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htlcswitch: extract onion decode function

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This commit is contained in:
Joost Jager 2021-04-27 16:43:06 +02:00
parent dee6a1a29b
commit 94b6f8af5b
1 changed files with 18 additions and 18 deletions
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36
htlcswitch/hop/iterator.go
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@ -251,9 +251,8 @@ func (p *OnionProcessor) DecodeHopIterators(id []byte,
tx := p.router.BeginTxn(id, batchSize)
for i, req := range reqs {
onionPkt := &onionPkts[i]
resp := &resps[i]
decode := func(seqNum uint16, onionPkt *sphinx.OnionPacket,
req DecodeHopIteratorRequest) lnwire.FailCode {
err := onionPkt.Decode(req.OnionReader)
switch err {
@ -261,45 +260,46 @@ func (p *OnionProcessor) DecodeHopIterators(id []byte,
// success
case sphinx.ErrInvalidOnionVersion:
resp.FailCode = lnwire.CodeInvalidOnionVersion
continue
return lnwire.CodeInvalidOnionVersion
case sphinx.ErrInvalidOnionKey:
resp.FailCode = lnwire.CodeInvalidOnionKey
continue
return lnwire.CodeInvalidOnionKey
default:
log.Errorf("unable to decode onion packet: %v", err)
resp.FailCode = lnwire.CodeInvalidOnionKey
continue
return lnwire.CodeInvalidOnionKey
}
err = tx.ProcessOnionPacket(
uint16(i), onionPkt, req.RHash, req.IncomingCltv,
seqNum, onionPkt, req.RHash, req.IncomingCltv,
)
switch err {
case nil:
// success
return lnwire.CodeNone
case sphinx.ErrInvalidOnionVersion:
resp.FailCode = lnwire.CodeInvalidOnionVersion
continue
return lnwire.CodeInvalidOnionVersion
case sphinx.ErrInvalidOnionHMAC:
resp.FailCode = lnwire.CodeInvalidOnionHmac
continue
return lnwire.CodeInvalidOnionHmac
case sphinx.ErrInvalidOnionKey:
resp.FailCode = lnwire.CodeInvalidOnionKey
continue
return lnwire.CodeInvalidOnionKey
default:
log.Errorf("unable to process onion packet: %v", err)
resp.FailCode = lnwire.CodeInvalidOnionKey
continue
return lnwire.CodeInvalidOnionKey
}
}
for i, req := range reqs {
onionPkt := &onionPkts[i]
resp := &resps[i]
resp.FailCode = decode(uint16(i), onionPkt, req)
}
// With that batch created, we will now attempt to write the shared
// secrets to disk. This operation will returns the set of indices that
// were detected as replays, and the computed sphinx packets for all