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DELETE payload implemented and tested

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This commit is contained in:
Jan Hutter
2005-12-05 13:43:43 +00:00
parent 510c342634
commit 9bdd74eae7
14 changed files with 642 additions and 5 deletions
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Source/charon/encoding/payloads/delete_payload.c
+327
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/**
* @file delete_payload.c
*
* @brief Implementation of delete_payload_t.
*
*/
/*
* 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 "delete_payload.h"
#include <utils/allocator.h>
typedef struct private_delete_payload_t private_delete_payload_t;
/**
* Private data of an delete_payload_t object.
*
*/
struct private_delete_payload_t {
/**
* Public delete_payload_t interface.
*/
delete_payload_t public;
/**
* Next payload type.
*/
u_int8_t next_payload;
/**
* Critical flag.
*/
bool critical;
/**
* Length of this payload.
*/
u_int16_t payload_length;
/**
* Protocol ID.
*/
u_int8_t protocol_id;
/**
* SPI Size.
*/
u_int8_t spi_size;
/**
* Number of SPI's.
*/
u_int16_t spi_count;
/**
* The contained SPI's.
*/
chunk_t spis;
};
/**
* Encoding rules to parse or generate a DELETE payload
*
* The defined offsets are the positions in a object of type
* private_delete_payload_t.
*
*/
encoding_rule_t delete_payload_encodings[] = {
/* 1 Byte next payload type, stored in the field next_payload */
{ U_INT_8, offsetof(private_delete_payload_t, next_payload) },
/* the critical bit */
{ FLAG, offsetof(private_delete_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 },
/* Length of the whole payload*/
{ PAYLOAD_LENGTH, offsetof(private_delete_payload_t, payload_length)},
{ U_INT_8, offsetof(private_delete_payload_t, protocol_id) },
{ U_INT_8, offsetof(private_delete_payload_t, spi_size) },
{ U_INT_16, offsetof(private_delete_payload_t, spi_count) },
/* some delete data bytes, length is defined in PAYLOAD_LENGTH */
{ SPIS, offsetof(private_delete_payload_t, spis) }
};
/*
1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! Next Payload !C! RESERVED ! Payload Length !
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! Protocol ID ! SPI Size ! # of SPIs !
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! !
~ Security Parameter Index(es) (SPI) ~
! !
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
/**
* Implementation of payload_t.verify.
*/
static status_t verify(private_delete_payload_t *this)
{
if (this->critical)
{
/* critical bit is set! */
return FAILED;
}
if ((this->protocol_id == 0) ||
(this->protocol_id > 3))
{
/* reserved IDs */
return FAILED;
}
if (this->spis.len != (this->spi_count * this->spi_size))
{
return FAILED;
}
if ((this->protocol_id == IKE) && (this->spis.len != 0))
{
/* IKE deletion has no spi assigned! */
return FAILED;
}
return SUCCESS;
}
/**
* Implementation of delete_payload_t.get_encoding_rules.
*/
static void get_encoding_rules(private_delete_payload_t *this, encoding_rule_t **rules, size_t *rule_count)
{
*rules = delete_payload_encodings;
*rule_count = sizeof(delete_payload_encodings) / sizeof(encoding_rule_t);
}
/**
* Implementation of payload_t.get_type.
*/
static payload_type_t get_payload_type(private_delete_payload_t *this)
{
return DELETE;
}
/**
* Implementation of payload_t.get_next_type.
*/
static payload_type_t get_next_type(private_delete_payload_t *this)
{
return (this->next_payload);
}
/**
* Implementation of payload_t.set_next_type.
*/
static void set_next_type(private_delete_payload_t *this,payload_type_t type)
{
this->next_payload = type;
}
/**
* Implementation of payload_t.get_length.
*/
static size_t get_length(private_delete_payload_t *this)
{
return this->payload_length;
}
/**
* Implementation of delete_payload_t.set_protocol_id.
*/
static void set_protocol_id (private_delete_payload_t *this, protocol_id_t protocol_id)
{
this->protocol_id = protocol_id;
}
/**
* Implementation of delete_payload_t.get_protocol_id.
*/
static protocol_id_t get_protocol_id (private_delete_payload_t *this)
{
return (this->protocol_id);
}
/**
* Implementation of delete_payload_t.set_spi_size.
*/
static void set_spi_size (private_delete_payload_t *this, u_int8_t spi_size)
{
this->spi_size = spi_size;
}
/**
* Implementation of delete_payload_t.get_spi_size.
*/
static u_int8_t get_spi_size (private_delete_payload_t *this)
{
return (this->spi_size);
}
/**
* Implementation of delete_payload_t.set_spi_count.
*/
static void set_spi_count (private_delete_payload_t *this, u_int16_t spi_count)
{
this->spi_count = spi_count;
}
/**
* Implementation of delete_payload_t.get_spi_count.
*/
static u_int16_t get_spi_count (private_delete_payload_t *this)
{
return (this->spi_count);
}
/**
* Implementation of delete_payload_t.set_spis.
*/
static void set_spis (private_delete_payload_t *this, chunk_t spis)
{
if (this->spis.ptr != NULL)
{
allocator_free_chunk(&(this->spis));
}
this->spis.ptr = allocator_clone_bytes(spis.ptr,spis.len);
this->spis.len = spis.len;
this->payload_length = DELETE_PAYLOAD_HEADER_LENGTH + this->spis.len;
}
/**
* Implementation of delete_payload_t.get_spis.
*/
static chunk_t get_spis (private_delete_payload_t *this)
{
return (this->spis);
}
/**
* Implementation of delete_payload_t.get_spis_clone.
*/
static chunk_t get_spis_clone (private_delete_payload_t *this)
{
chunk_t cloned_spis;
if (this->spis.ptr == NULL)
{
return (this->spis);
}
cloned_spis.ptr = allocator_clone_bytes(this->spis.ptr,this->spis.len);
cloned_spis.len = this->spis.len;
return cloned_spis;
}
/**
* Implementation of payload_t.destroy and delete_payload_t.destroy.
*/
static void destroy(private_delete_payload_t *this)
{
if (this->spis.ptr != NULL)
{
allocator_free_chunk(&(this->spis));
}
allocator_free(this);
}
/*
* Described in header
*/
delete_payload_t *delete_payload_create()
{
private_delete_payload_t *this = allocator_alloc_thing(private_delete_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_payload_type;
this->public.payload_interface.destroy = (void (*) (payload_t *))destroy;
/* public functions */
this->public.destroy = (void (*) (delete_payload_t *)) destroy;
this->public.set_protocol_id = (void (*) (delete_payload_t *,protocol_id_t)) set_protocol_id;
this->public.get_protocol_id = (protocol_id_t (*) (delete_payload_t *)) get_protocol_id;
this->public.set_spi_size = (void (*) (delete_payload_t *,u_int8_t)) set_spi_size;
this->public.get_spi_size = (u_int8_t (*) (delete_payload_t *)) get_spi_size;
this->public.set_spi_count = (void (*) (delete_payload_t *,u_int16_t)) set_spi_count;
this->public.get_spi_count = (u_int16_t (*) (delete_payload_t *)) get_spi_count;
this->public.set_spis = (void (*) (delete_payload_t *,chunk_t)) set_spis;
this->public.get_spis_clone = (chunk_t (*) (delete_payload_t *)) get_spis_clone;
this->public.get_spis = (chunk_t (*) (delete_payload_t *)) get_spis;
/* private variables */
this->critical = FALSE;
this->next_payload = NO_PAYLOAD;
this->payload_length =DELETE_PAYLOAD_HEADER_LENGTH;
this->protocol_id = UNDEFINED_PROTOCOL_ID;
this->spi_size = 0;
this->spi_count = 0;
this->spis = CHUNK_INITIALIZER;
return (&(this->public));
}