iso7816.h

00001 /*
00002  * Copyright (c) 2014-2018, ARM Limited, All Rights Reserved
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License"); you may
00006  * not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  * http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
00013  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 /**
00018  * \file iso7816.h
00019  * \copyright Copyright (c) ARM Ltd 2014
00020  * \author Donatien Garnier
00021  */
00022 
00023 #ifndef ISO7816_H_
00024 #define ISO7816_H_
00025 
00026 #include "stack/nfc_common.h"
00027 
00028 #include "transceiver/protocols.h"
00029 #include "tech/isodep/isodep_target.h"
00030 
00031 #ifdef __cplusplus
00032 extern "C" {
00033 #endif
00034 
00035 struct nfc_tech_iso7816_c_apdu {
00036     uint8_t cla;
00037     uint8_t ins;
00038     uint8_t p1;
00039     uint8_t p2;
00040     ac_buffer_t dataIn;
00041     size_t maxRespLength;
00042 };
00043 
00044 struct nfc_tech_iso7816_r_apdu {
00045     ac_buffer_t dataOut;
00046     uint16_t sw;
00047 };
00048 
00049 #define ISO7816_RX_BUFFER_SIZE 256
00050 
00051 typedef struct nfc_tech_iso7816_c_apdu nfc_tech_iso7816_c_apdu_t;
00052 typedef struct nfc_tech_iso7816_r_apdu nfc_tech_iso7816_r_apdu_t;
00053 
00054 typedef struct nfc_tech_iso7816 nfc_tech_iso7816_t;
00055 
00056 typedef void (*nfc_tech_iso7816_disconnected_cb)(nfc_tech_iso7816_t *pIso7816, void *pUserData);
00057 
00058 struct nfc_tech_iso7816_app;
00059 typedef struct nfc_tech_iso7816_app nfc_tech_iso7816_app_t;
00060 
00061 struct nfc_tech_iso7816 {
00062     nfc_tech_isodep_target_t isoDepTarget;
00063 
00064     nfc_tech_iso7816_app_t *pAppList;
00065     nfc_tech_iso7816_app_t *pSelectedApp;
00066 
00067     bool disconnected;
00068 
00069     nfc_tech_iso7816_c_apdu_t cApdu;
00070     nfc_tech_iso7816_r_apdu_t rApdu;
00071 
00072     bool responseReady;
00073 
00074     nfc_tech_iso7816_disconnected_cb disconnectedCb;
00075     void *pUserData;
00076 
00077     ac_buffer_t hist; //Historical bytes
00078 
00079     ac_istream_t inputStream;
00080     ac_ostream_t outputStream;
00081 
00082     //PDU buffer (tx)
00083     uint8_t txBuf[2];
00084     ac_buffer_builder_t txBldr;
00085 
00086     //Receive buffer
00087     uint8_t rxBuf[ISO7816_RX_BUFFER_SIZE];
00088     ac_buffer_builder_t rxBldr;
00089 };
00090 
00091 void nfc_tech_iso7816_init(nfc_tech_iso7816_t *pIso7816, nfc_transceiver_t *pTransceiver, nfc_tech_iso7816_disconnected_cb disconnectedCb, void *pUserData);
00092 void nfc_tech_iso7816_add_app(nfc_tech_iso7816_t *pIso7816, nfc_tech_iso7816_app_t *pIso7816App);
00093 void nfc_tech_iso7816_connect(nfc_tech_iso7816_t *pIso7816);
00094 void nfc_tech_iso7816_disconnect(nfc_tech_iso7816_t *pIso7816);
00095 nfc_err_t nfc_tech_iso7816_reply(nfc_tech_iso7816_t *pIso7816);
00096 
00097 inline static nfc_tech_iso7816_c_apdu_t *nfc_tech_iso7816_c_apdu(nfc_tech_iso7816_t *pIso7816)
00098 {
00099     return &pIso7816->cApdu;
00100 }
00101 
00102 inline static nfc_tech_iso7816_r_apdu_t *nfc_tech_iso7816_r_apdu(nfc_tech_iso7816_t *pIso7816)
00103 {
00104     return &pIso7816->rApdu;
00105 }
00106 
00107 #ifdef __cplusplus
00108 }
00109 #endif
00110 
00111 #endif /* ISO7816_H_ */