C++ (Cpp) tpm_pcr_read Examples

Example #1

File: ima_init.c Project: AshishNamdev/linux

int __init ima_init(void)
{
	u8 pcr_i[TPM_DIGEST_SIZE];
	int rc;

	ima_used_chip = 0;
	rc = tpm_pcr_read(TPM_ANY_NUM, 0, pcr_i);
	if (rc == 0)
		ima_used_chip = 1;

	if (!ima_used_chip)
		pr_info("No TPM chip found, activating TPM-bypass! (rc=%d)\n",
			rc);

	rc = integrity_init_keyring(INTEGRITY_KEYRING_IMA);
	if (rc)
		return rc;

	rc = ima_init_crypto();
	if (rc)
		return rc;
	rc = ima_init_template();
	if (rc != 0)
		return rc;

	ima_load_kexec_buffer();

	rc = ima_add_boot_aggregate();	/* boot aggregate must be first entry */
	if (rc != 0)
		return rc;

	ima_init_policy();

	return ima_fs_init();
}

Example #2

File: ima_init.c Project: gimmeangel/linux

int __init ima_init(void)
{
	u8 pcr_i[TPM_DIGEST_SIZE];
	int rc;

	ima_used_chip = 0;
	rc = tpm_pcr_read(TPM_ANY_NUM, 0, pcr_i);
	if (rc == 0)
		ima_used_chip = 1;

	if (!ima_used_chip)
		pr_info("IMA: No TPM chip found, activating TPM-bypass!\n");

	rc = ima_init_crypto();
	if (rc)
		return rc;
	rc = ima_init_template();
	if (rc != 0)
		return rc;

	ima_add_boot_aggregate();	/* boot aggregate must be first entry */
	ima_init_policy();

	return ima_fs_init();
}

Example #3

File: ima_crypto.c Project: AshishNamdev/linux

static void __init ima_pcrread(int idx, u8 *pcr)
{
	if (!ima_used_chip)
		return;

	if (tpm_pcr_read(TPM_ANY_NUM, idx, pcr) != 0)
		pr_err("Error Communicating to TPM chip\n");
}

Example #4

File: cmd_tpm.c Project: 0s4l/u-boot-xlnx

static int do_tpm_pcr_read(cmd_tbl_t *cmdtp, int flag,
		int argc, char * const argv[])
{
	uint32_t index, count, rc;
	void *data;

	if (argc != 4)
		return CMD_RET_USAGE;
	index = simple_strtoul(argv[1], NULL, 0);
	data = (void *)simple_strtoul(argv[2], NULL, 0);
	count = simple_strtoul(argv[3], NULL, 0);

	rc = tpm_pcr_read(index, data, count);
	if (!rc) {
		puts("Named PCR content:\n");
		print_byte_string(data, count);
	}

	return convert_return_code(rc);
}