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feat: QEMU ESP32-S3 testing platform + swarm configurator (ADR-061/062) (#260)

Browse source 
9-layer QEMU testing platform (ADR-061) and YAML-driven swarm
configurator (ADR-062) for ESP32-S3 firmware testing without hardware.

12 commits, 56 files, +9,500 lines. Tested on Windows with
Espressif QEMU 9.0.0 — firmware boots, mock CSI generates frames,
14/16 validation checks pass. 39 bugs found and fixed across
2 deep code reviews.

Closes #259

Co-Authored-By: claude-flow <ruv@ruv.net>
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355
.github/workflows/firmware-qemu.yml vendored Normal file
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name: Firmware QEMU Tests (ADR-061)
on:
push:
paths:
- 'firmware/**'
- 'scripts/qemu-esp32s3-test.sh'
- 'scripts/validate_qemu_output.py'
- 'scripts/generate_nvs_matrix.py'
- 'scripts/qemu_swarm.py'
- 'scripts/swarm_health.py'
- 'scripts/swarm_presets/**'
- '.github/workflows/firmware-qemu.yml'
pull_request:
paths:
- 'firmware/**'
- 'scripts/qemu-esp32s3-test.sh'
- 'scripts/validate_qemu_output.py'
- 'scripts/generate_nvs_matrix.py'
- 'scripts/qemu_swarm.py'
- 'scripts/swarm_health.py'
- 'scripts/swarm_presets/**'
- '.github/workflows/firmware-qemu.yml'
env:
IDF_VERSION: "v5.4"
QEMU_REPO: "https://github.com/espressif/qemu.git"
QEMU_BRANCH: "esp-develop"
jobs:
build-qemu:
name: Build Espressif QEMU
runs-on: ubuntu-latest
steps:
- name: Cache QEMU build
id: cache-qemu
uses: actions/cache@v4
with:
path: /opt/qemu-esp32
# Include date component so cache refreshes monthly when branch updates
key: qemu-esp32s3-${{ env.QEMU_BRANCH }}-v4
restore-keys: |
qemu-esp32s3-${{ env.QEMU_BRANCH }}-
- name: Install QEMU build dependencies
if: steps.cache-qemu.outputs.cache-hit != 'true'
run: |
sudo apt-get update
sudo apt-get install -y \
git build-essential ninja-build pkg-config \
libglib2.0-dev libpixman-1-dev libslirp-dev \
python3 python3-venv
- name: Clone and build Espressif QEMU
if: steps.cache-qemu.outputs.cache-hit != 'true'
run: |
git clone --depth 1 -b "$QEMU_BRANCH" "$QEMU_REPO" /tmp/qemu-esp
cd /tmp/qemu-esp
mkdir build && cd build
../configure \
--target-list=xtensa-softmmu \
--prefix=/opt/qemu-esp32 \
--enable-slirp \
--disable-werror
ninja -j$(nproc)
ninja install
- name: Verify QEMU binary
run: |
file_size() { stat -c%s "$1" 2>/dev/null || stat -f%z "$1" 2>/dev/null || wc -c < "$1"; }
/opt/qemu-esp32/bin/qemu-system-xtensa --version
echo "QEMU binary size: $(file_size /opt/qemu-esp32/bin/qemu-system-xtensa) bytes"
- name: Upload QEMU artifact
uses: actions/upload-artifact@v4
with:
name: qemu-esp32
path: /opt/qemu-esp32/
retention-days: 7
qemu-test:
name: QEMU Test (${{ matrix.nvs_config }})
needs: build-qemu
runs-on: ubuntu-latest
container:
image: espressif/idf:v5.4
strategy:
fail-fast: false
matrix:
nvs_config:
- default
- full-adr060
- edge-tier0
- edge-tier1
- tdm-3node
- boundary-max
- boundary-min
steps:
- uses: actions/checkout@v4
- name: Download QEMU artifact
uses: actions/download-artifact@v4
with:
name: qemu-esp32
path: /opt/qemu-esp32
- name: Make QEMU executable
run: chmod +x /opt/qemu-esp32/bin/qemu-system-xtensa
- name: Verify QEMU works
run: /opt/qemu-esp32/bin/qemu-system-xtensa --version
- name: Install Python dependencies
run: pip install esptool esp-idf-nvs-partition-gen
- name: Set target ESP32-S3
working-directory: firmware/esp32-csi-node
run: |
. $IDF_PATH/export.sh
idf.py set-target esp32s3
- name: Build firmware (mock CSI mode)
working-directory: firmware/esp32-csi-node
run: |
. $IDF_PATH/export.sh
idf.py \
-D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.qemu" \
build
- name: Generate NVS matrix
run: |
python3 scripts/generate_nvs_matrix.py \
--output-dir firmware/esp32-csi-node/build/nvs_matrix \
--only ${{ matrix.nvs_config }}
- name: Create merged flash image
working-directory: firmware/esp32-csi-node
run: |
. $IDF_PATH/export.sh
# Determine merge_bin arguments
OTA_ARGS=""
if [ -f build/ota_data_initial.bin ]; then
OTA_ARGS="0xf000 build/ota_data_initial.bin"
fi
python3 -m esptool --chip esp32s3 merge_bin \
-o build/qemu_flash.bin \
--flash_mode dio --flash_freq 80m --flash_size 8MB \
0x0 build/bootloader/bootloader.bin \
0x8000 build/partition_table/partition-table.bin \
$OTA_ARGS \
0x20000 build/esp32-csi-node.bin
file_size() { stat -c%s "$1" 2>/dev/null || stat -f%z "$1" 2>/dev/null || wc -c < "$1"; }
echo "Flash image size: $(file_size build/qemu_flash.bin) bytes"
- name: Inject NVS partition
if: matrix.nvs_config != 'default'
working-directory: firmware/esp32-csi-node
run: |
NVS_BIN="build/nvs_matrix/nvs_${{ matrix.nvs_config }}.bin"
if [ -f "$NVS_BIN" ]; then
file_size() { stat -c%s "$1" 2>/dev/null || stat -f%z "$1" 2>/dev/null || wc -c < "$1"; }
echo "Injecting NVS: $NVS_BIN ($(file_size "$NVS_BIN") bytes)"
dd if="$NVS_BIN" of=build/qemu_flash.bin \
bs=1 seek=$((0x9000)) conv=notrunc 2>/dev/null
else
echo "WARNING: NVS binary not found: $NVS_BIN"
fi
- name: Run QEMU smoke test
env:
QEMU_PATH: /opt/qemu-esp32/bin/qemu-system-xtensa
QEMU_TIMEOUT: "90"
run: |
echo "Starting QEMU (timeout: ${QEMU_TIMEOUT}s)..."
timeout "$QEMU_TIMEOUT" "$QEMU_PATH" \
-machine esp32s3 \
-nographic \
-drive file=firmware/esp32-csi-node/build/qemu_flash.bin,if=mtd,format=raw \
-serial mon:stdio \
-nic user,model=open_eth,net=10.0.2.0/24 \
-no-reboot \
2>&1 | tee firmware/esp32-csi-node/build/qemu_output.log || true
echo "QEMU finished. Log size: $(wc -l < firmware/esp32-csi-node/build/qemu_output.log) lines"
- name: Validate QEMU output
run: |
python3 scripts/validate_qemu_output.py \
firmware/esp32-csi-node/build/qemu_output.log
- name: Upload test logs
if: always()
uses: actions/upload-artifact@v4
with:
name: qemu-logs-${{ matrix.nvs_config }}
path: |
firmware/esp32-csi-node/build/qemu_output.log
firmware/esp32-csi-node/build/nvs_matrix/
retention-days: 14
fuzz-test:
name: Fuzz Testing (ADR-061 Layer 6)
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Install clang
run: |
sudo apt-get update
sudo apt-get install -y clang
- name: Build fuzz targets
working-directory: firmware/esp32-csi-node/test
run: make all CC=clang
- name: Run serialize fuzzer (60s)
working-directory: firmware/esp32-csi-node/test
run: make run_serialize FUZZ_DURATION=60 || echo "FUZZER_CRASH=serialize" >> "$GITHUB_ENV"
- name: Run edge enqueue fuzzer (60s)
working-directory: firmware/esp32-csi-node/test
run: make run_edge FUZZ_DURATION=60 || echo "FUZZER_CRASH=edge" >> "$GITHUB_ENV"
- name: Run NVS config fuzzer (60s)
working-directory: firmware/esp32-csi-node/test
run: make run_nvs FUZZ_DURATION=60 || echo "FUZZER_CRASH=nvs" >> "$GITHUB_ENV"
- name: Check for crashes
working-directory: firmware/esp32-csi-node/test
run: |
CRASHES=$(find . -type f \( -name "crash-*" -o -name "oom-*" -o -name "timeout-*" \) 2>/dev/null | wc -l)
echo "Crash artifacts found: $CRASHES"
if [ "$CRASHES" -gt 0 ] || [ -n "${FUZZER_CRASH:-}" ]; then
echo "::error::Fuzzer found $CRASHES crash/oom/timeout artifacts. FUZZER_CRASH=${FUZZER_CRASH:-none}"
ls -la crash-* oom-* timeout-* 2>/dev/null
exit 1
fi
- name: Upload fuzz artifacts
if: failure()
uses: actions/upload-artifact@v4
with:
name: fuzz-crashes
path: |
firmware/esp32-csi-node/test/crash-*
firmware/esp32-csi-node/test/oom-*
firmware/esp32-csi-node/test/timeout-*
retention-days: 30
nvs-matrix-validate:
name: NVS Matrix Generation
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Install NVS generator
run: pip install esp-idf-nvs-partition-gen
- name: Generate all 14 NVS configs
run: |
python3 scripts/generate_nvs_matrix.py \
--output-dir build/nvs_matrix
- name: Verify all binaries generated
run: |
EXPECTED=14
ACTUAL=$(find build/nvs_matrix -type f -name "nvs_*.bin" 2>/dev/null | wc -l)
echo "Generated $ACTUAL / $EXPECTED NVS binaries"
ls -la build/nvs_matrix/
if [ "$ACTUAL" -lt "$EXPECTED" ]; then
echo "::error::Only $ACTUAL of $EXPECTED NVS binaries generated"
exit 1
fi
- name: Verify binary sizes
run: |
file_size() { stat -c%s "$1" 2>/dev/null || stat -f%z "$1" 2>/dev/null || wc -c < "$1"; }
for f in build/nvs_matrix/nvs_*.bin; do
SIZE=$(file_size "$f")
if [ "$SIZE" -ne 24576 ]; then
echo "::error::$f has unexpected size $SIZE (expected 24576)"
exit 1
fi
echo " OK: $(basename $f) ($SIZE bytes)"
done
# ---------------------------------------------------------------------------
# ADR-062: QEMU Swarm Configurator Test
#
# Runs a lightweight 3-node swarm (ci_matrix preset) under QEMU to validate
# multi-node orchestration, TDM slot coordination, and swarm-level health
# assertions. Uses the pre-built QEMU binary from the build-qemu job and the
# firmware built by qemu-test.
#
# The CI runner is non-root, so TAP bridge networking is unavailable.
# The orchestrator (qemu_swarm.py) detects this and falls back to SLIRP
# user-mode networking, which is sufficient for the ci_matrix preset.
# ---------------------------------------------------------------------------
swarm-test:
name: Swarm Test (ADR-062)
needs: [build-qemu]
runs-on: ubuntu-latest
container:
image: espressif/idf:v5.4
steps:
- uses: actions/checkout@v4
- name: Download QEMU artifact
uses: actions/download-artifact@v4
with:
name: qemu-esp32
path: ${{ github.workspace }}/qemu-build
- name: Make QEMU executable
run: chmod +x ${{ github.workspace }}/qemu-build/bin/qemu-system-xtensa
- name: Install Python dependencies
run: pip install pyyaml esptool esp-idf-nvs-partition-gen
- name: Build firmware for swarm
working-directory: firmware/esp32-csi-node
run: |
. $IDF_PATH/export.sh
idf.py set-target esp32s3
idf.py -D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.qemu" build
python3 -m esptool --chip esp32s3 merge_bin \
-o build/qemu_flash.bin \
--flash_mode dio --flash_freq 80m --flash_size 8MB \
0x0 build/bootloader/bootloader.bin \
0x8000 build/partition_table/partition-table.bin \
0x20000 build/esp32-csi-node.bin
- name: Run swarm smoke test
run: |
python3 scripts/qemu_swarm.py --preset ci_matrix \
--qemu-path ${{ github.workspace }}/qemu-build/bin/qemu-system-xtensa \
--output-dir build/swarm-results
timeout-minutes: 10
- name: Upload swarm results
if: always()
uses: actions/upload-artifact@v4
with:
name: swarm-results
path: |
build/swarm-results/
retention-days: 14

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.vscode/launch.json vendored Normal file
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@ -0,0 +1,49 @@
{
"version": "0.2.0",
"configurations": [
{
"name": "QEMU ESP32-S3 Debug",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceFolder}/firmware/esp32-csi-node/build/esp32-csi-node.elf",
"cwd": "${workspaceFolder}/firmware/esp32-csi-node",
"MIMode": "gdb",
"miDebuggerPath": "xtensa-esp-elf-gdb",
"miDebuggerServerAddress": "localhost:1234",
"setupCommands": [
{
"description": "Set remote hardware breakpoint limit (ESP32-S3 has 2)",
"text": "set remote hardware-breakpoint-limit 2",
"ignoreFailures": false
},
{
"description": "Set remote hardware watchpoint limit (ESP32-S3 has 2)",
"text": "set remote hardware-watchpoint-limit 2",
"ignoreFailures": false
}
]
},
{
"name": "QEMU ESP32-S3 Debug (attach)",
"type": "cppdbg",
"request": "attach",
"program": "${workspaceFolder}/firmware/esp32-csi-node/build/esp32-csi-node.elf",
"cwd": "${workspaceFolder}/firmware/esp32-csi-node",
"MIMode": "gdb",
"miDebuggerPath": "xtensa-esp-elf-gdb",
"miDebuggerServerAddress": "localhost:1234",
"setupCommands": [
{
"description": "Set remote hardware breakpoint limit (ESP32-S3 has 2)",
"text": "set remote hardware-breakpoint-limit 2",
"ignoreFailures": false
},
{
"description": "Set remote hardware watchpoint limit (ESP32-S3 has 2)",
"text": "set remote hardware-watchpoint-limit 2",
"ignoreFailures": false
}
]
}
]
}

28
CHANGELOG.md
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@ -8,6 +8,34 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
## [Unreleased]
### Added
- **QEMU ESP32-S3 testing platform (ADR-061)** — 9-layer firmware testing without hardware
- Mock CSI generator with 10 physics-based scenarios (empty room, walking, fall, multi-person, etc.)
- Single-node QEMU runner with 16-check UART validation
- Multi-node TDM mesh simulation (TAP networking, 2-6 nodes)
- GDB remote debugging with VS Code integration
- Code coverage via gcov/lcov + apptrace
- Fuzz testing (3 libFuzzer targets + ASAN/UBSAN)
- NVS provisioning matrix (14 configs)
- Snapshot-based regression testing (sub-second VM restore)
- Chaos testing with fault injection + health monitoring
- **QEMU Swarm Configurator (ADR-062)** — YAML-driven multi-ESP32 test orchestration
- 4 topologies: star, mesh, line, ring
- 3 node roles: sensor, coordinator, gateway
- 9 swarm-level assertions (boot, crashes, TDM, frame rate, fall detection, etc.)
- 7 presets: smoke (2n/15s), standard (3n/60s), ci-matrix, large-mesh, line-relay, ring-fault, heterogeneous
- Health oracle with cross-node validation
- **QEMU installer** (`install-qemu.sh`) — auto-detects OS, installs deps, builds Espressif QEMU fork
- **Unified QEMU CLI** (`qemu-cli.sh`) — single entry point for all 11 QEMU test commands
- CI: `firmware-qemu.yml` workflow with QEMU test matrix, fuzz testing, NVS validation, and swarm test jobs
- User guide: QEMU testing and swarm configurator section with plain-language walkthrough
### Fixed
- Firmware now boots in QEMU: WiFi/UDP/OTA/display guards for mock CSI mode
- 9 bugs in mock_csi.c (LFSR bias, MAC filter init, scenario loop, overflow burst timing)
- 23 bugs from ADR-061 deep review (inject_fault.py writes, CI cache, snapshot log corruption, etc.)
- 16 bugs from ADR-062 deep review (log filename mismatch, SLIRP port collision, heap false positives, etc.)
- All scripts: `--help` flags, prerequisite checks with install hints, standardized exit codes
- **Sensing server UI API completion (ADR-043)** — 14 fully-functional REST endpoints for model management, CSI recording, and training control
- Model CRUD: `GET /api/v1/models`, `GET /api/v1/models/active`, `POST /api/v1/models/load`, `POST /api/v1/models/unload`, `DELETE /api/v1/models/:id`, `GET /api/v1/models/lora/profiles`, `POST /api/v1/models/lora/activate`
- CSI recording: `GET /api/v1/recording/list`, `POST /api/v1/recording/start`, `POST /api/v1/recording/stop`, `DELETE /api/v1/recording/:id`

80
README.md
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@ -75,7 +75,7 @@ docker run -p 3000:3000 ruvnet/wifi-densepose:latest
|----------|-------------|
| [User Guide](docs/user-guide.md) | Step-by-step guide: installation, first run, API usage, hardware setup, training |
| [Build Guide](docs/build-guide.md) | Building from source (Rust and Python) |
| [Architecture Decisions](docs/adr/README.md) | 49 ADRs — why each technical choice was made, organized by domain (hardware, signal processing, ML, platform, infrastructure) |
| [Architecture Decisions](docs/adr/README.md) | 62 ADRs — why each technical choice was made, organized by domain (hardware, signal processing, ML, platform, infrastructure) |
| [Domain Models](docs/ddd/README.md) | 7 DDD models (RuvSense, Signal Processing, Training Pipeline, Hardware Platform, Sensing Server, WiFi-Mat, CHCI) — bounded contexts, aggregates, domain events, and ubiquitous language |
| [Desktop App](rust-port/wifi-densepose-rs/crates/wifi-densepose-desktop/README.md) | **WIP** — Tauri v2 desktop app for node management, OTA updates, WASM deployment, and mesh visualization |
@ -1696,6 +1696,82 @@ WebSocket: `ws://localhost:3001/ws/sensing` (real-time sensing + vital signs)
</details>
<details>
<summary><strong>QEMU Firmware Testing (ADR-061) — 9-Layer Platform</strong></summary>
Test ESP32-S3 firmware without physical hardware using Espressif's QEMU fork. The platform provides 9 layers of testing capability:
| Layer | Capability | Script / Config |
|-------|-----------|-----------------|
| 1 | Mock CSI generator (10 physics-based scenarios) | `firmware/esp32-csi-node/main/mock_csi.c` |
| 2 | Single-node QEMU runner + UART validation (16 checks) | `scripts/qemu-esp32s3-test.sh`, `scripts/validate_qemu_output.py` |
| 3 | Multi-node TDM mesh simulation (TAP networking) | `scripts/qemu-mesh-test.sh`, `scripts/validate_mesh_test.py` |
| 4 | GDB remote debugging (VS Code integration) | `.vscode/launch.json` |
| 5 | Code coverage (gcov/lcov via apptrace) | `firmware/esp32-csi-node/sdkconfig.coverage` |
| 6 | Fuzz testing (libFuzzer + ASAN/UBSAN) | `firmware/esp32-csi-node/test/fuzz_*.c` |
| 7 | NVS provisioning matrix (14 configs) | `scripts/generate_nvs_matrix.py` |
| 8 | Snapshot regression (sub-second VM restore) | `scripts/qemu-snapshot-test.sh` |
| 9 | Chaos testing (fault injection + health monitoring) | `scripts/qemu-chaos-test.sh`, `scripts/inject_fault.py`, `scripts/check_health.py` |
```bash
# Quick start: build + run + validate
cd firmware/esp32-csi-node
idf.py -D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.qemu" build
# Single-node test (builds, merges flash, runs QEMU, validates output)
bash scripts/qemu-esp32s3-test.sh
# Multi-node mesh test (3 QEMU instances with TDM)
sudo bash scripts/qemu-mesh-test.sh 3
# Fuzz testing (60 seconds per target)
cd firmware/esp32-csi-node/test && make all CC=clang && make run_serialize FUZZ_DURATION=60
# Chaos testing (fault injection resilience)
bash scripts/qemu-chaos-test.sh --faults all --duration 120
```
**10 test scenarios**: empty room, static person, walking, fall, multi-person, channel sweep, MAC filter, ring overflow, boundary RSSI, zero-length frames.
**14 NVS configs**: default, WiFi-only, full ADR-060, edge tiers 0/1/2, TDM mesh, WASM signed/unsigned, 5GHz, boundary max/min, power-save, empty-strings.
**CI**: GitHub Actions workflow runs 7 NVS matrix configs, 3 fuzz targets, and NVS binary validation on every push to `firmware/`.
See [ADR-061](docs/adr/ADR-061-qemu-esp32s3-firmware-testing.md) for the full architecture.
</details>
<details>
<summary><strong>QEMU Swarm Configurator (ADR-062)</strong></summary>
Test multiple ESP32-S3 nodes simultaneously using a YAML-driven orchestrator. Define node roles, network topologies, and validation assertions in a config file.
```bash
# Quick smoke test (2 nodes, 15 seconds)
python3 scripts/qemu_swarm.py --preset smoke
# Standard 3-node test (coordinator + 2 sensors)
python3 scripts/qemu_swarm.py --preset standard
# See all presets
python3 scripts/qemu_swarm.py --list-presets
# Preview without running
python3 scripts/qemu_swarm.py --preset standard --dry-run
```
**Topologies**: star (sensors → coordinator), mesh (fully connected), line (relay chain), ring (circular).
**Node roles**: sensor (generates CSI), coordinator (aggregates), gateway (bridges to host).
**7 presets**: smoke, standard, ci-matrix, large-mesh, line-relay, ring-fault, heterogeneous.
**9 swarm assertions**: boot check, crash detection, TDM collision, frame production, coordinator reception, fall detection, frame rate, boot time, heap health.
See [ADR-062](docs/adr/ADR-062-qemu-swarm-configurator.md) and the [User Guide](docs/user-guide.md#testing-firmware-without-hardware-qemu) for step-by-step instructions.
</details>
<details>
<summary><strong>Python Legacy CLI</strong> — v1 API server commands</summary>
@ -1715,7 +1791,9 @@ wifi-densepose tasks list # List background tasks
<details>
<summary><strong>Documentation Links</strong></summary>
- [User Guide](docs/user-guide.md) — installation, first run, API, hardware setup, QEMU testing
- [WiFi-Mat User Guide](docs/wifi-mat-user-guide.md) | [Domain Model](docs/ddd/wifi-mat-domain-model.md)
- [ADR-061](docs/adr/ADR-061-qemu-esp32s3-firmware-testing.md) QEMU platform | [ADR-062](docs/adr/ADR-062-qemu-swarm-configurator.md) Swarm configurator
- [ADR-021](docs/adr/ADR-021-vital-sign-detection-rvdna-pipeline.md) | [ADR-022](docs/adr/ADR-022-windows-wifi-enhanced-fidelity-ruvector.md) | [ADR-023](docs/adr/ADR-023-trained-densepose-model-ruvector-pipeline.md)
</details>

174
docs/adr/ADR-061-qemu-esp32s3-firmware-testing.md
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@ -2,8 +2,8 @@
| Field | Value |
|-------------|------------------------------------------------|
| **Status** | Proposed |
| **Date** | 2026-03-13 |
| **Status** | Accepted |
| **Date** | 2026-03-13 (updated 2026-03-14) |
| **Authors** | RuView Team |
| **Relates** | ADR-018 (binary frame), ADR-039 (edge intel), ADR-040 (WASM), ADR-057 (build guard), ADR-060 (channel/MAC filter) |
@ -32,6 +32,98 @@ Currently, **every code change requires flashing to physical hardware** on COM7.
Espressif maintains an official QEMU fork (`github.com/espressif/qemu`) with ESP32-S3 machine support, including dual-core Xtensa LX7, flash mapping, UART, GPIO, timers, and FreeRTOS.
## Glossary
| Term | Definition |
|------|-----------|
| CSI | Channel State Information — per-subcarrier amplitude/phase from WiFi |
| NVS | Non-Volatile Storage — ESP-IDF key-value flash partition |
| TDM | Time-Division Multiplexing — nodes transmit in assigned time slots |
| UART | Universal Asynchronous Receiver-Transmitter — serial console output |
| SLIRP | User-mode TCP/IP stack — enables networking without root/TAP |
| QEMU | Quick Emulator — runs ESP32-S3 firmware without physical hardware |
| QMP | QEMU Machine Protocol — JSON-based control interface |
| LFSR | Linear Feedback Shift Register — deterministic pseudo-random generator |
| SPSC | Single Producer Single Consumer — lock-free ring buffer pattern |
| FreeRTOS | Real-time OS used by ESP-IDF for task scheduling |
| gcov/lcov | GCC code coverage tools for line/branch analysis |
| libFuzzer | LLVM coverage-guided fuzzer for finding crashes |
| ASAN | AddressSanitizer — detects buffer overflows and use-after-free |
| UBSAN | UndefinedBehaviorSanitizer — detects undefined C behavior |
## Quick Start
### Prerequisites
Install required tools:
```bash
# QEMU (Espressif fork with ESP32-S3 support)
git clone https://github.com/espressif/qemu.git
cd qemu && ./configure --target-list=xtensa-softmmu && make -j$(nproc)
export QEMU_PATH=/path/to/qemu/build/qemu-system-xtensa
# ESP-IDF (for building firmware)
# See https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/get-started/
# Python tools
pip install esptool esp-idf-nvs-partition-gen
# Coverage tools (optional, Layer 5)
sudo apt install lcov # Debian/Ubuntu
brew install lcov # macOS
# Fuzz testing (optional, Layer 6)
sudo apt install clang # Debian/Ubuntu
# Mesh testing (optional, Layer 3 — requires root)
sudo apt install socat bridge-utils iproute2
```
### Run the Full Test Suite
```bash
# Layer 2: Single-node test (build + run + validate)
bash scripts/qemu-esp32s3-test.sh
# Layer 3: Multi-node mesh (3 nodes, requires root)
sudo bash scripts/qemu-mesh-test.sh 3
# Layer 6: Fuzz testing (60 seconds per target)
cd firmware/esp32-csi-node/test && make all CC=clang
make run_serialize FUZZ_DURATION=60
# Layer 7: Generate NVS test matrix
python3 scripts/generate_nvs_matrix.py --output-dir build/nvs_matrix
# Layer 8: Snapshot regression tests
bash scripts/qemu-snapshot-test.sh --create
bash scripts/qemu-snapshot-test.sh --restore csi-streaming
# Layer 9: Chaos/fault injection
bash scripts/qemu-chaos-test.sh --faults all --duration 120
```
### Environment Variables
| Variable | Default | Description |
|----------|---------|-------------|
| `QEMU_PATH` | `qemu-system-xtensa` | Path to Espressif QEMU binary |
| `QEMU_TIMEOUT` | `60` (single) / `45` (mesh) / `120` (chaos) | Test timeout in seconds |
| `SKIP_BUILD` | unset | Set to `1` to skip firmware build step |
| `NVS_BIN` | unset | Path to pre-built NVS partition binary |
| `QEMU_NET` | `1` | Set to `0` to disable SLIRP networking |
| `CHAOS_SEED` | current time | Seed for reproducible chaos testing |
### Exit Codes (all scripts)
| Code | Meaning | Action |
|------|---------|--------|
| 0 | PASS | All checks passed |
| 1 | WARN | Non-critical issues; review output |
| 2 | FAIL | Critical checks failed; fix and re-run |
| 3 | FATAL | Build error, crash, or missing tool; check prerequisites |
## Decision
Introduce a **comprehensive QEMU testing platform** for the ESP32-S3 CSI node firmware with nine capability layers:
@ -145,7 +237,7 @@ This model exercises:
| 5 | Channel sweep | 5s | Frames on channels 1, 6, 11 in sequence |
| 6 | MAC filter test | 5s | Frames with wrong MAC are dropped (counter check) |
| 7 | Ring buffer overflow | 3s | 1000 frames in 100ms burst, graceful drop |
| 8 | Boundary RSSI | 5s | RSSI sweeps -127 to 0, no crash |
| 8 | Boundary RSSI | 5s | RSSI sweeps -90 to -10 dBm, no crash |
| 9 | Zero-length frame | 2s | `iq_len=0` frames, serialize returns 0 |
---
@ -456,6 +548,53 @@ xtensa-esp-elf-gdb build/esp32-csi-node.elf \
-ex "continue"
```
### Debugging Walkthrough
**1. Start QEMU with GDB stub (paused at reset vector):**
```bash
qemu-system-xtensa \
-machine esp32s3 \
-nographic \
-drive file=build/qemu_flash.bin,if=mtd,format=raw \
-serial mon:stdio \
-s -S
# -s opens GDB server on localhost:1234
# -S pauses CPU until GDB sends "continue"
```
**2. Connect from a second terminal:**
```bash
xtensa-esp-elf-gdb build/esp32-csi-node.elf \
-ex "target remote :1234" \
-ex "b app_main" \
-ex "continue"
```
**3. Set a breakpoint on DSP processing and inspect state:**
```
(gdb) b edge_processing.c:dsp_task
(gdb) continue
# ...breakpoint hit...
(gdb) print g_nvs_config
(gdb) print ring->head - ring->tail
(gdb) continue
```
**4. Connect from VS Code** using the `launch.json` config below (set breakpoints in the editor gutter, then press F5).
**5. Dump gcov coverage data (requires `sdkconfig.coverage` overlay):**
```
(gdb) monitor gcov dump
# Writes .gcda files to the build directory.
# Then generate the HTML report on the host:
# lcov --capture --directory build --output-file coverage.info
# genhtml coverage.info --output-directory build/coverage_report
```
### Key Breakpoint Locations
| Breakpoint | Purpose |
@ -862,3 +1001,32 @@ Alternative to QEMU with better peripheral modeling for some platforms.
- ADR-040: WASM programmable sensing runtime
- ADR-057: Build-time CSI guard (`CONFIG_ESP_WIFI_CSI_ENABLED`)
- ADR-060: Channel override and MAC address filter
---
## Optimization Log (2026-03-14)
### Bugs Fixed
1. **LFSR float bias** — `lfsr_float()` used divisor 32767.5 producing range [-1.0, 1.00002]; fixed to 32768.0 for exact [-1.0, +1.0)
2. **MAC filter initialization** — `gen_mac_filter()` compared `frame_count == scenario_start_ms` (count vs timestamp); replaced with boolean flag
3. **Scenario infinite loop** — `advance_scenario()` looped to scenario 0 when all completed; now sets `s_all_done=true` and timer callback exits early
4. **Boot check severity** — `validate_qemu_output.py` reported no-boot as ERROR; upgraded to FATAL (nothing works without boot)
5. **NVS boundary configs** — `boundary-max` used `vital_win=65535` which firmware silently rejects (valid: 32-256); fixed to 256
6. **NVS boundary-min** — `vital_win=1` also invalid; fixed to 32 (firmware min)
7. **edge-tier2-custom** — `vital_win=512` exceeded firmware max of 256; fixed to 256
8. **power-save config** — Described as "10% duty cycle" but didn't set `power_duty=10`; fixed
9. **wasm-signed/unsigned** — Both configs were identical; signed now includes pubkey blob, unsigned sets `wasm_verify=0`
### Optimizations Applied
1. **SLIRP networking** — QEMU runner now passes `-nic user,model=open_eth` for UDP testing
2. **Scenario completion tracking** — Validator now checks `All N scenarios complete` log marker (check 15)
3. **Frame rate monitoring** — Validator extracts `scenario=N frames=M` counters for rate analysis (check 16)
4. **Watchdog tuning** — `sdkconfig.qemu` relaxes WDT to 30s / INT_WDT to 800ms for QEMU timing variance
5. **Timer stack depth** — Increased `FREERTOS_TIMER_TASK_STACK_DEPTH=4096` to prevent overflow from math-heavy mock callback
6. **Display disabled** — `CONFIG_DISPLAY_ENABLE=n` in QEMU overlay (no I2C hardware)
7. **CI fuzz job** — Added `fuzz-test` job running all 3 fuzz targets for 60s each with crash artifact upload
8. **CI NVS validation** — Added `nvs-matrix-validate` job that generates all 14 binaries and verifies sizes
9. **CI matrix expanded** — Added `edge-tier1`, `boundary-max`, `boundary-min` to QEMU test matrix (4 → 7 configs)
10. **QEMU cache key** — Uses `github.run_id` with restore-keys fallback to prevent stale QEMU builds

199
docs/adr/ADR-062-qemu-swarm-configurator.md Normal file
View file

@ -0,0 +1,199 @@
# ADR-062: QEMU ESP32-S3 Swarm Configurator
| Field | Value |
|-------------|------------------------------------------------|
| **Status** | Accepted |
| **Date** | 2026-03-14 |
| **Authors** | RuView Team |
| **Relates** | ADR-061 (QEMU testing platform), ADR-060 (channel/MAC filter), ADR-018 (binary frame), ADR-039 (edge intel) |
## Glossary
| Term | Definition |
|------|-----------|
| Swarm | A group of N QEMU ESP32-S3 instances running simultaneously |
| Topology | How nodes are connected: star, mesh, line, ring |
| Role | Node function: `sensor` (collects CSI), `coordinator` (aggregates + forwards), `gateway` (bridges to host) |
| Scenario matrix | Cross-product of topology × node count × NVS config × mock scenario |
| Health oracle | Python process that monitors all node UART logs and declares swarm health |
## Context
ADR-061 Layer 3 provides a basic multi-node mesh test: N identical nodes with sequential TDM slots connected via a Linux bridge. This is useful but limited:
1. **All nodes are identical** — real deployments have heterogeneous roles (sensor, coordinator, gateway)
2. **Single topology** — only fully-connected bridge; no star, line, or ring topologies
3. **No scenario variation per node** — all nodes run the same mock CSI scenario
4. **Manual configuration** — each test requires hand-editing env vars and arguments
5. **No swarm-level health monitoring** — validation checks individual nodes, not collective behavior
6. **No cross-node timing validation** — TDM slot ordering and inter-frame gaps aren't verified
Real WiFi-DensePose deployments use 3-8 ESP32-S3 nodes in various topologies. A single coordinator aggregates CSI from multiple sensors. The firmware must handle TDM conflicts, missing nodes, role-based behavior differences, and network partitions — none of which ADR-061 Layer 3 tests.
## Decision
Build a **QEMU Swarm Configurator** — a YAML-driven tool that defines multi-node test scenarios declaratively and orchestrates them under QEMU with swarm-level validation.
### Architecture
```
┌─────────────────────────────────────────────────────┐
│ swarm_config.yaml │
│ nodes: [{role: sensor, scenario: 2, channel: 6}] │
│ topology: star │
│ duration: 60s │
│ assertions: [all_nodes_boot, tdm_no_collision, ...] │
└──────────────────────┬──────────────────────────────┘
│
┌────────────▼────────────┐
│ qemu_swarm.py │
│ (orchestrator) │
└───┬────┬────┬───┬──────┘
│ │ │ │
┌────▼┐ ┌▼──┐ ▼ ┌▼────┐
│Node0│ │N1 │... │N(n-1)│ QEMU instances
│sens │ │sen│ │coord │
└──┬──┘ └─┬─┘ └──┬───┘
│ │ │
┌──▼──────▼─────────▼──┐
│ Virtual Network │ TAP bridge / SLIRP
│ (topology-shaped) │
└──────────┬───────────┘
│
┌──────────▼───────────┐
│ Aggregator (Rust) │ Collects frames
└──────────┬───────────┘
│
┌──────────▼───────────┐
│ Health Oracle │ Swarm-level assertions
│ (swarm_health.py) │
└──────────────────────┘
```
### YAML Configuration Schema
```yaml
# swarm_config.yaml
swarm:
name: "3-sensor-star"
duration_s: 60
topology: star # star | mesh | line | ring
aggregator_port: 5005
nodes:
- role: coordinator
node_id: 0
scenario: 0 # empty room (baseline)
channel: 6
edge_tier: 2
is_gateway: true # receives aggregated frames
- role: sensor
node_id: 1
scenario: 2 # walking person
channel: 6
tdm_slot: 1 # TDM slot index (auto-assigned from node position if omitted)
- role: sensor
node_id: 2
scenario: 3 # fall event
channel: 6
tdm_slot: 2
assertions:
- all_nodes_boot
- no_crashes
- tdm_no_collision
- all_nodes_produce_frames
- coordinator_receives_from_all
- fall_detected_by_node_2
- frame_rate_above: 15 # Hz minimum per node
- max_boot_time_s: 10
```
### Topologies
| Topology | Network | Description |
|----------|---------|-------------|
| `star` | All sensors connect to coordinator; coordinator has TAP to each sensor | Hub-and-spoke, most common |
| `mesh` | All nodes on same bridge (existing Layer 3 behavior) | Every node sees every other |
| `line` | Node 0 ↔ Node 1 ↔ Node 2 ↔ ... | Linear chain, tests multi-hop |
| `ring` | Like line but last connects to first | Circular, tests routing |
### Node Roles
| Role | Behavior | NVS Keys |
|------|----------|----------|
| `sensor` | Runs mock CSI, sends frames to coordinator | `node_id`, `tdm_slot`, `target_ip` |
| `coordinator` | Receives frames from sensors, runs edge aggregation | `node_id`, `tdm_slot=0`, `edge_tier=2` |
| `gateway` | Like coordinator but also bridges to host UDP | `node_id`, `target_ip=host`, `is_gateway=1` |
### Assertions (Swarm-Level)
| Assertion | What It Checks |
|-----------|---------------|
| `all_nodes_boot` | Every node's UART log shows boot indicators within timeout |
| `no_crashes` | No Guru Meditation, assert, panic in any log |
| `tdm_no_collision` | No two nodes transmit in the same TDM slot |
| `all_nodes_produce_frames` | Every sensor node's log contains CSI frame output |
| `coordinator_receives_from_all` | Coordinator log shows frames from each sensor's node_id |
| `fall_detected_by_node_N` | Node N's log reports a fall detection event |
| `frame_rate_above` | Each node produces at least N frames/second |
| `max_boot_time_s` | All nodes boot within N seconds |
| `no_heap_errors` | No OOM or heap corruption in any log |
| `network_partitioned_recovery` | After deliberate partition, nodes resume communication (future) |
### Preset Configurations
| Preset | Nodes | Topology | Purpose |
|--------|-------|----------|---------|
| `smoke` | 2 | star | Quick CI smoke test (15s) |
| `standard` | 3 | star | Default 3-node (sensor + sensor + coordinator) |
| `large-mesh` | 6 | mesh | Scale test with 6 fully-connected nodes |
| `line-relay` | 4 | line | Multi-hop relay chain |
| `ring-fault` | 4 | ring | Ring with fault injection mid-test |
| `heterogeneous` | 5 | star | Mixed scenarios: walk, fall, static, channel-sweep, empty |
| `ci-matrix` | 3 | star | CI-optimized preset (30s, minimal assertions) |
## File Layout
```
scripts/
├── qemu_swarm.py # Main orchestrator (CLI entry point)
├── swarm_health.py # Swarm-level health oracle
└── swarm_presets/
├── smoke.yaml
├── standard.yaml
├── large_mesh.yaml
├── line_relay.yaml
├── ring_fault.yaml
├── heterogeneous.yaml
└── ci_matrix.yaml
.github/workflows/
└── firmware-qemu.yml # MODIFIED: add swarm test job
```
## Consequences
### Benefits
1. **Declarative testing** — define swarm topology in YAML, not shell scripts
2. **Role-based nodes** — test coordinator/sensor/gateway interactions
3. **Topology variety** — star/mesh/line/ring match real deployment patterns
4. **Swarm-level assertions** — validate collective behavior, not just individual nodes
5. **Preset library** — quick CI smoke tests and thorough manual validation
6. **Reproducible** — YAML configs are version-controlled and shareable
### Limitations
1. **Still requires root** for TAP bridge topologies (star, line, ring); mesh can use SLIRP
2. **QEMU resource usage** — 6+ QEMU instances use ~2GB RAM, may slow CI runners
3. **No real RF** — inter-node communication is IP-based, not WiFi CSI multipath
## References
- ADR-061: QEMU ESP32-S3 firmware testing platform (Layers 1-9)
- ADR-060: Channel override and MAC address filter provisioning
- ADR-018: Binary CSI frame format (magic `0xC5110001`)
- ADR-039: Edge intelligence pipeline (biquad, vitals, fall detection)

336
docs/user-guide.md
View file

@ -38,8 +38,17 @@ WiFi DensePose turns commodity WiFi signals into real-time human pose estimation
- [ESP32-S3 Mesh](#esp32-s3-mesh)
- [Intel 5300 / Atheros NIC](#intel-5300--atheros-nic)
15. [Docker Compose (Multi-Service)](#docker-compose-multi-service)
16. [Troubleshooting](#troubleshooting)
17. [FAQ](#faq)
16. [Testing Firmware Without Hardware (QEMU)](#testing-firmware-without-hardware-qemu)
- [What You Need](#what-you-need)
- [Your First Test Run](#your-first-test-run)
- [Understanding the Test Output](#understanding-the-test-output)
- [Testing Multiple Nodes at Once (Swarm)](#testing-multiple-nodes-at-once-swarm)
- [Swarm Presets](#swarm-presets)
- [Writing Your Own Swarm Config](#writing-your-own-swarm-config)
- [Debugging Firmware in QEMU](#debugging-firmware-in-qemu)
- [Running the Full Test Suite](#running-the-full-test-suite)
17. [Troubleshooting](#troubleshooting)
18. [FAQ](#faq)
---
@ -936,6 +945,288 @@ This starts:
---
## Testing Firmware Without Hardware (QEMU)
You can test the ESP32-S3 firmware on your computer without any physical hardware. The project uses **QEMU** — an emulator that pretends to be an ESP32-S3 chip, running the real firmware code inside a virtual machine on your PC.
This is useful when:
- You don't have an ESP32-S3 board yet
- You want to test firmware changes before flashing to real hardware
- You're running automated tests in CI/CD
- You want to simulate multiple ESP32 nodes talking to each other
### What You Need
**Required:**
- Python 3.8+ (you probably already have this)
- QEMU with ESP32-S3 support (Espressif's fork)
**Install QEMU (one-time setup):**
```bash
# Easiest: use the automated installer (installs QEMU + Python tools)
bash scripts/install-qemu.sh
# Or check what's already installed:
bash scripts/install-qemu.sh --check
```
The installer detects your OS (Ubuntu, Fedora, macOS, etc.), installs build dependencies, clones Espressif's QEMU fork, builds it, and adds it to your PATH. It also installs the Python tools (`esptool`, `pyyaml`, `esp-idf-nvs-partition-gen`).
<details>
<summary>Manual installation (if you prefer)</summary>
```bash
# Build from source
git clone https://github.com/espressif/qemu.git
cd qemu
./configure --target-list=xtensa-softmmu --enable-slirp
make -j$(nproc)
export QEMU_PATH=$(pwd)/build/qemu-system-xtensa
# Install Python tools
pip install esptool pyyaml esp-idf-nvs-partition-gen
```
</details>
**For multi-node testing (optional):**
```bash
# Linux only — needed for virtual network bridges
sudo apt install socat bridge-utils iproute2
```
### The `qemu-cli.sh` Command
All QEMU testing is available through a single command:
```bash
bash scripts/qemu-cli.sh <command>
```
| Command | What it does |
|---------|-------------|
| `install` | Install QEMU (runs the installer above) |
| `test` | Run single-node firmware test |
| `swarm --preset smoke` | Quick 2-node swarm test |
| `swarm --preset standard` | Standard 3-node test |
| `mesh 3` | Multi-node mesh test |
| `chaos` | Fault injection resilience test |
| `fuzz --duration 60` | Run fuzz testing |
| `status` | Show what's installed and ready |
| `help` | Show all commands |
### Your First Test Run
The simplest way to test the firmware:
```bash
# Using the CLI:
bash scripts/qemu-cli.sh test
# Or directly:
bash scripts/qemu-esp32s3-test.sh
```
**What happens behind the scenes:**
1. The firmware is compiled with a "mock CSI" mode — instead of reading real WiFi signals, it generates synthetic test data that mimics real people walking, falling, or breathing
2. The compiled firmware is loaded into QEMU, which boots it like a real ESP32-S3
3. The emulator's serial output (what you'd see on a USB cable) is captured
4. A validation script checks the output for expected behavior and errors
If you already built the firmware and want to skip rebuilding:
```bash
SKIP_BUILD=1 bash scripts/qemu-esp32s3-test.sh
```
To give it more time (useful on slower machines):
```bash
QEMU_TIMEOUT=120 bash scripts/qemu-esp32s3-test.sh
```
### Understanding the Test Output
The test runs 16 checks on the firmware's output. Here's what a successful run looks like:
```
=== QEMU ESP32-S3 Firmware Test (ADR-061) ===
[PASS] Boot: Firmware booted successfully
[PASS] NVS config: Configuration loaded from flash
[PASS] Mock CSI: Synthetic WiFi data generator started
[PASS] Edge processing: Signal analysis pipeline running
[PASS] Frame serialization: Data packets formatted correctly
[PASS] No crashes: No error conditions detected
...
16/16 checks passed
=== Test Complete (exit code: 0) ===
```
**Exit codes explained:**
| Code | Meaning | What to do |
|------|---------|-----------|
| 0 | **PASS** — everything works | Nothing, you're good! |
| 1 | **WARN** — minor issues | Review the output; usually safe to continue |
| 2 | **FAIL** — something broke | Check the `[FAIL]` lines for what went wrong |
| 3 | **FATAL** — can't even start | Usually a missing tool or build failure; check error messages |
### Testing Multiple Nodes at Once (Swarm)
Real deployments use 3-8 ESP32 nodes. The **swarm configurator** lets you simulate multiple nodes on your computer, each with a different role:
- **Sensor nodes** — generate WiFi signal data (like ESP32s placed around a room)
- **Coordinator node** — collects data from all sensors and runs analysis
- **Gateway node** — bridges data to your computer
```bash
# Quick 2-node smoke test (15 seconds)
python3 scripts/qemu_swarm.py --preset smoke
# Standard 3-node test: 2 sensors + 1 coordinator (60 seconds)
python3 scripts/qemu_swarm.py --preset standard
# See what's available
python3 scripts/qemu_swarm.py --list-presets
# Preview what would run (without actually running)
python3 scripts/qemu_swarm.py --preset standard --dry-run
```
**Note:** Multi-node testing with virtual bridges requires Linux and `sudo`. On other systems, nodes use a simpler networking mode where each node can reach the coordinator but not each other.
### Swarm Presets
| Preset | Nodes | Duration | Best for |
|--------|-------|----------|----------|
| `smoke` | 2 | 15s | Quick check that things work |
| `standard` | 3 | 60s | Normal development testing |
| `ci_matrix` | 3 | 30s | CI/CD pipelines |
| `large_mesh` | 6 | 90s | Testing at scale |
| `line_relay` | 4 | 60s | Multi-hop relay testing |
| `ring_fault` | 4 | 75s | Fault tolerance testing |
| `heterogeneous` | 5 | 90s | Mixed scenario testing |
### Writing Your Own Swarm Config
Create a YAML file describing your test scenario:
```yaml
# my_test.yaml
swarm:
name: my-custom-test
duration_s: 45
topology: star # star, mesh, line, or ring
aggregator_port: 5005
nodes:
- role: coordinator
node_id: 0
scenario: 0 # 0=empty room (baseline)
channel: 6
edge_tier: 2
- role: sensor
node_id: 1
scenario: 2 # 2=walking person
channel: 6
tdm_slot: 1
- role: sensor
node_id: 2
scenario: 3 # 3=fall event
channel: 6
tdm_slot: 2
assertions:
- all_nodes_boot # Did every node start up?
- no_crashes # Any error/panic?
- all_nodes_produce_frames # Is each sensor generating data?
- fall_detected_by_node_2 # Did node 2 detect the fall?
```
**Available scenarios** (what kind of fake WiFi data to generate):
| # | Scenario | Description |
|---|----------|-------------|
| 0 | Empty room | Baseline with just noise |
| 1 | Static person | Someone standing still |
| 2 | Walking | Someone walking across the room |
| 3 | Fall | Someone falling down |
| 4 | Multiple people | Two people in the room |
| 5 | Channel sweep | Cycling through WiFi channels |
| 6 | MAC filter | Testing device filtering |
| 7 | Ring overflow | Stress test with burst of data |
| 8 | RSSI sweep | Signal strength from weak to strong |
| 9 | Zero-length | Edge case: empty data packet |
**Topology options:**
| Topology | Shape | When to use |
|----------|-------|-------------|
| `star` | All sensors connect to one coordinator | Most common setup |
| `mesh` | Every node can talk to every other | Testing fully connected networks |
| `line` | Nodes in a chain (A → B → C → D) | Testing relay/forwarding |
| `ring` | Chain with ends connected | Testing circular routing |
Run your custom config:
```bash
python3 scripts/qemu_swarm.py --config my_test.yaml
```
### Debugging Firmware in QEMU
If something goes wrong, you can attach a debugger to the emulated ESP32:
```bash
# Terminal 1: Start QEMU with debug support (paused at boot)
qemu-system-xtensa -machine esp32s3 -nographic \
-drive file=firmware/esp32-csi-node/build/qemu_flash.bin,if=mtd,format=raw \
-s -S
# Terminal 2: Connect the debugger
xtensa-esp-elf-gdb firmware/esp32-csi-node/build/esp32-csi-node.elf \
-ex "target remote :1234" \
-ex "break app_main" \
-ex "continue"
```
Or use VS Code: open the project, press **F5**, and select **"QEMU ESP32-S3 Debug"**.
### Running the Full Test Suite
For thorough validation before submitting a pull request:
```bash
# 1. Single-node test (2 minutes)
bash scripts/qemu-esp32s3-test.sh
# 2. Multi-node swarm test (1 minute)
python3 scripts/qemu_swarm.py --preset standard
# 3. Fuzz testing — finds edge-case crashes (1-5 minutes)
cd firmware/esp32-csi-node/test
make all CC=clang
make run_serialize FUZZ_DURATION=60
make run_edge FUZZ_DURATION=60
make run_nvs FUZZ_DURATION=60
# 4. NVS configuration matrix — tests 14 config combinations
python3 scripts/generate_nvs_matrix.py --output-dir build/nvs_matrix
# 5. Chaos testing — injects faults to test resilience (2 minutes)
bash scripts/qemu-chaos-test.sh
```
All of these also run automatically in CI when you push changes to `firmware/`.
---
## Troubleshooting
### Docker: "no matching manifest for linux/arm64" on macOS
@ -1015,6 +1306,47 @@ The server applies a 3-stage smoothing pipeline (ADR-048). If readings are still
- Hard refresh with Ctrl+Shift+R to clear cached settings
- The auto-detect probes `/health` on the same origin — cross-origin won't work
### QEMU: "qemu-system-xtensa: command not found"
QEMU for ESP32-S3 must be built from Espressif's fork — it is not in standard package managers:
```bash
git clone https://github.com/espressif/qemu.git
cd qemu && ./configure --target-list=xtensa-softmmu && make -j$(nproc)
export QEMU_PATH=$(pwd)/build/qemu-system-xtensa
```
Or point to an existing build: `QEMU_PATH=/path/to/qemu-system-xtensa bash scripts/qemu-esp32s3-test.sh`
### QEMU: Test times out with no output
The emulator is slower than real hardware. Increase the timeout:
```bash
QEMU_TIMEOUT=120 bash scripts/qemu-esp32s3-test.sh
```
If there's truly no output at all, the firmware build may have failed. Rebuild without `SKIP_BUILD`:
```bash
bash scripts/qemu-esp32s3-test.sh # without SKIP_BUILD
```
### QEMU: "esptool not found"
Install it with pip: `pip install esptool`
### QEMU Swarm: "Must be run as root"
Multi-node swarm tests with virtual network bridges require root on Linux. Two options:
1. Run with sudo: `sudo python3 scripts/qemu_swarm.py --preset standard`
2. Skip bridges (nodes use simpler networking): the tool automatically falls back on non-root systems, but nodes can't communicate with each other (only with the aggregator)
### QEMU Swarm: "yaml module not found"
Install PyYAML: `pip install pyyaml`
---
## FAQ

228
firmware/esp32-csi-node/README.md
View file

@ -523,6 +523,231 @@ The firmware is continuously verified by [`.github/workflows/firmware-ci.yml`](.
---
## QEMU Testing (ADR-061)
Test the firmware without physical hardware using Espressif's QEMU fork. A compile-time mock CSI generator (`CONFIG_CSI_MOCK_ENABLED=y`) replaces the real WiFi CSI callback with a timer-driven synthetic frame injector that exercises the full edge processing pipeline -- biquad filtering, Welford stats, top-K selection, presence/fall detection, and vitals extraction.
### Prerequisites
- **ESP-IDF v5.4** -- [installation guide](https://docs.espressif.com/projects/esp-idf/en/v5.4/esp32s3/get-started/)
- **Espressif QEMU fork** -- must be built from source (not in Ubuntu packages):
```bash
git clone --depth 1 https://github.com/espressif/qemu.git /tmp/qemu
cd /tmp/qemu
./configure --target-list=xtensa-softmmu --enable-slirp
make -j$(nproc)
sudo cp build/qemu-system-xtensa /usr/local/bin/
```
### Quick Start
Three commands to go from source to running firmware in QEMU:
```bash
cd firmware/esp32-csi-node
# 1. Build with mock CSI enabled (replaces real WiFi CSI with synthetic frames)
idf.py -D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.qemu" build
# 2. Create merged flash image
esptool.py --chip esp32s3 merge_bin -o build/qemu_flash.bin \
--flash_mode dio --flash_freq 80m --flash_size 8MB \
0x0 build/bootloader/bootloader.bin \
0x8000 build/partition_table/partition-table.bin \
0x20000 build/esp32-csi-node.bin
# 3. Run in QEMU
qemu-system-xtensa -machine esp32s3 -nographic \
-drive file=build/qemu_flash.bin,if=mtd,format=raw \
-serial mon:stdio -no-reboot
```
The firmware boots FreeRTOS, loads NVS config, starts the mock CSI generator at 20 Hz, and runs all edge processing. UART output shows log lines that can be validated automatically.
### Mock CSI Scenarios
The mock generator cycles through 10 scenarios that exercise every edge processing path:
| ID | Scenario | Duration | Expected Output |
|----|----------|----------|-----------------|
| 0 | Empty room | 10 s | `presence=0`, `motion_energy < thresh` |
| 1 | Static person | 10 s | `presence=1`, `breathing_rate` in [10, 25], `fall=0` |
| 2 | Walking person | 10 s | `presence=1`, `motion_energy > 0.5`, `fall=0` |
| 3 | Fall event | 5 s | `fall=1` flag set, `motion_energy` spike |
| 4 | Multi-person | 15 s | `n_persons=2`, independent breathing rates |
| 5 | Channel sweep | 5 s | Frames on channels 1, 6, 11 in sequence |
| 6 | MAC filter test | 5 s | Frames with wrong MAC dropped (counter check) |
| 7 | Ring buffer overflow | 3 s | 1000 frames in 100 ms burst, graceful drop |
| 8 | Boundary RSSI | 5 s | RSSI sweeps -127 to 0, no crash |
| 9 | Zero-length frame | 2 s | `iq_len=0` frames, serialize returns 0 |
### NVS Provisioning Matrix
14 NVS configurations are tested in CI to ensure all config paths work correctly:
| Config | NVS Values | Validates |
|--------|-----------|-----------|
| `default` | (empty NVS) | Kconfig fallback paths |
| `wifi-only` | ssid, password | Basic provisioning |
| `full-adr060` | channel=6, filter_mac=AA:BB:CC:DD:EE:FF | Channel override + MAC filter |
| `edge-tier0` | edge_tier=0 | Raw CSI passthrough (no DSP) |
| `edge-tier1` | edge_tier=1, pres_thresh=100, fall_thresh=2000 | Stats-only mode |
| `edge-tier2-custom` | edge_tier=2, vital_win=128, vital_int=500, subk_count=16 | Full vitals with custom params |
| `tdm-3node` | tdm_slot=1, tdm_nodes=3, node_id=1 | TDM mesh timing |
| `wasm-signed` | wasm_max=4, wasm_verify=1, wasm_pubkey=<32B> | WASM with Ed25519 verification |
| `wasm-unsigned` | wasm_max=2, wasm_verify=0 | WASM without signature check |
| `5ghz-channel` | channel=36, filter_mac=... | 5 GHz CSI collection |
| `boundary-max` | target_port=65535, node_id=255, top_k=32, vital_win=256 | Max-range values |
| `boundary-min` | target_port=1, node_id=0, top_k=1, vital_win=32 | Min-range values |
| `power-save` | power_duty=10, edge_tier=0 | Low-power mode |
| `corrupt-nvs` | (partial/corrupt partition) | Graceful fallback to defaults |
Generate all configs for CI testing:
```bash
python scripts/generate_nvs_matrix.py
```
### Validation Checks
The output validation script (`scripts/validate_qemu_output.py`) parses UART logs and checks:
| Check | Pass Criteria | Severity |
|-------|---------------|----------|
| Boot | `app_main()` called, no panic/assert | FATAL |
| NVS load | `nvs_config:` log line present | FATAL |
| Mock CSI init | `mock_csi: Starting mock CSI generator` | FATAL |
| Frame generation | `mock_csi: Generated N frames` where N > 0 | ERROR |
| Edge pipeline | `edge_processing: DSP task started on Core 1` | ERROR |
| Vitals output | At least one `vitals:` log line with valid BPM | ERROR |
| Presence detection | `presence=1` during person scenarios | WARN |
| Fall detection | `fall=1` during fall scenario | WARN |
| MAC filter | `csi_collector: MAC filter dropped N frames` where N > 0 | WARN |
| ADR-018 serialize | `csi_collector: Serialized N frames` where N > 0 | ERROR |
| No crash | No `Guru Meditation Error`, no `assert failed`, no `abort()` | FATAL |
| Clean exit | Firmware reaches end of scenario sequence | ERROR |
| Heap OK | No `HEAP_ERROR` or `out of memory` | FATAL |
| Stack OK | No `Stack overflow` detected | FATAL |
Exit codes: `0` = all pass, `1` = WARN only, `2` = ERROR, `3` = FATAL.
### GDB Debugging
QEMU provides a built-in GDB stub for zero-cost breakpoint debugging without JTAG hardware:
```bash
# Launch QEMU paused, with GDB stub on port 1234
qemu-system-xtensa \
-machine esp32s3 -nographic \
-drive file=build/qemu_flash.bin,if=mtd,format=raw \
-serial mon:stdio \
-s -S
# In another terminal, attach GDB
xtensa-esp-elf-gdb build/esp32-csi-node.elf \
-ex "target remote :1234" \
-ex "b edge_processing.c:dsp_task" \
-ex "b csi_collector.c:csi_serialize_frame" \
-ex "b mock_csi.c:mock_generate_csi_frame" \
-ex "watch g_nvs_config.csi_channel" \
-ex "continue"
```
Key breakpoints:
| Location | Purpose |
|----------|---------|
| `edge_processing.c:dsp_task` | DSP consumer loop entry |
| `edge_processing.c:presence_detect` | Threshold comparison |
| `edge_processing.c:fall_detect` | Phase acceleration check |
| `csi_collector.c:csi_serialize_frame` | ADR-018 serialization |
| `nvs_config.c:nvs_config_load` | NVS parse logic |
| `wasm_runtime.c:wasm_on_csi` | WASM module dispatch |
| `mock_csi.c:mock_generate_csi_frame` | Synthetic frame generation |
VS Code integration -- add to `.vscode/launch.json`:
```json
{
"name": "QEMU ESP32-S3 Debug",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceFolder}/firmware/esp32-csi-node/build/esp32-csi-node.elf",
"miDebuggerPath": "xtensa-esp-elf-gdb",
"miDebuggerServerAddress": "localhost:1234",
"setupCommands": [
{ "text": "set remote hardware-breakpoint-limit 2" },
{ "text": "set remote hardware-watchpoint-limit 2" }
]
}
```
### Code Coverage
Build with gcov enabled and collect coverage after a QEMU run:
```bash
# Build with coverage overlay
idf.py -D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.qemu;sdkconfig.coverage" build
# After QEMU run, generate HTML report
lcov --capture --directory build --output-file coverage.info
lcov --remove coverage.info '*/esp-idf/*' '*/test/*' --output-file coverage_filtered.info
genhtml coverage_filtered.info --output-directory build/coverage_report
```
Coverage targets:
| Module | Target |
|--------|--------|
| `edge_processing.c` | >= 80% |
| `csi_collector.c` | >= 90% |
| `nvs_config.c` | >= 95% |
| `mock_csi.c` | >= 95% |
| `stream_sender.c` | >= 80% |
| `wasm_runtime.c` | >= 70% |
### Fuzz Testing
Host-native fuzz targets compiled with libFuzzer + AddressSanitizer (no QEMU needed):
```bash
cd firmware/esp32-csi-node/test
# Build fuzz target
clang -fsanitize=fuzzer,address -I../main \
fuzz_csi_serialize.c ../main/csi_collector.c \
-o fuzz_serialize
# Run for 5 minutes
timeout 300 ./fuzz_serialize corpus/ || true
```
Fuzz targets:
| Target | Input | Looking For |
|--------|-------|-------------|
| `csi_serialize_frame()` | Random `wifi_csi_info_t` | Buffer overflow, NULL deref |
| `nvs_config_load()` | Crafted NVS partition binary | No crash, fallback to defaults |
| `edge_enqueue_csi()` | Rapid-fire 10,000 frames | Ring overflow, no data corruption |
| `rvf_parser.c` | Malformed RVF packets | Parse rejection, no crash |
| `wasm_upload.c` | Corrupt WASM blobs | Rejection without crash |
### QEMU CI Workflow
The GitHub Actions workflow (`.github/workflows/firmware-qemu.yml`) runs on every push or PR touching `firmware/**`:
1. Uses the `espressif/idf:v5.4` container image
2. Builds Espressif's QEMU fork from source
3. Runs a CI matrix across NVS configurations: `default`, `nvs-full`, `nvs-edge-tier0`, `nvs-tdm-3node`
4. For each config: provisions NVS, builds with mock CSI, runs in QEMU with timeout, validates UART output
5. Uploads QEMU logs as build artifacts for debugging failures
No physical ESP32 hardware is needed in CI.
---
## Troubleshooting
| Symptom | Cause | Fix |
@ -556,6 +781,9 @@ This firmware implements or references the following ADRs:
| [ADR-029](../../docs/adr/ADR-029-ruvsense-multistatic-sensing-mode.md) | Channel hopping and TDM protocol | Accepted |
| [ADR-039](../../docs/adr/ADR-039-esp32-edge-intelligence.md) | Edge intelligence tiers 0-2 | Accepted |
| [ADR-040](../../docs/adr/) | WASM programmable sensing (Tier 3) with RVF container format | Alpha |
| [ADR-057](../../docs/adr/ADR-057-build-time-csi-guard.md) | Build-time CSI guard (`CONFIG_ESP_WIFI_CSI_ENABLED`) | Accepted |
| [ADR-060](../../docs/adr/ADR-060-channel-mac-filter.md) | Channel override and MAC address filter | Accepted |
| [ADR-061](../../docs/adr/ADR-061-qemu-esp32s3-firmware-testing.md) | QEMU ESP32-S3 emulation for firmware testing | Proposed |
---

5
firmware/esp32-csi-node/main/CMakeLists.txt
View file

@ -6,6 +6,11 @@ set(SRCS
set(REQUIRES "")
# ADR-061: Mock CSI generator for QEMU testing
if(CONFIG_CSI_MOCK_ENABLED)
list(APPEND SRCS "mock_csi.c")
endif()
# ADR-045: AMOLED display support (compile-time optional)
if(CONFIG_DISPLAY_ENABLE)
list(APPEND SRCS "display_hal.c" "display_ui.c" "display_task.c")

37
firmware/esp32-csi-node/main/Kconfig.projbuild
View file

@ -201,3 +201,40 @@ menu "WASM Programmable Sensing (ADR-040)"
Default 1000 ms = 1 Hz.
endmenu
menu "Mock CSI (QEMU Testing)"
config CSI_MOCK_ENABLED
bool "Enable mock CSI generator (for QEMU testing)"
default n
help
Replace real WiFi CSI with synthetic frame generator.
Use with QEMU emulation for automated testing.
config CSI_MOCK_SKIP_WIFI_CONNECT
bool "Skip WiFi STA connection"
depends on CSI_MOCK_ENABLED
default y
help
Skip WiFi initialization when using mock CSI.
config CSI_MOCK_SCENARIO
int "Mock scenario (0-9, 255=all)"
depends on CSI_MOCK_ENABLED
default 255
range 0 255
help
0=empty, 1=static, 2=walking, 3=fall, 4=multi-person,
5=channel-sweep, 6=mac-filter, 7=ring-overflow,
8=boundary-rssi, 9=zero-length, 255=run all.
config CSI_MOCK_SCENARIO_DURATION_MS
int "Scenario duration (ms)"
depends on CSI_MOCK_ENABLED
default 5000
range 1000 60000
config CSI_MOCK_LOG_FRAMES
bool "Log every mock frame (verbose)"
depends on CSI_MOCK_ENABLED
default n
endmenu

32
firmware/esp32-csi-node/main/main.c
View file

@ -27,6 +27,9 @@
#include "wasm_runtime.h"
#include "wasm_upload.h"
#include "display_task.h"
#ifdef CONFIG_CSI_MOCK_ENABLED
#include "mock_csi.h"
#endif
#include "esp_timer.h"
@ -134,17 +137,35 @@ void app_main(void)
ESP_LOGI(TAG, "ESP32-S3 CSI Node (ADR-018) — Node ID: %d", g_nvs_config.node_id);
/* Initialize WiFi STA */
/* Initialize WiFi STA (skip entirely under QEMU mock — no RF hardware) */
#ifndef CONFIG_CSI_MOCK_SKIP_WIFI_CONNECT
wifi_init_sta();
#else
ESP_LOGI(TAG, "Mock CSI mode: skipping WiFi init (CONFIG_CSI_MOCK_SKIP_WIFI_CONNECT)");
#endif
/* Initialize UDP sender with runtime target */
#ifdef CONFIG_CSI_MOCK_SKIP_WIFI_CONNECT
ESP_LOGI(TAG, "Mock CSI mode: skipping UDP sender init (no network)");
#else
if (stream_sender_init_with(g_nvs_config.target_ip, g_nvs_config.target_port) != 0) {
ESP_LOGE(TAG, "Failed to initialize UDP sender");
return;
}
#endif
/* Initialize CSI collection */
#ifdef CONFIG_CSI_MOCK_ENABLED
/* ADR-061: Start mock CSI generator (replaces real WiFi CSI in QEMU) */
esp_err_t mock_ret = mock_csi_init(CONFIG_CSI_MOCK_SCENARIO);
if (mock_ret != ESP_OK) {
ESP_LOGE(TAG, "Mock CSI init failed: %s", esp_err_to_name(mock_ret));
} else {
ESP_LOGI(TAG, "Mock CSI active (scenario=%d)", CONFIG_CSI_MOCK_SCENARIO);
}
#else
csi_collector_init();
#endif
/* ADR-039: Initialize edge processing pipeline. */
edge_config_t edge_cfg = {
@ -162,12 +183,17 @@ void app_main(void)
esp_err_to_name(edge_ret));
}
/* Initialize OTA update HTTP server. */
/* Initialize OTA update HTTP server (requires network). */
httpd_handle_t ota_server = NULL;
#ifndef CONFIG_CSI_MOCK_SKIP_WIFI_CONNECT
esp_err_t ota_ret = ota_update_init_ex(&ota_server);
if (ota_ret != ESP_OK) {
ESP_LOGW(TAG, "OTA server init failed: %s", esp_err_to_name(ota_ret));
}
#else
esp_err_t ota_ret = ESP_ERR_NOT_SUPPORTED;
ESP_LOGI(TAG, "Mock CSI mode: skipping OTA server (no network)");
#endif
/* ADR-040: Initialize WASM programmable sensing runtime. */
esp_err_t wasm_ret = wasm_runtime_init();
@ -205,10 +231,12 @@ void app_main(void)
power_mgmt_init(g_nvs_config.power_duty);
/* ADR-045: Start AMOLED display task (gracefully skips if no display). */
#ifdef CONFIG_DISPLAY_ENABLE
esp_err_t disp_ret = display_task_start();
if (disp_ret != ESP_OK) {
ESP_LOGW(TAG, "Display init returned: %s", esp_err_to_name(disp_ret));
}
#endif
ESP_LOGI(TAG, "CSI streaming active → %s:%d (edge_tier=%u, OTA=%s, WASM=%s)",
g_nvs_config.target_ip, g_nvs_config.target_port,

696
firmware/esp32-csi-node/main/mock_csi.c Normal file
View file

@ -0,0 +1,696 @@
/**
* @file mock_csi.c
* @brief ADR-061 Mock CSI generator for ESP32-S3 QEMU testing.
*
* Generates synthetic CSI frames at 20 Hz using an esp_timer callback,
* injecting them directly into the edge processing pipeline. This allows
* full-stack testing of the CSI signal processing, vitals extraction,
* and presence detection pipeline under QEMU without WiFi hardware.
*
* Signal model per subcarrier k at time t:
* A_k(t) = A_base + A_person * exp(-d_k^2 / sigma^2) + noise
* phi_k(t) = phi_base + (2*pi*d / lambda) + breathing_mod(t) + noise
*
* The entire file is guarded by CONFIG_CSI_MOCK_ENABLED so it compiles
* to nothing on production builds.
*/
#include "sdkconfig.h"
#ifdef CONFIG_CSI_MOCK_ENABLED
#include "mock_csi.h"
#include "edge_processing.h"
#include "nvs_config.h"
#include <string.h>
#include <math.h>
#include "esp_log.h"
#include "esp_timer.h"
#include "sdkconfig.h"
static const char *TAG = "mock_csi";
/* ---- Configuration defaults ---- */
/** Scenario duration in ms. Kconfig-overridable. */
#ifndef CONFIG_CSI_MOCK_SCENARIO_DURATION_MS
#define CONFIG_CSI_MOCK_SCENARIO_DURATION_MS 5000
#endif
/* ---- Physical constants ---- */
#define SPEED_OF_LIGHT_MHZ 300.0f /**< c in m * MHz (simplified). */
#define FREQ_CH6_MHZ 2437.0f /**< Center frequency of WiFi channel 6. */
#define LAMBDA_CH6 (SPEED_OF_LIGHT_MHZ / FREQ_CH6_MHZ) /**< ~0.123 m */
/** Breathing rate: ~15 breaths/min = 0.25 Hz. */
#define BREATHING_FREQ_HZ 0.25f
/** Breathing modulation amplitude in radians. */
#define BREATHING_AMP_RAD 0.3f
/** Walking speed in m/s. */
#define WALK_SPEED_MS 1.0f
/** Room width for position wrapping (meters). */
#define ROOM_WIDTH_M 6.0f
/** Gaussian sigma for person influence on subcarriers. */
#define PERSON_SIGMA 8.0f
/** Base amplitude for all subcarriers. */
#define A_BASE 80.0f
/** Person-induced amplitude perturbation. */
#define A_PERSON 40.0f
/** Noise amplitude (peak). */
#define NOISE_AMP 3.0f
/** Phase noise amplitude (radians). */
#define PHASE_NOISE_AMP 0.05f
/** Number of frames in the ring overflow burst (scenario 7). */
#define OVERFLOW_BURST_COUNT 1000
/** Fall detection: number of frames with abrupt phase jump. */
#define FALL_FRAME_COUNT 5
/** Fall phase acceleration magnitude (radians). */
#define FALL_PHASE_JUMP 3.14f
/** Pi constant. */
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
/* ---- Channel sweep table ---- */
static const uint8_t s_sweep_channels[] = {1, 6, 11, 36};
#define SWEEP_CHANNEL_COUNT (sizeof(s_sweep_channels) / sizeof(s_sweep_channels[0]))
/* ---- MAC addresses for filter test ---- */
/** "Correct" MAC that matches a typical filter_mac. */
static const uint8_t s_good_mac[6] = {0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF};
/** "Wrong" MAC that should be rejected by the filter. */
static const uint8_t s_bad_mac[6] __attribute__((unused)) = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
/* ---- LFSR pseudo-random number generator ---- */
/**
* 32-bit Galois LFSR for deterministic pseudo-random noise.
* Avoids stdlib rand() which may not be available on ESP32 bare-metal.
* Taps: bits 32, 31, 29, 1 (Galois LFSR polynomial 0xD0000001).
*/
static uint32_t s_lfsr = 0xDEADBEEF;
static uint32_t lfsr_next(void)
{
uint32_t lsb = s_lfsr & 1u;
s_lfsr >>= 1;
if (lsb) {
s_lfsr ^= 0xD0000001u; /* x^32 + x^31 + x^29 + x^1 */
}
return s_lfsr;
}
/**
* Return a pseudo-random float in [-1.0, +1.0].
*/
static float lfsr_float(void)
{
uint32_t r = lfsr_next();
/* Map [0, 65535] to [-1.0, +1.0] using 65535/2 = 32767.5 */
return ((float)(r & 0xFFFF) / 32768.0f) - 1.0f;
}
/* ---- Module state ---- */
static mock_state_t s_state;
static esp_timer_handle_t s_timer = NULL;
/** Tracks whether the MAC filter has been set up in gen_mac_filter. */
static bool s_mac_filter_initialized = false;
/** Tracks whether the overflow burst has fired in gen_ring_overflow. */
static bool s_overflow_burst_done = false;
/* External NVS config (for MAC filter scenario). */
extern nvs_config_t g_nvs_config;
/* ---- Helper: compute channel frequency ---- */
static uint32_t channel_to_freq_mhz(uint8_t channel)
{
if (channel >= 1 && channel <= 13) {
return 2412 + (channel - 1) * 5;
} else if (channel == 14) {
return 2484;
} else if (channel >= 36 && channel <= 177) {
return 5000 + channel * 5;
}
return 2437; /* Default to ch 6. */
}
/* ---- Helper: compute wavelength for a channel ---- */
static float channel_to_lambda(uint8_t channel)
{
float freq = (float)channel_to_freq_mhz(channel);
return SPEED_OF_LIGHT_MHZ / freq;
}
/* ---- Helper: elapsed ms since scenario start ---- */
static int64_t scenario_elapsed_ms(void)
{
int64_t now = esp_timer_get_time() / 1000;
return now - s_state.scenario_start_ms;
}
/* ---- Helper: clamp int8 ---- */
static int8_t clamp_i8(int32_t val)
{
if (val < -128) return -128;
if (val > 127) return 127;
return (int8_t)val;
}
/* ---- Core signal generation ---- */
/**
* Generate one I/Q frame for a single person at position person_x.
*
* @param iq_buf Output buffer (MOCK_IQ_LEN bytes).
* @param person_x Person X position in meters.
* @param breathing Breathing phase in radians.
* @param has_person Whether a person is present.
* @param lambda Wavelength in meters.
*/
static void generate_person_iq(uint8_t *iq_buf, float person_x,
float breathing, bool has_person,
float lambda)
{
for (int k = 0; k < MOCK_N_SUBCARRIERS; k++) {
/* Distance of subcarrier k's spatial sample from person. */
float d_k = (float)k - person_x * (MOCK_N_SUBCARRIERS / ROOM_WIDTH_M);
/* Amplitude model. */
float amp = A_BASE;
if (has_person) {
float gauss = expf(-(d_k * d_k) / (2.0f * PERSON_SIGMA * PERSON_SIGMA));
amp += A_PERSON * gauss;
}
amp += NOISE_AMP * lfsr_float();
/* Phase model. */
float phase = (float)k * 0.1f; /* Base phase gradient. */
if (has_person) {
float d_meters = fabsf(d_k) * (ROOM_WIDTH_M / MOCK_N_SUBCARRIERS);
phase += (2.0f * M_PI * d_meters) / lambda;
phase += BREATHING_AMP_RAD * sinf(breathing);
}
phase += PHASE_NOISE_AMP * lfsr_float();
/* Convert to I/Q (int8). */
float i_f = amp * cosf(phase);
float q_f = amp * sinf(phase);
iq_buf[k * 2] = (uint8_t)clamp_i8((int32_t)i_f);
iq_buf[k * 2 + 1] = (uint8_t)clamp_i8((int32_t)q_f);
}
}
/* ---- Scenario generators ---- */
/**
* Scenario 0: Empty room.
* Low-amplitude noise on all subcarriers, no person present.
*/
static void gen_empty(uint8_t *iq_buf, uint8_t *channel, int8_t *rssi)
{
generate_person_iq(iq_buf, 0.0f, 0.0f, false, LAMBDA_CH6);
*channel = 6;
*rssi = -60;
}
/**
* Scenario 1: Static person.
* Person at fixed position with breathing modulation.
*/
static void gen_static_person(uint8_t *iq_buf, uint8_t *channel, int8_t *rssi)
{
s_state.breathing_phase += 2.0f * M_PI * BREATHING_FREQ_HZ
* (MOCK_CSI_INTERVAL_MS / 1000.0f);
if (s_state.breathing_phase > 2.0f * M_PI) {
s_state.breathing_phase -= 2.0f * M_PI;
}
generate_person_iq(iq_buf, 3.0f, s_state.breathing_phase, true, LAMBDA_CH6);
*channel = 6;
*rssi = -45;
}
/**
* Scenario 2: Walking person.
* Person moves across the room and wraps around.
*/
static void gen_walking(uint8_t *iq_buf, uint8_t *channel, int8_t *rssi)
{
s_state.breathing_phase += 2.0f * M_PI * BREATHING_FREQ_HZ
* (MOCK_CSI_INTERVAL_MS / 1000.0f);
if (s_state.breathing_phase > 2.0f * M_PI) {
s_state.breathing_phase -= 2.0f * M_PI;
}
s_state.person_x += s_state.person_speed * (MOCK_CSI_INTERVAL_MS / 1000.0f);
if (s_state.person_x > ROOM_WIDTH_M) {
s_state.person_x -= ROOM_WIDTH_M;
}
generate_person_iq(iq_buf, s_state.person_x, s_state.breathing_phase,
true, LAMBDA_CH6);
*channel = 6;
*rssi = -40;
}
/**
* Scenario 3: Fall event.
* Normal walking for most frames, then an abrupt phase discontinuity
* simulating a fall (rapid vertical displacement).
*/
static void gen_fall(uint8_t *iq_buf, uint8_t *channel, int8_t *rssi)
{
int64_t elapsed = scenario_elapsed_ms();
uint32_t duration = CONFIG_CSI_MOCK_SCENARIO_DURATION_MS;
/* Fall occurs at 70% of scenario duration. */
uint32_t fall_start = (duration * 70) / 100;
uint32_t fall_end = fall_start + (FALL_FRAME_COUNT * MOCK_CSI_INTERVAL_MS);
s_state.breathing_phase += 2.0f * M_PI * BREATHING_FREQ_HZ
* (MOCK_CSI_INTERVAL_MS / 1000.0f);
s_state.person_x += 0.5f * (MOCK_CSI_INTERVAL_MS / 1000.0f);
if (s_state.person_x > ROOM_WIDTH_M) {
s_state.person_x = ROOM_WIDTH_M;
}
float extra_phase = 0.0f;
if (elapsed >= fall_start && elapsed < fall_end) {
/* Abrupt phase jump simulating rapid downward motion. */
extra_phase = FALL_PHASE_JUMP;
}
/* Build I/Q with fall perturbation. */
float lambda = LAMBDA_CH6;
for (int k = 0; k < MOCK_N_SUBCARRIERS; k++) {
float d_k = (float)k - s_state.person_x * (MOCK_N_SUBCARRIERS / ROOM_WIDTH_M);
float gauss = expf(-(d_k * d_k) / (2.0f * PERSON_SIGMA * PERSON_SIGMA));
float amp = A_BASE + A_PERSON * gauss + NOISE_AMP * lfsr_float();
float d_meters = fabsf(d_k) * (ROOM_WIDTH_M / MOCK_N_SUBCARRIERS);
float phase = (float)k * 0.1f
+ (2.0f * M_PI * d_meters) / lambda
+ BREATHING_AMP_RAD * sinf(s_state.breathing_phase)
+ extra_phase * gauss /* Fall affects nearby subcarriers. */
+ PHASE_NOISE_AMP * lfsr_float();
iq_buf[k * 2] = (uint8_t)clamp_i8((int32_t)(amp * cosf(phase)));
iq_buf[k * 2 + 1] = (uint8_t)clamp_i8((int32_t)(amp * sinf(phase)));
}
*channel = 6;
*rssi = -42;
}
/**
* Scenario 4: Multiple people.
* Two people at different positions with independent breathing.
*/
static void gen_multi_person(uint8_t *iq_buf, uint8_t *channel, int8_t *rssi)
{
float dt = MOCK_CSI_INTERVAL_MS / 1000.0f;
s_state.breathing_phase += 2.0f * M_PI * BREATHING_FREQ_HZ * dt;
float breathing2 = s_state.breathing_phase * 1.3f; /* Slightly different rate. */
s_state.person_x += s_state.person_speed * dt;
s_state.person2_x += s_state.person2_speed * dt;
/* Wrap positions. */
if (s_state.person_x > ROOM_WIDTH_M) s_state.person_x -= ROOM_WIDTH_M;
if (s_state.person2_x > ROOM_WIDTH_M) s_state.person2_x -= ROOM_WIDTH_M;
float lambda = LAMBDA_CH6;
for (int k = 0; k < MOCK_N_SUBCARRIERS; k++) {
/* Superpose contributions from both people. */
float d1 = (float)k - s_state.person_x * (MOCK_N_SUBCARRIERS / ROOM_WIDTH_M);
float d2 = (float)k - s_state.person2_x * (MOCK_N_SUBCARRIERS / ROOM_WIDTH_M);
float g1 = expf(-(d1 * d1) / (2.0f * PERSON_SIGMA * PERSON_SIGMA));
float g2 = expf(-(d2 * d2) / (2.0f * PERSON_SIGMA * PERSON_SIGMA));
float amp = A_BASE + A_PERSON * g1 + (A_PERSON * 0.7f) * g2
+ NOISE_AMP * lfsr_float();
float dm1 = fabsf(d1) * (ROOM_WIDTH_M / MOCK_N_SUBCARRIERS);
float dm2 = fabsf(d2) * (ROOM_WIDTH_M / MOCK_N_SUBCARRIERS);
float phase = (float)k * 0.1f
+ (2.0f * M_PI * dm1) / lambda * g1
+ (2.0f * M_PI * dm2) / lambda * g2
+ BREATHING_AMP_RAD * sinf(s_state.breathing_phase) * g1
+ BREATHING_AMP_RAD * sinf(breathing2) * g2
+ PHASE_NOISE_AMP * lfsr_float();
iq_buf[k * 2] = (uint8_t)clamp_i8((int32_t)(amp * cosf(phase)));
iq_buf[k * 2 + 1] = (uint8_t)clamp_i8((int32_t)(amp * sinf(phase)));
}
*channel = 6;
*rssi = -38;
}
/**
* Scenario 5: Channel sweep.
* Cycles through channels 1, 6, 11, 36 every 20 frames.
*/
static void gen_channel_sweep(uint8_t *iq_buf, uint8_t *channel, int8_t *rssi)
{
/* Switch channel every 20 frames (1 second at 20 Hz). */
if ((s_state.frame_count % 20) == 0 && s_state.frame_count > 0) {
s_state.channel_idx = (s_state.channel_idx + 1) % SWEEP_CHANNEL_COUNT;
}
uint8_t ch = s_sweep_channels[s_state.channel_idx];
float lambda = channel_to_lambda(ch);
generate_person_iq(iq_buf, 3.0f, 0.0f, true, lambda);
*channel = ch;
*rssi = -50;
}
/**
* Scenario 6: MAC filter test.
* Alternates between a "good" MAC (should pass filter) and a "bad" MAC
* (should be rejected). Even frames use good MAC, odd frames use bad MAC.
*
* Note: Since we inject via edge_enqueue_csi() which bypasses the MAC
* filter (that happens in wifi_csi_callback), this scenario instead
* sets/clears the NVS filter_mac and logs which frames would pass.
* The test harness can verify frame_count vs expected.
*/
static void gen_mac_filter(uint8_t *iq_buf, uint8_t *channel, int8_t *rssi,
bool *skip_inject)
{
/* Set up the filter MAC to match s_good_mac on first frame of this scenario. */
if (!s_mac_filter_initialized) {
memcpy(g_nvs_config.filter_mac, s_good_mac, 6);
g_nvs_config.filter_mac_set = 1;
s_mac_filter_initialized = true;
ESP_LOGI(TAG, "MAC filter scenario: filter set to %02X:%02X:%02X:%02X:%02X:%02X",
s_good_mac[0], s_good_mac[1], s_good_mac[2],
s_good_mac[3], s_good_mac[4], s_good_mac[5]);
}
generate_person_iq(iq_buf, 3.0f, 0.0f, true, LAMBDA_CH6);
*channel = 6;
*rssi = -50;
/* Odd frames: simulate "wrong" MAC by skipping injection. */
if ((s_state.frame_count & 1) != 0) {
*skip_inject = true;
ESP_LOGD(TAG, "MAC filter: frame %lu skipped (bad MAC)",
(unsigned long)s_state.frame_count);
} else {
*skip_inject = false;
}
}
/**
* Scenario 7: Ring buffer overflow.
* Burst OVERFLOW_BURST_COUNT frames as fast as possible to test
* the SPSC ring buffer's overflow handling.
*/
static void gen_ring_overflow(uint8_t *iq_buf, uint8_t *channel, int8_t *rssi,
uint16_t *burst_count)
{
generate_person_iq(iq_buf, 3.0f, 0.0f, true, LAMBDA_CH6);
*channel = 6;
*rssi = -50;
/* Burst once on the first timer tick of this scenario. */
if (!s_overflow_burst_done) {
*burst_count = OVERFLOW_BURST_COUNT;
s_overflow_burst_done = true;
} else {
*burst_count = 1;
}
}
/**
* Scenario 8: Boundary RSSI sweep.
* Sweeps RSSI from -90 dBm to -10 dBm linearly over the scenario duration.
*/
static void gen_boundary_rssi(uint8_t *iq_buf, uint8_t *channel, int8_t *rssi)
{
int64_t elapsed = scenario_elapsed_ms();
uint32_t duration = CONFIG_CSI_MOCK_SCENARIO_DURATION_MS;
/* Linear sweep: -90 to -10 dBm. */
float frac = (float)elapsed / (float)duration;
if (frac > 1.0f) frac = 1.0f;
int8_t sweep_rssi = (int8_t)(-90.0f + 80.0f * frac);
generate_person_iq(iq_buf, 3.0f, 0.0f, true, LAMBDA_CH6);
*channel = 6;
*rssi = sweep_rssi;
}
/**
* Scenario 9: Zero-length I/Q.
* Injects a frame with iq_len = 0 to test error handling.
*/
/* Handled inline in the timer callback. */
/* ---- Scenario transition ---- */
/**
* Advance to the next scenario when running SCENARIO_ALL.
*/
/** Flag: set when all scenarios are done so timer callback exits early. */
static bool s_all_done = false;
static void advance_scenario(void)
{
s_state.all_idx++;
if (s_state.all_idx >= MOCK_SCENARIO_COUNT) {
ESP_LOGI(TAG, "All %d scenarios complete (%lu total frames)",
MOCK_SCENARIO_COUNT, (unsigned long)s_state.frame_count);
s_all_done = true;
return; /* Stop generating — timer callback will check s_all_done. */
}
s_state.scenario = s_state.all_idx;
s_state.scenario_start_ms = esp_timer_get_time() / 1000;
/* Reset per-scenario state. */
s_state.person_x = 1.0f;
s_state.person_speed = WALK_SPEED_MS;
s_state.person2_x = 4.0f;
s_state.person2_speed = WALK_SPEED_MS * 0.6f;
s_state.breathing_phase = 0.0f;
s_state.channel_idx = 0;
s_state.rssi_sweep = -90;
ESP_LOGI(TAG, "=== Scenario %u started ===", (unsigned)s_state.scenario);
}
/* ---- Timer callback ---- */
static void mock_timer_cb(void *arg)
{
(void)arg;
/* All scenarios finished — stop generating. */
if (s_all_done) {
return;
}
/* Check for scenario timeout in SCENARIO_ALL mode. */
if (s_state.scenario == MOCK_SCENARIO_ALL ||
(s_state.all_idx > 0 && s_state.all_idx < MOCK_SCENARIO_COUNT)) {
/* We're running in sequential mode. */
int64_t elapsed = scenario_elapsed_ms();
if (elapsed >= CONFIG_CSI_MOCK_SCENARIO_DURATION_MS) {
advance_scenario();
}
}
uint8_t iq_buf[MOCK_IQ_LEN];
uint8_t channel = 6;
int8_t rssi = -50;
uint16_t iq_len = MOCK_IQ_LEN;
uint16_t burst = 1;
bool skip = false;
uint8_t active_scenario = s_state.scenario;
switch (active_scenario) {
case MOCK_SCENARIO_EMPTY:
gen_empty(iq_buf, &channel, &rssi);
break;
case MOCK_SCENARIO_STATIC_PERSON:
gen_static_person(iq_buf, &channel, &rssi);
break;
case MOCK_SCENARIO_WALKING:
gen_walking(iq_buf, &channel, &rssi);
break;
case MOCK_SCENARIO_FALL:
gen_fall(iq_buf, &channel, &rssi);
break;
case MOCK_SCENARIO_MULTI_PERSON:
gen_multi_person(iq_buf, &channel, &rssi);
break;
case MOCK_SCENARIO_CHANNEL_SWEEP:
gen_channel_sweep(iq_buf, &channel, &rssi);
break;
case MOCK_SCENARIO_MAC_FILTER:
gen_mac_filter(iq_buf, &channel, &rssi, &skip);
break;
case MOCK_SCENARIO_RING_OVERFLOW:
gen_ring_overflow(iq_buf, &channel, &rssi, &burst);
break;
case MOCK_SCENARIO_BOUNDARY_RSSI:
gen_boundary_rssi(iq_buf, &channel, &rssi);
break;
case MOCK_SCENARIO_ZERO_LENGTH:
/* Deliberately inject zero-length data to test error path. */
iq_len = 0;
memset(iq_buf, 0, sizeof(iq_buf));
break;
default:
ESP_LOGW(TAG, "Unknown scenario %u, defaulting to empty", active_scenario);
gen_empty(iq_buf, &channel, &rssi);
break;
}
/* Inject frame(s) into the edge processing pipeline. */
if (!skip) {
for (uint16_t i = 0; i < burst; i++) {
edge_enqueue_csi(iq_buf, iq_len, rssi, channel);
s_state.frame_count++;
}
} else {
/* Count skipped frames for MAC filter validation. */
s_state.frame_count++;
}
/* Periodic logging (every 20 frames = 1 second). */
if ((s_state.frame_count % 20) == 0) {
ESP_LOGI(TAG, "scenario=%u frames=%lu ch=%u rssi=%d",
active_scenario, (unsigned long)s_state.frame_count,
(unsigned)channel, (int)rssi);
}
}
/* ---- Public API ---- */
esp_err_t mock_csi_init(uint8_t scenario)
{
if (s_timer != NULL) {
ESP_LOGW(TAG, "Mock CSI already running");
return ESP_ERR_INVALID_STATE;
}
/* Initialize state. */
memset(&s_state, 0, sizeof(s_state));
s_state.person_x = 1.0f;
s_state.person_speed = WALK_SPEED_MS;
s_state.person2_x = 4.0f;
s_state.person2_speed = WALK_SPEED_MS * 0.6f;
s_state.scenario_start_ms = esp_timer_get_time() / 1000;
s_all_done = false;
s_mac_filter_initialized = false;
s_overflow_burst_done = false;
/* Reset LFSR to deterministic seed. */
s_lfsr = 0xDEADBEEF;
if (scenario == MOCK_SCENARIO_ALL) {
s_state.scenario = 0;
s_state.all_idx = 0;
ESP_LOGI(TAG, "Mock CSI: running ALL %d scenarios sequentially (%u ms each)",
MOCK_SCENARIO_COUNT, CONFIG_CSI_MOCK_SCENARIO_DURATION_MS);
} else {
s_state.scenario = scenario;
s_state.all_idx = 0;
ESP_LOGI(TAG, "Mock CSI: scenario=%u, interval=%u ms, duration=%u ms",
(unsigned)scenario, MOCK_CSI_INTERVAL_MS,
CONFIG_CSI_MOCK_SCENARIO_DURATION_MS);
}
/* Create periodic timer. */
esp_timer_create_args_t timer_args = {
.callback = mock_timer_cb,
.arg = NULL,
.name = "mock_csi",
};
esp_err_t err = esp_timer_create(&timer_args, &s_timer);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to create mock CSI timer: %s", esp_err_to_name(err));
return err;
}
uint64_t period_us = (uint64_t)MOCK_CSI_INTERVAL_MS * 1000;
err = esp_timer_start_periodic(s_timer, period_us);
if (err != ESP_OK) {
ESP_LOGE(TAG, "Failed to start mock CSI timer: %s", esp_err_to_name(err));
esp_timer_delete(s_timer);
s_timer = NULL;
return err;
}
ESP_LOGI(TAG, "Mock CSI generator started (20 Hz, %u subcarriers, %u bytes/frame)",
MOCK_N_SUBCARRIERS, MOCK_IQ_LEN);
return ESP_OK;
}
void mock_csi_stop(void)
{
if (s_timer == NULL) {
return;
}
esp_timer_stop(s_timer);
esp_timer_delete(s_timer);
s_timer = NULL;
ESP_LOGI(TAG, "Mock CSI stopped after %lu frames",
(unsigned long)s_state.frame_count);
}
uint32_t mock_csi_get_frame_count(void)
{
return s_state.frame_count;
}
#endif /* CONFIG_CSI_MOCK_ENABLED */

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/**
* @file mock_csi.h
* @brief ADR-061 Mock CSI generator for ESP32-S3 QEMU testing.
*
* Generates synthetic CSI frames at 20 Hz using an esp_timer, injecting
* them directly into the edge processing pipeline via edge_enqueue_csi().
* Ten scenarios exercise the full signal processing and edge intelligence
* pipeline without requiring real WiFi hardware.
*
* Signal model per subcarrier k at time t:
* A_k(t) = A_base + A_person * exp(-d_k^2 / sigma^2) + noise
* phi_k(t) = phi_base + (2*pi*d / lambda) + breathing_mod(t) + noise
*
* Enable via: idf.py menuconfig -> CSI Mock Generator -> Enable
* Or add CONFIG_CSI_MOCK_ENABLED=y to sdkconfig.defaults.
*/
#ifndef MOCK_CSI_H
#define MOCK_CSI_H
#include <stdint.h>
#include "esp_err.h"
#ifdef __cplusplus
extern "C" {
#endif
/* ---- Timing ---- */
/** Mock CSI frame interval in milliseconds (20 Hz). */
#define MOCK_CSI_INTERVAL_MS 50
/* ---- HT20 subcarrier geometry ---- */
/** Number of OFDM subcarriers for HT20 (802.11n). */
#define MOCK_N_SUBCARRIERS 52
/** I/Q data length in bytes: 52 subcarriers * 2 bytes (I + Q). */
#define MOCK_IQ_LEN (MOCK_N_SUBCARRIERS * 2)
/* ---- Scenarios ---- */
/** Scenario identifiers for mock CSI generation. */
typedef enum {
MOCK_SCENARIO_EMPTY = 0, /**< Empty room: low-noise baseline. */
MOCK_SCENARIO_STATIC_PERSON = 1, /**< Static person: amplitude dip, no motion. */
MOCK_SCENARIO_WALKING = 2, /**< Walking person: moving reflector. */
MOCK_SCENARIO_FALL = 3, /**< Fall event: abrupt phase acceleration. */
MOCK_SCENARIO_MULTI_PERSON = 4, /**< Multiple people at different positions. */
MOCK_SCENARIO_CHANNEL_SWEEP = 5, /**< Sweep through channels 1, 6, 11, 36. */
MOCK_SCENARIO_MAC_FILTER = 6, /**< Alternate correct/wrong MAC for filter test. */
MOCK_SCENARIO_RING_OVERFLOW = 7, /**< Burst 1000 frames rapidly to overflow ring. */
MOCK_SCENARIO_BOUNDARY_RSSI = 8, /**< Sweep RSSI from -90 to -10 dBm. */
MOCK_SCENARIO_ZERO_LENGTH = 9, /**< Zero-length I/Q payload (error case). */
MOCK_SCENARIO_COUNT = 10, /**< Total number of individual scenarios. */
MOCK_SCENARIO_ALL = 255 /**< Meta: run all scenarios sequentially. */
} mock_scenario_t;
/* ---- State ---- */
/** Internal state for the mock CSI generator. */
typedef struct {
uint8_t scenario; /**< Current active scenario. */
uint32_t frame_count; /**< Total frames emitted since init. */
float person_x; /**< Person X position in meters (walking). */
float person_speed; /**< Person movement speed in m/s. */
float breathing_phase; /**< Breathing oscillator phase in radians. */
float person2_x; /**< Second person X position (multi-person). */
float person2_speed; /**< Second person movement speed. */
uint8_t channel_idx; /**< Index into channel sweep table. */
int8_t rssi_sweep; /**< Current RSSI for boundary sweep. */
int64_t scenario_start_ms; /**< Timestamp when current scenario started. */
uint8_t all_idx; /**< Current scenario index in SCENARIO_ALL mode. */
} mock_state_t;
/**
* Initialize and start the mock CSI generator.
*
* Creates a periodic esp_timer that fires every MOCK_CSI_INTERVAL_MS
* and injects synthetic CSI frames into edge_enqueue_csi().
*
* @param scenario Scenario to run (0-9), or MOCK_SCENARIO_ALL (255)
* to run all scenarios sequentially.
* @return ESP_OK on success, ESP_ERR_INVALID_STATE if already running.
*/
esp_err_t mock_csi_init(uint8_t scenario);
/**
* Stop and destroy the mock CSI timer.
*
* Safe to call even if the timer is not running.
*/
void mock_csi_stop(void);
/**
* Get the total number of mock frames emitted since init.
*
* @return Frame count (useful for test validation).
*/
uint32_t mock_csi_get_frame_count(void);
#ifdef __cplusplus
}
#endif
#endif /* MOCK_CSI_H */

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# sdkconfig.coverage -- ESP-IDF sdkconfig overlay for gcov/lcov code coverage
#
# This overlay enables GCC code coverage instrumentation (gcov) and the
# application-level trace (apptrace) channel required to extract .gcda
# files from the target via JTAG/QEMU GDB.
#
# Usage (combine with sdkconfig.defaults as the base):
#
# idf.py -D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.coverage" build
#
# After running the firmware under QEMU, dump coverage data through GDB:
#
# (gdb) mon gcov dump
#
# Then process the .gcda files on the host with lcov/genhtml:
#
# lcov --capture --directory build --output-file coverage.info \
# --gcov-tool xtensa-esp-elf-gcov
# genhtml coverage.info --output-directory coverage_html
# ---------------------------------------------------------------------------
# Compiler: disable optimizations so every source line maps 1:1 to object code
# ---------------------------------------------------------------------------
CONFIG_COMPILER_OPTIMIZATION_NONE=y
# ---------------------------------------------------------------------------
# Application-level trace: enables the gcov data channel over JTAG
# ---------------------------------------------------------------------------
CONFIG_APPTRACE_ENABLE=y
CONFIG_APPTRACE_DEST_JTAG=y
# ---------------------------------------------------------------------------
# CSI mock mode: identical to sdkconfig.qemu so coverage runs use the same
# deterministic mock data path (no real WiFi hardware needed)
# ---------------------------------------------------------------------------
CONFIG_CSI_MOCK_ENABLED=y
CONFIG_CSI_MOCK_SKIP_WIFI_CONNECT=y
CONFIG_CSI_MOCK_SCENARIO=255
CONFIG_CSI_TARGET_IP="10.0.2.2"
CONFIG_CSI_MOCK_SCENARIO_DURATION_MS=5000
CONFIG_CSI_MOCK_LOG_FRAMES=y
# ---------------------------------------------------------------------------
# FreeRTOS and watchdog: match sdkconfig.qemu for QEMU timing tolerance
# ---------------------------------------------------------------------------
CONFIG_FREERTOS_TIMER_TASK_STACK_DEPTH=4096
CONFIG_ESP_TASK_WDT_TIMEOUT_S=30
CONFIG_ESP_INT_WDT_TIMEOUT_MS=800
# ---------------------------------------------------------------------------
# Logging and display
# ---------------------------------------------------------------------------
CONFIG_LOG_DEFAULT_LEVEL_INFO=y
CONFIG_DISPLAY_ENABLE=n

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# QEMU ESP32-S3 sdkconfig overlay (ADR-061)
#
# Merge with: idf.py -D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.qemu" build
# ---- Mock CSI generator (replaces real WiFi CSI) ----
CONFIG_CSI_MOCK_ENABLED=y
CONFIG_CSI_MOCK_SKIP_WIFI_CONNECT=y
CONFIG_CSI_MOCK_SCENARIO=255
CONFIG_CSI_MOCK_SCENARIO_DURATION_MS=5000
CONFIG_CSI_MOCK_LOG_FRAMES=y
# ---- Network (QEMU SLIRP provides 10.0.2.x) ----
CONFIG_CSI_TARGET_IP="10.0.2.2"
# ---- Logging (verbose for validation) ----
CONFIG_LOG_DEFAULT_LEVEL_INFO=y
# ---- FreeRTOS tuning for QEMU ----
# Increase timer task stack to prevent overflow from mock_csi timer callback
CONFIG_FREERTOS_TIMER_TASK_STACK_DEPTH=4096
# ---- Watchdog (relaxed for emulation — QEMU timing is not cycle-accurate) ----
CONFIG_ESP_TASK_WDT_TIMEOUT_S=30
CONFIG_ESP_INT_WDT_TIMEOUT_MS=800
# ---- Disable hardware-dependent features ----
CONFIG_DISPLAY_ENABLE=n

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# Makefile for ESP32 CSI firmware fuzz testing targets (ADR-061 Layer 6).
#
# Requirements:
# - clang with libFuzzer support (clang 6.0+)
# - Linux or macOS (host-based fuzzing, no ESP-IDF needed)
#
# Usage:
# make all # Build all fuzz targets
# make fuzz_serialize # Build serialize target only
# make fuzz_edge # Build edge enqueue target only
# make fuzz_nvs # Build NVS config target only
# make run_serialize # Build and run serialize fuzzer (30s)
# make run_edge # Build and run edge fuzzer (30s)
# make run_nvs # Build and run NVS fuzzer (30s)
# make run_all # Run all fuzzers (30s each)
# make clean # Remove build artifacts
#
# Environment variables:
# FUZZ_DURATION=60 # Override fuzz duration in seconds
# FUZZ_JOBS=4 # Parallel fuzzing jobs
CC = clang
CFLAGS = -fsanitize=fuzzer,address,undefined -g -O1 \
-Istubs -I../main \
-DCONFIG_CSI_NODE_ID=1 \
-DCONFIG_CSI_WIFI_CHANNEL=6 \
-DCONFIG_CSI_WIFI_SSID=\"test\" \
-DCONFIG_CSI_TARGET_IP=\"192.168.1.1\" \
-DCONFIG_CSI_TARGET_PORT=5500 \
-DCONFIG_ESP_WIFI_CSI_ENABLED=1 \
-Wno-unused-function
STUBS_SRC = stubs/esp_stubs.c
MAIN_DIR = ../main
# Default fuzz duration (seconds) and jobs
FUZZ_DURATION ?= 30
FUZZ_JOBS ?= 1
.PHONY: all clean run_serialize run_edge run_nvs run_all
all: fuzz_serialize fuzz_edge fuzz_nvs
# --- Serialize fuzzer ---
# Tests csi_serialize_frame() with random wifi_csi_info_t inputs.
# Links against the real csi_collector.c (with stubs for ESP-IDF).
fuzz_serialize: fuzz_csi_serialize.c $(MAIN_DIR)/csi_collector.c $(STUBS_SRC)
$(CC) $(CFLAGS) $^ -o $@ -lm
# --- Edge enqueue fuzzer ---
# Tests the SPSC ring buffer push/pop logic with rapid-fire enqueues.
# Self-contained: reproduces ring buffer logic from edge_processing.c.
fuzz_edge: fuzz_edge_enqueue.c $(STUBS_SRC)
$(CC) $(CFLAGS) $^ -o $@ -lm
# --- NVS config validation fuzzer ---
# Tests all NVS config validation ranges with random values.
# Self-contained: reproduces validation logic from nvs_config.c.
fuzz_nvs: fuzz_nvs_config.c $(STUBS_SRC)
$(CC) $(CFLAGS) $^ -o $@ -lm
# --- Run targets ---
run_serialize: fuzz_serialize
@mkdir -p corpus_serialize
./fuzz_serialize corpus_serialize/ -max_total_time=$(FUZZ_DURATION) -max_len=2048 -jobs=$(FUZZ_JOBS)
run_edge: fuzz_edge
@mkdir -p corpus_edge
./fuzz_edge corpus_edge/ -max_total_time=$(FUZZ_DURATION) -max_len=4096 -jobs=$(FUZZ_JOBS)
run_nvs: fuzz_nvs
@mkdir -p corpus_nvs
./fuzz_nvs corpus_nvs/ -max_total_time=$(FUZZ_DURATION) -max_len=256 -jobs=$(FUZZ_JOBS)
run_all: run_serialize run_edge run_nvs
clean:
rm -f fuzz_serialize fuzz_edge fuzz_nvs
rm -rf corpus_serialize/ corpus_edge/ corpus_nvs/

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/**
* @file fuzz_csi_serialize.c
* @brief libFuzzer target for csi_serialize_frame() (ADR-061 Layer 6).
*
* Takes fuzz input and constructs wifi_csi_info_t structs with random
* field values including extreme boundaries. Verifies that
* csi_serialize_frame() never crashes, triggers ASAN, or causes UBSAN.
*
* Build (Linux/macOS with clang):
* make fuzz_serialize
*
* Run:
* ./fuzz_serialize corpus/ -max_len=2048
*/
#include "esp_stubs.h"
/* Provide the globals that csi_collector.c references. */
#include "nvs_config.h"
nvs_config_t g_nvs_config;
/* Pull in the serialization function. */
#include "csi_collector.h"
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include <stdlib.h>
/**
* Helper: read a value from the fuzz data, advancing the cursor.
* Returns 0 if insufficient data remains.
*/
static size_t fuzz_read(const uint8_t **data, size_t *size,
void *out, size_t n)
{
if (*size < n) {
memset(out, 0, n);
return 0;
}
memcpy(out, *data, n);
*data += n;
*size -= n;
return n;
}
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
if (size < 8) {
return 0; /* Need at least a few control bytes. */
}
const uint8_t *cursor = data;
size_t remaining = size;
/* Parse control bytes from fuzz input. */
uint8_t test_case;
int16_t iq_len_raw;
int8_t rssi;
uint8_t channel;
int8_t noise_floor;
uint8_t out_buf_scale; /* Controls output buffer size: 0-255. */
fuzz_read(&cursor, &remaining, &test_case, 1);
fuzz_read(&cursor, &remaining, &iq_len_raw, 2);
fuzz_read(&cursor, &remaining, &rssi, 1);
fuzz_read(&cursor, &remaining, &channel, 1);
fuzz_read(&cursor, &remaining, &noise_floor, 1);
fuzz_read(&cursor, &remaining, &out_buf_scale, 1);
/* --- Test case 0: Normal operation with fuzz-controlled values --- */
wifi_csi_info_t info;
memset(&info, 0, sizeof(info));
info.rx_ctrl.rssi = rssi;
info.rx_ctrl.channel = channel & 0x0F; /* 4-bit field */
info.rx_ctrl.noise_floor = noise_floor;
/* Use remaining fuzz data as I/Q buffer content. */
uint16_t iq_len;
if (iq_len_raw < 0) {
iq_len = 0;
} else if (iq_len_raw > (int16_t)remaining) {
iq_len = (uint16_t)remaining;
} else {
iq_len = (uint16_t)iq_len_raw;
}
int8_t iq_buf[CSI_MAX_FRAME_SIZE];
if (iq_len > 0 && remaining > 0) {
uint16_t copy = (iq_len > remaining) ? (uint16_t)remaining : iq_len;
memcpy(iq_buf, cursor, copy);
/* Zero-fill the rest if iq_len > available data. */
if (copy < iq_len) {
memset(iq_buf + copy, 0, iq_len - copy);
}
info.buf = iq_buf;
} else {
info.buf = iq_buf;
memset(iq_buf, 0, sizeof(iq_buf));
}
info.len = (int16_t)iq_len;
/* Output buffer: scale from tiny (1 byte) to full size. */
uint8_t out_buf[CSI_MAX_FRAME_SIZE + 64];
size_t out_len;
if (out_buf_scale == 0) {
out_len = 0;
} else if (out_buf_scale < 20) {
/* Small buffer: test buffer-too-small path. */
out_len = (size_t)out_buf_scale;
} else {
/* Normal/large buffer. */
out_len = sizeof(out_buf);
}
/* Call the function under test. Must not crash. */
size_t result = csi_serialize_frame(&info, out_buf, out_len);
/* Basic sanity: result must be 0 (error) or <= out_len. */
if (result > out_len) {
__builtin_trap(); /* Buffer overflow detected. */
}
/* --- Test case 1: NULL info pointer --- */
if (test_case & 0x01) {
result = csi_serialize_frame(NULL, out_buf, sizeof(out_buf));
if (result != 0) {
__builtin_trap(); /* NULL info should return 0. */
}
}
/* --- Test case 2: NULL output buffer --- */
if (test_case & 0x02) {
result = csi_serialize_frame(&info, NULL, sizeof(out_buf));
if (result != 0) {
__builtin_trap(); /* NULL buf should return 0. */
}
}
/* --- Test case 3: NULL I/Q buffer in info --- */
if (test_case & 0x04) {
wifi_csi_info_t null_iq_info = info;
null_iq_info.buf = NULL;
result = csi_serialize_frame(&null_iq_info, out_buf, sizeof(out_buf));
if (result != 0) {
__builtin_trap(); /* NULL info->buf should return 0. */
}
}
/* --- Test case 4: Extreme channel values --- */
if (test_case & 0x08) {
wifi_csi_info_t extreme_info = info;
extreme_info.buf = iq_buf;
/* Channel 0 (invalid). */
extreme_info.rx_ctrl.channel = 0;
csi_serialize_frame(&extreme_info, out_buf, sizeof(out_buf));
/* Channel 15 (max 4-bit value, invalid for WiFi). */
extreme_info.rx_ctrl.channel = 15;
csi_serialize_frame(&extreme_info, out_buf, sizeof(out_buf));
}
/* --- Test case 5: Extreme RSSI values --- */
if (test_case & 0x10) {
wifi_csi_info_t rssi_info = info;
rssi_info.buf = iq_buf;
rssi_info.rx_ctrl.rssi = -128;
csi_serialize_frame(&rssi_info, out_buf, sizeof(out_buf));
rssi_info.rx_ctrl.rssi = 127;
csi_serialize_frame(&rssi_info, out_buf, sizeof(out_buf));
}
/* --- Test case 6: Zero-length I/Q --- */
if (test_case & 0x20) {
wifi_csi_info_t zero_info = info;
zero_info.buf = iq_buf;
zero_info.len = 0;
result = csi_serialize_frame(&zero_info, out_buf, sizeof(out_buf));
/* len=0 means frame_size = CSI_HEADER_SIZE + 0 = 20 bytes. */
if (result != 0 && result != CSI_HEADER_SIZE) {
/* Either 0 (rejected) or exactly the header size is acceptable. */
}
}
/* --- Test case 7: Output buffer exactly header size --- */
if (test_case & 0x40) {
wifi_csi_info_t hdr_info = info;
hdr_info.buf = iq_buf;
hdr_info.len = 4; /* Small I/Q. */
/* Buffer exactly header_size + iq_len = 24 bytes. */
uint8_t tight_buf[CSI_HEADER_SIZE + 4];
result = csi_serialize_frame(&hdr_info, tight_buf, sizeof(tight_buf));
if (result > sizeof(tight_buf)) {
__builtin_trap();
}
}
return 0;
}

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/**
* @file fuzz_edge_enqueue.c
* @brief libFuzzer target for edge_enqueue_csi() (ADR-061 Layer 6).
*
* Rapid-fire enqueues with varying iq_len from 0 to beyond
* EDGE_MAX_IQ_BYTES, testing the SPSC ring buffer overflow behavior
* and verifying no out-of-bounds writes occur.
*
* Build (Linux/macOS with clang):
* make fuzz_edge
*
* Run:
* ./fuzz_edge corpus/ -max_len=4096
*/
#include "esp_stubs.h"
/*
* We cannot include edge_processing.c directly because it references
* FreeRTOS task creation and other ESP-IDF APIs in edge_processing_init().
* Instead, we re-implement the SPSC ring buffer and edge_enqueue_csi()
* logic identically to the production code, testing the same algorithm.
*/
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include <stdlib.h>
/* ---- Reproduce the ring buffer from edge_processing.h ---- */
#define EDGE_RING_SLOTS 16
#define EDGE_MAX_IQ_BYTES 1024
#define EDGE_MAX_SUBCARRIERS 128
typedef struct {
uint8_t iq_data[EDGE_MAX_IQ_BYTES];
uint16_t iq_len;
int8_t rssi;
uint8_t channel;
uint32_t timestamp_us;
} fuzz_ring_slot_t;
typedef struct {
fuzz_ring_slot_t slots[EDGE_RING_SLOTS];
volatile uint32_t head;
volatile uint32_t tail;
} fuzz_ring_buf_t;
static fuzz_ring_buf_t s_ring;
/**
* ring_push: identical logic to edge_processing.c::ring_push().
* This is the code path exercised by edge_enqueue_csi().
*/
static bool ring_push(const uint8_t *iq, uint16_t len,
int8_t rssi, uint8_t channel)
{
uint32_t next = (s_ring.head + 1) % EDGE_RING_SLOTS;
if (next == s_ring.tail) {
return false; /* Full. */
}
fuzz_ring_slot_t *slot = &s_ring.slots[s_ring.head];
uint16_t copy_len = (len > EDGE_MAX_IQ_BYTES) ? EDGE_MAX_IQ_BYTES : len;
memcpy(slot->iq_data, iq, copy_len);
slot->iq_len = copy_len;
slot->rssi = rssi;
slot->channel = channel;
slot->timestamp_us = (uint32_t)(esp_timer_get_time() & 0xFFFFFFFF);
__sync_synchronize();
s_ring.head = next;
return true;
}
/**
* ring_pop: identical logic to edge_processing.c::ring_pop().
*/
static bool ring_pop(fuzz_ring_slot_t *out)
{
if (s_ring.tail == s_ring.head) {
return false;
}
memcpy(out, &s_ring.slots[s_ring.tail], sizeof(fuzz_ring_slot_t));
__sync_synchronize();
s_ring.tail = (s_ring.tail + 1) % EDGE_RING_SLOTS;
return true;
}
/**
* Canary pattern: write to a buffer zone after ring memory to detect
* out-of-bounds writes. If the canary is overwritten, we trap.
*/
#define CANARY_SIZE 64
#define CANARY_BYTE 0xCD
static uint8_t s_canary_before[CANARY_SIZE];
/* s_ring is between the canaries (static allocation order not guaranteed,
* but ASAN will catch OOB writes regardless). */
static uint8_t s_canary_after[CANARY_SIZE];
static void init_canaries(void)
{
memset(s_canary_before, CANARY_BYTE, CANARY_SIZE);
memset(s_canary_after, CANARY_BYTE, CANARY_SIZE);
}
static void check_canaries(void)
{
for (int i = 0; i < CANARY_SIZE; i++) {
if (s_canary_before[i] != CANARY_BYTE) __builtin_trap();
if (s_canary_after[i] != CANARY_BYTE) __builtin_trap();
}
}
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
if (size < 4) return 0;
/* Reset ring buffer state for each fuzz iteration. */
memset(&s_ring, 0, sizeof(s_ring));
init_canaries();
const uint8_t *cursor = data;
size_t remaining = size;
/*
* Protocol: each "enqueue command" is:
* [0..1] iq_len (LE u16)
* [2] rssi (i8)
* [3] channel (u8)
* [4..] iq_data (up to iq_len bytes, zero-padded if short)
*
* We consume commands until data is exhausted.
*/
uint32_t enqueue_count = 0;
uint32_t full_count = 0;
uint32_t pop_count = 0;
while (remaining >= 4) {
uint16_t iq_len = (uint16_t)cursor[0] | ((uint16_t)cursor[1] << 8);
int8_t rssi = (int8_t)cursor[2];
uint8_t channel = cursor[3];
cursor += 4;
remaining -= 4;
/* Prepare I/Q data buffer.
* Even if iq_len > EDGE_MAX_IQ_BYTES, we pass it to ring_push
* which must clamp it internally. We need a source buffer that
* is at least iq_len bytes to avoid reading OOB. */
uint8_t iq_buf[EDGE_MAX_IQ_BYTES + 128];
memset(iq_buf, 0, sizeof(iq_buf));
/* Copy available fuzz data into iq_buf. */
uint16_t avail = (remaining > sizeof(iq_buf))
? (uint16_t)sizeof(iq_buf)
: (uint16_t)remaining;
if (avail > 0) {
memcpy(iq_buf, cursor, avail);
}
/* Advance cursor past the I/Q data portion.
* We consume min(iq_len, remaining) bytes. */
uint16_t consume = (iq_len > remaining) ? (uint16_t)remaining : iq_len;
cursor += consume;
remaining -= consume;
/* The key test: iq_len can be 0, normal, EDGE_MAX_IQ_BYTES,
* or larger (up to 65535). ring_push must clamp to EDGE_MAX_IQ_BYTES. */
bool ok = ring_push(iq_buf, iq_len, rssi, channel);
if (ok) {
enqueue_count++;
} else {
full_count++;
/* When ring is full, drain one slot to make room.
* This tests the interleaved push/pop pattern. */
fuzz_ring_slot_t popped;
if (ring_pop(&popped)) {
pop_count++;
/* Verify popped data is sane. */
if (popped.iq_len > EDGE_MAX_IQ_BYTES) {
__builtin_trap(); /* Clamping failed. */
}
}
/* Retry the enqueue after popping. */
ring_push(iq_buf, iq_len, rssi, channel);
}
/* Periodically check canaries. */
if ((enqueue_count + full_count) % 8 == 0) {
check_canaries();
}
}
/* Drain remaining items and verify each. */
fuzz_ring_slot_t popped;
while (ring_pop(&popped)) {
pop_count++;
if (popped.iq_len > EDGE_MAX_IQ_BYTES) {
__builtin_trap();
}
}
/* Final canary check. */
check_canaries();
/* Verify ring is now empty. */
if (s_ring.head != s_ring.tail) {
__builtin_trap();
}
return 0;
}

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/**
* @file fuzz_nvs_config.c
* @brief libFuzzer target for NVS config validation logic (ADR-061 Layer 6).
*
* Since we cannot easily mock the full ESP-IDF NVS API under libFuzzer,
* this target extracts and tests the validation ranges used by
* nvs_config_load() when processing NVS values. Each validation check
* from nvs_config.c is reproduced here with fuzz-driven inputs.
*
* Build (Linux/macOS with clang):
* clang -fsanitize=fuzzer,address -g -I stubs fuzz_nvs_config.c \
* stubs/esp_stubs.c -o fuzz_nvs_config -lm
*
* Run:
* ./fuzz_nvs_config corpus/ -max_len=256
*/
#include "esp_stubs.h"
#include "nvs_config.h"
#include <stdint.h>
#include <stddef.h>
#include <string.h>
/**
* Validate a hop_count value using the same logic as nvs_config_load().
* Returns the validated value (0 = rejected).
*/
static uint8_t validate_hop_count(uint8_t val)
{
if (val >= 1 && val <= NVS_CFG_HOP_MAX) return val;
return 0;
}
/**
* Validate dwell_ms using the same logic as nvs_config_load().
* Returns the validated value (0 = rejected).
*/
static uint32_t validate_dwell_ms(uint32_t val)
{
if (val >= 10) return val;
return 0;
}
/**
* Validate TDM node count.
*/
static uint8_t validate_tdm_node_count(uint8_t val)
{
if (val >= 1) return val;
return 0;
}
/**
* Validate edge_tier (0-2).
*/
static uint8_t validate_edge_tier(uint8_t val)
{
if (val <= 2) return val;
return 0xFF; /* Invalid. */
}
/**
* Validate vital_window (32-256).
*/
static uint16_t validate_vital_window(uint16_t val)
{
if (val >= 32 && val <= 256) return val;
return 0;
}
/**
* Validate vital_interval_ms (>= 100).
*/
static uint16_t validate_vital_interval(uint16_t val)
{
if (val >= 100) return val;
return 0;
}
/**
* Validate top_k_count (1-32).
*/
static uint8_t validate_top_k(uint8_t val)
{
if (val >= 1 && val <= 32) return val;
return 0;
}
/**
* Validate power_duty (10-100).
*/
static uint8_t validate_power_duty(uint8_t val)
{
if (val >= 10 && val <= 100) return val;
return 0;
}
/**
* Validate wasm_max_modules (1-8).
*/
static uint8_t validate_wasm_max(uint8_t val)
{
if (val >= 1 && val <= 8) return val;
return 0;
}
/**
* Validate CSI channel: 1-14 (2.4 GHz) or 36-177 (5 GHz).
*/
static uint8_t validate_csi_channel(uint8_t val)
{
if ((val >= 1 && val <= 14) || (val >= 36 && val <= 177)) return val;
return 0;
}
/**
* Validate tdm_slot_index < tdm_node_count (clamp to 0 on violation).
*/
static uint8_t validate_tdm_slot(uint8_t slot, uint8_t node_count)
{
if (slot >= node_count) return 0;
return slot;
}
/**
* Test string field handling: ensure NVS_CFG_SSID_MAX length is respected.
*/
static void test_string_bounds(const uint8_t *data, size_t len)
{
char ssid[NVS_CFG_SSID_MAX];
char password[NVS_CFG_PASS_MAX];
char ip[NVS_CFG_IP_MAX];
/* Simulate strncpy with NVS_CFG_*_MAX bounds. */
size_t ssid_len = (len > NVS_CFG_SSID_MAX - 1) ? NVS_CFG_SSID_MAX - 1 : len;
memcpy(ssid, data, ssid_len);
ssid[ssid_len] = '\0';
size_t pass_len = (len > NVS_CFG_PASS_MAX - 1) ? NVS_CFG_PASS_MAX - 1 : len;
memcpy(password, data, pass_len);
password[pass_len] = '\0';
size_t ip_len = (len > NVS_CFG_IP_MAX - 1) ? NVS_CFG_IP_MAX - 1 : len;
memcpy(ip, data, ip_len);
ip[ip_len] = '\0';
/* Ensure null termination holds. */
if (ssid[NVS_CFG_SSID_MAX - 1] != '\0' && ssid_len == NVS_CFG_SSID_MAX - 1) {
/* OK: we set terminator above. */
}
}
/**
* Test presence_thresh and fall_thresh fixed-point conversion.
* nvs_config.c stores as u16 with value * 1000.
*/
static void test_thresh_conversion(uint16_t pres_raw, uint16_t fall_raw)
{
float pres = (float)pres_raw / 1000.0f;
float fall = (float)fall_raw / 1000.0f;
/* Ensure no NaN or Inf from valid integer inputs. */
if (pres != pres) __builtin_trap(); /* NaN check. */
if (fall != fall) __builtin_trap(); /* NaN check. */
/* Range: 0.0 to 65.535 for u16/1000. Both should be finite. */
if (pres < 0.0f || pres > 65.536f) __builtin_trap();
if (fall < 0.0f || fall > 65.536f) __builtin_trap();
}
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
if (size < 32) return 0;
const uint8_t *p = data;
/* Extract fuzz-driven config field values. */
uint8_t hop_count = p[0];
uint32_t dwell_ms = (uint32_t)p[1] | ((uint32_t)p[2] << 8)
| ((uint32_t)p[3] << 16) | ((uint32_t)p[4] << 24);
uint8_t tdm_slot = p[5];
uint8_t tdm_nodes = p[6];
uint8_t edge_tier = p[7];
uint16_t vital_win = (uint16_t)p[8] | ((uint16_t)p[9] << 8);
uint16_t vital_int = (uint16_t)p[10] | ((uint16_t)p[11] << 8);
uint8_t top_k = p[12];
uint8_t power_duty = p[13];
uint8_t wasm_max = p[14];
uint8_t csi_channel = p[15];
uint16_t pres_thresh = (uint16_t)p[16] | ((uint16_t)p[17] << 8);
uint16_t fall_thresh = (uint16_t)p[18] | ((uint16_t)p[19] << 8);
uint8_t node_id = p[20];
uint16_t target_port = (uint16_t)p[21] | ((uint16_t)p[22] << 8);
uint8_t wasm_verify = p[23];
/* Run all validators. These must not crash regardless of input. */
(void)validate_hop_count(hop_count);
(void)validate_dwell_ms(dwell_ms);
(void)validate_tdm_node_count(tdm_nodes);
(void)validate_edge_tier(edge_tier);
(void)validate_vital_window(vital_win);
(void)validate_vital_interval(vital_int);
(void)validate_top_k(top_k);
(void)validate_power_duty(power_duty);
(void)validate_wasm_max(wasm_max);
(void)validate_csi_channel(csi_channel);
/* Validate TDM slot with validated node count. */
uint8_t valid_nodes = validate_tdm_node_count(tdm_nodes);
if (valid_nodes > 0) {
(void)validate_tdm_slot(tdm_slot, valid_nodes);
}
/* Test threshold conversions. */
test_thresh_conversion(pres_thresh, fall_thresh);
/* Test string field bounds with remaining data. */
if (size > 24) {
test_string_bounds(data + 24, size - 24);
}
/* Construct a full nvs_config_t and verify field assignments don't overflow. */
nvs_config_t cfg;
memset(&cfg, 0, sizeof(cfg));
cfg.target_port = target_port;
cfg.node_id = node_id;
uint8_t valid_hop = validate_hop_count(hop_count);
cfg.channel_hop_count = valid_hop ? valid_hop : 1;
/* Fill channel list from fuzz data. */
for (uint8_t i = 0; i < NVS_CFG_HOP_MAX && (24 + i) < size; i++) {
cfg.channel_list[i] = data[24 + i];
}
cfg.dwell_ms = validate_dwell_ms(dwell_ms) ? dwell_ms : 50;
cfg.tdm_slot_index = 0;
cfg.tdm_node_count = valid_nodes ? valid_nodes : 1;
if (cfg.tdm_slot_index >= cfg.tdm_node_count) {
cfg.tdm_slot_index = 0;
}
uint8_t valid_tier = validate_edge_tier(edge_tier);
cfg.edge_tier = (valid_tier != 0xFF) ? valid_tier : 2;
cfg.presence_thresh = (float)pres_thresh / 1000.0f;
cfg.fall_thresh = (float)fall_thresh / 1000.0f;
uint16_t valid_win = validate_vital_window(vital_win);
cfg.vital_window = valid_win ? valid_win : 256;
uint16_t valid_int = validate_vital_interval(vital_int);
cfg.vital_interval_ms = valid_int ? valid_int : 1000;
uint8_t valid_topk = validate_top_k(top_k);
cfg.top_k_count = valid_topk ? valid_topk : 8;
uint8_t valid_duty = validate_power_duty(power_duty);
cfg.power_duty = valid_duty ? valid_duty : 100;
uint8_t valid_wasm = validate_wasm_max(wasm_max);
cfg.wasm_max_modules = valid_wasm ? valid_wasm : 4;
cfg.wasm_verify = wasm_verify ? 1 : 0;
uint8_t valid_ch = validate_csi_channel(csi_channel);
cfg.csi_channel = valid_ch;
/* MAC filter: use 6 bytes from fuzz data if available. */
if (size >= 32) {
memcpy(cfg.filter_mac, data + 24, 6);
cfg.filter_mac_set = (data[30] & 0x01) ? 1 : 0;
}
/* Verify struct is self-consistent — no field should be in an impossible state. */
if (cfg.channel_hop_count > NVS_CFG_HOP_MAX) __builtin_trap();
if (cfg.tdm_slot_index >= cfg.tdm_node_count) __builtin_trap();
if (cfg.edge_tier > 2) __builtin_trap();
if (cfg.wasm_max_modules > 8 || cfg.wasm_max_modules < 1) __builtin_trap();
if (cfg.top_k_count > 32 || cfg.top_k_count < 1) __builtin_trap();
if (cfg.power_duty > 100 || cfg.power_duty < 10) __builtin_trap();
return 0;
}

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/* Stub: redirect to unified stubs header. */
#ifndef ESP_ERR_H_STUB
#define ESP_ERR_H_STUB
#include "esp_stubs.h"
#endif

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/* Stub: redirect to unified stubs header. */
#ifndef ESP_LOG_H_STUB
#define ESP_LOG_H_STUB
#include "esp_stubs.h"
#endif

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/**
* @file esp_stubs.c
* @brief Implementation of ESP-IDF stubs for host-based fuzz testing.
*
* Must be compiled with: -Istubs -I../main
* so that ESP-IDF headers resolve to stubs/ and firmware headers
* resolve to ../main/.
*/
#include "esp_stubs.h"
#include "edge_processing.h"
#include "wasm_runtime.h"
#include <stdint.h>
/** Monotonically increasing microsecond counter for esp_timer_get_time(). */
static int64_t s_fake_time_us = 0;
int64_t esp_timer_get_time(void)
{
/* Advance by 50ms each call (~20 Hz CSI rate simulation). */
s_fake_time_us += 50000;
return s_fake_time_us;
}
/* ---- stream_sender stubs ---- */
int stream_sender_send(const uint8_t *data, size_t len)
{
(void)data;
return (int)len;
}
int stream_sender_init(void)
{
return 0;
}
int stream_sender_init_with(const char *ip, uint16_t port)
{
(void)ip; (void)port;
return 0;
}
void stream_sender_deinit(void)
{
}
/* ---- wasm_runtime stubs ---- */
void wasm_runtime_on_frame(const float *phases, const float *amplitudes,
const float *variances, uint16_t n_sc,
const edge_vitals_pkt_t *vitals)
{
(void)phases; (void)amplitudes; (void)variances;
(void)n_sc; (void)vitals;
}
esp_err_t wasm_runtime_init(void) { return ESP_OK; }
esp_err_t wasm_runtime_load(const uint8_t *d, uint32_t l, uint8_t *id) { (void)d; (void)l; (void)id; return ESP_OK; }
esp_err_t wasm_runtime_start(uint8_t id) { (void)id; return ESP_OK; }
esp_err_t wasm_runtime_stop(uint8_t id) { (void)id; return ESP_OK; }
esp_err_t wasm_runtime_unload(uint8_t id) { (void)id; return ESP_OK; }
void wasm_runtime_on_timer(void) {}
void wasm_runtime_get_info(wasm_module_info_t *info, uint8_t *count) { (void)info; if(count) *count = 0; }
esp_err_t wasm_runtime_set_manifest(uint8_t id, const char *n, uint32_t c, uint32_t m) { (void)id; (void)n; (void)c; (void)m; return ESP_OK; }

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/**
* @file esp_stubs.h
* @brief Minimal ESP-IDF type stubs for host-based fuzz testing.
*
* Provides just enough type definitions and macros to compile
* csi_collector.c and edge_processing.c on a Linux/macOS host
* without the full ESP-IDF SDK.
*/
#ifndef ESP_STUBS_H
#define ESP_STUBS_H
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
/* ---- esp_err.h ---- */
typedef int esp_err_t;
#define ESP_OK 0
#define ESP_FAIL (-1)
#define ESP_ERR_NO_MEM 0x101
#define ESP_ERR_INVALID_ARG 0x102
/* ---- esp_log.h ---- */
#define ESP_LOGI(tag, fmt, ...) ((void)0)
#define ESP_LOGW(tag, fmt, ...) ((void)0)
#define ESP_LOGE(tag, fmt, ...) ((void)0)
#define ESP_LOGD(tag, fmt, ...) ((void)0)
#define ESP_ERROR_CHECK(x) ((void)(x))
/* ---- esp_timer.h ---- */
typedef void *esp_timer_handle_t;
/**
* Stub: returns a monotonically increasing microsecond counter.
* Declared here, defined in esp_stubs.c.
*/
int64_t esp_timer_get_time(void);
/* ---- esp_wifi_types.h ---- */
/** Minimal rx_ctrl fields needed by csi_serialize_frame. */
typedef struct {
signed rssi : 8;
unsigned channel : 4;
unsigned noise_floor : 8;
unsigned rx_ant : 2;
/* Padding to fill out the struct so it compiles. */
unsigned _pad : 10;
} wifi_pkt_rx_ctrl_t;
/** Minimal wifi_csi_info_t needed by csi_serialize_frame. */
typedef struct {
wifi_pkt_rx_ctrl_t rx_ctrl;
uint8_t mac[6];
int16_t len; /**< Length of the I/Q buffer in bytes. */
int8_t *buf; /**< Pointer to I/Q data. */
} wifi_csi_info_t;
/* ---- Kconfig defaults ---- */
#ifndef CONFIG_CSI_NODE_ID
#define CONFIG_CSI_NODE_ID 1
#endif
#ifndef CONFIG_CSI_WIFI_CHANNEL
#define CONFIG_CSI_WIFI_CHANNEL 6
#endif
#ifndef CONFIG_CSI_WIFI_SSID
#define CONFIG_CSI_WIFI_SSID "test_ssid"
#endif
#ifndef CONFIG_CSI_TARGET_IP
#define CONFIG_CSI_TARGET_IP "192.168.1.1"
#endif
#ifndef CONFIG_CSI_TARGET_PORT
#define CONFIG_CSI_TARGET_PORT 5500
#endif
/* Suppress the build-time guard in csi_collector.c */
#ifndef CONFIG_ESP_WIFI_CSI_ENABLED
#define CONFIG_ESP_WIFI_CSI_ENABLED 1
#endif
/* ---- sdkconfig.h stub ---- */
/* (empty — all needed CONFIG_ macros are above) */
/* ---- FreeRTOS stubs ---- */
#define pdMS_TO_TICKS(x) ((x))
#define pdPASS 1
typedef int BaseType_t;
static inline int xPortGetCoreID(void) { return 0; }
static inline void vTaskDelay(uint32_t ticks) { (void)ticks; }
static inline BaseType_t xTaskCreatePinnedToCore(
void (*fn)(void *), const char *name, uint32_t stack,
void *arg, int prio, void *handle, int core)
{
(void)fn; (void)name; (void)stack; (void)arg;
(void)prio; (void)handle; (void)core;
return pdPASS;
}
/* ---- WiFi API stubs (no-ops) ---- */
typedef int wifi_interface_t;
typedef int wifi_second_chan_t;
#define WIFI_IF_STA 0
#define WIFI_SECOND_CHAN_NONE 0
typedef struct {
unsigned filter_mask;
} wifi_promiscuous_filter_t;
typedef int wifi_promiscuous_pkt_type_t;
#define WIFI_PROMIS_FILTER_MASK_MGMT 1
#define WIFI_PROMIS_FILTER_MASK_DATA 2
typedef struct {
int lltf_en;
int htltf_en;
int stbc_htltf2_en;
int ltf_merge_en;
int channel_filter_en;
int manu_scale;
int shift;
} wifi_csi_config_t;
typedef struct {
uint8_t primary;
} wifi_ap_record_t;
static inline esp_err_t esp_wifi_set_promiscuous(bool en) { (void)en; return ESP_OK; }
static inline esp_err_t esp_wifi_set_promiscuous_rx_cb(void *cb) { (void)cb; return ESP_OK; }
static inline esp_err_t esp_wifi_set_promiscuous_filter(wifi_promiscuous_filter_t *f) { (void)f; return ESP_OK; }
static inline esp_err_t esp_wifi_set_csi_config(wifi_csi_config_t *c) { (void)c; return ESP_OK; }
static inline esp_err_t esp_wifi_set_csi_rx_cb(void *cb, void *ctx) { (void)cb; (void)ctx; return ESP_OK; }
static inline esp_err_t esp_wifi_set_csi(bool en) { (void)en; return ESP_OK; }
static inline esp_err_t esp_wifi_set_channel(uint8_t ch, wifi_second_chan_t sc) { (void)ch; (void)sc; return ESP_OK; }
static inline esp_err_t esp_wifi_80211_tx(wifi_interface_t ifx, const void *b, int len, bool en) { (void)ifx; (void)b; (void)len; (void)en; return ESP_OK; }
static inline esp_err_t esp_wifi_sta_get_ap_info(wifi_ap_record_t *ap) { (void)ap; return ESP_FAIL; }
static inline const char *esp_err_to_name(esp_err_t code) { (void)code; return "STUB"; }
/* ---- NVS stubs ---- */
typedef uint32_t nvs_handle_t;
#define NVS_READONLY 0
static inline esp_err_t nvs_open(const char *ns, int mode, nvs_handle_t *h) { (void)ns; (void)mode; (void)h; return ESP_FAIL; }
static inline void nvs_close(nvs_handle_t h) { (void)h; }
static inline esp_err_t nvs_get_str(nvs_handle_t h, const char *k, char *v, size_t *l) { (void)h; (void)k; (void)v; (void)l; return ESP_FAIL; }
static inline esp_err_t nvs_get_u8(nvs_handle_t h, const char *k, uint8_t *v) { (void)h; (void)k; (void)v; return ESP_FAIL; }
static inline esp_err_t nvs_get_u16(nvs_handle_t h, const char *k, uint16_t *v) { (void)h; (void)k; (void)v; return ESP_FAIL; }
static inline esp_err_t nvs_get_u32(nvs_handle_t h, const char *k, uint32_t *v) { (void)h; (void)k; (void)v; return ESP_FAIL; }
static inline esp_err_t nvs_get_blob(nvs_handle_t h, const char *k, void *v, size_t *l) { (void)h; (void)k; (void)v; (void)l; return ESP_FAIL; }
/* ---- stream_sender stubs (defined in esp_stubs.c) ---- */
int stream_sender_send(const uint8_t *data, size_t len);
int stream_sender_init(void);
int stream_sender_init_with(const char *ip, uint16_t port);
void stream_sender_deinit(void);
/*
* wasm_runtime stubs: defined in esp_stubs.c.
* The actual prototype comes from ../main/wasm_runtime.h (via csi_collector.c).
* We just need the definition in esp_stubs.c to link.
*/
#endif /* ESP_STUBS_H */

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/* Stub: redirect to unified stubs header. */
#ifndef ESP_TIMER_H_STUB
#define ESP_TIMER_H_STUB
#include "esp_stubs.h"
#endif

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/* Stub: redirect to unified stubs header. */
#ifndef ESP_WIFI_H_STUB
#define ESP_WIFI_H_STUB
#include "esp_stubs.h"
#endif

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/* Stub: redirect to unified stubs header. */
#ifndef ESP_WIFI_TYPES_H_STUB
#define ESP_WIFI_TYPES_H_STUB
#include "esp_stubs.h"
#endif

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/* Stub: redirect to unified stubs header. */
#ifndef FREERTOS_H_STUB
#define FREERTOS_H_STUB
#include "esp_stubs.h"
#endif

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/* Stub: redirect to unified stubs header. */
#ifndef FREERTOS_TASK_H_STUB
#define FREERTOS_TASK_H_STUB
#include "esp_stubs.h"
#endif

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/* Stub: redirect to unified stubs header. */
#ifndef NVS_H_STUB
#define NVS_H_STUB
#include "esp_stubs.h"
#endif

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/* Stub: redirect to unified stubs header. */
#ifndef NVS_FLASH_H_STUB
#define NVS_FLASH_H_STUB
#include "esp_stubs.h"
#endif

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/* Stub: sdkconfig.h — all CONFIG_ macros provided by esp_stubs.h. */
#ifndef SDKCONFIG_H_STUB
#define SDKCONFIG_H_STUB
#include "esp_stubs.h"
#endif

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#!/usr/bin/env python3
"""
QEMU Post-Fault Health Checker — ADR-061 Layer 9
Reads a log segment captured after a fault injection and checks whether
the firmware is still healthy. Used by qemu-chaos-test.sh after each
fault in the chaos testing loop.
Health checks:
1. No crash patterns (Guru Meditation, assert, panic, abort)
2. No heap errors (OOM, heap corruption, alloc failure)
3. No stack overflow (FreeRTOS stack overflow hook)
4. Firmware still producing frames (CSI frame activity)
Exit codes:
0 HEALTHY — all checks pass
1 DEGRADED — no crash, but missing expected activity
2 UNHEALTHY — crash, heap error, or stack overflow detected
Usage:
python3 check_health.py --log /path/to/fault_segment.log --after-fault wifi_kill
"""
import argparse
import re
import sys
from dataclasses import dataclass
from pathlib import Path
from typing import List
# ANSI colors
USE_COLOR = sys.stdout.isatty()
def color(text: str, code: str) -> str:
if not USE_COLOR:
return text
return f"\033[{code}m{text}\033[0m"
def green(t: str) -> str:
return color(t, "32")
def yellow(t: str) -> str:
return color(t, "33")
def red(t: str) -> str:
return color(t, "1;31")
@dataclass
class HealthCheck:
name: str
passed: bool
message: str
severity: int # 0=pass, 1=degraded, 2=unhealthy
def check_no_crash(lines: List[str]) -> HealthCheck:
"""Check for crash indicators in the log."""
crash_patterns = [
r"Guru Meditation",
r"assert failed",
r"abort\(\)",
r"panic",
r"LoadProhibited",
r"StoreProhibited",
r"InstrFetchProhibited",
r"IllegalInstruction",
r"Unhandled debug exception",
r"Fatal exception",
]
for line in lines:
for pat in crash_patterns:
if re.search(pat, line):
return HealthCheck(
name="No crash",
passed=False,
message=f"Crash detected: {line.strip()[:120]}",
severity=2,
)
return HealthCheck(
name="No crash",
passed=True,
message="No crash indicators found",
severity=0,
)
def check_no_heap_errors(lines: List[str]) -> HealthCheck:
"""Check for heap/memory errors."""
heap_patterns = [
r"HEAP_ERROR",
r"out of memory",
r"heap_caps_alloc.*failed",
r"malloc.*fail",
r"heap corruption",
r"CORRUPT HEAP",
r"multi_heap",
r"heap_lock",
]
for line in lines:
for pat in heap_patterns:
if re.search(pat, line, re.IGNORECASE):
return HealthCheck(
name="No heap errors",
passed=False,
message=f"Heap error: {line.strip()[:120]}",
severity=2,
)
return HealthCheck(
name="No heap errors",
passed=True,
message="No heap errors found",
severity=0,
)
def check_no_stack_overflow(lines: List[str]) -> HealthCheck:
"""Check for FreeRTOS stack overflow."""
stack_patterns = [
r"[Ss]tack overflow",
r"stack_overflow",
r"vApplicationStackOverflowHook",
r"stack smashing",
]
for line in lines:
for pat in stack_patterns:
if re.search(pat, line):
return HealthCheck(
name="No stack overflow",
passed=False,
message=f"Stack overflow: {line.strip()[:120]}",
severity=2,
)
return HealthCheck(
name="No stack overflow",
passed=True,
message="No stack overflow detected",
severity=0,
)
def check_frame_activity(lines: List[str]) -> HealthCheck:
"""Check that the firmware is still producing CSI frames."""
frame_patterns = [
r"frame",
r"CSI",
r"mock_csi",
r"iq_data",
r"subcarrier",
r"csi_collector",
r"enqueue",
r"presence",
r"vitals",
r"breathing",
]
activity_lines = 0
for line in lines:
for pat in frame_patterns:
if re.search(pat, line, re.IGNORECASE):
activity_lines += 1
break
if activity_lines > 0:
return HealthCheck(
name="Frame activity",
passed=True,
message=f"Firmware producing output ({activity_lines} activity lines)",
severity=0,
)
else:
return HealthCheck(
name="Frame activity",
passed=False,
message="No frame/CSI activity detected after fault",
severity=1, # Degraded, not fatal
)
def run_health_checks(
log_path: Path,
fault_name: str,
tail_lines: int = 200,
) -> int:
"""Run all health checks and report results.
Returns:
0 = healthy, 1 = degraded, 2 = unhealthy
"""
if not log_path.exists():
print(f" ERROR: Log file not found: {log_path}", file=sys.stderr)
return 2
text = log_path.read_text(encoding="utf-8", errors="replace")
all_lines = text.splitlines()
# Use last N lines (most recent, after fault injection)
lines = all_lines[-tail_lines:] if len(all_lines) > tail_lines else all_lines
if not lines:
print(f" WARNING: Log file is empty (fault may have killed output)")
# Empty log after fault is degraded, not necessarily unhealthy
return 1
print(f" Health check after fault: {fault_name}")
print(f" Log lines analyzed: {len(lines)} (of {len(all_lines)} total)")
print()
# Run checks
checks = [
check_no_crash(lines),
check_no_heap_errors(lines),
check_no_stack_overflow(lines),
check_frame_activity(lines),
]
max_severity = 0
for check in checks:
if check.passed:
icon = green("PASS")
elif check.severity == 1:
icon = yellow("WARN")
else:
icon = red("FAIL")
print(f" [{icon}] {check.name}: {check.message}")
max_severity = max(max_severity, check.severity)
print()
# Summary
passed = sum(1 for c in checks if c.passed)
total = len(checks)
if max_severity == 0:
print(f" {green(f'HEALTHY')} — {passed}/{total} checks passed")
elif max_severity == 1:
print(f" {yellow(f'DEGRADED')} — {passed}/{total} checks passed")
else:
print(f" {red(f'UNHEALTHY')} — {passed}/{total} checks passed")
return max_severity
def main():
parser = argparse.ArgumentParser(
description="QEMU Post-Fault Health Checker — ADR-061 Layer 9",
formatter_class=argparse.RawDescriptionHelpFormatter,
epilog=(
"Example output:\n"
" [HEALTHY] t=30s frames=150 (5.0 fps) crashes=0 heap_err=0 wdt=0 reboots=0\n"
" \n"
" VERDICT: Firmware is healthy. No critical issues detected."
),
)
parser.add_argument(
"--log", required=True,
help="Path to the log file (or log segment) to check",
)
parser.add_argument(
"--after-fault", required=True,
help="Name of the fault that was injected (for reporting)",
)
parser.add_argument(
"--tail", type=int, default=200,
help="Number of lines from end of log to analyze (default: 200)",
)
args = parser.parse_args()
exit_code = run_health_checks(
log_path=Path(args.log),
fault_name=args.after_fault,
tail_lines=args.tail,
)
sys.exit(exit_code)
if __name__ == "__main__":
main()

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#!/usr/bin/env python3
"""
NVS Test Matrix Generator (ADR-061)
Generates NVS partition binaries for 14 test configurations using the
provision.py script's CSV builder and NVS binary generator. Each binary
can be injected into a QEMU flash image at offset 0x9000 for automated
firmware testing under different NVS configurations.
Usage:
python3 generate_nvs_matrix.py --output-dir build/nvs_matrix
# Generate only specific configs:
python3 generate_nvs_matrix.py --output-dir build/nvs_matrix --only default,full-adr060
Requirements:
- esp_idf_nvs_partition_gen (pip install) or ESP-IDF nvs_partition_gen.py
- Python 3.8+
"""
import argparse
import csv
import io
import os
import sys
from dataclasses import dataclass, field
from pathlib import Path
from typing import Dict, List, Optional, Tuple
# NVS partition size must match partitions_display.csv: 0x6000 = 24576 bytes
NVS_PARTITION_SIZE = 0x6000
@dataclass
class NvsEntry:
"""A single NVS key-value entry."""
key: str
type: str # "data" or "namespace"
encoding: str # "string", "u8", "u16", "u32", "hex2bin", ""
value: str
@dataclass
class NvsConfig:
"""A named NVS configuration with a list of entries."""
name: str
description: str
entries: List[NvsEntry] = field(default_factory=list)
def to_csv(self) -> str:
"""Generate NVS CSV content."""
buf = io.StringIO()
writer = csv.writer(buf)
writer.writerow(["key", "type", "encoding", "value"])
writer.writerow(["csi_cfg", "namespace", "", ""])
for entry in self.entries:
writer.writerow([entry.key, entry.type, entry.encoding, entry.value])
return buf.getvalue()
def define_configs() -> List[NvsConfig]:
"""Define all 14 NVS test configurations."""
configs = []
# 1. default - no NVS entries (firmware uses Kconfig defaults)
configs.append(NvsConfig(
name="default",
description="No NVS entries; firmware uses Kconfig defaults",
entries=[],
))
# 2. wifi-only - just WiFi credentials
configs.append(NvsConfig(
name="wifi-only",
description="WiFi SSID and password only",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
],
))
# 3. full-adr060 - channel override + MAC filter
configs.append(NvsConfig(
name="full-adr060",
description="ADR-060: channel override + MAC filter + full config",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("target_port", "data", "u16", "5005"),
NvsEntry("node_id", "data", "u8", "1"),
NvsEntry("csi_channel", "data", "u8", "6"),
NvsEntry("filter_mac", "data", "hex2bin", "aabbccddeeff"),
],
))
# 4. edge-tier0 - raw passthrough (no DSP)
configs.append(NvsConfig(
name="edge-tier0",
description="Edge tier 0: raw CSI passthrough, no on-device DSP",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("edge_tier", "data", "u8", "0"),
],
))
# 5. edge-tier1 - basic presence/motion detection
configs.append(NvsConfig(
name="edge-tier1",
description="Edge tier 1: basic presence and motion detection",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("edge_tier", "data", "u8", "1"),
NvsEntry("pres_thresh", "data", "u16", "50"),
],
))
# 6. edge-tier2-custom - full pipeline with custom thresholds
configs.append(NvsConfig(
name="edge-tier2-custom",
description="Edge tier 2: full pipeline with custom thresholds",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("edge_tier", "data", "u8", "2"),
NvsEntry("pres_thresh", "data", "u16", "100"),
NvsEntry("fall_thresh", "data", "u16", "3000"),
NvsEntry("vital_win", "data", "u16", "256"),
NvsEntry("vital_int", "data", "u16", "500"),
NvsEntry("subk_count", "data", "u8", "16"),
],
))
# 7. tdm-3node - TDM mesh with 3 nodes (slot 0)
configs.append(NvsConfig(
name="tdm-3node",
description="TDM mesh: 3-node schedule, this node is slot 0",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("node_id", "data", "u8", "0"),
NvsEntry("tdm_slot", "data", "u8", "0"),
NvsEntry("tdm_nodes", "data", "u8", "3"),
],
))
# 8. wasm-signed - WASM runtime with signature verification
configs.append(NvsConfig(
name="wasm-signed",
description="WASM runtime enabled with Ed25519 signature verification",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("edge_tier", "data", "u8", "2"),
# wasm_verify=1 + a 32-byte dummy Ed25519 pubkey
NvsEntry("wasm_verify", "data", "u8", "1"),
NvsEntry("wasm_pubkey", "data", "hex2bin",
"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"),
],
))
# 9. wasm-unsigned - WASM runtime without signature verification
configs.append(NvsConfig(
name="wasm-unsigned",
description="WASM runtime with signature verification disabled",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("edge_tier", "data", "u8", "2"),
NvsEntry("wasm_verify", "data", "u8", "0"),
NvsEntry("wasm_max", "data", "u8", "2"),
],
))
# 10. 5ghz-channel - 5 GHz channel override
configs.append(NvsConfig(
name="5ghz-channel",
description="ADR-060: 5 GHz channel 36 override",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork5G"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("csi_channel", "data", "u8", "36"),
],
))
# 11. boundary-max - maximum VALID values for all numeric fields
# Uses firmware-validated max ranges (not raw u8/u16 max):
# vital_win: 32-256, top_k: 1-32, power_duty: 10-100
configs.append(NvsConfig(
name="boundary-max",
description="Boundary test: maximum valid values per firmware validation ranges",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("target_port", "data", "u16", "65535"),
NvsEntry("node_id", "data", "u8", "255"),
NvsEntry("edge_tier", "data", "u8", "2"),
NvsEntry("pres_thresh", "data", "u16", "65535"),
NvsEntry("fall_thresh", "data", "u16", "65535"),
NvsEntry("vital_win", "data", "u16", "256"), # max validated
NvsEntry("vital_int", "data", "u16", "10000"),
NvsEntry("subk_count", "data", "u8", "32"),
NvsEntry("power_duty", "data", "u8", "100"),
],
))
# 12. boundary-min - minimum VALID values for all numeric fields
configs.append(NvsConfig(
name="boundary-min",
description="Boundary test: minimum valid values per firmware validation ranges",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("target_port", "data", "u16", "1024"),
NvsEntry("node_id", "data", "u8", "0"),
NvsEntry("edge_tier", "data", "u8", "0"),
NvsEntry("pres_thresh", "data", "u16", "1"),
NvsEntry("fall_thresh", "data", "u16", "100"), # min valid (0.1 rad/s²)
NvsEntry("vital_win", "data", "u16", "32"), # min validated
NvsEntry("vital_int", "data", "u16", "100"),
NvsEntry("subk_count", "data", "u8", "1"),
NvsEntry("power_duty", "data", "u8", "10"),
],
))
# 13. power-save - low power duty cycle configuration
configs.append(NvsConfig(
name="power-save",
description="Power-save mode: 10% duty cycle for battery-powered nodes",
entries=[
NvsEntry("ssid", "data", "string", "TestNetwork"),
NvsEntry("password", "data", "string", "testpass123"),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
NvsEntry("edge_tier", "data", "u8", "1"),
NvsEntry("power_duty", "data", "u8", "10"),
],
))
# 14. empty-strings - empty SSID/password to test fallback to Kconfig
configs.append(NvsConfig(
name="empty-strings",
description="Empty SSID and password to verify Kconfig fallback",
entries=[
NvsEntry("ssid", "data", "string", ""),
NvsEntry("password", "data", "string", ""),
NvsEntry("target_ip", "data", "string", "10.0.2.2"),
],
))
return configs
def generate_nvs_binary(csv_content: str, size: int) -> bytes:
"""Generate an NVS partition binary from CSV content.
Tries multiple methods to find nvs_partition_gen:
1. esp_idf_nvs_partition_gen pip package
2. Legacy nvs_partition_gen pip package
3. ESP-IDF bundled script (via IDF_PATH)
4. Module invocation
"""
import subprocess
import tempfile
with tempfile.NamedTemporaryFile(mode="w", suffix=".csv", delete=False) as f_csv:
f_csv.write(csv_content)
csv_path = f_csv.name
bin_path = csv_path.replace(".csv", ".bin")
try:
# Try pip-installed version first
try:
from esp_idf_nvs_partition_gen import nvs_partition_gen
nvs_partition_gen.generate(csv_path, bin_path, size)
with open(bin_path, "rb") as f:
return f.read()
except ImportError:
pass
# Try legacy import
try:
import nvs_partition_gen
nvs_partition_gen.generate(csv_path, bin_path, size)
with open(bin_path, "rb") as f:
return f.read()
except ImportError:
pass
# Try ESP-IDF bundled script
idf_path = os.environ.get("IDF_PATH", "")
gen_script = os.path.join(
idf_path, "components", "nvs_flash",
"nvs_partition_generator", "nvs_partition_gen.py"
)
if os.path.isfile(gen_script):
subprocess.check_call([
sys.executable, gen_script, "generate",
csv_path, bin_path, hex(size)
])
with open(bin_path, "rb") as f:
return f.read()
# Last resort: try as a module
try:
subprocess.check_call([
sys.executable, "-m", "nvs_partition_gen", "generate",
csv_path, bin_path, hex(size)
])
with open(bin_path, "rb") as f:
return f.read()
except (subprocess.CalledProcessError, FileNotFoundError):
print("ERROR: NVS partition generator tool not found.", file=sys.stderr)
print("Install: pip install esp-idf-nvs-partition-gen", file=sys.stderr)
print("Or set IDF_PATH to your ESP-IDF installation", file=sys.stderr)
raise RuntimeError(
"NVS partition generator not available. "
"Install: pip install esp-idf-nvs-partition-gen"
)
finally:
for p in set((csv_path, bin_path)): # deduplicate in case paths are identical
if os.path.isfile(p):
os.unlink(p)
def main():
parser = argparse.ArgumentParser(
description="Generate NVS partition binaries for QEMU firmware test matrix (ADR-061)",
)
parser.add_argument(
"--output-dir", required=True,
help="Directory to write NVS binary files",
)
parser.add_argument(
"--only", type=str, default=None,
help="Comma-separated list of config names to generate (default: all)",
)
parser.add_argument(
"--csv-only", action="store_true",
help="Only generate CSV files, skip binary generation",
)
parser.add_argument(
"--list", action="store_true", dest="list_configs",
help="List all available configurations and exit",
)
args = parser.parse_args()
all_configs = define_configs()
if args.list_configs:
print(f"{'Name':<20} {'Description'}")
print("-" * 70)
for cfg in all_configs:
print(f"{cfg.name:<20} {cfg.description}")
sys.exit(0)
# Filter configs if --only specified
if args.only:
selected = set(args.only.split(","))
configs = [c for c in all_configs if c.name in selected]
missing = selected - {c.name for c in configs}
if missing:
print(f"WARNING: Unknown config names: {', '.join(sorted(missing))}",
file=sys.stderr)
else:
configs = all_configs
output_dir = Path(args.output_dir)
output_dir.mkdir(parents=True, exist_ok=True)
print(f"Generating {len(configs)} NVS configurations in {output_dir}/")
print()
success = 0
errors = 0
for cfg in configs:
csv_content = cfg.to_csv()
# Always write the CSV for reference
csv_path = output_dir / f"nvs_{cfg.name}.csv"
csv_path.write_text(csv_content)
if cfg.name == "default" and not cfg.entries:
# "default" means no NVS — just produce an empty marker
print(f" [{cfg.name}] No NVS entries (uses Kconfig defaults)")
# Write a zero-filled NVS partition (erased state = 0xFF)
bin_path = output_dir / f"nvs_{cfg.name}.bin"
bin_path.write_bytes(b"\xff" * NVS_PARTITION_SIZE)
success += 1
continue
if args.csv_only:
print(f" [{cfg.name}] CSV only: {csv_path}")
success += 1
continue
try:
nvs_bin = generate_nvs_binary(csv_content, NVS_PARTITION_SIZE)
bin_path = output_dir / f"nvs_{cfg.name}.bin"
bin_path.write_bytes(nvs_bin)
print(f" [{cfg.name}] {len(nvs_bin)} bytes -> {bin_path}")
success += 1
except Exception as e:
print(f" [{cfg.name}] ERROR: {e}", file=sys.stderr)
errors += 1
print()
print(f"Done: {success} succeeded, {errors} failed")
if errors > 0:
sys.exit(1)
if __name__ == "__main__":
main()

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#!/usr/bin/env python3
"""
QEMU Fault Injector — ADR-061 Layer 9
Connects to a QEMU monitor socket and injects a specified fault type.
Used by qemu-chaos-test.sh to stress-test firmware resilience.
Supported faults:
wifi_kill - Pause/resume VM (simulates WiFi reconnect)
ring_flood - Send 1000 rapid commands to stress ring buffer
heap_exhaust - Write to heap metadata region to simulate OOM
timer_starvation - Pause VM for 500ms to starve FreeRTOS timers
corrupt_frame - Write bad magic bytes to CSI frame buffer area
nvs_corrupt - Write garbage to NVS flash region (offset 0x9000)
Usage:
python3 inject_fault.py --socket /path/to/qemu.sock --fault wifi_kill
"""
import argparse
import os
import random
import socket
import sys
import time
# Timeout for each monitor command (seconds)
CMD_TIMEOUT = 5.0
# QEMU monitor response buffer size
RECV_BUFSIZE = 4096
def connect_monitor(sock_path: str, timeout: float = CMD_TIMEOUT) -> socket.socket:
"""Connect to the QEMU monitor Unix domain socket."""
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.settimeout(timeout)
try:
s.connect(sock_path)
except (socket.error, FileNotFoundError) as e:
print(f"ERROR: Cannot connect to QEMU monitor at {sock_path}: {e}",
file=sys.stderr)
sys.exit(2)
# Read the initial QEMU monitor banner/prompt
try:
banner = s.recv(RECV_BUFSIZE).decode("utf-8", errors="replace")
if banner:
pass # Consume silently
else:
print(f"WARNING: Connected to {sock_path} but received no banner data. "
f"QEMU monitor may not be ready.", file=sys.stderr)
except socket.timeout:
print(f"WARNING: Connected to {sock_path} but timed out waiting for banner "
f"after {timeout}s. QEMU monitor may be unresponsive.", file=sys.stderr)
return s
def send_cmd(s: socket.socket, cmd: str, timeout: float = CMD_TIMEOUT) -> str:
"""Send a command to the QEMU monitor and return the response."""
s.settimeout(timeout)
try:
s.sendall((cmd + "\n").encode("utf-8"))
except (BrokenPipeError, ConnectionResetError) as e:
print(f"ERROR: Lost connection to QEMU monitor: {e}", file=sys.stderr)
return ""
# Read response (may be multi-line)
response = ""
try:
while True:
chunk = s.recv(RECV_BUFSIZE).decode("utf-8", errors="replace")
if not chunk:
break
response += chunk
# QEMU monitor prompt ends with "(qemu) "
if "(qemu)" in chunk:
break
except socket.timeout:
pass # Response may not have a clean prompt
return response
def fault_wifi_kill(s: socket.socket) -> None:
"""Pause VM for 2s then resume — simulates WiFi disconnect/reconnect."""
print("[wifi_kill] Pausing VM...")
send_cmd(s, "stop")
time.sleep(2.0)
print("[wifi_kill] Resuming VM...")
send_cmd(s, "cont")
print("[wifi_kill] Injected: 2s pause/resume cycle")
def fault_ring_flood(s: socket.socket) -> None:
"""Send 1000 rapid NMI injections to stress the ring buffer.
On real hardware, scenario 7 is a high-rate CSI burst. Under QEMU
we simulate this by rapidly triggering NMIs which the mock CSI
handler processes as frame events.
"""
print("[ring_flood] Sending 1000 rapid commands...")
sent = 0
for i in range(1000):
try:
# Use 'nmi' to trigger interrupt handler (mock CSI frame path)
s.sendall(b"nmi\n")
sent += 1
except (BrokenPipeError, ConnectionResetError):
print(f"[ring_flood] Connection lost after {sent} commands")
break
# Drain any accumulated responses
s.settimeout(1.0)
try:
while True:
chunk = s.recv(RECV_BUFSIZE)
if not chunk:
break
except socket.timeout:
pass
print(f"[ring_flood] Injected: {sent}/1000 rapid NMI triggers")
def fault_heap_exhaust(s: socket.socket, flash_path: str = None) -> None:
"""Simulate memory pressure by pausing VM to trigger watchdog/heap checks.
Actual heap memory writes require a GDB stub (-gdb tcp::1234).
This function probes the heap region and pauses the VM to stress
heap management as a realistic simulation.
"""
heap_base = 0x3FC88000
print("[heap_exhaust] Probing heap region...")
resp = send_cmd(s, f"xp /4xw 0x{heap_base:08x}")
print(f"[heap_exhaust] Heap header: {resp.strip()}")
# Pause VM to stress memory management
print("[heap_exhaust] Pausing VM for 3s to stress heap management...")
send_cmd(s, "stop")
time.sleep(3.0)
send_cmd(s, "cont")
print("[heap_exhaust] WARNING: Actual heap corruption requires GDB stub (-gdb tcp::1234)")
print("[heap_exhaust] Injected: 3s VM pause (simulates memory pressure)")
def fault_timer_starvation(s: socket.socket) -> None:
"""Pause VM for 500ms — starves FreeRTOS tick and timer callbacks."""
print("[timer_starvation] Pausing VM for 500ms...")
send_cmd(s, "stop")
time.sleep(0.5)
send_cmd(s, "cont")
print("[timer_starvation] Injected: 500ms execution pause")
def fault_corrupt_frame(s: socket.socket, flash_path: str = None) -> None:
"""Simulate CSI frame corruption by pausing VM during frame processing.
Actual memory writes to the frame buffer require a GDB stub
(-gdb tcp::1234). This function probes the frame buffer region
and pauses the VM mid-frame to simulate corruption effects.
"""
frame_buf_addr = 0x3FCA0000
print(f"[corrupt_frame] Probing frame buffer at 0x{frame_buf_addr:08X}...")
resp = send_cmd(s, f"xp /4xb 0x{frame_buf_addr:08x}")
print(f"[corrupt_frame] Frame buffer: {resp.strip()}")
# Pause VM briefly to disrupt frame processing timing
print("[corrupt_frame] Pausing VM for 1s to disrupt frame processing...")
send_cmd(s, "stop")
time.sleep(1.0)
send_cmd(s, "cont")
print("[corrupt_frame] WARNING: Actual frame corruption requires GDB stub (-gdb tcp::1234)")
print(f"[corrupt_frame] Injected: 1s VM pause during frame processing")
def fault_nvs_corrupt(s: socket.socket, flash_path: str = None) -> None:
"""Write garbage to the NVS flash region on disk.
When a flash image path is provided, writes random bytes directly
to the NVS partition offset (0x9000) in the flash image file.
Without a flash path, falls back to a read-only probe via monitor.
"""
if flash_path and os.path.isfile(flash_path):
nvs_offset = 0x9000
garbage = bytes(random.randint(0, 255) for _ in range(16))
with open(flash_path, "r+b") as f:
f.seek(nvs_offset)
f.write(garbage)
print(f"[nvs_corrupt] Wrote 16 garbage bytes at flash offset 0x{nvs_offset:X}")
print(f"[nvs_corrupt] Flash image: {flash_path}")
else:
# Fallback: attempt via monitor (read-only probe)
resp = send_cmd(s, f"xp /8xb 0x3C009000")
print(f"[nvs_corrupt] NVS region (read-only probe): {resp.strip()}")
print(f"[nvs_corrupt] WARNING: No --flash path provided; NVS corruption was NOT injected")
print(f"[nvs_corrupt] Pass --flash /path/to/flash.bin for actual corruption")
# Map fault names to injection functions
FAULT_MAP = {
"wifi_kill": fault_wifi_kill,
"ring_flood": fault_ring_flood,
"heap_exhaust": fault_heap_exhaust,
"timer_starvation": fault_timer_starvation,
"corrupt_frame": fault_corrupt_frame,
"nvs_corrupt": fault_nvs_corrupt,
}
def main():
parser = argparse.ArgumentParser(
description="QEMU Fault Injector — ADR-061 Layer 9",
formatter_class=argparse.RawDescriptionHelpFormatter,
epilog=__doc__,
)
parser.add_argument(
"--socket", required=True,
help="Path to QEMU monitor Unix domain socket",
)
parser.add_argument(
"--fault", required=True, choices=list(FAULT_MAP.keys()),
help="Fault type to inject",
)
parser.add_argument(
"--timeout", type=float, default=CMD_TIMEOUT,
help=f"Per-command timeout in seconds (default: {CMD_TIMEOUT})",
)
parser.add_argument(
"--flash", default=None,
help="Path to flash image (for nvs_corrupt direct file writes)",
)
args = parser.parse_args()
print(f"[inject_fault] Connecting to {args.socket}...")
s = connect_monitor(args.socket, timeout=args.timeout)
print(f"[inject_fault] Injecting fault: {args.fault}")
try:
fault_fn = FAULT_MAP[args.fault]
# Pass flash_path to faults that accept it
import inspect
sig = inspect.signature(fault_fn)
if "flash_path" in sig.parameters:
fault_fn(s, flash_path=args.flash)
else:
fault_fn(s)
except Exception as e:
print(f"ERROR: Fault injection failed: {e}", file=sys.stderr)
s.close()
sys.exit(1)
s.close()
print(f"[inject_fault] Complete: {args.fault}")
if __name__ == "__main__":
main()

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scripts/install-qemu.sh Normal file
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#!/bin/bash
# install-qemu.sh — Install QEMU with ESP32-S3 support (Espressif fork)
# Usage: bash scripts/install-qemu.sh [OPTIONS]
set -euo pipefail
# ── Colors ────────────────────────────────────────────────────────────────────
RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
BLUE='\033[0;34m'; CYAN='\033[0;36m'; BOLD='\033[1m'; NC='\033[0m'
info() { echo -e "${BLUE}[INFO]${NC} $*"; }
ok() { echo -e "${GREEN}[OK]${NC} $*"; }
warn() { echo -e "${YELLOW}[WARN]${NC} $*"; }
err() { echo -e "${RED}[ERROR]${NC} $*"; }
step() { echo -e "\n${CYAN}${BOLD}▶ $*${NC}"; }
# ── Defaults ──────────────────────────────────────────────────────────────────
INSTALL_DIR="$HOME/.espressif/qemu"
BRANCH="esp-develop"
JOBS=""
SKIP_DEPS=false
UNINSTALL=false
CHECK_ONLY=false
QEMU_REPO="https://github.com/espressif/qemu.git"
# ── Usage ─────────────────────────────────────────────────────────────────────
usage() {
cat <<EOF
${BOLD}install-qemu.sh${NC} — Install QEMU with ESP32-S3 support (Espressif fork)
${BOLD}USAGE${NC}
bash scripts/install-qemu.sh [OPTIONS]
${BOLD}OPTIONS${NC}
--install-dir DIR Installation directory (default: ~/.espressif/qemu)
--branch TAG QEMU branch or tag to build (default: esp-develop)
--jobs N Parallel build jobs (default: nproc)
--skip-deps Skip system dependency installation
--uninstall Remove QEMU installation
--check Verify existing installation and exit
-h, --help Show this help
${BOLD}EXIT CODES${NC}
0 Success
1 Dependency installation failed
2 Build failed
3 Unsupported OS
${BOLD}EXAMPLES${NC}
bash scripts/install-qemu.sh
bash scripts/install-qemu.sh --install-dir /opt/qemu-esp --jobs 8
bash scripts/install-qemu.sh --check
bash scripts/install-qemu.sh --uninstall
EOF
}
# ── Parse args ────────────────────────────────────────────────────────────────
while [[ $# -gt 0 ]]; do
case "$1" in
--install-dir) INSTALL_DIR="$2"; shift 2 ;;
--branch) BRANCH="$2"; shift 2 ;;
--jobs) JOBS="$2"; shift 2 ;;
--skip-deps) SKIP_DEPS=true; shift ;;
--uninstall) UNINSTALL=true; shift ;;
--check) CHECK_ONLY=true; shift ;;
-h|--help) usage; exit 0 ;;
*) err "Unknown option: $1"; usage; exit 1 ;;
esac
done
# ── OS detection ──────────────────────────────────────────────────────────────
detect_os() {
OS="unknown"
DISTRO="unknown"
IS_WSL=false
case "$(uname -s)" in
Linux)
OS="linux"
if grep -qi microsoft /proc/version 2>/dev/null; then
IS_WSL=true
fi
if [ -f /etc/os-release ]; then
# shellcheck disable=SC1091
. /etc/os-release
case "$ID" in
ubuntu|debian|pop|linuxmint|elementary) DISTRO="debian" ;;
fedora|rhel|centos|rocky|alma) DISTRO="fedora" ;;
arch|manjaro|endeavouros) DISTRO="arch" ;;
opensuse*|sles) DISTRO="suse" ;;
*) DISTRO="$ID" ;;
esac
fi
;;
Darwin) OS="macos"; DISTRO="macos" ;;
MINGW*|MSYS*)
err "Native Windows/MINGW detected."
err "QEMU ESP32-S3 must be built on Linux or macOS."
err "Options:"
err " 1. Use WSL: wsl bash scripts/install-qemu.sh"
err " 2. Use Docker: docker run -it ubuntu:22.04 bash"
err " 3. Download pre-built: https://github.com/espressif/qemu/releases"
exit 3
;;
*) err "Unsupported OS: $(uname -s)"; exit 3 ;;
esac
info "Detected: OS=${OS} Distro=${DISTRO} WSL=${IS_WSL}"
}
# ── Check existing installation ───────────────────────────────────────────────
check_installation() {
local qemu_bin="$INSTALL_DIR/build/qemu-system-xtensa"
if [ -x "$qemu_bin" ]; then
local version
version=$("$qemu_bin" --version 2>/dev/null | head -1) || true
if [ -n "$version" ]; then
ok "QEMU installed: $version"
ok "Binary: $qemu_bin"
return 0
fi
fi
# Check PATH
if command -v qemu-system-xtensa &>/dev/null; then
local version
version=$(qemu-system-xtensa --version 2>/dev/null | head -1) || true
ok "QEMU found in PATH: $version"
return 0
fi
warn "QEMU with ESP32-S3 support not found"
return 1
}
if $CHECK_ONLY; then
detect_os
if check_installation; then exit 0; else exit 1; fi
fi
# ── Uninstall ─────────────────────────────────────────────────────────────────
if $UNINSTALL; then
step "Uninstalling QEMU from $INSTALL_DIR"
if [ -d "$INSTALL_DIR" ]; then
rm -rf "$INSTALL_DIR"
ok "Removed $INSTALL_DIR"
else
warn "Directory not found: $INSTALL_DIR"
fi
# Remove symlink
local_bin="$HOME/.local/bin/qemu-system-xtensa"
if [ -L "$local_bin" ]; then
rm -f "$local_bin"
ok "Removed symlink $local_bin"
fi
ok "Uninstall complete"
exit 0
fi
# ── Main install flow ─────────────────────────────────────────────────────────
detect_os
# Default jobs = nproc
if [ -z "$JOBS" ]; then
if command -v nproc &>/dev/null; then
JOBS=$(nproc)
elif command -v sysctl &>/dev/null; then
JOBS=$(sysctl -n hw.ncpu 2>/dev/null || echo 4)
else
JOBS=4
fi
fi
info "Build parallelism: $JOBS jobs"
# ── Step 1: Install dependencies ──────────────────────────────────────────────
install_deps() {
step "Installing build dependencies"
case "$DISTRO" in
debian)
info "Using apt (Debian/Ubuntu)"
sudo apt-get update -qq
sudo apt-get install -y -qq \
git build-essential python3 python3-pip python3-venv \
ninja-build pkg-config libglib2.0-dev libpixman-1-dev \
libslirp-dev libgcrypt-dev
;;
fedora)
info "Using dnf (Fedora/RHEL)"
sudo dnf install -y \
git gcc gcc-c++ make python3 python3-pip \
ninja-build pkgconfig glib2-devel pixman-devel \
libslirp-devel libgcrypt-devel
;;
arch)
info "Using pacman (Arch)"
sudo pacman -S --needed --noconfirm \
git base-devel python python-pip \
ninja pkgconf glib2 pixman libslirp libgcrypt
;;
suse)
info "Using zypper (openSUSE)"
sudo zypper install -y \
git gcc gcc-c++ make python3 python3-pip \
ninja pkg-config glib2-devel libpixman-1-0-devel \
libslirp-devel libgcrypt-devel
;;
macos)
info "Using Homebrew"
if ! command -v brew &>/dev/null; then
err "Homebrew not found. Install from https://brew.sh"
exit 1
fi
brew install glib pixman ninja pkg-config libslirp libgcrypt || true
;;
*)
warn "Unknown distro '$DISTRO' — install these manually:"
warn " git, gcc/g++, python3, ninja, pkg-config, glib2-dev, pixman-dev, libslirp-dev"
return 1
;;
esac
ok "Dependencies installed"
}
if ! $SKIP_DEPS; then
install_deps || { err "Dependency installation failed"; exit 1; }
else
info "Skipping dependency installation (--skip-deps)"
fi
# ── Step 2: Clone Espressif QEMU fork ─────────────────────────────────────────
step "Cloning Espressif QEMU fork"
SRC_DIR="$INSTALL_DIR"
if [ -d "$SRC_DIR/.git" ]; then
info "Repository already exists at $SRC_DIR"
info "Fetching latest changes on branch $BRANCH"
git -C "$SRC_DIR" fetch origin "$BRANCH" --depth=1
git -C "$SRC_DIR" checkout "$BRANCH" 2>/dev/null || git -C "$SRC_DIR" checkout "origin/$BRANCH"
ok "Updated to latest $BRANCH"
else
info "Cloning $QEMU_REPO (branch: $BRANCH)"
mkdir -p "$(dirname "$SRC_DIR")"
git clone --depth=1 --branch "$BRANCH" "$QEMU_REPO" "$SRC_DIR"
ok "Cloned to $SRC_DIR"
fi
# ── Step 3: Configure and build ───────────────────────────────────────────────
step "Configuring QEMU (target: xtensa-softmmu)"
BUILD_DIR="$SRC_DIR/build"
mkdir -p "$BUILD_DIR"
cd "$SRC_DIR"
./configure \
--target-list=xtensa-softmmu \
--enable-slirp \
--enable-gcrypt \
--prefix="$INSTALL_DIR/dist" \
2>&1 | tail -5
step "Building QEMU ($JOBS parallel jobs)"
make -j"$JOBS" -C "$BUILD_DIR" 2>&1 | tail -20
if [ ! -x "$BUILD_DIR/qemu-system-xtensa" ]; then
err "Build failed — qemu-system-xtensa binary not found"
err "Troubleshooting:"
err " 1. Check build output above for errors"
err " 2. Ensure all dependencies are installed: re-run without --skip-deps"
err " 3. Try with fewer jobs: --jobs 1"
err " 4. On macOS, ensure Xcode CLT: xcode-select --install"
exit 2
fi
ok "Build succeeded: $BUILD_DIR/qemu-system-xtensa"
# ── Step 4: Create symlink / add to PATH ──────────────────────────────────────
step "Setting up PATH access"
LOCAL_BIN="$HOME/.local/bin"
mkdir -p "$LOCAL_BIN"
ln -sf "$BUILD_DIR/qemu-system-xtensa" "$LOCAL_BIN/qemu-system-xtensa"
ok "Symlinked to $LOCAL_BIN/qemu-system-xtensa"
# Check if ~/.local/bin is in PATH
if ! echo "$PATH" | tr ':' '\n' | grep -qx "$LOCAL_BIN"; then
warn "$LOCAL_BIN is not in your PATH"
warn "Add this to your shell profile (~/.bashrc or ~/.zshrc):"
echo -e " ${BOLD}export PATH=\"\$HOME/.local/bin:\$PATH\"${NC}"
fi
# ── Step 5: Verify ────────────────────────────────────────────────────────────
step "Verifying installation"
QEMU_VERSION=$("$BUILD_DIR/qemu-system-xtensa" --version | head -1)
ok "$QEMU_VERSION"
# Check ESP32-S3 machine support
if "$BUILD_DIR/qemu-system-xtensa" -machine help 2>/dev/null | grep -q esp32s3; then
ok "ESP32-S3 machine type available"
else
warn "ESP32-S3 machine type not listed (may still work with newer builds)"
fi
# ── Step 6: Install Python packages ──────────────────────────────────────────
step "Installing Python packages (esptool, pyyaml, nvs-partition-gen)"
PIP_CMD="pip3"
if ! command -v pip3 &>/dev/null; then
PIP_CMD="python3 -m pip"
fi
$PIP_CMD install --user --quiet \
esptool \
pyyaml \
esp-idf-nvs-partition-gen \
2>&1 || warn "Some Python packages failed to install (non-fatal)"
ok "Python packages installed"
# ── Done ──────────────────────────────────────────────────────────────────────
echo ""
echo -e "${GREEN}${BOLD}Installation complete!${NC}"
echo ""
echo -e "${BOLD}Next steps:${NC}"
echo ""
echo " 1. Run a smoke test:"
echo -e " ${CYAN}qemu-system-xtensa -nographic -machine esp32s3 \\${NC}"
echo -e " ${CYAN} -drive file=firmware.bin,if=mtd,format=raw \\${NC}"
echo -e " ${CYAN} -serial mon:stdio${NC}"
echo ""
echo " 2. Run the project QEMU tests:"
echo -e " ${CYAN}cd $(dirname "$0")/.."
echo -e " pytest firmware/esp32-csi-node/tests/qemu/ -v${NC}"
echo ""
echo " 3. Binary location:"
echo -e " ${CYAN}$BUILD_DIR/qemu-system-xtensa${NC}"
echo ""
echo -e " 4. Uninstall:"
echo -e " ${CYAN}bash scripts/install-qemu.sh --uninstall${NC}"
echo ""

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#!/bin/bash
# QEMU Chaos / Fault Injection Test Runner — ADR-061 Layer 9
#
# Launches firmware under QEMU and injects a series of faults to verify
# the firmware's resilience. Each fault is injected via the QEMU monitor
# socket (or GDB stub), followed by a recovery window and health check.
#
# Fault types:
# 1. wifi_kill — Pause/resume VM to simulate WiFi reconnect
# 2. ring_flood — Inject 1000 rapid mock frames (ring buffer stress)
# 3. heap_exhaust — Write to heap metadata to simulate low memory
# 4. timer_starvation — Pause VM for 500ms to starve FreeRTOS timers
# 5. corrupt_frame — Inject a CSI frame with bad magic bytes
# 6. nvs_corrupt — Write garbage to NVS flash region
#
# Environment variables:
# QEMU_PATH - Path to qemu-system-xtensa (default: qemu-system-xtensa)
# QEMU_TIMEOUT - Boot timeout in seconds (default: 15)
# FLASH_IMAGE - Path to merged flash image (default: build/qemu_flash.bin)
# FAULT_WAIT - Seconds to wait after fault injection (default: 5)
#
# Exit codes:
# 0 PASS — all checks passed
# 1 WARN — non-critical checks failed
# 2 FAIL — critical checks failed
# 3 FATAL — build error, crash, or infrastructure failure
# ── Help ──────────────────────────────────────────────────────────────
usage() {
cat <<'HELP'
Usage: qemu-chaos-test.sh [OPTIONS]
Launch firmware under QEMU and inject a series of faults to verify the
firmware's resilience. Each fault is injected via the QEMU monitor socket,
followed by a recovery window and health check.
Fault types:
wifi_kill Pause/resume VM to simulate WiFi reconnect
ring_flood Inject 1000 rapid mock frames (ring buffer stress)
heap_exhaust Write to heap metadata to simulate low memory
timer_starvation Pause VM for 500ms to starve FreeRTOS timers
corrupt_frame Inject a CSI frame with bad magic bytes
nvs_corrupt Write garbage to NVS flash region
Options:
-h, --help Show this help message and exit
Environment variables:
QEMU_PATH Path to qemu-system-xtensa (default: qemu-system-xtensa)
QEMU_TIMEOUT Boot timeout in seconds (default: 15)
FLASH_IMAGE Path to merged flash image (default: build/qemu_flash.bin)
FAULT_WAIT Seconds to wait after injection (default: 5)
Examples:
./qemu-chaos-test.sh
QEMU_TIMEOUT=30 FAULT_WAIT=10 ./qemu-chaos-test.sh
FLASH_IMAGE=/path/to/image.bin ./qemu-chaos-test.sh
Exit codes:
0 PASS — all checks passed
1 WARN — non-critical checks failed
2 FAIL — critical checks failed
3 FATAL — build error, crash, or infrastructure failure
HELP
exit 0
}
case "${1:-}" in -h|--help) usage ;; esac
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
FIRMWARE_DIR="$PROJECT_ROOT/firmware/esp32-csi-node"
BUILD_DIR="$FIRMWARE_DIR/build"
QEMU_BIN="${QEMU_PATH:-qemu-system-xtensa}"
FLASH_IMAGE="${FLASH_IMAGE:-$BUILD_DIR/qemu_flash.bin}"
BOOT_TIMEOUT="${QEMU_TIMEOUT:-15}"
FAULT_WAIT="${FAULT_WAIT:-5}"
MONITOR_SOCK="$BUILD_DIR/qemu-chaos.sock"
LOG_DIR="$BUILD_DIR/chaos-tests"
UART_LOG="$LOG_DIR/qemu_uart.log"
QEMU_PID=""
# Fault definitions
FAULTS=("wifi_kill" "ring_flood" "heap_exhaust" "timer_starvation" "corrupt_frame" "nvs_corrupt")
declare -a FAULT_RESULTS=()
# ──────────────────────────────────────────────────────────────────────
# Cleanup
# ──────────────────────────────────────────────────────────────────────
cleanup() {
echo ""
echo "[cleanup] Shutting down QEMU and removing socket..."
if [ -n "$QEMU_PID" ] && kill -0 "$QEMU_PID" 2>/dev/null; then
kill "$QEMU_PID" 2>/dev/null || true
wait "$QEMU_PID" 2>/dev/null || true
fi
rm -f "$MONITOR_SOCK"
echo "[cleanup] Done."
}
trap cleanup EXIT INT TERM
# ──────────────────────────────────────────────────────────────────────
# Helpers
# ──────────────────────────────────────────────────────────────────────
monitor_cmd() {
local cmd="$1"
local timeout="${2:-5}"
echo "$cmd" | socat - "UNIX-CONNECT:$MONITOR_SOCK,connect-timeout=$timeout" 2>/dev/null
}
log_line_count() {
wc -l < "$UART_LOG" 2>/dev/null || echo 0
}
wait_for_boot() {
local elapsed=0
while [ "$elapsed" -lt "$BOOT_TIMEOUT" ]; do
if [ -f "$UART_LOG" ] && grep -qE "app_main|main_task|ESP32-S3|mock_csi" "$UART_LOG" 2>/dev/null; then
return 0
fi
sleep 1
elapsed=$((elapsed + 1))
done
return 1
}
# ──────────────────────────────────────────────────────────────────────
# Fault injection functions
# ──────────────────────────────────────────────────────────────────────
inject_wifi_kill() {
# Simulate WiFi disconnect/reconnect by pausing and resuming the VM.
# The firmware should handle the time gap gracefully.
echo " [inject] Pausing VM for 2s (simulating WiFi disconnect)..."
monitor_cmd "stop"
sleep 2
echo " [inject] Resuming VM (simulating WiFi reconnect)..."
monitor_cmd "cont"
}
inject_ring_flood() {
# Send 1000 rapid mock frames by triggering scenario 7 repeatedly.
# This stresses the ring buffer and tests backpressure handling.
echo " [inject] Flooding ring buffer with 1000 rapid frame triggers..."
python3 "$SCRIPT_DIR/inject_fault.py" \
--socket "$MONITOR_SOCK" \
--fault ring_flood
}
inject_heap_exhaust() {
# Simulate memory pressure by pausing the VM to stress heap management.
# Actual heap memory writes require GDB stub.
echo " [inject] Simulating heap pressure via VM pause..."
python3 "$SCRIPT_DIR/inject_fault.py" \
--socket "$MONITOR_SOCK" \
--fault heap_exhaust
}
inject_timer_starvation() {
# Pause execution for 500ms to starve FreeRTOS timer callbacks.
# Tests watchdog recovery and timer resilience.
echo " [inject] Starving timers (500ms pause)..."
monitor_cmd "stop"
sleep 0.5
monitor_cmd "cont"
}
inject_corrupt_frame() {
# Inject a CSI frame with bad magic bytes via monitor memory write.
# The frame parser should reject it without crashing.
echo " [inject] Injecting corrupt CSI frame (bad magic)..."
python3 "$SCRIPT_DIR/inject_fault.py" \
--socket "$MONITOR_SOCK" \
--fault corrupt_frame
}
inject_nvs_corrupt() {
# Write garbage to the NVS flash region (offset 0x9000) via direct file write.
# The firmware should detect NVS corruption and fall back to defaults.
echo " [inject] Corrupting NVS flash region..."
python3 "$SCRIPT_DIR/inject_fault.py" \
--socket "$MONITOR_SOCK" \
--fault nvs_corrupt \
--flash "$FLASH_IMAGE"
}
# ──────────────────────────────────────────────────────────────────────
# Pre-flight checks
# ──────────────────────────────────────────────────────────────────────
echo "=== QEMU Chaos Test Runner — ADR-061 Layer 9 ==="
echo "QEMU binary: $QEMU_BIN"
echo "Flash image: $FLASH_IMAGE"
echo "Boot timeout: ${BOOT_TIMEOUT}s"
echo "Fault wait: ${FAULT_WAIT}s"
echo "Faults: ${FAULTS[*]}"
echo ""
if ! command -v "$QEMU_BIN" &>/dev/null; then
echo "ERROR: QEMU binary not found: $QEMU_BIN"
echo " Install: sudo apt install qemu-system-misc # Debian/Ubuntu"
echo " Install: brew install qemu # macOS"
echo " Or set QEMU_PATH to the qemu-system-xtensa binary."
exit 3
fi
if ! command -v socat &>/dev/null; then
echo "ERROR: socat not found (needed for QEMU monitor communication)."
echo " Install: sudo apt install socat # Debian/Ubuntu"
echo " Install: brew install socat # macOS"
exit 3
fi
if ! command -v python3 &>/dev/null; then
echo "ERROR: python3 not found (needed for fault injection scripts)."
echo " Install: sudo apt install python3 # Debian/Ubuntu"
echo " Install: brew install python # macOS"
exit 3
fi
if [ ! -f "$FLASH_IMAGE" ]; then
echo "ERROR: Flash image not found: $FLASH_IMAGE"
echo "Run qemu-esp32s3-test.sh first to build the flash image."
exit 3
fi
mkdir -p "$LOG_DIR"
# ──────────────────────────────────────────────────────────────────────
# Launch QEMU
# ──────────────────────────────────────────────────────────────────────
echo "── Launching QEMU ──"
echo ""
rm -f "$MONITOR_SOCK"
> "$UART_LOG"
QEMU_ARGS=(
-machine esp32s3
-nographic
-drive "file=$FLASH_IMAGE,if=mtd,format=raw"
-serial "file:$UART_LOG"
-no-reboot
-monitor "unix:$MONITOR_SOCK,server,nowait"
)
"$QEMU_BIN" "${QEMU_ARGS[@]}" &
QEMU_PID=$!
echo "[qemu] PID=$QEMU_PID"
# Wait for monitor socket
waited=0
while [ ! -S "$MONITOR_SOCK" ] && [ "$waited" -lt 10 ]; do
sleep 1
waited=$((waited + 1))
done
if [ ! -S "$MONITOR_SOCK" ]; then
echo "ERROR: QEMU monitor socket did not appear after 10s"
exit 3
fi
# Wait for boot
echo "[boot] Waiting for firmware boot (up to ${BOOT_TIMEOUT}s)..."
if wait_for_boot; then
echo "[boot] Firmware booted successfully."
else
echo "[boot] No boot indicator found (continuing anyway)."
fi
# Let firmware stabilize for a few seconds
echo "[boot] Stabilizing (3s)..."
sleep 3
echo ""
# ──────────────────────────────────────────────────────────────────────
# Fault injection loop
# ──────────────────────────────────────────────────────────────────────
echo "── Fault Injection ──"
echo ""
MAX_EXIT=0
for fault in "${FAULTS[@]}"; do
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo " Fault: $fault"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
# Record log position before injection
pre_lines=$(log_line_count)
# Check QEMU is still alive
if ! kill -0 "$QEMU_PID" 2>/dev/null; then
echo " ERROR: QEMU process died before fault injection"
FAULT_RESULTS+=("${fault}:3")
MAX_EXIT=3
break
fi
# Inject the fault
case "$fault" in
wifi_kill) inject_wifi_kill ;;
ring_flood) inject_ring_flood ;;
heap_exhaust) inject_heap_exhaust ;;
timer_starvation) inject_timer_starvation ;;
corrupt_frame) inject_corrupt_frame ;;
nvs_corrupt) inject_nvs_corrupt ;;
*)
echo " ERROR: Unknown fault type: $fault"
FAULT_RESULTS+=("${fault}:2")
continue
;;
esac
# Wait for firmware to respond/recover
echo " [recovery] Waiting ${FAULT_WAIT}s for recovery..."
sleep "$FAULT_WAIT"
# Extract post-fault log segment
post_lines=$(log_line_count)
new_lines=$((post_lines - pre_lines))
fault_log="$LOG_DIR/fault_${fault}.log"
if [ "$new_lines" -gt 0 ]; then
tail -n "$new_lines" "$UART_LOG" > "$fault_log"
else
# Grab last 50 lines as context
tail -n 50 "$UART_LOG" > "$fault_log"
fi
echo " [check] Captured $new_lines new log lines"
# Health check
fault_exit=0
python3 "$SCRIPT_DIR/check_health.py" \
--log "$fault_log" \
--after-fault "$fault" || fault_exit=$?
case "$fault_exit" in
0) echo " [result] HEALTHY — firmware recovered gracefully" ;;
1) echo " [result] DEGRADED — firmware running but with issues" ;;
*) echo " [result] UNHEALTHY — firmware in bad state" ;;
esac
FAULT_RESULTS+=("${fault}:${fault_exit}")
if [ "$fault_exit" -gt "$MAX_EXIT" ]; then
MAX_EXIT=$fault_exit
fi
echo ""
done
# ──────────────────────────────────────────────────────────────────────
# Summary
# ──────────────────────────────────────────────────────────────────────
echo "── Chaos Test Results ──"
echo ""
PASS=0
DEGRADED=0
FAIL=0
for result in "${FAULT_RESULTS[@]}"; do
name="${result%%:*}"
code="${result##*:}"
case "$code" in
0) echo " [PASS] $name"; PASS=$((PASS + 1)) ;;
1) echo " [DEGRADED] $name"; DEGRADED=$((DEGRADED + 1)) ;;
*) echo " [FAIL] $name"; FAIL=$((FAIL + 1)) ;;
esac
done
echo ""
echo " $PASS passed, $DEGRADED degraded, $FAIL failed out of ${#FAULTS[@]} faults"
echo ""
# Check if QEMU survived all faults
if kill -0 "$QEMU_PID" 2>/dev/null; then
echo " QEMU process survived all fault injections."
else
echo " WARNING: QEMU process died during fault injection."
if [ "$MAX_EXIT" -lt 3 ]; then
MAX_EXIT=3
fi
fi
echo ""
echo "=== Chaos Test Complete (exit code: $MAX_EXIT) ==="
exit "$MAX_EXIT"

362
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#!/usr/bin/env bash
# ============================================================================
# qemu-cli.sh — Unified QEMU ESP32-S3 testing CLI (ADR-061)
# Version: 1.0.0
#
# Single entry point for all QEMU testing operations.
# Run `qemu-cli.sh help` or `qemu-cli.sh --help` for usage.
# ============================================================================
set -euo pipefail
VERSION="1.0.0"
# --- Colors ----------------------------------------------------------------
if [[ -t 1 ]]; then
RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'
BLUE='\033[0;34m'; CYAN='\033[0;36m'; BOLD='\033[1m'; RST='\033[0m'
else
RED=''; GREEN=''; YELLOW=''; BLUE=''; CYAN=''; BOLD=''; RST=''
fi
# --- Resolve paths ---------------------------------------------------------
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
FIRMWARE_DIR="$PROJECT_ROOT/firmware/esp32-csi-node"
FUZZ_DIR="$FIRMWARE_DIR/test"
# --- Helpers ---------------------------------------------------------------
info() { echo -e "${BLUE}[INFO]${RST} $*"; }
ok() { echo -e "${GREEN}[OK]${RST} $*"; }
warn() { echo -e "${YELLOW}[WARN]${RST} $*"; }
err() { echo -e "${RED}[ERROR]${RST} $*" >&2; }
die() { err "$@"; exit 1; }
need_qemu() {
detect_qemu >/dev/null 2>&1 || \
die "QEMU not found. Install with: ${CYAN}qemu-cli.sh install${RST}"
}
detect_qemu() {
# 1. Explicit env var
if [[ -n "${QEMU_PATH:-}" ]] && [[ -x "$QEMU_PATH" ]]; then
echo "$QEMU_PATH"; return 0
fi
# 2. On PATH
local qemu
qemu="$(command -v qemu-system-xtensa 2>/dev/null || true)"
if [[ -n "$qemu" ]]; then echo "$qemu"; return 0; fi
# 3. Espressif default build location
local espressif_qemu="$HOME/.espressif/qemu/build/qemu-system-xtensa"
if [[ -x "$espressif_qemu" ]]; then echo "$espressif_qemu"; return 0; fi
return 1
}
detect_python() {
command -v python3 2>/dev/null || command -v python 2>/dev/null || echo "python3"
}
# --- Command: help ---------------------------------------------------------
cmd_help() {
cat <<EOF
${BOLD}qemu-cli.sh${RST} v${VERSION} — Unified QEMU ESP32-S3 testing CLI
${BOLD}USAGE${RST}
qemu-cli.sh <command> [options]
${BOLD}COMMANDS${RST}
${CYAN}install${RST} Install QEMU with ESP32-S3 support
${CYAN}test${RST} Run single-node firmware test
${CYAN}mesh${RST} [N] Run multi-node mesh test (default: 3 nodes)
${CYAN}swarm${RST} [args] Run swarm configurator (qemu_swarm.py)
${CYAN}snapshot${RST} [args] Run snapshot-based tests
${CYAN}chaos${RST} [args] Run chaos / fault injection tests
${CYAN}fuzz${RST} [--duration N] Run all 3 fuzz targets (clang libFuzzer)
${CYAN}nvs${RST} [args] Generate NVS test matrix
${CYAN}health${RST} <logfile> Check firmware health from QEMU log
${CYAN}status${RST} Show installation status and versions
${CYAN}help${RST} Show this help message
${BOLD}EXAMPLES${RST}
qemu-cli.sh install # Install QEMU
qemu-cli.sh test # Run basic firmware test
qemu-cli.sh test --timeout 120 # Test with longer timeout
qemu-cli.sh swarm --preset smoke # Quick swarm test
qemu-cli.sh swarm --preset standard # Standard 3-node test
qemu-cli.sh swarm --list-presets # List available presets
qemu-cli.sh mesh 3 # 3-node mesh test
qemu-cli.sh chaos # Run chaos tests
qemu-cli.sh fuzz --duration 60 # Fuzz for 60 seconds
qemu-cli.sh nvs --list # List NVS configs
qemu-cli.sh health build/qemu_output.log
qemu-cli.sh status # Show what's installed
${BOLD}TAB COMPLETION${RST}
Source the completions in your shell:
eval "\$(qemu-cli.sh --completions)"
${BOLD}ENVIRONMENT${RST}
QEMU_PATH Path to qemu-system-xtensa binary (auto-detected)
FUZZ_DURATION Override fuzz duration in seconds (default: 30)
FUZZ_JOBS Parallel fuzzing jobs (default: 1)
EOF
}
# --- Command: install ------------------------------------------------------
cmd_install() {
if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
echo "Usage: qemu-cli.sh install"
echo "Install QEMU with Espressif ESP32-S3 support."
return 0
fi
local installer="$SCRIPT_DIR/install-qemu.sh"
if [[ -f "$installer" ]]; then
info "Running install-qemu.sh ..."
bash "$installer" "$@"
else
info "No install-qemu.sh found. Showing manual install steps."
cat <<EOF
${BOLD}Manual QEMU ESP32-S3 installation:${RST}
1. git clone https://github.com/espressif/qemu.git ~/.espressif/qemu-src
2. cd ~/.espressif/qemu-src
3. ./configure --target-list=xtensa-softmmu --prefix=\$HOME/.espressif/qemu/build \\
--enable-gcrypt --disable-bsd-user --disable-docs
4. make -j\$(nproc) && make install
5. Add to PATH: export PATH="\$HOME/.espressif/qemu/build/bin:\$PATH"
EOF
fi
}
# --- Command: test ----------------------------------------------------------
cmd_test() {
if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
echo "Usage: qemu-cli.sh test [--timeout N] [extra args...]"
echo "Run single-node QEMU ESP32-S3 firmware test."
return 0
fi
need_qemu
info "Running single-node firmware test ..."
bash "$SCRIPT_DIR/qemu-esp32s3-test.sh" "$@"
}
# --- Command: mesh ----------------------------------------------------------
cmd_mesh() {
if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
echo "Usage: qemu-cli.sh mesh [N] [extra args...]"
echo "Run multi-node mesh test. N = number of nodes (default: 3)."
return 0
fi
need_qemu
local nodes="${1:-3}"
shift 2>/dev/null || true
info "Running ${nodes}-node mesh test ..."
bash "$SCRIPT_DIR/qemu-mesh-test.sh" "$nodes" "$@"
}
# --- Command: swarm ---------------------------------------------------------
cmd_swarm() {
if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
echo "Usage: qemu-cli.sh swarm [--preset NAME] [--list-presets] [args...]"
echo "Run QEMU swarm configurator (qemu_swarm.py)."
echo ""
echo "Presets: smoke, standard, full, stress"
echo "List: qemu-cli.sh swarm --list-presets"
return 0
fi
need_qemu
local py; py="$(detect_python)"
info "Running swarm configurator ..."
"$py" "$SCRIPT_DIR/qemu_swarm.py" "$@"
}
# --- Command: snapshot ------------------------------------------------------
cmd_snapshot() {
if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
echo "Usage: qemu-cli.sh snapshot [args...]"
echo "Run snapshot-based QEMU tests."
return 0
fi
need_qemu
info "Running snapshot tests ..."
bash "$SCRIPT_DIR/qemu-snapshot-test.sh" "$@"
}
# --- Command: chaos ---------------------------------------------------------
cmd_chaos() {
if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
echo "Usage: qemu-cli.sh chaos [args...]"
echo "Run chaos / fault injection tests."
return 0
fi
need_qemu
info "Running chaos tests ..."
bash "$SCRIPT_DIR/qemu-chaos-test.sh" "$@"
}
# --- Command: fuzz ----------------------------------------------------------
cmd_fuzz() {
local duration="${FUZZ_DURATION:-30}"
if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
echo "Usage: qemu-cli.sh fuzz [--duration N]"
echo "Build and run all 3 fuzz targets (clang libFuzzer)."
echo "Requires: clang with libFuzzer support."
return 0
fi
while [[ $# -gt 0 ]]; do
case "$1" in
--duration) duration="$2"; shift 2 ;;
*) warn "Unknown fuzz option: $1"; shift ;;
esac
done
if ! command -v clang >/dev/null 2>&1; then
die "clang not found. Fuzz targets require clang with libFuzzer."
fi
info "Building and running fuzz targets (${duration}s each) ..."
make -C "$FUZZ_DIR" run_all FUZZ_DURATION="$duration"
ok "Fuzz testing complete."
}
# --- Command: nvs -----------------------------------------------------------
cmd_nvs() {
if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
echo "Usage: qemu-cli.sh nvs [--list] [args...]"
echo "Generate NVS test configuration matrix."
return 0
fi
local py; py="$(detect_python)"
info "Running NVS matrix generator ..."
"$py" "$SCRIPT_DIR/generate_nvs_matrix.py" "$@"
}
# --- Command: health --------------------------------------------------------
cmd_health() {
if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
echo "Usage: qemu-cli.sh health <logfile>"
echo "Analyze firmware health from a QEMU output log."
return 0
fi
local logfile="${1:-}"
if [[ -z "$logfile" ]]; then
die "Usage: qemu-cli.sh health <logfile>"
fi
if [[ ! -f "$logfile" ]]; then
die "Log file not found: $logfile"
fi
local py; py="$(detect_python)"
info "Analyzing health from: $logfile"
"$py" "$SCRIPT_DIR/check_health.py" --log "$logfile" --after-fault manual
}
# --- Command: status --------------------------------------------------------
cmd_status() {
# Status should never fail — disable errexit locally
set +e
echo -e "${BOLD}=== QEMU ESP32-S3 Testing Status ===${RST}"
echo ""
# QEMU
local qemu_bin
qemu_bin="$(detect_qemu 2>/dev/null)"
if [[ -n "$qemu_bin" ]]; then
local qemu_ver
qemu_ver="$("$qemu_bin" --version 2>/dev/null | head -1 || echo "unknown")"
ok "QEMU: ${GREEN}installed${RST} ($qemu_ver)"
echo " Path: $qemu_bin"
else
warn "QEMU: ${YELLOW}not found${RST} (run: qemu-cli.sh install)"
fi
# ESP-IDF
if [[ -n "${IDF_PATH:-}" ]] && [[ -d "$IDF_PATH" ]]; then
ok "ESP-IDF: ${GREEN}available${RST} ($IDF_PATH)"
else
warn "ESP-IDF: ${YELLOW}IDF_PATH not set${RST}"
fi
# Python
local py; py="$(detect_python)"
if command -v "$py" >/dev/null 2>&1; then
ok "Python: ${GREEN}$("$py" --version 2>&1)${RST}"
else
warn "Python: ${YELLOW}not found${RST}"
fi
# Clang (for fuzz)
if command -v clang >/dev/null 2>&1; then
ok "Clang: ${GREEN}$(clang --version 2>/dev/null | head -1)${RST}"
else
warn "Clang: ${YELLOW}not found${RST} (needed for fuzz targets only)"
fi
# Firmware binary
local fw_bin="$FIRMWARE_DIR/build/esp32-csi-node.bin"
if [[ -f "$fw_bin" ]]; then
local fw_size
fw_size="$(stat -c%s "$fw_bin" 2>/dev/null || stat -f%z "$fw_bin" 2>/dev/null || echo "?")"
ok "Firmware: ${GREEN}built${RST} ($fw_bin, ${fw_size} bytes)"
else
warn "Firmware: ${YELLOW}not built${RST} (expected at $fw_bin)"
fi
# Swarm presets
local preset_dir="$SCRIPT_DIR/swarm_presets"
if [[ -d "$preset_dir" ]]; then
local presets
presets="$(ls "$preset_dir"/ 2>/dev/null | \
sed 's/\.\(yaml\|json\)$//' | sort -u | tr '\n' ', ' | sed 's/,$//')"
if [[ -n "$presets" ]]; then
ok "Presets: ${GREEN}${presets}${RST}"
else
warn "Presets: ${YELLOW}none found${RST} in $preset_dir"
fi
fi
echo ""
set -e
}
# --- Completions output -----------------------------------------------------
print_completions() {
cat <<'COMP'
_qemu_cli_completions() {
local cmds="install test mesh swarm snapshot chaos fuzz nvs health status help"
local cur="${COMP_WORDS[COMP_CWORD]}"
if [[ $COMP_CWORD -eq 1 ]]; then
COMPREPLY=( $(compgen -W "$cmds" -- "$cur") )
fi
}
complete -F _qemu_cli_completions qemu-cli.sh
COMP
}
# --- Main dispatch ----------------------------------------------------------
main() {
local cmd="${1:-help}"
shift 2>/dev/null || true
case "$cmd" in
install) cmd_install "$@" ;;
test) cmd_test "$@" ;;
mesh) cmd_mesh "$@" ;;
swarm) cmd_swarm "$@" ;;
snapshot) cmd_snapshot "$@" ;;
chaos) cmd_chaos "$@" ;;
fuzz) cmd_fuzz "$@" ;;
nvs) cmd_nvs "$@" ;;
health) cmd_health "$@" ;;
status) cmd_status "$@" ;;
help|-h|--help) cmd_help ;;
--version) echo "qemu-cli.sh v${VERSION}" ;;
--completions) print_completions ;;
*)
err "Unknown command: ${BOLD}${cmd}${RST}"
echo ""
cmd_help
exit 1
;;
esac
}
main "$@"

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#!/bin/bash
# QEMU ESP32-S3 Firmware Test Runner (ADR-061)
#
# Builds the firmware with mock CSI enabled, merges binaries into a single
# flash image, optionally injects a pre-provisioned NVS partition, runs the
# image under QEMU with a timeout, and validates the UART output.
#
# Environment variables:
# QEMU_PATH - Path to qemu-system-xtensa (default: qemu-system-xtensa)
# QEMU_TIMEOUT - Timeout in seconds (default: 60)
# SKIP_BUILD - Set to "1" to skip the idf.py build step
# NVS_BIN - Path to a pre-built NVS binary to inject (optional)
#
# Exit codes:
# 0 PASS — all checks passed
# 1 WARN — non-critical checks failed
# 2 FAIL — critical checks failed
# 3 FATAL — build error, crash, or infrastructure failure
# ── Help ──────────────────────────────────────────────────────────────
usage() {
cat <<'HELP'
Usage: qemu-esp32s3-test.sh [OPTIONS]
Build ESP32-S3 firmware with mock CSI, merge binaries into a single flash
image, run under QEMU with a timeout, and validate the UART output.
Options:
-h, --help Show this help message and exit
Environment variables:
QEMU_PATH Path to qemu-system-xtensa (default: qemu-system-xtensa)
QEMU_TIMEOUT Timeout in seconds (default: 60)
SKIP_BUILD Set to "1" to skip idf.py build (default: unset)
NVS_BIN Path to pre-built NVS binary (optional)
QEMU_NET Set to "0" to disable networking (default: 1)
Examples:
./qemu-esp32s3-test.sh
SKIP_BUILD=1 ./qemu-esp32s3-test.sh
QEMU_PATH=/opt/qemu/bin/qemu-system-xtensa QEMU_TIMEOUT=120 ./qemu-esp32s3-test.sh
Exit codes:
0 PASS — all checks passed
1 WARN — non-critical checks failed
2 FAIL — critical checks failed
3 FATAL — build error, crash, or infrastructure failure
HELP
exit 0
}
case "${1:-}" in -h|--help) usage ;; esac
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
FIRMWARE_DIR="$PROJECT_ROOT/firmware/esp32-csi-node"
BUILD_DIR="$FIRMWARE_DIR/build"
QEMU_BIN="${QEMU_PATH:-qemu-system-xtensa}"
FLASH_IMAGE="$BUILD_DIR/qemu_flash.bin"
LOG_FILE="$BUILD_DIR/qemu_output.log"
TIMEOUT_SEC="${QEMU_TIMEOUT:-60}"
echo "=== QEMU ESP32-S3 Firmware Test (ADR-061) ==="
echo "Firmware dir: $FIRMWARE_DIR"
echo "QEMU binary: $QEMU_BIN"
echo "Timeout: ${TIMEOUT_SEC}s"
echo ""
# ── Prerequisite checks ───────────────────────────────────────────────
if ! command -v "$QEMU_BIN" &>/dev/null; then
echo "ERROR: QEMU binary not found: $QEMU_BIN"
echo " Install: sudo apt install qemu-system-misc # Debian/Ubuntu"
echo " Install: brew install qemu # macOS"
echo " Or set QEMU_PATH to the qemu-system-xtensa binary."
exit 3
fi
if ! command -v python3 &>/dev/null; then
echo "ERROR: python3 not found."
echo " Install: sudo apt install python3 # Debian/Ubuntu"
echo " Install: brew install python # macOS"
exit 3
fi
if ! python3 -m esptool version &>/dev/null 2>&1; then
echo "ERROR: esptool not found (needed to merge flash binaries)."
echo " Install: pip install esptool"
exit 3
fi
# ── SKIP_BUILD precheck ──────────────────────────────────────────────
if [ "${SKIP_BUILD:-}" = "1" ] && [ ! -f "$BUILD_DIR/esp32-csi-node.bin" ]; then
echo "ERROR: SKIP_BUILD=1 but flash image not found: $BUILD_DIR/esp32-csi-node.bin"
echo "Build the firmware first: ./qemu-esp32s3-test.sh (without SKIP_BUILD)"
echo "Or unset SKIP_BUILD to build automatically."
exit 3
fi
# 1. Build with mock CSI enabled (skip if already built)
if [ "${SKIP_BUILD:-}" != "1" ]; then
echo "[1/4] Building firmware (mock CSI mode)..."
idf.py -C "$FIRMWARE_DIR" \
-D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.qemu" \
build
echo ""
else
echo "[1/4] Skipping build (SKIP_BUILD=1)"
echo ""
fi
# Verify build artifacts exist
for artifact in \
"$BUILD_DIR/bootloader/bootloader.bin" \
"$BUILD_DIR/partition_table/partition-table.bin" \
"$BUILD_DIR/esp32-csi-node.bin"; do
if [ ! -f "$artifact" ]; then
echo "ERROR: Build artifact not found: $artifact"
echo "Run without SKIP_BUILD=1 or build the firmware first."
exit 3
fi
done
# 2. Merge binaries into single flash image
echo "[2/4] Creating merged flash image..."
# Check for ota_data_initial.bin; some builds don't produce it
OTA_DATA_ARGS=""
if [ -f "$BUILD_DIR/ota_data_initial.bin" ]; then
OTA_DATA_ARGS="0xf000 $BUILD_DIR/ota_data_initial.bin"
fi
python3 -m esptool --chip esp32s3 merge_bin -o "$FLASH_IMAGE" \
--flash_mode dio --flash_freq 80m --flash_size 8MB \
0x0 "$BUILD_DIR/bootloader/bootloader.bin" \
0x8000 "$BUILD_DIR/partition_table/partition-table.bin" \
$OTA_DATA_ARGS \
0x20000 "$BUILD_DIR/esp32-csi-node.bin"
echo "Flash image: $FLASH_IMAGE ($(stat -c%s "$FLASH_IMAGE" 2>/dev/null || stat -f%z "$FLASH_IMAGE") bytes)"
# 2b. Optionally inject pre-provisioned NVS partition
NVS_FILE="${NVS_BIN:-$BUILD_DIR/nvs_test.bin}"
if [ -f "$NVS_FILE" ]; then
echo "[2b] Injecting NVS partition from: $NVS_FILE"
# NVS partition offset = 0x9000 = 36864
dd if="$NVS_FILE" of="$FLASH_IMAGE" \
bs=1 seek=$((0x9000)) conv=notrunc 2>/dev/null
echo "NVS injected ($(stat -c%s "$NVS_FILE" 2>/dev/null || stat -f%z "$NVS_FILE") bytes at 0x9000)"
fi
echo ""
# 3. Run in QEMU with timeout, capture UART output
echo "[3/4] Running QEMU (timeout: ${TIMEOUT_SEC}s)..."
echo "------- QEMU UART output -------"
# Use timeout command; fall back to gtimeout on macOS
TIMEOUT_CMD="timeout"
if ! command -v timeout &>/dev/null; then
if command -v gtimeout &>/dev/null; then
TIMEOUT_CMD="gtimeout"
else
echo "WARNING: 'timeout' command not found. QEMU may run indefinitely."
TIMEOUT_CMD=""
fi
fi
QEMU_EXIT=0
# Common QEMU arguments
QEMU_ARGS=(
-machine esp32s3
-nographic
-drive "file=$FLASH_IMAGE,if=mtd,format=raw"
-serial mon:stdio
-no-reboot
)
# Enable SLIRP user-mode networking for UDP if available
if [ "${QEMU_NET:-1}" != "0" ]; then
QEMU_ARGS+=(-nic "user,model=open_eth,net=10.0.2.0/24,host=10.0.2.2")
fi
if [ -n "$TIMEOUT_CMD" ]; then
$TIMEOUT_CMD "$TIMEOUT_SEC" "$QEMU_BIN" "${QEMU_ARGS[@]}" \
2>&1 | tee "$LOG_FILE" || QEMU_EXIT=$?
else
"$QEMU_BIN" "${QEMU_ARGS[@]}" \
2>&1 | tee "$LOG_FILE" || QEMU_EXIT=$?
fi
echo "------- End QEMU output -------"
echo ""
# timeout returns 124 when the process is killed by timeout — that's expected
if [ "$QEMU_EXIT" -eq 124 ]; then
echo "QEMU exited via timeout (expected for firmware that loops forever)."
elif [ "$QEMU_EXIT" -ne 0 ]; then
echo "WARNING: QEMU exited with code $QEMU_EXIT"
fi
echo ""
# 4. Validate expected output
echo "[4/4] Validating output..."
python3 "$SCRIPT_DIR/validate_qemu_output.py" "$LOG_FILE"
VALIDATE_EXIT=$?
echo ""
echo "=== Test Complete (exit code: $VALIDATE_EXIT) ==="
exit $VALIDATE_EXIT

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#!/bin/bash
# QEMU ESP32-S3 Multi-Node Mesh Simulation (ADR-061 Layer 3)
#
# Spawns N ESP32-S3 QEMU instances connected via a Linux bridge, each with
# unique NVS provisioning (node ID, TDM slot), and a Rust aggregator that
# collects frames from all nodes. After a configurable timeout the script
# tears everything down and runs validate_mesh_test.py.
#
# Usage:
# sudo ./qemu-mesh-test.sh [N_NODES]
#
# Environment variables:
# QEMU_PATH - Path to qemu-system-xtensa (default: qemu-system-xtensa)
# QEMU_TIMEOUT - Timeout in seconds (default: 45)
# MESH_TIMEOUT - Deprecated alias for QEMU_TIMEOUT
# SKIP_BUILD - Set to "1" to skip the idf.py build step
# BRIDGE_NAME - Bridge interface name (default: qemu-br0)
# BRIDGE_SUBNET - Bridge IP/mask (default: 10.0.0.1/24)
# AGGREGATOR_PORT - UDP port the aggregator listens on (default: 5005)
#
# Prerequisites:
# - Linux with bridge-utils and iproute2
# - QEMU with ESP32-S3 machine support (qemu-system-xtensa)
# - provision.py capable of --dry-run NVS generation
# - Rust workspace with wifi-densepose-hardware crate (aggregator binary)
#
# Exit codes:
# 0 PASS — all checks passed
# 1 WARN — non-critical checks failed
# 2 FAIL — critical checks failed
# 3 FATAL — build error, crash, or infrastructure failure
# ── Help ──────────────────────────────────────────────────────────────
usage() {
cat <<'HELP'
Usage: sudo ./qemu-mesh-test.sh [OPTIONS] [N_NODES]
Spawn N ESP32-S3 QEMU instances connected via a Linux bridge, each with
unique NVS provisioning (node ID, TDM slot), and a Rust aggregator that
collects frames from all nodes.
NOTE: Requires root/sudo for TAP/bridge creation.
Options:
-h, --help Show this help message and exit
Positional:
N_NODES Number of mesh nodes (default: 3, minimum: 2)
Environment variables:
QEMU_PATH Path to qemu-system-xtensa (default: qemu-system-xtensa)
QEMU_TIMEOUT Timeout in seconds (default: 45)
MESH_TIMEOUT Alias for QEMU_TIMEOUT (deprecated)(default: 45)
SKIP_BUILD Set to "1" to skip idf.py build (default: unset)
BRIDGE_NAME Bridge interface name (default: qemu-br0)
BRIDGE_SUBNET Bridge IP/mask (default: 10.0.0.1/24)
AGGREGATOR_PORT UDP port for aggregator (default: 5005)
Examples:
sudo ./qemu-mesh-test.sh
sudo QEMU_TIMEOUT=90 ./qemu-mesh-test.sh 5
sudo SKIP_BUILD=1 ./qemu-mesh-test.sh 4
Exit codes:
0 PASS — all checks passed
1 WARN — non-critical checks failed
2 FAIL — critical checks failed
3 FATAL — build error, crash, or infrastructure failure
HELP
exit 0
}
case "${1:-}" in -h|--help) usage ;; esac
set -euo pipefail
# ---------------------------------------------------------------------------
# Paths
# ---------------------------------------------------------------------------
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
FIRMWARE_DIR="$PROJECT_ROOT/firmware/esp32-csi-node"
BUILD_DIR="$FIRMWARE_DIR/build"
RUST_DIR="$PROJECT_ROOT/rust-port/wifi-densepose-rs"
PROVISION_SCRIPT="$FIRMWARE_DIR/provision.py"
VALIDATE_SCRIPT="$SCRIPT_DIR/validate_mesh_test.py"
# ---------------------------------------------------------------------------
# Configuration
# ---------------------------------------------------------------------------
N_NODES="${1:-3}"
QEMU_BIN="${QEMU_PATH:-qemu-system-xtensa}"
TIMEOUT="${QEMU_TIMEOUT:-${MESH_TIMEOUT:-45}}"
BRIDGE="${BRIDGE_NAME:-qemu-br0}"
BRIDGE_IP="${BRIDGE_SUBNET:-10.0.0.1/24}"
AGG_PORT="${AGGREGATOR_PORT:-5005}"
RESULTS_FILE="$BUILD_DIR/mesh_test_results.json"
echo "=== QEMU Multi-Node Mesh Test (ADR-061 Layer 3) ==="
echo "Nodes: $N_NODES"
echo "Bridge: $BRIDGE ($BRIDGE_IP)"
echo "Aggregator: 0.0.0.0:$AGG_PORT"
echo "QEMU binary: $QEMU_BIN"
echo "Timeout: ${TIMEOUT}s"
echo ""
# ---------------------------------------------------------------------------
# Preflight checks
# ---------------------------------------------------------------------------
if [ "$N_NODES" -lt 2 ]; then
echo "ERROR: Need at least 2 nodes for mesh simulation (got $N_NODES)"
exit 3
fi
if ! command -v "$QEMU_BIN" &>/dev/null; then
echo "ERROR: QEMU binary not found: $QEMU_BIN"
echo " Install: sudo apt install qemu-system-misc # Debian/Ubuntu"
echo " Install: brew install qemu # macOS"
echo " Or set QEMU_PATH to the qemu-system-xtensa binary."
exit 3
fi
if ! command -v python3 &>/dev/null; then
echo "ERROR: python3 not found."
echo " Install: sudo apt install python3 # Debian/Ubuntu"
echo " Install: brew install python # macOS"
exit 3
fi
if ! command -v ip &>/dev/null; then
echo "ERROR: 'ip' command not found."
echo " Install: sudo apt install iproute2 # Debian/Ubuntu"
exit 3
fi
if ! command -v brctl &>/dev/null && ! ip link help bridge &>/dev/null 2>&1; then
echo "WARNING: bridge-utils not found; will use 'ip link' for bridge creation."
fi
if command -v socat &>/dev/null; then
true # optional, available
else
echo "NOTE: socat not found (optional, used for advanced monitor communication)."
echo " Install: sudo apt install socat # Debian/Ubuntu"
echo " Install: brew install socat # macOS"
fi
if ! command -v cargo &>/dev/null; then
echo "ERROR: cargo not found (needed to build the Rust aggregator)."
echo " Install: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh"
exit 3
fi
if [ "$(id -u)" -ne 0 ]; then
echo "ERROR: This script must be run as root (for TAP/bridge creation)."
echo "Usage: sudo $0 [N_NODES]"
exit 3
fi
mkdir -p "$BUILD_DIR"
# ---------------------------------------------------------------------------
# Cleanup trap — runs on EXIT regardless of success/failure
# ---------------------------------------------------------------------------
QEMU_PIDS=()
AGG_PID=""
cleanup() {
echo ""
echo "--- Cleaning up ---"
# Kill QEMU instances
for pid in "${QEMU_PIDS[@]}"; do
if kill -0 "$pid" 2>/dev/null; then
kill "$pid" 2>/dev/null || true
wait "$pid" 2>/dev/null || true
fi
done
# Kill aggregator
if [ -n "$AGG_PID" ] && kill -0 "$AGG_PID" 2>/dev/null; then
kill "$AGG_PID" 2>/dev/null || true
wait "$AGG_PID" 2>/dev/null || true
fi
# Tear down TAP interfaces and bridge
for i in $(seq 0 $((N_NODES - 1))); do
local tap="tap${i}"
if ip link show "$tap" &>/dev/null; then
ip link set "$tap" down 2>/dev/null || true
ip link delete "$tap" 2>/dev/null || true
fi
done
if ip link show "$BRIDGE" &>/dev/null; then
ip link set "$BRIDGE" down 2>/dev/null || true
ip link delete "$BRIDGE" type bridge 2>/dev/null || true
fi
echo "Cleanup complete."
}
trap cleanup EXIT
# ---------------------------------------------------------------------------
# 1. Build flash image (if not already built)
# ---------------------------------------------------------------------------
if [ "${SKIP_BUILD:-}" != "1" ]; then
echo "[1/6] Building firmware (mock CSI + QEMU overlay)..."
idf.py -C "$FIRMWARE_DIR" \
-D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.qemu" \
build
echo ""
else
echo "[1/6] Skipping build (SKIP_BUILD=1)"
echo ""
fi
# Verify build artifacts
FLASH_IMAGE_BASE="$BUILD_DIR/qemu_flash_base.bin"
for artifact in \
"$BUILD_DIR/bootloader/bootloader.bin" \
"$BUILD_DIR/partition_table/partition-table.bin" \
"$BUILD_DIR/esp32-csi-node.bin"; do
if [ ! -f "$artifact" ]; then
echo "ERROR: Build artifact not found: $artifact"
echo "Run without SKIP_BUILD=1 or build the firmware first."
exit 3
fi
done
# Merge into base flash image
echo "[2/6] Creating base flash image..."
OTA_DATA_ARGS=""
if [ -f "$BUILD_DIR/ota_data_initial.bin" ]; then
OTA_DATA_ARGS="0xf000 $BUILD_DIR/ota_data_initial.bin"
fi
python3 -m esptool --chip esp32s3 merge_bin -o "$FLASH_IMAGE_BASE" \
--flash_mode dio --flash_freq 80m --flash_size 8MB \
0x0 "$BUILD_DIR/bootloader/bootloader.bin" \
0x8000 "$BUILD_DIR/partition_table/partition-table.bin" \
$OTA_DATA_ARGS \
0x20000 "$BUILD_DIR/esp32-csi-node.bin"
echo "Base flash image: $FLASH_IMAGE_BASE ($(stat -c%s "$FLASH_IMAGE_BASE" 2>/dev/null || stat -f%z "$FLASH_IMAGE_BASE") bytes)"
echo ""
# ---------------------------------------------------------------------------
# 3. Generate per-node NVS and flash images
# ---------------------------------------------------------------------------
echo "[3/6] Generating per-node NVS images..."
# Extract the aggregator IP from the bridge subnet (first host)
AGG_IP="${BRIDGE_IP%%/*}"
for i in $(seq 0 $((N_NODES - 1))); do
NVS_BIN="$BUILD_DIR/nvs_node${i}.bin"
NODE_FLASH="$BUILD_DIR/qemu_flash_node${i}.bin"
# Generate NVS with provision.py --dry-run
# --port is required by argparse but unused in dry-run; pass a dummy
python3 "$PROVISION_SCRIPT" \
--port /dev/null \
--dry-run \
--node-id "$i" \
--tdm-slot "$i" \
--tdm-total "$N_NODES" \
--target-ip "$AGG_IP" \
--target-port "$AGG_PORT"
# provision.py --dry-run writes to nvs_provision.bin in CWD
if [ -f "nvs_provision.bin" ]; then
mv "nvs_provision.bin" "$NVS_BIN"
else
echo "ERROR: provision.py did not produce nvs_provision.bin for node $i"
exit 3
fi
# Copy base image and inject NVS at 0x9000
cp "$FLASH_IMAGE_BASE" "$NODE_FLASH"
dd if="$NVS_BIN" of="$NODE_FLASH" \
bs=1 seek=$((0x9000)) conv=notrunc 2>/dev/null
echo " Node $i: flash=$NODE_FLASH nvs=$NVS_BIN (TDM slot $i/$N_NODES)"
done
echo ""
# ---------------------------------------------------------------------------
# 4. Create bridge and TAP interfaces
# ---------------------------------------------------------------------------
echo "[4/6] Setting up network bridge and TAP interfaces..."
# Create bridge
ip link add name "$BRIDGE" type bridge 2>/dev/null || true
ip addr add "$BRIDGE_IP" dev "$BRIDGE" 2>/dev/null || true
ip link set "$BRIDGE" up
# Create TAP interfaces and attach to bridge
for i in $(seq 0 $((N_NODES - 1))); do
TAP="tap${i}"
ip tuntap add dev "$TAP" mode tap 2>/dev/null || true
ip link set "$TAP" master "$BRIDGE"
ip link set "$TAP" up
echo " $TAP -> $BRIDGE"
done
echo ""
# ---------------------------------------------------------------------------
# 5. Start aggregator and QEMU instances
# ---------------------------------------------------------------------------
echo "[5/6] Starting aggregator and $N_NODES QEMU nodes..."
# Start Rust aggregator in background
echo " Starting aggregator: listen=0.0.0.0:$AGG_PORT expect-nodes=$N_NODES"
cargo run --manifest-path "$RUST_DIR/Cargo.toml" \
-p wifi-densepose-hardware --bin aggregator -- \
--listen "0.0.0.0:$AGG_PORT" \
--expect-nodes "$N_NODES" \
--output "$RESULTS_FILE" \
> "$BUILD_DIR/aggregator.log" 2>&1 &
AGG_PID=$!
echo " Aggregator PID: $AGG_PID"
# Give aggregator a moment to bind
sleep 1
if ! kill -0 "$AGG_PID" 2>/dev/null; then
echo "ERROR: Aggregator failed to start. Check $BUILD_DIR/aggregator.log"
cat "$BUILD_DIR/aggregator.log" 2>/dev/null || true
exit 3
fi
# Launch QEMU instances
for i in $(seq 0 $((N_NODES - 1))); do
TAP="tap${i}"
NODE_FLASH="$BUILD_DIR/qemu_flash_node${i}.bin"
NODE_LOG="$BUILD_DIR/qemu_node${i}.log"
NODE_MAC=$(printf "52:54:00:00:00:%02x" "$i")
echo " Starting QEMU node $i (tap=$TAP, mac=$NODE_MAC)..."
"$QEMU_BIN" \
-machine esp32s3 \
-nographic \
-drive "file=$NODE_FLASH,if=mtd,format=raw" \
-serial "file:$NODE_LOG" \
-no-reboot \
-nic "tap,ifname=$TAP,script=no,downscript=no,mac=$NODE_MAC" \
> /dev/null 2>&1 &
QEMU_PIDS+=($!)
echo " PID: ${QEMU_PIDS[-1]}, log: $NODE_LOG"
done
echo ""
echo "All nodes launched. Waiting ${TIMEOUT}s for mesh simulation..."
echo ""
# ---------------------------------------------------------------------------
# Wait for timeout
# ---------------------------------------------------------------------------
sleep "$TIMEOUT"
echo "Timeout reached. Stopping all processes..."
# Kill QEMU instances (aggregator killed in cleanup)
for pid in "${QEMU_PIDS[@]}"; do
if kill -0 "$pid" 2>/dev/null; then
kill "$pid" 2>/dev/null || true
fi
done
# Give aggregator a moment to flush results
sleep 2
# Kill aggregator
if [ -n "$AGG_PID" ] && kill -0 "$AGG_PID" 2>/dev/null; then
kill "$AGG_PID" 2>/dev/null || true
wait "$AGG_PID" 2>/dev/null || true
fi
echo ""
# ---------------------------------------------------------------------------
# 6. Validate results
# ---------------------------------------------------------------------------
echo "[6/6] Validating mesh test results..."
VALIDATE_ARGS=("--nodes" "$N_NODES")
# Pass results file if it was produced
if [ -f "$RESULTS_FILE" ]; then
VALIDATE_ARGS+=("--results" "$RESULTS_FILE")
else
echo "WARNING: Aggregator results file not found: $RESULTS_FILE"
echo "Validation will rely on node logs only."
fi
# Pass node log files
for i in $(seq 0 $((N_NODES - 1))); do
NODE_LOG="$BUILD_DIR/qemu_node${i}.log"
if [ -f "$NODE_LOG" ]; then
VALIDATE_ARGS+=("--log" "$NODE_LOG")
fi
done
python3 "$VALIDATE_SCRIPT" "${VALIDATE_ARGS[@]}"
VALIDATE_EXIT=$?
echo ""
echo "=== Mesh Test Complete (exit code: $VALIDATE_EXIT) ==="
exit $VALIDATE_EXIT

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#!/bin/bash
# QEMU Snapshot-Based Test Runner — ADR-061 Layer 8
#
# Uses QEMU VM snapshots to accelerate repeated test runs.
# Instead of rebooting and re-initializing for each test scenario,
# we snapshot the VM state after boot and after the first CSI frame,
# then restore from the snapshot for each individual test.
#
# This dramatically reduces per-test wall time from ~15s (full boot)
# to ~2s (snapshot restore + execution).
#
# Environment variables:
# QEMU_PATH - Path to qemu-system-xtensa (default: qemu-system-xtensa)
# QEMU_TIMEOUT - Per-test timeout in seconds (default: 10)
# FLASH_IMAGE - Path to merged flash image (default: build/qemu_flash.bin)
# SKIP_SNAPSHOT - Set to "1" to run without snapshots (baseline timing)
#
# Exit codes:
# 0 PASS — all checks passed
# 1 WARN — non-critical checks failed
# 2 FAIL — critical checks failed
# 3 FATAL — build error, crash, or infrastructure failure
# ── Help ──────────────────────────────────────────────────────────────
usage() {
cat <<'HELP'
Usage: qemu-snapshot-test.sh [OPTIONS]
Use QEMU VM snapshots to accelerate repeated test runs. Snapshots the VM
state after boot and after the first CSI frame, then restores from the
snapshot for each individual test (~2s vs ~15s per test).
Options:
-h, --help Show this help message and exit
Environment variables:
QEMU_PATH Path to qemu-system-xtensa (default: qemu-system-xtensa)
QEMU_TIMEOUT Per-test timeout in seconds (default: 10)
FLASH_IMAGE Path to merged flash image (default: build/qemu_flash.bin)
SKIP_SNAPSHOT Set to "1" to run without snapshots (baseline timing)
Examples:
./qemu-snapshot-test.sh
QEMU_TIMEOUT=20 ./qemu-snapshot-test.sh
FLASH_IMAGE=/path/to/image.bin ./qemu-snapshot-test.sh
Exit codes:
0 PASS — all checks passed
1 WARN — non-critical checks failed
2 FAIL — critical checks failed
3 FATAL — build error, crash, or infrastructure failure
HELP
exit 0
}
case "${1:-}" in -h|--help) usage ;; esac
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
FIRMWARE_DIR="$PROJECT_ROOT/firmware/esp32-csi-node"
BUILD_DIR="$FIRMWARE_DIR/build"
QEMU_BIN="${QEMU_PATH:-qemu-system-xtensa}"
FLASH_IMAGE="${FLASH_IMAGE:-$BUILD_DIR/qemu_flash.bin}"
TIMEOUT_SEC="${QEMU_TIMEOUT:-10}"
MONITOR_SOCK="$BUILD_DIR/qemu-monitor.sock"
LOG_DIR="$BUILD_DIR/snapshot-tests"
QEMU_PID=""
# Timing accumulators
SNAPSHOT_TOTAL_MS=0
BASELINE_TOTAL_MS=0
# Track test results: array of "test_name:exit_code"
declare -a TEST_RESULTS=()
# ──────────────────────────────────────────────────────────────────────
# Cleanup
# ──────────────────────────────────────────────────────────────────────
cleanup() {
echo ""
echo "[cleanup] Shutting down QEMU and removing socket..."
if [ -n "$QEMU_PID" ] && kill -0 "$QEMU_PID" 2>/dev/null; then
kill "$QEMU_PID" 2>/dev/null || true
wait "$QEMU_PID" 2>/dev/null || true
fi
rm -f "$MONITOR_SOCK"
echo "[cleanup] Done."
}
trap cleanup EXIT INT TERM
# ──────────────────────────────────────────────────────────────────────
# Helpers
# ──────────────────────────────────────────────────────────────────────
now_ms() {
# Millisecond timestamp (portable: Linux date +%s%N, macOS perl fallback)
local ns
ns=$(date +%s%N 2>/dev/null)
if [[ "$ns" =~ ^[0-9]+$ ]]; then
echo $(( ns / 1000000 ))
else
perl -MTime::HiRes=time -e 'printf "%d\n", time()*1000' 2>/dev/null || \
echo $(( $(date +%s) * 1000 ))
fi
}
monitor_cmd() {
# Send a command to QEMU monitor via socat and capture response
local cmd="$1"
local timeout="${2:-5}"
if ! command -v socat &>/dev/null; then
echo "ERROR: socat not found (required for QEMU monitor)" >&2
return 1
fi
echo "$cmd" | socat - "UNIX-CONNECT:$MONITOR_SOCK,connect-timeout=$timeout" 2>/dev/null
}
wait_for_pattern() {
# Wait until a pattern appears in the log file, or timeout
local log_file="$1"
local pattern="$2"
local timeout="$3"
local elapsed=0
while [ "$elapsed" -lt "$timeout" ]; do
if [ -f "$log_file" ] && grep -q "$pattern" "$log_file" 2>/dev/null; then
return 0
fi
sleep 1
elapsed=$((elapsed + 1))
done
return 1
}
start_qemu() {
# Launch QEMU in background with monitor socket
echo "[qemu] Launching QEMU with monitor socket..."
rm -f "$MONITOR_SOCK"
local qemu_args=(
-machine esp32s3
-nographic
-drive "file=$FLASH_IMAGE,if=mtd,format=raw"
-serial "file:$LOG_DIR/qemu_uart.log"
-no-reboot
-monitor "unix:$MONITOR_SOCK,server,nowait"
)
"$QEMU_BIN" "${qemu_args[@]}" &
QEMU_PID=$!
echo "[qemu] PID=$QEMU_PID"
# Wait for monitor socket to appear
local waited=0
while [ ! -S "$MONITOR_SOCK" ] && [ "$waited" -lt 10 ]; do
sleep 1
waited=$((waited + 1))
done
if [ ! -S "$MONITOR_SOCK" ]; then
echo "ERROR: QEMU monitor socket did not appear after 10s"
return 1
fi
# Verify QEMU is still running
if ! kill -0 "$QEMU_PID" 2>/dev/null; then
echo "ERROR: QEMU process exited prematurely"
return 1
fi
echo "[qemu] Monitor socket ready: $MONITOR_SOCK"
}
save_snapshot() {
local name="$1"
echo "[snapshot] Saving snapshot: $name"
monitor_cmd "savevm $name" 5
echo "[snapshot] Saved: $name"
}
restore_snapshot() {
local name="$1"
echo "[snapshot] Restoring snapshot: $name"
monitor_cmd "loadvm $name" 5
echo "[snapshot] Restored: $name"
}
# ──────────────────────────────────────────────────────────────────────
# Pre-flight checks
# ──────────────────────────────────────────────────────────────────────
echo "=== QEMU Snapshot Test Runner — ADR-061 Layer 8 ==="
echo "QEMU binary: $QEMU_BIN"
echo "Flash image: $FLASH_IMAGE"
echo "Timeout/test: ${TIMEOUT_SEC}s"
echo ""
if ! command -v "$QEMU_BIN" &>/dev/null; then
echo "ERROR: QEMU binary not found: $QEMU_BIN"
echo " Install: sudo apt install qemu-system-misc # Debian/Ubuntu"
echo " Install: brew install qemu # macOS"
echo " Or set QEMU_PATH to the qemu-system-xtensa binary."
exit 3
fi
if ! command -v qemu-img &>/dev/null; then
echo "ERROR: qemu-img not found (needed for snapshot disk management)."
echo " Install: sudo apt install qemu-utils # Debian/Ubuntu"
echo " Install: brew install qemu # macOS"
exit 3
fi
if ! command -v socat &>/dev/null; then
echo "ERROR: socat not found (needed for QEMU monitor communication)."
echo " Install: sudo apt install socat # Debian/Ubuntu"
echo " Install: brew install socat # macOS"
exit 3
fi
if [ ! -f "$FLASH_IMAGE" ]; then
echo "ERROR: Flash image not found: $FLASH_IMAGE"
echo "Run qemu-esp32s3-test.sh first to build the flash image."
exit 3
fi
mkdir -p "$LOG_DIR"
# ──────────────────────────────────────────────────────────────────────
# Phase 1: Boot and create snapshots
# ──────────────────────────────────────────────────────────────────────
echo "── Phase 1: Boot and snapshot creation ──"
echo ""
# Clear any previous UART log
> "$LOG_DIR/qemu_uart.log"
start_qemu
# Wait for boot (look for boot indicators, max 5s)
echo "[boot] Waiting for firmware boot (up to 5s)..."
if wait_for_pattern "$LOG_DIR/qemu_uart.log" "app_main\|main_task\|ESP32-S3" 5; then
echo "[boot] Firmware booted successfully."
else
echo "[boot] No boot indicator found after 5s (continuing anyway)."
fi
# Save post-boot snapshot
save_snapshot "post_boot"
echo ""
# Wait for first mock CSI frame (additional 5s)
echo "[frame] Waiting for first CSI frame (up to 5s)..."
if wait_for_pattern "$LOG_DIR/qemu_uart.log" "frame\|CSI\|mock_csi\|iq_data\|subcarrier" 5; then
echo "[frame] First CSI frame detected."
else
echo "[frame] No frame indicator found after 5s (continuing anyway)."
fi
# Save post-first-frame snapshot
save_snapshot "post_first_frame"
echo ""
# ──────────────────────────────────────────────────────────────────────
# Phase 2: Run tests from snapshot
# ──────────────────────────────────────────────────────────────────────
echo "── Phase 2: Running tests from snapshot ──"
echo ""
TESTS=("test_presence" "test_fall" "test_multi_person")
MAX_EXIT=0
for test_name in "${TESTS[@]}"; do
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo " Test: $test_name"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
test_log="$LOG_DIR/${test_name}.log"
t_start=$(now_ms)
# Restore to post_first_frame state
restore_snapshot "post_first_frame"
# Record current log length so we can extract only new lines
pre_lines=$(wc -l < "$LOG_DIR/qemu_uart.log" 2>/dev/null || echo 0)
# Let execution continue for TIMEOUT_SEC seconds
echo "[test] Running for ${TIMEOUT_SEC}s..."
sleep "$TIMEOUT_SEC"
# Capture only the new log lines produced during this test
tail -n +$((pre_lines + 1)) "$LOG_DIR/qemu_uart.log" > "$test_log"
t_end=$(now_ms)
elapsed_ms=$((t_end - t_start))
SNAPSHOT_TOTAL_MS=$((SNAPSHOT_TOTAL_MS + elapsed_ms))
echo "[test] Captured $(wc -l < "$test_log") lines in ${elapsed_ms}ms"
# Validate
echo "[test] Validating..."
test_exit=0
python3 "$SCRIPT_DIR/validate_qemu_output.py" "$test_log" || test_exit=$?
TEST_RESULTS+=("${test_name}:${test_exit}")
if [ "$test_exit" -gt "$MAX_EXIT" ]; then
MAX_EXIT=$test_exit
fi
echo ""
done
# ──────────────────────────────────────────────────────────────────────
# Phase 3: Baseline timing (without snapshots) for comparison
# ──────────────────────────────────────────────────────────────────────
echo "── Phase 3: Timing comparison ──"
echo ""
# Estimate baseline: full boot (5s) + frame wait (5s) + test run per test
BASELINE_PER_TEST=$((5 + 5 + TIMEOUT_SEC))
BASELINE_TOTAL_MS=$((BASELINE_PER_TEST * ${#TESTS[@]} * 1000))
SNAPSHOT_PER_TEST=$((SNAPSHOT_TOTAL_MS / ${#TESTS[@]}))
echo "Timing Summary:"
echo " Tests run: ${#TESTS[@]}"
echo " With snapshots:"
echo " Total wall time: ${SNAPSHOT_TOTAL_MS}ms"
echo " Per-test average: ${SNAPSHOT_PER_TEST}ms"
echo " Without snapshots (estimated):"
echo " Total wall time: ${BASELINE_TOTAL_MS}ms"
echo " Per-test average: $((BASELINE_PER_TEST * 1000))ms"
echo ""
if [ "$SNAPSHOT_TOTAL_MS" -gt 0 ] && [ "$BASELINE_TOTAL_MS" -gt 0 ]; then
SPEEDUP=$((BASELINE_TOTAL_MS * 100 / SNAPSHOT_TOTAL_MS))
echo " Speedup: ${SPEEDUP}% (${SPEEDUP}x/100)"
else
echo " Speedup: N/A (insufficient data)"
fi
echo ""
# ──────────────────────────────────────────────────────────────────────
# Summary
# ──────────────────────────────────────────────────────────────────────
echo "── Test Results Summary ──"
echo ""
PASS_COUNT=0
FAIL_COUNT=0
for result in "${TEST_RESULTS[@]}"; do
name="${result%%:*}"
code="${result##*:}"
if [ "$code" -le 1 ]; then
echo " [PASS] $name (exit=$code)"
PASS_COUNT=$((PASS_COUNT + 1))
else
echo " [FAIL] $name (exit=$code)"
FAIL_COUNT=$((FAIL_COUNT + 1))
fi
done
echo ""
echo " $PASS_COUNT passed, $FAIL_COUNT failed out of ${#TESTS[@]} tests"
echo ""
echo "=== Snapshot Test Complete (exit code: $MAX_EXIT) ==="
exit "$MAX_EXIT"

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#!/usr/bin/env python3
"""
QEMU Swarm Health Oracle (ADR-062)
Validates collective health of a multi-node ESP32-S3 QEMU swarm.
Checks cross-node assertions like TDM ordering, inter-node communication,
and swarm-level frame rates.
Usage:
python3 swarm_health.py --config swarm_config.yaml --log-dir build/swarm_logs/
python3 swarm_health.py --log-dir build/swarm_logs/ --assertions all_nodes_boot no_crashes
"""
import argparse
import re
import sys
from dataclasses import dataclass, field
from pathlib import Path
from typing import Any, Dict, List, Optional
try:
import yaml
except ImportError:
yaml = None # type: ignore[assignment]
# ---------------------------------------------------------------------------
# ANSI helpers (disabled when not a TTY)
# ---------------------------------------------------------------------------
USE_COLOR = sys.stdout.isatty()
def _color(text: str, code: str) -> str:
return f"\033[{code}m{text}\033[0m" if USE_COLOR else text
def green(t: str) -> str:
return _color(t, "32")
def yellow(t: str) -> str:
return _color(t, "33")
def red(t: str) -> str:
return _color(t, "1;31")
# ---------------------------------------------------------------------------
# Data types
# ---------------------------------------------------------------------------
@dataclass
class AssertionResult:
"""Result of a single swarm-level assertion."""
name: str
passed: bool
message: str
severity: int # 0 = pass, 1 = warn, 2 = fail
@dataclass
class NodeLog:
"""Parsed log for a single QEMU node."""
node_id: int
lines: List[str]
text: str
# ---------------------------------------------------------------------------
# Log loading
# ---------------------------------------------------------------------------
def load_logs(log_dir: Path, node_count: int) -> List[NodeLog]:
"""Load qemu_node{i}.log (or node_{i}.log fallback) from *log_dir*."""
logs: List[NodeLog] = []
for i in range(node_count):
path = log_dir / f"qemu_node{i}.log"
if not path.exists():
path = log_dir / f"node_{i}.log"
if path.exists():
text = path.read_text(encoding="utf-8", errors="replace")
else:
text = ""
logs.append(NodeLog(node_id=i, lines=text.splitlines(), text=text))
return logs
def _node_count_from_dir(log_dir: Path) -> int:
"""Auto-detect node count by scanning for qemu_node*.log (or node_*.log) files."""
count = 0
while (log_dir / f"qemu_node{count}.log").exists() or (log_dir / f"node_{count}.log").exists():
count += 1
return count
# ---------------------------------------------------------------------------
# Individual assertions
# ---------------------------------------------------------------------------
_BOOT_PATTERNS = [
r"app_main\(\)", r"main_task:", r"main:", r"ESP32-S3 CSI Node",
]
_CRASH_PATTERNS = [
r"Guru Meditation", r"assert failed", r"abort\(\)", r"panic",
r"LoadProhibited", r"StoreProhibited", r"InstrFetchProhibited",
r"IllegalInstruction", r"Unhandled debug exception", r"Fatal exception",
]
_HEAP_PATTERNS = [
r"HEAP_ERROR", r"out of memory", r"heap_caps_alloc.*failed",
r"malloc.*fail", r"heap corruption", r"CORRUPT HEAP",
r"multi_heap", r"heap_lock",
]
_FRAME_PATTERNS = [
r"frame", r"CSI", r"mock_csi", r"iq_data", r"subcarrier",
r"csi_collector", r"enqueue",
]
_FALL_PATTERNS = [r"fall[=: ]+1", r"fall detected", r"fall_event"]
def assert_all_nodes_boot(logs: List[NodeLog], timeout_s: float = 10.0) -> AssertionResult:
"""Check each node's log for boot patterns."""
missing: List[int] = []
for nl in logs:
found = any(
re.search(p, nl.text) for p in _BOOT_PATTERNS
)
if not found:
missing.append(nl.node_id)
if not missing:
return AssertionResult(
name="all_nodes_boot", passed=True,
message=f"All {len(logs)} nodes booted (timeout={timeout_s}s)",
severity=0,
)
return AssertionResult(
name="all_nodes_boot", passed=False,
message=f"Nodes missing boot indicator: {missing}",
severity=2,
)
def assert_no_crashes(logs: List[NodeLog]) -> AssertionResult:
"""Check no node has crash patterns."""
crashed: List[str] = []
for nl in logs:
for line in nl.lines:
for pat in _CRASH_PATTERNS:
if re.search(pat, line):
crashed.append(f"node_{nl.node_id}: {line.strip()[:100]}")
break
if crashed and crashed[-1].startswith(f"node_{nl.node_id}:"):
break # one crash per node is enough
if not crashed:
return AssertionResult(
name="no_crashes", passed=True,
message="No crash indicators in any node",
severity=0,
)
return AssertionResult(
name="no_crashes", passed=False,
message=f"Crashes found: {crashed[0]}" + (
f" (+{len(crashed)-1} more)" if len(crashed) > 1 else ""
),
severity=2,
)
def assert_tdm_no_collision(logs: List[NodeLog]) -> AssertionResult:
"""Parse TDM slot assignments from logs, verify uniqueness."""
slot_map: Dict[int, List[int]] = {} # slot -> [node_ids]
tdm_pat = re.compile(r"tdm[_ ]?slot[=: ]+(\d+)", re.IGNORECASE)
for nl in logs:
for line in nl.lines:
m = tdm_pat.search(line)
if m:
slot = int(m.group(1))
slot_map.setdefault(slot, [])
if nl.node_id not in slot_map[slot]:
slot_map[slot].append(nl.node_id)
break # first occurrence per node
collisions = {s: nids for s, nids in slot_map.items() if len(nids) > 1}
if not slot_map:
return AssertionResult(
name="tdm_no_collision", passed=True,
message="No TDM slot assignments found (may be N/A)",
severity=0,
)
if not collisions:
return AssertionResult(
name="tdm_no_collision", passed=True,
message=f"TDM slots unique across {len(slot_map)} assignments",
severity=0,
)
return AssertionResult(
name="tdm_no_collision", passed=False,
message=f"TDM collisions: {collisions}",
severity=2,
)
def assert_all_nodes_produce_frames(
logs: List[NodeLog],
sensor_ids: Optional[List[int]] = None,
) -> AssertionResult:
"""Each sensor node has CSI frame output.
Args:
logs: Parsed node logs.
sensor_ids: If provided, only check these node IDs (skip coordinators).
If None, check all nodes (legacy behavior).
"""
silent: List[int] = []
for nl in logs:
if sensor_ids is not None and nl.node_id not in sensor_ids:
continue
found = any(
re.search(p, line, re.IGNORECASE)
for line in nl.lines for p in _FRAME_PATTERNS
)
if not found:
silent.append(nl.node_id)
checked = len(sensor_ids) if sensor_ids is not None else len(logs)
if not silent:
return AssertionResult(
name="all_nodes_produce_frames", passed=True,
message=f"All {checked} checked nodes show frame activity",
severity=0,
)
return AssertionResult(
name="all_nodes_produce_frames", passed=False,
message=f"Nodes with no frame activity: {silent}",
severity=1,
)
def assert_coordinator_receives_from_all(
logs: List[NodeLog],
coordinator_id: int = 0,
sensor_ids: Optional[List[int]] = None,
) -> AssertionResult:
"""Coordinator log shows frames from each sensor's node_id."""
coord_log = None
for nl in logs:
if nl.node_id == coordinator_id:
coord_log = nl
break
if coord_log is None:
return AssertionResult(
name="coordinator_receives_from_all", passed=False,
message=f"Coordinator node_{coordinator_id} log not found",
severity=2,
)
if sensor_ids is None:
sensor_ids = [nl.node_id for nl in logs if nl.node_id != coordinator_id]
missing: List[int] = []
recv_pat = re.compile(r"(from|node_id|src)[=: ]+(\d+)", re.IGNORECASE)
received_ids: set = set()
for line in coord_log.lines:
m = recv_pat.search(line)
if m:
received_ids.add(int(m.group(2)))
for sid in sensor_ids:
if sid not in received_ids:
missing.append(sid)
if not missing:
return AssertionResult(
name="coordinator_receives_from_all", passed=True,
message=f"Coordinator received from all sensors: {sensor_ids}",
severity=0,
)
return AssertionResult(
name="coordinator_receives_from_all", passed=False,
message=f"Coordinator missing frames from nodes: {missing}",
severity=1,
)
def assert_fall_detected(logs: List[NodeLog], node_id: int) -> AssertionResult:
"""Specific node reports fall detection."""
for nl in logs:
if nl.node_id == node_id:
found = any(
re.search(p, line, re.IGNORECASE)
for line in nl.lines for p in _FALL_PATTERNS
)
if found:
return AssertionResult(
name=f"fall_detected_node_{node_id}", passed=True,
message=f"Node {node_id} reported fall event",
severity=0,
)
return AssertionResult(
name=f"fall_detected_node_{node_id}", passed=False,
message=f"Node {node_id} did not report fall event",
severity=1,
)
return AssertionResult(
name=f"fall_detected_node_{node_id}", passed=False,
message=f"Node {node_id} log not found",
severity=2,
)
def assert_frame_rate_above(logs: List[NodeLog], min_fps: float = 10.0) -> AssertionResult:
"""Each node meets minimum frame rate."""
fps_pat = re.compile(r"(?:fps|frame.?rate)[=: ]+([0-9.]+)", re.IGNORECASE)
count_pat = re.compile(r"(?:frame[_ ]?count|frames)[=: ]+(\d+)", re.IGNORECASE)
below: List[str] = []
for nl in logs:
best_fps: Optional[float] = None
# Try explicit FPS
for line in nl.lines:
m = fps_pat.search(line)
if m:
try:
best_fps = max(best_fps or 0.0, float(m.group(1)))
except ValueError:
pass
# Fallback: estimate from frame count (assume 1-second intervals)
if best_fps is None:
counts = []
for line in nl.lines:
m = count_pat.search(line)
if m:
try:
counts.append(int(m.group(1)))
except ValueError:
pass
if len(counts) >= 2:
best_fps = float(counts[-1] - counts[0]) / max(len(counts) - 1, 1)
if best_fps is not None and best_fps < min_fps:
below.append(f"node_{nl.node_id}={best_fps:.1f}")
if not below:
return AssertionResult(
name="frame_rate_above", passed=True,
message=f"All nodes meet minimum {min_fps} fps",
severity=0,
)
return AssertionResult(
name="frame_rate_above", passed=False,
message=f"Nodes below {min_fps} fps: {', '.join(below)}",
severity=1,
)
def assert_max_boot_time(logs: List[NodeLog], max_seconds: float = 10.0) -> AssertionResult:
"""All nodes boot within N seconds (based on timestamp in log)."""
boot_time_pat = re.compile(r"\((\d+)\)\s", re.IGNORECASE)
slow: List[str] = []
for nl in logs:
boot_found = False
for line in nl.lines:
if any(re.search(p, line) for p in _BOOT_PATTERNS):
boot_found = True
m = boot_time_pat.search(line)
if m:
ms = int(m.group(1))
if ms > max_seconds * 1000:
slow.append(f"node_{nl.node_id}={ms}ms")
break
if not boot_found:
slow.append(f"node_{nl.node_id}=no_boot")
if not slow:
return AssertionResult(
name="max_boot_time", passed=True,
message=f"All nodes booted within {max_seconds}s",
severity=0,
)
return AssertionResult(
name="max_boot_time", passed=False,
message=f"Slow/missing boot: {', '.join(slow)}",
severity=1,
)
def assert_no_heap_errors(logs: List[NodeLog]) -> AssertionResult:
"""No OOM/heap errors in any log."""
errors: List[str] = []
for nl in logs:
for line in nl.lines:
for pat in _HEAP_PATTERNS:
if re.search(pat, line, re.IGNORECASE):
errors.append(f"node_{nl.node_id}: {line.strip()[:100]}")
break
if errors and errors[-1].startswith(f"node_{nl.node_id}:"):
break
if not errors:
return AssertionResult(
name="no_heap_errors", passed=True,
message="No heap errors in any node",
severity=0,
)
return AssertionResult(
name="no_heap_errors", passed=False,
message=f"Heap errors: {errors[0]}" + (
f" (+{len(errors)-1} more)" if len(errors) > 1 else ""
),
severity=2,
)
# ---------------------------------------------------------------------------
# Assertion registry & dispatcher
# ---------------------------------------------------------------------------
ASSERTION_REGISTRY: Dict[str, Any] = {
"all_nodes_boot": assert_all_nodes_boot,
"no_crashes": assert_no_crashes,
"tdm_no_collision": assert_tdm_no_collision,
"all_nodes_produce_frames": assert_all_nodes_produce_frames,
"coordinator_receives_from_all": assert_coordinator_receives_from_all,
"frame_rate_above": assert_frame_rate_above,
"max_boot_time": assert_max_boot_time,
"no_heap_errors": assert_no_heap_errors,
# fall_detected is parameterized, handled separately
}
def _parse_assertion_spec(spec: Any) -> tuple:
"""Parse a YAML assertion entry into (name, kwargs).
Supported forms:
- "all_nodes_boot" -> ("all_nodes_boot", {})
- {"frame_rate_above": 15} -> ("frame_rate_above", {"min_fps": 15})
- "fall_detected_by_node_2" -> ("fall_detected", {"node_id": 2})
- {"max_boot_time_s": 10} -> ("max_boot_time", {"max_seconds": 10})
"""
if isinstance(spec, str):
# Check for fall_detected_by_node_N pattern
m = re.match(r"fall_detected_by_node_(\d+)", spec)
if m:
return ("fall_detected", {"node_id": int(m.group(1))})
return (spec, {})
if isinstance(spec, dict):
for key, val in spec.items():
m = re.match(r"fall_detected_by_node_(\d+)", str(key))
if m:
return ("fall_detected", {"node_id": int(m.group(1))})
if key == "frame_rate_above":
return ("frame_rate_above", {"min_fps": float(val)})
if key == "max_boot_time_s":
return ("max_boot_time", {"max_seconds": float(val)})
if key == "coordinator_receives_from_all":
return ("coordinator_receives_from_all", {})
return (str(key), {})
return (str(spec), {})
def run_assertions(
logs: List[NodeLog],
assertion_specs: List[Any],
config: Optional[Dict] = None,
) -> List[AssertionResult]:
"""Run all requested assertions against loaded logs."""
results: List[AssertionResult] = []
# Derive coordinator/sensor IDs from config if available
coordinator_id = 0
sensor_ids: Optional[List[int]] = None
if config and "nodes" in config:
for node_def in config["nodes"]:
if node_def.get("role") == "coordinator":
coordinator_id = node_def.get("node_id", 0)
sensor_ids = [
n["node_id"] for n in config["nodes"]
if n.get("role") == "sensor"
]
for spec in assertion_specs:
name, kwargs = _parse_assertion_spec(spec)
if name == "fall_detected":
results.append(assert_fall_detected(logs, **kwargs))
elif name == "coordinator_receives_from_all":
results.append(assert_coordinator_receives_from_all(
logs, coordinator_id=coordinator_id, sensor_ids=sensor_ids,
))
elif name == "all_nodes_produce_frames":
results.append(assert_all_nodes_produce_frames(
logs, sensor_ids=sensor_ids, **kwargs,
))
elif name in ASSERTION_REGISTRY:
fn = ASSERTION_REGISTRY[name]
results.append(fn(logs, **kwargs))
else:
results.append(AssertionResult(
name=name, passed=False,
message=f"Unknown assertion: {name}",
severity=1,
))
return results
# ---------------------------------------------------------------------------
# Report printing
# ---------------------------------------------------------------------------
def print_report(results: List[AssertionResult], swarm_name: str = "") -> int:
"""Print the assertion report and return max severity."""
header = "QEMU Swarm Health Report (ADR-062)"
if swarm_name:
header += f" - {swarm_name}"
print()
print("=" * 60)
print(f" {header}")
print("=" * 60)
print()
max_sev = 0
for r in results:
if r.severity == 0:
icon = green("PASS")
elif r.severity == 1:
icon = yellow("WARN")
else:
icon = red("FAIL")
print(f" [{icon}] {r.name}: {r.message}")
max_sev = max(max_sev, r.severity)
print()
passed = sum(1 for r in results if r.passed)
total = len(results)
summary = f" {passed}/{total} assertions passed"
if max_sev == 0:
print(green(summary))
elif max_sev == 1:
print(yellow(summary + " (with warnings)"))
else:
print(red(summary + " (with failures)"))
print()
return max_sev
# ---------------------------------------------------------------------------
# Main
# ---------------------------------------------------------------------------
def main():
parser = argparse.ArgumentParser(
description="QEMU Swarm Health Oracle (ADR-062)",
formatter_class=argparse.RawDescriptionHelpFormatter,
epilog=(
"Example:\n"
" python3 swarm_health.py --config scripts/swarm_presets/standard.yaml \\\n"
" --log-dir build/swarm_logs/\n"
"\n"
" python3 swarm_health.py --log-dir build/swarm_logs/ \\\n"
" --assertions all_nodes_boot no_crashes\n"
"\n"
"Example output:\n"
" ============================================================\n"
" QEMU Swarm Health Report (ADR-062) - standard\n"
" ============================================================\n"
"\n"
" [PASS] all_nodes_boot: All 3 nodes booted (timeout=10.0s)\n"
" [PASS] no_crashes: No crash indicators in any node\n"
" [PASS] tdm_no_collision: TDM slots unique across 3 assignments\n"
" [PASS] all_nodes_produce_frames: All 3 nodes show frame activity\n"
" [PASS] coordinator_receives_from_all: Coordinator received from all\n"
" [WARN] fall_detected_node_2: Node 2 did not report fall event\n"
" [PASS] frame_rate_above: All nodes meet minimum 15.0 fps\n"
"\n"
" 6/7 assertions passed (with warnings)\n"
),
)
parser.add_argument(
"--config", type=str, default=None,
help="Path to swarm YAML config (defines nodes and assertions)",
)
parser.add_argument(
"--log-dir", type=str, required=True,
help="Directory containing node_0.log, node_1.log, etc.",
)
parser.add_argument(
"--assertions", nargs="*", default=None,
help="Override assertions (space-separated). Ignores YAML assertion list.",
)
parser.add_argument(
"--node-count", type=int, default=None,
help="Number of nodes (auto-detected from log files if omitted)",
)
args = parser.parse_args()
log_dir = Path(args.log_dir)
if not log_dir.is_dir():
print(f"ERROR: Log directory not found: {log_dir}", file=sys.stderr)
sys.exit(2)
# Load YAML config if provided
config: Optional[Dict] = None
swarm_name = ""
yaml_assertions: List[Any] = []
if args.config:
if yaml is None:
print("ERROR: PyYAML is required for --config. Install with: pip install pyyaml",
file=sys.stderr)
sys.exit(2)
config_path = Path(args.config)
if not config_path.exists():
print(f"ERROR: Config file not found: {config_path}", file=sys.stderr)
sys.exit(2)
with open(config_path, "r") as f:
config = yaml.safe_load(f)
swarm_name = config.get("swarm", {}).get("name", "")
yaml_assertions = config.get("assertions", [])
# Determine node count
if args.node_count is not None:
node_count = args.node_count
elif config and "nodes" in config:
node_count = len(config["nodes"])
else:
node_count = _node_count_from_dir(log_dir)
if node_count == 0:
print("ERROR: No node logs found and node count not specified.", file=sys.stderr)
sys.exit(2)
# Load logs
logs = load_logs(log_dir, node_count)
# Determine which assertions to run
if args.assertions is not None:
assertion_specs = args.assertions
elif yaml_assertions:
assertion_specs = yaml_assertions
else:
# Default set
assertion_specs = ["all_nodes_boot", "no_crashes", "no_heap_errors"]
# Run assertions
results = run_assertions(logs, assertion_specs, config)
# Print report and exit
max_sev = print_report(results, swarm_name)
sys.exit(max_sev)
if __name__ == "__main__":
main()

31
scripts/swarm_presets/ci_matrix.yaml Normal file
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# CI-optimized preset: 3 nodes, star topology, 30s, minimal assertions
swarm:
name: ci-matrix
duration_s: 30
topology: star
aggregator_port: 5005
nodes:
- role: coordinator
node_id: 0
scenario: 0
channel: 6
edge_tier: 1
- role: sensor
node_id: 1
scenario: 1
channel: 6
tdm_slot: 1
- role: sensor
node_id: 2
scenario: 2
channel: 6
tdm_slot: 2
assertions:
- all_nodes_boot
- no_crashes
- tdm_no_collision
- max_boot_time_s: 10

49
scripts/swarm_presets/heterogeneous.yaml Normal file
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# Mixed scenarios: 5 nodes with different CSI scenarios, star topology, 90s
swarm:
name: heterogeneous
duration_s: 90
topology: star
aggregator_port: 5005
nodes:
- role: coordinator
node_id: 0
scenario: 0
channel: 6
edge_tier: 2
is_gateway: true
- role: sensor
node_id: 1
scenario: 1
channel: 6
tdm_slot: 1
- role: sensor
node_id: 2
scenario: 2
channel: 6
tdm_slot: 2
- role: sensor
node_id: 3
scenario: 3
channel: 6
tdm_slot: 3
- role: sensor
node_id: 4
scenario: 5
channel: 11
tdm_slot: 4
assertions:
- all_nodes_boot
- no_crashes
- tdm_no_collision
- all_nodes_produce_frames
- coordinator_receives_from_all
- fall_detected_by_node_3
- no_heap_errors
- frame_rate_above: 12
- max_boot_time_s: 12

54
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# Scale test: 6 fully-connected nodes in mesh topology, 90s
swarm:
name: large-mesh
duration_s: 90
topology: mesh
aggregator_port: 5005
nodes:
- role: coordinator
node_id: 0
scenario: 0
channel: 6
edge_tier: 2
is_gateway: true
- role: sensor
node_id: 1
scenario: 1
channel: 6
tdm_slot: 1
- role: sensor
node_id: 2
scenario: 2
channel: 6
tdm_slot: 2
- role: sensor
node_id: 3
scenario: 3
channel: 6
tdm_slot: 3
- role: sensor
node_id: 4
scenario: 4
channel: 6
tdm_slot: 4
- role: sensor
node_id: 5
scenario: 5
channel: 6
tdm_slot: 5
assertions:
- all_nodes_boot
- no_crashes
- tdm_no_collision
- all_nodes_produce_frames
- coordinator_receives_from_all
- no_heap_errors
- frame_rate_above: 10
- max_boot_time_s: 15

39
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# Multi-hop relay chain: 4 nodes in line topology, 60s
swarm:
name: line-relay
duration_s: 60
topology: line
aggregator_port: 5005
nodes:
- role: gateway
node_id: 0
scenario: 0
channel: 6
edge_tier: 2
is_gateway: true
- role: coordinator
node_id: 1
scenario: 0
channel: 6
edge_tier: 1
- role: sensor
node_id: 2
scenario: 2
channel: 6
tdm_slot: 2
- role: sensor
node_id: 3
scenario: 1
channel: 6
tdm_slot: 3
assertions:
- all_nodes_boot
- no_crashes
- tdm_no_collision
- all_nodes_produce_frames
- max_boot_time_s: 12

41
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# Ring topology with fault injection: 4 nodes, 75s
swarm:
name: ring-fault
duration_s: 75
topology: ring
aggregator_port: 5005
nodes:
- role: coordinator
node_id: 0
scenario: 0
channel: 6
edge_tier: 2
is_gateway: true
- role: sensor
node_id: 1
scenario: 1
channel: 6
tdm_slot: 1
- role: sensor
node_id: 2
scenario: 2
channel: 6
tdm_slot: 2
- role: sensor
node_id: 3
scenario: 3
channel: 6
tdm_slot: 3
assertions:
- all_nodes_boot
- no_crashes
- tdm_no_collision
- all_nodes_produce_frames
- coordinator_receives_from_all
- no_heap_errors
- max_boot_time_s: 12

24
scripts/swarm_presets/smoke.yaml Normal file
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# Quick CI smoke test: 2 nodes, star topology, 15s duration
swarm:
name: smoke
duration_s: 15
topology: star
aggregator_port: 5005
nodes:
- role: coordinator
node_id: 0
scenario: 0
channel: 6
edge_tier: 1
- role: sensor
node_id: 1
scenario: 1
channel: 6
tdm_slot: 1
assertions:
- all_nodes_boot
- no_crashes
- max_boot_time_s: 10

36
scripts/swarm_presets/standard.yaml Normal file
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# Standard 3-node test: 2 sensors + 1 coordinator, star topology, 60s
swarm:
name: standard
duration_s: 60
topology: star
aggregator_port: 5005
nodes:
- role: coordinator
node_id: 0
scenario: 0
channel: 6
edge_tier: 2
is_gateway: true
- role: sensor
node_id: 1
scenario: 2
channel: 6
tdm_slot: 1
- role: sensor
node_id: 2
scenario: 3
channel: 6
tdm_slot: 2
assertions:
- all_nodes_boot
- no_crashes
- tdm_no_collision
- all_nodes_produce_frames
- coordinator_receives_from_all
- fall_detected_by_node_2
- frame_rate_above: 15
- max_boot_time_s: 10

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#!/usr/bin/env python3
"""
QEMU Multi-Node Mesh Validation (ADR-061 Layer 3)
Validates the output of a multi-node mesh simulation run by qemu-mesh-test.sh.
Parses the aggregator results JSON and per-node UART logs, then runs 6 checks:
1. All nodes booted - every node log contains a boot indicator
2. TDM ordering - slot assignments are sequential 0..N-1
3. No slot collision - no two nodes share a TDM slot
4. Frame count balance - per-node frame counts within +/-10%
5. ADR-018 compliance - magic 0xC5110001 present in frames
6. Vitals per node - each node produced vitals output
Usage:
python3 validate_mesh_test.py --nodes N [results.json] [--log node0.log] ...
Exit codes:
0 All checks passed (or only SKIP-level)
1 Warnings (non-critical checks failed)
2 Errors (critical checks failed)
3 Fatal (crash or missing nodes)
"""
import argparse
import json
import re
import sys
from dataclasses import dataclass, field
from enum import IntEnum
from pathlib import Path
from typing import Dict, List, Optional
# ---------------------------------------------------------------------------
# Severity / reporting (matches validate_qemu_output.py pattern)
# ---------------------------------------------------------------------------
class Severity(IntEnum):
PASS = 0
SKIP = 1
WARN = 2
ERROR = 3
FATAL = 4
USE_COLOR = sys.stdout.isatty()
def color(text: str, code: str) -> str:
if not USE_COLOR:
return text
return f"\033[{code}m{text}\033[0m"
def green(text: str) -> str:
return color(text, "32")
def yellow(text: str) -> str:
return color(text, "33")
def red(text: str) -> str:
return color(text, "31")
def bold_red(text: str) -> str:
return color(text, "1;31")
@dataclass
class CheckResult:
name: str
severity: Severity
message: str
count: int = 0
@dataclass
class ValidationReport:
checks: List[CheckResult] = field(default_factory=list)
def add(self, name: str, severity: Severity, message: str, count: int = 0):
self.checks.append(CheckResult(name, severity, message, count))
@property
def max_severity(self) -> Severity:
if not self.checks:
return Severity.PASS
return max(c.severity for c in self.checks)
def print_report(self):
print("\n" + "=" * 60)
print(" Multi-Node Mesh Validation Report (ADR-061 Layer 3)")
print("=" * 60 + "\n")
for check in self.checks:
if check.severity == Severity.PASS:
icon = green("PASS")
elif check.severity == Severity.SKIP:
icon = yellow("SKIP")
elif check.severity == Severity.WARN:
icon = yellow("WARN")
elif check.severity == Severity.ERROR:
icon = red("FAIL")
else:
icon = bold_red("FATAL")
count_str = f" (count={check.count})" if check.count > 0 else ""
print(f" [{icon}] {check.name}: {check.message}{count_str}")
print()
passed = sum(1 for c in self.checks if c.severity <= Severity.SKIP)
total = len(self.checks)
summary = f" {passed}/{total} checks passed"
max_sev = self.max_severity
if max_sev <= Severity.SKIP:
print(green(summary))
elif max_sev == Severity.WARN:
print(yellow(summary + " (with warnings)"))
elif max_sev == Severity.ERROR:
print(red(summary + " (with errors)"))
else:
print(bold_red(summary + " (FATAL issues detected)"))
print()
# ---------------------------------------------------------------------------
# Log parsing helpers
# ---------------------------------------------------------------------------
def check_node_booted(log_text: str) -> bool:
"""Return True if the log shows a boot indicator."""
boot_patterns = [r"app_main\(\)", r"main_task:", r"main:", r"ESP32-S3 CSI Node"]
return any(re.search(p, log_text) for p in boot_patterns)
def check_node_crashed(log_text: str) -> Optional[str]:
"""Return first crash line or None."""
crash_patterns = [
r"Guru Meditation", r"assert failed", r"abort\(\)",
r"panic", r"LoadProhibited", r"StoreProhibited",
r"InstrFetchProhibited", r"IllegalInstruction",
]
for line in log_text.splitlines():
for pat in crash_patterns:
if re.search(pat, line):
return line.strip()[:120]
return None
def extract_node_id_from_log(log_text: str) -> Optional[int]:
"""Try to extract the node_id from UART log lines."""
patterns = [
r"node_id[=: ]+(\d+)",
r"Node ID[=: ]+(\d+)",
r"TDM slot[=: ]+(\d+)",
]
for line in log_text.splitlines():
for pat in patterns:
m = re.search(pat, line, re.IGNORECASE)
if m:
try:
return int(m.group(1))
except (ValueError, IndexError):
pass
return None
def check_vitals_in_log(log_text: str) -> bool:
"""Return True if the log contains vitals output."""
vitals_patterns = [r"vitals", r"breathing", r"breathing_bpm",
r"heart_rate", r"heartrate"]
return any(
re.search(p, line, re.IGNORECASE)
for line in log_text.splitlines()
for p in vitals_patterns
)
# ---------------------------------------------------------------------------
# Validation
# ---------------------------------------------------------------------------
def validate_mesh(
n_nodes: int,
results_path: Optional[Path],
log_paths: List[Path],
) -> ValidationReport:
"""Run all 6 mesh validation checks."""
report = ValidationReport()
# Load aggregator results if available
results: Optional[dict] = None
if results_path:
if not results_path.exists():
print(f"WARNING: Aggregator results file not found: {results_path}",
file=sys.stderr)
report.add("Results JSON", Severity.WARN,
f"Results file not found: {results_path}")
else:
try:
results = json.loads(results_path.read_text(encoding="utf-8"))
except (json.JSONDecodeError, OSError) as exc:
report.add("Results JSON", Severity.ERROR,
f"Failed to parse results: {exc}")
# Load per-node logs
node_logs: Dict[int, str] = {}
for idx, lp in enumerate(log_paths):
if lp.exists():
node_logs[idx] = lp.read_text(encoding="utf-8", errors="replace")
else:
node_logs[idx] = ""
# ---- Check 1: All nodes booted ----
booted = []
not_booted = []
crashed = []
for idx in range(n_nodes):
log_text = node_logs.get(idx, "")
if not log_text.strip():
not_booted.append(idx)
continue
crash_line = check_node_crashed(log_text)
if crash_line:
crashed.append((idx, crash_line))
if check_node_booted(log_text):
booted.append(idx)
else:
not_booted.append(idx)
if crashed:
crash_desc = "; ".join(f"node {i}: {msg}" for i, msg in crashed)
report.add("All nodes booted", Severity.FATAL,
f"Crash detected: {crash_desc}", count=len(crashed))
elif len(booted) == n_nodes:
report.add("All nodes booted", Severity.PASS,
f"All {n_nodes} nodes booted successfully", count=n_nodes)
elif len(booted) == 0:
report.add("All nodes booted", Severity.FATAL,
f"No nodes booted (expected {n_nodes})")
else:
missing = ", ".join(str(i) for i in not_booted)
report.add("All nodes booted", Severity.ERROR,
f"{len(booted)}/{n_nodes} booted; missing: [{missing}]",
count=len(booted))
# ---- Check 2: TDM ordering ----
# Extract TDM slots either from aggregator results or from logs
tdm_slots: Dict[int, int] = {}
# Try aggregator results first
if results and "nodes" in results:
for node_entry in results["nodes"]:
nid = node_entry.get("node_id")
slot = node_entry.get("tdm_slot")
if nid is not None and slot is not None:
tdm_slots[int(nid)] = int(slot)
# Fall back to log extraction
if not tdm_slots:
for idx in range(n_nodes):
log_text = node_logs.get(idx, "")
nid = extract_node_id_from_log(log_text)
if nid is not None:
tdm_slots[idx] = nid
if len(tdm_slots) == n_nodes:
expected = list(range(n_nodes))
actual = [tdm_slots.get(i, -1) for i in range(n_nodes)]
if actual == expected:
report.add("TDM ordering", Severity.PASS,
f"Slots sequential 0..{n_nodes - 1}")
else:
report.add("TDM ordering", Severity.ERROR,
f"Expected slots {expected}, got {actual}")
elif len(tdm_slots) > 0:
report.add("TDM ordering", Severity.WARN,
f"Only {len(tdm_slots)}/{n_nodes} TDM slots detected",
count=len(tdm_slots))
else:
report.add("TDM ordering", Severity.SKIP,
"No TDM slot info found in results or logs")
# ---- Check 3: No slot collision ----
if tdm_slots:
slot_to_nodes: Dict[int, List[int]] = {}
for nid, slot in tdm_slots.items():
slot_to_nodes.setdefault(slot, []).append(nid)
collisions = {s: nodes for s, nodes in slot_to_nodes.items() if len(nodes) > 1}
if not collisions:
report.add("No slot collision", Severity.PASS,
f"All {len(tdm_slots)} slots unique")
else:
desc = "; ".join(f"slot {s}: nodes {ns}" for s, ns in collisions.items())
report.add("No slot collision", Severity.ERROR,
f"Slot collisions: {desc}", count=len(collisions))
else:
report.add("No slot collision", Severity.SKIP,
"No TDM slot data to check for collisions")
# ---- Check 4: Frame count balance (within +/-10%) ----
frame_counts: Dict[int, int] = {}
# Try aggregator results
if results and "nodes" in results:
for node_entry in results["nodes"]:
nid = node_entry.get("node_id")
fc = node_entry.get("frame_count", node_entry.get("frames", 0))
if nid is not None:
frame_counts[int(nid)] = int(fc)
# Fall back to log extraction
if not frame_counts:
for idx in range(n_nodes):
log_text = node_logs.get(idx, "")
frame_pats = [
r"frame[_ ]count[=: ]+(\d+)",
r"frames?[=: ]+(\d+)",
r"emitted[=: ]+(\d+)",
]
max_fc = 0
for line in log_text.splitlines():
for pat in frame_pats:
m = re.search(pat, line, re.IGNORECASE)
if m:
try:
max_fc = max(max_fc, int(m.group(1)))
except (ValueError, IndexError):
pass
if max_fc > 0:
frame_counts[idx] = max_fc
if len(frame_counts) >= 2:
counts = list(frame_counts.values())
avg = sum(counts) / len(counts)
if avg > 0:
max_deviation = max(abs(c - avg) / avg for c in counts)
details = ", ".join(f"node {nid}={fc}" for nid, fc in sorted(frame_counts.items()))
if max_deviation <= 0.10:
report.add("Frame count balance", Severity.PASS,
f"Within +/-10% (avg={avg:.0f}): {details}",
count=int(avg))
elif max_deviation <= 0.25:
report.add("Frame count balance", Severity.WARN,
f"Deviation {max_deviation:.0%} exceeds 10%: {details}",
count=int(avg))
else:
report.add("Frame count balance", Severity.ERROR,
f"Severe imbalance {max_deviation:.0%}: {details}",
count=int(avg))
else:
report.add("Frame count balance", Severity.ERROR,
"All frame counts are zero")
elif len(frame_counts) == 1:
report.add("Frame count balance", Severity.WARN,
f"Only 1 node reported frames: {frame_counts}")
else:
report.add("Frame count balance", Severity.WARN,
"No frame count data found")
# ---- Check 5: ADR-018 compliance (magic 0xC5110001) ----
ADR018_MAGIC = "c5110001"
magic_found = False
# Check aggregator results
if results:
results_str = json.dumps(results).lower()
if ADR018_MAGIC in results_str or "0xc5110001" in results_str:
magic_found = True
# Also check a dedicated field
if results.get("adr018_magic") or results.get("magic"):
magic_found = True
# Check per-node entries
if "nodes" in results:
for node_entry in results["nodes"]:
magic = node_entry.get("magic", "")
if isinstance(magic, str) and ADR018_MAGIC in magic.lower():
magic_found = True
elif isinstance(magic, int) and magic == 0xC5110001:
magic_found = True
# Check logs for serialization/ADR-018 markers
if not magic_found:
for idx in range(n_nodes):
log_text = node_logs.get(idx, "")
adr018_pats = [
r"0xC5110001",
r"c5110001",
r"ADR-018",
r"magic[=: ]+0x[Cc]5110001",
]
if any(re.search(p, log_text, re.IGNORECASE) for p in adr018_pats):
magic_found = True
break
if magic_found:
report.add("ADR-018 compliance", Severity.PASS,
"Magic 0xC5110001 found in frame data")
else:
report.add("ADR-018 compliance", Severity.WARN,
"Magic 0xC5110001 not found (may require deeper frame inspection)")
# ---- Check 6: Vitals per node ----
vitals_nodes = []
no_vitals_nodes = []
for idx in range(n_nodes):
log_text = node_logs.get(idx, "")
if check_vitals_in_log(log_text):
vitals_nodes.append(idx)
else:
no_vitals_nodes.append(idx)
# Also check aggregator results for vitals data
if results and "nodes" in results:
for node_entry in results["nodes"]:
nid = node_entry.get("node_id")
has_vitals = (
node_entry.get("vitals") is not None
or node_entry.get("breathing_bpm") is not None
or node_entry.get("heart_rate") is not None
)
if has_vitals and nid is not None and int(nid) not in vitals_nodes:
vitals_nodes.append(int(nid))
if int(nid) in no_vitals_nodes:
no_vitals_nodes.remove(int(nid))
if len(vitals_nodes) == n_nodes:
report.add("Vitals per node", Severity.PASS,
f"All {n_nodes} nodes produced vitals output",
count=n_nodes)
elif len(vitals_nodes) > 0:
missing = ", ".join(str(i) for i in no_vitals_nodes)
report.add("Vitals per node", Severity.WARN,
f"{len(vitals_nodes)}/{n_nodes} nodes have vitals; "
f"missing: [{missing}]",
count=len(vitals_nodes))
else:
report.add("Vitals per node", Severity.WARN,
"No vitals output found from any node")
return report
# ---------------------------------------------------------------------------
# Main
# ---------------------------------------------------------------------------
def main():
parser = argparse.ArgumentParser(
description="Validate multi-node mesh QEMU test output (ADR-061 Layer 3)",
formatter_class=argparse.RawDescriptionHelpFormatter,
epilog=(
"Examples:\n"
" python3 validate_mesh_test.py --nodes 3 --results mesh_results.json\n"
" python3 validate_mesh_test.py --nodes 4 --log node0.log --log node1.log"
),
)
parser.add_argument("--results", default=None,
help="Path to mesh_test_results.json from aggregator")
parser.add_argument("--nodes", "-n", type=int, required=True,
help="Expected number of mesh nodes")
parser.add_argument("--log", action="append", default=[],
help="Path to a per-node QEMU log (can be repeated)")
args = parser.parse_args()
if args.nodes < 2:
print("ERROR: --nodes must be >= 2", file=sys.stderr)
sys.exit(3)
results_path = Path(args.results) if args.results else None
log_paths = [Path(lp) for lp in args.log]
# If no log files given, try the conventional paths
if not log_paths:
for i in range(args.nodes):
candidate = Path(f"build/qemu_node{i}.log")
if candidate.exists():
log_paths.append(candidate)
report = validate_mesh(args.nodes, results_path, log_paths)
report.print_report()
# Map max severity to exit code
max_sev = report.max_severity
if max_sev <= Severity.SKIP:
sys.exit(0)
elif max_sev == Severity.WARN:
sys.exit(1)
elif max_sev == Severity.ERROR:
sys.exit(2)
else:
sys.exit(3)
if __name__ == "__main__":
main()

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scripts/validate_qemu_output.py Normal file
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#!/usr/bin/env python3
"""
QEMU ESP32-S3 UART Output Validator (ADR-061)
Parses the UART log captured from a QEMU firmware run and validates
16 checks covering boot, NVS, mock CSI, edge processing, vitals,
presence/fall detection, serialization, crash indicators, scenario
completion, and frame rate sanity.
Usage:
python3 validate_qemu_output.py <log_file>
Exit codes:
0 All checks passed (or only INFO-level skips)
1 Warnings (non-critical checks failed)
2 Errors (critical checks failed)
3 Fatal (crash or corruption detected)
"""
import argparse
import re
import sys
from dataclasses import dataclass, field
from enum import IntEnum
from pathlib import Path
from typing import List, Optional
class Severity(IntEnum):
PASS = 0
SKIP = 1
WARN = 2
ERROR = 3
FATAL = 4
# ANSI color codes (disabled if not a TTY)
USE_COLOR = sys.stdout.isatty()
def color(text: str, code: str) -> str:
if not USE_COLOR:
return text
return f"\033[{code}m{text}\033[0m"
def green(text: str) -> str:
return color(text, "32")
def yellow(text: str) -> str:
return color(text, "33")
def red(text: str) -> str:
return color(text, "31")
def bold_red(text: str) -> str:
return color(text, "1;31")
@dataclass
class CheckResult:
name: str
severity: Severity
message: str
count: int = 0
@dataclass
class ValidationReport:
checks: List[CheckResult] = field(default_factory=list)
def add(self, name: str, severity: Severity, message: str, count: int = 0):
self.checks.append(CheckResult(name, severity, message, count))
@property
def max_severity(self) -> Severity:
if not self.checks:
return Severity.PASS
return max(c.severity for c in self.checks)
def print_report(self):
print("\n" + "=" * 60)
print(" QEMU Firmware Validation Report (ADR-061)")
print("=" * 60 + "\n")
for check in self.checks:
if check.severity == Severity.PASS:
icon = green("PASS")
elif check.severity == Severity.SKIP:
icon = yellow("SKIP")
elif check.severity == Severity.WARN:
icon = yellow("WARN")
elif check.severity == Severity.ERROR:
icon = red("FAIL")
else:
icon = bold_red("FATAL")
count_str = f" (count={check.count})" if check.count > 0 else ""
print(f" [{icon}] {check.name}: {check.message}{count_str}")
print()
passed = sum(1 for c in self.checks if c.severity <= Severity.SKIP)
total = len(self.checks)
summary = f" {passed}/{total} checks passed"
max_sev = self.max_severity
if max_sev <= Severity.SKIP:
print(green(summary))
elif max_sev == Severity.WARN:
print(yellow(summary + " (with warnings)"))
elif max_sev == Severity.ERROR:
print(red(summary + " (with errors)"))
else:
print(bold_red(summary + " (FATAL issues detected)"))
print()
def validate_log(log_text: str) -> ValidationReport:
"""Run all 16 validation checks against the UART log text."""
report = ValidationReport()
lines = log_text.splitlines()
log_lower = log_text.lower()
# ---- Check 1: Boot ----
# Look for app_main() entry or main_task: tag
boot_patterns = [r"app_main\(\)", r"main_task:", r"main:", r"ESP32-S3 CSI Node"]
boot_found = any(re.search(p, log_text) for p in boot_patterns)
if boot_found:
report.add("Boot", Severity.PASS, "Firmware booted successfully")
else:
report.add("Boot", Severity.FATAL, "No boot indicator found (app_main / main_task)")
# ---- Check 2: NVS load ----
nvs_patterns = [r"nvs_config:", r"nvs_config_load", r"NVS", r"csi_cfg"]
nvs_found = any(re.search(p, log_text) for p in nvs_patterns)
if nvs_found:
report.add("NVS load", Severity.PASS, "NVS configuration loaded")
else:
report.add("NVS load", Severity.WARN, "No NVS load indicator found")
# ---- Check 3: Mock CSI init ----
mock_patterns = [r"mock_csi:", r"mock_csi_init", r"Mock CSI", r"MOCK_CSI"]
mock_found = any(re.search(p, log_text) for p in mock_patterns)
if mock_found:
report.add("Mock CSI init", Severity.PASS, "Mock CSI generator initialized")
else:
# This is only expected when mock is enabled
report.add("Mock CSI init", Severity.SKIP,
"No mock CSI indicator (expected if mock not enabled)")
# ---- Check 4: Frame generation ----
# Count frame-related log lines
frame_patterns = [
r"frame[_ ]count[=: ]+(\d+)",
r"frames?[=: ]+(\d+)",
r"emitted[=: ]+(\d+)",
r"mock_csi:.*frame",
r"csi_collector:.*frame",
r"CSI frame",
]
frame_count = 0
for line in lines:
for pat in frame_patterns:
m = re.search(pat, line, re.IGNORECASE)
if m:
if m.lastindex and m.lastindex >= 1:
try:
frame_count = max(frame_count, int(m.group(1)))
except (ValueError, IndexError):
frame_count = max(frame_count, 1)
else:
frame_count = max(frame_count, 1)
if frame_count > 0:
report.add("Frame generation", Severity.PASS,
f"Frames detected", count=frame_count)
else:
# Also count lines mentioning IQ data or subcarriers
iq_lines = sum(1 for line in lines
if re.search(r"(iq_data|subcarrier|I/Q|enqueue)", line, re.IGNORECASE))
if iq_lines > 0:
report.add("Frame generation", Severity.PASS,
"I/Q data activity detected", count=iq_lines)
else:
report.add("Frame generation", Severity.WARN,
"No frame generation activity detected")
# ---- Check 5: Edge pipeline ----
edge_patterns = [r"edge_processing:", r"DSP task", r"edge_init", r"edge_tier"]
edge_found = any(re.search(p, log_text) for p in edge_patterns)
if edge_found:
report.add("Edge pipeline", Severity.PASS, "Edge processing pipeline active")
else:
report.add("Edge pipeline", Severity.WARN,
"No edge processing indicator found")
# ---- Check 6: Vitals output ----
vitals_patterns = [r"vitals", r"breathing", r"presence", r"heartrate",
r"breathing_bpm", r"heart_rate"]
vitals_count = sum(1 for line in lines
if any(re.search(p, line, re.IGNORECASE) for p in vitals_patterns))
if vitals_count > 0:
report.add("Vitals output", Severity.PASS,
"Vitals/breathing/presence output detected", count=vitals_count)
else:
report.add("Vitals output", Severity.WARN,
"No vitals output lines found")
# ---- Check 7: Presence detection ----
presence_patterns = [
r"presence[=: ]+1",
r"presence_score[=: ]+([0-9.]+)",
r"presence detected",
]
presence_found = False
for line in lines:
for pat in presence_patterns:
m = re.search(pat, line, re.IGNORECASE)
if m:
if m.lastindex and m.lastindex >= 1:
try:
score = float(m.group(1))
if score > 0:
presence_found = True
except (ValueError, IndexError):
presence_found = True
else:
presence_found = True
if presence_found:
report.add("Presence detection", Severity.PASS, "Presence detected in output")
else:
report.add("Presence detection", Severity.WARN,
"No presence=1 or presence_score>0 found")
# ---- Check 8: Fall detection ----
fall_patterns = [r"fall[=: ]+1", r"fall detected", r"fall_event"]
fall_found = any(
re.search(p, line, re.IGNORECASE)
for line in lines for p in fall_patterns
)
if fall_found:
report.add("Fall detection", Severity.PASS, "Fall event detected in output")
else:
report.add("Fall detection", Severity.SKIP,
"No fall event (expected if fall scenario not run)")
# ---- Check 9: MAC filter ----
mac_patterns = [r"MAC filter", r"mac_filter", r"dropped.*MAC",
r"filter_mac", r"filtered"]
mac_found = any(
re.search(p, line, re.IGNORECASE)
for line in lines for p in mac_patterns
)
if mac_found:
report.add("MAC filter", Severity.PASS, "MAC filter activity detected")
else:
report.add("MAC filter", Severity.SKIP,
"No MAC filter activity (expected if filter scenario not run)")
# ---- Check 10: ADR-018 serialize ----
serialize_patterns = [r"[Ss]erializ", r"ADR-018", r"stream_sender",
r"UDP.*send", r"udp.*sent"]
serialize_count = sum(1 for line in lines
if any(re.search(p, line) for p in serialize_patterns))
if serialize_count > 0:
report.add("ADR-018 serialize", Severity.PASS,
"Serialization/streaming activity detected", count=serialize_count)
else:
report.add("ADR-018 serialize", Severity.WARN,
"No serialization activity detected")
# ---- Check 11: No crash ----
crash_patterns = [r"Guru Meditation", r"assert failed", r"abort\(\)",
r"panic", r"LoadProhibited", r"StoreProhibited",
r"InstrFetchProhibited", r"IllegalInstruction"]
crash_found = []
for line in lines:
for pat in crash_patterns:
if re.search(pat, line):
crash_found.append(line.strip()[:120])
if not crash_found:
report.add("No crash", Severity.PASS, "No crash indicators found")
else:
report.add("No crash", Severity.FATAL,
f"Crash detected: {crash_found[0]}",
count=len(crash_found))
# ---- Check 12: Heap OK ----
heap_patterns = [r"HEAP_ERROR", r"out of memory", r"heap_caps_alloc.*failed",
r"malloc.*fail", r"heap corruption"]
heap_errors = [line.strip()[:120] for line in lines
if any(re.search(p, line, re.IGNORECASE) for p in heap_patterns)]
if not heap_errors:
report.add("Heap OK", Severity.PASS, "No heap errors found")
else:
report.add("Heap OK", Severity.ERROR,
f"Heap error: {heap_errors[0]}",
count=len(heap_errors))
# ---- Check 13: Stack OK ----
stack_patterns = [r"[Ss]tack overflow", r"stack_overflow",
r"vApplicationStackOverflowHook"]
stack_errors = [line.strip()[:120] for line in lines
if any(re.search(p, line) for p in stack_patterns)]
if not stack_errors:
report.add("Stack OK", Severity.PASS, "No stack overflow detected")
else:
report.add("Stack OK", Severity.FATAL,
f"Stack overflow: {stack_errors[0]}",
count=len(stack_errors))
# ---- Check 14: Clean exit ----
reboot_patterns = [r"Rebooting\.\.\.", r"rst:0x"]
reboot_found = any(
re.search(p, line)
for line in lines for p in reboot_patterns
)
if not reboot_found:
report.add("Clean exit", Severity.PASS,
"No unexpected reboot detected")
else:
report.add("Clean exit", Severity.WARN,
"Reboot detected (may indicate crash or watchdog)")
# ---- Check 15: Scenario completion (when running all scenarios) ----
all_scenarios_pattern = r"All (\d+) scenarios complete"
scenario_match = re.search(all_scenarios_pattern, log_text)
if scenario_match:
n_scenarios = int(scenario_match.group(1))
report.add("Scenario completion", Severity.PASS,
f"All {n_scenarios} scenarios completed", count=n_scenarios)
else:
# Check if individual scenario started indicators exist
scenario_starts = re.findall(r"=== Scenario (\d+) started ===", log_text)
if scenario_starts:
report.add("Scenario completion", Severity.WARN,
f"Started {len(scenario_starts)} scenarios but no completion marker",
count=len(scenario_starts))
else:
report.add("Scenario completion", Severity.SKIP,
"No scenario tracking (single scenario or mock not enabled)")
# ---- Check 16: Frame rate sanity ----
# Extract scenario frame counts and check they're reasonable
frame_reports = re.findall(r"scenario=\d+ frames=(\d+)", log_text)
if frame_reports:
max_frames = max(int(f) for f in frame_reports)
if max_frames > 0:
report.add("Frame rate", Severity.PASS,
f"Peak frame counter: {max_frames}", count=max_frames)
else:
report.add("Frame rate", Severity.ERROR,
"Frame counters are all zero")
else:
report.add("Frame rate", Severity.SKIP,
"No periodic frame reports found")
return report
def main():
parser = argparse.ArgumentParser(
description="Validate QEMU ESP32-S3 UART output (ADR-061)",
formatter_class=argparse.RawDescriptionHelpFormatter,
epilog="Example: python3 validate_qemu_output.py build/qemu_output.log",
)
parser.add_argument(
"log_file",
help="Path to QEMU UART log file",
)
args = parser.parse_args()
log_path = Path(args.log_file)
if not log_path.exists():
print(f"ERROR: Log file not found: {log_path}", file=sys.stderr)
sys.exit(3)
log_text = log_path.read_text(encoding="utf-8", errors="replace")
if not log_text.strip():
print("ERROR: Log file is empty. QEMU may have failed to start.",
file=sys.stderr)
sys.exit(3)
report = validate_log(log_text)
report.print_report()
# Map max severity to exit code
max_sev = report.max_severity
if max_sev <= Severity.SKIP:
sys.exit(0)
elif max_sev == Severity.WARN:
sys.exit(1)
elif max_sev == Severity.ERROR:
sys.exit(2)
else:
sys.exit(3)
if __name__ == "__main__":
main()