integrity: add measured_pcrs field to integrity cache
To keep track of which measurements have been extended to which PCRs, this
patch defines a new integrity_iint_cache field named measured_pcrs. This
field is a bitmask of the PCRs measured. Each bit corresponds to a PCR
index. For example, bit 10 corresponds to PCR 10.
Signed-off-by: Eric Richter <erichte@linux.vnet.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
diff --git a/security/integrity/iint.c b/security/integrity/iint.c
index 345b759..c710d22 100644
--- a/security/integrity/iint.c
+++ b/security/integrity/iint.c
@@ -79,6 +79,7 @@
iint->ima_bprm_status = INTEGRITY_UNKNOWN;
iint->ima_read_status = INTEGRITY_UNKNOWN;
iint->evm_status = INTEGRITY_UNKNOWN;
+ iint->measured_pcrs = 0;
kmem_cache_free(iint_cache, iint);
}
@@ -159,6 +160,7 @@
iint->ima_bprm_status = INTEGRITY_UNKNOWN;
iint->ima_read_status = INTEGRITY_UNKNOWN;
iint->evm_status = INTEGRITY_UNKNOWN;
+ iint->measured_pcrs = 0;
}
static int __init integrity_iintcache_init(void)