Thieu Le | e41a72d | 2012-02-06 20:46:51 +0000 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -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 | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 5 | #include "shill/wifi_endpoint.h" |
| 6 | |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 7 | #include <algorithm> |
| 8 | |
Eric Shienbrood | 3e20a23 | 2012-02-16 11:35:56 -0500 | [diff] [blame] | 9 | #include <base/stl_util.h> |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 10 | #include <base/stringprintf.h> |
| 11 | #include <base/string_number_conversions.h> |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 12 | #include <base/string_util.h> |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 13 | #include <chromeos/dbus/service_constants.h> |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 14 | |
Thieu Le | 1df7f4e | 2012-02-10 15:21:45 -0800 | [diff] [blame] | 15 | #include "shill/ieee80211.h" |
Christopher Wiley | b691efd | 2012-08-09 13:51:51 -0700 | [diff] [blame] | 16 | #include "shill/logging.h" |
mukesh agrawal | f6b3209 | 2013-04-10 15:49:55 -0700 | [diff] [blame] | 17 | #include "shill/metrics.h" |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 18 | #include "shill/proxy_factory.h" |
| 19 | #include "shill/supplicant_bss_proxy_interface.h" |
mukesh agrawal | 16bc1b8 | 2012-02-09 18:38:26 -0800 | [diff] [blame] | 20 | #include "shill/wifi.h" |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 21 | #include "shill/wifi_endpoint.h" |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 22 | #include "shill/wpa_supplicant.h" |
| 23 | |
| 24 | using std::map; |
| 25 | using std::set; |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 26 | using std::string; |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 27 | using std::vector; |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 28 | |
| 29 | namespace shill { |
| 30 | |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 31 | WiFiEndpoint::WiFiEndpoint(ProxyFactory *proxy_factory, |
| 32 | const WiFiRefPtr &device, |
| 33 | const string &rpc_id, |
| 34 | const map<string, ::DBus::Variant> &properties) |
| 35 | : frequency_(0), |
mukesh agrawal | f6b3209 | 2013-04-10 15:49:55 -0700 | [diff] [blame] | 36 | physical_mode_(Metrics::kWiFiNetworkPhyModeUndef), |
Paul Stewart | a5e7d5f | 2013-01-09 18:06:15 -0800 | [diff] [blame] | 37 | ieee80211w_required_(false), |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 38 | proxy_factory_(proxy_factory), |
| 39 | device_(device), |
| 40 | rpc_id_(rpc_id) { |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 41 | // XXX will segfault on missing properties |
| 42 | ssid_ = |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 43 | properties.find(WPASupplicant::kBSSPropertySSID)->second. |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 44 | operator std::vector<uint8_t>(); |
| 45 | bssid_ = |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 46 | properties.find(WPASupplicant::kBSSPropertyBSSID)->second. |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 47 | operator std::vector<uint8_t>(); |
| 48 | signal_strength_ = |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 49 | properties.find(WPASupplicant::kBSSPropertySignal)->second. |
mukesh agrawal | 1590839 | 2011-11-16 18:29:25 +0000 | [diff] [blame] | 50 | reader().get_int16(); |
Thieu Le | e41a72d | 2012-02-06 20:46:51 +0000 | [diff] [blame] | 51 | map<string, ::DBus::Variant>::const_iterator it = |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 52 | properties.find(WPASupplicant::kBSSPropertyFrequency); |
Thieu Le | e41a72d | 2012-02-06 20:46:51 +0000 | [diff] [blame] | 53 | if (it != properties.end()) |
| 54 | frequency_ = it->second.reader().get_uint16(); |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 55 | |
| 56 | Metrics::WiFiNetworkPhyMode phy_mode = Metrics::kWiFiNetworkPhyModeUndef; |
Paul Stewart | a5e7d5f | 2013-01-09 18:06:15 -0800 | [diff] [blame] | 57 | if (!ParseIEs(properties, &phy_mode, &vendor_information_, |
Paul Stewart | bdbd3c3 | 2013-04-17 09:47:21 -0700 | [diff] [blame] | 58 | &ieee80211w_required_, &country_code_)) { |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 59 | phy_mode = DeterminePhyModeFromFrequency(properties, frequency_); |
| 60 | } |
| 61 | physical_mode_ = phy_mode; |
| 62 | |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 63 | network_mode_ = ParseMode( |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 64 | properties.find(WPASupplicant::kBSSPropertyMode)->second); |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 65 | set_security_mode(ParseSecurity(properties, &security_flags_)); |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 66 | has_rsn_property_ = ContainsKey(properties, WPASupplicant::kPropertyRSN); |
| 67 | has_wpa_property_ = ContainsKey(properties, WPASupplicant::kPropertyWPA); |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 68 | |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 69 | if (network_mode_.empty()) { |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 70 | // XXX log error? |
| 71 | } |
| 72 | |
| 73 | ssid_string_ = string(ssid_.begin(), ssid_.end()); |
mukesh agrawal | 16bc1b8 | 2012-02-09 18:38:26 -0800 | [diff] [blame] | 74 | WiFi::SanitizeSSID(&ssid_string_); |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 75 | ssid_hex_ = base::HexEncode(&(*ssid_.begin()), ssid_.size()); |
| 76 | bssid_string_ = StringPrintf("%02x:%02x:%02x:%02x:%02x:%02x", |
| 77 | bssid_[0], bssid_[1], bssid_[2], |
| 78 | bssid_[3], bssid_[4], bssid_[5]); |
| 79 | bssid_hex_ = base::HexEncode(&(*bssid_.begin()), bssid_.size()); |
| 80 | } |
| 81 | |
| 82 | WiFiEndpoint::~WiFiEndpoint() {} |
| 83 | |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 84 | void WiFiEndpoint::Start() { |
| 85 | supplicant_bss_proxy_.reset( |
| 86 | proxy_factory_->CreateSupplicantBSSProxy( |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 87 | this, rpc_id_, WPASupplicant::kDBusAddr)); |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | void WiFiEndpoint::PropertiesChanged( |
| 91 | const map<string, ::DBus::Variant> &properties) { |
Darin Petkov | 3abc3be | 2012-06-27 10:48:23 +0200 | [diff] [blame] | 92 | SLOG(WiFi, 2) << __func__; |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 93 | bool should_notify = false; |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 94 | map<string, ::DBus::Variant>::const_iterator properties_it = |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 95 | properties.find(WPASupplicant::kBSSPropertySignal); |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 96 | if (properties_it != properties.end()) { |
| 97 | signal_strength_ = properties_it->second.reader().get_int16(); |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 98 | SLOG(WiFi, 2) << "WiFiEndpoint " << bssid_string_ << " signal is now " |
| 99 | << signal_strength_; |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 100 | should_notify = true; |
| 101 | } |
| 102 | |
| 103 | properties_it = properties.find(WPASupplicant::kBSSPropertyMode); |
| 104 | if (properties_it != properties.end()) { |
| 105 | string new_mode = ParseMode(properties_it->second); |
| 106 | if (new_mode != network_mode_) { |
| 107 | network_mode_ = new_mode; |
| 108 | SLOG(WiFi, 2) << "WiFiEndpoint " << bssid_string_ << " mode is now " |
| 109 | << network_mode_; |
| 110 | should_notify = true; |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | const char *new_security_mode = ParseSecurity(properties, &security_flags_); |
| 115 | if (new_security_mode != security_mode()) { |
| 116 | set_security_mode(new_security_mode); |
| 117 | SLOG(WiFi, 2) << "WiFiEndpoint " << bssid_string_ << " security is now " |
| 118 | << security_mode(); |
| 119 | should_notify = true; |
| 120 | } |
| 121 | |
| 122 | if (should_notify) { |
Paul Stewart | 3c50401 | 2013-01-17 17:49:58 -0800 | [diff] [blame] | 123 | device_->NotifyEndpointChanged(this); |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 124 | } |
| 125 | } |
| 126 | |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 127 | |
| 128 | map<string, string> WiFiEndpoint::GetVendorInformation() const { |
| 129 | map<string, string> vendor_information; |
| 130 | if (!vendor_information_.wps_manufacturer.empty()) { |
| 131 | vendor_information[kVendorWPSManufacturerProperty] = |
| 132 | vendor_information_.wps_manufacturer; |
| 133 | } |
| 134 | if (!vendor_information_.wps_model_name.empty()) { |
| 135 | vendor_information[kVendorWPSModelNameProperty] = |
| 136 | vendor_information_.wps_model_name; |
| 137 | } |
| 138 | if (!vendor_information_.wps_model_number.empty()) { |
| 139 | vendor_information[kVendorWPSModelNumberProperty] = |
| 140 | vendor_information_.wps_model_number; |
| 141 | } |
| 142 | if (!vendor_information_.wps_device_name.empty()) { |
| 143 | vendor_information[kVendorWPSDeviceNameProperty] = |
| 144 | vendor_information_.wps_device_name; |
| 145 | } |
| 146 | if (!vendor_information_.oui_list.empty()) { |
| 147 | vector<string> oui_list; |
| 148 | set<uint32_t>::const_iterator it; |
| 149 | for (it = vendor_information_.oui_list.begin(); |
| 150 | it != vendor_information_.oui_list.end(); |
| 151 | ++it) { |
| 152 | oui_list.push_back( |
| 153 | StringPrintf("%02x-%02x-%02x", |
| 154 | *it >> 16, (*it >> 8) & 0xff, *it & 0xff)); |
| 155 | } |
| 156 | vendor_information[kVendorOUIListProperty] = |
| 157 | JoinString(oui_list, ' '); |
| 158 | } |
| 159 | return vendor_information; |
| 160 | } |
| 161 | |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 162 | // static |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 163 | uint32_t WiFiEndpoint::ModeStringToUint(const string &mode_string) { |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 164 | if (mode_string == flimflam::kModeManaged) |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 165 | return WPASupplicant::kNetworkModeInfrastructureInt; |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 166 | else if (mode_string == flimflam::kModeAdhoc) |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 167 | return WPASupplicant::kNetworkModeAdHocInt; |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 168 | else |
| 169 | NOTIMPLEMENTED() << "Shill dos not support " << mode_string |
| 170 | << " mode at this time."; |
| 171 | return 0; |
| 172 | } |
| 173 | |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 174 | const vector<uint8_t> &WiFiEndpoint::ssid() const { |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 175 | return ssid_; |
| 176 | } |
| 177 | |
| 178 | const string &WiFiEndpoint::ssid_string() const { |
| 179 | return ssid_string_; |
| 180 | } |
| 181 | |
| 182 | const string &WiFiEndpoint::ssid_hex() const { |
| 183 | return ssid_hex_; |
| 184 | } |
| 185 | |
| 186 | const string &WiFiEndpoint::bssid_string() const { |
| 187 | return bssid_string_; |
| 188 | } |
| 189 | |
| 190 | const string &WiFiEndpoint::bssid_hex() const { |
| 191 | return bssid_hex_; |
| 192 | } |
| 193 | |
Paul Stewart | bdbd3c3 | 2013-04-17 09:47:21 -0700 | [diff] [blame] | 194 | const string &WiFiEndpoint::country_code() const { |
| 195 | return country_code_; |
| 196 | } |
| 197 | |
Paul Stewart | 3c50401 | 2013-01-17 17:49:58 -0800 | [diff] [blame] | 198 | const WiFiRefPtr &WiFiEndpoint::device() const { |
| 199 | return device_; |
| 200 | } |
| 201 | |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 202 | int16_t WiFiEndpoint::signal_strength() const { |
| 203 | return signal_strength_; |
| 204 | } |
| 205 | |
Thieu Le | e41a72d | 2012-02-06 20:46:51 +0000 | [diff] [blame] | 206 | uint16 WiFiEndpoint::frequency() const { |
| 207 | return frequency_; |
| 208 | } |
| 209 | |
Thieu Le | 1df7f4e | 2012-02-10 15:21:45 -0800 | [diff] [blame] | 210 | uint16 WiFiEndpoint::physical_mode() const { |
| 211 | return physical_mode_; |
| 212 | } |
| 213 | |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 214 | const string &WiFiEndpoint::network_mode() const { |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 215 | return network_mode_; |
| 216 | } |
| 217 | |
| 218 | const string &WiFiEndpoint::security_mode() const { |
| 219 | return security_mode_; |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 220 | } |
| 221 | |
Paul Stewart | a5e7d5f | 2013-01-09 18:06:15 -0800 | [diff] [blame] | 222 | bool WiFiEndpoint::ieee80211w_required() const { |
| 223 | return ieee80211w_required_; |
| 224 | } |
| 225 | |
mukesh agrawal | 43970a2 | 2013-02-15 16:00:07 -0800 | [diff] [blame] | 226 | bool WiFiEndpoint::has_rsn_property() const { |
| 227 | return has_rsn_property_; |
| 228 | } |
| 229 | |
| 230 | bool WiFiEndpoint::has_wpa_property() const { |
| 231 | return has_wpa_property_; |
| 232 | } |
| 233 | |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 234 | // static |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 235 | WiFiEndpoint *WiFiEndpoint::MakeOpenEndpoint(ProxyFactory *proxy_factory, |
| 236 | const WiFiRefPtr &wifi, |
| 237 | const string &ssid, |
mukesh agrawal | e1d90e9 | 2012-02-15 17:36:08 -0800 | [diff] [blame] | 238 | const string &bssid, |
Paul Stewart | 3c50401 | 2013-01-17 17:49:58 -0800 | [diff] [blame] | 239 | const string &network_mode, |
mukesh agrawal | e1d90e9 | 2012-02-15 17:36:08 -0800 | [diff] [blame] | 240 | uint16 frequency, |
| 241 | int16 signal_dbm) { |
mukesh agrawal | 43970a2 | 2013-02-15 16:00:07 -0800 | [diff] [blame] | 242 | return MakeEndpoint(proxy_factory, wifi, ssid, bssid, network_mode, |
| 243 | frequency, signal_dbm, false, false); |
| 244 | } |
| 245 | |
| 246 | // static |
| 247 | WiFiEndpoint *WiFiEndpoint::MakeEndpoint(ProxyFactory *proxy_factory, |
| 248 | const WiFiRefPtr &wifi, |
| 249 | const string &ssid, |
| 250 | const string &bssid, |
| 251 | const string &network_mode, |
| 252 | uint16 frequency, |
| 253 | int16 signal_dbm, |
| 254 | bool has_wpa_property, |
| 255 | bool has_rsn_property) { |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 256 | map <string, ::DBus::Variant> args; |
| 257 | ::DBus::MessageIter writer; |
| 258 | |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 259 | writer = args[WPASupplicant::kBSSPropertySSID].writer(); |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 260 | writer << vector<uint8_t>(ssid.begin(), ssid.end()); |
| 261 | |
| 262 | string bssid_nosep; |
| 263 | RemoveChars(bssid, ":", &bssid_nosep); |
| 264 | vector<uint8_t> bssid_bytes; |
| 265 | base::HexStringToBytes(bssid_nosep, &bssid_bytes); |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 266 | writer = args[WPASupplicant::kBSSPropertyBSSID].writer(); |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 267 | writer << bssid_bytes; |
| 268 | |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 269 | args[WPASupplicant::kBSSPropertySignal].writer().append_int16(signal_dbm); |
| 270 | args[WPASupplicant::kBSSPropertyFrequency].writer().append_uint16(frequency); |
| 271 | args[WPASupplicant::kBSSPropertyMode].writer().append_string( |
Paul Stewart | 3c50401 | 2013-01-17 17:49:58 -0800 | [diff] [blame] | 272 | network_mode.c_str()); |
mukesh agrawal | 43970a2 | 2013-02-15 16:00:07 -0800 | [diff] [blame] | 273 | |
| 274 | if (has_wpa_property) { |
| 275 | ::DBus::MessageIter writer; // local is required; see HACKING |
| 276 | map <string, string> empty_dict; |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 277 | writer = args[WPASupplicant::kPropertyWPA].writer(); |
mukesh agrawal | 43970a2 | 2013-02-15 16:00:07 -0800 | [diff] [blame] | 278 | writer << empty_dict; |
| 279 | } |
| 280 | if (has_rsn_property) { |
| 281 | ::DBus::MessageIter writer; // local is required; see HACKING |
| 282 | map <string, string> empty_dict; |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 283 | writer = args[WPASupplicant::kPropertyRSN].writer(); |
mukesh agrawal | 43970a2 | 2013-02-15 16:00:07 -0800 | [diff] [blame] | 284 | writer << empty_dict; |
| 285 | } |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 286 | |
mukesh agrawal | b20776f | 2012-02-10 16:00:36 -0800 | [diff] [blame] | 287 | return new WiFiEndpoint( |
| 288 | proxy_factory, wifi, bssid, args); // |bssid| fakes an RPC ID |
mukesh agrawal | 8a3188d | 2011-12-01 20:56:44 +0000 | [diff] [blame] | 289 | } |
| 290 | |
| 291 | // static |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 292 | const char *WiFiEndpoint::ParseMode(const string &mode_string) { |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 293 | if (mode_string == WPASupplicant::kNetworkModeInfrastructure) { |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 294 | return flimflam::kModeManaged; |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 295 | } else if (mode_string == WPASupplicant::kNetworkModeAdHoc) { |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 296 | return flimflam::kModeAdhoc; |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 297 | } else if (mode_string == WPASupplicant::kNetworkModeAccessPoint) { |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 298 | NOTREACHED() << "Shill does not support AP mode at this time."; |
| 299 | return NULL; |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 300 | } else { |
Chris Masone | 092df3e | 2011-08-22 09:41:39 -0700 | [diff] [blame] | 301 | NOTREACHED() << "Unknown WiFi endpoint mode!"; |
| 302 | return NULL; |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 303 | } |
| 304 | } |
| 305 | |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 306 | // static |
| 307 | const char *WiFiEndpoint::ParseSecurity( |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 308 | const map<string, ::DBus::Variant> &properties, SecurityFlags *flags) { |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 309 | if (ContainsKey(properties, WPASupplicant::kPropertyRSN)) { |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 310 | // TODO(quiche): check type before casting |
| 311 | const map<string, ::DBus::Variant> rsn_properties( |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 312 | properties.find(WPASupplicant::kPropertyRSN)->second. |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 313 | operator map<string, ::DBus::Variant>()); |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 314 | set<KeyManagement> key_management; |
| 315 | ParseKeyManagementMethods(rsn_properties, &key_management); |
| 316 | flags->rsn_8021x = ContainsKey(key_management, kKeyManagement802_1x); |
| 317 | flags->rsn_psk = ContainsKey(key_management, kKeyManagementPSK); |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 318 | } |
| 319 | |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 320 | if (ContainsKey(properties, WPASupplicant::kPropertyWPA)) { |
mukesh agrawal | 165e614 | 2011-11-22 02:22:56 +0000 | [diff] [blame] | 321 | // TODO(quiche): check type before casting |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 322 | const map<string, ::DBus::Variant> rsn_properties( |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 323 | properties.find(WPASupplicant::kPropertyWPA)->second. |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 324 | operator map<string, ::DBus::Variant>()); |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 325 | set<KeyManagement> key_management; |
| 326 | ParseKeyManagementMethods(rsn_properties, &key_management); |
| 327 | flags->wpa_8021x = ContainsKey(key_management, kKeyManagement802_1x); |
| 328 | flags->wpa_psk = ContainsKey(key_management, kKeyManagementPSK); |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 329 | } |
| 330 | |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 331 | if (ContainsKey(properties, WPASupplicant::kPropertyPrivacy)) { |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 332 | flags->privacy = properties.find(WPASupplicant::kPropertyPrivacy)->second. |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 333 | reader().get_bool(); |
| 334 | } |
| 335 | |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 336 | if (flags->rsn_8021x || flags->wpa_8021x) { |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 337 | return flimflam::kSecurity8021x; |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 338 | } else if (flags->rsn_psk) { |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 339 | return flimflam::kSecurityRsn; |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 340 | } else if (flags->wpa_psk) { |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 341 | return flimflam::kSecurityWpa; |
Paul Stewart | affc055 | 2013-03-25 07:50:15 -0700 | [diff] [blame] | 342 | } else if (flags->privacy) { |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 343 | return flimflam::kSecurityWep; |
| 344 | } else { |
| 345 | return flimflam::kSecurityNone; |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | // static |
| 350 | void WiFiEndpoint::ParseKeyManagementMethods( |
| 351 | const map<string, ::DBus::Variant> &security_method_properties, |
| 352 | set<KeyManagement> *key_management_methods) { |
| 353 | if (!ContainsKey(security_method_properties, |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 354 | WPASupplicant::kSecurityMethodPropertyKeyManagement)) { |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 355 | return; |
| 356 | } |
| 357 | |
| 358 | // TODO(quiche): check type before cast |
| 359 | const vector<string> key_management_vec = |
| 360 | security_method_properties. |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 361 | find(WPASupplicant::kSecurityMethodPropertyKeyManagement)->second. |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 362 | operator vector<string>(); |
| 363 | for (vector<string>::const_iterator it = key_management_vec.begin(); |
| 364 | it != key_management_vec.end(); |
| 365 | ++it) { |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 366 | if (EndsWith(*it, WPASupplicant::kKeyManagementMethodSuffixEAP, true)) { |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 367 | key_management_methods->insert(kKeyManagement802_1x); |
| 368 | } else if ( |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 369 | EndsWith(*it, WPASupplicant::kKeyManagementMethodSuffixPSK, true)) { |
mukesh agrawal | 6e27777 | 2011-09-29 15:04:23 -0700 | [diff] [blame] | 370 | key_management_methods->insert(kKeyManagementPSK); |
| 371 | } |
| 372 | } |
| 373 | } |
| 374 | |
Thieu Le | 1df7f4e | 2012-02-10 15:21:45 -0800 | [diff] [blame] | 375 | // static |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 376 | Metrics::WiFiNetworkPhyMode WiFiEndpoint::DeterminePhyModeFromFrequency( |
Thieu Le | 1df7f4e | 2012-02-10 15:21:45 -0800 | [diff] [blame] | 377 | const map<string, ::DBus::Variant> &properties, uint16 frequency) { |
| 378 | uint32_t max_rate = 0; |
| 379 | map<string, ::DBus::Variant>::const_iterator it = |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 380 | properties.find(WPASupplicant::kBSSPropertyRates); |
Thieu Le | 1df7f4e | 2012-02-10 15:21:45 -0800 | [diff] [blame] | 381 | if (it != properties.end()) { |
| 382 | vector<uint32_t> rates = it->second.operator vector<uint32_t>(); |
| 383 | if (rates.size() > 0) |
| 384 | max_rate = rates[0]; // Rates are sorted in descending order |
| 385 | } |
| 386 | |
| 387 | Metrics::WiFiNetworkPhyMode phy_mode = Metrics::kWiFiNetworkPhyModeUndef; |
Thieu Le | 1df7f4e | 2012-02-10 15:21:45 -0800 | [diff] [blame] | 388 | if (frequency < 3000) { |
| 389 | // 2.4GHz legacy, check for tx rate for 11b-only |
| 390 | // (note 22M is valid) |
| 391 | if (max_rate < 24000000) |
| 392 | phy_mode = Metrics::kWiFiNetworkPhyMode11b; |
| 393 | else |
| 394 | phy_mode = Metrics::kWiFiNetworkPhyMode11g; |
| 395 | } else { |
| 396 | phy_mode = Metrics::kWiFiNetworkPhyMode11a; |
| 397 | } |
| 398 | |
| 399 | return phy_mode; |
| 400 | } |
| 401 | |
| 402 | // static |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 403 | bool WiFiEndpoint::ParseIEs( |
| 404 | const map<string, ::DBus::Variant> &properties, |
| 405 | Metrics::WiFiNetworkPhyMode *phy_mode, |
Paul Stewart | a5e7d5f | 2013-01-09 18:06:15 -0800 | [diff] [blame] | 406 | VendorInformation *vendor_information, |
Paul Stewart | bdbd3c3 | 2013-04-17 09:47:21 -0700 | [diff] [blame] | 407 | bool *ieee80211w_required, string *country_code) { |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 408 | |
| 409 | map<string, ::DBus::Variant>::const_iterator ies_property = |
Paul Stewart | 0654ece | 2013-03-26 15:21:26 -0700 | [diff] [blame] | 410 | properties.find(WPASupplicant::kBSSPropertyIEs); |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 411 | if (ies_property == properties.end()) { |
| 412 | SLOG(WiFi, 2) << __func__ << ": No IE property in BSS."; |
| 413 | return false; |
Thieu Le | 1df7f4e | 2012-02-10 15:21:45 -0800 | [diff] [blame] | 414 | } |
| 415 | |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 416 | vector<uint8_t> ies = ies_property->second.operator vector<uint8_t>(); |
| 417 | |
| 418 | |
| 419 | // Format of an information element: |
| 420 | // 1 1 1 - 252 |
| 421 | // +------+--------+----------------+ |
| 422 | // | Type | Length | Data | |
| 423 | // +------+--------+----------------+ |
| 424 | *phy_mode = Metrics::kWiFiNetworkPhyModeUndef; |
| 425 | bool found_ht = false; |
| 426 | bool found_erp = false; |
| 427 | int ie_len = 0; |
| 428 | vector<uint8_t>::iterator it; |
| 429 | for (it = ies.begin(); |
| 430 | std::distance(it, ies.end()) > 1; // Ensure Length field is within PDU. |
| 431 | it += ie_len) { |
| 432 | ie_len = 2 + *(it + 1); |
| 433 | if (std::distance(it, ies.end()) < ie_len) { |
| 434 | LOG(ERROR) << __func__ << ": IE extends past containing PDU."; |
| 435 | break; |
| 436 | } |
| 437 | switch (*it) { |
Paul Stewart | bdbd3c3 | 2013-04-17 09:47:21 -0700 | [diff] [blame] | 438 | case IEEE_80211::kElemIdCountry: |
| 439 | // Retrieve 2-character country code from the beginning of the element. |
| 440 | if (ie_len >= 4) { |
| 441 | *country_code = string(it + 2, it + 4); |
| 442 | } |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 443 | case IEEE_80211::kElemIdErp: |
| 444 | if (!found_ht) { |
| 445 | *phy_mode = Metrics::kWiFiNetworkPhyMode11g; |
| 446 | } |
| 447 | found_erp = true; |
| 448 | break; |
| 449 | case IEEE_80211::kElemIdHTCap: |
| 450 | case IEEE_80211::kElemIdHTInfo: |
| 451 | *phy_mode = Metrics::kWiFiNetworkPhyMode11n; |
| 452 | found_ht = true; |
| 453 | break; |
Paul Stewart | a5e7d5f | 2013-01-09 18:06:15 -0800 | [diff] [blame] | 454 | case IEEE_80211::kElemIdRSN: |
| 455 | ParseWPACapabilities(it + 2, it + ie_len, ieee80211w_required); |
| 456 | break; |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 457 | case IEEE_80211::kElemIdVendor: |
Paul Stewart | a5e7d5f | 2013-01-09 18:06:15 -0800 | [diff] [blame] | 458 | ParseVendorIE(it + 2, it + ie_len, vendor_information, |
| 459 | ieee80211w_required); |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 460 | break; |
| 461 | } |
| 462 | } |
| 463 | return found_ht || found_erp; |
| 464 | } |
| 465 | |
| 466 | // static |
Paul Stewart | a5e7d5f | 2013-01-09 18:06:15 -0800 | [diff] [blame] | 467 | void WiFiEndpoint::ParseWPACapabilities( |
| 468 | vector<uint8_t>::const_iterator ie, |
| 469 | vector<uint8_t>::const_iterator end, |
| 470 | bool *ieee80211w_required) { |
| 471 | // Format of an RSN Information Element: |
| 472 | // 2 4 |
| 473 | // +------+--------------------+ |
| 474 | // | Type | Group Cipher Suite | |
| 475 | // +------+--------------------+ |
| 476 | // 2 4 * pairwise count |
| 477 | // +-----------------------+---------------------+ |
| 478 | // | Pairwise Cipher Count | Pairwise Ciphers... | |
| 479 | // +-----------------------+---------------------+ |
| 480 | // 2 4 * authkey count |
| 481 | // +-----------------------+---------------------+ |
| 482 | // | AuthKey Suite Count | AuthKey Suites... | |
| 483 | // +-----------------------+---------------------+ |
| 484 | // 2 |
| 485 | // +------------------+ |
| 486 | // | RSN Capabilities | |
| 487 | // +------------------+ |
| 488 | // 2 16 * pmkid count |
| 489 | // +------------------+-------------------+ |
| 490 | // | PMKID Count | PMKIDs... | |
| 491 | // +------------------+-------------------+ |
| 492 | // 4 |
| 493 | // +-------------------------------+ |
| 494 | // | Group Management Cipher Suite | |
| 495 | // +-------------------------------+ |
| 496 | if (std::distance(ie, end) < IEEE_80211::kRSNIECipherCountOffset) { |
| 497 | return; |
| 498 | } |
| 499 | ie += IEEE_80211::kRSNIECipherCountOffset; |
| 500 | |
| 501 | // Advance past the pairwise and authkey ciphers. Each is a little-endian |
| 502 | // cipher count followed by n * cipher_selector. |
| 503 | for (int i = 0; i < IEEE_80211::kRSNIENumCiphers; ++i) { |
| 504 | // Retrieve a little-endian cipher count. |
| 505 | if (std::distance(ie, end) < IEEE_80211::kRSNIECipherCountLen) { |
| 506 | return; |
| 507 | } |
| 508 | uint16 cipher_count = *ie | (*(ie + 1) << 8); |
| 509 | |
| 510 | // Skip over the cipher selectors. |
| 511 | int skip_length = IEEE_80211::kRSNIECipherCountLen + |
| 512 | cipher_count * IEEE_80211::kRSNIESelectorLen; |
| 513 | if (std::distance(ie, end) < skip_length) { |
| 514 | return; |
| 515 | } |
| 516 | ie += skip_length; |
| 517 | } |
| 518 | |
| 519 | if (std::distance(ie, end) < IEEE_80211::kRSNIECapabilitiesLen) { |
| 520 | return; |
| 521 | } |
| 522 | |
| 523 | // Retrieve a little-endian capabilities bitfield. |
| 524 | uint16 capabilities = *ie | (*(ie + 1) << 8); |
| 525 | |
| 526 | if (capabilities & IEEE_80211::kRSNCapabilityFrameProtectionRequired && |
| 527 | ieee80211w_required) { |
| 528 | // Never set this value to false, since there may be multiple RSN |
| 529 | // information elements. |
| 530 | *ieee80211w_required = true; |
| 531 | } |
| 532 | } |
| 533 | |
| 534 | |
| 535 | // static |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 536 | void WiFiEndpoint::ParseVendorIE(vector<uint8_t>::const_iterator ie, |
| 537 | vector<uint8_t>::const_iterator end, |
Paul Stewart | a5e7d5f | 2013-01-09 18:06:15 -0800 | [diff] [blame] | 538 | VendorInformation *vendor_information, |
| 539 | bool *ieee80211w_required) { |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 540 | // Format of an vendor-specific information element (with type |
| 541 | // and length field for the IE removed by the caller): |
| 542 | // 3 1 1 - 248 |
| 543 | // +------------+----------+----------------+ |
| 544 | // | OUI | OUI Type | Data | |
| 545 | // +------------+----------+----------------+ |
| 546 | |
| 547 | if (std::distance(ie, end) < 4) { |
| 548 | LOG(ERROR) << __func__ << ": no room in IE for OUI and type field."; |
| 549 | return; |
| 550 | } |
| 551 | uint32_t oui = (*ie << 16) | (*(ie + 1) << 8) | *(ie + 2); |
| 552 | uint8_t oui_type = *(ie + 3); |
| 553 | ie += 4; |
| 554 | |
| 555 | if (oui == IEEE_80211::kOUIVendorMicrosoft && |
| 556 | oui_type == IEEE_80211::kOUIMicrosoftWPS) { |
| 557 | // Format of a WPS data element: |
| 558 | // 2 2 |
| 559 | // +------+--------+----------------+ |
| 560 | // | Type | Length | Data | |
| 561 | // +------+--------+----------------+ |
| 562 | while (std::distance(ie, end) >= 4) { |
| 563 | int element_type = (*ie << 8) | *(ie + 1); |
| 564 | int element_length = (*(ie + 2) << 8) | *(ie + 3); |
| 565 | ie += 4; |
| 566 | if (std::distance(ie, end) < element_length) { |
| 567 | LOG(ERROR) << __func__ << ": WPS element extends past containing PDU."; |
| 568 | break; |
| 569 | } |
| 570 | string s(ie, ie + element_length); |
| 571 | if (IsStringASCII(s)) { |
| 572 | switch (element_type) { |
| 573 | case IEEE_80211::kWPSElementManufacturer: |
| 574 | vendor_information->wps_manufacturer = s; |
| 575 | break; |
| 576 | case IEEE_80211::kWPSElementModelName: |
| 577 | vendor_information->wps_model_name = s; |
| 578 | break; |
| 579 | case IEEE_80211::kWPSElementModelNumber: |
| 580 | vendor_information->wps_model_number = s; |
| 581 | break; |
| 582 | case IEEE_80211::kWPSElementDeviceName: |
| 583 | vendor_information->wps_device_name = s; |
| 584 | break; |
| 585 | } |
| 586 | } |
| 587 | ie += element_length; |
| 588 | } |
Paul Stewart | a5e7d5f | 2013-01-09 18:06:15 -0800 | [diff] [blame] | 589 | } else if (oui == IEEE_80211::kOUIVendorMicrosoft && |
| 590 | oui_type == IEEE_80211::kOUIMicrosoftWPA) { |
| 591 | ParseWPACapabilities(ie, end, ieee80211w_required); |
Paul Stewart | 72b2fdc | 2012-06-02 08:58:51 -0700 | [diff] [blame] | 592 | } else if (oui != IEEE_80211::kOUIVendorEpigram && |
| 593 | oui != IEEE_80211::kOUIVendorMicrosoft) { |
| 594 | vendor_information->oui_list.insert(oui); |
| 595 | } |
Thieu Le | 1df7f4e | 2012-02-10 15:21:45 -0800 | [diff] [blame] | 596 | } |
| 597 | |
mukesh agrawal | b54601c | 2011-06-07 17:39:22 -0700 | [diff] [blame] | 598 | } // namespace shill |