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-rw-r--r--src/avirt-config.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/avirt-config.c b/src/avirt-config.c
index d2b1d5e..53af9db 100644
--- a/src/avirt-config.c
+++ b/src/avirt-config.c
@@ -58,6 +58,7 @@
#endif
static bool configfs_mounted = false;
+static bool card_sealed = false;
static int mount_configfs()
{
@@ -132,6 +133,12 @@ int AVIRT_SealCard()
char path_sealed[AVIRT_CONFIGFS_PATH_MAXLEN];
FILE *fd;
+ if (card_sealed)
+ {
+ AVIRT_ERROR("Card is already sealed!");
+ return -1;
+ }
+
if (!configfs_mounted) {
err = mount_configfs();
if (err < 0)
@@ -149,4 +156,6 @@ int AVIRT_SealCard()
fprintf(fd, "%d", 1);
fclose(fd);
+
+ card_sealed = true;
}