mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [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 | |
Chris Masone | 2b10554 | 2011-06-22 10:58:09 -0700 | [diff] [blame] | 5 | #include "shill/wifi.h" |
| 6 | |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 7 | #include <time.h> |
| 8 | #include <stdio.h> |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 9 | #include <string.h> |
mukesh agrawal | f2f68a5 | 2011-09-01 12:15:48 -0700 | [diff] [blame] | 10 | #include <netinet/ether.h> |
mukesh agrawal | 5c4dd0b | 2011-09-14 13:53:14 -0700 | [diff] [blame] | 11 | #include <linux/if.h> // Needs definitions from netinet/ether.h |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 12 | |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 13 | #include <algorithm> |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 14 | #include <map> |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 15 | #include <set> |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 16 | #include <string> |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 17 | #include <vector> |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 18 | |
| 19 | #include <base/logging.h> |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 20 | #include <base/stringprintf.h> |
mukesh agrawal | 7a4e400 | 2011-09-06 11:26:05 -0700 | [diff] [blame] | 21 | #include <base/string_number_conversions.h> |
| 22 | #include <base/string_util.h> |
Chris Masone | b925cc8 | 2011-06-22 15:39:57 -0700 | [diff] [blame] | 23 | #include <chromeos/dbus/service_constants.h> |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 24 | |
| 25 | #include "shill/control_interface.h" |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 26 | #include "shill/dbus_adaptor.h" |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 27 | #include "shill/device.h" |
mukesh agrawal | 7a4e400 | 2011-09-06 11:26:05 -0700 | [diff] [blame] | 28 | #include "shill/error.h" |
Paul Stewart | 26b327e | 2011-10-19 11:38:09 -0700 | [diff] [blame] | 29 | #include "shill/event_dispatcher.h" |
mukesh agrawal | 7a4e400 | 2011-09-06 11:26:05 -0700 | [diff] [blame] | 30 | #include "shill/key_value_store.h" |
| 31 | #include "shill/ieee80211.h" |
Chris Masone | 7aa5f90 | 2011-07-11 11:13:35 -0700 | [diff] [blame] | 32 | #include "shill/manager.h" |
| 33 | #include "shill/profile.h" |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 34 | #include "shill/property_accessor.h" |
Darin Petkov | d196726 | 2011-07-18 14:55:18 -0700 | [diff] [blame] | 35 | #include "shill/proxy_factory.h" |
Paul Stewart | a41e38d | 2011-11-11 07:47:29 -0800 | [diff] [blame] | 36 | #include "shill/store_interface.h" |
mukesh agrawal | af57195 | 2011-07-14 14:31:12 -0700 | [diff] [blame] | 37 | #include "shill/supplicant_interface_proxy_interface.h" |
| 38 | #include "shill/supplicant_process_proxy_interface.h" |
Gaurav Shah | 435de2c | 2011-11-17 19:01:07 -0800 | [diff] [blame] | 39 | #include "shill/technology.h" |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 40 | #include "shill/wifi_endpoint.h" |
| 41 | #include "shill/wifi_service.h" |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 42 | #include "shill/wpa_supplicant.h" |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 43 | |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 44 | using base::StringPrintf; |
mukesh agrawal | 7a4e400 | 2011-09-06 11:26:05 -0700 | [diff] [blame] | 45 | using std::map; |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 46 | using std::set; |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 47 | using std::string; |
mukesh agrawal | 7a4e400 | 2011-09-06 11:26:05 -0700 | [diff] [blame] | 48 | using std::vector; |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 49 | |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 50 | namespace shill { |
mukesh agrawal | 7a4e400 | 2011-09-06 11:26:05 -0700 | [diff] [blame] | 51 | |
| 52 | // statics |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 53 | const char *WiFi::kDefaultBgscanMethod = |
| 54 | wpa_supplicant::kNetworkBgscanMethodSimple; |
| 55 | const uint16 WiFi::kDefaultBgscanShortIntervalSeconds = 30; |
| 56 | const int32 WiFi::kDefaultBgscanSignalThresholdDbm = -50; |
| 57 | const uint16 WiFi::kDefaultScanIntervalSeconds = 180; |
mukesh agrawal | 7a4e400 | 2011-09-06 11:26:05 -0700 | [diff] [blame] | 58 | // Note that WiFi generates some manager-level errors, because it implements |
| 59 | // the Manager.GetWiFiService flimflam API. The API is implemented here, |
| 60 | // rather than in manager, to keep WiFi-specific logic in the right place. |
| 61 | const char WiFi::kManagerErrorPassphraseRequired[] = "must specify passphrase"; |
| 62 | const char WiFi::kManagerErrorSSIDRequired[] = "must specify SSID"; |
| 63 | const char WiFi::kManagerErrorSSIDTooLong[] = "SSID is too long"; |
| 64 | const char WiFi::kManagerErrorSSIDTooShort[] = "SSID is too short"; |
| 65 | const char WiFi::kManagerErrorTypeRequired[] = "must specify service type"; |
| 66 | const char WiFi::kManagerErrorUnsupportedSecurityMode[] = |
| 67 | "security mode is unsupported"; |
| 68 | const char WiFi::kManagerErrorUnsupportedServiceType[] = |
| 69 | "service type is unsupported"; |
| 70 | const char WiFi::kManagerErrorUnsupportedServiceMode[] = |
| 71 | "service mode is unsupported"; |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 72 | const char WiFi::kInterfaceStateUnknown[] = "shill-unknown"; |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 73 | |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 74 | WiFi::WiFi(ControlInterface *control_interface, |
| 75 | EventDispatcher *dispatcher, |
Paul Stewart | f1ce5d2 | 2011-05-19 13:10:20 -0700 | [diff] [blame] | 76 | Manager *manager, |
Chris Masone | 3bd3c8c | 2011-06-13 08:20:26 -0700 | [diff] [blame] | 77 | const string& link, |
Paul Stewart | a41e38d | 2011-11-11 07:47:29 -0800 | [diff] [blame] | 78 | const string &address, |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 79 | int interface_index) |
Chris Masone | a82b711 | 2011-05-25 15:16:29 -0700 | [diff] [blame] | 80 | : Device(control_interface, |
| 81 | dispatcher, |
| 82 | manager, |
Chris Masone | 3bd3c8c | 2011-06-13 08:20:26 -0700 | [diff] [blame] | 83 | link, |
Chris Masone | 626719f | 2011-08-18 16:58:48 -0700 | [diff] [blame] | 84 | address, |
Gaurav Shah | 435de2c | 2011-11-17 19:01:07 -0800 | [diff] [blame] | 85 | interface_index, |
| 86 | Technology::kWifi), |
Darin Petkov | ab565bb | 2011-10-06 02:55:51 -0700 | [diff] [blame] | 87 | proxy_factory_(ProxyFactory::GetInstance()), |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 88 | task_factory_(this), |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 89 | link_up_(false), |
| 90 | supplicant_state_(kInterfaceStateUnknown), |
| 91 | supplicant_bss_("(unknown)"), |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 92 | bgscan_method_(kDefaultBgscanMethod), |
| 93 | bgscan_short_interval_seconds_(kDefaultBgscanShortIntervalSeconds), |
| 94 | bgscan_signal_threshold_dbm_(kDefaultBgscanSignalThresholdDbm), |
Chris Masone | 853b81b | 2011-06-24 14:11:41 -0700 | [diff] [blame] | 95 | scan_pending_(false), |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 96 | scan_interval_seconds_(kDefaultScanIntervalSeconds) { |
mukesh agrawal | de29fa8 | 2011-09-16 16:16:36 -0700 | [diff] [blame] | 97 | PropertyStore *store = this->mutable_store(); |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 98 | HelpRegisterDerivedString(store, |
| 99 | flimflam::kBgscanMethodProperty, |
| 100 | &WiFi::GetBgscanMethod, |
| 101 | &WiFi::SetBgscanMethod); |
| 102 | HelpRegisterDerivedUint16(store, |
| 103 | flimflam::kBgscanShortIntervalProperty, |
| 104 | &WiFi::GetBgscanShortInterval, |
| 105 | &WiFi::SetBgscanShortInterval); |
| 106 | HelpRegisterDerivedInt32(store, |
| 107 | flimflam::kBgscanSignalThresholdProperty, |
| 108 | &WiFi::GetBgscanSignalThreshold, |
| 109 | &WiFi::SetBgscanSignalThreshold); |
Chris Masone | 853b81b | 2011-06-24 14:11:41 -0700 | [diff] [blame] | 110 | |
Chris Masone | b925cc8 | 2011-06-22 15:39:57 -0700 | [diff] [blame] | 111 | // TODO(quiche): Decide if scan_pending_ is close enough to |
| 112 | // "currently scanning" that we don't care, or if we want to track |
| 113 | // scan pending/currently scanning/no scan scheduled as a tri-state |
| 114 | // kind of thing. |
Paul Stewart | ac4ac00 | 2011-08-26 12:04:26 -0700 | [diff] [blame] | 115 | store->RegisterConstBool(flimflam::kScanningProperty, &scan_pending_); |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 116 | HelpRegisterDerivedUint16(store, |
| 117 | flimflam::kScanIntervalProperty, |
| 118 | &WiFi::GetScanInterval, |
| 119 | &WiFi::SetScanInterval); |
Paul Stewart | ac4ac00 | 2011-08-26 12:04:26 -0700 | [diff] [blame] | 120 | VLOG(2) << "WiFi device " << link_name() << " initialized."; |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 121 | } |
| 122 | |
mukesh agrawal | af57195 | 2011-07-14 14:31:12 -0700 | [diff] [blame] | 123 | WiFi::~WiFi() {} |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 124 | |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 125 | void WiFi::Start() { |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 126 | ::DBus::Path interface_path; |
| 127 | |
mukesh agrawal | af57195 | 2011-07-14 14:31:12 -0700 | [diff] [blame] | 128 | supplicant_process_proxy_.reset( |
Darin Petkov | ab565bb | 2011-10-06 02:55:51 -0700 | [diff] [blame] | 129 | proxy_factory_->CreateSupplicantProcessProxy( |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 130 | wpa_supplicant::kDBusPath, wpa_supplicant::kDBusAddr)); |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 131 | try { |
Paul Stewart | a41e38d | 2011-11-11 07:47:29 -0800 | [diff] [blame] | 132 | map<string, DBus::Variant> create_interface_args; |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 133 | create_interface_args["Ifname"].writer(). |
Paul Stewart | ac4ac00 | 2011-08-26 12:04:26 -0700 | [diff] [blame] | 134 | append_string(link_name().c_str()); |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 135 | create_interface_args["Driver"].writer(). |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 136 | append_string(wpa_supplicant::kDriverNL80211); |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 137 | // TODO(quiche) create_interface_args["ConfigFile"].writer().append_string |
| 138 | // (file with pkcs config info) |
| 139 | interface_path = |
| 140 | supplicant_process_proxy_->CreateInterface(create_interface_args); |
| 141 | } catch (const DBus::Error e) { // NOLINT |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 142 | if (!strcmp(e.name(), wpa_supplicant::kErrorInterfaceExists)) { |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 143 | interface_path = |
Paul Stewart | ac4ac00 | 2011-08-26 12:04:26 -0700 | [diff] [blame] | 144 | supplicant_process_proxy_->GetInterface(link_name()); |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 145 | // TODO(quiche): Is it okay to crash here, if device is missing? |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 146 | } else { |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 147 | // TODO(quiche): Log error. |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 148 | } |
| 149 | } |
| 150 | |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 151 | supplicant_interface_proxy_.reset( |
Darin Petkov | ab565bb | 2011-10-06 02:55:51 -0700 | [diff] [blame] | 152 | proxy_factory_->CreateSupplicantInterfaceProxy( |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 153 | this, interface_path, wpa_supplicant::kDBusAddr)); |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 154 | |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 155 | // TODO(quiche) Set ApScan=1 and BSSExpireAge=190, like flimflam does? |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 156 | |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 157 | // Clear out any networks that might previously have been configured |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 158 | // for this interface. |
| 159 | supplicant_interface_proxy_->RemoveAllNetworks(); |
| 160 | |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 161 | // Flush interface's BSS cache, so that we get BSSAdded signals for |
mukesh agrawal | c7426a4 | 2011-06-03 13:04:28 -0700 | [diff] [blame] | 162 | // all BSSes (not just new ones since the last scan). |
| 163 | supplicant_interface_proxy_->FlushBSS(0); |
| 164 | |
Darin Petkov | c086531 | 2011-09-16 15:31:20 -0700 | [diff] [blame] | 165 | Scan(NULL); |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 166 | Device::Start(); |
| 167 | } |
| 168 | |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 169 | void WiFi::Stop() { |
mukesh agrawal | 5c4dd0b | 2011-09-14 13:53:14 -0700 | [diff] [blame] | 170 | VLOG(2) << "WiFi " << link_name() << " stopping."; |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 171 | // TODO(quiche): Remove interface from supplicant. |
mukesh agrawal | 3195024 | 2011-07-14 11:53:38 -0700 | [diff] [blame] | 172 | supplicant_interface_proxy_.reset(); // breaks a reference cycle |
| 173 | supplicant_process_proxy_.reset(); |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 174 | endpoint_by_rpcid_.clear(); |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 175 | rpcid_by_service_.clear(); |
mukesh agrawal | 5c4dd0b | 2011-09-14 13:53:14 -0700 | [diff] [blame] | 176 | |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 177 | for (vector<WiFiServiceRefPtr>::const_iterator it = services_.begin(); |
| 178 | it != services_.end(); |
mukesh agrawal | 5c4dd0b | 2011-09-14 13:53:14 -0700 | [diff] [blame] | 179 | ++it) { |
| 180 | manager()->DeregisterService(*it); |
| 181 | } |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 182 | services_.clear(); // breaks reference cycles |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 183 | pending_service_ = NULL; // breaks a reference cycle |
mukesh agrawal | 5c4dd0b | 2011-09-14 13:53:14 -0700 | [diff] [blame] | 184 | |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 185 | Device::Stop(); |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 186 | // TODO(quiche): Anything else to do? |
mukesh agrawal | 5c4dd0b | 2011-09-14 13:53:14 -0700 | [diff] [blame] | 187 | |
| 188 | VLOG(3) << "WiFi " << link_name() << " task_factory_ " |
| 189 | << (task_factory_.empty() ? "is empty." : "is not empty."); |
| 190 | VLOG(3) << "WiFi " << link_name() << " supplicant_process_proxy_ " |
| 191 | << (supplicant_process_proxy_.get() ? "is set." : "is not set."); |
| 192 | VLOG(3) << "WiFi " << link_name() << " supplicant_interface_proxy_ " |
| 193 | << (supplicant_interface_proxy_.get() ? "is set." : "is not set."); |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 194 | VLOG(3) << "WiFi " << link_name() << " pending_service_ " |
| 195 | << (pending_service_.get() ? "is set." : "is not set."); |
mukesh agrawal | 165e614 | 2011-11-22 02:22:56 +0000 | [diff] [blame] | 196 | VLOG(3) << "WiFi " << link_name() << " has " << endpoint_by_rpcid_.size() |
mukesh agrawal | 5c4dd0b | 2011-09-14 13:53:14 -0700 | [diff] [blame] | 197 | << " EndpointMap entries."; |
mukesh agrawal | 165e614 | 2011-11-22 02:22:56 +0000 | [diff] [blame] | 198 | VLOG(3) << "WiFi " << link_name() << " has " << services_.size() |
| 199 | << " Services."; |
mukesh agrawal | ab87ea4 | 2011-05-18 11:44:49 -0700 | [diff] [blame] | 200 | } |
| 201 | |
Paul Stewart | a41e38d | 2011-11-11 07:47:29 -0800 | [diff] [blame] | 202 | bool WiFi::Load(StoreInterface *storage) { |
| 203 | LoadHiddenServices(storage); |
| 204 | return Device::Load(storage); |
| 205 | } |
| 206 | |
mukesh agrawal | 1830fa1 | 2011-09-26 14:31:40 -0700 | [diff] [blame] | 207 | void WiFi::Scan(Error */*error*/) { |
mukesh agrawal | 3239932 | 2011-09-01 10:53:43 -0700 | [diff] [blame] | 208 | LOG(INFO) << __func__; |
| 209 | |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 210 | // Needs to send a D-Bus message, but may be called from D-Bus |
| 211 | // signal handler context (via Manager::RequestScan). So defer work |
mukesh agrawal | 3239932 | 2011-09-01 10:53:43 -0700 | [diff] [blame] | 212 | // to event loop. |
| 213 | dispatcher()->PostTask( |
| 214 | task_factory_.NewRunnableMethod(&WiFi::ScanTask)); |
| 215 | } |
| 216 | |
Paul Stewart | fdd1607 | 2011-09-16 12:41:35 -0700 | [diff] [blame] | 217 | bool WiFi::TechnologyIs(const Technology::Identifier type) const { |
| 218 | return type == Technology::kWifi; |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 219 | } |
| 220 | |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 221 | bool WiFi::IsConnectingTo(const WiFiService &service) const { |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 222 | return pending_service_ == &service || |
| 223 | (current_service_ == &service && |
| 224 | service.state() != Service::kStateConnected); |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 225 | } |
| 226 | |
mukesh agrawal | f2f68a5 | 2011-09-01 12:15:48 -0700 | [diff] [blame] | 227 | void WiFi::LinkEvent(unsigned int flags, unsigned int change) { |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 228 | // TODO(quiche): Figure out how to relate these events to supplicant |
| 229 | // events. E.g., may be we can ignore LinkEvent, in favor of events |
mukesh agrawal | f2f68a5 | 2011-09-01 12:15:48 -0700 | [diff] [blame] | 230 | // from SupplicantInterfaceProxy? |
| 231 | Device::LinkEvent(flags, change); |
| 232 | if ((flags & IFF_LOWER_UP) != 0 && !link_up_) { |
| 233 | LOG(INFO) << link_name() << " is up; should start L3!"; |
| 234 | link_up_ = true; |
Paul Stewart | 2bf1d35 | 2011-12-06 15:02:55 -0800 | [diff] [blame] | 235 | if (AcquireIPConfig()) { |
mukesh agrawal | f2f68a5 | 2011-09-01 12:15:48 -0700 | [diff] [blame] | 236 | SetServiceState(Service::kStateConfiguring); |
| 237 | } else { |
| 238 | LOG(ERROR) << "Unable to acquire DHCP config."; |
| 239 | } |
| 240 | } else if ((flags & IFF_LOWER_UP) == 0 && link_up_) { |
mukesh agrawal | 5c4dd0b | 2011-09-14 13:53:14 -0700 | [diff] [blame] | 241 | LOG(INFO) << link_name() << " is down"; |
mukesh agrawal | f2f68a5 | 2011-09-01 12:15:48 -0700 | [diff] [blame] | 242 | link_up_ = false; |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 243 | // TODO(quiche): Attempt to reconnect to current SSID, another SSID, |
mukesh agrawal | f2f68a5 | 2011-09-01 12:15:48 -0700 | [diff] [blame] | 244 | // or initiate a scan. |
| 245 | } |
| 246 | } |
| 247 | |
mukesh agrawal | b4bc57d | 2011-12-07 01:07:47 +0000 | [diff] [blame] | 248 | void WiFi::BSSAdded(const ::DBus::Path &path, |
| 249 | const map<string, ::DBus::Variant> &properties) { |
| 250 | // Called from a D-Bus signal handler, and nay need to send a D-Bus |
| 251 | // message. So defer work to event loop. |
| 252 | dispatcher()->PostTask( |
| 253 | task_factory_.NewRunnableMethod(&WiFi::BSSAddedTask, path, properties)); |
mukesh agrawal | 261daca | 2011-12-02 18:56:56 +0000 | [diff] [blame] | 254 | } |
| 255 | |
| 256 | void WiFi::BSSRemoved(const ::DBus::Path &path) { |
mukesh agrawal | b4bc57d | 2011-12-07 01:07:47 +0000 | [diff] [blame] | 257 | // Called from a D-Bus signal handler, and nay need to send a D-Bus |
| 258 | // message. So defer work to event loop. |
| 259 | dispatcher()->PostTask( |
| 260 | task_factory_.NewRunnableMethod(&WiFi::BSSRemovedTask, path)); |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 261 | } |
| 262 | |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 263 | void WiFi::PropertiesChanged(const map<string, ::DBus::Variant> &properties) { |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 264 | LOG(INFO) << "In " << __func__ << "(): called"; |
| 265 | // Called from D-Bus signal handler, but may need to send a D-Bus |
| 266 | // message. So defer work to event loop. |
| 267 | dispatcher()->PostTask( |
| 268 | task_factory_.NewRunnableMethod(&WiFi::PropertiesChangedTask, |
| 269 | properties)); |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 270 | } |
| 271 | |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 272 | void WiFi::ScanDone() { |
| 273 | LOG(INFO) << __func__; |
| 274 | |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 275 | // Defer handling of scan result processing, because that processing |
| 276 | // may require the the registration of new D-Bus objects. And such |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 277 | // registration can't be done in the context of a D-Bus signal |
| 278 | // handler. |
Paul Stewart | ac4ac00 | 2011-08-26 12:04:26 -0700 | [diff] [blame] | 279 | dispatcher()->PostTask( |
mukesh agrawal | dc42bb3 | 2011-07-28 10:40:26 -0700 | [diff] [blame] | 280 | task_factory_.NewRunnableMethod(&WiFi::ScanDoneTask)); |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 281 | } |
| 282 | |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 283 | void WiFi::ConnectTo(WiFiService *service, |
mukesh agrawal | 6489632 | 2011-12-01 01:13:10 +0000 | [diff] [blame] | 284 | map<string, DBus::Variant> service_params) { |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 285 | CHECK(service); |
mukesh agrawal | 445e72c | 2011-06-22 11:13:50 -0700 | [diff] [blame] | 286 | DBus::Path network_path; |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 287 | |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 288 | // TODO(quiche): Handle cases where already connected. |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 289 | if (pending_service_ && pending_service_ == service) { |
| 290 | // TODO(quiche): Return an error to the caller. crosbug.com/23832 |
| 291 | LOG(INFO) << "WiFi " << link_name() << " ignoring ConnectTo " |
| 292 | << service->friendly_name() |
| 293 | << ", which is already pending."; |
| 294 | return; |
| 295 | } |
| 296 | |
| 297 | if (pending_service_ && pending_service_ != service) { |
| 298 | DisconnectFrom(pending_service_); |
| 299 | } |
mukesh agrawal | 3239932 | 2011-09-01 10:53:43 -0700 | [diff] [blame] | 300 | |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 301 | try { |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 302 | // TODO(quiche): Set a timeout here. In the normal case, we expect |
| 303 | // that, if wpa_supplicant fails to connect, it will eventually send |
| 304 | // a signal that its CurrentBSS has changed. But there may be cases |
| 305 | // where the signal is not sent. (crosbug.com/23206) |
mukesh agrawal | 6489632 | 2011-12-01 01:13:10 +0000 | [diff] [blame] | 306 | const uint32_t scan_ssid = 1; // "True": Use directed probe. |
| 307 | service_params[wpa_supplicant::kNetworkPropertyScanSSID].writer(). |
| 308 | append_uint32(scan_ssid); |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 309 | service_params[wpa_supplicant::kNetworkPropertyBgscan].writer(). |
| 310 | append_string(CreateBgscanConfigString().c_str()); |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 311 | network_path = |
| 312 | supplicant_interface_proxy_->AddNetwork(service_params); |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 313 | rpcid_by_service_[service] = network_path; |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 314 | } catch (const DBus::Error e) { // NOLINT |
| 315 | LOG(ERROR) << "exception while adding network: " << e.what(); |
| 316 | return; |
| 317 | } |
mukesh agrawal | 445e72c | 2011-06-22 11:13:50 -0700 | [diff] [blame] | 318 | |
mukesh agrawal | 445e72c | 2011-06-22 11:13:50 -0700 | [diff] [blame] | 319 | supplicant_interface_proxy_->SelectNetwork(network_path); |
mukesh agrawal | f2f68a5 | 2011-09-01 12:15:48 -0700 | [diff] [blame] | 320 | |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 321 | pending_service_ = service; |
| 322 | CHECK(current_service_.get() != pending_service_.get()); |
| 323 | |
mukesh agrawal | f2f68a5 | 2011-09-01 12:15:48 -0700 | [diff] [blame] | 324 | // SelectService here (instead of in LinkEvent, like Ethernet), so |
| 325 | // that, if we fail to bring up L2, we can attribute failure correctly. |
| 326 | // |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 327 | // TODO(quiche): When we add code for dealing with connection failures, |
mukesh agrawal | f2f68a5 | 2011-09-01 12:15:48 -0700 | [diff] [blame] | 328 | // reconsider if this is the right place to change the selected service. |
| 329 | // see discussion in crosbug.com/20191. |
| 330 | SelectService(service); |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 331 | } |
| 332 | |
mukesh agrawal | 0ed0f2e | 2011-12-05 20:36:17 +0000 | [diff] [blame] | 333 | void WiFi::DisconnectFrom(WiFiService *service) { |
| 334 | if (service != current_service_ && service != pending_service_) { |
| 335 | // TODO(quiche): Once we have asynchronous reply support, we should |
| 336 | // generate a D-Bus error here. (crosbug.com/23832) |
| 337 | LOG(WARNING) << "In " << __func__ << "(): " |
| 338 | << " ignoring request to disconnect from service " |
| 339 | << service->friendly_name() |
| 340 | << " which is neither current nor pending"; |
| 341 | return; |
| 342 | } |
| 343 | |
| 344 | if (pending_service_ && service != pending_service_) { |
| 345 | // TODO(quiche): Once we have asynchronous reply support, we should |
| 346 | // generate a D-Bus error here. (crosbug.com/23832) |
| 347 | LOG(WARNING) << "In " << __func__ << "(): " |
| 348 | << " ignoring request to disconnect from service " |
| 349 | << service->friendly_name() |
| 350 | << " which is not the pending service."; |
| 351 | return; |
| 352 | } |
| 353 | |
| 354 | if (!pending_service_ && service != current_service_) { |
| 355 | // TODO(quiche): Once we have asynchronous reply support, we should |
| 356 | // generate a D-Bus error here. (crosbug.com/23832) |
| 357 | LOG(WARNING) << "In " << __func__ << "(): " |
| 358 | << " ignoring request to disconnect from service " |
| 359 | << service->friendly_name() |
| 360 | << " which is not the current service."; |
| 361 | return; |
| 362 | } |
| 363 | |
| 364 | pending_service_ = NULL; |
| 365 | try { |
| 366 | supplicant_interface_proxy_->Disconnect(); |
| 367 | // We'll call RemoveNetwork and reset |current_service_| after |
| 368 | // supplicant notifies us that the CurrentBSS has changed. |
| 369 | } catch (const DBus::Error e) { // NOLINT |
| 370 | // Can't depend on getting a notification of CurrentBSS change. |
| 371 | // So effect changes immediately. |
| 372 | ReverseServiceMap::const_iterator rpcid_it = |
| 373 | rpcid_by_service_.find(service); |
| 374 | DCHECK(rpcid_it != rpcid_by_service_.end()); |
| 375 | if (rpcid_it == rpcid_by_service_.end()) { |
| 376 | LOG(WARNING) << "WiFi " << link_name() << " can not disconnect from " |
| 377 | << service->friendly_name() << ": " |
| 378 | << "could not find supplicant network to disable."; |
| 379 | } else { |
| 380 | supplicant_interface_proxy_->RemoveNetwork(rpcid_it->second); |
| 381 | } |
| 382 | current_service_ = NULL; |
| 383 | } |
| 384 | |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 385 | CHECK(current_service_ == NULL || |
| 386 | current_service_.get() != pending_service_.get()); |
mukesh agrawal | 0ed0f2e | 2011-12-05 20:36:17 +0000 | [diff] [blame] | 387 | } |
| 388 | |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 389 | bool WiFi::IsIdle() const { |
Paul Stewart | 3d9bcf5 | 2011-12-12 15:02:22 -0800 | [diff] [blame] | 390 | return !current_service_ && !pending_service_; |
| 391 | } |
| 392 | |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 393 | string WiFi::CreateBgscanConfigString() { |
| 394 | return StringPrintf("%s:%d:%d:%d", |
| 395 | bgscan_method_.c_str(), |
| 396 | bgscan_short_interval_seconds_, |
| 397 | bgscan_signal_threshold_dbm_, |
| 398 | scan_interval_seconds_); |
| 399 | } |
| 400 | |
| 401 | void WiFi::SetBgscanMethod(const string &method, Error *error) { |
| 402 | if (method != wpa_supplicant::kNetworkBgscanMethodSimple && |
| 403 | method != wpa_supplicant::kNetworkBgscanMethodLearn) { |
| 404 | const string error_message = |
| 405 | StringPrintf("Unrecognized bgscan method %s", method.c_str()); |
| 406 | LOG(WARNING) << error_message; |
| 407 | error->Populate(Error::kInvalidArguments, error_message); |
| 408 | return; |
| 409 | } |
| 410 | |
| 411 | bgscan_method_ = method; |
| 412 | // We do not update kNetworkPropertyBgscan for |pending_service_| or |
| 413 | // |current_service_|, because supplicant does not allow for |
| 414 | // reconfiguration without disconnect and reconnect. |
| 415 | } |
| 416 | |
| 417 | void WiFi::SetBgscanShortInterval(const uint16 &seconds, Error */*error*/) { |
| 418 | bgscan_short_interval_seconds_ = seconds; |
| 419 | // We do not update kNetworkPropertyBgscan for |pending_service_| or |
| 420 | // |current_service_|, because supplicant does not allow for |
| 421 | // reconfiguration without disconnect and reconnect. |
| 422 | } |
| 423 | |
| 424 | void WiFi::SetBgscanSignalThreshold(const int32 &dbm, Error */*error*/) { |
| 425 | bgscan_signal_threshold_dbm_ = dbm; |
| 426 | // We do not update kNetworkPropertyBgscan for |pending_service_| or |
| 427 | // |current_service_|, because supplicant does not allow for |
| 428 | // reconfiguration without disconnect and reconnect. |
| 429 | } |
| 430 | |
| 431 | void WiFi::SetScanInterval(const uint16 &seconds, Error */*error*/) { |
| 432 | scan_interval_seconds_ = seconds; |
| 433 | // We do not update |pending_service_| or |current_service_|, because |
| 434 | // supplicant does not allow for reconfiguration without disconnect |
| 435 | // and reconnect. |
| 436 | |
| 437 | // TODO(quiche): Update scan timer. crosbug.com/24337 |
| 438 | } |
| 439 | |
mukesh agrawal | 165e614 | 2011-11-22 02:22:56 +0000 | [diff] [blame] | 440 | // To avoid creating duplicate services, call FindServiceForEndpoint |
| 441 | // before calling this method. |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 442 | WiFiServiceRefPtr WiFi::CreateServiceForEndpoint(const WiFiEndpoint &endpoint, |
| 443 | bool hidden_ssid) { |
| 444 | WiFiServiceRefPtr service = |
| 445 | new WiFiService(control_interface(), |
| 446 | dispatcher(), |
| 447 | manager(), |
| 448 | this, |
| 449 | endpoint.ssid(), |
| 450 | endpoint.network_mode(), |
| 451 | endpoint.security_mode(), |
| 452 | hidden_ssid); |
mukesh agrawal | 165e614 | 2011-11-22 02:22:56 +0000 | [diff] [blame] | 453 | services_.push_back(service); |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 454 | return service; |
| 455 | } |
| 456 | |
| 457 | void WiFi::CurrentBSSChanged(const ::DBus::Path &new_bss) { |
| 458 | VLOG(3) << "WiFi " << link_name() << " CurrentBSS " |
| 459 | << supplicant_bss_ << " -> " << new_bss; |
| 460 | supplicant_bss_ = new_bss; |
| 461 | if (new_bss == wpa_supplicant::kCurrentBSSNull) { |
| 462 | HandleDisconnect(); |
| 463 | } else { |
| 464 | HandleRoam(new_bss); |
| 465 | } |
| 466 | |
| 467 | SelectService(current_service_); |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 468 | // Invariant check: a Service can either be current, or pending, but |
| 469 | // not both. |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 470 | CHECK(current_service_.get() != pending_service_.get() || |
| 471 | current_service_.get() == NULL); |
| 472 | |
| 473 | // TODO(quiche): Update BSSID property on the Service |
| 474 | // (crosbug.com/22377). |
| 475 | } |
| 476 | |
| 477 | void WiFi::HandleDisconnect() { |
| 478 | // Identify the affected service. We expect to get a disconnect |
| 479 | // event when we fall off a Service that we were connected |
| 480 | // to. However, we also allow for the case where we get a disconnect |
| 481 | // event while attempting to connect from a disconnected state. |
| 482 | WiFiService *affected_service = |
| 483 | current_service_.get() ? current_service_.get() : pending_service_.get(); |
| 484 | |
| 485 | current_service_ = NULL; |
| 486 | if (!affected_service) { |
| 487 | VLOG(2) << "WiFi " << link_name() |
| 488 | << " disconnected while not connected or connecting"; |
| 489 | return; |
| 490 | } |
| 491 | |
| 492 | ReverseServiceMap::const_iterator rpcid_it = |
| 493 | rpcid_by_service_.find(affected_service); |
| 494 | if (rpcid_it == rpcid_by_service_.end()) { |
| 495 | VLOG(2) << "WiFi " << link_name() << " disconnected from " |
| 496 | << " (or failed to connect to) " |
| 497 | << affected_service->friendly_name() << ", " |
| 498 | << "but could not find supplicant network to disable."; |
| 499 | return; |
| 500 | } |
| 501 | |
| 502 | VLOG(2) << "WiFi " << link_name() << " disconnected from " |
| 503 | << " (or failed to connect to) " |
| 504 | << affected_service->friendly_name(); |
| 505 | // TODO(quiche): Reconsider giving up immediately. Maybe give |
| 506 | // wpa_supplicant some time to retry, first. |
| 507 | supplicant_interface_proxy_->RemoveNetwork(rpcid_it->second); |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 508 | // TODO(quiche): If we initated the disconnect, we should probably |
| 509 | // go to the idle state instead. crosbug.com/24700 |
| 510 | affected_service->SetFailure(Service::kFailureUnknown); |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 511 | |
| 512 | if (affected_service == pending_service_.get()) { |
| 513 | // The attempt to connect to |pending_service_| failed. Clear |
| 514 | // |pending_service_|, to indicate we're no longer in the middle |
| 515 | // of a connect request. |
| 516 | pending_service_ = NULL; |
| 517 | } else if (pending_service_.get()) { |
| 518 | // We've attributed the disconnection to what was the |
| 519 | // |current_service_|, rather than the |pending_service_|. |
| 520 | // |
| 521 | // If we're wrong about that (i.e. supplicant reported this |
| 522 | // CurrentBSS change after attempting to connect to |
| 523 | // |pending_service_|), we're depending on supplicant to retry |
| 524 | // connecting to |pending_service_|, and delivering another |
| 525 | // CurrentBSS change signal in the future. |
| 526 | // |
| 527 | // Log this fact, to help us debug (in case our assumptions are |
| 528 | // wrong). |
| 529 | VLOG(2) << "WiFi " << link_name() << " pending connection to " |
| 530 | << pending_service_->friendly_name() |
| 531 | << " after disconnect"; |
| 532 | } |
| 533 | } |
| 534 | |
| 535 | // We use the term "Roam" loosely. In particular, we include the case |
| 536 | // where we "Roam" to a BSS from the disconnected state. |
| 537 | void WiFi::HandleRoam(const ::DBus::Path &new_bss) { |
| 538 | EndpointMap::iterator endpoint_it = endpoint_by_rpcid_.find(new_bss); |
| 539 | if (endpoint_it == endpoint_by_rpcid_.end()) { |
| 540 | LOG(WARNING) << "WiFi " << link_name() << " connected to unknown BSS " |
| 541 | << new_bss; |
| 542 | return; |
| 543 | } |
| 544 | |
| 545 | const WiFiEndpoint &endpoint(*endpoint_it->second); |
mukesh agrawal | 165e614 | 2011-11-22 02:22:56 +0000 | [diff] [blame] | 546 | WiFiServiceRefPtr service = FindServiceForEndpoint(endpoint); |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 547 | if (!service.get()) { |
| 548 | LOG(WARNING) << "WiFi " << link_name() |
| 549 | << " could not find Service for Endpoint " |
| 550 | << endpoint.bssid_string() |
| 551 | << " (service will be unchanged)"; |
| 552 | return; |
| 553 | } |
| 554 | |
| 555 | VLOG(2) << "WiFi " << link_name() |
| 556 | << " roamed to Endpoint " << endpoint.bssid_string() |
| 557 | << " (SSID " << endpoint.ssid_string() << ")"; |
| 558 | |
| 559 | if (pending_service_.get() && |
| 560 | service.get() != pending_service_.get()) { |
| 561 | // The Service we've roamed on to is not the one we asked for. |
| 562 | // We assume that this is transient, and that wpa_supplicant |
| 563 | // is trying / will try to connect to |pending_service_|. |
| 564 | // |
| 565 | // If it succeeds, we'll end up back here, but with |service| |
| 566 | // pointing at the same service as |pending_service_|. |
| 567 | // |
| 568 | // If it fails, we'll process things in HandleDisconnect. |
| 569 | // |
| 570 | // So we leave |pending_service_| untouched. |
| 571 | VLOG(2) << "WiFi " << link_name() |
| 572 | << " new current Endpoint " |
| 573 | << endpoint.bssid_string() |
| 574 | << " is not part of pending service " |
| 575 | << pending_service_->friendly_name(); |
| 576 | |
| 577 | // Sanity check: if we didn't roam onto |pending_service_|, we |
| 578 | // should still be on |current_service_|. |
| 579 | if (service.get() != current_service_.get()) { |
| 580 | LOG(WARNING) << "WiFi " << link_name() |
| 581 | << " new current Endpoint " |
| 582 | << endpoint.bssid_string() |
| 583 | << " is neither part of pending service " |
| 584 | << pending_service_->friendly_name() |
| 585 | << " nor part of current service " |
| 586 | << (current_service_.get() ? |
| 587 | current_service_->friendly_name() : |
| 588 | "(NULL)"); |
| 589 | // Although we didn't expect to get here, we should keep |
| 590 | // |current_service_| in sync with what supplicant has done. |
| 591 | current_service_ = service; |
| 592 | } |
| 593 | return; |
| 594 | } |
| 595 | |
| 596 | if (pending_service_.get()) { |
| 597 | // We assume service.get() == pending_service_.get() here, because |
| 598 | // of the return in the previous if clause. |
| 599 | // |
| 600 | // Boring case: we've connected to the service we asked |
| 601 | // for. Simply update |current_service_| and |pending_service_|. |
| 602 | current_service_ = service; |
| 603 | pending_service_ = NULL; |
| 604 | return; |
| 605 | } |
| 606 | |
| 607 | // |pending_service_| was NULL, so we weren't attempting to connect |
| 608 | // to a new Service. Sanity check that we're still on |
| 609 | // |current_service_|. |
| 610 | if (service.get() != current_service_.get()) { |
| 611 | LOG(WARNING) |
| 612 | << "WiFi " << link_name() |
| 613 | << " new current Endpoint " |
| 614 | << endpoint.bssid_string() |
| 615 | << (current_service_.get() ? |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 616 | StringPrintf(" is not part of current service %s", |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 617 | current_service_->friendly_name().c_str()) : |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 618 | " with no current service"); |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 619 | // We didn't expect to be here, but let's cope as well as we |
| 620 | // can. Update |current_service_| to keep it in sync with |
| 621 | // supplicant. |
| 622 | current_service_ = service; |
| 623 | return; |
| 624 | } |
| 625 | |
| 626 | // At this point, we know that |pending_service_| was NULL, and that |
| 627 | // we're still on |current_service_|. This is the most boring case |
| 628 | // of all, because there's no state to update here. |
| 629 | return; |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 630 | } |
| 631 | |
Paul Stewart | a41e38d | 2011-11-11 07:47:29 -0800 | [diff] [blame] | 632 | WiFiServiceRefPtr WiFi::FindService(const vector<uint8_t> &ssid, |
| 633 | const string &mode, |
| 634 | const string &security) const { |
Paul Stewart | 6ab23a9 | 2011-11-09 17:17:47 -0800 | [diff] [blame] | 635 | for (vector<WiFiServiceRefPtr>::const_iterator it = services_.begin(); |
| 636 | it != services_.end(); |
| 637 | ++it) { |
| 638 | if ((*it)->ssid() == ssid && (*it)->mode() == mode && |
| 639 | (*it)->IsSecurityMatch(security)) { |
| 640 | return *it; |
| 641 | } |
| 642 | } |
| 643 | return NULL; |
| 644 | } |
| 645 | |
mukesh agrawal | 165e614 | 2011-11-22 02:22:56 +0000 | [diff] [blame] | 646 | WiFiServiceRefPtr WiFi::FindServiceForEndpoint(const WiFiEndpoint &endpoint) { |
| 647 | return FindService(endpoint.ssid(), |
| 648 | endpoint.network_mode(), |
| 649 | endpoint.security_mode()); |
| 650 | } |
| 651 | |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 652 | ByteArrays WiFi::GetHiddenSSIDList() { |
| 653 | // Create a unique set of hidden SSIDs. |
| 654 | set<ByteArray> hidden_ssids_set; |
| 655 | for (vector<WiFiServiceRefPtr>::const_iterator it = services_.begin(); |
| 656 | it != services_.end(); |
| 657 | ++it) { |
Paul Stewart | a41e38d | 2011-11-11 07:47:29 -0800 | [diff] [blame] | 658 | if ((*it)->hidden_ssid() && (*it)->favorite()) { |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 659 | hidden_ssids_set.insert((*it)->ssid()); |
| 660 | } |
| 661 | } |
Paul Stewart | a41e38d | 2011-11-11 07:47:29 -0800 | [diff] [blame] | 662 | VLOG(2) << "Found " << hidden_ssids_set.size() << " hidden services"; |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 663 | ByteArrays hidden_ssids(hidden_ssids_set.begin(), hidden_ssids_set.end()); |
| 664 | if (!hidden_ssids.empty()) { |
| 665 | // TODO(pstew): Devise a better method for time-sharing with SSIDs that do |
| 666 | // not fit in. |
| 667 | if (hidden_ssids.size() >= wpa_supplicant::kScanMaxSSIDsPerScan) { |
| 668 | hidden_ssids.erase( |
| 669 | hidden_ssids.begin() + wpa_supplicant::kScanMaxSSIDsPerScan - 1, |
| 670 | hidden_ssids.end()); |
| 671 | } |
| 672 | // Add Broadcast SSID, signified by an empty ByteArray. If we specify |
| 673 | // SSIDs to wpa_supplicant, we need to explicitly specify the default |
| 674 | // behavior of doing a broadcast probe. |
| 675 | hidden_ssids.push_back(ByteArray()); |
| 676 | } |
| 677 | return hidden_ssids; |
| 678 | } |
| 679 | |
Paul Stewart | a41e38d | 2011-11-11 07:47:29 -0800 | [diff] [blame] | 680 | bool WiFi::LoadHiddenServices(StoreInterface *storage) { |
| 681 | bool created_hidden_service = false; |
| 682 | set<string> groups = storage->GetGroupsWithKey(flimflam::kWifiHiddenSsid); |
| 683 | for (set<string>::iterator it = groups.begin(); it != groups.end(); ++it) { |
| 684 | bool is_hidden = false; |
| 685 | if (!storage->GetBool(*it, flimflam::kWifiHiddenSsid, &is_hidden)) { |
| 686 | VLOG(2) << "Storage group " << *it << " returned by GetGroupsWithKey " |
| 687 | << "failed for GetBool(" << flimflam::kWifiHiddenSsid |
| 688 | << ") -- possible non-bool key"; |
| 689 | continue; |
| 690 | } |
| 691 | if (!is_hidden) { |
| 692 | continue; |
| 693 | } |
| 694 | string ssid_hex; |
| 695 | vector<uint8_t> ssid_bytes; |
| 696 | if (!storage->GetString(*it, flimflam::kSSIDProperty, &ssid_hex) || |
| 697 | !base::HexStringToBytes(ssid_hex, &ssid_bytes)) { |
| 698 | VLOG(2) << "Hidden network is missing/invalid \"" |
| 699 | << flimflam::kSSIDProperty << "\" property"; |
| 700 | continue; |
| 701 | } |
| 702 | string device_address; |
| 703 | string network_mode; |
| 704 | string security; |
| 705 | // It is gross that we have to do this, but the only place we can |
| 706 | // get information about the service is from its storage name. |
| 707 | if (!WiFiService::ParseStorageIdentifier(*it, &device_address, |
| 708 | &network_mode, &security) || |
| 709 | device_address != address()) { |
| 710 | VLOG(2) << "Hidden network has unparsable storage identifier \"" |
| 711 | << *it << "\""; |
| 712 | continue; |
| 713 | } |
| 714 | if (FindService(ssid_bytes, network_mode, security).get()) { |
| 715 | // If service already exists, we have nothing to do, since the |
| 716 | // service has already loaded its configuration from storage. |
| 717 | // This is guaranteed to happen in both cases where Load() is |
| 718 | // called on a device (via a ConfigureDevice() call on the |
| 719 | // profile): |
| 720 | // - In RegisterDevice() the Device hasn't been started yet, |
| 721 | // so it has no services registered, except for those |
| 722 | // created by previous iterations of LoadHiddenService(). |
| 723 | // The latter can happen if another profile in the Manager's |
| 724 | // stack defines the same ssid/mode/security. Even this |
| 725 | // case is okay, since even if the profiles differ |
| 726 | // materially on configuration and credentials, the "right" |
| 727 | // one will be configured in the course of the |
| 728 | // RegisterService() call below. |
| 729 | // - In PushProfile(), all registered services have been |
| 730 | // introduced to the profile via ConfigureService() prior |
| 731 | // to calling ConfigureDevice() on the profile. |
| 732 | continue; |
| 733 | } |
| 734 | WiFiServiceRefPtr service(new WiFiService(control_interface(), |
| 735 | dispatcher(), |
| 736 | manager(), |
| 737 | this, |
| 738 | ssid_bytes, |
| 739 | network_mode, |
| 740 | security, |
| 741 | true)); |
| 742 | services_.push_back(service); |
| 743 | |
| 744 | // By registering the service, the rest of the configuration |
| 745 | // will be loaded from the profile into the service via ConfigureService(). |
| 746 | manager()->RegisterService(service); |
| 747 | |
| 748 | created_hidden_service = true; |
| 749 | } |
| 750 | |
| 751 | // If we are idle and we created a service as a result of opening the |
| 752 | // profile, we should initiate a scan for our new hidden SSID. |
| 753 | if (running() && created_hidden_service && |
| 754 | supplicant_state_ == wpa_supplicant::kInterfaceStateInactive) { |
| 755 | Scan(NULL); |
| 756 | } |
| 757 | |
| 758 | return created_hidden_service; |
| 759 | } |
| 760 | |
mukesh agrawal | b4bc57d | 2011-12-07 01:07:47 +0000 | [diff] [blame] | 761 | void WiFi::BSSAddedTask( |
| 762 | const ::DBus::Path &path, |
| 763 | const map<string, ::DBus::Variant> &properties) { |
| 764 | // TODO(quiche): Write test to verify correct behavior in the case |
| 765 | // where we get multiple BSSAdded events for a single endpoint. |
| 766 | // (Old Endpoint's refcount should fall to zero, and old Endpoint |
| 767 | // should be destroyed.) |
| 768 | // |
| 769 | // Note: we assume that BSSIDs are unique across endpoints. This |
| 770 | // means that if an AP reuses the same BSSID for multiple SSIDs, we |
| 771 | // lose. |
| 772 | WiFiEndpointRefPtr endpoint(new WiFiEndpoint(properties)); |
| 773 | endpoint_by_rpcid_[path] = endpoint; |
| 774 | LOG(INFO) << "Found endpoint. " |
| 775 | << "ssid: " << endpoint->ssid_string() << ", " |
| 776 | << "bssid: " << endpoint->bssid_string() << ", " |
| 777 | << "signal: " << endpoint->signal_strength() << ", " |
| 778 | << "security: " << endpoint->security_mode(); |
| 779 | |
| 780 | if (endpoint->ssid_string().empty()) { |
| 781 | // Don't bother trying to find or create a Service for an Endpoint |
| 782 | // without an SSID. We wouldn't be able to connect to it anyway. |
| 783 | return; |
| 784 | } |
| 785 | |
| 786 | WiFiServiceRefPtr service = FindServiceForEndpoint(*endpoint); |
| 787 | if (service) { |
| 788 | LOG(INFO) << "Assigned endpoint " << endpoint->bssid_string() |
| 789 | << " to service " << service->friendly_name() << "."; |
| 790 | service->AddEndpoint(endpoint); |
| 791 | |
| 792 | if (manager()->HasService(service)) { |
| 793 | manager()->UpdateService(service); |
| 794 | } else { |
| 795 | DCHECK_EQ(1, service->NumEndpoints()); // Expect registered by now if >1. |
| 796 | manager()->RegisterService(service); |
| 797 | } |
| 798 | |
| 799 | return; |
| 800 | } |
| 801 | |
| 802 | const bool hidden_ssid = false; |
| 803 | service = CreateServiceForEndpoint(*endpoint, hidden_ssid); |
| 804 | LOG(INFO) << "New service " << service->GetRpcIdentifier() |
| 805 | << " (" << service->friendly_name() << ")"; |
| 806 | service->AddEndpoint(endpoint); |
| 807 | manager()->RegisterService(service); |
| 808 | } |
| 809 | |
| 810 | void WiFi::BSSRemovedTask(const ::DBus::Path &path) { |
| 811 | EndpointMap::iterator i = endpoint_by_rpcid_.find(path); |
| 812 | if (i == endpoint_by_rpcid_.end()) { |
| 813 | LOG(WARNING) << "WiFi " << link_name() |
| 814 | << " could not find BSS " << path |
| 815 | << " to remove."; |
| 816 | return; |
| 817 | } |
| 818 | |
| 819 | WiFiEndpointRefPtr endpoint = i->second; |
| 820 | CHECK(endpoint); |
| 821 | endpoint_by_rpcid_.erase(i); |
| 822 | |
| 823 | if (endpoint->ssid_string().empty()) { |
| 824 | // In BSSAdded, we don't create Services for Endpoints with empty |
| 825 | // SSIDs. So don't bother looking for a Service to update. |
| 826 | return; |
| 827 | } |
| 828 | |
| 829 | WiFiServiceRefPtr service = FindServiceForEndpoint(*endpoint); |
| 830 | CHECK(service); |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 831 | VLOG(2) << "Removing Endpoint " << endpoint->bssid_string() |
| 832 | << " from Service " << service->friendly_name(); |
mukesh agrawal | b4bc57d | 2011-12-07 01:07:47 +0000 | [diff] [blame] | 833 | service->RemoveEndpoint(endpoint); |
mukesh agrawal | b4bc57d | 2011-12-07 01:07:47 +0000 | [diff] [blame] | 834 | |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 835 | bool disconnect_service = !service->HasEndpoints() && |
| 836 | (service->IsConnecting() || service->IsConnected()); |
| 837 | bool forget_service = |
| 838 | // Forget Services without Endpoints, except that we always keep |
| 839 | // hidden services around. (We need them around to populate the |
| 840 | // hidden SSIDs list.) |
| 841 | !service->HasEndpoints() && !service->hidden_ssid(); |
| 842 | bool deregister_service = |
| 843 | // Only deregister a Service if we're forgetting it. Otherwise, |
| 844 | // Manager can't keep our configuration up-to-date (as Profiles |
| 845 | // change). |
| 846 | forget_service; |
| 847 | |
| 848 | if (disconnect_service) { |
| 849 | DisconnectFrom(service); |
| 850 | } |
| 851 | |
| 852 | if (deregister_service) { |
| 853 | manager()->DeregisterService(service); |
| 854 | } else { |
| 855 | manager()->UpdateService(service); |
| 856 | } |
| 857 | |
| 858 | if (forget_service) { |
| 859 | vector<WiFiServiceRefPtr>::iterator it; |
| 860 | it = std::find(services_.begin(), services_.end(), service); |
| 861 | if (it != services_.end()) { |
| 862 | services_.erase(it); |
| 863 | } |
| 864 | } |
mukesh agrawal | b4bc57d | 2011-12-07 01:07:47 +0000 | [diff] [blame] | 865 | } |
| 866 | |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 867 | void WiFi::PropertiesChangedTask( |
| 868 | const map<string, ::DBus::Variant> &properties) { |
| 869 | // TODO(quiche): Handle changes in other properties (e.g. signal |
| 870 | // strength). |
| 871 | |
| 872 | // Note that order matters here. In particular, we want to process |
| 873 | // changes in the current BSS before changes in state. This is so |
| 874 | // that we update the state of the correct Endpoint/Service. |
| 875 | |
| 876 | map<string, ::DBus::Variant>::const_iterator properties_it = |
| 877 | properties.find(wpa_supplicant::kInterfacePropertyCurrentBSS); |
| 878 | if (properties_it != properties.end()) { |
| 879 | CurrentBSSChanged(properties_it->second.reader().get_path()); |
| 880 | } |
| 881 | |
| 882 | properties_it = properties.find(wpa_supplicant::kInterfacePropertyState); |
| 883 | if (properties_it != properties.end()) { |
| 884 | StateChanged(properties_it->second.reader().get_string()); |
| 885 | } |
| 886 | } |
| 887 | |
mukesh agrawal | dc42bb3 | 2011-07-28 10:40:26 -0700 | [diff] [blame] | 888 | void WiFi::ScanDoneTask() { |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 889 | LOG(INFO) << __func__; |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 890 | scan_pending_ = false; |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 891 | } |
| 892 | |
mukesh agrawal | 3239932 | 2011-09-01 10:53:43 -0700 | [diff] [blame] | 893 | void WiFi::ScanTask() { |
| 894 | VLOG(2) << "WiFi " << link_name() << " scan requested."; |
Paul Stewart | a41e38d | 2011-11-11 07:47:29 -0800 | [diff] [blame] | 895 | map<string, DBus::Variant> scan_args; |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 896 | scan_args[wpa_supplicant::kPropertyScanType].writer(). |
| 897 | append_string(wpa_supplicant::kScanTypeActive); |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 898 | |
| 899 | ByteArrays hidden_ssids = GetHiddenSSIDList(); |
| 900 | if (!hidden_ssids.empty()) { |
| 901 | scan_args[wpa_supplicant::kPropertyScanSSIDs] = |
| 902 | DBusAdaptor::ByteArraysToVariant(hidden_ssids); |
| 903 | } |
| 904 | |
Gaurav Shah | f8721ee | 2011-11-07 09:12:46 -0800 | [diff] [blame] | 905 | // TODO(quiche): Indicate scanning in UI. crosbug.com/14887 |
mukesh agrawal | 3239932 | 2011-09-01 10:53:43 -0700 | [diff] [blame] | 906 | supplicant_interface_proxy_->Scan(scan_args); |
| 907 | scan_pending_ = true; |
| 908 | } |
| 909 | |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 910 | void WiFi::StateChanged(const string &new_state) { |
| 911 | const string old_state = supplicant_state_; |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 912 | supplicant_state_ = new_state; |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 913 | LOG(INFO) << "WiFi " << link_name() << " " << __func__ << " " |
| 914 | << old_state << " -> " << new_state; |
| 915 | |
| 916 | WiFiService *affected_service; |
| 917 | // Identify the service to which the state change applies. If |
| 918 | // |pending_service_| is non-NULL, then the state change applies to |
| 919 | // |pending_service_|. Otherwise, it applies to |current_service_|. |
| 920 | // |
| 921 | // This policy is driven by the fact that the |pending_service_| |
| 922 | // doesn't become the |current_service_| until wpa_supplicant |
| 923 | // reports a CurrentBSS change to the |pending_service_|. And the |
| 924 | // CurrentBSS change won't we reported until the |pending_service_| |
| 925 | // reaches the wpa_supplicant::kInterfaceStateCompleted state. |
| 926 | affected_service = |
| 927 | pending_service_.get() ? pending_service_.get() : current_service_.get(); |
| 928 | if (!affected_service) { |
| 929 | VLOG(2) << "WiFi " << link_name() << " " << __func__ |
| 930 | << " with no service"; |
| 931 | return; |
| 932 | } |
| 933 | |
| 934 | if (new_state == wpa_supplicant::kInterfaceStateCompleted) { |
| 935 | // TODO(quiche): Check if we have a race with LinkEvent and/or |
| 936 | // IPConfigUpdatedCallback here. |
| 937 | |
| 938 | // After 802.11 negotiation is Completed, we start Configuring |
| 939 | // IP connectivity. |
| 940 | affected_service->SetState(Service::kStateConfiguring); |
| 941 | } else if (new_state == wpa_supplicant::kInterfaceStateAssociated) { |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 942 | // TODO(quiche): Resolve race with LinkEvent. It's possible for us |
| 943 | // to receive this state notification after LinkEvent. In that case, |
| 944 | // our state transitions are Associating -> Configuring -> |
| 945 | // Associating -> Configuring -> Ready. (crosbug.com/22831) |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 946 | affected_service->SetState(Service::kStateAssociating); |
| 947 | } else if (new_state == wpa_supplicant::kInterfaceStateAuthenticating || |
| 948 | new_state == wpa_supplicant::kInterfaceStateAssociating || |
| 949 | new_state == wpa_supplicant::kInterfaceState4WayHandshake || |
| 950 | new_state == wpa_supplicant::kInterfaceStateGroupHandshake) { |
| 951 | // Ignore transitions into these states from Completed, to avoid |
| 952 | // bothering the user when roaming, or re-keying. |
| 953 | if (old_state != wpa_supplicant::kInterfaceStateCompleted) |
| 954 | affected_service->SetState(Service::kStateAssociating); |
| 955 | // TOOD(quiche): On backwards transitions, we should probably set |
| 956 | // a timeout for getting back into the completed state. At present, |
| 957 | // we depend on wpa_supplicant eventually reporting that CurrentBSS |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 958 | // has changed. But there may be cases where that signal is not sent. |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 959 | // (crosbug.com/23207) |
| 960 | } else { |
| 961 | // Other transitions do not affect Service state. |
| 962 | // |
| 963 | // Note in particular that we ignore a State change into |
| 964 | // kInterfaceStateDisconnected, in favor of observing the corresponding |
| 965 | // change in CurrentBSS. |
| 966 | } |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 967 | } |
| 968 | |
| 969 | // Used by Manager. |
mukesh agrawal | 7a4e400 | 2011-09-06 11:26:05 -0700 | [diff] [blame] | 970 | WiFiServiceRefPtr WiFi::GetService(const KeyValueStore &args, Error *error) { |
| 971 | if (!args.ContainsString(flimflam::kTypeProperty)) { |
| 972 | error->Populate(Error::kInvalidArguments, kManagerErrorTypeRequired); |
| 973 | return NULL; |
| 974 | } |
| 975 | |
| 976 | if (args.GetString(flimflam::kTypeProperty) != flimflam::kTypeWifi) { |
| 977 | error->Populate(Error::kNotSupported, kManagerErrorUnsupportedServiceType); |
| 978 | return NULL; |
| 979 | } |
| 980 | |
| 981 | if (args.ContainsString(flimflam::kModeProperty) && |
| 982 | args.GetString(flimflam::kModeProperty) != |
| 983 | flimflam::kModeManaged) { |
| 984 | error->Populate(Error::kNotSupported, kManagerErrorUnsupportedServiceMode); |
| 985 | return NULL; |
| 986 | } |
| 987 | |
| 988 | if (!args.ContainsString(flimflam::kSSIDProperty)) { |
| 989 | error->Populate(Error::kInvalidArguments, kManagerErrorSSIDRequired); |
| 990 | return NULL; |
| 991 | } |
| 992 | |
| 993 | string ssid = args.GetString(flimflam::kSSIDProperty); |
| 994 | if (ssid.length() < 1) { |
| 995 | error->Populate(Error::kInvalidNetworkName, kManagerErrorSSIDTooShort); |
| 996 | return NULL; |
| 997 | } |
| 998 | |
| 999 | if (ssid.length() > IEEE_80211::kMaxSSIDLen) { |
| 1000 | error->Populate(Error::kInvalidNetworkName, kManagerErrorSSIDTooLong); |
| 1001 | return NULL; |
| 1002 | } |
| 1003 | |
| 1004 | string security_method; |
| 1005 | if (args.ContainsString(flimflam::kSecurityProperty)) { |
| 1006 | security_method = args.GetString(flimflam::kSecurityProperty); |
| 1007 | } else { |
| 1008 | security_method = flimflam::kSecurityNone; |
| 1009 | } |
| 1010 | |
| 1011 | if (security_method != flimflam::kSecurityNone && |
| 1012 | security_method != flimflam::kSecurityWep && |
| 1013 | security_method != flimflam::kSecurityPsk && |
| 1014 | security_method != flimflam::kSecurityWpa && |
| 1015 | security_method != flimflam::kSecurityRsn && |
| 1016 | security_method != flimflam::kSecurity8021x) { |
| 1017 | error->Populate(Error::kNotSupported, |
| 1018 | kManagerErrorUnsupportedSecurityMode); |
| 1019 | return NULL; |
| 1020 | } |
| 1021 | |
| 1022 | if ((security_method == flimflam::kSecurityWep || |
| 1023 | security_method == flimflam::kSecurityPsk || |
| 1024 | security_method == flimflam::kSecurityWpa || |
| 1025 | security_method == flimflam::kSecurityRsn) && |
| 1026 | !args.ContainsString(flimflam::kPassphraseProperty)) { |
| 1027 | error->Populate(Error::kInvalidArguments, |
| 1028 | kManagerErrorPassphraseRequired); |
| 1029 | return NULL; |
| 1030 | } |
| 1031 | |
Paul Stewart | 6ab23a9 | 2011-11-09 17:17:47 -0800 | [diff] [blame] | 1032 | bool hidden_ssid; |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 1033 | if (args.ContainsBool(flimflam::kWifiHiddenSsid)) { |
| 1034 | hidden_ssid = args.GetBool(flimflam::kWifiHiddenSsid); |
Paul Stewart | 6ab23a9 | 2011-11-09 17:17:47 -0800 | [diff] [blame] | 1035 | } else { |
| 1036 | // If the service is not found, and the caller hasn't specified otherwise, |
| 1037 | // we assume this is is a hidden network. |
| 1038 | hidden_ssid = true; |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 1039 | } |
| 1040 | |
Paul Stewart | 6ab23a9 | 2011-11-09 17:17:47 -0800 | [diff] [blame] | 1041 | vector<uint8_t> ssid_bytes(ssid.begin(), ssid.end()); |
| 1042 | WiFiServiceRefPtr service(FindService(ssid_bytes, flimflam::kModeManaged, |
| 1043 | security_method)); |
| 1044 | if (!service.get()) { |
mukesh agrawal | 1a05626 | 2011-10-05 14:36:54 -0700 | [diff] [blame] | 1045 | service = new WiFiService(control_interface(), |
| 1046 | dispatcher(), |
| 1047 | manager(), |
| 1048 | this, |
Paul Stewart | 6ab23a9 | 2011-11-09 17:17:47 -0800 | [diff] [blame] | 1049 | ssid_bytes, |
mukesh agrawal | 1a05626 | 2011-10-05 14:36:54 -0700 | [diff] [blame] | 1050 | flimflam::kModeManaged, |
Paul Stewart | ced6a0b | 2011-11-08 15:32:04 -0800 | [diff] [blame] | 1051 | security_method, |
| 1052 | hidden_ssid); |
| 1053 | services_.push_back(service); |
mukesh agrawal | 261daca | 2011-12-02 18:56:56 +0000 | [diff] [blame] | 1054 | // NB: We do not register the newly created Service with the Manager. |
| 1055 | // The Service will be registered if/when we find Endpoints for it. |
mukesh agrawal | 7a4e400 | 2011-09-06 11:26:05 -0700 | [diff] [blame] | 1056 | } |
| 1057 | |
mukesh agrawal | 1a05626 | 2011-10-05 14:36:54 -0700 | [diff] [blame] | 1058 | if (security_method == flimflam::kSecurityWep || |
| 1059 | security_method == flimflam::kSecurityPsk || |
| 1060 | security_method == flimflam::kSecurityWpa || |
| 1061 | security_method == flimflam::kSecurityRsn) { |
| 1062 | service->SetPassphrase(args.GetString(flimflam::kPassphraseProperty), |
| 1063 | error); |
| 1064 | if (error->IsFailure()) { |
| 1065 | return NULL; |
| 1066 | } |
| 1067 | } |
| 1068 | |
mukesh agrawal | 7ec7131 | 2011-11-10 02:08:26 +0000 | [diff] [blame] | 1069 | // TODO(quiche): Apply any other configuration parameters. |
mukesh agrawal | 7a4e400 | 2011-09-06 11:26:05 -0700 | [diff] [blame] | 1070 | |
| 1071 | return service; |
| 1072 | } |
| 1073 | |
mukesh agrawal | 4d0401c | 2012-01-06 16:05:31 -0800 | [diff] [blame] | 1074 | void WiFi::HelpRegisterDerivedInt32( |
| 1075 | PropertyStore *store, |
| 1076 | const string &name, |
| 1077 | int32(WiFi::*get)(Error *error), |
| 1078 | void(WiFi::*set)(const int32 &value, Error *error)) { |
| 1079 | store->RegisterDerivedInt32( |
| 1080 | name, |
| 1081 | Int32Accessor(new CustomAccessor<WiFi, int32>(this, get, set))); |
| 1082 | } |
| 1083 | |
| 1084 | void WiFi::HelpRegisterDerivedString( |
| 1085 | PropertyStore *store, |
| 1086 | const string &name, |
| 1087 | string(WiFi::*get)(Error *error), |
| 1088 | void(WiFi::*set)(const string &value, Error *error)) { |
| 1089 | store->RegisterDerivedString( |
| 1090 | name, |
| 1091 | StringAccessor(new CustomAccessor<WiFi, string>(this, get, set))); |
| 1092 | } |
| 1093 | |
| 1094 | void WiFi::HelpRegisterDerivedUint16( |
| 1095 | PropertyStore *store, |
| 1096 | const string &name, |
| 1097 | uint16(WiFi::*get)(Error *error), |
| 1098 | void(WiFi::*set)(const uint16 &value, Error *error)) { |
| 1099 | store->RegisterDerivedUint16( |
| 1100 | name, |
| 1101 | Uint16Accessor(new CustomAccessor<WiFi, uint16>(this, get, set))); |
| 1102 | } |
| 1103 | |
Paul Stewart | b50f0b9 | 2011-05-16 16:31:42 -0700 | [diff] [blame] | 1104 | } // namespace shill |