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1 /*
2  * Copyright (C) 2023 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_TRACE_PROCESSOR_IMPORTERS_PROTO_NETWORK_TRACE_MODULE_H_
18 #define SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_NETWORK_TRACE_MODULE_H_
19 
20 #include <cstdint>
21 
22 #include "perfetto/protozero/scattered_heap_buffer.h"
23 #include "protos/perfetto/trace/android/network_trace.pbzero.h"
24 #include "protos/perfetto/trace/trace_packet.pbzero.h"
25 #include "src/trace_processor/importers/common/args_tracker.h"
26 #include "src/trace_processor/importers/common/parser_types.h"
27 #include "src/trace_processor/importers/proto/proto_importer_module.h"
28 #include "src/trace_processor/storage/trace_storage.h"
29 #include "src/trace_processor/types/trace_processor_context.h"
30 
31 namespace perfetto {
32 namespace trace_processor {
33 
34 class NetworkTraceModule : public ProtoImporterModule {
35  public:
36   explicit NetworkTraceModule(TraceProcessorContext* context);
37   ~NetworkTraceModule() override = default;
38 
39   // Tokenize and de-intern NetworkPacketBundles so that bundles of multiple
40   // packets are sorted appropriately. This splits bundles with per-packet
41   // details (packet_timestamps and packet_lengths) into one NetworkTraceEvent
42   // per packet. Bundles with aggregates (i.e. total_packets) are forwarded
43   // after de-interning the packet context.
44   ModuleResult TokenizePacket(
45       const protos::pbzero::TracePacket::Decoder& decoder,
46       TraceBlobView* packet,
47       int64_t ts,
48       PacketSequenceState* state,
49       uint32_t field_id) override;
50 
51   void ParseTracePacketData(const protos::pbzero::TracePacket::Decoder& decoder,
52                             int64_t ts,
53                             const TracePacketData&,
54                             uint32_t field_id) override;
55 
56  private:
57   void ParseGenericEvent(
58       int64_t ts,
59       int64_t dur,
60       protos::pbzero::NetworkPacketEvent::Decoder& evt,
61       std::function<void(ArgsTracker::BoundInserter*)> extra_args);
62 
63   void ParseNetworkPacketEvent(int64_t ts, protozero::ConstBytes blob);
64   void ParseNetworkPacketBundle(int64_t ts, protozero::ConstBytes blob);
65 
66   // Helper to simplify pushing a TracePacket to the sorter. The caller fills in
67   // the packet buffer and uses this to push for sorting and reset the buffer.
68   void PushPacketBufferForSort(int64_t timestamp, PacketSequenceState* state);
69 
70   TraceProcessorContext* context_;
71   protozero::HeapBuffered<protos::pbzero::TracePacket> packet_buffer_;
72 
73   const StringId net_arg_length_;
74   const StringId net_arg_ip_proto_;
75   const StringId net_arg_tcp_flags_;
76   const StringId net_arg_tag_;
77   const StringId net_arg_uid_;
78   const StringId net_arg_local_port_;
79   const StringId net_arg_remote_port_;
80   const StringId net_ipproto_tcp_;
81   const StringId net_ipproto_udp_;
82   const StringId packet_count_;
83 };
84 
85 }  // namespace trace_processor
86 }  // namespace perfetto
87 
88 #endif  // SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_NETWORK_TRACE_MODULE_H_
89