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- changed interface of ike_sa

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- states can access ike_sa fields now just with functions
This commit is contained in:
Jan Hutter
2005-11-25 13:42:02 +00:00
parent 40ced1dfc3
commit aad398a70c
10 changed files with 509 additions and 229 deletions
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Source/charon/sa/states/responder_init.c
+49 -25
View File
@@ -142,7 +142,7 @@ struct private_responder_init_t {
/**
* Implements state_t.get_state
*/
static status_t process_message(private_responder_init_t *this, message_t *message, state_t **new_state)
static status_t process_message(private_responder_init_t *this, message_t *message)
{
iterator_t *payloads;
host_t *source, *destination;
@@ -153,6 +153,9 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
chunk_t shared_secret;
exchange_type_t exchange_type;
ike_sa_init_responded_t *next_state;
host_t *my_host;
host_t *other_host;
randomizer_t *randomizer;
exchange_type = message->get_exchange_type(message);
if (exchange_type != IKE_SA_INIT)
@@ -172,8 +175,23 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
message->get_destination(message, &destination);
/* we need to clone them, since we destroy the message later */
destination->clone(destination, &(this->ike_sa->me.host));
source->clone(source, &(this->ike_sa->other.host));
status = destination->clone(destination, &my_host);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: could not clone my host informations");
return status;
}
status = source->clone(source, &other_host);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: could not clone other host informations");
my_host->destroy(my_host);
return status;
}
this->ike_sa->set_my_host(this->ike_sa, my_host);
this->ike_sa->set_other_host(this->ike_sa, other_host);
/* parse incoming message */
status = message->parse_body(message);
@@ -205,9 +223,10 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
{
sa_payload_t *sa_payload = (sa_payload_t*)payload;
iterator_t *suggested_proposals, *accepted_proposals;
encryption_algorithm_t encryption_algorithm = ENCR_UNDEFINED;
pseudo_random_function_t pseudo_random_function = PRF_UNDEFINED;
integrity_algorithm_t integrity_algorithm = AUTH_UNDEFINED;
encryption_algorithm_t encryption_algorithm = ENCR_UNDEFINED;
pseudo_random_function_t pseudo_random_function = PRF_UNDEFINED;
integrity_algorithm_t integrity_algorithm = AUTH_UNDEFINED;
prf_t *prf;
status = this->proposals->create_iterator(this->proposals, &accepted_proposals, FALSE);
if (status != SUCCESS)
@@ -229,7 +248,7 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
/* now let the configuration-manager select a subset of the proposals */
status = global_configuration_manager->select_proposals_for_host(global_configuration_manager,
this->ike_sa->other.host, suggested_proposals, accepted_proposals);
this->ike_sa->get_other_host(this->ike_sa), suggested_proposals, accepted_proposals);
if (status != SUCCESS)
{
this->logger->log(this->logger, CONTROL | MORE, "No proposal of suggested proposals selected");
@@ -246,7 +265,7 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
/* now let the configuration-manager return the transforms for the given proposal*/
this->logger->log(this->logger, CONTROL | MOST, "Get transforms for accepted proposal");
status = global_configuration_manager->get_transforms_for_host_and_proposals(global_configuration_manager,
this->ike_sa->other.host, accepted_proposals, &encryption_algorithm,&pseudo_random_function,&integrity_algorithm);
this->ike_sa->get_other_host(this->ike_sa), accepted_proposals, &encryption_algorithm,&pseudo_random_function,&integrity_algorithm);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR | MORE, "Accepted proposals not supported?!");
@@ -256,13 +275,14 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
}
accepted_proposals->destroy(accepted_proposals);
this->ike_sa->prf = prf_create(pseudo_random_function);
if (this->ike_sa->prf == NULL)
prf = prf_create(pseudo_random_function);
if (prf == NULL)
{
this->logger->log(this->logger, ERROR | MORE, "PRF type not supported");
payloads->destroy(payloads);
return FAILED;
}
this->ike_sa->set_prf(this->ike_sa,prf);
this->logger->log(this->logger, CONTROL | MORE, "SA Payload processed");
/* ok, we have what we need for sa_payload (proposals are stored in this->proposals)*/
@@ -278,7 +298,7 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
group = ke_payload->get_dh_group_number(ke_payload);
status = global_configuration_manager->is_dh_group_allowed_for_host(global_configuration_manager,
this->ike_sa->other.host, group, &allowed_group);
this->ike_sa->get_other_host(this->ike_sa), group, &allowed_group);
if (status != SUCCESS)
{
@@ -355,8 +375,11 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
this->logger->log(this->logger, CONTROL | MORE, "Request successfully handled. Going to create reply.");
this->logger->log(this->logger, CONTROL | MOST, "Going to create nonce.");
if (this->ike_sa->randomizer->allocate_pseudo_random_bytes(this->ike_sa->randomizer, NONCE_SIZE, &(this->sent_nonce)) != SUCCESS)
this->logger->log(this->logger, CONTROL | MOST, "Going to create nonce.");
randomizer = this->ike_sa->get_randomizer(this->ike_sa);
if (randomizer->allocate_pseudo_random_bytes(randomizer, NONCE_SIZE, &(this->sent_nonce)) != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not create nonce!");
return OUT_OF_RES;
@@ -447,6 +470,7 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not add packet to send queue");
packet->destroy(packet);
return status;
}
@@ -462,19 +486,19 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
return FAILED;
}
if ( this->ike_sa->last_responded_message != NULL)
/* last message can now be set */
status = this->ike_sa->set_last_responded_message(this->ike_sa, response);
if (status != SUCCESS)
{
/* destroy message */
this ->logger->log(this->logger, CONTROL|MOST, "Destroy stored last responded message");
this->ike_sa->last_responded_message->destroy(this->ike_sa->last_responded_message);
this->logger->log(this->logger, ERROR, "Could not set last responded message");
response->destroy(response);
(next_state->state_interface).destroy(&(next_state->state_interface));
return status;
}
this->ike_sa->last_responded_message = response;
/* message counter can now be increased */
this ->logger->log(this->logger, CONTROL|MOST, "Increate message counter for incoming messages");
this->ike_sa->message_id_in++;
*new_state = (state_t *) next_state;
/* state can now be changed */
this->ike_sa->set_new_state(this->ike_sa, (state_t *) next_state);
/* state has NOW changed :-) */
this ->logger->log(this->logger, CONTROL|MORE, "Changed state of IKE_SA from %s to %s",mapping_find(ike_sa_state_m,RESPONDER_INIT),mapping_find(ike_sa_state_m,IKE_SA_INIT_RESPONDED) );
@@ -717,7 +741,7 @@ responder_init_t *responder_init_create(protected_ike_sa_t *ike_sa)
}
/* interface functions */
this->public.state_interface.process_message = (status_t (*) (state_t *,message_t *,state_t **)) process_message;
this->public.state_interface.process_message = (status_t (*) (state_t *,message_t *)) process_message;
this->public.state_interface.get_state = (ike_sa_state_t (*) (state_t *)) get_state;
this->public.state_interface.destroy = (status_t (*) (state_t *)) destroy;
@@ -729,7 +753,7 @@ responder_init_t *responder_init_create(protected_ike_sa_t *ike_sa)
/* private data */
this->ike_sa = ike_sa;
this->logger = this->ike_sa->logger;
this->logger = this->ike_sa->get_logger(this->ike_sa);
this->sent_nonce.ptr = NULL;
this->sent_nonce.len = 0;
this->received_nonce.ptr = NULL;