1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
3 * Sample code to test CAP protocol
5 * This file is provided under a dual BSD/GPLv2 license. When using or
6 * redistributing this file, you may do so under either license.
10 * Copyright(c) 2016 Google Inc. All rights reserved.
11 * Copyright(c) 2016 Linaro Ltd. All rights reserved.
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of version 2 of the GNU General Public License as
15 * published by the Free Software Foundation.
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License version 2 for more details.
24 * Copyright(c) 2016 Google Inc. All rights reserved.
25 * Copyright(c) 2016 Linaro Ltd. All rights reserved.
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28 * modification, are permitted provided that the following conditions
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58 #include <sys/ioctl.h>
62 #include "../../greybus_authentication.h"
64 struct cap_ioc_get_endpoint_uid uid;
65 struct cap_ioc_get_ims_certificate cert = {
66 .certificate_class = 0,
70 struct cap_ioc_authenticate authenticate = {
75 int main(int argc, char *argv[])
77 unsigned int timeout = 10000;
81 /* Make sure arguments are correct */
83 printf("\nUsage: ./firmware <Path of the gb-cap-X dev>\n");
89 printf("Opening %s authentication device\n", capdev);
91 fd = open(capdev, O_RDWR);
93 printf("Failed to open: %s\n", capdev);
100 ret = ioctl(fd, CAP_IOC_GET_ENDPOINT_UID, &uid);
102 printf("Failed to get UID: %s (%d)\n", capdev, ret);
107 printf("UID received: 0x%llx\n", *(unsigned long long int *)(uid.uid));
109 /* Get certificate */
110 printf("Get IMS certificate\n");
112 ret = ioctl(fd, CAP_IOC_GET_IMS_CERTIFICATE, &cert);
114 printf("Failed to get IMS certificate: %s (%d)\n", capdev, ret);
119 printf("IMS Certificate size: %d\n", cert.cert_size);
122 printf("Authenticate module\n");
124 memcpy(authenticate.uid, uid.uid, 8);
126 ret = ioctl(fd, CAP_IOC_AUTHENTICATE, &authenticate);
128 printf("Failed to authenticate module: %s (%d)\n", capdev, ret);
133 printf("Authenticated, result (%02x), sig-size (%02x)\n",
134 authenticate.result_code, authenticate.signature_size);