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-rw-r--r--src/cryptsetup/cryptsetup.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/cryptsetup/cryptsetup.c b/src/cryptsetup/cryptsetup.c
index b26fcca836..f570724b9d 100644
--- a/src/cryptsetup/cryptsetup.c
+++ b/src/cryptsetup/cryptsetup.c
@@ -37,6 +37,7 @@
static const char *opt_type = NULL; /* LUKS1 or PLAIN */
static char *opt_cipher = NULL;
static unsigned opt_key_size = 0;
+static unsigned opt_keyfile_offset = 0;
static char *opt_hash = NULL;
static unsigned opt_tries = 0;
static bool opt_readonly = false;
@@ -79,6 +80,13 @@ static int parse_one_option(const char *option) {
return 0;
}
+ } else if (startswith(option, "keyfile-offset=")) {
+
+ if (safe_atou(option+15, &opt_keyfile_offset) < 0) {
+ log_error("keyfile-offset= parse failure, ignoring.");
+ return 0;
+ }
+
} else if (startswith(option, "hash=")) {
char *t;
@@ -462,7 +470,8 @@ int main(int argc, char *argv[]) {
argv[3]);
if (key_file)
- k = crypt_activate_by_keyfile(cd, argv[2], CRYPT_ANY_SLOT, key_file, keyfile_size, flags);
+ k = crypt_activate_by_keyfile_offset(cd, argv[2], CRYPT_ANY_SLOT, key_file, keyfile_size,
+ opt_keyfile_offset, flags);
else {
char **p;