5 * Copyright (C) 2012 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
28 #include <sys/socket.h>
34 #define CONNMAN_API_SUBJECT_TO_CHANGE
35 #include <connman/technology.h>
36 #include <connman/plugin.h>
37 #include <connman/log.h>
38 #include <connman/dbus.h>
39 #include <connman/provider.h>
40 #include <connman/ipaddress.h>
41 #include <connman/vpn-dbus.h>
42 #include <connman/inet.h>
43 #include <gweb/gresolv.h>
45 #define DBUS_TIMEOUT 10000
47 static DBusConnection *connection;
49 static GHashTable *vpn_connections = NULL;
51 static guint added_watch;
52 static guint removed_watch;
53 static guint property_watch;
62 struct config_create_data {
63 connection_ready_cb callback;
68 struct connection_data {
71 struct connman_provider *provider;
73 DBusPendingCall *call;
74 connman_bool_t connect_pending;
75 struct config_create_data *cb_data;
86 GHashTable *server_routes;
87 GHashTable *user_routes;
88 GHashTable *setting_strings;
90 struct connman_ipaddress *ip;
96 static int set_string(struct connman_provider *provider,
97 const char *key, const char *value)
99 struct connection_data *data;
101 data = connman_provider_get_data(provider);
105 DBG("data %p provider %p key %s value %s", data, provider, key, value);
107 if (g_str_equal(key, "Type") == TRUE) {
109 data->type = g_strdup(value);
110 } else if (g_str_equal(key, "Name") == TRUE) {
112 data->name = g_strdup(value);
113 } else if (g_str_equal(key, "Host") == TRUE) {
115 data->host = g_strdup(value);
116 } else if (g_str_equal(key, "VPN.Domain") == TRUE ||
117 g_str_equal(key, "Domain") == TRUE) {
118 g_free(data->domain);
119 data->domain = g_strdup(value);
121 g_hash_table_replace(data->setting_strings,
122 g_strdup(key), g_strdup(value));
126 static const char *get_string(struct connman_provider *provider,
129 struct connection_data *data;
131 data = connman_provider_get_data(provider);
135 DBG("data %p provider %p key %s", data, provider, key);
137 if (g_str_equal(key, "Type") == TRUE)
139 else if (g_str_equal(key, "Name") == TRUE)
141 else if (g_str_equal(key, "Host") == TRUE)
143 else if (g_str_equal(key, "HostIP") == TRUE) {
144 if (data->host_ip == NULL ||
145 data->host_ip[0] == NULL)
148 return data->host_ip[0];
149 } else if (g_str_equal(key, "VPN.Domain") == TRUE)
152 return g_hash_table_lookup(data->setting_strings, key);
155 static char *get_ident(const char *path)
162 pos = strrchr(path, '/');
169 static void cancel_host_resolv(struct connection_data *data)
171 if (data->resolv_id != 0)
172 g_resolv_cancel_lookup(data->resolv, data->resolv_id);
176 g_resolv_unref(data->resolv);
180 static gboolean remove_resolv(gpointer user_data)
182 struct connection_data *data = user_data;
184 cancel_host_resolv(data);
189 static void resolv_result(GResolvResultStatus status,
190 char **results, gpointer user_data)
192 struct connection_data *data = user_data;
194 DBG("status %d", status);
196 if (status == G_RESOLV_RESULT_STATUS_SUCCESS && results != NULL &&
197 g_strv_length(results) > 0)
198 data->host_ip = g_strdupv(results);
201 * We cannot unref the resolver here as resolv struct is manipulated
202 * by gresolv.c after we return from this callback.
204 g_timeout_add_seconds(0, remove_resolv, data);
209 static void resolv_host_addr(struct connection_data *data)
211 if (data->host == NULL)
214 if (connman_inet_check_ipaddress(data->host) > 0)
217 if (data->host_ip != NULL)
220 data->resolv = g_resolv_new(0);
221 if (data->resolv == NULL) {
222 DBG("Cannot resolv %s", data->host);
226 DBG("Trying to resolv %s", data->host);
228 data->resolv_id = g_resolv_lookup_hostname(data->resolv, data->host,
229 resolv_result, data);
232 static void free_config_cb_data(struct config_create_data *cb_data)
237 g_free(cb_data->path);
238 cb_data->path = NULL;
240 if (cb_data->message != NULL) {
241 dbus_message_unref(cb_data->message);
242 cb_data->message = NULL;
245 cb_data->callback = NULL;
250 static void set_provider_state(struct connection_data *data)
252 enum connman_provider_state state = CONNMAN_PROVIDER_STATE_UNKNOWN;
255 DBG("provider %p new state %s", data->provider, data->state);
257 if (g_str_equal(data->state, "ready") == TRUE) {
258 state = CONNMAN_PROVIDER_STATE_READY;
260 } else if (g_str_equal(data->state, "configuration") == TRUE) {
261 state = CONNMAN_PROVIDER_STATE_CONNECT;
262 } else if (g_str_equal(data->state, "idle") == TRUE) {
263 state = CONNMAN_PROVIDER_STATE_IDLE;
264 } else if (g_str_equal(data->state, "disconnect") == TRUE) {
266 state = CONNMAN_PROVIDER_STATE_DISCONNECT;
268 } else if (g_str_equal(data->state, "failure") == TRUE) {
270 state = CONNMAN_PROVIDER_STATE_FAILURE;
274 connman_provider_set_state(data->provider, state);
278 if (data->cb_data != NULL)
279 data->cb_data->callback(data->cb_data->message,
282 connman_provider_set_state(data->provider, state);
284 free_config_cb_data(data->cb_data);
285 data->cb_data = NULL;
288 static int create_provider(struct connection_data *data, void *user_data)
290 struct connman_provider_driver *driver = user_data;
293 DBG("%s", data->path);
295 data->provider = connman_provider_get(data->ident);
296 if (data->provider == NULL)
299 DBG("provider %p name %s", data->provider, data->name);
301 connman_provider_set_data(data->provider, data);
302 connman_provider_set_driver(data->provider, driver);
304 err = connman_provider_create_service(data->provider);
306 connman_provider_set_immutable(data->provider, data->immutable);
307 if (g_str_equal(data->state, "ready") == TRUE) {
308 connman_provider_set_index(data->provider,
310 if (data->ip != NULL)
311 connman_provider_set_ipaddress(data->provider,
315 set_provider_state(data);
321 static void destroy_route(gpointer user_data)
323 struct vpn_route *route = user_data;
325 g_free(route->network);
326 g_free(route->netmask);
327 g_free(route->gateway);
331 static struct connection_data *create_connection_data(const char *path)
333 struct connection_data *data;
335 data = g_try_new0(struct connection_data, 1);
339 DBG("path %s", path);
341 data->path = g_strdup(path);
342 data->ident = g_strdup(get_ident(path));
345 data->setting_strings = g_hash_table_new_full(g_str_hash,
346 g_str_equal, g_free, g_free);
348 data->server_routes = g_hash_table_new_full(g_direct_hash,
349 g_str_equal, g_free, destroy_route);
350 data->user_routes = g_hash_table_new_full(g_str_hash,
351 g_str_equal, g_free, destroy_route);
356 static int extract_ip(DBusMessageIter *array, int family,
357 struct connection_data *data)
359 DBusMessageIter dict;
360 char *address = NULL, *gateway = NULL, *netmask = NULL, *peer = NULL;
361 unsigned char prefix_len;
363 if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY)
366 dbus_message_iter_recurse(array, &dict);
368 while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
369 DBusMessageIter entry, value;
372 dbus_message_iter_recurse(&dict, &entry);
373 dbus_message_iter_get_basic(&entry, &key);
375 dbus_message_iter_next(&entry);
376 dbus_message_iter_recurse(&entry, &value);
378 if (g_str_equal(key, "Address") == TRUE) {
379 dbus_message_iter_get_basic(&value, &address);
380 DBG("address %s", address);
381 } else if (g_str_equal(key, "Netmask") == TRUE) {
382 dbus_message_iter_get_basic(&value, &netmask);
383 DBG("netmask %s", netmask);
384 } else if (g_str_equal(key, "PrefixLength") == TRUE) {
385 dbus_message_iter_get_basic(&value, &netmask);
386 DBG("prefix length %s", netmask);
387 } else if (g_str_equal(key, "Peer") == TRUE) {
388 dbus_message_iter_get_basic(&value, &peer);
389 DBG("peer %s", peer);
390 } else if (g_str_equal(key, "Gateway") == TRUE) {
391 dbus_message_iter_get_basic(&value, &gateway);
392 DBG("gateway %s", gateway);
395 dbus_message_iter_next(&dict);
398 data->ip = connman_ipaddress_alloc(family);
399 if (data->ip == NULL)
404 connman_ipaddress_set_ipv4(data->ip, address, netmask,
408 prefix_len = atoi(netmask);
409 connman_ipaddress_set_ipv6(data->ip, address, prefix_len,
416 connman_ipaddress_set_peer(data->ip, peer);
421 static int extract_nameservers(DBusMessageIter *array,
422 struct connection_data *data)
424 DBusMessageIter entry;
425 char **nameservers = NULL;
428 dbus_message_iter_recurse(array, &entry);
430 while (dbus_message_iter_get_arg_type(&entry) == DBUS_TYPE_STRING) {
431 const char *nameserver;
433 dbus_message_iter_get_basic(&entry, &nameserver);
435 nameservers = g_try_renew(char *, nameservers, i + 2);
436 if (nameservers == NULL)
439 DBG("[%d] %s", i, nameserver);
441 nameservers[i] = g_strdup(nameserver);
442 if (nameservers[i] == NULL)
445 nameservers[++i] = NULL;
447 dbus_message_iter_next(&entry);
450 g_strfreev(data->nameservers);
451 data->nameservers = nameservers;
456 static int errorstr2val(const char *error) {
457 if (g_strcmp0(error, CONNMAN_ERROR_INTERFACE ".InProgress") == 0)
460 if (g_strcmp0(error, CONNMAN_ERROR_INTERFACE ".AlreadyConnected") == 0)
463 return -ECONNREFUSED;
466 static void connect_reply(DBusPendingCall *call, void *user_data)
470 struct connection_data *data = user_data;
471 struct config_create_data *cb_data = data->cb_data;
473 if (dbus_pending_call_get_completed(call) == FALSE)
476 DBG("user_data %p path %s", user_data, cb_data ? cb_data->path : NULL);
478 reply = dbus_pending_call_steal_reply(call);
480 dbus_error_init(&error);
482 if (dbus_set_error_from_message(&error, reply) == TRUE) {
483 int err = errorstr2val(error.name);
484 if (err != -EINPROGRESS) {
485 connman_error("Connect reply: %s (%s)", error.message,
487 dbus_error_free(&error);
489 DBG("data %p cb_data %p", data, cb_data);
490 if (cb_data != NULL) {
491 cb_data->callback(cb_data->message, err, NULL);
492 free_config_cb_data(cb_data);
493 data->cb_data = NULL;
497 dbus_error_free(&error);
501 * The vpn connection is up when we get a "ready" state
502 * property so at this point we do nothing for the provider
507 dbus_message_unref(reply);
509 dbus_pending_call_unref(call);
512 static int connect_provider(struct connection_data *data, void *user_data)
514 DBusPendingCall *call;
515 DBusMessage *message;
516 struct config_create_data *cb_data = user_data;
518 DBG("data %p user %p path %s", data, cb_data, data->path);
520 data->connect_pending = FALSE;
522 message = dbus_message_new_method_call(VPN_SERVICE, data->path,
523 VPN_CONNECTION_INTERFACE,
528 if (dbus_connection_send_with_reply(connection, message,
529 &call, DBUS_TIMEOUT) == FALSE) {
530 connman_error("Unable to call %s.%s()",
531 VPN_CONNECTION_INTERFACE, VPN_CONNECT);
532 dbus_message_unref(message);
537 dbus_message_unref(message);
541 if (cb_data != NULL) {
542 g_free(cb_data->path);
543 cb_data->path = g_strdup(data->path);
546 dbus_pending_call_set_notify(call, connect_reply, data, NULL);
548 dbus_message_unref(message);
553 static void add_connection(const char *path, DBusMessageIter *properties,
556 struct connection_data *data;
558 char *ident = get_ident(path);
559 connman_bool_t found = FALSE;
561 data = g_hash_table_lookup(vpn_connections, ident);
564 * We might have a dummy connection struct here that
565 * was created by configuration_create_reply() so in
566 * that case just continue.
568 if (data->connect_pending == FALSE)
573 data = create_connection_data(path);
578 DBG("data %p path %s", data, path);
580 while (dbus_message_iter_get_arg_type(properties) ==
581 DBUS_TYPE_DICT_ENTRY) {
582 DBusMessageIter entry, value;
586 dbus_message_iter_recurse(properties, &entry);
587 dbus_message_iter_get_basic(&entry, &key);
589 dbus_message_iter_next(&entry);
590 dbus_message_iter_recurse(&entry, &value);
592 if (g_str_equal(key, "State") == TRUE) {
593 dbus_message_iter_get_basic(&value, &str);
594 DBG("state %s -> %s", data->state, str);
595 data->state = g_strdup(str);
596 } else if (g_str_equal(key, "IPv4") == TRUE) {
597 extract_ip(&value, AF_INET, data);
598 } else if (g_str_equal(key, "IPv6") == TRUE) {
599 extract_ip(&value, AF_INET6, data);
600 } else if (g_str_equal(key, "Name") == TRUE) {
601 dbus_message_iter_get_basic(&value, &str);
602 data->name = g_strdup(str);
603 } else if (g_str_equal(key, "Type") == TRUE) {
604 dbus_message_iter_get_basic(&value, &str);
605 data->type = g_strdup(str);
606 } else if (g_str_equal(key, "Immutable") == TRUE) {
607 dbus_message_iter_get_basic(&value, &data->immutable);
608 } else if (g_str_equal(key, "Host") == TRUE) {
609 dbus_message_iter_get_basic(&value, &str);
610 data->host = g_strdup(str);
611 } else if (g_str_equal(key, "Domain") == TRUE) {
612 dbus_message_iter_get_basic(&value, &str);
613 data->domain = g_strdup(str);
614 } else if (g_str_equal(key, "Nameservers") == TRUE) {
615 extract_nameservers(&value, data);
616 } else if (g_str_equal(key, "Index") == TRUE) {
617 dbus_message_iter_get_basic(&value, &data->index);
618 } else if (g_str_equal(key, "ServerRoutes") == TRUE) {
620 } else if (g_str_equal(key, "UserRoutes") == TRUE) {
623 if (dbus_message_iter_get_arg_type(&value) ==
625 dbus_message_iter_get_basic(&value, &str);
626 g_hash_table_replace(data->setting_strings,
627 g_strdup(key), g_strdup(str));
629 DBG("unknown key %s", key);
633 dbus_message_iter_next(properties);
637 g_hash_table_insert(vpn_connections, g_strdup(data->ident),
640 err = create_provider(data, user_data);
644 resolv_host_addr(data);
646 if (data->connect_pending == TRUE)
647 connect_provider(data, data->cb_data);
652 DBG("removing %s", data->ident);
653 g_hash_table_remove(vpn_connections, data->ident);
656 static void get_connections_reply(DBusPendingCall *call, void *user_data)
660 DBusMessageIter array, dict;
661 const char *signature = DBUS_TYPE_ARRAY_AS_STRING
662 DBUS_STRUCT_BEGIN_CHAR_AS_STRING
663 DBUS_TYPE_OBJECT_PATH_AS_STRING
664 DBUS_TYPE_ARRAY_AS_STRING
665 DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
666 DBUS_TYPE_STRING_AS_STRING
667 DBUS_TYPE_VARIANT_AS_STRING
668 DBUS_DICT_ENTRY_END_CHAR_AS_STRING
669 DBUS_STRUCT_END_CHAR_AS_STRING;
671 if (dbus_pending_call_get_completed(call) == FALSE)
676 reply = dbus_pending_call_steal_reply(call);
678 dbus_error_init(&error);
680 if (dbus_set_error_from_message(&error, reply) == TRUE) {
681 connman_error("%s", error.message);
682 dbus_error_free(&error);
686 if (dbus_message_has_signature(reply, signature) == FALSE) {
687 connman_error("vpnd signature \"%s\" does not match "
689 dbus_message_get_signature(reply), signature);
693 if (dbus_message_iter_init(reply, &array) == FALSE)
696 dbus_message_iter_recurse(&array, &dict);
698 while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_STRUCT) {
699 DBusMessageIter value, properties;
702 dbus_message_iter_recurse(&dict, &value);
703 dbus_message_iter_get_basic(&value, &path);
705 dbus_message_iter_next(&value);
706 dbus_message_iter_recurse(&value, &properties);
708 add_connection(path, &properties, user_data);
710 dbus_message_iter_next(&dict);
714 dbus_message_unref(reply);
716 dbus_pending_call_unref(call);
719 static int get_connections(void *user_data)
721 DBusPendingCall *call;
722 DBusMessage *message;
726 message = dbus_message_new_method_call(VPN_SERVICE, "/",
727 VPN_MANAGER_INTERFACE,
732 if (dbus_connection_send_with_reply(connection, message,
733 &call, DBUS_TIMEOUT) == FALSE) {
734 connman_error("Unable to call %s.%s()", VPN_MANAGER_INTERFACE,
736 dbus_message_unref(message);
741 dbus_message_unref(message);
745 dbus_pending_call_set_notify(call, get_connections_reply,
748 dbus_message_unref(message);
753 static int provider_probe(struct connman_provider *provider)
758 static void remove_connection_reply(DBusPendingCall *call, void *user_data)
763 if (dbus_pending_call_get_completed(call) == FALSE)
768 reply = dbus_pending_call_steal_reply(call);
770 dbus_error_init(&error);
772 if (dbus_set_error_from_message(&error, reply) == TRUE) {
774 * If the returned error is NotFound, it means that we
775 * have actually removed the provider in vpnd already.
777 if (dbus_error_has_name(&error, CONNMAN_ERROR_INTERFACE
778 ".NotFound") == FALSE)
779 connman_error("%s", error.message);
781 dbus_error_free(&error);
784 dbus_message_unref(reply);
786 dbus_pending_call_unref(call);
789 static int provider_remove(struct connman_provider *provider)
791 DBusPendingCall *call;
792 DBusMessage *message;
793 struct connection_data *data;
795 data = connman_provider_get_data(provider);
797 DBG("provider %p data %p", provider, data);
801 * This means the provider is already removed,
802 * just ignore the dbus in this case.
808 * When provider.c:provider_remove() calls this function,
809 * it will remove the provider itself after the call.
810 * This means that we cannot use the provider pointer later
811 * as it is no longer valid.
813 data->provider = NULL;
815 message = dbus_message_new_method_call(VPN_SERVICE, "/",
816 VPN_MANAGER_INTERFACE,
821 dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &data->path,
824 if (dbus_connection_send_with_reply(connection, message,
825 &call, DBUS_TIMEOUT) == FALSE) {
826 connman_error("Unable to call %s.%s()", VPN_MANAGER_INTERFACE,
828 dbus_message_unref(message);
833 dbus_message_unref(message);
837 dbus_pending_call_set_notify(call, remove_connection_reply,
840 dbus_message_unref(message);
845 static int provider_connect(struct connman_provider *provider)
847 struct connection_data *data;
849 data = connman_provider_get_data(provider);
853 return connect_provider(data, NULL);
856 static void disconnect_reply(DBusPendingCall *call, void *user_data)
861 if (dbus_pending_call_get_completed(call) == FALSE)
864 DBG("user %p", user_data);
866 reply = dbus_pending_call_steal_reply(call);
868 dbus_error_init(&error);
870 if (dbus_set_error_from_message(&error, reply) == TRUE) {
871 connman_error("%s", error.message);
872 dbus_error_free(&error);
877 dbus_message_unref(reply);
879 dbus_pending_call_unref(call);
882 static int disconnect_provider(struct connection_data *data)
884 DBusPendingCall *call;
885 DBusMessage *message;
887 DBG("data %p path %s", data, data->path);
889 message = dbus_message_new_method_call(VPN_SERVICE, data->path,
890 VPN_CONNECTION_INTERFACE,
895 if (dbus_connection_send_with_reply(connection, message,
896 &call, DBUS_TIMEOUT) == FALSE) {
897 connman_error("Unable to call %s.%s()",
898 VPN_CONNECTION_INTERFACE, VPN_DISCONNECT);
899 dbus_message_unref(message);
904 dbus_message_unref(message);
908 dbus_pending_call_set_notify(call, disconnect_reply, NULL, NULL);
910 dbus_message_unref(message);
912 connman_provider_set_state(data->provider,
913 CONNMAN_PROVIDER_STATE_DISCONNECT);
915 * We return 0 here instead of -EINPROGRESS because
916 * __connman_service_disconnect() needs to return something
917 * to gdbus so that gdbus will not call Disconnect() more
918 * than once. This way we do not need to pass the dbus reply
919 * message around the code.
924 static int provider_disconnect(struct connman_provider *provider)
926 struct connection_data *data;
928 DBG("provider %p", provider);
930 data = connman_provider_get_data(provider);
934 if (g_str_equal(data->state, "ready") == TRUE ||
935 g_str_equal(data->state, "configuration") == TRUE)
936 return disconnect_provider(data);
941 static void configuration_create_reply(DBusPendingCall *call, void *user_data)
945 DBusMessageIter iter;
946 const char *signature = DBUS_TYPE_OBJECT_PATH_AS_STRING;
949 struct connection_data *data;
950 struct config_create_data *cb_data = user_data;
952 if (dbus_pending_call_get_completed(call) == FALSE)
955 DBG("user %p", cb_data);
957 reply = dbus_pending_call_steal_reply(call);
959 dbus_error_init(&error);
961 if (dbus_set_error_from_message(&error, reply) == TRUE) {
962 connman_error("dbus error: %s", error.message);
963 dbus_error_free(&error);
967 if (dbus_message_has_signature(reply, signature) == FALSE) {
968 connman_error("vpn configuration signature \"%s\" does not "
969 "match expected \"%s\"",
970 dbus_message_get_signature(reply), signature);
974 if (dbus_message_iter_init(reply, &iter) == FALSE)
977 dbus_message_iter_get_basic(&iter, &path);
980 * Then try to connect the VPN as expected by ConnectProvider API
982 ident = get_ident(path);
984 data = g_hash_table_lookup(vpn_connections, ident);
987 * Someone removed the data. We cannot really continue.
989 DBG("Pending data not found for %s, cannot continue!", ident);
992 data->connect_pending = TRUE;
994 if (data->cb_data == NULL)
995 data->cb_data = cb_data;
997 DBG("Connection callback data already in use!");
1000 * Connection is created in add_connections() after
1001 * we have received the ConnectionAdded signal.
1004 DBG("cb %p msg %p", data->cb_data,
1005 data->cb_data ? data->cb_data->message : NULL);
1009 dbus_message_unref(reply);
1011 dbus_pending_call_unref(call);
1014 static void set_dbus_ident(char *ident)
1016 int i, len = strlen(ident);
1018 for (i = 0; i < len; i++) {
1019 if (ident[i] >= '0' && ident[i] <= '9')
1021 if (ident[i] >= 'a' && ident[i] <= 'z')
1023 if (ident[i] >= 'A' && ident[i] <= 'Z')
1029 static struct vpn_route *parse_user_route(const char *user_route)
1031 char *network, *netmask;
1032 struct vpn_route *route = NULL;
1033 int family = PF_UNSPEC;
1034 char **elems = g_strsplit(user_route, "/", 0);
1040 if (network == NULL || *network == '\0') {
1041 DBG("no network/netmask set");
1046 if (netmask != NULL && *netmask == '\0') {
1047 DBG("no netmask set");
1051 if (g_strrstr(network, ":") != NULL)
1053 else if (g_strrstr(network, ".") != NULL) {
1056 if (g_strrstr(netmask, ".") == NULL) {
1057 /* We have netmask length */
1059 struct in_addr netmask_in;
1060 unsigned char prefix_len = 32;
1062 if (netmask != NULL) {
1064 long int value = strtol(netmask, &ptr, 10);
1065 if (ptr != netmask && *ptr == '\0' &&
1070 addr = 0xffffffff << (32 - prefix_len);
1071 netmask_in.s_addr = htonl(addr);
1072 netmask = inet_ntoa(netmask_in);
1074 DBG("network %s netmask %s", network, netmask);
1078 route = g_try_new(struct vpn_route, 1);
1082 route->network = g_strdup(network);
1083 route->netmask = g_strdup(netmask);
1084 route->gateway = NULL;
1085 route->family = family;
1092 static GSList *get_user_networks(DBusMessageIter *array)
1094 DBusMessageIter entry;
1095 GSList *list = NULL;
1097 dbus_message_iter_recurse(array, &entry);
1099 while (dbus_message_iter_get_arg_type(&entry) == DBUS_TYPE_STRING) {
1101 struct vpn_route *route;
1103 dbus_message_iter_get_basic(&entry, &val);
1105 route = parse_user_route(val);
1107 list = g_slist_prepend(list, route);
1109 dbus_message_iter_next(&entry);
1115 static void append_route(DBusMessageIter *iter, void *user_data)
1117 struct vpn_route *route = user_data;
1118 DBusMessageIter item;
1121 connman_dbus_dict_open(iter, &item);
1126 if (route->family == AF_INET)
1128 else if (route->family == AF_INET6)
1132 connman_dbus_dict_append_basic(&item, "ProtocolFamily",
1133 DBUS_TYPE_INT32, &family);
1135 if (route->network != NULL)
1136 connman_dbus_dict_append_basic(&item, "Network",
1137 DBUS_TYPE_STRING, &route->network);
1139 if (route->netmask != NULL)
1140 connman_dbus_dict_append_basic(&item, "Netmask",
1141 DBUS_TYPE_STRING, &route->netmask);
1143 if (route->gateway != NULL)
1144 connman_dbus_dict_append_basic(&item, "Gateway",
1145 DBUS_TYPE_STRING, &route->gateway);
1148 connman_dbus_dict_close(iter, &item);
1151 static void append_routes(DBusMessageIter *iter, void *user_data)
1153 GSList *list, *routes = user_data;
1155 DBG("routes %p", routes);
1157 for (list = routes; list != NULL; list = g_slist_next(list)) {
1158 DBusMessageIter dict;
1159 struct vpn_route *route = list->data;
1161 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT, NULL,
1163 append_route(&dict, route);
1164 dbus_message_iter_close_container(iter, &dict);
1168 static int create_configuration(DBusMessage *msg, connection_ready_cb callback)
1170 DBusMessage *new_msg = NULL;
1171 DBusPendingCall *call;
1172 DBusMessageIter iter, array, new_iter, new_dict;
1173 const char *type = NULL, *name = NULL;
1174 const char *host = NULL, *domain = NULL;
1175 char *ident, *me = NULL;
1178 struct connection_data *data;
1179 struct config_create_data *user_data = NULL;
1180 GSList *networks = NULL;
1183 * We copy the old message data into new message. We cannot
1184 * just use the old message as is because the user route
1185 * information is not in the same format in vpnd.
1187 new_msg = dbus_message_new(DBUS_MESSAGE_TYPE_METHOD_CALL);
1188 dbus_message_iter_init_append(new_msg, &new_iter);
1189 connman_dbus_dict_open(&new_iter, &new_dict);
1191 dbus_message_iter_init(msg, &iter);
1192 dbus_message_iter_recurse(&iter, &array);
1194 while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1195 DBusMessageIter entry, value;
1200 dbus_message_iter_recurse(&array, &entry);
1201 dbus_message_iter_get_basic(&entry, &key);
1203 dbus_message_iter_next(&entry);
1204 dbus_message_iter_recurse(&entry, &value);
1206 value_type = dbus_message_iter_get_arg_type(&value);
1209 switch (value_type) {
1210 case DBUS_TYPE_STRING:
1211 dbus_message_iter_get_basic(&value, &item_value);
1213 if (g_str_equal(key, "Type") == TRUE) {
1214 type = (const char *)item_value;
1215 } else if (g_str_equal(key, "Name") == TRUE) {
1216 name = (const char *)item_value;
1217 } else if (g_str_equal(key, "Host") == TRUE) {
1218 host = (const char *)item_value;
1219 } else if (g_str_equal(key, "VPN.Domain") == TRUE) {
1220 domain = (const char *)item_value;
1223 DBG("%s %s", key, (char *)item_value);
1225 if (item_value != NULL)
1226 connman_dbus_dict_append_basic(&new_dict, key,
1227 value_type, &item_value);
1229 case DBUS_TYPE_ARRAY:
1230 if (g_str_equal(key, "Networks") == TRUE) {
1231 networks = get_user_networks(&value);
1232 connman_dbus_dict_append_array(&new_dict,
1234 DBUS_TYPE_DICT_ENTRY,
1241 dbus_message_iter_next(&array);
1244 connman_dbus_dict_close(&new_iter, &new_dict);
1246 DBG("VPN type %s name %s host %s domain %s networks %p",
1247 type, name, host, domain, networks);
1249 if (host == NULL || domain == NULL) {
1254 if (type == NULL || name == NULL) {
1259 ident = g_strdup_printf("%s_%s", host, domain);
1260 set_dbus_ident(ident);
1262 DBG("ident %s", ident);
1264 data = g_hash_table_lookup(vpn_connections, ident);
1266 if (data->call != NULL || data->cb_data != NULL) {
1267 DBG("create configuration call already pending");
1272 char *path = g_strdup_printf("%s/connection/%s", VPN_PATH,
1274 data = create_connection_data(path);
1282 g_hash_table_insert(vpn_connections, g_strdup(ident), data);
1286 * User called net.connman.Manager.ConnectProvider if we are here.
1287 * So use the data from original message in the new msg.
1289 me = g_strdup(dbus_message_get_destination(msg));
1291 dbus_message_set_interface(new_msg, VPN_MANAGER_INTERFACE);
1292 dbus_message_set_path(new_msg, "/");
1293 dbus_message_set_destination(new_msg, VPN_SERVICE);
1294 dbus_message_set_sender(new_msg, me);
1295 dbus_message_set_member(new_msg, "Create");
1297 user_data = g_try_new0(struct config_create_data, 1);
1298 if (user_data == NULL) {
1303 user_data->callback = callback;
1304 user_data->message = dbus_message_ref(msg);
1305 user_data->path = NULL;
1307 DBG("cb %p msg %p", user_data, msg);
1309 result = dbus_connection_send_with_reply(connection, new_msg,
1310 &call, DBUS_TIMEOUT);
1311 if (result == FALSE || call == NULL) {
1316 dbus_pending_call_set_notify(call, configuration_create_reply,
1321 if (new_msg != NULL)
1322 dbus_message_unref(new_msg);
1324 if (networks != NULL)
1325 g_slist_free_full(networks, destroy_route);
1331 static connman_bool_t check_host(char **hosts, char *host)
1338 for (i = 0; hosts[i] != NULL; i++) {
1339 if (g_strcmp0(hosts[i], host) == 0)
1346 static void set_route(struct connection_data *data, struct vpn_route *route)
1349 * If the VPN administrator/user has given a route to
1350 * VPN server, then we must discard that because the
1351 * server cannot be contacted via VPN tunnel.
1353 if (check_host(data->host_ip, route->network) == TRUE) {
1354 DBG("Discarding VPN route to %s via %s at index %d",
1355 route->network, route->gateway, data->index);
1359 if (route->family == AF_INET6) {
1360 unsigned char prefix_len = atoi(route->netmask);
1362 connman_inet_add_ipv6_network_route(data->index,
1367 connman_inet_add_network_route(data->index, route->network,
1373 static int set_routes(struct connman_provider *provider,
1374 enum connman_provider_route_type type)
1376 struct connection_data *data;
1377 GHashTableIter iter;
1378 gpointer value, key;
1380 DBG("provider %p", provider);
1382 data = connman_provider_get_data(provider);
1386 if (type == CONNMAN_PROVIDER_ROUTE_ALL ||
1387 type == CONNMAN_PROVIDER_ROUTE_USER) {
1388 g_hash_table_iter_init(&iter, data->user_routes);
1390 while (g_hash_table_iter_next(&iter, &key, &value) == TRUE)
1391 set_route(data, value);
1394 if (type == CONNMAN_PROVIDER_ROUTE_ALL ||
1395 type == CONNMAN_PROVIDER_ROUTE_SERVER) {
1396 g_hash_table_iter_init(&iter, data->server_routes);
1398 while (g_hash_table_iter_next(&iter, &key, &value) == TRUE)
1399 set_route(data, value);
1405 static connman_bool_t check_routes(struct connman_provider *provider)
1407 struct connection_data *data;
1409 DBG("provider %p", provider);
1411 data = connman_provider_get_data(provider);
1415 if (data->user_routes != NULL &&
1416 g_hash_table_size(data->user_routes) > 0)
1419 if (data->server_routes != NULL &&
1420 g_hash_table_size(data->server_routes) > 0)
1426 static struct connman_provider_driver provider_driver = {
1428 .type = CONNMAN_PROVIDER_TYPE_VPN,
1429 .probe = provider_probe,
1430 .remove = provider_remove,
1431 .connect = provider_connect,
1432 .disconnect = provider_disconnect,
1433 .set_property = set_string,
1434 .get_property = get_string,
1435 .create = create_configuration,
1436 .set_routes = set_routes,
1437 .check_routes = check_routes,
1440 static void destroy_provider(struct connection_data *data)
1442 DBG("data %p", data);
1444 if (g_str_equal(data->state, "ready") == TRUE ||
1445 g_str_equal(data->state, "configuration") == TRUE)
1446 connman_provider_disconnect(data->provider);
1448 if (data->call != NULL)
1449 dbus_pending_call_cancel(data->call);
1451 connman_provider_set_data(data->provider, NULL);
1453 connman_provider_remove(data->provider);
1455 data->provider = NULL;
1458 static void connection_destroy(gpointer hash_data)
1460 struct connection_data *data = hash_data;
1462 DBG("data %p", data);
1464 if (data->provider != NULL)
1465 destroy_provider(data);
1468 g_free(data->ident);
1469 g_free(data->state);
1473 g_free(data->domain);
1474 g_hash_table_destroy(data->server_routes);
1475 g_hash_table_destroy(data->user_routes);
1476 g_strfreev(data->nameservers);
1477 g_hash_table_destroy(data->setting_strings);
1478 connman_ipaddress_free(data->ip);
1480 cancel_host_resolv(data);
1485 static void vpnd_created(DBusConnection *conn, void *user_data)
1487 DBG("connection %p", conn);
1489 get_connections(user_data);
1492 static void vpnd_removed(DBusConnection *conn, void *user_data)
1494 DBG("connection %p", conn);
1496 g_hash_table_remove_all(vpn_connections);
1499 static void remove_connection(DBusConnection *conn, const char *path)
1501 DBG("path %s", path);
1503 g_hash_table_remove(vpn_connections, get_ident(path));
1506 static gboolean connection_removed(DBusConnection *conn, DBusMessage *message,
1510 const char *signature = DBUS_TYPE_OBJECT_PATH_AS_STRING;
1511 struct connection_data *data;
1513 if (dbus_message_has_signature(message, signature) == FALSE) {
1514 connman_error("vpn removed signature \"%s\" does not match "
1516 dbus_message_get_signature(message), signature);
1520 dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path,
1523 data = g_hash_table_lookup(vpn_connections, get_ident(path));
1525 remove_connection(conn, path);
1530 static gboolean connection_added(DBusConnection *conn, DBusMessage *message,
1533 DBusMessageIter iter, properties;
1535 const char *signature = DBUS_TYPE_OBJECT_PATH_AS_STRING
1536 DBUS_TYPE_ARRAY_AS_STRING
1537 DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
1538 DBUS_TYPE_STRING_AS_STRING
1539 DBUS_TYPE_VARIANT_AS_STRING
1540 DBUS_DICT_ENTRY_END_CHAR_AS_STRING;
1542 if (dbus_message_has_signature(message, signature) == FALSE) {
1543 connman_error("vpn ConnectionAdded signature \"%s\" does not "
1544 "match expected \"%s\"",
1545 dbus_message_get_signature(message), signature);
1551 if (dbus_message_iter_init(message, &iter) == FALSE)
1554 dbus_message_iter_get_basic(&iter, &path);
1556 dbus_message_iter_next(&iter);
1557 dbus_message_iter_recurse(&iter, &properties);
1559 add_connection(path, &properties, user_data);
1564 static int save_route(GHashTable *routes, int family, const char *network,
1565 const char *netmask, const char *gateway)
1567 struct vpn_route *route;
1568 char *key = g_strdup_printf("%d/%s/%s", family, network, netmask);
1570 DBG("family %d network %s netmask %s", family, network, netmask);
1572 route = g_hash_table_lookup(routes, key);
1573 if (route == NULL) {
1574 route = g_try_new0(struct vpn_route, 1);
1575 if (route == NULL) {
1576 connman_error("out of memory");
1580 route->family = family;
1581 route->network = g_strdup(network);
1582 route->netmask = g_strdup(netmask);
1583 route->gateway = g_strdup(gateway);
1585 g_hash_table_replace(routes, key, route);
1592 static int read_route_dict(GHashTable *routes, DBusMessageIter *dicts)
1594 DBusMessageIter dict;
1595 const char *network, *netmask, *gateway;
1598 dbus_message_iter_recurse(dicts, &dict);
1600 network = netmask = gateway = NULL;
1603 while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1605 DBusMessageIter entry, value;
1608 dbus_message_iter_recurse(&dict, &entry);
1609 dbus_message_iter_get_basic(&entry, &key);
1611 dbus_message_iter_next(&entry);
1612 dbus_message_iter_recurse(&entry, &value);
1614 if (g_str_equal(key, "ProtocolFamily") == TRUE) {
1616 dbus_message_iter_get_basic(&value, &pf);
1625 DBG("family %d", family);
1626 } else if (g_str_equal(key, "Netmask") == TRUE) {
1627 dbus_message_iter_get_basic(&value, &netmask);
1628 DBG("netmask %s", netmask);
1629 } else if (g_str_equal(key, "Network") == TRUE) {
1630 dbus_message_iter_get_basic(&value, &network);
1631 DBG("host %s", network);
1632 } else if (g_str_equal(key, "Gateway") == TRUE) {
1633 dbus_message_iter_get_basic(&value, &gateway);
1634 DBG("gateway %s", gateway);
1637 dbus_message_iter_next(&dict);
1640 if (netmask == NULL || network == NULL || gateway == NULL) {
1641 DBG("Value missing.");
1645 return save_route(routes, family, network, netmask, gateway);
1648 static int routes_changed(DBusMessageIter *array, GHashTable *routes)
1650 DBusMessageIter entry;
1653 if (dbus_message_iter_get_arg_type(array) != DBUS_TYPE_ARRAY) {
1654 DBG("Expecting array, ignoring routes.");
1658 while (dbus_message_iter_get_arg_type(array) == DBUS_TYPE_ARRAY) {
1660 dbus_message_iter_recurse(array, &entry);
1662 while (dbus_message_iter_get_arg_type(&entry) ==
1664 DBusMessageIter dicts;
1666 dbus_message_iter_recurse(&entry, &dicts);
1668 while (dbus_message_iter_get_arg_type(&dicts) ==
1670 int err = read_route_dict(routes, &dicts);
1673 dbus_message_iter_next(&dicts);
1676 dbus_message_iter_next(&entry);
1679 dbus_message_iter_next(array);
1685 static gboolean property_changed(DBusConnection *conn,
1686 DBusMessage *message,
1689 const char *path = dbus_message_get_path(message);
1690 struct connection_data *data = NULL;
1691 DBusMessageIter iter, value;
1692 connman_bool_t ip_set = FALSE;
1696 const char *signature = DBUS_TYPE_STRING_AS_STRING
1697 DBUS_TYPE_VARIANT_AS_STRING;
1699 if (dbus_message_has_signature(message, signature) == FALSE) {
1700 connman_error("vpn property signature \"%s\" does not match "
1702 dbus_message_get_signature(message), signature);
1706 data = g_hash_table_lookup(vpn_connections, get_ident(path));
1710 if (dbus_message_iter_init(message, &iter) == FALSE)
1713 dbus_message_iter_get_basic(&iter, &key);
1715 dbus_message_iter_next(&iter);
1716 dbus_message_iter_recurse(&iter, &value);
1720 if (g_str_equal(key, "State") == TRUE) {
1721 dbus_message_iter_get_basic(&value, &str);
1723 DBG("%s %s -> %s", data->path, data->state, str);
1725 if (g_str_equal(data->state, str) == TRUE)
1728 g_free(data->state);
1729 data->state = g_strdup(str);
1731 set_provider_state(data);
1732 } else if (g_str_equal(key, "Index") == TRUE) {
1733 dbus_message_iter_get_basic(&value, &data->index);
1734 connman_provider_set_index(data->provider, data->index);
1735 } else if (g_str_equal(key, "IPv4") == TRUE) {
1736 err = extract_ip(&value, AF_INET, data);
1738 } else if (g_str_equal(key, "IPv6") == TRUE) {
1739 err = extract_ip(&value, AF_INET6, data);
1741 } else if (g_str_equal(key, "ServerRoutes") == TRUE) {
1742 err = routes_changed(&value, data->server_routes);
1744 * Note that the vpnd will delay the route sending a bit
1745 * (in order to collect the routes from VPN client),
1746 * so we might have got the State changed property before
1747 * we got ServerRoutes. This means that we must try to set
1748 * the routes here because they would be left unset otherwise.
1751 set_routes(data->provider,
1752 CONNMAN_PROVIDER_ROUTE_SERVER);
1753 } else if (g_str_equal(key, "UserRoutes") == TRUE) {
1754 err = routes_changed(&value, data->user_routes);
1756 set_routes(data->provider,
1757 CONNMAN_PROVIDER_ROUTE_USER);
1758 } else if (g_str_equal(key, "Nameservers") == TRUE) {
1759 extract_nameservers(&value, data);
1762 if (ip_set == TRUE && err == 0) {
1763 err = connman_provider_set_ipaddress(data->provider, data->ip);
1765 DBG("setting provider IP address failed (%s/%d)",
1766 strerror(-err), -err);
1772 static int vpn_init(void)
1776 connection = connman_dbus_get_connection();
1777 if (connection == NULL)
1780 watch = g_dbus_add_service_watch(connection, VPN_SERVICE,
1781 vpnd_created, vpnd_removed, &provider_driver, NULL);
1783 added_watch = g_dbus_add_signal_watch(connection, VPN_SERVICE, NULL,
1784 VPN_MANAGER_INTERFACE,
1785 CONNECTION_ADDED, connection_added,
1786 &provider_driver, NULL);
1788 removed_watch = g_dbus_add_signal_watch(connection, VPN_SERVICE, NULL,
1789 VPN_MANAGER_INTERFACE,
1790 CONNECTION_REMOVED, connection_removed,
1793 property_watch = g_dbus_add_signal_watch(connection, VPN_SERVICE, NULL,
1794 VPN_CONNECTION_INTERFACE,
1795 PROPERTY_CHANGED, property_changed,
1798 if (added_watch == 0 || removed_watch == 0 || property_watch == 0) {
1803 err = connman_provider_driver_register(&provider_driver);
1805 vpn_connections = g_hash_table_new_full(g_str_hash,
1807 g_free, connection_destroy);
1809 vpnd_created(connection, &provider_driver);
1815 g_dbus_remove_watch(connection, watch);
1816 g_dbus_remove_watch(connection, added_watch);
1817 g_dbus_remove_watch(connection, removed_watch);
1818 g_dbus_remove_watch(connection, property_watch);
1820 dbus_connection_unref(connection);
1825 static void vpn_exit(void)
1827 g_dbus_remove_watch(connection, watch);
1828 g_dbus_remove_watch(connection, added_watch);
1829 g_dbus_remove_watch(connection, removed_watch);
1830 g_dbus_remove_watch(connection, property_watch);
1832 connman_provider_driver_unregister(&provider_driver);
1834 if (vpn_connections != NULL)
1835 g_hash_table_destroy(vpn_connections);
1837 dbus_connection_unref(connection);
1840 CONNMAN_PLUGIN_DEFINE(vpn, "VPN plugin", VERSION,
1841 CONNMAN_PLUGIN_PRIORITY_DEFAULT, vpn_init, vpn_exit)