denozord/strongswan-ext
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Migrated transform_substructure to INIT/METHOD macros

Browse Source
This commit is contained in:
Martin Willi
2011-01-05 16:45:51 +01:00
parent 6844c156fc
commit 9f8ecff2e2
2 changed files with 100 additions and 253 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/libcharon/encoding/payloads/transform_substructure.c
+91 -197
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
*
@@ -24,14 +25,13 @@
#include <utils/linked_list.h>
#include <daemon.h>
typedef struct private_transform_substructure_t private_transform_substructure_t;
/**
* Private data of an transform_substructure_t object.
*
*/
struct private_transform_substructure_t {
/**
* Public transform_substructure_t interface.
*/
@@ -42,13 +42,11 @@ struct private_transform_substructure_t {
*/
u_int8_t next_payload;
/**
* Length of this payload.
*/
u_int16_t transform_length;
/**
* Type of the transform.
*/
@@ -65,30 +63,28 @@ struct private_transform_substructure_t {
linked_list_t *attributes;
};
/**
* Encoding rules to parse or generate a Transform substructure.
*
* The defined offsets are the positions in a object of type
* private_transform_substructure_t.
*
*/
encoding_rule_t transform_substructure_encodings[] = {
/* 1 Byte next payload type, stored in the field next_payload */
{ U_INT_8, offsetof(private_transform_substructure_t, next_payload) },
{ U_INT_8, offsetof(private_transform_substructure_t, next_payload) },
/* Reserved Byte is skipped */
{ RESERVED_BYTE, 0 },
{ RESERVED_BYTE, 0 },
/* Length of the whole transform substructure*/
{ PAYLOAD_LENGTH, offsetof(private_transform_substructure_t, transform_length) },
{ PAYLOAD_LENGTH, offsetof(private_transform_substructure_t, transform_length)},
/* transform type is a number of 8 bit */
{ U_INT_8, offsetof(private_transform_substructure_t, transform_type) },
{ U_INT_8, offsetof(private_transform_substructure_t, transform_type) },
/* Reserved Byte is skipped */
{ RESERVED_BYTE, 0 },
{ RESERVED_BYTE, 0 },
/* tranform ID is a number of 8 bit */
{ U_INT_16, offsetof(private_transform_substructure_t, transform_id) },
{ U_INT_16, offsetof(private_transform_substructure_t, transform_id) },
/* Attributes are stored in a transform attribute,
offset points to a linked_list_t pointer */
{ TRANSFORM_ATTRIBUTES, offsetof(private_transform_substructure_t, attributes) }
{ TRANSFORM_ATTRIBUTES, offsetof(private_transform_substructure_t, attributes) }
};
/*
@@ -105,19 +101,15 @@ encoding_rule_t transform_substructure_encodings[] = {
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
/**
* Implementation of payload_t.verify.
*/
static status_t verify(private_transform_substructure_t *this)
METHOD(payload_t, verify, status_t,
private_transform_substructure_t *this)
{
status_t status = SUCCESS;
iterator_t *iterator;
payload_t *current_attributes;
enumerator_t *enumerator;
payload_t *attribute;
if ((this->next_payload != NO_PAYLOAD) && (this->next_payload != 3))
if (this->next_payload != NO_PAYLOAD && this->next_payload != 3)
{
/* must be 0 or 3 */
DBG1(DBG_ENC, "inconsistent next payload");
return FAILED;
}
@@ -138,45 +130,41 @@ static status_t verify(private_transform_substructure_t *this)
return FAILED;
}
}
iterator = this->attributes->create_iterator(this->attributes,TRUE);
while(iterator->iterate(iterator, (void**)&current_attributes))
enumerator = this->attributes->create_enumerator(this->attributes);
while (enumerator->enumerate(enumerator, &attribute))
{
status = current_attributes->verify(current_attributes);
status = attribute->verify(attribute);
if (status != SUCCESS)
{
DBG1(DBG_ENC, "TRANSFORM_ATTRIBUTE verification failed");
break;
}
}
iterator->destroy(iterator);
enumerator->destroy(enumerator);
/* proposal number is checked in SA payload */
return status;
}
/**
* Implementation of payload_t.get_encoding_rules.
*/
static void get_encoding_rules(private_transform_substructure_t *this, encoding_rule_t **rules, size_t *rule_count)
METHOD(payload_t, get_encoding_rules, void,
private_transform_substructure_t *this, encoding_rule_t **rules,
size_t *rule_count)
{
*rules = transform_substructure_encodings;
*rule_count = sizeof(transform_substructure_encodings) / sizeof(encoding_rule_t);
*rule_count = countof(transform_substructure_encodings);
}
/**
* Implementation of payload_t.get_type.
*/
static payload_type_t get_type(private_transform_substructure_t *this)
METHOD(payload_t, get_type, payload_type_t,
private_transform_substructure_t *this)
{
return TRANSFORM_SUBSTRUCTURE;
}
/**
* Implementation of payload_t.get_next_type.
*/
static payload_type_t get_next_type(private_transform_substructure_t *this)
METHOD(payload_t, get_next_type, payload_type_t,
private_transform_substructure_t *this)
{
return (this->next_payload);
return this->next_payload;
}
/**
@@ -184,153 +172,69 @@ static payload_type_t get_next_type(private_transform_substructure_t *this)
*/
static void compute_length (private_transform_substructure_t *this)
{
iterator_t *iterator;
payload_t *current_attribute;
size_t length = TRANSFORM_SUBSTRUCTURE_HEADER_LENGTH;
enumerator_t *enumerator;
payload_t *attribute;
iterator = this->attributes->create_iterator(this->attributes,TRUE);
while (iterator->iterate(iterator, (void**)&current_attribute))
this->transform_length = TRANSFORM_SUBSTRUCTURE_HEADER_LENGTH;
enumerator = this->attributes->create_enumerator(this->attributes);
while (enumerator->enumerate(enumerator, &attribute))
{
length += current_attribute->get_length(current_attribute);
this->transform_length += attribute->get_length(attribute);
}
iterator->destroy(iterator);
this->transform_length = length;
enumerator->destroy(enumerator);
}
/**
* Implementation of payload_t.get_length.
*/
static size_t get_length(private_transform_substructure_t *this)
METHOD(payload_t, get_length, size_t,
private_transform_substructure_t *this)
{
return this->transform_length;
}
/**
* Implementation of transform_substructure_t.create_transform_attribute_iterator.
*/
static iterator_t *create_transform_attribute_iterator (private_transform_substructure_t *this,bool forward)
METHOD(transform_substructure_t, set_is_last_transform, void,
private_transform_substructure_t *this, bool is_last)
{
return this->attributes->create_iterator(this->attributes,forward);
this->next_payload = is_last ? 0: TRANSFORM_TYPE_VALUE;
}
/**
* Implementation of transform_substructure_t.add_transform_attribute.
*/
static void add_transform_attribute (private_transform_substructure_t *this,transform_attribute_t *attribute)
{
this->attributes->insert_last(this->attributes,(void *) attribute);
compute_length(this);
}
/**
* Implementation of transform_substructure_t.set_is_last_transform.
*/
static void set_is_last_transform (private_transform_substructure_t *this, bool is_last)
{
this->next_payload = (is_last) ? 0: TRANSFORM_TYPE_VALUE;
}
/**
* Implementation of transform_substructure_t.get_is_last_transform.
*/
static bool get_is_last_transform (private_transform_substructure_t *this)
{
return ((this->next_payload == TRANSFORM_TYPE_VALUE) ? FALSE : TRUE);
}
/**
* Implementation of payload_t.set_next_type.
*/
static void set_next_type(private_transform_substructure_t *this,payload_type_t type)
METHOD(payload_t, set_next_type, void,
private_transform_substructure_t *this,payload_type_t type)
{
}
/**
* Implementation of transform_substructure_t.set_transform_type.
*/
static void set_transform_type (private_transform_substructure_t *this,u_int8_t type)
{
this->transform_type = type;
}
/**
* Implementation of transform_substructure_t.get_transform_type.
*/
static u_int8_t get_transform_type (private_transform_substructure_t *this)
METHOD(transform_substructure_t, get_transform_type, u_int8_t,
private_transform_substructure_t *this)
{
return this->transform_type;
}
/**
* Implementation of transform_substructure_t.set_transform_id.
*/
static void set_transform_id (private_transform_substructure_t *this,u_int16_t id)
{
this->transform_id = id;
}
/**
* Implementation of transform_substructure_t.get_transform_id.
*/
static u_int16_t get_transform_id (private_transform_substructure_t *this)
METHOD(transform_substructure_t, get_transform_id, u_int16_t,
private_transform_substructure_t *this)
{
return this->transform_id;
}
/**
* Implementation of transform_substructure_t.clone.
*/
static transform_substructure_t *clone_(private_transform_substructure_t *this)
METHOD(transform_substructure_t, get_key_length, status_t,
private_transform_substructure_t *this, u_int16_t *key_length)
{
private_transform_substructure_t *clone;
iterator_t *attributes;
transform_attribute_t *current_attribute;
enumerator_t *enumerator;
transform_attribute_t *attribute;
clone = (private_transform_substructure_t *) transform_substructure_create();
clone->next_payload = this->next_payload;
clone->transform_type = this->transform_type;
clone->transform_id = this->transform_id;
attributes = this->attributes->create_iterator(this->attributes, FALSE);
while (attributes->iterate(attributes, (void**)&current_attribute))
enumerator = this->attributes->create_enumerator(this->attributes);
while (enumerator->enumerate(enumerator, &attribute))
{
current_attribute = current_attribute->clone(current_attribute);
clone->public.add_transform_attribute(&clone->public, current_attribute);
}
attributes->destroy(attributes);
return &clone->public;
}
/**
* Implementation of transform_substructure_t.get_key_length.
*/
static status_t get_key_length(private_transform_substructure_t *this, u_int16_t *key_length)
{
iterator_t *attributes;
transform_attribute_t *current_attribute;
attributes = this->attributes->create_iterator(this->attributes, TRUE);
while (attributes->iterate(attributes, (void**)&current_attribute))
{
if (current_attribute->get_attribute_type(current_attribute) == KEY_LENGTH)
if (attribute->get_attribute_type(attribute) == KEY_LENGTH)
{
*key_length = current_attribute->get_value(current_attribute);
attributes->destroy(attributes);
*key_length = attribute->get_value(attribute);
enumerator->destroy(enumerator);
return SUCCESS;
}
}
attributes->destroy(attributes);
enumerator->destroy(enumerator);
return FAILED;
}
/**
* Implementation of transform_substructure_t.destroy and payload_t.destroy.
*/
static void destroy(private_transform_substructure_t *this)
METHOD2(payload_t, transform_substructure_t, destroy, void,
private_transform_substructure_t *this)
{
this->attributes->destroy_offset(this->attributes,
offsetof(transform_attribute_t, destroy));
@@ -342,60 +246,50 @@ static void destroy(private_transform_substructure_t *this)
*/
transform_substructure_t *transform_substructure_create()
{
private_transform_substructure_t *this = malloc_thing(private_transform_substructure_t);
private_transform_substructure_t *this;
/* payload interface */
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.create_transform_attribute_iterator = (iterator_t * (*) (transform_substructure_t *,bool)) create_transform_attribute_iterator;
this->public.add_transform_attribute = (void (*) (transform_substructure_t *,transform_attribute_t *)) add_transform_attribute;
this->public.set_is_last_transform = (void (*) (transform_substructure_t *,bool)) set_is_last_transform;
this->public.get_is_last_transform = (bool (*) (transform_substructure_t *)) get_is_last_transform;
this->public.set_transform_type = (void (*) (transform_substructure_t *,u_int8_t)) set_transform_type;
this->public.get_transform_type = (u_int8_t (*) (transform_substructure_t *)) get_transform_type;
this->public.set_transform_id = (void (*) (transform_substructure_t *,u_int16_t)) set_transform_id;
this->public.get_transform_id = (u_int16_t (*) (transform_substructure_t *)) get_transform_id;
this->public.get_key_length = (status_t (*) (transform_substructure_t *,u_int16_t *)) get_key_length;
this->public.clone = (transform_substructure_t* (*) (transform_substructure_t *)) clone_;
this->public.destroy = (void (*) (transform_substructure_t *)) destroy;
/* set default values of the fields */
this->next_payload = NO_PAYLOAD;
this->transform_length = TRANSFORM_SUBSTRUCTURE_HEADER_LENGTH;
this->transform_id = 0;
this->transform_type = 0;
this->attributes = linked_list_create();
return (&(this->public));
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,
},
.set_is_last_transform = _set_is_last_transform,
.get_transform_type = _get_transform_type,
.get_transform_id = _get_transform_id,
.get_key_length = _get_key_length,
.destroy = _destroy,
},
.next_payload = NO_PAYLOAD,
.transform_length = TRANSFORM_SUBSTRUCTURE_HEADER_LENGTH,
.attributes = linked_list_create(),
);
return &this->public;
}
/*
* Described in header
*/
transform_substructure_t *transform_substructure_create_type(
transform_type_t transform_type,
u_int16_t transform_id, u_int16_t key_length)
transform_type_t type, u_int16_t id, u_int16_t key_length)
{
transform_substructure_t *transform = transform_substructure_create();
private_transform_substructure_t *this;
transform->set_transform_type(transform,transform_type);
transform->set_transform_id(transform,transform_id);
this = (private_transform_substructure_t*)transform_substructure_create();
this->transform_type = type;
this->transform_id = id;
if (key_length)
{
transform_attribute_t *attribute;
attribute = transform_attribute_create_key_length(key_length);
transform->add_transform_attribute(transform, attribute);
this->attributes->insert_last(this->attributes,
(void*)transform_attribute_create_key_length(key_length));
compute_length(this);
}
return transform;
return &this->public;
}
src/libcharon/encoding/payloads/transform_substructure.h
+9 -56
View File
@@ -34,7 +34,6 @@ typedef struct transform_substructure_t transform_substructure_t;
#include <crypto/crypters/crypter.h>
#include <config/proposal.h>
/**
* IKEv1 Value for a transform payload.
*/
@@ -45,31 +44,18 @@ typedef struct transform_substructure_t transform_substructure_t;
*/
#define TRANSFORM_SUBSTRUCTURE_HEADER_LENGTH 8
/**
* Class representing an IKEv2- TRANSFORM SUBSTRUCTURE.
*
* The TRANSFORM SUBSTRUCTURE format is described in RFC section 3.3.2.
*/
struct transform_substructure_t {
/**
* The payload_t interface.
*/
payload_t payload_interface;
/**
* Creates an iterator of stored transform_attribute_t objects.
*
* When deleting an transform attribute using this iterator,
* the length of this transform substructure has to be refreshed
* by calling get_length().
*
* @param forward iterator direction (TRUE: front to end)
* @return created iterator_t object.
*/
iterator_t * (*create_transform_attribute_iterator) (
transform_substructure_t *this, bool forward);
/**
* Adds a transform_attribute_t object to this object.
*
@@ -88,20 +74,6 @@ struct transform_substructure_t {
*/
void (*set_is_last_transform) (transform_substructure_t *this, bool is_last);
/**
* Checks if this is the last transform.
*
* @return TRUE if this is the last Transform, FALSE otherwise
*/
bool (*get_is_last_transform) (transform_substructure_t *this);
/**
* Sets transform type of the current transform substructure.
*
* @param type type value to set
*/
void (*set_transform_type) (transform_substructure_t *this, u_int8_t type);
/**
* get transform type of the current transform.
*
@@ -110,21 +82,14 @@ struct transform_substructure_t {
u_int8_t (*get_transform_type) (transform_substructure_t *this);
/**
* Sets transform id of the current transform substructure.
*
* @param id transform id to set
*/
void (*set_transform_id) (transform_substructure_t *this, u_int16_t id);
/**
* get transform id of the current transform.
* Get transform id of the current transform.
*
* @return Transform id of current transform substructure.
*/
u_int16_t (*get_transform_id) (transform_substructure_t *this);
/**
* get transform id of the current transform.
* Get transform id of the current transform.
*
* @param key_length The key length is written to this location
* @return
@@ -135,13 +100,6 @@ struct transform_substructure_t {
status_t (*get_key_length) (transform_substructure_t *this,
u_int16_t *key_length);
/**
* Clones an transform_substructure_t object.
*
* @return cloned transform_substructure_t object
*/
transform_substructure_t* (*clone) (transform_substructure_t *this);
/**
* Destroys an transform_substructure_t object.
*/
@@ -151,24 +109,19 @@ struct transform_substructure_t {
/**
* Creates an empty transform_substructure_t object.
*
* @return created transform_substructure_t object
* @return created transform_substructure_t object
*/
transform_substructure_t *transform_substructure_create(void);
/**
* Creates an empty transform_substructure_t object.
*
* The key length is used for the transport types ENCRYPTION_ALGORITHM,
* PSEUDO_RANDOM_FUNCTION, INTEGRITY_ALGORITHM. For all
* other transport types the key_length parameter is not used
*
* @param transform_type type of transform to create
* @param transform_id transform id specifying the specific algorithm of a transform type
* @param key_length Key length for key lenght attribute
* @return transform_substructure_t object
* @param type type of transform to create
* @param id transform id specifc for the transform type
* @param key_length key length for key lenght attribute, 0 to omit
* @return transform_substructure_t object
*/
transform_substructure_t *transform_substructure_create_type(
transform_type_t transform_type, u_int16_t transform_id,
u_int16_t key_length);
transform_type_t type, u_int16_t id, u_int16_t key_length);
#endif /** TRANSFORM_SUBSTRUCTURE_H_ @}*/