Merge pull request #19295 from MathiasVP/cpp-add-mad-generation-library

C++: Instantiate model generation library

Author: MathiasVP

cpp/ql/lib/ext/generated/empty.model.yml

@@ -0,0 +1,5 @@
+extensions:
+  - addsTo:
+      pack: codeql/cpp-all
+      extensible: summaryModel
+    data: []

cpp/ql/lib/qlpack.yml

@@ -16,6 +16,7 @@ dependencies:
   codeql/xml: ${workspace}
 dataExtensions:
   - ext/*.model.yml
+  - ext/generated/*.model.yml
   - ext/deallocation/*.model.yml
   - ext/allocation/*.model.yml
 warnOnImplicitThis: true

cpp/ql/src/utils/modelgenerator/CaptureContentSummaryModels.ql

@@ -0,0 +1,13 @@
+/**
+ * @name Capture content based summary models.
+ * @description Finds applicable content based summary models to be used by other queries.
+ * @kind diagnostic
+ * @id cpp/utils/modelgenerator/contentbased-summary-models
+ * @tags modelgenerator
+ */
+
+import internal.CaptureModels
+
+from DataFlowSummaryTargetApi api, string flow
+where flow = ContentSensitive::captureFlow(api, _)
+select flow order by flow

cpp/ql/src/utils/modelgenerator/CaptureMixedNeutralModels.ql

@@ -0,0 +1,13 @@
+/**
+ * @name Capture mixed neutral models.
+ * @description Finds neutral models to be used by other queries.
+ * @kind diagnostic
+ * @id cpp/utils/modelgenerator/mixed-neutral-models
+ * @tags modelgenerator
+ */
+
+import internal.CaptureModels
+
+from DataFlowSummaryTargetApi api, string noflow
+where noflow = captureMixedNeutral(api)
+select noflow order by noflow

cpp/ql/src/utils/modelgenerator/CaptureMixedSummaryModels.ql

@@ -0,0 +1,13 @@
+/**
+ * @name Capture mixed summary models.
+ * @description Finds applicable summary models to be used by other queries.
+ * @kind diagnostic
+ * @id cpp/utils/modelgenerator/mixed-summary-models
+ * @tags modelgenerator
+ */
+
+import internal.CaptureModels
+
+from DataFlowSummaryTargetApi api, string flow
+where flow = captureMixedFlow(api, _)
+select flow order by flow

cpp/ql/src/utils/modelgenerator/CaptureNeutralModels.ql

@@ -0,0 +1,13 @@
+/**
+ * @name Capture neutral models.
+ * @description Finds neutral models to be used by other queries.
+ * @kind diagnostic
+ * @id cpp/utils/modelgenerator/neutral-models
+ * @tags modelgenerator
+ */
+
+import internal.CaptureModels
+
+from DataFlowSummaryTargetApi api, string noflow
+where noflow = captureNoFlow(api)
+select noflow order by noflow

cpp/ql/src/utils/modelgenerator/CaptureSinkModels.ql

@@ -0,0 +1,13 @@
+/**
+ * @name Capture sink models.
+ * @description Finds public methods that act as sinks as they flow into a known sink.
+ * @kind diagnostic
+ * @id cpp/utils/modelgenerator/sink-models
+ * @tags modelgenerator
+ */
+
+import internal.CaptureModels
+
+from DataFlowSinkTargetApi api, string sink
+where sink = captureSink(api)
+select sink order by sink

cpp/ql/src/utils/modelgenerator/CaptureSourceModels.ql

@@ -0,0 +1,13 @@
+/**
+ * @name Capture source models.
+ * @description Finds APIs that act as sources as they expose already known sources.
+ * @kind diagnostic
+ * @id cpp/utils/modelgenerator/source-models
+ * @tags modelgenerator
+ */
+
+import internal.CaptureModels
+
+from DataFlowSourceTargetApi api, string source
+where source = captureSource(api)
+select source order by source

cpp/ql/src/utils/modelgenerator/CaptureSummaryModels.ql

@@ -0,0 +1,13 @@
+/**
+ * @name Capture summary models.
+ * @description Finds applicable summary models to be used by other queries.
+ * @kind diagnostic
+ * @id cpp/utils/modelgenerator/summary-models
+ * @tags modelgenerator
+ */
+
+import internal.CaptureModels
+
+from DataFlowSummaryTargetApi api, string flow
+where flow = captureFlow(api)
+select flow order by flow

cpp/ql/src/utils/modelgenerator/GenerateFlowModel.py

@@ -0,0 +1,15 @@
+#!/usr/bin/python3
+
+import sys
+import os.path
+import subprocess
+
+# Add Model as Data script directory to sys.path.
+gitroot = subprocess.check_output(["git", "rev-parse", "--show-toplevel"]).decode("utf-8").strip()
+madpath = os.path.join(gitroot, "misc/scripts/models-as-data/")
+sys.path.append(madpath)
+
+import generate_flow_model as model
+
+language = "cpp"
+model.Generator.make(language).run()