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