1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SRC_TRACING_CORE_PACKET_STREAM_VALIDATOR_H_ 18 #define SRC_TRACING_CORE_PACKET_STREAM_VALIDATOR_H_ 19 20 #include "perfetto/ext/tracing/core/slice.h" 21 22 namespace perfetto { 23 24 // Checks that the stream of trace packets sent by the producer is well formed. 25 // This includes: 26 // 27 // - Checking that the packets are not truncated. 28 // - There are no dangling bytes left over in the packets. 29 // - Any trusted fields (e.g., uid) are not set. 30 // 31 // Note that we only validate top-level fields in the trace proto; sub-messages 32 // are simply skipped. 33 class PacketStreamValidator { 34 public: 35 PacketStreamValidator() = delete; 36 37 static bool Validate(const Slices&); 38 }; 39 40 } // namespace perfetto 41 42 #endif // SRC_TRACING_CORE_PACKET_STREAM_VALIDATOR_H_ 43