bp

const (
	// BlockReplicate asks that this block be copied into every fragment (bit 0).
	BlockReplicate BlockFlags = 1 << 0
	// BlockReportIfUnprocessed asks for a status report when the block cannot
	// be processed (bit 1).
	BlockReportIfUnprocessed BlockFlags = 1 << 1
	// BlockDeleteIfUnprocessed deletes the bundle when the block cannot be
	// processed (bit 2).
	BlockDeleteIfUnprocessed BlockFlags = 1 << 2
	// BlockLast marks the final block of the bundle (bit 3).
	BlockLast BlockFlags = 1 << 3
	// BlockDiscardIfUnprocessed drops the block when it cannot be processed
	// (bit 4).
	BlockDiscardIfUnprocessed BlockFlags = 1 << 4
	// BlockForwarded records that the block passed through a node that could
	// not process it (bit 5).
	BlockForwarded BlockFlags = 1 << 5
	// BlockHasEIDRefs marks a block carrying EID references (bit 6).
	BlockHasEIDRefs BlockFlags = 1 << 6
)

const (
	// BlockTypePayload is the bundle payload block. It is the only type
	// RFC 5050 assigns.
	BlockTypePayload BlockType = 1

	// BlockTypeECOS is the Extended Class of Service block that
	// CCSDS 734.2-B-1 clause 3.3 requires. The code is IANA-assigned; 19 is the
	// value in the IANA Bundle Block Types registry.
	BlockTypeECOS BlockType = 19
)

const (
	// FlagFragment marks a bundle that is a fragment (bit 0).
	FlagFragment BundleFlags = 1 << 0
	// FlagAdminRecord marks an administrative record payload (bit 1).
	FlagAdminRecord BundleFlags = 1 << 1
	// FlagNoFragment forbids fragmenting this bundle (bit 2).
	FlagNoFragment BundleFlags = 1 << 2
	// FlagCustodyRequested asks the next node to take custody (bit 3).
	FlagCustodyRequested BundleFlags = 1 << 3
	// FlagSingleton marks a destination that is a singleton endpoint (bit 4).
	FlagSingleton BundleFlags = 1 << 4
	// FlagAppAck asks for application-level acknowledgement (bit 5).
	FlagAppAck BundleFlags = 1 << 5

	// FlagReportReception asks for a bundle-reception status report (bit 14).
	FlagReportReception BundleFlags = 1 << 14
	// FlagReportCustody asks for a custody-acceptance report (bit 15).
	FlagReportCustody BundleFlags = 1 << 15
	// FlagReportForwarding asks for a forwarding report (bit 16).
	FlagReportForwarding BundleFlags = 1 << 16
	// FlagReportDelivery asks for a delivery report (bit 17).
	FlagReportDelivery BundleFlags = 1 << 17
	// FlagReportDeletion asks for a deletion report (bit 18).
	FlagReportDeletion BundleFlags = 1 << 18
)

const (
	// ECOSCritical asks that one copy go along every path that might reach
	// the destination (0x01).
	ECOSCritical ECOSFlags = 0x01
	// ECOSStreaming asks for best-efforts forwarding, without retransmission
	// (0x02).
	ECOSStreaming ECOSFlags = 0x02
	// ECOSFlowLabelPresent says a flow label SDNV follows the ordinal byte
	// (0x04).
	ECOSFlowLabelPresent ECOSFlags = 0x04
	// ECOSReliable asks for a convergence layer that retransmits on loss
	// (0x08).
	ECOSReliable ECOSFlags = 0x08
)

const (
	// PriorityBulk is the lowest class.
	PriorityBulk Priority = 0
	// PriorityNormal is the middle class.
	PriorityNormal Priority = 1
	// PriorityExpedited is the highest class RFC 5050 defines. Value 3 is
	// reserved.
	PriorityExpedited Priority = 2
)

const (
	// ReasonNoInformation means no additional information.
	ReasonNoInformation ReasonCode = 0x00
	// ReasonLifetimeExpired means the bundle outlived its lifetime.
	ReasonLifetimeExpired ReasonCode = 0x01
	// ReasonForwardedUnidirectional means it was forwarded over a
	// unidirectional link.
	ReasonForwardedUnidirectional ReasonCode = 0x02
	// ReasonTransmissionCancelled means transmission was cancelled.
	ReasonTransmissionCancelled ReasonCode = 0x03
	// ReasonDepletedStorage means the node ran out of storage.
	ReasonDepletedStorage ReasonCode = 0x04
	// ReasonEndpointIDUnintelligible means the destination could not be parsed.
	ReasonEndpointIDUnintelligible ReasonCode = 0x05
	// ReasonNoRoute means no route to the destination.
	ReasonNoRoute ReasonCode = 0x06
	// ReasonNoContact means no timely contact with the next node.
	ReasonNoContact ReasonCode = 0x07
	// ReasonBlockUnintelligible means a block could not be processed.
	ReasonBlockUnintelligible ReasonCode = 0x08
)

const (
	// RecordStatusReport reports how a bundle progressed through the network.
	RecordStatusReport RecordType = 1
	// RecordCustodySignal accepts or refuses custody of a bundle.
	RecordCustodySignal RecordType = 2
)

const (
	// StatusReceived means the reporting node received the bundle.
	StatusReceived StatusFlags = 0x01
	// StatusCustodyAccepted means it accepted custody.
	StatusCustodyAccepted StatusFlags = 0x02
	// StatusForwarded means it forwarded the bundle.
	StatusForwarded StatusFlags = 0x04
	// StatusDelivered means it delivered the bundle.
	StatusDelivered StatusFlags = 0x08
	// StatusDeleted means it deleted the bundle.
	StatusDeleted StatusFlags = 0x10
)