extern int ima_used_chip;
extern int ima_hash_algo;
extern int ima_appraise;
+extern struct tpm_chip *ima_tpm_chip;
/* IMA event related data */
struct ima_event_data {
if (!ima_used_chip)
return;
- if (tpm_pcr_read(NULL, idx, pcr) != 0)
+ if (tpm_pcr_read(ima_tpm_chip, idx, pcr) != 0)
pr_err("Error Communicating to TPM chip\n");
}
/* name for boot aggregate entry */
static const char *boot_aggregate_name = "boot_aggregate";
int ima_used_chip;
+struct tpm_chip *ima_tpm_chip;
/* Add the boot aggregate to the IMA measurement list and extend
* the PCR register.
int __init ima_init(void)
{
- u8 pcr_i[TPM_DIGEST_SIZE];
int rc;
- ima_used_chip = 0;
- rc = tpm_pcr_read(NULL, 0, pcr_i);
- if (rc == 0)
- ima_used_chip = 1;
+ ima_tpm_chip = tpm_default_chip();
+ ima_used_chip = ima_tpm_chip != NULL;
if (!ima_used_chip)
- pr_info("No TPM chip found, activating TPM-bypass! (rc=%d)\n",
- rc);
+ pr_info("No TPM chip found, activating TPM-bypass!\n");
rc = integrity_init_keyring(INTEGRITY_KEYRING_IMA);
if (rc)
if (!ima_used_chip)
return result;
- result = tpm_pcr_extend(NULL, pcr, hash);
+ result = tpm_pcr_extend(ima_tpm_chip, pcr, hash);
if (result != 0)
pr_err("Error Communicating to TPM chip, result: %d\n", result);
return result;