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Migrated ke_payload to INIT/METHOD macros

This commit is contained in:
Martin Willi 2010-11-24 11:37:34 +01:00
parent ffb980572f
commit 19ee0762e7
2 changed files with 60 additions and 118 deletions
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164
src/libcharon/encoding/payloads/ke_payload.c
View File

@ -1,5 +1,6 @@
/*
* Copyright (C) 2005-2006 Martin Willi
* Copyright (C) 2005-2010 Martin Willi
* Copyright (C) 2010 revosec AG
* Copyright (C) 2005 Jan Hutter
* Hochschule fuer Technik Rapperswil
*
@ -20,14 +21,13 @@
#include <encoding/payloads/encodings.h>
typedef struct private_ke_payload_t private_ke_payload_t;
/**
* Private data of an ke_payload_t object.
*
*/
struct private_ke_payload_t {
/**
* Public ke_payload_t interface.
*/
@ -64,27 +64,26 @@ struct private_ke_payload_t {
*
* The defined offsets are the positions in a object of type
* private_ke_payload_t.
*
*/
encoding_rule_t ke_payload_encodings[] = {
/* 1 Byte next payload type, stored in the field next_payload */
{ U_INT_8, offsetof(private_ke_payload_t, next_payload) },
{ U_INT_8, offsetof(private_ke_payload_t, next_payload) },
/* the critical bit */
{ FLAG, offsetof(private_ke_payload_t, critical) },
{ FLAG, offsetof(private_ke_payload_t, critical) },
/* 7 Bit reserved bits, nowhere stored */
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
{ RESERVED_BIT, 0 },
/* Length of the whole payload*/
{ PAYLOAD_LENGTH, offsetof(private_ke_payload_t, payload_length) },
{ PAYLOAD_LENGTH, offsetof(private_ke_payload_t, payload_length) },
/* DH Group number as 16 bit field*/
{ U_INT_16, offsetof(private_ke_payload_t, dh_group_number) },
{ RESERVED_BYTE, 0 },
{ RESERVED_BYTE, 0 },
{ U_INT_16, offsetof(private_ke_payload_t, dh_group_number) },
{ RESERVED_BYTE, 0 },
{ RESERVED_BYTE, 0 },
/* Key Exchange Data is from variable size */
{ KEY_EXCHANGE_DATA, offsetof(private_ke_payload_t, key_exchange_data)}
};
@ -103,104 +102,60 @@ encoding_rule_t ke_payload_encodings[] = {
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
/**
* Implementation of payload_t.verify.
*/
static status_t verify(private_ke_payload_t *this)
METHOD(payload_t, verify, status_t,
private_ke_payload_t *this)
{
/* dh group is not verified in here */
return SUCCESS;
}
/**
* Implementation of payload_t.destroy.
*/
static void destroy(private_ke_payload_t *this)
{
if (this->key_exchange_data.ptr != NULL)
{
free(this->key_exchange_data.ptr);
}
free(this);
}
/**
* Implementation of payload_t.get_encoding_rules.
*/
static void get_encoding_rules(private_ke_payload_t *this, encoding_rule_t **rules, size_t *rule_count)
METHOD(payload_t, get_encoding_rules, void,
private_ke_payload_t *this, encoding_rule_t **rules, size_t *rule_count)
{
*rules = ke_payload_encodings;
*rule_count = sizeof(ke_payload_encodings) / sizeof(encoding_rule_t);
*rule_count = countof(ke_payload_encodings);
}
/**
* Implementation of payload_t.get_type.
*/
static payload_type_t get_type(private_ke_payload_t *this)
METHOD(payload_t, get_type, payload_type_t,
private_ke_payload_t *this)
{
return KEY_EXCHANGE;
}
/**
* Implementation of payload_t.get_next_type.
*/
static payload_type_t get_next_type(private_ke_payload_t *this)
METHOD(payload_t, get_next_type, payload_type_t,
private_ke_payload_t *this)
{
return this->next_payload;
}
/**
* Implementation of payload_t.set_next_type.
*/
static void set_next_type(private_ke_payload_t *this,payload_type_t type)
METHOD(payload_t, set_next_type, void,
private_ke_payload_t *this,payload_type_t type)
{
this->next_payload = type;
}
/**
* recompute the length of the payload.
*/
static void compute_length(private_ke_payload_t *this)
{
size_t length = KE_PAYLOAD_HEADER_LENGTH;
if (this->key_exchange_data.ptr != NULL)
{
length += this->key_exchange_data.len;
}
this->payload_length = length;
}
/**
* Implementation of payload_t.get_length.
*/
static size_t get_length(private_ke_payload_t *this)
METHOD(payload_t, get_length, size_t,
private_ke_payload_t *this)
{
return this->payload_length;
}
/**
* Implementation of ke_payload_t.get_key_exchange_data.
*/
static chunk_t get_key_exchange_data(private_ke_payload_t *this)
METHOD(ke_payload_t, get_key_exchange_data, chunk_t,
private_ke_payload_t *this)
{
return this->key_exchange_data;
}
/**
* Implementation of ke_payload_t.get_dh_group_number.
*/
static diffie_hellman_group_t get_dh_group_number(private_ke_payload_t *this)
METHOD(ke_payload_t, get_dh_group_number, diffie_hellman_group_t,
private_ke_payload_t *this)
{
return this->dh_group_number;
}
/**
* Implementation of ke_payload_t.set_dh_group_number.
*/
static void set_dh_group_number(private_ke_payload_t *this, diffie_hellman_group_t dh_group_number)
METHOD2(payload_t, ke_payload_t, destroy, void,
private_ke_payload_t *this)
{
this->dh_group_number = dh_group_number;
free(this->key_exchange_data.ptr);
free(this);
}
/*
@ -208,30 +163,27 @@ static void set_dh_group_number(private_ke_payload_t *this, diffie_hellman_group
*/
ke_payload_t *ke_payload_create()
{
private_ke_payload_t *this = malloc_thing(private_ke_payload_t);
/* interface functions */
this->public.payload_interface.verify = (status_t (*) (payload_t *))verify;
this->public.payload_interface.get_encoding_rules = (void (*) (payload_t *, encoding_rule_t **, size_t *) ) get_encoding_rules;
this->public.payload_interface.get_length = (size_t (*) (payload_t *)) get_length;
this->public.payload_interface.get_next_type = (payload_type_t (*) (payload_t *)) get_next_type;
this->public.payload_interface.set_next_type = (void (*) (payload_t *,payload_type_t)) set_next_type;
this->public.payload_interface.get_type = (payload_type_t (*) (payload_t *)) get_type;
this->public.payload_interface.destroy = (void (*) (payload_t *))destroy;
/* public functions */
this->public.get_key_exchange_data = (chunk_t (*) (ke_payload_t *)) get_key_exchange_data;
this->public.get_dh_group_number = (diffie_hellman_group_t (*) (ke_payload_t *)) get_dh_group_number;
this->public.set_dh_group_number =(void (*) (ke_payload_t *,diffie_hellman_group_t)) set_dh_group_number;
this->public.destroy = (void (*) (ke_payload_t *)) destroy;
/* set default values of the fields */
this->critical = FALSE;
this->next_payload = NO_PAYLOAD;
this->payload_length = KE_PAYLOAD_HEADER_LENGTH;
this->key_exchange_data = chunk_empty;
this->dh_group_number = MODP_NONE;
private_ke_payload_t *this;
INIT(this,
.public = {
.payload_interface = {
.verify = _verify,
.get_encoding_rules = _get_encoding_rules,
.get_length = _get_length,
.get_next_type = _get_next_type,
.set_next_type = _set_next_type,
.get_type = _get_type,
.destroy = _destroy,
},
.get_key_exchange_data = _get_key_exchange_data,
.get_dh_group_number = _get_dh_group_number,
.destroy = _destroy,
},
.next_payload = NO_PAYLOAD,
.payload_length = KE_PAYLOAD_HEADER_LENGTH,
.dh_group_number = MODP_NONE,
);
return &this->public;
}
@ -244,7 +196,7 @@ ke_payload_t *ke_payload_create_from_diffie_hellman(diffie_hellman_t *dh)
dh->get_my_public_value(dh, &this->key_exchange_data);
this->dh_group_number = dh->get_dh_group(dh);
compute_length(this);
this->payload_length = this->key_exchange_data.len + KE_PAYLOAD_HEADER_LENGTH;
return &this->public;
}

14
src/libcharon/encoding/payloads/ke_payload.h
View File

@ -47,11 +47,9 @@ struct ke_payload_t {
payload_t payload_interface;
/**
* Returns the currently set key exchange data of this KE payload.
* Returns the key exchange data of this KE payload.
*
* @warning Returned data are not copied.
*
* @return chunk_t pointing to the value
* @return chunk_t pointing to internal data
*/
chunk_t (*get_key_exchange_data) (ke_payload_t *this);
@ -62,14 +60,6 @@ struct ke_payload_t {
*/
diffie_hellman_group_t (*get_dh_group_number) (ke_payload_t *this);
/**
* Sets the Diffie-Hellman Group Number of this KE payload.
*
* @param dh_group_number DH Group to set
*/
void (*set_dh_group_number) (ke_payload_t *this,
diffie_hellman_group_t dh_group_number);
/**
* Destroys an ke_payload_t object.
*/