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les, light: remove untrusted header retrieval in ODR (#21907)

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* les, light: remove untrusted header retrieval in ODR

* les: polish

* light: check the hash equality in odr
This commit is contained in:
gary rong
2020-12-10 21:33:52 +08:00
committed by GitHub
parent 817a3fb562
commit 9f6bb492bb
9 changed files with 125 additions and 82 deletions
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6
les/sync.go
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@ -56,8 +56,8 @@ func (h *clientHandler) validateCheckpoint(peer *serverPeer) error {
defer cancel()
// Fetch the block header corresponding to the checkpoint registration.
cp := peer.checkpoint
header, err := light.GetUntrustedHeaderByNumber(ctx, h.backend.odr, peer.checkpointNumber, peer.id)
wrapPeer := &peerConnection{handler: h, peer: peer}
header, err := wrapPeer.RetrieveSingleHeaderByNumber(ctx, peer.checkpointNumber)
if err != nil {
return err
}
@ -66,7 +66,7 @@ func (h *clientHandler) validateCheckpoint(peer *serverPeer) error {
if err != nil {
return err
}
events := h.backend.oracle.Contract().LookupCheckpointEvents(logs, cp.SectionIndex, cp.Hash())
events := h.backend.oracle.Contract().LookupCheckpointEvents(logs, peer.checkpoint.SectionIndex, peer.checkpoint.Hash())
if len(events) == 0 {
return errInvalidCheckpoint
}