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- return value cleanup

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This commit is contained in:
Martin Willi
2005-11-28 20:29:47 +00:00
parent 3fe058703f
commit d048df5cab
85 changed files with 1086 additions and 2680 deletions
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Source/charon/sa/states/responder_init.c
+53 -256
View File
@@ -1,7 +1,7 @@
/**
* @file responder_init.c
*
* @brief Start state of a IKE_SA as responder
* @brief Implementation of responder_init_t.
*
*/
@@ -99,11 +99,8 @@ struct private_responder_init_t {
* @param this calling object
* @param payload The generated SA payload object of type ke_payload_t is
* stored at this location.
* @return
* - SUCCESS
* - OUT_OF_RES
*/
status_t (*build_sa_payload) (private_responder_init_t *this, payload_t **payload);
void (*build_sa_payload) (private_responder_init_t *this, payload_t **payload);
/**
* Builds the KE payload for this state.
@@ -111,22 +108,17 @@ struct private_responder_init_t {
* @param this calling object
* @param payload The generated KE payload object of type ke_payload_t is
* stored at this location.
* @return
* - SUCCESS
* - OUT_OF_RES
*/
status_t (*build_ke_payload) (private_responder_init_t *this, payload_t **payload);
void (*build_ke_payload) (private_responder_init_t *this, payload_t **payload);
/**
* Builds the NONCE payload for this state.
*
* @param this calling object
* @param payload The generated NONCE payload object of type ke_payload_t is
* stored at this location.
* @return
* - SUCCESS
* - OUT_OF_RES
*/
status_t (*build_nonce_payload) (private_responder_init_t *this, payload_t **payload);
void (*build_nonce_payload) (private_responder_init_t *this, payload_t **payload);
/**
* Destroy function called internally of this class after state change succeeded.
@@ -134,9 +126,8 @@ struct private_responder_init_t {
* This destroy function does not destroy objects which were passed to the new state.
*
* @param this calling object
* @return SUCCESS in any case
*/
status_t (*destroy_after_state_change) (private_responder_init_t *this);
void (*destroy_after_state_change) (private_responder_init_t *this);
};
/**
@@ -175,20 +166,8 @@ 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 */
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;
}
my_host = destination->clone(destination);
other_host = source->clone(source);
this->ike_sa->set_my_host(this->ike_sa, my_host);
this->ike_sa->set_other_host(this->ike_sa, other_host);
@@ -198,7 +177,7 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR | MORE, "Could not parse body of request message");
return status;
return status;
}
/* iterate over incoming payloads. We can be sure, the message contains only accepted payloads! */
@@ -219,24 +198,11 @@ 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;
proposal_substructure_t *accepted_proposal;
status = this->proposals->create_iterator(this->proposals, &accepted_proposals, FALSE);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: Could not create iterator on list for proposals");
payloads->destroy(payloads);
return status;
}
this->proposals->create_iterator(this->proposals, &accepted_proposals, FALSE);
/* get the list of suggested proposals */
status = sa_payload->create_proposal_substructure_iterator(sa_payload, &suggested_proposals, TRUE);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: Could not create iterator on suggested proposals");
accepted_proposals->destroy(accepted_proposals);
payloads->destroy(payloads);
return status;
}
sa_payload->create_proposal_substructure_iterator(sa_payload, &suggested_proposals, TRUE);
/* now let the configuration-manager select a subset of the proposals */
status = global_configuration_manager->select_proposals_for_host(global_configuration_manager,
@@ -253,7 +219,6 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
/* iterators are not needed anymore */
suggested_proposals->destroy(suggested_proposals);
/* let the ike_sa create their own transforms from proposal informations */
accepted_proposals->reset(accepted_proposals);
/* TODO check for true*/
@@ -309,19 +274,12 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
{
this->logger->log(this->logger, ERROR, "Could not generate DH object");
payloads->destroy(payloads);
return OUT_OF_RES;
return NOT_SUPPORTED;
}
this->logger->log(this->logger, CONTROL | MORE, "Set other DH public value");
status = dh->set_other_public_value(dh, ke_payload->get_key_exchange_data(ke_payload));
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not set other DH public value");
dh->destroy(dh);
payloads->destroy(payloads);
return OUT_OF_RES;
}
dh->set_other_public_value(dh, ke_payload->get_key_exchange_data(ke_payload));
this->diffie_hellman = dh;
@@ -332,22 +290,11 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
{
nonce_payload_t *nonce_payload = (nonce_payload_t*)payload;
if (this->received_nonce.ptr != NULL)
{
this->logger->log(this->logger, CONTROL | MOST, "Destroy stored received nonce");
allocator_free(this->received_nonce.ptr);
this->received_nonce.ptr = NULL;
this->received_nonce.len = 0;
}
allocator_free(this->received_nonce.ptr);
this->received_nonce = CHUNK_INITIALIZER;
this->logger->log(this->logger, CONTROL | MORE, "Get nonce value and store it");
status = nonce_payload->get_nonce(nonce_payload, &(this->received_nonce));
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: Could not get nonce");
payloads->destroy(payloads);
return OUT_OF_RES;
}
nonce_payload->get_nonce(nonce_payload, &(this->received_nonce));
this->logger->log(this->logger, CONTROL | MORE, "Nonce Payload processed");
break;
@@ -356,11 +303,9 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
{
this->logger->log(this->logger, ERROR | MORE, "Payload type not supported!");
payloads->destroy(payloads);
return OUT_OF_RES;
return NOT_SUPPORTED;
}
}
}
/* iterator can be destroyed */
payloads->destroy(payloads);
@@ -371,63 +316,31 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
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;
}
randomizer->allocate_pseudo_random_bytes(randomizer, NONCE_SIZE, &(this->sent_nonce));
/* store shared secret */
this->logger->log(this->logger, CONTROL | MOST, "Retrieve shared secret and store it");
status = this->diffie_hellman->get_shared_secret(this->diffie_hellman, &shared_secret);
this->logger->log_chunk(this->logger, PRIVATE, "Shared secret", &shared_secret);
status = this->ike_sa->compute_secrets(this->ike_sa,shared_secret,this->received_nonce, this->sent_nonce);
if (status != SUCCESS)
{
/* secrets could not be computed */
this->logger->log(this->logger, ERROR | MORE, "Secrets could not be computed!");
return status;
}
this->ike_sa->compute_secrets(this->ike_sa,shared_secret,this->received_nonce, this->sent_nonce);
/* set up the reply */
status = this->ike_sa->build_message(this->ike_sa, IKE_SA_INIT, FALSE, &response);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not create empty message");
return status;
}
this->ike_sa->build_message(this->ike_sa, IKE_SA_INIT, FALSE, &response);
/* build SA payload */
status = this->build_sa_payload(this, &payload);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not build SA payload");
return status;
}
this->build_sa_payload(this, &payload);
this->logger->log(this->logger, CONTROL|MOST, "add SA payload to message");
response->add_payload(response, payload);
/* build KE payload */
status = this->build_ke_payload(this,&payload);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not build KE payload");
return status;
}
this->build_ke_payload(this,&payload);
this->logger->log(this->logger, CONTROL|MOST, "add KE payload to message");
response->add_payload(response, payload);
/* build Nonce payload */
status = this->build_nonce_payload(this, &payload);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not build NONCE payload");
return status;
}
this->build_nonce_payload(this, &payload);
this->logger->log(this->logger, CONTROL|MOST, "add nonce payload to message");
response->add_payload(response, payload);
@@ -436,30 +349,17 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
status = response->generate(response, NULL, NULL, &packet);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: could not generate packet from message");
this->logger->log(this->logger, ERROR, "could not generate packet from message");
return status;
}
this ->logger->log(this->logger, CONTROL|MOST, "Add packet to global send queue");
status = global_send_queue->add(global_send_queue, packet);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not add packet to send queue");
packet->destroy(packet);
return status;
}
this->logger->log(this->logger, CONTROL|MOST, "Add packet to global send queue");
global_send_queue->add(global_send_queue, packet);
/* state can now be changed */
this ->logger->log(this->logger, CONTROL|MOST, "Create next state object");
this->logger->log(this->logger, CONTROL|MOST, "Create next state object");
next_state = ike_sa_init_responded_create(this->ike_sa, shared_secret, this->received_nonce, this->sent_nonce);
if (next_state == NULL)
{
this ->logger->log(this->logger, ERROR, "Fatal error: could not create next state object of type ike_sa_init_responded_t");
allocator_free_chunk(&shared_secret);
return FAILED;
}
/* last message can now be set */
status = this->ike_sa->set_last_responded_message(this->ike_sa, response);
@@ -475,9 +375,9 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
/* 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) );
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) );
this ->logger->log(this->logger, CONTROL|MOST, "Destroy old sate object");
this->logger->log(this->logger, CONTROL|MOST, "Destroy old sate object");
this->destroy_after_state_change(this);
return SUCCESS;
@@ -486,142 +386,67 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
/**
* implements private_initiator_init_t.build_sa_payload
*/
static status_t build_sa_payload(private_responder_init_t *this, payload_t **payload)
static void build_sa_payload(private_responder_init_t *this, payload_t **payload)
{
sa_payload_t* sa_payload;
iterator_t *proposal_iterator;
status_t status;
/* SA payload takes proposals from this->ike_sa_init_data.proposals and writes them to the created sa_payload */
this->logger->log(this->logger, CONTROL|MORE, "building sa payload");
status = this->proposals->create_iterator(this->proposals, &proposal_iterator, FALSE);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: Could not create iterator on list for proposals");
return status;
}
this->proposals->create_iterator(this->proposals, &proposal_iterator, FALSE);
sa_payload = sa_payload_create();
if (sa_payload == NULL)
{
this->logger->log(this->logger, ERROR, "Fatal error: Could not create SA payload object");
return OUT_OF_RES;
}
while (proposal_iterator->has_next(proposal_iterator))
{
proposal_substructure_t *current_proposal;
proposal_substructure_t *current_proposal_clone;
status = proposal_iterator->current(proposal_iterator,(void **) &current_proposal);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not get current proposal needed to copy");
proposal_iterator->destroy(proposal_iterator);
sa_payload->destroy(sa_payload);
return status;
}
status = current_proposal->clone(current_proposal,&current_proposal_clone);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not clone current proposal");
proposal_iterator->destroy(proposal_iterator);
sa_payload->destroy(sa_payload);
return status;
}
status = sa_payload->add_proposal_substructure(sa_payload,current_proposal_clone);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not add cloned proposal to SA payload");
proposal_iterator->destroy(proposal_iterator);
sa_payload->destroy(sa_payload);
return status;
}
proposal_iterator->current(proposal_iterator,(void **) &current_proposal);
current_proposal->clone(current_proposal,&current_proposal_clone);
sa_payload->add_proposal_substructure(sa_payload,current_proposal_clone);
}
proposal_iterator->destroy(proposal_iterator);
this->logger->log(this->logger, CONTROL|MORE, "sa payload builded");
*payload = (payload_t *) sa_payload;
return SUCCESS;
}
/**
* implements private_initiator_init_t.build_ke_payload
*/
static status_t build_ke_payload(private_responder_init_t *this, payload_t **payload)
static void build_ke_payload(private_responder_init_t *this, payload_t **payload)
{
ke_payload_t *ke_payload;
chunk_t key_data;
status_t status;
this->logger->log(this->logger, CONTROL|MORE, "building ke payload");
this ->logger->log(this->logger, CONTROL|MORE, "get public dh value to send in ke payload");
status = this->diffie_hellman->get_my_public_value(this->diffie_hellman,&key_data);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not get my DH public value");
return status;
}
this->diffie_hellman->get_my_public_value(this->diffie_hellman,&key_data);
ke_payload = ke_payload_create();
if (ke_payload == NULL)
{
this->logger->log(this->logger, ERROR, "Could not create KE payload");
allocator_free_chunk(&key_data);
return OUT_OF_RES;
}
ke_payload->set_dh_group_number(ke_payload, MODP_1024_BIT);
if (ke_payload->set_key_exchange_data(ke_payload, key_data) != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not set key exchange data of KE payload");
ke_payload->destroy(ke_payload);
allocator_free_chunk(&key_data);
return OUT_OF_RES;
}
allocator_free_chunk(&key_data);
allocator_free_chunk(&key_data);
*payload = (payload_t *) ke_payload;
return SUCCESS;
}
/**
* implements private_initiator_init_t.build_nonce_payload
*/
static status_t build_nonce_payload(private_responder_init_t *this, payload_t **payload)
static void build_nonce_payload(private_responder_init_t *this, payload_t **payload)
{
nonce_payload_t *nonce_payload;
status_t status;
this->logger->log(this->logger, CONTROL|MORE, "building nonce payload");
nonce_payload = nonce_payload_create();
if (nonce_payload == NULL)
{
this->logger->log(this->logger, ERROR, "Fatal error: could not create nonce payload object");
return OUT_OF_RES;
}
status = nonce_payload->set_nonce(nonce_payload, this->sent_nonce);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: could not set nonce data of payload");
nonce_payload->destroy(nonce_payload);
return status;
}
*payload = (payload_t *) nonce_payload;
return SUCCESS;
}
@@ -636,7 +461,7 @@ static ike_sa_state_t get_state(private_responder_init_t *this)
/**
* Implements state_t.get_state
*/
static status_t destroy(private_responder_init_t *this)
static void destroy(private_responder_init_t *this)
{
this->logger->log(this->logger, CONTROL | MORE, "Going to destroy responder init state object");
@@ -650,35 +475,20 @@ static status_t destroy(private_responder_init_t *this)
}
this->proposals->destroy(this->proposals);
if (this->sent_nonce.ptr != NULL)
{
this->logger->log(this->logger, CONTROL | MOST, "Destroy sent nonce");
allocator_free(this->sent_nonce.ptr);
}
allocator_free(this->sent_nonce.ptr);
allocator_free(this->received_nonce.ptr);
if (this->received_nonce.ptr != NULL)
{
this->logger->log(this->logger, CONTROL | MOST, "Destroy received nonce");
allocator_free(this->received_nonce.ptr);
}
/* destroy diffie hellman object */
if (this->diffie_hellman != NULL)
{
this->logger->log(this->logger, CONTROL | MOST, "Destroy diffie_hellman_t object");
this->diffie_hellman->destroy(this->diffie_hellman);
}
allocator_free(this);
return SUCCESS;
}
/**
* Implements private_responder_init_t.destroy_after_state_change
*/
static status_t destroy_after_state_change (private_responder_init_t *this)
static void destroy_after_state_change (private_responder_init_t *this)
{
this->logger->log(this->logger, CONTROL | MORE, "Going to destroy responder_init_t state object");
@@ -700,7 +510,6 @@ static status_t destroy_after_state_change (private_responder_init_t *this)
}
allocator_free(this);
return SUCCESS;
}
/*
@@ -709,16 +518,11 @@ static status_t destroy_after_state_change (private_responder_init_t *this)
responder_init_t *responder_init_create(protected_ike_sa_t *ike_sa)
{
private_responder_init_t *this = allocator_alloc_thing(private_responder_init_t);
if (this == NULL)
{
return NULL;
}
/* interface functions */
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;
this->public.state_interface.destroy = (void (*) (state_t *)) destroy;
/* private functions */
this->build_sa_payload = build_sa_payload;
@@ -729,16 +533,9 @@ responder_init_t *responder_init_create(protected_ike_sa_t *ike_sa)
/* private data */
this->ike_sa = ike_sa;
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;
this->received_nonce.len = 0;
this->sent_nonce = CHUNK_INITIALIZER;
this->received_nonce = CHUNK_INITIALIZER;
this->proposals = linked_list_create();
if (this->proposals == NULL)
{
allocator_free(this);
return NULL;
}
return &(this->public);
}