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[release/1.4.16] eth: monitor malicious header retrieval requests

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(cherry picked from commit e482b5694f)
This commit is contained in:
Péter Szilágyi
2016-10-05 16:31:48 +03:00
committed by Felix Lange
parent 718881bd35
commit f7e6fb7d1c
2 changed files with 31 additions and 5 deletions
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15
eth/handler_test.go
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@ -17,6 +17,7 @@
package eth
import (
"math"
"math/big"
"math/rand"
"testing"
@ -173,6 +174,20 @@ func testGetBlockHeaders(t *testing.T, protocol int) {
pm.blockchain.GetBlockByNumber(0).Hash(),
},
},
// Check a corner case where skipping overflow loops back into the chain start
{
&getBlockHeadersData{Origin: hashOrNumber{Hash: pm.blockchain.GetBlockByNumber(3).Hash()}, Amount: 2, Reverse: false, Skip: math.MaxUint64 - 1},
[]common.Hash{
pm.blockchain.GetBlockByNumber(3).Hash(),
},
},
// Check a corner case where skipping overflow loops back to the same header
{
&getBlockHeadersData{Origin: hashOrNumber{Hash: pm.blockchain.GetBlockByNumber(1).Hash()}, Amount: 2, Reverse: false, Skip: math.MaxUint64},
[]common.Hash{
pm.blockchain.GetBlockByNumber(1).Hash(),
},
},
// Check that non existing headers aren't returned
{
&getBlockHeadersData{Origin: hashOrNumber{Hash: unknown}, Amount: 1},