337 lines
9.1 KiB
C
337 lines
9.1 KiB
C
/*
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* Copyright (C) 2009-2010 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file tnet_dhcp6_option.c
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* @brief DHCPv6 Options as per RFC 3315 subclause 22.
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*
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* @author Mamadou Diop <diopmamadou(at)doubango.org>
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*
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* @date Created: Sat Nov 8 16:54:58 2009 mdiop
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*/
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#include "tnet_dhcp6_option.h"
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#include "../tnet_types.h"
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#include "../tnet_endianness.h"
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#include "tsk_memory.h"
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#include <string.h>
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tnet_dhcp6_option_t* tnet_dhcp6_option_create(tnet_dhcp6_option_code_t code, const void* payload, tsk_size_t payload_size)
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{
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return tsk_object_new(tnet_dhcp6_option_def_t, code, payload, payload_size);
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}
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tnet_dhcp6_option_identifier_t* tnet_dhcp6_option_indentifer_create(tnet_dhcp6_option_code_t code, const void* payload, tsk_size_t payload_size)
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{
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return tsk_object_new(tnet_dhcp6_option_identifier_def_t, code, payload, payload_size);
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}
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tnet_dhcp6_option_identifier_t* tnet_dhcp6_option_clientid_create(const void* payload, tsk_size_t payload_size)
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{
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return tnet_dhcp6_option_indentifer_create(dhcp6_code_clientid, payload, payload_size);
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}
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tnet_dhcp6_option_identifier_t* tnet_dhcp6_option_serverid_create(const void* payload, tsk_size_t payload_size)
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{
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return tnet_dhcp6_option_indentifer_create(dhcp6_code_serverid, payload, payload_size);
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}
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tnet_dhcp6_option_orequest_t* tnet_dhcp6_option_orequest_create(const void* payload, tsk_size_t payload_size)
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{
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return tsk_object_new(tnet_dhcp6_option_orequest_def_t, payload, payload_size);
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}
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tnet_dhcp6_option_orequest_t* tnet_dhcp6_option_orequest_create_null()
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{
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return tnet_dhcp6_option_orequest_create(tsk_null, 0);
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}
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tnet_dhcp6_option_vendorclass_t* tnet_dhcp6_option_vendorclass_create(const void* payload, tsk_size_t payload_size)
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{
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return tsk_object_new(tnet_dhcp6_option_vendorclass_def_t, payload, payload_size);
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}
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tnet_dhcp6_option_vendorclass_t* tnet_dhcp6_option_vendorclass_create_null()
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{
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return tnet_dhcp6_option_vendorclass_create(tsk_null, 0);
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}
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tnet_dhcp6_option_t* tnet_dhcp6_option_deserialize(const void* data, tsk_size_t size)
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{
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tnet_dhcp6_option_t *option = 0;
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uint8_t* dataPtr = ((uint8_t*)data);
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//uint8_t* dataEnd = (dataPtr+size);
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tnet_dhcp6_option_code_t code;
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uint16_t len;
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/* Check validity */
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if(!dataPtr || size<4/*Code Len*/){
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goto bail;
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}
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code = (tnet_dhcp6_option_code_t) tnet_ntohs_2(dataPtr);
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dataPtr += 2;
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len = tnet_ntohs_2(dataPtr);
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dataPtr += 2;
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switch(code){
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case dhcp6_code_clientid:
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case dhcp6_code_serverid:
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{
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break;
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}
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default:
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{
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break;
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}
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}
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bail:
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return option;
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}
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int tnet_dhcp6_option_serialize(const tnet_dhcp6_option_t* self, tsk_buffer_t *output)
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{
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uint16_t _2bytes;
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int ret = -1;
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if(!self || !output){
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goto bail;
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}
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/*== Code */
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_2bytes = tnet_htons(self->code);
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tsk_buffer_append(output, &(_2bytes), 2);
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switch(self->code){
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case dhcp6_code_clientid:
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case dhcp6_code_serverid:
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{
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break;
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}
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case dhcp6_code_oro:
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default:
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{
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if(self->data)
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{
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const tnet_dhcp6_option_orequest_t* opt = (const tnet_dhcp6_option_orequest_t*)self->data;
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if(opt->codes){
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/* option-len */
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_2bytes = tnet_htons(opt->codes->size);
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tsk_buffer_append(output, &(_2bytes), 2);
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/* option-data */
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ret = tsk_buffer_append(output, opt->codes->data, opt->codes->size);
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}
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}
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break;
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}
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}
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bail:
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return ret;
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}
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int tnet_dhcp6_option_serializeex(tnet_dhcp6_option_code_t code, uint8_t length, const void* value, tsk_buffer_t *output)
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{
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return -1;
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}
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//
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// [[DHCPv6 OPTION]] object definition
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//
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static tsk_object_t* tnet_dhcp6_option_ctor(tsk_object_t * self, va_list * app)
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{
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tnet_dhcp6_option_t *option = self;
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if(option){
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tnet_dhcp6_option_code_t code = va_arg(*app, tnet_dhcp6_option_code_t);
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const void* payload = va_arg(*app, const void*);
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tsk_size_t payload_size = va_arg(*app, tsk_size_t);
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option->code = code;
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if(payload && payload_size){
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if((option->data = (tnet_dhcp6_option_data_t*)tsk_calloc(payload_size, sizeof(uint8_t)))){
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memcpy(option->data, payload, payload_size);
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option->len = payload_size;
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}
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}
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}
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return self;
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}
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static tsk_object_t* tnet_dhcp6_option_dtor(tsk_object_t * self)
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{
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tnet_dhcp6_option_t *option = self;
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if(option){
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TSK_OBJECT_SAFE_FREE(option->data);
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}
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return self;
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}
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static const tsk_object_def_t tnet_dhcp6_option_def_s =
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{
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sizeof(tnet_dhcp6_option_t),
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tnet_dhcp6_option_ctor,
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tnet_dhcp6_option_dtor,
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tsk_null,
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};
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const tsk_object_def_t *tnet_dhcp6_option_def_t = &tnet_dhcp6_option_def_s;
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/*======================================================================================
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* RFC 3315 -
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22.2. Client Identifier Option
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22.3. Server Identifier Option
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*=======================================================================================*/
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//
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// [[DHCPv6 Option Request Option]] object definition
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//
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static tsk_object_t* tnet_dhcp6_option_identifier_ctor(tsk_object_t * self, va_list * app)
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{
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tnet_dhcp6_option_identifier_t *option = self;
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if(option){
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//tnet_dhcp6_option_code_t code = va_arg(*app, tnet_dhcp6_option_code_t);
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const void* payload = va_arg(*app, const void*);
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tsk_size_t payload_size = va_arg(*app, tsk_size_t);
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if(payload && payload_size){
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/* DESERIALIZATION */
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}
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}
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return self;
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}
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static tsk_object_t* tnet_dhcp6_option_identifier_dtor(tsk_object_t * self)
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{
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tnet_dhcp6_option_identifier_t *option = self;
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if(option){
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TSK_OBJECT_SAFE_FREE(option->duid);
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}
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return self;
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}
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static const tsk_object_def_t tnet_dhcp6_option_identifier_def_s =
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{
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sizeof(tnet_dhcp6_option_identifier_t),
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tnet_dhcp6_option_identifier_ctor,
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tnet_dhcp6_option_identifier_dtor,
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tsk_null,
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};
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const tsk_object_def_t *tnet_dhcp6_option_identifier_def_t = &tnet_dhcp6_option_identifier_def_s;
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/*======================================================================================
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* RFC 3315 - 22.7. Option Request Option
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*=======================================================================================*/
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int tnet_dhcp6_option_orequest_add_code(tnet_dhcp6_option_orequest_t* self, uint16_t code)
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{
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uint16_t _2bytes;
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int ret = -1;
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if(self){
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if(!self->codes){
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if(!(self->codes = tsk_buffer_create_null())){
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return -3;
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}
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}
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_2bytes = tnet_ntohs(code);
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if(!(ret = tsk_buffer_append(self->codes, &_2bytes, 2))){
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TNET_DHCP6_OPTION(self)->len += 2;
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}
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}
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return ret;
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}
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//
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// [[DHCPv6 Option Request Option]] object definition
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//
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static tsk_object_t* tnet_dhcp6_option_orequest_ctor(tsk_object_t * self, va_list * app)
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{
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tnet_dhcp6_option_orequest_t *option = self;
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if(option){
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const void* payload = va_arg(*app, const void*);
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tsk_size_t payload_size = va_arg(*app, tsk_size_t);
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if(payload && payload_size)
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{ /* DESERIALIZATION */
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}
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}
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return self;
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}
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static tsk_object_t* tnet_dhcp6_option_orequest_dtor(tsk_object_t * self)
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{
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tnet_dhcp6_option_orequest_t *option = self;
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if(option){
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TSK_OBJECT_SAFE_FREE(option->codes);
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}
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return self;
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}
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static const tsk_object_def_t tnet_dhcp6_option_orequest_def_s =
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{
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sizeof(tnet_dhcp6_option_orequest_t),
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tnet_dhcp6_option_orequest_ctor,
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tnet_dhcp6_option_orequest_dtor,
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tsk_null,
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};
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const tsk_object_def_t *tnet_dhcp6_option_orequest_def_t = &tnet_dhcp6_option_orequest_def_s;
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/*======================================================================================
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* RFC 3315 - 22.16. Vendor Class Option
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*=======================================================================================*/
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//
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// [[DHCPv6 Option Request Option]] object definition
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//
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static tsk_object_t* tnet_dhcp6_option_vendorclass_ctor(tsk_object_t * self, va_list * app)
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{
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tnet_dhcp6_option_vendorclass_t *option = self;
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if(option){
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const void* payload = va_arg(*app, const void*);
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tsk_size_t payload_size = va_arg(*app, tsk_size_t);
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if(payload && payload_size){
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/* DESERIALIZATION */
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}
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}
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return self;
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}
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static tsk_object_t* tnet_dhcp6_option_vendorclass_dtor(tsk_object_t * self)
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{
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tnet_dhcp6_option_vendorclass_t *option = self;
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if(option){
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TSK_OBJECT_SAFE_FREE(option->vendor_class_data);
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}
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return self;
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}
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static const tsk_object_def_t tnet_dhcp6_option_vendorclass_def_s =
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{
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sizeof(tnet_dhcp6_option_vendorclass_t),
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tnet_dhcp6_option_vendorclass_ctor,
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tnet_dhcp6_option_vendorclass_dtor,
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tsk_null,
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};
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const tsk_object_def_t *tnet_dhcp6_option_vendorclass_def_t = &tnet_dhcp6_option_vendorclass_def_s;
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