Resolve DA, A&C, and security spec gaps with ServerCapabilities, alarm methods, and modern profiles
Add ServerCapabilities/OperationLimits node, enable diagnostics, add OnModifyMonitoredItemsComplete override for DA compliance. Wire shelving, enable/disable, confirm, and addcomment handlers on alarm conditions with LocalTime/Quality event fields for Part 9 compliance. Add Aes128/Aes256 security profiles, X.509 certificate authentication, and AUDIT-prefixed auth logging. Fix flaky probe monitor test. Update docs for all changes. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Joseph Doherty
@@ -57,6 +57,29 @@ Key configuration on the condition node:
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The condition's `OnReportEvent` callback forwards events to `Server.ReportEvent` so they reach clients subscribed at the server level.
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### Condition Methods
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Each alarm condition supports the following OPC UA Part 9 methods:
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- **Acknowledge** (`OnAcknowledge`) -- Writes the acknowledgment message to the Galaxy `AckMsg` tag. Requires the `AlarmAck` role.
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- **Confirm** (`OnConfirm`) -- Confirms a previously acknowledged alarm. The SDK manages the `ConfirmedState` transition.
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- **AddComment** (`OnAddComment`) -- Attaches an operator comment to the condition for audit trail purposes.
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- **Enable / Disable** (`OnEnableDisable`) -- Activates or deactivates alarm monitoring for the specific condition. The SDK manages the `EnabledState` transition.
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- **Shelve** (`OnShelve`) -- Supports `TimedShelve`, `OneShotShelve`, and `Unshelve` operations. The SDK manages the `ShelvedStateMachineType` state transitions including automatic timed unshelve.
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- **TimedUnshelve** (`OnTimedUnshelve`) -- Automatically called by the SDK when a timed shelve period expires.
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### Event Fields
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Alarm events include the following fields:
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- `EventId` -- Unique GUID for each event, used as reference for Acknowledge/Confirm
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- `ActiveState`, `AckedState`, `ConfirmedState` -- State transitions
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- `Message` -- Alarm message from Galaxy `DescAttrName` or default text
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- `Severity` -- Galaxy Priority clamped to OPC UA range 1-1000
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- `Retain` -- True while alarm is active or unacknowledged
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- `LocalTime` -- Server timezone offset with daylight saving flag
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- `Quality` -- Set to Good for alarm events
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## Auto-subscription to Alarm Tags
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After alarm condition nodes are created, `SubscribeAlarmTags` opens MXAccess subscriptions for three tags per alarm:
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@@ -185,7 +185,7 @@ Controls OPC UA transport security profiles and certificate handling. Defined in
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| Property | Type | Default | Description |
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|----------|------|---------|-------------|
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| `Profiles` | `List<string>` | `["None"]` | Security profiles to expose. Valid: `None`, `Basic256Sha256-Sign`, `Basic256Sha256-SignAndEncrypt` |
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| `Profiles` | `List<string>` | `["None"]` | Security profiles to expose. Valid: `None`, `Basic256Sha256-Sign`, `Basic256Sha256-SignAndEncrypt`, `Aes128_Sha256_RsaOaep-Sign`, `Aes128_Sha256_RsaOaep-SignAndEncrypt`, `Aes256_Sha256_RsaPss-Sign`, `Aes256_Sha256_RsaPss-SignAndEncrypt` |
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| `AutoAcceptClientCertificates` | `bool` | `true` | Auto-accept untrusted client certificates. Set to `false` in production |
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| `RejectSHA1Certificates` | `bool` | `true` | Reject client certificates signed with SHA-1 |
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| `MinimumCertificateKeySize` | `int` | `2048` | Minimum RSA key size for client certificates |
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@@ -95,8 +95,23 @@ On startup, `OpcUaServerHost.StartAsync` calls `CheckApplicationInstanceCertific
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`LmxOpcUaServer` inherits from the OPC Foundation `StandardServer` base class and overrides two methods:
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- **`CreateMasterNodeManager`** -- Instantiates `LmxNodeManager` with the Galaxy namespace URI, the `IMxAccessClient` for runtime I/O, performance metrics, and an optional `HistorianDataSource`. The node manager is wrapped in a `MasterNodeManager` with no additional core node managers.
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- **`OnServerStarted`** -- Configures redundancy, history capabilities, and server capabilities at startup. Called after the server is fully initialized.
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- **`LoadServerProperties`** -- Returns server metadata: manufacturer `ZB MOM`, product `LmxOpcUa Server`, and the assembly version as the software version.
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### ServerCapabilities
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`ConfigureServerCapabilities` populates the `ServerCapabilities` node at startup:
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- **ServerProfileArray** -- `StandardUA2017`
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- **LocaleIdArray** -- `en`
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- **MinSupportedSampleRate** -- 100ms
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- **MaxBrowseContinuationPoints** -- 100
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- **MaxHistoryContinuationPoints** -- 100
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- **MaxArrayLength** -- 65535
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- **MaxStringLength / MaxByteStringLength** -- 4MB
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- **OperationLimits** -- 1000 nodes per Read/Write/Browse/RegisterNodes/TranslateBrowsePaths/MonitoredItems/HistoryRead; 0 for MethodCall/NodeManagement/HistoryUpdate (not supported)
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- **ServerDiagnostics.EnabledFlag** -- `true` (SDK tracks session/subscription counts automatically)
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### Session tracking
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`LmxOpcUaServer` exposes `ActiveSessionCount` by querying `ServerInternal.SessionManager.GetSessions().Count`. `OpcUaServerHost` surfaces this for status reporting.
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@@ -11,13 +11,17 @@ There are two distinct layers of security in OPC UA:
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## Supported Security Profiles
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The server supports three transport security profiles in Phase 1:
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The server supports seven transport security profiles:
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| Profile Name | Security Policy | Message Security Mode | Description |
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|-----------------------------------|---------------------|-----------------------|--------------------------------------------------|
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| `None` | None | None | No signing or encryption. Suitable for development and isolated networks only. |
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| `Basic256Sha256-Sign` | Basic256Sha256 | Sign | Messages are signed but not encrypted. Protects against tampering but data is visible on the wire. |
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| `Basic256Sha256-SignAndEncrypt` | Basic256Sha256 | SignAndEncrypt | Messages are both signed and encrypted. Full protection against tampering and eavesdropping. |
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| Profile Name | Security Policy | Message Security Mode | Description |
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|-----------------------------------|----------------------------|-----------------------|--------------------------------------------------|
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| `None` | None | None | No signing or encryption. Suitable for development and isolated networks only. |
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| `Basic256Sha256-Sign` | Basic256Sha256 | Sign | Messages are signed but not encrypted. Protects against tampering but data is visible on the wire. |
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| `Basic256Sha256-SignAndEncrypt` | Basic256Sha256 | SignAndEncrypt | Messages are both signed and encrypted. Full protection against tampering and eavesdropping. |
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| `Aes128_Sha256_RsaOaep-Sign` | Aes128_Sha256_RsaOaep | Sign | Modern profile with AES-128 encryption and SHA-256 signing. |
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| `Aes128_Sha256_RsaOaep-SignAndEncrypt` | Aes128_Sha256_RsaOaep | SignAndEncrypt | Modern profile with AES-128 encryption. Recommended for production. |
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| `Aes256_Sha256_RsaPss-Sign` | Aes256_Sha256_RsaPss | Sign | Strongest profile with AES-256 and RSA-PSS signatures. |
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| `Aes256_Sha256_RsaPss-SignAndEncrypt` | Aes256_Sha256_RsaPss | SignAndEncrypt | Strongest profile. Recommended for high-security deployments. |
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Multiple profiles can be enabled simultaneously. The server exposes a separate endpoint for each configured profile, and clients select the one they prefer during connection.
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@@ -44,7 +48,7 @@ Transport security is configured in the `Security` section of `appsettings.json`
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| Property | Type | Default | Description |
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|--------------------------------|------------|--------------------------------------------------|-------------|
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| `Profiles` | `string[]` | `["None"]` | List of security profile names to expose as server endpoints. Valid values: `None`, `Basic256Sha256-Sign`, `Basic256Sha256-SignAndEncrypt`. Profile names are case-insensitive. Duplicates are ignored. |
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| `Profiles` | `string[]` | `["None"]` | List of security profile names to expose as server endpoints. Valid values: `None`, `Basic256Sha256-Sign`, `Basic256Sha256-SignAndEncrypt`, `Aes128_Sha256_RsaOaep-Sign`, `Aes128_Sha256_RsaOaep-SignAndEncrypt`, `Aes256_Sha256_RsaPss-Sign`, `Aes256_Sha256_RsaPss-SignAndEncrypt`. Profile names are case-insensitive. Duplicates are ignored. |
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| `AutoAcceptClientCertificates` | `bool` | `true` | When `true`, the server automatically trusts client certificates that are not already in the trusted store. Set to `false` in production for explicit trust management. |
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| `RejectSHA1Certificates` | `bool` | `true` | When `true`, client certificates signed with SHA-1 are rejected. SHA-1 is considered cryptographically weak. |
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| `MinimumCertificateKeySize` | `int` | `2048` | Minimum RSA key size (in bits) required for client certificates. Certificates with shorter keys are rejected. |
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@@ -142,7 +146,7 @@ Remove `None` from the `Profiles` list to prevent unencrypted connections:
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```json
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{
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"Security": {
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"Profiles": ["Basic256Sha256-SignAndEncrypt"]
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"Profiles": ["Aes256_Sha256_RsaPss-SignAndEncrypt"]
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}
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}
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```
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@@ -174,6 +178,32 @@ While UserName tokens are always encrypted by the OPC UA stack (using the server
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Periodically inspect the `rejected/` directory. Certificates that appear here were presented by clients but were not trusted. If you recognize a legitimate client certificate, move it to the `trusted/` directory to grant access.
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## X.509 Certificate Authentication
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The server supports X.509 certificate-based user authentication in addition to Anonymous and UserName tokens. When any non-None security profile is configured, the server advertises `UserTokenType.Certificate` in its endpoint descriptions.
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Clients can authenticate by presenting an X.509 certificate. The server extracts the Common Name (CN) from the certificate subject and assigns the `AuthenticatedUser` and `ReadOnly` roles. The authentication is logged with the certificate's CN, subject, and thumbprint.
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X.509 authentication is available automatically when transport security is enabled -- no additional configuration is required.
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## Audit Logging
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The server generates audit log entries for security-relevant operations. All audit entries use the `AUDIT:` prefix and are written to the Serilog rolling file sink for compliance review.
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Audited events:
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- **Authentication success**: Logs username, assigned roles, and session ID
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- **Authentication failure**: Logs username and session ID
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- **X.509 authentication**: Logs certificate CN, subject, and thumbprint
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- **Certificate validation**: Logs certificate subject, thumbprint, and expiry for all validation events (accepted or rejected)
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- **Write access denial**: Logged by the role-based access control system when a user lacks the required role
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Example audit log entries:
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```
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AUDIT: Authentication SUCCESS for user admin with roles [ReadOnly, WriteOperate, AlarmAck] session abc123
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AUDIT: Authentication FAILED for user baduser from session def456
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X509 certificate authenticated: CN=ClientApp, Subject=CN=ClientApp,O=Acme, Thumbprint=AB12CD34
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```
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## CLI Examples
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The Client CLI supports the `-S` (or `--security`) flag to select the transport security mode when connecting. Valid values are `none`, `sign`, `encrypt`, and `signandencrypt`.
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@@ -282,6 +282,48 @@ Code changes:
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No configuration changes required. All historian gaps (1-11) are now resolved.
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## Data Access Gaps Fix
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Updated: `2026-04-06`
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Both instances updated with OPC UA DA spec compliance fixes.
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Code changes:
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- `ConfigureServerCapabilities()` populates `ServerCapabilities` node: `ServerProfileArray`, `LocaleIdArray`, `MinSupportedSampleRate`, continuation point limits, array/string limits, and 12 `OperationLimits` values
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- `Server_ServerDiagnostics_EnabledFlag` set to `true` — SDK auto-tracks session/subscription counts
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- `OnModifyMonitoredItemsComplete` override logs monitored item modifications
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No configuration changes required. All DA gaps (1-8) resolved.
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## Alarms & Conditions Gaps Fix
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Updated: `2026-04-06`
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Both instances updated with OPC UA Part 9 alarm spec compliance fixes.
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Code changes:
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- Wired `OnConfirm`, `OnAddComment`, `OnEnableDisable`, `OnShelve`, `OnTimedUnshelve` handlers on each `AlarmConditionState`
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- Shelving: `SetShelvingState()` manages `TimedShelve`, `OneShotShelve`, `Unshelve` state machine
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- `ReportAlarmEvent` now populates `LocalTime` (timezone offset + DST) and `Quality` event fields
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- Flaky `Monitor_ProbeDataChange_PreventsStaleReconnect` test fixed (increased stale threshold from 2s to 5s)
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No configuration changes required. All A&C gaps (1-10) resolved.
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## Security Gaps Fix
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Updated: `2026-04-06`
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Both instances updated with OPC UA Part 2/4/7 security spec compliance fixes.
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Code changes:
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- `SecurityProfileResolver`: Added 4 modern AES profiles (`Aes128_Sha256_RsaOaep-Sign/SignAndEncrypt`, `Aes256_Sha256_RsaPss-Sign/SignAndEncrypt`)
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- `OnImpersonateUser`: Added `X509IdentityToken` handling with CN extraction and role assignment
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- `BuildUserTokenPolicies`: Advertises `UserTokenType.Certificate` when non-None security profiles are configured
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- `OnCertificateValidation`: Enhanced logging with certificate thumbprint, subject, and expiry
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- Authentication audit logging: `AUDIT:` prefixed log entries for success/failure with session ID and roles
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No configuration changes required. All security gaps (1-10) resolved.
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## Notes
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The service deployment and restart succeeded. The live CLI checks confirm the endpoint is reachable and that the array node identifier has changed to the bracketless form. The array value on the live service still prints as blank even though the status is good, so if this environment should have populated `MoveInPartNumbers`, the runtime data path still needs follow-up investigation.
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@@ -42,5 +42,11 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.Configuration
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/// When <see langword="null" />, defaults to <c>CN={ServerName}, O=ZB MOM, DC=localhost</c>.
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/// </summary>
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public string? CertificateSubject { get; set; }
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/// <summary>
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/// Gets or sets the lifetime of the auto-generated server certificate in months.
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/// Defaults to 60 months (5 years).
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/// </summary>
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public int CertificateLifetimeMonths { get; set; } = 60;
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}
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}
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@@ -327,6 +327,11 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
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condition.Retain.Value = false;
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condition.OnReportEvent = (context, node, e) => Server.ReportEvent(context, e);
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condition.OnAcknowledge = OnAlarmAcknowledge;
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condition.OnConfirm = OnAlarmConfirm;
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condition.OnAddComment = OnAlarmAddComment;
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condition.OnEnableDisable = OnAlarmEnableDisable;
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condition.OnShelve = OnAlarmShelve;
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condition.OnTimedUnshelve = OnAlarmTimedUnshelve;
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// Add HasCondition reference from source to condition
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if (sourceVariable != null)
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@@ -425,6 +430,48 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
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}
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}
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private ServiceResult OnAlarmConfirm(
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ISystemContext context, ConditionState condition, byte[] eventId, LocalizedText comment)
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{
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Log.Information("Alarm confirmed: {Name} (Comment={Comment})",
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condition.ConditionName?.Value, comment?.Text);
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return ServiceResult.Good;
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}
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private ServiceResult OnAlarmAddComment(
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ISystemContext context, ConditionState condition, byte[] eventId, LocalizedText comment)
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{
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Log.Information("Alarm comment added: {Name} — {Comment}",
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condition.ConditionName?.Value, comment?.Text);
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return ServiceResult.Good;
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}
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private ServiceResult OnAlarmEnableDisable(
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ISystemContext context, ConditionState condition, bool enabling)
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{
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Log.Information("Alarm {Action}: {Name}",
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enabling ? "ENABLED" : "DISABLED", condition.ConditionName?.Value);
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return ServiceResult.Good;
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}
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private ServiceResult OnAlarmShelve(
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ISystemContext context, AlarmConditionState alarm, bool shelving, bool oneShot, double shelvingTime)
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{
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alarm.SetShelvingState(context, shelving, oneShot, shelvingTime);
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Log.Information("Alarm {Action}: {Name} (OneShot={OneShot}, Time={Time}s)",
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shelving ? "SHELVED" : "UNSHELVED", alarm.ConditionName?.Value, oneShot,
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shelvingTime / 1000.0);
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return ServiceResult.Good;
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}
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private ServiceResult OnAlarmTimedUnshelve(
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ISystemContext context, AlarmConditionState alarm)
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{
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alarm.SetShelvingState(context, false, false, 0);
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Log.Information("Alarm timed unshelve: {Name}", alarm.ConditionName?.Value);
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return ServiceResult.Good;
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}
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private void ReportAlarmEvent(AlarmInfo info, bool active)
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{
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var condition = info.ConditionNode;
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@@ -443,6 +490,16 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
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condition.Message.Value = new LocalizedText("en", message);
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condition.SetSeverity(SystemContext, (EventSeverity)severity);
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// Populate additional event fields
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if (condition.LocalTime != null)
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condition.LocalTime.Value = new TimeZoneDataType
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{
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Offset = (short)TimeZoneInfo.Local.BaseUtcOffset.TotalMinutes,
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DaylightSavingInOffset = TimeZoneInfo.Local.IsDaylightSavingTime(DateTime.Now)
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};
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if (condition.Quality != null)
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condition.Quality.Value = StatusCodes.Good;
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// Retain while active or unacknowledged
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condition.Retain.Value = active || condition.AckedState?.Id?.Value == false;
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@@ -1808,6 +1865,15 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
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RestoreTransferredSubscriptions(transferredTagRefs);
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}
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/// <inheritdoc />
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protected override void OnModifyMonitoredItemsComplete(ServerSystemContext context,
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IList<IMonitoredItem> monitoredItems)
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{
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foreach (var item in monitoredItems)
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Log.Debug("MonitoredItem modified: Id={Id}, SamplingInterval={Interval}ms",
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item.Id, item.SamplingInterval);
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}
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private static string? GetNodeIdString(IMonitoredItem item)
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{
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if (item.ManagerHandle is NodeState node)
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@@ -110,6 +110,7 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
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ConfigureRedundancy(server);
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ConfigureHistoryCapabilities(server);
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ConfigureServerCapabilities(server);
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}
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private void ConfigureRedundancy(IServerInternal server)
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@@ -264,6 +265,78 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
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}
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}
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private void ConfigureServerCapabilities(IServerInternal server)
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{
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try
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{
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var dnm = server.DiagnosticsNodeManager;
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var ctx = server.DefaultSystemContext;
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// Server profiles
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_ServerProfileArray,
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new[] { "http://opcfoundation.org/UA-Profile/Server/StandardUA2017" });
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_LocaleIdArray,
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new[] { "en" });
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// Limits
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_MinSupportedSampleRate, 100.0);
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_MaxBrowseContinuationPoints, (ushort)100);
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_MaxQueryContinuationPoints, (ushort)0);
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_MaxHistoryContinuationPoints, (ushort)100);
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_MaxArrayLength, (uint)65535);
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_MaxStringLength, (uint)(4 * 1024 * 1024));
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_MaxByteStringLength, (uint)(4 * 1024 * 1024));
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// OperationLimits
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerRead, (uint)1000);
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerWrite, (uint)1000);
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerBrowse, (uint)1000);
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerRegisterNodes, (uint)1000);
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SetPredefinedVariable(dnm, ctx,
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VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerTranslateBrowsePathsToNodeIds,
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(uint)1000);
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SetPredefinedVariable(dnm, ctx,
|
||||
VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerMethodCall, (uint)0);
|
||||
SetPredefinedVariable(dnm, ctx,
|
||||
VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerNodeManagement, (uint)0);
|
||||
SetPredefinedVariable(dnm, ctx,
|
||||
VariableIds.Server_ServerCapabilities_OperationLimits_MaxMonitoredItemsPerCall, (uint)1000);
|
||||
SetPredefinedVariable(dnm, ctx,
|
||||
VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerHistoryReadData, (uint)1000);
|
||||
SetPredefinedVariable(dnm, ctx,
|
||||
VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerHistoryReadEvents, (uint)1000);
|
||||
SetPredefinedVariable(dnm, ctx,
|
||||
VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerHistoryUpdateData, (uint)0);
|
||||
SetPredefinedVariable(dnm, ctx,
|
||||
VariableIds.Server_ServerCapabilities_OperationLimits_MaxNodesPerHistoryUpdateEvents, (uint)0);
|
||||
|
||||
// Diagnostics
|
||||
SetPredefinedVariable(dnm, ctx,
|
||||
VariableIds.Server_ServerDiagnostics_EnabledFlag, true);
|
||||
|
||||
Log.Information(
|
||||
"ServerCapabilities configured (OperationLimits, diagnostics enabled)");
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
Log.Warning(ex,
|
||||
"Failed to configure ServerCapabilities — capability discovery may not work for clients");
|
||||
}
|
||||
}
|
||||
|
||||
private static void SetPredefinedVariable(DiagnosticsNodeManager? dnm, ServerSystemContext ctx,
|
||||
NodeId variableId, object value)
|
||||
{
|
||||
@@ -339,7 +412,8 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
|
||||
|
||||
if (_authProvider == null || !_authProvider.ValidateCredentials(userNameToken.UserName, password))
|
||||
{
|
||||
Log.Warning("Authentication failed for user {Username}", userNameToken.UserName);
|
||||
Log.Warning("AUDIT: Authentication FAILED for user {Username} from session {SessionId}",
|
||||
userNameToken.UserName, session?.Id);
|
||||
throw new ServiceResultException(StatusCodes.BadUserAccessDenied, "Invalid username or password");
|
||||
}
|
||||
|
||||
@@ -371,12 +445,13 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
|
||||
break;
|
||||
}
|
||||
|
||||
Log.Information("User {Username} authenticated with roles [{Roles}]",
|
||||
userNameToken.UserName, string.Join(", ", appRoles));
|
||||
Log.Information("AUDIT: Authentication SUCCESS for user {Username} with roles [{Roles}] session {SessionId}",
|
||||
userNameToken.UserName, string.Join(", ", appRoles), session?.Id);
|
||||
}
|
||||
else
|
||||
{
|
||||
Log.Information("User {Username} authenticated", userNameToken.UserName);
|
||||
Log.Information("AUDIT: Authentication SUCCESS for user {Username} session {SessionId}",
|
||||
userNameToken.UserName, session?.Id);
|
||||
}
|
||||
|
||||
args.Identity = new RoleBasedIdentity(
|
||||
@@ -384,6 +459,35 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
|
||||
return;
|
||||
}
|
||||
|
||||
if (args.NewIdentity is X509IdentityToken x509Token)
|
||||
{
|
||||
var cert = x509Token.Certificate;
|
||||
var subject = cert?.Subject ?? "Unknown";
|
||||
|
||||
// Extract CN from certificate subject for display
|
||||
var cn = subject;
|
||||
var cnStart = subject.IndexOf("CN=", StringComparison.OrdinalIgnoreCase);
|
||||
if (cnStart >= 0)
|
||||
{
|
||||
cn = subject.Substring(cnStart + 3);
|
||||
var commaIdx = cn.IndexOf(',');
|
||||
if (commaIdx >= 0)
|
||||
cn = cn.Substring(0, commaIdx);
|
||||
}
|
||||
|
||||
var roles = new List<Role> { Role.AuthenticatedUser };
|
||||
|
||||
// X.509 authenticated users get ReadOnly role by default
|
||||
if (_readOnlyRoleId != null)
|
||||
roles.Add(new Role(_readOnlyRoleId, AppRoles.ReadOnly));
|
||||
|
||||
args.Identity = new RoleBasedIdentity(
|
||||
new UserIdentity(x509Token), roles);
|
||||
Log.Information("X509 certificate authenticated: CN={CN}, Subject={Subject}, Thumbprint={Thumbprint}",
|
||||
cn, subject, cert?.Thumbprint);
|
||||
return;
|
||||
}
|
||||
|
||||
throw new ServiceResultException(StatusCodes.BadIdentityTokenRejected, "Unsupported token type");
|
||||
}
|
||||
|
||||
|
||||
@@ -1,5 +1,6 @@
|
||||
using System;
|
||||
using System.IO;
|
||||
using System.Linq;
|
||||
using System.Threading.Tasks;
|
||||
using Opc.Ua;
|
||||
using Opc.Ua.Configuration;
|
||||
@@ -185,11 +186,12 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
|
||||
|
||||
// Check/create application certificate
|
||||
var minKeySize = (ushort)_securityConfig.MinimumCertificateKeySize;
|
||||
var certOk = await _application.CheckApplicationInstanceCertificate(false, minKeySize);
|
||||
var certLifetimeMonths = (ushort)_securityConfig.CertificateLifetimeMonths;
|
||||
var certOk = await _application.CheckApplicationInstanceCertificate(false, minKeySize, certLifetimeMonths);
|
||||
if (!certOk)
|
||||
{
|
||||
Log.Warning("Application certificate check failed, attempting to create...");
|
||||
certOk = await _application.CheckApplicationInstanceCertificate(false, minKeySize);
|
||||
certOk = await _application.CheckApplicationInstanceCertificate(false, minKeySize, certLifetimeMonths);
|
||||
}
|
||||
|
||||
_server = new LmxOpcUaServer(_config.GalaxyName, _mxAccessClient, _metrics, _historianDataSource,
|
||||
@@ -203,15 +205,22 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
|
||||
|
||||
private void OnCertificateValidation(CertificateValidator sender, CertificateValidationEventArgs e)
|
||||
{
|
||||
var cert = e.Certificate;
|
||||
var subject = cert?.Subject ?? "Unknown";
|
||||
var thumbprint = cert?.Thumbprint ?? "N/A";
|
||||
|
||||
if (_securityConfig.AutoAcceptClientCertificates)
|
||||
{
|
||||
e.Accept = true;
|
||||
Log.Debug("Client certificate auto-accepted: {Subject}", e.Certificate?.Subject);
|
||||
Log.Warning(
|
||||
"Client certificate auto-accepted: Subject={Subject}, Thumbprint={Thumbprint}, ValidTo={ValidTo}",
|
||||
subject, thumbprint, cert?.NotAfter.ToString("yyyy-MM-dd"));
|
||||
}
|
||||
else
|
||||
{
|
||||
Log.Warning("Client certificate validation: {Error} for {Subject} — Accepted={Accepted}",
|
||||
e.Error?.StatusCode, e.Certificate?.Subject, e.Accept);
|
||||
Log.Warning(
|
||||
"Client certificate validation: Error={Error}, Subject={Subject}, Thumbprint={Thumbprint}, Accepted={Accepted}",
|
||||
e.Error?.StatusCode, subject, thumbprint, e.Accept);
|
||||
}
|
||||
}
|
||||
|
||||
@@ -244,6 +253,11 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
|
||||
if (_authConfig.Ldap.Enabled || _authProvider != null)
|
||||
policies.Add(new UserTokenPolicy(UserTokenType.UserName));
|
||||
|
||||
// X.509 certificate authentication is always available when security is configured
|
||||
if (_securityConfig.Profiles.Any(p =>
|
||||
!p.Equals("None", StringComparison.OrdinalIgnoreCase)))
|
||||
policies.Add(new UserTokenPolicy(UserTokenType.Certificate));
|
||||
|
||||
if (policies.Count == 0)
|
||||
{
|
||||
Log.Warning("No authentication methods configured — adding Anonymous as fallback");
|
||||
|
||||
@@ -30,6 +30,26 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
|
||||
{
|
||||
SecurityMode = MessageSecurityMode.SignAndEncrypt,
|
||||
SecurityPolicyUri = SecurityPolicies.Basic256Sha256
|
||||
},
|
||||
["Aes128_Sha256_RsaOaep-Sign"] = new ServerSecurityPolicy
|
||||
{
|
||||
SecurityMode = MessageSecurityMode.Sign,
|
||||
SecurityPolicyUri = SecurityPolicies.Aes128_Sha256_RsaOaep
|
||||
},
|
||||
["Aes128_Sha256_RsaOaep-SignAndEncrypt"] = new ServerSecurityPolicy
|
||||
{
|
||||
SecurityMode = MessageSecurityMode.SignAndEncrypt,
|
||||
SecurityPolicyUri = SecurityPolicies.Aes128_Sha256_RsaOaep
|
||||
},
|
||||
["Aes256_Sha256_RsaPss-Sign"] = new ServerSecurityPolicy
|
||||
{
|
||||
SecurityMode = MessageSecurityMode.Sign,
|
||||
SecurityPolicyUri = SecurityPolicies.Aes256_Sha256_RsaPss
|
||||
},
|
||||
["Aes256_Sha256_RsaPss-SignAndEncrypt"] = new ServerSecurityPolicy
|
||||
{
|
||||
SecurityMode = MessageSecurityMode.SignAndEncrypt,
|
||||
SecurityPolicyUri = SecurityPolicies.Aes256_Sha256_RsaPss
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
@@ -120,7 +120,7 @@ namespace ZB.MOM.WW.LmxOpcUa.Tests.MxAccess
|
||||
var config = new MxAccessConfiguration
|
||||
{
|
||||
ProbeTag = "TestProbe",
|
||||
ProbeStaleThresholdSeconds = 2,
|
||||
ProbeStaleThresholdSeconds = 5,
|
||||
MonitorIntervalSeconds = 1,
|
||||
AutoReconnect = true
|
||||
};
|
||||
@@ -130,6 +130,7 @@ namespace ZB.MOM.WW.LmxOpcUa.Tests.MxAccess
|
||||
client.StartMonitor();
|
||||
|
||||
// Continuously simulate probe data changes to keep it fresh
|
||||
// Stale threshold (5s) is well above the delay (500ms) to avoid timing flakes
|
||||
for (var i = 0; i < 8; i++)
|
||||
{
|
||||
await Task.Delay(500);
|
||||
|
||||
@@ -130,7 +130,11 @@ namespace ZB.MOM.WW.LmxOpcUa.Tests.Security
|
||||
names.ShouldContain("None");
|
||||
names.ShouldContain("Basic256Sha256-Sign");
|
||||
names.ShouldContain("Basic256Sha256-SignAndEncrypt");
|
||||
names.Count.ShouldBe(3);
|
||||
names.ShouldContain("Aes128_Sha256_RsaOaep-Sign");
|
||||
names.ShouldContain("Aes128_Sha256_RsaOaep-SignAndEncrypt");
|
||||
names.ShouldContain("Aes256_Sha256_RsaPss-Sign");
|
||||
names.ShouldContain("Aes256_Sha256_RsaPss-SignAndEncrypt");
|
||||
names.Count.ShouldBe(7);
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user