |
chr->opaque = s; |
1651 |
chr->chr_write = win_chr_write; |
1652 |
chr->chr_close = win_chr_close; |
1653 |
|
1654 |
if (win_chr_pipe_init(chr, filename) < 0) { |
1655 |
free(s); |
1656 |
free(chr); |
1657 |
return NULL; |
1658 |
} |
1659 |
qemu_chr_reset(chr); |
1660 |
return chr;
|
1661 |
} |
1662 |
|
1663 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
1664 |
{ |
1665 |
CharDriverState *chr; |
1666 |
WinCharState *s; |
1667 |
|
1668 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1669 |
if (!chr)
|
1670 |
return NULL; |
1671 |
s = qemu_mallocz(sizeof(WinCharState));
|
1672 |
if (!s) {
|
1673 |
free(chr); |
1674 |
return NULL; |
1675 |
} |
1676 |
s->hcom = fd_out; |
1677 |
chr->opaque = s; |
1678 |
chr->chr_write = win_chr_write; |
1679 |
qemu_chr_reset(chr); |
1680 |
return chr;
|
1681 |
} |
1682 |
|
1683 |
static CharDriverState *qemu_chr_open_win_con(const char *filename) |
1684 |
{ |
1685 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
1686 |
} |
1687 |
|
1688 |
static CharDriverState *qemu_chr_open_win_file_out(const char *file_out) |
1689 |
{ |
1690 |
HANDLE fd_out; |
1691 |
|
1692 |
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
1693 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
1694 |
if (fd_out == INVALID_HANDLE_VALUE)
|
1695 |
return NULL; |
1696 |
|
1697 |
return qemu_chr_open_win_file(fd_out);
|
1698 |
} |
1699 |
#endif /* !_WIN32 */ |
1700 |
|
1701 |
/***********************************************************/
|
1702 |
/* UDP Net console */
|
1703 |
|
1704 |
typedef struct { |
1705 |
int fd;
|
1706 |
struct sockaddr_in daddr;
|
1707 |
uint8_t buf[1024];
|
1708 |
int bufcnt;
|
1709 |
int bufptr;
|
1710 |
int max_size;
|
1711 |
} NetCharDriver; |
1712 |
|
1713 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
1714 |
{ |
1715 |
NetCharDriver *s = chr->opaque; |
1716 |
|
1717 |
return sendto(s->fd, buf, len, 0, |
1718 |
(struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in)); |
1719 |
} |
1720 |
|
1721 |
static int udp_chr_read_poll(void *opaque) |
1722 |
{ |
1723 |
CharDriverState *chr = opaque; |
1724 |
NetCharDriver *s = chr->opaque; |
1725 |
|
1726 |
s->max_size = qemu_chr_can_read(chr); |
1727 |
|
1728 |
/* If there were any stray characters in the queue process them
|
1729 |
* first
|
1730 |
*/
|
1731 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
1732 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
1733 |
s->bufptr++; |
1734 |
s->max_size = qemu_chr_can_read(chr); |
1735 |
} |
1736 |
return s->max_size;
|
1737 |
} |
1738 |
|
1739 |
static void udp_chr_read(void *opaque) |
1740 |
{ |
1741 |
CharDriverState *chr = opaque; |
1742 |
NetCharDriver *s = chr->opaque; |
1743 |
|
1744 |
if (s->max_size == 0) |
1745 |
return;
|
1746 |
s->bufcnt = recv(s->fd, s->buf, sizeof(s->buf), 0); |
1747 |
s->bufptr = s->bufcnt; |
1748 |
if (s->bufcnt <= 0) |
1749 |
return;
|
1750 |
|
1751 |
s->bufptr = 0;
|
1752 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
1753 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
1754 |
s->bufptr++; |
1755 |
s->max_size = qemu_chr_can_read(chr); |
1756 |
} |
1757 |
} |
1758 |
|
1759 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
1760 |
{ |
1761 |
NetCharDriver *s = chr->opaque; |
1762 |
|
1763 |
if (s->fd >= 0) { |
1764 |
qemu_set_fd_handler2(s->fd, udp_chr_read_poll, |
1765 |
udp_chr_read, NULL, chr);
|
1766 |
} |
1767 |
} |
1768 |
|
1769 |
static CharDriverState *qemu_chr_open_udp(const char *def) |
1770 |
{ |
1771 |
CharDriverState *chr = NULL;
|
1772 |
NetCharDriver *s = NULL;
|
1773 |
int fd = -1; |
1774 |
struct sockaddr_in saddr;
|
1775 |
|
1776 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
1777 |
if (!chr)
|
1778 |
goto return_err;
|
1779 |
s = qemu_mallocz(sizeof(NetCharDriver));
|
1780 |
if (!s)
|
1781 |
goto return_err;
|
1782 |
|
1783 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
1784 |
if (fd < 0) { |
1785 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
1786 |
goto return_err;
|
1787 |
} |
1788 |
|
1789 |
if (parse_host_src_port(&s->daddr, &saddr, def) < 0) { |
1790 |
printf("Could not parse: %s\n", def);
|
1791 |
goto return_err;
|
1792 |
} |
1793 |
|
1794 |
if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0) |
1795 |
{ |
1796 |
perror("bind");
|
1797 |
goto return_err;
|
1798 |
} |
1799 |
|
1800 |
s->fd = fd; |
1801 |
s->bufcnt = 0;
|
1802 |
s->bufptr = 0;
|
1803 |
chr->opaque = s; |
1804 |
chr->chr_write = udp_chr_write; |
1805 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
1806 |
return chr;
|
1807 |
|
1808 |
return_err:
|
1809 |
if (chr)
|
1810 |
free(chr); |
1811 |
if (s)
|
1812 |
free(s); |
1813 |
if (fd >= 0) |
1814 |
closesocket(fd); |
1815 |
return NULL; |
1816 |
} |
1817 |
|
1818 |
/***********************************************************/
|
1819 |
/* TCP Net console */
|
1820 |
|
1821 |
typedef struct { |
1822 |
int fd, listen_fd;
|
1823 |
int connected;
|
1824 |
int max_size;
|
1825 |
int do_telnetopt;
|
1826 |
int do_nodelay;
|
1827 |
int is_unix;
|
1828 |
} TCPCharDriver; |
1829 |
|
1830 |
static void tcp_chr_accept(void *opaque); |
1831 |
|
1832 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
1833 |
{ |
1834 |
TCPCharDriver *s = chr->opaque; |
1835 |
if (s->connected) {
|
1836 |
return send_all(s->fd, buf, len);
|
1837 |
} else {
|
1838 |
/* XXX: indicate an error ? */
|
1839 |
return len;
|
1840 |
} |
1841 |
} |
1842 |
|
1843 |
static int tcp_chr_read_poll(void *opaque) |
1844 |
{ |
1845 |
CharDriverState *chr = opaque; |
1846 |
TCPCharDriver *s = chr->opaque; |
1847 |
if (!s->connected)
|
1848 |
return 0; |
1849 |
s->max_size = qemu_chr_can_read(chr); |
1850 |
return s->max_size;
|
1851 |
} |
1852 |
|
1853 |
#define IAC 255 |
1854 |
#define IAC_BREAK 243 |
1855 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
1856 |
TCPCharDriver *s, |
1857 |
uint8_t *buf, int *size)
|
1858 |
{ |
1859 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
1860 |
* char mode with no echo. All IAC options will be removed from
|
1861 |
* the buf and the do_telnetopt variable will be used to track the
|
1862 |
* state of the width of the IAC information.
|
1863 |
*
|
1864 |
* IAC commands come in sets of 3 bytes with the exception of the
|
1865 |
* "IAC BREAK" command and the double IAC.
|
1866 |
*/
|
1867 |
|
1868 |
int i;
|
1869 |
int j = 0; |
1870 |
|
1871 |
for (i = 0; i < *size; i++) { |
1872 |
if (s->do_telnetopt > 1) { |
1873 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
1874 |
/* Double IAC means send an IAC */
|
1875 |
if (j != i)
|
1876 |
buf[j] = buf[i]; |
1877 |
j++; |
1878 |
s->do_telnetopt = 1;
|
1879 |
} else {
|
1880 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
1881 |
/* Handle IAC break commands by sending a serial break */
|
1882 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
1883 |
s->do_telnetopt++; |
1884 |
} |
1885 |
s->do_telnetopt++; |
1886 |
} |
1887 |
if (s->do_telnetopt >= 4) { |
1888 |
s->do_telnetopt = 1;
|
1889 |
} |
1890 |
} else {
|
1891 |
if ((unsigned char)buf[i] == IAC) { |
1892 |
s->do_telnetopt = 2;
|
1893 |
} else {
|
1894 |
if (j != i)
|
1895 |
buf[j] = buf[i]; |
1896 |
j++; |
1897 |
} |
1898 |
} |
1899 |
} |
1900 |
*size = j; |
1901 |
} |
1902 |
|
1903 |
static void tcp_chr_read(void *opaque) |
1904 |
{ |
1905 |
CharDriverState *chr = opaque; |
1906 |
TCPCharDriver *s = chr->opaque; |
1907 |
uint8_t buf[1024];
|
1908 |
int len, size;
|
1909 |
|
1910 |
if (!s->connected || s->max_size <= 0) |
1911 |
return;
|
1912 |
len = sizeof(buf);
|
1913 |
if (len > s->max_size)
|
1914 |
len = s->max_size; |
1915 |
size = recv(s->fd, buf, len, 0);
|
1916 |
if (size == 0) { |
1917 |
/* connection closed */
|
1918 |
s->connected = 0;
|
1919 |
if (s->listen_fd >= 0) { |
1920 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
1921 |
} |
1922 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1923 |
closesocket(s->fd); |
1924 |
s->fd = -1;
|
1925 |
} else if (size > 0) { |
1926 |
if (s->do_telnetopt)
|
1927 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
1928 |
if (size > 0) |
1929 |
qemu_chr_read(chr, buf, size); |
1930 |
} |
1931 |
} |
1932 |
|
1933 |
static void tcp_chr_connect(void *opaque) |
1934 |
{ |
1935 |
CharDriverState *chr = opaque; |
1936 |
TCPCharDriver *s = chr->opaque; |
1937 |
|
1938 |
s->connected = 1;
|
1939 |
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, |
1940 |
tcp_chr_read, NULL, chr);
|
1941 |
qemu_chr_reset(chr); |
1942 |
} |
1943 |
|
1944 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
1945 |
static void tcp_chr_telnet_init(int fd) |
1946 |
{ |
1947 |
char buf[3]; |
1948 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
1949 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
1950 |
send(fd, (char *)buf, 3, 0); |
1951 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
1952 |
send(fd, (char *)buf, 3, 0); |
1953 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
1954 |
send(fd, (char *)buf, 3, 0); |
1955 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
1956 |
send(fd, (char *)buf, 3, 0); |
1957 |
} |
1958 |
|
1959 |
static void socket_set_nodelay(int fd) |
1960 |
{ |
1961 |
int val = 1; |
1962 |
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
1963 |
} |
1964 |
|
1965 |
static void tcp_chr_accept(void *opaque) |
1966 |
{ |
1967 |
CharDriverState *chr = opaque; |
1968 |
TCPCharDriver *s = chr->opaque; |
1969 |
struct sockaddr_in saddr;
|
1970 |
#ifndef _WIN32
|
1971 |
struct sockaddr_un uaddr;
|
1972 |
#endif
|
1973 |
struct sockaddr *addr;
|
1974 |
socklen_t len; |
1975 |
int fd;
|
1976 |
|
1977 |
for(;;) {
|
1978 |
#ifndef _WIN32
|
1979 |
if (s->is_unix) {
|
1980 |
len = sizeof(uaddr);
|
1981 |
addr = (struct sockaddr *)&uaddr;
|
1982 |
} else
|
1983 |
#endif
|
1984 |
{ |
1985 |
len = sizeof(saddr);
|
1986 |
addr = (struct sockaddr *)&saddr;
|
1987 |
} |
1988 |
fd = accept(s->listen_fd, addr, &len); |
1989 |
if (fd < 0 && errno != EINTR) { |
1990 |
return;
|
1991 |
} else if (fd >= 0) { |
1992 |
if (s->do_telnetopt)
|
1993 |
tcp_chr_telnet_init(fd); |
1994 |
break;
|
1995 |
} |
1996 |
} |
1997 |
socket_set_nonblock(fd); |
1998 |
if (s->do_nodelay)
|
1999 |
socket_set_nodelay(fd); |
2000 |
s->fd = fd; |
2001 |
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
2002 |
tcp_chr_connect(chr); |
2003 |
} |
2004 |
|
2005 |
static void tcp_chr_close(CharDriverState *chr) |
2006 |
{ |
2007 |
TCPCharDriver *s = chr->opaque; |
2008 |
if (s->fd >= 0) |
2009 |
closesocket(s->fd); |
2010 |
if (s->listen_fd >= 0) |
2011 |
closesocket(s->listen_fd); |
2012 |
qemu_free(s); |
2013 |
} |
2014 |
|
2015 |
static CharDriverState *qemu_chr_open_tcp(const char *host_str, |
2016 |
int is_telnet,
|
2017 |
int is_unix)
|
2018 |
{ |
2019 |
CharDriverState *chr = NULL;
|
2020 |
TCPCharDriver *s = NULL;
|
2021 |
int fd = -1, offset = 0; |
2022 |
int is_listen = 0; |
2023 |
int is_waitconnect = 1; |
2024 |
int do_nodelay = 0; |
2025 |
const char *ptr; |
2026 |
|
2027 |
ptr = host_str; |
2028 |
while((ptr = strchr(ptr,','))) { |
2029 |
ptr++; |
2030 |
if (!strncmp(ptr,"server",6)) { |
2031 |
is_listen = 1;
|
2032 |
} else if (!strncmp(ptr,"nowait",6)) { |
2033 |
is_waitconnect = 0;
|
2034 |
} else if (!strncmp(ptr,"nodelay",6)) { |
2035 |
do_nodelay = 1;
|
2036 |
} else if (!strncmp(ptr,"to=",3)) { |
2037 |
/* nothing, inet_listen() parses this one */;
|
2038 |
} else {
|
2039 |
printf("Unknown option: %s\n", ptr);
|
2040 |
goto fail;
|
2041 |
} |
2042 |
} |
2043 |
if (!is_listen)
|
2044 |
is_waitconnect = 0;
|
2045 |
|
2046 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
2047 |
if (!chr)
|
2048 |
goto fail;
|
2049 |
s = qemu_mallocz(sizeof(TCPCharDriver));
|
2050 |
if (!s)
|
2051 |
goto fail;
|
2052 |
|
2053 |
if (is_listen) {
|
2054 |
chr->filename = qemu_malloc(256);
|
2055 |
if (is_unix) {
|
2056 |
pstrcpy(chr->filename, 256, "unix:"); |
2057 |
} else if (is_telnet) { |
2058 |
pstrcpy(chr->filename, 256, "telnet:"); |
2059 |
} else {
|
2060 |
pstrcpy(chr->filename, 256, "tcp:"); |
2061 |
} |
2062 |
offset = strlen(chr->filename); |
2063 |
} |
2064 |
if (is_unix) {
|
2065 |
if (is_listen) {
|
2066 |
fd = unix_listen(host_str, chr->filename + offset, 256 - offset);
|
2067 |
} else {
|
2068 |
fd = unix_connect(host_str); |
2069 |
} |
2070 |
} else {
|
2071 |
if (is_listen) {
|
2072 |
fd = inet_listen(host_str, chr->filename + offset, 256 - offset,
|
2073 |
SOCK_STREAM, 0);
|
2074 |
} else {
|
2075 |
fd = inet_connect(host_str, SOCK_STREAM); |
2076 |
} |
2077 |
} |
2078 |
if (fd < 0) |
2079 |
goto fail;
|
2080 |
|
2081 |
if (!is_waitconnect)
|
2082 |
socket_set_nonblock(fd); |
2083 |
|
2084 |
s->connected = 0;
|
2085 |
s->fd = -1;
|
2086 |
s->listen_fd = -1;
|
2087 |
s->is_unix = is_unix; |
2088 |
s->do_nodelay = do_nodelay && !is_unix; |
2089 |
|
2090 |
chr->opaque = s; |
2091 |
chr->chr_write = tcp_chr_write; |
2092 |
chr->chr_close = tcp_chr_close; |
2093 |
|
2094 |
if (is_listen) {
|
2095 |
s->listen_fd = fd; |
2096 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
2097 |
if (is_telnet)
|
2098 |
s->do_telnetopt = 1;
|
2099 |
} else {
|
2100 |
s->connected = 1;
|
2101 |
s->fd = fd; |
2102 |
socket_set_nodelay(fd); |
2103 |
tcp_chr_connect(chr); |
2104 |
} |
2105 |
|
2106 |
if (is_listen && is_waitconnect) {
|
2107 |
printf("QEMU waiting for connection on: %s\n",
|
2108 |
chr->filename ? chr->filename : host_str); |
2109 |
tcp_chr_accept(chr); |
2110 |
socket_set_nonblock(s->listen_fd); |
2111 |
} |
2112 |
|
2113 |
return chr;
|
2114 |
fail:
|
2115 |
if (fd >= 0) |
2116 |
closesocket(fd); |
2117 |
qemu_free(s); |
2118 |
qemu_free(chr); |
2119 |
return NULL; |
2120 |
} |
2121 |
|
2122 |
static TAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs
|
2123 |
= TAILQ_HEAD_INITIALIZER(chardevs); |
2124 |
|
2125 |
CharDriverState *qemu_chr_open(const char *label, const char *filename) |
2126 |
{ |
2127 |
const char *p; |
2128 |
CharDriverState *chr; |
2129 |
|
2130 |
if (!strcmp(filename, "vc")) { |
2131 |
chr = text_console_init(get_displaystate(), 0);
|
2132 |
} else
|
2133 |
if (strstart(filename, "vc:", &p)) { |
2134 |
chr = text_console_init(get_displaystate(), p); |
2135 |
} else
|
2136 |
if (!strcmp(filename, "null")) { |
2137 |
chr = qemu_chr_open_null(); |
2138 |
} else
|
2139 |
if (strstart(filename, "tcp:", &p)) { |
2140 |
chr = qemu_chr_open_tcp(p, 0, 0); |
2141 |
} else
|
2142 |
if (strstart(filename, "telnet:", &p)) { |
2143 |
chr = qemu_chr_open_tcp(p, 1, 0); |
2144 |
} else
|
2145 |
if (strstart(filename, "udp:", &p)) { |
2146 |
chr = qemu_chr_open_udp(p); |
2147 |
} else
|
2148 |
if (strstart(filename, "mon:", &p)) { |
2149 |
chr = qemu_chr_open(label, p); |
2150 |
if (chr) {
|
2151 |
chr = qemu_chr_open_mux(chr); |
2152 |
monitor_init(chr, !nographic); |
2153 |
} else {
|
2154 |
printf("Unable to open driver: %s\n", p);
|
2155 |
} |
2156 |
} else
|
2157 |
#ifndef _WIN32
|
2158 |
if (strstart(filename, "unix:", &p)) { |
2159 |
chr = qemu_chr_open_tcp(p, 0, 1); |
2160 |
} else if (strstart(filename, "file:", &p)) { |
2161 |
chr = qemu_chr_open_file_out(p); |
2162 |
} else if (strstart(filename, "pipe:", &p)) { |
2163 |
chr = qemu_chr_open_pipe(p); |
2164 |
} else if (!strcmp(filename, "pty")) { |
2165 |
chr = qemu_chr_open_pty(); |
2166 |
} else if (!strcmp(filename, "stdio")) { |
2167 |
chr = qemu_chr_open_stdio(); |
2168 |
} else
|
2169 |
#if defined(__linux__)
|
2170 |
if (strstart(filename, "/dev/parport", NULL)) { |
2171 |
chr = qemu_chr_open_pp(filename); |
2172 |
} else
|
2173 |
#elif defined(__FreeBSD__)
|
2174 |
if (strstart(filename, "/dev/ppi", NULL)) { |
2175 |
chr = qemu_chr_open_pp(filename); |
2176 |
} else
|
2177 |
#endif
|
2178 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
2179 |
|| defined(__NetBSD__) || defined(__OpenBSD__) |
2180 |
if (strstart(filename, "/dev/", NULL)) { |
2181 |
chr = qemu_chr_open_tty(filename); |
2182 |
} else
|
2183 |
#endif
|
2184 |
#else /* !_WIN32 */ |
2185 |
if (strstart(filename, "COM", NULL)) { |
2186 |
chr = qemu_chr_open_win(filename); |
2187 |
} else
|
2188 |
if (strstart(filename, "pipe:", &p)) { |
2189 |
chr = qemu_chr_open_win_pipe(p); |
2190 |
} else
|
2191 |
if (strstart(filename, "con:", NULL)) { |
2192 |
chr = qemu_chr_open_win_con(filename); |
2193 |
} else
|
2194 |
if (strstart(filename, "file:", &p)) { |
2195 |
chr = qemu_chr_open_win_file_out(p); |
2196 |
} else
|
2197 |
#endif
|
2198 |
#ifdef CONFIG_BRLAPI
|
2199 |
if (!strcmp(filename, "braille")) { |
2200 |
chr = chr_baum_init(); |
2201 |
} else
|
2202 |
#endif
|
2203 |
{ |
2204 |
chr = NULL;
|
2205 |
} |
2206 |
|
2207 |
if (chr) {
|
2208 |
if (!chr->filename)
|
2209 |
chr->filename = qemu_strdup(filename); |
2210 |
chr->label = qemu_strdup(label); |
2211 |
TAILQ_INSERT_TAIL(&chardevs, chr, next); |
2212 |
} |
2213 |
return chr;
|
2214 |
} |
2215 |
|
2216 |
void qemu_chr_close(CharDriverState *chr)
|
2217 |
{ |
2218 |
TAILQ_REMOVE(&chardevs, chr, next); |
2219 |
if (chr->chr_close)
|
2220 |
chr->chr_close(chr); |
2221 |
qemu_free(chr->filename); |
2222 |
qemu_free(chr->label); |
2223 |
qemu_free(chr); |
2224 |
} |
2225 |
|
2226 |
void qemu_chr_info(void) |
2227 |
{ |
2228 |
CharDriverState *chr; |
2229 |
|
2230 |
TAILQ_FOREACH(chr, &chardevs, next) { |
2231 |
term_printf("%s: filename=%s\n", chr->label, chr->filename);
|
2232 |
} |
2233 |
} |