Extend PCR

Author: raoulstrackx

fortanix-vme/nsm/src/lib.rs

@@ -132,6 +132,14 @@ impl Nsm {
         };
         nsm_driver::nsm_process_request(self.0, req).try_into()
     }
+
+    pub fn extend_pcr(&mut self, idx_pcr: u16, data: Vec<u8>) -> Result<Pcr, Error> {
+        let req = Request::ExtendPCR {
+            index: idx_pcr,
+            data,
+        };
+        nsm_driver::nsm_process_request(self.0, req).try_into()
+    }
 }
 
 impl Drop for Nsm {

fortanix-vme/tests/nsm-test/src/main.rs

@@ -27,4 +27,11 @@ fn main() {
         println!("# pcr{} = {:?}", idx, pcr);
         assert_eq!(pcr.locked, idx <= 15);
     }
+
+    let pcr16 = nsm.extend_pcr(16, vec![41, 41, 41]);
+    println!("pcr16 = {:?}", pcr16);
+    let pcr16 = nsm.extend_pcr(16, vec![42, 42, 42]);
+    println!("pcr16 = {:?}", pcr16);
+    println!("pcr16 = {:?}", nsm.describe_pcr(16));
+    assert_eq!(nsm.describe_pcr(16).unwrap().locked, false);
 }