daemon

type ASInfo struct {
	IA  addr.IA
	MTU uint16
}

type Connector interface {
	// LocalIA requests from the daemon the local ISD-AS number.
	LocalIA(ctx context.Context) (addr.IA, error)
	// Paths requests from the daemon a set of end to end paths between the source and destination.
	Paths(ctx context.Context, dst, src addr.IA, f PathReqFlags) ([]snet.Path, error)
	// ASInfo requests from the daemon information about AS ia, the zero IA can be
	// use to detect the local IA.
	ASInfo(ctx context.Context, ia addr.IA) (ASInfo, error)
	// IFInfo requests from SCION Daemon addresses and ports of interfaces. Slice
	// ifs contains interface IDs of BRs. If empty, a fresh (i.e., uncached)
	// answer containing all interfaces is returned.
	IFInfo(ctx context.Context, ifs []common.IFIDType) (map[common.IFIDType]*net.UDPAddr, error)
	// SVCInfo requests from the daemon information about addresses and ports of
	// infrastructure services.  Slice svcTypes contains a list of desired
	// service types. If unset, a fresh (i.e., uncached) answer containing all
	// service types is returned. The reply is a map from service type to URI of
	// the service.
	SVCInfo(ctx context.Context, svcTypes []addr.HostSVC) (map[addr.HostSVC]string, error)
	// RevNotification sends a RevocationInfo message to the daemon.
	RevNotification(ctx context.Context, revInfo *path_mgmt.RevInfo) error
	// Close shuts down the connection to the daemon.
	Close(ctx context.Context) error
}

type Metrics struct {
	Connects                   metrics.Counter
	PathsRequests              metrics.Counter
	ASRequests                 metrics.Counter
	InterfacesRequests         metrics.Counter
	ServicesRequests           metrics.Counter
	InterfaceDownNotifications metrics.Counter
}

type PathReqFlags struct {
	Refresh bool
	Hidden  bool
}

type Querier struct {
	Connector Connector
	IA        addr.IA
}

type RevHandler struct {
	Connector Connector
}

type Service struct {
	// Address is the address of the SCION daemon to connect to.
	Address string
	// Metrics are the metric counters that should be incremented when using the
	// connector.
	Metrics Metrics
}

type TopoQuerier struct {
	Connector Connector
}