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(wip) ignore modext case and working when num of txs is less than 257
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@KimiWu123
KimiWu123 committed Mar 31, 2024
1 parent 799a02d commit 08778eb
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Showing 6 changed files with 165 additions and 134 deletions.
16 changes: 7 additions & 9 deletions geth-utils/gethutil/mpt/trie/stacktrie.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -664,7 +664,7 @@ func printProof(ps [][]byte) {
}

func (st *StackTrie) UpdateAndGetProof(db ethdb.KeyValueReader, indexBuf, value []byte) (StackProof, error) {
fmt.Println("====")
fmt.Println(" ====")
proofS, nibblesS, err := st.GetProof(db, indexBuf)
if err != nil {
return StackProof{}, err
Expand All @@ -679,7 +679,6 @@ func (st *StackTrie) UpdateAndGetProof(db ethdb.KeyValueReader, indexBuf, value
return StackProof{}, err
}
len2 := len(proofC)
fmt.Println(" Proof S C ", len1, len2)
printProof(proofC)

// fmt.Println(len1, len2)
Expand All @@ -703,6 +702,7 @@ func (st *StackTrie) UpdateAndGetProofs(db ethdb.KeyValueReader, list types.Deri
// order is correct.
var indexBuf []byte
for i := 1; i < list.Len() && i <= 0x7f; i++ {
fmt.Print(i)
indexBuf = rlp.AppendUint64(indexBuf[:0], uint64(i))
value := types.EncodeForDerive(list, i, valueBuf)
proof, err := st.UpdateAndGetProof(db, indexBuf, value)
Expand All @@ -715,6 +715,7 @@ func (st *StackTrie) UpdateAndGetProofs(db ethdb.KeyValueReader, list types.Deri
// special case when index is 0
// rlp.AppendUint64() encodes index 0 to [128]
if list.Len() > 0 {
fmt.Print("0")
indexBuf = rlp.AppendUint64(indexBuf[:0], 0)
value := types.EncodeForDerive(list, 0, valueBuf)
proof, err := st.UpdateAndGetProof(db, indexBuf, value)
Expand All @@ -725,6 +726,7 @@ func (st *StackTrie) UpdateAndGetProofs(db ethdb.KeyValueReader, list types.Deri
}

for i := 0x80; i < list.Len(); i++ {
fmt.Print(i)
indexBuf = rlp.AppendUint64(indexBuf[:0], uint64(i))
value := types.EncodeForDerive(list, i, valueBuf)
proof, err := st.UpdateAndGetProof(db, indexBuf, value)
Expand All @@ -740,7 +742,7 @@ func (st *StackTrie) UpdateAndGetProofs(db ethdb.KeyValueReader, list types.Deri

func (st *StackTrie) GetProof(db ethdb.KeyValueReader, key []byte) ([][]byte, [][]byte, error) {
k := KeybytesToHex(key)
fmt.Println("k", k)
// fmt.Println("k", k)
if st.nodeType == emptyNode {
return [][]byte{}, nil, nil
}
Expand Down Expand Up @@ -832,8 +834,8 @@ func (st *StackTrie) GetProof(db ethdb.KeyValueReader, key []byte) ([][]byte, []
// fmt.Println("** ", element)

// FIXME only one nibble case
nibble := element[0]
// fmt.Println(" Ext nibble:", nibble)
nibble := element[0] - 16
// fmt.Println(" Ext nibble:", element)
nibbles = append(nibbles, []byte{nibble})
}
}
Expand All @@ -844,9 +846,5 @@ func (st *StackTrie) GetProof(db ethdb.KeyValueReader, key []byte) ([][]byte, []
slices.Reverse(proof)
}

// given a default value
if len(nibbles) == 0 {
nibbles = append(nibbles, []byte{0})
}
return proof, nibbles, nil
}
23 changes: 15 additions & 8 deletions geth-utils/gethutil/mpt/witness/branch.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -31,9 +31,12 @@ func isTxLeaf(proofEl []byte) bool {
check(err)
c, err1 := rlp.CountValues(elems)
check(err1)
fmt.Println("ISLEAF:", c)
isHashedNode := false
if proofEl[0] == 226 && proofEl[1] == 32 && proofEl[2] == 160 {
isHashedNode = true
}
// 9: for tx (Nonce, Gas, GasPrice, Value, To, Data, r, s, v)
return c == 9
return c == 9 || isHashedNode
}

// prepareBranchWitness takes the rows that are to be filled with branch data and it takes
Expand Down Expand Up @@ -84,8 +87,11 @@ func prepareBranchWitness(rows [][]byte, branch []byte, branchStart int, branchR
}
}

func prepareBranchNode(branch1, branch2, extNode1, extNode2, extListRlpBytes []byte, extValues [][]byte, key, driftedInd byte,
func prepareBranchNode(
branch1, branch2, extNode1, extNode2, extListRlpBytes []byte,
extValues [][]byte, key, driftedInd byte,
isBranchSPlaceholder, isBranchCPlaceholder, isExtension bool) Node {

extensionNode := ExtensionNode{
ListRlpBytes: extListRlpBytes,
}
Expand Down Expand Up @@ -244,7 +250,10 @@ func addBranchAndPlaceholder(proof1, proof2, extNibblesS, extNibblesC [][]byte,
// For stack trie
// if 1 st node of proof2 is a branch node and 1st node of Proof1 is an ext node
need_placeholder_ext := isBranch(proof2[0]) && (!isTxLeaf(proof1[0]) && !isBranch(proof1[0]))

if need_placeholder_ext {
fmt.Println("need_placeholder_ext", isTxLeaf(proof1[0]), isBranch(proof1[0]), proof1[0])
fmt.Println("need_placeholder_ext", isBranch(proof2[0]), proof2[0])
}
isExtension := (len1 == len2+2) || (len2 == len1+2)
if isExtension || need_placeholder_ext {
var numNibbles byte
Expand Down Expand Up @@ -301,6 +310,8 @@ func addBranchAndPlaceholder(proof1, proof2, extNibblesS, extNibblesC [][]byte,
var extNode []byte
if need_placeholder_ext {
extNode = proof1[0]
// FIXME should move to above and need to avoid above [len-3] operation
isExtension = need_placeholder_ext
} else {
if isExtension {
if len1 > len2 {
Expand All @@ -311,9 +322,6 @@ func addBranchAndPlaceholder(proof1, proof2, extNibblesS, extNibblesC [][]byte,
}
}

// FIXME should move to above and need to avoid above [len-3] operation
isExtension = need_placeholder_ext

// Note that isModifiedExtNode happens also when we have a branch instead of shortExtNode
isModifiedExtNode := (!isBranch(longExtNode) && !isShorterProofLastLeaf) || need_placeholder_ext

Expand All @@ -324,7 +332,6 @@ func addBranchAndPlaceholder(proof1, proof2, extNibblesS, extNibblesC [][]byte,
if len1 > len2 {
node = prepareBranchNode(proof1[len1-2], proof1[len1-2], extNode, extNode, extListRlpBytes, extValues,
key[keyIndex+numberOfNibbles], driftedInd, false, true, isExtension)

} else {
node = prepareBranchNode(proof2[len2-2], proof2[len2-2], extNode, extNode, extListRlpBytes, extValues,
key[keyIndex+numberOfNibbles], driftedInd, true, false, isExtension)
Expand Down
17 changes: 17 additions & 0 deletions geth-utils/gethutil/mpt/witness/gen_witness_from_local_blockchain_test.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -922,3 +922,20 @@ func TestExtNodeDeletedExtShortIsBranchFirstLevel(t *testing.T) {

ExtNodeDeleted(key1, key2, key3, "ExtNodeDeletedExtShortIsBranchFirstLevel")
}

func TestSimulateStackTrieUnder128Txs(t *testing.T) {
SkipIfNoGeth(t)
// The trie is empty before we add key1, key2, key3.
key1 := common.HexToHash("0x2345610000000000000000000000000000000000000000000000000000000000")
// After inserting key1, there is only one leaf in the trie.

key2 := common.HexToHash("0x2345630000000000000000000000000000000000000000000000000000000000")
// After inserting key2, we have an extension node E in the trie with the following nibbles: 2 3 4 5 6.
// The branch of the extension node has two leaves - key1 at position 1 and key2 at position 3.

key3 := common.HexToHash("0x2345800000000000000000000000000000000000000000000000000000000000")
// After inserting key3, we have an extension node E1 with nibbles: 2 3 4 5.
// The branch of E1 has two nodes: the branch at position 6 and the leaf at position 8.

ExtNodeInserted(key1, key2, key3, "ExtNodeInsertedExtShortIsBranchSecondLevel")
}
2 changes: 1 addition & 1 deletion geth-utils/gethutil/mpt/witness/gen_witness_transactions_test.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -121,7 +121,7 @@ func transactionsStackTrieInsertionTemplate(t *testing.T, n int) {
}

func TestTransactionInsertion(t *testing.T) {
txs := makeTransactions(4)
txs := makeTransactions(256)
prepareStackTrieWitness("TransactionInsertion", types.Transactions(txs))
}

Expand Down
112 changes: 59 additions & 53 deletions geth-utils/gethutil/mpt/witness/leaf.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -163,7 +163,7 @@ func prepareAccountLeafNode(addr common.Address, addrh []byte, leafS, leafC, nei
driftedRlpBytes := []byte{0}
keyDrifted := make([]byte, valueLen)
if neighbourNode != nil {
keyDrifted, _, driftedRlpBytes, _ = prepareStorageLeafInfo(neighbourNode, false, false)
keyDrifted, _, driftedRlpBytes, _ = prepareStorageLeafInfo(neighbourNode, false, false, false)
}

wrongValue := make([]byte, valueLen)
Expand Down Expand Up @@ -349,12 +349,12 @@ func prepareLeafAndPlaceholderNode(addr common.Address, addrh []byte, proof1, pr
func prepareTxLeafNode(idx uint, leafS, leafC, key, neighborNode []byte, isSPlaceholder, isSModExtension, isCModExtension bool) Node {
var rows [][]byte

keyS, valueS, listRlpBytes1, valueRlpBytes1 := prepareStorageLeafInfo(leafS, false, isSPlaceholder)
keyS, valueS, listRlpBytes1, valueRlpBytes1 := prepareStorageLeafInfo(leafS, false, isSPlaceholder, true)

rows = append(rows, keyS)
rows = append(rows, valueS)

keyC, valueC, listRlpBytes2, valueRlpBytes2 := prepareStorageLeafInfo(leafC, false, false)
keyC, valueC, listRlpBytes2, valueRlpBytes2 := prepareStorageLeafInfo(leafC, false, false, true)

rows = append(rows, keyC)
rows = append(rows, valueC)
Expand All @@ -370,15 +370,10 @@ func prepareTxLeafNode(idx uint, leafS, leafC, key, neighborNode []byte, isSPlac
driftedRlpBytes := []byte{0}
keyDrifted := make([]byte, valueLen)
if neighborNode != nil {
keyDrifted, _, driftedRlpBytes, _ = prepareStorageLeafInfo(neighborNode, false, false)
keyDrifted, _, driftedRlpBytes, _ = prepareStorageLeafInfo(neighborNode, false, false, true)
}
rows = append(rows, keyDrifted)

// var nonExistingStorageRow []byte
// var wrongRlpBytes []byte
// nonExistingStorageRow = prepareEmptyNonExistingStorageRow()
// rows = append(rows, nonExistingStorageRow)

// These rows are only used in the case of a modified extension node.
// These rows are actually set in equipLeafWithModExtensionNode function.
for i := 0; i < modifiedExtensionNodeRowLen; i++ {
Expand Down Expand Up @@ -489,7 +484,7 @@ func prepareStorageLeafPlaceholderNode(storage_key common.Hash, key []byte, keyI
return prepareStorageLeafNode(leaf, leaf, nil, storage_key, key, false, true, true, false, false)
}

func prepareStorageLeafInfo(row []byte, valueIsZero, isPlaceholder bool) ([]byte, []byte, []byte, []byte) {
func prepareStorageLeafInfo(row []byte, valueIsZero, isPlaceholder, isTxLeaf bool) ([]byte, []byte, []byte, []byte) {
var keyRlp []byte
var valueRlp []byte
var keyRlpLen byte
Expand Down Expand Up @@ -520,51 +515,62 @@ func prepareStorageLeafInfo(row []byte, valueIsZero, isPlaceholder bool) ([]byte

keyLen := byte(0)
offset := byte(1)
if len(row) < 32 { // the node doesn't get hashed in this case
if isTxLeaf {
keyRlpLen = 1
keyRlp = make([]uint8, keyRlpLen)
copy(keyRlp, row[:keyRlpLen])

// 192 + 32 = 224
if row[1] < 128 {
// last level: [194,32,1]
// or
// only one nibble in a leaf (as soon as the leaf has two nibbles, row[1] will have 128 + length)
// [194,48,1] - this one contains nibble 0 = 48 - 48
keyLen = byte(1)
copy(key, row[keyRlpLen:keyLen+1])
offset = byte(1)
} else {
// [196,130,32,0,1]
keyLen = row[1] - 128
copy(key, row[keyRlpLen:keyLen+2])
offset = byte(2)
}
} else if row[0] == 248 {
// [248,67,160,59,138,106,70,105,186,37,13,38,205,122,69,158,202,157,33,95,131,7,227,58,235,229,3,121,188,90,54,23,236,52,68,161,160,...
keyRlpLen = 2
keyLen = row[2] - 128
keyRlp = row[:keyRlpLen]
copy(key, row[keyRlpLen:keyLen+3])
offset = byte(3)
// [248 200 129 128 131 4 147 224 98 148 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 130 5 9 184 100 0 0 0 3 3 3 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 ...]
key[0] = row[0]
key[1] = row[1]
keyLen = byte(2)
offset = byte(0)
} else {
keyRlpLen = 1
keyRlp = make([]uint8, keyRlpLen)
copy(keyRlp, row[:keyRlpLen])
if row[1] < 128 {
// last level:
// [227,32,161,160,187,239,170,18,88,1,56,188,38,60,149,117,120,38,223,78,36,235,129,201,170,170,170,170,170,170,170,170,170,170,170,170]
// one nibble:
// [227,48,161,160,187,239,170,18,88,1,56,188,38,60,149,117,120,38,223,78,36,235,129,201,170,170,170,170,170,170,170,170,170,170,170,170]
key[0] = row[0]
key[1] = row[1]
keyLen = byte(2)
offset = byte(0)
if len(row) < 32 { // the node doesn't get hashed in this case
keyRlpLen = 1
keyRlp = make([]uint8, keyRlpLen)
copy(keyRlp, row[:keyRlpLen])

// 192 + 32 = 224
if row[1] < 128 {
// last level: [194,32,1]
// or
// only one nibble in a leaf (as soon as the leaf has two nibbles, row[1] will have 128 + length)
// [194,48,1] - this one contains nibble 0 = 48 - 48
keyLen = byte(1)
copy(key, row[keyRlpLen:keyLen+1])
offset = byte(1)
} else {
// [196,130,32,0,1]
keyLen = row[1] - 128
copy(key, row[keyRlpLen:keyLen+2])
offset = byte(2)
}
} else if row[0] == 248 {
// [248,67,160,59,138,106,70,105,186,37,13,38,205,122,69,158,202,157,33,95,131,7,227,58,235,229,3,121,188,90,54,23,236,52,68,161,160,...
keyRlpLen = 2
keyLen = row[2] - 128
keyRlp = row[:keyRlpLen]
copy(key, row[keyRlpLen:keyLen+3])
offset = byte(3)
} else {
// [226,160,59,138,106,70,105,186,37,13,38[227,32,161,160,187,239,170,18,88,1,56,188,38,60,149,117,120,38,223,78,36,235,129,201,170,170,170,170,170,170,170,170,170,170,170,170]
keyLen = row[1] - 128
copy(key, row[keyRlpLen:keyLen+2])
offset = byte(2)
keyRlpLen = 1
keyRlp = make([]uint8, keyRlpLen)
copy(keyRlp, row[:keyRlpLen])
if row[1] < 128 {
// last level:
// [227,32,161,160,187,239,170,18,88,1,56,188,38,60,149,117,120,38,223,78,36,235,129,201,170,170,170,170,170,170,170,170,170,170,170,170]
// one nibble:
// [227,48,161,160,187,239,170,18,88,1,56,188,38,60,149,117,120,38,223,78,36,235,129,201,170,170,170,170,170,170,170,170,170,170,170,170]
key[0] = row[0]
key[1] = row[1]
keyLen = byte(2)
offset = byte(0)
} else {
// [226,160,59,138,106,70,105,186,37,13,38[227,32,161,160,187,239,170,18,88,1,56,188,38,60,149,117,120,38,223,78,36,235,129,201,170,170,170,170,170,170,170,170,170,170,170,170]
keyLen = row[1] - 128
copy(key, row[keyRlpLen:keyLen+2])
offset = byte(2)
}
}
}
setKeyValue(keyLen, offset)
Expand All @@ -575,12 +581,12 @@ func prepareStorageLeafInfo(row []byte, valueIsZero, isPlaceholder bool) ([]byte
func prepareStorageLeafNode(leafS, leafC, neighbourNode []byte, storage_key common.Hash, key []byte, nonExistingStorageProof, isSPlaceholder, isCPlaceholder, isSModExtension, isCModExtension bool) Node {
var rows [][]byte

keyS, valueS, listRlpBytes1, valueRlpBytes1 := prepareStorageLeafInfo(leafS, false, isSPlaceholder)
keyS, valueS, listRlpBytes1, valueRlpBytes1 := prepareStorageLeafInfo(leafS, false, isSPlaceholder, false)

rows = append(rows, keyS)
rows = append(rows, valueS)

keyC, valueC, listRlpBytes2, valueRlpBytes2 := prepareStorageLeafInfo(leafC, false, isCPlaceholder)
keyC, valueC, listRlpBytes2, valueRlpBytes2 := prepareStorageLeafInfo(leafC, false, isCPlaceholder, false)

fmt.Println("-", key)
fmt.Println("-", keyS, leafS)
Expand All @@ -600,7 +606,7 @@ func prepareStorageLeafNode(leafS, leafC, neighbourNode []byte, storage_key comm
driftedRlpBytes := []byte{0}
keyDrifted := make([]byte, valueLen)
if neighbourNode != nil {
keyDrifted, _, driftedRlpBytes, _ = prepareStorageLeafInfo(neighbourNode, false, false)
keyDrifted, _, driftedRlpBytes, _ = prepareStorageLeafInfo(neighbourNode, false, false, false)
}
rows = append(rows, keyDrifted)

Expand Down
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