dns

Documentation

Index

• Constants
• type Config
  • func DefaultConfig() *Config
  • func (c *Config) Validate() error
• type Resolver
  • func New(cfg *Config) (*Resolver, error)
  • func NewResolver(cfg *Config) *Resolver
  • func (r *Resolver) GetUpstream() string
  • func (r *Resolver) Resolve(ctx context.Context, domain string) ([]net.IP, error)
  • func (r *Resolver) ResolveUpstream(ctx context.Context, domain string) ([]net.IP, error)
  • func (r *Resolver) SetDialContext(dialFn func(ctx context.Context, network, address string) (net.Conn, error))
  • func (r *Resolver) SetUpstream(upstream string)

Constants

const (
	ModuleName    = "dns.resolver"
	ModuleVersion = "1.0.0"

	DefaultCacheSize = 10000
	DefaultCacheTTL  = 5 * time.Minute
)

Types

type Config

type Config struct {
	Upstream        string
	FakeIPEnabled   bool
	FakeIPRange     string
	CacheEnabled    bool
	CacheSize       int
	CacheTTL        time.Duration
	BlockingEnabled bool
	BlockLists      []string
	DialContext     func(ctx context.Context, network, address string) (net.Conn, error)
	BypassFunc      func(hostname string) bool
	BypassResolver  *net.Resolver
}

func DefaultConfig

func DefaultConfig() *Config

func (*Config) Validate

func (c *Config) Validate() error

type Resolver

type Resolver struct {
	*base.Module
	// contains filtered or unexported fields
}

func New

func New(cfg *Config) (*Resolver, error)

func NewResolver

func NewResolver(cfg *Config) *Resolver

func (*Resolver) GetUpstream

func (r *Resolver) GetUpstream() string

func (*Resolver) Resolve

func (r *Resolver) Resolve(ctx context.Context, domain string) ([]net.IP, error)

func (*Resolver) ResolveUpstream

func (r *Resolver) ResolveUpstream(ctx context.Context, domain string) ([]net.IP, error)

func (*Resolver) SetDialContext

func (r *Resolver) SetDialContext(dialFn func(ctx context.Context, network, address string) (net.Conn, error))

func (*Resolver) SetUpstream

func (r *Resolver) SetUpstream(upstream string)