Imported Upstream version 4.6.4

1 files changed, 104 insertions, 72 deletions

diff --git a/src/libcharon/sa/ike_sa_manager.c b/src/libcharon/sa/ike_sa_manager.c
index d695c7f7c..731ae6007 100644
--- a/src/libcharon/sa/ike_sa_manager.c
+++ b/src/libcharon/sa/ike_sa_manager.c
@@ -307,72 +307,72 @@ struct private_ike_sa_manager_t {
 	/**
 	 * Public interface of ike_sa_manager_t.
 	 */
-	 ike_sa_manager_t public;
-
-	 /**
-	  * Hash table with entries for the ike_sa_t objects.
-	  */
-	 linked_list_t **ike_sa_table;
-
-	 /**
-	  * The size of the hash table.
-	  */
-	 u_int table_size;
-
-	 /**
-	  * Mask to map the hashes to table rows.
-	  */
-	 u_int table_mask;
-
-	 /**
-	  * Segments of the hash table.
-	  */
-	 segment_t *segments;
-
-	 /**
-	  * The number of segments.
-	  */
-	 u_int segment_count;
-
-	 /**
-	  * Mask to map a table row to a segment.
-	  */
-	 u_int segment_mask;
-
-	 /**
-	  * Hash table with half_open_t objects.
-	  */
-	 linked_list_t **half_open_table;
-
-	 /**
+	ike_sa_manager_t public;
+
+	/**
+	 * Hash table with entries for the ike_sa_t objects.
+	 */
+	linked_list_t **ike_sa_table;
+
+	/**
+	 * The size of the hash table.
+	 */
+	u_int table_size;
+
+	/**
+	 * Mask to map the hashes to table rows.
+	 */
+	u_int table_mask;
+
+	/**
+	 * Segments of the hash table.
+	 */
+	segment_t *segments;
+
+	/**
+	 * The number of segments.
+	 */
+	u_int segment_count;
+
+	/**
+	 * Mask to map a table row to a segment.
+	 */
+	u_int segment_mask;
+
+	/**
+	 * Hash table with half_open_t objects.
+	 */
+	linked_list_t **half_open_table;
+
+	/**
 	  * Segments of the "half-open" hash table.
-	  */
-	 shareable_segment_t *half_open_segments;
+	 */
+	shareable_segment_t *half_open_segments;
 
-	 /**
-	  * Hash table with connected_peers_t objects.
-	  */
-	 linked_list_t **connected_peers_table;
+	/**
+	 * Hash table with connected_peers_t objects.
+	 */
+	linked_list_t **connected_peers_table;
 
-	 /**
-	  * Segments of the "connected peers" hash table.
-	  */
-	 shareable_segment_t *connected_peers_segments;
+	/**
+	 * Segments of the "connected peers" hash table.
+	 */
+	shareable_segment_t *connected_peers_segments;
 
-	 /**
-	  * RNG to get random SPIs for our side
-	  */
-	 rng_t *rng;
+	/**
+	 * RNG to get random SPIs for our side
+	 */
+	rng_t *rng;
 
-	 /**
-	  * SHA1 hasher for IKE_SA_INIT retransmit detection
-	  */
-	 hasher_t *hasher;
+	/**
+	 * SHA1 hasher for IKE_SA_INIT retransmit detection
+	 */
+	hasher_t *hasher;
 
 	/**
 	 * reuse existing IKE_SAs in checkout_by_config
 	 */
-	 bool reuse_ikesa;
+	bool reuse_ikesa;
 };
 
 /**
@@ -1134,8 +1134,7 @@ METHOD(ike_sa_manager_t, checkout_by_config, ike_sa_t*,
 METHOD(ike_sa_manager_t, checkout_by_id, ike_sa_t*,
 	private_ike_sa_manager_t *this, u_int32_t id, bool child)
 {
-	enumerator_t *enumerator;
-	iterator_t *children;
+	enumerator_t *enumerator, *children;
 	entry_t *entry;
 	ike_sa_t *ike_sa = NULL;
 	child_sa_t *child_sa;
@@ -1151,8 +1150,8 @@ METHOD(ike_sa_manager_t, checkout_by_id, ike_sa_t*,
 			/* look for a child with such a reqid ... */
 			if (child)
 			{
-				children = entry->ike_sa->create_child_sa_iterator(entry->ike_sa);
-				while (children->iterate(children, (void**)&child_sa))
+				children = entry->ike_sa->create_child_sa_enumerator(entry->ike_sa);
+				while (children->enumerate(children, (void**)&child_sa))
 				{
 					if (child_sa->get_reqid(child_sa) == id)
 					{
@@ -1188,8 +1187,7 @@ METHOD(ike_sa_manager_t, checkout_by_id, ike_sa_t*,
 METHOD(ike_sa_manager_t, checkout_by_name, ike_sa_t*,
 	private_ike_sa_manager_t *this, char *name, bool child)
 {
-	enumerator_t *enumerator;
-	iterator_t *children;
+	enumerator_t *enumerator, *children;
 	entry_t *entry;
 	ike_sa_t *ike_sa = NULL;
 	child_sa_t *child_sa;
@@ -1203,8 +1201,8 @@ METHOD(ike_sa_manager_t, checkout_by_name, ike_sa_t*,
 			/* look for a child with such a policy name ... */
 			if (child)
 			{
-				children = entry->ike_sa->create_child_sa_iterator(entry->ike_sa);
-				while (children->iterate(children, (void**)&child_sa))
+				children = entry->ike_sa->create_child_sa_enumerator(entry->ike_sa);
+				while (children->enumerate(children, (void**)&child_sa))
 				{
 					if (streq(child_sa->get_name(child_sa), name))
 					{
@@ -1238,10 +1236,10 @@ METHOD(ike_sa_manager_t, checkout_by_name, ike_sa_t*,
 }
 
 /**
- * enumerator filter function
+ * enumerator filter function, waiting variant
  */
-static bool enumerator_filter(private_ike_sa_manager_t *this,
-							  entry_t **in, ike_sa_t **out, u_int *segment)
+static bool enumerator_filter_wait(private_ike_sa_manager_t *this,
+								   entry_t **in, ike_sa_t **out, u_int *segment)
 {
 	if (wait_for_entry(this, *in, *segment))
 	{
@@ -1251,11 +1249,28 @@ static bool enumerator_filter(private_ike_sa_manager_t *this,
 	return FALSE;
 }
 
+/**
+ * enumerator filter function, skipping variant
+ */
+static bool enumerator_filter_skip(private_ike_sa_manager_t *this,
+								   entry_t **in, ike_sa_t **out, u_int *segment)
+{
+	if (!(*in)->driveout_new_threads &&
+		!(*in)->driveout_waiting_threads &&
+		!(*in)->checked_out)
+	{
+		*out = (*in)->ike_sa;
+		return TRUE;
+	}
+	return FALSE;
+}
+
 METHOD(ike_sa_manager_t, create_enumerator, enumerator_t*,
-	private_ike_sa_manager_t* this)
+	private_ike_sa_manager_t* this, bool wait)
 {
 	return enumerator_create_filter(create_table_enumerator(this),
-									(void*)enumerator_filter, this, NULL);
+			wait ? (void*)enumerator_filter_wait : (void*)enumerator_filter_skip,
+			this, NULL);
 }
 
 METHOD(ike_sa_manager_t, checkin, void,
@@ -1539,14 +1554,30 @@ METHOD(ike_sa_manager_t, has_contact, bool,
 	return found;
 }
 
-METHOD(ike_sa_manager_t, get_half_open_count, int,
+METHOD(ike_sa_manager_t, get_count, u_int,
+	private_ike_sa_manager_t *this)
+{
+	u_int segment, count = 0;
+	mutex_t *mutex;
+
+	for (segment = 0; segment < this->segment_count; segment++)
+	{
+		mutex = this->segments[segment & this->segment_mask].mutex;
+		mutex->lock(mutex);
+		count += this->segments[segment].count;
+		mutex->unlock(mutex);
+	}
+	return count;
+}
+
+METHOD(ike_sa_manager_t, get_half_open_count, u_int,
 	private_ike_sa_manager_t *this, host_t *ip)
 {
 	linked_list_t *list;
 	u_int segment, row;
 	rwlock_t *lock;
 	chunk_t addr;
-	int count = 0;
+	u_int count = 0;
 
 	if (ip)
 	{
@@ -1728,6 +1759,7 @@ ike_sa_manager_t *ike_sa_manager_create()
 			.create_enumerator = _create_enumerator,
 			.checkin = _checkin,
 			.checkin_and_destroy = _checkin_and_destroy,
+			.get_count = _get_count,
 			.get_half_open_count = _get_half_open_count,
 			.flush = _flush,
 			.destroy = _destroy,