mirror of git://git.sysmocom.de/ofono
366 lines
8.1 KiB
C
366 lines
8.1 KiB
C
/*
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* This file is part of oFono - Open Source Telephony
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*
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* Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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*
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* Contact: Aki Niemi <aki.niemi@nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as 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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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
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* 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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#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <glib.h>
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#include <gisi/client.h>
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#include <ofono/log.h>
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#include <ofono/modem.h>
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#include <ofono/sim.h>
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#include "isi.h"
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#include "simutil.h"
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#define PN_SIM 0x09
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#define SIM_TIMEOUT 5
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#define SIM_MAX_IMSI_LENGTH 15
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enum return_code {
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SIM_SERV_OK = 0x01,
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};
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enum message_id {
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SIM_IMSI_REQ_READ_IMSI = 0x1D,
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SIM_IMSI_RESP_READ_IMSI = 0x1E,
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SIM_SERV_PROV_NAME_REQ = 0x21,
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SIM_SERV_PROV_NAME_RESP = 0x22
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};
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enum service_types {
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SIM_ST_READ_SERV_PROV_NAME = 0x2C,
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READ_IMSI = 0x2D,
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};
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struct sim_data {
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GIsiClient *client;
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};
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static void sim_debug(const void *restrict buf, size_t len, void *data)
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{
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DBG("");
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dump_msg(buf, len);
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}
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/* Returns fake (static) file info for EFSPN */
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static gboolean efspn_file_info(gpointer user)
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{
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struct isi_cb_data *cbd = user;
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ofono_sim_file_info_cb_t cb = cbd->cb;
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unsigned char access[3] = { 0x0f, 0xff, 0xff };
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DBG("Returning dummy file_info for EFSPN");
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CALLBACK_WITH_SUCCESS(cb, 17, 0, 0, access, cbd->data);
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g_free(cbd);
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return FALSE;
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}
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static void isi_read_file_info(struct ofono_sim *sim, int fileid,
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ofono_sim_file_info_cb_t cb, void *data)
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{
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if (fileid == SIM_EFSPN_FILEID) {
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/* Fake response for EFSPN */
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struct isi_cb_data *cbd = isi_cb_data_new(NULL, cb, data);
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g_idle_add(efspn_file_info, cbd);
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return;
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}
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DBG("Not implemented (fileid = %04x)",fileid);
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CALLBACK_WITH_FAILURE(cb, -1, -1, -1, NULL, data);
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}
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static bool spn_resp_cb(GIsiClient * client, const void *restrict data,
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size_t len, uint16_t object, void *opaque)
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{
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const unsigned char *msg = data;
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struct isi_cb_data *cbd = opaque;
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ofono_sim_read_cb_t cb = cbd->cb;
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unsigned char spn[17] = { 0xff };
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int i;
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if (!msg) {
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DBG("ISI client error: %d", g_isi_client_error(client));
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goto error;
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}
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if (len < 39 || msg[0] != SIM_SERV_PROV_NAME_RESP)
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goto error;
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if (msg[1] != SIM_ST_READ_SERV_PROV_NAME || msg[2] != SIM_SERV_OK)
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goto error;
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/* Set display condition bits */
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spn[0] = ((msg[38] & 1) << 1) + (msg[37] & 1);
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/* Dirty conversion from 16bit unicode to ascii */
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for (i = 0; i < 16; i++) {
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unsigned char c = msg[3 + i * 2 + 1];
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if (c == 0)
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c = 0xff;
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else if (!g_ascii_isprint(c))
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c = '?';
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spn[i + 1] = c;
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}
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DBG("SPN read successfully");
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CALLBACK_WITH_SUCCESS(cb, spn, 17, cbd->data);
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goto out;
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error:
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DBG("Error reading SPN");
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CALLBACK_WITH_FAILURE(cb, NULL, 0, cbd->data);
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out:
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g_free(cbd);
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return true;
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}
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static void isi_read_file_transparent(struct ofono_sim *sim, int fileid,
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int start, int length,
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ofono_sim_read_cb_t cb, void *data)
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{
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struct isi_cb_data *cbd = NULL;
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if (fileid == SIM_EFSPN_FILEID) {
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/* Hack support for EFSPN reading */
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struct sim_data *simd = ofono_sim_get_data(sim);
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const unsigned char msg[] = {
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SIM_SERV_PROV_NAME_REQ,
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SIM_ST_READ_SERV_PROV_NAME,
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0
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};
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cbd = isi_cb_data_new(NULL, cb, data);
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if (!simd)
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goto error;
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cbd->user = sim;
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if (g_isi_request_make(simd->client, msg, sizeof(msg),
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SIM_TIMEOUT, spn_resp_cb, cbd))
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return;
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}
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error:
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if (cbd)
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g_free(cbd);
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DBG("Not implemented (fileid = %04x)",fileid);
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CALLBACK_WITH_FAILURE(cb, NULL, 0, data);
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}
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static void isi_read_file_linear(struct ofono_sim *sim, int fileid,
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int record, int length,
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ofono_sim_read_cb_t cb, void *data)
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{
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DBG("Not implemented (fileid = %04x)",fileid);
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CALLBACK_WITH_FAILURE(cb, NULL, 0, data);
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}
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static void isi_read_file_cyclic(struct ofono_sim *sim, int fileid,
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int record, int length,
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ofono_sim_read_cb_t cb, void *data)
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{
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DBG("Not implemented (fileid = %04x)",fileid);
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CALLBACK_WITH_FAILURE(cb, NULL, 0, data);
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}
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static void isi_write_file_transparent(struct ofono_sim *sim, int fileid,
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int start, int length,
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const unsigned char *value,
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ofono_sim_write_cb_t cb, void *data)
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{
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DBG("Not implemented (fileid = %04x)",fileid);
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CALLBACK_WITH_FAILURE(cb, data);
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}
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static void isi_write_file_linear(struct ofono_sim *sim, int fileid,
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int record, int length,
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const unsigned char *value,
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ofono_sim_write_cb_t cb, void *data)
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{
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DBG("Not implemented (fileid = %04x)",fileid);
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CALLBACK_WITH_FAILURE(cb, data);
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}
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static void isi_write_file_cyclic(struct ofono_sim *sim, int fileid,
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int length, const unsigned char *value,
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ofono_sim_write_cb_t cb, void *data)
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{
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DBG("Not implemented (fileid = %04x)",fileid);
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CALLBACK_WITH_FAILURE(cb, data);
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}
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static bool imsi_resp_cb(GIsiClient *client, const void *restrict data,
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size_t len, uint16_t object, void *opaque)
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{
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const unsigned char *msg = data;
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struct isi_cb_data *cbd = opaque;
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ofono_sim_imsi_cb_t cb = cbd->cb;
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char imsi[SIM_MAX_IMSI_LENGTH + 1];
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size_t i = 0;
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size_t j = 0;
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size_t octets = 0;
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if(!msg) {
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DBG("ISI client error: %d", g_isi_client_error(client));
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goto error;
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}
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if (len < 5 || msg[0] != SIM_IMSI_RESP_READ_IMSI)
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goto error;
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if (msg[1] != READ_IMSI || msg[2] != SIM_SERV_OK)
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goto error;
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octets = msg[3];
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if (octets != 8 || octets > len)
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goto error;
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msg += 4;
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/* Ignore the low-order semi-octet of the first byte */
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imsi[j] = ((msg[i] & 0xF0) >> 4) + '0';
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for (i++, j++; i < octets && j < SIM_MAX_IMSI_LENGTH; i++) {
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char nibble;
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imsi[j++] = (msg[i] & 0x0F) + '0';
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nibble = (msg[i] & 0xF0) >> 4;
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if (nibble != 0x0F)
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imsi[j++] = nibble + '0';
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}
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imsi[j] = '\0';
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CALLBACK_WITH_SUCCESS(cb, imsi, cbd->data);
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goto out;
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error:
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CALLBACK_WITH_FAILURE(cb, NULL, cbd->data);
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out:
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g_free(cbd);
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return true;
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}
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static void isi_read_imsi(struct ofono_sim *sim,
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ofono_sim_imsi_cb_t cb, void *data)
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{
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struct sim_data *sd = ofono_sim_get_data(sim);
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struct isi_cb_data *cbd = isi_cb_data_new(sim, cb, data);
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const unsigned char msg[] = {
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SIM_IMSI_REQ_READ_IMSI,
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READ_IMSI
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};
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if (!cbd)
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goto error;
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if (g_isi_request_make(sd->client, msg, sizeof(msg),
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SIM_TIMEOUT,
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imsi_resp_cb, cbd))
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return;
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error:
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if (cbd)
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g_free(cbd);
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CALLBACK_WITH_FAILURE(cb, NULL, data);
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}
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static gboolean isi_sim_register(gpointer user)
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{
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struct ofono_sim *sim = user;
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struct sim_data *sd = ofono_sim_get_data(sim);
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g_isi_client_set_debug(sd->client, sim_debug, NULL);
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ofono_sim_register(sim);
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return FALSE;
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}
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static int isi_sim_probe(struct ofono_sim *sim, unsigned int vendor,
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void *user)
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{
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GIsiModem *idx = user;
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struct sim_data *sd = g_try_new0(struct sim_data, 1);
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if (!sd)
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return -ENOMEM;
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sd->client = g_isi_client_create(idx, PN_SIM);
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if (!sd->client)
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return -ENOMEM;
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ofono_sim_set_data(sim, sd);
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g_idle_add(isi_sim_register, sim);
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return 0;
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}
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static void isi_sim_remove(struct ofono_sim *sim)
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{
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struct sim_data *data = ofono_sim_get_data(sim);
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if (data) {
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g_isi_client_destroy(data->client);
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g_free(data);
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}
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}
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static struct ofono_sim_driver driver = {
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.name = "isimodem",
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.probe = isi_sim_probe,
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.remove = isi_sim_remove,
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.read_file_info = isi_read_file_info,
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.read_file_transparent = isi_read_file_transparent,
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.read_file_linear = isi_read_file_linear,
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.read_file_cyclic = isi_read_file_cyclic,
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.write_file_transparent = isi_write_file_transparent,
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.write_file_linear = isi_write_file_linear,
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.write_file_cyclic = isi_write_file_cyclic,
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.read_imsi = isi_read_imsi
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};
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void isi_sim_init()
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{
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ofono_sim_driver_register(&driver);
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}
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void isi_sim_exit()
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{
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ofono_sim_driver_unregister(&driver);
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}
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