Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index f3501d0..a7fea3e 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2004 IBM Corporation
* Copyright (C) 2015 Intel Corporation
@@ -12,12 +13,6 @@
*
* Device driver for TCG/TCPA TPM (trusted platform module).
* Specifications at www.trustedcomputinggroup.org
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
- *
*/
#ifndef __TPM_H__
@@ -25,30 +20,22 @@
#include <linux/module.h>
#include <linux/delay.h>
-#include <linux/fs.h>
-#include <linux/hw_random.h>
#include <linux/mutex.h>
#include <linux/sched.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/tpm.h>
-#include <linux/acpi.h>
-#include <linux/cdev.h>
#include <linux/highmem.h>
#include <linux/tpm_eventlog.h>
-#include <crypto/hash_info.h>
#ifdef CONFIG_X86
#include <asm/intel-family.h>
#endif
-enum tpm_const {
- TPM_MINOR = 224, /* officially assigned */
- TPM_BUFSIZE = 4096,
- TPM_NUM_DEVICES = 65536,
- TPM_RETRY = 50, /* 5 seconds */
- TPM_NUM_EVENT_LOG_FILES = 3,
-};
+#define TPM_MINOR 224 /* officially assigned */
+#define TPM_BUFSIZE 4096
+#define TPM_NUM_DEVICES 65536
+#define TPM_RETRY 50
enum tpm_timeout {
TPM_TIMEOUT = 5, /* msecs */
@@ -65,16 +52,6 @@
TPM_ADDR = 0x4E,
};
-/* 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_WARN_RETRY 0x800
#define TPM_WARN_DOING_SELFTEST 0x802
#define TPM_ERR_DEACTIVATED 0x6
@@ -122,34 +99,32 @@
TPM2_RC_RETRY = 0x0922,
};
-enum tpm2_algorithms {
- TPM2_ALG_ERROR = 0x0000,
- TPM2_ALG_SHA1 = 0x0004,
- TPM2_ALG_KEYEDHASH = 0x0008,
- TPM2_ALG_SHA256 = 0x000B,
- TPM2_ALG_SHA384 = 0x000C,
- TPM2_ALG_SHA512 = 0x000D,
- TPM2_ALG_NULL = 0x0010,
- TPM2_ALG_SM3_256 = 0x0012,
-};
-
enum tpm2_command_codes {
- TPM2_CC_FIRST = 0x011F,
- TPM2_CC_CREATE_PRIMARY = 0x0131,
- TPM2_CC_SELF_TEST = 0x0143,
- TPM2_CC_STARTUP = 0x0144,
- TPM2_CC_SHUTDOWN = 0x0145,
- TPM2_CC_CREATE = 0x0153,
- TPM2_CC_LOAD = 0x0157,
- TPM2_CC_UNSEAL = 0x015E,
- TPM2_CC_CONTEXT_LOAD = 0x0161,
- TPM2_CC_CONTEXT_SAVE = 0x0162,
- TPM2_CC_FLUSH_CONTEXT = 0x0165,
- TPM2_CC_GET_CAPABILITY = 0x017A,
- TPM2_CC_GET_RANDOM = 0x017B,
- TPM2_CC_PCR_READ = 0x017E,
- TPM2_CC_PCR_EXTEND = 0x0182,
- TPM2_CC_LAST = 0x018F,
+ 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 {
@@ -181,15 +156,6 @@
#define TPM_VID_WINBOND 0x1050
#define TPM_VID_STM 0x104A
-#define TPM_PPI_VERSION_LEN 3
-
-struct tpm_space {
- u32 context_tbl[3];
- u8 *context_buf;
- u32 session_tbl[3];
- u8 *session_buf;
-};
-
enum tpm_chip_flags {
TPM_CHIP_FLAG_TPM2 = BIT(1),
TPM_CHIP_FLAG_IRQ = BIT(2),
@@ -198,82 +164,15 @@
TPM_CHIP_FLAG_ALWAYS_POWERED = BIT(5),
};
-struct tpm_bios_log {
- void *bios_event_log;
- void *bios_event_log_end;
-};
-
-struct tpm_chip_seqops {
- struct tpm_chip *chip;
- const struct seq_operations *seqops;
-};
-
-struct tpm_chip {
- struct device dev;
- struct device devs;
- struct cdev cdev;
- struct cdev cdevs;
-
- /* A driver callback under ops cannot be run unless ops_sem is held
- * (sometimes implicitly, eg for the sysfs code). ops becomes null
- * when the driver is unregistered, see tpm_try_get_ops.
- */
- struct rw_semaphore ops_sem;
- const struct tpm_class_ops *ops;
-
- struct tpm_bios_log log;
- struct tpm_chip_seqops bin_log_seqops;
- struct tpm_chip_seqops ascii_log_seqops;
-
- unsigned int flags;
-
- int dev_num; /* /dev/tpm# */
- unsigned long is_open; /* only one allowed */
-
- char hwrng_name[64];
- struct hwrng hwrng;
-
- struct mutex tpm_mutex; /* tpm is processing */
-
- unsigned long timeout_a; /* jiffies */
- unsigned long timeout_b; /* jiffies */
- unsigned long timeout_c; /* jiffies */
- unsigned long timeout_d; /* jiffies */
- bool timeout_adjusted;
- unsigned long duration[TPM_NUM_DURATIONS]; /* jiffies */
- bool duration_adjusted;
-
- struct dentry *bios_dir[TPM_NUM_EVENT_LOG_FILES];
-
- const struct attribute_group *groups[3];
- unsigned int groups_cnt;
-
- u16 active_banks[7];
-#ifdef CONFIG_ACPI
- acpi_handle acpi_dev_handle;
- char ppi_version[TPM_PPI_VERSION_LEN + 1];
-#endif /* CONFIG_ACPI */
-
- struct tpm_space work_space;
- u32 nr_commands;
- u32 *cc_attrs_tbl;
-
- /* active locality */
- int locality;
-};
-
#define to_tpm_chip(d) container_of(d, struct tpm_chip, dev)
-struct tpm_input_header {
- __be16 tag;
- __be32 length;
- __be32 ordinal;
-} __packed;
-
-struct tpm_output_header {
- __be16 tag;
- __be32 length;
- __be32 return_code;
+struct tpm_header {
+ __be16 tag;
+ __be32 length;
+ union {
+ __be32 ordinal;
+ __be32 return_code;
+ };
} __packed;
#define TPM_TAG_RQU_COMMAND 193
@@ -368,18 +267,6 @@
TPM_CAP_PROP_TIS_DURATION = 0x120,
};
-typedef union {
- struct tpm_input_header in;
- struct tpm_output_header out;
-} tpm_cmd_header;
-
-struct tpm_pcrread_out {
- u8 pcr_result[TPM_DIGEST_SIZE];
-} __packed;
-
-struct tpm_pcrread_in {
- __be32 pcr_idx;
-} __packed;
/* 128 bytes is an arbitrary cap. This could be as large as TPM_BUFSIZE - 18
* bytes, but 128 is still a relatively large number of random bytes and
@@ -387,28 +274,6 @@
* compiler warnings about stack frame size. */
#define TPM_MAX_RNG_DATA 128
-struct tpm_getrandom_out {
- __be32 rng_data_len;
- u8 rng_data[TPM_MAX_RNG_DATA];
-} __packed;
-
-struct tpm_getrandom_in {
- __be32 num_bytes;
-} __packed;
-
-typedef union {
- struct tpm_pcrread_in pcrread_in;
- struct tpm_pcrread_out pcrread_out;
- struct tpm_getrandom_in getrandom_in;
- struct tpm_getrandom_out getrandom_out;
-} tpm_cmd_params;
-
-struct tpm_cmd_t {
- tpm_cmd_header header;
- tpm_cmd_params params;
-} __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.
@@ -426,8 +291,8 @@
static inline void tpm_buf_reset(struct tpm_buf *buf, u16 tag, u32 ordinal)
{
- struct tpm_input_header *head;
- head = (struct tpm_input_header *)buf->data;
+ 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);
@@ -453,14 +318,14 @@
static inline u32 tpm_buf_length(struct tpm_buf *buf)
{
- struct tpm_input_header *head = (struct tpm_input_header *) buf->data;
+ 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_input_header *head = (struct tpm_input_header *) buf->data;
+ struct tpm_header *head = (struct tpm_header *)buf->data;
return be16_to_cpu(head->tag);
}
@@ -469,7 +334,7 @@
const unsigned char *new_data,
unsigned int new_len)
{
- struct tpm_input_header *head = (struct tpm_input_header *) buf->data;
+ struct tpm_header *head = (struct tpm_header *)buf->data;
u32 len = tpm_buf_length(buf);
/* Return silently if overflow has already happened. */
@@ -512,31 +377,24 @@
extern const struct file_operations tpmrm_fops;
extern struct idr dev_nums_idr;
-/**
- * enum tpm_transmit_flags - flags for tpm_transmit()
- *
- * @TPM_TRANSMIT_UNLOCKED: do not lock the chip
- * @TPM_TRANSMIT_NESTED: discard setup steps (power management,
- * locality) including locking (i.e. implicit
- * UNLOCKED)
- */
-enum tpm_transmit_flags {
- TPM_TRANSMIT_UNLOCKED = BIT(0),
- TPM_TRANSMIT_NESTED = BIT(1),
-};
-
-ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space,
- u8 *buf, size_t bufsiz, unsigned int flags);
-ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_space *space,
- void *buf, size_t bufsiz,
- size_t min_rsp_body_length, unsigned int flags,
- const char *desc);
-int tpm_startup(struct tpm_chip *chip);
-ssize_t tpm_getcap(struct tpm_chip *chip, u32 subcap_id, cap_t *cap,
- const char *desc, size_t min_cap_length);
+ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz);
+ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_buf *buf,
+ size_t min_rsp_body_length, const char *desc);
int tpm_get_timeouts(struct tpm_chip *);
+int tpm_auto_startup(struct tpm_chip *chip);
+
+int tpm1_pm_suspend(struct tpm_chip *chip, u32 tpm_suspend_pcr);
int tpm1_auto_startup(struct tpm_chip *chip);
-int tpm_do_selftest(struct tpm_chip *chip);
+int tpm1_do_selftest(struct tpm_chip *chip);
+int tpm1_get_timeouts(struct tpm_chip *chip);
+unsigned long tpm1_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal);
+int tpm1_pcr_extend(struct tpm_chip *chip, u32 pcr_idx, const u8 *hash,
+ const char *log_msg);
+int tpm1_pcr_read(struct tpm_chip *chip, u32 pcr_idx, u8 *res_buf);
+ssize_t tpm1_getcap(struct tpm_chip *chip, u32 subcap_id, cap_t *cap,
+ const char *desc, size_t min_cap_length);
+int tpm1_get_random(struct tpm_chip *chip, u8 *out, size_t max);
+int tpm1_get_pcr_allocation(struct tpm_chip *chip);
unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal);
int tpm_pm_suspend(struct device *dev);
int tpm_pm_resume(struct device *dev);
@@ -547,6 +405,8 @@
delay_msec * 1000);
};
+int tpm_chip_start(struct tpm_chip *chip);
+void tpm_chip_stop(struct tpm_chip *chip);
struct tpm_chip *tpm_find_get_ops(struct tpm_chip *chip);
__must_check int tpm_try_get_ops(struct tpm_chip *chip);
void tpm_put_ops(struct tpm_chip *chip);
@@ -560,7 +420,6 @@
void tpm_sysfs_add_device(struct tpm_chip *chip);
-int tpm_pcr_read_dev(struct tpm_chip *chip, int pcr_idx, u8 *res_buf);
#ifdef CONFIG_ACPI
extern void tpm_add_ppi(struct tpm_chip *chip);
@@ -575,12 +434,13 @@
return (rc & BIT(7)) ? rc & 0xff : rc;
}
-int tpm2_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf);
-int tpm2_pcr_extend(struct tpm_chip *chip, int pcr_idx, u32 count,
- struct tpm2_digest *digests);
+int tpm2_get_timeouts(struct tpm_chip *chip);
+int tpm2_pcr_read(struct tpm_chip *chip, u32 pcr_idx,
+ struct tpm_digest *digest, u16 *digest_size_ptr);
+int tpm2_pcr_extend(struct tpm_chip *chip, u32 pcr_idx,
+ struct tpm_digest *digests);
int tpm2_get_random(struct tpm_chip *chip, u8 *dest, size_t max);
-void tpm2_flush_context_cmd(struct tpm_chip *chip, u32 handle,
- unsigned int flags);
+void tpm2_flush_context(struct tpm_chip *chip, u32 handle);
int tpm2_seal_trusted(struct tpm_chip *chip,
struct trusted_key_payload *payload,
struct trusted_key_options *options);
@@ -590,6 +450,7 @@
ssize_t tpm2_get_tpm_pt(struct tpm_chip *chip, u32 property_id,
u32 *value, const char *desc);
+ssize_t tpm2_get_pcr_allocation(struct tpm_chip *chip);
int tpm2_auto_startup(struct tpm_chip *chip);
void tpm2_shutdown(struct tpm_chip *chip, u16 shutdown_type);
unsigned long tpm2_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal);
@@ -597,11 +458,14 @@
int tpm2_find_cc(struct tpm_chip *chip, u32 cc);
int tpm2_init_space(struct tpm_space *space);
void tpm2_del_space(struct tpm_chip *chip, struct tpm_space *space);
-int tpm2_prepare_space(struct tpm_chip *chip, struct tpm_space *space, u32 cc,
- u8 *cmd);
-int tpm2_commit_space(struct tpm_chip *chip, struct tpm_space *space,
- u32 cc, u8 *buf, size_t *bufsiz);
+void tpm2_flush_space(struct tpm_chip *chip);
+int tpm2_prepare_space(struct tpm_chip *chip, struct tpm_space *space, u8 *cmd,
+ size_t cmdsiz);
+int tpm2_commit_space(struct tpm_chip *chip, struct tpm_space *space, void *buf,
+ size_t *bufsiz);
int tpm_bios_log_setup(struct tpm_chip *chip);
void tpm_bios_log_teardown(struct tpm_chip *chip);
+int tpm_dev_common_init(void);
+void tpm_dev_common_exit(void);
#endif