62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
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/* (C) 2012-2013 by Harald Welte <laforge@gnumonks.org>
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*
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* 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 Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "smpp_smsc.h"
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#include <osmocom/core/logging.h>
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int smpp_determine_scheme(uint8_t dcs, uint8_t *data_coding, int *mode)
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{
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if ((dcs & 0xF0) == 0xF0) {
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if (dcs & 0x04) {
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/* bit 2 == 1: 8bit data */
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*data_coding = 0x02;
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*mode = MODE_8BIT;
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} else {
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/* bit 2 == 0: default alphabet */
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*data_coding = 0x01;
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*mode = MODE_7BIT;
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}
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} else if ((dcs & 0xE0) == 0) {
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switch (dcs & 0xC) {
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case 0:
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*data_coding = 0x01;
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*mode = MODE_7BIT;
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break;
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case 4:
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*data_coding = 0x02;
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*mode = MODE_8BIT;
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break;
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case 8:
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*data_coding = 0x08; /* UCS-2 */
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*mode = MODE_8BIT;
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break;
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default:
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goto unknown_mo;
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}
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} else {
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unknown_mo:
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LOGP(DLSMS, LOGL_ERROR, "SMPP MO Unknown Data Coding 0x%02x\n", dcs);
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return -1;
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}
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return 0;
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}
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