| // Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "shill/callback80211_object.h" |
| |
| #include <string> |
| |
| #include <base/memory/weak_ptr.h> |
| |
| #include "shill/config80211.h" |
| #include "shill/ieee80211.h" |
| #include "shill/link_monitor.h" |
| #include "shill/logging.h" |
| #include "shill/metrics.h" |
| #include "shill/scope_logger.h" |
| #include "shill/user_bound_nlmessage.h" |
| |
| using base::Bind; |
| using base::LazyInstance; |
| using std::string; |
| |
| namespace shill { |
| |
| namespace { |
| LazyInstance<Callback80211Object> g_callback80211 = LAZY_INSTANCE_INITIALIZER; |
| } // namespace |
| |
| Callback80211Object::Callback80211Object() |
| : config80211_(NULL), metrics_(NULL), weak_ptr_factory_(this) { |
| } |
| |
| Callback80211Object::~Callback80211Object() { |
| DeinstallAsCallback(); |
| } |
| |
| void Callback80211Object::Config80211MessageCallback( |
| const UserBoundNlMessage &message) { |
| if (metrics_ && message.GetMessageType() == DeauthenticateMessage::kCommand) { |
| Metrics::WiFiDisconnectByWhom by_whom = |
| message.AttributeExists(NL80211_ATTR_DISCONNECTED_BY_AP) ? |
| Metrics::kDisconnectedByAp : Metrics::kDisconnectedNotByAp; |
| uint16_t reason = static_cast<uint16_t>( |
| IEEE_80211::kReasonCodeInvalid); |
| void *rawdata = NULL; |
| int frame_byte_count = 0; |
| if (message.GetRawAttributeData(NL80211_ATTR_FRAME, &rawdata, |
| &frame_byte_count)) { |
| const uint8_t *frame_data = reinterpret_cast<const uint8_t *>(rawdata); |
| Nl80211Frame frame(frame_data, frame_byte_count); |
| reason = frame.reason(); |
| } |
| IEEE_80211::WiFiReasonCode reason_enum = |
| static_cast<IEEE_80211::WiFiReasonCode>(reason); |
| metrics_->Notify80211Disconnect(by_whom, reason_enum); |
| } |
| |
| // Now, print out the message. |
| |
| SLOG(WiFi, 2) << "Received " << message.GetMessageTypeString() |
| << " (" << + message.GetMessageType() << ")"; |
| scoped_ptr<UserBoundNlMessage::AttributeNameIterator> i; |
| |
| for (i.reset(message.GetAttributeNameIterator()); !i->AtEnd(); i->Advance()) { |
| string value = "<unknown>"; |
| message.GetAttributeString(i->GetName(), &value); |
| SLOG(WiFi, 2) << " Attr:" << message.StringFromAttributeName(i->GetName()) |
| << "=" << value |
| << " Type:" << message.GetAttributeTypeString(i->GetName()); |
| } |
| } |
| |
| bool Callback80211Object::InstallAsCallback() { |
| if (config80211_) { |
| Config80211::Callback callback = |
| Bind(&Callback80211Object::Config80211MessageCallback, |
| weak_ptr_factory_.GetWeakPtr()); |
| config80211_->SetDefaultCallback(callback); |
| return true; |
| } |
| return false; |
| } |
| |
| bool Callback80211Object::DeinstallAsCallback() { |
| if (config80211_) { |
| config80211_->UnsetDefaultCallback(); |
| return true; |
| } |
| return false; |
| } |
| |
| Callback80211Object *Callback80211Object::GetInstance() { |
| return g_callback80211.Pointer(); |
| } |
| |
| } // namespace shill. |