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-rw-r--r--Source/charon/sa/states/ike_auth_requested.c671
1 files changed, 0 insertions, 671 deletions
diff --git a/Source/charon/sa/states/ike_auth_requested.c b/Source/charon/sa/states/ike_auth_requested.c
deleted file mode 100644
index 3d49f440f..000000000
--- a/Source/charon/sa/states/ike_auth_requested.c
+++ /dev/null
@@ -1,671 +0,0 @@
-/**
- * @file ike_auth_requested.c
- *
- * @brief Implementation of ike_auth_requested_t.
- *
- */
-
-/*
- * Copyright (C) 2005 Jan Hutter, Martin Willi
- * Hochschule fuer Technik Rapperswil
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- */
-
-#include <string.h>
-
-#include "ike_auth_requested.h"
-
-#include <daemon.h>
-#include <encoding/payloads/ts_payload.h>
-#include <encoding/payloads/sa_payload.h>
-#include <encoding/payloads/id_payload.h>
-#include <encoding/payloads/auth_payload.h>
-#include <encoding/payloads/notify_payload.h>
-#include <crypto/signers/signer.h>
-#include <crypto/crypters/crypter.h>
-#include <sa/states/ike_sa_established.h>
-#include <sa/authenticator.h>
-#include <sa/child_sa.h>
-
-typedef struct private_ike_auth_requested_t private_ike_auth_requested_t;
-
-/**
- * Private data of a ike_auth_requested_t object.
- *
- */
-struct private_ike_auth_requested_t {
- /**
- * Public interface of ike_auth_requested_t.
- */
- ike_auth_requested_t public;
-
- /**
- * Assigned IKE_SA.
- */
- protected_ike_sa_t *ike_sa;
-
- /**
- * SA config, just a copy of the one stored in the ike_sa.
- */
- policy_t *policy;
-
- /**
- * Received nonce from responder.
- */
- chunk_t received_nonce;
-
- /**
- * Sent nonce in IKE_SA_INIT request.
- */
- chunk_t sent_nonce;
-
- /**
- * IKE_SA_INIT-Request in binary form.
- */
- chunk_t ike_sa_init_reply_data;
-
- /**
- * Proposal to setup CHILD_SA
- */
- proposal_t *proposal;
-
- /**
- * Traffic selectors applicable at our site
- */
- linked_list_t *my_ts;
-
- /**
- * Traffic selectors applicable at remote site
- */
- linked_list_t *other_ts;
-
- /**
- * Child sa created in ike_sa_init_requested
- */
- child_sa_t *child_sa;
-
- /**
- * Assigned Logger.
- *
- * Is logger of ike_sa!
- */
- logger_t *logger;
-
- /**
- * Process the IDr payload (check if other id is valid)
- *
- * @param this calling object
- * @param idr_payload ID payload of responder
- * @return
- * - SUCCESS
- * - DELETE_ME
- */
- status_t (*process_idr_payload) (private_ike_auth_requested_t *this, id_payload_t *idr_payload);
-
- /**
- * Process the SA payload (check if selected proposals are valid, setup child sa)
- *
- * @param this calling object
- * @param sa_payload SA payload of responder
- *
- * - SUCCESS
- * - DELETE_ME
- */
- status_t (*process_sa_payload) (private_ike_auth_requested_t *this, sa_payload_t *sa_payload);
-
- /**
- * Process the AUTH payload (check authenticity of message)
- *
- * @param this calling object
- * @param auth_payload AUTH payload of responder
- * @param other_id_payload ID payload of responder
- *
- * - SUCCESS
- * - DELETE_ME
- */
- status_t (*process_auth_payload) (private_ike_auth_requested_t *this, auth_payload_t *auth_payload, id_payload_t *other_id_payload);
-
- /**
- * Process the TS payload (check if selected traffic selectors are valid)
- *
- * @param this calling object
- * @param ts_initiator TRUE if TS payload is TSi, FALSE for TSr
- * @param ts_payload TS payload of responder
- *
- * - SUCCESS
- * - DELETE_ME
- */
- status_t (*process_ts_payload) (private_ike_auth_requested_t *this, bool ts_initiator, ts_payload_t *ts_payload);
-
- /**
- * Process a notify payload
- *
- * @param this calling object
- * @param notify_payload notify payload
- *
- * - SUCCESS
- * - FAILED
- * - DELETE_ME
- */
- status_t (*process_notify_payload) (private_ike_auth_requested_t *this, notify_payload_t *notify_payload);
-
- /**
- * Destroy function called internally of this class after state change to
- * state IKE_SA_ESTABLISHED succeeded.
- *
- * This destroy function does not destroy objects which were passed to the new state.
- *
- * @param this calling object
- */
- void (*destroy_after_state_change) (private_ike_auth_requested_t *this);
-};
-
-
-/**
- * Implements state_t.process_message
- */
-static status_t process_message(private_ike_auth_requested_t *this, message_t *ike_auth_reply)
-{
- ts_payload_t *tsi_payload = NULL, *tsr_payload = NULL;
- id_payload_t *idr_payload = NULL;
- auth_payload_t *auth_payload = NULL;
- sa_payload_t *sa_payload = NULL;
- iterator_t *payloads = NULL;
- crypter_t *crypter = NULL;
- signer_t *signer = NULL;
- status_t status;
- host_t *my_host, *other_host;
- chunk_t seed;
- prf_plus_t *prf_plus;
- connection_t *connection;
-
- if (ike_auth_reply->get_exchange_type(ike_auth_reply) != IKE_AUTH)
- {
- this->logger->log(this->logger, ERROR | LEVEL1, "Message of type %s not supported in state ike_auth_requested",
- mapping_find(exchange_type_m,ike_auth_reply->get_exchange_type(ike_auth_reply)));
- return FAILED;
- }
-
- if (ike_auth_reply->get_request(ike_auth_reply))
- {
- this->logger->log(this->logger, ERROR | LEVEL1, "IKE_AUTH requests not allowed state ike_sa_init_responded");
- return FAILED;
- }
-
- /* get signer for verification and crypter for decryption */
- signer = this->ike_sa->get_signer_responder(this->ike_sa);
- crypter = this->ike_sa->get_crypter_responder(this->ike_sa);
-
- /* parse incoming message */
- status = ike_auth_reply->parse_body(ike_auth_reply, crypter, signer);
- if (status != SUCCESS)
- {
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply decryption failed. Ignoring message");
- return status;
- }
-
- this->policy = this->ike_sa->get_policy(this->ike_sa);
-
- /* we collect all payloads, which are processed later. Notify's are processed
- * in place, since we don't know how may are there.
- */
- payloads = ike_auth_reply->get_payload_iterator(ike_auth_reply);
- while (payloads->has_next(payloads))
- {
- payload_t *payload;
- payloads->current(payloads, (void**)&payload);
-
- switch (payload->get_type(payload))
- {
- case AUTHENTICATION:
- {
- auth_payload = (auth_payload_t*)payload;
- break;
- }
- case ID_RESPONDER:
- {
- idr_payload = (id_payload_t*)payload;
- break;
- }
- case SECURITY_ASSOCIATION:
- {
- sa_payload = (sa_payload_t*)payload;
- break;
- }
- case TRAFFIC_SELECTOR_INITIATOR:
- {
- tsi_payload = (ts_payload_t*)payload;
- break;
- }
- case TRAFFIC_SELECTOR_RESPONDER:
- {
- tsr_payload = (ts_payload_t*)payload;
- break;
- }
- case NOTIFY:
- {
- notify_payload_t *notify_payload = (notify_payload_t *) payload;
- /* handle the notify directly, abort if no further processing required */
- status = this->process_notify_payload(this, notify_payload);
- if (status != SUCCESS)
- {
- payloads->destroy(payloads);
- return status;
- }
- }
- case CERTIFICATE:
- {
- /* TODO handle cert payloads */
- }
- default:
- {
- this->logger->log(this->logger, ERROR|LEVEL1, "Ignoring Payload %s (%d)",
- mapping_find(payload_type_m, payload->get_type(payload)), payload->get_type(payload));
- break;
- }
- }
- }
- /* iterator can be destroyed */
- payloads->destroy(payloads);
-
- /* check if we have all payloads */
- if (!(idr_payload && sa_payload && auth_payload && tsi_payload && tsr_payload))
- {
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply did not contain all required payloads. Deleting IKE_SA");
- return DELETE_ME;
- }
-
- /* process all payloads */
- status = this->process_idr_payload(this, idr_payload);
- if (status != SUCCESS)
- {
- return status;
- }
- status = this->process_auth_payload(this, auth_payload,idr_payload);
- if (status != SUCCESS)
- {
- return status;
- }
- status = this->process_sa_payload(this, sa_payload);
- if (status != SUCCESS)
- {
- return status;
- }
- status = this->process_ts_payload(this, TRUE, tsi_payload);
- if (status != SUCCESS)
- {
- return status;
- }
- status = this->process_ts_payload(this, FALSE, tsr_payload);
- if (status != SUCCESS)
- {
- return status;
- }
-
- /* install child SAs for AH and esp */
- if (!this->child_sa)
- {
- this->logger->log(this->logger, CONTROL, "No CHILD_SA requested, no CHILD_SA built");
- }
- if (!this->proposal)
- {
- this->logger->log(this->logger, CONTROL, "Proposal negotiation failed, no CHILD_SA built");
- this->child_sa->destroy(this->child_sa);
- this->child_sa = NULL;
- }
- else if (this->my_ts->get_count(this->my_ts) == 0 || this->other_ts->get_count(this->other_ts) == 0)
- {
- this->logger->log(this->logger, CONTROL, "Traffic selector negotiation failed, no CHILD_SA built");
- this->child_sa->destroy(this->child_sa);
- this->child_sa = NULL;
- }
- else
- {
- seed = chunk_alloc(this->sent_nonce.len + this->received_nonce.len);
- memcpy(seed.ptr, this->sent_nonce.ptr, this->sent_nonce.len);
- memcpy(seed.ptr + this->sent_nonce.len, this->received_nonce.ptr, this->received_nonce.len);
- prf_plus = prf_plus_create(this->ike_sa->get_child_prf(this->ike_sa), seed);
- chunk_free(&seed);
-
- status = this->child_sa->update(this->child_sa, this->proposal, prf_plus);
- prf_plus->destroy(prf_plus);
- if (status != SUCCESS)
- {
- this->logger->log(this->logger, AUDIT, "Could not install CHILD_SA! Deleting IKE_SA");
- return DELETE_ME;
- }
- status = this->child_sa->add_policies(this->child_sa, this->my_ts, this->other_ts);
- if (status != SUCCESS)
- {
- this->logger->log(this->logger, AUDIT, "Could not install CHILD_SA policy! Deleting IKE_SA");
- return DELETE_ME;
- }
- this->ike_sa->add_child_sa(this->ike_sa, this->child_sa);
- }
-
- this->ike_sa->set_last_replied_message_id(this->ike_sa,ike_auth_reply->get_message_id(ike_auth_reply));
-
- /* create new state */
- this->ike_sa->set_new_state(this->ike_sa, (state_t*)ike_sa_established_create(this->ike_sa));
- this->destroy_after_state_change(this);
-
- connection = this->ike_sa->get_connection(this->ike_sa);
- my_host = connection->get_my_host(connection);
- other_host = connection->get_other_host(connection);
- this->logger->log(this->logger, AUDIT, "IKE_SA established between %s - %s",
- my_host->get_address(my_host), other_host->get_address(other_host));
-
- return SUCCESS;
-}
-
-/**
- * Implements private_ike_auth_requested_t.process_idr_payload
- */
-static status_t process_idr_payload(private_ike_auth_requested_t *this, id_payload_t *idr_payload)
-{
- identification_t *other_id, *configured_other_id;
- connection_t *connection;
-
- other_id = idr_payload->get_identification(idr_payload);
- configured_other_id = this->policy->get_other_id(this->policy);
-
- this->logger->log(this->logger, CONTROL|LEVEL1, "configured ID: %s, ID of responder: %s",
- configured_other_id->get_string(configured_other_id),
- other_id->get_string(other_id));
-
- if (!other_id->belongs_to(other_id, configured_other_id))
- {
- other_id->destroy(other_id);
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply contained a not acceptable ID. Deleting IKE_SA");
- return DELETE_ME;
- }
-
- connection = this->ike_sa->get_connection(this->ike_sa);
- connection->update_other_id(connection, other_id->clone(other_id));
-
- this->policy->update_other_id(this->policy, other_id);
- return SUCCESS;
-}
-
-/**
- * Implements private_ike_auth_requested_t.process_sa_payload
- */
-static status_t process_sa_payload(private_ike_auth_requested_t *this, sa_payload_t *sa_payload)
-{
- proposal_t *proposal, *proposal_tmp;
- linked_list_t *proposal_list;
-
- /* get his selected proposal */
- proposal_list = sa_payload->get_proposals(sa_payload);
- /* check count of proposals */
- if (proposal_list->get_count(proposal_list) == 0)
- {
- /* no proposal? we accept this, but no child sa is built */
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply's SA_PAYLOAD didn't contain any proposals. No CHILD_SA created",
- proposal_list->get_count(proposal_list));
- proposal_list->destroy(proposal_list);
- return SUCCESS;
- }
- if (proposal_list->get_count(proposal_list) > 1)
- {
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply's SA_PAYLOAD contained %d proposal. Deleting IKE_SA",
- proposal_list->get_count(proposal_list));
- while (proposal_list->remove_last(proposal_list, (void**)&proposal) == SUCCESS)
- {
- proposal->destroy(proposal);
- }
- proposal_list->destroy(proposal_list);
- return DELETE_ME;
- }
-
- /* we have to re-check here if other's selection is valid */
- proposal = this->policy->select_proposal(this->policy, proposal_list);
- /* list not needed anymore */
- while (proposal_list->remove_last(proposal_list, (void**)&proposal_tmp) == SUCCESS)
- {
- proposal_tmp->destroy(proposal_tmp);
- }
- proposal_list->destroy(proposal_list);
- /* got a match? */
- if (proposal == NULL)
- {
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply contained a not offered proposal. Deleting IKE_SA");
- return DELETE_ME;
- }
-
- /* apply proposal */
- this->proposal = proposal;
-
- return SUCCESS;
-}
-
-/**
- * Implements private_ike_auth_requested_t.process_auth_payload
- */
-static status_t process_auth_payload(private_ike_auth_requested_t *this, auth_payload_t *auth_payload, id_payload_t *other_id_payload)
-{
- authenticator_t *authenticator;
- status_t status;
-
- authenticator = authenticator_create(this->ike_sa);
- status = authenticator->verify_auth_data(authenticator,auth_payload,this->ike_sa_init_reply_data,this->sent_nonce,other_id_payload,FALSE);
- authenticator->destroy(authenticator);
- if (status != SUCCESS)
- {
- this->logger->log(this->logger, AUDIT, "Verification of IKE_AUTH reply failed. Deleting IKE_SA");
- return DELETE_ME;
- }
-
- this->logger->log(this->logger, CONTROL|LEVEL1, "AUTH data verified successfully");
- return SUCCESS;
-}
-
-/**
- * Implements private_ike_auth_requested_t.process_ts_payload
- */
-static status_t process_ts_payload(private_ike_auth_requested_t *this, bool ts_initiator, ts_payload_t *ts_payload)
-{
- linked_list_t *ts_received, *ts_selected;
- traffic_selector_t *ts;
-
- /* get ts form payload */
- ts_received = ts_payload->get_traffic_selectors(ts_payload);
- /* select ts depending on payload type */
- if (ts_initiator)
- {
- ts_selected = this->policy->select_my_traffic_selectors(this->policy, ts_received);
- this->my_ts = ts_selected;
- }
- else
- {
- ts_selected = this->policy->select_other_traffic_selectors(this->policy, ts_received);
- this->other_ts = ts_selected;
- }
- /* check if the responder selected valid proposals */
- if (ts_selected->get_count(ts_selected) != ts_received->get_count(ts_received))
- {
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply contained not offered traffic selectors.");
- }
-
- /* cleanup */
- while (ts_received->remove_last(ts_received, (void**)&ts) == SUCCESS)
- {
- ts->destroy(ts);
- }
- ts_received->destroy(ts_received);
-
- return SUCCESS;
-}
-
-/**
- * Implements private_ike_auth_requested_t.process_notify_payload
- */
-static status_t process_notify_payload(private_ike_auth_requested_t *this, notify_payload_t *notify_payload)
-{
- notify_message_type_t notify_message_type = notify_payload->get_notify_message_type(notify_payload);
-
- this->logger->log(this->logger, CONTROL|LEVEL1, "Process notify type %s",
- mapping_find(notify_message_type_m, notify_message_type));
-
- switch (notify_message_type)
- {
- case INVALID_SYNTAX:
- {
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply contained an INVALID_SYNTAX notify. Deleting IKE_SA");
- return DELETE_ME;
-
- }
- case AUTHENTICATION_FAILED:
- {
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply contained an AUTHENTICATION_FAILED notify. Deleting IKE_SA");
- return DELETE_ME;
-
- }
- case SINGLE_PAIR_REQUIRED:
- {
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply contained a SINGLE_PAIR_REQUIRED notify. Deleting IKE_SA");
- return DELETE_ME;
- }
- default:
- {
- /*
- * - In case of unknown error: IKE_SA gets destroyed.
- * - In case of unknown status: logging
- */
-
- if (notify_message_type < 16383)
- {
- this->logger->log(this->logger, AUDIT, "IKE_AUTH reply contained an unknown notify error (%d). Deleting IKE_SA",
- notify_message_type);
- return DELETE_ME;
-
- }
- else
- {
- this->logger->log(this->logger, CONTROL, "IKE_AUTH reply contained an unknown notify (%d), ignored.",
- notify_message_type);
- return SUCCESS;
- }
- }
- }
-}
-
-/**
- * Implements state_t.get_state
- */
-static ike_sa_state_t get_state(private_ike_auth_requested_t *this)
-{
- return IKE_AUTH_REQUESTED;
-}
-
-/**
- * Implements state_t.get_state
- */
-static void destroy(private_ike_auth_requested_t *this)
-{
- chunk_free(&(this->received_nonce));
- chunk_free(&(this->sent_nonce));
- chunk_free(&(this->ike_sa_init_reply_data));
- if (this->child_sa)
- {
- this->child_sa->destroy(this->child_sa);
- }
- if (this->my_ts)
- {
- traffic_selector_t *ts;
- while (this->my_ts->remove_last(this->my_ts, (void**)&ts) == SUCCESS)
- {
- ts->destroy(ts);
- }
- this->my_ts->destroy(this->my_ts);
- }
- if (this->other_ts)
- {
- traffic_selector_t *ts;
- while (this->other_ts->remove_last(this->other_ts, (void**)&ts) == SUCCESS)
- {
- ts->destroy(ts);
- }
- this->other_ts->destroy(this->other_ts);
- }
- if (this->proposal)
- {
- this->proposal->destroy(this->proposal);
- }
- free(this);
-}
-/**
- * Implements protected_ike_sa_t.destroy_after_state_change
- */
-static void destroy_after_state_change(private_ike_auth_requested_t *this)
-{
- chunk_free(&(this->received_nonce));
- chunk_free(&(this->sent_nonce));
- chunk_free(&(this->ike_sa_init_reply_data));
- if (this->my_ts)
- {
- traffic_selector_t *ts;
- while (this->my_ts->remove_last(this->my_ts, (void**)&ts) == SUCCESS)
- {
- ts->destroy(ts);
- }
- this->my_ts->destroy(this->my_ts);
- }
- if (this->other_ts)
- {
- traffic_selector_t *ts;
- while (this->other_ts->remove_last(this->other_ts, (void**)&ts) == SUCCESS)
- {
- ts->destroy(ts);
- }
- this->other_ts->destroy(this->other_ts);
- }
- if (this->proposal)
- {
- this->proposal->destroy(this->proposal);
- }
- free(this);
-}
-
-/*
- * Described in header.
- */
-ike_auth_requested_t *ike_auth_requested_create(protected_ike_sa_t *ike_sa,chunk_t sent_nonce,chunk_t received_nonce,chunk_t ike_sa_init_reply_data, child_sa_t *child_sa)
-{
- private_ike_auth_requested_t *this = malloc_thing(private_ike_auth_requested_t);
-
- /* 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 = (void (*) (state_t *)) destroy;
-
- /* private functions */
- this->process_idr_payload = process_idr_payload;
- this->process_sa_payload = process_sa_payload;
- this->process_auth_payload = process_auth_payload;
- this->process_ts_payload = process_ts_payload;
- this->process_notify_payload = process_notify_payload;
- this->destroy_after_state_change = destroy_after_state_change;
-
- /* private data */
- this->ike_sa = ike_sa;
- this->received_nonce = received_nonce;
- this->sent_nonce = sent_nonce;
- this->ike_sa_init_reply_data = ike_sa_init_reply_data;
- this->logger = logger_manager->get_logger(logger_manager, IKE_SA);
- this->my_ts = NULL;
- this->other_ts = NULL;
- this->proposal = NULL;
- this->child_sa = child_sa;
-
- return &(this->public);
-}
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