42 lines
1.5 KiB
Go
42 lines
1.5 KiB
Go
package slashing
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import (
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"encoding/binary"
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"fmt"
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sdk "github.com/cosmos/cosmos-sdk/types"
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abci "github.com/tendermint/tendermint/abci/types"
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tmtypes "github.com/tendermint/tendermint/types"
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)
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// slashing begin block functionality
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func BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock, sk Keeper) (tags sdk.Tags) {
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// Tag the height
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heightBytes := make([]byte, 8)
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binary.LittleEndian.PutUint64(heightBytes, uint64(req.Header.Height))
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tags = sdk.NewTags("height", heightBytes)
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// Iterate over all the validators which *should* have signed this block
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// Store whether or not they have actually signed it and slash/unbond any
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// which have missed too many blocks in a row (downtime slashing)
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for _, signingValidator := range req.LastCommitInfo.GetValidators() {
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present := signingValidator.SignedLastBlock
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sk.handleValidatorSignature(ctx, signingValidator.Validator.Address, signingValidator.Validator.Power, present)
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}
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// Iterate through any newly discovered evidence of infraction
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// Slash any validators (and since-unbonded stake within the unbonding period)
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// who contributed to valid infractions
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for _, evidence := range req.ByzantineValidators {
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switch evidence.Type {
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case tmtypes.ABCIEvidenceTypeDuplicateVote:
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sk.handleDoubleSign(ctx, evidence.Validator.Address, evidence.Height, evidence.Time, evidence.Validator.Power)
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default:
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ctx.Logger().With("module", "x/slashing").Error(fmt.Sprintf("ignored unknown evidence type: %s", evidence.Type))
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}
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}
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return
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}
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