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lnwire: add lnwire.OpaqueAddr case in WriteElement for channel back-ups#9856

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guggero merged 4 commits intolightningnetwork:masterfrom
ellemouton:writeOpaqueAddr
May 26, 2025
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lnwire: add lnwire.OpaqueAddr case in WriteElement for channel back-ups#9856
guggero merged 4 commits intolightningnetwork:masterfrom
ellemouton:writeOpaqueAddr

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Fix a serialisation bug that would occur when an attempt was made to write
a backup file for a channel peer that has advertised an address that we do
not yet know how to parse.

The WriteElement method did not have a type for the new lnwire.OpaqueAddr type. WriteElement is only used for addresses from within chanbackup and so if a node has a channel peer that is advertising an address that we dont know how to parse yet, we would let it be an lnwire.OpaqueAddr type and this would then error out when we try to make a static chan backup for that peer.

Use existing serialisation helpers for serialising TC Pand Onion
addresses in WriteElement.
And then expand the chanbackup unit tests to cover such a case.
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@ellemouton ellemouton changed the title Write opaque addr lnwire: add lnwire.OpaqueAddr case in WriteElement for channel back-ups May 23, 2025
@ellemouton ellemouton self-assigned this May 23, 2025
@ellemouton ellemouton added this to the v0.19.1 milestone May 23, 2025
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@ziggie1984 ziggie1984 left a comment

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LGTM

@@ -0,0 +1,88 @@
# Release Notes
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Nit: release notes also contain other PRs as new.

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indeed - removed!

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@yyforyongyu yyforyongyu left a comment

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Thank you for the fix🌹🌹🌹

@guggero guggero merged commit 5c324c7 into lightningnetwork:master May 26, 2025
36 of 38 checks passed
@ellemouton ellemouton deleted the writeOpaqueAddr branch May 26, 2025 07:02
pinheadmz added a commit to Jhoyola/warnet that referenced this pull request Feb 27, 2026
pinheadmz added a commit to Jhoyola/warnet that referenced this pull request Feb 27, 2026
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4 participants