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0cdd1155 AH |
1 | /* |
2 | * Copyright (c) 2011 Alex Hornung <alex@alexhornung.com>. | |
3 | * All rights reserved. | |
4 | * | |
5 | * This code is derived from software contributed to The NetBSD Foundation | |
6 | * by Adam Hamsik. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * 2. Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in | |
16 | * the documentation and/or other materials provided with the | |
17 | * distribution. | |
18 | * | |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
22 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
23 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
24 | * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
25 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
26 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
27 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
28 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
29 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
30 | * SUCH DAMAGE. | |
31 | */ | |
32 | #include <sys/types.h> | |
33 | #include <sys/param.h> | |
34 | #include <sys/ioctl.h> | |
35 | #include <sys/stat.h> | |
0cdd1155 AH |
36 | #include <dev/disk/dm/netbsd-dm.h> |
37 | #include <stdlib.h> | |
38 | #include <string.h> | |
39 | #include <stdio.h> | |
40 | #include <unistd.h> | |
41 | #include <fcntl.h> | |
42 | #include <errno.h> | |
43 | ||
44 | #include <libprop/proplib.h> | |
45 | #include "libdm.h" | |
46 | ||
47 | struct dm_task { | |
48 | int task_type; | |
49 | int was_enoent; | |
50 | prop_dictionary_t dict; | |
51 | void *data_buffer; | |
52 | }; | |
53 | ||
54 | struct dm_cmd { | |
55 | int task_type; | |
56 | const char *dm_cmd; | |
57 | uint32_t cmd_version[3]; | |
58 | }; | |
59 | ||
60 | struct dm_cmd dm_cmds[] = { | |
61 | { DM_DEVICE_REMOVE, "remove", {4, 0, 0} }, | |
62 | { DM_DEVICE_REMOVE_ALL, "remove_all", {4, 0, 0} }, | |
63 | { DM_DEVICE_CREATE, "create", {4, 0, 0} }, | |
64 | { DM_DEVICE_RELOAD, "reload", {4, 0, 0} }, | |
65 | { DM_DEVICE_RESUME, "resume", {4, 0, 0} }, | |
66 | { DM_DEVICE_SUSPEND, "suspend", {4, 0, 0} }, | |
67 | { DM_DEVICE_CLEAR, "clear", {4, 0, 0} }, | |
68 | { DM_DEVICE_LIST_VERSIONS, "targets", {4, 1, 0} }, | |
69 | { DM_DEVICE_STATUS, "status", {4, 0, 0} }, | |
70 | { DM_DEVICE_TABLE, "table", {4, 0, 0} }, | |
71 | { DM_DEVICE_INFO, "info", {4, 0, 0} }, | |
72 | { DM_DEVICE_DEPS, "deps", {4, 0, 0} }, | |
73 | { DM_DEVICE_VERSION, "version", {4, 0, 0} }, | |
74 | { DM_DEVICE_TARGET_MSG, "message", {4, 2, 0} }, | |
75 | { DM_DEVICE_RENAME, "rename", {4, 0, 0} }, | |
76 | { DM_DEVICE_LIST, "names", {4, 0, 0} }, | |
77 | { 0, NULL, {0, 0, 0} } | |
78 | }; | |
79 | ||
80 | #define _LOG_DEBUG 0 | |
81 | #define _LOG_WARN 5 | |
82 | #define _LOG_ERR 10 | |
83 | ||
84 | static void _stderr_log(int level, const char *file, | |
85 | int line, const char *fmt, ...) | |
86 | { | |
87 | const char *prefix; | |
88 | __va_list ap; | |
89 | ||
90 | switch (level) { | |
91 | case _LOG_DEBUG: | |
92 | prefix = "debug: "; | |
93 | break; | |
94 | case _LOG_WARN: | |
95 | prefix = "warning: "; | |
96 | break; | |
97 | case _LOG_ERR: | |
98 | prefix = "error: "; | |
99 | break; | |
100 | default: | |
101 | prefix = ""; | |
102 | } | |
103 | ||
104 | fprintf(stderr, "libdm %s:%d: ", file, line); | |
105 | fprintf(stderr, "%s", prefix); | |
106 | ||
107 | __va_start(ap, fmt); | |
108 | vfprintf(stderr, fmt, ap); | |
109 | __va_end(ap); | |
110 | ||
111 | fprintf(stderr, "\n"); | |
112 | ||
113 | return; | |
114 | } | |
115 | ||
116 | static dm_error_func_t dm_log = _stderr_log; | |
117 | ||
118 | struct dm_task * | |
119 | dm_task_create(int task_type) | |
120 | { | |
121 | struct dm_task *dmt; | |
122 | struct dm_cmd *cmd = NULL; | |
123 | const char *task_cmd = NULL; | |
124 | prop_array_t pa; | |
125 | uint32_t flags = DM_EXISTS_FLAG; | |
126 | int i; | |
127 | ||
128 | for (i = 0; dm_cmds[i].dm_cmd != NULL; i++) { | |
129 | if (dm_cmds[i].task_type == task_type) { | |
130 | cmd = &dm_cmds[i]; | |
131 | task_cmd = dm_cmds[i].dm_cmd; | |
132 | break; | |
133 | } | |
134 | } | |
135 | ||
136 | if (task_cmd == NULL) | |
137 | return NULL; | |
138 | ||
139 | if (task_type == DM_DEVICE_TABLE) | |
140 | flags |= DM_STATUS_TABLE_FLAG; | |
141 | ||
142 | if (task_type == DM_DEVICE_SUSPEND) | |
143 | flags |= DM_SUSPEND_FLAG; | |
144 | ||
145 | if ((dmt = malloc(sizeof(*dmt))) == NULL) | |
146 | return NULL; | |
147 | ||
148 | memset(dmt, 0, sizeof(*dmt)); | |
149 | ||
150 | dmt->task_type = task_type; | |
151 | dmt->was_enoent = 0; | |
152 | ||
153 | if ((dmt->dict = prop_dictionary_create()) == NULL) | |
154 | goto err; | |
155 | ||
156 | if ((pa = prop_array_create_with_capacity(3)) == NULL) | |
157 | goto err; | |
158 | ||
159 | if (!prop_array_add_uint32(pa, cmd->cmd_version[0])) { | |
160 | prop_object_release(pa); | |
161 | goto err; | |
162 | } | |
163 | ||
164 | if (!prop_array_add_uint32(pa, cmd->cmd_version[1])) { | |
165 | prop_object_release(pa); | |
166 | goto err; | |
167 | } | |
168 | ||
169 | if (!prop_array_add_uint32(pa, cmd->cmd_version[2])) { | |
170 | prop_object_release(pa); | |
171 | goto err; | |
172 | } | |
173 | ||
174 | if (!prop_dictionary_set(dmt->dict, DM_IOCTL_VERSION, pa)) { | |
175 | prop_object_release(pa); | |
176 | goto err; | |
177 | } | |
178 | ||
179 | prop_object_release(pa); | |
180 | ||
181 | if (!prop_dictionary_set_cstring(dmt->dict, DM_IOCTL_COMMAND, | |
182 | task_cmd)) | |
183 | goto err; | |
184 | ||
185 | if (!prop_dictionary_set_uint32(dmt->dict, DM_IOCTL_FLAGS, flags)) | |
186 | goto err; | |
187 | ||
188 | if ((pa = prop_array_create_with_capacity(5)) == NULL) | |
189 | goto err; | |
190 | ||
191 | if (!prop_dictionary_set(dmt->dict, DM_IOCTL_CMD_DATA, pa)) { | |
192 | prop_object_release(pa); | |
193 | goto err; | |
194 | } | |
195 | ||
196 | prop_object_release(pa); | |
197 | ||
198 | return dmt; | |
199 | /* NOT REACHED */ | |
200 | ||
201 | err: | |
202 | if (dmt->dict != NULL) | |
203 | prop_object_release(dmt->dict); | |
204 | if (dmt) | |
205 | free(dmt); | |
206 | ||
207 | return NULL; | |
208 | } | |
209 | ||
210 | ||
211 | void | |
212 | dm_task_destroy(struct dm_task *dmt) | |
213 | { | |
214 | if (dmt) { | |
215 | if (dmt->data_buffer) | |
216 | free(dmt->data_buffer); | |
217 | ||
218 | if (dmt->dict) { | |
219 | prop_object_release(dmt->dict); | |
220 | dmt->dict = NULL; | |
221 | } | |
222 | ||
223 | free(dmt); | |
224 | } | |
225 | } | |
226 | ||
227 | int | |
228 | dm_task_run(struct dm_task *dmt) | |
229 | { | |
230 | struct dm_task *dmt_internal = NULL; | |
231 | prop_dictionary_t ret_pd = NULL; | |
232 | prop_array_t pa; | |
233 | int error; | |
234 | int fd; | |
235 | int need_unroll = 0; | |
236 | ||
237 | if ((fd = open("/dev/mapper/control", O_RDWR)) < -1) | |
238 | goto err; | |
239 | ||
240 | pa = prop_dictionary_get(dmt->dict, DM_IOCTL_CMD_DATA); | |
241 | if ((dmt->task_type == DM_DEVICE_CREATE) && (pa != NULL) && | |
242 | (prop_array_count(pa) > 0)) { | |
243 | /* | |
244 | * Magic to separate a combined DM_DEVICE_CREATE+RELOAD int | |
245 | * a DM_DEVICE_CREATE and a RELOAD with target table. | |
246 | */ | |
247 | ||
248 | if ((dmt_internal = dm_task_create(DM_DEVICE_CREATE)) == NULL) | |
249 | goto err; | |
250 | if (!dm_task_set_name(dmt_internal, dm_task_get_name(dmt))) | |
251 | goto err; | |
252 | if (!dm_task_set_uuid(dmt_internal, dm_task_get_uuid(dmt))) | |
253 | goto err; | |
254 | if (!dm_task_run(dmt_internal)) | |
255 | goto err; | |
256 | dm_task_destroy(dmt_internal); | |
257 | dmt_internal = NULL; | |
258 | ||
259 | if (!prop_dictionary_set_cstring_nocopy(dmt->dict, | |
260 | DM_IOCTL_COMMAND, "reload")) | |
261 | goto unroll; | |
262 | dmt->task_type = DM_DEVICE_RELOAD; | |
263 | if ((error = prop_dictionary_sendrecv_ioctl(dmt->dict, fd, | |
264 | NETBSD_DM_IOCTL, &ret_pd)) != 0) { | |
265 | dm_log(_LOG_ERR, __FILE__, __LINE__, "ioctl failed: %d", | |
266 | error); | |
267 | goto unroll; | |
268 | } | |
269 | ||
270 | if (!prop_dictionary_set_cstring_nocopy(dmt->dict, | |
271 | DM_IOCTL_COMMAND, "resume")) | |
272 | goto unroll; | |
273 | dmt->task_type = DM_DEVICE_RESUME; | |
274 | /* Remove superfluous stuff */ | |
275 | prop_dictionary_remove(dmt->dict, DM_IOCTL_CMD_DATA); | |
276 | ||
277 | need_unroll = 1; | |
278 | } | |
279 | ||
280 | if ((error = prop_dictionary_sendrecv_ioctl(dmt->dict, fd, | |
281 | NETBSD_DM_IOCTL, &ret_pd)) != 0) { | |
282 | if (((error == ENOENT) && | |
283 | ((dmt->task_type == DM_DEVICE_INFO) || | |
284 | (dmt->task_type == DM_DEVICE_STATUS)))) { | |
285 | dmt->was_enoent = 1; | |
286 | ret_pd = NULL; | |
287 | } else { | |
288 | dm_log(_LOG_ERR, __FILE__, __LINE__, "ioctl failed: %d", | |
289 | error); | |
290 | if (need_unroll) | |
291 | goto unroll; | |
292 | else | |
293 | goto err; | |
294 | } | |
295 | } | |
296 | ||
297 | if (ret_pd) | |
298 | prop_object_retain(ret_pd); | |
299 | ||
300 | prop_object_release(dmt->dict); | |
301 | dmt->dict = ret_pd; | |
302 | ||
303 | return 1; | |
304 | /* NOT REACHED */ | |
305 | ||
306 | unroll: | |
307 | prop_dictionary_remove(dmt->dict, DM_IOCTL_CMD_DATA); | |
308 | ||
309 | if (!prop_dictionary_set_cstring_nocopy(dmt->dict, DM_IOCTL_COMMAND, | |
310 | "remove")) { | |
311 | dm_log(_LOG_ERR, __FILE__, __LINE__, "couldn't unroll changes " | |
312 | "in dm_task_run"); | |
313 | goto err; | |
314 | } | |
315 | ||
316 | if ((error = prop_dictionary_sendrecv_ioctl(dmt->dict, fd, | |
317 | NETBSD_DM_IOCTL, &ret_pd)) != 0) { | |
318 | dm_log(_LOG_ERR, __FILE__, __LINE__, "ioctl failed: %d", | |
319 | error); | |
320 | goto unroll; | |
321 | } | |
322 | dmt->task_type = DM_DEVICE_REMOVE; | |
323 | dm_task_run(dmt); | |
324 | ||
325 | err: | |
326 | if (fd >= 0) | |
327 | close(fd); | |
328 | ||
329 | if (dmt_internal) | |
330 | dm_task_destroy(dmt_internal); | |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
335 | int | |
336 | dm_task_set_name(struct dm_task *dmt, const char *name) | |
337 | { | |
338 | return prop_dictionary_set_cstring(dmt->dict, DM_IOCTL_NAME, | |
339 | __DECONST(char *, name)); | |
340 | } | |
341 | ||
342 | ||
343 | const char * | |
344 | dm_task_get_name(struct dm_task *dmt) | |
345 | { | |
346 | const char *name = NULL; | |
347 | ||
348 | prop_dictionary_get_cstring_nocopy(dmt->dict, DM_IOCTL_NAME, &name); | |
349 | ||
350 | return name; | |
351 | } | |
352 | ||
353 | int | |
354 | dm_task_set_newname(struct dm_task *dmt, const char *newname) | |
355 | { | |
356 | return prop_dictionary_set_cstring(dmt->dict, DM_DEV_NEWNAME, | |
357 | __DECONST(char *, newname)); | |
358 | } | |
359 | ||
360 | int | |
361 | dm_task_set_major(struct dm_task *dmt __unused, int major __unused) | |
362 | { | |
363 | return 1; | |
364 | } | |
365 | ||
366 | int | |
367 | dm_task_set_minor(struct dm_task *dmt, int minor) | |
368 | { | |
369 | return prop_dictionary_set_int32(dmt->dict, DM_IOCTL_MINOR, minor); | |
370 | } | |
371 | ||
372 | int | |
373 | dm_task_get_minor(struct dm_task *dmt) | |
374 | { | |
375 | int minor = 0; | |
376 | ||
377 | minor = prop_dictionary_get_int32(dmt->dict, DM_IOCTL_MINOR, &minor); | |
378 | ||
379 | return minor; | |
380 | } | |
381 | ||
382 | int | |
383 | dm_task_set_uuid(struct dm_task *dmt, const char *uuid) | |
384 | { | |
385 | return prop_dictionary_set_cstring(dmt->dict, DM_IOCTL_UUID, | |
386 | __DECONST(char *,uuid)); | |
387 | } | |
388 | ||
389 | const char * | |
390 | dm_task_get_uuid(struct dm_task *dmt) | |
391 | { | |
392 | const char *uuid = NULL; | |
393 | ||
394 | prop_dictionary_get_cstring_nocopy(dmt->dict, DM_IOCTL_UUID, &uuid); | |
395 | ||
396 | return uuid; | |
397 | } | |
398 | ||
399 | int | |
400 | dm_task_add_target(struct dm_task *dmt, uint64_t start, size_t size, | |
401 | const char *target, const char *params) | |
402 | { | |
403 | prop_dictionary_t target_dict = NULL; | |
404 | prop_array_t pa = NULL; | |
405 | ||
406 | if ((pa = prop_dictionary_get(dmt->dict, DM_IOCTL_CMD_DATA)) == NULL) | |
407 | return 0; | |
408 | ||
409 | if ((target_dict = prop_dictionary_create()) == NULL) | |
410 | return 0; | |
411 | ||
412 | if (!prop_dictionary_set_uint64(target_dict, DM_TABLE_START, start)) | |
413 | goto err; | |
414 | ||
415 | if (!prop_dictionary_set_uint64(target_dict, DM_TABLE_LENGTH, size)) | |
416 | goto err; | |
417 | ||
418 | if (!prop_dictionary_set_cstring(target_dict, DM_TABLE_TYPE, target)) | |
419 | goto err; | |
420 | ||
421 | if (!prop_dictionary_set_cstring(target_dict, DM_TABLE_PARAMS, params)) | |
422 | goto err; | |
423 | ||
424 | if (!prop_array_add(pa, target_dict)) | |
425 | goto err; | |
426 | ||
427 | prop_object_release(target_dict); | |
428 | ||
429 | return 1; | |
430 | /* NOT REACHED */ | |
431 | ||
432 | err: | |
433 | prop_object_release(target_dict); | |
434 | return 0; | |
435 | } | |
436 | ||
437 | int | |
438 | dm_task_set_sector(struct dm_task *dmt, uint64_t sector) | |
439 | { | |
440 | return prop_dictionary_set_uint64(dmt->dict, DM_MESSAGE_SECTOR, | |
441 | sector); | |
442 | } | |
443 | ||
444 | int | |
445 | dm_task_set_message(struct dm_task *dmt, const char *msg) | |
446 | { | |
447 | return prop_dictionary_set_cstring(dmt->dict, DM_MESSAGE_STR, msg); | |
448 | } | |
449 | ||
450 | int | |
451 | dm_task_set_ro(struct dm_task *dmt) | |
452 | { | |
453 | uint32_t flags = 0; | |
454 | ||
455 | prop_dictionary_get_uint32(dmt->dict, DM_IOCTL_FLAGS, &flags); | |
456 | flags |= DM_READONLY_FLAG; | |
457 | ||
458 | return prop_dictionary_set_uint32(dmt->dict, DM_IOCTL_FLAGS, flags); | |
459 | } | |
460 | ||
461 | int | |
462 | dm_task_no_open_count(struct dm_task *dmt __unused) | |
463 | { | |
464 | /* | |
465 | * nothing else needed, since we don't have performance problems when | |
466 | * getting the open count. | |
467 | */ | |
468 | return 1; | |
469 | } | |
470 | ||
471 | int | |
472 | dm_task_query_inactive_table(struct dm_task *dmt) | |
473 | { | |
474 | uint32_t flags = 0; | |
475 | ||
476 | prop_dictionary_get_uint32(dmt->dict, DM_IOCTL_FLAGS, &flags); | |
477 | flags |= DM_QUERY_INACTIVE_TABLE_FLAG; | |
478 | ||
479 | return prop_dictionary_set_uint32(dmt->dict, DM_IOCTL_FLAGS, flags); | |
480 | } | |
481 | ||
482 | int | |
483 | dm_task_set_read_ahead(struct dm_task *dmt __unused, | |
484 | uint32_t read_ahead __unused) | |
485 | { | |
486 | /* We don't support readahead */ | |
487 | return 1; | |
488 | } | |
489 | ||
490 | int | |
491 | dm_task_get_read_ahead(struct dm_task *dmt __unused, uint32_t *read_ahead) | |
492 | { | |
493 | *read_ahead = 0; | |
494 | ||
495 | return 1; | |
496 | } | |
497 | ||
498 | int | |
499 | dm_task_secure_data(struct dm_task *dmt) | |
500 | { | |
501 | /* XXX: needs kernel support */ | |
502 | uint32_t flags = 0; | |
503 | ||
504 | prop_dictionary_get_uint32(dmt->dict, DM_IOCTL_FLAGS, &flags); | |
505 | flags |= DM_SECURE_DATA_FLAG; | |
506 | ||
507 | return prop_dictionary_set_uint32(dmt->dict, DM_IOCTL_FLAGS, flags); | |
508 | } | |
509 | ||
510 | int | |
511 | dm_task_get_info(struct dm_task *dmt, struct dm_info *dmi) | |
512 | { | |
513 | uint32_t flags = 0; | |
514 | ||
515 | memset(dmi, 0, sizeof(struct dm_info)); | |
516 | ||
517 | /* Hack due to the way Linux dm works */ | |
518 | if (dmt->was_enoent) { | |
519 | dmi->exists = 0; | |
520 | return 1; | |
521 | /* NOT REACHED */ | |
522 | } | |
523 | ||
524 | if (!prop_dictionary_get_uint32(dmt->dict, DM_IOCTL_FLAGS, | |
525 | &flags)) | |
526 | return 0; | |
527 | ||
528 | prop_dictionary_get_int32(dmt->dict, DM_IOCTL_OPEN, &dmi->open_count); | |
529 | ||
530 | prop_dictionary_get_uint32(dmt->dict, DM_IOCTL_TARGET_COUNT, | |
531 | &dmi->target_count); | |
532 | ||
533 | prop_dictionary_get_uint32(dmt->dict, DM_IOCTL_EVENT, &dmi->event_nr); | |
534 | ||
535 | prop_dictionary_get_uint32(dmt->dict, DM_IOCTL_MINOR, &dmi->minor); | |
536 | ||
537 | dmi->major = dm_get_major(); | |
538 | ||
539 | dmi->read_only = (flags & DM_READONLY_FLAG); | |
540 | dmi->exists = (flags & DM_EXISTS_FLAG); | |
541 | dmi->suspended = (flags & DM_SUSPEND_FLAG); | |
542 | dmi->live_table = (flags & DM_ACTIVE_PRESENT_FLAG); | |
543 | dmi->inactive_table = (flags & DM_INACTIVE_PRESENT_FLAG); | |
544 | ||
545 | return 1; | |
546 | } | |
547 | ||
548 | int | |
549 | dm_task_get_driver_version(struct dm_task *dmt, char *ver, size_t ver_sz) | |
550 | { | |
551 | prop_array_t pa_ver; | |
552 | uint32_t maj = 0, min = 0, patch = 0; | |
553 | ||
554 | if ((pa_ver = prop_dictionary_get(dmt->dict, DM_IOCTL_VERSION)) == NULL) | |
555 | return 0; | |
556 | ||
557 | if (!prop_array_get_uint32(pa_ver, 0, &maj)) | |
558 | return 0; | |
559 | ||
560 | if (!prop_array_get_uint32(pa_ver, 1, &min)) | |
561 | return 0; | |
562 | ||
563 | if (!prop_array_get_uint32(pa_ver, 2, &patch)) | |
564 | return 0; | |
565 | ||
566 | snprintf(ver, ver_sz, "%u.%u.%u", maj, min, patch); | |
567 | ||
568 | return 1; | |
569 | } | |
570 | ||
571 | struct dm_deps * | |
572 | dm_task_get_deps(struct dm_task *dmt) | |
573 | { | |
574 | prop_object_iterator_t iter; | |
575 | prop_array_t pa; | |
576 | prop_object_t po; | |
577 | struct dm_deps *deps; | |
578 | ||
579 | unsigned int count; | |
580 | int i; | |
581 | ||
582 | if ((pa = prop_dictionary_get(dmt->dict, DM_IOCTL_CMD_DATA)) == NULL) | |
583 | return NULL; | |
584 | ||
585 | count = prop_array_count(pa); | |
586 | ||
587 | if (dmt->data_buffer != NULL) | |
588 | free(dmt->data_buffer); | |
589 | ||
590 | if ((dmt->data_buffer = malloc(sizeof(struct dm_deps) + | |
591 | (count * sizeof(uint64_t)))) == NULL) | |
592 | return NULL; | |
593 | ||
594 | if ((iter = prop_array_iterator(pa)) == NULL) | |
595 | return NULL; | |
596 | ||
597 | deps = (struct dm_deps *)dmt->data_buffer; | |
598 | memset(deps, 0, sizeof(struct dm_deps) + (count * sizeof(uint64_t))); | |
599 | i = 0; | |
600 | while ((po = prop_object_iterator_next(iter)) != NULL) | |
601 | deps->deps[i++] = prop_number_unsigned_integer_value(po); | |
602 | ||
603 | deps->count = (uint32_t)count; | |
604 | ||
605 | prop_object_iterator_release(iter); | |
606 | ||
607 | return deps; | |
608 | } | |
609 | ||
610 | struct dm_versions * | |
611 | dm_task_get_versions(struct dm_task *dmt) | |
612 | { | |
613 | prop_object_iterator_t iter; | |
614 | prop_dictionary_t target_dict; | |
615 | prop_array_t pa, pa_ver; | |
616 | struct dm_versions *vers; | |
617 | ||
618 | unsigned int count; | |
619 | int i, j; | |
620 | ||
621 | if ((pa = prop_dictionary_get(dmt->dict, DM_IOCTL_CMD_DATA)) == NULL) | |
622 | return NULL; | |
623 | ||
624 | count = prop_array_count(pa); | |
625 | ||
626 | if (dmt->data_buffer != NULL) | |
627 | free(dmt->data_buffer); | |
628 | ||
629 | if ((dmt->data_buffer = malloc(sizeof(struct dm_versions) * count)) | |
630 | == NULL) | |
631 | return NULL; | |
632 | ||
633 | if ((iter = prop_array_iterator(pa)) == NULL) | |
634 | return NULL; | |
635 | ||
636 | vers = (struct dm_versions *)dmt->data_buffer; | |
637 | memset(vers, 0, sizeof(struct dm_versions) * count); | |
638 | i = 0; | |
639 | while ((target_dict = prop_object_iterator_next(iter)) != NULL) { | |
640 | vers[i].next = sizeof(struct dm_versions); | |
641 | prop_dictionary_get_cstring_nocopy(target_dict, | |
642 | DM_TARGETS_NAME, &vers[i].name); | |
643 | ||
644 | pa_ver = prop_dictionary_get(target_dict, DM_TARGETS_VERSION); | |
645 | for (j = 0; j < 3; j++) | |
646 | prop_array_get_uint32(pa_ver, j, &vers[i].version[j]); | |
647 | ||
648 | ++i; | |
649 | } | |
650 | ||
651 | /* Finish the array */ | |
652 | vers[i-1].next = 0; | |
653 | ||
654 | prop_object_iterator_release(iter); | |
655 | ||
656 | return (struct dm_versions *)dmt->data_buffer; | |
657 | } | |
658 | ||
659 | struct dm_names * | |
660 | dm_task_get_names(struct dm_task *dmt) | |
661 | { | |
662 | prop_object_iterator_t iter; | |
663 | prop_dictionary_t devs_dict; | |
664 | prop_array_t pa; | |
665 | struct dm_names *names; | |
666 | ||
667 | unsigned int count; | |
668 | int i; | |
669 | ||
670 | if ((pa = prop_dictionary_get(dmt->dict, DM_IOCTL_CMD_DATA)) == NULL) | |
671 | return NULL; | |
672 | ||
673 | count = prop_array_count(pa); | |
674 | ||
675 | if (dmt->data_buffer != NULL) | |
676 | free(dmt->data_buffer); | |
677 | ||
678 | if ((dmt->data_buffer = malloc(sizeof(struct dm_names) * count)) | |
679 | == NULL) | |
680 | return NULL; | |
681 | ||
682 | if ((iter = prop_array_iterator(pa)) == NULL) | |
683 | return NULL; | |
684 | ||
685 | names = (struct dm_names *)dmt->data_buffer; | |
686 | memset(names, 0, sizeof(struct dm_names) * count); | |
687 | i = 0; | |
688 | while ((devs_dict = prop_object_iterator_next(iter)) != NULL) { | |
689 | names[i].next = sizeof(struct dm_names); | |
690 | ||
691 | prop_dictionary_get_cstring_nocopy(devs_dict, | |
692 | DM_DEV_NAME, &names[i].name); | |
693 | ||
694 | prop_dictionary_get_uint64(devs_dict, DM_DEV_DEV, | |
695 | &names[i].dev); | |
696 | ||
697 | ++i; | |
698 | } | |
699 | ||
700 | /* Finish the array */ | |
701 | names[i-1].next = 0; | |
702 | ||
703 | prop_object_iterator_release(iter); | |
704 | ||
705 | return (struct dm_names *)dmt->data_buffer; | |
706 | } | |
707 | ||
708 | int | |
709 | dm_task_update_nodes(void) | |
710 | { | |
711 | ||
712 | /* nothing else needed */ | |
713 | return 1; | |
714 | } | |
715 | ||
716 | void * | |
717 | dm_get_next_target(struct dm_task *dmt, void *cur, uint64_t *startp, | |
718 | uint64_t *lengthp, char **target_type, char **params) | |
719 | { | |
720 | prop_object_iterator_t iter; | |
721 | prop_dictionary_t target_dict; | |
722 | prop_array_t pa; | |
723 | uint64_t ulength; | |
724 | unsigned int count; | |
725 | ||
726 | if ((pa = prop_dictionary_get(dmt->dict, DM_IOCTL_CMD_DATA)) == NULL) | |
727 | return NULL; | |
728 | ||
729 | count = prop_array_count(pa); | |
730 | ||
731 | if (cur == NULL) { | |
732 | if ((iter = prop_array_iterator(pa)) == NULL) | |
733 | return NULL; | |
734 | } else { | |
735 | iter = (prop_object_iterator_t)cur; | |
736 | } | |
737 | ||
738 | /* Get the next target dict */ | |
739 | if ((target_dict = prop_object_iterator_next(iter)) == NULL) { | |
740 | /* If there are no more target dicts, release the iterator */ | |
741 | goto err; | |
742 | } | |
743 | ||
744 | if (!prop_dictionary_get_cstring_nocopy(target_dict, DM_TABLE_TYPE, | |
745 | (const char **)target_type)) | |
746 | goto err; | |
747 | ||
748 | /* | |
749 | * Ugly __DECONST and (const char **) casts due to the linux prototype | |
750 | * of this function. | |
751 | */ | |
752 | *params = __DECONST(char *, ""); | |
753 | prop_dictionary_get_cstring_nocopy(target_dict, DM_TABLE_PARAMS, | |
754 | (const char **)params); | |
755 | ||
756 | if (!prop_dictionary_get_uint64(target_dict, DM_TABLE_START, startp)) | |
757 | goto err; | |
758 | ||
759 | if (!prop_dictionary_get_uint64(target_dict, DM_TABLE_LENGTH, &ulength)) | |
760 | goto err; | |
761 | ||
762 | *lengthp = (size_t)ulength; | |
763 | ||
764 | /* If we are at the last element, make sure we return NULL */ | |
765 | if (target_dict == prop_array_get(pa, count-1)) | |
766 | goto err; | |
767 | ||
768 | return (void *)iter; | |
769 | /* NOT REACHED */ | |
770 | ||
771 | err: | |
772 | if (iter != NULL) | |
773 | prop_object_iterator_release(iter); | |
774 | ||
775 | return NULL; | |
776 | } | |
777 | ||
778 | uint32_t | |
779 | dm_get_major(void) | |
780 | { | |
781 | struct stat sb; | |
782 | ||
783 | if (stat("/dev/mapper/control", &sb) < 0) | |
784 | return 0; | |
785 | ||
786 | return (uint32_t)major(sb.st_dev); | |
787 | } | |
788 | ||
789 | int | |
790 | dm_is_dm_major(uint32_t major) | |
791 | { | |
792 | return (major == dm_get_major()); | |
793 | } | |
794 | ||
795 | const char * | |
796 | dm_dir(void) | |
797 | { | |
798 | return "/dev/mapper"; | |
799 | } | |
800 | ||
df3bdaaf AH |
801 | void |
802 | dm_udev_set_sync_support(int sync_udev __unused) | |
803 | { | |
804 | return; | |
805 | } | |
806 | ||
0cdd1155 AH |
807 | int |
808 | dm_task_set_cookie(struct dm_task *dmt __unused, uint32_t *cookie __unused, | |
809 | uint16_t udev_flags __unused) | |
810 | { | |
811 | return 1; | |
812 | } | |
813 | ||
814 | int | |
815 | dm_udev_wait(uint32_t cookie __unused) | |
816 | { | |
817 | return 1; | |
818 | } | |
819 | ||
820 | void | |
821 | dm_lib_release(void) | |
822 | { | |
823 | return; | |
824 | } | |
825 | ||
826 | int | |
827 | dm_log_init(dm_error_func_t fn) | |
828 | { | |
829 | if (fn) | |
830 | dm_log = fn; | |
831 | return 1; | |
832 | } | |
833 | ||
834 | int | |
835 | dm_log_init_verbose(int verbose __unused) | |
836 | { | |
837 | return 1; | |
838 | } | |
839 | ||
840 | /* XXX: unused in kernel */ | |
841 | int | |
842 | dm_task_set_uid(struct dm_task *dmt, uid_t uid) | |
843 | { | |
844 | return prop_dictionary_set_uint32(dmt->dict, DM_DEV_UID, | |
845 | (uint32_t)uid); | |
846 | } | |
847 | ||
848 | int | |
849 | dm_task_set_gid(struct dm_task *dmt, gid_t gid) | |
850 | { | |
851 | return prop_dictionary_set_uint32(dmt->dict, DM_DEV_GID, | |
852 | (uint32_t)gid); | |
853 | } | |
854 | ||
855 | int | |
856 | dm_task_set_mode(struct dm_task *dmt, mode_t mode) | |
857 | { | |
858 | return prop_dictionary_set_uint32(dmt->dict, DM_DEV_MODE, | |
859 | (uint32_t)mode); | |
860 | } | |
861 | ||
862 | int | |
863 | dm_task_no_flush(struct dm_task *dmt __unused) | |
864 | { | |
865 | uint32_t flags = 0; | |
866 | ||
867 | prop_dictionary_get_uint32(dmt->dict, DM_IOCTL_FLAGS, &flags); | |
868 | flags |= DM_NOFLUSH_FLAG; | |
869 | ||
870 | return prop_dictionary_set_uint32(dmt->dict, DM_IOCTL_FLAGS, flags); | |
871 | } | |
872 | ||
873 | int | |
874 | dm_task_skip_lockfs(struct dm_task *dmt __unused) | |
875 | { | |
876 | uint32_t flags = 0; | |
877 | ||
878 | prop_dictionary_get_uint32(dmt->dict, DM_IOCTL_FLAGS, &flags); | |
879 | flags |= DM_SKIP_LOCKFS_FLAG; | |
880 | ||
881 | return prop_dictionary_set_uint32(dmt->dict, DM_IOCTL_FLAGS, flags); | |
882 | } | |
883 | ||
884 | int dm_task_set_geometry(struct dm_task *dmt __unused, | |
885 | const char *cylinders __unused, const char *heads __unused, | |
886 | const char *sectors __unused, const char *start __unused) | |
887 | { | |
888 | return 1; | |
889 | } | |
890 | ||
891 | /*****************************************************************************/ | |
892 | /********************** DragonFly-specific extensions ************************/ | |
893 | /*****************************************************************************/ | |
894 | void * | |
895 | dm_get_next_version(struct dm_task *dmt, void *cur, const char **target_type, | |
896 | uint32_t *target_ver) | |
897 | { | |
898 | prop_object_iterator_t iter; | |
899 | prop_dictionary_t target_dict; | |
900 | prop_array_t pa, pa_ver; | |
901 | unsigned int count; | |
902 | int j; | |
903 | ||
904 | if ((pa = prop_dictionary_get(dmt->dict, DM_IOCTL_CMD_DATA)) == NULL) | |
905 | return NULL; | |
906 | ||
907 | count = prop_array_count(pa); | |
908 | ||
909 | if (cur == NULL) { | |
910 | if ((iter = prop_array_iterator(pa)) == NULL) | |
911 | return NULL; | |
912 | } else { | |
913 | iter = (prop_object_iterator_t)cur; | |
914 | } | |
915 | ||
916 | /* Get the next target dict */ | |
917 | if ((target_dict = prop_object_iterator_next(iter)) == NULL) { | |
918 | /* If there are no more target dicts, release the iterator */ | |
919 | goto err; | |
920 | } | |
921 | ||
922 | if (!prop_dictionary_get_cstring_nocopy(target_dict, DM_TARGETS_NAME, | |
923 | target_type)) | |
924 | goto err; | |
925 | ||
926 | if ((pa_ver = prop_dictionary_get(target_dict, DM_TARGETS_VERSION)) | |
927 | == NULL) | |
928 | goto err; | |
929 | ||
930 | for (j = 0; j < 3; j++) { | |
931 | if (!prop_array_get_uint32(pa_ver, j, &target_ver[j])) | |
932 | goto err; | |
933 | } | |
934 | ||
935 | /* If we are at the last element, make sure we return NULL */ | |
936 | if (target_dict == prop_array_get(pa, count-1)) | |
937 | goto err; | |
938 | ||
939 | return (void *)iter; | |
940 | /* NOT REACHED */ | |
941 | ||
942 | err: | |
943 | if (iter != NULL) | |
944 | prop_object_iterator_release(iter); | |
945 | ||
946 | return NULL; | |
947 | } | |
948 | ||
949 | void * | |
950 | dm_get_next_dep(struct dm_task *dmt, void *cur, uint64_t *dep) | |
951 | { | |
952 | prop_object_iterator_t iter; | |
953 | prop_object_t po; | |
954 | prop_array_t pa; | |
955 | unsigned int count; | |
956 | ||
957 | *dep = 0; | |
958 | ||
959 | if ((pa = prop_dictionary_get(dmt->dict, DM_IOCTL_CMD_DATA)) == NULL) | |
960 | return NULL; | |
961 | ||
962 | count = prop_array_count(pa); | |
963 | ||
964 | if (cur == NULL) { | |
965 | if ((iter = prop_array_iterator(pa)) == NULL) | |
966 | return NULL; | |
967 | } else { | |
968 | iter = (prop_object_iterator_t)cur; | |
969 | } | |
970 | ||
971 | /* Get the next target dict */ | |
972 | if ((po = prop_object_iterator_next(iter)) == NULL) { | |
973 | /* If there are no more target dicts, release the iterator */ | |
974 | goto err; | |
975 | } | |
976 | ||
977 | *dep = prop_number_unsigned_integer_value(po); | |
978 | ||
979 | /* If we are at the last element, make sure we return NULL */ | |
980 | if (po == prop_array_get(pa, count-1)) | |
981 | goto err; | |
982 | ||
983 | return (void *)iter; | |
984 | /* NOT REACHED */ | |
985 | ||
986 | err: | |
987 | if (iter != NULL) | |
988 | prop_object_iterator_release(iter); | |
989 | ||
990 | return NULL; | |
991 | } | |
992 | ||
993 | void * | |
994 | dm_get_next_name(struct dm_task *dmt, void *cur, const char **name, | |
995 | uint64_t *dev) | |
996 | { | |
997 | prop_object_iterator_t iter; | |
998 | prop_dictionary_t devs_dict; | |
999 | prop_array_t pa; | |
1000 | unsigned int count; | |
1001 | ||
1002 | if ((pa = prop_dictionary_get(dmt->dict, DM_IOCTL_CMD_DATA)) == NULL) | |
1003 | return NULL; | |
1004 | ||
1005 | count = prop_array_count(pa); | |
1006 | ||
1007 | ||
1008 | if (cur == NULL) { | |
1009 | if ((iter = prop_array_iterator(pa)) == NULL) | |
1010 | return NULL; | |
1011 | } else { | |
1012 | iter = (prop_object_iterator_t)cur; | |
1013 | } | |
1014 | ||
1015 | /* Get the next dev dict */ | |
1016 | if ((devs_dict = prop_object_iterator_next(iter)) == NULL) { | |
1017 | /* If there are no more dev dicts, release the iterator */ | |
1018 | goto err; | |
1019 | } | |
1020 | ||
1021 | if (!prop_dictionary_get_cstring_nocopy(devs_dict, DM_DEV_NAME, name)) | |
1022 | goto err; | |
1023 | ||
1024 | if (!prop_dictionary_get_uint64(devs_dict, DM_DEV_DEV, dev)) | |
1025 | goto err; | |
1026 | ||
1027 | /* If we are at the last element, make sure we return NULL */ | |
1028 | if (devs_dict == prop_array_get(pa, count-1)) | |
1029 | goto err; | |
1030 | ||
1031 | return (void *)iter; | |
1032 | /* NOT REACHED */ | |
1033 | ||
1034 | err: | |
1035 | if (iter != NULL) | |
1036 | prop_object_iterator_release(iter); | |
1037 | ||
1038 | return NULL; | |
1039 | ||
1040 | } |