device_info.cc revision 6950ba51e9a35b91687103fdc451e1539cdfb35d
141c0e0accae6602dbc9fc31f336dabee7af1b170Darin Petkov// Copyright (c) 2012 The Chromium OS Authors. All rights reserved. 20af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart// Use of this source code is governed by a BSD-style license that can be 30af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart// found in the LICENSE file. 40af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 5cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include "shill/device_info.h" 60af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 70af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart#include <arpa/inet.h> 8cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include <fcntl.h> 9cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include <linux/if_tun.h> 100af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart#include <linux/netlink.h> 110af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart#include <linux/rtnetlink.h> 12cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include <net/if.h> 13cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include <net/if_arp.h> 14cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include <netinet/ether.h> 15cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include <string.h> 16cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include <sys/ioctl.h> 17cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include <sys/socket.h> 18cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include <time.h> 19cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart#include <unistd.h> 20cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart 210af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart#include <string> 220af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 233e20a2341d0aeb7681e4ee0f89eae6817ade2b3bEric Shienbrood#include <base/bind.h> 24bf1861b28b61d2338116e4416ac8f2a45f7045cePaul Stewart#include <base/file_util.h> 25487b8bfc46a91e29bb23aaf3c59cfe67033bfc8bChris Masone#include <base/memory/scoped_ptr.h> 263e20a2341d0aeb7681e4ee0f89eae6817ade2b3bEric Shienbrood#include <base/stl_util.h> 272001a42edf1d42ec828a9baf3157496c20fefd49Paul Stewart#include <base/string_number_conversions.h> 28877ff9894e21c4c78b63777025f6c8d577ccd855Chris Masone#include <base/string_util.h> 29b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart#include <base/stringprintf.h> 300af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 310af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart#include "shill/control_interface.h" 329be4a9d1e87d64f850f15061123b2a4334477fa2Chris Masone#include "shill/device.h" 33a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul Stewart#include "shill/device_stub.h" 34b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart#include "shill/ethernet.h" 35b691efd71561246065eae3cdd73a96ca1b8a528dChristopher Wiley#include "shill/logging.h" 36b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart#include "shill/manager.h" 372ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart#include "shill/netlink_attribute.h" 382ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart#include "shill/netlink_manager.h" 392ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart#include "shill/nl80211_message.h" 408c116a90d3a3536430b808b15e73275060918434Paul Stewart#include "shill/routing_table.h" 41a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul Stewart#include "shill/rtnl_handler.h" 42a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul Stewart#include "shill/rtnl_listener.h" 432aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone#include "shill/rtnl_message.h" 44487b8bfc46a91e29bb23aaf3c59cfe67033bfc8bChris Masone#include "shill/service.h" 454178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain#include "shill/sockets.h" 4693a29ed675f5c75250d09e192d72fe6804c10111mukesh agrawal#include "shill/virtio_ethernet.h" 47c3505a569e3f98ce56e4017300a3ce46bc714e4cDarin Petkov#include "shill/vpn_provider.h" 48b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart#include "shill/wifi.h" 490af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 503e20a2341d0aeb7681e4ee0f89eae6817ade2b3bEric Shienbroodusing base::Bind; 510e1cdeae24dd678a5fe27c840802582c0ca45ec0Albert Chaulkusing base::FilePath; 528f1c835d879f82261a08257eb6f9677e6be51fdaThieu Leusing base::StringPrintf; 533e20a2341d0aeb7681e4ee0f89eae6817ade2b3bEric Shienbroodusing base::Unretained; 54e6193c042652831cac90c3bbf2233877754b1eefDarin Petkovusing std::map; 55050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewartusing std::set; 560af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewartusing std::string; 579a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewartusing std::vector; 580af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 590af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewartnamespace shill { 60b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart 61b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart// static 62abc5403270e26fa898181301911a905758f8d758Jason Glasgowconst char DeviceInfo::kModemPseudoDeviceNamePrefix[] = "pseudomodem"; 63e049cc5ad0db026c66cf448cecc48330b9e59360Christopher Wileyconst char DeviceInfo::kEthernetPseudoDeviceNamePrefix[] = "pseudoethernet"; 64ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewartconst char DeviceInfo::kDeviceInfoRoot[] = "/sys/class/net"; 654e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chanconst char DeviceInfo::kDriverCdcEther[] = "cdc_ether"; 664eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chanconst char DeviceInfo::kDriverCdcNcm[] = "cdc_ncm"; 674e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chanconst char DeviceInfo::kDriverGdmWiMax[] = "gdm_wimax"; 6893a29ed675f5c75250d09e192d72fe6804c10111mukesh agrawalconst char DeviceInfo::kDriverVirtioNet[] = "virtio_net"; 69ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewartconst char DeviceInfo::kInterfaceUevent[] = "uevent"; 709364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewartconst char DeviceInfo::kInterfaceUeventWifiSignature[] = "DEVTYPE=wlan\n"; 71ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewartconst char DeviceInfo::kInterfaceDevice[] = "device"; 72ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewartconst char DeviceInfo::kInterfaceDriver[] = "device/driver"; 73ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewartconst char DeviceInfo::kInterfaceTunFlags[] = "tun_flags"; 74ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewartconst char DeviceInfo::kInterfaceType[] = "type"; 75b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewartconst char *DeviceInfo::kModemDrivers[] = { 76b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart "gobi", 77b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart "QCUSBNet2k", 78226d46a2e03d316e8a36f93cb261f708219aef07Ben Chan "GobiNet", 790f90e0b62322ae95c1a419d5efef47438b4617c9Ben Chan "cdc_mbim", 80226d46a2e03d316e8a36f93cb261f708219aef07Ben Chan "qmi_wwan" 81b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart}; 82cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewartconst char DeviceInfo::kTunDeviceName[] = "/dev/net/tun"; 83050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewartconst int DeviceInfo::kDelayedDeviceCreationSeconds = 5; 84b061f89e7088c7fba50b49ee5ac876619c9e8a7eBen Chanconst int DeviceInfo::kRequestLinkStatisticsIntervalMilliseconds = 20000; 85b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart 86b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul StewartDeviceInfo::DeviceInfo(ControlInterface *control_interface, 87b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart EventDispatcher *dispatcher, 883426c8fc7a3943f2d8fcb2ec78f0593088b42bedThieu Le Metrics *metrics, 89b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart Manager *manager) 90a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul Stewart : control_interface_(control_interface), 91a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul Stewart dispatcher_(dispatcher), 923426c8fc7a3943f2d8fcb2ec78f0593088b42bedThieu Le metrics_(metrics), 93a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul Stewart manager_(manager), 943e20a2341d0aeb7681e4ee0f89eae6817ade2b3bEric Shienbrood link_callback_(Bind(&DeviceInfo::LinkMsgHandler, Unretained(this))), 953e20a2341d0aeb7681e4ee0f89eae6817ade2b3bEric Shienbrood address_callback_(Bind(&DeviceInfo::AddressMsgHandler, Unretained(this))), 969a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart link_listener_(NULL), 979a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart address_listener_(NULL), 98ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart device_info_root_(kDeviceInfoRoot), 998c116a90d3a3536430b808b15e73275060918434Paul Stewart routing_table_(RoutingTable::GetInstance()), 1004178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain rtnl_handler_(RTNLHandler::GetInstance()), 1012ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart netlink_manager_(NetlinkManager::GetInstance()), 1024178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain sockets_(new Sockets()) { 1030af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart} 1040af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 105a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul StewartDeviceInfo::~DeviceInfo() {} 1060af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 1078f317b600a218afe05f2d73c59204bb98269a950mukesh agrawalvoid DeviceInfo::AddDeviceToBlackList(const string &device_name) { 1088f317b600a218afe05f2d73c59204bb98269a950mukesh agrawal black_list_.insert(device_name); 1098f317b600a218afe05f2d73c59204bb98269a950mukesh agrawal} 1108f317b600a218afe05f2d73c59204bb98269a950mukesh agrawal 1115e628a5c722c196ad240af0ff3c717e9613d3ef5Eric Shienbroodbool DeviceInfo::IsDeviceBlackListed(const string &device_name) { 1125e628a5c722c196ad240af0ff3c717e9613d3ef5Eric Shienbrood return ContainsKey(black_list_, device_name); 1135e628a5c722c196ad240af0ff3c717e9613d3ef5Eric Shienbrood} 1145e628a5c722c196ad240af0ff3c717e9613d3ef5Eric Shienbrood 115a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul Stewartvoid DeviceInfo::Start() { 116a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul Stewart link_listener_.reset( 1173e20a2341d0aeb7681e4ee0f89eae6817ade2b3bEric Shienbrood new RTNLListener(RTNLHandler::kRequestLink, link_callback_)); 1189a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart address_listener_.reset( 1193e20a2341d0aeb7681e4ee0f89eae6817ade2b3bEric Shienbrood new RTNLListener(RTNLHandler::kRequestAddr, address_callback_)); 1209a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart rtnl_handler_->RequestDump(RTNLHandler::kRequestLink | 1219a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart RTNLHandler::kRequestAddr); 1221ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart request_link_statistics_callback_.Reset( 1231ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart Bind(&DeviceInfo::RequestLinkStatistics, AsWeakPtr())); 1241ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart dispatcher_->PostDelayedTask(request_link_statistics_callback_.callback(), 125b061f89e7088c7fba50b49ee5ac876619c9e8a7eBen Chan kRequestLinkStatisticsIntervalMilliseconds); 1260af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart} 1270af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 128a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul Stewartvoid DeviceInfo::Stop() { 1299a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart link_listener_.reset(); 1309a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart address_listener_.reset(); 1318c116a90d3a3536430b808b15e73275060918434Paul Stewart infos_.clear(); 1321ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart request_link_statistics_callback_.Cancel(); 133050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart delayed_devices_callback_.Cancel(); 134050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart delayed_devices_.clear(); 1350af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart} 1360af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 1375086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chanvector<string> DeviceInfo::GetUninitializedTechnologies() const { 1385086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan set<string> unique_technologies; 139b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray set<Technology::Identifier> initialized_technologies; 1405086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan for (map<int, Info>::const_iterator it = infos_.begin(); it != infos_.end(); 1415086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan ++it) { 1425086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan Technology::Identifier technology = it->second.technology; 143b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray if (it->second.device) { 144b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray // If there is more than one device for a technology and at least 145b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray // one of them has been initialized, make sure that it doesn't get 146b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray // listed as uninitialized. 147b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray initialized_technologies.insert(technology); 148b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray unique_technologies.erase(Technology::NameFromIdentifier(technology)); 149b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray continue; 150b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray } 151b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray if (Technology::IsPrimaryConnectivityTechnology(technology) && 152b00c13d6444ba67154acffec537bdb466099f7b1Arman Uguray !ContainsKey(initialized_technologies, technology)) 1535086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan unique_technologies.insert(Technology::NameFromIdentifier(technology)); 1545086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan } 1555086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan return vector<string>(unique_technologies.begin(), unique_technologies.end()); 1565086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan} 1575086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan 1586f9eaa30b850ee4a22e71fd1b6ab13c873ec7110Darin Petkovvoid DeviceInfo::RegisterDevice(const DeviceRefPtr &device) { 159fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << __func__ << "(" << device->link_name() << ", " 160fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << device->interface_index() << ")"; 161050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart delayed_devices_.erase(device->interface_index()); 162e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov CHECK(!GetDevice(device->interface_index()).get()); 163e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov infos_[device->interface_index()].device = device; 1649abd6749e69712e9ec4ed4a54fbba243f16ae7f3Thieu Le if (metrics_->IsDeviceRegistered(device->interface_index(), 1659abd6749e69712e9ec4ed4a54fbba243f16ae7f3Thieu Le device->technology())) { 1669abd6749e69712e9ec4ed4a54fbba243f16ae7f3Thieu Le metrics_->NotifyDeviceInitialized(device->interface_index()); 1679abd6749e69712e9ec4ed4a54fbba243f16ae7f3Thieu Le } else { 1689abd6749e69712e9ec4ed4a54fbba243f16ae7f3Thieu Le metrics_->RegisterDevice(device->interface_index(), device->technology()); 1699abd6749e69712e9ec4ed4a54fbba243f16ae7f3Thieu Le } 1705086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan if (Technology::IsPrimaryConnectivityTechnology(device->technology())) { 1716f9eaa30b850ee4a22e71fd1b6ab13c873ec7110Darin Petkov manager_->RegisterDevice(device); 1726f9eaa30b850ee4a22e71fd1b6ab13c873ec7110Darin Petkov } 1736f9eaa30b850ee4a22e71fd1b6ab13c873ec7110Darin Petkov} 1746f9eaa30b850ee4a22e71fd1b6ab13c873ec7110Darin Petkov 175e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgowvoid DeviceInfo::DeregisterDevice(const DeviceRefPtr &device) { 176e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow int interface_index = device->interface_index(); 177e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow 178fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << __func__ << "(" << device->link_name() << ", " 179fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << interface_index << ")"; 180da798623389b981130cd1922f880736f1e0e36baJoshua Kroll CHECK((device->technology() == Technology::kCellular) || 181da798623389b981130cd1922f880736f1e0e36baJoshua Kroll (device->technology() == Technology::kWiMax)); 182e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow 183e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow // Release reference to the device 184e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow map<int, Info>::iterator iter = infos_.find(interface_index); 185e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow if (iter != infos_.end()) { 186fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << "Removing device from info for index: " 187fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << interface_index; 188e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow manager_->DeregisterDevice(device); 189e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow // Release the reference to the device, but maintain the mapping 190e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow // for the index. That will be cleaned up by an RTNL message. 191e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow iter->second.device = NULL; 192e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow } 193c8078a6c44d0e30b71642856ef46e0cf6c5edb46Thieu Le metrics_->DeregisterDevice(device->interface_index()); 194e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow} 195e908949fa87c32ed97073d3e79fb7f450541cb95Jason Glasgow 196ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul StewartFilePath DeviceInfo::GetDeviceInfoPath(const string &iface_name, 197ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart const string &path_name) { 198ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart return device_info_root_.Append(iface_name).Append(path_name); 199ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart} 200ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart 201ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewartbool DeviceInfo::GetDeviceInfoContents(const string &iface_name, 202ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart const string &path_name, 203ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart string *contents_out) { 204ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart return file_util::ReadFileToString(GetDeviceInfoPath(iface_name, path_name), 205ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart contents_out); 206ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart} 207ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewartbool DeviceInfo::GetDeviceInfoSymbolicLink(const string &iface_name, 2084e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan const string &path_name, 2094e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan FilePath *path_out) { 210ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart return file_util::ReadSymbolicLink(GetDeviceInfoPath(iface_name, path_name), 211ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart path_out); 212ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart} 213ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart 214fdd1607e26db6c10585f7eefa0e02546274ea8f5Paul StewartTechnology::Identifier DeviceInfo::GetDeviceTechnology( 215fdd1607e26db6c10585f7eefa0e02546274ea8f5Paul Stewart const string &iface_name) { 216ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart string type_string; 2172ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart int arp_type = ARPHRD_VOID; 218ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart if (GetDeviceInfoContents(iface_name, kInterfaceType, &type_string) && 219ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart TrimString(type_string, "\n", &type_string) && 220ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart !base::StringToInt(type_string, &arp_type)) { 221ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart arp_type = ARPHRD_VOID; 222ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart } 223ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart 2249364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewart string contents; 225ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart if (!GetDeviceInfoContents(iface_name, kInterfaceUevent, &contents)) { 226050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart LOG(INFO) << StringPrintf("%s: device %s has no uevent file", 227050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart __func__, iface_name.c_str()); 228fdd1607e26db6c10585f7eefa0e02546274ea8f5Paul Stewart return Technology::kUnknown; 2299364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewart } 230b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart 2318f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // If the "uevent" file contains the string "DEVTYPE=wlan\n" at the 2328f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // start of the file or after a newline, we can safely assume this 2338f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // is a wifi device. 2349364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewart if (contents.find(kInterfaceUeventWifiSignature) != string::npos) { 235fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) 236fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << StringPrintf("%s: device %s has wifi signature in uevent file", 237fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan __func__, iface_name.c_str()); 238ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart if (arp_type == ARPHRD_IEEE80211_RADIOTAP) { 239fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << StringPrintf("%s: wifi device %s is in monitor mode", 240fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan __func__, iface_name.c_str()); 2412001a42edf1d42ec828a9baf3157496c20fefd49Paul Stewart return Technology::kWiFiMonitor; 2422001a42edf1d42ec828a9baf3157496c20fefd49Paul Stewart } 243fdd1607e26db6c10585f7eefa0e02546274ea8f5Paul Stewart return Technology::kWifi; 2449364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewart } 245b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart 2467904d1443656999fd0a7faaf247aad05a7b3e0a6Jason Glasgow // Special case for pseudo modems which are used for testing 2477904d1443656999fd0a7faaf247aad05a7b3e0a6Jason Glasgow if (iface_name.find(kModemPseudoDeviceNamePrefix) == 0) { 2487904d1443656999fd0a7faaf247aad05a7b3e0a6Jason Glasgow SLOG(Device, 2) << StringPrintf( 2497904d1443656999fd0a7faaf247aad05a7b3e0a6Jason Glasgow "%s: device %s is a pseudo modem for testing", 2507904d1443656999fd0a7faaf247aad05a7b3e0a6Jason Glasgow __func__, iface_name.c_str()); 2517904d1443656999fd0a7faaf247aad05a7b3e0a6Jason Glasgow return Technology::kCellular; 2527904d1443656999fd0a7faaf247aad05a7b3e0a6Jason Glasgow } 2537904d1443656999fd0a7faaf247aad05a7b3e0a6Jason Glasgow 254e049cc5ad0db026c66cf448cecc48330b9e59360Christopher Wiley // Special case for pseudo ethernet devices which are used for testing. 255e049cc5ad0db026c66cf448cecc48330b9e59360Christopher Wiley if (iface_name.find(kEthernetPseudoDeviceNamePrefix) == 0) { 256e049cc5ad0db026c66cf448cecc48330b9e59360Christopher Wiley SLOG(Device, 2) << StringPrintf( 257e049cc5ad0db026c66cf448cecc48330b9e59360Christopher Wiley "%s: device %s is a virtual ethernet device for testing", 258e049cc5ad0db026c66cf448cecc48330b9e59360Christopher Wiley __func__, iface_name.c_str()); 259e049cc5ad0db026c66cf448cecc48330b9e59360Christopher Wiley return Technology::kEthernet; 260e049cc5ad0db026c66cf448cecc48330b9e59360Christopher Wiley } 261e049cc5ad0db026c66cf448cecc48330b9e59360Christopher Wiley 2629364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewart FilePath driver_path; 263ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart if (!GetDeviceInfoSymbolicLink(iface_name, kInterfaceDriver, &driver_path)) { 264fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << StringPrintf("%s: device %s has no device symlink", 265fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan __func__, iface_name.c_str()); 266ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart if (arp_type == ARPHRD_LOOPBACK) { 267fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << StringPrintf("%s: device %s is a loopback device", 268fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan __func__, iface_name.c_str()); 269e81eb700f66563cb695b6e3682f20ac5a0cdb8c0Paul Stewart return Technology::kLoopback; 270e81eb700f66563cb695b6e3682f20ac5a0cdb8c0Paul Stewart } 271ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart if (arp_type == ARPHRD_PPP) { 272ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart SLOG(Device, 2) << StringPrintf("%s: device %s is a ppp device", 273ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart __func__, iface_name.c_str()); 274ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart return Technology::kPPP; 275ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart } 276ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart string tun_flags_str; 277cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart int tun_flags = 0; 278ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart if (GetDeviceInfoContents(iface_name, kInterfaceTunFlags, &tun_flags_str) && 279ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart TrimString(tun_flags_str, "\n", &tun_flags_str) && 280ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart base::HexStringToInt(tun_flags_str, &tun_flags) && 281cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart (tun_flags & IFF_TUN)) { 282fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << StringPrintf("%s: device %s is tun device", 283fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan __func__, iface_name.c_str()); 284cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart return Technology::kTunnel; 285cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart } 286e81eb700f66563cb695b6e3682f20ac5a0cdb8c0Paul Stewart return Technology::kUnknown; 2879364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewart } 288b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart 2899364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewart string driver_name(driver_path.BaseName().value()); 2908f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // See if driver for this interface is in a list of known modem driver names. 2918f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le for (size_t modem_idx = 0; modem_idx < arraysize(kModemDrivers); 2928f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le ++modem_idx) { 2939364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewart if (driver_name == kModemDrivers[modem_idx]) { 294fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) 295fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << StringPrintf("%s: device %s is matched with modem driver %s", 296fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan __func__, iface_name.c_str(), driver_name.c_str()); 2979364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewart return Technology::kCellular; 2989364c4c9a1e1f4bbb59c8d32ac97c928505fc8cbPaul Stewart } 299b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart } 3000af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 3014e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan if (driver_name == kDriverGdmWiMax) { 3024e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan SLOG(Device, 2) << StringPrintf("%s: device %s is a WiMAX device", 3034e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan __func__, iface_name.c_str()); 3044e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan return Technology::kWiMax; 3054e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan } 3064e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan 3074eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan // For cdc_ether / cdc_ncm devices, make sure it's a modem because this driver 3088f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // can be used for other ethernet devices. 3094eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan if (driver_name == kDriverCdcEther || driver_name == kDriverCdcNcm) { 3104eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan if (IsCdcEthernetModemDevice(iface_name)) { 3114eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan LOG(INFO) << StringPrintf("%s: device %s is a %s modem device", __func__, 31235ec8408d8b40d74693edc32495b392a525dc238mukesh agrawal iface_name.c_str(), driver_name.c_str()); 313050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart return Technology::kCellular; 314050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart } 3154eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan SLOG(Device, 2) << StringPrintf("%s: device %s is a %s device", __func__, 31635ec8408d8b40d74693edc32495b392a525dc238mukesh agrawal iface_name.c_str(), driver_name.c_str()); 317050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart return Technology::kCDCEthernet; 3188f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le } 319abc5403270e26fa898181301911a905758f8d758Jason Glasgow 32093a29ed675f5c75250d09e192d72fe6804c10111mukesh agrawal // Special case for the virtio driver, used when run under KVM. See also 32193a29ed675f5c75250d09e192d72fe6804c10111mukesh agrawal // the comment in VirtioEthernet::Start. 32293a29ed675f5c75250d09e192d72fe6804c10111mukesh agrawal if (driver_name == kDriverVirtioNet) { 323fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << StringPrintf("%s: device %s is virtio ethernet", 324fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan __func__, iface_name.c_str()); 32593a29ed675f5c75250d09e192d72fe6804c10111mukesh agrawal return Technology::kVirtioEthernet; 32693a29ed675f5c75250d09e192d72fe6804c10111mukesh agrawal } 32793a29ed675f5c75250d09e192d72fe6804c10111mukesh agrawal 328fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << StringPrintf("%s: device %s, with driver %s, " 329fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan "is defaulted to type ethernet", 330fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan __func__, iface_name.c_str(), 331fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan driver_name.c_str()); 332fdd1607e26db6c10585f7eefa0e02546274ea8f5Paul Stewart return Technology::kEthernet; 333b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart} 334b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart 3354eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chanbool DeviceInfo::IsCdcEthernetModemDevice(const std::string &iface_name) { 3364eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan // A cdc_ether / cdc_ncm device is a modem device if it also exposes tty 3374eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan // interfaces. To determine this, we look for the existence of the tty 3384eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan // interface in the USB device sysfs tree. 3398f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // 3404eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan // A typical sysfs dir hierarchy for a cdc_ether / cdc_ncm modem USB device is 3414eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan // as follows: 3428f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // 3438f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-2 3448f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // 1-2:1.0 3458f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // tty 3468f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // ttyACM0 3478f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // 1-2:1.1 3488f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // net 3498f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // usb0 3508f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // 1-2:1.2 3518f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // tty 3528f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // ttyACM1 3538f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // ... 3548f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // 3558f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // /sys/class/net/usb0/device symlinks to 3568f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-2/1-2:1.1 357b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le // 358b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le // Note that some modem devices have the tty directory one level deeper 359b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le // (eg. E362), so the device tree for the tty interface is: 360b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le // /sys/devices/pci0000:00/0000:00:1d.7/usb/1-2/1-2:1.0/ttyUSB0/tty/ttyUSB0 3618f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le 362ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart FilePath device_file = GetDeviceInfoPath(iface_name, kInterfaceDevice); 3638f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le FilePath device_path; 3648f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le if (!file_util::ReadSymbolicLink(device_file, &device_path)) { 365fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << StringPrintf("%s: device %s has no device symlink", 366fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan __func__, iface_name.c_str()); 3678f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le return false; 3688f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le } 3698f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le if (!device_path.IsAbsolute()) { 3708f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le device_path = device_file.DirName().Append(device_path); 3718f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le file_util::AbsolutePath(&device_path); 3728f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le } 3738f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le 3748f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // Look for tty interface by enumerating all directories under the parent 375b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le // USB device and see if there's a subdirectory "tty" inside. In other 376b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le // words, using the example dir hierarchy above, find 377b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le // /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-2/.../tty. 3788f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le // If this exists, then this is a modem device. 379b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le return HasSubdir(device_path.DirName(), FilePath("tty")); 3808f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le} 3818f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le 3828f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le// static 383b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Lebool DeviceInfo::HasSubdir(const FilePath &base_dir, const FilePath &subdir) { 384b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le file_util::FileEnumerator::FileType type = 385b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le static_cast<file_util::FileEnumerator::FileType>( 386b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le file_util::FileEnumerator::DIRECTORIES | 387b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le file_util::FileEnumerator::SHOW_SYM_LINKS); 388b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le file_util::FileEnumerator dir_enum(base_dir, true, type); 3898f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le for (FilePath curr_dir = dir_enum.Next(); !curr_dir.empty(); 3908f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le curr_dir = dir_enum.Next()) { 391b27beee2e85a1ad3d68a1218c8c4fef4214626e8Thieu Le if (curr_dir.BaseName() == subdir) 3928f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le return true; 3938f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le } 3948f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le return false; 3958f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le} 3968f1c835d879f82261a08257eb6f9677e6be51fdaThieu Le 3978c116a90d3a3536430b808b15e73275060918434Paul StewartDeviceRefPtr DeviceInfo::CreateDevice(const string &link_name, 3988c116a90d3a3536430b808b15e73275060918434Paul Stewart const string &address, 3998c116a90d3a3536430b808b15e73275060918434Paul Stewart int interface_index, 4008c116a90d3a3536430b808b15e73275060918434Paul Stewart Technology::Identifier technology) { 4018c116a90d3a3536430b808b15e73275060918434Paul Stewart DeviceRefPtr device; 402050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart delayed_devices_.erase(interface_index); 4035086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan infos_[interface_index].technology = technology; 4048c116a90d3a3536430b808b15e73275060918434Paul Stewart 4058c116a90d3a3536430b808b15e73275060918434Paul Stewart switch (technology) { 4068c116a90d3a3536430b808b15e73275060918434Paul Stewart case Technology::kCellular: 4078c116a90d3a3536430b808b15e73275060918434Paul Stewart // Cellular devices are managed by ModemInfo. 4088c116a90d3a3536430b808b15e73275060918434Paul Stewart SLOG(Device, 2) << "Cellular link " << link_name 4098c116a90d3a3536430b808b15e73275060918434Paul Stewart << " at index " << interface_index 4108c116a90d3a3536430b808b15e73275060918434Paul Stewart << " -- notifying ModemInfo."; 411bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain 412bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain // The MAC address provided by RTNL is not reliable for Gobi 2K modems. 4134b28586abe9edee0179ea7672ac5ea9d9dc13ac7Ben Chan // Clear it here, and it will be fetched from the kernel in 4144b28586abe9edee0179ea7672ac5ea9d9dc13ac7Ben Chan // GetMACAddress(). 415bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain infos_[interface_index].mac_address.Clear(); 4168c116a90d3a3536430b808b15e73275060918434Paul Stewart manager_->modem_info()->OnDeviceInfoAvailable(link_name); 4178c116a90d3a3536430b808b15e73275060918434Paul Stewart break; 4188c116a90d3a3536430b808b15e73275060918434Paul Stewart case Technology::kEthernet: 4198c116a90d3a3536430b808b15e73275060918434Paul Stewart device = new Ethernet(control_interface_, dispatcher_, metrics_, 4208c116a90d3a3536430b808b15e73275060918434Paul Stewart manager_, link_name, address, interface_index); 4218c116a90d3a3536430b808b15e73275060918434Paul Stewart device->EnableIPv6Privacy(); 4228c116a90d3a3536430b808b15e73275060918434Paul Stewart break; 4238c116a90d3a3536430b808b15e73275060918434Paul Stewart case Technology::kVirtioEthernet: 4248c116a90d3a3536430b808b15e73275060918434Paul Stewart device = new VirtioEthernet(control_interface_, dispatcher_, metrics_, 4258c116a90d3a3536430b808b15e73275060918434Paul Stewart manager_, link_name, address, 4268c116a90d3a3536430b808b15e73275060918434Paul Stewart interface_index); 4278c116a90d3a3536430b808b15e73275060918434Paul Stewart device->EnableIPv6Privacy(); 4288c116a90d3a3536430b808b15e73275060918434Paul Stewart break; 4298c116a90d3a3536430b808b15e73275060918434Paul Stewart case Technology::kWifi: 4302ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart // Defer creating this device until we get information about the 4312ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart // type of WiFi interface. 4322ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart GetWiFiInterfaceInfo(interface_index); 4338c116a90d3a3536430b808b15e73275060918434Paul Stewart break; 4344e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan case Technology::kWiMax: 435520eb176ecc8548a9eb6a340fb46c06618ee8308Ben Chan#if defined(DISABLE_WIMAX) 436520eb176ecc8548a9eb6a340fb46c06618ee8308Ben Chan LOG(WARNING) << "WiMax support is not implemented. Ignore WiMax link " 437520eb176ecc8548a9eb6a340fb46c06618ee8308Ben Chan << link_name << " at index " << interface_index << "."; 438520eb176ecc8548a9eb6a340fb46c06618ee8308Ben Chan return NULL; 439520eb176ecc8548a9eb6a340fb46c06618ee8308Ben Chan#else 440e4b270274cba2a1976c7be6c733bd899e009c1d1Darin Petkov // WiMax devices are managed by WiMaxProvider. 441e4b270274cba2a1976c7be6c733bd899e009c1d1Darin Petkov SLOG(Device, 2) << "WiMax link " << link_name 442e4b270274cba2a1976c7be6c733bd899e009c1d1Darin Petkov << " at index " << interface_index 443e4b270274cba2a1976c7be6c733bd899e009c1d1Darin Petkov << " -- notifying WiMaxProvider."; 4444b28586abe9edee0179ea7672ac5ea9d9dc13ac7Ben Chan // The MAC address provided by RTNL may not be the final value as the 4454b28586abe9edee0179ea7672ac5ea9d9dc13ac7Ben Chan // WiMAX device may change the address after initialization. Clear it 4464b28586abe9edee0179ea7672ac5ea9d9dc13ac7Ben Chan // here, and it will be fetched from the kernel when 4474b28586abe9edee0179ea7672ac5ea9d9dc13ac7Ben Chan // WiMaxProvider::CreateDevice() is called after the WiMAX device DBus 4484b28586abe9edee0179ea7672ac5ea9d9dc13ac7Ben Chan // object is created by the WiMAX manager daemon. 4494b28586abe9edee0179ea7672ac5ea9d9dc13ac7Ben Chan infos_[interface_index].mac_address.Clear(); 450e4b270274cba2a1976c7be6c733bd899e009c1d1Darin Petkov manager_->wimax_provider()->OnDeviceInfoAvailable(link_name); 4514e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan break; 452520eb176ecc8548a9eb6a340fb46c06618ee8308Ben Chan#endif // DISABLE_WIMAX 4538c116a90d3a3536430b808b15e73275060918434Paul Stewart case Technology::kPPP: 4548c116a90d3a3536430b808b15e73275060918434Paul Stewart case Technology::kTunnel: 4558c116a90d3a3536430b808b15e73275060918434Paul Stewart // Tunnel and PPP devices are managed by the VPN code (PPP for 4568c116a90d3a3536430b808b15e73275060918434Paul Stewart // l2tpipsec). Notify the VPN Provider of the interface's presence. 4578c116a90d3a3536430b808b15e73275060918434Paul Stewart // Since CreateDevice is only called once in the lifetime of an 4588c116a90d3a3536430b808b15e73275060918434Paul Stewart // interface index, this notification will only occur the first 4598c116a90d3a3536430b808b15e73275060918434Paul Stewart // time the device is seen. 4608c116a90d3a3536430b808b15e73275060918434Paul Stewart SLOG(Device, 2) << "Tunnel / PPP link " << link_name 4618c116a90d3a3536430b808b15e73275060918434Paul Stewart << " at index " << interface_index 4628c116a90d3a3536430b808b15e73275060918434Paul Stewart << " -- notifying VPNProvider."; 4638c116a90d3a3536430b808b15e73275060918434Paul Stewart if (!manager_->vpn_provider()->OnDeviceInfoAvailable(link_name, 4648c116a90d3a3536430b808b15e73275060918434Paul Stewart interface_index) && 4658c116a90d3a3536430b808b15e73275060918434Paul Stewart technology == Technology::kTunnel) { 4668c116a90d3a3536430b808b15e73275060918434Paul Stewart // If VPN does not know anything about this tunnel, it is probably 4678c116a90d3a3536430b808b15e73275060918434Paul Stewart // left over from a previous instance and should not exist. 4688c116a90d3a3536430b808b15e73275060918434Paul Stewart SLOG(Device, 2) << "Tunnel link is unused. Deleting."; 4698c116a90d3a3536430b808b15e73275060918434Paul Stewart DeleteInterface(interface_index); 4708c116a90d3a3536430b808b15e73275060918434Paul Stewart } 4718c116a90d3a3536430b808b15e73275060918434Paul Stewart break; 4728c116a90d3a3536430b808b15e73275060918434Paul Stewart case Technology::kLoopback: 4738c116a90d3a3536430b808b15e73275060918434Paul Stewart // Loopback devices are largely ignored, but we should make sure the 4748c116a90d3a3536430b808b15e73275060918434Paul Stewart // link is enabled. 4758c116a90d3a3536430b808b15e73275060918434Paul Stewart SLOG(Device, 2) << "Bringing up loopback device " << link_name 4768c116a90d3a3536430b808b15e73275060918434Paul Stewart << " at index " << interface_index; 4778c116a90d3a3536430b808b15e73275060918434Paul Stewart rtnl_handler_->SetInterfaceFlags(interface_index, IFF_UP, IFF_UP); 4788c116a90d3a3536430b808b15e73275060918434Paul Stewart return NULL; 479050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart case Technology::kCDCEthernet: 4804eb4ddf7f26286e6b4d112f014718336559dfb7aBen Chan // CDCEthernet devices are of indeterminate type when they are 481050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart // initially created. Some time later, tty devices may or may 482050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart // not appear under the same USB device root, which will identify 483050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart // it as a modem. Alternatively, ModemManager may discover the 484050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart // device and create and register a Cellular device. In either 485050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart // case, we should delay creating a Device until we can make a 486050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart // better determination of what type this Device should be. 487050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart LOG(INFO) << "Delaying creation of device for " << link_name 488050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart << " at index " << interface_index; 489050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart DelayDeviceCreation(interface_index); 490050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart return NULL; 4918c116a90d3a3536430b808b15e73275060918434Paul Stewart default: 4928c116a90d3a3536430b808b15e73275060918434Paul Stewart // We will not manage this device in shill. Do not create a device 4938c116a90d3a3536430b808b15e73275060918434Paul Stewart // object or do anything to change its state. We create a stub object 4948c116a90d3a3536430b808b15e73275060918434Paul Stewart // which is useful for testing. 4958c116a90d3a3536430b808b15e73275060918434Paul Stewart return new DeviceStub(control_interface_, dispatcher_, metrics_, 4968c116a90d3a3536430b808b15e73275060918434Paul Stewart manager_, link_name, address, interface_index, 4974e64d2d72eed1947ab1d15e6ce25a47c37a9e10cBen Chan technology); 4988c116a90d3a3536430b808b15e73275060918434Paul Stewart } 4998c116a90d3a3536430b808b15e73275060918434Paul Stewart 5008c116a90d3a3536430b808b15e73275060918434Paul Stewart // Reset the routing table and addresses. 5018c116a90d3a3536430b808b15e73275060918434Paul Stewart routing_table_->FlushRoutes(interface_index); 5028c116a90d3a3536430b808b15e73275060918434Paul Stewart FlushAddresses(interface_index); 5038c116a90d3a3536430b808b15e73275060918434Paul Stewart 5045086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan manager_->UpdateUninitializedTechnologies(); 5055086b9744e8330e7f3bd8ab91fe20b53dda28a1cBen Chan 5068c116a90d3a3536430b808b15e73275060918434Paul Stewart return device; 5078c116a90d3a3536430b808b15e73275060918434Paul Stewart} 5088c116a90d3a3536430b808b15e73275060918434Paul Stewart 5092aa9707f114ab8166f45df5726bf05278df2aef6Chris Masonevoid DeviceInfo::AddLinkMsgHandler(const RTNLMessage &msg) { 5109a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart DCHECK(msg.type() == RTNLMessage::kTypeLink && 5119a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart msg.mode() == RTNLMessage::kModeAdd); 5122aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone int dev_index = msg.interface_index(); 513fdd1607e26db6c10585f7eefa0e02546274ea8f5Paul Stewart Technology::Identifier technology = Technology::kUnknown; 514e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov unsigned int flags = msg.link_status().flags; 515e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov unsigned int change = msg.link_status().change; 5168c116a90d3a3536430b808b15e73275060918434Paul Stewart bool new_device = 5178c116a90d3a3536430b808b15e73275060918434Paul Stewart !ContainsKey(infos_, dev_index) || infos_[dev_index].has_addresses_only; 518fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << __func__ << "(index=" << dev_index 519fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << std::showbase << std::hex 520fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << ", flags=" << flags << ", change=" << change << ")" 521fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << std::dec << std::noshowbase 522fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << ", new_device=" << new_device; 5238c116a90d3a3536430b808b15e73275060918434Paul Stewart infos_[dev_index].has_addresses_only = false; 524e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov infos_[dev_index].flags = flags; 525f1ce5d27adbfcaf9c46e650252b46e02b0d8addaPaul Stewart 5261ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart RetrieveLinkStatistics(dev_index, msg); 5271ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart 5286f9eaa30b850ee4a22e71fd1b6ab13c873ec7110Darin Petkov DeviceRefPtr device = GetDevice(dev_index); 5298c116a90d3a3536430b808b15e73275060918434Paul Stewart if (new_device) { 5308c116a90d3a3536430b808b15e73275060918434Paul Stewart CHECK(!device); 5312aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone if (!msg.HasAttribute(IFLA_IFNAME)) { 5322aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone LOG(ERROR) << "Add Link message does not have IFLA_IFNAME!"; 5332aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone return; 534b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart } 5352aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone ByteString b(msg.GetAttribute(IFLA_IFNAME)); 5362aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone string link_name(reinterpret_cast<const char*>(b.GetConstData())); 537fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << "add link index " << dev_index << " name " << link_name; 538f8046b8f975417255baf5cc7cdd025c63aa2f918Darin Petkov infos_[dev_index].name = link_name; 539f8046b8f975417255baf5cc7cdd025c63aa2f918Darin Petkov indices_[link_name] = dev_index; 540a3c56f9f49e6c72ff55cc1224cccd60538e9b788Paul Stewart 5412aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone if (!link_name.empty()) { 5428f317b600a218afe05f2d73c59204bb98269a950mukesh agrawal if (ContainsKey(black_list_, link_name)) { 543fdd1607e26db6c10585f7eefa0e02546274ea8f5Paul Stewart technology = Technology::kBlacklisted; 5448f317b600a218afe05f2d73c59204bb98269a950mukesh agrawal } else { 5458f317b600a218afe05f2d73c59204bb98269a950mukesh agrawal technology = GetDeviceTechnology(link_name); 5468f317b600a218afe05f2d73c59204bb98269a950mukesh agrawal } 547633ac6f0d56a62f8fd21ba7d9a15818fe080fb2fDarin Petkov } 548cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart string address; 549cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart if (msg.HasAttribute(IFLA_ADDRESS)) { 550cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart infos_[dev_index].mac_address = msg.GetAttribute(IFLA_ADDRESS); 551cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart address = StringToLowerASCII(infos_[dev_index].mac_address.HexEncode()); 552fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << "link index " << dev_index << " address " 553fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << infos_[dev_index].mac_address.HexEncode(); 554ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart } else if (technology != Technology::kTunnel && 555ca876ee6b11b38a3df7a8ab03efe9ed0bcab41d8Paul Stewart technology != Technology::kPPP) { 5566813e7624f1047872eeceec14db45373e30e268emukesh agrawal LOG(ERROR) << "Add Link message for link '" << link_name 5576813e7624f1047872eeceec14db45373e30e268emukesh agrawal << "' does not have IFLA_ADDRESS!"; 558cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart return; 559cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart } 560c8078a6c44d0e30b71642856ef46e0cf6c5edb46Thieu Le metrics_->RegisterDevice(dev_index, technology); 5618c116a90d3a3536430b808b15e73275060918434Paul Stewart device = CreateDevice(link_name, address, dev_index, technology); 5628c116a90d3a3536430b808b15e73275060918434Paul Stewart if (device) { 5638c116a90d3a3536430b808b15e73275060918434Paul Stewart RegisterDevice(device); 564b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart } 565b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart } 5668c116a90d3a3536430b808b15e73275060918434Paul Stewart if (device) { 5678c116a90d3a3536430b808b15e73275060918434Paul Stewart device->LinkEvent(flags, change); 5688c116a90d3a3536430b808b15e73275060918434Paul Stewart } 569b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart} 570b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart 5712aa9707f114ab8166f45df5726bf05278df2aef6Chris Masonevoid DeviceInfo::DelLinkMsgHandler(const RTNLMessage &msg) { 572fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << __func__ << "(index=" << msg.interface_index() << ")"; 57347009f8d7a6fbc257a1bb1288a01405d034bd13fmukesh agrawal 5749a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart DCHECK(msg.type() == RTNLMessage::kTypeLink && 5759a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart msg.mode() == RTNLMessage::kModeDelete); 576fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << __func__ << "(index=" << msg.interface_index() 577fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << std::showbase << std::hex 578fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << ", flags=" << msg.link_status().flags 579fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << ", change=" << msg.link_status().change << ")"; 580e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov RemoveInfo(msg.interface_index()); 581e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov} 582e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov 583e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin PetkovDeviceRefPtr DeviceInfo::GetDevice(int interface_index) const { 584e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkov const Info *info = GetInfo(interface_index); 585e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov return info ? info->device : NULL; 58667d8ecfd1d6ff5ea75b9d5c7167d9c16891d3d4bDarin Petkov} 587b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart 588f8046b8f975417255baf5cc7cdd025c63aa2f918Darin Petkovint DeviceInfo::GetIndex(const string &interface_name) const { 589f8046b8f975417255baf5cc7cdd025c63aa2f918Darin Petkov map<string, int>::const_iterator it = indices_.find(interface_name); 590f8046b8f975417255baf5cc7cdd025c63aa2f918Darin Petkov return it == indices_.end() ? -1 : it->second; 591f8046b8f975417255baf5cc7cdd025c63aa2f918Darin Petkov} 592f8046b8f975417255baf5cc7cdd025c63aa2f918Darin Petkov 5933285296e6624fa0b1b10699f2fa6466d4be10742Paul Stewartbool DeviceInfo::GetMACAddress(int interface_index, ByteString *address) const { 594e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkov const Info *info = GetInfo(interface_index); 595e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkov if (!info) { 596e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkov return false; 597e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkov } 598bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain // |mac_address| from RTNL is not used for some devices, in which case it will 599bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain // be empty here. 600bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain if (!info->mac_address.IsEmpty()) { 601bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain *address = info->mac_address; 602bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain return true; 603bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain } 604bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain 605bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain // Ask the kernel for the MAC address. 606bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain *address = GetMACAddressFromKernel(interface_index); 607bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain return !address->IsEmpty(); 608bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain} 609bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain 610bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary MorainByteString DeviceInfo::GetMACAddressFromKernel(int interface_index) const { 6114178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain const Info *info = GetInfo(interface_index); 6124178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain if (!info) { 6134178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain return ByteString(); 6144178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain } 6154178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain 6164178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain const int fd = sockets_->Socket(PF_INET, SOCK_DGRAM, 0); 617bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain if (fd < 0) { 618bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain LOG(ERROR) << __func__ << ": Unable to open socket: " << fd; 6194178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain return ByteString(); 620bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain } 6214178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain 6224178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain ScopedSocketCloser socket_closer(sockets_.get(), fd); 623bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain struct ifreq ifr; 624bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain memset(&ifr, 0, sizeof(ifr)); 625bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain ifr.ifr_ifindex = interface_index; 6264178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain strcpy(ifr.ifr_ifrn.ifrn_name, info->name.c_str()); 6274178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain int err = sockets_->Ioctl(fd, SIOCGIFHWADDR, &ifr); 628bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain if (err < 0) { 629bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain LOG(ERROR) << __func__ << ": Unable to read MAC address: " << errno; 6304178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain return ByteString(); 631bf74a67a6dec2f438e6826a3f39c4e1100d1f016Gary Morain } 6324178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain 6334178023c4d627410777bdc259bfc7a31f2a4b8e9Gary Morain return ByteString(ifr.ifr_hwaddr.sa_data, IFHWADDRLEN); 634e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkov} 635e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkov 6366950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewartbool DeviceInfo::GetMACAddressOfPeer(int interface_index, 6376950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart const IPAddress &peer, 6386950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart ByteString *mac_address) const { 6396950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart const Info *info = GetInfo(interface_index); 6406950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart if (!info || !peer.IsValid()) { 6416950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart return false; 6426950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart } 6436950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6446950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart if (peer.family() != IPAddress::kFamilyIPv4) { 6456950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart NOTIMPLEMENTED() << ": only implemented for IPv4"; 6466950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart return false; 6476950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart } 6486950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6496950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart const int fd = sockets_->Socket(PF_INET, SOCK_DGRAM, 0); 6506950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart if (fd < 0) { 6516950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart LOG(ERROR) << __func__ << ": Unable to open socket: " << fd; 6526950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart return false; 6536950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart } 6546950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6556950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart ScopedSocketCloser socket_closer(sockets_.get(), fd); 6566950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart struct arpreq areq; 6576950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart memset(&areq, 0, sizeof(areq)); 6586950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6596950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart strncpy(areq.arp_dev, info->name.c_str(), sizeof(areq.arp_dev) - 1); 6606950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart areq.arp_dev[sizeof(areq.arp_dev) - 1] = '\0'; 6616950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6626950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart struct sockaddr_in *protocol_address = 6636950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart reinterpret_cast<struct sockaddr_in *>(&areq.arp_pa); 6646950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart protocol_address->sin_family = AF_INET; 6656950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart CHECK_EQ(sizeof(protocol_address->sin_addr.s_addr), peer.GetLength()); 6666950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart memcpy(&protocol_address->sin_addr.s_addr, peer.address().GetConstData(), 6676950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart sizeof(protocol_address->sin_addr.s_addr)); 6686950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6696950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart struct sockaddr_in *hardware_address = 6706950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart reinterpret_cast<struct sockaddr_in *>(&areq.arp_ha); 6716950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart hardware_address->sin_family = ARPHRD_ETHER; 6726950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6736950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart int err = sockets_->Ioctl(fd, SIOCGARP, &areq); 6746950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart if (err < 0) { 6756950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart LOG(ERROR) << __func__ << ": Unable to perform ARP lookup: " << errno; 6766950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart return false; 6776950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart } 6786950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6796950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart ByteString peer_address(areq.arp_ha.sa_data, IFHWADDRLEN); 6806950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6816950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart if (peer_address.IsZero()) { 6826950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart LOG(INFO) << __func__ << ": ARP lookup is still in progress"; 6836950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart return false; 6846950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart } 6856950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6866950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart CHECK(mac_address); 6876950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart *mac_address = peer_address; 6886950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart return true; 6896950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart} 6906950ba51e9a35b91687103fdc451e1539cdfb35dPaul Stewart 6919a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewartbool DeviceInfo::GetAddresses(int interface_index, 6929a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart vector<AddressData> *addresses) const { 6939a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart const Info *info = GetInfo(interface_index); 6949a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart if (!info) { 6959a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart return false; 6969a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } 6979a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart *addresses = info->ip_addresses; 6989a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart return true; 6999a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart} 7009a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart 7019a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewartvoid DeviceInfo::FlushAddresses(int interface_index) const { 702fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << __func__ << "(" << interface_index << ")"; 7039a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart const Info *info = GetInfo(interface_index); 7049a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart if (!info) { 7059a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart return; 7069a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } 7079a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart const vector<AddressData> &addresses = info->ip_addresses; 7089a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart vector<AddressData>::const_iterator iter; 7099a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart for (iter = addresses.begin(); iter != addresses.end(); ++iter) { 7107355ce1937c504d836a303ac809bd436272212b3Paul Stewart if (iter->address.family() == IPAddress::kFamilyIPv4 || 7119a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart (iter->scope == RT_SCOPE_UNIVERSE && 7129a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart (iter->flags & ~IFA_F_TEMPORARY) == 0)) { 7138c116a90d3a3536430b808b15e73275060918434Paul Stewart SLOG(Device, 2) << __func__ << ": removing ip address " 7148c116a90d3a3536430b808b15e73275060918434Paul Stewart << iter->address.ToString() 7158c116a90d3a3536430b808b15e73275060918434Paul Stewart << " from interface " << interface_index; 7169a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart rtnl_handler_->RemoveInterfaceAddress(interface_index, iter->address); 7179a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } 7189a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } 7199a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart} 7209a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart 72105a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewartbool DeviceInfo::HasOtherAddress( 72205a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart int interface_index, const IPAddress &this_address) const { 72305a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart SLOG(Device, 3) << __func__ << "(" << interface_index << ")"; 72405a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart const Info *info = GetInfo(interface_index); 72505a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart if (!info) { 72605a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart return false; 72705a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart } 72805a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart const vector<AddressData> &addresses = info->ip_addresses; 72905a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart vector<AddressData>::const_iterator iter; 73005a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart bool has_other_address = false; 73105a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart bool has_this_address = false; 73205a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart for (iter = addresses.begin(); iter != addresses.end(); ++iter) { 73305a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart if (iter->address.family() != this_address.family()) { 73405a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart continue; 73505a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart } 73605a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart if (iter->address.address().Equals(this_address.address())) { 73705a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart has_this_address = true; 73805a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart } else if (this_address.family() == IPAddress::kFamilyIPv4) { 73905a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart has_other_address = true; 74005a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart } else if ((iter->scope == RT_SCOPE_UNIVERSE && 74105a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart (iter->flags & IFA_F_TEMPORARY) == 0)) { 74205a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart has_other_address = true; 74305a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart } 74405a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart } 74505a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart return has_other_address && !has_this_address; 74605a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart} 74705a42c23f1d37daa8689fc4240034e62ed89f8fcPaul Stewart 748e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkovbool DeviceInfo::GetFlags(int interface_index, unsigned int *flags) const { 749e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkov const Info *info = GetInfo(interface_index); 750e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov if (!info) { 751e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov return false; 752e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov } 753e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov *flags = info->flags; 754e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov return true; 755e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov} 756e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov 7571ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewartbool DeviceInfo::GetByteCounts(int interface_index, 7581ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart uint64 *rx_bytes, 7591ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart uint64 *tx_bytes) const { 7601ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart const Info *info = GetInfo(interface_index); 7611ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart if (!info) { 7621ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart return false; 7631ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart } 7641ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart *rx_bytes = info->rx_bytes; 7651ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart *tx_bytes = info->tx_bytes; 7661ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart return true; 7671ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart} 7681ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart 769ca6abd4635507fa5b8f4b8819a37819fb560c464Paul Stewartbool DeviceInfo::CreateTunnelInterface(string *interface_name) const { 770cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart int fd = HANDLE_EINTR(open(kTunDeviceName, O_RDWR)); 771cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart if (fd < 0) { 772cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart PLOG(ERROR) << "failed to open " << kTunDeviceName; 773cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart return false; 774cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart } 775cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart file_util::ScopedFD scoped_fd(&fd); 776cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart 777cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart struct ifreq ifr; 778cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart memset(&ifr, 0, sizeof(ifr)); 779cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart ifr.ifr_flags = IFF_TUN | IFF_NO_PI; 780cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart if (HANDLE_EINTR(ioctl(fd, TUNSETIFF, &ifr))) { 781cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart PLOG(ERROR) << "failed to create tunnel interface"; 782cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart return false; 783cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart } 784cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart 785cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart if (HANDLE_EINTR(ioctl(fd, TUNSETPERSIST, 1))) { 786cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart PLOG(ERROR) << "failed to set tunnel interface to be persistent"; 787cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart return false; 788cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart } 789cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart 790cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart *interface_name = string(ifr.ifr_name); 791cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart 792cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart return true; 793cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart} 794cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart 795ca6abd4635507fa5b8f4b8819a37819fb560c464Paul Stewartbool DeviceInfo::DeleteInterface(int interface_index) const { 796cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart return rtnl_handler_->RemoveInterface(interface_index); 797cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart} 798cba0f7f604b28b1fe85a16b16b0731860dfff753Paul Stewart 799e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkovconst DeviceInfo::Info *DeviceInfo::GetInfo(int interface_index) const { 800e3e1cfaadc69ea67db55f11e55f404b11a70e354Darin Petkov map<int, Info>::const_iterator iter = infos_.find(interface_index); 801e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov if (iter == infos_.end()) { 802e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov return NULL; 803e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov } 804e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov return &iter->second; 805e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov} 806e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov 807e6193c042652831cac90c3bbf2233877754b1eefDarin Petkovvoid DeviceInfo::RemoveInfo(int interface_index) { 808e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov map<int, Info>::iterator iter = infos_.find(interface_index); 809e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov if (iter != infos_.end()) { 810fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << "Removing info for device index: " << interface_index; 811e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov if (iter->second.device.get()) { 812e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov manager_->DeregisterDevice(iter->second.device); 813e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov } 814f8046b8f975417255baf5cc7cdd025c63aa2f918Darin Petkov indices_.erase(iter->second.name); 815e6193c042652831cac90c3bbf2233877754b1eefDarin Petkov infos_.erase(iter); 816050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart delayed_devices_.erase(interface_index); 81747009f8d7a6fbc257a1bb1288a01405d034bd13fmukesh agrawal } else { 818fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << __func__ << ": Unknown device index: " 819fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan << interface_index; 820b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart } 8210af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart} 8220af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 8232aa9707f114ab8166f45df5726bf05278df2aef6Chris Masonevoid DeviceInfo::LinkMsgHandler(const RTNLMessage &msg) { 8249a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart DCHECK(msg.type() == RTNLMessage::kTypeLink); 8259a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart if (msg.mode() == RTNLMessage::kModeAdd) { 8262aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone AddLinkMsgHandler(msg); 8279a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } else if (msg.mode() == RTNLMessage::kModeDelete) { 8282aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone DelLinkMsgHandler(msg); 8292aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone } else { 8302aa9707f114ab8166f45df5726bf05278df2aef6Chris Masone NOTREACHED(); 831b50f0b9837c398b8edd5dc568eb01bdcff9a4d65Paul Stewart } 8320af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart} 8330af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart 8349a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewartvoid DeviceInfo::AddressMsgHandler(const RTNLMessage &msg) { 835fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << __func__; 8369a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart DCHECK(msg.type() == RTNLMessage::kTypeAddress); 8379a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart int interface_index = msg.interface_index(); 8389a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart if (!ContainsKey(infos_, interface_index)) { 8398c116a90d3a3536430b808b15e73275060918434Paul Stewart SLOG(Device, 2) << "Got advance address information for unknown index " 8408c116a90d3a3536430b808b15e73275060918434Paul Stewart << interface_index; 8418c116a90d3a3536430b808b15e73275060918434Paul Stewart infos_[interface_index].has_addresses_only = true; 8429a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } 8439a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart const RTNLMessage::AddressStatus &status = msg.address_status(); 8449a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart IPAddress address(msg.family(), 845682c5d4738cbdffc1ec88573a4a339840cc4fb25Ben Chan msg.HasAttribute(IFA_LOCAL) ? 846682c5d4738cbdffc1ec88573a4a339840cc4fb25Ben Chan msg.GetAttribute(IFA_LOCAL) : msg.GetAttribute(IFA_ADDRESS), 8479a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart status.prefix_len); 8489a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart 849682c5d4738cbdffc1ec88573a4a339840cc4fb25Ben Chan SLOG_IF(Device, 2, msg.HasAttribute(IFA_LOCAL)) 850682c5d4738cbdffc1ec88573a4a339840cc4fb25Ben Chan << "Found local address attribute for interface " << interface_index; 851682c5d4738cbdffc1ec88573a4a339840cc4fb25Ben Chan 8529a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart vector<AddressData> &address_list = infos_[interface_index].ip_addresses; 8539a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart vector<AddressData>::iterator iter; 8549a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart for (iter = address_list.begin(); iter != address_list.end(); ++iter) { 8559a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart if (address.Equals(iter->address)) { 8569a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart break; 8579a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } 8589a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } 8599a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart if (iter != address_list.end()) { 8609a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart if (msg.mode() == RTNLMessage::kModeDelete) { 861fad4a0b7e55dd82d3815ee96862b6e546727eb6eBen Chan SLOG(Device, 2) << "Delete address for interface " << interface_index; 8629a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart address_list.erase(iter); 8639a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } else { 8649a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart iter->flags = status.flags; 8659a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart iter->scope = status.scope; 8669a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } 8679a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } else if (msg.mode() == RTNLMessage::kModeAdd) { 8689a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart address_list.push_back(AddressData(address, status.flags, status.scope)); 8698c116a90d3a3536430b808b15e73275060918434Paul Stewart SLOG(Device, 2) << "Add address " << address.ToString() 8708c116a90d3a3536430b808b15e73275060918434Paul Stewart << " for interface " << interface_index; 8719a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart } 8729a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart} 8739a908080fc2a72dbf06f995b878fc8a3693b725aPaul Stewart 874050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewartvoid DeviceInfo::DelayDeviceCreation(int interface_index) { 875050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart delayed_devices_.insert(interface_index); 876050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart delayed_devices_callback_.Reset( 877050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart Bind(&DeviceInfo::DelayedDeviceCreationTask, AsWeakPtr())); 878050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart dispatcher_->PostDelayedTask(delayed_devices_callback_.callback(), 879050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart kDelayedDeviceCreationSeconds * 1000); 880050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart} 881050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart 882050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart// Re-evaluate the technology type for each delayed device. 883050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewartvoid DeviceInfo::DelayedDeviceCreationTask() { 884050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart while (!delayed_devices_.empty()) { 885050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart set<int>::iterator it = delayed_devices_.begin(); 886050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart int dev_index = *it; 887050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart delayed_devices_.erase(it); 888050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart 889050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart DCHECK(ContainsKey(infos_, dev_index)); 890050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart DCHECK(!GetDevice(dev_index)); 891050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart 892050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart const string &link_name = infos_[dev_index].name; 893050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart Technology::Identifier technology = GetDeviceTechnology(link_name); 894050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart 895050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart if (technology == Technology::kCDCEthernet) { 896050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart LOG(INFO) << "In " << __func__ << ": device " << link_name 897050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart << " is now assumed to be regular Ethernet."; 898050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart technology = Technology::kEthernet; 899050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart } else if (technology != Technology::kCellular) { 900050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart LOG(WARNING) << "In " << __func__ << ": device " << link_name 901050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart << " is unexpected technology " 902050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart << Technology::NameFromIdentifier(technology); 903050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart } 904050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart string address = 905050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart StringToLowerASCII(infos_[dev_index].mac_address.HexEncode()); 906050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart DCHECK(!address.empty()); 907050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart 908050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart DeviceRefPtr device = CreateDevice(link_name, address, dev_index, 909050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart technology); 910050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart if (device) { 911050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart RegisterDevice(device); 912050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart } 913050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart } 914050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart} 915050cfc068fda2bd77df2ba08f7b2897bf0e0a6e0Paul Stewart 9161ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewartvoid DeviceInfo::RetrieveLinkStatistics(int interface_index, 9171ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart const RTNLMessage &msg) { 9181ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart if (!msg.HasAttribute(IFLA_STATS64)) { 9191ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart return; 9201ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart } 9211ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart ByteString stats_bytes(msg.GetAttribute(IFLA_STATS64)); 9221ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart struct rtnl_link_stats64 stats; 9231ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart if (stats_bytes.GetLength() < sizeof(stats)) { 9241ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart LOG(WARNING) << "Link statistics size is too small: " 9251ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart << stats_bytes.GetLength() << " < " << sizeof(stats); 9261ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart return; 9271ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart } 9281ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart 9291ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart memcpy(&stats, stats_bytes.GetConstData(), sizeof(stats)); 9301ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart SLOG(Device, 2) << "Link statistics for " 9311ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart << " interface index " << interface_index << ": " 9321ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart << "receive: " << stats.rx_bytes << "; " 9331ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart << "transmit: " << stats.tx_bytes << "."; 9341ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart infos_[interface_index].rx_bytes = stats.rx_bytes; 9351ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart infos_[interface_index].tx_bytes = stats.tx_bytes; 9361ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart} 9371ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart 9381ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewartvoid DeviceInfo::RequestLinkStatistics() { 9391ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart rtnl_handler_->RequestDump(RTNLHandler::kRequestLink); 9401ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart dispatcher_->PostDelayedTask(request_link_statistics_callback_.callback(), 941b061f89e7088c7fba50b49ee5ac876619c9e8a7eBen Chan kRequestLinkStatisticsIntervalMilliseconds); 9421ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart} 9431ac4e84148e03752d99aecea4f743abb094f28b0Paul Stewart 9442ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewartvoid DeviceInfo::GetWiFiInterfaceInfo(int interface_index) { 9452ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart GetInterfaceMessage msg; 9462ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart if (!msg.attributes()->SetU32AttributeValue(NL80211_ATTR_IFINDEX, 9472ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart interface_index)) { 9482ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart LOG(ERROR) << "Unable to set interface index attribute for " 9492ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart "GetInterface message. Interface type cannot be " 9502ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart "determined!"; 9512ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart return; 9522ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart } 9537347bf2b466ae8058e47b29aaf0583390405d866Wade Guthrie netlink_manager_->SendNl80211Message( 9547347bf2b466ae8058e47b29aaf0583390405d866Wade Guthrie &msg, 9557347bf2b466ae8058e47b29aaf0583390405d866Wade Guthrie Bind(&DeviceInfo::OnWiFiInterfaceInfoReceived, AsWeakPtr()), 9567347bf2b466ae8058e47b29aaf0583390405d866Wade Guthrie Bind(&NetlinkManager::OnNetlinkMessageError)); 9572ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart} 9582ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart 9597347bf2b466ae8058e47b29aaf0583390405d866Wade Guthrievoid DeviceInfo::OnWiFiInterfaceInfoReceived(const Nl80211Message &msg) { 9607347bf2b466ae8058e47b29aaf0583390405d866Wade Guthrie if (msg.command() != NL80211_CMD_NEW_INTERFACE) { 9612ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart LOG(ERROR) << "Message is not a new interface response"; 9622ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart return; 9632ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart } 9642ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart 9652ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart uint32_t interface_index; 9667347bf2b466ae8058e47b29aaf0583390405d866Wade Guthrie if (!msg.const_attributes()->GetU32AttributeValue(NL80211_ATTR_IFINDEX, 9677347bf2b466ae8058e47b29aaf0583390405d866Wade Guthrie &interface_index)) { 9682ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart LOG(ERROR) << "Message contains no interface index"; 9692ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart return; 9702ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart } 9712ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart uint32_t interface_type; 9727347bf2b466ae8058e47b29aaf0583390405d866Wade Guthrie if (!msg.const_attributes()->GetU32AttributeValue(NL80211_ATTR_IFTYPE, 9737347bf2b466ae8058e47b29aaf0583390405d866Wade Guthrie &interface_type)) { 9742ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart LOG(ERROR) << "Message contains no interface type"; 9752ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart return; 9762ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart } 9772ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart const Info *info = GetInfo(interface_index); 9782ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart if (!info) { 9792ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart LOG(ERROR) << "Could not find device info for interface index " 9802ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart << interface_index; 9812ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart return; 9822ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart } 9832ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart if (info->device) { 9842ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart LOG(ERROR) << "Device already created for interface index " 9852ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart << interface_index; 9862ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart return; 9872ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart } 9882ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart if (interface_type != NL80211_IFTYPE_STATION) { 9892ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart LOG(INFO) << "Ignoring WiFi device " 9902ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart << info->name 9912ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart << " at interface index " 9922ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart << interface_index 9932ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart << " since it is not in station mode."; 9942ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart return; 9952ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart } 9962ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart LOG(INFO) << "Creating WiFi device for station mode interface " 9972ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart << info->name 9982ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart << " at interface index " 9992ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart << interface_index; 10002ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart string address = StringToLowerASCII(info->mac_address.HexEncode()); 10012ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart DeviceRefPtr device = 10022ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart new WiFi(control_interface_, dispatcher_, metrics_, manager_, 10032ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart info->name, address, interface_index); 10042ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart device->EnableIPv6Privacy(); 10052ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart RegisterDevice(device); 10062ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart} 10072ddf2c63751546aa554335a6733314a3859d5c2ePaul Stewart 10080af98bf87e8fc3cf29293f62d7f3b73cd9adb571Paul Stewart} // namespace shill 1009