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549 commits

Author SHA1 Message Date
Anna Shaleva
bfbd096fed core: introduce mempool notifications 2021-02-02 22:01:32 +03:00
Anna Shaleva
19fa0daaa6 core, network: add Notary module 2021-02-02 22:01:20 +03:00
Evgeniy Stratonikov
9592f3e052 network: implement pool for Extensible payloads 2021-01-28 17:09:06 +03:00
Evgenii Stratonikov
43e4d3af88 oracle: integrate module in core and RPC 
1. Initialization is performed via `Blockchain` methods.
2. Native Oracle contract updates list of oracle nodes
  and in-fly requests in `PostPersist`.
3. RPC uses Oracle module directly.
 2021-01-28 13:00:58 +03:00
Evgeniy Stratonikov
c146540ce8 core: fix native contract verification 2021-01-28 12:35:02 +03:00
Evgeniy Stratonikov
dd1e2cefe4 core,cli: disallow verify methods with non-bool returns 2021-01-27 12:51:47 +03:00
Evgeniy Stratonikov
73f888f02e core: allow to overload contract methods 
Multiple methods with different parameter count can co-exist.
 2021-01-27 12:51:07 +03:00
Roman Khimov
6b9b37f170 native: don't call CreateNativeContractHash() in oracle contract 
Move oracleScript from global context to Oracle itself. We have the hash
already computed by NewContractMD, there is no need to repeat this
calculation.
 2021-01-22 11:28:13 +03:00
Evgeniy Stratonikov
49de8161ef core: implement LoadToken handler 2021-01-22 09:04:37 +03:00
Evgenii Stratonikov
1c0c331e25 core: update System.Contract.Call syscall 
1. Remove `System.Contract.CallEx`.
2. Extend number of parameters.
3. Add return value count to `VM.Context`.
 2021-01-14 18:23:36 +03:00
Evgenii Stratonikov
dbe81f9b80 smartcontract: move flags to a separate package 2021-01-14 17:52:09 +03:00
Roman Khimov
36b5751262
Merge pull request #1665 from nspcc-dev/nefstate 
Store NEF in contract state
 2021-01-14 10:14:38 +03:00
Evgeniy Stratonikov
0b26b46234 state: store NEF instead of script for contract 
NEFs for native contracts are set statically, thus
field values are taken from the reference implementation.
 2021-01-13 15:34:10 +03:00
Evgenii Stratonikov
fb88d4f3a0 mpt: support put in batches 2021-01-13 12:25:27 +03:00
Evgenii Stratonikov
30423f3306 mpt: update MPT after the block processing 2020-12-25 14:40:23 +03:00
Roman Khimov
dee97d8542
Merge pull request #1524 from nspcc-dev/rpc/invoke_verify 
rpc: add `invokecontractverify` RPC-method
 2020-12-21 10:36:54 +03:00
Evgenii Stratonikov
3397f2c9be native: cache contract in Management contract 2020-12-18 13:11:17 +03:00
Evgenii Stratonikov
62da365302 native: allow to modify StoragePrice in the policy contract 2020-12-16 13:55:40 +03:00
Evgenii Stratonikov
4946556830 native: allow to modify ExecFeeFactor in the policy contract 2020-12-16 13:55:40 +03:00
Evgenii Stratonikov
1840c1c80d core: redefine opcode prices 
Prices are defined in as a coefficients to `BaseExecFee` which
is defined by Policy contract (TBD later).
Native method prices are defined without need to multiply.
 2020-12-16 13:55:39 +03:00
Anna Shaleva
da5eb67e85 rpc: implement invokecontractverify RPC method 2020-12-15 15:53:36 +03:00
Roman Khimov
cb5ecaefe7 native: drop OnPersistEnd 
Now that PostPersist is being run for every native contract we can do our
dirty caching tricks right there instead of OnPersistEnd.
 2020-12-14 15:24:15 +03:00
Roman Khimov
938be298f0 core: don't allow calls in verification context 
Follow neo-project/neo#2144. System.Contract.CallNative already has "None"
flag, so tests work fine.
 2020-12-14 15:24:15 +03:00
Roman Khimov
ab12eee346 native: move contract deployment to management contract 
See neo-project/neo#2119.
 2020-12-14 15:23:46 +03:00
Roman Khimov
ad3547783d native: drop Neo.Native.Deploy, move contract init to management contract 
The contract is almost a stub at the moment, though it does deploy other
contracts.
 2020-12-14 13:33:41 +03:00
Anna Shaleva
2290b91b83 core: fix verification call flag 
Previous commit sets AllowCall flag as required for Neo.Native.Call, but
invocation script was loaded with ReadStates flag => native contracts
verification failed.

Other contracts can also make use of AllowCall call flag.
 2020-12-11 17:45:12 +03:00
Anna Shaleva
fadbae8997 core: rename call flags 
Also new States flag is added and ReadOnly flag is adjusted.
 2020-12-11 10:34:01 +03:00
Anna Shaleva
0b5cf78468 network: add notary request payload 2020-12-10 18:17:31 +03:00
Anna Shaleva
501c0c93c6 core: take into account NotaryAssisted attributes during verification 
It's a bug, we have to reserve proper amount of GAS from verification
gas limit for NotaryAssisted attributes.
 2020-12-10 18:17:31 +03:00
Anna Shaleva
6d357c3793 core: return a special error from verifyHashAgainstScript 
It will help us to distinguish proper `false` verification result from
various verification errors.
 2020-12-10 18:17:31 +03:00
Anna Shaleva
2ab0e6c399 core: check stack length before returning false verification result 
We must be sure that stack has no other items before returning `false`
verification result. It is an error in both cases, but by preserving the
order we know exactly that it was correct `false` on stack.
 2020-12-10 18:17:31 +03:00
Roman Khimov
49f6b33eae core: fix contract-based verification script hash 
When using contract-based verification it's important to load contract's hash
along with the script, otherwise it won't be valid.

Simplify things along the way.
 2020-11-27 21:47:08 +03:00
Roman Khimov
882c214646
Merge pull request #1561 from nspcc-dev/removeold 
core: remove old blocks and transactions
 2020-11-25 19:14:32 +03:00
Anna Shaleva
17842dabd6 core: implement native Notary contract 2020-11-25 18:37:29 +03:00
Anna Shaleva
c9acc43023 core: invoke contract verification script with AllowStates flag 
We should call contract's `verify` with AllowStates flag.
 2020-11-25 18:37:29 +03:00
Anna Shaleva
97069a05d5 core: fix locking in storeBlock 2020-11-25 18:37:29 +03:00
Anna Shaleva
52cf328296 core: add NotaryAssisted transaction attribute 2020-11-25 18:37:29 +03:00
Anna Shaleva
fc9f0034c9 core: adjust verifyTxAttributes for HighPriority attributes 
The fact that they have hight priority does not mean that cheks for other
attributes should be skipped.
 2020-11-25 18:37:29 +03:00
Anna Shaleva
8cdf2d3464 core: unify verifyTxAttributes errors 
We already have pretty ErrInvalidAttribute error, so I think that all
other `verifyTxAttributes` errors should be wrappers around ErrInvalidAttr.
 2020-11-25 18:37:29 +03:00
Evgenii Stratonikov
28b4d4e2f8 core: remove old blocks and transactions 
Remove blocks with `height <= current height - MaxTraceableBlocks`
together with transactions.
 2020-11-25 16:38:20 +03:00
Evgenii Stratonikov
54b177cf40 dao: store blocks/txransactions by big-endian hash 
There is no need for additional allocations.
 2020-11-25 14:03:43 +03:00
Anna Shaleva
b00eb51c55 core: add P2PNotary designated role 2020-11-24 18:47:09 +03:00
Evgenii Stratonikov
31eca342eb *: replace all NEP5 occurences to NEP17 2020-11-24 13:08:24 +03:00
Evgenii Stratonikov
b97dfae8d8 native: replace NEP-5 with NEP-17 2020-11-24 13:08:23 +03:00
Evgenii Stratonikov
a5914f89fa core: allow to provide block in GetTestVM() 
Sometimes amount of GAS consumed depends on block height.
 2020-11-24 12:17:29 +03:00
Evgenii Stratonikov
e38e8aa48a rpc: implement getproof RPC 2020-11-20 18:06:22 +03:00
Evgenii Stratonikov
1869d6d460 core: allow to use state root in header 2020-11-20 17:16:32 +03:00
Evgenii Stratonikov
85f927d892 mpt: implement reference counting 
Also postpone MPT initialization until `storeBlock`
because we need to read-and-check or save info about refcounting
depending on starting height.
 2020-11-20 16:50:30 +03:00
Anna Shaleva
083879838c rpc: adjust getrawtransaction and gettransactionheight RPC call 
We should return verbose transaction in case if it is in the mempool
from `getrawtransaction`. We also shouldn't return height from
`gettransactionheight` in case if transaction is in the mempool.
 2020-11-16 13:25:42 +03:00
Anna Shaleva
7ca93e76ac core, rpc: allow to store several AppExecResult for a single hash 
It is required for we have several executions per block.
 2020-11-12 16:24:39 +03:00
Evgenii Stratonikov
54992ad4f3 core: provide account in calculate claimable 
`getunclaimedgas` RPC should return all GAS available to claim.
 2020-11-10 16:08:21 +03:00
Evgenii Stratonikov
af583c14ea native: add GAS rewards for voters 
Close #1348.
 2020-11-10 15:30:30 +03:00
Roman Khimov
bdd073aad7
Merge pull request #1520 from nspcc-dev/tune-some-limits 
Tune some limits
 2020-11-06 15:35:44 +03:00
Roman Khimov
0ee377792e
Merge pull request #1519 from nspcc-dev/designate-role-history 
native: implement designate contract history retention
 2020-11-06 15:35:18 +03:00
Roman Khimov
9e781bff47 native: implement designate contract history retention 
Follow neo-project/neo#2007. Fix getDesignatedByRole price along the way.
 2020-11-06 13:46:40 +03:00
Roman Khimov
b327308df8 core/config: move MaxTraceableBlocks to configuration file 
Follow neo-project/neo#2042, use 2102400 setting for mainnet/testnet and
200000 for private networks.
 2020-11-06 13:41:46 +03:00
Anna Shaleva
15a939b1da rpc: allow to getcontractstate by address, id or name 
close #1423
 2020-11-03 17:23:49 +03:00
Roman Khimov
eaa260474f trigger/core: split System trigger into OnPerist and PostPersist 
Follow neo-project/neo#2022.
 2020-10-29 19:17:07 +03:00
Roman Khimov
044786b995 core: use Application trigger in CalculateClaimable() 
It doesn't need a System one.
 2020-10-29 19:17:07 +03:00
Anna Shaleva
ec63d5c456 core: add conflicts attribute 
Close #1491
 2020-10-29 10:57:31 +03:00
Anna Shaleva
95630b72e8 core: verify transaction attributes before adding it into mempool 
Attributes check should be done before adding transaction to
the pool, otherwise there might be a case when transaction with invalid
attributes is in the pool.
 2020-10-23 11:05:03 +03:00
Anna Shaleva
09b8b8de73 core: reserve attributes range for experimantal purposes 2020-10-23 11:04:59 +03:00
Anna Shaleva
368ff820b3 core: add NotValidBefore transaction attribute 
Close #1490
 2020-10-23 11:02:46 +03:00
Evgenii Stratonikov
aee02ff2e3 core: allow to invoke verify of native contracts 2020-10-14 11:44:27 +03:00
Roman Khimov
a154481860 core: drop stale transactions from the mempool 
They're no longer valid if `ValidUntilBlock == curheight`.
 2020-10-12 14:58:40 +03:00
Roman Khimov
8c2fd91c5c
Merge pull request #1462 from nspcc-dev/rpc/exceptions 
rpc, core: add FaultException to AppExecResult and Invoke* results
 2020-10-08 16:20:38 +03:00
Anna Shaleva
0f71088246 core: add FaultException to AppExecResult 2020-10-08 16:12:19 +03:00
Anna Shaleva
9fe2b04db9 core: add cache to Policy blocked accounts 
Close #1441
 2020-10-08 13:47:21 +03:00
Roman Khimov
8e146d19b3
Merge pull request #1447 from nspcc-dev/core/fix_neo_cache 
core: fix cache for (NEO).nextValidators and (NEO).committee
 2020-10-02 17:09:43 +03:00
Anna Shaleva
eccf639803 core: add InitializeCache method to NEO native contracts 
There might be a case when cached contract values store nil (e.g.
after restoring chain from dump). We should always initialize cached
values irrespective to the (NEO).Initialize method.

This commit fixes a bug introduced in 83e94d3
when 4-nodes privnet is failing after restoring from dump:
```
$ docker logs neo_go_node_one
=> Try to restore blocks before running node
2020-09-30T11:55:49.122Z	INFO	no storage version found! creating genesis block
2020-09-30T11:55:49.124Z	INFO	service hasn't started since it's disabled	{"service": "Pprof"}
2020-09-30T11:55:49.124Z	INFO	service hasn't started since it's disabled	{"service": "Prometheus"}
2020-09-30T11:55:49.124Z	INFO	skipped genesis block	{"hash": "3792eaa22c196399a114666fd491c4b9ac52491d9abb1f633a8036a8ac81e4db"}
2020-09-30T11:55:49.141Z	INFO	shutting down service	{"service": "Pprof", "endpoint": ":30001"}
2020-09-30T11:55:49.141Z	INFO	shutting down service	{"service": "Prometheus", "endpoint": ":40001"}
2020-09-30T11:55:49.141Z	INFO	blockchain persist completed	{"persistedBlocks": 3, "persistedKeys": 146, "headerHeight": 3, "blockHeight": 3, "took": "324.27µs"}
2020-09-30T11:55:49.150Z	INFO	restoring blockchain	{"version": "0.1.0"}
2020-09-30T11:55:49.150Z	INFO	service hasn't started since it's disabled	{"service": "Prometheus"}
2020-09-30T11:55:49.151Z	INFO	service hasn't started since it's disabled	{"service": "Pprof"}
2020-09-30T11:55:49.443Z	INFO	starting rpc-server	{"endpoint": ":30333"}
2020-09-30T11:55:49.443Z	INFO	node started	{"blockHeight": 3, "headerHeight": 3}

    _   ____________        __________
   / | / / ____/ __ \      / ____/ __ \
  /  |/ / __/ / / / /_____/ / __/ / / /
 / /|  / /___/ /_/ /_____/ /_/ / /_/ /
/_/ |_/_____/\____/      \____/\____/

/NEO-GO:/

2020-09-30T11:55:49.444Z	INFO	new peer connected	{"addr": "172.23.0.5:39638", "peerCount": 1}
2020-09-30T11:55:49.444Z	INFO	new peer connected	{"addr": "172.23.0.5:20333", "peerCount": 2}
2020-09-30T11:55:49.444Z	WARN	peer disconnected	{"addr": "172.23.0.5:20333", "reason": "identical node id", "peerCount": 1}
2020-09-30T11:55:49.445Z	WARN	peer disconnected	{"addr": "172.23.0.5:39638", "reason": "identical node id", "peerCount": 0}
2020-09-30T11:55:49.445Z	INFO	new peer connected	{"addr": "172.23.0.3:20335", "peerCount": 1}
2020-09-30T11:55:49.445Z	INFO	new peer connected	{"addr": "172.23.0.2:20334", "peerCount": 2}
2020-09-30T11:55:49.445Z	INFO	started protocol	{"addr": "172.23.0.3:20335", "userAgent": "/NEO-GO:/", "startHeight": 3, "id": 1339919829}
2020-09-30T11:55:49.445Z	INFO	new peer connected	{"addr": "172.23.0.4:20336", "peerCount": 3}
2020-09-30T11:55:49.445Z	INFO	started protocol	{"addr": "172.23.0.4:20336", "userAgent": "/NEO-GO:/", "startHeight": 3, "id": 4036722359}
2020-09-30T11:55:49.445Z	INFO	node reached synchronized state, starting consensus
2020-09-30T11:55:49.445Z	INFO	started protocol	{"addr": "172.23.0.2:20334", "userAgent": "/NEO-GO:/", "startHeight": 3, "id": 1557367037}
panic: runtime error: integer divide by zero

goroutine 132 [running]:
github.com/nspcc-dev/dbft.(*Context).GetPrimaryIndex(...)
	github.com/nspcc-dev/dbft@v0.0.0-20200925163137-8f3b9ab3b720/context.go:83
github.com/nspcc-dev/dbft.(*Context).reset(0xc0000e0780, 0x0)
	github.com/nspcc-dev/dbft@v0.0.0-20200925163137-8f3b9ab3b720/context.go:208 +0x64b
github.com/nspcc-dev/dbft.(*DBFT).InitializeConsensus(0xc0000e0780, 0x964800)
	github.com/nspcc-dev/dbft@v0.0.0-20200925163137-8f3b9ab3b720/dbft.go:87 +0x51
github.com/nspcc-dev/dbft.(*DBFT).Start(0xc0000e0780)
	github.com/nspcc-dev/dbft@v0.0.0-20200925163137-8f3b9ab3b720/dbft.go:81 +0x4b
github.com/nspcc-dev/neo-go/pkg/consensus.(*service).Start(0xc0001a2160)
	github.com/nspcc-dev/neo-go/pkg/consensus/consensus.go:206 +0x56
github.com/nspcc-dev/neo-go/pkg/network.(*Server).tryStartConsensus(0xc0000ec500)
	github.com/nspcc-dev/neo-go/pkg/network/server.go:311 +0xda
github.com/nspcc-dev/neo-go/pkg/network.(*Server).handleMessage(0xc0000ec500, 0x104d800, 0xc000222090, 0xc0000a6f10, 0x0, 0x0)
	github.com/nspcc-dev/neo-go/pkg/network/server.go:781 +0xa7a
github.com/nspcc-dev/neo-go/pkg/network.(*TCPPeer).handleConn(0xc000222090)
	github.com/nspcc-dev/neo-go/pkg/network/tcp_peer.go:162 +0x2e7
created by github.com/nspcc-dev/neo-go/pkg/network.(*TCPTransport).Dial
	github.com/nspcc-dev/neo-go/pkg/network/tcp_transport.go:40 +0x1ac
```
 2020-10-02 17:03:06 +03:00
Roman Khimov
b5d138b150
Merge pull request #1451 from nspcc-dev/native/designative 
native: implement Designate contract
 2020-10-02 16:09:33 +03:00
Evgenii Stratonikov
c468c02ef5 native: implement Designate contract 2020-10-02 11:03:25 +03:00
Roman Khimov
991089593f
Merge pull request #1450 from nspcc-dev/fix/witnessscope 
transaction: rename FeeOnly to None
 2020-10-01 16:46:07 +03:00
Evgenii Stratonikov
fa09b9af7b transaction: rename FeeOnly to None 
Follow missed change from neo-project/neo#1816 .
`None` may be used for any signer. Currently it is used
for sender to only pay fees, or to sign tx attributes.
 2020-10-01 15:28:19 +03:00
Anna Shaleva
e34e367a7b core: take into account size fee during verifyTxWitnesses 
GasLimit for transaction scripts verification should not include fee for
transaction size.
 2020-09-30 21:40:04 +03:00
Anna Shaleva
a2bfd16136 core: take into account gasConsumed during tx witnesses verification 
We should pay attention to the previously consumed gas during tx
witnesses verification.
 2020-09-29 17:43:35 +03:00
Evgenii Stratonikov
e91d13c615 core: implement oracle tx verification 2020-09-25 17:34:11 +03:00
Evgenii Stratonikov
bd1790bddf native: cache oracle nodes 2020-09-25 17:34:11 +03:00
Evgenii Stratonikov
ef7c0dbd78 core: use GetCommitteeAddress to get committee address 2020-09-25 17:02:31 +03:00
Evgenii Stratonikov
c5cdaae87a native: support postPersist method 
It should be called for NEO contract to distribute
committee bounties.
 2020-09-23 14:47:09 +03:00
Evgenii Stratonikov
81a11c629a native: remove getValidators method 
Follow https://github.com/neo-project/neo/pull/1920 .
 2020-09-23 14:42:13 +03:00
Evgenii Stratonikov
83e94d3bbc native: cache committee members 2020-09-23 14:42:13 +03:00
Evgenii Stratonikov
7d90d79ae6 core: update claimable GAS calculation 2020-09-23 14:12:42 +03:00
Roman Khimov
e4b52d3947 core/rpc: add continue flag to iterating functions 
Most of the time we don't need to get all transfers from the DB and
deserialize them.
 2020-09-21 22:23:34 +03:00
Roman Khimov
373c669c6a core/state: reverse the order of ForEachTransfer 
When using limits we're usually concerned about the most recent
transfers. Returning 3 transfers from the middle of the chain isn't very
helpful.
 2020-09-21 22:05:15 +03:00
Anna Shaleva
770c8d774c core, rpc: add GetCommittee method 
Closes #1414
 2020-09-21 15:56:25 +03:00
Anna Shaleva
c6f099294b core: do not marshal block hash in application log 
Closes #1388
 2020-09-21 14:08:15 +03:00
Roman Khimov
1608fbff87
Merge pull request #1378 from nspcc-dev/tests/cli 
Implement tests for CLI
 2020-09-19 17:02:34 +03:00
Evgenii Stratonikov
bff67c921a core: wrap dao in GetTestVM 
MPT must not be shared to the test VM.
Fix DATA RACE between `Collapse()` and RPC calls.
 2020-09-18 12:07:02 +03:00
Roman Khimov
61ad82160b core: remove named return variable from addHeaders() 2020-09-16 17:45:12 +03:00
Roman Khimov
6bffa811d4 core: remove (*block.Block) checks for topBlock 
If it's non-nil, it has *block.Block inside. If it doesn't --- tell everyone
about it with a nice panic message.
 2020-09-16 17:40:27 +03:00
Roman Khimov
33ea179f6e core: remove forward index check from addHeaders() 
It can't ever happen. We're guaranteed to have a consistent chain of headers
(we're verifying them above, if we're not verifying --- it's not our fault)
that starts at HeaderHeight that was actual when we were asking for it
previously. HeaderHeight can only move forward, so if that happened that would
be filtered out by the condition below and the first one can't happen. Though
to be absolutely sure change the second check to only pass "+1" headers (which
is what we want).
 2020-09-16 16:33:42 +03:00
Roman Khimov
7cbb660082 core: rework headerList 
It's a contention point as all accesses to it are serialized and they compete
with persisting logic at the same time.
 2020-09-16 16:30:40 +03:00
Roman Khimov
ce09c82b25 block: remove Verify() 
It's used in two places now:
 * Blockchain.AddBlock()
   This one does transaction duplication check of its own, doing it in
   Verify() is just a waste of time. Merkle tree root hash value check is
   still relevant though
 * Block.DecodeBinary()
   We're decoding blocks for the following purposes:
     - on restore from dump
       The block will be added to the chain via AddBlock() and that will do a
       full check of it (if configured to do so)
     - on retrieving the block from the DB (DAO)
       We trust the DB, if it's gone wild, this check won't really help
     - on receiving the block via P2P
       It's gonna be put into block queue and then end up in AddBlock() which
       will check it
     - on receiving the block via RPC (submitblock)
       It is to be passed into AddBlock()
     - on receiving the block via RPC in a client
       That's the only problematic case probably, but RPC client has to trust
       the server and it can check for the signature if it really
       cares. Or a separate in-client check might be added.

As we can see nothing really requires this verification to be done the way it
is now, AddBlock can just have a Merkle check and DecodeBinary can do fine
without it at all.
 2020-09-16 12:50:13 +03:00
Roman Khimov
2e876b5593 block: remove Base.Verify() 
It's a no-op and there is nothing we can do about it, header contents could
only be checked against chain state, there is nothing to check for internal
consistency.
 2020-09-16 12:50:13 +03:00
Roman Khimov
19c69618c5 transaction: cache tx size, don't serialize it over and over again 2020-09-11 18:55:19 +03:00
Roman Khimov
7310e748e3 core: reuse mempool from AddBlock() for bc.isTxStillRelevant() 
It's already there most of the time and creating another slice is just a waste
of time. Checking for presence with map is also a little faster.
 2020-09-10 15:02:03 +03:00
Roman Khimov
26339c75dc vm/core: drop old key caching system 
Obsoleted by f5f58a7e91.
 2020-09-10 14:43:24 +03:00
Roman Khimov
a2d9b89964 dao: reuse buffers when storing blocks, txes and aers 
Reduce memory allocation pressure.
 2020-09-09 20:46:31 +03:00
Evgenii Stratonikov
2661ebd295 transaction: add HighPriority attribute 
HighPriority attributes specifies that transaction was
signed by a committee.
 2020-08-23 09:39:46 +03:00
Roman Khimov
e5813ae8cd
Merge pull request #1346 from nspcc-dev/string-tryboolean 
Fail converting long strings to boolean
 2020-08-22 17:04:11 +03:00
Evgenii Stratonikov
7e34072519 core: implement (*Blockchain).VerifyWitness 
`ScriptFromWitness` is no longer useful, because we support
contract verification.
 2020-08-22 12:45:20 +03:00
Roman Khimov
a7670303e8 stackitem: change Bool() to TryBool(), prepare for its failures 2020-08-21 20:55:20 +03:00
Roman Khimov
55b2cbb74d core: refactor and improve verification and pooling 
Now we have VerifyTx() and PoolTx() APIs that either verify transaction in
isolation or verify it against the mempool (either the primary one or the one
given) and then add it there. There is no possibility to check against the
mempool, but not add a transaction to it, but I doubt we really need it.

It allows to remove some duplication between old PoolTx and verifyTx where
they both tried to check transaction against mempool (verifying first and then
adding it). It also saves us utility token balance check because it's done by
the mempool anyway and we no longer need to do that explicitly in verifyTx.

It makes AddBlock() and verifyBlock() transaction's checks more correct,
because previously they could miss that even though sender S has enough
balance to pay for A, B or C, he can't pay for all of them.

Caveats:
 * consensus is running concurrently to other processes, so things could
   change while verifyBlock() is iterating over transactions, this will be
   mitigated in subsequent commits

Improves TPS value for single node by at least 11%.

Fixes #667, fixes #668.
 2020-08-20 18:50:18 +03:00
Roman Khimov
e998c102ca mempool: rename NewMemPool into New 
"mempool" is a package name already.
 2020-08-20 18:50:18 +03:00
Roman Khimov
c7032022f8 core: don't search through the whole DAO in isTxStillRelevant 
New transactions are added to the chain with blocks. If there is no
transaction X at height N in DAO, it could only be added with block N+1, so
it has to be present there. Therefore we can replace `dao.HasTransaction()`
check with a search through in-block transactions. HasTransaction() is nasty
in that it may add useless load the DB and this code is being run with a big
Blockchain lock held, so we don't want to be delayed here at all.

Improves single-node TPS by ~2%.
 2020-08-20 18:50:18 +03:00
Roman Khimov
3a379e4f3e core: don't reverify mempooled transactions in AddBlock 
The end effect is almost as if `VerifyTransactions: false` was set in the
config, but without actually compromising the guarantees provided by it.

It almost doubles performance for single-mode benchmarks and makes block
processing smoother (more smaller blocks are being produced).
 2020-08-19 15:16:19 +03:00
Roman Khimov
d0c29f52c9 core: verification script must return exactly one value 
C# node is quite picky as it expects there to be exactly one value returned,
but our testchain actually adds 4 signatures for multisig cases instead of 3
which makes it technically incompatible with C# node.
 2020-08-17 22:02:15 +03:00
Roman Khimov
8e619cc671
Merge pull request #1318 from nspcc-dev/fix/verifytests 
Add tests for `verifyTx` and `verifyHeader`
 2020-08-14 17:24:03 +03:00
Roman Khimov
e7d13e6db2 *: fix misspellings found in Go Report Card 2020-08-14 12:16:24 +03:00
Evgenii Stratonikov
1eb9a4c6c6 core: allow to use verification contracts 
In NEO3 we can't just appcall hash, as verification script has no access
to state. Instead we use `verify` method of an arbitrary contract.
 2020-08-14 09:40:34 +03:00
Evgenii Stratonikov
7f2a931fb6 core: add tests for (*Blockchain).verifyHeader 2020-08-14 09:37:32 +03:00
Evgenii Stratonikov
e8cf4d96ce core: add tests for (*Blockchain).verifyTx 2020-08-14 09:37:30 +03:00
Roman Khimov
ca542f11fe core: drop unused secondsPerBlock() method 2020-08-11 21:37:18 +03:00
Roman Khimov
b1034d8ed6 state: drop Neo 2 Account and everything related 
It's substituted with NEP5Balances now.
 2020-08-11 20:42:02 +03:00
Evgenii Stratonikov
807338f97e core: do not store NEP5 transfer log in memory 
Traversing transfer log instead of accumulating and returning it
is faster and takes less memory.
 2020-08-07 18:21:06 +03:00
Roman Khimov
c3c88a57cd
Merge pull request #1281 from nspcc-dev/drop-go-1.12-and-fix-some-things 
Drop go 1.12 and fix some things
 2020-08-07 13:34:54 +03:00
Roman Khimov
d5a9d80c12 core: refactor out policy check for transaction 
We were checking blocked accounts twice which is obviously excessive. We also
have our accounts sorted, so we can rely on that in CheckPolicy(). It also
doesn't make much sense to check MaxBlockSystemFee in Blockchain code, policy
contract can handle that.
 2020-08-07 12:21:52 +03:00
Roman Khimov
90180c6fb6 native: pass DAO to CheckPolicy(), it doesn't need interop context 
Simplify things a bit.
 2020-08-07 12:21:52 +03:00
Roman Khimov
791c983304 core: drop GetScriptHashesForVerifying 
It no longer depends on blockchain state and there can't ever be an error, in
fact we can always iterate over signers, so copying these hashes doesn't make
much sense at all as well as sorting arrays in verifyTxWitnesses (witnesses
order must match signers order).
 2020-08-07 12:21:52 +03:00
Roman Khimov
c19838ea67 core: use errors.Is in PoolTx 
Just in case.
 2020-08-07 12:21:52 +03:00
Roman Khimov
4c38fae54c core: fix mempool error check in PoolTx 
ErrAlreadyExists should be returned for ErrDup, not ErrConflict.
 2020-08-07 12:21:52 +03:00
Roman Khimov
0e2784cd2c always wrap errors when creating new ones with fmt.Errorf() 
It doesn't really change anything in most of the cases, but it's a useful
habit anyway.

Fix #350.
 2020-08-07 12:21:52 +03:00
Roman Khimov
205f52c563 core: use error wrapping to provide more details 2020-08-07 12:21:52 +03:00
Roman Khimov
5ef08f60ae remove github.com/pkg/errors from dependencies 
It's not needed any more with Go 1.13 as we have wrapping/unwrapping in base
packages. All errors.Wrap calls are replaced with fmt.Errorf, some strings are
improved along the way.
 2020-08-07 12:21:52 +03:00
Evgenii Stratonikov
27169d140f core: implement (*Blockchain).GetStandByCommitee() 2020-08-06 20:39:13 +03:00
Evgenii Stratonikov
3e39f0f211 native: rename Validator to Candidate 2020-08-06 14:26:24 +03:00
Roman Khimov
b7f89b0544 core: restrict verification scripts with CallFlags.None 
Follow neo-project/neo#1776. Looks very suspicious to me as it severely limits
verification scripts, but we have to be compatible at this point.
 2020-08-05 19:17:48 +03:00
Anna Shaleva
90825efa16 core: move transaction's sender to cosigners 
Closes #1184

Ported changes from https://github.com/neo-project/neo/pull/1752
 2020-08-04 17:33:50 +03:00
Roman Khimov
62f5aa8eb4
Merge pull request #1254 from nspcc-dev/native/policy/maxblocksystemfee 
core, consensus: add maxBlockSystemFee to native Policy
 2020-08-04 13:13:06 +03:00
Anna Shaleva
db65ed04d9 consensus: apply policy during verifyBlock 
To follow C# implementation we should also check proposed block on
policy matching.
 2020-08-04 10:59:09 +03:00
Anna Shaleva
4a1c8464f9 core: use maxBlockSize to apply policy to tx set 
We should also take into account maxBlockSize in
(bc *Blockchain).ApplyPolicyToTxSet
 2020-08-04 10:59:09 +03:00
Anna Shaleva
c647f8e4ed core: add maxBlockSystemFee to native Policy 
Closes #1195
 2020-08-04 10:59:00 +03:00
Evgenii Stratonikov
e5d538ed21 core: use raw stack items in application logs 
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-31 16:07:16 +03:00
fyrchik
e4fc655115
Merge pull request #1239 from nspcc-dev/store_nep5_with_id 
core: store contract IDs instead of hashes for NEP5Balances and Transfers
 2020-07-30 12:56:19 +03:00
Roman Khimov
e21c65c59f core: add state height to prometheus metrics 
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-30 12:42:15 +03:00
Evgenii Stratonikov
5ee3ecf381 core: update verified state root height 
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-30 12:42:15 +03:00
Roman Khimov
236438d799 core: do MPT compaction every once in a while 
We need to compact our in-memory MPT from time to time, otherwise it quickly
fills up all available memory. This raises two obvious quesions --- when to do
that and to what level do that.

As for 'when', I think it's quite easy to use our regular persistence interval
as an anchor (and it also frees up some memory), but we can't do that in the
persistence routine itself because of synchronization issues (adding some
synchronization primitives would add some cost that I'd also like to avoid),
so do it indirectly by comparing persisted and current height in `storeBlock`.

Choosing proper level is another problem, but if we're to roughly estimate one
full branch node to use 1K of memory (usually it's way less than that) then we
can easily store 1K of these nodes and that gives us a depth of 10 for our
trie.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-30 12:42:15 +03:00
Roman Khimov
58b7e16e0e core: fix PrevHash calculation for MPTRoot 
This was differing from C# notion of PrevHash. It's not a previous root, but
rather a hash of the previous serialized MPTRoot structure (that is to be
signed by CNs).

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-30 12:42:15 +03:00
Evgenii Stratonikov
0e29382035 core: update MPT during block processing 
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-30 12:42:15 +03:00
Anna Shaleva
0dd1730632 core: store NEP5Transfer asset by ID instead of hash 
To avoid problems with retrieving decimals for migrated contracts.
 2020-07-29 15:15:48 +03:00
Anna Shaleva
b9bdab8ec8 core: store nep5balances using contract id 
Closes #1194
 2020-07-29 15:15:48 +03:00
Anna Shaleva
dbd460d883 core: retrieve contract hash by ID 
We'll need this ability further to retrieve contracts hashes for Nep5Balances.
 2020-07-29 15:14:24 +03:00
Evgenii Stratonikov
51ae12e4fd *: move syscall handling out of VM 
Remove interop-related structures from the `vm` package.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-29 13:41:08 +03:00
Anna Shaleva
70ef733ce7 core, vm: store VMState as byte instead of string 
Part of #1183
 2020-07-29 10:14:08 +03:00
Evgenii Stratonikov
121c9664b4 core: restrict maximum gas allow for verification 
Disallow costly verification methods. We put this limit in policy
contract as it may be a subject to change in future.
In fact this value also overrides gas limit for header verification.
Close #1202.
 2020-07-25 14:33:38 +03:00
Evgenii Stratonikov
3d7fa9de93 *: make Notify interop accept event name 2020-07-20 13:33:32 +03:00
Roman Khimov
38f0432f36 core: remove stale storeBlock comment, fix #365 
After transaction unification and UTXO removal storeBlock became quite simple
and doesn't require any refactoring any more.
 2020-07-16 23:06:17 +03:00
Roman Khimov
dafb9eea4d
Merge pull request #1177 from nspcc-dev/no-free-vm-runs 
No free VM runs
 2020-07-14 08:42:13 +03:00
Roman Khimov
db027ad9c5 vm: zero GAS means no GAS, use fee data to properly limit execution 
We were accepting transactions with zero system fee, but we shouldn't do
that. Also, transaction's verification execution has to be limited by network
fee.
 2020-07-14 08:37:29 +03:00