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-rw-r--r--bin/ykfde.c29
1 files changed, 20 insertions, 9 deletions
diff --git a/bin/ykfde.c b/bin/ykfde.c
index e72fd0d..7004365 100644
--- a/bin/ykfde.c
+++ b/bin/ykfde.c
@@ -18,6 +18,8 @@
#include <termios.h>
#include <unistd.h>
+#include <systemd/sd-daemon.h>
+
#include <iniparser.h>
#include <keyutils.h>
@@ -106,7 +108,7 @@ int main(int argc, char **argv) {
response_new[RESPONSELEN],
passphrase_old[PASSPHRASELEN + 1],
passphrase_new[PASSPHRASELEN + 1];
- const char * tmp;
+ const char * tmp;
char challengefilename[sizeof(CHALLENGEDIR) + 11 /* "/challenge-" */ + 10 /* unsigned int in char */ + 1],
challengefiletmpname[sizeof(CHALLENGEDIR) + 11 /* "/challenge-" */ + 10 /* unsigned int in char */ + 7 /* -XXXXXX */ + 1];
int challengefile = 0, challengefiletmp = 0;
@@ -122,7 +124,7 @@ int main(int argc, char **argv) {
crypt_keyslot_info cryptkeyslot;
char * passphrase = NULL;
/* keyutils */
- key_serial_t key;
+ key_serial_t key = -1;
void * payload = NULL;
char * second_factor = NULL, * new_2nd_factor = NULL, * new_2nd_factor_verify = NULL;
/* yubikey */
@@ -262,26 +264,35 @@ int main(int argc, char **argv) {
goto out40;
}
- if (second_factor == NULL) {
- /* get second factor from key store */
- if ((key = keyctl_search(KEY_SPEC_USER_KEYRING, "user", "ykfde-2f", 0)) < 0)
+ /* try to get a second factor */
+ if (iniparser_getboolean(ini, "general:" CONF2NDFACTOR, 0) > 0 &&
+ second_factor == NULL && new_2nd_factor == NULL) {
+ if (sd_notify(0, "STATUS=0") == 0)
+ fprintf(stderr, "Not running from systemd, you may have to give\n"
+ "second factor manually if required.\n");
+ else if ((key = keyctl_search(KEY_SPEC_USER_KEYRING, "user", "ykfde-2f", 0)) < 0)
+ /* get second factor from key store */
fprintf(stderr, "Failed requesting key. That's ok if you do not use\n"
"second factor. Give it manually if required.\n");
+ /* if we have a key id we have a key - so this should succeed */
if (key > -1) {
- /* if we have a key id we have a key - so this should succeed */
if (keyctl_read_alloc(key, &payload) < 0) {
perror("Failed reading payload from key");
goto out40;
}
second_factor = payload;
- } else
+ }
+
+ /* use an empty string if second_factor is still NULL */
+ if (second_factor == NULL)
second_factor = strdup("");
}
/* warn when second factor is not enabled in config */
- if ((*second_factor != 0 || new_2nd_factor != NULL) &&
- iniparser_getboolean(ini, "general:" CONF2NDFACTOR, 0) == 0)
+ if (iniparser_getboolean(ini, "general:" CONF2NDFACTOR, 0) == 0 &&
+ ((second_factor != NULL && *second_factor != 0) ||
+ (new_2nd_factor != NULL && *new_2nd_factor != 0)))
fprintf(stderr, "Warning: Processing second factor, but not enabled in config!\n");
/* get random number and limit to printable ASCII character (32 to 126) */