1// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) 2/* 3 * Greybus Component Authentication User Header 4 * 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. 7 * 8 * GPL LICENSE SUMMARY 9 * 10 * Copyright(c) 2016 Google Inc. All rights reserved. 11 * Copyright(c) 2016 Linaro Ltd. All rights reserved. 12 * 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. 16 * 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. 21 * 22 * BSD LICENSE 23 * 24 * Copyright(c) 2016 Google Inc. All rights reserved. 25 * Copyright(c) 2016 Linaro Ltd. All rights reserved. 26 * 27 * Redistribution and use in source and binary forms, with or without 28 * modification, are permitted provided that the following conditions 29 * are met: 30 * 31 * * Redistributions of source code must retain the above copyright 32 * notice, this list of conditions and the following disclaimer. 33 * * Redistributions in binary form must reproduce the above copyright 34 * notice, this list of conditions and the following disclaimer in 35 * the documentation and/or other materials provided with the 36 * distribution. 37 * * Neither the name of Google Inc. or Linaro Ltd. nor the names of 38 * its contributors may be used to endorse or promote products 39 * derived from this software without specific prior written 40 * permission. 41 * 42 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 43 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 44 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 45 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR 46 * LINARO LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 47 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 48 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 49 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 50 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 51 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 52 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 53 */ 54 55#ifndef __GREYBUS_AUTHENTICATION_USER_H 56#define __GREYBUS_AUTHENTICATION_USER_H 57 58#include <linux/ioctl.h> 59#include <linux/types.h> 60 61#define CAP_CERTIFICATE_MAX_SIZE 1600 62#define CAP_SIGNATURE_MAX_SIZE 320 63 64/* Certificate class types */ 65#define CAP_CERT_IMS_EAPC 0x00000001 66#define CAP_CERT_IMS_EASC 0x00000002 67#define CAP_CERT_IMS_EARC 0x00000003 68#define CAP_CERT_IMS_IAPC 0x00000004 69#define CAP_CERT_IMS_IASC 0x00000005 70#define CAP_CERT_IMS_IARC 0x00000006 71 72/* IMS Certificate response result codes */ 73#define CAP_IMS_RESULT_CERT_FOUND 0x00 74#define CAP_IMS_RESULT_CERT_CLASS_INVAL 0x01 75#define CAP_IMS_RESULT_CERT_CORRUPT 0x02 76#define CAP_IMS_RESULT_CERT_NOT_FOUND 0x03 77 78/* Authentication types */ 79#define CAP_AUTH_IMS_PRI 0x00000001 80#define CAP_AUTH_IMS_SEC 0x00000002 81#define CAP_AUTH_IMS_RSA 0x00000003 82 83/* Authenticate response result codes */ 84#define CAP_AUTH_RESULT_CR_SUCCESS 0x00 85#define CAP_AUTH_RESULT_CR_BAD_TYPE 0x01 86#define CAP_AUTH_RESULT_CR_WRONG_EP 0x02 87#define CAP_AUTH_RESULT_CR_NO_KEY 0x03 88#define CAP_AUTH_RESULT_CR_SIG_FAIL 0x04 89 90 91/* IOCTL support */ 92struct cap_ioc_get_endpoint_uid { 93 __u8 uid[8]; 94} __attribute__ ((__packed__)); 95 96struct cap_ioc_get_ims_certificate { 97 __u32 certificate_class; 98 __u32 certificate_id; 99 100 __u8 result_code; 101 __u32 cert_size; 102 __u8 certificate[CAP_CERTIFICATE_MAX_SIZE]; 103} __attribute__ ((__packed__)); 104 105struct cap_ioc_authenticate { 106 __u32 auth_type; 107 __u8 uid[8]; 108 __u8 challenge[32]; 109 110 __u8 result_code; 111 __u8 response[64]; 112 __u32 signature_size; 113 __u8 signature[CAP_SIGNATURE_MAX_SIZE]; 114} __attribute__ ((__packed__)); 115 116#define CAP_IOCTL_BASE 'C' 117#define CAP_IOC_GET_ENDPOINT_UID _IOR(CAP_IOCTL_BASE, 0, struct cap_ioc_get_endpoint_uid) 118#define CAP_IOC_GET_IMS_CERTIFICATE _IOWR(CAP_IOCTL_BASE, 1, struct cap_ioc_get_ims_certificate) 119#define CAP_IOC_AUTHENTICATE _IOWR(CAP_IOCTL_BASE, 2, struct cap_ioc_authenticate) 120 121#endif /* __GREYBUS_AUTHENTICATION_USER_H */ 122