It's not correct to use an updated contract state got from Management to
check for the allowed method call. We need to use manifest from the
currently executing context for that. It may be critical for cases when
executing contract is being updated firstly, and after that calls
another contract. So we need an old (executing) contract manifest for
this check.
This change likely does not affect the mainnet's state since it's hard
to meet the trigger criteria, but I'd put it under the hardfork anyway.
Ref. https://github.com/neo-project/neo/pull/3290.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
This test ensures that NeoGo node doesn't have the DeepCopy problem
described in https://github.com/neo-project/neo/issues/3300 and fixed in
https://github.com/neo-project/neo/pull/3301. This problem leads to the
fact that Notifications items are not being properly refcounted by C#
node which leads to possibility to build an enormously large object on
stack. Go node doesn't have this problem.
The reason (at least, as I understand it) is in the fact that C# node
performs objects refcounting inside the DeepCopy even if the object
itself is not yet on stack. I.e. System.Runtime.Notify handler
immediately adds references to the notification argumetns inside
DeepCopy:
b1d27f0189/src/Neo.VM/Types/Array.cs (L108)b1d27f0189/src/Neo.VM/Types/Array.cs (L75)
Whereas Go node just performs the honest DeepCopy without references counting:
b66cea5ccc/pkg/vm/stackitem/item.go (L1223)
Going further, C# node clears refs for notification arguments (for array
and underlying array items). System.Runtime.GetNotifications pushes the
notificaiton args array back on stack and increments counter only for
the external array, not for its arguments. Which results in negative
refcounter once notificaiton is removed from the stack. The fix itself
(f471c0542d/src/Neo/SmartContract/NotifyEventArgs.cs (L84))
doesn't need to be ported to NeoGo because Go node adds object to the
refcounter only at the moment when it's being pushed to stack by
System.Runtime.GetNotifications handler. This object is treated as new
object since it was deepcopied earlier by System.Runtime.Notify handler:
b66cea5ccc/pkg/vm/stack.go (L178).
Thus, no functoinal changes from the NeoGo side. And we won't
intentionally break our node to follow C# pre-Domovoi invalid behaviour.
Close#3484, close#3482.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Do not use the updated contract state from native Management to perform
permissions checks. We need to use the currently executing state
instead got from the currently executing VM context until context is
unloaded.
Close#3471.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Account is blocked when it's in the Policy's storage, not when it's
missing from the Policy storage. Introduced in
bbbc6805a8.
This bug leads to the fact that during native Neo cache initialization
at the last block in the dBFT epoch, all candidates accounts are
"blocked", and thus, stand-by committee and validators are used in the
subsequent new epoch. Close#3424.
This bug may lead to the consequences described in #3273, but it needs
to be confirmed.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
It's possible for transaction to include block hash into Conflicts
attribure. If so, then we must not remove block executable record while
cleaning transation's conflict records.
This commit is a direct consequence of
e6ceee0f230a21c87006a9297636be29c0d8ea47. Ref. #3427.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Conflicts-related code contains more and more these magic numbers, and
there's no good in it even if all the usages are commented. This
approach produces bugs like #3426.
No functional changes, just a refactoring.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Conflict record stub has value of 5 bytes length: 1 byte for
storage.ExecTransaction prefix and 4 bytes for the block index LE. This
scheme was implemented in #3138, and this commit should be a part of
this PR.
Also, transaction.DummyVersion is removed since it's unused anymore.
Close#3426. The reason of `failed to locate application log: EOF` error
during genesis AER request is in the following: genesis executable was
overwritten by conflict record stub produced by transaction
0x289c235dcdab8be7426d05f0fbb5e86c619f81481ea136493fa95deee5dbb7cc (ref.
#3427). As a consequence, an attempt to decode transaction AER was
initited, but conflict record scheme was changed in #3138.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Transaction
0x289c235dcdab8be7426d05f0fbb5e86c619f81481ea136493fa95deee5dbb7cc is
already on mainnet at block 5272006 and we can't do anything with it.
This transaction has genesis block hash in Conflicts attribute. It leads
to the following consequences:
1. Genesis block executable record is overwritten by conflict record
stub. Genesis block can't be retrieved anymore. This bug is described
in #3427.
2. Somehow this transaction has passed verification on NeoGo CN without
any warnings:
```
Apr 24 16:12:30 kangra neo-go[2453907]: 2024-04-24T16:12:30.865+0300 INFO initializing dbft {"height": 5272006, "view": 0, "index": 6, "role": "Backup"}
Apr 24 16:12:31 kangra neo-go[2453907]: 2024-04-24T16:12:31.245+0300 INFO persisted to disk {"blocks": 1, "keys": 37, "headerHeight": 5272005, "blockHeight": 5272005, "took": "14.548903ms"}
Apr 24 16:12:34 kangra neo-go[2453907]: 2024-04-24T16:12:34.977+0300 ERROR can't add SV-signed state root {"error": "stateroot mismatch at block 5272005: 9d5f95784f26c862d6f889f213aad1e3330611880c02330e88db8802c750aa46 vs d25304d518645df725014897d13bbf023919928e79074abcea48f31cf9f32a25"}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.820+0300 INFO received PrepareRequest {"validator": 5, "tx": 1}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.821+0300 INFO sending PrepareResponse {"height": 5272006, "view": 0}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.827+0300 INFO received PrepareResponse {"validator": 4}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.830+0300 INFO received PrepareResponse {"validator": 3}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.875+0300 INFO received PrepareResponse {"validator": 2}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.878+0300 INFO sending Commit {"height": 5272006, "view": 0}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.879+0300 INFO received Commit {"validator": 4}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.881+0300 INFO received PrepareResponse {"validator": 0}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.881+0300 INFO received Commit {"validator": 3}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.906+0300 INFO received Commit {"validator": 0}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.907+0300 INFO received PrepareResponse {"validator": 1}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.915+0300 INFO received Commit {"validator": 1}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.915+0300 INFO approving block {"height": 5272006, "hash": "6b111519537343ce579d04ccad71c43318b12c680d0f374dfcd466aa22643fb6", "tx_count": 1, "merkle": "ccb7dbe5ee5da93f4936a11e48819f616ce8b5fbf0056d42e78babcd5d239c28", "prev": "12ad6cc5d0cd357b9fc9fb0c1a016ba8014d3cdd5a96818598e6a40a1a4a2a21"}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.917+0300 WARN contract invocation failed {"tx": "289c235dcdab8be7426d05f0fbb5e86c619f81481ea136493fa95deee5dbb7cc", "block": 5272006, "error": "at instruction 86 (ASSERT): ASSERT failed"}
Apr 24 16:12:45 kangra neo-go[2453907]: 2024-04-24T16:12:45.950+0300 INFO initializing dbft {"height": 5272007, "view": 0, "index": 6, "role": "Primary"}
Apr 24 16:12:46 kangra neo-go[2453907]: 2024-04-24T16:12:46.256+0300 INFO persisted to disk {"blocks": 1, "keys": 67, "headerHeight": 5272006, "blockHeight": 5272006, "took": "16.576594ms"}
```
And thus, we must treat this transaction as valid for this behaviour
to be reproducable.
This commit contains two fixes:
1. Do not overwrite block executable records by conflict record stubs.
If some transaction conflicts with block, then just skip the conflict
record stub for this attribute since it's impossible to create
transaction with the same hash.
2. Do not fail verification for those transactions that have Conflicts
attribute with block hash inside. This one is controversial, but we
have to adjust this code to treat already accepted transaction as
valid.
Close#3427.
The transaction itself:
```
{
"id" : 1,
"jsonrpc" : "2.0",
"result" : {
"attributes" : [
{
"height" : 0,
"type" : "NotValidBefore"
},
{
"hash" : "0x1f4d1defa46faa5e7b9b8d3f79a06bec777d7c26c4aa5f6f5899a291daa87c15",
"type" : "Conflicts"
}
],
"blockhash" : "0xb63f6422aa66d4fc4d370f0d682cb11833c471adcc049d57ce4373531915116b",
"blocktime" : 1713964365700,
"confirmations" : 108335,
"hash" : "0x289c235dcdab8be7426d05f0fbb5e86c619f81481ea136493fa95deee5dbb7cc",
"netfee" : "237904",
"nonce" : 0,
"script" : "CxAMFIPvkoyXujYCRmgq9qEfMJQ4wNveDBSD75KMl7o2AkZoKvahHzCUOMDb3hTAHwwIdHJhbnNmZXIMFPVj6kC8KD1NDgXEjqMFs/Kgc0DvQWJ9W1I5",
"sender" : "NbcGB1tBEGM5MfhNbDAimvpJKzvVjLQ3jW",
"signers" : [
{
"account" : "0x649ca095e38a790d6c15ff78e0c6175099b428ac",
"scopes" : "None"
},
{
"account" : "0xdedbc03894301fa1f62a68460236ba978c92ef83",
"scopes" : "None"
}
],
"size" : 412,
"sysfee" : "997778",
"validuntilblock" : 5277629,
"version" : 0,
"vmstate" : "FAULT",
"witnesses" : [
{
"invocation" : "DECw8XNuyRg5vPeHxisQXlZ7VYNDxxK4xEm8zwpPyWJSSu+JaRKQxdrlPkXxXj34wc4ZSrZvKICGgPFE0ZHXhLPo",
"verification" : "DCEC+PI2tRSlp0wGwnjRuQdWdI0tBXNS7SlzSBBHFsaKUsdBVuezJw=="
},
{
"invocation" : "DEAxwi97t+rg9RsccOUzdJTJK7idbR7uUqQp0/0/ob9FbuW/tFius3/FOi82PDZtwdhk7s7KiNM/pU7vZLsgIbM0",
"verification" : "DCEDbInkzF5llzmgljE4HSMvtrNgPaz73XO5wgVJXLHNLXRBVuezJw=="
}
]
}
}
```
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
These warnings must be monitored by developers since it might be a sign
of behaviour difference between Go and C# nodes.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Make the script a bit shorter. ABORTMSG would cost a bit more.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
1. Make prologue be exactly the same as regular CheckMultisig.
2. But instead of "SYSCALL System.Crypto.CheckMultisig" do INITSLOT and K check.
3. This makes all of the code from INITSLOT below be independent of N/M, so
one can parse the script beginning in the same way CheckMultisig is parsed and
then just compare the rest of it with some known-good blob.
4. The script becomes a tiny bit larger now, but properties above are too good.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Value calculated by calculatenetworkfee is enough to pass the real
tx verification. However, network fee may be decreased, so calculations
are not quite accurate. Need to investigate, why.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Replace native CryptoLib's verifyWithECDsa `curve` parameter by
`curveHash` parameter which is a enum over supported pairs of named
curves and hash functions.
Even though this change is a compatible extension of the protocol, it
changes the genesis state due to parameter renaming. But we're going to
resync chain in 3.7 release anyway, so it's not a big deal.
Also, we need to check mainnet and testnet compatibility in case if
anyone has ever called verifyWithECDsa with 24 or 25 `curve` value.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Ensure that Blockchain constructor is able to distinguish empty
Hardforks map (no hardforks should be enabled) from nil hardforks map
(the default value should be used in this case, i.e. all hardforks
should be active from genesis).
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
If we're withdrawing funds to contract that has onNEP17Payment method,
then it may call Notary's withdraw one more time, but the account's
state is not yet updated by this moment.
The problem is similar to https://github.com/neo-project/neo/pull/2734.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
And refactor some code a bit, don't use bytes.Clone where type-specific
helpers may be used instead.
Close#2907.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
It's a bug since Prefix is shared between all iterator items and
appending is not enough. If prefix has enough capacity, then new slice
won't be created and the previous item's prefix will be changed.
This commit fixes the following test failure caused by moving from
bytes.Clone to slice.Copy:
```
--- FAIL: TestComlileAndInvokeFunction/test_Storage.Find (0.02s)
--- FAIL: TestComlileAndInvokeFunction/test_Storage.Find/keys_only (0.01s)
contract_test.go:866:
Error Trace: /home/anna/Documents/GitProjects/nspcc-dev/neo-go/cli/smartcontract/contract_test.go:866
Error: Not equal:
expected: []stackitem.Item{(*stackitem.ByteArray)(0xc000a1cdf8), (*stackitem.ByteArray)(0xc000a1ce10)}
actual : []stackitem.Item{(*stackitem.ByteArray)(0xc000a1cdb0), (*stackitem.ByteArray)(0xc000a1cdc8)}
Diff:
--- Expected
+++ Actual
@@ -2,3 +2,3 @@
(*stackitem.ByteArray)((len=8) {
- 00000000 66 69 6e 64 6b 65 79 31 |findkey1|
+ 00000000 66 69 6e 64 6b 65 79 32 |findkey2|
}),
Test: TestComlileAndInvokeFunction/test_Storage.Find/keys_only
--- FAIL: TestComlileAndInvokeFunction/test_Storage.Find/both (0.01s)
contract_test.go:881:
Error Trace: /home/anna/Documents/GitProjects/nspcc-dev/neo-go/cli/smartcontract/contract_test.go:881
Error: Not equal:
expected: []stackitem.Item{(*stackitem.ByteArray)(0xc000515920), (*stackitem.ByteArray)(0xc000515938)}
actual : []stackitem.Item{(*stackitem.ByteArray)(0xc000515848), (*stackitem.ByteArray)(0xc000515860)}
Diff:
--- Expected
+++ Actual
@@ -2,3 +2,3 @@
(*stackitem.ByteArray)((len=8) {
- 00000000 66 69 6e 64 6b 65 79 31 |findkey1|
+ 00000000 66 69 6e 64 6b 65 79 32 |findkey2|
}),
Test: TestComlileAndInvokeFunction/test_Storage.Find/both
```
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Revert 5f6c01336c, remove all multierror
related nolint comments and use multierror wrapping instead.
Close#2906.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Added sync logs for every service separately to provide the ability to
have a custom logger for each service. This commit makes the code follow
the zap usages rules: `Sync calls the underlying Core's Sync method,
flushing any buffered log entries. Applications should take care to
call Sync before exiting.`
Signed-off-by: Ekaterina Pavlova <ekt@morphbits.io>
New event is to notify the user about header's content by the moment
when block is stored (which happens after block's processing). This is
needed for proper Waiter work.
Closes#2751.
Signed-off-by: Ekaterina Pavlova <ekt@morphbits.io>
We have cache update mechanism (Neo's cache votesChanged flag), it must
be used for current epoch and new epoch cached values update. And the
cached current/new epoch values themselves must always contain valid
information for the current/new epoch. These cached values must only be
changed once per epoch, never set them to nil.
This commit prevents CN node panic described in #3253 when dBFT tries
to retrieve new epoch validators with some votes modifications made
before at the same dBFT epoch.
Close#3253.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
I had some reason to suspect something is wrong here (but it's all OK). Even
though this is kinda tested in TestDeployGetUpdateDestroyContract, it uses
internal APIs and with neotest we can ensure it work OK for a complete tx/block
environment. So, won't hurt having these tests as well.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
Initialise services dependant on roles designation based on N+1
block so that Genesis roles extension work properly. There's not
much sence to fetch node roles information for the latest persisted
block because Designation contract itself makes designated nodes
responsible since the next subsequent block.
A part of #3228.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Manifest will be a part of the state.Contract which will be checked on its
way to the storage. Tiny optimisation which allows not to serialize manifest
twice. Ref. https://github.com/nspcc-dev/neo-go/pull/3218#discussion_r1402374232.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
This method returns persisted block height and doesn't take into account
persisting block height. Some of the callers of this method relay on
the wrong assumption that BlockHeight() returns persisting block index.
Fix improper usages of this method and adjust tests. Ref.
61a066583e/src/Neo/SmartContract/ApplicationEngine.cs (L634).
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
We have this log on the network server side, but it would also be
useful in case of failed blockchain initialization.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Refactored native NeoToken cache scheme introduced in #3110 sometimes requires
validators list recalculation during native cache initialization process (when
initializing with the existing storage from the block that is preceded each N-th block).
To recalculate validators from candidates, native NeoToken needs an access to
cached native Policy blocked accounts. By the moment of native Neo initialization,
the cache of native Policy is not yet initialized, thus we need a direct DAO access
for Policy to handle blocked account check.
Close#3181.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
This section contains genesis-related settings including genesis-related or natives-related
extensions. Currently it includes the set of node roles that may be designated
duing the native Designation contract initialisation.
Close#3156.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
And rename roles.go to role.go to match the role_string.go and the
existing naming pattern for enums.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
We often use binary.PutUint*, but almost all these cases have preallocated
buffer of the size that matches exactly the desired one and use a single or
a couple of calls to PutUint*. Thus, I don't think that replacing
binary.PutUint* by AppendUint* will make things better for all these usages.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
