Commit Graph

21 Commits

Author SHA1 Message Date
Felföldi Zsolt ca376ead88 les, light: LES/2 protocol version (#14970)
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.
2017-10-24 15:19:09 +02:00
Miya Chen bf1e263128 core, light: send chain events using event.Feed (#14865) 2017-08-18 12:58:36 +02:00
Felföldi Zsolt fff6e03a79 les: fix megacheck warnings (#14941)
* les: fix megacheck warnings

* les: fixed testGetProofs
2017-08-08 19:31:08 +03:00
Felföldi Zsolt a5d08c893d les: code refactoring (#14416)
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
2017-06-21 12:27:38 +02:00
Péter Szilágyi 09777952ee core, consensus: pluggable consensus engines (#3817)
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.
2017-04-05 00:16:29 +02:00
Felix Lange 37dd9086ec core: refactor genesis handling
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.
2017-03-23 15:58:43 +01:00
Felföldi Zsolt 525116dbff les: implement request distributor, fix blocking issues (#3660)
* les: implement request distributor, fix blocking issues
* core: moved header validation before chain mutex lock
2017-03-22 20:44:22 +01:00
Péter Szilágyi 567d41d936 all: swap out the C++ ethash to the pure Go one (mining todo) 2017-03-09 15:50:14 +01:00
Jeffrey Wilcke c12f4df910 params: core, core/vm, miner: 64bit gas instructions
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
2017-02-13 21:44:25 +01:00
Jeffrey Wilcke 57f4e90257 Revert "params: core, core/vm, miner: 64bit gas instructions (#3514)"
This reverts commit 8b57c49490.
2017-02-13 15:15:12 +01:00
Jeffrey Wilcke 8b57c49490 params: core, core/vm, miner: 64bit gas instructions (#3514)
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
2017-02-02 15:25:42 +01:00
Nick Johnson 17d92233d9 cmd/geth, core: add support for recording SHA3 preimages (#3543) 2017-01-17 12:19:50 +01:00
Péter Szilágyi 681b51aac4 Merge pull request #3519 from zsfelfoldi/light-topic5
les: fixed selectPeer deadlock, improved request distribution
2017-01-09 16:58:23 +02:00
Zsolt Felfoldi 93f9c023cc les: fixed selectPeer deadlock, improved request distribution
les/flowcontrol: using proper types for relative and absolute times
2017-01-06 04:34:31 +01:00
Felix Lange e171bf74f8 core/types: remove redundant SignECDSA wrappers, rename to SignTx 2017-01-05 12:59:17 +01:00
Zsolt Felfoldi af8a742d00 les: improved header fetcher and server statistics 2016-12-10 09:53:08 +01:00
Jeffrey Wilcke 4dca5d4db7 core/types, params: EIP#155 2016-11-13 14:55:30 +01:00
Jeffrey Wilcke 445feaeef5 core, core/state, trie: EIP158, reprice & skip empty account write
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>
2016-11-13 10:44:04 +01:00
Felix Lange b8bd9a71c8 all: update license information 2016-11-09 02:51:34 +01:00
Zsolt Felfoldi 49da42983a p2p/discv5: added new topic discovery package 2016-11-09 02:12:53 +01:00
Zsolt Felfoldi 9f8d192991 les: light client protocol and API 2016-11-09 02:12:53 +01:00