mirror of git://git.sysmocom.de/ofono
489 lines
13 KiB
C
489 lines
13 KiB
C
/*
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*
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* oFono - Open Source Telephony
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*
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* Copyright (C) 2016 Endocode AG. All rights reserved.
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* Copyright (C) 2018 Gemalto M2M
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <string.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <glib.h>
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#include <gdbus.h>
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#include "ofono.h"
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#include "common.h"
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#include "storage.h"
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#define SETTINGS_STORE "lte"
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#define SETTINGS_GROUP "Settings"
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#define LTE_APN "DefaultAccessPointName"
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#define LTE_PROTO "Protocol"
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#define LTE_USERNAME "Username"
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#define LTE_PASSWORD "Password"
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#define LTE_AUTH_METHOD "AuthenticationMethod"
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struct ofono_lte {
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const struct ofono_lte_driver *driver;
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void *driver_data;
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struct ofono_atom *atom;
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char *imsi;
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GKeyFile *settings;
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DBusMessage *pending;
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struct ofono_lte_default_attach_info pending_info;
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struct ofono_lte_default_attach_info info;
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};
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static GSList *g_drivers = NULL;
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static void lte_load_settings(struct ofono_lte *lte)
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{
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char *apn;
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char *proto_str;
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char *auth_method_str;
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char *username;
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char *password;
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if (lte->imsi == NULL)
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return;
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lte->settings = storage_open(lte->imsi, SETTINGS_STORE);
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if (lte->settings == NULL) {
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ofono_error("LTE: Can't open settings file, "
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"changes won't be persistent");
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return;
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}
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apn = g_key_file_get_string(lte->settings, SETTINGS_GROUP,
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LTE_APN, NULL);
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proto_str = g_key_file_get_string(lte->settings, SETTINGS_GROUP,
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LTE_PROTO, NULL);
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auth_method_str = g_key_file_get_string(lte->settings, SETTINGS_GROUP,
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LTE_AUTH_METHOD, NULL);
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username = g_key_file_get_string(lte->settings, SETTINGS_GROUP,
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LTE_USERNAME, NULL);
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password = g_key_file_get_string(lte->settings, SETTINGS_GROUP,
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LTE_PASSWORD, NULL);
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if (apn && is_valid_apn(apn))
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strcpy(lte->info.apn, apn);
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if (proto_str == NULL)
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proto_str = g_strdup("ip");
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/* this must have a valid default */
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if (!gprs_proto_from_string(proto_str, <e->info.proto))
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lte->info.proto = OFONO_GPRS_PROTO_IP;
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if (auth_method_str == NULL)
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auth_method_str = g_strdup("none");
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/* this must have a valid default */
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if (!gprs_auth_method_from_string(auth_method_str,
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<e->info.auth_method))
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lte->info.auth_method = OFONO_GPRS_AUTH_METHOD_NONE;
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if (username && strlen(username) <= OFONO_GPRS_MAX_USERNAME_LENGTH)
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strcpy(lte->info.username, username);
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if (password && strlen(password) <= OFONO_GPRS_MAX_PASSWORD_LENGTH)
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strcpy(lte->info.password, password);
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g_free(apn);
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g_free(proto_str);
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g_free(auth_method_str);
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g_free(username);
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g_free(password);
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}
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static DBusMessage *lte_get_properties(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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struct ofono_lte *lte = data;
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const char *proto = gprs_proto_to_string(lte->info.proto);
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const char *apn = lte->info.apn;
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const char* auth_method =
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gprs_auth_method_to_string(lte->info.auth_method);
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const char *username = lte->info.username;
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const char *password = lte->info.password;
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DBusMessage *reply;
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DBusMessageIter iter;
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DBusMessageIter dict;
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reply = dbus_message_new_method_return(msg);
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if (reply == NULL)
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return NULL;
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dbus_message_iter_init_append(reply, &iter);
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dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
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OFONO_PROPERTIES_ARRAY_SIGNATURE,
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&dict);
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ofono_dbus_dict_append(&dict, LTE_APN, DBUS_TYPE_STRING, &apn);
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ofono_dbus_dict_append(&dict, LTE_PROTO, DBUS_TYPE_STRING, &proto);
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ofono_dbus_dict_append(&dict, LTE_AUTH_METHOD, DBUS_TYPE_STRING,
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&auth_method);
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ofono_dbus_dict_append(&dict, LTE_USERNAME, DBUS_TYPE_STRING,
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&username);
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ofono_dbus_dict_append(&dict, LTE_PASSWORD, DBUS_TYPE_STRING,
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&password);
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dbus_message_iter_close_container(&iter, &dict);
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return reply;
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}
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static void lte_set_default_attach_info_cb(const struct ofono_error *error,
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void *data)
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{
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struct ofono_lte *lte = data;
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const char *path = __ofono_atom_get_path(lte->atom);
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DBusConnection *conn = ofono_dbus_get_connection();
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DBusMessage *reply;
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char *key;
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char *value;
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const char *str;
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DBusMessageIter iter;
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DBusMessageIter var;
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DBG("%s error %d", path, error->type);
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if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
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__ofono_dbus_pending_reply(<e->pending,
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__ofono_error_failed(lte->pending));
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return;
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}
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/*
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* Reparsing of the message to extract the key and value
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* No error checking needed since we already validated pending
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*/
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dbus_message_iter_init(lte->pending, &iter);
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dbus_message_iter_get_basic(&iter, &str);
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key = strdup(str);
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dbus_message_iter_next(&iter);
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dbus_message_iter_recurse(&iter, &var);
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dbus_message_iter_get_basic(&var, &str);
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value = strdup(str);
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memcpy(<e->info, <e->pending_info, sizeof(lte->info));
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reply = dbus_message_new_method_return(lte->pending);
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__ofono_dbus_pending_reply(<e->pending, reply);
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if (lte->settings) {
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/*
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* the following code removes from storage empty APN, user, pwd
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* for proto and auth_method, given that they always
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* have defaults, it will not do anything.
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*/
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if (!*value)
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/* Clear entry on empty string. */
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g_key_file_remove_key(lte->settings,
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SETTINGS_GROUP, key, NULL);
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else
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g_key_file_set_string(lte->settings,
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SETTINGS_GROUP, key, value);
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storage_sync(lte->imsi, SETTINGS_STORE, lte->settings);
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}
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ofono_dbus_signal_property_changed(conn, path,
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OFONO_CONNECTION_CONTEXT_INTERFACE,
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key,
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DBUS_TYPE_STRING, &value);
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g_free(value);
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g_free(key);
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}
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static DBusMessage *lte_set_property(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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struct ofono_lte *lte = data;
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DBusMessageIter iter;
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DBusMessageIter var;
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const char *property;
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const char *str;
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enum ofono_gprs_auth_method auth_method;
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enum ofono_gprs_proto proto;
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if (lte->driver->set_default_attach_info == NULL)
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return __ofono_error_not_implemented(msg);
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if (lte->pending)
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return __ofono_error_busy(msg);
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if (!dbus_message_iter_init(msg, &iter))
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return __ofono_error_invalid_args(msg);
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if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
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return __ofono_error_invalid_args(msg);
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dbus_message_iter_get_basic(&iter, &property);
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dbus_message_iter_next(&iter);
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if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
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return __ofono_error_invalid_args(msg);
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dbus_message_iter_recurse(&iter, &var);
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if (dbus_message_iter_get_arg_type(&var) != DBUS_TYPE_STRING)
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return __ofono_error_invalid_args(msg);
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dbus_message_iter_get_basic(&var, &str);
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memcpy(<e->pending_info, <e->info, sizeof(lte->info));
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if ((strcmp(property, LTE_APN) == 0)) {
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if (g_str_equal(str, lte->info.apn))
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return dbus_message_new_method_return(msg);
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/* We do care about empty value: it can be used for reset. */
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if (is_valid_apn(str) == FALSE && str[0] != '\0')
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return __ofono_error_invalid_format(msg);
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g_strlcpy(lte->pending_info.apn, str,
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OFONO_GPRS_MAX_APN_LENGTH + 1);
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} else if ((strcmp(property, LTE_PROTO) == 0)) {
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if (!gprs_proto_from_string(str, &proto))
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return __ofono_error_invalid_format(msg);
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if (proto == lte->info.proto)
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return dbus_message_new_method_return(msg);
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lte->pending_info.proto = proto;
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} else if (strcmp(property, LTE_AUTH_METHOD) == 0) {
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if (!gprs_auth_method_from_string(str, &auth_method))
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return __ofono_error_invalid_format(msg);
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if (auth_method == lte->info.auth_method)
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return dbus_message_new_method_return(msg);
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lte->pending_info.auth_method = auth_method;
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} else if (strcmp(property, LTE_USERNAME) == 0) {
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if (strlen(str) > OFONO_GPRS_MAX_USERNAME_LENGTH)
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return __ofono_error_invalid_format(msg);
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if (g_str_equal(str, lte->info.username))
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return dbus_message_new_method_return(msg);
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g_strlcpy(lte->pending_info.username, str,
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OFONO_GPRS_MAX_USERNAME_LENGTH + 1);
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} else if (strcmp(property, LTE_PASSWORD) == 0) {
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if (strlen(str) > OFONO_GPRS_MAX_PASSWORD_LENGTH)
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return __ofono_error_invalid_format(msg);
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if (g_str_equal(str, lte->info.password))
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return dbus_message_new_method_return(msg);
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g_strlcpy(lte->pending_info.password, str,
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OFONO_GPRS_MAX_PASSWORD_LENGTH + 1);
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} else
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return __ofono_error_invalid_args(msg);
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lte->pending = dbus_message_ref(msg);
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lte->driver->set_default_attach_info(lte, <e->pending_info,
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lte_set_default_attach_info_cb, lte);
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return NULL;
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}
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static const GDBusMethodTable lte_methods[] = {
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{ GDBUS_METHOD("GetProperties",
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NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
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lte_get_properties) },
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{ GDBUS_ASYNC_METHOD("SetProperty",
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GDBUS_ARGS({ "property", "s" }, { "value", "v" }),
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NULL, lte_set_property) },
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{ }
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};
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static const GDBusSignalTable lte_signals[] = {
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{ GDBUS_SIGNAL("PropertyChanged",
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GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
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{ }
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};
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static void lte_atom_remove(struct ofono_atom *atom)
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{
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struct ofono_lte *lte = __ofono_atom_get_data(atom);
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DBG("atom: %p", atom);
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if (lte == NULL)
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return;
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if (lte->settings) {
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storage_close(lte->imsi, SETTINGS_STORE, lte->settings, TRUE);
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lte->settings = NULL;
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}
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if (lte->driver && lte->driver->remove)
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lte->driver->remove(lte);
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g_free(lte->imsi);
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lte->imsi = NULL;
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g_free(lte);
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}
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struct ofono_lte *ofono_lte_create(struct ofono_modem *modem,
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unsigned int vendor,
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const char *driver, void *data)
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{
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struct ofono_lte *lte;
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GSList *l;
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if (driver == NULL)
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return NULL;
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lte = g_try_new0(struct ofono_lte, 1);
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if (lte == NULL)
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return NULL;
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lte->atom = __ofono_modem_add_atom(modem, OFONO_ATOM_TYPE_LTE,
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lte_atom_remove, lte);
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for (l = g_drivers; l; l = l->next) {
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const struct ofono_lte_driver *drv = l->data;
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if (g_strcmp0(drv->name, driver))
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continue;
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if (drv->probe(lte, vendor, data) < 0)
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continue;
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lte->driver = drv;
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break;
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}
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DBG("LTE atom created");
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return lte;
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}
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int ofono_lte_driver_register(const struct ofono_lte_driver *d)
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{
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DBG("driver: %p, name: %s", d, d->name);
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if (d->probe == NULL)
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return -EINVAL;
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g_drivers = g_slist_prepend(g_drivers, (void *) d);
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return 0;
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}
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void ofono_lte_driver_unregister(const struct ofono_lte_driver *d)
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{
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DBG("driver: %p, name: %s", d, d->name);
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g_drivers = g_slist_remove(g_drivers, (void *) d);
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}
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static void lte_atom_unregister(struct ofono_atom *atom)
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{
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DBusConnection *conn = ofono_dbus_get_connection();
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struct ofono_modem *modem = __ofono_atom_get_modem(atom);
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const char *path = __ofono_atom_get_path(atom);
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ofono_modem_remove_interface(modem, OFONO_LTE_INTERFACE);
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g_dbus_unregister_interface(conn, path, OFONO_LTE_INTERFACE);
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}
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static void ofono_lte_finish_register(struct ofono_lte *lte)
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{
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DBusConnection *conn = ofono_dbus_get_connection();
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struct ofono_modem *modem = __ofono_atom_get_modem(lte->atom);
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const char *path = __ofono_atom_get_path(lte->atom);
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if (!g_dbus_register_interface(conn, path,
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OFONO_LTE_INTERFACE,
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lte_methods, lte_signals, NULL,
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lte, NULL)) {
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ofono_error("could not create %s interface",
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OFONO_LTE_INTERFACE);
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return;
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}
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ofono_modem_add_interface(modem, OFONO_LTE_INTERFACE);
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__ofono_atom_register(lte->atom, lte_atom_unregister);
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}
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static void lte_init_default_attach_info_cb(const struct ofono_error *error,
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void *data)
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{
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struct ofono_lte *lte = data;
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ofono_lte_finish_register(lte);
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}
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void ofono_lte_register(struct ofono_lte *lte)
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{
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struct ofono_modem *modem = __ofono_atom_get_modem(lte->atom);
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struct ofono_sim *sim = __ofono_atom_find(OFONO_ATOM_TYPE_SIM, modem);
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const char *imsi = ofono_sim_get_imsi(sim);
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if (imsi == NULL) {
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ofono_error("No sim atom found. It is required for registering LTE atom.");
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return;
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}
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lte->imsi = g_strdup(imsi);
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lte_load_settings(lte);
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if (lte->driver->set_default_attach_info) {
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lte->driver->set_default_attach_info(lte, <e->info,
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lte_init_default_attach_info_cb, lte);
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return;
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}
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ofono_lte_finish_register(lte);
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}
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void ofono_lte_remove(struct ofono_lte *lte)
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{
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__ofono_atom_free(lte->atom);
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}
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void ofono_lte_set_data(struct ofono_lte *lte, void *data)
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{
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lte->driver_data = data;
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}
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void *ofono_lte_get_data(const struct ofono_lte *lte)
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{
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return lte->driver_data;
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}
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struct ofono_modem *ofono_lte_get_modem(const struct ofono_lte *lte)
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{
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return __ofono_atom_get_modem(lte->atom);
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}
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