tailcat

package module

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Versions in this module

v0

v0.7.0

Sep 18, 2026

Changes in this version

type SSHOptions

+ Exec []string

type Server

+ func (s *Server) ExecConnHandler(argv []string) func(net.Conn)

+ func (s *Server) Listen(ctx context.Context, network, address string) (net.Listener, error)

+ func (s *Server) PeerEnv(local, remote net.Addr) []string

v0.6.0

Sep 4, 2026

Changes in this version

+ const DefaultUDPIdleTimeout

+ const MaxUDPPayload

+ func ProxyPacketConns(a, b ConnPacketConn)

+ func ValidateSSHAuthorizedKeys(texts []string) error

type Client

+ func (c *Client) DialUDP(ctx context.Context, ap netip.AddrPort) (ConnPacketConn, error)

+ func (c *Client) DialUDPPort(ctx context.Context, port uint16) (ConnPacketConn, error)

type ConnInfo

+ PresharedKey PresharedKey

+ type ConnPacketConn interface

+ type PresharedKey device.NoisePresharedKey

+ func NewPresharedKey() (ret PresharedKey)

+ func (p *PresharedKey) UnmarshalBinary(x []byte) error

+ func (p *PresharedKey) UnmarshalText(x []byte) error

+ func (p PresharedKey) Equal(q PresharedKey) bool

+ func (p PresharedKey) IsZero() bool

+ func (p PresharedKey) MarshalBinary() ([]byte, error)

+ func (p PresharedKey) MarshalText() ([]byte, error)

type SSHOptions

+ AuthorizedKeys []string

type Server

+ DisablePresharedKey bool

+ OnUDP func(port uint16) (handler func(ConnPacketConn))

+ OnUDPForward func(netip.AddrPort) (handler func(ConnPacketConn))

+ PresharedKey PresharedKey

+ ServedUDPPorts []filter.PortRange

+ UDPIdleTimeout time.Duration

v0.5.0

Sep 2, 2026

Changes in this version

+ func ParseAddrRaw(addr Addr) (any, error)

+ type Addr string

+ func (a Addr) Resolve(ctx context.Context, opts ...any) (Addr, error)

type ConnInfo

+ func ParseAddr(addr Addr) (ConnInfo, error)

+ func (ci *ConnInfo) Addr() Addr

type FileServeMode

+ const FileServeWOPlus

type Server

+ func (s *Server) TailcatAddr() Addr

v0.4.0

Aug 31, 2026

Changes in this version

+ type FileServeMode byte

+ const FileServeRO

+ const FileServeRW

+ const FileServeWO

+ type FileService struct

+ Dir string

+ Mode FileServeMode

+ type SSHOptions struct

+ Files *FileService

+ Shell bool

type Server

+ func (s *Server) SSHConnHandler(opts SSHOptions) func(net.Conn)

v0.3.0

Aug 30, 2026

Changes in this version

type Client

+ func (c *Client) DrainTCP(ctx context.Context) error

type ConnInfo

+ ServerDiscoPublic DiscoPublic

+ type DiscoPublic struct

+ func DiscoPublicForNode(k key.NodePrivate) DiscoPublic

+ func (a DiscoPublic) Equal(b DiscoPublic) bool

+ func (p *DiscoPublic) UnmarshalBinary(x []byte) error

+ func (p DiscoPublic) MarshalBinary() ([]byte, error)

v0.2.0

Aug 30, 2026

v0.1.0

Aug 30, 2026

Changes in this version

+ const DefaultDERPMapURL

+ var ExpandForServer expandForServer

+ var README string

+ var Verbose = false

+ func EncodeMeowPing(nodeKey key.NodePublic, discoKey key.DiscoPublic) []byte

+ func EncodeMeowed() []byte

+ func FetchDERPMap(ctx context.Context, opts ...any) (*tailcfg.DERPMap, error)

+ func IsMeowPacket(pkt []byte) bool

+ func IsMeowedPacket(pkt []byte) bool

+ func ParseConnBlobRaw(cb ConnBlob) (any, error)

+ func ParseMeowPing(pkt []byte) (nodeKey key.NodePublic, discoKey key.DiscoPublic, ok bool)

+ func PickBestRegion(ctx context.Context, dm *tailcfg.DERPMap) (regionID int, err error)

+ func ProxyConns(a, b net.Conn)

+ func SupportsSSHServer() bool

+ type Client struct

+ DERPMapCache DERPMapCache

+ DERPMapURL string

+ Key key.NodePrivate

+ Logf logger.Logf

+ Server ConnBlob

+ func NewClient(server ConnBlob) *Client

+ func (c *Client) Close() error

+ func (c *Client) Dial(ctx context.Context, network, addr string) (net.Conn, error)

+ func (c *Client) DialTCP(ctx context.Context, ap netip.AddrPort) (net.Conn, error)

+ func (c *Client) DialTCPPort(ctx context.Context, port uint16) (net.Conn, error)

+ func (c *Client) DiscoPing(ctx context.Context) (*ipnstate.PingResult, error)

+ func (c *Client) Ping(ctx context.Context) (PingResult, error)

+ func (c *Client) PublicKey() key.NodePublic

+ type ConnBlob string

+ func (b ConnBlob) Resolve(ctx context.Context, opts ...any) (ConnBlob, error)

+ type ConnInfo struct

+ Region []*tailcfg.DERPRegion

+ RegionID int

+ ServerPublic NodePublic

+ func ParseConnBlob(cb ConnBlob) (ConnInfo, error)

+ func (ci *ConnInfo) ConnBlob() ConnBlob

+ func (ci *ConnInfo) Expand(ctx context.Context, opts ...any) error

+ type DERPMapCache interface

+ Get func(url string) (data []byte, etag string, storedAt time.Time, ok bool)

+ Put func(url string, data []byte, etag string) error

+ type DERPMapURL string

+ type NodePublic struct

+ func (a NodePublic) Equal(b NodePublic) bool

+ func (p *NodePublic) UnmarshalBinary(x []byte) error

+ func (p NodePublic) MarshalBinary() ([]byte, error)

+ type PingResult struct

+ Latency time.Duration

+ type PrivateKey struct

+ Private key.NodePrivate

+ Public ConnInfo

+ func NewPrivateKey() *PrivateKey

+ type Server struct

+ AllowProxy func(netip.AddrPort) bool

+ AllowedClients []key.NodePublic

+ DERPMapCache DERPMapCache

+ DERPMapURL string

+ Key key.NodePrivate

+ Logf logger.Logf

+ OnTCP func(port uint16) (handler func(net.Conn))

+ OnTCPForward func(netip.AddrPort) (handler func(net.Conn))

+ Region *tailcfg.DERPRegion

+ RegionID int

+ ServedTCPPorts []filter.PortRange

+ func (s *Server) AddAllowedClient(k key.NodePublic)

+ func (s *Server) Addr() netip.Addr

+ func (s *Server) Close() error

+ func (s *Server) ConnBlob() ConnBlob

+ func (s *Server) DrainTCP(ctx context.Context) error

+ func (s *Server) HandleTailscaleSSHConn(c net.Conn)

+ func (s *Server) Start() error

+ func (s *Server) Status() *ipnstate.Status

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