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be6c1529c1
Extend the tpm library with support for single authorized (AUTH1) commands as specified in the TCG Main Specification 1.2. (The internally used helper functions are implemented in a way that they could also be used for double authorized commands if someone needs it.) Provide enums with the return codes from the TCG Main specification. For now only a single OIAP session is supported. OIAP authorized version of the commands TPM_LoadKey2 and TPM_GetPubKey are provided. Both features are available using the 'tpm' command, too. Authorized commands are enabled with CONFIG_TPM_AUTH_SESSIONS. (Note that this also requires CONFIG_SHA1 to be enabled.) Signed-off-by: Reinhard Pfau <reinhard.pfau@gdsys.cc> Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> Acked-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Andy Fleming <afleming@freescale.com>
379 lines
12 KiB
C
379 lines
12 KiB
C
/*
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* Copyright (c) 2013 The Chromium OS Authors.
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* Coypright (c) 2013 Guntermann & Drunck GmbH
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __TPM_H
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#define __TPM_H
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#include <tis.h>
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/*
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* Here is a partial implementation of TPM commands. Please consult TCG Main
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* Specification for definitions of TPM commands.
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*/
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enum tpm_startup_type {
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TPM_ST_CLEAR = 0x0001,
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TPM_ST_STATE = 0x0002,
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TPM_ST_DEACTIVATED = 0x0003,
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};
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enum tpm_physical_presence {
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TPM_PHYSICAL_PRESENCE_HW_DISABLE = 0x0200,
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TPM_PHYSICAL_PRESENCE_CMD_DISABLE = 0x0100,
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TPM_PHYSICAL_PRESENCE_LIFETIME_LOCK = 0x0080,
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TPM_PHYSICAL_PRESENCE_HW_ENABLE = 0x0040,
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TPM_PHYSICAL_PRESENCE_CMD_ENABLE = 0x0020,
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TPM_PHYSICAL_PRESENCE_NOTPRESENT = 0x0010,
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TPM_PHYSICAL_PRESENCE_PRESENT = 0x0008,
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TPM_PHYSICAL_PRESENCE_LOCK = 0x0004,
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};
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enum tpm_nv_index {
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TPM_NV_INDEX_LOCK = 0xffffffff,
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TPM_NV_INDEX_0 = 0x00000000,
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TPM_NV_INDEX_DIR = 0x10000001,
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};
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/**
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* TPM return codes as defined in the TCG Main specification
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* (TPM Main Part 2 Structures; Specification version 1.2)
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*/
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enum tpm_return_code {
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TPM_BASE = 0x00000000,
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TPM_NON_FATAL = 0x00000800,
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TPM_SUCCESS = TPM_BASE,
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/* TPM-defined fatal error codes */
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TPM_AUTHFAIL = TPM_BASE + 1,
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TPM_BADINDEX = TPM_BASE + 2,
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TPM_BAD_PARAMETER = TPM_BASE + 3,
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TPM_AUDITFAILURE = TPM_BASE + 4,
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TPM_CLEAR_DISABLED = TPM_BASE + 5,
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TPM_DEACTIVATED = TPM_BASE + 6,
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TPM_DISABLED = TPM_BASE + 7,
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TPM_DISABLED_CMD = TPM_BASE + 8,
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TPM_FAIL = TPM_BASE + 9,
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TPM_BAD_ORDINAL = TPM_BASE + 10,
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TPM_INSTALL_DISABLED = TPM_BASE + 11,
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TPM_INVALID_KEYHANDLE = TPM_BASE + 12,
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TPM_KEYNOTFOUND = TPM_BASE + 13,
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TPM_INAPPROPRIATE_ENC = TPM_BASE + 14,
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TPM_MIGRATE_FAIL = TPM_BASE + 15,
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TPM_INVALID_PCR_INFO = TPM_BASE + 16,
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TPM_NOSPACE = TPM_BASE + 17,
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TPM_NOSRK = TPM_BASE + 18,
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TPM_NOTSEALED_BLOB = TPM_BASE + 19,
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TPM_OWNER_SET = TPM_BASE + 20,
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TPM_RESOURCES = TPM_BASE + 21,
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TPM_SHORTRANDOM = TPM_BASE + 22,
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TPM_SIZE = TPM_BASE + 23,
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TPM_WRONGPCRVAL = TPM_BASE + 24,
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TPM_BAD_PARAM_SIZE = TPM_BASE + 25,
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TPM_SHA_THREAD = TPM_BASE + 26,
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TPM_SHA_ERROR = TPM_BASE + 27,
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TPM_FAILEDSELFTEST = TPM_BASE + 28,
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TPM_AUTH2FAIL = TPM_BASE + 29,
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TPM_BADTAG = TPM_BASE + 30,
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TPM_IOERROR = TPM_BASE + 31,
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TPM_ENCRYPT_ERROR = TPM_BASE + 32,
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TPM_DECRYPT_ERROR = TPM_BASE + 33,
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TPM_INVALID_AUTHHANDLE = TPM_BASE + 34,
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TPM_NO_ENDORSEMENT = TPM_BASE + 35,
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TPM_INVALID_KEYUSAGE = TPM_BASE + 36,
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TPM_WRONG_ENTITYTYPE = TPM_BASE + 37,
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TPM_INVALID_POSTINIT = TPM_BASE + 38,
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TPM_INAPPROPRIATE_SIG = TPM_BASE + 39,
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TPM_BAD_KEY_PROPERTY = TPM_BASE + 40,
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TPM_BAD_MIGRATION = TPM_BASE + 41,
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TPM_BAD_SCHEME = TPM_BASE + 42,
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TPM_BAD_DATASIZE = TPM_BASE + 43,
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TPM_BAD_MODE = TPM_BASE + 44,
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TPM_BAD_PRESENCE = TPM_BASE + 45,
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TPM_BAD_VERSION = TPM_BASE + 46,
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TPM_NO_WRAP_TRANSPORT = TPM_BASE + 47,
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TPM_AUDITFAIL_UNSUCCESSFUL = TPM_BASE + 48,
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TPM_AUDITFAIL_SUCCESSFUL = TPM_BASE + 49,
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TPM_NOTRESETABLE = TPM_BASE + 50,
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TPM_NOTLOCAL = TPM_BASE + 51,
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TPM_BAD_TYPE = TPM_BASE + 52,
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TPM_INVALID_RESOURCE = TPM_BASE + 53,
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TPM_NOTFIPS = TPM_BASE + 54,
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TPM_INVALID_FAMILY = TPM_BASE + 55,
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TPM_NO_NV_PERMISSION = TPM_BASE + 56,
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TPM_REQUIRES_SIGN = TPM_BASE + 57,
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TPM_KEY_NOTSUPPORTED = TPM_BASE + 58,
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TPM_AUTH_CONFLICT = TPM_BASE + 59,
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TPM_AREA_LOCKED = TPM_BASE + 60,
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TPM_BAD_LOCALITY = TPM_BASE + 61,
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TPM_READ_ONLY = TPM_BASE + 62,
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TPM_PER_NOWRITE = TPM_BASE + 63,
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TPM_FAMILY_COUNT = TPM_BASE + 64,
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TPM_WRITE_LOCKED = TPM_BASE + 65,
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TPM_BAD_ATTRIBUTES = TPM_BASE + 66,
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TPM_INVALID_STRUCTURE = TPM_BASE + 67,
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TPM_KEY_OWNER_CONTROL = TPM_BASE + 68,
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TPM_BAD_COUNTER = TPM_BASE + 69,
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TPM_NOT_FULLWRITE = TPM_BASE + 70,
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TPM_CONTEXT_GAP = TPM_BASE + 71,
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TPM_MAXNVWRITES = TPM_BASE + 72,
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TPM_NOOPERATOR = TPM_BASE + 73,
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TPM_RESOURCEMISSING = TPM_BASE + 74,
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TPM_DELEGATE_LOCK = TPM_BASE + 75,
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TPM_DELEGATE_FAMILY = TPM_BASE + 76,
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TPM_DELEGATE_ADMIN = TPM_BASE + 77,
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TPM_TRANSPORT_NOTEXCLUSIVE = TPM_BASE + 78,
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TPM_OWNER_CONTROL = TPM_BASE + 79,
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TPM_DAA_RESOURCES = TPM_BASE + 80,
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TPM_DAA_INPUT_DATA0 = TPM_BASE + 81,
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TPM_DAA_INPUT_DATA1 = TPM_BASE + 82,
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TPM_DAA_ISSUER_SETTINGS = TPM_BASE + 83,
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TPM_DAA_TPM_SETTINGS = TPM_BASE + 84,
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TPM_DAA_STAGE = TPM_BASE + 85,
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TPM_DAA_ISSUER_VALIDITY = TPM_BASE + 86,
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TPM_DAA_WRONG_W = TPM_BASE + 87,
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TPM_BAD_HANDLE = TPM_BASE + 88,
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TPM_BAD_DELEGATE = TPM_BASE + 89,
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TPM_BADCONTEXT = TPM_BASE + 90,
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TPM_TOOMANYCONTEXTS = TPM_BASE + 91,
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TPM_MA_TICKET_SIGNATURE = TPM_BASE + 92,
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TPM_MA_DESTINATION = TPM_BASE + 93,
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TPM_MA_SOURCE = TPM_BASE + 94,
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TPM_MA_AUTHORITY = TPM_BASE + 95,
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TPM_PERMANENTEK = TPM_BASE + 97,
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TPM_BAD_SIGNATURE = TPM_BASE + 98,
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TPM_NOCONTEXTSPACE = TPM_BASE + 99,
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/* TPM-defined non-fatal errors */
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TPM_RETRY = TPM_BASE + TPM_NON_FATAL,
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TPM_NEEDS_SELFTEST = TPM_BASE + TPM_NON_FATAL + 1,
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TPM_DOING_SELFTEST = TPM_BASE + TPM_NON_FATAL + 2,
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TPM_DEFEND_LOCK_RUNNING = TPM_BASE + TPM_NON_FATAL + 3,
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};
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/**
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* Initialize TPM device. It must be called before any TPM commands.
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*
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* @return 0 on success, non-0 on error.
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*/
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uint32_t tpm_init(void);
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/**
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* Issue a TPM_Startup command.
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*
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* @param mode TPM startup mode
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* @return return code of the operation
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*/
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uint32_t tpm_startup(enum tpm_startup_type mode);
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/**
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* Issue a TPM_SelfTestFull command.
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*
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* @return return code of the operation
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*/
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uint32_t tpm_self_test_full(void);
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/**
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* Issue a TPM_ContinueSelfTest command.
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*
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* @return return code of the operation
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*/
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uint32_t tpm_continue_self_test(void);
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/**
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* Issue a TPM_NV_DefineSpace command. The implementation is limited
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* to specify TPM_NV_ATTRIBUTES and size of the area. The area index
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* could be one of the special value listed in enum tpm_nv_index.
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*
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* @param index index of the area
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* @param perm TPM_NV_ATTRIBUTES of the area
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* @param size size of the area
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* @return return code of the operation
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*/
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uint32_t tpm_nv_define_space(uint32_t index, uint32_t perm, uint32_t size);
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/**
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* Issue a TPM_NV_ReadValue command. This implementation is limited
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* to read the area from offset 0. The area index could be one of
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* the special value listed in enum tpm_nv_index.
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*
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* @param index index of the area
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* @param data output buffer of the area contents
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* @param count size of output buffer
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* @return return code of the operation
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*/
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uint32_t tpm_nv_read_value(uint32_t index, void *data, uint32_t count);
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/**
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* Issue a TPM_NV_WriteValue command. This implementation is limited
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* to write the area from offset 0. The area index could be one of
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* the special value listed in enum tpm_nv_index.
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*
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* @param index index of the area
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* @param data input buffer to be wrote to the area
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* @param length length of data bytes of input buffer
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* @return return code of the operation
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*/
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uint32_t tpm_nv_write_value(uint32_t index, const void *data, uint32_t length);
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/**
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* Issue a TPM_Extend command.
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*
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* @param index index of the PCR
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* @param in_digest 160-bit value representing the event to be
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* recorded
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* @param out_digest 160-bit PCR value after execution of the
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* command
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* @return return code of the operation
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*/
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uint32_t tpm_extend(uint32_t index, const void *in_digest, void *out_digest);
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/**
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* Issue a TPM_PCRRead command.
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*
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* @param index index of the PCR
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* @param data output buffer for contents of the named PCR
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* @param count size of output buffer
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* @return return code of the operation
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*/
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uint32_t tpm_pcr_read(uint32_t index, void *data, size_t count);
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/**
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* Issue a TSC_PhysicalPresence command. TPM physical presence flag
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* is bit-wise OR'ed of flags listed in enum tpm_physical_presence.
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*
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* @param presence TPM physical presence flag
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* @return return code of the operation
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*/
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uint32_t tpm_tsc_physical_presence(uint16_t presence);
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/**
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* Issue a TPM_ReadPubek command.
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*
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* @param data output buffer for the public endorsement key
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* @param count size of ouput buffer
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* @return return code of the operation
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*/
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uint32_t tpm_read_pubek(void *data, size_t count);
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/**
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* Issue a TPM_ForceClear command.
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*
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* @return return code of the operation
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*/
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uint32_t tpm_force_clear(void);
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/**
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* Issue a TPM_PhysicalEnable command.
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*
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* @return return code of the operation
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*/
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uint32_t tpm_physical_enable(void);
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/**
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* Issue a TPM_PhysicalDisable command.
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*
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* @return return code of the operation
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*/
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uint32_t tpm_physical_disable(void);
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/**
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* Issue a TPM_PhysicalSetDeactivated command.
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*
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* @param state boolean state of the deactivated flag
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* @return return code of the operation
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*/
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uint32_t tpm_physical_set_deactivated(uint8_t state);
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/**
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* Issue a TPM_GetCapability command. This implementation is limited
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* to query sub_cap index that is 4-byte wide.
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*
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* @param cap_area partition of capabilities
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* @param sub_cap further definition of capability, which is
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* limited to be 4-byte wide
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* @param cap output buffer for capability information
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* @param count size of ouput buffer
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* @return return code of the operation
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*/
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uint32_t tpm_get_capability(uint32_t cap_area, uint32_t sub_cap,
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void *cap, size_t count);
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/**
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* Issue a TPM_FlushSpecific command for a AUTH ressource.
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*
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* @param auth_handle handle of the auth session
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* @return return code of the operation
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*/
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uint32_t tpm_terminate_auth_session(uint32_t auth_handle);
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/**
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* Issue a TPM_OIAP command to setup an object independant authorization
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* session.
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* Information about the session is stored internally.
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* If there was already an OIAP session active it is terminated and a new
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* session is set up.
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*
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* @param auth_handle pointer to the (new) auth handle or NULL.
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* @return return code of the operation
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*/
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uint32_t tpm_oiap(uint32_t *auth_handle);
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/**
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* Ends an active OIAP session.
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*
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* @return return code of the operation
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*/
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uint32_t tpm_end_oiap(void);
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/**
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* Issue a TPM_LoadKey2 (Auth1) command using an OIAP session for authenticating
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* the usage of the parent key.
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*
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* @param parent_handle handle of the parent key.
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* @param key pointer to the key structure (TPM_KEY or TPM_KEY12).
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* @param key_length size of the key structure
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* @param parent_key_usage_auth usage auth for the parent key
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* @param key_handle pointer to the key handle
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* @return return code of the operation
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*/
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uint32_t tpm_load_key2_oiap(uint32_t parent_handle,
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const void *key, size_t key_length,
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const void *parent_key_usage_auth,
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uint32_t *key_handle);
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/**
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* Issue a TPM_GetPubKey (Auth1) command using an OIAP session for
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* authenticating the usage of the key.
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*
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* @param key_handle handle of the key
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* @param usage_auth usage auth for the key
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* @param pubkey pointer to the pub key buffer; may be NULL if the pubkey
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* should not be stored.
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* @param pubkey_len pointer to the pub key buffer len. On entry: the size of
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* the provided pubkey buffer. On successful exit: the size
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* of the stored TPM_PUBKEY structure (iff pubkey != NULL).
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* @return return code of the operation
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*/
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uint32_t tpm_get_pub_key_oiap(uint32_t key_handle, const void *usage_auth,
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void *pubkey, size_t *pubkey_len);
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#endif /* __TPM_H */
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