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8c16567d | 1 | // SPDX-License-Identifier: GPL-2.0 |
455a7b23 SB |
2 | /* |
3 | * Copyright © 2016 Intel Corporation | |
4 | * | |
5 | * Authors: | |
6 | * Scott Bauer <scott.bauer@intel.com> | |
7 | * Rafael Antognolli <rafael.antognolli@intel.com> | |
455a7b23 SB |
8 | */ |
9 | ||
10 | #define pr_fmt(fmt) KBUILD_MODNAME ":OPAL: " fmt | |
11 | ||
12 | #include <linux/delay.h> | |
13 | #include <linux/device.h> | |
14 | #include <linux/kernel.h> | |
15 | #include <linux/list.h> | |
322cbb50 | 16 | #include <linux/blkdev.h> |
455a7b23 SB |
17 | #include <linux/slab.h> |
18 | #include <linux/uaccess.h> | |
19 | #include <uapi/linux/sed-opal.h> | |
20 | #include <linux/sed-opal.h> | |
21 | #include <linux/string.h> | |
22 | #include <linux/kdev_t.h> | |
23 | ||
24 | #include "opal_proto.h" | |
25 | ||
4f1244c8 CH |
26 | #define IO_BUFFER_LENGTH 2048 |
27 | #define MAX_TOKS 64 | |
28 | ||
a9b25b4c JR |
29 | /* Number of bytes needed by cmd_finalize. */ |
30 | #define CMD_FINALIZE_BYTES_NEEDED 7 | |
31 | ||
eed64951 JD |
32 | struct opal_step { |
33 | int (*fn)(struct opal_dev *dev, void *data); | |
34 | void *data; | |
35 | }; | |
36 | typedef int (cont_fn)(struct opal_dev *dev); | |
4f1244c8 CH |
37 | |
38 | enum opal_atom_width { | |
39 | OPAL_WIDTH_TINY, | |
40 | OPAL_WIDTH_SHORT, | |
41 | OPAL_WIDTH_MEDIUM, | |
42 | OPAL_WIDTH_LONG, | |
43 | OPAL_WIDTH_TOKEN | |
44 | }; | |
45 | ||
46 | /* | |
47 | * On the parsed response, we don't store again the toks that are already | |
48 | * stored in the response buffer. Instead, for each token, we just store a | |
49 | * pointer to the position in the buffer where the token starts, and the size | |
50 | * of the token in bytes. | |
51 | */ | |
52 | struct opal_resp_tok { | |
53 | const u8 *pos; | |
54 | size_t len; | |
55 | enum opal_response_token type; | |
56 | enum opal_atom_width width; | |
57 | union { | |
58 | u64 u; | |
59 | s64 s; | |
60 | } stored; | |
61 | }; | |
62 | ||
63 | /* | |
64 | * From the response header it's not possible to know how many tokens there are | |
65 | * on the payload. So we hardcode that the maximum will be MAX_TOKS, and later | |
66 | * if we start dealing with messages that have more than that, we can increase | |
67 | * this number. This is done to avoid having to make two passes through the | |
68 | * response, the first one counting how many tokens we have and the second one | |
69 | * actually storing the positions. | |
70 | */ | |
71 | struct parsed_resp { | |
72 | int num; | |
73 | struct opal_resp_tok toks[MAX_TOKS]; | |
74 | }; | |
75 | ||
76 | struct opal_dev { | |
c6ea7060 | 77 | u32 flags; |
4f1244c8 CH |
78 | |
79 | void *data; | |
80 | sec_send_recv *send_recv; | |
81 | ||
4f1244c8 CH |
82 | struct mutex dev_lock; |
83 | u16 comid; | |
84 | u32 hsn; | |
85 | u32 tsn; | |
9e05a259 | 86 | u64 align; /* alignment granularity */ |
4f1244c8 | 87 | u64 lowest_lba; |
9e05a259 OK |
88 | u32 logical_block_size; |
89 | u8 align_required; /* ALIGN: 0 or 1 */ | |
4f1244c8 CH |
90 | |
91 | size_t pos; | |
f829230d SS |
92 | u8 *cmd; |
93 | u8 *resp; | |
4f1244c8 CH |
94 | |
95 | struct parsed_resp parsed; | |
96 | size_t prev_d_len; | |
97 | void *prev_data; | |
98 | ||
99 | struct list_head unlk_lst; | |
100 | }; | |
101 | ||
102 | ||
455a7b23 SB |
103 | static const u8 opaluid[][OPAL_UID_LENGTH] = { |
104 | /* users */ | |
105 | [OPAL_SMUID_UID] = | |
106 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff }, | |
107 | [OPAL_THISSP_UID] = | |
108 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, | |
109 | [OPAL_ADMINSP_UID] = | |
110 | { 0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x01 }, | |
111 | [OPAL_LOCKINGSP_UID] = | |
112 | { 0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x02 }, | |
113 | [OPAL_ENTERPRISE_LOCKINGSP_UID] = | |
114 | { 0x00, 0x00, 0x02, 0x05, 0x00, 0x01, 0x00, 0x01 }, | |
115 | [OPAL_ANYBODY_UID] = | |
116 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x01 }, | |
117 | [OPAL_SID_UID] = | |
118 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x06 }, | |
119 | [OPAL_ADMIN1_UID] = | |
120 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0x00, 0x01 }, | |
121 | [OPAL_USER1_UID] = | |
122 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x03, 0x00, 0x01 }, | |
123 | [OPAL_USER2_UID] = | |
124 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x03, 0x00, 0x02 }, | |
125 | [OPAL_PSID_UID] = | |
126 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0xff, 0x01 }, | |
127 | [OPAL_ENTERPRISE_BANDMASTER0_UID] = | |
128 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x80, 0x01 }, | |
129 | [OPAL_ENTERPRISE_ERASEMASTER_UID] = | |
130 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x84, 0x01 }, | |
131 | ||
132 | /* tables */ | |
dc301025 | 133 | [OPAL_TABLE_TABLE] = |
ff91064e | 134 | { 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01 }, |
455a7b23 SB |
135 | [OPAL_LOCKINGRANGE_GLOBAL] = |
136 | { 0x00, 0x00, 0x08, 0x02, 0x00, 0x00, 0x00, 0x01 }, | |
8be19a02 OK |
137 | [OPAL_LOCKINGRANGE_ACE_START_TO_KEY] = |
138 | { 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xD0, 0x01 }, | |
455a7b23 SB |
139 | [OPAL_LOCKINGRANGE_ACE_RDLOCKED] = |
140 | { 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xE0, 0x01 }, | |
141 | [OPAL_LOCKINGRANGE_ACE_WRLOCKED] = | |
142 | { 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xE8, 0x01 }, | |
143 | [OPAL_MBRCONTROL] = | |
144 | { 0x00, 0x00, 0x08, 0x03, 0x00, 0x00, 0x00, 0x01 }, | |
145 | [OPAL_MBR] = | |
146 | { 0x00, 0x00, 0x08, 0x04, 0x00, 0x00, 0x00, 0x00 }, | |
147 | [OPAL_AUTHORITY_TABLE] = | |
148 | { 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x00}, | |
149 | [OPAL_C_PIN_TABLE] = | |
150 | { 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x00}, | |
151 | [OPAL_LOCKING_INFO_TABLE] = | |
152 | { 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x01 }, | |
153 | [OPAL_ENTERPRISE_LOCKING_INFO_TABLE] = | |
154 | { 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
62c441c6 RR |
155 | [OPAL_DATASTORE] = |
156 | { 0x00, 0x00, 0x10, 0x01, 0x00, 0x00, 0x00, 0x00 }, | |
455a7b23 SB |
157 | |
158 | /* C_PIN_TABLE object ID's */ | |
1e815b33 | 159 | [OPAL_C_PIN_MSID] = |
455a7b23 SB |
160 | { 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x84, 0x02}, |
161 | [OPAL_C_PIN_SID] = | |
162 | { 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x01}, | |
163 | [OPAL_C_PIN_ADMIN1] = | |
164 | { 0x00, 0x00, 0x00, 0x0B, 0x00, 0x01, 0x00, 0x01}, | |
165 | ||
166 | /* half UID's (only first 4 bytes used) */ | |
455a7b23 SB |
167 | [OPAL_HALF_UID_AUTHORITY_OBJ_REF] = |
168 | { 0x00, 0x00, 0x0C, 0x05, 0xff, 0xff, 0xff, 0xff }, | |
169 | [OPAL_HALF_UID_BOOLEAN_ACE] = | |
170 | { 0x00, 0x00, 0x04, 0x0E, 0xff, 0xff, 0xff, 0xff }, | |
171 | ||
172 | /* special value for omitted optional parameter */ | |
173 | [OPAL_UID_HEXFF] = | |
174 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, | |
175 | }; | |
176 | ||
177 | /* | |
178 | * TCG Storage SSC Methods. | |
179 | * Derived from: TCG_Storage_Architecture_Core_Spec_v2.01_r1.00 | |
180 | * Section: 6.3 Assigned UIDs | |
181 | */ | |
1b6b75b0 | 182 | static const u8 opalmethod[][OPAL_METHOD_LENGTH] = { |
455a7b23 SB |
183 | [OPAL_PROPERTIES] = |
184 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x01 }, | |
185 | [OPAL_STARTSESSION] = | |
186 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x02 }, | |
187 | [OPAL_REVERT] = | |
188 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x02 }, | |
189 | [OPAL_ACTIVATE] = | |
190 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x03 }, | |
191 | [OPAL_EGET] = | |
192 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06 }, | |
193 | [OPAL_ESET] = | |
194 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x07 }, | |
195 | [OPAL_NEXT] = | |
196 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x08 }, | |
197 | [OPAL_EAUTHENTICATE] = | |
198 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0c }, | |
199 | [OPAL_GETACL] = | |
200 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0d }, | |
201 | [OPAL_GENKEY] = | |
202 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x10 }, | |
203 | [OPAL_REVERTSP] = | |
204 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x11 }, | |
205 | [OPAL_GET] = | |
206 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x16 }, | |
207 | [OPAL_SET] = | |
208 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x17 }, | |
209 | [OPAL_AUTHENTICATE] = | |
210 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x1c }, | |
211 | [OPAL_RANDOM] = | |
212 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x01 }, | |
213 | [OPAL_ERASE] = | |
214 | { 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x08, 0x03 }, | |
215 | }; | |
216 | ||
455a7b23 | 217 | static int end_opal_session_error(struct opal_dev *dev); |
0af2648e | 218 | static int opal_discovery0_step(struct opal_dev *dev); |
455a7b23 SB |
219 | |
220 | struct opal_suspend_data { | |
221 | struct opal_lock_unlock unlk; | |
222 | u8 lr; | |
223 | struct list_head node; | |
224 | }; | |
225 | ||
226 | /* | |
227 | * Derived from: | |
228 | * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00 | |
229 | * Section: 5.1.5 Method Status Codes | |
230 | */ | |
231 | static const char * const opal_errors[] = { | |
232 | "Success", | |
233 | "Not Authorized", | |
234 | "Unknown Error", | |
235 | "SP Busy", | |
236 | "SP Failed", | |
237 | "SP Disabled", | |
238 | "SP Frozen", | |
239 | "No Sessions Available", | |
240 | "Uniqueness Conflict", | |
241 | "Insufficient Space", | |
242 | "Insufficient Rows", | |
243 | "Invalid Function", | |
244 | "Invalid Parameter", | |
245 | "Invalid Reference", | |
246 | "Unknown Error", | |
247 | "TPER Malfunction", | |
248 | "Transaction Failure", | |
249 | "Response Overflow", | |
250 | "Authority Locked Out", | |
251 | }; | |
252 | ||
253 | static const char *opal_error_to_human(int error) | |
254 | { | |
255 | if (error == 0x3f) | |
256 | return "Failed"; | |
257 | ||
258 | if (error >= ARRAY_SIZE(opal_errors) || error < 0) | |
259 | return "Unknown Error"; | |
260 | ||
261 | return opal_errors[error]; | |
262 | } | |
263 | ||
264 | static void print_buffer(const u8 *ptr, u32 length) | |
265 | { | |
266 | #ifdef DEBUG | |
267 | print_hex_dump_bytes("OPAL: ", DUMP_PREFIX_OFFSET, ptr, length); | |
268 | pr_debug("\n"); | |
269 | #endif | |
270 | } | |
271 | ||
272 | static bool check_tper(const void *data) | |
273 | { | |
274 | const struct d0_tper_features *tper = data; | |
275 | u8 flags = tper->supported_features; | |
276 | ||
277 | if (!(flags & TPER_SYNC_SUPPORTED)) { | |
591c59d1 SB |
278 | pr_debug("TPer sync not supported. flags = %d\n", |
279 | tper->supported_features); | |
455a7b23 SB |
280 | return false; |
281 | } | |
282 | ||
283 | return true; | |
284 | } | |
285 | ||
c6ea7060 | 286 | static bool check_lcksuppt(const void *data) |
287 | { | |
288 | const struct d0_locking_features *lfeat = data; | |
289 | u8 sup_feat = lfeat->supported_features; | |
290 | ||
291 | return !!(sup_feat & LOCKING_SUPPORTED_MASK); | |
292 | } | |
293 | ||
294 | static bool check_lckenabled(const void *data) | |
295 | { | |
296 | const struct d0_locking_features *lfeat = data; | |
297 | u8 sup_feat = lfeat->supported_features; | |
298 | ||
299 | return !!(sup_feat & LOCKING_ENABLED_MASK); | |
300 | } | |
301 | ||
302 | static bool check_locked(const void *data) | |
303 | { | |
304 | const struct d0_locking_features *lfeat = data; | |
305 | u8 sup_feat = lfeat->supported_features; | |
306 | ||
307 | return !!(sup_feat & LOCKED_MASK); | |
308 | } | |
309 | ||
dbec491b SB |
310 | static bool check_mbrenabled(const void *data) |
311 | { | |
312 | const struct d0_locking_features *lfeat = data; | |
313 | u8 sup_feat = lfeat->supported_features; | |
314 | ||
315 | return !!(sup_feat & MBR_ENABLED_MASK); | |
316 | } | |
317 | ||
c6ea7060 | 318 | static bool check_mbrdone(const void *data) |
319 | { | |
320 | const struct d0_locking_features *lfeat = data; | |
321 | u8 sup_feat = lfeat->supported_features; | |
322 | ||
323 | return !!(sup_feat & MBR_DONE_MASK); | |
324 | } | |
325 | ||
455a7b23 SB |
326 | static bool check_sum(const void *data) |
327 | { | |
328 | const struct d0_single_user_mode *sum = data; | |
329 | u32 nlo = be32_to_cpu(sum->num_locking_objects); | |
330 | ||
331 | if (nlo == 0) { | |
591c59d1 | 332 | pr_debug("Need at least one locking object.\n"); |
455a7b23 SB |
333 | return false; |
334 | } | |
335 | ||
336 | pr_debug("Number of locking objects: %d\n", nlo); | |
337 | ||
338 | return true; | |
339 | } | |
340 | ||
341 | static u16 get_comid_v100(const void *data) | |
342 | { | |
343 | const struct d0_opal_v100 *v100 = data; | |
344 | ||
345 | return be16_to_cpu(v100->baseComID); | |
346 | } | |
347 | ||
348 | static u16 get_comid_v200(const void *data) | |
349 | { | |
350 | const struct d0_opal_v200 *v200 = data; | |
351 | ||
352 | return be16_to_cpu(v200->baseComID); | |
353 | } | |
354 | ||
355 | static int opal_send_cmd(struct opal_dev *dev) | |
356 | { | |
4f1244c8 | 357 | return dev->send_recv(dev->data, dev->comid, TCG_SECP_01, |
455a7b23 SB |
358 | dev->cmd, IO_BUFFER_LENGTH, |
359 | true); | |
360 | } | |
361 | ||
362 | static int opal_recv_cmd(struct opal_dev *dev) | |
363 | { | |
4f1244c8 | 364 | return dev->send_recv(dev->data, dev->comid, TCG_SECP_01, |
455a7b23 SB |
365 | dev->resp, IO_BUFFER_LENGTH, |
366 | false); | |
367 | } | |
368 | ||
369 | static int opal_recv_check(struct opal_dev *dev) | |
370 | { | |
371 | size_t buflen = IO_BUFFER_LENGTH; | |
372 | void *buffer = dev->resp; | |
373 | struct opal_header *hdr = buffer; | |
374 | int ret; | |
375 | ||
376 | do { | |
377 | pr_debug("Sent OPAL command: outstanding=%d, minTransfer=%d\n", | |
378 | hdr->cp.outstandingData, | |
379 | hdr->cp.minTransfer); | |
380 | ||
381 | if (hdr->cp.outstandingData == 0 || | |
382 | hdr->cp.minTransfer != 0) | |
383 | return 0; | |
384 | ||
385 | memset(buffer, 0, buflen); | |
386 | ret = opal_recv_cmd(dev); | |
387 | } while (!ret); | |
388 | ||
389 | return ret; | |
390 | } | |
391 | ||
392 | static int opal_send_recv(struct opal_dev *dev, cont_fn *cont) | |
393 | { | |
394 | int ret; | |
395 | ||
396 | ret = opal_send_cmd(dev); | |
397 | if (ret) | |
398 | return ret; | |
399 | ret = opal_recv_cmd(dev); | |
400 | if (ret) | |
401 | return ret; | |
402 | ret = opal_recv_check(dev); | |
403 | if (ret) | |
404 | return ret; | |
405 | return cont(dev); | |
406 | } | |
407 | ||
408 | static void check_geometry(struct opal_dev *dev, const void *data) | |
409 | { | |
410 | const struct d0_geometry_features *geo = data; | |
411 | ||
a9eb49c9 RD |
412 | dev->align = be64_to_cpu(geo->alignment_granularity); |
413 | dev->lowest_lba = be64_to_cpu(geo->lowest_aligned_lba); | |
9e05a259 OK |
414 | dev->logical_block_size = be32_to_cpu(geo->logical_block_size); |
415 | dev->align_required = geo->reserved01 & 1; | |
455a7b23 SB |
416 | } |
417 | ||
0af2648e DK |
418 | static int execute_step(struct opal_dev *dev, |
419 | const struct opal_step *step, size_t stepIndex) | |
420 | { | |
421 | int error = step->fn(dev, step->data); | |
422 | ||
423 | if (error) { | |
424 | pr_debug("Step %zu (%pS) failed with error %d: %s\n", | |
425 | stepIndex, step->fn, error, | |
426 | opal_error_to_human(error)); | |
427 | } | |
428 | ||
429 | return error; | |
430 | } | |
431 | ||
a80f36cc DK |
432 | static int execute_steps(struct opal_dev *dev, |
433 | const struct opal_step *steps, size_t n_steps) | |
455a7b23 | 434 | { |
0af2648e DK |
435 | size_t state = 0; |
436 | int error; | |
455a7b23 | 437 | |
0af2648e DK |
438 | /* first do a discovery0 */ |
439 | error = opal_discovery0_step(dev); | |
440 | if (error) | |
441 | return error; | |
455a7b23 | 442 | |
0af2648e DK |
443 | for (state = 0; state < n_steps; state++) { |
444 | error = execute_step(dev, &steps[state], state); | |
3db87236 DK |
445 | if (error) |
446 | goto out_error; | |
447 | } | |
2d19020b | 448 | |
3db87236 DK |
449 | return 0; |
450 | ||
451 | out_error: | |
452 | /* | |
0af2648e DK |
453 | * For each OPAL command the first step in steps starts some sort of |
454 | * session. If an error occurred in the initial discovery0 or if an | |
455 | * error occurred in the first step (and thus stopping the loop with | |
456 | * state == 0) then there was an error before or during the attempt to | |
457 | * start a session. Therefore we shouldn't attempt to terminate a | |
458 | * session, as one has not yet been created. | |
3db87236 | 459 | */ |
0af2648e | 460 | if (state > 0) |
3db87236 | 461 | end_opal_session_error(dev); |
455a7b23 SB |
462 | |
463 | return error; | |
464 | } | |
465 | ||
466 | static int opal_discovery0_end(struct opal_dev *dev) | |
467 | { | |
468 | bool found_com_id = false, supported = true, single_user = false; | |
469 | const struct d0_header *hdr = (struct d0_header *)dev->resp; | |
470 | const u8 *epos = dev->resp, *cpos = dev->resp; | |
471 | u16 comid = 0; | |
77039b96 | 472 | u32 hlen = be32_to_cpu(hdr->length); |
455a7b23 | 473 | |
77039b96 | 474 | print_buffer(dev->resp, hlen); |
c6ea7060 | 475 | dev->flags &= OPAL_FL_SUPPORTED; |
455a7b23 | 476 | |
77039b96 | 477 | if (hlen > IO_BUFFER_LENGTH - sizeof(*hdr)) { |
591c59d1 SB |
478 | pr_debug("Discovery length overflows buffer (%zu+%u)/%u\n", |
479 | sizeof(*hdr), hlen, IO_BUFFER_LENGTH); | |
77039b96 JD |
480 | return -EFAULT; |
481 | } | |
482 | ||
483 | epos += hlen; /* end of buffer */ | |
455a7b23 SB |
484 | cpos += sizeof(*hdr); /* current position on buffer */ |
485 | ||
486 | while (cpos < epos && supported) { | |
487 | const struct d0_features *body = | |
488 | (const struct d0_features *)cpos; | |
489 | ||
490 | switch (be16_to_cpu(body->code)) { | |
491 | case FC_TPER: | |
492 | supported = check_tper(body->features); | |
493 | break; | |
494 | case FC_SINGLEUSER: | |
495 | single_user = check_sum(body->features); | |
9ec041ea LB |
496 | if (single_user) |
497 | dev->flags |= OPAL_FL_SUM_SUPPORTED; | |
455a7b23 SB |
498 | break; |
499 | case FC_GEOMETRY: | |
500 | check_geometry(dev, body); | |
501 | break; | |
502 | case FC_LOCKING: | |
c6ea7060 | 503 | if (check_lcksuppt(body->features)) |
504 | dev->flags |= OPAL_FL_LOCKING_SUPPORTED; | |
505 | if (check_lckenabled(body->features)) | |
506 | dev->flags |= OPAL_FL_LOCKING_ENABLED; | |
507 | if (check_locked(body->features)) | |
508 | dev->flags |= OPAL_FL_LOCKED; | |
509 | if (check_mbrenabled(body->features)) | |
510 | dev->flags |= OPAL_FL_MBR_ENABLED; | |
511 | if (check_mbrdone(body->features)) | |
512 | dev->flags |= OPAL_FL_MBR_DONE; | |
dbec491b | 513 | break; |
455a7b23 SB |
514 | case FC_ENTERPRISE: |
515 | case FC_DATASTORE: | |
516 | /* some ignored properties */ | |
517 | pr_debug("Found OPAL feature description: %d\n", | |
518 | be16_to_cpu(body->code)); | |
519 | break; | |
520 | case FC_OPALV100: | |
521 | comid = get_comid_v100(body->features); | |
522 | found_com_id = true; | |
523 | break; | |
524 | case FC_OPALV200: | |
525 | comid = get_comid_v200(body->features); | |
526 | found_com_id = true; | |
527 | break; | |
528 | case 0xbfff ... 0xffff: | |
529 | /* vendor specific, just ignore */ | |
530 | break; | |
531 | default: | |
532 | pr_debug("OPAL Unknown feature: %d\n", | |
533 | be16_to_cpu(body->code)); | |
534 | ||
535 | } | |
536 | cpos += body->length + 4; | |
537 | } | |
538 | ||
539 | if (!supported) { | |
f5b37b7c | 540 | pr_debug("This device is not Opal enabled. Not Supported!\n"); |
455a7b23 SB |
541 | return -EOPNOTSUPP; |
542 | } | |
543 | ||
544 | if (!single_user) | |
f5b37b7c | 545 | pr_debug("Device doesn't support single user mode\n"); |
455a7b23 SB |
546 | |
547 | ||
548 | if (!found_com_id) { | |
f5b37b7c | 549 | pr_debug("Could not find OPAL comid for device. Returning early\n"); |
ed7158ba | 550 | return -EOPNOTSUPP; |
455a7b23 SB |
551 | } |
552 | ||
553 | dev->comid = comid; | |
554 | ||
555 | return 0; | |
556 | } | |
557 | ||
eed64951 | 558 | static int opal_discovery0(struct opal_dev *dev, void *data) |
455a7b23 SB |
559 | { |
560 | int ret; | |
561 | ||
562 | memset(dev->resp, 0, IO_BUFFER_LENGTH); | |
563 | dev->comid = OPAL_DISCOVERY_COMID; | |
564 | ret = opal_recv_cmd(dev); | |
565 | if (ret) | |
566 | return ret; | |
5cc23ed7 | 567 | |
455a7b23 SB |
568 | return opal_discovery0_end(dev); |
569 | } | |
570 | ||
0af2648e DK |
571 | static int opal_discovery0_step(struct opal_dev *dev) |
572 | { | |
573 | const struct opal_step discovery0_step = { | |
574 | opal_discovery0, | |
575 | }; | |
5cc23ed7 | 576 | |
0af2648e DK |
577 | return execute_step(dev, &discovery0_step, 0); |
578 | } | |
579 | ||
a9b25b4c JR |
580 | static size_t remaining_size(struct opal_dev *cmd) |
581 | { | |
582 | return IO_BUFFER_LENGTH - cmd->pos; | |
583 | } | |
584 | ||
e2821a50 | 585 | static bool can_add(int *err, struct opal_dev *cmd, size_t len) |
455a7b23 SB |
586 | { |
587 | if (*err) | |
e2821a50 JR |
588 | return false; |
589 | ||
a9b25b4c | 590 | if (remaining_size(cmd) < len) { |
e2821a50 | 591 | pr_debug("Error adding %zu bytes: end of buffer.\n", len); |
455a7b23 | 592 | *err = -ERANGE; |
e2821a50 | 593 | return false; |
455a7b23 | 594 | } |
e2821a50 JR |
595 | |
596 | return true; | |
597 | } | |
598 | ||
599 | static void add_token_u8(int *err, struct opal_dev *cmd, u8 tok) | |
600 | { | |
601 | if (!can_add(err, cmd, 1)) | |
602 | return; | |
5cc23ed7 | 603 | |
455a7b23 SB |
604 | cmd->cmd[cmd->pos++] = tok; |
605 | } | |
606 | ||
607 | static void add_short_atom_header(struct opal_dev *cmd, bool bytestring, | |
608 | bool has_sign, int len) | |
609 | { | |
610 | u8 atom; | |
611 | int err = 0; | |
612 | ||
613 | atom = SHORT_ATOM_ID; | |
614 | atom |= bytestring ? SHORT_ATOM_BYTESTRING : 0; | |
615 | atom |= has_sign ? SHORT_ATOM_SIGNED : 0; | |
616 | atom |= len & SHORT_ATOM_LEN_MASK; | |
617 | ||
618 | add_token_u8(&err, cmd, atom); | |
619 | } | |
620 | ||
621 | static void add_medium_atom_header(struct opal_dev *cmd, bool bytestring, | |
622 | bool has_sign, int len) | |
623 | { | |
624 | u8 header0; | |
625 | ||
626 | header0 = MEDIUM_ATOM_ID; | |
627 | header0 |= bytestring ? MEDIUM_ATOM_BYTESTRING : 0; | |
628 | header0 |= has_sign ? MEDIUM_ATOM_SIGNED : 0; | |
629 | header0 |= (len >> 8) & MEDIUM_ATOM_LEN_MASK; | |
5cc23ed7 | 630 | |
455a7b23 SB |
631 | cmd->cmd[cmd->pos++] = header0; |
632 | cmd->cmd[cmd->pos++] = len; | |
633 | } | |
634 | ||
635 | static void add_token_u64(int *err, struct opal_dev *cmd, u64 number) | |
636 | { | |
455a7b23 SB |
637 | size_t len; |
638 | int msb; | |
455a7b23 SB |
639 | |
640 | if (!(number & ~TINY_ATOM_DATA_MASK)) { | |
641 | add_token_u8(err, cmd, number); | |
642 | return; | |
643 | } | |
644 | ||
5f990d31 JR |
645 | msb = fls64(number); |
646 | len = DIV_ROUND_UP(msb, 8); | |
455a7b23 | 647 | |
e2821a50 | 648 | if (!can_add(err, cmd, len + 1)) { |
591c59d1 | 649 | pr_debug("Error adding u64: end of buffer.\n"); |
455a7b23 SB |
650 | return; |
651 | } | |
652 | add_short_atom_header(cmd, false, false, len); | |
5f990d31 JR |
653 | while (len--) |
654 | add_token_u8(err, cmd, number >> (len * 8)); | |
455a7b23 SB |
655 | } |
656 | ||
28559959 | 657 | static u8 *add_bytestring_header(int *err, struct opal_dev *cmd, size_t len) |
455a7b23 SB |
658 | { |
659 | size_t header_len = 1; | |
660 | bool is_short_atom = true; | |
661 | ||
455a7b23 SB |
662 | if (len & ~SHORT_ATOM_LEN_MASK) { |
663 | header_len = 2; | |
664 | is_short_atom = false; | |
665 | } | |
666 | ||
e2821a50 | 667 | if (!can_add(err, cmd, header_len + len)) { |
591c59d1 | 668 | pr_debug("Error adding bytestring: end of buffer.\n"); |
28559959 | 669 | return NULL; |
455a7b23 SB |
670 | } |
671 | ||
672 | if (is_short_atom) | |
673 | add_short_atom_header(cmd, true, false, len); | |
674 | else | |
675 | add_medium_atom_header(cmd, true, false, len); | |
676 | ||
28559959 JR |
677 | return &cmd->cmd[cmd->pos]; |
678 | } | |
455a7b23 | 679 | |
28559959 JR |
680 | static void add_token_bytestring(int *err, struct opal_dev *cmd, |
681 | const u8 *bytestring, size_t len) | |
682 | { | |
683 | u8 *start; | |
684 | ||
685 | start = add_bytestring_header(err, cmd, len); | |
686 | if (!start) | |
687 | return; | |
688 | memcpy(start, bytestring, len); | |
689 | cmd->pos += len; | |
455a7b23 SB |
690 | } |
691 | ||
692 | static int build_locking_range(u8 *buffer, size_t length, u8 lr) | |
693 | { | |
694 | if (length > OPAL_UID_LENGTH) { | |
591c59d1 | 695 | pr_debug("Can't build locking range. Length OOB\n"); |
455a7b23 SB |
696 | return -ERANGE; |
697 | } | |
698 | ||
699 | memcpy(buffer, opaluid[OPAL_LOCKINGRANGE_GLOBAL], OPAL_UID_LENGTH); | |
700 | ||
701 | if (lr == 0) | |
702 | return 0; | |
5cc23ed7 | 703 | |
455a7b23 SB |
704 | buffer[5] = LOCKING_RANGE_NON_GLOBAL; |
705 | buffer[7] = lr; | |
706 | ||
707 | return 0; | |
708 | } | |
709 | ||
710 | static int build_locking_user(u8 *buffer, size_t length, u8 lr) | |
711 | { | |
712 | if (length > OPAL_UID_LENGTH) { | |
1e815b33 | 713 | pr_debug("Can't build locking range user. Length OOB\n"); |
455a7b23 SB |
714 | return -ERANGE; |
715 | } | |
716 | ||
717 | memcpy(buffer, opaluid[OPAL_USER1_UID], OPAL_UID_LENGTH); | |
718 | ||
719 | buffer[7] = lr + 1; | |
720 | ||
721 | return 0; | |
722 | } | |
723 | ||
724 | static void set_comid(struct opal_dev *cmd, u16 comid) | |
725 | { | |
726 | struct opal_header *hdr = (struct opal_header *)cmd->cmd; | |
727 | ||
728 | hdr->cp.extendedComID[0] = comid >> 8; | |
729 | hdr->cp.extendedComID[1] = comid; | |
730 | hdr->cp.extendedComID[2] = 0; | |
731 | hdr->cp.extendedComID[3] = 0; | |
732 | } | |
733 | ||
734 | static int cmd_finalize(struct opal_dev *cmd, u32 hsn, u32 tsn) | |
735 | { | |
736 | struct opal_header *hdr; | |
737 | int err = 0; | |
738 | ||
a9b25b4c JR |
739 | /* |
740 | * Close the parameter list opened from cmd_start. | |
741 | * The number of bytes added must be equal to | |
742 | * CMD_FINALIZE_BYTES_NEEDED. | |
743 | */ | |
78d584ca DK |
744 | add_token_u8(&err, cmd, OPAL_ENDLIST); |
745 | ||
455a7b23 SB |
746 | add_token_u8(&err, cmd, OPAL_ENDOFDATA); |
747 | add_token_u8(&err, cmd, OPAL_STARTLIST); | |
748 | add_token_u8(&err, cmd, 0); | |
749 | add_token_u8(&err, cmd, 0); | |
750 | add_token_u8(&err, cmd, 0); | |
751 | add_token_u8(&err, cmd, OPAL_ENDLIST); | |
752 | ||
753 | if (err) { | |
591c59d1 | 754 | pr_debug("Error finalizing command.\n"); |
455a7b23 SB |
755 | return -EFAULT; |
756 | } | |
757 | ||
758 | hdr = (struct opal_header *) cmd->cmd; | |
759 | ||
760 | hdr->pkt.tsn = cpu_to_be32(tsn); | |
761 | hdr->pkt.hsn = cpu_to_be32(hsn); | |
762 | ||
763 | hdr->subpkt.length = cpu_to_be32(cmd->pos - sizeof(*hdr)); | |
764 | while (cmd->pos % 4) { | |
765 | if (cmd->pos >= IO_BUFFER_LENGTH) { | |
591c59d1 | 766 | pr_debug("Error: Buffer overrun\n"); |
455a7b23 SB |
767 | return -ERANGE; |
768 | } | |
769 | cmd->cmd[cmd->pos++] = 0; | |
770 | } | |
771 | hdr->pkt.length = cpu_to_be32(cmd->pos - sizeof(hdr->cp) - | |
772 | sizeof(hdr->pkt)); | |
773 | hdr->cp.length = cpu_to_be32(cmd->pos - sizeof(hdr->cp)); | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
cccb9241 JD |
778 | static const struct opal_resp_tok *response_get_token( |
779 | const struct parsed_resp *resp, | |
780 | int n) | |
455a7b23 SB |
781 | { |
782 | const struct opal_resp_tok *tok; | |
783 | ||
7d9b62ae DK |
784 | if (!resp) { |
785 | pr_debug("Response is NULL\n"); | |
786 | return ERR_PTR(-EINVAL); | |
787 | } | |
788 | ||
455a7b23 | 789 | if (n >= resp->num) { |
591c59d1 SB |
790 | pr_debug("Token number doesn't exist: %d, resp: %d\n", |
791 | n, resp->num); | |
cccb9241 | 792 | return ERR_PTR(-EINVAL); |
455a7b23 SB |
793 | } |
794 | ||
795 | tok = &resp->toks[n]; | |
796 | if (tok->len == 0) { | |
591c59d1 | 797 | pr_debug("Token length must be non-zero\n"); |
cccb9241 | 798 | return ERR_PTR(-EINVAL); |
455a7b23 SB |
799 | } |
800 | ||
cccb9241 | 801 | return tok; |
455a7b23 SB |
802 | } |
803 | ||
aedb6e24 JD |
804 | static ssize_t response_parse_tiny(struct opal_resp_tok *tok, |
805 | const u8 *pos) | |
455a7b23 SB |
806 | { |
807 | tok->pos = pos; | |
808 | tok->len = 1; | |
809 | tok->width = OPAL_WIDTH_TINY; | |
810 | ||
811 | if (pos[0] & TINY_ATOM_SIGNED) { | |
812 | tok->type = OPAL_DTA_TOKENID_SINT; | |
813 | } else { | |
814 | tok->type = OPAL_DTA_TOKENID_UINT; | |
815 | tok->stored.u = pos[0] & 0x3f; | |
816 | } | |
817 | ||
818 | return tok->len; | |
819 | } | |
820 | ||
aedb6e24 JD |
821 | static ssize_t response_parse_short(struct opal_resp_tok *tok, |
822 | const u8 *pos) | |
455a7b23 SB |
823 | { |
824 | tok->pos = pos; | |
825 | tok->len = (pos[0] & SHORT_ATOM_LEN_MASK) + 1; | |
826 | tok->width = OPAL_WIDTH_SHORT; | |
827 | ||
828 | if (pos[0] & SHORT_ATOM_BYTESTRING) { | |
829 | tok->type = OPAL_DTA_TOKENID_BYTESTRING; | |
830 | } else if (pos[0] & SHORT_ATOM_SIGNED) { | |
831 | tok->type = OPAL_DTA_TOKENID_SINT; | |
832 | } else { | |
833 | u64 u_integer = 0; | |
aedb6e24 | 834 | ssize_t i, b = 0; |
455a7b23 SB |
835 | |
836 | tok->type = OPAL_DTA_TOKENID_UINT; | |
837 | if (tok->len > 9) { | |
591c59d1 | 838 | pr_debug("uint64 with more than 8 bytes\n"); |
455a7b23 SB |
839 | return -EINVAL; |
840 | } | |
841 | for (i = tok->len - 1; i > 0; i--) { | |
842 | u_integer |= ((u64)pos[i] << (8 * b)); | |
843 | b++; | |
844 | } | |
845 | tok->stored.u = u_integer; | |
846 | } | |
847 | ||
848 | return tok->len; | |
849 | } | |
850 | ||
aedb6e24 JD |
851 | static ssize_t response_parse_medium(struct opal_resp_tok *tok, |
852 | const u8 *pos) | |
455a7b23 SB |
853 | { |
854 | tok->pos = pos; | |
855 | tok->len = (((pos[0] & MEDIUM_ATOM_LEN_MASK) << 8) | pos[1]) + 2; | |
856 | tok->width = OPAL_WIDTH_MEDIUM; | |
857 | ||
858 | if (pos[0] & MEDIUM_ATOM_BYTESTRING) | |
859 | tok->type = OPAL_DTA_TOKENID_BYTESTRING; | |
860 | else if (pos[0] & MEDIUM_ATOM_SIGNED) | |
861 | tok->type = OPAL_DTA_TOKENID_SINT; | |
862 | else | |
863 | tok->type = OPAL_DTA_TOKENID_UINT; | |
864 | ||
865 | return tok->len; | |
866 | } | |
867 | ||
aedb6e24 JD |
868 | static ssize_t response_parse_long(struct opal_resp_tok *tok, |
869 | const u8 *pos) | |
455a7b23 SB |
870 | { |
871 | tok->pos = pos; | |
872 | tok->len = ((pos[1] << 16) | (pos[2] << 8) | pos[3]) + 4; | |
873 | tok->width = OPAL_WIDTH_LONG; | |
874 | ||
875 | if (pos[0] & LONG_ATOM_BYTESTRING) | |
876 | tok->type = OPAL_DTA_TOKENID_BYTESTRING; | |
877 | else if (pos[0] & LONG_ATOM_SIGNED) | |
878 | tok->type = OPAL_DTA_TOKENID_SINT; | |
879 | else | |
880 | tok->type = OPAL_DTA_TOKENID_UINT; | |
881 | ||
882 | return tok->len; | |
883 | } | |
884 | ||
aedb6e24 JD |
885 | static ssize_t response_parse_token(struct opal_resp_tok *tok, |
886 | const u8 *pos) | |
455a7b23 SB |
887 | { |
888 | tok->pos = pos; | |
889 | tok->len = 1; | |
890 | tok->type = OPAL_DTA_TOKENID_TOKEN; | |
891 | tok->width = OPAL_WIDTH_TOKEN; | |
892 | ||
893 | return tok->len; | |
894 | } | |
895 | ||
896 | static int response_parse(const u8 *buf, size_t length, | |
897 | struct parsed_resp *resp) | |
898 | { | |
899 | const struct opal_header *hdr; | |
900 | struct opal_resp_tok *iter; | |
901 | int num_entries = 0; | |
902 | int total; | |
aedb6e24 | 903 | ssize_t token_length; |
455a7b23 | 904 | const u8 *pos; |
77039b96 | 905 | u32 clen, plen, slen; |
455a7b23 SB |
906 | |
907 | if (!buf) | |
908 | return -EFAULT; | |
909 | ||
910 | if (!resp) | |
911 | return -EFAULT; | |
912 | ||
913 | hdr = (struct opal_header *)buf; | |
914 | pos = buf; | |
915 | pos += sizeof(*hdr); | |
916 | ||
77039b96 JD |
917 | clen = be32_to_cpu(hdr->cp.length); |
918 | plen = be32_to_cpu(hdr->pkt.length); | |
919 | slen = be32_to_cpu(hdr->subpkt.length); | |
920 | pr_debug("Response size: cp: %u, pkt: %u, subpkt: %u\n", | |
921 | clen, plen, slen); | |
922 | ||
923 | if (clen == 0 || plen == 0 || slen == 0 || | |
924 | slen > IO_BUFFER_LENGTH - sizeof(*hdr)) { | |
591c59d1 SB |
925 | pr_debug("Bad header length. cp: %u, pkt: %u, subpkt: %u\n", |
926 | clen, plen, slen); | |
455a7b23 SB |
927 | print_buffer(pos, sizeof(*hdr)); |
928 | return -EINVAL; | |
929 | } | |
930 | ||
931 | if (pos > buf + length) | |
932 | return -EFAULT; | |
933 | ||
934 | iter = resp->toks; | |
77039b96 | 935 | total = slen; |
455a7b23 SB |
936 | print_buffer(pos, total); |
937 | while (total > 0) { | |
938 | if (pos[0] <= TINY_ATOM_BYTE) /* tiny atom */ | |
939 | token_length = response_parse_tiny(iter, pos); | |
940 | else if (pos[0] <= SHORT_ATOM_BYTE) /* short atom */ | |
941 | token_length = response_parse_short(iter, pos); | |
942 | else if (pos[0] <= MEDIUM_ATOM_BYTE) /* medium atom */ | |
943 | token_length = response_parse_medium(iter, pos); | |
944 | else if (pos[0] <= LONG_ATOM_BYTE) /* long atom */ | |
945 | token_length = response_parse_long(iter, pos); | |
946 | else /* TOKEN */ | |
947 | token_length = response_parse_token(iter, pos); | |
948 | ||
aedb6e24 JD |
949 | if (token_length < 0) |
950 | return token_length; | |
455a7b23 SB |
951 | |
952 | pos += token_length; | |
953 | total -= token_length; | |
954 | iter++; | |
955 | num_entries++; | |
956 | } | |
957 | ||
455a7b23 SB |
958 | resp->num = num_entries; |
959 | ||
960 | return 0; | |
961 | } | |
962 | ||
963 | static size_t response_get_string(const struct parsed_resp *resp, int n, | |
964 | const char **store) | |
965 | { | |
d15e1175 | 966 | u8 skip; |
b68f09ec | 967 | const struct opal_resp_tok *tok; |
d15e1175 | 968 | |
455a7b23 | 969 | *store = NULL; |
b68f09ec DK |
970 | tok = response_get_token(resp, n); |
971 | if (IS_ERR(tok)) | |
455a7b23 | 972 | return 0; |
455a7b23 | 973 | |
b68f09ec | 974 | if (tok->type != OPAL_DTA_TOKENID_BYTESTRING) { |
591c59d1 | 975 | pr_debug("Token is not a byte string!\n"); |
455a7b23 SB |
976 | return 0; |
977 | } | |
978 | ||
b68f09ec | 979 | switch (tok->width) { |
d15e1175 JR |
980 | case OPAL_WIDTH_TINY: |
981 | case OPAL_WIDTH_SHORT: | |
982 | skip = 1; | |
983 | break; | |
984 | case OPAL_WIDTH_MEDIUM: | |
985 | skip = 2; | |
986 | break; | |
987 | case OPAL_WIDTH_LONG: | |
988 | skip = 4; | |
989 | break; | |
990 | default: | |
991 | pr_debug("Token has invalid width!\n"); | |
992 | return 0; | |
993 | } | |
994 | ||
b68f09ec | 995 | *store = tok->pos + skip; |
5cc23ed7 | 996 | |
b68f09ec | 997 | return tok->len - skip; |
455a7b23 SB |
998 | } |
999 | ||
1000 | static u64 response_get_u64(const struct parsed_resp *resp, int n) | |
1001 | { | |
b68f09ec | 1002 | const struct opal_resp_tok *tok; |
455a7b23 | 1003 | |
b68f09ec DK |
1004 | tok = response_get_token(resp, n); |
1005 | if (IS_ERR(tok)) | |
455a7b23 | 1006 | return 0; |
455a7b23 | 1007 | |
b68f09ec DK |
1008 | if (tok->type != OPAL_DTA_TOKENID_UINT) { |
1009 | pr_debug("Token is not unsigned int: %d\n", tok->type); | |
455a7b23 SB |
1010 | return 0; |
1011 | } | |
1012 | ||
b68f09ec DK |
1013 | if (tok->width != OPAL_WIDTH_TINY && tok->width != OPAL_WIDTH_SHORT) { |
1014 | pr_debug("Atom is not short or tiny: %d\n", tok->width); | |
455a7b23 SB |
1015 | return 0; |
1016 | } | |
1017 | ||
b68f09ec | 1018 | return tok->stored.u; |
455a7b23 SB |
1019 | } |
1020 | ||
cccb9241 JD |
1021 | static bool response_token_matches(const struct opal_resp_tok *token, u8 match) |
1022 | { | |
1023 | if (IS_ERR(token) || | |
1024 | token->type != OPAL_DTA_TOKENID_TOKEN || | |
1025 | token->pos[0] != match) | |
1026 | return false; | |
1027 | return true; | |
1028 | } | |
1029 | ||
455a7b23 SB |
1030 | static u8 response_status(const struct parsed_resp *resp) |
1031 | { | |
cccb9241 JD |
1032 | const struct opal_resp_tok *tok; |
1033 | ||
1034 | tok = response_get_token(resp, 0); | |
1035 | if (response_token_matches(tok, OPAL_ENDOFSESSION)) | |
455a7b23 | 1036 | return 0; |
455a7b23 SB |
1037 | |
1038 | if (resp->num < 5) | |
1039 | return DTAERROR_NO_METHOD_STATUS; | |
1040 | ||
cccb9241 JD |
1041 | tok = response_get_token(resp, resp->num - 5); |
1042 | if (!response_token_matches(tok, OPAL_STARTLIST)) | |
1043 | return DTAERROR_NO_METHOD_STATUS; | |
1044 | ||
1045 | tok = response_get_token(resp, resp->num - 1); | |
1046 | if (!response_token_matches(tok, OPAL_ENDLIST)) | |
455a7b23 SB |
1047 | return DTAERROR_NO_METHOD_STATUS; |
1048 | ||
1049 | return response_get_u64(resp, resp->num - 4); | |
1050 | } | |
1051 | ||
1052 | /* Parses and checks for errors */ | |
1053 | static int parse_and_check_status(struct opal_dev *dev) | |
1054 | { | |
1055 | int error; | |
1056 | ||
1057 | print_buffer(dev->cmd, dev->pos); | |
1058 | ||
1059 | error = response_parse(dev->resp, IO_BUFFER_LENGTH, &dev->parsed); | |
1060 | if (error) { | |
591c59d1 | 1061 | pr_debug("Couldn't parse response.\n"); |
455a7b23 SB |
1062 | return error; |
1063 | } | |
1064 | ||
1065 | return response_status(&dev->parsed); | |
1066 | } | |
1067 | ||
1068 | static void clear_opal_cmd(struct opal_dev *dev) | |
1069 | { | |
1070 | dev->pos = sizeof(struct opal_header); | |
1071 | memset(dev->cmd, 0, IO_BUFFER_LENGTH); | |
1072 | } | |
1073 | ||
e8b29224 DK |
1074 | static int cmd_start(struct opal_dev *dev, const u8 *uid, const u8 *method) |
1075 | { | |
1076 | int err = 0; | |
1077 | ||
1078 | clear_opal_cmd(dev); | |
1079 | set_comid(dev, dev->comid); | |
1080 | ||
1081 | add_token_u8(&err, dev, OPAL_CALL); | |
1082 | add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH); | |
1083 | add_token_bytestring(&err, dev, method, OPAL_METHOD_LENGTH); | |
1084 | ||
1085 | /* | |
1086 | * Every method call is followed by its parameters enclosed within | |
1087 | * OPAL_STARTLIST and OPAL_ENDLIST tokens. We automatically open the | |
1088 | * parameter list here and close it later in cmd_finalize. | |
1089 | */ | |
1090 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1091 | ||
1092 | return err; | |
1093 | } | |
1094 | ||
455a7b23 SB |
1095 | static int start_opal_session_cont(struct opal_dev *dev) |
1096 | { | |
1097 | u32 hsn, tsn; | |
1098 | int error = 0; | |
1099 | ||
1100 | error = parse_and_check_status(dev); | |
1101 | if (error) | |
1102 | return error; | |
1103 | ||
1104 | hsn = response_get_u64(&dev->parsed, 4); | |
1105 | tsn = response_get_u64(&dev->parsed, 5); | |
1106 | ||
88d6041d | 1107 | if (hsn != GENERIC_HOST_SESSION_NUM || tsn < FIRST_TPER_SESSION_NUM) { |
591c59d1 | 1108 | pr_debug("Couldn't authenticate session\n"); |
455a7b23 SB |
1109 | return -EPERM; |
1110 | } | |
1111 | ||
1112 | dev->hsn = hsn; | |
1113 | dev->tsn = tsn; | |
5cc23ed7 | 1114 | |
455a7b23 SB |
1115 | return 0; |
1116 | } | |
1117 | ||
1118 | static void add_suspend_info(struct opal_dev *dev, | |
1119 | struct opal_suspend_data *sus) | |
1120 | { | |
1121 | struct opal_suspend_data *iter; | |
1122 | ||
1123 | list_for_each_entry(iter, &dev->unlk_lst, node) { | |
1124 | if (iter->lr == sus->lr) { | |
1125 | list_del(&iter->node); | |
1126 | kfree(iter); | |
1127 | break; | |
1128 | } | |
1129 | } | |
1130 | list_add_tail(&sus->node, &dev->unlk_lst); | |
1131 | } | |
1132 | ||
1133 | static int end_session_cont(struct opal_dev *dev) | |
1134 | { | |
1135 | dev->hsn = 0; | |
1136 | dev->tsn = 0; | |
5cc23ed7 | 1137 | |
455a7b23 SB |
1138 | return parse_and_check_status(dev); |
1139 | } | |
1140 | ||
1141 | static int finalize_and_send(struct opal_dev *dev, cont_fn cont) | |
1142 | { | |
1143 | int ret; | |
1144 | ||
1145 | ret = cmd_finalize(dev, dev->hsn, dev->tsn); | |
1146 | if (ret) { | |
591c59d1 | 1147 | pr_debug("Error finalizing command buffer: %d\n", ret); |
455a7b23 SB |
1148 | return ret; |
1149 | } | |
1150 | ||
1151 | print_buffer(dev->cmd, dev->pos); | |
1152 | ||
1153 | return opal_send_recv(dev, cont); | |
1154 | } | |
1155 | ||
baf82b67 OK |
1156 | static int generic_get_columns(struct opal_dev *dev, const u8 *table, |
1157 | u64 start_column, u64 end_column) | |
3fff234b DK |
1158 | { |
1159 | int err; | |
1160 | ||
1161 | err = cmd_start(dev, table, opalmethod[OPAL_GET]); | |
1162 | ||
1163 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1164 | ||
1165 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1166 | add_token_u8(&err, dev, OPAL_STARTCOLUMN); | |
baf82b67 | 1167 | add_token_u64(&err, dev, start_column); |
3fff234b DK |
1168 | add_token_u8(&err, dev, OPAL_ENDNAME); |
1169 | ||
1170 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1171 | add_token_u8(&err, dev, OPAL_ENDCOLUMN); | |
baf82b67 | 1172 | add_token_u64(&err, dev, end_column); |
3fff234b DK |
1173 | add_token_u8(&err, dev, OPAL_ENDNAME); |
1174 | ||
1175 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1176 | ||
1177 | if (err) | |
1178 | return err; | |
1179 | ||
1180 | return finalize_and_send(dev, parse_and_check_status); | |
1181 | } | |
1182 | ||
baf82b67 OK |
1183 | /* |
1184 | * request @column from table @table on device @dev. On success, the column | |
1185 | * data will be available in dev->resp->tok[4] | |
1186 | */ | |
1187 | static int generic_get_column(struct opal_dev *dev, const u8 *table, | |
1188 | u64 column) | |
1189 | { | |
1190 | return generic_get_columns(dev, table, column, column); | |
1191 | } | |
1192 | ||
ff91064e JR |
1193 | /* |
1194 | * see TCG SAS 5.3.2.3 for a description of the available columns | |
1195 | * | |
1196 | * the result is provided in dev->resp->tok[4] | |
1197 | */ | |
3495ea1b | 1198 | static int generic_get_table_info(struct opal_dev *dev, const u8 *table_uid, |
ff91064e JR |
1199 | u64 column) |
1200 | { | |
1201 | u8 uid[OPAL_UID_LENGTH]; | |
3495ea1b | 1202 | const unsigned int half = OPAL_UID_LENGTH_HALF; |
ff91064e JR |
1203 | |
1204 | /* sed-opal UIDs can be split in two halves: | |
1205 | * first: actual table index | |
1206 | * second: relative index in the table | |
1207 | * so we have to get the first half of the OPAL_TABLE_TABLE and use the | |
1208 | * first part of the target table as relative index into that table | |
1209 | */ | |
1210 | memcpy(uid, opaluid[OPAL_TABLE_TABLE], half); | |
3495ea1b | 1211 | memcpy(uid + half, table_uid, half); |
ff91064e JR |
1212 | |
1213 | return generic_get_column(dev, uid, column); | |
1214 | } | |
1215 | ||
eed64951 | 1216 | static int gen_key(struct opal_dev *dev, void *data) |
455a7b23 | 1217 | { |
455a7b23 | 1218 | u8 uid[OPAL_UID_LENGTH]; |
e8b29224 | 1219 | int err; |
455a7b23 SB |
1220 | |
1221 | memcpy(uid, dev->prev_data, min(sizeof(uid), dev->prev_d_len)); | |
455a7b23 SB |
1222 | kfree(dev->prev_data); |
1223 | dev->prev_data = NULL; | |
1224 | ||
e8b29224 | 1225 | err = cmd_start(dev, uid, opalmethod[OPAL_GENKEY]); |
455a7b23 SB |
1226 | |
1227 | if (err) { | |
591c59d1 | 1228 | pr_debug("Error building gen key command\n"); |
455a7b23 SB |
1229 | return err; |
1230 | ||
1231 | } | |
5cc23ed7 | 1232 | |
455a7b23 SB |
1233 | return finalize_and_send(dev, parse_and_check_status); |
1234 | } | |
1235 | ||
1236 | static int get_active_key_cont(struct opal_dev *dev) | |
1237 | { | |
1238 | const char *activekey; | |
1239 | size_t keylen; | |
1240 | int error = 0; | |
1241 | ||
1242 | error = parse_and_check_status(dev); | |
1243 | if (error) | |
1244 | return error; | |
5cc23ed7 | 1245 | |
455a7b23 SB |
1246 | keylen = response_get_string(&dev->parsed, 4, &activekey); |
1247 | if (!activekey) { | |
591c59d1 SB |
1248 | pr_debug("%s: Couldn't extract the Activekey from the response\n", |
1249 | __func__); | |
455a7b23 SB |
1250 | return OPAL_INVAL_PARAM; |
1251 | } | |
5cc23ed7 | 1252 | |
455a7b23 SB |
1253 | dev->prev_data = kmemdup(activekey, keylen, GFP_KERNEL); |
1254 | ||
1255 | if (!dev->prev_data) | |
1256 | return -ENOMEM; | |
1257 | ||
1258 | dev->prev_d_len = keylen; | |
1259 | ||
1260 | return 0; | |
1261 | } | |
1262 | ||
eed64951 | 1263 | static int get_active_key(struct opal_dev *dev, void *data) |
455a7b23 SB |
1264 | { |
1265 | u8 uid[OPAL_UID_LENGTH]; | |
e8b29224 | 1266 | int err; |
eed64951 | 1267 | u8 *lr = data; |
455a7b23 | 1268 | |
455a7b23 SB |
1269 | err = build_locking_range(uid, sizeof(uid), *lr); |
1270 | if (err) | |
1271 | return err; | |
1272 | ||
3fff234b DK |
1273 | err = generic_get_column(dev, uid, OPAL_ACTIVEKEY); |
1274 | if (err) | |
455a7b23 | 1275 | return err; |
455a7b23 | 1276 | |
3fff234b | 1277 | return get_active_key_cont(dev); |
455a7b23 SB |
1278 | } |
1279 | ||
3495ea1b RR |
1280 | static int generic_table_write_data(struct opal_dev *dev, const u64 data, |
1281 | u64 offset, u64 size, const u8 *uid) | |
1282 | { | |
1283 | const u8 __user *src = (u8 __user *)(uintptr_t)data; | |
1284 | u8 *dst; | |
1285 | u64 len; | |
1286 | size_t off = 0; | |
1287 | int err; | |
1288 | ||
1289 | /* do we fit in the available space? */ | |
1290 | err = generic_get_table_info(dev, uid, OPAL_TABLE_ROWS); | |
1291 | if (err) { | |
1292 | pr_debug("Couldn't get the table size\n"); | |
1293 | return err; | |
1294 | } | |
1295 | ||
1296 | len = response_get_u64(&dev->parsed, 4); | |
1297 | if (size > len || offset > len - size) { | |
1298 | pr_debug("Does not fit in the table (%llu vs. %llu)\n", | |
1299 | offset + size, len); | |
1300 | return -ENOSPC; | |
1301 | } | |
1302 | ||
1303 | /* do the actual transmission(s) */ | |
1304 | while (off < size) { | |
1305 | err = cmd_start(dev, uid, opalmethod[OPAL_SET]); | |
1306 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1307 | add_token_u8(&err, dev, OPAL_WHERE); | |
1308 | add_token_u64(&err, dev, offset + off); | |
1309 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1310 | ||
1311 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1312 | add_token_u8(&err, dev, OPAL_VALUES); | |
1313 | ||
1314 | /* | |
1315 | * The bytestring header is either 1 or 2 bytes, so assume 2. | |
1316 | * There also needs to be enough space to accommodate the | |
1317 | * trailing OPAL_ENDNAME (1 byte) and tokens added by | |
1318 | * cmd_finalize. | |
1319 | */ | |
1320 | len = min(remaining_size(dev) - (2+1+CMD_FINALIZE_BYTES_NEEDED), | |
1321 | (size_t)(size - off)); | |
1322 | pr_debug("Write bytes %zu+%llu/%llu\n", off, len, size); | |
1323 | ||
1324 | dst = add_bytestring_header(&err, dev, len); | |
1325 | if (!dst) | |
1326 | break; | |
1327 | ||
1328 | if (copy_from_user(dst, src + off, len)) { | |
1329 | err = -EFAULT; | |
1330 | break; | |
1331 | } | |
1332 | ||
1333 | dev->pos += len; | |
1334 | ||
1335 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1336 | if (err) | |
1337 | break; | |
1338 | ||
1339 | err = finalize_and_send(dev, parse_and_check_status); | |
1340 | if (err) | |
1341 | break; | |
1342 | ||
1343 | off += len; | |
1344 | } | |
1345 | ||
1346 | return err; | |
1347 | } | |
1348 | ||
455a7b23 SB |
1349 | static int generic_lr_enable_disable(struct opal_dev *dev, |
1350 | u8 *uid, bool rle, bool wle, | |
1351 | bool rl, bool wl) | |
1352 | { | |
e8b29224 | 1353 | int err; |
455a7b23 | 1354 | |
e8b29224 | 1355 | err = cmd_start(dev, uid, opalmethod[OPAL_SET]); |
455a7b23 | 1356 | |
455a7b23 SB |
1357 | add_token_u8(&err, dev, OPAL_STARTNAME); |
1358 | add_token_u8(&err, dev, OPAL_VALUES); | |
1359 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1360 | ||
1361 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
372be408 | 1362 | add_token_u8(&err, dev, OPAL_READLOCKENABLED); |
455a7b23 SB |
1363 | add_token_u8(&err, dev, rle); |
1364 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1365 | ||
1366 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
372be408 | 1367 | add_token_u8(&err, dev, OPAL_WRITELOCKENABLED); |
455a7b23 SB |
1368 | add_token_u8(&err, dev, wle); |
1369 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1370 | ||
1371 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1372 | add_token_u8(&err, dev, OPAL_READLOCKED); | |
1373 | add_token_u8(&err, dev, rl); | |
1374 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1375 | ||
1376 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1377 | add_token_u8(&err, dev, OPAL_WRITELOCKED); | |
1378 | add_token_u8(&err, dev, wl); | |
1379 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1380 | ||
1381 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1382 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
5cc23ed7 | 1383 | |
455a7b23 SB |
1384 | return err; |
1385 | } | |
1386 | ||
1387 | static inline int enable_global_lr(struct opal_dev *dev, u8 *uid, | |
1388 | struct opal_user_lr_setup *setup) | |
1389 | { | |
1390 | int err; | |
1391 | ||
1392 | err = generic_lr_enable_disable(dev, uid, !!setup->RLE, !!setup->WLE, | |
1393 | 0, 0); | |
1394 | if (err) | |
591c59d1 | 1395 | pr_debug("Failed to create enable global lr command\n"); |
5cc23ed7 | 1396 | |
455a7b23 SB |
1397 | return err; |
1398 | } | |
1399 | ||
eed64951 | 1400 | static int setup_locking_range(struct opal_dev *dev, void *data) |
455a7b23 SB |
1401 | { |
1402 | u8 uid[OPAL_UID_LENGTH]; | |
eed64951 | 1403 | struct opal_user_lr_setup *setup = data; |
455a7b23 | 1404 | u8 lr; |
e8b29224 | 1405 | int err; |
455a7b23 | 1406 | |
455a7b23 SB |
1407 | lr = setup->session.opal_key.lr; |
1408 | err = build_locking_range(uid, sizeof(uid), lr); | |
1409 | if (err) | |
1410 | return err; | |
1411 | ||
1412 | if (lr == 0) | |
1413 | err = enable_global_lr(dev, uid, setup); | |
1414 | else { | |
e8b29224 | 1415 | err = cmd_start(dev, uid, opalmethod[OPAL_SET]); |
455a7b23 | 1416 | |
455a7b23 SB |
1417 | add_token_u8(&err, dev, OPAL_STARTNAME); |
1418 | add_token_u8(&err, dev, OPAL_VALUES); | |
1419 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1420 | ||
1421 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
372be408 | 1422 | add_token_u8(&err, dev, OPAL_RANGESTART); |
455a7b23 SB |
1423 | add_token_u64(&err, dev, setup->range_start); |
1424 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1425 | ||
1426 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
372be408 | 1427 | add_token_u8(&err, dev, OPAL_RANGELENGTH); |
455a7b23 SB |
1428 | add_token_u64(&err, dev, setup->range_length); |
1429 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1430 | ||
1431 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
372be408 | 1432 | add_token_u8(&err, dev, OPAL_READLOCKENABLED); |
455a7b23 SB |
1433 | add_token_u64(&err, dev, !!setup->RLE); |
1434 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1435 | ||
1436 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
372be408 | 1437 | add_token_u8(&err, dev, OPAL_WRITELOCKENABLED); |
455a7b23 SB |
1438 | add_token_u64(&err, dev, !!setup->WLE); |
1439 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1440 | ||
1441 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1442 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
455a7b23 SB |
1443 | } |
1444 | if (err) { | |
591c59d1 | 1445 | pr_debug("Error building Setup Locking range command.\n"); |
455a7b23 | 1446 | return err; |
455a7b23 SB |
1447 | } |
1448 | ||
1449 | return finalize_and_send(dev, parse_and_check_status); | |
1450 | } | |
1451 | ||
4c4dd04e OK |
1452 | static int response_get_column(const struct parsed_resp *resp, |
1453 | int *iter, | |
1454 | u8 column, | |
1455 | u64 *value) | |
1456 | { | |
1457 | const struct opal_resp_tok *tok; | |
1458 | int n = *iter; | |
1459 | u64 val; | |
1460 | ||
1461 | tok = response_get_token(resp, n); | |
1462 | if (IS_ERR(tok)) | |
1463 | return PTR_ERR(tok); | |
1464 | ||
1465 | if (!response_token_matches(tok, OPAL_STARTNAME)) { | |
1466 | pr_debug("Unexpected response token type %d.\n", n); | |
1467 | return OPAL_INVAL_PARAM; | |
1468 | } | |
1469 | n++; | |
1470 | ||
1471 | if (response_get_u64(resp, n) != column) { | |
1472 | pr_debug("Token %d does not match expected column %u.\n", | |
1473 | n, column); | |
1474 | return OPAL_INVAL_PARAM; | |
1475 | } | |
1476 | n++; | |
1477 | ||
1478 | val = response_get_u64(resp, n); | |
1479 | n++; | |
1480 | ||
1481 | tok = response_get_token(resp, n); | |
1482 | if (IS_ERR(tok)) | |
1483 | return PTR_ERR(tok); | |
1484 | ||
1485 | if (!response_token_matches(tok, OPAL_ENDNAME)) { | |
1486 | pr_debug("Unexpected response token type %d.\n", n); | |
1487 | return OPAL_INVAL_PARAM; | |
1488 | } | |
1489 | n++; | |
1490 | ||
1491 | *value = val; | |
1492 | *iter = n; | |
1493 | ||
1494 | return 0; | |
1495 | } | |
1496 | ||
1497 | static int locking_range_status(struct opal_dev *dev, void *data) | |
1498 | { | |
1499 | u8 lr_buffer[OPAL_UID_LENGTH]; | |
1500 | u64 resp; | |
1501 | bool rlocked, wlocked; | |
1502 | int err, tok_n = 2; | |
1503 | struct opal_lr_status *lrst = data; | |
1504 | ||
1505 | err = build_locking_range(lr_buffer, sizeof(lr_buffer), | |
1506 | lrst->session.opal_key.lr); | |
1507 | if (err) | |
1508 | return err; | |
1509 | ||
1510 | err = generic_get_columns(dev, lr_buffer, OPAL_RANGESTART, | |
1511 | OPAL_WRITELOCKED); | |
1512 | if (err) { | |
1513 | pr_debug("Couldn't get lr %u table columns %d to %d.\n", | |
1514 | lrst->session.opal_key.lr, OPAL_RANGESTART, | |
1515 | OPAL_WRITELOCKED); | |
1516 | return err; | |
1517 | } | |
1518 | ||
1519 | /* range start */ | |
1520 | err = response_get_column(&dev->parsed, &tok_n, OPAL_RANGESTART, | |
1521 | &lrst->range_start); | |
1522 | if (err) | |
1523 | return err; | |
1524 | ||
1525 | /* range length */ | |
1526 | err = response_get_column(&dev->parsed, &tok_n, OPAL_RANGELENGTH, | |
1527 | &lrst->range_length); | |
1528 | if (err) | |
1529 | return err; | |
1530 | ||
1531 | /* RLE */ | |
1532 | err = response_get_column(&dev->parsed, &tok_n, OPAL_READLOCKENABLED, | |
1533 | &resp); | |
1534 | if (err) | |
1535 | return err; | |
1536 | ||
1537 | lrst->RLE = !!resp; | |
1538 | ||
1539 | /* WLE */ | |
1540 | err = response_get_column(&dev->parsed, &tok_n, OPAL_WRITELOCKENABLED, | |
1541 | &resp); | |
1542 | if (err) | |
1543 | return err; | |
1544 | ||
1545 | lrst->WLE = !!resp; | |
1546 | ||
1547 | /* read locked */ | |
1548 | err = response_get_column(&dev->parsed, &tok_n, OPAL_READLOCKED, &resp); | |
1549 | if (err) | |
1550 | return err; | |
1551 | ||
1552 | rlocked = !!resp; | |
1553 | ||
1554 | /* write locked */ | |
1555 | err = response_get_column(&dev->parsed, &tok_n, OPAL_WRITELOCKED, &resp); | |
1556 | if (err) | |
1557 | return err; | |
1558 | ||
1559 | wlocked = !!resp; | |
1560 | ||
1561 | /* opal_lock_state can not map 'read locked' only state. */ | |
1562 | lrst->l_state = OPAL_RW; | |
1563 | if (rlocked && wlocked) | |
1564 | lrst->l_state = OPAL_LK; | |
1565 | else if (wlocked) | |
1566 | lrst->l_state = OPAL_RO; | |
1567 | else if (rlocked) { | |
1568 | pr_debug("Can not report read locked only state.\n"); | |
1569 | return -EINVAL; | |
1570 | } | |
1571 | ||
1572 | return 0; | |
1573 | } | |
1574 | ||
455a7b23 SB |
1575 | static int start_generic_opal_session(struct opal_dev *dev, |
1576 | enum opal_uid auth, | |
1577 | enum opal_uid sp_type, | |
1578 | const char *key, | |
1579 | u8 key_len) | |
1580 | { | |
1581 | u32 hsn; | |
e8b29224 | 1582 | int err; |
455a7b23 | 1583 | |
591c59d1 | 1584 | if (key == NULL && auth != OPAL_ANYBODY_UID) |
455a7b23 | 1585 | return OPAL_INVAL_PARAM; |
455a7b23 | 1586 | |
455a7b23 | 1587 | hsn = GENERIC_HOST_SESSION_NUM; |
e8b29224 DK |
1588 | err = cmd_start(dev, opaluid[OPAL_SMUID_UID], |
1589 | opalmethod[OPAL_STARTSESSION]); | |
455a7b23 | 1590 | |
455a7b23 SB |
1591 | add_token_u64(&err, dev, hsn); |
1592 | add_token_bytestring(&err, dev, opaluid[sp_type], OPAL_UID_LENGTH); | |
1593 | add_token_u8(&err, dev, 1); | |
1594 | ||
1595 | switch (auth) { | |
1596 | case OPAL_ANYBODY_UID: | |
455a7b23 SB |
1597 | break; |
1598 | case OPAL_ADMIN1_UID: | |
1599 | case OPAL_SID_UID: | |
5e4c7cf6 | 1600 | case OPAL_PSID_UID: |
455a7b23 SB |
1601 | add_token_u8(&err, dev, OPAL_STARTNAME); |
1602 | add_token_u8(&err, dev, 0); /* HostChallenge */ | |
1603 | add_token_bytestring(&err, dev, key, key_len); | |
1604 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1605 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1606 | add_token_u8(&err, dev, 3); /* HostSignAuth */ | |
1607 | add_token_bytestring(&err, dev, opaluid[auth], | |
1608 | OPAL_UID_LENGTH); | |
1609 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
455a7b23 SB |
1610 | break; |
1611 | default: | |
591c59d1 | 1612 | pr_debug("Cannot start Admin SP session with auth %d\n", auth); |
455a7b23 SB |
1613 | return OPAL_INVAL_PARAM; |
1614 | } | |
1615 | ||
1616 | if (err) { | |
591c59d1 | 1617 | pr_debug("Error building start adminsp session command.\n"); |
455a7b23 SB |
1618 | return err; |
1619 | } | |
1620 | ||
1621 | return finalize_and_send(dev, start_opal_session_cont); | |
1622 | } | |
1623 | ||
eed64951 | 1624 | static int start_anybodyASP_opal_session(struct opal_dev *dev, void *data) |
455a7b23 SB |
1625 | { |
1626 | return start_generic_opal_session(dev, OPAL_ANYBODY_UID, | |
1627 | OPAL_ADMINSP_UID, NULL, 0); | |
1628 | } | |
1629 | ||
eed64951 | 1630 | static int start_SIDASP_opal_session(struct opal_dev *dev, void *data) |
455a7b23 SB |
1631 | { |
1632 | int ret; | |
1633 | const u8 *key = dev->prev_data; | |
455a7b23 SB |
1634 | |
1635 | if (!key) { | |
eed64951 | 1636 | const struct opal_key *okey = data; |
1e815b33 | 1637 | |
455a7b23 SB |
1638 | ret = start_generic_opal_session(dev, OPAL_SID_UID, |
1639 | OPAL_ADMINSP_UID, | |
1640 | okey->key, | |
1641 | okey->key_len); | |
1642 | } else { | |
1643 | ret = start_generic_opal_session(dev, OPAL_SID_UID, | |
1644 | OPAL_ADMINSP_UID, | |
1645 | key, dev->prev_d_len); | |
1646 | kfree(key); | |
1647 | dev->prev_data = NULL; | |
1648 | } | |
5cc23ed7 | 1649 | |
455a7b23 SB |
1650 | return ret; |
1651 | } | |
1652 | ||
eed64951 | 1653 | static int start_admin1LSP_opal_session(struct opal_dev *dev, void *data) |
455a7b23 | 1654 | { |
eed64951 | 1655 | struct opal_key *key = data; |
1e815b33 | 1656 | |
455a7b23 SB |
1657 | return start_generic_opal_session(dev, OPAL_ADMIN1_UID, |
1658 | OPAL_LOCKINGSP_UID, | |
1659 | key->key, key->key_len); | |
1660 | } | |
1661 | ||
5e4c7cf6 RR |
1662 | static int start_PSID_opal_session(struct opal_dev *dev, void *data) |
1663 | { | |
1664 | const struct opal_key *okey = data; | |
1665 | ||
1666 | return start_generic_opal_session(dev, OPAL_PSID_UID, | |
1667 | OPAL_ADMINSP_UID, | |
1668 | okey->key, | |
1669 | okey->key_len); | |
1670 | } | |
1671 | ||
eed64951 | 1672 | static int start_auth_opal_session(struct opal_dev *dev, void *data) |
455a7b23 | 1673 | { |
eed64951 | 1674 | struct opal_session_info *session = data; |
455a7b23 | 1675 | u8 lk_ul_user[OPAL_UID_LENGTH]; |
eed64951 | 1676 | size_t keylen = session->opal_key.key_len; |
455a7b23 SB |
1677 | int err = 0; |
1678 | ||
455a7b23 SB |
1679 | u8 *key = session->opal_key.key; |
1680 | u32 hsn = GENERIC_HOST_SESSION_NUM; | |
1681 | ||
e8b29224 | 1682 | if (session->sum) |
455a7b23 SB |
1683 | err = build_locking_user(lk_ul_user, sizeof(lk_ul_user), |
1684 | session->opal_key.lr); | |
e8b29224 | 1685 | else if (session->who != OPAL_ADMIN1 && !session->sum) |
455a7b23 SB |
1686 | err = build_locking_user(lk_ul_user, sizeof(lk_ul_user), |
1687 | session->who - 1); | |
e8b29224 | 1688 | else |
455a7b23 SB |
1689 | memcpy(lk_ul_user, opaluid[OPAL_ADMIN1_UID], OPAL_UID_LENGTH); |
1690 | ||
e8b29224 DK |
1691 | if (err) |
1692 | return err; | |
1693 | ||
1694 | err = cmd_start(dev, opaluid[OPAL_SMUID_UID], | |
1695 | opalmethod[OPAL_STARTSESSION]); | |
455a7b23 | 1696 | |
455a7b23 SB |
1697 | add_token_u64(&err, dev, hsn); |
1698 | add_token_bytestring(&err, dev, opaluid[OPAL_LOCKINGSP_UID], | |
1699 | OPAL_UID_LENGTH); | |
1700 | add_token_u8(&err, dev, 1); | |
1701 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1702 | add_token_u8(&err, dev, 0); | |
1703 | add_token_bytestring(&err, dev, key, keylen); | |
1704 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1705 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1706 | add_token_u8(&err, dev, 3); | |
1707 | add_token_bytestring(&err, dev, lk_ul_user, OPAL_UID_LENGTH); | |
1708 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
455a7b23 SB |
1709 | |
1710 | if (err) { | |
591c59d1 | 1711 | pr_debug("Error building STARTSESSION command.\n"); |
455a7b23 SB |
1712 | return err; |
1713 | } | |
1714 | ||
1715 | return finalize_and_send(dev, start_opal_session_cont); | |
1716 | } | |
1717 | ||
eed64951 | 1718 | static int revert_tper(struct opal_dev *dev, void *data) |
455a7b23 | 1719 | { |
e8b29224 | 1720 | int err; |
455a7b23 | 1721 | |
e8b29224 DK |
1722 | err = cmd_start(dev, opaluid[OPAL_ADMINSP_UID], |
1723 | opalmethod[OPAL_REVERT]); | |
455a7b23 | 1724 | if (err) { |
591c59d1 | 1725 | pr_debug("Error building REVERT TPER command.\n"); |
455a7b23 SB |
1726 | return err; |
1727 | } | |
1728 | ||
1729 | return finalize_and_send(dev, parse_and_check_status); | |
1730 | } | |
1731 | ||
eed64951 | 1732 | static int internal_activate_user(struct opal_dev *dev, void *data) |
455a7b23 | 1733 | { |
eed64951 | 1734 | struct opal_session_info *session = data; |
455a7b23 | 1735 | u8 uid[OPAL_UID_LENGTH]; |
e8b29224 | 1736 | int err; |
455a7b23 SB |
1737 | |
1738 | memcpy(uid, opaluid[OPAL_USER1_UID], OPAL_UID_LENGTH); | |
1739 | uid[7] = session->who; | |
1740 | ||
e8b29224 | 1741 | err = cmd_start(dev, uid, opalmethod[OPAL_SET]); |
455a7b23 SB |
1742 | add_token_u8(&err, dev, OPAL_STARTNAME); |
1743 | add_token_u8(&err, dev, OPAL_VALUES); | |
1744 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1745 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1746 | add_token_u8(&err, dev, 5); /* Enabled */ | |
1747 | add_token_u8(&err, dev, OPAL_TRUE); | |
1748 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1749 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1750 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
455a7b23 SB |
1751 | |
1752 | if (err) { | |
591c59d1 | 1753 | pr_debug("Error building Activate UserN command.\n"); |
455a7b23 SB |
1754 | return err; |
1755 | } | |
1756 | ||
1757 | return finalize_and_send(dev, parse_and_check_status); | |
1758 | } | |
1759 | ||
eed64951 | 1760 | static int erase_locking_range(struct opal_dev *dev, void *data) |
455a7b23 | 1761 | { |
eed64951 | 1762 | struct opal_session_info *session = data; |
455a7b23 | 1763 | u8 uid[OPAL_UID_LENGTH]; |
e8b29224 | 1764 | int err; |
455a7b23 SB |
1765 | |
1766 | if (build_locking_range(uid, sizeof(uid), session->opal_key.lr) < 0) | |
1767 | return -ERANGE; | |
1768 | ||
e8b29224 | 1769 | err = cmd_start(dev, uid, opalmethod[OPAL_ERASE]); |
455a7b23 SB |
1770 | |
1771 | if (err) { | |
591c59d1 | 1772 | pr_debug("Error building Erase Locking Range Command.\n"); |
455a7b23 SB |
1773 | return err; |
1774 | } | |
5cc23ed7 | 1775 | |
455a7b23 SB |
1776 | return finalize_and_send(dev, parse_and_check_status); |
1777 | } | |
1778 | ||
eed64951 | 1779 | static int set_mbr_done(struct opal_dev *dev, void *data) |
455a7b23 | 1780 | { |
eed64951 | 1781 | u8 *mbr_done_tf = data; |
e8b29224 | 1782 | int err; |
455a7b23 | 1783 | |
e8b29224 DK |
1784 | err = cmd_start(dev, opaluid[OPAL_MBRCONTROL], |
1785 | opalmethod[OPAL_SET]); | |
455a7b23 | 1786 | |
455a7b23 SB |
1787 | add_token_u8(&err, dev, OPAL_STARTNAME); |
1788 | add_token_u8(&err, dev, OPAL_VALUES); | |
1789 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1790 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
372be408 | 1791 | add_token_u8(&err, dev, OPAL_MBRDONE); |
eed64951 | 1792 | add_token_u8(&err, dev, *mbr_done_tf); /* Done T or F */ |
455a7b23 SB |
1793 | add_token_u8(&err, dev, OPAL_ENDNAME); |
1794 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1795 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
455a7b23 SB |
1796 | |
1797 | if (err) { | |
591c59d1 | 1798 | pr_debug("Error Building set MBR Done command\n"); |
455a7b23 SB |
1799 | return err; |
1800 | } | |
1801 | ||
1802 | return finalize_and_send(dev, parse_and_check_status); | |
1803 | } | |
1804 | ||
eed64951 | 1805 | static int set_mbr_enable_disable(struct opal_dev *dev, void *data) |
455a7b23 | 1806 | { |
eed64951 | 1807 | u8 *mbr_en_dis = data; |
e8b29224 | 1808 | int err; |
455a7b23 | 1809 | |
e8b29224 DK |
1810 | err = cmd_start(dev, opaluid[OPAL_MBRCONTROL], |
1811 | opalmethod[OPAL_SET]); | |
455a7b23 | 1812 | |
455a7b23 SB |
1813 | add_token_u8(&err, dev, OPAL_STARTNAME); |
1814 | add_token_u8(&err, dev, OPAL_VALUES); | |
1815 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1816 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
372be408 | 1817 | add_token_u8(&err, dev, OPAL_MBRENABLE); |
eed64951 | 1818 | add_token_u8(&err, dev, *mbr_en_dis); |
455a7b23 SB |
1819 | add_token_u8(&err, dev, OPAL_ENDNAME); |
1820 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1821 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
455a7b23 SB |
1822 | |
1823 | if (err) { | |
591c59d1 | 1824 | pr_debug("Error Building set MBR done command\n"); |
455a7b23 SB |
1825 | return err; |
1826 | } | |
1827 | ||
1828 | return finalize_and_send(dev, parse_and_check_status); | |
1829 | } | |
1830 | ||
a9b25b4c JR |
1831 | static int write_shadow_mbr(struct opal_dev *dev, void *data) |
1832 | { | |
1833 | struct opal_shadow_mbr *shadow = data; | |
a9b25b4c | 1834 | |
3495ea1b RR |
1835 | return generic_table_write_data(dev, shadow->data, shadow->offset, |
1836 | shadow->size, opaluid[OPAL_MBR]); | |
a9b25b4c JR |
1837 | } |
1838 | ||
455a7b23 SB |
1839 | static int generic_pw_cmd(u8 *key, size_t key_len, u8 *cpin_uid, |
1840 | struct opal_dev *dev) | |
1841 | { | |
e8b29224 | 1842 | int err; |
455a7b23 | 1843 | |
e8b29224 | 1844 | err = cmd_start(dev, cpin_uid, opalmethod[OPAL_SET]); |
455a7b23 | 1845 | |
455a7b23 SB |
1846 | add_token_u8(&err, dev, OPAL_STARTNAME); |
1847 | add_token_u8(&err, dev, OPAL_VALUES); | |
1848 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1849 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
372be408 | 1850 | add_token_u8(&err, dev, OPAL_PIN); |
455a7b23 SB |
1851 | add_token_bytestring(&err, dev, key, key_len); |
1852 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1853 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1854 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
455a7b23 SB |
1855 | |
1856 | return err; | |
1857 | } | |
1858 | ||
eed64951 | 1859 | static int set_new_pw(struct opal_dev *dev, void *data) |
455a7b23 SB |
1860 | { |
1861 | u8 cpin_uid[OPAL_UID_LENGTH]; | |
eed64951 | 1862 | struct opal_session_info *usr = data; |
455a7b23 SB |
1863 | |
1864 | memcpy(cpin_uid, opaluid[OPAL_C_PIN_ADMIN1], OPAL_UID_LENGTH); | |
1865 | ||
1866 | if (usr->who != OPAL_ADMIN1) { | |
1867 | cpin_uid[5] = 0x03; | |
1868 | if (usr->sum) | |
1869 | cpin_uid[7] = usr->opal_key.lr + 1; | |
1870 | else | |
1871 | cpin_uid[7] = usr->who; | |
1872 | } | |
1873 | ||
1874 | if (generic_pw_cmd(usr->opal_key.key, usr->opal_key.key_len, | |
1875 | cpin_uid, dev)) { | |
591c59d1 | 1876 | pr_debug("Error building set password command.\n"); |
455a7b23 SB |
1877 | return -ERANGE; |
1878 | } | |
1879 | ||
1880 | return finalize_and_send(dev, parse_and_check_status); | |
1881 | } | |
1882 | ||
eed64951 | 1883 | static int set_sid_cpin_pin(struct opal_dev *dev, void *data) |
455a7b23 SB |
1884 | { |
1885 | u8 cpin_uid[OPAL_UID_LENGTH]; | |
eed64951 | 1886 | struct opal_key *key = data; |
455a7b23 SB |
1887 | |
1888 | memcpy(cpin_uid, opaluid[OPAL_C_PIN_SID], OPAL_UID_LENGTH); | |
1889 | ||
1890 | if (generic_pw_cmd(key->key, key->key_len, cpin_uid, dev)) { | |
591c59d1 | 1891 | pr_debug("Error building Set SID cpin\n"); |
455a7b23 SB |
1892 | return -ERANGE; |
1893 | } | |
1894 | return finalize_and_send(dev, parse_and_check_status); | |
1895 | } | |
1896 | ||
175b6544 OK |
1897 | static void add_authority_object_ref(int *err, |
1898 | struct opal_dev *dev, | |
1899 | const u8 *uid, | |
1900 | size_t uid_len) | |
1901 | { | |
1902 | add_token_u8(err, dev, OPAL_STARTNAME); | |
1903 | add_token_bytestring(err, dev, | |
1904 | opaluid[OPAL_HALF_UID_AUTHORITY_OBJ_REF], | |
1905 | OPAL_UID_LENGTH/2); | |
1906 | add_token_bytestring(err, dev, uid, uid_len); | |
1907 | add_token_u8(err, dev, OPAL_ENDNAME); | |
1908 | } | |
1909 | ||
1910 | static void add_boolean_object_ref(int *err, | |
1911 | struct opal_dev *dev, | |
1912 | u8 boolean_op) | |
1913 | { | |
1914 | add_token_u8(err, dev, OPAL_STARTNAME); | |
1915 | add_token_bytestring(err, dev, opaluid[OPAL_HALF_UID_BOOLEAN_ACE], | |
1916 | OPAL_UID_LENGTH/2); | |
1917 | add_token_u8(err, dev, boolean_op); | |
1918 | add_token_u8(err, dev, OPAL_ENDNAME); | |
1919 | } | |
1920 | ||
1921 | static int set_lr_boolean_ace(struct opal_dev *dev, | |
1922 | unsigned int opal_uid, | |
1923 | u8 lr, | |
1924 | const u8 *users, | |
1925 | size_t users_len) | |
455a7b23 SB |
1926 | { |
1927 | u8 lr_buffer[OPAL_UID_LENGTH]; | |
1928 | u8 user_uid[OPAL_UID_LENGTH]; | |
175b6544 | 1929 | u8 u; |
e8b29224 | 1930 | int err; |
455a7b23 | 1931 | |
175b6544 OK |
1932 | memcpy(lr_buffer, opaluid[opal_uid], OPAL_UID_LENGTH); |
1933 | lr_buffer[7] = lr; | |
455a7b23 | 1934 | |
e8b29224 | 1935 | err = cmd_start(dev, lr_buffer, opalmethod[OPAL_SET]); |
455a7b23 | 1936 | |
455a7b23 SB |
1937 | add_token_u8(&err, dev, OPAL_STARTNAME); |
1938 | add_token_u8(&err, dev, OPAL_VALUES); | |
1939 | ||
1940 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1941 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
1942 | add_token_u8(&err, dev, 3); | |
1943 | ||
1944 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
1945 | ||
175b6544 OK |
1946 | for (u = 0; u < users_len; u++) { |
1947 | if (users[u] == OPAL_ADMIN1) | |
1948 | memcpy(user_uid, opaluid[OPAL_ADMIN1_UID], | |
1949 | OPAL_UID_LENGTH); | |
1950 | else { | |
1951 | memcpy(user_uid, opaluid[OPAL_USER1_UID], | |
1952 | OPAL_UID_LENGTH); | |
1953 | user_uid[7] = users[u]; | |
1954 | } | |
1955 | ||
1956 | add_authority_object_ref(&err, dev, user_uid, sizeof(user_uid)); | |
455a7b23 | 1957 | |
175b6544 OK |
1958 | /* |
1959 | * Add boolean operator in postfix only with | |
1960 | * two or more authorities being added in ACE | |
1961 | * expresion. | |
1962 | * */ | |
1963 | if (u > 0) | |
1964 | add_boolean_object_ref(&err, dev, OPAL_BOOLEAN_OR); | |
1965 | } | |
455a7b23 | 1966 | |
455a7b23 SB |
1967 | add_token_u8(&err, dev, OPAL_ENDLIST); |
1968 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
1969 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
1970 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
455a7b23 | 1971 | |
175b6544 OK |
1972 | return err; |
1973 | } | |
1974 | ||
1975 | static int add_user_to_lr(struct opal_dev *dev, void *data) | |
1976 | { | |
1977 | int err; | |
1978 | struct opal_lock_unlock *lkul = data; | |
1979 | const u8 users[] = { | |
1980 | lkul->session.who | |
1981 | }; | |
1982 | ||
1983 | err = set_lr_boolean_ace(dev, | |
1984 | lkul->l_state == OPAL_RW ? | |
1985 | OPAL_LOCKINGRANGE_ACE_WRLOCKED : | |
1986 | OPAL_LOCKINGRANGE_ACE_RDLOCKED, | |
1987 | lkul->session.opal_key.lr, users, | |
1988 | ARRAY_SIZE(users)); | |
455a7b23 | 1989 | if (err) { |
591c59d1 | 1990 | pr_debug("Error building add user to locking range command.\n"); |
455a7b23 SB |
1991 | return err; |
1992 | } | |
1993 | ||
1994 | return finalize_and_send(dev, parse_and_check_status); | |
1995 | } | |
1996 | ||
8be19a02 OK |
1997 | static int add_user_to_lr_ace(struct opal_dev *dev, void *data) |
1998 | { | |
1999 | int err; | |
2000 | struct opal_lock_unlock *lkul = data; | |
2001 | const u8 users[] = { | |
2002 | OPAL_ADMIN1, | |
2003 | lkul->session.who | |
2004 | }; | |
2005 | ||
2006 | err = set_lr_boolean_ace(dev, OPAL_LOCKINGRANGE_ACE_START_TO_KEY, | |
2007 | lkul->session.opal_key.lr, users, | |
2008 | ARRAY_SIZE(users)); | |
2009 | ||
2010 | if (err) { | |
2011 | pr_debug("Error building add user to locking ranges ACEs.\n"); | |
2012 | return err; | |
2013 | } | |
2014 | ||
2015 | return finalize_and_send(dev, parse_and_check_status); | |
2016 | } | |
2017 | ||
eed64951 | 2018 | static int lock_unlock_locking_range(struct opal_dev *dev, void *data) |
455a7b23 SB |
2019 | { |
2020 | u8 lr_buffer[OPAL_UID_LENGTH]; | |
eed64951 | 2021 | struct opal_lock_unlock *lkul = data; |
455a7b23 SB |
2022 | u8 read_locked = 1, write_locked = 1; |
2023 | int err = 0; | |
2024 | ||
455a7b23 SB |
2025 | if (build_locking_range(lr_buffer, sizeof(lr_buffer), |
2026 | lkul->session.opal_key.lr) < 0) | |
2027 | return -ERANGE; | |
2028 | ||
2029 | switch (lkul->l_state) { | |
2030 | case OPAL_RO: | |
2031 | read_locked = 0; | |
2032 | write_locked = 1; | |
2033 | break; | |
2034 | case OPAL_RW: | |
2035 | read_locked = 0; | |
2036 | write_locked = 0; | |
2037 | break; | |
2038 | case OPAL_LK: | |
1e815b33 | 2039 | /* vars are initialized to locked */ |
455a7b23 SB |
2040 | break; |
2041 | default: | |
591c59d1 | 2042 | pr_debug("Tried to set an invalid locking state... returning to uland\n"); |
455a7b23 SB |
2043 | return OPAL_INVAL_PARAM; |
2044 | } | |
2045 | ||
e8b29224 DK |
2046 | err = cmd_start(dev, lr_buffer, opalmethod[OPAL_SET]); |
2047 | ||
455a7b23 SB |
2048 | add_token_u8(&err, dev, OPAL_STARTNAME); |
2049 | add_token_u8(&err, dev, OPAL_VALUES); | |
2050 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
2051 | ||
2052 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
2053 | add_token_u8(&err, dev, OPAL_READLOCKED); | |
2054 | add_token_u8(&err, dev, read_locked); | |
2055 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
2056 | ||
2057 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
2058 | add_token_u8(&err, dev, OPAL_WRITELOCKED); | |
2059 | add_token_u8(&err, dev, write_locked); | |
2060 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
2061 | ||
2062 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
2063 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
455a7b23 SB |
2064 | |
2065 | if (err) { | |
591c59d1 | 2066 | pr_debug("Error building SET command.\n"); |
455a7b23 SB |
2067 | return err; |
2068 | } | |
5cc23ed7 | 2069 | |
455a7b23 SB |
2070 | return finalize_and_send(dev, parse_and_check_status); |
2071 | } | |
2072 | ||
2073 | ||
eed64951 | 2074 | static int lock_unlock_locking_range_sum(struct opal_dev *dev, void *data) |
455a7b23 SB |
2075 | { |
2076 | u8 lr_buffer[OPAL_UID_LENGTH]; | |
2077 | u8 read_locked = 1, write_locked = 1; | |
eed64951 | 2078 | struct opal_lock_unlock *lkul = data; |
455a7b23 SB |
2079 | int ret; |
2080 | ||
2081 | clear_opal_cmd(dev); | |
2082 | set_comid(dev, dev->comid); | |
2083 | ||
455a7b23 SB |
2084 | if (build_locking_range(lr_buffer, sizeof(lr_buffer), |
2085 | lkul->session.opal_key.lr) < 0) | |
2086 | return -ERANGE; | |
2087 | ||
2088 | switch (lkul->l_state) { | |
2089 | case OPAL_RO: | |
2090 | read_locked = 0; | |
2091 | write_locked = 1; | |
2092 | break; | |
2093 | case OPAL_RW: | |
2094 | read_locked = 0; | |
2095 | write_locked = 0; | |
2096 | break; | |
2097 | case OPAL_LK: | |
1e815b33 | 2098 | /* vars are initialized to locked */ |
455a7b23 SB |
2099 | break; |
2100 | default: | |
591c59d1 | 2101 | pr_debug("Tried to set an invalid locking state.\n"); |
455a7b23 SB |
2102 | return OPAL_INVAL_PARAM; |
2103 | } | |
2104 | ret = generic_lr_enable_disable(dev, lr_buffer, 1, 1, | |
2105 | read_locked, write_locked); | |
2106 | ||
2107 | if (ret < 0) { | |
591c59d1 | 2108 | pr_debug("Error building SET command.\n"); |
455a7b23 SB |
2109 | return ret; |
2110 | } | |
5cc23ed7 | 2111 | |
455a7b23 SB |
2112 | return finalize_and_send(dev, parse_and_check_status); |
2113 | } | |
2114 | ||
eed64951 | 2115 | static int activate_lsp(struct opal_dev *dev, void *data) |
455a7b23 | 2116 | { |
eed64951 | 2117 | struct opal_lr_act *opal_act = data; |
455a7b23 | 2118 | u8 user_lr[OPAL_UID_LENGTH]; |
e8b29224 | 2119 | int err, i; |
455a7b23 | 2120 | |
e8b29224 DK |
2121 | err = cmd_start(dev, opaluid[OPAL_LOCKINGSP_UID], |
2122 | opalmethod[OPAL_ACTIVATE]); | |
455a7b23 SB |
2123 | |
2124 | if (opal_act->sum) { | |
2125 | err = build_locking_range(user_lr, sizeof(user_lr), | |
2126 | opal_act->lr[0]); | |
2127 | if (err) | |
2128 | return err; | |
2129 | ||
455a7b23 | 2130 | add_token_u8(&err, dev, OPAL_STARTNAME); |
c6da429e | 2131 | add_token_u64(&err, dev, OPAL_SUM_SET_LIST); |
455a7b23 SB |
2132 | |
2133 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
2134 | add_token_bytestring(&err, dev, user_lr, OPAL_UID_LENGTH); | |
2135 | for (i = 1; i < opal_act->num_lrs; i++) { | |
2136 | user_lr[7] = opal_act->lr[i]; | |
2137 | add_token_bytestring(&err, dev, user_lr, OPAL_UID_LENGTH); | |
2138 | } | |
2139 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
2140 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
455a7b23 SB |
2141 | } |
2142 | ||
2143 | if (err) { | |
591c59d1 | 2144 | pr_debug("Error building Activate LockingSP command.\n"); |
455a7b23 SB |
2145 | return err; |
2146 | } | |
2147 | ||
2148 | return finalize_and_send(dev, parse_and_check_status); | |
2149 | } | |
2150 | ||
3fff234b DK |
2151 | /* Determine if we're in the Manufactured Inactive or Active state */ |
2152 | static int get_lsp_lifecycle(struct opal_dev *dev, void *data) | |
455a7b23 SB |
2153 | { |
2154 | u8 lc_status; | |
3fff234b | 2155 | int err; |
455a7b23 | 2156 | |
3fff234b DK |
2157 | err = generic_get_column(dev, opaluid[OPAL_LOCKINGSP_UID], |
2158 | OPAL_LIFECYCLE); | |
2159 | if (err) | |
2160 | return err; | |
455a7b23 SB |
2161 | |
2162 | lc_status = response_get_u64(&dev->parsed, 4); | |
1e815b33 | 2163 | /* 0x08 is Manufactured Inactive */ |
455a7b23 SB |
2164 | /* 0x09 is Manufactured */ |
2165 | if (lc_status != OPAL_MANUFACTURED_INACTIVE) { | |
591c59d1 | 2166 | pr_debug("Couldn't determine the status of the Lifecycle state\n"); |
455a7b23 SB |
2167 | return -ENODEV; |
2168 | } | |
2169 | ||
2170 | return 0; | |
2171 | } | |
2172 | ||
3fff234b | 2173 | static int get_msid_cpin_pin(struct opal_dev *dev, void *data) |
455a7b23 SB |
2174 | { |
2175 | const char *msid_pin; | |
2176 | size_t strlen; | |
3fff234b | 2177 | int err; |
455a7b23 | 2178 | |
3fff234b DK |
2179 | err = generic_get_column(dev, opaluid[OPAL_C_PIN_MSID], OPAL_PIN); |
2180 | if (err) | |
2181 | return err; | |
455a7b23 SB |
2182 | |
2183 | strlen = response_get_string(&dev->parsed, 4, &msid_pin); | |
2184 | if (!msid_pin) { | |
3fff234b | 2185 | pr_debug("Couldn't extract MSID_CPIN from response\n"); |
455a7b23 SB |
2186 | return OPAL_INVAL_PARAM; |
2187 | } | |
2188 | ||
2189 | dev->prev_data = kmemdup(msid_pin, strlen, GFP_KERNEL); | |
2190 | if (!dev->prev_data) | |
2191 | return -ENOMEM; | |
2192 | ||
2193 | dev->prev_d_len = strlen; | |
2194 | ||
2195 | return 0; | |
2196 | } | |
2197 | ||
51f421c8 RR |
2198 | static int write_table_data(struct opal_dev *dev, void *data) |
2199 | { | |
2200 | struct opal_read_write_table *write_tbl = data; | |
2201 | ||
2202 | return generic_table_write_data(dev, write_tbl->data, write_tbl->offset, | |
2203 | write_tbl->size, write_tbl->table_uid); | |
2204 | } | |
2205 | ||
2206 | static int read_table_data_cont(struct opal_dev *dev) | |
2207 | { | |
2208 | int err; | |
2209 | const char *data_read; | |
2210 | ||
2211 | err = parse_and_check_status(dev); | |
2212 | if (err) | |
2213 | return err; | |
2214 | ||
2215 | dev->prev_d_len = response_get_string(&dev->parsed, 1, &data_read); | |
2216 | dev->prev_data = (void *)data_read; | |
2217 | if (!dev->prev_data) { | |
2218 | pr_debug("%s: Couldn't read data from the table.\n", __func__); | |
2219 | return OPAL_INVAL_PARAM; | |
2220 | } | |
2221 | ||
2222 | return 0; | |
2223 | } | |
2224 | ||
2225 | /* | |
2226 | * IO_BUFFER_LENGTH = 2048 | |
2227 | * sizeof(header) = 56 | |
2228 | * No. of Token Bytes in the Response = 11 | |
2229 | * MAX size of data that can be carried in response buffer | |
2230 | * at a time is : 2048 - (56 + 11) = 1981 = 0x7BD. | |
2231 | */ | |
2232 | #define OPAL_MAX_READ_TABLE (0x7BD) | |
2233 | ||
2234 | static int read_table_data(struct opal_dev *dev, void *data) | |
2235 | { | |
2236 | struct opal_read_write_table *read_tbl = data; | |
2237 | int err; | |
2238 | size_t off = 0, max_read_size = OPAL_MAX_READ_TABLE; | |
2239 | u64 table_len, len; | |
2240 | u64 offset = read_tbl->offset, read_size = read_tbl->size - 1; | |
2241 | u8 __user *dst; | |
2242 | ||
2243 | err = generic_get_table_info(dev, read_tbl->table_uid, OPAL_TABLE_ROWS); | |
2244 | if (err) { | |
2245 | pr_debug("Couldn't get the table size\n"); | |
2246 | return err; | |
2247 | } | |
2248 | ||
2249 | table_len = response_get_u64(&dev->parsed, 4); | |
2250 | ||
2251 | /* Check if the user is trying to read from the table limits */ | |
2252 | if (read_size > table_len || offset > table_len - read_size) { | |
2253 | pr_debug("Read size exceeds the Table size limits (%llu vs. %llu)\n", | |
2254 | offset + read_size, table_len); | |
2255 | return -EINVAL; | |
2256 | } | |
2257 | ||
2258 | while (off < read_size) { | |
2259 | err = cmd_start(dev, read_tbl->table_uid, opalmethod[OPAL_GET]); | |
2260 | ||
2261 | add_token_u8(&err, dev, OPAL_STARTLIST); | |
2262 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
2263 | add_token_u8(&err, dev, OPAL_STARTROW); | |
2264 | add_token_u64(&err, dev, offset + off); /* start row value */ | |
2265 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
2266 | ||
2267 | add_token_u8(&err, dev, OPAL_STARTNAME); | |
2268 | add_token_u8(&err, dev, OPAL_ENDROW); | |
2269 | ||
2270 | len = min(max_read_size, (size_t)(read_size - off)); | |
2271 | add_token_u64(&err, dev, offset + off + len); /* end row value | |
2272 | */ | |
2273 | add_token_u8(&err, dev, OPAL_ENDNAME); | |
2274 | add_token_u8(&err, dev, OPAL_ENDLIST); | |
2275 | ||
2276 | if (err) { | |
2277 | pr_debug("Error building read table data command.\n"); | |
2278 | break; | |
2279 | } | |
2280 | ||
2281 | err = finalize_and_send(dev, read_table_data_cont); | |
2282 | if (err) | |
2283 | break; | |
2284 | ||
2285 | /* len+1: This includes the NULL terminator at the end*/ | |
2286 | if (dev->prev_d_len > len + 1) { | |
2287 | err = -EOVERFLOW; | |
2288 | break; | |
2289 | } | |
2290 | ||
2291 | dst = (u8 __user *)(uintptr_t)read_tbl->data; | |
2292 | if (copy_to_user(dst + off, dev->prev_data, dev->prev_d_len)) { | |
2293 | pr_debug("Error copying data to userspace\n"); | |
2294 | err = -EFAULT; | |
2295 | break; | |
2296 | } | |
2297 | dev->prev_data = NULL; | |
2298 | ||
2299 | off += len; | |
2300 | } | |
2301 | ||
2302 | return err; | |
2303 | } | |
2304 | ||
eed64951 | 2305 | static int end_opal_session(struct opal_dev *dev, void *data) |
455a7b23 SB |
2306 | { |
2307 | int err = 0; | |
2308 | ||
2309 | clear_opal_cmd(dev); | |
455a7b23 SB |
2310 | set_comid(dev, dev->comid); |
2311 | add_token_u8(&err, dev, OPAL_ENDOFSESSION); | |
455a7b23 | 2312 | |
eed64951 JD |
2313 | if (err < 0) |
2314 | return err; | |
5cc23ed7 | 2315 | |
455a7b23 SB |
2316 | return finalize_and_send(dev, end_session_cont); |
2317 | } | |
2318 | ||
2319 | static int end_opal_session_error(struct opal_dev *dev) | |
2320 | { | |
0af2648e DK |
2321 | const struct opal_step error_end_session = { |
2322 | end_opal_session, | |
455a7b23 | 2323 | }; |
5cc23ed7 | 2324 | |
0af2648e | 2325 | return execute_step(dev, &error_end_session, 0); |
455a7b23 SB |
2326 | } |
2327 | ||
3db87236 | 2328 | static inline void setup_opal_dev(struct opal_dev *dev) |
455a7b23 | 2329 | { |
455a7b23 SB |
2330 | dev->tsn = 0; |
2331 | dev->hsn = 0; | |
455a7b23 SB |
2332 | dev->prev_data = NULL; |
2333 | } | |
2334 | ||
2335 | static int check_opal_support(struct opal_dev *dev) | |
2336 | { | |
455a7b23 SB |
2337 | int ret; |
2338 | ||
2339 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2340 | setup_opal_dev(dev); |
0af2648e | 2341 | ret = opal_discovery0_step(dev); |
c6ea7060 | 2342 | if (!ret) |
2343 | dev->flags |= OPAL_FL_SUPPORTED; | |
455a7b23 | 2344 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2345 | |
455a7b23 SB |
2346 | return ret; |
2347 | } | |
2348 | ||
7d6d1578 SB |
2349 | static void clean_opal_dev(struct opal_dev *dev) |
2350 | { | |
2351 | ||
2352 | struct opal_suspend_data *suspend, *next; | |
2353 | ||
2354 | mutex_lock(&dev->dev_lock); | |
2355 | list_for_each_entry_safe(suspend, next, &dev->unlk_lst, node) { | |
2356 | list_del(&suspend->node); | |
2357 | kfree(suspend); | |
2358 | } | |
2359 | mutex_unlock(&dev->dev_lock); | |
2360 | } | |
2361 | ||
2362 | void free_opal_dev(struct opal_dev *dev) | |
2363 | { | |
2364 | if (!dev) | |
2365 | return; | |
5cc23ed7 | 2366 | |
7d6d1578 | 2367 | clean_opal_dev(dev); |
f829230d SS |
2368 | kfree(dev->resp); |
2369 | kfree(dev->cmd); | |
7d6d1578 SB |
2370 | kfree(dev); |
2371 | } | |
2372 | EXPORT_SYMBOL(free_opal_dev); | |
2373 | ||
4f1244c8 | 2374 | struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv) |
455a7b23 | 2375 | { |
4f1244c8 CH |
2376 | struct opal_dev *dev; |
2377 | ||
2378 | dev = kmalloc(sizeof(*dev), GFP_KERNEL); | |
2379 | if (!dev) | |
2380 | return NULL; | |
2381 | ||
f829230d SS |
2382 | /* |
2383 | * Presumably DMA-able buffers must be cache-aligned. Kmalloc makes | |
2384 | * sure the allocated buffer is DMA-safe in that regard. | |
2385 | */ | |
2386 | dev->cmd = kmalloc(IO_BUFFER_LENGTH, GFP_KERNEL); | |
2387 | if (!dev->cmd) | |
2388 | goto err_free_dev; | |
2389 | ||
2390 | dev->resp = kmalloc(IO_BUFFER_LENGTH, GFP_KERNEL); | |
2391 | if (!dev->resp) | |
2392 | goto err_free_cmd; | |
2393 | ||
4f1244c8 CH |
2394 | INIT_LIST_HEAD(&dev->unlk_lst); |
2395 | mutex_init(&dev->dev_lock); | |
c6ea7060 | 2396 | dev->flags = 0; |
4f1244c8 CH |
2397 | dev->data = data; |
2398 | dev->send_recv = send_recv; | |
2399 | if (check_opal_support(dev) != 0) { | |
f5b37b7c | 2400 | pr_debug("Opal is not supported on this device\n"); |
f829230d | 2401 | goto err_free_resp; |
4f1244c8 | 2402 | } |
5cc23ed7 | 2403 | |
4f1244c8 | 2404 | return dev; |
f829230d SS |
2405 | |
2406 | err_free_resp: | |
2407 | kfree(dev->resp); | |
2408 | ||
2409 | err_free_cmd: | |
2410 | kfree(dev->cmd); | |
2411 | ||
2412 | err_free_dev: | |
2413 | kfree(dev); | |
2414 | ||
2415 | return NULL; | |
455a7b23 SB |
2416 | } |
2417 | EXPORT_SYMBOL(init_opal_dev); | |
2418 | ||
2419 | static int opal_secure_erase_locking_range(struct opal_dev *dev, | |
2420 | struct opal_session_info *opal_session) | |
2421 | { | |
eed64951 | 2422 | const struct opal_step erase_steps[] = { |
eed64951 JD |
2423 | { start_auth_opal_session, opal_session }, |
2424 | { get_active_key, &opal_session->opal_key.lr }, | |
2425 | { gen_key, }, | |
3db87236 | 2426 | { end_opal_session, } |
455a7b23 SB |
2427 | }; |
2428 | int ret; | |
2429 | ||
2430 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2431 | setup_opal_dev(dev); |
a80f36cc | 2432 | ret = execute_steps(dev, erase_steps, ARRAY_SIZE(erase_steps)); |
455a7b23 | 2433 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2434 | |
455a7b23 SB |
2435 | return ret; |
2436 | } | |
2437 | ||
2438 | static int opal_erase_locking_range(struct opal_dev *dev, | |
2439 | struct opal_session_info *opal_session) | |
2440 | { | |
eed64951 | 2441 | const struct opal_step erase_steps[] = { |
eed64951 JD |
2442 | { start_auth_opal_session, opal_session }, |
2443 | { erase_locking_range, opal_session }, | |
3db87236 | 2444 | { end_opal_session, } |
455a7b23 SB |
2445 | }; |
2446 | int ret; | |
2447 | ||
2448 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2449 | setup_opal_dev(dev); |
a80f36cc | 2450 | ret = execute_steps(dev, erase_steps, ARRAY_SIZE(erase_steps)); |
455a7b23 | 2451 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2452 | |
455a7b23 SB |
2453 | return ret; |
2454 | } | |
2455 | ||
2456 | static int opal_enable_disable_shadow_mbr(struct opal_dev *dev, | |
2457 | struct opal_mbr_data *opal_mbr) | |
2458 | { | |
78bf4735 DK |
2459 | u8 enable_disable = opal_mbr->enable_disable == OPAL_MBR_ENABLE ? |
2460 | OPAL_TRUE : OPAL_FALSE; | |
2461 | ||
eed64951 | 2462 | const struct opal_step mbr_steps[] = { |
eed64951 | 2463 | { start_admin1LSP_opal_session, &opal_mbr->key }, |
78bf4735 | 2464 | { set_mbr_done, &enable_disable }, |
eed64951 JD |
2465 | { end_opal_session, }, |
2466 | { start_admin1LSP_opal_session, &opal_mbr->key }, | |
78bf4735 | 2467 | { set_mbr_enable_disable, &enable_disable }, |
3db87236 | 2468 | { end_opal_session, } |
455a7b23 SB |
2469 | }; |
2470 | int ret; | |
2471 | ||
2472 | if (opal_mbr->enable_disable != OPAL_MBR_ENABLE && | |
2473 | opal_mbr->enable_disable != OPAL_MBR_DISABLE) | |
2474 | return -EINVAL; | |
2475 | ||
2476 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2477 | setup_opal_dev(dev); |
a80f36cc | 2478 | ret = execute_steps(dev, mbr_steps, ARRAY_SIZE(mbr_steps)); |
455a7b23 | 2479 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2480 | |
455a7b23 SB |
2481 | return ret; |
2482 | } | |
2483 | ||
c9888443 JR |
2484 | static int opal_set_mbr_done(struct opal_dev *dev, |
2485 | struct opal_mbr_done *mbr_done) | |
2486 | { | |
2487 | u8 mbr_done_tf = mbr_done->done_flag == OPAL_MBR_DONE ? | |
2488 | OPAL_TRUE : OPAL_FALSE; | |
2489 | ||
2490 | const struct opal_step mbr_steps[] = { | |
2491 | { start_admin1LSP_opal_session, &mbr_done->key }, | |
2492 | { set_mbr_done, &mbr_done_tf }, | |
2493 | { end_opal_session, } | |
2494 | }; | |
2495 | int ret; | |
2496 | ||
2497 | if (mbr_done->done_flag != OPAL_MBR_DONE && | |
2498 | mbr_done->done_flag != OPAL_MBR_NOT_DONE) | |
2499 | return -EINVAL; | |
2500 | ||
2501 | mutex_lock(&dev->dev_lock); | |
2502 | setup_opal_dev(dev); | |
2503 | ret = execute_steps(dev, mbr_steps, ARRAY_SIZE(mbr_steps)); | |
2504 | mutex_unlock(&dev->dev_lock); | |
5cc23ed7 | 2505 | |
c9888443 JR |
2506 | return ret; |
2507 | } | |
2508 | ||
a9b25b4c JR |
2509 | static int opal_write_shadow_mbr(struct opal_dev *dev, |
2510 | struct opal_shadow_mbr *info) | |
2511 | { | |
2512 | const struct opal_step mbr_steps[] = { | |
2513 | { start_admin1LSP_opal_session, &info->key }, | |
2514 | { write_shadow_mbr, info }, | |
2515 | { end_opal_session, } | |
2516 | }; | |
2517 | int ret; | |
2518 | ||
2519 | if (info->size == 0) | |
2520 | return 0; | |
2521 | ||
2522 | mutex_lock(&dev->dev_lock); | |
2523 | setup_opal_dev(dev); | |
2524 | ret = execute_steps(dev, mbr_steps, ARRAY_SIZE(mbr_steps)); | |
2525 | mutex_unlock(&dev->dev_lock); | |
5cc23ed7 | 2526 | |
a9b25b4c JR |
2527 | return ret; |
2528 | } | |
2529 | ||
455a7b23 SB |
2530 | static int opal_save(struct opal_dev *dev, struct opal_lock_unlock *lk_unlk) |
2531 | { | |
2532 | struct opal_suspend_data *suspend; | |
2533 | ||
2534 | suspend = kzalloc(sizeof(*suspend), GFP_KERNEL); | |
2535 | if (!suspend) | |
2536 | return -ENOMEM; | |
2537 | ||
2538 | suspend->unlk = *lk_unlk; | |
2539 | suspend->lr = lk_unlk->session.opal_key.lr; | |
2540 | ||
2541 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2542 | setup_opal_dev(dev); |
455a7b23 SB |
2543 | add_suspend_info(dev, suspend); |
2544 | mutex_unlock(&dev->dev_lock); | |
5cc23ed7 | 2545 | |
455a7b23 SB |
2546 | return 0; |
2547 | } | |
2548 | ||
2549 | static int opal_add_user_to_lr(struct opal_dev *dev, | |
2550 | struct opal_lock_unlock *lk_unlk) | |
2551 | { | |
eed64951 | 2552 | const struct opal_step steps[] = { |
eed64951 JD |
2553 | { start_admin1LSP_opal_session, &lk_unlk->session.opal_key }, |
2554 | { add_user_to_lr, lk_unlk }, | |
8be19a02 | 2555 | { add_user_to_lr_ace, lk_unlk }, |
3db87236 | 2556 | { end_opal_session, } |
455a7b23 SB |
2557 | }; |
2558 | int ret; | |
2559 | ||
2560 | if (lk_unlk->l_state != OPAL_RO && | |
2561 | lk_unlk->l_state != OPAL_RW) { | |
591c59d1 | 2562 | pr_debug("Locking state was not RO or RW\n"); |
455a7b23 SB |
2563 | return -EINVAL; |
2564 | } | |
5cc23ed7 | 2565 | |
b0bfdfc2 | 2566 | if (lk_unlk->session.who < OPAL_USER1 || |
455a7b23 | 2567 | lk_unlk->session.who > OPAL_USER9) { |
591c59d1 SB |
2568 | pr_debug("Authority was not within the range of users: %d\n", |
2569 | lk_unlk->session.who); | |
455a7b23 SB |
2570 | return -EINVAL; |
2571 | } | |
5cc23ed7 | 2572 | |
455a7b23 | 2573 | if (lk_unlk->session.sum) { |
591c59d1 SB |
2574 | pr_debug("%s not supported in sum. Use setup locking range\n", |
2575 | __func__); | |
455a7b23 SB |
2576 | return -EINVAL; |
2577 | } | |
2578 | ||
2579 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2580 | setup_opal_dev(dev); |
a80f36cc | 2581 | ret = execute_steps(dev, steps, ARRAY_SIZE(steps)); |
455a7b23 | 2582 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2583 | |
455a7b23 SB |
2584 | return ret; |
2585 | } | |
2586 | ||
5e4c7cf6 | 2587 | static int opal_reverttper(struct opal_dev *dev, struct opal_key *opal, bool psid) |
455a7b23 | 2588 | { |
5e4c7cf6 | 2589 | /* controller will terminate session */ |
eed64951 | 2590 | const struct opal_step revert_steps[] = { |
eed64951 | 2591 | { start_SIDASP_opal_session, opal }, |
5e4c7cf6 | 2592 | { revert_tper, } |
455a7b23 | 2593 | }; |
5e4c7cf6 RR |
2594 | const struct opal_step psid_revert_steps[] = { |
2595 | { start_PSID_opal_session, opal }, | |
2596 | { revert_tper, } | |
2597 | }; | |
2598 | ||
455a7b23 SB |
2599 | int ret; |
2600 | ||
2601 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2602 | setup_opal_dev(dev); |
5e4c7cf6 RR |
2603 | if (psid) |
2604 | ret = execute_steps(dev, psid_revert_steps, | |
2605 | ARRAY_SIZE(psid_revert_steps)); | |
2606 | else | |
2607 | ret = execute_steps(dev, revert_steps, | |
2608 | ARRAY_SIZE(revert_steps)); | |
455a7b23 | 2609 | mutex_unlock(&dev->dev_lock); |
7d6d1578 SB |
2610 | |
2611 | /* | |
2612 | * If we successfully reverted lets clean | |
2613 | * any saved locking ranges. | |
2614 | */ | |
2615 | if (!ret) | |
2616 | clean_opal_dev(dev); | |
2617 | ||
455a7b23 SB |
2618 | return ret; |
2619 | } | |
2620 | ||
eed64951 JD |
2621 | static int __opal_lock_unlock(struct opal_dev *dev, |
2622 | struct opal_lock_unlock *lk_unlk) | |
455a7b23 | 2623 | { |
eed64951 | 2624 | const struct opal_step unlock_steps[] = { |
eed64951 JD |
2625 | { start_auth_opal_session, &lk_unlk->session }, |
2626 | { lock_unlock_locking_range, lk_unlk }, | |
3db87236 | 2627 | { end_opal_session, } |
455a7b23 | 2628 | }; |
eed64951 | 2629 | const struct opal_step unlock_sum_steps[] = { |
eed64951 JD |
2630 | { start_auth_opal_session, &lk_unlk->session }, |
2631 | { lock_unlock_locking_range_sum, lk_unlk }, | |
3db87236 | 2632 | { end_opal_session, } |
455a7b23 SB |
2633 | }; |
2634 | ||
3db87236 | 2635 | if (lk_unlk->session.sum) |
a80f36cc DK |
2636 | return execute_steps(dev, unlock_sum_steps, |
2637 | ARRAY_SIZE(unlock_sum_steps)); | |
3db87236 | 2638 | else |
a80f36cc DK |
2639 | return execute_steps(dev, unlock_steps, |
2640 | ARRAY_SIZE(unlock_steps)); | |
455a7b23 SB |
2641 | } |
2642 | ||
dbec491b SB |
2643 | static int __opal_set_mbr_done(struct opal_dev *dev, struct opal_key *key) |
2644 | { | |
78bf4735 | 2645 | u8 mbr_done_tf = OPAL_TRUE; |
1e815b33 | 2646 | const struct opal_step mbrdone_step[] = { |
dbec491b SB |
2647 | { start_admin1LSP_opal_session, key }, |
2648 | { set_mbr_done, &mbr_done_tf }, | |
3db87236 | 2649 | { end_opal_session, } |
dbec491b SB |
2650 | }; |
2651 | ||
a80f36cc | 2652 | return execute_steps(dev, mbrdone_step, ARRAY_SIZE(mbrdone_step)); |
dbec491b SB |
2653 | } |
2654 | ||
c1f480b2 LB |
2655 | static void opal_lock_check_for_saved_key(struct opal_dev *dev, |
2656 | struct opal_lock_unlock *lk_unlk) | |
2657 | { | |
2658 | struct opal_suspend_data *iter; | |
2659 | ||
2660 | if (lk_unlk->l_state != OPAL_LK || | |
2661 | lk_unlk->session.opal_key.key_len > 0) | |
2662 | return; | |
2663 | ||
2664 | /* | |
2665 | * Usually when closing a crypto device (eg: dm-crypt with LUKS) the | |
2666 | * volume key is not required, as it requires root privileges anyway, | |
2667 | * and root can deny access to a disk in many ways regardless. | |
2668 | * Requiring the volume key to lock the device is a peculiarity of the | |
2669 | * OPAL specification. Given we might already have saved the key if | |
2670 | * the user requested it via the 'IOC_OPAL_SAVE' ioctl, we can use | |
2671 | * that key to lock the device if no key was provided here, the | |
2672 | * locking range matches and the appropriate flag was passed with | |
2673 | * 'IOC_OPAL_SAVE'. | |
2674 | * This allows integrating OPAL with tools and libraries that are used | |
2675 | * to the common behaviour and do not ask for the volume key when | |
2676 | * closing a device. | |
2677 | */ | |
2678 | setup_opal_dev(dev); | |
2679 | list_for_each_entry(iter, &dev->unlk_lst, node) { | |
2680 | if ((iter->unlk.flags & OPAL_SAVE_FOR_LOCK) && | |
2681 | iter->lr == lk_unlk->session.opal_key.lr && | |
2682 | iter->unlk.session.opal_key.key_len > 0) { | |
2683 | lk_unlk->session.opal_key.key_len = | |
2684 | iter->unlk.session.opal_key.key_len; | |
2685 | memcpy(lk_unlk->session.opal_key.key, | |
2686 | iter->unlk.session.opal_key.key, | |
2687 | iter->unlk.session.opal_key.key_len); | |
2688 | break; | |
2689 | } | |
2690 | } | |
2691 | } | |
2692 | ||
eed64951 JD |
2693 | static int opal_lock_unlock(struct opal_dev *dev, |
2694 | struct opal_lock_unlock *lk_unlk) | |
455a7b23 | 2695 | { |
455a7b23 SB |
2696 | int ret; |
2697 | ||
15ddffcb | 2698 | if (lk_unlk->session.who > OPAL_USER9) |
455a7b23 SB |
2699 | return -EINVAL; |
2700 | ||
2701 | mutex_lock(&dev->dev_lock); | |
c1f480b2 | 2702 | opal_lock_check_for_saved_key(dev, lk_unlk); |
eed64951 | 2703 | ret = __opal_lock_unlock(dev, lk_unlk); |
455a7b23 | 2704 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2705 | |
455a7b23 SB |
2706 | return ret; |
2707 | } | |
2708 | ||
2709 | static int opal_take_ownership(struct opal_dev *dev, struct opal_key *opal) | |
2710 | { | |
eed64951 | 2711 | const struct opal_step owner_steps[] = { |
eed64951 JD |
2712 | { start_anybodyASP_opal_session, }, |
2713 | { get_msid_cpin_pin, }, | |
2714 | { end_opal_session, }, | |
2715 | { start_SIDASP_opal_session, opal }, | |
2716 | { set_sid_cpin_pin, opal }, | |
3db87236 | 2717 | { end_opal_session, } |
455a7b23 | 2718 | }; |
455a7b23 SB |
2719 | int ret; |
2720 | ||
2721 | if (!dev) | |
2722 | return -ENODEV; | |
2723 | ||
2724 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2725 | setup_opal_dev(dev); |
a80f36cc | 2726 | ret = execute_steps(dev, owner_steps, ARRAY_SIZE(owner_steps)); |
455a7b23 | 2727 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2728 | |
455a7b23 SB |
2729 | return ret; |
2730 | } | |
2731 | ||
1e815b33 DK |
2732 | static int opal_activate_lsp(struct opal_dev *dev, |
2733 | struct opal_lr_act *opal_lr_act) | |
455a7b23 | 2734 | { |
eed64951 | 2735 | const struct opal_step active_steps[] = { |
eed64951 JD |
2736 | { start_SIDASP_opal_session, &opal_lr_act->key }, |
2737 | { get_lsp_lifecycle, }, | |
2738 | { activate_lsp, opal_lr_act }, | |
3db87236 | 2739 | { end_opal_session, } |
455a7b23 SB |
2740 | }; |
2741 | int ret; | |
2742 | ||
2743 | if (!opal_lr_act->num_lrs || opal_lr_act->num_lrs > OPAL_MAX_LRS) | |
2744 | return -EINVAL; | |
2745 | ||
2746 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2747 | setup_opal_dev(dev); |
a80f36cc | 2748 | ret = execute_steps(dev, active_steps, ARRAY_SIZE(active_steps)); |
455a7b23 | 2749 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2750 | |
455a7b23 SB |
2751 | return ret; |
2752 | } | |
2753 | ||
2754 | static int opal_setup_locking_range(struct opal_dev *dev, | |
2755 | struct opal_user_lr_setup *opal_lrs) | |
2756 | { | |
eed64951 | 2757 | const struct opal_step lr_steps[] = { |
eed64951 JD |
2758 | { start_auth_opal_session, &opal_lrs->session }, |
2759 | { setup_locking_range, opal_lrs }, | |
3db87236 | 2760 | { end_opal_session, } |
455a7b23 SB |
2761 | }; |
2762 | int ret; | |
2763 | ||
2764 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2765 | setup_opal_dev(dev); |
a80f36cc | 2766 | ret = execute_steps(dev, lr_steps, ARRAY_SIZE(lr_steps)); |
455a7b23 | 2767 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2768 | |
455a7b23 SB |
2769 | return ret; |
2770 | } | |
2771 | ||
4c4dd04e OK |
2772 | static int opal_locking_range_status(struct opal_dev *dev, |
2773 | struct opal_lr_status *opal_lrst, | |
2774 | void __user *data) | |
2775 | { | |
2776 | const struct opal_step lr_steps[] = { | |
2777 | { start_auth_opal_session, &opal_lrst->session }, | |
2778 | { locking_range_status, opal_lrst }, | |
2779 | { end_opal_session, } | |
2780 | }; | |
2781 | int ret; | |
2782 | ||
2783 | mutex_lock(&dev->dev_lock); | |
2784 | setup_opal_dev(dev); | |
2785 | ret = execute_steps(dev, lr_steps, ARRAY_SIZE(lr_steps)); | |
2786 | mutex_unlock(&dev->dev_lock); | |
2787 | ||
2788 | /* skip session info when copying back to uspace */ | |
2789 | if (!ret && copy_to_user(data + offsetof(struct opal_lr_status, range_start), | |
2790 | (void *)opal_lrst + offsetof(struct opal_lr_status, range_start), | |
2791 | sizeof(*opal_lrst) - offsetof(struct opal_lr_status, range_start))) { | |
2792 | pr_debug("Error copying status to userspace\n"); | |
2793 | return -EFAULT; | |
2794 | } | |
2795 | ||
2796 | return ret; | |
2797 | } | |
2798 | ||
455a7b23 SB |
2799 | static int opal_set_new_pw(struct opal_dev *dev, struct opal_new_pw *opal_pw) |
2800 | { | |
eed64951 | 2801 | const struct opal_step pw_steps[] = { |
eed64951 JD |
2802 | { start_auth_opal_session, &opal_pw->session }, |
2803 | { set_new_pw, &opal_pw->new_user_pw }, | |
3db87236 | 2804 | { end_opal_session, } |
455a7b23 | 2805 | }; |
455a7b23 SB |
2806 | int ret; |
2807 | ||
15ddffcb | 2808 | if (opal_pw->session.who > OPAL_USER9 || |
455a7b23 SB |
2809 | opal_pw->new_user_pw.who > OPAL_USER9) |
2810 | return -EINVAL; | |
2811 | ||
2812 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2813 | setup_opal_dev(dev); |
a80f36cc | 2814 | ret = execute_steps(dev, pw_steps, ARRAY_SIZE(pw_steps)); |
455a7b23 | 2815 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2816 | |
455a7b23 SB |
2817 | return ret; |
2818 | } | |
2819 | ||
2820 | static int opal_activate_user(struct opal_dev *dev, | |
2821 | struct opal_session_info *opal_session) | |
2822 | { | |
eed64951 | 2823 | const struct opal_step act_steps[] = { |
eed64951 JD |
2824 | { start_admin1LSP_opal_session, &opal_session->opal_key }, |
2825 | { internal_activate_user, opal_session }, | |
3db87236 | 2826 | { end_opal_session, } |
455a7b23 | 2827 | }; |
455a7b23 SB |
2828 | int ret; |
2829 | ||
2830 | /* We can't activate Admin1 it's active as manufactured */ | |
b0bfdfc2 | 2831 | if (opal_session->who < OPAL_USER1 || |
455a7b23 | 2832 | opal_session->who > OPAL_USER9) { |
591c59d1 | 2833 | pr_debug("Who was not a valid user: %d\n", opal_session->who); |
455a7b23 SB |
2834 | return -EINVAL; |
2835 | } | |
2836 | ||
2837 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2838 | setup_opal_dev(dev); |
a80f36cc | 2839 | ret = execute_steps(dev, act_steps, ARRAY_SIZE(act_steps)); |
455a7b23 | 2840 | mutex_unlock(&dev->dev_lock); |
5cc23ed7 | 2841 | |
455a7b23 SB |
2842 | return ret; |
2843 | } | |
2844 | ||
2845 | bool opal_unlock_from_suspend(struct opal_dev *dev) | |
2846 | { | |
2847 | struct opal_suspend_data *suspend; | |
455a7b23 SB |
2848 | bool was_failure = false; |
2849 | int ret = 0; | |
2850 | ||
2851 | if (!dev) | |
2852 | return false; | |
5cc23ed7 | 2853 | |
c6ea7060 | 2854 | if (!(dev->flags & OPAL_FL_SUPPORTED)) |
455a7b23 SB |
2855 | return false; |
2856 | ||
2857 | mutex_lock(&dev->dev_lock); | |
3db87236 | 2858 | setup_opal_dev(dev); |
455a7b23 SB |
2859 | |
2860 | list_for_each_entry(suspend, &dev->unlk_lst, node) { | |
455a7b23 SB |
2861 | dev->tsn = 0; |
2862 | dev->hsn = 0; | |
2863 | ||
eed64951 | 2864 | ret = __opal_lock_unlock(dev, &suspend->unlk); |
455a7b23 | 2865 | if (ret) { |
591c59d1 SB |
2866 | pr_debug("Failed to unlock LR %hhu with sum %d\n", |
2867 | suspend->unlk.session.opal_key.lr, | |
2868 | suspend->unlk.session.sum); | |
455a7b23 SB |
2869 | was_failure = true; |
2870 | } | |
5cc23ed7 | 2871 | |
c6ea7060 | 2872 | if (dev->flags & OPAL_FL_MBR_ENABLED) { |
dbec491b SB |
2873 | ret = __opal_set_mbr_done(dev, &suspend->unlk.session.opal_key); |
2874 | if (ret) | |
2875 | pr_debug("Failed to set MBR Done in S3 resume\n"); | |
2876 | } | |
455a7b23 SB |
2877 | } |
2878 | mutex_unlock(&dev->dev_lock); | |
5cc23ed7 | 2879 | |
455a7b23 SB |
2880 | return was_failure; |
2881 | } | |
2882 | EXPORT_SYMBOL(opal_unlock_from_suspend); | |
2883 | ||
51f421c8 RR |
2884 | static int opal_read_table(struct opal_dev *dev, |
2885 | struct opal_read_write_table *rw_tbl) | |
2886 | { | |
2887 | const struct opal_step read_table_steps[] = { | |
2888 | { start_admin1LSP_opal_session, &rw_tbl->key }, | |
2889 | { read_table_data, rw_tbl }, | |
2890 | { end_opal_session, } | |
2891 | }; | |
2892 | int ret = 0; | |
2893 | ||
2894 | if (!rw_tbl->size) | |
2895 | return ret; | |
2896 | ||
2897 | return execute_steps(dev, read_table_steps, | |
2898 | ARRAY_SIZE(read_table_steps)); | |
2899 | } | |
2900 | ||
2901 | static int opal_write_table(struct opal_dev *dev, | |
2902 | struct opal_read_write_table *rw_tbl) | |
2903 | { | |
2904 | const struct opal_step write_table_steps[] = { | |
2905 | { start_admin1LSP_opal_session, &rw_tbl->key }, | |
2906 | { write_table_data, rw_tbl }, | |
2907 | { end_opal_session, } | |
2908 | }; | |
2909 | int ret = 0; | |
2910 | ||
2911 | if (!rw_tbl->size) | |
2912 | return ret; | |
2913 | ||
2914 | return execute_steps(dev, write_table_steps, | |
2915 | ARRAY_SIZE(write_table_steps)); | |
2916 | } | |
2917 | ||
2918 | static int opal_generic_read_write_table(struct opal_dev *dev, | |
2919 | struct opal_read_write_table *rw_tbl) | |
2920 | { | |
2921 | int ret, bit_set; | |
2922 | ||
2923 | mutex_lock(&dev->dev_lock); | |
2924 | setup_opal_dev(dev); | |
2925 | ||
2926 | bit_set = fls64(rw_tbl->flags) - 1; | |
2927 | switch (bit_set) { | |
2928 | case OPAL_READ_TABLE: | |
2929 | ret = opal_read_table(dev, rw_tbl); | |
2930 | break; | |
2931 | case OPAL_WRITE_TABLE: | |
2932 | ret = opal_write_table(dev, rw_tbl); | |
2933 | break; | |
2934 | default: | |
2935 | pr_debug("Invalid bit set in the flag (%016llx).\n", | |
2936 | rw_tbl->flags); | |
2937 | ret = -EINVAL; | |
2938 | break; | |
2939 | } | |
2940 | ||
2941 | mutex_unlock(&dev->dev_lock); | |
2942 | ||
2943 | return ret; | |
2944 | } | |
2945 | ||
c6ea7060 | 2946 | static int opal_get_status(struct opal_dev *dev, void __user *data) |
2947 | { | |
2948 | struct opal_status sts = {0}; | |
2949 | ||
2950 | /* | |
2951 | * check_opal_support() error is not fatal, | |
2952 | * !dev->supported is a valid condition | |
2953 | */ | |
2954 | if (!check_opal_support(dev)) | |
2955 | sts.flags = dev->flags; | |
2956 | if (copy_to_user(data, &sts, sizeof(sts))) { | |
2957 | pr_debug("Error copying status to userspace\n"); | |
2958 | return -EFAULT; | |
2959 | } | |
2960 | return 0; | |
2961 | } | |
2962 | ||
9e05a259 OK |
2963 | static int opal_get_geometry(struct opal_dev *dev, void __user *data) |
2964 | { | |
2965 | struct opal_geometry geo = {0}; | |
2966 | ||
2967 | if (check_opal_support(dev)) | |
2968 | return -EINVAL; | |
2969 | ||
2970 | geo.align = dev->align_required; | |
2971 | geo.logical_block_size = dev->logical_block_size; | |
2972 | geo.alignment_granularity = dev->align; | |
2973 | geo.lowest_aligned_lba = dev->lowest_lba; | |
2974 | ||
2975 | if (copy_to_user(data, &geo, sizeof(geo))) { | |
2976 | pr_debug("Error copying geometry data to userspace\n"); | |
2977 | return -EFAULT; | |
2978 | } | |
2979 | ||
2980 | return 0; | |
2981 | } | |
2982 | ||
e225c20e | 2983 | int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *arg) |
455a7b23 | 2984 | { |
e225c20e SB |
2985 | void *p; |
2986 | int ret = -ENOTTY; | |
455a7b23 SB |
2987 | |
2988 | if (!capable(CAP_SYS_ADMIN)) | |
2989 | return -EACCES; | |
4f1244c8 CH |
2990 | if (!dev) |
2991 | return -ENOTSUPP; | |
c6ea7060 | 2992 | if (!(dev->flags & OPAL_FL_SUPPORTED)) |
455a7b23 | 2993 | return -ENOTSUPP; |
455a7b23 | 2994 | |
c6ea7060 | 2995 | if (cmd & IOC_IN) { |
2996 | p = memdup_user(arg, _IOC_SIZE(cmd)); | |
2997 | if (IS_ERR(p)) | |
2998 | return PTR_ERR(p); | |
2999 | } | |
455a7b23 | 3000 | |
e225c20e SB |
3001 | switch (cmd) { |
3002 | case IOC_OPAL_SAVE: | |
3003 | ret = opal_save(dev, p); | |
3004 | break; | |
3005 | case IOC_OPAL_LOCK_UNLOCK: | |
3006 | ret = opal_lock_unlock(dev, p); | |
3007 | break; | |
3008 | case IOC_OPAL_TAKE_OWNERSHIP: | |
3009 | ret = opal_take_ownership(dev, p); | |
3010 | break; | |
3011 | case IOC_OPAL_ACTIVATE_LSP: | |
3012 | ret = opal_activate_lsp(dev, p); | |
3013 | break; | |
3014 | case IOC_OPAL_SET_PW: | |
3015 | ret = opal_set_new_pw(dev, p); | |
3016 | break; | |
3017 | case IOC_OPAL_ACTIVATE_USR: | |
3018 | ret = opal_activate_user(dev, p); | |
3019 | break; | |
3020 | case IOC_OPAL_REVERT_TPR: | |
5e4c7cf6 | 3021 | ret = opal_reverttper(dev, p, false); |
e225c20e SB |
3022 | break; |
3023 | case IOC_OPAL_LR_SETUP: | |
3024 | ret = opal_setup_locking_range(dev, p); | |
3025 | break; | |
3026 | case IOC_OPAL_ADD_USR_TO_LR: | |
3027 | ret = opal_add_user_to_lr(dev, p); | |
3028 | break; | |
3029 | case IOC_OPAL_ENABLE_DISABLE_MBR: | |
3030 | ret = opal_enable_disable_shadow_mbr(dev, p); | |
3031 | break; | |
c9888443 JR |
3032 | case IOC_OPAL_MBR_DONE: |
3033 | ret = opal_set_mbr_done(dev, p); | |
3034 | break; | |
a9b25b4c JR |
3035 | case IOC_OPAL_WRITE_SHADOW_MBR: |
3036 | ret = opal_write_shadow_mbr(dev, p); | |
3037 | break; | |
e225c20e SB |
3038 | case IOC_OPAL_ERASE_LR: |
3039 | ret = opal_erase_locking_range(dev, p); | |
3040 | break; | |
3041 | case IOC_OPAL_SECURE_ERASE_LR: | |
3042 | ret = opal_secure_erase_locking_range(dev, p); | |
3043 | break; | |
5e4c7cf6 RR |
3044 | case IOC_OPAL_PSID_REVERT_TPR: |
3045 | ret = opal_reverttper(dev, p, true); | |
3046 | break; | |
51f421c8 RR |
3047 | case IOC_OPAL_GENERIC_TABLE_RW: |
3048 | ret = opal_generic_read_write_table(dev, p); | |
3049 | break; | |
c6ea7060 | 3050 | case IOC_OPAL_GET_STATUS: |
3051 | ret = opal_get_status(dev, arg); | |
3052 | break; | |
4c4dd04e OK |
3053 | case IOC_OPAL_GET_LR_STATUS: |
3054 | ret = opal_locking_range_status(dev, p, arg); | |
3055 | break; | |
9e05a259 OK |
3056 | case IOC_OPAL_GET_GEOMETRY: |
3057 | ret = opal_get_geometry(dev, arg); | |
3058 | break; | |
455a7b23 | 3059 | default: |
591c59d1 | 3060 | break; |
455a7b23 | 3061 | } |
e225c20e | 3062 | |
c6ea7060 | 3063 | if (cmd & IOC_IN) |
3064 | kfree(p); | |
e225c20e | 3065 | return ret; |
455a7b23 SB |
3066 | } |
3067 | EXPORT_SYMBOL_GPL(sed_ioctl); |