140 lines
4.3 KiB
C++
140 lines
4.3 KiB
C++
/*
|
|
* Copyright (C) 2016 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.
|
|
*/
|
|
|
|
#include "wificond/net/mlme_event.h"
|
|
|
|
#include <vector>
|
|
|
|
#include <android-base/logging.h>
|
|
|
|
#include "wificond/net/kernel-header-latest/nl80211.h"
|
|
#include "wificond/net/nl80211_packet.h"
|
|
|
|
using std::array;
|
|
using std::unique_ptr;
|
|
using std::vector;
|
|
|
|
namespace android {
|
|
namespace wificond {
|
|
|
|
namespace {
|
|
|
|
bool GetCommonFields(const NL80211Packet* packet,
|
|
uint32_t* if_index,
|
|
array<uint8_t, ETH_ALEN>* bssid) {
|
|
if (!packet->GetAttributeValue(NL80211_ATTR_IFINDEX, if_index)) {
|
|
LOG(ERROR) << "Failed to get NL80211_ATTR_IFINDEX";
|
|
return false;
|
|
}
|
|
// Some MLME events do not contain MAC address.
|
|
if (!packet->GetAttributeValue(NL80211_ATTR_MAC, bssid)) {
|
|
LOG(DEBUG) << "Failed to get NL80211_ATTR_MAC";
|
|
}
|
|
return true;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
unique_ptr<MlmeAssociateEvent> MlmeAssociateEvent::InitFromPacket(
|
|
const NL80211Packet* packet) {
|
|
if (packet->GetCommand() != NL80211_CMD_ASSOCIATE) {
|
|
return nullptr;
|
|
}
|
|
unique_ptr<MlmeAssociateEvent> associate_event(new MlmeAssociateEvent());
|
|
|
|
if (!GetCommonFields(packet,
|
|
&(associate_event->interface_index_),
|
|
&(associate_event->bssid_))){
|
|
return nullptr;
|
|
}
|
|
// According to wpa_supplicant, status code of an ASSOCIATE event should be
|
|
// parsed from NL80211_ATTR_FRAME attribute.
|
|
// TODO(nywang): Parse NL80211_ATTR_FRAME 80211 management frame and get
|
|
// status code.
|
|
associate_event->status_code_ = 0;
|
|
associate_event->is_timeout_ = packet->HasAttribute(NL80211_ATTR_TIMED_OUT);
|
|
|
|
return associate_event;
|
|
}
|
|
|
|
unique_ptr<MlmeConnectEvent> MlmeConnectEvent::InitFromPacket(
|
|
const NL80211Packet* packet) {
|
|
if (packet->GetCommand() != NL80211_CMD_CONNECT) {
|
|
return nullptr;
|
|
}
|
|
unique_ptr<MlmeConnectEvent> connect_event(new MlmeConnectEvent());
|
|
if (!GetCommonFields(packet,
|
|
&(connect_event->interface_index_),
|
|
&(connect_event->bssid_))){
|
|
return nullptr;
|
|
}
|
|
|
|
if (!packet->GetAttributeValue(NL80211_ATTR_STATUS_CODE,
|
|
&(connect_event->status_code_))) {
|
|
LOG(WARNING) << "Failed to get NL80211_ATTR_STATUS_CODE";
|
|
connect_event->status_code_ = 0;
|
|
}
|
|
connect_event->is_timeout_ = packet->HasAttribute(NL80211_ATTR_TIMED_OUT);
|
|
|
|
return connect_event;
|
|
}
|
|
|
|
unique_ptr<MlmeRoamEvent> MlmeRoamEvent::InitFromPacket(
|
|
const NL80211Packet* packet) {
|
|
if (packet->GetCommand() != NL80211_CMD_ROAM) {
|
|
return nullptr;
|
|
}
|
|
unique_ptr<MlmeRoamEvent> roam_event(new MlmeRoamEvent());
|
|
if (!GetCommonFields(packet,
|
|
&(roam_event->interface_index_),
|
|
&(roam_event->bssid_))){
|
|
return nullptr;
|
|
}
|
|
|
|
return roam_event;
|
|
}
|
|
|
|
unique_ptr<MlmeDisconnectEvent> MlmeDisconnectEvent::InitFromPacket(
|
|
const NL80211Packet* packet) {
|
|
if (packet->GetCommand() != NL80211_CMD_DISCONNECT) {
|
|
return nullptr;
|
|
}
|
|
unique_ptr<MlmeDisconnectEvent> disconnect_event(new MlmeDisconnectEvent());
|
|
if (!GetCommonFields(packet,
|
|
&(disconnect_event->interface_index_),
|
|
&(disconnect_event->bssid_))){
|
|
return nullptr;
|
|
}
|
|
return disconnect_event;
|
|
}
|
|
|
|
unique_ptr<MlmeDisassociateEvent> MlmeDisassociateEvent::InitFromPacket(
|
|
const NL80211Packet* packet) {
|
|
if (packet->GetCommand() != NL80211_CMD_DISASSOCIATE) {
|
|
return nullptr;
|
|
}
|
|
unique_ptr<MlmeDisassociateEvent> disassociate_event(new MlmeDisassociateEvent());
|
|
if (!GetCommonFields(packet,
|
|
&(disassociate_event->interface_index_),
|
|
&(disassociate_event->bssid_))){
|
|
return nullptr;
|
|
}
|
|
return disassociate_event;
|
|
}
|
|
|
|
} // namespace wificond
|
|
} // namespace android
|