1 files changed, 83 insertions, 0 deletions
diff --git a/cmds/incidentd/src/Privacy.cpp b/cmds/incidentd/src/Privacy.cpp
new file mode 100644
index 000000000000..3f0e331c8b55
--- /dev/null
+++ b/cmds/incidentd/src/Privacy.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Privacy.h"
+
+#include <android/os/IncidentReportArgs.h>
+#include <stdlib.h>
+
+uint64_t encode_field_id(const Privacy* p) { return (uint64_t)p->type << 32 | p->field_id; }
+
+const Privacy* lookup(const Privacy* p, uint32_t fieldId)
+{
+    if (p->children == NULL) return NULL;
+    for (int i=0; p->children[i] != NULL; i++) { // NULL-terminated.
+        if (p->children[i]->field_id == fieldId) return p->children[i];
+        // Incident section gen tool guarantees field ids in ascending order.
+        if (p->children[i]->field_id > fieldId) return NULL;
+    }
+    return NULL;
+}
+
+static bool allowDest(const uint8_t dest, const uint8_t policy)
+{
+    switch (policy) {
+    case android::os::DEST_LOCAL:
+        return dest == android::os::DEST_LOCAL;
+    case android::os::DEST_EXPLICIT:
+    case DEST_UNSET:
+        return dest == android::os::DEST_LOCAL ||
+            dest == android::os::DEST_EXPLICIT ||
+            dest == DEST_UNSET;
+    case android::os::DEST_AUTOMATIC:
+        return true;
+    default:
+        return false;
+    }
+}
+
+bool
+PrivacySpec::operator<(const PrivacySpec& other) const
+{
+  return dest < other.dest;
+}
+
+bool
+PrivacySpec::CheckPremission(const Privacy* privacy, const uint8_t defaultDest) const
+{
+    uint8_t policy = privacy != NULL ? privacy->dest : defaultDest;
+    return allowDest(dest, policy);
+}
+
+bool
+PrivacySpec::RequireAll() const { return dest == android::os::DEST_LOCAL; }
+
+PrivacySpec PrivacySpec::new_spec(int dest)
+{
+    switch (dest) {
+        case android::os::DEST_AUTOMATIC:
+        case android::os::DEST_EXPLICIT:
+        case android::os::DEST_LOCAL:
+            return PrivacySpec(dest);
+        default:
+            return PrivacySpec();
+    }
+}
+
+PrivacySpec PrivacySpec::get_default_dropbox_spec()
+{
+    return PrivacySpec(android::os::DEST_AUTOMATIC);
+}