netlink – github.com/vishvananda/netlink Index | Files | Directories

package netlink

import "github.com/vishvananda/netlink"

Package netlink provides a simple library for netlink. Netlink is the interface a user-space program in linux uses to communicate with the kernel. It can be used to add and remove interfaces, set up ip addresses and routes, and confiugre ipsec. Netlink communication requires elevated privileges, so in most cases this code needs to be run as root. The low level primitives for netlink are contained in the nl subpackage. This package attempts to provide a high-level interface that is loosly modeled on the iproute2 cli.

Index

Constants

const (
	INET_DIAG_NONE = iota
	INET_DIAG_MEMINFO
	INET_DIAG_INFO
	INET_DIAG_VEGASINFO
	INET_DIAG_CONG
	INET_DIAG_TOS
	INET_DIAG_TCLASS
	INET_DIAG_SKMEMINFO
	INET_DIAG_SHUTDOWN
	INET_DIAG_DCTCPINFO
	INET_DIAG_PROTOCOL
	INET_DIAG_SKV6ONLY
	INET_DIAG_LOCALS
	INET_DIAG_PEERS
	INET_DIAG_PAD
	INET_DIAG_MARK
	INET_DIAG_BBRINFO
	INET_DIAG_CLASS_ID
	INET_DIAG_MD5SIG
	INET_DIAG_MAX
)

INET_DIAG constatns

const (
	OperUnknown        = iota // Status can't be determined.
	OperNotPresent            // Some component is missing.
	OperDown                  // Down.
	OperLowerLayerDown        // Down due to state of lower layer.
	OperTesting               // In some test mode.
	OperDormant               // Not up but pending an external event.
	OperUp                    // Up, ready to send packets.
)
const (
	BOND_MODE_MASK uint64 = 1 << (1 + iota)
	BOND_ACTIVE_SLAVE_MASK
	BOND_MIIMON_MASK
	BOND_UPDELAY_MASK
	BOND_DOWNDELAY_MASK
	BOND_USE_CARRIER_MASK
	BOND_ARP_INTERVAL_MASK
	BOND_ARP_VALIDATE_MASK
	BOND_ARP_ALL_TARGETS_MASK
	BOND_PRIMARY_MASK
	BOND_PRIMARY_RESELECT_MASK
	BOND_FAIL_OVER_MAC_MASK
	BOND_XMIT_HASH_POLICY_MASK
	BOND_RESEND_IGMP_MASK
	BOND_NUM_PEER_NOTIF_MASK
	BOND_ALL_SLAVES_ACTIVE_MASK
	BOND_MIN_LINKS_MASK
	BOND_LP_INTERVAL_MASK
	BOND_PACKETS_PER_SLAVE_MASK
	BOND_LACP_RATE_MASK
	BOND_AD_SELECT_MASK
)

Flag mask for bond options. Bond.Flagmask must be set to on for option to work.

const (
	CSum    TunnelEncapFlag = 1 << 0
	CSum6                   = 1 << 1
	RemCSum                 = 1 << 2
)
const (
	IP6_TNL_F_IGN_ENCAP_LIMIT    IP6TunnelFlag = 1  // don't add encapsulation limit if one isn't present in inner packet
	IP6_TNL_F_USE_ORIG_TCLASS                  = 2  // copy the traffic class field from the inner packet
	IP6_TNL_F_USE_ORIG_FLOWLABEL               = 4  // copy the flowlabel from the inner packet
	IP6_TNL_F_MIP6_DEV                         = 8  // being used for Mobile IPv6
	IP6_TNL_F_RCV_DSCP_COPY                    = 10 // copy DSCP from the outer packet
	IP6_TNL_F_USE_ORIG_FWMARK                  = 20 // copy fwmark from inner packet
	IP6_TNL_F_ALLOW_LOCAL_REMOTE               = 40 // allow remote endpoint on the local node
)
const (
	IPOIB_MODE_DATAGRAM = iota
	IPOIB_MODE_CONNECTED
)
const (
	CAN_STATE_ERROR_ACTIVE = iota
	CAN_STATE_ERROR_WARNING
	CAN_STATE_ERROR_PASSIVE
	CAN_STATE_BUS_OFF
	CAN_STATE_STOPPED
	CAN_STATE_SLEEPING
)
const (
	HANDLE_NONE      = 0
	HANDLE_INGRESS   = 0xFFFFFFF1
	HANDLE_CLSACT    = HANDLE_INGRESS
	HANDLE_ROOT      = 0xFFFFFFFF
	PRIORITY_MAP_LEN = 16
)
const (
	HANDLE_MIN_INGRESS = 0xFFFFFFF2
	HANDLE_MIN_EGRESS  = 0xFFFFFFF3
)
const (
	RT_FILTER_PROTOCOL uint64 = 1 << (1 + iota)
	RT_FILTER_SCOPE
	RT_FILTER_TYPE
	RT_FILTER_TOS
	RT_FILTER_IIF
	RT_FILTER_OIF
	RT_FILTER_DST
	RT_FILTER_SRC
	RT_FILTER_GW
	RT_FILTER_TABLE
	RT_FILTER_HOPLIMIT
	RT_FILTER_PRIORITY
	RT_FILTER_MARK
	RT_FILTER_MASK
	RT_FILTER_REALM
)
const (
	TCP_ESTABLISHED = iota + 0x01
	TCP_SYN_SENT
	TCP_SYN_RECV
	TCP_FIN_WAIT1
	TCP_FIN_WAIT2
	TCP_TIME_WAIT
	TCP_CLOSE
	TCP_CLOSE_WAIT
	TCP_LAST_ACK
	TCP_LISTEN
	TCP_CLOSING
	TCP_NEW_SYN_REC
	TCP_MAX_STATES
)

TCP States

Variables

var (
	// ErrAttrHeaderTruncated is returned when a netlink attribute's header is
	// truncated.
	ErrAttrHeaderTruncated = errors.New("attribute header truncated")
	// ErrAttrBodyTruncated is returned when a netlink attribute's body is
	// truncated.
	ErrAttrBodyTruncated = errors.New("attribute body truncated")
)
var (
	// ErrNotImplemented is returned when a requested feature is not implemented.
	ErrNotImplemented = errors.New("not implemented")
)
var StringToBondAdSelectMap = map[string]BondAdSelect{
	"stable":    BOND_AD_SELECT_STABLE,
	"bandwidth": BOND_AD_SELECT_BANDWIDTH,
	"count":     BOND_AD_SELECT_COUNT,
}
var StringToBondArpAllTargetsMap = map[string]BondArpAllTargets{
	"any": BOND_ARP_ALL_TARGETS_ANY,
	"all": BOND_ARP_ALL_TARGETS_ALL,
}
var StringToBondArpValidateMap = map[string]BondArpValidate{
	"none":   BOND_ARP_VALIDATE_NONE,
	"active": BOND_ARP_VALIDATE_ACTIVE,
	"backup": BOND_ARP_VALIDATE_BACKUP,
	"all":    BOND_ARP_VALIDATE_ALL,
}
var StringToBondFailOverMacMap = map[string]BondFailOverMac{
	"none":   BOND_FAIL_OVER_MAC_NONE,
	"active": BOND_FAIL_OVER_MAC_ACTIVE,
	"follow": BOND_FAIL_OVER_MAC_FOLLOW,
}
var StringToBondLacpRateMap = map[string]BondLacpRate{
	"slow": BOND_LACP_RATE_SLOW,
	"fast": BOND_LACP_RATE_FAST,
}
var StringToBondModeMap = map[string]BondMode{
	"balance-rr":    BOND_MODE_BALANCE_RR,
	"active-backup": BOND_MODE_ACTIVE_BACKUP,
	"balance-xor":   BOND_MODE_BALANCE_XOR,
	"broadcast":     BOND_MODE_BROADCAST,
	"802.3ad":       BOND_MODE_802_3AD,
	"balance-tlb":   BOND_MODE_BALANCE_TLB,
	"balance-alb":   BOND_MODE_BALANCE_ALB,
}
var StringToBondPrimaryReselectMap = map[string]BondPrimaryReselect{
	"always":  BOND_PRIMARY_RESELECT_ALWAYS,
	"better":  BOND_PRIMARY_RESELECT_BETTER,
	"failure": BOND_PRIMARY_RESELECT_FAILURE,
}
var StringToBondXmitHashPolicyMap = map[string]BondXmitHashPolicy{
	"layer2":   BOND_XMIT_HASH_POLICY_LAYER2,
	"layer3+4": BOND_XMIT_HASH_POLICY_LAYER3_4,
	"layer2+3": BOND_XMIT_HASH_POLICY_LAYER2_3,
	"encap2+3": BOND_XMIT_HASH_POLICY_ENCAP2_3,
	"encap3+4": BOND_XMIT_HASH_POLICY_ENCAP3_4,
}
var StringToIPoIBMode = map[string]IPoIBMode{
	"datagram":  IPOIB_MODE_DATAGRAM,
	"connected": IPOIB_MODE_CONNECTED,
}
var StringToVlanProtocolMap = map[string]VlanProtocol{
	"802.1q":  VLAN_PROTOCOL_8021Q,
	"802.1ad": VLAN_PROTOCOL_8021AD,
}
var VlanProtocolToString = map[VlanProtocol]string{
	VLAN_PROTOCOL_8021Q:  "802.1q",
	VLAN_PROTOCOL_8021AD: "802.1ad",
}

Functions

func AddrAdd

func AddrAdd(link Link, addr *Addr) error

func AddrDel

func AddrDel(link Link, addr *Addr) error

func AddrReplace

func AddrReplace(link Link, addr *Addr) error

func ConntrackDeleteFilter

func ConntrackDeleteFilter(table ConntrackTableType, family InetFamily, filter *ConntrackFilter) (uint, error)

ConntrackDeleteFilter deletes entries on the specified table on the base of the filter conntrack -D [table] parameters Delete conntrack or expectation

func ConntrackTableFlush

func ConntrackTableFlush(table ConntrackTableType) error

ConntrackTableFlush flushes all the flows of a specified table conntrack -F [table] Flush table The flush operation applies to all the family types

func FouAdd

func FouAdd(f Fou) error

func FouDel

func FouDel(f Fou) error

func GetNetNsIdByFd

func GetNetNsIdByFd(fd int) (int, error)

func GetNetNsIdByPid

func GetNetNsIdByPid(pid int) (int, error)

func HandleStr

func HandleStr(handle uint32) string

func LinkAdd

func LinkAdd(link Link) error

func LinkDel

func LinkDel(link Link) error

func LinkSetARPOff

func LinkSetARPOff(link Link) error

func LinkSetARPOn

func LinkSetARPOn(link Link) error

func LinkSetAlias

func LinkSetAlias(link Link, name string) error

func LinkSetDown

func LinkSetDown(link Link) error

func LinkSetFastLeave

func LinkSetFastLeave(link Link, mode bool) error

func LinkSetFlood

func LinkSetFlood(link Link, mode bool) error

func LinkSetGuard

func LinkSetGuard(link Link, mode bool) error

func LinkSetHairpin

func LinkSetHairpin(link Link, mode bool) error

func LinkSetHardwareAddr

func LinkSetHardwareAddr(link Link, hwaddr net.HardwareAddr) error

func LinkSetLearning

func LinkSetLearning(link Link, mode bool) error

func LinkSetMTU

func LinkSetMTU(link Link, mtu int) error

func LinkSetMaster

func LinkSetMaster(link Link, master Link) error

func LinkSetMasterByIndex

func LinkSetMasterByIndex(link Link, masterIndex int) error

func LinkSetName

func LinkSetName(link Link, name string) error

func LinkSetNoMaster

func LinkSetNoMaster(link Link) error

func LinkSetNsFd

func LinkSetNsFd(link Link, fd int) error

func LinkSetNsPid

func LinkSetNsPid(link Link, nspid int) error

func LinkSetRootBlock

func LinkSetRootBlock(link Link, mode bool) error

func LinkSetTxQLen

func LinkSetTxQLen(link Link, qlen int) error

func LinkSetUp

func LinkSetUp(link Link) error

func LinkSetVfHardwareAddr

func LinkSetVfHardwareAddr(link Link, vf int, hwaddr net.HardwareAddr) error

func LinkSetVfRate

func LinkSetVfRate(link Link, vf, minRate, maxRate int) error

func LinkSetVfTxRate

func LinkSetVfTxRate(link Link, vf, rate int) error

func LinkSetVfVlan

func LinkSetVfVlan(link Link, vf, vlan int) error

func LinkSetVfVlanQos

func LinkSetVfVlanQos(link Link, vf, vlan, qos int) error

func LinkSetXdpFd

func LinkSetXdpFd(link Link, fd int) error

func LinkSetXdpFdWithFlags

func LinkSetXdpFdWithFlags(link Link, fd, flags int) error

func MajorMinor

func MajorMinor(handle uint32) (uint16, uint16)

func MakeHandle

func MakeHandle(major, minor uint16) uint32

func NeighAdd

func NeighAdd(neigh *Neigh) error

func NeighAppend

func NeighAppend(neigh *Neigh) error

func NeighDel

func NeighDel(neigh *Neigh) error

func NeighSet

func NeighSet(neigh *Neigh) error

func NewIPNet

func NewIPNet(ip net.IP) *net.IPNet

NewIPNet generates an IPNet from an ip address using a netmask of 32 or 128.

func ParseIPNet

func ParseIPNet(s string) (*net.IPNet, error)

ParseIPNet parses a string in ip/net format and returns a net.IPNet. This is valuable because addresses in netlink are often IPNets and ParseCIDR returns an IPNet with the IP part set to the base IP of the range.

func Percentage2u32

func Percentage2u32(percentage float32) uint32

func RouteAdd

func RouteAdd(route *Route) error

func RouteAppend

func RouteAppend(route *Route) error

func RouteDel

func RouteDel(route *Route) error

func RouteReplace

func RouteReplace(route *Route) error

func SetFastLeave

func SetFastLeave(link Link, mode bool) error

func SetFlood

func SetFlood(link Link, mode bool) error

func SetGuard

func SetGuard(link Link, mode bool) error

func SetHairpin

func SetHairpin(link Link, mode bool) error

func SetLearning

func SetLearning(link Link, mode bool) error

func SetNetNsIdByFd

func SetNetNsIdByFd(fd, nsid int) error

func SetNetNsIdByPid

func SetNetNsIdByPid(pid, nsid int) error

func SetRootBlock

func SetRootBlock(link Link, mode bool) error

func XfrmPolicyAdd

func XfrmPolicyAdd(policy *XfrmPolicy) error

func XfrmPolicyDel

func XfrmPolicyDel(policy *XfrmPolicy) error

func XfrmStateAdd

func XfrmStateAdd(policy *XfrmState) error

func XfrmStateDel

func XfrmStateDel(policy *XfrmState) error

Types

type Action

type Action interface {
	Attrs() *ActionAttrs
	Type() string
}

Action represents an action in any supported filter.

type ActionAttrs

type ActionAttrs struct {
	Index   int
	Capab   int
	Action  TcAct
	Refcnt  int
	Bindcnt int
}

func (ActionAttrs) String

func (q ActionAttrs) String() string

type Addr

type Addr struct {
	*net.IPNet
	Label       string
	Flags       int
	Scope       int
	Peer        *net.IPNet
	Broadcast   net.IP
	PreferedLft int
	ValidLft    int
	LinkIndex   int
}

Addr represents an IP address from netlink. Netlink ip addresses include a mask, so it stores the address as a net.IPNet.

func AddrList

func AddrList(link Link, family int) ([]Addr, error)

func ParseAddr

func ParseAddr(s string) (*Addr, error)

ParseAddr parses the string representation of an address in the form $ip/$netmask $label. The label portion is optional

func (Addr) Equal

func (a Addr) Equal(x Addr) bool

Equal returns true if both Addrs have the same net.IPNet value.

func (Addr) PeerEqual

func (a Addr) PeerEqual(x Addr) bool

func (Addr) String

func (a Addr) String() string

String returns $ip/$netmask $label

type BareUDP

type BareUDP struct {
	LinkAttrs
	Port       uint16
	EtherType  uint16
	SrcPortMin uint16
	MultiProto bool
}

func (*BareUDP) Attrs

func (bareudp *BareUDP) Attrs() *LinkAttrs

func (*BareUDP) Type

func (bareudp *BareUDP) Type() string

type Bond

type Bond struct {
	LinkAttrs
	Mode            BondMode
	ActiveSlave     int
	Miimon          int
	UpDelay         int
	DownDelay       int
	UseCarrier      int
	ArpInterval     int
	ArpIpTargets    []net.IP
	ArpValidate     BondArpValidate
	ArpAllTargets   BondArpAllTargets
	Primary         int
	PrimaryReselect BondPrimaryReselect
	FailOverMac     BondFailOverMac
	XmitHashPolicy  BondXmitHashPolicy
	ResendIgmp      int
	NumPeerNotif    int
	AllSlavesActive int
	MinLinks        int
	LpInterval      int
	PacketsPerSlave int
	LacpRate        BondLacpRate
	AdSelect        BondAdSelect
	// looking at iproute tool AdInfo can only be retrived. It can't be set.
	AdInfo         *BondAdInfo
	AdActorSysPrio int
	AdUserPortKey  int
	AdActorSystem  net.HardwareAddr
	TlbDynamicLb   int
}

Bond representation

func NewLinkBond

func NewLinkBond(atr LinkAttrs) *Bond

func (*Bond) Attrs

func (bond *Bond) Attrs() *LinkAttrs

Attrs implementation.

func (*Bond) Type

func (bond *Bond) Type() string

Type implementation fro Vxlan.

type BondAdInfo

type BondAdInfo struct {
	AggregatorId int
	NumPorts     int
	ActorKey     int
	PartnerKey   int
	PartnerMac   net.HardwareAddr
}

BondAdInfo represents ad info for bond

type BondAdSelect

type BondAdSelect int

BondAdSelect type

const (
	BOND_AD_SELECT_STABLE BondAdSelect = iota
	BOND_AD_SELECT_BANDWIDTH
	BOND_AD_SELECT_COUNT
)

Possible BondAdSelect value

func (BondAdSelect) String

func (b BondAdSelect) String() string

type BondArpAllTargets

type BondArpAllTargets int

BondArpAllTargets type

const (
	BOND_ARP_ALL_TARGETS_ANY BondArpAllTargets = iota
	BOND_ARP_ALL_TARGETS_ALL
)

Possible BondArpAllTargets value

func (BondArpAllTargets) String

func (b BondArpAllTargets) String() string

type BondArpValidate

type BondArpValidate int

BondArpValidate type

const (
	BOND_ARP_VALIDATE_NONE BondArpValidate = iota
	BOND_ARP_VALIDATE_ACTIVE
	BOND_ARP_VALIDATE_BACKUP
	BOND_ARP_VALIDATE_ALL
)

Possible BondArpValidate value

func (BondArpValidate) String

func (b BondArpValidate) String() string

type BondFailOverMac

type BondFailOverMac int

BondFailOverMac type

const (
	BOND_FAIL_OVER_MAC_NONE BondFailOverMac = iota
	BOND_FAIL_OVER_MAC_ACTIVE
	BOND_FAIL_OVER_MAC_FOLLOW
)

Possible BondFailOverMac value

func (BondFailOverMac) String

func (b BondFailOverMac) String() string

type BondLacpRate

type BondLacpRate int

BondLacpRate type

const (
	BOND_LACP_RATE_SLOW BondLacpRate = iota
	BOND_LACP_RATE_FAST
	BOND_LACP_RATE_UNKNOWN
)

Possible BondLacpRate value

func StringToBondLacpRate

func StringToBondLacpRate(s string) BondLacpRate

StringToBondLacpRate returns bond lacp arte, or unknown is the s is invalid.

func (BondLacpRate) String

func (b BondLacpRate) String() string

type BondMode

type BondMode int

BondMode type

const (
	BOND_MODE_BALANCE_RR BondMode = iota
	BOND_MODE_ACTIVE_BACKUP
	BOND_MODE_BALANCE_XOR
	BOND_MODE_BROADCAST
	BOND_MODE_802_3AD
	BOND_MODE_BALANCE_TLB
	BOND_MODE_BALANCE_ALB
	BOND_MODE_UNKNOWN
)

Possible BondMode

func StringToBondMode

func StringToBondMode(s string) BondMode

StringToBondMode returns bond mode, or unknown is the s is invalid.

func (BondMode) String

func (b BondMode) String() string

type BondPrimaryReselect

type BondPrimaryReselect int

BondPrimaryReselect type

const (
	BOND_PRIMARY_RESELECT_ALWAYS BondPrimaryReselect = iota
	BOND_PRIMARY_RESELECT_BETTER
	BOND_PRIMARY_RESELECT_FAILURE
)

Possible BondPrimaryReselect value

func (BondPrimaryReselect) String

func (b BondPrimaryReselect) String() string

type BondSlave

type BondSlave struct {
	State                  BondSlaveState
	MiiStatus              BondSlaveMiiStatus
	LinkFailureCount       uint32
	PermHardwareAddr       net.HardwareAddr
	QueueId                uint16
	AggregatorId           uint16
	AdActorOperPortState   uint8
	AdPartnerOperPortState uint16
}

func (*BondSlave) SlaveType

func (b *BondSlave) SlaveType() string

type BondSlaveMiiStatus

type BondSlaveMiiStatus uint8

BondSlaveMiiStatus represents the values of the IFLA_BOND_SLAVE_MII_STATUS bond slave attribute, which contains the status of MII link monitoring

const (
	//BondLinkUp link is up and running.
	BondLinkUp BondSlaveMiiStatus = iota
	//BondLinkFail link has just gone down.
	BondLinkFail
	//BondLinkDown link has been down for too long time.
	BondLinkDown
	//BondLinkBack link is going back.
	BondLinkBack
)

func (BondSlaveMiiStatus) String

func (s BondSlaveMiiStatus) String() string

type BondSlaveState

type BondSlaveState uint8

BondSlaveState represents the values of the IFLA_BOND_SLAVE_STATE bond slave attribute, which contains the state of the bond slave.

const (
	//BondStateActive Link is active.
	BondStateActive BondSlaveState = iota
	//BondStateBackup Link is backup.
	BondStateBackup
)

func (BondSlaveState) String

func (s BondSlaveState) String() string

type BondXmitHashPolicy

type BondXmitHashPolicy int

BondXmitHashPolicy type

const (
	BOND_XMIT_HASH_POLICY_LAYER2 BondXmitHashPolicy = iota
	BOND_XMIT_HASH_POLICY_LAYER3_4
	BOND_XMIT_HASH_POLICY_LAYER2_3
	BOND_XMIT_HASH_POLICY_ENCAP2_3
	BOND_XMIT_HASH_POLICY_ENCAP3_4
	BOND_XMIT_HASH_POLICY_UNKNOWN
)

Possible BondXmitHashPolicy value

func StringToBondXmitHashPolicy

func StringToBondXmitHashPolicy(s string) BondXmitHashPolicy

StringToBondXmitHashPolicy returns bond lacp arte, or unknown is the s is invalid.

func (BondXmitHashPolicy) String

func (b BondXmitHashPolicy) String() string

type BpfAction

type BpfAction struct {
	ActionAttrs
	Fd   int
	Name string
}

func (*BpfAction) Attrs

func (action *BpfAction) Attrs() *ActionAttrs

func (*BpfAction) Type

func (action *BpfAction) Type() string

type BpfFilter

type BpfFilter struct {
	FilterAttrs
	ClassId      uint32
	Fd           int
	Name         string
	DirectAction bool
	Id           int
	Tag          string
}

func (*BpfFilter) Attrs

func (filter *BpfFilter) Attrs() *FilterAttrs

func (*BpfFilter) Type

func (filter *BpfFilter) Type() string

type Bridge

type Bridge struct {
	LinkAttrs
	MulticastSnooping *bool
	AgeingTime        *uint32
	HelloTime         *uint32
	VlanFiltering     *bool
}

Bridge links are simple linux bridges

func (*Bridge) Attrs

func (bridge *Bridge) Attrs() *LinkAttrs

func (*Bridge) Type

func (bridge *Bridge) Type() string

type Can

type Can struct {
	LinkAttrs

	BitRate            uint32
	SamplePoint        uint32
	TimeQuanta         uint32
	PropagationSegment uint32
	PhaseSegment1      uint32
	PhaseSegment2      uint32
	SyncJumpWidth      uint32
	BitRatePreScaler   uint32

	Name                string
	TimeSegment1Min     uint32
	TimeSegment1Max     uint32
	TimeSegment2Min     uint32
	TimeSegment2Max     uint32
	SyncJumpWidthMax    uint32
	BitRatePreScalerMin uint32
	BitRatePreScalerMax uint32
	BitRatePreScalerInc uint32

	ClockFrequency uint32

	State uint32

	Mask  uint32
	Flags uint32

	TxError uint16
	RxError uint16

	RestartMs uint32
}

func (*Can) Attrs

func (can *Can) Attrs() *LinkAttrs

func (*Can) Type

func (can *Can) Type() string

type Class

type Class interface {
	Attrs() *ClassAttrs
	Type() string
}

Class interfaces for all classes

type ClassAttrs

type ClassAttrs struct {
	LinkIndex  int
	Handle     uint32
	Parent     uint32
	Leaf       uint32
	Statistics *ClassStatistics
}

ClassAttrs represents a netlink class. A filter is associated with a link, has a handle and a parent. The root filter of a device should have a parent == HANDLE_ROOT.

func (ClassAttrs) String

func (q ClassAttrs) String() string

type ClassStatistics

type ClassStatistics struct {
	Basic   *GnetStatsBasic
	Queue   *GnetStatsQueue
	RateEst *GnetStatsRateEst
}

ClassStatistics representation based on generic networking statistics for netlink. See Documentation/networking/gen_stats.txt in Linux source code for more details.

func NewClassStatistics

func NewClassStatistics() *ClassStatistics

NewClassStatistics Construct a ClassStatistics struct which fields are all initialized by 0.

type ConnmarkAction

type ConnmarkAction struct {
	ActionAttrs
	Zone uint16
}

func NewConnmarkAction

func NewConnmarkAction() *ConnmarkAction

func (*ConnmarkAction) Attrs

func (action *ConnmarkAction) Attrs() *ActionAttrs

func (*ConnmarkAction) Type

func (action *ConnmarkAction) Type() string

type ConntrackFilter

type ConntrackFilter struct{}

ConntrackFilter placeholder

type ConntrackFlow

type ConntrackFlow struct{}

ConntrackFlow placeholder

func ConntrackTableList

func ConntrackTableList(table ConntrackTableType, family InetFamily) ([]*ConntrackFlow, error)

ConntrackTableList returns the flow list of a table of a specific family conntrack -L [table] [options] List conntrack or expectation table

type ConntrackTableType

type ConntrackTableType uint8

ConntrackTableType Conntrack table for the netlink operation

type CsumAction

type CsumAction struct {
	ActionAttrs
	UpdateFlags CsumUpdateFlags
}

func NewCsumAction

func NewCsumAction() *CsumAction

func (*CsumAction) Attrs

func (action *CsumAction) Attrs() *ActionAttrs

func (*CsumAction) Type

func (action *CsumAction) Type() string

type CsumUpdateFlags

type CsumUpdateFlags uint32
const (
	TCA_CSUM_UPDATE_FLAG_IPV4HDR CsumUpdateFlags = 1
	TCA_CSUM_UPDATE_FLAG_ICMP    CsumUpdateFlags = 2
	TCA_CSUM_UPDATE_FLAG_IGMP    CsumUpdateFlags = 4
	TCA_CSUM_UPDATE_FLAG_TCP     CsumUpdateFlags = 8
	TCA_CSUM_UPDATE_FLAG_UDP     CsumUpdateFlags = 16
	TCA_CSUM_UPDATE_FLAG_UDPLITE CsumUpdateFlags = 32
	TCA_CSUM_UPDATE_FLAG_SCTP    CsumUpdateFlags = 64
)

type Destination

type Destination interface {
	Family() int
	Decode([]byte) error
	Encode() ([]byte, error)
	String() string
	Equal(Destination) bool
}

type Device

type Device struct {
	LinkAttrs
}

Device links cannot be created via netlink. These links are links created by udev like 'lo' and 'etho0'

func (*Device) Attrs

func (device *Device) Attrs() *LinkAttrs

func (*Device) Type

func (device *Device) Type() string

type Dir

type Dir uint8

Dir is an enum representing an ipsec template direction.

const (
	XFRM_DIR_IN Dir = iota
	XFRM_DIR_OUT
	XFRM_DIR_FWD
	XFRM_SOCKET_IN
	XFRM_SOCKET_OUT
	XFRM_SOCKET_FWD
)

func (Dir) String

func (d Dir) String() string

type Dummy

type Dummy struct {
	LinkAttrs
}

Dummy links are dummy ethernet devices

func (*Dummy) Attrs

func (dummy *Dummy) Attrs() *LinkAttrs

func (*Dummy) Type

func (dummy *Dummy) Type() string

type Encap

type Encap interface {
	Type() int
	Decode([]byte) error
	Encode() ([]byte, error)
	String() string
	Equal(Encap) bool
}

type EncapType

type EncapType uint8

EncapType is an enum representing the optional packet encapsulation.

const (
	XFRM_ENCAP_ESPINUDP_NONIKE EncapType = iota + 1
	XFRM_ENCAP_ESPINUDP
)

func (EncapType) String

func (e EncapType) String() string

type Filter

type Filter interface {
	Attrs() *FilterAttrs
	Type() string
}

type FilterAttrs

type FilterAttrs struct {
	LinkIndex int
	Handle    uint32
	Parent    uint32
	Priority  uint16 // lower is higher priority
	Protocol  uint16 // unix.ETH_P_*
}

FilterAttrs represents a netlink filter. A filter is associated with a link, has a handle and a parent. The root filter of a device should have a parent == HANDLE_ROOT.

func (FilterAttrs) String

func (q FilterAttrs) String() string

type Fou

type Fou struct {
	Family    int
	Port      int
	Protocol  int
	EncapType int
}

func FouList

func FouList(fam int) ([]Fou, error)

type Fq

type Fq struct {
	QdiscAttrs
	PacketLimit     uint32
	FlowPacketLimit uint32
	// In bytes
	Quantum        uint32
	InitialQuantum uint32
	// called RateEnable under the hood
	Pacing          uint32
	FlowDefaultRate uint32
	FlowMaxRate     uint32
	// called BucketsLog under the hood
	Buckets          uint32
	FlowRefillDelay  uint32
	LowRateThreshold uint32
}

Fq is a classless packet scheduler meant to be mostly used for locally generated traffic.

func NewFq

func NewFq(attrs QdiscAttrs) *Fq

func (*Fq) Attrs

func (qdisc *Fq) Attrs() *QdiscAttrs

func (*Fq) String

func (fq *Fq) String() string

func (*Fq) Type

func (qdisc *Fq) Type() string

type FqCodel

type FqCodel struct {
	QdiscAttrs
	Target        uint32
	Limit         uint32
	Interval      uint32
	ECN           uint32
	Flows         uint32
	Quantum       uint32
	CEThreshold   uint32
	DropBatchSize uint32
	MemoryLimit   uint32
}

FQ_Codel (Fair Queuing Controlled Delay) is queuing discipline that combines Fair Queuing with the CoDel AQM scheme.

func NewFqCodel

func NewFqCodel(attrs QdiscAttrs) *FqCodel

func (*FqCodel) Attrs

func (qdisc *FqCodel) Attrs() *QdiscAttrs

func (*FqCodel) String

func (fqcodel *FqCodel) String() string

func (*FqCodel) Type

func (qdisc *FqCodel) Type() string

type FwFilter

type FwFilter struct {
	FilterAttrs
	ClassId uint32
	InDev   string
	Mask    uint32
	Police  *PoliceAction
}

func (*FwFilter) Attrs

func (filter *FwFilter) Attrs() *FilterAttrs

func (*FwFilter) Type

func (filter *FwFilter) Type() string

type GTP

type GTP struct {
	LinkAttrs
	FD0         int
	FD1         int
	Role        int
	PDPHashsize int
}

func (*GTP) Attrs

func (gtp *GTP) Attrs() *LinkAttrs

func (*GTP) Type

func (gtp *GTP) Type() string

type GenericAction

type GenericAction struct {
	ActionAttrs
}

func (*GenericAction) Attrs

func (action *GenericAction) Attrs() *ActionAttrs

func (*GenericAction) Type

func (action *GenericAction) Type() string

type GenericClass

type GenericClass struct {
	ClassAttrs
	ClassType string
}

GenericClass classes represent types that are not currently understood by this netlink library.

func (*GenericClass) Attrs

func (class *GenericClass) Attrs() *ClassAttrs

Attrs return the class attributes

func (*GenericClass) Type

func (class *GenericClass) Type() string

Type return the class type

type GenericFilter

type GenericFilter struct {
	FilterAttrs
	FilterType string
}

GenericFilter filters represent types that are not currently understood by this netlink library.

func (*GenericFilter) Attrs

func (filter *GenericFilter) Attrs() *FilterAttrs

func (*GenericFilter) Type

func (filter *GenericFilter) Type() string
type GenericLink struct {
	LinkAttrs
	LinkType string
}

GenericLink links represent types that are not currently understood by this netlink library.

func (*GenericLink) Attrs

func (generic *GenericLink) Attrs() *LinkAttrs

func (*GenericLink) Type

func (generic *GenericLink) Type() string

type GenericQdisc

type GenericQdisc struct {
	QdiscAttrs
	QdiscType string
}

GenericQdisc qdiscs represent types that are not currently understood by this netlink library.

func (*GenericQdisc) Attrs

func (qdisc *GenericQdisc) Attrs() *QdiscAttrs

func (*GenericQdisc) Type

func (qdisc *GenericQdisc) Type() string

type Geneve

type Geneve struct {
	LinkAttrs
	ID             uint32 // vni
	Remote         net.IP
	Ttl            uint8
	Tos            uint8
	Dport          uint16
	UdpCsum        uint8
	UdpZeroCsum6Tx uint8
	UdpZeroCsum6Rx uint8
	Link           uint32
	FlowBased      bool
}

Geneve devices must specify RemoteIP and ID (VNI) on create https://github.com/torvalds/linux/blob/47ec5303d73ea344e84f46660fff693c57641386/drivers/net/geneve.c#L1209-L1223

func (*Geneve) Attrs

func (geneve *Geneve) Attrs() *LinkAttrs

func (*Geneve) Type

func (geneve *Geneve) Type() string

type GenlFamily

type GenlFamily struct{}

func GenlFamilyGet

func GenlFamilyGet(name string) (*GenlFamily, error)

func GenlFamilyList

func GenlFamilyList() ([]*GenlFamily, error)

type GenlMulticastGroup

type GenlMulticastGroup struct{}

type GenlOp

type GenlOp struct{}

type GnetStatsBasic

type GnetStatsBasic struct {
	Bytes   uint64 // number of seen bytes
	Packets uint32 // number of seen packets
}

GnetStatsBasic Ref: struct gnet_stats_basic { ... }

type GnetStatsQueue

type GnetStatsQueue struct {
	Qlen       uint32 // queue length
	Backlog    uint32 // backlog size of queue
	Drops      uint32 // number of dropped packets
	Requeues   uint32 // number of requues
	Overlimits uint32 // number of enqueues over the limit
}

GnetStatsQueue Ref: struct gnet_stats_queue { ... }

type GnetStatsRateEst

type GnetStatsRateEst struct {
	Bps uint32 // current byte rate
	Pps uint32 // current packet rate
}

GnetStatsRateEst Ref: struct gnet_stats_rate_est { ... }

type GnetStatsRateEst64

type GnetStatsRateEst64 struct {
	Bps uint64 // current byte rate
	Pps uint64 // current packet rate
}

GnetStatsRateEst64 Ref: struct gnet_stats_rate_est64 { ... }

type Gretap

type Gretap struct {
	LinkAttrs
	IKey       uint32
	OKey       uint32
	EncapSport uint16
	EncapDport uint16
	Local      net.IP
	Remote     net.IP
	IFlags     uint16
	OFlags     uint16
	PMtuDisc   uint8
	Ttl        uint8
	Tos        uint8
	EncapType  uint16
	EncapFlags uint16
	Link       uint32
	FlowBased  bool
}

Gretap devices must specify LocalIP and RemoteIP on create

func (*Gretap) Attrs

func (gretap *Gretap) Attrs() *LinkAttrs

func (*Gretap) Type

func (gretap *Gretap) Type() string

type Gretun

type Gretun struct {
	LinkAttrs
	Link       uint32
	IFlags     uint16
	OFlags     uint16
	IKey       uint32
	OKey       uint32
	Local      net.IP
	Remote     net.IP
	Ttl        uint8
	Tos        uint8
	PMtuDisc   uint8
	EncapType  uint16
	EncapFlags uint16
	EncapSport uint16
	EncapDport uint16
}

func (*Gretun) Attrs

func (gretun *Gretun) Attrs() *LinkAttrs

func (*Gretun) Type

func (gretun *Gretun) Type() string

type Handle

type Handle struct{}

func NewHandle

func NewHandle(nlFamilies ...int) (*Handle, error)

func NewHandleAt

func NewHandleAt(ns netns.NsHandle, nlFamilies ...int) (*Handle, error)

func NewHandleAtFrom

func NewHandleAtFrom(newNs, curNs netns.NsHandle) (*Handle, error)

func (*Handle) AddrAdd

func (h *Handle) AddrAdd(link Link, addr *Addr) error

func (*Handle) AddrDel

func (h *Handle) AddrDel(link Link, addr *Addr) error

func (*Handle) AddrList

func (h *Handle) AddrList(link Link, family int) ([]Addr, error)

func (*Handle) ClassAdd

func (h *Handle) ClassAdd(class Class) error

func (*Handle) ClassChange

func (h *Handle) ClassChange(class Class) error

func (*Handle) ClassDel

func (h *Handle) ClassDel(class Class) error

func (*Handle) ClassList

func (h *Handle) ClassList(link Link, parent uint32) ([]Class, error)

func (*Handle) ClassReplace

func (h *Handle) ClassReplace(class Class) error

func (*Handle) Close

func (h *Handle) Close()

func (*Handle) ConntrackDeleteFilter

func (h *Handle) ConntrackDeleteFilter(table ConntrackTableType, family InetFamily, filter *ConntrackFilter) (uint, error)

ConntrackDeleteFilter deletes entries on the specified table on the base of the filter using the netlink handle passed conntrack -D [table] parameters Delete conntrack or expectation

func (*Handle) ConntrackTableFlush

func (h *Handle) ConntrackTableFlush(table ConntrackTableType) error

ConntrackTableFlush flushes all the flows of a specified table using the netlink handle passed conntrack -F [table] Flush table The flush operation applies to all the family types

func (*Handle) ConntrackTableList

func (h *Handle) ConntrackTableList(table ConntrackTableType, family InetFamily) ([]*ConntrackFlow, error)

ConntrackTableList returns the flow list of a table of a specific family using the netlink handle passed conntrack -L [table] [options] List conntrack or expectation table

func (*Handle) Delete

func (h *Handle) Delete()

func (*Handle) FilterAdd

func (h *Handle) FilterAdd(filter Filter) error

func (*Handle) FilterDel

func (h *Handle) FilterDel(filter Filter) error

func (*Handle) FilterList

func (h *Handle) FilterList(link Link, parent uint32) ([]Filter, error)

func (*Handle) GenlFamilyGet

func (h *Handle) GenlFamilyGet(name string) (*GenlFamily, error)

func (*Handle) GenlFamilyList

func (h *Handle) GenlFamilyList() ([]*GenlFamily, error)

func (*Handle) LinkAdd

func (h *Handle) LinkAdd(link Link) error

func (*Handle) LinkByAlias

func (h *Handle) LinkByAlias(alias string) (Link, error)

func (*Handle) LinkByIndex

func (h *Handle) LinkByIndex(index int) (Link, error)

func (*Handle) LinkByName

func (h *Handle) LinkByName(name string) (Link, error)

func (*Handle) LinkDel

func (h *Handle) LinkDel(link Link) error
func (h *Handle) LinkList() ([]Link, error)

func (*Handle) LinkSetAlias

func (h *Handle) LinkSetAlias(link Link, name string) error

func (*Handle) LinkSetDown

func (h *Handle) LinkSetDown(link Link) error

func (*Handle) LinkSetFastLeave

func (h *Handle) LinkSetFastLeave(link Link, mode bool) error

func (*Handle) LinkSetFlood

func (h *Handle) LinkSetFlood(link Link, mode bool) error

func (*Handle) LinkSetGroup

func (h *Handle) LinkSetGroup(link Link, group int) error

func (*Handle) LinkSetGuard

func (h *Handle) LinkSetGuard(link Link, mode bool) error

func (*Handle) LinkSetHairpin

func (h *Handle) LinkSetHairpin(link Link, mode bool) error

func (*Handle) LinkSetHardwareAddr

func (h *Handle) LinkSetHardwareAddr(link Link, hwaddr net.HardwareAddr) error

func (*Handle) LinkSetLearning

func (h *Handle) LinkSetLearning(link Link, mode bool) error

func (*Handle) LinkSetMTU

func (h *Handle) LinkSetMTU(link Link, mtu int) error

func (*Handle) LinkSetMaster

func (h *Handle) LinkSetMaster(link Link, master Link) error

func (*Handle) LinkSetMasterByIndex

func (h *Handle) LinkSetMasterByIndex(link Link, masterIndex int) error

func (*Handle) LinkSetName

func (h *Handle) LinkSetName(link Link, name string) error

func (*Handle) LinkSetNoMaster

func (h *Handle) LinkSetNoMaster(link Link) error

func (*Handle) LinkSetNsFd

func (h *Handle) LinkSetNsFd(link Link, fd int) error

func (*Handle) LinkSetNsPid

func (h *Handle) LinkSetNsPid(link Link, nspid int) error

func (*Handle) LinkSetRootBlock

func (h *Handle) LinkSetRootBlock(link Link, mode bool) error

func (*Handle) LinkSetTxQLen

func (h *Handle) LinkSetTxQLen(link Link, qlen int) error

func (*Handle) LinkSetUp

func (h *Handle) LinkSetUp(link Link) error

func (*Handle) LinkSetVfHardwareAddr

func (h *Handle) LinkSetVfHardwareAddr(link Link, vf int, hwaddr net.HardwareAddr) error

func (*Handle) LinkSetVfRate

func (h *Handle) LinkSetVfRate(link Link, vf, minRate, maxRate int) error

func (*Handle) LinkSetVfTxRate

func (h *Handle) LinkSetVfTxRate(link Link, vf, rate int) error

func (*Handle) LinkSetVfVlan

func (h *Handle) LinkSetVfVlan(link Link, vf, vlan int) error

func (*Handle) LinkSetVfVlanQos

func (h *Handle) LinkSetVfVlanQos(link Link, vf, vlan, qos int) error

func (*Handle) NeighAdd

func (h *Handle) NeighAdd(neigh *Neigh) error

func (*Handle) NeighAppend

func (h *Handle) NeighAppend(neigh *Neigh) error

func (*Handle) NeighDel

func (h *Handle) NeighDel(neigh *Neigh) error

func (*Handle) NeighList

func (h *Handle) NeighList(linkIndex, family int) ([]Neigh, error)

func (*Handle) NeighProxyList

func (h *Handle) NeighProxyList(linkIndex, family int) ([]Neigh, error)

func (*Handle) NeighSet

func (h *Handle) NeighSet(neigh *Neigh) error

func (*Handle) RouteAdd

func (h *Handle) RouteAdd(route *Route) error

func (*Handle) RouteAppend

func (h *Handle) RouteAppend(route *Route) error

func (*Handle) RouteDel

func (h *Handle) RouteDel(route *Route) error

func (*Handle) RouteGet

func (h *Handle) RouteGet(destination net.IP) ([]Route, error)

func (*Handle) RouteList

func (h *Handle) RouteList(link Link, family int) ([]Route, error)

func (*Handle) RouteListFiltered

func (h *Handle) RouteListFiltered(family int, filter *Route, filterMask uint64) ([]Route, error)

func (*Handle) RouteReplace

func (h *Handle) RouteReplace(route *Route) error

func (*Handle) RuleAdd

func (h *Handle) RuleAdd(rule *Rule) error

func (*Handle) RuleDel

func (h *Handle) RuleDel(rule *Rule) error

func (*Handle) RuleList

func (h *Handle) RuleList(family int) ([]Rule, error)

func (*Handle) SetPromiscOff

func (h *Handle) SetPromiscOff(link Link) error

func (*Handle) SetPromiscOn

func (h *Handle) SetPromiscOn(link Link) error

func (*Handle) SetSocketTimeout

func (h *Handle) SetSocketTimeout(to time.Duration) error

func (*Handle) SupportsNetlinkFamily

func (h *Handle) SupportsNetlinkFamily(nlFamily int) bool

type Hfsc

type Hfsc struct {
	QdiscAttrs
	Defcls uint16
}

func NewHfsc

func NewHfsc(attrs QdiscAttrs) *Hfsc

func (*Hfsc) Attrs

func (hfsc *Hfsc) Attrs() *QdiscAttrs

func (*Hfsc) String

func (hfsc *Hfsc) String() string

func (*Hfsc) Type

func (hfsc *Hfsc) Type() string

type HfscClass

type HfscClass struct {
	ClassAttrs
	Rsc ServiceCurve
	Fsc ServiceCurve
	Usc ServiceCurve
}

HfscClass is a representation of the HFSC class

func NewHfscClass

func NewHfscClass(attrs ClassAttrs) *HfscClass

NewHfscClass returns a new HFSC struct with the set parameters

func (*HfscClass) Attrs

func (hfsc *HfscClass) Attrs() *ClassAttrs

Attrs return the Hfsc parameters

func (*HfscClass) SetFsc

func (hfsc *HfscClass) SetFsc(m1 uint32, d uint32, m2 uint32)

SetFsc sets the Fsc curve. The bandwidth (m1 and m2) is specified in bits and the delay in seconds.

func (*HfscClass) SetLS

func (hfsc *HfscClass) SetLS(m1 uint32, d uint32, m2 uint32)

SetLS implements the LS from the `tc` CLI. This function behaves the same as if one would set the USC through the `tc` command-line tool. This means bandwidth (m1 and m2) is specified in bits and the delay in ms.

func (*HfscClass) SetRsc

func (hfsc *HfscClass) SetRsc(m1 uint32, d uint32, m2 uint32)

SetRsc sets the Rsc curve. The bandwidth (m1 and m2) is specified in bits and the delay in seconds.

func (*HfscClass) SetSC

func (hfsc *HfscClass) SetSC(m1 uint32, d uint32, m2 uint32)

SetSC implements the SC from the `tc` CLI. This function behaves the same as if one would set the USC through the `tc` command-line tool. This means bandwidth (m1 and m2) is specified in bits and the delay in ms.

func (*HfscClass) SetUL

func (hfsc *HfscClass) SetUL(m1 uint32, d uint32, m2 uint32)

SetUL implements the UL from the `tc` CLI. This function behaves the same as if one would set the USC through the `tc` command-line tool. This means bandwidth (m1 and m2) is specified in bits and the delay in ms.

func (*HfscClass) SetUsc

func (hfsc *HfscClass) SetUsc(m1 uint32, d uint32, m2 uint32)

SetUsc sets the USC curve. The bandwidth (m1 and m2) is specified in bits and the delay in seconds.

func (*HfscClass) String

func (hfsc *HfscClass) String() string

String() returns a string that contains the information and attributes of the HFSC class

func (*HfscClass) Type

func (hfsc *HfscClass) Type() string

Type return the type of the class

type Htb

type Htb struct {
	QdiscAttrs
	Version      uint32
	Rate2Quantum uint32
	Defcls       uint32
	Debug        uint32
	DirectPkts   uint32
}

Htb is a classful qdisc that rate limits based on tokens

func NewHtb

func NewHtb(attrs QdiscAttrs) *Htb

func (*Htb) Attrs

func (qdisc *Htb) Attrs() *QdiscAttrs

func (*Htb) Type

func (qdisc *Htb) Type() string

type HtbClass

type HtbClass struct {
	ClassAttrs
	Rate    uint64
	Ceil    uint64
	Buffer  uint32
	Cbuffer uint32
	Quantum uint32
	Level   uint32
	Prio    uint32
}

HtbClass represents an Htb class

func (*HtbClass) Attrs

func (q *HtbClass) Attrs() *ClassAttrs

Attrs returns the class attributes

func (HtbClass) String

func (q HtbClass) String() string

func (*HtbClass) Type

func (q *HtbClass) Type() string

Type return the class type

type HtbClassAttrs

type HtbClassAttrs struct {
	// TODO handle all attributes
	Rate    uint64
	Ceil    uint64
	Buffer  uint32
	Cbuffer uint32
	Quantum uint32
	Level   uint32
	Prio    uint32
}

HtbClassAttrs stores the attributes of HTB class

func (HtbClassAttrs) String

func (q HtbClassAttrs) String() string

type IP6TunnelFlag

type IP6TunnelFlag uint16

from https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/ip6_tunnel.h#L12

type IPVlan

type IPVlan struct {
	LinkAttrs
	Mode IPVlanMode
	Flag IPVlanFlag
}

func (*IPVlan) Attrs

func (ipvlan *IPVlan) Attrs() *LinkAttrs

func (*IPVlan) Type

func (ipvlan *IPVlan) Type() string

type IPVlanFlag

type IPVlanFlag uint16
const (
	IPVLAN_FLAG_BRIDGE IPVlanFlag = iota
	IPVLAN_FLAG_PRIVATE
	IPVLAN_FLAG_VEPA
)

type IPVlanMode

type IPVlanMode uint16
const (
	IPVLAN_MODE_L2 IPVlanMode = iota
	IPVLAN_MODE_L3
	IPVLAN_MODE_L3S
	IPVLAN_MODE_MAX
)

type IPVtap

type IPVtap struct {
	IPVlan
}

IPVtap - IPVtap is a virtual interfaces based on ipvlan

func (*IPVtap) Attrs

func (ipvtap *IPVtap) Attrs() *LinkAttrs

func (IPVtap) Type

func (ipvtap IPVtap) Type() string

type IPoIB

type IPoIB struct {
	LinkAttrs
	Pkey   uint16
	Mode   IPoIBMode
	Umcast uint16
}

func (*IPoIB) Attrs

func (ipoib *IPoIB) Attrs() *LinkAttrs

func (*IPoIB) Type

func (ipoib *IPoIB) Type() string

type IPoIBMode

type IPoIBMode uint16

func (*IPoIBMode) String

func (m *IPoIBMode) String() string

type Ifb

type Ifb struct {
	LinkAttrs
}

Ifb links are advanced dummy devices for packet filtering

func (*Ifb) Attrs

func (ifb *Ifb) Attrs() *LinkAttrs

func (*Ifb) Type

func (ifb *Ifb) Type() string

type InetDiagTCPInfoResp

type InetDiagTCPInfoResp struct {
	InetDiagMsg *Socket
	TCPInfo     *TCPInfo
	TCPBBRInfo  *TCPBBRInfo
}

type InetFamily

type InetFamily uint8

InetFamily Family type

type Ingress

type Ingress struct {
	QdiscAttrs
}

Ingress is a qdisc for adding ingress filters

func (*Ingress) Attrs

func (qdisc *Ingress) Attrs() *QdiscAttrs

func (*Ingress) Type

func (qdisc *Ingress) Type() string

type Ip6tnl

type Ip6tnl struct {
	LinkAttrs
	Link       uint32
	Local      net.IP
	Remote     net.IP
	Ttl        uint8
	Tos        uint8
	Flags      uint32
	Proto      uint8
	FlowInfo   uint32
	EncapLimit uint8
	EncapType  uint16
	EncapFlags uint16
	EncapSport uint16
	EncapDport uint16
}

func (*Ip6tnl) Attrs

func (ip6tnl *Ip6tnl) Attrs() *LinkAttrs

func (*Ip6tnl) Type

func (ip6tnl *Ip6tnl) Type() string

type Iptun

type Iptun struct {
	LinkAttrs
	Ttl        uint8
	Tos        uint8
	PMtuDisc   uint8
	Link       uint32
	Local      net.IP
	Remote     net.IP
	EncapSport uint16
	EncapDport uint16
	EncapType  uint16
	EncapFlags uint16
	FlowBased  bool
	Proto      uint8
}

func (*Iptun) Attrs

func (iptun *Iptun) Attrs() *LinkAttrs

func (*Iptun) Type

func (iptun *Iptun) Type() string
type Link interface {
	Attrs() *LinkAttrs
	Type() string
}

Link represents a link device from netlink. Shared link attributes like name may be retrieved using the Attrs() method. Unique data can be retrieved by casting the object to the proper type.

func LinkByAlias

func LinkByAlias(alias string) (Link, error)

func LinkByIndex

func LinkByIndex(index int) (Link, error)

func LinkByName

func LinkByName(name string) (Link, error)
func LinkList() ([]Link, error)

type LinkAttrs

type LinkAttrs struct {
	Index        int
	MTU          int
	TxQLen       int // Transmit Queue Length
	Name         string
	HardwareAddr net.HardwareAddr
	Flags        net.Flags
	RawFlags     uint32
	ParentIndex  int         // index of the parent link device
	MasterIndex  int         // must be the index of a bridge
	Namespace    interface{} // nil | NsPid | NsFd
	Alias        string
	Statistics   *LinkStatistics
	Promisc      int
	Allmulti     int
	Multi        int
	Xdp          *LinkXdp
	EncapType    string
	Protinfo     *Protinfo
	OperState    LinkOperState
	PhysSwitchID int
	NetNsID      int
	NumTxQueues  int
	NumRxQueues  int
	GSOMaxSize   uint32
	GSOMaxSegs   uint32
	Vfs          []VfInfo // virtual functions available on link
	Group        uint32
	Slave        LinkSlave
}

LinkAttrs represents data shared by most link types

func NewLinkAttrs

func NewLinkAttrs() LinkAttrs

NewLinkAttrs returns LinkAttrs structure filled with default values

type LinkNotFoundError

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

LinkNotFoundError wraps the various not found errors when getting/reading links. This is intended for better error handling by dependent code so that "not found error" can be distinguished from other errors

type LinkOperState

type LinkOperState uint8

LinkOperState represents the values of the IFLA_OPERSTATE link attribute, which contains the RFC2863 state of the interface.

func (LinkOperState) String

func (s LinkOperState) String() string

type LinkSlave

type LinkSlave interface {
	SlaveType() string
}

LinkSlave represents a slave device.

type LinkStatistics

type LinkStatistics LinkStatistics64

type LinkStatistics32

type LinkStatistics32 struct {
	RxPackets         uint32
	TxPackets         uint32
	RxBytes           uint32
	TxBytes           uint32
	RxErrors          uint32
	TxErrors          uint32
	RxDropped         uint32
	TxDropped         uint32
	Multicast         uint32
	Collisions        uint32
	RxLengthErrors    uint32
	RxOverErrors      uint32
	RxCrcErrors       uint32
	RxFrameErrors     uint32
	RxFifoErrors      uint32
	RxMissedErrors    uint32
	TxAbortedErrors   uint32
	TxCarrierErrors   uint32
	TxFifoErrors      uint32
	TxHeartbeatErrors uint32
	TxWindowErrors    uint32
	RxCompressed      uint32
	TxCompressed      uint32
}

Ref: struct rtnl_link_stats {...}

type LinkStatistics64

type LinkStatistics64 struct {
	RxPackets         uint64
	TxPackets         uint64
	RxBytes           uint64
	TxBytes           uint64
	RxErrors          uint64
	TxErrors          uint64
	RxDropped         uint64
	TxDropped         uint64
	Multicast         uint64
	Collisions        uint64
	RxLengthErrors    uint64
	RxOverErrors      uint64
	RxCrcErrors       uint64
	RxFrameErrors     uint64
	RxFifoErrors      uint64
	RxMissedErrors    uint64
	TxAbortedErrors   uint64
	TxCarrierErrors   uint64
	TxFifoErrors      uint64
	TxHeartbeatErrors uint64
	TxWindowErrors    uint64
	RxCompressed      uint64
	TxCompressed      uint64
}

Ref: struct rtnl_link_stats64 {...}

type LinkXdp

type LinkXdp struct {
	Fd         int
	Attached   bool
	AttachMode uint32
	Flags      uint32
	ProgId     uint32
}

type Macvlan

type Macvlan struct {
	LinkAttrs
	Mode MacvlanMode

	// MACAddrs is only populated for Macvlan SOURCE links
	MACAddrs []net.HardwareAddr
}

Macvlan links have ParentIndex set in their Attrs()

func (*Macvlan) Attrs

func (macvlan *Macvlan) Attrs() *LinkAttrs

func (*Macvlan) Type

func (macvlan *Macvlan) Type() string

type MacvlanMode

type MacvlanMode uint16
const (
	MACVLAN_MODE_DEFAULT MacvlanMode = iota
	MACVLAN_MODE_PRIVATE
	MACVLAN_MODE_VEPA
	MACVLAN_MODE_BRIDGE
	MACVLAN_MODE_PASSTHRU
	MACVLAN_MODE_SOURCE
)

type Macvtap

type Macvtap struct {
	Macvlan
}

Macvtap - macvtap is a virtual interfaces based on macvlan

func (Macvtap) Type

func (macvtap Macvtap) Type() string

type MatchAll

type MatchAll struct {
	FilterAttrs
	ClassId uint32
	Actions []Action
}

MatchAll filters match all packets

func (*MatchAll) Attrs

func (filter *MatchAll) Attrs() *FilterAttrs

func (*MatchAll) Type

func (filter *MatchAll) Type() string

type MirredAct

type MirredAct uint8
const (
	TCA_EGRESS_REDIR   MirredAct = 1 /* packet redirect to EGRESS*/
	TCA_EGRESS_MIRROR  MirredAct = 2 /* mirror packet to EGRESS */
	TCA_INGRESS_REDIR  MirredAct = 3 /* packet redirect to INGRESS*/
	TCA_INGRESS_MIRROR MirredAct = 4 /* mirror packet to INGRESS */
)

func (MirredAct) String

func (a MirredAct) String() string

type MirredAction

type MirredAction struct {
	ActionAttrs
	MirredAction MirredAct
	Ifindex      int
}

func NewMirredAction

func NewMirredAction(redirIndex int) *MirredAction

func (*MirredAction) Attrs

func (action *MirredAction) Attrs() *ActionAttrs

func (*MirredAction) Type

func (action *MirredAction) Type() string

type Mode

type Mode uint8

Mode is an enum representing an ipsec transport.

const (
	XFRM_MODE_TRANSPORT Mode = iota
	XFRM_MODE_TUNNEL
	XFRM_MODE_ROUTEOPTIMIZATION
	XFRM_MODE_IN_TRIGGER
	XFRM_MODE_BEET
	XFRM_MODE_MAX
)

func (Mode) String

func (m Mode) String() string

type Neigh

type Neigh struct {
	LinkIndex    int
	Family       int
	State        int
	Type         int
	Flags        int
	FlagsExt     int
	IP           net.IP
	HardwareAddr net.HardwareAddr
	LLIPAddr     net.IP //Used in the case of NHRP
	Vlan         int
	VNI          int
	MasterIndex  int
}

Neigh represents a link layer neighbor from netlink.

func NeighDeserialize

func NeighDeserialize(m []byte) (*Neigh, error)

func NeighList

func NeighList(linkIndex, family int) ([]Neigh, error)

func (*Neigh) String

func (neigh *Neigh) String() string

String returns $ip/$hwaddr $label

type NeighUpdate

type NeighUpdate struct {
	Type uint16
	Neigh
}

NeighUpdate is sent when a neighbor changes - type is RTM_NEWNEIGH or RTM_DELNEIGH.

type Netem

type Netem struct {
	QdiscAttrs
	Latency       uint32
	DelayCorr     uint32
	Limit         uint32
	Loss          uint32
	LossCorr      uint32
	Gap           uint32
	Duplicate     uint32
	DuplicateCorr uint32
	Jitter        uint32
	ReorderProb   uint32
	ReorderCorr   uint32
	CorruptProb   uint32
	CorruptCorr   uint32
}

func (*Netem) Attrs

func (qdisc *Netem) Attrs() *QdiscAttrs

func (*Netem) String

func (netem *Netem) String() string

func (*Netem) Type

func (qdisc *Netem) Type() string

type NetemQdiscAttrs

type NetemQdiscAttrs struct {
	Latency       uint32  // in us
	DelayCorr     float32 // in %
	Limit         uint32
	Loss          float32 // in %
	LossCorr      float32 // in %
	Gap           uint32
	Duplicate     float32 // in %
	DuplicateCorr float32 // in %
	Jitter        uint32  // in us
	ReorderProb   float32 // in %
	ReorderCorr   float32 // in %
	CorruptProb   float32 // in %
	CorruptCorr   float32 // in %
}

func (NetemQdiscAttrs) String

func (q NetemQdiscAttrs) String() string

type NextHopFlag

type NextHopFlag int

type NexthopInfo

type NexthopInfo struct {
	LinkIndex int
	Hops      int
	Gw        net.IP
	Flags     int
	NewDst    Destination
	Encap     Encap
	Via       Destination
}

func (NexthopInfo) Equal

func (n NexthopInfo) Equal(x NexthopInfo) bool

func (*NexthopInfo) ListFlags

func (n *NexthopInfo) ListFlags() []string

func (*NexthopInfo) String

func (n *NexthopInfo) String() string

type NsFd

type NsFd int

type NsPid

type NsPid int

type PfifoFast

type PfifoFast struct {
	QdiscAttrs
	Bands       uint8
	PriorityMap [PRIORITY_MAP_LEN]uint8
}

PfifoFast is the default qdisc created by the kernel if one has not been defined for the interface

func (*PfifoFast) Attrs

func (qdisc *PfifoFast) Attrs() *QdiscAttrs

func (*PfifoFast) Type

func (qdisc *PfifoFast) Type() string

type PoliceAction

type PoliceAction struct {
	ActionAttrs
	Rate            uint32 // in byte per second
	Burst           uint32 // in byte
	RCellLog        int
	Mtu             uint32
	Mpu             uint16 // in byte
	PeakRate        uint32 // in byte per second
	PCellLog        int
	AvRate          uint32 // in byte per second
	Overhead        uint16
	LinkLayer       int
	ExceedAction    TcPolAct
	NotExceedAction TcPolAct
}

func NewPoliceAction

func NewPoliceAction() *PoliceAction

func (*PoliceAction) Attrs

func (action *PoliceAction) Attrs() *ActionAttrs

func (*PoliceAction) Type

func (action *PoliceAction) Type() string

type PolicyAction

type PolicyAction uint8

PolicyAction is an enum representing an ipsec policy action.

const (
	XFRM_POLICY_ALLOW PolicyAction = 0
	XFRM_POLICY_BLOCK PolicyAction = 1
)

func (PolicyAction) String

func (a PolicyAction) String() string

type Prio

type Prio struct {
	QdiscAttrs
	Bands       uint8
	PriorityMap [PRIORITY_MAP_LEN]uint8
}

Prio is a basic qdisc that works just like PfifoFast

func NewPrio

func NewPrio(attrs QdiscAttrs) *Prio

func (*Prio) Attrs

func (qdisc *Prio) Attrs() *QdiscAttrs

func (*Prio) Type

func (qdisc *Prio) Type() string

type Protinfo

type Protinfo struct {
	Hairpin      bool
	Guard        bool
	FastLeave    bool
	RootBlock    bool
	Learning     bool
	Flood        bool
	ProxyArp     bool
	ProxyArpWiFi bool
}

Protinfo represents bridge flags from netlink.

func (*Protinfo) String

func (prot *Protinfo) String() string

String returns a list of enabled flags

type Proto

type Proto uint8

Proto is an enum representing an ipsec protocol.

const (
	XFRM_PROTO_ROUTE2    Proto = unix.IPPROTO_ROUTING
	XFRM_PROTO_ESP       Proto = unix.IPPROTO_ESP
	XFRM_PROTO_AH        Proto = unix.IPPROTO_AH
	XFRM_PROTO_HAO       Proto = unix.IPPROTO_DSTOPTS
	XFRM_PROTO_COMP      Proto = 0x6c // NOTE not defined on darwin
	XFRM_PROTO_IPSEC_ANY Proto = unix.IPPROTO_RAW
)

func (Proto) String

func (p Proto) String() string

type Qdisc

type Qdisc interface {
	Attrs() *QdiscAttrs
	Type() string
}

type QdiscAttrs

type QdiscAttrs struct {
	LinkIndex int
	Handle    uint32
	Parent    uint32
	Refcnt    uint32 // read only
}

QdiscAttrs represents a netlink qdisc. A qdisc is associated with a link, has a handle, a parent and a refcnt. The root qdisc of a device should have parent == HANDLE_ROOT.

func (QdiscAttrs) String

func (q QdiscAttrs) String() string

type Route

type Route struct {
	LinkIndex        int
	ILinkIndex       int
	Scope            Scope
	Dst              *net.IPNet
	Src              net.IP
	Gw               net.IP
	MultiPath        []*NexthopInfo
	Protocol         RouteProtocol
	Priority         int
	Family           int
	Table            int
	Type             int
	Tos              int
	Flags            int
	MPLSDst          *int
	NewDst           Destination
	Encap            Encap
	Via              Destination
	Realm            int
	MTU              int
	Window           int
	Rtt              int
	RttVar           int
	Ssthresh         int
	Cwnd             int
	AdvMSS           int
	Reordering       int
	Hoplimit         int
	InitCwnd         int
	Features         int
	RtoMin           int
	InitRwnd         int
	QuickACK         int
	Congctl          string
	FastOpenNoCookie int
}

Route represents a netlink route.

func RouteGet

func RouteGet(destination net.IP) ([]Route, error)

func RouteList

func RouteList(link Link, family int) ([]Route, error)

func RouteListFiltered

func RouteListFiltered(family int, filter *Route, filterMask uint64) ([]Route, error)

func (*Route) ClearFlag

func (r *Route) ClearFlag(flag NextHopFlag)

func (Route) Equal

func (r Route) Equal(x Route) bool

func (*Route) ListFlags

func (r *Route) ListFlags() []string

func (*Route) SetFlag

func (r *Route) SetFlag(flag NextHopFlag)

func (Route) String

func (r Route) String() string

type RouteProtocol

type RouteProtocol int

Protocol describe what was the originator of the route

func (RouteProtocol) String

func (p RouteProtocol) String() string

type RouteUpdate

type RouteUpdate struct {
	Type uint16
	Route
}

RouteUpdate is sent when a route changes - type is RTM_NEWROUTE or RTM_DELROUTE

type Rule

type Rule struct {
	Priority          int
	Family            int
	Table             int
	Mark              int
	Mask              int
	Tos               uint
	TunID             uint
	Goto              int
	Src               *net.IPNet
	Dst               *net.IPNet
	Flow              int
	IifName           string
	OifName           string
	SuppressIfgroup   int
	SuppressPrefixlen int
	Invert            bool
	Dport             *RulePortRange
	Sport             *RulePortRange
	IPProto           int
}

Rule represents a netlink rule.

func NewRule

func NewRule() *Rule

NewRule return empty rules.

func (Rule) String

func (r Rule) String() string

type RulePortRange

type RulePortRange struct {
	Start uint16
	End   uint16
}

RulePortRange represents rule sport/dport range.

func NewRulePortRange

func NewRulePortRange(start, end uint16) *RulePortRange

NewRulePortRange creates rule sport/dport range.

type Scope

type Scope uint8

Scope is an enum representing a route scope.

func (Scope) String

func (s Scope) String() string

type ServiceCurve

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

ServiceCurve is a nondecreasing function of some time unit, returning the amount of service (an allowed or allocated amount of bandwidth) at some specific point in time. The purpose of it should be subconsciously obvious: if a class was allowed to transfer not less than the amount specified by its service curve, then the service curve is not violated.

func (*ServiceCurve) Attrs

func (c *ServiceCurve) Attrs() (uint32, uint32, uint32)

Attrs return the parameters of the service curve

func (*ServiceCurve) Burst

func (c *ServiceCurve) Burst() uint32

Burst returns the burst rate (m1) of the curve

func (*ServiceCurve) Delay

func (c *ServiceCurve) Delay() uint32

Delay return the delay (d) of the curve

func (*ServiceCurve) Rate

func (c *ServiceCurve) Rate() uint32

Rate returns the rate (m2) of the curve

type Sfq

type Sfq struct {
	QdiscAttrs
	// TODO: Only the simplified options for SFQ are handled here. Support for the extended one can be added later.
	Quantum uint8
	Perturb uint8
	Limit   uint32
	Divisor uint8
}

func (*Sfq) Attrs

func (qdisc *Sfq) Attrs() *QdiscAttrs

func (*Sfq) String

func (sfq *Sfq) String() string

func (*Sfq) Type

func (qdisc *Sfq) Type() string

type Sittun

type Sittun struct {
	LinkAttrs
	Link       uint32
	Ttl        uint8
	Tos        uint8
	PMtuDisc   uint8
	Proto      uint8
	Local      net.IP
	Remote     net.IP
	EncapLimit uint8
	EncapType  uint16
	EncapFlags uint16
	EncapSport uint16
	EncapDport uint16
}

func (*Sittun) Attrs

func (sittun *Sittun) Attrs() *LinkAttrs

func (*Sittun) Type

func (sittun *Sittun) Type() string

type SkbEditAction

type SkbEditAction struct {
	ActionAttrs
	QueueMapping *uint16
	PType        *uint16
	Priority     *uint32
	Mark         *uint32
}

func NewSkbEditAction

func NewSkbEditAction() *SkbEditAction

func (*SkbEditAction) Attrs

func (action *SkbEditAction) Attrs() *ActionAttrs

func (*SkbEditAction) Type

func (action *SkbEditAction) Type() string

type Socket

type Socket struct {
	Family  uint8
	State   uint8
	Timer   uint8
	Retrans uint8
	ID      SocketID
	Expires uint32
	RQueue  uint32
	WQueue  uint32
	UID     uint32
	INode   uint32
}

Socket represents a netlink socket.

func SocketGet

func SocketGet(local, remote net.Addr) (*Socket, error)

type SocketID

type SocketID struct {
	SourcePort      uint16
	DestinationPort uint16
	Source          net.IP
	Destination     net.IP
	Interface       uint32
	Cookie          [2]uint32
}

SocketID identifies a single socket.

type TCPBBRInfo

type TCPBBRInfo struct {
	BBRBW         uint64
	BBRMinRTT     uint32
	BBRPacingGain uint32
	BBRCwndGain   uint32
}

type TCPInfo

type TCPInfo struct {
	State                     uint8
	Ca_state                  uint8
	Retransmits               uint8
	Probes                    uint8
	Backoff                   uint8
	Options                   uint8
	Snd_wscale                uint8 // no uint4
	Rcv_wscale                uint8
	Delivery_rate_app_limited uint8
	Fastopen_client_fail      uint8
	Rto                       uint32
	Ato                       uint32
	Snd_mss                   uint32
	Rcv_mss                   uint32
	Unacked                   uint32
	Sacked                    uint32
	Lost                      uint32
	Retrans                   uint32
	Fackets                   uint32
	Last_data_sent            uint32
	Last_ack_sent             uint32
	Last_data_recv            uint32
	Last_ack_recv             uint32
	Pmtu                      uint32
	Rcv_ssthresh              uint32
	Rtt                       uint32
	Rttvar                    uint32
	Snd_ssthresh              uint32
	Snd_cwnd                  uint32
	Advmss                    uint32
	Reordering                uint32
	Rcv_rtt                   uint32
	Rcv_space                 uint32
	Total_retrans             uint32
	Pacing_rate               uint64
	Max_pacing_rate           uint64
	Bytes_acked               uint64 /* RFC4898 tcpEStatsAppHCThruOctetsAcked */
	Bytes_received            uint64 /* RFC4898 tcpEStatsAppHCThruOctetsReceived */
	Segs_out                  uint32 /* RFC4898 tcpEStatsPerfSegsOut */
	Segs_in                   uint32 /* RFC4898 tcpEStatsPerfSegsIn */
	Notsent_bytes             uint32
	Min_rtt                   uint32
	Data_segs_in              uint32 /* RFC4898 tcpEStatsDataSegsIn */
	Data_segs_out             uint32 /* RFC4898 tcpEStatsDataSegsOut */
	Delivery_rate             uint64
	Busy_time                 uint64 /* Time (usec) busy sending data */
	Rwnd_limited              uint64 /* Time (usec) limited by receive window */
	Sndbuf_limited            uint64 /* Time (usec) limited by send buffer */
	Delivered                 uint32
	Delivered_ce              uint32
	Bytes_sent                uint64 /* RFC4898 tcpEStatsPerfHCDataOctetsOut */
	Bytes_retrans             uint64 /* RFC4898 tcpEStatsPerfOctetsRetrans */
	Dsack_dups                uint32 /* RFC4898 tcpEStatsStackDSACKDups */
	Reord_seen                uint32 /* reordering events seen */
	Rcv_ooopack               uint32 /* Out-of-order packets received */
	Snd_wnd                   uint32 /* peer's advertised receive window after * scaling (bytes) */
}

type Tbf

type Tbf struct {
	QdiscAttrs
	Rate     uint64
	Limit    uint32
	Buffer   uint32
	Peakrate uint64
	Minburst uint32
}

Tbf is a classless qdisc that rate limits based on tokens

func (*Tbf) Attrs

func (qdisc *Tbf) Attrs() *QdiscAttrs

func (*Tbf) Type

func (qdisc *Tbf) Type() string

type TcAct

type TcAct int32
const (
	TC_ACT_UNSPEC     TcAct = -1
	TC_ACT_OK         TcAct = 0
	TC_ACT_RECLASSIFY TcAct = 1
	TC_ACT_SHOT       TcAct = 2
	TC_ACT_PIPE       TcAct = 3
	TC_ACT_STOLEN     TcAct = 4
	TC_ACT_QUEUED     TcAct = 5
	TC_ACT_REPEAT     TcAct = 6
	TC_ACT_REDIRECT   TcAct = 7
	TC_ACT_JUMP       TcAct = 0x10000000
)

func (TcAct) String

func (a TcAct) String() string

type TcPolAct

type TcPolAct int32
const (
	TC_POLICE_UNSPEC     TcPolAct = TcPolAct(TC_ACT_UNSPEC)
	TC_POLICE_OK         TcPolAct = TcPolAct(TC_ACT_OK)
	TC_POLICE_RECLASSIFY TcPolAct = TcPolAct(TC_ACT_RECLASSIFY)
	TC_POLICE_SHOT       TcPolAct = TcPolAct(TC_ACT_SHOT)
	TC_POLICE_PIPE       TcPolAct = TcPolAct(TC_ACT_PIPE)
)

func (TcPolAct) String

func (a TcPolAct) String() string

type TunnelEncapFlag

type TunnelEncapFlag uint16

from https://elixir.bootlin.com/linux/v5.15.4/source/include/uapi/linux/if_tunnel.h#L91

type TunnelEncapType

type TunnelEncapType uint16

from https://elixir.bootlin.com/linux/v5.15.4/source/include/uapi/linux/if_tunnel.h#L84

const (
	None TunnelEncapType = iota
	FOU
	GUE
)

type TunnelKeyAct

type TunnelKeyAct int8
const (
	TCA_TUNNEL_KEY_SET   TunnelKeyAct = 1 // set tunnel key
	TCA_TUNNEL_KEY_UNSET TunnelKeyAct = 2 // unset tunnel key
)

type TunnelKeyAction

type TunnelKeyAction struct {
	ActionAttrs
	Action   TunnelKeyAct
	SrcAddr  net.IP
	DstAddr  net.IP
	KeyID    uint32
	DestPort uint16
}

func NewTunnelKeyAction

func NewTunnelKeyAction() *TunnelKeyAction

func (*TunnelKeyAction) Attrs

func (action *TunnelKeyAction) Attrs() *ActionAttrs

func (*TunnelKeyAction) Type

func (action *TunnelKeyAction) Type() string

type Tuntap

type Tuntap struct {
	LinkAttrs
	Mode       TuntapMode
	Flags      TuntapFlag
	NonPersist bool
	Queues     int
	Fds        []*os.File
	Owner      uint32
	Group      uint32
}

Tuntap links created via /dev/tun/tap, but can be destroyed via netlink

func (*Tuntap) Attrs

func (tuntap *Tuntap) Attrs() *LinkAttrs

func (*Tuntap) Type

func (tuntap *Tuntap) Type() string

type TuntapFlag

type TuntapFlag uint16

type TuntapMode

type TuntapMode uint16

type Veth

type Veth struct {
	LinkAttrs
	PeerName         string // veth on create only
	PeerHardwareAddr net.HardwareAddr
	PeerNamespace    interface{}
}

Veth devices must specify PeerName on create

func (*Veth) Attrs

func (veth *Veth) Attrs() *LinkAttrs

func (*Veth) Type

func (veth *Veth) Type() string

type VfInfo

type VfInfo struct {
	ID        int
	Mac       net.HardwareAddr
	Vlan      int
	Qos       int
	TxRate    int // IFLA_VF_TX_RATE  Max TxRate
	Spoofchk  bool
	LinkState uint32
	MaxTxRate uint32 // IFLA_VF_RATE Max TxRate
	MinTxRate uint32 // IFLA_VF_RATE Min TxRate
	RxPackets uint64
	TxPackets uint64
	RxBytes   uint64
	TxBytes   uint64
	Multicast uint64
	Broadcast uint64
	RxDropped uint64
	TxDropped uint64

	RssQuery uint32
	Trust    uint32
}

VfInfo represents configuration of virtual function

type Vlan

type Vlan struct {
	LinkAttrs
	VlanId       int
	VlanProtocol VlanProtocol
}

Vlan links have ParentIndex set in their Attrs()

func (*Vlan) Attrs

func (vlan *Vlan) Attrs() *LinkAttrs

func (*Vlan) Type

func (vlan *Vlan) Type() string

type VlanProtocol

type VlanProtocol int

VlanProtocol type

const (
	VLAN_PROTOCOL_UNKNOWN VlanProtocol = 0
	VLAN_PROTOCOL_8021Q   VlanProtocol = 0x8100
	VLAN_PROTOCOL_8021AD  VlanProtocol = 0x88A8
)

VlanProtocol possible values

func StringToVlanProtocol

func StringToVlanProtocol(s string) VlanProtocol

StringToVlanProtocol returns vlan protocol, or unknown is the s is invalid.

func (VlanProtocol) String

func (p VlanProtocol) String() string

type Vrf

type Vrf struct {
	LinkAttrs
	Table uint32
}

func (*Vrf) Attrs

func (vrf *Vrf) Attrs() *LinkAttrs

func (*Vrf) Type

func (vrf *Vrf) Type() string

type VrfSlave

type VrfSlave struct {
	Table uint32
}

func (*VrfSlave) SlaveType

func (v *VrfSlave) SlaveType() string

type Vti

type Vti struct {
	LinkAttrs
	IKey   uint32
	OKey   uint32
	Link   uint32
	Local  net.IP
	Remote net.IP
}

func (*Vti) Attrs

func (vti *Vti) Attrs() *LinkAttrs

func (*Vti) Type

func (vti *Vti) Type() string

type Vxlan

type Vxlan struct {
	LinkAttrs
	VxlanId        int
	VtepDevIndex   int
	SrcAddr        net.IP
	Group          net.IP
	TTL            int
	TOS            int
	Learning       bool
	Proxy          bool
	RSC            bool
	L2miss         bool
	L3miss         bool
	UDPCSum        bool
	UDP6ZeroCSumTx bool
	UDP6ZeroCSumRx bool
	NoAge          bool
	GBP            bool
	FlowBased      bool
	Age            int
	Limit          int
	Port           int
	PortLow        int
	PortHigh       int
}

func (*Vxlan) Attrs

func (vxlan *Vxlan) Attrs() *LinkAttrs

func (*Vxlan) Type

func (vxlan *Vxlan) Type() string

type Wireguard

type Wireguard struct {
	LinkAttrs
}

Wireguard represent links of type "wireguard", see https://www.wireguard.com/

func (*Wireguard) Attrs

func (wg *Wireguard) Attrs() *LinkAttrs

func (*Wireguard) Type

func (wg *Wireguard) Type() string

type XfrmMark

type XfrmMark struct {
	Value uint32
	Mask  uint32
}

XfrmMark represents the mark associated to the state or policy

func (*XfrmMark) String

func (m *XfrmMark) String() string

type XfrmPolicy

type XfrmPolicy struct {
	Dst      *net.IPNet
	Src      *net.IPNet
	Proto    Proto
	DstPort  int
	SrcPort  int
	Dir      Dir
	Priority int
	Index    int
	Action   PolicyAction
	Ifindex  int
	Ifid     int
	Mark     *XfrmMark
	Tmpls    []XfrmPolicyTmpl
}

XfrmPolicy represents an ipsec policy. It represents the overlay network and has a list of XfrmPolicyTmpls representing the base addresses of the policy.

func XfrmPolicyList

func XfrmPolicyList(family int) ([]XfrmPolicy, error)

func (XfrmPolicy) String

func (p XfrmPolicy) String() string

type XfrmPolicyTmpl

type XfrmPolicyTmpl struct {
	Dst      net.IP
	Src      net.IP
	Proto    Proto
	Mode     Mode
	Spi      int
	Reqid    int
	Optional int
}

XfrmPolicyTmpl encapsulates a rule for the base addresses of an ipsec policy. These rules are matched with XfrmState to determine encryption and authentication algorithms.

func (XfrmPolicyTmpl) String

func (t XfrmPolicyTmpl) String() string

type XfrmState

type XfrmState struct {
	Dst          net.IP
	Src          net.IP
	Proto        Proto
	Mode         Mode
	Spi          int
	Reqid        int
	ReplayWindow int
	Limits       XfrmStateLimits
	Statistics   XfrmStateStats
	Mark         *XfrmMark
	OutputMark   *XfrmMark
	Ifid         int
	Auth         *XfrmStateAlgo
	Crypt        *XfrmStateAlgo
	Aead         *XfrmStateAlgo
	Encap        *XfrmStateEncap
	ESN          bool
}

XfrmState represents the state of an ipsec policy. It optionally contains an XfrmStateAlgo for encryption and one for authentication.

func XfrmStateList

func XfrmStateList(family int) ([]XfrmState, error)

func (XfrmState) Print

func (sa XfrmState) Print(stats bool) string

func (XfrmState) String

func (sa XfrmState) String() string

type XfrmStateAlgo

type XfrmStateAlgo struct {
	Name        string
	Key         []byte
	TruncateLen int // Auth only
	ICVLen      int // AEAD only
}

XfrmStateAlgo represents the algorithm to use for the ipsec encryption.

func (XfrmStateAlgo) String

func (a XfrmStateAlgo) String() string

type XfrmStateEncap

type XfrmStateEncap struct {
	Type            EncapType
	SrcPort         int
	DstPort         int
	OriginalAddress net.IP
}

XfrmStateEncap represents the encapsulation to use for the ipsec encryption.

func (XfrmStateEncap) String

func (e XfrmStateEncap) String() string

type XfrmStateLimits

type XfrmStateLimits struct {
	ByteSoft    uint64
	ByteHard    uint64
	PacketSoft  uint64
	PacketHard  uint64
	TimeSoft    uint64
	TimeHard    uint64
	TimeUseSoft uint64
	TimeUseHard uint64
}

XfrmStateLimits represents the configured limits for the state.

type XfrmStateStats

type XfrmStateStats struct {
	ReplayWindow uint32
	Replay       uint32
	Failed       uint32
	Bytes        uint64
	Packets      uint64
	AddTime      uint64
	UseTime      uint64
}

XfrmStateStats represents the current number of bytes/packets processed by this State, the State's installation and first use time and the replay window counters.

type Xfrmi

type Xfrmi struct {
	LinkAttrs
	Ifid uint32
}

Virtual XFRM Interfaces

Named "xfrmi" to prevent confusion with XFRM objects

func (*Xfrmi) Attrs

func (xfrm *Xfrmi) Attrs() *LinkAttrs

func (*Xfrmi) Type

func (xfrm *Xfrmi) Type() string

Source Files

addr.go class.go conntrack_unspecified.go filter.go fou.go fou_unspecified.go genetlink_unspecified.go handle_unspecified.go inet_diag.go link.go neigh.go netlink.go netlink_unspecified.go netns_unspecified.go order.go protinfo.go qdisc.go route.go route_unspecified.go rule.go socket.go tcp.go xfrm.go xfrm_policy.go xfrm_state.go

Directories

PathSynopsis
nl
Version
v1.2.1-beta.2
Published
Apr 4, 2022
Platform
js/wasm
Imports
12 packages
Last checked
now

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