45 lines
1.3 KiB
Go
45 lines
1.3 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/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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// Deal with any equivocation evidence
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for _, evidence := range req.ByzantineValidators {
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pk, err := tmtypes.PB2TM.PubKey(evidence.Validator.PubKey)
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if err != nil {
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panic(err)
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}
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switch string(evidence.Type) {
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case tmtypes.ABCIEvidenceTypeDuplicateVote:
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sk.handleDoubleSign(ctx, evidence.Height, evidence.Time, pk)
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default:
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ctx.Logger().With("module", "x/slashing").Error(fmt.Sprintf("Ignored unknown evidence type: %s", string(evidence.Type)))
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}
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}
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// Iterate over all the validators which *should* have signed this block
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for _, validator := range req.Validators {
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present := validator.SignedLastBlock
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pubkey, err := tmtypes.PB2TM.PubKey(validator.Validator.PubKey)
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if err != nil {
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panic(err)
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}
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sk.handleValidatorSignature(ctx, pubkey, present)
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}
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return
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}
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