tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel / fs / compat_ioctl.c
at v4.19-rc2 1466 lines 42 kB view raw
1// SPDX-License-Identifier: GPL-2.0 2/* 3 * ioctl32.c: Conversion between 32bit and 64bit native ioctls. 4 * 5 * Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com) 6 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) 7 * Copyright (C) 2001,2002 Andi Kleen, SuSE Labs 8 * Copyright (C) 2003 Pavel Machek (pavel@ucw.cz) 9 * 10 * These routines maintain argument size conversion between 32bit and 64bit 11 * ioctls. 12 */ 13 14#include <linux/joystick.h> 15 16#include <linux/types.h> 17#include <linux/compat.h> 18#include <linux/kernel.h> 19#include <linux/capability.h> 20#include <linux/compiler.h> 21#include <linux/sched.h> 22#include <linux/smp.h> 23#include <linux/ioctl.h> 24#include <linux/if.h> 25#include <linux/if_bridge.h> 26#include <linux/raid/md_u.h> 27#include <linux/kd.h> 28#include <linux/route.h> 29#include <linux/in6.h> 30#include <linux/ipv6_route.h> 31#include <linux/skbuff.h> 32#include <linux/netlink.h> 33#include <linux/vt.h> 34#include <linux/falloc.h> 35#include <linux/fs.h> 36#include <linux/file.h> 37#include <linux/ppp_defs.h> 38#include <linux/ppp-ioctl.h> 39#include <linux/if_pppox.h> 40#include <linux/mtio.h> 41#include <linux/tty.h> 42#include <linux/vt_kern.h> 43#include <linux/fb.h> 44#include <linux/videodev2.h> 45#include <linux/netdevice.h> 46#include <linux/raw.h> 47#include <linux/blkdev.h> 48#include <linux/elevator.h> 49#include <linux/rtc.h> 50#include <linux/pci.h> 51#include <linux/serial.h> 52#include <linux/if_tun.h> 53#include <linux/ctype.h> 54#include <linux/syscalls.h> 55#include <linux/atalk.h> 56#include <linux/gfp.h> 57#include <linux/cec.h> 58 59#include "internal.h" 60 61#include <net/bluetooth/bluetooth.h> 62#include <net/bluetooth/hci_sock.h> 63#include <net/bluetooth/rfcomm.h> 64 65#include <linux/capi.h> 66#include <linux/gigaset_dev.h> 67 68#ifdef CONFIG_BLOCK 69#include <linux/cdrom.h> 70#include <linux/fd.h> 71#include <scsi/scsi.h> 72#include <scsi/scsi_ioctl.h> 73#include <scsi/sg.h> 74#endif 75 76#include <linux/uaccess.h> 77#include <linux/ethtool.h> 78#include <linux/mii.h> 79#include <linux/if_bonding.h> 80#include <linux/watchdog.h> 81 82#include <linux/soundcard.h> 83#include <linux/lp.h> 84#include <linux/ppdev.h> 85 86#include <linux/atm.h> 87#include <linux/atmarp.h> 88#include <linux/atmclip.h> 89#include <linux/atmdev.h> 90#include <linux/atmioc.h> 91#include <linux/atmlec.h> 92#include <linux/atmmpc.h> 93#include <linux/atmsvc.h> 94#include <linux/atm_tcp.h> 95#include <linux/sonet.h> 96#include <linux/atm_suni.h> 97 98#include <linux/usb.h> 99#include <linux/usbdevice_fs.h> 100#include <linux/nbd.h> 101#include <linux/random.h> 102#include <linux/filter.h> 103 104#include <linux/hiddev.h> 105 106#define __DVB_CORE__ 107#include <linux/dvb/audio.h> 108#include <linux/dvb/dmx.h> 109#include <linux/dvb/frontend.h> 110#include <linux/dvb/video.h> 111 112#include <linux/sort.h> 113 114#ifdef CONFIG_SPARC 115#include <asm/fbio.h> 116#endif 117 118#define convert_in_user(srcptr, dstptr) \ 119({ \ 120 typeof(*srcptr) val; \ 121 \ 122 get_user(val, srcptr) || put_user(val, dstptr); \ 123}) 124 125static int do_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 126{ 127 int err; 128 129 err = security_file_ioctl(file, cmd, arg); 130 if (err) 131 return err; 132 133 return vfs_ioctl(file, cmd, arg); 134} 135 136struct compat_video_event { 137 int32_t type; 138 compat_time_t timestamp; 139 union { 140 video_size_t size; 141 unsigned int frame_rate; 142 } u; 143}; 144 145static int do_video_get_event(struct file *file, 146 unsigned int cmd, struct compat_video_event __user *up) 147{ 148 struct video_event __user *kevent = 149 compat_alloc_user_space(sizeof(*kevent)); 150 int err; 151 152 if (kevent == NULL) 153 return -EFAULT; 154 155 err = do_ioctl(file, cmd, (unsigned long)kevent); 156 if (!err) { 157 err = convert_in_user(&kevent->type, &up->type); 158 err |= convert_in_user(&kevent->timestamp, &up->timestamp); 159 err |= convert_in_user(&kevent->u.size.w, &up->u.size.w); 160 err |= convert_in_user(&kevent->u.size.h, &up->u.size.h); 161 err |= convert_in_user(&kevent->u.size.aspect_ratio, 162 &up->u.size.aspect_ratio); 163 if (err) 164 err = -EFAULT; 165 } 166 167 return err; 168} 169 170struct compat_video_still_picture { 171 compat_uptr_t iFrame; 172 int32_t size; 173}; 174 175static int do_video_stillpicture(struct file *file, 176 unsigned int cmd, struct compat_video_still_picture __user *up) 177{ 178 struct video_still_picture __user *up_native; 179 compat_uptr_t fp; 180 int32_t size; 181 int err; 182 183 err = get_user(fp, &up->iFrame); 184 err |= get_user(size, &up->size); 185 if (err) 186 return -EFAULT; 187 188 up_native = 189 compat_alloc_user_space(sizeof(struct video_still_picture)); 190 191 err = put_user(compat_ptr(fp), &up_native->iFrame); 192 err |= put_user(size, &up_native->size); 193 if (err) 194 return -EFAULT; 195 196 err = do_ioctl(file, cmd, (unsigned long) up_native); 197 198 return err; 199} 200 201#ifdef CONFIG_BLOCK 202typedef struct sg_io_hdr32 { 203 compat_int_t interface_id; /* [i] 'S' for SCSI generic (required) */ 204 compat_int_t dxfer_direction; /* [i] data transfer direction */ 205 unsigned char cmd_len; /* [i] SCSI command length ( <= 16 bytes) */ 206 unsigned char mx_sb_len; /* [i] max length to write to sbp */ 207 unsigned short iovec_count; /* [i] 0 implies no scatter gather */ 208 compat_uint_t dxfer_len; /* [i] byte count of data transfer */ 209 compat_uint_t dxferp; /* [i], [*io] points to data transfer memory 210 or scatter gather list */ 211 compat_uptr_t cmdp; /* [i], [*i] points to command to perform */ 212 compat_uptr_t sbp; /* [i], [*o] points to sense_buffer memory */ 213 compat_uint_t timeout; /* [i] MAX_UINT->no timeout (unit: millisec) */ 214 compat_uint_t flags; /* [i] 0 -> default, see SG_FLAG... */ 215 compat_int_t pack_id; /* [i->o] unused internally (normally) */ 216 compat_uptr_t usr_ptr; /* [i->o] unused internally */ 217 unsigned char status; /* [o] scsi status */ 218 unsigned char masked_status; /* [o] shifted, masked scsi status */ 219 unsigned char msg_status; /* [o] messaging level data (optional) */ 220 unsigned char sb_len_wr; /* [o] byte count actually written to sbp */ 221 unsigned short host_status; /* [o] errors from host adapter */ 222 unsigned short driver_status; /* [o] errors from software driver */ 223 compat_int_t resid; /* [o] dxfer_len - actual_transferred */ 224 compat_uint_t duration; /* [o] time taken by cmd (unit: millisec) */ 225 compat_uint_t info; /* [o] auxiliary information */ 226} sg_io_hdr32_t; /* 64 bytes long (on sparc32) */ 227 228typedef struct sg_iovec32 { 229 compat_uint_t iov_base; 230 compat_uint_t iov_len; 231} sg_iovec32_t; 232 233static int sg_build_iovec(sg_io_hdr_t __user *sgio, void __user *dxferp, u16 iovec_count) 234{ 235 sg_iovec_t __user *iov = (sg_iovec_t __user *) (sgio + 1); 236 sg_iovec32_t __user *iov32 = dxferp; 237 int i; 238 239 for (i = 0; i < iovec_count; i++) { 240 u32 base, len; 241 242 if (get_user(base, &iov32[i].iov_base) || 243 get_user(len, &iov32[i].iov_len) || 244 put_user(compat_ptr(base), &iov[i].iov_base) || 245 put_user(len, &iov[i].iov_len)) 246 return -EFAULT; 247 } 248 249 if (put_user(iov, &sgio->dxferp)) 250 return -EFAULT; 251 return 0; 252} 253 254static int sg_ioctl_trans(struct file *file, unsigned int cmd, 255 sg_io_hdr32_t __user *sgio32) 256{ 257 sg_io_hdr_t __user *sgio; 258 u16 iovec_count; 259 u32 data; 260 void __user *dxferp; 261 int err; 262 int interface_id; 263 264 if (get_user(interface_id, &sgio32->interface_id)) 265 return -EFAULT; 266 if (interface_id != 'S') 267 return do_ioctl(file, cmd, (unsigned long)sgio32); 268 269 if (get_user(iovec_count, &sgio32->iovec_count)) 270 return -EFAULT; 271 272 { 273 void __user *top = compat_alloc_user_space(0); 274 void __user *new = compat_alloc_user_space(sizeof(sg_io_hdr_t) + 275 (iovec_count * sizeof(sg_iovec_t))); 276 if (new > top) 277 return -EINVAL; 278 279 sgio = new; 280 } 281 282 /* Ok, now construct. */ 283 if (copy_in_user(&sgio->interface_id, &sgio32->interface_id, 284 (2 * sizeof(int)) + 285 (2 * sizeof(unsigned char)) + 286 (1 * sizeof(unsigned short)) + 287 (1 * sizeof(unsigned int)))) 288 return -EFAULT; 289 290 if (get_user(data, &sgio32->dxferp)) 291 return -EFAULT; 292 dxferp = compat_ptr(data); 293 if (iovec_count) { 294 if (sg_build_iovec(sgio, dxferp, iovec_count)) 295 return -EFAULT; 296 } else { 297 if (put_user(dxferp, &sgio->dxferp)) 298 return -EFAULT; 299 } 300 301 { 302 unsigned char __user *cmdp; 303 unsigned char __user *sbp; 304 305 if (get_user(data, &sgio32->cmdp)) 306 return -EFAULT; 307 cmdp = compat_ptr(data); 308 309 if (get_user(data, &sgio32->sbp)) 310 return -EFAULT; 311 sbp = compat_ptr(data); 312 313 if (put_user(cmdp, &sgio->cmdp) || 314 put_user(sbp, &sgio->sbp)) 315 return -EFAULT; 316 } 317 318 if (copy_in_user(&sgio->timeout, &sgio32->timeout, 319 3 * sizeof(int))) 320 return -EFAULT; 321 322 if (get_user(data, &sgio32->usr_ptr)) 323 return -EFAULT; 324 if (put_user(compat_ptr(data), &sgio->usr_ptr)) 325 return -EFAULT; 326 327 err = do_ioctl(file, cmd, (unsigned long) sgio); 328 329 if (err >= 0) { 330 void __user *datap; 331 332 if (copy_in_user(&sgio32->pack_id, &sgio->pack_id, 333 sizeof(int)) || 334 get_user(datap, &sgio->usr_ptr) || 335 put_user((u32)(unsigned long)datap, 336 &sgio32->usr_ptr) || 337 copy_in_user(&sgio32->status, &sgio->status, 338 (4 * sizeof(unsigned char)) + 339 (2 * sizeof(unsigned short)) + 340 (3 * sizeof(int)))) 341 err = -EFAULT; 342 } 343 344 return err; 345} 346 347struct compat_sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */ 348 char req_state; 349 char orphan; 350 char sg_io_owned; 351 char problem; 352 int pack_id; 353 compat_uptr_t usr_ptr; 354 unsigned int duration; 355 int unused; 356}; 357 358static int sg_grt_trans(struct file *file, 359 unsigned int cmd, struct compat_sg_req_info __user *o) 360{ 361 int err, i; 362 sg_req_info_t __user *r; 363 r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE); 364 err = do_ioctl(file, cmd, (unsigned long)r); 365 if (err < 0) 366 return err; 367 for (i = 0; i < SG_MAX_QUEUE; i++) { 368 void __user *ptr; 369 int d; 370 371 if (copy_in_user(o + i, r + i, offsetof(sg_req_info_t, usr_ptr)) || 372 get_user(ptr, &r[i].usr_ptr) || 373 get_user(d, &r[i].duration) || 374 put_user((u32)(unsigned long)(ptr), &o[i].usr_ptr) || 375 put_user(d, &o[i].duration)) 376 return -EFAULT; 377 } 378 return err; 379} 380#endif /* CONFIG_BLOCK */ 381 382struct sock_fprog32 { 383 unsigned short len; 384 compat_caddr_t filter; 385}; 386 387#define PPPIOCSPASS32 _IOW('t', 71, struct sock_fprog32) 388#define PPPIOCSACTIVE32 _IOW('t', 70, struct sock_fprog32) 389 390static int ppp_sock_fprog_ioctl_trans(struct file *file, 391 unsigned int cmd, struct sock_fprog32 __user *u_fprog32) 392{ 393 struct sock_fprog __user *u_fprog64 = compat_alloc_user_space(sizeof(struct sock_fprog)); 394 void __user *fptr64; 395 u32 fptr32; 396 u16 flen; 397 398 if (get_user(flen, &u_fprog32->len) || 399 get_user(fptr32, &u_fprog32->filter)) 400 return -EFAULT; 401 402 fptr64 = compat_ptr(fptr32); 403 404 if (put_user(flen, &u_fprog64->len) || 405 put_user(fptr64, &u_fprog64->filter)) 406 return -EFAULT; 407 408 if (cmd == PPPIOCSPASS32) 409 cmd = PPPIOCSPASS; 410 else 411 cmd = PPPIOCSACTIVE; 412 413 return do_ioctl(file, cmd, (unsigned long) u_fprog64); 414} 415 416struct ppp_option_data32 { 417 compat_caddr_t ptr; 418 u32 length; 419 compat_int_t transmit; 420}; 421#define PPPIOCSCOMPRESS32 _IOW('t', 77, struct ppp_option_data32) 422 423struct ppp_idle32 { 424 compat_time_t xmit_idle; 425 compat_time_t recv_idle; 426}; 427#define PPPIOCGIDLE32 _IOR('t', 63, struct ppp_idle32) 428 429static int ppp_gidle(struct file *file, unsigned int cmd, 430 struct ppp_idle32 __user *idle32) 431{ 432 struct ppp_idle __user *idle; 433 __kernel_time_t xmit, recv; 434 int err; 435 436 idle = compat_alloc_user_space(sizeof(*idle)); 437 438 err = do_ioctl(file, PPPIOCGIDLE, (unsigned long) idle); 439 440 if (!err) { 441 if (get_user(xmit, &idle->xmit_idle) || 442 get_user(recv, &idle->recv_idle) || 443 put_user(xmit, &idle32->xmit_idle) || 444 put_user(recv, &idle32->recv_idle)) 445 err = -EFAULT; 446 } 447 return err; 448} 449 450static int ppp_scompress(struct file *file, unsigned int cmd, 451 struct ppp_option_data32 __user *odata32) 452{ 453 struct ppp_option_data __user *odata; 454 __u32 data; 455 void __user *datap; 456 457 odata = compat_alloc_user_space(sizeof(*odata)); 458 459 if (get_user(data, &odata32->ptr)) 460 return -EFAULT; 461 462 datap = compat_ptr(data); 463 if (put_user(datap, &odata->ptr)) 464 return -EFAULT; 465 466 if (copy_in_user(&odata->length, &odata32->length, 467 sizeof(__u32) + sizeof(int))) 468 return -EFAULT; 469 470 return do_ioctl(file, PPPIOCSCOMPRESS, (unsigned long) odata); 471} 472 473#ifdef CONFIG_BLOCK 474struct mtget32 { 475 compat_long_t mt_type; 476 compat_long_t mt_resid; 477 compat_long_t mt_dsreg; 478 compat_long_t mt_gstat; 479 compat_long_t mt_erreg; 480 compat_daddr_t mt_fileno; 481 compat_daddr_t mt_blkno; 482}; 483#define MTIOCGET32 _IOR('m', 2, struct mtget32) 484 485struct mtpos32 { 486 compat_long_t mt_blkno; 487}; 488#define MTIOCPOS32 _IOR('m', 3, struct mtpos32) 489 490static int mt_ioctl_trans(struct file *file, 491 unsigned int cmd, void __user *argp) 492{ 493 /* NULL initialization to make gcc shut up */ 494 struct mtget __user *get = NULL; 495 struct mtget32 __user *umget32; 496 struct mtpos __user *pos = NULL; 497 struct mtpos32 __user *upos32; 498 unsigned long kcmd; 499 void *karg; 500 int err = 0; 501 502 switch(cmd) { 503 case MTIOCPOS32: 504 kcmd = MTIOCPOS; 505 pos = compat_alloc_user_space(sizeof(*pos)); 506 karg = pos; 507 break; 508 default: /* MTIOCGET32 */ 509 kcmd = MTIOCGET; 510 get = compat_alloc_user_space(sizeof(*get)); 511 karg = get; 512 break; 513 } 514 if (karg == NULL) 515 return -EFAULT; 516 err = do_ioctl(file, kcmd, (unsigned long)karg); 517 if (err) 518 return err; 519 switch (cmd) { 520 case MTIOCPOS32: 521 upos32 = argp; 522 err = convert_in_user(&pos->mt_blkno, &upos32->mt_blkno); 523 break; 524 case MTIOCGET32: 525 umget32 = argp; 526 err = convert_in_user(&get->mt_type, &umget32->mt_type); 527 err |= convert_in_user(&get->mt_resid, &umget32->mt_resid); 528 err |= convert_in_user(&get->mt_dsreg, &umget32->mt_dsreg); 529 err |= convert_in_user(&get->mt_gstat, &umget32->mt_gstat); 530 err |= convert_in_user(&get->mt_erreg, &umget32->mt_erreg); 531 err |= convert_in_user(&get->mt_fileno, &umget32->mt_fileno); 532 err |= convert_in_user(&get->mt_blkno, &umget32->mt_blkno); 533 break; 534 } 535 return err ? -EFAULT: 0; 536} 537 538#endif /* CONFIG_BLOCK */ 539 540/* Bluetooth ioctls */ 541#define HCIUARTSETPROTO _IOW('U', 200, int) 542#define HCIUARTGETPROTO _IOR('U', 201, int) 543#define HCIUARTGETDEVICE _IOR('U', 202, int) 544#define HCIUARTSETFLAGS _IOW('U', 203, int) 545#define HCIUARTGETFLAGS _IOR('U', 204, int) 546 547#define BNEPCONNADD _IOW('B', 200, int) 548#define BNEPCONNDEL _IOW('B', 201, int) 549#define BNEPGETCONNLIST _IOR('B', 210, int) 550#define BNEPGETCONNINFO _IOR('B', 211, int) 551#define BNEPGETSUPPFEAT _IOR('B', 212, int) 552 553#define CMTPCONNADD _IOW('C', 200, int) 554#define CMTPCONNDEL _IOW('C', 201, int) 555#define CMTPGETCONNLIST _IOR('C', 210, int) 556#define CMTPGETCONNINFO _IOR('C', 211, int) 557 558#define HIDPCONNADD _IOW('H', 200, int) 559#define HIDPCONNDEL _IOW('H', 201, int) 560#define HIDPGETCONNLIST _IOR('H', 210, int) 561#define HIDPGETCONNINFO _IOR('H', 211, int) 562 563 564struct serial_struct32 { 565 compat_int_t type; 566 compat_int_t line; 567 compat_uint_t port; 568 compat_int_t irq; 569 compat_int_t flags; 570 compat_int_t xmit_fifo_size; 571 compat_int_t custom_divisor; 572 compat_int_t baud_base; 573 unsigned short close_delay; 574 char io_type; 575 char reserved_char[1]; 576 compat_int_t hub6; 577 unsigned short closing_wait; /* time to wait before closing */ 578 unsigned short closing_wait2; /* no longer used... */ 579 compat_uint_t iomem_base; 580 unsigned short iomem_reg_shift; 581 unsigned int port_high; 582 /* compat_ulong_t iomap_base FIXME */ 583 compat_int_t reserved[1]; 584}; 585 586static int serial_struct_ioctl(struct file *file, 587 unsigned cmd, struct serial_struct32 __user *ss32) 588{ 589 typedef struct serial_struct32 SS32; 590 int err; 591 struct serial_struct __user *ss = compat_alloc_user_space(sizeof(*ss)); 592 __u32 udata; 593 unsigned int base; 594 unsigned char *iomem_base; 595 596 if (ss == NULL) 597 return -EFAULT; 598 if (cmd == TIOCSSERIAL) { 599 if (copy_in_user(ss, ss32, offsetof(SS32, iomem_base)) || 600 get_user(udata, &ss32->iomem_base)) 601 return -EFAULT; 602 iomem_base = compat_ptr(udata); 603 if (put_user(iomem_base, &ss->iomem_base) || 604 convert_in_user(&ss32->iomem_reg_shift, 605 &ss->iomem_reg_shift) || 606 convert_in_user(&ss32->port_high, &ss->port_high) || 607 put_user(0UL, &ss->iomap_base)) 608 return -EFAULT; 609 } 610 err = do_ioctl(file, cmd, (unsigned long)ss); 611 if (cmd == TIOCGSERIAL && err >= 0) { 612 if (copy_in_user(ss32, ss, offsetof(SS32, iomem_base)) || 613 get_user(iomem_base, &ss->iomem_base)) 614 return -EFAULT; 615 base = (unsigned long)iomem_base >> 32 ? 616 0xffffffff : (unsigned)(unsigned long)iomem_base; 617 if (put_user(base, &ss32->iomem_base) || 618 convert_in_user(&ss->iomem_reg_shift, 619 &ss32->iomem_reg_shift) || 620 convert_in_user(&ss->port_high, &ss32->port_high)) 621 return -EFAULT; 622 } 623 return err; 624} 625 626#define RTC_IRQP_READ32 _IOR('p', 0x0b, compat_ulong_t) 627#define RTC_IRQP_SET32 _IOW('p', 0x0c, compat_ulong_t) 628#define RTC_EPOCH_READ32 _IOR('p', 0x0d, compat_ulong_t) 629#define RTC_EPOCH_SET32 _IOW('p', 0x0e, compat_ulong_t) 630 631static int rtc_ioctl(struct file *file, 632 unsigned cmd, void __user *argp) 633{ 634 unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp)); 635 int ret; 636 637 if (valp == NULL) 638 return -EFAULT; 639 switch (cmd) { 640 case RTC_IRQP_READ32: 641 case RTC_EPOCH_READ32: 642 ret = do_ioctl(file, (cmd == RTC_IRQP_READ32) ? 643 RTC_IRQP_READ : RTC_EPOCH_READ, 644 (unsigned long)valp); 645 if (ret) 646 return ret; 647 return convert_in_user(valp, (unsigned int __user *)argp); 648 case RTC_IRQP_SET32: 649 return do_ioctl(file, RTC_IRQP_SET, (unsigned long)argp); 650 case RTC_EPOCH_SET32: 651 return do_ioctl(file, RTC_EPOCH_SET, (unsigned long)argp); 652 } 653 654 return -ENOIOCTLCMD; 655} 656 657/* on ia32 l_start is on a 32-bit boundary */ 658#if defined(CONFIG_IA64) || defined(CONFIG_X86_64) 659struct space_resv_32 { 660 __s16 l_type; 661 __s16 l_whence; 662 __s64 l_start __attribute__((packed)); 663 /* len == 0 means until end of file */ 664 __s64 l_len __attribute__((packed)); 665 __s32 l_sysid; 666 __u32 l_pid; 667 __s32 l_pad[4]; /* reserve area */ 668}; 669 670#define FS_IOC_RESVSP_32 _IOW ('X', 40, struct space_resv_32) 671#define FS_IOC_RESVSP64_32 _IOW ('X', 42, struct space_resv_32) 672 673/* just account for different alignment */ 674static int compat_ioctl_preallocate(struct file *file, 675 struct space_resv_32 __user *p32) 676{ 677 struct space_resv __user *p = compat_alloc_user_space(sizeof(*p)); 678 679 if (copy_in_user(&p->l_type, &p32->l_type, sizeof(s16)) || 680 copy_in_user(&p->l_whence, &p32->l_whence, sizeof(s16)) || 681 copy_in_user(&p->l_start, &p32->l_start, sizeof(s64)) || 682 copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) || 683 copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) || 684 copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) || 685 copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32))) 686 return -EFAULT; 687 688 return ioctl_preallocate(file, p); 689} 690#endif 691 692/* 693 * simple reversible transform to make our table more evenly 694 * distributed after sorting. 695 */ 696#define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff) 697 698#define COMPATIBLE_IOCTL(cmd) XFORM((u32)cmd), 699/* ioctl should not be warned about even if it's not implemented. 700 Valid reasons to use this: 701 - It is implemented with ->compat_ioctl on some device, but programs 702 call it on others too. 703 - The ioctl is not implemented in the native kernel, but programs 704 call it commonly anyways. 705 Most other reasons are not valid. */ 706#define IGNORE_IOCTL(cmd) COMPATIBLE_IOCTL(cmd) 707 708static unsigned int ioctl_pointer[] = { 709/* compatible ioctls first */ 710COMPATIBLE_IOCTL(0x4B50) /* KDGHWCLK - not in the kernel, but don't complain */ 711COMPATIBLE_IOCTL(0x4B51) /* KDSHWCLK - not in the kernel, but don't complain */ 712 713/* Big T */ 714COMPATIBLE_IOCTL(TCGETA) 715COMPATIBLE_IOCTL(TCSETA) 716COMPATIBLE_IOCTL(TCSETAW) 717COMPATIBLE_IOCTL(TCSETAF) 718COMPATIBLE_IOCTL(TCSBRK) 719COMPATIBLE_IOCTL(TCXONC) 720COMPATIBLE_IOCTL(TCFLSH) 721COMPATIBLE_IOCTL(TCGETS) 722COMPATIBLE_IOCTL(TCSETS) 723COMPATIBLE_IOCTL(TCSETSW) 724COMPATIBLE_IOCTL(TCSETSF) 725COMPATIBLE_IOCTL(TIOCLINUX) 726COMPATIBLE_IOCTL(TIOCSBRK) 727COMPATIBLE_IOCTL(TIOCGDEV) 728COMPATIBLE_IOCTL(TIOCCBRK) 729COMPATIBLE_IOCTL(TIOCGSID) 730COMPATIBLE_IOCTL(TIOCGICOUNT) 731COMPATIBLE_IOCTL(TIOCGEXCL) 732/* Little t */ 733COMPATIBLE_IOCTL(TIOCGETD) 734COMPATIBLE_IOCTL(TIOCSETD) 735COMPATIBLE_IOCTL(TIOCEXCL) 736COMPATIBLE_IOCTL(TIOCNXCL) 737COMPATIBLE_IOCTL(TIOCCONS) 738COMPATIBLE_IOCTL(TIOCGSOFTCAR) 739COMPATIBLE_IOCTL(TIOCSSOFTCAR) 740COMPATIBLE_IOCTL(TIOCSWINSZ) 741COMPATIBLE_IOCTL(TIOCGWINSZ) 742COMPATIBLE_IOCTL(TIOCMGET) 743COMPATIBLE_IOCTL(TIOCMBIC) 744COMPATIBLE_IOCTL(TIOCMBIS) 745COMPATIBLE_IOCTL(TIOCMSET) 746COMPATIBLE_IOCTL(TIOCNOTTY) 747COMPATIBLE_IOCTL(TIOCSTI) 748COMPATIBLE_IOCTL(TIOCOUTQ) 749COMPATIBLE_IOCTL(TIOCSPGRP) 750COMPATIBLE_IOCTL(TIOCGPGRP) 751COMPATIBLE_IOCTL(TIOCSERGETLSR) 752#ifdef TIOCSRS485 753COMPATIBLE_IOCTL(TIOCSRS485) 754#endif 755#ifdef TIOCGRS485 756COMPATIBLE_IOCTL(TIOCGRS485) 757#endif 758#ifdef TCGETS2 759COMPATIBLE_IOCTL(TCGETS2) 760COMPATIBLE_IOCTL(TCSETS2) 761COMPATIBLE_IOCTL(TCSETSW2) 762COMPATIBLE_IOCTL(TCSETSF2) 763#endif 764/* Little f */ 765COMPATIBLE_IOCTL(FIOCLEX) 766COMPATIBLE_IOCTL(FIONCLEX) 767COMPATIBLE_IOCTL(FIOASYNC) 768COMPATIBLE_IOCTL(FIONBIO) 769COMPATIBLE_IOCTL(FIONREAD) /* This is also TIOCINQ */ 770COMPATIBLE_IOCTL(FS_IOC_FIEMAP) 771/* 0x00 */ 772COMPATIBLE_IOCTL(FIBMAP) 773COMPATIBLE_IOCTL(FIGETBSZ) 774/* 'X' - originally XFS but some now in the VFS */ 775COMPATIBLE_IOCTL(FIFREEZE) 776COMPATIBLE_IOCTL(FITHAW) 777COMPATIBLE_IOCTL(FITRIM) 778COMPATIBLE_IOCTL(KDGETKEYCODE) 779COMPATIBLE_IOCTL(KDSETKEYCODE) 780COMPATIBLE_IOCTL(KDGKBTYPE) 781COMPATIBLE_IOCTL(KDGETMODE) 782COMPATIBLE_IOCTL(KDGKBMODE) 783COMPATIBLE_IOCTL(KDGKBMETA) 784COMPATIBLE_IOCTL(KDGKBENT) 785COMPATIBLE_IOCTL(KDSKBENT) 786COMPATIBLE_IOCTL(KDGKBSENT) 787COMPATIBLE_IOCTL(KDSKBSENT) 788COMPATIBLE_IOCTL(KDGKBDIACR) 789COMPATIBLE_IOCTL(KDSKBDIACR) 790COMPATIBLE_IOCTL(KDGKBDIACRUC) 791COMPATIBLE_IOCTL(KDSKBDIACRUC) 792COMPATIBLE_IOCTL(KDKBDREP) 793COMPATIBLE_IOCTL(KDGKBLED) 794COMPATIBLE_IOCTL(KDGETLED) 795#ifdef CONFIG_BLOCK 796/* Big S */ 797COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN) 798COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK) 799COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK) 800COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY) 801COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER) 802COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND) 803COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST) 804COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI) 805#endif 806/* Big V (don't complain on serial console) */ 807IGNORE_IOCTL(VT_OPENQRY) 808IGNORE_IOCTL(VT_GETMODE) 809/* Little p (/dev/rtc, /dev/envctrl, etc.) */ 810COMPATIBLE_IOCTL(RTC_AIE_ON) 811COMPATIBLE_IOCTL(RTC_AIE_OFF) 812COMPATIBLE_IOCTL(RTC_UIE_ON) 813COMPATIBLE_IOCTL(RTC_UIE_OFF) 814COMPATIBLE_IOCTL(RTC_PIE_ON) 815COMPATIBLE_IOCTL(RTC_PIE_OFF) 816COMPATIBLE_IOCTL(RTC_WIE_ON) 817COMPATIBLE_IOCTL(RTC_WIE_OFF) 818COMPATIBLE_IOCTL(RTC_ALM_SET) 819COMPATIBLE_IOCTL(RTC_ALM_READ) 820COMPATIBLE_IOCTL(RTC_RD_TIME) 821COMPATIBLE_IOCTL(RTC_SET_TIME) 822COMPATIBLE_IOCTL(RTC_WKALM_SET) 823COMPATIBLE_IOCTL(RTC_WKALM_RD) 824/* 825 * These two are only for the sbus rtc driver, but 826 * hwclock tries them on every rtc device first when 827 * running on sparc. On other architectures the entries 828 * are useless but harmless. 829 */ 830COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */ 831COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */ 832/* Little m */ 833COMPATIBLE_IOCTL(MTIOCTOP) 834/* Socket level stuff */ 835COMPATIBLE_IOCTL(FIOQSIZE) 836#ifdef CONFIG_BLOCK 837/* md calls this on random blockdevs */ 838IGNORE_IOCTL(RAID_VERSION) 839/* qemu/qemu-img might call these two on plain files for probing */ 840IGNORE_IOCTL(CDROM_DRIVE_STATUS) 841IGNORE_IOCTL(FDGETPRM32) 842/* SG stuff */ 843COMPATIBLE_IOCTL(SG_SET_TIMEOUT) 844COMPATIBLE_IOCTL(SG_GET_TIMEOUT) 845COMPATIBLE_IOCTL(SG_EMULATED_HOST) 846COMPATIBLE_IOCTL(SG_GET_TRANSFORM) 847COMPATIBLE_IOCTL(SG_SET_RESERVED_SIZE) 848COMPATIBLE_IOCTL(SG_GET_RESERVED_SIZE) 849COMPATIBLE_IOCTL(SG_GET_SCSI_ID) 850COMPATIBLE_IOCTL(SG_SET_FORCE_LOW_DMA) 851COMPATIBLE_IOCTL(SG_GET_LOW_DMA) 852COMPATIBLE_IOCTL(SG_SET_FORCE_PACK_ID) 853COMPATIBLE_IOCTL(SG_GET_PACK_ID) 854COMPATIBLE_IOCTL(SG_GET_NUM_WAITING) 855COMPATIBLE_IOCTL(SG_SET_DEBUG) 856COMPATIBLE_IOCTL(SG_GET_SG_TABLESIZE) 857COMPATIBLE_IOCTL(SG_GET_COMMAND_Q) 858COMPATIBLE_IOCTL(SG_SET_COMMAND_Q) 859COMPATIBLE_IOCTL(SG_GET_VERSION_NUM) 860COMPATIBLE_IOCTL(SG_NEXT_CMD_LEN) 861COMPATIBLE_IOCTL(SG_SCSI_RESET) 862COMPATIBLE_IOCTL(SG_GET_REQUEST_TABLE) 863COMPATIBLE_IOCTL(SG_SET_KEEP_ORPHAN) 864COMPATIBLE_IOCTL(SG_GET_KEEP_ORPHAN) 865#endif 866/* PPP stuff */ 867COMPATIBLE_IOCTL(PPPIOCGFLAGS) 868COMPATIBLE_IOCTL(PPPIOCSFLAGS) 869COMPATIBLE_IOCTL(PPPIOCGASYNCMAP) 870COMPATIBLE_IOCTL(PPPIOCSASYNCMAP) 871COMPATIBLE_IOCTL(PPPIOCGUNIT) 872COMPATIBLE_IOCTL(PPPIOCGRASYNCMAP) 873COMPATIBLE_IOCTL(PPPIOCSRASYNCMAP) 874COMPATIBLE_IOCTL(PPPIOCGMRU) 875COMPATIBLE_IOCTL(PPPIOCSMRU) 876COMPATIBLE_IOCTL(PPPIOCSMAXCID) 877COMPATIBLE_IOCTL(PPPIOCGXASYNCMAP) 878COMPATIBLE_IOCTL(PPPIOCSXASYNCMAP) 879COMPATIBLE_IOCTL(PPPIOCXFERUNIT) 880/* PPPIOCSCOMPRESS is translated */ 881COMPATIBLE_IOCTL(PPPIOCGNPMODE) 882COMPATIBLE_IOCTL(PPPIOCSNPMODE) 883COMPATIBLE_IOCTL(PPPIOCGDEBUG) 884COMPATIBLE_IOCTL(PPPIOCSDEBUG) 885/* PPPIOCSPASS is translated */ 886/* PPPIOCSACTIVE is translated */ 887/* PPPIOCGIDLE is translated */ 888COMPATIBLE_IOCTL(PPPIOCNEWUNIT) 889COMPATIBLE_IOCTL(PPPIOCATTACH) 890COMPATIBLE_IOCTL(PPPIOCDETACH) 891COMPATIBLE_IOCTL(PPPIOCSMRRU) 892COMPATIBLE_IOCTL(PPPIOCCONNECT) 893COMPATIBLE_IOCTL(PPPIOCDISCONN) 894COMPATIBLE_IOCTL(PPPIOCATTCHAN) 895COMPATIBLE_IOCTL(PPPIOCGCHAN) 896COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS) 897/* PPPOX */ 898COMPATIBLE_IOCTL(PPPOEIOCSFWD) 899COMPATIBLE_IOCTL(PPPOEIOCDFWD) 900/* Big A */ 901/* sparc only */ 902/* Big Q for sound/OSS */ 903COMPATIBLE_IOCTL(SNDCTL_SEQ_RESET) 904COMPATIBLE_IOCTL(SNDCTL_SEQ_SYNC) 905COMPATIBLE_IOCTL(SNDCTL_SYNTH_INFO) 906COMPATIBLE_IOCTL(SNDCTL_SEQ_CTRLRATE) 907COMPATIBLE_IOCTL(SNDCTL_SEQ_GETOUTCOUNT) 908COMPATIBLE_IOCTL(SNDCTL_SEQ_GETINCOUNT) 909COMPATIBLE_IOCTL(SNDCTL_SEQ_PERCMODE) 910COMPATIBLE_IOCTL(SNDCTL_FM_LOAD_INSTR) 911COMPATIBLE_IOCTL(SNDCTL_SEQ_TESTMIDI) 912COMPATIBLE_IOCTL(SNDCTL_SEQ_RESETSAMPLES) 913COMPATIBLE_IOCTL(SNDCTL_SEQ_NRSYNTHS) 914COMPATIBLE_IOCTL(SNDCTL_SEQ_NRMIDIS) 915COMPATIBLE_IOCTL(SNDCTL_MIDI_INFO) 916COMPATIBLE_IOCTL(SNDCTL_SEQ_THRESHOLD) 917COMPATIBLE_IOCTL(SNDCTL_SYNTH_MEMAVL) 918COMPATIBLE_IOCTL(SNDCTL_FM_4OP_ENABLE) 919COMPATIBLE_IOCTL(SNDCTL_SEQ_PANIC) 920COMPATIBLE_IOCTL(SNDCTL_SEQ_OUTOFBAND) 921COMPATIBLE_IOCTL(SNDCTL_SEQ_GETTIME) 922COMPATIBLE_IOCTL(SNDCTL_SYNTH_ID) 923COMPATIBLE_IOCTL(SNDCTL_SYNTH_CONTROL) 924COMPATIBLE_IOCTL(SNDCTL_SYNTH_REMOVESAMPLE) 925/* Big T for sound/OSS */ 926COMPATIBLE_IOCTL(SNDCTL_TMR_TIMEBASE) 927COMPATIBLE_IOCTL(SNDCTL_TMR_START) 928COMPATIBLE_IOCTL(SNDCTL_TMR_STOP) 929COMPATIBLE_IOCTL(SNDCTL_TMR_CONTINUE) 930COMPATIBLE_IOCTL(SNDCTL_TMR_TEMPO) 931COMPATIBLE_IOCTL(SNDCTL_TMR_SOURCE) 932COMPATIBLE_IOCTL(SNDCTL_TMR_METRONOME) 933COMPATIBLE_IOCTL(SNDCTL_TMR_SELECT) 934/* Little m for sound/OSS */ 935COMPATIBLE_IOCTL(SNDCTL_MIDI_PRETIME) 936COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUMODE) 937COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUCMD) 938/* Big P for sound/OSS */ 939COMPATIBLE_IOCTL(SNDCTL_DSP_RESET) 940COMPATIBLE_IOCTL(SNDCTL_DSP_SYNC) 941COMPATIBLE_IOCTL(SNDCTL_DSP_SPEED) 942COMPATIBLE_IOCTL(SNDCTL_DSP_STEREO) 943COMPATIBLE_IOCTL(SNDCTL_DSP_GETBLKSIZE) 944COMPATIBLE_IOCTL(SNDCTL_DSP_CHANNELS) 945COMPATIBLE_IOCTL(SOUND_PCM_WRITE_FILTER) 946COMPATIBLE_IOCTL(SNDCTL_DSP_POST) 947COMPATIBLE_IOCTL(SNDCTL_DSP_SUBDIVIDE) 948COMPATIBLE_IOCTL(SNDCTL_DSP_SETFRAGMENT) 949COMPATIBLE_IOCTL(SNDCTL_DSP_GETFMTS) 950COMPATIBLE_IOCTL(SNDCTL_DSP_SETFMT) 951COMPATIBLE_IOCTL(SNDCTL_DSP_GETOSPACE) 952COMPATIBLE_IOCTL(SNDCTL_DSP_GETISPACE) 953COMPATIBLE_IOCTL(SNDCTL_DSP_NONBLOCK) 954COMPATIBLE_IOCTL(SNDCTL_DSP_GETCAPS) 955COMPATIBLE_IOCTL(SNDCTL_DSP_GETTRIGGER) 956COMPATIBLE_IOCTL(SNDCTL_DSP_SETTRIGGER) 957COMPATIBLE_IOCTL(SNDCTL_DSP_GETIPTR) 958COMPATIBLE_IOCTL(SNDCTL_DSP_GETOPTR) 959/* SNDCTL_DSP_MAPINBUF, XXX needs translation */ 960/* SNDCTL_DSP_MAPOUTBUF, XXX needs translation */ 961COMPATIBLE_IOCTL(SNDCTL_DSP_SETSYNCRO) 962COMPATIBLE_IOCTL(SNDCTL_DSP_SETDUPLEX) 963COMPATIBLE_IOCTL(SNDCTL_DSP_GETODELAY) 964COMPATIBLE_IOCTL(SNDCTL_DSP_PROFILE) 965COMPATIBLE_IOCTL(SOUND_PCM_READ_RATE) 966COMPATIBLE_IOCTL(SOUND_PCM_READ_CHANNELS) 967COMPATIBLE_IOCTL(SOUND_PCM_READ_BITS) 968COMPATIBLE_IOCTL(SOUND_PCM_READ_FILTER) 969/* Big C for sound/OSS */ 970COMPATIBLE_IOCTL(SNDCTL_COPR_RESET) 971COMPATIBLE_IOCTL(SNDCTL_COPR_LOAD) 972COMPATIBLE_IOCTL(SNDCTL_COPR_RDATA) 973COMPATIBLE_IOCTL(SNDCTL_COPR_RCODE) 974COMPATIBLE_IOCTL(SNDCTL_COPR_WDATA) 975COMPATIBLE_IOCTL(SNDCTL_COPR_WCODE) 976COMPATIBLE_IOCTL(SNDCTL_COPR_RUN) 977COMPATIBLE_IOCTL(SNDCTL_COPR_HALT) 978COMPATIBLE_IOCTL(SNDCTL_COPR_SENDMSG) 979COMPATIBLE_IOCTL(SNDCTL_COPR_RCVMSG) 980/* Big M for sound/OSS */ 981COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME) 982COMPATIBLE_IOCTL(SOUND_MIXER_READ_BASS) 983COMPATIBLE_IOCTL(SOUND_MIXER_READ_TREBLE) 984COMPATIBLE_IOCTL(SOUND_MIXER_READ_SYNTH) 985COMPATIBLE_IOCTL(SOUND_MIXER_READ_PCM) 986COMPATIBLE_IOCTL(SOUND_MIXER_READ_SPEAKER) 987COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE) 988COMPATIBLE_IOCTL(SOUND_MIXER_READ_MIC) 989COMPATIBLE_IOCTL(SOUND_MIXER_READ_CD) 990COMPATIBLE_IOCTL(SOUND_MIXER_READ_IMIX) 991COMPATIBLE_IOCTL(SOUND_MIXER_READ_ALTPCM) 992COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECLEV) 993COMPATIBLE_IOCTL(SOUND_MIXER_READ_IGAIN) 994COMPATIBLE_IOCTL(SOUND_MIXER_READ_OGAIN) 995COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE1) 996COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE2) 997COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE3) 998COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL1)) 999COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL2)) 1000COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL3)) 1001COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEIN)) 1002COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEOUT)) 1003COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_VIDEO)) 1004COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_RADIO)) 1005COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_MONITOR)) 1006COMPATIBLE_IOCTL(SOUND_MIXER_READ_MUTE) 1007/* SOUND_MIXER_READ_ENHANCE, same value as READ_MUTE */ 1008/* SOUND_MIXER_READ_LOUD, same value as READ_MUTE */ 1009COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECSRC) 1010COMPATIBLE_IOCTL(SOUND_MIXER_READ_DEVMASK) 1011COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECMASK) 1012COMPATIBLE_IOCTL(SOUND_MIXER_READ_STEREODEVS) 1013COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS) 1014COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_VOLUME) 1015COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_BASS) 1016COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_TREBLE) 1017COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SYNTH) 1018COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_PCM) 1019COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SPEAKER) 1020COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE) 1021COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MIC) 1022COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_CD) 1023COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IMIX) 1024COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_ALTPCM) 1025COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECLEV) 1026COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IGAIN) 1027COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_OGAIN) 1028COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE1) 1029COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE2) 1030COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE3) 1031COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL1)) 1032COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL2)) 1033COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL3)) 1034COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEIN)) 1035COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEOUT)) 1036COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_VIDEO)) 1037COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_RADIO)) 1038COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_MONITOR)) 1039COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MUTE) 1040/* SOUND_MIXER_WRITE_ENHANCE, same value as WRITE_MUTE */ 1041/* SOUND_MIXER_WRITE_LOUD, same value as WRITE_MUTE */ 1042COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECSRC) 1043COMPATIBLE_IOCTL(SOUND_MIXER_INFO) 1044COMPATIBLE_IOCTL(SOUND_OLD_MIXER_INFO) 1045COMPATIBLE_IOCTL(SOUND_MIXER_ACCESS) 1046COMPATIBLE_IOCTL(SOUND_MIXER_AGC) 1047COMPATIBLE_IOCTL(SOUND_MIXER_3DSE) 1048COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE1) 1049COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE2) 1050COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE3) 1051COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE4) 1052COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5) 1053COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS) 1054COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS) 1055COMPATIBLE_IOCTL(OSS_GETVERSION) 1056/* Raw devices */ 1057COMPATIBLE_IOCTL(RAW_SETBIND) 1058COMPATIBLE_IOCTL(RAW_GETBIND) 1059/* Watchdog */ 1060COMPATIBLE_IOCTL(WDIOC_GETSUPPORT) 1061COMPATIBLE_IOCTL(WDIOC_GETSTATUS) 1062COMPATIBLE_IOCTL(WDIOC_GETBOOTSTATUS) 1063COMPATIBLE_IOCTL(WDIOC_GETTEMP) 1064COMPATIBLE_IOCTL(WDIOC_SETOPTIONS) 1065COMPATIBLE_IOCTL(WDIOC_KEEPALIVE) 1066COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT) 1067COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT) 1068COMPATIBLE_IOCTL(WDIOC_SETPRETIMEOUT) 1069COMPATIBLE_IOCTL(WDIOC_GETPRETIMEOUT) 1070/* Big R */ 1071COMPATIBLE_IOCTL(RNDGETENTCNT) 1072COMPATIBLE_IOCTL(RNDADDTOENTCNT) 1073COMPATIBLE_IOCTL(RNDGETPOOL) 1074COMPATIBLE_IOCTL(RNDADDENTROPY) 1075COMPATIBLE_IOCTL(RNDZAPENTCNT) 1076COMPATIBLE_IOCTL(RNDCLEARPOOL) 1077/* Bluetooth */ 1078COMPATIBLE_IOCTL(HCIDEVUP) 1079COMPATIBLE_IOCTL(HCIDEVDOWN) 1080COMPATIBLE_IOCTL(HCIDEVRESET) 1081COMPATIBLE_IOCTL(HCIDEVRESTAT) 1082COMPATIBLE_IOCTL(HCIGETDEVLIST) 1083COMPATIBLE_IOCTL(HCIGETDEVINFO) 1084COMPATIBLE_IOCTL(HCIGETCONNLIST) 1085COMPATIBLE_IOCTL(HCIGETCONNINFO) 1086COMPATIBLE_IOCTL(HCIGETAUTHINFO) 1087COMPATIBLE_IOCTL(HCISETRAW) 1088COMPATIBLE_IOCTL(HCISETSCAN) 1089COMPATIBLE_IOCTL(HCISETAUTH) 1090COMPATIBLE_IOCTL(HCISETENCRYPT) 1091COMPATIBLE_IOCTL(HCISETPTYPE) 1092COMPATIBLE_IOCTL(HCISETLINKPOL) 1093COMPATIBLE_IOCTL(HCISETLINKMODE) 1094COMPATIBLE_IOCTL(HCISETACLMTU) 1095COMPATIBLE_IOCTL(HCISETSCOMTU) 1096COMPATIBLE_IOCTL(HCIBLOCKADDR) 1097COMPATIBLE_IOCTL(HCIUNBLOCKADDR) 1098COMPATIBLE_IOCTL(HCIINQUIRY) 1099COMPATIBLE_IOCTL(HCIUARTSETPROTO) 1100COMPATIBLE_IOCTL(HCIUARTGETPROTO) 1101COMPATIBLE_IOCTL(HCIUARTGETDEVICE) 1102COMPATIBLE_IOCTL(HCIUARTSETFLAGS) 1103COMPATIBLE_IOCTL(HCIUARTGETFLAGS) 1104COMPATIBLE_IOCTL(RFCOMMCREATEDEV) 1105COMPATIBLE_IOCTL(RFCOMMRELEASEDEV) 1106COMPATIBLE_IOCTL(RFCOMMGETDEVLIST) 1107COMPATIBLE_IOCTL(RFCOMMGETDEVINFO) 1108COMPATIBLE_IOCTL(RFCOMMSTEALDLC) 1109COMPATIBLE_IOCTL(BNEPCONNADD) 1110COMPATIBLE_IOCTL(BNEPCONNDEL) 1111COMPATIBLE_IOCTL(BNEPGETCONNLIST) 1112COMPATIBLE_IOCTL(BNEPGETCONNINFO) 1113COMPATIBLE_IOCTL(BNEPGETSUPPFEAT) 1114COMPATIBLE_IOCTL(CMTPCONNADD) 1115COMPATIBLE_IOCTL(CMTPCONNDEL) 1116COMPATIBLE_IOCTL(CMTPGETCONNLIST) 1117COMPATIBLE_IOCTL(CMTPGETCONNINFO) 1118COMPATIBLE_IOCTL(HIDPCONNADD) 1119COMPATIBLE_IOCTL(HIDPCONNDEL) 1120COMPATIBLE_IOCTL(HIDPGETCONNLIST) 1121COMPATIBLE_IOCTL(HIDPGETCONNINFO) 1122/* CAPI */ 1123COMPATIBLE_IOCTL(CAPI_REGISTER) 1124COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER) 1125COMPATIBLE_IOCTL(CAPI_GET_VERSION) 1126COMPATIBLE_IOCTL(CAPI_GET_SERIAL) 1127COMPATIBLE_IOCTL(CAPI_GET_PROFILE) 1128COMPATIBLE_IOCTL(CAPI_MANUFACTURER_CMD) 1129COMPATIBLE_IOCTL(CAPI_GET_ERRCODE) 1130COMPATIBLE_IOCTL(CAPI_INSTALLED) 1131COMPATIBLE_IOCTL(CAPI_GET_FLAGS) 1132COMPATIBLE_IOCTL(CAPI_SET_FLAGS) 1133COMPATIBLE_IOCTL(CAPI_CLR_FLAGS) 1134COMPATIBLE_IOCTL(CAPI_NCCI_OPENCOUNT) 1135COMPATIBLE_IOCTL(CAPI_NCCI_GETUNIT) 1136/* Siemens Gigaset */ 1137COMPATIBLE_IOCTL(GIGASET_REDIR) 1138COMPATIBLE_IOCTL(GIGASET_CONFIG) 1139COMPATIBLE_IOCTL(GIGASET_BRKCHARS) 1140COMPATIBLE_IOCTL(GIGASET_VERSION) 1141/* Misc. */ 1142COMPATIBLE_IOCTL(0x41545900) /* ATYIO_CLKR */ 1143COMPATIBLE_IOCTL(0x41545901) /* ATYIO_CLKW */ 1144COMPATIBLE_IOCTL(PCIIOC_CONTROLLER) 1145COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO) 1146COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM) 1147COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE) 1148/* hiddev */ 1149COMPATIBLE_IOCTL(HIDIOCGVERSION) 1150COMPATIBLE_IOCTL(HIDIOCAPPLICATION) 1151COMPATIBLE_IOCTL(HIDIOCGDEVINFO) 1152COMPATIBLE_IOCTL(HIDIOCGSTRING) 1153COMPATIBLE_IOCTL(HIDIOCINITREPORT) 1154COMPATIBLE_IOCTL(HIDIOCGREPORT) 1155COMPATIBLE_IOCTL(HIDIOCSREPORT) 1156COMPATIBLE_IOCTL(HIDIOCGREPORTINFO) 1157COMPATIBLE_IOCTL(HIDIOCGFIELDINFO) 1158COMPATIBLE_IOCTL(HIDIOCGUSAGE) 1159COMPATIBLE_IOCTL(HIDIOCSUSAGE) 1160COMPATIBLE_IOCTL(HIDIOCGUCODE) 1161COMPATIBLE_IOCTL(HIDIOCGFLAG) 1162COMPATIBLE_IOCTL(HIDIOCSFLAG) 1163COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX) 1164COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO) 1165/* dvb */ 1166COMPATIBLE_IOCTL(AUDIO_STOP) 1167COMPATIBLE_IOCTL(AUDIO_PLAY) 1168COMPATIBLE_IOCTL(AUDIO_PAUSE) 1169COMPATIBLE_IOCTL(AUDIO_CONTINUE) 1170COMPATIBLE_IOCTL(AUDIO_SELECT_SOURCE) 1171COMPATIBLE_IOCTL(AUDIO_SET_MUTE) 1172COMPATIBLE_IOCTL(AUDIO_SET_AV_SYNC) 1173COMPATIBLE_IOCTL(AUDIO_SET_BYPASS_MODE) 1174COMPATIBLE_IOCTL(AUDIO_CHANNEL_SELECT) 1175COMPATIBLE_IOCTL(AUDIO_GET_STATUS) 1176COMPATIBLE_IOCTL(AUDIO_GET_CAPABILITIES) 1177COMPATIBLE_IOCTL(AUDIO_CLEAR_BUFFER) 1178COMPATIBLE_IOCTL(AUDIO_SET_ID) 1179COMPATIBLE_IOCTL(AUDIO_SET_MIXER) 1180COMPATIBLE_IOCTL(AUDIO_SET_STREAMTYPE) 1181COMPATIBLE_IOCTL(DMX_START) 1182COMPATIBLE_IOCTL(DMX_STOP) 1183COMPATIBLE_IOCTL(DMX_SET_FILTER) 1184COMPATIBLE_IOCTL(DMX_SET_PES_FILTER) 1185COMPATIBLE_IOCTL(DMX_SET_BUFFER_SIZE) 1186COMPATIBLE_IOCTL(DMX_GET_PES_PIDS) 1187COMPATIBLE_IOCTL(DMX_GET_STC) 1188COMPATIBLE_IOCTL(DMX_REQBUFS) 1189COMPATIBLE_IOCTL(DMX_QUERYBUF) 1190COMPATIBLE_IOCTL(DMX_EXPBUF) 1191COMPATIBLE_IOCTL(DMX_QBUF) 1192COMPATIBLE_IOCTL(DMX_DQBUF) 1193COMPATIBLE_IOCTL(VIDEO_STOP) 1194COMPATIBLE_IOCTL(VIDEO_PLAY) 1195COMPATIBLE_IOCTL(VIDEO_FREEZE) 1196COMPATIBLE_IOCTL(VIDEO_CONTINUE) 1197COMPATIBLE_IOCTL(VIDEO_SELECT_SOURCE) 1198COMPATIBLE_IOCTL(VIDEO_SET_BLANK) 1199COMPATIBLE_IOCTL(VIDEO_GET_STATUS) 1200COMPATIBLE_IOCTL(VIDEO_SET_DISPLAY_FORMAT) 1201COMPATIBLE_IOCTL(VIDEO_FAST_FORWARD) 1202COMPATIBLE_IOCTL(VIDEO_SLOWMOTION) 1203COMPATIBLE_IOCTL(VIDEO_GET_CAPABILITIES) 1204COMPATIBLE_IOCTL(VIDEO_CLEAR_BUFFER) 1205COMPATIBLE_IOCTL(VIDEO_SET_STREAMTYPE) 1206COMPATIBLE_IOCTL(VIDEO_SET_FORMAT) 1207COMPATIBLE_IOCTL(VIDEO_GET_SIZE) 1208/* cec */ 1209COMPATIBLE_IOCTL(CEC_ADAP_G_CAPS) 1210COMPATIBLE_IOCTL(CEC_ADAP_G_LOG_ADDRS) 1211COMPATIBLE_IOCTL(CEC_ADAP_S_LOG_ADDRS) 1212COMPATIBLE_IOCTL(CEC_ADAP_G_PHYS_ADDR) 1213COMPATIBLE_IOCTL(CEC_ADAP_S_PHYS_ADDR) 1214COMPATIBLE_IOCTL(CEC_G_MODE) 1215COMPATIBLE_IOCTL(CEC_S_MODE) 1216COMPATIBLE_IOCTL(CEC_TRANSMIT) 1217COMPATIBLE_IOCTL(CEC_RECEIVE) 1218COMPATIBLE_IOCTL(CEC_DQEVENT) 1219 1220/* joystick */ 1221COMPATIBLE_IOCTL(JSIOCGVERSION) 1222COMPATIBLE_IOCTL(JSIOCGAXES) 1223COMPATIBLE_IOCTL(JSIOCGBUTTONS) 1224COMPATIBLE_IOCTL(JSIOCGNAME(0)) 1225 1226#ifdef TIOCGLTC 1227COMPATIBLE_IOCTL(TIOCGLTC) 1228COMPATIBLE_IOCTL(TIOCSLTC) 1229#endif 1230#ifdef TIOCSTART 1231/* 1232 * For these two we have definitions in ioctls.h and/or termios.h on 1233 * some architectures but no actual implemention. Some applications 1234 * like bash call them if they are defined in the headers, so we provide 1235 * entries here to avoid syslog message spew. 1236 */ 1237COMPATIBLE_IOCTL(TIOCSTART) 1238COMPATIBLE_IOCTL(TIOCSTOP) 1239#endif 1240 1241/* fat 'r' ioctls. These are handled by fat with ->compat_ioctl, 1242 but we don't want warnings on other file systems. So declare 1243 them as compatible here. */ 1244#define VFAT_IOCTL_READDIR_BOTH32 _IOR('r', 1, struct compat_dirent[2]) 1245#define VFAT_IOCTL_READDIR_SHORT32 _IOR('r', 2, struct compat_dirent[2]) 1246 1247IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32) 1248IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32) 1249 1250#ifdef CONFIG_SPARC 1251/* Sparc framebuffers, handled in sbusfb_compat_ioctl() */ 1252IGNORE_IOCTL(FBIOGTYPE) 1253IGNORE_IOCTL(FBIOSATTR) 1254IGNORE_IOCTL(FBIOGATTR) 1255IGNORE_IOCTL(FBIOSVIDEO) 1256IGNORE_IOCTL(FBIOGVIDEO) 1257IGNORE_IOCTL(FBIOSCURPOS) 1258IGNORE_IOCTL(FBIOGCURPOS) 1259IGNORE_IOCTL(FBIOGCURMAX) 1260IGNORE_IOCTL(FBIOPUTCMAP32) 1261IGNORE_IOCTL(FBIOGETCMAP32) 1262IGNORE_IOCTL(FBIOSCURSOR32) 1263IGNORE_IOCTL(FBIOGCURSOR32) 1264#endif 1265}; 1266 1267/* 1268 * Convert common ioctl arguments based on their command number 1269 * 1270 * Please do not add any code in here. Instead, implement 1271 * a compat_ioctl operation in the place that handleѕ the 1272 * ioctl for the native case. 1273 */ 1274static long do_ioctl_trans(unsigned int cmd, 1275 unsigned long arg, struct file *file) 1276{ 1277 void __user *argp = compat_ptr(arg); 1278 1279 switch (cmd) { 1280 case PPPIOCGIDLE32: 1281 return ppp_gidle(file, cmd, argp); 1282 case PPPIOCSCOMPRESS32: 1283 return ppp_scompress(file, cmd, argp); 1284 case PPPIOCSPASS32: 1285 case PPPIOCSACTIVE32: 1286 return ppp_sock_fprog_ioctl_trans(file, cmd, argp); 1287#ifdef CONFIG_BLOCK 1288 case SG_IO: 1289 return sg_ioctl_trans(file, cmd, argp); 1290 case SG_GET_REQUEST_TABLE: 1291 return sg_grt_trans(file, cmd, argp); 1292 case MTIOCGET32: 1293 case MTIOCPOS32: 1294 return mt_ioctl_trans(file, cmd, argp); 1295#endif 1296 /* Serial */ 1297 case TIOCGSERIAL: 1298 case TIOCSSERIAL: 1299 return serial_struct_ioctl(file, cmd, argp); 1300 /* Not implemented in the native kernel */ 1301 case RTC_IRQP_READ32: 1302 case RTC_IRQP_SET32: 1303 case RTC_EPOCH_READ32: 1304 case RTC_EPOCH_SET32: 1305 return rtc_ioctl(file, cmd, argp); 1306 1307 /* dvb */ 1308 case VIDEO_GET_EVENT: 1309 return do_video_get_event(file, cmd, argp); 1310 case VIDEO_STILLPICTURE: 1311 return do_video_stillpicture(file, cmd, argp); 1312 } 1313 1314 /* 1315 * These take an integer instead of a pointer as 'arg', 1316 * so we must not do a compat_ptr() translation. 1317 */ 1318 switch (cmd) { 1319 /* Big T */ 1320 case TCSBRKP: 1321 case TIOCMIWAIT: 1322 case TIOCSCTTY: 1323 /* RAID */ 1324 case HOT_REMOVE_DISK: 1325 case HOT_ADD_DISK: 1326 case SET_DISK_FAULTY: 1327 case SET_BITMAP_FILE: 1328 /* Big K */ 1329 case KDSIGACCEPT: 1330 case KIOCSOUND: 1331 case KDMKTONE: 1332 case KDSETMODE: 1333 case KDSKBMODE: 1334 case KDSKBMETA: 1335 case KDSKBLED: 1336 case KDSETLED: 1337 return vfs_ioctl(file, cmd, arg); 1338 } 1339 1340 return -ENOIOCTLCMD; 1341} 1342 1343static int compat_ioctl_check_table(unsigned int xcmd) 1344{ 1345 int i; 1346 const int max = ARRAY_SIZE(ioctl_pointer) - 1; 1347 1348 BUILD_BUG_ON(max >= (1 << 16)); 1349 1350 /* guess initial offset into table, assuming a 1351 normalized distribution */ 1352 i = ((xcmd >> 16) * max) >> 16; 1353 1354 /* do linear search up first, until greater or equal */ 1355 while (ioctl_pointer[i] < xcmd && i < max) 1356 i++; 1357 1358 /* then do linear search down */ 1359 while (ioctl_pointer[i] > xcmd && i > 0) 1360 i--; 1361 1362 return ioctl_pointer[i] == xcmd; 1363} 1364 1365COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, 1366 compat_ulong_t, arg32) 1367{ 1368 unsigned long arg = arg32; 1369 struct fd f = fdget(fd); 1370 int error = -EBADF; 1371 if (!f.file) 1372 goto out; 1373 1374 /* RED-PEN how should LSM module know it's handling 32bit? */ 1375 error = security_file_ioctl(f.file, cmd, arg); 1376 if (error) 1377 goto out_fput; 1378 1379 /* 1380 * To allow the compat_ioctl handlers to be self contained 1381 * we need to check the common ioctls here first. 1382 * Just handle them with the standard handlers below. 1383 */ 1384 switch (cmd) { 1385 case FIOCLEX: 1386 case FIONCLEX: 1387 case FIONBIO: 1388 case FIOASYNC: 1389 case FIOQSIZE: 1390 break; 1391 1392#if defined(CONFIG_IA64) || defined(CONFIG_X86_64) 1393 case FS_IOC_RESVSP_32: 1394 case FS_IOC_RESVSP64_32: 1395 error = compat_ioctl_preallocate(f.file, compat_ptr(arg)); 1396 goto out_fput; 1397#else 1398 case FS_IOC_RESVSP: 1399 case FS_IOC_RESVSP64: 1400 error = ioctl_preallocate(f.file, compat_ptr(arg)); 1401 goto out_fput; 1402#endif 1403 1404 case FICLONE: 1405 case FICLONERANGE: 1406 case FIDEDUPERANGE: 1407 case FS_IOC_FIEMAP: 1408 goto do_ioctl; 1409 1410 case FIBMAP: 1411 case FIGETBSZ: 1412 case FIONREAD: 1413 if (S_ISREG(file_inode(f.file)->i_mode)) 1414 break; 1415 /*FALL THROUGH*/ 1416 1417 default: 1418 if (f.file->f_op->compat_ioctl) { 1419 error = f.file->f_op->compat_ioctl(f.file, cmd, arg); 1420 if (error != -ENOIOCTLCMD) 1421 goto out_fput; 1422 } 1423 1424 if (!f.file->f_op->unlocked_ioctl) 1425 goto do_ioctl; 1426 break; 1427 } 1428 1429 if (compat_ioctl_check_table(XFORM(cmd))) 1430 goto found_handler; 1431 1432 error = do_ioctl_trans(cmd, arg, f.file); 1433 if (error == -ENOIOCTLCMD) 1434 error = -ENOTTY; 1435 1436 goto out_fput; 1437 1438 found_handler: 1439 arg = (unsigned long)compat_ptr(arg); 1440 do_ioctl: 1441 error = do_vfs_ioctl(f.file, fd, cmd, arg); 1442 out_fput: 1443 fdput(f); 1444 out: 1445 return error; 1446} 1447 1448static int __init init_sys32_ioctl_cmp(const void *p, const void *q) 1449{ 1450 unsigned int a, b; 1451 a = *(unsigned int *)p; 1452 b = *(unsigned int *)q; 1453 if (a > b) 1454 return 1; 1455 if (a < b) 1456 return -1; 1457 return 0; 1458} 1459 1460static int __init init_sys32_ioctl(void) 1461{ 1462 sort(ioctl_pointer, ARRAY_SIZE(ioctl_pointer), sizeof(*ioctl_pointer), 1463 init_sys32_ioctl_cmp, NULL); 1464 return 0; 1465} 1466__initcall(init_sys32_ioctl);