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536 lines
18 KiB
536 lines
18 KiB
7 months ago
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/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Import and export general routing data using a XML file.
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*/
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#include <android-base/stringprintf.h>
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#include <base/logging.h>
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#include <errno.h>
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#include <sys/stat.h>
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/* NOTE:
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* This has to be included AFTER the android-base includes since
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* android-base/macros.h defines ATTRIBUTE_UNUSED, also used in the
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* tiny XML library.
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*/
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#include "RouteDataSet.h"
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#include "libxml/xmlmemory.h"
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using android::base::StringPrintf;
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extern std::string nfc_storage_path;
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extern bool nfc_debug_enabled;
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/*******************************************************************************
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**
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** Function: AidBuffer
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**
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** Description: Parse a string of hex numbers. Store result in an array of
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** bytes.
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** aid: string of hex numbers.
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**
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** Returns: None.
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**
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*******************************************************************************/
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AidBuffer::AidBuffer(std::string& aid) : mBuffer(NULL), mBufferLen(0) {
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unsigned int num = 0;
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const char delimiter = ':';
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std::string::size_type pos1 = 0;
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std::string::size_type pos2 = aid.find_first_of(delimiter);
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// parse the AID string; each hex number is separated by a colon;
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mBuffer = new uint8_t[aid.length()];
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while (true) {
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num = 0;
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if (pos2 == std::string::npos) {
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sscanf(aid.substr(pos1).c_str(), "%x", &num);
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mBuffer[mBufferLen] = (uint8_t)num;
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mBufferLen++;
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break;
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} else {
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sscanf(aid.substr(pos1, pos2 - pos1 + 1).c_str(), "%x", &num);
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mBuffer[mBufferLen] = (uint8_t)num;
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mBufferLen++;
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pos1 = pos2 + 1;
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pos2 = aid.find_first_of(delimiter, pos1);
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}
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}
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}
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/*******************************************************************************
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**
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** Function: ~AidBuffer
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**
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** Description: Release all resources.
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**
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** Returns: None.
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**
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*******************************************************************************/
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AidBuffer::~AidBuffer() { delete[] mBuffer; }
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/*******************************************************************************/
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/*******************************************************************************/
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const char* RouteDataSet::sConfigFile = "/param/route.xml";
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/*******************************************************************************
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**
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** Function: ~RouteDataSet
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**
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** Description: Release all resources.
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**
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** Returns: None.
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**
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*******************************************************************************/
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RouteDataSet::~RouteDataSet() { deleteDatabase(); }
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/*******************************************************************************
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**
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** Function: initialize
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**
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** Description: Initialize resources.
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**
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** Returns: True if ok.
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**
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*******************************************************************************/
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bool RouteDataSet::initialize() {
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DLOG_IF(INFO, nfc_debug_enabled)
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<< StringPrintf("%s: enter", "RouteDataSet::initialize");
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// check that the libxml2 version in use is compatible
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// with the version the software has been compiled with
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LIBXML_TEST_VERSION
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DLOG_IF(INFO, nfc_debug_enabled)
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<< StringPrintf("%s: exit; return=true", "RouteDataSet::initialize");
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return true;
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}
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/*******************************************************************************
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**
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** Function: deleteDatabase
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**
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** Description: Delete all routes stored in all databases.
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**
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** Returns: None.
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**
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*******************************************************************************/
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void RouteDataSet::deleteDatabase() {
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DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
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"%s: default db size=%zu; sec elem db size=%zu",
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"RouteDataSet::deleteDatabase", mDefaultRouteDatabase.size(),
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mSecElemRouteDatabase.size());
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Database::iterator it;
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for (it = mDefaultRouteDatabase.begin(); it != mDefaultRouteDatabase.end();
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it++)
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delete (*it);
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mDefaultRouteDatabase.clear();
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for (it = mSecElemRouteDatabase.begin(); it != mSecElemRouteDatabase.end();
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it++)
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delete (*it);
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mSecElemRouteDatabase.clear();
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}
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/*******************************************************************************
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**
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** Function: import
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**
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** Description: Import data from an XML file. Fill the databases.
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**
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** Returns: True if ok.
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**
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*******************************************************************************/
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bool RouteDataSet::import() {
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static const char fn[] = "RouteDataSet::import";
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DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: enter", fn);
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bool retval = false;
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xmlDocPtr doc;
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xmlNodePtr node1;
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std::string strFilename(nfc_storage_path);
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strFilename += sConfigFile;
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deleteDatabase();
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doc = xmlParseFile(strFilename.c_str());
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if (doc == NULL) {
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DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s: fail parse", fn);
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goto TheEnd;
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}
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node1 = xmlDocGetRootElement(doc);
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if (node1 == NULL) {
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LOG(ERROR) << StringPrintf("%s: fail root element", fn);
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goto TheEnd;
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}
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DLOG_IF(INFO, nfc_debug_enabled)
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<< StringPrintf("%s: root=%s", fn, node1->name);
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node1 = node1->xmlChildrenNode;
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while (node1) // loop through all elements in <Routes ...
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{
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if (xmlStrcmp(node1->name, (const xmlChar*)"Route") == 0) {
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xmlChar* value = xmlGetProp(node1, (const xmlChar*)"Type");
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if (value &&
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(xmlStrcmp(value, (const xmlChar*)"SecElemSelectedRoutes") == 0)) {
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DLOG_IF(INFO, nfc_debug_enabled)
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<< StringPrintf("%s: found SecElemSelectedRoutes", fn);
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xmlNodePtr node2 = node1->xmlChildrenNode;
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while (node2) // loop all elements in <Route
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// Type="SecElemSelectedRoutes" ...
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{
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if (xmlStrcmp(node2->name, (const xmlChar*)"Proto") == 0)
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importProtocolRoute(node2, mSecElemRouteDatabase);
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else if (xmlStrcmp(node2->name, (const xmlChar*)"Tech") == 0)
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importTechnologyRoute(node2, mSecElemRouteDatabase);
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node2 = node2->next;
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} // loop all elements in <Route Type="SecElemSelectedRoutes" ...
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} else if (value &&
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(xmlStrcmp(value, (const xmlChar*)"DefaultRoutes") == 0)) {
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DLOG_IF(INFO, nfc_debug_enabled)
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<< StringPrintf("%s: found DefaultRoutes", fn);
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xmlNodePtr node2 = node1->xmlChildrenNode;
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while (node2) // loop all elements in <Route Type="DefaultRoutes" ...
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{
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if (xmlStrcmp(node2->name, (const xmlChar*)"Proto") == 0)
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importProtocolRoute(node2, mDefaultRouteDatabase);
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else if (xmlStrcmp(node2->name, (const xmlChar*)"Tech") == 0)
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importTechnologyRoute(node2, mDefaultRouteDatabase);
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node2 = node2->next;
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} // loop all elements in <Route Type="DefaultRoutes" ...
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}
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if (value) xmlFree(value);
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} // check <Route ...
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node1 = node1->next;
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} // loop through all elements in <Routes ...
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retval = true;
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TheEnd:
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xmlFreeDoc(doc);
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xmlCleanupParser();
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DLOG_IF(INFO, nfc_debug_enabled)
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<< StringPrintf("%s: exit; return=%u", fn, retval);
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return retval;
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}
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/*******************************************************************************
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**
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** Function: saveToFile
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**
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** Description: Save XML data from a string into a file.
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** routesXml: XML that represents routes.
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**
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** Returns: True if ok.
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**
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*******************************************************************************/
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bool RouteDataSet::saveToFile(const char* routesXml) {
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static const char fn[] = "RouteDataSet::saveToFile";
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FILE* fh = NULL;
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size_t actualWritten = 0;
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bool retval = false;
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std::string filename(nfc_storage_path);
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int stat = 0;
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filename.append(sConfigFile);
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fh = fopen(filename.c_str(), "w");
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if (fh == NULL) {
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LOG(ERROR) << StringPrintf("%s: fail to open file", fn);
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return false;
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}
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actualWritten = fwrite(routesXml, sizeof(char), strlen(routesXml), fh);
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retval = actualWritten == strlen(routesXml);
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fclose(fh);
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DLOG_IF(INFO, nfc_debug_enabled)
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<< StringPrintf("%s: wrote %zu bytes", fn, actualWritten);
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if (retval == false) LOG(ERROR) << StringPrintf("%s: error during write", fn);
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// set file permission to
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// owner read, write; group read; other read
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stat = chmod(filename.c_str(), S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
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if (stat == -1) LOG(ERROR) << StringPrintf("%s: error during chmod", fn);
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return retval;
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}
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/*******************************************************************************
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**
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** Function: loadFromFile
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**
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** Description: Load XML data from file into a string.
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** routesXml: string to receive XML data.
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**
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** Returns: True if ok.
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**
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*******************************************************************************/
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bool RouteDataSet::loadFromFile(std::string& routesXml) {
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FILE* fh = NULL;
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size_t actual = 0;
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char buffer[1024];
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std::string filename(nfc_storage_path);
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filename.append(sConfigFile);
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fh = fopen(filename.c_str(), "r");
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if (fh == NULL) {
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DLOG_IF(INFO, nfc_debug_enabled)
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<< StringPrintf("%s: fail to open file", "RouteDataSet::loadFromFile");
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return false;
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}
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while (true) {
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actual = fread(buffer, sizeof(char), sizeof(buffer), fh);
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if (actual == 0) break;
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routesXml.append(buffer, actual);
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}
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fclose(fh);
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DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
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"%s: read %zu bytes", "RouteDataSet::loadFromFile", routesXml.length());
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return true;
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}
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/*******************************************************************************
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**
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** Function: importProtocolRoute
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**
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** Description: Parse data for protocol routes.
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** element: XML node for one protocol route.
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** database: store data in this database.
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**
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** Returns: None.
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**
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*******************************************************************************/
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void RouteDataSet::importProtocolRoute(xmlNodePtr& element,
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Database& database) {
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const xmlChar* id = (const xmlChar*)"Id";
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const xmlChar* secElem = (const xmlChar*)"SecElem";
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const xmlChar* trueString = (const xmlChar*)"true";
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const xmlChar* switchOn = (const xmlChar*)"SwitchOn";
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const xmlChar* switchOff = (const xmlChar*)"SwitchOff";
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const xmlChar* batteryOff = (const xmlChar*)"BatteryOff";
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RouteDataForProtocol* data = new RouteDataForProtocol;
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xmlChar* value = NULL;
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DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
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"%s: element=%s", "RouteDataSet::importProtocolRoute", element->name);
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value = xmlGetProp(element, id);
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if (value) {
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if (xmlStrcmp(value, (const xmlChar*)"T1T") == 0)
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data->mProtocol = NFA_PROTOCOL_MASK_T1T;
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else if (xmlStrcmp(value, (const xmlChar*)"T2T") == 0)
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data->mProtocol = NFA_PROTOCOL_MASK_T2T;
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else if (xmlStrcmp(value, (const xmlChar*)"T3T") == 0)
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data->mProtocol = NFA_PROTOCOL_MASK_T3T;
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else if (xmlStrcmp(value, (const xmlChar*)"IsoDep") == 0)
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data->mProtocol = NFA_PROTOCOL_MASK_ISO_DEP;
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xmlFree(value);
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DLOG_IF(INFO, nfc_debug_enabled)
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<< StringPrintf("%s: %s=0x%X", "RouteDataSet::importProtocolRoute", id,
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data->mProtocol);
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}
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value = xmlGetProp(element, secElem);
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if (value) {
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data->mNfaEeHandle = strtol((char*)value, NULL, 16);
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xmlFree(value);
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data->mNfaEeHandle = data->mNfaEeHandle | NFA_HANDLE_GROUP_EE;
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DLOG_IF(INFO, nfc_debug_enabled)
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<< StringPrintf("%s: %s=0x%X", "RouteDataSet::importProtocolRoute",
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secElem, data->mNfaEeHandle);
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}
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value = xmlGetProp(element, switchOn);
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if (value) {
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data->mSwitchOn = (xmlStrcmp(value, trueString) == 0);
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xmlFree(value);
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}
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value = xmlGetProp(element, switchOff);
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if (value) {
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data->mSwitchOff = (xmlStrcmp(value, trueString) == 0);
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xmlFree(value);
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}
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value = xmlGetProp(element, batteryOff);
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if (value) {
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|
|
data->mBatteryOff = (xmlStrcmp(value, trueString) == 0);
|
||
|
|
xmlFree(value);
|
||
|
|
}
|
||
|
|
database.push_back(data);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
**
|
||
|
|
** Function: importTechnologyRoute
|
||
|
|
**
|
||
|
|
** Description: Parse data for technology routes.
|
||
|
|
** element: XML node for one technology route.
|
||
|
|
** database: store data in this database.
|
||
|
|
**
|
||
|
|
** Returns: None.
|
||
|
|
**
|
||
|
|
*******************************************************************************/
|
||
|
|
void RouteDataSet::importTechnologyRoute(xmlNodePtr& element,
|
||
|
|
Database& database) {
|
||
|
|
const xmlChar* id = (const xmlChar*)"Id";
|
||
|
|
const xmlChar* secElem = (const xmlChar*)"SecElem";
|
||
|
|
const xmlChar* trueString = (const xmlChar*)"true";
|
||
|
|
const xmlChar* switchOn = (const xmlChar*)"SwitchOn";
|
||
|
|
const xmlChar* switchOff = (const xmlChar*)"SwitchOff";
|
||
|
|
const xmlChar* batteryOff = (const xmlChar*)"BatteryOff";
|
||
|
|
RouteDataForTechnology* data = new RouteDataForTechnology;
|
||
|
|
xmlChar* value = NULL;
|
||
|
|
|
||
|
|
DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
|
||
|
|
"%s: element=%s", "RouteDataSet::importTechnologyRoute", element->name);
|
||
|
|
value = xmlGetProp(element, id);
|
||
|
|
if (value) {
|
||
|
|
if (xmlStrcmp(value, (const xmlChar*)"NfcA") == 0)
|
||
|
|
data->mTechnology = NFA_TECHNOLOGY_MASK_A;
|
||
|
|
else if (xmlStrcmp(value, (const xmlChar*)"NfcB") == 0)
|
||
|
|
data->mTechnology = NFA_TECHNOLOGY_MASK_B;
|
||
|
|
else if (xmlStrcmp(value, (const xmlChar*)"NfcF") == 0)
|
||
|
|
data->mTechnology = NFA_TECHNOLOGY_MASK_F;
|
||
|
|
xmlFree(value);
|
||
|
|
DLOG_IF(INFO, nfc_debug_enabled)
|
||
|
|
<< StringPrintf("%s: %s=0x%X", "RouteDataSet::importTechnologyRoute",
|
||
|
|
id, data->mTechnology);
|
||
|
|
}
|
||
|
|
|
||
|
|
value = xmlGetProp(element, secElem);
|
||
|
|
if (value) {
|
||
|
|
data->mNfaEeHandle = strtol((char*)value, NULL, 16);
|
||
|
|
xmlFree(value);
|
||
|
|
data->mNfaEeHandle = data->mNfaEeHandle | NFA_HANDLE_GROUP_EE;
|
||
|
|
DLOG_IF(INFO, nfc_debug_enabled)
|
||
|
|
<< StringPrintf("%s: %s=0x%X", "RouteDataSet::importTechnologyRoute",
|
||
|
|
secElem, data->mNfaEeHandle);
|
||
|
|
}
|
||
|
|
|
||
|
|
value = xmlGetProp(element, switchOn);
|
||
|
|
if (value) {
|
||
|
|
data->mSwitchOn = (xmlStrcmp(value, trueString) == 0);
|
||
|
|
xmlFree(value);
|
||
|
|
}
|
||
|
|
|
||
|
|
value = xmlGetProp(element, switchOff);
|
||
|
|
if (value) {
|
||
|
|
data->mSwitchOff = (xmlStrcmp(value, trueString) == 0);
|
||
|
|
xmlFree(value);
|
||
|
|
}
|
||
|
|
|
||
|
|
value = xmlGetProp(element, batteryOff);
|
||
|
|
if (value) {
|
||
|
|
data->mBatteryOff = (xmlStrcmp(value, trueString) == 0);
|
||
|
|
xmlFree(value);
|
||
|
|
}
|
||
|
|
database.push_back(data);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
**
|
||
|
|
** Function: deleteFile
|
||
|
|
**
|
||
|
|
** Description: Delete route data XML file.
|
||
|
|
**
|
||
|
|
** Returns: True if ok.
|
||
|
|
**
|
||
|
|
*******************************************************************************/
|
||
|
|
bool RouteDataSet::deleteFile() {
|
||
|
|
static const char fn[] = "RouteDataSet::deleteFile";
|
||
|
|
std::string filename(nfc_storage_path);
|
||
|
|
filename.append(sConfigFile);
|
||
|
|
int stat = remove(filename.c_str());
|
||
|
|
DLOG_IF(INFO, nfc_debug_enabled)
|
||
|
|
<< StringPrintf("%s: exit %u", fn, stat == 0);
|
||
|
|
return stat == 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
**
|
||
|
|
** Function: getDatabase
|
||
|
|
**
|
||
|
|
** Description: Obtain a database of routing data.
|
||
|
|
** selection: which database.
|
||
|
|
**
|
||
|
|
** Returns: Pointer to database.
|
||
|
|
**
|
||
|
|
*******************************************************************************/
|
||
|
|
RouteDataSet::Database* RouteDataSet::getDatabase(DatabaseSelection selection) {
|
||
|
|
switch (selection) {
|
||
|
|
case DefaultRouteDatabase:
|
||
|
|
return &mDefaultRouteDatabase;
|
||
|
|
case SecElemRouteDatabase:
|
||
|
|
return &mSecElemRouteDatabase;
|
||
|
|
}
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
**
|
||
|
|
** Function: printDiagnostic
|
||
|
|
**
|
||
|
|
** Description: Print some diagnostic output.
|
||
|
|
**
|
||
|
|
** Returns: None.
|
||
|
|
**
|
||
|
|
*******************************************************************************/
|
||
|
|
void RouteDataSet::printDiagnostic() {
|
||
|
|
static const char fn[] = "RouteDataSet::printDiagnostic";
|
||
|
|
Database* db = getDatabase(DefaultRouteDatabase);
|
||
|
|
|
||
|
|
DLOG_IF(INFO, nfc_debug_enabled)
|
||
|
|
<< StringPrintf("%s: default route database", fn);
|
||
|
|
for (Database::iterator iter = db->begin(); iter != db->end(); iter++) {
|
||
|
|
RouteData* routeData = *iter;
|
||
|
|
switch (routeData->mRouteType) {
|
||
|
|
case RouteData::ProtocolRoute: {
|
||
|
|
RouteDataForProtocol* proto = (RouteDataForProtocol*)routeData;
|
||
|
|
DLOG_IF(INFO, nfc_debug_enabled)
|
||
|
|
<< StringPrintf("%s: ee h=0x%X; protocol=0x%X", fn,
|
||
|
|
proto->mNfaEeHandle, proto->mProtocol);
|
||
|
|
} break;
|
||
|
|
case RouteData::TechnologyRoute: {
|
||
|
|
RouteDataForTechnology* tech = (RouteDataForTechnology*)routeData;
|
||
|
|
DLOG_IF(INFO, nfc_debug_enabled)
|
||
|
|
<< StringPrintf("%s: ee h=0x%X; technology=0x%X", fn,
|
||
|
|
tech->mNfaEeHandle, tech->mTechnology);
|
||
|
|
} break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
DLOG_IF(INFO, nfc_debug_enabled)
|
||
|
|
<< StringPrintf("%s: sec elem route database", fn);
|
||
|
|
db = getDatabase(SecElemRouteDatabase);
|
||
|
|
for (Database::iterator iter2 = db->begin(); iter2 != db->end(); iter2++) {
|
||
|
|
RouteData* routeData = *iter2;
|
||
|
|
switch (routeData->mRouteType) {
|
||
|
|
case RouteData::ProtocolRoute: {
|
||
|
|
RouteDataForProtocol* proto = (RouteDataForProtocol*)routeData;
|
||
|
|
DLOG_IF(INFO, nfc_debug_enabled)
|
||
|
|
<< StringPrintf("%s: ee h=0x%X; protocol=0x%X", fn,
|
||
|
|
proto->mNfaEeHandle, proto->mProtocol);
|
||
|
|
} break;
|
||
|
|
case RouteData::TechnologyRoute: {
|
||
|
|
RouteDataForTechnology* tech = (RouteDataForTechnology*)routeData;
|
||
|
|
DLOG_IF(INFO, nfc_debug_enabled)
|
||
|
|
<< StringPrintf("%s: ee h=0x%X; technology=0x%X", fn,
|
||
|
|
tech->mNfaEeHandle, tech->mTechnology);
|
||
|
|
} break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|