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feature/entity-physical-inventory (#187)

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Reviewed-on: graham/towerops-web#187
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Graham McIntire 2026-03-27 10:48:50 -05:00 • committed by graham
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367
BUG_REPORT.md
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# Comprehensive Bug Report - Deep Analysis
**Date:** 2026-03-24
**Scope:** Full codebase audit - logic errors, memory leaks, data integrity, performance
**Status:** 🔴 CRITICAL ISSUES FOUND
---
## 🚨 CRITICAL BUGS (Must Fix Immediately)
### 1. LLDP Neighbor Discovery Completely Broken
**Severity:** CRITICAL
**File:** `lib/towerops/snmp/neighbor_discovery.ex:48-63`
**Impact:** All LLDP topology discovery fails silently
**Bug:**
```elixir
case Client.walk(client_opts, @lldp_rem_table_oid) do
{:ok, entries} when entries != [] -> # ❌ Assumes list, but Client.walk returns MAP
parse_lldp_neighbors(entries, interfaces, mgmt_addresses)
{:ok, entries} when entries == %{} -> # ❌ Only matches empty map
[]
```
**Problem:** `Client.walk` returns `{:ok, %{oid => value}}`, NOT a list. First clause never matches. All LLDP discovery silently returns empty `[]`.
**Fix:**
```elixir
case Client.walk(client_opts, @lldp_rem_table_oid) do
{:ok, entries} when is_map(entries) and map_size(entries) > 0 ->
mgmt_addresses = fetch_lldp_management_addresses(client_opts)
parse_lldp_neighbors(entries, interfaces, mgmt_addresses)
{:ok, _} ->
Logger.debug("No LLDP neighbors found")
[]
```
**Also Affects:** Lines 226-230 (same pattern repeated)
---
### 2. IPv4/IPv6 Address Discovery Broken at Position 0
**Severity:** CRITICAL
**File:** `lib/towerops/snmp/profiles/base.ex:638, 646`
**Impact:** IP addresses at OID position 0 silently ignored
**Bug:**
```elixir
idx = Enum.find_index(parts, &(&1 == "1"))
if idx do # ❌ WRONG: idx=0 is falsy in Elixir!
octets = Enum.slice(parts, idx + 2, 4)
{:ipv4, octets}
end
```
**Problem:** When `idx = 0` (found at position 0), the `if idx` check fails. In Elixir, `0` is NOT falsy, but the check is still wrong pattern. Should use `if not is_nil(idx)`.
**Fix:**
```elixir
idx = Enum.find_index(parts, &(&1 == "1"))
if not is_nil(idx) do
octets = Enum.slice(parts, idx + 2, 4)
{:ipv4, octets}
end
```
---
### 3. Stripe Subscription Update Crashes on Nil
**Severity:** CRITICAL
**File:** `lib/towerops/billing/stripe_client.ex:168`
**Impact:** Subscription cancellations fail, billing broken
**Bug:**
```elixir
item_id = sub |> get_in(["items", "data"]) |> List.first() |> Map.get("id")
```
**Problem:** Chained operations without nil checks:
1. `get_in(sub, ["items", "data"])` returns `nil` if path doesn't exist
2. `List.first(nil)` crashes with `FunctionClauseError`
3. `Map.get(nil, "id")` crashes
4. Even if all succeed, `item_id` could be `nil`
**Fix:**
```elixir
with items when is_list(items) <- get_in(sub, ["items", "data"]),
item when not is_nil(item) <- List.first(items),
item_id when is_binary(item_id) <- Map.get(item, "id") do
# proceed with valid item_id
else
_ -> {:error, :invalid_subscription_structure}
end
```
---
### 4. Memory Leak: LiveView Streams Never Reset
**Severity:** CRITICAL
**Files:**
- `lib/towerops_web/live/device_live/index.ex:35`
- `lib/towerops_web/live/agent_live/index.ex:61, 63`
- `lib/towerops_web/live/admin/agent_live/index.ex:27-28`
**Impact:** Unbounded memory growth proportional to items × sessions
**Bug:**
```elixir
# mount/1
|> stream(:devices, devices) # ❌ No reset: true on initial mount
```
**Problem:** When users navigate away and return, or when PubSub updates arrive, items accumulate. With 1000 devices and 100 user sessions, memory grows to 100,000 device entries.
**Fix:**
```elixir
|> stream(:devices, devices, reset: true) # On mount
```
---
### 5. Memory Leak: Orphaned Timers (Missing terminate/2)
**Severity:** CRITICAL
**Files:**
- `lib/towerops_web/live/device_live/show.ex` — **NO terminate function at all**
- `lib/towerops_web/live/agent_live/index.ex:493` — Timer ref not cancelled
- `lib/towerops_web/live/admin/agent_live/index.ex:112` — Timer ref not cancelled
**Impact:** Orphaned timers fire indefinitely, memory grows with each user session
**Bug (device_live/show.ex):**
```elixir
# Lines 120, 283: Schedules refresh timer
Process.send_after(self(), :refresh_data, 10_000)
# NO terminate/2 function to cancel timer!
```
**Impact:** 100 users viewing device pages = 100 orphaned timers firing every 10 seconds = 1000 messages/second accumulating.
**Fix:**
```elixir
@impl true
def terminate(_reason, socket) do
if ref = socket.assigns[:refresh_timer_ref] do
Process.cancel_timer(ref)
end
:ok
end
```
---
### 6. ETS Table Unbounded Growth (No Cleanup)
**Severity:** CRITICAL
**Files:**
- `lib/towerops/agents/agent_cache.ex:37-45` — TTL but no cleanup process
- `lib/towerops/profiles/mib_cache.ex:30-40` — No eviction policy
**Impact:** Expired entries never deleted, memory grows indefinitely
**Bug:**
```elixir
# agent_cache.ex - entries expire but are NEVER deleted from table
case :ets.lookup(@table, {:device, device_id}) do
[{_, result, expires_at}] when now < expires_at -> result
_ ->
result = Agents.query_device_has_effective_agent?(device_id)
:ets.insert(@table, {{:device, device_id}, result, now + @ttl_ms})
# Expired entry still in table, consuming memory!
result
end
```
**Impact:** 1000 devices polled every 60s = 1000 entries/min. After 1 hour: 60,000 expired entries = 5-10MB wasted memory.
**Fix:** Add GenServer with periodic cleanup:
```elixir
def handle_info(:cleanup_expired, state) do
now = System.monotonic_time(:millisecond)
:ets.select_delete(@table, [{{:_, :_, :"$1"}, [{:<, :"$1", now}], [true]}])
Process.send_after(self(), :cleanup_expired, 60_000)
{:noreply, state}
end
```
---
## 🔴 HIGH SEVERITY BUGS
### 7. Unguarded String.to_integer Crashes
**Severity:** HIGH
**Files:**
- `lib/towerops/monitoring/executors/dns_executor.ex:86`
- `lib/towerops/snmp/neighbor_discovery.ex:124`
**Impact:** DNS checks crash on malformed input, neighbor discovery fails
**Bug (dns_executor.ex):**
```elixir
defp parse_server(server_str) do
case String.split(server_str, ".") do
[a, b, c, d] ->
{{String.to_integer(a), String.to_integer(b), ...}} # ❌ No validation
```
**Problem:** If DNS server is "abc.def.ghi.jkl" or "256.256.256.256", crashes.
**Fix:** Use `Integer.parse` with validation.
---
### 8. N+1 Queries in Dashboard (60+ Queries for 10 Sites)
**Severity:** HIGH
**File:** `lib/towerops/dashboard.ex:203-258`
**Impact:** Dashboard load times scale linearly with site count
**Bug:**
```elixir
Enum.map(sites, fn site ->
Gaiia.get_site_subscriber_summary(site.id) # N queries
Devices.list_site_devices(site.id) # N queries
Enum.map(devices, fn d ->
Preseem.get_access_point_for_device(d.id) # N*M queries
end)
end)
```
**Impact:** 10 sites × 5 devices = 60+ queries instead of 3 batch queries.
**Fix:** Batch load before loop:
```elixir
all_summaries = Gaiia.batch_get_site_summaries(site_ids)
all_preseem = Preseem.batch_get_access_points(device_ids)
```
---
### 9. Unbounded Data Loading Without Pagination
**Severity:** HIGH
**Files:**
- `lib/towerops_web/live/device_live/show.ex:647-653` — Loads ALL subscriber links
- `lib/towerops_web/live/config_timeline_live.ex:254, 286` — Loads ALL APs/checks
**Impact:** Pages crash with "500 Internal Server Error" on large datasets.
**Bug:**
```elixir
# Loads 10,000+ records without limit
Repo.all(from l in DeviceSubscriberLink, where: l.device_id == ^device_id)
```
**Fix:** Add `limit(1000)` and pagination.
---
### 10. Queue Unbounded Growth During Alert Storms
**Severity:** HIGH
**File:** `lib/towerops/alerts/storm_detector.ex:134-139`
**Impact:** 2-5MB memory per hour during alert storms
**Bug:**
```elixir
alert_timestamps =
state.alert_timestamps
|> :queue.in(now_ms)
|> prune_old_timestamps(now_ms - 60_000)
# ❌ No maximum queue size!
```
**Problem:** During alert storm (1000 alerts/min), queue grows to 60,000 entries/hour.
**Fix:** Add max size check:
```elixir
alert_timestamps =
state.alert_timestamps
|> :queue.in(now_ms)
|> prune_old_timestamps(now_ms - 60_000)
|> limit_queue_size(10_000) # Cap at 10k entries
```
---
## 🟡 MEDIUM SEVERITY BUGS
### 11. List.first Without Nil Checks (Multiple Instances)
**Severity:** MEDIUM
**Files:**
- `lib/towerops/snmp.ex:1166, 1172, 1184, 1187, 1190, 1200, 1201`
- `lib/towerops/agents/release_checker.ex:125`
**Impact:** Device records with nil hostname/platform, release checking fails
---
### 12. Inefficient Chained Enum Operations
**Severity:** MEDIUM
**Files:**
- `lib/towerops/snmp.ex:1503` — 3 Enum.map + concat
- `lib/towerops/preseem/fleet_intelligence.ex:46-49` — 4× (map + reject)
- `lib/towerops/maintenance.ex:186` — map + reject + uniq
**Impact:** CPU waste, slower response times
---
### 13. Excessive Device Reloading in LiveView
**Severity:** MEDIUM
**File:** `lib/towerops_web/live/device_live/index.ex`
**Impact:** 9000+ record loads per user interaction
---
## 📊 Summary Statistics
| Category | Critical | High | Medium | Total |
|----------|----------|------|--------|-------|
| Logic Errors | 3 | 2 | 2 | 7 |
| Memory Leaks | 3 | 0 | 0 | 3 |
| Data Integrity | 0 | 3 | 2 | 5 |
| Performance | 0 | 3 | 3 | 6 |
| **TOTALS** | **6** | **8** | **7** | **21** |
---
## 🎯 Recommended Fix Priority
### Week 1 (CRITICAL - Production Impact)
1. ✅ Fix LLDP neighbor discovery type mismatch (topology broken)
2. ✅ Fix IP address discovery nil check (SNMP discovery broken)
3. ✅ Fix Stripe client nil chain (billing broken)
4. ✅ Add `reset: true` to all LiveView streams (memory leak)
5. ✅ Add `terminate/2` to device_live/show.ex (timer leak)
6. ✅ Add timer cleanup to agent_live/index.ex (timer leak)
### Week 2 (HIGH - Stability & Performance)
7. ✅ Fix DNS executor unguarded String.to_integer
8. ✅ Fix N+1 queries in dashboard.ex
9. ✅ Add pagination to device_live/show subscriber links
10. ✅ Implement ETS cleanup for agent_cache and mib_cache
11. ✅ Add max queue size to storm_detector
12. ✅ Fix excessive device reloading in device_live/index
### Week 3 (MEDIUM - Code Quality)
13. ✅ Add nil checks to List.first calls
14. ✅ Optimize chained Enum operations
15. ✅ Add missing foreign_key_constraint validations
16. ✅ Wrap bulk operations in transactions
---
## 🧪 Testing Requirements
**Critical Tests Needed:**
1. LLDP discovery integration test with real SNMP data
2. IP address discovery test at position 0
3. Stripe subscription update with malformed response
4. LiveView stream memory growth test (100 mount/unmount cycles)
5. Timer cleanup test (verify no orphaned processes)
6. ETS cleanup test (verify expired entries are deleted)
7. Dashboard performance test with 50+ sites
---
**Total Issues:** 21 bugs requiring immediate attention
**Estimated Impact:** Could cause production outages, data loss, memory exhaustion

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CHANGELOG.txt
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2026-03-26
feat: add transceivers, printer supplies, and hardware inventory UI tabs
- Added Transceivers tab to device detail page for optical transceiver inventory
- Added Printer Supplies tab to device detail page for printer consumable monitoring
- Added Hardware Inventory tab to device detail page for entity physical inventory
- Tables display transceiver details (type, vendor, part number, serial, wavelength, DOM support)
- Tables display printer supply levels with color-coded progress bars and percentage
- Tables display hardware components (class, name, description, serial, model, manufacturer)
- Low supply warning styling for supplies below 20%
- Empty states when no transceivers, printer supplies, or hardware components detected
- Tabs conditionally shown only when data is available for the device
- Real-time updates via PubSub (:transceivers_updated, :printer_supplies_updated, :hardware_inventory_updated events)
- Added 16 LiveView tests for tab rendering and data display (61 total tests, 0 failures)
Files: lib/towerops_web/live/device_live/show.ex,
lib/towerops_web/live/device_live/show.html.heex,
test/towerops_web/live/device_live/show_test.exs
2026-03-26
feat: implement printer supplies monitoring (C3 - Printer Supplies)
- Added PrinterSupply schema for tracking printer consumables (toner, ink, drums, etc.)
- Supports 15 supply types from RFC 3805 Printer-MIB (toner, ink, drum, fuser, developer, etc.)
- Supports 17 capacity unit types (percent, impressions, grams, milliliters, etc.)
- Automatic supply_percent calculation (current_level / max_capacity * 100)
- Discovery from Printer-MIB prtMarkerSuppliesTable (OID 1.3.6.1.2.1.43.11.1.1.x)
- Maps supply type codes and unit codes from RFC 3805 specification
- Sync function for create/update/delete based on discovered state
- Added 5 context API functions (list, get, filter by type, low supplies, update)
- Integrated into main discovery flow with timeout protection
- All 31 printer supply tests passing (8865 total tests, 0 failures)
Files: lib/towerops/snmp/printer_supply.ex,
lib/towerops/snmp.ex,
lib/towerops/snmp/profiles/base.ex,
lib/towerops/snmp/discovery.ex,
priv/repo/migrations/20260326185002_add_printer_supplies.exs,
test/towerops/snmp/printer_supply_test.exs,
test/towerops/snmp/profiles/base_printer_supply_test.exs,
test/towerops/snmp/discovery/printer_supply_sync_test.exs,
test/towerops/snmp/printer_supply_context_test.exs
2026-03-26
feat: implement transceiver DOM polling (C2 - Optical Transceivers)
- Added continuous polling of Digital Optical Monitoring (DOM) metrics
- Polls optical transceivers for Rx/Tx power, temperature, voltage, bias current
- Only polls transceivers with supports_dom=true flag
- Uses Task.async_stream for concurrent polling (max 2 concurrent)
- Graceful handling of partial data (some metrics nil)
- Graceful handling of SNMP errors (timeouts, no response)
- Added create_transceiver_readings_batch/1 for efficient batch inserts
- Integrated with DevicePollerWorker main polling flow
- Broadcasts PubSub events on transceiver updates
- DOM metrics: rx_power_dbm, tx_power_dbm, bias_current_ma, temperature_celsius, voltage_v
- All 5 DOM polling tests passing (31 total transceiver tests)
Files: lib/towerops/workers/device_poller_worker.ex,
lib/towerops/snmp.ex,
test/towerops/workers/device_poller_transceiver_test.exs
2026-03-26
feat: implement mempools (memory pools) feature for SNMP monitoring
- Added Mempool and MempoolReading schemas for tracking device memory usage

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ENTITY_PHYSICAL_IMPLEMENTATION.md Normal file
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# Entity Physical Inventory Implementation
This document summarizes the comprehensive SNMP hardware inventory and monitoring features implemented in the `feature/entity-physical-inventory` branch.
## Overview
This branch implements four major SNMP discovery and monitoring capabilities:
1. **C1: Memory Pools** (Previously completed)
2. **C2: Optical Transceivers with DOM Polling** ✅ COMPLETE (Backend + UI)
3. **C3: Printer Supplies** ✅ COMPLETE (Backend + UI)
4. **C4: Entity Physical Inventory** ✅ COMPLETE (Backend + UI)
All backend functionality is complete with comprehensive test coverage. UI components for C2, C3, and C4 have been implemented.
## What Was Implemented
### C2: Optical Transceivers / Digital Optical Monitoring (DOM)
**Backend Features:**
- Transceiver discovery from ENTITY-MIB (RFC 4133)
- Support for 12 transceiver types: SFP, SFP+, QSFP, QSFP28, QSFP+, XFP, CFP, CFP2, CFP4, GBIC
- Continuous DOM polling for optical metrics:
- Receive power (dBm)
- Transmit power (dBm)
- Laser bias current (mA)
- Module temperature (°C)
- Supply voltage (V)
- Automatic detection of DOM capability per transceiver
- Concurrent polling with graceful error handling
- Time-series storage in TransceiverReading table
**Test Coverage:**
- 31 total tests (all passing)
- Schema validation (13 tests)
- Discovery and sync (13 tests)
- DOM polling (5 tests)
**Files Added/Modified:**
- `lib/towerops/snmp/transceiver.ex` - Schema
- `lib/towerops/snmp/transceiver_reading.ex` - Time-series schema
- `lib/towerops/snmp/profiles/base.ex` - Discovery logic
- `lib/towerops/workers/device_poller_worker.ex` - Polling integration
- `lib/towerops/snmp.ex` - Context API (6 functions)
- `lib/towerops/snmp/discovery.ex` - Sync logic
- 4 comprehensive test files
### C3: Printer Supplies
**Backend Features:**
- Printer supply discovery from Printer-MIB (RFC 3805)
- Support for 15 supply types: toner, ink, drum, fuser, developer, coronaWire, cleanerUnit, etc.
- Support for 17 capacity unit types: percent, impressions, grams, milliliters, etc.
- Automatic percentage calculation (current_level / max_capacity * 100)
- Fields tracked:
- Supply type and description
- Maximum capacity and current level
- Color name (for multi-color printers)
- Part number
- Capacity unit
- Context API for querying and filtering supplies
- Low supply detection by threshold percentage
**Test Coverage:**
- 31 total tests (all passing)
- Schema validation (9 tests)
- Discovery from Printer-MIB (5 tests)
- Sync operations (6 tests)
- Context API (11 tests)
**Files Added/Modified:**
- `lib/towerops/snmp/printer_supply.ex` - Schema
- `lib/towerops/snmp/profiles/base.ex` - Discovery logic
- `lib/towerops/snmp/discovery.ex` - Sync logic
- `lib/towerops/snmp.ex` - Context API (5 functions)
- 4 comprehensive test files
## Test Results
**Final Test Suite:**
- Total: 8,865 tests
- Failures: 0
- Skipped: 73
- New tests added: 62 (31 transceivers + 31 printer supplies)
All tests follow TDD methodology with RED-GREEN-REFACTOR cycles.
## Architecture Patterns
### Discovery Flow
1. SNMP walk of relevant MIB tables
2. Parse and normalize discovered data
3. Sync to database (create/update/delete)
4. Broadcast PubSub events for real-time updates
### Polling Flow (DOM only)
1. Filter to DOM-capable transceivers
2. Concurrent polling via Task.async_stream
3. Batch insert readings for efficiency
4. Graceful error handling
### Context API Pattern
Each entity type provides:
- `list_*` - List all for device
- `get_*` - Get single by ID
- `get_*_by_*` - Filter by attribute
- `update_*` - Update attributes
- Additional query functions as needed
### Database Design
- Binary ID primary keys (UUIDs)
- Foreign keys to snmp_devices with cascade delete
- Unique constraints on device + index
- Proper indexes for common queries
- Timestamps (utc_datetime)
## Integration Points
### Discovery Integration
Both transceiver and printer supply discovery are integrated into the main SNMP discovery flow:
1. Called during initial device discovery
2. Re-run periodically via Oban background jobs
3. Protected by timeout wrappers (DeferredDiscovery)
4. Results synced to database automatically
### Polling Integration (Transceivers only)
DOM polling is integrated into DevicePollerWorker:
1. Runs every 60 seconds (configurable per device)
2. Executes in parallel with other polling tasks
3. Uses batch inserts for efficiency
4. Broadcasts PubSub events on completion
## API Reference
### Transceiver Context API
```elixir
# List all transceivers for a device
Snmp.list_transceivers(snmp_device_id)
# Get single transceiver
Snmp.get_transceiver(transceiver_id)
# Filter by type
Snmp.get_transceivers_by_type(snmp_device_id, "SFP+")
# Get only DOM-capable
Snmp.list_transceivers_with_dom(snmp_device_id)
# Get with latest reading
Snmp.get_transceiver_with_latest_reading(transceiver_id)
# Update attributes
Snmp.update_transceiver(transceiver, %{vendor_name: "New Vendor"})
```
### Printer Supply Context API
```elixir
# List all supplies for a device
Snmp.list_printer_supplies(snmp_device_id)
# Get single supply
Snmp.get_printer_supply(supply_id)
# Filter by type
Snmp.get_printer_supplies_by_type(snmp_device_id, "toner")
# Get low supplies
Snmp.get_low_printer_supplies(snmp_device_id, 30) # Below 30%
# Update attributes
Snmp.update_printer_supply(supply, %{current_level: 5000})
```
## Database Schema
### Transceivers
```sql
CREATE TABLE transceivers (
id UUID PRIMARY KEY,
snmp_device_id UUID NOT NULL REFERENCES snmp_devices(id) ON DELETE CASCADE,
port_index VARCHAR NOT NULL,
transceiver_type VARCHAR,
vendor_name VARCHAR,
vendor_part_number VARCHAR,
vendor_serial_number VARCHAR,
vendor_revision VARCHAR,
wavelength_nm INTEGER,
connector_type VARCHAR,
nominal_bitrate_mbps INTEGER,
supports_dom BOOLEAN DEFAULT FALSE,
entity_physical_id UUID REFERENCES entity_physical(id) ON DELETE SET NULL,
inserted_at TIMESTAMP NOT NULL,
updated_at TIMESTAMP NOT NULL,
UNIQUE(snmp_device_id, port_index)
);
CREATE TABLE transceiver_readings (
id UUID PRIMARY KEY,
transceiver_id UUID NOT NULL REFERENCES transceivers(id) ON DELETE CASCADE,
rx_power_dbm FLOAT,
tx_power_dbm FLOAT,
bias_current_ma FLOAT,
temperature_celsius FLOAT,
voltage_v FLOAT,
measured_at TIMESTAMP NOT NULL,
inserted_at TIMESTAMP NOT NULL,
updated_at TIMESTAMP NOT NULL
);
CREATE INDEX ON transceiver_readings(transceiver_id, measured_at DESC);
```
### Printer Supplies
```sql
CREATE TABLE printer_supplies (
id UUID PRIMARY KEY,
snmp_device_id UUID NOT NULL REFERENCES snmp_devices(id) ON DELETE CASCADE,
supply_index VARCHAR NOT NULL,
supply_type VARCHAR,
supply_description VARCHAR,
supply_unit VARCHAR,
max_capacity INTEGER,
current_level INTEGER,
color_name VARCHAR,
part_number VARCHAR,
inserted_at TIMESTAMP NOT NULL,
updated_at TIMESTAMP NOT NULL,
UNIQUE(snmp_device_id, supply_index)
);
CREATE INDEX ON printer_supplies(snmp_device_id);
```
## UI Implementation (Completed)
### Transceiver Tab ✅
Implemented in `device_live/show.ex` and `show.html.heex`:
- ✅ Table view of installed transceivers with port, type, vendor, part number, serial number
- ✅ Wavelength display (nm)
- ✅ DOM capability badge (green badge for modules with supports_dom=true)
- ✅ Empty state when no transceivers detected
- ✅ Conditionally shown tab (only appears when transceivers exist)
- ✅ Real-time updates via PubSub (:transceivers_updated events)
- ⏳ Historical DOM charts (future enhancement - requires time-series data from TransceiverReading)
- ⏳ Link to parent entity_physical (future enhancement)
### Printer Supplies Tab ✅
Implemented in `device_live/show.ex` and `show.html.heex`:
- ✅ Table view showing type, description, color, part number, level
- ✅ Color-coded level indicators with progress bars (red < 20%, yellow < 40%, green ≥ 40%)
- ✅ Percentage display calculated from current_level / max_capacity
- ✅ Type badges with color coding (toner=gray, ink=blue, drum=purple)
- ✅ Empty state when no printer supplies detected
- ✅ Conditionally shown tab (only appears when supplies exist)
- ✅ Real-time updates via PubSub (:printer_supplies_updated events)
### Hardware Inventory Tab ✅
Implemented in `device_live/show.ex` and `show.html.heex`:
- ✅ Table view showing entity class, name, description, serial number, model, manufacturer
- ✅ Class badges with consistent styling
- ✅ Empty state when no hardware components detected
- ✅ Conditionally shown tab (only appears when hardware inventory exists)
- ✅ Real-time updates via PubSub (:hardware_inventory_updated events)
- ⏳ Hierarchical display with indentation (future enhancement)
- ⏳ Expandable/collapsible tree view (future enhancement)
### Test Coverage ✅
Added 16 comprehensive LiveView tests in `show_test.exs`:
- 5 transceiver tab tests (table rendering, DOM badges, empty states, tab navigation)
- 6 printer supplies tab tests (table rendering, level bars, low supply warnings, empty states, tab navigation)
- 5 hardware inventory tab tests (table rendering, hierarchical structure, empty states, tab navigation)
- All 61 tests in show_test.exs passing (0 failures)
### Future Enhancements
**Transceiver Enhancements:**
- Vendor-specific MIB support for DOM (currently uses simulated OIDs)
- Vendor profiles (MikroTik, Cisco, Juniper, etc.)
- Optical power threshold alerts
- Degraded link quality detection
**Printer Supply Enhancements:**
- Supply replacement alerts
- Estimated time until empty
- Supply ordering integration
- Multi-vendor printer support
## Commits
This branch contains 11 commits:
1. `69ce6a3f` - feat: add transceiver DOM polling
2. `d982a5d0` - docs: update findings to reflect DOM polling completion
3. `73b19b0d` - feat: add PrinterSupply schema and tests
4. `274b1b96` - feat: add printer supply discovery from Printer-MIB
5. `1a388507` - feat: add printer supply sync function
6. `e0431d27` - feat: add printer supply context API functions
7. `7bdf18b8` - feat: integrate printer supply discovery into main flow
8. `5a570a24` - docs: mark C3 (Printer Supplies) as complete in findings
9. `7a6edafa` - docs: update changelogs for DOM polling and printer supplies
10. `17a156aa` - feat: integrate transceiver discovery into main discovery flow
11. `b0b30a67` - docs: mark C2 (Transceivers / Optical DOM) as complete
## References
- **ENTITY-MIB (RFC 4133)**: Physical entity enumeration
- **Printer-MIB v2 (RFC 3805)**: Printer supply tracking
- **findings_librenms.md**: Original feature requirements and analysis
- **CLAUDE.md**: Project-specific development guidelines
- **AGENTS.md**: Elixir/Phoenix coding standards
## Author Notes
All features implemented following Test-Driven Development (TDD):
- RED: Write failing test
- GREEN: Implement minimal code to pass
- REFACTOR: Clean up while keeping tests green
All code follows existing patterns from the codebase:
- Ecto schemas with proper associations
- Context API boundary functions
- Background polling with Oban workers
- PubSub events for real-time updates
- Comprehensive error handling
- Proper database indexes

307
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@ -1,307 +0,0 @@
# TowerOps Security Audit
**Date:** 2026-02-15
**Scope:** Full application security review of the TowerOps web application
**Auditor:** Automated security review
---
## Critical Findings
### 1. SNMP Community String Logged in Plaintext
**Severity:** CRITICAL
**File:** `lib/towerops_web/channels/agent_channel.ex`, line ~294
**Issue:** The credential test handler logs the SNMP community string in plaintext:
```elixir
Logger.info(
"AgentChannel sending credential test to agent: ip=#{snmp_config[:ip]} port=#{snmp_config[:port]} version=#{snmp_config[:version]} community=#{snmp_config[:community]} test_id=#{test_id}"
)
```
Community strings are effectively passwords for SNMP access. Logging them means they end up in log aggregation systems, error trackers (Honeybadger), and potentially accessible to anyone with log access.
**Fix:** Remove `community=#{snmp_config[:community]}` from the log message. Log only `community_present: !is_nil(snmp_config[:community])`.
---
### 2. SNMPv3 Passwords Exposed via REST API
**Severity:** CRITICAL
**File:** `lib/towerops_web/controllers/api/v1/devices_controller.ex`, lines 319-321, 342-344
**Issue:** Both `format_device/1` and `format_device_details/1` include `snmpv3_auth_password` and `snmpv3_priv_password` in API responses. These are encrypted at rest (Cloak) but returned as plaintext in the JSON response to any API token holder.
```elixir
snmpv3_auth_password: device.snmpv3_auth_password,
snmpv3_priv_password: device.snmpv3_priv_password,
```
**Fix:** Remove password fields from API responses entirely. If credential status is needed, return boolean flags like `snmpv3_auth_password_set: !is_nil(device.snmpv3_auth_password)`.
---
### 3. SNMP Community String Exposed via GraphQL and REST API
**Severity:** HIGH
**Files:**
- `lib/towerops_web/graphql/types/device.ex`, line 22: `field :snmp_community, :string`
- `lib/towerops_web/controllers/api/v1/devices_controller.ex` (via format_device)
**Issue:** The SNMP community string (which is an authentication credential) is exposed through the GraphQL API and REST API to any authenticated API token holder. While the GraphQL type correctly omits SNMPv3 passwords, it still exposes the community string.
**Fix:** Remove `snmp_community` from the GraphQL `:device` object type. In the REST API, return `snmp_community_set: true/false` instead.
---
### 4. Remember-Me Cookie `same_site` Set to Invalid Value
**Severity:** HIGH
**File:** `lib/towerops_web/user_auth.ex`, line 30
**Issue:** The `same_site` option for the remember-me cookie is set to `"Towerops"` — an invalid value. Valid values are `"Strict"`, `"Lax"`, or `"None"`. An invalid value means the browser will likely use its default behavior (typically `Lax`), but this is browser-dependent and could result in the cookie being sent with cross-site requests in some browsers.
```elixir
@remember_me_options [
sign: true,
max_age: @max_cookie_age_in_days * 24 * 60 * 60,
same_site: "Towerops" # BUG: Invalid value
]
```
**Fix:** Change to `same_site: "Lax"` (matching the session cookie setting on line 12 of endpoint.ex).
---
## High Findings
### 5. No `force_ssl` / HSTS Configuration
**Severity:** HIGH
**File:** `config/runtime.exs` (commented out on lines 252-258), `config/prod.exs` line 33
**Issue:** TLS is handled by Cloudflared proxy, but there's no `force_ssl` with HSTS configured. If the Cloudflared tunnel is misconfigured or bypassed, traffic could flow over HTTP. The `Strict-Transport-Security` header is not set anywhere in the application.
**Fix:** Add `force_ssl: [hsts: true, rewrite_on: [:x-forwarded-proto]]` to the endpoint config in production. This ensures HSTS headers are sent and HTTP requests are redirected even if the proxy configuration changes.
---
### 6. CSP Allows `unsafe-eval` for Scripts
**Severity:** HIGH
**File:** `lib/towerops_web/router.ex`, line 30
**Issue:** The Content-Security-Policy includes `'unsafe-eval'` in the `script-src` directive. While `'unsafe-inline'` is needed for LiveView, `'unsafe-eval'` is not required and significantly weakens XSS protections by allowing `eval()`, `new Function()`, etc.
```
"script-src 'self' 'unsafe-inline' 'unsafe-eval'"
```
**Fix:** Remove `'unsafe-eval'` from the CSP. LiveView does not require `eval()`. If a specific dependency needs it, use a nonce-based CSP instead.
---
### 7. GraphQL Introspection Enabled in Production
**Severity:** HIGH
**File:** `lib/towerops_web/graphql/schema.ex`
**Issue:** Absinthe enables introspection by default. This allows any authenticated API token holder to discover the full schema including all types, fields, mutations, and internal documentation. This aids attackers in understanding the API surface.
**Fix:** Disable introspection in production:
```elixir
def context(ctx) do
if Application.get_env(:towerops, :env) == :prod do
Map.put(ctx, :__absinthe_introspect__, false)
else
ctx
end
end
```
---
### 8. SQL Injection via String Interpolation in LIKE Query
**Severity:** HIGH
**File:** `lib/towerops/snmp.ex`, line 723
**Issue:** The `normalized_name` variable is interpolated directly into a `fragment` LIKE pattern:
```elixir
where: fragment("LOWER(?) LIKE ?", e.name, ^"%#{normalized_name}%"),
```
While `^` parameterizes the outer value, the `%#{normalized_name}%` string interpolation happens in Elixir before being passed to Ecto, so it IS properly parameterized. However, the `%` and `_` LIKE wildcards in `normalized_name` are not escaped, allowing users to craft patterns that match unintended records (LIKE injection).
**Fix:** Sanitize `normalized_name` by escaping `%` and `_` characters (similar to how `Towerops.Search.sanitize/1` does it).
---
### 9. Webhook Signature Verification Bypassed When Secret Not Configured
**Severity:** HIGH
**Files:**
- `lib/towerops_web/controllers/api/v1/gaiia_webhook_controller.ex`, lines 75-78
- `lib/towerops_web/controllers/api/v1/pagerduty_webhook_controller.ex`, lines 50-52
**Issue:** Both Gaiia and PagerDuty webhook controllers skip signature verification when the webhook secret is nil or empty:
```elixir
if is_nil(secret) or secret == "" do
:ok # Accepts any request without verification
```
This means if an integration is created without a webhook secret, anyone can send forged webhook events.
**Fix:** Reject webhooks when no secret is configured, or at minimum log a warning and require explicit opt-in to accept unsigned webhooks.
---
## Medium Findings
### 10. Mobile Session Token Stored as Plaintext in Database
**Severity:** MEDIUM
**File:** `lib/towerops/mobile_sessions/mobile_session.ex`
**Issue:** Mobile session tokens are stored directly in the database without hashing. If the database is compromised, all active mobile sessions can be immediately impersonated. Compare this to the API token system which correctly hashes tokens with SHA-256.
**Fix:** Hash mobile session tokens before storage (like API tokens do) and compare using the hash on lookup.
---
### 11. No Rate Limiting on Admin API Endpoints
**Severity:** MEDIUM
**File:** `lib/towerops_web/router.ex`, admin API scope (lines ~154-162)
**Issue:** The admin API routes (MIB management, GeoIP import) use the `api_v1` pipeline but don't include `rate_limit_api`. While these require superuser API tokens, a compromised superuser token could be used for DoS via unbounded MIB uploads.
**Fix:** Add `:rate_limit_api` to the admin API pipeline.
---
### 12. Session Cookie Missing `encryption_salt`
**Severity:** MEDIUM
**File:** `lib/towerops_web/endpoint.ex`, lines 7-11
**Issue:** The session cookie is signed but not encrypted:
```elixir
@session_options [
store: :cookie,
key: "_towerops_key",
signing_salt: "hrDZxLhd",
same_site: "Lax"
# No encryption_salt
]
```
This means session data (including user tokens, organization IDs, impersonation state) can be read by anyone who intercepts the cookie, even though it can't be tampered with.
**Fix:** Add `encryption_salt` to encrypt session contents:
```elixir
encryption_salt: "some-random-salt"
```
---
### 13. X-Frame-Options Inconsistency
**Severity:** MEDIUM
**Files:**
- `lib/towerops_web/plugs/security_headers.ex`: Sets `x-frame-options: SAMEORIGIN`
- `lib/towerops_web/router.ex` CSP: Sets `frame-ancestors 'none'`
**Issue:** The CSP says "no framing at all" (`frame-ancestors 'none'`) but X-Frame-Options says "same-origin framing is OK" (`SAMEORIGIN`). These are contradictory. When both are present, browsers should prefer `frame-ancestors`, but older browsers may use X-Frame-Options.
**Fix:** Make them consistent. If no framing is intended, use `X-Frame-Options: DENY` and `frame-ancestors 'none'`. If same-origin framing is needed, use `frame-ancestors 'self'`.
---
### 14. Security Headers Only in Production
**Severity:** MEDIUM
**File:** `lib/towerops_web/plugs/security_headers.ex`, line 21
**Issue:** CSP, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy headers are only added in production. Development and staging environments are unprotected, which also means developers can't test CSP compliance during development.
**Fix:** Apply security headers in all environments. Use a less restrictive CSP in development if needed, but don't skip headers entirely.
---
### 15. Agent WebSocket Channel Allows Unauthenticated Connection
**Severity:** MEDIUM
**File:** `lib/towerops_web/channels/agent_socket.ex`, line 12
**Issue:** The socket `connect/3` callback accepts all connections (`{:ok, socket}`). Authentication only happens at channel join time. This means anyone can establish a WebSocket connection and hold it open, consuming server resources.
**Fix:** While channel-level auth is acceptable for Phoenix, consider adding basic validation in `connect/3` (e.g., require a connection param that can be pre-validated) or implement connection-level rate limiting.
---
### 16. GraphQL Query Depth/Complexity Not Limited
**Severity:** MEDIUM
**File:** `lib/towerops_web/graphql/schema.ex`
**Issue:** No query depth or complexity limits are configured. A malicious API user could craft deeply nested or expensive queries to cause DoS.
**Fix:** Add Absinthe complexity analysis:
```elixir
use Absinthe.Schema
@pipeline_modifier Absinthe.Middleware.Complexity
```
---
### 17. Impersonation Lacks CSRF Protection for POST
**Severity:** MEDIUM
**File:** `lib/towerops_web/controllers/admin_controller.ex`
**Issue:** The `start_impersonate` action accepts a POST with `user_id` from path params. While it requires superuser auth and the browser pipeline includes CSRF protection, the `user_id` comes from the URL path (`/admin/impersonate/:user_id`) which means a link-based CSRF attack could trigger impersonation if CSRF token validation is somehow bypassed.
**Fix:** Consider requiring the target user_id in the POST body instead of URL params, and add explicit audit logging (which is already done — this is more of a defense-in-depth note).
---
## Low Findings
### 18. Hardcoded Development Secrets in Source Control
**Severity:** LOW (dev-only, but noted)
**File:** `config/dev.exs`
- `secret_key_base: "ZA80pnF0GDr5..."` (line 111)
- `signing_salt: "hrDZxLhd"` (endpoint.ex line 9)
- Cloak key: `"nQWmgQYhoCNXA3PAxwriKxLyPHAOWH9VgpLkBOXrowM="` (dev.exs)
- Webhook secret: `"dev-webhook-secret"` (dev.exs)
**Impact:** These are dev-only values and production uses environment variables. However, if any of these leaked to production, it would be catastrophic.
**Fix:** Ensure CI/CD validates that production deployments use env vars, not compile-time defaults. Consider using `System.fetch_env!/1` for all secrets.
---
### 19. Rate Limiting Disabled in Development
**Severity:** LOW
**File:** `config/dev.exs`, last lines: `config :towerops, :rate_limiting_enabled, false`
**Issue:** Rate limiting is disabled in dev. If dev instances are accidentally exposed, they have no brute-force protection.
---
### 20. `check_origin: false` in Development
**Severity:** LOW
**File:** `config/dev.exs`
**Issue:** WebSocket origin checking is disabled in development, which is expected but means dev deployments are vulnerable to cross-origin WebSocket hijacking.
---
## Positive Security Controls Noted
The following good security practices were observed:
1. **Password hashing**: Argon2 with proper timing-safe comparison and `no_user_verify` to prevent enumeration
2. **TOTP 2FA**: Mandatory for all users, with recovery codes
3. **Session management**: Token rotation, browser session tracking, session cleanup workers
4. **Sudo mode**: Sensitive operations require re-authentication within 10 minutes
5. **Brute force protection**: Multi-tier IP banning with escalation to Cloudflare WAF
6. **Rate limiting**: Separate limits for auth (10/min) and API (1000/min) endpoints
7. **CSRF protection**: Phoenix's built-in `protect_from_forgery` in browser pipeline
8. **Input sanitization**: Search module properly escapes LIKE wildcards
9. **Encrypted credentials**: SNMPv3 and MikroTik passwords use Cloak (AES-256-GCM) at rest
10. **Webhook HMAC validation**: Gaiia and PagerDuty webhooks use constant-time comparison
11. **API tokens**: Hashed with SHA-256 before storage, prefixed for identification
12. **Audit logging**: Impersonation, login attempts tracked with IP/user-agent
13. **Organization scoping**: All data access is scoped to organization_id
14. **Agent channel authorization**: Token-based auth at join, organization verification on all results
15. **Ecto parameterized queries**: All database queries use parameterized Ecto queries (no raw SQL injection)
16. **Path traversal protection**: MIB upload validates vendor names and filenames
17. **Cookie consent**: GDPR-compliant EU user detection and consent tracking
18. **Login attempt tracking**: Failed and successful logins recorded for security monitoring
19. **Protobuf validation**: Agent channel validates all incoming protobuf messages before processing
20. **User enumeration prevention**: Login errors don't reveal whether email exists
---
## Summary
| Severity | Count |
|----------|-------|
| Critical | 3 |
| High | 6 |
| Medium | 8 |
| Low | 3 |
**Priority fixes:**
1. Remove SNMP community string from logs (Critical #1)
2. Remove SNMPv3 passwords from API responses (Critical #2)
3. Remove SNMP community from GraphQL/REST (High #3)
4. Fix remember-me cookie `same_site` value (High #4)
5. Add HSTS headers (High #5)
6. Remove `unsafe-eval` from CSP (High #6)

41
findings.md
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@ -14,12 +14,13 @@
- ✅ All Critical security vulnerabilities fixed (PagerDuty webhook auth, Stripe DoS)
- ✅ All Urgent SNMP crash bugs fixed (malformed OID indices, binary UUID serialization)
- ✅ All bang operations in loops replaced with safe error handling
- ✅ All Repo queries moved from LiveViews to context modules (AGENTS.md compliance)
- ✅ Large dataset loading converted to use Repo.stream for memory efficiency
- ✅ Repo.all eliminated from LiveViews (13 Repo.preload instances remain)
- ✅ Large dataset loading converted to use Repo.stream for memory efficiency (3/4 workers fixed)
- ✅ Disabled event_logger tests fixed and re-enabled (4 tests now passing)
- ✅ N+1 queries verified already optimized
- ✅ Database transactions verified atomic
- ✅ CSRF protection verified (token-based auth, not applicable)
- ✅ All JS hooks have phx-update="ignore" (22 instances across 12 files)
| Category | Critical | High | Medium | Low | Total |
|----------|----------|------|--------|-----|-------|
@ -284,10 +285,12 @@
**Fixed**: 2026-03-26 - Added phx-update="ignore" to all 11 hooks that were missing it (6 were already fixed)
### 3.2 Repo Queries in LiveViews (High Priority - 9 instances)
### 3.2 Repo Queries in LiveViews (Medium Priority - 13 instances remaining)
**Violates AGENTS.md architecture - queries should be in context modules**
**Status**: Partially addressed - Repo.all eliminated (0 instances), Repo.preload remains (10 instances), Repo.get!/get_by! remains (3 instances)
15. **device_live/form.ex:160** - Unnecessary `force: true` in Repo.preload
```elixir
Repo.preload(device, [:interfaces], force: true)
@ -298,12 +301,12 @@
17. **device_live/form.ex:109** - Direct Repo.preload in LiveView
18. **device_live/show.ex:647** - Direct Repo.all in LiveView
18. **device_live/show.ex:647** - ✅ **FIXED** Removed direct Repo.all from LiveView
19. **admin/audit_live/index.ex:333, 338** - Direct Repo.all (2 instances)
19. **admin/audit_live/index.ex:333, 338** - ✅ **FIXED** Removed direct Repo.all from LiveView
20. **config_timeline_live.ex** - Multiple Repo.all calls (4 instances)
- Lines 254, 269, 286, 297
20. **config_timeline_live.ex** - ✅ **FIXED** Removed all direct Repo.all calls from LiveView
- No longer using Repo.all in LiveView (was lines 254, 269, 286, 297)
---
@ -367,11 +370,11 @@
# Should use Repo.stream/1 for large datasets
```
7. **system_insight_worker.ex:23** - Large Repo.all without limits
7. **system_insight_worker.ex:23** - ✅ **FIXED** Now uses Repo.stream for memory efficiency
8. **capacity_insight_worker.ex:33** - Large Repo.all without limits
8. **capacity_insight_worker.ex:33** - ✅ **FIXED** Now uses Repo.stream for memory efficiency
9. **wireless_insight_worker.ex:40** - Large Repo.all without limits
9. **wireless_insight_worker.ex:40** - ✅ **FIXED** Now uses Repo.stream for memory efficiency
### 4.6 Unsafe Fragment Queries (Medium Priority)
@ -416,9 +419,9 @@
2. **c_nif_integration_test.exs** - 4 NIF integration tests skipped
- Line 12: `@moduletag :skip`
3. **equipment/event_logger_test.exs** - All event logging tests skipped
- Line 8: `@moduletag :skip`
- No reason given
3. **equipment/event_logger_test.exs** - ✅ **FIXED** All event logging tests re-enabled and passing
- Removed `@moduletag :skip`
- 4 tests now passing
4. **four_oh_four_tracker_test.exs** - 6 security tests skipped
- Lines 6-7: `@moduletag :skip`
@ -652,12 +655,12 @@ assert_receive {:DOWN, ^ref, :process, ^pid, :normal}
4. ✅ Race conditions - Verified benign (mobile sessions atomic, no use-after-revoke)
5. ✅ Missing CSRF protection - Verified not applicable (token-based auth)
### Medium Priority (Fix within 1 month)
1. Repo queries in LiveViews (move to contexts)
2. Large dataset loading without streaming
3. Disabled/flaky tests
4. Unsafe fragment queries
5. Missing database indexes
### Medium Priority (Fix within 1 month) - **PARTIALLY COMPLETE**
1. Repo queries in LiveViews (move to contexts) - **PARTIALLY DONE** (Repo.all eliminated, Repo.preload remains)
2. ✅ Large dataset loading without streaming - **COMPLETE** (3 insight workers now use Repo.stream, only organizations.ex:27 remains)
3. Disabled/flaky tests - **PARTIALLY DONE** (event_logger tests re-enabled, many others remain)
4. Unsafe fragment queries - **NOT STARTED**
5. Missing database indexes - **NOT STARTED**
### Low Priority (Fix when convenient)
1. TODO comments

187
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@ -1165,73 +1165,200 @@ Acceptance criteria met:
**Future enhancement:** Add vendor-specific discovery for Cisco CISCO-MEMORY-POOL-MIB and UCD-SNMP-MIB for devices that don't fully support HOST-RESOURCES-MIB.
### C2. Add transceivers / optical DOM
### C2. Add transceivers / optical DOM ✅ DONE (2026-03-26) - Backend Complete
**Status: Backend complete. Discovery, sync, schema, and DOM polling all implemented. UI pending.**
Why it matters:
- optics are a major operational surface and a key LibreNMS strength
- this is especially important for wireless backhaul and transport networks
What to build:
What was built:
- transceiver entity schema
- DOM sensor association model
- discovery from entity physical and vendor-specific optics tables
- optical metrics such as Rx power, Tx power, bias current, temperature, voltage
- ✅ Transceiver schema with support for 12 transceiver types (SFP, SFP+, QSFP, QSFP28, QSFP+, XFP, CFP, CFP2, CFP4, GBIC, other, unknown)
- ✅ Fields: port_index, transceiver_type, vendor_name, vendor_part_number, vendor_serial_number, vendor_revision, wavelength_nm, connector_type, nominal_bitrate_mbps, supports_dom
- ✅ TransceiverReading schema for DOM (Digital Optical Monitoring) metrics
- ✅ DOM fields: rx_power_dbm, tx_power_dbm, bias_current_ma, temperature_celsius, voltage_v, measured_at
- ✅ Database migrations with proper indexes (snmp_device_id + port_index unique, transceiver_id + measured_at)
- ✅ Cascade delete on device removal, readings cascade delete on transceiver removal
- ✅ Optional link to entity_physical (nilify on delete)
- ✅ Context API functions:
- list_transceivers/1 - list all transceivers for device
- get_transceiver/1 - get single transceiver
- get_transceivers_by_type/2 - filter by transceiver type (SFP, QSFP, etc.)
- list_transceivers_with_dom/1 - only DOM-capable transceivers
- get_transceiver_with_latest_reading/1 - join with latest DOM reading
- update_transceiver/2 - update transceiver
- ✅ Discovery integration (Base.discover_transceivers/1)
- Walks ENTITY-MIB entPhysicalTable for port/module entities
- Filters by transceiver keywords (SFP, QSFP, XFP, GBIC, CFP, TRANSCEIVER, OPTIC)
- Detects transceiver type from description (most specific first: QSFP28 > QSFP+ > QSFP, SFP+ > SFP)
- Extracts vendor name, part number, serial number from ENTITY-MIB
- Sets supports_dom=true for all discovered transceivers
- ✅ Discovery sync function (Discovery.sync_transceivers/2)
- Creates, updates, or deletes transceiver entries to match discovered state
- Preserves transceiver IDs and associated DOM readings on update
- ✅ Discovery flow integration with timeout protection
- ✅ 31 tests covering schema, discovery, sync, context API, polling (all passing)
- 7 tests for Base.discover_transceivers/1 (type detection, filtering, edge cases)
- 6 tests for Discovery.sync_transceivers/2 (create, update, delete, isolation)
- 13 tests for context API functions
- 5 tests for DevicePollerWorker.poll_transceivers/3 (DOM polling, partial data, errors)
**DOM Polling:**
- ✅ Poll DOM metrics periodically and store in TransceiverReading (poll_transceivers/3, poll_device_transceivers/4)
- ✅ Batch insert function for efficient readings storage (create_transceiver_readings_batch/1)
- ✅ Integration with DevicePollerWorker main polling flow
- ✅ 5 comprehensive tests covering DOM polling scenarios
- ✅ Concurrent polling using Task.async_stream (max 2 concurrent)
- ✅ Graceful handling of partial data and SNMP errors
- ⏳ Vendor-specific MIB support for DOM metrics (currently uses simulated vendor OIDs)
- ⏳ Vendor profiles for optical transceivers (MikroTik, Cisco, Juniper, etc.)
- ⏳ Optical power thresholds and alerts
**UI Components Needed:**
1. **Transceivers Tab** (device_live/show.ex)
- New "Transceivers" tab alongside Interfaces, Sensors, etc.
- Table view of transceivers with type, vendor, model, serial
- DOM metrics display (Rx/Tx power, temperature, voltage, bias current)
- Color-coded power levels (green/yellow/red based on thresholds)
- Link to parent entity_physical when available
2. **Transceiver Detail View**
- Full transceiver details (all fields)
- DOM metrics history chart (time-series)
- Alert threshold configuration
Dependencies:
- C4 strongly helps
- C4 (Entity Physical) ✅ helps but not required
Minimum acceptance criteria:
- transceivers can be discovered as distinct entities
- optical readings are tied to a transceiver or interface
- at least one vendor-specific path works beyond generic ENTITY-MIB
- ✅ transceivers can be discovered as distinct entities
- ✅ optical readings are tied to a transceiver (via TransceiverReading)
- ⏳ at least one vendor-specific path works beyond generic ENTITY-MIB (pending DOM polling)
### C3. Add printer supplies
### C3. Add printer supplies ✅ DONE (2026-03-26) - Backend Complete
**Status: Backend complete. Discovery, sync, context API, and discovery flow integration all implemented. UI pending.**
Why it matters:
- this is a common LibreNMS feature and a good test of non-network device coverage
- enables tracking of consumables (toner, ink, drums, etc.) for printers and multi-function devices
What to build:
What was built:
- supply entity model
- toner/drum/etc levels
- thresholds and depletion state
- ✅ PrinterSupply schema with automatic percent calculation (supply_percent virtual field)
- ✅ Database migration with proper indexes (snmp_device_id + supply_index unique)
- ✅ Support for 15 supply types (toner, ink, drum, fuser, developer, etc.) from RFC 3805
- ✅ Support for 17 capacity unit types (percent, impressions, grams, milliliters, etc.)
- ✅ Fields: supply_index, supply_type, supply_description, supply_unit, max_capacity, current_level, color_name, part_number
- ✅ Discovery from Printer-MIB RFC 3805 (prtMarkerSuppliesTable)
- ✅ Discovery sync function (sync_printer_supplies/2)
- ✅ Context API functions:
- list_printer_supplies/1 - list all supplies for device
- get_printer_supply/1 - get single supply by ID
- get_printer_supplies_by_type/2 - filter by type
- get_low_printer_supplies/2 - find supplies below threshold %
- update_printer_supply/2 - update supply attributes
- ✅ Discovery flow integration with timeout protection
- ✅ 31 tests covering schema, discovery, sync, context API (all passing)
- 9 tests for PrinterSupply schema
- 5 tests for Base.discover_printer_supplies/1
- 6 tests for Discovery.sync_printer_supplies/2
- 11 tests for context API functions
Dependencies:
**UI Components Needed:**
- F4 preferred
1. **Printer Supplies Tab** (device_live/show.ex)
- New "Supplies" tab for printer/MFD devices
- Table view of supplies with type, description, capacity, level
- Color-coded level indicators (green/yellow/red based on percentage)
- Sort by supply type, level, or index
2. **Supply Detail View**
- Full supply details (all fields)
- Historical level tracking (if readings implemented)
- Low supply alerts configuration
Minimum acceptance criteria:
- standard printer supply MIB path supported
- current levels and warning states stored
- ✅ standard printer supply MIB path supported (RFC 3805 Printer-MIB)
- ✅ current levels and warning states stored (percent calculation, low supply filtering)
### C4. Add entity physical / inventory model
### C4. Add entity physical / inventory model ✅ DONE (2026-03-26) - Backend Complete, UI Pending
**Status: Backend complete. All core functionality implemented and tested. UI components needed.**
Why it matters:
- this becomes the backbone for FRUs, transceivers, power supplies, fans, slot inventory, and richer topology
What to build:
What was built:
- physical entity schema
- parent/child relationships
- class/type/name/serial/model/manufacturer where available
- association to discovered sensors and transceivers
- ✅ EntityPhysical schema with parent/child self-referencing relationships
- ✅ Database migration with proper indexes (snmp_device_id, entity_index unique, parent_id)
- ✅ Support for 11 ENTITY-MIB PhysicalClass values (chassis, module, port, powerSupply, fan, sensor, etc.)
- ✅ Fields: entity_index, parent_index, class, type, name, description, serial, model, manufacturer, hardware/firmware/software revisions
- ✅ Discovery sync function (sync_entity_physical/2) with parent relationship resolution
- ✅ Context API functions:
- list_entity_physical/1 - list all entities for device
- get_entity_physical/1 - get single entity
- get_entity_physical_by_class/2 - filter by class
- get_entity_physical_tree/1 - hierarchical tree structure
- update_entity_physical/2 - update entity
- ✅ 26 tests covering schema, discovery sync, context API (all passing)
- ✅ Test fixtures in snmp_fixtures.ex
- ✅ ENTITY-MIB discovery integration (Base.discover_entity_physical/1)
- ✅ Discovery flow integration with timeout protection
- ✅ 29 total tests for entity physical (all passing)
Dependencies:
**UI Components Needed:**
- none, but should happen early
1. **Device Hardware Inventory Tab** (device_live/show.ex)
- New "Hardware" tab alongside Interfaces, Sensors, etc.
- Display hierarchical tree view of physical components
- Show: chassis → modules → ports/transceivers → sub-components
- Fields to display: entity_class, name, description, serial_number, model, manufacturer, hardware/firmware/software revisions
- Tree component with expand/collapse for nested components
- Icons for different entity classes (chassis, module, port, powerSupply, fan, sensor)
2. **Hardware Inventory List View** (optional)
- Flat table view for quick scanning
- Filters by entity_class (show only power supplies, fans, etc.)
- Search by serial number, model, manufacturer
- Export to CSV for inventory tracking
3. **Integration with Sensors/Transceivers** (future)
- Link sensors to their physical entity (parent module/port)
- Show transceiver details within port entity
- Display sensor readings alongside physical component
**Discovery Integration:**
- ✅ ENTITY-MIB discovery (RFC 4133) - walks entPhysicalTable in Base.discover_entity_physical/1
- ✅ Calls sync_entity_physical/2 from main discovery flow with timeout protection
- ✅ Device schema association (has_many :entity_physical)
**Polling:**
- ⏳ Optional: EntityPhysicalReading schema for operational state tracking
- ⏳ Most hardware inventory is static (serial, model, etc.) - polling may not be needed
- ⏳ If needed: poll entPhysicalOperStatus, entPhysicalAlarmStatus for component health
Minimum acceptance criteria:
- ENTITY-MIB hardware inventory is discoverable and queryable
- parent-child relationships are preserved
- sensors can reference physical entities when possible
- ✅ ENTITY-MIB hardware inventory schema created
- ✅ parent-child relationships preserved in schema
- ✅ Hardware inventory is queryable (context API complete)
- ✅ Discovery integration (ENTITY-MIB entPhysicalTable walk complete)
- ⏳ UI components for hardware inventory display (next step)
- ⏳ sensors can reference physical entities when possible (future enhancement)
### C5. Add route table discovery

264
lib/towerops/snmp.ex
View file

@ -13,6 +13,8 @@ defmodule Towerops.Snmp do
alias Towerops.Snmp.Client
alias Towerops.Snmp.Device
alias Towerops.Snmp.Discovery
alias Towerops.Snmp.EntityPhysical
alias Towerops.Snmp.EntityPhysicalReading
alias Towerops.Snmp.Interface
alias Towerops.Snmp.InterfaceStat
alias Towerops.Snmp.IpAddress
@ -20,6 +22,7 @@ defmodule Towerops.Snmp do
alias Towerops.Snmp.Mempool
alias Towerops.Snmp.MempoolReading
alias Towerops.Snmp.Neighbor
alias Towerops.Snmp.PrinterSupply
alias Towerops.Snmp.Processor
alias Towerops.Snmp.ProcessorReading
alias Towerops.Snmp.Sensor
@ -27,6 +30,8 @@ defmodule Towerops.Snmp do
alias Towerops.Snmp.StateSensor
alias Towerops.Snmp.Storage
alias Towerops.Snmp.StorageReading
alias Towerops.Snmp.Transceiver
alias Towerops.Snmp.TransceiverReading
alias Towerops.Snmp.Vlan
alias Towerops.Snmp.WirelessClient
alias Towerops.Snmp.WirelessClientReading
@ -1815,6 +1820,265 @@ defmodule Towerops.Snmp do
|> Repo.all()
end
@doc """
Lists all entity physical components for a given SNMP device.
"""
def list_entity_physical(snmp_device_id) do
EntityPhysical
|> where([e], e.snmp_device_id == ^snmp_device_id)
|> order_by([e], e.entity_index)
|> Repo.all()
end
@doc """
Gets a single entity physical component by id.
"""
def get_entity_physical(id) do
case Repo.get(EntityPhysical, id) do
nil -> {:error, :not_found}
entity -> {:ok, entity}
end
end
@doc """
Gets entity physical components by class (chassis, module, port, etc.).
"""
def get_entity_physical_by_class(snmp_device_id, entity_class) do
EntityPhysical
|> where([e], e.snmp_device_id == ^snmp_device_id and e.entity_class == ^entity_class)
|> order_by([e], e.entity_index)
|> Repo.all()
end
@doc """
Gets entity physical components as a hierarchical tree.
Returns root entities with children preloaded recursively.
"""
def get_entity_physical_tree(snmp_device_id) do
# Get all entities for this device
all_entities =
EntityPhysical
|> where([e], e.snmp_device_id == ^snmp_device_id)
|> order_by([e], e.entity_index)
|> Repo.all()
# Build the tree structure
build_entity_tree(all_entities)
end
# Build hierarchical tree from flat list of entities
defp build_entity_tree(entities) do
# Group entities by parent_id
children_by_parent = Enum.group_by(entities, & &1.parent_id)
# Find root entities (parent_id is nil)
root_entities = Map.get(children_by_parent, nil, [])
# Recursively attach children to each entity
Enum.map(root_entities, &attach_children(&1, children_by_parent))
end
defp attach_children(entity, children_by_parent) do
children =
children_by_parent
|> Map.get(entity.id, [])
|> Enum.map(&attach_children(&1, children_by_parent))
Map.put(entity, :children, children)
end
@doc """
Updates an entity physical component with the given attributes.
"""
def update_entity_physical(entity, attrs) do
entity
|> EntityPhysical.changeset(attrs)
|> Repo.update()
end
# Transceiver queries
@doc """
Lists all transceivers for a device.
"""
def list_transceivers(snmp_device_id) do
Transceiver
|> where([t], t.snmp_device_id == ^snmp_device_id)
|> order_by([t], t.port_index)
|> Repo.all()
end
@doc """
Gets a single transceiver by id.
"""
def get_transceiver(id) do
case Repo.get(Transceiver, id) do
nil -> {:error, :not_found}
transceiver -> {:ok, transceiver}
end
end
@doc """
Gets transceivers by type (SFP, SFP+, QSFP, etc.).
"""
def get_transceivers_by_type(snmp_device_id, transceiver_type) do
Transceiver
|> where([t], t.snmp_device_id == ^snmp_device_id and t.transceiver_type == ^transceiver_type)
|> order_by([t], t.port_index)
|> Repo.all()
end
@doc """
Lists transceivers with DOM (Digital Optical Monitoring) support.
"""
def list_transceivers_with_dom(snmp_device_id) do
Transceiver
|> where([t], t.snmp_device_id == ^snmp_device_id and t.supports_dom == true)
|> order_by([t], t.port_index)
|> Repo.all()
end
@doc """
Gets a transceiver with its latest DOM reading.
Returns the transceiver with a `:latest_reading` field containing the most recent
TransceiverReading, or nil if no readings exist.
"""
def get_transceiver_with_latest_reading(id) do
case Repo.get(Transceiver, id) do
nil ->
{:error, :not_found}
transceiver ->
latest_reading =
TransceiverReading
|> where([r], r.transceiver_id == ^id)
|> order_by([r], desc: r.measured_at)
|> limit(1)
|> Repo.one()
{:ok, Map.put(transceiver, :latest_reading, latest_reading)}
end
end
@doc """
Updates a transceiver with the given attributes.
"""
def update_transceiver(transceiver, attrs) do
transceiver
|> Transceiver.changeset(attrs)
|> Repo.update()
end
## Printer Supplies
@doc """
Lists all printer supplies for a device.
"""
def list_printer_supplies(snmp_device_id) do
PrinterSupply
|> where([s], s.snmp_device_id == ^snmp_device_id)
|> order_by([s], s.supply_index)
|> Repo.all()
end
@doc """
Gets a single printer supply by id.
Returns nil if not found.
"""
def get_printer_supply(id) do
Repo.get(PrinterSupply, id)
end
@doc """
Gets printer supplies by type (toner, ink, drum, etc.).
"""
def get_printer_supplies_by_type(snmp_device_id, supply_type) do
PrinterSupply
|> where([s], s.snmp_device_id == ^snmp_device_id and s.supply_type == ^supply_type)
|> order_by([s], s.supply_index)
|> Repo.all()
end
@doc """
Gets printer supplies below a threshold percentage.
Returns supplies where (current_level / max_capacity * 100) < threshold.
Excludes supplies without capacity data.
"""
def get_low_printer_supplies(snmp_device_id, threshold_percent) do
PrinterSupply
|> where([s], s.snmp_device_id == ^snmp_device_id)
|> where([s], not is_nil(s.max_capacity) and not is_nil(s.current_level))
|> where([s], s.max_capacity > 0)
|> Repo.all()
|> Enum.filter(fn supply ->
percent = supply.current_level * 100 / supply.max_capacity
percent < threshold_percent
end)
end
@doc """
Updates a printer supply with the given attributes.
"""
def update_printer_supply(printer_supply, attrs) do
printer_supply
|> PrinterSupply.changeset(attrs)
|> Repo.update()
end
@doc """
Creates multiple transceiver DOM readings in a single batch insert.
## Parameters
- entries: List of maps with keys: transceiver_id, rx_power_dbm, tx_power_dbm,
bias_current_ma, temperature_celsius, voltage_v, measured_at
## Returns
- {count, nil} where count is the number of inserted readings
"""
def create_transceiver_readings_batch([]), do: {0, nil}
def create_transceiver_readings_batch(entries) when is_list(entries) do
now = DateTime.truncate(DateTime.utc_now(), :second)
rows =
Enum.map(entries, fn entry ->
entry
|> Map.put(:id, Ecto.UUID.generate())
|> Map.put(:inserted_at, now)
|> Map.put(:updated_at, now)
end)
Repo.insert_all(TransceiverReading, rows)
end
@doc """
Batch inserts entity physical status readings.
## Parameters
- entries: List of maps with entity_physical_id, operational_status, admin_status, measured_at
## Returns
- {count, nil} where count is number of rows inserted
"""
def create_entity_physical_readings_batch([]), do: {0, nil}
def create_entity_physical_readings_batch(entries) when is_list(entries) do
now = DateTime.truncate(DateTime.utc_now(), :second)
rows =
Enum.map(entries, fn entry ->
entry
|> Map.put(:id, Ecto.UUID.generate())
|> Map.put(:inserted_at, now)
|> Map.put(:updated_at, now)
end)
Repo.insert_all(EntityPhysicalReading, rows)
end
@doc """
Updates a mempool with the given attributes.
"""

7
lib/towerops/snmp/device.ex
View file

@ -11,12 +11,14 @@ defmodule Towerops.Snmp.Device do
alias Ecto.Association.NotLoaded
alias Towerops.Devices.Device, as: DeviceSchema
alias Towerops.Snmp.EntityPhysical
alias Towerops.Snmp.Interface
alias Towerops.Snmp.Mempool
alias Towerops.Snmp.Processor
alias Towerops.Snmp.Sensor
alias Towerops.Snmp.StateSensor
alias Towerops.Snmp.Storage
alias Towerops.Snmp.Transceiver
@primary_key {:id, :binary_id, autogenerate: true}
@foreign_key_type :binary_id
@ -42,6 +44,8 @@ defmodule Towerops.Snmp.Device do
has_many :state_sensors, StateSensor, foreign_key: :snmp_device_id
has_many :storage, Storage, foreign_key: :snmp_device_id
has_many :mempools, Mempool, foreign_key: :snmp_device_id
has_many :entity_physical, EntityPhysical, foreign_key: :snmp_device_id
has_many :transceivers, Transceiver, foreign_key: :snmp_device_id
timestamps(type: :utc_datetime)
end
@ -67,6 +71,9 @@ defmodule Towerops.Snmp.Device do
sensors: NotLoaded.t() | [Sensor.t()],
state_sensors: NotLoaded.t() | [StateSensor.t()],
storage: NotLoaded.t() | [Storage.t()],
mempools: NotLoaded.t() | [Mempool.t()],
entity_physical: NotLoaded.t() | [EntityPhysical.t()],
transceivers: NotLoaded.t() | [Transceiver.t()],
inserted_at: DateTime.t(),
updated_at: DateTime.t()
}

256
lib/towerops/snmp/discovery.ex
View file

@ -24,6 +24,7 @@ defmodule Towerops.Snmp.Discovery do
alias Towerops.Snmp.Client
alias Towerops.Snmp.DeferredDiscovery
alias Towerops.Snmp.Device
alias Towerops.Snmp.EntityPhysical
alias Towerops.Snmp.Interface
alias Towerops.Snmp.IpAddress
alias Towerops.Snmp.NeighborDiscovery
@ -225,6 +226,15 @@ defmodule Towerops.Snmp.Discovery do
Logger.info("Discovering memory pools...", device_id: device.id)
{:ok, mempools} = discover_mempools_with_timeout(client_opts, timeouts)
Logger.info("Discovering entity physical inventory...", device_id: device.id)
{:ok, entity_physical} = discover_entity_physical_with_timeout(client_opts, timeouts)
Logger.info("Discovering transceivers...", device_id: device.id)
{:ok, transceivers} = discover_transceivers_with_timeout(client_opts, timeouts)
Logger.info("Discovering printer supplies...", device_id: device.id)
{:ok, printer_supplies} = discover_printer_supplies_with_timeout(client_opts, timeouts)
Logger.info("Saving discovery results (including IP addresses and processors)...", device_id: device.id)
case save_discovery_results(device, device_info, interfaces, sensors, vlans, ip_addresses, processors) do
@ -236,6 +246,15 @@ defmodule Towerops.Snmp.Discovery do
Logger.info("Syncing memory pools...", device_id: device.id)
_ = sync_mempools(discovered_device, mempools)
Logger.info("Syncing entity physical inventory...", device_id: device.id)
_ = sync_entity_physical(discovered_device, entity_physical)
Logger.info("Syncing transceivers...", device_id: device.id)
_ = sync_transceivers(discovered_device, transceivers)
Logger.info("Syncing printer supplies...", device_id: device.id)
_ = sync_printer_supplies(discovered_device, printer_supplies)
Logger.info("Discovering neighbors...", device_id: device.id)
{:ok, neighbors} = discover_neighbors_with_timeout(client_opts, discovered_device.interfaces, timeouts)
@ -407,6 +426,33 @@ defmodule Towerops.Snmp.Discovery do
)
end
defp discover_entity_physical_with_timeout(client_opts, timeouts) do
DeferredDiscovery.slow_check(
client_opts,
fn -> Base.discover_entity_physical(client_opts) end,
timeout: timeouts[:slow],
default: []
)
end
defp discover_transceivers_with_timeout(client_opts, timeouts) do
DeferredDiscovery.slow_check(
client_opts,
fn -> Base.discover_transceivers(client_opts) end,
timeout: timeouts[:slow],
default: []
)
end
defp discover_printer_supplies_with_timeout(client_opts, timeouts) do
DeferredDiscovery.slow_check(
client_opts,
fn -> Base.discover_printer_supplies(client_opts) end,
timeout: timeouts[:slow],
default: []
)
end
@doc """
Enqueues Oban discovery jobs for all SNMP-enabled devices in an organization.
@ -1383,6 +1429,216 @@ defmodule Towerops.Snmp.Discovery do
Float.round(used / total * 100.0, 2)
end
@doc """
Synchronize transceivers from discovery data.
Creates, updates, or deletes transceiver entries to match discovered state.
"""
def sync_transceivers(snmp_device, discovered_transceivers) do
alias Towerops.Snmp.Transceiver
# Get existing transceivers for this device, indexed by port_index
existing_transceivers =
from(t in Transceiver, where: t.snmp_device_id == ^snmp_device.id)
|> Repo.all()
|> Map.new(&{&1.port_index, &1})
# Get the set of discovered port_indices
discovered_indices = MapSet.new(discovered_transceivers, & &1.port_index)
# Delete transceivers that no longer exist on the device
existing_indices = MapSet.new(Map.keys(existing_transceivers))
removed_indices = MapSet.difference(existing_indices, discovered_indices)
if MapSet.size(removed_indices) > 0 do
removed_list = MapSet.to_list(removed_indices)
Repo.delete_all(
from t in Transceiver,
where: t.snmp_device_id == ^snmp_device.id and t.port_index in ^removed_list
)
Logger.debug("Deleted #{MapSet.size(removed_indices)} removed transceivers")
end
# Upsert each discovered transceiver
synced =
Enum.map(discovered_transceivers, fn transceiver_data ->
transceiver_attrs = Map.put(transceiver_data, :snmp_device_id, snmp_device.id)
case Map.get(existing_transceivers, transceiver_data.port_index) do
nil ->
# New transceiver - insert
%Transceiver{}
|> Transceiver.changeset(transceiver_attrs)
|> Repo.insert!()
existing ->
# Existing transceiver - update
existing
|> Transceiver.changeset(transceiver_data)
|> Repo.update!()
end
end)
Logger.debug("Synced #{length(discovered_transceivers)} transceivers for device")
{:ok, synced}
end
@doc """
Syncs discovered printer supplies with the database.
- Creates new supplies that don't exist
- Updates existing supplies with new data
- Deletes supplies that are no longer discovered
"""
def sync_printer_supplies(snmp_device, discovered_supplies) do
alias Towerops.Snmp.PrinterSupply
# Get existing supplies for this device, indexed by supply_index
existing_supplies =
from(s in PrinterSupply, where: s.snmp_device_id == ^snmp_device.id)
|> Repo.all()
|> Map.new(&{&1.supply_index, &1})
# Get the set of discovered supply_indices
discovered_indices = MapSet.new(discovered_supplies, & &1.supply_index)
# Delete supplies that no longer exist on the device
existing_indices = MapSet.new(Map.keys(existing_supplies))
removed_indices = MapSet.difference(existing_indices, discovered_indices)
if MapSet.size(removed_indices) > 0 do
removed_list = MapSet.to_list(removed_indices)
Repo.delete_all(
from s in PrinterSupply,
where: s.snmp_device_id == ^snmp_device.id and s.supply_index in ^removed_list
)
Logger.debug("Deleted #{MapSet.size(removed_indices)} removed printer supplies")
end
# Upsert each discovered supply
Enum.each(discovered_supplies, fn supply_data ->
supply_attrs = Map.put(supply_data, :snmp_device_id, snmp_device.id)
case Map.get(existing_supplies, supply_data.supply_index) do
nil ->
# New supply - insert
%PrinterSupply{}
|> PrinterSupply.changeset(supply_attrs)
|> Repo.insert!()
existing ->
# Existing supply - update
existing
|> PrinterSupply.changeset(supply_data)
|> Repo.update!()
end
end)
Logger.debug("Synced #{length(discovered_supplies)} printer supplies for device")
:ok
end
@doc """
Synchronize entity physical inventory from discovery data.
Creates, updates, or deletes entity physical entries to match discovered state.
Resolves parent relationships after all entities are created.
"""
def sync_entity_physical(snmp_device, discovered_entities) do
# Get existing entities for this device, indexed by entity_index
existing_entities =
from(e in EntityPhysical, where: e.snmp_device_id == ^snmp_device.id)
|> Repo.all()
|> Map.new(&{&1.entity_index, &1})
# Get the set of discovered entity_indices
discovered_indices = MapSet.new(discovered_entities, & &1.entity_index)
# Delete entities that no longer exist on the device
existing_indices = MapSet.new(Map.keys(existing_entities))
removed_indices = MapSet.difference(existing_indices, discovered_indices)
if MapSet.size(removed_indices) > 0 do
removed_list = MapSet.to_list(removed_indices)
Repo.delete_all(
from e in EntityPhysical,
where: e.snmp_device_id == ^snmp_device.id and e.entity_index in ^removed_list
)
Logger.debug("Deleted #{MapSet.size(removed_indices)} removed entity physical components")
end
# Upsert each discovered entity (without parent_id - we'll resolve that after)
synced =
Enum.map(discovered_entities, fn entity_data ->
entity_attrs = %{
snmp_device_id: snmp_device.id,
entity_index: entity_data.entity_index,
parent_index: entity_data[:parent_index],
entity_class: entity_data[:entity_class],
entity_type: entity_data[:entity_type],
name: entity_data[:name],
description: entity_data[:description],
serial_number: entity_data[:serial_number],
model: entity_data[:model],
manufacturer: entity_data[:manufacturer],
hardware_revision: entity_data[:hardware_revision],
firmware_revision: entity_data[:firmware_revision],
software_revision: entity_data[:software_revision],
physical_index: entity_data[:physical_index]
}
case Map.get(existing_entities, entity_data.entity_index) do
nil ->
# New entity - insert
%EntityPhysical{}
|> EntityPhysical.changeset(entity_attrs)
|> Repo.insert!()
existing ->
# Existing entity - update
existing
|> EntityPhysical.changeset(entity_attrs)
|> Repo.update!()
end
end)
# Now resolve parent_id relationships
resolve_entity_parent_relationships(snmp_device.id)
Logger.debug("Synced #{length(discovered_entities)} entity physical components for device")
{:ok, synced}
end
# Resolve parent_id from parent_index for all entities on a device
defp resolve_entity_parent_relationships(snmp_device_id) do
# Get all entities for this device
entities = Repo.all(from(e in EntityPhysical, where: e.snmp_device_id == ^snmp_device_id))
# Build index map: entity_index -> id
index_to_id = Map.new(entities, &{&1.entity_index, &1.id})
# Update each entity's parent_id based on parent_index
Enum.each(entities, fn entity ->
parent_id =
if entity.parent_index && entity.parent_index != "0" do
Map.get(index_to_id, entity.parent_index)
end
# Only update if parent_id changed
if entity.parent_id != parent_id do
entity
|> Ecto.Changeset.change(parent_id: parent_id)
|> Repo.update!()
end
end)
end
@spec update_device_discovery_time(DeviceSchema.t()) ::
{:ok, DeviceSchema.t()} | {:error, Ecto.Changeset.t()}
defp update_device_discovery_time(device) do

107
lib/towerops/snmp/entity_physical.ex Normal file
View file

@ -0,0 +1,107 @@
defmodule Towerops.Snmp.EntityPhysical do
@moduledoc """
SNMP entity physical schema for ENTITY-MIB (RFC 4133) hardware inventory.
Stores physical component information discovered via entPhysicalTable,
including chassis, modules, ports, power supplies, fans, and sensors.
Supports hierarchical parent/child relationships for physical containment.
"""
use Ecto.Schema
import Ecto.Changeset
alias Ecto.Association.NotLoaded
alias Towerops.Snmp.Device
@primary_key {:id, :binary_id, autogenerate: true}
@foreign_key_type :binary_id
schema "snmp_entity_physical" do
field :entity_index, :string
field :parent_index, :string
field :entity_class, :string
field :entity_type, :string
field :name, :string
field :description, :string
field :serial_number, :string
field :model, :string
field :manufacturer, :string
field :hardware_revision, :string
field :firmware_revision, :string
field :software_revision, :string
field :physical_index, :integer
belongs_to :snmp_device, Device
belongs_to :parent, __MODULE__
has_many :children, __MODULE__, foreign_key: :parent_id
timestamps(type: :utc_datetime)
end
@type t :: %__MODULE__{
id: Ecto.UUID.t(),
entity_index: String.t(),
parent_index: String.t() | nil,
entity_class: String.t() | nil,
entity_type: String.t() | nil,
name: String.t() | nil,
description: String.t() | nil,
serial_number: String.t() | nil,
model: String.t() | nil,
manufacturer: String.t() | nil,
hardware_revision: String.t() | nil,
firmware_revision: String.t() | nil,
software_revision: String.t() | nil,
physical_index: integer() | nil,
snmp_device_id: Ecto.UUID.t(),
snmp_device: NotLoaded.t() | Device.t(),
parent_id: Ecto.UUID.t() | nil,
parent: NotLoaded.t() | t() | nil,
children: NotLoaded.t() | [t()],
inserted_at: DateTime.t(),
updated_at: DateTime.t()
}
# ENTITY-MIB PhysicalClass values (RFC 4133)
@valid_entity_classes ~w(
other
unknown
chassis
backplane
container
powerSupply
fan
sensor
module
port
stack
)
@doc false
def changeset(entity_physical, attrs) do
entity_physical
|> cast(attrs, [
:snmp_device_id,
:entity_index,
:parent_index,
:entity_class,
:entity_type,
:name,
:description,
:serial_number,
:model,
:manufacturer,
:hardware_revision,
:firmware_revision,
:software_revision,
:physical_index,
:parent_id
])
|> validate_required([:snmp_device_id, :entity_index])
|> validate_inclusion(:entity_class, @valid_entity_classes)
|> unique_constraint([:snmp_device_id, :entity_index],
name: :snmp_entity_physical_snmp_device_id_entity_index_index
)
|> foreign_key_constraint(:snmp_device_id)
|> foreign_key_constraint(:parent_id)
end
end

80
lib/towerops/snmp/entity_physical_reading.ex Normal file
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@ -0,0 +1,80 @@
defmodule Towerops.Snmp.EntityPhysicalReading do
@moduledoc """
Time-series schema for tracking entity physical operational and administrative status changes.
Stores readings from ENTITY-MIB (RFC 4133) entPhysicalTable for monitoring
component health over time. Tracks operational status (is this component working?)
and administrative status (is this component enabled?) for power supplies, fans,
modules, and other physical entities.
"""
use Ecto.Schema
import Ecto.Changeset
alias Towerops.Snmp.EntityPhysical
@primary_key {:id, :binary_id, autogenerate: true}
@foreign_key_type :binary_id
schema "snmp_entity_physical_readings" do
field :operational_status, :string
field :admin_status, :string
field :measured_at, :utc_datetime
belongs_to :entity_physical, EntityPhysical
timestamps(type: :utc_datetime)
end
@type t :: %__MODULE__{
id: Ecto.UUID.t(),
entity_physical_id: Ecto.UUID.t(),
operational_status: String.t() | nil,
admin_status: String.t() | nil,
measured_at: DateTime.t(),
inserted_at: DateTime.t(),
updated_at: DateTime.t()
}
# RFC 2578 OperStatus values
@operational_statuses [
"up",
"down",
"testing",
"unknown",
"dormant",
"notPresent",
"lowerLayerDown"
]
# RFC 2578 AdminStatus values
@admin_statuses ["locked", "unlocked", "shuttingDown", "unknown"]
@doc """
Creates a changeset for entity physical reading.
## Parameters
- reading: The entity_physical_reading struct
- attrs: Map of attributes to change
## Required Fields
- entity_physical_id
- measured_at
## Optional Fields
- operational_status (must be one of #{inspect(@operational_statuses)})
- admin_status (must be one of #{inspect(@admin_statuses)})
"""
def changeset(reading, attrs) do
reading
|> cast(attrs, [
:entity_physical_id,
:operational_status,
:admin_status,
:measured_at
])
|> validate_required([:entity_physical_id, :measured_at])
|> validate_inclusion(:operational_status, @operational_statuses)
|> validate_inclusion(:admin_status, @admin_statuses)
|> foreign_key_constraint(:entity_physical_id)
end
end

65
lib/towerops/snmp/printer_supply.ex Normal file
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@ -0,0 +1,65 @@
defmodule Towerops.Snmp.PrinterSupply do
@moduledoc false
use Ecto.Schema
import Ecto.Changeset
alias Towerops.Devices.Device
@primary_key {:id, :binary_id, autogenerate: true}
@foreign_key_type :binary_id
schema "printer_supplies" do
belongs_to :snmp_device, Device
field :supply_index, :string
field :supply_type, :string
field :supply_description, :string
field :supply_unit, :string
field :max_capacity, :integer
field :current_level, :integer
field :supply_percent, :integer, virtual: true
field :color_name, :string
field :part_number, :string
timestamps(type: :utc_datetime)
end
@doc false
def changeset(printer_supply, attrs) do
printer_supply
|> cast(attrs, [
:snmp_device_id,
:supply_index,
:supply_type,
:supply_description,
:supply_unit,
:max_capacity,
:current_level,
:color_name,
:part_number
])
|> validate_required([:snmp_device_id, :supply_index])
|> foreign_key_constraint(:snmp_device_id)
|> unique_constraint([:snmp_device_id, :supply_index],
name: :printer_supplies_snmp_device_id_supply_index_index
)
|> calculate_supply_percent()
end
defp calculate_supply_percent(changeset) do
max_capacity = get_field(changeset, :max_capacity)
current_level = get_field(changeset, :current_level)
supply_percent =
case {max_capacity, current_level} do
{max, current} when is_integer(max) and is_integer(current) and max > 0 ->
round(current * 100 / max)
_ ->
nil
end
put_change(changeset, :supply_percent, supply_percent)
end
end

335
lib/towerops/snmp/profiles/base.ex
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@ -161,6 +161,56 @@ defmodule Towerops.Snmp.Profiles.Base do
# 6 = powerSupply, 7 = fan
@state_sensor_classes [6, 7]
# Printer-MIB OIDs for supply tracking (toner, ink, drums, etc.)
# RFC 3805 - Printer MIB v2
@printer_mib_oids %{
prt_marker_supplies_type: "1.3.6.1.2.1.43.11.1.1.3.1",
# PrtMarkerSuppliesTypeTC
prt_marker_supplies_description: "1.3.6.1.2.1.43.11.1.1.4.1",
prt_marker_supplies_unit: "1.3.6.1.2.1.43.11.1.1.7.1",
# PrtMarkerSuppliesSupplyUnitTC
prt_marker_supplies_max_capacity: "1.3.6.1.2.1.43.11.1.1.8.1",
prt_marker_supplies_level: "1.3.6.1.2.1.43.11.1.1.9.1",
prt_marker_colorant_value: "1.3.6.1.2.1.43.11.1.1.12.1"
# Color name
}
# Printer supply type mapping (RFC 3805)
@printer_supply_types %{
1 => "other",
2 => "unknown",
3 => "toner",
4 => "ink",
5 => "inkCartridge",
6 => "inkRibbon",
7 => "wasteInk",
8 => "wax",
9 => "fuser",
10 => "drum",
11 => "developer",
12 => "cleanerUnit",
13 => "transferUnit",
14 => "coronaWire",
15 => "fuser"
}
# Printer supply unit mapping (RFC 3805)
@printer_supply_units %{
3 => "tenThousandthsOfInches",
4 => "micrometers",
7 => "impressions",
8 => "sheets",
11 => "hours",
12 => "thousandthsOfOunces",
13 => "tenthsOfGrams",
14 => "hundredthsOfFluidOunces",
15 => "tenthsOfMilliliters",
16 => "feet",
17 => "meters",
18 => "items",
19 => "percent"
}
@doc """
Discovers system information from SNMPv2-MIB.
Returns a map with device metadata.
@ -997,6 +1047,291 @@ defmodule Towerops.Snmp.Profiles.Base do
defp to_string_or_nil(value) when is_binary(value), do: value
defp to_string_or_nil(value), do: to_string(value)
@doc """
Discovers entity physical inventory from ENTITY-MIB entPhysicalTable.
Returns a list of entity physical maps matching the EntityPhysical schema.
Includes chassis, modules, ports, power supplies, fans, and sensors.
"""
@spec discover_entity_physical(Client.connection_opts()) :: {:ok, [map()]}
def discover_entity_physical(client_opts) do
# Walk entPhysicalDescr to get entity indices
case Client.walk(client_opts, @entity_mib_oids.ent_phys_descr) do
{:ok, descr_results} when is_map(descr_results) and map_size(descr_results) > 0 ->
do_discover_entity_physical(client_opts, descr_results)
{:ok, _} ->
Logger.debug("No entity physical entries found in ENTITY-MIB")
{:ok, []}
{:error, reason} ->
Logger.debug("ENTITY-MIB entPhysicalTable walk failed: #{inspect(reason)}")
{:ok, []}
end
end
defp do_discover_entity_physical(client_opts, descr_results) do
# Fetch all entity physical attributes
parent_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_contained_in)
class_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_class)
name_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_name)
serial_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_serial_num)
model_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_model_name)
mfg_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_mfg_name)
hw_rev_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_hardware_rev)
fw_rev_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_firmware_rev)
sw_rev_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_software_rev)
# Build entity physical list matching EntityPhysical schema
entities =
descr_results
|> Enum.map(fn {oid, description} ->
entity_index = extract_entity_index(oid)
%{
entity_index: to_string(entity_index),
parent_index: to_string(Map.get(parent_map, entity_index, 0)),
entity_class: entity_physical_class_to_string(Map.get(class_map, entity_index)),
name: to_string_or_nil(Map.get(name_map, entity_index)),
description: to_string_or_nil(description),
serial_number: to_string_or_nil(Map.get(serial_map, entity_index)),
model: to_string_or_nil(Map.get(model_map, entity_index)),
manufacturer: to_string_or_nil(Map.get(mfg_map, entity_index)),
hardware_revision: to_string_or_nil(Map.get(hw_rev_map, entity_index)),
firmware_revision: to_string_or_nil(Map.get(fw_rev_map, entity_index)),
software_revision: to_string_or_nil(Map.get(sw_rev_map, entity_index))
}
end)
|> Enum.sort_by(& &1.entity_index)
Logger.debug("Discovered #{length(entities)} entity physical entries from ENTITY-MIB")
{:ok, entities}
end
# ENTITY-MIB PhysicalClass values for EntityPhysical schema
@entity_physical_class_map %{
1 => "other",
2 => "unknown",
3 => "chassis",
4 => "backplane",
5 => "container",
6 => "powerSupply",
7 => "fan",
8 => "sensor",
9 => "module",
10 => "port",
11 => "stack"
}
defp entity_physical_class_to_string(class) when is_integer(class) do
Map.get(@entity_physical_class_map, class, "other")
end
defp entity_physical_class_to_string(_), do: "other"
@doc """
Discovers optical transceivers (SFP/SFP+/QSFP/etc) from ENTITY-MIB.
Walks entPhysicalTable to find port/module entities with transceiver keywords
in their description. Returns a list of transceiver maps matching the Transceiver schema.
"""
@spec discover_transceivers(Client.connection_opts()) :: {:ok, [map()]}
def discover_transceivers(client_opts) do
# Walk entPhysicalDescr to get entity indices
case Client.walk(client_opts, @entity_mib_oids.ent_phys_descr) do
{:ok, descr_results} when is_map(descr_results) and map_size(descr_results) > 0 ->
do_discover_transceivers(client_opts, descr_results)
{:ok, _} ->
Logger.debug("No entity physical entries found for transceiver discovery")
{:ok, []}
{:error, reason} ->
Logger.debug("ENTITY-MIB entPhysicalTable walk failed for transceivers: #{inspect(reason)}")
{:ok, []}
end
end
defp do_discover_transceivers(client_opts, descr_results) do
# Fetch entity physical attributes needed for transceivers
class_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_class)
serial_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_serial_num)
model_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_model_name)
mfg_map = walk_entity_attribute(client_opts, @entity_mib_oids.ent_phys_mfg_name)
# Build transceiver list by filtering for port/module entities with transceiver keywords
transceivers =
descr_results
|> Enum.filter(fn {oid, description} ->
entity_index = extract_entity_index(oid)
entity_class = Map.get(class_map, entity_index)
# Only consider port (10) or module (9) entities
is_port_or_module = entity_class in [9, 10]
# Check if description contains transceiver keywords
has_transceiver_keyword =
transceiver_description?(to_string_or_nil(description) || "")
is_port_or_module and has_transceiver_keyword
end)
|> Enum.map(fn {oid, description} ->
entity_index = extract_entity_index(oid)
description_str = to_string_or_nil(description) || ""
%{
port_index: to_string(entity_index),
transceiver_type: detect_transceiver_type(description_str),
vendor_name: to_string_or_nil(Map.get(mfg_map, entity_index)),
vendor_part_number: to_string_or_nil(Map.get(model_map, entity_index)),
vendor_serial_number: to_string_or_nil(Map.get(serial_map, entity_index)),
supports_dom: true
}
end)
|> Enum.sort_by(& &1.port_index)
Logger.debug("Discovered #{length(transceivers)} transceivers from ENTITY-MIB")
{:ok, transceivers}
end
# Check if description contains transceiver keywords
defp transceiver_description?(description) do
description_upper = String.upcase(description)
transceiver_keywords = [
"SFP",
"QSFP",
"XFP",
"GBIC",
"CFP",
"TRANSCEIVER",
"OPTIC"
]
Enum.any?(transceiver_keywords, &String.contains?(description_upper, &1))
end
# Detect transceiver type from description
# Checks most specific types first (QSFP28 before QSFP, SFP+ before SFP)
defp detect_transceiver_type(description) do
description_upper = String.upcase(description)
# Map of type patterns to detect, ordered from most to least specific
type_patterns = [
{"QSFP28", "QSFP28"},
{"QSFP+", "QSFP+"},
{"QSFP", "QSFP"},
{"SFP+", "SFP+"},
{"SFP", "SFP"},
{"CFP4", "CFP4"},
{"CFP2", "CFP2"},
{"CFP", "CFP"},
{"XFP", "XFP"},
{"GBIC", "GBIC"}
]
Enum.find_value(type_patterns, "unknown", fn {pattern, type_name} ->
if String.contains?(description_upper, pattern), do: type_name
end)
end
@doc """
Discovers printer supplies (toner, ink, drums, etc.) from Printer-MIB.
Uses RFC 3805 Printer MIB v2 prtMarkerSuppliesTable to discover printer consumables.
Returns a list of supply maps with supply_index, supply_type, description, capacity, etc.
"""
@spec discover_printer_supplies(Client.connection_opts()) :: {:ok, [map()]}
def discover_printer_supplies(client_opts) do
# Walk prtMarkerSuppliesType to get supply indices
case Client.walk(client_opts, @printer_mib_oids.prt_marker_supplies_type) do
{:ok, type_results} when is_map(type_results) and map_size(type_results) > 0 ->
do_discover_printer_supplies(client_opts, type_results)
{:ok, _} ->
Logger.debug("No printer supplies found in Printer-MIB")
{:ok, []}
{:error, reason} ->
Logger.debug("Printer-MIB prtMarkerSuppliesTable walk failed: #{inspect(reason)}")
{:ok, []}
end
end
defp do_discover_printer_supplies(client_opts, type_results) do
# Fetch all supply attributes
description_map = walk_printer_attribute(client_opts, @printer_mib_oids.prt_marker_supplies_description)
unit_map = walk_printer_attribute(client_opts, @printer_mib_oids.prt_marker_supplies_unit)
max_capacity_map = walk_printer_attribute(client_opts, @printer_mib_oids.prt_marker_supplies_max_capacity)
level_map = walk_printer_attribute(client_opts, @printer_mib_oids.prt_marker_supplies_level)
color_map = walk_printer_attribute(client_opts, @printer_mib_oids.prt_marker_colorant_value)
supplies =
type_results
|> Enum.map(fn {oid, type_code} ->
index = extract_printer_supply_index(oid)
type_int = parse_integer(type_code)
%{
supply_index: to_string(index),
supply_type: map_supply_type(type_int),
supply_description: to_string_or_nil(Map.get(description_map, index)),
supply_unit: map_supply_unit(parse_integer(Map.get(unit_map, index))),
max_capacity: parse_supply_capacity(Map.get(max_capacity_map, index)),
current_level: parse_supply_capacity(Map.get(level_map, index)),
color_name: to_string_or_nil(Map.get(color_map, index))
}
end)
|> Enum.sort_by(& &1.supply_index)
Logger.debug("Discovered #{length(supplies)} printer supplies from Printer-MIB")
{:ok, supplies}
end
defp walk_printer_attribute(client_opts, oid) do
case Client.walk(client_opts, oid) do
{:ok, results} when is_map(results) ->
Map.new(results, fn {result_oid, value} ->
index = extract_printer_supply_index(result_oid)
{index, value}
end)
_ ->
%{}
end
end
defp extract_printer_supply_index(oid) when is_binary(oid) do
# Extract the last two parts: table.entry.column.HR_INDEX.SUPPLY_INDEX
# e.g., "1.3.6.1.2.1.43.11.1.1.3.1.1" -> "1"
oid
|> String.split(".")
|> List.last()
|> String.to_integer()
end
defp map_supply_type(type_code) when is_integer(type_code) do
Map.get(@printer_supply_types, type_code, "unknown")
end
defp map_supply_type(_), do: "unknown"
defp map_supply_unit(unit_code) when is_integer(unit_code) do
Map.get(@printer_supply_units, unit_code)
end
defp map_supply_unit(_), do: nil
defp parse_supply_capacity(value) when is_integer(value) and value >= 0, do: value
defp parse_supply_capacity(value) when is_binary(value) do
case Integer.parse(value) do
{int_val, _} when int_val >= 0 -> int_val
_ -> nil
end
end
defp parse_supply_capacity(_), do: nil
@doc """
Discovers processor/CPU information from multiple MIBs.

101
lib/towerops/snmp/transceiver.ex Normal file
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@ -0,0 +1,101 @@
defmodule Towerops.Snmp.Transceiver do
@moduledoc """
SNMP transceiver (optical module) schema for SFP/SFP+/QSFP/etc.
Stores optical transceiver information discovered via ENTITY-MIB or vendor-specific MIBs.
Includes vendor details, optical specifications, and DOM (Digital Optical Monitoring) capabilities.
Can be linked to entity_physical for hardware inventory integration.
"""
use Ecto.Schema
import Ecto.Changeset
alias Ecto.Association.NotLoaded
alias Towerops.Snmp.Device
alias Towerops.Snmp.EntityPhysical
alias Towerops.Snmp.TransceiverReading
@primary_key {:id, :binary_id, autogenerate: true}
@foreign_key_type :binary_id
schema "snmp_transceivers" do
field :port_index, :string
field :transceiver_type, :string
field :vendor_name, :string
field :vendor_part_number, :string
field :vendor_serial_number, :string
field :vendor_revision, :string
field :wavelength_nm, :integer
field :connector_type, :string
field :nominal_bitrate_mbps, :integer
field :supports_dom, :boolean, default: false
belongs_to :snmp_device, Device
belongs_to :entity_physical, EntityPhysical
has_many :readings, TransceiverReading
timestamps(type: :utc_datetime)
end
@type t :: %__MODULE__{
id: Ecto.UUID.t(),
port_index: String.t(),
transceiver_type: String.t() | nil,
vendor_name: String.t() | nil,
vendor_part_number: String.t() | nil,
vendor_serial_number: String.t() | nil,
vendor_revision: String.t() | nil,
wavelength_nm: integer() | nil,
connector_type: String.t() | nil,
nominal_bitrate_mbps: integer() | nil,
supports_dom: boolean(),
snmp_device_id: Ecto.UUID.t(),
snmp_device: NotLoaded.t() | Device.t(),
entity_physical_id: Ecto.UUID.t() | nil,
entity_physical: NotLoaded.t() | EntityPhysical.t() | nil,
readings: NotLoaded.t() | [TransceiverReading.t()],
inserted_at: DateTime.t(),
updated_at: DateTime.t()
}
# Common transceiver types from SFF specifications
@valid_transceiver_types ~w(
SFP
SFP+
QSFP
QSFP+
QSFP28
XFP
CFP
CFP2
CFP4
GBIC
other
unknown
)
@doc false
def changeset(transceiver, attrs) do
transceiver
|> cast(attrs, [
:snmp_device_id,
:entity_physical_id,
:port_index,
:transceiver_type,
:vendor_name,
:vendor_part_number,
:vendor_serial_number,
:vendor_revision,
:wavelength_nm,
:connector_type,
:nominal_bitrate_mbps,
:supports_dom
])
|> validate_required([:snmp_device_id, :port_index])
|> validate_inclusion(:transceiver_type, @valid_transceiver_types)
|> unique_constraint([:snmp_device_id, :port_index],
name: :snmp_transceivers_snmp_device_id_port_index_index
)
|> foreign_key_constraint(:snmp_device_id)
|> foreign_key_constraint(:entity_physical_id)
end
end

60
lib/towerops/snmp/transceiver_reading.ex Normal file
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@ -0,0 +1,60 @@
defmodule Towerops.Snmp.TransceiverReading do
@moduledoc """
SNMP transceiver DOM (Digital Optical Monitoring) reading schema.
Stores time-series optical power and diagnostic metrics for transceivers.
Includes standard DOM parameters: Rx/Tx power, bias current, temperature, voltage.
Readings are typically polled every 60 seconds for transceivers with DOM support.
"""
use Ecto.Schema
import Ecto.Changeset
alias Ecto.Association.NotLoaded
alias Towerops.Snmp.Transceiver
@primary_key {:id, :binary_id, autogenerate: true}
@foreign_key_type :binary_id
schema "snmp_transceiver_readings" do
field :rx_power_dbm, :float
field :tx_power_dbm, :float
field :bias_current_ma, :float
field :temperature_celsius, :float
field :voltage_v, :float
field :measured_at, :utc_datetime
belongs_to :transceiver, Transceiver
timestamps(type: :utc_datetime)
end
@type t :: %__MODULE__{
id: Ecto.UUID.t(),
rx_power_dbm: float() | nil,
tx_power_dbm: float() | nil,
bias_current_ma: float() | nil,
temperature_celsius: float() | nil,
voltage_v: float() | nil,
measured_at: DateTime.t(),
transceiver_id: Ecto.UUID.t(),
transceiver: NotLoaded.t() | Transceiver.t(),
inserted_at: DateTime.t(),
updated_at: DateTime.t()
}
@doc false
def changeset(reading, attrs) do
reading
|> cast(attrs, [
:transceiver_id,
:rx_power_dbm,
:tx_power_dbm,
:bias_current_ma,
:temperature_celsius,
:voltage_v,
:measured_at
])
|> validate_required([:transceiver_id, :measured_at])
|> foreign_key_constraint(:transceiver_id)
end
end

258
lib/towerops/workers/device_poller_worker.ex
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@ -181,7 +181,9 @@ defmodule Towerops.Workers.DevicePollerWorker do
"processors",
"storage",
"mempools",
"wireless_clients"
"wireless_clients",
"transceivers",
"entity_physical"
]
tasks = [
@ -195,7 +197,9 @@ defmodule Towerops.Workers.DevicePollerWorker do
Task.async(fn -> poll_device_processors(device, snmp_device, client_opts, now) end),
Task.async(fn -> poll_device_storage(device, snmp_device, client_opts, now) end),
Task.async(fn -> poll_device_mempools(device, snmp_device, client_opts, now) end),
Task.async(fn -> poll_wireless_clients(device, snmp_device, client_opts) end)
Task.async(fn -> poll_wireless_clients(device, snmp_device, client_opts) end),
Task.async(fn -> poll_device_transceivers(device, snmp_device, client_opts, now) end),
Task.async(fn -> poll_device_entity_physical(device, snmp_device, client_opts, now) end)
]
# Wait for all tasks with timeout, log failures
@ -460,6 +464,46 @@ defmodule Towerops.Workers.DevicePollerWorker do
Logger.debug("Inserted #{count} wireless client readings for #{device.name}")
end
defp poll_device_transceivers(device, snmp_device, client_opts, now) do
transceivers = snmp_device.transceivers || []
if transceivers != [] do
poll_transceivers(transceivers, client_opts, now)
Logger.debug("Polled transceivers for #{device.name}")
_ =
Phoenix.PubSub.broadcast(
Towerops.PubSub,
"device:#{device.id}",
{:transceivers_updated, device.id}
)
end
rescue
error ->
Logger.error("Error polling transceivers for #{device.name}: #{inspect(error)}\n#{Exception.format_stacktrace()}")
end
defp poll_device_entity_physical(device, snmp_device, client_opts, now) do
entities = snmp_device.entity_physical || []
if entities != [] do
poll_entity_physical_status(entities, client_opts, now)
Logger.debug("Polled entity physical status for #{device.name}")
_ =
Phoenix.PubSub.broadcast(
Towerops.PubSub,
"device:#{device.id}",
{:hardware_inventory_updated, device.id}
)
end
rescue
error ->
Logger.error(
"Error polling entity physical for #{device.name}: #{inspect(error)}\n#{Exception.format_stacktrace()}"
)
end
defp poll_device_processors(device, snmp_device, client_opts, now) do
processors = snmp_device.processors || []
@ -1637,6 +1681,216 @@ defmodule Towerops.Workers.DevicePollerWorker do
end
end
@doc """
Polls DOM (Digital Optical Monitoring) metrics for transceivers.
Only polls transceivers with supports_dom=true. For each transceiver, attempts to
read optical power, temperature, voltage, and bias current from vendor-specific MIBs.
"""
def poll_transceivers(transceivers, client_opts, timestamp) do
# Filter to only DOM-capable transceivers
dom_transceivers = Enum.filter(transceivers, & &1.supports_dom)
if dom_transceivers == [] do
:ok
else
poll_transceiver_dom_metrics(dom_transceivers, client_opts, timestamp)
end
end
defp poll_transceiver_dom_metrics(transceivers, client_opts, timestamp) do
# Truncate timestamp to seconds for Ecto :utc_datetime compatibility
truncated_timestamp = DateTime.truncate(timestamp, :second)
# Poll each transceiver's DOM metrics
poll_results =
transceivers
|> Task.async_stream(
fn transceiver ->
result = poll_transceiver_dom(transceiver, client_opts)
{transceiver, result}
end,
max_concurrency: 2,
timeout: 10_000,
on_timeout: :kill_task
)
|> Enum.flat_map(fn
{:ok, pair} -> [pair]
{:exit, _reason} -> []
end)
# Build reading entries
reading_entries =
Enum.map(poll_results, fn {transceiver, metrics} ->
build_transceiver_reading_entry(transceiver, metrics, truncated_timestamp)
end)
# Insert readings (even if some metrics are nil)
case reading_entries do
[] ->
:ok
entries ->
Snmp.create_transceiver_readings_batch(entries)
end
:ok
end
# Poll DOM metrics for a single transceiver
# Returns map with rx_power_dbm, tx_power_dbm, bias_current_ma, temperature_celsius, voltage_v
defp poll_transceiver_dom(transceiver, client_opts) do
# For now, use simulated vendor-specific OIDs (CISCO-ENTITY-SENSOR-MIB style)
# In production, this would dispatch to vendor-specific profiles
base_oid = "1.3.6.1.4.1.9.9.999.1.1.1.1"
port_index = transceiver.port_index
rx_power = poll_transceiver_metric(client_opts, "#{base_oid}.1.#{port_index}")
tx_power = poll_transceiver_metric(client_opts, "#{base_oid}.2.#{port_index}")
bias_current = poll_transceiver_metric(client_opts, "#{base_oid}.3.#{port_index}")
temperature = poll_transceiver_metric(client_opts, "#{base_oid}.4.#{port_index}")
voltage = poll_transceiver_metric(client_opts, "#{base_oid}.5.#{port_index}")
%{
rx_power_dbm: rx_power,
tx_power_dbm: tx_power,
bias_current_ma: bias_current,
temperature_celsius: temperature,
voltage_v: voltage
}
end
defp poll_transceiver_metric(client_opts, oid) do
case Client.get(client_opts, oid) do
{:ok, value} when is_binary(value) ->
case Float.parse(value) do
{float_val, _} -> float_val
:error -> nil
end
{:ok, value} when is_integer(value) ->
value / 1.0
{:ok, value} when is_float(value) ->
value
{:error, _} ->
nil
end
end
defp build_transceiver_reading_entry(transceiver, metrics, timestamp) do
%{
transceiver_id: transceiver.id,
rx_power_dbm: metrics.rx_power_dbm,
tx_power_dbm: metrics.tx_power_dbm,
bias_current_ma: metrics.bias_current_ma,
temperature_celsius: metrics.temperature_celsius,
voltage_v: metrics.voltage_v,
measured_at: timestamp
}
end
@doc """
Polls operational and administrative status for entity physical components.
Monitors status changes for power supplies, fans, modules, and other physical
entities. Records readings when status changes are detected.
"""
def poll_entity_physical_status(entities, client_opts, timestamp) do
# Truncate timestamp to seconds for Ecto :utc_datetime compatibility
truncated_timestamp = DateTime.truncate(timestamp, :second)
# Poll each entity's operational and admin status
poll_results =
entities
|> Task.async_stream(
fn entity ->
result = poll_entity_status(entity, client_opts)
{entity, result}
end,
max_concurrency: 2,
timeout: 10_000,
on_timeout: :kill_task
)
|> Enum.flat_map(fn
{:ok, pair} -> [pair]
{:exit, _reason} -> []
end)
# Build reading entries
reading_entries =
Enum.map(poll_results, fn {entity, status} ->
build_entity_physical_reading_entry(entity, status, truncated_timestamp)
end)
# Insert readings (even if some statuses are nil)
case reading_entries do
[] ->
:ok
entries ->
Snmp.create_entity_physical_readings_batch(entries)
end
:ok
end
# Poll operational and admin status for a single entity
# Returns map with operational_status and admin_status
defp poll_entity_status(entity, client_opts) do
# ENTITY-MIB (RFC 4133) OIDs for status
# entPhysicalOperStatus: 1.3.6.1.2.1.47.1.1.1.1.5
# entPhysicalAdminStatus: 1.3.6.1.2.1.47.1.1.1.1.6 (not always supported)
oper_status_oid = "1.3.6.1.2.1.47.1.1.1.1.5.#{entity.entity_index}"
admin_status_oid = "1.3.6.1.2.1.47.1.1.1.1.6.#{entity.entity_index}"
oper_status = poll_entity_status_value(client_opts, oper_status_oid)
admin_status = poll_entity_status_value(client_opts, admin_status_oid)
%{
operational_status: oper_status,
admin_status: admin_status
}
end
defp poll_entity_status_value(client_opts, oid) do
case Client.get(client_opts, oid) do
{:ok, value} when is_integer(value) ->
map_status_code(value)
{:ok, value} when is_binary(value) ->
case Integer.parse(value) do
{int_value, _} -> map_status_code(int_value)
:error -> nil
end
_ ->
nil
end
end
# Map RFC 2578 OperStatus enum values
defp map_status_code(1), do: "up"
defp map_status_code(2), do: "down"
defp map_status_code(3), do: "testing"
defp map_status_code(4), do: "unknown"
defp map_status_code(5), do: "dormant"
defp map_status_code(6), do: "notPresent"
defp map_status_code(7), do: "lowerLayerDown"
# Admin status values (1-3 overlap with oper status, plus shuttingDown)
# locked(1), unlocked(2), shuttingDown(3), unknown(4)
defp map_status_code(_), do: "unknown"
defp build_entity_physical_reading_entry(entity, status, timestamp) do
%{
entity_physical_id: entity.id,
operational_status: status.operational_status,
admin_status: status.admin_status,
measured_at: timestamp
}
end
defp get_poll_interval(device) do
min_interval = Application.get_env(:towerops, :snmp_min_poll_interval, 300)
max(device.check_interval_seconds || @default_poll_interval, min_interval)

81
lib/towerops_web/live/device_live/show.ex
View file

@ -184,6 +184,21 @@ defmodule ToweropsWeb.DeviceLive.Show do
{:noreply, reload_if_tab(socket, ["overview"])}
end
@impl true
def handle_info({:transceivers_updated, _device_id}, socket) do
{:noreply, reload_if_tab(socket, ["transceivers"])}
end
@impl true
def handle_info({:printer_supplies_updated, _device_id}, socket) do
{:noreply, reload_if_tab(socket, ["printer_supplies"])}
end
@impl true
def handle_info({:hardware_inventory_updated, _device_id}, socket) do
{:noreply, reload_if_tab(socket, ["hardware"])}
end
@impl true
def handle_info({:device_event, _event_attrs}, socket) do
# Device event logged (interface changes, sensor thresholds, etc.)
@ -294,6 +309,9 @@ defmodule ToweropsWeb.DeviceLive.Show do
|> assign_overview_data(device_id)
|> assign_ports_data()
|> assign_wireless_data(device_id)
|> assign_transceivers_data(device_id)
|> assign_printer_supplies_data(device_id)
|> assign_hardware_inventory_data(device_id)
|> assign_logs_data(device_id)
|> assign_backups_data(device_id)
|> assign_checks_data(device_id)
@ -334,7 +352,17 @@ defmodule ToweropsWeb.DeviceLive.Show do
# Dispatch to the appropriate tab-specific loader based on active_tab.
defp reload_current_tab_data(socket, device_id) do
# Tabs that need device_id parameter
tabs_with_device_id = ["overview", "logs", "backups", "checks", "wireless"]
tabs_with_device_id = [
"overview",
"logs",
"backups",
"checks",
"wireless",
"transceivers",
"printer_supplies",
"hardware"
]
# Tabs that don't need device_id parameter
tabs_without_device_id = ["ports", "preseem", "gaiia"]
@ -355,6 +383,9 @@ defmodule ToweropsWeb.DeviceLive.Show do
"backups" -> assign_backups_data(socket, device_id)
"checks" -> assign_checks_data(socket, device_id)
"wireless" -> assign_wireless_data(socket, device_id)
"transceivers" -> assign_transceivers_data(socket, device_id)
"printer_supplies" -> assign_printer_supplies_data(socket, device_id)
"hardware" -> assign_hardware_inventory_data(socket, device_id)
end
end
@ -675,6 +706,54 @@ defmodule ToweropsWeb.DeviceLive.Show do
|> assign(:wireless_clients_available, wireless_clients != [])
end
# Transceivers tab data.
defp assign_transceivers_data(socket, _device_id) do
snmp_device = socket.assigns.snmp_device
transceivers =
if snmp_device do
Snmp.list_transceivers(snmp_device.id)
else
[]
end
socket
|> assign(:transceivers, transceivers)
|> assign(:transceivers_available, transceivers != [])
end
# Printer supplies tab data.
defp assign_printer_supplies_data(socket, _device_id) do
snmp_device = socket.assigns.snmp_device
printer_supplies =
if snmp_device do
Snmp.list_printer_supplies(snmp_device.id)
else
[]
end
socket
|> assign(:printer_supplies, printer_supplies)
|> assign(:printer_supplies_available, printer_supplies != [])
end
# Hardware inventory tab data.
defp assign_hardware_inventory_data(socket, _device_id) do
snmp_device = socket.assigns.snmp_device
hardware_inventory =
if snmp_device do
Snmp.list_entity_physical(snmp_device.id)
else
[]
end
socket
|> assign(:hardware_inventory, hardware_inventory)
|> assign(:hardware_inventory_available, hardware_inventory != [])
end
defp get_available_firmware(nil), do: nil
defp get_available_firmware(snmp_device) do

309
lib/towerops_web/live/device_live/show.html.heex
View file

@ -186,6 +186,54 @@
</.link>
<% end %>
<%= if assigns[:transceivers_available] do %>
<.link
patch={~p"/devices/#{@device.id}?tab=transceivers"}
class={[
"whitespace-nowrap py-4 px-1 border-b-2 text-sm transition-colors",
if @active_tab == "transceivers" do
"border-blue-500 text-blue-600 dark:text-blue-400 font-semibold"
else
"border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300 dark:text-gray-400 dark:hover:text-gray-300 font-medium"
end
]}
>
{t("Transceivers")}
</.link>
<% end %>
<%= if assigns[:printer_supplies_available] do %>
<.link
patch={~p"/devices/#{@device.id}?tab=printer_supplies"}
class={[
"whitespace-nowrap py-4 px-1 border-b-2 text-sm transition-colors",
if @active_tab == "printer_supplies" do
"border-blue-500 text-blue-600 dark:text-blue-400 font-semibold"
else
"border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300 dark:text-gray-400 dark:hover:text-gray-300 font-medium"
end
]}
>
{t("Printer Supplies")}
</.link>
<% end %>
<%= if assigns[:hardware_inventory_available] do %>
<.link
patch={~p"/devices/#{@device.id}?tab=hardware"}
class={[
"whitespace-nowrap py-4 px-1 border-b-2 text-sm transition-colors",
if @active_tab == "hardware" do
"border-blue-500 text-blue-600 dark:text-blue-400 font-semibold"
else
"border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300 dark:text-gray-400 dark:hover:text-gray-300 font-medium"
end
]}
>
{t("Hardware Inventory")}
</.link>
<% end %>
<%= if @device.snmp_enabled do %>
<.link
patch={~p"/devices/#{@device.id}?tab=neighbors"}
@ -1685,6 +1733,267 @@
</p>
</div>
<% end %>
<% "transceivers" -> %>
<%= if @transceivers && length(@transceivers) > 0 do %>
<div class="bg-white dark:bg-gray-800/50 rounded-lg border border-gray-200 dark:border-white/10">
<div class="px-4 py-3 border-b border-gray-200 dark:border-white/10">
<h3 class="text-sm font-semibold text-gray-900 dark:text-white">
{t("Optical Transceivers")}
</h3>
<p class="text-xs text-gray-500 dark:text-gray-400 mt-0.5">
{length(@transceivers)} {if length(@transceivers) == 1,
do: "transceiver",
else: "transceivers"} installed
</p>
</div>
<div class="overflow-x-auto">
<table class="min-w-full divide-y divide-gray-200 dark:divide-white/10">
<thead class="bg-gray-50 dark:bg-gray-800/75">
<tr class="text-xs text-gray-600 dark:text-gray-400">
<th class="px-4 py-3 text-left font-medium">Port</th>
<th class="px-4 py-3 text-left font-medium">Type</th>
<th class="px-4 py-3 text-left font-medium">Vendor</th>
<th class="px-4 py-3 text-left font-medium">Part Number</th>
<th class="px-4 py-3 text-left font-medium">Serial Number</th>
<th class="px-4 py-3 text-right font-medium">Wavelength</th>
<th class="px-4 py-3 text-center font-medium">DOM</th>
</tr>
</thead>
<tbody class="divide-y divide-gray-200 dark:divide-white/10">
<%= for transceiver <- @transceivers do %>
<tr class="text-sm hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors">
<td class="px-4 py-3 font-mono text-xs text-gray-900 dark:text-white">
{transceiver.port_index}
</td>
<td class="px-4 py-3">
<span class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-blue-100 text-blue-800 dark:bg-blue-900/30 dark:text-blue-400">
{transceiver.transceiver_type || "Unknown"}
</span>
</td>
<td class="px-4 py-3 text-sm text-gray-900 dark:text-white">
{transceiver.vendor_name || "—"}
</td>
<td class="px-4 py-3 font-mono text-xs text-gray-600 dark:text-gray-400">
{transceiver.vendor_part_number || "—"}
</td>
<td class="px-4 py-3 font-mono text-xs text-gray-600 dark:text-gray-400">
{transceiver.vendor_serial_number || "—"}
</td>
<td class="px-4 py-3 text-right font-mono text-xs text-gray-900 dark:text-white">
<%= if transceiver.wavelength_nm do %>
{transceiver.wavelength_nm} nm
<% else %>
<span class="text-gray-400">—</span>
<% end %>
</td>
<td class="px-4 py-3 text-center">
<%= if transceiver.supports_dom do %>
<span class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-green-100 text-green-800 dark:bg-green-900/30 dark:text-green-400">
DOM
</span>
<% else %>
<span class="text-gray-400 text-xs">—</span>
<% end %>
</td>
</tr>
<% end %>
</tbody>
</table>
</div>
</div>
<% else %>
<div class="text-center py-12">
<.icon
name="hero-cpu-chip"
class="mx-auto h-12 w-12 text-gray-400 dark:text-gray-600"
/>
<h3 class="mt-2 text-sm font-medium text-gray-900 dark:text-white">
{t("No transceivers found")}
</h3>
<p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
{t("No optical transceivers detected on this device.")}
</p>
</div>
<% end %>
<% "printer_supplies" -> %>
<%= if @printer_supplies && length(@printer_supplies) > 0 do %>
<div class="bg-white dark:bg-gray-800/50 rounded-lg border border-gray-200 dark:border-white/10">
<div class="px-4 py-3 border-b border-gray-200 dark:border-white/10">
<h3 class="text-sm font-semibold text-gray-900 dark:text-white">
{t("Printer Supplies")}
</h3>
<p class="text-xs text-gray-500 dark:text-gray-400 mt-0.5">
{length(@printer_supplies)} {if length(@printer_supplies) == 1,
do: "supply",
else: "supplies"} monitored
</p>
</div>
<div class="overflow-x-auto">
<table class="min-w-full divide-y divide-gray-200 dark:divide-white/10">
<thead class="bg-gray-50 dark:bg-gray-800/75">
<tr class="text-xs text-gray-600 dark:text-gray-400">
<th class="px-4 py-3 text-left font-medium">Type</th>
<th class="px-4 py-3 text-left font-medium">Description</th>
<th class="px-4 py-3 text-left font-medium">Color</th>
<th class="px-4 py-3 text-left font-medium">Part Number</th>
<th class="px-4 py-3 text-right font-medium">Level</th>
</tr>
</thead>
<tbody class="divide-y divide-gray-200 dark:divide-white/10">
<%= for supply <- @printer_supplies do %>
<% percent =
if supply.max_capacity && supply.max_capacity > 0 do
round(supply.current_level * 100 / supply.max_capacity)
else
nil
end %>
<tr class="text-sm hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors">
<td class="px-4 py-3">
<span class={[
"inline-flex items-center px-2 py-0.5 rounded text-xs font-medium",
case supply.supply_type do
"toner" ->
"bg-gray-100 text-gray-800 dark:bg-gray-900/30 dark:text-gray-400"
"ink" ->
"bg-blue-100 text-blue-800 dark:bg-blue-900/30 dark:text-blue-400"
"drum" ->
"bg-purple-100 text-purple-800 dark:bg-purple-900/30 dark:text-purple-400"
_ ->
"bg-gray-100 text-gray-800 dark:bg-gray-900/30 dark:text-gray-400"
end
]}>
{supply.supply_type || "Unknown"}
</span>
</td>
<td class="px-4 py-3 text-sm text-gray-900 dark:text-white">
{supply.supply_description || "—"}
</td>
<td class="px-4 py-3 text-sm text-gray-600 dark:text-gray-400">
{supply.color_name || "—"}
</td>
<td class="px-4 py-3 font-mono text-xs text-gray-600 dark:text-gray-400">
{supply.part_number || "—"}
</td>
<td class="px-4 py-3 text-right">
<%= if percent do %>
<div class="flex items-center justify-end gap-2">
<div class="w-24 h-2 bg-gray-200 dark:bg-gray-700 rounded-full overflow-hidden">
<div
class={[
"h-full transition-all",
cond do
percent < 20 -> "bg-red-500"
percent < 40 -> "bg-yellow-500"
true -> "bg-green-500"
end
]}
style={"width: #{percent}%"}
>
</div>
</div>
<span class={[
"text-xs font-medium",
cond do
percent < 20 -> "text-red-600 dark:text-red-400"
percent < 40 -> "text-yellow-600 dark:text-yellow-400"
true -> "text-green-600 dark:text-green-400"
end
]}>
{percent}%
</span>
</div>
<% else %>
<span class="text-gray-400 text-xs">—</span>
<% end %>
</td>
</tr>
<% end %>
</tbody>
</table>
</div>
</div>
<% else %>
<div class="text-center py-12">
<.icon name="hero-printer" class="mx-auto h-12 w-12 text-gray-400 dark:text-gray-600" />
<h3 class="mt-2 text-sm font-medium text-gray-900 dark:text-white">
{t("No printer supplies found")}
</h3>
<p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
{t("No printer supplies detected on this device.")}
</p>
</div>
<% end %>
<% "hardware" -> %>
<%= if @hardware_inventory && length(@hardware_inventory) > 0 do %>
<div class="bg-white dark:bg-gray-800/50 rounded-lg border border-gray-200 dark:border-white/10">
<div class="px-4 py-3 border-b border-gray-200 dark:border-white/10">
<h3 class="text-sm font-semibold text-gray-900 dark:text-white">
{t("Hardware Inventory")}
</h3>
<p class="text-xs text-gray-500 dark:text-gray-400 mt-0.5">
{length(@hardware_inventory)} {if length(@hardware_inventory) == 1,
do: "component",
else: "components"} detected
</p>
</div>
<div class="overflow-x-auto">
<table class="min-w-full divide-y divide-gray-200 dark:divide-white/10">
<thead class="bg-gray-50 dark:bg-gray-800/75">
<tr class="text-xs text-gray-600 dark:text-gray-400">
<th class="px-4 py-3 text-left font-medium">Class</th>
<th class="px-4 py-3 text-left font-medium">Name</th>
<th class="px-4 py-3 text-left font-medium">Description</th>
<th class="px-4 py-3 text-left font-medium">Serial Number</th>
<th class="px-4 py-3 text-left font-medium">Model</th>
<th class="px-4 py-3 text-left font-medium">Manufacturer</th>
</tr>
</thead>
<tbody class="divide-y divide-gray-200 dark:divide-white/10">
<%= for entity <- @hardware_inventory do %>
<tr class="text-sm hover:bg-gray-50 dark:hover:bg-gray-800 transition-colors">
<td class="px-4 py-3">
<span class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-gray-100 text-gray-800 dark:bg-gray-900/30 dark:text-gray-400">
{entity.entity_class || "Unknown"}
</span>
</td>
<td class="px-4 py-3 text-sm font-medium text-gray-900 dark:text-white">
{entity.name || "—"}
</td>
<td class="px-4 py-3 text-sm text-gray-600 dark:text-gray-400">
{entity.description || "—"}
</td>
<td class="px-4 py-3 font-mono text-xs text-gray-600 dark:text-gray-400">
{entity.serial_number || "—"}
</td>
<td class="px-4 py-3 text-sm text-gray-600 dark:text-gray-400">
{entity.model || "—"}
</td>
<td class="px-4 py-3 text-sm text-gray-600 dark:text-gray-400">
{entity.manufacturer || "—"}
</td>
</tr>
<% end %>
</tbody>
</table>
</div>
</div>
<% else %>
<div class="text-center py-12">
<.icon
name="hero-cpu-chip"
class="mx-auto h-12 w-12 text-gray-400 dark:text-gray-600"
/>
<h3 class="mt-2 text-sm font-medium text-gray-900 dark:text-white">
{t("No hardware inventory found")}
</h3>
<p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
{t("No hardware components detected on this device.")}
</p>
</div>
<% end %>
<% "neighbors" -> %>
<%= if @neighbors && length(@neighbors) > 0 do %>
<div class="bg-white dark:bg-gray-800/50 rounded-lg border border-gray-200 dark:border-white/10">

26
priv/repo/migrations/20260326185002_add_printer_supplies.exs Normal file
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@ -0,0 +1,26 @@
defmodule Towerops.Repo.Migrations.AddPrinterSupplies do
use Ecto.Migration
def change do
create table(:printer_supplies, primary_key: false) do
add :id, :binary_id, primary_key: true
add :snmp_device_id, references(:snmp_devices, on_delete: :delete_all, type: :binary_id),
null: false
add :supply_index, :string, null: false
add :supply_type, :string
add :supply_description, :string
add :supply_unit, :string
add :max_capacity, :integer
add :current_level, :integer
add :color_name, :string
add :part_number, :string
timestamps(type: :utc_datetime)
end
create index(:printer_supplies, [:snmp_device_id])
create unique_index(:printer_supplies, [:snmp_device_id, :supply_index])
end
end

35
priv/repo/migrations/20260326221432_create_snmp_entity_physical.exs Normal file
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@ -0,0 +1,35 @@
defmodule Towerops.Repo.Migrations.CreateSnmpEntityPhysical do
use Ecto.Migration
def change do
create table(:snmp_entity_physical, primary_key: false) do
add :id, :binary_id, primary_key: true
add :snmp_device_id, references(:snmp_devices, type: :binary_id, on_delete: :delete_all),
null: false
add :entity_index, :string, null: false
add :parent_index, :string
add :parent_id, references(:snmp_entity_physical, type: :binary_id, on_delete: :nilify_all)
add :entity_class, :string
add :entity_type, :string
add :name, :string
add :description, :text
add :serial_number, :string
add :model, :string
add :manufacturer, :string
add :hardware_revision, :string
add :firmware_revision, :string
add :software_revision, :string
add :physical_index, :integer
timestamps(type: :utc_datetime)
end
create index(:snmp_entity_physical, [:snmp_device_id])
create unique_index(:snmp_entity_physical, [:snmp_device_id, :entity_index])
create index(:snmp_entity_physical, [:parent_id])
create index(:snmp_entity_physical, [:entity_class])
end
end

32
priv/repo/migrations/20260326223000_create_snmp_transceivers.exs Normal file
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@ -0,0 +1,32 @@
defmodule Towerops.Repo.Migrations.CreateSnmpTransceivers do
use Ecto.Migration
def change do
create table(:snmp_transceivers, primary_key: false) do
add :id, :binary_id, primary_key: true
add :snmp_device_id, references(:snmp_devices, type: :binary_id, on_delete: :delete_all),
null: false
add :entity_physical_id,
references(:snmp_entity_physical, type: :binary_id, on_delete: :nilify_all)
add :port_index, :string, null: false
add :transceiver_type, :string
add :vendor_name, :string
add :vendor_part_number, :string
add :vendor_serial_number, :string
add :vendor_revision, :string
add :wavelength_nm, :integer
add :connector_type, :string
add :nominal_bitrate_mbps, :integer
add :supports_dom, :boolean, default: false, null: false
timestamps(type: :utc_datetime)
end
create unique_index(:snmp_transceivers, [:snmp_device_id, :port_index])
create index(:snmp_transceivers, [:entity_physical_id])
create index(:snmp_transceivers, [:transceiver_type])
end
end

25
priv/repo/migrations/20260326223100_create_snmp_transceiver_readings.exs Normal file
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@ -0,0 +1,25 @@
defmodule Towerops.Repo.Migrations.CreateSnmpTransceiverReadings do
use Ecto.Migration
def change do
create table(:snmp_transceiver_readings, primary_key: false) do
add :id, :binary_id, primary_key: true
add :transceiver_id,
references(:snmp_transceivers, type: :binary_id, on_delete: :delete_all), null: false
add :rx_power_dbm, :float
add :tx_power_dbm, :float
add :bias_current_ma, :float
add :temperature_celsius, :float
add :voltage_v, :float
add :measured_at, :utc_datetime, null: false
timestamps(type: :utc_datetime)
end
create index(:snmp_transceiver_readings, [:transceiver_id])
create index(:snmp_transceiver_readings, [:measured_at])
create index(:snmp_transceiver_readings, [:transceiver_id, :measured_at])
end
end

21
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@ -0,0 +1,21 @@
defmodule Towerops.Repo.Migrations.CreateSnmpEntityPhysicalReadings do
use Ecto.Migration
def change do
create table(:snmp_entity_physical_readings, primary_key: false) do
add :id, :binary_id, primary_key: true
add :entity_physical_id,
references(:snmp_entity_physical, on_delete: :delete_all, type: :binary_id), null: false
add :operational_status, :string
add :admin_status, :string
add :measured_at, :utc_datetime, null: false
timestamps(type: :utc_datetime)
end
create index(:snmp_entity_physical_readings, [:entity_physical_id, :measured_at])
create index(:snmp_entity_physical_readings, [:measured_at])
end
end

24
priv/static/changelog.txt
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@ -1,8 +1,32 @@
2026-03-26 — Enhanced Hardware Inventory
* Added optical transceiver monitoring for network equipment with SFP/QSFP modules
* New Transceivers tab on device pages shows all installed SFP/QSFP modules
* Displays transceiver type, vendor information, part numbers, and serial numbers
* Identifies modules with Digital Optical Monitoring (DOM) capability
* Tracks optical power levels, temperature, voltage, and bias current for installed transceivers
* Enables proactive monitoring of fiber optic link health and quality
2026-03-26 — Printer Consumables Tracking
* Added printer supply monitoring for network printers and multi-function devices
* New Printer Supplies tab shows all consumables (toner, ink, drums, fuser units)
* Color-coded level indicators with percentage bars (green/yellow/red)
* Tracks toner, ink, drum, and other consumable levels
* Displays current capacity and remaining percentage for each supply
* Helps prevent downtime from unexpected supply depletion
2026-03-26 — Memory Monitoring
* Added memory pool monitoring for SNMP-enabled devices
* Tracks RAM and swap memory usage with historical data
* Displays memory utilization percentages and available capacity
2026-03-26 — Hardware Inventory
* Added complete hardware inventory view for network devices
* New Hardware Inventory tab shows all physical components discovered via SNMP
* Displays component class (chassis, module, port, power supply, fan, etc.)
* Shows component details including name, description, serial number, model, and manufacturer
* Enables tracking of all physical hardware components in monitored devices
* Helps with asset management and hardware lifecycle planning
2026-03-25 — Bug Fixes
* Fixed ping monitoring not working for devices with SNMP disabled but monitoring enabled
* Neighbors tab now hidden for devices with SNMP disabled (since neighbor discovery requires SNMP)

174
test/support/fixtures/snmp_fixtures.ex
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@ -24,6 +24,9 @@ defmodule Towerops.SnmpFixtures do
%Snmp.Device{sys_name: "router1", ...}
"""
def snmp_device_fixture(attrs \\ %{}) do
# Convert keyword list to map if needed
attrs = if is_list(attrs), do: Map.new(attrs), else: attrs
# Handle device creation or lookup
device =
cond do
@ -167,6 +170,177 @@ defmodule Towerops.SnmpFixtures do
wireless_client_fixture(Map.merge(attrs, %{device_id: device_id, organization_id: organization_id}))
end
@doc """
Generate an entity physical with all required fields.
## Options
- `:snmp_device` - Existing SNMP device to attach entity to
- `:snmp_device_id` - ID of SNMP device to attach entity to
- All other EntityPhysical fields (entity_index, entity_class, etc.)
## Examples
iex> entity_physical_fixture()
%EntityPhysical{entity_index: "1", ...}
iex> entity_physical_fixture(%{entity_class: "chassis"})
%EntityPhysical{entity_class: "chassis", ...}
"""
def entity_physical_fixture(attrs \\ %{}) do
# Convert keyword list to map if needed
attrs = if is_list(attrs), do: Map.new(attrs), else: attrs
# Handle SNMP device creation or lookup
snmp_device =
cond do
attrs[:snmp_device] -> attrs[:snmp_device]
attrs[:snmp_device_id] -> Towerops.Repo.get!(Snmp.Device, attrs[:snmp_device_id])
true -> snmp_device_fixture()
end
# Default entity physical attributes
default_attrs = %{
snmp_device_id: snmp_device.id,
entity_index: "#{System.unique_integer([:positive])}",
entity_class: "other",
name: "Entity #{System.unique_integer([:positive])}"
}
# Merge with provided attrs
merged_attrs =
Map.merge(
default_attrs,
attrs
|> Map.drop([:snmp_device, "snmp_device"])
|> Map.new(fn {k, v} -> {to_atom_key(k), v} end)
)
{:ok, entity_physical} =
%Snmp.EntityPhysical{}
|> Snmp.EntityPhysical.changeset(merged_attrs)
|> Towerops.Repo.insert()
entity_physical
end
@doc """
Generate a transceiver with all required fields.
## Options
- `:snmp_device` - Existing SNMP device to attach transceiver to
- `:snmp_device_id` - ID of SNMP device to attach transceiver to
- `:entity_physical` - Existing entity physical to link transceiver to
- `:entity_physical_id` - ID of entity physical to link transceiver to
- All other Transceiver fields (port_index, transceiver_type, vendor_name, etc.)
## Examples
iex> transceiver_fixture()
%Transceiver{port_index: "1", ...}
iex> transceiver_fixture(%{transceiver_type: "SFP+"})
%Transceiver{transceiver_type: "SFP+", ...}
"""
def transceiver_fixture(attrs \\ %{}) do
# Convert keyword list to map if needed
attrs = if is_list(attrs), do: Map.new(attrs), else: attrs
# Handle SNMP device creation or lookup
snmp_device =
cond do
attrs[:snmp_device] -> attrs[:snmp_device]
attrs[:snmp_device_id] -> Towerops.Repo.get!(Snmp.Device, attrs[:snmp_device_id])
true -> snmp_device_fixture()
end
# Handle entity physical lookup if provided
entity_physical_id =
cond do
attrs[:entity_physical] -> attrs[:entity_physical].id
attrs[:entity_physical_id] -> attrs[:entity_physical_id]
true -> nil
end
# Default transceiver attributes
default_attrs = %{
snmp_device_id: snmp_device.id,
entity_physical_id: entity_physical_id,
port_index: "#{System.unique_integer([:positive])}",
transceiver_type: "SFP",
vendor_name: "Test Vendor",
vendor_part_number: "TEST-SFP-1G",
vendor_serial_number: "SN#{System.unique_integer([:positive])}",
supports_dom: true
}
# Merge with provided attrs
merged_attrs =
Map.merge(
default_attrs,
attrs
|> Map.drop([:snmp_device, :entity_physical, "snmp_device", "entity_physical"])
|> Map.new(fn {k, v} -> {to_atom_key(k), v} end)
)
{:ok, transceiver} =
%Snmp.Transceiver{}
|> Snmp.Transceiver.changeset(merged_attrs)
|> Towerops.Repo.insert()
transceiver
end
@doc """
Generate a transceiver reading with all required fields.
## Options
- `:transceiver` - Existing transceiver to attach reading to
- `:transceiver_id` - ID of transceiver to attach reading to
- All other TransceiverReading fields (rx_power_dbm, tx_power_dbm, etc.)
## Examples
iex> transceiver_reading_fixture()
%TransceiverReading{rx_power_dbm: -5.0, ...}
iex> transceiver_reading_fixture(%{tx_power_dbm: -3.2})
%TransceiverReading{tx_power_dbm: -3.2, ...}
"""
def transceiver_reading_fixture(attrs \\ %{}) do
# Convert keyword list to map if needed
attrs = if is_list(attrs), do: Map.new(attrs), else: attrs
# Handle transceiver creation or lookup
transceiver =
cond do
attrs[:transceiver] -> attrs[:transceiver]
attrs[:transceiver_id] -> Towerops.Repo.get!(Snmp.Transceiver, attrs[:transceiver_id])
true -> transceiver_fixture()
end
# Default reading attributes
default_attrs = %{
transceiver_id: transceiver.id,
measured_at: DateTime.truncate(DateTime.utc_now(), :second)
}
# Merge with provided attrs
merged_attrs =
Map.merge(
default_attrs,
attrs
|> Map.drop([:transceiver, "transceiver"])
|> Map.new(fn {k, v} -> {to_atom_key(k), v} end)
)
{:ok, reading} =
%Snmp.TransceiverReading{}
|> Snmp.TransceiverReading.changeset(merged_attrs)
|> Towerops.Repo.insert()
reading
end
defp create_device_with_organization(attrs) do
case {attrs[:device_id], attrs[:organization_id]} do
{device_id, _} when not is_nil(device_id) ->

140
test/towerops/snmp/discovery/entity_physical_discovery_test.exs Normal file
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@ -0,0 +1,140 @@
defmodule Towerops.Snmp.Discovery.EntityPhysicalDiscoveryTest do
use Towerops.DataCase, async: true
import Towerops.DevicesFixtures
import Towerops.SnmpFixtures
alias Towerops.Snmp
alias Towerops.Snmp.Discovery
describe "sync_entity_physical/2" do
test "creates new entity physical entries from discovery data" do
device = device_fixture()
snmp_device = snmp_device_fixture(device: device)
discovered_entities = [
%{
entity_index: "1",
parent_index: "0",
entity_class: "chassis",
name: "Chassis 1",
description: "Main Chassis",
serial_number: "SN123456",
model: "Model-X",
manufacturer: "Cisco"
},
%{
entity_index: "2",
parent_index: "1",
entity_class: "module",
name: "Module 1/1",
description: "Gigabit Ethernet Module"
}
]
{:ok, synced} = Discovery.sync_entity_physical(snmp_device, discovered_entities)
assert length(synced) == 2
entities = Snmp.list_entity_physical(snmp_device.id)
assert length(entities) == 2
chassis = Enum.find(entities, &(&1.entity_index == "1"))
assert chassis.entity_class == "chassis"
assert chassis.name == "Chassis 1"
assert chassis.serial_number == "SN123456"
module = Enum.find(entities, &(&1.entity_index == "2"))
assert module.entity_class == "module"
assert module.parent_index == "1"
end
test "updates existing entity physical entries" do
device = device_fixture()
snmp_device = snmp_device_fixture(device: device)
existing =
entity_physical_fixture(
snmp_device: snmp_device,
entity_index: "1",
name: "Old Name",
serial_number: "OLD123"
)
discovered_entities = [
%{
entity_index: "1",
name: "New Name",
serial_number: "NEW456",
entity_class: "chassis"
}
]
{:ok, _synced} = Discovery.sync_entity_physical(snmp_device, discovered_entities)
updated = Repo.get(Snmp.EntityPhysical, existing.id)
assert updated.name == "New Name"
assert updated.serial_number == "NEW456"
assert updated.entity_class == "chassis"
end
test "deletes entity physical entries not in discovery data" do
device = device_fixture()
snmp_device = snmp_device_fixture(device: device)
# Create 3 entities
entity_physical_fixture(snmp_device: snmp_device, entity_index: "1")
entity_physical_fixture(snmp_device: snmp_device, entity_index: "2")
entity_physical_fixture(snmp_device: snmp_device, entity_index: "3")
# Only return 2 in discovery
discovered_entities = [
%{entity_index: "1", entity_class: "chassis"},
%{entity_index: "2", entity_class: "module"}
]
{:ok, _synced} = Discovery.sync_entity_physical(snmp_device, discovered_entities)
entities = Snmp.list_entity_physical(snmp_device.id)
assert length(entities) == 2
assert Enum.all?(entities, fn e -> e.entity_index in ["1", "2"] end)
end
test "handles empty discovery data by deleting all entities" do
device = device_fixture()
snmp_device = snmp_device_fixture(device: device)
entity_physical_fixture(snmp_device: snmp_device, entity_index: "1")
entity_physical_fixture(snmp_device: snmp_device, entity_index: "2")
{:ok, synced} = Discovery.sync_entity_physical(snmp_device, [])
assert synced == []
assert Snmp.list_entity_physical(snmp_device.id) == []
end
test "resolves parent_id from parent_index after all entities created" do
device = device_fixture()
snmp_device = snmp_device_fixture(device: device)
discovered_entities = [
%{entity_index: "1", entity_class: "chassis", parent_index: "0"},
%{entity_index: "2", entity_class: "module", parent_index: "1"},
%{entity_index: "3", entity_class: "port", parent_index: "2"}
]
{:ok, _synced} = Discovery.sync_entity_physical(snmp_device, discovered_entities)
entities = snmp_device.id |> Snmp.list_entity_physical() |> Repo.preload(:parent)
chassis = Enum.find(entities, &(&1.entity_index == "1"))
assert chassis.parent_id == nil
module = Enum.find(entities, &(&1.entity_index == "2"))
assert module.parent_id == chassis.id
port = Enum.find(entities, &(&1.entity_index == "3"))
assert port.parent_id == module.id
end
end
end

207
test/towerops/snmp/discovery/printer_supply_sync_test.exs Normal file
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@ -0,0 +1,207 @@
defmodule Towerops.Snmp.Discovery.PrinterSupplySyncTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Repo
alias Towerops.Snmp.Discovery
alias Towerops.Snmp.PrinterSupply
describe "sync_printer_supplies/2" do
test "creates new printer supplies from discovered data" do
snmp_device = snmp_device_fixture()
discovered_supplies = [
%{
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner",
max_capacity: 10_000,
current_level: 7500
},
%{
supply_index: "2",
supply_type: "toner",
supply_description: "Cyan Toner",
max_capacity: 10_000,
current_level: 8500
}
]
assert :ok = Discovery.sync_printer_supplies(snmp_device, discovered_supplies)
supplies = Repo.all(from s in PrinterSupply, where: s.snmp_device_id == ^snmp_device.id)
assert length(supplies) == 2
black = Enum.find(supplies, &(&1.supply_index == "1"))
assert black.supply_type == "toner"
assert black.supply_description == "Black Toner"
assert black.max_capacity == 10_000
assert black.current_level == 7500
end
test "updates existing printer supplies when attributes change" do
snmp_device = snmp_device_fixture()
{:ok, existing_supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner",
max_capacity: 10_000,
current_level: 10_000
})
|> Repo.insert()
discovered_supplies = [
%{
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner Cartridge",
# Updated description
max_capacity: 10_000,
current_level: 5000
# Updated level
}
]
assert :ok = Discovery.sync_printer_supplies(snmp_device, discovered_supplies)
updated_supply = Repo.get(PrinterSupply, existing_supply.id)
assert updated_supply.supply_description == "Black Toner Cartridge"
assert updated_supply.current_level == 5000
# ID should remain the same
assert updated_supply.id == existing_supply.id
end
test "deletes printer supplies that are no longer discovered" do
snmp_device = snmp_device_fixture()
# Create three existing supplies
{:ok, supply1} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black"
})
|> Repo.insert()
{:ok, _supply2} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "2",
supply_type: "toner",
supply_description: "Cyan"
})
|> Repo.insert()
{:ok, _supply3} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "3",
supply_type: "toner",
supply_description: "Magenta"
})
|> Repo.insert()
# Only discover supply 1 - supplies 2 and 3 should be deleted
discovered_supplies = [
%{supply_index: "1", supply_type: "toner", supply_description: "Black"}
]
assert :ok = Discovery.sync_printer_supplies(snmp_device, discovered_supplies)
supplies = Repo.all(from s in PrinterSupply, where: s.snmp_device_id == ^snmp_device.id)
assert length(supplies) == 1
assert hd(supplies).id == supply1.id
end
test "handles empty discovered list by deleting all supplies" do
snmp_device = snmp_device_fixture()
{:ok, _supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black"
})
|> Repo.insert()
assert :ok = Discovery.sync_printer_supplies(snmp_device, [])
supplies = Repo.all(from s in PrinterSupply, where: s.snmp_device_id == ^snmp_device.id)
assert supplies == []
end
test "isolates supplies by device" do
device1 = snmp_device_fixture()
device2 = snmp_device_fixture()
# Device 1 has supply index "1"
{:ok, _supply1} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: device1.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Device 1 Supply"
})
|> Repo.insert()
# Device 2 has supply index "1" (same index, different device)
{:ok, supply2} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: device2.id,
supply_index: "1",
supply_type: "ink",
supply_description: "Device 2 Supply"
})
|> Repo.insert()
# Sync device 1 with empty list - should not affect device 2
assert :ok = Discovery.sync_printer_supplies(device1, [])
device1_supplies = Repo.all(from s in PrinterSupply, where: s.snmp_device_id == ^device1.id)
device2_supplies = Repo.all(from s in PrinterSupply, where: s.snmp_device_id == ^device2.id)
assert device1_supplies == []
assert length(device2_supplies) == 1
assert hd(device2_supplies).id == supply2.id
end
test "preserves supply IDs when updating" do
snmp_device = snmp_device_fixture()
{:ok, original_supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Original"
})
|> Repo.insert()
discovered_supplies = [
%{supply_index: "1", supply_type: "toner", supply_description: "Updated"}
]
assert :ok = Discovery.sync_printer_supplies(snmp_device, discovered_supplies)
updated_supply = Repo.get(PrinterSupply, original_supply.id)
assert updated_supply
assert updated_supply.supply_description == "Updated"
# ID should not change
assert updated_supply.id == original_supply.id
end
end
end

168
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defmodule Towerops.Snmp.Discovery.TransceiverSyncTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Repo
alias Towerops.Snmp
alias Towerops.Snmp.Discovery
alias Towerops.Snmp.Transceiver
describe "sync_transceivers/2" do
test "creates new transceivers from discovered data" do
snmp_device = snmp_device_fixture()
discovered_transceivers = [
%{
port_index: "1001",
transceiver_type: "SFP",
vendor_name: "Cisco",
vendor_part_number: "GLC-LH-SMD",
vendor_serial_number: "ABC123",
supports_dom: true
},
%{
port_index: "1002",
transceiver_type: "SFP+",
vendor_name: "Finisar",
vendor_part_number: "FTLX8571D3BCL",
vendor_serial_number: "XYZ789",
supports_dom: true
}
]
{:ok, synced} = Discovery.sync_transceivers(snmp_device, discovered_transceivers)
assert length(synced) == 2
transceivers = Snmp.list_transceivers(snmp_device.id)
assert length(transceivers) == 2
sfp = Enum.find(transceivers, &(&1.port_index == "1001"))
assert sfp.transceiver_type == "SFP"
assert sfp.vendor_name == "Cisco"
assert sfp.vendor_part_number == "GLC-LH-SMD"
sfp_plus = Enum.find(transceivers, &(&1.port_index == "1002"))
assert sfp_plus.transceiver_type == "SFP+"
assert sfp_plus.vendor_name == "Finisar"
end
test "updates existing transceivers with new data" do
snmp_device = snmp_device_fixture()
# Create existing transceiver
existing =
transceiver_fixture(
snmp_device: snmp_device,
port_index: "1001",
transceiver_type: "SFP",
vendor_name: "Old Vendor"
)
# Discover updated data
discovered_transceivers = [
%{
port_index: "1001",
transceiver_type: "SFP+",
vendor_name: "New Vendor",
vendor_part_number: "NEW-MODEL",
vendor_serial_number: "NEW-SN",
supports_dom: true
}
]
{:ok, _synced} = Discovery.sync_transceivers(snmp_device, discovered_transceivers)
updated = Repo.get!(Transceiver, existing.id)
assert updated.transceiver_type == "SFP+"
assert updated.vendor_name == "New Vendor"
assert updated.vendor_part_number == "NEW-MODEL"
assert updated.vendor_serial_number == "NEW-SN"
end
test "deletes transceivers that no longer exist on device" do
snmp_device = snmp_device_fixture()
# Create existing transceivers
_removed1 = transceiver_fixture(snmp_device: snmp_device, port_index: "1001")
_removed2 = transceiver_fixture(snmp_device: snmp_device, port_index: "1002")
kept = transceiver_fixture(snmp_device: snmp_device, port_index: "1003")
# Discover only one transceiver
discovered_transceivers = [
%{
port_index: "1003",
transceiver_type: "SFP",
vendor_name: "Cisco",
supports_dom: true
}
]
{:ok, _synced} = Discovery.sync_transceivers(snmp_device, discovered_transceivers)
transceivers = Snmp.list_transceivers(snmp_device.id)
assert length(transceivers) == 1
assert hd(transceivers).id == kept.id
end
test "handles empty discovery results" do
snmp_device = snmp_device_fixture()
# Create existing transceivers
_existing1 = transceiver_fixture(snmp_device: snmp_device, port_index: "1001")
_existing2 = transceiver_fixture(snmp_device: snmp_device, port_index: "1002")
# Discover no transceivers
discovered_transceivers = []
{:ok, _synced} = Discovery.sync_transceivers(snmp_device, discovered_transceivers)
# All transceivers should be deleted
transceivers = Snmp.list_transceivers(snmp_device.id)
assert transceivers == []
end
test "does not affect transceivers on other devices" do
snmp_device1 = snmp_device_fixture()
snmp_device2 = snmp_device_fixture()
# Create transceivers on both devices
_device1_transceiver = transceiver_fixture(snmp_device: snmp_device1, port_index: "1001")
device2_transceiver = transceiver_fixture(snmp_device: snmp_device2, port_index: "2001")
# Sync device1 with empty discovery
{:ok, _synced} = Discovery.sync_transceivers(snmp_device1, [])
# Device1 should have no transceivers
assert Snmp.list_transceivers(snmp_device1.id) == []
# Device2 should still have its transceiver
device2_transceivers = Snmp.list_transceivers(snmp_device2.id)
assert length(device2_transceivers) == 1
assert hd(device2_transceivers).id == device2_transceiver.id
end
test "preserves optional fields as nil when not discovered" do
snmp_device = snmp_device_fixture()
discovered_transceivers = [
%{
port_index: "1001",
transceiver_type: "SFP",
supports_dom: false
}
]
{:ok, _synced} = Discovery.sync_transceivers(snmp_device, discovered_transceivers)
transceivers = Snmp.list_transceivers(snmp_device.id)
assert length(transceivers) == 1
transceiver = hd(transceivers)
assert is_nil(transceiver.vendor_name)
assert is_nil(transceiver.vendor_part_number)
assert is_nil(transceiver.vendor_serial_number)
end
end
end

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defmodule Towerops.Snmp.EntityPhysicalContextTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Snmp
describe "get_entity_physical/1" do
test "returns entity physical by id" do
snmp_device = snmp_device_fixture()
entity = entity_physical_fixture(snmp_device: snmp_device, name: "Test Entity")
assert {:ok, fetched} = Snmp.get_entity_physical(entity.id)
assert fetched.id == entity.id
assert fetched.name == "Test Entity"
end
test "returns error when entity not found" do
assert {:error, :not_found} = Snmp.get_entity_physical(Ecto.UUID.generate())
end
end
describe "get_entity_physical_tree/1" do
test "returns hierarchical tree structure for a device" do
snmp_device = snmp_device_fixture()
# Create hierarchy: chassis -> module -> port
chassis =
entity_physical_fixture(snmp_device: snmp_device, entity_index: "1", entity_class: "chassis", name: "Chassis 1")
module =
entity_physical_fixture(
snmp_device: snmp_device,
entity_index: "2",
entity_class: "module",
name: "Module 1",
parent_id: chassis.id
)
port =
entity_physical_fixture(
snmp_device: snmp_device,
entity_index: "3",
entity_class: "port",
name: "Port 1",
parent_id: module.id
)
tree = Snmp.get_entity_physical_tree(snmp_device.id)
assert length(tree) == 1
assert [root] = tree
assert root.id == chassis.id
assert root.name == "Chassis 1"
assert length(root.children) == 1
assert [child_module] = root.children
assert child_module.id == module.id
assert child_module.name == "Module 1"
assert length(child_module.children) == 1
assert [child_port] = child_module.children
assert child_port.id == port.id
assert child_port.name == "Port 1"
assert child_port.children == []
end
test "handles multiple root entities" do
snmp_device = snmp_device_fixture()
chassis1 = entity_physical_fixture(snmp_device: snmp_device, entity_index: "1", entity_class: "chassis")
chassis2 = entity_physical_fixture(snmp_device: snmp_device, entity_index: "2", entity_class: "chassis")
tree = Snmp.get_entity_physical_tree(snmp_device.id)
assert length(tree) == 2
chassis_ids = Enum.map(tree, & &1.id)
assert chassis1.id in chassis_ids
assert chassis2.id in chassis_ids
end
test "returns empty list when no entities" do
snmp_device = snmp_device_fixture()
assert Snmp.get_entity_physical_tree(snmp_device.id) == []
end
end
describe "get_entity_physical_by_class/2" do
test "returns entities filtered by class" do
snmp_device = snmp_device_fixture()
chassis = entity_physical_fixture(snmp_device: snmp_device, entity_class: "chassis", name: "Chassis")
module1 = entity_physical_fixture(snmp_device: snmp_device, entity_class: "module", name: "Module 1")
module2 = entity_physical_fixture(snmp_device: snmp_device, entity_class: "module", name: "Module 2")
_port = entity_physical_fixture(snmp_device: snmp_device, entity_class: "port", name: "Port")
modules = Snmp.get_entity_physical_by_class(snmp_device.id, "module")
assert length(modules) == 2
module_ids = Enum.map(modules, & &1.id)
assert module1.id in module_ids
assert module2.id in module_ids
refute chassis.id in module_ids
end
test "returns empty list when no entities match class" do
snmp_device = snmp_device_fixture()
entity_physical_fixture(snmp_device: snmp_device, entity_class: "chassis")
assert Snmp.get_entity_physical_by_class(snmp_device.id, "powerSupply") == []
end
end
describe "update_entity_physical/2" do
test "updates entity physical with valid attributes" do
snmp_device = snmp_device_fixture()
entity = entity_physical_fixture(snmp_device: snmp_device, name: "Old Name")
assert {:ok, updated} = Snmp.update_entity_physical(entity, %{name: "New Name", serial_number: "SN123"})
assert updated.name == "New Name"
assert updated.serial_number == "SN123"
end
test "returns error with invalid attributes" do
snmp_device = snmp_device_fixture()
entity = entity_physical_fixture(snmp_device: snmp_device)
assert {:error, changeset} = Snmp.update_entity_physical(entity, %{entity_class: "invalid_class"})
refute changeset.valid?
end
end
end

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defmodule Towerops.Snmp.EntityPhysicalReadingTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Repo
alias Towerops.Snmp.EntityPhysical
alias Towerops.Snmp.EntityPhysicalReading
describe "changeset/2" do
test "validates required fields" do
changeset = EntityPhysicalReading.changeset(%EntityPhysicalReading{}, %{})
refute changeset.valid?
assert "can't be blank" in errors_on(changeset).entity_physical_id
assert "can't be blank" in errors_on(changeset).measured_at
end
test "accepts valid attributes" do
snmp_device = snmp_device_fixture()
{:ok, entity} =
%EntityPhysical{}
|> EntityPhysical.changeset(%{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "powerSupply",
name: "PS1"
})
|> Repo.insert()
attrs = %{
entity_physical_id: entity.id,
operational_status: "up",
admin_status: "unlocked",
measured_at: DateTime.utc_now()
}
changeset = EntityPhysicalReading.changeset(%EntityPhysicalReading{}, attrs)
assert changeset.valid?
end
test "validates operational_status is a known value" do
snmp_device = snmp_device_fixture()
{:ok, entity} =
%EntityPhysical{}
|> EntityPhysical.changeset(%{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "fan",
name: "Fan1"
})
|> Repo.insert()
# Valid statuses: up, down, testing, unknown, dormant, notPresent, lowerLayerDown
valid_statuses = [
"up",
"down",
"testing",
"unknown",
"dormant",
"notPresent",
"lowerLayerDown"
]
for status <- valid_statuses do
changeset =
EntityPhysicalReading.changeset(%EntityPhysicalReading{}, %{
entity_physical_id: entity.id,
operational_status: status,
measured_at: DateTime.utc_now()
})
assert changeset.valid?, "Status #{status} should be valid"
end
end
test "validates admin_status is a known value" do
snmp_device = snmp_device_fixture()
{:ok, entity} =
%EntityPhysical{}
|> EntityPhysical.changeset(%{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "module",
name: "Module1"
})
|> Repo.insert()
# Valid statuses: locked, unlocked, shuttingDown, unknown
valid_statuses = ["locked", "unlocked", "shuttingDown", "unknown"]
for status <- valid_statuses do
changeset =
EntityPhysicalReading.changeset(%EntityPhysicalReading{}, %{
entity_physical_id: entity.id,
admin_status: status,
measured_at: DateTime.utc_now()
})
assert changeset.valid?, "Status #{status} should be valid"
end
end
test "allows nil for optional status fields" do
snmp_device = snmp_device_fixture()
{:ok, entity} =
%EntityPhysical{}
|> EntityPhysical.changeset(%{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "chassis",
name: "Chassis1"
})
|> Repo.insert()
attrs = %{
entity_physical_id: entity.id,
measured_at: DateTime.utc_now()
}
changeset = EntityPhysicalReading.changeset(%EntityPhysicalReading{}, attrs)
assert changeset.valid?
end
test "casts measured_at to DateTime" do
snmp_device = snmp_device_fixture()
{:ok, entity} =
%EntityPhysical{}
|> EntityPhysical.changeset(%{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "sensor",
name: "Temp1"
})
|> Repo.insert()
now = DateTime.truncate(DateTime.utc_now(), :second)
attrs = %{
entity_physical_id: entity.id,
operational_status: "up",
measured_at: now
}
changeset = EntityPhysicalReading.changeset(%EntityPhysicalReading{}, attrs)
assert changeset.valid?
assert Ecto.Changeset.get_field(changeset, :measured_at) == now
end
end
describe "database constraints" do
test "requires entity_physical_id foreign key to exist" do
attrs = %{
entity_physical_id: Ecto.UUID.generate(),
operational_status: "up",
measured_at: DateTime.utc_now()
}
assert {:error, changeset} =
%EntityPhysicalReading{}
|> EntityPhysicalReading.changeset(attrs)
|> Repo.insert()
assert "does not exist" in errors_on(changeset).entity_physical_id
end
test "cascades delete when entity_physical is deleted" do
snmp_device = snmp_device_fixture()
{:ok, entity} =
%EntityPhysical{}
|> EntityPhysical.changeset(%{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "powerSupply",
name: "PS1"
})
|> Repo.insert()
{:ok, reading} =
%EntityPhysicalReading{}
|> EntityPhysicalReading.changeset(%{
entity_physical_id: entity.id,
operational_status: "up",
measured_at: DateTime.utc_now()
})
|> Repo.insert()
# Delete entity
Repo.delete!(entity)
# Reading should be deleted
assert is_nil(Repo.get(EntityPhysicalReading, reading.id))
end
end
describe "querying" do
test "can query readings by entity_physical_id" do
snmp_device = snmp_device_fixture()
{:ok, entity} =
%EntityPhysical{}
|> EntityPhysical.changeset(%{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "fan",
name: "Fan1"
})
|> Repo.insert()
{:ok, _reading1} =
%EntityPhysicalReading{}
|> EntityPhysicalReading.changeset(%{
entity_physical_id: entity.id,
operational_status: "up",
measured_at: DateTime.add(DateTime.utc_now(), -3600, :second)
})
|> Repo.insert()
{:ok, reading2} =
%EntityPhysicalReading{}
|> EntityPhysicalReading.changeset(%{
entity_physical_id: entity.id,
operational_status: "down",
measured_at: DateTime.utc_now()
})
|> Repo.insert()
readings =
EntityPhysicalReading
|> where([r], r.entity_physical_id == ^entity.id)
|> order_by([r], desc: r.measured_at)
|> Repo.all()
assert length(readings) == 2
assert hd(readings).id == reading2.id
end
end
end

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defmodule Towerops.Snmp.EntityPhysicalTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Snmp.EntityPhysical
describe "changeset/2" do
test "valid changeset with all fields" do
snmp_device = snmp_device_fixture()
attrs = %{
snmp_device_id: snmp_device.id,
entity_index: "1",
parent_index: "0",
entity_class: "chassis",
entity_type: "switch",
name: "Chassis 1",
description: "Main Chassis",
serial_number: "ABC123",
model: "Model-X",
manufacturer: "Cisco",
hardware_revision: "1.0",
firmware_revision: "2.3.4",
software_revision: "12.2(55)SE",
physical_index: 1
}
changeset = EntityPhysical.changeset(%EntityPhysical{}, attrs)
assert changeset.valid?
end
test "requires snmp_device_id" do
attrs = %{entity_index: "1"}
changeset = EntityPhysical.changeset(%EntityPhysical{}, attrs)
refute changeset.valid?
assert "can't be blank" in errors_on(changeset).snmp_device_id
end
test "requires entity_index" do
snmp_device = snmp_device_fixture()
attrs = %{snmp_device_id: snmp_device.id}
changeset = EntityPhysical.changeset(%EntityPhysical{}, attrs)
refute changeset.valid?
assert "can't be blank" in errors_on(changeset).entity_index
end
test "validates entity_class is in allowed list" do
snmp_device = snmp_device_fixture()
valid_classes = [
"other",
"unknown",
"chassis",
"backplane",
"container",
"powerSupply",
"fan",
"sensor",
"module",
"port",
"stack"
]
for class <- valid_classes do
attrs = %{snmp_device_id: snmp_device.id, entity_index: "1", entity_class: class}
changeset = EntityPhysical.changeset(%EntityPhysical{}, attrs)
assert changeset.valid?, "Expected #{class} to be valid"
end
invalid_attrs = %{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "invalid_class"
}
changeset = EntityPhysical.changeset(%EntityPhysical{}, invalid_attrs)
refute changeset.valid?
assert "is invalid" in errors_on(changeset).entity_class
end
test "allows nil for optional fields" do
snmp_device = snmp_device_fixture()
attrs = %{
snmp_device_id: snmp_device.id,
entity_index: "1"
}
changeset = EntityPhysical.changeset(%EntityPhysical{}, attrs)
assert changeset.valid?
end
test "accepts parent_id for self-referencing hierarchy" do
snmp_device = snmp_device_fixture()
parent = entity_physical_fixture(snmp_device: snmp_device, entity_index: "1")
attrs = %{
snmp_device_id: snmp_device.id,
entity_index: "2",
parent_id: parent.id
}
changeset = EntityPhysical.changeset(%EntityPhysical{}, attrs)
assert changeset.valid?
end
end
describe "database operations" do
test "creates entity physical successfully" do
snmp_device = snmp_device_fixture()
attrs = %{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "chassis",
name: "Main Chassis"
}
{:ok, entity} =
%EntityPhysical{}
|> EntityPhysical.changeset(attrs)
|> Repo.insert()
assert entity.entity_index == "1"
assert entity.entity_class == "chassis"
assert entity.name == "Main Chassis"
end
test "enforces unique constraint on snmp_device_id and entity_index" do
snmp_device = snmp_device_fixture()
attrs = %{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "chassis"
}
{:ok, _entity1} =
%EntityPhysical{}
|> EntityPhysical.changeset(attrs)
|> Repo.insert()
{:error, changeset} =
%EntityPhysical{}
|> EntityPhysical.changeset(attrs)
|> Repo.insert()
# Composite unique constraint error is reported on first field
assert "has already been taken" in errors_on(changeset).snmp_device_id
end
test "enforces foreign key constraint on snmp_device_id" do
attrs = %{
snmp_device_id: Ecto.UUID.generate(),
entity_index: "1"
}
assert_raise Ecto.InvalidChangesetError, fn ->
%EntityPhysical{}
|> EntityPhysical.changeset(attrs)
|> Repo.insert!()
end
end
test "cascades delete when snmp_device is deleted" do
snmp_device = snmp_device_fixture()
entity = entity_physical_fixture(snmp_device: snmp_device)
Repo.delete!(snmp_device)
assert Repo.get(EntityPhysical, entity.id) == nil
end
end
describe "hierarchical relationships" do
test "can query parent entity" do
snmp_device = snmp_device_fixture()
parent = entity_physical_fixture(snmp_device: snmp_device, entity_index: "1")
child = entity_physical_fixture(snmp_device: snmp_device, entity_index: "2", parent_id: parent.id)
loaded_child = Repo.preload(child, :parent)
assert loaded_child.parent.id == parent.id
end
test "can query children entities" do
snmp_device = snmp_device_fixture()
parent = entity_physical_fixture(snmp_device: snmp_device, entity_index: "1")
child1 = entity_physical_fixture(snmp_device: snmp_device, entity_index: "2", parent_id: parent.id)
child2 = entity_physical_fixture(snmp_device: snmp_device, entity_index: "3", parent_id: parent.id)
loaded_parent = Repo.preload(parent, :children)
child_ids = Enum.map(loaded_parent.children, & &1.id)
assert child1.id in child_ids
assert child2.id in child_ids
assert length(loaded_parent.children) == 2
end
end
end

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defmodule Towerops.Snmp.PrinterSupplyContextTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Repo
alias Towerops.Snmp
alias Towerops.Snmp.PrinterSupply
describe "list_printer_supplies/1" do
test "returns all printer supplies for a device" do
snmp_device = snmp_device_fixture()
{:ok, supply1} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner"
})
|> Repo.insert()
{:ok, supply2} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "2",
supply_type: "ink",
supply_description: "Cyan Ink"
})
|> Repo.insert()
supplies = Snmp.list_printer_supplies(snmp_device.id)
assert length(supplies) == 2
assert supply1.id in Enum.map(supplies, & &1.id)
assert supply2.id in Enum.map(supplies, & &1.id)
end
test "returns empty list when device has no supplies" do
snmp_device = snmp_device_fixture()
supplies = Snmp.list_printer_supplies(snmp_device.id)
assert supplies == []
end
test "isolates supplies by device" do
device1 = snmp_device_fixture()
device2 = snmp_device_fixture()
{:ok, _supply1} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: device1.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Device 1"
})
|> Repo.insert()
{:ok, _supply2} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: device2.id,
supply_index: "1",
supply_type: "ink",
supply_description: "Device 2"
})
|> Repo.insert()
device1_supplies = Snmp.list_printer_supplies(device1.id)
assert length(device1_supplies) == 1
assert hd(device1_supplies).supply_description == "Device 1"
end
end
describe "get_printer_supply/1" do
test "returns printer supply by id" do
snmp_device = snmp_device_fixture()
{:ok, supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner"
})
|> Repo.insert()
found_supply = Snmp.get_printer_supply(supply.id)
assert found_supply.id == supply.id
assert found_supply.supply_description == "Black Toner"
end
test "returns nil when supply does not exist" do
assert is_nil(Snmp.get_printer_supply(Ecto.UUID.generate()))
end
end
describe "get_printer_supplies_by_type/2" do
test "filters supplies by type" do
snmp_device = snmp_device_fixture()
{:ok, toner1} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner"
})
|> Repo.insert()
{:ok, _toner2} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "2",
supply_type: "toner",
supply_description: "Cyan Toner"
})
|> Repo.insert()
{:ok, _ink} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "3",
supply_type: "ink",
supply_description: "Black Ink"
})
|> Repo.insert()
toner_supplies = Snmp.get_printer_supplies_by_type(snmp_device.id, "toner")
assert length(toner_supplies) == 2
assert toner1.id in Enum.map(toner_supplies, & &1.id)
end
test "returns empty list when no supplies match type" do
snmp_device = snmp_device_fixture()
{:ok, _supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner"
})
|> Repo.insert()
ink_supplies = Snmp.get_printer_supplies_by_type(snmp_device.id, "ink")
assert ink_supplies == []
end
end
describe "get_low_printer_supplies/2" do
test "returns supplies below threshold percentage" do
snmp_device = snmp_device_fixture()
# Low supply (25%)
{:ok, low_supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Low Toner",
max_capacity: 10_000,
current_level: 2500
})
|> Repo.insert()
# Normal supply (75%)
{:ok, _normal_supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "2",
supply_type: "toner",
supply_description: "Normal Toner",
max_capacity: 10_000,
current_level: 7500
})
|> Repo.insert()
# Find supplies below 30%
low_supplies = Snmp.get_low_printer_supplies(snmp_device.id, 30)
assert length(low_supplies) == 1
assert hd(low_supplies).id == low_supply.id
end
test "handles supplies without capacity data" do
snmp_device = snmp_device_fixture()
{:ok, _supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Unknown Level"
})
|> Repo.insert()
# Should not crash when max_capacity or current_level is nil
low_supplies = Snmp.get_low_printer_supplies(snmp_device.id, 30)
assert low_supplies == []
end
end
describe "update_printer_supply/2" do
test "updates printer supply attributes" do
snmp_device = snmp_device_fixture()
{:ok, supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Old Description",
current_level: 5000
})
|> Repo.insert()
assert {:ok, updated} =
Snmp.update_printer_supply(supply, %{
supply_description: "New Description",
current_level: 3000
})
assert updated.supply_description == "New Description"
assert updated.current_level == 3000
end
test "returns error changeset on invalid data" do
snmp_device = snmp_device_fixture()
{:ok, supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Toner"
})
|> Repo.insert()
# Try to set supply_index to empty (should fail validation)
assert {:error, changeset} = Snmp.update_printer_supply(supply, %{supply_index: ""})
refute changeset.valid?
end
end
end

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defmodule Towerops.Snmp.PrinterSupplyTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Repo
alias Towerops.Snmp.PrinterSupply
describe "schema and validations" do
test "valid printer supply attributes" do
snmp_device = snmp_device_fixture()
attrs = %{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner Cartridge",
supply_unit: "tenThousandthsOfInches",
max_capacity: 10_000,
current_level: 7500,
color_name: "black",
part_number: "HP-CF410A"
}
changeset = PrinterSupply.changeset(%PrinterSupply{}, attrs)
assert changeset.valid?
end
test "requires snmp_device_id" do
changeset = PrinterSupply.changeset(%PrinterSupply{}, %{supply_index: "1"})
refute changeset.valid?
assert "can't be blank" in errors_on(changeset).snmp_device_id
end
test "requires supply_index" do
snmp_device = snmp_device_fixture()
changeset = PrinterSupply.changeset(%PrinterSupply{}, %{snmp_device_id: snmp_device.id})
refute changeset.valid?
assert "can't be blank" in errors_on(changeset).supply_index
end
test "enforces unique supply_index per device" do
snmp_device = snmp_device_fixture()
attrs = %{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner"
}
{:ok, _supply1} =
%PrinterSupply{}
|> PrinterSupply.changeset(attrs)
|> Repo.insert()
assert {:error, changeset} =
%PrinterSupply{}
|> PrinterSupply.changeset(attrs)
|> Repo.insert()
# Composite unique constraint errors are reported on the constraint name
assert %{snmp_device_id: ["has already been taken"]} = errors_on(changeset)
end
test "allows same supply_index on different devices" do
device1 = snmp_device_fixture()
device2 = snmp_device_fixture()
attrs1 = %{
snmp_device_id: device1.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner"
}
attrs2 = %{
snmp_device_id: device2.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner"
}
{:ok, _supply1} =
%PrinterSupply{}
|> PrinterSupply.changeset(attrs1)
|> Repo.insert()
{:ok, _supply2} =
%PrinterSupply{}
|> PrinterSupply.changeset(attrs2)
|> Repo.insert()
end
test "calculates supply_percent when max_capacity > 0" do
snmp_device = snmp_device_fixture()
{:ok, supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner",
max_capacity: 10_000,
current_level: 7500
})
|> Repo.insert()
assert supply.supply_percent == 75
end
test "supply_percent is nil when max_capacity is 0" do
snmp_device = snmp_device_fixture()
{:ok, supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner",
max_capacity: 0,
current_level: 0
})
|> Repo.insert()
assert is_nil(supply.supply_percent)
end
test "supply_percent is nil when current_level is nil" do
snmp_device = snmp_device_fixture()
{:ok, supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner",
max_capacity: 10_000,
current_level: nil
})
|> Repo.insert()
assert is_nil(supply.supply_percent)
end
end
describe "cascading delete" do
test "deletes printer supplies when snmp_device is deleted" do
snmp_device = snmp_device_fixture()
{:ok, _supply} =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner"
})
|> Repo.insert()
Repo.delete(snmp_device)
assert Repo.all(PrinterSupply) == []
end
end
end

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defmodule Towerops.Snmp.Profiles.BaseEntityPhysicalTest do
use Towerops.DataCase, async: true
alias Towerops.Snmp.Adapters.Replay
alias Towerops.Snmp.Profiles.Base
describe "discover_entity_physical/1" do
test "discovers entity physical from ENTITY-MIB" do
# Mock SNMP responses for entPhysicalTable
client_opts = [
adapter: Replay,
oid_map: %{
# entPhysicalDescr (1.3.6.1.2.1.47.1.1.1.1.2)
"1.3.6.1.2.1.47.1.1.1.1.2.1" => "Main Chassis",
"1.3.6.1.2.1.47.1.1.1.1.2.2" => "Module Slot 1",
"1.3.6.1.2.1.47.1.1.1.1.2.3" => "GigabitEthernet0/1",
# entPhysicalContainedIn (1.3.6.1.2.1.47.1.1.1.1.4) - parent index
"1.3.6.1.2.1.47.1.1.1.1.4.1" => "0",
"1.3.6.1.2.1.47.1.1.1.1.4.2" => "1",
"1.3.6.1.2.1.47.1.1.1.1.4.3" => "2",
# entPhysicalClass (1.3.6.1.2.1.47.1.1.1.1.5)
"1.3.6.1.2.1.47.1.1.1.1.5.1" => "3",
# chassis
"1.3.6.1.2.1.47.1.1.1.1.5.2" => "9",
# module
"1.3.6.1.2.1.47.1.1.1.1.5.3" => "10",
# port
# entPhysicalName (1.3.6.1.2.1.47.1.1.1.1.7)
"1.3.6.1.2.1.47.1.1.1.1.7.1" => "Chassis 1",
"1.3.6.1.2.1.47.1.1.1.1.7.2" => "Module 1",
"1.3.6.1.2.1.47.1.1.1.1.7.3" => "Port 1",
# entPhysicalSerialNum (1.3.6.1.2.1.47.1.1.1.1.11)
"1.3.6.1.2.1.47.1.1.1.1.11.1" => "SN12345",
"1.3.6.1.2.1.47.1.1.1.1.11.2" => "",
"1.3.6.1.2.1.47.1.1.1.1.11.3" => "",
# entPhysicalModelName (1.3.6.1.2.1.47.1.1.1.1.13)
"1.3.6.1.2.1.47.1.1.1.1.13.1" => "C9200-24T",
"1.3.6.1.2.1.47.1.1.1.1.13.2" => "Module-1G",
"1.3.6.1.2.1.47.1.1.1.1.13.3" => ""
}
]
{:ok, entities} = Base.discover_entity_physical(client_opts)
assert length(entities) == 3
chassis = Enum.find(entities, &(&1.entity_index == "1"))
assert chassis.entity_class == "chassis"
assert chassis.name == "Chassis 1"
assert chassis.description == "Main Chassis"
assert chassis.serial_number == "SN12345"
assert chassis.model == "C9200-24T"
assert chassis.parent_index == "0"
module = Enum.find(entities, &(&1.entity_index == "2"))
assert module.entity_class == "module"
assert module.name == "Module 1"
assert module.parent_index == "1"
port = Enum.find(entities, &(&1.entity_index == "3"))
assert port.entity_class == "port"
assert port.name == "Port 1"
assert port.parent_index == "2"
end
test "returns empty list when no entities found" do
client_opts = [
adapter: Replay,
oid_map: %{}
]
{:ok, entities} = Base.discover_entity_physical(client_opts)
assert entities == []
end
test "handles missing optional fields gracefully" do
client_opts = [
adapter: Replay,
oid_map: %{
# entPhysicalDescr
"1.3.6.1.2.1.47.1.1.1.1.2.1" => "Device",
# entPhysicalContainedIn
"1.3.6.1.2.1.47.1.1.1.1.4.1" => "0",
# entPhysicalClass
"1.3.6.1.2.1.47.1.1.1.1.5.1" => "3"
# No name, serial, model
}
]
{:ok, entities} = Base.discover_entity_physical(client_opts)
assert length(entities) == 1
assert [entity] = entities
assert entity.description == "Device"
assert entity.entity_class == "chassis"
assert is_nil(entity.name)
assert is_nil(entity.serial_number)
assert is_nil(entity.model)
end
end
end

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defmodule Towerops.Snmp.Profiles.BasePrinterSupplyTest do
use Towerops.DataCase, async: true
alias Towerops.Snmp.Adapters.Replay
alias Towerops.Snmp.Profiles.Base
describe "discover_printer_supplies/1" do
test "discovers printer supplies from Printer-MIB" do
# Printer-MIB OIDs for supply tracking
client_opts = [
adapter: Replay,
oid_map: %{
# prtMarkerSuppliesEntry for supply 1 (Black Toner)
"1.3.6.1.2.1.43.11.1.1.3.1.1" => "3",
# prtMarkerSuppliesType (3 = toner)
"1.3.6.1.2.1.43.11.1.1.4.1.1" => "Black Toner Cartridge",
# prtMarkerSuppliesDescription
"1.3.6.1.2.1.43.11.1.1.7.1.1" => "19",
# prtMarkerSuppliesUnit (19 = percent)
"1.3.6.1.2.1.43.11.1.1.8.1.1" => "10000",
# prtMarkerSuppliesMaxCapacity
"1.3.6.1.2.1.43.11.1.1.9.1.1" => "7500",
# prtMarkerSuppliesLevel
"1.3.6.1.2.1.43.11.1.1.12.1.1" => "black",
# prtMarkerColorantValue
# Supply 2 (Cyan Toner)
"1.3.6.1.2.1.43.11.1.1.3.1.2" => "3",
"1.3.6.1.2.1.43.11.1.1.4.1.2" => "Cyan Toner Cartridge",
"1.3.6.1.2.1.43.11.1.1.7.1.2" => "19",
"1.3.6.1.2.1.43.11.1.1.8.1.2" => "10000",
"1.3.6.1.2.1.43.11.1.1.9.1.2" => "8500",
"1.3.6.1.2.1.43.11.1.1.12.1.2" => "cyan"
}
]
assert {:ok, supplies} = Base.discover_printer_supplies(client_opts)
assert length(supplies) == 2
black_toner = Enum.find(supplies, &(&1.supply_index == "1"))
assert black_toner
assert black_toner.supply_type == "toner"
assert black_toner.supply_description == "Black Toner Cartridge"
assert black_toner.supply_unit == "percent"
assert black_toner.max_capacity == 10_000
assert black_toner.current_level == 7500
assert black_toner.color_name == "black"
cyan_toner = Enum.find(supplies, &(&1.supply_index == "2"))
assert cyan_toner
assert cyan_toner.supply_type == "toner"
assert cyan_toner.current_level == 8500
assert cyan_toner.color_name == "cyan"
end
test "handles missing optional fields gracefully" do
client_opts = [
adapter: Replay,
oid_map: %{
# Minimal supply data
"1.3.6.1.2.1.43.11.1.1.3.1.1" => "3",
# Type only
"1.3.6.1.2.1.43.11.1.1.4.1.1" => "Toner",
# Description only
"1.3.6.1.2.1.43.11.1.1.8.1.1" => "-1",
# Max capacity unknown
"1.3.6.1.2.1.43.11.1.1.9.1.1" => "-2"
# Current level unknown
}
]
assert {:ok, [supply]} = Base.discover_printer_supplies(client_opts)
assert supply.supply_index == "1"
assert supply.supply_type == "toner"
assert supply.supply_description == "Toner"
assert is_nil(supply.max_capacity)
assert is_nil(supply.current_level)
end
test "returns empty list when no supplies exist" do
client_opts = [
adapter: Replay,
oid_map: %{}
]
assert {:ok, []} = Base.discover_printer_supplies(client_opts)
end
test "handles SNMP errors gracefully" do
client_opts = [
adapter: Replay,
oid_map: %{}
]
# Should not crash, return empty list
assert {:ok, []} = Base.discover_printer_supplies(client_opts)
end
test "maps supply type codes correctly" do
client_opts = [
adapter: Replay,
oid_map: %{
"1.3.6.1.2.1.43.11.1.1.3.1.1" => "1",
# other(1)
"1.3.6.1.2.1.43.11.1.1.4.1.1" => "Unknown Supply",
"1.3.6.1.2.1.43.11.1.1.3.1.2" => "3",
# toner(3)
"1.3.6.1.2.1.43.11.1.1.4.1.2" => "Toner",
"1.3.6.1.2.1.43.11.1.1.3.1.3" => "4",
# ink(4)
"1.3.6.1.2.1.43.11.1.1.4.1.3" => "Ink",
"1.3.6.1.2.1.43.11.1.1.3.1.4" => "5",
# inkCartridge(5)
"1.3.6.1.2.1.43.11.1.1.4.1.4" => "Ink Cartridge",
"1.3.6.1.2.1.43.11.1.1.3.1.5" => "10",
# drum(10)
"1.3.6.1.2.1.43.11.1.1.4.1.5" => "Drum",
"1.3.6.1.2.1.43.11.1.1.3.1.6" => "15",
# fuser(15)
"1.3.6.1.2.1.43.11.1.1.4.1.6" => "Fuser"
}
]
assert {:ok, supplies} = Base.discover_printer_supplies(client_opts)
assert length(supplies) == 6
types = Enum.map(supplies, & &1.supply_type)
assert "other" in types
assert "toner" in types
assert "ink" in types
assert "inkCartridge" in types
assert "drum" in types
assert "fuser" in types
end
end
end

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defmodule Towerops.Snmp.Profiles.BaseTransceiverTest do
use Towerops.DataCase, async: true
alias Towerops.Snmp.Adapters.Replay
alias Towerops.Snmp.Profiles.Base
describe "discover_transceivers/1" do
test "returns empty list when no transceivers found" do
client_opts = [
adapter: Replay,
oid_map: %{}
]
assert {:ok, []} = Base.discover_transceivers(client_opts)
end
test "discovers transceiver from ENTITY-MIB with basic info" do
# Simulate ENTITY-MIB walk results for a SFP module
client_opts = [
adapter: Replay,
oid_map: %{
# entPhysicalDescr - must include "SFP" or similar
"1.3.6.1.2.1.47.1.1.1.1.2.1001" => "Gigabit SFP Transceiver",
# entPhysicalClass - 10 = port/connector
"1.3.6.1.2.1.47.1.1.1.1.5.1001" => "10",
# entPhysicalSerialNum
"1.3.6.1.2.1.47.1.1.1.1.11.1001" => "ABC123456",
# entPhysicalModelName
"1.3.6.1.2.1.47.1.1.1.1.13.1001" => "GLC-LH-SMD",
# entPhysicalMfgName
"1.3.6.1.2.1.47.1.1.1.1.12.1001" => "Cisco Systems"
}
]
assert {:ok, [transceiver]} = Base.discover_transceivers(client_opts)
assert transceiver.port_index == "1001"
assert transceiver.vendor_name == "Cisco Systems"
assert transceiver.vendor_serial_number == "ABC123456"
assert transceiver.vendor_part_number == "GLC-LH-SMD"
assert transceiver.transceiver_type == "SFP"
end
test "discovers multiple transceivers" do
client_opts = [
adapter: Replay,
oid_map: %{
"1.3.6.1.2.1.47.1.1.1.1.2.1001" => "SFP+ Transceiver",
"1.3.6.1.2.1.47.1.1.1.1.2.1002" => "QSFP28 Transceiver",
"1.3.6.1.2.1.47.1.1.1.1.5.1001" => "10",
"1.3.6.1.2.1.47.1.1.1.1.5.1002" => "10"
}
]
assert {:ok, transceivers} = Base.discover_transceivers(client_opts)
assert length(transceivers) == 2
assert Enum.any?(transceivers, &(&1.transceiver_type == "SFP+"))
assert Enum.any?(transceivers, &(&1.transceiver_type == "QSFP28"))
end
test "detects transceiver type from description" do
test_cases = [
{"SFP Transceiver", "SFP"},
{"SFP+ Optical Module", "SFP+"},
{"QSFP Transceiver", "QSFP"},
{"QSFP+ Module", "QSFP+"},
{"QSFP28 100G", "QSFP28"},
{"XFP Module", "XFP"},
{"GBIC Transceiver", "GBIC"},
{"Unknown Optic Module", "unknown"}
]
for {description, expected_type} <- test_cases do
client_opts = [
adapter: Replay,
oid_map: %{
"1.3.6.1.2.1.47.1.1.1.1.2.1001" => description,
"1.3.6.1.2.1.47.1.1.1.1.5.1001" => "10"
}
]
assert {:ok, [transceiver]} = Base.discover_transceivers(client_opts)
assert transceiver.transceiver_type == expected_type
end
end
test "sets supports_dom to true for optical transceivers" do
client_opts = [
adapter: Replay,
oid_map: %{
"1.3.6.1.2.1.47.1.1.1.1.2.1001" => "SFP Transceiver",
"1.3.6.1.2.1.47.1.1.1.1.5.1001" => "10"
}
]
assert {:ok, [transceiver]} = Base.discover_transceivers(client_opts)
assert transceiver.supports_dom == true
end
test "filters out non-transceiver physical entities" do
client_opts = [
adapter: Replay,
oid_map: %{
"1.3.6.1.2.1.47.1.1.1.1.2.1" => "Chassis",
"1.3.6.1.2.1.47.1.1.1.1.2.2" => "Power Supply",
"1.3.6.1.2.1.47.1.1.1.1.2.1001" => "SFP Transceiver",
"1.3.6.1.2.1.47.1.1.1.1.5.1" => "3",
# chassis
"1.3.6.1.2.1.47.1.1.1.1.5.2" => "6",
# power supply
"1.3.6.1.2.1.47.1.1.1.1.5.1001" => "10"
# port
}
]
assert {:ok, [transceiver]} = Base.discover_transceivers(client_opts)
assert length([transceiver]) == 1
assert transceiver.port_index == "1001"
end
test "handles missing optional fields gracefully" do
client_opts = [
adapter: Replay,
oid_map: %{
"1.3.6.1.2.1.47.1.1.1.1.2.1001" => "SFP Transceiver",
"1.3.6.1.2.1.47.1.1.1.1.5.1001" => "10"
# No serial, model, vendor
}
]
assert {:ok, [transceiver]} = Base.discover_transceivers(client_opts)
assert transceiver.port_index == "1001"
assert transceiver.transceiver_type == "SFP"
assert is_nil(transceiver.vendor_name)
assert is_nil(transceiver.vendor_serial_number)
assert is_nil(transceiver.vendor_part_number)
end
end
end

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defmodule Towerops.Snmp.TransceiverContextTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Snmp
describe "list_transceivers/1" do
test "returns all transceivers for a device" do
snmp_device = snmp_device_fixture()
transceiver1 = transceiver_fixture(snmp_device: snmp_device, transceiver_type: "SFP")
transceiver2 = transceiver_fixture(snmp_device: snmp_device, transceiver_type: "SFP+")
# Other device should not be included
other_device = snmp_device_fixture()
_other_transceiver = transceiver_fixture(snmp_device: other_device)
transceivers = Snmp.list_transceivers(snmp_device.id)
assert length(transceivers) == 2
assert transceiver1.id in Enum.map(transceivers, & &1.id)
assert transceiver2.id in Enum.map(transceivers, & &1.id)
end
test "returns empty list when no transceivers exist" do
snmp_device = snmp_device_fixture()
assert Snmp.list_transceivers(snmp_device.id) == []
end
end
describe "get_transceiver/1" do
test "returns transceiver by id" do
transceiver = transceiver_fixture(vendor_name: "Cisco")
{:ok, found} = Snmp.get_transceiver(transceiver.id)
assert found.id == transceiver.id
assert found.vendor_name == "Cisco"
end
test "returns error when transceiver not found" do
assert {:error, :not_found} = Snmp.get_transceiver(Ecto.UUID.generate())
end
end
describe "get_transceivers_by_type/2" do
test "filters transceivers by type" do
snmp_device = snmp_device_fixture()
sfp = transceiver_fixture(snmp_device: snmp_device, transceiver_type: "SFP")
_sfp_plus = transceiver_fixture(snmp_device: snmp_device, transceiver_type: "SFP+")
_qsfp = transceiver_fixture(snmp_device: snmp_device, transceiver_type: "QSFP")
sfp_transceivers = Snmp.get_transceivers_by_type(snmp_device.id, "SFP")
assert length(sfp_transceivers) == 1
assert hd(sfp_transceivers).id == sfp.id
end
test "returns empty list when no transceivers of type exist" do
snmp_device = snmp_device_fixture()
_transceiver = transceiver_fixture(snmp_device: snmp_device, transceiver_type: "SFP")
assert Snmp.get_transceivers_by_type(snmp_device.id, "QSFP") == []
end
end
describe "get_transceiver_with_latest_reading/1" do
test "returns transceiver with latest DOM reading" do
transceiver = transceiver_fixture(supports_dom: true)
# Create multiple readings
_old_reading =
transceiver_reading_fixture(
transceiver: transceiver,
rx_power_dbm: -6.0,
measured_at: ~U[2024-01-01 10:00:00Z]
)
latest_reading =
transceiver_reading_fixture(
transceiver: transceiver,
rx_power_dbm: -5.0,
measured_at: ~U[2024-01-01 12:00:00Z]
)
{:ok, result} = Snmp.get_transceiver_with_latest_reading(transceiver.id)
assert result.id == transceiver.id
assert result.latest_reading.id == latest_reading.id
assert result.latest_reading.rx_power_dbm == -5.0
end
test "returns transceiver with nil reading when no readings exist" do
transceiver = transceiver_fixture(supports_dom: true)
{:ok, result} = Snmp.get_transceiver_with_latest_reading(transceiver.id)
assert result.id == transceiver.id
assert is_nil(result.latest_reading)
end
test "returns error when transceiver not found" do
assert {:error, :not_found} =
Snmp.get_transceiver_with_latest_reading(Ecto.UUID.generate())
end
end
describe "update_transceiver/2" do
test "updates transceiver with valid attributes" do
transceiver = transceiver_fixture(vendor_name: "Old Vendor")
{:ok, updated} = Snmp.update_transceiver(transceiver, %{vendor_name: "New Vendor"})
assert updated.vendor_name == "New Vendor"
end
test "returns error with invalid attributes" do
transceiver = transceiver_fixture()
{:error, changeset} =
Snmp.update_transceiver(transceiver, %{transceiver_type: "INVALID"})
refute changeset.valid?
assert "is invalid" in errors_on(changeset).transceiver_type
end
end
describe "list_transceivers_with_dom/1" do
test "returns only transceivers with DOM support" do
snmp_device = snmp_device_fixture()
dom_transceiver = transceiver_fixture(snmp_device: snmp_device, supports_dom: true)
_no_dom = transceiver_fixture(snmp_device: snmp_device, supports_dom: false)
transceivers = Snmp.list_transceivers_with_dom(snmp_device.id)
assert length(transceivers) == 1
assert hd(transceivers).id == dom_transceiver.id
assert hd(transceivers).supports_dom == true
end
test "returns empty list when no DOM transceivers exist" do
snmp_device = snmp_device_fixture()
_transceiver = transceiver_fixture(snmp_device: snmp_device, supports_dom: false)
assert Snmp.list_transceivers_with_dom(snmp_device.id) == []
end
end
end

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defmodule Towerops.Snmp.TransceiverReadingTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Snmp.TransceiverReading
describe "transceiver reading changeset" do
test "valid changeset with all DOM fields" do
transceiver = transceiver_fixture()
attrs = %{
transceiver_id: transceiver.id,
rx_power_dbm: -3.5,
tx_power_dbm: -2.1,
bias_current_ma: 35.2,
temperature_celsius: 42.8,
voltage_v: 3.3,
measured_at: DateTime.utc_now()
}
changeset = TransceiverReading.changeset(%TransceiverReading{}, attrs)
assert changeset.valid?
assert changeset.changes.rx_power_dbm == -3.5
assert changeset.changes.tx_power_dbm == -2.1
assert changeset.changes.bias_current_ma == 35.2
end
test "requires transceiver_id and measured_at" do
changeset = TransceiverReading.changeset(%TransceiverReading{}, %{})
refute changeset.valid?
assert "can't be blank" in errors_on(changeset).transceiver_id
assert "can't be blank" in errors_on(changeset).measured_at
end
test "allows nil for optional DOM fields" do
transceiver = transceiver_fixture()
attrs = %{
transceiver_id: transceiver.id,
measured_at: DateTime.utc_now()
}
changeset = TransceiverReading.changeset(%TransceiverReading{}, attrs)
assert changeset.valid?
end
test "validates numeric ranges" do
transceiver = transceiver_fixture()
attrs = %{
transceiver_id: transceiver.id,
measured_at: DateTime.utc_now(),
rx_power_dbm: -50.0,
tx_power_dbm: 10.0,
bias_current_ma: 150.0,
temperature_celsius: 120.0,
voltage_v: 5.0
}
changeset = TransceiverReading.changeset(%TransceiverReading{}, attrs)
# All values should be within acceptable ranges
assert changeset.valid?
end
end
describe "database operations" do
test "creates reading successfully" do
transceiver = transceiver_fixture()
attrs = %{
transceiver_id: transceiver.id,
rx_power_dbm: -5.2,
tx_power_dbm: -3.1,
measured_at: DateTime.utc_now()
}
changeset = TransceiverReading.changeset(%TransceiverReading{}, attrs)
{:ok, reading} = Repo.insert(changeset)
assert reading.id
assert reading.rx_power_dbm == -5.2
assert reading.tx_power_dbm == -3.1
end
test "enforces foreign key constraint on transceiver_id" do
attrs = %{
transceiver_id: Ecto.UUID.generate(),
measured_at: DateTime.utc_now()
}
assert {:error, changeset} =
%TransceiverReading{} |> TransceiverReading.changeset(attrs) |> Repo.insert()
assert "does not exist" in errors_on(changeset).transceiver_id
end
test "deletes readings when transceiver is deleted" do
transceiver = transceiver_fixture()
reading = transceiver_reading_fixture(transceiver: transceiver)
Repo.delete!(transceiver)
assert is_nil(Repo.get(TransceiverReading, reading.id))
end
end
describe "associations" do
test "belongs to transceiver" do
transceiver = transceiver_fixture()
reading = transceiver_reading_fixture(transceiver: transceiver)
loaded = Repo.preload(reading, :transceiver)
assert loaded.transceiver.id == transceiver.id
end
end
describe "DOM metrics" do
test "stores full DOM suite (temperature, voltage, bias, tx, rx)" do
transceiver = transceiver_fixture(supports_dom: true)
reading =
transceiver_reading_fixture(
transceiver: transceiver,
temperature_celsius: 45.2,
voltage_v: 3.28,
bias_current_ma: 38.5,
tx_power_dbm: -2.3,
rx_power_dbm: -4.1
)
assert reading.temperature_celsius == 45.2
assert reading.voltage_v == 3.28
assert reading.bias_current_ma == 38.5
assert reading.tx_power_dbm == -2.3
assert reading.rx_power_dbm == -4.1
end
test "handles partial DOM data (only power levels)" do
transceiver = transceiver_fixture(supports_dom: true)
reading =
transceiver_reading_fixture(
transceiver: transceiver,
tx_power_dbm: -3.0,
rx_power_dbm: -5.5
)
assert reading.tx_power_dbm == -3.0
assert reading.rx_power_dbm == -5.5
assert is_nil(reading.temperature_celsius)
assert is_nil(reading.voltage_v)
assert is_nil(reading.bias_current_ma)
end
end
end

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defmodule Towerops.Snmp.TransceiverTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Snmp.Transceiver
describe "transceiver changeset" do
test "valid changeset with all fields" do
snmp_device = snmp_device_fixture()
entity = entity_physical_fixture(snmp_device: snmp_device, entity_class: "port")
attrs = %{
snmp_device_id: snmp_device.id,
entity_physical_id: entity.id,
port_index: "1",
transceiver_type: "SFP",
vendor_name: "Finisar",
vendor_part_number: "FTLX8571D3BCL",
vendor_serial_number: "ABC123456",
vendor_revision: "A",
wavelength_nm: 1310,
connector_type: "LC",
nominal_bitrate_mbps: 10_000,
supports_dom: true
}
changeset = Transceiver.changeset(%Transceiver{}, attrs)
assert changeset.valid?
assert changeset.changes.vendor_name == "Finisar"
assert changeset.changes.transceiver_type == "SFP"
end
test "requires snmp_device_id and port_index" do
changeset = Transceiver.changeset(%Transceiver{}, %{})
refute changeset.valid?
assert "can't be blank" in errors_on(changeset).snmp_device_id
assert "can't be blank" in errors_on(changeset).port_index
end
test "validates transceiver_type inclusion" do
snmp_device = snmp_device_fixture()
invalid_attrs = %{
snmp_device_id: snmp_device.id,
port_index: "1",
transceiver_type: "INVALID"
}
changeset = Transceiver.changeset(%Transceiver{}, invalid_attrs)
refute changeset.valid?
assert "is invalid" in errors_on(changeset).transceiver_type
end
test "allows nil for optional fields" do
snmp_device = snmp_device_fixture()
attrs = %{
snmp_device_id: snmp_device.id,
port_index: "1"
}
changeset = Transceiver.changeset(%Transceiver{}, attrs)
assert changeset.valid?
end
end
describe "database operations" do
test "creates transceiver successfully" do
snmp_device = snmp_device_fixture()
attrs = %{
snmp_device_id: snmp_device.id,
port_index: "1",
transceiver_type: "SFP+",
vendor_name: "Cisco"
}
changeset = Transceiver.changeset(%Transceiver{}, attrs)
{:ok, transceiver} = Repo.insert(changeset)
assert transceiver.id
assert transceiver.vendor_name == "Cisco"
assert transceiver.transceiver_type == "SFP+"
end
test "enforces unique constraint on snmp_device_id and port_index" do
snmp_device = snmp_device_fixture()
attrs = %{
snmp_device_id: snmp_device.id,
port_index: "1",
transceiver_type: "SFP"
}
{:ok, _first} = %Transceiver{} |> Transceiver.changeset(attrs) |> Repo.insert()
assert {:error, changeset} =
%Transceiver{} |> Transceiver.changeset(attrs) |> Repo.insert()
assert "has already been taken" in errors_on(changeset).snmp_device_id
end
test "enforces foreign key constraint on snmp_device_id" do
attrs = %{
snmp_device_id: Ecto.UUID.generate(),
port_index: "1"
}
assert {:error, changeset} =
%Transceiver{} |> Transceiver.changeset(attrs) |> Repo.insert()
assert "does not exist" in errors_on(changeset).snmp_device_id
end
test "deletes transceiver when snmp_device is deleted" do
snmp_device = snmp_device_fixture()
transceiver = transceiver_fixture(snmp_device: snmp_device)
device = Repo.preload(snmp_device, :device).device
Repo.delete!(device)
assert is_nil(Repo.get(Transceiver, transceiver.id))
end
end
describe "associations" do
test "belongs to snmp_device" do
snmp_device = snmp_device_fixture()
transceiver = transceiver_fixture(snmp_device: snmp_device)
loaded = Repo.preload(transceiver, :snmp_device)
assert loaded.snmp_device.id == snmp_device.id
end
test "belongs to entity_physical" do
snmp_device = snmp_device_fixture()
entity = entity_physical_fixture(snmp_device: snmp_device, entity_class: "port")
transceiver = transceiver_fixture(snmp_device: snmp_device, entity_physical: entity)
loaded = Repo.preload(transceiver, :entity_physical)
assert loaded.entity_physical.id == entity.id
end
end
end

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defmodule Towerops.Workers.DevicePollerTransceiverTest do
use Towerops.DataCase, async: true
import Towerops.SnmpFixtures
alias Towerops.Repo
alias Towerops.Snmp.Adapters.Replay
alias Towerops.Snmp.TransceiverReading
alias Towerops.Workers.DevicePollerWorker
setup do
snmp_device = snmp_device_fixture()
# Create DOM-capable transceivers
transceiver1 =
transceiver_fixture(
snmp_device: snmp_device,
port_index: "1001",
transceiver_type: "SFP",
supports_dom: true
)
transceiver2 =
transceiver_fixture(
snmp_device: snmp_device,
port_index: "1002",
transceiver_type: "SFP+",
supports_dom: true
)
# Create a non-DOM transceiver
_transceiver3 =
transceiver_fixture(
snmp_device: snmp_device,
port_index: "1003",
transceiver_type: "GBIC",
supports_dom: false
)
{:ok, snmp_device: snmp_device, transceiver1: transceiver1, transceiver2: transceiver2}
end
describe "poll_transceivers/3" do
test "creates DOM readings for transceivers with supports_dom=true", %{
snmp_device: _snmp_device,
transceiver1: t1,
transceiver2: t2
} do
transceivers = [t1, t2]
# Mock SNMP responses for DOM metrics (vendor-specific MIBs would be used in real implementation)
client_opts = [
adapter: Replay,
oid_map: %{
# Simulated DOM OIDs for transceiver 1001
"1.3.6.1.4.1.9.9.999.1.1.1.1.1.1001" => "-5.2",
# rx_power_dbm
"1.3.6.1.4.1.9.9.999.1.1.1.1.2.1001" => "-3.1",
# tx_power_dbm
"1.3.6.1.4.1.9.9.999.1.1.1.1.3.1001" => "38.5",
# bias_current_ma
"1.3.6.1.4.1.9.9.999.1.1.1.1.4.1001" => "45.2",
# temperature_celsius
"1.3.6.1.4.1.9.9.999.1.1.1.1.5.1001" => "3.28",
# voltage_v
# Simulated DOM OIDs for transceiver 1002
"1.3.6.1.4.1.9.9.999.1.1.1.1.1.1002" => "-4.8",
"1.3.6.1.4.1.9.9.999.1.1.1.1.2.1002" => "-2.9",
"1.3.6.1.4.1.9.9.999.1.1.1.1.3.1002" => "39.2",
"1.3.6.1.4.1.9.9.999.1.1.1.1.4.1002" => "46.1",
"1.3.6.1.4.1.9.9.999.1.1.1.1.5.1002" => "3.29"
}
]
now = DateTime.utc_now()
# Call the polling function (to be implemented)
:ok = DevicePollerWorker.poll_transceivers(transceivers, client_opts, now)
# Verify readings were created
readings =
TransceiverReading
|> Repo.all()
|> Repo.preload(:transceiver)
assert length(readings) == 2
reading1 = Enum.find(readings, &(&1.transceiver_id == t1.id))
assert reading1
assert reading1.rx_power_dbm == -5.2
assert reading1.tx_power_dbm == -3.1
assert reading1.bias_current_ma == 38.5
assert reading1.temperature_celsius == 45.2
assert reading1.voltage_v == 3.28
reading2 = Enum.find(readings, &(&1.transceiver_id == t2.id))
assert reading2
assert reading2.rx_power_dbm == -4.8
assert reading2.tx_power_dbm == -2.9
end
test "handles partial DOM data gracefully", %{transceiver1: t1} do
transceivers = [t1]
# Only some DOM metrics available
client_opts = [
adapter: Replay,
oid_map: %{
"1.3.6.1.4.1.9.9.999.1.1.1.1.1.1001" => "-5.2",
# rx_power_dbm only
"1.3.6.1.4.1.9.9.999.1.1.1.1.2.1001" => "-3.1"
# tx_power_dbm only
# No temperature, voltage, bias current
}
]
now = DateTime.utc_now()
:ok = DevicePollerWorker.poll_transceivers(transceivers, client_opts, now)
reading = Repo.get_by(TransceiverReading, transceiver_id: t1.id)
assert reading
assert reading.rx_power_dbm == -5.2
assert reading.tx_power_dbm == -3.1
assert is_nil(reading.temperature_celsius)
assert is_nil(reading.voltage_v)
assert is_nil(reading.bias_current_ma)
end
test "skips transceivers with supports_dom=false", %{snmp_device: snmp_device} do
non_dom_transceiver =
transceiver_fixture(
snmp_device: snmp_device,
port_index: "9001",
supports_dom: false
)
client_opts = [adapter: Replay, oid_map: %{}]
now = DateTime.utc_now()
:ok = DevicePollerWorker.poll_transceivers([non_dom_transceiver], client_opts, now)
# No readings should be created
readings = Repo.all(TransceiverReading)
assert readings == []
end
test "handles SNMP errors gracefully", %{transceiver1: t1} do
transceivers = [t1]
# Empty SNMP responses (simulating device not responding)
client_opts = [adapter: Replay, oid_map: %{}]
now = DateTime.utc_now()
# Should not crash
:ok = DevicePollerWorker.poll_transceivers(transceivers, client_opts, now)
# May or may not create a reading with nil values, depending on implementation
# At minimum, should not crash
end
test "handles empty transceiver list" do
client_opts = [adapter: Replay, oid_map: %{}]
now = DateTime.utc_now()
# Should not crash
:ok = DevicePollerWorker.poll_transceivers([], client_opts, now)
readings = Repo.all(TransceiverReading)
assert readings == []
end
end
end

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test/towerops_web/live/device_live/show_test.exs
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@ -628,4 +628,382 @@ defmodule ToweropsWeb.DeviceLive.ShowTest do
|> Enum.find(&(Map.get(&1, "label") == label))
|> Map.get("fill")
end
describe "transceivers tab" do
setup %{device: device} do
alias Device, as: SnmpDevice
alias Towerops.Snmp.Transceiver
snmp_device =
%SnmpDevice{}
|> SnmpDevice.changeset(%{device_id: device.id, sys_name: "switch", sys_descr: "Switch"})
|> Towerops.Repo.insert!()
transceiver1 =
%Transceiver{}
|> Transceiver.changeset(%{
snmp_device_id: snmp_device.id,
port_index: "1001",
transceiver_type: "SFP+",
vendor_name: "Finisar",
vendor_part_number: "FTLX8571D3BCL",
vendor_serial_number: "ABC123456",
wavelength_nm: 850,
supports_dom: true
})
|> Towerops.Repo.insert!()
transceiver2 =
%Transceiver{}
|> Transceiver.changeset(%{
snmp_device_id: snmp_device.id,
port_index: "1002",
transceiver_type: "QSFP28",
vendor_name: "Intel",
vendor_part_number: "E810-XXVDA4",
supports_dom: false
})
|> Towerops.Repo.insert!()
%{snmp_device: snmp_device, transceiver1: transceiver1, transceiver2: transceiver2}
end
test "displays transceivers tab link", %{conn: conn, user: user, device: device} do
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device.id}?tab=overview")
assert html =~ "Transceivers"
end
test "renders transceivers tab with table", %{conn: conn, user: user, device: device} do
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device.id}?tab=transceivers")
# Check for table headers
assert html =~ "Port"
assert html =~ "Type"
assert html =~ "Vendor"
assert html =~ "Part Number"
assert html =~ "Serial Number"
# Check for transceiver data
assert html =~ "SFP+"
assert html =~ "QSFP28"
assert html =~ "Finisar"
assert html =~ "Intel"
assert html =~ "FTLX8571D3BCL"
assert html =~ "ABC123456"
end
test "displays DOM badge for transceivers with supports_dom=true", %{
conn: conn,
user: user,
device: device
} do
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device.id}?tab=transceivers")
assert html =~ "DOM"
end
test "shows empty state when no transceivers", %{conn: conn, user: user, organization: organization} do
alias Device, as: SnmpDevice
device_without_transceivers =
Towerops.DevicesFixtures.device_fixture(%{
organization_id: organization.id,
name: "Switch Without Transceivers",
ip_address: "192.168.1.3"
})
%SnmpDevice{}
|> SnmpDevice.changeset(%{
device_id: device_without_transceivers.id,
sys_name: "switch",
sys_descr: "Switch"
})
|> Towerops.Repo.insert!()
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device_without_transceivers.id}?tab=transceivers")
assert html =~ "No transceivers found"
end
test "switches to transceivers tab via patch", %{conn: conn, user: user, device: device} do
conn = log_in_user(conn, user)
{:ok, view, _html} = live(conn, ~p"/devices/#{device.id}?tab=overview")
html = view |> element("a", "Transceivers") |> render_click()
assert html =~ "Port"
assert html =~ "SFP+"
end
end
describe "printer supplies tab" do
setup %{device: device} do
alias Device, as: SnmpDevice
alias Towerops.Snmp.PrinterSupply
snmp_device =
%SnmpDevice{}
|> SnmpDevice.changeset(%{device_id: device.id, sys_name: "printer", sys_descr: "Printer"})
|> Towerops.Repo.insert!()
supply1 =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "1",
supply_type: "toner",
supply_description: "Black Toner Cartridge",
supply_unit: "percent",
max_capacity: 100,
current_level: 45,
color_name: "black",
part_number: "TN-450"
})
|> Towerops.Repo.insert!()
supply2 =
%PrinterSupply{}
|> PrinterSupply.changeset(%{
snmp_device_id: snmp_device.id,
supply_index: "2",
supply_type: "drum",
supply_description: "Drum Unit",
supply_unit: "percent",
max_capacity: 100,
current_level: 15,
part_number: "DR-420"
})
|> Towerops.Repo.insert!()
%{snmp_device: snmp_device, supply1: supply1, supply2: supply2}
end
test "displays printer supplies tab link", %{conn: conn, user: user, device: device} do
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device.id}?tab=overview")
assert html =~ "Printer Supplies"
end
test "renders printer supplies tab with table", %{conn: conn, user: user, device: device} do
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device.id}?tab=printer_supplies")
# Check for table headers
assert html =~ "Type"
assert html =~ "Description"
assert html =~ "Level"
assert html =~ "Part Number"
# Check for supply data
assert html =~ "toner"
assert html =~ "drum"
assert html =~ "Black Toner Cartridge"
assert html =~ "Drum Unit"
assert html =~ "TN-450"
assert html =~ "DR-420"
end
test "displays supply level percentage bars", %{conn: conn, user: user, device: device} do
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device.id}?tab=printer_supplies")
assert html =~ "45%"
assert html =~ "15%"
end
test "shows low supply warning for supplies below 20%", %{
conn: conn,
user: user,
device: device
} do
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device.id}?tab=printer_supplies")
# Supply at 15% should have warning styling
assert html =~ "15%"
end
test "shows empty state when no printer supplies", %{
conn: conn,
user: user,
organization: organization
} do
alias Device, as: SnmpDevice
device_without_supplies =
Towerops.DevicesFixtures.device_fixture(%{
organization_id: organization.id,
name: "Device Without Supplies",
ip_address: "192.168.1.4"
})
%SnmpDevice{}
|> SnmpDevice.changeset(%{
device_id: device_without_supplies.id,
sys_name: "device",
sys_descr: "Device"
})
|> Towerops.Repo.insert!()
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device_without_supplies.id}?tab=printer_supplies")
assert html =~ "No printer supplies found"
end
test "switches to printer supplies tab via patch", %{conn: conn, user: user, device: device} do
conn = log_in_user(conn, user)
{:ok, view, _html} = live(conn, ~p"/devices/#{device.id}?tab=overview")
html = view |> element("a", "Printer Supplies") |> render_click()
assert html =~ "Black Toner Cartridge"
assert html =~ "45%"
end
end
describe "hardware inventory tab" do
setup %{device: device} do
alias Device, as: SnmpDevice
alias Towerops.Snmp.EntityPhysical
snmp_device =
%SnmpDevice{}
|> SnmpDevice.changeset(%{device_id: device.id, sys_name: "switch", sys_descr: "Switch"})
|> Towerops.Repo.insert!()
# Create chassis (root level)
chassis =
%EntityPhysical{}
|> EntityPhysical.changeset(%{
snmp_device_id: snmp_device.id,
entity_index: "1",
entity_class: "chassis",
name: "Chassis 1",
description: "Main Chassis",
serial_number: "SN123456",
model: "CCR1009",
manufacturer: "MikroTik"
})
|> Towerops.Repo.insert!()
# Create power supply (child of chassis)
power_supply =
%EntityPhysical{}
|> EntityPhysical.changeset(%{
snmp_device_id: snmp_device.id,
entity_index: "2",
parent_index: "1",
parent_id: chassis.id,
entity_class: "powerSupply",
name: "Power Supply 1",
description: "Main Power Supply",
serial_number: "PS789012"
})
|> Towerops.Repo.insert!()
# Create module (child of chassis)
module =
%EntityPhysical{}
|> EntityPhysical.changeset(%{
snmp_device_id: snmp_device.id,
entity_index: "3",
parent_index: "1",
parent_id: chassis.id,
entity_class: "module",
name: "SFP Module 1",
description: "10G SFP+ Module"
})
|> Towerops.Repo.insert!()
%{snmp_device: snmp_device, chassis: chassis, power_supply: power_supply, module: module}
end
test "displays hardware inventory tab link", %{conn: conn, user: user, device: device} do
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device.id}?tab=overview")
assert html =~ "Hardware"
end
test "renders hardware inventory tab with table", %{conn: conn, user: user, device: device} do
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device.id}?tab=hardware")
# Check for table headers
assert html =~ "Class"
assert html =~ "Name"
assert html =~ "Description"
assert html =~ "Serial Number"
assert html =~ "Model"
# Check for entity data
assert html =~ "chassis"
assert html =~ "powerSupply"
assert html =~ "module"
assert html =~ "Chassis 1"
assert html =~ "Power Supply 1"
assert html =~ "SN123456"
assert html =~ "CCR1009"
assert html =~ "MikroTik"
end
test "displays hierarchical structure with indentation", %{
conn: conn,
user: user,
device: device
} do
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device.id}?tab=hardware")
# Power supply and module should appear after chassis
assert html =~ "Main Chassis"
assert html =~ "Main Power Supply"
assert html =~ "SFP Module 1"
end
test "shows empty state when no hardware inventory", %{
conn: conn,
user: user,
organization: organization
} do
alias Device, as: SnmpDevice
device_without_hardware =
Towerops.DevicesFixtures.device_fixture(%{
organization_id: organization.id,
name: "Device Without Hardware",
ip_address: "192.168.1.5"
})
%SnmpDevice{}
|> SnmpDevice.changeset(%{
device_id: device_without_hardware.id,
sys_name: "device",
sys_descr: "Device"
})
|> Towerops.Repo.insert!()
conn = log_in_user(conn, user)
{:ok, _view, html} = live(conn, ~p"/devices/#{device_without_hardware.id}?tab=hardware")
assert html =~ "No hardware inventory found"
end
test "switches to hardware tab via patch", %{conn: conn, user: user, device: device} do
conn = log_in_user(conn, user)
{:ok, view, _html} = live(conn, ~p"/devices/#{device.id}?tab=overview")
html = view |> element("a", "Hardware") |> render_click()
assert html =~ "Class"
assert html =~ "Chassis 1"
end
end
end