VAULT-7698 Fix ignored parameter warnings for endpoint arbitrary data options (#16794)

* VAULT-7698 Fix warnings for endpoint arbitrary data options

* VAULT-7698 Add changelog

changelog/16794.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+api: Fixed erroneous warnings of unrecognized parameters when unwrapping data.
+```

http/sys_wrapping_test.go

@@ -146,6 +146,9 @@ func TestHTTP_Wrapping(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	if secret.Warnings != nil {
+		t.Fatalf("Warnings found: %v", secret.Warnings)
+	}
 	if secret == nil || secret.Data == nil {
 		t.Fatal("secret or secret data is nil")
 	}
@@ -222,6 +225,9 @@ func TestHTTP_Wrapping(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	if secret.Warnings != nil {
+		t.Fatalf("Warnings found: %v", secret.Warnings)
+	}
 	ret4 := secret
 	// Should be expired and fail
 	_, err = client.Logical().Unwrap(wrapInfo.Token)
@@ -286,10 +292,16 @@ func TestHTTP_Wrapping(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	if secret.Warnings != nil {
+		t.Fatalf("Warnings found: %v", secret.Warnings)
+	}
 	secret, err = client.Logical().Unwrap(secret.WrapInfo.Token)
 	if err != nil {
 		t.Fatal(err)
 	}
+	if secret.Warnings != nil {
+		t.Fatalf("Warnings found: %v", secret.Warnings)
+	}
 	if !reflect.DeepEqual(data, secret.Data) {
 		t.Fatalf("custom wrap did not match expected: %#v", secret.Data)
 	}
@@ -320,6 +332,9 @@ func TestHTTP_Wrapping(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	if secret.Warnings != nil {
+		t.Fatalf("Warnings found: %v", secret.Warnings)
+	}
 
 	// Check for correct Creation path after rewrap
 	if wrapInfo.CreationPath != "secret/foo" {

sdk/framework/backend.go

@@ -221,7 +221,7 @@ func (b *Backend) HandleRequest(ctx context.Context, req *logical.Request) (*log
 	var ignored []string
 	for k, v := range req.Data {
 		raw[k] = v
-		if path.Fields[k] == nil {
+		if !path.TakesArbitraryInput && path.Fields[k] == nil {
 			ignored = append(ignored, k)
 		}
 	}

sdk/framework/path.go

@@ -116,6 +116,12 @@ type Path struct {
 	// DisplayAttrs provides hints for UI and documentation generators. They
 	// will be included in OpenAPI output if set.
 	DisplayAttrs *DisplayAttributes
+
+	// TakesArbitraryInput is used for endpoints that take arbitrary input, instead
+	// of or as well as their Fields. This is taken into account when printing
+	// warnings about ignored fields. If this is set, we will not warn when data is
+	// provided that is not part of the Fields declaration.
+	TakesArbitraryInput bool
 }
 
 // OperationHandler defines and describes a specific operation handler.

vault/logical_system_paths.go

@@ -1795,6 +1795,8 @@ func (b *SystemBackend) wrappingPaths() []*framework.Path {
 
 			HelpSynopsis:    strings.TrimSpace(sysHelp["wrap"][0]),
 			HelpDescription: strings.TrimSpace(sysHelp["wrap"][1]),
+
+			TakesArbitraryInput: true,
 		},
 
 		{