tests/fuzzers/les: add fuzzer for les server handler (#22282)
* les: refactored server handler * tests/fuzzers/les: add fuzzer for les server handler * tests, les: update les fuzzer tests: update les fuzzer tests/fuzzer/les: release resources tests/fuzzer/les: pre-initialize all resources * les: refactored server handler and fuzzer Co-authored-by: rjl493456442 <garyrong0905@gmail.com>
This commit is contained in:
Felföldi Zsolt
GitHub
parent
8647233a8e
commit
8f03e3b107
@ -65,27 +65,27 @@ func testGetBlockHeaders(t *testing.T, protocol int) {
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// Create a batch of tests for various scenarios
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limit := uint64(MaxHeaderFetch)
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tests := []struct {
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query *getBlockHeadersData // The query to execute for header retrieval
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query *GetBlockHeadersData // The query to execute for header retrieval
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expect []common.Hash // The hashes of the block whose headers are expected
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}{
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// A single random block should be retrievable by hash and number too
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{
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&getBlockHeadersData{Origin: hashOrNumber{Hash: bc.GetBlockByNumber(limit / 2).Hash()}, Amount: 1},
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&GetBlockHeadersData{Origin: hashOrNumber{Hash: bc.GetBlockByNumber(limit / 2).Hash()}, Amount: 1},
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[]common.Hash{bc.GetBlockByNumber(limit / 2).Hash()},
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}, {
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&getBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Amount: 1},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Amount: 1},
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[]common.Hash{bc.GetBlockByNumber(limit / 2).Hash()},
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},
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// Multiple headers should be retrievable in both directions
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{
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&getBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Amount: 3},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Amount: 3},
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[]common.Hash{
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bc.GetBlockByNumber(limit / 2).Hash(),
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bc.GetBlockByNumber(limit/2 + 1).Hash(),
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bc.GetBlockByNumber(limit/2 + 2).Hash(),
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},
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}, {
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&getBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Amount: 3, Reverse: true},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Amount: 3, Reverse: true},
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[]common.Hash{
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bc.GetBlockByNumber(limit / 2).Hash(),
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bc.GetBlockByNumber(limit/2 - 1).Hash(),
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@ -94,14 +94,14 @@ func testGetBlockHeaders(t *testing.T, protocol int) {
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},
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// Multiple headers with skip lists should be retrievable
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{
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&getBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Skip: 3, Amount: 3},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Skip: 3, Amount: 3},
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[]common.Hash{
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bc.GetBlockByNumber(limit / 2).Hash(),
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bc.GetBlockByNumber(limit/2 + 4).Hash(),
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bc.GetBlockByNumber(limit/2 + 8).Hash(),
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},
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}, {
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&getBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Skip: 3, Amount: 3, Reverse: true},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: limit / 2}, Skip: 3, Amount: 3, Reverse: true},
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[]common.Hash{
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bc.GetBlockByNumber(limit / 2).Hash(),
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bc.GetBlockByNumber(limit/2 - 4).Hash(),
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@ -110,26 +110,26 @@ func testGetBlockHeaders(t *testing.T, protocol int) {
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},
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// The chain endpoints should be retrievable
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{
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&getBlockHeadersData{Origin: hashOrNumber{Number: 0}, Amount: 1},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: 0}, Amount: 1},
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[]common.Hash{bc.GetBlockByNumber(0).Hash()},
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}, {
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&getBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64()}, Amount: 1},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64()}, Amount: 1},
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[]common.Hash{bc.CurrentBlock().Hash()},
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},
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// Ensure protocol limits are honored
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//{
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// &getBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() - 1}, Amount: limit + 10, Reverse: true},
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// &GetBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() - 1}, Amount: limit + 10, Reverse: true},
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// []common.Hash{},
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//},
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// Check that requesting more than available is handled gracefully
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{
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&getBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() - 4}, Skip: 3, Amount: 3},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() - 4}, Skip: 3, Amount: 3},
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[]common.Hash{
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bc.GetBlockByNumber(bc.CurrentBlock().NumberU64() - 4).Hash(),
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bc.GetBlockByNumber(bc.CurrentBlock().NumberU64()).Hash(),
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},
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}, {
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&getBlockHeadersData{Origin: hashOrNumber{Number: 4}, Skip: 3, Amount: 3, Reverse: true},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: 4}, Skip: 3, Amount: 3, Reverse: true},
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[]common.Hash{
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bc.GetBlockByNumber(4).Hash(),
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bc.GetBlockByNumber(0).Hash(),
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@ -137,13 +137,13 @@ func testGetBlockHeaders(t *testing.T, protocol int) {
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},
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// Check that requesting more than available is handled gracefully, even if mid skip
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{
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&getBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() - 4}, Skip: 2, Amount: 3},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() - 4}, Skip: 2, Amount: 3},
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[]common.Hash{
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bc.GetBlockByNumber(bc.CurrentBlock().NumberU64() - 4).Hash(),
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bc.GetBlockByNumber(bc.CurrentBlock().NumberU64() - 1).Hash(),
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},
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}, {
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&getBlockHeadersData{Origin: hashOrNumber{Number: 4}, Skip: 2, Amount: 3, Reverse: true},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: 4}, Skip: 2, Amount: 3, Reverse: true},
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[]common.Hash{
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bc.GetBlockByNumber(4).Hash(),
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bc.GetBlockByNumber(1).Hash(),
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@ -151,10 +151,10 @@ func testGetBlockHeaders(t *testing.T, protocol int) {
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},
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// Check that non existing headers aren't returned
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{
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&getBlockHeadersData{Origin: hashOrNumber{Hash: unknown}, Amount: 1},
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&GetBlockHeadersData{Origin: hashOrNumber{Hash: unknown}, Amount: 1},
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[]common.Hash{},
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}, {
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&getBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() + 1}, Amount: 1},
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&GetBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() + 1}, Amount: 1},
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[]common.Hash{},
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},
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}
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@ -619,7 +619,7 @@ func TestStopResumeLes3(t *testing.T) {
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header := server.handler.blockchain.CurrentHeader()
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req := func() {
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reqID++
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sendRequest(server.peer.app, GetBlockHeadersMsg, reqID, &getBlockHeadersData{Origin: hashOrNumber{Hash: header.Hash()}, Amount: 1})
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sendRequest(server.peer.app, GetBlockHeadersMsg, reqID, &GetBlockHeadersData{Origin: hashOrNumber{Hash: header.Hash()}, Amount: 1})
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}
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for i := 1; i <= 5; i++ {
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// send requests while we still have enough buffer and expect a response
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@ -432,14 +432,14 @@ func (p *serverPeer) sendRequest(msgcode, reqID uint64, data interface{}, amount
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// specified header query, based on the hash of an origin block.
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func (p *serverPeer) requestHeadersByHash(reqID uint64, origin common.Hash, amount int, skip int, reverse bool) error {
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p.Log().Debug("Fetching batch of headers", "count", amount, "fromhash", origin, "skip", skip, "reverse", reverse)
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return p.sendRequest(GetBlockHeadersMsg, reqID, &getBlockHeadersData{Origin: hashOrNumber{Hash: origin}, Amount: uint64(amount), Skip: uint64(skip), Reverse: reverse}, amount)
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return p.sendRequest(GetBlockHeadersMsg, reqID, &GetBlockHeadersData{Origin: hashOrNumber{Hash: origin}, Amount: uint64(amount), Skip: uint64(skip), Reverse: reverse}, amount)
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}
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// requestHeadersByNumber fetches a batch of blocks' headers corresponding to the
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// specified header query, based on the number of an origin block.
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func (p *serverPeer) requestHeadersByNumber(reqID, origin uint64, amount int, skip int, reverse bool) error {
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p.Log().Debug("Fetching batch of headers", "count", amount, "fromnum", origin, "skip", skip, "reverse", reverse)
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return p.sendRequest(GetBlockHeadersMsg, reqID, &getBlockHeadersData{Origin: hashOrNumber{Number: origin}, Amount: uint64(amount), Skip: uint64(skip), Reverse: reverse}, amount)
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return p.sendRequest(GetBlockHeadersMsg, reqID, &GetBlockHeadersData{Origin: hashOrNumber{Number: origin}, Amount: uint64(amount), Skip: uint64(skip), Reverse: reverse}, amount)
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}
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// requestBodies fetches a batch of blocks' bodies corresponding to the hashes
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@ -24,6 +24,7 @@ import (
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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vfc "github.com/ethereum/go-ethereum/les/vflux/client"
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"github.com/ethereum/go-ethereum/p2p/enode"
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@ -83,6 +84,62 @@ const (
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ResumeMsg = 0x17
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)
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// GetBlockHeadersData represents a block header query (the request ID is not included)
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type GetBlockHeadersData struct {
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Origin hashOrNumber // Block from which to retrieve headers
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Amount uint64 // Maximum number of headers to retrieve
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Skip uint64 // Blocks to skip between consecutive headers
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Reverse bool // Query direction (false = rising towards latest, true = falling towards genesis)
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}
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// GetBlockHeadersPacket represents a block header request
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type GetBlockHeadersPacket struct {
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ReqID uint64
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Query GetBlockHeadersData
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}
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// GetBlockBodiesPacket represents a block body request
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type GetBlockBodiesPacket struct {
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ReqID uint64
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Hashes []common.Hash
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}
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// GetCodePacket represents a contract code request
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type GetCodePacket struct {
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ReqID uint64
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Reqs []CodeReq
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}
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// GetReceiptsPacket represents a block receipts request
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type GetReceiptsPacket struct {
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ReqID uint64
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Hashes []common.Hash
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}
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// GetProofsPacket represents a proof request
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type GetProofsPacket struct {
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ReqID uint64
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Reqs []ProofReq
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}
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// GetHelperTrieProofsPacket represents a helper trie proof request
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type GetHelperTrieProofsPacket struct {
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ReqID uint64
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Reqs []HelperTrieReq
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}
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// SendTxPacket represents a transaction propagation request
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type SendTxPacket struct {
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ReqID uint64
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Txs []*types.Transaction
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}
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// GetTxStatusPacket represents a transaction status query
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type GetTxStatusPacket struct {
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ReqID uint64
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Hashes []common.Hash
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}
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type requestInfo struct {
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name string
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maxCount uint64
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@ -229,14 +286,6 @@ type blockInfo struct {
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Td *big.Int // Total difficulty of one particular block being announced
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}
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// getBlockHeadersData represents a block header query.
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type getBlockHeadersData struct {
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Origin hashOrNumber // Block from which to retrieve headers
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Amount uint64 // Maximum number of headers to retrieve
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Skip uint64 // Blocks to skip between consecutive headers
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Reverse bool // Query direction (false = rising towards latest, true = falling towards genesis)
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}
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// hashOrNumber is a combined field for specifying an origin block.
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type hashOrNumber struct {
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Hash common.Hash // Block hash from which to retrieve headers (excludes Number)
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@ -18,8 +18,6 @@ package les
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import (
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"crypto/ecdsa"
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"encoding/binary"
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"encoding/json"
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"errors"
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"sync"
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"sync/atomic"
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@ -223,648 +221,109 @@ func (h *serverHandler) handleMsg(p *clientPeer, wg *sync.WaitGroup) error {
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}
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defer msg.Discard()
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var (
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maxCost uint64
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task *servingTask
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)
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p.responseCount++
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responseCount := p.responseCount
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// accept returns an indicator whether the request can be served.
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// If so, deduct the max cost from the flow control buffer.
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accept := func(reqID, reqCnt, maxCnt uint64) bool {
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// Short circuit if the peer is already frozen or the request is invalid.
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inSizeCost := h.server.costTracker.realCost(0, msg.Size, 0)
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if p.isFrozen() || reqCnt == 0 || reqCnt > maxCnt {
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p.fcClient.OneTimeCost(inSizeCost)
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return false
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}
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// Prepaid max cost units before request been serving.
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maxCost = p.fcCosts.getMaxCost(msg.Code, reqCnt)
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accepted, bufShort, priority := p.fcClient.AcceptRequest(reqID, responseCount, maxCost)
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if !accepted {
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p.freeze()
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p.Log().Error("Request came too early", "remaining", common.PrettyDuration(time.Duration(bufShort*1000000/p.fcParams.MinRecharge)))
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p.fcClient.OneTimeCost(inSizeCost)
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return false
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}
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// Create a multi-stage task, estimate the time it takes for the task to
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// execute, and cache it in the request service queue.
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factor := h.server.costTracker.globalFactor()
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if factor < 0.001 {
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factor = 1
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p.Log().Error("Invalid global cost factor", "factor", factor)
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}
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maxTime := uint64(float64(maxCost) / factor)
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task = h.server.servingQueue.newTask(p, maxTime, priority)
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if task.start() {
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return true
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}
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p.fcClient.RequestProcessed(reqID, responseCount, maxCost, inSizeCost)
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return false
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}
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// sendResponse sends back the response and updates the flow control statistic.
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sendResponse := func(reqID, amount uint64, reply *reply, servingTime uint64) {
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p.responseLock.Lock()
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defer p.responseLock.Unlock()
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// Short circuit if the client is already frozen.
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if p.isFrozen() {
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realCost := h.server.costTracker.realCost(servingTime, msg.Size, 0)
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p.fcClient.RequestProcessed(reqID, responseCount, maxCost, realCost)
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return
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}
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// Positive correction buffer value with real cost.
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var replySize uint32
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if reply != nil {
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replySize = reply.size()
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}
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var realCost uint64
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if h.server.costTracker.testing {
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realCost = maxCost // Assign a fake cost for testing purpose
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} else {
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realCost = h.server.costTracker.realCost(servingTime, msg.Size, replySize)
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if realCost > maxCost {
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realCost = maxCost
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}
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}
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bv := p.fcClient.RequestProcessed(reqID, responseCount, maxCost, realCost)
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if amount != 0 {
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// Feed cost tracker request serving statistic.
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h.server.costTracker.updateStats(msg.Code, amount, servingTime, realCost)
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// Reduce priority "balance" for the specific peer.
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p.balance.RequestServed(realCost)
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}
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if reply != nil {
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p.queueSend(func() {
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if err := reply.send(bv); err != nil {
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select {
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case p.errCh <- err:
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default:
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}
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}
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})
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}
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}
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switch msg.Code {
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case GetBlockHeadersMsg:
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p.Log().Trace("Received block header request")
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if metrics.EnabledExpensive {
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miscInHeaderPacketsMeter.Mark(1)
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miscInHeaderTrafficMeter.Mark(int64(msg.Size))
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}
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var req struct {
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ReqID uint64
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Query getBlockHeadersData
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}
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if err := msg.Decode(&req); err != nil {
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clientErrorMeter.Mark(1)
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return errResp(ErrDecode, "%v: %v", msg, err)
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}
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query := req.Query
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if accept(req.ReqID, query.Amount, MaxHeaderFetch) {
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wg.Add(1)
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go func() {
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defer wg.Done()
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hashMode := query.Origin.Hash != (common.Hash{})
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first := true
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maxNonCanonical := uint64(100)
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// Gather headers until the fetch or network limits is reached
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var (
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bytes common.StorageSize
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headers []*types.Header
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unknown bool
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)
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for !unknown && len(headers) < int(query.Amount) && bytes < softResponseLimit {
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if !first && !task.waitOrStop() {
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sendResponse(req.ReqID, 0, nil, task.servingTime)
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return
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}
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// Retrieve the next header satisfying the query
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var origin *types.Header
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if hashMode {
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if first {
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origin = h.blockchain.GetHeaderByHash(query.Origin.Hash)
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if origin != nil {
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query.Origin.Number = origin.Number.Uint64()
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}
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} else {
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origin = h.blockchain.GetHeader(query.Origin.Hash, query.Origin.Number)
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}
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} else {
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origin = h.blockchain.GetHeaderByNumber(query.Origin.Number)
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}
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if origin == nil {
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break
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}
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headers = append(headers, origin)
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bytes += estHeaderRlpSize
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// Advance to the next header of the query
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switch {
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case hashMode && query.Reverse:
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// Hash based traversal towards the genesis block
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ancestor := query.Skip + 1
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if ancestor == 0 {
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unknown = true
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} else {
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query.Origin.Hash, query.Origin.Number = h.blockchain.GetAncestor(query.Origin.Hash, query.Origin.Number, ancestor, &maxNonCanonical)
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unknown = query.Origin.Hash == common.Hash{}
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}
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case hashMode && !query.Reverse:
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// Hash based traversal towards the leaf block
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var (
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current = origin.Number.Uint64()
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next = current + query.Skip + 1
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)
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if next <= current {
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infos, _ := json.MarshalIndent(p.Peer.Info(), "", " ")
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p.Log().Warn("GetBlockHeaders skip overflow attack", "current", current, "skip", query.Skip, "next", next, "attacker", infos)
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unknown = true
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} else {
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if header := h.blockchain.GetHeaderByNumber(next); header != nil {
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nextHash := header.Hash()
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expOldHash, _ := h.blockchain.GetAncestor(nextHash, next, query.Skip+1, &maxNonCanonical)
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if expOldHash == query.Origin.Hash {
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query.Origin.Hash, query.Origin.Number = nextHash, next
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} else {
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unknown = true
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}
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} else {
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unknown = true
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}
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}
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case query.Reverse:
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// Number based traversal towards the genesis block
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if query.Origin.Number >= query.Skip+1 {
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query.Origin.Number -= query.Skip + 1
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} else {
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unknown = true
|
||||
}
|
||||
|
||||
case !query.Reverse:
|
||||
// Number based traversal towards the leaf block
|
||||
query.Origin.Number += query.Skip + 1
|
||||
}
|
||||
first = false
|
||||
}
|
||||
reply := p.replyBlockHeaders(req.ReqID, headers)
|
||||
sendResponse(req.ReqID, query.Amount, reply, task.done())
|
||||
if metrics.EnabledExpensive {
|
||||
miscOutHeaderPacketsMeter.Mark(1)
|
||||
miscOutHeaderTrafficMeter.Mark(int64(reply.size()))
|
||||
miscServingTimeHeaderTimer.Update(time.Duration(task.servingTime))
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
case GetBlockBodiesMsg:
|
||||
p.Log().Trace("Received block bodies request")
|
||||
if metrics.EnabledExpensive {
|
||||
miscInBodyPacketsMeter.Mark(1)
|
||||
miscInBodyTrafficMeter.Mark(int64(msg.Size))
|
||||
}
|
||||
var req struct {
|
||||
ReqID uint64
|
||||
Hashes []common.Hash
|
||||
}
|
||||
if err := msg.Decode(&req); err != nil {
|
||||
clientErrorMeter.Mark(1)
|
||||
return errResp(ErrDecode, "msg %v: %v", msg, err)
|
||||
}
|
||||
var (
|
||||
bytes int
|
||||
bodies []rlp.RawValue
|
||||
)
|
||||
reqCnt := len(req.Hashes)
|
||||
if accept(req.ReqID, uint64(reqCnt), MaxBodyFetch) {
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
for i, hash := range req.Hashes {
|
||||
if i != 0 && !task.waitOrStop() {
|
||||
sendResponse(req.ReqID, 0, nil, task.servingTime)
|
||||
return
|
||||
}
|
||||
if bytes >= softResponseLimit {
|
||||
break
|
||||
}
|
||||
body := h.blockchain.GetBodyRLP(hash)
|
||||
if body == nil {
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
bodies = append(bodies, body)
|
||||
bytes += len(body)
|
||||
}
|
||||
reply := p.replyBlockBodiesRLP(req.ReqID, bodies)
|
||||
sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
|
||||
if metrics.EnabledExpensive {
|
||||
miscOutBodyPacketsMeter.Mark(1)
|
||||
miscOutBodyTrafficMeter.Mark(int64(reply.size()))
|
||||
miscServingTimeBodyTimer.Update(time.Duration(task.servingTime))
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
case GetCodeMsg:
|
||||
p.Log().Trace("Received code request")
|
||||
if metrics.EnabledExpensive {
|
||||
miscInCodePacketsMeter.Mark(1)
|
||||
miscInCodeTrafficMeter.Mark(int64(msg.Size))
|
||||
}
|
||||
var req struct {
|
||||
ReqID uint64
|
||||
Reqs []CodeReq
|
||||
}
|
||||
if err := msg.Decode(&req); err != nil {
|
||||
clientErrorMeter.Mark(1)
|
||||
return errResp(ErrDecode, "msg %v: %v", msg, err)
|
||||
}
|
||||
var (
|
||||
bytes int
|
||||
data [][]byte
|
||||
)
|
||||
reqCnt := len(req.Reqs)
|
||||
if accept(req.ReqID, uint64(reqCnt), MaxCodeFetch) {
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
for i, request := range req.Reqs {
|
||||
if i != 0 && !task.waitOrStop() {
|
||||
sendResponse(req.ReqID, 0, nil, task.servingTime)
|
||||
return
|
||||
}
|
||||
// Look up the root hash belonging to the request
|
||||
header := h.blockchain.GetHeaderByHash(request.BHash)
|
||||
if header == nil {
|
||||
p.Log().Warn("Failed to retrieve associate header for code", "hash", request.BHash)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
// Refuse to search stale state data in the database since looking for
|
||||
// a non-exist key is kind of expensive.
|
||||
local := h.blockchain.CurrentHeader().Number.Uint64()
|
||||
if !h.server.archiveMode && header.Number.Uint64()+core.TriesInMemory <= local {
|
||||
p.Log().Debug("Reject stale code request", "number", header.Number.Uint64(), "head", local)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
triedb := h.blockchain.StateCache().TrieDB()
|
||||
|
||||
account, err := h.getAccount(triedb, header.Root, common.BytesToHash(request.AccKey))
|
||||
if err != nil {
|
||||
p.Log().Warn("Failed to retrieve account for code", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "err", err)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
code, err := h.blockchain.StateCache().ContractCode(common.BytesToHash(request.AccKey), common.BytesToHash(account.CodeHash))
|
||||
if err != nil {
|
||||
p.Log().Warn("Failed to retrieve account code", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "codehash", common.BytesToHash(account.CodeHash), "err", err)
|
||||
continue
|
||||
}
|
||||
// Accumulate the code and abort if enough data was retrieved
|
||||
data = append(data, code)
|
||||
if bytes += len(code); bytes >= softResponseLimit {
|
||||
break
|
||||
}
|
||||
}
|
||||
reply := p.replyCode(req.ReqID, data)
|
||||
sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
|
||||
if metrics.EnabledExpensive {
|
||||
miscOutCodePacketsMeter.Mark(1)
|
||||
miscOutCodeTrafficMeter.Mark(int64(reply.size()))
|
||||
miscServingTimeCodeTimer.Update(time.Duration(task.servingTime))
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
case GetReceiptsMsg:
|
||||
p.Log().Trace("Received receipts request")
|
||||
if metrics.EnabledExpensive {
|
||||
miscInReceiptPacketsMeter.Mark(1)
|
||||
miscInReceiptTrafficMeter.Mark(int64(msg.Size))
|
||||
}
|
||||
var req struct {
|
||||
ReqID uint64
|
||||
Hashes []common.Hash
|
||||
}
|
||||
if err := msg.Decode(&req); err != nil {
|
||||
clientErrorMeter.Mark(1)
|
||||
return errResp(ErrDecode, "msg %v: %v", msg, err)
|
||||
}
|
||||
var (
|
||||
bytes int
|
||||
receipts []rlp.RawValue
|
||||
)
|
||||
reqCnt := len(req.Hashes)
|
||||
if accept(req.ReqID, uint64(reqCnt), MaxReceiptFetch) {
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
for i, hash := range req.Hashes {
|
||||
if i != 0 && !task.waitOrStop() {
|
||||
sendResponse(req.ReqID, 0, nil, task.servingTime)
|
||||
return
|
||||
}
|
||||
if bytes >= softResponseLimit {
|
||||
break
|
||||
}
|
||||
// Retrieve the requested block's receipts, skipping if unknown to us
|
||||
results := h.blockchain.GetReceiptsByHash(hash)
|
||||
if results == nil {
|
||||
if header := h.blockchain.GetHeaderByHash(hash); header == nil || header.ReceiptHash != types.EmptyRootHash {
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
}
|
||||
// If known, encode and queue for response packet
|
||||
if encoded, err := rlp.EncodeToBytes(results); err != nil {
|
||||
log.Error("Failed to encode receipt", "err", err)
|
||||
} else {
|
||||
receipts = append(receipts, encoded)
|
||||
bytes += len(encoded)
|
||||
}
|
||||
}
|
||||
reply := p.replyReceiptsRLP(req.ReqID, receipts)
|
||||
sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
|
||||
if metrics.EnabledExpensive {
|
||||
miscOutReceiptPacketsMeter.Mark(1)
|
||||
miscOutReceiptTrafficMeter.Mark(int64(reply.size()))
|
||||
miscServingTimeReceiptTimer.Update(time.Duration(task.servingTime))
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
case GetProofsV2Msg:
|
||||
p.Log().Trace("Received les/2 proofs request")
|
||||
if metrics.EnabledExpensive {
|
||||
miscInTrieProofPacketsMeter.Mark(1)
|
||||
miscInTrieProofTrafficMeter.Mark(int64(msg.Size))
|
||||
}
|
||||
var req struct {
|
||||
ReqID uint64
|
||||
Reqs []ProofReq
|
||||
}
|
||||
if err := msg.Decode(&req); err != nil {
|
||||
clientErrorMeter.Mark(1)
|
||||
return errResp(ErrDecode, "msg %v: %v", msg, err)
|
||||
}
|
||||
// Gather state data until the fetch or network limits is reached
|
||||
var (
|
||||
lastBHash common.Hash
|
||||
root common.Hash
|
||||
header *types.Header
|
||||
)
|
||||
reqCnt := len(req.Reqs)
|
||||
if accept(req.ReqID, uint64(reqCnt), MaxProofsFetch) {
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
nodes := light.NewNodeSet()
|
||||
|
||||
for i, request := range req.Reqs {
|
||||
if i != 0 && !task.waitOrStop() {
|
||||
sendResponse(req.ReqID, 0, nil, task.servingTime)
|
||||
return
|
||||
}
|
||||
// Look up the root hash belonging to the request
|
||||
if request.BHash != lastBHash {
|
||||
root, lastBHash = common.Hash{}, request.BHash
|
||||
|
||||
if header = h.blockchain.GetHeaderByHash(request.BHash); header == nil {
|
||||
p.Log().Warn("Failed to retrieve header for proof", "hash", request.BHash)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
// Refuse to search stale state data in the database since looking for
|
||||
// a non-exist key is kind of expensive.
|
||||
local := h.blockchain.CurrentHeader().Number.Uint64()
|
||||
if !h.server.archiveMode && header.Number.Uint64()+core.TriesInMemory <= local {
|
||||
p.Log().Debug("Reject stale trie request", "number", header.Number.Uint64(), "head", local)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
root = header.Root
|
||||
}
|
||||
// If a header lookup failed (non existent), ignore subsequent requests for the same header
|
||||
if root == (common.Hash{}) {
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
// Open the account or storage trie for the request
|
||||
statedb := h.blockchain.StateCache()
|
||||
|
||||
var trie state.Trie
|
||||
switch len(request.AccKey) {
|
||||
case 0:
|
||||
// No account key specified, open an account trie
|
||||
trie, err = statedb.OpenTrie(root)
|
||||
if trie == nil || err != nil {
|
||||
p.Log().Warn("Failed to open storage trie for proof", "block", header.Number, "hash", header.Hash(), "root", root, "err", err)
|
||||
continue
|
||||
}
|
||||
default:
|
||||
// Account key specified, open a storage trie
|
||||
account, err := h.getAccount(statedb.TrieDB(), root, common.BytesToHash(request.AccKey))
|
||||
if err != nil {
|
||||
p.Log().Warn("Failed to retrieve account for proof", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "err", err)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
trie, err = statedb.OpenStorageTrie(common.BytesToHash(request.AccKey), account.Root)
|
||||
if trie == nil || err != nil {
|
||||
p.Log().Warn("Failed to open storage trie for proof", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "root", account.Root, "err", err)
|
||||
continue
|
||||
}
|
||||
}
|
||||
// Prove the user's request from the account or stroage trie
|
||||
if err := trie.Prove(request.Key, request.FromLevel, nodes); err != nil {
|
||||
p.Log().Warn("Failed to prove state request", "block", header.Number, "hash", header.Hash(), "err", err)
|
||||
continue
|
||||
}
|
||||
if nodes.DataSize() >= softResponseLimit {
|
||||
break
|
||||
}
|
||||
}
|
||||
reply := p.replyProofsV2(req.ReqID, nodes.NodeList())
|
||||
sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
|
||||
if metrics.EnabledExpensive {
|
||||
miscOutTrieProofPacketsMeter.Mark(1)
|
||||
miscOutTrieProofTrafficMeter.Mark(int64(reply.size()))
|
||||
miscServingTimeTrieProofTimer.Update(time.Duration(task.servingTime))
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
case GetHelperTrieProofsMsg:
|
||||
p.Log().Trace("Received helper trie proof request")
|
||||
if metrics.EnabledExpensive {
|
||||
miscInHelperTriePacketsMeter.Mark(1)
|
||||
miscInHelperTrieTrafficMeter.Mark(int64(msg.Size))
|
||||
}
|
||||
var req struct {
|
||||
ReqID uint64
|
||||
Reqs []HelperTrieReq
|
||||
}
|
||||
if err := msg.Decode(&req); err != nil {
|
||||
clientErrorMeter.Mark(1)
|
||||
return errResp(ErrDecode, "msg %v: %v", msg, err)
|
||||
}
|
||||
// Gather state data until the fetch or network limits is reached
|
||||
var (
|
||||
auxBytes int
|
||||
auxData [][]byte
|
||||
)
|
||||
reqCnt := len(req.Reqs)
|
||||
if accept(req.ReqID, uint64(reqCnt), MaxHelperTrieProofsFetch) {
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
var (
|
||||
lastIdx uint64
|
||||
lastType uint
|
||||
root common.Hash
|
||||
auxTrie *trie.Trie
|
||||
)
|
||||
nodes := light.NewNodeSet()
|
||||
for i, request := range req.Reqs {
|
||||
if i != 0 && !task.waitOrStop() {
|
||||
sendResponse(req.ReqID, 0, nil, task.servingTime)
|
||||
return
|
||||
}
|
||||
if auxTrie == nil || request.Type != lastType || request.TrieIdx != lastIdx {
|
||||
auxTrie, lastType, lastIdx = nil, request.Type, request.TrieIdx
|
||||
|
||||
var prefix string
|
||||
if root, prefix = h.getHelperTrie(request.Type, request.TrieIdx); root != (common.Hash{}) {
|
||||
auxTrie, _ = trie.New(root, trie.NewDatabase(rawdb.NewTable(h.chainDb, prefix)))
|
||||
}
|
||||
}
|
||||
if auxTrie == nil {
|
||||
sendResponse(req.ReqID, 0, nil, task.servingTime)
|
||||
return
|
||||
}
|
||||
// TODO(rjl493456442) short circuit if the proving is failed.
|
||||
// The original client side code has a dirty hack to retrieve
|
||||
// the headers with no valid proof. Keep the compatibility for
|
||||
// legacy les protocol and drop this hack when the les2/3 are
|
||||
// not supported.
|
||||
err := auxTrie.Prove(request.Key, request.FromLevel, nodes)
|
||||
if p.version >= lpv4 && err != nil {
|
||||
sendResponse(req.ReqID, 0, nil, task.servingTime)
|
||||
return
|
||||
}
|
||||
if request.AuxReq == htAuxHeader {
|
||||
data := h.getAuxiliaryHeaders(request)
|
||||
auxData = append(auxData, data)
|
||||
auxBytes += len(data)
|
||||
}
|
||||
if nodes.DataSize()+auxBytes >= softResponseLimit {
|
||||
break
|
||||
}
|
||||
}
|
||||
reply := p.replyHelperTrieProofs(req.ReqID, HelperTrieResps{Proofs: nodes.NodeList(), AuxData: auxData})
|
||||
sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
|
||||
if metrics.EnabledExpensive {
|
||||
miscOutHelperTriePacketsMeter.Mark(1)
|
||||
miscOutHelperTrieTrafficMeter.Mark(int64(reply.size()))
|
||||
miscServingTimeHelperTrieTimer.Update(time.Duration(task.servingTime))
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
case SendTxV2Msg:
|
||||
p.Log().Trace("Received new transactions")
|
||||
if metrics.EnabledExpensive {
|
||||
miscInTxsPacketsMeter.Mark(1)
|
||||
miscInTxsTrafficMeter.Mark(int64(msg.Size))
|
||||
}
|
||||
var req struct {
|
||||
ReqID uint64
|
||||
Txs []*types.Transaction
|
||||
}
|
||||
if err := msg.Decode(&req); err != nil {
|
||||
clientErrorMeter.Mark(1)
|
||||
return errResp(ErrDecode, "msg %v: %v", msg, err)
|
||||
}
|
||||
reqCnt := len(req.Txs)
|
||||
if accept(req.ReqID, uint64(reqCnt), MaxTxSend) {
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
stats := make([]light.TxStatus, len(req.Txs))
|
||||
for i, tx := range req.Txs {
|
||||
if i != 0 && !task.waitOrStop() {
|
||||
return
|
||||
}
|
||||
hash := tx.Hash()
|
||||
stats[i] = h.txStatus(hash)
|
||||
if stats[i].Status == core.TxStatusUnknown {
|
||||
addFn := h.txpool.AddRemotes
|
||||
// Add txs synchronously for testing purpose
|
||||
if h.addTxsSync {
|
||||
addFn = h.txpool.AddRemotesSync
|
||||
}
|
||||
if errs := addFn([]*types.Transaction{tx}); errs[0] != nil {
|
||||
stats[i].Error = errs[0].Error()
|
||||
continue
|
||||
}
|
||||
stats[i] = h.txStatus(hash)
|
||||
}
|
||||
}
|
||||
reply := p.replyTxStatus(req.ReqID, stats)
|
||||
sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
|
||||
if metrics.EnabledExpensive {
|
||||
miscOutTxsPacketsMeter.Mark(1)
|
||||
miscOutTxsTrafficMeter.Mark(int64(reply.size()))
|
||||
miscServingTimeTxTimer.Update(time.Duration(task.servingTime))
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
case GetTxStatusMsg:
|
||||
p.Log().Trace("Received transaction status query request")
|
||||
if metrics.EnabledExpensive {
|
||||
miscInTxStatusPacketsMeter.Mark(1)
|
||||
miscInTxStatusTrafficMeter.Mark(int64(msg.Size))
|
||||
}
|
||||
var req struct {
|
||||
ReqID uint64
|
||||
Hashes []common.Hash
|
||||
}
|
||||
if err := msg.Decode(&req); err != nil {
|
||||
clientErrorMeter.Mark(1)
|
||||
return errResp(ErrDecode, "msg %v: %v", msg, err)
|
||||
}
|
||||
reqCnt := len(req.Hashes)
|
||||
if accept(req.ReqID, uint64(reqCnt), MaxTxStatus) {
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
stats := make([]light.TxStatus, len(req.Hashes))
|
||||
for i, hash := range req.Hashes {
|
||||
if i != 0 && !task.waitOrStop() {
|
||||
sendResponse(req.ReqID, 0, nil, task.servingTime)
|
||||
return
|
||||
}
|
||||
stats[i] = h.txStatus(hash)
|
||||
}
|
||||
reply := p.replyTxStatus(req.ReqID, stats)
|
||||
sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
|
||||
if metrics.EnabledExpensive {
|
||||
miscOutTxStatusPacketsMeter.Mark(1)
|
||||
miscOutTxStatusTrafficMeter.Mark(int64(reply.size()))
|
||||
miscServingTimeTxStatusTimer.Update(time.Duration(task.servingTime))
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
default:
|
||||
req, ok := Les3[msg.Code]
|
||||
if !ok {
|
||||
p.Log().Trace("Received invalid message", "code", msg.Code)
|
||||
clientErrorMeter.Mark(1)
|
||||
return errResp(ErrInvalidMsgCode, "%v", msg.Code)
|
||||
}
|
||||
p.Log().Trace("Received " + req.Name)
|
||||
|
||||
serve, reqID, reqCnt, err := req.Handle(msg)
|
||||
if err != nil {
|
||||
clientErrorMeter.Mark(1)
|
||||
return errResp(ErrDecode, "%v: %v", msg, err)
|
||||
}
|
||||
|
||||
if metrics.EnabledExpensive {
|
||||
req.InPacketsMeter.Mark(1)
|
||||
req.InTrafficMeter.Mark(int64(msg.Size))
|
||||
}
|
||||
|
||||
// Short circuit if the peer is already frozen or the request is invalid.
|
||||
inSizeCost := h.server.costTracker.realCost(0, msg.Size, 0)
|
||||
if p.isFrozen() || reqCnt == 0 || reqCnt > req.MaxCount {
|
||||
p.fcClient.OneTimeCost(inSizeCost)
|
||||
return nil
|
||||
}
|
||||
// Prepaid max cost units before request been serving.
|
||||
maxCost := p.fcCosts.getMaxCost(msg.Code, reqCnt)
|
||||
accepted, bufShort, priority := p.fcClient.AcceptRequest(reqID, responseCount, maxCost)
|
||||
if !accepted {
|
||||
p.freeze()
|
||||
p.Log().Error("Request came too early", "remaining", common.PrettyDuration(time.Duration(bufShort*1000000/p.fcParams.MinRecharge)))
|
||||
p.fcClient.OneTimeCost(inSizeCost)
|
||||
return nil
|
||||
}
|
||||
// Create a multi-stage task, estimate the time it takes for the task to
|
||||
// execute, and cache it in the request service queue.
|
||||
factor := h.server.costTracker.globalFactor()
|
||||
if factor < 0.001 {
|
||||
factor = 1
|
||||
p.Log().Error("Invalid global cost factor", "factor", factor)
|
||||
}
|
||||
maxTime := uint64(float64(maxCost) / factor)
|
||||
task := h.server.servingQueue.newTask(p, maxTime, priority)
|
||||
if task.start() {
|
||||
wg.Add(1)
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
reply := serve(h, p, task.waitOrStop)
|
||||
if reply != nil {
|
||||
task.done()
|
||||
}
|
||||
|
||||
p.responseLock.Lock()
|
||||
defer p.responseLock.Unlock()
|
||||
|
||||
// Short circuit if the client is already frozen.
|
||||
if p.isFrozen() {
|
||||
realCost := h.server.costTracker.realCost(task.servingTime, msg.Size, 0)
|
||||
p.fcClient.RequestProcessed(reqID, responseCount, maxCost, realCost)
|
||||
return
|
||||
}
|
||||
// Positive correction buffer value with real cost.
|
||||
var replySize uint32
|
||||
if reply != nil {
|
||||
replySize = reply.size()
|
||||
}
|
||||
var realCost uint64
|
||||
if h.server.costTracker.testing {
|
||||
realCost = maxCost // Assign a fake cost for testing purpose
|
||||
} else {
|
||||
realCost = h.server.costTracker.realCost(task.servingTime, msg.Size, replySize)
|
||||
if realCost > maxCost {
|
||||
realCost = maxCost
|
||||
}
|
||||
}
|
||||
bv := p.fcClient.RequestProcessed(reqID, responseCount, maxCost, realCost)
|
||||
if reply != nil {
|
||||
// Feed cost tracker request serving statistic.
|
||||
h.server.costTracker.updateStats(msg.Code, reqCnt, task.servingTime, realCost)
|
||||
// Reduce priority "balance" for the specific peer.
|
||||
p.balance.RequestServed(realCost)
|
||||
p.queueSend(func() {
|
||||
if err := reply.send(bv); err != nil {
|
||||
select {
|
||||
case p.errCh <- err:
|
||||
default:
|
||||
}
|
||||
}
|
||||
})
|
||||
if metrics.EnabledExpensive {
|
||||
req.OutPacketsMeter.Mark(1)
|
||||
req.OutTrafficMeter.Mark(int64(replySize))
|
||||
req.ServingTimeMeter.Update(time.Duration(task.servingTime))
|
||||
}
|
||||
}
|
||||
}()
|
||||
} else {
|
||||
p.fcClient.RequestProcessed(reqID, responseCount, maxCost, inSizeCost)
|
||||
}
|
||||
|
||||
// If the client has made too much invalid request(e.g. request a non-existent data),
|
||||
// reject them to prevent SPAM attack.
|
||||
if p.getInvalid() > maxRequestErrors {
|
||||
@ -874,8 +333,28 @@ func (h *serverHandler) handleMsg(p *clientPeer, wg *sync.WaitGroup) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// BlockChain implements serverBackend
|
||||
func (h *serverHandler) BlockChain() *core.BlockChain {
|
||||
return h.blockchain
|
||||
}
|
||||
|
||||
// TxPool implements serverBackend
|
||||
func (h *serverHandler) TxPool() *core.TxPool {
|
||||
return h.txpool
|
||||
}
|
||||
|
||||
// ArchiveMode implements serverBackend
|
||||
func (h *serverHandler) ArchiveMode() bool {
|
||||
return h.server.archiveMode
|
||||
}
|
||||
|
||||
// AddTxsSync implements serverBackend
|
||||
func (h *serverHandler) AddTxsSync() bool {
|
||||
return h.addTxsSync
|
||||
}
|
||||
|
||||
// getAccount retrieves an account from the state based on root.
|
||||
func (h *serverHandler) getAccount(triedb *trie.Database, root, hash common.Hash) (state.Account, error) {
|
||||
func getAccount(triedb *trie.Database, root, hash common.Hash) (state.Account, error) {
|
||||
trie, err := trie.New(root, triedb)
|
||||
if err != nil {
|
||||
return state.Account{}, err
|
||||
@ -892,43 +371,24 @@ func (h *serverHandler) getAccount(triedb *trie.Database, root, hash common.Hash
|
||||
}
|
||||
|
||||
// getHelperTrie returns the post-processed trie root for the given trie ID and section index
|
||||
func (h *serverHandler) getHelperTrie(typ uint, index uint64) (common.Hash, string) {
|
||||
func (h *serverHandler) GetHelperTrie(typ uint, index uint64) *trie.Trie {
|
||||
var (
|
||||
root common.Hash
|
||||
prefix string
|
||||
)
|
||||
switch typ {
|
||||
case htCanonical:
|
||||
sectionHead := rawdb.ReadCanonicalHash(h.chainDb, (index+1)*h.server.iConfig.ChtSize-1)
|
||||
return light.GetChtRoot(h.chainDb, index, sectionHead), light.ChtTablePrefix
|
||||
root, prefix = light.GetChtRoot(h.chainDb, index, sectionHead), light.ChtTablePrefix
|
||||
case htBloomBits:
|
||||
sectionHead := rawdb.ReadCanonicalHash(h.chainDb, (index+1)*h.server.iConfig.BloomTrieSize-1)
|
||||
return light.GetBloomTrieRoot(h.chainDb, index, sectionHead), light.BloomTrieTablePrefix
|
||||
root, prefix = light.GetBloomTrieRoot(h.chainDb, index, sectionHead), light.BloomTrieTablePrefix
|
||||
}
|
||||
return common.Hash{}, ""
|
||||
}
|
||||
|
||||
// getAuxiliaryHeaders returns requested auxiliary headers for the CHT request.
|
||||
func (h *serverHandler) getAuxiliaryHeaders(req HelperTrieReq) []byte {
|
||||
if req.Type == htCanonical && req.AuxReq == htAuxHeader && len(req.Key) == 8 {
|
||||
blockNum := binary.BigEndian.Uint64(req.Key)
|
||||
hash := rawdb.ReadCanonicalHash(h.chainDb, blockNum)
|
||||
return rawdb.ReadHeaderRLP(h.chainDb, hash, blockNum)
|
||||
if root == (common.Hash{}) {
|
||||
return nil
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// txStatus returns the status of a specified transaction.
|
||||
func (h *serverHandler) txStatus(hash common.Hash) light.TxStatus {
|
||||
var stat light.TxStatus
|
||||
// Looking the transaction in txpool first.
|
||||
stat.Status = h.txpool.Status([]common.Hash{hash})[0]
|
||||
|
||||
// If the transaction is unknown to the pool, try looking it up locally.
|
||||
if stat.Status == core.TxStatusUnknown {
|
||||
lookup := h.blockchain.GetTransactionLookup(hash)
|
||||
if lookup != nil {
|
||||
stat.Status = core.TxStatusIncluded
|
||||
stat.Lookup = lookup
|
||||
}
|
||||
}
|
||||
return stat
|
||||
trie, _ := trie.New(root, trie.NewDatabase(rawdb.NewTable(h.chainDb, prefix)))
|
||||
return trie
|
||||
}
|
||||
|
||||
// broadcastLoop broadcasts new block information to all connected light
|
||||
|
||||
569
les/server_requests.go
Normal file
569
les/server_requests.go
Normal file
@ -0,0 +1,569 @@
|
||||
// Copyright 2021 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package les
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"encoding/json"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/core"
|
||||
"github.com/ethereum/go-ethereum/core/state"
|
||||
"github.com/ethereum/go-ethereum/core/types"
|
||||
"github.com/ethereum/go-ethereum/light"
|
||||
"github.com/ethereum/go-ethereum/log"
|
||||
"github.com/ethereum/go-ethereum/metrics"
|
||||
"github.com/ethereum/go-ethereum/rlp"
|
||||
"github.com/ethereum/go-ethereum/trie"
|
||||
)
|
||||
|
||||
// serverBackend defines the backend functions needed for serving LES requests
|
||||
type serverBackend interface {
|
||||
ArchiveMode() bool
|
||||
AddTxsSync() bool
|
||||
BlockChain() *core.BlockChain
|
||||
TxPool() *core.TxPool
|
||||
GetHelperTrie(typ uint, index uint64) *trie.Trie
|
||||
}
|
||||
|
||||
// Decoder is implemented by the messages passed to the handler functions
|
||||
type Decoder interface {
|
||||
Decode(val interface{}) error
|
||||
}
|
||||
|
||||
// RequestType is a static struct that describes an LES request type and references
|
||||
// its handler function.
|
||||
type RequestType struct {
|
||||
Name string
|
||||
MaxCount uint64
|
||||
InPacketsMeter, InTrafficMeter, OutPacketsMeter, OutTrafficMeter metrics.Meter
|
||||
ServingTimeMeter metrics.Timer
|
||||
Handle func(msg Decoder) (serve serveRequestFn, reqID, amount uint64, err error)
|
||||
}
|
||||
|
||||
// serveRequestFn is returned by the request handler functions after decoding the request.
|
||||
// This function does the actual request serving using the supplied backend. waitOrStop is
|
||||
// called between serving individual request items and may block if the serving process
|
||||
// needs to be throttled. If it returns false then the process is terminated.
|
||||
// The reply is not sent by this function yet. The flow control feedback value is supplied
|
||||
// by the protocol handler when calling the send function of the returned reply struct.
|
||||
type serveRequestFn func(backend serverBackend, peer *clientPeer, waitOrStop func() bool) *reply
|
||||
|
||||
// Les3 contains the request types supported by les/2 and les/3
|
||||
var Les3 = map[uint64]RequestType{
|
||||
GetBlockHeadersMsg: RequestType{
|
||||
Name: "block header request",
|
||||
MaxCount: MaxHeaderFetch,
|
||||
InPacketsMeter: miscInHeaderPacketsMeter,
|
||||
InTrafficMeter: miscInHeaderTrafficMeter,
|
||||
OutPacketsMeter: miscOutHeaderPacketsMeter,
|
||||
OutTrafficMeter: miscOutHeaderTrafficMeter,
|
||||
ServingTimeMeter: miscServingTimeHeaderTimer,
|
||||
Handle: handleGetBlockHeaders,
|
||||
},
|
||||
GetBlockBodiesMsg: RequestType{
|
||||
Name: "block bodies request",
|
||||
MaxCount: MaxBodyFetch,
|
||||
InPacketsMeter: miscInBodyPacketsMeter,
|
||||
InTrafficMeter: miscInBodyTrafficMeter,
|
||||
OutPacketsMeter: miscOutBodyPacketsMeter,
|
||||
OutTrafficMeter: miscOutBodyTrafficMeter,
|
||||
ServingTimeMeter: miscServingTimeBodyTimer,
|
||||
Handle: handleGetBlockBodies,
|
||||
},
|
||||
GetCodeMsg: RequestType{
|
||||
Name: "code request",
|
||||
MaxCount: MaxCodeFetch,
|
||||
InPacketsMeter: miscInCodePacketsMeter,
|
||||
InTrafficMeter: miscInCodeTrafficMeter,
|
||||
OutPacketsMeter: miscOutCodePacketsMeter,
|
||||
OutTrafficMeter: miscOutCodeTrafficMeter,
|
||||
ServingTimeMeter: miscServingTimeCodeTimer,
|
||||
Handle: handleGetCode,
|
||||
},
|
||||
GetReceiptsMsg: RequestType{
|
||||
Name: "receipts request",
|
||||
MaxCount: MaxReceiptFetch,
|
||||
InPacketsMeter: miscInReceiptPacketsMeter,
|
||||
InTrafficMeter: miscInReceiptTrafficMeter,
|
||||
OutPacketsMeter: miscOutReceiptPacketsMeter,
|
||||
OutTrafficMeter: miscOutReceiptTrafficMeter,
|
||||
ServingTimeMeter: miscServingTimeReceiptTimer,
|
||||
Handle: handleGetReceipts,
|
||||
},
|
||||
GetProofsV2Msg: RequestType{
|
||||
Name: "les/2 proofs request",
|
||||
MaxCount: MaxProofsFetch,
|
||||
InPacketsMeter: miscInTrieProofPacketsMeter,
|
||||
InTrafficMeter: miscInTrieProofTrafficMeter,
|
||||
OutPacketsMeter: miscOutTrieProofPacketsMeter,
|
||||
OutTrafficMeter: miscOutTrieProofTrafficMeter,
|
||||
ServingTimeMeter: miscServingTimeTrieProofTimer,
|
||||
Handle: handleGetProofs,
|
||||
},
|
||||
GetHelperTrieProofsMsg: RequestType{
|
||||
Name: "helper trie proof request",
|
||||
MaxCount: MaxHelperTrieProofsFetch,
|
||||
InPacketsMeter: miscInHelperTriePacketsMeter,
|
||||
InTrafficMeter: miscInHelperTrieTrafficMeter,
|
||||
OutPacketsMeter: miscOutHelperTriePacketsMeter,
|
||||
OutTrafficMeter: miscOutHelperTrieTrafficMeter,
|
||||
ServingTimeMeter: miscServingTimeHelperTrieTimer,
|
||||
Handle: handleGetHelperTrieProofs,
|
||||
},
|
||||
SendTxV2Msg: RequestType{
|
||||
Name: "new transactions",
|
||||
MaxCount: MaxTxSend,
|
||||
InPacketsMeter: miscInTxsPacketsMeter,
|
||||
InTrafficMeter: miscInTxsTrafficMeter,
|
||||
OutPacketsMeter: miscOutTxsPacketsMeter,
|
||||
OutTrafficMeter: miscOutTxsTrafficMeter,
|
||||
ServingTimeMeter: miscServingTimeTxTimer,
|
||||
Handle: handleSendTx,
|
||||
},
|
||||
GetTxStatusMsg: RequestType{
|
||||
Name: "transaction status query request",
|
||||
MaxCount: MaxTxStatus,
|
||||
InPacketsMeter: miscInTxStatusPacketsMeter,
|
||||
InTrafficMeter: miscInTxStatusTrafficMeter,
|
||||
OutPacketsMeter: miscOutTxStatusPacketsMeter,
|
||||
OutTrafficMeter: miscOutTxStatusTrafficMeter,
|
||||
ServingTimeMeter: miscServingTimeTxStatusTimer,
|
||||
Handle: handleGetTxStatus,
|
||||
},
|
||||
}
|
||||
|
||||
// handleGetBlockHeaders handles a block header request
|
||||
func handleGetBlockHeaders(msg Decoder) (serveRequestFn, uint64, uint64, error) {
|
||||
var r GetBlockHeadersPacket
|
||||
if err := msg.Decode(&r); err != nil {
|
||||
return nil, 0, 0, err
|
||||
}
|
||||
return func(backend serverBackend, p *clientPeer, waitOrStop func() bool) *reply {
|
||||
// Gather headers until the fetch or network limits is reached
|
||||
var (
|
||||
bc = backend.BlockChain()
|
||||
hashMode = r.Query.Origin.Hash != (common.Hash{})
|
||||
first = true
|
||||
maxNonCanonical = uint64(100)
|
||||
bytes common.StorageSize
|
||||
headers []*types.Header
|
||||
unknown bool
|
||||
)
|
||||
for !unknown && len(headers) < int(r.Query.Amount) && bytes < softResponseLimit {
|
||||
if !first && !waitOrStop() {
|
||||
return nil
|
||||
}
|
||||
// Retrieve the next header satisfying the r
|
||||
var origin *types.Header
|
||||
if hashMode {
|
||||
if first {
|
||||
origin = bc.GetHeaderByHash(r.Query.Origin.Hash)
|
||||
if origin != nil {
|
||||
r.Query.Origin.Number = origin.Number.Uint64()
|
||||
}
|
||||
} else {
|
||||
origin = bc.GetHeader(r.Query.Origin.Hash, r.Query.Origin.Number)
|
||||
}
|
||||
} else {
|
||||
origin = bc.GetHeaderByNumber(r.Query.Origin.Number)
|
||||
}
|
||||
if origin == nil {
|
||||
break
|
||||
}
|
||||
headers = append(headers, origin)
|
||||
bytes += estHeaderRlpSize
|
||||
|
||||
// Advance to the next header of the r
|
||||
switch {
|
||||
case hashMode && r.Query.Reverse:
|
||||
// Hash based traversal towards the genesis block
|
||||
ancestor := r.Query.Skip + 1
|
||||
if ancestor == 0 {
|
||||
unknown = true
|
||||
} else {
|
||||
r.Query.Origin.Hash, r.Query.Origin.Number = bc.GetAncestor(r.Query.Origin.Hash, r.Query.Origin.Number, ancestor, &maxNonCanonical)
|
||||
unknown = r.Query.Origin.Hash == common.Hash{}
|
||||
}
|
||||
case hashMode && !r.Query.Reverse:
|
||||
// Hash based traversal towards the leaf block
|
||||
var (
|
||||
current = origin.Number.Uint64()
|
||||
next = current + r.Query.Skip + 1
|
||||
)
|
||||
if next <= current {
|
||||
infos, _ := json.MarshalIndent(p.Peer.Info(), "", " ")
|
||||
p.Log().Warn("GetBlockHeaders skip overflow attack", "current", current, "skip", r.Query.Skip, "next", next, "attacker", infos)
|
||||
unknown = true
|
||||
} else {
|
||||
if header := bc.GetHeaderByNumber(next); header != nil {
|
||||
nextHash := header.Hash()
|
||||
expOldHash, _ := bc.GetAncestor(nextHash, next, r.Query.Skip+1, &maxNonCanonical)
|
||||
if expOldHash == r.Query.Origin.Hash {
|
||||
r.Query.Origin.Hash, r.Query.Origin.Number = nextHash, next
|
||||
} else {
|
||||
unknown = true
|
||||
}
|
||||
} else {
|
||||
unknown = true
|
||||
}
|
||||
}
|
||||
case r.Query.Reverse:
|
||||
// Number based traversal towards the genesis block
|
||||
if r.Query.Origin.Number >= r.Query.Skip+1 {
|
||||
r.Query.Origin.Number -= r.Query.Skip + 1
|
||||
} else {
|
||||
unknown = true
|
||||
}
|
||||
|
||||
case !r.Query.Reverse:
|
||||
// Number based traversal towards the leaf block
|
||||
r.Query.Origin.Number += r.Query.Skip + 1
|
||||
}
|
||||
first = false
|
||||
}
|
||||
return p.replyBlockHeaders(r.ReqID, headers)
|
||||
}, r.ReqID, r.Query.Amount, nil
|
||||
}
|
||||
|
||||
// handleGetBlockBodies handles a block body request
|
||||
func handleGetBlockBodies(msg Decoder) (serveRequestFn, uint64, uint64, error) {
|
||||
var r GetBlockBodiesPacket
|
||||
if err := msg.Decode(&r); err != nil {
|
||||
return nil, 0, 0, err
|
||||
}
|
||||
return func(backend serverBackend, p *clientPeer, waitOrStop func() bool) *reply {
|
||||
var (
|
||||
bytes int
|
||||
bodies []rlp.RawValue
|
||||
)
|
||||
bc := backend.BlockChain()
|
||||
for i, hash := range r.Hashes {
|
||||
if i != 0 && !waitOrStop() {
|
||||
return nil
|
||||
}
|
||||
if bytes >= softResponseLimit {
|
||||
break
|
||||
}
|
||||
body := bc.GetBodyRLP(hash)
|
||||
if body == nil {
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
bodies = append(bodies, body)
|
||||
bytes += len(body)
|
||||
}
|
||||
return p.replyBlockBodiesRLP(r.ReqID, bodies)
|
||||
}, r.ReqID, uint64(len(r.Hashes)), nil
|
||||
}
|
||||
|
||||
// handleGetCode handles a contract code request
|
||||
func handleGetCode(msg Decoder) (serveRequestFn, uint64, uint64, error) {
|
||||
var r GetCodePacket
|
||||
if err := msg.Decode(&r); err != nil {
|
||||
return nil, 0, 0, err
|
||||
}
|
||||
return func(backend serverBackend, p *clientPeer, waitOrStop func() bool) *reply {
|
||||
var (
|
||||
bytes int
|
||||
data [][]byte
|
||||
)
|
||||
bc := backend.BlockChain()
|
||||
for i, request := range r.Reqs {
|
||||
if i != 0 && !waitOrStop() {
|
||||
return nil
|
||||
}
|
||||
// Look up the root hash belonging to the request
|
||||
header := bc.GetHeaderByHash(request.BHash)
|
||||
if header == nil {
|
||||
p.Log().Warn("Failed to retrieve associate header for code", "hash", request.BHash)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
// Refuse to search stale state data in the database since looking for
|
||||
// a non-exist key is kind of expensive.
|
||||
local := bc.CurrentHeader().Number.Uint64()
|
||||
if !backend.ArchiveMode() && header.Number.Uint64()+core.TriesInMemory <= local {
|
||||
p.Log().Debug("Reject stale code request", "number", header.Number.Uint64(), "head", local)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
triedb := bc.StateCache().TrieDB()
|
||||
|
||||
account, err := getAccount(triedb, header.Root, common.BytesToHash(request.AccKey))
|
||||
if err != nil {
|
||||
p.Log().Warn("Failed to retrieve account for code", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "err", err)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
code, err := bc.StateCache().ContractCode(common.BytesToHash(request.AccKey), common.BytesToHash(account.CodeHash))
|
||||
if err != nil {
|
||||
p.Log().Warn("Failed to retrieve account code", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "codehash", common.BytesToHash(account.CodeHash), "err", err)
|
||||
continue
|
||||
}
|
||||
// Accumulate the code and abort if enough data was retrieved
|
||||
data = append(data, code)
|
||||
if bytes += len(code); bytes >= softResponseLimit {
|
||||
break
|
||||
}
|
||||
}
|
||||
return p.replyCode(r.ReqID, data)
|
||||
}, r.ReqID, uint64(len(r.Reqs)), nil
|
||||
}
|
||||
|
||||
// handleGetReceipts handles a block receipts request
|
||||
func handleGetReceipts(msg Decoder) (serveRequestFn, uint64, uint64, error) {
|
||||
var r GetReceiptsPacket
|
||||
if err := msg.Decode(&r); err != nil {
|
||||
return nil, 0, 0, err
|
||||
}
|
||||
return func(backend serverBackend, p *clientPeer, waitOrStop func() bool) *reply {
|
||||
var (
|
||||
bytes int
|
||||
receipts []rlp.RawValue
|
||||
)
|
||||
bc := backend.BlockChain()
|
||||
for i, hash := range r.Hashes {
|
||||
if i != 0 && !waitOrStop() {
|
||||
return nil
|
||||
}
|
||||
if bytes >= softResponseLimit {
|
||||
break
|
||||
}
|
||||
// Retrieve the requested block's receipts, skipping if unknown to us
|
||||
results := bc.GetReceiptsByHash(hash)
|
||||
if results == nil {
|
||||
if header := bc.GetHeaderByHash(hash); header == nil || header.ReceiptHash != types.EmptyRootHash {
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
}
|
||||
// If known, encode and queue for response packet
|
||||
if encoded, err := rlp.EncodeToBytes(results); err != nil {
|
||||
log.Error("Failed to encode receipt", "err", err)
|
||||
} else {
|
||||
receipts = append(receipts, encoded)
|
||||
bytes += len(encoded)
|
||||
}
|
||||
}
|
||||
return p.replyReceiptsRLP(r.ReqID, receipts)
|
||||
}, r.ReqID, uint64(len(r.Hashes)), nil
|
||||
}
|
||||
|
||||
// handleGetProofs handles a proof request
|
||||
func handleGetProofs(msg Decoder) (serveRequestFn, uint64, uint64, error) {
|
||||
var r GetProofsPacket
|
||||
if err := msg.Decode(&r); err != nil {
|
||||
return nil, 0, 0, err
|
||||
}
|
||||
return func(backend serverBackend, p *clientPeer, waitOrStop func() bool) *reply {
|
||||
var (
|
||||
lastBHash common.Hash
|
||||
root common.Hash
|
||||
header *types.Header
|
||||
err error
|
||||
)
|
||||
bc := backend.BlockChain()
|
||||
nodes := light.NewNodeSet()
|
||||
|
||||
for i, request := range r.Reqs {
|
||||
if i != 0 && !waitOrStop() {
|
||||
return nil
|
||||
}
|
||||
// Look up the root hash belonging to the request
|
||||
if request.BHash != lastBHash {
|
||||
root, lastBHash = common.Hash{}, request.BHash
|
||||
|
||||
if header = bc.GetHeaderByHash(request.BHash); header == nil {
|
||||
p.Log().Warn("Failed to retrieve header for proof", "hash", request.BHash)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
// Refuse to search stale state data in the database since looking for
|
||||
// a non-exist key is kind of expensive.
|
||||
local := bc.CurrentHeader().Number.Uint64()
|
||||
if !backend.ArchiveMode() && header.Number.Uint64()+core.TriesInMemory <= local {
|
||||
p.Log().Debug("Reject stale trie request", "number", header.Number.Uint64(), "head", local)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
root = header.Root
|
||||
}
|
||||
// If a header lookup failed (non existent), ignore subsequent requests for the same header
|
||||
if root == (common.Hash{}) {
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
// Open the account or storage trie for the request
|
||||
statedb := bc.StateCache()
|
||||
|
||||
var trie state.Trie
|
||||
switch len(request.AccKey) {
|
||||
case 0:
|
||||
// No account key specified, open an account trie
|
||||
trie, err = statedb.OpenTrie(root)
|
||||
if trie == nil || err != nil {
|
||||
p.Log().Warn("Failed to open storage trie for proof", "block", header.Number, "hash", header.Hash(), "root", root, "err", err)
|
||||
continue
|
||||
}
|
||||
default:
|
||||
// Account key specified, open a storage trie
|
||||
account, err := getAccount(statedb.TrieDB(), root, common.BytesToHash(request.AccKey))
|
||||
if err != nil {
|
||||
p.Log().Warn("Failed to retrieve account for proof", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "err", err)
|
||||
p.bumpInvalid()
|
||||
continue
|
||||
}
|
||||
trie, err = statedb.OpenStorageTrie(common.BytesToHash(request.AccKey), account.Root)
|
||||
if trie == nil || err != nil {
|
||||
p.Log().Warn("Failed to open storage trie for proof", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "root", account.Root, "err", err)
|
||||
continue
|
||||
}
|
||||
}
|
||||
// Prove the user's request from the account or stroage trie
|
||||
if err := trie.Prove(request.Key, request.FromLevel, nodes); err != nil {
|
||||
p.Log().Warn("Failed to prove state request", "block", header.Number, "hash", header.Hash(), "err", err)
|
||||
continue
|
||||
}
|
||||
if nodes.DataSize() >= softResponseLimit {
|
||||
break
|
||||
}
|
||||
}
|
||||
return p.replyProofsV2(r.ReqID, nodes.NodeList())
|
||||
}, r.ReqID, uint64(len(r.Reqs)), nil
|
||||
}
|
||||
|
||||
// handleGetHelperTrieProofs handles a helper trie proof request
|
||||
func handleGetHelperTrieProofs(msg Decoder) (serveRequestFn, uint64, uint64, error) {
|
||||
var r GetHelperTrieProofsPacket
|
||||
if err := msg.Decode(&r); err != nil {
|
||||
return nil, 0, 0, err
|
||||
}
|
||||
return func(backend serverBackend, p *clientPeer, waitOrStop func() bool) *reply {
|
||||
var (
|
||||
lastIdx uint64
|
||||
lastType uint
|
||||
auxTrie *trie.Trie
|
||||
auxBytes int
|
||||
auxData [][]byte
|
||||
)
|
||||
bc := backend.BlockChain()
|
||||
nodes := light.NewNodeSet()
|
||||
for i, request := range r.Reqs {
|
||||
if i != 0 && !waitOrStop() {
|
||||
return nil
|
||||
}
|
||||
if auxTrie == nil || request.Type != lastType || request.TrieIdx != lastIdx {
|
||||
lastType, lastIdx = request.Type, request.TrieIdx
|
||||
auxTrie = backend.GetHelperTrie(request.Type, request.TrieIdx)
|
||||
}
|
||||
if auxTrie == nil {
|
||||
return nil
|
||||
}
|
||||
// TODO(rjl493456442) short circuit if the proving is failed.
|
||||
// The original client side code has a dirty hack to retrieve
|
||||
// the headers with no valid proof. Keep the compatibility for
|
||||
// legacy les protocol and drop this hack when the les2/3 are
|
||||
// not supported.
|
||||
err := auxTrie.Prove(request.Key, request.FromLevel, nodes)
|
||||
if p.version >= lpv4 && err != nil {
|
||||
return nil
|
||||
}
|
||||
if request.Type == htCanonical && request.AuxReq == htAuxHeader && len(request.Key) == 8 {
|
||||
header := bc.GetHeaderByNumber(binary.BigEndian.Uint64(request.Key))
|
||||
data, err := rlp.EncodeToBytes(header)
|
||||
if err != nil {
|
||||
log.Error("Failed to encode header", "err", err)
|
||||
return nil
|
||||
}
|
||||
auxData = append(auxData, data)
|
||||
auxBytes += len(data)
|
||||
}
|
||||
if nodes.DataSize()+auxBytes >= softResponseLimit {
|
||||
break
|
||||
}
|
||||
}
|
||||
return p.replyHelperTrieProofs(r.ReqID, HelperTrieResps{Proofs: nodes.NodeList(), AuxData: auxData})
|
||||
}, r.ReqID, uint64(len(r.Reqs)), nil
|
||||
}
|
||||
|
||||
// handleSendTx handles a transaction propagation request
|
||||
func handleSendTx(msg Decoder) (serveRequestFn, uint64, uint64, error) {
|
||||
var r SendTxPacket
|
||||
if err := msg.Decode(&r); err != nil {
|
||||
return nil, 0, 0, err
|
||||
}
|
||||
amount := uint64(len(r.Txs))
|
||||
return func(backend serverBackend, p *clientPeer, waitOrStop func() bool) *reply {
|
||||
stats := make([]light.TxStatus, len(r.Txs))
|
||||
for i, tx := range r.Txs {
|
||||
if i != 0 && !waitOrStop() {
|
||||
return nil
|
||||
}
|
||||
hash := tx.Hash()
|
||||
stats[i] = txStatus(backend, hash)
|
||||
if stats[i].Status == core.TxStatusUnknown {
|
||||
addFn := backend.TxPool().AddRemotes
|
||||
// Add txs synchronously for testing purpose
|
||||
if backend.AddTxsSync() {
|
||||
addFn = backend.TxPool().AddRemotesSync
|
||||
}
|
||||
if errs := addFn([]*types.Transaction{tx}); errs[0] != nil {
|
||||
stats[i].Error = errs[0].Error()
|
||||
continue
|
||||
}
|
||||
stats[i] = txStatus(backend, hash)
|
||||
}
|
||||
}
|
||||
return p.replyTxStatus(r.ReqID, stats)
|
||||
}, r.ReqID, amount, nil
|
||||
}
|
||||
|
||||
// handleGetTxStatus handles a transaction status query
|
||||
func handleGetTxStatus(msg Decoder) (serveRequestFn, uint64, uint64, error) {
|
||||
var r GetTxStatusPacket
|
||||
if err := msg.Decode(&r); err != nil {
|
||||
return nil, 0, 0, err
|
||||
}
|
||||
return func(backend serverBackend, p *clientPeer, waitOrStop func() bool) *reply {
|
||||
stats := make([]light.TxStatus, len(r.Hashes))
|
||||
for i, hash := range r.Hashes {
|
||||
if i != 0 && !waitOrStop() {
|
||||
return nil
|
||||
}
|
||||
stats[i] = txStatus(backend, hash)
|
||||
}
|
||||
return p.replyTxStatus(r.ReqID, stats)
|
||||
}, r.ReqID, uint64(len(r.Hashes)), nil
|
||||
}
|
||||
|
||||
// txStatus returns the status of a specified transaction.
|
||||
func txStatus(b serverBackend, hash common.Hash) light.TxStatus {
|
||||
var stat light.TxStatus
|
||||
// Looking the transaction in txpool first.
|
||||
stat.Status = b.TxPool().Status([]common.Hash{hash})[0]
|
||||
|
||||
// If the transaction is unknown to the pool, try looking it up locally.
|
||||
if stat.Status == core.TxStatusUnknown {
|
||||
lookup := b.BlockChain().GetTransactionLookup(hash)
|
||||
if lookup != nil {
|
||||
stat.Status = core.TxStatusIncluded
|
||||
stat.Lookup = lookup
|
||||
}
|
||||
}
|
||||
return stat
|
||||
}
|
||||
@ -594,3 +594,7 @@ func newClientServerEnv(t *testing.T, blocks int, protocol int, callback indexer
|
||||
}
|
||||
return s, c, teardown
|
||||
}
|
||||
|
||||
func NewFuzzerPeer(version int) *clientPeer {
|
||||
return newClientPeer(version, 0, p2p.NewPeer(enode.ID{}, "", nil), nil)
|
||||
}
|
||||
|
||||
@ -101,6 +101,7 @@ compile_fuzzer tests/fuzzers/trie Fuzz fuzzTrie
|
||||
compile_fuzzer tests/fuzzers/stacktrie Fuzz fuzzStackTrie
|
||||
compile_fuzzer tests/fuzzers/difficulty Fuzz fuzzDifficulty
|
||||
compile_fuzzer tests/fuzzers/abi Fuzz fuzzAbi
|
||||
compile_fuzzer tests/fuzzers/les Fuzz fuzzLes
|
||||
|
||||
compile_fuzzer tests/fuzzers/bls12381 FuzzG1Add fuzz_g1_add
|
||||
compile_fuzzer tests/fuzzers/bls12381 FuzzG1Mul fuzz_g1_mul
|
||||
|
||||
41
tests/fuzzers/les/debug/main.go
Normal file
41
tests/fuzzers/les/debug/main.go
Normal file
@ -0,0 +1,41 @@
|
||||
// Copyright 2020 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
|
||||
"github.com/ethereum/go-ethereum/tests/fuzzers/les"
|
||||
)
|
||||
|
||||
func main() {
|
||||
if len(os.Args) != 2 {
|
||||
fmt.Fprintf(os.Stderr, "Usage: debug <file>\n")
|
||||
fmt.Fprintf(os.Stderr, "Example\n")
|
||||
fmt.Fprintf(os.Stderr, " $ debug ../crashers/4bbef6857c733a87ecf6fd8b9e7238f65eb9862a\n")
|
||||
os.Exit(1)
|
||||
}
|
||||
crasher := os.Args[1]
|
||||
data, err := ioutil.ReadFile(crasher)
|
||||
if err != nil {
|
||||
fmt.Fprintf(os.Stderr, "error loading crasher %v: %v", crasher, err)
|
||||
os.Exit(1)
|
||||
}
|
||||
les.Fuzz(data)
|
||||
}
|
||||
407
tests/fuzzers/les/les-fuzzer.go
Normal file
407
tests/fuzzers/les/les-fuzzer.go
Normal file
@ -0,0 +1,407 @@
|
||||
// Copyright 2021 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package les
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/binary"
|
||||
"io"
|
||||
"math/big"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/consensus/ethash"
|
||||
"github.com/ethereum/go-ethereum/core"
|
||||
"github.com/ethereum/go-ethereum/core/rawdb"
|
||||
"github.com/ethereum/go-ethereum/core/types"
|
||||
"github.com/ethereum/go-ethereum/core/vm"
|
||||
"github.com/ethereum/go-ethereum/crypto"
|
||||
l "github.com/ethereum/go-ethereum/les"
|
||||
"github.com/ethereum/go-ethereum/params"
|
||||
"github.com/ethereum/go-ethereum/rlp"
|
||||
"github.com/ethereum/go-ethereum/trie"
|
||||
)
|
||||
|
||||
var (
|
||||
bankKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
|
||||
bankAddr = crypto.PubkeyToAddress(bankKey.PublicKey)
|
||||
bankFunds = new(big.Int).Mul(big.NewInt(100), big.NewInt(params.Ether))
|
||||
|
||||
testChainLen = 256
|
||||
testContractCode = common.Hex2Bytes("606060405260cc8060106000396000f360606040526000357c01000000000000000000000000000000000000000000000000000000009004806360cd2685146041578063c16431b914606b57603f565b005b6055600480803590602001909190505060a9565b6040518082815260200191505060405180910390f35b60886004808035906020019091908035906020019091905050608a565b005b80600060005083606481101560025790900160005b50819055505b5050565b6000600060005082606481101560025790900160005b5054905060c7565b91905056")
|
||||
|
||||
chain *core.BlockChain
|
||||
addrHashes []common.Hash
|
||||
txHashes []common.Hash
|
||||
|
||||
chtTrie *trie.Trie
|
||||
bloomTrie *trie.Trie
|
||||
chtKeys [][]byte
|
||||
bloomKeys [][]byte
|
||||
)
|
||||
|
||||
func makechain() (bc *core.BlockChain, addrHashes, txHashes []common.Hash) {
|
||||
db := rawdb.NewMemoryDatabase()
|
||||
gspec := core.Genesis{
|
||||
Config: params.TestChainConfig,
|
||||
Alloc: core.GenesisAlloc{bankAddr: {Balance: bankFunds}},
|
||||
GasLimit: 100000000,
|
||||
}
|
||||
genesis := gspec.MustCommit(db)
|
||||
signer := types.HomesteadSigner{}
|
||||
blocks, _ := core.GenerateChain(gspec.Config, genesis, ethash.NewFaker(), db, testChainLen,
|
||||
func(i int, gen *core.BlockGen) {
|
||||
var (
|
||||
tx *types.Transaction
|
||||
addr common.Address
|
||||
)
|
||||
nonce := uint64(i)
|
||||
if i%4 == 0 {
|
||||
tx, _ = types.SignTx(types.NewContractCreation(nonce, big.NewInt(0), 200000, big.NewInt(0), testContractCode), signer, bankKey)
|
||||
addr = crypto.CreateAddress(bankAddr, nonce)
|
||||
} else {
|
||||
addr = common.BigToAddress(big.NewInt(int64(i)))
|
||||
tx, _ = types.SignTx(types.NewTransaction(nonce, addr, big.NewInt(10000), params.TxGas, big.NewInt(params.GWei), nil), signer, bankKey)
|
||||
}
|
||||
gen.AddTx(tx)
|
||||
addrHashes = append(addrHashes, crypto.Keccak256Hash(addr[:]))
|
||||
txHashes = append(txHashes, tx.Hash())
|
||||
})
|
||||
bc, _ = core.NewBlockChain(db, nil, gspec.Config, ethash.NewFaker(), vm.Config{}, nil, nil)
|
||||
if _, err := bc.InsertChain(blocks); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func makeTries() (chtTrie *trie.Trie, bloomTrie *trie.Trie, chtKeys, bloomKeys [][]byte) {
|
||||
chtTrie, _ = trie.New(common.Hash{}, trie.NewDatabase(rawdb.NewMemoryDatabase()))
|
||||
bloomTrie, _ = trie.New(common.Hash{}, trie.NewDatabase(rawdb.NewMemoryDatabase()))
|
||||
for i := 0; i < testChainLen; i++ {
|
||||
// The element in CHT is <big-endian block number> -> <block hash>
|
||||
key := make([]byte, 8)
|
||||
binary.BigEndian.PutUint64(key, uint64(i+1))
|
||||
chtTrie.Update(key, []byte{0x1, 0xf})
|
||||
chtKeys = append(chtKeys, key)
|
||||
|
||||
// The element in Bloom trie is <2 byte bit index> + <big-endian block number> -> bloom
|
||||
key2 := make([]byte, 10)
|
||||
binary.BigEndian.PutUint64(key2[2:], uint64(i+1))
|
||||
bloomTrie.Update(key2, []byte{0x2, 0xe})
|
||||
bloomKeys = append(bloomKeys, key2)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func init() {
|
||||
chain, addrHashes, txHashes = makechain()
|
||||
chtTrie, bloomTrie, chtKeys, bloomKeys = makeTries()
|
||||
}
|
||||
|
||||
type fuzzer struct {
|
||||
chain *core.BlockChain
|
||||
pool *core.TxPool
|
||||
|
||||
chainLen int
|
||||
addr, txs []common.Hash
|
||||
nonce uint64
|
||||
|
||||
chtKeys [][]byte
|
||||
bloomKeys [][]byte
|
||||
chtTrie *trie.Trie
|
||||
bloomTrie *trie.Trie
|
||||
|
||||
input io.Reader
|
||||
exhausted bool
|
||||
}
|
||||
|
||||
func newFuzzer(input []byte) *fuzzer {
|
||||
return &fuzzer{
|
||||
chain: chain,
|
||||
chainLen: testChainLen,
|
||||
addr: addrHashes,
|
||||
txs: txHashes,
|
||||
chtTrie: chtTrie,
|
||||
bloomTrie: bloomTrie,
|
||||
chtKeys: chtKeys,
|
||||
bloomKeys: bloomKeys,
|
||||
nonce: uint64(len(txHashes)),
|
||||
pool: core.NewTxPool(core.DefaultTxPoolConfig, params.TestChainConfig, chain),
|
||||
input: bytes.NewReader(input),
|
||||
}
|
||||
}
|
||||
|
||||
func (f *fuzzer) read(size int) []byte {
|
||||
out := make([]byte, size)
|
||||
if _, err := f.input.Read(out); err != nil {
|
||||
f.exhausted = true
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
func (f *fuzzer) randomByte() byte {
|
||||
d := f.read(1)
|
||||
return d[0]
|
||||
}
|
||||
|
||||
func (f *fuzzer) randomBool() bool {
|
||||
d := f.read(1)
|
||||
return d[0]&1 == 1
|
||||
}
|
||||
|
||||
func (f *fuzzer) randomInt(max int) int {
|
||||
if max == 0 {
|
||||
return 0
|
||||
}
|
||||
if max <= 256 {
|
||||
return int(f.randomByte()) % max
|
||||
}
|
||||
var a uint16
|
||||
if err := binary.Read(f.input, binary.LittleEndian, &a); err != nil {
|
||||
f.exhausted = true
|
||||
}
|
||||
return int(a % uint16(max))
|
||||
}
|
||||
|
||||
func (f *fuzzer) randomX(max int) uint64 {
|
||||
var a uint16
|
||||
if err := binary.Read(f.input, binary.LittleEndian, &a); err != nil {
|
||||
f.exhausted = true
|
||||
}
|
||||
if a < 0x8000 {
|
||||
return uint64(a%uint16(max+1)) - 1
|
||||
}
|
||||
return (uint64(1)<<(a%64+1) - 1) & (uint64(a) * 343897772345826595)
|
||||
}
|
||||
|
||||
func (f *fuzzer) randomBlockHash() common.Hash {
|
||||
h := f.chain.GetCanonicalHash(uint64(f.randomInt(3 * f.chainLen)))
|
||||
if h != (common.Hash{}) {
|
||||
return h
|
||||
}
|
||||
return common.BytesToHash(f.read(common.HashLength))
|
||||
}
|
||||
|
||||
func (f *fuzzer) randomAddrHash() []byte {
|
||||
i := f.randomInt(3 * len(f.addr))
|
||||
if i < len(f.addr) {
|
||||
return f.addr[i].Bytes()
|
||||
}
|
||||
return f.read(common.HashLength)
|
||||
}
|
||||
|
||||
func (f *fuzzer) randomCHTTrieKey() []byte {
|
||||
i := f.randomInt(3 * len(f.chtKeys))
|
||||
if i < len(f.chtKeys) {
|
||||
return f.chtKeys[i]
|
||||
}
|
||||
return f.read(8)
|
||||
}
|
||||
|
||||
func (f *fuzzer) randomBloomTrieKey() []byte {
|
||||
i := f.randomInt(3 * len(f.bloomKeys))
|
||||
if i < len(f.bloomKeys) {
|
||||
return f.bloomKeys[i]
|
||||
}
|
||||
return f.read(10)
|
||||
}
|
||||
|
||||
func (f *fuzzer) randomTxHash() common.Hash {
|
||||
i := f.randomInt(3 * len(f.txs))
|
||||
if i < len(f.txs) {
|
||||
return f.txs[i]
|
||||
}
|
||||
return common.BytesToHash(f.read(common.HashLength))
|
||||
}
|
||||
|
||||
func (f *fuzzer) BlockChain() *core.BlockChain {
|
||||
return f.chain
|
||||
}
|
||||
|
||||
func (f *fuzzer) TxPool() *core.TxPool {
|
||||
return f.pool
|
||||
}
|
||||
|
||||
func (f *fuzzer) ArchiveMode() bool {
|
||||
return false
|
||||
}
|
||||
|
||||
func (f *fuzzer) AddTxsSync() bool {
|
||||
return false
|
||||
}
|
||||
|
||||
func (f *fuzzer) GetHelperTrie(typ uint, index uint64) *trie.Trie {
|
||||
if typ == 0 {
|
||||
return f.chtTrie
|
||||
} else if typ == 1 {
|
||||
return f.bloomTrie
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type dummyMsg struct {
|
||||
data []byte
|
||||
}
|
||||
|
||||
func (d dummyMsg) Decode(val interface{}) error {
|
||||
return rlp.DecodeBytes(d.data, val)
|
||||
}
|
||||
|
||||
func (f *fuzzer) doFuzz(msgCode uint64, packet interface{}) {
|
||||
version := f.randomInt(3) + 2 // [LES2, LES3, LES4]
|
||||
peer := l.NewFuzzerPeer(version)
|
||||
enc, err := rlp.EncodeToBytes(packet)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
fn, _, _, err := l.Les3[msgCode].Handle(dummyMsg{enc})
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
fn(f, peer, func() bool { return true })
|
||||
|
||||
}
|
||||
|
||||
func Fuzz(input []byte) int {
|
||||
// We expect some large inputs
|
||||
if len(input) < 100 {
|
||||
return -1
|
||||
}
|
||||
f := newFuzzer(input)
|
||||
if f.exhausted {
|
||||
return -1
|
||||
}
|
||||
for !f.exhausted {
|
||||
switch f.randomInt(8) {
|
||||
case 0:
|
||||
req := &l.GetBlockHeadersPacket{
|
||||
Query: l.GetBlockHeadersData{
|
||||
Amount: f.randomX(l.MaxHeaderFetch + 1),
|
||||
Skip: f.randomX(10),
|
||||
Reverse: f.randomBool(),
|
||||
},
|
||||
}
|
||||
if f.randomBool() {
|
||||
req.Query.Origin.Hash = f.randomBlockHash()
|
||||
} else {
|
||||
req.Query.Origin.Number = uint64(f.randomInt(f.chainLen * 2))
|
||||
}
|
||||
f.doFuzz(l.GetBlockHeadersMsg, req)
|
||||
|
||||
case 1:
|
||||
req := &l.GetBlockBodiesPacket{Hashes: make([]common.Hash, f.randomInt(l.MaxBodyFetch+1))}
|
||||
for i := range req.Hashes {
|
||||
req.Hashes[i] = f.randomBlockHash()
|
||||
}
|
||||
f.doFuzz(l.GetBlockBodiesMsg, req)
|
||||
|
||||
case 2:
|
||||
req := &l.GetCodePacket{Reqs: make([]l.CodeReq, f.randomInt(l.MaxCodeFetch+1))}
|
||||
for i := range req.Reqs {
|
||||
req.Reqs[i] = l.CodeReq{
|
||||
BHash: f.randomBlockHash(),
|
||||
AccKey: f.randomAddrHash(),
|
||||
}
|
||||
}
|
||||
f.doFuzz(l.GetCodeMsg, req)
|
||||
|
||||
case 3:
|
||||
req := &l.GetReceiptsPacket{Hashes: make([]common.Hash, f.randomInt(l.MaxReceiptFetch+1))}
|
||||
for i := range req.Hashes {
|
||||
req.Hashes[i] = f.randomBlockHash()
|
||||
}
|
||||
f.doFuzz(l.GetReceiptsMsg, req)
|
||||
|
||||
case 4:
|
||||
req := &l.GetProofsPacket{Reqs: make([]l.ProofReq, f.randomInt(l.MaxProofsFetch+1))}
|
||||
for i := range req.Reqs {
|
||||
if f.randomBool() {
|
||||
req.Reqs[i] = l.ProofReq{
|
||||
BHash: f.randomBlockHash(),
|
||||
AccKey: f.randomAddrHash(),
|
||||
Key: f.randomAddrHash(),
|
||||
FromLevel: uint(f.randomX(3)),
|
||||
}
|
||||
} else {
|
||||
req.Reqs[i] = l.ProofReq{
|
||||
BHash: f.randomBlockHash(),
|
||||
Key: f.randomAddrHash(),
|
||||
FromLevel: uint(f.randomX(3)),
|
||||
}
|
||||
}
|
||||
}
|
||||
f.doFuzz(l.GetProofsV2Msg, req)
|
||||
|
||||
case 5:
|
||||
req := &l.GetHelperTrieProofsPacket{Reqs: make([]l.HelperTrieReq, f.randomInt(l.MaxHelperTrieProofsFetch+1))}
|
||||
for i := range req.Reqs {
|
||||
switch f.randomInt(3) {
|
||||
case 0:
|
||||
// Canonical hash trie
|
||||
req.Reqs[i] = l.HelperTrieReq{
|
||||
Type: 0,
|
||||
TrieIdx: f.randomX(3),
|
||||
Key: f.randomCHTTrieKey(),
|
||||
FromLevel: uint(f.randomX(3)),
|
||||
AuxReq: uint(2),
|
||||
}
|
||||
case 1:
|
||||
// Bloom trie
|
||||
req.Reqs[i] = l.HelperTrieReq{
|
||||
Type: 1,
|
||||
TrieIdx: f.randomX(3),
|
||||
Key: f.randomBloomTrieKey(),
|
||||
FromLevel: uint(f.randomX(3)),
|
||||
AuxReq: 0,
|
||||
}
|
||||
default:
|
||||
// Random trie
|
||||
req.Reqs[i] = l.HelperTrieReq{
|
||||
Type: 2,
|
||||
TrieIdx: f.randomX(3),
|
||||
Key: f.randomCHTTrieKey(),
|
||||
FromLevel: uint(f.randomX(3)),
|
||||
AuxReq: 0,
|
||||
}
|
||||
}
|
||||
}
|
||||
f.doFuzz(l.GetHelperTrieProofsMsg, req)
|
||||
|
||||
case 6:
|
||||
req := &l.SendTxPacket{Txs: make([]*types.Transaction, f.randomInt(l.MaxTxSend+1))}
|
||||
signer := types.HomesteadSigner{}
|
||||
for i := range req.Txs {
|
||||
var nonce uint64
|
||||
if f.randomBool() {
|
||||
nonce = uint64(f.randomByte())
|
||||
} else {
|
||||
nonce = f.nonce
|
||||
f.nonce += 1
|
||||
}
|
||||
req.Txs[i], _ = types.SignTx(types.NewTransaction(nonce, common.Address{}, big.NewInt(10000), params.TxGas, big.NewInt(1000000000*int64(f.randomByte())), nil), signer, bankKey)
|
||||
}
|
||||
f.doFuzz(l.SendTxV2Msg, req)
|
||||
|
||||
case 7:
|
||||
req := &l.GetTxStatusPacket{Hashes: make([]common.Hash, f.randomInt(l.MaxTxStatus+1))}
|
||||
for i := range req.Hashes {
|
||||
req.Hashes[i] = f.randomTxHash()
|
||||
}
|
||||
f.doFuzz(l.GetTxStatusMsg, req)
|
||||
}
|
||||
}
|
||||
return 0
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user