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1da177e4 LT |
1 | /* |
2 | * Copyright (C) 2001 Jens Axboe <axboe@suse.de> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public Licens | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111- | |
17 | * | |
18 | */ | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/errno.h> | |
21 | #include <linux/string.h> | |
22 | #include <linux/module.h> | |
23 | #include <linux/blkdev.h> | |
c59ede7b | 24 | #include <linux/capability.h> |
1da177e4 LT |
25 | #include <linux/completion.h> |
26 | #include <linux/cdrom.h> | |
27 | #include <linux/slab.h> | |
28 | #include <linux/times.h> | |
29 | #include <asm/uaccess.h> | |
30 | ||
31 | #include <scsi/scsi.h> | |
32 | #include <scsi/scsi_ioctl.h> | |
33 | #include <scsi/scsi_cmnd.h> | |
34 | ||
35 | /* Command group 3 is reserved and should never be used. */ | |
db4742dd | 36 | const unsigned char scsi_command_size_tbl[8] = |
1da177e4 LT |
37 | { |
38 | 6, 10, 10, 12, | |
39 | 16, 12, 10, 10 | |
40 | }; | |
db4742dd | 41 | EXPORT_SYMBOL(scsi_command_size_tbl); |
1da177e4 | 42 | |
1da177e4 LT |
43 | #include <scsi/sg.h> |
44 | ||
45 | static int sg_get_version(int __user *p) | |
46 | { | |
64100099 | 47 | static const int sg_version_num = 30527; |
1da177e4 LT |
48 | return put_user(sg_version_num, p); |
49 | } | |
50 | ||
165125e1 | 51 | static int scsi_get_idlun(struct request_queue *q, int __user *p) |
1da177e4 LT |
52 | { |
53 | return put_user(0, p); | |
54 | } | |
55 | ||
165125e1 | 56 | static int scsi_get_bus(struct request_queue *q, int __user *p) |
1da177e4 LT |
57 | { |
58 | return put_user(0, p); | |
59 | } | |
60 | ||
165125e1 | 61 | static int sg_get_timeout(struct request_queue *q) |
1da177e4 LT |
62 | { |
63 | return q->sg_timeout / (HZ / USER_HZ); | |
64 | } | |
65 | ||
165125e1 | 66 | static int sg_set_timeout(struct request_queue *q, int __user *p) |
1da177e4 LT |
67 | { |
68 | int timeout, err = get_user(timeout, p); | |
69 | ||
70 | if (!err) | |
71 | q->sg_timeout = timeout * (HZ / USER_HZ); | |
72 | ||
73 | return err; | |
74 | } | |
75 | ||
165125e1 | 76 | static int sg_get_reserved_size(struct request_queue *q, int __user *p) |
1da177e4 | 77 | { |
44ec9542 AS |
78 | unsigned val = min(q->sg_reserved_size, q->max_sectors << 9); |
79 | ||
80 | return put_user(val, p); | |
1da177e4 LT |
81 | } |
82 | ||
165125e1 | 83 | static int sg_set_reserved_size(struct request_queue *q, int __user *p) |
1da177e4 LT |
84 | { |
85 | int size, err = get_user(size, p); | |
86 | ||
87 | if (err) | |
88 | return err; | |
89 | ||
90 | if (size < 0) | |
91 | return -EINVAL; | |
92 | if (size > (q->max_sectors << 9)) | |
93 | size = q->max_sectors << 9; | |
94 | ||
95 | q->sg_reserved_size = size; | |
96 | return 0; | |
97 | } | |
98 | ||
99 | /* | |
100 | * will always return that we are ATAPI even for a real SCSI drive, I'm not | |
101 | * so sure this is worth doing anything about (why would you care??) | |
102 | */ | |
165125e1 | 103 | static int sg_emulated_host(struct request_queue *q, int __user *p) |
1da177e4 LT |
104 | { |
105 | return put_user(1, p); | |
106 | } | |
107 | ||
165125e1 | 108 | static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq, |
0b07de85 | 109 | struct sg_io_hdr *hdr, struct file *file) |
3d6392cf | 110 | { |
3d6392cf JA |
111 | if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len)) |
112 | return -EFAULT; | |
0b07de85 | 113 | if (blk_verify_command(file, rq->cmd)) |
3d6392cf JA |
114 | return -EPERM; |
115 | ||
116 | /* | |
117 | * fill in request structure | |
118 | */ | |
119 | rq->cmd_len = hdr->cmd_len; | |
120 | rq->cmd_type = REQ_TYPE_BLOCK_PC; | |
121 | ||
24bb8fb9 | 122 | rq->timeout = msecs_to_jiffies(hdr->timeout); |
3d6392cf JA |
123 | if (!rq->timeout) |
124 | rq->timeout = q->sg_timeout; | |
125 | if (!rq->timeout) | |
126 | rq->timeout = BLK_DEFAULT_SG_TIMEOUT; | |
127 | ||
128 | return 0; | |
129 | } | |
3d6392cf JA |
130 | |
131 | /* | |
132 | * unmap a request that was previously mapped to this sg_io_hdr. handles | |
133 | * both sg and non-sg sg_io_hdr. | |
134 | */ | |
41e1703b | 135 | static int blk_unmap_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr) |
3d6392cf | 136 | { |
ac6b91b8 | 137 | blk_rq_unmap_user(rq->bio); |
3d6392cf JA |
138 | blk_put_request(rq); |
139 | return 0; | |
140 | } | |
3d6392cf | 141 | |
41e1703b FT |
142 | static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr, |
143 | struct bio *bio) | |
3d6392cf JA |
144 | { |
145 | int r, ret = 0; | |
146 | ||
147 | /* | |
148 | * fill in all the output members | |
149 | */ | |
150 | hdr->status = rq->errors & 0xff; | |
151 | hdr->masked_status = status_byte(rq->errors); | |
152 | hdr->msg_status = msg_byte(rq->errors); | |
153 | hdr->host_status = host_byte(rq->errors); | |
154 | hdr->driver_status = driver_byte(rq->errors); | |
155 | hdr->info = 0; | |
156 | if (hdr->masked_status || hdr->host_status || hdr->driver_status) | |
157 | hdr->info |= SG_INFO_CHECK; | |
7a85f889 | 158 | hdr->resid = rq->data_len; |
3d6392cf JA |
159 | hdr->sb_len_wr = 0; |
160 | ||
161 | if (rq->sense_len && hdr->sbp) { | |
162 | int len = min((unsigned int) hdr->mx_sb_len, rq->sense_len); | |
163 | ||
164 | if (!copy_to_user(hdr->sbp, rq->sense, len)) | |
165 | hdr->sb_len_wr = len; | |
166 | else | |
167 | ret = -EFAULT; | |
168 | } | |
169 | ||
170 | rq->bio = bio; | |
171 | r = blk_unmap_sghdr_rq(rq, hdr); | |
172 | if (ret) | |
173 | r = ret; | |
174 | ||
175 | return r; | |
176 | } | |
3d6392cf | 177 | |
165125e1 | 178 | static int sg_io(struct file *file, struct request_queue *q, |
1da177e4 LT |
179 | struct gendisk *bd_disk, struct sg_io_hdr *hdr) |
180 | { | |
3d6392cf | 181 | unsigned long start_time; |
0b07de85 | 182 | int writing = 0, ret = 0; |
1da177e4 | 183 | struct request *rq; |
1da177e4 | 184 | char sense[SCSI_SENSE_BUFFERSIZE]; |
77d172ce | 185 | struct bio *bio; |
1da177e4 LT |
186 | |
187 | if (hdr->interface_id != 'S') | |
188 | return -EINVAL; | |
189 | if (hdr->cmd_len > BLK_MAX_CDB) | |
190 | return -EINVAL; | |
1da177e4 | 191 | |
defd94b7 | 192 | if (hdr->dxfer_len > (q->max_hw_sectors << 9)) |
1da177e4 LT |
193 | return -EIO; |
194 | ||
f1970baf | 195 | if (hdr->dxfer_len) |
1da177e4 LT |
196 | switch (hdr->dxfer_direction) { |
197 | default: | |
198 | return -EINVAL; | |
1da177e4 LT |
199 | case SG_DXFER_TO_DEV: |
200 | writing = 1; | |
201 | break; | |
616e8a09 | 202 | case SG_DXFER_TO_FROM_DEV: |
1da177e4 | 203 | case SG_DXFER_FROM_DEV: |
1da177e4 LT |
204 | break; |
205 | } | |
206 | ||
dd1cab95 JA |
207 | rq = blk_get_request(q, writing ? WRITE : READ, GFP_KERNEL); |
208 | if (!rq) | |
209 | return -ENOMEM; | |
1da177e4 | 210 | |
0b07de85 | 211 | if (blk_fill_sghdr_rq(q, rq, hdr, file)) { |
3d6392cf JA |
212 | blk_put_request(rq); |
213 | return -EFAULT; | |
214 | } | |
1da177e4 | 215 | |
0e75f906 MC |
216 | if (hdr->iovec_count) { |
217 | const int size = sizeof(struct sg_iovec) * hdr->iovec_count; | |
218 | struct sg_iovec *iov; | |
219 | ||
220 | iov = kmalloc(size, GFP_KERNEL); | |
221 | if (!iov) { | |
222 | ret = -ENOMEM; | |
223 | goto out; | |
224 | } | |
225 | ||
226 | if (copy_from_user(iov, hdr->dxferp, size)) { | |
227 | kfree(iov); | |
228 | ret = -EFAULT; | |
229 | goto out; | |
230 | } | |
231 | ||
232 | ret = blk_rq_map_user_iov(q, rq, iov, hdr->iovec_count, | |
233 | hdr->dxfer_len); | |
234 | kfree(iov); | |
235 | } else if (hdr->dxfer_len) | |
236 | ret = blk_rq_map_user(q, rq, hdr->dxferp, hdr->dxfer_len); | |
237 | ||
238 | if (ret) | |
239 | goto out; | |
240 | ||
77d172ce | 241 | bio = rq->bio; |
3d6392cf JA |
242 | memset(sense, 0, sizeof(sense)); |
243 | rq->sense = sense; | |
244 | rq->sense_len = 0; | |
01840f9c JA |
245 | rq->retries = 0; |
246 | ||
1da177e4 LT |
247 | start_time = jiffies; |
248 | ||
249 | /* ignore return value. All information is passed back to caller | |
250 | * (if he doesn't check that is his problem). | |
251 | * N.B. a non-zero SCSI status is _not_ necessarily an error. | |
252 | */ | |
994ca9a1 | 253 | blk_execute_rq(q, bd_disk, rq, 0); |
1da177e4 | 254 | |
24bb8fb9 | 255 | hdr->duration = jiffies_to_msecs(jiffies - start_time); |
1da177e4 | 256 | |
3d6392cf | 257 | return blk_complete_sghdr_rq(rq, hdr, bio); |
dd1cab95 JA |
258 | out: |
259 | blk_put_request(rq); | |
260 | return ret; | |
1da177e4 LT |
261 | } |
262 | ||
21b2f0c8 CH |
263 | /** |
264 | * sg_scsi_ioctl -- handle deprecated SCSI_IOCTL_SEND_COMMAND ioctl | |
265 | * @file: file this ioctl operates on (optional) | |
266 | * @q: request queue to send scsi commands down | |
267 | * @disk: gendisk to operate on (option) | |
268 | * @sic: userspace structure describing the command to perform | |
269 | * | |
270 | * Send down the scsi command described by @sic to the device below | |
271 | * the request queue @q. If @file is non-NULL it's used to perform | |
272 | * fine-grained permission checks that allow users to send down | |
273 | * non-destructive SCSI commands. If the caller has a struct gendisk | |
274 | * available it should be passed in as @disk to allow the low level | |
275 | * driver to use the information contained in it. A non-NULL @disk | |
276 | * is only allowed if the caller knows that the low level driver doesn't | |
277 | * need it (e.g. in the scsi subsystem). | |
278 | * | |
279 | * Notes: | |
280 | * - This interface is deprecated - users should use the SG_IO | |
281 | * interface instead, as this is a more flexible approach to | |
282 | * performing SCSI commands on a device. | |
283 | * - The SCSI command length is determined by examining the 1st byte | |
284 | * of the given command. There is no way to override this. | |
285 | * - Data transfers are limited to PAGE_SIZE | |
286 | * - The length (x + y) must be at least OMAX_SB_LEN bytes long to | |
287 | * accommodate the sense buffer when an error occurs. | |
288 | * The sense buffer is truncated to OMAX_SB_LEN (16) bytes so that | |
289 | * old code will not be surprised. | |
290 | * - If a Unix error occurs (e.g. ENOMEM) then the user will receive | |
291 | * a negative return and the Unix error code in 'errno'. | |
292 | * If the SCSI command succeeds then 0 is returned. | |
293 | * Positive numbers returned are the compacted SCSI error codes (4 | |
294 | * bytes in one int) where the lowest byte is the SCSI status. | |
295 | */ | |
1da177e4 | 296 | #define OMAX_SB_LEN 16 /* For backward compatibility */ |
21b2f0c8 CH |
297 | int sg_scsi_ioctl(struct file *file, struct request_queue *q, |
298 | struct gendisk *disk, struct scsi_ioctl_command __user *sic) | |
1da177e4 LT |
299 | { |
300 | struct request *rq; | |
301 | int err; | |
302 | unsigned int in_len, out_len, bytes, opcode, cmdlen; | |
303 | char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE]; | |
304 | ||
21b2f0c8 CH |
305 | if (!sic) |
306 | return -EINVAL; | |
307 | ||
1da177e4 LT |
308 | /* |
309 | * get in an out lengths, verify they don't exceed a page worth of data | |
310 | */ | |
311 | if (get_user(in_len, &sic->inlen)) | |
312 | return -EFAULT; | |
313 | if (get_user(out_len, &sic->outlen)) | |
314 | return -EFAULT; | |
315 | if (in_len > PAGE_SIZE || out_len > PAGE_SIZE) | |
316 | return -EINVAL; | |
317 | if (get_user(opcode, sic->data)) | |
318 | return -EFAULT; | |
319 | ||
320 | bytes = max(in_len, out_len); | |
321 | if (bytes) { | |
dd00cc48 | 322 | buffer = kzalloc(bytes, q->bounce_gfp | GFP_USER| __GFP_NOWARN); |
1da177e4 LT |
323 | if (!buffer) |
324 | return -ENOMEM; | |
325 | ||
1da177e4 LT |
326 | } |
327 | ||
328 | rq = blk_get_request(q, in_len ? WRITE : READ, __GFP_WAIT); | |
329 | ||
330 | cmdlen = COMMAND_SIZE(opcode); | |
331 | ||
332 | /* | |
333 | * get command and data to send to device, if any | |
334 | */ | |
335 | err = -EFAULT; | |
336 | rq->cmd_len = cmdlen; | |
337 | if (copy_from_user(rq->cmd, sic->data, cmdlen)) | |
338 | goto error; | |
339 | ||
21b2f0c8 | 340 | if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len)) |
1da177e4 LT |
341 | goto error; |
342 | ||
0b07de85 | 343 | err = blk_verify_command(file, rq->cmd); |
1da177e4 LT |
344 | if (err) |
345 | goto error; | |
346 | ||
21b2f0c8 CH |
347 | /* default. possible overriden later */ |
348 | rq->retries = 5; | |
349 | ||
1da177e4 | 350 | switch (opcode) { |
21b2f0c8 CH |
351 | case SEND_DIAGNOSTIC: |
352 | case FORMAT_UNIT: | |
353 | rq->timeout = FORMAT_UNIT_TIMEOUT; | |
354 | rq->retries = 1; | |
355 | break; | |
356 | case START_STOP: | |
357 | rq->timeout = START_STOP_TIMEOUT; | |
358 | break; | |
359 | case MOVE_MEDIUM: | |
360 | rq->timeout = MOVE_MEDIUM_TIMEOUT; | |
361 | break; | |
362 | case READ_ELEMENT_STATUS: | |
363 | rq->timeout = READ_ELEMENT_STATUS_TIMEOUT; | |
364 | break; | |
365 | case READ_DEFECT_DATA: | |
366 | rq->timeout = READ_DEFECT_DATA_TIMEOUT; | |
367 | rq->retries = 1; | |
368 | break; | |
369 | default: | |
3d6392cf | 370 | rq->timeout = BLK_DEFAULT_SG_TIMEOUT; |
21b2f0c8 CH |
371 | break; |
372 | } | |
373 | ||
374 | if (bytes && blk_rq_map_kern(q, rq, buffer, bytes, __GFP_WAIT)) { | |
375 | err = DRIVER_ERROR << 24; | |
376 | goto out; | |
1da177e4 LT |
377 | } |
378 | ||
379 | memset(sense, 0, sizeof(sense)); | |
380 | rq->sense = sense; | |
381 | rq->sense_len = 0; | |
4aff5e23 | 382 | rq->cmd_type = REQ_TYPE_BLOCK_PC; |
1da177e4 | 383 | |
21b2f0c8 CH |
384 | blk_execute_rq(q, disk, rq, 0); |
385 | ||
386 | out: | |
1da177e4 LT |
387 | err = rq->errors & 0xff; /* only 8 bit SCSI status */ |
388 | if (err) { | |
389 | if (rq->sense_len && rq->sense) { | |
390 | bytes = (OMAX_SB_LEN > rq->sense_len) ? | |
391 | rq->sense_len : OMAX_SB_LEN; | |
392 | if (copy_to_user(sic->data, rq->sense, bytes)) | |
393 | err = -EFAULT; | |
394 | } | |
395 | } else { | |
396 | if (copy_to_user(sic->data, buffer, out_len)) | |
397 | err = -EFAULT; | |
398 | } | |
399 | ||
400 | error: | |
401 | kfree(buffer); | |
402 | blk_put_request(rq); | |
403 | return err; | |
404 | } | |
21b2f0c8 | 405 | EXPORT_SYMBOL_GPL(sg_scsi_ioctl); |
f98d2dfd BC |
406 | |
407 | /* Send basic block requests */ | |
165125e1 JA |
408 | static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk, |
409 | int cmd, int data) | |
f98d2dfd BC |
410 | { |
411 | struct request *rq; | |
412 | int err; | |
413 | ||
414 | rq = blk_get_request(q, WRITE, __GFP_WAIT); | |
4aff5e23 | 415 | rq->cmd_type = REQ_TYPE_BLOCK_PC; |
f98d2dfd BC |
416 | rq->data = NULL; |
417 | rq->data_len = 0; | |
7a85f889 | 418 | rq->extra_len = 0; |
3d6392cf | 419 | rq->timeout = BLK_DEFAULT_SG_TIMEOUT; |
f98d2dfd BC |
420 | rq->cmd[0] = cmd; |
421 | rq->cmd[4] = data; | |
422 | rq->cmd_len = 6; | |
423 | err = blk_execute_rq(q, bd_disk, rq, 0); | |
424 | blk_put_request(rq); | |
425 | ||
426 | return err; | |
427 | } | |
428 | ||
165125e1 JA |
429 | static inline int blk_send_start_stop(struct request_queue *q, |
430 | struct gendisk *bd_disk, int data) | |
f98d2dfd BC |
431 | { |
432 | return __blk_send_generic(q, bd_disk, GPCMD_START_STOP_UNIT, data); | |
433 | } | |
434 | ||
45e79a3a FT |
435 | int scsi_cmd_ioctl(struct file *file, struct request_queue *q, |
436 | struct gendisk *bd_disk, unsigned int cmd, void __user *arg) | |
1da177e4 | 437 | { |
f98d2dfd | 438 | int err; |
1da177e4 | 439 | |
45e79a3a | 440 | if (!q || blk_get_queue(q)) |
1da177e4 LT |
441 | return -ENXIO; |
442 | ||
443 | switch (cmd) { | |
444 | /* | |
445 | * new sgv3 interface | |
446 | */ | |
447 | case SG_GET_VERSION_NUM: | |
448 | err = sg_get_version(arg); | |
449 | break; | |
450 | case SCSI_IOCTL_GET_IDLUN: | |
451 | err = scsi_get_idlun(q, arg); | |
452 | break; | |
453 | case SCSI_IOCTL_GET_BUS_NUMBER: | |
454 | err = scsi_get_bus(q, arg); | |
455 | break; | |
456 | case SG_SET_TIMEOUT: | |
457 | err = sg_set_timeout(q, arg); | |
458 | break; | |
459 | case SG_GET_TIMEOUT: | |
460 | err = sg_get_timeout(q); | |
461 | break; | |
462 | case SG_GET_RESERVED_SIZE: | |
463 | err = sg_get_reserved_size(q, arg); | |
464 | break; | |
465 | case SG_SET_RESERVED_SIZE: | |
466 | err = sg_set_reserved_size(q, arg); | |
467 | break; | |
468 | case SG_EMULATED_HOST: | |
469 | err = sg_emulated_host(q, arg); | |
470 | break; | |
471 | case SG_IO: { | |
472 | struct sg_io_hdr hdr; | |
473 | ||
474 | err = -EFAULT; | |
475 | if (copy_from_user(&hdr, arg, sizeof(hdr))) | |
476 | break; | |
477 | err = sg_io(file, q, bd_disk, &hdr); | |
478 | if (err == -EFAULT) | |
479 | break; | |
480 | ||
481 | if (copy_to_user(arg, &hdr, sizeof(hdr))) | |
482 | err = -EFAULT; | |
483 | break; | |
484 | } | |
485 | case CDROM_SEND_PACKET: { | |
486 | struct cdrom_generic_command cgc; | |
487 | struct sg_io_hdr hdr; | |
488 | ||
489 | err = -EFAULT; | |
490 | if (copy_from_user(&cgc, arg, sizeof(cgc))) | |
491 | break; | |
492 | cgc.timeout = clock_t_to_jiffies(cgc.timeout); | |
493 | memset(&hdr, 0, sizeof(hdr)); | |
494 | hdr.interface_id = 'S'; | |
495 | hdr.cmd_len = sizeof(cgc.cmd); | |
496 | hdr.dxfer_len = cgc.buflen; | |
497 | err = 0; | |
498 | switch (cgc.data_direction) { | |
499 | case CGC_DATA_UNKNOWN: | |
500 | hdr.dxfer_direction = SG_DXFER_UNKNOWN; | |
501 | break; | |
502 | case CGC_DATA_WRITE: | |
503 | hdr.dxfer_direction = SG_DXFER_TO_DEV; | |
504 | break; | |
505 | case CGC_DATA_READ: | |
506 | hdr.dxfer_direction = SG_DXFER_FROM_DEV; | |
507 | break; | |
508 | case CGC_DATA_NONE: | |
509 | hdr.dxfer_direction = SG_DXFER_NONE; | |
510 | break; | |
511 | default: | |
512 | err = -EINVAL; | |
513 | } | |
514 | if (err) | |
515 | break; | |
516 | ||
517 | hdr.dxferp = cgc.buffer; | |
518 | hdr.sbp = cgc.sense; | |
519 | if (hdr.sbp) | |
520 | hdr.mx_sb_len = sizeof(struct request_sense); | |
521 | hdr.timeout = cgc.timeout; | |
522 | hdr.cmdp = ((struct cdrom_generic_command __user*) arg)->cmd; | |
523 | hdr.cmd_len = sizeof(cgc.cmd); | |
524 | ||
525 | err = sg_io(file, q, bd_disk, &hdr); | |
526 | if (err == -EFAULT) | |
527 | break; | |
528 | ||
529 | if (hdr.status) | |
530 | err = -EIO; | |
531 | ||
532 | cgc.stat = err; | |
533 | cgc.buflen = hdr.resid; | |
534 | if (copy_to_user(arg, &cgc, sizeof(cgc))) | |
535 | err = -EFAULT; | |
536 | ||
537 | break; | |
538 | } | |
539 | ||
540 | /* | |
541 | * old junk scsi send command ioctl | |
542 | */ | |
543 | case SCSI_IOCTL_SEND_COMMAND: | |
544 | printk(KERN_WARNING "program %s is using a deprecated SCSI ioctl, please convert it to SG_IO\n", current->comm); | |
545 | err = -EINVAL; | |
546 | if (!arg) | |
547 | break; | |
548 | ||
549 | err = sg_scsi_ioctl(file, q, bd_disk, arg); | |
550 | break; | |
551 | case CDROMCLOSETRAY: | |
f98d2dfd BC |
552 | err = blk_send_start_stop(q, bd_disk, 0x03); |
553 | break; | |
1da177e4 | 554 | case CDROMEJECT: |
f98d2dfd | 555 | err = blk_send_start_stop(q, bd_disk, 0x02); |
1da177e4 LT |
556 | break; |
557 | default: | |
558 | err = -ENOTTY; | |
559 | } | |
560 | ||
561 | blk_put_queue(q); | |
562 | return err; | |
563 | } | |
564 | ||
565 | EXPORT_SYMBOL(scsi_cmd_ioctl); |