arm_uc_certificate.c

00001 // ----------------------------------------------------------------------------
00002 // Copyright 2016-2017 ARM Ltd.
00003 //
00004 // SPDX-License-Identifier: Apache-2.0
00005 //
00006 // Licensed under the Apache License, Version 2.0 (the "License");
00007 // you may not use this file except in compliance with the License.
00008 // You may obtain a copy of the License at
00009 //
00010 //     http://www.apache.org/licenses/LICENSE-2.0
00011 //
00012 // Unless required by applicable law or agreed to in writing, software
00013 // distributed under the License is distributed on an "AS IS" BASIS,
00014 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00015 // See the License for the specific language governing permissions and
00016 // limitations under the License.
00017 // ----------------------------------------------------------------------------
00018 
00019 #include "update-client-control-center/arm_uc_certificate.h"
00020 #include "update-client-common/arm_uc_config.h"
00021 
00022 #if ARM_UC_USE_KCM
00023 extern const struct arm_uc_certificate_api arm_uc_certificate_kcm_api;
00024 static const struct arm_uc_certificate_api* arm_uc_registered_certificate_api =
00025     &arm_uc_certificate_kcm_api;
00026 #elif ARM_UC_USE_CFSTORE
00027 extern const struct arm_uc_certificate_api arm_uc_certificate_cfstore_api;
00028 static const struct arm_uc_certificate_api* arm_uc_registered_certificate_api =
00029     &arm_uc_certificate_cfstore_api;
00030 #else
00031 #error No configuration store set
00032 #endif
00033 
00034 /**
00035  * @brief Add certificate.
00036  * @details [long description]
00037  *
00038  * @param certificate Pointer to certiface being added.
00039  * @param certificate_size Certificate length.
00040  * @param fingerprint Pointer to the fingerprint of the certificate being added.
00041  * @param fingerprint_size Fingerprint length.
00042  * @return Error code.
00043  */
00044 arm_uc_error_t ARM_UC_Certificate_Add(const uint8_t* certificate,
00045                                       uint16_t certificate_size,
00046                                       const uint8_t* fingerprint,
00047                                       uint16_t fingerprint_size,
00048                                       void (*callback)(arm_uc_error_t, const arm_uc_buffer_t*))
00049 {
00050     //cert Name: base64(fingerprint)
00051     const arm_uc_buffer_t fingerprintBuffer = {
00052         .size = fingerprint_size,
00053         .size_max = fingerprint_size,
00054         .ptr = (uint8_t *)fingerprint /* Const Cast safe because target is in a const struct */
00055     };
00056 
00057     const arm_uc_buffer_t certBuffer = {
00058         .size = certificate_size,
00059         .size_max = certificate_size,
00060         .ptr = (uint8_t *)certificate /* Const Cast safe because target is in a const struct */
00061     };
00062 
00063     const struct arm_uc_certificate_api* api = arm_uc_registered_certificate_api;
00064 
00065     if (api == NULL || api->store == NULL)
00066     {
00067         return (arm_uc_error_t){ ARM_UC_CM_ERR_INVALID_PARAMETER};
00068     }
00069 
00070     arm_uc_error_t err = api->store(&certBuffer, &fingerprintBuffer, callback);
00071 
00072     if (err.error != 0)
00073     {
00074         return err;
00075     }
00076 
00077     return (arm_uc_error_t){ARM_UC_CM_ERR_NONE};
00078 }
00079 
00080 arm_uc_error_t ARM_UC_certificateFetch(arm_uc_buffer_t* certificate,
00081     const arm_uc_buffer_t* fingerprint,
00082     const arm_uc_buffer_t* DERCertificateList,
00083     void (*callback)(arm_uc_error_t, const arm_uc_buffer_t*, const arm_uc_buffer_t*))
00084 {
00085     if (arm_uc_registered_certificate_api == NULL ||
00086         arm_uc_registered_certificate_api->fetch == NULL)
00087     {
00088         return (arm_uc_error_t){ARM_UC_CM_ERR_INVALID_PARAMETER};
00089     }
00090 
00091     return arm_uc_registered_certificate_api->fetch(certificate, fingerprint, DERCertificateList, callback);
00092 }