Darin Petkov | 1c11520 | 2012-03-22 15:35:47 +0100 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "shill/openvpn_management_server.h" |
| 6 | |
Darin Petkov | 4646302 | 2012-03-29 14:57:32 +0200 | [diff] [blame] | 7 | #include <arpa/inet.h> |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 8 | #include <netinet/in.h> |
| 9 | |
| 10 | #include <base/bind.h> |
Darin Petkov | 4646302 | 2012-03-29 14:57:32 +0200 | [diff] [blame] | 11 | #include <base/string_number_conversions.h> |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 12 | #include <base/string_split.h> |
| 13 | #include <base/string_util.h> |
| 14 | #include <base/stringprintf.h> |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 15 | #include <chromeos/dbus/service_constants.h> |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 16 | |
Darin Petkov | 3273da7 | 2013-02-13 11:50:25 +0100 | [diff] [blame] | 17 | #include "shill/error.h" |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 18 | #include "shill/event_dispatcher.h" |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 19 | #include "shill/glib.h" |
Christopher Wiley | b691efd | 2012-08-09 13:51:51 -0700 | [diff] [blame] | 20 | #include "shill/logging.h" |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 21 | #include "shill/openvpn_driver.h" |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 22 | #include "shill/sockets.h" |
| 23 | |
| 24 | using base::Bind; |
Darin Petkov | 4646302 | 2012-03-29 14:57:32 +0200 | [diff] [blame] | 25 | using base::IntToString; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 26 | using base::SplitString; |
| 27 | using base::StringPrintf; |
Darin Petkov | 3273da7 | 2013-02-13 11:50:25 +0100 | [diff] [blame] | 28 | using base::Unretained; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 29 | using std::string; |
| 30 | using std::vector; |
Darin Petkov | 1c11520 | 2012-03-22 15:35:47 +0100 | [diff] [blame] | 31 | |
| 32 | namespace shill { |
| 33 | |
Darin Petkov | aba8932 | 2013-03-11 14:48:22 +0100 | [diff] [blame] | 34 | namespace { |
| 35 | const char kPasswordTagAuth[] = "Auth"; |
| 36 | } // namespace |
| 37 | |
Darin Petkov | 1c049c7 | 2013-03-21 13:15:45 +0100 | [diff] [blame] | 38 | const char OpenVPNManagementServer::kStateReconnecting[] = "RECONNECTING"; |
| 39 | const char OpenVPNManagementServer::kStateResolve[] = "RESOLVE"; |
| 40 | |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 41 | OpenVPNManagementServer::OpenVPNManagementServer(OpenVPNDriver *driver, |
| 42 | GLib *glib) |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 43 | : driver_(driver), |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 44 | glib_(glib), |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 45 | sockets_(NULL), |
| 46 | socket_(-1), |
| 47 | dispatcher_(NULL), |
Darin Petkov | a5e07ef | 2012-07-09 14:27:57 +0200 | [diff] [blame] | 48 | connected_socket_(-1), |
| 49 | hold_waiting_(false), |
| 50 | hold_release_(false) {} |
Darin Petkov | 1c11520 | 2012-03-22 15:35:47 +0100 | [diff] [blame] | 51 | |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 52 | OpenVPNManagementServer::~OpenVPNManagementServer() { |
Darin Petkov | 4646302 | 2012-03-29 14:57:32 +0200 | [diff] [blame] | 53 | OpenVPNManagementServer::Stop(); |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 54 | } |
Darin Petkov | 1c11520 | 2012-03-22 15:35:47 +0100 | [diff] [blame] | 55 | |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 56 | bool OpenVPNManagementServer::Start(EventDispatcher *dispatcher, |
Darin Petkov | 4646302 | 2012-03-29 14:57:32 +0200 | [diff] [blame] | 57 | Sockets *sockets, |
| 58 | vector<string> *options) { |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 59 | SLOG(VPN, 2) << __func__; |
Darin Petkov | e08084d | 2012-06-11 13:19:35 +0200 | [diff] [blame] | 60 | if (IsStarted()) { |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 61 | return true; |
| 62 | } |
| 63 | |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 64 | int socket = sockets->Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 65 | if (socket < 0) { |
| 66 | PLOG(ERROR) << "Unable to create management server socket."; |
| 67 | return false; |
| 68 | } |
| 69 | |
| 70 | struct sockaddr_in addr; |
| 71 | socklen_t addrlen = sizeof(addr); |
| 72 | memset(&addr, 0, sizeof(addr)); |
| 73 | addr.sin_family = AF_INET; |
| 74 | addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
| 75 | if (sockets->Bind( |
| 76 | socket, reinterpret_cast<struct sockaddr *>(&addr), addrlen) < 0 || |
| 77 | sockets->Listen(socket, 1) < 0 || |
| 78 | sockets->GetSockName( |
| 79 | socket, reinterpret_cast<struct sockaddr *>(&addr), &addrlen) < 0) { |
| 80 | PLOG(ERROR) << "Socket setup failed."; |
| 81 | sockets->Close(socket); |
| 82 | return false; |
| 83 | } |
| 84 | |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 85 | SLOG(VPN, 2) << "Listening socket: " << socket; |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 86 | sockets_ = sockets; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 87 | socket_ = socket; |
| 88 | ready_handler_.reset( |
| 89 | dispatcher->CreateReadyHandler( |
Darin Petkov | 3273da7 | 2013-02-13 11:50:25 +0100 | [diff] [blame] | 90 | socket, IOHandler::kModeInput, |
| 91 | Bind(&OpenVPNManagementServer::OnReady, Unretained(this)))); |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 92 | dispatcher_ = dispatcher; |
Darin Petkov | 4646302 | 2012-03-29 14:57:32 +0200 | [diff] [blame] | 93 | |
| 94 | // Append openvpn management API options. |
| 95 | options->push_back("--management"); |
| 96 | options->push_back(inet_ntoa(addr.sin_addr)); |
| 97 | options->push_back(IntToString(ntohs(addr.sin_port))); |
| 98 | options->push_back("--management-client"); |
Darin Petkov | a5e07ef | 2012-07-09 14:27:57 +0200 | [diff] [blame] | 99 | |
| 100 | options->push_back("--management-hold"); |
| 101 | hold_release_ = false; |
| 102 | hold_waiting_ = false; |
| 103 | |
Darin Petkov | 4646302 | 2012-03-29 14:57:32 +0200 | [diff] [blame] | 104 | options->push_back("--management-query-passwords"); |
Darin Petkov | 4646302 | 2012-03-29 14:57:32 +0200 | [diff] [blame] | 105 | if (driver_->AppendValueOption(flimflam::kOpenVPNStaticChallengeProperty, |
| 106 | "--static-challenge", |
| 107 | options)) { |
| 108 | options->push_back("1"); // Force echo. |
| 109 | } |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 110 | return true; |
| 111 | } |
| 112 | |
| 113 | void OpenVPNManagementServer::Stop() { |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 114 | SLOG(VPN, 2) << __func__; |
Darin Petkov | e08084d | 2012-06-11 13:19:35 +0200 | [diff] [blame] | 115 | if (!IsStarted()) { |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 116 | return; |
| 117 | } |
Darin Petkov | 1c049c7 | 2013-03-21 13:15:45 +0100 | [diff] [blame] | 118 | state_.clear(); |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 119 | input_handler_.reset(); |
| 120 | if (connected_socket_ >= 0) { |
| 121 | sockets_->Close(connected_socket_); |
| 122 | connected_socket_ = -1; |
| 123 | } |
| 124 | dispatcher_ = NULL; |
| 125 | ready_handler_.reset(); |
| 126 | if (socket_ >= 0) { |
| 127 | sockets_->Close(socket_); |
| 128 | socket_ = -1; |
| 129 | } |
| 130 | sockets_ = NULL; |
| 131 | } |
| 132 | |
Darin Petkov | a5e07ef | 2012-07-09 14:27:57 +0200 | [diff] [blame] | 133 | void OpenVPNManagementServer::ReleaseHold() { |
| 134 | SLOG(VPN, 2) << __func__; |
| 135 | hold_release_ = true; |
| 136 | if (!hold_waiting_) { |
| 137 | return; |
| 138 | } |
| 139 | LOG(INFO) << "Releasing hold."; |
| 140 | hold_waiting_ = false; |
| 141 | SendHoldRelease(); |
| 142 | } |
| 143 | |
| 144 | void OpenVPNManagementServer::Hold() { |
| 145 | SLOG(VPN, 2) << __func__; |
| 146 | hold_release_ = false; |
| 147 | } |
| 148 | |
Darin Petkov | a42afe3 | 2013-02-05 16:53:52 +0100 | [diff] [blame] | 149 | void OpenVPNManagementServer::Restart() { |
| 150 | LOG(INFO) << "Restart."; |
| 151 | SendSignal("SIGUSR1"); |
| 152 | } |
| 153 | |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 154 | void OpenVPNManagementServer::OnReady(int fd) { |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 155 | SLOG(VPN, 2) << __func__ << "(" << fd << ")"; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 156 | connected_socket_ = sockets_->Accept(fd, NULL, NULL); |
| 157 | if (connected_socket_ < 0) { |
| 158 | PLOG(ERROR) << "Connected socket accept failed."; |
| 159 | return; |
| 160 | } |
| 161 | ready_handler_.reset(); |
Paul Stewart | 5f06a0e | 2012-12-20 11:11:33 -0800 | [diff] [blame] | 162 | input_handler_.reset(dispatcher_->CreateInputHandler( |
Darin Petkov | 3273da7 | 2013-02-13 11:50:25 +0100 | [diff] [blame] | 163 | connected_socket_, |
| 164 | Bind(&OpenVPNManagementServer::OnInput, Unretained(this)), |
| 165 | Bind(&OpenVPNManagementServer::OnInputError, Unretained(this)))); |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 166 | SendState("on"); |
| 167 | } |
| 168 | |
| 169 | void OpenVPNManagementServer::OnInput(InputData *data) { |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 170 | SLOG(VPN, 2) << __func__ << "(" << data->len << ")"; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 171 | vector<string> messages; |
| 172 | SplitString( |
| 173 | string(reinterpret_cast<char *>(data->buf), data->len), '\n', &messages); |
| 174 | for (vector<string>::const_iterator it = messages.begin(); |
Darin Petkov | e08084d | 2012-06-11 13:19:35 +0200 | [diff] [blame] | 175 | it != messages.end() && IsStarted(); ++it) { |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 176 | ProcessMessage(*it); |
| 177 | } |
| 178 | } |
| 179 | |
Darin Petkov | 3273da7 | 2013-02-13 11:50:25 +0100 | [diff] [blame] | 180 | void OpenVPNManagementServer::OnInputError(const Error &error) { |
| 181 | LOG(ERROR) << error; |
Darin Petkov | 1c049c7 | 2013-03-21 13:15:45 +0100 | [diff] [blame] | 182 | driver_->FailService(Service::kFailureInternal, Service::kErrorDetailsNone); |
Darin Petkov | 3273da7 | 2013-02-13 11:50:25 +0100 | [diff] [blame] | 183 | } |
| 184 | |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 185 | void OpenVPNManagementServer::ProcessMessage(const string &message) { |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 186 | SLOG(VPN, 2) << __func__ << "(" << message << ")"; |
Darin Petkov | 92e6561 | 2012-06-10 12:52:10 +0200 | [diff] [blame] | 187 | if (message.empty()) { |
| 188 | return; |
| 189 | } |
| 190 | if (!ProcessInfoMessage(message) && |
| 191 | !ProcessNeedPasswordMessage(message) && |
| 192 | !ProcessFailedPasswordMessage(message) && |
Darin Petkov | 16e7032 | 2013-03-07 15:54:23 +0100 | [diff] [blame] | 193 | !ProcessAuthTokenMessage(message) && |
Darin Petkov | a5e07ef | 2012-07-09 14:27:57 +0200 | [diff] [blame] | 194 | !ProcessStateMessage(message) && |
Darin Petkov | a42afe3 | 2013-02-05 16:53:52 +0100 | [diff] [blame] | 195 | !ProcessHoldMessage(message) && |
| 196 | !ProcessSuccessMessage(message)) { |
Darin Petkov | 16e7032 | 2013-03-07 15:54:23 +0100 | [diff] [blame] | 197 | LOG(WARNING) << "Message ignored: " << message; |
Darin Petkov | 92e6561 | 2012-06-10 12:52:10 +0200 | [diff] [blame] | 198 | } |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 199 | } |
| 200 | |
| 201 | bool OpenVPNManagementServer::ProcessInfoMessage(const string &message) { |
Darin Petkov | 92e6561 | 2012-06-10 12:52:10 +0200 | [diff] [blame] | 202 | if (!StartsWithASCII(message, ">INFO:", true)) { |
| 203 | return false; |
| 204 | } |
Darin Petkov | a42afe3 | 2013-02-05 16:53:52 +0100 | [diff] [blame] | 205 | LOG(INFO) << message; |
Darin Petkov | 92e6561 | 2012-06-10 12:52:10 +0200 | [diff] [blame] | 206 | return true; |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 207 | } |
| 208 | |
| 209 | bool OpenVPNManagementServer::ProcessNeedPasswordMessage( |
| 210 | const string &message) { |
| 211 | if (!StartsWithASCII(message, ">PASSWORD:Need ", true)) { |
| 212 | return false; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 213 | } |
Darin Petkov | 92e6561 | 2012-06-10 12:52:10 +0200 | [diff] [blame] | 214 | LOG(INFO) << "Processing need-password message."; |
Darin Petkov | aba8932 | 2013-03-11 14:48:22 +0100 | [diff] [blame] | 215 | string tag = ParsePasswordTag(message); |
| 216 | if (tag == kPasswordTagAuth) { |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 217 | if (message.find("SC:") != string::npos) { |
Darin Petkov | e0d5dd1 | 2012-04-04 16:10:48 +0200 | [diff] [blame] | 218 | PerformStaticChallenge(tag); |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 219 | } else { |
Darin Petkov | daaa553 | 2012-07-24 15:37:55 +0200 | [diff] [blame] | 220 | PerformAuthentication(tag); |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 221 | } |
Darin Petkov | e0d5dd1 | 2012-04-04 16:10:48 +0200 | [diff] [blame] | 222 | } else if (StartsWithASCII(tag, "User-Specific TPM Token", true)) { |
| 223 | SupplyTPMToken(tag); |
Darin Petkov | 92e6561 | 2012-06-10 12:52:10 +0200 | [diff] [blame] | 224 | } else { |
| 225 | NOTIMPLEMENTED() << ": Unsupported need-password message: " << message; |
Darin Petkov | 1c049c7 | 2013-03-21 13:15:45 +0100 | [diff] [blame] | 226 | driver_->FailService(Service::kFailureInternal, Service::kErrorDetailsNone); |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 227 | } |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 228 | return true; |
| 229 | } |
| 230 | |
Darin Petkov | e0d5dd1 | 2012-04-04 16:10:48 +0200 | [diff] [blame] | 231 | // static |
Darin Petkov | aba8932 | 2013-03-11 14:48:22 +0100 | [diff] [blame] | 232 | string OpenVPNManagementServer::ParseSubstring(const string &message, |
| 233 | const string &start, |
| 234 | const string &end) { |
| 235 | SLOG(VPN, 2) << __func__ << "(" << message |
| 236 | << ", " << start << ", " << end << ")"; |
| 237 | DCHECK(!start.empty() && !end.empty()); |
| 238 | size_t start_pos = message.find(start); |
| 239 | if (start_pos == string::npos) { |
Darin Petkov | e0d5dd1 | 2012-04-04 16:10:48 +0200 | [diff] [blame] | 240 | return string(); |
| 241 | } |
Darin Petkov | aba8932 | 2013-03-11 14:48:22 +0100 | [diff] [blame] | 242 | size_t end_pos = message.find(end, start_pos + start.size()); |
| 243 | if (end_pos == string::npos) { |
Darin Petkov | e0d5dd1 | 2012-04-04 16:10:48 +0200 | [diff] [blame] | 244 | return string(); |
| 245 | } |
Darin Petkov | aba8932 | 2013-03-11 14:48:22 +0100 | [diff] [blame] | 246 | return message.substr(start_pos + start.size(), |
| 247 | end_pos - start_pos - start.size()); |
| 248 | } |
| 249 | |
| 250 | // static |
| 251 | string OpenVPNManagementServer::ParsePasswordTag(const string &message) { |
| 252 | return ParseSubstring(message, "'", "'"); |
| 253 | } |
| 254 | |
| 255 | // static |
| 256 | string OpenVPNManagementServer::ParsePasswordFailedReason( |
| 257 | const string &message) { |
| 258 | return ParseSubstring(message, "['", "']"); |
Darin Petkov | e0d5dd1 | 2012-04-04 16:10:48 +0200 | [diff] [blame] | 259 | } |
| 260 | |
| 261 | void OpenVPNManagementServer::PerformStaticChallenge(const string &tag) { |
Darin Petkov | 92e6561 | 2012-06-10 12:52:10 +0200 | [diff] [blame] | 262 | LOG(INFO) << "Perform static challenge: " << tag; |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 263 | string user = |
| 264 | driver_->args()->LookupString(flimflam::kOpenVPNUserProperty, ""); |
| 265 | string password = |
| 266 | driver_->args()->LookupString(flimflam::kOpenVPNPasswordProperty, ""); |
| 267 | string otp = |
| 268 | driver_->args()->LookupString(flimflam::kOpenVPNOTPProperty, ""); |
| 269 | if (user.empty() || password.empty() || otp.empty()) { |
Darin Petkov | e08084d | 2012-06-11 13:19:35 +0200 | [diff] [blame] | 270 | NOTIMPLEMENTED() << ": Missing credentials:" |
| 271 | << (user.empty() ? " no-user" : "") |
| 272 | << (password.empty() ? " no-password" : "") |
| 273 | << (otp.empty() ? " no-otp" : ""); |
Darin Petkov | 1c049c7 | 2013-03-21 13:15:45 +0100 | [diff] [blame] | 274 | driver_->FailService(Service::kFailureInternal, Service::kErrorDetailsNone); |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 275 | return; |
| 276 | } |
Christopher Wiley | 0f3eab3 | 2013-03-21 11:55:41 -0700 | [diff] [blame] | 277 | string b64_password; |
| 278 | string b64_otp; |
| 279 | if (!glib_->B64Encode(password, &b64_password) || |
| 280 | !glib_->B64Encode(otp, &b64_otp)) { |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 281 | LOG(ERROR) << "Unable to base64-encode credentials."; |
| 282 | return; |
| 283 | } |
Darin Petkov | e0d5dd1 | 2012-04-04 16:10:48 +0200 | [diff] [blame] | 284 | SendUsername(tag, user); |
Christopher Wiley | 0f3eab3 | 2013-03-21 11:55:41 -0700 | [diff] [blame] | 285 | SendPassword(tag, StringPrintf("SCRV1:%s:%s", |
| 286 | b64_password.c_str(), |
| 287 | b64_otp.c_str())); |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 288 | // Don't reuse OTP. |
| 289 | driver_->args()->RemoveString(flimflam::kOpenVPNOTPProperty); |
| 290 | } |
| 291 | |
Darin Petkov | daaa553 | 2012-07-24 15:37:55 +0200 | [diff] [blame] | 292 | void OpenVPNManagementServer::PerformAuthentication(const string &tag) { |
| 293 | LOG(INFO) << "Perform authentication: " << tag; |
| 294 | string user = |
| 295 | driver_->args()->LookupString(flimflam::kOpenVPNUserProperty, ""); |
| 296 | string password = |
| 297 | driver_->args()->LookupString(flimflam::kOpenVPNPasswordProperty, ""); |
| 298 | if (user.empty() || password.empty()) { |
| 299 | NOTIMPLEMENTED() << ": Missing credentials:" |
| 300 | << (user.empty() ? " no-user" : "") |
| 301 | << (password.empty() ? " no-password" : ""); |
Darin Petkov | 1c049c7 | 2013-03-21 13:15:45 +0100 | [diff] [blame] | 302 | driver_->FailService(Service::kFailureInternal, Service::kErrorDetailsNone); |
Darin Petkov | daaa553 | 2012-07-24 15:37:55 +0200 | [diff] [blame] | 303 | return; |
| 304 | } |
| 305 | SendUsername(tag, user); |
| 306 | SendPassword(tag, password); |
| 307 | } |
| 308 | |
Darin Petkov | e0d5dd1 | 2012-04-04 16:10:48 +0200 | [diff] [blame] | 309 | void OpenVPNManagementServer::SupplyTPMToken(const string &tag) { |
Darin Petkov | 92e6561 | 2012-06-10 12:52:10 +0200 | [diff] [blame] | 310 | SLOG(VPN, 2) << __func__ << "(" << tag << ")"; |
Darin Petkov | e0d5dd1 | 2012-04-04 16:10:48 +0200 | [diff] [blame] | 311 | string pin = driver_->args()->LookupString(flimflam::kOpenVPNPinProperty, ""); |
| 312 | if (pin.empty()) { |
Darin Petkov | 0440b9b | 2012-04-17 16:11:56 +0200 | [diff] [blame] | 313 | NOTIMPLEMENTED() << ": Missing PIN."; |
Darin Petkov | 1c049c7 | 2013-03-21 13:15:45 +0100 | [diff] [blame] | 314 | driver_->FailService(Service::kFailureInternal, Service::kErrorDetailsNone); |
Darin Petkov | e0d5dd1 | 2012-04-04 16:10:48 +0200 | [diff] [blame] | 315 | return; |
| 316 | } |
| 317 | SendPassword(tag, pin); |
| 318 | } |
| 319 | |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 320 | bool OpenVPNManagementServer::ProcessFailedPasswordMessage( |
| 321 | const string &message) { |
| 322 | if (!StartsWithASCII(message, ">PASSWORD:Verification Failed:", true)) { |
| 323 | return false; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 324 | } |
Darin Petkov | aba8932 | 2013-03-11 14:48:22 +0100 | [diff] [blame] | 325 | LOG(INFO) << message; |
| 326 | string reason; |
| 327 | if (ParsePasswordTag(message) == kPasswordTagAuth) { |
| 328 | reason = ParsePasswordFailedReason(message); |
| 329 | } |
Darin Petkov | 1c049c7 | 2013-03-21 13:15:45 +0100 | [diff] [blame] | 330 | driver_->FailService(Service::kFailureConnect, reason); |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 331 | return true; |
| 332 | } |
| 333 | |
Darin Petkov | 16e7032 | 2013-03-07 15:54:23 +0100 | [diff] [blame] | 334 | bool OpenVPNManagementServer::ProcessAuthTokenMessage(const string &message) { |
| 335 | if (!StartsWithASCII(message, ">PASSWORD:Auth-Token:", true)) { |
| 336 | return false; |
| 337 | } |
| 338 | LOG(INFO) << "Auth-Token message ignored."; |
| 339 | return true; |
| 340 | } |
| 341 | |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 342 | // >STATE:* message support. State messages are of the form: |
| 343 | // >STATE:<date>,<state>,<detail>,<local-ip>,<remote-ip> |
| 344 | // where: |
| 345 | // <date> is the current time (since epoch) in seconds |
| 346 | // <state> is one of: |
| 347 | // INITIAL, CONNECTING, WAIT, AUTH, GET_CONFIG, ASSIGN_IP, ADD_ROUTES, |
| 348 | // CONNECTED, RECONNECTING, EXITING, RESOLVE, TCP_CONNECT |
| 349 | // <detail> is a free-form string giving details about the state change |
| 350 | // <local-ip> is a dotted-quad for the local IPv4 address (when available) |
| 351 | // <remote-ip> is a dotted-quad for the remote IPv4 address (when available) |
| 352 | bool OpenVPNManagementServer::ProcessStateMessage(const string &message) { |
| 353 | if (!StartsWithASCII(message, ">STATE:", true)) { |
| 354 | return false; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 355 | } |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 356 | vector<string> details; |
| 357 | SplitString(message, ',', &details); |
| 358 | if (details.size() > 1) { |
Darin Petkov | 1c049c7 | 2013-03-21 13:15:45 +0100 | [diff] [blame] | 359 | state_ = details[1]; |
| 360 | LOG(INFO) << "OpenVPN state: " << state_; |
| 361 | if (state_ == kStateReconnecting) { |
Darin Petkov | 0cd0d1e | 2013-02-11 12:49:10 +0100 | [diff] [blame] | 362 | OpenVPNDriver::ReconnectReason reason = |
| 363 | OpenVPNDriver::kReconnectReasonUnknown; |
| 364 | if (details.size() > 2 && details[2] == "tls-error") { |
| 365 | reason = OpenVPNDriver::kReconnectReasonTLSError; |
| 366 | } |
| 367 | driver_->OnReconnecting(reason); |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 368 | } |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 369 | } |
Darin Petkov | 1c049c7 | 2013-03-21 13:15:45 +0100 | [diff] [blame] | 370 | |
Darin Petkov | 271fe52 | 2012-03-27 13:47:29 +0200 | [diff] [blame] | 371 | return true; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 372 | } |
| 373 | |
Darin Petkov | a5e07ef | 2012-07-09 14:27:57 +0200 | [diff] [blame] | 374 | bool OpenVPNManagementServer::ProcessHoldMessage(const string &message) { |
| 375 | if (!StartsWithASCII(message, ">HOLD:Waiting for hold release", true)) { |
| 376 | return false; |
| 377 | } |
Darin Petkov | a42afe3 | 2013-02-05 16:53:52 +0100 | [diff] [blame] | 378 | LOG(INFO) << "Client waiting for hold release."; |
Darin Petkov | a5e07ef | 2012-07-09 14:27:57 +0200 | [diff] [blame] | 379 | hold_waiting_ = true; |
| 380 | if (hold_release_) { |
| 381 | ReleaseHold(); |
| 382 | } |
| 383 | return true; |
| 384 | } |
| 385 | |
Darin Petkov | a42afe3 | 2013-02-05 16:53:52 +0100 | [diff] [blame] | 386 | bool OpenVPNManagementServer::ProcessSuccessMessage(const string &message) { |
| 387 | if (!StartsWithASCII(message, "SUCCESS: ", true)) { |
| 388 | return false; |
| 389 | } |
| 390 | LOG(INFO) << message; |
| 391 | return true; |
| 392 | } |
| 393 | |
Darin Petkov | daaa553 | 2012-07-24 15:37:55 +0200 | [diff] [blame] | 394 | // static |
| 395 | string OpenVPNManagementServer::EscapeToQuote(const string &str) { |
| 396 | string escaped; |
| 397 | for (string::const_iterator it = str.begin(); it != str.end(); ++it) { |
| 398 | if (*it == '\\' || *it == '"') { |
| 399 | escaped += '\\'; |
| 400 | } |
| 401 | escaped += *it; |
| 402 | } |
| 403 | return escaped; |
| 404 | } |
| 405 | |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 406 | void OpenVPNManagementServer::Send(const string &data) { |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 407 | SLOG(VPN, 2) << __func__; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 408 | ssize_t len = sockets_->Send(connected_socket_, data.data(), data.size(), 0); |
| 409 | PLOG_IF(ERROR, len < 0 || static_cast<size_t>(len) != data.size()) |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 410 | << "Send failed."; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 411 | } |
| 412 | |
| 413 | void OpenVPNManagementServer::SendState(const string &state) { |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 414 | SLOG(VPN, 2) << __func__ << "(" << state << ")"; |
Darin Petkov | 78f6326 | 2012-03-26 01:30:24 +0200 | [diff] [blame] | 415 | Send(StringPrintf("state %s\n", state.c_str())); |
Darin Petkov | 1c11520 | 2012-03-22 15:35:47 +0100 | [diff] [blame] | 416 | } |
| 417 | |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 418 | void OpenVPNManagementServer::SendUsername(const string &tag, |
| 419 | const string &username) { |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 420 | SLOG(VPN, 2) << __func__; |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 421 | Send(StringPrintf("username \"%s\" %s\n", tag.c_str(), username.c_str())); |
| 422 | } |
| 423 | |
| 424 | void OpenVPNManagementServer::SendPassword(const string &tag, |
| 425 | const string &password) { |
Ben Chan | fad4a0b | 2012-04-18 15:49:59 -0700 | [diff] [blame] | 426 | SLOG(VPN, 2) << __func__; |
Darin Petkov | daaa553 | 2012-07-24 15:37:55 +0200 | [diff] [blame] | 427 | Send(StringPrintf("password \"%s\" \"%s\"\n", |
| 428 | tag.c_str(), |
| 429 | EscapeToQuote(password).c_str())); |
Darin Petkov | 683942b | 2012-03-27 18:00:04 +0200 | [diff] [blame] | 430 | } |
| 431 | |
Darin Petkov | a42afe3 | 2013-02-05 16:53:52 +0100 | [diff] [blame] | 432 | void OpenVPNManagementServer::SendSignal(const string &signal) { |
| 433 | SLOG(VPN, 2) << __func__ << "(" << signal << ")"; |
| 434 | Send(StringPrintf("signal %s\n", signal.c_str())); |
| 435 | } |
| 436 | |
Darin Petkov | a5e07ef | 2012-07-09 14:27:57 +0200 | [diff] [blame] | 437 | void OpenVPNManagementServer::SendHoldRelease() { |
| 438 | SLOG(VPN, 2) << __func__; |
| 439 | Send("hold release\n"); |
| 440 | } |
| 441 | |
Darin Petkov | 1c11520 | 2012-03-22 15:35:47 +0100 | [diff] [blame] | 442 | } // namespace shill |