blob: 2fa5110b0d247df5b2bfd8668d402d82fc2ec985 [file] [log] [blame]
// 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/modem.h"
#include <base/bind.h>
#include "shill/cellular.h"
#include "shill/logging.h"
#include "shill/manager.h"
#include "shill/proxy_factory.h"
#include "shill/rtnl_handler.h"
using base::Bind;
using base::Unretained;
using std::string;
using std::vector;
namespace shill {
// TODO(petkov): Consider generating these in mm/mm-modem.h.
const char Modem::kPropertyLinkName[] = "Device";
const char Modem::kPropertyIPMethod[] = "IpMethod";
const char Modem::kPropertyType[] = "Type";
Modem::Modem(const string &owner,
const string &service,
const string &path,
ModemInfo * modem_info)
: owner_(owner),
service_(service),
path_(path),
modem_info_(modem_info),
type_(Cellular::kTypeInvalid),
pending_device_info_(false),
rtnl_handler_(RTNLHandler::GetInstance()),
proxy_factory_(ProxyFactory::GetInstance()) {
LOG(INFO) << "Modem created: " << owner << " at " << path;
}
Modem::~Modem() {
LOG(INFO) << "Modem destructed: " << owner_ << " at " << path_;
if (device_) {
device_->DestroyService();
modem_info_->manager()->device_info()->DeregisterDevice(device_);
}
}
void Modem::Init() {
dbus_properties_proxy_.reset(
proxy_factory_->CreateDBusPropertiesProxy(path(), owner()));
dbus_properties_proxy_->set_modem_manager_properties_changed_callback(
Bind(&Modem::OnModemManagerPropertiesChanged, Unretained(this)));
dbus_properties_proxy_->set_properties_changed_callback(
Bind(&Modem::OnDBusPropertiesChanged, Unretained(this)));
}
void Modem::OnDeviceInfoAvailable(const string &link_name) {
SLOG(Modem, 2) << __func__;
if (pending_device_info_ && link_name_ == link_name) {
// pending_device_info_ is only set if we've already been through
// CreateDeviceFromModemProperties() and saved our initial
// properties already
pending_device_info_ = false;
CreateDeviceFromModemProperties(initial_properties_);
}
}
Cellular *Modem::ConstructCellular(const string &link_name,
const string &address,
int interface_index) {
LOG(INFO) << "Creating a cellular device on link " << link_name_
<< " interface index " << interface_index << ".";
return new Cellular(modem_info_,
link_name,
address,
interface_index,
type_,
owner_,
service_,
path_,
ProxyFactory::GetInstance());
}
void Modem::CreateDeviceFromModemProperties(
const DBusInterfaceToProperties &properties) {
SLOG(Modem, 2) << __func__;
if (device_.get()) {
return;
}
DBusInterfaceToProperties::const_iterator properties_it =
properties.find(GetModemInterface());
if (properties_it == properties.end()) {
LOG(ERROR) << "Unable to find modem interface properties.";
return;
}
if (!GetLinkName(properties_it->second, &link_name_)) {
LOG(ERROR) << "Unable to create cellular device without a link name.";
return;
}
if (modem_info_->manager()->device_info()->IsDeviceBlackListed(link_name_)) {
LOG(INFO) << "Do not create cellular device for blacklisted interface "
<< link_name_;
return;
}
// TODO(petkov): Get the interface index from DeviceInfo, similar to the MAC
// address below.
int interface_index =
rtnl_handler_->GetInterfaceIndex(link_name_);
if (interface_index < 0) {
LOG(ERROR) << "Unable to create cellular device -- no interface index.";
return;
}
ByteString address_bytes;
if (!modem_info_->manager()->device_info()->GetMACAddress(interface_index,
&address_bytes)) {
// Save our properties, wait for OnDeviceInfoAvailable to be called.
LOG(WARNING) << "No hardware address, device creation pending device info.";
initial_properties_ = properties;
pending_device_info_ = true;
return;
}
string address = address_bytes.HexEncode();
device_ = ConstructCellular(link_name_, address, interface_index);
// Give the device a chance to extract any capability-specific properties.
for (properties_it = properties.begin(); properties_it != properties.end();
++properties_it) {
device_->OnDBusPropertiesChanged(
properties_it->first, properties_it->second, vector<string>());
}
modem_info_->manager()->device_info()->RegisterDevice(device_);
}
void Modem::OnDBusPropertiesChanged(
const string &interface,
const DBusPropertiesMap &changed_properties,
const vector<string> &invalidated_properties) {
if (device_.get()) {
device_->OnDBusPropertiesChanged(interface,
changed_properties,
invalidated_properties);
}
}
void Modem::OnModemManagerPropertiesChanged(
const string &interface,
const DBusPropertiesMap &properties) {
vector<string> invalidated_properties;
OnDBusPropertiesChanged(interface, properties, invalidated_properties);
}
} // namespace shill