diff options
Diffstat (limited to 'Source/charon/sa')
-rw-r--r-- | Source/charon/sa/ike_sa.c | 37 | ||||
-rw-r--r-- | Source/charon/sa/ike_sa.h | 17 | ||||
-rw-r--r-- | Source/charon/sa/states/ike_sa_init_requested.c | 83 |
3 files changed, 129 insertions, 8 deletions
diff --git a/Source/charon/sa/ike_sa.c b/Source/charon/sa/ike_sa.c index 7d6fcef20..60e608678 100644 --- a/Source/charon/sa/ike_sa.c +++ b/Source/charon/sa/ike_sa.c @@ -374,6 +374,15 @@ static void compute_secrets(private_ike_sa_t *this,chunk_t dh_shared_secret,chun prf_plus->allocate_bytes(prf_plus,this->prf->get_block_size(this->prf),&(this->secrets.d_key)); this->logger->log_chunk(this->logger, PRIVATE, "Sk_d secret", &(this->secrets.d_key)); + prf_plus->allocate_bytes(prf_plus,this->signer_initiator->get_key_size(this->signer_initiator),&(this->secrets.ai_key)); + this->logger->log_chunk(this->logger, PRIVATE, "Sk_ai secret", &(this->secrets.ai_key)); + this->signer_initiator->set_key(this->signer_initiator,this->secrets.ai_key); + + prf_plus->allocate_bytes(prf_plus,this->signer_responder->get_key_size(this->signer_responder),&(this->secrets.ar_key)); + this->logger->log_chunk(this->logger, PRIVATE, "Sk_ar secret", &(this->secrets.ar_key)); + this->signer_responder->set_key(this->signer_responder,this->secrets.ar_key); + + prf_plus->allocate_bytes(prf_plus,this->crypter_initiator->get_block_size(this->crypter_initiator),&(this->secrets.ei_key)); this->logger->log_chunk(this->logger, PRIVATE, "Sk_ei secret", &(this->secrets.ei_key)); this->crypter_initiator->set_key(this->crypter_initiator,this->secrets.ei_key); @@ -382,14 +391,6 @@ static void compute_secrets(private_ike_sa_t *this,chunk_t dh_shared_secret,chun this->logger->log_chunk(this->logger, PRIVATE, "Sk_er secret", &(this->secrets.er_key)); this->crypter_responder->set_key(this->crypter_responder,this->secrets.er_key); - prf_plus->allocate_bytes(prf_plus,this->signer_initiator->get_block_size(this->signer_initiator),&(this->secrets.ai_key)); - this->logger->log_chunk(this->logger, PRIVATE, "Sk_ai secret", &(this->secrets.ai_key)); - this->signer_initiator->set_key(this->signer_initiator,this->secrets.ai_key); - - prf_plus->allocate_bytes(prf_plus,this->signer_responder->get_block_size(this->signer_responder),&(this->secrets.ar_key)); - this->logger->log_chunk(this->logger, PRIVATE, "Sk_ar secret", &(this->secrets.ar_key)); - this->signer_responder->set_key(this->signer_responder,this->secrets.ar_key); - prf_plus->allocate_bytes(prf_plus,this->crypter_responder->get_block_size(this->crypter_responder),&(this->secrets.pi_key)); this->logger->log_chunk(this->logger, PRIVATE, "Sk_pi secret", &(this->secrets.pi_key)); @@ -601,6 +602,22 @@ static randomizer_t *get_randomizer (private_ike_sa_t *this) } /** + * Implementation of protected_ike_sa_t.get_crypter_initiator. + */ +static crypter_t *get_crypter_initiator (private_ike_sa_t *this) +{ + return this->crypter_initiator; +} + +/** + * Implementation of protected_ike_sa_t.get_signer_initiator. + */ +static signer_t *get_signer_initiator (private_ike_sa_t *this) +{ + return this->signer_initiator; +} + +/** * Implementation of protected_ike_sa_t.set_last_requested_message. */ static status_t set_last_requested_message (private_ike_sa_t *this,message_t * message) @@ -769,12 +786,16 @@ ike_sa_t * ike_sa_create(ike_sa_id_t *ike_sa_id) this->protected.set_last_responded_message = (status_t (*) (protected_ike_sa_t *,message_t *)) set_last_responded_message; this->protected.create_transforms_from_proposal = (status_t (*) (protected_ike_sa_t *,proposal_substructure_t *)) create_transforms_from_proposal; this->protected.set_new_state = (void (*) (protected_ike_sa_t *,state_t *)) set_new_state; + this->protected.get_crypter_initiator = (crypter_t *(*) (protected_ike_sa_t *)) get_crypter_initiator; + this->protected.get_signer_initiator = (signer_t *(*) (protected_ike_sa_t *)) get_signer_initiator; /* private functions */ this->resend_last_reply = resend_last_reply; this->create_delete_job = create_delete_job; + + /* initialize private fields */ this->logger = charon->logger_manager->create_logger(charon->logger_manager, IKE_SA, NULL); diff --git a/Source/charon/sa/ike_sa.h b/Source/charon/sa/ike_sa.h index b4abfa48c..51d8be4e0 100644 --- a/Source/charon/sa/ike_sa.h +++ b/Source/charon/sa/ike_sa.h @@ -230,6 +230,23 @@ struct protected_ike_sa_t { * @param state pointer to the new state_t object */ void (*set_new_state) (protected_ike_sa_t *this,state_t *state); + + /** + * Gets the internal stored initiator crypter_t object. + * + * @param this calling object + * @return pointer to crypter_t object + */ + crypter_t *(*get_crypter_initiator) (protected_ike_sa_t *this); + + /** + * Gets the internal stored initiator signer object. + * + * @param this calling object + * @return pointer to signer_t object + */ + signer_t *(*get_signer_initiator) (protected_ike_sa_t *this); + }; diff --git a/Source/charon/sa/states/ike_sa_init_requested.c b/Source/charon/sa/states/ike_sa_init_requested.c index c039e733a..0663f0a5e 100644 --- a/Source/charon/sa/states/ike_sa_init_requested.c +++ b/Source/charon/sa/states/ike_sa_init_requested.c @@ -27,6 +27,7 @@ #include <encoding/payloads/sa_payload.h> #include <encoding/payloads/ke_payload.h> #include <encoding/payloads/nonce_payload.h> +#include <encoding/payloads/id_payload.h> #include <transforms/diffie_hellman.h> @@ -80,6 +81,24 @@ struct private_ike_sa_init_requested_t { * Is logger of ike_sa! */ logger_t *logger; + + /** + * Builds the IKE_SA_AUTH request message. + * + * @param this calling object + * @param message the created message will be stored at this location + */ + void (*build_ike_auth_request) (private_ike_sa_init_requested_t *this, message_t **message); + + /** + * Builds the id payload for this state. + * + * @param this calling object + * @param payload The generated payload object of type id_payload_t is + * stored at this location. + */ + void (*build_id_payload) (private_ike_sa_init_requested_t *this, payload_t **payload); + }; /** @@ -90,6 +109,8 @@ static status_t process_message(private_ike_sa_init_requested_t *this, message_t status_t status; iterator_t *payloads; exchange_type_t exchange_type; + message_t *request; + packet_t *packet; u_int64_t responder_spi; ike_sa_id_t *ike_sa_id; @@ -227,6 +248,25 @@ static status_t process_message(private_ike_sa_init_requested_t *this, message_t this->ike_sa->compute_secrets(this->ike_sa,this->shared_secret,this->sent_nonce, this->received_nonce); + this->build_ike_auth_request (this,&request); + + /* generate packet */ + this->logger->log(this->logger, CONTROL|MOST, "generate packet from message"); + + status = request->generate(request, this->ike_sa->get_crypter_initiator(this->ike_sa), this->ike_sa->get_signer_initiator(this->ike_sa), &packet); + if (status != SUCCESS) + { + this->logger->log(this->logger, 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"); + charon->send_queue->add(charon->send_queue, packet); + + + request->destroy(request); + /**************************** * * TODO @@ -252,6 +292,45 @@ static status_t process_message(private_ike_sa_init_requested_t *this, message_t } /** + * implements private_ike_sa_init_requested_t.build_ike_auth_request + */ +static void build_ike_auth_request (private_ike_sa_init_requested_t *this, message_t **request) +{ + payload_t *payload; + message_t *message; + + /* going to build message */ + this->logger->log(this->logger, CONTROL|MOST, "Going to build empty message"); + this->ike_sa->build_message(this->ike_sa, IKE_AUTH, TRUE, &message); + + + /* build id payload */ + this->build_id_payload(this, &payload); + this->logger->log(this->logger, CONTROL|MOST, "add id payload to message"); + message->add_payload(message, payload); + + *request = message; +} + +static void build_id_payload (private_ike_sa_init_requested_t *this, payload_t **payload) +{ + id_payload_t *id_payload; + chunk_t email; + + /* create IDi */ + id_payload = id_payload_create(TRUE); + /* TODO special functions on id payload */ + /* TODO configuration manager request */ + id_payload->set_id_type(id_payload,ID_RFC822_ADDR); + email.ptr = "moerdi@hsr.ch"; + email.len = strlen(email.ptr); + this->logger->log_chunk(this->logger, CONTROL, "Moerdi",&email); + id_payload->set_data(id_payload,email); + + *payload = (payload_t *) id_payload; +} + +/** * Implements state_t.get_state */ static ike_sa_state_t get_state(private_ike_sa_init_requested_t *this) @@ -287,6 +366,10 @@ ike_sa_init_requested_t *ike_sa_init_requested_create(protected_ike_sa_t *ike_sa this->public.state_interface.get_state = (ike_sa_state_t (*) (state_t *)) get_state; this->public.state_interface.destroy = (void (*) (state_t *)) destroy; + /* private functions */ + this->build_ike_auth_request = build_ike_auth_request; + this->build_id_payload = build_id_payload; + /* private data */ this->ike_sa = ike_sa; this->received_nonce = CHUNK_INITIALIZER; |