endpoint

package
v1.9.5 Latest Latest
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 Go to latest Published: Mar 10, 2021 License: Apache-2.0 Imports: 80 Imported by: 129

Documentation

Index

Constants

View Source 
const (
	// StateWaitingForIdentity is used to set if the endpoint is waiting
	// for an identity from the KVStore.
	StateWaitingForIdentity = string(models.EndpointStateWaitingForIdentity)

	// StateReady specifies if the endpoint is ready to be used.
	StateReady = string(models.EndpointStateReady)

	// StateWaitingToRegenerate specifies when the endpoint needs to be regenerated, but regeneration has not started yet.
	StateWaitingToRegenerate = string(models.EndpointStateWaitingToRegenerate)

	// StateRegenerating specifies when the endpoint is being regenerated.
	StateRegenerating = string(models.EndpointStateRegenerating)

	// StateDisconnecting indicates that the endpoint is being disconnected
	StateDisconnecting = string(models.EndpointStateDisconnecting)

	// StateDisconnected is used to set the endpoint is disconnected.
	StateDisconnected = string(models.EndpointStateDisconnected)

	// StateRestoring is used to set the endpoint is being restored.
	StateRestoring = string(models.EndpointStateRestoring)

	// StateInvalid is used when an endpoint failed during creation due to
	// invalid data.
	StateInvalid = string(models.EndpointStateInvalid)

	// IpvlanMapName specifies the tail call map for EP on egress used with ipvlan.
	IpvlanMapName = "cilium_lxc_ipve_"
)
View Source 
const (
	// EndpointGenerationTimeout specifies timeout for proxy completion context
	EndpointGenerationTimeout = 330 * time.Second
)

Variables

View Source 
var (
	EndpointMutableOptionLibrary = option.GetEndpointMutableOptionLibrary()
)
View Source 
var (
	// ErrNotAlive is an error which indicates that the endpoint should not be
	// rlocked because it is currently being removed.
	ErrNotAlive = errors.New("rlock failed: endpoint is in the process of being removed")
)

Functions

func APICanModify added in v0.15.7 

func APICanModify(e *Endpoint) error

APICanModify determines whether API requests from a user are allowed to modify this endpoint.

func FilterEPDir 

func FilterEPDir(dirFiles []os.FileInfo) []string

FilterEPDir returns a list of directories' names that possible belong to an endpoint.

func ParseExternalRegenerationMetadata added in v0.15.7 

func ParseExternalRegenerationMetadata(ctx context.Context, c context.CancelFunc, e *regeneration.ExternalRegenerationMetadata) *regenerationContext

func ReadEPsFromDirNames added in v0.15.7 

func ReadEPsFromDirNames(ctx context.Context, owner regeneration.Owner, basePath string, eptsDirNames []string) map[uint16]*Endpoint

ReadEPsFromDirNames returns a mapping of endpoint ID to endpoint of endpoints from a list of directory names that can possible contain an endpoint.

Types

type AnnotationsResolverCB added in v0.15.7 

type AnnotationsResolverCB func(ns, podName string) (proxyVisibility string, err error)

AnnotationsResolverCB provides an implementation for resolving the pod annotations.

type DeleteConfig added in v0.15.7 

type DeleteConfig struct {
	NoIPRelease       bool
	NoIdentityRelease bool
}

DeleteConfig is the endpoint deletion configuration

type Endpoint 

type Endpoint struct {

	// ID of the endpoint, unique in the scope of the node
	ID uint16

	// OpLabels is the endpoint's label configuration
	//
	// FIXME: Rename this field to Labels
	OpLabels labels.OpLabels

	// IPv6 is the IPv6 address of the endpoint
	IPv6 addressing.CiliumIPv6

	// IPv4 is the IPv4 address of the endpoint
	IPv4 addressing.CiliumIPv4

	// SecurityIdentity is the security identity of this endpoint. This is computed from
	// the endpoint's labels.
	SecurityIdentity *identity.Identity `json:"SecLabel"`

	// Options determine the datapath configuration of the endpoint.
	Options *option.IntOptions

	// DNSRules is the collection of current endpoint-specific DNS proxy
	// rules. These can be restored during Cilium restart.
	DNSRules restore.DNSRules

	// DNSHistory is the collection of still-valid DNS responses intercepted for
	// this endpoint.
	DNSHistory *fqdn.DNSCache

	// DNSZombies is the collection of DNS IPs that have expired in or been
	// evicted from DNSHistory. They are held back from deletion until we can
	// confirm that no existing connection is using them.
	DNSZombies *fqdn.DNSZombieMappings

	// K8sPodName is the Kubernetes pod name of the endpoint
	K8sPodName string

	// K8sNamespace is the Kubernetes namespace of the endpoint
	K8sNamespace string

	// DatapathConfiguration is the endpoint's datapath configuration as
	// passed in via the plugin that created the endpoint, e.g. the CNI
	// plugin which performed the plumbing will enable certain datapath
	// features according to the mode selected.
	DatapathConfiguration models.EndpointDatapathConfiguration
	// contains filtered or unexported fields
}

Endpoint represents a container or similar which can be individually addresses on L3 with its own IP addresses. This structured is managed by the endpoint manager in pkg/endpointmanager.

The representation of the Endpoint which is serialized to disk for restore purposes is the serializableEndpoint type in this package.

func CreateHostEndpoint added in v0.15.7 

func CreateHostEndpoint(owner regeneration.Owner, proxy EndpointProxy, allocator cache.IdentityAllocator) (*Endpoint, error)

CreateHostEndpoint creates the endpoint corresponding to the host.

func NewEndpointFromChangeModel 

func NewEndpointFromChangeModel(ctx context.Context, owner regeneration.Owner, proxy EndpointProxy, allocator cache.IdentityAllocator, base *models.EndpointChangeRequest) (*Endpoint, error)

NewEndpointFromChangeModel creates a new endpoint from a request

func NewEndpointWithState added in v0.15.7 

func NewEndpointWithState(owner regeneration.Owner, proxy EndpointProxy, allocator cache.IdentityAllocator, ID uint16, state string) *Endpoint

NewEndpointWithState creates a new endpoint useful for testing purposes

func (*Endpoint) APICanModifyConfig added in v0.15.7 

func (e *Endpoint) APICanModifyConfig(n models.ConfigurationMap) error

APICanModifyConfig determines whether API requests from users are allowed to modify the configuration of the endpoint.

func (*Endpoint) Allows 

func (e *Endpoint) Allows(id identity.NumericIdentity) bool

Allows is only used for unit testing

func (*Endpoint) ApplyPolicyMapChanges added in v0.15.7 

func (e *Endpoint) ApplyPolicyMapChanges(proxyWaitGroup *completion.WaitGroup) error

ApplyPolicyMapChanges updates the Endpoint's PolicyMap with the changes that have accumulated for the PolicyMap via various outside events (e.g., identities added / deleted). 'proxyWaitGroup' may not be nil.

func (*Endpoint) ApplyUserLabelChanges added in v0.15.7 

func (e *Endpoint) ApplyUserLabelChanges(lbls labels.Labels) (add, del labels.Labels, err error)

ApplyUserLabelChanges changes the label configuration of the endpoint per the provided labels. Returns labels that were added and deleted. Returns an error if the endpoint is being deleted.

func (*Endpoint) BPFIpvlanMapPath added in v1.5.0 

func (e *Endpoint) BPFIpvlanMapPath() string

BPFIpvlanMapPath returns the path to the ipvlan tail call map of an endpoint.

func (*Endpoint) BuilderSetStateLocked added in v0.15.7 

func (e *Endpoint) BuilderSetStateLocked(toState, reason string) bool

BuilderSetStateLocked modifies the endpoint's state endpoint.mutex must be Lock()ed endpoint buildMutex must be held!

func (*Endpoint) ConntrackLocal added in v0.15.7 

func (e *Endpoint) ConntrackLocal() bool

ConntrackLocal determines whether this endpoint is currently using a local table to handle connection tracking (true), or the global table (false).

func (*Endpoint) ConntrackLocalLocked added in v0.15.7 

func (e *Endpoint) ConntrackLocalLocked() bool

ConntrackLocalLocked is the same as ConntrackLocal, but assumes that the endpoint is already locked for reading.

func (*Endpoint) ConntrackName added in v0.15.7 

func (e *Endpoint) ConntrackName() string

ConntrackName returns the name suffix for the endpoint-specific bpf conntrack map, which is a 5-digit endpoint ID, or "global" when the global map should be used.

func (*Endpoint) ConntrackNameLocked added in v0.15.7 

func (e *Endpoint) ConntrackNameLocked() string

ConntrackNameLocked returns the name suffix for the endpoint-specific bpf conntrack map, which is a 5-digit endpoint ID, or "global" when the global map should be used. Must be called with the endpoint locked.

func (*Endpoint) Delete added in v0.15.7 

func (e *Endpoint) Delete(monitor monitorOwner, ipam ipReleaser, manager endpointManager, conf DeleteConfig) []error

Delete cleans up all resources associated with this endpoint, including the following: * all goroutines managed by this Endpoint (EventQueue, Controllers) * removal from the endpointmanager, resulting in new events not taking effect on this endpoint * cleanup of datapath state (BPF maps, proxy configuration, directories) * releasing IP addresses allocated for the endpoint * releasing of the reference to its allocated security identity

func (*Endpoint) DeleteBPFProgramLocked added in v1.5.0 

func (e *Endpoint) DeleteBPFProgramLocked() error

DeleteBPFProgramLocked delete the BPF program associated with the endpoint's veth interface.

func (*Endpoint) DirectoryPath 

func (e *Endpoint) DirectoryPath() string

DirectoryPath returns the directory name for this endpoint bpf program.

func (*Endpoint) Expose added in v1.7.0 

func (e *Endpoint) Expose(mgr endpointManager) error

Expose exposes the endpoint to the endpointmanager. After this function is called, the endpoint may be accessed by any lookup in the endpointmanager.

func (*Endpoint) FailedDirectoryPath added in v0.15.7 

func (e *Endpoint) FailedDirectoryPath() string

FailedDirectoryPath returns the directory name for this endpoint bpf program failed builds.

func (*Endpoint) FinishIPVLANInit added in v1.7.0 

func (e *Endpoint) FinishIPVLANInit(netNsPath string) error

FinishIPVLANInit finishes configuring ipvlan slave device of the given endpoint.

Unfortunately, Docker libnetwork itself moves a netdev to netns of a container after the Cilium libnetwork plugin driver has responded to a `JoinEndpoint` request. During the move, the netdev qdisc's get flushed by the kernel. Therefore, we need to configure the ipvlan slave device in two stages.

Because the function can be called many times for the same container in parallel, we need to make the function idempotent. This is achieved by checking whether the datapath map has been pinned, which indicates previous successful invocation of the function for the same container, before executing the configuration stages.

FIXME: Because of the libnetwork limitation mentioned above, we cannot enforce policies for an ipvlan slave before a process of a container has started. So, this enables a window between the two stages during which ALL container traffic is allowed.

func (*Endpoint) FormatGlobalEndpointID added in v0.15.7 

func (e *Endpoint) FormatGlobalEndpointID() string

FormatGlobalEndpointID returns the global ID of endpoint in the format / <global ID Prefix>:<cluster name>:<node name>:<endpoint ID> as a string.

func (*Endpoint) GetCIDRPrefixLengths added in v0.15.7 

func (e *Endpoint) GetCIDRPrefixLengths() (s6, s4 []int)

GetCIDRPrefixLengths returns the sorted list of unique prefix lengths used for CIDR policy or IPcache lookup from this endpoint.

func (*Endpoint) GetCiliumEndpointStatus added in v0.15.7 

func (e *Endpoint) GetCiliumEndpointStatus(conf EndpointStatusConfiguration) *cilium_v2.EndpointStatus

GetCiliumEndpointStatus creates a cilium_v2.EndpointStatus of an endpoint. See cilium_v2.EndpointStatus for a detailed explanation of each field.

func (*Endpoint) GetConfigurationStatus added in v0.15.7 

func (e *Endpoint) GetConfigurationStatus() *models.EndpointConfigurationStatus

GetConfigurationStatus returns the Cilium API representation of the configuration of this endpoint.

func (*Endpoint) GetContainerID added in v0.15.7 

func (e *Endpoint) GetContainerID() string

GetContainerID returns the endpoint's container ID

func (*Endpoint) GetContainerName added in v0.15.7 

func (e *Endpoint) GetContainerName() string

GetContainerName returns the name of the container for the endpoint.

func (*Endpoint) GetCreatedAt added in v0.15.7 

func (e *Endpoint) GetCreatedAt() time.Time

GetCreatedAt returns the endpoint creation time.

func (*Endpoint) GetDockerEndpointID added in v0.15.7 

func (e *Endpoint) GetDockerEndpointID() string

func (*Endpoint) GetDockerNetworkID added in v1.5.0 

func (e *Endpoint) GetDockerNetworkID() string

GetDockerNetworkID returns the endpoint's Docker Endpoint ID

func (*Endpoint) GetHealthModel added in v0.15.7 

func (e *Endpoint) GetHealthModel() *models.EndpointHealth

GetHealthModel returns the endpoint's health object.

func (*Endpoint) GetID added in v0.10.0 

func (e *Endpoint) GetID() uint64

GetID returns the endpoint's ID as a 64-bit unsigned integer.

func (*Endpoint) GetID16 added in v0.15.7 

func (e *Endpoint) GetID16() uint16

GetID16 returns the endpoint's ID as a 16-bit unsigned integer.

func (*Endpoint) GetIPv4Address added in v0.10.0 

func (e *Endpoint) GetIPv4Address() string

GetIPv4Address returns the IPv4 address of the endpoint as a string

func (*Endpoint) GetIPv6Address added in v0.10.0 

func (e *Endpoint) GetIPv6Address() string

GetIPv6Address returns the IPv6 address of the endpoint as a string

func (*Endpoint) GetIdentity 

func (e *Endpoint) GetIdentity() identity.NumericIdentity

GetIdentity returns the numeric security identity of the endpoint

func (*Endpoint) GetIdentityLocked added in v0.15.7 

func (e *Endpoint) GetIdentityLocked() identity.NumericIdentity

GetIdentityLocked is identical to GetIdentity() but assumes that a.mutex is already held. This function is obsolete and should no longer be used.

func (*Endpoint) GetIfIndex added in v0.15.7 

func (e *Endpoint) GetIfIndex() int

GetIfIndex returns the ifIndex for this endpoint.

func (*Endpoint) GetK8sNamespace added in v0.15.7 

func (e *Endpoint) GetK8sNamespace() string

GetK8sNamespace returns the name of the pod if the endpoint represents a Kubernetes pod

func (*Endpoint) GetK8sNamespaceAndPodName added in v0.15.7 

func (e *Endpoint) GetK8sNamespaceAndPodName() string

GetK8sNamespaceAndPodName returns the corresponding namespace and pod name for this endpoint.

func (*Endpoint) GetK8sPodName added in v0.15.7 

func (e *Endpoint) GetK8sPodName() string

GetK8sPodName returns the name of the pod if the endpoint represents a Kubernetes pod

func (*Endpoint) GetK8sPorts added in v0.15.7 

func (e *Endpoint) GetK8sPorts() (k8sPorts policy.NamedPortMap, err error)

GetK8sPorts returns the k8sPorts, which must not be modified by the caller

func (*Endpoint) GetLabels added in v0.10.0 

func (e *Endpoint) GetLabels() []string

GetLabels returns the labels as slice

func (*Endpoint) GetLabelsModel added in v0.15.7 

func (e *Endpoint) GetLabelsModel() (*models.LabelConfiguration, error)

GetLabelsModel returns the labels of the endpoint in their representation for the Cilium API. Returns an error if the Endpoint is being deleted.

func (*Endpoint) GetLabelsSHA added in v1.5.0 

func (e *Endpoint) GetLabelsSHA() string

GetLabelsSHA returns the SHA of labels

func (*Endpoint) GetModel 

func (e *Endpoint) GetModel() *models.Endpoint

GetModel returns the API model of endpoint e.

func (*Endpoint) GetModelRLocked added in v0.15.7 

func (e *Endpoint) GetModelRLocked() *models.Endpoint

GetModelRLocked returns the API model of endpoint e. e.mutex must be RLocked.

func (*Endpoint) GetNamedPort added in v0.15.7 

func (e *Endpoint) GetNamedPort(ingress bool, name string, proto uint8) uint16

GetNamedPort returns the port for the given name. Must be called with e.mutex NOT held

func (*Endpoint) GetNamedPortLocked added in v1.8.3 

func (e *Endpoint) GetNamedPortLocked(ingress bool, name string, proto uint8) uint16

GetNamedPortLocked returns port for the given name. May return an invalid (0) port Must be called with e.mutex held.

func (*Endpoint) GetNamedPortsModel added in v0.15.7 

func (e *Endpoint) GetNamedPortsModel() models.NamedPorts

GetNamedPortsModel returns the endpoint's NamedPorts object.

func (*Endpoint) GetNodeMAC added in v0.15.7 

func (e *Endpoint) GetNodeMAC() mac.MAC

GetNodeMAC returns the MAC address of the node from this endpoint's perspective.

func (*Endpoint) GetOpLabels added in v0.15.7 

func (e *Endpoint) GetOpLabels() []string

GetOpLabels returns the labels as slice

func (*Endpoint) GetOptions added in v0.15.7 

func (e *Endpoint) GetOptions() *option.IntOptions

GetOptions returns the datapath configuration options of the endpoint.

func (*Endpoint) GetPod added in v0.15.7 

func (e *Endpoint) GetPod() *slim_corev1.Pod

GetPod retrieves the pod related to this endpoint

func (*Endpoint) GetPolicyModel added in v0.15.7 

func (e *Endpoint) GetPolicyModel() *models.EndpointPolicyStatus

GetPolicyModel returns the endpoint's policy as an API model.

Must be called with e.mutex RLock()ed.

func (*Endpoint) GetPolicyVerdictLogFilter added in v0.15.7 

func (e *Endpoint) GetPolicyVerdictLogFilter() uint32

GetPolicyVerdictLogFilter returns the PolicyVerdictLogFilter that would control the creation of policy verdict logs. Value of VerdictLogFilter needs to be consistent with how it is used in policy_verdict_filter_allow() in bpf/lib/policy_log.h

func (*Endpoint) GetProxyInfoByFields added in v1.7.0 

func (e *Endpoint) GetProxyInfoByFields() (uint64, string, string, []string, string, uint64, error)

GetProxyInfoByFields returns the ID, IPv4 address, IPv6 address, labels, SHA of labels, and identity of the endpoint. Returns an error if the endpoint is in the process of being deleted / has been deleted.

func (*Endpoint) GetRealizedPolicyRuleLabelsForKey added in v0.15.7 

func (e *Endpoint) GetRealizedPolicyRuleLabelsForKey(key policy.Key) (
	derivedFrom labels.LabelArrayList,
	revision uint64,
	ok bool,
)

GetRealizedPolicyRuleLabelsForKey returns the list of policy rule labels which match a given flow key (in host byte-order). The returned LabelArrayList is shallow-copied and therefore must not be mutated. This function explicitly exported to be accessed by code outside of the Cilium source code tree and for testing.

func (*Endpoint) GetSecurityIdentity added in v0.15.7 

func (e *Endpoint) GetSecurityIdentity() (*identity.Identity, error)

GetSecurityIdentity returns the security identity of the endpoint. It assumes the endpoint's mutex is held.

func (*Endpoint) GetShortContainerID added in v0.15.7 

func (e *Endpoint) GetShortContainerID() string

GetShortContainerID returns the endpoint's shortened container ID

func (*Endpoint) GetState added in v0.15.7 

func (e *Endpoint) GetState() string

GetState returns the endpoint's state endpoint.mutex may only be rlockAlive()ed

func (*Endpoint) GetStatusModel added in v0.15.7 

func (e *Endpoint) GetStatusModel() []*models.EndpointStatusChange

GetStatusModel returns the model of the status of this endpoint.

func (*Endpoint) HasIpvlanDataPath added in v1.5.0 

func (e *Endpoint) HasIpvlanDataPath() bool

HasIpvlanDataPath returns whether the daemon is running in ipvlan mode.

func (*Endpoint) HasLabels added in v0.10.0 

func (e *Endpoint) HasLabels(l labels.Labels) bool

HasLabels returns whether endpoint e contains all labels l. Will return 'false' if any label in l is not in the endpoint's labels.

func (*Endpoint) HasSidecarProxy added in v0.15.7 

func (e *Endpoint) HasSidecarProxy() bool

func (*Endpoint) HaveK8sMetadata added in v0.15.7 

func (e *Endpoint) HaveK8sMetadata() (metadataSet bool)

HaveK8sMetadata returns true once hasK8sMetadata was set

func (*Endpoint) HumanStringLocked added in v1.5.0 

func (e *Endpoint) HumanStringLocked() string

HumanStringLocked returns the endpoint's most human readable identifier as string

func (*Endpoint) IPs added in v1.5.0 

func (e *Endpoint) IPs() []net.IP

IPs returns the slice of valid IPs for this endpoint.

func (*Endpoint) IPv4Address added in v0.15.7 

func (e *Endpoint) IPv4Address() addressing.CiliumIPv4

IPv4Address returns the IPv4 address of the endpoint

func (*Endpoint) IPv6Address added in v0.15.7 

func (e *Endpoint) IPv6Address() addressing.CiliumIPv6

IPv6Address returns the IPv6 address of the endpoint

func (*Endpoint) InitEventQueue added in v0.15.7 

func (e *Endpoint) InitEventQueue()

InitEventQueue initializes the endpoint's event queue. Note that this function does not begin processing events off the queue, as that's left up to the caller to call Expose in order to allow other subsystems to access the endpoint. This function assumes that the endpoint ID has already been allocated!

Having this be a separate function allows us to prepare the event queue while the endpoint is being validated (during restoration) so that when its metadata is resolved, events can be enqueued (such as visibility policy and bandwidth policy).

func (*Endpoint) InitMap added in v0.15.7 

func (e *Endpoint) InitMap() error

InitMap creates the policy map in the kernel.

func (*Endpoint) IsDisconnecting added in v0.15.7 

func (e *Endpoint) IsDisconnecting() bool

IsDisconnecting returns true if the endpoint is being disconnected or already disconnected

This function must be called after re-acquiring the endpoint mutex to verify that the endpoint has not been removed in the meantime.

endpoint.mutex must be held in read mode at least

func (*Endpoint) IsHost added in v0.15.7 

func (e *Endpoint) IsHost() bool

func (*Endpoint) IsInit added in v0.15.7 

func (e *Endpoint) IsInit() bool

IsInit returns true if the endpoint still hasn't received identity labels, i.e. has the special identity with label reserved:init.

func (*Endpoint) K8sNamespaceAndPodNameIsSet added in v0.15.7 

func (e *Endpoint) K8sNamespaceAndPodNameIsSet() bool

K8sNamespaceAndPodNameIsSet returns true if the pod name is set

func (*Endpoint) LXCMac added in v0.15.7 

func (e *Endpoint) LXCMac() mac.MAC

LXCMac returns the LXCMac for this endpoint.

func (*Endpoint) LogStatus 

func (e *Endpoint) LogStatus(typ StatusType, code StatusCode, msg string)

func (*Endpoint) LogStatusOK 

func (e *Endpoint) LogStatusOK(typ StatusType, msg string)

func (*Endpoint) LogStatusOKLocked added in v0.15.7 

func (e *Endpoint) LogStatusOKLocked(typ StatusType, msg string)

LogStatusOKLocked will log an OK message of the given status type with the given msg string. Must be called with endpoint.mutex RLock()ed.

func (*Endpoint) Logger added in v0.15.7 

func (e *Endpoint) Logger(subsystem string) *logrus.Entry

Logger returns a logrus object with EndpointID, containerID and the Endpoint revision fields. The caller must specify their subsystem.

func (*Endpoint) LookupRedirectPortLocked added in v0.15.7 

func (e *Endpoint) LookupRedirectPortLocked(ingress bool, protocol string, port uint16) uint16

lookupRedirectPort returns the redirect L4 proxy port for the given L4 policy map key, in host byte order. Returns 0 if not found or the filter doesn't require a redirect. Must be called with Endpoint.mutex held.

func (*Endpoint) MarkCTGCTime added in v0.15.7 

func (e *Endpoint) MarkCTGCTime(now time.Time)

MarkCTGCTime is the START time of a GC run. It is used by the DNS garbage collector to determine whether a DNS zombie can be deleted. This is done by comparing the timestamp of the start CT GC run with the ailve timestamps of specific DNS zombies IPs marked with MarkDNSCTEntry. NOTE: While the timestamp is ths start of the run, it should be set AFTER the run completes. This avoids a race between the DNS garbage collector and the CT GC. This would occur when a DNS zombie that has not been visited by the CT GC run is seen by a concurrent DNS garbage collector run, and then deleted. The DNS garbage collector is in daemon/fqdn.go and the CT GC is in pkg/maps/ctmap/gc/gc.go

func (*Endpoint) MarkDNSCTEntry added in v0.15.7 

func (e *Endpoint) MarkDNSCTEntry(dstIP net.IP, now time.Time)

MarkDNSCTEntry records that dstIP is in use by a connection that is allowed by toFQDNs policy. The reverse lookup is attempted in both DNSHistory and DNSCTHistory, allowing short DNS TTLs but long-lived connections to persist there.DNSCTHistory is used to suppress delete handling of expired DNS lookups (in DNSHistory) and it relies on pkg/maps/ctmap/gc to call this function. Internally, the lookupTime is used to checkpoint this update so that dns-garbage-collector-job can correctly clear older connection data.

func (*Endpoint) MarshalJSON added in v0.15.7 

func (ep *Endpoint) MarshalJSON() ([]byte, error)

MarshalJSON marshals the Endpoint as its serializableEndpoint representation.

func (*Endpoint) ModifyIdentityLabels added in v0.15.7 

func (e *Endpoint) ModifyIdentityLabels(addLabels, delLabels labels.Labels) error

ModifyIdentityLabels changes the custom and orchestration identity labels of an endpoint. Labels can be added or deleted. If a label change is performed, the endpoint will receive a new identity and will be regenerated. Both of these operations will happen in the background.

func (*Endpoint) NextDirectoryPath added in v0.15.7 

func (e *Endpoint) NextDirectoryPath() string

NextDirectoryPath returns the directory name for this endpoint bpf program next bpf builds.

func (*Endpoint) OnDNSPolicyUpdateLocked added in v0.15.7 

func (e *Endpoint) OnDNSPolicyUpdateLocked(rules restore.DNSRules)

OnDNSPolicyUpdateLocked is called when the Endpoint's DNS policy has been updated

func (*Endpoint) OnProxyPolicyUpdate added in v0.15.7 

func (e *Endpoint) OnProxyPolicyUpdate(revision uint64)

OnProxyPolicyUpdate is a callback used to update the Endpoint's proxyPolicyRevision when the specified revision has been applied in the proxy.

func (*Endpoint) PinDatapathMap added in v1.5.0 

func (e *Endpoint) PinDatapathMap() error

PinDatapathMap retrieves a file descriptor from the map ID from the API call and pins the corresponding map into the BPF file system.

func (*Endpoint) PolicyRevisionBumpEvent added in v0.15.7 

func (e *Endpoint) PolicyRevisionBumpEvent(rev uint64)

PolicyRevisionBumpEvent queues an event for the given endpoint to set its realized policy revision to rev. This may block depending on if events have been queued up for the given endpoint. It blocks until the event has succeeded, or if the event has been cancelled.

func (*Endpoint) ProcessChangeRequest added in v0.15.7 

func (e *Endpoint) ProcessChangeRequest(newEp *Endpoint, validPatchTransitionState bool) (string, error)

ProcessChangeRequest handles the update logic for performing a PATCH operation on a given Endpoint. Returns the reason which will be used for informational purposes should a caller choose to try to regenerate this endpoint, as well as an error if the Endpoint is being deleted, since there is no point in changing an Endpoint if it is going to be deleted.

func (*Endpoint) Regenerate 

func (e *Endpoint) Regenerate(regenMetadata *regeneration.ExternalRegenerationMetadata) <-chan bool

Regenerate forces the regeneration of endpoint programs & policy Should only be called with e.state at StateWaitingToRegenerate, StateWaitingForIdentity, or StateRestoring

func (*Endpoint) RegenerateAfterRestore added in v0.15.7 

func (e *Endpoint) RegenerateAfterRestore() error

RegenerateAfterRestore performs the following operations on the specified Endpoint: * allocates an identity for the Endpoint * regenerates the endpoint Returns an error if any operation fails while trying to perform the above operations.

func (*Endpoint) RegenerateIfAlive added in v0.15.7 

func (e *Endpoint) RegenerateIfAlive(regenMetadata *regeneration.ExternalRegenerationMetadata) <-chan bool

RegenerateIfAlive queue a regeneration of this endpoint into the build queue of the endpoint and returns a channel that is closed when the regeneration of the endpoint is complete. The channel returns:

  • false if the regeneration failed
  • true if the regeneration succeed
  • nothing and the channel is closed if the regeneration did not happen

func (*Endpoint) RequireARPPassthrough added in v0.15.7 

func (e *Endpoint) RequireARPPassthrough() bool

RequireARPPassthrough returns true if the datapath must implement ARP passthrough for this endpoint

func (*Endpoint) RequireEgressProg added in v0.15.7 

func (e *Endpoint) RequireEgressProg() bool

RequireEgressProg returns true if the endpoint requires bpf_lxc with section "to-container" to be attached at egress on the host facing veth pair

func (*Endpoint) RequireEndpointRoute added in v0.15.7 

func (e *Endpoint) RequireEndpointRoute() bool

RequireEndpointRoute returns if the endpoint wants a per endpoint route

func (*Endpoint) RequireRouting added in v0.15.7 

func (e *Endpoint) RequireRouting() (required bool)

RequireRouting returns true if the endpoint requires BPF routing to be enabled, when disabled, routing is delegated to Linux routing

func (*Endpoint) RunMetadataResolver added in v0.15.7 

func (e *Endpoint) RunMetadataResolver(resolveMetadata MetadataResolverCB)

RunMetadataResolver starts a controller associated with the received endpoint which will periodically attempt to resolve the metadata for the endpoint and update the endpoint with the related. It stops resolving after either the first successful metadata resolution or when the endpoint is removed.

This assumes that after the initial successful resolution, other mechanisms will handle updates (such as pkg/k8s/watchers informers).

func (*Endpoint) SetAllocator added in v0.15.7 

func (e *Endpoint) SetAllocator(allocator cache.IdentityAllocator)

SetAllocator sets the identity allocator for this endpoint.

func (*Endpoint) SetContainerID added in v1.5.0 

func (e *Endpoint) SetContainerID(id string)

SetContainerID modifies the endpoint's container ID

func (*Endpoint) SetContainerName added in v1.5.0 

func (e *Endpoint) SetContainerName(name string)

SetContainerName modifies the endpoint's container name

func (*Endpoint) SetDefaultConfiguration added in v0.15.7 

func (e *Endpoint) SetDefaultConfiguration(restore bool)

SetDefaultConfiguration sets the default configuration options for its boolean configuration options and for policy enforcement based off of the global policy enforcement configuration options. If restore is true, then the configuration option to keep endpoint configuration during endpoint restore is checked, and if so, this is a no-op.

func (*Endpoint) SetDefaultOpts 

func (e *Endpoint) SetDefaultOpts(opts *option.IntOptions)

SetDefaultOpts initializes the endpoint Options and configures the specified options.

func (*Endpoint) SetDockerEndpointID added in v1.5.0 

func (e *Endpoint) SetDockerEndpointID(id string)

SetDockerEndpointID modifies the endpoint's Docker Endpoint ID

func (*Endpoint) SetDockerNetworkID added in v1.5.0 

func (e *Endpoint) SetDockerNetworkID(id string)

SetDockerNetworkID modifies the endpoint's Docker Endpoint ID

func (*Endpoint) SetIdentity 

func (e *Endpoint) SetIdentity(identity *identityPkg.Identity, newEndpoint bool)

SetIdentity resets endpoint's policy identity to 'id'. Caller triggers policy regeneration if needed. Called with e.mutex Lock()ed

func (*Endpoint) SetK8sMetadata added in v0.15.7 

func (e *Endpoint) SetK8sMetadata(containerPorts []slim_corev1.ContainerPort) error

SetK8sMetadata sets the k8s container ports specified by kubernetes. Note that once put in place, the new k8sPorts is never changed, so that the map can be used concurrently without keeping locks. Reading the 'e.k8sPorts' member (the "map pointer") *itself* requires the endpoint lock! Can't really error out as that might break backwards compatibility.

func (*Endpoint) SetK8sNamespace added in v1.5.0 

func (e *Endpoint) SetK8sNamespace(name string)

SetK8sNamespace modifies the endpoint's pod name

func (*Endpoint) SetK8sPodName added in v1.5.0 

func (e *Endpoint) SetK8sPodName(name string)

SetK8sPodName modifies the endpoint's pod name

func (*Endpoint) SetPod added in v0.15.7 

func (e *Endpoint) SetPod(pod *slim_corev1.Pod)

SetPod sets the pod related to this endpoint.

func (*Endpoint) SetPolicyRevision added in v0.15.7 

func (e *Endpoint) SetPolicyRevision(rev uint64)

SetPolicyRevision sets the endpoint's policy revision with the given revision.

func (*Endpoint) SetProxy added in v0.15.7 

func (e *Endpoint) SetProxy(p EndpointProxy)

SetProxy sets the proxy for this endpoint.

func (*Endpoint) SetRegenerateStateIfAlive added in v0.15.7 

func (e *Endpoint) SetRegenerateStateIfAlive(regenMetadata *regeneration.ExternalRegenerationMetadata) (bool, error)

SetRegenerateStateIfAlive tries to change the state of the endpoint for pending regeneration. Returns 'true' if 'e.Regenerate()' should be called after releasing the endpoint lock. Return 'false' if returned error is non-nil.

func (*Endpoint) SetState added in v0.15.7 

func (e *Endpoint) SetState(toState, reason string) bool

SetState modifies the endpoint's state. Returns true only if endpoints state was changed as requested

func (*Endpoint) SkipStateClean added in v0.15.7 

func (e *Endpoint) SkipStateClean()

SkipStateClean can be called on a endpoint before its first build to skip the cleaning of state such as the conntrack table. This is useful when an endpoint is being restored from state and the datapath state should not be claned.

The endpoint lock must NOT be held.

func (*Endpoint) StateDirectoryPath added in v0.15.7 

func (e *Endpoint) StateDirectoryPath() string

StateDirectoryPath returns the directory name for this endpoint bpf program.

func (*Endpoint) Stop added in v0.15.7 

func (e *Endpoint) Stop()

Stop cleans up all goroutines managed by this endpoint (EventQueue, Controllers). This function should be used directly in cleanup functions which aim to stop goroutines managed by this endpoint, but without removing BPF maps and datapath state.

func (*Endpoint) String 

func (e *Endpoint) String() string

String returns endpoint on a JSON format.

func (*Endpoint) StringID 

func (e *Endpoint) StringID() string

StringID returns the endpoint's ID in a string.

func (*Endpoint) SyncEndpointHeaderFile added in v0.15.7 

func (e *Endpoint) SyncEndpointHeaderFile() error

SyncEndpointHeaderFile it bumps the current DNS History information for the endpoint in the ep_config.h file.

func (*Endpoint) Unexpose added in v1.7.0 

func (e *Endpoint) Unexpose(mgr endpointManager) <-chan struct{}

Unexpose removes the endpoint from being globally acccessible via other packages.

func (*Endpoint) UnmarshalJSON added in v0.15.7 

func (ep *Endpoint) UnmarshalJSON(raw []byte) error

UnmarshalJSON expects that the contents of `raw` are a serializableEndpoint, which is then converted into an Endpoint.

func (*Endpoint) Update 

func (e *Endpoint) Update(cfg *models.EndpointConfigurationSpec) error

Update modifies the endpoint options and *always* tries to regenerate the endpoint's program. Returns an error if the provided options are not valid, if there was an issue triggering policy updates for the given endpoint, or if endpoint regeneration was unable to be triggered. Note that the LabelConfiguration in the EndpointConfigurationSpec is *not* consumed here.

func (*Endpoint) UpdateBandwidthPolicy added in v0.15.7 

func (e *Endpoint) UpdateBandwidthPolicy(annoCB AnnotationsResolverCB)

UpdateBandwidthPolicy updates the egress bandwidth of this endpoint to progagate the throttle rate to the BPF data path.

func (*Endpoint) UpdateController added in v0.15.7 

func (e *Endpoint) UpdateController(name string, params controller.ControllerParams)

UpdateController updates the controller with the specified name with the provided list of parameters in endpoint's list of controllers.

func (*Endpoint) UpdateLabels added in v0.15.7 

func (e *Endpoint) UpdateLabels(ctx context.Context, identityLabels, infoLabels labels.Labels, blocking bool) (regenTriggered bool)

UpdateLabels is called to update the labels of an endpoint. Calls to this function do not necessarily mean that the labels actually changed. The container runtime layer will periodically synchronize labels.

If a net label changed was performed, the endpoint will receive a new security identity and will be regenerated. Both of these operations will run first synchronously if 'blocking' is true, and then in the background.

Returns 'true' if endpoint regeneration was triggered.

func (*Endpoint) UpdateLogger added in v0.15.7 

func (e *Endpoint) UpdateLogger(fields map[string]interface{})

UpdateLogger creates a logger instance specific to this endpoint. It will create a custom Debug logger for this endpoint when the option on it is set. If fields is not nil only the those specific fields will be updated in the endpoint's logger, otherwise a full update of those fields is executed.

Note: You must hold Endpoint.mutex.Lock() to synchronize logger pointer updates if the endpoint is already exposed. Callers that create new endopoints do not need locks to call this.

func (*Endpoint) UpdateProxyStatistics added in v0.15.7 

func (e *Endpoint) UpdateProxyStatistics(l4Protocol string, port uint16, ingress, request bool, verdict accesslog.FlowVerdict)

UpdateProxyStatistics updates the Endpoint's proxy statistics to account for a new observed flow with the given characteristics.

func (*Endpoint) UpdateReferences added in v1.7.0 

func (e *Endpoint) UpdateReferences(mgr endpointManager) error

UpdateReferences updates the endpointmanager mappings of identifiers to endpoints for the given endpoint. Returns an error if the endpoint is being deleted.

func (*Endpoint) UpdateVisibilityPolicy added in v0.15.7 

func (e *Endpoint) UpdateVisibilityPolicy(annoCB AnnotationsResolverCB)

UpdateVisibilityPolicy updates the visibility policy of this endpoint to reflect the state stored in the provided proxy visibility annotation. If anno is empty, then the VisibilityPolicy for the Endpoint will be empty, and will have no effect. If the proxy visibility annotation cannot be parsed, an empty visibility policy is assigned to the Endpoint.

func (*Endpoint) ValidateConnectorPlumbing added in v0.15.7 

func (e *Endpoint) ValidateConnectorPlumbing(linkChecker linkCheckerFunc) error

ValidateConnectorPlumbing checks whether the endpoint is correctly plumbed depending on if it is connected via veth or IPVLAN.

func (*Endpoint) WaitForFirstRegeneration added in v0.15.7 

func (e *Endpoint) WaitForFirstRegeneration(ctx context.Context) error

WaitForFirstRegeneration waits for specific conditions before returning: * if the endpoint has a sidecar proxy, it waits for the endpoint's BPF program to be generated for the first time. * otherwise, waits for the endpoint to complete its first full regeneration.

func (*Endpoint) WaitForIdentity added in v0.15.7 

func (e *Endpoint) WaitForIdentity(timeoutDuration time.Duration) *identity.Identity

WaitForIdentity waits for up to timeoutDuration amount of time for the endpoint to have an identity. If the timeout is reached, returns nil.

func (*Endpoint) WaitForPolicyRevision added in v0.15.7 

func (e *Endpoint) WaitForPolicyRevision(ctx context.Context, rev uint64, done func(ts time.Time)) <-chan struct{}

WaitForPolicyRevision returns a channel that is closed when one or more of the following conditions have met:

  • the endpoint is disconnected state
  • the endpoint's policy revision reaches the wanted revision

When the done callback is non-nil it will be called just before the channel is closed.

type EndpointPolicyBandwidthEvent added in v0.15.7 

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

EndpointPolicyBandwidthEvent contains all fields necessary to update the Pod's bandwidth policy.

func (*EndpointPolicyBandwidthEvent) Handle added in v0.15.7 

func (ev *EndpointPolicyBandwidthEvent) Handle(res chan interface{})

Handle handles the policy bandwidth update.

type EndpointPolicyVisibilityEvent added in v0.15.7 

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

EndpointPolicyVisibilityEvent contains all fields necessary to update the visibility policy.

func (*EndpointPolicyVisibilityEvent) Handle added in v0.15.7 

func (ev *EndpointPolicyVisibilityEvent) Handle(res chan interface{})

Handle handles the policy visibility update.

type EndpointProxy added in v0.15.7 

type EndpointProxy interface {
	CreateOrUpdateRedirect(l4 policy.ProxyPolicy, id string, localEndpoint logger.EndpointUpdater, wg *completion.WaitGroup) (proxyPort uint16, err error, finalizeFunc revert.FinalizeFunc, revertFunc revert.RevertFunc)
	RemoveRedirect(id string, wg *completion.WaitGroup) (error, revert.FinalizeFunc, revert.RevertFunc)
	UpdateNetworkPolicy(ep logger.EndpointUpdater, policy *policy.L4Policy, ingressPolicyEnforced, egressPolicyEnforced bool, wg *completion.WaitGroup) (error, func() error)
	UseCurrentNetworkPolicy(ep logger.EndpointUpdater, policy *policy.L4Policy, wg *completion.WaitGroup)
	RemoveNetworkPolicy(ep logger.EndpointInfoSource)
}

EndpointProxy defines any L7 proxy with which an Endpoint must interact.

type EndpointRegenerationEvent added in v0.15.7 

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

EndpointRegenerationEvent contains all fields necessary to regenerate an endpoint.

func (*EndpointRegenerationEvent) Handle added in v0.15.7 

func (ev *EndpointRegenerationEvent) Handle(res chan interface{})

Handle handles the regeneration event for the endpoint.

type EndpointRegenerationResult added in v0.15.7 

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

EndpointRegenerationResult contains the results of an endpoint regeneration.

type EndpointRevisionBumpEvent added in v0.15.7 

type EndpointRevisionBumpEvent struct {
	Rev uint64
	// contains filtered or unexported fields
}

EndpointRevisionBumpEvent contains all fields necessary to bump the policy revision of a given endpoint.

func (*EndpointRevisionBumpEvent) Handle added in v0.15.7 

func (ev *EndpointRevisionBumpEvent) Handle(res chan interface{})

Handle handles the revision bump event for the Endpoint.

type EndpointStatus 

type EndpointStatus struct {
	// CurrentStatuses is the last status of a given priority.
	CurrentStatuses componentStatus `json:"current-status,omitempty"`
	// Contains the last maxLogs messages for this endpoint.
	Log statusLog `json:"log,omitempty"`
	// Index is the index in the statusLog, is used to keep track the next
	// available position to write a new log message.
	Index int `json:"index"`
	// contains filtered or unexported fields
}

EndpointStatus represents the endpoint status.

func NewEndpointStatus 

func NewEndpointStatus() *EndpointStatus

func (*EndpointStatus) CurrentStatus 

func (e *EndpointStatus) CurrentStatus() StatusCode

func (*EndpointStatus) GetModel 

func (e *EndpointStatus) GetModel() []*models.EndpointStatusChange

func (*EndpointStatus) String 

func (e *EndpointStatus) String() string

type EndpointStatusConfiguration added in v0.15.7 

type EndpointStatusConfiguration interface {
	// EndpointStatusIsEnabled must return true if a particular
	// option.EndpointStatus* feature is enabled
	EndpointStatusIsEnabled(option string) bool
}

EndpointStatusConfiguration is the configuration interface that a caller of to GetCiliumEndpointStatus() must implement

type FakeEndpointProxy added in v0.15.7 

type FakeEndpointProxy struct{}

FakeEndpointProxy is a stub proxy used for testing.

func (*FakeEndpointProxy) CreateOrUpdateRedirect added in v0.15.7 

func (f *FakeEndpointProxy) CreateOrUpdateRedirect(l4 policy.ProxyPolicy, id string, localEndpoint logger.EndpointUpdater, wg *completion.WaitGroup) (proxyPort uint16, err error, finalizeFunc revert.FinalizeFunc, revertFunc revert.RevertFunc)

CreateOrUpdateRedirect does nothing.

func (*FakeEndpointProxy) RemoveNetworkPolicy added in v0.15.7 

func (f *FakeEndpointProxy) RemoveNetworkPolicy(ep logger.EndpointInfoSource)

RemoveNetworkPolicy does nothing.

func (*FakeEndpointProxy) RemoveRedirect added in v0.15.7 

func (f *FakeEndpointProxy) RemoveRedirect(id string, wg *completion.WaitGroup) (error, revert.FinalizeFunc, revert.RevertFunc)

RemoveRedirect does nothing.

func (*FakeEndpointProxy) UpdateNetworkPolicy added in v0.15.7 

func (f *FakeEndpointProxy) UpdateNetworkPolicy(ep logger.EndpointUpdater, policy *policy.L4Policy, ingressPolicyEnforced, egressPolicyEnforced bool, wg *completion.WaitGroup) (error, func() error)

UpdateNetworkPolicy does nothing.

func (*FakeEndpointProxy) UseCurrentNetworkPolicy added in v1.7.0 

func (f *FakeEndpointProxy) UseCurrentNetworkPolicy(ep logger.EndpointUpdater, policy *policy.L4Policy, wg *completion.WaitGroup)

UseCurrentNetworkPolicy does nothing.

type MetadataResolverCB added in v0.15.7 

type MetadataResolverCB func(ns, podName string) (pod *slim_corev1.Pod, _ []slim_corev1.ContainerPort, identityLabels labels.Labels, infoLabels labels.Labels, annotations map[string]string, err error)

MetadataResolverCB provides an implementation for resolving the endpoint metadata for an endpoint such as the associated labels and annotations.

type Status 

type Status struct {
	Code  StatusCode `json:"code"`
	Msg   string     `json:"msg"`
	Type  StatusType `json:"status-type"`
	State string     `json:"state"`
}

func (Status) String 

func (s Status) String() string

type StatusCode 

type StatusCode int
const (
	OK       StatusCode = 0
	Warning  StatusCode = -1
	Failure  StatusCode = -2
	Disabled StatusCode = -3
)

func (StatusCode) String 

func (sc StatusCode) String() string

type StatusResponse 

type StatusResponse struct {
	KVStore    Status              `json:"kvstore"`
	Docker     Status              `json:"docker"`
	Kubernetes Status              `json:"kubernetes"`
	Cilium     Status              `json:"cilium"`
	IPAMStatus map[string][]string `json:",omitempty"`
}

type StatusType 

type StatusType int

StatusType represents the type for the given status, higher the value, higher the priority. 

const (
	BPF    StatusType = 200
	Policy StatusType = 100
	Other  StatusType = 0
)

type UpdateCompilationError 

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

func (UpdateCompilationError) Error 

func (e UpdateCompilationError) Error() string

type UpdateStateChangeError added in v0.15.7 

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

UpdateStateChangeError is an error that indicates that updating the state of an endpoint was unsuccessful. Implements error interface.

func (UpdateStateChangeError) Error added in v0.15.7 

func (e UpdateStateChangeError) Error() string

type UpdateValidationError 

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

func (UpdateValidationError) Error 

func (e UpdateValidationError) Error() string

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