Client-Originated PIM Register beacon (implementation for RFC-22)#3959

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ben-malbeclabs wants to merge 13 commits into

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bc/rfc22-pim-register-impl

Commits on Jul 1, 2026

feat(pim): add PIM Register message serialization
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feat(pim): add RegisterSender beacon

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fix(pim): harden RegisterSender Close/UpdateGroups, conn cleanup, checksum test

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feat(api): add MulticastRpAddress to ProvisionRequest
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feat(services): start PIM Register beacon for multicast publishers

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feat(manager): wire RegisterWriter through CreateService and NetlinkManager

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feat(controller): permit PIM Register to the RP on publisher tunnels
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docs/test(pim,services): clarify Register buffer/port; assert beacon pub groups

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docs(changelog): note RFC-22 client PIM Register beacon + controller permit
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fix(manager): validate reconciler-built ProvisionRequest so MulticastRpAddress defaults

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fix(multicast): update heartbeat_test to exported HeartbeatPayload

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style(pim): gofmt register_test.go

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test(e2e): add PIM Register permit to agent config fixtures

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