gurixandClaude Opus 4.6
6610366c2f
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
116 lines
9.5 KiB
Markdown
116 lines
9.5 KiB
Markdown
---
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phase: 07-custom-rules-and-print-config
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verified: 2026-03-26T21:10:00Z
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status: passed
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score: 10/10 must-haves verified
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---
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# Phase 7: Custom Rules and Print-Config Verification Report
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**Phase Goal:** Users can define their own traffic classification rules in TOML, assign custom sounds to them, and inspect the full effective config before capture begins
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**Verified:** 2026-03-26T21:10:00Z
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**Status:** passed
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**Re-verification:** No — initial verification
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## Goal Achievement
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### Observable Truths
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| # | Truth | Status | Evidence |
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|---|-------|--------|---------|
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| 1 | TOML `[[rules]]` blocks parse into `classify.Rule` slices | VERIFIED | `convertRules()` in config.go:192-206; `TestLoadCustomRules` passes; `TestLoadCustomRuleNoPort` passes |
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| 2 | Missing protocol or class in a rule produces a clear error at startup | VERIFIED | `validateRules()` in config.go:175-189; `TestLoadCustomRuleMissingProtocol`, `TestLoadCustomRuleMissingClass`, `TestLoadCustomRuleInvalidProtocol` all pass |
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| 3 | User rules are returned separately from FreqCfgs for caller to prepend | VERIFIED | `LoadResult.UserRules []classify.Rule` field in config.go:48-52; `TestUserRulesPrepend` passes |
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| 4 | New class names without explicit sound config get auto-assigned frequencies in 1200-2400 Hz range | VERIFIED | `autoAssignFreq()` in config.go:210-219 uses FNV-32a; range [1200, 2350]; `TestAutoFreqAssignment` and `TestAutoFreqDeterministic` pass |
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| 5 | Built-in class names in user rules do not get overwritten by auto-freq | VERIFIED | `addAutoFreqEntries()` checks `if _, exists := cfgs[rule.Class]; !exists` before assigning; `TestAutoFreqSkipsBuiltins` verifies HTTPS stays at 175.0 Hz |
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| 6 | User runs `netsynth --print-config` and sees full effective config as commented TOML on stdout without capture starting | VERIFIED | `runPrintConfig()` in main.go:114-122; `if printConfig` check at main.go:73 fires before interface-required validation; `TestPrintConfigNoInterface` passes |
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| 7 | User rules prepend before built-in rules so first-match-wins gives user priority | VERIFIED | `append(result.UserRules, classify.DefaultRules...)` in both `runLiveMode` (main.go:139) and `runPcapMode` (main.go:205); `TestUserRulesPrepend` confirms prepend order |
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| 8 | Print-config output shows source path when config file loaded | VERIFIED | `PrintConfig()` emits `# Config source: <path>` when `result.ConfigPath != ""`; `TestPrintConfigSourcePath` passes |
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| 9 | Print-config output annotates defaults vs overrides vs auto-assigned | VERIFIED | `classAnnotation()` in config.go:340-353 returns "default", "override", or "auto-assigned"; `TestPrintConfigDefaultAnnotation`, `TestPrintConfigOverrideAnnotation`, `TestPrintConfigAutoAssignedAnnotation` all pass |
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| 10 | Print-config output includes `[[rules]]` section when user rules are present | VERIFIED | `PrintConfig()` emits `[[rules]]` section when `len(result.UserRules) > 0` (config.go:284-295); `TestPrintConfigContainsRules` passes |
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**Score:** 10/10 truths verified
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### Required Artifacts
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| Artifact | Expected | Status | Details |
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|----------|----------|--------|---------|
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| `config/config.go` | RawRule, LoadResult, validateRules, convertRules, autoAssignFreq, addAutoFreqEntries, PrintConfig | VERIFIED | All 7 constructs present; file is 396 lines, fully substantive |
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| `config/config_test.go` | Tests for rule parsing, validation, auto-freq, LoadResult, PrintConfig | VERIFIED | 29 tests total (8 pre-existing + 13 Plan-01 + 8 Plan-02); all pass |
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| `cmd/netsynth/main.go` | --print-config flag, runPrintConfig(), user rule prepend | VERIFIED | Flag registered at main.go:49; runPrintConfig at main.go:114; prepend in both runLiveMode and runPcapMode |
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| `cmd/netsynth/main_test.go` | Tests for --print-config flag | VERIFIED | TestPrintConfigFlagRegistered, TestPrintConfigNoInterface, TestPrintConfigWithConfigFile all present and pass |
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### Key Link Verification
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| From | To | Via | Status | Details |
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|------|----|-----|--------|---------|
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| config/config.go | classify/rules.go | convertRules produces []classify.Rule | WIRED | `classify.Rule` used at lines 49, 78, 192-206, 225 — manual grep confirmed |
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| config/config.go | synth/config.go | autoAssignFreq creates FreqConfig entries with WaveformPresetHarmonics | WIRED | `synth.WaveformPresetHarmonics` called at lines 232, 384, 390 — manual grep confirmed |
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| cmd/netsynth/main.go | config/config.go | runPrintConfig calls config.Load then config.PrintConfig | WIRED | `config.PrintConfig(result)` at main.go:119 — manual grep confirmed |
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| cmd/netsynth/main.go | classify/rules.go | append(result.UserRules, classify.DefaultRules...) | WIRED | gsd-tools verified; pattern present at main.go:139 and main.go:205 |
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Note: gsd-tools key-link checker reported false negatives for the three pattern matches involving escaped dots (`\.`). All four links are confirmed present via manual grep.
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### Data-Flow Trace (Level 4)
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| Artifact | Data Variable | Source | Produces Real Data | Status |
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|----------|---------------|--------|--------------------|--------|
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| config/config.go PrintConfig | result.UserRules, result.FreqCfgs, result.AutoClasses | config.Load() parsing TOML + FNV-32a hash | Yes — real TOML parsing, classify.Rule slices, synth.FreqConfig map | FLOWING |
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| cmd/netsynth/main.go runLiveMode | allRules via result.UserRules | config.Load() -> convertRules() -> user TOML | Yes — user rules prepended to classify.DefaultRules | FLOWING |
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| cmd/netsynth/main.go runPcapMode | allRules via result.UserRules | config.Load() -> convertRules() -> user TOML | Yes — same prepend pattern as runLiveMode | FLOWING |
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### Behavioral Spot-Checks
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| Behavior | Command | Result | Status |
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|----------|---------|--------|--------|
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| config package: all 29 tests pass | `go test ./config/... -count=1` | ok (0.017s) | PASS |
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| cmd/netsynth package: all 13 tests pass | `go test ./cmd/netsynth/... -count=1` | ok (0.013s) | PASS |
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| Full test suite: all 7 packages | `go test ./... -count=1` | ok all 7 packages | PASS |
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| Static analysis | `go vet ./...` | no issues | PASS |
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| PrintConfig includes all 14 class names | TestPrintConfigContainsAllClasses | PASS | PASS |
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| --print-config works without -i | TestPrintConfigNoInterface | PASS | PASS |
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### Requirements Coverage
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| Requirement | Source Plan | Description | Status | Evidence |
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|-------------|-------------|-------------|--------|---------|
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| RULE-01 | 07-01 | User can define custom classification rules in TOML (match by port and/or protocol, assign class name) | SATISFIED | `RawRule` struct + `rawConfig.Rules []RawRule` + TOML `[[rules]]` parsing; TestLoadCustomRules and TestLoadCustomRuleNoPort verify parsing |
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| RULE-02 | 07-01, 07-02 | User-defined rules take priority over built-in rules (prepend before defaults) | SATISFIED | `append(result.UserRules, classify.DefaultRules...)` in both runLiveMode and runPcapMode; TestUserRulesPrepend verifies order |
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| RULE-03 | 07-01 | User-defined class names automatically get a synthesis layer (no silent gaps) | SATISFIED | `addAutoFreqEntries()` creates FreqConfig for unknown class names using FNV-32a in [1200, 2350] Hz; TestAutoFreqAssignment verifies entry exists with WaveformSine |
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| CFG-06 | 07-02 | User can run `netsynth --print-config` to see the effective config as commented TOML | SATISFIED | `--print-config` flag registered; `runPrintConfig()` calls config.Load + config.PrintConfig + fmt.Print; fires before interface-required check; TestPrintConfigNoInterface confirms no -i needed |
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**Orphaned requirements:** None. All four requirement IDs (RULE-01, RULE-02, RULE-03, CFG-06) are claimed by plan frontmatter and verified above. REQUIREMENTS.md traceability table confirms all four map to Phase 7.
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### Anti-Patterns Found
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| File | Line | Pattern | Severity | Impact |
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|------|------|---------|----------|--------|
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| (none) | — | — | — | — |
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No TODOs, FIXMEs, placeholder comments, empty return stubs, or hardcoded empty data found in modified files. The merge() function at config.go:368 does contain `return defaults` but returns the populated map after in-place mutation — this is correct behavior, not a stub.
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### Human Verification Required
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The following behaviors cannot be verified programmatically and require manual testing before production use:
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#### 1. End-to-End TOML Round-Trip
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**Test:** Create a `netsynth.toml` with multiple `[[rules]]` blocks (different ports, protocols, class names), run `netsynth --print-config`, copy the output to a new file, and load it again with `--print-config --config <copied-file>`.
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**Expected:** Output from both invocations should show the same class frequencies and annotations.
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**Why human:** Requires file creation, CLI invocation, and comparison of two output streams — not suitable for automated spot-check in a non-interactive environment.
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#### 2. Custom Rule Sound Differentiation
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**Test:** Create a TOML defining a custom rule for port 8080/tcp as "WebApp", run a capture or play a pcap with HTTP traffic on port 8080, and listen to the resulting MP3.
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**Expected:** Port 8080 traffic should produce a distinct tone from port 80 (HTTP) traffic.
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**Why human:** Requires audio playback and subjective listening — cannot be verified programmatically.
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### Gaps Summary
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No gaps. All 10 observable truths are verified, all 4 artifacts pass all three levels (exists, substantive, wired), all 4 key links are confirmed present in the code, all 4 requirements are satisfied, and the full test suite (7 packages, 29+ config tests, 13 main tests) passes cleanly.
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---
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_Verified: 2026-03-26T21:10:00Z_
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_Verifier: Claude (gsd-verifier)_
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