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