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/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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.
*/
#define LOG_TAG "NdefRecord"
#include <stdlib.h>
#include "jni.h"
#include "JNIHelp.h"
#include "android_nfc.h"
#include <utils/Log.h>
namespace android {
static jbyteArray android_nfc_NdefRecord_generate(
JNIEnv *e, jobject o, jshort flags, jshort tnf, jbyteArray type,
jbyteArray id, jbyteArray payload)
{
uint32_t status;
phFriNfc_NdefRecord_t record;
uint32_t buf_size;
uint32_t record_size;
uint8_t *buf = NULL;
jbyteArray result = NULL;
/* Prepare NDEF record structure */
record.Flags = (uint8_t)flags;
record.Tnf = (uint8_t)tnf;
record.TypeLength = (uint32_t)e->GetArrayLength(type);
record.Type = (uint8_t *)e->GetByteArrayElements(type, NULL);
record.IdLength = (uint32_t)e->GetArrayLength(id);
record.Id = (uint8_t *)e->GetByteArrayElements(id, NULL);
record.PayloadLength = (uint32_t)e->GetArrayLength(payload);
record.PayloadData = (uint8_t *)e->GetByteArrayElements(payload, NULL);
buf_size = record.PayloadLength + record.IdLength + record.TypeLength + 8;
buf = (uint8_t*)malloc(buf_size);
if (buf == NULL)
goto end;
TRACE("phFriNfc_NdefRecord_Generate()");
status = phFriNfc_NdefRecord_Generate(&record, buf, buf_size,
&record_size);
if (status) {
LOGE("phFriNfc_NdefRecord_Generate() returned 0x%04x", status);
goto end;
}
TRACE("phFriNfc_NdefRecord_Generate() returned 0x%04x", status);
result = e->NewByteArray(record_size);
if (result == NULL)
goto end;
e->SetByteArrayRegion(result, 0, record_size, (jbyte *)buf);
end:
e->ReleaseByteArrayElements(type, (jbyte *)record.Type, JNI_ABORT);
e->ReleaseByteArrayElements(id, (jbyte *)record.Id, JNI_ABORT);
e->ReleaseByteArrayElements(payload, (jbyte *)record.PayloadData, JNI_ABORT);
if(buf)
free(buf);
return result;
}
static jint android_nfc_NdefRecord_parseNdefRecord(JNIEnv *e, jobject o,
jbyteArray array)
{
uint16_t status;
jbyte *raw_record;
jsize raw_record_size;
jint ret = -1;
phFriNfc_NdefRecord_t record;
jfieldID mType, mId, mPayload, mTnf, mFlags;
jbyteArray type = NULL;
jbyteArray id = NULL;
jbyteArray payload = NULL;
jclass record_cls = e->GetObjectClass(o);
raw_record_size = e->GetArrayLength(array);
raw_record = e->GetByteArrayElements(array, NULL);
if (raw_record == NULL) {
goto clean_and_return;
}
TRACE("phFriNfc_NdefRecord_Parse()");
status = phFriNfc_NdefRecord_Parse(&record, (uint8_t *)raw_record);
if (status) {
LOGE("phFriNfc_NdefRecord_Parse() returned 0x%04x", status);
goto clean_and_return;
}
TRACE("phFriNfc_NdefRecord_Parse() returned 0x%04x", status);
/* Set TNF field */
mTnf = e->GetFieldID(record_cls, "mTnf", "S");
e->SetShortField(o, mTnf, record.Tnf);
/* Set type field */
mType = e->GetFieldID(record_cls, "mType", "[B");
type = e->NewByteArray(record.TypeLength);
if (type == NULL) {
goto clean_and_return;
}
e->SetByteArrayRegion(type, 0, record.TypeLength,
(jbyte *)record.Type);
e->SetObjectField(o, mType, type);
/* Set id field */
mId = e->GetFieldID(record_cls, "mId", "[B");
id = e->NewByteArray(record.IdLength);
if (id == NULL) {
goto clean_and_return;
}
e->SetByteArrayRegion(id, 0, record.IdLength,
(jbyte *)record.Id);
e->SetObjectField(o, mId, id);
/* Set payload field */
mPayload = e->GetFieldID(record_cls, "mPayload", "[B");
payload = e->NewByteArray(record.PayloadLength);
if (payload == NULL) {
goto clean_and_return;
}
e->SetByteArrayRegion(payload, 0, record.PayloadLength,
(jbyte *)record.PayloadData);
e->SetObjectField(o, mPayload, payload);
/* Set flags field */
mFlags = e->GetFieldID(record_cls, "mFlags", "B");
e->SetByteField(o, mFlags, record.Flags);
ret = 0;
clean_and_return:
if (type != NULL) {
e->DeleteLocalRef(type);
}
if (id != NULL) {
e->DeleteLocalRef(id);
}
if (payload != NULL) {
e->DeleteLocalRef(payload);
}
if (raw_record != NULL) {
e->ReleaseByteArrayElements(array, raw_record, JNI_ABORT);
}
return ret;
}
static JNINativeMethod gMethods[] = {
{"generate", "(SS[B[B[B)[B", (void *)android_nfc_NdefRecord_generate},
{"parseNdefRecord", "([B)I", (void *)android_nfc_NdefRecord_parseNdefRecord},
};
int register_android_nfc_NdefRecord(JNIEnv *e)
{
return jniRegisterNativeMethods(e, "android/nfc/NdefRecord", gMethods, NELEM(gMethods));
}
} // namespace android
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