mirror of git://git.sysmocom.de/ofono
528 lines
12 KiB
C
528 lines
12 KiB
C
/*
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*
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* oFono - Open Source Telephony
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*
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*
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* Copyright (C) 2008-2016 Intel Corporation. All rights reserved.
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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 "netmonagent.h"
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#define CELL_INFO_DICT_APPEND(p_dict, key, info, type, dbus_type) do { \
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type value; \
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if (info < 0) \
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break; \
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value = (type) info; \
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ofono_dbus_dict_append(p_dict, key, dbus_type, &value); \
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} while (0)
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static GSList *g_drivers = NULL;
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struct ofono_netmon {
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const struct ofono_netmon_driver *driver;
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DBusMessage *pending;
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DBusMessage *reply;
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void *driver_data;
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struct ofono_atom *atom;
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struct netmon_agent *agent;
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};
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static const char *cell_type_to_tech_name(enum ofono_netmon_cell_type type)
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{
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switch (type) {
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case OFONO_NETMON_CELL_TYPE_GSM:
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return "gsm";
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case OFONO_NETMON_CELL_TYPE_UMTS:
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return "umts";
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case OFONO_NETMON_CELL_TYPE_LTE:
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return "lte";
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}
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return NULL;
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}
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void ofono_netmon_serving_cell_notify(struct ofono_netmon *netmon,
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enum ofono_netmon_cell_type type,
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int info_type, ...)
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{
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va_list arglist;
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DBusMessage *agent_notify = NULL;
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DBusMessageIter iter;
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DBusMessageIter dict;
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enum ofono_netmon_info next_info_type = info_type;
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const char *technology = cell_type_to_tech_name(type);
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char *mcc;
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char *mnc;
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int intval;
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if (netmon->pending != NULL) {
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netmon->reply = dbus_message_new_method_return(netmon->pending);
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dbus_message_iter_init_append(netmon->reply, &iter);
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} else if (netmon->agent != NULL) {
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agent_notify = netmon_agent_new_method_call(netmon->agent,
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"ServingCellInformationChanged");
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dbus_message_iter_init_append(agent_notify, &iter);
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} else
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return;
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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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va_start(arglist, info_type);
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if (technology == NULL)
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goto done;
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ofono_dbus_dict_append(&dict, "Technology",
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DBUS_TYPE_STRING, &technology);
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while (next_info_type != OFONO_NETMON_INFO_INVALID) {
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switch (next_info_type) {
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case OFONO_NETMON_INFO_MCC:
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mcc = va_arg(arglist, char *);
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if (mcc && strlen(mcc))
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ofono_dbus_dict_append(&dict,
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"MobileCountryCode",
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DBUS_TYPE_STRING, &mcc);
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break;
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case OFONO_NETMON_INFO_MNC:
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mnc = va_arg(arglist, char *);
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if (mnc && strlen(mnc))
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ofono_dbus_dict_append(&dict,
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"MobileNetworkCode",
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DBUS_TYPE_STRING, &mnc);
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break;
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case OFONO_NETMON_INFO_LAC:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "LocationAreaCode",
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intval, uint16_t, DBUS_TYPE_UINT16);
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break;
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case OFONO_NETMON_INFO_CI:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "CellId",
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intval, uint32_t, DBUS_TYPE_UINT32);
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break;
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case OFONO_NETMON_INFO_ARFCN:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "ARFCN",
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intval, uint16_t, DBUS_TYPE_UINT16);
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break;
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case OFONO_NETMON_INFO_BSIC:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "BSIC",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_RXLEV:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "ReceivedSignalStrength",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_TIMING_ADVANCE:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "TimingAdvance",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_PSC:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "PrimaryScramblingCode",
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intval, uint16_t, DBUS_TYPE_UINT16);
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break;
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case OFONO_NETMON_INFO_BER:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "BitErrorRate",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_RSSI:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "Strength",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_RSCP:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "ReceivedSignalCodePower",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_ECN0:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "ReceivedEnergyRatio",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_RSRQ:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict,
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"ReferenceSignalReceivedQuality",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_RSRP:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict,
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"ReferenceSignalReceivedPower",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_EARFCN:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "EARFCN",
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intval, uint16_t, DBUS_TYPE_UINT16);
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break;
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case OFONO_NETMON_INFO_EBAND:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "EBand",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_CQI:
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intval = va_arg(arglist, int);
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CELL_INFO_DICT_APPEND(&dict, "ChannelQualityIndicator",
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intval, uint8_t, DBUS_TYPE_BYTE);
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break;
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case OFONO_NETMON_INFO_INVALID:
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break;
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}
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next_info_type = va_arg(arglist, int);
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}
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done:
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va_end(arglist);
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dbus_message_iter_close_container(&iter, &dict);
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if (agent_notify)
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netmon_agent_send_no_reply(netmon->agent, agent_notify);
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}
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static void serving_cell_info_callback(const struct ofono_error *error,
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void *data)
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{
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struct ofono_netmon *netmon = data;
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DBusMessage *reply = netmon->reply;
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if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
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if (reply)
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dbus_message_unref(reply);
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reply = __ofono_error_failed(netmon->pending);
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} else if (!reply) {
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DBusMessageIter iter;
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DBusMessageIter dict;
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reply = dbus_message_new_method_return(netmon->pending);
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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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dbus_message_iter_close_container(&iter, &dict);
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}
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netmon->reply = NULL;
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__ofono_dbus_pending_reply(&netmon->pending, reply);
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}
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static DBusMessage *netmon_get_serving_cell_info(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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struct ofono_netmon *netmon = data;
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if (!netmon->driver && !netmon->driver->request_update)
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return __ofono_error_not_implemented(msg);
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if (netmon->pending)
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return __ofono_error_busy(msg);
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netmon->pending = dbus_message_ref(msg);
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netmon->driver->request_update(netmon,
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serving_cell_info_callback, netmon);
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return NULL;
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}
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static void periodic_updates_enabled_cb(const struct ofono_error *error,
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void *data)
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{
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struct ofono_netmon *netmon = data;
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if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
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ofono_error("Error enabling periodic updates");
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netmon_agent_free(netmon->agent);
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return;
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}
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}
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static void periodic_updates_disabled_cb(const struct ofono_error *error,
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void *data)
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{
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if (error->type != OFONO_ERROR_TYPE_NO_ERROR)
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ofono_error("Error disabling periodic updates");
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}
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static void agent_removed_cb(gpointer user_data)
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{
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struct ofono_netmon *netmon = user_data;
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netmon->agent = NULL;
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netmon->driver->enable_periodic_update(netmon, 0, 0,
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periodic_updates_disabled_cb,
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NULL);
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}
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static DBusMessage *netmon_register_agent(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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struct ofono_netmon *netmon = data;
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const char *agent_path;
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const unsigned int enable = 1;
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unsigned int period;
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if (netmon->agent)
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return __ofono_error_busy(msg);
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if (!netmon->driver->enable_periodic_update)
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return __ofono_error_not_implemented(msg);
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if (dbus_message_get_args(msg, NULL,
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DBUS_TYPE_OBJECT_PATH, &agent_path,
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DBUS_TYPE_UINT32, &period,
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DBUS_TYPE_INVALID) == FALSE)
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return __ofono_error_invalid_args(msg);
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if (!dbus_validate_path(agent_path, NULL))
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return __ofono_error_invalid_format(msg);
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if (!period)
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return __ofono_error_invalid_args(msg);
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/* minimum period is 5 seconds, to avoid frequent updates*/
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if (period < 5)
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period = 5;
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netmon->agent = netmon_agent_new(agent_path,
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dbus_message_get_sender(msg));
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if (netmon->agent == NULL)
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return __ofono_error_failed(msg);
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netmon_agent_set_removed_notify(netmon->agent, agent_removed_cb, netmon);
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netmon->driver->enable_periodic_update(netmon, enable, period,
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periodic_updates_enabled_cb, netmon);
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return dbus_message_new_method_return(msg);
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}
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static DBusMessage *netmon_unregister_agent(DBusConnection *conn,
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DBusMessage *msg, void *data)
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{
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struct ofono_netmon *netmon = data;
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const char *agent_path;
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const char *agent_bus = dbus_message_get_sender(msg);
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if (!netmon->driver->enable_periodic_update)
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return __ofono_error_not_implemented(msg);
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if (dbus_message_get_args(msg, NULL,
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DBUS_TYPE_OBJECT_PATH, &agent_path,
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DBUS_TYPE_INVALID) == FALSE)
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return __ofono_error_invalid_args(msg);
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if (netmon->agent == NULL)
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return __ofono_error_failed(msg);
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if (!netmon_agent_matches(netmon->agent, agent_path, agent_bus))
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return __ofono_error_access_denied(msg);
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netmon_agent_free(netmon->agent);
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return dbus_message_new_method_return(msg);
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}
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static const GDBusMethodTable netmon_methods[] = {
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{ GDBUS_ASYNC_METHOD("GetServingCellInformation",
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NULL, GDBUS_ARGS({ "cellinfo", "a{sv}" }),
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netmon_get_serving_cell_info) },
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{ GDBUS_METHOD("RegisterAgent",
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GDBUS_ARGS({ "path", "o"}, { "period", "u"}), NULL,
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netmon_register_agent) },
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{ GDBUS_METHOD("UnregisterAgent",
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GDBUS_ARGS({ "agent", "o" }), NULL,
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netmon_unregister_agent) },
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{ }
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};
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int ofono_netmon_driver_register(const struct ofono_netmon_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_netmon_driver_unregister(const struct ofono_netmon_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 netmon_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_NETMON_INTERFACE);
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g_dbus_unregister_interface(conn, path, OFONO_NETMON_INTERFACE);
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}
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static void netmon_remove(struct ofono_atom *atom)
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{
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struct ofono_netmon *netmon = __ofono_atom_get_data(atom);
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if (netmon == NULL)
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return;
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if (netmon->driver && netmon->driver->remove)
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netmon->driver->remove(netmon);
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g_free(netmon);
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}
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struct ofono_netmon *ofono_netmon_create(struct ofono_modem *modem,
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unsigned int vendor, const char *driver, void *data)
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{
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struct ofono_netmon *netmon;
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GSList *l;
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if (driver == NULL)
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return NULL;
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netmon = g_try_new0(struct ofono_netmon, 1);
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if (netmon == NULL)
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return NULL;
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netmon->atom = __ofono_modem_add_atom(modem, OFONO_ATOM_TYPE_NETMON,
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netmon_remove, netmon);
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for (l = g_drivers; l; l = l->next) {
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const struct ofono_netmon_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(netmon, vendor, data) < 0)
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continue;
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netmon->driver = drv;
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break;
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}
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return netmon;
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}
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void ofono_netmon_register(struct ofono_netmon *netmon)
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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(netmon->atom);
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const char *path = __ofono_atom_get_path(netmon->atom);
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if (!g_dbus_register_interface(conn, path,
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OFONO_NETMON_INTERFACE,
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netmon_methods, NULL, NULL,
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netmon, NULL)) {
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ofono_error("Could not create %s interface",
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OFONO_NETMON_INTERFACE);
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return;
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}
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ofono_modem_add_interface(modem, OFONO_NETMON_INTERFACE);
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__ofono_atom_register(netmon->atom, netmon_unregister);
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}
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void ofono_netmon_remove(struct ofono_netmon *netmon)
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{
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__ofono_atom_free(netmon->atom);
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}
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void ofono_netmon_set_data(struct ofono_netmon *netmon, void *data)
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{
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netmon->driver_data = data;
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}
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void *ofono_netmon_get_data(struct ofono_netmon *netmon)
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{
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return netmon->driver_data;
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}
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