| // 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/ipconfig.h" |
| |
| #include <sys/time.h> |
| |
| #include <chromeos/dbus/service_constants.h> |
| |
| #include "shill/adaptor_interfaces.h" |
| #include "shill/control_interface.h" |
| #include "shill/error.h" |
| #include "shill/logging.h" |
| #include "shill/net/shill_time.h" |
| #include "shill/static_ip_parameters.h" |
| |
| using base::Callback; |
| using std::string; |
| |
| namespace shill { |
| |
| namespace Logging { |
| static auto kModuleLogScope = ScopeLogger::kInet; |
| static string ObjectID(IPConfig *i) { return i->GetRpcIdentifier(); } |
| } |
| |
| namespace { |
| |
| const time_t kDefaultLeaseExpirationTime = LONG_MAX; |
| |
| } // namespace |
| |
| // static |
| const int IPConfig::kDefaultMTU = 1500; |
| const int IPConfig::kMinIPv4MTU = 576; |
| const int IPConfig::kMinIPv6MTU = 1280; |
| const int IPConfig::kUndefinedMTU = 0; |
| const char IPConfig::kType[] = "ip"; |
| |
| // static |
| uint IPConfig::global_serial_ = 0; |
| |
| IPConfig::IPConfig(ControlInterface *control_interface, |
| const std::string &device_name) |
| : device_name_(device_name), |
| type_(kType), |
| serial_(global_serial_++), |
| adaptor_(control_interface->CreateIPConfigAdaptor(this)) { |
| Init(); |
| } |
| |
| IPConfig::IPConfig(ControlInterface *control_interface, |
| const std::string &device_name, |
| const std::string &type) |
| : device_name_(device_name), |
| type_(type), |
| serial_(global_serial_++), |
| adaptor_(control_interface->CreateIPConfigAdaptor(this)) { |
| Init(); |
| } |
| |
| void IPConfig::Init() { |
| store_.RegisterConstString(kAddressProperty, &properties_.address); |
| store_.RegisterConstString(kBroadcastProperty, |
| &properties_.broadcast_address); |
| store_.RegisterConstString(kDomainNameProperty, &properties_.domain_name); |
| store_.RegisterConstString(kAcceptedHostnameProperty, |
| &properties_.accepted_hostname); |
| store_.RegisterConstString(kGatewayProperty, &properties_.gateway); |
| store_.RegisterConstString(kMethodProperty, &properties_.method); |
| store_.RegisterConstInt32(kMtuProperty, &properties_.mtu); |
| store_.RegisterConstStrings(kNameServersProperty, &properties_.dns_servers); |
| store_.RegisterConstString(kPeerAddressProperty, &properties_.peer_address); |
| store_.RegisterConstInt32(kPrefixlenProperty, &properties_.subnet_prefix); |
| store_.RegisterConstStrings(kSearchDomainsProperty, |
| &properties_.domain_search); |
| store_.RegisterConstString(kVendorEncapsulatedOptionsProperty, |
| &properties_.vendor_encapsulated_options); |
| store_.RegisterConstString(kWebProxyAutoDiscoveryUrlProperty, |
| &properties_.web_proxy_auto_discovery); |
| store_.RegisterConstString(kDelegatedPrefixProperty, |
| &properties_.delegated_prefix); |
| store_.RegisterConstInt32(kDelegatedPrefixLengthProperty, |
| &properties_.delegated_prefix_length); |
| time_ = Time::GetInstance(); |
| current_lease_expiration_time_ = {kDefaultLeaseExpirationTime, 0}; |
| SLOG(this, 2) << __func__ << " device: " << device_name(); |
| } |
| |
| IPConfig::~IPConfig() { |
| SLOG(this, 2) << __func__ << " device: " << device_name(); |
| } |
| |
| string IPConfig::GetRpcIdentifier() { |
| return adaptor_->GetRpcIdentifier(); |
| } |
| |
| bool IPConfig::RequestIP() { |
| return false; |
| } |
| |
| bool IPConfig::RenewIP() { |
| return false; |
| } |
| |
| bool IPConfig::ReleaseIP(ReleaseReason reason) { |
| return false; |
| } |
| |
| void IPConfig::Refresh(Error */*error*/) { |
| if (!refresh_callback_.is_null()) { |
| refresh_callback_.Run(this); |
| } |
| RenewIP(); |
| } |
| |
| void IPConfig::ApplyStaticIPParameters( |
| StaticIPParameters *static_ip_parameters) { |
| static_ip_parameters->ApplyTo(&properties_); |
| EmitChanges(); |
| } |
| |
| void IPConfig::RestoreSavedIPParameters( |
| StaticIPParameters *static_ip_parameters) { |
| static_ip_parameters->RestoreTo(&properties_); |
| EmitChanges(); |
| } |
| |
| void IPConfig::UpdateLeaseExpirationTime(uint32_t new_lease_duration) { |
| struct timeval new_expiration_time; |
| time_->GetTimeBoottime(&new_expiration_time); |
| new_expiration_time.tv_sec += new_lease_duration; |
| current_lease_expiration_time_ = new_expiration_time; |
| } |
| |
| void IPConfig::ResetLeaseExpirationTime() { |
| current_lease_expiration_time_ = {kDefaultLeaseExpirationTime, 0}; |
| } |
| |
| bool IPConfig::TimeToLeaseExpiry(uint32_t *time_left) { |
| if (current_lease_expiration_time_.tv_sec == kDefaultLeaseExpirationTime) { |
| SLOG(this, 2) << __func__ << ": No current DHCP lease"; |
| return false; |
| } |
| struct timeval now; |
| time_->GetTimeBoottime(&now); |
| if (now.tv_sec > current_lease_expiration_time_.tv_sec) { |
| SLOG(this, 2) << __func__ << ": Current DHCP lease has already expired"; |
| return false; |
| } |
| *time_left = current_lease_expiration_time_.tv_sec - now.tv_sec; |
| return true; |
| } |
| |
| void IPConfig::UpdateProperties(const Properties &properties, |
| bool new_lease_acquired) { |
| // Take a reference of this instance to make sure we don't get destroyed in |
| // the middle of this call. (The |update_callback_| may cause a reference |
| // to be dropped. See, e.g., EthernetService::Disconnect and |
| // Ethernet::DropConnection.) |
| IPConfigRefPtr me = this; |
| |
| properties_ = properties; |
| |
| if (!update_callback_.is_null()) { |
| update_callback_.Run(this, new_lease_acquired); |
| } |
| EmitChanges(); |
| } |
| |
| void IPConfig::UpdateDNSServers(const std::vector<std::string> &dns_servers) { |
| properties_.dns_servers = dns_servers; |
| EmitChanges(); |
| } |
| |
| void IPConfig::NotifyFailure() { |
| // Take a reference of this instance to make sure we don't get destroyed in |
| // the middle of this call. (The |update_callback_| may cause a reference |
| // to be dropped. See, e.g., EthernetService::Disconnect and |
| // Ethernet::DropConnection.) |
| IPConfigRefPtr me = this; |
| |
| if (!failure_callback_.is_null()) { |
| failure_callback_.Run(this); |
| } |
| } |
| |
| void IPConfig::NotifyExpiry() { |
| if (!expire_callback_.is_null()) { |
| expire_callback_.Run(this); |
| } |
| } |
| |
| void IPConfig::RegisterUpdateCallback(const UpdateCallback &callback) { |
| update_callback_ = callback; |
| } |
| |
| void IPConfig::RegisterFailureCallback(const Callback &callback) { |
| failure_callback_ = callback; |
| } |
| |
| void IPConfig::RegisterRefreshCallback(const Callback &callback) { |
| refresh_callback_ = callback; |
| } |
| |
| void IPConfig::RegisterExpireCallback(const Callback &callback) { |
| expire_callback_ = callback; |
| } |
| |
| void IPConfig::ResetProperties() { |
| properties_ = Properties(); |
| EmitChanges(); |
| } |
| |
| void IPConfig::EmitChanges() { |
| adaptor_->EmitStringChanged(kAddressProperty, properties_.address); |
| adaptor_->EmitStringsChanged(kNameServersProperty, properties_.dns_servers); |
| } |
| |
| } // namespace shill |