From df5fea717be0573248a0f359bc4a221ec05cc544 Mon Sep 17 00:00:00 2001 From: Markus Graf Date: Wed, 25 Mar 2026 12:14:33 +0100 Subject: [PATCH] docs(01-01): complete bootstrap and protocol classification plan - Add 01-01-SUMMARY.md documenting outcomes, commits, and decisions - STATE.md: advance to plan 2/4, record metrics, add key decisions - ROADMAP.md: update phase 1 progress (1/4 plans complete) - REQUIREMENTS.md: mark CLAS-01 complete --- .planning/REQUIREMENTS.md | 4 +- .planning/ROADMAP.md | 6 +- .planning/STATE.md | 20 +-- .../01-01-SUMMARY.md | 129 ++++++++++++++++++ 4 files changed, 146 insertions(+), 13 deletions(-) create mode 100644 .planning/phases/01-capture-and-classification/01-01-SUMMARY.md diff --git a/.planning/REQUIREMENTS.md b/.planning/REQUIREMENTS.md index 6e5d34c..033ec6c 100644 --- a/.planning/REQUIREMENTS.md +++ b/.planning/REQUIREMENTS.md @@ -18,7 +18,7 @@ Requirements for initial release. Each maps to roadmap phases. ### Traffic Classification -- [ ] **CLAS-01**: Known protocols (ICMP, DNS, TCP/443, TCP/other, UDP, SSH) each produce a distinct recognizable sound +- [x] **CLAS-01**: Known protocols (ICMP, DNS, TCP/443, TCP/other, UDP, SSH) each produce a distinct recognizable sound - [ ] **CLAS-02**: Unrecognized traffic is auto-clustered and assigned unique tones automatically - [ ] **CLAS-03**: On exit, user sees a summary of packet counts and protocol breakdown (printed to stderr) - [ ] **CLAS-04**: User can enable per-window protocol activity log via `--verbose` flag @@ -72,7 +72,7 @@ Which phases cover which requirements. Updated during roadmap creation. | CAPT-04 | Phase 1 | Pending | | CAPT-05 | Phase 4 | Pending | | CAPT-06 | Phase 4 | Pending | -| CLAS-01 | Phase 1 | Pending | +| CLAS-01 | Phase 1 | Complete | | CLAS-02 | Phase 3 | Pending | | CLAS-03 | Phase 1 | Pending | | CLAS-04 | Phase 1 | Pending | diff --git a/.planning/ROADMAP.md b/.planning/ROADMAP.md index 3e8fa09..2703e65 100644 --- a/.planning/ROADMAP.md +++ b/.planning/ROADMAP.md @@ -29,10 +29,10 @@ Decimal phases appear between their surrounding integers in numeric order. 3. User running without root/CAP_NET_RAW sees a clear error message with a `sudo` hint — not a panic or silent failure 4. On exit, user sees a per-protocol packet count summary printed to stderr 5. User can pass `--verbose` and see per-window protocol activity lines on stderr -**Plans:** 4 plans +**Plans:** 1/4 plans executed Plans: -- [ ] 01-01-PLAN.md — Go 1.24 setup, module init, shared types, config-driven classifier with tests +- [x] 01-01-PLAN.md — Go 1.24 setup, module init, shared types, config-driven classifier with tests - [ ] 01-02-PLAN.md — Capture package: OpenCapture, ListInterfaces, privilege error handling - [ ] 01-03-PLAN.md — Aggregation: time-windowed accumulator, exit summary, verbose output - [ ] 01-04-PLAN.md — CLI wiring: Cobra commands, signal handling, pipeline assembly, smoke test @@ -77,7 +77,7 @@ Phases execute in numeric order: 1 → 2 → 3 → 4 | Phase | Plans Complete | Status | Completed | |-------|----------------|--------|-----------| -| 1. Capture and Classification | 0/4 | Planning complete | - | +| 1. Capture and Classification | 1/4 | In Progress| | | 2. Audio Synthesis Engine | 0/? | Not started | - | | 3. Pipeline Integration and MVP | 0/? | Not started | - | | 4. Power User Features | 0/? | Not started | - | diff --git a/.planning/STATE.md b/.planning/STATE.md index 30705fb..631ad8d 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -2,14 +2,14 @@ gsd_state_version: 1.0 milestone: v1.0 milestone_name: milestone -status: Executing Phase 01 -stopped_at: Phase 1 context gathered -last_updated: "2026-03-25T11:08:08.766Z" +status: Ready to execute +stopped_at: Completed 01-01-PLAN.md +last_updated: "2026-03-25T11:14:18.823Z" progress: total_phases: 4 completed_phases: 0 total_plans: 4 - completed_plans: 0 + completed_plans: 1 --- # Project State @@ -24,7 +24,7 @@ See: .planning/PROJECT.md (updated 2026-03-24) ## Current Position Phase: 01 (capture-and-classification) — EXECUTING -Plan: 1 of 4 +Plan: 2 of 4 ## Performance Metrics @@ -46,6 +46,7 @@ Plan: 1 of 4 - Trend: — *Updated after each plan completion* +| Phase 01 P01 | 4 | 2 tasks | 6 files | ## Accumulated Context @@ -59,6 +60,9 @@ Recent decisions affecting current work: - Use `github.com/sjzar/go-lame` v0.0.9 for MP3 encoding (embeds LAME C source, CGo required at build time only) - Audio synthesis: hand-rolled additive sine oscillators + EMA amplitude smoothing (no external audio library) - Frequency table: register-separated harmonics (low drones = bulk traffic, mid = control, high = interactive) +- [Phase 01]: Go installed to /home/dev/tools/go-install/go (no sudo); PATH export required each session +- [Phase 01]: Classifier uses ordered []Rule slice with first-match-wins; no switch statement (D-02) +- [Phase 01]: ICMP checked before TCP/UDP in Classify to handle packets with no port info ### Pending Todos @@ -72,6 +76,6 @@ None yet. ## Session Continuity -Last session: 2026-03-25T10:14:54.587Z -Stopped at: Phase 1 context gathered -Resume file: .planning/phases/01-capture-and-classification/01-CONTEXT.md +Last session: 2026-03-25T11:14:18.816Z +Stopped at: Completed 01-01-PLAN.md +Resume file: None diff --git a/.planning/phases/01-capture-and-classification/01-01-SUMMARY.md b/.planning/phases/01-capture-and-classification/01-01-SUMMARY.md new file mode 100644 index 0000000..515f788 --- /dev/null +++ b/.planning/phases/01-capture-and-classification/01-01-SUMMARY.md @@ -0,0 +1,129 @@ +--- +phase: 01-capture-and-classification +plan: 01 +subsystem: classification +tags: [go, gopacket, protocol-classification, tdd, packet-capture] + +# Dependency graph +requires: [] +provides: + - "Go 1.24.1 module initialized (github.com/netsynth/netsynth)" + - "classify/types.go: TrafficClass (11 constants), ClassifiedPacket, WindowSnapshot shared types" + - "classify/rules.go: Rule struct and DefaultRules slice with 12 ordered protocol rules" + - "classify/classifier.go: Classifier with NewClassifier and Classify(gopacket.Packet) methods" + - "Unit tests for all 11 traffic classes, 14 test cases, all passing" +affects: + - 01-capture-and-classification + - 02-audio-synthesis + - 03-clustering + +# Tech tracking +tech-stack: + added: + - "github.com/gopacket/gopacket v1.5.0 — packet decode and layer type assertions" + - "github.com/packetcap/go-pcap v0.0.0-20251215 — in go.sum for Phase 1 capture plan" + - "github.com/spf13/cobra v1.10.2 — in go.sum for Phase 1 CLI plan" + patterns: + - "Config-driven rule slice (not switch) for classification — per D-02" + - "First-match-wins rule evaluation over ordered []Rule slice" + - "Classifier struct accepting rules at construction for testability" + - "test package (classify_test) using gopacket SerializeLayers for synthetic packet construction" + +key-files: + created: + - "classify/types.go — TrafficClass, ClassifiedPacket, WindowSnapshot shared contracts" + - "classify/rules.go — Rule struct, DefaultRules with 12 ordered protocol rules" + - "classify/classifier.go — Classifier, NewClassifier, Classify method" + - "classify/classifier_test.go — 14 test cases covering all 11 traffic classes" + - "go.mod — module github.com/netsynth/netsynth, go 1.24.1" + - "go.sum — all dependency checksums" + modified: [] + +key-decisions: + - "Go installed at /home/dev/tools/go-install/go (no sudo available) — export PATH=$PATH:/home/dev/tools/go-install/go/bin required" + - "DefaultRules uses ordered slice with DstPort=0 as catch-all — enables first-match-wins without switch" + - "ICMP checked before TCP/UDP in Classify to handle ICMP packets that decode no port" + - "go mod tidy removes go-pcap and cobra from go.mod until they are imported in later plans" + +patterns-established: + - "Classifier struct pattern: NewClassifier(rules []Rule) accepts rules at construction, enabling custom rules in tests" + - "Synthetic packet construction: gopacket SerializeLayers with Ethernet+IPv4+TCP/UDP/ICMP layers" + +requirements-completed: [CLAS-01] + +# Metrics +duration: 4min +completed: 2026-03-25 +--- + +# Phase 01 Plan 01: Bootstrap and Protocol Classification Engine Summary + +**Config-driven packet classifier with 12 protocol rules identifying ICMP, DNS, HTTPS, HTTP, SSH, SMTP, NTP, DHCP, other-TCP, other-UDP, and unknown traffic via ordered []Rule slice** + +## Performance + +- **Duration:** 4 min +- **Started:** 2026-03-25T11:09:11Z +- **Completed:** 2026-03-25T11:13:13Z +- **Tasks:** 2 +- **Files modified:** 6 + +## Accomplishments + +- Go 1.24.1 installed and module initialized with gopacket, go-pcap, and cobra dependencies +- 11 TrafficClass constants + ClassifiedPacket + WindowSnapshot types established as shared contracts for all downstream phases +- Config-driven classifier (no switch) with 12 ordered rules; first-match-wins; ICMP handled separately from TCP/UDP port matching +- All 14 TDD tests pass covering all 11 traffic classes and rule ordering behavior + +## Task Commits + +Each task was committed atomically: + +1. **Task 1: Install Go 1.24, initialize module, create shared types** - `15e8143` (feat) +2. **Task 2 RED: Failing tests for all 11 protocol classes** - `f233e80` (test) +3. **Task 2 GREEN: Config-driven classifier implementation** - `48ef6e5` (feat) +4. **Task 2 TIDY: go mod tidy after imports added** - `25e0dc3` (chore) + +_Note: TDD task had test commit (RED) then feat commit (GREEN), plus a tidy cleanup._ + +## Files Created/Modified + +- `classify/types.go` - TrafficClass (11 constants), ClassifiedPacket, WindowSnapshot, AllClasses() +- `classify/rules.go` - Rule struct, DefaultRules slice with 12 ordered protocol rules +- `classify/classifier.go` - Classifier struct, NewClassifier, Classify method (no switch) +- `classify/classifier_test.go` - 14 test cases, 243 lines, all protocol classes covered +- `go.mod` - Module github.com/netsynth/netsynth, go 1.24.1, gopacket direct dep +- `go.sum` - All dependency checksums including go-pcap and cobra for future plans + +## Decisions Made + +- Go installed to `/home/dev/tools/go-install/go` (not /usr/local — no sudo access); PATH export needed in each shell session +- ICMP classification checked before TCP/UDP since ICMP has no ports — avoids the "no transport layer" fallthrough for valid ICMP packets +- `go mod tidy` trimmed go-pcap and cobra to indirect/removed since they have no code importing them yet; they will be re-added as direct deps when capture and CLI plans import them + +## Deviations from Plan + +None - plan executed exactly as written. The only operational difference was installing Go to `/home/dev/tools/go-install/go` instead of `/usr/local/go` due to lack of sudo access — functionality is identical. + +## Issues Encountered + +- No sudo access — Go 1.24.1 installed to `/home/dev/tools/go-install/go` instead of `/usr/local/go`. PATH must include `/home/dev/tools/go-install/go/bin` in each session. +- `go mod tidy` removes go-pcap and cobra from go.mod when no code imports them. This is expected Go behavior; these dependencies will become direct when imported in Plans 02-04. + +## User Setup Required + +None - no external service configuration required. Note that running `go` commands requires: +``` +export PATH=$PATH:/home/dev/tools/go-install/go/bin +``` + +## Next Phase Readiness + +- classify package is complete and compiles; all types are stable contracts for downstream phases +- Plan 01-02 (capture pipeline) can import classify and start building on top of ClassifiedPacket/WindowSnapshot +- Plan 01-03 (aggregation) can import WindowSnapshot directly +- No blockers + +--- +*Phase: 01-capture-and-classification* +*Completed: 2026-03-25*