// Create a new Acknowledgement. Must be called by a leader. This
// call assumes all the pieces are in place to create a new acknowledgement
func (s *State) NewAck(msg interfaces.IMsg) interfaces.IMsg {
vmIndex := msg.GetVMIndex()
msg.SetLeaderChainID(s.IdentityChainID)
ack := new(messages.Ack)
ack.DBHeight = s.LLeaderHeight
ack.VMIndex = vmIndex
ack.Minute = byte(s.ProcessLists.Get(s.LLeaderHeight).VMs[vmIndex].LeaderMinute)
ack.Timestamp = s.GetTimestamp()
ack.SaltNumber = s.GetSalt(ack.Timestamp)
copy(ack.Salt[:8], s.Salt.Bytes()[:8])
ack.MessageHash = msg.GetMsgHash()
ack.LeaderChainID = s.IdentityChainID
listlen := len(s.LeaderPL.VMs[vmIndex].List)
if listlen == 0 {
ack.Height = 0
ack.SerialHash = ack.MessageHash
} else {
last := s.LeaderPL.GetAckAt(vmIndex, listlen-1)
ack.Height = last.Height + 1
ack.SerialHash, _ = primitives.CreateHash(last.MessageHash, ack.MessageHash)
}
ack.Sign(s)
return ack
}
func TestAuthoritySignature(t *testing.T) {
s := testHelper.CreateAndPopulateTestState()
idindex := s.CreateBlankFactomIdentity(primitives.NewZeroHash())
s.Identities[idindex].ManagementChainID = primitives.NewZeroHash()
index := s.AddAuthorityFromChainID(primitives.NewZeroHash())
s.Authorities[index].SigningKey = *(s.GetServerPublicKey())
s.Authorities[index].Status = 1
ack := new(messages.Ack)
ack.DBHeight = s.LLeaderHeight
ack.VMIndex = 1
ack.Minute = byte(5)
ack.Timestamp = s.GetTimestamp()
ack.MessageHash = primitives.NewZeroHash()
ack.LeaderChainID = s.IdentityChainID
ack.SerialHash = primitives.NewZeroHash()
err := ack.Sign(s)
if err != nil {
t.Error("Authority Test Failed when signing message")
}
msg, err := ack.MarshalForSignature()
if err != nil {
t.Error("Authority Test Failed when marshalling for sig")
}
sig := ack.GetSignature()
server, err := s.Authorities[0].VerifySignature(msg, sig.GetSignature())
if !server || err != nil {
t.Error("Authority Test Failed when checking sigs")
}
}
func (p *ProcessList) AddToProcessList(ack *messages.Ack, m interfaces.IMsg) {
if p == nil {
return
}
// We don't check the SaltNumber if this isn't an actual message, i.e. a response from
// the past.
if !ack.Response && ack.LeaderChainID.IsSameAs(p.State.IdentityChainID) {
num := p.State.GetSalt(ack.Timestamp)
if num != ack.SaltNumber {
os.Stderr.WriteString(fmt.Sprintf("This ChainID %x\n", p.State.IdentityChainID.Bytes()))
os.Stderr.WriteString(fmt.Sprintf("This Salt %x\n", p.State.Salt.Bytes()[:8]))
os.Stderr.WriteString(fmt.Sprintf("This SaltNumber %x\n for this ack", num))
os.Stderr.WriteString(fmt.Sprintf("Ack ChainID %x\n", ack.LeaderChainID.Bytes()))
os.Stderr.WriteString(fmt.Sprintf("Ack Salt %x\n", ack.Salt))
os.Stderr.WriteString(fmt.Sprintf("Ack SaltNumber %x\n for this ack", ack.SaltNumber))
panic("There are two leaders configured with the same Identity in this network! This is a configuration problem!")
}
}
if _, ok := m.(*messages.MissingMsg); ok {
panic("This shouldn't happen")
}
toss := func(hint string) {
fmt.Println("dddd TOSS in Process List", p.State.FactomNodeName, hint)
fmt.Println("dddd TOSS in Process List", p.State.FactomNodeName, ack.String())
fmt.Println("dddd TOSS in Process List", p.State.FactomNodeName, m.String())
delete(p.State.Holding, ack.GetHash().Fixed())
delete(p.State.Acks, ack.GetHash().Fixed())
}
now := p.State.GetTimestamp()
vm := p.VMs[ack.VMIndex]
if len(vm.List) > int(ack.Height) && vm.List[ack.Height] != nil {
_, isNew2 := p.State.Replay.Valid(constants.INTERNAL_REPLAY, m.GetRepeatHash().Fixed(), m.GetTimestamp(), now)
if !isNew2 {
toss("seen before, or too old")
return
}
}
if ack.DBHeight != p.DBHeight {
panic(fmt.Sprintf("Ack is wrong height. Expected: %d Ack: %s", p.DBHeight, ack.String()))
return
}
if len(vm.List) > int(ack.Height) && vm.List[ack.Height] != nil {
if vm.List[ack.Height].GetMsgHash().IsSameAs(m.GetMsgHash()) {
fmt.Printf("dddd %-30s %10s %s\n", "xxxxxxxxx PL Duplicate ", p.State.GetFactomNodeName(), m.String())
fmt.Printf("dddd %-30s %10s %s\n", "xxxxxxxxx PL Duplicate ", p.State.GetFactomNodeName(), ack.String())
fmt.Printf("dddd %-30s %10s %s\n", "xxxxxxxxx PL Duplicate vm", p.State.GetFactomNodeName(), vm.List[ack.Height].String())
fmt.Printf("dddd %-30s %10s %s\n", "xxxxxxxxx PL Duplicate vm", p.State.GetFactomNodeName(), vm.ListAck[ack.Height].String())
toss("2")
return
}
vm.List[ack.Height] = nil
return
}
// From this point on, we consider the transaction recorded. If we detect it has already been
// recorded, then we still treat it as if we recorded it.
vm.heartBeat = 0 // We have heard from this VM
// We have already tested and found m to be a new message. We now record its hashes so later, we
// can detect that it has been recorded. We don't care about the results of IsTSValid_ at this point.
p.State.Replay.IsTSValid_(constants.INTERNAL_REPLAY, m.GetRepeatHash().Fixed(), m.GetTimestamp(), now)
p.State.Replay.IsTSValid_(constants.INTERNAL_REPLAY, m.GetMsgHash().Fixed(), m.GetTimestamp(), now)
delete(p.State.Acks, ack.GetHash().Fixed())
delete(p.State.Holding, m.GetMsgHash().Fixed())
// Both the ack and the message hash to the same GetHash()
m.SetLocal(false)
ack.SetLocal(false)
ack.SetPeer2Peer(false)
m.SetPeer2Peer(false)
ack.SendOut(p.State, ack)
m.SendOut(p.State, m)
for len(vm.List) <= int(ack.Height) {
vm.List = append(vm.List, nil)
vm.ListAck = append(vm.ListAck, nil)
}
p.VMs[ack.VMIndex].List[ack.Height] = m
p.VMs[ack.VMIndex].ListAck[ack.Height] = ack
p.AddOldMsgs(m)
p.OldAcks[m.GetMsgHash().Fixed()] = ack
}