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/******************************************************************************
*
* Copyright 2018 NXP
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
#include "LsLib.h"
#include "LsClient.h"
#include <cutils/log.h>
#include <dirent.h>
#include <stdlib.h>
#include <pthread.h>
#include <string.h>
#include <errno.h>
/*static char gethex(const char *s, char **endptr);
char *convert(const char *s, int *length);*/
uint8_t datahex(char c);
void updateLsAid(uint8_t intfInfo);
//extern pLsc_Dwnld_Context_t gpLsc_Dwnld_Context;
//static android::sp<ISecureElementHalCallback> cCallback;
/*******************************************************************************
**
** Function: LSC_Start
**
** Description: Starts the LSC update over DWP
**
** Returns: SUCCESS if ok.
**
*******************************************************************************/
tLSC_STATUS LSC_Start(const char* name, const char* dest, uint8_t* pdata,
uint16_t len, uint8_t* respSW) {
static const char fn[] = "LSC_Start";
tLSC_STATUS status = STATUS_FAILED;
if (name != NULL) {
ALOGE("%s: name is %s", fn, name);
ALOGE("%s: Dest is %s", fn, dest);
status = Perform_LSC(name, dest, pdata, len, respSW);
} else {
ALOGE("Invalid parameter");
}
ALOGE("%s: Exit; status=0x0%X", fn, status);
return status;
}
/*******************************************************************************
**
** Function: performLSDownload
**
** Description: Perform LS during hal init
**
** Returns: SUCCESS of ok
**
*******************************************************************************/
tLSC_STATUS performLSDownload(IChannel_t* data) {
tLSC_STATUS status = STATUS_FAILED;
const char* lsUpdateBackupPath =
"/vendor/etc/loaderservice_updater.txt";
const char* lsUpdateBackupOutPath[2] =
{"/data/vendor/nfc/loaderservice_updater_out.txt",
"/data/vendor/secure_element/loaderservice_updater_out.txt",};
IChannel_t* mchannel = (IChannel_t*)data;
/*generated SHA-1 string for secureElementLS
This will remain constant as handled in secureElement HAL*/
char sha1[] = "6d583e84f2710e6b0f06beebc1a12a1083591373";
uint8_t hash[20] = {};
for (int i = 0; i < 40; i = i + 2) {
hash[i / 2] =
(((datahex(sha1[i]) & 0x0F) << 4) | (datahex(sha1[i + 1]) & 0x0F));
}
/*Check and update if any new LS AID is available*/
updateLsAid(mchannel->getInterfaceInfo());
if(!initialize ((IChannel_t*) data))
return status;
uint8_t resSW[4] = {0x4e, 0x02, 0x69, 0x87};
FILE* fIn, *fOut;
if ((fIn = fopen(lsUpdateBackupPath, "rb")) == NULL) {
ALOGE("%s Cannot open file %s\n", __func__, lsUpdateBackupPath);
ALOGE("%s Error : %s", __func__, strerror(errno));
return status;
} else {
ALOGD("%s File opened %s\n", __func__, lsUpdateBackupPath);
fseek(fIn, 0, SEEK_END);
long fsize = ftell(fIn);
rewind(fIn);
char* lsUpdateBuf = (char*)malloc(fsize + 1);
fread(lsUpdateBuf, fsize, 1, fIn);
fclose(fIn);
if ((fOut = fopen(lsUpdateBackupOutPath[mchannel->getInterfaceInfo()], "wb")) == NULL) {
ALOGE("%s Failed to open file %s\n", __func__,
lsUpdateBackupOutPath[mchannel->getInterfaceInfo()]);
} else {
ALOGD("%s File opened %s\n", __func__,
lsUpdateBackupOutPath[mchannel->getInterfaceInfo()]);
if ((long)fwrite(lsUpdateBuf, 1, fsize, fOut) != fsize) {
ALOGE("%s ERROR - Failed to write %ld bytes to file\n", __func__, fsize);
}
fclose(fOut);
}
status = LSC_Start(lsUpdateBackupPath, lsUpdateBackupOutPath[mchannel->getInterfaceInfo()],
(uint8_t*)hash, (uint16_t)sizeof(hash), resSW);
resSW[0]=0x4e;
ALOGD("%s LSC_Start completed\n", __func__);
if (status == STATUS_SUCCESS) {
if (remove(lsUpdateBackupPath) == 0) {
ALOGD("%s : %s file deleted successfully\n", __func__,
lsUpdateBackupPath);
} else {
ALOGD("%s : %s file deletion failed!!!\n", __func__,
lsUpdateBackupPath);
}
}
free(lsUpdateBuf);
}
ALOGD("%s pthread_exit\n", __func__);
return status;
}
/*******************************************************************************
**
** Function: datahex
**
** Description: Converts char to uint8_t
**
** Returns: uint8_t variable
**
*******************************************************************************/
uint8_t datahex(char c) {
uint8_t value = 0;
if (c >= '0' && c <= '9')
value = (c - '0');
else if (c >= 'A' && c <= 'F')
value = (10 + (c - 'A'));
else if (c >= 'a' && c <= 'f')
value = (10 + (c - 'a'));
return value;
}
/*******************************************************************************
**
** Function: updateLsAid
**
** Description: Store AID in LS_SELF_UPDATE_AID_IDX of ArrayOfAIDs if new LS
** AID is available after LS Self Update
**
** Returns: None
**
*******************************************************************************/
void updateLsAid(uint8_t intfInfo) {
ALOGD_IF( "%s Enter\n", __func__);
FILE* fAID_MEM = NULL;
fAID_MEM = fopen(AID_MEM_PATH[intfInfo], "r");
if (fAID_MEM == NULL) {
ALOGE("%s: AID data file does not exists", __func__);
return;
}
uint8_t aidLen = 0x00;
int32_t wStatus = 0;
while (!(feof(fAID_MEM))) {
wStatus = FSCANF_BYTE(fAID_MEM, "%2x",
&ArrayOfAIDs[LS_SELF_UPDATE_AID_IDX][aidLen++]);
if (wStatus == 0) {
ALOGE("%s: exit: Error during read AID data", __func__);
ArrayOfAIDs[LS_SELF_UPDATE_AID_IDX][0] = 0x00;
break;
}
}
if ((wStatus > 0x00) && (aidLen > 0x00)) {
ArrayOfAIDs[LS_SELF_UPDATE_AID_IDX][0] = aidLen - 1;
}
fclose(fAID_MEM);
}
void* phLS_memset(void* buff, int val, size_t len) {
return memset(buff, val, len);
}
void* phLS_memcpy(void* dest, const void* src, size_t len) {
return memcpy(dest, src, len);
}
void* phLS_memalloc(uint32_t size) { return malloc(size); }
void phLS_free(void* ptr) { return free(ptr); }
void* phLS_calloc(size_t datatype, size_t size) {
return calloc(datatype, size);
}
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