2 * Sample code to test CAP protocol
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57 #include <sys/ioctl.h>
61 #include "../../greybus_authentication.h"
63 struct cap_ioc_get_endpoint_uid uid;
64 struct cap_ioc_get_ims_certificate cert = {
65 .certificate_class = 0,
69 struct cap_ioc_authenticate authenticate = {
74 int main(int argc, char *argv[])
76 unsigned int timeout = 10000;
80 /* Make sure arguments are correct */
82 printf("\nUsage: ./firmware <Path of the gb-cap-X dev>\n");
88 printf("Opening %s authentication device\n", capdev);
90 fd = open(capdev, O_RDWR);
92 printf("Failed to open: %s\n", capdev);
99 ret = ioctl(fd, CAP_IOC_GET_ENDPOINT_UID, &uid);
101 printf("Failed to get UID: %s (%d)\n", capdev, ret);
106 printf("UID received: 0x%llx\n", *(unsigned long long int *)(uid.uid));
108 /* Get certificate */
109 printf("Get IMS certificate\n");
111 ret = ioctl(fd, CAP_IOC_GET_IMS_CERTIFICATE, &cert);
113 printf("Failed to get IMS certificate: %s (%d)\n", capdev, ret);
118 printf("IMS Certificate size: %d\n", cert.cert_size);
121 printf("Authenticate module\n");
123 memcpy(authenticate.uid, uid.uid, 8);
125 ret = ioctl(fd, CAP_IOC_AUTHENTICATE, &authenticate);
127 printf("Failed to authenticate module: %s (%d)\n", capdev, ret);
132 printf("Authenticated, result (%02x), sig-size (%02x)\n",
133 authenticate.result_code, authenticate.signature_size);