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* Change import go github.com/dexon-foundation/dexonWei-Ning Huang2019-04-091-14/+14
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* all: new p2p node representation (#17643)Felix Lange2018-09-251-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
* all: protect self-mined block during reorg (#17656)gary rong2018-09-201-1/+1
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* all: make indexer configurable (#17188)gary rong2018-08-281-18/+141
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* les: fix crasher in NodeInfo when running as server (#17419)Felix Lange2018-08-171-8/+2
| | | | | | | | | | | | | | | | | * les: fix crasher in NodeInfo when running as server The ProtocolManager computes CHT and Bloom trie roots by asking the indexers for their current head. It tried to get the indexers from LesOdr, but no LesOdr instance is created in server mode. Attempt to fix this by moving the indexers, protocol creation and NodeInfo to a new lesCommons struct which is embedded into both server and client. All this setup code should really be cleaned up, but this is just a hotfix so we have to do that some other time. * les: fix commons protocol maker
* light: CHT and bloom trie indexers working in light mode (#16534)Felföldi Zsolt2018-08-161-3/+3
| | | | | | | This PR enables the indexers to work in light client mode by downloading a part of these tries (the Merkle proofs of the last values of the last known section) in order to be able to add new values and recalculate subsequent hashes. It also adds CHT data to NodeInfo.
* les: pass server pool to protocol manager (#16947)Felföldi Zsolt2018-06-121-1/+1
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* les, light: fix CHT trie retrievals (#16039)Péter Szilágyi2018-02-111-4/+22
| | | | | | | | | | | | * les, light: fix CHT trie retrievals * les, light: minor polishes, test remote CHT retrievals * les, light: deterministic nodeset rlp, bloombits test skeleton * les: add an event emission to the les bloombits test * les: drop dead tester code
* core, trie: intermediate mempool between trie and database (#15857)Péter Szilágyi2018-02-061-1/+1
| | | This commit reduces database I/O by not writing every state trie to disk.
* les: limit LES peer count and improve peer configuration logic (#16010)Felföldi Zsolt2018-02-051-1/+1
| | | | | | * les: limit number of LES connections * eth, cmd/utils: light vs max peer configuration logic
* core, eth, les, light: get rid of redundant methodsPéter Szilágyi2018-01-311-3/+6
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* all: switch gas limits from big.Int to uint64Péter Szilágyi2018-01-031-8/+6
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* accounts, consensus, core, eth: make chain maker consensus agnostic (#15497)gary rong2017-12-221-1/+1
| | | | | | | | | | * accounts, consensus, core, eth: make chain maker consensus agnostic * consensus, core: move CalcDifficulty to Engine interface * consensus: add docs for calcDifficulty function * consensus, core: minor comment fixups
* les, light: LES/2 protocol version (#14970)Felföldi Zsolt2017-10-241-2/+8
| | | | | | | | | | | | | | | | | | This PR implements the new LES protocol version extensions: * new and more efficient Merkle proofs reply format (when replying to a multiple Merkle proofs request, we just send a single set of trie nodes containing all necessary nodes) * BBT (BloomBitsTrie) works similarly to the existing CHT and contains the bloombits search data to speed up log searches * GetTxStatusMsg returns the inclusion position or the pending/queued/unknown state of a transaction referenced by hash * an optional signature of new block data (number/hash/td) can be included in AnnounceMsg to provide an option for "very light clients" (mobile/embedded devices) to skip expensive Ethash check and accept multiple signatures of somewhat trusted servers (still a lot better than trusting a single server completely and retrieving everything through RPC). The new client mode is not implemented in this PR, just the protocol extension.
* core, light: send chain events using event.Feed (#14865)Miya Chen2017-08-181-2/+2
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* les: fix megacheck warnings (#14941)Felföldi Zsolt2017-08-091-41/+1
| | | | | | * les: fix megacheck warnings * les: fixed testGetProofs
* les: code refactoring (#14416)Felföldi Zsolt2017-06-211-40/+12
| | | | | | | | | | | | This commit does various code refactorings: - generalizes and moves the request retrieval/timeout/resend logic out of LesOdr (will be used by a subsequent PR) - reworks the peer management logic so that all services can register with peerSet to get notified about added/dropped peers (also gets rid of the ugly getAllPeers callback in requestDistributor) - moves peerSet, LesOdr, requestDistributor and retrieveManager initialization out of ProtocolManager because I believe they do not really belong there and the whole init process was ugly and ad-hoc
* core, consensus: pluggable consensus engines (#3817)Péter Szilágyi2017-04-051-8/+8
| | | | | This commit adds pluggable consensus engines to go-ethereum. In short, it introduces a generic consensus interface, and refactors the entire codebase to use this interface.
* core: refactor genesis handlingFelix Lange2017-03-231-11/+14
| | | | | | | | | | | | | | | | | | | | | | | | This commit solves several issues concerning the genesis block: * Genesis/ChainConfig loading was handled by cmd/geth code. This left library users in the cold. They could specify a JSON-encoded string and overwrite the config, but didn't get any of the additional checks performed by geth. * Decoding and writing of genesis JSON was conflated in WriteGenesisBlock. This made it a lot harder to embed the genesis block into the forthcoming config file loader. This commit changes things so there is a single Genesis type that represents genesis blocks. All uses of Write*Genesis* are changed to use the new type instead. * If the chain config supplied by the user was incompatible with the current chain (i.e. the chain had already advanced beyond a scheduled fork), it got overwritten. This is not an issue in practice because previous forks have always had the highest total difficulty. It might matter in the future though. The new code reverts the local chain to the point of the fork when upgrading configuration. The change to genesis block data removes compression library dependencies from package core.
* les: implement request distributor, fix blocking issues (#3660)Felföldi Zsolt2017-03-231-2/+6
| | | | | * les: implement request distributor, fix blocking issues * core: moved header validation before chain mutex lock
* all: swap out the C++ ethash to the pure Go one (mining todo)Péter Szilágyi2017-03-091-1/+2
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* params: core, core/vm, miner: 64bit gas instructionsJeffrey Wilcke2017-02-141-3/+5
| | | | | | | | | | | | | | | | | Reworked the EVM gas instructions to use 64bit integers rather than arbitrary size big ints. All gas operations, be it additions, multiplications or divisions, are checked and guarded against 64 bit integer overflows. In additon, most of the protocol paramaters in the params package have been converted to uint64 and are now constants rather than variables. * common/math: added overflow check ops * core: vmenv, env renamed to evm * eth, internal/ethapi, les: unmetered eth_call and cancel methods * core/vm: implemented big.Int pool for evm instructions * core/vm: unexported intPool methods & verification methods * core/vm: added memoryGasCost overflow check and test
* Revert "params: core, core/vm, miner: 64bit gas instructions (#3514)"Jeffrey Wilcke2017-02-131-5/+3
| | | | This reverts commit 8b57c494908637a5c0e74f8f7a13b3218e026757.
* params: core, core/vm, miner: 64bit gas instructions (#3514)Jeffrey Wilcke2017-02-021-3/+5
| | | | | | | | | | | | | | | | Reworked the EVM gas instructions to use 64bit integers rather than arbitrary size big ints. All gas operations, be it additions, multiplications or divisions, are checked and guarded against 64 bit integer overflows. In additon, most of the protocol paramaters in the params package have been converted to uint64 and are now constants rather than variables. * common/math: added overflow check ops * core: vmenv, env renamed to evm * eth, internal/ethapi, les: unmetered eth_call and cancel methods * core/vm: implemented big.Int pool for evm instructions * core/vm: unexported intPool methods & verification methods * core/vm: added memoryGasCost overflow check and test
* cmd/geth, core: add support for recording SHA3 preimages (#3543)Nick Johnson2017-01-171-1/+2
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* Merge pull request #3519 from zsfelfoldi/light-topic5Péter Szilágyi2017-01-091-3/+16
|\ | | | | les: fixed selectPeer deadlock, improved request distribution
| * les: fixed selectPeer deadlock, improved request distributionZsolt Felfoldi2017-01-061-3/+16
| | | | | | | | les/flowcontrol: using proper types for relative and absolute times
* | core/types: remove redundant SignECDSA wrappers, rename to SignTxFelix Lange2017-01-051-7/+7
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* les: improved header fetcher and server statisticsZsolt Felfoldi2016-12-101-0/+11
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* core/types, params: EIP#155Jeffrey Wilcke2016-11-131-7/+9
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* core, core/state, trie: EIP158, reprice & skip empty account writeJeffrey Wilcke2016-11-131-2/+2
| | | | | | | | | | | | | | | This commit implements EIP158 part 1, 2, 3 & 4 1. If an account is empty it's no longer written to the trie. An empty account is defined as (balance=0, nonce=0, storage=0, code=0). 2. Delete an empty account if it's touched 3. An empty account is redefined as either non-existent or empty. 4. Zero value calls and zero value suicides no longer consume the 25k reation costs. params: moved core/config to params Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>
* all: update license informationFelix Lange2016-11-091-0/+16
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* p2p/discv5: added new topic discovery packageZsolt Felfoldi2016-11-091-1/+1
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* les: light client protocol and APIZsolt Felfoldi2016-11-091-0/+318