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-rw-r--r--bin/ykfde.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/bin/ykfde.c b/bin/ykfde.c
index b581f19..05a96b3 100644
--- a/bin/ykfde.c
+++ b/bin/ykfde.c
@@ -59,7 +59,7 @@ const static struct option options_long[] = {
{ 0, 0, 0, 0 }
};
-char * ask_factor(const char * text) {
+char * ask_secret(const char * text) {
struct termios tp, tp_save;
char * factor = NULL;
size_t len;
@@ -117,6 +117,7 @@ int main(int argc, char **argv) {
struct crypt_device *cryptdevice;
crypt_status_info cryptstatus;
crypt_keyslot_info cryptkeyslot;
+ char * passphrase = NULL;
/* keyutils */
key_serial_t key;
void * payload = NULL;
@@ -144,10 +145,10 @@ int main(int argc, char **argv) {
}
if (optarg == NULL) { /* N */
- if ((new_2nd_factor = ask_factor("new second factor")) == NULL)
+ if ((new_2nd_factor = ask_secret("new second factor")) == NULL)
goto out10;
- if ((new_2nd_factor_verify = ask_factor("new second factor for verification")) == NULL)
+ if ((new_2nd_factor_verify = ask_secret("new second factor for verification")) == NULL)
goto out10;
if (strcmp(new_2nd_factor, new_2nd_factor_verify) != 0) {
@@ -168,7 +169,7 @@ int main(int argc, char **argv) {
}
if (optarg == NULL) { /* S */
- second_factor = ask_factor("current second factor");
+ second_factor = ask_secret("current second factor");
} else { /* s */
second_factor = strdup(optarg);
memset(optarg, '*', strlen(optarg));
@@ -374,7 +375,11 @@ int main(int argc, char **argv) {
goto out60;
}
} else { /* ck == CRYPT_SLOT_INACTIVE */
- if (crypt_keyslot_add_by_passphrase(cryptdevice, luks_slot, NULL, 0,
+ if ((passphrase = ask_secret("existing LUKS passphrase")) == NULL)
+ goto out60;
+
+ if (crypt_keyslot_add_by_passphrase(cryptdevice, luks_slot,
+ passphrase, strlen(passphrase),
passphrase_new, PASSPHRASELEN) < 0) {
fprintf(stderr, "Could not add passphrase for key slot %d.\n", luks_slot);
goto out60;
@@ -425,6 +430,7 @@ out10:
memset(passphrase_old, 0, PASSPHRASELEN + 1);
memset(passphrase_new, 0, PASSPHRASELEN + 1);
+ free(passphrase);
free(new_2nd_factor_verify);
free(new_2nd_factor);
free(second_factor);