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_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_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         /* C_PIN_TABLE object ID's */
 111         OPAL_C_PIN_MSID,
 112         OPAL_C_PIN_SID,
 113         OPAL_C_PIN_ADMIN1,
 114         /* half UID's (only first 4 bytes used) */
 115         OPAL_HALF_UID_AUTHORITY_OBJ_REF,
 116         OPAL_HALF_UID_BOOLEAN_ACE,
 117         /* omitted optional parameter */
 118         OPAL_UID_HEXFF,
 119 };
 120
 121 #define OPAL_METHOD_LENGTH 8
 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         /* authority table */
 156         OPAL_PIN = 0x03,
 157         /* locking tokens */
 158         OPAL_RANGESTART = 0x03,
 159         OPAL_RANGELENGTH = 0x04,
 160         OPAL_READLOCKENABLED = 0x05,
 161         OPAL_WRITELOCKENABLED = 0x06,
 162         OPAL_READLOCKED = 0x07,
 163         OPAL_WRITELOCKED = 0x08,
 164         OPAL_ACTIVEKEY = 0x0A,
 165         /* lockingsp table */
 166         OPAL_LIFECYCLE = 0x06,
 167         /* locking info table */
 168         OPAL_MAXRANGES = 0x04,
 169          /* mbr control */
 170         OPAL_MBRENABLE = 0x01,
 171         OPAL_MBRDONE = 0x02,
 172         /* properties */
 173         OPAL_HOSTPROPERTIES = 0x00,
 174         /* atoms */
 175         OPAL_STARTLIST = 0xf0,
 176         OPAL_ENDLIST = 0xf1,
 177         OPAL_STARTNAME = 0xf2,
 178         OPAL_ENDNAME = 0xf3,
 179         OPAL_CALL = 0xf8,
 180         OPAL_ENDOFDATA = 0xf9,
 181         OPAL_ENDOFSESSION = 0xfa,
 182         OPAL_STARTTRANSACTON = 0xfb,
 183         OPAL_ENDTRANSACTON = 0xfC,
 184         OPAL_EMPTYATOM = 0xff,
 185         OPAL_WHERE = 0x00,
 186 };
 187
 188 /* Locking state for a locking range */
 189 enum opal_lockingstate {
 190         OPAL_LOCKING_READWRITE = 0x01,
 191         OPAL_LOCKING_READONLY = 0x02,
 192         OPAL_LOCKING_LOCKED = 0x03,
 193 };
 194
 195 /* Packets derived from:
 196  * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
 197  * Secion: 3.2.3 ComPackets, Packets & Subpackets
 198  */
 199
 200 /* Comm Packet (header) for transmissions. */
 201 struct opal_compacket {
 202         __be32 reserved0;
 203         u8 extendedComID[4];
 204         __be32 outstandingData;
 205         __be32 minTransfer;
 206         __be32 length;
 207 };
 208
 209 /* Packet structure. */
 210 struct opal_packet {
 211         __be32 tsn;
 212         __be32 hsn;
 213         __be32 seq_number;
 214         __be16 reserved0;
 215         __be16 ack_type;
 216         __be32 acknowledgment;
 217         __be32 length;
 218 };
 219
 220 /* Data sub packet header */
 221 struct opal_data_subpacket {
 222         u8 reserved0[6];
 223         __be16 kind;
 224         __be32 length;
 225 };
 226
 227 /* header of a response */
 228 struct opal_header {
 229         struct opal_compacket cp;
 230         struct opal_packet pkt;
 231         struct opal_data_subpacket subpkt;
 232 };
 233
 234 #define FC_TPER       0x0001
 235 #define FC_LOCKING    0x0002
 236 #define FC_GEOMETRY   0x0003
 237 #define FC_ENTERPRISE 0x0100
 238 #define FC_DATASTORE  0x0202
 239 #define FC_SINGLEUSER 0x0201
 240 #define FC_OPALV100   0x0200
 241 #define FC_OPALV200   0x0203
 242
 243 /*
 244  * The Discovery 0 Header. As defined in
 245  * Opal SSC Documentation
 246  * Section: 3.3.5 Capability Discovery
 247  */
 248 struct d0_header {
 249         __be32 length; /* the length of the header 48 in 2.00.100 */
 250         __be32 revision; /**< revision of the header 1 in 2.00.100 */
 251         __be32 reserved01;
 252         __be32 reserved02;
 253         /*
 254          * the remainder of the structure is vendor specific and will not be
 255          * addressed now
 256          */
 257         u8 ignored[32];
 258 };
 259
 260 /*
 261  * TPer Feature Descriptor. Contains flags indicating support for the
 262  * TPer features described in the OPAL specification. The names match the
 263  * OPAL terminology
 264  *
 265  * code == 0x001 in 2.00.100
 266  */
 267 struct d0_tper_features {
 268         /*
 269          * supported_features bits:
 270          * bit 7: reserved
 271          * bit 6: com ID management
 272          * bit 5: reserved
 273          * bit 4: streaming support
 274          * bit 3: buffer management
 275          * bit 2: ACK/NACK
 276          * bit 1: async
 277          * bit 0: sync
 278          */
 279         u8 supported_features;
 280         /*
 281          * bytes 5 through 15 are reserved, but we represent the first 3 as
 282          * u8 to keep the other two 32bits integers aligned.
 283          */
 284         u8 reserved01[3];
 285         __be32 reserved02;
 286         __be32 reserved03;
 287 };
 288
 289 /*
 290  * Locking Feature Descriptor. Contains flags indicating support for the
 291  * locking features described in the OPAL specification. The names match the
 292  * OPAL terminology
 293  *
 294  * code == 0x0002 in 2.00.100
 295  */
 296 struct d0_locking_features {
 297         /*
 298          * supported_features bits:
 299          * bits 6-7: reserved
 300          * bit 5: MBR done
 301          * bit 4: MBR enabled
 302          * bit 3: media encryption
 303          * bit 2: locked
 304          * bit 1: locking enabled
 305          * bit 0: locking supported
 306          */
 307         u8 supported_features;
 308         /*
 309          * bytes 5 through 15 are reserved, but we represent the first 3 as
 310          * u8 to keep the other two 32bits integers aligned.
 311          */
 312         u8 reserved01[3];
 313         __be32 reserved02;
 314         __be32 reserved03;
 315 };
 316
 317 /*
 318  * Geometry Feature Descriptor. Contains flags indicating support for the
 319  * geometry features described in the OPAL specification. The names match the
 320  * OPAL terminology
 321  *
 322  * code == 0x0003 in 2.00.100
 323  */
 324 struct d0_geometry_features {
 325         /*
 326          * skip 32 bits from header, needed to align the struct to 64 bits.
 327          */
 328         u8 header[4];
 329         /*
 330          * reserved01:
 331          * bits 1-6: reserved
 332          * bit 0: align
 333          */
 334         u8 reserved01;
 335         u8 reserved02[7];
 336         __be32 logical_block_size;
 337         __be64 alignment_granularity;
 338         __be64 lowest_aligned_lba;
 339 };
 340
 341 /*
 342  * Enterprise SSC Feature
 343  *
 344  * code == 0x0100
 345  */
 346 struct d0_enterprise_ssc {
 347         __be16 baseComID;
 348         __be16 numComIDs;
 349         /* range_crossing:
 350          * bits 1-6: reserved
 351          * bit 0: range crossing
 352          */
 353         u8 range_crossing;
 354         u8 reserved01;
 355         __be16 reserved02;
 356         __be32 reserved03;
 357         __be32 reserved04;
 358 };
 359
 360 /*
 361  * Opal V1 feature
 362  *
 363  * code == 0x0200
 364  */
 365 struct d0_opal_v100 {
 366         __be16 baseComID;
 367         __be16 numComIDs;
 368 };
 369
 370 /*
 371  * Single User Mode feature
 372  *
 373  * code == 0x0201
 374  */
 375 struct d0_single_user_mode {
 376         __be32 num_locking_objects;
 377         /* reserved01:
 378          * bit 0: any
 379          * bit 1: all
 380          * bit 2: policy
 381          * bits 3-7: reserved
 382          */
 383         u8 reserved01;
 384         u8 reserved02;
 385         __be16 reserved03;
 386         __be32 reserved04;
 387 };
 388
 389 /*
 390  * Additonal Datastores feature
 391  *
 392  * code == 0x0202
 393  */
 394 struct d0_datastore_table {
 395         __be16 reserved01;
 396         __be16 max_tables;
 397         __be32 max_size_tables;
 398         __be32 table_size_alignment;
 399 };
 400
 401 /*
 402  * OPAL 2.0 feature
 403  *
 404  * code == 0x0203
 405  */
 406 struct d0_opal_v200 {
 407         __be16 baseComID;
 408         __be16 numComIDs;
 409         /* range_crossing:
 410          * bits 1-6: reserved
 411          * bit 0: range crossing
 412          */
 413         u8 range_crossing;
 414         /* num_locking_admin_auth:
 415          * not aligned to 16 bits, so use two u8.
 416          * stored in big endian:
 417          * 0: MSB
 418          * 1: LSB
 419          */
 420         u8 num_locking_admin_auth[2];
 421         /* num_locking_user_auth:
 422          * not aligned to 16 bits, so use two u8.
 423          * stored in big endian:
 424          * 0: MSB
 425          * 1: LSB
 426          */
 427         u8 num_locking_user_auth[2];
 428         u8 initialPIN;
 429         u8 revertedPIN;
 430         u8 reserved01;
 431         __be32 reserved02;
 432 };
 433
 434 /* Union of features used to parse the discovery 0 response */
 435 struct d0_features {
 436         __be16 code;
 437         /*
 438          * r_version bits:
 439          * bits 4-7: version
 440          * bits 0-3: reserved
 441          */
 442         u8 r_version;
 443         u8 length;
 444         u8 features[];
 445 };
 446
 447 #endif /* _OPAL_PROTO_H */