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unity: Replicate default behavior if no UNITY_SPLIT_INCLUDE attributes were received

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This commit is contained in:
Tobias Brunner
2013-07-17 18:23:57 +02:00
parent 56b0fac8c9
commit 79b6ead1e4
1 changed files with 32 additions and 11 deletions
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src/libcharon/plugins/unity/unity_narrow.c
+32 -11
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@@ -35,6 +35,26 @@ struct private_unity_narrow_t {
unity_handler_t *handler;
};
/**
* Narrow the given received traffic selector with the child configuration and
* put them into the given list of TS
*/
static void narrow_ts(child_cfg_t *cfg, traffic_selector_t *ts,
linked_list_t *list)
{
linked_list_t *received, *selected;
received = linked_list_create();
received->insert_last(received, ts);
selected = cfg->get_traffic_selectors(cfg, FALSE, received, NULL);
while (selected->remove_first(selected, (void**)&ts) == SUCCESS)
{
list->insert_last(list, ts);
}
selected->destroy(selected);
received->destroy(received);
}
/**
* Narrow TS as initiator to Unity Split-Include/Local-LAN
*/
@@ -42,7 +62,6 @@ static void narrow_initiator(private_unity_narrow_t *this, ike_sa_t *ike_sa,
child_cfg_t *cfg, linked_list_t *remote)
{
traffic_selector_t *current, *orig = NULL;
linked_list_t *received, *selected;
enumerator_t *enumerator;
enumerator = this->handler->create_include_enumerator(this->handler,
@@ -56,16 +75,7 @@ static void narrow_initiator(private_unity_narrow_t *this, ike_sa_t *ike_sa,
break;
}
}
/* narrow received Unity TS with the child configuration */
received = linked_list_create();
received->insert_last(received, current);
selected = cfg->get_traffic_selectors(cfg, FALSE, received, NULL);
while (selected->remove_first(selected, (void**)&current) == SUCCESS)
{
remote->insert_last(remote, current);
}
selected->destroy(selected);
received->destroy(received);
narrow_ts(cfg, current, remote);
}
enumerator->destroy(enumerator);
if (orig)
@@ -75,6 +85,15 @@ static void narrow_initiator(private_unity_narrow_t *this, ike_sa_t *ike_sa,
UNITY_SPLIT_INCLUDE, remote);
orig->destroy(orig);
}
else
{ /* since we originally changed the traffic selector to 0.0.0.0/0 local
* narrowing is not applied if no Split-Include attrs are received */
if (remote->remove_first(remote, (void**)&orig) == SUCCESS)
{
narrow_ts(cfg, orig, remote);
orig->destroy(orig);
}
}
}
/**
@@ -93,6 +112,8 @@ static void narrow_initiator_pre(linked_list_t *list)
"255.255.255.255", 65535);
if (ts)
{
DBG2(DBG_CFG, "changing proposed traffic selectors for other:");
DBG2(DBG_CFG, " %R", ts);
list->insert_last(list, ts);
}
}