dnscache

Documentation

Index

• Constants
• Variables
• type Config
• type DNSCache
  • func New(config Config) (*DNSCache, error)
  • func (nc *DNSCache) Add(event *trace.Event) error
  • func (nc *DNSCache) Get(key string) (cacheQuery, error)
• type DNSDatasource
  • func NewDataSource(d *DNSCache) *DNSDatasource
  • func (ctx DNSDatasource) Get(key interface{}) (map[string]interface{}, error)
  • func (ctx DNSDatasource) ID() string
  • func (ctx DNSDatasource) Keys() []string
  • func (ctx DNSDatasource) Namespace() string
  • func (ctx DNSDatasource) Schema() string
  • func (ctx DNSDatasource) Version() uint

Constants

const (
	InvalidNode nodeType = iota
	DNS
	IP
)

const (
	DefaultCacheSize = 5000 // default size for maximum query roots in the cache (more nodes are possible)
)

Variables

var ErrDNSRecordExpired = errors.New("dns record expired")

var ErrDNSRecordNotFound = errors.New("no such dns record")

var ErrDataNotFound = errors.New("requested data was not found")

var ErrKeyNotSupported = errors.New("queried key is not supported")

Types

type Config

type Config struct {
	CacheSize int
	Enable    bool
}

type DNSCache

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

func New

func New(config Config) (*DNSCache, error)

func (*DNSCache) Add

func (nc *DNSCache) Add(event *trace.Event) error

func (*DNSCache) Get

func (nc *DNSCache) Get(key string) (cacheQuery, error)

Get returns all parent and child DNS records relative to the given record value. Note, that the query does not traverse the tree downwards from the parent nodes.

type DNSDatasource

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

func NewDataSource

func NewDataSource(d *DNSCache) *DNSDatasource

func (DNSDatasource) Get

func (ctx DNSDatasource) Get(key interface{}) (map[string]interface{}, error)

func (DNSDatasource) ID

func (ctx DNSDatasource) ID() string

func (DNSDatasource) Keys

func (ctx DNSDatasource) Keys() []string

func (DNSDatasource) Namespace

func (ctx DNSDatasource) Namespace() string

func (DNSDatasource) Schema

func (ctx DNSDatasource) Schema() string

func (DNSDatasource) Version

func (ctx DNSDatasource) Version() uint