ike-cfg: Add helper function to determine if a given IP address was configured

src/libcharon/config/ike_cfg.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012-2016 Tobias Brunner
+ * Copyright (C) 2012-2017 Tobias Brunner
  * Copyright (C) 2005-2007 Martin Willi
  * Copyright (C) 2005 Jan Hutter
  * Hochschule fuer Technik Rapperswil
@@ -556,6 +556,39 @@ int ike_cfg_get_family(ike_cfg_t *cfg, bool local)
 	return family;
 }
 
+/**
+ * Described in header.
+ */
+bool ike_cfg_has_address(ike_cfg_t *cfg, host_t *addr, bool local)
+{
+	private_ike_cfg_t *this = (private_ike_cfg_t*)cfg;
+	enumerator_t *enumerator;
+	host_t *host;
+	char *str;
+	bool found = FALSE;
+
+	if (local)
+	{
+		enumerator = this->my_hosts->create_enumerator(this->my_hosts);
+	}
+	else
+	{
+		enumerator = this->other_hosts->create_enumerator(this->other_hosts);
+	}
+	while (enumerator->enumerate(enumerator, &str))
+	{
+		host = host_create_from_string(str, 0);
+		if (host && addr->ip_equals(addr, host))
+		{
+			found = TRUE;
+			break;
+		}
+		DESTROY_IF(host);
+	}
+	enumerator->destroy(enumerator);
+	return found;
+}
+
 /**
  * Described in header.
  */

src/libcharon/config/ike_cfg.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012-2016 Tobias Brunner
+ * Copyright (C) 2012-2017 Tobias Brunner
  * Copyright (C) 2005-2007 Martin Willi
  * Copyright (C) 2005 Jan Hutter
  * Hochschule fuer Technik Rapperswil
@@ -266,4 +266,15 @@ ike_cfg_t *ike_cfg_create(ike_version_t version, bool certreq, bool force_encap,
  */
 int ike_cfg_get_family(ike_cfg_t *this, bool local);
 
+/**
+ * Determine if the given address was explicitly configured as local or remote
+ * address.
+ *
+ * @param this				ike config to check
+ * @param addr				address to check
+ * @param local				TRUE to check local addresses, FALSE for remote
+ * @return					TRUE if address was configured
+ */
+bool ike_cfg_has_address(ike_cfg_t *this, host_t *addr, bool local);
+
 #endif /** IKE_CFG_H_ @}*/