1 /*
2 * Copyright (C) 2016 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 <android-base/logging.h>
18 #include <errno.h>
19 #include <getopt.h>
20 #include <stdbool.h>
21 #include <stdint.h>
22 #include <stdlib.h>
23 #include <string.h>
24
25 #include <cutils/android_filesystem_config.h>
26
27 #include "DPUHandler.h"
28
show_usage_and_exit(int code)29 static void show_usage_and_exit(int code) {
30 LOG(ERROR) << "usage: securedpud -d <trusty_dev>";
31 exit(code);
32 }
33
parse_device_name(int argc,char * argv[],std::string & device_name)34 static void parse_device_name(int argc, char* argv[], std::string& device_name) {
35 static const char* _sopts = "h:d:";
36 static const struct option _lopts[] = {{"help", no_argument, NULL, 'h'},
37 {"trusty_dev", required_argument, NULL, 'd'},
38 {0, 0, 0, 0}};
39 int opt;
40 int oidx = 0;
41
42 while ((opt = getopt_long(argc, argv, _sopts, _lopts, &oidx)) != -1) {
43 switch (opt) {
44 case 'd':
45 device_name = optarg;
46 break;
47
48 default:
49 LOG(ERROR) << "unrecognized option: " << opt;
50 show_usage_and_exit(EXIT_FAILURE);
51 }
52 }
53
54 if (device_name.empty()) {
55 LOG(ERROR) << "missing required argument(s)";
56 show_usage_and_exit(EXIT_FAILURE);
57 }
58
59 LOG(INFO) << "starting securedpud";
60 LOG(INFO) << "trusty dev: " << device_name;
61 }
62
main(int argc,char * argv[])63 int main(int argc, char* argv[])
64 {
65 std::string device_name;
66 /* parse arguments */
67 parse_device_name(argc, argv, device_name);
68
69 android::trusty::secure_dpu::DPUHandler dpu_handler;
70 auto rc = dpu_handler.Init(device_name);
71 if (!rc.ok()) {
72 LOG(ERROR) << rc.error();
73 return EXIT_FAILURE;
74 }
75
76 /* main loop */
77 while (1) {
78 auto result = dpu_handler.Handle();
79 if (!result.ok()) {
80 LOG(ERROR) << result.error();
81 }
82 }
83 LOG(ERROR) << "exiting securedpud loop";
84
85 return EXIT_FAILURE;
86 }
87