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