mirror of
https://github.com/tendermint/tendermint.git
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b272746444
* add time warping lunatic attack test * create too high and connecton refused errors and add to the light client provider * add height check to provider * introduce block lag * add detection logic for processing forward lunatic attack * add node-side verification logic * clean up tests and formatting * update adr's * update testing * fix fetching the latest block * format * update changelog * implement suggestions * modify ADR's * format * clean up node evidence verification
44 lines
1.5 KiB
Go
44 lines
1.5 KiB
Go
package provider
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import (
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"errors"
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"fmt"
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)
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var (
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// ErrHeightTooHigh is returned when the height is higher than the last
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// block that the provider has. The light client will not remove the provider
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ErrHeightTooHigh = errors.New("height requested is too high")
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// ErrLightBlockNotFound is returned when a provider can't find the
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// requested header (i.e. it has been pruned).
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// The light client will not remove the provider
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ErrLightBlockNotFound = errors.New("light block not found")
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// ErrNoResponse is returned if the provider doesn't respond to the
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// request in a given time. The light client will not remove the provider
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ErrNoResponse = errors.New("client failed to respond")
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// ErrConnectionClosed is returned if the provider closes the connection.
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// In this case we remove the provider.
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ErrConnectionClosed = errors.New("client closed connection")
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)
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// ErrBadLightBlock is returned when a provider returns an invalid
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// light block. The light client will remove the provider.
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type ErrBadLightBlock struct {
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Reason error
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}
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func (e ErrBadLightBlock) Error() string {
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return fmt.Sprintf("client provided bad signed header: %s", e.Reason.Error())
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}
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// ErrUnreliableProvider is a generic error that indicates that the provider isn't
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// behaving in a reliable manner to the light client. The light client will
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// remove the provider
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type ErrUnreliableProvider struct {
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Reason string
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}
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func (e ErrUnreliableProvider) Error() string {
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return fmt.Sprintf("client deemed unreliable: %s", e.Reason)
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}
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