policy

package
v0.0.0-...-63462f0 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Jun 29, 2023 License: GPL-2.0 Imports: 4 Imported by: 3

Documentation

Overview

Package policy describes a generic interface for retrieving policies. Different implementations are possible for environments such as Kubernetes, Mesos or other custom environments. An implementation has to provide a method for retrieving policy based on the metadata associated with the container and deleting the policy when the container dies. It is up to the implementation to decide how to generate the policy. The package also defines the basic data structure for communicating policy information. The implementations are responsible for providing all the necessary data.

Index

Constants

View Source 
const (
	// AllowAll allows everything for the specific PU.
	AllowAll = 0x1
	// Police filters on the PU based on the PolicyRules.
	Police = 0x2
)
View Source 
const (
	// Equal is the equal operator
	Equal = "="
	// NotEqual is the not equal operator
	NotEqual = "=!"
	// KeyExists is the key=* operator
	KeyExists = "*"
	// KeyNotExists means that the key doesnt exist in the incoming tags
	KeyNotExists = "!*"
)
View Source 
const (
	// DefaultNamespace is the default namespace for applying policy
	DefaultNamespace = "bridge"
)

Variables

This section is empty.

Functions

This section is empty.

Types

type ActionType 

type ActionType byte

ActionType is the action that can be applied to a flow. 

const (
	// Accept is the accept action
	Accept ActionType = 0x1
	// Reject is the reject  action
	Reject ActionType = 0x2
	// Encrypt instructs data to be encrypted
	Encrypt ActionType = 0x4
	// Log instructs the datapath to log the IP addresses
	Log ActionType = 0x8
)

func (ActionType) Accepted 

func (f ActionType) Accepted() bool

Accepted returns if the action mask contains the Accepted mask.

func (ActionType) ActionString 

func (f ActionType) ActionString() string

ActionString returns if the action if accepted of rejected as a long string.

func (ActionType) Encrypted 

func (f ActionType) Encrypted() bool

Encrypted returns if the action mask contains the Encrypted mask.

func (ActionType) Logged 

func (f ActionType) Logged() bool

Logged returns if the action mask contains the Logged mask.

func (ActionType) Rejected 

func (f ActionType) Rejected() bool

Rejected returns if the action mask contains the Rejected mask.

func (ActionType) ShortActionString 

func (f ActionType) ShortActionString() string

ShortActionString returns if the action if accepted of rejected as a short string.

func (ActionType) String 

func (f ActionType) String() string

type ExtendedMap 

type ExtendedMap map[string]string

ExtendedMap is a common map with additional functions

func (ExtendedMap) Copy 

func (s ExtendedMap) Copy() ExtendedMap

Copy copies an ExtendedMap

func (ExtendedMap) Get 

func (s ExtendedMap) Get(key string) (string, bool)

Get does a lookup in the map

type FlowPolicy 

type FlowPolicy struct {
	Action    ActionType
	ServiceID string
	PolicyID  string
}

FlowPolicy captures the policy for a particular flow

type IPRule 

type IPRule struct {
	Address  string
	Port     string
	Protocol string
	Policy   *FlowPolicy
}

IPRule holds IP rules to external services

type IPRuleList 

type IPRuleList []IPRule

IPRuleList is a list of IP rules

func (IPRuleList) Copy 

func (l IPRuleList) Copy() IPRuleList

Copy creates a clone of the IP rule list

type KeyValueOperator 

type KeyValueOperator struct {
	Key      string
	Value    []string
	Operator Operator
}

KeyValueOperator describes an individual matching rule

type Operator 

type Operator string

Operator defines the operation between your key and value.

type PUAction 

type PUAction int

PUAction defines the action types that applies for a specific PU as a whole.

type PUInfo 

type PUInfo struct {
	// ContextID is the ID of the container that the policy applies to
	ContextID string
	// Policy is an instantiation of the container policy
	Policy *PUPolicy
	// RunTime captures all data that are captured from the container
	Runtime *PURuntime
}

PUInfo captures all policy information related to a connection

func NewPUInfo 

func NewPUInfo(contextID string, puType constants.PUType) *PUInfo

NewPUInfo instantiates a new ContainerPolicy

func PUInfoFromPolicyAndRuntime 

func PUInfoFromPolicyAndRuntime(contextID string, policyInfo *PUPolicy, runtimeInfo *PURuntime) *PUInfo

PUInfoFromPolicyAndRuntime generates a ContainerInfo Struct from an existing RuntimeInfo and PolicyInfo

type PUPolicy 

type PUPolicy struct {
	sync.Mutex
	// contains filtered or unexported fields
}

PUPolicy captures all policy information related ot the container

func NewPUPolicy 

func NewPUPolicy(
	id string,
	action PUAction,
	appACLs,
	netACLs IPRuleList,
	txtags, rxtags TagSelectorList,
	identity, annotations *TagStore,
	ips ExtendedMap,
	triremeNetworks []string,
	excludedNetworks []string) *PUPolicy

NewPUPolicy generates a new ContainerPolicyInfo appACLs are the ACLs for packet coming from the Application/PU to the Network. netACLs are the ACLs for packet coming from the Network to the Application/PU.

func NewPUPolicyWithDefaults 

func NewPUPolicyWithDefaults() *PUPolicy

NewPUPolicyWithDefaults sets up a PU policy with defaults

func (*PUPolicy) AddIdentityTag 

func (p *PUPolicy) AddIdentityTag(k, v string)

AddIdentityTag adds a policy tag

func (*PUPolicy) AddReceiverRules 

func (p *PUPolicy) AddReceiverRules(t TagSelector)

AddReceiverRules adds a receiver rule

func (*PUPolicy) AddTransmitterRules 

func (p *PUPolicy) AddTransmitterRules(t TagSelector)

AddTransmitterRules adds a transmitter rule

func (*PUPolicy) Annotations 

func (p *PUPolicy) Annotations() *TagStore

Annotations returns a copy of the annotations

func (*PUPolicy) ApplicationACLs 

func (p *PUPolicy) ApplicationACLs() IPRuleList

ApplicationACLs returns a copy of IPRuleList

func (*PUPolicy) Clone 

func (p *PUPolicy) Clone() *PUPolicy

Clone returns a copy of the policy

func (*PUPolicy) DefaultIPAddress 

func (p *PUPolicy) DefaultIPAddress() (string, bool)

DefaultIPAddress returns the default IP address for the processing unit

func (*PUPolicy) ExcludedNetworks 

func (p *PUPolicy) ExcludedNetworks() []string

ExcludedNetworks returns the list of excluded networks.

func (*PUPolicy) IPAddresses 

func (p *PUPolicy) IPAddresses() ExtendedMap

IPAddresses returns all the IP addresses for the processing unit

func (*PUPolicy) Identity 

func (p *PUPolicy) Identity() *TagStore

Identity returns a copy of the Identity

func (*PUPolicy) ManagementID 

func (p *PUPolicy) ManagementID() string

ManagementID returns the management ID

func (*PUPolicy) NetworkACLs 

func (p *PUPolicy) NetworkACLs() IPRuleList

NetworkACLs returns a copy of IPRuleList

func (*PUPolicy) ReceiverRules 

func (p *PUPolicy) ReceiverRules() TagSelectorList

ReceiverRules returns a copy of TagSelectorList

func (*PUPolicy) SetIPAddresses 

func (p *PUPolicy) SetIPAddresses(l ExtendedMap)

SetIPAddresses sets the IP addresses for the processing unit

func (*PUPolicy) SetTriremeAction 

func (p *PUPolicy) SetTriremeAction(action PUAction)

SetTriremeAction returns the TriremeAction

func (*PUPolicy) TransmitterRules 

func (p *PUPolicy) TransmitterRules() TagSelectorList

TransmitterRules returns a copy of TagSelectorList

func (*PUPolicy) TriremeAction 

func (p *PUPolicy) TriremeAction() PUAction

TriremeAction returns the TriremeAction

func (*PUPolicy) TriremeNetworks 

func (p *PUPolicy) TriremeNetworks() []string

TriremeNetworks returns the list of networks that Trireme must be applied

func (*PUPolicy) UpdateExcludedNetworks 

func (p *PUPolicy) UpdateExcludedNetworks(networks []string)

UpdateExcludedNetworks updates the list of excluded networks.

func (*PUPolicy) UpdateTriremeNetworks 

func (p *PUPolicy) UpdateTriremeNetworks(networks []string)

UpdateTriremeNetworks updates the set of networks for trireme

type PURuntime 

type PURuntime struct {

	// GlobalLock is used by Trireme to make sure that two operations do not
	// get interleaved for the same container.
	GlobalLock *sync.Mutex

	sync.Mutex
	// contains filtered or unexported fields
}

PURuntime holds all data related to the status of the container run time

func NewPURuntime 

func NewPURuntime(name string, pid int, tags *TagStore, ips ExtendedMap, puType constants.PUType, options ExtendedMap) *PURuntime

NewPURuntime Generate a new RuntimeInfo

func NewPURuntimeWithDefaults 

func NewPURuntimeWithDefaults() *PURuntime

NewPURuntimeWithDefaults sets up PURuntime with defaults

func (*PURuntime) Clone 

func (r *PURuntime) Clone() *PURuntime

Clone returns a copy of the policy

func (*PURuntime) DefaultIPAddress 

func (r *PURuntime) DefaultIPAddress() (string, bool)

DefaultIPAddress returns the default IP address for the processing unit

func (*PURuntime) IPAddresses 

func (r *PURuntime) IPAddresses() ExtendedMap

IPAddresses returns all the IP addresses for the processing unit

func (*PURuntime) MarshalJSON 

func (r *PURuntime) MarshalJSON() ([]byte, error)

MarshalJSON Marshals this struct.

func (*PURuntime) Name 

func (r *PURuntime) Name() string

Name returns the PID

func (*PURuntime) Options 

func (r *PURuntime) Options() ExtendedMap

Options returns tags for the processing unit

func (*PURuntime) PUType 

func (r *PURuntime) PUType() constants.PUType

PUType returns the PU type

func (*PURuntime) Pid 

func (r *PURuntime) Pid() int

Pid returns the PID

func (*PURuntime) SetIPAddresses 

func (r *PURuntime) SetIPAddresses(ipa ExtendedMap)

SetIPAddresses sets up all the IP addresses for the processing unit

func (*PURuntime) SetOptions 

func (r *PURuntime) SetOptions(options ExtendedMap)

SetOptions sets the Options

func (*PURuntime) SetPUType 

func (r *PURuntime) SetPUType(puType constants.PUType)

SetPUType sets the PU Type

func (*PURuntime) SetPid 

func (r *PURuntime) SetPid(pid int)

SetPid sets the PID

func (*PURuntime) Tag 

func (r *PURuntime) Tag(key string) (string, bool)

Tag returns a specific tag for the processing unit

func (*PURuntime) Tags 

func (r *PURuntime) Tags() *TagStore

Tags returns tags for the processing unit

func (*PURuntime) UnmarshalJSON 

func (r *PURuntime) UnmarshalJSON(param []byte) error

UnmarshalJSON Unmarshals this struct.

type PURuntimeJSON 

type PURuntimeJSON struct {
	// PUType is the type of the PU
	PUType constants.PUType
	// Pid holds the value of the first process of the container
	Pid int
	// Name is the name of the container
	Name string
	// IPAddress is the IP Address of the container
	IPAddresses ExtendedMap
	// Tags is a map of the metadata of the container
	Tags *TagStore
	// Options is a map of the options of the container
	Options ExtendedMap
}

PURuntimeJSON is a Json representation of PURuntime

type RuntimeReader 

type RuntimeReader interface {

	// Pid returns the Pid of the Runtime.
	Pid() int

	// Name returns the process name of the Runtime.
	Name() string

	// Tag returns  the value of the given tag.
	Tag(string) (string, bool)

	// Tags returns a copy of the list of the tags.
	Tags() *TagStore

	// Options returns a copy of the list of options.
	Options() ExtendedMap

	// DefaultIPAddress retutns the default IP address.
	DefaultIPAddress() (string, bool)

	// IPAddresses returns a copy of all the IP addresses.
	IPAddresses() ExtendedMap

	// Returns the PUType for the PU
	PUType() constants.PUType
}

A RuntimeReader allows to get the specific parameters stored in the Runtime

type TagSelector 

type TagSelector struct {
	Clause []KeyValueOperator
	Policy *FlowPolicy
}

TagSelector info describes a tag selector key Operator value

type TagSelectorList 

type TagSelectorList []TagSelector

TagSelectorList defines a list of TagSelectors

func (TagSelectorList) Copy 

func (t TagSelectorList) Copy() TagSelectorList

Copy returns a copy of the TagSelectorList

type TagStore 

type TagStore struct {
	Tags []string
}

TagStore stores the tags - it allows duplicate key values

func NewTagStore 

func NewTagStore() *TagStore

NewTagStore creates a new TagStore

func NewTagStoreFromMap 

func NewTagStoreFromMap(tags map[string]string) *TagStore

NewTagStoreFromMap creates a tag store from an input map

func (*TagStore) AppendKeyValue 

func (t *TagStore) AppendKeyValue(key, value string)

AppendKeyValue appends a key and value to the tag store

func (*TagStore) Copy 

func (t *TagStore) Copy() *TagStore

Copy copies an ExtendedMap

func (*TagStore) Get 

func (t *TagStore) Get(key string) (string, bool)

Get does a lookup in the list of tags

func (*TagStore) GetSlice 

func (t *TagStore) GetSlice() []string

GetSlice returns the tagstore as a slice

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.