- deleted
This commit is contained in:
Martin Willi
@@ -1,92 +0,0 @@
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/**
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* @file ike_auth_requested.c
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*
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* @brief State of an IKE_SA, which has requested an IKE_AUTH.
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "ike_auth_requested.h"
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#include <utils/allocator.h>
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/**
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* Private data of a ike_auth_requested_t object.
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*
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*/
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typedef struct private_ike_auth_requested_s private_ike_auth_requested_t;
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struct private_ike_auth_requested_s {
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/**
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* methods of the state_t interface
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*/
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ike_auth_requested_t public;
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/**
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* Assigned IKE_SA
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*/
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protected_ike_sa_t *ike_sa;
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};
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/**
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* Implements state_t.get_state
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*/
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static status_t process_message(private_ike_auth_requested_t *this, message_t *message, state_t **new_state)
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{
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*new_state = (state_t *) this;
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return SUCCESS;
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}
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/**
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* Implements state_t.get_state
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*/
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static ike_sa_state_t get_state(private_ike_auth_requested_t *this)
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{
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return IKE_AUTH_REQUESTED;
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}
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/**
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* Implements state_t.get_state
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*/
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static status_t destroy(private_ike_auth_requested_t *this)
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{
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allocator_free(this);
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return SUCCESS;
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}
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/*
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* Described in header.
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*/
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ike_auth_requested_t *ike_auth_requested_create(protected_ike_sa_t *ike_sa)
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{
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private_ike_auth_requested_t *this = allocator_alloc_thing(private_ike_auth_requested_t);
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if (this == NULL)
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{
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return NULL;
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}
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/* interface functions */
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this->public.state_interface.process_message = (status_t (*) (state_t *,message_t *,state_t **)) process_message;
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this->public.state_interface.get_state = (ike_sa_state_t (*) (state_t *)) get_state;
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this->public.state_interface.destroy = (status_t (*) (state_t *)) destroy;
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/* private data */
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this->ike_sa = ike_sa;
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return &(this->public);
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}
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@@ -1,50 +0,0 @@
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/**
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* @file ike_auth_requested.h
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*
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* @brief State of an IKE_SA, which has requested an IKE_AUTH.
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#ifndef IKE_AUTH_REQUESTED_H_
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#define IKE_AUTH_REQUESTED_H_
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#include <states/state.h>
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#include <ike_sa.h>
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/**
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* @brief This class represents an IKE_SA, which has requested an IKE_AUTH.
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*
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*/
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typedef struct ike_auth_requested_s ike_auth_requested_t;
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struct ike_auth_requested_s {
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/**
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* methods of the state_t interface
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*/
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state_t state_interface;
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};
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/**
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* Constructor of class ike_auth_requested_t
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*
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* @param ike_sa assigned ike_sa object
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*/
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ike_auth_requested_t *ike_auth_requested_create(protected_ike_sa_t *ike_sa);
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#endif /*IKE_AUTH_REQUESTED_H_*/
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@@ -1,92 +0,0 @@
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/**
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* @file ike_sa_established.c
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*
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* @brief State of an established IKE_SA.
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "ike_sa_established.h"
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#include <utils/allocator.h>
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/**
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* Private data of a ike_sa_established_t object.
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*
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*/
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typedef struct private_ike_sa_established_s private_ike_sa_established_t;
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struct private_ike_sa_established_s {
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/**
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* methods of the state_t interface
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*/
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ike_sa_established_t public;
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/**
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* Assigned IKE_SA
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*/
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protected_ike_sa_t *ike_sa;
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};
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/**
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* Implements state_t.get_state
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*/
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static status_t process_message(private_ike_sa_established_t *this, message_t *message, state_t **new_state)
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{
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*new_state = (state_t *) this;
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return SUCCESS;
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}
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/**
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* Implements state_t.get_state
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*/
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static ike_sa_state_t get_state(private_ike_sa_established_t *this)
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{
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return IKE_SA_ESTABLISHED;
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}
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/**
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* Implements state_t.get_state
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*/
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static status_t destroy(private_ike_sa_established_t *this)
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{
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allocator_free(this);
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return SUCCESS;
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}
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/*
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* Described in header.
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*/
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ike_sa_established_t *ike_sa_established_create(protected_ike_sa_t *ike_sa)
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{
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private_ike_sa_established_t *this = allocator_alloc_thing(private_ike_sa_established_t);
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if (this == NULL)
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{
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return NULL;
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}
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/* interface functions */
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this->public.state_interface.process_message = (status_t (*) (state_t *,message_t *,state_t **)) process_message;
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this->public.state_interface.get_state = (ike_sa_state_t (*) (state_t *)) get_state;
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this->public.state_interface.destroy = (status_t (*) (state_t *)) destroy;
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/* private data */
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this->ike_sa = ike_sa;
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return &(this->public);
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}
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@@ -1,51 +0,0 @@
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/**
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* @file ike_sa_established.h
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*
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* @brief State of an established IKE_SA.
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#ifndef IKE_SA_ESTABLISHED_H_
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#define IKE_SA_ESTABLISHED_H_
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#include <states/state.h>
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#include <ike_sa.h>
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/**
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* @brief This class represents an the state of an established
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* IKE_SA.
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*
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*/
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typedef struct ike_sa_established_s ike_sa_established_t;
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struct ike_sa_established_s {
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/**
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* methods of the state_t interface
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*/
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state_t state_interface;
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};
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/**
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* Constructor of class ike_sa_established_t
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*
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* @param ike_sa assigned ike_sa
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*/
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ike_sa_established_t *ike_sa_established_create(protected_ike_sa_t *ike_sa);
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#endif /*IKE_SA_ESTABLISHED_H_*/
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@@ -1,342 +0,0 @@
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/**
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* @file ike_sa_init_requested.c
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*
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* @brief State of a IKE_SA after requesting an IKE_SA_INIT
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
|
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
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*/
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#include "ike_sa_init_requested.h"
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#include <globals.h>
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#include <utils/allocator.h>
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#include <encoding/payloads/sa_payload.h>
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#include <encoding/payloads/ke_payload.h>
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#include <encoding/payloads/nonce_payload.h>
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#include <transforms/diffie_hellman.h>
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/**
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* Private data of a ike_sa_init_requested_t object.
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*
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*/
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typedef struct private_ike_sa_init_requested_s private_ike_sa_init_requested_t;
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struct private_ike_sa_init_requested_s {
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/**
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* methods of the state_t interface
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*/
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ike_sa_init_requested_t public;
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/**
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* Assigned IKE_SA
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*/
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protected_ike_sa_t *ike_sa;
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/**
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* Diffie Hellman object used to compute shared secret
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*/
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diffie_hellman_t *diffie_hellman;
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/**
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* Shared secret of successful exchange
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*/
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chunk_t shared_secret;
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/**
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* Sent nonce value
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*/
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chunk_t sent_nonce;
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/**
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* Received nonce
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*/
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chunk_t received_nonce;
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/**
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* DH group priority used to get dh_group_number from configuration manager.
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*
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* Currently uused but usable if informational messages of unsupported dh group number are processed.
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*/
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u_int16_t dh_group_priority;
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/**
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* Logger used to log data
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*
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* Is logger of ike_sa!
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*/
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logger_t *logger;
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};
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/**
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* Implements state_t.get_state
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*/
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static status_t process_message(private_ike_sa_init_requested_t *this, message_t *message, state_t **new_state)
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{
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status_t status;
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linked_list_iterator_t *payloads;
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exchange_type_t exchange_type;
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u_int64_t responder_spi;
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exchange_type = message->get_exchange_type(message);
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if (exchange_type != IKE_SA_INIT)
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{
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this->logger->log(this->logger, ERROR | MORE, "Message of type %s not supported in state ike_sa_init_requested",mapping_find(exchange_type_m,exchange_type));
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return FAILED;
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}
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if (message->get_request(message))
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{
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this->logger->log(this->logger, ERROR | MORE, "Only responses of type IKE_SA_INIT supported in state ike_sa_init_requested");
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return FAILED;
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}
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/* parse incoming message */
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status = message->parse_body(message);
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if (status != SUCCESS)
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{
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this->logger->log(this->logger, ERROR | MORE, "Could not parse body");
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return status;
|
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}
|
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responder_spi = message->get_responder_spi(message);
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this->ike_sa->ike_sa_id->set_responder_spi(this->ike_sa->ike_sa_id,responder_spi);
|
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|
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/* iterate over incoming payloads */
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status = message->get_payload_iterator(message, &payloads);
|
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if (status != SUCCESS)
|
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{
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this->logger->log(this->logger, ERROR, "Could not create payload interator");
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return status;
|
||||
}
|
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while (payloads->has_next(payloads))
|
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{
|
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payload_t *payload;
|
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payloads->current(payloads, (void**)&payload);
|
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|
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this->logger->log(this->logger, CONTROL|MORE, "Processing payload %s", mapping_find(payload_type_m, payload->get_type(payload)));
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switch (payload->get_type(payload))
|
||||
{
|
||||
case SECURITY_ASSOCIATION:
|
||||
{
|
||||
sa_payload_t *sa_payload = (sa_payload_t*)payload;
|
||||
linked_list_iterator_t *suggested_proposals;
|
||||
encryption_algorithm_t encryption_algorithm = ENCR_UNDEFINED;
|
||||
pseudo_random_function_t pseudo_random_function = PRF_UNDEFINED;
|
||||
integrity_algorithm_t integrity_algorithm = AUTH_UNDEFINED;
|
||||
|
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/* 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 errror: Could not create iterator on suggested proposals");
|
||||
payloads->destroy(payloads);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* now let the configuration-manager return the transforms for the given proposal*/
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Get transforms for suggested proposal");
|
||||
status = global_configuration_manager->get_transforms_for_host_and_proposals(global_configuration_manager,
|
||||
this->ike_sa->other.host, suggested_proposals, &encryption_algorithm,&pseudo_random_function,&integrity_algorithm);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "Suggested proposals not supported!");
|
||||
suggested_proposals->destroy(suggested_proposals);
|
||||
payloads->destroy(payloads);
|
||||
return status;
|
||||
}
|
||||
suggested_proposals->destroy(suggested_proposals);
|
||||
|
||||
this->ike_sa->prf = prf_create(pseudo_random_function);
|
||||
if (this->ike_sa->prf == NULL)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "PRF type not supported");
|
||||
payloads->destroy(payloads);
|
||||
return FAILED;
|
||||
}
|
||||
|
||||
|
||||
/* ok, we have what we need for sa_payload */
|
||||
break;
|
||||
}
|
||||
case KEY_EXCHANGE:
|
||||
{
|
||||
ke_payload_t *ke_payload = (ke_payload_t*)payload;
|
||||
|
||||
status = this->diffie_hellman->set_other_public_value(this->diffie_hellman, ke_payload->get_key_exchange_data(ke_payload));
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not set other public value for DH exchange. Status %s",mapping_find(status_m,status));
|
||||
payloads->destroy(payloads);
|
||||
return OUT_OF_RES;
|
||||
}
|
||||
|
||||
/* shared secret is computed AFTER processing of all payloads... */
|
||||
break;
|
||||
}
|
||||
case NONCE:
|
||||
{
|
||||
nonce_payload_t *nonce_payload = (nonce_payload_t*)payload;
|
||||
|
||||
if (this->received_nonce.ptr != NULL)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Destroy existing received nonce");
|
||||
allocator_free(this->received_nonce.ptr);
|
||||
this->received_nonce.ptr = NULL;
|
||||
this->received_nonce.len = 0;
|
||||
}
|
||||
|
||||
status = nonce_payload->get_nonce(nonce_payload, &(this->received_nonce));
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Fatal error: Could not get received nonce");
|
||||
payloads->destroy(payloads);
|
||||
return OUT_OF_RES;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
default:
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Fatal errror: Payload type not supported!!!!");
|
||||
payloads->destroy(payloads);
|
||||
return FAILED;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
payloads->destroy(payloads);
|
||||
|
||||
if (this->shared_secret.ptr != NULL)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Destroy existing shared_secret");
|
||||
allocator_free(this->shared_secret.ptr);
|
||||
this->shared_secret.ptr = NULL;
|
||||
this->shared_secret.len = 0;
|
||||
}
|
||||
|
||||
|
||||
/* 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, &(this->shared_secret));
|
||||
this->logger->log_chunk(this->logger, PRIVATE, "Shared secret", &this->shared_secret);
|
||||
|
||||
status = this->ike_sa->compute_secrets(this->ike_sa,this->shared_secret,this->sent_nonce, this->received_nonce);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
/* secrets could not be computed */
|
||||
this->logger->log(this->logger, ERROR | MORE, "Secrets could not be computed!");
|
||||
return status;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/****************************
|
||||
*
|
||||
* TODO
|
||||
*
|
||||
* Create PRF+ object
|
||||
*
|
||||
* Create Keys for next process
|
||||
*
|
||||
* Send IKE_SA_AUTH request
|
||||
*
|
||||
****************************/
|
||||
|
||||
|
||||
/* set up the reply */
|
||||
// status = this->ike_sa->build_message(this->ike_sa, IKE_SA_INIT, FALSE, &response);
|
||||
// if (status != SUCCESS)
|
||||
// {
|
||||
// return status;
|
||||
// }
|
||||
|
||||
// response->destroy(response);
|
||||
|
||||
*new_state = (state_t *) this;
|
||||
|
||||
return SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static ike_sa_state_t get_state(private_ike_sa_init_requested_t *this)
|
||||
{
|
||||
return IKE_SA_INIT_REQUESTED;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static status_t destroy(private_ike_sa_init_requested_t *this)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MORE, "Going to destroy state of type ike_sa_init_requested_t");
|
||||
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Destroy diffie hellman object");
|
||||
this->diffie_hellman->destroy(this->diffie_hellman);
|
||||
if (this->sent_nonce.ptr != NULL)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Destroy sent nonce");
|
||||
allocator_free(this->sent_nonce.ptr);
|
||||
}
|
||||
if (this->received_nonce.ptr != NULL)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Destroy received nonce");
|
||||
allocator_free(this->received_nonce.ptr);
|
||||
}
|
||||
|
||||
if (this->shared_secret.ptr != NULL)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Destroy shared secret");
|
||||
allocator_free(this->shared_secret.ptr);
|
||||
}
|
||||
|
||||
allocator_free(this);
|
||||
return SUCCESS;
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
ike_sa_init_requested_t *ike_sa_init_requested_create(protected_ike_sa_t *ike_sa,u_int16_t dh_group_priority, diffie_hellman_t *diffie_hellman, chunk_t sent_nonce)
|
||||
{
|
||||
private_ike_sa_init_requested_t *this = allocator_alloc_thing(private_ike_sa_init_requested_t);
|
||||
|
||||
if (this == NULL)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* interface functions */
|
||||
this->public.state_interface.process_message = (status_t (*) (state_t *,message_t *,state_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;
|
||||
|
||||
/* private data */
|
||||
this->ike_sa = ike_sa;
|
||||
this->received_nonce.ptr = NULL;
|
||||
this->received_nonce.len = 0;
|
||||
this->shared_secret.ptr = NULL;
|
||||
this->shared_secret.len = 0;
|
||||
this->logger = this->ike_sa->logger;
|
||||
this->diffie_hellman = diffie_hellman;
|
||||
this->sent_nonce = sent_nonce;
|
||||
this->dh_group_priority = dh_group_priority;
|
||||
|
||||
return &(this->public);
|
||||
}
|
||||
@@ -1,55 +0,0 @@
|
||||
/**
|
||||
* @file ike_sa_init_requested.h
|
||||
*
|
||||
* @brief State of a IKE_SA after requesting an IKE_SA_INIT
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef IKE_SA_INIT_REQUESTED_H_
|
||||
#define IKE_SA_INIT_REQUESTED_H_
|
||||
|
||||
#include <types.h>
|
||||
#include <ike_sa.h>
|
||||
#include <states/state.h>
|
||||
#include <transforms/diffie_hellman.h>
|
||||
|
||||
/**
|
||||
* @brief This class represents an IKE_SA state when requested an IKE_SA_INIT
|
||||
*
|
||||
*/
|
||||
typedef struct ike_sa_init_requested_s ike_sa_init_requested_t;
|
||||
|
||||
struct ike_sa_init_requested_s {
|
||||
/**
|
||||
* methods of the state_t interface
|
||||
*/
|
||||
state_t state_interface;
|
||||
|
||||
};
|
||||
|
||||
/**
|
||||
* Constructor of class ike_sa_init_responded_t
|
||||
*
|
||||
* @param ike_sa assigned ike_sa
|
||||
* @param diffie_hellman diffie_hellman object use to retrieve shared secret
|
||||
* @param sent_nonce Sent nonce value
|
||||
*/
|
||||
ike_sa_init_requested_t *ike_sa_init_requested_create(protected_ike_sa_t *ike_sa, u_int16_t dh_group_priority, diffie_hellman_t *diffie_hellman, chunk_t sent_nonce);
|
||||
|
||||
#endif /*IKE_SA_INIT_REQUESTED_H_*/
|
||||
@@ -1,132 +0,0 @@
|
||||
/**
|
||||
* @file ike_sa_init_responded.c
|
||||
*
|
||||
* @brief State of a IKE_SA after responding to an IKE_SA_INIT request
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* 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 "ike_sa_init_responded.h"
|
||||
|
||||
#include <utils/allocator.h>
|
||||
|
||||
/**
|
||||
* Private data of a ike_sa_init_responded_t object.
|
||||
*
|
||||
*/
|
||||
typedef struct private_ike_sa_init_responded_s private_ike_sa_init_responded_t;
|
||||
struct private_ike_sa_init_responded_s {
|
||||
/**
|
||||
* methods of the state_t interface
|
||||
*/
|
||||
ike_sa_init_responded_t public;
|
||||
|
||||
/**
|
||||
* Shared secret from DH-Exchange
|
||||
*
|
||||
* All needed secrets are derived from this shared secret and then passed to the next
|
||||
* state of type ike_sa_established_t
|
||||
*/
|
||||
chunk_t shared_secret;
|
||||
|
||||
/**
|
||||
* Sent nonce used to calculate secrets
|
||||
*/
|
||||
chunk_t received_nonce;
|
||||
|
||||
/**
|
||||
* Sent nonce used to calculate secrets
|
||||
*/
|
||||
chunk_t sent_nonce;
|
||||
|
||||
/**
|
||||
* Assigned IKE_SA
|
||||
*/
|
||||
protected_ike_sa_t *ike_sa;
|
||||
|
||||
/**
|
||||
* Logger used to log data
|
||||
*
|
||||
* Is logger of ike_sa!
|
||||
*/
|
||||
logger_t *logger;
|
||||
};
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static status_t process_message(private_ike_sa_init_responded_t *this, message_t *message, state_t **new_state)
|
||||
{
|
||||
*new_state = (state_t *) this;
|
||||
return SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static ike_sa_state_t get_state(private_ike_sa_init_responded_t *this)
|
||||
{
|
||||
return IKE_SA_INIT_RESPONDED;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static status_t destroy(private_ike_sa_init_responded_t *this)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MORE, "Going to destroy ike_sa_init_responded_t state object");
|
||||
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Destroy shared_secret");
|
||||
allocator_free(this->shared_secret.ptr);
|
||||
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Destroy sent nonce");
|
||||
allocator_free(this->sent_nonce.ptr);
|
||||
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Destroy received nonce");
|
||||
allocator_free(this->received_nonce.ptr);
|
||||
|
||||
allocator_free(this);
|
||||
return SUCCESS;
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
|
||||
ike_sa_init_responded_t *ike_sa_init_responded_create(protected_ike_sa_t *ike_sa, chunk_t shared_secret, chunk_t received_nonce, chunk_t sent_nonce)
|
||||
{
|
||||
private_ike_sa_init_responded_t *this = allocator_alloc_thing(private_ike_sa_init_responded_t);
|
||||
|
||||
if (this == NULL)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* interface functions */
|
||||
this->public.state_interface.process_message = (status_t (*) (state_t *,message_t *,state_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;
|
||||
|
||||
/* private data */
|
||||
this->ike_sa = ike_sa;
|
||||
this->logger = this->ike_sa->logger;
|
||||
this->shared_secret = shared_secret;
|
||||
this->received_nonce = received_nonce;
|
||||
this->sent_nonce = sent_nonce;
|
||||
|
||||
return &(this->public);
|
||||
}
|
||||
@@ -1,50 +0,0 @@
|
||||
/**
|
||||
* @file ike_sa_init_responded.h
|
||||
*
|
||||
* @brief State of a IKE_SA after responding to an IKE_SA_INIT request
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef IKE_SA_INIT_RESPONDED_H_
|
||||
#define IKE_SA_INIT_RESPONDED_H_
|
||||
|
||||
#include <ike_sa.h>
|
||||
#include <states/state.h>
|
||||
|
||||
/**
|
||||
* @brief This class represents an IKE_SA state when responded to an IKE_SA_INIT request
|
||||
*
|
||||
*/
|
||||
typedef struct ike_sa_init_responded_s ike_sa_init_responded_t;
|
||||
|
||||
struct ike_sa_init_responded_s {
|
||||
/**
|
||||
* methods of the state_t interface
|
||||
*/
|
||||
state_t state_interface;
|
||||
|
||||
};
|
||||
|
||||
/**
|
||||
* Constructor of class ike_sa_init_responded_t
|
||||
*
|
||||
* @param ike_sa assigned IKE_SA
|
||||
*/
|
||||
ike_sa_init_responded_t *ike_sa_init_responded_create(protected_ike_sa_t *ike_sa, chunk_t shared_secret, chunk_t received_nonce, chunk_t sent_nonce);
|
||||
|
||||
#endif /*IKE_SA_INIT_RESPONDED_H_*/
|
||||
@@ -1,618 +0,0 @@
|
||||
/**
|
||||
* @file initiator_init.c
|
||||
*
|
||||
* @brief Start state of a IKE_SA as initiator
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* 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 "initiator_init.h"
|
||||
|
||||
|
||||
#include <globals.h>
|
||||
#include <states/state.h>
|
||||
#include <states/ike_sa_init_requested.h>
|
||||
#include <utils/allocator.h>
|
||||
#include <transforms/diffie_hellman.h>
|
||||
#include <encoding/payloads/sa_payload.h>
|
||||
#include <encoding/payloads/ke_payload.h>
|
||||
#include <encoding/payloads/nonce_payload.h>
|
||||
|
||||
|
||||
/**
|
||||
* Private data of a initiator_init_t object.
|
||||
*
|
||||
*/
|
||||
typedef struct private_initiator_init_s private_initiator_init_t;
|
||||
struct private_initiator_init_s {
|
||||
/**
|
||||
* Methods of the state_t interface.
|
||||
*/
|
||||
initiator_init_t public;
|
||||
|
||||
/**
|
||||
* Assigned IKE_SA.
|
||||
*/
|
||||
protected_ike_sa_t *ike_sa;
|
||||
|
||||
/**
|
||||
* Diffie hellman object used to generate public DH value.
|
||||
* This objet is passed to the next state of type ike_sa_init_requested_t.
|
||||
*/
|
||||
diffie_hellman_t *diffie_hellman;
|
||||
|
||||
/**
|
||||
* DH group number.
|
||||
*/
|
||||
u_int16_t dh_group_number;
|
||||
|
||||
/**
|
||||
* DH group priority used to get dh_group_number from configuration manager.
|
||||
* This priority is passed to the next state of type ike_sa_init_requested_t.
|
||||
*/
|
||||
u_int16_t dh_group_priority;
|
||||
|
||||
/**
|
||||
* Sent nonce.
|
||||
* This nonce is passed to the next state of type ike_sa_init_requested_t.
|
||||
*/
|
||||
chunk_t sent_nonce;
|
||||
|
||||
/**
|
||||
* Proposals used to initiate connection.
|
||||
*
|
||||
*/
|
||||
linked_list_t *proposals;
|
||||
|
||||
/**
|
||||
* Logger used to log :-)
|
||||
*
|
||||
* Is logger of ike_sa!
|
||||
*/
|
||||
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.
|
||||
*
|
||||
* @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_initiator_init_t *this, payload_t **payload);
|
||||
|
||||
/**
|
||||
* Builds the KE payload for this state.
|
||||
*
|
||||
* @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_initiator_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_initiator_init_t *this, payload_t **payload);
|
||||
|
||||
/**
|
||||
* Destroy function called internally of this class after state change succeeded.
|
||||
*
|
||||
* 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_initiator_init_t *this);
|
||||
};
|
||||
|
||||
/**
|
||||
* Implements function initiator_init_t.initiate_connection.
|
||||
*/
|
||||
static status_t initiate_connection (private_initiator_init_t *this, char *name, state_t **new_state)
|
||||
{
|
||||
linked_list_iterator_t *proposal_iterator;
|
||||
ike_sa_init_requested_t *next_state;
|
||||
message_t *message;
|
||||
packet_t *packet;
|
||||
status_t status;
|
||||
|
||||
this->logger->log(this->logger, CONTROL, "Initializing connection %s",name);
|
||||
|
||||
status = global_configuration_manager->get_local_host(global_configuration_manager, name, &(this->ike_sa->me.host));
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "Could not retrieve local host configuration information for %s",name);
|
||||
return INVALID_ARG;
|
||||
}
|
||||
|
||||
status = global_configuration_manager->get_remote_host(global_configuration_manager, name, &(this->ike_sa->other.host));
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "Could not retrieve remote host configuration information for %s",name);
|
||||
return INVALID_ARG;
|
||||
}
|
||||
|
||||
status = global_configuration_manager->get_dh_group_number(global_configuration_manager, name, &(this->dh_group_number), this->dh_group_priority);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "Could not retrieve DH group number configuration for %s",name);
|
||||
return INVALID_ARG;
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
status = global_configuration_manager->get_proposals_for_host(global_configuration_manager, this->ike_sa->other.host, proposal_iterator);
|
||||
/* not needed anymore */
|
||||
proposal_iterator->destroy(proposal_iterator);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "Could not retrieve Proposals for %s",name);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* a diffie hellman object could allready exist caused by an failed initiate_connection call */
|
||||
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)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Object of type diffie_hellman_t could not be created!");
|
||||
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 = CHUNK_INITIALIZER;
|
||||
}
|
||||
|
||||
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)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not create nonce!");
|
||||
return OUT_OF_RES;
|
||||
}
|
||||
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 empty message");
|
||||
return status;
|
||||
}
|
||||
|
||||
/* build SA payload */
|
||||
status = this->build_sa_payload(this, &payload);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not build SA payload");
|
||||
message->destroy(message);
|
||||
return status;
|
||||
}
|
||||
|
||||
this ->logger->log(this->logger, CONTROL|MOST, "add SA payload to message");
|
||||
status = message->add_payload(message, payload);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not add SA payload to message");
|
||||
payload->destroy(payload);
|
||||
message->destroy(message);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* build KE payload */
|
||||
status = this->build_ke_payload(this, &payload);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not build KE payload");
|
||||
message->destroy(message);
|
||||
return status;
|
||||
}
|
||||
|
||||
this ->logger->log(this->logger, CONTROL|MOST, "add KE payload to message");
|
||||
status = message->add_payload(message, payload);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not add KE payload to message");
|
||||
payload->destroy(payload);
|
||||
message->destroy(message);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* build Nonce payload */
|
||||
status = this->build_nonce_payload(this, &payload);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not build NONCE payload");
|
||||
message->destroy(message);
|
||||
return status;
|
||||
}
|
||||
|
||||
this ->logger->log(this->logger, CONTROL|MOST, "add nonce payload to message");
|
||||
status = message->add_payload(message, payload);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not add nonce payload to message");
|
||||
payload->destroy(payload);
|
||||
message->destroy(message);
|
||||
return status;
|
||||
}
|
||||
|
||||
*request = message;
|
||||
return SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* implements private_initiator_init_t.build_sa_payload
|
||||
*/
|
||||
static status_t build_sa_payload(private_initiator_init_t *this, payload_t **payload)
|
||||
{
|
||||
sa_payload_t* sa_payload;
|
||||
linked_list_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;
|
||||
}
|
||||
|
||||
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 **) ¤t_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,¤t_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->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_initiator_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;
|
||||
}
|
||||
|
||||
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, this->dh_group_number);
|
||||
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);
|
||||
|
||||
this->logger->log(this->logger, CONTROL|MORE, "ke payload builded");
|
||||
|
||||
*payload = (payload_t *) ke_payload;
|
||||
return SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* implements private_initiator_init_t.build_nonce_payload
|
||||
*/
|
||||
static status_t build_nonce_payload(private_initiator_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;
|
||||
|
||||
this->logger->log(this->logger, CONTROL|MORE, "nonce payload builded");
|
||||
|
||||
return SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static status_t process_message(private_initiator_init_t *this, message_t *message, state_t **new_state)
|
||||
{
|
||||
*new_state = (state_t *) this;
|
||||
this->logger->log(this->logger, ERROR|MORE, "In state INITIATOR_INIT no message is processed");
|
||||
return FAILED;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static ike_sa_state_t get_state(private_initiator_init_t *this)
|
||||
{
|
||||
return INITIATOR_INIT;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static status_t destroy(private_initiator_init_t *this)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MORE, "Going to destroy initiator_init_t state object");
|
||||
|
||||
/* 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 **)¤t_proposal);
|
||||
current_proposal->destroy(current_proposal);
|
||||
}
|
||||
this->proposals->destroy(this->proposals);
|
||||
|
||||
/* 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);
|
||||
}
|
||||
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;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implements private_initiator_init_t.destroy_after_state_change
|
||||
*/
|
||||
static status_t destroy_after_state_change (private_initiator_init_t *this)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MORE, "Going to destroy initiator_init_t state object");
|
||||
|
||||
/* 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 **)¤t_proposal);
|
||||
current_proposal->destroy(current_proposal);
|
||||
}
|
||||
this->proposals->destroy(this->proposals);
|
||||
allocator_free(this);
|
||||
return SUCCESS;
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
initiator_init_t *initiator_init_create(protected_ike_sa_t *ike_sa)
|
||||
{
|
||||
private_initiator_init_t *this = allocator_alloc_thing(private_initiator_init_t);
|
||||
|
||||
if (this == NULL)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* interface functions */
|
||||
this->public.state_interface.process_message = (status_t (*) (state_t *,message_t *,state_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;
|
||||
|
||||
/* public functions */
|
||||
this->public.initiate_connection = (status_t (*)(initiator_init_t *, char *, state_t **)) initiate_connection;
|
||||
|
||||
/* 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;
|
||||
|
||||
/* private data */
|
||||
this->ike_sa = ike_sa;
|
||||
this->dh_group_priority = 1;
|
||||
this->logger = this->ike_sa->logger;
|
||||
this->proposals = linked_list_create();
|
||||
this->sent_nonce = CHUNK_INITIALIZER;
|
||||
if (this->proposals == NULL)
|
||||
{
|
||||
allocator_free(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return &(this->public);
|
||||
}
|
||||
@@ -1,63 +0,0 @@
|
||||
/**
|
||||
* @file initiator_init.h
|
||||
*
|
||||
* @brief Start state of a IKE_SA as initiator
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef INITIATOR_INIT_H_
|
||||
#define INITIATOR_INIT_H_
|
||||
|
||||
#include <ike_sa.h>
|
||||
#include <states/state.h>
|
||||
|
||||
|
||||
/**
|
||||
* @brief This class represents an IKE_SA state when initializing
|
||||
* a connection as initiator
|
||||
*
|
||||
*/
|
||||
typedef struct initiator_init_s initiator_init_t;
|
||||
|
||||
struct initiator_init_s {
|
||||
/**
|
||||
* methods of the state_t interface
|
||||
*/
|
||||
state_t state_interface;
|
||||
|
||||
/**
|
||||
* Initiate a new connection with given configuration name
|
||||
*
|
||||
* @param this calling object
|
||||
* @param name name of the configuration
|
||||
* @param new_state new state if call succeeded
|
||||
* @return TODO
|
||||
*/
|
||||
status_t (*initiate_connection) (initiator_init_t *this, char *name, state_t **new_state);
|
||||
};
|
||||
|
||||
/**
|
||||
* Constructor of class initiator_init_t
|
||||
*
|
||||
* @param ike_sa assigned IKE_SA
|
||||
*/
|
||||
initiator_init_t *initiator_init_create(protected_ike_sa_t *ike_sa);
|
||||
|
||||
|
||||
#endif /*INITIATOR_INIT_H_*/
|
||||
@@ -1,743 +0,0 @@
|
||||
/**
|
||||
* @file responder_init.c
|
||||
*
|
||||
* @brief Start state of a IKE_SA as responder
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* 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 "responder_init.h"
|
||||
|
||||
#include <globals.h>
|
||||
#include <states/state.h>
|
||||
#include <states/ike_sa_init_responded.h>
|
||||
#include <utils/allocator.h>
|
||||
#include <encoding/payloads/sa_payload.h>
|
||||
#include <encoding/payloads/ke_payload.h>
|
||||
#include <encoding/payloads/nonce_payload.h>
|
||||
#include <transforms/diffie_hellman.h>
|
||||
|
||||
/**
|
||||
* Private data of a responder_init_t object.
|
||||
*
|
||||
*/
|
||||
typedef struct private_responder_init_s private_responder_init_t;
|
||||
struct private_responder_init_s {
|
||||
/**
|
||||
* Methods of the state_t interface.
|
||||
*/
|
||||
responder_init_t public;
|
||||
|
||||
/**
|
||||
* Assigned IKE_SA.
|
||||
*/
|
||||
protected_ike_sa_t *ike_sa;
|
||||
|
||||
/**
|
||||
* Diffie Hellman object used to compute shared secret.
|
||||
*
|
||||
* After processing of incoming IKE_SA_INIT-Request the shared key is
|
||||
* passed to the next state of type ike_sa_init_responded_t.
|
||||
*/
|
||||
diffie_hellman_t *diffie_hellman;
|
||||
|
||||
/**
|
||||
* Diffie Hellman group number.
|
||||
*/
|
||||
u_int16_t dh_group_number;
|
||||
|
||||
/**
|
||||
* Priority used to get matching dh_group number.
|
||||
*/
|
||||
u_int16_t dh_group_priority;
|
||||
|
||||
/**
|
||||
* Sent nonce value.
|
||||
*
|
||||
* This value is passed to the next state of type ike_sa_init_responded_t.
|
||||
*/
|
||||
chunk_t sent_nonce;
|
||||
|
||||
/**
|
||||
* Received nonce value
|
||||
*
|
||||
* This value is passed to the next state of type ike_sa_init_responded_t.
|
||||
*/
|
||||
chunk_t received_nonce;
|
||||
|
||||
/**
|
||||
* Logger used to log data
|
||||
*
|
||||
* Is logger of ike_sa!
|
||||
*/
|
||||
logger_t *logger;
|
||||
|
||||
/**
|
||||
* Proposals used to initiate connection
|
||||
*/
|
||||
linked_list_t *proposals;
|
||||
|
||||
/**
|
||||
* Builds the SA payload for this state.
|
||||
*
|
||||
* @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);
|
||||
|
||||
/**
|
||||
* Builds the KE payload for this state.
|
||||
*
|
||||
* @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);
|
||||
/**
|
||||
* 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);
|
||||
|
||||
/**
|
||||
* Destroy function called internally of this class after state change succeeded.
|
||||
*
|
||||
* 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);
|
||||
};
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static status_t process_message(private_responder_init_t *this, message_t *message, state_t **new_state)
|
||||
{
|
||||
linked_list_iterator_t *payloads;
|
||||
host_t *source, *destination;
|
||||
status_t status;
|
||||
message_t *response;
|
||||
payload_t *payload;
|
||||
packet_t *packet;
|
||||
chunk_t shared_secret;
|
||||
exchange_type_t exchange_type;
|
||||
ike_sa_init_responded_t *next_state;
|
||||
|
||||
exchange_type = message->get_exchange_type(message);
|
||||
if (exchange_type != IKE_SA_INIT)
|
||||
{
|
||||
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 */
|
||||
message->get_source(message, &source);
|
||||
message->get_destination(message, &destination);
|
||||
|
||||
/* we need to clone them, since we destroy the message later */
|
||||
destination->clone(destination, &(this->ike_sa->me.host));
|
||||
source->clone(source, &(this->ike_sa->other.host));
|
||||
|
||||
/* parse incoming message */
|
||||
status = message->parse_body(message);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "Could not parse body of request message");
|
||||
return status;
|
||||
}
|
||||
|
||||
/* iterate over incoming payloads. We can be sure, the message contains only accepted payloads! */
|
||||
status = message->get_payload_iterator(message, &payloads);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Fatal error: Could not get payload interator");
|
||||
return status;
|
||||
}
|
||||
|
||||
while (payloads->has_next(payloads))
|
||||
{
|
||||
payload_t *payload;
|
||||
|
||||
/* get current payload */
|
||||
payloads->current(payloads, (void**)&payload);
|
||||
|
||||
this->logger->log(this->logger, CONTROL|MORE, "Processing payload of type %s", mapping_find(payload_type_m, payload->get_type(payload)));
|
||||
switch (payload->get_type(payload))
|
||||
{
|
||||
case SECURITY_ASSOCIATION:
|
||||
{
|
||||
sa_payload_t *sa_payload = (sa_payload_t*)payload;
|
||||
linked_list_iterator_t *suggested_proposals, *accepted_proposals;
|
||||
encryption_algorithm_t encryption_algorithm = ENCR_UNDEFINED;
|
||||
pseudo_random_function_t pseudo_random_function = PRF_UNDEFINED;
|
||||
integrity_algorithm_t integrity_algorithm = AUTH_UNDEFINED;
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
/* 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;
|
||||
}
|
||||
|
||||
/* now let the configuration-manager select a subset of the proposals */
|
||||
status = global_configuration_manager->select_proposals_for_host(global_configuration_manager,
|
||||
this->ike_sa->other.host, suggested_proposals, accepted_proposals);
|
||||
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);
|
||||
payloads->destroy(payloads);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* iterators are not needed anymore */
|
||||
suggested_proposals->destroy(suggested_proposals);
|
||||
|
||||
|
||||
/* now let the configuration-manager return the transforms for the given proposal*/
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Get transforms for accepted proposal");
|
||||
status = global_configuration_manager->get_transforms_for_host_and_proposals(global_configuration_manager,
|
||||
this->ike_sa->other.host, accepted_proposals, &encryption_algorithm,&pseudo_random_function,&integrity_algorithm);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "Accepted proposals not supported?!");
|
||||
accepted_proposals->destroy(accepted_proposals);
|
||||
payloads->destroy(payloads);
|
||||
return status;
|
||||
}
|
||||
accepted_proposals->destroy(accepted_proposals);
|
||||
|
||||
this->ike_sa->prf = prf_create(pseudo_random_function);
|
||||
if (this->ike_sa->prf == NULL)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "PRF type not supported");
|
||||
payloads->destroy(payloads);
|
||||
return FAILED;
|
||||
}
|
||||
|
||||
this->logger->log(this->logger, CONTROL | MORE, "SA Payload processed");
|
||||
/* ok, we have what we need for sa_payload (proposals are stored in this->proposals)*/
|
||||
break;
|
||||
}
|
||||
case KEY_EXCHANGE:
|
||||
{
|
||||
ke_payload_t *ke_payload = (ke_payload_t*)payload;
|
||||
diffie_hellman_group_t group;
|
||||
diffie_hellman_t *dh;
|
||||
bool allowed_group;
|
||||
|
||||
group = ke_payload->get_dh_group_number(ke_payload);
|
||||
|
||||
status = global_configuration_manager->is_dh_group_allowed_for_host(global_configuration_manager,
|
||||
this->ike_sa->other.host, group, &allowed_group);
|
||||
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "Could not get informations about DH group");
|
||||
payloads->destroy(payloads);
|
||||
return status;
|
||||
}
|
||||
if (!allowed_group)
|
||||
{
|
||||
/** @todo Send info reply */
|
||||
}
|
||||
|
||||
/* create diffie hellman object to handle DH exchange */
|
||||
dh = diffie_hellman_create(group);
|
||||
if (dh == NULL)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not generate DH object");
|
||||
payloads->destroy(payloads);
|
||||
return OUT_OF_RES;
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
this->diffie_hellman = dh;
|
||||
|
||||
this->logger->log(this->logger, CONTROL | MORE, "KE Payload processed");
|
||||
break;
|
||||
}
|
||||
case NONCE:
|
||||
{
|
||||
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;
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
this->logger->log(this->logger, CONTROL | MORE, "Nonce Payload processed");
|
||||
break;
|
||||
}
|
||||
default:
|
||||
{
|
||||
this->logger->log(this->logger, ERROR | MORE, "Payload type not supported!");
|
||||
payloads->destroy(payloads);
|
||||
return OUT_OF_RES;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
/* iterator can be destroyed */
|
||||
payloads->destroy(payloads);
|
||||
|
||||
this->logger->log(this->logger, CONTROL | MORE, "Request successfully handled. Going to create reply.");
|
||||
|
||||
this->logger->log(this->logger, CONTROL | MOST, "Going to create nonce.");
|
||||
if (this->ike_sa->randomizer->allocate_pseudo_random_bytes(this->ike_sa->randomizer, NONCE_SIZE, &(this->sent_nonce)) != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not create nonce!");
|
||||
return OUT_OF_RES;
|
||||
}
|
||||
|
||||
/* 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;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* 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;
|
||||
}
|
||||
|
||||
/* 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 ->logger->log(this->logger, CONTROL|MOST, "add SA payload to message");
|
||||
status = response->add_payload(response, payload);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not add SA payload to message");
|
||||
return status;
|
||||
}
|
||||
|
||||
/* 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 ->logger->log(this->logger, CONTROL|MOST, "add KE payload to message");
|
||||
status = response->add_payload(response, payload);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not add KE payload to message");
|
||||
return status;
|
||||
}
|
||||
|
||||
/* 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 ->logger->log(this->logger, CONTROL|MOST, "add nonce payload to message");
|
||||
status = response->add_payload(response, payload);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Could not add nonce payload to message");
|
||||
return status;
|
||||
}
|
||||
|
||||
/* generate packet */
|
||||
this ->logger->log(this->logger, CONTROL|MOST, "generate packet from message");
|
||||
status = response->generate(response, &packet);
|
||||
if (status != SUCCESS)
|
||||
{
|
||||
this->logger->log(this->logger, ERROR, "Fatal 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");
|
||||
return status;
|
||||
}
|
||||
|
||||
/* state can now be changed */
|
||||
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;
|
||||
}
|
||||
|
||||
if ( this->ike_sa->last_responded_message != NULL)
|
||||
{
|
||||
/* destroy message */
|
||||
this ->logger->log(this->logger, CONTROL|MOST, "Destroy stored last responded message");
|
||||
this->ike_sa->last_responded_message->destroy(this->ike_sa->last_responded_message);
|
||||
}
|
||||
this->ike_sa->last_responded_message = response;
|
||||
|
||||
/* message counter can now be increased */
|
||||
this ->logger->log(this->logger, CONTROL|MOST, "Increate message counter for incoming messages");
|
||||
this->ike_sa->message_id_in++;
|
||||
|
||||
*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,RESPONDER_INIT),mapping_find(ike_sa_state_m,IKE_SA_INIT_RESPONDED) );
|
||||
|
||||
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_sa_payload
|
||||
*/
|
||||
static status_t build_sa_payload(private_responder_init_t *this, payload_t **payload)
|
||||
{
|
||||
sa_payload_t* sa_payload;
|
||||
linked_list_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;
|
||||
}
|
||||
|
||||
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 **) ¤t_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,¤t_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->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)
|
||||
{
|
||||
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;
|
||||
}
|
||||
|
||||
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);
|
||||
|
||||
*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)
|
||||
{
|
||||
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;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static ike_sa_state_t get_state(private_responder_init_t *this)
|
||||
{
|
||||
return RESPONDER_INIT;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implements state_t.get_state
|
||||
*/
|
||||
static status_t destroy(private_responder_init_t *this)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MORE, "Going to destroy responder init state object");
|
||||
|
||||
/* 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 **)¤t_proposal);
|
||||
current_proposal->destroy(current_proposal);
|
||||
}
|
||||
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);
|
||||
}
|
||||
|
||||
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)
|
||||
{
|
||||
this->logger->log(this->logger, CONTROL | MORE, "Going to destroy responder_init_t state object");
|
||||
|
||||
/* 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 **)¤t_proposal);
|
||||
current_proposal->destroy(current_proposal);
|
||||
}
|
||||
this->proposals->destroy(this->proposals);
|
||||
|
||||
/* 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;
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
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 *,state_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;
|
||||
|
||||
/* private functions */
|
||||
this->build_sa_payload = build_sa_payload;
|
||||
this->build_ke_payload = build_ke_payload;
|
||||
this->build_nonce_payload = build_nonce_payload;
|
||||
this->destroy_after_state_change = destroy_after_state_change;
|
||||
|
||||
/* private data */
|
||||
this->ike_sa = ike_sa;
|
||||
this->logger = this->ike_sa->logger;
|
||||
this->sent_nonce.ptr = NULL;
|
||||
this->sent_nonce.len = 0;
|
||||
this->received_nonce.ptr = NULL;
|
||||
this->received_nonce.len = 0;
|
||||
this->proposals = linked_list_create();
|
||||
if (this->proposals == NULL)
|
||||
{
|
||||
allocator_free(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return &(this->public);
|
||||
}
|
||||
@@ -1,51 +0,0 @@
|
||||
/**
|
||||
* @file responder_init.h
|
||||
*
|
||||
* @brief Start state of a IKE_SA as responder
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef RESPONDER_INIT_H_
|
||||
#define RESPONDER_INIT_H_
|
||||
|
||||
#include <ike_sa.h>
|
||||
#include <states/state.h>
|
||||
|
||||
/**
|
||||
* @brief This class represents an IKE_SA state when initializing
|
||||
* a connection as responder
|
||||
*
|
||||
*/
|
||||
typedef struct responder_init_s responder_init_t;
|
||||
|
||||
struct responder_init_s {
|
||||
/**
|
||||
* methods of the state_t interface
|
||||
*/
|
||||
state_t state_interface;
|
||||
|
||||
};
|
||||
|
||||
/**
|
||||
* Constructor of class responder_init_t
|
||||
*
|
||||
* @param ike_sa assigned IKE_SA
|
||||
*/
|
||||
responder_init_t *responder_init_create(protected_ike_sa_t *ike_sa);
|
||||
|
||||
#endif /*RESPONDER_INIT_H_*/
|
||||
@@ -1,37 +0,0 @@
|
||||
/**
|
||||
* @file state.c
|
||||
*
|
||||
* @brief Interface for a specific IKE_SA state
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* 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 "state.h"
|
||||
|
||||
|
||||
/**
|
||||
* string mappings for ike_sa_state
|
||||
*/
|
||||
mapping_t ike_sa_state_m[] = {
|
||||
{INITIATOR_INIT, "INITIATOR_INIT"},
|
||||
{RESPONDER_INIT, "RESPONDER_INIT"},
|
||||
{IKE_SA_INIT_REQUESTED, "IKE_SA_INIT_REQUESTED"},
|
||||
{IKE_SA_INIT_RESPONDED, "IKE_SA_INIT_RESPONDED"},
|
||||
{IKE_AUTH_REQUESTED, "IKE_AUTH_REQUESTED"},
|
||||
{IKE_SA_ESTABLISHED, "IKE_SA_ESTABLISHED"},
|
||||
{MAPPING_END, NULL}
|
||||
};
|
||||
@@ -1,117 +0,0 @@
|
||||
/**
|
||||
* @file state.h
|
||||
*
|
||||
* @brief Interface for a specific IKE_SA state
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef STATE_H_
|
||||
#define STATE_H_
|
||||
|
||||
#include <definitions.h>
|
||||
#include <types.h>
|
||||
#include <encoding/message.h>
|
||||
|
||||
extern mapping_t ike_sa_state_m[];
|
||||
|
||||
/**
|
||||
* States in which a IKE_SA can actually be
|
||||
*/
|
||||
typedef enum ike_sa_state_e ike_sa_state_t;
|
||||
|
||||
enum ike_sa_state_e {
|
||||
|
||||
/**
|
||||
* IKE_SA is is not in a state as initiator
|
||||
*/
|
||||
INITIATOR_INIT = 1,
|
||||
|
||||
/**
|
||||
* IKE_SA is is not in a state as responder
|
||||
*/
|
||||
RESPONDER_INIT = 2,
|
||||
|
||||
/**
|
||||
* A IKE_SA_INIT-message was sent: role initiator
|
||||
*/
|
||||
IKE_SA_INIT_REQUESTED = 3,
|
||||
|
||||
/**
|
||||
* A IKE_SA_INIT-message was replied: role responder
|
||||
*/
|
||||
IKE_SA_INIT_RESPONDED = 4,
|
||||
|
||||
/**
|
||||
* An IKE_AUTH-message was sent after a successful
|
||||
* IKE_SA_INIT-exchange: role initiator
|
||||
*/
|
||||
IKE_AUTH_REQUESTED = 5,
|
||||
|
||||
/**
|
||||
* An IKE_AUTH-message was replied: role responder.
|
||||
* In this state, all the informations for an IKE_SA
|
||||
* and one CHILD_SA are known.
|
||||
*/
|
||||
IKE_SA_ESTABLISHED = 6
|
||||
};
|
||||
|
||||
/**
|
||||
* string mappings for ike_sa_state_t
|
||||
*/
|
||||
extern mapping_t ike_sa_state_m[];
|
||||
|
||||
/**
|
||||
* @brief This interface represents an IKE_SA state
|
||||
*
|
||||
*/
|
||||
typedef struct state_s state_t;
|
||||
|
||||
struct state_s {
|
||||
|
||||
/**
|
||||
* @brief Processes a incoming IKEv2-Message of type message_t
|
||||
*
|
||||
* @param this state_t object
|
||||
* @param[in] message message_t object to process
|
||||
* @param this state_t pointer to the new state_t object
|
||||
* @return
|
||||
* - SUCCESSFUL if succeeded
|
||||
* - FAILED otherwise
|
||||
*/
|
||||
status_t (*process_message) (state_t *this,message_t *message,state_t **new_state);
|
||||
|
||||
|
||||
/**
|
||||
* @brief Get the current state
|
||||
*
|
||||
* @param this state_t object
|
||||
* @return state
|
||||
*/
|
||||
ike_sa_state_t (*get_state) (state_t *this);
|
||||
|
||||
/**
|
||||
* @brief Destroys a state_t object
|
||||
*
|
||||
* @param this state_t object
|
||||
* @return SUCCESS in any case
|
||||
*/
|
||||
status_t (*destroy) (state_t *this);
|
||||
};
|
||||
|
||||
|
||||
#endif /*STATE_H_*/
|
||||
Reference in New Issue
Block a user