/*
* Copyright (C) 2013 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.
*/
/*
* Manage the listen-mode routing table.
*/
#include <cutils/log.h>
#include <ScopedLocalRef.h>
#include <JNIHelp.h>
#include "config.h"
#include "JavaClassConstants.h"
#include "RoutingManager.h"
extern "C"
{
#include "nfa_ee_api.h"
#include "nfa_ce_api.h"
}
extern bool gActivated;
extern SyncEvent gDeactivatedEvent;
const JNINativeMethod RoutingManager::sMethods [] =
{
{"doGetDefaultRouteDestination", "()I", (void*) RoutingManager::com_android_nfc_cardemulation_doGetDefaultRouteDestination},
{"doGetDefaultOffHostRouteDestination", "()I", (void*) RoutingManager::com_android_nfc_cardemulation_doGetDefaultOffHostRouteDestination},
{"doGetAidMatchingMode", "()I", (void*) RoutingManager::com_android_nfc_cardemulation_doGetAidMatchingMode}
};
static const int MAX_NUM_EE = 5;
RoutingManager::RoutingManager ()
{
static const char fn [] = "RoutingManager::RoutingManager()";
unsigned long num = 0;
// Get the active SE
if (GetNumValue("ACTIVE_SE", &num, sizeof(num)))
mActiveSe = num;
else
mActiveSe = 0x00;
// Get the "default" route
if (GetNumValue("DEFAULT_ISODEP_ROUTE", &num, sizeof(num)))
mDefaultEe = num;
else
mDefaultEe = 0x00;
ALOGD("%s: default route is 0x%02X", fn, mDefaultEe);
// Get the default "off-host" route. This is hard-coded at the Java layer
// but we can override it here to avoid forcing Java changes.
if (GetNumValue("DEFAULT_OFFHOST_ROUTE", &num, sizeof(num)))
mOffHostEe = num;
else
mOffHostEe = 0xf4;
if (GetNumValue("AID_MATCHING_MODE", &num, sizeof(num)))
mAidMatchingMode = num;
else
mAidMatchingMode = AID_MATCHING_EXACT_ONLY;
ALOGD("%s: mOffHostEe=0x%02X", fn, mOffHostEe);
memset (&mEeInfo, 0, sizeof(mEeInfo));
mReceivedEeInfo = false;
mSeTechMask = 0x00;
}
RoutingManager::~RoutingManager ()
{
NFA_EeDeregister (nfaEeCallback);
}
bool RoutingManager::initialize (nfc_jni_native_data* native)
{
static const char fn [] = "RoutingManager::initialize()";
mNativeData = native;
tNFA_STATUS nfaStat;
{
SyncEventGuard guard (mEeRegisterEvent);
ALOGD ("%s: try ee register", fn);
nfaStat = NFA_EeRegister (nfaEeCallback);
if (nfaStat != NFA_STATUS_OK)
{
ALOGE ("%s: fail ee register; error=0x%X", fn, nfaStat);
return false;
}
mEeRegisterEvent.wait ();
}
mRxDataBuffer.clear ();
if (mActiveSe != 0) {
{
// Wait for EE info if needed
SyncEventGuard guard (mEeInfoEvent);
if (!mReceivedEeInfo)
{
ALOGE("Waiting for EE info");
mEeInfoEvent.wait();
}
}
for (UINT8 i = 0; i < mEeInfo.num_ee; i++)
{
ALOGD ("%s EE[%u] Handle: 0x%04x techA: 0x%02x techB: 0x%02x techF: 0x%02x techBprime: 0x%02x",
fn, i, mEeInfo.ee_disc_info[i].ee_handle,
mEeInfo.ee_disc_info[i].la_protocol,
mEeInfo.ee_disc_info[i].lb_protocol,
mEeInfo.ee_disc_info[i].lf_protocol,
mEeInfo.ee_disc_info[i].lbp_protocol);
if (mEeInfo.ee_disc_info[i].ee_handle == (mActiveSe | NFA_HANDLE_GROUP_EE))
{
if (mEeInfo.ee_disc_info[i].la_protocol != 0) mSeTechMask |= NFA_TECHNOLOGY_MASK_A;
if (mSeTechMask != 0x00)
{
ALOGD("Configuring tech mask 0x%02x on EE 0x%04x", mSeTechMask, mEeInfo.ee_disc_info[i].ee_handle);
nfaStat = NFA_CeConfigureUiccListenTech(mEeInfo.ee_disc_info[i].ee_handle, mSeTechMask);
if (nfaStat != NFA_STATUS_OK)
ALOGE ("Failed to configure UICC listen technologies.");
// Set technology routes to UICC if it's there
nfaStat = NFA_EeSetDefaultTechRouting(mEeInfo.ee_disc_info[i].ee_handle, mSeTechMask, mSeTechMask,
mSeTechMask);
if (nfaStat != NFA_STATUS_OK)
ALOGE ("Failed to configure UICC technology routing.");
}
}
}
}
// Tell the host-routing to only listen on Nfc-A
nfaStat = NFA_CeSetIsoDepListenTech(NFA_TECHNOLOGY_MASK_A);
if (nfaStat != NFA_STATUS_OK)
ALOGE ("Failed to configure CE IsoDep technologies");
// Register a wild-card for AIDs routed to the host
nfaStat = NFA_CeRegisterAidOnDH (NULL, 0, stackCallback);
if (nfaStat != NFA_STATUS_OK)
ALOGE("Failed to register wildcard AID for DH");
return true;
}
RoutingManager& RoutingManager::getInstance ()
{
static RoutingManager manager;
return manager;
}
void RoutingManager::enableRoutingToHost()
{
tNFA_STATUS nfaStat;
{
SyncEventGuard guard (mRoutingEvent);
// Route Nfc-A to host if we don't have a SE
if (mSeTechMask == 0)
{
nfaStat = NFA_EeSetDefaultTechRouting (mDefaultEe, NFA_TECHNOLOGY_MASK_A, 0, 0);
if (nfaStat == NFA_STATUS_OK)
mRoutingEvent.wait ();
else
ALOGE ("Fail to set default tech routing");
}
// Default routing for IsoDep protocol
nfaStat = NFA_EeSetDefaultProtoRouting(mDefaultEe, NFA_PROTOCOL_MASK_ISO_DEP, 0, 0);
if (nfaStat == NFA_STATUS_OK)
mRoutingEvent.wait ();
else
ALOGE ("Fail to set default proto routing");
}
}
void RoutingManager::disableRoutingToHost()
{
tNFA_STATUS nfaStat;
{
SyncEventGuard guard (mRoutingEvent);
// Default routing for NFC-A technology if we don't have a SE
if (mSeTechMask == 0)
{
nfaStat = NFA_EeSetDefaultTechRouting (mDefaultEe, 0, 0, 0);
if (nfaStat == NFA_STATUS_OK)
mRoutingEvent.wait ();
else
ALOGE ("Fail to set default tech routing");
}
// Default routing for IsoDep protocol
nfaStat = NFA_EeSetDefaultProtoRouting(mDefaultEe, 0, 0, 0);
if (nfaStat == NFA_STATUS_OK)
mRoutingEvent.wait ();
else
ALOGE ("Fail to set default proto routing");
}
}
bool RoutingManager::addAidRouting(const UINT8* aid, UINT8 aidLen, int route)
{
static const char fn [] = "RoutingManager::addAidRouting";
ALOGD ("%s: enter", fn);
tNFA_STATUS nfaStat = NFA_EeAddAidRouting(route, aidLen, (UINT8*) aid, 0x01);
if (nfaStat == NFA_STATUS_OK)
{
ALOGD ("%s: routed AID", fn);
return true;
} else
{
ALOGE ("%s: failed to route AID", fn);
return false;
}
}
bool RoutingManager::removeAidRouting(const UINT8* aid, UINT8 aidLen)
{
static const char fn [] = "RoutingManager::removeAidRouting";
ALOGD ("%s: enter", fn);
tNFA_STATUS nfaStat = NFA_EeRemoveAidRouting(aidLen, (UINT8*) aid);
if (nfaStat == NFA_STATUS_OK)
{
ALOGD ("%s: removed AID", fn);
return true;
} else
{
ALOGE ("%s: failed to remove AID", fn);
return false;
}
}
bool RoutingManager::commitRouting()
{
static const char fn [] = "RoutingManager::commitRouting";
tNFA_STATUS nfaStat = 0;
ALOGD ("%s", fn);
{
SyncEventGuard guard (mEeUpdateEvent);
nfaStat = NFA_EeUpdateNow();
if (nfaStat == NFA_STATUS_OK)
{
mEeUpdateEvent.wait (); //wait for NFA_EE_UPDATED_EVT
}
}
return (nfaStat == NFA_STATUS_OK);
}
void RoutingManager::onNfccShutdown ()
{
static const char fn [] = "RoutingManager:onNfccShutdown";
if (mActiveSe == 0x00) return;
tNFA_STATUS nfaStat = NFA_STATUS_FAILED;
UINT8 actualNumEe = MAX_NUM_EE;
tNFA_EE_INFO eeInfo[MAX_NUM_EE];
memset (&eeInfo, 0, sizeof(eeInfo));
if ((nfaStat = NFA_EeGetInfo (&actualNumEe, eeInfo)) != NFA_STATUS_OK)
{
ALOGE ("%s: fail get info; error=0x%X", fn, nfaStat);
return;
}
if (actualNumEe != 0)
{
for (UINT8 xx = 0; xx < actualNumEe; xx++)
{
if ((eeInfo[xx].num_interface != 0)
&& (eeInfo[xx].ee_interface[0] != NCI_NFCEE_INTERFACE_HCI_ACCESS)
&& (eeInfo[xx].ee_status == NFA_EE_STATUS_ACTIVE))
{
ALOGD ("%s: Handle: 0x%04x Change Status Active to Inactive", fn, eeInfo[xx].ee_handle);
SyncEventGuard guard (mEeSetModeEvent);
if ((nfaStat = NFA_EeModeSet (eeInfo[xx].ee_handle, NFA_EE_MD_DEACTIVATE)) == NFA_STATUS_OK)
{
mEeSetModeEvent.wait (); //wait for NFA_EE_MODE_SET_EVT
}
else
{
ALOGE ("Failed to set EE inactive");
}
}
}
}
else
{
ALOGD ("%s: No active EEs found", fn);
}
}
void RoutingManager::notifyActivated ()
{
JNIEnv* e = NULL;
ScopedAttach attach(mNativeData->vm, &e);
if (e == NULL)
{
ALOGE ("jni env is null");
return;
}
e->CallVoidMethod (mNativeData->manager, android::gCachedNfcManagerNotifyHostEmuActivated);
if (e->ExceptionCheck())
{
e->ExceptionClear();
ALOGE ("fail notify");
}
}
void RoutingManager::notifyDeactivated ()
{
mRxDataBuffer.clear();
JNIEnv* e = NULL;
ScopedAttach attach(mNativeData->vm, &e);
if (e == NULL)
{
ALOGE ("jni env is null");
return;
}
e->CallVoidMethod (mNativeData->manager, android::gCachedNfcManagerNotifyHostEmuDeactivated);
if (e->ExceptionCheck())
{
e->ExceptionClear();
ALOGE ("fail notify");
}
}
void RoutingManager::handleData (const UINT8* data, UINT32 dataLen, tNFA_STATUS status)
{
if (dataLen <= 0)
{
ALOGE("no data");
goto TheEnd;
}
if (status == NFA_STATUS_CONTINUE)
{
mRxDataBuffer.insert (mRxDataBuffer.end(), &data[0], &data[dataLen]); //append data; more to come
return; //expect another NFA_CE_DATA_EVT to come
}
else if (status == NFA_STATUS_OK)
{
mRxDataBuffer.insert (mRxDataBuffer.end(), &data[0], &data[dataLen]); //append data
//entire data packet has been received; no more NFA_CE_DATA_EVT
}
else if (status == NFA_STATUS_FAILED)
{
ALOGE("RoutingManager::handleData: read data fail");
goto TheEnd;
}
{
JNIEnv* e = NULL;
ScopedAttach attach(mNativeData->vm, &e);
if (e == NULL)
{
ALOGE ("jni env is null");
goto TheEnd;
}
ScopedLocalRef<jobject> dataJavaArray(e, e->NewByteArray(mRxDataBuffer.size()));
if (dataJavaArray.get() == NULL)
{
ALOGE ("fail allocate array");
goto TheEnd;
}
e->SetByteArrayRegion ((jbyteArray)dataJavaArray.get(), 0, mRxDataBuffer.size(),
(jbyte *)(&mRxDataBuffer[0]));
if (e->ExceptionCheck())
{
e->ExceptionClear();
ALOGE ("fail fill array");
goto TheEnd;
}
e->CallVoidMethod (mNativeData->manager, android::gCachedNfcManagerNotifyHostEmuData, dataJavaArray.get());
if (e->ExceptionCheck())
{
e->ExceptionClear();
ALOGE ("fail notify");
}
}
TheEnd:
mRxDataBuffer.clear();
}
void RoutingManager::stackCallback (UINT8 event, tNFA_CONN_EVT_DATA* eventData)
{
static const char fn [] = "RoutingManager::stackCallback";
ALOGD("%s: event=0x%X", fn, event);
RoutingManager& routingManager = RoutingManager::getInstance();
switch (event)
{
case NFA_CE_REGISTERED_EVT:
{
tNFA_CE_REGISTERED& ce_registered = eventData->ce_registered;
ALOGD("%s: NFA_CE_REGISTERED_EVT; status=0x%X; h=0x%X", fn, ce_registered.status, ce_registered.handle);
}
break;
case NFA_CE_DEREGISTERED_EVT:
{
tNFA_CE_DEREGISTERED& ce_deregistered = eventData->ce_deregistered;
ALOGD("%s: NFA_CE_DEREGISTERED_EVT; h=0x%X", fn, ce_deregistered.handle);
}
break;
case NFA_CE_ACTIVATED_EVT:
{
routingManager.notifyActivated();
}
break;
case NFA_DEACTIVATED_EVT:
case NFA_CE_DEACTIVATED_EVT:
{
ALOGD("%s: NFA_DEACTIVATED_EVT, NFA_CE_DEACTIVATED_EVT", fn);
routingManager.notifyDeactivated();
SyncEventGuard g (gDeactivatedEvent);
gActivated = false; //guard this variable from multi-threaded access
gDeactivatedEvent.notifyOne ();
}
break;
case NFA_CE_DATA_EVT:
{
tNFA_CE_DATA& ce_data = eventData->ce_data;
ALOGD("%s: NFA_CE_DATA_EVT; stat=0x%X; h=0x%X; data len=%u", fn, ce_data.status, ce_data.handle, ce_data.len);
getInstance().handleData(ce_data.p_data, ce_data.len, ce_data.status);
}
break;
}
}
/*******************************************************************************
**
** Function: nfaEeCallback
**
** Description: Receive execution environment-related events from stack.
** event: Event code.
** eventData: Event data.
**
** Returns: None
**
*******************************************************************************/
void RoutingManager::nfaEeCallback (tNFA_EE_EVT event, tNFA_EE_CBACK_DATA* eventData)
{
static const char fn [] = "RoutingManager::nfaEeCallback";
RoutingManager& routingManager = RoutingManager::getInstance();
switch (event)
{
case NFA_EE_REGISTER_EVT:
{
SyncEventGuard guard (routingManager.mEeRegisterEvent);
ALOGD ("%s: NFA_EE_REGISTER_EVT; status=%u", fn, eventData->ee_register);
routingManager.mEeRegisterEvent.notifyOne();
}
break;
case NFA_EE_MODE_SET_EVT:
{
SyncEventGuard guard (routingManager.mEeSetModeEvent);
ALOGD ("%s: NFA_EE_MODE_SET_EVT; status: 0x%04X handle: 0x%04X ", fn,
eventData->mode_set.status, eventData->mode_set.ee_handle);
routingManager.mEeSetModeEvent.notifyOne();
}
break;
case NFA_EE_SET_TECH_CFG_EVT:
{
ALOGD ("%s: NFA_EE_SET_TECH_CFG_EVT; status=0x%X", fn, eventData->status);
SyncEventGuard guard(routingManager.mRoutingEvent);
routingManager.mRoutingEvent.notifyOne();
}
break;
case NFA_EE_SET_PROTO_CFG_EVT:
{
ALOGD ("%s: NFA_EE_SET_PROTO_CFG_EVT; status=0x%X", fn, eventData->status);
SyncEventGuard guard(routingManager.mRoutingEvent);
routingManager.mRoutingEvent.notifyOne();
}
break;
case NFA_EE_ACTION_EVT:
{
tNFA_EE_ACTION& action = eventData->action;
if (action.trigger == NFC_EE_TRIG_SELECT)
ALOGD ("%s: NFA_EE_ACTION_EVT; h=0x%X; trigger=select (0x%X)", fn, action.ee_handle, action.trigger);
else if (action.trigger == NFC_EE_TRIG_APP_INIT)
{
tNFC_APP_INIT& app_init = action.param.app_init;
ALOGD ("%s: NFA_EE_ACTION_EVT; h=0x%X; trigger=app-init (0x%X); aid len=%u; data len=%u", fn,
action.ee_handle, action.trigger, app_init.len_aid, app_init.len_data);
}
else if (action.trigger == NFC_EE_TRIG_RF_PROTOCOL)
ALOGD ("%s: NFA_EE_ACTION_EVT; h=0x%X; trigger=rf protocol (0x%X)", fn, action.ee_handle, action.trigger);
else if (action.trigger == NFC_EE_TRIG_RF_TECHNOLOGY)
ALOGD ("%s: NFA_EE_ACTION_EVT; h=0x%X; trigger=rf tech (0x%X)", fn, action.ee_handle, action.trigger);
else
ALOGE ("%s: NFA_EE_ACTION_EVT; h=0x%X; unknown trigger (0x%X)", fn, action.ee_handle, action.trigger);
}
break;
case NFA_EE_DISCOVER_REQ_EVT:
{
ALOGD ("%s: NFA_EE_DISCOVER_REQ_EVT; status=0x%X; num ee=%u", __FUNCTION__,
eventData->discover_req.status, eventData->discover_req.num_ee);
SyncEventGuard guard (routingManager.mEeInfoEvent);
memcpy (&routingManager.mEeInfo, &eventData->discover_req, sizeof(routingManager.mEeInfo));
routingManager.mReceivedEeInfo = true;
routingManager.mEeInfoEvent.notifyOne();
}
break;
case NFA_EE_NO_CB_ERR_EVT:
ALOGD ("%s: NFA_EE_NO_CB_ERR_EVT status=%u", fn, eventData->status);
break;
case NFA_EE_ADD_AID_EVT:
{
ALOGD ("%s: NFA_EE_ADD_AID_EVT status=%u", fn, eventData->status);
}
break;
case NFA_EE_REMOVE_AID_EVT:
{
ALOGD ("%s: NFA_EE_REMOVE_AID_EVT status=%u", fn, eventData->status);
}
break;
case NFA_EE_NEW_EE_EVT:
{
ALOGD ("%s: NFA_EE_NEW_EE_EVT h=0x%X; status=%u", fn,
eventData->new_ee.ee_handle, eventData->new_ee.ee_status);
}
break;
case NFA_EE_UPDATED_EVT:
{
ALOGD("%s: NFA_EE_UPDATED_EVT", fn);
SyncEventGuard guard(routingManager.mEeUpdateEvent);
routingManager.mEeUpdateEvent.notifyOne();
}
break;
default:
ALOGE ("%s: unknown event=%u ????", fn, event);
break;
}
}
int RoutingManager::registerJniFunctions (JNIEnv* e)
{
static const char fn [] = "RoutingManager::registerJniFunctions";
ALOGD ("%s", fn);
return jniRegisterNativeMethods (e, "com/android/nfc/cardemulation/AidRoutingManager", sMethods, NELEM(sMethods));
}
int RoutingManager::com_android_nfc_cardemulation_doGetDefaultRouteDestination (JNIEnv*)
{
return getInstance().mDefaultEe;
}
int RoutingManager::com_android_nfc_cardemulation_doGetDefaultOffHostRouteDestination (JNIEnv*)
{
return getInstance().mOffHostEe;
}
int RoutingManager::com_android_nfc_cardemulation_doGetAidMatchingMode (JNIEnv*)
{
return getInstance().mAidMatchingMode;
}