summaryrefslogtreecommitdiff
path: root/block/opal_proto.h
blob: b6e352cfe982b3d0ee905eef308b54771802f7b2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
/*
 * Copyright © 2016 Intel Corporation
 *
 * Authors:
 *    Rafael Antognolli <rafael.antognolli@intel.com>
 *    Scott  Bauer      <scott.bauer@intel.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */
#include <linux/types.h>

#ifndef _OPAL_PROTO_H
#define _OPAL_PROTO_H

/*
 * These constant values come from:
 * SPC-4 section
 * 6.30 SECURITY PROTOCOL IN command / table 265.
 */
enum {
	TCG_SECP_00 = 0,
	TCG_SECP_01,
};

/*
 * Token defs derived from:
 * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
 * 3.2.2 Data Stream Encoding
 */
enum opal_response_token {
	OPAL_DTA_TOKENID_BYTESTRING = 0xe0,
	OPAL_DTA_TOKENID_SINT = 0xe1,
	OPAL_DTA_TOKENID_UINT = 0xe2,
	OPAL_DTA_TOKENID_TOKEN = 0xe3, /* actual token is returned */
	OPAL_DTA_TOKENID_INVALID = 0X0
};

#define DTAERROR_NO_METHOD_STATUS 0x89
#define GENERIC_HOST_SESSION_NUM 0x41

#define TPER_SYNC_SUPPORTED 0x01
#define MBR_ENABLED_MASK 0x10

#define TINY_ATOM_DATA_MASK 0x3F
#define TINY_ATOM_SIGNED 0x40

#define SHORT_ATOM_ID 0x80
#define SHORT_ATOM_BYTESTRING 0x20
#define SHORT_ATOM_SIGNED 0x10
#define SHORT_ATOM_LEN_MASK 0xF

#define MEDIUM_ATOM_ID 0xC0
#define MEDIUM_ATOM_BYTESTRING 0x10
#define MEDIUM_ATOM_SIGNED 0x8
#define MEDIUM_ATOM_LEN_MASK 0x7

#define LONG_ATOM_ID 0xe0
#define LONG_ATOM_BYTESTRING 0x2
#define LONG_ATOM_SIGNED 0x1

/* Derived from TCG Core spec 2.01 Section:
 * 3.2.2.1
 * Data Type
 */
#define TINY_ATOM_BYTE   0x7F
#define SHORT_ATOM_BYTE  0xBF
#define MEDIUM_ATOM_BYTE 0xDF
#define LONG_ATOM_BYTE   0xE3

#define OPAL_INVAL_PARAM 12
#define OPAL_MANUFACTURED_INACTIVE 0x08
#define OPAL_DISCOVERY_COMID 0x0001

#define LOCKING_RANGE_NON_GLOBAL 0x03
/*
 * User IDs used in the TCG storage SSCs
 * Derived from: TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
 * Section: 6.3 Assigned UIDs
 */
#define OPAL_UID_LENGTH 8
#define OPAL_METHOD_LENGTH 8
#define OPAL_MSID_KEYLEN 15
#define OPAL_UID_LENGTH_HALF 4

/* Enum to index OPALUID array */
enum opal_uid {
	/* users */
	OPAL_SMUID_UID,
	OPAL_THISSP_UID,
	OPAL_ADMINSP_UID,
	OPAL_LOCKINGSP_UID,
	OPAL_ENTERPRISE_LOCKINGSP_UID,
	OPAL_ANYBODY_UID,
	OPAL_SID_UID,
	OPAL_ADMIN1_UID,
	OPAL_USER1_UID,
	OPAL_USER2_UID,
	OPAL_PSID_UID,
	OPAL_ENTERPRISE_BANDMASTER0_UID,
	OPAL_ENTERPRISE_ERASEMASTER_UID,
	/* tables */
	OPAL_LOCKINGRANGE_GLOBAL,
	OPAL_LOCKINGRANGE_ACE_RDLOCKED,
	OPAL_LOCKINGRANGE_ACE_WRLOCKED,
	OPAL_MBRCONTROL,
	OPAL_MBR,
	OPAL_AUTHORITY_TABLE,
	OPAL_C_PIN_TABLE,
	OPAL_LOCKING_INFO_TABLE,
	OPAL_ENTERPRISE_LOCKING_INFO_TABLE,
	/* C_PIN_TABLE object ID's */
	OPAL_C_PIN_MSID,
	OPAL_C_PIN_SID,
	OPAL_C_PIN_ADMIN1,
	/* half UID's (only first 4 bytes used) */
	OPAL_HALF_UID_AUTHORITY_OBJ_REF,
	OPAL_HALF_UID_BOOLEAN_ACE,
	/* omitted optional parameter */
	OPAL_UID_HEXFF,
};

#define OPAL_METHOD_LENGTH 8

/* Enum for indexing the OPALMETHOD array */
enum opal_method {
	OPAL_PROPERTIES,
	OPAL_STARTSESSION,
	OPAL_REVERT,
	OPAL_ACTIVATE,
	OPAL_EGET,
	OPAL_ESET,
	OPAL_NEXT,
	OPAL_EAUTHENTICATE,
	OPAL_GETACL,
	OPAL_GENKEY,
	OPAL_REVERTSP,
	OPAL_GET,
	OPAL_SET,
	OPAL_AUTHENTICATE,
	OPAL_RANDOM,
	OPAL_ERASE,
};

enum opal_token {
	/* Boolean */
	OPAL_TRUE = 0x01,
	OPAL_FALSE = 0x00,
	OPAL_BOOLEAN_EXPR = 0x03,
	/* cellblocks */
	OPAL_TABLE = 0x00,
	OPAL_STARTROW = 0x01,
	OPAL_ENDROW = 0x02,
	OPAL_STARTCOLUMN = 0x03,
	OPAL_ENDCOLUMN = 0x04,
	OPAL_VALUES = 0x01,
	/* authority table */
	OPAL_PIN = 0x03,
	/* locking tokens */
	OPAL_RANGESTART = 0x03,
	OPAL_RANGELENGTH = 0x04,
	OPAL_READLOCKENABLED = 0x05,
	OPAL_WRITELOCKENABLED = 0x06,
	OPAL_READLOCKED = 0x07,
	OPAL_WRITELOCKED = 0x08,
	OPAL_ACTIVEKEY = 0x0A,
	/* lockingsp table */
	OPAL_LIFECYCLE = 0x06,
	/* locking info table */
	OPAL_MAXRANGES = 0x04,
	 /* mbr control */
	OPAL_MBRENABLE = 0x01,
	OPAL_MBRDONE = 0x02,
	/* properties */
	OPAL_HOSTPROPERTIES = 0x00,
	/* atoms */
	OPAL_STARTLIST = 0xf0,
	OPAL_ENDLIST = 0xf1,
	OPAL_STARTNAME = 0xf2,
	OPAL_ENDNAME = 0xf3,
	OPAL_CALL = 0xf8,
	OPAL_ENDOFDATA = 0xf9,
	OPAL_ENDOFSESSION = 0xfa,
	OPAL_STARTTRANSACTON = 0xfb,
	OPAL_ENDTRANSACTON = 0xfC,
	OPAL_EMPTYATOM = 0xff,
	OPAL_WHERE = 0x00,
};

/* Locking state for a locking range */
enum opal_lockingstate {
	OPAL_LOCKING_READWRITE = 0x01,
	OPAL_LOCKING_READONLY = 0x02,
	OPAL_LOCKING_LOCKED = 0x03,
};

/* Packets derived from:
 * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
 * Secion: 3.2.3 ComPackets, Packets & Subpackets
 */

/* Comm Packet (header) for transmissions. */
struct opal_compacket {
	__be32 reserved0;
	u8 extendedComID[4];
	__be32 outstandingData;
	__be32 minTransfer;
	__be32 length;
};

/* Packet structure. */
struct opal_packet {
	__be32 tsn;
	__be32 hsn;
	__be32 seq_number;
	__be16 reserved0;
	__be16 ack_type;
	__be32 acknowledgment;
	__be32 length;
};

/* Data sub packet header */
struct opal_data_subpacket {
	u8 reserved0[6];
	__be16 kind;
	__be32 length;
};

/* header of a response */
struct opal_header {
	struct opal_compacket cp;
	struct opal_packet pkt;
	struct opal_data_subpacket subpkt;
};

#define FC_TPER       0x0001
#define FC_LOCKING    0x0002
#define FC_GEOMETRY   0x0003
#define FC_ENTERPRISE 0x0100
#define FC_DATASTORE  0x0202
#define FC_SINGLEUSER 0x0201
#define FC_OPALV100   0x0200
#define FC_OPALV200   0x0203

/*
 * The Discovery 0 Header. As defined in
 * Opal SSC Documentation
 * Section: 3.3.5 Capability Discovery
 */
struct d0_header {
	__be32 length; /* the length of the header 48 in 2.00.100 */
	__be32 revision; /**< revision of the header 1 in 2.00.100 */
	__be32 reserved01;
	__be32 reserved02;
	/*
	 * the remainder of the structure is vendor specific and will not be
	 * addressed now
	 */
	u8 ignored[32];
};

/*
 * TPer Feature Descriptor. Contains flags indicating support for the
 * TPer features described in the OPAL specification. The names match the
 * OPAL terminology
 *
 * code == 0x001 in 2.00.100
 */
struct d0_tper_features {
	/*
	 * supported_features bits:
	 * bit 7: reserved
	 * bit 6: com ID management
	 * bit 5: reserved
	 * bit 4: streaming support
	 * bit 3: buffer management
	 * bit 2: ACK/NACK
	 * bit 1: async
	 * bit 0: sync
	 */
	u8 supported_features;
	/*
	 * bytes 5 through 15 are reserved, but we represent the first 3 as
	 * u8 to keep the other two 32bits integers aligned.
	 */
	u8 reserved01[3];
	__be32 reserved02;
	__be32 reserved03;
};

/*
 * Locking Feature Descriptor. Contains flags indicating support for the
 * locking features described in the OPAL specification. The names match the
 * OPAL terminology
 *
 * code == 0x0002 in 2.00.100
 */
struct d0_locking_features {
	/*
	 * supported_features bits:
	 * bits 6-7: reserved
	 * bit 5: MBR done
	 * bit 4: MBR enabled
	 * bit 3: media encryption
	 * bit 2: locked
	 * bit 1: locking enabled
	 * bit 0: locking supported
	 */
	u8 supported_features;
	/*
	 * bytes 5 through 15 are reserved, but we represent the first 3 as
	 * u8 to keep the other two 32bits integers aligned.
	 */
	u8 reserved01[3];
	__be32 reserved02;
	__be32 reserved03;
};

/*
 * Geometry Feature Descriptor. Contains flags indicating support for the
 * geometry features described in the OPAL specification. The names match the
 * OPAL terminology
 *
 * code == 0x0003 in 2.00.100
 */
struct d0_geometry_features {
	/*
	 * skip 32 bits from header, needed to align the struct to 64 bits.
	 */
	u8 header[4];
	/*
	 * reserved01:
	 * bits 1-6: reserved
	 * bit 0: align
	 */
	u8 reserved01;
	u8 reserved02[7];
	__be32 logical_block_size;
	__be64 alignment_granularity;
	__be64 lowest_aligned_lba;
};

/*
 * Enterprise SSC Feature
 *
 * code == 0x0100
 */
struct d0_enterprise_ssc {
	__be16 baseComID;
	__be16 numComIDs;
	/* range_crossing:
	 * bits 1-6: reserved
	 * bit 0: range crossing
	 */
	u8 range_crossing;
	u8 reserved01;
	__be16 reserved02;
	__be32 reserved03;
	__be32 reserved04;
};

/*
 * Opal V1 feature
 *
 * code == 0x0200
 */
struct d0_opal_v100 {
	__be16 baseComID;
	__be16 numComIDs;
};

/*
 * Single User Mode feature
 *
 * code == 0x0201
 */
struct d0_single_user_mode {
	__be32 num_locking_objects;
	/* reserved01:
	 * bit 0: any
	 * bit 1: all
	 * bit 2: policy
	 * bits 3-7: reserved
	 */
	u8 reserved01;
	u8 reserved02;
	__be16 reserved03;
	__be32 reserved04;
};

/*
 * Additonal Datastores feature
 *
 * code == 0x0202
 */
struct d0_datastore_table {
	__be16 reserved01;
	__be16 max_tables;
	__be32 max_size_tables;
	__be32 table_size_alignment;
};

/*
 * OPAL 2.0 feature
 *
 * code == 0x0203
 */
struct d0_opal_v200 {
	__be16 baseComID;
	__be16 numComIDs;
	/* range_crossing:
	 * bits 1-6: reserved
	 * bit 0: range crossing
	 */
	u8 range_crossing;
	/* num_locking_admin_auth:
	 * not aligned to 16 bits, so use two u8.
	 * stored in big endian:
	 * 0: MSB
	 * 1: LSB
	 */
	u8 num_locking_admin_auth[2];
	/* num_locking_user_auth:
	 * not aligned to 16 bits, so use two u8.
	 * stored in big endian:
	 * 0: MSB
	 * 1: LSB
	 */
	u8 num_locking_user_auth[2];
	u8 initialPIN;
	u8 revertedPIN;
	u8 reserved01;
	__be32 reserved02;
};

/* Union of features used to parse the discovery 0 response */
struct d0_features {
	__be16 code;
	/*
	 * r_version bits:
	 * bits 4-7: version
	 * bits 0-3: reserved
	 */
	u8 r_version;
	u8 length;
	u8 features[];
};

#endif /* _OPAL_PROTO_H */