1 /* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ 2 /* 3 * Greybus Component Authentication User Header 4 * 5 * Copyright(c) 2016 Google Inc. All rights reserved. 6 * Copyright(c) 2016 Linaro Ltd. All rights reserved. 7 */ 8 9 #ifndef __GREYBUS_AUTHENTICATION_USER_H 10 #define __GREYBUS_AUTHENTICATION_USER_H 11 12 #include <linux/ioctl.h> 13 #include <linux/types.h> 14 15 #define CAP_CERTIFICATE_MAX_SIZE 1600 16 #define CAP_SIGNATURE_MAX_SIZE 320 17 18 /* Certificate class types */ 19 #define CAP_CERT_IMS_EAPC 0x00000001 20 #define CAP_CERT_IMS_EASC 0x00000002 21 #define CAP_CERT_IMS_EARC 0x00000003 22 #define CAP_CERT_IMS_IAPC 0x00000004 23 #define CAP_CERT_IMS_IASC 0x00000005 24 #define CAP_CERT_IMS_IARC 0x00000006 25 26 /* IMS Certificate response result codes */ 27 #define CAP_IMS_RESULT_CERT_FOUND 0x00 28 #define CAP_IMS_RESULT_CERT_CLASS_INVAL 0x01 29 #define CAP_IMS_RESULT_CERT_CORRUPT 0x02 30 #define CAP_IMS_RESULT_CERT_NOT_FOUND 0x03 31 32 /* Authentication types */ 33 #define CAP_AUTH_IMS_PRI 0x00000001 34 #define CAP_AUTH_IMS_SEC 0x00000002 35 #define CAP_AUTH_IMS_RSA 0x00000003 36 37 /* Authenticate response result codes */ 38 #define CAP_AUTH_RESULT_CR_SUCCESS 0x00 39 #define CAP_AUTH_RESULT_CR_BAD_TYPE 0x01 40 #define CAP_AUTH_RESULT_CR_WRONG_EP 0x02 41 #define CAP_AUTH_RESULT_CR_NO_KEY 0x03 42 #define CAP_AUTH_RESULT_CR_SIG_FAIL 0x04 43 44 /* IOCTL support */ 45 struct cap_ioc_get_endpoint_uid { 46 __u8 uid[8]; 47 } __packed; 48 49 struct cap_ioc_get_ims_certificate { 50 __u32 certificate_class; 51 __u32 certificate_id; 52 53 __u8 result_code; 54 __u32 cert_size; 55 __u8 certificate[CAP_CERTIFICATE_MAX_SIZE]; 56 } __packed; 57 58 struct cap_ioc_authenticate { 59 __u32 auth_type; 60 __u8 uid[8]; 61 __u8 challenge[32]; 62 63 __u8 result_code; 64 __u8 response[64]; 65 __u32 signature_size; 66 __u8 signature[CAP_SIGNATURE_MAX_SIZE]; 67 } __packed; 68 69 #define CAP_IOCTL_BASE 'C' 70 #define CAP_IOC_GET_ENDPOINT_UID _IOR(CAP_IOCTL_BASE, 0, struct cap_ioc_get_endpoint_uid) 71 #define CAP_IOC_GET_IMS_CERTIFICATE _IOWR(CAP_IOCTL_BASE, 1, struct cap_ioc_get_ims_certificate) 72 #define CAP_IOC_AUTHENTICATE _IOWR(CAP_IOCTL_BASE, 2, struct cap_ioc_authenticate) 73 74 #endif /* __GREYBUS_AUTHENTICATION_USER_H */ 75