5 * Copyright (C) 2010 BMW Car IT GmbH. All rights reserved.
6 * Copyright (C) 2012 Intel Corporation. All rights reserved.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
33 #include <dbus/dbus.h>
36 #define CONNMAN_API_SUBJECT_TO_CHANGE
37 #include <connman/plugin.h>
38 #include <connman/provider.h>
39 #include <connman/log.h>
40 #include <connman/task.h>
41 #include <connman/dbus.h>
42 #include <connman/inet.h>
43 #include <connman/agent.h>
44 #include <connman/setting.h>
45 #include <connman/vpn-dbus.h>
47 #include "../vpn-provider.h"
48 #include "../vpn-agent.h"
52 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
62 const char *vpnc_default;
65 { "PPTP.User", "user", NULL, OPT_STRING },
66 { "PPPD.EchoFailure", "lcp-echo-failure", "0", OPT_STRING },
67 { "PPPD.EchoInterval", "lcp-echo-interval", "0", OPT_STRING },
68 { "PPPD.Debug", "debug", NULL, OPT_STRING },
69 { "PPPD.RefuseEAP", "refuse-eap", NULL, OPT_BOOL },
70 { "PPPD.RefusePAP", "refuse-pap", NULL, OPT_BOOL },
71 { "PPPD.RefuseCHAP", "refuse-chap", NULL, OPT_BOOL },
72 { "PPPD.RefuseMSCHAP", "refuse-mschap", NULL, OPT_BOOL },
73 { "PPPD.RefuseMSCHAP2", "refuse-mschapv2", NULL, OPT_BOOL },
74 { "PPPD.NoBSDComp", "nobsdcomp", NULL, OPT_BOOL },
75 { "PPPD.NoDeflate", "nodeflate", NULL, OPT_BOOL },
76 { "PPPD.RequirMPPE", "require-mppe", NULL, OPT_BOOL },
77 { "PPPD.RequirMPPE40", "require-mppe-40", NULL, OPT_BOOL },
78 { "PPPD.RequirMPPE128", "require-mppe-128", NULL, OPT_BOOL },
79 { "PPPD.RequirMPPEStateful", "mppe-stateful", NULL, OPT_BOOL },
80 { "PPPD.NoVJ", "no-vj-comp", NULL, OPT_BOOL },
83 static DBusConnection *connection;
85 struct pptp_private_data {
86 struct connman_task *task;
88 vpn_provider_connect_cb_t cb;
92 static DBusMessage *pptp_get_sec(struct connman_task *task,
93 DBusMessage *msg, void *user_data)
95 const char *user, *passwd;
96 struct vpn_provider *provider = user_data;
99 if (dbus_message_get_no_reply(msg) == TRUE)
102 user = vpn_provider_get_string(provider, "PPTP.User");
103 passwd = vpn_provider_get_string(provider, "PPTP.Password");
104 if (user == NULL || strlen(user) == 0 ||
105 passwd == NULL || strlen(passwd) == 0)
108 reply = dbus_message_new_method_return(msg);
112 dbus_message_append_args(reply, DBUS_TYPE_STRING, &user,
113 DBUS_TYPE_STRING, &passwd,
118 static int pptp_notify(DBusMessage *msg, struct vpn_provider *provider)
120 DBusMessageIter iter, dict;
121 const char *reason, *key, *value;
122 char *addressv4 = NULL, *netmask = NULL, *gateway = NULL;
123 char *ifname = NULL, *nameservers = NULL;
124 struct connman_ipaddress *ipaddress = NULL;
126 dbus_message_iter_init(msg, &iter);
128 dbus_message_iter_get_basic(&iter, &reason);
129 dbus_message_iter_next(&iter);
131 if (provider == NULL) {
132 connman_error("No provider found");
133 return VPN_STATE_FAILURE;
136 if (strcmp(reason, "auth failed") == 0)
137 return VPN_STATE_AUTH_FAILURE;
139 if (strcmp(reason, "connect"))
140 return VPN_STATE_DISCONNECT;
142 dbus_message_iter_recurse(&iter, &dict);
144 while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
145 DBusMessageIter entry;
147 dbus_message_iter_recurse(&dict, &entry);
148 dbus_message_iter_get_basic(&entry, &key);
149 dbus_message_iter_next(&entry);
150 dbus_message_iter_get_basic(&entry, &value);
152 DBG("%s = %s", key, value);
154 if (!strcmp(key, "INTERNAL_IP4_ADDRESS")) {
155 vpn_provider_set_string(provider, "Address", value);
156 addressv4 = g_strdup(value);
159 if (!strcmp(key, "INTERNAL_IP4_NETMASK")) {
160 vpn_provider_set_string(provider, "Netmask", value);
161 netmask = g_strdup(value);
164 if (!strcmp(key, "INTERNAL_IP4_DNS")) {
165 vpn_provider_set_string(provider, "DNS", value);
166 nameservers = g_strdup(value);
169 if (!strcmp(key, "INTERNAL_IFNAME"))
170 ifname = g_strdup(value);
172 dbus_message_iter_next(&dict);
175 if (vpn_set_ifname(provider, ifname) < 0) {
180 return VPN_STATE_FAILURE;
183 if (addressv4 != NULL)
184 ipaddress = connman_ipaddress_alloc(AF_INET);
188 if (ipaddress == NULL) {
189 connman_error("No IP address for provider");
193 return VPN_STATE_FAILURE;
196 value = vpn_provider_get_string(provider, "HostIP");
198 vpn_provider_set_string(provider, "Gateway", value);
199 gateway = g_strdup(value);
202 if (addressv4 != NULL)
203 connman_ipaddress_set_ipv4(ipaddress, addressv4, netmask,
206 vpn_provider_set_ipaddress(provider, ipaddress);
207 vpn_provider_set_nameservers(provider, nameservers);
213 connman_ipaddress_free(ipaddress);
215 return VPN_STATE_CONNECT;
218 static int pptp_save(struct vpn_provider *provider, GKeyFile *keyfile)
221 connman_bool_t pptp_option, pppd_option;
224 for (i = 0; i < (int)ARRAY_SIZE(pptp_options); i++) {
225 pptp_option = pppd_option = FALSE;
227 if (strncmp(pptp_options[i].cm_opt, "PPTP.", 5) == 0)
230 if (strncmp(pptp_options[i].cm_opt, "PPPD.", 5) == 0)
233 if (pptp_option == TRUE || pppd_option == TRUE) {
234 option = vpn_provider_get_string(provider,
235 pptp_options[i].cm_opt);
236 if (option == NULL) {
238 * Check if the option prefix is PPTP as the
239 * PPPD options were using PPTP prefix earlier.
243 if (pppd_option == FALSE)
246 pptp_str = g_strdup_printf("PPTP.%s",
247 &pptp_options[i].cm_opt[5]);
248 option = vpn_provider_get_string(provider,
256 g_key_file_set_string(keyfile,
257 vpn_provider_get_save_group(provider),
258 pptp_options[i].cm_opt, option);
265 static void pptp_write_bool_option(struct connman_task *task,
266 const char *key, const char *value)
268 if (key != NULL && value != NULL) {
269 if (strcasecmp(value, "yes") == 0 ||
270 strcasecmp(value, "true") == 0 ||
271 strcmp(value, "1") == 0)
272 connman_task_add_argument(task, key, NULL);
276 struct request_input_reply {
277 struct vpn_provider *provider;
278 vpn_provider_password_cb_t callback;
282 static void request_input_reply(DBusMessage *reply, void *user_data)
284 struct request_input_reply *pptp_reply = user_data;
285 const char *error = NULL;
286 char *username = NULL, *password = NULL;
288 DBusMessageIter iter, dict;
290 DBG("provider %p", pptp_reply->provider);
292 if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
293 error = dbus_message_get_error_name(reply);
297 if (vpn_agent_check_reply_has_dict(reply) == FALSE)
300 dbus_message_iter_init(reply, &iter);
301 dbus_message_iter_recurse(&iter, &dict);
302 while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
303 DBusMessageIter entry, value;
306 dbus_message_iter_recurse(&dict, &entry);
307 if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
310 dbus_message_iter_get_basic(&entry, &key);
312 if (g_str_equal(key, "Username")) {
313 dbus_message_iter_next(&entry);
314 if (dbus_message_iter_get_arg_type(&entry)
315 != DBUS_TYPE_VARIANT)
317 dbus_message_iter_recurse(&entry, &value);
318 if (dbus_message_iter_get_arg_type(&value)
321 dbus_message_iter_get_basic(&value, &str);
322 username = g_strdup(str);
325 if (g_str_equal(key, "Password")) {
326 dbus_message_iter_next(&entry);
327 if (dbus_message_iter_get_arg_type(&entry)
328 != DBUS_TYPE_VARIANT)
330 dbus_message_iter_recurse(&entry, &value);
331 if (dbus_message_iter_get_arg_type(&value)
334 dbus_message_iter_get_basic(&value, &str);
335 password = g_strdup(str);
338 dbus_message_iter_next(&dict);
342 pptp_reply->callback(pptp_reply->provider, username, password, error,
343 pptp_reply->user_data);
351 typedef void (* request_cb_t)(struct vpn_provider *provider,
352 const char *username, const char *password,
353 const char *error, void *user_data);
355 static int request_input(struct vpn_provider *provider,
356 request_cb_t callback, void *user_data)
358 DBusMessage *message;
359 const char *path, *agent_sender, *agent_path;
360 DBusMessageIter iter;
361 DBusMessageIter dict;
362 struct request_input_reply *pptp_reply;
365 connman_agent_get_info(&agent_sender, &agent_path);
367 if (provider == NULL || agent_path == NULL || callback == NULL)
370 message = dbus_message_new_method_call(agent_sender, agent_path,
376 dbus_message_iter_init_append(message, &iter);
378 path = vpn_provider_get_path(provider);
379 dbus_message_iter_append_basic(&iter,
380 DBUS_TYPE_OBJECT_PATH, &path);
382 connman_dbus_dict_open(&iter, &dict);
384 vpn_agent_append_user_info(&dict, provider, "PPTP.User");
386 vpn_agent_append_host_and_name(&dict, provider);
388 connman_dbus_dict_close(&iter, &dict);
390 pptp_reply = g_try_new0(struct request_input_reply, 1);
391 if (pptp_reply == NULL) {
392 dbus_message_unref(message);
396 pptp_reply->provider = provider;
397 pptp_reply->callback = callback;
398 pptp_reply->user_data = user_data;
400 err = connman_agent_queue_message(provider, message,
401 connman_timeout_input_request(),
402 request_input_reply, pptp_reply);
403 if (err < 0 && err != -EBUSY) {
404 DBG("error %d sending agent request", err);
405 dbus_message_unref(message);
410 dbus_message_unref(message);
415 static int run_connect(struct vpn_provider *provider,
416 struct connman_task *task, const char *if_name,
417 vpn_provider_connect_cb_t cb, void *user_data,
418 const char *username, const char *password)
420 const char *opt_s, *host;
424 host = vpn_provider_get_string(provider, "Host");
426 connman_error("Host not set; cannot enable VPN");
431 if (username == NULL || password == NULL) {
432 DBG("Cannot connect username %s password %p",
438 vpn_provider_set_string(provider, "PPTP.User", username);
439 vpn_provider_set_string(provider, "PPTP.Password", password);
441 DBG("username %s password %p", username, password);
443 str = g_strdup_printf("%s %s --nolaunchpppd --loglevel 2",
446 connman_error("can not allocate memory");
451 connman_task_add_argument(task, "pty", str);
454 connman_task_add_argument(task, "nodetach", NULL);
455 connman_task_add_argument(task, "lock", NULL);
456 connman_task_add_argument(task, "usepeerdns", NULL);
457 connman_task_add_argument(task, "noipdefault", NULL);
458 connman_task_add_argument(task, "noauth", NULL);
459 connman_task_add_argument(task, "nodefaultroute", NULL);
460 connman_task_add_argument(task, "ipparam", "pptp_plugin");
462 for (i = 0; i < (int)ARRAY_SIZE(pptp_options); i++) {
463 opt_s = vpn_provider_get_string(provider,
464 pptp_options[i].cm_opt);
466 opt_s = pptp_options[i].vpnc_default;
471 if (pptp_options[i].type == OPT_STRING)
472 connman_task_add_argument(task,
473 pptp_options[i].pptp_opt, opt_s);
474 else if (pptp_options[i].type == OPT_BOOL)
475 pptp_write_bool_option(task,
476 pptp_options[i].pptp_opt, opt_s);
479 connman_task_add_argument(task, "plugin",
480 SCRIPTDIR "/libppp-plugin.so");
482 err = connman_task_run(task, vpn_died, provider,
485 connman_error("pptp failed to start");
492 cb(provider, user_data, err);
497 static void free_private_data(struct pptp_private_data *data)
499 g_free(data->if_name);
503 static void request_input_cb(struct vpn_provider *provider,
504 const char *username,
505 const char *password,
506 const char *error, void *user_data)
508 struct pptp_private_data *data = user_data;
510 if (username == NULL || password == NULL)
511 DBG("Requesting username %s or password failed, error %s",
513 else if (error != NULL)
514 DBG("error %s", error);
516 run_connect(provider, data->task, data->if_name, data->cb,
517 data->user_data, username, password);
519 free_private_data(data);
522 static int pptp_connect(struct vpn_provider *provider,
523 struct connman_task *task, const char *if_name,
524 vpn_provider_connect_cb_t cb, void *user_data)
526 const char *username, *password;
529 DBG("iface %s provider %p user %p", if_name, provider, user_data);
531 if (connman_task_set_notify(task, "getsec",
532 pptp_get_sec, provider)) {
537 username = vpn_provider_get_string(provider, "PPTP.User");
538 password = vpn_provider_get_string(provider, "PPTP.Password");
540 DBG("user %s password %p", username, password);
542 if (username == NULL || password == NULL) {
543 struct pptp_private_data *data;
545 data = g_try_new0(struct pptp_private_data, 1);
550 data->if_name = g_strdup(if_name);
552 data->user_data = user_data;
554 err = request_input(provider, request_input_cb, data);
555 if (err != -EINPROGRESS) {
556 free_private_data(data);
563 return run_connect(provider, task, if_name, cb, user_data,
568 cb(provider, user_data, err);
573 static int pptp_error_code(int exit_code)
578 return CONNMAN_PROVIDER_ERROR_CONNECT_FAILED;
580 return CONNMAN_PROVIDER_ERROR_LOGIN_FAILED;
582 return CONNMAN_PROVIDER_ERROR_AUTH_FAILED;
584 return CONNMAN_PROVIDER_ERROR_UNKNOWN;
588 static void pptp_disconnect(struct vpn_provider *provider)
590 vpn_provider_set_string(provider, "PPTP.Password", NULL);
593 static struct vpn_driver vpn_driver = {
594 .flags = VPN_FLAG_NO_TUN,
595 .notify = pptp_notify,
596 .connect = pptp_connect,
597 .error_code = pptp_error_code,
599 .disconnect = pptp_disconnect,
602 static int pptp_init(void)
604 connection = connman_dbus_get_connection();
606 return vpn_register("pptp", &vpn_driver, PPPD);
609 static void pptp_exit(void)
611 vpn_unregister("pptp");
613 dbus_connection_unref(connection);
616 CONNMAN_PLUGIN_DEFINE(pptp, "pptp plugin", VERSION,
617 CONNMAN_PLUGIN_PRIORITY_DEFAULT, pptp_init, pptp_exit)