drivers/tty/vt/vt_ioctl.c:411:23: sparse: sparse: incorrect type in initializer (different address spaces)

From: kernel test robot
Date: Sat Jul 25 2020 - 04:48:31 EST

tree: .config.gzDescription: application/gzip Qinglang Miao: "[PATCH -next] cifs: convert to use be32_add_cpu()" Sakari Ailus: "Re: [PATCH v10 2/4] media: i2c: Add MAX9286 driver" date ] [ thread ] [ subject ] [ author ] /pub/scm/linux/kernel/git/torvalds/linux.git">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
sparse: use identifiers to define address spaces
as .config)
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tree
make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=openrisc
as appropriate
> sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char *__pu_addr @@ got char [noderef] __user * @@
expected char *__pu_addr
got char [noderef] __user *
sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] __user * @@
expected int *__pu_addr
got int [noderef] __user *
incorrect type in initializer (different address spaces) @@ expected int *__pu_addr @@ got int [noderef] __user * @@
expected int *__pu_addr
got int [noderef] __user *
sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned short *__pu_addr @@ got unsigned short [noderef] __user * @@
expected unsigned short *__pu_addr
got unsigned short [noderef] __user *
incorrect type in initializer (different address spaces) @@ expected unsigned short *__pu_addr @@ got unsigned short [noderef] __user * @@
expected unsigned short *__pu_addr
got unsigned short [noderef] __user *
sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned short const *__gu_addr @@ got unsigned short [noderef] __user * @@
expected unsigned short const *__gu_addr
got unsigned short [noderef] __user *
incorrect type in initializer (different address spaces) @@ expected unsigned short const *__gu_addr @@ got unsigned short [noderef] __user * @@
expected unsigned short const *__gu_addr
got unsigned short [noderef] __user *
sparse: incorrect type in initializer (different address spaces) @@ expected unsigned short *__pu_addr @@ got unsigned short [noderef] __user * @@
expected unsigned short *__pu_addr
got unsigned short [noderef] __user *
file (through include/linux/sched/task.h, include/linux/sched/signal.h):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
file (through include/linux/sched/task.h, include/linux/sched/signal.h):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
file (through include/linux/sched/task.h, include/linux/sched/signal.h):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
file (through include/linux/sched/task.h, include/linux/sched/signal.h):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
file (through include/linux/sched/task.h, include/linux/sched/signal.h):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int *__pu_addr @@ got unsigned int [noderef] __user * @@
expected unsigned int *__pu_addr
got unsigned int [noderef] __user *
sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int *__pu_addr @@ got unsigned int [noderef] __user * @@
expected unsigned int *__pu_addr
got unsigned int [noderef] __user *
sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int const *__gu_addr @@ got unsigned int [noderef] __user * @@
expected unsigned int const *__gu_addr
got unsigned int [noderef] __user *
sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int const *__gu_addr @@ got unsigned int [noderef] __user * @@
expected unsigned int const *__gu_addr
got unsigned int [noderef] __user *
sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int *__pu_addr @@ got unsigned int [noderef] __user * @@
expected unsigned int *__pu_addr
got unsigned int [noderef] __user *
sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned short *__pu_addr @@ got unsigned short [noderef] __user * @@
expected unsigned short *__pu_addr
got unsigned short [noderef] __user *
sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned char *__pu_addr @@ got unsigned char [noderef] [usertype] __user * @@
expected unsigned char *__pu_addr
got unsigned char [noderef] [usertype] __user *
sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned char *__pu_addr @@ got unsigned char [noderef] [usertype] __user *[assigned] up @@
expected unsigned char *__pu_addr
got unsigned char [noderef] [usertype] __user *[assigned] up
sparse: sparse: incorrect type in initializer (different address spaces) @@ expected char *__pu_addr @@ got char [noderef] __user * @@
expected char *__pu_addr
got char [noderef] __user *
sparse: incorrect type in initializer (different address spaces) @@ expected char *__pu_addr @@ got char [noderef] __user * @@
expected char *__pu_addr
got char [noderef] __user *
file (through include/linux/sched/task.h, include/linux/sched/signal.h):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
file (through include/linux/sched/task.h, include/linux/sched/signal.h):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned short *__pu_addr @@ got unsigned short [noderef] [usertype] __user *uct @@
expected unsigned short *__pu_addr
got unsigned short [noderef] [usertype] __user *uct
file (through include/linux/sched/task.h, include/linux/sched/signal.h, include/linux/rcuwait.h, ...):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
file (through include/linux/sched/task.h, include/linux/sched/signal.h, include/linux/rcuwait.h, ...):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
file (through include/linux/sched/task.h, include/linux/sched/signal.h, include/linux/rcuwait.h, ...):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
sparse: incorrect type in initializer (different address spaces) @@ expected char const *__gu_addr @@ got char [noderef] __user * @@
char const *__gu_addr
got char [noderef] __user *
symbol 'console_blank_hook' was not declared. Should it be static?
symbol 'console_driver' was not declared. Should it be static?
sparse: incorrect type in initializer (different address spaces) @@ expected char const *__gu_addr @@ got char [noderef] __user *p @@
char const *__gu_addr
got char [noderef] __user *p
sparse: incorrect type in initializer (different address spaces) @@ expected char *__pu_addr @@ got char [noderef] __user *p @@
char *__pu_addr
char [noderef] __user *p
incorrect type in initializer (different address spaces) @@ expected char *__pu_addr @@ got char [noderef] __user *p @@
char *__pu_addr
char [noderef] __user *p
incorrect type in initializer (different address spaces) @@ expected char *__pu_addr @@ got char [noderef] __user *p @@
char *__pu_addr
char [noderef] __user *p
incorrect type in initializer (different address spaces) @@ expected char const *__gu_addr @@ got char [noderef] __user * @@
char const *__gu_addr
char [noderef] __user *
sparse: incorrect type in initializer (different address spaces) @@ expected signed int const *__gu_addr @@ got signed int [noderef] [usertype] __user * @@
signed int const *__gu_addr
got signed int [noderef] [usertype] __user *
(through include/asm-generic/atomic.h, arch/openrisc/include/asm/atomic.h, include/linux/atomic.h, ...):
sparse: sparse: shift too big (32) for type int
sparse: sparse: shift too big (32) for type int
(through include/linux/sched/task.h, include/linux/sched/signal.h):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
(through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
(through include/linux/sched/task.h, include/linux/sched/signal.h):
incorrect type in argument 1 (different address spaces) @@ expected void *to @@ got void [noderef] __user *to @@
expected void *to
got void [noderef] __user *to
incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] __user *from @@ got void const *from @@
expected void const [noderef] __user *from
got void const *from
(through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h):
sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const *from @@ got void const [noderef] __user *from @@
expected void const *from
got void const [noderef] __user *from
2009-09-19 344
2009-09-19 345
2005-04-16 346 /*
2005-04-16 347 * We handle the console-specific ioctl's here. We allow the
2005-04-16 348 * capability to modify any console, not just the fg_console.
2005-04-16 349 */
2011-02-14 350 int vt_ioctl(struct tty_struct *tty,
2005-04-16 351 unsigned int cmd, unsigned long arg)
2005-04-16 352 {
2009-01-02 353 struct vc_data *vc = tty->driver_data;
2005-04-16 354 struct console_font_op op; /* used in multiple places here */
2020-02-24 355 unsigned int console = vc->vc_num;
2005-04-16 356 unsigned char ucval;
2010-10-27 357 unsigned int uival;
2005-04-16 358 void __user *up = (void __user *)arg;
2005-04-16 359 int i, perm;
2008-04-30 360 int ret = 0;
2005-04-16 361
2005-04-16 362 /*
2005-04-16 363 * To have permissions to do most of the vt ioctls, we either have
2005-04-16 364 * to be the owner of the tty, or have CAP_SYS_TTY_CONFIG.
2005-04-16 365 */
2005-04-16 366 perm = 0;
2005-04-16 367 if (current->signal->tty == tty || capable(CAP_SYS_TTY_CONFIG))
2005-04-16 368 perm = 1;
2005-04-16 369
2005-04-16 370 switch (cmd) {
2008-10-13 371 case TIOCLINUX:
2009-06-22 372 ret = tioclinux(tty, arg);
2009-06-22 373 break;
2005-04-16 374 case KIOCSOUND:
2005-04-16 375 if (!perm)
2012-03-02 376 return -EPERM;
2010-08-28 377 /*
2010-08-28 378 * The use of PIT_TICK_RATE is historic, it used to be
2010-08-28 379 * the platform-dependent CLOCK_TICK_RATE between 2.6.12
2010-08-28 380 * and 2.6.36, which was a minor but unfortunate ABI
2012-03-02 381 * change. kd_mksound is locked by the input layer.
2010-08-28 382 */
2005-04-16 383 if (arg)
2010-08-28 384 arg = PIT_TICK_RATE / arg;
2005-04-16 385 kd_mksound(arg, 0);
2008-04-30 386 break;
2005-04-16 387
2005-04-16 388 case KDMKTONE:
2005-04-16 389 if (!perm)
2012-03-02 390 return -EPERM;
2005-04-16 391 {
2005-04-16 392 unsigned int ticks, count;
2005-04-16 393
2005-04-16 394 /*
2005-04-16 395 * Generate the tone for the appropriate number of ticks.
2005-04-16 396 * If the time is zero, turn off sound ourselves.
2005-04-16 397 */
2015-02-09 398 ticks = msecs_to_jiffies((arg >> 16) & 0xffff);
2005-04-16 399 count = ticks ? (arg & 0xffff) : 0;
2005-04-16 400 if (count)
2010-08-28 401 count = PIT_TICK_RATE / count;
2005-04-16 402 kd_mksound(count, ticks);
2008-04-30 403 break;
2005-04-16 404 }
2005-04-16 405
2005-04-16 406 case KDGKBTYPE:
2005-04-16 407 /*
2012-03-02 408 * this is naïve.
2005-04-16 409 */
2005-04-16 410 ucval = KB_101;
2012-02-28 @411 ret = put_user(ucval, (char __user *)arg);
2012-02-28 412 break;
2005-04-16 413
2005-04-16 414 /*
2005-04-16 415 * These cannot be implemented on any machine that implements
2005-04-16 416 * ioperm() in user level (such as Alpha PCs) or not at all.
2005-04-16 417 *
2005-04-16 418 * XXX: you should never use these, just call ioperm directly..
2005-04-16 419 */
2005-04-16 420 #ifdef CONFIG_X86
2005-04-16 421 case KDADDIO:
2005-04-16 422 case KDDELIO:
2005-04-16 423 /*
2005-04-16 424 * KDADDIO and KDDELIO may be able to add ports beyond what
2005-04-16 425 * we reject here, but to be safe...
2012-03-02 426 *
2012-03-02 427 * These are locked internally via sys_ioperm
2005-04-16 428 */
2008-04-30 429 if (arg < GPFIRST || arg > GPLAST) {
2008-04-30 430 ret = -EINVAL;
2008-04-30 431 break;
2008-04-30 432 }
2018-03-11 433 ret = ksys_ioperm(arg, 1, (cmd == KDADDIO)) ? -ENXIO : 0;
2008-04-30 434 break;
2005-04-16 435
2005-04-16 436 case KDENABIO:
2005-04-16 437 case KDDISABIO:
2018-03-11 438 ret = ksys_ioperm(GPFIRST, GPNUM,
2005-04-16 439 (cmd == KDENABIO)) ? -ENXIO : 0;
2008-04-30 440 break;
2005-04-16 441 #endif
2005-04-16 442
2005-04-16 443 /* Linux m68k/i386 interface for setting the keyboard delay/repeat rate */
2005-04-16 444
2005-04-16 445 case KDKBDREP:
2005-04-16 446 {
2005-04-16 447 struct kbd_repeat kbrep;
2005-04-16 448
2005-04-16 449 if (!capable(CAP_SYS_TTY_CONFIG))
2012-03-02 450 return -EPERM;
2005-04-16 451
2008-04-30 452 if (copy_from_user(&kbrep, up, sizeof(struct kbd_repeat))) {
2008-04-30 453 ret = -EFAULT;
2008-04-30 454 break;
2008-04-30 455 }
2008-04-30 456 ret = kbd_rate(&kbrep);
2008-04-30 457 if (ret)
2008-04-30 458 break;
2005-04-16 459 if (copy_to_user(up, &kbrep, sizeof(struct kbd_repeat)))
2008-04-30 460 ret = -EFAULT;
2008-04-30 461 break;
2005-04-16 462 }
2005-04-16 463
2005-04-16 464 case KDSETMODE:
2005-04-16 465 /*
2005-04-16 466 * currently, setting the mode from KD_TEXT to KD_GRAPHICS
2005-04-16 467 * doesn't do a whole lot. i'm not sure if it should do any
2005-04-16 468 * restoration of modes or what...
2005-04-16 469 *
2005-04-16 470 * XXX It should at least call into the driver, fbdev's definitely
2005-04-16 471 * need to restore their engine state. --BenH
2005-04-16 472 */
2005-04-16 473 if (!perm)
2012-03-02 474 return -EPERM;
2005-04-16 475 switch (arg) {
2005-04-16 476 case KD_GRAPHICS:
2005-04-16 477 break;
2005-04-16 478 case KD_TEXT0:
2005-04-16 479 case KD_TEXT1:
2005-04-16 480 arg = KD_TEXT;
2005-04-16 481 case KD_TEXT:
2005-04-16 482 break;
2005-04-16 483 default:
2008-04-30 484 ret = -EINVAL;
2008-04-30 485 goto out;
2005-04-16 486 }
2012-03-02 487 /* FIXME: this needs the console lock extending */
2005-04-16 488 if (vc->vc_mode == (unsigned char) arg)
2008-04-30 489 break;
2005-04-16 490 vc->vc_mode = (unsigned char) arg;
2005-04-16 491 if (console != fg_console)
2008-04-30 492 break;
2005-04-16 493 /*
2005-04-16 494 * explicitly blank/unblank the screen if switching modes
2005-04-16 495 */
2011-01-25 496 console_lock();
2005-04-16 497 if (arg == KD_TEXT)
2005-04-16 498 do_unblank_screen(1);
2005-04-16 499 else
2005-04-16 500 do_blank_screen(1);
2011-01-25 501 console_unlock();
2008-04-30 502 break;
2005-04-16 503
2005-04-16 504 case KDGETMODE:
2010-10-27 505 uival = vc->vc_mode;
2005-04-16 506 goto setint;
2005-04-16 507
2005-04-16 508 case KDMAPDISP:
2005-04-16 509 case KDUNMAPDISP:
2005-04-16 510 /*
2005-04-16 511 * these work like a combination of mmap and KDENABIO.
2005-04-16 512 * this could be easily finished.
2005-04-16 513 */
2008-04-30 514 ret = -EINVAL;
2008-04-30 515 break;
2005-04-16 516
2005-04-16 517 case KDSKBMODE:
2005-04-16 518 if (!perm)
2012-03-02 519 return -EPERM;
2012-02-28 520 ret = vt_do_kdskbmode(console, arg);
2012-02-28 521 if (ret == 0)
2005-04-16 522 tty_ldisc_flush(tty);
2008-04-30 523 break;
2005-04-16 524
2005-04-16 525 case KDGKBMODE:
2012-02-28 526 uival = vt_do_kdgkbmode(console);
2012-02-28 @527 ret = put_user(uival, (int __user *)arg);
2011-04-07 528 break;
2005-04-16 529
2005-04-16 530 /* this could be folded into KDSKBMODE, but for compatibility
2005-04-16 531 reasons it is not so easy to fold KDGKBMETA into KDGKBMODE */
2005-04-16 532 case KDSKBMETA:
2012-02-28 533 ret = vt_do_kdskbmeta(console, arg);
2008-04-30 534 break;
2005-04-16 535
2005-04-16 536 case KDGKBMETA:
2012-02-28 537 /* FIXME: should review whether this is worth locking */
2012-02-28 538 uival = vt_do_kdgkbmeta(console);
2005-04-16 539 setint:
2010-10-27 540 ret = put_user(uival, (int __user *)arg);
2008-04-30 541 break;
2005-04-16 542
2005-04-16 543 case KDGETKEYCODE:
2005-04-16 544 case KDSETKEYCODE:
2005-04-16 545 if(!capable(CAP_SYS_TTY_CONFIG))
2005-04-16 546 perm = 0;
2012-02-28 547 ret = vt_do_kbkeycode_ioctl(cmd, up, perm);
2008-04-30 548 break;
2005-04-16 549
2005-04-16 550 case KDGKBENT:
2005-04-16 551 case KDSKBENT:
2012-02-28 552 ret = vt_do_kdsk_ioctl(cmd, up, perm, console);
2008-04-30 553 break;
2005-04-16 554
2005-04-16 555 case KDGKBSENT:
2005-04-16 556 case KDSKBSENT:
2012-02-28 557 ret = vt_do_kdgkb_ioctl(cmd, up, perm);
2008-04-30 558 break;
2005-04-16 559
2012-02-24 560 /* Diacritical processing. Handled in keyboard.c as it has
2012-02-24 561 to operate on the keyboard locks and structures */
2005-04-16 562 case KDGKBDIACR:
2007-10-16 563 case KDGKBDIACRUC:
2005-04-16 564 case KDSKBDIACR:
2007-10-16 565 case KDSKBDIACRUC:
2012-02-24 566 ret = vt_do_diacrit(cmd, up, perm);
2008-04-30 567 break;
2005-04-16 568
2005-04-16 569 /* the ioctls below read/set the flags usually shown in the leds */
2005-04-16 570 /* don't use them - they will go away without warning */
2005-04-16 571 case KDGKBLED:
2005-04-16 572 case KDSKBLED:
2005-04-16 573 case KDGETLED:
2005-04-16 574 case KDSETLED:
2012-02-28 575 ret = vt_do_kdskled(console, cmd, arg, perm);
2008-04-30 576 break;
2005-04-16 577
2005-04-16 578 /*
2005-04-16 579 * A process can indicate its willingness to accept signals
2005-04-16 580 * generated by pressing an appropriate key combination.
2005-04-16 581 * Thus, one can have a daemon that e.g. spawns a new console
2005-04-16 582 * upon a keypress and then changes to it.
2005-04-16 583 * See also the kbrequest field of inittab(5).
2005-04-16 584 */
2005-04-16 585 case KDSIGACCEPT:
2005-04-16 586 {
2005-04-16 587 if (!perm || !capable(CAP_KILL))
2012-03-02 588 return -EPERM;
2005-05-01 589 if (!valid_signal(arg) || arg < 1 || arg == SIGKILL)
2008-04-30 590 ret = -EINVAL;
2008-04-30 591 else {
2006-10-02 592 spin_lock_irq(&vt_spawn_con.lock);
2006-10-02 593 put_pid(vt_spawn_con.pid);
2006-10-02 594 vt_spawn_con.pid = get_pid(task_pid(current));
2006-10-02 595 vt_spawn_con.sig = arg;
2006-10-02 596 spin_unlock_irq(&vt_spawn_con.lock);
2008-04-30 597 }
2008-04-30 598 break;
2005-04-16 599 }
2005-04-16 600
2005-04-16 601 case VT_SETMODE:
2005-04-16 602 {
2005-04-16 603 struct vt_mode tmp;
2005-04-16 604
2005-04-16 605 if (!perm)
2012-03-02 606 return -EPERM;
2008-04-30 607 if (copy_from_user(&tmp, up, sizeof(struct vt_mode))) {
2008-04-30 608 ret = -EFAULT;
2008-04-30 609 goto out;
2008-04-30 610 }
2010-03-15 611 if (tmp.mode != VT_AUTO && tmp.mode != VT_PROCESS) {
2008-04-30 612 ret = -EINVAL;
2008-04-30 613 goto out;
2008-04-30 614 }
2011-01-25 615 console_lock();
2005-04-16 616 vc->vt_mode = tmp;
2005-04-16 617 /* the frsig is ignored, so we set it to 0 */
2005-04-16 618 vc->vt_mode.frsig = 0;
2007-02-10 619 put_pid(vc->vt_pid);
2007-02-10 620 vc->vt_pid = get_pid(task_pid(current));
2005-04-16 621 /* no switch is required -- saw@xxxxxxxxxxxx */
2005-04-16 622 vc->vt_newvt = -1;
2011-01-25 623 console_unlock();
2008-04-30 624 break;
2005-04-16 625 }
2005-04-16 626
2005-04-16 627 case VT_GETMODE:
2005-04-16 628 {
2005-04-16 629 struct vt_mode tmp;
2005-04-16 630 int rc;
2005-04-16 631
2011-01-25 632 console_lock();
2005-04-16 633 memcpy(&tmp, &vc->vt_mode, sizeof(struct vt_mode));
2011-01-25 634 console_unlock();
2005-04-16 635
2005-04-16 636 rc = copy_to_user(up, &tmp, sizeof(struct vt_mode));
2008-04-30 637 if (rc)
2008-04-30 638 ret = -EFAULT;
2008-04-30 639 break;
2005-04-16 640 }
2005-04-16 641
2005-04-16 642 /*
2005-04-16 643 * Returns global vt state. Note that VT 0 is always open, since
2005-04-16 644 * it's an alias for the current VT, and people can't use it here.
2005-04-16 645 * We cannot return state for more than 16 VTs, since v_state is short.
2005-04-16 646 */
2005-04-16 647 case VT_GETSTATE:
2005-04-16 648 {
2005-04-16 649 struct vt_stat __user *vtstat = up;
2005-04-16 650 unsigned short state, mask;
2005-04-16 651
2005-04-16 652 if (put_user(fg_console + 1, &vtstat->v_active))
2008-04-30 653 ret = -EFAULT;
2008-04-30 654 else {
2005-04-16 655 state = 1; /* /dev/tty0 is always open */
2020-03-21 656 console_lock(); /* required by vt_in_use() */
2008-04-30 657 for (i = 0, mask = 2; i < MAX_NR_CONSOLES && mask;
2008-04-30 658 ++i, mask <<= 1)
2020-02-19 659 if (vt_in_use(i))
2005-04-16 660 state |= mask;
2020-03-21 661 console_unlock();
2008-04-30 662 ret = put_user(state, &vtstat->v_state);
2008-04-30 663 }
2008-04-30 664 break;
2005-04-16 665 }
2005-04-16 666
2005-04-16 667 /*
2005-04-16 668 * Returns the first available (non-opened) console.
2005-04-16 669 */
2005-04-16 670 case VT_OPENQRY:
2020-03-21 671 console_lock(); /* required by vt_in_use() */
2005-04-16 672 for (i = 0; i < MAX_NR_CONSOLES; ++i)
2020-02-19 673 if (!vt_in_use(i))
2005-04-16 674 break;
2020-03-21 675 console_unlock();
2010-10-27 676 uival = i < MAX_NR_CONSOLES ? (i+1) : -1;
2005-04-16 677 goto setint;
2005-04-16 678
2005-04-16 679 /*
2005-04-16 680 * ioctl(fd, VT_ACTIVATE, num) will cause us to switch to vt # num,
2005-04-16 681 * with num >= 1 (switches to vt 0, our console, are not allowed, just
2005-04-16 682 * to preserve sanity).
2005-04-16 683 */
2005-04-16 684 case VT_ACTIVATE:
2005-04-16 685 if (!perm)
2012-03-02 686 return -EPERM;
2005-04-16 687 if (arg == 0 || arg > MAX_NR_CONSOLES)
2008-04-30 688 ret = -ENXIO;
2008-04-30 689 else {
2005-04-16 690 arg--;
2011-01-25 691 console_lock();
2008-04-30 692 ret = vc_allocate(arg);
2011-01-25 693 console_unlock();
2008-04-30 694 if (ret)
2008-04-30 695 break;
2005-04-16 696 set_console(arg);
2008-04-30 697 }
2008-04-30 698 break;
2005-04-16 699
2009-09-19 700 case VT_SETACTIVATE:
2009-09-19 701 {
2009-09-19 702 struct vt_setactivate vsa;
2009-09-19 703
2009-09-19 704 if (!perm)
2012-03-02 705 return -EPERM;
2009-09-19 706
2009-09-19 707 if (copy_from_user(&vsa, (struct vt_setactivate __user *)arg,
2009-10-01 708 sizeof(struct vt_setactivate))) {
2009-10-01 709 ret = -EFAULT;
2009-10-01 710 goto out;
2009-10-01 711 }
2009-09-19 712 if (vsa.console == 0 || vsa.console > MAX_NR_CONSOLES)
2009-09-19 713 ret = -ENXIO;
2009-09-19 714 else {
A. R. Silva 2018-08-16 715 vsa.console = array_index_nospec(vsa.console,
A. R. Silva 2018-08-16 716 MAX_NR_CONSOLES + 1);
2009-09-19 717 vsa.console--;
2011-01-25 718 console_lock();
2009-09-19 719 ret = vc_allocate(vsa.console);
2009-09-19 720 if (ret == 0) {
2009-09-19 721 struct vc_data *nvc;
2009-09-19 722 /* This is safe providing we don't drop the
2009-09-19 723 console sem between vc_allocate and
2009-09-19 724 finishing referencing nvc */
2009-09-19 725 nvc = vc_cons[vsa.console].d;
2009-09-19 726 nvc->vt_mode = vsa.mode;
2009-09-19 727 nvc->vt_mode.frsig = 0;
2009-09-19 728 put_pid(nvc->vt_pid);
2009-09-19 729 nvc->vt_pid = get_pid(task_pid(current));
2009-09-19 730 }
2011-01-25 731 console_unlock();
2009-09-19 732 if (ret)
2009-09-19 733 break;
2009-09-19 734 /* Commence switch and lock */
2012-03-02 735 /* Review set_console locks */
2011-02-11 736 set_console(vsa.console);
2009-09-19 737 }
2011-02-11 738 break;
2009-09-19 739 }
2009-09-19 740
2005-04-16 741 /*
2005-04-16 742 * wait until the specified VT has been activated
2005-04-16 743 */
2005-04-16 744 case VT_WAITACTIVE:
2005-04-16 745 if (!perm)
2012-03-02 746 return -EPERM;
2005-04-16 747 if (arg == 0 || arg > MAX_NR_CONSOLES)
2008-04-30 748 ret = -ENXIO;
2012-03-02 749 else
2009-09-19 750 ret = vt_waitactive(arg);
2008-04-30 751 break;
2005-04-16 752
2005-04-16 753 /*
2005-04-16 754 * If a vt is under process control, the kernel will not switch to it
2005-04-16 755 * immediately, but postpone the operation until the process calls this
2005-04-16 756 * ioctl, allowing the switch to complete.
2005-04-16 757 *
2005-04-16 758 * According to the X sources this is the behavior:
2005-04-16 759 * 0: pending switch-from not OK
2005-04-16 760 * 1: pending switch-from OK
2005-04-16 761 * 2: completed switch-to OK
2005-04-16 762 */
2005-04-16 763 case VT_RELDISP:
2005-04-16 764 if (!perm)
2012-03-02 765 return -EPERM;
2005-04-16 766
2012-03-02 767 console_lock();
2008-04-30 768 if (vc->vt_mode.mode != VT_PROCESS) {
2012-03-02 769 console_unlock();
2008-04-30 770 ret = -EINVAL;
2008-04-30 771 break;
2008-04-30 772 }
2005-04-16 773 /*
2005-04-16 774 * Switching-from response
2005-04-16 775 */
2005-04-16 776 if (vc->vt_newvt >= 0) {
2005-04-16 777 if (arg == 0)
2005-04-16 778 /*
2005-04-16 779 * Switch disallowed, so forget we were trying
2005-04-16 780 * to do it.
2005-04-16 781 */
2005-04-16 782 vc->vt_newvt = -1;
2005-04-16 783
2005-04-16 784 else {
2005-04-16 785 /*
2005-04-16 786 * The current vt has been released, so
2005-04-16 787 * complete the switch.
2005-04-16 788 */
2005-04-16 789 int newvt;
2005-04-16 790 newvt = vc->vt_newvt;
2005-04-16 791 vc->vt_newvt = -1;
2008-04-30 792 ret = vc_allocate(newvt);
2008-04-30 793 if (ret) {
2011-01-25 794 console_unlock();
2008-04-30 795 break;
2005-04-16 796 }
2005-04-16 797 /*
2005-04-16 798 * When we actually do the console switch,
2005-04-16 799 * make sure we are atomic with respect to
2005-04-16 800 * other console switches..
2005-04-16 801 */
2005-04-16 802 complete_change_console(vc_cons[newvt].d);
2005-04-16 803 }
2008-04-30 804 } else {
2005-04-16 805 /*
2005-04-16 806 * Switched-to response
2005-04-16 807 */
2005-04-16 808 /*
2005-04-16 809 * If it's just an ACK, ignore it
2005-04-16 810 */
2008-04-30 811 if (arg != VT_ACKACQ)
2008-04-30 812 ret = -EINVAL;
2007-10-01 813 }
2011-01-25 814 console_unlock();
2008-04-30 815 break;
2005-04-16 816
2005-04-16 817 /*
2005-04-16 818 * Disallocate memory associated to VT (but leave VT1)
2005-04-16 819 */
2005-04-16 820 case VT_DISALLOCATE:
2008-04-30 821 if (arg > MAX_NR_CONSOLES) {
2008-04-30 822 ret = -ENXIO;
2008-04-30 823 break;
2008-04-30 824 }
2013-05-17 825 if (arg == 0)
2013-05-17 826 vt_disallocate_all();
2013-05-17 827 else
2013-05-17 828 ret = vt_disallocate(--arg);
2008-04-30 829 break;
2005-04-16 830
2005-04-16 831 case VT_RESIZE:
2005-04-16 832 {
2005-04-16 833 struct vt_sizes __user *vtsizes = up;
2007-10-16 834 struct vc_data *vc;
2007-10-16 835
2005-04-16 836 ushort ll,cc;
2005-04-16 837 if (!perm)
2012-03-02 838 return -EPERM;
2005-04-16 839 if (get_user(ll, &vtsizes->v_rows) ||
2005-04-16 840 get_user(cc, &vtsizes->v_cols))
2008-04-30 841 ret = -EFAULT;
2008-04-30 842 else {
2011-01-25 843 console_lock();
2007-10-16 844 for (i = 0; i < MAX_NR_CONSOLES; i++) {
2007-10-16 845 vc = vc_cons[i].d;
2007-10-16 846
2007-10-16 847 if (vc) {
2007-10-16 848 vc->vc_resize_user = 1;
2012-03-02 849 /* FIXME: review v tty lock */
2008-08-15 850 vc_resize(vc_cons[i].d, cc, ll);
2007-10-16 851 }
2007-10-16 852 }
2011-01-25 853 console_unlock();
2008-04-30 854 }
2008-04-30 855 break;
2005-04-16 856 }
2005-04-16 857
2005-04-16 858 case VT_RESIZEX:
2005-04-16 859 {
2017-09-29 860 struct vt_consize v;
2005-04-16 861 if (!perm)
2012-03-02 862 return -EPERM;
2017-09-29 863 if (copy_from_user(&v, up, sizeof(struct vt_consize)))
2017-09-29 864 return -EFAULT;
2008-04-30 865 /* FIXME: Should check the copies properly */
2017-09-29 866 if (!v.v_vlin)
2017-09-29 867 v.v_vlin = vc->vc_scan_lines;
2017-09-29 868 if (v.v_clin) {
2017-09-29 869 int rows = v.v_vlin/v.v_clin;
2017-09-29 870 if (v.v_rows != rows) {
2017-09-29 871 if (v.v_rows) /* Parameters don't add up */
2017-09-29 872 return -EINVAL;
2017-09-29 873 v.v_rows = rows;
2008-04-30 874 }
2005-04-16 875 }
2017-09-29 876 if (v.v_vcol && v.v_ccol) {
2017-09-29 877 int cols = v.v_vcol/v.v_ccol;
2017-09-29 878 if (v.v_cols != cols) {
2017-09-29 879 if (v.v_cols)
2017-09-29 880 return -EINVAL;
2017-09-29 881 v.v_cols = cols;
2008-04-30 882 }
2005-04-16 883 }
2005-04-16 884
2017-09-29 885 if (v.v_clin > 32)
2017-09-29 886 return -EINVAL;
2005-04-16 887
2005-04-16 888 for (i = 0; i < MAX_NR_CONSOLES; i++) {
2020-02-10 889 struct vc_data *vcp;
2020-02-10 890
2005-04-16 891 if (!vc_cons[i].d)
2005-04-16 892 continue;
2011-01-25 893 console_lock();
2020-02-10 894 vcp = vc_cons[i].d;
2020-02-10 895 if (vcp) {
2017-09-29 896 if (v.v_vlin)
2020-02-10 897 vcp->vc_scan_lines = v.v_vlin;
2017-09-29 898 if (v.v_clin)
2020-02-10 899 vcp->vc_font.height = v.v_clin;
2020-02-10 900 vcp->vc_resize_user = 1;
2020-02-10 901 vc_resize(vcp, v.v_cols, v.v_rows);
2020-02-10 902 }
2011-01-25 903 console_unlock();
2005-04-16 904 }
2008-04-30 905 break;
2005-04-16 906 }
2005-04-16 907
2005-04-16 908 case PIO_FONT: {
2005-04-16 909 if (!perm)
2012-03-02 910 return -EPERM;
2005-04-16 911 op.op = KD_FONT_OP_SET;
2005-04-16 912 op.flags = KD_FONT_FLAG_OLD | KD_FONT_FLAG_DONT_RECALC; /* Compatibility */
2005-04-16 913 op.width = 8;
2005-04-16 914 op.height = 0;
2005-04-16 915 op.charcount = 256;
2005-04-16 916 op.data = up;
2008-04-30 917 ret = con_font_op(vc_cons[fg_console].d, &op);
2008-04-30 918 break;
2005-04-16 919 }
2005-04-16 920
2005-04-16 921 case GIO_FONT: {
2005-04-16 922 op.op = KD_FONT_OP_GET;
2005-04-16 923 op.flags = KD_FONT_FLAG_OLD;
2005-04-16 924 op.width = 8;
2005-04-16 925 op.height = 32;
2005-04-16 926 op.charcount = 256;
2005-04-16 927 op.data = up;
2008-04-30 928 ret = con_font_op(vc_cons[fg_console].d, &op);
2008-04-30 929 break;
2005-04-16 930 }
2005-04-16 931
2005-04-16 932 case PIO_CMAP:
2005-04-16 933 if (!perm)
2008-04-30 934 ret = -EPERM;
2008-04-30 935 else
2008-04-30 936 ret = con_set_cmap(up);
2008-04-30 937 break;
2005-04-16 938
2005-04-16 939 case GIO_CMAP:
2008-04-30 940 ret = con_get_cmap(up);
2008-04-30 941 break;
2005-04-16 942
2005-04-16 943 case PIO_FONTX:
2005-04-16 944 case GIO_FONTX:
2008-04-30 945 ret = do_fontx_ioctl(cmd, up, perm, &op);
2008-04-30 946 break;
2005-04-16 947
2005-04-16 948 case PIO_FONTRESET:
2005-04-16 949 {
2005-04-16 950 if (!perm)
2012-03-02 951 return -EPERM;
2005-04-16 952
by commit
vt:tackle kbd_table
xxxxx>
y/list/kbuild-all@xxxxxxxxxxxx">https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
rong>

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