void
writeNonNegativeIntegerTlv(unsigned int type, uint64_t value)
{
ndn_Error error;
if ((error = ndn_TlvEncoder_writeNonNegativeIntegerTlv(this, type, value)))
throw std::runtime_error(ndn_getErrorString(error));
}
/**
* This private function is called by ndn_TlvEncoder_writeNestedTlv to write the TLVs in the body of the MetaInfo value.
* @param context This is the ndn_MetaInfo struct pointer which was passed to writeTlv.
* @param encoder the ndn_TlvEncoder which is calling this.
* @return 0 for success, else an error code.
*/
static ndn_Error
encodeMetaInfoValue(const void *context, struct ndn_TlvEncoder *encoder)
{
struct ndn_MetaInfo *metaInfo = (struct ndn_MetaInfo *)context;
ndn_Error error;
if (!((int)metaInfo->type < 0 || metaInfo->type == ndn_ContentType_BLOB)) {
// Not the default, so we need to encode the type.
if (metaInfo->type == ndn_ContentType_LINK ||
metaInfo->type == ndn_ContentType_KEY ||
metaInfo->type == ndn_ContentType_NACK) {
// The ContentType enum is set up with the correct integer for each NDN-TLV ContentType.
if ((error = ndn_TlvEncoder_writeNonNegativeIntegerTlv
(encoder, ndn_Tlv_ContentType, metaInfo->type)))
return error;
}
else if (metaInfo->type == ndn_ContentType_OTHER_CODE) {
if ((error = ndn_TlvEncoder_writeNonNegativeIntegerTlv
(encoder, ndn_Tlv_ContentType, metaInfo->otherTypeCode)))
return error;
}
else
// We don't expect this to happen.
return NDN_ERROR_unrecognized_ndn_ContentType;
}
if ((error = ndn_TlvEncoder_writeOptionalNonNegativeIntegerTlvFromDouble
(encoder, ndn_Tlv_FreshnessPeriod, metaInfo->freshnessPeriod)))
return error;
if (metaInfo->finalBlockId.value.value &&
metaInfo->finalBlockId.value.length > 0) {
// The FinalBlockId has an inner NameComponent.
if ((error = ndn_TlvEncoder_writeTypeAndLength
(encoder, ndn_Tlv_FinalBlockId, ndn_TlvEncoder_sizeOfBlobTlv
(metaInfo->finalBlockId.type, &metaInfo->finalBlockId.value))))
return error;
if ((error = ndn_encodeTlvNameComponent(&metaInfo->finalBlockId, encoder)))
return error;
}
return NDN_ERROR_success;
}
/**
* This private function is called by ndn_TlvEncoder_writeNestedTlv to write the TLVs
* in the body of the DigestSha256 value.
* @param context This is the ndn_Signature struct pointer which was passed to writeTlv.
* (It is ignored.)
* @param encoder the ndn_TlvEncoder which is calling this.
* @return 0 for success, else an error code.
*/
static ndn_Error
encodeDigestSha256Value(const void *context, struct ndn_TlvEncoder *encoder)
{
ndn_Error error;
if ((error = ndn_TlvEncoder_writeNonNegativeIntegerTlv
(encoder, ndn_Tlv_SignatureType, ndn_Tlv_SignatureType_DigestSha256)))
return error;
return NDN_ERROR_success;
}
/**
* This private function is called by ndn_TlvEncoder_writeNestedTlv to write the TLVs
* in the body of the Delegation value.
* @param context This is the ndn_DelegationSet_Delegation struct pointer which
* was passed to writeTlv.
* @param encoder the ndn_TlvEncoder which is calling this.
* @return 0 for success, else an error code.
*/
static ndn_Error
encodeDelegationValue(const void *context, struct ndn_TlvEncoder *encoder)
{
struct ndn_DelegationSet_Delegation *delegation =
(struct ndn_DelegationSet_Delegation *)context;
ndn_Error error;
size_t dummyBeginOffset, dummyEndOffset;
if ((error = ndn_TlvEncoder_writeNonNegativeIntegerTlv
(encoder, ndn_Tlv_Link_Preference, delegation->preference)))
return error;
if ((error = ndn_encodeTlvName
(&delegation->name, &dummyBeginOffset, &dummyEndOffset, encoder)))
return error;
return NDN_ERROR_success;
}
/**
* This private function is called by ndn_TlvEncoder_writeNestedTlv to write the TLVs
* in the body of the ControlResponse value.
* @param context This is the ndn_ControlResponse struct pointer which
* was passed to writeTlv.
* @param encoder the ndn_TlvEncoder which is calling this.
* @return 0 for success, else an error code.
*/
static ndn_Error
encodeControlResponseValue(const void *context, struct ndn_TlvEncoder *encoder)
{
struct ndn_ControlResponse *controlResponse =
(struct ndn_ControlResponse *)context;
ndn_Error error;
struct ndn_ForwardingFlags defaultFlags;
if ((error = ndn_TlvEncoder_writeNonNegativeIntegerTlv
(encoder, ndn_Tlv_NfdCommand_StatusCode,
controlResponse->statusCode)))
return error;
if ((error = ndn_TlvEncoder_writeBlobTlv
(encoder, ndn_Tlv_NfdCommand_StatusText, &controlResponse->statusText)))
return error;
if (controlResponse->hasBodyAsControlParameters) {
if ((error = ndn_encodeTlvControlParameters
(&controlResponse->bodyAsControlParameters, encoder)))
return error;
}
return NDN_ERROR_success;
}
/**
* This private function is called by ndn_TlvEncoder_writeNestedTlv to write the
* TLVs in the body of a signature value which has a KeyLocator and
* ValidityPeriod, e.g. SignatureSha256WithRsa.
* @param context This is the ndn_Signature struct pointer which was passed to
* writeTlv. Use signature->type as the TLV type, assuming that the
* ndn_SignatureType enum has the same values as the TLV signature types.
* @param encoder the ndn_TlvEncoder which is calling this.
* @return 0 for success, else an error code.
*/
static ndn_Error
encodeSignatureWithKeyLocatorAndValidityPeriodValue
(const void *context, struct ndn_TlvEncoder *encoder)
{
struct ndn_Signature *signature = (struct ndn_Signature *)context;
ndn_Error error;
if ((error = ndn_TlvEncoder_writeNonNegativeIntegerTlv
(encoder, ndn_Tlv_SignatureType, signature->type)))
return error;
if ((error = ndn_TlvEncoder_writeNestedTlv
(encoder, ndn_Tlv_KeyLocator, ndn_encodeTlvKeyLocatorValue,
&signature->keyLocator, 0)))
return error;
if (ndn_ValidityPeriod_hasPeriod(&signature->validityPeriod)) {
if ((error = ndn_TlvEncoder_writeNestedTlv
(encoder, ndn_Tlv_ValidityPeriod_ValidityPeriod,
encodeValidityPeriodValue, &signature->validityPeriod, 0)))
return error;
}
return NDN_ERROR_success;
}
