block/opal_proto.h

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