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- fully implemented

This commit is contained in:
Jan Hutter 2005-11-22 11:58:17 +00:00
parent 19fb5a0ef1
commit dd4e8c65e4
1 changed files with 106 additions and 55 deletions
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161
Source/charon/states/initiator_init.c
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@ -85,6 +85,17 @@ struct private_initiator_init_s {
*/
logger_t *logger;
/**
* Builds the IKE_SA_INIT request message.
*
* @param this calling object
* @param message the created message will be stored at this location
* @return
* - SUCCESS
* - OUT_OF_RES
*/
status_t (*build_ike_sa_init_request) (private_initiator_init_t *this, message_t **message);
/**
* Builds the SA payload for this state.
*
@ -137,7 +148,6 @@ struct private_initiator_init_s {
static status_t initiate_connection (private_initiator_init_t *this, char *name, state_t **new_state)
{
message_t *message;
payload_t *payload;
packet_t *packet;
status_t status;
linked_list_iterator_t *proposal_iterator;
@ -183,8 +193,11 @@ static status_t initiate_connection (private_initiator_init_t *this, char *name,
/* not needed anymore */
proposal_iterator->destroy(proposal_iterator);
this ->logger->log(this->logger, CONTROL|MOST, "create diffie hellman object");
this->diffie_hellman = diffie_hellman_create(this->dh_group_number);
if (this->diffie_hellman == NULL)
{
this ->logger->log(this->logger, CONTROL|MOST, "create diffie hellman object");
this->diffie_hellman = diffie_hellman_create(this->dh_group_number);
}
if (this->diffie_hellman == NULL)
{
@ -192,6 +205,13 @@ static status_t initiate_connection (private_initiator_init_t *this, char *name,
return FAILED;
}
if (this->sent_nonce.ptr != NULL)
{
this->logger->log(this->logger, ERROR, "Free existing sent nonce!");
allocator_free(this->sent_nonce.ptr);
this->sent_nonce.ptr = NULL;
this->sent_nonce.len = 0;
}
this ->logger->log(this->logger, CONTROL|MOST, "Get pseudo random bytes for nonce");
if (this->ike_sa->randomizer->allocate_pseudo_random_bytes(this->ike_sa->randomizer, NONCE_SIZE, &(this->sent_nonce)) != SUCCESS)
@ -202,12 +222,84 @@ static status_t initiate_connection (private_initiator_init_t *this, char *name,
this ->logger->log(this->logger, RAW|MOST, "Nonce",&(this->sent_nonce));
status = this->build_ike_sa_init_request (this,&message);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: could not build IKE_SA_INIT request message");
return status;
}
/* generate packet */
this ->logger->log(this->logger, CONTROL|MOST, "generate packet from message");
status = message->generate(message, &packet);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: could not generate packet from message");
message->destroy(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);
message->destroy(message);
return status;
}
/* state can now be changed */
this ->logger->log(this->logger, CONTROL|MOST, "Create next state object");
next_state = ike_sa_init_requested_create(this->ike_sa, this->dh_group_number, this->diffie_hellman, 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_requested_t");
return FAILED;
}
if ( this->ike_sa->last_requested_message != NULL)
{
/* destroy message */
this ->logger->log(this->logger, CONTROL|MOST, "Destroy stored last requested message");
this->ike_sa->last_requested_message->destroy(this->ike_sa->last_requested_message);
}
/* message is set after state create */
this ->logger->log(this->logger, CONTROL|MOST, "replace last requested message with current one");
this->ike_sa->last_requested_message = message;
/* message counter can now be increased */
this ->logger->log(this->logger, CONTROL|MOST, "Increate message counter for outgoing messages");
this->ike_sa->message_id_out++;
*new_state = (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,INITIATOR_INIT),mapping_find(ike_sa_state_m,IKE_SA_INIT_REQUESTED) );
this ->logger->log(this->logger, CONTROL|MOST, "Destroy old sate object");
this->destroy_after_state_change(this);
return SUCCESS;
}
/**
* implements private_initiator_init_t.build_ike_sa_init_request
*/
static status_t build_ike_sa_init_request (private_initiator_init_t *this, message_t **request)
{
status_t status;
payload_t *payload;
message_t *message;
/* going to build message */
this ->logger->log(this->logger, CONTROL|MOST, "Going to build message");
status = this->ike_sa->build_message(this->ike_sa, IKE_SA_INIT, TRUE, &message);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not build message");
this->logger->log(this->logger, ERROR, "Could not build empty message");
return status;
}
@ -225,6 +317,7 @@ static status_t initiate_connection (private_initiator_init_t *this, char *name,
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not add SA payload to message");
payload->destroy(payload);
message->destroy(message);
return status;
}
@ -243,6 +336,7 @@ static status_t initiate_connection (private_initiator_init_t *this, char *name,
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not add KE payload to message");
payload->destroy(payload);
message->destroy(message);
return status;
}
@ -261,61 +355,12 @@ static status_t initiate_connection (private_initiator_init_t *this, char *name,
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Could not add nonce payload to message");
message->destroy(message);
return status;
}
/* generate packet */
this ->logger->log(this->logger, CONTROL|MOST, "generate packet from message");
status = message->generate(message, &packet);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Fatal error: could not generate packet from message");
payload->destroy(payload);
message->destroy(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");
message->destroy(message);
return status;
}
if ( this->ike_sa->last_requested_message != NULL)
{
/* destroy message */
this ->logger->log(this->logger, CONTROL|MOST, "Destroy stored last requested message");
this->ike_sa->last_requested_message->destroy(this->ike_sa->last_requested_message);
}
this ->logger->log(this->logger, CONTROL|MOST, "replace last requested message with current one");
this->ike_sa->last_requested_message = message;
/* message counter can now be increased */
this ->logger->log(this->logger, CONTROL|MOST, "Increate message counter for outgoing messages");
this->ike_sa->message_id_out++;
/* state can now be changed */
this ->logger->log(this->logger, CONTROL|MOST, "Create next state object");
next_state = ike_sa_init_requested_create(this->ike_sa, this->dh_group_number, this->diffie_hellman, 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_requested_t");
return FAILED;
}
*new_state = (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,INITIATOR_INIT),mapping_find(ike_sa_state_m,IKE_SA_INIT_REQUESTED) );
this ->logger->log(this->logger, CONTROL|MOST, "Destroy old sate object");
this->destroy_after_state_change(this);
*request = message;
return SUCCESS;
}
@ -501,6 +546,11 @@ static status_t destroy(private_initiator_init_t *this)
this->logger->log(this->logger, CONTROL | MOST, "Destroy diffie_hellman_t object");
this->diffie_hellman->destroy(this->diffie_hellman);
}
if (this->sent_nonce.ptr != NULL)
{
this->logger->log(this->logger, CONTROL | MOST, "Free memory of sent nonce");
allocator_free(this->sent_nonce.ptr);
}
allocator_free(this);
return SUCCESS;
@ -548,6 +598,7 @@ initiator_init_t *initiator_init_create(protected_ike_sa_t *ike_sa)
/* private functions */
this->destroy_after_state_change = destroy_after_state_change;
this->build_ike_sa_init_request = build_ike_sa_init_request;
this->build_nonce_payload = build_nonce_payload;
this->build_sa_payload = build_sa_payload;
this->build_ke_payload = build_ke_payload;