block/opal_proto.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright © 2016 Intel Corporation
   4  *
   5  * Authors:
   6  *    Rafael Antognolli <rafael.antognolli@intel.com>
   7  *    Scott  Bauer      <scott.bauer@intel.com>
   8  */
   9 #include <linux/types.h>
  10
  11 #ifndef _OPAL_PROTO_H
  12 #define _OPAL_PROTO_H
  13
  14 /*
  15  * These constant values come from:
  16  * SPC-4 section
  17  * 6.30 SECURITY PROTOCOL IN command / table 265.
  18  */
  19 enum {
  20         TCG_SECP_00 = 0,
  21         TCG_SECP_01,
  22 };
  23
  24 /*
  25  * Token defs derived from:
  26  * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
  27  * 3.2.2 Data Stream Encoding
  28  */
  29 enum opal_response_token {
  30         OPAL_DTA_TOKENID_BYTESTRING = 0xe0,
  31         OPAL_DTA_TOKENID_SINT = 0xe1,
  32         OPAL_DTA_TOKENID_UINT = 0xe2,
  33         OPAL_DTA_TOKENID_TOKEN = 0xe3, /* actual token is returned */
  34         OPAL_DTA_TOKENID_INVALID = 0X0
  35 };
  36
  37 #define DTAERROR_NO_METHOD_STATUS 0x89
  38 #define GENERIC_HOST_SESSION_NUM 0x41
  39 #define FIRST_TPER_SESSION_NUM  4096
  40
  41 #define TPER_SYNC_SUPPORTED 0x01
  42 /* FC_LOCKING features */
  43 #define LOCKING_SUPPORTED_MASK 0x01
  44 #define LOCKING_ENABLED_MASK 0x02
  45 #define LOCKED_MASK 0x04
  46 #define MBR_ENABLED_MASK 0x10
  47 #define MBR_DONE_MASK 0x20
  48
  49 #define TINY_ATOM_DATA_MASK 0x3F
  50 #define TINY_ATOM_SIGNED 0x40
  51
  52 #define SHORT_ATOM_ID 0x80
  53 #define SHORT_ATOM_BYTESTRING 0x20
  54 #define SHORT_ATOM_SIGNED 0x10
  55 #define SHORT_ATOM_LEN_MASK 0xF
  56
  57 #define MEDIUM_ATOM_ID 0xC0
  58 #define MEDIUM_ATOM_BYTESTRING 0x10
  59 #define MEDIUM_ATOM_SIGNED 0x8
  60 #define MEDIUM_ATOM_LEN_MASK 0x7
  61
  62 #define LONG_ATOM_ID 0xe0
  63 #define LONG_ATOM_BYTESTRING 0x2
  64 #define LONG_ATOM_SIGNED 0x1
  65
  66 /* Derived from TCG Core spec 2.01 Section:
  67  * 3.2.2.1
  68  * Data Type
  69  */
  70 #define TINY_ATOM_BYTE   0x7F
  71 #define SHORT_ATOM_BYTE  0xBF
  72 #define MEDIUM_ATOM_BYTE 0xDF
  73 #define LONG_ATOM_BYTE   0xE3
  74 #define EMPTY_ATOM_BYTE  0xFF
  75
  76 #define OPAL_INVAL_PARAM 12
  77 #define OPAL_MANUFACTURED_INACTIVE 0x08
  78 #define OPAL_DISCOVERY_COMID 0x0001
  79
  80 #define LOCKING_RANGE_NON_GLOBAL 0x03
  81 /*
  82  * User IDs used in the TCG storage SSCs
  83  * Derived from: TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
  84  * Section: 6.3 Assigned UIDs
  85  */
  86 #define OPAL_METHOD_LENGTH 8
  87 #define OPAL_MSID_KEYLEN 15
  88 #define OPAL_UID_LENGTH_HALF 4
  89
  90 /*
  91  * Boolean operators from TCG Core spec 2.01 Section:
  92  * 5.1.3.11
  93  * Table 61
  94  */
  95 #define OPAL_BOOLEAN_AND 0
  96 #define OPAL_BOOLEAN_OR  1
  97 #define OPAL_BOOLEAN_NOT 2
  98
  99 /* Enum to index OPALUID array */
 100 enum opal_uid {
 101         /* users */
 102         OPAL_SMUID_UID,
 103         OPAL_THISSP_UID,
 104         OPAL_ADMINSP_UID,
 105         OPAL_LOCKINGSP_UID,
 106         OPAL_ENTERPRISE_LOCKINGSP_UID,
 107         OPAL_ANYBODY_UID,
 108         OPAL_SID_UID,
 109         OPAL_ADMIN1_UID,
 110         OPAL_USER1_UID,
 111         OPAL_USER2_UID,
 112         OPAL_PSID_UID,
 113         OPAL_ENTERPRISE_BANDMASTER0_UID,
 114         OPAL_ENTERPRISE_ERASEMASTER_UID,
 115         /* tables */
 116         OPAL_TABLE_TABLE,
 117         OPAL_LOCKINGRANGE_GLOBAL,
 118         OPAL_LOCKINGRANGE_ACE_START_TO_KEY,
 119         OPAL_LOCKINGRANGE_ACE_RDLOCKED,
 120         OPAL_LOCKINGRANGE_ACE_WRLOCKED,
 121         OPAL_MBRCONTROL,
 122         OPAL_MBR,
 123         OPAL_AUTHORITY_TABLE,
 124         OPAL_C_PIN_TABLE,
 125         OPAL_LOCKING_INFO_TABLE,
 126         OPAL_ENTERPRISE_LOCKING_INFO_TABLE,
 127         OPAL_DATASTORE,
 128         /* C_PIN_TABLE object ID's */
 129         OPAL_C_PIN_MSID,
 130         OPAL_C_PIN_SID,
 131         OPAL_C_PIN_ADMIN1,
 132         /* half UID's (only first 4 bytes used) */
 133         OPAL_HALF_UID_AUTHORITY_OBJ_REF,
 134         OPAL_HALF_UID_BOOLEAN_ACE,
 135         /* omitted optional parameter */
 136         OPAL_UID_HEXFF,
 137 };
 138
 139 /* Enum for indexing the OPALMETHOD array */
 140 enum opal_method {
 141         OPAL_PROPERTIES,
 142         OPAL_STARTSESSION,
 143         OPAL_REVERT,
 144         OPAL_ACTIVATE,
 145         OPAL_EGET,
 146         OPAL_ESET,
 147         OPAL_NEXT,
 148         OPAL_EAUTHENTICATE,
 149         OPAL_GETACL,
 150         OPAL_GENKEY,
 151         OPAL_REVERTSP,
 152         OPAL_GET,
 153         OPAL_SET,
 154         OPAL_AUTHENTICATE,
 155         OPAL_RANDOM,
 156         OPAL_ERASE,
 157 };
 158
 159 enum opal_token {
 160         /* Boolean */
 161         OPAL_TRUE = 0x01,
 162         OPAL_FALSE = 0x00,
 163         OPAL_BOOLEAN_EXPR = 0x03,
 164         /* cellblocks */
 165         OPAL_TABLE = 0x00,
 166         OPAL_STARTROW = 0x01,
 167         OPAL_ENDROW = 0x02,
 168         OPAL_STARTCOLUMN = 0x03,
 169         OPAL_ENDCOLUMN = 0x04,
 170         OPAL_VALUES = 0x01,
 171         /* table table */
 172         OPAL_TABLE_UID = 0x00,
 173         OPAL_TABLE_NAME = 0x01,
 174         OPAL_TABLE_COMMON = 0x02,
 175         OPAL_TABLE_TEMPLATE = 0x03,
 176         OPAL_TABLE_KIND = 0x04,
 177         OPAL_TABLE_COLUMN = 0x05,
 178         OPAL_TABLE_COLUMNS = 0x06,
 179         OPAL_TABLE_ROWS = 0x07,
 180         OPAL_TABLE_ROWS_FREE = 0x08,
 181         OPAL_TABLE_ROW_BYTES = 0x09,
 182         OPAL_TABLE_LASTID = 0x0A,
 183         OPAL_TABLE_MIN = 0x0B,
 184         OPAL_TABLE_MAX = 0x0C,
 185         /* authority table */
 186         OPAL_PIN = 0x03,
 187         /* locking tokens */
 188         OPAL_RANGESTART = 0x03,
 189         OPAL_RANGELENGTH = 0x04,
 190         OPAL_READLOCKENABLED = 0x05,
 191         OPAL_WRITELOCKENABLED = 0x06,
 192         OPAL_READLOCKED = 0x07,
 193         OPAL_WRITELOCKED = 0x08,
 194         OPAL_ACTIVEKEY = 0x0A,
 195         /* lockingsp table */
 196         OPAL_LIFECYCLE = 0x06,
 197         /* locking info table */
 198         OPAL_MAXRANGES = 0x04,
 199         /* mbr control */
 200         OPAL_MBRENABLE = 0x01,
 201         OPAL_MBRDONE = 0x02,
 202         /* properties */
 203         OPAL_HOSTPROPERTIES = 0x00,
 204         /* atoms */
 205         OPAL_STARTLIST = 0xf0,
 206         OPAL_ENDLIST = 0xf1,
 207         OPAL_STARTNAME = 0xf2,
 208         OPAL_ENDNAME = 0xf3,
 209         OPAL_CALL = 0xf8,
 210         OPAL_ENDOFDATA = 0xf9,
 211         OPAL_ENDOFSESSION = 0xfa,
 212         OPAL_STARTTRANSACTON = 0xfb,
 213         OPAL_ENDTRANSACTON = 0xfC,
 214         OPAL_EMPTYATOM = 0xff,
 215         OPAL_WHERE = 0x00,
 216 };
 217
 218 /* Locking state for a locking range */
 219 enum opal_lockingstate {
 220         OPAL_LOCKING_READWRITE = 0x01,
 221         OPAL_LOCKING_READONLY = 0x02,
 222         OPAL_LOCKING_LOCKED = 0x03,
 223 };
 224
 225 enum opal_parameter {
 226         OPAL_SUM_SET_LIST = 0x060000,
 227 };
 228
 229 enum opal_revertlsp {
 230         OPAL_KEEP_GLOBAL_RANGE_KEY = 0x060000,
 231 };
 232
 233 /* Packets derived from:
 234  * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
 235  * Secion: 3.2.3 ComPackets, Packets & Subpackets
 236  */
 237
 238 /* Comm Packet (header) for transmissions. */
 239 struct opal_compacket {
 240         __be32 reserved0;
 241         u8 extendedComID[4];
 242         __be32 outstandingData;
 243         __be32 minTransfer;
 244         __be32 length;
 245 };
 246
 247 /* Packet structure. */
 248 struct opal_packet {
 249         __be32 tsn;
 250         __be32 hsn;
 251         __be32 seq_number;
 252         __be16 reserved0;
 253         __be16 ack_type;
 254         __be32 acknowledgment;
 255         __be32 length;
 256 };
 257
 258 /* Data sub packet header */
 259 struct opal_data_subpacket {
 260         u8 reserved0[6];
 261         __be16 kind;
 262         __be32 length;
 263 };
 264
 265 /* header of a response */
 266 struct opal_header {
 267         struct opal_compacket cp;
 268         struct opal_packet pkt;
 269         struct opal_data_subpacket subpkt;
 270 };
 271
 272 #define FC_TPER       0x0001
 273 #define FC_LOCKING    0x0002
 274 #define FC_GEOMETRY   0x0003
 275 #define FC_ENTERPRISE 0x0100
 276 #define FC_DATASTORE  0x0202
 277 #define FC_SINGLEUSER 0x0201
 278 #define FC_OPALV100   0x0200
 279 #define FC_OPALV200   0x0203
 280
 281 /*
 282  * The Discovery 0 Header. As defined in
 283  * Opal SSC Documentation
 284  * Section: 3.3.5 Capability Discovery
 285  */
 286 struct d0_header {
 287         __be32 length; /* the length of the header 48 in 2.00.100 */
 288         __be32 revision; /**< revision of the header 1 in 2.00.100 */
 289         __be32 reserved01;
 290         __be32 reserved02;
 291         /*
 292          * the remainder of the structure is vendor specific and will not be
 293          * addressed now
 294          */
 295         u8 ignored[32];
 296 };
 297
 298 /*
 299  * TPer Feature Descriptor. Contains flags indicating support for the
 300  * TPer features described in the OPAL specification. The names match the
 301  * OPAL terminology
 302  *
 303  * code == 0x001 in 2.00.100
 304  */
 305 struct d0_tper_features {
 306         /*
 307          * supported_features bits:
 308          * bit 7: reserved
 309          * bit 6: com ID management
 310          * bit 5: reserved
 311          * bit 4: streaming support
 312          * bit 3: buffer management
 313          * bit 2: ACK/NACK
 314          * bit 1: async
 315          * bit 0: sync
 316          */
 317         u8 supported_features;
 318         /*
 319          * bytes 5 through 15 are reserved, but we represent the first 3 as
 320          * u8 to keep the other two 32bits integers aligned.
 321          */
 322         u8 reserved01[3];
 323         __be32 reserved02;
 324         __be32 reserved03;
 325 };
 326
 327 /*
 328  * Locking Feature Descriptor. Contains flags indicating support for the
 329  * locking features described in the OPAL specification. The names match the
 330  * OPAL terminology
 331  *
 332  * code == 0x0002 in 2.00.100
 333  */
 334 struct d0_locking_features {
 335         /*
 336          * supported_features bits:
 337          * bits 6-7: reserved
 338          * bit 5: MBR done
 339          * bit 4: MBR enabled
 340          * bit 3: media encryption
 341          * bit 2: locked
 342          * bit 1: locking enabled
 343          * bit 0: locking supported
 344          */
 345         u8 supported_features;
 346         /*
 347          * bytes 5 through 15 are reserved, but we represent the first 3 as
 348          * u8 to keep the other two 32bits integers aligned.
 349          */
 350         u8 reserved01[3];
 351         __be32 reserved02;
 352         __be32 reserved03;
 353 };
 354
 355 /*
 356  * Geometry Feature Descriptor. Contains flags indicating support for the
 357  * geometry features described in the OPAL specification. The names match the
 358  * OPAL terminology
 359  *
 360  * code == 0x0003 in 2.00.100
 361  */
 362 struct d0_geometry_features {
 363         /*
 364          * skip 32 bits from header, needed to align the struct to 64 bits.
 365          */
 366         u8 header[4];
 367         /*
 368          * reserved01:
 369          * bits 1-6: reserved
 370          * bit 0: align
 371          */
 372         u8 reserved01;
 373         u8 reserved02[7];
 374         __be32 logical_block_size;
 375         __be64 alignment_granularity;
 376         __be64 lowest_aligned_lba;
 377 };
 378
 379 /*
 380  * Enterprise SSC Feature
 381  *
 382  * code == 0x0100
 383  */
 384 struct d0_enterprise_ssc {
 385         __be16 baseComID;
 386         __be16 numComIDs;
 387         /* range_crossing:
 388          * bits 1-6: reserved
 389          * bit 0: range crossing
 390          */
 391         u8 range_crossing;
 392         u8 reserved01;
 393         __be16 reserved02;
 394         __be32 reserved03;
 395         __be32 reserved04;
 396 };
 397
 398 /*
 399  * Opal V1 feature
 400  *
 401  * code == 0x0200
 402  */
 403 struct d0_opal_v100 {
 404         __be16 baseComID;
 405         __be16 numComIDs;
 406 };
 407
 408 /*
 409  * Single User Mode feature
 410  *
 411  * code == 0x0201
 412  */
 413 struct d0_single_user_mode {
 414         __be32 num_locking_objects;
 415         /* reserved01:
 416          * bit 0: any
 417          * bit 1: all
 418          * bit 2: policy
 419          * bits 3-7: reserved
 420          */
 421         u8 reserved01;
 422         u8 reserved02;
 423         __be16 reserved03;
 424         __be32 reserved04;
 425 };
 426
 427 /*
 428  * Additonal Datastores feature
 429  *
 430  * code == 0x0202
 431  */
 432 struct d0_datastore_table {
 433         __be16 reserved01;
 434         __be16 max_tables;
 435         __be32 max_size_tables;
 436         __be32 table_size_alignment;
 437 };
 438
 439 /*
 440  * OPAL 2.0 feature
 441  *
 442  * code == 0x0203
 443  */
 444 struct d0_opal_v200 {
 445         __be16 baseComID;
 446         __be16 numComIDs;
 447         /* range_crossing:
 448          * bits 1-6: reserved
 449          * bit 0: range crossing
 450          */
 451         u8 range_crossing;
 452         /* num_locking_admin_auth:
 453          * not aligned to 16 bits, so use two u8.
 454          * stored in big endian:
 455          * 0: MSB
 456          * 1: LSB
 457          */
 458         u8 num_locking_admin_auth[2];
 459         /* num_locking_user_auth:
 460          * not aligned to 16 bits, so use two u8.
 461          * stored in big endian:
 462          * 0: MSB
 463          * 1: LSB
 464          */
 465         u8 num_locking_user_auth[2];
 466         u8 initialPIN;
 467         u8 revertedPIN;
 468         u8 reserved01;
 469         __be32 reserved02;
 470 };
 471
 472 /* Union of features used to parse the discovery 0 response */
 473 struct d0_features {
 474         __be16 code;
 475         /*
 476          * r_version bits:
 477          * bits 4-7: version
 478          * bits 0-3: reserved
 479          */
 480         u8 r_version;
 481         u8 length;
 482         u8 features[];
 483 };
 484
 485 #endif /* _OPAL_PROTO_H */