FOCIL tracker

[nflaig]

EIP-7805: Fork-choice enforced Inclusion Lists (FOCIL) tracker

Validator client

• inclusing list service
  • retrieve, sign and broadcast inclusion lists
• inclusing list duties service
  • poll duties from beacon node
  • keep track of duties
• update validator store
  • construct a signed inclusion list
  • get_inclusion_list_signature
• update remote signer client

Beacon api

• retrieve unsigned inclusion list to be signed
• submit signed inclusion list to be broadcast
• retrieve inclusion list duties
• inclusion_list event
• retrieve inclusion lists from op pool (optional)

Beacon chain

• new ssz types / containers
• new spec constants
• inclusion lists op pool / cache
• add get_inclusion_committee_assignment
• add get_inclusion_list_committee
• add is_valid_inclusion_list_signature
• add IL to new payload request to EL
• forward received inclusion lists to EL for proposal until cutoff
• retrieve IL transactions from EL and create InclusionList to sign over

Fork choice

• track seen inclusion lists and equivocators
• modify notify_new_payload
• add get_attester_head to be used for attestations and sync committee message
• import signed inclusion lists in fork choice store (on_inclusion_list)
• call engine api to validate IL (validate_inclusion_lists)

Gossipsub / p2p

• new gossipsub topic inclusion_list
• gossip verification
• track equivocations
• forward IL gossip messages (max 2 messages per validator index)

Execution engine

• define new engine api methods
  • add engine_newPayloadV5
  • add engine_getInclusionListV1
  • add engine_forkchoiceUpdatedV4

Beacon metrics

• add required metrics
• update dashboard