Merge pull request #2 from jbrindle/master

allow data length to be requested by user
ValdikSS · Sep 1, 2020 · f3aa507 · f3aa507
2 parents e058535 + 59e1895
commit f3aa507
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/binary_bios_measurements_parser.py b/binary_bios_measurements_parser.py
@@ -5,6 +5,8 @@
 import binascii
 import hashlib
 
+datalen = 0
+
 event_types = {
     0x00000000:"preboot_cert",
     0x00000001:"post_code",
@@ -63,7 +65,7 @@ def __str__(self):
             binascii.hexlify(self.pcr_value).decode(),
             self.event_size,
             self.valid,
-            self.event_data[:30])
+            self.event_data[:datalen])
 
 
 class TCPAParser(struct.Struct):
@@ -119,11 +121,19 @@ def __str__(self):
                         metavar=("ID", "SHA1HASH"),
                         dest="replacelist",
                         help="Replace event ID pcr_value with SHA1HASH. Could be used multiple times.")
+    parser.add_argument("-l",
+                        default=30,
+                        metavar="length",
+                        type=int,
+                        dest="datalen",
+                        help="Length of data to display. Defaults to 30. -1 means all.")
     args = parser.parse_args()
 
     tcpa_data = list()
     pcrs = list()
 
+    datalen = args.datalen
+
     for p in range(24):
         pcrs.append(PCR(p))