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authorJukka Rissanen <jukka.rissanen@linux.intel.com>2012-11-30 11:30:44 +0200
committerPatrik Flykt <patrik.flykt@linux.intel.com>2012-11-30 15:01:19 +0200
commit6e79c6a7d31839a9f18935737a6f1e712f8cbe79 (patch)
tree3e54ee373025067f14b5769313c9c65ab15fd055 /vpn/plugins
parentdf990b51eac495ac3b482629a9798938e14f0ad4 (diff)
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l2tp: Ask username and password from agent
Diffstat (limited to 'vpn/plugins')
-rw-r--r--vpn/plugins/l2tp.c248
1 files changed, 236 insertions, 12 deletions
diff --git a/vpn/plugins/l2tp.c b/vpn/plugins/l2tp.c
index 05341d5f..9729a75c 100644
--- a/vpn/plugins/l2tp.c
+++ b/vpn/plugins/l2tp.c
@@ -44,6 +44,11 @@
#include <connman/task.h>
#include <connman/dbus.h>
#include <connman/inet.h>
+#include <connman/agent.h>
+#include <connman/setting.h>
+#include <connman/vpn-dbus.h>
+
+#include "../vpn-provider.h"
#include "vpn.h"
@@ -111,6 +116,13 @@ struct {
static DBusConnection *connection;
+struct l2tp_private_data {
+ struct connman_task *task;
+ char *if_name;
+ vpn_provider_connect_cb_t cb;
+ void *user_data;
+};
+
static DBusMessage *l2tp_get_sec(struct connman_task *task,
DBusMessage *msg, void *user_data)
{
@@ -446,28 +458,166 @@ static void l2tp_died(struct connman_task *task, int exit_code, void *user_data)
g_free(conf_file);
}
-static int l2tp_connect(struct vpn_provider *provider,
+struct request_input_reply {
+ struct vpn_provider *provider;
+ vpn_provider_password_cb_t callback;
+ void *user_data;
+};
+
+static void request_input_reply(DBusMessage *reply, void *user_data)
+{
+ struct request_input_reply *l2tp_reply = user_data;
+ const char *error = NULL;
+ char *username = NULL, *password = NULL;
+ char *key;
+ DBusMessageIter iter, dict;
+
+ DBG("provider %p", l2tp_reply->provider);
+
+ if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
+ error = dbus_message_get_error_name(reply);
+ goto done;
+ }
+
+ if (vpn_agent_check_reply_has_dict(reply) == FALSE)
+ goto done;
+
+ dbus_message_iter_init(reply, &iter);
+ dbus_message_iter_recurse(&iter, &dict);
+ while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
+ DBusMessageIter entry, value;
+ const char *str;
+
+ dbus_message_iter_recurse(&dict, &entry);
+ if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
+ break;
+
+ dbus_message_iter_get_basic(&entry, &key);
+
+ if (g_str_equal(key, "Username")) {
+ dbus_message_iter_next(&entry);
+ if (dbus_message_iter_get_arg_type(&entry)
+ != DBUS_TYPE_VARIANT)
+ break;
+ dbus_message_iter_recurse(&entry, &value);
+ if (dbus_message_iter_get_arg_type(&value)
+ != DBUS_TYPE_STRING)
+ break;
+ dbus_message_iter_get_basic(&value, &str);
+ username = g_strdup(str);
+ }
+
+ if (g_str_equal(key, "Password")) {
+ dbus_message_iter_next(&entry);
+ if (dbus_message_iter_get_arg_type(&entry)
+ != DBUS_TYPE_VARIANT)
+ break;
+ dbus_message_iter_recurse(&entry, &value);
+ if (dbus_message_iter_get_arg_type(&value)
+ != DBUS_TYPE_STRING)
+ break;
+ dbus_message_iter_get_basic(&value, &str);
+ password = g_strdup(str);
+ }
+
+ dbus_message_iter_next(&dict);
+ }
+
+done:
+ l2tp_reply->callback(l2tp_reply->provider, username, password, error,
+ l2tp_reply->user_data);
+
+ g_free(username);
+ g_free(password);
+
+ g_free(l2tp_reply);
+}
+
+typedef void (* request_cb_t)(struct vpn_provider *provider,
+ const char *username, const char *password,
+ const char *error, void *user_data);
+
+static int request_input(struct vpn_provider *provider,
+ request_cb_t callback, void *user_data)
+{
+ DBusMessage *message;
+ const char *path, *agent_sender, *agent_path;
+ DBusMessageIter iter;
+ DBusMessageIter dict;
+ struct request_input_reply *l2tp_reply;
+ int err;
+
+ connman_agent_get_info(&agent_sender, &agent_path);
+
+ if (provider == NULL || agent_path == NULL || callback == NULL)
+ return -ESRCH;
+
+ message = dbus_message_new_method_call(agent_sender, agent_path,
+ VPN_AGENT_INTERFACE,
+ "RequestInput");
+ if (message == NULL)
+ return -ENOMEM;
+
+ dbus_message_iter_init_append(message, &iter);
+
+ path = vpn_provider_get_path(provider);
+ dbus_message_iter_append_basic(&iter,
+ DBUS_TYPE_OBJECT_PATH, &path);
+
+ connman_dbus_dict_open(&iter, &dict);
+
+ vpn_agent_append_user_info(&dict, provider, "L2TP.User");
+
+ vpn_agent_append_host_and_name(&dict, provider);
+
+ connman_dbus_dict_close(&iter, &dict);
+
+ l2tp_reply = g_try_new0(struct request_input_reply, 1);
+ if (l2tp_reply == NULL) {
+ dbus_message_unref(message);
+ return -ENOMEM;
+ }
+
+ l2tp_reply->provider = provider;
+ l2tp_reply->callback = callback;
+ l2tp_reply->user_data = user_data;
+
+ err = connman_agent_queue_message(provider, message,
+ connman_timeout_input_request(),
+ request_input_reply, l2tp_reply);
+ if (err < 0 && err != -EBUSY) {
+ DBG("error %d sending agent request", err);
+ dbus_message_unref(message);
+ g_free(l2tp_reply);
+ return err;
+ }
+
+ dbus_message_unref(message);
+
+ return -EINPROGRESS;
+}
+
+static int run_connect(struct vpn_provider *provider,
struct connman_task *task, const char *if_name,
- vpn_provider_connect_cb_t cb, void *user_data)
+ vpn_provider_connect_cb_t cb, void *user_data,
+ const char *username, const char *password)
{
- const char *host;
char *l2tp_name, *pppd_name;
int l2tp_fd, pppd_fd;
int err;
- if (connman_task_set_notify(task, "getsec",
- l2tp_get_sec, provider) != 0) {
- err = -ENOMEM;
- goto done;
- }
-
- host = vpn_provider_get_string(provider, "Host");
- if (host == NULL) {
- connman_error("Host not set; cannot enable VPN");
+ if (username == NULL || password == NULL) {
+ DBG("Cannot connect username %s password %p",
+ username, password);
err = -EINVAL;
goto done;
}
+ vpn_provider_set_string(provider, "L2TP.User", username);
+ vpn_provider_set_string(provider, "L2TP.Password", password);
+
+ DBG("username %s password %p", username, password);
+
l2tp_name = g_strdup_printf("/var/run/connman/connman-xl2tpd.conf");
l2tp_fd = open(l2tp_name, O_RDWR|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR);
@@ -515,6 +665,80 @@ done:
return err;
}
+static void free_private_data(struct l2tp_private_data *data)
+{
+ g_free(data->if_name);
+ g_free(data);
+}
+
+static void request_input_cb(struct vpn_provider *provider,
+ const char *username,
+ const char *password,
+ const char *error, void *user_data)
+{
+ struct l2tp_private_data *data = user_data;
+
+ if (username == NULL || password == NULL)
+ DBG("Requesting username %s or password failed, error %s",
+ username, error);
+ else if (error != NULL)
+ DBG("error %s", error);
+
+ run_connect(provider, data->task, data->if_name, data->cb,
+ data->user_data, username, password);
+
+ free_private_data(data);
+}
+
+static int l2tp_connect(struct vpn_provider *provider,
+ struct connman_task *task, const char *if_name,
+ vpn_provider_connect_cb_t cb, void *user_data)
+{
+ const char *username, *password;
+ int err;
+
+ if (connman_task_set_notify(task, "getsec",
+ l2tp_get_sec, provider) != 0) {
+ err = -ENOMEM;
+ goto error;
+ }
+
+ username = vpn_provider_get_string(provider, "L2TP.User");
+ password = vpn_provider_get_string(provider, "L2TP.Password");
+
+ DBG("user %s password %p", username, password);
+
+ if (username == NULL || password == NULL) {
+ struct l2tp_private_data *data;
+
+ data = g_try_new0(struct l2tp_private_data, 1);
+ if (data == NULL)
+ return -ENOMEM;
+
+ data->task = task;
+ data->if_name = g_strdup(if_name);
+ data->cb = cb;
+ data->user_data = user_data;
+
+ err = request_input(provider, request_input_cb, data);
+ if (err != -EINPROGRESS) {
+ free_private_data(data);
+ goto done;
+ }
+ return err;
+ }
+
+done:
+ return run_connect(provider, task, if_name, cb, user_data,
+ username, password);
+
+error:
+ if (cb != NULL)
+ cb(provider, user_data, err);
+
+ return err;
+}
+
static int l2tp_error_code(int exit_code)
{
switch (exit_code) {