core

package
v0.3.5 Latest Latest
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 Go to latest Published: Jul 19, 2023 License: Apache-2.0 Imports: 22 Imported by: 0

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Index

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

	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 DisplayConfig 

func DisplayConfig() func(c *gin.Context)

DisplayConfig godoc @Summary Display configuration @Description Display configuration @Tags Configuration @Produce json @Success 200 {object} config.UpfConfig @Router /config [get]

func DisplayXdpStatistics 

func DisplayXdpStatistics(forwardPlaneStats ebpf.UpfXdpActionStatistic) func(c *gin.Context)

DisplayXdpStatistics godoc @Summary Display XDP statistics @Description Display XDP statistics @Tags XDP @Produce json @Success 200 {object} XdpStats @Router /xdp_stats [get]

func GetQerContent 

func GetQerContent(bpfObjects *ebpf.BpfObjects) func(c *gin.Context)

GetQerContent godoc @Summary List QER map content @Description List QER map content @Tags QER @Produce json @Param id path int true "Qer ID" @Success 200 {object} []ebpf.QerMapElement @Router /qer_map/{id} [get]

func GetTransportLevelMarking added in v0.3.4 

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

func ListPfcpAssociations(pfcpSrv *PfcpConnection) func(c *gin.Context)

ListPfcpAssociations godoc @Summary List PFCP associations @Description List PFCP associations @Tags PFCP @Produce json @Success 200 {object} NodeAssociationMapNoSession @Router /pfcp_associations [get]

func ListPfcpAssociationsFull 

func ListPfcpAssociationsFull(pfcpSrv *PfcpConnection) func(c *gin.Context)

ListPfcpAssociationsFull godoc @Summary List PFCP associations @Description List PFCP associations @Tags PFCP @Produce json @Success 200 {object} map[string]core.NodeAssociation @Router /pfcp_associations/full [get]

func ListPfcpSessionsFiltered 

func ListPfcpSessionsFiltered(pfcpSrv *PfcpConnection) func(c *gin.Context)

ListPfcpSessionsFiltered godoc @Summary If no parameters are given, list all PFCP sessions. If ip or teid is given, single session will be returned. If both ip and teid are given, it is possible to return two sessions. @Tags PFCP @Produce json @Param ip query string false "ip" @Param teid query int false "teid" @Success 200 {object} []core.Session @Router /pfcp_sessions [get]

func ListQerMapContent 

func ListQerMapContent(bpfObjects *ebpf.BpfObjects) func(c *gin.Context)

ListQerMapContent godoc @Summary List QER map content @Description List QER map content @Tags QER @Produce json @Success 200 {object} []ebpf.QerMapElement @Router /qer_map [get]

func ListUpfPipeline 

func ListUpfPipeline(bpfObjects *ebpf.BpfObjects) func(c *gin.Context)

ListUpfPipeline godoc @Summary List UPF pipeline @Description List UPF pipeline @Tags UPF @Produce json @Success 200 {object} []ebpf.BpfMapProgArrayMember @Router /upf_pipeline [get]

func RegisterMetrics 

func RegisterMetrics(stats ebpf.UpfXdpActionStatistic)

func SendHeartbeatRequest added in v0.3.3 

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

func StartMetrics 

func StartMetrics(addr string) error

Types

type ApiServer 

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

func CreateApiServer 

func CreateApiServer(bpfObjects *ebpf.BpfObjects, pfcpSrv *PfcpConnection, forwardPlaneStats ebpf.UpfXdpActionStatistic) *ApiServer

func (*ApiServer) Run 

func (server *ApiServer) Run(addr string) error

type NodeAssociation 

type NodeAssociation struct {
	ID               string
	Addr             string
	NextSessionID    uint64
	NextSequenceID   uint32
	Sessions         map[uint64]*Session
	HeartbeatRetries uint32
	// contains filtered or unexported fields
}

func NewNodeAssociation added in v0.3.3 

func NewNodeAssociation(remoteNodeID string, addr string) *NodeAssociation

func (*NodeAssociation) IsExpired added in v0.3.3 

func (association *NodeAssociation) IsExpired() bool

func (*NodeAssociation) IsHeartbeatScheduled added in v0.3.3 

func (association *NodeAssociation) IsHeartbeatScheduled() bool

func (*NodeAssociation) NewLocalSEID 

func (association *NodeAssociation) NewLocalSEID() uint64

func (*NodeAssociation) NewSequenceID added in v0.3.5 

func (association *NodeAssociation) NewSequenceID() uint32

func (*NodeAssociation) RefreshRetries added in v0.3.3 

func (association *NodeAssociation) RefreshRetries()

func (*NodeAssociation) ScheduleHeartbeatRequest added in v0.3.3 

func (association *NodeAssociation) ScheduleHeartbeatRequest(duration time.Duration, conn *PfcpConnection) context.CancelFunc

ScheduleHeartbeatRequest schedules a series of heartbeat requests to be sent to the remote node. Return a cancellation function to stop the scheduled requests.

type NodeAssociationMapNoSession 

type NodeAssociationMapNoSession map[string]NodeAssociationNoSession

type NodeAssociationNoSession 

type NodeAssociationNoSession struct {
	ID            string
	Addr          string
	NextSessionID uint64
}

type PfcpConnection 

type PfcpConnection struct {
	NodeAssociations map[string]*NodeAssociation
	// contains filtered or unexported fields
}

func CreatePfcpConnection 

func CreatePfcpConnection(addr string, pfcpHandlerMap PfcpHandlerMap, nodeId string, n3Ip string, mapOperations ebpf.ForwardingPlaneController) (*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) GetAssociation added in v0.3.3 

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

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()

RefreshAssociations checks for expired associations and schedules heartbeats for those that are not expired.

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

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 {
	PdrInfo ebpf.PdrInfo
	Teid    uint32
	Ipv4    net.IP
	Ipv6    net.IP
}

type SQerInfo 

type SQerInfo struct {
	QerInfo  ebpf.QerInfo
	GlobalId uint32
}

type Session 

type Session struct {
	LocalSEID    uint64
	RemoteSEID   uint64
	UplinkPDRs   map[uint32]SPDRInfo
	DownlinkPDRs map[uint32]SPDRInfo
	FARs         map[uint32]SFarInfo
	QERs         map[uint32]SQerInfo
}

func FilterSessionsByIP 

func FilterSessionsByIP(nodeMap *map[string]*NodeAssociation, filterByIP net.IP) *Session

func FilterSessionsByTeid 

func FilterSessionsByTeid(nodeMap *map[string]*NodeAssociation, filterByTeid uint32) *Session

func GetAllSessions 

func GetAllSessions(nodeMap *map[string]*NodeAssociation) (sessions []Session)

func NewSession added in v0.3.3 

func NewSession(localSEID uint64, remoteSEID uint64) *Session

func (*Session) GetDownlinkPDR 

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

func (*Session) GetFar 

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

func (*Session) GetQer 

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

func (*Session) GetUplinkPDR 

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

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) PutDownlinkPDR 

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

func (*Session) PutUplinkPDR 

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

func (*Session) RemoveDownlinkPDR 

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

func (*Session) RemoveFar 

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

func (*Session) RemoveQer 

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

func (*Session) RemoveUplinkPDR 

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

func (*Session) UpdateFar 

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

func (*Session) UpdateQer 

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

type XdpStats 

type XdpStats struct {
	Aborted  uint64 `json:"aborted"`
	Drop     uint64 `json:"drop"`
	Pass     uint64 `json:"pass"`
	Tx       uint64 `json:"tx"`
	Redirect uint64 `json:"redirect"`
}

Source Files

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