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-rw-r--r--ss.c284
1 files changed, 284 insertions, 0 deletions
diff --git a/ss.c b/ss.c
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index 0000000..45fc48d
--- /dev/null
+++ b/ss.c
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+/*
+ * This file is part of Samsung-RIL.
+ *
+ * Copyright (C) 2013 Paul Kocialkowski <contact@paulk.fr>
+ * Copyright (C) 2017 Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
+ *
+ * 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 <utils.h>
+
+unsigned char global_ussd_state;
+
+int ipc_ss_ussd_callback(struct ipc_message *message)
+{
+ struct ipc_gen_phone_res_data *data;
+ int rc;
+
+ if (message == NULL || message->data == NULL || message->size < sizeof(struct ipc_gen_phone_res_data))
+ return -1;
+
+ data = (struct ipc_gen_phone_res_data *) message->data;
+
+ rc = ipc_gen_phone_res_check(data);
+ if (rc < 0) {
+ RIL_LOGE("There was an error, aborting USSD request");
+ goto error;
+ }
+
+ ril_request_complete(ipc_fmt_request_token(message->aseq), RIL_E_SUCCESS, NULL, 0);
+ global_ussd_state = 0;
+ goto complete;
+
+error:
+ ril_request_complete(ipc_fmt_request_token(message->aseq), RIL_E_GENERIC_FAILURE, NULL, 0);
+
+complete:
+ return 0;
+}
+
+int ril_request_send_ussd(void *data, size_t size, RIL_Token token)
+{
+ char *data_enc = NULL;
+ int data_enc_len = 0;
+ char *message =NULL;
+ struct ipc_ss_ussd_header *ussd = NULL;
+ int message_size = 0xc0;
+ int rc;
+
+ if (data == NULL || size < sizeof(char *))
+ goto error;
+
+ rc = ril_radio_state_check(RADIO_STATE_SIM_NOT_READY);
+ if (rc < 0)
+ return RIL_REQUEST_UNHANDLED;
+
+ switch (global_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:
+ RIL_LOGD("USSD Tx encoding is GSM7");
+
+ data_enc_len = ascii2gsm7_ussd(data, (unsigned char**)&data_enc, (int) size);
+ if (data_enc_len > message_size) {
+ RIL_LOGE("USSD message size is too long, aborting");
+ ril_request_complete(token, RIL_E_GENERIC_FAILURE, NULL, 0);
+
+ free(data_enc);
+
+ return RIL_REQUEST_COMPLETED;
+ }
+
+ message = malloc(message_size);
+ memset(message, 0, message_size);
+
+ ussd = (struct ipc_ss_ussd_header *) 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_header)), data_enc, data_enc_len);
+
+ free(data_enc);
+
+ break;
+ case IPC_SS_USSD_ACTION_REQUIRE:
+ default:
+ RIL_LOGD("USSD Tx encoding is ASCII");
+
+ data_enc_len = asprintf(&data_enc, "%s", (char*)data);
+
+ if (data_enc_len > message_size) {
+ RIL_LOGE("USSD message size is too long, aborting");
+ ril_request_complete(token, RIL_E_GENERIC_FAILURE, NULL, 0);
+
+ free(data_enc);
+
+ return RIL_REQUEST_COMPLETED;
+ }
+
+ message = malloc(message_size);
+ memset(message, 0, message_size);
+
+ ussd = (struct ipc_ss_ussd_header *) 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_header)), data_enc, data_enc_len);
+
+ free(data_enc);
+
+ break;
+ }
+
+ if (message == NULL) {
+ RIL_LOGE("USSD message is empty, aborting");
+
+ ril_request_complete(token, RIL_E_GENERIC_FAILURE, NULL, 0);
+ return RIL_REQUEST_COMPLETED;
+ }
+
+ ipc_gen_phone_res_expect_callback(ipc_fmt_request_seq(token), IPC_SS_USSD,
+ ipc_ss_ussd_callback);
+
+ rc = ipc_fmt_send(ipc_fmt_request_seq(token), IPC_SS_USSD, IPC_TYPE_EXEC, (void *) message, message_size);
+ if (rc < 0)
+ goto error;
+
+ rc = RIL_REQUEST_HANDLED;
+ goto complete;
+
+error:
+ ril_request_complete(token, RIL_E_GENERIC_FAILURE, NULL, 0);
+ return RIL_REQUEST_COMPLETED;
+complete:
+ return rc;
+}
+
+int ril_request_cancel_ussd(void *data, size_t size, RIL_Token token)
+{
+ struct ipc_ss_ussd_header ussd;
+ int rc;
+
+ rc = ril_radio_state_check(RADIO_STATE_SIM_READY);
+ if (rc < 0)
+ return RIL_REQUEST_UNHANDLED;
+
+ memset(&ussd, 0, sizeof(ussd));
+
+ ussd.state = IPC_SS_USSD_TERMINATED_BY_NET;
+ global_ussd_state = IPC_SS_USSD_TERMINATED_BY_NET;
+
+ rc = ipc_gen_phone_res_expect_complete(ipc_fmt_request_seq(token), IPC_SS_USSD);
+ if (rc < 0)
+ goto error;
+
+ rc = ipc_fmt_send(ipc_fmt_request_seq(token), IPC_SS_USSD, IPC_TYPE_EXEC, (void *) &ussd, sizeof(ussd));
+ if (rc < 0)
+ goto error;
+
+ rc = RIL_REQUEST_HANDLED;
+ goto complete;
+
+error:
+ ril_request_complete(token, RIL_E_GENERIC_FAILURE, NULL, 0);
+ rc = RIL_REQUEST_COMPLETED;
+
+complete:
+ return rc;
+}
+
+void ipc2ril_ussd_state(struct ipc_ss_ussd_header *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;
+ }
+}
+
+int ipc_ss_ussd(struct ipc_message *message)
+{
+ char *data_dec = NULL;
+ int data_dec_len = 0;
+ sms_coding_scheme coding_scheme;
+
+ char *ussd_message[2];
+
+ struct ipc_ss_ussd_header *ussd = NULL;
+ unsigned char state;
+
+ if (message == NULL || message->data == NULL || message->size < sizeof(struct ipc_ss_ussd_header))
+ goto error;
+
+ memset(ussd_message, 0, sizeof(ussd_message));
+
+ ussd = (struct ipc_ss_ussd_header *) message->data;
+
+ ipc2ril_ussd_state(ussd, ussd_message);
+
+ global_ussd_state = ussd->state;
+
+ if (ussd->length > 0 && message->size > 0 && message->data != NULL) {
+ coding_scheme = sms_get_coding_scheme(ussd->dcs);
+ switch (coding_scheme) {
+ case SMS_CODING_SCHEME_GSM7:
+ RIL_LOGD("USSD Rx encoding is GSM7");
+
+ data_dec_len = gsm72ascii((unsigned char *) message->data
+ + sizeof(struct ipc_ss_ussd_header), &data_dec, message->size - sizeof(struct ipc_ss_ussd_header));
+ asprintf(&ussd_message[1], "%s", data_dec);
+ ussd_message[1][data_dec_len] = '\0';
+
+ break;
+ case SMS_CODING_SCHEME_UCS2:
+ RIL_LOGD("USSD Rx encoding %x is UCS2", ussd->dcs);
+
+ data_dec_len = message->size - sizeof(struct ipc_ss_ussd_header);
+ ussd_message[1] = malloc(data_dec_len * 4 + 1);
+
+ int i, result = 0;
+ char *ucs2 = (char*)message->data + sizeof(struct ipc_ss_ussd_header);
+ for (i = 0; i < data_dec_len; i += 2) {
+ int c = (ucs2[i] << 8) | ucs2[1 + i];
+ result += utf8_write(ussd_message[1], result, c);
+ }
+ ussd_message[1][result] = '\0';
+ break;
+ default:
+ RIL_LOGD("USSD Rx encoding %x is unknown, assuming ASCII",
+ ussd->dcs);
+
+ data_dec_len = message->size - sizeof(struct ipc_ss_ussd_header);
+ asprintf(&ussd_message[1], "%s", (unsigned char *) message->data + sizeof(struct ipc_ss_ussd_header));
+ ussd_message[1][data_dec_len] = '\0';
+ break;
+ }
+ }
+
+ ril_request_unsolicited(RIL_UNSOL_ON_USSD, ussd_message, sizeof(ussd_message));
+
+ return 0;
+
+error:
+ ril_request_complete(ipc_fmt_request_token(message->aseq), RIL_E_GENERIC_FAILURE, NULL, 0);
+ return 0;
+}
generated by cgit v1.1 at 2024-05-03 13:16:44 +0000