| /* |
| * 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 |