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zeekay
7cf87b230b
The module already called itself github.com/luxfi/node while containing no node in Go: cmd/luxd was twenty-one lines that printed the size of a few types, and the Go column of the matrix measured a VM plugin. A repo that fetches the thing it claims to be has not replaced it, so the Go sources move in — 1515 files, the daemon and everything under it — and the build reaches outside this module for nothing. Rust and C++ sit beside it unchanged and are still measured against it by the differential. That is the point of one repo: the reference implementation and the two ports are the same checkout, so parity is a thing you can run rather than a thing you assert. Verified: builds, and the closure carries no lux-private — checked at build time rather than believed. The daemon starts twelve chains on a local network (P X C Q Z A B G K M F, plus D through its plugin) and reports healthy.
108 lines
3.3 KiB
Go
108 lines
3.3 KiB
Go
// Copyright (C) 2019-2026, Lux Industries Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package txs
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import (
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"context"
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"errors"
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"github.com/luxfi/constants"
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"github.com/luxfi/ids"
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"github.com/luxfi/node/vms/components/verify"
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"github.com/luxfi/node/vms/platformvm/fx"
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"github.com/luxfi/runtime"
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lux "github.com/luxfi/utxo"
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"github.com/luxfi/zap"
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)
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var (
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_ UnsignedTx = (*TransferChainOwnershipTx)(nil)
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ErrTransferPermissionlessChain = errors.New("cannot transfer ownership of a permissionless chain")
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)
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// TransferChainOwnershipTx re-owns a chain. The struct IS the wire: it embeds
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// the spending envelope and reads its delta fields by offset.
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//
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// Delta layout (fixed section, after the 77-byte spending envelope):
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//
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// Chain 32B @ 77 (id)
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// ChainAuth 8B @ 109 (auth ptr: sig-index list)
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// Owner.Threshold u32 @ 117
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// Owner.Locktime u64 @ 121
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// Owner.Addrs 8B @ 129 (addr list ptr)
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type TransferChainOwnershipTx struct {
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spendingTx
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}
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const (
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offTransferChain = spendSize // 77
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offTransferChainAuth = 109
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offTransferOwnerThreshold = 117
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offTransferOwnerLocktime = 121
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offTransferOwnerAddrs = 129
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sizeTransferChainOwnership = 137
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)
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// NewTransferChainOwnershipTx builds the tx into a fresh zap buffer.
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func NewTransferChainOwnershipTx(base *lux.BaseTx, chain ids.ID, chainAuth verify.Verifiable, owner fx.Owner) (*TransferChainOwnershipTx, error) {
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b := zap.NewBuilder(zap.HeaderSize + 512 + sizeTransferChainOwnership)
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p, err := writeSpending(b, base)
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if err != nil {
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return nil, err
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}
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authOff, authCount, err := writeAuth(b, chainAuth)
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if err != nil {
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return nil, err
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}
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threshold, locktime, addrOff, addrCount, err := writeOwner(b, owner)
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if err != nil {
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return nil, err
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}
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ob := b.StartObject(sizeTransferChainOwnership)
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setEnvelope(ob, kindTransferChainOwnership, base, p)
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setID(ob, offTransferChain, chain)
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ob.SetList(offTransferChainAuth, authOff, authCount)
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setOwner(ob, offTransferOwnerThreshold, offTransferOwnerLocktime, offTransferOwnerAddrs, threshold, locktime, addrOff, addrCount)
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ob.FinishAsRoot()
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msg, _ := zap.Parse(b.Finish())
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return &TransferChainOwnershipTx{spendingTx{msg}}, nil
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}
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// Chain is the ID of the chain this tx is modifying (offset read).
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func (tx *TransferChainOwnershipTx) Chain() ids.ID { return readID(tx.root(), offTransferChain) }
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// ChainAuth proves the issuer has the right to modify the chain.
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func (tx *TransferChainOwnershipTx) ChainAuth() verify.Verifiable {
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return readAuth(tx.root(), offTransferChainAuth)
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}
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// Owner is who is now authorized to manage this chain.
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func (tx *TransferChainOwnershipTx) Owner() fx.Owner {
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return readOwner(tx.root(), offTransferOwnerThreshold, offTransferOwnerLocktime, offTransferOwnerAddrs)
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}
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func (tx *TransferChainOwnershipTx) SyntacticVerify(rt *runtime.Runtime) error {
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switch {
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case tx == nil:
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return ErrNilTx
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case tx.Chain() == constants.PrimaryNetworkID:
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return ErrTransferPermissionlessChain
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}
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if err := verifyBaseTx(tx.baseTx(), rt); err != nil {
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return err
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}
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return verify.All(tx.ChainAuth(), tx.Owner())
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}
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func (tx *TransferChainOwnershipTx) Visit(visitor Visitor) error {
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return visitor.TransferChainOwnershipTx(tx)
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}
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// Initialize is a no-op; the struct is already the wire.
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func (tx *TransferChainOwnershipTx) Initialize(ctx context.Context) error { return nil }
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