Root/fs/compat_ioctl.c

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/if_ppp.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/module.h>
53#include <linux/serial.h>
54#include <linux/if_tun.h>
55#include <linux/ctype.h>
56#include <linux/syscalls.h>
57#include <linux/i2c.h>
58#include <linux/i2c-dev.h>
59#include <linux/atalk.h>
60#include <linux/gfp.h>
61
62#include <net/bluetooth/bluetooth.h>
63#include <net/bluetooth/hci.h>
64#include <net/bluetooth/rfcomm.h>
65
66#include <linux/capi.h>
67#include <linux/gigaset_dev.h>
68
69#ifdef CONFIG_BLOCK
70#include <linux/loop.h>
71#include <scsi/scsi.h>
72#include <scsi/scsi_ioctl.h>
73#include <scsi/sg.h>
74#endif
75
76#include <asm/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#include <linux/dvb/audio.h>
107#include <linux/dvb/dmx.h>
108#include <linux/dvb/frontend.h>
109#include <linux/dvb/video.h>
110
111#include <linux/sort.h>
112
113#ifdef CONFIG_SPARC
114#include <asm/fbio.h>
115#endif
116
117static int w_long(unsigned int fd, unsigned int cmd,
118        compat_ulong_t __user *argp)
119{
120    mm_segment_t old_fs = get_fs();
121    int err;
122    unsigned long val;
123
124    set_fs (KERNEL_DS);
125    err = sys_ioctl(fd, cmd, (unsigned long)&val);
126    set_fs (old_fs);
127    if (!err && put_user(val, argp))
128        return -EFAULT;
129    return err;
130}
131
132struct compat_video_event {
133    int32_t type;
134    compat_time_t timestamp;
135    union {
136            video_size_t size;
137        unsigned int frame_rate;
138    } u;
139};
140
141static int do_video_get_event(unsigned int fd, unsigned int cmd,
142        struct compat_video_event __user *up)
143{
144    struct video_event kevent;
145    mm_segment_t old_fs = get_fs();
146    int err;
147
148    set_fs(KERNEL_DS);
149    err = sys_ioctl(fd, cmd, (unsigned long) &kevent);
150    set_fs(old_fs);
151
152    if (!err) {
153        err = put_user(kevent.type, &up->type);
154        err |= put_user(kevent.timestamp, &up->timestamp);
155        err |= put_user(kevent.u.size.w, &up->u.size.w);
156        err |= put_user(kevent.u.size.h, &up->u.size.h);
157        err |= put_user(kevent.u.size.aspect_ratio,
158                &up->u.size.aspect_ratio);
159        if (err)
160            err = -EFAULT;
161    }
162
163    return err;
164}
165
166struct compat_video_still_picture {
167        compat_uptr_t iFrame;
168        int32_t size;
169};
170
171static int do_video_stillpicture(unsigned int fd, unsigned int cmd,
172    struct compat_video_still_picture __user *up)
173{
174    struct video_still_picture __user *up_native;
175    compat_uptr_t fp;
176    int32_t size;
177    int err;
178
179    err = get_user(fp, &up->iFrame);
180    err |= get_user(size, &up->size);
181    if (err)
182        return -EFAULT;
183
184    up_native =
185        compat_alloc_user_space(sizeof(struct video_still_picture));
186
187    err = put_user(compat_ptr(fp), &up_native->iFrame);
188    err |= put_user(size, &up_native->size);
189    if (err)
190        return -EFAULT;
191
192    err = sys_ioctl(fd, cmd, (unsigned long) up_native);
193
194    return err;
195}
196
197struct compat_video_spu_palette {
198    int length;
199    compat_uptr_t palette;
200};
201
202static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd,
203        struct compat_video_spu_palette __user *up)
204{
205    struct video_spu_palette __user *up_native;
206    compat_uptr_t palp;
207    int length, err;
208
209    err = get_user(palp, &up->palette);
210    err |= get_user(length, &up->length);
211
212    up_native = compat_alloc_user_space(sizeof(struct video_spu_palette));
213    err = put_user(compat_ptr(palp), &up_native->palette);
214    err |= put_user(length, &up_native->length);
215    if (err)
216        return -EFAULT;
217
218    err = sys_ioctl(fd, cmd, (unsigned long) up_native);
219
220    return err;
221}
222
223#ifdef CONFIG_BLOCK
224typedef struct sg_io_hdr32 {
225    compat_int_t interface_id; /* [i] 'S' for SCSI generic (required) */
226    compat_int_t dxfer_direction; /* [i] data transfer direction */
227    unsigned char cmd_len; /* [i] SCSI command length ( <= 16 bytes) */
228    unsigned char mx_sb_len; /* [i] max length to write to sbp */
229    unsigned short iovec_count; /* [i] 0 implies no scatter gather */
230    compat_uint_t dxfer_len; /* [i] byte count of data transfer */
231    compat_uint_t dxferp; /* [i], [*io] points to data transfer memory
232                          or scatter gather list */
233    compat_uptr_t cmdp; /* [i], [*i] points to command to perform */
234    compat_uptr_t sbp; /* [i], [*o] points to sense_buffer memory */
235    compat_uint_t timeout; /* [i] MAX_UINT->no timeout (unit: millisec) */
236    compat_uint_t flags; /* [i] 0 -> default, see SG_FLAG... */
237    compat_int_t pack_id; /* [i->o] unused internally (normally) */
238    compat_uptr_t usr_ptr; /* [i->o] unused internally */
239    unsigned char status; /* [o] scsi status */
240    unsigned char masked_status; /* [o] shifted, masked scsi status */
241    unsigned char msg_status; /* [o] messaging level data (optional) */
242    unsigned char sb_len_wr; /* [o] byte count actually written to sbp */
243    unsigned short host_status; /* [o] errors from host adapter */
244    unsigned short driver_status; /* [o] errors from software driver */
245    compat_int_t resid; /* [o] dxfer_len - actual_transferred */
246    compat_uint_t duration; /* [o] time taken by cmd (unit: millisec) */
247    compat_uint_t info; /* [o] auxiliary information */
248} sg_io_hdr32_t; /* 64 bytes long (on sparc32) */
249
250typedef struct sg_iovec32 {
251    compat_uint_t iov_base;
252    compat_uint_t iov_len;
253} sg_iovec32_t;
254
255static int sg_build_iovec(sg_io_hdr_t __user *sgio, void __user *dxferp, u16 iovec_count)
256{
257    sg_iovec_t __user *iov = (sg_iovec_t __user *) (sgio + 1);
258    sg_iovec32_t __user *iov32 = dxferp;
259    int i;
260
261    for (i = 0; i < iovec_count; i++) {
262        u32 base, len;
263
264        if (get_user(base, &iov32[i].iov_base) ||
265            get_user(len, &iov32[i].iov_len) ||
266            put_user(compat_ptr(base), &iov[i].iov_base) ||
267            put_user(len, &iov[i].iov_len))
268            return -EFAULT;
269    }
270
271    if (put_user(iov, &sgio->dxferp))
272        return -EFAULT;
273    return 0;
274}
275
276static int sg_ioctl_trans(unsigned int fd, unsigned int cmd,
277            sg_io_hdr32_t __user *sgio32)
278{
279    sg_io_hdr_t __user *sgio;
280    u16 iovec_count;
281    u32 data;
282    void __user *dxferp;
283    int err;
284    int interface_id;
285
286    if (get_user(interface_id, &sgio32->interface_id))
287        return -EFAULT;
288    if (interface_id != 'S')
289        return sys_ioctl(fd, cmd, (unsigned long)sgio32);
290
291    if (get_user(iovec_count, &sgio32->iovec_count))
292        return -EFAULT;
293
294    {
295        void __user *top = compat_alloc_user_space(0);
296        void __user *new = compat_alloc_user_space(sizeof(sg_io_hdr_t) +
297                       (iovec_count * sizeof(sg_iovec_t)));
298        if (new > top)
299            return -EINVAL;
300
301        sgio = new;
302    }
303
304    /* Ok, now construct. */
305    if (copy_in_user(&sgio->interface_id, &sgio32->interface_id,
306             (2 * sizeof(int)) +
307             (2 * sizeof(unsigned char)) +
308             (1 * sizeof(unsigned short)) +
309             (1 * sizeof(unsigned int))))
310        return -EFAULT;
311
312    if (get_user(data, &sgio32->dxferp))
313        return -EFAULT;
314    dxferp = compat_ptr(data);
315    if (iovec_count) {
316        if (sg_build_iovec(sgio, dxferp, iovec_count))
317            return -EFAULT;
318    } else {
319        if (put_user(dxferp, &sgio->dxferp))
320            return -EFAULT;
321    }
322
323    {
324        unsigned char __user *cmdp;
325        unsigned char __user *sbp;
326
327        if (get_user(data, &sgio32->cmdp))
328            return -EFAULT;
329        cmdp = compat_ptr(data);
330
331        if (get_user(data, &sgio32->sbp))
332            return -EFAULT;
333        sbp = compat_ptr(data);
334
335        if (put_user(cmdp, &sgio->cmdp) ||
336            put_user(sbp, &sgio->sbp))
337            return -EFAULT;
338    }
339
340    if (copy_in_user(&sgio->timeout, &sgio32->timeout,
341             3 * sizeof(int)))
342        return -EFAULT;
343
344    if (get_user(data, &sgio32->usr_ptr))
345        return -EFAULT;
346    if (put_user(compat_ptr(data), &sgio->usr_ptr))
347        return -EFAULT;
348
349    err = sys_ioctl(fd, cmd, (unsigned long) sgio);
350
351    if (err >= 0) {
352        void __user *datap;
353
354        if (copy_in_user(&sgio32->pack_id, &sgio->pack_id,
355                 sizeof(int)) ||
356            get_user(datap, &sgio->usr_ptr) ||
357            put_user((u32)(unsigned long)datap,
358                 &sgio32->usr_ptr) ||
359            copy_in_user(&sgio32->status, &sgio->status,
360                 (4 * sizeof(unsigned char)) +
361                 (2 * sizeof(unsigned short)) +
362                 (3 * sizeof(int))))
363            err = -EFAULT;
364    }
365
366    return err;
367}
368
369struct compat_sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */
370    char req_state;
371    char orphan;
372    char sg_io_owned;
373    char problem;
374    int pack_id;
375    compat_uptr_t usr_ptr;
376    unsigned int duration;
377    int unused;
378};
379
380static int sg_grt_trans(unsigned int fd, unsigned int cmd, struct
381            compat_sg_req_info __user *o)
382{
383    int err, i;
384    sg_req_info_t __user *r;
385    r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE);
386    err = sys_ioctl(fd,cmd,(unsigned long)r);
387    if (err < 0)
388        return err;
389    for (i = 0; i < SG_MAX_QUEUE; i++) {
390        void __user *ptr;
391        int d;
392
393        if (copy_in_user(o + i, r + i, offsetof(sg_req_info_t, usr_ptr)) ||
394            get_user(ptr, &r[i].usr_ptr) ||
395            get_user(d, &r[i].duration) ||
396            put_user((u32)(unsigned long)(ptr), &o[i].usr_ptr) ||
397            put_user(d, &o[i].duration))
398            return -EFAULT;
399    }
400    return err;
401}
402#endif /* CONFIG_BLOCK */
403
404struct sock_fprog32 {
405    unsigned short len;
406    compat_caddr_t filter;
407};
408
409#define PPPIOCSPASS32 _IOW('t', 71, struct sock_fprog32)
410#define PPPIOCSACTIVE32 _IOW('t', 70, struct sock_fprog32)
411
412static int ppp_sock_fprog_ioctl_trans(unsigned int fd, unsigned int cmd,
413            struct sock_fprog32 __user *u_fprog32)
414{
415    struct sock_fprog __user *u_fprog64 = compat_alloc_user_space(sizeof(struct sock_fprog));
416    void __user *fptr64;
417    u32 fptr32;
418    u16 flen;
419
420    if (get_user(flen, &u_fprog32->len) ||
421        get_user(fptr32, &u_fprog32->filter))
422        return -EFAULT;
423
424    fptr64 = compat_ptr(fptr32);
425
426    if (put_user(flen, &u_fprog64->len) ||
427        put_user(fptr64, &u_fprog64->filter))
428        return -EFAULT;
429
430    if (cmd == PPPIOCSPASS32)
431        cmd = PPPIOCSPASS;
432    else
433        cmd = PPPIOCSACTIVE;
434
435    return sys_ioctl(fd, cmd, (unsigned long) u_fprog64);
436}
437
438struct ppp_option_data32 {
439    compat_caddr_t ptr;
440    u32 length;
441    compat_int_t transmit;
442};
443#define PPPIOCSCOMPRESS32 _IOW('t', 77, struct ppp_option_data32)
444
445struct ppp_idle32 {
446    compat_time_t xmit_idle;
447    compat_time_t recv_idle;
448};
449#define PPPIOCGIDLE32 _IOR('t', 63, struct ppp_idle32)
450
451static int ppp_gidle(unsigned int fd, unsigned int cmd,
452        struct ppp_idle32 __user *idle32)
453{
454    struct ppp_idle __user *idle;
455    __kernel_time_t xmit, recv;
456    int err;
457
458    idle = compat_alloc_user_space(sizeof(*idle));
459
460    err = sys_ioctl(fd, PPPIOCGIDLE, (unsigned long) idle);
461
462    if (!err) {
463        if (get_user(xmit, &idle->xmit_idle) ||
464            get_user(recv, &idle->recv_idle) ||
465            put_user(xmit, &idle32->xmit_idle) ||
466            put_user(recv, &idle32->recv_idle))
467            err = -EFAULT;
468    }
469    return err;
470}
471
472static int ppp_scompress(unsigned int fd, unsigned int cmd,
473    struct ppp_option_data32 __user *odata32)
474{
475    struct ppp_option_data __user *odata;
476    __u32 data;
477    void __user *datap;
478
479    odata = compat_alloc_user_space(sizeof(*odata));
480
481    if (get_user(data, &odata32->ptr))
482        return -EFAULT;
483
484    datap = compat_ptr(data);
485    if (put_user(datap, &odata->ptr))
486        return -EFAULT;
487
488    if (copy_in_user(&odata->length, &odata32->length,
489             sizeof(__u32) + sizeof(int)))
490        return -EFAULT;
491
492    return sys_ioctl(fd, PPPIOCSCOMPRESS, (unsigned long) odata);
493}
494
495#ifdef CONFIG_BLOCK
496struct mtget32 {
497    compat_long_t mt_type;
498    compat_long_t mt_resid;
499    compat_long_t mt_dsreg;
500    compat_long_t mt_gstat;
501    compat_long_t mt_erreg;
502    compat_daddr_t mt_fileno;
503    compat_daddr_t mt_blkno;
504};
505#define MTIOCGET32 _IOR('m', 2, struct mtget32)
506
507struct mtpos32 {
508    compat_long_t mt_blkno;
509};
510#define MTIOCPOS32 _IOR('m', 3, struct mtpos32)
511
512static int mt_ioctl_trans(unsigned int fd, unsigned int cmd, void __user *argp)
513{
514    mm_segment_t old_fs = get_fs();
515    struct mtget get;
516    struct mtget32 __user *umget32;
517    struct mtpos pos;
518    struct mtpos32 __user *upos32;
519    unsigned long kcmd;
520    void *karg;
521    int err = 0;
522
523    switch(cmd) {
524    case MTIOCPOS32:
525        kcmd = MTIOCPOS;
526        karg = &pos;
527        break;
528    default: /* MTIOCGET32 */
529        kcmd = MTIOCGET;
530        karg = &get;
531        break;
532    }
533    set_fs (KERNEL_DS);
534    err = sys_ioctl (fd, kcmd, (unsigned long)karg);
535    set_fs (old_fs);
536    if (err)
537        return err;
538    switch (cmd) {
539    case MTIOCPOS32:
540        upos32 = argp;
541        err = __put_user(pos.mt_blkno, &upos32->mt_blkno);
542        break;
543    case MTIOCGET32:
544        umget32 = argp;
545        err = __put_user(get.mt_type, &umget32->mt_type);
546        err |= __put_user(get.mt_resid, &umget32->mt_resid);
547        err |= __put_user(get.mt_dsreg, &umget32->mt_dsreg);
548        err |= __put_user(get.mt_gstat, &umget32->mt_gstat);
549        err |= __put_user(get.mt_erreg, &umget32->mt_erreg);
550        err |= __put_user(get.mt_fileno, &umget32->mt_fileno);
551        err |= __put_user(get.mt_blkno, &umget32->mt_blkno);
552        break;
553    }
554    return err ? -EFAULT: 0;
555}
556
557#endif /* CONFIG_BLOCK */
558
559/* Bluetooth ioctls */
560#define HCIUARTSETPROTO _IOW('U', 200, int)
561#define HCIUARTGETPROTO _IOR('U', 201, int)
562#define HCIUARTGETDEVICE _IOR('U', 202, int)
563#define HCIUARTSETFLAGS _IOW('U', 203, int)
564#define HCIUARTGETFLAGS _IOR('U', 204, int)
565
566#define BNEPCONNADD _IOW('B', 200, int)
567#define BNEPCONNDEL _IOW('B', 201, int)
568#define BNEPGETCONNLIST _IOR('B', 210, int)
569#define BNEPGETCONNINFO _IOR('B', 211, int)
570
571#define CMTPCONNADD _IOW('C', 200, int)
572#define CMTPCONNDEL _IOW('C', 201, int)
573#define CMTPGETCONNLIST _IOR('C', 210, int)
574#define CMTPGETCONNINFO _IOR('C', 211, int)
575
576#define HIDPCONNADD _IOW('H', 200, int)
577#define HIDPCONNDEL _IOW('H', 201, int)
578#define HIDPGETCONNLIST _IOR('H', 210, int)
579#define HIDPGETCONNINFO _IOR('H', 211, int)
580
581
582struct serial_struct32 {
583        compat_int_t type;
584        compat_int_t line;
585        compat_uint_t port;
586        compat_int_t irq;
587        compat_int_t flags;
588        compat_int_t xmit_fifo_size;
589        compat_int_t custom_divisor;
590        compat_int_t baud_base;
591        unsigned short close_delay;
592        char io_type;
593        char reserved_char[1];
594        compat_int_t hub6;
595        unsigned short closing_wait; /* time to wait before closing */
596        unsigned short closing_wait2; /* no longer used... */
597        compat_uint_t iomem_base;
598        unsigned short iomem_reg_shift;
599        unsigned int port_high;
600     /* compat_ulong_t iomap_base FIXME */
601        compat_int_t reserved[1];
602};
603
604static int serial_struct_ioctl(unsigned fd, unsigned cmd,
605            struct serial_struct32 __user *ss32)
606{
607        typedef struct serial_struct SS;
608        typedef struct serial_struct32 SS32;
609        int err;
610        struct serial_struct ss;
611        mm_segment_t oldseg = get_fs();
612        __u32 udata;
613    unsigned int base;
614
615        if (cmd == TIOCSSERIAL) {
616                if (!access_ok(VERIFY_READ, ss32, sizeof(SS32)))
617                        return -EFAULT;
618                if (__copy_from_user(&ss, ss32, offsetof(SS32, iomem_base)))
619            return -EFAULT;
620                if (__get_user(udata, &ss32->iomem_base))
621            return -EFAULT;
622                ss.iomem_base = compat_ptr(udata);
623                if (__get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) ||
624            __get_user(ss.port_high, &ss32->port_high))
625            return -EFAULT;
626                ss.iomap_base = 0UL;
627        }
628        set_fs(KERNEL_DS);
629                err = sys_ioctl(fd,cmd,(unsigned long)(&ss));
630        set_fs(oldseg);
631        if (cmd == TIOCGSERIAL && err >= 0) {
632                if (!access_ok(VERIFY_WRITE, ss32, sizeof(SS32)))
633                        return -EFAULT;
634                if (__copy_to_user(ss32,&ss,offsetof(SS32,iomem_base)))
635            return -EFAULT;
636        base = (unsigned long)ss.iomem_base >> 32 ?
637            0xffffffff : (unsigned)(unsigned long)ss.iomem_base;
638        if (__put_user(base, &ss32->iomem_base) ||
639            __put_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) ||
640            __put_user(ss.port_high, &ss32->port_high))
641            return -EFAULT;
642        }
643        return err;
644}
645
646/*
647 * I2C layer ioctls
648 */
649
650struct i2c_msg32 {
651    u16 addr;
652    u16 flags;
653    u16 len;
654    compat_caddr_t buf;
655};
656
657struct i2c_rdwr_ioctl_data32 {
658    compat_caddr_t msgs; /* struct i2c_msg __user *msgs */
659    u32 nmsgs;
660};
661
662struct i2c_smbus_ioctl_data32 {
663    u8 read_write;
664    u8 command;
665    u32 size;
666    compat_caddr_t data; /* union i2c_smbus_data *data */
667};
668
669struct i2c_rdwr_aligned {
670    struct i2c_rdwr_ioctl_data cmd;
671    struct i2c_msg msgs[0];
672};
673
674static int do_i2c_rdwr_ioctl(unsigned int fd, unsigned int cmd,
675            struct i2c_rdwr_ioctl_data32 __user *udata)
676{
677    struct i2c_rdwr_aligned __user *tdata;
678    struct i2c_msg __user *tmsgs;
679    struct i2c_msg32 __user *umsgs;
680    compat_caddr_t datap;
681    int nmsgs, i;
682
683    if (get_user(nmsgs, &udata->nmsgs))
684        return -EFAULT;
685    if (nmsgs > I2C_RDRW_IOCTL_MAX_MSGS)
686        return -EINVAL;
687
688    if (get_user(datap, &udata->msgs))
689        return -EFAULT;
690    umsgs = compat_ptr(datap);
691
692    tdata = compat_alloc_user_space(sizeof(*tdata) +
693                      nmsgs * sizeof(struct i2c_msg));
694    tmsgs = &tdata->msgs[0];
695
696    if (put_user(nmsgs, &tdata->cmd.nmsgs) ||
697        put_user(tmsgs, &tdata->cmd.msgs))
698        return -EFAULT;
699
700    for (i = 0; i < nmsgs; i++) {
701        if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
702            return -EFAULT;
703        if (get_user(datap, &umsgs[i].buf) ||
704            put_user(compat_ptr(datap), &tmsgs[i].buf))
705            return -EFAULT;
706    }
707    return sys_ioctl(fd, cmd, (unsigned long)tdata);
708}
709
710static int do_i2c_smbus_ioctl(unsigned int fd, unsigned int cmd,
711            struct i2c_smbus_ioctl_data32 __user *udata)
712{
713    struct i2c_smbus_ioctl_data __user *tdata;
714    compat_caddr_t datap;
715
716    tdata = compat_alloc_user_space(sizeof(*tdata));
717    if (tdata == NULL)
718        return -ENOMEM;
719    if (!access_ok(VERIFY_WRITE, tdata, sizeof(*tdata)))
720        return -EFAULT;
721
722    if (!access_ok(VERIFY_READ, udata, sizeof(*udata)))
723        return -EFAULT;
724
725    if (__copy_in_user(&tdata->read_write, &udata->read_write, 2 * sizeof(u8)))
726        return -EFAULT;
727    if (__copy_in_user(&tdata->size, &udata->size, 2 * sizeof(u32)))
728        return -EFAULT;
729    if (__get_user(datap, &udata->data) ||
730        __put_user(compat_ptr(datap), &tdata->data))
731        return -EFAULT;
732
733    return sys_ioctl(fd, cmd, (unsigned long)tdata);
734}
735
736#define RTC_IRQP_READ32 _IOR('p', 0x0b, compat_ulong_t)
737#define RTC_IRQP_SET32 _IOW('p', 0x0c, compat_ulong_t)
738#define RTC_EPOCH_READ32 _IOR('p', 0x0d, compat_ulong_t)
739#define RTC_EPOCH_SET32 _IOW('p', 0x0e, compat_ulong_t)
740
741static int rtc_ioctl(unsigned fd, unsigned cmd, void __user *argp)
742{
743    mm_segment_t oldfs = get_fs();
744    compat_ulong_t val32;
745    unsigned long kval;
746    int ret;
747
748    switch (cmd) {
749    case RTC_IRQP_READ32:
750    case RTC_EPOCH_READ32:
751        set_fs(KERNEL_DS);
752        ret = sys_ioctl(fd, (cmd == RTC_IRQP_READ32) ?
753                    RTC_IRQP_READ : RTC_EPOCH_READ,
754                    (unsigned long)&kval);
755        set_fs(oldfs);
756        if (ret)
757            return ret;
758        val32 = kval;
759        return put_user(val32, (unsigned int __user *)argp);
760    case RTC_IRQP_SET32:
761        return sys_ioctl(fd, RTC_IRQP_SET, (unsigned long)argp);
762    case RTC_EPOCH_SET32:
763        return sys_ioctl(fd, RTC_EPOCH_SET, (unsigned long)argp);
764    }
765
766    return -ENOIOCTLCMD;
767}
768
769/* on ia32 l_start is on a 32-bit boundary */
770#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
771struct space_resv_32 {
772    __s16 l_type;
773    __s16 l_whence;
774    __s64 l_start __attribute__((packed));
775            /* len == 0 means until end of file */
776    __s64 l_len __attribute__((packed));
777    __s32 l_sysid;
778    __u32 l_pid;
779    __s32 l_pad[4]; /* reserve area */
780};
781
782#define FS_IOC_RESVSP_32 _IOW ('X', 40, struct space_resv_32)
783#define FS_IOC_RESVSP64_32 _IOW ('X', 42, struct space_resv_32)
784
785/* just account for different alignment */
786static int compat_ioctl_preallocate(struct file *file,
787            struct space_resv_32 __user *p32)
788{
789    struct space_resv __user *p = compat_alloc_user_space(sizeof(*p));
790
791    if (copy_in_user(&p->l_type, &p32->l_type, sizeof(s16)) ||
792        copy_in_user(&p->l_whence, &p32->l_whence, sizeof(s16)) ||
793        copy_in_user(&p->l_start, &p32->l_start, sizeof(s64)) ||
794        copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) ||
795        copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) ||
796        copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) ||
797        copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
798        return -EFAULT;
799
800    return ioctl_preallocate(file, p);
801}
802#endif
803
804/*
805 * simple reversible transform to make our table more evenly
806 * distributed after sorting.
807 */
808#define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff)
809
810#define COMPATIBLE_IOCTL(cmd) XFORM(cmd),
811/* ioctl should not be warned about even if it's not implemented.
812   Valid reasons to use this:
813   - It is implemented with ->compat_ioctl on some device, but programs
814   call it on others too.
815   - The ioctl is not implemented in the native kernel, but programs
816   call it commonly anyways.
817   Most other reasons are not valid. */
818#define IGNORE_IOCTL(cmd) COMPATIBLE_IOCTL(cmd)
819
820static unsigned int ioctl_pointer[] = {
821/* compatible ioctls first */
822COMPATIBLE_IOCTL(0x4B50) /* KDGHWCLK - not in the kernel, but don't complain */
823COMPATIBLE_IOCTL(0x4B51) /* KDSHWCLK - not in the kernel, but don't complain */
824
825/* Big T */
826COMPATIBLE_IOCTL(TCGETA)
827COMPATIBLE_IOCTL(TCSETA)
828COMPATIBLE_IOCTL(TCSETAW)
829COMPATIBLE_IOCTL(TCSETAF)
830COMPATIBLE_IOCTL(TCSBRK)
831COMPATIBLE_IOCTL(TCXONC)
832COMPATIBLE_IOCTL(TCFLSH)
833COMPATIBLE_IOCTL(TCGETS)
834COMPATIBLE_IOCTL(TCSETS)
835COMPATIBLE_IOCTL(TCSETSW)
836COMPATIBLE_IOCTL(TCSETSF)
837COMPATIBLE_IOCTL(TIOCLINUX)
838COMPATIBLE_IOCTL(TIOCSBRK)
839COMPATIBLE_IOCTL(TIOCGDEV)
840COMPATIBLE_IOCTL(TIOCCBRK)
841COMPATIBLE_IOCTL(TIOCGSID)
842COMPATIBLE_IOCTL(TIOCGICOUNT)
843/* Little t */
844COMPATIBLE_IOCTL(TIOCGETD)
845COMPATIBLE_IOCTL(TIOCSETD)
846COMPATIBLE_IOCTL(TIOCEXCL)
847COMPATIBLE_IOCTL(TIOCNXCL)
848COMPATIBLE_IOCTL(TIOCCONS)
849COMPATIBLE_IOCTL(TIOCGSOFTCAR)
850COMPATIBLE_IOCTL(TIOCSSOFTCAR)
851COMPATIBLE_IOCTL(TIOCSWINSZ)
852COMPATIBLE_IOCTL(TIOCGWINSZ)
853COMPATIBLE_IOCTL(TIOCMGET)
854COMPATIBLE_IOCTL(TIOCMBIC)
855COMPATIBLE_IOCTL(TIOCMBIS)
856COMPATIBLE_IOCTL(TIOCMSET)
857COMPATIBLE_IOCTL(TIOCPKT)
858COMPATIBLE_IOCTL(TIOCNOTTY)
859COMPATIBLE_IOCTL(TIOCSTI)
860COMPATIBLE_IOCTL(TIOCOUTQ)
861COMPATIBLE_IOCTL(TIOCSPGRP)
862COMPATIBLE_IOCTL(TIOCGPGRP)
863COMPATIBLE_IOCTL(TIOCGPTN)
864COMPATIBLE_IOCTL(TIOCSPTLCK)
865COMPATIBLE_IOCTL(TIOCSERGETLSR)
866COMPATIBLE_IOCTL(TIOCSIG)
867#ifdef TCGETS2
868COMPATIBLE_IOCTL(TCGETS2)
869COMPATIBLE_IOCTL(TCSETS2)
870COMPATIBLE_IOCTL(TCSETSW2)
871COMPATIBLE_IOCTL(TCSETSF2)
872#endif
873/* Little f */
874COMPATIBLE_IOCTL(FIOCLEX)
875COMPATIBLE_IOCTL(FIONCLEX)
876COMPATIBLE_IOCTL(FIOASYNC)
877COMPATIBLE_IOCTL(FIONBIO)
878COMPATIBLE_IOCTL(FIONREAD) /* This is also TIOCINQ */
879COMPATIBLE_IOCTL(FS_IOC_FIEMAP)
880/* 0x00 */
881COMPATIBLE_IOCTL(FIBMAP)
882COMPATIBLE_IOCTL(FIGETBSZ)
883/* 'X' - originally XFS but some now in the VFS */
884COMPATIBLE_IOCTL(FIFREEZE)
885COMPATIBLE_IOCTL(FITHAW)
886COMPATIBLE_IOCTL(KDGETKEYCODE)
887COMPATIBLE_IOCTL(KDSETKEYCODE)
888COMPATIBLE_IOCTL(KDGKBTYPE)
889COMPATIBLE_IOCTL(KDGETMODE)
890COMPATIBLE_IOCTL(KDGKBMODE)
891COMPATIBLE_IOCTL(KDGKBMETA)
892COMPATIBLE_IOCTL(KDGKBENT)
893COMPATIBLE_IOCTL(KDSKBENT)
894COMPATIBLE_IOCTL(KDGKBSENT)
895COMPATIBLE_IOCTL(KDSKBSENT)
896COMPATIBLE_IOCTL(KDGKBDIACR)
897COMPATIBLE_IOCTL(KDSKBDIACR)
898COMPATIBLE_IOCTL(KDKBDREP)
899COMPATIBLE_IOCTL(KDGKBLED)
900COMPATIBLE_IOCTL(KDGETLED)
901#ifdef CONFIG_BLOCK
902/* Big S */
903COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)
904COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)
905COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)
906COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)
907COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)
908COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
909COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST)
910COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI)
911#endif
912/* Big V (don't complain on serial console) */
913IGNORE_IOCTL(VT_OPENQRY)
914IGNORE_IOCTL(VT_GETMODE)
915/* Little p (/dev/rtc, /dev/envctrl, etc.) */
916COMPATIBLE_IOCTL(RTC_AIE_ON)
917COMPATIBLE_IOCTL(RTC_AIE_OFF)
918COMPATIBLE_IOCTL(RTC_UIE_ON)
919COMPATIBLE_IOCTL(RTC_UIE_OFF)
920COMPATIBLE_IOCTL(RTC_PIE_ON)
921COMPATIBLE_IOCTL(RTC_PIE_OFF)
922COMPATIBLE_IOCTL(RTC_WIE_ON)
923COMPATIBLE_IOCTL(RTC_WIE_OFF)
924COMPATIBLE_IOCTL(RTC_ALM_SET)
925COMPATIBLE_IOCTL(RTC_ALM_READ)
926COMPATIBLE_IOCTL(RTC_RD_TIME)
927COMPATIBLE_IOCTL(RTC_SET_TIME)
928COMPATIBLE_IOCTL(RTC_WKALM_SET)
929COMPATIBLE_IOCTL(RTC_WKALM_RD)
930/*
931 * These two are only for the sbus rtc driver, but
932 * hwclock tries them on every rtc device first when
933 * running on sparc. On other architectures the entries
934 * are useless but harmless.
935 */
936COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
937COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
938/* Little m */
939COMPATIBLE_IOCTL(MTIOCTOP)
940/* Socket level stuff */
941COMPATIBLE_IOCTL(FIOQSIZE)
942#ifdef CONFIG_BLOCK
943/* loop */
944IGNORE_IOCTL(LOOP_CLR_FD)
945/* md calls this on random blockdevs */
946IGNORE_IOCTL(RAID_VERSION)
947/* SG stuff */
948COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
949COMPATIBLE_IOCTL(SG_GET_TIMEOUT)
950COMPATIBLE_IOCTL(SG_EMULATED_HOST)
951COMPATIBLE_IOCTL(SG_GET_TRANSFORM)
952COMPATIBLE_IOCTL(SG_SET_RESERVED_SIZE)
953COMPATIBLE_IOCTL(SG_GET_RESERVED_SIZE)
954COMPATIBLE_IOCTL(SG_GET_SCSI_ID)
955COMPATIBLE_IOCTL(SG_SET_FORCE_LOW_DMA)
956COMPATIBLE_IOCTL(SG_GET_LOW_DMA)
957COMPATIBLE_IOCTL(SG_SET_FORCE_PACK_ID)
958COMPATIBLE_IOCTL(SG_GET_PACK_ID)
959COMPATIBLE_IOCTL(SG_GET_NUM_WAITING)
960COMPATIBLE_IOCTL(SG_SET_DEBUG)
961COMPATIBLE_IOCTL(SG_GET_SG_TABLESIZE)
962COMPATIBLE_IOCTL(SG_GET_COMMAND_Q)
963COMPATIBLE_IOCTL(SG_SET_COMMAND_Q)
964COMPATIBLE_IOCTL(SG_GET_VERSION_NUM)
965COMPATIBLE_IOCTL(SG_NEXT_CMD_LEN)
966COMPATIBLE_IOCTL(SG_SCSI_RESET)
967COMPATIBLE_IOCTL(SG_GET_REQUEST_TABLE)
968COMPATIBLE_IOCTL(SG_SET_KEEP_ORPHAN)
969COMPATIBLE_IOCTL(SG_GET_KEEP_ORPHAN)
970#endif
971/* PPP stuff */
972COMPATIBLE_IOCTL(PPPIOCGFLAGS)
973COMPATIBLE_IOCTL(PPPIOCSFLAGS)
974COMPATIBLE_IOCTL(PPPIOCGASYNCMAP)
975COMPATIBLE_IOCTL(PPPIOCSASYNCMAP)
976COMPATIBLE_IOCTL(PPPIOCGUNIT)
977COMPATIBLE_IOCTL(PPPIOCGRASYNCMAP)
978COMPATIBLE_IOCTL(PPPIOCSRASYNCMAP)
979COMPATIBLE_IOCTL(PPPIOCGMRU)
980COMPATIBLE_IOCTL(PPPIOCSMRU)
981COMPATIBLE_IOCTL(PPPIOCSMAXCID)
982COMPATIBLE_IOCTL(PPPIOCGXASYNCMAP)
983COMPATIBLE_IOCTL(PPPIOCSXASYNCMAP)
984COMPATIBLE_IOCTL(PPPIOCXFERUNIT)
985/* PPPIOCSCOMPRESS is translated */
986COMPATIBLE_IOCTL(PPPIOCGNPMODE)
987COMPATIBLE_IOCTL(PPPIOCSNPMODE)
988COMPATIBLE_IOCTL(PPPIOCGDEBUG)
989COMPATIBLE_IOCTL(PPPIOCSDEBUG)
990/* PPPIOCSPASS is translated */
991/* PPPIOCSACTIVE is translated */
992/* PPPIOCGIDLE is translated */
993COMPATIBLE_IOCTL(PPPIOCNEWUNIT)
994COMPATIBLE_IOCTL(PPPIOCATTACH)
995COMPATIBLE_IOCTL(PPPIOCDETACH)
996COMPATIBLE_IOCTL(PPPIOCSMRRU)
997COMPATIBLE_IOCTL(PPPIOCCONNECT)
998COMPATIBLE_IOCTL(PPPIOCDISCONN)
999COMPATIBLE_IOCTL(PPPIOCATTCHAN)
1000COMPATIBLE_IOCTL(PPPIOCGCHAN)
1001/* PPPOX */
1002COMPATIBLE_IOCTL(PPPOEIOCSFWD)
1003COMPATIBLE_IOCTL(PPPOEIOCDFWD)
1004/* ppdev */
1005COMPATIBLE_IOCTL(PPSETMODE)
1006COMPATIBLE_IOCTL(PPRSTATUS)
1007COMPATIBLE_IOCTL(PPRCONTROL)
1008COMPATIBLE_IOCTL(PPWCONTROL)
1009COMPATIBLE_IOCTL(PPFCONTROL)
1010COMPATIBLE_IOCTL(PPRDATA)
1011COMPATIBLE_IOCTL(PPWDATA)
1012COMPATIBLE_IOCTL(PPCLAIM)
1013COMPATIBLE_IOCTL(PPRELEASE)
1014COMPATIBLE_IOCTL(PPYIELD)
1015COMPATIBLE_IOCTL(PPEXCL)
1016COMPATIBLE_IOCTL(PPDATADIR)
1017COMPATIBLE_IOCTL(PPNEGOT)
1018COMPATIBLE_IOCTL(PPWCTLONIRQ)
1019COMPATIBLE_IOCTL(PPCLRIRQ)
1020COMPATIBLE_IOCTL(PPSETPHASE)
1021COMPATIBLE_IOCTL(PPGETMODES)
1022COMPATIBLE_IOCTL(PPGETMODE)
1023COMPATIBLE_IOCTL(PPGETPHASE)
1024COMPATIBLE_IOCTL(PPGETFLAGS)
1025COMPATIBLE_IOCTL(PPSETFLAGS)
1026/* Big A */
1027/* sparc only */
1028/* Big Q for sound/OSS */
1029COMPATIBLE_IOCTL(SNDCTL_SEQ_RESET)
1030COMPATIBLE_IOCTL(SNDCTL_SEQ_SYNC)
1031COMPATIBLE_IOCTL(SNDCTL_SYNTH_INFO)
1032COMPATIBLE_IOCTL(SNDCTL_SEQ_CTRLRATE)
1033COMPATIBLE_IOCTL(SNDCTL_SEQ_GETOUTCOUNT)
1034COMPATIBLE_IOCTL(SNDCTL_SEQ_GETINCOUNT)
1035COMPATIBLE_IOCTL(SNDCTL_SEQ_PERCMODE)
1036COMPATIBLE_IOCTL(SNDCTL_FM_LOAD_INSTR)
1037COMPATIBLE_IOCTL(SNDCTL_SEQ_TESTMIDI)
1038COMPATIBLE_IOCTL(SNDCTL_SEQ_RESETSAMPLES)
1039COMPATIBLE_IOCTL(SNDCTL_SEQ_NRSYNTHS)
1040COMPATIBLE_IOCTL(SNDCTL_SEQ_NRMIDIS)
1041COMPATIBLE_IOCTL(SNDCTL_MIDI_INFO)
1042COMPATIBLE_IOCTL(SNDCTL_SEQ_THRESHOLD)
1043COMPATIBLE_IOCTL(SNDCTL_SYNTH_MEMAVL)
1044COMPATIBLE_IOCTL(SNDCTL_FM_4OP_ENABLE)
1045COMPATIBLE_IOCTL(SNDCTL_SEQ_PANIC)
1046COMPATIBLE_IOCTL(SNDCTL_SEQ_OUTOFBAND)
1047COMPATIBLE_IOCTL(SNDCTL_SEQ_GETTIME)
1048COMPATIBLE_IOCTL(SNDCTL_SYNTH_ID)
1049COMPATIBLE_IOCTL(SNDCTL_SYNTH_CONTROL)
1050COMPATIBLE_IOCTL(SNDCTL_SYNTH_REMOVESAMPLE)
1051/* Big T for sound/OSS */
1052COMPATIBLE_IOCTL(SNDCTL_TMR_TIMEBASE)
1053COMPATIBLE_IOCTL(SNDCTL_TMR_START)
1054COMPATIBLE_IOCTL(SNDCTL_TMR_STOP)
1055COMPATIBLE_IOCTL(SNDCTL_TMR_CONTINUE)
1056COMPATIBLE_IOCTL(SNDCTL_TMR_TEMPO)
1057COMPATIBLE_IOCTL(SNDCTL_TMR_SOURCE)
1058COMPATIBLE_IOCTL(SNDCTL_TMR_METRONOME)
1059COMPATIBLE_IOCTL(SNDCTL_TMR_SELECT)
1060/* Little m for sound/OSS */
1061COMPATIBLE_IOCTL(SNDCTL_MIDI_PRETIME)
1062COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUMODE)
1063COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUCMD)
1064/* Big P for sound/OSS */
1065COMPATIBLE_IOCTL(SNDCTL_DSP_RESET)
1066COMPATIBLE_IOCTL(SNDCTL_DSP_SYNC)
1067COMPATIBLE_IOCTL(SNDCTL_DSP_SPEED)
1068COMPATIBLE_IOCTL(SNDCTL_DSP_STEREO)
1069COMPATIBLE_IOCTL(SNDCTL_DSP_GETBLKSIZE)
1070COMPATIBLE_IOCTL(SNDCTL_DSP_CHANNELS)
1071COMPATIBLE_IOCTL(SOUND_PCM_WRITE_FILTER)
1072COMPATIBLE_IOCTL(SNDCTL_DSP_POST)
1073COMPATIBLE_IOCTL(SNDCTL_DSP_SUBDIVIDE)
1074COMPATIBLE_IOCTL(SNDCTL_DSP_SETFRAGMENT)
1075COMPATIBLE_IOCTL(SNDCTL_DSP_GETFMTS)
1076COMPATIBLE_IOCTL(SNDCTL_DSP_SETFMT)
1077COMPATIBLE_IOCTL(SNDCTL_DSP_GETOSPACE)
1078COMPATIBLE_IOCTL(SNDCTL_DSP_GETISPACE)
1079COMPATIBLE_IOCTL(SNDCTL_DSP_NONBLOCK)
1080COMPATIBLE_IOCTL(SNDCTL_DSP_GETCAPS)
1081COMPATIBLE_IOCTL(SNDCTL_DSP_GETTRIGGER)
1082COMPATIBLE_IOCTL(SNDCTL_DSP_SETTRIGGER)
1083COMPATIBLE_IOCTL(SNDCTL_DSP_GETIPTR)
1084COMPATIBLE_IOCTL(SNDCTL_DSP_GETOPTR)
1085/* SNDCTL_DSP_MAPINBUF, XXX needs translation */
1086/* SNDCTL_DSP_MAPOUTBUF, XXX needs translation */
1087COMPATIBLE_IOCTL(SNDCTL_DSP_SETSYNCRO)
1088COMPATIBLE_IOCTL(SNDCTL_DSP_SETDUPLEX)
1089COMPATIBLE_IOCTL(SNDCTL_DSP_GETODELAY)
1090COMPATIBLE_IOCTL(SNDCTL_DSP_PROFILE)
1091COMPATIBLE_IOCTL(SOUND_PCM_READ_RATE)
1092COMPATIBLE_IOCTL(SOUND_PCM_READ_CHANNELS)
1093COMPATIBLE_IOCTL(SOUND_PCM_READ_BITS)
1094COMPATIBLE_IOCTL(SOUND_PCM_READ_FILTER)
1095/* Big C for sound/OSS */
1096COMPATIBLE_IOCTL(SNDCTL_COPR_RESET)
1097COMPATIBLE_IOCTL(SNDCTL_COPR_LOAD)
1098COMPATIBLE_IOCTL(SNDCTL_COPR_RDATA)
1099COMPATIBLE_IOCTL(SNDCTL_COPR_RCODE)
1100COMPATIBLE_IOCTL(SNDCTL_COPR_WDATA)
1101COMPATIBLE_IOCTL(SNDCTL_COPR_WCODE)
1102COMPATIBLE_IOCTL(SNDCTL_COPR_RUN)
1103COMPATIBLE_IOCTL(SNDCTL_COPR_HALT)
1104COMPATIBLE_IOCTL(SNDCTL_COPR_SENDMSG)
1105COMPATIBLE_IOCTL(SNDCTL_COPR_RCVMSG)
1106/* Big M for sound/OSS */
1107COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME)
1108COMPATIBLE_IOCTL(SOUND_MIXER_READ_BASS)
1109COMPATIBLE_IOCTL(SOUND_MIXER_READ_TREBLE)
1110COMPATIBLE_IOCTL(SOUND_MIXER_READ_SYNTH)
1111COMPATIBLE_IOCTL(SOUND_MIXER_READ_PCM)
1112COMPATIBLE_IOCTL(SOUND_MIXER_READ_SPEAKER)
1113COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE)
1114COMPATIBLE_IOCTL(SOUND_MIXER_READ_MIC)
1115COMPATIBLE_IOCTL(SOUND_MIXER_READ_CD)
1116COMPATIBLE_IOCTL(SOUND_MIXER_READ_IMIX)
1117COMPATIBLE_IOCTL(SOUND_MIXER_READ_ALTPCM)
1118COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECLEV)
1119COMPATIBLE_IOCTL(SOUND_MIXER_READ_IGAIN)
1120COMPATIBLE_IOCTL(SOUND_MIXER_READ_OGAIN)
1121COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE1)
1122COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE2)
1123COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE3)
1124COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL1))
1125COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL2))
1126COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL3))
1127COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEIN))
1128COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEOUT))
1129COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_VIDEO))
1130COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_RADIO))
1131COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_MONITOR))
1132COMPATIBLE_IOCTL(SOUND_MIXER_READ_MUTE)
1133/* SOUND_MIXER_READ_ENHANCE, same value as READ_MUTE */
1134/* SOUND_MIXER_READ_LOUD, same value as READ_MUTE */
1135COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECSRC)
1136COMPATIBLE_IOCTL(SOUND_MIXER_READ_DEVMASK)
1137COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECMASK)
1138COMPATIBLE_IOCTL(SOUND_MIXER_READ_STEREODEVS)
1139COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS)
1140COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_VOLUME)
1141COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_BASS)
1142COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_TREBLE)
1143COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SYNTH)
1144COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_PCM)
1145COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SPEAKER)
1146COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE)
1147COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MIC)
1148COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_CD)
1149COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IMIX)
1150COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_ALTPCM)
1151COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECLEV)
1152COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IGAIN)
1153COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_OGAIN)
1154COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE1)
1155COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE2)
1156COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE3)
1157COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL1))
1158COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL2))
1159COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL3))
1160COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEIN))
1161COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEOUT))
1162COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_VIDEO))
1163COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_RADIO))
1164COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_MONITOR))
1165COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MUTE)
1166/* SOUND_MIXER_WRITE_ENHANCE, same value as WRITE_MUTE */
1167/* SOUND_MIXER_WRITE_LOUD, same value as WRITE_MUTE */
1168COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECSRC)
1169COMPATIBLE_IOCTL(SOUND_MIXER_INFO)
1170COMPATIBLE_IOCTL(SOUND_OLD_MIXER_INFO)
1171COMPATIBLE_IOCTL(SOUND_MIXER_ACCESS)
1172COMPATIBLE_IOCTL(SOUND_MIXER_AGC)
1173COMPATIBLE_IOCTL(SOUND_MIXER_3DSE)
1174COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE1)
1175COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE2)
1176COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE3)
1177COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE4)
1178COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5)
1179COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS)
1180COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS)
1181COMPATIBLE_IOCTL(OSS_GETVERSION)
1182/* Raw devices */
1183COMPATIBLE_IOCTL(RAW_SETBIND)
1184COMPATIBLE_IOCTL(RAW_GETBIND)
1185/* Watchdog */
1186COMPATIBLE_IOCTL(WDIOC_GETSUPPORT)
1187COMPATIBLE_IOCTL(WDIOC_GETSTATUS)
1188COMPATIBLE_IOCTL(WDIOC_GETBOOTSTATUS)
1189COMPATIBLE_IOCTL(WDIOC_GETTEMP)
1190COMPATIBLE_IOCTL(WDIOC_SETOPTIONS)
1191COMPATIBLE_IOCTL(WDIOC_KEEPALIVE)
1192COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT)
1193COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT)
1194/* Big R */
1195COMPATIBLE_IOCTL(RNDGETENTCNT)
1196COMPATIBLE_IOCTL(RNDADDTOENTCNT)
1197COMPATIBLE_IOCTL(RNDGETPOOL)
1198COMPATIBLE_IOCTL(RNDADDENTROPY)
1199COMPATIBLE_IOCTL(RNDZAPENTCNT)
1200COMPATIBLE_IOCTL(RNDCLEARPOOL)
1201/* Bluetooth */
1202COMPATIBLE_IOCTL(HCIDEVUP)
1203COMPATIBLE_IOCTL(HCIDEVDOWN)
1204COMPATIBLE_IOCTL(HCIDEVRESET)
1205COMPATIBLE_IOCTL(HCIDEVRESTAT)
1206COMPATIBLE_IOCTL(HCIGETDEVLIST)
1207COMPATIBLE_IOCTL(HCIGETDEVINFO)
1208COMPATIBLE_IOCTL(HCIGETCONNLIST)
1209COMPATIBLE_IOCTL(HCIGETCONNINFO)
1210COMPATIBLE_IOCTL(HCIGETAUTHINFO)
1211COMPATIBLE_IOCTL(HCISETRAW)
1212COMPATIBLE_IOCTL(HCISETSCAN)
1213COMPATIBLE_IOCTL(HCISETAUTH)
1214COMPATIBLE_IOCTL(HCISETENCRYPT)
1215COMPATIBLE_IOCTL(HCISETPTYPE)
1216COMPATIBLE_IOCTL(HCISETLINKPOL)
1217COMPATIBLE_IOCTL(HCISETLINKMODE)
1218COMPATIBLE_IOCTL(HCISETACLMTU)
1219COMPATIBLE_IOCTL(HCISETSCOMTU)
1220COMPATIBLE_IOCTL(HCIBLOCKADDR)
1221COMPATIBLE_IOCTL(HCIUNBLOCKADDR)
1222COMPATIBLE_IOCTL(HCIINQUIRY)
1223COMPATIBLE_IOCTL(HCIUARTSETPROTO)
1224COMPATIBLE_IOCTL(HCIUARTGETPROTO)
1225COMPATIBLE_IOCTL(RFCOMMCREATEDEV)
1226COMPATIBLE_IOCTL(RFCOMMRELEASEDEV)
1227COMPATIBLE_IOCTL(RFCOMMGETDEVLIST)
1228COMPATIBLE_IOCTL(RFCOMMGETDEVINFO)
1229COMPATIBLE_IOCTL(RFCOMMSTEALDLC)
1230COMPATIBLE_IOCTL(BNEPCONNADD)
1231COMPATIBLE_IOCTL(BNEPCONNDEL)
1232COMPATIBLE_IOCTL(BNEPGETCONNLIST)
1233COMPATIBLE_IOCTL(BNEPGETCONNINFO)
1234COMPATIBLE_IOCTL(CMTPCONNADD)
1235COMPATIBLE_IOCTL(CMTPCONNDEL)
1236COMPATIBLE_IOCTL(CMTPGETCONNLIST)
1237COMPATIBLE_IOCTL(CMTPGETCONNINFO)
1238COMPATIBLE_IOCTL(HIDPCONNADD)
1239COMPATIBLE_IOCTL(HIDPCONNDEL)
1240COMPATIBLE_IOCTL(HIDPGETCONNLIST)
1241COMPATIBLE_IOCTL(HIDPGETCONNINFO)
1242/* CAPI */
1243COMPATIBLE_IOCTL(CAPI_REGISTER)
1244COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER)
1245COMPATIBLE_IOCTL(CAPI_GET_VERSION)
1246COMPATIBLE_IOCTL(CAPI_GET_SERIAL)
1247COMPATIBLE_IOCTL(CAPI_GET_PROFILE)
1248COMPATIBLE_IOCTL(CAPI_MANUFACTURER_CMD)
1249COMPATIBLE_IOCTL(CAPI_GET_ERRCODE)
1250COMPATIBLE_IOCTL(CAPI_INSTALLED)
1251COMPATIBLE_IOCTL(CAPI_GET_FLAGS)
1252COMPATIBLE_IOCTL(CAPI_SET_FLAGS)
1253COMPATIBLE_IOCTL(CAPI_CLR_FLAGS)
1254COMPATIBLE_IOCTL(CAPI_NCCI_OPENCOUNT)
1255COMPATIBLE_IOCTL(CAPI_NCCI_GETUNIT)
1256/* Siemens Gigaset */
1257COMPATIBLE_IOCTL(GIGASET_REDIR)
1258COMPATIBLE_IOCTL(GIGASET_CONFIG)
1259COMPATIBLE_IOCTL(GIGASET_BRKCHARS)
1260COMPATIBLE_IOCTL(GIGASET_VERSION)
1261/* Misc. */
1262COMPATIBLE_IOCTL(0x41545900) /* ATYIO_CLKR */
1263COMPATIBLE_IOCTL(0x41545901) /* ATYIO_CLKW */
1264COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
1265COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
1266COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
1267COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)
1268/* NBD */
1269COMPATIBLE_IOCTL(NBD_DO_IT)
1270COMPATIBLE_IOCTL(NBD_CLEAR_SOCK)
1271COMPATIBLE_IOCTL(NBD_CLEAR_QUE)
1272COMPATIBLE_IOCTL(NBD_PRINT_DEBUG)
1273COMPATIBLE_IOCTL(NBD_DISCONNECT)
1274/* i2c */
1275COMPATIBLE_IOCTL(I2C_SLAVE)
1276COMPATIBLE_IOCTL(I2C_SLAVE_FORCE)
1277COMPATIBLE_IOCTL(I2C_TENBIT)
1278COMPATIBLE_IOCTL(I2C_PEC)
1279COMPATIBLE_IOCTL(I2C_RETRIES)
1280COMPATIBLE_IOCTL(I2C_TIMEOUT)
1281/* hiddev */
1282COMPATIBLE_IOCTL(HIDIOCGVERSION)
1283COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
1284COMPATIBLE_IOCTL(HIDIOCGDEVINFO)
1285COMPATIBLE_IOCTL(HIDIOCGSTRING)
1286COMPATIBLE_IOCTL(HIDIOCINITREPORT)
1287COMPATIBLE_IOCTL(HIDIOCGREPORT)
1288COMPATIBLE_IOCTL(HIDIOCSREPORT)
1289COMPATIBLE_IOCTL(HIDIOCGREPORTINFO)
1290COMPATIBLE_IOCTL(HIDIOCGFIELDINFO)
1291COMPATIBLE_IOCTL(HIDIOCGUSAGE)
1292COMPATIBLE_IOCTL(HIDIOCSUSAGE)
1293COMPATIBLE_IOCTL(HIDIOCGUCODE)
1294COMPATIBLE_IOCTL(HIDIOCGFLAG)
1295COMPATIBLE_IOCTL(HIDIOCSFLAG)
1296COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX)
1297COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO)
1298/* dvb */
1299COMPATIBLE_IOCTL(AUDIO_STOP)
1300COMPATIBLE_IOCTL(AUDIO_PLAY)
1301COMPATIBLE_IOCTL(AUDIO_PAUSE)
1302COMPATIBLE_IOCTL(AUDIO_CONTINUE)
1303COMPATIBLE_IOCTL(AUDIO_SELECT_SOURCE)
1304COMPATIBLE_IOCTL(AUDIO_SET_MUTE)
1305COMPATIBLE_IOCTL(AUDIO_SET_AV_SYNC)
1306COMPATIBLE_IOCTL(AUDIO_SET_BYPASS_MODE)
1307COMPATIBLE_IOCTL(AUDIO_CHANNEL_SELECT)
1308COMPATIBLE_IOCTL(AUDIO_GET_STATUS)
1309COMPATIBLE_IOCTL(AUDIO_GET_CAPABILITIES)
1310COMPATIBLE_IOCTL(AUDIO_CLEAR_BUFFER)
1311COMPATIBLE_IOCTL(AUDIO_SET_ID)
1312COMPATIBLE_IOCTL(AUDIO_SET_MIXER)
1313COMPATIBLE_IOCTL(AUDIO_SET_STREAMTYPE)
1314COMPATIBLE_IOCTL(AUDIO_SET_EXT_ID)
1315COMPATIBLE_IOCTL(AUDIO_SET_ATTRIBUTES)
1316COMPATIBLE_IOCTL(AUDIO_SET_KARAOKE)
1317COMPATIBLE_IOCTL(DMX_START)
1318COMPATIBLE_IOCTL(DMX_STOP)
1319COMPATIBLE_IOCTL(DMX_SET_FILTER)
1320COMPATIBLE_IOCTL(DMX_SET_PES_FILTER)
1321COMPATIBLE_IOCTL(DMX_SET_BUFFER_SIZE)
1322COMPATIBLE_IOCTL(DMX_GET_PES_PIDS)
1323COMPATIBLE_IOCTL(DMX_GET_CAPS)
1324COMPATIBLE_IOCTL(DMX_SET_SOURCE)
1325COMPATIBLE_IOCTL(DMX_GET_STC)
1326COMPATIBLE_IOCTL(FE_GET_INFO)
1327COMPATIBLE_IOCTL(FE_DISEQC_RESET_OVERLOAD)
1328COMPATIBLE_IOCTL(FE_DISEQC_SEND_MASTER_CMD)
1329COMPATIBLE_IOCTL(FE_DISEQC_RECV_SLAVE_REPLY)
1330COMPATIBLE_IOCTL(FE_DISEQC_SEND_BURST)
1331COMPATIBLE_IOCTL(FE_SET_TONE)
1332COMPATIBLE_IOCTL(FE_SET_VOLTAGE)
1333COMPATIBLE_IOCTL(FE_ENABLE_HIGH_LNB_VOLTAGE)
1334COMPATIBLE_IOCTL(FE_READ_STATUS)
1335COMPATIBLE_IOCTL(FE_READ_BER)
1336COMPATIBLE_IOCTL(FE_READ_SIGNAL_STRENGTH)
1337COMPATIBLE_IOCTL(FE_READ_SNR)
1338COMPATIBLE_IOCTL(FE_READ_UNCORRECTED_BLOCKS)
1339COMPATIBLE_IOCTL(FE_SET_FRONTEND)
1340COMPATIBLE_IOCTL(FE_GET_FRONTEND)
1341COMPATIBLE_IOCTL(FE_GET_EVENT)
1342COMPATIBLE_IOCTL(FE_DISHNETWORK_SEND_LEGACY_CMD)
1343COMPATIBLE_IOCTL(VIDEO_STOP)
1344COMPATIBLE_IOCTL(VIDEO_PLAY)
1345COMPATIBLE_IOCTL(VIDEO_FREEZE)
1346COMPATIBLE_IOCTL(VIDEO_CONTINUE)
1347COMPATIBLE_IOCTL(VIDEO_SELECT_SOURCE)
1348COMPATIBLE_IOCTL(VIDEO_SET_BLANK)
1349COMPATIBLE_IOCTL(VIDEO_GET_STATUS)
1350COMPATIBLE_IOCTL(VIDEO_SET_DISPLAY_FORMAT)
1351COMPATIBLE_IOCTL(VIDEO_FAST_FORWARD)
1352COMPATIBLE_IOCTL(VIDEO_SLOWMOTION)
1353COMPATIBLE_IOCTL(VIDEO_GET_CAPABILITIES)
1354COMPATIBLE_IOCTL(VIDEO_CLEAR_BUFFER)
1355COMPATIBLE_IOCTL(VIDEO_SET_ID)
1356COMPATIBLE_IOCTL(VIDEO_SET_STREAMTYPE)
1357COMPATIBLE_IOCTL(VIDEO_SET_FORMAT)
1358COMPATIBLE_IOCTL(VIDEO_SET_SYSTEM)
1359COMPATIBLE_IOCTL(VIDEO_SET_HIGHLIGHT)
1360COMPATIBLE_IOCTL(VIDEO_SET_SPU)
1361COMPATIBLE_IOCTL(VIDEO_GET_NAVI)
1362COMPATIBLE_IOCTL(VIDEO_SET_ATTRIBUTES)
1363COMPATIBLE_IOCTL(VIDEO_GET_SIZE)
1364COMPATIBLE_IOCTL(VIDEO_GET_FRAME_RATE)
1365
1366/* joystick */
1367COMPATIBLE_IOCTL(JSIOCGVERSION)
1368COMPATIBLE_IOCTL(JSIOCGAXES)
1369COMPATIBLE_IOCTL(JSIOCGBUTTONS)
1370COMPATIBLE_IOCTL(JSIOCGNAME(0))
1371
1372#ifdef TIOCGLTC
1373COMPATIBLE_IOCTL(TIOCGLTC)
1374COMPATIBLE_IOCTL(TIOCSLTC)
1375#endif
1376#ifdef TIOCSTART
1377/*
1378 * For these two we have definitions in ioctls.h and/or termios.h on
1379 * some architectures but no actual implemention. Some applications
1380 * like bash call them if they are defined in the headers, so we provide
1381 * entries here to avoid syslog message spew.
1382 */
1383COMPATIBLE_IOCTL(TIOCSTART)
1384COMPATIBLE_IOCTL(TIOCSTOP)
1385#endif
1386
1387/* fat 'r' ioctls. These are handled by fat with ->compat_ioctl,
1388   but we don't want warnings on other file systems. So declare
1389   them as compatible here. */
1390#define VFAT_IOCTL_READDIR_BOTH32 _IOR('r', 1, struct compat_dirent[2])
1391#define VFAT_IOCTL_READDIR_SHORT32 _IOR('r', 2, struct compat_dirent[2])
1392
1393IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32)
1394IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32)
1395
1396#ifdef CONFIG_SPARC
1397/* Sparc framebuffers, handled in sbusfb_compat_ioctl() */
1398IGNORE_IOCTL(FBIOGTYPE)
1399IGNORE_IOCTL(FBIOSATTR)
1400IGNORE_IOCTL(FBIOGATTR)
1401IGNORE_IOCTL(FBIOSVIDEO)
1402IGNORE_IOCTL(FBIOGVIDEO)
1403IGNORE_IOCTL(FBIOSCURPOS)
1404IGNORE_IOCTL(FBIOGCURPOS)
1405IGNORE_IOCTL(FBIOGCURMAX)
1406IGNORE_IOCTL(FBIOPUTCMAP32)
1407IGNORE_IOCTL(FBIOGETCMAP32)
1408IGNORE_IOCTL(FBIOSCURSOR32)
1409IGNORE_IOCTL(FBIOGCURSOR32)
1410#endif
1411};
1412
1413/*
1414 * Convert common ioctl arguments based on their command number
1415 *
1416 * Please do not add any code in here. Instead, implement
1417 * a compat_ioctl operation in the place that handleŃ• the
1418 * ioctl for the native case.
1419 */
1420static long do_ioctl_trans(int fd, unsigned int cmd,
1421         unsigned long arg, struct file *file)
1422{
1423    void __user *argp = compat_ptr(arg);
1424
1425    switch (cmd) {
1426    case PPPIOCGIDLE32:
1427        return ppp_gidle(fd, cmd, argp);
1428    case PPPIOCSCOMPRESS32:
1429        return ppp_scompress(fd, cmd, argp);
1430    case PPPIOCSPASS32:
1431    case PPPIOCSACTIVE32:
1432        return ppp_sock_fprog_ioctl_trans(fd, cmd, argp);
1433#ifdef CONFIG_BLOCK
1434    case SG_IO:
1435        return sg_ioctl_trans(fd, cmd, argp);
1436    case SG_GET_REQUEST_TABLE:
1437        return sg_grt_trans(fd, cmd, argp);
1438    case MTIOCGET32:
1439    case MTIOCPOS32:
1440        return mt_ioctl_trans(fd, cmd, argp);
1441#endif
1442    /* Serial */
1443    case TIOCGSERIAL:
1444    case TIOCSSERIAL:
1445        return serial_struct_ioctl(fd, cmd, argp);
1446    /* i2c */
1447    case I2C_FUNCS:
1448        return w_long(fd, cmd, argp);
1449    case I2C_RDWR:
1450        return do_i2c_rdwr_ioctl(fd, cmd, argp);
1451    case I2C_SMBUS:
1452        return do_i2c_smbus_ioctl(fd, cmd, argp);
1453    /* Not implemented in the native kernel */
1454    case RTC_IRQP_READ32:
1455    case RTC_IRQP_SET32:
1456    case RTC_EPOCH_READ32:
1457    case RTC_EPOCH_SET32:
1458        return rtc_ioctl(fd, cmd, argp);
1459
1460    /* dvb */
1461    case VIDEO_GET_EVENT:
1462        return do_video_get_event(fd, cmd, argp);
1463    case VIDEO_STILLPICTURE:
1464        return do_video_stillpicture(fd, cmd, argp);
1465    case VIDEO_SET_SPU_PALETTE:
1466        return do_video_set_spu_palette(fd, cmd, argp);
1467    }
1468
1469    /*
1470     * These take an integer instead of a pointer as 'arg',
1471     * so we must not do a compat_ptr() translation.
1472     */
1473    switch (cmd) {
1474    /* Big T */
1475    case TCSBRKP:
1476    case TIOCMIWAIT:
1477    case TIOCSCTTY:
1478    /* RAID */
1479    case HOT_REMOVE_DISK:
1480    case HOT_ADD_DISK:
1481    case SET_DISK_FAULTY:
1482    case SET_BITMAP_FILE:
1483    /* Big K */
1484    case KDSIGACCEPT:
1485    case KIOCSOUND:
1486    case KDMKTONE:
1487    case KDSETMODE:
1488    case KDSKBMODE:
1489    case KDSKBMETA:
1490    case KDSKBLED:
1491    case KDSETLED:
1492    /* NBD */
1493    case NBD_SET_SOCK:
1494    case NBD_SET_BLKSIZE:
1495    case NBD_SET_SIZE:
1496    case NBD_SET_SIZE_BLOCKS:
1497        return do_vfs_ioctl(file, fd, cmd, arg);
1498    }
1499
1500    return -ENOIOCTLCMD;
1501}
1502
1503static void compat_ioctl_error(struct file *filp, unsigned int fd,
1504        unsigned int cmd, unsigned long arg)
1505{
1506    char buf[10];
1507    char *fn = "?";
1508    char *path;
1509
1510    /* find the name of the device. */
1511    path = (char *)__get_free_page(GFP_KERNEL);
1512    if (path) {
1513        fn = d_path(&filp->f_path, path, PAGE_SIZE);
1514        if (IS_ERR(fn))
1515            fn = "?";
1516    }
1517
1518     sprintf(buf,"'%c'", (cmd>>_IOC_TYPESHIFT) & _IOC_TYPEMASK);
1519    if (!isprint(buf[1]))
1520        sprintf(buf, "%02x", buf[1]);
1521    compat_printk("ioctl32(%s:%d): Unknown cmd fd(%d) "
1522            "cmd(%08x){t:%s;sz:%u} arg(%08x) on %s\n",
1523            current->comm, current->pid,
1524            (int)fd, (unsigned int)cmd, buf,
1525            (cmd >> _IOC_SIZESHIFT) & _IOC_SIZEMASK,
1526            (unsigned int)arg, fn);
1527
1528    if (path)
1529        free_page((unsigned long)path);
1530}
1531
1532static int compat_ioctl_check_table(unsigned int xcmd)
1533{
1534    int i;
1535    const int max = ARRAY_SIZE(ioctl_pointer) - 1;
1536
1537    BUILD_BUG_ON(max >= (1 << 16));
1538
1539    /* guess initial offset into table, assuming a
1540       normalized distribution */
1541    i = ((xcmd >> 16) * max) >> 16;
1542
1543    /* do linear search up first, until greater or equal */
1544    while (ioctl_pointer[i] < xcmd && i < max)
1545        i++;
1546
1547    /* then do linear search down */
1548    while (ioctl_pointer[i] > xcmd && i > 0)
1549        i--;
1550
1551    return ioctl_pointer[i] == xcmd;
1552}
1553
1554asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
1555                unsigned long arg)
1556{
1557    struct file *filp;
1558    int error = -EBADF;
1559    int fput_needed;
1560
1561    filp = fget_light(fd, &fput_needed);
1562    if (!filp)
1563        goto out;
1564
1565    /* RED-PEN how should LSM module know it's handling 32bit? */
1566    error = security_file_ioctl(filp, cmd, arg);
1567    if (error)
1568        goto out_fput;
1569
1570    /*
1571     * To allow the compat_ioctl handlers to be self contained
1572     * we need to check the common ioctls here first.
1573     * Just handle them with the standard handlers below.
1574     */
1575    switch (cmd) {
1576    case FIOCLEX:
1577    case FIONCLEX:
1578    case FIONBIO:
1579    case FIOASYNC:
1580    case FIOQSIZE:
1581        break;
1582
1583#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
1584    case FS_IOC_RESVSP_32:
1585    case FS_IOC_RESVSP64_32:
1586        error = compat_ioctl_preallocate(filp, compat_ptr(arg));
1587        goto out_fput;
1588#else
1589    case FS_IOC_RESVSP:
1590    case FS_IOC_RESVSP64:
1591        error = ioctl_preallocate(filp, compat_ptr(arg));
1592        goto out_fput;
1593#endif
1594
1595    case FIBMAP:
1596    case FIGETBSZ:
1597    case FIONREAD:
1598        if (S_ISREG(filp->f_path.dentry->d_inode->i_mode))
1599            break;
1600        /*FALL THROUGH*/
1601
1602    default:
1603        if (filp->f_op && filp->f_op->compat_ioctl) {
1604            error = filp->f_op->compat_ioctl(filp, cmd, arg);
1605            if (error != -ENOIOCTLCMD)
1606                goto out_fput;
1607        }
1608
1609        if (!filp->f_op || !filp->f_op->unlocked_ioctl)
1610            goto do_ioctl;
1611        break;
1612    }
1613
1614    if (compat_ioctl_check_table(XFORM(cmd)))
1615        goto found_handler;
1616
1617    error = do_ioctl_trans(fd, cmd, arg, filp);
1618    if (error == -ENOIOCTLCMD) {
1619        static int count;
1620
1621        if (++count <= 50)
1622            compat_ioctl_error(filp, fd, cmd, arg);
1623        error = -EINVAL;
1624    }
1625
1626    goto out_fput;
1627
1628 found_handler:
1629    arg = (unsigned long)compat_ptr(arg);
1630 do_ioctl:
1631    error = do_vfs_ioctl(filp, fd, cmd, arg);
1632 out_fput:
1633    fput_light(filp, fput_needed);
1634 out:
1635    return error;
1636}
1637
1638static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
1639{
1640    unsigned int a, b;
1641    a = *(unsigned int *)p;
1642    b = *(unsigned int *)q;
1643    if (a > b)
1644        return 1;
1645    if (a < b)
1646        return -1;
1647    return 0;
1648}
1649
1650static int __init init_sys32_ioctl(void)
1651{
1652    sort(ioctl_pointer, ARRAY_SIZE(ioctl_pointer), sizeof(*ioctl_pointer),
1653        init_sys32_ioctl_cmp, NULL);
1654    return 0;
1655}
1656__initcall(init_sys32_ioctl);
1657

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