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Send empty CDATA batch if TNC client has no data to send

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This commit is contained in:
Andreas Steffen
2012-12-23 22:16:30 +01:00
parent ef33a4ab82
commit 9787b9f2e0
1 changed files with 28 additions and 16 deletions
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src/libcharon/plugins/tnccs_20/tnccs_20.c
+28 -16
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@@ -646,28 +646,40 @@ METHOD(tls_t, build, status_t,
if (this->batch_type == PB_BATCH_NONE)
{
if (this->is_server && state == PB_STATE_SERVER_WORKING)
if (this->is_server)
{
if (this->state_machine->get_empty_cdata(this->state_machine))
if (state == PB_STATE_SERVER_WORKING)
{
check_and_build_recommendation(this);
}
else
{
DBG2(DBG_TNC, "no recommendation available yet, "
"sending empty PB-TNC SDATA batch");
this->batch_type = PB_BATCH_SDATA;
if (this->state_machine->get_empty_cdata(this->state_machine))
{
check_and_build_recommendation(this);
}
else
{
DBG2(DBG_TNC, "no recommendation available yet, "
"sending empty PB-TNC SDATA batch");
this->batch_type = PB_BATCH_SDATA;
}
}
}
else
{
/**
* In the DECIDED state and if no CRETRY is under way,
* a PB-TNC client replies with an empty CLOSE batch.
*/
if (state == PB_STATE_DECIDED)
{
switch (state)
{
this->batch_type = PB_BATCH_CLOSE;
case PB_STATE_CLIENT_WORKING:
DBG2(DBG_TNC, "no client data to send, "
"sending empty PB-TNC CDATA batch");
this->batch_type = PB_BATCH_CDATA;
break;
case PB_STATE_DECIDED:
/**
* In the DECIDED state and if no CRETRY is under way,
* a PB-TNC client replies with an empty CLOSE batch.
*/
this->batch_type = PB_BATCH_CLOSE;
break;
default:
break;
}
}
}