mem-cred: Add a method to atomically replace all certificates

src/libstrongswan/credentials/sets/mem_cred.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010-2013 Tobias Brunner
+ * Copyright (C) 2010-2015 Tobias Brunner
  * Hochschule fuer Technik Rapperswil
  * Copyright (C) 2010 Martin Willi
  * Copyright (C) 2010 revosec AG
@@ -102,6 +102,7 @@ struct mem_cred_t {
 	 */
 	void (*add_shared_list)(mem_cred_t *this, shared_key_t *shared,
 							linked_list_t *owners);
+
 	/**
 	 * Add a certificate distribution point to the set.
 	 *
@@ -112,6 +113,15 @@ struct mem_cred_t {
 	void (*add_cdp)(mem_cred_t *this, certificate_type_t type,
 					identification_t *id, char *uri);
 
+	/**
+	 * Replace all certificates in this credential set with those of another.
+	 *
+	 * @param other			credential set to get certificates from
+	 * @param clone			TRUE to clone certs, FALSE to adopt them (they
+	 *						get removed from the other set)
+	 */
+	void (*replace_certs)(mem_cred_t *this, mem_cred_t *other, bool clone);
+
 	/**
 	 * Replace all secrets (private and shared keys) in this credential set
 	 * with those of another.