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draft: Upfront Fees to Mitigate Channel Jamming #1052

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wants to merge 9 commits into from
Closed

draft: Upfront Fees to Mitigate Channel Jamming #1052

wants to merge 9 commits into from

Commits on Jan 18, 2023

  1. proposals: channel jamming mitigation 

    This commit adds a proposal summarizing the problem of channel
jamming in lightning and proposing a combined approach using upfront
fees and local reputation tracking. The details of local reputation
tracking will be covered in a follow up PR.

Co-authored-by: Clara Shikhelman <clara.shikhelman@gmail.com>
    @carlaKC @ClaraShk
    carlaKC and ClaraShk committed Jan 18, 2023
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  2. features: add option upfront fee 

    Upfront fees will require feature bit signaling because nodes need
to know that their peers understand how to update their channel
state machine with this new protocol feature.
    @carlaKC
    carlaKC committed Jan 18, 2023
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  3. bolt07: advertise upfront fee policies in channel_update 

    Add the ability for nodes to advertise custom fee policies. A default
value of 1% (for nodes that advertise that they understand the feature
bit) is used to save the network the resources consumed relaying
defaults. The TLV extension is odd to ensure that old nodes can still
parse the extended gossip.
    @carlaKC
    carlaKC committed Jan 18, 2023
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  4. bolt11: add upfront fee policy for final hop to invoice 

    TODO: routing hints will also need updating
    @carlaKC
    carlaKC committed Jan 18, 2023
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  5. bolt2: add upfront_fee to update_add_htlc TLVs

    @carlaKC
    carlaKC committed Jan 18, 2023
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  6. bolt03: include upfront fees in to_local and to_remote balances

    @carlaKC
    carlaKC committed Jan 18, 2023
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  7. bolt04: add upfront fee to onion routing payload

    @carlaKC
    carlaKC committed Jan 18, 2023
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  8. bolt04: add error for insufficient upfront fee for forwarding nodes

    @carlaKC
    carlaKC committed Jan 18, 2023
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  9. bolt04: add final incorrect upfront fee for last hop

    @carlaKC
    carlaKC committed Jan 18, 2023
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