Merge branch 'main' into rust-ti-implementing-type-method

.github/workflows/mad_modelDiff.yml

@@ -68,7 +68,7 @@ jobs:
             DATABASE=$2
             cd codeql-$QL_VARIANT
             SHORTNAME=`basename $DATABASE`
-            python java/ql/src/utils/modelgenerator/GenerateFlowModel.py --with-summaries --with-sinks $DATABASE $SHORTNAME/$QL_VARIANT
+            python misc/scripts/models-as-data/generate_mad.py --language java --with-summaries --with-sinks $DATABASE $SHORTNAME/$QL_VARIANT
             mkdir -p $MODELS/$SHORTNAME
             mv java/ql/lib/ext/generated/$SHORTNAME/$QL_VARIANT $MODELS/$SHORTNAME
             cd ..

CODEOWNERS

@@ -17,6 +17,7 @@
 
 # Experimental CodeQL cryptography
 **/experimental/quantum/ @github/ps-codeql
+/shared/quantum/ @github/ps-codeql
 
 # CodeQL tools and associated docs
 /docs/codeql/codeql-cli/ @github/codeql-cli-reviewers

MODULE.bazel

@@ -24,7 +24,7 @@ bazel_dep(name = "bazel_skylib", version = "1.7.1")
 bazel_dep(name = "abseil-cpp", version = "20240116.1", repo_name = "absl")
 bazel_dep(name = "nlohmann_json", version = "3.11.3", repo_name = "json")
 bazel_dep(name = "fmt", version = "10.0.0")
-bazel_dep(name = "rules_kotlin", version = "2.0.0-codeql.1")
+bazel_dep(name = "rules_kotlin", version = "2.1.3-codeql.1")
 bazel_dep(name = "gazelle", version = "0.40.0")
 bazel_dep(name = "rules_dotnet", version = "0.17.4")
 bazel_dep(name = "googletest", version = "1.14.0.bcr.1")
@@ -193,10 +193,6 @@ use_repo(
     kotlin_extractor_deps,
     "codeql_kotlin_defaults",
     "codeql_kotlin_embeddable",
-    "kotlin-compiler-1.5.0",
-    "kotlin-compiler-1.5.10",
-    "kotlin-compiler-1.5.20",
-    "kotlin-compiler-1.5.30",
     "kotlin-compiler-1.6.0",
     "kotlin-compiler-1.6.20",
     "kotlin-compiler-1.7.0",
@@ -208,10 +204,7 @@ use_repo(
     "kotlin-compiler-2.0.20-Beta2",
     "kotlin-compiler-2.1.0-Beta1",
     "kotlin-compiler-2.1.20-Beta1",
-    "kotlin-compiler-embeddable-1.5.0",
-    "kotlin-compiler-embeddable-1.5.10",
-    "kotlin-compiler-embeddable-1.5.20",
-    "kotlin-compiler-embeddable-1.5.30",
+    "kotlin-compiler-2.2.0-Beta1",
     "kotlin-compiler-embeddable-1.6.0",
     "kotlin-compiler-embeddable-1.6.20",
     "kotlin-compiler-embeddable-1.7.0",
@@ -223,10 +216,7 @@ use_repo(
     "kotlin-compiler-embeddable-2.0.20-Beta2",
     "kotlin-compiler-embeddable-2.1.0-Beta1",
     "kotlin-compiler-embeddable-2.1.20-Beta1",
-    "kotlin-stdlib-1.5.0",
-    "kotlin-stdlib-1.5.10",
-    "kotlin-stdlib-1.5.20",
-    "kotlin-stdlib-1.5.30",
+    "kotlin-compiler-embeddable-2.2.0-Beta1",
     "kotlin-stdlib-1.6.0",
     "kotlin-stdlib-1.6.20",
     "kotlin-stdlib-1.7.0",
@@ -238,6 +228,7 @@ use_repo(
     "kotlin-stdlib-2.0.20-Beta2",
     "kotlin-stdlib-2.1.0-Beta1",
     "kotlin-stdlib-2.1.20-Beta1",
+    "kotlin-stdlib-2.2.0-Beta1",
 )
 
 go_sdk = use_extension("@rules_go//go:extensions.bzl", "go_sdk")

actions/ql/lib/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.4.9
+
+No user-facing changes.
+
 ## 0.4.8
 
 No user-facing changes.

actions/ql/lib/change-notes/released/0.4.9.md

@@ -0,0 +1,3 @@
+## 0.4.9
+
+No user-facing changes.

actions/ql/lib/codeql-pack.release.yml

@@ -1,2 +1,2 @@
 ---
-lastReleaseVersion: 0.4.8
+lastReleaseVersion: 0.4.9

actions/ql/lib/qlpack.yml

@@ -1,5 +1,5 @@
 name: codeql/actions-all
-version: 0.4.9-dev
+version: 0.4.10-dev
 library: true
 warnOnImplicitThis: true
 dependencies:

actions/ql/src/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.6.1
+
+No user-facing changes.
+
 ## 0.6.0
 
 ### Breaking Changes

actions/ql/src/change-notes/released/0.6.1.md

@@ -0,0 +1,3 @@
+## 0.6.1
+
+No user-facing changes.

actions/ql/src/codeql-pack.release.yml

@@ -1,2 +1,2 @@
 ---
-lastReleaseVersion: 0.6.0
+lastReleaseVersion: 0.6.1

actions/ql/src/qlpack.yml

@@ -1,5 +1,5 @@
 name: codeql/actions-queries
-version: 0.6.1-dev
+version: 0.6.2-dev
 library: false
 warnOnImplicitThis: true
 groups: [actions, queries]

cpp/ql/integration-tests/query-suite/not_included_in_qls.expected

@@ -299,6 +299,7 @@ ql/cpp/ql/src/experimental/cryptography/inventory/new_models/SigningAlgorithms.q
 ql/cpp/ql/src/experimental/cryptography/inventory/new_models/SymmetricEncryptionAlgorithms.ql
 ql/cpp/ql/src/experimental/cryptography/inventory/new_models/SymmetricPaddingAlgorithms.ql
 ql/cpp/ql/src/experimental/cryptography/inventory/new_models/UnknownAsymmetricKeyGeneration.ql
+ql/cpp/ql/src/experimental/quantum/PrintCBOMGraph.ql
 ql/cpp/ql/src/external/examples/filters/BumpMetricBy10.ql
 ql/cpp/ql/src/external/examples/filters/EditDefectMessage.ql
 ql/cpp/ql/src/external/examples/filters/ExcludeGeneratedCode.ql

cpp/ql/lib/CHANGELOG.md

@@ -1,3 +1,9 @@
+## 4.3.1
+
+### Bug Fixes
+
+* Fixed an infinite loop in `semmle.code.cpp.rangeanalysis.new.RangeAnalysis` when computing ranges in very large and complex function bodies.
+
 ## 4.3.0
 
 ### New Features

cpp/ql/lib/change-notes/2025-05-15-class-aggregate-literals.md

@@ -0,0 +1,4 @@
+---
+category: fix
+---
+* Fixed a problem where `asExpr()` on `DataFlow::Node` would never return `ClassAggregateLiteral`s.

cpp/ql/lib/change-notes/2025-05-16-array-aggregate-literals.md

@@ -0,0 +1,4 @@
+---
+category: fix
+---
+* Fixed a problem where `asExpr()` on `DataFlow::Node` would never return `ArrayAggregateLiteral`s.

cpp/ql/lib/change-notes/2025-05-16-wmain-support.md

@@ -0,0 +1,4 @@
+---
+category: feature
+---
+* Added support for `wmain` as part of the ArgvSource model.

cpp/ql/lib/change-notes/2025-05-18-2025-May-outdated-deprecations.md

@@ -0,0 +1,9 @@
+---
+category: breaking
+---
+* Deleted the deprecated `userInputArgument` predicate and its convenience accessor from the `Security.qll`.
+* Deleted the deprecated `userInputReturned` predicate and its convenience accessor from the `Security.qll`.
+* Deleted the deprecated `userInputReturn` predicate from the `Security.qll`.
+* Deleted the deprecated `isUserInput` predicate and its convenience accessor from the `Security.qll`.
+* Deleted the deprecated `userInputArgument` predicate from the `SecurityOptions.qll`.
+* Deleted the deprecated `userInputReturned` predicate from the `SecurityOptions.qll`.

cpp/ql/lib/change-notes/released/4.3.1.md

@@ -0,0 +1,5 @@
+## 4.3.1
+
+### Bug Fixes
+
+* Fixed an infinite loop in `semmle.code.cpp.rangeanalysis.new.RangeAnalysis` when computing ranges in very large and complex function bodies.

cpp/ql/lib/codeql-pack.release.yml

@@ -1,2 +1,2 @@
 ---
-lastReleaseVersion: 4.3.0
+lastReleaseVersion: 4.3.1

cpp/ql/lib/experimental/quantum/Language.qll

@@ -0,0 +1,113 @@
+private import cpp as Language
+import semmle.code.cpp.dataflow.new.DataFlow
+import codeql.quantum.experimental.Model
+
+module CryptoInput implements InputSig<Language::Location> {
+  class DataFlowNode = DataFlow::Node;
+
+  class LocatableElement = Language::Locatable;
+
+  class UnknownLocation = Language::UnknownDefaultLocation;
+
+  LocatableElement dfn_to_element(DataFlow::Node node) {
+    result = node.asExpr() or
+    result = node.asParameter() or
+    result = node.asVariable()
+  }
+
+  string locationToFileBaseNameAndLineNumberString(Location location) {
+    result = location.getFile().getBaseName() + ":" + location.getStartLine()
+  }
+
+  predicate artifactOutputFlowsToGenericInput(
+    DataFlow::Node artifactOutput, DataFlow::Node otherInput
+  ) {
+    ArtifactFlow::flow(artifactOutput, otherInput)
+  }
+}
+
+module Crypto = CryptographyBase<Language::Location, CryptoInput>;
+
+module ArtifactFlowConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node source) {
+    source = any(Crypto::ArtifactInstance artifact).getOutputNode()
+  }
+
+  predicate isSink(DataFlow::Node sink) {
+    sink = any(Crypto::FlowAwareElement other).getInputNode()
+  }
+
+  predicate isBarrierOut(DataFlow::Node node) {
+    node = any(Crypto::FlowAwareElement element).getInputNode()
+  }
+
+  predicate isBarrierIn(DataFlow::Node node) {
+    node = any(Crypto::FlowAwareElement element).getOutputNode()
+  }
+
+  predicate isAdditionalFlowStep(DataFlow::Node node1, DataFlow::Node node2) {
+    node1.(AdditionalFlowInputStep).getOutput() = node2
+  }
+}
+
+module ArtifactFlow = DataFlow::Global<ArtifactFlowConfig>;
+
+/**
+ * Artifact output to node input configuration
+ */
+abstract class AdditionalFlowInputStep extends DataFlow::Node {
+  abstract DataFlow::Node getOutput();
+
+  final DataFlow::Node getInput() { result = this }
+}
+
+/**
+ * Generic data source to node input configuration
+ */
+module GenericDataSourceFlowConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node source) {
+    source = any(Crypto::GenericSourceInstance i).getOutputNode()
+  }
+
+  predicate isSink(DataFlow::Node sink) {
+    sink = any(Crypto::FlowAwareElement other).getInputNode()
+  }
+
+  predicate isBarrierOut(DataFlow::Node node) {
+    node = any(Crypto::FlowAwareElement element).getInputNode()
+  }
+
+  predicate isBarrierIn(DataFlow::Node node) {
+    node = any(Crypto::FlowAwareElement element).getOutputNode()
+  }
+
+  predicate isAdditionalFlowStep(DataFlow::Node node1, DataFlow::Node node2) {
+    node1.(AdditionalFlowInputStep).getOutput() = node2
+  }
+}
+
+module ArtifactUniversalFlowConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node source) {
+    source = any(Crypto::ArtifactInstance artifact).getOutputNode()
+  }
+
+  predicate isSink(DataFlow::Node sink) {
+    sink = any(Crypto::FlowAwareElement other).getInputNode()
+  }
+
+  predicate isBarrierOut(DataFlow::Node node) {
+    node = any(Crypto::FlowAwareElement element).getInputNode()
+  }
+
+  predicate isBarrierIn(DataFlow::Node node) {
+    node = any(Crypto::FlowAwareElement element).getOutputNode()
+  }
+
+  predicate isAdditionalFlowStep(DataFlow::Node node1, DataFlow::Node node2) {
+    node1.(AdditionalFlowInputStep).getOutput() = node2
+  }
+}
+
+module ArtifactUniversalFlow = DataFlow::Global<ArtifactUniversalFlowConfig>;
+
+import OpenSSL.OpenSSL

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmInstances/AlgToAVCFlow.qll

@@ -0,0 +1,171 @@
+import cpp
+private import experimental.quantum.Language
+private import semmle.code.cpp.dataflow.new.DataFlow
+private import experimental.quantum.OpenSSL.AlgorithmInstances.KnownAlgorithmConstants
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumers
+
+/**
+ * Traces 'known algorithms' to AVCs, specifically
+ * algorithms that are in the set of known algorithm constants.
+ * Padding-specific consumers exist that have their own values that
+ * overlap with the known algorithm constants.
+ * Padding consumers (specific padding consumers) are excluded from the set of sinks.
+ */
+module KnownOpenSSLAlgorithmToAlgorithmValueConsumerConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node source) {
+    source.asExpr() instanceof KnownOpenSSLAlgorithmConstant
+  }
+
+  predicate isSink(DataFlow::Node sink) {
+    exists(OpenSSLAlgorithmValueConsumer c |
+      c.getInputNode() = sink and
+      not c instanceof PaddingAlgorithmValueConsumer
+    )
+  }
+
+  predicate isBarrier(DataFlow::Node node) {
+    // False positive reducer, don't flow out through argv
+    exists(VariableAccess va, Variable v |
+      v.getAnAccess() = va and va = node.asExpr()
+      or
+      va = node.asIndirectExpr()
+    |
+      v.getName().matches("%argv")
+    )
+  }
+
+  predicate isAdditionalFlowStep(DataFlow::Node node1, DataFlow::Node node2) {
+    knownPassThroughStep(node1, node2)
+  }
+}
+
+module KnownOpenSSLAlgorithmToAlgorithmValueConsumerFlow =
+  DataFlow::Global<KnownOpenSSLAlgorithmToAlgorithmValueConsumerConfig>;
+
+module RSAPaddingAlgorithmToPaddingAlgorithmValueConsumerConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node source) {
+    source.asExpr() instanceof KnownOpenSSLAlgorithmConstant
+  }
+
+  predicate isSink(DataFlow::Node sink) {
+    exists(PaddingAlgorithmValueConsumer c | c.getInputNode() = sink)
+  }
+
+  predicate isAdditionalFlowStep(DataFlow::Node node1, DataFlow::Node node2) {
+    knownPassThroughStep(node1, node2)
+  }
+}
+
+module RSAPaddingAlgorithmToPaddingAlgorithmValueConsumerFlow =
+  DataFlow::Global<RSAPaddingAlgorithmToPaddingAlgorithmValueConsumerConfig>;
+
+class OpenSSLAlgorithmAdditionalFlowStep extends AdditionalFlowInputStep {
+  OpenSSLAlgorithmAdditionalFlowStep() { exists(AlgorithmPassthroughCall c | c.getInNode() = this) }
+
+  override DataFlow::Node getOutput() {
+    exists(AlgorithmPassthroughCall c | c.getInNode() = this and c.getOutNode() = result)
+  }
+}
+
+abstract class AlgorithmPassthroughCall extends Call {
+  abstract DataFlow::Node getInNode();
+
+  abstract DataFlow::Node getOutNode();
+}
+
+class CopyAndDupAlgorithmPassthroughCall extends AlgorithmPassthroughCall {
+  DataFlow::Node inNode;
+  DataFlow::Node outNode;
+
+  CopyAndDupAlgorithmPassthroughCall() {
+    // Flow out through any return or other argument of the same type
+    // Assume flow in and out is asIndirectExpr or asDefinitingArgument since a pointer is assumed
+    // to be involved
+    // NOTE: not attempting to detect openssl specific copy/dup functions, but anything suspected to be copy/dup
+    this.getTarget().getName().toLowerCase().matches(["%_dup%", "%_copy%"]) and
+    exists(Expr inArg, Type t |
+      inArg = this.getAnArgument() and t = inArg.getUnspecifiedType().stripType()
+    |
+      inNode.asIndirectExpr() = inArg and
+      (
+        // Case 1: flow through another argument as an out arg of the same type
+        exists(Expr outArg |
+          outArg = this.getAnArgument() and
+          outArg != inArg and
+          outArg.getUnspecifiedType().stripType() = t
+        |
+          outNode.asDefiningArgument() = outArg
+        )
+        or
+        // Case 2: flow through the return value if the result is the same as the intput type
+        exists(Expr outArg | outArg = this and outArg.getUnspecifiedType().stripType() = t |
+          outNode.asIndirectExpr() = outArg
+        )
+      )
+    )
+  }
+
+  override DataFlow::Node getInNode() { result = inNode }
+
+  override DataFlow::Node getOutNode() { result = outNode }
+}
+
+class NIDToPointerPassthroughCall extends AlgorithmPassthroughCall {
+  DataFlow::Node inNode;
+  DataFlow::Node outNode;
+
+  NIDToPointerPassthroughCall() {
+    this.getTarget().getName() in ["OBJ_nid2obj", "OBJ_nid2ln", "OBJ_nid2sn"] and
+    inNode.asExpr() = this.getArgument(0) and
+    outNode.asExpr() = this
+    //outNode.asIndirectExpr() = this
+  }
+
+  override DataFlow::Node getInNode() { result = inNode }
+
+  override DataFlow::Node getOutNode() { result = outNode }
+}
+
+class PointerToPointerPassthroughCall extends AlgorithmPassthroughCall {
+  DataFlow::Node inNode;
+  DataFlow::Node outNode;
+
+  PointerToPointerPassthroughCall() {
+    this.getTarget().getName() = "OBJ_txt2obj" and
+    inNode.asIndirectExpr() = this.getArgument(0) and
+    outNode.asIndirectExpr() = this
+    or
+    //outNode.asExpr() = this
+    this.getTarget().getName() in ["OBJ_obj2txt", "i2t_ASN1_OBJECT"] and
+    inNode.asIndirectExpr() = this.getArgument(2) and
+    outNode.asDefiningArgument() = this.getArgument(0)
+  }
+
+  override DataFlow::Node getInNode() { result = inNode }
+
+  override DataFlow::Node getOutNode() { result = outNode }
+}
+
+class PointerToNIDPassthroughCall extends AlgorithmPassthroughCall {
+  DataFlow::Node inNode;
+  DataFlow::Node outNode;
+
+  PointerToNIDPassthroughCall() {
+    this.getTarget().getName() in ["OBJ_obj2nid", "OBJ_ln2nid", "OBJ_sn2nid", "OBJ_txt2nid"] and
+    (
+      inNode.asIndirectExpr() = this.getArgument(0)
+      or
+      inNode.asExpr() = this.getArgument(0)
+    ) and
+    outNode.asExpr() = this
+  }
+
+  override DataFlow::Node getInNode() { result = inNode }
+
+  override DataFlow::Node getOutNode() { result = outNode }
+}
+
+// TODO: pkeys pass through EVP_PKEY_CTX_new and any similar variant
+predicate knownPassThroughStep(DataFlow::Node node1, DataFlow::Node node2) {
+  exists(AlgorithmPassthroughCall c | c.getInNode() = node1 and c.getOutNode() = node2)
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmInstances/BlockAlgorithmInstance.qll

@@ -0,0 +1,77 @@
+import cpp
+private import experimental.quantum.Language
+private import OpenSSLAlgorithmInstanceBase
+private import experimental.quantum.OpenSSL.AlgorithmInstances.KnownAlgorithmConstants
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.DirectAlgorithmValueConsumer
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumerBase
+private import AlgToAVCFlow
+
+/**
+ * Given a `KnownOpenSSLBlockModeAlgorithmConstant`, converts this to a block family type.
+ * Does not bind if there is know mapping (no mapping to 'unknown' or 'other').
+ */
+predicate knownOpenSSLConstantToBlockModeFamilyType(
+  KnownOpenSSLBlockModeAlgorithmConstant e, Crypto::TBlockCipherModeOfOperationType type
+) {
+  exists(string name |
+    name = e.getNormalizedName() and
+    (
+      name.matches("CBC") and type instanceof Crypto::CBC
+      or
+      name.matches("CFB%") and type instanceof Crypto::CFB
+      or
+      name.matches("CTR") and type instanceof Crypto::CTR
+      or
+      name.matches("GCM") and type instanceof Crypto::GCM
+      or
+      name.matches("OFB") and type instanceof Crypto::OFB
+      or
+      name.matches("XTS") and type instanceof Crypto::XTS
+      or
+      name.matches("CCM") and type instanceof Crypto::CCM
+      or
+      name.matches("GCM") and type instanceof Crypto::GCM
+      or
+      name.matches("CCM") and type instanceof Crypto::CCM
+      or
+      name.matches("ECB") and type instanceof Crypto::ECB
+    )
+  )
+}
+
+class KnownOpenSSLBlockModeConstantAlgorithmInstance extends OpenSSLAlgorithmInstance,
+  Crypto::ModeOfOperationAlgorithmInstance instanceof KnownOpenSSLBlockModeAlgorithmConstant
+{
+  OpenSSLAlgorithmValueConsumer getterCall;
+
+  KnownOpenSSLBlockModeConstantAlgorithmInstance() {
+    // Two possibilities:
+    // 1) The source is a literal and flows to a getter, then we know we have an instance
+    // 2) The source is a KnownOpenSSLAlgorithm is call, and we know we have an instance immediately from that
+    // Possibility 1:
+    this instanceof Literal and
+    exists(DataFlow::Node src, DataFlow::Node sink |
+      // Sink is an argument to a CipherGetterCall
+      sink = getterCall.(OpenSSLAlgorithmValueConsumer).getInputNode() and
+      // Source is `this`
+      src.asExpr() = this and
+      // This traces to a getter
+      KnownOpenSSLAlgorithmToAlgorithmValueConsumerFlow::flow(src, sink)
+    )
+    or
+    // Possibility 2:
+    this instanceof DirectAlgorithmValueConsumer and getterCall = this
+  }
+
+  override Crypto::TBlockCipherModeOfOperationType getModeType() {
+    knownOpenSSLConstantToBlockModeFamilyType(this, result)
+    or
+    not knownOpenSSLConstantToBlockModeFamilyType(this, _) and result = Crypto::OtherMode()
+  }
+
+  // NOTE: I'm not going to attempt to parse out the mode specific part, so returning
+  // the same as the raw name for now.
+  override string getRawModeAlgorithmName() { result = this.(Literal).getValue().toString() }
+
+  override OpenSSLAlgorithmValueConsumer getAVC() { result = getterCall }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmInstances/CipherAlgorithmInstance.qll

@@ -0,0 +1,127 @@
+import cpp
+private import experimental.quantum.Language
+private import KnownAlgorithmConstants
+private import Crypto::KeyOpAlg as KeyOpAlg
+private import OpenSSLAlgorithmInstanceBase
+private import PaddingAlgorithmInstance
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumerBase
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.DirectAlgorithmValueConsumer
+private import AlgToAVCFlow
+private import BlockAlgorithmInstance
+
+/**
+ * Given a `KnownOpenSSLCipherAlgorithmConstant`, converts this to a cipher family type.
+ * Does not bind if there is know mapping (no mapping to 'unknown' or 'other').
+ */
+predicate knownOpenSSLConstantToCipherFamilyType(
+  KnownOpenSSLCipherAlgorithmConstant e, Crypto::KeyOpAlg::TAlgorithm type
+) {
+  exists(string name |
+    name = e.getNormalizedName() and
+    (
+      name.matches("AES%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::AES())
+      or
+      name.matches("ARIA%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::ARIA())
+      or
+      name.matches("BLOWFISH%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::BLOWFISH())
+      or
+      name.matches("BF%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::BLOWFISH())
+      or
+      name.matches("CAMELLIA%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::CAMELLIA())
+      or
+      name.matches("CHACHA20%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::CHACHA20())
+      or
+      name.matches("CAST5%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::CAST5())
+      or
+      name.matches("2DES%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::DoubleDES())
+      or
+      name.matches("3DES%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::TripleDES())
+      or
+      name.matches("DES%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::DES())
+      or
+      name.matches("DESX%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::DESX())
+      or
+      name.matches("GOST%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::GOST())
+      or
+      name.matches("IDEA%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::IDEA())
+      or
+      name.matches("KUZNYECHIK%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::KUZNYECHIK())
+      or
+      name.matches("MAGMA%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::MAGMA())
+      or
+      name.matches("RC2%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::RC2())
+      or
+      name.matches("RC4%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::RC4())
+      or
+      name.matches("RC5%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::RC5())
+      or
+      name.matches("RSA%") and type = KeyOpAlg::TAsymmetricCipher(KeyOpAlg::RSA())
+      or
+      name.matches("SEED%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::SEED())
+      or
+      name.matches("SM4%") and type = KeyOpAlg::TSymmetricCipher(KeyOpAlg::SM4())
+    )
+  )
+}
+
+class KnownOpenSSLCipherConstantAlgorithmInstance extends OpenSSLAlgorithmInstance,
+  Crypto::KeyOperationAlgorithmInstance instanceof KnownOpenSSLCipherAlgorithmConstant
+{
+  OpenSSLAlgorithmValueConsumer getterCall;
+
+  KnownOpenSSLCipherConstantAlgorithmInstance() {
+    // Two possibilities:
+    // 1) The source is a literal and flows to a getter, then we know we have an instance
+    // 2) The source is a KnownOpenSSLAlgorithm is call, and we know we have an instance immediately from that
+    // Possibility 1:
+    this instanceof Literal and
+    exists(DataFlow::Node src, DataFlow::Node sink |
+      // Sink is an argument to a CipherGetterCall
+      sink = getterCall.(OpenSSLAlgorithmValueConsumer).getInputNode() and
+      // Source is `this`
+      src.asExpr() = this and
+      // This traces to a getter
+      KnownOpenSSLAlgorithmToAlgorithmValueConsumerFlow::flow(src, sink)
+    )
+    or
+    // Possibility 2:
+    this instanceof DirectAlgorithmValueConsumer and getterCall = this
+  }
+
+  override Crypto::ModeOfOperationAlgorithmInstance getModeOfOperationAlgorithm() {
+    // if there is a block mode associated with the same element, then that's the block mode
+    // note, if none are associated, we may need to parse if the cipher is a block cipher
+    // to determine if this is an unknown vs not relevant.
+    result = this
+  }
+
+  override Crypto::PaddingAlgorithmInstance getPaddingAlgorithm() {
+    //TODO: the padding is either self, or it flows through getter ctx to a set padding call
+    // like EVP_PKEY_CTX_set_rsa_padding
+    result = this
+    // TODO or trace through getter ctx to set padding
+  }
+
+  override string getRawAlgorithmName() { result = this.(Literal).getValue().toString() }
+
+  override string getKeySizeFixed() {
+    exists(int keySize |
+      this.(KnownOpenSSLCipherAlgorithmConstant).getExplicitKeySize() = keySize and
+      result = keySize.toString()
+    )
+  }
+
+  override Crypto::KeyOpAlg::Algorithm getAlgorithmType() {
+    knownOpenSSLConstantToCipherFamilyType(this, result)
+    or
+    not knownOpenSSLConstantToCipherFamilyType(this, _) and
+    result = Crypto::KeyOpAlg::TUnknownKeyOperationAlgorithmType()
+  }
+
+  override OpenSSLAlgorithmValueConsumer getAVC() { result = getterCall }
+
+  override Crypto::ConsumerInputDataFlowNode getKeySizeConsumer() {
+    // TODO: trace to any key size initializer, symmetric and asymmetric
+    none()
+  }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmInstances/EllipticCurveAlgorithmInstance.qll

@@ -0,0 +1,46 @@
+import cpp
+private import experimental.quantum.Language
+private import KnownAlgorithmConstants
+private import OpenSSLAlgorithmInstanceBase
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumerBase
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.DirectAlgorithmValueConsumer
+private import AlgToAVCFlow
+
+class KnownOpenSSLEllipticCurveConstantAlgorithmInstance extends OpenSSLAlgorithmInstance,
+  Crypto::EllipticCurveInstance instanceof KnownOpenSSLEllipticCurveAlgorithmConstant
+{
+  OpenSSLAlgorithmValueConsumer getterCall;
+
+  KnownOpenSSLEllipticCurveConstantAlgorithmInstance() {
+    // Two possibilities:
+    // 1) The source is a literal and flows to a getter, then we know we have an instance
+    // 2) The source is a KnownOpenSSLAlgorithm is call, and we know we have an instance immediately from that
+    // Possibility 1:
+    this instanceof Literal and
+    exists(DataFlow::Node src, DataFlow::Node sink |
+      // Sink is an argument to a CipherGetterCall
+      sink = getterCall.getInputNode() and
+      // Source is `this`
+      src.asExpr() = this and
+      // This traces to a getter
+      KnownOpenSSLAlgorithmToAlgorithmValueConsumerFlow::flow(src, sink)
+    )
+    or
+    // Possibility 2:
+    this instanceof DirectAlgorithmValueConsumer and getterCall = this
+  }
+
+  override OpenSSLAlgorithmValueConsumer getAVC() { result = getterCall }
+
+  override string getRawEllipticCurveName() { result = this.(Literal).getValue().toString() }
+
+  override Crypto::TEllipticCurveType getEllipticCurveType() {
+    Crypto::ellipticCurveNameToKeySizeAndFamilyMapping(this.(KnownOpenSSLEllipticCurveAlgorithmConstant)
+          .getNormalizedName(), _, result)
+  }
+
+  override int getKeySize() {
+    Crypto::ellipticCurveNameToKeySizeAndFamilyMapping(this.(KnownOpenSSLEllipticCurveAlgorithmConstant)
+          .getNormalizedName(), result, _)
+  }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmInstances/HashAlgorithmInstance.qll

@@ -0,0 +1,84 @@
+import cpp
+private import experimental.quantum.Language
+private import KnownAlgorithmConstants
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumers
+private import experimental.quantum.OpenSSL.AlgorithmInstances.OpenSSLAlgorithmInstanceBase
+private import AlgToAVCFlow
+
+predicate knownOpenSSLConstantToHashFamilyType(
+  KnownOpenSSLHashAlgorithmConstant e, Crypto::THashType type
+) {
+  exists(string name |
+    name = e.getNormalizedName() and
+    (
+      name.matches("BLAKE2B") and type instanceof Crypto::BLAKE2B
+      or
+      name.matches("BLAKE2S") and type instanceof Crypto::BLAKE2S
+      or
+      name.matches("GOST%") and type instanceof Crypto::GOSTHash
+      or
+      name.matches("MD2") and type instanceof Crypto::MD2
+      or
+      name.matches("MD4") and type instanceof Crypto::MD4
+      or
+      name.matches("MD5") and type instanceof Crypto::MD5
+      or
+      name.matches("MDC2") and type instanceof Crypto::MDC2
+      or
+      name.matches("POLY1305") and type instanceof Crypto::POLY1305
+      or
+      name.matches(["SHA", "SHA1"]) and type instanceof Crypto::SHA1
+      or
+      name.matches("SHA+%") and not name.matches(["SHA1", "SHA3-"]) and type instanceof Crypto::SHA2
+      or
+      name.matches("SHA3-%") and type instanceof Crypto::SHA3
+      or
+      name.matches(["SHAKE"]) and type instanceof Crypto::SHAKE
+      or
+      name.matches("SM3") and type instanceof Crypto::SM3
+      or
+      name.matches("RIPEMD160") and type instanceof Crypto::RIPEMD160
+      or
+      name.matches("WHIRLPOOL") and type instanceof Crypto::WHIRLPOOL
+    )
+  )
+}
+
+class KnownOpenSSLHashConstantAlgorithmInstance extends OpenSSLAlgorithmInstance,
+  Crypto::HashAlgorithmInstance instanceof KnownOpenSSLHashAlgorithmConstant
+{
+  OpenSSLAlgorithmValueConsumer getterCall;
+
+  KnownOpenSSLHashConstantAlgorithmInstance() {
+    // Two possibilities:
+    // 1) The source is a literal and flows to a getter, then we know we have an instance
+    // 2) The source is a KnownOpenSSLAlgorithm is call, and we know we have an instance immediately from that
+    // Possibility 1:
+    this instanceof Literal and
+    exists(DataFlow::Node src, DataFlow::Node sink |
+      // Sink is an argument to a CipherGetterCall
+      sink = getterCall.(OpenSSLAlgorithmValueConsumer).getInputNode() and
+      // Source is `this`
+      src.asExpr() = this and
+      // This traces to a getter
+      KnownOpenSSLAlgorithmToAlgorithmValueConsumerFlow::flow(src, sink)
+    )
+    or
+    // Possibility 2:
+    this instanceof DirectAlgorithmValueConsumer and getterCall = this
+  }
+
+  override OpenSSLAlgorithmValueConsumer getAVC() { result = getterCall }
+
+  override Crypto::THashType getHashFamily() {
+    knownOpenSSLConstantToHashFamilyType(this, result)
+    or
+    not knownOpenSSLConstantToHashFamilyType(this, _) and result = Crypto::OtherHashType()
+  }
+
+  override string getRawHashAlgorithmName() { result = this.(Literal).getValue().toString() }
+
+  override int getFixedDigestLength() {
+    this.(KnownOpenSSLHashAlgorithmConstant).getExplicitDigestLength() = result
+  }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmInstances/OpenSSLAlgorithmInstanceBase.qll

@@ -0,0 +1,6 @@
+private import experimental.quantum.Language
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumerBase
+
+abstract class OpenSSLAlgorithmInstance extends Crypto::AlgorithmInstance {
+  abstract OpenSSLAlgorithmValueConsumer getAVC();
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmInstances/OpenSSLAlgorithmInstances.qll

@@ -0,0 +1,6 @@
+import OpenSSLAlgorithmInstanceBase
+import CipherAlgorithmInstance
+import PaddingAlgorithmInstance
+import BlockAlgorithmInstance
+import HashAlgorithmInstance
+import EllipticCurveAlgorithmInstance

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmInstances/PaddingAlgorithmInstance.qll

@@ -0,0 +1,168 @@
+import cpp
+private import experimental.quantum.Language
+private import OpenSSLAlgorithmInstanceBase
+private import experimental.quantum.OpenSSL.AlgorithmInstances.KnownAlgorithmConstants
+private import AlgToAVCFlow
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.DirectAlgorithmValueConsumer
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumerBase
+
+/**
+ * Given a `KnownOpenSSLPaddingAlgorithmConstant`, converts this to a padding family type.
+ * Does not bind if there is know mapping (no mapping to 'unknown' or 'other').
+ */
+predicate knownOpenSSLConstantToPaddingFamilyType(
+  KnownOpenSSLPaddingAlgorithmConstant e, Crypto::TPaddingType type
+) {
+  exists(string name |
+    name = e.getNormalizedName() and
+    (
+      name.matches("OAEP") and type = Crypto::OAEP()
+      or
+      name.matches("PSS") and type = Crypto::PSS()
+      or
+      name.matches("PKCS7") and type = Crypto::PKCS7()
+      or
+      name.matches("PKCS1V15") and type = Crypto::PKCS1_v1_5()
+    )
+  )
+}
+
+//abstract class OpenSSLPaddingAlgorithmInstance extends OpenSSLAlgorithmInstance, Crypto::PaddingAlgorithmInstance{}
+// TODO: need to alter this to include known padding constants which don't have the
+// same mechanics as those with known nids
+class KnownOpenSSLPaddingConstantAlgorithmInstance extends OpenSSLAlgorithmInstance,
+  Crypto::PaddingAlgorithmInstance instanceof Expr
+{
+  OpenSSLAlgorithmValueConsumer getterCall;
+  boolean isPaddingSpecificConsumer;
+
+  KnownOpenSSLPaddingConstantAlgorithmInstance() {
+    // three possibilities:
+    // 1) The source is a 'typical' literal and flows to a getter, then we know we have an instance
+    // 2) The source is a KnownOpenSSLAlgorithm is call, and we know we have an instance immediately from that
+    // 3) the source is a padding-specific literal flowing to a padding-specific consumer
+    // Possibility 1:
+    this instanceof Literal and
+    this instanceof KnownOpenSSLPaddingAlgorithmConstant and
+    exists(DataFlow::Node src, DataFlow::Node sink |
+      // Sink is an argument to a CipherGetterCall
+      sink = getterCall.(OpenSSLAlgorithmValueConsumer).getInputNode() and
+      // Source is `this`
+      src.asExpr() = this and
+      // This traces to a getter
+      KnownOpenSSLAlgorithmToAlgorithmValueConsumerFlow::flow(src, sink) and
+      isPaddingSpecificConsumer = false
+    )
+    or
+    // Possibility 2:
+    this instanceof DirectAlgorithmValueConsumer and
+    getterCall = this and
+    this instanceof KnownOpenSSLPaddingAlgorithmConstant and
+    isPaddingSpecificConsumer = false
+    or
+    // Possibility 3:
+    // from rsa.h in openssl:
+    // # define RSA_PKCS1_PADDING          1
+    // # define RSA_NO_PADDING             3
+    // # define RSA_PKCS1_OAEP_PADDING     4
+    // # define RSA_X931_PADDING           5
+    // /* EVP_PKEY_ only */
+    // # define RSA_PKCS1_PSS_PADDING      6
+    // # define RSA_PKCS1_WITH_TLS_PADDING 7
+    // /* internal RSA_ only */
+    // # define RSA_PKCS1_NO_IMPLICIT_REJECT_PADDING 8
+    this instanceof Literal and
+    this.getValue().toInt() in [0, 1, 3, 4, 5, 6, 7, 8] and
+    exists(DataFlow::Node src, DataFlow::Node sink |
+      // Sink is an argument to a CipherGetterCall
+      sink = getterCall.(OpenSSLAlgorithmValueConsumer).getInputNode() and
+      // Source is `this`
+      src.asExpr() = this and
+      // This traces to a padding-specific consumer
+      RSAPaddingAlgorithmToPaddingAlgorithmValueConsumerFlow::flow(src, sink)
+    ) and
+    isPaddingSpecificConsumer = true
+  }
+
+  override string getRawPaddingAlgorithmName() { result = this.(Literal).getValue().toString() }
+
+  override OpenSSLAlgorithmValueConsumer getAVC() { result = getterCall }
+
+  override Crypto::TPaddingType getPaddingType() {
+    isPaddingSpecificConsumer = true and
+    (
+      if this.(Literal).getValue().toInt() in [1, 7, 8]
+      then result = Crypto::PKCS1_v1_5()
+      else
+        if this.(Literal).getValue().toInt() = 3
+        then result = Crypto::NoPadding()
+        else
+          if this.(Literal).getValue().toInt() = 4
+          then result = Crypto::OAEP()
+          else
+            if this.(Literal).getValue().toInt() = 5
+            then result = Crypto::ANSI_X9_23()
+            else
+              if this.(Literal).getValue().toInt() = 6
+              then result = Crypto::PSS()
+              else result = Crypto::OtherPadding()
+    )
+    or
+    isPaddingSpecificConsumer = false and
+    knownOpenSSLConstantToPaddingFamilyType(this, result)
+  }
+}
+
+// // Values used for EVP_PKEY_CTX_set_rsa_padding, these are
+// // not the same as 'typical' constants found in the set of known algorithm constants
+// // they do not have an NID
+// // TODO: what about setting the padding directly?
+// class KnownRSAPaddingConstant extends OpenSSLPaddingAlgorithmInstance, Crypto::PaddingAlgorithmInstance instanceof Literal
+// {
+//   KnownRSAPaddingConstant() {
+//     // from rsa.h in openssl:
+//     // # define RSA_PKCS1_PADDING          1
+//     // # define RSA_NO_PADDING             3
+//     // # define RSA_PKCS1_OAEP_PADDING     4
+//     // # define RSA_X931_PADDING           5
+//     // /* EVP_PKEY_ only */
+//     // # define RSA_PKCS1_PSS_PADDING      6
+//     // # define RSA_PKCS1_WITH_TLS_PADDING 7
+//     // /* internal RSA_ only */
+//     // # define RSA_PKCS1_NO_IMPLICIT_REJECT_PADDING 8
+//     this instanceof Literal and
+//     this.getValue().toInt() in [0, 1, 3, 4, 5, 6, 7, 8]
+//     // TODO: trace to padding-specific consumers
+//     RSAPaddingAlgorithmToPaddingAlgorithmValueConsumerFlow
+//   }
+//   override string getRawPaddingAlgorithmName() { result = this.(Literal).getValue().toString() }
+//   override Crypto::TPaddingType getPaddingType() {
+//     if this.(Literal).getValue().toInt() in [1, 6, 7, 8]
+//     then result = Crypto::PKCS1_v1_5()
+//     else
+//       if this.(Literal).getValue().toInt() = 3
+//       then result = Crypto::NoPadding()
+//       else
+//         if this.(Literal).getValue().toInt() = 4
+//         then result = Crypto::OAEP()
+//         else
+//           if this.(Literal).getValue().toInt() = 5
+//           then result = Crypto::ANSI_X9_23()
+//           else result = Crypto::OtherPadding()
+//   }
+// }
+class OAEPPaddingAlgorithmInstance extends Crypto::OAEPPaddingAlgorithmInstance,
+  KnownOpenSSLPaddingConstantAlgorithmInstance
+{
+  OAEPPaddingAlgorithmInstance() {
+    this.(Crypto::PaddingAlgorithmInstance).getPaddingType() = Crypto::OAEP()
+  }
+
+  override Crypto::HashAlgorithmInstance getOAEPEncodingHashAlgorithm() {
+    none() //TODO
+  }
+
+  override Crypto::HashAlgorithmInstance getMGF1HashAlgorithm() {
+    none() //TODO
+  }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmValueConsumers/CipherAlgorithmValueConsumer.qll

@@ -0,0 +1,39 @@
+import cpp
+private import experimental.quantum.Language
+private import experimental.quantum.OpenSSL.LibraryDetector
+private import experimental.quantum.OpenSSL.AlgorithmInstances.KnownAlgorithmConstants
+private import experimental.quantum.OpenSSL.AlgorithmInstances.OpenSSLAlgorithmInstanceBase
+private import OpenSSLAlgorithmValueConsumerBase
+
+abstract class CipherAlgorithmValueConsumer extends OpenSSLAlgorithmValueConsumer { }
+
+// https://www.openssl.org/docs/manmaster/man3/EVP_CIPHER_fetch.html
+class EVPCipherAlgorithmValueConsumer extends CipherAlgorithmValueConsumer {
+  DataFlow::Node valueArgNode;
+  DataFlow::Node resultNode;
+
+  EVPCipherAlgorithmValueConsumer() {
+    resultNode.asExpr() = this and
+    isPossibleOpenSSLFunction(this.(Call).getTarget()) and
+    (
+      this.(Call).getTarget().getName() in [
+          "EVP_get_cipherbyname", "EVP_get_cipherbyobj", "EVP_get_cipherbynid"
+        ] and
+      valueArgNode.asExpr() = this.(Call).getArgument(0)
+      or
+      this.(Call).getTarget().getName() in ["EVP_CIPHER_fetch", "EVP_ASYM_CIPHER_fetch"] and
+      valueArgNode.asExpr() = this.(Call).getArgument(1)
+    )
+  }
+
+  override DataFlow::Node getResultNode() { result = resultNode }
+
+  override Crypto::ConsumerInputDataFlowNode getInputNode() { result = valueArgNode }
+
+  // override DataFlow::Node getInputNode() { result = valueArgNode }
+  override Crypto::AlgorithmInstance getAKnownAlgorithmSource() {
+    exists(OpenSSLAlgorithmInstance i | i.getAVC() = this and result = i)
+    //TODO: As a potential alternative, for OpenSSL only, add a generic source node for literals and only create flow (flowsTo) to
+    // OpenSSL AVCs... the unknown literal sources would have to be any literals not in the known set.
+  }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmValueConsumers/DirectAlgorithmValueConsumer.qll

@@ -0,0 +1,36 @@
+import cpp
+private import experimental.quantum.Language
+private import experimental.quantum.OpenSSL.AlgorithmInstances.KnownAlgorithmConstants
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumerBase
+
+// TODO: can self referential to itself, which is also an algorithm (Known algorithm)
+/**
+ * Cases like EVP_MD5(),
+ * there is no input, rather it directly gets an algorithm
+ * and returns it.
+ */
+class DirectAlgorithmValueConsumer extends OpenSSLAlgorithmValueConsumer {
+  DataFlow::Node resultNode;
+  Expr resultExpr;
+
+  DirectAlgorithmValueConsumer() {
+    this instanceof KnownOpenSSLAlgorithmConstant and
+    this instanceof Call and
+    resultExpr = this and
+    resultNode.asExpr() = resultExpr
+  }
+
+  /**
+   * These cases take in no explicit value (the value is implicit)
+   */
+  override Crypto::ConsumerInputDataFlowNode getInputNode() { none() }
+
+  override DataFlow::Node getResultNode() { result = resultNode }
+
+  //   override DataFlow::Node getOutputNode() { result = resultNode }
+  override Crypto::AlgorithmInstance getAKnownAlgorithmSource() {
+    // Note: algorithm source definitions enforces that
+    // this class will be a known algorithm source
+    result = this
+  }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmValueConsumers/EllipticCurveAlgorithmValueConsumer.qll

@@ -0,0 +1,36 @@
+import cpp
+private import experimental.quantum.Language
+private import experimental.quantum.OpenSSL.LibraryDetector
+private import experimental.quantum.OpenSSL.AlgorithmInstances.KnownAlgorithmConstants
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumerBase
+private import experimental.quantum.OpenSSL.AlgorithmInstances.OpenSSLAlgorithmInstances
+
+abstract class EllipticCurveValueConsumer extends OpenSSLAlgorithmValueConsumer { }
+
+//https://docs.openssl.org/3.0/man3/EC_KEY_new/#name
+class EVPEllipticCurveAlgorithmConsumer extends EllipticCurveValueConsumer {
+  DataFlow::Node valueArgNode;
+  DataFlow::Node resultNode;
+
+  EVPEllipticCurveAlgorithmConsumer() {
+    resultNode.asExpr() = this.(Call) and // in all cases the result is the return
+    isPossibleOpenSSLFunction(this.(Call).getTarget()) and
+    (
+      this.(Call).getTarget().getName() in ["EVP_EC_gen", "EC_KEY_new_by_curve_name"] and
+      valueArgNode.asExpr() = this.(Call).getArgument(0)
+      or
+      this.(Call).getTarget().getName() in [
+          "EC_KEY_new_by_curve_name_ex", "EVP_PKEY_CTX_set_ec_paramgen_curve_nid"
+        ] and
+      valueArgNode.asExpr() = this.(Call).getArgument(2)
+    )
+  }
+
+  override Crypto::AlgorithmInstance getAKnownAlgorithmSource() {
+    exists(OpenSSLAlgorithmInstance i | i.getAVC() = this and result = i)
+  }
+
+  override DataFlow::Node getResultNode() { result = resultNode }
+
+  override Crypto::ConsumerInputDataFlowNode getInputNode() { result = valueArgNode }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmValueConsumers/HashAlgorithmValueConsumer.qll

@@ -0,0 +1,32 @@
+import cpp
+private import experimental.quantum.Language
+private import semmle.code.cpp.dataflow.new.DataFlow
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumerBase
+private import experimental.quantum.OpenSSL.AlgorithmInstances.OpenSSLAlgorithmInstances
+private import experimental.quantum.OpenSSL.LibraryDetector
+
+abstract class HashAlgorithmValueConsumer extends OpenSSLAlgorithmValueConsumer { }
+
+/**
+ * EVP_Q_Digest directly consumes algorithm constant values
+ */
+class EVP_Q_Digest_Algorithm_Consumer extends OpenSSLAlgorithmValueConsumer {
+  EVP_Q_Digest_Algorithm_Consumer() {
+    isPossibleOpenSSLFunction(this.(Call).getTarget()) and
+    this.(Call).getTarget().getName() = "EVP_Q_digest"
+  }
+
+  override Crypto::ConsumerInputDataFlowNode getInputNode() {
+    result.asExpr() = this.(Call).getArgument(1)
+  }
+
+  override Crypto::AlgorithmInstance getAKnownAlgorithmSource() {
+    exists(OpenSSLAlgorithmInstance i | i.getAVC() = this and result = i)
+  }
+
+  override DataFlow::Node getResultNode() {
+    // EVP_Q_Digest directly consumes the algorithm constant value and performs the operation, there is no
+    // algorithm result
+    none()
+  }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmValueConsumers/OpenSSLAlgorithmValueConsumerBase.qll

@@ -0,0 +1,9 @@
+private import experimental.quantum.Language
+private import semmle.code.cpp.dataflow.new.DataFlow
+
+abstract class OpenSSLAlgorithmValueConsumer extends Crypto::AlgorithmValueConsumer instanceof Call {
+  /**
+   * Returns the node representing the resulting algorithm
+   */
+  abstract DataFlow::Node getResultNode();
+}

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmValueConsumers/OpenSSLAlgorithmValueConsumers.qll

@@ -0,0 +1,6 @@
+import OpenSSLAlgorithmValueConsumerBase
+import CipherAlgorithmValueConsumer
+import DirectAlgorithmValueConsumer
+import PaddingAlgorithmValueConsumer
+import HashAlgorithmValueConsumer
+import EllipticCurveAlgorithmValueConsumer

cpp/ql/lib/experimental/quantum/OpenSSL/AlgorithmValueConsumers/PaddingAlgorithmValueConsumer.qll

@@ -0,0 +1,36 @@
+import cpp
+private import experimental.quantum.Language
+private import experimental.quantum.OpenSSL.LibraryDetector
+private import experimental.quantum.OpenSSL.AlgorithmInstances.KnownAlgorithmConstants
+private import experimental.quantum.OpenSSL.AlgorithmInstances.OpenSSLAlgorithmInstanceBase
+private import OpenSSLAlgorithmValueConsumerBase
+
+abstract class PaddingAlgorithmValueConsumer extends OpenSSLAlgorithmValueConsumer { }
+
+// https://docs.openssl.org/master/man7/EVP_ASYM_CIPHER-RSA/#rsa-asymmetric-cipher-parameters
+// TODO: need to handle setting padding through EVP_PKEY_CTX_set_params, where modes like "OSSL_PKEY_RSA_PAD_MODE_OAEP"
+// are set.
+class EVP_PKEY_CTX_set_rsa_padding_AlgorithmValueConsumer extends PaddingAlgorithmValueConsumer {
+  DataFlow::Node valueArgNode;
+  DataFlow::Node resultNode;
+
+  EVP_PKEY_CTX_set_rsa_padding_AlgorithmValueConsumer() {
+    resultNode.asExpr() = this and
+    isPossibleOpenSSLFunction(this.(Call).getTarget()) and
+    (
+      this.(Call).getTarget().getName() in ["EVP_PKEY_CTX_set_rsa_padding"] and
+      valueArgNode.asExpr() = this.(Call).getArgument(1)
+    )
+  }
+
+  override DataFlow::Node getResultNode() { result = resultNode }
+
+  override Crypto::ConsumerInputDataFlowNode getInputNode() { result = valueArgNode }
+
+  // override DataFlow::Node getInputNode() { result = valueArgNode }
+  override Crypto::AlgorithmInstance getAKnownAlgorithmSource() {
+    exists(OpenSSLAlgorithmInstance i | i.getAVC() = this and result = i)
+    //TODO: As a potential alternative, for OpenSSL only, add a generic source node for literals and only create flow (flowsTo) to
+    // OpenSSL AVCs... the unknown literal sources would have to be any literals not in the known set.
+  }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/CtxFlow.qll

@@ -0,0 +1,99 @@
+//TODO: model as data on open APIs should be able to get common flows, and obviate some of this
+// e.g., copy/dup calls, need to ingest those models for openSSL and refactor.
+/**
+ * In OpenSSL, flow between 'context' parameters is often used to
+ * store state/config of how an operation will eventually be performed.
+ * Tracing algorithms and configurations to operations therefore
+ * requires tracing context parameters for many OpenSSL apis.
+ *
+ * This library provides a dataflow analysis to track context parameters
+ * between any two functions accepting openssl context parameters.
+ * The dataflow takes into consideration flowing through duplication and copy calls
+ * as well as flow through flow killers (free/reset calls).
+ *
+ * TODO: we may need to revisit 'free' as a dataflow killer, depending on how
+ * we want to model use after frees.
+ *
+ * This library also provides classes to represent context Types and relevant
+ * arguments/expressions.
+ */
+
+import semmle.code.cpp.dataflow.new.DataFlow
+
+class CTXType extends Type {
+  CTXType() {
+    // TODO: should we limit this to an openssl path?
+    this.getUnspecifiedType().stripType().getName().matches("evp_%ctx_%st")
+  }
+}
+
+class CTXPointerExpr extends Expr {
+  CTXPointerExpr() {
+    this.getType() instanceof CTXType and
+    this.getType() instanceof PointerType
+  }
+}
+
+class CTXPointerArgument extends CTXPointerExpr {
+  CTXPointerArgument() { exists(Call c | c.getAnArgument() = this) }
+
+  Call getCall() { result.getAnArgument() = this }
+}
+
+class CTXClearCall extends Call {
+  CTXClearCall() {
+    this.getTarget().getName().toLowerCase().matches(["%free%", "%reset%"]) and
+    this.getAnArgument() instanceof CTXPointerArgument
+  }
+}
+
+class CTXCopyOutArgCall extends Call {
+  CTXCopyOutArgCall() {
+    this.getTarget().getName().toLowerCase().matches(["%copy%"]) and
+    this.getAnArgument() instanceof CTXPointerArgument
+  }
+}
+
+class CTXCopyReturnCall extends Call {
+  CTXCopyReturnCall() {
+    this.getTarget().getName().toLowerCase().matches(["%dup%"]) and
+    this.getAnArgument() instanceof CTXPointerArgument and
+    this instanceof CTXPointerExpr
+  }
+}
+
+module OpenSSLCTXArgumentFlowConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node source) { source.asExpr() instanceof CTXPointerArgument }
+
+  predicate isSink(DataFlow::Node sink) { sink.asExpr() instanceof CTXPointerArgument }
+
+  predicate isBarrier(DataFlow::Node node) {
+    exists(CTXClearCall c | c.getAnArgument() = node.asExpr())
+  }
+
+  predicate isAdditionalFlowStep(DataFlow::Node node1, DataFlow::Node node2) {
+    exists(CTXCopyOutArgCall c |
+      c.getAnArgument() = node1.asExpr() and
+      c.getAnArgument() = node2.asExpr() and
+      node1.asExpr() != node2.asExpr() and
+      node2.asExpr().getType() instanceof CTXType
+    )
+    or
+    exists(CTXCopyReturnCall c |
+      c.getAnArgument() = node1.asExpr() and
+      c = node2.asExpr() and
+      node1.asExpr() != node2.asExpr() and
+      node2.asExpr().getType() instanceof CTXType
+    )
+  }
+}
+
+module OpenSSLCTXArgumentFlow = DataFlow::Global<OpenSSLCTXArgumentFlowConfig>;
+
+predicate ctxArgFlowsToCtxArg(CTXPointerArgument source, CTXPointerArgument sink) {
+  exists(DataFlow::Node a, DataFlow::Node b |
+    OpenSSLCTXArgumentFlow::flow(a, b) and
+    a.asExpr() = source and
+    b.asExpr() = sink
+  )
+}

cpp/ql/lib/experimental/quantum/OpenSSL/LibraryDetector.qll

@@ -0,0 +1,7 @@
+import cpp
+
+predicate isPossibleOpenSSLFunction(Function f) {
+  isPossibleOpenSSLLocation(f.getADeclarationLocation())
+}
+
+predicate isPossibleOpenSSLLocation(Location l) { l.toString().toLowerCase().matches("%openssl%") }

cpp/ql/lib/experimental/quantum/OpenSSL/OpenSSL.qll

@@ -0,0 +1,10 @@
+import cpp
+import semmle.code.cpp.dataflow.new.DataFlow
+
+module OpenSSLModel {
+  import experimental.quantum.Language
+  import experimental.quantum.OpenSSL.AlgorithmInstances.OpenSSLAlgorithmInstances
+  import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumers
+  import experimental.quantum.OpenSSL.Operations.OpenSSLOperations
+  import experimental.quantum.OpenSSL.Random
+}

cpp/ql/lib/experimental/quantum/OpenSSL/Operations/EVPCipherInitializer.qll

@@ -0,0 +1,123 @@
+/**
+ * see: https://docs.openssl.org/master/man3/EVP_EncryptInit/
+ * Models cipher initialization for EVP cipher operations.
+ */
+
+private import experimental.quantum.Language
+private import experimental.quantum.OpenSSL.CtxFlow as CTXFlow
+
+module EncValToInitEncArgConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node source) { source.asExpr().getValue().toInt() in [0, 1] }
+
+  predicate isSink(DataFlow::Node sink) {
+    exists(EVP_Cipher_Initializer initCall | sink.asExpr() = initCall.getOperationSubtypeArg())
+  }
+}
+
+module EncValToInitEncArgFlow = DataFlow::Global<EncValToInitEncArgConfig>;
+
+int getEncConfigValue(Expr e) {
+  exists(EVP_Cipher_Initializer initCall | e = initCall.getOperationSubtypeArg()) and
+  exists(DataFlow::Node a, DataFlow::Node b |
+    EncValToInitEncArgFlow::flow(a, b) and b.asExpr() = e and result = a.asExpr().getValue().toInt()
+  )
+}
+
+bindingset[i]
+Crypto::KeyOperationSubtype intToCipherOperationSubtype(int i) {
+  if i = 0
+  then result instanceof Crypto::TEncryptMode
+  else
+    if i = 1
+    then result instanceof Crypto::TDecryptMode
+    else result instanceof Crypto::TUnknownKeyOperationMode
+}
+
+// TODO: need to add key consumer
+abstract class EVP_Cipher_Initializer extends Call {
+  Expr getContextArg() { result = this.(Call).getArgument(0) }
+
+  Expr getAlgorithmArg() { result = this.(Call).getArgument(1) }
+
+  abstract Expr getKeyArg();
+
+  abstract Expr getIVArg();
+
+  //   abstract Crypto::CipherOperationSubtype getCipherOperationSubtype();
+  abstract Expr getOperationSubtypeArg();
+
+  Crypto::KeyOperationSubtype getCipherOperationSubtype() {
+    if this.(Call).getTarget().getName().toLowerCase().matches("%encrypt%")
+    then result instanceof Crypto::TEncryptMode
+    else
+      if this.(Call).getTarget().getName().toLowerCase().matches("%decrypt%")
+      then result instanceof Crypto::TDecryptMode
+      else
+        if exists(getEncConfigValue(this.getOperationSubtypeArg()))
+        then result = intToCipherOperationSubtype(getEncConfigValue(this.getOperationSubtypeArg()))
+        else result instanceof Crypto::TUnknownKeyOperationMode
+  }
+}
+
+abstract class EVP_EX_Initializer extends EVP_Cipher_Initializer {
+  override Expr getKeyArg() { result = this.(Call).getArgument(3) }
+
+  override Expr getIVArg() { result = this.(Call).getArgument(4) }
+}
+
+abstract class EVP_EX2_Initializer extends EVP_Cipher_Initializer {
+  override Expr getKeyArg() { result = this.(Call).getArgument(2) }
+
+  override Expr getIVArg() { result = this.(Call).getArgument(3) }
+}
+
+class EVP_Cipher_EX_Init_Call extends EVP_EX_Initializer {
+  EVP_Cipher_EX_Init_Call() {
+    this.(Call).getTarget().getName() in [
+        "EVP_EncryptInit_ex", "EVP_DecryptInit_ex", "EVP_CipherInit_ex"
+      ]
+  }
+
+  override Expr getOperationSubtypeArg() {
+    this.(Call).getTarget().getName().toLowerCase().matches("%cipherinit%") and
+    result = this.(Call).getArgument(5)
+  }
+}
+
+class EVP_Cipher_EX2_or_Simple_Init_Call extends EVP_EX2_Initializer {
+  EVP_Cipher_EX2_or_Simple_Init_Call() {
+    this.(Call).getTarget().getName() in [
+        "EVP_EncryptInit_ex2", "EVP_DecryptInit_ex2", "EVP_CipherInit_ex2", "EVP_EncryptInit",
+        "EVP_DecryptInit", "EVP_CipherInit"
+      ]
+  }
+
+  override Expr getOperationSubtypeArg() {
+    this.(Call).getTarget().getName().toLowerCase().matches("%cipherinit%") and
+    result = this.(Call).getArgument(4)
+  }
+}
+
+class EVP_CipherInit_SKEY_Call extends EVP_EX2_Initializer {
+  EVP_CipherInit_SKEY_Call() { this.(Call).getTarget().getName() in ["EVP_CipherInit_SKEY"] }
+
+  override Expr getOperationSubtypeArg() { result = this.(Call).getArgument(5) }
+}
+
+class EVPCipherInitializerAlgorithmArgument extends Expr {
+  EVPCipherInitializerAlgorithmArgument() {
+    exists(EVP_Cipher_Initializer initCall | this = initCall.getAlgorithmArg())
+  }
+}
+
+class EVPCipherInitializerKeyArgument extends Expr {
+  EVPCipherInitializerKeyArgument() {
+    exists(EVP_Cipher_Initializer initCall | this = initCall.getKeyArg())
+  }
+}
+
+class EVPCipherInitializerIVArgument extends Expr {
+  EVPCipherInitializerIVArgument() {
+    exists(EVP_Cipher_Initializer initCall | this = initCall.getIVArg())
+  }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/Operations/EVPCipherOperation.qll

@@ -0,0 +1,121 @@
+private import experimental.quantum.Language
+private import experimental.quantum.OpenSSL.CtxFlow as CTXFlow
+private import EVPCipherInitializer
+private import OpenSSLOperationBase
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumers
+
+private module AlgGetterToAlgConsumerConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node source) {
+    exists(OpenSSLAlgorithmValueConsumer c | c.getResultNode() = source)
+  }
+
+  predicate isSink(DataFlow::Node sink) {
+    exists(EVP_Cipher_Operation c | c.getInitCall().getAlgorithmArg() = sink.asExpr())
+  }
+}
+
+private module AlgGetterToAlgConsumerFlow = DataFlow::Global<AlgGetterToAlgConsumerConfig>;
+
+// import experimental.quantum.OpenSSL.AlgorithmValueConsumers.AlgorithmValueConsumers
+// import OpenSSLOperation
+// class EVPCipherOutput extends CipherOutputArtifact {
+//   EVPCipherOutput() { exists(EVP_Cipher_Operation op | op.getOutputArg() = this) }
+//   override DataFlow::Node getOutputNode() { result.asDefiningArgument() = this }
+// }
+//
+/**
+ * see: https://docs.openssl.org/master/man3/EVP_EncryptInit/#synopsis
+ * Base configuration for all EVP cipher operations.
+ * NOTE: cannot extend instance of OpenSSLOperation, as we need to override
+ * elements of OpenSSLOperation (i.e., we are creating an instance)
+ */
+abstract class EVP_Cipher_Operation extends OpenSSLOperation, Crypto::KeyOperationInstance {
+  Expr getContextArg() { result = this.(Call).getArgument(0) }
+
+  override Expr getOutputArg() { result = this.(Call).getArgument(1) }
+
+  override Crypto::KeyOperationSubtype getKeyOperationSubtype() {
+    result instanceof Crypto::TEncryptMode and
+    this.(Call).getTarget().getName().toLowerCase().matches("%encrypt%")
+    or
+    result instanceof Crypto::TDecryptMode and
+    this.(Call).getTarget().getName().toLowerCase().matches("%decrypt%")
+    or
+    result = this.getInitCall().getCipherOperationSubtype() and
+    this.(Call).getTarget().getName().toLowerCase().matches("%cipher%")
+  }
+
+  EVP_Cipher_Initializer getInitCall() {
+    CTXFlow::ctxArgFlowsToCtxArg(result.getContextArg(), this.getContextArg())
+  }
+
+  override Crypto::ConsumerInputDataFlowNode getNonceConsumer() {
+    this.getInitCall().getIVArg() = result.asExpr()
+  }
+
+  override Crypto::ConsumerInputDataFlowNode getInputConsumer() { result = this.getInputNode() }
+
+  override Crypto::ConsumerInputDataFlowNode getKeyConsumer() {
+    this.getInitCall().getKeyArg() = result.asExpr()
+  }
+
+  override Crypto::ArtifactOutputDataFlowNode getOutputArtifact() { result = this.getOutputNode() }
+
+  override Crypto::AlgorithmValueConsumer getAnAlgorithmValueConsumer() {
+    AlgGetterToAlgConsumerFlow::flow(result.(OpenSSLAlgorithmValueConsumer).getResultNode(),
+      DataFlow::exprNode(this.getInitCall().getAlgorithmArg()))
+  }
+}
+
+class EVP_Cipher_Call extends EVP_Cipher_Operation {
+  EVP_Cipher_Call() { this.(Call).getTarget().getName() = "EVP_Cipher" }
+
+  override Expr getInputArg() { result = this.(Call).getArgument(2) }
+}
+
+// NOTE: not modeled as cipher operations, these are intermediate calls
+class EVP_Cipher_Update_Call extends Call {
+  EVP_Cipher_Update_Call() {
+    this.(Call).getTarget().getName() in [
+        "EVP_EncryptUpdate", "EVP_DecryptUpdate", "EVP_CipherUpdate"
+      ]
+  }
+
+  Expr getInputArg() { result = this.(Call).getArgument(3) }
+
+  DataFlow::Node getInputNode() { result.asExpr() = this.getInputArg() }
+
+  Expr getContextArg() { result = this.(Call).getArgument(0) }
+}
+
+class EVP_Cipher_Final_Call extends EVP_Cipher_Operation {
+  EVP_Cipher_Final_Call() {
+    this.(Call).getTarget().getName() in [
+        "EVP_EncryptFinal_ex", "EVP_DecryptFinal_ex", "EVP_CipherFinal_ex", "EVP_EncryptFinal",
+        "EVP_DecryptFinal", "EVP_CipherFinal"
+      ]
+  }
+
+  EVP_Cipher_Update_Call getUpdateCalls() {
+    CTXFlow::ctxArgFlowsToCtxArg(result.getContextArg(), this.getContextArg())
+  }
+
+  override Expr getInputArg() { result = this.getUpdateCalls().getInputArg() }
+
+  override Crypto::ConsumerInputDataFlowNode getInputConsumer() { result = this.getInputNode() }
+}
+
+class EVP_PKEY_Operation extends EVP_Cipher_Operation {
+  EVP_PKEY_Operation() {
+    this.(Call).getTarget().getName() in ["EVP_PKEY_decrypt", "EVP_PKEY_encrypt"]
+  }
+
+  override Expr getInputArg() { result = this.(Call).getArgument(3) }
+  // TODO: how PKEY is initialized is different that symmetric cipher
+  // Consider making an entirely new class for this and specializing
+  // the get init call
+}
+
+class EVPCipherInputArgument extends Expr {
+  EVPCipherInputArgument() { exists(EVP_Cipher_Operation op | op.getInputArg() = this) }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/Operations/EVPHashInitializer.qll

@@ -0,0 +1,17 @@
+import cpp
+
+abstract class EVP_Hash_Initializer extends Call {
+  Expr getContextArg() { result = this.(Call).getArgument(0) }
+
+  abstract Expr getAlgorithmArg();
+}
+
+class EVP_DigestInit_Variant_Calls extends EVP_Hash_Initializer {
+  EVP_DigestInit_Variant_Calls() {
+    this.(Call).getTarget().getName() in [
+        "EVP_DigestInit", "EVP_DigestInit_ex", "EVP_DigestInit_ex2"
+      ]
+  }
+
+  override Expr getAlgorithmArg() { result = this.(Call).getArgument(1) }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/Operations/EVPHashOperation.qll

@@ -0,0 +1,131 @@
+/**
+ * https://docs.openssl.org/3.0/man3/EVP_DigestInit/#synopsis
+ */
+
+private import experimental.quantum.Language
+private import experimental.quantum.OpenSSL.CtxFlow as CTXFlow
+private import experimental.quantum.OpenSSL.LibraryDetector
+private import OpenSSLOperationBase
+private import EVPHashInitializer
+private import experimental.quantum.OpenSSL.AlgorithmValueConsumers.OpenSSLAlgorithmValueConsumers
+
+// import EVPHashConsumers
+abstract class EVP_Hash_Operation extends OpenSSLOperation, Crypto::HashOperationInstance {
+  Expr getContextArg() { result = this.(Call).getArgument(0) }
+
+  EVP_Hash_Initializer getInitCall() {
+    CTXFlow::ctxArgFlowsToCtxArg(result.getContextArg(), this.getContextArg())
+  }
+
+  /**
+   * By default, the algorithm value comes from the init call.
+   * There are variants where this isn't true, in which case the
+   * subclass should override this method.
+   */
+  override Crypto::AlgorithmValueConsumer getAnAlgorithmValueConsumer() {
+    AlgGetterToAlgConsumerFlow::flow(result.(OpenSSLAlgorithmValueConsumer).getResultNode(),
+      DataFlow::exprNode(this.getInitCall().getAlgorithmArg()))
+  }
+}
+
+private module AlgGetterToAlgConsumerConfig implements DataFlow::ConfigSig {
+  predicate isSource(DataFlow::Node source) {
+    exists(OpenSSLAlgorithmValueConsumer c | c.getResultNode() = source)
+  }
+
+  predicate isSink(DataFlow::Node sink) {
+    exists(EVP_Hash_Operation c | c.getInitCall().getAlgorithmArg() = sink.asExpr())
+  }
+}
+
+private module AlgGetterToAlgConsumerFlow = DataFlow::Global<AlgGetterToAlgConsumerConfig>;
+
+//https://docs.openssl.org/3.0/man3/EVP_DigestInit/#synopsis
+class EVP_Q_Digest_Operation extends EVP_Hash_Operation {
+  EVP_Q_Digest_Operation() {
+    this.(Call).getTarget().getName() = "EVP_Q_digest" and
+    isPossibleOpenSSLFunction(this.(Call).getTarget())
+  }
+
+  //override Crypto::AlgorithmConsumer getAlgorithmConsumer() {  }
+  override EVP_Hash_Initializer getInitCall() {
+    // This variant of digest does not use an init
+    // and even if it were used, the init would be ignored/undefined
+    none()
+  }
+
+  override Expr getOutputArg() { result = this.(Call).getArgument(5) }
+
+  override Expr getInputArg() { result = this.(Call).getArgument(3) }
+
+  override Crypto::ArtifactOutputDataFlowNode getOutputArtifact() { result = this.getOutputNode() }
+
+  override Crypto::ConsumerInputDataFlowNode getInputConsumer() { result = this.getInputNode() }
+
+  override Crypto::AlgorithmValueConsumer getAnAlgorithmValueConsumer() {
+    // The operation is a direct algorithm consumer
+    // NOTE: the operation itself is already modeld as a value consumer, so we can
+    // simply return 'this', see modeled hash algorithm consuers for EVP_Q_Digest
+    this = result
+  }
+}
+
+class EVP_Digest_Operation extends EVP_Hash_Operation {
+  EVP_Digest_Operation() {
+    this.(Call).getTarget().getName() = "EVP_Digest" and
+    isPossibleOpenSSLFunction(this.(Call).getTarget())
+  }
+
+  // There is no context argument for this function
+  override Expr getContextArg() { none() }
+
+  override Crypto::AlgorithmValueConsumer getAnAlgorithmValueConsumer() {
+    AlgGetterToAlgConsumerFlow::flow(result.(OpenSSLAlgorithmValueConsumer).getResultNode(),
+      DataFlow::exprNode(this.(Call).getArgument(4)))
+  }
+
+  override EVP_Hash_Initializer getInitCall() {
+    // This variant of digest does not use an init
+    // and even if it were used, the init would be ignored/undefined
+    none()
+  }
+
+  override Expr getOutputArg() { result = this.(Call).getArgument(2) }
+
+  override Expr getInputArg() { result = this.(Call).getArgument(0) }
+
+  override Crypto::ArtifactOutputDataFlowNode getOutputArtifact() { result = this.getOutputNode() }
+
+  override Crypto::ConsumerInputDataFlowNode getInputConsumer() { result = this.getInputNode() }
+}
+
+// NOTE: not modeled as hash operations, these are intermediate calls
+class EVP_Digest_Update_Call extends Call {
+  EVP_Digest_Update_Call() { this.(Call).getTarget().getName() in ["EVP_DigestUpdate"] }
+
+  Expr getInputArg() { result = this.(Call).getArgument(1) }
+
+  DataFlow::Node getInputNode() { result.asExpr() = this.getInputArg() }
+
+  Expr getContextArg() { result = this.(Call).getArgument(0) }
+}
+
+class EVP_Digest_Final_Call extends EVP_Hash_Operation {
+  EVP_Digest_Final_Call() {
+    this.(Call).getTarget().getName() in [
+        "EVP_DigestFinal", "EVP_DigestFinal_ex", "EVP_DigestFinalXOF"
+      ]
+  }
+
+  EVP_Digest_Update_Call getUpdateCalls() {
+    CTXFlow::ctxArgFlowsToCtxArg(result.getContextArg(), this.getContextArg())
+  }
+
+  override Expr getInputArg() { result = this.getUpdateCalls().getInputArg() }
+
+  override Crypto::ConsumerInputDataFlowNode getInputConsumer() { result = this.getInputNode() }
+
+  override Expr getOutputArg() { result = this.(Call).getArgument(1) }
+
+  override Crypto::ArtifactOutputDataFlowNode getOutputArtifact() { result = this.getOutputNode() }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/Operations/OpenSSLOperationBase.qll

@@ -0,0 +1,21 @@
+private import experimental.quantum.Language
+
+abstract class OpenSSLOperation extends Crypto::OperationInstance instanceof Call {
+  abstract Expr getInputArg();
+
+  /**
+   * Can be an argument of a call or a return value of a function.
+   */
+  abstract Expr getOutputArg();
+
+  DataFlow::Node getInputNode() {
+    // Assumed to be default to asExpr
+    result.asExpr() = this.getInputArg()
+  }
+
+  DataFlow::Node getOutputNode() {
+    if exists(Call c | c.getAnArgument() = this)
+    then result.asDefiningArgument() = this
+    else result.asExpr() = this
+  }
+}

cpp/ql/lib/experimental/quantum/OpenSSL/Operations/OpenSSLOperations.qll

@@ -0,0 +1,3 @@
+import OpenSSLOperationBase
+import EVPCipherOperation
+import EVPHashOperation

cpp/ql/lib/experimental/quantum/OpenSSL/Random.qll

@@ -0,0 +1,18 @@
+import cpp
+private import experimental.quantum.Language
+private import LibraryDetector
+private import semmle.code.cpp.dataflow.new.DataFlow
+
+class OpenSSLRandomNumberGeneratorInstance extends Crypto::RandomNumberGenerationInstance instanceof Call
+{
+  OpenSSLRandomNumberGeneratorInstance() {
+    this.(Call).getTarget().getName() in ["RAND_bytes", "RAND_pseudo_bytes"] and
+    isPossibleOpenSSLFunction(this.(Call).getTarget())
+  }
+
+  override Crypto::DataFlowNode getOutputNode() {
+    result.asDefiningArgument() = this.(Call).getArgument(0)
+  }
+
+  override string getGeneratorName() { result = this.(Call).getTarget().getName() }
+}

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

@@ -0,0 +1,948 @@
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+      extensible: summaryModel
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+      - ["", "", True, "Configcmp", "(const char *,const char *)", "", "Argument[*0].Field[**rp].Field[*index]", "ReturnValue", "taint", "dfc-generated"]
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+      - ["", "", True, "Configlist_add", "(rule *,int)", "", "Argument[*0]", "ReturnValue[*].Field[**rp]", "value", "dfc-generated"]
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+      - ["", "", True, "Configlist_add", "(rule *,int)", "", "Argument[1]", "ReturnValue[*].Field[*dot]", "value", "dfc-generated"]
+      - ["", "", True, "Configlist_addbasis", "(rule *,int)", "", "Argument[*0]", "ReturnValue[*].Field[**rp]", "value", "dfc-generated"]
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+      - ["", "", True, "Configlist_addbasis", "(rule *,int)", "", "Argument[1]", "ReturnValue[*].Field[*dot]", "value", "dfc-generated"]
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+      - ["", "", True, "JimDefaultAllocator", "(void *,size_t)", "", "Argument[*0]", "ReturnValue[**]", "value", "dfc-generated"]
+      - ["", "", True, "JimDefaultAllocator", "(void *,size_t)", "", "Argument[*0]", "ReturnValue[*]", "value", "dfc-generated"]
+      - ["", "", True, "JimDefaultAllocator", "(void *,size_t)", "", "Argument[0]", "ReturnValue[**]", "taint", "dfc-generated"]
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+      - ["", "", True, "sqlite3_value_pointer", "(sqlite3_value *,const char *)", "", "Argument[*0].Field[**z]", "ReturnValue[*]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_value_pointer", "(sqlite3_value *,const char *)", "", "Argument[*0].Field[*z]", "ReturnValue", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_value_subtype", "(sqlite3_value *)", "", "Argument[*0].Field[*eSubtype]", "ReturnValue", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_value_text16", "(sqlite3_value *)", "", "Argument[*0]", "ReturnValue", "taint", "df-generated"]
+      - ["", "", True, "sqlite3_value_text16", "(sqlite3_value *)", "", "Argument[*0]", "ReturnValue[*]", "taint", "df-generated"]
+      - ["", "", True, "sqlite3_value_text16be", "(sqlite3_value *)", "", "Argument[*0]", "ReturnValue", "taint", "df-generated"]
+      - ["", "", True, "sqlite3_value_text16be", "(sqlite3_value *)", "", "Argument[*0]", "ReturnValue[*]", "taint", "df-generated"]
+      - ["", "", True, "sqlite3_value_text16le", "(sqlite3_value *)", "", "Argument[*0]", "ReturnValue", "taint", "df-generated"]
+      - ["", "", True, "sqlite3_value_text16le", "(sqlite3_value *)", "", "Argument[*0]", "ReturnValue[*]", "taint", "df-generated"]
+      - ["", "", True, "sqlite3_value_text", "(sqlite3_value *)", "", "Argument[*0]", "ReturnValue", "taint", "df-generated"]
+      - ["", "", True, "sqlite3_value_text", "(sqlite3_value *)", "", "Argument[*0]", "ReturnValue[*]", "taint", "df-generated"]
+      - ["", "", True, "sqlite3_value_type", "(sqlite3_value *)", "", "Argument[*0].Field[*flags]", "ReturnValue", "taint", "dfc-generated"]
+      - ["", "", True, "sqlite3_vmprintf", "(const char *,va_list)", "", "Argument[1]", "Argument[*1]", "taint", "dfc-generated"]
+      - ["", "", True, "sqlite3_vsnprintf", "(int,char *,const char *,va_list)", "", "Argument[*1]", "ReturnValue[*]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_vsnprintf", "(int,char *,const char *,va_list)", "", "Argument[1]", "ReturnValue", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_vsnprintf", "(int,char *,const char *,va_list)", "", "Argument[3]", "Argument[*3]", "taint", "dfc-generated"]
+      - ["", "", True, "sqlite3_vtab_collation", "(sqlite3_index_info *,int)", "", "Argument[0]", "Argument[*0]", "taint", "df-generated"]
+      - ["", "", True, "sqlite3_vtab_distinct", "(sqlite3_index_info *)", "", "Argument[*0].Field[*eDistinct]", "ReturnValue", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_vtab_in", "(sqlite3_index_info *,int,int)", "", "Argument[1]", "Argument[*0].Field[*mHandleIn]", "taint", "dfc-generated"]
+      - ["", "", True, "sqlite3_vtab_in_first", "(sqlite3_value *,sqlite3_value **)", "", "Argument[*0].Field[**z].Field[**pOut]", "Argument[**1]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_vtab_in_first", "(sqlite3_value *,sqlite3_value **)", "", "Argument[*0].Field[**z].Field[*pOut]", "Argument[*1]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_vtab_in_next", "(sqlite3_value *,sqlite3_value **)", "", "Argument[*0].Field[**z].Field[**pOut]", "Argument[**1]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_vtab_in_next", "(sqlite3_value *,sqlite3_value **)", "", "Argument[*0].Field[**z].Field[*pOut]", "Argument[*1]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_vtab_on_conflict", "(sqlite3 *)", "", "Argument[*0].Field[*vtabOnConflict]", "ReturnValue", "taint", "dfc-generated"]
+      - ["", "", True, "sqlite3_vtab_rhs_value", "(sqlite3_index_info *,int,sqlite3_value **)", "", "Argument[1]", "Argument[*0].Field[*aRhs]", "taint", "dfc-generated"]
+      - ["", "", True, "sqlite3_vtab_rhs_value", "(sqlite3_index_info *,int,sqlite3_value **)", "", "Argument[1]", "Argument[*2]", "taint", "dfc-generated"]
+      - ["", "", True, "sqlite3_wal_autocheckpoint", "(sqlite3 *,int)", "", "Argument[1]", "Argument[*0].Field[*pWalArg]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_wal_checkpoint", "(sqlite3 *,const char *)", "", "Argument[0]", "Argument[*0].Field[**pErr].Field[*db]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_wal_checkpoint_v2", "(sqlite3 *,const char *,int,int *,int *)", "", "Argument[0]", "Argument[*0].Field[**pErr].Field[*db]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_wal_hook", "(sqlite3 *,..(*)(..),void *)", "", "Argument[**2]", "Argument[*0].Field[***pWalArg]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_wal_hook", "(sqlite3 *,..(*)(..),void *)", "", "Argument[*2]", "Argument[*0].Field[**pWalArg]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_wal_hook", "(sqlite3 *,..(*)(..),void *)", "", "Argument[1]", "Argument[*0].Field[*xWalCallback]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_wal_hook", "(sqlite3 *,..(*)(..),void *)", "", "Argument[2]", "Argument[*0].Field[*pWalArg]", "value", "dfc-generated"]
+      - ["", "", True, "sqlite3_zipfile_init", "(sqlite3 *,char **,const sqlite3_api_routines *)", "", "Argument[0]", "Argument[*0].Field[**pErr].Field[*db]", "value", "dfc-generated"]
+      - ["", "", True, "statecmp", "(config *,config *)", "", "Argument[*0]", "ReturnValue", "taint", "df-generated"]
+      - ["", "", True, "statecmp", "(config *,config *)", "", "Argument[*1]", "ReturnValue", "taint", "df-generated"]
+      - ["", "", True, "statehash", "(config *)", "", "Argument[*0]", "ReturnValue", "taint", "df-generated"]
+      - ["", "", True, "strhash", "(const char *)", "", "Argument[*0]", "ReturnValue", "taint", "dfc-generated"]
+      - ["", "", True, "strhash", "(const char *)", "", "Argument[0]", "ReturnValue", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_linedir", "(FILE *,int,char *)", "", "Argument[1]", "Argument[*0]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_linedir", "(FILE *,int,char *)", "", "Argument[2]", "Argument[*2]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_print", "(FILE *,lemon *,char *,int *)", "", "Argument[*1].Field[*outname]", "Argument[*1].Field[**outname]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_print", "(FILE *,lemon *,char *,int *)", "", "Argument[*3]", "Argument[*0]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_print", "(FILE *,lemon *,char *,int *)", "", "Argument[2]", "Argument[*2]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_print", "(FILE *,lemon *,char *,int *)", "", "Argument[3]", "Argument[*0]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_print", "(FILE *,lemon *,char *,int *)", "", "Argument[3]", "Argument[*3]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_skip_header", "(FILE *,int *)", "", "Argument[1]", "Argument[*1]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_xfer", "(char *,FILE *,FILE *,int *)", "", "Argument[*0]", "Argument[*2]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_xfer", "(char *,FILE *,FILE *,int *)", "", "Argument[*1]", "Argument[*2]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_xfer", "(char *,FILE *,FILE *,int *)", "", "Argument[0]", "Argument[*2]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_xfer", "(char *,FILE *,FILE *,int *)", "", "Argument[1]", "Argument[*2]", "taint", "dfc-generated"]
+      - ["", "", True, "tplt_xfer", "(char *,FILE *,FILE *,int *)", "", "Argument[3]", "Argument[*3]", "taint", "dfc-generated"]
+      - ["", "", True, "useDummyCS", "(void *,sqlite3 *,int,const char *)", "", "Argument[1]", "Argument[*1].Field[**pErr].Field[*db]", "value", "dfc-generated"]
+      - ["", "", True, "utf8_fromunicode", "(char *,unsigned int)", "", "Argument[0]", "Argument[*0]", "taint", "dfc-generated"]
+      - ["", "", True, "utf8_fromunicode", "(char *,unsigned int)", "", "Argument[1]", "Argument[*0]", "value", "dfc-generated"]
+      - ["", "", True, "zSkipValidUtf8", "(const char *,int,long)", "", "Argument[*0]", "ReturnValue[*]", "value", "dfc-generated"]
+      - ["", "", True, "zSkipValidUtf8", "(const char *,int,long)", "", "Argument[0]", "ReturnValue", "value", "dfc-generated"]
+      - ["", "", True, "zSkipValidUtf8", "(const char *,int,long)", "", "Argument[0]", "ReturnValue[*]", "taint", "dfc-generated"]

cpp/ql/lib/qlpack.yml

@@ -1,5 +1,5 @@
 name: codeql/cpp-all
-version: 4.3.1-dev
+version: 4.3.2-dev
 groups: cpp
 dbscheme: semmlecode.cpp.dbscheme
 extractor: cpp
@@ -8,6 +8,7 @@ upgrades: upgrades
 dependencies:
   codeql/dataflow: ${workspace}
   codeql/mad: ${workspace}
+  codeql/quantum: ${workspace}
   codeql/rangeanalysis: ${workspace}
   codeql/ssa: ${workspace}
   codeql/typeflow: ${workspace}

cpp/ql/lib/semmle/code/cpp/dataflow/internal/DataFlowUtil.qll

@@ -98,19 +98,6 @@ class Node extends TNode {
   /** Gets the location of this element. */
   Location getLocation() { none() } // overridden by subclasses
 
-  /**
-   * Holds if this element is at the specified location.
-   * The location spans column `startcolumn` of line `startline` to
-   * column `endcolumn` of line `endline` in file `filepath`.
-   * For more information, see
-   * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
-   */
-  deprecated predicate hasLocationInfo(
-    string filepath, int startline, int startcolumn, int endline, int endcolumn
-  ) {
-    this.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
-  }
-
   /**
    * Gets an upper bound on the type of this node.
    */

cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowPrivate.qll

@@ -1143,6 +1143,10 @@ private newtype TDataFlowCall =
     FlowSummaryImpl::Private::summaryCallbackRange(c, receiver)
   }
 
+private predicate summarizedCallableIsManual(SummarizedCallable sc) {
+  sc.asSummarizedCallable().applyManualModel()
+}
+
 /**
  * A function call relevant for data flow. This includes calls from source
  * code and calls inside library callables with a flow summary.
@@ -1164,15 +1168,27 @@ class DataFlowCall extends TDataFlowCall {
   Function getStaticCallSourceTarget() { none() }
 
   /**
-   * Gets the target of this call. If a summarized callable exists for the
-   * target this is chosen, and otherwise the callable is the implementation
-   * from the source code.
+   * Gets the target of this call. We use the following strategy for deciding
+   * between the source callable and a summarized callable:
+   * - If there is a manual summary then we always use the manual summary.
+   * - If there is a source callable and we only have generated summaries
+   * we use the source callable.
+   * - If there is no source callable then we use the summary regardless of
+   * whether is it manual or generated.
    */
-  DataFlowCallable getStaticCallTarget() {
+  final DataFlowCallable getStaticCallTarget() {
     exists(Function target | target = this.getStaticCallSourceTarget() |
-      not exists(TSummarizedCallable(target)) and
+      // Don't use the source callable if there is a manual model for the
+      // target
+      not exists(SummarizedCallable sc |
+        sc.asSummarizedCallable() = target and
+        summarizedCallableIsManual(sc)
+      ) and
       result.asSourceCallable() = target
       or
+      // When there is no function body, or when we have a manual model then
+      // we dispatch to the summary.
+      (not target.hasDefinition() or summarizedCallableIsManual(result)) and
       result.asSummarizedCallable() = target
     )
   }
@@ -1567,7 +1583,7 @@ private int countNumberOfBranchesUsingParameter(SwitchInstruction switch, Parame
         |
           exists(Ssa::UseImpl use | use.hasIndexInBlock(useblock, _, sv))
           or
-          exists(Ssa::DefImpl def | def.hasIndexInBlock(useblock, _, sv))
+          exists(Ssa::DefImpl def | def.hasIndexInBlock(sv, useblock, _))
         )
       )
   )
@@ -1814,7 +1830,7 @@ module IteratorFlow {
      */
     private predicate isIteratorWrite(Instruction write, Operand address) {
       exists(Ssa::DefImpl writeDef, IRBlock bb, int i |
-        writeDef.hasIndexInBlock(bb, i, _) and
+        writeDef.hasIndexInBlock(_, bb, i) and
         bb.getInstruction(i) = write and
         address = writeDef.getAddressOperand()
       )

cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qll

@@ -538,19 +538,6 @@ class Node extends TIRDataFlowNode {
     none() // overridden by subclasses
   }
 
-  /**
-   * Holds if this element is at the specified location.
-   * The location spans column `startcolumn` of line `startline` to
-   * column `endcolumn` of line `endline` in file `filepath`.
-   * For more information, see
-   * [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
-   */
-  deprecated predicate hasLocationInfo(
-    string filepath, int startline, int startcolumn, int endline, int endcolumn
-  ) {
-    this.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
-  }
-
   /** Gets a textual representation of this element. */
   cached
   final string toString() {

cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/ExprNodes.qll

@@ -45,6 +45,28 @@ private module Cached {
     )
   }
 
+  private Expr getRankedElementExpr(ArrayAggregateLiteral aggr, int rnk) {
+    result =
+      rank[rnk + 1](Expr e, int elementIndex, int position |
+        e = aggr.getElementExpr(elementIndex, position)
+      |
+        e order by elementIndex, position
+      )
+  }
+
+  private class LastArrayAggregateStore extends StoreInstruction {
+    ArrayAggregateLiteral aggr;
+
+    LastArrayAggregateStore() {
+      exists(int rnk |
+        this.getSourceValue().getUnconvertedResultExpression() = getRankedElementExpr(aggr, rnk) and
+        not exists(getRankedElementExpr(aggr, rnk + 1))
+      )
+    }
+
+    ArrayAggregateLiteral getArrayAggregateLiteral() { result = aggr }
+  }
+
   private Expr getConvertedResultExpressionImpl0(Instruction instr) {
     // IR construction inserts an additional cast to a `size_t` on the extent
     // of a `new[]` expression. The resulting `ConvertInstruction` doesn't have
@@ -95,6 +117,16 @@ private module Cached {
       tco.producesExprResult() and
       result = asDefinitionImpl0(instr)
     )
+    or
+    // IR construction breaks an array aggregate literal `{1, 2, 3}` into a
+    // sequence of `StoreInstruction`s. So there's no instruction `i` for which
+    // `i.getUnconvertedResultExpression() instanceof ArrayAggregateLiteral`.
+    // So we map the instruction node corresponding to the last `Store`
+    // instruction of the sequence to the result of the array aggregate
+    // literal. This makes sense since this store will immediately flow into
+    // the indirect node representing the array. So this node does represent
+    // the array after it has been fully initialized.
+    result = instr.(LastArrayAggregateStore).getArrayAggregateLiteral()
   }
 
   private Expr getConvertedResultExpressionImpl(Instruction instr) {
@@ -264,6 +296,41 @@ private module Cached {
     e = getConvertedResultExpression(node.asInstruction(), n)
   }
 
+  /**
+   * The IR doesn't have an instruction `i` for which this holds:
+   * ```
+   * i.getUnconvertedResultExpression() instanceof ClassAggregateLiteral
+   * ```
+   * and thus we don't automatically get a dataflow node for which:
+   * ```
+   * node.asExpr() instanceof ClassAggregateLiteral
+   * ```
+   * This is because the IR represents a `ClassAggregateLiteral` as a sequence
+   * of field writes. To work around this we map `asExpr` on the
+   * `PostUpdateNode` for the last field write to the class aggregate literal.
+   */
+  private class ClassAggregateInitializerPostUpdateNode extends PostFieldUpdateNode {
+    ClassAggregateLiteral aggr;
+
+    ClassAggregateInitializerPostUpdateNode() {
+      exists(Node node1, FieldContent fc, int position, StoreInstruction store |
+        store.getSourceValue().getUnconvertedResultExpression() =
+          aggr.getFieldExpr(fc.getField(), position) and
+        node1.asInstruction() = store and
+        // This is the last field write from the aggregate initialization.
+        not exists(aggr.getFieldExpr(_, position + 1)) and
+        storeStep(node1, fc, this)
+      )
+    }
+
+    ClassAggregateLiteral getClassAggregateLiteral() { result = aggr }
+  }
+
+  private predicate exprNodeShouldBePostUpdateNode(Node node, Expr e, int n) {
+    node.(ClassAggregateInitializerPostUpdateNode).getClassAggregateLiteral() = e and
+    n = 0
+  }
+
   /** Holds if `node` should be an `IndirectInstruction` that maps `node.asIndirectExpr()` to `e`. */
   private predicate indirectExprNodeShouldBeIndirectInstruction(
     IndirectInstruction node, Expr e, int n, int indirectionIndex
@@ -294,7 +361,8 @@ private module Cached {
     exprNodeShouldBeInstruction(_, e, n) or
     exprNodeShouldBeOperand(_, e, n) or
     exprNodeShouldBeIndirectOutNode(_, e, n) or
-    exprNodeShouldBeIndirectOperand(_, e, n)
+    exprNodeShouldBeIndirectOperand(_, e, n) or
+    exprNodeShouldBePostUpdateNode(_, e, n)
   }
 
   private class InstructionExprNode extends ExprNodeBase, InstructionNode {
@@ -442,6 +510,12 @@ private module Cached {
     final override Expr getConvertedExpr(int n) { exprNodeShouldBeIndirectOperand(this, result, n) }
   }
 
+  private class PostUpdateExprNode extends ExprNodeBase instanceof PostUpdateNode {
+    PostUpdateExprNode() { exprNodeShouldBePostUpdateNode(this, _, _) }
+
+    final override Expr getConvertedExpr(int n) { exprNodeShouldBePostUpdateNode(this, result, n) }
+  }
+
   /**
    * An expression, viewed as a node in a data flow graph.
    */

cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/SsaInternals.qll

@@ -191,7 +191,7 @@ abstract class DefImpl extends TDefImpl {
    * Holds if this definition (or use) has index `index` in block `block`,
    * and is a definition (or use) of the variable `sv`
    */
-  final predicate hasIndexInBlock(IRBlock block, int index, SourceVariable sv) {
+  final predicate hasIndexInBlock(SourceVariable sv, IRBlock block, int index) {
     this.hasIndexInBlock(block, index) and
     sv = this.getSourceVariable()
   }
@@ -891,12 +891,12 @@ private module SsaInput implements SsaImplCommon::InputSig<Location> {
   predicate variableWrite(BasicBlock bb, int i, SourceVariable v, boolean certain) {
     DataFlowImplCommon::forceCachingInSameStage() and
     (
-      exists(DefImpl def | def.hasIndexInBlock(bb, i, v) |
+      exists(DefImpl def | def.hasIndexInBlock(v, bb, i) |
         if def.isCertain() then certain = true else certain = false
       )
       or
       exists(GlobalDefImpl global |
-        global.hasIndexInBlock(bb, i, v) and
+        global.hasIndexInBlock(v, bb, i) and
         certain = true
       )
     )
@@ -934,10 +934,11 @@ module SsaCached {
 }
 
 /** Gets the `DefImpl` corresponding to `def`. */
+pragma[nomagic]
 private DefImpl getDefImpl(SsaImpl::Definition def) {
   exists(SourceVariable sv, IRBlock bb, int i |
     def.definesAt(sv, bb, i) and
-    result.hasIndexInBlock(bb, i, sv)
+    result.hasIndexInBlock(sv, bb, i)
   )
 }
 

cpp/ql/lib/semmle/code/cpp/ir/implementation/aliased_ssa/IRFunction.qll

@@ -58,4 +58,12 @@ class IRFunction extends IRFunctionBase {
    * Gets all blocks in this function.
    */
   final IRBlock getABlock() { result.getEnclosingIRFunction() = this }
+
+  /**
+   * Holds if this function may have incomplete def-use information.
+   *
+   * Def-use information may be omitted for a function when it is too expensive
+   * to compute.
+   */
+  final predicate hasIncompleteSsa() { Construction::hasIncompleteSsa(this) }
 }

cpp/ql/lib/semmle/code/cpp/ir/implementation/aliased_ssa/internal/AliasedSSA.qll

@@ -235,7 +235,7 @@ private newtype TMemoryLocation =
  *
  * Some of these memory locations will be filtered out for performance reasons before being passed to SSA construction.
  */
-abstract private class MemoryLocation0 extends TMemoryLocation {
+abstract class MemoryLocation0 extends TMemoryLocation {
   final string toString() {
     if this.isMayAccess()
     then result = "?" + this.toStringInternal()
@@ -874,7 +874,7 @@ private int numberOfOverlappingUses(MemoryLocation0 def) {
  * Holds if `def` is a busy definition. That is, it has a large number of
  * overlapping uses.
  */
-private predicate isBusyDef(MemoryLocation0 def) { numberOfOverlappingUses(def) > 1024 }
+predicate isBusyDef(MemoryLocation0 def) { numberOfOverlappingUses(def) > 1024 }
 
 /** Holds if `use` is a use that overlaps with a busy definition. */
 private predicate useOverlapWithBusyDef(MemoryLocation0 use) {

cpp/ql/lib/semmle/code/cpp/ir/implementation/aliased_ssa/internal/SSAConstruction.qll

@@ -731,6 +731,20 @@ private module Cached {
     or
     instruction = getChi(result.(UninitializedGroupInstruction))
   }
+
+  /**
+   * Holds if the def-use information for `f` may have been omitted because it
+   * was too expensive to compute. This happens if one of the memory allocations
+   * in `f` is a busy definition (i.e., it has many different overlapping uses).
+   */
+  pragma[nomagic]
+  cached
+  predicate hasIncompleteSsa(IRFunction f) {
+    exists(Alias::MemoryLocation0 defLocation |
+      Alias::isBusyDef(pragma[only_bind_into](defLocation)) and
+      defLocation.getIRFunction() = f
+    )
+  }
 }
 
 private Instruction getNewInstruction(OldInstruction instr) { getOldInstruction(result) = instr }

cpp/ql/lib/semmle/code/cpp/ir/implementation/raw/IRFunction.qll

@@ -58,4 +58,12 @@ class IRFunction extends IRFunctionBase {
    * Gets all blocks in this function.
    */
   final IRBlock getABlock() { result.getEnclosingIRFunction() = this }
+
+  /**
+   * Holds if this function may have incomplete def-use information.
+   *
+   * Def-use information may be omitted for a function when it is too expensive
+   * to compute.
+   */
+  final predicate hasIncompleteSsa() { Construction::hasIncompleteSsa(this) }
 }

cpp/ql/lib/semmle/code/cpp/ir/implementation/raw/internal/IRConstruction.qll

@@ -220,6 +220,8 @@ Instruction getMemoryOperandDefinition(
   none()
 }
 
+predicate hasIncompleteSsa(IRFunction f) { none() }
+
 /**
  * Holds if the operand totally overlaps with its definition and consumes the
  * bit range `[startBitOffset, endBitOffset)`.

cpp/ql/lib/semmle/code/cpp/ir/implementation/unaliased_ssa/IRFunction.qll

@@ -58,4 +58,12 @@ class IRFunction extends IRFunctionBase {
    * Gets all blocks in this function.
    */
   final IRBlock getABlock() { result.getEnclosingIRFunction() = this }
+
+  /**
+   * Holds if this function may have incomplete def-use information.
+   *
+   * Def-use information may be omitted for a function when it is too expensive
+   * to compute.
+   */
+  final predicate hasIncompleteSsa() { Construction::hasIncompleteSsa(this) }
 }

cpp/ql/lib/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SSAConstruction.qll

@@ -731,6 +731,20 @@ private module Cached {
     or
     instruction = getChi(result.(UninitializedGroupInstruction))
   }
+
+  /**
+   * Holds if the def-use information for `f` may have been omitted because it
+   * was too expensive to compute. This happens if one of the memory allocations
+   * in `f` is a busy definition (i.e., it has many different overlapping uses).
+   */
+  pragma[nomagic]
+  cached
+  predicate hasIncompleteSsa(IRFunction f) {
+    exists(Alias::MemoryLocation0 defLocation |
+      Alias::isBusyDef(pragma[only_bind_into](defLocation)) and
+      defLocation.getIRFunction() = f
+    )
+  }
 }
 
 private Instruction getNewInstruction(OldInstruction instr) { getOldInstruction(result) = instr }

cpp/ql/lib/semmle/code/cpp/ir/implementation/unaliased_ssa/internal/SimpleSSA.qll

@@ -73,6 +73,8 @@ class MemoryLocation extends TMemoryLocation {
   final predicate canReuseSsa() { canReuseSsaForVariable(var) }
 }
 
+class MemoryLocation0 = MemoryLocation;
+
 predicate canReuseSsaForOldResult(Instruction instr) { none() }
 
 abstract class VariableGroup extends Unit {
@@ -141,3 +143,9 @@ int getStartBitOffset(MemoryLocation location) { none() }
 
 /** Gets the end bit offset of a `MemoryLocation`, if any. */
 int getEndBitOffset(MemoryLocation location) { none() }
+
+/**
+ * Holds if `def` is a busy definition. That is, it has a large number of
+ * overlapping uses.
+ */
+predicate isBusyDef(MemoryLocation def) { none() }

cpp/ql/lib/semmle/code/cpp/ir/internal/IRCppLanguage.qll

@@ -67,8 +67,13 @@ class Class = Cpp::Class; // Used for inheritance conversions
 predicate hasCaseEdge(string minValue, string maxValue) { hasCaseEdge(_, minValue, maxValue) }
 
 predicate hasPositionalArgIndex(int argIndex) {
-  exists(Cpp::FunctionCall call | exists(call.getArgument(argIndex))) or
+  exists(Cpp::FunctionCall call | exists(call.getArgument(argIndex)))
+  or
   exists(Cpp::BuiltInOperation op | exists(op.getChild(argIndex)))
+  or
+  // Ensure we are always able to output the argument of a call to the delete operator.
+  exists(Cpp::DeleteExpr d) and
+  argIndex = 0
 }
 
 predicate hasAsmOperandIndex(int operandIndex) {

cpp/ql/lib/semmle/code/cpp/rangeanalysis/new/internal/semantic/SemanticExprSpecific.qll

@@ -112,7 +112,14 @@ module SemanticExprConfig {
   }
 
   /** Holds if no range analysis should be performed on the phi edges in `f`. */
-  private predicate excludeFunction(Cpp::Function f) { count(f.getEntryPoint()) > 1 }
+  private predicate excludeFunction(Cpp::Function f) {
+    count(f.getEntryPoint()) > 1
+    or
+    exists(IR::IRFunction irFunction |
+      irFunction.getFunction() = f and
+      irFunction.hasIncompleteSsa()
+    )
+  }
 
   SemType getUnknownExprType(Expr expr) { result = getSemanticType(expr.getResultIRType()) }
 

cpp/ql/lib/semmle/code/cpp/security/FlowSources.qll

@@ -55,12 +55,12 @@ private class LocalModelSource extends LocalFlowSource {
 }
 
 /**
- * A local data flow source that the `argv` parameter to `main`.
+ * A local data flow source that the `argv` parameter to `main` or `wmain`.
  */
 private class ArgvSource extends LocalFlowSource {
   ArgvSource() {
     exists(Function main, Parameter argv |
-      main.hasGlobalName("main") and
+      main.hasGlobalName(["main", "wmain"]) and
       main.getParameter(1) = argv and
       this.asParameter(2) = argv
     )

cpp/ql/lib/semmle/code/cpp/security/Security.qll

@@ -42,58 +42,6 @@ class SecurityOptions extends string {
     )
   }
 
-  /**
-   * The argument of the given function is filled in from user input.
-   */
-  deprecated predicate userInputArgument(FunctionCall functionCall, int arg) {
-    exists(string fname |
-      functionCall.getTarget().hasGlobalOrStdName(fname) and
-      exists(functionCall.getArgument(arg)) and
-      (
-        fname = ["fread", "fgets", "fgetws", "gets"] and arg = 0
-        or
-        fname = "scanf" and arg >= 1
-        or
-        fname = "fscanf" and arg >= 2
-      )
-      or
-      functionCall.getTarget().hasGlobalName(fname) and
-      exists(functionCall.getArgument(arg)) and
-      fname = "getaddrinfo" and
-      arg = 3
-    )
-    or
-    exists(RemoteFlowSourceFunction remote, FunctionOutput output |
-      functionCall.getTarget() = remote and
-      output.isParameterDerefOrQualifierObject(arg) and
-      remote.hasRemoteFlowSource(output, _)
-    )
-  }
-
-  /**
-   * The return value of the given function is filled in from user input.
-   */
-  deprecated predicate userInputReturned(FunctionCall functionCall) {
-    exists(string fname |
-      functionCall.getTarget().getName() = fname and
-      (
-        fname = ["fgets", "gets"] or
-        this.userInputReturn(fname)
-      )
-    )
-    or
-    exists(RemoteFlowSourceFunction remote, FunctionOutput output |
-      functionCall.getTarget() = remote and
-      (output.isReturnValue() or output.isReturnValueDeref()) and
-      remote.hasRemoteFlowSource(output, _)
-    )
-  }
-
-  /**
-   * DEPRECATED: Users should override `userInputReturned()` instead.
-   */
-  deprecated predicate userInputReturn(string function) { none() }
-
   /**
    * The argument of the given function is used for running a process or loading
    * a library.
@@ -108,29 +56,6 @@ class SecurityOptions extends string {
     function = ["LoadLibrary", "LoadLibraryA", "LoadLibraryW"] and arg = 0
   }
 
-  /**
-   * This predicate should hold if the expression is directly
-   * computed from user input. Such expressions are treated as
-   * sources of taint.
-   */
-  deprecated predicate isUserInput(Expr expr, string cause) {
-    exists(FunctionCall fc, int i |
-      this.userInputArgument(fc, i) and
-      expr = fc.getArgument(i) and
-      cause = fc.getTarget().getName()
-    )
-    or
-    exists(FunctionCall fc |
-      this.userInputReturned(fc) and
-      expr = fc and
-      cause = fc.getTarget().getName()
-    )
-    or
-    commandLineArg(expr) and cause = "argv"
-    or
-    expr.(EnvironmentRead).getSourceDescription() = cause
-  }
-
   /**
    * This predicate should hold if the expression raises privilege for the
    * current session. The default definition only holds true for some
@@ -152,16 +77,6 @@ class SecurityOptions extends string {
   }
 }
 
-/**
- * An access to the argv argument to main().
- */
-private predicate commandLineArg(Expr e) {
-  exists(Parameter argv |
-    argv(argv) and
-    argv.getAnAccess() = e
-  )
-}
-
 /** The argv parameter to the main function */
 predicate argv(Parameter argv) {
   exists(Function f |
@@ -173,21 +88,6 @@ predicate argv(Parameter argv) {
 /** Convenience accessor for SecurityOptions.isPureFunction */
 predicate isPureFunction(string name) { exists(SecurityOptions opts | opts.isPureFunction(name)) }
 
-/** Convenience accessor for SecurityOptions.userInputArgument */
-deprecated predicate userInputArgument(FunctionCall functionCall, int arg) {
-  exists(SecurityOptions opts | opts.userInputArgument(functionCall, arg))
-}
-
-/** Convenience accessor for SecurityOptions.userInputReturn */
-deprecated predicate userInputReturned(FunctionCall functionCall) {
-  exists(SecurityOptions opts | opts.userInputReturned(functionCall))
-}
-
-/** Convenience accessor for SecurityOptions.isUserInput */
-deprecated predicate isUserInput(Expr expr, string cause) {
-  exists(SecurityOptions opts | opts.isUserInput(expr, cause))
-}
-
 /** Convenience accessor for SecurityOptions.isProcessOperationArgument */
 predicate isProcessOperationArgument(string function, int arg) {
   exists(SecurityOptions opts | opts.isProcessOperationArgument(function, arg))

cpp/ql/lib/semmle/code/cpp/security/SecurityOptions.qll

@@ -22,28 +22,4 @@ class CustomSecurityOptions extends SecurityOptions {
     // for example: (function = "MySpecialSqlFunction" and arg = 0)
     none() // rules to match custom functions replace this line
   }
-
-  deprecated override predicate userInputArgument(FunctionCall functionCall, int arg) {
-    SecurityOptions.super.userInputArgument(functionCall, arg)
-    or
-    exists(string fname |
-      functionCall.getTarget().hasGlobalName(fname) and
-      exists(functionCall.getArgument(arg)) and
-      // --- custom functions that return user input via one of their arguments:
-      // 'arg' is the 0-based index of the argument that is used to return user input
-      // for example: (fname = "readXmlInto" and arg = 1)
-      none() // rules to match custom functions replace this line
-    )
-  }
-
-  deprecated override predicate userInputReturned(FunctionCall functionCall) {
-    SecurityOptions.super.userInputReturned(functionCall)
-    or
-    exists(string fname |
-      functionCall.getTarget().hasGlobalName(fname) and
-      // --- custom functions that return user input via their return value:
-      // for example: fname = "xmlReadAttribute"
-      none() // rules to match custom functions replace this line
-    )
-  }
 }

cpp/ql/lib/utils/test/dataflow/FlowTestCommon.qll

@@ -26,7 +26,7 @@ module IRFlowTest<IRDataFlow::GlobalFlowSig Flow> implements TestSig {
       n =
         strictcount(int line, int column |
           Flow::flow(any(IRDataFlow::Node otherSource |
-              otherSource.hasLocationInfo(_, line, column, _, _)
+              otherSource.getLocation().hasLocationInfo(_, line, column, _, _)
             ), sink)
         ) and
       (
@@ -55,7 +55,7 @@ module AstFlowTest<AstDataFlow::GlobalFlowSig Flow> implements TestSig {
       n =
         strictcount(int line, int column |
           Flow::flow(any(AstDataFlow::Node otherSource |
-              otherSource.hasLocationInfo(_, line, column, _, _)
+              otherSource.getLocation().hasLocationInfo(_, line, column, _, _)
             ), sink)
         ) and
       (

cpp/ql/src/CHANGELOG.md

@@ -1,3 +1,14 @@
+## 1.4.0
+
+### Query Metadata Changes
+
+* The tag `external/cwe/cwe-14` has been removed from `cpp/memset-may-be-deleted` and the tag `external/cwe/cwe-014` has been added.
+* The tag `external/cwe/cwe-20` has been removed from `cpp/count-untrusted-data-external-api` and the tag `external/cwe/cwe-020` has been added.
+* The tag `external/cwe/cwe-20` has been removed from `cpp/count-untrusted-data-external-api-ir` and the tag `external/cwe/cwe-020` has been added.
+* The tag `external/cwe/cwe-20` has been removed from `cpp/untrusted-data-to-external-api-ir` and the tag `external/cwe/cwe-020` has been added.
+* The tag `external/cwe/cwe-20` has been removed from `cpp/untrusted-data-to-external-api` and the tag `external/cwe/cwe-020` has been added.
+* The tag `external/cwe/cwe-20` has been removed from `cpp/late-check-of-function-argument` and the tag `external/cwe/cwe-020` has been added.
+
 ## 1.3.9
 
 No user-facing changes.

cpp/ql/src/change-notes/2025-05-14-openssl-sqlite-models.md

@@ -0,0 +1,4 @@
+---
+category: minorAnalysis
+---
+* Added flow model for the `SQLite` and `OpenSSL` libraries. This may result in more alerts when running queries on codebases that use these libraries.

cpp/ql/src/change-notes/released/1.4.0.md

@@ -1,6 +1,7 @@
----
-category: queryMetadata
----
+## 1.4.0
+
+### Query Metadata Changes
+
 * The tag `external/cwe/cwe-14` has been removed from `cpp/memset-may-be-deleted` and the tag `external/cwe/cwe-014` has been added.
 * The tag `external/cwe/cwe-20` has been removed from `cpp/count-untrusted-data-external-api` and the tag `external/cwe/cwe-020` has been added.
 * The tag `external/cwe/cwe-20` has been removed from `cpp/count-untrusted-data-external-api-ir` and the tag `external/cwe/cwe-020` has been added.

cpp/ql/src/codeql-pack.release.yml

@@ -1,2 +1,2 @@
 ---
-lastReleaseVersion: 1.3.9
+lastReleaseVersion: 1.4.0

cpp/ql/src/experimental/quantum/PrintCBOMGraph.ql

@@ -0,0 +1,23 @@
+/**
+ * @name Print CBOM Graph
+ * @description Outputs a graph representation of the cryptographic bill of materials.
+ *              This query only supports DGML output, as CodeQL DOT output omits properties.
+ * @kind graph
+ * @id cpp/print-cbom-graph
+ * @tags quantum
+ *       experimental
+ */
+
+import experimental.quantum.Language
+
+query predicate nodes(Crypto::NodeBase node, string key, string value) {
+  Crypto::nodes_graph_impl(node, key, value)
+}
+
+query predicate edges(Crypto::NodeBase source, Crypto::NodeBase target, string key, string value) {
+  Crypto::edges_graph_impl(source, target, key, value)
+}
+
+query predicate graphProperties(string key, string value) {
+  key = "semmle.graphKind" and value = "graph"
+}

cpp/ql/src/qlpack.yml

@@ -1,5 +1,5 @@
 name: codeql/cpp-queries
-version: 1.3.10-dev
+version: 1.4.1-dev
 groups:
   - cpp
   - queries

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

@@ -10,5 +10,5 @@ import internal.CaptureModels
 import SummaryModels
 
 from DataFlowSummaryTargetApi api, string flow
-where flow = ContentSensitive::captureFlow(api, _)
+where flow = ContentSensitive::captureFlow(api, _, _, _, _)
 select flow order by flow

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

@@ -1,15 +0,0 @@
-#!/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()

cpp/ql/src/utils/modelgenerator/internal/CaptureModels.qll

@@ -13,6 +13,8 @@ private import semmle.code.cpp.ir.dataflow.internal.TaintTrackingImplSpecific
 private import semmle.code.cpp.dataflow.new.TaintTracking as Tt
 private import semmle.code.cpp.dataflow.new.DataFlow as Df
 private import codeql.mad.modelgenerator.internal.ModelGeneratorImpl
+private import semmle.code.cpp.models.interfaces.Taint as Taint
+private import semmle.code.cpp.models.interfaces.DataFlow as DataFlow
 
 /**
  * Holds if `f` is a "private" function.
@@ -45,6 +47,26 @@ private predicate isUninterestingForModels(Callable api) {
   api = any(Cpp::LambdaExpression lambda).getLambdaFunction()
   or
   api.isFromUninstantiatedTemplate(_)
+  or
+  // No need to generate models for functions modeled by hand in QL
+  api instanceof Taint::TaintFunction
+  or
+  api instanceof DataFlow::DataFlowFunction
+  or
+  // Don't generate models for main functions
+  api.hasGlobalName("main")
+  or
+  // Don't generate models for system-provided functions. If we want to
+  // generate models for these we should use a database containing the
+  // implementations of those system-provided functions in the source root.
+  not exists(api.getLocation().getFile().getRelativePath())
+  or
+  // Exclude functions in test directories (but not the ones in the CodeQL test directory)
+  exists(Cpp::File f |
+    f = api.getFile() and
+    f.getAbsolutePath().matches("%test%") and
+    not f.getAbsolutePath().matches("%test/library-tests/dataflow/modelgenerator/dataflow/%")
+  )
 }
 
 private predicate relevant(Callable api) {
@@ -189,15 +211,15 @@ module ModelGeneratorCommonInput implements ModelGeneratorCommonInputSig<Cpp::Lo
     )
   }
 
-  string parameterAccess(Parameter p) { parameterContentAccessImpl(p, result) }
+  string parameterApproximateAccess(Parameter p) { parameterContentAccessImpl(p, result) }
 
-  string parameterContentAccess(Parameter p) { parameterContentAccessImpl(p, result) }
+  string parameterExactAccess(Parameter p) { parameterContentAccessImpl(p, result) }
 
   bindingset[c]
-  string paramReturnNodeAsOutput(Callable c, DataFlowPrivate::Position pos) {
+  string paramReturnNodeAsExactOutput(Callable c, DataFlowPrivate::Position pos) {
     exists(Parameter p |
       p.isSourceParameterOf(c, pos) and
-      result = parameterAccess(p)
+      result = parameterExactAccess(p)
     )
     or
     pos.getArgumentIndex() = -1 and
@@ -206,8 +228,8 @@ module ModelGeneratorCommonInput implements ModelGeneratorCommonInputSig<Cpp::Lo
   }
 
   bindingset[c]
-  string paramReturnNodeAsContentOutput(Callable c, DataFlowPrivate::ParameterPosition pos) {
-    result = paramReturnNodeAsOutput(c, pos)
+  string paramReturnNodeAsApproximateOutput(Callable c, DataFlowPrivate::ParameterPosition pos) {
+    result = paramReturnNodeAsExactOutput(c, pos)
   }
 
   pragma[nomagic]

cpp/ql/test/library-tests/dataflow/asExpr/test.cpp

@@ -21,3 +21,20 @@ A& get_ref();
 void test2() {
   take_ref(get_ref()); // $ asExpr="call to get_ref" asIndirectExpr="call to get_ref"
 }
+
+struct S {
+  int a;
+  int b;
+};
+
+void test_aggregate_literal() {
+  S s1 = {1, 2}; // $ asExpr=1 asExpr=2 asExpr={...}
+  const S s2 = {3, 4}; // $ asExpr=3 asExpr=4 asExpr={...}
+  S s3 = (S){5, 6}; // $ asExpr=5 asExpr=6 asExpr={...}
+  const S s4 = (S){7, 8}; // $ asExpr=7 asExpr=8 asExpr={...}
+
+  S s5 = {.a = 1, .b = 2}; // $ asExpr=1 asExpr=2 asExpr={...}
+
+  int xs[] = {1, 2, 3}; // $ asExpr=1 asExpr=2 asExpr=3 asExpr={...}
+  const int ys[] = {[0] = 4, [1] = 5, [0] = 6}; // $ asExpr=4 asExpr=5 asExpr=6 asExpr={...}
+}

cpp/ql/test/library-tests/dataflow/dataflow-tests/localFlow-ir.expected

@@ -17,7 +17,6 @@
 | example.c:17:11:17:16 | *definition of coords | example.c:17:11:17:16 | *definition of coords |
 | example.c:17:11:17:16 | *definition of coords | example.c:17:11:17:16 | *definition of coords |
 | example.c:17:11:17:16 | *definition of coords | example.c:24:13:24:18 | *coords |
-| example.c:17:11:17:16 | *definition of coords [post update] | example.c:17:11:17:16 | *definition of coords |
 | example.c:17:11:17:16 | *definition of coords [post update] | example.c:24:13:24:18 | *coords |
 | example.c:17:11:17:16 | definition of coords | example.c:17:11:17:16 | *definition of coords |
 | example.c:17:11:17:16 | definition of coords | example.c:17:11:17:16 | definition of coords |
@@ -27,6 +26,7 @@
 | example.c:17:11:17:16 | definition of coords | example.c:24:13:24:18 | coords |
 | example.c:17:11:17:16 | definition of coords [post update] | example.c:17:11:17:16 | definition of coords |
 | example.c:17:11:17:16 | definition of coords [post update] | example.c:24:13:24:18 | coords |
+| example.c:17:11:17:16 | {...} | example.c:17:11:17:16 | *definition of coords |
 | example.c:17:19:17:22 | {...} | example.c:17:19:17:22 | {...} |
 | example.c:17:21:17:21 | 0 | example.c:17:21:17:21 | 0 |
 | example.c:19:6:19:6 | *b | example.c:15:37:15:37 | *b |

cpp/ql/test/library-tests/dataflow/external-models/flow.expected

@@ -10,14 +10,33 @@ edges
 | asio_streams.cpp:100:44:100:62 | call to buffer | asio_streams.cpp:103:29:103:39 | *send_buffer | provenance | Sink:MaD:6 |
 | asio_streams.cpp:100:64:100:71 | *send_str | asio_streams.cpp:56:18:56:23 | [summary param] *0 in buffer | provenance |  |
 | asio_streams.cpp:100:64:100:71 | *send_str | asio_streams.cpp:100:44:100:62 | call to buffer | provenance | MaD:10 |
-| test.cpp:4:5:4:11 | [summary param] 0 in ymlStep | test.cpp:4:5:4:11 | [summary] to write: ReturnValue in ymlStep | provenance | MaD:969 |
-| test.cpp:7:10:7:18 | call to ymlSource | test.cpp:7:10:7:18 | call to ymlSource | provenance | Src:MaD:967  |
-| test.cpp:7:10:7:18 | call to ymlSource | test.cpp:11:10:11:10 | x | provenance | Sink:MaD:968 |
-| test.cpp:7:10:7:18 | call to ymlSource | test.cpp:13:18:13:18 | x | provenance |  |
-| test.cpp:13:10:13:16 | call to ymlStep | test.cpp:13:10:13:16 | call to ymlStep | provenance |  |
-| test.cpp:13:10:13:16 | call to ymlStep | test.cpp:15:10:15:10 | y | provenance | Sink:MaD:968 |
-| test.cpp:13:18:13:18 | x | test.cpp:4:5:4:11 | [summary param] 0 in ymlStep | provenance |  |
-| test.cpp:13:18:13:18 | x | test.cpp:13:10:13:16 | call to ymlStep | provenance | MaD:969 |
+| test.cpp:4:5:4:17 | [summary param] 0 in ymlStepManual | test.cpp:4:5:4:17 | [summary] to write: ReturnValue in ymlStepManual | provenance | MaD:23489 |
+| test.cpp:5:5:5:20 | [summary param] 0 in ymlStepGenerated | test.cpp:5:5:5:20 | [summary] to write: ReturnValue in ymlStepGenerated | provenance | MaD:23490 |
+| test.cpp:6:5:6:27 | [summary param] 0 in ymlStepManual_with_body | test.cpp:6:5:6:27 | [summary] to write: ReturnValue in ymlStepManual_with_body | provenance | MaD:23491 |
+| test.cpp:7:47:7:52 | value2 | test.cpp:7:64:7:69 | value2 | provenance |  |
+| test.cpp:7:64:7:69 | value2 | test.cpp:7:5:7:30 | *ymlStepGenerated_with_body | provenance |  |
+| test.cpp:10:10:10:18 | call to ymlSource | test.cpp:10:10:10:18 | call to ymlSource | provenance | Src:MaD:23487  |
+| test.cpp:10:10:10:18 | call to ymlSource | test.cpp:14:10:14:10 | x | provenance | Sink:MaD:23488 |
+| test.cpp:10:10:10:18 | call to ymlSource | test.cpp:17:24:17:24 | x | provenance |  |
+| test.cpp:10:10:10:18 | call to ymlSource | test.cpp:21:27:21:27 | x | provenance |  |
+| test.cpp:10:10:10:18 | call to ymlSource | test.cpp:25:35:25:35 | x | provenance |  |
+| test.cpp:10:10:10:18 | call to ymlSource | test.cpp:32:41:32:41 | x | provenance |  |
+| test.cpp:17:10:17:22 | call to ymlStepManual | test.cpp:17:10:17:22 | call to ymlStepManual | provenance |  |
+| test.cpp:17:10:17:22 | call to ymlStepManual | test.cpp:18:10:18:10 | y | provenance | Sink:MaD:23488 |
+| test.cpp:17:24:17:24 | x | test.cpp:4:5:4:17 | [summary param] 0 in ymlStepManual | provenance |  |
+| test.cpp:17:24:17:24 | x | test.cpp:17:10:17:22 | call to ymlStepManual | provenance | MaD:23489 |
+| test.cpp:21:10:21:25 | call to ymlStepGenerated | test.cpp:21:10:21:25 | call to ymlStepGenerated | provenance |  |
+| test.cpp:21:10:21:25 | call to ymlStepGenerated | test.cpp:22:10:22:10 | z | provenance | Sink:MaD:23488 |
+| test.cpp:21:27:21:27 | x | test.cpp:5:5:5:20 | [summary param] 0 in ymlStepGenerated | provenance |  |
+| test.cpp:21:27:21:27 | x | test.cpp:21:10:21:25 | call to ymlStepGenerated | provenance | MaD:23490 |
+| test.cpp:25:11:25:33 | call to ymlStepManual_with_body | test.cpp:25:11:25:33 | call to ymlStepManual_with_body | provenance |  |
+| test.cpp:25:11:25:33 | call to ymlStepManual_with_body | test.cpp:26:10:26:11 | y2 | provenance | Sink:MaD:23488 |
+| test.cpp:25:35:25:35 | x | test.cpp:6:5:6:27 | [summary param] 0 in ymlStepManual_with_body | provenance |  |
+| test.cpp:25:35:25:35 | x | test.cpp:25:11:25:33 | call to ymlStepManual_with_body | provenance | MaD:23491 |
+| test.cpp:32:11:32:36 | call to ymlStepGenerated_with_body | test.cpp:32:11:32:36 | call to ymlStepGenerated_with_body | provenance |  |
+| test.cpp:32:11:32:36 | call to ymlStepGenerated_with_body | test.cpp:33:10:33:11 | z2 | provenance | Sink:MaD:23488 |
+| test.cpp:32:41:32:41 | x | test.cpp:7:47:7:52 | value2 | provenance |  |
+| test.cpp:32:41:32:41 | x | test.cpp:32:11:32:36 | call to ymlStepGenerated_with_body | provenance |  |
 nodes
 | asio_streams.cpp:56:18:56:23 | [summary param] *0 in buffer | semmle.label | [summary param] *0 in buffer |
 | asio_streams.cpp:56:18:56:23 | [summary] to write: ReturnValue in buffer | semmle.label | [summary] to write: ReturnValue in buffer |
@@ -31,15 +50,37 @@ nodes
 | asio_streams.cpp:100:64:100:71 | *send_str | semmle.label | *send_str |
 | asio_streams.cpp:101:7:101:17 | send_buffer | semmle.label | send_buffer |
 | asio_streams.cpp:103:29:103:39 | *send_buffer | semmle.label | *send_buffer |
-| test.cpp:4:5:4:11 | [summary param] 0 in ymlStep | semmle.label | [summary param] 0 in ymlStep |
-| test.cpp:4:5:4:11 | [summary] to write: ReturnValue in ymlStep | semmle.label | [summary] to write: ReturnValue in ymlStep |
-| test.cpp:7:10:7:18 | call to ymlSource | semmle.label | call to ymlSource |
-| test.cpp:7:10:7:18 | call to ymlSource | semmle.label | call to ymlSource |
-| test.cpp:11:10:11:10 | x | semmle.label | x |
-| test.cpp:13:10:13:16 | call to ymlStep | semmle.label | call to ymlStep |
-| test.cpp:13:10:13:16 | call to ymlStep | semmle.label | call to ymlStep |
-| test.cpp:13:18:13:18 | x | semmle.label | x |
-| test.cpp:15:10:15:10 | y | semmle.label | y |
+| test.cpp:4:5:4:17 | [summary param] 0 in ymlStepManual | semmle.label | [summary param] 0 in ymlStepManual |
+| test.cpp:4:5:4:17 | [summary] to write: ReturnValue in ymlStepManual | semmle.label | [summary] to write: ReturnValue in ymlStepManual |
+| test.cpp:5:5:5:20 | [summary param] 0 in ymlStepGenerated | semmle.label | [summary param] 0 in ymlStepGenerated |
+| test.cpp:5:5:5:20 | [summary] to write: ReturnValue in ymlStepGenerated | semmle.label | [summary] to write: ReturnValue in ymlStepGenerated |
+| test.cpp:6:5:6:27 | [summary param] 0 in ymlStepManual_with_body | semmle.label | [summary param] 0 in ymlStepManual_with_body |
+| test.cpp:6:5:6:27 | [summary] to write: ReturnValue in ymlStepManual_with_body | semmle.label | [summary] to write: ReturnValue in ymlStepManual_with_body |
+| test.cpp:7:5:7:30 | *ymlStepGenerated_with_body | semmle.label | *ymlStepGenerated_with_body |
+| test.cpp:7:47:7:52 | value2 | semmle.label | value2 |
+| test.cpp:7:64:7:69 | value2 | semmle.label | value2 |
+| test.cpp:10:10:10:18 | call to ymlSource | semmle.label | call to ymlSource |
+| test.cpp:10:10:10:18 | call to ymlSource | semmle.label | call to ymlSource |
+| test.cpp:14:10:14:10 | x | semmle.label | x |
+| test.cpp:17:10:17:22 | call to ymlStepManual | semmle.label | call to ymlStepManual |
+| test.cpp:17:10:17:22 | call to ymlStepManual | semmle.label | call to ymlStepManual |
+| test.cpp:17:24:17:24 | x | semmle.label | x |
+| test.cpp:18:10:18:10 | y | semmle.label | y |
+| test.cpp:21:10:21:25 | call to ymlStepGenerated | semmle.label | call to ymlStepGenerated |
+| test.cpp:21:10:21:25 | call to ymlStepGenerated | semmle.label | call to ymlStepGenerated |
+| test.cpp:21:27:21:27 | x | semmle.label | x |
+| test.cpp:22:10:22:10 | z | semmle.label | z |
+| test.cpp:25:11:25:33 | call to ymlStepManual_with_body | semmle.label | call to ymlStepManual_with_body |
+| test.cpp:25:11:25:33 | call to ymlStepManual_with_body | semmle.label | call to ymlStepManual_with_body |
+| test.cpp:25:35:25:35 | x | semmle.label | x |
+| test.cpp:26:10:26:11 | y2 | semmle.label | y2 |
+| test.cpp:32:11:32:36 | call to ymlStepGenerated_with_body | semmle.label | call to ymlStepGenerated_with_body |
+| test.cpp:32:11:32:36 | call to ymlStepGenerated_with_body | semmle.label | call to ymlStepGenerated_with_body |
+| test.cpp:32:41:32:41 | x | semmle.label | x |
+| test.cpp:33:10:33:11 | z2 | semmle.label | z2 |
 subpaths
 | asio_streams.cpp:100:64:100:71 | *send_str | asio_streams.cpp:56:18:56:23 | [summary param] *0 in buffer | asio_streams.cpp:56:18:56:23 | [summary] to write: ReturnValue in buffer | asio_streams.cpp:100:44:100:62 | call to buffer |
-| test.cpp:13:18:13:18 | x | test.cpp:4:5:4:11 | [summary param] 0 in ymlStep | test.cpp:4:5:4:11 | [summary] to write: ReturnValue in ymlStep | test.cpp:13:10:13:16 | call to ymlStep |
+| test.cpp:17:24:17:24 | x | test.cpp:4:5:4:17 | [summary param] 0 in ymlStepManual | test.cpp:4:5:4:17 | [summary] to write: ReturnValue in ymlStepManual | test.cpp:17:10:17:22 | call to ymlStepManual |
+| test.cpp:21:27:21:27 | x | test.cpp:5:5:5:20 | [summary param] 0 in ymlStepGenerated | test.cpp:5:5:5:20 | [summary] to write: ReturnValue in ymlStepGenerated | test.cpp:21:10:21:25 | call to ymlStepGenerated |
+| test.cpp:25:35:25:35 | x | test.cpp:6:5:6:27 | [summary param] 0 in ymlStepManual_with_body | test.cpp:6:5:6:27 | [summary] to write: ReturnValue in ymlStepManual_with_body | test.cpp:25:11:25:33 | call to ymlStepManual_with_body |
+| test.cpp:32:41:32:41 | x | test.cpp:7:47:7:52 | value2 | test.cpp:7:5:7:30 | *ymlStepGenerated_with_body | test.cpp:32:11:32:36 | call to ymlStepGenerated_with_body |

cpp/ql/test/library-tests/dataflow/external-models/flow.ext.yml

@@ -13,4 +13,7 @@ extensions:
       pack: codeql/cpp-all
       extensible: summaryModel
     data: # namespace, type, subtypes, name, signature, ext, input, output, kind, provenance
-      - ["", "", False, "ymlStep", "", "", "Argument[0]", "ReturnValue", "taint", "manual"]
+      - ["", "", False, "ymlStepManual", "", "", "Argument[0]", "ReturnValue", "taint", "manual"]
+      - ["", "", False, "ymlStepGenerated", "", "", "Argument[0]", "ReturnValue", "taint", "df-generated"]
+      - ["", "", False, "ymlStepManual_with_body", "", "", "Argument[0]", "ReturnValue", "taint", "manual"]
+      - ["", "", False, "ymlStepGenerated_with_body", "", "", "Argument[0]", "ReturnValue", "taint", "df-generated"]

cpp/ql/test/library-tests/dataflow/external-models/sinks.expected

@@ -1,5 +1,10 @@
 | asio_streams.cpp:93:29:93:39 | *recv_buffer | remote-sink |
 | asio_streams.cpp:103:29:103:39 | *send_buffer | remote-sink |
-| test.cpp:9:10:9:10 | 0 | test-sink |
-| test.cpp:11:10:11:10 | x | test-sink |
-| test.cpp:15:10:15:10 | y | test-sink |
+| test.cpp:12:10:12:10 | 0 | test-sink |
+| test.cpp:14:10:14:10 | x | test-sink |
+| test.cpp:18:10:18:10 | y | test-sink |
+| test.cpp:22:10:22:10 | z | test-sink |
+| test.cpp:26:10:26:11 | y2 | test-sink |
+| test.cpp:29:10:29:11 | y3 | test-sink |
+| test.cpp:33:10:33:11 | z2 | test-sink |
+| test.cpp:36:10:36:11 | z3 | test-sink |

cpp/ql/test/library-tests/dataflow/external-models/sources.expected

@@ -1,2 +1,2 @@
 | asio_streams.cpp:87:34:87:44 | read_until output argument | remote |
-| test.cpp:7:10:7:18 | call to ymlSource | local |
+| test.cpp:10:10:10:18 | call to ymlSource | local |

cpp/ql/test/library-tests/dataflow/external-models/steps.expected

@@ -1,2 +1,7 @@
 | asio_streams.cpp:100:64:100:71 | *send_str | asio_streams.cpp:100:44:100:62 | call to buffer |
-| test.cpp:13:18:13:18 | x | test.cpp:13:10:13:16 | call to ymlStep |
+| test.cpp:17:24:17:24 | x | test.cpp:17:10:17:22 | call to ymlStepManual |
+| test.cpp:21:27:21:27 | x | test.cpp:21:10:21:25 | call to ymlStepGenerated |
+| test.cpp:25:35:25:35 | x | test.cpp:25:11:25:33 | call to ymlStepManual_with_body |
+| test.cpp:28:35:28:35 | 0 | test.cpp:28:11:28:33 | call to ymlStepManual_with_body |
+| test.cpp:32:38:32:38 | 0 | test.cpp:32:11:32:36 | call to ymlStepGenerated_with_body |
+| test.cpp:35:38:35:38 | x | test.cpp:35:11:35:36 | call to ymlStepGenerated_with_body |

cpp/ql/test/library-tests/dataflow/external-models/steps.ext.yml

@@ -3,4 +3,7 @@ extensions:
       pack: codeql/cpp-all
       extensible: summaryModel
     data: # namespace, type, subtypes, name, signature, ext, input, output, kind, provenance
-      - ["", "", False, "ymlStep", "", "", "Argument[0]", "ReturnValue", "taint", "manual"]
+      - ["", "", False, "ymlStepManual", "", "", "Argument[0]", "ReturnValue", "taint", "manual"]
+      - ["", "", False, "ymlStepGenerated", "", "", "Argument[0]", "ReturnValue", "taint", "df-generated"]
+      - ["", "", False, "ymlStepManual_with_body", "", "", "Argument[0]", "ReturnValue", "taint", "manual"]
+      - ["", "", False, "ymlStepGenerated_with_body", "", "", "Argument[0]", "ReturnValue", "taint", "df-generated"]

cpp/ql/test/library-tests/dataflow/external-models/test.cpp

@@ -1,7 +1,10 @@
 
 int ymlSource();
 void ymlSink(int value);
-int ymlStep(int value);
+int ymlStepManual(int value);
+int ymlStepGenerated(int value);
+int ymlStepManual_with_body(int value1, int value2) { return value2; }
+int ymlStepGenerated_with_body(int value, int value2) { return value2; }
 
 void test() {
 	int x = ymlSource();
@@ -10,7 +13,25 @@ void test() {
 
 	ymlSink(x); // $ ir
 
-	int y = ymlStep(x);
-
+	// ymlStepManual is manually modeled so we should always use the model
+	int y = ymlStepManual(x);
 	ymlSink(y); // $ ir
+
+	// ymlStepGenerated is modeled by the model generator so we should use the model only if there is no body
+	int z = ymlStepGenerated(x);
+	ymlSink(z); // $ ir
+
+	// ymlStepManual_with_body is manually modeled so we should always use the model
+	int y2 = ymlStepManual_with_body(x, 0);
+	ymlSink(y2); // $ ir
+
+	int y3 = ymlStepManual_with_body(0, x);
+	ymlSink(y3); // clean
+
+	// ymlStepGenerated_with_body is modeled by the model generator so we should use the model only if there is no body
+	int z2 = ymlStepGenerated_with_body(0, x);
+	ymlSink(z2); // $ ir
+
+	int z3 = ymlStepGenerated_with_body(x, 0);
+	ymlSink(z3); // clean
 }

cpp/ql/test/library-tests/dataflow/fields/ir-path-flow.expected

@@ -863,12 +863,12 @@ edges
 | struct_init.c:24:10:24:12 | absink output argument [a] | struct_init.c:28:5:28:7 | *& ... [a] | provenance |  |
 | struct_init.c:26:16:26:20 | *definition of outer [nestedAB, a] | struct_init.c:31:8:31:12 | *outer [nestedAB, a] | provenance |  |
 | struct_init.c:26:16:26:20 | *definition of outer [nestedAB, a] | struct_init.c:36:11:36:15 | *outer [nestedAB, a] | provenance |  |
-| struct_init.c:26:16:26:20 | *definition of outer [post update] [*pointerAB, a] | struct_init.c:33:8:33:12 | *outer [*pointerAB, a] | provenance |  |
 | struct_init.c:26:16:26:20 | *definition of outer [post update] [nestedAB, a] | struct_init.c:26:16:26:20 | *definition of outer [nestedAB, a] | provenance |  |
+| struct_init.c:26:16:26:20 | {...} [*pointerAB, a] | struct_init.c:33:8:33:12 | *outer [*pointerAB, a] | provenance |  |
 | struct_init.c:26:23:29:3 | *{...} [post update] [a] | struct_init.c:26:16:26:20 | *definition of outer [post update] [nestedAB, a] | provenance |  |
 | struct_init.c:27:7:27:16 | call to user_input | struct_init.c:26:23:29:3 | *{...} [post update] [a] | provenance |  |
 | struct_init.c:27:7:27:16 | call to user_input | struct_init.c:27:7:27:16 | call to user_input | provenance |  |
-| struct_init.c:28:5:28:7 | *& ... [a] | struct_init.c:26:16:26:20 | *definition of outer [post update] [*pointerAB, a] | provenance |  |
+| struct_init.c:28:5:28:7 | *& ... [a] | struct_init.c:26:16:26:20 | {...} [*pointerAB, a] | provenance |  |
 | struct_init.c:31:8:31:12 | *outer [nestedAB, a] | struct_init.c:31:14:31:21 | *nestedAB [a] | provenance |  |
 | struct_init.c:31:14:31:21 | *nestedAB [a] | struct_init.c:31:23:31:23 | a | provenance |  |
 | struct_init.c:33:8:33:12 | *outer [*pointerAB, a] | struct_init.c:33:14:33:22 | *pointerAB [a] | provenance |  |
@@ -879,8 +879,8 @@ edges
 | struct_init.c:40:13:40:14 | *definition of ab [post update] [a] | struct_init.c:40:13:40:14 | *definition of ab [a] | provenance |  |
 | struct_init.c:40:20:40:29 | call to user_input | struct_init.c:40:13:40:14 | *definition of ab [post update] [a] | provenance |  |
 | struct_init.c:40:20:40:29 | call to user_input | struct_init.c:40:20:40:29 | call to user_input | provenance |  |
-| struct_init.c:41:16:41:20 | *definition of outer [post update] [*pointerAB, a] | struct_init.c:46:10:46:14 | *outer [*pointerAB, a] | provenance |  |
-| struct_init.c:43:5:43:7 | *& ... [a] | struct_init.c:41:16:41:20 | *definition of outer [post update] [*pointerAB, a] | provenance |  |
+| struct_init.c:41:16:41:20 | {...} [*pointerAB, a] | struct_init.c:46:10:46:14 | *outer [*pointerAB, a] | provenance |  |
+| struct_init.c:43:5:43:7 | *& ... [a] | struct_init.c:41:16:41:20 | {...} [*pointerAB, a] | provenance |  |
 | struct_init.c:46:10:46:14 | *outer [*pointerAB, a] | struct_init.c:46:16:46:24 | *pointerAB [a] | provenance |  |
 | struct_init.c:46:16:46:24 | *pointerAB [a] | struct_init.c:14:24:14:25 | *ab [a] | provenance |  |
 nodes
@@ -1773,8 +1773,8 @@ nodes
 | struct_init.c:24:10:24:12 | *& ... [a] | semmle.label | *& ... [a] |
 | struct_init.c:24:10:24:12 | absink output argument [a] | semmle.label | absink output argument [a] |
 | struct_init.c:26:16:26:20 | *definition of outer [nestedAB, a] | semmle.label | *definition of outer [nestedAB, a] |
-| struct_init.c:26:16:26:20 | *definition of outer [post update] [*pointerAB, a] | semmle.label | *definition of outer [post update] [*pointerAB, a] |
 | struct_init.c:26:16:26:20 | *definition of outer [post update] [nestedAB, a] | semmle.label | *definition of outer [post update] [nestedAB, a] |
+| struct_init.c:26:16:26:20 | {...} [*pointerAB, a] | semmle.label | {...} [*pointerAB, a] |
 | struct_init.c:26:23:29:3 | *{...} [post update] [a] | semmle.label | *{...} [post update] [a] |
 | struct_init.c:27:7:27:16 | call to user_input | semmle.label | call to user_input |
 | struct_init.c:27:7:27:16 | call to user_input | semmle.label | call to user_input |
@@ -1791,7 +1791,7 @@ nodes
 | struct_init.c:40:13:40:14 | *definition of ab [post update] [a] | semmle.label | *definition of ab [post update] [a] |
 | struct_init.c:40:20:40:29 | call to user_input | semmle.label | call to user_input |
 | struct_init.c:40:20:40:29 | call to user_input | semmle.label | call to user_input |
-| struct_init.c:41:16:41:20 | *definition of outer [post update] [*pointerAB, a] | semmle.label | *definition of outer [post update] [*pointerAB, a] |
+| struct_init.c:41:16:41:20 | {...} [*pointerAB, a] | semmle.label | {...} [*pointerAB, a] |
 | struct_init.c:43:5:43:7 | *& ... [a] | semmle.label | *& ... [a] |
 | struct_init.c:46:10:46:14 | *outer [*pointerAB, a] | semmle.label | *outer [*pointerAB, a] |
 | struct_init.c:46:16:46:24 | *pointerAB [a] | semmle.label | *pointerAB [a] |

cpp/ql/test/library-tests/dataflow/modelgenerator/dataflow/CaptureContentSummaryModels.ql

@@ -4,7 +4,9 @@ import SummaryModels
 import InlineModelsAsDataTest
 
 module InlineMadTestConfig implements InlineMadTestConfigSig {
-  string getCapturedModel(MadRelevantFunction c) { result = ContentSensitive::captureFlow(c, _) }
+  string getCapturedModel(MadRelevantFunction c) {
+    result = ContentSensitive::captureFlow(c, _, _, _, _)
+  }
 
   string getKind() { result = "contentbased-summary" }
 }

cpp/ql/test/library-tests/dataflow/modelgenerator/dataflow/CaptureHeuristicSummaryModels.ql

@@ -4,7 +4,7 @@ import SummaryModels
 import InlineModelsAsDataTest
 
 module InlineMadTestConfig implements InlineMadTestConfigSig {
-  string getCapturedModel(MadRelevantFunction c) { result = Heuristic::captureFlow(c) }
+  string getCapturedModel(MadRelevantFunction c) { result = Heuristic::captureFlow(c, _) }
 
   string getKind() { result = "heuristic-summary" }
 }

cpp/ql/test/library-tests/dataflow/modelgenerator/dataflow/summaries.cpp

@@ -10,32 +10,32 @@ namespace Models {
         //No model as destructors are excluded from model generation.
         ~BasicFlow() = default;
 
-        //heuristic-summary=Models;BasicFlow;true;returnThis;(int *);;Argument[-1];ReturnValue[*];taint;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnThis;(int *);;Argument[-1];ReturnValue[*];value;df-generated
         //contentbased-summary=Models;BasicFlow;true;returnThis;(int *);;Argument[-1];ReturnValue[*];value;dfc-generated
         BasicFlow* returnThis(int* input) {
             return this;
         }
 
-        //heuristic-summary=Models;BasicFlow;true;returnParam0;(int *,int *);;Argument[0];ReturnValue;taint;df-generated
-        //heuristic-summary=Models;BasicFlow;true;returnParam0;(int *,int *);;Argument[*0];ReturnValue[*];taint;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnParam0;(int *,int *);;Argument[0];ReturnValue;value;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnParam0;(int *,int *);;Argument[*0];ReturnValue[*];value;df-generated
         //contentbased-summary=Models;BasicFlow;true;returnParam0;(int *,int *);;Argument[0];ReturnValue;value;dfc-generated
         //contentbased-summary=Models;BasicFlow;true;returnParam0;(int *,int *);;Argument[*0];ReturnValue[*];value;dfc-generated
         int* returnParam0(int* input0, int* input1) {
             return input0;
         }
 
-        //heuristic-summary=Models;BasicFlow;true;returnParam1;(int *,int *);;Argument[1];ReturnValue;taint;df-generated
-        //heuristic-summary=Models;BasicFlow;true;returnParam1;(int *,int *);;Argument[*1];ReturnValue[*];taint;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnParam1;(int *,int *);;Argument[1];ReturnValue;value;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnParam1;(int *,int *);;Argument[*1];ReturnValue[*];value;df-generated
         //contentbased-summary=Models;BasicFlow;true;returnParam1;(int *,int *);;Argument[1];ReturnValue;value;dfc-generated
         //contentbased-summary=Models;BasicFlow;true;returnParam1;(int *,int *);;Argument[*1];ReturnValue[*];value;dfc-generated
         int* returnParam1(int* input0, int* input1) {
             return input1;
         }
 
-        //heuristic-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[1];ReturnValue;taint;df-generated
-        //heuristic-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[*1];ReturnValue[*];taint;df-generated
-        //heuristic-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[2];ReturnValue;taint;df-generated
-        //heuristic-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[*2];ReturnValue[*];taint;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[1];ReturnValue;value;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[*1];ReturnValue[*];value;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[2];ReturnValue;value;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[*2];ReturnValue[*];value;df-generated
         //contentbased-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[1];ReturnValue;value;dfc-generated
         //contentbased-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[*1];ReturnValue[*];value;dfc-generated
         //contentbased-summary=Models;BasicFlow;true;returnParamMultiple;(bool,int *,int *);;Argument[2];ReturnValue;value;dfc-generated
@@ -46,9 +46,9 @@ namespace Models {
 
         //heuristic-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[0];Argument[*1];taint;df-generated
         //heuristic-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[0];ReturnValue[*];taint;df-generated
-        //heuristic-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[*0];ReturnValue[*];taint;df-generated
-        //heuristic-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[1];ReturnValue;taint;df-generated
-        //heuristic-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[*0];Argument[*1];taint;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[*0];ReturnValue[*];value;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[1];ReturnValue;value;df-generated
+        //heuristic-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[*0];Argument[*1];value;df-generated
         //contentbased-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[0];Argument[*1];taint;dfc-generated
         //contentbased-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[0];ReturnValue[*];taint;dfc-generated
         //contentbased-summary=Models;BasicFlow;true;returnSubstring;(const char *,char *);;Argument[*0];ReturnValue[*];value;dfc-generated
@@ -79,14 +79,14 @@ namespace Models {
     struct TemplatedFlow {
         T tainted;
 
-        //heuristic-summary=Models;TemplatedFlow<T>;true;template_returnThis;(T);;Argument[-1];ReturnValue[*];taint;df-generated
+        //heuristic-summary=Models;TemplatedFlow<T>;true;template_returnThis;(T);;Argument[-1];ReturnValue[*];value;df-generated
         //contentbased-summary=Models;TemplatedFlow<T>;true;template_returnThis;(T);;Argument[-1];ReturnValue[*];value;dfc-generated
         TemplatedFlow<T>* template_returnThis(T input) {
             return this;
         }
 
-        //heuristic-summary=Models;TemplatedFlow<T>;true;template_returnParam0;(T *,T *);;Argument[0];ReturnValue;taint;df-generated
-        //heuristic-summary=Models;TemplatedFlow<T>;true;template_returnParam0;(T *,T *);;Argument[*0];ReturnValue[*];taint;df-generated
+        //heuristic-summary=Models;TemplatedFlow<T>;true;template_returnParam0;(T *,T *);;Argument[0];ReturnValue;value;df-generated
+        //heuristic-summary=Models;TemplatedFlow<T>;true;template_returnParam0;(T *,T *);;Argument[*0];ReturnValue[*];value;df-generated
         //contentbased-summary=Models;TemplatedFlow<T>;true;template_returnParam0;(T *,T *);;Argument[0];ReturnValue;value;dfc-generated
         //contentbased-summary=Models;TemplatedFlow<T>;true;template_returnParam0;(T *,T *);;Argument[*0];ReturnValue[*];value;dfc-generated
         T* template_returnParam0(T* input0, T* input1) {
@@ -105,8 +105,8 @@ namespace Models {
             return tainted;
         }
 
-        //heuristic-summary=Models;TemplatedFlow<T>;true;templated_function<U>;(U *,T *);;Argument[0];ReturnValue;taint;df-generated
-        //heuristic-summary=Models;TemplatedFlow<T>;true;templated_function<U>;(U *,T *);;Argument[*0];ReturnValue[*];taint;df-generated
+        //heuristic-summary=Models;TemplatedFlow<T>;true;templated_function<U>;(U *,T *);;Argument[0];ReturnValue;value;df-generated
+        //heuristic-summary=Models;TemplatedFlow<T>;true;templated_function<U>;(U *,T *);;Argument[*0];ReturnValue[*];value;df-generated
         //contentbased-summary=Models;TemplatedFlow<T>;true;templated_function<U>;(U *,T *);;Argument[0];ReturnValue;value;dfc-generated
         //contentbased-summary=Models;TemplatedFlow<T>;true;templated_function<U>;(U *,T *);;Argument[*0];ReturnValue[*];value;dfc-generated
         template<typename U>
@@ -130,7 +130,7 @@ namespace Models {
 }
 
 //heuristic-summary=;;true;toplevel_function;(int *);;Argument[0];ReturnValue;taint;df-generated
-//heuristic-summary=;;true;toplevel_function;(int *);;Argument[*0];ReturnValue;taint;df-generated
+//heuristic-summary=;;true;toplevel_function;(int *);;Argument[*0];ReturnValue;value;df-generated
 //heuristic-summary=;;true;toplevel_function;(int *);;Argument[0];Argument[*0];taint;df-generated
 //contentbased-summary=;;true;toplevel_function;(int *);;Argument[0];Argument[*0];taint;dfc-generated
 //contentbased-summary=;;true;toplevel_function;(int *);;Argument[0];ReturnValue;taint;dfc-generated
@@ -145,13 +145,13 @@ static int static_toplevel_function(int* p) {
 }
 
 struct NonFinalStruct {
-    //heuristic-summary=;NonFinalStruct;true;public_not_final_member_function;(int);;Argument[0];ReturnValue;taint;df-generated
+    //heuristic-summary=;NonFinalStruct;true;public_not_final_member_function;(int);;Argument[0];ReturnValue;value;df-generated
     //contentbased-summary=;NonFinalStruct;true;public_not_final_member_function;(int);;Argument[0];ReturnValue;value;dfc-generated
     virtual int public_not_final_member_function(int x) {
         return x;
     }
 
-    //heuristic-summary=;NonFinalStruct;false;public_final_member_function;(int);;Argument[0];ReturnValue;taint;df-generated
+    //heuristic-summary=;NonFinalStruct;false;public_final_member_function;(int);;Argument[0];ReturnValue;value;df-generated
     //contentbased-summary=;NonFinalStruct;false;public_final_member_function;(int);;Argument[0];ReturnValue;value;dfc-generated
     virtual int public_final_member_function(int x) final {
         return x;
@@ -171,13 +171,13 @@ protected:
 };
 
 struct FinalStruct final {
-    //heuristic-summary=;FinalStruct;false;public_not_final_member_function_2;(int);;Argument[0];ReturnValue;taint;df-generated
+    //heuristic-summary=;FinalStruct;false;public_not_final_member_function_2;(int);;Argument[0];ReturnValue;value;df-generated
     //contentbased-summary=;FinalStruct;false;public_not_final_member_function_2;(int);;Argument[0];ReturnValue;value;dfc-generated
     virtual int public_not_final_member_function_2(int x) {
         return x;
     }
 
-    //heuristic-summary=;FinalStruct;false;public_final_member_function_2;(int);;Argument[0];ReturnValue;taint;df-generated
+    //heuristic-summary=;FinalStruct;false;public_final_member_function_2;(int);;Argument[0];ReturnValue;value;df-generated
     //contentbased-summary=;FinalStruct;false;public_final_member_function_2;(int);;Argument[0];ReturnValue;value;dfc-generated
     virtual int public_final_member_function_2(int x) final {
         return x;
@@ -211,7 +211,7 @@ struct HasInt {
 //contentbased-summary=;;true;copy_struct;(HasInt *,const HasInt *);;Argument[*1];Argument[*0];value;dfc-generated
 //heuristic-summary=;;true;copy_struct;(HasInt *,const HasInt *);;Argument[1];Argument[*0];taint;df-generated
 //heuristic-summary=;;true;copy_struct;(HasInt *,const HasInt *);;Argument[1];Argument[*1];taint;df-generated
-//heuristic-summary=;;true;copy_struct;(HasInt *,const HasInt *);;Argument[*1];Argument[*0];taint;df-generated
+//heuristic-summary=;;true;copy_struct;(HasInt *,const HasInt *);;Argument[*1];Argument[*0];value;df-generated
 int copy_struct(HasInt *out, const HasInt *in) {
     *out = *in;
     return 1;

cpp/ql/test/library-tests/ir/no-function-calls/PrintAST.expected

@@ -0,0 +1,36 @@
+#-----| [CopyAssignmentOperator] __va_list_tag& __va_list_tag::operator=(__va_list_tag const&)
+#-----|   <params>: 
+#-----|     getParameter(0): [Parameter] (unnamed parameter 0)
+#-----|         Type = [LValueReferenceType] const __va_list_tag &
+#-----| [MoveAssignmentOperator] __va_list_tag& __va_list_tag::operator=(__va_list_tag&&)
+#-----|   <params>: 
+#-----|     getParameter(0): [Parameter] (unnamed parameter 0)
+#-----|         Type = [RValueReferenceType] __va_list_tag &&
+#-----| [Operator,TopLevelFunction] void operator delete(void*)
+#-----|   <params>: 
+#-----|     getParameter(0): [Parameter] (unnamed parameter 0)
+#-----|         Type = [VoidPointerType] void *
+test.cpp:
+#    5| [TopLevelFunction] void foo(int*)
+#    5|   <params>: 
+#    5|     getParameter(0): [Parameter] x
+#    5|         Type = [IntPointerType] int *
+#    5|   getEntryPoint(): [BlockStmt] { ... }
+#    6|     getStmt(0): [ExprStmt] ExprStmt
+#    6|       getExpr(): [DeleteExpr] delete
+#    6|           Type = [VoidType] void
+#    6|           ValueCategory = prvalue
+#    6|         getExprWithReuse(): [VariableAccess] x
+#    6|             Type = [IntPointerType] int *
+#    6|             ValueCategory = prvalue(load)
+#    7|     getStmt(1): [ReturnStmt] return ...
+#    9| [TopLevelFunction] void bar()
+#    9|   <params>: 
+#   11| [TopLevelFunction] void jazz()
+#   11|   <params>: 
+#   11|   getEntryPoint(): [BlockStmt] { ... }
+#   12|     getStmt(0): [ExprStmt] ExprStmt
+#   12|       getExpr(): [FunctionCall] call to bar
+#   12|           Type = [VoidType] void
+#   12|           ValueCategory = prvalue
+#   13|     getStmt(1): [ReturnStmt] return ...

cpp/ql/test/library-tests/ir/no-function-calls/PrintAST.ql

@@ -0,0 +1,11 @@
+/**
+ * @kind graph
+ */
+
+private import cpp
+private import semmle.code.cpp.PrintAST
+private import PrintConfig
+
+private class PrintConfig extends PrintAstConfiguration {
+  override predicate shouldPrintDeclaration(Declaration decl) { shouldDumpDeclaration(decl) }
+}

cpp/ql/test/library-tests/ir/no-function-calls/PrintConfig.qll

@@ -0,0 +1,24 @@
+private import cpp
+
+/**
+ * Holds if the specified location is in standard headers.
+ */
+predicate locationIsInStandardHeaders(Location loc) {
+  loc.getFile().getAbsolutePath().regexpMatch(".*/include/[^/]+")
+}
+
+/**
+ * Holds if the AST or IR for the specified declaration should be printed in the test output.
+ *
+ * This predicate excludes declarations defined in standard headers.
+ */
+predicate shouldDumpDeclaration(Declaration decl) {
+  not locationIsInStandardHeaders(decl.getLocation()) and
+  (
+    decl instanceof Function
+    or
+    decl.(GlobalOrNamespaceVariable).hasInitializer()
+    or
+    decl.(StaticLocalVariable).hasInitializer()
+  )
+}

cpp/ql/test/library-tests/ir/no-function-calls/aliased_ir.expected

@@ -0,0 +1,38 @@
+test.cpp:
+#    5| void foo(int*)
+#    5|   Block 0
+#    5|     v5_1(void)           = EnterFunction                    : 
+#    5|     m5_2(unknown)        = AliasedDefinition                : 
+#    5|     m5_3(unknown)        = InitializeNonLocal               : 
+#    5|     m5_4(unknown)        = Chi                              : total:m5_2, partial:m5_3
+#    5|     r5_5(glval<int *>)   = VariableAddress[x]               : 
+#    5|     m5_6(int *)          = InitializeParameter[x]           : &:r5_5
+#    5|     r5_7(int *)          = Load[x]                          : &:r5_5, m5_6
+#    5|     m5_8(unknown)        = InitializeIndirection[x]         : &:r5_7
+#    5|     m5_9(unknown)        = Chi                              : total:m5_4, partial:m5_8
+#    6|     r6_1(glval<unknown>) = FunctionAddress[operator delete] : 
+#    6|     r6_2(glval<int *>)   = VariableAddress[x]               : 
+#    6|     r6_3(int *)          = Load[x]                          : &:r6_2, m5_6
+#    6|     v6_4(void)           = Call[operator delete]            : func:r6_1, 0:r6_3
+#    6|     m6_5(unknown)        = ^CallSideEffect                  : ~m5_9
+#    6|     m6_6(unknown)        = Chi                              : total:m5_9, partial:m6_5
+#    7|     v7_1(void)           = NoOp                             : 
+#    5|     v5_10(void)          = ReturnIndirection[x]             : &:r5_7, ~m6_6
+#    5|     v5_11(void)          = ReturnVoid                       : 
+#    5|     v5_12(void)          = AliasedUse                       : ~m6_6
+#    5|     v5_13(void)          = ExitFunction                     : 
+
+#   11| void jazz()
+#   11|   Block 0
+#   11|     v11_1(void)           = EnterFunction        : 
+#   11|     m11_2(unknown)        = AliasedDefinition    : 
+#   11|     m11_3(unknown)        = InitializeNonLocal   : 
+#   11|     m11_4(unknown)        = Chi                  : total:m11_2, partial:m11_3
+#   12|     r12_1(glval<unknown>) = FunctionAddress[bar] : 
+#   12|     v12_2(void)           = Call[bar]            : func:r12_1
+#   12|     m12_3(unknown)        = ^CallSideEffect      : ~m11_4
+#   12|     m12_4(unknown)        = Chi                  : total:m11_4, partial:m12_3
+#   13|     v13_1(void)           = NoOp                 : 
+#   11|     v11_5(void)           = ReturnVoid           : 
+#   11|     v11_6(void)           = AliasedUse           : ~m12_4
+#   11|     v11_7(void)           = ExitFunction         : 

cpp/ql/test/library-tests/ir/no-function-calls/aliased_ir.ql

@@ -0,0 +1,11 @@
+/**
+ * @kind graph
+ */
+
+private import cpp
+private import semmle.code.cpp.ir.implementation.aliased_ssa.PrintIR
+private import PrintConfig
+
+private class PrintConfig extends PrintIRConfiguration {
+  override predicate shouldPrintDeclaration(Declaration decl) { shouldDumpDeclaration(decl) }
+}

cpp/ql/test/library-tests/ir/no-function-calls/test.cpp

@@ -0,0 +1,13 @@
+// Test for edge case, where we have a database without any function calls or
+// where none of the function calls have any arguments, but where we do have
+// a delete expression.
+
+void foo(int* x) {
+  delete x;
+}
+
+void bar();
+
+void jazz() {
+  bar();
+}

cpp/ql/test/library-tests/structs/compatible_c/c1_gnu.c

@@ -7,4 +7,4 @@ struct Kiwi {
 struct Lemon {
   unsigned int __attribute__ ((vector_size (16))) lemon_x;
 };
-// semmle-extractor-options: -std=c99 --clang --edg --clang_vector_types --gnu_version 40700
+// semmle-extractor-options: -std=c99 --clang --gnu_version 40700

cpp/ql/test/library-tests/structs/compatible_c/c2_gnu.c

@@ -7,4 +7,4 @@ struct Kiwi {
 struct Lemon {
   signed int __attribute__ ((vector_size (16))) lemon_x;
 };
-// semmle-extractor-options: -std=c99 --clang --edg --clang_vector_types --gnu_version 40700
+// semmle-extractor-options: -std=c99 --clang --gnu_version 40700