Arman Uguray | 72fab6a | 2013-01-10 19:32:42 -0800 | [diff] [blame] | 1 | // Copyright (c) 2013 The Chromium OS Authors. All rights reserved. |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "shill/modem.h" |
| 6 | |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 7 | #include <base/file_util.h> |
Ben Chan | 876efd3 | 2012-09-28 15:25:13 -0700 | [diff] [blame] | 8 | #include <base/stl_util.h> |
Ben Chan | 5c853ef | 2012-10-05 00:05:37 -0700 | [diff] [blame] | 9 | #include <ModemManager/ModemManager.h> |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 10 | |
| 11 | #include "shill/cellular.h" |
Jason Glasgow | abc5403 | 2012-04-20 16:08:32 -0400 | [diff] [blame] | 12 | #include "shill/device_info.h" |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 13 | |
Albert Chaulk | 0e1cdea | 2013-02-27 15:32:55 -0800 | [diff] [blame] | 14 | using base::FilePath; |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 15 | using std::string; |
| 16 | |
| 17 | namespace shill { |
| 18 | |
Jason Glasgow | 82f9ab3 | 2012-04-04 14:27:19 -0400 | [diff] [blame] | 19 | namespace { |
Ben Chan | 62028b2 | 2012-11-05 11:20:02 -0800 | [diff] [blame] | 20 | |
Jason Glasgow | 82f9ab3 | 2012-04-04 14:27:19 -0400 | [diff] [blame] | 21 | // The default place where the system keeps symbolic links for network device |
| 22 | const char kDefaultNetfilesPath[] = "/sys/class/net"; |
Ben Chan | 62028b2 | 2012-11-05 11:20:02 -0800 | [diff] [blame] | 23 | |
| 24 | } // namespace |
Jason Glasgow | 82f9ab3 | 2012-04-04 14:27:19 -0400 | [diff] [blame] | 25 | |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 26 | Modem1::Modem1(const string &owner, |
Jason Glasgow | a585fc3 | 2012-06-06 11:04:09 -0400 | [diff] [blame] | 27 | const string &service, |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 28 | const string &path, |
Prathmesh Prabhu | 27526f1 | 2013-03-25 19:42:18 -0700 | [diff] [blame] | 29 | ModemInfo *modem_info) |
| 30 | : Modem(owner, service, path, modem_info), |
| 31 | netfiles_path_(kDefaultNetfilesPath) {} |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 32 | |
| 33 | Modem1::~Modem1() {} |
| 34 | |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 35 | bool Modem1::GetLinkName(const DBusPropertiesMap &modem_props, |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 36 | string *name) const { |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 37 | string device_prop; |
| 38 | if (!DBusProperties::GetString(modem_props, |
Jason Glasgow | 82f9ab3 | 2012-04-04 14:27:19 -0400 | [diff] [blame] | 39 | MM_MODEM_PROPERTY_DEVICE, |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 40 | &device_prop)) { |
Jason Glasgow | abc5403 | 2012-04-20 16:08:32 -0400 | [diff] [blame] | 41 | LOG(ERROR) << "Device missing property: " << MM_MODEM_PROPERTY_DEVICE; |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 42 | return false; |
| 43 | } |
| 44 | |
Jason Glasgow | abc5403 | 2012-04-20 16:08:32 -0400 | [diff] [blame] | 45 | if (device_prop.find(DeviceInfo::kModemPseudoDeviceNamePrefix) == 0) { |
| 46 | *name = device_prop; |
| 47 | return true; |
| 48 | } |
| 49 | |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 50 | // |device_prop| will be a sysfs path such as: |
| 51 | // /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-2 |
| 52 | FilePath device_path(device_prop); |
| 53 | |
Jason Glasgow | 82f9ab3 | 2012-04-04 14:27:19 -0400 | [diff] [blame] | 54 | // Each entry in |netfiles_path_" (typically /sys/class/net) |
| 55 | // has the name of a network interface and is a symlink into the |
| 56 | // actual device structure: |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 57 | // eth0 -> ../../devices/pci0000:00/0000:00:1c.5/0000:01:00.0/net/eth0 |
| 58 | // Iterate over all of these and see if any of them point into |
| 59 | // subdirectories of the sysfs path from the Device property. |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 60 | // FileEnumerator warns that it is a blocking interface; that |
| 61 | // shouldn't be a problem here. |
Jason Glasgow | 82f9ab3 | 2012-04-04 14:27:19 -0400 | [diff] [blame] | 62 | file_util::FileEnumerator netfiles(netfiles_path_, |
Ben Chan | 62028b2 | 2012-11-05 11:20:02 -0800 | [diff] [blame] | 63 | false, // don't recurse |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 64 | file_util::FileEnumerator::DIRECTORIES); |
| 65 | for (FilePath link = netfiles.Next(); !link.empty(); link = netfiles.Next()) { |
| 66 | FilePath target; |
| 67 | if (!file_util::ReadSymbolicLink(link, &target)) |
| 68 | continue; |
| 69 | if (!target.IsAbsolute()) |
Jason Glasgow | 82f9ab3 | 2012-04-04 14:27:19 -0400 | [diff] [blame] | 70 | target = netfiles_path_.Append(target); |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 71 | if (file_util::ContainsPath(device_path, target)) { |
| 72 | *name = link.BaseName().value(); |
| 73 | return true; |
| 74 | } |
| 75 | } |
Jason Glasgow | abc5403 | 2012-04-20 16:08:32 -0400 | [diff] [blame] | 76 | LOG(ERROR) << "No link name found for: " << device_prop; |
Nathan Williams | fd10ec2 | 2012-04-11 20:29:16 -0400 | [diff] [blame] | 77 | return false; |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 78 | } |
| 79 | |
Ben Chan | 876efd3 | 2012-09-28 15:25:13 -0700 | [diff] [blame] | 80 | void Modem1::CreateDeviceMM1(const DBusInterfaceToProperties &properties) { |
Eric Shienbrood | 11567d0 | 2012-04-10 18:08:49 -0400 | [diff] [blame] | 81 | Init(); |
Arman Uguray | 72fab6a | 2013-01-10 19:32:42 -0800 | [diff] [blame] | 82 | uint32 capabilities = kuint32max; |
| 83 | DBusInterfaceToProperties::const_iterator it = |
| 84 | properties.find(MM_DBUS_INTERFACE_MODEM); |
| 85 | if (it == properties.end()) { |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 86 | LOG(ERROR) << "Cellular device with no modem properties"; |
| 87 | return; |
| 88 | } |
Arman Uguray | 72fab6a | 2013-01-10 19:32:42 -0800 | [diff] [blame] | 89 | const DBusPropertiesMap &modem_props = it->second; |
| 90 | DBusProperties::GetUint32(modem_props, |
| 91 | MM_MODEM_PROPERTY_CURRENTCAPABILITIES, |
| 92 | &capabilities); |
| 93 | |
| 94 | if ((capabilities & MM_MODEM_CAPABILITY_LTE) || |
| 95 | (capabilities & MM_MODEM_CAPABILITY_GSM_UMTS)) { |
| 96 | set_type(Cellular::kTypeUniversal); |
| 97 | } else if (capabilities & MM_MODEM_CAPABILITY_CDMA_EVDO) { |
| 98 | set_type(Cellular::kTypeUniversalCDMA); |
| 99 | } else { |
| 100 | LOG(ERROR) << "Unsupported capabilities: " << capabilities; |
| 101 | return; |
| 102 | } |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 103 | |
| 104 | // We cannot check the IP method to make sure it's not PPP. The IP |
| 105 | // method will be checked later when the bearer object is fetched. |
Ben Chan | 876efd3 | 2012-09-28 15:25:13 -0700 | [diff] [blame] | 106 | CreateDeviceFromModemProperties(properties); |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 107 | } |
| 108 | |
Jason Glasgow | 4c0724a | 2012-04-17 15:47:40 -0400 | [diff] [blame] | 109 | string Modem1::GetModemInterface(void) const { |
| 110 | return string(MM_DBUS_INTERFACE_MODEM); |
| 111 | } |
| 112 | |
David Rochberg | fa1d31d | 2012-03-20 10:38:07 -0400 | [diff] [blame] | 113 | } // namespace shill |