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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 <LongBow/runtime.h>
#include <ccnx/transport/common/transport_MetaMessage.h>
#include <ccnx/common/codec/ccnxCodec_TlvPacket.h>
#include <ccnx/common/ccnx_WireFormatMessage.h>
#include <ccnx/common/ccnx_Manifest.h>
CCNxMetaMessage *
ccnxMetaMessage_CreateFromInterest(const CCNxInterest *interest)
{
return ccnxMetaMessage_Acquire((CCNxMetaMessage *) interest);
}
CCNxMetaMessage *
ccnxMetaMessage_CreateFromContentObject(const CCNxContentObject *contentObject)
{
return ccnxMetaMessage_Acquire((CCNxMetaMessage *) contentObject);
}
CCNxMetaMessage *
ccnxMetaMessage_CreateFromControl(const CCNxControl *control)
{
return ccnxMetaMessage_Acquire((CCNxMetaMessage *) control);
}
CCNxMetaMessage *
ccnxMetaMessage_CreateFromManifest(const CCNxManifest *manifest)
{
return ccnxMetaMessage_Acquire((CCNxMetaMessage *) manifest);
}
CCNxContentObject *
ccnxMetaMessage_GetContentObject(const CCNxMetaMessage *message)
{
return (CCNxContentObject *) message;
}
CCNxInterest *
ccnxMetaMessage_GetInterest(const CCNxMetaMessage *message)
{
return (CCNxInterest *) message;
}
CCNxInterestReturn *
ccnxMetaMessage_GetInterestReturn(const CCNxMetaMessage *message)
{
return (CCNxInterestReturn *) message;
}
CCNxControl *
ccnxMetaMessage_GetControl(const CCNxMetaMessage *message)
{
return (CCNxControl *) message;
}
CCNxManifest *
ccnxMetaMessage_GetManifest(const CCNxMetaMessage *message)
{
return (CCNxManifest *) message;
}
CCNxMetaMessage *
ccnxMetaMessage_Acquire(const CCNxMetaMessage *message)
{
return ccnxTlvDictionary_Acquire(message);
}
void
ccnxMetaMessage_Release(CCNxMetaMessage **messagePtr)
{
ccnxTlvDictionary_Release(messagePtr);
}
void
ccnxMetaMessage_Display(const CCNxMetaMessage *message, int indentation)
{
ccnxTlvDictionary_Display(message, indentation);
}
bool
ccnxMetaMessage_IsContentObject(const CCNxMetaMessage *message)
{
return ccnxTlvDictionary_IsContentObject(message);
}
bool
ccnxMetaMessage_IsInterest(const CCNxMetaMessage *message)
{
return ccnxTlvDictionary_IsInterest(message);
}
bool
ccnxMetaMessage_IsInterestReturn(const CCNxMetaMessage *message)
{
return ccnxTlvDictionary_IsInterestReturn(message);
}
bool
ccnxMetaMessage_IsControl(const CCNxMetaMessage *message)
{
return ccnxTlvDictionary_IsControl(message);
}
bool
ccnxMetaMessage_IsManifest(const CCNxMetaMessage *message)
{
return ccnxTlvDictionary_IsManifest(message);
}
/**
* Given an iovec encoded version of a TlvDictionary, which is what we get when we call ccnxCodecTlvPacket_DictionaryEncode(),
* linearize it into a PARCBuffer so we can treat it as a PARCBuffer.
*/
static PARCBuffer *
_iovecToParcBuffer(const CCNxCodecNetworkBufferIoVec *iovec)
{
PARCBuffer *result = NULL;
size_t iovcnt = ccnxCodecNetworkBufferIoVec_GetCount((CCNxCodecNetworkBufferIoVec *) iovec);
const struct iovec *array = ccnxCodecNetworkBufferIoVec_GetArray((CCNxCodecNetworkBufferIoVec *) iovec);
size_t totalbytes = 0;
for (int i = 0; i < iovcnt; i++) {
totalbytes += array[i].iov_len;
}
result = parcBuffer_Allocate(totalbytes);
for (int i = 0; i < iovcnt; i++) {
parcBuffer_PutArray(result, array[i].iov_len, array[i].iov_base);
}
parcBuffer_Flip(result);
return result;
}
CCNxMetaMessage *
ccnxMetaMessage_CreateFromWireFormatBuffer(PARCBuffer *rawMessage)
{
CCNxMetaMessage *result = NULL;
CCNxWireFormatMessage *message = ccnxWireFormatMessage_Create(rawMessage);
if (message != NULL) {
// Get the dictionary from the ccnxWireFormatMessage.
CCNxTlvDictionary *dictionary = ccnxWireFormatMessage_GetDictionary(message);
// We have a partially unpacked dictionary now, but we need to more fully unpack it for our processing.
bool success = ccnxCodecTlvPacket_BufferDecode(rawMessage, dictionary);
if (success) {
result = (CCNxMetaMessage *) dictionary;
} else {
ccnxWireFormatMessage_Release(&message);
result = NULL;
}
}
return result;
}
PARCBuffer *
ccnxMetaMessage_CreateWireFormatBuffer(CCNxMetaMessage *message, PARCSigner *signer)
{
CCNxCodecNetworkBufferIoVec *iovec = ccnxCodecTlvPacket_DictionaryEncode(message, signer);
// iovec has the wireformat version of 'interest' now.
PARCBuffer *result = _iovecToParcBuffer(iovec);
ccnxCodecNetworkBufferIoVec_Release(&iovec);
return result;
}
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