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 v4.13-rc3 1642 lines 47 kB view raw
1/* 2 * ioctl32.c: Conversion between 32bit and 64bit native ioctls. 3 * 4 * Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com) 5 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) 6 * Copyright (C) 2001,2002 Andi Kleen, SuSE Labs 7 * Copyright (C) 2003 Pavel Machek (pavel@ucw.cz) 8 * 9 * These routines maintain argument size conversion between 32bit and 64bit 10 * ioctls. 11 */ 12 13#include <linux/joystick.h> 14 15#include <linux/types.h> 16#include <linux/compat.h> 17#include <linux/kernel.h> 18#include <linux/capability.h> 19#include <linux/compiler.h> 20#include <linux/sched.h> 21#include <linux/smp.h> 22#include <linux/ioctl.h> 23#include <linux/if.h> 24#include <linux/if_bridge.h> 25#include <linux/raid/md_u.h> 26#include <linux/kd.h> 27#include <linux/route.h> 28#include <linux/in6.h> 29#include <linux/ipv6_route.h> 30#include <linux/skbuff.h> 31#include <linux/netlink.h> 32#include <linux/vt.h> 33#include <linux/falloc.h> 34#include <linux/fs.h> 35#include <linux/file.h> 36#include <linux/ppp_defs.h> 37#include <linux/ppp-ioctl.h> 38#include <linux/if_pppox.h> 39#include <linux/mtio.h> 40#include <linux/auto_fs.h> 41#include <linux/auto_fs4.h> 42#include <linux/tty.h> 43#include <linux/vt_kern.h> 44#include <linux/fb.h> 45#include <linux/videodev2.h> 46#include <linux/netdevice.h> 47#include <linux/raw.h> 48#include <linux/blkdev.h> 49#include <linux/elevator.h> 50#include <linux/rtc.h> 51#include <linux/pci.h> 52#include <linux/serial.h> 53#include <linux/if_tun.h> 54#include <linux/ctype.h> 55#include <linux/syscalls.h> 56#include <linux/i2c.h> 57#include <linux/i2c-dev.h> 58#include <linux/atalk.h> 59#include <linux/gfp.h> 60#include <linux/cec.h> 61 62#include "internal.h" 63 64#include <net/bluetooth/bluetooth.h> 65#include <net/bluetooth/hci_sock.h> 66#include <net/bluetooth/rfcomm.h> 67 68#include <linux/capi.h> 69#include <linux/gigaset_dev.h> 70 71#ifdef CONFIG_BLOCK 72#include <linux/cdrom.h> 73#include <linux/fd.h> 74#include <scsi/scsi.h> 75#include <scsi/scsi_ioctl.h> 76#include <scsi/sg.h> 77#endif 78 79#include <linux/uaccess.h> 80#include <linux/ethtool.h> 81#include <linux/mii.h> 82#include <linux/if_bonding.h> 83#include <linux/watchdog.h> 84 85#include <linux/soundcard.h> 86#include <linux/lp.h> 87#include <linux/ppdev.h> 88 89#include <linux/atm.h> 90#include <linux/atmarp.h> 91#include <linux/atmclip.h> 92#include <linux/atmdev.h> 93#include <linux/atmioc.h> 94#include <linux/atmlec.h> 95#include <linux/atmmpc.h> 96#include <linux/atmsvc.h> 97#include <linux/atm_tcp.h> 98#include <linux/sonet.h> 99#include <linux/atm_suni.h> 100 101#include <linux/usb.h> 102#include <linux/usbdevice_fs.h> 103#include <linux/nbd.h> 104#include <linux/random.h> 105#include <linux/filter.h> 106 107#include <linux/hiddev.h> 108 109#define __DVB_CORE__ 110#include <linux/dvb/audio.h> 111#include <linux/dvb/dmx.h> 112#include <linux/dvb/frontend.h> 113#include <linux/dvb/video.h> 114 115#include <linux/sort.h> 116 117#ifdef CONFIG_SPARC 118#include <asm/fbio.h> 119#endif 120 121#define convert_in_user(srcptr, dstptr) \ 122({ \ 123 typeof(*srcptr) val; \ 124 \ 125 get_user(val, srcptr) || put_user(val, dstptr); \ 126}) 127 128static int do_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 129{ 130 int err; 131 132 err = security_file_ioctl(file, cmd, arg); 133 if (err) 134 return err; 135 136 return vfs_ioctl(file, cmd, arg); 137} 138 139static int w_long(struct file *file, 140 unsigned int cmd, compat_ulong_t __user *argp) 141{ 142 int err; 143 unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp)); 144 145 if (valp == NULL) 146 return -EFAULT; 147 err = do_ioctl(file, cmd, (unsigned long)valp); 148 if (err) 149 return err; 150 if (convert_in_user(valp, argp)) 151 return -EFAULT; 152 return 0; 153} 154 155struct compat_video_event { 156 int32_t type; 157 compat_time_t timestamp; 158 union { 159 video_size_t size; 160 unsigned int frame_rate; 161 } u; 162}; 163 164static int do_video_get_event(struct file *file, 165 unsigned int cmd, struct compat_video_event __user *up) 166{ 167 struct video_event __user *kevent = 168 compat_alloc_user_space(sizeof(*kevent)); 169 int err; 170 171 if (kevent == NULL) 172 return -EFAULT; 173 174 err = do_ioctl(file, cmd, (unsigned long)kevent); 175 if (!err) { 176 err = convert_in_user(&kevent->type, &up->type); 177 err |= convert_in_user(&kevent->timestamp, &up->timestamp); 178 err |= convert_in_user(&kevent->u.size.w, &up->u.size.w); 179 err |= convert_in_user(&kevent->u.size.h, &up->u.size.h); 180 err |= convert_in_user(&kevent->u.size.aspect_ratio, 181 &up->u.size.aspect_ratio); 182 if (err) 183 err = -EFAULT; 184 } 185 186 return err; 187} 188 189struct compat_video_still_picture { 190 compat_uptr_t iFrame; 191 int32_t size; 192}; 193 194static int do_video_stillpicture(struct file *file, 195 unsigned int cmd, struct compat_video_still_picture __user *up) 196{ 197 struct video_still_picture __user *up_native; 198 compat_uptr_t fp; 199 int32_t size; 200 int err; 201 202 err = get_user(fp, &up->iFrame); 203 err |= get_user(size, &up->size); 204 if (err) 205 return -EFAULT; 206 207 up_native = 208 compat_alloc_user_space(sizeof(struct video_still_picture)); 209 210 err = put_user(compat_ptr(fp), &up_native->iFrame); 211 err |= put_user(size, &up_native->size); 212 if (err) 213 return -EFAULT; 214 215 err = do_ioctl(file, cmd, (unsigned long) up_native); 216 217 return err; 218} 219 220struct compat_video_spu_palette { 221 int length; 222 compat_uptr_t palette; 223}; 224 225static int do_video_set_spu_palette(struct file *file, 226 unsigned int cmd, struct compat_video_spu_palette __user *up) 227{ 228 struct video_spu_palette __user *up_native; 229 compat_uptr_t palp; 230 int length, err; 231 232 err = get_user(palp, &up->palette); 233 err |= get_user(length, &up->length); 234 if (err) 235 return -EFAULT; 236 237 up_native = compat_alloc_user_space(sizeof(struct video_spu_palette)); 238 err = put_user(compat_ptr(palp), &up_native->palette); 239 err |= put_user(length, &up_native->length); 240 if (err) 241 return -EFAULT; 242 243 err = do_ioctl(file, cmd, (unsigned long) up_native); 244 245 return err; 246} 247 248#ifdef CONFIG_BLOCK 249typedef struct sg_io_hdr32 { 250 compat_int_t interface_id; /* [i] 'S' for SCSI generic (required) */ 251 compat_int_t dxfer_direction; /* [i] data transfer direction */ 252 unsigned char cmd_len; /* [i] SCSI command length ( <= 16 bytes) */ 253 unsigned char mx_sb_len; /* [i] max length to write to sbp */ 254 unsigned short iovec_count; /* [i] 0 implies no scatter gather */ 255 compat_uint_t dxfer_len; /* [i] byte count of data transfer */ 256 compat_uint_t dxferp; /* [i], [*io] points to data transfer memory 257 or scatter gather list */ 258 compat_uptr_t cmdp; /* [i], [*i] points to command to perform */ 259 compat_uptr_t sbp; /* [i], [*o] points to sense_buffer memory */ 260 compat_uint_t timeout; /* [i] MAX_UINT->no timeout (unit: millisec) */ 261 compat_uint_t flags; /* [i] 0 -> default, see SG_FLAG... */ 262 compat_int_t pack_id; /* [i->o] unused internally (normally) */ 263 compat_uptr_t usr_ptr; /* [i->o] unused internally */ 264 unsigned char status; /* [o] scsi status */ 265 unsigned char masked_status; /* [o] shifted, masked scsi status */ 266 unsigned char msg_status; /* [o] messaging level data (optional) */ 267 unsigned char sb_len_wr; /* [o] byte count actually written to sbp */ 268 unsigned short host_status; /* [o] errors from host adapter */ 269 unsigned short driver_status; /* [o] errors from software driver */ 270 compat_int_t resid; /* [o] dxfer_len - actual_transferred */ 271 compat_uint_t duration; /* [o] time taken by cmd (unit: millisec) */ 272 compat_uint_t info; /* [o] auxiliary information */ 273} sg_io_hdr32_t; /* 64 bytes long (on sparc32) */ 274 275typedef struct sg_iovec32 { 276 compat_uint_t iov_base; 277 compat_uint_t iov_len; 278} sg_iovec32_t; 279 280static int sg_build_iovec(sg_io_hdr_t __user *sgio, void __user *dxferp, u16 iovec_count) 281{ 282 sg_iovec_t __user *iov = (sg_iovec_t __user *) (sgio + 1); 283 sg_iovec32_t __user *iov32 = dxferp; 284 int i; 285 286 for (i = 0; i < iovec_count; i++) { 287 u32 base, len; 288 289 if (get_user(base, &iov32[i].iov_base) || 290 get_user(len, &iov32[i].iov_len) || 291 put_user(compat_ptr(base), &iov[i].iov_base) || 292 put_user(len, &iov[i].iov_len)) 293 return -EFAULT; 294 } 295 296 if (put_user(iov, &sgio->dxferp)) 297 return -EFAULT; 298 return 0; 299} 300 301static int sg_ioctl_trans(struct file *file, unsigned int cmd, 302 sg_io_hdr32_t __user *sgio32) 303{ 304 sg_io_hdr_t __user *sgio; 305 u16 iovec_count; 306 u32 data; 307 void __user *dxferp; 308 int err; 309 int interface_id; 310 311 if (get_user(interface_id, &sgio32->interface_id)) 312 return -EFAULT; 313 if (interface_id != 'S') 314 return do_ioctl(file, cmd, (unsigned long)sgio32); 315 316 if (get_user(iovec_count, &sgio32->iovec_count)) 317 return -EFAULT; 318 319 { 320 void __user *top = compat_alloc_user_space(0); 321 void __user *new = compat_alloc_user_space(sizeof(sg_io_hdr_t) + 322 (iovec_count * sizeof(sg_iovec_t))); 323 if (new > top) 324 return -EINVAL; 325 326 sgio = new; 327 } 328 329 /* Ok, now construct. */ 330 if (copy_in_user(&sgio->interface_id, &sgio32->interface_id, 331 (2 * sizeof(int)) + 332 (2 * sizeof(unsigned char)) + 333 (1 * sizeof(unsigned short)) + 334 (1 * sizeof(unsigned int)))) 335 return -EFAULT; 336 337 if (get_user(data, &sgio32->dxferp)) 338 return -EFAULT; 339 dxferp = compat_ptr(data); 340 if (iovec_count) { 341 if (sg_build_iovec(sgio, dxferp, iovec_count)) 342 return -EFAULT; 343 } else { 344 if (put_user(dxferp, &sgio->dxferp)) 345 return -EFAULT; 346 } 347 348 { 349 unsigned char __user *cmdp; 350 unsigned char __user *sbp; 351 352 if (get_user(data, &sgio32->cmdp)) 353 return -EFAULT; 354 cmdp = compat_ptr(data); 355 356 if (get_user(data, &sgio32->sbp)) 357 return -EFAULT; 358 sbp = compat_ptr(data); 359 360 if (put_user(cmdp, &sgio->cmdp) || 361 put_user(sbp, &sgio->sbp)) 362 return -EFAULT; 363 } 364 365 if (copy_in_user(&sgio->timeout, &sgio32->timeout, 366 3 * sizeof(int))) 367 return -EFAULT; 368 369 if (get_user(data, &sgio32->usr_ptr)) 370 return -EFAULT; 371 if (put_user(compat_ptr(data), &sgio->usr_ptr)) 372 return -EFAULT; 373 374 err = do_ioctl(file, cmd, (unsigned long) sgio); 375 376 if (err >= 0) { 377 void __user *datap; 378 379 if (copy_in_user(&sgio32->pack_id, &sgio->pack_id, 380 sizeof(int)) || 381 get_user(datap, &sgio->usr_ptr) || 382 put_user((u32)(unsigned long)datap, 383 &sgio32->usr_ptr) || 384 copy_in_user(&sgio32->status, &sgio->status, 385 (4 * sizeof(unsigned char)) + 386 (2 * sizeof(unsigned short)) + 387 (3 * sizeof(int)))) 388 err = -EFAULT; 389 } 390 391 return err; 392} 393 394struct compat_sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */ 395 char req_state; 396 char orphan; 397 char sg_io_owned; 398 char problem; 399 int pack_id; 400 compat_uptr_t usr_ptr; 401 unsigned int duration; 402 int unused; 403}; 404 405static int sg_grt_trans(struct file *file, 406 unsigned int cmd, struct compat_sg_req_info __user *o) 407{ 408 int err, i; 409 sg_req_info_t __user *r; 410 r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE); 411 err = do_ioctl(file, cmd, (unsigned long)r); 412 if (err < 0) 413 return err; 414 for (i = 0; i < SG_MAX_QUEUE; i++) { 415 void __user *ptr; 416 int d; 417 418 if (copy_in_user(o + i, r + i, offsetof(sg_req_info_t, usr_ptr)) || 419 get_user(ptr, &r[i].usr_ptr) || 420 get_user(d, &r[i].duration) || 421 put_user((u32)(unsigned long)(ptr), &o[i].usr_ptr) || 422 put_user(d, &o[i].duration)) 423 return -EFAULT; 424 } 425 return err; 426} 427#endif /* CONFIG_BLOCK */ 428 429struct sock_fprog32 { 430 unsigned short len; 431 compat_caddr_t filter; 432}; 433 434#define PPPIOCSPASS32 _IOW('t', 71, struct sock_fprog32) 435#define PPPIOCSACTIVE32 _IOW('t', 70, struct sock_fprog32) 436 437static int ppp_sock_fprog_ioctl_trans(struct file *file, 438 unsigned int cmd, struct sock_fprog32 __user *u_fprog32) 439{ 440 struct sock_fprog __user *u_fprog64 = compat_alloc_user_space(sizeof(struct sock_fprog)); 441 void __user *fptr64; 442 u32 fptr32; 443 u16 flen; 444 445 if (get_user(flen, &u_fprog32->len) || 446 get_user(fptr32, &u_fprog32->filter)) 447 return -EFAULT; 448 449 fptr64 = compat_ptr(fptr32); 450 451 if (put_user(flen, &u_fprog64->len) || 452 put_user(fptr64, &u_fprog64->filter)) 453 return -EFAULT; 454 455 if (cmd == PPPIOCSPASS32) 456 cmd = PPPIOCSPASS; 457 else 458 cmd = PPPIOCSACTIVE; 459 460 return do_ioctl(file, cmd, (unsigned long) u_fprog64); 461} 462 463struct ppp_option_data32 { 464 compat_caddr_t ptr; 465 u32 length; 466 compat_int_t transmit; 467}; 468#define PPPIOCSCOMPRESS32 _IOW('t', 77, struct ppp_option_data32) 469 470struct ppp_idle32 { 471 compat_time_t xmit_idle; 472 compat_time_t recv_idle; 473}; 474#define PPPIOCGIDLE32 _IOR('t', 63, struct ppp_idle32) 475 476static int ppp_gidle(struct file *file, unsigned int cmd, 477 struct ppp_idle32 __user *idle32) 478{ 479 struct ppp_idle __user *idle; 480 __kernel_time_t xmit, recv; 481 int err; 482 483 idle = compat_alloc_user_space(sizeof(*idle)); 484 485 err = do_ioctl(file, PPPIOCGIDLE, (unsigned long) idle); 486 487 if (!err) { 488 if (get_user(xmit, &idle->xmit_idle) || 489 get_user(recv, &idle->recv_idle) || 490 put_user(xmit, &idle32->xmit_idle) || 491 put_user(recv, &idle32->recv_idle)) 492 err = -EFAULT; 493 } 494 return err; 495} 496 497static int ppp_scompress(struct file *file, unsigned int cmd, 498 struct ppp_option_data32 __user *odata32) 499{ 500 struct ppp_option_data __user *odata; 501 __u32 data; 502 void __user *datap; 503 504 odata = compat_alloc_user_space(sizeof(*odata)); 505 506 if (get_user(data, &odata32->ptr)) 507 return -EFAULT; 508 509 datap = compat_ptr(data); 510 if (put_user(datap, &odata->ptr)) 511 return -EFAULT; 512 513 if (copy_in_user(&odata->length, &odata32->length, 514 sizeof(__u32) + sizeof(int))) 515 return -EFAULT; 516 517 return do_ioctl(file, PPPIOCSCOMPRESS, (unsigned long) odata); 518} 519 520#ifdef CONFIG_BLOCK 521struct mtget32 { 522 compat_long_t mt_type; 523 compat_long_t mt_resid; 524 compat_long_t mt_dsreg; 525 compat_long_t mt_gstat; 526 compat_long_t mt_erreg; 527 compat_daddr_t mt_fileno; 528 compat_daddr_t mt_blkno; 529}; 530#define MTIOCGET32 _IOR('m', 2, struct mtget32) 531 532struct mtpos32 { 533 compat_long_t mt_blkno; 534}; 535#define MTIOCPOS32 _IOR('m', 3, struct mtpos32) 536 537static int mt_ioctl_trans(struct file *file, 538 unsigned int cmd, void __user *argp) 539{ 540 /* NULL initialization to make gcc shut up */ 541 struct mtget __user *get = NULL; 542 struct mtget32 __user *umget32; 543 struct mtpos __user *pos = NULL; 544 struct mtpos32 __user *upos32; 545 unsigned long kcmd; 546 void *karg; 547 int err = 0; 548 549 switch(cmd) { 550 case MTIOCPOS32: 551 kcmd = MTIOCPOS; 552 pos = compat_alloc_user_space(sizeof(*pos)); 553 karg = pos; 554 break; 555 default: /* MTIOCGET32 */ 556 kcmd = MTIOCGET; 557 get = compat_alloc_user_space(sizeof(*get)); 558 karg = get; 559 break; 560 } 561 if (karg == NULL) 562 return -EFAULT; 563 err = do_ioctl(file, kcmd, (unsigned long)karg); 564 if (err) 565 return err; 566 switch (cmd) { 567 case MTIOCPOS32: 568 upos32 = argp; 569 err = convert_in_user(&pos->mt_blkno, &upos32->mt_blkno); 570 break; 571 case MTIOCGET32: 572 umget32 = argp; 573 err = convert_in_user(&get->mt_type, &umget32->mt_type); 574 err |= convert_in_user(&get->mt_resid, &umget32->mt_resid); 575 err |= convert_in_user(&get->mt_dsreg, &umget32->mt_dsreg); 576 err |= convert_in_user(&get->mt_gstat, &umget32->mt_gstat); 577 err |= convert_in_user(&get->mt_erreg, &umget32->mt_erreg); 578 err |= convert_in_user(&get->mt_fileno, &umget32->mt_fileno); 579 err |= convert_in_user(&get->mt_blkno, &umget32->mt_blkno); 580 break; 581 } 582 return err ? -EFAULT: 0; 583} 584 585#endif /* CONFIG_BLOCK */ 586 587/* Bluetooth ioctls */ 588#define HCIUARTSETPROTO _IOW('U', 200, int) 589#define HCIUARTGETPROTO _IOR('U', 201, int) 590#define HCIUARTGETDEVICE _IOR('U', 202, int) 591#define HCIUARTSETFLAGS _IOW('U', 203, int) 592#define HCIUARTGETFLAGS _IOR('U', 204, int) 593 594#define BNEPCONNADD _IOW('B', 200, int) 595#define BNEPCONNDEL _IOW('B', 201, int) 596#define BNEPGETCONNLIST _IOR('B', 210, int) 597#define BNEPGETCONNINFO _IOR('B', 211, int) 598#define BNEPGETSUPPFEAT _IOR('B', 212, int) 599 600#define CMTPCONNADD _IOW('C', 200, int) 601#define CMTPCONNDEL _IOW('C', 201, int) 602#define CMTPGETCONNLIST _IOR('C', 210, int) 603#define CMTPGETCONNINFO _IOR('C', 211, int) 604 605#define HIDPCONNADD _IOW('H', 200, int) 606#define HIDPCONNDEL _IOW('H', 201, int) 607#define HIDPGETCONNLIST _IOR('H', 210, int) 608#define HIDPGETCONNINFO _IOR('H', 211, int) 609 610 611struct serial_struct32 { 612 compat_int_t type; 613 compat_int_t line; 614 compat_uint_t port; 615 compat_int_t irq; 616 compat_int_t flags; 617 compat_int_t xmit_fifo_size; 618 compat_int_t custom_divisor; 619 compat_int_t baud_base; 620 unsigned short close_delay; 621 char io_type; 622 char reserved_char[1]; 623 compat_int_t hub6; 624 unsigned short closing_wait; /* time to wait before closing */ 625 unsigned short closing_wait2; /* no longer used... */ 626 compat_uint_t iomem_base; 627 unsigned short iomem_reg_shift; 628 unsigned int port_high; 629 /* compat_ulong_t iomap_base FIXME */ 630 compat_int_t reserved[1]; 631}; 632 633static int serial_struct_ioctl(struct file *file, 634 unsigned cmd, struct serial_struct32 __user *ss32) 635{ 636 typedef struct serial_struct32 SS32; 637 int err; 638 struct serial_struct __user *ss = compat_alloc_user_space(sizeof(*ss)); 639 __u32 udata; 640 unsigned int base; 641 unsigned char *iomem_base; 642 643 if (ss == NULL) 644 return -EFAULT; 645 if (cmd == TIOCSSERIAL) { 646 if (copy_in_user(ss, ss32, offsetof(SS32, iomem_base)) || 647 get_user(udata, &ss32->iomem_base)) 648 return -EFAULT; 649 iomem_base = compat_ptr(udata); 650 if (put_user(iomem_base, &ss->iomem_base) || 651 convert_in_user(&ss32->iomem_reg_shift, 652 &ss->iomem_reg_shift) || 653 convert_in_user(&ss32->port_high, &ss->port_high) || 654 put_user(0UL, &ss->iomap_base)) 655 return -EFAULT; 656 } 657 err = do_ioctl(file, cmd, (unsigned long)ss); 658 if (cmd == TIOCGSERIAL && err >= 0) { 659 if (copy_in_user(ss32, ss, offsetof(SS32, iomem_base)) || 660 get_user(iomem_base, &ss->iomem_base)) 661 return -EFAULT; 662 base = (unsigned long)iomem_base >> 32 ? 663 0xffffffff : (unsigned)(unsigned long)iomem_base; 664 if (put_user(base, &ss32->iomem_base) || 665 convert_in_user(&ss->iomem_reg_shift, 666 &ss32->iomem_reg_shift) || 667 convert_in_user(&ss->port_high, &ss32->port_high)) 668 return -EFAULT; 669 } 670 return err; 671} 672 673/* 674 * I2C layer ioctls 675 */ 676 677struct i2c_msg32 { 678 u16 addr; 679 u16 flags; 680 u16 len; 681 compat_caddr_t buf; 682}; 683 684struct i2c_rdwr_ioctl_data32 { 685 compat_caddr_t msgs; /* struct i2c_msg __user *msgs */ 686 u32 nmsgs; 687}; 688 689struct i2c_smbus_ioctl_data32 { 690 u8 read_write; 691 u8 command; 692 u32 size; 693 compat_caddr_t data; /* union i2c_smbus_data *data */ 694}; 695 696struct i2c_rdwr_aligned { 697 struct i2c_rdwr_ioctl_data cmd; 698 struct i2c_msg msgs[0]; 699}; 700 701static int do_i2c_rdwr_ioctl(struct file *file, 702 unsigned int cmd, struct i2c_rdwr_ioctl_data32 __user *udata) 703{ 704 struct i2c_rdwr_aligned __user *tdata; 705 struct i2c_msg __user *tmsgs; 706 struct i2c_msg32 __user *umsgs; 707 compat_caddr_t datap; 708 u32 nmsgs; 709 int i; 710 711 if (get_user(nmsgs, &udata->nmsgs)) 712 return -EFAULT; 713 if (nmsgs > I2C_RDWR_IOCTL_MAX_MSGS) 714 return -EINVAL; 715 716 if (get_user(datap, &udata->msgs)) 717 return -EFAULT; 718 umsgs = compat_ptr(datap); 719 720 tdata = compat_alloc_user_space(sizeof(*tdata) + 721 nmsgs * sizeof(struct i2c_msg)); 722 tmsgs = &tdata->msgs[0]; 723 724 if (put_user(nmsgs, &tdata->cmd.nmsgs) || 725 put_user(tmsgs, &tdata->cmd.msgs)) 726 return -EFAULT; 727 728 for (i = 0; i < nmsgs; i++) { 729 if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16))) 730 return -EFAULT; 731 if (get_user(datap, &umsgs[i].buf) || 732 put_user(compat_ptr(datap), &tmsgs[i].buf)) 733 return -EFAULT; 734 } 735 return do_ioctl(file, cmd, (unsigned long)tdata); 736} 737 738static int do_i2c_smbus_ioctl(struct file *file, 739 unsigned int cmd, struct i2c_smbus_ioctl_data32 __user *udata) 740{ 741 struct i2c_smbus_ioctl_data __user *tdata; 742 union { 743 /* beginnings of those have identical layouts */ 744 struct i2c_smbus_ioctl_data32 data32; 745 struct i2c_smbus_ioctl_data data; 746 } v; 747 748 tdata = compat_alloc_user_space(sizeof(*tdata)); 749 if (tdata == NULL) 750 return -ENOMEM; 751 752 memset(&v, 0, sizeof(v)); 753 if (copy_from_user(&v.data32, udata, sizeof(v.data32))) 754 return -EFAULT; 755 v.data.data = compat_ptr(v.data32.data); 756 757 if (copy_to_user(tdata, &v.data, sizeof(v.data))) 758 return -EFAULT; 759 760 return do_ioctl(file, cmd, (unsigned long)tdata); 761} 762 763#define RTC_IRQP_READ32 _IOR('p', 0x0b, compat_ulong_t) 764#define RTC_IRQP_SET32 _IOW('p', 0x0c, compat_ulong_t) 765#define RTC_EPOCH_READ32 _IOR('p', 0x0d, compat_ulong_t) 766#define RTC_EPOCH_SET32 _IOW('p', 0x0e, compat_ulong_t) 767 768static int rtc_ioctl(struct file *file, 769 unsigned cmd, void __user *argp) 770{ 771 unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp)); 772 int ret; 773 774 if (valp == NULL) 775 return -EFAULT; 776 switch (cmd) { 777 case RTC_IRQP_READ32: 778 case RTC_EPOCH_READ32: 779 ret = do_ioctl(file, (cmd == RTC_IRQP_READ32) ? 780 RTC_IRQP_READ : RTC_EPOCH_READ, 781 (unsigned long)valp); 782 if (ret) 783 return ret; 784 return convert_in_user(valp, (unsigned int __user *)argp); 785 case RTC_IRQP_SET32: 786 return do_ioctl(file, RTC_IRQP_SET, (unsigned long)argp); 787 case RTC_EPOCH_SET32: 788 return do_ioctl(file, RTC_EPOCH_SET, (unsigned long)argp); 789 } 790 791 return -ENOIOCTLCMD; 792} 793 794/* on ia32 l_start is on a 32-bit boundary */ 795#if defined(CONFIG_IA64) || defined(CONFIG_X86_64) 796struct space_resv_32 { 797 __s16 l_type; 798 __s16 l_whence; 799 __s64 l_start __attribute__((packed)); 800 /* len == 0 means until end of file */ 801 __s64 l_len __attribute__((packed)); 802 __s32 l_sysid; 803 __u32 l_pid; 804 __s32 l_pad[4]; /* reserve area */ 805}; 806 807#define FS_IOC_RESVSP_32 _IOW ('X', 40, struct space_resv_32) 808#define FS_IOC_RESVSP64_32 _IOW ('X', 42, struct space_resv_32) 809 810/* just account for different alignment */ 811static int compat_ioctl_preallocate(struct file *file, 812 struct space_resv_32 __user *p32) 813{ 814 struct space_resv __user *p = compat_alloc_user_space(sizeof(*p)); 815 816 if (copy_in_user(&p->l_type, &p32->l_type, sizeof(s16)) || 817 copy_in_user(&p->l_whence, &p32->l_whence, sizeof(s16)) || 818 copy_in_user(&p->l_start, &p32->l_start, sizeof(s64)) || 819 copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) || 820 copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) || 821 copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) || 822 copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32))) 823 return -EFAULT; 824 825 return ioctl_preallocate(file, p); 826} 827#endif 828 829/* 830 * simple reversible transform to make our table more evenly 831 * distributed after sorting. 832 */ 833#define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff) 834 835#define COMPATIBLE_IOCTL(cmd) XFORM((u32)cmd), 836/* ioctl should not be warned about even if it's not implemented. 837 Valid reasons to use this: 838 - It is implemented with ->compat_ioctl on some device, but programs 839 call it on others too. 840 - The ioctl is not implemented in the native kernel, but programs 841 call it commonly anyways. 842 Most other reasons are not valid. */ 843#define IGNORE_IOCTL(cmd) COMPATIBLE_IOCTL(cmd) 844 845static unsigned int ioctl_pointer[] = { 846/* compatible ioctls first */ 847COMPATIBLE_IOCTL(0x4B50) /* KDGHWCLK - not in the kernel, but don't complain */ 848COMPATIBLE_IOCTL(0x4B51) /* KDSHWCLK - not in the kernel, but don't complain */ 849 850/* Big T */ 851COMPATIBLE_IOCTL(TCGETA) 852COMPATIBLE_IOCTL(TCSETA) 853COMPATIBLE_IOCTL(TCSETAW) 854COMPATIBLE_IOCTL(TCSETAF) 855COMPATIBLE_IOCTL(TCSBRK) 856COMPATIBLE_IOCTL(TCXONC) 857COMPATIBLE_IOCTL(TCFLSH) 858COMPATIBLE_IOCTL(TCGETS) 859COMPATIBLE_IOCTL(TCSETS) 860COMPATIBLE_IOCTL(TCSETSW) 861COMPATIBLE_IOCTL(TCSETSF) 862COMPATIBLE_IOCTL(TIOCLINUX) 863COMPATIBLE_IOCTL(TIOCSBRK) 864COMPATIBLE_IOCTL(TIOCGDEV) 865COMPATIBLE_IOCTL(TIOCCBRK) 866COMPATIBLE_IOCTL(TIOCGSID) 867COMPATIBLE_IOCTL(TIOCGICOUNT) 868COMPATIBLE_IOCTL(TIOCGEXCL) 869/* Little t */ 870COMPATIBLE_IOCTL(TIOCGETD) 871COMPATIBLE_IOCTL(TIOCSETD) 872COMPATIBLE_IOCTL(TIOCEXCL) 873COMPATIBLE_IOCTL(TIOCNXCL) 874COMPATIBLE_IOCTL(TIOCCONS) 875COMPATIBLE_IOCTL(TIOCGSOFTCAR) 876COMPATIBLE_IOCTL(TIOCSSOFTCAR) 877COMPATIBLE_IOCTL(TIOCSWINSZ) 878COMPATIBLE_IOCTL(TIOCGWINSZ) 879COMPATIBLE_IOCTL(TIOCMGET) 880COMPATIBLE_IOCTL(TIOCMBIC) 881COMPATIBLE_IOCTL(TIOCMBIS) 882COMPATIBLE_IOCTL(TIOCMSET) 883COMPATIBLE_IOCTL(TIOCNOTTY) 884COMPATIBLE_IOCTL(TIOCSTI) 885COMPATIBLE_IOCTL(TIOCOUTQ) 886COMPATIBLE_IOCTL(TIOCSPGRP) 887COMPATIBLE_IOCTL(TIOCGPGRP) 888COMPATIBLE_IOCTL(TIOCSERGETLSR) 889#ifdef TIOCSRS485 890COMPATIBLE_IOCTL(TIOCSRS485) 891#endif 892#ifdef TIOCGRS485 893COMPATIBLE_IOCTL(TIOCGRS485) 894#endif 895#ifdef TCGETS2 896COMPATIBLE_IOCTL(TCGETS2) 897COMPATIBLE_IOCTL(TCSETS2) 898COMPATIBLE_IOCTL(TCSETSW2) 899COMPATIBLE_IOCTL(TCSETSF2) 900#endif 901/* Little f */ 902COMPATIBLE_IOCTL(FIOCLEX) 903COMPATIBLE_IOCTL(FIONCLEX) 904COMPATIBLE_IOCTL(FIOASYNC) 905COMPATIBLE_IOCTL(FIONBIO) 906COMPATIBLE_IOCTL(FIONREAD) /* This is also TIOCINQ */ 907COMPATIBLE_IOCTL(FS_IOC_FIEMAP) 908/* 0x00 */ 909COMPATIBLE_IOCTL(FIBMAP) 910COMPATIBLE_IOCTL(FIGETBSZ) 911/* 'X' - originally XFS but some now in the VFS */ 912COMPATIBLE_IOCTL(FIFREEZE) 913COMPATIBLE_IOCTL(FITHAW) 914COMPATIBLE_IOCTL(FITRIM) 915COMPATIBLE_IOCTL(KDGETKEYCODE) 916COMPATIBLE_IOCTL(KDSETKEYCODE) 917COMPATIBLE_IOCTL(KDGKBTYPE) 918COMPATIBLE_IOCTL(KDGETMODE) 919COMPATIBLE_IOCTL(KDGKBMODE) 920COMPATIBLE_IOCTL(KDGKBMETA) 921COMPATIBLE_IOCTL(KDGKBENT) 922COMPATIBLE_IOCTL(KDSKBENT) 923COMPATIBLE_IOCTL(KDGKBSENT) 924COMPATIBLE_IOCTL(KDSKBSENT) 925COMPATIBLE_IOCTL(KDGKBDIACR) 926COMPATIBLE_IOCTL(KDSKBDIACR) 927COMPATIBLE_IOCTL(KDGKBDIACRUC) 928COMPATIBLE_IOCTL(KDSKBDIACRUC) 929COMPATIBLE_IOCTL(KDKBDREP) 930COMPATIBLE_IOCTL(KDGKBLED) 931COMPATIBLE_IOCTL(KDGETLED) 932#ifdef CONFIG_BLOCK 933/* Big S */ 934COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN) 935COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK) 936COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK) 937COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY) 938COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER) 939COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND) 940COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST) 941COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI) 942#endif 943/* Big V (don't complain on serial console) */ 944IGNORE_IOCTL(VT_OPENQRY) 945IGNORE_IOCTL(VT_GETMODE) 946/* Little p (/dev/rtc, /dev/envctrl, etc.) */ 947COMPATIBLE_IOCTL(RTC_AIE_ON) 948COMPATIBLE_IOCTL(RTC_AIE_OFF) 949COMPATIBLE_IOCTL(RTC_UIE_ON) 950COMPATIBLE_IOCTL(RTC_UIE_OFF) 951COMPATIBLE_IOCTL(RTC_PIE_ON) 952COMPATIBLE_IOCTL(RTC_PIE_OFF) 953COMPATIBLE_IOCTL(RTC_WIE_ON) 954COMPATIBLE_IOCTL(RTC_WIE_OFF) 955COMPATIBLE_IOCTL(RTC_ALM_SET) 956COMPATIBLE_IOCTL(RTC_ALM_READ) 957COMPATIBLE_IOCTL(RTC_RD_TIME) 958COMPATIBLE_IOCTL(RTC_SET_TIME) 959COMPATIBLE_IOCTL(RTC_WKALM_SET) 960COMPATIBLE_IOCTL(RTC_WKALM_RD) 961/* 962 * These two are only for the sbus rtc driver, but 963 * hwclock tries them on every rtc device first when 964 * running on sparc. On other architectures the entries 965 * are useless but harmless. 966 */ 967COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */ 968COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */ 969/* Little m */ 970COMPATIBLE_IOCTL(MTIOCTOP) 971/* Socket level stuff */ 972COMPATIBLE_IOCTL(FIOQSIZE) 973#ifdef CONFIG_BLOCK 974/* md calls this on random blockdevs */ 975IGNORE_IOCTL(RAID_VERSION) 976/* qemu/qemu-img might call these two on plain files for probing */ 977IGNORE_IOCTL(CDROM_DRIVE_STATUS) 978IGNORE_IOCTL(FDGETPRM32) 979/* SG stuff */ 980COMPATIBLE_IOCTL(SG_SET_TIMEOUT) 981COMPATIBLE_IOCTL(SG_GET_TIMEOUT) 982COMPATIBLE_IOCTL(SG_EMULATED_HOST) 983COMPATIBLE_IOCTL(SG_GET_TRANSFORM) 984COMPATIBLE_IOCTL(SG_SET_RESERVED_SIZE) 985COMPATIBLE_IOCTL(SG_GET_RESERVED_SIZE) 986COMPATIBLE_IOCTL(SG_GET_SCSI_ID) 987COMPATIBLE_IOCTL(SG_SET_FORCE_LOW_DMA) 988COMPATIBLE_IOCTL(SG_GET_LOW_DMA) 989COMPATIBLE_IOCTL(SG_SET_FORCE_PACK_ID) 990COMPATIBLE_IOCTL(SG_GET_PACK_ID) 991COMPATIBLE_IOCTL(SG_GET_NUM_WAITING) 992COMPATIBLE_IOCTL(SG_SET_DEBUG) 993COMPATIBLE_IOCTL(SG_GET_SG_TABLESIZE) 994COMPATIBLE_IOCTL(SG_GET_COMMAND_Q) 995COMPATIBLE_IOCTL(SG_SET_COMMAND_Q) 996COMPATIBLE_IOCTL(SG_GET_VERSION_NUM) 997COMPATIBLE_IOCTL(SG_NEXT_CMD_LEN) 998COMPATIBLE_IOCTL(SG_SCSI_RESET) 999COMPATIBLE_IOCTL(SG_GET_REQUEST_TABLE) 1000COMPATIBLE_IOCTL(SG_SET_KEEP_ORPHAN) 1001COMPATIBLE_IOCTL(SG_GET_KEEP_ORPHAN) 1002#endif 1003/* PPP stuff */ 1004COMPATIBLE_IOCTL(PPPIOCGFLAGS) 1005COMPATIBLE_IOCTL(PPPIOCSFLAGS) 1006COMPATIBLE_IOCTL(PPPIOCGASYNCMAP) 1007COMPATIBLE_IOCTL(PPPIOCSASYNCMAP) 1008COMPATIBLE_IOCTL(PPPIOCGUNIT) 1009COMPATIBLE_IOCTL(PPPIOCGRASYNCMAP) 1010COMPATIBLE_IOCTL(PPPIOCSRASYNCMAP) 1011COMPATIBLE_IOCTL(PPPIOCGMRU) 1012COMPATIBLE_IOCTL(PPPIOCSMRU) 1013COMPATIBLE_IOCTL(PPPIOCSMAXCID) 1014COMPATIBLE_IOCTL(PPPIOCGXASYNCMAP) 1015COMPATIBLE_IOCTL(PPPIOCSXASYNCMAP) 1016COMPATIBLE_IOCTL(PPPIOCXFERUNIT) 1017/* PPPIOCSCOMPRESS is translated */ 1018COMPATIBLE_IOCTL(PPPIOCGNPMODE) 1019COMPATIBLE_IOCTL(PPPIOCSNPMODE) 1020COMPATIBLE_IOCTL(PPPIOCGDEBUG) 1021COMPATIBLE_IOCTL(PPPIOCSDEBUG) 1022/* PPPIOCSPASS is translated */ 1023/* PPPIOCSACTIVE is translated */ 1024/* PPPIOCGIDLE is translated */ 1025COMPATIBLE_IOCTL(PPPIOCNEWUNIT) 1026COMPATIBLE_IOCTL(PPPIOCATTACH) 1027COMPATIBLE_IOCTL(PPPIOCDETACH) 1028COMPATIBLE_IOCTL(PPPIOCSMRRU) 1029COMPATIBLE_IOCTL(PPPIOCCONNECT) 1030COMPATIBLE_IOCTL(PPPIOCDISCONN) 1031COMPATIBLE_IOCTL(PPPIOCATTCHAN) 1032COMPATIBLE_IOCTL(PPPIOCGCHAN) 1033COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS) 1034/* PPPOX */ 1035COMPATIBLE_IOCTL(PPPOEIOCSFWD) 1036COMPATIBLE_IOCTL(PPPOEIOCDFWD) 1037/* Big A */ 1038/* sparc only */ 1039/* Big Q for sound/OSS */ 1040COMPATIBLE_IOCTL(SNDCTL_SEQ_RESET) 1041COMPATIBLE_IOCTL(SNDCTL_SEQ_SYNC) 1042COMPATIBLE_IOCTL(SNDCTL_SYNTH_INFO) 1043COMPATIBLE_IOCTL(SNDCTL_SEQ_CTRLRATE) 1044COMPATIBLE_IOCTL(SNDCTL_SEQ_GETOUTCOUNT) 1045COMPATIBLE_IOCTL(SNDCTL_SEQ_GETINCOUNT) 1046COMPATIBLE_IOCTL(SNDCTL_SEQ_PERCMODE) 1047COMPATIBLE_IOCTL(SNDCTL_FM_LOAD_INSTR) 1048COMPATIBLE_IOCTL(SNDCTL_SEQ_TESTMIDI) 1049COMPATIBLE_IOCTL(SNDCTL_SEQ_RESETSAMPLES) 1050COMPATIBLE_IOCTL(SNDCTL_SEQ_NRSYNTHS) 1051COMPATIBLE_IOCTL(SNDCTL_SEQ_NRMIDIS) 1052COMPATIBLE_IOCTL(SNDCTL_MIDI_INFO) 1053COMPATIBLE_IOCTL(SNDCTL_SEQ_THRESHOLD) 1054COMPATIBLE_IOCTL(SNDCTL_SYNTH_MEMAVL) 1055COMPATIBLE_IOCTL(SNDCTL_FM_4OP_ENABLE) 1056COMPATIBLE_IOCTL(SNDCTL_SEQ_PANIC) 1057COMPATIBLE_IOCTL(SNDCTL_SEQ_OUTOFBAND) 1058COMPATIBLE_IOCTL(SNDCTL_SEQ_GETTIME) 1059COMPATIBLE_IOCTL(SNDCTL_SYNTH_ID) 1060COMPATIBLE_IOCTL(SNDCTL_SYNTH_CONTROL) 1061COMPATIBLE_IOCTL(SNDCTL_SYNTH_REMOVESAMPLE) 1062/* Big T for sound/OSS */ 1063COMPATIBLE_IOCTL(SNDCTL_TMR_TIMEBASE) 1064COMPATIBLE_IOCTL(SNDCTL_TMR_START) 1065COMPATIBLE_IOCTL(SNDCTL_TMR_STOP) 1066COMPATIBLE_IOCTL(SNDCTL_TMR_CONTINUE) 1067COMPATIBLE_IOCTL(SNDCTL_TMR_TEMPO) 1068COMPATIBLE_IOCTL(SNDCTL_TMR_SOURCE) 1069COMPATIBLE_IOCTL(SNDCTL_TMR_METRONOME) 1070COMPATIBLE_IOCTL(SNDCTL_TMR_SELECT) 1071/* Little m for sound/OSS */ 1072COMPATIBLE_IOCTL(SNDCTL_MIDI_PRETIME) 1073COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUMODE) 1074COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUCMD) 1075/* Big P for sound/OSS */ 1076COMPATIBLE_IOCTL(SNDCTL_DSP_RESET) 1077COMPATIBLE_IOCTL(SNDCTL_DSP_SYNC) 1078COMPATIBLE_IOCTL(SNDCTL_DSP_SPEED) 1079COMPATIBLE_IOCTL(SNDCTL_DSP_STEREO) 1080COMPATIBLE_IOCTL(SNDCTL_DSP_GETBLKSIZE) 1081COMPATIBLE_IOCTL(SNDCTL_DSP_CHANNELS) 1082COMPATIBLE_IOCTL(SOUND_PCM_WRITE_FILTER) 1083COMPATIBLE_IOCTL(SNDCTL_DSP_POST) 1084COMPATIBLE_IOCTL(SNDCTL_DSP_SUBDIVIDE) 1085COMPATIBLE_IOCTL(SNDCTL_DSP_SETFRAGMENT) 1086COMPATIBLE_IOCTL(SNDCTL_DSP_GETFMTS) 1087COMPATIBLE_IOCTL(SNDCTL_DSP_SETFMT) 1088COMPATIBLE_IOCTL(SNDCTL_DSP_GETOSPACE) 1089COMPATIBLE_IOCTL(SNDCTL_DSP_GETISPACE) 1090COMPATIBLE_IOCTL(SNDCTL_DSP_NONBLOCK) 1091COMPATIBLE_IOCTL(SNDCTL_DSP_GETCAPS) 1092COMPATIBLE_IOCTL(SNDCTL_DSP_GETTRIGGER) 1093COMPATIBLE_IOCTL(SNDCTL_DSP_SETTRIGGER) 1094COMPATIBLE_IOCTL(SNDCTL_DSP_GETIPTR) 1095COMPATIBLE_IOCTL(SNDCTL_DSP_GETOPTR) 1096/* SNDCTL_DSP_MAPINBUF, XXX needs translation */ 1097/* SNDCTL_DSP_MAPOUTBUF, XXX needs translation */ 1098COMPATIBLE_IOCTL(SNDCTL_DSP_SETSYNCRO) 1099COMPATIBLE_IOCTL(SNDCTL_DSP_SETDUPLEX) 1100COMPATIBLE_IOCTL(SNDCTL_DSP_GETODELAY) 1101COMPATIBLE_IOCTL(SNDCTL_DSP_PROFILE) 1102COMPATIBLE_IOCTL(SOUND_PCM_READ_RATE) 1103COMPATIBLE_IOCTL(SOUND_PCM_READ_CHANNELS) 1104COMPATIBLE_IOCTL(SOUND_PCM_READ_BITS) 1105COMPATIBLE_IOCTL(SOUND_PCM_READ_FILTER) 1106/* Big C for sound/OSS */ 1107COMPATIBLE_IOCTL(SNDCTL_COPR_RESET) 1108COMPATIBLE_IOCTL(SNDCTL_COPR_LOAD) 1109COMPATIBLE_IOCTL(SNDCTL_COPR_RDATA) 1110COMPATIBLE_IOCTL(SNDCTL_COPR_RCODE) 1111COMPATIBLE_IOCTL(SNDCTL_COPR_WDATA) 1112COMPATIBLE_IOCTL(SNDCTL_COPR_WCODE) 1113COMPATIBLE_IOCTL(SNDCTL_COPR_RUN) 1114COMPATIBLE_IOCTL(SNDCTL_COPR_HALT) 1115COMPATIBLE_IOCTL(SNDCTL_COPR_SENDMSG) 1116COMPATIBLE_IOCTL(SNDCTL_COPR_RCVMSG) 1117/* Big M for sound/OSS */ 1118COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME) 1119COMPATIBLE_IOCTL(SOUND_MIXER_READ_BASS) 1120COMPATIBLE_IOCTL(SOUND_MIXER_READ_TREBLE) 1121COMPATIBLE_IOCTL(SOUND_MIXER_READ_SYNTH) 1122COMPATIBLE_IOCTL(SOUND_MIXER_READ_PCM) 1123COMPATIBLE_IOCTL(SOUND_MIXER_READ_SPEAKER) 1124COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE) 1125COMPATIBLE_IOCTL(SOUND_MIXER_READ_MIC) 1126COMPATIBLE_IOCTL(SOUND_MIXER_READ_CD) 1127COMPATIBLE_IOCTL(SOUND_MIXER_READ_IMIX) 1128COMPATIBLE_IOCTL(SOUND_MIXER_READ_ALTPCM) 1129COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECLEV) 1130COMPATIBLE_IOCTL(SOUND_MIXER_READ_IGAIN) 1131COMPATIBLE_IOCTL(SOUND_MIXER_READ_OGAIN) 1132COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE1) 1133COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE2) 1134COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE3) 1135COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL1)) 1136COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL2)) 1137COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL3)) 1138COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEIN)) 1139COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEOUT)) 1140COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_VIDEO)) 1141COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_RADIO)) 1142COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_MONITOR)) 1143COMPATIBLE_IOCTL(SOUND_MIXER_READ_MUTE) 1144/* SOUND_MIXER_READ_ENHANCE, same value as READ_MUTE */ 1145/* SOUND_MIXER_READ_LOUD, same value as READ_MUTE */ 1146COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECSRC) 1147COMPATIBLE_IOCTL(SOUND_MIXER_READ_DEVMASK) 1148COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECMASK) 1149COMPATIBLE_IOCTL(SOUND_MIXER_READ_STEREODEVS) 1150COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS) 1151COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_VOLUME) 1152COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_BASS) 1153COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_TREBLE) 1154COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SYNTH) 1155COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_PCM) 1156COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SPEAKER) 1157COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE) 1158COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MIC) 1159COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_CD) 1160COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IMIX) 1161COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_ALTPCM) 1162COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECLEV) 1163COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IGAIN) 1164COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_OGAIN) 1165COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE1) 1166COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE2) 1167COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE3) 1168COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL1)) 1169COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL2)) 1170COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL3)) 1171COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEIN)) 1172COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEOUT)) 1173COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_VIDEO)) 1174COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_RADIO)) 1175COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_MONITOR)) 1176COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MUTE) 1177/* SOUND_MIXER_WRITE_ENHANCE, same value as WRITE_MUTE */ 1178/* SOUND_MIXER_WRITE_LOUD, same value as WRITE_MUTE */ 1179COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECSRC) 1180COMPATIBLE_IOCTL(SOUND_MIXER_INFO) 1181COMPATIBLE_IOCTL(SOUND_OLD_MIXER_INFO) 1182COMPATIBLE_IOCTL(SOUND_MIXER_ACCESS) 1183COMPATIBLE_IOCTL(SOUND_MIXER_AGC) 1184COMPATIBLE_IOCTL(SOUND_MIXER_3DSE) 1185COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE1) 1186COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE2) 1187COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE3) 1188COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE4) 1189COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5) 1190COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS) 1191COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS) 1192COMPATIBLE_IOCTL(OSS_GETVERSION) 1193/* Raw devices */ 1194COMPATIBLE_IOCTL(RAW_SETBIND) 1195COMPATIBLE_IOCTL(RAW_GETBIND) 1196/* Watchdog */ 1197COMPATIBLE_IOCTL(WDIOC_GETSUPPORT) 1198COMPATIBLE_IOCTL(WDIOC_GETSTATUS) 1199COMPATIBLE_IOCTL(WDIOC_GETBOOTSTATUS) 1200COMPATIBLE_IOCTL(WDIOC_GETTEMP) 1201COMPATIBLE_IOCTL(WDIOC_SETOPTIONS) 1202COMPATIBLE_IOCTL(WDIOC_KEEPALIVE) 1203COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT) 1204COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT) 1205COMPATIBLE_IOCTL(WDIOC_SETPRETIMEOUT) 1206COMPATIBLE_IOCTL(WDIOC_GETPRETIMEOUT) 1207/* Big R */ 1208COMPATIBLE_IOCTL(RNDGETENTCNT) 1209COMPATIBLE_IOCTL(RNDADDTOENTCNT) 1210COMPATIBLE_IOCTL(RNDGETPOOL) 1211COMPATIBLE_IOCTL(RNDADDENTROPY) 1212COMPATIBLE_IOCTL(RNDZAPENTCNT) 1213COMPATIBLE_IOCTL(RNDCLEARPOOL) 1214/* Bluetooth */ 1215COMPATIBLE_IOCTL(HCIDEVUP) 1216COMPATIBLE_IOCTL(HCIDEVDOWN) 1217COMPATIBLE_IOCTL(HCIDEVRESET) 1218COMPATIBLE_IOCTL(HCIDEVRESTAT) 1219COMPATIBLE_IOCTL(HCIGETDEVLIST) 1220COMPATIBLE_IOCTL(HCIGETDEVINFO) 1221COMPATIBLE_IOCTL(HCIGETCONNLIST) 1222COMPATIBLE_IOCTL(HCIGETCONNINFO) 1223COMPATIBLE_IOCTL(HCIGETAUTHINFO) 1224COMPATIBLE_IOCTL(HCISETRAW) 1225COMPATIBLE_IOCTL(HCISETSCAN) 1226COMPATIBLE_IOCTL(HCISETAUTH) 1227COMPATIBLE_IOCTL(HCISETENCRYPT) 1228COMPATIBLE_IOCTL(HCISETPTYPE) 1229COMPATIBLE_IOCTL(HCISETLINKPOL) 1230COMPATIBLE_IOCTL(HCISETLINKMODE) 1231COMPATIBLE_IOCTL(HCISETACLMTU) 1232COMPATIBLE_IOCTL(HCISETSCOMTU) 1233COMPATIBLE_IOCTL(HCIBLOCKADDR) 1234COMPATIBLE_IOCTL(HCIUNBLOCKADDR) 1235COMPATIBLE_IOCTL(HCIINQUIRY) 1236COMPATIBLE_IOCTL(HCIUARTSETPROTO) 1237COMPATIBLE_IOCTL(HCIUARTGETPROTO) 1238COMPATIBLE_IOCTL(HCIUARTGETDEVICE) 1239COMPATIBLE_IOCTL(HCIUARTSETFLAGS) 1240COMPATIBLE_IOCTL(HCIUARTGETFLAGS) 1241COMPATIBLE_IOCTL(RFCOMMCREATEDEV) 1242COMPATIBLE_IOCTL(RFCOMMRELEASEDEV) 1243COMPATIBLE_IOCTL(RFCOMMGETDEVLIST) 1244COMPATIBLE_IOCTL(RFCOMMGETDEVINFO) 1245COMPATIBLE_IOCTL(RFCOMMSTEALDLC) 1246COMPATIBLE_IOCTL(BNEPCONNADD) 1247COMPATIBLE_IOCTL(BNEPCONNDEL) 1248COMPATIBLE_IOCTL(BNEPGETCONNLIST) 1249COMPATIBLE_IOCTL(BNEPGETCONNINFO) 1250COMPATIBLE_IOCTL(BNEPGETSUPPFEAT) 1251COMPATIBLE_IOCTL(CMTPCONNADD) 1252COMPATIBLE_IOCTL(CMTPCONNDEL) 1253COMPATIBLE_IOCTL(CMTPGETCONNLIST) 1254COMPATIBLE_IOCTL(CMTPGETCONNINFO) 1255COMPATIBLE_IOCTL(HIDPCONNADD) 1256COMPATIBLE_IOCTL(HIDPCONNDEL) 1257COMPATIBLE_IOCTL(HIDPGETCONNLIST) 1258COMPATIBLE_IOCTL(HIDPGETCONNINFO) 1259/* CAPI */ 1260COMPATIBLE_IOCTL(CAPI_REGISTER) 1261COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER) 1262COMPATIBLE_IOCTL(CAPI_GET_VERSION) 1263COMPATIBLE_IOCTL(CAPI_GET_SERIAL) 1264COMPATIBLE_IOCTL(CAPI_GET_PROFILE) 1265COMPATIBLE_IOCTL(CAPI_MANUFACTURER_CMD) 1266COMPATIBLE_IOCTL(CAPI_GET_ERRCODE) 1267COMPATIBLE_IOCTL(CAPI_INSTALLED) 1268COMPATIBLE_IOCTL(CAPI_GET_FLAGS) 1269COMPATIBLE_IOCTL(CAPI_SET_FLAGS) 1270COMPATIBLE_IOCTL(CAPI_CLR_FLAGS) 1271COMPATIBLE_IOCTL(CAPI_NCCI_OPENCOUNT) 1272COMPATIBLE_IOCTL(CAPI_NCCI_GETUNIT) 1273/* Siemens Gigaset */ 1274COMPATIBLE_IOCTL(GIGASET_REDIR) 1275COMPATIBLE_IOCTL(GIGASET_CONFIG) 1276COMPATIBLE_IOCTL(GIGASET_BRKCHARS) 1277COMPATIBLE_IOCTL(GIGASET_VERSION) 1278/* Misc. */ 1279COMPATIBLE_IOCTL(0x41545900) /* ATYIO_CLKR */ 1280COMPATIBLE_IOCTL(0x41545901) /* ATYIO_CLKW */ 1281COMPATIBLE_IOCTL(PCIIOC_CONTROLLER) 1282COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO) 1283COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM) 1284COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE) 1285/* i2c */ 1286COMPATIBLE_IOCTL(I2C_SLAVE) 1287COMPATIBLE_IOCTL(I2C_SLAVE_FORCE) 1288COMPATIBLE_IOCTL(I2C_TENBIT) 1289COMPATIBLE_IOCTL(I2C_PEC) 1290COMPATIBLE_IOCTL(I2C_RETRIES) 1291COMPATIBLE_IOCTL(I2C_TIMEOUT) 1292/* hiddev */ 1293COMPATIBLE_IOCTL(HIDIOCGVERSION) 1294COMPATIBLE_IOCTL(HIDIOCAPPLICATION) 1295COMPATIBLE_IOCTL(HIDIOCGDEVINFO) 1296COMPATIBLE_IOCTL(HIDIOCGSTRING) 1297COMPATIBLE_IOCTL(HIDIOCINITREPORT) 1298COMPATIBLE_IOCTL(HIDIOCGREPORT) 1299COMPATIBLE_IOCTL(HIDIOCSREPORT) 1300COMPATIBLE_IOCTL(HIDIOCGREPORTINFO) 1301COMPATIBLE_IOCTL(HIDIOCGFIELDINFO) 1302COMPATIBLE_IOCTL(HIDIOCGUSAGE) 1303COMPATIBLE_IOCTL(HIDIOCSUSAGE) 1304COMPATIBLE_IOCTL(HIDIOCGUCODE) 1305COMPATIBLE_IOCTL(HIDIOCGFLAG) 1306COMPATIBLE_IOCTL(HIDIOCSFLAG) 1307COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX) 1308COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO) 1309/* dvb */ 1310COMPATIBLE_IOCTL(AUDIO_STOP) 1311COMPATIBLE_IOCTL(AUDIO_PLAY) 1312COMPATIBLE_IOCTL(AUDIO_PAUSE) 1313COMPATIBLE_IOCTL(AUDIO_CONTINUE) 1314COMPATIBLE_IOCTL(AUDIO_SELECT_SOURCE) 1315COMPATIBLE_IOCTL(AUDIO_SET_MUTE) 1316COMPATIBLE_IOCTL(AUDIO_SET_AV_SYNC) 1317COMPATIBLE_IOCTL(AUDIO_SET_BYPASS_MODE) 1318COMPATIBLE_IOCTL(AUDIO_CHANNEL_SELECT) 1319COMPATIBLE_IOCTL(AUDIO_GET_STATUS) 1320COMPATIBLE_IOCTL(AUDIO_GET_CAPABILITIES) 1321COMPATIBLE_IOCTL(AUDIO_CLEAR_BUFFER) 1322COMPATIBLE_IOCTL(AUDIO_SET_ID) 1323COMPATIBLE_IOCTL(AUDIO_SET_MIXER) 1324COMPATIBLE_IOCTL(AUDIO_SET_STREAMTYPE) 1325COMPATIBLE_IOCTL(AUDIO_SET_EXT_ID) 1326COMPATIBLE_IOCTL(AUDIO_SET_ATTRIBUTES) 1327COMPATIBLE_IOCTL(AUDIO_SET_KARAOKE) 1328COMPATIBLE_IOCTL(DMX_START) 1329COMPATIBLE_IOCTL(DMX_STOP) 1330COMPATIBLE_IOCTL(DMX_SET_FILTER) 1331COMPATIBLE_IOCTL(DMX_SET_PES_FILTER) 1332COMPATIBLE_IOCTL(DMX_SET_BUFFER_SIZE) 1333COMPATIBLE_IOCTL(DMX_GET_PES_PIDS) 1334COMPATIBLE_IOCTL(DMX_GET_CAPS) 1335COMPATIBLE_IOCTL(DMX_SET_SOURCE) 1336COMPATIBLE_IOCTL(DMX_GET_STC) 1337COMPATIBLE_IOCTL(FE_GET_INFO) 1338COMPATIBLE_IOCTL(FE_DISEQC_RESET_OVERLOAD) 1339COMPATIBLE_IOCTL(FE_DISEQC_SEND_MASTER_CMD) 1340COMPATIBLE_IOCTL(FE_DISEQC_RECV_SLAVE_REPLY) 1341COMPATIBLE_IOCTL(FE_DISEQC_SEND_BURST) 1342COMPATIBLE_IOCTL(FE_SET_TONE) 1343COMPATIBLE_IOCTL(FE_SET_VOLTAGE) 1344COMPATIBLE_IOCTL(FE_ENABLE_HIGH_LNB_VOLTAGE) 1345COMPATIBLE_IOCTL(FE_READ_STATUS) 1346COMPATIBLE_IOCTL(FE_READ_BER) 1347COMPATIBLE_IOCTL(FE_READ_SIGNAL_STRENGTH) 1348COMPATIBLE_IOCTL(FE_READ_SNR) 1349COMPATIBLE_IOCTL(FE_READ_UNCORRECTED_BLOCKS) 1350COMPATIBLE_IOCTL(FE_SET_FRONTEND) 1351COMPATIBLE_IOCTL(FE_GET_FRONTEND) 1352COMPATIBLE_IOCTL(FE_GET_EVENT) 1353COMPATIBLE_IOCTL(FE_DISHNETWORK_SEND_LEGACY_CMD) 1354COMPATIBLE_IOCTL(VIDEO_STOP) 1355COMPATIBLE_IOCTL(VIDEO_PLAY) 1356COMPATIBLE_IOCTL(VIDEO_FREEZE) 1357COMPATIBLE_IOCTL(VIDEO_CONTINUE) 1358COMPATIBLE_IOCTL(VIDEO_SELECT_SOURCE) 1359COMPATIBLE_IOCTL(VIDEO_SET_BLANK) 1360COMPATIBLE_IOCTL(VIDEO_GET_STATUS) 1361COMPATIBLE_IOCTL(VIDEO_SET_DISPLAY_FORMAT) 1362COMPATIBLE_IOCTL(VIDEO_FAST_FORWARD) 1363COMPATIBLE_IOCTL(VIDEO_SLOWMOTION) 1364COMPATIBLE_IOCTL(VIDEO_GET_CAPABILITIES) 1365COMPATIBLE_IOCTL(VIDEO_CLEAR_BUFFER) 1366COMPATIBLE_IOCTL(VIDEO_SET_ID) 1367COMPATIBLE_IOCTL(VIDEO_SET_STREAMTYPE) 1368COMPATIBLE_IOCTL(VIDEO_SET_FORMAT) 1369COMPATIBLE_IOCTL(VIDEO_SET_SYSTEM) 1370COMPATIBLE_IOCTL(VIDEO_SET_HIGHLIGHT) 1371COMPATIBLE_IOCTL(VIDEO_SET_SPU) 1372COMPATIBLE_IOCTL(VIDEO_GET_NAVI) 1373COMPATIBLE_IOCTL(VIDEO_SET_ATTRIBUTES) 1374COMPATIBLE_IOCTL(VIDEO_GET_SIZE) 1375COMPATIBLE_IOCTL(VIDEO_GET_FRAME_RATE) 1376/* cec */ 1377COMPATIBLE_IOCTL(CEC_ADAP_G_CAPS) 1378COMPATIBLE_IOCTL(CEC_ADAP_G_LOG_ADDRS) 1379COMPATIBLE_IOCTL(CEC_ADAP_S_LOG_ADDRS) 1380COMPATIBLE_IOCTL(CEC_ADAP_G_PHYS_ADDR) 1381COMPATIBLE_IOCTL(CEC_ADAP_S_PHYS_ADDR) 1382COMPATIBLE_IOCTL(CEC_G_MODE) 1383COMPATIBLE_IOCTL(CEC_S_MODE) 1384COMPATIBLE_IOCTL(CEC_TRANSMIT) 1385COMPATIBLE_IOCTL(CEC_RECEIVE) 1386COMPATIBLE_IOCTL(CEC_DQEVENT) 1387 1388/* joystick */ 1389COMPATIBLE_IOCTL(JSIOCGVERSION) 1390COMPATIBLE_IOCTL(JSIOCGAXES) 1391COMPATIBLE_IOCTL(JSIOCGBUTTONS) 1392COMPATIBLE_IOCTL(JSIOCGNAME(0)) 1393 1394#ifdef TIOCGLTC 1395COMPATIBLE_IOCTL(TIOCGLTC) 1396COMPATIBLE_IOCTL(TIOCSLTC) 1397#endif 1398#ifdef TIOCSTART 1399/* 1400 * For these two we have definitions in ioctls.h and/or termios.h on 1401 * some architectures but no actual implemention. Some applications 1402 * like bash call them if they are defined in the headers, so we provide 1403 * entries here to avoid syslog message spew. 1404 */ 1405COMPATIBLE_IOCTL(TIOCSTART) 1406COMPATIBLE_IOCTL(TIOCSTOP) 1407#endif 1408 1409/* fat 'r' ioctls. These are handled by fat with ->compat_ioctl, 1410 but we don't want warnings on other file systems. So declare 1411 them as compatible here. */ 1412#define VFAT_IOCTL_READDIR_BOTH32 _IOR('r', 1, struct compat_dirent[2]) 1413#define VFAT_IOCTL_READDIR_SHORT32 _IOR('r', 2, struct compat_dirent[2]) 1414 1415IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32) 1416IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32) 1417 1418#ifdef CONFIG_SPARC 1419/* Sparc framebuffers, handled in sbusfb_compat_ioctl() */ 1420IGNORE_IOCTL(FBIOGTYPE) 1421IGNORE_IOCTL(FBIOSATTR) 1422IGNORE_IOCTL(FBIOGATTR) 1423IGNORE_IOCTL(FBIOSVIDEO) 1424IGNORE_IOCTL(FBIOGVIDEO) 1425IGNORE_IOCTL(FBIOSCURPOS) 1426IGNORE_IOCTL(FBIOGCURPOS) 1427IGNORE_IOCTL(FBIOGCURMAX) 1428IGNORE_IOCTL(FBIOPUTCMAP32) 1429IGNORE_IOCTL(FBIOGETCMAP32) 1430IGNORE_IOCTL(FBIOSCURSOR32) 1431IGNORE_IOCTL(FBIOGCURSOR32) 1432#endif 1433}; 1434 1435/* 1436 * Convert common ioctl arguments based on their command number 1437 * 1438 * Please do not add any code in here. Instead, implement 1439 * a compat_ioctl operation in the place that handleѕ the 1440 * ioctl for the native case. 1441 */ 1442static long do_ioctl_trans(unsigned int cmd, 1443 unsigned long arg, struct file *file) 1444{ 1445 void __user *argp = compat_ptr(arg); 1446 1447 switch (cmd) { 1448 case PPPIOCGIDLE32: 1449 return ppp_gidle(file, cmd, argp); 1450 case PPPIOCSCOMPRESS32: 1451 return ppp_scompress(file, cmd, argp); 1452 case PPPIOCSPASS32: 1453 case PPPIOCSACTIVE32: 1454 return ppp_sock_fprog_ioctl_trans(file, cmd, argp); 1455#ifdef CONFIG_BLOCK 1456 case SG_IO: 1457 return sg_ioctl_trans(file, cmd, argp); 1458 case SG_GET_REQUEST_TABLE: 1459 return sg_grt_trans(file, cmd, argp); 1460 case MTIOCGET32: 1461 case MTIOCPOS32: 1462 return mt_ioctl_trans(file, cmd, argp); 1463#endif 1464 /* Serial */ 1465 case TIOCGSERIAL: 1466 case TIOCSSERIAL: 1467 return serial_struct_ioctl(file, cmd, argp); 1468 /* i2c */ 1469 case I2C_FUNCS: 1470 return w_long(file, cmd, argp); 1471 case I2C_RDWR: 1472 return do_i2c_rdwr_ioctl(file, cmd, argp); 1473 case I2C_SMBUS: 1474 return do_i2c_smbus_ioctl(file, cmd, argp); 1475 /* Not implemented in the native kernel */ 1476 case RTC_IRQP_READ32: 1477 case RTC_IRQP_SET32: 1478 case RTC_EPOCH_READ32: 1479 case RTC_EPOCH_SET32: 1480 return rtc_ioctl(file, cmd, argp); 1481 1482 /* dvb */ 1483 case VIDEO_GET_EVENT: 1484 return do_video_get_event(file, cmd, argp); 1485 case VIDEO_STILLPICTURE: 1486 return do_video_stillpicture(file, cmd, argp); 1487 case VIDEO_SET_SPU_PALETTE: 1488 return do_video_set_spu_palette(file, cmd, argp); 1489 } 1490 1491 /* 1492 * These take an integer instead of a pointer as 'arg', 1493 * so we must not do a compat_ptr() translation. 1494 */ 1495 switch (cmd) { 1496 /* Big T */ 1497 case TCSBRKP: 1498 case TIOCMIWAIT: 1499 case TIOCSCTTY: 1500 /* RAID */ 1501 case HOT_REMOVE_DISK: 1502 case HOT_ADD_DISK: 1503 case SET_DISK_FAULTY: 1504 case SET_BITMAP_FILE: 1505 /* Big K */ 1506 case KDSIGACCEPT: 1507 case KIOCSOUND: 1508 case KDMKTONE: 1509 case KDSETMODE: 1510 case KDSKBMODE: 1511 case KDSKBMETA: 1512 case KDSKBLED: 1513 case KDSETLED: 1514 return vfs_ioctl(file, cmd, arg); 1515 } 1516 1517 return -ENOIOCTLCMD; 1518} 1519 1520static int compat_ioctl_check_table(unsigned int xcmd) 1521{ 1522 int i; 1523 const int max = ARRAY_SIZE(ioctl_pointer) - 1; 1524 1525 BUILD_BUG_ON(max >= (1 << 16)); 1526 1527 /* guess initial offset into table, assuming a 1528 normalized distribution */ 1529 i = ((xcmd >> 16) * max) >> 16; 1530 1531 /* do linear search up first, until greater or equal */ 1532 while (ioctl_pointer[i] < xcmd && i < max) 1533 i++; 1534 1535 /* then do linear search down */ 1536 while (ioctl_pointer[i] > xcmd && i > 0) 1537 i--; 1538 1539 return ioctl_pointer[i] == xcmd; 1540} 1541 1542COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, 1543 compat_ulong_t, arg32) 1544{ 1545 unsigned long arg = arg32; 1546 struct fd f = fdget(fd); 1547 int error = -EBADF; 1548 if (!f.file) 1549 goto out; 1550 1551 /* RED-PEN how should LSM module know it's handling 32bit? */ 1552 error = security_file_ioctl(f.file, cmd, arg); 1553 if (error) 1554 goto out_fput; 1555 1556 /* 1557 * To allow the compat_ioctl handlers to be self contained 1558 * we need to check the common ioctls here first. 1559 * Just handle them with the standard handlers below. 1560 */ 1561 switch (cmd) { 1562 case FIOCLEX: 1563 case FIONCLEX: 1564 case FIONBIO: 1565 case FIOASYNC: 1566 case FIOQSIZE: 1567 break; 1568 1569#if defined(CONFIG_IA64) || defined(CONFIG_X86_64) 1570 case FS_IOC_RESVSP_32: 1571 case FS_IOC_RESVSP64_32: 1572 error = compat_ioctl_preallocate(f.file, compat_ptr(arg)); 1573 goto out_fput; 1574#else 1575 case FS_IOC_RESVSP: 1576 case FS_IOC_RESVSP64: 1577 error = ioctl_preallocate(f.file, compat_ptr(arg)); 1578 goto out_fput; 1579#endif 1580 1581 case FICLONE: 1582 case FICLONERANGE: 1583 case FIDEDUPERANGE: 1584 goto do_ioctl; 1585 1586 case FIBMAP: 1587 case FIGETBSZ: 1588 case FIONREAD: 1589 if (S_ISREG(file_inode(f.file)->i_mode)) 1590 break; 1591 /*FALL THROUGH*/ 1592 1593 default: 1594 if (f.file->f_op->compat_ioctl) { 1595 error = f.file->f_op->compat_ioctl(f.file, cmd, arg); 1596 if (error != -ENOIOCTLCMD) 1597 goto out_fput; 1598 } 1599 1600 if (!f.file->f_op->unlocked_ioctl) 1601 goto do_ioctl; 1602 break; 1603 } 1604 1605 if (compat_ioctl_check_table(XFORM(cmd))) 1606 goto found_handler; 1607 1608 error = do_ioctl_trans(cmd, arg, f.file); 1609 if (error == -ENOIOCTLCMD) 1610 error = -ENOTTY; 1611 1612 goto out_fput; 1613 1614 found_handler: 1615 arg = (unsigned long)compat_ptr(arg); 1616 do_ioctl: 1617 error = do_vfs_ioctl(f.file, fd, cmd, arg); 1618 out_fput: 1619 fdput(f); 1620 out: 1621 return error; 1622} 1623 1624static int __init init_sys32_ioctl_cmp(const void *p, const void *q) 1625{ 1626 unsigned int a, b; 1627 a = *(unsigned int *)p; 1628 b = *(unsigned int *)q; 1629 if (a > b) 1630 return 1; 1631 if (a < b) 1632 return -1; 1633 return 0; 1634} 1635 1636static int __init init_sys32_ioctl(void) 1637{ 1638 sort(ioctl_pointer, ARRAY_SIZE(ioctl_pointer), sizeof(*ioctl_pointer), 1639 init_sys32_ioctl_cmp, NULL); 1640 return 0; 1641} 1642__initcall(init_sys32_ioctl);