root / qemu-char.c @ a74cdab4
History | View | Annotate | Download (67.8 kB)
| 1 |
/*
|
|---|---|
| 2 |
* QEMU System Emulator
|
| 3 |
*
|
| 4 |
* Copyright (c) 2003-2008 Fabrice Bellard
|
| 5 |
*
|
| 6 |
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
| 7 |
* of this software and associated documentation files (the "Software"), to deal
|
| 8 |
* in the Software without restriction, including without limitation the rights
|
| 9 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
| 10 |
* copies of the Software, and to permit persons to whom the Software is
|
| 11 |
* furnished to do so, subject to the following conditions:
|
| 12 |
*
|
| 13 |
* The above copyright notice and this permission notice shall be included in
|
| 14 |
* all copies or substantial portions of the Software.
|
| 15 |
*
|
| 16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
| 17 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
| 18 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
| 19 |
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
| 20 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
| 21 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
| 22 |
* THE SOFTWARE.
|
| 23 |
*/
|
| 24 |
#include "qemu-common.h" |
| 25 |
#include "net.h" |
| 26 |
#include "monitor.h" |
| 27 |
#include "console.h" |
| 28 |
#include "sysemu.h" |
| 29 |
#include "qemu-timer.h" |
| 30 |
#include "qemu-char.h" |
| 31 |
#include "hw/usb.h" |
| 32 |
#include "hw/baum.h" |
| 33 |
#include "hw/msmouse.h" |
| 34 |
#include "qemu-objects.h" |
| 35 |
|
| 36 |
#include <unistd.h> |
| 37 |
#include <fcntl.h> |
| 38 |
#include <signal.h> |
| 39 |
#include <time.h> |
| 40 |
#include <errno.h> |
| 41 |
#include <sys/time.h> |
| 42 |
#include <zlib.h> |
| 43 |
|
| 44 |
#ifndef _WIN32
|
| 45 |
#include <sys/times.h> |
| 46 |
#include <sys/wait.h> |
| 47 |
#include <termios.h> |
| 48 |
#include <sys/mman.h> |
| 49 |
#include <sys/ioctl.h> |
| 50 |
#include <sys/resource.h> |
| 51 |
#include <sys/socket.h> |
| 52 |
#include <netinet/in.h> |
| 53 |
#include <net/if.h> |
| 54 |
#include <arpa/inet.h> |
| 55 |
#include <dirent.h> |
| 56 |
#include <netdb.h> |
| 57 |
#include <sys/select.h> |
| 58 |
#ifdef CONFIG_BSD
|
| 59 |
#include <sys/stat.h> |
| 60 |
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
|
| 61 |
#include <libutil.h> |
| 62 |
#include <dev/ppbus/ppi.h> |
| 63 |
#include <dev/ppbus/ppbconf.h> |
| 64 |
#if defined(__GLIBC__)
|
| 65 |
#include <pty.h> |
| 66 |
#endif
|
| 67 |
#elif defined(__DragonFly__)
|
| 68 |
#include <libutil.h> |
| 69 |
#include <dev/misc/ppi/ppi.h> |
| 70 |
#include <bus/ppbus/ppbconf.h> |
| 71 |
#else
|
| 72 |
#include <util.h> |
| 73 |
#endif
|
| 74 |
#else
|
| 75 |
#ifdef __linux__
|
| 76 |
#include <pty.h> |
| 77 |
|
| 78 |
#include <linux/ppdev.h> |
| 79 |
#include <linux/parport.h> |
| 80 |
#endif
|
| 81 |
#ifdef __sun__
|
| 82 |
#include <sys/stat.h> |
| 83 |
#include <sys/ethernet.h> |
| 84 |
#include <sys/sockio.h> |
| 85 |
#include <netinet/arp.h> |
| 86 |
#include <netinet/in.h> |
| 87 |
#include <netinet/in_systm.h> |
| 88 |
#include <netinet/ip.h> |
| 89 |
#include <netinet/ip_icmp.h> // must come after ip.h |
| 90 |
#include <netinet/udp.h> |
| 91 |
#include <netinet/tcp.h> |
| 92 |
#include <net/if.h> |
| 93 |
#include <syslog.h> |
| 94 |
#include <stropts.h> |
| 95 |
#endif
|
| 96 |
#endif
|
| 97 |
#endif
|
| 98 |
|
| 99 |
#include "qemu_socket.h" |
| 100 |
#include "ui/qemu-spice.h" |
| 101 |
|
| 102 |
#define READ_BUF_LEN 4096 |
| 103 |
|
| 104 |
/***********************************************************/
|
| 105 |
/* character device */
|
| 106 |
|
| 107 |
static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs =
|
| 108 |
QTAILQ_HEAD_INITIALIZER(chardevs); |
| 109 |
|
| 110 |
static void qemu_chr_event(CharDriverState *s, int event) |
| 111 |
{
|
| 112 |
/* Keep track if the char device is open */
|
| 113 |
switch (event) {
|
| 114 |
case CHR_EVENT_OPENED:
|
| 115 |
s->opened = 1;
|
| 116 |
break;
|
| 117 |
case CHR_EVENT_CLOSED:
|
| 118 |
s->opened = 0;
|
| 119 |
break;
|
| 120 |
} |
| 121 |
|
| 122 |
if (!s->chr_event)
|
| 123 |
return;
|
| 124 |
s->chr_event(s->handler_opaque, event); |
| 125 |
} |
| 126 |
|
| 127 |
static void qemu_chr_generic_open_bh(void *opaque) |
| 128 |
{
|
| 129 |
CharDriverState *s = opaque; |
| 130 |
qemu_chr_event(s, CHR_EVENT_OPENED); |
| 131 |
qemu_bh_delete(s->bh); |
| 132 |
s->bh = NULL;
|
| 133 |
} |
| 134 |
|
| 135 |
void qemu_chr_generic_open(CharDriverState *s)
|
| 136 |
{
|
| 137 |
if (s->bh == NULL) { |
| 138 |
s->bh = qemu_bh_new(qemu_chr_generic_open_bh, s); |
| 139 |
qemu_bh_schedule(s->bh); |
| 140 |
} |
| 141 |
} |
| 142 |
|
| 143 |
int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len) |
| 144 |
{
|
| 145 |
return s->chr_write(s, buf, len);
|
| 146 |
} |
| 147 |
|
| 148 |
int qemu_chr_ioctl(CharDriverState *s, int cmd, void *arg) |
| 149 |
{
|
| 150 |
if (!s->chr_ioctl)
|
| 151 |
return -ENOTSUP;
|
| 152 |
return s->chr_ioctl(s, cmd, arg);
|
| 153 |
} |
| 154 |
|
| 155 |
int qemu_chr_can_read(CharDriverState *s)
|
| 156 |
{
|
| 157 |
if (!s->chr_can_read)
|
| 158 |
return 0; |
| 159 |
return s->chr_can_read(s->handler_opaque);
|
| 160 |
} |
| 161 |
|
| 162 |
void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len) |
| 163 |
{
|
| 164 |
s->chr_read(s->handler_opaque, buf, len); |
| 165 |
} |
| 166 |
|
| 167 |
int qemu_chr_get_msgfd(CharDriverState *s)
|
| 168 |
{
|
| 169 |
return s->get_msgfd ? s->get_msgfd(s) : -1; |
| 170 |
} |
| 171 |
|
| 172 |
void qemu_chr_accept_input(CharDriverState *s)
|
| 173 |
{
|
| 174 |
if (s->chr_accept_input)
|
| 175 |
s->chr_accept_input(s); |
| 176 |
} |
| 177 |
|
| 178 |
void qemu_chr_printf(CharDriverState *s, const char *fmt, ...) |
| 179 |
{
|
| 180 |
char buf[READ_BUF_LEN];
|
| 181 |
va_list ap; |
| 182 |
va_start(ap, fmt); |
| 183 |
vsnprintf(buf, sizeof(buf), fmt, ap);
|
| 184 |
qemu_chr_write(s, (uint8_t *)buf, strlen(buf)); |
| 185 |
va_end(ap); |
| 186 |
} |
| 187 |
|
| 188 |
void qemu_chr_send_event(CharDriverState *s, int event) |
| 189 |
{
|
| 190 |
if (s->chr_send_event)
|
| 191 |
s->chr_send_event(s, event); |
| 192 |
} |
| 193 |
|
| 194 |
void qemu_chr_add_handlers(CharDriverState *s,
|
| 195 |
IOCanReadHandler *fd_can_read, |
| 196 |
IOReadHandler *fd_read, |
| 197 |
IOEventHandler *fd_event, |
| 198 |
void *opaque)
|
| 199 |
{
|
| 200 |
if (!opaque && !fd_can_read && !fd_read && !fd_event) {
|
| 201 |
/* chr driver being released. */
|
| 202 |
++s->avail_connections; |
| 203 |
} |
| 204 |
s->chr_can_read = fd_can_read; |
| 205 |
s->chr_read = fd_read; |
| 206 |
s->chr_event = fd_event; |
| 207 |
s->handler_opaque = opaque; |
| 208 |
if (s->chr_update_read_handler)
|
| 209 |
s->chr_update_read_handler(s); |
| 210 |
|
| 211 |
/* We're connecting to an already opened device, so let's make sure we
|
| 212 |
also get the open event */
|
| 213 |
if (s->opened) {
|
| 214 |
qemu_chr_generic_open(s); |
| 215 |
} |
| 216 |
} |
| 217 |
|
| 218 |
static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 219 |
{
|
| 220 |
return len;
|
| 221 |
} |
| 222 |
|
| 223 |
static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
|
| 224 |
{
|
| 225 |
CharDriverState *chr; |
| 226 |
|
| 227 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 228 |
chr->chr_write = null_chr_write; |
| 229 |
return chr;
|
| 230 |
} |
| 231 |
|
| 232 |
/* MUX driver for serial I/O splitting */
|
| 233 |
#define MAX_MUX 4 |
| 234 |
#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */ |
| 235 |
#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1) |
| 236 |
typedef struct { |
| 237 |
IOCanReadHandler *chr_can_read[MAX_MUX]; |
| 238 |
IOReadHandler *chr_read[MAX_MUX]; |
| 239 |
IOEventHandler *chr_event[MAX_MUX]; |
| 240 |
void *ext_opaque[MAX_MUX];
|
| 241 |
CharDriverState *drv; |
| 242 |
int focus;
|
| 243 |
int mux_cnt;
|
| 244 |
int term_got_escape;
|
| 245 |
int max_size;
|
| 246 |
/* Intermediate input buffer allows to catch escape sequences even if the
|
| 247 |
currently active device is not accepting any input - but only until it
|
| 248 |
is full as well. */
|
| 249 |
unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE]; |
| 250 |
int prod[MAX_MUX];
|
| 251 |
int cons[MAX_MUX];
|
| 252 |
int timestamps;
|
| 253 |
int linestart;
|
| 254 |
int64_t timestamps_start; |
| 255 |
} MuxDriver; |
| 256 |
|
| 257 |
|
| 258 |
static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 259 |
{
|
| 260 |
MuxDriver *d = chr->opaque; |
| 261 |
int ret;
|
| 262 |
if (!d->timestamps) {
|
| 263 |
ret = d->drv->chr_write(d->drv, buf, len); |
| 264 |
} else {
|
| 265 |
int i;
|
| 266 |
|
| 267 |
ret = 0;
|
| 268 |
for (i = 0; i < len; i++) { |
| 269 |
if (d->linestart) {
|
| 270 |
char buf1[64]; |
| 271 |
int64_t ti; |
| 272 |
int secs;
|
| 273 |
|
| 274 |
ti = qemu_get_clock_ms(rt_clock); |
| 275 |
if (d->timestamps_start == -1) |
| 276 |
d->timestamps_start = ti; |
| 277 |
ti -= d->timestamps_start; |
| 278 |
secs = ti / 1000;
|
| 279 |
snprintf(buf1, sizeof(buf1),
|
| 280 |
"[%02d:%02d:%02d.%03d] ",
|
| 281 |
secs / 3600,
|
| 282 |
(secs / 60) % 60, |
| 283 |
secs % 60,
|
| 284 |
(int)(ti % 1000)); |
| 285 |
d->drv->chr_write(d->drv, (uint8_t *)buf1, strlen(buf1)); |
| 286 |
d->linestart = 0;
|
| 287 |
} |
| 288 |
ret += d->drv->chr_write(d->drv, buf+i, 1);
|
| 289 |
if (buf[i] == '\n') { |
| 290 |
d->linestart = 1;
|
| 291 |
} |
| 292 |
} |
| 293 |
} |
| 294 |
return ret;
|
| 295 |
} |
| 296 |
|
| 297 |
static const char * const mux_help[] = { |
| 298 |
"% h print this help\n\r",
|
| 299 |
"% x exit emulator\n\r",
|
| 300 |
"% s save disk data back to file (if -snapshot)\n\r",
|
| 301 |
"% t toggle console timestamps\n\r"
|
| 302 |
"% b send break (magic sysrq)\n\r",
|
| 303 |
"% c switch between console and monitor\n\r",
|
| 304 |
"% % sends %\n\r",
|
| 305 |
NULL
|
| 306 |
}; |
| 307 |
|
| 308 |
int term_escape_char = 0x01; /* ctrl-a is used for escape */ |
| 309 |
static void mux_print_help(CharDriverState *chr) |
| 310 |
{
|
| 311 |
int i, j;
|
| 312 |
char ebuf[15] = "Escape-Char"; |
| 313 |
char cbuf[50] = "\n\r"; |
| 314 |
|
| 315 |
if (term_escape_char > 0 && term_escape_char < 26) { |
| 316 |
snprintf(cbuf, sizeof(cbuf), "\n\r"); |
| 317 |
snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a'); |
| 318 |
} else {
|
| 319 |
snprintf(cbuf, sizeof(cbuf),
|
| 320 |
"\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r",
|
| 321 |
term_escape_char); |
| 322 |
} |
| 323 |
chr->chr_write(chr, (uint8_t *)cbuf, strlen(cbuf)); |
| 324 |
for (i = 0; mux_help[i] != NULL; i++) { |
| 325 |
for (j=0; mux_help[i][j] != '\0'; j++) { |
| 326 |
if (mux_help[i][j] == '%') |
| 327 |
chr->chr_write(chr, (uint8_t *)ebuf, strlen(ebuf)); |
| 328 |
else
|
| 329 |
chr->chr_write(chr, (uint8_t *)&mux_help[i][j], 1);
|
| 330 |
} |
| 331 |
} |
| 332 |
} |
| 333 |
|
| 334 |
static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event) |
| 335 |
{
|
| 336 |
if (d->chr_event[mux_nr])
|
| 337 |
d->chr_event[mux_nr](d->ext_opaque[mux_nr], event); |
| 338 |
} |
| 339 |
|
| 340 |
static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
| 341 |
{
|
| 342 |
if (d->term_got_escape) {
|
| 343 |
d->term_got_escape = 0;
|
| 344 |
if (ch == term_escape_char)
|
| 345 |
goto send_char;
|
| 346 |
switch(ch) {
|
| 347 |
case '?': |
| 348 |
case 'h': |
| 349 |
mux_print_help(chr); |
| 350 |
break;
|
| 351 |
case 'x': |
| 352 |
{
|
| 353 |
const char *term = "QEMU: Terminated\n\r"; |
| 354 |
chr->chr_write(chr,(uint8_t *)term,strlen(term)); |
| 355 |
exit(0);
|
| 356 |
break;
|
| 357 |
} |
| 358 |
case 's': |
| 359 |
bdrv_commit_all(); |
| 360 |
break;
|
| 361 |
case 'b': |
| 362 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
| 363 |
break;
|
| 364 |
case 'c': |
| 365 |
/* Switch to the next registered device */
|
| 366 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
| 367 |
d->focus++; |
| 368 |
if (d->focus >= d->mux_cnt)
|
| 369 |
d->focus = 0;
|
| 370 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
| 371 |
break;
|
| 372 |
case 't': |
| 373 |
d->timestamps = !d->timestamps; |
| 374 |
d->timestamps_start = -1;
|
| 375 |
d->linestart = 0;
|
| 376 |
break;
|
| 377 |
} |
| 378 |
} else if (ch == term_escape_char) { |
| 379 |
d->term_got_escape = 1;
|
| 380 |
} else {
|
| 381 |
send_char:
|
| 382 |
return 1; |
| 383 |
} |
| 384 |
return 0; |
| 385 |
} |
| 386 |
|
| 387 |
static void mux_chr_accept_input(CharDriverState *chr) |
| 388 |
{
|
| 389 |
MuxDriver *d = chr->opaque; |
| 390 |
int m = d->focus;
|
| 391 |
|
| 392 |
while (d->prod[m] != d->cons[m] &&
|
| 393 |
d->chr_can_read[m] && |
| 394 |
d->chr_can_read[m](d->ext_opaque[m])) {
|
| 395 |
d->chr_read[m](d->ext_opaque[m], |
| 396 |
&d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1);
|
| 397 |
} |
| 398 |
} |
| 399 |
|
| 400 |
static int mux_chr_can_read(void *opaque) |
| 401 |
{
|
| 402 |
CharDriverState *chr = opaque; |
| 403 |
MuxDriver *d = chr->opaque; |
| 404 |
int m = d->focus;
|
| 405 |
|
| 406 |
if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
|
| 407 |
return 1; |
| 408 |
if (d->chr_can_read[m])
|
| 409 |
return d->chr_can_read[m](d->ext_opaque[m]);
|
| 410 |
return 0; |
| 411 |
} |
| 412 |
|
| 413 |
static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
| 414 |
{
|
| 415 |
CharDriverState *chr = opaque; |
| 416 |
MuxDriver *d = chr->opaque; |
| 417 |
int m = d->focus;
|
| 418 |
int i;
|
| 419 |
|
| 420 |
mux_chr_accept_input (opaque); |
| 421 |
|
| 422 |
for(i = 0; i < size; i++) |
| 423 |
if (mux_proc_byte(chr, d, buf[i])) {
|
| 424 |
if (d->prod[m] == d->cons[m] &&
|
| 425 |
d->chr_can_read[m] && |
| 426 |
d->chr_can_read[m](d->ext_opaque[m])) |
| 427 |
d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
|
| 428 |
else
|
| 429 |
d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i]; |
| 430 |
} |
| 431 |
} |
| 432 |
|
| 433 |
static void mux_chr_event(void *opaque, int event) |
| 434 |
{
|
| 435 |
CharDriverState *chr = opaque; |
| 436 |
MuxDriver *d = chr->opaque; |
| 437 |
int i;
|
| 438 |
|
| 439 |
/* Send the event to all registered listeners */
|
| 440 |
for (i = 0; i < d->mux_cnt; i++) |
| 441 |
mux_chr_send_event(d, i, event); |
| 442 |
} |
| 443 |
|
| 444 |
static void mux_chr_update_read_handler(CharDriverState *chr) |
| 445 |
{
|
| 446 |
MuxDriver *d = chr->opaque; |
| 447 |
|
| 448 |
if (d->mux_cnt >= MAX_MUX) {
|
| 449 |
fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n");
|
| 450 |
return;
|
| 451 |
} |
| 452 |
d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
| 453 |
d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
| 454 |
d->chr_read[d->mux_cnt] = chr->chr_read; |
| 455 |
d->chr_event[d->mux_cnt] = chr->chr_event; |
| 456 |
/* Fix up the real driver with mux routines */
|
| 457 |
if (d->mux_cnt == 0) { |
| 458 |
qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
| 459 |
mux_chr_event, chr); |
| 460 |
} |
| 461 |
if (d->focus != -1) { |
| 462 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
| 463 |
} |
| 464 |
d->focus = d->mux_cnt; |
| 465 |
d->mux_cnt++; |
| 466 |
mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
| 467 |
} |
| 468 |
|
| 469 |
static CharDriverState *qemu_chr_open_mux(CharDriverState *drv)
|
| 470 |
{
|
| 471 |
CharDriverState *chr; |
| 472 |
MuxDriver *d; |
| 473 |
|
| 474 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 475 |
d = qemu_mallocz(sizeof(MuxDriver));
|
| 476 |
|
| 477 |
chr->opaque = d; |
| 478 |
d->drv = drv; |
| 479 |
d->focus = -1;
|
| 480 |
chr->chr_write = mux_chr_write; |
| 481 |
chr->chr_update_read_handler = mux_chr_update_read_handler; |
| 482 |
chr->chr_accept_input = mux_chr_accept_input; |
| 483 |
/* Frontend guest-open / -close notification is not support with muxes */
|
| 484 |
chr->chr_guest_open = NULL;
|
| 485 |
chr->chr_guest_close = NULL;
|
| 486 |
|
| 487 |
/* Muxes are always open on creation */
|
| 488 |
qemu_chr_generic_open(chr); |
| 489 |
|
| 490 |
return chr;
|
| 491 |
} |
| 492 |
|
| 493 |
|
| 494 |
#ifdef _WIN32
|
| 495 |
int send_all(int fd, const void *buf, int len1) |
| 496 |
{
|
| 497 |
int ret, len;
|
| 498 |
|
| 499 |
len = len1; |
| 500 |
while (len > 0) { |
| 501 |
ret = send(fd, buf, len, 0);
|
| 502 |
if (ret < 0) { |
| 503 |
errno = WSAGetLastError(); |
| 504 |
if (errno != WSAEWOULDBLOCK) {
|
| 505 |
return -1; |
| 506 |
} |
| 507 |
} else if (ret == 0) { |
| 508 |
break;
|
| 509 |
} else {
|
| 510 |
buf += ret; |
| 511 |
len -= ret; |
| 512 |
} |
| 513 |
} |
| 514 |
return len1 - len;
|
| 515 |
} |
| 516 |
|
| 517 |
#else
|
| 518 |
|
| 519 |
int send_all(int fd, const void *_buf, int len1) |
| 520 |
{
|
| 521 |
int ret, len;
|
| 522 |
const uint8_t *buf = _buf;
|
| 523 |
|
| 524 |
len = len1; |
| 525 |
while (len > 0) { |
| 526 |
ret = write(fd, buf, len); |
| 527 |
if (ret < 0) { |
| 528 |
if (errno != EINTR && errno != EAGAIN)
|
| 529 |
return -1; |
| 530 |
} else if (ret == 0) { |
| 531 |
break;
|
| 532 |
} else {
|
| 533 |
buf += ret; |
| 534 |
len -= ret; |
| 535 |
} |
| 536 |
} |
| 537 |
return len1 - len;
|
| 538 |
} |
| 539 |
#endif /* !_WIN32 */ |
| 540 |
|
| 541 |
#ifndef _WIN32
|
| 542 |
|
| 543 |
typedef struct { |
| 544 |
int fd_in, fd_out;
|
| 545 |
int max_size;
|
| 546 |
} FDCharDriver; |
| 547 |
|
| 548 |
#define STDIO_MAX_CLIENTS 1 |
| 549 |
static int stdio_nb_clients = 0; |
| 550 |
|
| 551 |
static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 552 |
{
|
| 553 |
FDCharDriver *s = chr->opaque; |
| 554 |
return send_all(s->fd_out, buf, len);
|
| 555 |
} |
| 556 |
|
| 557 |
static int fd_chr_read_poll(void *opaque) |
| 558 |
{
|
| 559 |
CharDriverState *chr = opaque; |
| 560 |
FDCharDriver *s = chr->opaque; |
| 561 |
|
| 562 |
s->max_size = qemu_chr_can_read(chr); |
| 563 |
return s->max_size;
|
| 564 |
} |
| 565 |
|
| 566 |
static void fd_chr_read(void *opaque) |
| 567 |
{
|
| 568 |
CharDriverState *chr = opaque; |
| 569 |
FDCharDriver *s = chr->opaque; |
| 570 |
int size, len;
|
| 571 |
uint8_t buf[READ_BUF_LEN]; |
| 572 |
|
| 573 |
len = sizeof(buf);
|
| 574 |
if (len > s->max_size)
|
| 575 |
len = s->max_size; |
| 576 |
if (len == 0) |
| 577 |
return;
|
| 578 |
size = read(s->fd_in, buf, len); |
| 579 |
if (size == 0) { |
| 580 |
/* FD has been closed. Remove it from the active list. */
|
| 581 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
| 582 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
| 583 |
return;
|
| 584 |
} |
| 585 |
if (size > 0) { |
| 586 |
qemu_chr_read(chr, buf, size); |
| 587 |
} |
| 588 |
} |
| 589 |
|
| 590 |
static void fd_chr_update_read_handler(CharDriverState *chr) |
| 591 |
{
|
| 592 |
FDCharDriver *s = chr->opaque; |
| 593 |
|
| 594 |
if (s->fd_in >= 0) { |
| 595 |
if (display_type == DT_NOGRAPHIC && s->fd_in == 0) { |
| 596 |
} else {
|
| 597 |
qemu_set_fd_handler2(s->fd_in, fd_chr_read_poll, |
| 598 |
fd_chr_read, NULL, chr);
|
| 599 |
} |
| 600 |
} |
| 601 |
} |
| 602 |
|
| 603 |
static void fd_chr_close(struct CharDriverState *chr) |
| 604 |
{
|
| 605 |
FDCharDriver *s = chr->opaque; |
| 606 |
|
| 607 |
if (s->fd_in >= 0) { |
| 608 |
if (display_type == DT_NOGRAPHIC && s->fd_in == 0) { |
| 609 |
} else {
|
| 610 |
qemu_set_fd_handler2(s->fd_in, NULL, NULL, NULL, NULL); |
| 611 |
} |
| 612 |
} |
| 613 |
|
| 614 |
qemu_free(s); |
| 615 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
| 616 |
} |
| 617 |
|
| 618 |
/* open a character device to a unix fd */
|
| 619 |
static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
| 620 |
{
|
| 621 |
CharDriverState *chr; |
| 622 |
FDCharDriver *s; |
| 623 |
|
| 624 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 625 |
s = qemu_mallocz(sizeof(FDCharDriver));
|
| 626 |
s->fd_in = fd_in; |
| 627 |
s->fd_out = fd_out; |
| 628 |
chr->opaque = s; |
| 629 |
chr->chr_write = fd_chr_write; |
| 630 |
chr->chr_update_read_handler = fd_chr_update_read_handler; |
| 631 |
chr->chr_close = fd_chr_close; |
| 632 |
|
| 633 |
qemu_chr_generic_open(chr); |
| 634 |
|
| 635 |
return chr;
|
| 636 |
} |
| 637 |
|
| 638 |
static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
|
| 639 |
{
|
| 640 |
int fd_out;
|
| 641 |
|
| 642 |
TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
|
| 643 |
O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
|
| 644 |
if (fd_out < 0) |
| 645 |
return NULL; |
| 646 |
return qemu_chr_open_fd(-1, fd_out); |
| 647 |
} |
| 648 |
|
| 649 |
static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
|
| 650 |
{
|
| 651 |
int fd_in, fd_out;
|
| 652 |
char filename_in[256], filename_out[256]; |
| 653 |
const char *filename = qemu_opt_get(opts, "path"); |
| 654 |
|
| 655 |
if (filename == NULL) { |
| 656 |
fprintf(stderr, "chardev: pipe: no filename given\n");
|
| 657 |
return NULL; |
| 658 |
} |
| 659 |
|
| 660 |
snprintf(filename_in, 256, "%s.in", filename); |
| 661 |
snprintf(filename_out, 256, "%s.out", filename); |
| 662 |
TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY)); |
| 663 |
TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY)); |
| 664 |
if (fd_in < 0 || fd_out < 0) { |
| 665 |
if (fd_in >= 0) |
| 666 |
close(fd_in); |
| 667 |
if (fd_out >= 0) |
| 668 |
close(fd_out); |
| 669 |
TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY)); |
| 670 |
if (fd_in < 0) |
| 671 |
return NULL; |
| 672 |
} |
| 673 |
return qemu_chr_open_fd(fd_in, fd_out);
|
| 674 |
} |
| 675 |
|
| 676 |
|
| 677 |
/* for STDIO, we handle the case where several clients use it
|
| 678 |
(nographic mode) */
|
| 679 |
|
| 680 |
#define TERM_FIFO_MAX_SIZE 1 |
| 681 |
|
| 682 |
static uint8_t term_fifo[TERM_FIFO_MAX_SIZE];
|
| 683 |
static int term_fifo_size; |
| 684 |
|
| 685 |
static int stdio_read_poll(void *opaque) |
| 686 |
{
|
| 687 |
CharDriverState *chr = opaque; |
| 688 |
|
| 689 |
/* try to flush the queue if needed */
|
| 690 |
if (term_fifo_size != 0 && qemu_chr_can_read(chr) > 0) { |
| 691 |
qemu_chr_read(chr, term_fifo, 1);
|
| 692 |
term_fifo_size = 0;
|
| 693 |
} |
| 694 |
/* see if we can absorb more chars */
|
| 695 |
if (term_fifo_size == 0) |
| 696 |
return 1; |
| 697 |
else
|
| 698 |
return 0; |
| 699 |
} |
| 700 |
|
| 701 |
static void stdio_read(void *opaque) |
| 702 |
{
|
| 703 |
int size;
|
| 704 |
uint8_t buf[1];
|
| 705 |
CharDriverState *chr = opaque; |
| 706 |
|
| 707 |
size = read(0, buf, 1); |
| 708 |
if (size == 0) { |
| 709 |
/* stdin has been closed. Remove it from the active list. */
|
| 710 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
| 711 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
| 712 |
return;
|
| 713 |
} |
| 714 |
if (size > 0) { |
| 715 |
if (qemu_chr_can_read(chr) > 0) { |
| 716 |
qemu_chr_read(chr, buf, 1);
|
| 717 |
} else if (term_fifo_size == 0) { |
| 718 |
term_fifo[term_fifo_size++] = buf[0];
|
| 719 |
} |
| 720 |
} |
| 721 |
} |
| 722 |
|
| 723 |
/* init terminal so that we can grab keys */
|
| 724 |
static struct termios oldtty; |
| 725 |
static int old_fd0_flags; |
| 726 |
static bool stdio_allow_signal; |
| 727 |
|
| 728 |
static void term_exit(void) |
| 729 |
{
|
| 730 |
tcsetattr (0, TCSANOW, &oldtty);
|
| 731 |
fcntl(0, F_SETFL, old_fd0_flags);
|
| 732 |
} |
| 733 |
|
| 734 |
static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo) |
| 735 |
{
|
| 736 |
struct termios tty;
|
| 737 |
|
| 738 |
tty = oldtty; |
| 739 |
if (!echo) {
|
| 740 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 741 |
|INLCR|IGNCR|ICRNL|IXON); |
| 742 |
tty.c_oflag |= OPOST; |
| 743 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
| 744 |
tty.c_cflag &= ~(CSIZE|PARENB); |
| 745 |
tty.c_cflag |= CS8; |
| 746 |
tty.c_cc[VMIN] = 1;
|
| 747 |
tty.c_cc[VTIME] = 0;
|
| 748 |
} |
| 749 |
/* if graphical mode, we allow Ctrl-C handling */
|
| 750 |
if (!stdio_allow_signal)
|
| 751 |
tty.c_lflag &= ~ISIG; |
| 752 |
|
| 753 |
tcsetattr (0, TCSANOW, &tty);
|
| 754 |
} |
| 755 |
|
| 756 |
static void qemu_chr_close_stdio(struct CharDriverState *chr) |
| 757 |
{
|
| 758 |
term_exit(); |
| 759 |
stdio_nb_clients--; |
| 760 |
qemu_set_fd_handler2(0, NULL, NULL, NULL, NULL); |
| 761 |
fd_chr_close(chr); |
| 762 |
} |
| 763 |
|
| 764 |
static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
|
| 765 |
{
|
| 766 |
CharDriverState *chr; |
| 767 |
|
| 768 |
if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
|
| 769 |
return NULL; |
| 770 |
if (stdio_nb_clients == 0) { |
| 771 |
old_fd0_flags = fcntl(0, F_GETFL);
|
| 772 |
tcgetattr (0, &oldtty);
|
| 773 |
fcntl(0, F_SETFL, O_NONBLOCK);
|
| 774 |
atexit(term_exit); |
| 775 |
} |
| 776 |
|
| 777 |
chr = qemu_chr_open_fd(0, 1); |
| 778 |
chr->chr_close = qemu_chr_close_stdio; |
| 779 |
chr->chr_set_echo = qemu_chr_set_echo_stdio; |
| 780 |
qemu_set_fd_handler2(0, stdio_read_poll, stdio_read, NULL, chr); |
| 781 |
stdio_nb_clients++; |
| 782 |
stdio_allow_signal = qemu_opt_get_bool(opts, "signal",
|
| 783 |
display_type != DT_NOGRAPHIC); |
| 784 |
qemu_chr_set_echo(chr, false);
|
| 785 |
|
| 786 |
return chr;
|
| 787 |
} |
| 788 |
|
| 789 |
#ifdef __sun__
|
| 790 |
/* Once Solaris has openpty(), this is going to be removed. */
|
| 791 |
static int openpty(int *amaster, int *aslave, char *name, |
| 792 |
struct termios *termp, struct winsize *winp) |
| 793 |
{
|
| 794 |
const char *slave; |
| 795 |
int mfd = -1, sfd = -1; |
| 796 |
|
| 797 |
*amaster = *aslave = -1;
|
| 798 |
|
| 799 |
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
| 800 |
if (mfd < 0) |
| 801 |
goto err;
|
| 802 |
|
| 803 |
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1) |
| 804 |
goto err;
|
| 805 |
|
| 806 |
if ((slave = ptsname(mfd)) == NULL) |
| 807 |
goto err;
|
| 808 |
|
| 809 |
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1) |
| 810 |
goto err;
|
| 811 |
|
| 812 |
if (ioctl(sfd, I_PUSH, "ptem") == -1 || |
| 813 |
(termp != NULL && tcgetattr(sfd, termp) < 0)) |
| 814 |
goto err;
|
| 815 |
|
| 816 |
if (amaster)
|
| 817 |
*amaster = mfd; |
| 818 |
if (aslave)
|
| 819 |
*aslave = sfd; |
| 820 |
if (winp)
|
| 821 |
ioctl(sfd, TIOCSWINSZ, winp); |
| 822 |
|
| 823 |
return 0; |
| 824 |
|
| 825 |
err:
|
| 826 |
if (sfd != -1) |
| 827 |
close(sfd); |
| 828 |
close(mfd); |
| 829 |
return -1; |
| 830 |
} |
| 831 |
|
| 832 |
static void cfmakeraw (struct termios *termios_p) |
| 833 |
{
|
| 834 |
termios_p->c_iflag &= |
| 835 |
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); |
| 836 |
termios_p->c_oflag &= ~OPOST; |
| 837 |
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
| 838 |
termios_p->c_cflag &= ~(CSIZE|PARENB); |
| 839 |
termios_p->c_cflag |= CS8; |
| 840 |
|
| 841 |
termios_p->c_cc[VMIN] = 0;
|
| 842 |
termios_p->c_cc[VTIME] = 0;
|
| 843 |
} |
| 844 |
#endif
|
| 845 |
|
| 846 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
| 847 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ |
| 848 |
|| defined(__GLIBC__) |
| 849 |
|
| 850 |
typedef struct { |
| 851 |
int fd;
|
| 852 |
int connected;
|
| 853 |
int polling;
|
| 854 |
int read_bytes;
|
| 855 |
QEMUTimer *timer; |
| 856 |
} PtyCharDriver; |
| 857 |
|
| 858 |
static void pty_chr_update_read_handler(CharDriverState *chr); |
| 859 |
static void pty_chr_state(CharDriverState *chr, int connected); |
| 860 |
|
| 861 |
static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 862 |
{
|
| 863 |
PtyCharDriver *s = chr->opaque; |
| 864 |
|
| 865 |
if (!s->connected) {
|
| 866 |
/* guest sends data, check for (re-)connect */
|
| 867 |
pty_chr_update_read_handler(chr); |
| 868 |
return 0; |
| 869 |
} |
| 870 |
return send_all(s->fd, buf, len);
|
| 871 |
} |
| 872 |
|
| 873 |
static int pty_chr_read_poll(void *opaque) |
| 874 |
{
|
| 875 |
CharDriverState *chr = opaque; |
| 876 |
PtyCharDriver *s = chr->opaque; |
| 877 |
|
| 878 |
s->read_bytes = qemu_chr_can_read(chr); |
| 879 |
return s->read_bytes;
|
| 880 |
} |
| 881 |
|
| 882 |
static void pty_chr_read(void *opaque) |
| 883 |
{
|
| 884 |
CharDriverState *chr = opaque; |
| 885 |
PtyCharDriver *s = chr->opaque; |
| 886 |
int size, len;
|
| 887 |
uint8_t buf[READ_BUF_LEN]; |
| 888 |
|
| 889 |
len = sizeof(buf);
|
| 890 |
if (len > s->read_bytes)
|
| 891 |
len = s->read_bytes; |
| 892 |
if (len == 0) |
| 893 |
return;
|
| 894 |
size = read(s->fd, buf, len); |
| 895 |
if ((size == -1 && errno == EIO) || |
| 896 |
(size == 0)) {
|
| 897 |
pty_chr_state(chr, 0);
|
| 898 |
return;
|
| 899 |
} |
| 900 |
if (size > 0) { |
| 901 |
pty_chr_state(chr, 1);
|
| 902 |
qemu_chr_read(chr, buf, size); |
| 903 |
} |
| 904 |
} |
| 905 |
|
| 906 |
static void pty_chr_update_read_handler(CharDriverState *chr) |
| 907 |
{
|
| 908 |
PtyCharDriver *s = chr->opaque; |
| 909 |
|
| 910 |
qemu_set_fd_handler2(s->fd, pty_chr_read_poll, |
| 911 |
pty_chr_read, NULL, chr);
|
| 912 |
s->polling = 1;
|
| 913 |
/*
|
| 914 |
* Short timeout here: just need wait long enougth that qemu makes
|
| 915 |
* it through the poll loop once. When reconnected we want a
|
| 916 |
* short timeout so we notice it almost instantly. Otherwise
|
| 917 |
* read() gives us -EIO instantly, making pty_chr_state() reset the
|
| 918 |
* timeout to the normal (much longer) poll interval before the
|
| 919 |
* timer triggers.
|
| 920 |
*/
|
| 921 |
qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
|
| 922 |
} |
| 923 |
|
| 924 |
static void pty_chr_state(CharDriverState *chr, int connected) |
| 925 |
{
|
| 926 |
PtyCharDriver *s = chr->opaque; |
| 927 |
|
| 928 |
if (!connected) {
|
| 929 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
| 930 |
s->connected = 0;
|
| 931 |
s->polling = 0;
|
| 932 |
/* (re-)connect poll interval for idle guests: once per second.
|
| 933 |
* We check more frequently in case the guests sends data to
|
| 934 |
* the virtual device linked to our pty. */
|
| 935 |
qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
|
| 936 |
} else {
|
| 937 |
if (!s->connected)
|
| 938 |
qemu_chr_generic_open(chr); |
| 939 |
s->connected = 1;
|
| 940 |
} |
| 941 |
} |
| 942 |
|
| 943 |
static void pty_chr_timer(void *opaque) |
| 944 |
{
|
| 945 |
struct CharDriverState *chr = opaque;
|
| 946 |
PtyCharDriver *s = chr->opaque; |
| 947 |
|
| 948 |
if (s->connected)
|
| 949 |
return;
|
| 950 |
if (s->polling) {
|
| 951 |
/* If we arrive here without polling being cleared due
|
| 952 |
* read returning -EIO, then we are (re-)connected */
|
| 953 |
pty_chr_state(chr, 1);
|
| 954 |
return;
|
| 955 |
} |
| 956 |
|
| 957 |
/* Next poll ... */
|
| 958 |
pty_chr_update_read_handler(chr); |
| 959 |
} |
| 960 |
|
| 961 |
static void pty_chr_close(struct CharDriverState *chr) |
| 962 |
{
|
| 963 |
PtyCharDriver *s = chr->opaque; |
| 964 |
|
| 965 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
| 966 |
close(s->fd); |
| 967 |
qemu_del_timer(s->timer); |
| 968 |
qemu_free_timer(s->timer); |
| 969 |
qemu_free(s); |
| 970 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
| 971 |
} |
| 972 |
|
| 973 |
static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
|
| 974 |
{
|
| 975 |
CharDriverState *chr; |
| 976 |
PtyCharDriver *s; |
| 977 |
struct termios tty;
|
| 978 |
int slave_fd, len;
|
| 979 |
#if defined(__OpenBSD__) || defined(__DragonFly__)
|
| 980 |
char pty_name[PATH_MAX];
|
| 981 |
#define q_ptsname(x) pty_name
|
| 982 |
#else
|
| 983 |
char *pty_name = NULL; |
| 984 |
#define q_ptsname(x) ptsname(x)
|
| 985 |
#endif
|
| 986 |
|
| 987 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 988 |
s = qemu_mallocz(sizeof(PtyCharDriver));
|
| 989 |
|
| 990 |
if (openpty(&s->fd, &slave_fd, pty_name, NULL, NULL) < 0) { |
| 991 |
return NULL; |
| 992 |
} |
| 993 |
|
| 994 |
/* Set raw attributes on the pty. */
|
| 995 |
tcgetattr(slave_fd, &tty); |
| 996 |
cfmakeraw(&tty); |
| 997 |
tcsetattr(slave_fd, TCSAFLUSH, &tty); |
| 998 |
close(slave_fd); |
| 999 |
|
| 1000 |
len = strlen(q_ptsname(s->fd)) + 5;
|
| 1001 |
chr->filename = qemu_malloc(len); |
| 1002 |
snprintf(chr->filename, len, "pty:%s", q_ptsname(s->fd));
|
| 1003 |
qemu_opt_set(opts, "path", q_ptsname(s->fd));
|
| 1004 |
fprintf(stderr, "char device redirected to %s\n", q_ptsname(s->fd));
|
| 1005 |
|
| 1006 |
chr->opaque = s; |
| 1007 |
chr->chr_write = pty_chr_write; |
| 1008 |
chr->chr_update_read_handler = pty_chr_update_read_handler; |
| 1009 |
chr->chr_close = pty_chr_close; |
| 1010 |
|
| 1011 |
s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr); |
| 1012 |
|
| 1013 |
return chr;
|
| 1014 |
} |
| 1015 |
|
| 1016 |
static void tty_serial_init(int fd, int speed, |
| 1017 |
int parity, int data_bits, int stop_bits) |
| 1018 |
{
|
| 1019 |
struct termios tty;
|
| 1020 |
speed_t spd; |
| 1021 |
|
| 1022 |
#if 0
|
| 1023 |
printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
|
| 1024 |
speed, parity, data_bits, stop_bits);
|
| 1025 |
#endif
|
| 1026 |
tcgetattr (fd, &tty); |
| 1027 |
|
| 1028 |
#define check_speed(val) if (speed <= val) { spd = B##val; break; } |
| 1029 |
speed = speed * 10 / 11; |
| 1030 |
do {
|
| 1031 |
check_speed(50);
|
| 1032 |
check_speed(75);
|
| 1033 |
check_speed(110);
|
| 1034 |
check_speed(134);
|
| 1035 |
check_speed(150);
|
| 1036 |
check_speed(200);
|
| 1037 |
check_speed(300);
|
| 1038 |
check_speed(600);
|
| 1039 |
check_speed(1200);
|
| 1040 |
check_speed(1800);
|
| 1041 |
check_speed(2400);
|
| 1042 |
check_speed(4800);
|
| 1043 |
check_speed(9600);
|
| 1044 |
check_speed(19200);
|
| 1045 |
check_speed(38400);
|
| 1046 |
/* Non-Posix values follow. They may be unsupported on some systems. */
|
| 1047 |
check_speed(57600);
|
| 1048 |
check_speed(115200);
|
| 1049 |
#ifdef B230400
|
| 1050 |
check_speed(230400);
|
| 1051 |
#endif
|
| 1052 |
#ifdef B460800
|
| 1053 |
check_speed(460800);
|
| 1054 |
#endif
|
| 1055 |
#ifdef B500000
|
| 1056 |
check_speed(500000);
|
| 1057 |
#endif
|
| 1058 |
#ifdef B576000
|
| 1059 |
check_speed(576000);
|
| 1060 |
#endif
|
| 1061 |
#ifdef B921600
|
| 1062 |
check_speed(921600);
|
| 1063 |
#endif
|
| 1064 |
#ifdef B1000000
|
| 1065 |
check_speed(1000000);
|
| 1066 |
#endif
|
| 1067 |
#ifdef B1152000
|
| 1068 |
check_speed(1152000);
|
| 1069 |
#endif
|
| 1070 |
#ifdef B1500000
|
| 1071 |
check_speed(1500000);
|
| 1072 |
#endif
|
| 1073 |
#ifdef B2000000
|
| 1074 |
check_speed(2000000);
|
| 1075 |
#endif
|
| 1076 |
#ifdef B2500000
|
| 1077 |
check_speed(2500000);
|
| 1078 |
#endif
|
| 1079 |
#ifdef B3000000
|
| 1080 |
check_speed(3000000);
|
| 1081 |
#endif
|
| 1082 |
#ifdef B3500000
|
| 1083 |
check_speed(3500000);
|
| 1084 |
#endif
|
| 1085 |
#ifdef B4000000
|
| 1086 |
check_speed(4000000);
|
| 1087 |
#endif
|
| 1088 |
spd = B115200; |
| 1089 |
} while (0); |
| 1090 |
|
| 1091 |
cfsetispeed(&tty, spd); |
| 1092 |
cfsetospeed(&tty, spd); |
| 1093 |
|
| 1094 |
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 1095 |
|INLCR|IGNCR|ICRNL|IXON); |
| 1096 |
tty.c_oflag |= OPOST; |
| 1097 |
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
| 1098 |
tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
| 1099 |
switch(data_bits) {
|
| 1100 |
default:
|
| 1101 |
case 8: |
| 1102 |
tty.c_cflag |= CS8; |
| 1103 |
break;
|
| 1104 |
case 7: |
| 1105 |
tty.c_cflag |= CS7; |
| 1106 |
break;
|
| 1107 |
case 6: |
| 1108 |
tty.c_cflag |= CS6; |
| 1109 |
break;
|
| 1110 |
case 5: |
| 1111 |
tty.c_cflag |= CS5; |
| 1112 |
break;
|
| 1113 |
} |
| 1114 |
switch(parity) {
|
| 1115 |
default:
|
| 1116 |
case 'N': |
| 1117 |
break;
|
| 1118 |
case 'E': |
| 1119 |
tty.c_cflag |= PARENB; |
| 1120 |
break;
|
| 1121 |
case 'O': |
| 1122 |
tty.c_cflag |= PARENB | PARODD; |
| 1123 |
break;
|
| 1124 |
} |
| 1125 |
if (stop_bits == 2) |
| 1126 |
tty.c_cflag |= CSTOPB; |
| 1127 |
|
| 1128 |
tcsetattr (fd, TCSANOW, &tty); |
| 1129 |
} |
| 1130 |
|
| 1131 |
static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1132 |
{
|
| 1133 |
FDCharDriver *s = chr->opaque; |
| 1134 |
|
| 1135 |
switch(cmd) {
|
| 1136 |
case CHR_IOCTL_SERIAL_SET_PARAMS:
|
| 1137 |
{
|
| 1138 |
QEMUSerialSetParams *ssp = arg; |
| 1139 |
tty_serial_init(s->fd_in, ssp->speed, ssp->parity, |
| 1140 |
ssp->data_bits, ssp->stop_bits); |
| 1141 |
} |
| 1142 |
break;
|
| 1143 |
case CHR_IOCTL_SERIAL_SET_BREAK:
|
| 1144 |
{
|
| 1145 |
int enable = *(int *)arg; |
| 1146 |
if (enable)
|
| 1147 |
tcsendbreak(s->fd_in, 1);
|
| 1148 |
} |
| 1149 |
break;
|
| 1150 |
case CHR_IOCTL_SERIAL_GET_TIOCM:
|
| 1151 |
{
|
| 1152 |
int sarg = 0; |
| 1153 |
int *targ = (int *)arg; |
| 1154 |
ioctl(s->fd_in, TIOCMGET, &sarg); |
| 1155 |
*targ = 0;
|
| 1156 |
if (sarg & TIOCM_CTS)
|
| 1157 |
*targ |= CHR_TIOCM_CTS; |
| 1158 |
if (sarg & TIOCM_CAR)
|
| 1159 |
*targ |= CHR_TIOCM_CAR; |
| 1160 |
if (sarg & TIOCM_DSR)
|
| 1161 |
*targ |= CHR_TIOCM_DSR; |
| 1162 |
if (sarg & TIOCM_RI)
|
| 1163 |
*targ |= CHR_TIOCM_RI; |
| 1164 |
if (sarg & TIOCM_DTR)
|
| 1165 |
*targ |= CHR_TIOCM_DTR; |
| 1166 |
if (sarg & TIOCM_RTS)
|
| 1167 |
*targ |= CHR_TIOCM_RTS; |
| 1168 |
} |
| 1169 |
break;
|
| 1170 |
case CHR_IOCTL_SERIAL_SET_TIOCM:
|
| 1171 |
{
|
| 1172 |
int sarg = *(int *)arg; |
| 1173 |
int targ = 0; |
| 1174 |
ioctl(s->fd_in, TIOCMGET, &targ); |
| 1175 |
targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR |
| 1176 |
| CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); |
| 1177 |
if (sarg & CHR_TIOCM_CTS)
|
| 1178 |
targ |= TIOCM_CTS; |
| 1179 |
if (sarg & CHR_TIOCM_CAR)
|
| 1180 |
targ |= TIOCM_CAR; |
| 1181 |
if (sarg & CHR_TIOCM_DSR)
|
| 1182 |
targ |= TIOCM_DSR; |
| 1183 |
if (sarg & CHR_TIOCM_RI)
|
| 1184 |
targ |= TIOCM_RI; |
| 1185 |
if (sarg & CHR_TIOCM_DTR)
|
| 1186 |
targ |= TIOCM_DTR; |
| 1187 |
if (sarg & CHR_TIOCM_RTS)
|
| 1188 |
targ |= TIOCM_RTS; |
| 1189 |
ioctl(s->fd_in, TIOCMSET, &targ); |
| 1190 |
} |
| 1191 |
break;
|
| 1192 |
default:
|
| 1193 |
return -ENOTSUP;
|
| 1194 |
} |
| 1195 |
return 0; |
| 1196 |
} |
| 1197 |
|
| 1198 |
static void qemu_chr_close_tty(CharDriverState *chr) |
| 1199 |
{
|
| 1200 |
FDCharDriver *s = chr->opaque; |
| 1201 |
int fd = -1; |
| 1202 |
|
| 1203 |
if (s) {
|
| 1204 |
fd = s->fd_in; |
| 1205 |
} |
| 1206 |
|
| 1207 |
fd_chr_close(chr); |
| 1208 |
|
| 1209 |
if (fd >= 0) { |
| 1210 |
close(fd); |
| 1211 |
} |
| 1212 |
} |
| 1213 |
|
| 1214 |
static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
|
| 1215 |
{
|
| 1216 |
const char *filename = qemu_opt_get(opts, "path"); |
| 1217 |
CharDriverState *chr; |
| 1218 |
int fd;
|
| 1219 |
|
| 1220 |
TFR(fd = open(filename, O_RDWR | O_NONBLOCK)); |
| 1221 |
if (fd < 0) { |
| 1222 |
return NULL; |
| 1223 |
} |
| 1224 |
tty_serial_init(fd, 115200, 'N', 8, 1); |
| 1225 |
chr = qemu_chr_open_fd(fd, fd); |
| 1226 |
if (!chr) {
|
| 1227 |
close(fd); |
| 1228 |
return NULL; |
| 1229 |
} |
| 1230 |
chr->chr_ioctl = tty_serial_ioctl; |
| 1231 |
chr->chr_close = qemu_chr_close_tty; |
| 1232 |
return chr;
|
| 1233 |
} |
| 1234 |
#else /* ! __linux__ && ! __sun__ */ |
| 1235 |
static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
|
| 1236 |
{
|
| 1237 |
return NULL; |
| 1238 |
} |
| 1239 |
#endif /* __linux__ || __sun__ */ |
| 1240 |
|
| 1241 |
#if defined(__linux__)
|
| 1242 |
typedef struct { |
| 1243 |
int fd;
|
| 1244 |
int mode;
|
| 1245 |
} ParallelCharDriver; |
| 1246 |
|
| 1247 |
static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
| 1248 |
{
|
| 1249 |
if (s->mode != mode) {
|
| 1250 |
int m = mode;
|
| 1251 |
if (ioctl(s->fd, PPSETMODE, &m) < 0) |
| 1252 |
return 0; |
| 1253 |
s->mode = mode; |
| 1254 |
} |
| 1255 |
return 1; |
| 1256 |
} |
| 1257 |
|
| 1258 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1259 |
{
|
| 1260 |
ParallelCharDriver *drv = chr->opaque; |
| 1261 |
int fd = drv->fd;
|
| 1262 |
uint8_t b; |
| 1263 |
|
| 1264 |
switch(cmd) {
|
| 1265 |
case CHR_IOCTL_PP_READ_DATA:
|
| 1266 |
if (ioctl(fd, PPRDATA, &b) < 0) |
| 1267 |
return -ENOTSUP;
|
| 1268 |
*(uint8_t *)arg = b; |
| 1269 |
break;
|
| 1270 |
case CHR_IOCTL_PP_WRITE_DATA:
|
| 1271 |
b = *(uint8_t *)arg; |
| 1272 |
if (ioctl(fd, PPWDATA, &b) < 0) |
| 1273 |
return -ENOTSUP;
|
| 1274 |
break;
|
| 1275 |
case CHR_IOCTL_PP_READ_CONTROL:
|
| 1276 |
if (ioctl(fd, PPRCONTROL, &b) < 0) |
| 1277 |
return -ENOTSUP;
|
| 1278 |
/* Linux gives only the lowest bits, and no way to know data
|
| 1279 |
direction! For better compatibility set the fixed upper
|
| 1280 |
bits. */
|
| 1281 |
*(uint8_t *)arg = b | 0xc0;
|
| 1282 |
break;
|
| 1283 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
| 1284 |
b = *(uint8_t *)arg; |
| 1285 |
if (ioctl(fd, PPWCONTROL, &b) < 0) |
| 1286 |
return -ENOTSUP;
|
| 1287 |
break;
|
| 1288 |
case CHR_IOCTL_PP_READ_STATUS:
|
| 1289 |
if (ioctl(fd, PPRSTATUS, &b) < 0) |
| 1290 |
return -ENOTSUP;
|
| 1291 |
*(uint8_t *)arg = b; |
| 1292 |
break;
|
| 1293 |
case CHR_IOCTL_PP_DATA_DIR:
|
| 1294 |
if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
| 1295 |
return -ENOTSUP;
|
| 1296 |
break;
|
| 1297 |
case CHR_IOCTL_PP_EPP_READ_ADDR:
|
| 1298 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
| 1299 |
struct ParallelIOArg *parg = arg;
|
| 1300 |
int n = read(fd, parg->buffer, parg->count);
|
| 1301 |
if (n != parg->count) {
|
| 1302 |
return -EIO;
|
| 1303 |
} |
| 1304 |
} |
| 1305 |
break;
|
| 1306 |
case CHR_IOCTL_PP_EPP_READ:
|
| 1307 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
| 1308 |
struct ParallelIOArg *parg = arg;
|
| 1309 |
int n = read(fd, parg->buffer, parg->count);
|
| 1310 |
if (n != parg->count) {
|
| 1311 |
return -EIO;
|
| 1312 |
} |
| 1313 |
} |
| 1314 |
break;
|
| 1315 |
case CHR_IOCTL_PP_EPP_WRITE_ADDR:
|
| 1316 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
|
| 1317 |
struct ParallelIOArg *parg = arg;
|
| 1318 |
int n = write(fd, parg->buffer, parg->count);
|
| 1319 |
if (n != parg->count) {
|
| 1320 |
return -EIO;
|
| 1321 |
} |
| 1322 |
} |
| 1323 |
break;
|
| 1324 |
case CHR_IOCTL_PP_EPP_WRITE:
|
| 1325 |
if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
|
| 1326 |
struct ParallelIOArg *parg = arg;
|
| 1327 |
int n = write(fd, parg->buffer, parg->count);
|
| 1328 |
if (n != parg->count) {
|
| 1329 |
return -EIO;
|
| 1330 |
} |
| 1331 |
} |
| 1332 |
break;
|
| 1333 |
default:
|
| 1334 |
return -ENOTSUP;
|
| 1335 |
} |
| 1336 |
return 0; |
| 1337 |
} |
| 1338 |
|
| 1339 |
static void pp_close(CharDriverState *chr) |
| 1340 |
{
|
| 1341 |
ParallelCharDriver *drv = chr->opaque; |
| 1342 |
int fd = drv->fd;
|
| 1343 |
|
| 1344 |
pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
| 1345 |
ioctl(fd, PPRELEASE); |
| 1346 |
close(fd); |
| 1347 |
qemu_free(drv); |
| 1348 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
| 1349 |
} |
| 1350 |
|
| 1351 |
static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
|
| 1352 |
{
|
| 1353 |
const char *filename = qemu_opt_get(opts, "path"); |
| 1354 |
CharDriverState *chr; |
| 1355 |
ParallelCharDriver *drv; |
| 1356 |
int fd;
|
| 1357 |
|
| 1358 |
TFR(fd = open(filename, O_RDWR)); |
| 1359 |
if (fd < 0) |
| 1360 |
return NULL; |
| 1361 |
|
| 1362 |
if (ioctl(fd, PPCLAIM) < 0) { |
| 1363 |
close(fd); |
| 1364 |
return NULL; |
| 1365 |
} |
| 1366 |
|
| 1367 |
drv = qemu_mallocz(sizeof(ParallelCharDriver));
|
| 1368 |
drv->fd = fd; |
| 1369 |
drv->mode = IEEE1284_MODE_COMPAT; |
| 1370 |
|
| 1371 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1372 |
chr->chr_write = null_chr_write; |
| 1373 |
chr->chr_ioctl = pp_ioctl; |
| 1374 |
chr->chr_close = pp_close; |
| 1375 |
chr->opaque = drv; |
| 1376 |
|
| 1377 |
qemu_chr_generic_open(chr); |
| 1378 |
|
| 1379 |
return chr;
|
| 1380 |
} |
| 1381 |
#endif /* __linux__ */ |
| 1382 |
|
| 1383 |
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
|
| 1384 |
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1385 |
{
|
| 1386 |
int fd = (int)(intptr_t)chr->opaque; |
| 1387 |
uint8_t b; |
| 1388 |
|
| 1389 |
switch(cmd) {
|
| 1390 |
case CHR_IOCTL_PP_READ_DATA:
|
| 1391 |
if (ioctl(fd, PPIGDATA, &b) < 0) |
| 1392 |
return -ENOTSUP;
|
| 1393 |
*(uint8_t *)arg = b; |
| 1394 |
break;
|
| 1395 |
case CHR_IOCTL_PP_WRITE_DATA:
|
| 1396 |
b = *(uint8_t *)arg; |
| 1397 |
if (ioctl(fd, PPISDATA, &b) < 0) |
| 1398 |
return -ENOTSUP;
|
| 1399 |
break;
|
| 1400 |
case CHR_IOCTL_PP_READ_CONTROL:
|
| 1401 |
if (ioctl(fd, PPIGCTRL, &b) < 0) |
| 1402 |
return -ENOTSUP;
|
| 1403 |
*(uint8_t *)arg = b; |
| 1404 |
break;
|
| 1405 |
case CHR_IOCTL_PP_WRITE_CONTROL:
|
| 1406 |
b = *(uint8_t *)arg; |
| 1407 |
if (ioctl(fd, PPISCTRL, &b) < 0) |
| 1408 |
return -ENOTSUP;
|
| 1409 |
break;
|
| 1410 |
case CHR_IOCTL_PP_READ_STATUS:
|
| 1411 |
if (ioctl(fd, PPIGSTATUS, &b) < 0) |
| 1412 |
return -ENOTSUP;
|
| 1413 |
*(uint8_t *)arg = b; |
| 1414 |
break;
|
| 1415 |
default:
|
| 1416 |
return -ENOTSUP;
|
| 1417 |
} |
| 1418 |
return 0; |
| 1419 |
} |
| 1420 |
|
| 1421 |
static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
|
| 1422 |
{
|
| 1423 |
const char *filename = qemu_opt_get(opts, "path"); |
| 1424 |
CharDriverState *chr; |
| 1425 |
int fd;
|
| 1426 |
|
| 1427 |
fd = open(filename, O_RDWR); |
| 1428 |
if (fd < 0) |
| 1429 |
return NULL; |
| 1430 |
|
| 1431 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1432 |
chr->opaque = (void *)(intptr_t)fd;
|
| 1433 |
chr->chr_write = null_chr_write; |
| 1434 |
chr->chr_ioctl = pp_ioctl; |
| 1435 |
return chr;
|
| 1436 |
} |
| 1437 |
#endif
|
| 1438 |
|
| 1439 |
#else /* _WIN32 */ |
| 1440 |
|
| 1441 |
typedef struct { |
| 1442 |
int max_size;
|
| 1443 |
HANDLE hcom, hrecv, hsend; |
| 1444 |
OVERLAPPED orecv, osend; |
| 1445 |
BOOL fpipe; |
| 1446 |
DWORD len; |
| 1447 |
} WinCharState; |
| 1448 |
|
| 1449 |
#define NSENDBUF 2048 |
| 1450 |
#define NRECVBUF 2048 |
| 1451 |
#define MAXCONNECT 1 |
| 1452 |
#define NTIMEOUT 5000 |
| 1453 |
|
| 1454 |
static int win_chr_poll(void *opaque); |
| 1455 |
static int win_chr_pipe_poll(void *opaque); |
| 1456 |
|
| 1457 |
static void win_chr_close(CharDriverState *chr) |
| 1458 |
{
|
| 1459 |
WinCharState *s = chr->opaque; |
| 1460 |
|
| 1461 |
if (s->hsend) {
|
| 1462 |
CloseHandle(s->hsend); |
| 1463 |
s->hsend = NULL;
|
| 1464 |
} |
| 1465 |
if (s->hrecv) {
|
| 1466 |
CloseHandle(s->hrecv); |
| 1467 |
s->hrecv = NULL;
|
| 1468 |
} |
| 1469 |
if (s->hcom) {
|
| 1470 |
CloseHandle(s->hcom); |
| 1471 |
s->hcom = NULL;
|
| 1472 |
} |
| 1473 |
if (s->fpipe)
|
| 1474 |
qemu_del_polling_cb(win_chr_pipe_poll, chr); |
| 1475 |
else
|
| 1476 |
qemu_del_polling_cb(win_chr_poll, chr); |
| 1477 |
|
| 1478 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
| 1479 |
} |
| 1480 |
|
| 1481 |
static int win_chr_init(CharDriverState *chr, const char *filename) |
| 1482 |
{
|
| 1483 |
WinCharState *s = chr->opaque; |
| 1484 |
COMMCONFIG comcfg; |
| 1485 |
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
|
| 1486 |
COMSTAT comstat; |
| 1487 |
DWORD size; |
| 1488 |
DWORD err; |
| 1489 |
|
| 1490 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1491 |
if (!s->hsend) {
|
| 1492 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1493 |
goto fail;
|
| 1494 |
} |
| 1495 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1496 |
if (!s->hrecv) {
|
| 1497 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1498 |
goto fail;
|
| 1499 |
} |
| 1500 |
|
| 1501 |
s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
| 1502 |
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
|
| 1503 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
| 1504 |
fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError());
|
| 1505 |
s->hcom = NULL;
|
| 1506 |
goto fail;
|
| 1507 |
} |
| 1508 |
|
| 1509 |
if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
|
| 1510 |
fprintf(stderr, "Failed SetupComm\n");
|
| 1511 |
goto fail;
|
| 1512 |
} |
| 1513 |
|
| 1514 |
ZeroMemory(&comcfg, sizeof(COMMCONFIG));
|
| 1515 |
size = sizeof(COMMCONFIG);
|
| 1516 |
GetDefaultCommConfig(filename, &comcfg, &size); |
| 1517 |
comcfg.dcb.DCBlength = sizeof(DCB);
|
| 1518 |
CommConfigDialog(filename, NULL, &comcfg);
|
| 1519 |
|
| 1520 |
if (!SetCommState(s->hcom, &comcfg.dcb)) {
|
| 1521 |
fprintf(stderr, "Failed SetCommState\n");
|
| 1522 |
goto fail;
|
| 1523 |
} |
| 1524 |
|
| 1525 |
if (!SetCommMask(s->hcom, EV_ERR)) {
|
| 1526 |
fprintf(stderr, "Failed SetCommMask\n");
|
| 1527 |
goto fail;
|
| 1528 |
} |
| 1529 |
|
| 1530 |
cto.ReadIntervalTimeout = MAXDWORD; |
| 1531 |
if (!SetCommTimeouts(s->hcom, &cto)) {
|
| 1532 |
fprintf(stderr, "Failed SetCommTimeouts\n");
|
| 1533 |
goto fail;
|
| 1534 |
} |
| 1535 |
|
| 1536 |
if (!ClearCommError(s->hcom, &err, &comstat)) {
|
| 1537 |
fprintf(stderr, "Failed ClearCommError\n");
|
| 1538 |
goto fail;
|
| 1539 |
} |
| 1540 |
qemu_add_polling_cb(win_chr_poll, chr); |
| 1541 |
return 0; |
| 1542 |
|
| 1543 |
fail:
|
| 1544 |
win_chr_close(chr); |
| 1545 |
return -1; |
| 1546 |
} |
| 1547 |
|
| 1548 |
static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
| 1549 |
{
|
| 1550 |
WinCharState *s = chr->opaque; |
| 1551 |
DWORD len, ret, size, err; |
| 1552 |
|
| 1553 |
len = len1; |
| 1554 |
ZeroMemory(&s->osend, sizeof(s->osend));
|
| 1555 |
s->osend.hEvent = s->hsend; |
| 1556 |
while (len > 0) { |
| 1557 |
if (s->hsend)
|
| 1558 |
ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
| 1559 |
else
|
| 1560 |
ret = WriteFile(s->hcom, buf, len, &size, NULL);
|
| 1561 |
if (!ret) {
|
| 1562 |
err = GetLastError(); |
| 1563 |
if (err == ERROR_IO_PENDING) {
|
| 1564 |
ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
| 1565 |
if (ret) {
|
| 1566 |
buf += size; |
| 1567 |
len -= size; |
| 1568 |
} else {
|
| 1569 |
break;
|
| 1570 |
} |
| 1571 |
} else {
|
| 1572 |
break;
|
| 1573 |
} |
| 1574 |
} else {
|
| 1575 |
buf += size; |
| 1576 |
len -= size; |
| 1577 |
} |
| 1578 |
} |
| 1579 |
return len1 - len;
|
| 1580 |
} |
| 1581 |
|
| 1582 |
static int win_chr_read_poll(CharDriverState *chr) |
| 1583 |
{
|
| 1584 |
WinCharState *s = chr->opaque; |
| 1585 |
|
| 1586 |
s->max_size = qemu_chr_can_read(chr); |
| 1587 |
return s->max_size;
|
| 1588 |
} |
| 1589 |
|
| 1590 |
static void win_chr_readfile(CharDriverState *chr) |
| 1591 |
{
|
| 1592 |
WinCharState *s = chr->opaque; |
| 1593 |
int ret, err;
|
| 1594 |
uint8_t buf[READ_BUF_LEN]; |
| 1595 |
DWORD size; |
| 1596 |
|
| 1597 |
ZeroMemory(&s->orecv, sizeof(s->orecv));
|
| 1598 |
s->orecv.hEvent = s->hrecv; |
| 1599 |
ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
| 1600 |
if (!ret) {
|
| 1601 |
err = GetLastError(); |
| 1602 |
if (err == ERROR_IO_PENDING) {
|
| 1603 |
ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
| 1604 |
} |
| 1605 |
} |
| 1606 |
|
| 1607 |
if (size > 0) { |
| 1608 |
qemu_chr_read(chr, buf, size); |
| 1609 |
} |
| 1610 |
} |
| 1611 |
|
| 1612 |
static void win_chr_read(CharDriverState *chr) |
| 1613 |
{
|
| 1614 |
WinCharState *s = chr->opaque; |
| 1615 |
|
| 1616 |
if (s->len > s->max_size)
|
| 1617 |
s->len = s->max_size; |
| 1618 |
if (s->len == 0) |
| 1619 |
return;
|
| 1620 |
|
| 1621 |
win_chr_readfile(chr); |
| 1622 |
} |
| 1623 |
|
| 1624 |
static int win_chr_poll(void *opaque) |
| 1625 |
{
|
| 1626 |
CharDriverState *chr = opaque; |
| 1627 |
WinCharState *s = chr->opaque; |
| 1628 |
COMSTAT status; |
| 1629 |
DWORD comerr; |
| 1630 |
|
| 1631 |
ClearCommError(s->hcom, &comerr, &status); |
| 1632 |
if (status.cbInQue > 0) { |
| 1633 |
s->len = status.cbInQue; |
| 1634 |
win_chr_read_poll(chr); |
| 1635 |
win_chr_read(chr); |
| 1636 |
return 1; |
| 1637 |
} |
| 1638 |
return 0; |
| 1639 |
} |
| 1640 |
|
| 1641 |
static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
|
| 1642 |
{
|
| 1643 |
const char *filename = qemu_opt_get(opts, "path"); |
| 1644 |
CharDriverState *chr; |
| 1645 |
WinCharState *s; |
| 1646 |
|
| 1647 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1648 |
s = qemu_mallocz(sizeof(WinCharState));
|
| 1649 |
chr->opaque = s; |
| 1650 |
chr->chr_write = win_chr_write; |
| 1651 |
chr->chr_close = win_chr_close; |
| 1652 |
|
| 1653 |
if (win_chr_init(chr, filename) < 0) { |
| 1654 |
free(s); |
| 1655 |
free(chr); |
| 1656 |
return NULL; |
| 1657 |
} |
| 1658 |
qemu_chr_generic_open(chr); |
| 1659 |
return chr;
|
| 1660 |
} |
| 1661 |
|
| 1662 |
static int win_chr_pipe_poll(void *opaque) |
| 1663 |
{
|
| 1664 |
CharDriverState *chr = opaque; |
| 1665 |
WinCharState *s = chr->opaque; |
| 1666 |
DWORD size; |
| 1667 |
|
| 1668 |
PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
| 1669 |
if (size > 0) { |
| 1670 |
s->len = size; |
| 1671 |
win_chr_read_poll(chr); |
| 1672 |
win_chr_read(chr); |
| 1673 |
return 1; |
| 1674 |
} |
| 1675 |
return 0; |
| 1676 |
} |
| 1677 |
|
| 1678 |
static int win_chr_pipe_init(CharDriverState *chr, const char *filename) |
| 1679 |
{
|
| 1680 |
WinCharState *s = chr->opaque; |
| 1681 |
OVERLAPPED ov; |
| 1682 |
int ret;
|
| 1683 |
DWORD size; |
| 1684 |
char openname[256]; |
| 1685 |
|
| 1686 |
s->fpipe = TRUE; |
| 1687 |
|
| 1688 |
s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1689 |
if (!s->hsend) {
|
| 1690 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1691 |
goto fail;
|
| 1692 |
} |
| 1693 |
s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1694 |
if (!s->hrecv) {
|
| 1695 |
fprintf(stderr, "Failed CreateEvent\n");
|
| 1696 |
goto fail;
|
| 1697 |
} |
| 1698 |
|
| 1699 |
snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
| 1700 |
s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
| 1701 |
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
| 1702 |
PIPE_WAIT, |
| 1703 |
MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
|
| 1704 |
if (s->hcom == INVALID_HANDLE_VALUE) {
|
| 1705 |
fprintf(stderr, "Failed CreateNamedPipe (%lu)\n", GetLastError());
|
| 1706 |
s->hcom = NULL;
|
| 1707 |
goto fail;
|
| 1708 |
} |
| 1709 |
|
| 1710 |
ZeroMemory(&ov, sizeof(ov));
|
| 1711 |
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1712 |
ret = ConnectNamedPipe(s->hcom, &ov); |
| 1713 |
if (ret) {
|
| 1714 |
fprintf(stderr, "Failed ConnectNamedPipe\n");
|
| 1715 |
goto fail;
|
| 1716 |
} |
| 1717 |
|
| 1718 |
ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
| 1719 |
if (!ret) {
|
| 1720 |
fprintf(stderr, "Failed GetOverlappedResult\n");
|
| 1721 |
if (ov.hEvent) {
|
| 1722 |
CloseHandle(ov.hEvent); |
| 1723 |
ov.hEvent = NULL;
|
| 1724 |
} |
| 1725 |
goto fail;
|
| 1726 |
} |
| 1727 |
|
| 1728 |
if (ov.hEvent) {
|
| 1729 |
CloseHandle(ov.hEvent); |
| 1730 |
ov.hEvent = NULL;
|
| 1731 |
} |
| 1732 |
qemu_add_polling_cb(win_chr_pipe_poll, chr); |
| 1733 |
return 0; |
| 1734 |
|
| 1735 |
fail:
|
| 1736 |
win_chr_close(chr); |
| 1737 |
return -1; |
| 1738 |
} |
| 1739 |
|
| 1740 |
|
| 1741 |
static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
|
| 1742 |
{
|
| 1743 |
const char *filename = qemu_opt_get(opts, "path"); |
| 1744 |
CharDriverState *chr; |
| 1745 |
WinCharState *s; |
| 1746 |
|
| 1747 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1748 |
s = qemu_mallocz(sizeof(WinCharState));
|
| 1749 |
chr->opaque = s; |
| 1750 |
chr->chr_write = win_chr_write; |
| 1751 |
chr->chr_close = win_chr_close; |
| 1752 |
|
| 1753 |
if (win_chr_pipe_init(chr, filename) < 0) { |
| 1754 |
free(s); |
| 1755 |
free(chr); |
| 1756 |
return NULL; |
| 1757 |
} |
| 1758 |
qemu_chr_generic_open(chr); |
| 1759 |
return chr;
|
| 1760 |
} |
| 1761 |
|
| 1762 |
static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
|
| 1763 |
{
|
| 1764 |
CharDriverState *chr; |
| 1765 |
WinCharState *s; |
| 1766 |
|
| 1767 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1768 |
s = qemu_mallocz(sizeof(WinCharState));
|
| 1769 |
s->hcom = fd_out; |
| 1770 |
chr->opaque = s; |
| 1771 |
chr->chr_write = win_chr_write; |
| 1772 |
qemu_chr_generic_open(chr); |
| 1773 |
return chr;
|
| 1774 |
} |
| 1775 |
|
| 1776 |
static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
|
| 1777 |
{
|
| 1778 |
return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
|
| 1779 |
} |
| 1780 |
|
| 1781 |
static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
|
| 1782 |
{
|
| 1783 |
const char *file_out = qemu_opt_get(opts, "path"); |
| 1784 |
HANDLE fd_out; |
| 1785 |
|
| 1786 |
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
|
| 1787 |
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
| 1788 |
if (fd_out == INVALID_HANDLE_VALUE)
|
| 1789 |
return NULL; |
| 1790 |
|
| 1791 |
return qemu_chr_open_win_file(fd_out);
|
| 1792 |
} |
| 1793 |
#endif /* !_WIN32 */ |
| 1794 |
|
| 1795 |
/***********************************************************/
|
| 1796 |
/* UDP Net console */
|
| 1797 |
|
| 1798 |
typedef struct { |
| 1799 |
int fd;
|
| 1800 |
uint8_t buf[READ_BUF_LEN]; |
| 1801 |
int bufcnt;
|
| 1802 |
int bufptr;
|
| 1803 |
int max_size;
|
| 1804 |
} NetCharDriver; |
| 1805 |
|
| 1806 |
static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 1807 |
{
|
| 1808 |
NetCharDriver *s = chr->opaque; |
| 1809 |
|
| 1810 |
return send(s->fd, (const void *)buf, len, 0); |
| 1811 |
} |
| 1812 |
|
| 1813 |
static int udp_chr_read_poll(void *opaque) |
| 1814 |
{
|
| 1815 |
CharDriverState *chr = opaque; |
| 1816 |
NetCharDriver *s = chr->opaque; |
| 1817 |
|
| 1818 |
s->max_size = qemu_chr_can_read(chr); |
| 1819 |
|
| 1820 |
/* If there were any stray characters in the queue process them
|
| 1821 |
* first
|
| 1822 |
*/
|
| 1823 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
| 1824 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
| 1825 |
s->bufptr++; |
| 1826 |
s->max_size = qemu_chr_can_read(chr); |
| 1827 |
} |
| 1828 |
return s->max_size;
|
| 1829 |
} |
| 1830 |
|
| 1831 |
static void udp_chr_read(void *opaque) |
| 1832 |
{
|
| 1833 |
CharDriverState *chr = opaque; |
| 1834 |
NetCharDriver *s = chr->opaque; |
| 1835 |
|
| 1836 |
if (s->max_size == 0) |
| 1837 |
return;
|
| 1838 |
s->bufcnt = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0); |
| 1839 |
s->bufptr = s->bufcnt; |
| 1840 |
if (s->bufcnt <= 0) |
| 1841 |
return;
|
| 1842 |
|
| 1843 |
s->bufptr = 0;
|
| 1844 |
while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
| 1845 |
qemu_chr_read(chr, &s->buf[s->bufptr], 1);
|
| 1846 |
s->bufptr++; |
| 1847 |
s->max_size = qemu_chr_can_read(chr); |
| 1848 |
} |
| 1849 |
} |
| 1850 |
|
| 1851 |
static void udp_chr_update_read_handler(CharDriverState *chr) |
| 1852 |
{
|
| 1853 |
NetCharDriver *s = chr->opaque; |
| 1854 |
|
| 1855 |
if (s->fd >= 0) { |
| 1856 |
qemu_set_fd_handler2(s->fd, udp_chr_read_poll, |
| 1857 |
udp_chr_read, NULL, chr);
|
| 1858 |
} |
| 1859 |
} |
| 1860 |
|
| 1861 |
static void udp_chr_close(CharDriverState *chr) |
| 1862 |
{
|
| 1863 |
NetCharDriver *s = chr->opaque; |
| 1864 |
if (s->fd >= 0) { |
| 1865 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 1866 |
closesocket(s->fd); |
| 1867 |
} |
| 1868 |
qemu_free(s); |
| 1869 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
| 1870 |
} |
| 1871 |
|
| 1872 |
static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
|
| 1873 |
{
|
| 1874 |
CharDriverState *chr = NULL;
|
| 1875 |
NetCharDriver *s = NULL;
|
| 1876 |
int fd = -1; |
| 1877 |
|
| 1878 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 1879 |
s = qemu_mallocz(sizeof(NetCharDriver));
|
| 1880 |
|
| 1881 |
fd = inet_dgram_opts(opts); |
| 1882 |
if (fd < 0) { |
| 1883 |
fprintf(stderr, "inet_dgram_opts failed\n");
|
| 1884 |
goto return_err;
|
| 1885 |
} |
| 1886 |
|
| 1887 |
s->fd = fd; |
| 1888 |
s->bufcnt = 0;
|
| 1889 |
s->bufptr = 0;
|
| 1890 |
chr->opaque = s; |
| 1891 |
chr->chr_write = udp_chr_write; |
| 1892 |
chr->chr_update_read_handler = udp_chr_update_read_handler; |
| 1893 |
chr->chr_close = udp_chr_close; |
| 1894 |
return chr;
|
| 1895 |
|
| 1896 |
return_err:
|
| 1897 |
if (chr)
|
| 1898 |
free(chr); |
| 1899 |
if (s)
|
| 1900 |
free(s); |
| 1901 |
if (fd >= 0) |
| 1902 |
closesocket(fd); |
| 1903 |
return NULL; |
| 1904 |
} |
| 1905 |
|
| 1906 |
/***********************************************************/
|
| 1907 |
/* TCP Net console */
|
| 1908 |
|
| 1909 |
typedef struct { |
| 1910 |
int fd, listen_fd;
|
| 1911 |
int connected;
|
| 1912 |
int max_size;
|
| 1913 |
int do_telnetopt;
|
| 1914 |
int do_nodelay;
|
| 1915 |
int is_unix;
|
| 1916 |
int msgfd;
|
| 1917 |
} TCPCharDriver; |
| 1918 |
|
| 1919 |
static void tcp_chr_accept(void *opaque); |
| 1920 |
|
| 1921 |
static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 1922 |
{
|
| 1923 |
TCPCharDriver *s = chr->opaque; |
| 1924 |
if (s->connected) {
|
| 1925 |
return send_all(s->fd, buf, len);
|
| 1926 |
} else {
|
| 1927 |
/* XXX: indicate an error ? */
|
| 1928 |
return len;
|
| 1929 |
} |
| 1930 |
} |
| 1931 |
|
| 1932 |
static int tcp_chr_read_poll(void *opaque) |
| 1933 |
{
|
| 1934 |
CharDriverState *chr = opaque; |
| 1935 |
TCPCharDriver *s = chr->opaque; |
| 1936 |
if (!s->connected)
|
| 1937 |
return 0; |
| 1938 |
s->max_size = qemu_chr_can_read(chr); |
| 1939 |
return s->max_size;
|
| 1940 |
} |
| 1941 |
|
| 1942 |
#define IAC 255 |
| 1943 |
#define IAC_BREAK 243 |
| 1944 |
static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
| 1945 |
TCPCharDriver *s, |
| 1946 |
uint8_t *buf, int *size)
|
| 1947 |
{
|
| 1948 |
/* Handle any telnet client's basic IAC options to satisfy char by
|
| 1949 |
* char mode with no echo. All IAC options will be removed from
|
| 1950 |
* the buf and the do_telnetopt variable will be used to track the
|
| 1951 |
* state of the width of the IAC information.
|
| 1952 |
*
|
| 1953 |
* IAC commands come in sets of 3 bytes with the exception of the
|
| 1954 |
* "IAC BREAK" command and the double IAC.
|
| 1955 |
*/
|
| 1956 |
|
| 1957 |
int i;
|
| 1958 |
int j = 0; |
| 1959 |
|
| 1960 |
for (i = 0; i < *size; i++) { |
| 1961 |
if (s->do_telnetopt > 1) { |
| 1962 |
if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
| 1963 |
/* Double IAC means send an IAC */
|
| 1964 |
if (j != i)
|
| 1965 |
buf[j] = buf[i]; |
| 1966 |
j++; |
| 1967 |
s->do_telnetopt = 1;
|
| 1968 |
} else {
|
| 1969 |
if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
| 1970 |
/* Handle IAC break commands by sending a serial break */
|
| 1971 |
qemu_chr_event(chr, CHR_EVENT_BREAK); |
| 1972 |
s->do_telnetopt++; |
| 1973 |
} |
| 1974 |
s->do_telnetopt++; |
| 1975 |
} |
| 1976 |
if (s->do_telnetopt >= 4) { |
| 1977 |
s->do_telnetopt = 1;
|
| 1978 |
} |
| 1979 |
} else {
|
| 1980 |
if ((unsigned char)buf[i] == IAC) { |
| 1981 |
s->do_telnetopt = 2;
|
| 1982 |
} else {
|
| 1983 |
if (j != i)
|
| 1984 |
buf[j] = buf[i]; |
| 1985 |
j++; |
| 1986 |
} |
| 1987 |
} |
| 1988 |
} |
| 1989 |
*size = j; |
| 1990 |
} |
| 1991 |
|
| 1992 |
static int tcp_get_msgfd(CharDriverState *chr) |
| 1993 |
{
|
| 1994 |
TCPCharDriver *s = chr->opaque; |
| 1995 |
int fd = s->msgfd;
|
| 1996 |
s->msgfd = -1;
|
| 1997 |
return fd;
|
| 1998 |
} |
| 1999 |
|
| 2000 |
#ifndef _WIN32
|
| 2001 |
static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg) |
| 2002 |
{
|
| 2003 |
TCPCharDriver *s = chr->opaque; |
| 2004 |
struct cmsghdr *cmsg;
|
| 2005 |
|
| 2006 |
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
|
| 2007 |
int fd;
|
| 2008 |
|
| 2009 |
if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)) || |
| 2010 |
cmsg->cmsg_level != SOL_SOCKET || |
| 2011 |
cmsg->cmsg_type != SCM_RIGHTS) |
| 2012 |
continue;
|
| 2013 |
|
| 2014 |
fd = *((int *)CMSG_DATA(cmsg));
|
| 2015 |
if (fd < 0) |
| 2016 |
continue;
|
| 2017 |
|
| 2018 |
if (s->msgfd != -1) |
| 2019 |
close(s->msgfd); |
| 2020 |
s->msgfd = fd; |
| 2021 |
} |
| 2022 |
} |
| 2023 |
|
| 2024 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
| 2025 |
{
|
| 2026 |
TCPCharDriver *s = chr->opaque; |
| 2027 |
struct msghdr msg = { NULL, }; |
| 2028 |
struct iovec iov[1]; |
| 2029 |
union {
|
| 2030 |
struct cmsghdr cmsg;
|
| 2031 |
char control[CMSG_SPACE(sizeof(int))]; |
| 2032 |
} msg_control; |
| 2033 |
ssize_t ret; |
| 2034 |
|
| 2035 |
iov[0].iov_base = buf;
|
| 2036 |
iov[0].iov_len = len;
|
| 2037 |
|
| 2038 |
msg.msg_iov = iov; |
| 2039 |
msg.msg_iovlen = 1;
|
| 2040 |
msg.msg_control = &msg_control; |
| 2041 |
msg.msg_controllen = sizeof(msg_control);
|
| 2042 |
|
| 2043 |
ret = recvmsg(s->fd, &msg, 0);
|
| 2044 |
if (ret > 0 && s->is_unix) |
| 2045 |
unix_process_msgfd(chr, &msg); |
| 2046 |
|
| 2047 |
return ret;
|
| 2048 |
} |
| 2049 |
#else
|
| 2050 |
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
| 2051 |
{
|
| 2052 |
TCPCharDriver *s = chr->opaque; |
| 2053 |
return recv(s->fd, buf, len, 0); |
| 2054 |
} |
| 2055 |
#endif
|
| 2056 |
|
| 2057 |
static void tcp_chr_read(void *opaque) |
| 2058 |
{
|
| 2059 |
CharDriverState *chr = opaque; |
| 2060 |
TCPCharDriver *s = chr->opaque; |
| 2061 |
uint8_t buf[READ_BUF_LEN]; |
| 2062 |
int len, size;
|
| 2063 |
|
| 2064 |
if (!s->connected || s->max_size <= 0) |
| 2065 |
return;
|
| 2066 |
len = sizeof(buf);
|
| 2067 |
if (len > s->max_size)
|
| 2068 |
len = s->max_size; |
| 2069 |
size = tcp_chr_recv(chr, (void *)buf, len);
|
| 2070 |
if (size == 0) { |
| 2071 |
/* connection closed */
|
| 2072 |
s->connected = 0;
|
| 2073 |
if (s->listen_fd >= 0) { |
| 2074 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
| 2075 |
} |
| 2076 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 2077 |
closesocket(s->fd); |
| 2078 |
s->fd = -1;
|
| 2079 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
| 2080 |
} else if (size > 0) { |
| 2081 |
if (s->do_telnetopt)
|
| 2082 |
tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
| 2083 |
if (size > 0) |
| 2084 |
qemu_chr_read(chr, buf, size); |
| 2085 |
} |
| 2086 |
} |
| 2087 |
|
| 2088 |
#ifndef _WIN32
|
| 2089 |
CharDriverState *qemu_chr_open_eventfd(int eventfd)
|
| 2090 |
{
|
| 2091 |
return qemu_chr_open_fd(eventfd, eventfd);
|
| 2092 |
} |
| 2093 |
#endif
|
| 2094 |
|
| 2095 |
static void tcp_chr_connect(void *opaque) |
| 2096 |
{
|
| 2097 |
CharDriverState *chr = opaque; |
| 2098 |
TCPCharDriver *s = chr->opaque; |
| 2099 |
|
| 2100 |
s->connected = 1;
|
| 2101 |
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll, |
| 2102 |
tcp_chr_read, NULL, chr);
|
| 2103 |
qemu_chr_generic_open(chr); |
| 2104 |
} |
| 2105 |
|
| 2106 |
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
| 2107 |
static void tcp_chr_telnet_init(int fd) |
| 2108 |
{
|
| 2109 |
char buf[3]; |
| 2110 |
/* Send the telnet negotion to put telnet in binary, no echo, single char mode */
|
| 2111 |
IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
| 2112 |
send(fd, (char *)buf, 3, 0); |
| 2113 |
IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
| 2114 |
send(fd, (char *)buf, 3, 0); |
| 2115 |
IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
| 2116 |
send(fd, (char *)buf, 3, 0); |
| 2117 |
IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
| 2118 |
send(fd, (char *)buf, 3, 0); |
| 2119 |
} |
| 2120 |
|
| 2121 |
static void socket_set_nodelay(int fd) |
| 2122 |
{
|
| 2123 |
int val = 1; |
| 2124 |
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&val, sizeof(val)); |
| 2125 |
} |
| 2126 |
|
| 2127 |
static void tcp_chr_accept(void *opaque) |
| 2128 |
{
|
| 2129 |
CharDriverState *chr = opaque; |
| 2130 |
TCPCharDriver *s = chr->opaque; |
| 2131 |
struct sockaddr_in saddr;
|
| 2132 |
#ifndef _WIN32
|
| 2133 |
struct sockaddr_un uaddr;
|
| 2134 |
#endif
|
| 2135 |
struct sockaddr *addr;
|
| 2136 |
socklen_t len; |
| 2137 |
int fd;
|
| 2138 |
|
| 2139 |
for(;;) {
|
| 2140 |
#ifndef _WIN32
|
| 2141 |
if (s->is_unix) {
|
| 2142 |
len = sizeof(uaddr);
|
| 2143 |
addr = (struct sockaddr *)&uaddr;
|
| 2144 |
} else
|
| 2145 |
#endif
|
| 2146 |
{
|
| 2147 |
len = sizeof(saddr);
|
| 2148 |
addr = (struct sockaddr *)&saddr;
|
| 2149 |
} |
| 2150 |
fd = qemu_accept(s->listen_fd, addr, &len); |
| 2151 |
if (fd < 0 && errno != EINTR) { |
| 2152 |
return;
|
| 2153 |
} else if (fd >= 0) { |
| 2154 |
if (s->do_telnetopt)
|
| 2155 |
tcp_chr_telnet_init(fd); |
| 2156 |
break;
|
| 2157 |
} |
| 2158 |
} |
| 2159 |
socket_set_nonblock(fd); |
| 2160 |
if (s->do_nodelay)
|
| 2161 |
socket_set_nodelay(fd); |
| 2162 |
s->fd = fd; |
| 2163 |
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
| 2164 |
tcp_chr_connect(chr); |
| 2165 |
} |
| 2166 |
|
| 2167 |
static void tcp_chr_close(CharDriverState *chr) |
| 2168 |
{
|
| 2169 |
TCPCharDriver *s = chr->opaque; |
| 2170 |
if (s->fd >= 0) { |
| 2171 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 2172 |
closesocket(s->fd); |
| 2173 |
} |
| 2174 |
if (s->listen_fd >= 0) { |
| 2175 |
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
| 2176 |
closesocket(s->listen_fd); |
| 2177 |
} |
| 2178 |
qemu_free(s); |
| 2179 |
qemu_chr_event(chr, CHR_EVENT_CLOSED); |
| 2180 |
} |
| 2181 |
|
| 2182 |
static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
|
| 2183 |
{
|
| 2184 |
CharDriverState *chr = NULL;
|
| 2185 |
TCPCharDriver *s = NULL;
|
| 2186 |
int fd = -1; |
| 2187 |
int is_listen;
|
| 2188 |
int is_waitconnect;
|
| 2189 |
int do_nodelay;
|
| 2190 |
int is_unix;
|
| 2191 |
int is_telnet;
|
| 2192 |
|
| 2193 |
is_listen = qemu_opt_get_bool(opts, "server", 0); |
| 2194 |
is_waitconnect = qemu_opt_get_bool(opts, "wait", 1); |
| 2195 |
is_telnet = qemu_opt_get_bool(opts, "telnet", 0); |
| 2196 |
do_nodelay = !qemu_opt_get_bool(opts, "delay", 1); |
| 2197 |
is_unix = qemu_opt_get(opts, "path") != NULL; |
| 2198 |
if (!is_listen)
|
| 2199 |
is_waitconnect = 0;
|
| 2200 |
|
| 2201 |
chr = qemu_mallocz(sizeof(CharDriverState));
|
| 2202 |
s = qemu_mallocz(sizeof(TCPCharDriver));
|
| 2203 |
|
| 2204 |
if (is_unix) {
|
| 2205 |
if (is_listen) {
|
| 2206 |
fd = unix_listen_opts(opts); |
| 2207 |
} else {
|
| 2208 |
fd = unix_connect_opts(opts); |
| 2209 |
} |
| 2210 |
} else {
|
| 2211 |
if (is_listen) {
|
| 2212 |
fd = inet_listen_opts(opts, 0);
|
| 2213 |
} else {
|
| 2214 |
fd = inet_connect_opts(opts); |
| 2215 |
} |
| 2216 |
} |
| 2217 |
if (fd < 0) |
| 2218 |
goto fail;
|
| 2219 |
|
| 2220 |
if (!is_waitconnect)
|
| 2221 |
socket_set_nonblock(fd); |
| 2222 |
|
| 2223 |
s->connected = 0;
|
| 2224 |
s->fd = -1;
|
| 2225 |
s->listen_fd = -1;
|
| 2226 |
s->msgfd = -1;
|
| 2227 |
s->is_unix = is_unix; |
| 2228 |
s->do_nodelay = do_nodelay && !is_unix; |
| 2229 |
|
| 2230 |
chr->opaque = s; |
| 2231 |
chr->chr_write = tcp_chr_write; |
| 2232 |
chr->chr_close = tcp_chr_close; |
| 2233 |
chr->get_msgfd = tcp_get_msgfd; |
| 2234 |
|
| 2235 |
if (is_listen) {
|
| 2236 |
s->listen_fd = fd; |
| 2237 |
qemu_set_fd_handler(s->listen_fd, tcp_chr_accept, NULL, chr);
|
| 2238 |
if (is_telnet)
|
| 2239 |
s->do_telnetopt = 1;
|
| 2240 |
|
| 2241 |
} else {
|
| 2242 |
s->connected = 1;
|
| 2243 |
s->fd = fd; |
| 2244 |
socket_set_nodelay(fd); |
| 2245 |
tcp_chr_connect(chr); |
| 2246 |
} |
| 2247 |
|
| 2248 |
/* for "info chardev" monitor command */
|
| 2249 |
chr->filename = qemu_malloc(256);
|
| 2250 |
if (is_unix) {
|
| 2251 |
snprintf(chr->filename, 256, "unix:%s%s", |
| 2252 |
qemu_opt_get(opts, "path"),
|
| 2253 |
qemu_opt_get_bool(opts, "server", 0) ? ",server" : ""); |
| 2254 |
} else if (is_telnet) { |
| 2255 |
snprintf(chr->filename, 256, "telnet:%s:%s%s", |
| 2256 |
qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"), |
| 2257 |
qemu_opt_get_bool(opts, "server", 0) ? ",server" : ""); |
| 2258 |
} else {
|
| 2259 |
snprintf(chr->filename, 256, "tcp:%s:%s%s", |
| 2260 |
qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"), |
| 2261 |
qemu_opt_get_bool(opts, "server", 0) ? ",server" : ""); |
| 2262 |
} |
| 2263 |
|
| 2264 |
if (is_listen && is_waitconnect) {
|
| 2265 |
printf("QEMU waiting for connection on: %s\n",
|
| 2266 |
chr->filename); |
| 2267 |
tcp_chr_accept(chr); |
| 2268 |
socket_set_nonblock(s->listen_fd); |
| 2269 |
} |
| 2270 |
return chr;
|
| 2271 |
|
| 2272 |
fail:
|
| 2273 |
if (fd >= 0) |
| 2274 |
closesocket(fd); |
| 2275 |
qemu_free(s); |
| 2276 |
qemu_free(chr); |
| 2277 |
return NULL; |
| 2278 |
} |
| 2279 |
|
| 2280 |
/***********************************************************/
|
| 2281 |
/* Memory chardev */
|
| 2282 |
typedef struct { |
| 2283 |
size_t outbuf_size; |
| 2284 |
size_t outbuf_capacity; |
| 2285 |
uint8_t *outbuf; |
| 2286 |
} MemoryDriver; |
| 2287 |
|
| 2288 |
static int mem_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2289 |
{
|
| 2290 |
MemoryDriver *d = chr->opaque; |
| 2291 |
|
| 2292 |
/* TODO: the QString implementation has the same code, we should
|
| 2293 |
* introduce a generic way to do this in cutils.c */
|
| 2294 |
if (d->outbuf_capacity < d->outbuf_size + len) {
|
| 2295 |
/* grow outbuf */
|
| 2296 |
d->outbuf_capacity += len; |
| 2297 |
d->outbuf_capacity *= 2;
|
| 2298 |
d->outbuf = qemu_realloc(d->outbuf, d->outbuf_capacity); |
| 2299 |
} |
| 2300 |
|
| 2301 |
memcpy(d->outbuf + d->outbuf_size, buf, len); |
| 2302 |
d->outbuf_size += len; |
| 2303 |
|
| 2304 |
return len;
|
| 2305 |
} |
| 2306 |
|
| 2307 |
void qemu_chr_init_mem(CharDriverState *chr)
|
| 2308 |
{
|
| 2309 |
MemoryDriver *d; |
| 2310 |
|
| 2311 |
d = qemu_malloc(sizeof(*d));
|
| 2312 |
d->outbuf_size = 0;
|
| 2313 |
d->outbuf_capacity = 4096;
|
| 2314 |
d->outbuf = qemu_mallocz(d->outbuf_capacity); |
| 2315 |
|
| 2316 |
memset(chr, 0, sizeof(*chr)); |
| 2317 |
chr->opaque = d; |
| 2318 |
chr->chr_write = mem_chr_write; |
| 2319 |
} |
| 2320 |
|
| 2321 |
QString *qemu_chr_mem_to_qs(CharDriverState *chr) |
| 2322 |
{
|
| 2323 |
MemoryDriver *d = chr->opaque; |
| 2324 |
return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1); |
| 2325 |
} |
| 2326 |
|
| 2327 |
/* NOTE: this driver can not be closed with qemu_chr_close()! */
|
| 2328 |
void qemu_chr_close_mem(CharDriverState *chr)
|
| 2329 |
{
|
| 2330 |
MemoryDriver *d = chr->opaque; |
| 2331 |
|
| 2332 |
qemu_free(d->outbuf); |
| 2333 |
qemu_free(chr->opaque); |
| 2334 |
chr->opaque = NULL;
|
| 2335 |
chr->chr_write = NULL;
|
| 2336 |
} |
| 2337 |
|
| 2338 |
size_t qemu_chr_mem_osize(const CharDriverState *chr)
|
| 2339 |
{
|
| 2340 |
const MemoryDriver *d = chr->opaque;
|
| 2341 |
return d->outbuf_size;
|
| 2342 |
} |
| 2343 |
|
| 2344 |
QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename) |
| 2345 |
{
|
| 2346 |
char host[65], port[33], width[8], height[8]; |
| 2347 |
int pos;
|
| 2348 |
const char *p; |
| 2349 |
QemuOpts *opts; |
| 2350 |
|
| 2351 |
opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1); |
| 2352 |
if (NULL == opts) |
| 2353 |
return NULL; |
| 2354 |
|
| 2355 |
if (strstart(filename, "mon:", &p)) { |
| 2356 |
filename = p; |
| 2357 |
qemu_opt_set(opts, "mux", "on"); |
| 2358 |
} |
| 2359 |
|
| 2360 |
if (strcmp(filename, "null") == 0 || |
| 2361 |
strcmp(filename, "pty") == 0 || |
| 2362 |
strcmp(filename, "msmouse") == 0 || |
| 2363 |
strcmp(filename, "braille") == 0 || |
| 2364 |
strcmp(filename, "stdio") == 0) { |
| 2365 |
qemu_opt_set(opts, "backend", filename);
|
| 2366 |
return opts;
|
| 2367 |
} |
| 2368 |
if (strstart(filename, "vc", &p)) { |
| 2369 |
qemu_opt_set(opts, "backend", "vc"); |
| 2370 |
if (*p == ':') { |
| 2371 |
if (sscanf(p+1, "%8[0-9]x%8[0-9]", width, height) == 2) { |
| 2372 |
/* pixels */
|
| 2373 |
qemu_opt_set(opts, "width", width);
|
| 2374 |
qemu_opt_set(opts, "height", height);
|
| 2375 |
} else if (sscanf(p+1, "%8[0-9]Cx%8[0-9]C", width, height) == 2) { |
| 2376 |
/* chars */
|
| 2377 |
qemu_opt_set(opts, "cols", width);
|
| 2378 |
qemu_opt_set(opts, "rows", height);
|
| 2379 |
} else {
|
| 2380 |
goto fail;
|
| 2381 |
} |
| 2382 |
} |
| 2383 |
return opts;
|
| 2384 |
} |
| 2385 |
if (strcmp(filename, "con:") == 0) { |
| 2386 |
qemu_opt_set(opts, "backend", "console"); |
| 2387 |
return opts;
|
| 2388 |
} |
| 2389 |
if (strstart(filename, "COM", NULL)) { |
| 2390 |
qemu_opt_set(opts, "backend", "serial"); |
| 2391 |
qemu_opt_set(opts, "path", filename);
|
| 2392 |
return opts;
|
| 2393 |
} |
| 2394 |
if (strstart(filename, "file:", &p)) { |
| 2395 |
qemu_opt_set(opts, "backend", "file"); |
| 2396 |
qemu_opt_set(opts, "path", p);
|
| 2397 |
return opts;
|
| 2398 |
} |
| 2399 |
if (strstart(filename, "pipe:", &p)) { |
| 2400 |
qemu_opt_set(opts, "backend", "pipe"); |
| 2401 |
qemu_opt_set(opts, "path", p);
|
| 2402 |
return opts;
|
| 2403 |
} |
| 2404 |
if (strstart(filename, "tcp:", &p) || |
| 2405 |
strstart(filename, "telnet:", &p)) {
|
| 2406 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
| 2407 |
host[0] = 0; |
| 2408 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) |
| 2409 |
goto fail;
|
| 2410 |
} |
| 2411 |
qemu_opt_set(opts, "backend", "socket"); |
| 2412 |
qemu_opt_set(opts, "host", host);
|
| 2413 |
qemu_opt_set(opts, "port", port);
|
| 2414 |
if (p[pos] == ',') { |
| 2415 |
if (qemu_opts_do_parse(opts, p+pos+1, NULL) != 0) |
| 2416 |
goto fail;
|
| 2417 |
} |
| 2418 |
if (strstart(filename, "telnet:", &p)) |
| 2419 |
qemu_opt_set(opts, "telnet", "on"); |
| 2420 |
return opts;
|
| 2421 |
} |
| 2422 |
if (strstart(filename, "udp:", &p)) { |
| 2423 |
qemu_opt_set(opts, "backend", "udp"); |
| 2424 |
if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) { |
| 2425 |
host[0] = 0; |
| 2426 |
if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) { |
| 2427 |
goto fail;
|
| 2428 |
} |
| 2429 |
} |
| 2430 |
qemu_opt_set(opts, "host", host);
|
| 2431 |
qemu_opt_set(opts, "port", port);
|
| 2432 |
if (p[pos] == '@') { |
| 2433 |
p += pos + 1;
|
| 2434 |
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
| 2435 |
host[0] = 0; |
| 2436 |
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) { |
| 2437 |
goto fail;
|
| 2438 |
} |
| 2439 |
} |
| 2440 |
qemu_opt_set(opts, "localaddr", host);
|
| 2441 |
qemu_opt_set(opts, "localport", port);
|
| 2442 |
} |
| 2443 |
return opts;
|
| 2444 |
} |
| 2445 |
if (strstart(filename, "unix:", &p)) { |
| 2446 |
qemu_opt_set(opts, "backend", "socket"); |
| 2447 |
if (qemu_opts_do_parse(opts, p, "path") != 0) |
| 2448 |
goto fail;
|
| 2449 |
return opts;
|
| 2450 |
} |
| 2451 |
if (strstart(filename, "/dev/parport", NULL) || |
| 2452 |
strstart(filename, "/dev/ppi", NULL)) { |
| 2453 |
qemu_opt_set(opts, "backend", "parport"); |
| 2454 |
qemu_opt_set(opts, "path", filename);
|
| 2455 |
return opts;
|
| 2456 |
} |
| 2457 |
if (strstart(filename, "/dev/", NULL)) { |
| 2458 |
qemu_opt_set(opts, "backend", "tty"); |
| 2459 |
qemu_opt_set(opts, "path", filename);
|
| 2460 |
return opts;
|
| 2461 |
} |
| 2462 |
|
| 2463 |
fail:
|
| 2464 |
qemu_opts_del(opts); |
| 2465 |
return NULL; |
| 2466 |
} |
| 2467 |
|
| 2468 |
static const struct { |
| 2469 |
const char *name; |
| 2470 |
CharDriverState *(*open)(QemuOpts *opts); |
| 2471 |
} backend_table[] = {
|
| 2472 |
{ .name = "null", .open = qemu_chr_open_null },
|
| 2473 |
{ .name = "socket", .open = qemu_chr_open_socket },
|
| 2474 |
{ .name = "udp", .open = qemu_chr_open_udp },
|
| 2475 |
{ .name = "msmouse", .open = qemu_chr_open_msmouse },
|
| 2476 |
{ .name = "vc", .open = text_console_init },
|
| 2477 |
#ifdef _WIN32
|
| 2478 |
{ .name = "file", .open = qemu_chr_open_win_file_out },
|
| 2479 |
{ .name = "pipe", .open = qemu_chr_open_win_pipe },
|
| 2480 |
{ .name = "console", .open = qemu_chr_open_win_con },
|
| 2481 |
{ .name = "serial", .open = qemu_chr_open_win },
|
| 2482 |
#else
|
| 2483 |
{ .name = "file", .open = qemu_chr_open_file_out },
|
| 2484 |
{ .name = "pipe", .open = qemu_chr_open_pipe },
|
| 2485 |
{ .name = "pty", .open = qemu_chr_open_pty },
|
| 2486 |
{ .name = "stdio", .open = qemu_chr_open_stdio },
|
| 2487 |
#endif
|
| 2488 |
#ifdef CONFIG_BRLAPI
|
| 2489 |
{ .name = "braille", .open = chr_baum_init },
|
| 2490 |
#endif
|
| 2491 |
#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
|
| 2492 |
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ |
| 2493 |
|| defined(__FreeBSD_kernel__) |
| 2494 |
{ .name = "tty", .open = qemu_chr_open_tty },
|
| 2495 |
#endif
|
| 2496 |
#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
|
| 2497 |
|| defined(__FreeBSD_kernel__) |
| 2498 |
{ .name = "parport", .open = qemu_chr_open_pp },
|
| 2499 |
#endif
|
| 2500 |
#ifdef CONFIG_SPICE
|
| 2501 |
{ .name = "spicevmc", .open = qemu_chr_open_spice },
|
| 2502 |
#endif
|
| 2503 |
}; |
| 2504 |
|
| 2505 |
CharDriverState *qemu_chr_open_opts(QemuOpts *opts, |
| 2506 |
void (*init)(struct CharDriverState *s)) |
| 2507 |
{
|
| 2508 |
CharDriverState *chr; |
| 2509 |
int i;
|
| 2510 |
|
| 2511 |
if (qemu_opts_id(opts) == NULL) { |
| 2512 |
fprintf(stderr, "chardev: no id specified\n");
|
| 2513 |
return NULL; |
| 2514 |
} |
| 2515 |
|
| 2516 |
if (qemu_opt_get(opts, "backend") == NULL) { |
| 2517 |
fprintf(stderr, "chardev: \"%s\" missing backend\n",
|
| 2518 |
qemu_opts_id(opts)); |
| 2519 |
return NULL; |
| 2520 |
} |
| 2521 |
for (i = 0; i < ARRAY_SIZE(backend_table); i++) { |
| 2522 |
if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0) |
| 2523 |
break;
|
| 2524 |
} |
| 2525 |
if (i == ARRAY_SIZE(backend_table)) {
|
| 2526 |
fprintf(stderr, "chardev: backend \"%s\" not found\n",
|
| 2527 |
qemu_opt_get(opts, "backend"));
|
| 2528 |
return NULL; |
| 2529 |
} |
| 2530 |
|
| 2531 |
chr = backend_table[i].open(opts); |
| 2532 |
if (!chr) {
|
| 2533 |
fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
|
| 2534 |
qemu_opt_get(opts, "backend"));
|
| 2535 |
return NULL; |
| 2536 |
} |
| 2537 |
|
| 2538 |
if (!chr->filename)
|
| 2539 |
chr->filename = qemu_strdup(qemu_opt_get(opts, "backend"));
|
| 2540 |
chr->init = init; |
| 2541 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
| 2542 |
|
| 2543 |
if (qemu_opt_get_bool(opts, "mux", 0)) { |
| 2544 |
CharDriverState *base = chr; |
| 2545 |
int len = strlen(qemu_opts_id(opts)) + 6; |
| 2546 |
base->label = qemu_malloc(len); |
| 2547 |
snprintf(base->label, len, "%s-base", qemu_opts_id(opts));
|
| 2548 |
chr = qemu_chr_open_mux(base); |
| 2549 |
chr->filename = base->filename; |
| 2550 |
chr->avail_connections = MAX_MUX; |
| 2551 |
QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
| 2552 |
} else {
|
| 2553 |
chr->avail_connections = 1;
|
| 2554 |
} |
| 2555 |
chr->label = qemu_strdup(qemu_opts_id(opts)); |
| 2556 |
return chr;
|
| 2557 |
} |
| 2558 |
|
| 2559 |
CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) |
| 2560 |
{
|
| 2561 |
const char *p; |
| 2562 |
CharDriverState *chr; |
| 2563 |
QemuOpts *opts; |
| 2564 |
|
| 2565 |
if (strstart(filename, "chardev:", &p)) { |
| 2566 |
return qemu_chr_find(p);
|
| 2567 |
} |
| 2568 |
|
| 2569 |
opts = qemu_chr_parse_compat(label, filename); |
| 2570 |
if (!opts)
|
| 2571 |
return NULL; |
| 2572 |
|
| 2573 |
chr = qemu_chr_open_opts(opts, init); |
| 2574 |
if (chr && qemu_opt_get_bool(opts, "mux", 0)) { |
| 2575 |
monitor_init(chr, MONITOR_USE_READLINE); |
| 2576 |
} |
| 2577 |
qemu_opts_del(opts); |
| 2578 |
return chr;
|
| 2579 |
} |
| 2580 |
|
| 2581 |
void qemu_chr_set_echo(struct CharDriverState *chr, bool echo) |
| 2582 |
{
|
| 2583 |
if (chr->chr_set_echo) {
|
| 2584 |
chr->chr_set_echo(chr, echo); |
| 2585 |
} |
| 2586 |
} |
| 2587 |
|
| 2588 |
void qemu_chr_guest_open(struct CharDriverState *chr) |
| 2589 |
{
|
| 2590 |
if (chr->chr_guest_open) {
|
| 2591 |
chr->chr_guest_open(chr); |
| 2592 |
} |
| 2593 |
} |
| 2594 |
|
| 2595 |
void qemu_chr_guest_close(struct CharDriverState *chr) |
| 2596 |
{
|
| 2597 |
if (chr->chr_guest_close) {
|
| 2598 |
chr->chr_guest_close(chr); |
| 2599 |
} |
| 2600 |
} |
| 2601 |
|
| 2602 |
void qemu_chr_close(CharDriverState *chr)
|
| 2603 |
{
|
| 2604 |
QTAILQ_REMOVE(&chardevs, chr, next); |
| 2605 |
if (chr->chr_close)
|
| 2606 |
chr->chr_close(chr); |
| 2607 |
qemu_free(chr->filename); |
| 2608 |
qemu_free(chr->label); |
| 2609 |
qemu_free(chr); |
| 2610 |
} |
| 2611 |
|
| 2612 |
static void qemu_chr_qlist_iter(QObject *obj, void *opaque) |
| 2613 |
{
|
| 2614 |
QDict *chr_dict; |
| 2615 |
Monitor *mon = opaque; |
| 2616 |
|
| 2617 |
chr_dict = qobject_to_qdict(obj); |
| 2618 |
monitor_printf(mon, "%s: filename=%s\n", qdict_get_str(chr_dict, "label"), |
| 2619 |
qdict_get_str(chr_dict, "filename"));
|
| 2620 |
} |
| 2621 |
|
| 2622 |
void qemu_chr_info_print(Monitor *mon, const QObject *ret_data) |
| 2623 |
{
|
| 2624 |
qlist_iter(qobject_to_qlist(ret_data), qemu_chr_qlist_iter, mon); |
| 2625 |
} |
| 2626 |
|
| 2627 |
void qemu_chr_info(Monitor *mon, QObject **ret_data)
|
| 2628 |
{
|
| 2629 |
QList *chr_list; |
| 2630 |
CharDriverState *chr; |
| 2631 |
|
| 2632 |
chr_list = qlist_new(); |
| 2633 |
|
| 2634 |
QTAILQ_FOREACH(chr, &chardevs, next) {
|
| 2635 |
QObject *obj = qobject_from_jsonf("{ 'label': %s, 'filename': %s }",
|
| 2636 |
chr->label, chr->filename); |
| 2637 |
qlist_append_obj(chr_list, obj); |
| 2638 |
} |
| 2639 |
|
| 2640 |
*ret_data = QOBJECT(chr_list); |
| 2641 |
} |
| 2642 |
|
| 2643 |
CharDriverState *qemu_chr_find(const char *name) |
| 2644 |
{
|
| 2645 |
CharDriverState *chr; |
| 2646 |
|
| 2647 |
QTAILQ_FOREACH(chr, &chardevs, next) {
|
| 2648 |
if (strcmp(chr->label, name) != 0) |
| 2649 |
continue;
|
| 2650 |
return chr;
|
| 2651 |
} |
| 2652 |
return NULL; |
| 2653 |
} |