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/*
* This file is part of Samsung-RIL.
*
* Copyright (C) 2012 Paul Kocialkowski <contact@paulk.fr>
*
* Samsung-RIL is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Samsung-RIL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Samsung-RIL. If not, see <http://www.gnu.org/licenses/>.
*
*/
#define LOG_TAG "RIL-SS"
#include <utils/Log.h>
#include "samsung-ril.h"
#include "util.h"
void ipc_ss_ussd_complete(struct ipc_message_info *info)
{
struct ipc_gen_phone_res *phone_res;
int rc;
phone_res = (struct ipc_gen_phone_res *) info->data;
rc = ipc_gen_phone_res_check(phone_res);
if (rc < 0) {
LOGE("There was an error, aborting USSD request");
ril_request_complete(ril_request_get_token(info->aseq), RIL_E_GENERIC_FAILURE, NULL, 0);
ril_data.state.ussd_state = 0;
return;
}
ril_request_complete(ril_request_get_token(info->aseq), RIL_E_SUCCESS, NULL, 0);
}
void ril_request_send_ussd(RIL_Token t, void *data, size_t length)
{
char *data_enc = NULL;
int data_enc_len = 0;
char *message =NULL;
struct ipc_ss_ussd *ussd = NULL;
int message_size = 0xc0;
if (data == NULL || length < (int) sizeof(char *))
goto error;
switch (ril_data.state.ussd_state) {
case 0:
case IPC_SS_USSD_NO_ACTION_REQUIRE:
case IPC_SS_USSD_TERMINATED_BY_NET:
case IPC_SS_USSD_OTHER_CLIENT:
case IPC_SS_USSD_NOT_SUPPORT:
case IPC_SS_USSD_TIME_OUT:
LOGD("USSD Tx encoding is GSM7");
data_enc_len = ascii2gsm7(data, (unsigned char**)&data_enc, length);
if (data_enc_len > message_size) {
LOGE("USSD message size is too long, aborting");
ril_request_complete(t, RIL_E_GENERIC_FAILURE, NULL, 0);
free(data_enc);
return;
}
message = malloc(message_size);
memset(message, 0, message_size);
ussd = (struct ipc_ss_ussd *) message;
ussd->state = IPC_SS_USSD_NO_ACTION_REQUIRE;
ussd->dcs = 0x0f; // GSM7 in that case
ussd->length = data_enc_len;
memcpy((void *) (message + sizeof(struct ipc_ss_ussd)), data_enc, data_enc_len);
free(data_enc);
break;
case IPC_SS_USSD_ACTION_REQUIRE:
default:
LOGD("USSD Tx encoding is ASCII");
data_enc_len = asprintf(&data_enc, "%s", (char*)data);
if (data_enc_len > message_size) {
LOGE("USSD message size is too long, aborting");
ril_request_complete(t, RIL_E_GENERIC_FAILURE, NULL, 0);
free(data_enc);
return;
}
message = malloc(message_size);
memset(message, 0, message_size);
ussd = (struct ipc_ss_ussd *) message;
ussd->state = IPC_SS_USSD_ACTION_REQUIRE;
ussd->dcs = 0x0f; // ASCII in that case
ussd->length = data_enc_len;
memcpy((void *) (message + sizeof(struct ipc_ss_ussd)), data_enc, data_enc_len);
free(data_enc);
break;
}
if (message == NULL) {
LOGE("USSD message is empty, aborting");
ril_request_complete(t, RIL_E_GENERIC_FAILURE, NULL, 0);
return;
}
ipc_gen_phone_res_expect_to_func(ril_request_get_id(t), IPC_SS_USSD,
ipc_ss_ussd_complete);
ipc_fmt_send(IPC_SS_USSD, IPC_TYPE_EXEC, (void *) message, message_size, ril_request_get_id(t));
return;
error:
ril_request_complete(t, RIL_E_GENERIC_FAILURE, NULL, 0);
}
void ril_request_cancel_ussd(RIL_Token t, void *data, size_t length)
{
struct ipc_ss_ussd ussd;
memset(&ussd, 0, sizeof(ussd));
ussd.state = IPC_SS_USSD_TERMINATED_BY_NET;
ril_data.state.ussd_state = IPC_SS_USSD_TERMINATED_BY_NET;
ipc_gen_phone_res_expect_to_complete(ril_request_get_id(t), IPC_SS_USSD);
ipc_fmt_send(IPC_SS_USSD, IPC_TYPE_EXEC, (void *) &ussd, sizeof(ussd), ril_request_get_id(t));
}
void ipc2ril_ussd_state(struct ipc_ss_ussd *ussd, char *message[2])
{
if (ussd == NULL || message == NULL)
return;
switch (ussd->state) {
case IPC_SS_USSD_NO_ACTION_REQUIRE:
asprintf(&message[0], "%d", 0);
break;
case IPC_SS_USSD_ACTION_REQUIRE:
asprintf(&message[0], "%d", 1);
break;
case IPC_SS_USSD_TERMINATED_BY_NET:
asprintf(&message[0], "%d", 2);
break;
case IPC_SS_USSD_OTHER_CLIENT:
asprintf(&message[0], "%d", 3);
break;
case IPC_SS_USSD_NOT_SUPPORT:
asprintf(&message[0], "%d", 4);
break;
case IPC_SS_USSD_TIME_OUT:
asprintf(&message[0], "%d", 5);
break;
}
}
void ipc_ss_ussd(struct ipc_message_info *info)
{
char *data_dec = NULL;
int data_dec_len = 0;
SmsCodingScheme codingScheme;
char *message[2];
struct ipc_ss_ussd *ussd = NULL;
unsigned char state;
if (info->data == NULL || info->length < sizeof(struct ipc_ss_ussd))
goto error;
memset(message, 0, sizeof(message));
ussd = (struct ipc_ss_ussd *) info->data;
ipc2ril_ussd_state(ussd, message);
ril_data.state.ussd_state = ussd->state;
if (ussd->length > 0 && info->length > 0 && info->data != NULL) {
codingScheme = sms_get_coding_scheme(ussd->dcs);
switch (codingScheme) {
case SMS_CODING_SCHEME_GSM7:
LOGD("USSD Rx encoding is GSM7");
data_dec_len = gsm72ascii(info->data
+ sizeof(struct ipc_ss_ussd), &data_dec, info->length - sizeof(struct ipc_ss_ussd));
asprintf(&message[1], "%s", data_dec);
message[1][data_dec_len] = '\0';
break;
case SMS_CODING_SCHEME_UCS2:
LOGD("USSD Rx encoding %x is UCS2", ussd->dcs);
data_dec_len = info->length - sizeof(struct ipc_ss_ussd);
message[1] = malloc(data_dec_len * 4 + 1);
int i, result = 0;
char *ucs2 = (char*)info->data + sizeof(struct ipc_ss_ussd);
for (i = 0; i < data_dec_len; i += 2) {
int c = (ucs2[i] << 8) | ucs2[1 + i];
result += utf8_write(message[1], result, c);
}
message[1][result] = '\0';
break;
default:
LOGD("USSD Rx encoding %x is unknown, assuming ASCII",
ussd->dcs);
data_dec_len = info->length - sizeof(struct ipc_ss_ussd);
asprintf(&message[1], "%s", info->data + sizeof(struct ipc_ss_ussd));
message[1][data_dec_len] = '\0';
break;
}
}
ril_request_unsolicited(RIL_UNSOL_ON_USSD, message, sizeof(message));
return;
error:
ril_request_complete(ril_request_get_token(info->aseq), RIL_E_GENERIC_FAILURE, NULL, 0);
}
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