1 /*
2 * Copyright (C) 2024 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 #include "src/trace_redaction/modify.h"
18 #include "src/trace_redaction/proto_util.h"
19
20 namespace perfetto::trace_redaction {
21
22 PidCommModifier::~PidCommModifier() = default;
23
24 FtraceEventModifier::~FtraceEventModifier() = default;
25
Modify(const Context & context,uint64_t ts,int32_t,int32_t * pid,std::string * comm) const26 void ClearComms::Modify(const Context& context,
27 uint64_t ts,
28 int32_t,
29 int32_t* pid,
30 std::string* comm) const {
31 PERFETTO_DCHECK(context.timeline);
32 PERFETTO_DCHECK(context.package_uid.has_value());
33 PERFETTO_DCHECK(pid);
34 PERFETTO_DCHECK(comm);
35
36 if (!context.timeline->PidConnectsToUid(ts, *pid, *context.package_uid)) {
37 comm->clear();
38 }
39 }
40
Modify(const Context &,uint64_t,int32_t,int32_t *,std::string *) const41 void DoNothing::Modify(const Context&,
42 uint64_t,
43 int32_t,
44 int32_t*,
45 std::string*) const {}
46
47 // Because FtraceEventModifier is responsible for modifying and writing
48 // (compared to PidCommModifier), it needs to pass the value through to the
49 // message.
Modify(const Context &,const protos::pbzero::FtraceEventBundle::Decoder &,protozero::Field event,protos::pbzero::FtraceEventBundle * parent_message) const50 void DoNothing::Modify(
51 const Context&,
52 const protos::pbzero::FtraceEventBundle::Decoder&,
53 protozero::Field event,
54 protos::pbzero::FtraceEventBundle* parent_message) const {
55 proto_util::AppendField(event, parent_message);
56 }
57
58 } // namespace perfetto::trace_redaction
59