root/block/opal_proto.h

INCLUDED FROM

   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_UID_LENGTH 8
  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         /* 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 /* Packets derived from:
 209  * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
 210  * Secion: 3.2.3 ComPackets, Packets & Subpackets
 211  */
 212 
 213 /* Comm Packet (header) for transmissions. */
 214 struct opal_compacket {
 215         __be32 reserved0;
 216         u8 extendedComID[4];
 217         __be32 outstandingData;
 218         __be32 minTransfer;
 219         __be32 length;
 220 };
 221 
 222 /* Packet structure. */
 223 struct opal_packet {
 224         __be32 tsn;
 225         __be32 hsn;
 226         __be32 seq_number;
 227         __be16 reserved0;
 228         __be16 ack_type;
 229         __be32 acknowledgment;
 230         __be32 length;
 231 };
 232 
 233 /* Data sub packet header */
 234 struct opal_data_subpacket {
 235         u8 reserved0[6];
 236         __be16 kind;
 237         __be32 length;
 238 };
 239 
 240 /* header of a response */
 241 struct opal_header {
 242         struct opal_compacket cp;
 243         struct opal_packet pkt;
 244         struct opal_data_subpacket subpkt;
 245 };
 246 
 247 #define FC_TPER       0x0001
 248 #define FC_LOCKING    0x0002
 249 #define FC_GEOMETRY   0x0003
 250 #define FC_ENTERPRISE 0x0100
 251 #define FC_DATASTORE  0x0202
 252 #define FC_SINGLEUSER 0x0201
 253 #define FC_OPALV100   0x0200
 254 #define FC_OPALV200   0x0203
 255 
 256 /*
 257  * The Discovery 0 Header. As defined in
 258  * Opal SSC Documentation
 259  * Section: 3.3.5 Capability Discovery
 260  */
 261 struct d0_header {
 262         __be32 length; /* the length of the header 48 in 2.00.100 */
 263         __be32 revision; /**< revision of the header 1 in 2.00.100 */
 264         __be32 reserved01;
 265         __be32 reserved02;
 266         /*
 267          * the remainder of the structure is vendor specific and will not be
 268          * addressed now
 269          */
 270         u8 ignored[32];
 271 };
 272 
 273 /*
 274  * TPer Feature Descriptor. Contains flags indicating support for the
 275  * TPer features described in the OPAL specification. The names match the
 276  * OPAL terminology
 277  *
 278  * code == 0x001 in 2.00.100
 279  */
 280 struct d0_tper_features {
 281         /*
 282          * supported_features bits:
 283          * bit 7: reserved
 284          * bit 6: com ID management
 285          * bit 5: reserved
 286          * bit 4: streaming support
 287          * bit 3: buffer management
 288          * bit 2: ACK/NACK
 289          * bit 1: async
 290          * bit 0: sync
 291          */
 292         u8 supported_features;
 293         /*
 294          * bytes 5 through 15 are reserved, but we represent the first 3 as
 295          * u8 to keep the other two 32bits integers aligned.
 296          */
 297         u8 reserved01[3];
 298         __be32 reserved02;
 299         __be32 reserved03;
 300 };
 301 
 302 /*
 303  * Locking Feature Descriptor. Contains flags indicating support for the
 304  * locking features described in the OPAL specification. The names match the
 305  * OPAL terminology
 306  *
 307  * code == 0x0002 in 2.00.100
 308  */
 309 struct d0_locking_features {
 310         /*
 311          * supported_features bits:
 312          * bits 6-7: reserved
 313          * bit 5: MBR done
 314          * bit 4: MBR enabled
 315          * bit 3: media encryption
 316          * bit 2: locked
 317          * bit 1: locking enabled
 318          * bit 0: locking supported
 319          */
 320         u8 supported_features;
 321         /*
 322          * bytes 5 through 15 are reserved, but we represent the first 3 as
 323          * u8 to keep the other two 32bits integers aligned.
 324          */
 325         u8 reserved01[3];
 326         __be32 reserved02;
 327         __be32 reserved03;
 328 };
 329 
 330 /*
 331  * Geometry Feature Descriptor. Contains flags indicating support for the
 332  * geometry features described in the OPAL specification. The names match the
 333  * OPAL terminology
 334  *
 335  * code == 0x0003 in 2.00.100
 336  */
 337 struct d0_geometry_features {
 338         /*
 339          * skip 32 bits from header, needed to align the struct to 64 bits.
 340          */
 341         u8 header[4];
 342         /*
 343          * reserved01:
 344          * bits 1-6: reserved
 345          * bit 0: align
 346          */
 347         u8 reserved01;
 348         u8 reserved02[7];
 349         __be32 logical_block_size;
 350         __be64 alignment_granularity;
 351         __be64 lowest_aligned_lba;
 352 };
 353 
 354 /*
 355  * Enterprise SSC Feature
 356  *
 357  * code == 0x0100
 358  */
 359 struct d0_enterprise_ssc {
 360         __be16 baseComID;
 361         __be16 numComIDs;
 362         /* range_crossing:
 363          * bits 1-6: reserved
 364          * bit 0: range crossing
 365          */
 366         u8 range_crossing;
 367         u8 reserved01;
 368         __be16 reserved02;
 369         __be32 reserved03;
 370         __be32 reserved04;
 371 };
 372 
 373 /*
 374  * Opal V1 feature
 375  *
 376  * code == 0x0200
 377  */
 378 struct d0_opal_v100 {
 379         __be16 baseComID;
 380         __be16 numComIDs;
 381 };
 382 
 383 /*
 384  * Single User Mode feature
 385  *
 386  * code == 0x0201
 387  */
 388 struct d0_single_user_mode {
 389         __be32 num_locking_objects;
 390         /* reserved01:
 391          * bit 0: any
 392          * bit 1: all
 393          * bit 2: policy
 394          * bits 3-7: reserved
 395          */
 396         u8 reserved01;
 397         u8 reserved02;
 398         __be16 reserved03;
 399         __be32 reserved04;
 400 };
 401 
 402 /*
 403  * Additonal Datastores feature
 404  *
 405  * code == 0x0202
 406  */
 407 struct d0_datastore_table {
 408         __be16 reserved01;
 409         __be16 max_tables;
 410         __be32 max_size_tables;
 411         __be32 table_size_alignment;
 412 };
 413 
 414 /*
 415  * OPAL 2.0 feature
 416  *
 417  * code == 0x0203
 418  */
 419 struct d0_opal_v200 {
 420         __be16 baseComID;
 421         __be16 numComIDs;
 422         /* range_crossing:
 423          * bits 1-6: reserved
 424          * bit 0: range crossing
 425          */
 426         u8 range_crossing;
 427         /* num_locking_admin_auth:
 428          * not aligned to 16 bits, so use two u8.
 429          * stored in big endian:
 430          * 0: MSB
 431          * 1: LSB
 432          */
 433         u8 num_locking_admin_auth[2];
 434         /* num_locking_user_auth:
 435          * not aligned to 16 bits, so use two u8.
 436          * stored in big endian:
 437          * 0: MSB
 438          * 1: LSB
 439          */
 440         u8 num_locking_user_auth[2];
 441         u8 initialPIN;
 442         u8 revertedPIN;
 443         u8 reserved01;
 444         __be32 reserved02;
 445 };
 446 
 447 /* Union of features used to parse the discovery 0 response */
 448 struct d0_features {
 449         __be16 code;
 450         /*
 451          * r_version bits:
 452          * bits 4-7: version
 453          * bits 0-3: reserved
 454          */
 455         u8 r_version;
 456         u8 length;
 457         u8 features[];
 458 };
 459 
 460 #endif /* _OPAL_PROTO_H */