denozord/strongswan-ext
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

- new configuration support added to ike_sa and states

Browse Source
This commit is contained in:
Jan Hutter
2005-12-01 17:16:10 +00:00
parent bae00c63f7
commit a9428251cd
16 changed files with 772 additions and 597 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Source/charon/sa/states/responder_init.c
+36 -71
View File
@@ -89,10 +89,10 @@ struct private_responder_init_t {
logger_t *logger;
/**
* Proposals used to initiate connection
* Selected proposal from suggested ones.
*/
linked_list_t *proposals;
ike_proposal_t selected_proposal;
/**
* Builds the SA payload for this state.
*
@@ -147,6 +147,8 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
host_t *my_host;
host_t *other_host;
randomizer_t *randomizer;
init_config_t *init_config;
diffie_hellman_group_t dh_group = MODP_UNDEFINED;
exchange_type = message->get_exchange_type(message);
if (exchange_type != IKE_SA_INIT)
@@ -154,16 +156,26 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
this->logger->log(this->logger, ERROR | MORE, "Message of type %s not supported in state responder_init",mapping_find(exchange_type_m,exchange_type));
return FAILED;
}
if (!message->get_request(message))
{
this->logger->log(this->logger, ERROR | MORE, "Only requests of type IKE_SA_INIT supported in state responder_init");
return FAILED;
}
/* this is the first message we process, so copy host infos */
source = message->get_source(message);
destination = message->get_destination(message);
status = charon->configuration_manager->get_init_config_for_host(charon->configuration_manager,destination,source,&init_config);
if (status != SUCCESS)
{
/* no configuration matches given host */
this->logger->log(this->logger, ERROR | MORE, "No INIT configuration found for given remote and local hosts");
return FAILED;
}
this->ike_sa->set_init_config(this->ike_sa,init_config);
/* we need to clone them, since we destroy the message later */
my_host = destination->clone(destination);
@@ -195,44 +207,30 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
case SECURITY_ASSOCIATION:
{
sa_payload_t *sa_payload = (sa_payload_t*)payload;
iterator_t *suggested_proposals, *accepted_proposals;
proposal_substructure_t *accepted_proposal;
accepted_proposals = this->proposals->create_iterator(this->proposals, FALSE);
ike_proposal_t *ike_proposals;
size_t proposal_count;
/* get the list of suggested proposals */
suggested_proposals = sa_payload->create_proposal_substructure_iterator(sa_payload, TRUE);
/* now let the configuration-manager select a subset of the proposals */
status = charon->configuration_manager->select_proposals_for_host(charon->configuration_manager,
this->ike_sa->get_other_host(this->ike_sa), suggested_proposals, accepted_proposals);
status = sa_payload->get_ike_proposals (sa_payload, &ike_proposals,&proposal_count);
if (status != SUCCESS)
{
this->logger->log(this->logger, CONTROL | MORE, "No proposal of suggested proposals selected");
suggested_proposals->destroy(suggested_proposals);
accepted_proposals->destroy(accepted_proposals);
this->logger->log(this->logger, ERROR | MORE, "SA payload does not contain IKE proposals");
payloads->destroy(payloads);
return status;
}
status = init_config->select_proposal(init_config, ike_proposals,proposal_count,&(this->selected_proposal));
allocator_free(ike_proposals);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR | MORE, "No proposal of suggested proposals selected");
payloads->destroy(payloads);
return status;
}
/* iterators are not needed anymore */
suggested_proposals->destroy(suggested_proposals);
dh_group = this->selected_proposal.diffie_hellman_group;
/* let the ike_sa create their own transforms from proposal informations */
accepted_proposals->reset(accepted_proposals);
/* TODO check for true*/
accepted_proposals->has_next(accepted_proposals);
status = accepted_proposals->current(accepted_proposals,(void **)&accepted_proposal);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR | MORE, "Accepted proposals not supported?!");
accepted_proposals->destroy(accepted_proposals);
payloads->destroy(payloads);
return status;
}
status = this->ike_sa->create_transforms_from_proposal(this->ike_sa,accepted_proposal);
accepted_proposals->destroy(accepted_proposals);
status = this->ike_sa->create_transforms_from_proposal(this->ike_sa,&(this->selected_proposal));
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR | MORE, "Transform objects could not be created from selected proposal");
@@ -253,12 +251,9 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
group = ke_payload->get_dh_group_number(ke_payload);
status = charon->configuration_manager->is_dh_group_allowed_for_host(charon->configuration_manager,
this->ike_sa->get_other_host(this->ike_sa), group, &allowed_group);
if (status != SUCCESS)
if (dh_group == MODP_UNDEFINED)
{
this->logger->log(this->logger, ERROR | MORE, "Could not get informations about DH group");
this->logger->log(this->logger, ERROR | MORE, "Could not get informations about DH group. SA payload before KE payload?");
payloads->destroy(payloads);
return status;
}
@@ -387,27 +382,12 @@ static status_t process_message(private_responder_init_t *this, message_t *messa
static void build_sa_payload(private_responder_init_t *this, payload_t **payload)
{
sa_payload_t* sa_payload;
iterator_t *proposal_iterator;
/* 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");
proposal_iterator = this->proposals->create_iterator(this->proposals, FALSE);
sa_payload = sa_payload_create();
while (proposal_iterator->has_next(proposal_iterator))
{
proposal_substructure_t *current_proposal;
proposal_substructure_t *current_proposal_clone;
proposal_iterator->current(proposal_iterator,(void **) &current_proposal);
current_proposal_clone = current_proposal->clone(current_proposal);
sa_payload->add_proposal_substructure(sa_payload,current_proposal_clone);
}
proposal_iterator->destroy(proposal_iterator);
sa_payload = sa_payload_create_from_ike_proposals(&(this->selected_proposal),1);
*payload = (payload_t *) sa_payload;
}
@@ -466,13 +446,6 @@ static void destroy(private_responder_init_t *this)
/* destroy stored proposal */
this->logger->log(this->logger, CONTROL | MOST, "Destroy stored proposals");
while (this->proposals->get_count(this->proposals) > 0)
{
proposal_substructure_t *current_proposal;
this->proposals->remove_first(this->proposals,(void **)&current_proposal);
current_proposal->destroy(current_proposal);
}
this->proposals->destroy(this->proposals);
allocator_free(this->sent_nonce.ptr);
allocator_free(this->received_nonce.ptr);
@@ -493,13 +466,6 @@ static void destroy_after_state_change (private_responder_init_t *this)
/* destroy stored proposal */
this->logger->log(this->logger, CONTROL | MOST, "Destroy stored proposals");
while (this->proposals->get_count(this->proposals) > 0)
{
proposal_substructure_t *current_proposal;
this->proposals->remove_first(this->proposals,(void **)&current_proposal);
current_proposal->destroy(current_proposal);
}
this->proposals->destroy(this->proposals);
/* destroy diffie hellman object */
if (this->diffie_hellman != NULL)
@@ -534,7 +500,6 @@ responder_init_t *responder_init_create(protected_ike_sa_t *ike_sa)
this->logger = this->ike_sa->get_logger(this->ike_sa);
this->sent_nonce = CHUNK_INITIALIZER;
this->received_nonce = CHUNK_INITIALIZER;
this->proposals = linked_list_create();
return &(this->public);
}