Enum Error 

pub enum Error {
    MachineNotAuthorized(Url),
    NeedsMachineAuth,
    InvalidUrl(Url),
    Registration(String),
    RateLimited(Duration),
    NetworkError(Operation),
    Internal(InternalErrorKind, Operation),
}

An error which occurred while connecting to the control server or control plane.

Variants

MachineNotAuthorized(Url)

A machine was not authorized by control to join tailnet; authorize via the supplied URL.

NeedsMachineAuth

A machine is not yet authorized and control offered no interactive auth URL — it is awaiting admin approval on an approval-gated tailnet. Transient and recoverable: the node holds a valid key and must poll-and-retry registration until an admin approves, then it comes up with no re-registration (Go’s ipn.State::NeedsMachineAuth → Starting auto-transition). Distinct from Internal(MachineAuthorization, _) so the control runner can tell “awaiting approval” (poll) apart from a hard internal failure (stop), and from MachineNotAuthorized which carries a URL for interactive login.

InvalidUrl(Url)

The user supplied an invalid URL.

Registration(String)

Control rejected registration with a specific reason (e.g. a bad/expired/unknown auth key). The string is control’s verbatim RegisterResponse.Error message.

RateLimited(Duration)

Control rate-limited us (HTTP 429). The Duration is the server-requested cooldown (from Retry-After); the retry loop waits exactly this before the next attempt rather than its own backoff, so we never re-hit control inside the cooldown.

NetworkError(Operation)

Some kind of networking error.

These might be addressed by retrying, or might be an unresolvable error.

Operation is intended to be informational, rather then inspected during handling.

Internal(InternalErrorKind, Operation)

An internal error that users of the library are not expected to handle.

InternalErrorKind and Operation are intended to be informational, rather then inspected during handling.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Error

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for Error

fn from(error: Error) -> Self

Converts to this type from the input type.

impl PartialEq for Error

fn eq(&self, other: &Error) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Error