+++ /dev/null
-/**
- * @file encodings.c
- *
- * @brief Type definitions for parser and generator,
- * also payload types are defined here.
- *
- * Header is parsed like a payload and gets its one payload_id
- * from PRIVATE USE space. Also the substructures
- * of specific payload types get their own payload_id
- * from PRIVATE_USE space. See RFC for mor informations.
- *
- */
-
-/*
- * 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 <stdlib.h>
-
-#include "../types.h"
-#include "encodings.h"
-#include "ike_header.h"
-
-extern payload_info_t ike_header_info;
-
-/*
- * build the mappings for payload_type_t
- */
-mapping_t payload_type_t_mappings[] = {
- {NO_PAYLOAD, "NO_PAYLOAD"},
- {SECURITY_ASSOCIATION, "SECURITY_ASSOCIATION"},
- {KEY_EXCHANGE, "KEY_EXCHANGE"},
- {ID_INITIATOR, "ID_INITIATOR"},
- {ID_RESPONDER, "ID_RESPONDER"},
- {CERTIFICATE, "CERTIFICATE"},
- {CERTIFICATE_REQUEST, "CERTIFICATE_REQUEST"},
- {AUTHENTICATION, "AUTHENTICATION"},
- {NONCE, "NONCE"},
- {NOTIFY, "NOTIFY"},
- {DELETE, "DELETE"},
- {VENDOR_ID, "VENDOR_ID"},
- {TRAFFIC_SELECTOR_INITIATOR, "TRAFFIC_SELECTOR_INITIATOR"},
- {TRAFFIC_SELECTOR_RESPONDER, "TRAFFIC_SELECTOR_RESPONDER"},
- {ENCRYPTED, "ENCRYPTED"},
- {CONFIGURATION, "CONFIGURATION"},
- {EXTENSIBLE_AUTHENTICATION, "EXTENSIBLE_AUTHENTICATION"},
- {HEADER, "HEADER"},
- {MAPPING_END, NULL}
-};
-
-
-/**
- * List containing all payload informations
- * supported by parser and generator.
- *
- * @warning This list must be NULL terminated.
- */
-payload_info_t *payload_infos[] = {
- &ike_header_info,
- NULL
-};
-
-
+++ /dev/null
-/**
- * @file encodings.h
- *
- * @brief Type definitions for parser and generator,
- * also payload types are defined here.
- *
- * Header is parsed like a payload and gets its one payload_id
- * from PRIVATE USE space. Also the substructures
- * of specific payload types get their own payload_id
- * from PRIVATE_USE space. See RFC for mor informations.
- *
- */
-
-/*
- * 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 ENCODINGS_H_
-#define ENCODINGS_H_
-
-#include "../types.h"
-#include "../definitions.h"
-
-
-/**
- * @brief All different kinds of encoding types.
- *
- * Each field of an IKEv2-Message (in header or payload)
- * which has to be parsed or generated differently has its own
- * type defined here.
- */
-typedef enum encoding_type_e encoding_type_t;
-
-enum encoding_type_e{
- /**
- * Representing a 4 Bit unsigned int value
- *
- *
- * When generating it must be changed from host to network order.
- * The value is read from the associated data struct.
- * The current write position is moved 4 bit forward afterwards.
- *
- * When parsing it must be changed from network to host order.
- * The value is written to the associated data struct.
- * The current read pointer is moved 4 bit forward afterwards.
- */
- U_INT_4,
- /**
- * Representing a 8 Bit unsigned int value
- *
- *
- * When generating it must be changed from host to network order.
- * The value is read from the associated data struct.
- * The current write position is moved 8 bit forward afterwards.
- *
- * When parsing it must be changed from network to host order.
- * The value is written to the associated data struct.
- * The current read pointer is moved 8 bit forward afterwards.
- */
- U_INT_8,
- /**
- * Representing a 16 Bit unsigned int value
- *
- *
- * When generating it must be changed from host to network order.
- * The value is read from the associated data struct.
- * The current write position is moved 16 bit forward afterwards.
- *
- * When parsing it must be changed from network to host order.
- * The value is written to the associated data struct.
- * The current read pointer is moved 16 bit forward afterwards.
- */
- U_INT_16,
- /**
- * Representing a 32 Bit unsigned int value
- *
- * When generating it must be changed from host to network order.
- * The value is read from the associated data struct.
- * The current write position is moved 32 bit forward afterwards.
- *
- * When parsing it must be changed from network to host order.
- * The value is written to the associated data struct.
- * The current read pointer is moved 32 bit forward afterwards.
- */
-
- U_INT_32,
- /**
- * Representing a 64 Bit unsigned int value
- *
- * When generating it must be changed from host to network order.
- * The value is read from the associated data struct.
- * The current write position is moved 64 bit forward afterwards.
- *
- * When parsing it must be changed from network to host order.
- * The value is written to the associated data struct.
- * The current read pointer is moved 64 bit forward afterwards.
- */
- U_INT_64,
- /**
- * @brief represents a RESERVED_BIT used in FLAG-Bytes
- *
- * When generating, the next bit is set to zero and the current write
- * position is moved one bit forward.
- * No value is read from the associated data struct.
- * The current write position is moved 1 bit forward afterwards.
- *
- * When parsing, the current read pointer is moved one bit forward.
- * No value is written to the associated data struct.
- * The current read pointer is moved 1 bit forward afterwards.
- */
- RESERVED_BIT,
- /**
- * @brief represents a RESERVED_BYTE
- *
- * When generating, the next byte is set to zero and the current write
- * position is moved one byte forward.
- * No value is read from the associated data struct.
- * The current write position is moved 1 byte forward afterwards.
- *
- * When parsing, the current read pointer is moved one byte forward.
- * No value is written to the associated data struct.
- * The current read pointer is moved 1 byte forward afterwards.
- */
- RESERVED_BYTE,
- /**
- * Representing a 1 Bit flag.
- *
- * When generation, the next bit is set to 1 if the associated value
- * in the data struct is TRUE, 0 otherwise. The current write position
- * is moved 1 bit forward afterwards.
- *
- * When parsing, the next bit is read and stored in the associated data
- * struct. 0 means FALSE, 1 means TRUE, The current read pointer
- * is moved 1 bit forward afterwards
- */
- FLAG,
- /**
- * Representating a length field
- *
- * When generating it must be changed from host to network order.
- * The value is read from the associated data struct.
- * The current write position is moved 32 bit forward afterwards.
- *
- * When parsing it must be changed from network to host order.
- * The value is written to the associated data struct.
- * The current read pointer is moved 32 bit forward afterwards.
- */
- LENGTH,
- /**
- * Representating a spi size field
- *
- * When generating it must be changed from host to network order.
- * The value is read from the associated data struct.
- * The current write position is moved 32 bit forward afterwards.
- *
- * When parsing it must be changed from network to host order.
- * The value is written to the associated data struct.
- * The current read pointer is moved 32 bit forward afterwards.
- */
- SPI_SIZE
-};
-
-/**
- * An encoding rule is a mapping of a specific encoding type to
- * a location in the data struct where the current field is stored to
- * or read from.
- *
- * For examples see directory encodings/.
- *
- * This rules are used by parser and generator.
- */
-typedef struct encoding_rule_s encoding_rule_t;
-
-struct encoding_rule_s{
- /**
- * Encoding type
- */
- encoding_type_t type;
- /**
- * Offset in the data struct
- *
- * When parsing, data are written to this offset of the
- * data struct.
- *
- * When generating, data are read from this offset in the
- * data struct.
- */
- u_int32_t offset;
-};
-
-
-/**
- * Payload-Types of a IKEv2-Message
- *
- *
- * Header and substructures are also defined as
- * payload types with values from PRIVATE USE space.
- */
-typedef enum payload_type_e payload_type_t;
-
-enum payload_type_e{
-
- /**
- * NO_PAYLOAD
- */
- NO_PAYLOAD = 0,
-
- /**
- * SA
- */
- SECURITY_ASSOCIATION = 33,
- /**
- * KE
- */
- KEY_EXCHANGE = 34,
- /**
- * IDi
- */
- ID_INITIATOR = 35,
- /**
- * IDr
- */
- ID_RESPONDER = 36,
- /**
- * CERT
- */
- CERTIFICATE = 37,
- /**
- * CERTREQ
- */
- CERTIFICATE_REQUEST = 38,
- /**
- * AUTH
- */
- AUTHENTICATION = 39,
- /**
- * Ni, Nr
- */
- NONCE = 40,
- /**
- * N
- */
- NOTIFY = 41,
- /**
- * D
- */
- DELETE = 42,
- /**
- * V
- */
- VENDOR_ID = 43,
- /**
- * TSi
- */
- TRAFFIC_SELECTOR_INITIATOR = 44,
- /**
- * TSr
- */
- TRAFFIC_SELECTOR_RESPONDER = 45,
- /**
- * E
- */
- ENCRYPTED = 46,
- /**
- * CP
- */
- CONFIGURATION = 47,
- /**
- * EAP
- */
- EXTENSIBLE_AUTHENTICATION = 48,
-
- /**
- * Header has value 140 of PRIVATE USE space
- *
- * This payload type is not send over wire and just
- * used internally to handle IKEv2-Header like a payload.
- */
- HEADER = 140
-};
-
-
-/*
- * build string mapping array for payload_type_t
- */
-extern mapping_t payload_type_t_mappings[];
-
-/**
- * Information of a specific payload are stored in this struct
- *
- * The following informations are needed for each payload
- * - payload type
- * - length of its associated data struct in bytes
- * - encoding rules array
- * - encoding rules count
- */
-typedef struct payload_info_s payload_info_t;
-
-struct payload_info_s{
- /**
- * Type of payload
- */
- payload_type_t payload_type;
- /**
- * Length of associated data struct in bytes
- */
- size_t data_struct_length;
-
- /**
- * Pointer to the encoding rules array
- */
- encoding_rule_t *ecoding_rules;
-
- /**
- * Number of encoding rules for the specific payload_type
- */
- size_t encoding_rules_count;
-};
-
-#endif /*ENCODINGS_H_*/
+++ /dev/null
-/**
- * @file ike_header.c
- *
- * @brief Definition of the encoding rules used when parsing or generating
- * an IKEv2-Header
- *
- */
-
-/*
- * 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.
- */
-
-/* offsetof macro */
-#include <stddef.h>
-
- #include "encodings.h"
- #include "ike_header.h"
-
-/**
- * Encoding rules to parse or generate a IKEv2-Header
- *
- * The defined offsets are the positions in a struct of type
- * ike_header_t.
- *
- */
-encoding_rule_t ike_header_encodings[] = {
- /* 8 Byte SPI, stored in the field initiator_spi */
- { U_INT_64, offsetof(ike_header_t, initiator_spi) },
- /* 8 Byte SPI, stored in the field responder_spi */
- { U_INT_64, offsetof(ike_header_t, responder_spi) },
- /* 1 Byte next payload type, stored in the field next_payload */
- { U_INT_8, offsetof(ike_header_t, next_payload) },
- /* 4 Bit major version, stored in the field maj_version */
- { U_INT_4, offsetof(ike_header_t, maj_version) },
- /* 4 Bit minor version, stored in the field min_version */
- { U_INT_4, offsetof(ike_header_t, min_version) },
- /* 8 Bit for the exchange type */
- { U_INT_8, offsetof(ike_header_t, exchange_type) },
- /* 2 Bit reserved bits, nowhere stored */
- { RESERVED_BIT, 0 },
- { RESERVED_BIT, 0 },
- /* 3 Bit flags, stored in the fields response, version and initiator */
- { FLAG, offsetof(ike_header_t, flags.response) },
- { FLAG, offsetof(ike_header_t, flags.version) },
- { FLAG, offsetof(ike_header_t, flags.initiator) },
- /* 3 Bit reserved bits, nowhere stored */
- { RESERVED_BIT, 0 },
- { RESERVED_BIT, 0 },
- { RESERVED_BIT, 0 },
- /* 4 Byte message id, stored in the field message_id */
- { U_INT_32, offsetof(ike_header_t, message_id) },
- /* 4 Byte length fied, stored in the field length */
- { LENGTH, offsetof(ike_header_t, length) }
-};
-
-/**
- * This informations are needed for autmatic parsing of header content
- */
-payload_info_t ike_header_info = {HEADER,
- sizeof(ike_header_t),
- ike_header_encodings,
- (sizeof(ike_header_encodings)/sizeof(encoding_rule_t))};
+++ /dev/null
-/**
- * @file ike_header.h
- *
- * @brief Declaration of the data struct ike_header_t.
- *
- * The data of a parsed header are stored in a struct of this type.
- *
- */
-
-/*
- * 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_HEADER_H_
-#define IKE_HEADER_H_
-
-#include "../types.h"
-
-/**
- * Data structure to hold the data of an IKEv2-Header
- *
- * The header format of an IKEv2-Message is compatible to the
- * ISAKMP-Header format to allow implementations supporting
- * both versions of the IKE-protocol.
- *
- */
-typedef struct ike_header_s ike_header_t;
-
-struct ike_header_s{
- /**
- * SPI of the initiator
- */
- u_int64_t initiator_spi;
- /**
- * SPI of the responder
- */
- u_int64_t responder_spi;
- /**
- * next payload type
- */
- u_int8_t next_payload;
- /**
- * IKE major version
- */
- u_int8_t maj_version;
-
- /**
- * IKE minor version
- */
- u_int8_t min_version;
-
- /**
- * Exchange type
- */
- u_int8_t exchange_type;
-
- /**
- * Flags of the Message
- *
- */
- struct {
- /**
- * Sender is initiator of the associated IKE_SA_INIT-Exchange
- */
- bool initiator;
- /**
- * is protocol supporting higher version?
- */
- bool version;
- /**
- * TRUE, if this is a response, FALSE if its a Request
- */
- bool response;
- } flags;
- /**
- * Associated Message-ID
- */
- u_int32_t message_id;
- /**
- * Length of the whole IKEv2-Message (header and all payloads)
- */
- u_int32_t length;
-};
-
-#endif /*IKE_HEADER_H_*/
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