1 files changed, 71 insertions, 0 deletions
diff --git a/src/auth/mech-otp-common.c b/src/auth/mech-otp-common.c
new file mode 100644
index 0000000..753fcbb
--- /dev/null
+++ b/src/auth/mech-otp-common.c
@@ -0,0 +1,71 @@
+/*
+ * Common code for OTP authentication mechanisms.
+ *
+ * Copyright (c) 2006 Andrey Panin <pazke@donpac.ru>
+ *
+ * This software is released under the MIT license.
+ */
+
+#include "auth-common.h"
+#include "hash.h"
+#include "mech.h"
+
+#include "otp.h"
+#include "mech-otp-common.h"
+
+static HASH_TABLE(char *, struct auth_request *) otp_lock_table;
+
+void otp_lock_init(void)
+{
+	if (hash_table_is_created(otp_lock_table))
+		return;
+
+	hash_table_create(&otp_lock_table, default_pool, 128,
+			  strcase_hash, strcasecmp);
+}
+
+bool otp_try_lock(struct auth_request *auth_request)
+{
+	if (hash_table_lookup(otp_lock_table, auth_request->fields.user) != NULL)
+		return FALSE;
+
+	hash_table_insert(otp_lock_table, auth_request->fields.user, auth_request);
+	return TRUE;
+}
+
+void otp_unlock(struct auth_request *auth_request)
+{
+	struct otp_auth_request *request =
+		(struct otp_auth_request *)auth_request;
+
+	if (!request->lock)
+		return;
+
+	hash_table_remove(otp_lock_table, auth_request->fields.user);
+	request->lock = FALSE;
+}
+
+void otp_set_credentials_callback(bool success,
+				  struct auth_request *auth_request)
+{
+	if (success)
+		auth_request_success(auth_request, "", 0);
+	else {
+		auth_request_internal_failure(auth_request);
+		otp_unlock(auth_request);
+	}
+
+	otp_unlock(auth_request);
+}
+
+void mech_otp_auth_free(struct auth_request *auth_request)
+{
+	otp_unlock(auth_request);
+
+	pool_unref(&auth_request->pool);
+}
+
+void mech_otp_deinit(void)
+{
+	hash_table_destroy(&otp_lock_table);
+}