#include <console/console.h>
#include <security/tpm/tspi.h>
#include <region_file.h>
#include <string.h>
#include <symbols.h>
#include <cbmem.h>
#include <bootstate.h>
#include <vb2_sha.h>

Include dependency graph for log.c:

Functions
static struct tcpa_table *	tcpa_cbmem_init (void)

struct tcpa_table *	tcpa_log_init (void)
	Get the pointer to the single instance of global tcpa log data, and initialize it when necessary. More...

void	tcpa_log_dump (void *unused)
	Dump TCPA log entries on console. More...

void	tcpa_log_add_table_entry (const char name, const uint32_t pcr, enum vb2_hash_algorithm digest_algo, const uint8_t digest, const size_t digest_len)
	Add table entry for cbmem TCPA log. More...

void	tcpa_preram_log_clear (void)
	Clears the pre-RAM tcpa log data and initializes any content with default values. More...

static void	recover_tcpa_log (int is_recovery)

	ROMSTAGE_CBMEM_INIT_HOOK (recover_tcpa_log)

	BOOT_STATE_INIT_ENTRY (BS_PAYLOAD_BOOT, BS_ON_ENTRY, tcpa_log_dump, NULL)

Function Documentation

◆ BOOT_STATE_INIT_ENTRY()

BOOT_STATE_INIT_ENTRY	(	BS_PAYLOAD_BOOT	,
		BS_ON_ENTRY	,
		tcpa_log_dump	,
		NULL
	)

◆ recover_tcpa_log()

static void recover_tcpa_log ( int is_recovery )

static

Definition at line 125 of file log.c.

References BIOS_WARNING, tcpa_entry::digest, tcpa_entry::digest_length, tcpa_entry::digest_type, tcpa_table::entries, MAX_PRERAM_TCPA_LOG_ENTRIES, memcpy(), MIN, tcpa_entry::name, NULL, tcpa_table::num_entries, tcpa_entry::pcr, printk, strncpy(), tcpa_cbmem_init(), TCPA_DIGEST_MAX_LENGTH, TCPA_PCR_HASH_LEN, and TCPA_PCR_HASH_NAME.

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◆ ROMSTAGE_CBMEM_INIT_HOOK()

ROMSTAGE_CBMEM_INIT_HOOK ( recover_tcpa_log )

◆ tcpa_cbmem_init()

static struct tcpa_table* tcpa_cbmem_init ( void )

static

Definition at line 12 of file log.c.

References cbmem_add(), cbmem_find(), CBMEM_ID_TCPA_LOG, cbmem_possibly_online(), tcpa_table::max_entries, MAX_TCPA_LOG_ENTRIES, and tcpa_table::num_entries.

Referenced by recover_tcpa_log(), and tcpa_log_init().

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◆ tcpa_log_add_table_entry()

void tcpa_log_add_table_entry	(	const char *	name,
		const uint32_t	pcr,
		enum vb2_hash_algorithm	digest_algo,
		const uint8_t *	digest,
		const size_t	digest_len
	)

Add table entry for cbmem TCPA log.

Parameters

name	Name of the hashed data
pcr	PCR used to extend hashed data
diget_algo	sets the digest algorithm
digest	sets the hash extended into the tpm
digest_len	the length of the digest