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| 1 |
/*
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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" |
| 25 |
#include "net.h" |
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#include "console.h" |
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#include "sysemu.h" |
| 28 |
#include "qemu-timer.h" |
| 29 |
#include "qemu-char.h" |
| 30 |
#include "block.h" |
| 31 |
#include "hw/usb.h" |
| 32 |
#include "hw/baum.h" |
| 33 |
|
| 34 |
#include <unistd.h> |
| 35 |
#include <fcntl.h> |
| 36 |
#include <signal.h> |
| 37 |
#include <time.h> |
| 38 |
#include <errno.h> |
| 39 |
#include <sys/time.h> |
| 40 |
#include <zlib.h> |
| 41 |
|
| 42 |
#ifndef _WIN32
|
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#include <sys/times.h> |
| 44 |
#include <sys/wait.h> |
| 45 |
#include <termios.h> |
| 46 |
#include <sys/mman.h> |
| 47 |
#include <sys/ioctl.h> |
| 48 |
#include <sys/resource.h> |
| 49 |
#include <sys/socket.h> |
| 50 |
#include <netinet/in.h> |
| 51 |
#include <net/if.h> |
| 52 |
#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> |
| 59 |
#include <dirent.h> |
| 60 |
#include <netdb.h> |
| 61 |
#include <sys/select.h> |
| 62 |
#ifdef _BSD
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#include <sys/stat.h> |
| 64 |
#ifdef __FreeBSD__
|
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#include <libutil.h> |
| 66 |
#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> |
| 74 |
|
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#include <linux/ppdev.h> |
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#include <linux/parport.h> |
| 77 |
#endif
|
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#ifdef __sun__
|
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#include <sys/stat.h> |
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#include <sys/ethernet.h> |
| 81 |
#include <sys/sockio.h> |
| 82 |
#include <netinet/arp.h> |
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#include <netinet/in.h> |
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#include <netinet/in_systm.h> |
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#include <netinet/ip.h> |
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#include <netinet/ip_icmp.h> // must come after ip.h |
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#include <netinet/udp.h> |
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#include <netinet/tcp.h> |
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#include <net/if.h> |
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#include <syslog.h> |
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#include <stropts.h> |
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#endif
|
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#endif
|
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#endif
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|
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#include "qemu_socket.h" |
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|
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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) |
| 102 |
{
|
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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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} |
| 107 |
|
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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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} |
| 115 |
|
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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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} |
| 123 |
|
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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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} |
| 128 |
|
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int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg) |
| 130 |
{
|
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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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} |
| 135 |
|
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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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} |
| 142 |
|
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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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} |
| 147 |
|
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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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} |
| 153 |
|
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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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} |
| 163 |
|
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void qemu_chr_send_event(CharDriverState *s, int event) |
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{
|
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if (s->chr_send_event)
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s->chr_send_event(s, event); |
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} |
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|
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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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|
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static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
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{
|
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return len;
|
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} |
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|
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static CharDriverState *qemu_chr_open_null(void) |
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{
|
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CharDriverState *chr; |
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|
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chr = 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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|
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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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|
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|
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static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
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{
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MuxDriver *d = chr->opaque; |
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int ret;
|
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if (!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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|
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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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|
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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; |
| 241 |
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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} |
| 255 |
|
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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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}; |
| 266 |
|
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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"; |
| 273 |
|
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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'); |
| 277 |
} 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); |
| 281 |
} |
| 282 |
chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf)); |
| 283 |
for (i = 0; mux_help[i] != NULL; i++) { |
| 284 |
for (j=0; mux_help[i][j] != '\0'; j++) { |
| 285 |
if (mux_help[i][j] == '%') |
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chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf)); |
| 287 |
else
|
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chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
|
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} |
| 290 |
} |
| 291 |
} |
| 292 |
|
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static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
| 294 |
{
|
| 295 |
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;
|
| 299 |
switch(ch) {
|
| 300 |
case '?': |
| 301 |
case 'h': |
| 302 |
mux_print_help(chr); |
| 303 |
break;
|
| 304 |
case 'x': |
| 305 |
{
|
| 306 |
const char *term = "QEMU: Terminated\n\r"; |
| 307 |
chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
| 308 |
exit(0);
|
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break;
|
| 310 |
} |
| 311 |
case 's': |
| 312 |
{
|
| 313 |
int i;
|
| 314 |
for (i = 0; i < nb_drives; i++) { |
| 315 |
bdrv_commit(drives_table[i].bdrv); |
| 316 |
} |
| 317 |
} |
| 318 |
break;
|
| 319 |
case 'b': |
| 320 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
| 321 |
break;
|
| 322 |
case 'c': |
| 323 |
/* Switch to the next registered device */
|
| 324 |
chr->focus++; |
| 325 |
if (chr->focus >= d->mux_cnt)
|
| 326 |
chr->focus = 0;
|
| 327 |
break;
|
| 328 |
case 't': |
| 329 |
term_timestamps = !term_timestamps; |
| 330 |
term_timestamps_start = -1;
|
| 331 |
break;
|
| 332 |
} |
| 333 |
} else if (ch == term_escape_char) { |
| 334 |
d->term_got_escape = 1;
|
| 335 |
} else {
|
| 336 |
send_char:
|
| 337 |
return 1; |
| 338 |
} |
| 339 |
return 0; |
| 340 |
} |
| 341 |
|
| 342 |
static void mux_chr_accept_input(CharDriverState *chr) |
| 343 |
{
|
| 344 |
int m = chr->focus;
|
| 345 |
MuxDriver *d = chr->opaque; |
| 346 |
|
| 347 |
while (d->prod != d->cons &&
|
| 348 |
d->chr_can_read[m] && |
| 349 |
d->chr_can_read[m](d->ext_opaque[m])) {
|
| 350 |
d->chr_read[m](d->ext_opaque[m], |
| 351 |
&d->buffer[d->cons++ & MUX_BUFFER_MASK], 1);
|
| 352 |
} |
| 353 |
} |
| 354 |
|
| 355 |
static int mux_chr_can_read(void *opaque) |
| 356 |
{
|
| 357 |
CharDriverState *chr = opaque; |
| 358 |
MuxDriver *d = chr->opaque; |
| 359 |
|
| 360 |
if ((d->prod - d->cons) < MUX_BUFFER_SIZE)
|
| 361 |
return 1; |
| 362 |
if (d->chr_can_read[chr->focus])
|
| 363 |
return d->chr_can_read[chr->focus](d->ext_opaque[chr->focus]);
|
| 364 |
return 0; |
| 365 |
} |
| 366 |
|
| 367 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
| 368 |
{
|
| 369 |
CharDriverState *chr = opaque; |
| 370 |
MuxDriver *d = chr->opaque; |
| 371 |
int m = chr->focus;
|
| 372 |
int i;
|
| 373 |
|
| 374 |
mux_chr_accept_input (opaque); |
| 375 |
|
| 376 |
for(i = 0; i < size; i++) |
| 377 |
if (mux_proc_byte(chr, d, buf[i])) {
|
| 378 |
if (d->prod == d->cons &&
|
| 379 |
d->chr_can_read[m] && |
| 380 |
d->chr_can_read[m](d->ext_opaque[m])) |
| 381 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
| 382 |
else
|
| 383 |
d->buffer[d->prod++ & MUX_BUFFER_MASK] = buf[i]; |
| 384 |
} |
| 385 |
} |
| 386 |
|
| 387 |
static void mux_chr_event(void *opaque, int event) |
| 388 |
{
|
| 389 |
CharDriverState *chr = opaque; |
| 390 |
MuxDriver *d = chr->opaque; |
| 391 |
int i;
|
| 392 |
|
| 393 |
/* Send the event to all registered listeners */
|
| 394 |
for (i = 0; i < d->mux_cnt; i++) |
| 395 |
if (d->chr_event[i])
|
| 396 |
d->chr_event[i](d->ext_opaque[i], event); |
| 397 |
} |
| 398 |
|
| 399 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
| 400 |
{
|
| 401 |
MuxDriver *d = chr->opaque; |
| 402 |
|
| 403 |
if (d->mux_cnt >= MAX_MUX) {
|
| 404 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
| 405 |
return;
|
| 406 |
} |
| 407 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
| 408 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
| 409 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
| 410 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
| 411 |
/* Fix up the real driver with mux routines */
|
| 412 |
if (d->mux_cnt == 0) { |
| 413 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
| 414 |
mux_chr_event, chr); |
| 415 |
} |
| 416 |
chr->focus = d->mux_cnt; |
| 417 |
d->mux_cnt++; |
| 418 |
} |
| 419 |
|
| 420 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
| 421 |
{
|
| 422 |
CharDriverState *chr; |
| 423 |
MuxDriver *d; |
| 424 |
|
| 425 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 426 |
if (!chr)
|
| 427 |
return NULL; |
| 428 |
d = qemu_mallocz(sizeof(MuxDriver));
|
| 429 |
if (!d) {
|
| 430 |
free(chr); |
| 431 |
return NULL; |
| 432 |
} |
| 433 |
|
| 434 |
chr->opaque = d; |
| 435 |
d->drv = drv; |
| 436 |
chr->focus = -1;
|
| 437 |
chr->chr_write = mux_chr_write; |
| 438 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
| 439 |
chr->chr_accept_input = mux_chr_accept_input; |
| 440 |
return chr;
|
| 441 |
} |
| 442 |
|
| 443 |
|
| 444 |
#ifdef _WIN32
|
| 445 |
int send_all(int fd, const uint8_t *buf, int len1) |
| 446 |
{
|
| 447 |
int ret, len;
|
| 448 |
|
| 449 |
len = len1; |
| 450 |
while (len > 0) { |
| 451 |
ret = send(fd, buf, len, 0);
|
| 452 |
if (ret < 0) { |
| 453 |
int errno;
|
| 454 |
errno = WSAGetLastError(); |
| 455 |
if (errno != WSAEWOULDBLOCK) {
|
| 456 |
return -1; |
| 457 |
} |
| 458 |
} else if (ret == 0) { |
| 459 |
break;
|
| 460 |
} else {
|
| 461 |
buf += ret; |
| 462 |
len -= ret; |
| 463 |
} |
| 464 |
} |
| 465 |
return len1 - len;
|
| 466 |
} |
| 467 |
|
| 468 |
#else
|
| 469 |
|
| 470 |
static int unix_write(int fd, const uint8_t *buf, int len1) |
| 471 |
{
|
| 472 |
int ret, len;
|
| 473 |
|
| 474 |
len = len1; |
| 475 |
while (len > 0) { |
| 476 |
ret = write(fd, buf, len); |
| 477 |
if (ret < 0) { |
| 478 |
if (errno != EINTR && errno != EAGAIN)
|
| 479 |
return -1; |
| 480 |
} else if (ret == 0) { |
| 481 |
break;
|
| 482 |
} else {
|
| 483 |
buf += ret; |
| 484 |
len -= ret; |
| 485 |
} |
| 486 |
} |
| 487 |
return len1 - len;
|
| 488 |
} |
| 489 |
|
| 490 |
int send_all(int fd, const uint8_t *buf, int len1) |
| 491 |
{
|
| 492 |
return unix_write(fd, buf, len1);
|
| 493 |
} |
| 494 |
#endif /* !_WIN32 */ |
| 495 |
|
| 496 |
#ifndef _WIN32
|
| 497 |
|
| 498 |
typedef struct { |
| 499 |
int fd_in, fd_out;
|
| 500 |
int max_size;
|
| 501 |
} FDCharDriver; |
| 502 |
|
| 503 |
#define STDIO_MAX_CLIENTS 1 |
| 504 |
static int stdio_nb_clients = 0; |
| 505 |
|
| 506 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 507 |
{
|
| 508 |
FDCharDriver *s = chr->opaque; |
| 509 |
return send_all(s->fd_out, buf, len);
|
| 510 |
} |
| 511 |
|
| 512 |
static int fd_chr_read_poll(void *opaque) |
| 513 |
{
|
| 514 |
CharDriverState *chr = opaque; |
| 515 |
FDCharDriver *s = chr->opaque; |
| 516 |
|
| 517 |
s->max_size = qemu_chr_can_read(chr); |
| 518 |
return s->max_size;
|
| 519 |
} |
| 520 |
|
| 521 |
static void fd_chr_read(void *opaque) |
| 522 |
{
|
| 523 |
CharDriverState *chr = opaque; |
| 524 |
FDCharDriver *s = chr->opaque; |
| 525 |
int size, len;
|
| 526 |
uint8_t buf[1024];
|
| 527 |
|
| 528 |
len = sizeof(buf);
|
| 529 |
if (len > s->max_size)
|
| 530 |
len = s->max_size; |
| 531 |
if (len == 0) |
| 532 |
return;
|
| 533 |
size = read(s->fd_in, buf, len); |
| 534 |
if (size == 0) { |
| 535 |
/* FD has been closed. Remove it from the active list. */
|
| 536 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
| 537 |
return;
|
| 538 |
} |
| 539 |
if (size > 0) { |
| 540 |
qemu_chr_read(chr, buf, size); |
| 541 |
} |
| 542 |
} |
| 543 |
|
| 544 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
| 545 |
{
|
| 546 |
FDCharDriver *s = chr->opaque; |
| 547 |
|
| 548 |
if (s->fd_in >= 0) { |
| 549 |
if (nographic && s->fd_in == 0) { |
| 550 |
} else {
|
| 551 |
qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, |
| 552 |
fd_chr_read, NULL, chr);
|
| 553 |
} |
| 554 |
} |
| 555 |
} |
| 556 |
|
| 557 |
static void fd_chr_close(struct CharDriverState *chr) |
| 558 |
{
|
| 559 |
FDCharDriver *s = chr->opaque; |
| 560 |
|
| 561 |
if (s->fd_in >= 0) { |
| 562 |
if (nographic && s->fd_in == 0) { |
| 563 |
} else {
|
| 564 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
| 565 |
} |
| 566 |
} |
| 567 |
|
| 568 |
qemu_free(s); |
| 569 |
} |
| 570 |
|
| 571 |
/* open a character device to a unix fd */
|
| 572 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
| 573 |
{
|
| 574 |
CharDriverState *chr; |
| 575 |
FDCharDriver *s; |
| 576 |
|
| 577 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 578 |
if (!chr)
|
| 579 |
return NULL; |
| 580 |
s = qemu_mallocz(sizeof(FDCharDriver));
|
| 581 |
if (!s) {
|
| 582 |
free(chr); |
| 583 |
return NULL; |
| 584 |
} |
| 585 |
s->fd_in = fd_in; |
| 586 |
s->fd_out = fd_out; |
| 587 |
chr->opaque = s; |
| 588 |
chr->chr_write = fd_chr_write; |
| 589 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
| 590 |
chr->chr_close = fd_chr_close; |
| 591 |
|
| 592 |
qemu_chr_reset(chr); |
| 593 |
|
| 594 |
return chr;
|
| 595 |
} |
| 596 |
|
| 597 |
static CharDriverState *qemu_chr_open_file_out(const char *file_out) |
| 598 |
{
|
| 599 |
int fd_out;
|
| 600 |
|
| 601 |
TFR(fd_out = open(file_out, O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
| 602 |
if (fd_out < 0) |
| 603 |
return NULL; |
| 604 |
return qemu_chr_open_fd(-1, fd_out); |
| 605 |
} |
| 606 |
|
| 607 |
static CharDriverState *qemu_chr_open_pipe(const char *filename) |
| 608 |
{
|
| 609 |
int fd_in, fd_out;
|
| 610 |
char filename_in[256], filename_out[256]; |
| 611 |
|
| 612 |
snprintf(filename_in, 256, "%s.in", filename); |
| 613 |
snprintf(filename_out, 256, "%s.out", filename); |
| 614 |
TFR(fd_in = open(filename_in, O_RDWR | O_BINARY)); |
| 615 |
TFR(fd_out = open(filename_out, O_RDWR | O_BINARY)); |
| 616 |
if (fd_in < 0 || fd_out < 0) { |
| 617 |
if (fd_in >= 0) |
| 618 |
close(fd_in); |
| 619 |
if (fd_out >= 0) |
| 620 |
close(fd_out); |
| 621 |
TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY)); |
| 622 |
if (fd_in < 0) |
| 623 |
return NULL; |
| 624 |
} |
| 625 |
return qemu_chr_open_fd(fd_in, fd_out);
|
| 626 |
} |
| 627 |
|
| 628 |
|
| 629 |
/* for STDIO, we handle the case where several clients use it
|
| 630 |
(nographic mode) */
|
| 631 |
|
| 632 |
#define TERM_FIFO_MAX_SIZE 1 |
| 633 |
|
| 634 |
static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
|
| 635 |
static int term_fifo_size; |
| 636 |
|
| 637 |
static int stdio_read_poll(void *opaque) |
| 638 |
{
|
| 639 |
CharDriverState *chr = opaque; |
| 640 |
|
| 641 |
/* try to flush the queue if needed */
|
| 642 |
if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) { |
| 643 |
qemu_chr_read(chr, term_fifo, 1);
|
| 644 |
term_fifo_size = 0;
|
| 645 |
} |
| 646 |
/* see if we can absorb more chars */
|
| 647 |
if (term_fifo_size == 0) |
| 648 |
return 1; |
| 649 |
else
|
| 650 |
return 0; |
| 651 |
} |
| 652 |
|
| 653 |
static void stdio_read(void *opaque) |
| 654 |
{
|
| 655 |
int size;
|
| 656 |
uint8_t buf[1];
|
| 657 |
CharDriverState *chr = opaque; |
| 658 |
|
| 659 |
size = read(0, buf, 1); |
| 660 |
if (size == 0) { |
| 661 |
/* stdin has been closed. Remove it from the active list. */
|
| 662 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
| 663 |
return;
|
| 664 |
} |
| 665 |
if (size > 0) { |
| 666 |
if (qemu_chr_can_read(chr) > 0) { |
| 667 |
qemu_chr_read(chr, buf, 1);
|
| 668 |
} else if (term_fifo_size == 0) { |
| 669 |
term_fifo[term_fifo_size++] = buf[0];
|
| 670 |
} |
| 671 |
} |
| 672 |
} |
| 673 |
|
| 674 |
/* init terminal so that we can grab keys */
|
| 675 |
static struct termios oldtty; |
| 676 |
static int old_fd0_flags; |
| 677 |
static int term_atexit_done; |
| 678 |
|
| 679 |
static void term_exit(void) |
| 680 |
{
|
| 681 |
tcsetattr (0, TCSANOW, &oldtty);
|
| 682 |
fcntl(0, F_SETFL, old_fd0_flags);
|
| 683 |
} |
| 684 |
|
| 685 |
static void term_init(void) |
| 686 |
{
|
| 687 |
struct termios tty;
|
| 688 |
|
| 689 |
tcgetattr (0, &tty);
|
| 690 |
oldtty = tty; |
| 691 |
old_fd0_flags = fcntl(0, F_GETFL);
|
| 692 |
|
| 693 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 694 |
|INLCR|IGNCR|ICRNL|IXON); |
| 695 |
tty.c_oflag |= OPOST; |
| 696 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
| 697 |
/* if graphical mode, we allow Ctrl-C handling */
|
| 698 |
if (nographic)
|
| 699 |
tty.c_lflag &= ~ISIG; |
| 700 |
tty.c_cflag &= ~(CSIZE|PARENB); |
| 701 |
tty.c_cflag |= CS8; |
| 702 |
tty.c_cc[VMIN] = 1;
|
| 703 |
tty.c_cc[VTIME] = 0;
|
| 704 |
|
| 705 |
tcsetattr (0, TCSANOW, &tty);
|
| 706 |
|
| 707 |
if (!term_atexit_done++)
|
| 708 |
atexit(term_exit); |
| 709 |
|
| 710 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
| 711 |
} |
| 712 |
|
| 713 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
| 714 |
{
|
| 715 |
term_exit(); |
| 716 |
stdio_nb_clients--; |
| 717 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
| 718 |
fd_chr_close(chr); |
| 719 |
} |
| 720 |
|
| 721 |
static CharDriverState *qemu_chr_open_stdio(void) |
| 722 |
{
|
| 723 |
CharDriverState *chr; |
| 724 |
|
| 725 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
|
| 726 |
return NULL; |
| 727 |
chr = qemu_chr_open_fd(0, 1); |
| 728 |
chr->chr_close = qemu_chr_close_stdio; |
| 729 |
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); |
| 730 |
stdio_nb_clients++; |
| 731 |
term_init(); |
| 732 |
|
| 733 |
return chr;
|
| 734 |
} |
| 735 |
|
| 736 |
#ifdef __sun__
|
| 737 |
/* Once Solaris has openpty(), this is going to be removed. */
|
| 738 |
int openpty(int *amaster, int *aslave, char *name, |
| 739 |
struct termios *termp, struct winsize *winp) |
| 740 |
{
|
| 741 |
const char *slave; |
| 742 |
int mfd = -1, sfd = -1; |
| 743 |
|
| 744 |
*amaster = *aslave = -1;
|
| 745 |
|
| 746 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
| 747 |
if (mfd < 0) |
| 748 |
goto err;
|
| 749 |
|
| 750 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
| 751 |
goto err;
|
| 752 |
|
| 753 |
if ((slave = ptsname(mfd)) == NULL) |
| 754 |
goto err;
|
| 755 |
|
| 756 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
| 757 |
goto err;
|
| 758 |
|
| 759 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
| 760 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
| 761 |
goto err;
|
| 762 |
|
| 763 |
if (amaster)
|
| 764 |
*amaster = mfd; |
| 765 |
if (aslave)
|
| 766 |
*aslave = sfd; |
| 767 |
if (winp)
|
| 768 |
ioctl(sfd, TIOCSWINSZ, winp); |
| 769 |
|
| 770 |
return 0; |
| 771 |
|
| 772 |
err:
|
| 773 |
if (sfd != -1) |
| 774 |
close(sfd); |
| 775 |
close(mfd); |
| 776 |
return -1; |
| 777 |
} |
| 778 |
|
| 779 |
void cfmakeraw (struct termios *termios_p) |
| 780 |
{
|
| 781 |
termios_p->c_iflag &= |
| 782 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
| 783 |
termios_p->c_oflag &= ~OPOST; |
| 784 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
| 785 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
| 786 |
termios_p->c_cflag |= CS8; |
| 787 |
|
| 788 |
termios_p->c_cc[VMIN] = 0;
|
| 789 |
termios_p->c_cc[VTIME] = 0;
|
| 790 |
} |
| 791 |
#endif
|
| 792 |
|
| 793 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
| 794 |
|| defined(__NetBSD__) || defined(__OpenBSD__) |
| 795 |
|
| 796 |
typedef struct { |
| 797 |
int fd;
|
| 798 |
int connected;
|
| 799 |
int polling;
|
| 800 |
int read_bytes;
|
| 801 |
QEMUTimer *timer; |
| 802 |
} PtyCharDriver; |
| 803 |
|
| 804 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
| 805 |
static void pty_chr_state(CharDriverState *chr, int connected); |
| 806 |
|
| 807 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 808 |
{
|
| 809 |
PtyCharDriver *s = chr->opaque; |
| 810 |
|
| 811 |
if (!s->connected) {
|
| 812 |
/* guest sends data, check for (re-)connect */
|
| 813 |
pty_chr_update_read_handler(chr); |
| 814 |
return 0; |
| 815 |
} |
| 816 |
return send_all(s->fd, buf, len);
|
| 817 |
} |
| 818 |
|
| 819 |
static int pty_chr_read_poll(void *opaque) |
| 820 |
{
|
| 821 |
CharDriverState *chr = opaque; |
| 822 |
PtyCharDriver *s = chr->opaque; |
| 823 |
|
| 824 |
s->read_bytes = qemu_chr_can_read(chr); |
| 825 |
return s->read_bytes;
|
| 826 |
} |
| 827 |
|
| 828 |
static void pty_chr_read(void *opaque) |
| 829 |
{
|
| 830 |
CharDriverState *chr = opaque; |
| 831 |
PtyCharDriver *s = chr->opaque; |
| 832 |
int size, len;
|
| 833 |
uint8_t buf[1024];
|
| 834 |
|
| 835 |
len = sizeof(buf);
|
| 836 |
if (len > s->read_bytes)
|
| 837 |
len = s->read_bytes; |
| 838 |
if (len == 0) |
| 839 |
return;
|
| 840 |
size = read(s->fd, buf, len); |
| 841 |
if ((size == -1 && errno == EIO) || |
| 842 |
(size == 0)) {
|
| 843 |
pty_chr_state(chr, 0);
|
| 844 |
return;
|
| 845 |
} |
| 846 |
if (size > 0) { |
| 847 |
pty_chr_state(chr, 1);
|
| 848 |
qemu_chr_read(chr, buf, size); |
| 849 |
} |
| 850 |
} |
| 851 |
|
| 852 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
| 853 |
{
|
| 854 |
PtyCharDriver *s = chr->opaque; |
| 855 |
|
| 856 |
qemu_set_fd_handler2(s->fd, pty_chr_read_poll, |
| 857 |
pty_chr_read, NULL, chr);
|
| 858 |
s->polling = 1;
|
| 859 |
/*
|
| 860 |
* Short timeout here: just need wait long enougth that qemu makes
|
| 861 |
* it through the poll loop once. When reconnected we want a
|
| 862 |
* short timeout so we notice it almost instantly. Otherwise
|
| 863 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
| 864 |
* timeout to the normal (much longer) poll interval before the
|
| 865 |
* timer triggers.
|
| 866 |
*/
|
| 867 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
|
| 868 |
} |
| 869 |
|
| 870 |
static void pty_chr_state(CharDriverState *chr, int connected) |
| 871 |
{
|
| 872 |
PtyCharDriver *s = chr->opaque; |
| 873 |
|
| 874 |
if (!connected) {
|
| 875 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
| 876 |
s->connected = 0;
|
| 877 |
s->polling = 0;
|
| 878 |
/* (re-)connect poll interval for idle guests: once per second.
|
| 879 |
* We check more frequently in case the guests sends data to
|
| 880 |
* the virtual device linked to our pty. */
|
| 881 |
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
|
| 882 |
} else {
|
| 883 |
if (!s->connected)
|
| 884 |
qemu_chr_reset(chr); |
| 885 |
s->connected = 1;
|
| 886 |
} |
| 887 |
} |
| 888 |
|
| 889 |
static void pty_chr_timer(void *opaque) |
| 890 |
{
|
| 891 |
struct CharDriverState *chr = opaque;
|
| 892 |
PtyCharDriver *s = chr->opaque; |
| 893 |
|
| 894 |
if (s->connected)
|
| 895 |
return;
|
| 896 |
if (s->polling) {
|
| 897 |
/* If we arrive here without polling being cleared due
|
| 898 |
* read returning -EIO, then we are (re-)connected */
|
| 899 |
pty_chr_state(chr, 1);
|
| 900 |
return;
|
| 901 |
} |
| 902 |
|
| 903 |
/* Next poll ... */
|
| 904 |
pty_chr_update_read_handler(chr); |
| 905 |
} |
| 906 |
|
| 907 |
static void pty_chr_close(struct CharDriverState *chr) |
| 908 |
{
|
| 909 |
PtyCharDriver *s = chr->opaque; |
| 910 |
|
| 911 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
| 912 |
close(s->fd); |
| 913 |
qemu_free(s); |
| 914 |
} |
| 915 |
|
| 916 |
static CharDriverState *qemu_chr_open_pty(void) |
| 917 |
{
|
| 918 |
CharDriverState *chr; |
| 919 |
PtyCharDriver *s; |
| 920 |
struct termios tty;
|
| 921 |
int slave_fd, len;
|
| 922 |
#if defined(__OpenBSD__)
|
| 923 |
char pty_name[PATH_MAX];
|
| 924 |
#define q_ptsname(x) pty_name
|
| 925 |
#else
|
| 926 |
char *pty_name = NULL; |
| 927 |
#define q_ptsname(x) ptsname(x)
|
| 928 |
#endif
|
| 929 |
|
| 930 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 931 |
if (!chr)
|
| 932 |
return NULL; |
| 933 |
s = qemu_mallocz(sizeof(PtyCharDriver));
|
| 934 |
if (!s) {
|
| 935 |
qemu_free(chr); |
| 936 |
return NULL; |
| 937 |
} |
| 938 |
|
| 939 |
if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
| 940 |
return NULL; |
| 941 |
} |
| 942 |
|
| 943 |
/* Set raw attributes on the pty. */
|
| 944 |
cfmakeraw(&tty); |
| 945 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
| 946 |
close(slave_fd); |
| 947 |
|
| 948 |
len = strlen(q_ptsname(s->fd)) + 5;
|
| 949 |
chr->filename = qemu_malloc(len); |
| 950 |
snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
|
| 951 |
fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
|
| 952 |
|
| 953 |
chr->opaque = s; |
| 954 |
chr->chr_write = pty_chr_write; |
| 955 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
| 956 |
chr->chr_close = pty_chr_close; |
| 957 |
|
| 958 |
s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr); |
| 959 |
|
| 960 |
return chr;
|
| 961 |
} |
| 962 |
|
| 963 |
static void tty_serial_init(int fd, int speed, |
| 964 |
int parity, int data_bits, int stop_bits) |
| 965 |
{
|
| 966 |
struct termios tty;
|
| 967 |
speed_t spd; |
| 968 |
|
| 969 |
#if 0
|
| 970 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
| 971 |
speed, parity, data_bits, stop_bits);
|
| 972 |
#endif
|
| 973 |
tcgetattr (fd, &tty); |
| 974 |
|
| 975 |
#define MARGIN 1.1 |
| 976 |
if (speed <= 50 * MARGIN) |
| 977 |
spd = B50; |
| 978 |
else if (speed <= 75 * MARGIN) |
| 979 |
spd = B75; |
| 980 |
else if (speed <= 300 * MARGIN) |
| 981 |
spd = B300; |
| 982 |
else if (speed <= 600 * MARGIN) |
| 983 |
spd = B600; |
| 984 |
else if (speed <= 1200 * MARGIN) |
| 985 |
spd = B1200; |
| 986 |
else if (speed <= 2400 * MARGIN) |
| 987 |
spd = B2400; |
| 988 |
else if (speed <= 4800 * MARGIN) |
| 989 |
spd = B4800; |
| 990 |
else if (speed <= 9600 * MARGIN) |
| 991 |
spd = B9600; |
| 992 |
else if (speed <= 19200 * MARGIN) |
| 993 |
spd = B19200; |
| 994 |
else if (speed <= 38400 * MARGIN) |
| 995 |
spd = B38400; |
| 996 |
else if (speed <= 57600 * MARGIN) |
| 997 |
spd = B57600; |
| 998 |
else if (speed <= 115200 * MARGIN) |
| 999 |
spd = B115200; |
| 1000 |
else
|
| 1001 |
spd = B115200; |
| 1002 |
|
| 1003 |
cfsetispeed(&tty, spd); |
| 1004 |
cfsetospeed(&tty, spd); |
| 1005 |
|
| 1006 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 1007 |
|INLCR|IGNCR|ICRNL|IXON); |
| 1008 |
tty.c_oflag |= OPOST; |
| 1009 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
| 1010 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
| 1011 |
switch(data_bits) {
|
| 1012 |
default:
|
| 1013 |
case 8: |
| 1014 |
tty.c_cflag |= CS8; |
| 1015 |
break;
|
| 1016 |
case 7: |
| 1017 |
tty.c_cflag |= CS7; |
| 1018 |
break;
|
| 1019 |
case 6: |
| 1020 |
tty.c_cflag |= CS6; |
| 1021 |
break;
|
| 1022 |
case 5: |
| 1023 |
tty.c_cflag |= CS5; |
| 1024 |
break;
|
| 1025 |
} |
| 1026 |
switch(parity) {
|
| 1027 |
default:
|
| 1028 |
case 'N': |
| 1029 |
break;
|
| 1030 |
case 'E': |
| 1031 |
tty.c_cflag |= PARENB; |
| 1032 |
break;
|
| 1033 |
case 'O': |
| 1034 |
tty.c_cflag |= PARENB | PARODD; |
| 1035 |
break;
|
| 1036 |
} |
| 1037 |
if (stop_bits == 2) |
| 1038 |
tty.c_cflag |= CSTOPB; |
| 1039 |
|
| 1040 |
tcsetattr (fd, TCSANOW, &tty); |
| 1041 |
} |
| 1042 |
|
| 1043 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1044 |
{
|
| 1045 |
FDCharDriver *s = chr->opaque; |
| 1046 |
|
| 1047 |
switch(cmd) {
|
| 1048 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
| 1049 |
{
|
| 1050 |
QEMUSerialSetParams *ssp = arg; |
| 1051 |
tty_serial_init(s->fd_in, ssp->speed, ssp->parity, |
| 1052 |
ssp->data_bits, ssp->stop_bits); |
| 1053 |
} |
| 1054 |
break;
|
| 1055 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
| 1056 |
{
|
| 1057 |
int enable = *(int *)arg; |
| 1058 |
if (enable)
|
| 1059 |
tcsendbreak(s->fd_in, 1);
|
| 1060 |
} |
| 1061 |
break;
|
| 1062 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
| 1063 |
{
|
| 1064 |
int sarg = 0; |
| 1065 |
int *targ = (int *)arg; |
| 1066 |
ioctl(s->fd_in, TIOCMGET, &sarg); |
| 1067 |
*targ = 0;
|
| 1068 |
if (sarg | TIOCM_CTS)
|
| 1069 |
*targ |= CHR_TIOCM_CTS; |
| 1070 |
if (sarg | TIOCM_CAR)
|
| 1071 |
*targ |= CHR_TIOCM_CAR; |
| 1072 |
if (sarg | TIOCM_DSR)
|
| 1073 |
*targ |= CHR_TIOCM_DSR; |
| 1074 |
if (sarg | TIOCM_RI)
|
| 1075 |
*targ |= CHR_TIOCM_RI; |
| 1076 |
if (sarg | TIOCM_DTR)
|
| 1077 |
*targ |= CHR_TIOCM_DTR; |
| 1078 |
if (sarg | TIOCM_RTS)
|
| 1079 |
*targ |= CHR_TIOCM_RTS; |
| 1080 |
} |
| 1081 |
break;
|
| 1082 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
| 1083 |
{
|
| 1084 |
int sarg = *(int *)arg; |
| 1085 |
int targ = 0; |
| 1086 |
if (sarg | CHR_TIOCM_DTR)
|
| 1087 |
targ |= TIOCM_DTR; |
| 1088 |
if (sarg | CHR_TIOCM_RTS)
|
| 1089 |
targ |= TIOCM_RTS; |
| 1090 |
ioctl(s->fd_in, TIOCMSET, &targ); |
| 1091 |
} |
| 1092 |
break;
|
| 1093 |
default:
|
| 1094 |
return -ENOTSUP;
|
| 1095 |
} |
| 1096 |
return 0; |
| 1097 |
} |
| 1098 |
|
| 1099 |
static CharDriverState *qemu_chr_open_tty(const char *filename) |
| 1100 |
{
|
| 1101 |
CharDriverState *chr; |
| 1102 |
int fd;
|
| 1103 |
|
| 1104 |
TFR(fd = open(filename, O_RDWR | O_NONBLOCK)); |
| 1105 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
| 1106 |
chr = qemu_chr_open_fd(fd, fd); |
| 1107 |
if (!chr) {
|
| 1108 |
close(fd); |
| 1109 |
return NULL; |
| 1110 |
} |
| 1111 |
chr->chr_ioctl = tty_serial_ioctl; |
| 1112 |
qemu_chr_reset(chr); |
| 1113 |
return chr;
|
| 1114 |
} |
| 1115 |
#else /* ! __linux__ && ! __sun__ */ |
| 1116 |
static CharDriverState *qemu_chr_open_pty(void) |
| 1117 |
{
|
| 1118 |
return NULL; |
| 1119 |
} |
| 1120 |
#endif /* __linux__ || __sun__ */ |
| 1121 |
|
| 1122 |
#if defined(__linux__)
|
| 1123 |
typedef struct { |
| 1124 |
int fd;
|
| 1125 |
int mode;
|
| 1126 |
} ParallelCharDriver; |
| 1127 |
|
| 1128 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
| 1129 |
{
|
| 1130 |
if (s->mode != mode) {
|
| 1131 |
int m = mode;
|
| 1132 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
| 1133 |
return 0; |
| 1134 |
s->mode = mode; |
| 1135 |
} |
| 1136 |
return 1; |
| 1137 |
} |
| 1138 |
|
| 1139 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1140 |
{
|
| 1141 |
ParallelCharDriver *drv = chr->opaque; |
| 1142 |
int fd = drv->fd;
|
| 1143 |
uint8_t b; |
| 1144 |
|
| 1145 |
switch(cmd) {
|
| 1146 |
case CHR_IOCTL_PP_READ_DATA:
|
| 1147 |
if (ioctl(fd, PPRDATA, &b) < 0) |
| 1148 |
return -ENOTSUP;
|
| 1149 |
*(uint8_t *)arg = b; |
| 1150 |
break;
|
| 1151 |
case CHR_IOCTL_PP_WRITE_DATA:
|
| 1152 |
b = *(uint8_t *)arg; |
| 1153 |
if (ioctl(fd, PPWDATA, &b) < 0) |
| 1154 |
return -ENOTSUP;
|
| 1155 |
break;
|
| 1156 |
case CHR_IOCTL_PP_READ_CONTROL:
|
| 1157 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
| 1158 |
return -ENOTSUP;
|
| 1159 |
/* Linux gives only the lowest bits, and no way to know data
|
| 1160 |
direction! For better compatibility set the fixed upper
|
| 1161 |
bits. */
|
| 1162 |
*(uint8_t *)arg = b | 0xc0;
|
| 1163 |
break;
|
| 1164 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
| 1165 |
b = *(uint8_t *)arg; |
| 1166 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
| 1167 |
return -ENOTSUP;
|
| 1168 |
break;
|
| 1169 |
case CHR_IOCTL_PP_READ_STATUS:
|
| 1170 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
| 1171 |
return -ENOTSUP;
|
| 1172 |
*(uint8_t *)arg = b; |
| 1173 |
break;
|
| 1174 |
case CHR_IOCTL_PP_DATA_DIR:
|
| 1175 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
| 1176 |
return -ENOTSUP;
|
| 1177 |
break;
|
| 1178 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
| 1179 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
| 1180 |
struct ParallelIOArg *parg = arg;
|
| 1181 |
int n = read(fd, parg->buffer, parg->count);
|
| 1182 |
if (n != parg->count) {
|
| 1183 |
return -EIO;
|
| 1184 |
} |
| 1185 |
} |
| 1186 |
break;
|
| 1187 |
case CHR_IOCTL_PP_EPP_READ:
|
| 1188 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
| 1189 |
struct ParallelIOArg *parg = arg;
|
| 1190 |
int n = read(fd, parg->buffer, parg->count);
|
| 1191 |
if (n != parg->count) {
|
| 1192 |
return -EIO;
|
| 1193 |
} |
| 1194 |
} |
| 1195 |
break;
|
| 1196 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
| 1197 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
| 1198 |
struct ParallelIOArg *parg = arg;
|
| 1199 |
int n = write(fd, parg->buffer, parg->count);
|
| 1200 |
if (n != parg->count) {
|
| 1201 |
return -EIO;
|
| 1202 |
} |
| 1203 |
} |
| 1204 |
break;
|
| 1205 |
case CHR_IOCTL_PP_EPP_WRITE:
|
| 1206 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
| 1207 |
struct ParallelIOArg *parg = arg;
|
| 1208 |
int n = write(fd, parg->buffer, parg->count);
|
| 1209 |
if (n != parg->count) {
|
| 1210 |
return -EIO;
|
| 1211 |
} |
| 1212 |
} |
| 1213 |
break;
|
| 1214 |
default:
|
| 1215 |
return -ENOTSUP;
|
| 1216 |
} |
| 1217 |
return 0; |
| 1218 |
} |
| 1219 |
|
| 1220 |
static void pp_close(CharDriverState *chr) |
| 1221 |
{
|
| 1222 |
ParallelCharDriver *drv = chr->opaque; |
| 1223 |
int fd = drv->fd;
|
| 1224 |
|
| 1225 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
| 1226 |
ioctl(fd, PPRELEASE); |
| 1227 |
close(fd); |
| 1228 |
qemu_free(drv); |
| 1229 |
} |
| 1230 |
|
| 1231 |
static CharDriverState *qemu_chr_open_pp(const char *filename) |
| 1232 |
{
|
| 1233 |
CharDriverState *chr; |
| 1234 |
ParallelCharDriver *drv; |
| 1235 |
int fd;
|
| 1236 |
|
| 1237 |
TFR(fd = open(filename, O_RDWR)); |
| 1238 |
if (fd < 0) |
| 1239 |
return NULL; |
| 1240 |
|
| 1241 |
if (ioctl(fd, PPCLAIM) < 0) { |
| 1242 |
close(fd); |
| 1243 |
return NULL; |
| 1244 |
} |
| 1245 |
|
| 1246 |
drv = qemu_mallocz(sizeof(ParallelCharDriver));
|
| 1247 |
if (!drv) {
|
| 1248 |
close(fd); |
| 1249 |
return NULL; |
| 1250 |
} |
| 1251 |
drv->fd = fd; |
| 1252 |
drv->mode = IEEE1284_MODE_COMPAT; |
| 1253 |
|
| 1254 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1255 |
if (!chr) {
|
| 1256 |
qemu_free(drv); |
| 1257 |
close(fd); |
| 1258 |
return NULL; |
| 1259 |
} |
| 1260 |
chr->chr_write = null_chr_write; |
| 1261 |
chr->chr_ioctl = pp_ioctl; |
| 1262 |
chr->chr_close = pp_close; |
| 1263 |
chr->opaque = drv; |
| 1264 |
|
| 1265 |
qemu_chr_reset(chr); |
| 1266 |
|
| 1267 |
return chr;
|
| 1268 |
} |
| 1269 |
#endif /* __linux__ */ |
| 1270 |
|
| 1271 |
#else /* _WIN32 */ |
| 1272 |
|
| 1273 |
typedef struct { |
| 1274 |
int max_size;
|
| 1275 |
HANDLE hcom, hrecv, hsend; |
| 1276 |
OVERLAPPED orecv, osend; |
| 1277 |
BOOL fpipe; |
| 1278 |
DWORD len; |
| 1279 |
} WinCharState; |
| 1280 |
|
| 1281 |
#define NSENDBUF 2048 |
| 1282 |
#define NRECVBUF 2048 |
| 1283 |
#define MAXCONNECT 1 |
| 1284 |
#define NTIMEOUT 5000 |
| 1285 |
|
| 1286 |
static int win_chr_poll(void *opaque); |
| 1287 |
static int win_chr_pipe_poll(void *opaque); |
| 1288 |
|
| 1289 |
static void win_chr_close(CharDriverState *chr) |
| 1290 |
{
|
| 1291 |
WinCharState *s = chr->opaque; |
| 1292 |
|
| 1293 |
if (s->hsend) {
|
| 1294 |
CloseHandle(s->hsend); |
| 1295 |
s->hsend = NULL;
|
| 1296 |
} |
| 1297 |
if (s->hrecv) {
|
| 1298 |
CloseHandle(s->hrecv); |
| 1299 |
s->hrecv = NULL;
|
| 1300 |
} |
| 1301 |
if (s->hcom) {
|
| 1302 |
CloseHandle(s->hcom); |
| 1303 |
s->hcom = NULL;
|
| 1304 |
} |
| 1305 |
if (s->fpipe)
|
| 1306 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
| 1307 |
else
|
| 1308 |
qemu_del_polling_cb(win_chr_poll, chr); |
| 1309 |
} |
| 1310 |
|
| 1311 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
| 1312 |
{
|
| 1313 |
WinCharState *s = chr->opaque; |
| 1314 |
COMMCONFIG comcfg; |
| 1315 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
|
| 1316 |
COMSTAT comstat; |
| 1317 |
DWORD size; |
| 1318 |
DWORD err; |
| 1319 |
|
| 1320 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1321 |
if (!s->hsend) {
|
| 1322 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1323 |
goto fail;
|
| 1324 |
} |
| 1325 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1326 |
if (!s->hrecv) {
|
| 1327 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1328 |
goto fail;
|
| 1329 |
} |
| 1330 |
|
| 1331 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
| 1332 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
| 1333 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
| 1334 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
| 1335 |
s->hcom = NULL;
|
| 1336 |
goto fail;
|
| 1337 |
} |
| 1338 |
|
| 1339 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
| 1340 |
fprintf(stderr, "Failed SetupComm\n");
|
| 1341 |
goto fail;
|
| 1342 |
} |
| 1343 |
|
| 1344 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
| 1345 |
size = sizeof(COMMCONFIG);
|
| 1346 |
GetDefaultCommConfig(filename, &comcfg, &size); |
| 1347 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
| 1348 |
CommConfigDialog(filename, NULL, &comcfg);
|
| 1349 |
|
| 1350 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
| 1351 |
fprintf(stderr, "Failed SetCommState\n");
|
| 1352 |
goto fail;
|
| 1353 |
} |
| 1354 |
|
| 1355 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
| 1356 |
fprintf(stderr, "Failed SetCommMask\n");
|
| 1357 |
goto fail;
|
| 1358 |
} |
| 1359 |
|
| 1360 |
cto.ReadIntervalTimeout = MAXDWORD; |
| 1361 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
| 1362 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
| 1363 |
goto fail;
|
| 1364 |
} |
| 1365 |
|
| 1366 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
| 1367 |
fprintf(stderr, "Failed ClearCommError\n");
|
| 1368 |
goto fail;
|
| 1369 |
} |
| 1370 |
qemu_add_polling_cb(win_chr_poll, chr); |
| 1371 |
return 0; |
| 1372 |
|
| 1373 |
fail:
|
| 1374 |
win_chr_close(chr); |
| 1375 |
return -1; |
| 1376 |
} |
| 1377 |
|
| 1378 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
| 1379 |
{
|
| 1380 |
WinCharState *s = chr->opaque; |
| 1381 |
DWORD len, ret, size, err; |
| 1382 |
|
| 1383 |
len = len1; |
| 1384 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
| 1385 |
s->osend.hEvent = s->hsend; |
| 1386 |
while (len > 0) { |
| 1387 |
if (s->hsend)
|
| 1388 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
| 1389 |
else
|
| 1390 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
| 1391 |
if (!ret) {
|
| 1392 |
err = GetLastError(); |
| 1393 |
if (err == ERROR_IO_PENDING) {
|
| 1394 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
| 1395 |
if (ret) {
|
| 1396 |
buf += size; |
| 1397 |
len -= size; |
| 1398 |
} else {
|
| 1399 |
break;
|
| 1400 |
} |
| 1401 |
} else {
|
| 1402 |
break;
|
| 1403 |
} |
| 1404 |
} else {
|
| 1405 |
buf += size; |
| 1406 |
len -= size; |
| 1407 |
} |
| 1408 |
} |
| 1409 |
return len1 - len;
|
| 1410 |
} |
| 1411 |
|
| 1412 |
static int win_chr_read_poll(CharDriverState *chr) |
| 1413 |
{
|
| 1414 |
WinCharState *s = chr->opaque; |
| 1415 |
|
| 1416 |
s->max_size = qemu_chr_can_read(chr); |
| 1417 |
return s->max_size;
|
| 1418 |
} |
| 1419 |
|
| 1420 |
static void win_chr_readfile(CharDriverState *chr) |
| 1421 |
{
|
| 1422 |
WinCharState *s = chr->opaque; |
| 1423 |
int ret, err;
|
| 1424 |
uint8_t buf[1024];
|
| 1425 |
DWORD size; |
| 1426 |
|
| 1427 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
| 1428 |
s->orecv.hEvent = s->hrecv; |
| 1429 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
| 1430 |
if (!ret) {
|
| 1431 |
err = GetLastError(); |
| 1432 |
if (err == ERROR_IO_PENDING) {
|
| 1433 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
| 1434 |
} |
| 1435 |
} |
| 1436 |
|
| 1437 |
if (size > 0) { |
| 1438 |
qemu_chr_read(chr, buf, size); |
| 1439 |
} |
| 1440 |
} |
| 1441 |
|
| 1442 |
static void win_chr_read(CharDriverState *chr) |
| 1443 |
{
|
| 1444 |
WinCharState *s = chr->opaque; |
| 1445 |
|
| 1446 |
if (s->len > s->max_size)
|
| 1447 |
s->len = s->max_size; |
| 1448 |
if (s->len == 0) |
| 1449 |
return;
|
| 1450 |
|
| 1451 |
win_chr_readfile(chr); |
| 1452 |
} |
| 1453 |
|
| 1454 |
static int win_chr_poll(void *opaque) |
| 1455 |
{
|
| 1456 |
CharDriverState *chr = opaque; |
| 1457 |
WinCharState *s = chr->opaque; |
| 1458 |
COMSTAT status; |
| 1459 |
DWORD comerr; |
| 1460 |
|
| 1461 |
ClearCommError(s->hcom, &comerr, &status); |
| 1462 |
if (status.cbInQue > 0) { |
| 1463 |
s->len = status.cbInQue; |
| 1464 |
win_chr_read_poll(chr); |
| 1465 |
win_chr_read(chr); |
| 1466 |
return 1; |
| 1467 |
} |
| 1468 |
return 0; |
| 1469 |
} |
| 1470 |
|
| 1471 |
static CharDriverState *qemu_chr_open_win(const char *filename) |
| 1472 |
{
|
| 1473 |
CharDriverState *chr; |
| 1474 |
WinCharState *s; |
| 1475 |
|
| 1476 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1477 |
if (!chr)
|
| 1478 |
return NULL; |
| 1479 |
s = qemu_mallocz(sizeof(WinCharState));
|
| 1480 |
if (!s) {
|
| 1481 |
free(chr); |
| 1482 |
return NULL; |
| 1483 |
} |
| 1484 |
chr->opaque = s; |
| 1485 |
chr->chr_write = win_chr_write; |
| 1486 |
chr->chr_close = win_chr_close; |
| 1487 |
|
| 1488 |
if (win_chr_init(chr, filename) < 0) { |
| 1489 |
free(s); |
| 1490 |
free(chr); |
| 1491 |
return NULL; |
| 1492 |
} |
| 1493 |
qemu_chr_reset(chr); |
| 1494 |
return chr;
|
| 1495 |
} |
| 1496 |
|
| 1497 |
static int win_chr_pipe_poll(void *opaque) |
| 1498 |
{
|
| 1499 |
CharDriverState *chr = opaque; |
| 1500 |
WinCharState *s = chr->opaque; |
| 1501 |
DWORD size; |
| 1502 |
|
| 1503 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
| 1504 |
if (size > 0) { |
| 1505 |
s->len = size; |
| 1506 |
win_chr_read_poll(chr); |
| 1507 |
win_chr_read(chr); |
| 1508 |
return 1; |
| 1509 |
} |
| 1510 |
return 0; |
| 1511 |
} |
| 1512 |
|
| 1513 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
| 1514 |
{
|
| 1515 |
WinCharState *s = chr->opaque; |
| 1516 |
OVERLAPPED ov; |
| 1517 |
int ret;
|
| 1518 |
DWORD size; |
| 1519 |
char openname[256]; |
| 1520 |
|
| 1521 |
s->fpipe = TRUE; |
| 1522 |
|
| 1523 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1524 |
if (!s->hsend) {
|
| 1525 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1526 |
goto fail;
|
| 1527 |
} |
| 1528 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1529 |
if (!s->hrecv) {
|
| 1530 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1531 |
goto fail;
|
| 1532 |
} |
| 1533 |
|
| 1534 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
| 1535 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
| 1536 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
| 1537 |
PIPE_WAIT, |
| 1538 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
| 1539 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
| 1540 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
| 1541 |
s->hcom = NULL;
|
| 1542 |
goto fail;
|
| 1543 |
} |
| 1544 |
|
| 1545 |
ZeroMemory(&ov, sizeof(ov));
|
| 1546 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1547 |
ret = ConnectNamedPipe(s->hcom, &ov); |
| 1548 |
if (ret) {
|
| 1549 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
| 1550 |
goto fail;
|
| 1551 |
} |
| 1552 |
|
| 1553 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
| 1554 |
if (!ret) {
|
| 1555 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
| 1556 |
if (ov.hEvent) {
|
| 1557 |
CloseHandle(ov.hEvent); |
| 1558 |
ov.hEvent = NULL;
|
| 1559 |
} |
| 1560 |
goto fail;
|
| 1561 |
} |
| 1562 |
|
| 1563 |
if (ov.hEvent) {
|
| 1564 |
CloseHandle(ov.hEvent); |
| 1565 |
ov.hEvent = NULL;
|
| 1566 |
} |
| 1567 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
| 1568 |
return 0; |
| 1569 |
|
| 1570 |
fail:
|
| 1571 |
win_chr_close(chr); |
| 1572 |
return -1; |
| 1573 |
} |
| 1574 |
|
| 1575 |
|
| 1576 |
static CharDriverState *qemu_chr_open_win_pipe(const char *filename) |
| 1577 |
{
|
| 1578 |
CharDriverState *chr; |
| 1579 |
WinCharState *s; |
| 1580 |
|
| 1581 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1582 |
if (!chr)
|
| 1583 |
return NULL; |
| 1584 |
s = qemu_mallocz(sizeof(WinCharState));
|
| 1585 |
if (!s) {
|
| 1586 |
free(chr); |
| 1587 |
return NULL; |
| 1588 |
} |
| 1589 |
chr->opaque = s; |
| 1590 |
chr->chr_write = win_chr_write; |
| 1591 |
chr->chr_close = win_chr_close; |
| 1592 |
|
| 1593 |
if (win_chr_pipe_init(chr, filename) < 0) { |
| 1594 |
free(s); |
| 1595 |
free(chr); |
| 1596 |
return NULL; |
| 1597 |
} |
| 1598 |
qemu_chr_reset(chr); |
| 1599 |
return chr;
|
| 1600 |
} |
| 1601 |
|
| 1602 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
| 1603 |
{
|
| 1604 |
CharDriverState *chr; |
| 1605 |
WinCharState *s; |
| 1606 |
|
| 1607 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1608 |
if (!chr)
|
| 1609 |
return NULL; |
| 1610 |
s = qemu_mallocz(sizeof(WinCharState));
|
| 1611 |
if (!s) {
|
| 1612 |
free(chr); |
| 1613 |
return NULL; |
| 1614 |
} |
| 1615 |
s->hcom = fd_out; |
| 1616 |
chr->opaque = s; |
| 1617 |
chr->chr_write = win_chr_write; |
| 1618 |
qemu_chr_reset(chr); |
| 1619 |
return chr;
|
| 1620 |
} |
| 1621 |
|
| 1622 |
static CharDriverState *qemu_chr_open_win_con(const char *filename) |
| 1623 |
{
|
| 1624 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
| 1625 |
} |
| 1626 |
|
| 1627 |
static CharDriverState *qemu_chr_open_win_file_out(const char *file_out) |
| 1628 |
{
|
| 1629 |
HANDLE fd_out; |
| 1630 |
|
| 1631 |
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
| 1632 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
| 1633 |
if (fd_out == INVALID_HANDLE_VALUE)
|
| 1634 |
return NULL; |
| 1635 |
|
| 1636 |
return qemu_chr_open_win_file(fd_out);
|
| 1637 |
} |
| 1638 |
#endif /* !_WIN32 */ |
| 1639 |
|
| 1640 |
/***********************************************************/
|
| 1641 |
/* UDP Net console */
|
| 1642 |
|
| 1643 |
typedef struct { |
| 1644 |
int fd;
|
| 1645 |
struct sockaddr_in daddr;
|
| 1646 |
uint8_t buf[1024];
|
| 1647 |
int bufcnt;
|
| 1648 |
int bufptr;
|
| 1649 |
int max_size;
|
| 1650 |
} NetCharDriver; |
| 1651 |
|
| 1652 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 1653 |
{
|
| 1654 |
NetCharDriver *s = chr->opaque; |
| 1655 |
|
| 1656 |
return sendto(s->fd, buf, len, 0, |
| 1657 |
(struct sockaddr *)&s->daddr, sizeof(struct sockaddr_in)); |
| 1658 |
} |
| 1659 |
|
| 1660 |
static int udp_chr_read_poll(void *opaque) |
| 1661 |
{
|
| 1662 |
CharDriverState *chr = opaque; |
| 1663 |
NetCharDriver *s = chr->opaque; |
| 1664 |
|
| 1665 |
s->max_size = qemu_chr_can_read(chr); |
| 1666 |
|
| 1667 |
/* If there were any stray characters in the queue process them
|
| 1668 |
* first
|
| 1669 |
*/
|
| 1670 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
| 1671 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
| 1672 |
s->bufptr++; |
| 1673 |
s->max_size = qemu_chr_can_read(chr); |
| 1674 |
} |
| 1675 |
return s->max_size;
|
| 1676 |
} |
| 1677 |
|
| 1678 |
static void udp_chr_read(void *opaque) |
| 1679 |
{
|
| 1680 |
CharDriverState *chr = opaque; |
| 1681 |
NetCharDriver *s = chr->opaque; |
| 1682 |
|
| 1683 |
if (s->max_size == 0) |
| 1684 |
return;
|
| 1685 |
s->bufcnt = recv(s->fd, s->buf, sizeof(s->buf), 0); |
| 1686 |
s->bufptr = s->bufcnt; |
| 1687 |
if (s->bufcnt <= 0) |
| 1688 |
return;
|
| 1689 |
|
| 1690 |
s->bufptr = 0;
|
| 1691 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
| 1692 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
| 1693 |
s->bufptr++; |
| 1694 |
s->max_size = qemu_chr_can_read(chr); |
| 1695 |
} |
| 1696 |
} |
| 1697 |
|
| 1698 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
| 1699 |
{
|
| 1700 |
NetCharDriver *s = chr->opaque; |
| 1701 |
|
| 1702 |
if (s->fd >= 0) { |
| 1703 |
qemu_set_fd_handler2(s->fd, udp_chr_read_poll, |
| 1704 |
udp_chr_read, NULL, chr);
|
| 1705 |
} |
| 1706 |
} |
| 1707 |
|
| 1708 |
static CharDriverState *qemu_chr_open_udp(const char *def) |
| 1709 |
{
|
| 1710 |
CharDriverState *chr = NULL;
|
| 1711 |
NetCharDriver *s = NULL;
|
| 1712 |
int fd = -1; |
| 1713 |
struct sockaddr_in saddr;
|
| 1714 |
|
| 1715 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1716 |
if (!chr)
|
| 1717 |
goto return_err;
|
| 1718 |
s = qemu_mallocz(sizeof(NetCharDriver));
|
| 1719 |
if (!s)
|
| 1720 |
goto return_err;
|
| 1721 |
|
| 1722 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
| 1723 |
if (fd < 0) { |
| 1724 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
| 1725 |
goto return_err;
|
| 1726 |
} |
| 1727 |
|
| 1728 |
if (parse_host_src_port(&s->daddr, &saddr, def) < 0) { |
| 1729 |
printf("Could not parse: %s\n", def);
|
| 1730 |
goto return_err;
|
| 1731 |
} |
| 1732 |
|
| 1733 |
if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)) < 0) |
| 1734 |
{
|
| 1735 |
perror("bind");
|
| 1736 |
goto return_err;
|
| 1737 |
} |
| 1738 |
|
| 1739 |
s->fd = fd; |
| 1740 |
s->bufcnt = 0;
|
| 1741 |
s->bufptr = 0;
|
| 1742 |
chr->opaque = s; |
| 1743 |
chr->chr_write = udp_chr_write; |
| 1744 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
| 1745 |
return chr;
|
| 1746 |
|
| 1747 |
return_err:
|
| 1748 |
if (chr)
|
| 1749 |
free(chr); |
| 1750 |
if (s)
|
| 1751 |
free(s); |
| 1752 |
if (fd >= 0) |
| 1753 |
closesocket(fd); |
| 1754 |
return NULL; |
| 1755 |
} |
| 1756 |
|
| 1757 |
/***********************************************************/
|
| 1758 |
/* TCP Net console */
|
| 1759 |
|
| 1760 |
typedef struct { |
| 1761 |
int fd, listen_fd;
|
| 1762 |
int connected;
|
| 1763 |
int max_size;
|
| 1764 |
int do_telnetopt;
|
| 1765 |
int do_nodelay;
|
| 1766 |
int is_unix;
|
| 1767 |
} TCPCharDriver; |
| 1768 |
|
| 1769 |
static void tcp_chr_accept(void *opaque); |
| 1770 |
|
| 1771 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 1772 |
{
|
| 1773 |
TCPCharDriver *s = chr->opaque; |
| 1774 |
if (s->connected) {
|
| 1775 |
return send_all(s->fd, buf, len);
|
| 1776 |
} else {
|
| 1777 |
/* XXX: indicate an error ? */
|
| 1778 |
return len;
|
| 1779 |
} |
| 1780 |
} |
| 1781 |
|
| 1782 |
static int tcp_chr_read_poll(void *opaque) |
| 1783 |
{
|
| 1784 |
CharDriverState *chr = opaque; |
| 1785 |
TCPCharDriver *s = chr->opaque; |
| 1786 |
if (!s->connected)
|
| 1787 |
return 0; |
| 1788 |
s->max_size = qemu_chr_can_read(chr); |
| 1789 |
return s->max_size;
|
| 1790 |
} |
| 1791 |
|
| 1792 |
#define IAC 255 |
| 1793 |
#define IAC_BREAK 243 |
| 1794 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
| 1795 |
TCPCharDriver *s, |
| 1796 |
uint8_t *buf, int *size)
|
| 1797 |
{
|
| 1798 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
| 1799 |
* char mode with no echo. All IAC options will be removed from
|
| 1800 |
* the buf and the do_telnetopt variable will be used to track the
|
| 1801 |
* state of the width of the IAC information.
|
| 1802 |
*
|
| 1803 |
* IAC commands come in sets of 3 bytes with the exception of the
|
| 1804 |
* "IAC BREAK" command and the double IAC.
|
| 1805 |
*/
|
| 1806 |
|
| 1807 |
int i;
|
| 1808 |
int j = 0; |
| 1809 |
|
| 1810 |
for (i = 0; i < *size; i++) { |
| 1811 |
if (s->do_telnetopt > 1) { |
| 1812 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
| 1813 |
/* Double IAC means send an IAC */
|
| 1814 |
if (j != i)
|
| 1815 |
buf[j] = buf[i]; |
| 1816 |
j++; |
| 1817 |
s->do_telnetopt = 1;
|
| 1818 |
} else {
|
| 1819 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
| 1820 |
/* Handle IAC break commands by sending a serial break */
|
| 1821 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
| 1822 |
s->do_telnetopt++; |
| 1823 |
} |
| 1824 |
s->do_telnetopt++; |
| 1825 |
} |
| 1826 |
if (s->do_telnetopt >= 4) { |
| 1827 |
s->do_telnetopt = 1;
|
| 1828 |
} |
| 1829 |
} else {
|
| 1830 |
if ((unsigned char)buf[i] == IAC) { |
| 1831 |
s->do_telnetopt = 2;
|
| 1832 |
} else {
|
| 1833 |
if (j != i)
|
| 1834 |
buf[j] = buf[i]; |
| 1835 |
j++; |
| 1836 |
} |
| 1837 |
} |
| 1838 |
} |
| 1839 |
*size = j; |
| 1840 |
} |
| 1841 |
|
| 1842 |
static void tcp_chr_read(void *opaque) |
| 1843 |
{
|
| 1844 |
CharDriverState *chr = opaque; |
| 1845 |
TCPCharDriver *s = chr->opaque; |
| 1846 |
uint8_t buf[1024];
|
| 1847 |
int len, size;
|
| 1848 |
|
| 1849 |
if (!s->connected || s->max_size <= 0) |
| 1850 |
return;
|
| 1851 |
len = sizeof(buf);
|
| 1852 |
if (len > s->max_size)
|
| 1853 |
len = s->max_size; |
| 1854 |
size = recv(s->fd, buf, len, 0);
|
| 1855 |
if (size == 0) { |
| 1856 |
/* connection closed */
|
| 1857 |
s->connected = 0;
|
| 1858 |
if (s->listen_fd >= 0) { |
| 1859 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
| 1860 |
} |
| 1861 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 1862 |
closesocket(s->fd); |
| 1863 |
s->fd = -1;
|
| 1864 |
} else if (size > 0) { |
| 1865 |
if (s->do_telnetopt)
|
| 1866 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
| 1867 |
if (size > 0) |
| 1868 |
qemu_chr_read(chr, buf, size); |
| 1869 |
} |
| 1870 |
} |
| 1871 |
|
| 1872 |
static void tcp_chr_connect(void *opaque) |
| 1873 |
{
|
| 1874 |
CharDriverState *chr = opaque; |
| 1875 |
TCPCharDriver *s = chr->opaque; |
| 1876 |
|
| 1877 |
s->connected = 1;
|
| 1878 |
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, |
| 1879 |
tcp_chr_read, NULL, chr);
|
| 1880 |
qemu_chr_reset(chr); |
| 1881 |
} |
| 1882 |
|
| 1883 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
| 1884 |
static void tcp_chr_telnet_init(int fd) |
| 1885 |
{
|
| 1886 |
char buf[3]; |
| 1887 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
| 1888 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
| 1889 |
send(fd, (char *)buf, 3, 0); |
| 1890 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
| 1891 |
send(fd, (char *)buf, 3, 0); |
| 1892 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
| 1893 |
send(fd, (char *)buf, 3, 0); |
| 1894 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
| 1895 |
send(fd, (char *)buf, 3, 0); |
| 1896 |
} |
| 1897 |
|
| 1898 |
static void socket_set_nodelay(int fd) |
| 1899 |
{
|
| 1900 |
int val = 1; |
| 1901 |
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
| 1902 |
} |
| 1903 |
|
| 1904 |
static void tcp_chr_accept(void *opaque) |
| 1905 |
{
|
| 1906 |
CharDriverState *chr = opaque; |
| 1907 |
TCPCharDriver *s = chr->opaque; |
| 1908 |
struct sockaddr_in saddr;
|
| 1909 |
#ifndef _WIN32
|
| 1910 |
struct sockaddr_un uaddr;
|
| 1911 |
#endif
|
| 1912 |
struct sockaddr *addr;
|
| 1913 |
socklen_t len; |
| 1914 |
int fd;
|
| 1915 |
|
| 1916 |
for(;;) {
|
| 1917 |
#ifndef _WIN32
|
| 1918 |
if (s->is_unix) {
|
| 1919 |
len = sizeof(uaddr);
|
| 1920 |
addr = (struct sockaddr *)&uaddr;
|
| 1921 |
} else
|
| 1922 |
#endif
|
| 1923 |
{
|
| 1924 |
len = sizeof(saddr);
|
| 1925 |
addr = (struct sockaddr *)&saddr;
|
| 1926 |
} |
| 1927 |
fd = accept(s->listen_fd, addr, &len); |
| 1928 |
if (fd < 0 && errno != EINTR) { |
| 1929 |
return;
|
| 1930 |
} else if (fd >= 0) { |
| 1931 |
if (s->do_telnetopt)
|
| 1932 |
tcp_chr_telnet_init(fd); |
| 1933 |
break;
|
| 1934 |
} |
| 1935 |
} |
| 1936 |
socket_set_nonblock(fd); |
| 1937 |
if (s->do_nodelay)
|
| 1938 |
socket_set_nodelay(fd); |
| 1939 |
s->fd = fd; |
| 1940 |
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
| 1941 |
tcp_chr_connect(chr); |
| 1942 |
} |
| 1943 |
|
| 1944 |
static void tcp_chr_close(CharDriverState *chr) |
| 1945 |
{
|
| 1946 |
TCPCharDriver *s = chr->opaque; |
| 1947 |
if (s->fd >= 0) |
| 1948 |
closesocket(s->fd); |
| 1949 |
if (s->listen_fd >= 0) |
| 1950 |
closesocket(s->listen_fd); |
| 1951 |
qemu_free(s); |
| 1952 |
} |
| 1953 |
|
| 1954 |
static CharDriverState *qemu_chr_open_tcp(const char *host_str, |
| 1955 |
int is_telnet,
|
| 1956 |
int is_unix)
|
| 1957 |
{
|
| 1958 |
CharDriverState *chr = NULL;
|
| 1959 |
TCPCharDriver *s = NULL;
|
| 1960 |
int fd = -1, ret, err, val; |
| 1961 |
int is_listen = 0; |
| 1962 |
int is_waitconnect = 1; |
| 1963 |
int do_nodelay = 0; |
| 1964 |
const char *ptr; |
| 1965 |
struct sockaddr_in saddr;
|
| 1966 |
#ifndef _WIN32
|
| 1967 |
struct sockaddr_un uaddr;
|
| 1968 |
#endif
|
| 1969 |
struct sockaddr *addr;
|
| 1970 |
socklen_t addrlen; |
| 1971 |
|
| 1972 |
#ifndef _WIN32
|
| 1973 |
if (is_unix) {
|
| 1974 |
addr = (struct sockaddr *)&uaddr;
|
| 1975 |
addrlen = sizeof(uaddr);
|
| 1976 |
if (parse_unix_path(&uaddr, host_str) < 0) |
| 1977 |
goto fail;
|
| 1978 |
} else
|
| 1979 |
#endif
|
| 1980 |
{
|
| 1981 |
addr = (struct sockaddr *)&saddr;
|
| 1982 |
addrlen = sizeof(saddr);
|
| 1983 |
if (parse_host_port(&saddr, host_str) < 0) |
| 1984 |
goto fail;
|
| 1985 |
} |
| 1986 |
|
| 1987 |
ptr = host_str; |
| 1988 |
while((ptr = strchr(ptr,','))) { |
| 1989 |
ptr++; |
| 1990 |
if (!strncmp(ptr,"server",6)) { |
| 1991 |
is_listen = 1;
|
| 1992 |
} else if (!strncmp(ptr,"nowait",6)) { |
| 1993 |
is_waitconnect = 0;
|
| 1994 |
} else if (!strncmp(ptr,"nodelay",6)) { |
| 1995 |
do_nodelay = 1;
|
| 1996 |
} else {
|
| 1997 |
printf("Unknown option: %s\n", ptr);
|
| 1998 |
goto fail;
|
| 1999 |
} |
| 2000 |
} |
| 2001 |
if (!is_listen)
|
| 2002 |
is_waitconnect = 0;
|
| 2003 |
|
| 2004 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 2005 |
if (!chr)
|
| 2006 |
goto fail;
|
| 2007 |
s = qemu_mallocz(sizeof(TCPCharDriver));
|
| 2008 |
if (!s)
|
| 2009 |
goto fail;
|
| 2010 |
|
| 2011 |
#ifndef _WIN32
|
| 2012 |
if (is_unix)
|
| 2013 |
fd = socket(PF_UNIX, SOCK_STREAM, 0);
|
| 2014 |
else
|
| 2015 |
#endif
|
| 2016 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
| 2017 |
|
| 2018 |
if (fd < 0) |
| 2019 |
goto fail;
|
| 2020 |
|
| 2021 |
if (!is_waitconnect)
|
| 2022 |
socket_set_nonblock(fd); |
| 2023 |
|
| 2024 |
s->connected = 0;
|
| 2025 |
s->fd = -1;
|
| 2026 |
s->listen_fd = -1;
|
| 2027 |
s->is_unix = is_unix; |
| 2028 |
s->do_nodelay = do_nodelay && !is_unix; |
| 2029 |
|
| 2030 |
chr->opaque = s; |
| 2031 |
chr->chr_write = tcp_chr_write; |
| 2032 |
chr->chr_close = tcp_chr_close; |
| 2033 |
|
| 2034 |
if (is_listen) {
|
| 2035 |
/* allow fast reuse */
|
| 2036 |
#ifndef _WIN32
|
| 2037 |
if (is_unix) {
|
| 2038 |
char path[109]; |
| 2039 |
pstrcpy(path, sizeof(path), uaddr.sun_path);
|
| 2040 |
unlink(path); |
| 2041 |
} else
|
| 2042 |
#endif
|
| 2043 |
{
|
| 2044 |
val = 1;
|
| 2045 |
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); |
| 2046 |
} |
| 2047 |
|
| 2048 |
ret = bind(fd, addr, addrlen); |
| 2049 |
if (ret < 0) |
| 2050 |
goto fail;
|
| 2051 |
|
| 2052 |
ret = listen(fd, 0);
|
| 2053 |
if (ret < 0) |
| 2054 |
goto fail;
|
| 2055 |
|
| 2056 |
s->listen_fd = fd; |
| 2057 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
| 2058 |
if (is_telnet)
|
| 2059 |
s->do_telnetopt = 1;
|
| 2060 |
} else {
|
| 2061 |
for(;;) {
|
| 2062 |
ret = connect(fd, addr, addrlen); |
| 2063 |
if (ret < 0) { |
| 2064 |
err = socket_error(); |
| 2065 |
if (err == EINTR || err == EWOULDBLOCK) {
|
| 2066 |
} else if (err == EINPROGRESS) { |
| 2067 |
break;
|
| 2068 |
#ifdef _WIN32
|
| 2069 |
} else if (err == WSAEALREADY) { |
| 2070 |
break;
|
| 2071 |
#endif
|
| 2072 |
} else {
|
| 2073 |
goto fail;
|
| 2074 |
} |
| 2075 |
} else {
|
| 2076 |
s->connected = 1;
|
| 2077 |
break;
|
| 2078 |
} |
| 2079 |
} |
| 2080 |
s->fd = fd; |
| 2081 |
socket_set_nodelay(fd); |
| 2082 |
if (s->connected)
|
| 2083 |
tcp_chr_connect(chr); |
| 2084 |
else
|
| 2085 |
qemu_set_fd_handler(s->fd, NULL, tcp_chr_connect, chr);
|
| 2086 |
} |
| 2087 |
|
| 2088 |
if (is_listen && is_waitconnect) {
|
| 2089 |
printf("QEMU waiting for connection on: %s\n", host_str);
|
| 2090 |
tcp_chr_accept(chr); |
| 2091 |
socket_set_nonblock(s->listen_fd); |
| 2092 |
} |
| 2093 |
|
| 2094 |
return chr;
|
| 2095 |
fail:
|
| 2096 |
if (fd >= 0) |
| 2097 |
closesocket(fd); |
| 2098 |
qemu_free(s); |
| 2099 |
qemu_free(chr); |
| 2100 |
return NULL; |
| 2101 |
} |
| 2102 |
|
| 2103 |
static TAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs
|
| 2104 |
= TAILQ_HEAD_INITIALIZER(chardevs); |
| 2105 |
|
| 2106 |
CharDriverState *qemu_chr_open(const char *label, const char *filename) |
| 2107 |
{
|
| 2108 |
const char *p; |
| 2109 |
CharDriverState *chr; |
| 2110 |
|
| 2111 |
if (!strcmp(filename, "vc")) { |
| 2112 |
chr = text_console_init(&display_state, 0);
|
| 2113 |
} else
|
| 2114 |
if (strstart(filename, "vc:", &p)) { |
| 2115 |
chr = text_console_init(&display_state, p); |
| 2116 |
} else
|
| 2117 |
if (!strcmp(filename, "null")) { |
| 2118 |
chr = qemu_chr_open_null(); |
| 2119 |
} else
|
| 2120 |
if (strstart(filename, "tcp:", &p)) { |
| 2121 |
chr = qemu_chr_open_tcp(p, 0, 0); |
| 2122 |
} else
|
| 2123 |
if (strstart(filename, "telnet:", &p)) { |
| 2124 |
chr = qemu_chr_open_tcp(p, 1, 0); |
| 2125 |
} else
|
| 2126 |
if (strstart(filename, "udp:", &p)) { |
| 2127 |
chr = qemu_chr_open_udp(p); |
| 2128 |
} else
|
| 2129 |
if (strstart(filename, "mon:", &p)) { |
| 2130 |
chr = qemu_chr_open(label, p); |
| 2131 |
if (chr) {
|
| 2132 |
chr = qemu_chr_open_mux(chr); |
| 2133 |
monitor_init(chr, !nographic); |
| 2134 |
} else {
|
| 2135 |
printf("Unable to open driver: %s\n", p);
|
| 2136 |
} |
| 2137 |
} else
|
| 2138 |
#ifndef _WIN32
|
| 2139 |
if (strstart(filename, "unix:", &p)) { |
| 2140 |
chr = qemu_chr_open_tcp(p, 0, 1); |
| 2141 |
} else if (strstart(filename, "file:", &p)) { |
| 2142 |
chr = qemu_chr_open_file_out(p); |
| 2143 |
} else if (strstart(filename, "pipe:", &p)) { |
| 2144 |
chr = qemu_chr_open_pipe(p); |
| 2145 |
} else if (!strcmp(filename, "pty")) { |
| 2146 |
chr = qemu_chr_open_pty(); |
| 2147 |
} else if (!strcmp(filename, "stdio")) { |
| 2148 |
chr = qemu_chr_open_stdio(); |
| 2149 |
} else
|
| 2150 |
#if defined(__linux__)
|
| 2151 |
if (strstart(filename, "/dev/parport", NULL)) { |
| 2152 |
chr = qemu_chr_open_pp(filename); |
| 2153 |
} else
|
| 2154 |
#endif
|
| 2155 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
| 2156 |
|| defined(__NetBSD__) || defined(__OpenBSD__) |
| 2157 |
if (strstart(filename, "/dev/", NULL)) { |
| 2158 |
chr = qemu_chr_open_tty(filename); |
| 2159 |
} else
|
| 2160 |
#endif
|
| 2161 |
#else /* !_WIN32 */ |
| 2162 |
if (strstart(filename, "COM", NULL)) { |
| 2163 |
chr = qemu_chr_open_win(filename); |
| 2164 |
} else
|
| 2165 |
if (strstart(filename, "pipe:", &p)) { |
| 2166 |
chr = qemu_chr_open_win_pipe(p); |
| 2167 |
} else
|
| 2168 |
if (strstart(filename, "con:", NULL)) { |
| 2169 |
chr = qemu_chr_open_win_con(filename); |
| 2170 |
} else
|
| 2171 |
if (strstart(filename, "file:", &p)) { |
| 2172 |
chr = qemu_chr_open_win_file_out(p); |
| 2173 |
} else
|
| 2174 |
#endif
|
| 2175 |
#ifdef CONFIG_BRLAPI
|
| 2176 |
if (!strcmp(filename, "braille")) { |
| 2177 |
chr = chr_baum_init(); |
| 2178 |
} else
|
| 2179 |
#endif
|
| 2180 |
{
|
| 2181 |
chr = NULL;
|
| 2182 |
} |
| 2183 |
|
| 2184 |
if (chr) {
|
| 2185 |
if (!chr->filename)
|
| 2186 |
chr->filename = qemu_strdup(filename); |
| 2187 |
chr->label = qemu_strdup(label); |
| 2188 |
TAILQ_INSERT_TAIL(&chardevs, chr, next); |
| 2189 |
} |
| 2190 |
return chr;
|
| 2191 |
} |
| 2192 |
|
| 2193 |
void qemu_chr_close(CharDriverState *chr)
|
| 2194 |
{
|
| 2195 |
TAILQ_REMOVE(&chardevs, chr, next); |
| 2196 |
if (chr->chr_close)
|
| 2197 |
chr->chr_close(chr); |
| 2198 |
qemu_free(chr->filename); |
| 2199 |
qemu_free(chr->label); |
| 2200 |
qemu_free(chr); |
| 2201 |
} |
| 2202 |
|
| 2203 |
void qemu_chr_info(void) |
| 2204 |
{
|
| 2205 |
CharDriverState *chr; |
| 2206 |
|
| 2207 |
TAILQ_FOREACH(chr, &chardevs, next) {
|
| 2208 |
term_printf("%s: filename=%s\n", chr->label, chr->filename);
|
| 2209 |
} |
| 2210 |
} |