smartcontract: append new_interfaces vec to Device with custom serializer#3667
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smartcontract: append new_interfaces vec to Device with custom serializer#3667
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…izer Implements #3665 — the second step of the forward-compatible Interface refactor. `Device` gains a trailing `new_interfaces: Vec<NewInterface>` field after `max_multicast_publishers`. A custom `BorshSerialize` projects the legacy `interfaces` slot from `new_interfaces` (always as `Interface::V2` per #3653) and writes the new vec at the end of the layout. Older readers continue to parse the legacy slot at its existing offset; newer readers read the full forward-compat data from the trailing vec. `Device::TryFrom<&[u8]>` reads the trailing vec with `unwrap_or_default()` and, on legacy accounts (no trailing bytes), rebuilds `new_interfaces` from the legacy enum vec via per-variant `TryFrom`. Mutations route through `Device::replace_interface` / `push_interface` / `remove_interface` so both vecs stay in sync — the alternative ("project legacy from new_interfaces, ignore self.interfaces") would silently drop processor mutations on save. `find_interface` now returns `(usize, &NewInterface)`; `find_interface_legacy` is a temporary helper for unrelated callers (CLI commands and tests) that get migrated in subsequent issues. `MigrateDeviceInterfaces`'s V2→V3 byte-format expectation is invalidated by the always-V2 legacy projection; the corresponding test is `#[ignore]`d with a note for follow-up.
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## Summary
- Migrate
`device/interface/{create,update,activate,delete,reject,remove,unlink}`,
`link/{accept,activate,closeaccount,create,delete,update}`, and
`topology/backfill` processors to read and mutate
`Device::new_interfaces` directly, dropping all `into_current_version()`
/ `into_v3()` / `find_interface_legacy()` calls from `processors/`.
- `Device::push_interface` now takes a `NewInterface` directly, avoiding
a fallible `TryFrom<&InterfaceV2>` at the call site.
- `BackfillTopology` no longer mirrors `flex_algo_node_segments` into
the legacy in-memory `interfaces` vec — segments live only in
`new_interfaces` and are intentionally dropped on the V2-projected
on-disk legacy slot. The custom `Device::BorshSerialize` continues to
project `new_interfaces` → V2 for byte-compatibility with older readers.
- `Device::find_interface_legacy` is retained as scaffolding for CLI
callers; no `processors/` code calls it any more. CLI migration will
follow in a separate change.
Part of the forward-compatible Device interfaces refactor — depends on
#3666 and #3667. Closes #3658.
## Testing Verification
- New unit test
`test_flex_algo_segments_roundtrip_through_new_interfaces` (in
`state/device.rs`) seeds a Vpnv4 loopback with a populated
`flex_algo_node_segments`, round-trips through borsh, and asserts
segments survive in `new_interfaces` while the V2-projected legacy slot
drops them.
- Existing `test_topology_backfill_populates_vpnv4_loopbacks`
integration test continues to pass — it already asserted on
`device.new_interfaces[0].flex_algo_node_segments`, so removing the
legacy in-memory mirror is invisible to it.
- `make rust-fmt`, `make rust-lint`, and `make rust-test` all pass on
this branch.
- Sanity grep over `processors/` for legacy paths returns only the
out-of-scope `migrate_interfaces.rs`.
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## Summary - Migrate Rust read callers (CLI, sentinel, client, controlplane admin, Rust SDK topology helper) from `device.interfaces` to `device.new_interfaces`, and adopt the `Device::find_interface` signature that returns `&NewInterface`. - Drop `into_current_version()` / `into_v3()` calls at the migrated sites — `NewInterface` exposes the same field names directly. - Update `poll_for_device_interface_activated` to return `NewInterface` instead of `CurrentInterfaceVersion`. - Re-export `NewInterface` from the Rust SDK so CLI display structs can take `&NewInterface`. The legacy `interfaces` slot is still written on-disk via the per-write V2 projection from #3667; this PR only migrates reads. The temporary `Device::find_interface_legacy` helper is retained because the smartcontract program processors (`processors/link/*.rs`, `processors/device/interface/*.rs`) still depend on it; those migrate in a later issue. Activator is deliberately excluded — it is deprecated. Design: https://gist.github.com/elitegreg/e1d27c97034656a980fa8d7628ae16c5 Depends on #3667 Closes #3659 ## Testing Verification - `make rust-fmt`, `make rust-lint`, and `make rust-test` all pass on the branch. - Verified per-crate with `cargo test -p doublezero_cli -p doublezero-sentinel -p doublezero-admin -p doublezero -p doublezero_sdk -p doublezero-serviceability`. - Confirmed no remaining `device.interfaces` / `into_current_version` / `into_v3` reads in the migrated areas via `grep`. The smartcontract program (`smartcontract/programs/...`) and activator are intentionally untouched. - Test fixtures that previously set `interfaces: vec![CurrentInterfaceVersion {...}.to_interface()]` and `new_interfaces: vec![]` were inverted to populate `new_interfaces` (via `(&v2).try_into().unwrap()`) so the migrated read paths see the data.
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…3675) ## Summary - Delete the `MigrateDeviceInterfaces` instruction (variant 111), its processor, and integration tests. `Device::TryFrom<&[u8]>` (landed in #3667 / #3665) auto-promotes legacy `interfaces` into `new_interfaces` when the trailing vec is missing, and the next account write persists the promoted vec — so a standalone migrate step is no longer needed. - Reword two stale `MigrateDeviceInterfaces` doc comments in the Go SDK (`serviceability/deserialize.go`, `serviceability/state.go`); the Go SDK has no caller of this instruction, only stale references. - Add a `Smartcontract` bullet to the `Unreleased` CHANGELOG. This is the cleanup step in the forward-compatible Device interfaces refactor (design: https://gist.github.com/elitegreg/e1d27c97034656a980fa8d7628ae16c5, Design #5 final bullet). Stack: #3666 → #3667 → this PR. Closes #3662. ## Testing Verification - `make rust-fmt`, `make rust-lint`, and `cargo test -p doublezero-serviceability` all pass; legacy-account compatibility paths (`test_state_compatibility_device`, `test_device_legacy_account_rebuilds_new_vec`, `test_device_serialize_keeps_vecs_in_sync`) still cover the auto-promotion behavior that replaces this instruction. - `go build ./...` and `go vet ./...` pass for `smartcontract/sdk/go` after the comment rewrites. - Repo-wide `grep` for `MigrateDeviceInterfaces` / `migrate_device_interfaces` / `migrate_interfaces` returns only the (intentional) historical and new CHANGELOG entries.
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## Summary - Go, Python, and TypeScript serviceability SDKs now parse the trailing `new_interfaces` vec on `Device` introduced by #3665, with size-prefixed (u16 size + u8 version + body) forward-compat framing. - Empty trailing falls back to rebuilding `new_interfaces` from the legacy enum vec, matching the Rust device reader. Length mismatch between the legacy and trailing vecs is surfaced as an error: Python/TS raise; Go sets a sticky `Device.DeserializeError` field so the existing void-returning `DeserializeDevice` signature is preserved. - Bumps `CURRENT_INTERFACE_VERSION` / `CurrentInterfaceVersion` to `4` across the three SDKs to match Rust's `CURRENT_INTERFACE_SCHEMA_VERSION`. Closes #3660. Builds on #3666 / #3667. ## Testing Verification - Hand-built byte-vector tests added in each SDK covering: populated trailing vec, legacy account rebuild, declared-length mismatch, and future-version skip. - `make sdk-test` — all SDK suites green (Go: serviceability + borsh-incremental + revdist; Python: 119 passed; TypeScript: 142 passed across 5 files). - Cross-language framing assertion: empty-name body length is 42 bytes, so on-disk `size` for an empty-name V4 element is 45 — verified in all three test files. - Fixture-driven coverage is deferred to the follow-up fixtures issue per #3660.
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…ts (#3676) ## Summary - Regenerates `sdk/serviceability/testdata/fixtures/device.{bin,json}` through Device's custom Borsh serializer (post-#3667 on-disk shape) with a populated `new_interfaces` vec: one Vpnv4 loopback carrying a `FlexAlgoNodeSegment`, one physical user-tunnel-endpoint. The legacy `interfaces` slot is now the V2 projection of `new_interfaces` (always V2 per #3653), so the fixture exercises the populated-trailing-vec read path. - Adds `device_legacy.{bin,json}` — pre-#3667 byte shape with only the legacy `interfaces` vec populated and no trailing bytes. SDKs detect the absent trailing vec and rebuild `new_interfaces` from the legacy enum vec, stamping each entry with `Version=CURRENT_INTERFACE_VERSION` and `Size=0`. - Adds `device_future_version.{bin,json}` — same shape as `device.bin`, but the **last** trailing-vec element is doctored to `version=5` with `size += 8` and 8 `0xAB` filler bytes appended at end-of-file. SDKs read the known body fields, then `seek(start + size)` over the junk. - Adds Go fixture-driven tests (`smartcontract/sdk/go/serviceability/fixture_test.go`) — first fixture-loader for the Go serviceability SDK, mirroring the pattern in `sdk/revdist/go/fixture_test.go`. Extends Python/TS fixture tests to cover all three Device fixtures. - Drive-by: `link.bin` (+3 bytes) and `sdk/telemetry/testdata/fixtures/generate-fixtures/Cargo.lock` are pre-existing fixture rot picked up by `make generate-fixtures`. Closes #3661. Depends on #3673 (size-prefixed Interface readers, already merged). ## Testing Verification - `cd sdk/serviceability/testdata/fixtures/generate-fixtures && cargo run` regenerates all fixtures deterministically. - `go test ./smartcontract/sdk/go/serviceability/...` — `TestFixtureDevice`, `TestFixtureDeviceLegacy`, `TestFixtureDeviceFutureVersion` all green. - `cd sdk/serviceability/python && uv run pytest serviceability/tests/test_fixtures.py` — 16 tests pass, including the three new Device test classes. - `cd sdk/serviceability/typescript && bun test serviceability/tests/fixtures.test.ts` — 16 tests pass, including the new "Device legacy" and "Device future-version" describe blocks. - Verified `xxd device_future_version.bin | tail` shows the doctored `0x05` version byte and 8x `0xAB` filler at end-of-file; trailing-element `size` is `original + 8` exactly.
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Summary
Implements #3665 — second step of the forward-compatible Interface refactor. Branched off
gm/issue-3657-new-interface-struct(#3666 / forward-compatNewInterfacestruct).new_interfaces: Vec<NewInterface>toDeviceaftermax_multicast_publishers.BorshSerializeforDeviceprojects the legacy on-diskinterfacesslot fromnew_interfaces(alwaysInterface::V2per smartcontract: revert default Interface to V2; keep V3 for migrate/backfill #3653) and writes the new vec at the end of the layout. Older readers continue to parse the legacy slot at its existing offset.Device::TryFrom<&[u8]>reads the trailing vec withunwrap_or_default(); legacy accounts (no trailing bytes) getnew_interfacesrebuilt from the legacy enum vec via per-variantTryFrom(V3 projected through V2;flex_algo_node_segmentsalready empty post-migrate).find_interfacereturns(usize, &NewInterface);find_interface_legacyis a temporary helper that returns the V2 projection for unrelated callers (CLI commands, tests) — those migrate tofind_interfacein subsequent issues.Device::replace_interface/push_interface/remove_interfacehelpers to keep both vecs in sync. Without this, the always-V2 legacy projection would silently drop processor-side mutations todevice.interfaceson save. Backfill additionally mirrorsflex_algo_node_segmentsintonew_interfaces(the V2-projected legacy slot doesn't carry segments).Deviations from the issue
new_interfacesmakes processor mutations todevice.interfacesinvisible on save. This PR therefore introduces minimalreplace_interface/push_interface/remove_interfacehelpers and routes existing processors (linkaccept/activate/closeaccount/create/delete/update, device interfaceactivate/create/delete/reject/remove/unlink/update, topologybackfill,migrate_interfaces) through them.MigrateDeviceInterfaces's V2→V3 byte-format expectation is invalidated by the always-V2 projection;test_migrate_device_interfaces_legacy_accountis#[ignore]d with a note. Migrate semantics need a follow-up to either bypass the projection on this admin path or to drop the V3 byte-format guarantee in favor of thenew_interfacestrailing slot.Tests
test_device_serialize_keeps_vecs_in_sync(round-trips a Device with N entries; legacy and new vecs match length and per-element name).test_device_legacy_account_rebuilds_new_vec(hand-serializes a Device omitting the trailing vec;Device::try_fromrebuildsnew_interfacesfrom the legacy vec).test_device_skips_future_interface_in_new_vec(forges aversion=5element with junk bytes inside its size envelope at the head of the trailing slot; the size-prefixed reader skips past unknown trailing bytes and surfaces both elements).test_state_device_serializationandtest_topology_backfill_*for the new source-of-truth innew_interfaces.test_state_compatibility_devicecontinues to pass, now exercising the legacy fallback rebuild path.Testing Verification
make rust-fmt && make rust-lint && make rust-testall pass.test_topology_backfill_populates_vpnv4_loopbacks) verified end-to-end after the V3→V2 projection change: backfill is now idempotent againstnew_interfacesrather than the legacy slot.Notes for the reviewer
find_interfacecall sites intests/and insmartcontract/cli/src/device/interface/{delete,update}.rscontinue to usefind_interface_legacy; per the issue these migrate in subsequent PRs.new_interfaces) requires every processor mutation to also touchnew_interfacesto avoid data loss. Splitting that into a separate PR would leave main in a broken state mid-stack.