core

package
v0.7.1 Latest Latest
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 Go to latest Published: Apr 14, 2025 License: Apache-2.0 Imports: 26 Imported by: 0

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Constants

This section is empty.

Variables

View Source 
var (
	PfcpMessageRx = promauto.NewCounterVec(prometheus.CounterOpts{
		Name: "upf_pfcp_rx",
		Help: "The total number of received PFCP messages",
	}, []string{"message_name"})

	PfcpMessageTx = promauto.NewCounterVec(prometheus.CounterOpts{
		Name: "upf_pfcp_tx",
		Help: "The total number of transmitted PFCP messages",
	}, []string{"message_name"})

	PfcpMessageRxErrors = promauto.NewCounterVec(prometheus.CounterOpts{
		Name: "upf_pfcp_rx_errors",
		Help: "The total number of received PFCP messages with cause code",
	}, []string{"message_name", "cause_code"})

	UpfXdpAborted       prometheus.CounterFunc
	UpfXdpDrop          prometheus.CounterFunc
	UpfXdpPass          prometheus.CounterFunc
	UpfXdpTx            prometheus.CounterFunc
	UpfXdpRedirect      prometheus.CounterFunc
	UpfPfcpSessions     prometheus.GaugeFunc
	UpfPfcpAssociations prometheus.GaugeFunc

	UpfRx = promauto.NewCounterVec(prometheus.CounterOpts{
		Name: "upf_rx",
		Help: "The total number of received packets",
	}, []string{"packet_type"})

	UpfMessageRxLatency = promauto.NewSummaryVec(prometheus.SummaryOpts{
		Name:       "upf_pfcp_rx_latency",
		Subsystem:  "pfcp",
		Help:       "Duration of the PFCP message processing",
		Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
	}, []string{"message_type"})
)

Functions

func GatherMetrics added in v0.7.0 

func GatherMetrics(stats ebpf.UpfXdpActionStatistic)

func GetTransportLevelMarking added in v0.3.4 

func GetTransportLevelMarking(far *ie.IE) (uint16, error)

func GetURRIDs added in v0.7.0 

func GetURRIDs(i *ie.IE) ([]uint32, error)

func HandlePfcpAssociationSetupRequest 

func HandlePfcpAssociationSetupRequest(conn *PfcpConnection, msg message.Message, addr string) (message.Message, error)

https://www.etsi.org/deliver/etsi_ts/129200_129299/129244/16.04.00_60/ts_129244v160400p.pdf page 95

func HandlePfcpAssociationSetupResponse added in v0.7.0 

func HandlePfcpAssociationSetupResponse(conn *PfcpConnection, msg message.Message, addr string) (message.Message, error)

func HandlePfcpAssociationUpdateRequest added in v0.7.0 

func HandlePfcpAssociationUpdateRequest(conn *PfcpConnection, msg message.Message, addr string) (message.Message, error)

func HandlePfcpHeartbeatRequest 

func HandlePfcpHeartbeatRequest(conn *PfcpConnection, msg message.Message, addr string) (message.Message, error)

func HandlePfcpHeartbeatResponse added in v0.3.3 

func HandlePfcpHeartbeatResponse(conn *PfcpConnection, msg message.Message, addr string) (message.Message, error)

func HandlePfcpSessionDeletionRequest 

func HandlePfcpSessionDeletionRequest(conn *PfcpConnection, msg message.Message, addr string) (message.Message, error)

func HandlePfcpSessionEstablishmentRequest 

func HandlePfcpSessionEstablishmentRequest(conn *PfcpConnection, msg message.Message, addr string) (message.Message, error)

func HandlePfcpSessionModificationRequest 

func HandlePfcpSessionModificationRequest(conn *PfcpConnection, msg message.Message, addr string) (message.Message, error)

func InitLogger added in v0.5.0 

func InitLogger()

func ParseCidrIp added in v0.5.0 

func ParseCidrIp(ipStr, maskStr string) (ebpf.IpWMask, error)

func ParsePort added in v0.5.0 

func ParsePort(str string) (uint16, error)

func ParsePortRange added in v0.5.0 

func ParsePortRange(str string) (ebpf.PortRange, error)

func ParseProtocol added in v0.5.0 

func ParseProtocol(protocol string) (uint8, error)

func ParseSdfFilter added in v0.5.0 

func ParseSdfFilter(flowDescription string) (ebpf.SdfFilter, error)

func RegisterMetrics 

func RegisterMetrics(stats ebpf.UpfXdpActionStatistic, conn *PfcpConnection)

func SendHeartbeatRequest added in v0.3.3 

func SendHeartbeatRequest(conn *PfcpConnection, sequenceID uint32, associationAddr string)

func SetConfig added in v0.5.0 

func SetConfig(conf config.UpfConfig) error

func SetLoggerLevel added in v0.5.0 

func SetLoggerLevel(loggingLevel string) error

func StartMetrics 

func StartMetrics(addr string) error

Types

type AssociationConnector added in v0.7.0 

type AssociationConnector interface {
	// contains filtered or unexported methods
}

type DefaultAssociationConnector added in v0.7.0 

type DefaultAssociationConnector struct {
	// contains filtered or unexported fields
}

func NewDefaultAssociationConnector added in v0.7.0 

func NewDefaultAssociationConnector(address string) *DefaultAssociationConnector

type GtpPathManager added in v0.6.0 

type GtpPathManager struct {
	// contains filtered or unexported fields
}

func NewGtpPathManager added in v0.6.0 

func NewGtpPathManager(localAddress string, interval time.Duration) *GtpPathManager

func (*GtpPathManager) AddGtpPath added in v0.6.0 

func (gtpPathManager *GtpPathManager) AddGtpPath(gtpPeerAddress string)

func (*GtpPathManager) Run added in v0.6.0 

func (gtpPathManager *GtpPathManager) Run()

func (*GtpPathManager) Stop added in v0.6.0 

func (gtpPathManager *GtpPathManager) Stop()

type NodeAssociation 

type NodeAssociation struct {
	ID               string
	Addr             string
	NextSessionID    uint64
	NextSequenceID   uint32
	Sessions         map[uint64]*Session
	HeartbeatChannel chan uint32
	HeartbeatsActive bool
	sync.Mutex
}

func NewNodeAssociation added in v0.3.3 

func NewNodeAssociation(remoteNodeID string, addr string) *NodeAssociation

func (*NodeAssociation) HandleHeartbeat added in v0.6.1 

func (association *NodeAssociation) HandleHeartbeat(sequence uint32)

func (*NodeAssociation) NewLocalSEID 

func (association *NodeAssociation) NewLocalSEID() uint64

func (*NodeAssociation) NewSequenceID added in v0.3.5 

func (association *NodeAssociation) NewSequenceID() uint32

func (*NodeAssociation) ScheduleHeartbeat added in v0.6.1 

func (association *NodeAssociation) ScheduleHeartbeat(conn *PfcpConnection)

type PDRCreationContext added in v0.6.0 

type PDRCreationContext struct {
	Session         *Session
	ResourceManager *service.ResourceManager
	TEIDCache       map[uint8]uint32
}

func NewPDRCreationContext added in v0.6.0 

func NewPDRCreationContext(session *Session, resourceManager *service.ResourceManager) *PDRCreationContext

type PfcpConnection 

type PfcpConnection struct {
	NodeAssociations map[string]*NodeAssociation

	RecoveryTimestamp time.Time

	ResourceManager *service.ResourceManager
	// contains filtered or unexported fields
}

func NewPfcpConnection added in v0.7.0 

func NewPfcpConnection(addr string, nodeId string, n3Ip string, n9Ip string, mapOperations ebpf.ForwardingPlaneController, resourceManager *service.ResourceManager) (*PfcpConnection, error)

func (*PfcpConnection) Close 

func (connection *PfcpConnection) Close()

func (*PfcpConnection) DeleteAssociation added in v0.3.3 

func (connection *PfcpConnection) DeleteAssociation(assocAddr string)

DeleteAssociation deletes an association and all sessions associated with it.

func (*PfcpConnection) DeleteSession added in v0.3.3 

func (connection *PfcpConnection) DeleteSession(session *Session)

DeleteSession deletes a session and all PDRs, FARs and QERs associated with it.

func (*PfcpConnection) GetAssiciationCount added in v0.3.6 

func (connection *PfcpConnection) GetAssiciationCount() int

func (*PfcpConnection) GetAssociation added in v0.3.3 

func (connection *PfcpConnection) GetAssociation(assocAddr string) *NodeAssociation

func (*PfcpConnection) GetSessionCount added in v0.3.6 

func (connection *PfcpConnection) GetSessionCount() int

func (*PfcpConnection) Handle 

func (connection *PfcpConnection) Handle(b []byte, addr *net.UDPAddr)

func (*PfcpConnection) Receive 

func (connection *PfcpConnection) Receive(b []byte) (n int, addr *net.UDPAddr, err error)

func (*PfcpConnection) RefreshAssociations added in v0.3.3 

func (connection *PfcpConnection) RefreshAssociations()

func (*PfcpConnection) ReleaseResources added in v0.6.0 

func (connection *PfcpConnection) ReleaseResources(seID uint64)

func (*PfcpConnection) Run 

func (connection *PfcpConnection) Run()

func (*PfcpConnection) Send 

func (connection *PfcpConnection) Send(b []byte, addr *net.UDPAddr) (int, error)

func (*PfcpConnection) SendMessage 

func (connection *PfcpConnection) SendMessage(msg message.Message, addr *net.UDPAddr) error

func (*PfcpConnection) SetRemoteNodes added in v0.7.0 

func (connection *PfcpConnection) SetRemoteNodes(nodes []AssociationConnector)

type PfcpFunc 

type PfcpFunc func(conn *PfcpConnection, msg message.Message, addr string) (message.Message, error)

type PfcpHandlerMap 

type PfcpHandlerMap map[uint8]PfcpFunc

func (PfcpHandlerMap) Handle 

func (handlerMap PfcpHandlerMap) Handle(conn *PfcpConnection, buf []byte, addr *net.UDPAddr) error

type SFarInfo 

type SFarInfo struct {
	FarInfo  ebpf.FarInfo
	GlobalId uint32
}

type SPDRInfo 

type SPDRInfo struct {
	PdrID     uint32
	PdrInfo   ebpf.PdrInfo
	Teid      uint32
	Ipv4      net.IP
	Ipv6      net.IP
	Allocated bool
}

type SQerInfo 

type SQerInfo struct {
	QerInfo  ebpf.QerInfo
	GlobalId uint32
}

type SUrrInfo added in v0.7.0 

type SUrrInfo struct {
	UrrInfo         ebpf.UrrInfo
	GlobalId        uint32
	ReportSeqNumber uint32
}

type Session 

type Session struct {
	LocalSEID  uint64
	RemoteSEID uint64
	PDRs       map[uint32]SPDRInfo
	FARs       map[uint32]SFarInfo
	QERs       map[uint32]SQerInfo
	URRs       map[uint32]SUrrInfo
}

func NewSession added in v0.3.3 

func NewSession(localSEID uint64, remoteSEID uint64) *Session

func (*Session) GetFar 

func (s *Session) GetFar(id uint32) SFarInfo

func (*Session) GetPDR added in v0.4.0 

func (s *Session) GetPDR(id uint16) SPDRInfo

func (*Session) GetQer 

func (s *Session) GetQer(id uint32) SQerInfo

func (*Session) GetUrr added in v0.7.0 

func (s *Session) GetUrr(id uint32) SUrrInfo

func (*Session) NewFar 

func (s *Session) NewFar(id uint32, internalId uint32, farInfo ebpf.FarInfo)

func (*Session) NewQer 

func (s *Session) NewQer(id uint32, internalId uint32, qerInfo ebpf.QerInfo)

func (*Session) NewUrr added in v0.7.0 

func (s *Session) NewUrr(id uint32, internalId uint32, urrInfo ebpf.UrrInfo)

func (*Session) PutPDR added in v0.4.0 

func (s *Session) PutPDR(id uint32, info SPDRInfo)

func (*Session) RemoveFar 

func (s *Session) RemoveFar(id uint32) SFarInfo

func (*Session) RemovePDR added in v0.4.0 

func (s *Session) RemovePDR(id uint32) SPDRInfo

func (*Session) RemoveQer 

func (s *Session) RemoveQer(id uint32) SQerInfo

func (*Session) RemoveUrr added in v0.7.0 

func (s *Session) RemoveUrr(id uint32) SUrrInfo

func (*Session) UpdateFar 

func (s *Session) UpdateFar(id uint32, farInfo ebpf.FarInfo)

func (*Session) UpdateQer 

func (s *Session) UpdateQer(id uint32, qerInfo ebpf.QerInfo)

func (*Session) UpdateUrr added in v0.7.0 

func (s *Session) UpdateUrr(id uint32, urrInfo ebpf.UrrInfo)

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