Set custom tlvs to update_add_htlc via the htlc_accepted_hook
#8433
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nepet
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We currently only consider known tlv types in the internal representation of a htlc. This commit adds the remaining unknown tlv fields to the htlc as well. This is in prepareation to forward these to the htlc_accepted_hook. Signed-off-by: Peter Neuroth <[email protected]>
This appends the extra_tlvs to the internal wire htlcs "added" and "existing" for the extra tlvs to be handed to lightningd. Signed-off-by: Peter Neuroth <[email protected]>
This appends the extra_tlvs to the internal channeld_offer_htlc wire msg. We also recombine the extra_tlvs with the blinded path key for forwarding htlcs. Signed-off-by: Peter Neuroth <[email protected]>
Add serializing and deserializing of the extra tlvs to to the htlc_accepted_hook to allow plugin users to replace the tlv stream that is attached to the update_add_htlc message on forwards. Signed-off-by: Peter Neuroth <[email protected]>
Adds some testcases for custom tlvs, set by a htlc_accepted_hook. We check that the custom tlvs replace the update_add_htlc_tlvs and get forwarded to the peer. We also check that a malformed tlv will result in a **BROKEN** behaviour. Signed-off-by: Peter Neuroth <[email protected]>
Changelog-Added: The `htlc_accepted_hook` now gets the TLV-stream attached to the HTLC passed through as `extra_tlvs` and can replace it. Signed-off-by: Peter Neuroth <[email protected]>
There was a problem with a ‘highlight’ that was misunderstood as a spelling mistake in lib-wally. Since ‘hightlight’ is already filtered out, we simply instruct grep to ignore upper/lower case when filtering. Signed-off-by: Peter Neuroth <[email protected]>
The rare case happened where a lockfile sha-sum contained a "Ctlv" which spell-check complained about. Stupid lockfiles that don't know it is actually "cltv"! Signed-off-by: Peter Neuroth <[email protected]>
nepet
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this PR is necessary for LSPS2 - doesn't conclude LSPS2. |
madelinevibes
requested review from
cdecker and
rustyrussell
and removed request for
cdecker
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Important
25.09 FREEZE July 28TH: Non-bugfix PRs not ready by this date will wait for 25.12.
RC1 is scheduled on August 11th
The final release is scheduled for September 1st.
Checklist
Before submitting the PR, ensure the following tasks are completed. If an item is not applicable to your PR, please mark it as checked:
This PR allows plugins that registered to th
htlc_accepted_hookto get and replace the TLV-streamupdate_add_htlc_tlvsattached to incommingupdate_add_htlcmessages, adding a new HTLC.If a plugin want's to replace the TLV-stream with custom TLVS, it needs to return
{ "result": "continue", "extra_tlvs": [hex-encoded string] }Specifying
extra_tlvswill replace the TLV-stream attached to the HTLC (also the blinding path-key) and will be - in case of a forward - forwarded as theupdate_add_htlc_tlvsto the peer.This PR is a necessary precondition to implement the LSPS2 protocol and Resolves #6663