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
|
// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
/*
* Sample code to test CAP protocol
*
* Copyright(c) 2016 Google Inc. All rights reserved.
* Copyright(c) 2016 Linaro Ltd. All rights reserved.
*/
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "../../greybus_authentication.h"
struct cap_ioc_get_endpoint_uid uid;
struct cap_ioc_get_ims_certificate cert = {
.certificate_class = 0,
.certificate_id = 0,
};
struct cap_ioc_authenticate authenticate = {
.auth_type = 0,
.challenge = {0},
};
int main(int argc, char *argv[])
{
unsigned int timeout = 10000;
char *capdev;
int fd, ret;
/* Make sure arguments are correct */
if (argc != 2) {
printf("\nUsage: ./firmware <Path of the gb-cap-X dev>\n");
return 0;
}
capdev = argv[1];
printf("Opening %s authentication device\n", capdev);
fd = open(capdev, O_RDWR);
if (fd < 0) {
printf("Failed to open: %s\n", capdev);
return -1;
}
/* Get UID */
printf("Get UID\n");
ret = ioctl(fd, CAP_IOC_GET_ENDPOINT_UID, &uid);
if (ret < 0) {
printf("Failed to get UID: %s (%d)\n", capdev, ret);
ret = -1;
goto close_fd;
}
printf("UID received: 0x%llx\n", *(unsigned long long int *)(uid.uid));
/* Get certificate */
printf("Get IMS certificate\n");
ret = ioctl(fd, CAP_IOC_GET_IMS_CERTIFICATE, &cert);
if (ret < 0) {
printf("Failed to get IMS certificate: %s (%d)\n", capdev, ret);
ret = -1;
goto close_fd;
}
printf("IMS Certificate size: %d\n", cert.cert_size);
/* Authenticate */
printf("Authenticate module\n");
memcpy(authenticate.uid, uid.uid, 8);
ret = ioctl(fd, CAP_IOC_AUTHENTICATE, &authenticate);
if (ret < 0) {
printf("Failed to authenticate module: %s (%d)\n", capdev, ret);
ret = -1;
goto close_fd;
}
printf("Authenticated, result (%02x), sig-size (%02x)\n",
authenticate.result_code, authenticate.signature_size);
close_fd:
close(fd);
return ret;
}
|
