1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "local_code_sign_stub.h"
17
18 #include "cs_hisysevent.h"
19 #include "cs_hitrace.h"
20 #include "errcode.h"
21 #include "ipc_skeleton.h"
22 #include "log.h"
23 #include "message_parcel.h"
24 #include "permission_utils.h"
25
26 namespace OHOS {
27 namespace Security {
28 namespace CodeSign {
29 using namespace std;
30
LocalCodeSignStub()31 LocalCodeSignStub::LocalCodeSignStub()
32 {
33 }
34
~LocalCodeSignStub()35 LocalCodeSignStub::~LocalCodeSignStub()
36 {
37 }
38
OnRemoteRequest(uint32_t code,MessageParcel & data,MessageParcel & reply,MessageOption & option)39 int32_t LocalCodeSignStub::OnRemoteRequest(uint32_t code,
40 MessageParcel &data, MessageParcel &reply, MessageOption &option)
41 {
42 DelayUnloadTask();
43 std::u16string descriptor = LocalCodeSignStub::GetDescriptor();
44 std::u16string token = data.ReadInterfaceToken();
45 if (token != descriptor) {
46 return CS_ERR_IPC_MSG_INVALID;
47 }
48 switch (code) {
49 case static_cast<uint32_t>(LocalCodeSignInterfaceCode::INIT_LOCAL_CERTIFICATE):
50 return InitLocalCertificateInner(data, reply);
51 case static_cast<uint32_t>(LocalCodeSignInterfaceCode::SIGN_LOCAL_CODE):
52 return SignLocalCodeInner(data, reply);
53 default:
54 return IPCObjectStub::OnRemoteRequest(code, data, reply, option);
55 }
56 }
57
InitLocalCertificateInner(MessageParcel & data,MessageParcel & reply)58 int32_t LocalCodeSignStub::InitLocalCertificateInner(MessageParcel &data, MessageParcel &reply)
59 {
60 if (!PermissionUtils::IsValidCallerOfCert()) {
61 reply.WriteInt32(CS_ERR_NO_PERMISSION);
62 return CS_ERR_NO_PERMISSION;
63 }
64 ByteBuffer cert;
65 int32_t result = InitLocalCertificate(cert);
66 if (!reply.WriteInt32(result)) {
67 return CS_ERR_IPC_WRITE_DATA;
68 }
69 if (result != CS_SUCCESS) {
70 return result;
71 }
72 if (!reply.WriteUint32(cert.GetSize())) {
73 return CS_ERR_IPC_WRITE_DATA;
74 }
75 if (!reply.WriteBuffer(cert.GetBuffer(), cert.GetSize())) {
76 return CS_ERR_IPC_WRITE_DATA;
77 }
78 return CS_SUCCESS;
79 }
80
SignLocalCodeInner(MessageParcel & data,MessageParcel & reply)81 int32_t LocalCodeSignStub::SignLocalCodeInner(MessageParcel &data, MessageParcel &reply)
82 {
83 if (!PermissionUtils::IsValidCallerOfLocalCodeSign()) {
84 (void)reply.WriteInt32(CS_ERR_NO_PERMISSION);
85 return CS_ERR_NO_PERMISSION;
86 }
87 std::string filePath = data.ReadString();
88 StartTrace(HITRACE_TAG_ACCESS_CONTROL, CODE_SIGN_ENABLE_START);
89 ByteBuffer signature;
90 int32_t result = SignLocalCode(filePath, signature);
91 FinishTrace(HITRACE_TAG_ACCESS_CONTROL);
92 if (!reply.WriteInt32(result)) {
93 return CS_ERR_IPC_WRITE_DATA;
94 }
95 if (result != CS_SUCCESS) {
96 return result;
97 }
98 if (!reply.WriteUint32(signature.GetSize())) {
99 return CS_ERR_IPC_WRITE_DATA;
100 }
101 if (!reply.WriteBuffer(signature.GetBuffer(), signature.GetSize())) {
102 return CS_ERR_IPC_WRITE_DATA;
103 }
104 return CS_SUCCESS;
105 }
106 }
107 }
108 }