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