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authorMartin Holst Swende <martin@swende.se>2018-10-05 15:32:35 +0800
committerPéter Szilágyi <peterke@gmail.com>2018-10-05 15:32:35 +0800
commit092df3ab59faae27b11ec737fffcadb3bc8ea636 (patch)
treec82582f25640ff7eea3766a42bde18a6328567fa /core/vm
parent81375a3801564296a7ade3e7b5bde5fd63269d72 (diff)
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core/vm: SHA3 word cost for CREATE2 (#17812)
* core/vm: create2 address generation tests * core/vm: per byte cost of CREATE2 * core/vm: fix linter issue in test
Diffstat (limited to 'core/vm')
-rw-r--r--core/vm/gas_table.go11
-rw-r--r--core/vm/instructions_test.go76
2 files changed, 87 insertions, 0 deletions
diff --git a/core/vm/gas_table.go b/core/vm/gas_table.go
index 10b4f719a..df79f86ec 100644
--- a/core/vm/gas_table.go
+++ b/core/vm/gas_table.go
@@ -347,6 +347,17 @@ func gasCreate2(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack,
if gas, overflow = math.SafeAdd(gas, params.Create2Gas); overflow {
return 0, errGasUintOverflow
}
+ wordGas, overflow := bigUint64(stack.Back(2))
+ if overflow {
+ return 0, errGasUintOverflow
+ }
+ if wordGas, overflow = math.SafeMul(toWordSize(wordGas), params.Sha3WordGas); overflow {
+ return 0, errGasUintOverflow
+ }
+ if gas, overflow = math.SafeAdd(gas, wordGas); overflow {
+ return 0, errGasUintOverflow
+ }
+
return gas, nil
}
diff --git a/core/vm/instructions_test.go b/core/vm/instructions_test.go
index 48caadf1f..c0e62e4ce 100644
--- a/core/vm/instructions_test.go
+++ b/core/vm/instructions_test.go
@@ -17,10 +17,12 @@
package vm
import (
+ "bytes"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/params"
)
@@ -489,3 +491,77 @@ func BenchmarkOpMstore(bench *testing.B) {
}
poolOfIntPools.put(evmInterpreter.intPool)
}
+
+func TestCreate2Addreses(t *testing.T) {
+ type testcase struct {
+ origin string
+ salt string
+ code string
+ expected string
+ }
+
+ for i, tt := range []testcase{
+ {
+ origin: "0x0000000000000000000000000000000000000000",
+ salt: "0x0000000000000000000000000000000000000000",
+ code: "0x00",
+ expected: "0x4d1a2e2bb4f88f0250f26ffff098b0b30b26bf38",
+ },
+ {
+ origin: "0xdeadbeef00000000000000000000000000000000",
+ salt: "0x0000000000000000000000000000000000000000",
+ code: "0x00",
+ expected: "0xB928f69Bb1D91Cd65274e3c79d8986362984fDA3",
+ },
+ {
+ origin: "0xdeadbeef00000000000000000000000000000000",
+ salt: "0xfeed000000000000000000000000000000000000",
+ code: "0x00",
+ expected: "0xD04116cDd17beBE565EB2422F2497E06cC1C9833",
+ },
+ {
+ origin: "0x0000000000000000000000000000000000000000",
+ salt: "0x0000000000000000000000000000000000000000",
+ code: "0xdeadbeef",
+ expected: "0x70f2b2914A2a4b783FaEFb75f459A580616Fcb5e",
+ },
+ {
+ origin: "0x00000000000000000000000000000000deadbeef",
+ salt: "0xcafebabe",
+ code: "0xdeadbeef",
+ expected: "0x60f3f640a8508fC6a86d45DF051962668E1e8AC7",
+ },
+ {
+ origin: "0x00000000000000000000000000000000deadbeef",
+ salt: "0xcafebabe",
+ code: "0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef",
+ expected: "0x1d8bfDC5D46DC4f61D6b6115972536eBE6A8854C",
+ },
+ {
+ origin: "0x0000000000000000000000000000000000000000",
+ salt: "0x0000000000000000000000000000000000000000",
+ code: "0x",
+ expected: "0xE33C0C7F7df4809055C3ebA6c09CFe4BaF1BD9e0",
+ },
+ } {
+
+ origin := common.BytesToAddress(common.FromHex(tt.origin))
+ salt := common.BytesToHash(common.FromHex(tt.salt))
+ code := common.FromHex(tt.code)
+ address := crypto.CreateAddress2(origin, salt, code)
+ /*
+ stack := newstack()
+ // salt, but we don't need that for this test
+ stack.push(big.NewInt(int64(len(code)))) //size
+ stack.push(big.NewInt(0)) // memstart
+ stack.push(big.NewInt(0)) // value
+ gas, _ := gasCreate2(params.GasTable{}, nil, nil, stack, nil, 0)
+ fmt.Printf("Example %d\n* address `0x%x`\n* salt `0x%x`\n* init_code `0x%x`\n* gas (assuming no mem expansion): `%v`\n* result: `%s`\n\n", i,origin, salt, code, gas, address.String())
+ */
+ expected := common.BytesToAddress(common.FromHex(tt.expected))
+ if !bytes.Equal(expected.Bytes(), address.Bytes()) {
+ t.Errorf("test %d: expected %s, got %s", i, expected.String(), address.String())
+ }
+
+ }
+}