#include "encodings.h"
#include "../utils/allocator.h"
+typedef struct private_ike_header_s private_ike_header_t;
+
+struct private_ike_header_s {
+ /**
+ * public interface
+ */
+ ike_header_t public;
+
+ /**
+ * 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;
+};
+
+
+
/**
* Encoding rules to parse or generate a IKEv2-Header
*
*/
encoding_rule_t ike_header_encodings[] = {
/* 8 Byte SPI, stored in the field initiator_spi */
- { U_INT_64, offsetof(ike_header_t, initiator_spi) },
+ { U_INT_64, offsetof(private_ike_header_t, initiator_spi) },
/* 8 Byte SPI, stored in the field responder_spi */
- { U_INT_64, offsetof(ike_header_t, responder_spi) },
+ { U_INT_64, offsetof(private_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) },
+ { U_INT_8, offsetof(private_ike_header_t, next_payload) },
/* 4 Bit major version, stored in the field maj_version */
- { U_INT_4, offsetof(ike_header_t, maj_version) },
+ { U_INT_4, offsetof(private_ike_header_t, maj_version) },
/* 4 Bit minor version, stored in the field min_version */
- { U_INT_4, offsetof(ike_header_t, min_version) },
+ { U_INT_4, offsetof(private_ike_header_t, min_version) },
/* 8 Bit for the exchange type */
- { U_INT_8, offsetof(ike_header_t, exchange_type) },
+ { U_INT_8, offsetof(private_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) },
+ { FLAG, offsetof(private_ike_header_t, flags.response) },
+ { FLAG, offsetof(private_ike_header_t, flags.version) },
+ { FLAG, offsetof(private_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) },
+ { U_INT_32, offsetof(private_ike_header_t, message_id) },
/* 4 Byte length fied, stored in the field length */
- { HEADER_LENGTH, offsetof(ike_header_t, length) }
+ { HEADER_LENGTH, offsetof(private_ike_header_t, length) }
};
+/**
+ * Implements ike_header_t's get_initiator_spi fuction.
+ * See #ike_header_t.get_initiator_spi for description.
+ */
+static u_int64_t get_initiator_spi(private_ike_header_t *this)
+{
+ return this->initiator_spi;
+}
+
+/**
+ * Implements ike_header_t's set_initiator_spi fuction.
+ * See #ike_header_t.set_initiator_spi for description.
+ */
+static void set_initiator_spi(private_ike_header_t *this, u_int64_t initiator_spi)
+{
+ this->initiator_spi = initiator_spi;
+}
+
+/**
+ * Implements ike_header_t's get_responder_spi fuction.
+ * See #ike_header_t.get_responder_spi for description.
+ */
+static u_int64_t get_responder_spi(private_ike_header_t *this)
+{
+ return this->responder_spi;
+}
+
+/**
+ * Implements ike_header_t's set_responder_spi fuction.
+ * See #ike_header_t.set_responder_spi for description.
+ */
+static void set_responder_spi(private_ike_header_t *this, u_int64_t responder_spi)
+{
+ this->responder_spi = responder_spi;
+}
+
+/**
+ * Implements ike_header_t's get_maj_version fuction.
+ * See #ike_header_t.get_maj_version for description.
+ */
+static u_int8_t get_maj_version(private_ike_header_t *this)
+{
+ return this->maj_version;
+}
+
+/**
+ * Implements ike_header_t's get_min_version fuction.
+ * See #ike_header_t.get_min_version for description.
+ */
+static u_int8_t get_min_version(private_ike_header_t *this)
+{
+ return this->min_version;
+}
+
+/**
+ * Implements ike_header_t's get_response_flag fuction.
+ * See #ike_header_t.get_response_flag for description.
+ */
+static bool get_response_flag(private_ike_header_t *this)
+{
+ return this->flags.response;
+}
+
+/**
+ * Implements ike_header_t's get_version_flag fuction.
+ * See #ike_header_t.get_version_flag for description.
+ */
+static bool get_version_flag(private_ike_header_t *this)
+{
+ return this->flags.version;
+}
+
+/**
+ * Implements ike_header_t's get_initiator_flag fuction.
+ * See #ike_header_t.get_initiator_flag for description.
+ */
+static bool get_initiator_flag(private_ike_header_t *this)
+{
+ return this->flags.initiator;
+}
+
+/**
+ * Implements ike_header_t's get_exchange_type function
+ * See #ike_header_t.get_exchange_type for description.
+ */
+static u_int8_t get_exchange_type(private_ike_header_t *this)
+{
+ return this->exchange_type;
+}
+
+/**
+ * Implements ike_header_t's set_exchange_type function.
+ * See #ike_header_t.set_exchange_type for description.
+ */
+static void set_exchange_type(private_ike_header_t *this, u_int8_t exchange_type)
+{
+ this->exchange_type = exchange_type;
+}
+
+/**
+ * Implements ike_header_t's get_message_id function.
+ * See #ike_header_t.get_message_id for description.
+ */
+static u_int32_t get_message_id(private_ike_header_t *this)
+{
+ return this->message_id;
+}
+
+/**
+ * Implements ike_header_t's set_message_id function.
+ * See #ike_header_t.set_message_id for description.
+ */
+static void set_message_id(private_ike_header_t *this, u_int32_t message_id)
+{
+ this->message_id = message_id;
+}
/**
* Implements payload_t's and ike_header_t's destroy function.
*/
static payload_type_t get_next_type(payload_t *this)
{
- return (((ike_header_t*)this)->next_payload);
+ return (((private_ike_header_t*)this)->next_payload);
}
/**
*/
static size_t get_length(payload_t *this)
{
- return IKE_HEADER_LENGTH;
+ return (((private_ike_header_t*)this)->length);
}
/*
*/
ike_header_t *ike_header_create()
{
- ike_header_t *this = allocator_alloc_thing(ike_header_t);
+ private_ike_header_t *this = allocator_alloc_thing(private_ike_header_t);
if (this == NULL)
{
return NULL;
}
- this->payload_interface.get_encoding_rules = get_encoding_rules;
- this->payload_interface.get_length = get_length;
- this->payload_interface.get_next_type = get_next_type;
- this->payload_interface.get_type = get_type;
- this->payload_interface.destroy = (status_t (*) (payload_t *))destroy;
- this->destroy = destroy;
+ this->public.payload_interface.get_encoding_rules = get_encoding_rules;
+ this->public.payload_interface.get_length = get_length;
+ this->public.payload_interface.get_next_type = get_next_type;
+ this->public.payload_interface.get_type = get_type;
+ this->public.payload_interface.destroy = (status_t (*) (payload_t *))destroy;
+ this->public.destroy = destroy;
+
+ this->public.get_initiator_spi = (u_int64_t (*) (ike_header_t*))get_initiator_spi;
+ this->public.set_initiator_spi = (void (*) (ike_header_t*,u_int64_t))set_initiator_spi;
+ this->public.get_responder_spi = (u_int64_t (*) (ike_header_t*))get_responder_spi;
+ this->public.set_responder_spi = (void (*) (ike_header_t *,u_int64_t))set_responder_spi;
+ this->public.get_maj_version = (u_int8_t (*) (ike_header_t*))get_maj_version;
+ this->public.get_min_version = (u_int8_t (*) (ike_header_t*))get_min_version;
+ this->public.get_response_flag = (bool (*) (ike_header_t*))get_response_flag;
+ this->public.get_version_flag = (bool (*) (ike_header_t*))get_version_flag;
+ this->public.get_initiator_flag = (bool (*) (ike_header_t*))get_initiator_flag;
+ this->public.get_exchange_type = (u_int8_t (*) (ike_header_t*))get_exchange_type;
+ this->public.set_exchange_type = (void (*) (ike_header_t*,u_int8_t))set_exchange_type;
+ this->public.get_message_id = (u_int32_t (*) (ike_header_t*))get_message_id;
+ this->public.set_message_id = (void (*) (ike_header_t*,u_int32_t))set_message_id;
/* set default values of the fields */
this->initiator_spi = 0;
this->length = IKE_HEADER_LENGTH;
- return this;
+ return (ike_header_t*)this;
}
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