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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <LongBow/runtime.h>
#include <parc/algol/parc_Memory.h>
#include <parc/algol/parc_Buffer.h>
#include <ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_OptionalHeadersEncoder.h>
#include <ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_Types.h>
#include <ccnx/common/codec/ccnxCodec_TlvUtilities.h>
static ssize_t
_EncodeInterestLifetime(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
{
ssize_t length = 0;
// allow either encoding as an Integer or as a Buffer
if (ccnxTlvDictionary_IsValueInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_InterestLifetime)) {
uint64_t lifetime = ccnxTlvDictionary_GetInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_InterestLifetime);
length = ccnxCodecTlvEncoder_AppendVarInt(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_InterestLifetime, lifetime);
} else if (ccnxTlvDictionary_IsValueBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_InterestLifetime)) {
PARCBuffer *lifetime = ccnxTlvDictionary_GetBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_InterestLifetime);
length = ccnxCodecTlvEncoder_AppendBuffer(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_InterestLifetime, lifetime);
}
return length;
}
static ssize_t
_EncodeRecommendedCacheTime(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
{
ssize_t length = 0;
// allow either encoding as an Integer or as a Buffer
if (ccnxTlvDictionary_IsValueInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_RecommendedCacheTime)) {
uint64_t cacheTime = ccnxTlvDictionary_GetInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_RecommendedCacheTime);
length = ccnxCodecTlvEncoder_AppendVarInt(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_RecommendedCacheTime, cacheTime);
} else if (ccnxTlvDictionary_IsValueBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_RecommendedCacheTime)) {
PARCBuffer *cacheTime = ccnxTlvDictionary_GetBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_RecommendedCacheTime);
length = ccnxCodecTlvEncoder_AppendBuffer(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_RecommendedCacheTime, cacheTime);
}
return length;
}
static ssize_t
_EncodePathLabel(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
{
ssize_t length = 0;
if (ccnxTlvDictionary_IsValueInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_PathLabel)) {
uint16_t pathLabel = ccnxTlvDictionary_GetInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_PathLabel);
length = ccnxCodecTlvEncoder_AppendVarInt(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_PathLabel, pathLabel);
} else if (ccnxTlvDictionary_IsValueBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_PathLabel)) {
PARCBuffer *pathLabel = ccnxTlvDictionary_GetBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_PathLabel);
length = ccnxCodecTlvEncoder_AppendBuffer(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_PathLabel, pathLabel);
}
return length;
}
static ssize_t
_EncodeInterestFrag(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
{
ssize_t length = 0;
PARCBuffer *buffer = ccnxTlvDictionary_GetBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_INTFRAG);
if (buffer != NULL) {
length = ccnxCodecTlvEncoder_AppendBuffer(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_InterestFragment, buffer);
}
return length;
}
static ssize_t
_EncodeContentObjectFrag(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
{
ssize_t length = 0;
PARCBuffer *buffer = ccnxTlvDictionary_GetBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_OBJFRAG);
if (buffer != NULL) {
length = ccnxCodecTlvEncoder_AppendBuffer(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_ContentObjectFragment, buffer);
}
return length;
}
static ssize_t
_EncodeInterestHeaders(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
{
ssize_t length = 0;
ssize_t intFragLength = _EncodeInterestFrag(optionalHeadersEncoder, packetDictionary);
if (intFragLength < 0) {
return intFragLength;
}
length += intFragLength;
ssize_t intLifeLength = _EncodeInterestLifetime(optionalHeadersEncoder, packetDictionary);
if (intLifeLength < 0) {
return intLifeLength;
}
length += intLifeLength;
ssize_t customLength = ccnxCodecTlvUtilities_EncodeCustomList(optionalHeadersEncoder, packetDictionary, CCNxCodecSchemaV1TlvDictionary_Lists_HEADERS);
if (customLength < 0) {
return customLength;
}
length += customLength;
return length;
}
static ssize_t
_EncodeContentObjectHeaders(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
{
ssize_t length = 0;
ssize_t result;
result = _EncodeContentObjectFrag(optionalHeadersEncoder, packetDictionary);
if (result < 0) {
return result;
}
length += result;
result = _EncodeRecommendedCacheTime(optionalHeadersEncoder, packetDictionary);
if (result < 0) {
return result;
}
length += result;
result = _EncodePathLabel(optionalHeadersEncoder, packetDictionary);
if (result < 0) {
return result;
}
length += result;
result = ccnxCodecTlvUtilities_EncodeCustomList(optionalHeadersEncoder, packetDictionary, CCNxCodecSchemaV1TlvDictionary_Lists_HEADERS);
if (result < 0) {
return result;
}
length += result;
return length;
}
ssize_t
ccnxCodecSchemaV1OptionalHeadersEncoder_Encode(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
{
assertNotNull(optionalHeadersEncoder, "Parameter optionalHeadersEncoder must be non-null");
assertNotNull(packetDictionary, "Parameter packetDictionary must be non-null");
ssize_t result = 0;
if (ccnxTlvDictionary_IsInterest(packetDictionary) || ccnxTlvDictionary_IsInterestReturn(packetDictionary)) {
result = _EncodeInterestHeaders(optionalHeadersEncoder, packetDictionary);
} else if (ccnxTlvDictionary_IsContentObject(packetDictionary) || ccnxTlvDictionary_IsManifest(packetDictionary)) {
result = _EncodeContentObjectHeaders(optionalHeadersEncoder, packetDictionary);
} else if (ccnxTlvDictionary_IsControl(packetDictionary)) {
result = ccnxCodecTlvUtilities_EncodeCustomList(optionalHeadersEncoder, packetDictionary, CCNxCodecSchemaV1TlvDictionary_Lists_HEADERS);
} else {
CCNxCodecError *error = ccnxCodecError_Create(TLV_ERR_PACKETTYPE, __func__, __LINE__, ccnxCodecTlvEncoder_Position(optionalHeadersEncoder));
ccnxCodecTlvEncoder_SetError(optionalHeadersEncoder, error);
ccnxCodecError_Release(&error);
result = -1;
}
return result;
}
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