1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "android.hardware.gatekeeper@1.0-service"
#include <dlfcn.h>
#include <log/log.h>
#include "Gatekeeper.h"
namespace android {
namespace hardware {
namespace gatekeeper {
namespace V1_0 {
namespace implementation {
Gatekeeper::Gatekeeper()
{
int ret = hw_get_module_by_class(GATEKEEPER_HARDWARE_MODULE_ID, NULL, &module);
device = NULL;
if (!ret) {
ret = gatekeeper_open(module, &device);
}
if (ret < 0) {
LOG_ALWAYS_FATAL_IF(ret < 0, "Unable to open GateKeeper HAL");
}
}
Gatekeeper::~Gatekeeper()
{
if (device != nullptr) {
int ret = gatekeeper_close(device);
if (ret < 0) {
ALOGE("Unable to close GateKeeper HAL");
}
}
dlclose(module->dso);
}
// Methods from ::android::hardware::gatekeeper::V1_0::IGatekeeper follow.
Return<void> Gatekeeper::enroll(uint32_t uid,
const hidl_vec<uint8_t>& currentPasswordHandle,
const hidl_vec<uint8_t>& currentPassword,
const hidl_vec<uint8_t>& desiredPassword,
enroll_cb cb)
{
GatekeeperResponse rsp;
uint8_t *enrolled_password_handle = nullptr;
uint32_t enrolled_password_handle_length = 0;
int ret = device->enroll(device, uid,
currentPasswordHandle.data(), currentPasswordHandle.size(),
currentPassword.data(), currentPassword.size(),
desiredPassword.data(), desiredPassword.size(),
&enrolled_password_handle, &enrolled_password_handle_length);
if (!ret) {
rsp.data.setToExternal(enrolled_password_handle,
enrolled_password_handle_length,
true);
rsp.code = GatekeeperStatusCode::STATUS_OK;
} else if (ret > 0) {
rsp.timeout = ret;
rsp.code = GatekeeperStatusCode::ERROR_RETRY_TIMEOUT;
} else {
rsp.code = GatekeeperStatusCode::ERROR_GENERAL_FAILURE;
}
cb(rsp);
return Void();
}
Return<void> Gatekeeper::verify(uint32_t uid,
uint64_t challenge,
const hidl_vec<uint8_t>& enrolledPasswordHandle,
const hidl_vec<uint8_t>& providedPassword,
verify_cb cb)
{
GatekeeperResponse rsp;
uint8_t *auth_token = nullptr;
uint32_t auth_token_length = 0;
bool request_reenroll = false;
int ret = device->verify(device, uid, challenge,
enrolledPasswordHandle.data(), enrolledPasswordHandle.size(),
providedPassword.data(), providedPassword.size(),
&auth_token, &auth_token_length,
&request_reenroll);
if (!ret) {
rsp.data.setToExternal(auth_token, auth_token_length, true);
if (request_reenroll) {
rsp.code = GatekeeperStatusCode::STATUS_REENROLL;
} else {
rsp.code = GatekeeperStatusCode::STATUS_OK;
}
} else if (ret > 0) {
rsp.timeout = ret;
rsp.code = GatekeeperStatusCode::ERROR_RETRY_TIMEOUT;
} else {
rsp.code = GatekeeperStatusCode::ERROR_GENERAL_FAILURE;
}
cb(rsp);
return Void();
}
Return<void> Gatekeeper::deleteUser(uint32_t uid, deleteUser_cb cb) {
GatekeeperResponse rsp;
if (device->delete_user != nullptr) {
int ret = device->delete_user(device, uid);
if (!ret) {
rsp.code = GatekeeperStatusCode::STATUS_OK;
} else if (ret > 0) {
rsp.timeout = ret;
rsp.code = GatekeeperStatusCode::ERROR_RETRY_TIMEOUT;
} else {
rsp.code = GatekeeperStatusCode::ERROR_GENERAL_FAILURE;
}
} else {
rsp.code = GatekeeperStatusCode::ERROR_NOT_IMPLEMENTED;
}
cb(rsp);
return Void();
}
Return<void> Gatekeeper::deleteAllUsers(deleteAllUsers_cb cb) {
GatekeeperResponse rsp;
if (device->delete_all_users != nullptr) {
int ret = device->delete_all_users(device);
if (!ret) {
rsp.code = GatekeeperStatusCode::STATUS_OK;
} else if (ret > 0) {
rsp.timeout = ret;
rsp.code = GatekeeperStatusCode::ERROR_RETRY_TIMEOUT;
} else {
rsp.code = GatekeeperStatusCode::ERROR_GENERAL_FAILURE;
}
} else {
rsp.code = GatekeeperStatusCode::ERROR_NOT_IMPLEMENTED;
}
cb(rsp);
return Void();
}
IGatekeeper* HIDL_FETCH_IGatekeeper(const char* /* name */) {
return new Gatekeeper();
}
} // namespace implementation
} // namespace V1_0
} // namespace gatekeeper
} // namespace hardware
} // namespace android
|
