Commit | Line | Data |
---|---|---|
455a7b23 SB |
1 | /* |
2 | * Copyright © 2016 Intel Corporation | |
3 | * | |
4 | * Authors: | |
5 | * Scott Bauer <scott.bauer@intel.com> | |
6 | * Rafael Antognolli <rafael.antognolli@intel.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms and conditions of the GNU General Public License, | |
10 | * version 2, as published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | */ | |
17 | ||
18 | #define pr_fmt(fmt) KBUILD_MODNAME ":OPAL: " fmt | |
19 | ||
20 | #include <linux/delay.h> | |
21 | #include <linux/device.h> | |
22 | #include <linux/kernel.h> | |
23 | #include <linux/list.h> | |
24 | #include <linux/genhd.h> | |
25 | #include <linux/slab.h> | |
26 | #include <linux/uaccess.h> | |
27 | #include <uapi/linux/sed-opal.h> | |
28 | #include <linux/sed-opal.h> | |
29 | #include <linux/string.h> | |
30 | #include <linux/kdev_t.h> | |
31 | ||
32 | #include "opal_proto.h" | |
33 | ||
34 | static const u8 opaluid[][OPAL_UID_LENGTH] = { | |
35 | /* users */ | |
36 | [OPAL_SMUID_UID] = | |
37 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff }, | |
38 | [OPAL_THISSP_UID] = | |
39 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, | |
40 | [OPAL_ADMINSP_UID] = | |
41 | { 0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x01 }, | |
42 | [OPAL_LOCKINGSP_UID] = | |
43 | { 0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x02 }, | |
44 | [OPAL_ENTERPRISE_LOCKINGSP_UID] = | |
45 | { 0x00, 0x00, 0x02, 0x05, 0x00, 0x01, 0x00, 0x01 }, | |
46 | [OPAL_ANYBODY_UID] = | |
47 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x01 }, | |
48 | [OPAL_SID_UID] = | |
49 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x06 }, | |
50 | [OPAL_ADMIN1_UID] = | |
51 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0x00, 0x01 }, | |
52 | [OPAL_USER1_UID] = | |
53 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x03, 0x00, 0x01 }, | |
54 | [OPAL_USER2_UID] = | |
55 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x03, 0x00, 0x02 }, | |
56 | [OPAL_PSID_UID] = | |
57 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0xff, 0x01 }, | |
58 | [OPAL_ENTERPRISE_BANDMASTER0_UID] = | |
59 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x80, 0x01 }, | |
60 | [OPAL_ENTERPRISE_ERASEMASTER_UID] = | |
61 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x84, 0x01 }, | |
62 | ||
63 | /* tables */ | |
64 | ||
65 | [OPAL_LOCKINGRANGE_GLOBAL] = | |
66 | { 0x00, 0x00, 0x08, 0x02, 0x00, 0x00, 0x00, 0x01 }, | |
67 | [OPAL_LOCKINGRANGE_ACE_RDLOCKED] = | |
68 | { 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xE0, 0x01 }, | |
69 | [OPAL_LOCKINGRANGE_ACE_WRLOCKED] = | |
70 | { 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xE8, 0x01 }, | |
71 | [OPAL_MBRCONTROL] = | |
72 | { 0x00, 0x00, 0x08, 0x03, 0x00, 0x00, 0x00, 0x01 }, | |
73 | [OPAL_MBR] = | |
74 | { 0x00, 0x00, 0x08, 0x04, 0x00, 0x00, 0x00, 0x00 }, | |
75 | [OPAL_AUTHORITY_TABLE] = | |
76 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x00}, | |
77 | [OPAL_C_PIN_TABLE] = | |
78 | { 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x00}, | |
79 | [OPAL_LOCKING_INFO_TABLE] = | |
80 | { 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x01 }, | |
81 | [OPAL_ENTERPRISE_LOCKING_INFO_TABLE] = | |
82 | { 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
83 | ||
84 | /* C_PIN_TABLE object ID's */ | |
85 | ||
86 | [OPAL_C_PIN_MSID] = | |
87 | { 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x84, 0x02}, | |
88 | [OPAL_C_PIN_SID] = | |
89 | { 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x01}, | |
90 | [OPAL_C_PIN_ADMIN1] = | |
91 | { 0x00, 0x00, 0x00, 0x0B, 0x00, 0x01, 0x00, 0x01}, | |
92 | ||
93 | /* half UID's (only first 4 bytes used) */ | |
94 | ||
95 | [OPAL_HALF_UID_AUTHORITY_OBJ_REF] = | |
96 | { 0x00, 0x00, 0x0C, 0x05, 0xff, 0xff, 0xff, 0xff }, | |
97 | [OPAL_HALF_UID_BOOLEAN_ACE] = | |
98 | { 0x00, 0x00, 0x04, 0x0E, 0xff, 0xff, 0xff, 0xff }, | |
99 | ||
100 | /* special value for omitted optional parameter */ | |
101 | [OPAL_UID_HEXFF] = | |
102 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, | |
103 | }; | |
104 | ||
105 | /* | |
106 | * TCG Storage SSC Methods. | |
107 | * Derived from: TCG_Storage_Architecture_Core_Spec_v2.01_r1.00 | |
108 | * Section: 6.3 Assigned UIDs | |
109 | */ | |
110 | static const u8 opalmethod[][OPAL_UID_LENGTH] = { | |
111 | [OPAL_PROPERTIES] = | |
112 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x01 }, | |
113 | [OPAL_STARTSESSION] = | |
114 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x02 }, | |
115 | [OPAL_REVERT] = | |
116 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x02 }, | |
117 | [OPAL_ACTIVATE] = | |
118 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x03 }, | |
119 | [OPAL_EGET] = | |
120 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06 }, | |
121 | [OPAL_ESET] = | |
122 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x07 }, | |
123 | [OPAL_NEXT] = | |
124 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x08 }, | |
125 | [OPAL_EAUTHENTICATE] = | |
126 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0c }, | |
127 | [OPAL_GETACL] = | |
128 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0d }, | |
129 | [OPAL_GENKEY] = | |
130 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x10 }, | |
131 | [OPAL_REVERTSP] = | |
132 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x11 }, | |
133 | [OPAL_GET] = | |
134 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x16 }, | |
135 | [OPAL_SET] = | |
136 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x17 }, | |
137 | [OPAL_AUTHENTICATE] = | |
138 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x1c }, | |
139 | [OPAL_RANDOM] = | |
140 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x01 }, | |
141 | [OPAL_ERASE] = | |
142 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x08, 0x03 }, | |
143 | }; | |
144 | ||
145 | typedef int (cont_fn)(struct opal_dev *dev); | |
146 | ||
147 | static int end_opal_session_error(struct opal_dev *dev); | |
148 | ||
149 | struct opal_suspend_data { | |
150 | struct opal_lock_unlock unlk; | |
151 | u8 lr; | |
152 | struct list_head node; | |
153 | }; | |
154 | ||
155 | /* | |
156 | * Derived from: | |
157 | * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00 | |
158 | * Section: 5.1.5 Method Status Codes | |
159 | */ | |
160 | static const char * const opal_errors[] = { | |
161 | "Success", | |
162 | "Not Authorized", | |
163 | "Unknown Error", | |
164 | "SP Busy", | |
165 | "SP Failed", | |
166 | "SP Disabled", | |
167 | "SP Frozen", | |
168 | "No Sessions Available", | |
169 | "Uniqueness Conflict", | |
170 | "Insufficient Space", | |
171 | "Insufficient Rows", | |
172 | "Invalid Function", | |
173 | "Invalid Parameter", | |
174 | "Invalid Reference", | |
175 | "Unknown Error", | |
176 | "TPER Malfunction", | |
177 | "Transaction Failure", | |
178 | "Response Overflow", | |
179 | "Authority Locked Out", | |
180 | }; | |
181 | ||
182 | static const char *opal_error_to_human(int error) | |
183 | { | |
184 | if (error == 0x3f) | |
185 | return "Failed"; | |
186 | ||
187 | if (error >= ARRAY_SIZE(opal_errors) || error < 0) | |
188 | return "Unknown Error"; | |
189 | ||
190 | return opal_errors[error]; | |
191 | } | |
192 | ||
193 | static void print_buffer(const u8 *ptr, u32 length) | |
194 | { | |
195 | #ifdef DEBUG | |
196 | print_hex_dump_bytes("OPAL: ", DUMP_PREFIX_OFFSET, ptr, length); | |
197 | pr_debug("\n"); | |
198 | #endif | |
199 | } | |
200 | ||
201 | static bool check_tper(const void *data) | |
202 | { | |
203 | const struct d0_tper_features *tper = data; | |
204 | u8 flags = tper->supported_features; | |
205 | ||
206 | if (!(flags & TPER_SYNC_SUPPORTED)) { | |
207 | pr_err("TPer sync not supported. flags = %d\n", | |
208 | tper->supported_features); | |
209 | return false; | |
210 | } | |
211 | ||
212 | return true; | |
213 | } | |
214 | ||
215 | static bool check_sum(const void *data) | |
216 | { | |
217 | const struct d0_single_user_mode *sum = data; | |
218 | u32 nlo = be32_to_cpu(sum->num_locking_objects); | |
219 | ||
220 | if (nlo == 0) { | |
221 | pr_err("Need at least one locking object.\n"); | |
222 | return false; | |
223 | } | |
224 | ||
225 | pr_debug("Number of locking objects: %d\n", nlo); | |
226 | ||
227 | return true; | |
228 | } | |
229 | ||
230 | static u16 get_comid_v100(const void *data) | |
231 | { | |
232 | const struct d0_opal_v100 *v100 = data; | |
233 | ||
234 | return be16_to_cpu(v100->baseComID); | |
235 | } | |
236 | ||
237 | static u16 get_comid_v200(const void *data) | |
238 | { | |
239 | const struct d0_opal_v200 *v200 = data; | |
240 | ||
241 | return be16_to_cpu(v200->baseComID); | |
242 | } | |
243 | ||
244 | static int opal_send_cmd(struct opal_dev *dev) | |
245 | { | |
246 | return dev->send_recv(dev, dev->comid, TCG_SECP_01, | |
247 | dev->cmd, IO_BUFFER_LENGTH, | |
248 | true); | |
249 | } | |
250 | ||
251 | static int opal_recv_cmd(struct opal_dev *dev) | |
252 | { | |
253 | return dev->send_recv(dev, dev->comid, TCG_SECP_01, | |
254 | dev->resp, IO_BUFFER_LENGTH, | |
255 | false); | |
256 | } | |
257 | ||
258 | static int opal_recv_check(struct opal_dev *dev) | |
259 | { | |
260 | size_t buflen = IO_BUFFER_LENGTH; | |
261 | void *buffer = dev->resp; | |
262 | struct opal_header *hdr = buffer; | |
263 | int ret; | |
264 | ||
265 | do { | |
266 | pr_debug("Sent OPAL command: outstanding=%d, minTransfer=%d\n", | |
267 | hdr->cp.outstandingData, | |
268 | hdr->cp.minTransfer); | |
269 | ||
270 | if (hdr->cp.outstandingData == 0 || | |
271 | hdr->cp.minTransfer != 0) | |
272 | return 0; | |
273 | ||
274 | memset(buffer, 0, buflen); | |
275 | ret = opal_recv_cmd(dev); | |
276 | } while (!ret); | |
277 | ||
278 | return ret; | |
279 | } | |
280 | ||
281 | static int opal_send_recv(struct opal_dev *dev, cont_fn *cont) | |
282 | { | |
283 | int ret; | |
284 | ||
285 | ret = opal_send_cmd(dev); | |
286 | if (ret) | |
287 | return ret; | |
288 | ret = opal_recv_cmd(dev); | |
289 | if (ret) | |
290 | return ret; | |
291 | ret = opal_recv_check(dev); | |
292 | if (ret) | |
293 | return ret; | |
294 | return cont(dev); | |
295 | } | |
296 | ||
297 | static void check_geometry(struct opal_dev *dev, const void *data) | |
298 | { | |
299 | const struct d0_geometry_features *geo = data; | |
300 | ||
301 | dev->align = geo->alignment_granularity; | |
302 | dev->lowest_lba = geo->lowest_aligned_lba; | |
303 | } | |
304 | ||
305 | static int next(struct opal_dev *dev) | |
306 | { | |
307 | opal_step func; | |
308 | int error = 0; | |
309 | ||
310 | do { | |
311 | func = dev->funcs[dev->state]; | |
312 | if (!func) | |
313 | break; | |
314 | ||
315 | error = func(dev); | |
316 | if (error) { | |
317 | pr_err("Error on step function: %d with error %d: %s\n", | |
318 | dev->state, error, | |
319 | opal_error_to_human(error)); | |
320 | ||
321 | /* For each OPAL command we do a discovery0 then we | |
322 | * start some sort of session. | |
323 | * If we haven't passed state 1 then there was an error | |
324 | * on discovery0 or during the attempt to start a | |
325 | * session. Therefore we shouldn't attempt to terminate | |
326 | * a session, as one has not yet been created. | |
327 | */ | |
328 | if (dev->state > 1) | |
329 | return end_opal_session_error(dev); | |
330 | } | |
331 | dev->state++; | |
332 | } while (!error); | |
333 | ||
334 | return error; | |
335 | } | |
336 | ||
337 | static int opal_discovery0_end(struct opal_dev *dev) | |
338 | { | |
339 | bool found_com_id = false, supported = true, single_user = false; | |
340 | const struct d0_header *hdr = (struct d0_header *)dev->resp; | |
341 | const u8 *epos = dev->resp, *cpos = dev->resp; | |
342 | u16 comid = 0; | |
343 | ||
344 | print_buffer(dev->resp, be32_to_cpu(hdr->length)); | |
345 | ||
346 | epos += be32_to_cpu(hdr->length); /* end of buffer */ | |
347 | cpos += sizeof(*hdr); /* current position on buffer */ | |
348 | ||
349 | while (cpos < epos && supported) { | |
350 | const struct d0_features *body = | |
351 | (const struct d0_features *)cpos; | |
352 | ||
353 | switch (be16_to_cpu(body->code)) { | |
354 | case FC_TPER: | |
355 | supported = check_tper(body->features); | |
356 | break; | |
357 | case FC_SINGLEUSER: | |
358 | single_user = check_sum(body->features); | |
359 | break; | |
360 | case FC_GEOMETRY: | |
361 | check_geometry(dev, body); | |
362 | break; | |
363 | case FC_LOCKING: | |
364 | case FC_ENTERPRISE: | |
365 | case FC_DATASTORE: | |
366 | /* some ignored properties */ | |
367 | pr_debug("Found OPAL feature description: %d\n", | |
368 | be16_to_cpu(body->code)); | |
369 | break; | |
370 | case FC_OPALV100: | |
371 | comid = get_comid_v100(body->features); | |
372 | found_com_id = true; | |
373 | break; | |
374 | case FC_OPALV200: | |
375 | comid = get_comid_v200(body->features); | |
376 | found_com_id = true; | |
377 | break; | |
378 | case 0xbfff ... 0xffff: | |
379 | /* vendor specific, just ignore */ | |
380 | break; | |
381 | default: | |
382 | pr_debug("OPAL Unknown feature: %d\n", | |
383 | be16_to_cpu(body->code)); | |
384 | ||
385 | } | |
386 | cpos += body->length + 4; | |
387 | } | |
388 | ||
389 | if (!supported) { | |
390 | pr_err("This device is not Opal enabled. Not Supported!\n"); | |
391 | return -EOPNOTSUPP; | |
392 | } | |
393 | ||
394 | if (!single_user) | |
395 | pr_warn("Device doesn't support single user mode\n"); | |
396 | ||
397 | ||
398 | if (!found_com_id) { | |
399 | pr_warn("Could not find OPAL comid for device. Returning early\n"); | |
400 | return -EOPNOTSUPP;; | |
401 | } | |
402 | ||
403 | dev->comid = comid; | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
408 | static int opal_discovery0(struct opal_dev *dev) | |
409 | { | |
410 | int ret; | |
411 | ||
412 | memset(dev->resp, 0, IO_BUFFER_LENGTH); | |
413 | dev->comid = OPAL_DISCOVERY_COMID; | |
414 | ret = opal_recv_cmd(dev); | |
415 | if (ret) | |
416 | return ret; | |
417 | return opal_discovery0_end(dev); | |
418 | } | |
419 | ||
420 | static void add_token_u8(int *err, struct opal_dev *cmd, u8 tok) | |
421 | { | |
422 | if (*err) | |
423 | return; | |
424 | if (cmd->pos >= IO_BUFFER_LENGTH - 1) { | |
425 | pr_err("Error adding u8: end of buffer.\n"); | |
426 | *err = -ERANGE; | |
427 | return; | |
428 | } | |
429 | cmd->cmd[cmd->pos++] = tok; | |
430 | } | |
431 | ||
432 | static void add_short_atom_header(struct opal_dev *cmd, bool bytestring, | |
433 | bool has_sign, int len) | |
434 | { | |
435 | u8 atom; | |
436 | int err = 0; | |
437 | ||
438 | atom = SHORT_ATOM_ID; | |
439 | atom |= bytestring ? SHORT_ATOM_BYTESTRING : 0; | |
440 | atom |= has_sign ? SHORT_ATOM_SIGNED : 0; | |
441 | atom |= len & SHORT_ATOM_LEN_MASK; | |
442 | ||
443 | add_token_u8(&err, cmd, atom); | |
444 | } | |
445 | ||
446 | static void add_medium_atom_header(struct opal_dev *cmd, bool bytestring, | |
447 | bool has_sign, int len) | |
448 | { | |
449 | u8 header0; | |
450 | ||
451 | header0 = MEDIUM_ATOM_ID; | |
452 | header0 |= bytestring ? MEDIUM_ATOM_BYTESTRING : 0; | |
453 | header0 |= has_sign ? MEDIUM_ATOM_SIGNED : 0; | |
454 | header0 |= (len >> 8) & MEDIUM_ATOM_LEN_MASK; | |
455 | cmd->cmd[cmd->pos++] = header0; | |
456 | cmd->cmd[cmd->pos++] = len; | |
457 | } | |
458 | ||
459 | static void add_token_u64(int *err, struct opal_dev *cmd, u64 number) | |
460 | { | |
461 | ||
462 | size_t len; | |
463 | int msb; | |
464 | u8 n; | |
465 | ||
466 | if (!(number & ~TINY_ATOM_DATA_MASK)) { | |
467 | add_token_u8(err, cmd, number); | |
468 | return; | |
469 | } | |
470 | ||
471 | msb = fls(number); | |
472 | len = DIV_ROUND_UP(msb, 4); | |
473 | ||
474 | if (cmd->pos >= IO_BUFFER_LENGTH - len - 1) { | |
475 | pr_err("Error adding u64: end of buffer.\n"); | |
476 | *err = -ERANGE; | |
477 | return; | |
478 | } | |
479 | add_short_atom_header(cmd, false, false, len); | |
480 | while (len--) { | |
481 | n = number >> (len * 8); | |
482 | add_token_u8(err, cmd, n); | |
483 | } | |
484 | } | |
485 | ||
486 | static void add_token_bytestring(int *err, struct opal_dev *cmd, | |
487 | const u8 *bytestring, size_t len) | |
488 | { | |
489 | size_t header_len = 1; | |
490 | bool is_short_atom = true; | |
491 | ||
492 | if (*err) | |
493 | return; | |
494 | ||
495 | if (len & ~SHORT_ATOM_LEN_MASK) { | |
496 | header_len = 2; | |
497 | is_short_atom = false; | |
498 | } | |
499 | ||
500 | if (len >= IO_BUFFER_LENGTH - cmd->pos - header_len) { | |
501 | pr_err("Error adding bytestring: end of buffer.\n"); | |
502 | *err = -ERANGE; | |
503 | return; | |
504 | } | |
505 | ||
506 | if (is_short_atom) | |
507 | add_short_atom_header(cmd, true, false, len); | |
508 | else | |
509 | add_medium_atom_header(cmd, true, false, len); | |
510 | ||
511 | memcpy(&cmd->cmd[cmd->pos], bytestring, len); | |
512 | cmd->pos += len; | |
513 | ||
514 | } | |
515 | ||
516 | static int build_locking_range(u8 *buffer, size_t length, u8 lr) | |
517 | { | |
518 | if (length > OPAL_UID_LENGTH) { | |
519 | pr_err("Can't build locking range. Length OOB\n"); | |
520 | return -ERANGE; | |
521 | } | |
522 | ||
523 | memcpy(buffer, opaluid[OPAL_LOCKINGRANGE_GLOBAL], OPAL_UID_LENGTH); | |
524 | ||
525 | if (lr == 0) | |
526 | return 0; | |
527 | buffer[5] = LOCKING_RANGE_NON_GLOBAL; | |
528 | buffer[7] = lr; | |
529 | ||
530 | return 0; | |
531 | } | |
532 | ||
533 | static int build_locking_user(u8 *buffer, size_t length, u8 lr) | |
534 | { | |
535 | if (length > OPAL_UID_LENGTH) { | |
536 | pr_err("Can't build locking range user, Length OOB\n"); | |
537 | return -ERANGE; | |
538 | } | |
539 | ||
540 | memcpy(buffer, opaluid[OPAL_USER1_UID], OPAL_UID_LENGTH); | |
541 | ||
542 | buffer[7] = lr + 1; | |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
547 | static void set_comid(struct opal_dev *cmd, u16 comid) | |
548 | { | |
549 | struct opal_header *hdr = (struct opal_header *)cmd->cmd; | |
550 | ||
551 | hdr->cp.extendedComID[0] = comid >> 8; | |
552 | hdr->cp.extendedComID[1] = comid; | |
553 | hdr->cp.extendedComID[2] = 0; | |
554 | hdr->cp.extendedComID[3] = 0; | |
555 | } | |
556 | ||
557 | static int cmd_finalize(struct opal_dev *cmd, u32 hsn, u32 tsn) | |
558 | { | |
559 | struct opal_header *hdr; | |
560 | int err = 0; | |
561 | ||
562 | add_token_u8(&err, cmd, OPAL_ENDOFDATA); | |
563 | add_token_u8(&err, cmd, OPAL_STARTLIST); | |
564 | add_token_u8(&err, cmd, 0); | |
565 | add_token_u8(&err, cmd, 0); | |
566 | add_token_u8(&err, cmd, 0); | |
567 | add_token_u8(&err, cmd, OPAL_ENDLIST); | |
568 | ||
569 | if (err) { | |
570 | pr_err("Error finalizing command.\n"); | |
571 | return -EFAULT; | |
572 | } | |
573 | ||
574 | hdr = (struct opal_header *) cmd->cmd; | |
575 | ||
576 | hdr->pkt.tsn = cpu_to_be32(tsn); | |
577 | hdr->pkt.hsn = cpu_to_be32(hsn); | |
578 | ||
579 | hdr->subpkt.length = cpu_to_be32(cmd->pos - sizeof(*hdr)); | |
580 | while (cmd->pos % 4) { | |
581 | if (cmd->pos >= IO_BUFFER_LENGTH) { | |
582 | pr_err("Error: Buffer overrun\n"); | |
583 | return -ERANGE; | |
584 | } | |
585 | cmd->cmd[cmd->pos++] = 0; | |
586 | } | |
587 | hdr->pkt.length = cpu_to_be32(cmd->pos - sizeof(hdr->cp) - | |
588 | sizeof(hdr->pkt)); | |
589 | hdr->cp.length = cpu_to_be32(cmd->pos - sizeof(hdr->cp)); | |
590 | ||
591 | return 0; | |
592 | } | |
593 | ||
594 | static enum opal_response_token token_type(const struct parsed_resp *resp, | |
595 | int n) | |
596 | { | |
597 | const struct opal_resp_tok *tok; | |
598 | ||
599 | if (n >= resp->num) { | |
600 | pr_err("Token number doesn't exist: %d, resp: %d\n", | |
601 | n, resp->num); | |
602 | return OPAL_DTA_TOKENID_INVALID; | |
603 | } | |
604 | ||
605 | tok = &resp->toks[n]; | |
606 | if (tok->len == 0) { | |
607 | pr_err("Token length must be non-zero\n"); | |
608 | return OPAL_DTA_TOKENID_INVALID; | |
609 | } | |
610 | ||
611 | return tok->type; | |
612 | } | |
613 | ||
614 | /* | |
615 | * This function returns 0 in case of invalid token. One should call | |
616 | * token_type() first to find out if the token is valid or not. | |
617 | */ | |
618 | static enum opal_token response_get_token(const struct parsed_resp *resp, | |
619 | int n) | |
620 | { | |
621 | const struct opal_resp_tok *tok; | |
622 | ||
623 | if (n >= resp->num) { | |
624 | pr_err("Token number doesn't exist: %d, resp: %d\n", | |
625 | n, resp->num); | |
626 | return 0; | |
627 | } | |
628 | ||
629 | tok = &resp->toks[n]; | |
630 | if (tok->len == 0) { | |
631 | pr_err("Token length must be non-zero\n"); | |
632 | return 0; | |
633 | } | |
634 | ||
635 | return tok->pos[0]; | |
636 | } | |
637 | ||
638 | static size_t response_parse_tiny(struct opal_resp_tok *tok, | |
639 | const u8 *pos) | |
640 | { | |
641 | tok->pos = pos; | |
642 | tok->len = 1; | |
643 | tok->width = OPAL_WIDTH_TINY; | |
644 | ||
645 | if (pos[0] & TINY_ATOM_SIGNED) { | |
646 | tok->type = OPAL_DTA_TOKENID_SINT; | |
647 | } else { | |
648 | tok->type = OPAL_DTA_TOKENID_UINT; | |
649 | tok->stored.u = pos[0] & 0x3f; | |
650 | } | |
651 | ||
652 | return tok->len; | |
653 | } | |
654 | ||
655 | static size_t response_parse_short(struct opal_resp_tok *tok, | |
656 | const u8 *pos) | |
657 | { | |
658 | tok->pos = pos; | |
659 | tok->len = (pos[0] & SHORT_ATOM_LEN_MASK) + 1; | |
660 | tok->width = OPAL_WIDTH_SHORT; | |
661 | ||
662 | if (pos[0] & SHORT_ATOM_BYTESTRING) { | |
663 | tok->type = OPAL_DTA_TOKENID_BYTESTRING; | |
664 | } else if (pos[0] & SHORT_ATOM_SIGNED) { | |
665 | tok->type = OPAL_DTA_TOKENID_SINT; | |
666 | } else { | |
667 | u64 u_integer = 0; | |
668 | int i, b = 0; | |
669 | ||
670 | tok->type = OPAL_DTA_TOKENID_UINT; | |
671 | if (tok->len > 9) { | |
672 | pr_warn("uint64 with more than 8 bytes\n"); | |
673 | return -EINVAL; | |
674 | } | |
675 | for (i = tok->len - 1; i > 0; i--) { | |
676 | u_integer |= ((u64)pos[i] << (8 * b)); | |
677 | b++; | |
678 | } | |
679 | tok->stored.u = u_integer; | |
680 | } | |
681 | ||
682 | return tok->len; | |
683 | } | |
684 | ||
685 | static size_t response_parse_medium(struct opal_resp_tok *tok, | |
686 | const u8 *pos) | |
687 | { | |
688 | tok->pos = pos; | |
689 | tok->len = (((pos[0] & MEDIUM_ATOM_LEN_MASK) << 8) | pos[1]) + 2; | |
690 | tok->width = OPAL_WIDTH_MEDIUM; | |
691 | ||
692 | if (pos[0] & MEDIUM_ATOM_BYTESTRING) | |
693 | tok->type = OPAL_DTA_TOKENID_BYTESTRING; | |
694 | else if (pos[0] & MEDIUM_ATOM_SIGNED) | |
695 | tok->type = OPAL_DTA_TOKENID_SINT; | |
696 | else | |
697 | tok->type = OPAL_DTA_TOKENID_UINT; | |
698 | ||
699 | return tok->len; | |
700 | } | |
701 | ||
702 | static size_t response_parse_long(struct opal_resp_tok *tok, | |
703 | const u8 *pos) | |
704 | { | |
705 | tok->pos = pos; | |
706 | tok->len = ((pos[1] << 16) | (pos[2] << 8) | pos[3]) + 4; | |
707 | tok->width = OPAL_WIDTH_LONG; | |
708 | ||
709 | if (pos[0] & LONG_ATOM_BYTESTRING) | |
710 | tok->type = OPAL_DTA_TOKENID_BYTESTRING; | |
711 | else if (pos[0] & LONG_ATOM_SIGNED) | |
712 | tok->type = OPAL_DTA_TOKENID_SINT; | |
713 | else | |
714 | tok->type = OPAL_DTA_TOKENID_UINT; | |
715 | ||
716 | return tok->len; | |
717 | } | |
718 | ||
719 | static size_t response_parse_token(struct opal_resp_tok *tok, | |
720 | const u8 *pos) | |
721 | { | |
722 | tok->pos = pos; | |
723 | tok->len = 1; | |
724 | tok->type = OPAL_DTA_TOKENID_TOKEN; | |
725 | tok->width = OPAL_WIDTH_TOKEN; | |
726 | ||
727 | return tok->len; | |
728 | } | |
729 | ||
730 | static int response_parse(const u8 *buf, size_t length, | |
731 | struct parsed_resp *resp) | |
732 | { | |
733 | const struct opal_header *hdr; | |
734 | struct opal_resp_tok *iter; | |
735 | int num_entries = 0; | |
736 | int total; | |
737 | size_t token_length; | |
738 | const u8 *pos; | |
739 | ||
740 | if (!buf) | |
741 | return -EFAULT; | |
742 | ||
743 | if (!resp) | |
744 | return -EFAULT; | |
745 | ||
746 | hdr = (struct opal_header *)buf; | |
747 | pos = buf; | |
748 | pos += sizeof(*hdr); | |
749 | ||
750 | pr_debug("Response size: cp: %d, pkt: %d, subpkt: %d\n", | |
751 | be32_to_cpu(hdr->cp.length), | |
752 | be32_to_cpu(hdr->pkt.length), | |
753 | be32_to_cpu(hdr->subpkt.length)); | |
754 | ||
755 | if (hdr->cp.length == 0 || hdr->pkt.length == 0 || | |
756 | hdr->subpkt.length == 0) { | |
757 | pr_err("Bad header length. cp: %d, pkt: %d, subpkt: %d\n", | |
758 | be32_to_cpu(hdr->cp.length), | |
759 | be32_to_cpu(hdr->pkt.length), | |
760 | be32_to_cpu(hdr->subpkt.length)); | |
761 | print_buffer(pos, sizeof(*hdr)); | |
762 | return -EINVAL; | |
763 | } | |
764 | ||
765 | if (pos > buf + length) | |
766 | return -EFAULT; | |
767 | ||
768 | iter = resp->toks; | |
769 | total = be32_to_cpu(hdr->subpkt.length); | |
770 | print_buffer(pos, total); | |
771 | while (total > 0) { | |
772 | if (pos[0] <= TINY_ATOM_BYTE) /* tiny atom */ | |
773 | token_length = response_parse_tiny(iter, pos); | |
774 | else if (pos[0] <= SHORT_ATOM_BYTE) /* short atom */ | |
775 | token_length = response_parse_short(iter, pos); | |
776 | else if (pos[0] <= MEDIUM_ATOM_BYTE) /* medium atom */ | |
777 | token_length = response_parse_medium(iter, pos); | |
778 | else if (pos[0] <= LONG_ATOM_BYTE) /* long atom */ | |
779 | token_length = response_parse_long(iter, pos); | |
780 | else /* TOKEN */ | |
781 | token_length = response_parse_token(iter, pos); | |
782 | ||
783 | if (token_length == -EINVAL) | |
784 | return -EINVAL; | |
785 | ||
786 | pos += token_length; | |
787 | total -= token_length; | |
788 | iter++; | |
789 | num_entries++; | |
790 | } | |
791 | ||
792 | if (num_entries == 0) { | |
793 | pr_err("Couldn't parse response.\n"); | |
794 | return -EINVAL; | |
795 | } | |
796 | resp->num = num_entries; | |
797 | ||
798 | return 0; | |
799 | } | |
800 | ||
801 | static size_t response_get_string(const struct parsed_resp *resp, int n, | |
802 | const char **store) | |
803 | { | |
804 | *store = NULL; | |
805 | if (!resp) { | |
806 | pr_err("Response is NULL\n"); | |
807 | return 0; | |
808 | } | |
809 | ||
810 | if (n > resp->num) { | |
811 | pr_err("Response has %d tokens. Can't access %d\n", | |
812 | resp->num, n); | |
813 | return 0; | |
814 | } | |
815 | ||
816 | if (resp->toks[n].type != OPAL_DTA_TOKENID_BYTESTRING) { | |
817 | pr_err("Token is not a byte string!\n"); | |
818 | return 0; | |
819 | } | |
820 | ||
821 | *store = resp->toks[n].pos + 1; | |
822 | return resp->toks[n].len - 1; | |
823 | } | |
824 | ||
825 | static u64 response_get_u64(const struct parsed_resp *resp, int n) | |
826 | { | |
827 | if (!resp) { | |
828 | pr_err("Response is NULL\n"); | |
829 | return 0; | |
830 | } | |
831 | ||
832 | if (n > resp->num) { | |
833 | pr_err("Response has %d tokens. Can't access %d\n", | |
834 | resp->num, n); | |
835 | return 0; | |
836 | } | |
837 | ||
838 | if (resp->toks[n].type != OPAL_DTA_TOKENID_UINT) { | |
839 | pr_err("Token is not unsigned it: %d\n", | |
840 | resp->toks[n].type); | |
841 | return 0; | |
842 | } | |
843 | ||
844 | if (!(resp->toks[n].width == OPAL_WIDTH_TINY || | |
845 | resp->toks[n].width == OPAL_WIDTH_SHORT)) { | |
846 | pr_err("Atom is not short or tiny: %d\n", | |
847 | resp->toks[n].width); | |
848 | return 0; | |
849 | } | |
850 | ||
851 | return resp->toks[n].stored.u; | |
852 | } | |
853 | ||
854 | static u8 response_status(const struct parsed_resp *resp) | |
855 | { | |
856 | if (token_type(resp, 0) == OPAL_DTA_TOKENID_TOKEN && | |
857 | response_get_token(resp, 0) == OPAL_ENDOFSESSION) { | |
858 | return 0; | |
859 | } | |
860 | ||
861 | if (resp->num < 5) | |
862 | return DTAERROR_NO_METHOD_STATUS; | |
863 | ||
864 | if (token_type(resp, resp->num - 1) != OPAL_DTA_TOKENID_TOKEN || | |
865 | token_type(resp, resp->num - 5) != OPAL_DTA_TOKENID_TOKEN || | |
866 | response_get_token(resp, resp->num - 1) != OPAL_ENDLIST || | |
867 | response_get_token(resp, resp->num - 5) != OPAL_STARTLIST) | |
868 | return DTAERROR_NO_METHOD_STATUS; | |
869 | ||
870 | return response_get_u64(resp, resp->num - 4); | |
871 | } | |
872 | ||
873 | /* Parses and checks for errors */ | |
874 | static int parse_and_check_status(struct opal_dev *dev) | |
875 | { | |
876 | int error; | |
877 | ||
878 | print_buffer(dev->cmd, dev->pos); | |
879 | ||
880 | error = response_parse(dev->resp, IO_BUFFER_LENGTH, &dev->parsed); | |
881 | if (error) { | |
882 | pr_err("Couldn't parse response.\n"); | |
883 | return error; | |
884 | } | |
885 | ||
886 | return response_status(&dev->parsed); | |
887 | } | |
888 | ||
889 | static void clear_opal_cmd(struct opal_dev *dev) | |
890 | { | |
891 | dev->pos = sizeof(struct opal_header); | |
892 | memset(dev->cmd, 0, IO_BUFFER_LENGTH); | |
893 | } | |
894 | ||
895 | static int start_opal_session_cont(struct opal_dev *dev) | |
896 | { | |
897 | u32 hsn, tsn; | |
898 | int error = 0; | |
899 | ||
900 | error = parse_and_check_status(dev); | |
901 | if (error) | |
902 | return error; | |
903 | ||
904 | hsn = response_get_u64(&dev->parsed, 4); | |
905 | tsn = response_get_u64(&dev->parsed, 5); | |
906 | ||
907 | if (hsn == 0 && tsn == 0) { | |
908 | pr_err("Couldn't authenticate session\n"); | |
909 | return -EPERM; | |
910 | } | |
911 | ||
912 | dev->hsn = hsn; | |
913 | dev->tsn = tsn; | |
914 | return 0; | |
915 | } | |
916 | ||
917 | static void add_suspend_info(struct opal_dev *dev, | |
918 | struct opal_suspend_data *sus) | |
919 | { | |
920 | struct opal_suspend_data *iter; | |
921 | ||
922 | list_for_each_entry(iter, &dev->unlk_lst, node) { | |
923 | if (iter->lr == sus->lr) { | |
924 | list_del(&iter->node); | |
925 | kfree(iter); | |
926 | break; | |
927 | } | |
928 | } | |
929 | list_add_tail(&sus->node, &dev->unlk_lst); | |
930 | } | |
931 | ||
932 | static int end_session_cont(struct opal_dev *dev) | |
933 | { | |
934 | dev->hsn = 0; | |
935 | dev->tsn = 0; | |
936 | return parse_and_check_status(dev); | |
937 | } | |
938 | ||
939 | static int finalize_and_send(struct opal_dev *dev, cont_fn cont) | |
940 | { | |
941 | int ret; | |
942 | ||
943 | ret = cmd_finalize(dev, dev->hsn, dev->tsn); | |
944 | if (ret) { | |
945 | pr_err("Error finalizing command buffer: %d\n", ret); | |
946 | return ret; | |
947 | } | |
948 | ||
949 | print_buffer(dev->cmd, dev->pos); | |
950 | ||
951 | return opal_send_recv(dev, cont); | |
952 | } | |
953 | ||
954 | static int gen_key(struct opal_dev *dev) | |
955 | { | |
956 | const u8 *method; | |
957 | u8 uid[OPAL_UID_LENGTH]; | |
958 | int err = 0; | |
959 | ||
960 | clear_opal_cmd(dev); | |
961 | set_comid(dev, dev->comid); | |
962 | ||
963 | memcpy(uid, dev->prev_data, min(sizeof(uid), dev->prev_d_len)); | |
964 | method = opalmethod[OPAL_GENKEY]; | |
965 | kfree(dev->prev_data); | |
966 | dev->prev_data = NULL; | |
967 | ||
968 | add_token_u8(&err, dev, OPAL_CALL); | |
969 | add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH); | |
970 | add_token_bytestring(&err, dev, opalmethod[OPAL_GENKEY], | |
971 | OPAL_UID_LENGTH); | |
972 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
973 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
974 | ||
975 | if (err) { | |
976 | pr_err("Error building gen key command\n"); | |
977 | return err; | |
978 | ||
979 | } | |
980 | return finalize_and_send(dev, parse_and_check_status); | |
981 | } | |
982 | ||
983 | static int get_active_key_cont(struct opal_dev *dev) | |
984 | { | |
985 | const char *activekey; | |
986 | size_t keylen; | |
987 | int error = 0; | |
988 | ||
989 | error = parse_and_check_status(dev); | |
990 | if (error) | |
991 | return error; | |
992 | keylen = response_get_string(&dev->parsed, 4, &activekey); | |
993 | if (!activekey) { | |
994 | pr_err("%s: Couldn't extract the Activekey from the response\n", | |
995 | __func__); | |
996 | return OPAL_INVAL_PARAM; | |
997 | } | |
998 | dev->prev_data = kmemdup(activekey, keylen, GFP_KERNEL); | |
999 | ||
1000 | if (!dev->prev_data) | |
1001 | return -ENOMEM; | |
1002 | ||
1003 | dev->prev_d_len = keylen; | |
1004 | ||
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | static int get_active_key(struct opal_dev *dev) | |
1009 | { | |
1010 | u8 uid[OPAL_UID_LENGTH]; | |
1011 | int err = 0; | |
1012 | u8 *lr; | |
1013 | ||
1014 | clear_opal_cmd(dev); | |
1015 | set_comid(dev, dev->comid); | |
1016 | lr = dev->func_data[dev->state]; | |
1017 | ||
1018 | err = build_locking_range(uid, sizeof(uid), *lr); | |
1019 | if (err) | |
1020 | return err; | |
1021 | ||
1022 | err = 0; | |
1023 | add_token_u8(&err, dev, OPAL_CALL); | |
1024 | add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH); | |
1025 | add_token_bytestring(&err, dev, opalmethod[OPAL_GET], OPAL_UID_LENGTH); | |
1026 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1027 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1028 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1029 | add_token_u8(&err, dev, 3); /* startCloumn */ | |
1030 | add_token_u8(&err, dev, 10); /* ActiveKey */ | |
1031 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1032 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1033 | add_token_u8(&err, dev, 4); /* endColumn */ | |
1034 | add_token_u8(&err, dev, 10); /* ActiveKey */ | |
1035 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1036 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1037 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1038 | if (err) { | |
1039 | pr_err("Error building get active key command\n"); | |
1040 | return err; | |
1041 | } | |
1042 | ||
1043 | return finalize_and_send(dev, get_active_key_cont); | |
1044 | } | |
1045 | ||
1046 | static int generic_lr_enable_disable(struct opal_dev *dev, | |
1047 | u8 *uid, bool rle, bool wle, | |
1048 | bool rl, bool wl) | |
1049 | { | |
1050 | int err = 0; | |
1051 | ||
1052 | add_token_u8(&err, dev, OPAL_CALL); | |
1053 | add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH); | |
1054 | add_token_bytestring(&err, dev, opalmethod[OPAL_SET], OPAL_UID_LENGTH); | |
1055 | ||
1056 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1057 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1058 | add_token_u8(&err, dev, OPAL_VALUES); | |
1059 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1060 | ||
1061 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1062 | add_token_u8(&err, dev, 5); /* ReadLockEnabled */ | |
1063 | add_token_u8(&err, dev, rle); | |
1064 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1065 | ||
1066 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1067 | add_token_u8(&err, dev, 6); /* WriteLockEnabled */ | |
1068 | add_token_u8(&err, dev, wle); | |
1069 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1070 | ||
1071 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1072 | add_token_u8(&err, dev, OPAL_READLOCKED); | |
1073 | add_token_u8(&err, dev, rl); | |
1074 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1075 | ||
1076 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1077 | add_token_u8(&err, dev, OPAL_WRITELOCKED); | |
1078 | add_token_u8(&err, dev, wl); | |
1079 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1080 | ||
1081 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1082 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1083 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1084 | return err; | |
1085 | } | |
1086 | ||
1087 | static inline int enable_global_lr(struct opal_dev *dev, u8 *uid, | |
1088 | struct opal_user_lr_setup *setup) | |
1089 | { | |
1090 | int err; | |
1091 | ||
1092 | err = generic_lr_enable_disable(dev, uid, !!setup->RLE, !!setup->WLE, | |
1093 | 0, 0); | |
1094 | if (err) | |
1095 | pr_err("Failed to create enable global lr command\n"); | |
1096 | return err; | |
1097 | } | |
1098 | ||
1099 | static int setup_locking_range(struct opal_dev *dev) | |
1100 | { | |
1101 | u8 uid[OPAL_UID_LENGTH]; | |
1102 | struct opal_user_lr_setup *setup; | |
1103 | u8 lr; | |
1104 | int err = 0; | |
1105 | ||
1106 | clear_opal_cmd(dev); | |
1107 | set_comid(dev, dev->comid); | |
1108 | ||
1109 | setup = dev->func_data[dev->state]; | |
1110 | lr = setup->session.opal_key.lr; | |
1111 | err = build_locking_range(uid, sizeof(uid), lr); | |
1112 | if (err) | |
1113 | return err; | |
1114 | ||
1115 | if (lr == 0) | |
1116 | err = enable_global_lr(dev, uid, setup); | |
1117 | else { | |
1118 | add_token_u8(&err, dev, OPAL_CALL); | |
1119 | add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH); | |
1120 | add_token_bytestring(&err, dev, opalmethod[OPAL_SET], | |
1121 | OPAL_UID_LENGTH); | |
1122 | ||
1123 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1124 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1125 | add_token_u8(&err, dev, OPAL_VALUES); | |
1126 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1127 | ||
1128 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1129 | add_token_u8(&err, dev, 3); /* Ranges Start */ | |
1130 | add_token_u64(&err, dev, setup->range_start); | |
1131 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1132 | ||
1133 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1134 | add_token_u8(&err, dev, 4); /* Ranges length */ | |
1135 | add_token_u64(&err, dev, setup->range_length); | |
1136 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1137 | ||
1138 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1139 | add_token_u8(&err, dev, 5); /*ReadLockEnabled */ | |
1140 | add_token_u64(&err, dev, !!setup->RLE); | |
1141 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1142 | ||
1143 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1144 | add_token_u8(&err, dev, 6); /*WriteLockEnabled*/ | |
1145 | add_token_u64(&err, dev, !!setup->WLE); | |
1146 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1147 | ||
1148 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1149 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1150 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1151 | ||
1152 | } | |
1153 | if (err) { | |
1154 | pr_err("Error building Setup Locking range command.\n"); | |
1155 | return err; | |
1156 | ||
1157 | } | |
1158 | ||
1159 | return finalize_and_send(dev, parse_and_check_status); | |
1160 | } | |
1161 | ||
1162 | static int start_generic_opal_session(struct opal_dev *dev, | |
1163 | enum opal_uid auth, | |
1164 | enum opal_uid sp_type, | |
1165 | const char *key, | |
1166 | u8 key_len) | |
1167 | { | |
1168 | u32 hsn; | |
1169 | int err = 0; | |
1170 | ||
1171 | if (key == NULL && auth != OPAL_ANYBODY_UID) { | |
1172 | pr_err("%s: Attempted to open ADMIN_SP Session without a Host" \ | |
1173 | "Challenge, and not as the Anybody UID\n", __func__); | |
1174 | return OPAL_INVAL_PARAM; | |
1175 | } | |
1176 | ||
1177 | clear_opal_cmd(dev); | |
1178 | ||
1179 | set_comid(dev, dev->comid); | |
1180 | hsn = GENERIC_HOST_SESSION_NUM; | |
1181 | ||
1182 | add_token_u8(&err, dev, OPAL_CALL); | |
1183 | add_token_bytestring(&err, dev, opaluid[OPAL_SMUID_UID], | |
1184 | OPAL_UID_LENGTH); | |
1185 | add_token_bytestring(&err, dev, opalmethod[OPAL_STARTSESSION], | |
1186 | OPAL_UID_LENGTH); | |
1187 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1188 | add_token_u64(&err, dev, hsn); | |
1189 | add_token_bytestring(&err, dev, opaluid[sp_type], OPAL_UID_LENGTH); | |
1190 | add_token_u8(&err, dev, 1); | |
1191 | ||
1192 | switch (auth) { | |
1193 | case OPAL_ANYBODY_UID: | |
1194 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1195 | break; | |
1196 | case OPAL_ADMIN1_UID: | |
1197 | case OPAL_SID_UID: | |
1198 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1199 | add_token_u8(&err, dev, 0); /* HostChallenge */ | |
1200 | add_token_bytestring(&err, dev, key, key_len); | |
1201 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1202 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1203 | add_token_u8(&err, dev, 3); /* HostSignAuth */ | |
1204 | add_token_bytestring(&err, dev, opaluid[auth], | |
1205 | OPAL_UID_LENGTH); | |
1206 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1207 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1208 | break; | |
1209 | default: | |
1210 | pr_err("Cannot start Admin SP session with auth %d\n", auth); | |
1211 | return OPAL_INVAL_PARAM; | |
1212 | } | |
1213 | ||
1214 | if (err) { | |
1215 | pr_err("Error building start adminsp session command.\n"); | |
1216 | return err; | |
1217 | } | |
1218 | ||
1219 | return finalize_and_send(dev, start_opal_session_cont); | |
1220 | } | |
1221 | ||
1222 | static int start_anybodyASP_opal_session(struct opal_dev *dev) | |
1223 | { | |
1224 | return start_generic_opal_session(dev, OPAL_ANYBODY_UID, | |
1225 | OPAL_ADMINSP_UID, NULL, 0); | |
1226 | } | |
1227 | ||
1228 | static int start_SIDASP_opal_session(struct opal_dev *dev) | |
1229 | { | |
1230 | int ret; | |
1231 | const u8 *key = dev->prev_data; | |
1232 | struct opal_key *okey; | |
1233 | ||
1234 | if (!key) { | |
1235 | okey = dev->func_data[dev->state]; | |
1236 | ret = start_generic_opal_session(dev, OPAL_SID_UID, | |
1237 | OPAL_ADMINSP_UID, | |
1238 | okey->key, | |
1239 | okey->key_len); | |
1240 | } else { | |
1241 | ret = start_generic_opal_session(dev, OPAL_SID_UID, | |
1242 | OPAL_ADMINSP_UID, | |
1243 | key, dev->prev_d_len); | |
1244 | kfree(key); | |
1245 | dev->prev_data = NULL; | |
1246 | } | |
1247 | return ret; | |
1248 | } | |
1249 | ||
1250 | static inline int start_admin1LSP_opal_session(struct opal_dev *dev) | |
1251 | { | |
1252 | struct opal_key *key = dev->func_data[dev->state]; | |
1253 | ||
1254 | return start_generic_opal_session(dev, OPAL_ADMIN1_UID, | |
1255 | OPAL_LOCKINGSP_UID, | |
1256 | key->key, key->key_len); | |
1257 | } | |
1258 | ||
1259 | static int start_auth_opal_session(struct opal_dev *dev) | |
1260 | { | |
1261 | u8 lk_ul_user[OPAL_UID_LENGTH]; | |
1262 | int err = 0; | |
1263 | ||
1264 | struct opal_session_info *session = dev->func_data[dev->state]; | |
1265 | size_t keylen = session->opal_key.key_len; | |
1266 | u8 *key = session->opal_key.key; | |
1267 | u32 hsn = GENERIC_HOST_SESSION_NUM; | |
1268 | ||
1269 | clear_opal_cmd(dev); | |
1270 | set_comid(dev, dev->comid); | |
1271 | ||
1272 | if (session->sum) { | |
1273 | err = build_locking_user(lk_ul_user, sizeof(lk_ul_user), | |
1274 | session->opal_key.lr); | |
1275 | if (err) | |
1276 | return err; | |
1277 | ||
1278 | } else if (session->who != OPAL_ADMIN1 && !session->sum) { | |
1279 | err = build_locking_user(lk_ul_user, sizeof(lk_ul_user), | |
1280 | session->who - 1); | |
1281 | if (err) | |
1282 | return err; | |
1283 | } else | |
1284 | memcpy(lk_ul_user, opaluid[OPAL_ADMIN1_UID], OPAL_UID_LENGTH); | |
1285 | ||
1286 | add_token_u8(&err, dev, OPAL_CALL); | |
1287 | add_token_bytestring(&err, dev, opaluid[OPAL_SMUID_UID], | |
1288 | OPAL_UID_LENGTH); | |
1289 | add_token_bytestring(&err, dev, opalmethod[OPAL_STARTSESSION], | |
1290 | OPAL_UID_LENGTH); | |
1291 | ||
1292 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1293 | add_token_u64(&err, dev, hsn); | |
1294 | add_token_bytestring(&err, dev, opaluid[OPAL_LOCKINGSP_UID], | |
1295 | OPAL_UID_LENGTH); | |
1296 | add_token_u8(&err, dev, 1); | |
1297 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1298 | add_token_u8(&err, dev, 0); | |
1299 | add_token_bytestring(&err, dev, key, keylen); | |
1300 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1301 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1302 | add_token_u8(&err, dev, 3); | |
1303 | add_token_bytestring(&err, dev, lk_ul_user, OPAL_UID_LENGTH); | |
1304 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1305 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1306 | ||
1307 | if (err) { | |
1308 | pr_err("Error building STARTSESSION command.\n"); | |
1309 | return err; | |
1310 | } | |
1311 | ||
1312 | return finalize_and_send(dev, start_opal_session_cont); | |
1313 | } | |
1314 | ||
1315 | static int revert_tper(struct opal_dev *dev) | |
1316 | { | |
1317 | int err = 0; | |
1318 | ||
1319 | clear_opal_cmd(dev); | |
1320 | set_comid(dev, dev->comid); | |
1321 | ||
1322 | add_token_u8(&err, dev, OPAL_CALL); | |
1323 | add_token_bytestring(&err, dev, opaluid[OPAL_ADMINSP_UID], | |
1324 | OPAL_UID_LENGTH); | |
1325 | add_token_bytestring(&err, dev, opalmethod[OPAL_REVERT], | |
1326 | OPAL_UID_LENGTH); | |
1327 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1328 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1329 | if (err) { | |
1330 | pr_err("Error building REVERT TPER command.\n"); | |
1331 | return err; | |
1332 | } | |
1333 | ||
1334 | return finalize_and_send(dev, parse_and_check_status); | |
1335 | } | |
1336 | ||
1337 | static int internal_activate_user(struct opal_dev *dev) | |
1338 | { | |
1339 | struct opal_session_info *session = dev->func_data[dev->state]; | |
1340 | u8 uid[OPAL_UID_LENGTH]; | |
1341 | int err = 0; | |
1342 | ||
1343 | clear_opal_cmd(dev); | |
1344 | set_comid(dev, dev->comid); | |
1345 | ||
1346 | memcpy(uid, opaluid[OPAL_USER1_UID], OPAL_UID_LENGTH); | |
1347 | uid[7] = session->who; | |
1348 | ||
1349 | add_token_u8(&err, dev, OPAL_CALL); | |
1350 | add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH); | |
1351 | add_token_bytestring(&err, dev, opalmethod[OPAL_SET], OPAL_UID_LENGTH); | |
1352 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1353 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1354 | add_token_u8(&err, dev, OPAL_VALUES); | |
1355 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1356 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1357 | add_token_u8(&err, dev, 5); /* Enabled */ | |
1358 | add_token_u8(&err, dev, OPAL_TRUE); | |
1359 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1360 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1361 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1362 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1363 | ||
1364 | if (err) { | |
1365 | pr_err("Error building Activate UserN command.\n"); | |
1366 | return err; | |
1367 | } | |
1368 | ||
1369 | return finalize_and_send(dev, parse_and_check_status); | |
1370 | } | |
1371 | ||
1372 | static int erase_locking_range(struct opal_dev *dev) | |
1373 | { | |
1374 | struct opal_session_info *session; | |
1375 | u8 uid[OPAL_UID_LENGTH]; | |
1376 | int err = 0; | |
1377 | ||
1378 | clear_opal_cmd(dev); | |
1379 | set_comid(dev, dev->comid); | |
1380 | session = dev->func_data[dev->state]; | |
1381 | ||
1382 | if (build_locking_range(uid, sizeof(uid), session->opal_key.lr) < 0) | |
1383 | return -ERANGE; | |
1384 | ||
1385 | add_token_u8(&err, dev, OPAL_CALL); | |
1386 | add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH); | |
1387 | add_token_bytestring(&err, dev, opalmethod[OPAL_ERASE], | |
1388 | OPAL_UID_LENGTH); | |
1389 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1390 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1391 | ||
1392 | if (err) { | |
1393 | pr_err("Error building Erase Locking Range Command.\n"); | |
1394 | return err; | |
1395 | } | |
1396 | return finalize_and_send(dev, parse_and_check_status); | |
1397 | } | |
1398 | ||
1399 | static int set_mbr_done(struct opal_dev *dev) | |
1400 | { | |
1401 | u8 mbr_done_tf = *(u8 *)dev->func_data[dev->state]; | |
1402 | int err = 0; | |
1403 | ||
1404 | clear_opal_cmd(dev); | |
1405 | set_comid(dev, dev->comid); | |
1406 | ||
1407 | add_token_u8(&err, dev, OPAL_CALL); | |
1408 | add_token_bytestring(&err, dev, opaluid[OPAL_MBRCONTROL], | |
1409 | OPAL_UID_LENGTH); | |
1410 | add_token_bytestring(&err, dev, opalmethod[OPAL_SET], OPAL_UID_LENGTH); | |
1411 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1412 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1413 | add_token_u8(&err, dev, OPAL_VALUES); | |
1414 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1415 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1416 | add_token_u8(&err, dev, 2); /* Done */ | |
1417 | add_token_u8(&err, dev, mbr_done_tf); /* Done T or F */ | |
1418 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1419 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1420 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1421 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1422 | ||
1423 | if (err) { | |
1424 | pr_err("Error Building set MBR Done command\n"); | |
1425 | return err; | |
1426 | } | |
1427 | ||
1428 | return finalize_and_send(dev, parse_and_check_status); | |
1429 | } | |
1430 | ||
1431 | static int set_mbr_enable_disable(struct opal_dev *dev) | |
1432 | { | |
1433 | u8 mbr_en_dis = *(u8 *)dev->func_data[dev->state]; | |
1434 | int err = 0; | |
1435 | ||
1436 | clear_opal_cmd(dev); | |
1437 | set_comid(dev, dev->comid); | |
1438 | ||
1439 | add_token_u8(&err, dev, OPAL_CALL); | |
1440 | add_token_bytestring(&err, dev, opaluid[OPAL_MBRCONTROL], | |
1441 | OPAL_UID_LENGTH); | |
1442 | add_token_bytestring(&err, dev, opalmethod[OPAL_SET], OPAL_UID_LENGTH); | |
1443 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1444 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1445 | add_token_u8(&err, dev, OPAL_VALUES); | |
1446 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1447 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1448 | add_token_u8(&err, dev, 1); | |
1449 | add_token_u8(&err, dev, mbr_en_dis); | |
1450 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1451 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1452 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1453 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1454 | ||
1455 | if (err) { | |
1456 | pr_err("Error Building set MBR done command\n"); | |
1457 | return err; | |
1458 | } | |
1459 | ||
1460 | return finalize_and_send(dev, parse_and_check_status); | |
1461 | } | |
1462 | ||
1463 | static int generic_pw_cmd(u8 *key, size_t key_len, u8 *cpin_uid, | |
1464 | struct opal_dev *dev) | |
1465 | { | |
1466 | int err = 0; | |
1467 | ||
1468 | clear_opal_cmd(dev); | |
1469 | set_comid(dev, dev->comid); | |
1470 | ||
1471 | add_token_u8(&err, dev, OPAL_CALL); | |
1472 | add_token_bytestring(&err, dev, cpin_uid, OPAL_UID_LENGTH); | |
1473 | add_token_bytestring(&err, dev, opalmethod[OPAL_SET], | |
1474 | OPAL_UID_LENGTH); | |
1475 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1476 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1477 | add_token_u8(&err, dev, OPAL_VALUES); | |
1478 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1479 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1480 | add_token_u8(&err, dev, 3); /* PIN */ | |
1481 | add_token_bytestring(&err, dev, key, key_len); | |
1482 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1483 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1484 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1485 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1486 | ||
1487 | return err; | |
1488 | } | |
1489 | ||
1490 | static int set_new_pw(struct opal_dev *dev) | |
1491 | { | |
1492 | u8 cpin_uid[OPAL_UID_LENGTH]; | |
1493 | struct opal_session_info *usr = dev->func_data[dev->state]; | |
1494 | ||
1495 | ||
1496 | memcpy(cpin_uid, opaluid[OPAL_C_PIN_ADMIN1], OPAL_UID_LENGTH); | |
1497 | ||
1498 | if (usr->who != OPAL_ADMIN1) { | |
1499 | cpin_uid[5] = 0x03; | |
1500 | if (usr->sum) | |
1501 | cpin_uid[7] = usr->opal_key.lr + 1; | |
1502 | else | |
1503 | cpin_uid[7] = usr->who; | |
1504 | } | |
1505 | ||
1506 | if (generic_pw_cmd(usr->opal_key.key, usr->opal_key.key_len, | |
1507 | cpin_uid, dev)) { | |
1508 | pr_err("Error building set password command.\n"); | |
1509 | return -ERANGE; | |
1510 | } | |
1511 | ||
1512 | return finalize_and_send(dev, parse_and_check_status); | |
1513 | } | |
1514 | ||
1515 | static int set_sid_cpin_pin(struct opal_dev *dev) | |
1516 | { | |
1517 | u8 cpin_uid[OPAL_UID_LENGTH]; | |
1518 | struct opal_key *key = dev->func_data[dev->state]; | |
1519 | ||
1520 | memcpy(cpin_uid, opaluid[OPAL_C_PIN_SID], OPAL_UID_LENGTH); | |
1521 | ||
1522 | if (generic_pw_cmd(key->key, key->key_len, cpin_uid, dev)) { | |
1523 | pr_err("Error building Set SID cpin\n"); | |
1524 | return -ERANGE; | |
1525 | } | |
1526 | return finalize_and_send(dev, parse_and_check_status); | |
1527 | } | |
1528 | ||
1529 | static int add_user_to_lr(struct opal_dev *dev) | |
1530 | { | |
1531 | u8 lr_buffer[OPAL_UID_LENGTH]; | |
1532 | u8 user_uid[OPAL_UID_LENGTH]; | |
1533 | struct opal_lock_unlock *lkul; | |
1534 | int err = 0; | |
1535 | ||
1536 | clear_opal_cmd(dev); | |
1537 | set_comid(dev, dev->comid); | |
1538 | ||
1539 | lkul = dev->func_data[dev->state]; | |
1540 | ||
1541 | memcpy(lr_buffer, opaluid[OPAL_LOCKINGRANGE_ACE_RDLOCKED], | |
1542 | OPAL_UID_LENGTH); | |
1543 | ||
1544 | if (lkul->l_state == OPAL_RW) | |
1545 | memcpy(lr_buffer, opaluid[OPAL_LOCKINGRANGE_ACE_WRLOCKED], | |
1546 | OPAL_UID_LENGTH); | |
1547 | ||
1548 | lr_buffer[7] = lkul->session.opal_key.lr; | |
1549 | ||
1550 | memcpy(user_uid, opaluid[OPAL_USER1_UID], OPAL_UID_LENGTH); | |
1551 | ||
1552 | user_uid[7] = lkul->session.who; | |
1553 | ||
1554 | add_token_u8(&err, dev, OPAL_CALL); | |
1555 | add_token_bytestring(&err, dev, lr_buffer, OPAL_UID_LENGTH); | |
1556 | add_token_bytestring(&err, dev, opalmethod[OPAL_SET], | |
1557 | OPAL_UID_LENGTH); | |
1558 | ||
1559 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1560 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1561 | add_token_u8(&err, dev, OPAL_VALUES); | |
1562 | ||
1563 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1564 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1565 | add_token_u8(&err, dev, 3); | |
1566 | ||
1567 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1568 | ||
1569 | ||
1570 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1571 | add_token_bytestring(&err, dev, | |
1572 | opaluid[OPAL_HALF_UID_AUTHORITY_OBJ_REF], | |
1573 | OPAL_UID_LENGTH/2); | |
1574 | add_token_bytestring(&err, dev, user_uid, OPAL_UID_LENGTH); | |
1575 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1576 | ||
1577 | ||
1578 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1579 | add_token_bytestring(&err, dev, | |
1580 | opaluid[OPAL_HALF_UID_AUTHORITY_OBJ_REF], | |
1581 | OPAL_UID_LENGTH/2); | |
1582 | add_token_bytestring(&err, dev, user_uid, OPAL_UID_LENGTH); | |
1583 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1584 | ||
1585 | ||
1586 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1587 | add_token_bytestring(&err, dev, opaluid[OPAL_HALF_UID_BOOLEAN_ACE], | |
1588 | OPAL_UID_LENGTH/2); | |
1589 | add_token_u8(&err, dev, 1); | |
1590 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1591 | ||
1592 | ||
1593 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1594 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1595 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1596 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1597 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1598 | ||
1599 | if (err) { | |
1600 | pr_err("Error building add user to locking range command.\n"); | |
1601 | return err; | |
1602 | } | |
1603 | ||
1604 | return finalize_and_send(dev, parse_and_check_status); | |
1605 | } | |
1606 | ||
1607 | static int lock_unlock_locking_range(struct opal_dev *dev) | |
1608 | { | |
1609 | u8 lr_buffer[OPAL_UID_LENGTH]; | |
1610 | const u8 *method; | |
1611 | struct opal_lock_unlock *lkul; | |
1612 | u8 read_locked = 1, write_locked = 1; | |
1613 | int err = 0; | |
1614 | ||
1615 | clear_opal_cmd(dev); | |
1616 | set_comid(dev, dev->comid); | |
1617 | ||
1618 | method = opalmethod[OPAL_SET]; | |
1619 | lkul = dev->func_data[dev->state]; | |
1620 | if (build_locking_range(lr_buffer, sizeof(lr_buffer), | |
1621 | lkul->session.opal_key.lr) < 0) | |
1622 | return -ERANGE; | |
1623 | ||
1624 | switch (lkul->l_state) { | |
1625 | case OPAL_RO: | |
1626 | read_locked = 0; | |
1627 | write_locked = 1; | |
1628 | break; | |
1629 | case OPAL_RW: | |
1630 | read_locked = 0; | |
1631 | write_locked = 0; | |
1632 | break; | |
1633 | case OPAL_LK: | |
1634 | /* vars are initalized to locked */ | |
1635 | break; | |
1636 | default: | |
1637 | pr_err("Tried to set an invalid locking state... returning to uland\n"); | |
1638 | return OPAL_INVAL_PARAM; | |
1639 | } | |
1640 | ||
1641 | add_token_u8(&err, dev, OPAL_CALL); | |
1642 | add_token_bytestring(&err, dev, lr_buffer, OPAL_UID_LENGTH); | |
1643 | add_token_bytestring(&err, dev, opalmethod[OPAL_SET], OPAL_UID_LENGTH); | |
1644 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1645 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1646 | add_token_u8(&err, dev, OPAL_VALUES); | |
1647 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1648 | ||
1649 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1650 | add_token_u8(&err, dev, OPAL_READLOCKED); | |
1651 | add_token_u8(&err, dev, read_locked); | |
1652 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1653 | ||
1654 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1655 | add_token_u8(&err, dev, OPAL_WRITELOCKED); | |
1656 | add_token_u8(&err, dev, write_locked); | |
1657 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1658 | ||
1659 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1660 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1661 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1662 | ||
1663 | if (err) { | |
1664 | pr_err("Error building SET command.\n"); | |
1665 | return err; | |
1666 | } | |
1667 | return finalize_and_send(dev, parse_and_check_status); | |
1668 | } | |
1669 | ||
1670 | ||
1671 | static int lock_unlock_locking_range_sum(struct opal_dev *dev) | |
1672 | { | |
1673 | u8 lr_buffer[OPAL_UID_LENGTH]; | |
1674 | u8 read_locked = 1, write_locked = 1; | |
1675 | const u8 *method; | |
1676 | struct opal_lock_unlock *lkul; | |
1677 | int ret; | |
1678 | ||
1679 | clear_opal_cmd(dev); | |
1680 | set_comid(dev, dev->comid); | |
1681 | ||
1682 | method = opalmethod[OPAL_SET]; | |
1683 | lkul = dev->func_data[dev->state]; | |
1684 | if (build_locking_range(lr_buffer, sizeof(lr_buffer), | |
1685 | lkul->session.opal_key.lr) < 0) | |
1686 | return -ERANGE; | |
1687 | ||
1688 | switch (lkul->l_state) { | |
1689 | case OPAL_RO: | |
1690 | read_locked = 0; | |
1691 | write_locked = 1; | |
1692 | break; | |
1693 | case OPAL_RW: | |
1694 | read_locked = 0; | |
1695 | write_locked = 0; | |
1696 | break; | |
1697 | case OPAL_LK: | |
1698 | /* vars are initalized to locked */ | |
1699 | break; | |
1700 | default: | |
1701 | pr_err("Tried to set an invalid locking state.\n"); | |
1702 | return OPAL_INVAL_PARAM; | |
1703 | } | |
1704 | ret = generic_lr_enable_disable(dev, lr_buffer, 1, 1, | |
1705 | read_locked, write_locked); | |
1706 | ||
1707 | if (ret < 0) { | |
1708 | pr_err("Error building SET command.\n"); | |
1709 | return ret; | |
1710 | } | |
1711 | return finalize_and_send(dev, parse_and_check_status); | |
1712 | } | |
1713 | ||
1714 | static int activate_lsp(struct opal_dev *dev) | |
1715 | { | |
1716 | struct opal_lr_act *opal_act; | |
1717 | u8 user_lr[OPAL_UID_LENGTH]; | |
1718 | u8 uint_3 = 0x83; | |
1719 | int err = 0, i; | |
1720 | ||
1721 | clear_opal_cmd(dev); | |
1722 | set_comid(dev, dev->comid); | |
1723 | ||
1724 | opal_act = dev->func_data[dev->state]; | |
1725 | ||
1726 | add_token_u8(&err, dev, OPAL_CALL); | |
1727 | add_token_bytestring(&err, dev, opaluid[OPAL_LOCKINGSP_UID], | |
1728 | OPAL_UID_LENGTH); | |
1729 | add_token_bytestring(&err, dev, opalmethod[OPAL_ACTIVATE], | |
1730 | OPAL_UID_LENGTH); | |
1731 | ||
1732 | ||
1733 | if (opal_act->sum) { | |
1734 | err = build_locking_range(user_lr, sizeof(user_lr), | |
1735 | opal_act->lr[0]); | |
1736 | if (err) | |
1737 | return err; | |
1738 | ||
1739 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1740 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1741 | add_token_u8(&err, dev, uint_3); | |
1742 | add_token_u8(&err, dev, 6); | |
1743 | add_token_u8(&err, dev, 0); | |
1744 | add_token_u8(&err, dev, 0); | |
1745 | ||
1746 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1747 | add_token_bytestring(&err, dev, user_lr, OPAL_UID_LENGTH); | |
1748 | for (i = 1; i < opal_act->num_lrs; i++) { | |
1749 | user_lr[7] = opal_act->lr[i]; | |
1750 | add_token_bytestring(&err, dev, user_lr, OPAL_UID_LENGTH); | |
1751 | } | |
1752 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1753 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1754 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1755 | ||
1756 | } else { | |
1757 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1758 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1759 | } | |
1760 | ||
1761 | if (err) { | |
1762 | pr_err("Error building Activate LockingSP command.\n"); | |
1763 | return err; | |
1764 | } | |
1765 | ||
1766 | return finalize_and_send(dev, parse_and_check_status); | |
1767 | } | |
1768 | ||
1769 | static int get_lsp_lifecycle_cont(struct opal_dev *dev) | |
1770 | { | |
1771 | u8 lc_status; | |
1772 | int error = 0; | |
1773 | ||
1774 | error = parse_and_check_status(dev); | |
1775 | if (error) | |
1776 | return error; | |
1777 | ||
1778 | lc_status = response_get_u64(&dev->parsed, 4); | |
1779 | /* 0x08 is Manufacured Inactive */ | |
1780 | /* 0x09 is Manufactured */ | |
1781 | if (lc_status != OPAL_MANUFACTURED_INACTIVE) { | |
1782 | pr_err("Couldn't determine the status of the Lifcycle state\n"); | |
1783 | return -ENODEV; | |
1784 | } | |
1785 | ||
1786 | return 0; | |
1787 | } | |
1788 | ||
1789 | /* Determine if we're in the Manufactured Inactive or Active state */ | |
1790 | static int get_lsp_lifecycle(struct opal_dev *dev) | |
1791 | { | |
1792 | int err = 0; | |
1793 | ||
1794 | clear_opal_cmd(dev); | |
1795 | set_comid(dev, dev->comid); | |
1796 | ||
1797 | add_token_u8(&err, dev, OPAL_CALL); | |
1798 | add_token_bytestring(&err, dev, opaluid[OPAL_LOCKINGSP_UID], | |
1799 | OPAL_UID_LENGTH); | |
1800 | add_token_bytestring(&err, dev, opalmethod[OPAL_GET], OPAL_UID_LENGTH); | |
1801 | ||
1802 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1803 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1804 | ||
1805 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1806 | add_token_u8(&err, dev, 3); /* Start Column */ | |
1807 | add_token_u8(&err, dev, 6); /* Lifecycle Column */ | |
1808 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1809 | ||
1810 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1811 | add_token_u8(&err, dev, 4); /* End Column */ | |
1812 | add_token_u8(&err, dev, 6); /* Lifecycle Column */ | |
1813 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1814 | ||
1815 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1816 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1817 | ||
1818 | if (err) { | |
1819 | pr_err("Error Building GET Lifecycle Status command\n"); | |
1820 | return err; | |
1821 | } | |
1822 | ||
1823 | return finalize_and_send(dev, get_lsp_lifecycle_cont); | |
1824 | } | |
1825 | ||
1826 | static int get_msid_cpin_pin_cont(struct opal_dev *dev) | |
1827 | { | |
1828 | const char *msid_pin; | |
1829 | size_t strlen; | |
1830 | int error = 0; | |
1831 | ||
1832 | error = parse_and_check_status(dev); | |
1833 | if (error) | |
1834 | return error; | |
1835 | ||
1836 | strlen = response_get_string(&dev->parsed, 4, &msid_pin); | |
1837 | if (!msid_pin) { | |
1838 | pr_err("%s: Couldn't extract PIN from response\n", __func__); | |
1839 | return OPAL_INVAL_PARAM; | |
1840 | } | |
1841 | ||
1842 | dev->prev_data = kmemdup(msid_pin, strlen, GFP_KERNEL); | |
1843 | if (!dev->prev_data) | |
1844 | return -ENOMEM; | |
1845 | ||
1846 | dev->prev_d_len = strlen; | |
1847 | ||
1848 | return 0; | |
1849 | } | |
1850 | ||
1851 | static int get_msid_cpin_pin(struct opal_dev *dev) | |
1852 | { | |
1853 | int err = 0; | |
1854 | ||
1855 | clear_opal_cmd(dev); | |
1856 | set_comid(dev, dev->comid); | |
1857 | ||
1858 | ||
1859 | add_token_u8(&err, dev, OPAL_CALL); | |
1860 | add_token_bytestring(&err, dev, opaluid[OPAL_C_PIN_MSID], | |
1861 | OPAL_UID_LENGTH); | |
1862 | add_token_bytestring(&err, dev, opalmethod[OPAL_GET], OPAL_UID_LENGTH); | |
1863 | ||
1864 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1865 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1866 | ||
1867 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1868 | add_token_u8(&err, dev, 3); /* Start Column */ | |
1869 | add_token_u8(&err, dev, 3); /* PIN */ | |
1870 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1871 | ||
1872 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1873 | add_token_u8(&err, dev, 4); /* End Column */ | |
1874 | add_token_u8(&err, dev, 3); /* Lifecycle Column */ | |
1875 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1876 | ||
1877 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1878 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1879 | ||
1880 | if (err) { | |
1881 | pr_err("Error building Get MSID CPIN PIN command.\n"); | |
1882 | return err; | |
1883 | } | |
1884 | ||
1885 | return finalize_and_send(dev, get_msid_cpin_pin_cont); | |
1886 | } | |
1887 | ||
1888 | static int build_end_opal_session(struct opal_dev *dev) | |
1889 | { | |
1890 | int err = 0; | |
1891 | ||
1892 | clear_opal_cmd(dev); | |
1893 | ||
1894 | set_comid(dev, dev->comid); | |
1895 | add_token_u8(&err, dev, OPAL_ENDOFSESSION); | |
1896 | return err; | |
1897 | } | |
1898 | ||
1899 | static int end_opal_session(struct opal_dev *dev) | |
1900 | { | |
1901 | int ret = build_end_opal_session(dev); | |
1902 | ||
1903 | if (ret < 0) | |
1904 | return ret; | |
1905 | return finalize_and_send(dev, end_session_cont); | |
1906 | } | |
1907 | ||
1908 | static int end_opal_session_error(struct opal_dev *dev) | |
1909 | { | |
1910 | const opal_step error_end_session[] = { | |
1911 | end_opal_session, | |
1912 | NULL, | |
1913 | }; | |
1914 | dev->funcs = error_end_session; | |
1915 | dev->state = 0; | |
1916 | return next(dev); | |
1917 | } | |
1918 | ||
1919 | static inline void setup_opal_dev(struct opal_dev *dev, | |
1920 | const opal_step *funcs) | |
1921 | { | |
1922 | dev->state = 0; | |
1923 | dev->funcs = funcs; | |
1924 | dev->tsn = 0; | |
1925 | dev->hsn = 0; | |
1926 | dev->func_data = NULL; | |
1927 | dev->prev_data = NULL; | |
1928 | } | |
1929 | ||
1930 | static int check_opal_support(struct opal_dev *dev) | |
1931 | { | |
1932 | static const opal_step funcs[] = { | |
1933 | opal_discovery0, | |
1934 | NULL | |
1935 | }; | |
1936 | int ret; | |
1937 | ||
1938 | mutex_lock(&dev->dev_lock); | |
1939 | setup_opal_dev(dev, funcs); | |
1940 | ret = next(dev); | |
1941 | dev->supported = !ret; | |
1942 | mutex_unlock(&dev->dev_lock); | |
1943 | return ret; | |
1944 | } | |
1945 | ||
1946 | void init_opal_dev(struct opal_dev *opal_dev, sec_send_recv *send_recv) | |
1947 | { | |
1948 | if (opal_dev->initialized) | |
1949 | return; | |
1950 | INIT_LIST_HEAD(&opal_dev->unlk_lst); | |
1951 | mutex_init(&opal_dev->dev_lock); | |
1952 | opal_dev->send_recv = send_recv; | |
1953 | if (check_opal_support(opal_dev) < 0) | |
1954 | pr_warn("Opal is not supported on this device\n"); | |
1955 | opal_dev->initialized = true; | |
1956 | } | |
1957 | EXPORT_SYMBOL(init_opal_dev); | |
1958 | ||
1959 | static int opal_secure_erase_locking_range(struct opal_dev *dev, | |
1960 | struct opal_session_info *opal_session) | |
1961 | { | |
1962 | void *data[3] = { NULL }; | |
1963 | static const opal_step erase_funcs[] = { | |
1964 | opal_discovery0, | |
1965 | start_auth_opal_session, | |
1966 | get_active_key, | |
1967 | gen_key, | |
1968 | end_opal_session, | |
1969 | NULL, | |
1970 | }; | |
1971 | int ret; | |
1972 | ||
1973 | mutex_lock(&dev->dev_lock); | |
1974 | setup_opal_dev(dev, erase_funcs); | |
1975 | ||
1976 | dev->func_data = data; | |
1977 | dev->func_data[1] = opal_session; | |
1978 | dev->func_data[2] = &opal_session->opal_key.lr; | |
1979 | ||
1980 | ret = next(dev); | |
1981 | mutex_unlock(&dev->dev_lock); | |
1982 | return ret; | |
1983 | } | |
1984 | ||
1985 | static int opal_erase_locking_range(struct opal_dev *dev, | |
1986 | struct opal_session_info *opal_session) | |
1987 | { | |
1988 | void *data[3] = { NULL }; | |
1989 | static const opal_step erase_funcs[] = { | |
1990 | opal_discovery0, | |
1991 | start_auth_opal_session, | |
1992 | erase_locking_range, | |
1993 | end_opal_session, | |
1994 | NULL, | |
1995 | }; | |
1996 | int ret; | |
1997 | ||
1998 | mutex_lock(&dev->dev_lock); | |
1999 | setup_opal_dev(dev, erase_funcs); | |
2000 | ||
2001 | dev->func_data = data; | |
2002 | dev->func_data[1] = opal_session; | |
2003 | dev->func_data[2] = opal_session; | |
2004 | ||
2005 | ret = next(dev); | |
2006 | mutex_unlock(&dev->dev_lock); | |
2007 | return ret; | |
2008 | } | |
2009 | ||
2010 | static int opal_enable_disable_shadow_mbr(struct opal_dev *dev, | |
2011 | struct opal_mbr_data *opal_mbr) | |
2012 | { | |
2013 | void *func_data[6] = { NULL }; | |
2014 | static const opal_step mbr_funcs[] = { | |
2015 | opal_discovery0, | |
2016 | start_admin1LSP_opal_session, | |
2017 | set_mbr_done, | |
2018 | end_opal_session, | |
2019 | start_admin1LSP_opal_session, | |
2020 | set_mbr_enable_disable, | |
2021 | end_opal_session, | |
2022 | NULL, | |
2023 | }; | |
2024 | int ret; | |
2025 | ||
2026 | if (opal_mbr->enable_disable != OPAL_MBR_ENABLE && | |
2027 | opal_mbr->enable_disable != OPAL_MBR_DISABLE) | |
2028 | return -EINVAL; | |
2029 | ||
2030 | mutex_lock(&dev->dev_lock); | |
2031 | setup_opal_dev(dev, mbr_funcs); | |
2032 | dev->func_data = func_data; | |
2033 | dev->func_data[1] = &opal_mbr->key; | |
2034 | dev->func_data[2] = &opal_mbr->enable_disable; | |
2035 | dev->func_data[4] = &opal_mbr->key; | |
2036 | dev->func_data[5] = &opal_mbr->enable_disable; | |
2037 | ret = next(dev); | |
2038 | mutex_unlock(&dev->dev_lock); | |
2039 | return ret; | |
2040 | } | |
2041 | ||
2042 | static int opal_save(struct opal_dev *dev, struct opal_lock_unlock *lk_unlk) | |
2043 | { | |
2044 | struct opal_suspend_data *suspend; | |
2045 | ||
2046 | suspend = kzalloc(sizeof(*suspend), GFP_KERNEL); | |
2047 | if (!suspend) | |
2048 | return -ENOMEM; | |
2049 | ||
2050 | suspend->unlk = *lk_unlk; | |
2051 | suspend->lr = lk_unlk->session.opal_key.lr; | |
2052 | ||
2053 | mutex_lock(&dev->dev_lock); | |
2054 | setup_opal_dev(dev, NULL); | |
2055 | add_suspend_info(dev, suspend); | |
2056 | mutex_unlock(&dev->dev_lock); | |
2057 | return 0; | |
2058 | } | |
2059 | ||
2060 | static int opal_add_user_to_lr(struct opal_dev *dev, | |
2061 | struct opal_lock_unlock *lk_unlk) | |
2062 | { | |
2063 | void *func_data[3] = { NULL }; | |
2064 | static const opal_step funcs[] = { | |
2065 | opal_discovery0, | |
2066 | start_admin1LSP_opal_session, | |
2067 | add_user_to_lr, | |
2068 | end_opal_session, | |
2069 | NULL | |
2070 | }; | |
2071 | int ret; | |
2072 | ||
2073 | if (lk_unlk->l_state != OPAL_RO && | |
2074 | lk_unlk->l_state != OPAL_RW) { | |
2075 | pr_err("Locking state was not RO or RW\n"); | |
2076 | return -EINVAL; | |
2077 | } | |
2078 | if (lk_unlk->session.who < OPAL_USER1 && | |
2079 | lk_unlk->session.who > OPAL_USER9) { | |
2080 | pr_err("Authority was not within the range of users: %d\n", | |
2081 | lk_unlk->session.who); | |
2082 | return -EINVAL; | |
2083 | } | |
2084 | if (lk_unlk->session.sum) { | |
2085 | pr_err("%s not supported in sum. Use setup locking range\n", | |
2086 | __func__); | |
2087 | return -EINVAL; | |
2088 | } | |
2089 | ||
2090 | mutex_lock(&dev->dev_lock); | |
2091 | setup_opal_dev(dev, funcs); | |
2092 | dev->func_data = func_data; | |
2093 | dev->func_data[1] = &lk_unlk->session.opal_key; | |
2094 | dev->func_data[2] = lk_unlk; | |
2095 | ret = next(dev); | |
2096 | mutex_unlock(&dev->dev_lock); | |
2097 | return ret; | |
2098 | } | |
2099 | ||
2100 | static int opal_reverttper(struct opal_dev *dev, struct opal_key *opal) | |
2101 | { | |
2102 | void *data[2] = { NULL }; | |
2103 | static const opal_step revert_funcs[] = { | |
2104 | opal_discovery0, | |
2105 | start_SIDASP_opal_session, | |
2106 | revert_tper, /* controller will terminate session */ | |
2107 | NULL, | |
2108 | }; | |
2109 | int ret; | |
2110 | ||
2111 | mutex_lock(&dev->dev_lock); | |
2112 | setup_opal_dev(dev, revert_funcs); | |
2113 | dev->func_data = data; | |
2114 | dev->func_data[1] = opal; | |
2115 | ret = next(dev); | |
2116 | mutex_unlock(&dev->dev_lock); | |
2117 | return ret; | |
2118 | } | |
2119 | ||
2120 | static int __opal_lock_unlock_sum(struct opal_dev *dev) | |
2121 | { | |
2122 | static const opal_step ulk_funcs_sum[] = { | |
2123 | opal_discovery0, | |
2124 | start_auth_opal_session, | |
2125 | lock_unlock_locking_range_sum, | |
2126 | end_opal_session, | |
2127 | NULL | |
2128 | }; | |
2129 | ||
2130 | dev->funcs = ulk_funcs_sum; | |
2131 | return next(dev); | |
2132 | } | |
2133 | ||
2134 | static int __opal_lock_unlock(struct opal_dev *dev) | |
2135 | { | |
2136 | static const opal_step _unlock_funcs[] = { | |
2137 | opal_discovery0, | |
2138 | start_auth_opal_session, | |
2139 | lock_unlock_locking_range, | |
2140 | end_opal_session, | |
2141 | NULL | |
2142 | }; | |
2143 | ||
2144 | dev->funcs = _unlock_funcs; | |
2145 | return next(dev); | |
2146 | } | |
2147 | ||
2148 | static int opal_lock_unlock(struct opal_dev *dev, struct opal_lock_unlock *lk_unlk) | |
2149 | { | |
2150 | void *func_data[3] = { NULL }; | |
2151 | int ret; | |
2152 | ||
2153 | if (lk_unlk->session.who < OPAL_ADMIN1 || | |
2154 | lk_unlk->session.who > OPAL_USER9) | |
2155 | return -EINVAL; | |
2156 | ||
2157 | mutex_lock(&dev->dev_lock); | |
2158 | setup_opal_dev(dev, NULL); | |
2159 | dev->func_data = func_data; | |
2160 | dev->func_data[1] = &lk_unlk->session; | |
2161 | dev->func_data[2] = lk_unlk; | |
2162 | ||
2163 | if (lk_unlk->session.sum) | |
2164 | ret = __opal_lock_unlock_sum(dev); | |
2165 | else | |
2166 | ret = __opal_lock_unlock(dev); | |
2167 | ||
2168 | mutex_unlock(&dev->dev_lock); | |
2169 | return ret; | |
2170 | } | |
2171 | ||
2172 | static int opal_take_ownership(struct opal_dev *dev, struct opal_key *opal) | |
2173 | { | |
2174 | static const opal_step owner_funcs[] = { | |
2175 | opal_discovery0, | |
2176 | start_anybodyASP_opal_session, | |
2177 | get_msid_cpin_pin, | |
2178 | end_opal_session, | |
2179 | start_SIDASP_opal_session, | |
2180 | set_sid_cpin_pin, | |
2181 | end_opal_session, | |
2182 | NULL | |
2183 | }; | |
2184 | void *data[6] = { NULL }; | |
2185 | int ret; | |
2186 | ||
2187 | if (!dev) | |
2188 | return -ENODEV; | |
2189 | ||
2190 | mutex_lock(&dev->dev_lock); | |
2191 | setup_opal_dev(dev, owner_funcs); | |
2192 | dev->func_data = data; | |
2193 | dev->func_data[4] = opal; | |
2194 | dev->func_data[5] = opal; | |
2195 | ret = next(dev); | |
2196 | mutex_unlock(&dev->dev_lock); | |
2197 | return ret; | |
2198 | } | |
2199 | ||
2200 | static int opal_activate_lsp(struct opal_dev *dev, struct opal_lr_act *opal_lr_act) | |
2201 | { | |
2202 | void *data[4] = { NULL }; | |
2203 | static const opal_step active_funcs[] = { | |
2204 | opal_discovery0, | |
2205 | start_SIDASP_opal_session, /* Open session as SID auth */ | |
2206 | get_lsp_lifecycle, | |
2207 | activate_lsp, | |
2208 | end_opal_session, | |
2209 | NULL | |
2210 | }; | |
2211 | int ret; | |
2212 | ||
2213 | if (!opal_lr_act->num_lrs || opal_lr_act->num_lrs > OPAL_MAX_LRS) | |
2214 | return -EINVAL; | |
2215 | ||
2216 | mutex_lock(&dev->dev_lock); | |
2217 | setup_opal_dev(dev, active_funcs); | |
2218 | dev->func_data = data; | |
2219 | dev->func_data[1] = &opal_lr_act->key; | |
2220 | dev->func_data[3] = opal_lr_act; | |
2221 | ret = next(dev); | |
2222 | mutex_unlock(&dev->dev_lock); | |
2223 | return ret; | |
2224 | } | |
2225 | ||
2226 | static int opal_setup_locking_range(struct opal_dev *dev, | |
2227 | struct opal_user_lr_setup *opal_lrs) | |
2228 | { | |
2229 | void *data[3] = { NULL }; | |
2230 | static const opal_step lr_funcs[] = { | |
2231 | opal_discovery0, | |
2232 | start_auth_opal_session, | |
2233 | setup_locking_range, | |
2234 | end_opal_session, | |
2235 | NULL, | |
2236 | }; | |
2237 | int ret; | |
2238 | ||
2239 | mutex_lock(&dev->dev_lock); | |
2240 | setup_opal_dev(dev, lr_funcs); | |
2241 | dev->func_data = data; | |
2242 | dev->func_data[1] = &opal_lrs->session; | |
2243 | dev->func_data[2] = opal_lrs; | |
2244 | ret = next(dev); | |
2245 | mutex_unlock(&dev->dev_lock); | |
2246 | return ret; | |
2247 | } | |
2248 | ||
2249 | static int opal_set_new_pw(struct opal_dev *dev, struct opal_new_pw *opal_pw) | |
2250 | { | |
2251 | static const opal_step pw_funcs[] = { | |
2252 | opal_discovery0, | |
2253 | start_auth_opal_session, | |
2254 | set_new_pw, | |
2255 | end_opal_session, | |
2256 | NULL | |
2257 | }; | |
2258 | void *data[3] = { NULL }; | |
2259 | int ret; | |
2260 | ||
2261 | if (opal_pw->session.who < OPAL_ADMIN1 || | |
2262 | opal_pw->session.who > OPAL_USER9 || | |
2263 | opal_pw->new_user_pw.who < OPAL_ADMIN1 || | |
2264 | opal_pw->new_user_pw.who > OPAL_USER9) | |
2265 | return -EINVAL; | |
2266 | ||
2267 | mutex_lock(&dev->dev_lock); | |
2268 | setup_opal_dev(dev, pw_funcs); | |
2269 | dev->func_data = data; | |
2270 | dev->func_data[1] = (void *) &opal_pw->session; | |
2271 | dev->func_data[2] = (void *) &opal_pw->new_user_pw; | |
2272 | ||
2273 | ret = next(dev); | |
2274 | mutex_unlock(&dev->dev_lock); | |
2275 | return ret; | |
2276 | } | |
2277 | ||
2278 | static int opal_activate_user(struct opal_dev *dev, | |
2279 | struct opal_session_info *opal_session) | |
2280 | { | |
2281 | static const opal_step act_funcs[] = { | |
2282 | opal_discovery0, | |
2283 | start_admin1LSP_opal_session, | |
2284 | internal_activate_user, | |
2285 | end_opal_session, | |
2286 | NULL | |
2287 | }; | |
2288 | void *data[3] = { NULL }; | |
2289 | int ret; | |
2290 | ||
2291 | /* We can't activate Admin1 it's active as manufactured */ | |
2292 | if (opal_session->who < OPAL_USER1 && | |
2293 | opal_session->who > OPAL_USER9) { | |
2294 | pr_err("Who was not a valid user: %d\n", opal_session->who); | |
2295 | return -EINVAL; | |
2296 | } | |
2297 | ||
2298 | mutex_lock(&dev->dev_lock); | |
2299 | setup_opal_dev(dev, act_funcs); | |
2300 | dev->func_data = data; | |
2301 | dev->func_data[1] = &opal_session->opal_key; | |
2302 | dev->func_data[2] = opal_session; | |
2303 | ret = next(dev); | |
2304 | mutex_unlock(&dev->dev_lock); | |
2305 | return ret; | |
2306 | } | |
2307 | ||
2308 | bool opal_unlock_from_suspend(struct opal_dev *dev) | |
2309 | { | |
2310 | struct opal_suspend_data *suspend; | |
2311 | void *func_data[3] = { NULL }; | |
2312 | bool was_failure = false; | |
2313 | int ret = 0; | |
2314 | ||
2315 | if (!dev) | |
2316 | return false; | |
2317 | if (!dev->supported) | |
2318 | return false; | |
2319 | ||
2320 | mutex_lock(&dev->dev_lock); | |
2321 | setup_opal_dev(dev, NULL); | |
2322 | dev->func_data = func_data; | |
2323 | ||
2324 | list_for_each_entry(suspend, &dev->unlk_lst, node) { | |
2325 | dev->state = 0; | |
2326 | dev->func_data[1] = &suspend->unlk.session; | |
2327 | dev->func_data[2] = &suspend->unlk; | |
2328 | dev->tsn = 0; | |
2329 | dev->hsn = 0; | |
2330 | ||
2331 | if (suspend->unlk.session.sum) | |
2332 | ret = __opal_lock_unlock_sum(dev); | |
2333 | else | |
2334 | ret = __opal_lock_unlock(dev); | |
2335 | if (ret) { | |
2336 | pr_warn("Failed to unlock LR %hhu with sum %d\n", | |
2337 | suspend->unlk.session.opal_key.lr, | |
2338 | suspend->unlk.session.sum); | |
2339 | was_failure = true; | |
2340 | } | |
2341 | } | |
2342 | mutex_unlock(&dev->dev_lock); | |
2343 | return was_failure; | |
2344 | } | |
2345 | EXPORT_SYMBOL(opal_unlock_from_suspend); | |
2346 | ||
2347 | int sed_ioctl(struct opal_dev *dev, unsigned int cmd, unsigned long ptr) | |
2348 | { | |
2349 | void __user *arg = (void __user *)ptr; | |
2350 | ||
2351 | if (!capable(CAP_SYS_ADMIN)) | |
2352 | return -EACCES; | |
2353 | if (!dev->supported) { | |
2354 | pr_err("Not supported\n"); | |
2355 | return -ENOTSUPP; | |
2356 | } | |
2357 | ||
2358 | switch (cmd) { | |
2359 | case IOC_OPAL_SAVE: { | |
2360 | struct opal_lock_unlock lk_unlk; | |
2361 | ||
2362 | if (copy_from_user(&lk_unlk, arg, sizeof(lk_unlk))) | |
2363 | return -EFAULT; | |
2364 | return opal_save(dev, &lk_unlk); | |
2365 | } | |
2366 | case IOC_OPAL_LOCK_UNLOCK: { | |
2367 | struct opal_lock_unlock lk_unlk; | |
2368 | ||
2369 | if (copy_from_user(&lk_unlk, arg, sizeof(lk_unlk))) | |
2370 | return -EFAULT; | |
2371 | return opal_lock_unlock(dev, &lk_unlk); | |
2372 | } | |
2373 | case IOC_OPAL_TAKE_OWNERSHIP: { | |
2374 | struct opal_key opal_key; | |
2375 | ||
2376 | if (copy_from_user(&opal_key, arg, sizeof(opal_key))) | |
2377 | return -EFAULT; | |
2378 | return opal_take_ownership(dev, &opal_key); | |
2379 | } | |
2380 | case IOC_OPAL_ACTIVATE_LSP: { | |
2381 | struct opal_lr_act opal_lr_act; | |
2382 | ||
2383 | if (copy_from_user(&opal_lr_act, arg, sizeof(opal_lr_act))) | |
2384 | return -EFAULT; | |
2385 | return opal_activate_lsp(dev, &opal_lr_act); | |
2386 | } | |
2387 | case IOC_OPAL_SET_PW: { | |
2388 | struct opal_new_pw opal_pw; | |
2389 | ||
2390 | if (copy_from_user(&opal_pw, arg, sizeof(opal_pw))) | |
2391 | return -EFAULT; | |
2392 | return opal_set_new_pw(dev, &opal_pw); | |
2393 | } | |
2394 | case IOC_OPAL_ACTIVATE_USR: { | |
2395 | struct opal_session_info session; | |
2396 | ||
2397 | if (copy_from_user(&session, arg, sizeof(session))) | |
2398 | return -EFAULT; | |
2399 | return opal_activate_user(dev, &session); | |
2400 | } | |
2401 | case IOC_OPAL_REVERT_TPR: { | |
2402 | struct opal_key opal_key; | |
2403 | ||
2404 | if (copy_from_user(&opal_key, arg, sizeof(opal_key))) | |
2405 | return -EFAULT; | |
2406 | return opal_reverttper(dev, &opal_key); | |
2407 | } | |
2408 | case IOC_OPAL_LR_SETUP: { | |
2409 | struct opal_user_lr_setup lrs; | |
2410 | ||
2411 | if (copy_from_user(&lrs, arg, sizeof(lrs))) | |
2412 | return -EFAULT; | |
2413 | return opal_setup_locking_range(dev, &lrs); | |
2414 | } | |
2415 | case IOC_OPAL_ADD_USR_TO_LR: { | |
2416 | struct opal_lock_unlock lk_unlk; | |
2417 | ||
2418 | if (copy_from_user(&lk_unlk, arg, sizeof(lk_unlk))) | |
2419 | return -EFAULT; | |
2420 | return opal_add_user_to_lr(dev, &lk_unlk); | |
2421 | } | |
2422 | case IOC_OPAL_ENABLE_DISABLE_MBR: { | |
2423 | struct opal_mbr_data mbr; | |
2424 | ||
2425 | if (copy_from_user(&mbr, arg, sizeof(mbr))) | |
2426 | return -EFAULT; | |
2427 | return opal_enable_disable_shadow_mbr(dev, &mbr); | |
2428 | } | |
2429 | case IOC_OPAL_ERASE_LR: { | |
2430 | struct opal_session_info session; | |
2431 | ||
2432 | if (copy_from_user(&session, arg, sizeof(session))) | |
2433 | return -EFAULT; | |
2434 | return opal_erase_locking_range(dev, &session); | |
2435 | } | |
2436 | case IOC_OPAL_SECURE_ERASE_LR: { | |
2437 | struct opal_session_info session; | |
2438 | ||
2439 | if (copy_from_user(&session, arg, sizeof(session))) | |
2440 | return -EFAULT; | |
2441 | return opal_secure_erase_locking_range(dev, &session); | |
2442 | } | |
2443 | default: | |
2444 | pr_warn("No such Opal Ioctl %u\n", cmd); | |
2445 | } | |
2446 | return -ENOTTY; | |
2447 | } | |
2448 | EXPORT_SYMBOL_GPL(sed_ioctl); |