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Message-ID: <20201102120927.GA5242@linux.intel.com>
Date: Mon, 2 Nov 2020 14:09:27 +0200
From: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To: "Daniel P. Smith" <dpsmith@...rtussolutions.com>
Cc: linux-kernel@...r.kernel.org, x86@...nel.org,
linux-integrity@...r.kernel.org, ross.philipson@...cle.com,
tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
luto@...capital.net, trenchboot-devel@...glegroups.com
Subject: Re: [RFC PATCH 2/4] tpm: Move core definitions and buffer management
out of main TPM header
On Sat, Oct 31, 2020 at 12:51:20PM -0400, Daniel P. Smith wrote:
> Move core definitions from include/linux/tpm.h to new file
> include/linux/tpm_core.h. Move buffer management code from
> include/linux/tpm.h to new file include/linux/tpm_buffer.h.
>
> This allows tpm_tis_defs.h to be included in the Secure Launch early PCR
> extend module. The rest of tpm.h cannot be included in the compressed
> kernel environment.
>
> Signed-off-by: Daniel P. Smith <dpsmith@...rtussolutions.com>
> Signed-off-by: Ross Philipson <ross.philipson@...cle.com>
Should be split into two patches. I would order them so that definitions
are moved in the first patch and tpm_buf in the second. Then it is
easier to review the changes as other tpm_buf changes follow in the
subsequent patch.
> ---
> include/linux/tpm.h | 269 +--------------------------------------------
> include/linux/tpm_buffer.h | 123 +++++++++++++++++++++
The filename should be tpm_buf.h (aligns with the struct name).
> include/linux/tpm_core.h | 185 +++++++++++++++++++++++++++++++
Dump these into tpm_command.h, which already has constants for TPM 1.2
trusted keys, instead of adding a new file.
> 3 files changed, 310 insertions(+), 267 deletions(-)
> create mode 100644 include/linux/tpm_buffer.h
> create mode 100644 include/linux/tpm_core.h
>
> diff --git a/include/linux/tpm.h b/include/linux/tpm.h
> index 8f4ff39f51e7..a8e3a19caa98 100644
> --- a/include/linux/tpm.h
> +++ b/include/linux/tpm.h
> @@ -23,40 +23,13 @@
> #include <linux/fs.h>
> #include <linux/highmem.h>
> #include <crypto/hash_info.h>
> -
> -#define TPM_DIGEST_SIZE 20 /* Max TPM v1.2 PCR size */
> -#define TPM_MAX_DIGEST_SIZE SHA512_DIGEST_SIZE
> +#include <linux/tpm_buffer.h>
> +#include <linux/tpm_core.h>
>
> struct tpm_chip;
> struct trusted_key_payload;
> struct trusted_key_options;
>
> -enum tpm_algorithms {
> - TPM_ALG_ERROR = 0x0000,
> - TPM_ALG_SHA1 = 0x0004,
> - TPM_ALG_KEYEDHASH = 0x0008,
> - TPM_ALG_SHA256 = 0x000B,
> - TPM_ALG_SHA384 = 0x000C,
> - TPM_ALG_SHA512 = 0x000D,
> - TPM_ALG_NULL = 0x0010,
> - TPM_ALG_SM3_256 = 0x0012,
> -};
> -
> -struct tpm_digest {
> - u16 alg_id;
> - u8 digest[TPM_MAX_DIGEST_SIZE];
> -} __packed;
> -
> -struct tpm_bank_info {
> - u16 alg_id;
> - u16 digest_size;
> - u16 crypto_id;
> -};
> -
> -enum TPM_OPS_FLAGS {
> - TPM_OPS_AUTO_STARTUP = BIT(0),
> -};
> -
> struct tpm_class_ops {
> unsigned int flags;
> const u8 req_complete_mask;
> @@ -79,26 +52,6 @@ struct tpm_class_ops {
>
> #define TPM_NUM_EVENT_LOG_FILES 3
>
> -/* Indexes the duration array */
> -enum tpm_duration {
> - TPM_SHORT = 0,
> - TPM_MEDIUM = 1,
> - TPM_LONG = 2,
> - TPM_LONG_LONG = 3,
> - TPM_UNDEFINED,
> - TPM_NUM_DURATIONS = TPM_UNDEFINED,
> -};
> -
> -#define TPM_PPI_VERSION_LEN 3
> -
> -struct tpm_space {
> - u32 context_tbl[3];
> - u8 *context_buf;
> - u32 session_tbl[3];
> - u8 *session_buf;
> - u32 buf_size;
> -};
> -
> struct tpm_bios_log {
> void *bios_event_log;
> void *bios_event_log_end;
> @@ -165,104 +118,6 @@ struct tpm_chip {
> int locality;
> };
>
> -#define TPM_HEADER_SIZE 10
> -
> -enum tpm2_const {
> - TPM2_PLATFORM_PCR = 24,
> - TPM2_PCR_SELECT_MIN = ((TPM2_PLATFORM_PCR + 7) / 8),
> -};
> -
> -enum tpm2_timeouts {
> - TPM2_TIMEOUT_A = 750,
> - TPM2_TIMEOUT_B = 2000,
> - TPM2_TIMEOUT_C = 200,
> - TPM2_TIMEOUT_D = 30,
> - TPM2_DURATION_SHORT = 20,
> - TPM2_DURATION_MEDIUM = 750,
> - TPM2_DURATION_LONG = 2000,
> - TPM2_DURATION_LONG_LONG = 300000,
> - TPM2_DURATION_DEFAULT = 120000,
> -};
> -
> -enum tpm2_structures {
> - TPM2_ST_NO_SESSIONS = 0x8001,
> - TPM2_ST_SESSIONS = 0x8002,
> -};
> -
> -/* Indicates from what layer of the software stack the error comes from */
> -#define TSS2_RC_LAYER_SHIFT 16
> -#define TSS2_RESMGR_TPM_RC_LAYER (11 << TSS2_RC_LAYER_SHIFT)
> -
> -enum tpm2_return_codes {
> - TPM2_RC_SUCCESS = 0x0000,
> - TPM2_RC_HASH = 0x0083, /* RC_FMT1 */
> - TPM2_RC_HANDLE = 0x008B,
> - TPM2_RC_INITIALIZE = 0x0100, /* RC_VER1 */
> - TPM2_RC_FAILURE = 0x0101,
> - TPM2_RC_DISABLED = 0x0120,
> - TPM2_RC_COMMAND_CODE = 0x0143,
> - TPM2_RC_TESTING = 0x090A, /* RC_WARN */
> - TPM2_RC_REFERENCE_H0 = 0x0910,
> - TPM2_RC_RETRY = 0x0922,
> -};
> -
> -enum tpm2_command_codes {
> - TPM2_CC_FIRST = 0x011F,
> - TPM2_CC_HIERARCHY_CONTROL = 0x0121,
> - TPM2_CC_HIERARCHY_CHANGE_AUTH = 0x0129,
> - TPM2_CC_CREATE_PRIMARY = 0x0131,
> - TPM2_CC_SEQUENCE_COMPLETE = 0x013E,
> - TPM2_CC_SELF_TEST = 0x0143,
> - TPM2_CC_STARTUP = 0x0144,
> - TPM2_CC_SHUTDOWN = 0x0145,
> - TPM2_CC_NV_READ = 0x014E,
> - TPM2_CC_CREATE = 0x0153,
> - TPM2_CC_LOAD = 0x0157,
> - TPM2_CC_SEQUENCE_UPDATE = 0x015C,
> - TPM2_CC_UNSEAL = 0x015E,
> - TPM2_CC_CONTEXT_LOAD = 0x0161,
> - TPM2_CC_CONTEXT_SAVE = 0x0162,
> - TPM2_CC_FLUSH_CONTEXT = 0x0165,
> - TPM2_CC_VERIFY_SIGNATURE = 0x0177,
> - TPM2_CC_GET_CAPABILITY = 0x017A,
> - TPM2_CC_GET_RANDOM = 0x017B,
> - TPM2_CC_PCR_READ = 0x017E,
> - TPM2_CC_PCR_EXTEND = 0x0182,
> - TPM2_CC_EVENT_SEQUENCE_COMPLETE = 0x0185,
> - TPM2_CC_HASH_SEQUENCE_START = 0x0186,
> - TPM2_CC_CREATE_LOADED = 0x0191,
> - TPM2_CC_LAST = 0x0193, /* Spec 1.36 */
> -};
> -
> -enum tpm2_permanent_handles {
> - TPM2_RS_PW = 0x40000009,
> -};
> -
> -enum tpm2_capabilities {
> - TPM2_CAP_HANDLES = 1,
> - TPM2_CAP_COMMANDS = 2,
> - TPM2_CAP_PCRS = 5,
> - TPM2_CAP_TPM_PROPERTIES = 6,
> -};
> -
> -enum tpm2_properties {
> - TPM_PT_TOTAL_COMMANDS = 0x0129,
> -};
> -
> -enum tpm2_startup_types {
> - TPM2_SU_CLEAR = 0x0000,
> - TPM2_SU_STATE = 0x0001,
> -};
> -
> -enum tpm2_cc_attrs {
> - TPM2_CC_ATTR_CHANDLES = 25,
> - TPM2_CC_ATTR_RHANDLE = 28,
> -};
> -
> -#define TPM_VID_INTEL 0x8086
> -#define TPM_VID_WINBOND 0x1050
> -#define TPM_VID_STM 0x104A
> -
> enum tpm_chip_flags {
> TPM_CHIP_FLAG_TPM2 = BIT(1),
> TPM_CHIP_FLAG_IRQ = BIT(2),
> @@ -274,126 +129,6 @@ enum tpm_chip_flags {
>
> #define to_tpm_chip(d) container_of(d, struct tpm_chip, dev)
>
> -struct tpm_header {
> - __be16 tag;
> - __be32 length;
> - union {
> - __be32 ordinal;
> - __be32 return_code;
> - };
> -} __packed;
> -
> -/* A string buffer type for constructing TPM commands. This is based on the
> - * ideas of string buffer code in security/keys/trusted.h but is heap based
> - * in order to keep the stack usage minimal.
> - */
> -
> -enum tpm_buf_flags {
> - TPM_BUF_OVERFLOW = BIT(0),
> -};
> -
> -struct tpm_buf {
> - unsigned int flags;
> - u8 *data;
> -};
> -
> -enum tpm2_object_attributes {
> - TPM2_OA_USER_WITH_AUTH = BIT(6),
> -};
> -
> -enum tpm2_session_attributes {
> - TPM2_SA_CONTINUE_SESSION = BIT(0),
> -};
> -
> -struct tpm2_hash {
> - unsigned int crypto_id;
> - unsigned int tpm_id;
> -};
> -
> -static inline void tpm_buf_reset(struct tpm_buf *buf, u16 tag, u32 ordinal)
> -{
> - struct tpm_header *head = (struct tpm_header *)buf->data;
> -
> - head->tag = cpu_to_be16(tag);
> - head->length = cpu_to_be32(sizeof(*head));
> - head->ordinal = cpu_to_be32(ordinal);
> -}
> -
> -static inline int tpm_buf_init(struct tpm_buf *buf, u16 tag, u32 ordinal)
> -{
> - buf->data = (u8 *)__get_free_page(GFP_KERNEL);
> - if (!buf->data)
> - return -ENOMEM;
> -
> - buf->flags = 0;
> - tpm_buf_reset(buf, tag, ordinal);
> - return 0;
> -}
> -
> -static inline void tpm_buf_destroy(struct tpm_buf *buf)
> -{
> - free_page((unsigned long)buf->data);
> -}
> -
> -static inline u32 tpm_buf_length(struct tpm_buf *buf)
> -{
> - struct tpm_header *head = (struct tpm_header *)buf->data;
> -
> - return be32_to_cpu(head->length);
> -}
> -
> -static inline u16 tpm_buf_tag(struct tpm_buf *buf)
> -{
> - struct tpm_header *head = (struct tpm_header *)buf->data;
> -
> - return be16_to_cpu(head->tag);
> -}
> -
> -static inline void tpm_buf_append(struct tpm_buf *buf,
> - const unsigned char *new_data,
> - unsigned int new_len)
> -{
> - struct tpm_header *head = (struct tpm_header *)buf->data;
> - u32 len = tpm_buf_length(buf);
> -
> - /* Return silently if overflow has already happened. */
> - if (buf->flags & TPM_BUF_OVERFLOW)
> - return;
> -
> - if ((len + new_len) > PAGE_SIZE) {
> - WARN(1, "tpm_buf: overflow\n");
> - buf->flags |= TPM_BUF_OVERFLOW;
> - return;
> - }
> -
> - memcpy(&buf->data[len], new_data, new_len);
> - head->length = cpu_to_be32(len + new_len);
> -}
> -
> -static inline void tpm_buf_append_u8(struct tpm_buf *buf, const u8 value)
> -{
> - tpm_buf_append(buf, &value, 1);
> -}
> -
> -static inline void tpm_buf_append_u16(struct tpm_buf *buf, const u16 value)
> -{
> - __be16 value2 = cpu_to_be16(value);
> -
> - tpm_buf_append(buf, (u8 *) &value2, 2);
> -}
> -
> -static inline void tpm_buf_append_u32(struct tpm_buf *buf, const u32 value)
> -{
> - __be32 value2 = cpu_to_be32(value);
> -
> - tpm_buf_append(buf, (u8 *) &value2, 4);
> -}
> -
> -static inline u32 tpm2_rc_value(u32 rc)
> -{
> - return (rc & BIT(7)) ? rc & 0xff : rc;
> -}
> -
> #if defined(CONFIG_TCG_TPM) || defined(CONFIG_TCG_TPM_MODULE)
>
> extern int tpm_is_tpm2(struct tpm_chip *chip);
> diff --git a/include/linux/tpm_buffer.h b/include/linux/tpm_buffer.h
> new file mode 100644
> index 000000000000..8144a52fbc0a
> --- /dev/null
> +++ b/include/linux/tpm_buffer.h
> @@ -0,0 +1,123 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Copyright (C) 2004,2007,2008 IBM Corporation
> + *
> + * Authors:
> + * Leendert van Doorn <leendert@...son.ibm.com>
> + * Dave Safford <safford@...son.ibm.com>
> + * Reiner Sailer <sailer@...son.ibm.com>
> + * Kylene Hall <kjhall@...ibm.com>
> + * Debora Velarde <dvelarde@...ibm.com>
> + *
> + * Maintained by: <tpmdd_devel@...ts.sourceforge.net>
> + *
> + * Device driver for TCG/TCPA TPM (trusted platform module).
> + * Specifications at www.trustedcomputinggroup.org
> + */
> +
> +#ifndef __LINUX_TPM_BUFFER_H__
> +#define __LINUX_TPM_BUFFER_H__
> +
> +struct tpm_header {
> + __be16 tag;
> + __be32 length;
> + union {
> + __be32 ordinal;
> + __be32 return_code;
> + };
> +} __packed;
> +
> +/* A string buffer type for constructing TPM commands. This is based on the
> + * ideas of string buffer code in security/keys/trusted.h but is heap based
> + * in order to keep the stack usage minimal.
> + */
> +
> +enum tpm_buf_flags {
> + TPM_BUF_OVERFLOW = BIT(0),
> +};
> +
> +struct tpm_buf {
> + unsigned int flags;
> + u8 *data;
> +};
> +
> +static inline void tpm_buf_reset(struct tpm_buf *buf, u16 tag, u32 ordinal)
> +{
> + struct tpm_header *head = (struct tpm_header *)buf->data;
> +
> + head->tag = cpu_to_be16(tag);
> + head->length = cpu_to_be32(sizeof(*head));
> + head->ordinal = cpu_to_be32(ordinal);
> +}
> +
> +static inline int tpm_buf_init(struct tpm_buf *buf, u16 tag, u32 ordinal)
> +{
> + buf->data = (u8 *)__get_free_page(GFP_KERNEL);
> + if (!buf->data)
> + return -ENOMEM;
> +
> + buf->flags = 0;
> + tpm_buf_reset(buf, tag, ordinal);
> + return 0;
> +}
> +
> +static inline void tpm_buf_destroy(struct tpm_buf *buf)
> +{
> + free_page((unsigned long)buf->data);
> +}
> +
> +static inline u32 tpm_buf_length(struct tpm_buf *buf)
> +{
> + struct tpm_header *head = (struct tpm_header *)buf->data;
> +
> + return be32_to_cpu(head->length);
> +}
> +
> +static inline u16 tpm_buf_tag(struct tpm_buf *buf)
> +{
> + struct tpm_header *head = (struct tpm_header *)buf->data;
> +
> + return be16_to_cpu(head->tag);
> +}
> +
> +static inline void tpm_buf_append(struct tpm_buf *buf,
> + const unsigned char *new_data,
> + unsigned int new_len)
> +{
> + struct tpm_header *head = (struct tpm_header *)buf->data;
> + u32 len = tpm_buf_length(buf);
> +
> + /* Return silently if overflow has already happened. */
> + if (buf->flags & TPM_BUF_OVERFLOW)
> + return;
> +
> + if ((len + new_len) > PAGE_SIZE) {
> + WARN(1, "tpm_buf: overflow\n");
> + buf->flags |= TPM_BUF_OVERFLOW;
> + return;
> + }
> +
> + memcpy(&buf->data[len], new_data, new_len);
> + head->length = cpu_to_be32(len + new_len);
> +}
> +
> +static inline void tpm_buf_append_u8(struct tpm_buf *buf, const u8 value)
> +{
> + tpm_buf_append(buf, &value, 1);
> +}
> +
> +static inline void tpm_buf_append_u16(struct tpm_buf *buf, const u16 value)
> +{
> + __be16 value2 = cpu_to_be16(value);
> +
> + tpm_buf_append(buf, (u8 *) &value2, 2);
> +}
> +
> +static inline void tpm_buf_append_u32(struct tpm_buf *buf, const u32 value)
> +{
> + __be32 value2 = cpu_to_be32(value);
> +
> + tpm_buf_append(buf, (u8 *) &value2, 4);
> +}
> +
> +#endif
> diff --git a/include/linux/tpm_core.h b/include/linux/tpm_core.h
> new file mode 100644
> index 000000000000..292f96ae2ce4
> --- /dev/null
> +++ b/include/linux/tpm_core.h
> @@ -0,0 +1,185 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Copyright (C) 2004,2007,2008 IBM Corporation
> + *
> + * Authors:
> + * Leendert van Doorn <leendert@...son.ibm.com>
> + * Dave Safford <safford@...son.ibm.com>
> + * Reiner Sailer <sailer@...son.ibm.com>
> + * Kylene Hall <kjhall@...ibm.com>
> + * Debora Velarde <dvelarde@...ibm.com>
> + *
> + * Maintained by: <tpmdd_devel@...ts.sourceforge.net>
> + *
> + * Device driver for TCG/TCPA TPM (trusted platform module).
> + * Specifications at www.trustedcomputinggroup.org
> + */
> +#ifndef __LINUX_TPM_CORE_H__
> +#define __LINUX_TPM_CORE_H__
> +
> +#define TPM_DIGEST_SIZE 20 /* Max TPM v1.2 PCR size */
> +#define TPM_MAX_DIGEST_SIZE SHA512_DIGEST_SIZE
> +
> +enum tpm_algorithms {
> + TPM_ALG_ERROR = 0x0000,
> + TPM_ALG_SHA1 = 0x0004,
> + TPM_ALG_KEYEDHASH = 0x0008,
> + TPM_ALG_SHA256 = 0x000B,
> + TPM_ALG_SHA384 = 0x000C,
> + TPM_ALG_SHA512 = 0x000D,
> + TPM_ALG_NULL = 0x0010,
> + TPM_ALG_SM3_256 = 0x0012,
> +};
> +
> +struct tpm_digest {
> + u16 alg_id;
> + u8 digest[TPM_MAX_DIGEST_SIZE];
> +} __packed;
> +
> +struct tpm_bank_info {
> + u16 alg_id;
> + u16 digest_size;
> + u16 crypto_id;
> +};
> +
> +enum TPM_OPS_FLAGS {
> + TPM_OPS_AUTO_STARTUP = BIT(0),
> +};
> +
> +/* Indexes the duration array */
> +enum tpm_duration {
> + TPM_SHORT = 0,
> + TPM_MEDIUM = 1,
> + TPM_LONG = 2,
> + TPM_LONG_LONG = 3,
> + TPM_UNDEFINED,
> + TPM_NUM_DURATIONS = TPM_UNDEFINED,
> +};
> +
> +#define TPM_PPI_VERSION_LEN 3
> +
> +struct tpm_space {
> + u32 context_tbl[3];
> + u8 *context_buf;
> + u32 session_tbl[3];
> + u8 *session_buf;
> + u32 buf_size;
> +};
> +
> +#define TPM_HEADER_SIZE 10
> +
> +enum tpm2_const {
> + TPM2_PLATFORM_PCR = 24,
> + TPM2_PCR_SELECT_MIN = ((TPM2_PLATFORM_PCR + 7) / 8),
> +};
> +
> +enum tpm2_timeouts {
> + TPM2_TIMEOUT_A = 750,
> + TPM2_TIMEOUT_B = 2000,
> + TPM2_TIMEOUT_C = 200,
> + TPM2_TIMEOUT_D = 30,
> + TPM2_DURATION_SHORT = 20,
> + TPM2_DURATION_MEDIUM = 750,
> + TPM2_DURATION_LONG = 2000,
> + TPM2_DURATION_LONG_LONG = 300000,
> + TPM2_DURATION_DEFAULT = 120000,
> +};
> +
> +enum tpm2_structures {
> + TPM2_ST_NO_SESSIONS = 0x8001,
> + TPM2_ST_SESSIONS = 0x8002,
> +};
> +
> +/* Indicates from what layer of the software stack the error comes from */
> +#define TSS2_RC_LAYER_SHIFT 16
> +#define TSS2_RESMGR_TPM_RC_LAYER (11 << TSS2_RC_LAYER_SHIFT)
> +
> +enum tpm2_return_codes {
> + TPM2_RC_SUCCESS = 0x0000,
> + TPM2_RC_HASH = 0x0083, /* RC_FMT1 */
> + TPM2_RC_HANDLE = 0x008B,
> + TPM2_RC_INITIALIZE = 0x0100, /* RC_VER1 */
> + TPM2_RC_FAILURE = 0x0101,
> + TPM2_RC_DISABLED = 0x0120,
> + TPM2_RC_COMMAND_CODE = 0x0143,
> + TPM2_RC_TESTING = 0x090A, /* RC_WARN */
> + TPM2_RC_REFERENCE_H0 = 0x0910,
> + TPM2_RC_RETRY = 0x0922,
> +};
> +
> +enum tpm2_command_codes {
> + TPM2_CC_FIRST = 0x011F,
> + TPM2_CC_HIERARCHY_CONTROL = 0x0121,
> + TPM2_CC_HIERARCHY_CHANGE_AUTH = 0x0129,
> + TPM2_CC_CREATE_PRIMARY = 0x0131,
> + TPM2_CC_SEQUENCE_COMPLETE = 0x013E,
> + TPM2_CC_SELF_TEST = 0x0143,
> + TPM2_CC_STARTUP = 0x0144,
> + TPM2_CC_SHUTDOWN = 0x0145,
> + TPM2_CC_NV_READ = 0x014E,
> + TPM2_CC_CREATE = 0x0153,
> + TPM2_CC_LOAD = 0x0157,
> + TPM2_CC_SEQUENCE_UPDATE = 0x015C,
> + TPM2_CC_UNSEAL = 0x015E,
> + TPM2_CC_CONTEXT_LOAD = 0x0161,
> + TPM2_CC_CONTEXT_SAVE = 0x0162,
> + TPM2_CC_FLUSH_CONTEXT = 0x0165,
> + TPM2_CC_VERIFY_SIGNATURE = 0x0177,
> + TPM2_CC_GET_CAPABILITY = 0x017A,
> + TPM2_CC_GET_RANDOM = 0x017B,
> + TPM2_CC_PCR_READ = 0x017E,
> + TPM2_CC_PCR_EXTEND = 0x0182,
> + TPM2_CC_EVENT_SEQUENCE_COMPLETE = 0x0185,
> + TPM2_CC_HASH_SEQUENCE_START = 0x0186,
> + TPM2_CC_CREATE_LOADED = 0x0191,
> + TPM2_CC_LAST = 0x0193, /* Spec 1.36 */
> +};
> +
> +enum tpm2_permanent_handles {
> + TPM2_RS_PW = 0x40000009,
> +};
> +
> +enum tpm2_capabilities {
> + TPM2_CAP_HANDLES = 1,
> + TPM2_CAP_COMMANDS = 2,
> + TPM2_CAP_PCRS = 5,
> + TPM2_CAP_TPM_PROPERTIES = 6,
> +};
> +
> +enum tpm2_properties {
> + TPM_PT_TOTAL_COMMANDS = 0x0129,
> +};
> +
> +enum tpm2_startup_types {
> + TPM2_SU_CLEAR = 0x0000,
> + TPM2_SU_STATE = 0x0001,
> +};
> +
> +enum tpm2_cc_attrs {
> + TPM2_CC_ATTR_CHANDLES = 25,
> + TPM2_CC_ATTR_RHANDLE = 28,
> +};
> +
> +#define TPM_VID_INTEL 0x8086
> +#define TPM_VID_WINBOND 0x1050
> +#define TPM_VID_STM 0x104A
> +
> +enum tpm2_object_attributes {
> + TPM2_OA_USER_WITH_AUTH = BIT(6),
> +};
> +
> +enum tpm2_session_attributes {
> + TPM2_SA_CONTINUE_SESSION = BIT(0),
> +};
> +
> +struct tpm2_hash {
> + unsigned int crypto_id;
> + unsigned int tpm_id;
> +};
> +
> +static inline u32 tpm2_rc_value(u32 rc)
> +{
> + return (rc & BIT(7)) ? rc & 0xff : rc;
> +}
> +
> +#endif
> --
> 2.11.0
>
/Jarkko
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