1 /*
2 * Copyright 2022 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 "metrics/utils.h"
18
19 #include <base/files/file_util.h>
20 #include <base/strings/string_util.h>
21
22 namespace bluetooth {
23 namespace metrics {
24
25 namespace {
26 // The path to the kernel's boot_id.
27 const char kBootIdPath[] = "/proc/sys/kernel/random/boot_id";
28 } // namespace
29
GetBootId(std::string * boot_id)30 bool GetBootId(std::string* boot_id) {
31 if (!base::ReadFileToString(base::FilePath(kBootIdPath), boot_id)) {
32 return false;
33 }
34 base::TrimWhitespaceASCII(*boot_id, base::TRIM_TRAILING, boot_id);
35 return true;
36 }
37
GetArgumentTypeFromList(std::vector<std::pair<os::ArgumentType,int>> & argument_list,os::ArgumentType argumentType)38 int GetArgumentTypeFromList(
39 std::vector<std::pair<os::ArgumentType, int>>& argument_list, os::ArgumentType argumentType) {
40 for (std::pair<os::ArgumentType, int> argumentPair : argument_list) {
41 if (argumentPair.first == argumentType) {
42 return argumentPair.second;
43 }
44 }
45 return -1;
46 }
47
GetLeConnectionTypeFromCID(int fixed_cid)48 os::LeConnectionType GetLeConnectionTypeFromCID(int fixed_cid) {
49 switch(fixed_cid) {
50 case 3: {
51 return os::LeConnectionType::CONNECTION_TYPE_L2CAP_FIXED_CHNL_AMP;
52 }
53 case 4: {
54 return os::LeConnectionType::CONNECTION_TYPE_L2CAP_FIXED_CHNL_ATT;
55 }
56 case 5: {
57 return os::LeConnectionType::CONNECTION_TYPE_L2CAP_FIXED_CHNL_LE_SIGNALLING;
58 }
59 case 6: {
60 return os::LeConnectionType::CONNECTION_TYPE_L2CAP_FIXED_CHNL_SMP;
61 }
62 case 7: {
63 return os::LeConnectionType::CONNECTION_TYPE_L2CAP_FIXED_CHNL_SMP_BR_EDR;
64 }
65 default: {
66 return os::LeConnectionType::CONNECTION_TYPE_UNSPECIFIED;
67 }
68 }
69 }
70
71
72
73 } // namespace metrics
74 } // namespace bluetooth
75