Commit graph

265 commits

Author SHA1 Message Date
Evgenii Stratonikov
4782a94200 native: do not rewrite NextValidators in (*NEO).OnPersist()
There is no need in writing the same value again and again.
Closes #1337.
2020-08-24 16:45:09 +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
a7670303e8 stackitem: change Bool() to TryBool(), prepare for its failures 2020-08-21 20:55:20 +03:00
Anna Shaleva
591f639ad6 core: fix getOnPersistWrapper for native contracts
According to manifest, OnPersist.ReturnType is void, so we shouldn't
return anything from it. It's not so important, as we drop this value at
the end of OnPersist invocation.
2020-08-18 09:52:46 +03:00
Roman Khimov
e7d13e6db2 *: fix misspellings found in Go Report Card 2020-08-14 12:16:24 +03:00
Roman Khimov
08fd6180b2 native: drop validators count structure
It's not used since #1252.
2020-08-11 20:19:55 +03:00
Roman Khimov
c16040aecc native: sort GetValidators result
As it's returned sorted now. Fixes state change mismatch for
NextValidators. It also partially reverts
2f8e7e4d33 and significantly changes the test
chain as the fees are no longer being sent to the same account.
2020-08-10 19:49:09 +03:00
Roman Khimov
dba248236c smartcontract: add CreateDefaultMultiSigRedeemScript
And use it where appropriate. Some of our code was just plain wrong (like the
one in GAS contract) and unification is always useful here.
2020-08-10 18:58:11 +03:00
Roman Khimov
fb97ea9458 native: don't register standby validators on initialization
C# doesn't do that since neo-project/neo#1762.
2020-08-10 17:51:46 +03:00
Roman Khimov
f287681fa7 core/native: fix VotersCount zero value encoding
Empty byte array is enough to be bigint value of zero. Fixes state differences
with C# node.
2020-08-10 17:07:14 +03:00
Evgenii Stratonikov
bf01599430 vm: check return value on context unload
When calling external contracts we expect exactly 1 value to be on
stack. For methods returning nothing, `Null` value is pushed, otherwise
it is an error.`
2020-08-10 11:52:33 +03:00
Roman Khimov
f5131491b7
Merge pull request #1271 from nspcc-dev/core/call_from_native
core: contractCall from native contracts
2020-08-07 21:24:50 +03:00
Anna Shaleva
c87e2262c3 core: remove ScriptHashGetter from interop context
We have VM inside the context, so don't need ScriptHashGetter anymore.
2020-08-07 20:31:20 +03:00
Anna Shaleva
995053f2eb core: add VM into interop context 2020-08-07 16:15:24 +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
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
bfda60c683 native: add missing witness checks to NEO.(Un)registerCandidate 2020-08-07 09:17:02 +03:00
Evgenii Stratonikov
8af3f05358 native: implement NEO.UnregisterCandidate method 2020-08-06 20:39:13 +03:00
Evgenii Stratonikov
38a92323c9 native: fill votes when registering unregistered candidate
If a candidate was registered, then unregistered and then again
registered, it's votes must not be lost.
2020-08-06 20:39:13 +03:00
Evgenii Stratonikov
b14b047c78 native: add tests for delegated voting 2020-08-06 20:39:13 +03:00
Evgenii Stratonikov
9bc731b3b1 native: implement delegated voting
Close #867.
2020-08-06 20:39:13 +03:00
Evgenii Stratonikov
f0b62cdaa6 native: make *totalSupply accept DAO
There is no need to provide full interop context.
2020-08-06 14:26:24 +03:00
Evgenii Stratonikov
3e39f0f211 native: rename Validator to Candidate 2020-08-06 14:26:24 +03:00
Roman Khimov
57ee8b80e5
Merge pull request #1246 from nspcc-dev/protocol/getblockbyindex
protocol: request blocks by index
2020-08-05 23:21:07 +03:00
Roman Khimov
ef53a45e7a
Merge pull request #1264 from nspcc-dev/smartcontract/manifest/supported_standards
smartcontract: add list of supported standards to manifest
2020-08-04 22:17:00 +03:00
Anna Shaleva
7c6cdcbcc9 core: fix bug with policy.MaxVerificationGas
In 121c9664b we should take into account isValid flag of
NativePolicy contract while retrieving MaxVerificationGas native
policy value. Otherwise we won't be able to get MaxVerificationGas
after the node was restarted, because this value is not truly
stored along with the other native policy values.

This commit fixes bug with headers verification after the  node
restarting with an existing storage:

```
2020-08-03T12:52:56.158+0300	WARN	failed processing headers	{"error": "vm failed to execute the script with error: error encountered at instruction 0 (PUSHDATA1): gas limit is exceeded", "errorVerbose": "vm failed to execute the script with error: error encountered at instruction 0 (PUSHDATA1): gas limit is exceeded\ngithub.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).verifyHashAgainstScript\n\t/home/neospcc/Documents/GitProjects/nspcc-dev/neo-go/pkg/core/blockchain.go:1454\ngithub.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).verifyHeaderWitnesses\n\t/home/neospcc/Documents/GitProjects/nspcc-dev/neo-go/pkg/core/blockchain.go:1517\ngithub.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).verifyHeader\n\t/home/neospcc/Documents/GitProjects/nspcc-dev/neo-go/pkg/core/blockchain.go:1175\ngithub.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).addHeaders\n\t/home/neospcc/Documents/GitProjects/nspcc-dev/neo-go/pkg/core/blockchain.go:484\ngithub.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).AddHeaders\n\t/home/neospcc/Documents/GitProjects/nspcc-dev/neo-go/pkg/core/blockchain.go:453\ngithub.com/nspcc-dev/neo-go/pkg/network.(*Server).handleHeadersCmd\n\t/home/neospcc/Documents/GitProjects/nspcc-dev/neo-go/pkg/network/server.go:454\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1373"}
```
2020-08-04 17:52:34 +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
Anna Shaleva
66ceaa6b75 smartcontract: add list of supported standards to manifest
Closes #1204
2020-08-04 17:29:44 +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
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
Roman Khimov
00671deb8f
Merge pull request #1241 from nspcc-dev/fix/string
Ensure strings are valid UTF-8 where appropriate
2020-08-03 18:10:27 +03:00
Anna Shaleva
13336f9dba core: adjust calling flags of native Policy methods 2020-08-03 16:09:10 +03:00
Anna Shaleva
60f9abae40 core: chenge maxBlockSizeKey of native Policy 2020-08-03 16:00:15 +03:00
Evgenii Stratonikov
f40aba4cd0 vm: convert items to UTF-8 strings
Add `stackitem.ToString` for seamless string conversion.
2020-07-30 12:37:31 +03:00
Anna Shaleva
b9bdab8ec8 core: store nep5balances using contract id
Closes #1194
2020-07-29 15:15:48 +03:00
Anna Shaleva
4bf88ba6b0 core: decouple native contracts from interop service
Closes #1191.
2020-07-29 10:33:18 +03:00
Evgenii Stratonikov
7d8fead1fd native: change onPersist return type to Void 2020-07-27 11:08:01 +03:00
Evgenii Stratonikov
e52c39ae7e manifest: remove EntryPoint from manifest 2020-07-27 11:08:01 +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
Anna Shaleva
6e44499cec core: adjust Neo.Native.Deploy interop
Part of #1055.

It could be that context.Block is nill.
2020-07-22 16:58:32 +03:00
Evgenii Stratonikov
3d7fa9de93 *: make Notify interop accept event name 2020-07-20 13:33:32 +03:00
Roman Khimov
acfded7f45
Merge pull request #1180 from nspcc-dev/fix-calling-scripthash-check-in-nep5
Add calling scripthash check to native nep5 transfers
2020-07-16 07:29:14 +03:00
Roman Khimov
59be6bcd24 native: add calling script hash to NEP5 transfer witness check
Fix transfers from contract's address.
2020-07-15 22:52:35 +03:00
Roman Khimov
d4c3a17883 interop/native: always use proper ScriptHashGetter, fix #924
All scripts are run in VM, so it's there to tell us about script hashes
involved and it must be used instead of nep5ScriptHash kludge.
2020-07-15 22:43:30 +03:00
Anna Shaleva
a3e306ff78 core: implement Secp256k1 Verify and CheckMultisig interops
Closes #918.
2020-07-14 16:21:34 +03:00
Roman Khimov
579630a3fa native: don't expose internal slices to the outside world
They should be hidden.
2020-07-11 19:54:50 +03:00
Roman Khimov
ae497228f0 core: use native NEO GetValidators for bc.GetValidators
NextBlockValidators are updated before the new block persist, so we need to
use GetValidators to get the list corresponding to the current state of the
chain.
2020-07-11 19:54:50 +03:00
Anna Shaleva
abe3c94b95 core: use big.Int to store NEP5 balances
closes #1133
2020-07-09 13:26:39 +03:00
Anna Shaleva
0aaaf7f787 *: switch from fixed8 to int64 in (Blockchain).CalculateClaimable 2020-06-29 21:40:54 +03:00
Anna Shaleva
73b630db9b *: switch from fixed8 to int64
Follow C# implementation, we have to marshall JSON Fixed8 fields without
taking into account decimals.
2020-06-29 21:39:27 +03:00
Evgenii Stratonikov
f007cca80b native: hide native contract methods
Copy public keys when returning them to the outside and hide unused
`GetValidators` method.
2020-06-29 10:48:37 +03:00
Evgenii Stratonikov
bbe02ac584 native: store typed nil in validators cache
Fix `error encountered at instruction 0 (SYSCALL): sync/atomic: store of nil value into Value"`.
2020-06-29 10:37:52 +03:00
Evgenii Stratonikov
978b3c96fe native: cache GetValidators result 2020-06-24 19:42:50 +03:00
Roman Khimov
7987cdadc0 native: update storage item value after gas distribution
Even if the value is zero, the GAS distribution updates the balance height, so
storage item must be updated too. Fixes the followin on preview2 testnet:
block 74227: value mismatch for key ffffffff1454a6cb279fbcedc66162ad4ad5d1d910202b92743e000000000000000000000005: 1041032104809fd5002103f3210128010000 vs 1041032104809fd50021033f110128010000
2020-06-24 10:22:21 +03:00
Roman Khimov
48fac6f87d native: unify some transfer code 2020-06-24 10:22:21 +03:00
Roman Khimov
fccad11716 native: drop accounts with zero balance
They make no sense. Fixes preview2 testnet state problem:

file BlockStorage_100000/dump-block-70000.json: block 69935: state mismatch for key ffffffff1454a6cb279fbcedc66162ad4ad5d1d910202b92743e000000000000000000000005: Deleted vs Added
2020-06-24 10:22:21 +03:00
Roman Khimov
5e56c9db29 native: fix voting accounting in transfers processing
We should modify votes count exactly by the amount of NEO balance change, it
might be negative here.
2020-06-24 10:22:21 +03:00
Roman Khimov
37d44b94e1 native: fix netfee gas redistribution
Preview2 testnet:
file BlockStorage_100000/dump-block-12000.json: block 11562: key mismatch: feffffff1454a6cb279fbcedc66162ad4ad5d1d910202b92743e000000000000000000000005 vs feffffff1431b7e7aea5131f74721e002c6a56b610885813f79e000000000000000000000005

Originally this code was written to run after transactions processing, but
after 0fa4c49735 it works in different manner.
2020-06-24 10:22:21 +03:00
Roman Khimov
d0331bf21b native: simplify votes saving in NEO contract
Follow C# behavior and fix state mismatch at block 11561 of preview2 testnet.
2020-06-24 10:22:21 +03:00
Roman Khimov
e5f05790d5 core: cache standby validators in the Blockchain
They never change, so it makes no sense parsing the keys over and over
again. It also simplifies the interface a little.
2020-06-24 10:22:17 +03:00
Roman Khimov
2f8e7e4d33 native: fix getvalidators to match C# implementation
ValidatorsCount is not initialized at block 0 with C# node (the first voter
initializes it) and until that initialization happens the standby validators
list is being returned as is without sorting.

Fixes state mismatch for the key ffffffff0e00000000000000000000000000000001 in
the first blocks.

It also affects tests as now the first validator is different and it receives
the network fees.
2020-06-24 10:21:24 +03:00
Anna Shaleva
9097a1a23d smartcontract: update (Parameter).MarshalJSON method
MarshalJSON should be defined on structure (not pointer), as we use
structures to marshal parameters (e.g. in NotificationEvent and
Invoke of RPC result package) and never use pointers for that purpose.

Also added marshalling of nil array into `[]` instead of `null` to
follow C# implementation.
2020-06-24 07:58:09 +03:00
Anna Shaleva
c2735a4569 core: add cache to native Policy contract
We can cache maxBlockSize, maxTransactionsPerBlock and feePerByte
in order to reduce the number of storage requests.
2020-06-24 07:36:11 +03:00
Anna Shaleva
08cc04c3d5 core: add native policy contract
part of #904
2020-06-24 07:35:07 +03:00
Roman Khimov
36a65e3847
Merge pull request #1077 from nspcc-dev/neo3/smartcontract/id
core: store smartcontract items by id
2020-06-20 00:12:07 +03:00
Anna Shaleva
f1cdcbc99c core: store smartcontract items by id
closes #1037
2020-06-19 20:48:45 +03:00
Anna Shaleva
c767ac2973 core: fix NEO native contract id
It should be set to -1 as in c# implementation.
2020-06-19 20:44:52 +03:00
Evgenii Stratonikov
a584c5a6a4 native: fix NEP5 contract method prices
Closes #1073.
2020-06-19 12:58:33 +03:00
Evgenii Stratonikov
05dad10e82 native: fix native contract onPersist script
C# implementation uses NEWARRAY for creating arguments.
Don't change our implementation in `emit`, because PACK is cheaper and
this script must not depend on the internal details of `emit` package anyway.
2020-06-19 11:58:38 +03:00
Roman Khimov
dd6895b103 native: optimize GAS onPersist for empty blocks
There is no need to get a list of validators when there are no transactions in
the block.
2020-06-18 21:51:29 +03:00
Evgenii Stratonikov
3e76b9a9bf native: fix Transfer event in burn
Tokens should subtract, but transfer amount is positive.
2020-06-18 16:19:09 +03:00
Evgenii Stratonikov
3894b6db9f native: take into account native contract method prices
Burn gas right before function invoke.
2020-06-18 15:32:27 +03:00
Evgenii Stratonikov
031fd93172 native: fix native contract prices 2020-06-18 15:32:27 +03:00
Evgenii Stratonikov
0fa4c49735 core,native: persist native contract via VM
After native contracts are deployed, single persist script is created
and executed at the start of every block persisting.
2020-06-18 15:32:27 +03:00
Evgenii Stratonikov
a3b876d55c native: specify call flags for native contract methods 2020-06-11 13:16:07 +03:00
Evgenii Stratonikov
0dd00a49f5 core: specify require call flags in interop description
Related #1026, #1027, #1028, #1031.
2020-06-11 13:16:07 +03:00
Evgenii Stratonikov
df958caf93 core: add Manifest to state.Contract 2020-06-11 10:45:24 +03:00
Evgenii Stratonikov
425277098c native: set ContractID for NEO & GAS contracts 2020-06-10 14:23:25 +03:00
Anna Shaleva
4bf103ca12 core: update native contract data serialisation format
closes #908
2020-06-08 13:29:35 +03:00
Anna Shaleva
7ca2807875 vm/encoding: move bigint from vm to encoding package 2020-06-08 13:27:13 +03:00
Anna Shaleva
783f5ecb01 vm: move StackItem to a separate package
closes #912
2020-06-08 13:27:08 +03:00
Roman Khimov
3d18f09def core: fix CalculateClaimable for NEP5 NEO
It's not stored as Fixed8, so calculations need to be adjusted for that.
2020-06-05 19:20:16 +03:00
Roman Khimov
39dfebccc4 core: no longer treat sysfee as claimable
As it's not on Neo 3, it just gets burned and that's it. Only network fee is
being redistributed to CNs.
2020-06-05 19:20:16 +03:00
Roman Khimov
50ed4c5967 core: don't return an error from CalculateClaimable
As it never returns one.
2020-06-05 19:20:16 +03:00
Roman Khimov
a9955719da native: make mint/burn for 0 no-ops
Prevent emitting useless transfer events and doing useless gets/puts.
2020-06-05 19:20:16 +03:00
Roman Khimov
7e586cc6ab native: deduce transferred assets from sender on transfer
When money is being sent usually they go away from someone's pocket, so that
there is a little less money left there. Not in our case as it turns out, we
actually were adding money both to sender and receiver which is nice, but a
bit different from usual economic's expectations.
2020-06-05 19:20:16 +03:00
Anna Shaleva
8fb67615f8 core: sort results of Storage.Find and NEO.getRegisterValidators
Closes #909
We need to match elements order with C# implementation.
2020-05-29 17:33:01 +03:00
Anna Shaleva
9f2cb1726b core: add witness check to nep5 transfer method
We have to check, whether transaction's sender is authorised to transfer
nep5 assets.
2020-05-20 23:34:27 +03:00
Anna Shaleva
7acf5b2841 core: add SystemFee and NetworkFee to transaction
closes #831
2020-05-20 23:26:48 +03:00
Anna Shaleva
6b2f4efdd4 core: fix bug in nep5TokenNative.addTokens method
Sometimes we want to add negative amount (e.g. when burning tokens).
2020-05-20 23:16:04 +03:00
Anna Shaleva
c7a040ff81 core: fix bug with native contracts methods initialisation
`NewNEO()` and `NewGAS()` methods are trying to initialise
both `onPersist` and `incBalance` methods of NEO and GAS AFTER
nep5TokenNative is set to the VALUE of created nep5 token.
In this situation an attemmpt to call the corresponding native contracts
methods (e.g. transfer native GAS) leads to contract invocation failure,
as far as `nep5TokenNative.incBalance` method is nil.

Fixed this by initializing both `onPersist` and `incBalance` methods
before getting the value of nep5 contract.
2020-05-20 23:16:04 +03:00
Evgenii Stratonikov
301c1b7601 native: save native contract state on deploy 2020-05-07 14:03:14 +03:00
Anna Shaleva
5ece9922c1 vm: hide GetContextScriptHash() method
After adding ScriptHashGetter interface to vm, there's no need in
GetContextScriptHash() to be exported.
2020-05-04 11:53:31 +03:00
Anna Shaleva
73167999cc core: add cosigners field to transaction
closes #864
2020-05-04 11:53:31 +03:00
Roman Khimov
b83e84ca08 core: switch to the new voting system (via native NEO contract)
It has all the methods required now, so you can register, vote and get
voting results. Fixes #865.
2020-04-27 16:06:50 +03:00
Roman Khimov
2fa3bdf6a9 core/native: move Votes from account to native NEO state 2020-04-27 12:30:39 +03:00
Roman Khimov
bc4a6a6bab core/native: move NextValidators storage to NEO contract 2020-04-27 12:30:39 +03:00
Roman Khimov
66c80d429e native: update voting information when changing Neo balance 2020-04-27 12:30:39 +03:00
Roman Khimov
36c6c6690b native: distribute GAS even for empty transfers
As it's one of the use cases.
2020-04-27 12:30:39 +03:00
Roman Khimov
064636768b core/native: move ValidatorsCount processing into native NEO contract 2020-04-27 12:30:39 +03:00
Roman Khimov
3476a18fa9 core/native: store validators in NEO native contract state
This technically breaks voting with UTXO-based NEO (processTXWithValidators*),
but we're moving towards the new system.
2020-04-27 12:30:39 +03:00
Roman Khimov
4e8ee697ee native: store NEO and GAS state in the storage
As it should be done (although current serialization format is not quite
right).
2020-04-27 12:30:39 +03:00
Roman Khimov
8c02c6b22c native: put proper Null StackItem for transfer event
nil is not a good StackItem, we have proper VM-level Null for this.
2020-04-27 12:30:39 +03:00
Roman Khimov
1dcace1594 native: don't distribute gas at block 0
It fails at the moment and it doesn't make sense at conceptual level.
2020-04-27 12:30:39 +03:00
Roman Khimov
30836ca69b core/native: untangle native contracts initialization
The notion of NativeContractState shouldn't ever existed, native contract is a
contract and its state is saved as regular contract state which is critical
because we'll have MPT calculations over this state soon.

Initial minting should be done in Neo.Native.Deploy because it generates
notification that should have proper transaction context.

RegisterNative() shouldn't exist as a public method, native contracts are only
registered at block 0 and they can do it internally, no outside user should be
able to mess with it.

Move some structures from `native` package to `interop` also to avoid circular
references as interop.Context has to have a list of native contracts (exposing
them via Blockchainer is again too dangerous, it's too powerful tool).
2020-04-27 12:30:39 +03:00
Anna Shaleva
869c7d6afa core: init native interops in the genesis block
closes #836
2020-04-27 12:30:39 +03:00
Evgenii Stratonikov
bfbbef952a vm: move InteropNameToID to emit package 2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
76700f31cf core: implement skeletons for NEO/GAS native contracts 2020-04-16 15:55:35 +03:00
Evgenii Stratonikov
25354c44f9 core: implement NativeContract support 2020-04-16 15:55:34 +03:00