1 files changed, 40 insertions, 40 deletions

diff --git a/src/charon/sa/tasks/ike_natd.c b/src/charon/sa/tasks/ike_natd.c
index bb18e7bda..9121fe2ea 100644
--- a/src/charon/sa/tasks/ike_natd.c
+++ b/src/charon/sa/tasks/ike_natd.c
@@ -30,47 +30,47 @@ typedef struct private_ike_natd_t private_ike_natd_t;
  * Private members of a ike_natd_t task.
  */
 struct private_ike_natd_t {
-	
+
 	/**
 	 * Public methods and task_t interface.
 	 */
 	ike_natd_t public;
-	
+
 	/**
 	 * Assigned IKE_SA.
 	 */
 	ike_sa_t *ike_sa;
-	
+
 	/**
 	 * Are we the initiator?
 	 */
 	bool initiator;
-	
+
 	/**
 	 * Hasher used to build NAT detection hashes
 	 */
 	hasher_t *hasher;
-	
+
 	/**
 	 * Did we process any NAT detection notifys for a source address?
 	 */
 	bool src_seen;
-	
+
 	/**
 	 * Did we process any NAT detection notifys for a destination address?
 	 */
 	bool dst_seen;
-	
+
 	/**
 	 * Have we found a matching source address NAT hash?
 	 */
 	bool src_matched;
-	
+
 	/**
 	 * Have we found a matching destination address NAT hash?
 	 */
 	bool dst_matched;
-	
+
 	/**
 	 * whether NAT mappings for our NATed address has changed
 	 */
@@ -88,7 +88,7 @@ static chunk_t generate_natd_hash(private_ike_natd_t *this,
 	chunk_t natd_hash;
 	u_int64_t spi_i, spi_r;
 	u_int16_t port;
-	
+
 	/* prepare all required chunks */
 	spi_i = ike_sa_id->get_initiator_spi(ike_sa_id);
 	spi_r = ike_sa_id->get_responder_spi(ike_sa_id);
@@ -100,13 +100,13 @@ static chunk_t generate_natd_hash(private_ike_natd_t *this,
 	port_chunk.ptr = (void*)&port;
 	port_chunk.len = sizeof(port);
 	addr_chunk = host->get_address(host);
-		
+
 	/*  natd_hash = SHA1( spi_i | spi_r | address | port ) */
 	natd_chunk = chunk_cat("cccc", spi_i_chunk, spi_r_chunk, addr_chunk, port_chunk);
 	this->hasher->allocate_hash(this->hasher, natd_chunk, &natd_hash);
 	DBG3(DBG_IKE, "natd_chunk %B", &natd_chunk);
 	DBG3(DBG_IKE, "natd_hash %B", &natd_hash);
-	
+
 	chunk_free(&natd_chunk);
 	return natd_hash;
 }
@@ -118,7 +118,7 @@ static chunk_t generate_natd_hash_faked(private_ike_natd_t *this)
 {
 	rng_t *rng;
 	chunk_t chunk;
-	
+
 	rng = lib->crypto->create_rng(lib->crypto, RNG_WEAK);
 	if (!rng)
 	{
@@ -137,10 +137,10 @@ static notify_payload_t *build_natd_payload(private_ike_natd_t *this,
 											notify_type_t type, host_t *host)
 {
 	chunk_t hash;
-	notify_payload_t *notify;	
+	notify_payload_t *notify;
 	ike_sa_id_t *ike_sa_id;
 	ike_cfg_t *config;
-	
+
 	ike_sa_id = this->ike_sa->get_id(this->ike_sa);
 	config = this->ike_sa->get_ike_cfg(this->ike_sa);
 	if (config->force_encap(config) && type == NAT_DETECTION_SOURCE_IP)
@@ -155,7 +155,7 @@ static notify_payload_t *build_natd_payload(private_ike_natd_t *this,
 	notify->set_notify_type(notify, type);
 	notify->set_notification_data(notify, hash);
 	chunk_free(&hash);
-	
+
 	return notify;
 }
 
@@ -171,17 +171,17 @@ static void process_payloads(private_ike_natd_t *this, message_t *message)
 	ike_sa_id_t *ike_sa_id;
 	host_t *me, *other;
 	ike_cfg_t *config;
-	
+
 	/* Precompute NAT-D hashes for incoming NAT notify comparison */
 	ike_sa_id = message->get_ike_sa_id(message);
 	me = message->get_destination(message);
 	other = message->get_source(message);
 	dst_hash = generate_natd_hash(this, ike_sa_id, me);
 	src_hash = generate_natd_hash(this, ike_sa_id, other);
-	
+
 	DBG3(DBG_IKE, "precalculated src_hash %B", &src_hash);
 	DBG3(DBG_IKE, "precalculated dst_hash %B", &dst_hash);
-	
+
 	enumerator = message->create_payload_enumerator(message);
 	while (enumerator->enumerate(enumerator, &payload))
 	{
@@ -234,10 +234,10 @@ static void process_payloads(private_ike_natd_t *this, message_t *message)
 		}
 	}
 	enumerator->destroy(enumerator);
-	
+
 	chunk_free(&src_hash);
 	chunk_free(&dst_hash);
-	
+
 	if (this->src_seen && this->dst_seen)
 	{
 		this->ike_sa->enable_extension(this->ike_sa, EXT_NATT);
@@ -245,12 +245,12 @@ static void process_payloads(private_ike_natd_t *this, message_t *message)
 		this->ike_sa->set_condition(this->ike_sa, COND_NAT_HERE,
 									!this->dst_matched);
 		this->ike_sa->set_condition(this->ike_sa, COND_NAT_THERE,
-									!this->src_matched);	
+									!this->src_matched);
 		config = this->ike_sa->get_ike_cfg(this->ike_sa);
 		if (this->dst_matched && this->src_matched &&
 			config->force_encap(config))
 		{
-			this->ike_sa->set_condition(this->ike_sa, COND_NAT_FAKE, TRUE);	
+			this->ike_sa->set_condition(this->ike_sa, COND_NAT_FAKE, TRUE);
 		}
 	}
 }
@@ -261,7 +261,7 @@ static void process_payloads(private_ike_natd_t *this, message_t *message)
 static status_t process_i(private_ike_natd_t *this, message_t *message)
 {
 	process_payloads(this, message);
-	
+
 	if (message->get_exchange_type(message) == IKE_SA_INIT)
 	{
 		peer_cfg_t *peer_cfg = this->ike_sa->get_peer_cfg(this->ike_sa);
@@ -275,10 +275,10 @@ static status_t process_i(private_ike_natd_t *this, message_t *message)
 			return SUCCESS;
 		}
 #endif /* ME */
-		
+
 		if (this->ike_sa->has_condition(this->ike_sa, COND_NAT_ANY) ||
 #ifdef ME
-			/* if we are on a mediation connection we swith to port 4500 even
+			/* if we are on a mediation connection we switch to port 4500 even
 			 * if no NAT is detected. */
 			peer_cfg->is_mediation(peer_cfg) ||
 #endif /* ME */
@@ -288,7 +288,7 @@ static status_t process_i(private_ike_natd_t *this, message_t *message)
 			 this->ike_sa->supports_extension(this->ike_sa, EXT_NATT)))
 		{
 			host_t *me, *other;
-		
+
 			/* do not switch if we have a custom port from mobike/NAT */
 			me = this->ike_sa->get_my_host(this->ike_sa);
 			if (me->get_port(me) == IKEV2_UDP_PORT)
@@ -302,7 +302,7 @@ static status_t process_i(private_ike_natd_t *this, message_t *message)
 			}
 		}
 	}
-	
+
 	return SUCCESS;
 }
 
@@ -314,18 +314,18 @@ static status_t build_i(private_ike_natd_t *this, message_t *message)
 	notify_payload_t *notify;
 	enumerator_t *enumerator;
 	host_t *host;
-	
+
 	if (this->hasher == NULL)
 	{
 		DBG1(DBG_IKE, "unable to build NATD payloads, SHA1 not supported");
 		return NEED_MORE;
 	}
-	
+
 	/* destination is always set */
 	host = message->get_destination(message);
 	notify = build_natd_payload(this, NAT_DETECTION_DESTINATION_IP, host);
 	message->add_payload(message, (payload_t*)notify);
-	
+
 	/* source may be any, we have 3 possibilities to get our source address:
 	 * 1. It is defined in the config => use the one of the IKE_SA
 	 * 2. We do a routing lookup in the kernel interface
@@ -374,7 +374,7 @@ static status_t build_r(private_ike_natd_t *this, message_t *message)
 {
 	notify_payload_t *notify;
 	host_t *me, *other;
-	
+
 	/* only add notifies on successfull responses. */
 	if (message->get_exchange_type(message) == IKE_SA_INIT &&
 		message->get_payload(message, SECURITY_ASSOCIATION) == NULL)
@@ -389,12 +389,12 @@ static status_t build_r(private_ike_natd_t *this, message_t *message)
 			DBG1(DBG_IKE, "unable to build NATD payloads, SHA1 not supported");
 			return SUCCESS;
 		}
-	
+
 		/* initiator seems to support NAT detection, add response */
 		me = message->get_source(message);
 		notify = build_natd_payload(this, NAT_DETECTION_SOURCE_IP, me);
 		message->add_payload(message, (payload_t*)notify);
-		
+
 		other = message->get_destination(message);
 		notify = build_natd_payload(this, NAT_DETECTION_DESTINATION_IP, other);
 		message->add_payload(message, (payload_t*)notify);
@@ -406,9 +406,9 @@ static status_t build_r(private_ike_natd_t *this, message_t *message)
  * Implementation of task_t.process for responder
  */
 static status_t process_r(private_ike_natd_t *this, message_t *message)
-{	
+{
 	process_payloads(this, message);
-	
+
 	return NEED_MORE;
 }
 
@@ -460,7 +460,7 @@ ike_natd_t *ike_natd_create(ike_sa_t *ike_sa, bool initiator)
 	this->public.task.get_type = (task_type_t(*)(task_t*))get_type;
 	this->public.task.migrate = (void(*)(task_t*,ike_sa_t*))migrate;
 	this->public.task.destroy = (void(*)(task_t*))destroy;
-	
+
 	if (initiator)
 	{
 		this->public.task.build = (status_t(*)(task_t*,message_t*))build_i;
@@ -471,9 +471,9 @@ ike_natd_t *ike_natd_create(ike_sa_t *ike_sa, bool initiator)
 		this->public.task.build = (status_t(*)(task_t*,message_t*))build_r;
 		this->public.task.process = (status_t(*)(task_t*,message_t*))process_r;
 	}
-	
+
 	this->public.has_mapping_changed = (bool(*)(ike_natd_t*))has_mapping_changed;
-	
+
 	this->ike_sa = ike_sa;
 	this->initiator = initiator;
 	this->hasher = lib->crypto->create_hasher(lib->crypto, HASH_SHA1);
@@ -482,6 +482,6 @@ ike_natd_t *ike_natd_create(ike_sa_t *ike_sa, bool initiator)
 	this->src_matched = FALSE;
 	this->dst_matched = FALSE;
 	this->mapping_changed = FALSE;
-	
+
 	return &this->public;
 }