From 5f6e80de01c33ff1ad78f117b85ec2125310f924 Mon Sep 17 00:00:00 2001
From: Benjamin Berg <bberg@redhat.com>
Date: Fri, 30 Jul 2021 18:34:38 +0200
Subject: [PATCH] file_storage: Ensure username/finger match our expectations

Otherwise we would need to track this separately, which would be a bit
of a pain.

The alternative would be simply overriding the values.
---
 src/file_storage.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/file_storage.c b/src/file_storage.c
index db9a971..e12fe58 100644
--- a/src/file_storage.c
+++ b/src/file_storage.c
@@ -220,6 +220,14 @@ file_storage_print_data_load (FpDevice   *dev,
   if (r)
     return r;
 
+  /* Make sure the username/finger matches our expectations. */
+  if (fp_print_get_finger (new) != finger)
+    return -EINVAL;
+
+  if (g_strcmp0 (fp_print_get_username (new), username) != 0)
+    return -EINVAL;
+
+  /* And that the print is compatible with the device. */
   if (!fp_print_compatible (new, dev))
     return -EINVAL;