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core: fix bug with policy.MaxVerificationGas

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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"}
```
This commit is contained in:
Anna Shaleva 2020-08-03 13:30:51 +03:00
parent e9d41c78c9
commit 7c6cdcbcc9
1 changed files with 6 additions and 1 deletions
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5
pkg/core/native/policy.go
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@ -203,6 +203,8 @@ func (p *Policy) OnPersistEnd(dao dao.DAO) {
maxBlockSystemFee := p.getInt64WithKey(dao, maxBlockSystemFeeKey)
p.maxBlockSystemFee = maxBlockSystemFee
p.maxVerificationGas = defaultMaxVerificationGas
p.isValid = true
}
@ -256,8 +258,11 @@ func (p *Policy) GetFeePerByteInternal(dao dao.DAO) int64 {
// GetMaxVerificationGas returns maximum gas allowed to be burned during verificaion.
func (p *Policy) GetMaxVerificationGas(_ dao.DAO) int64 {
if p.isValid {
return p.maxVerificationGas
}
return defaultMaxVerificationGas
}
// getMaxBlockSystemFee is Policy contract method and returns the maximum overall
// system fee per block.