bolt07: explicit that the peer may fail the connection if wrong chain_hash in query_messages #678
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The behavior was already described in the rationale, this explicits it. This adds a restriction for 'reply_channel_range' which is implied by the fact of not maintaining up-to-date informations (for this 'chain').
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This was referenced Oct 1, 2019
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This finally does not seem to be a good idea, as we are going to use the |
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In the
query_messages, the node receiving the query (query_[channel_range/short_channel_ids]) will set thecompleteflag to0in the reply if it does not maintain up-to-date informations about the network specified in the requestchain_hash. If this is the case then it's not an interesting node for the initial peer, which may fail the connection.This explicits a constraints on the
reply_channel_rangethat is implied to not have any information in the first place (to set thelenof the list of scds to0). This is a modification of aMUSTbut we already do this for C-lightning, and (really not sure though) I don't think Eclair and LND even send a reply withcompleteto0on badchain_hash? (https:/lightningnetwork/lnd/blob/2dd23819bb0b24d1ece97057d7c469efb9e1d844/discovery/syncer.go#L809, https:/ACINQ/eclair/blob/b5461b80c83b3500449d5593afdce1d660e4aeb8/eclair-core/src/main/scala/fr/acinq/eclair/router/Router.scala#L584)